1 | #include <machine/rtems-bsd-kernel-space.h> |
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2 | |
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3 | /*- |
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4 | * SPDX-License-Identifier: BSD-3-Clause |
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5 | * |
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6 | * Copyright (c) 1989, 1993 |
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7 | * The Regents of the University of California. All rights reserved. |
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8 | * |
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9 | * This code is derived from software contributed to Berkeley by |
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10 | * Rick Macklem at The University of Guelph. |
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11 | * |
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12 | * Redistribution and use in source and binary forms, with or without |
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13 | * modification, are permitted provided that the following conditions |
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14 | * are met: |
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15 | * 1. Redistributions of source code must retain the above copyright |
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16 | * notice, this list of conditions and the following disclaimer. |
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17 | * 2. Redistributions in binary form must reproduce the above copyright |
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18 | * notice, this list of conditions and the following disclaimer in the |
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19 | * documentation and/or other materials provided with the distribution. |
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20 | * 3. Neither the name of the University nor the names of its contributors |
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21 | * may be used to endorse or promote products derived from this software |
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22 | * without specific prior written permission. |
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23 | * |
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24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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34 | * SUCH DAMAGE. |
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35 | * |
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36 | */ |
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37 | |
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38 | #include <sys/cdefs.h> |
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39 | __FBSDID("$FreeBSD$"); |
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40 | |
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41 | /* |
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42 | * Rpc op calls, generally called from the vnode op calls or through the |
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43 | * buffer cache, for NFS v2, 3 and 4. |
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44 | * These do not normally make any changes to vnode arguments or use |
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45 | * structures that might change between the VFS variants. The returned |
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46 | * arguments are all at the end, after the NFSPROC_T *p one. |
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47 | */ |
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48 | |
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49 | #ifndef APPLEKEXT |
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50 | #include <rtems/bsd/local/opt_inet6.h> |
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51 | |
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52 | #include <fs/nfs/nfsport.h> |
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53 | #include <sys/sysctl.h> |
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54 | #include <sys/taskqueue.h> |
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55 | |
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56 | SYSCTL_DECL(_vfs_nfs); |
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57 | |
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58 | static int nfsignore_eexist = 0; |
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59 | SYSCTL_INT(_vfs_nfs, OID_AUTO, ignore_eexist, CTLFLAG_RW, |
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60 | &nfsignore_eexist, 0, "NFS ignore EEXIST replies for mkdir/symlink"); |
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61 | |
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62 | static int nfscl_dssameconn = 0; |
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63 | SYSCTL_INT(_vfs_nfs, OID_AUTO, dssameconn, CTLFLAG_RW, |
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64 | &nfscl_dssameconn, 0, "Use same TCP connection to multiple DSs"); |
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65 | |
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66 | /* |
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67 | * Global variables |
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68 | */ |
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69 | extern int nfs_numnfscbd; |
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70 | extern struct timeval nfsboottime; |
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71 | extern u_int32_t newnfs_false, newnfs_true; |
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72 | extern nfstype nfsv34_type[9]; |
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73 | extern int nfsrv_useacl; |
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74 | extern char nfsv4_callbackaddr[INET6_ADDRSTRLEN]; |
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75 | extern int nfscl_debuglevel; |
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76 | extern int nfs_pnfsiothreads; |
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77 | NFSCLSTATEMUTEX; |
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78 | int nfstest_outofseq = 0; |
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79 | int nfscl_assumeposixlocks = 1; |
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80 | int nfscl_enablecallb = 0; |
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81 | short nfsv4_cbport = NFSV4_CBPORT; |
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82 | int nfstest_openallsetattr = 0; |
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83 | #endif /* !APPLEKEXT */ |
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84 | |
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85 | #define DIRHDSIZ offsetof(struct dirent, d_name) |
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86 | |
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87 | /* |
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88 | * nfscl_getsameserver() can return one of three values: |
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89 | * NFSDSP_USETHISSESSION - Use this session for the DS. |
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90 | * NFSDSP_SEQTHISSESSION - Use the nfsclds_sequence field of this dsp for new |
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91 | * session. |
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92 | * NFSDSP_NOTFOUND - No matching server was found. |
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93 | */ |
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94 | enum nfsclds_state { |
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95 | NFSDSP_USETHISSESSION = 0, |
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96 | NFSDSP_SEQTHISSESSION = 1, |
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97 | NFSDSP_NOTFOUND = 2, |
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98 | }; |
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99 | |
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100 | /* |
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101 | * Do a write RPC on a DS data file, using this structure for the arguments, |
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102 | * so that this function can be executed by a separate kernel process. |
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103 | */ |
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104 | struct nfsclwritedsdorpc { |
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105 | int done; |
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106 | int inprog; |
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107 | struct task tsk; |
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108 | struct vnode *vp; |
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109 | int iomode; |
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110 | int must_commit; |
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111 | nfsv4stateid_t *stateidp; |
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112 | struct nfsclds *dsp; |
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113 | uint64_t off; |
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114 | int len; |
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115 | struct nfsfh *fhp; |
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116 | struct mbuf *m; |
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117 | int vers; |
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118 | int minorvers; |
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119 | struct ucred *cred; |
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120 | NFSPROC_T *p; |
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121 | int err; |
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122 | }; |
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123 | |
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124 | static int nfsrpc_setattrrpc(vnode_t , struct vattr *, nfsv4stateid_t *, |
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125 | struct ucred *, NFSPROC_T *, struct nfsvattr *, int *, void *); |
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126 | static int nfsrpc_readrpc(vnode_t , struct uio *, struct ucred *, |
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127 | nfsv4stateid_t *, NFSPROC_T *, struct nfsvattr *, int *, void *); |
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128 | static int nfsrpc_writerpc(vnode_t , struct uio *, int *, int *, |
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129 | struct ucred *, nfsv4stateid_t *, NFSPROC_T *, struct nfsvattr *, int *, |
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130 | void *); |
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131 | static int nfsrpc_createv23(vnode_t , char *, int, struct vattr *, |
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132 | nfsquad_t, int, struct ucred *, NFSPROC_T *, struct nfsvattr *, |
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133 | struct nfsvattr *, struct nfsfh **, int *, int *, void *); |
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134 | static int nfsrpc_createv4(vnode_t , char *, int, struct vattr *, |
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135 | nfsquad_t, int, struct nfsclowner *, struct nfscldeleg **, struct ucred *, |
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136 | NFSPROC_T *, struct nfsvattr *, struct nfsvattr *, struct nfsfh **, int *, |
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137 | int *, void *, int *); |
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138 | static int nfsrpc_locku(struct nfsrv_descript *, struct nfsmount *, |
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139 | struct nfscllockowner *, u_int64_t, u_int64_t, |
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140 | u_int32_t, struct ucred *, NFSPROC_T *, int); |
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141 | static int nfsrpc_setaclrpc(vnode_t, struct ucred *, NFSPROC_T *, |
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142 | struct acl *, nfsv4stateid_t *, void *); |
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143 | static int nfsrpc_getlayout(struct nfsmount *, vnode_t, struct nfsfh *, int, |
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144 | uint32_t *, nfsv4stateid_t *, uint64_t, struct nfscllayout **, |
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145 | struct ucred *, NFSPROC_T *); |
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146 | static int nfsrpc_fillsa(struct nfsmount *, struct sockaddr_in *, |
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147 | struct sockaddr_in6 *, sa_family_t, int, struct nfsclds **, NFSPROC_T *); |
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148 | static void nfscl_initsessionslots(struct nfsclsession *); |
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149 | static int nfscl_doflayoutio(vnode_t, struct uio *, int *, int *, int *, |
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150 | nfsv4stateid_t *, int, struct nfscldevinfo *, struct nfscllayout *, |
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151 | struct nfsclflayout *, uint64_t, uint64_t, int, struct ucred *, |
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152 | NFSPROC_T *); |
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153 | static int nfscl_dofflayoutio(vnode_t, struct uio *, int *, int *, int *, |
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154 | nfsv4stateid_t *, int, struct nfscldevinfo *, struct nfscllayout *, |
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155 | struct nfsclflayout *, uint64_t, uint64_t, int, int, struct mbuf *, |
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156 | struct nfsclwritedsdorpc *, struct ucred *, NFSPROC_T *); |
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157 | static struct mbuf *nfsm_copym(struct mbuf *, int, int); |
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158 | static int nfsrpc_readds(vnode_t, struct uio *, nfsv4stateid_t *, int *, |
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159 | struct nfsclds *, uint64_t, int, struct nfsfh *, int, int, int, |
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160 | struct ucred *, NFSPROC_T *); |
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161 | static int nfsrpc_writeds(vnode_t, struct uio *, int *, int *, |
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162 | nfsv4stateid_t *, struct nfsclds *, uint64_t, int, |
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163 | struct nfsfh *, int, int, int, int, struct ucred *, NFSPROC_T *); |
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164 | static int nfsio_writedsmir(vnode_t, int *, int *, nfsv4stateid_t *, |
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165 | struct nfsclds *, uint64_t, int, struct nfsfh *, struct mbuf *, int, int, |
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166 | struct nfsclwritedsdorpc *, struct ucred *, NFSPROC_T *); |
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167 | static int nfsrpc_writedsmir(vnode_t, int *, int *, nfsv4stateid_t *, |
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168 | struct nfsclds *, uint64_t, int, struct nfsfh *, struct mbuf *, int, int, |
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169 | struct ucred *, NFSPROC_T *); |
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170 | static enum nfsclds_state nfscl_getsameserver(struct nfsmount *, |
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171 | struct nfsclds *, struct nfsclds **, uint32_t *); |
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172 | static int nfsio_commitds(vnode_t, uint64_t, int, struct nfsclds *, |
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173 | struct nfsfh *, int, int, struct nfsclwritedsdorpc *, struct ucred *, |
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174 | NFSPROC_T *); |
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175 | static int nfsrpc_commitds(vnode_t, uint64_t, int, struct nfsclds *, |
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176 | struct nfsfh *, int, int, struct ucred *, NFSPROC_T *); |
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177 | static void nfsrv_setuplayoutget(struct nfsrv_descript *, int, uint64_t, |
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178 | uint64_t, uint64_t, nfsv4stateid_t *, int, int, int); |
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179 | static int nfsrv_parseug(struct nfsrv_descript *, int, uid_t *, gid_t *, |
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180 | NFSPROC_T *); |
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181 | static int nfsrv_parselayoutget(struct nfsrv_descript *, nfsv4stateid_t *, |
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182 | int *, struct nfsclflayouthead *); |
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183 | static int nfsrpc_getopenlayout(struct nfsmount *, vnode_t, u_int8_t *, |
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184 | int, uint8_t *, int, uint32_t, struct nfsclopen *, uint8_t *, int, |
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185 | struct nfscldeleg **, struct ucred *, NFSPROC_T *); |
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186 | static int nfsrpc_getcreatelayout(vnode_t, char *, int, struct vattr *, |
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187 | nfsquad_t, int, struct nfsclowner *, struct nfscldeleg **, |
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188 | struct ucred *, NFSPROC_T *, struct nfsvattr *, struct nfsvattr *, |
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189 | struct nfsfh **, int *, int *, void *, int *); |
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190 | static int nfsrpc_openlayoutrpc(struct nfsmount *, vnode_t, u_int8_t *, |
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191 | int, uint8_t *, int, uint32_t, struct nfsclopen *, uint8_t *, int, |
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192 | struct nfscldeleg **, nfsv4stateid_t *, int, int, int, int *, |
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193 | struct nfsclflayouthead *, int *, struct ucred *, NFSPROC_T *); |
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194 | static int nfsrpc_createlayout(vnode_t, char *, int, struct vattr *, |
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195 | nfsquad_t, int, struct nfsclowner *, struct nfscldeleg **, |
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196 | struct ucred *, NFSPROC_T *, struct nfsvattr *, struct nfsvattr *, |
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197 | struct nfsfh **, int *, int *, void *, int *, nfsv4stateid_t *, |
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198 | int, int, int, int *, struct nfsclflayouthead *, int *); |
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199 | static int nfsrpc_layoutget(struct nfsmount *, uint8_t *, int, int, uint64_t, |
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200 | uint64_t, uint64_t, int, int, nfsv4stateid_t *, int *, |
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201 | struct nfsclflayouthead *, struct ucred *, NFSPROC_T *, void *); |
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202 | static int nfsrpc_layoutgetres(struct nfsmount *, vnode_t, uint8_t *, |
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203 | int, nfsv4stateid_t *, int, uint32_t *, struct nfscllayout **, |
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204 | struct nfsclflayouthead *, int, int, int *, struct ucred *, NFSPROC_T *); |
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205 | |
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206 | int nfs_pnfsio(task_fn_t *, void *); |
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207 | |
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208 | /* |
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209 | * nfs null call from vfs. |
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210 | */ |
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211 | APPLESTATIC int |
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212 | nfsrpc_null(vnode_t vp, struct ucred *cred, NFSPROC_T *p) |
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213 | { |
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214 | int error; |
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215 | struct nfsrv_descript nfsd, *nd = &nfsd; |
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216 | |
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217 | NFSCL_REQSTART(nd, NFSPROC_NULL, vp); |
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218 | error = nfscl_request(nd, vp, p, cred, NULL); |
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219 | if (nd->nd_repstat && !error) |
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220 | error = nd->nd_repstat; |
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221 | mbuf_freem(nd->nd_mrep); |
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222 | return (error); |
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223 | } |
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224 | |
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225 | /* |
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226 | * nfs access rpc op. |
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227 | * For nfs version 3 and 4, use the access rpc to check accessibility. If file |
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228 | * modes are changed on the server, accesses might still fail later. |
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229 | */ |
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230 | APPLESTATIC int |
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231 | nfsrpc_access(vnode_t vp, int acmode, struct ucred *cred, |
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232 | NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp) |
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233 | { |
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234 | int error; |
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235 | u_int32_t mode, rmode; |
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236 | |
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237 | if (acmode & VREAD) |
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238 | mode = NFSACCESS_READ; |
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239 | else |
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240 | mode = 0; |
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241 | if (vnode_vtype(vp) == VDIR) { |
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242 | if (acmode & VWRITE) |
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243 | mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND | |
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244 | NFSACCESS_DELETE); |
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245 | if (acmode & VEXEC) |
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246 | mode |= NFSACCESS_LOOKUP; |
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247 | } else { |
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248 | if (acmode & VWRITE) |
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249 | mode |= (NFSACCESS_MODIFY | NFSACCESS_EXTEND); |
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250 | if (acmode & VEXEC) |
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251 | mode |= NFSACCESS_EXECUTE; |
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252 | } |
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253 | |
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254 | /* |
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255 | * Now, just call nfsrpc_accessrpc() to do the actual RPC. |
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256 | */ |
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257 | error = nfsrpc_accessrpc(vp, mode, cred, p, nap, attrflagp, &rmode, |
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258 | NULL); |
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259 | |
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260 | /* |
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261 | * The NFS V3 spec does not clarify whether or not |
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262 | * the returned access bits can be a superset of |
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263 | * the ones requested, so... |
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264 | */ |
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265 | if (!error && (rmode & mode) != mode) |
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266 | error = EACCES; |
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267 | return (error); |
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268 | } |
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269 | |
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270 | /* |
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271 | * The actual rpc, separated out for Darwin. |
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272 | */ |
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273 | APPLESTATIC int |
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274 | nfsrpc_accessrpc(vnode_t vp, u_int32_t mode, struct ucred *cred, |
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275 | NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, u_int32_t *rmodep, |
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276 | void *stuff) |
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277 | { |
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278 | u_int32_t *tl; |
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279 | u_int32_t supported, rmode; |
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280 | int error; |
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281 | struct nfsrv_descript nfsd, *nd = &nfsd; |
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282 | nfsattrbit_t attrbits; |
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283 | |
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284 | *attrflagp = 0; |
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285 | supported = mode; |
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286 | NFSCL_REQSTART(nd, NFSPROC_ACCESS, vp); |
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287 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
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288 | *tl = txdr_unsigned(mode); |
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289 | if (nd->nd_flag & ND_NFSV4) { |
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290 | /* |
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291 | * And do a Getattr op. |
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292 | */ |
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293 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
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294 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
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295 | NFSGETATTR_ATTRBIT(&attrbits); |
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296 | (void) nfsrv_putattrbit(nd, &attrbits); |
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297 | } |
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298 | error = nfscl_request(nd, vp, p, cred, stuff); |
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299 | if (error) |
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300 | return (error); |
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301 | if (nd->nd_flag & ND_NFSV3) { |
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302 | error = nfscl_postop_attr(nd, nap, attrflagp, stuff); |
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303 | if (error) |
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304 | goto nfsmout; |
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305 | } |
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306 | if (!nd->nd_repstat) { |
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307 | if (nd->nd_flag & ND_NFSV4) { |
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308 | NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
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309 | supported = fxdr_unsigned(u_int32_t, *tl++); |
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310 | } else { |
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311 | NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); |
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312 | } |
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313 | rmode = fxdr_unsigned(u_int32_t, *tl); |
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314 | if (nd->nd_flag & ND_NFSV4) |
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315 | error = nfscl_postop_attr(nd, nap, attrflagp, stuff); |
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316 | |
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317 | /* |
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318 | * It's not obvious what should be done about |
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319 | * unsupported access modes. For now, be paranoid |
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320 | * and clear the unsupported ones. |
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321 | */ |
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322 | rmode &= supported; |
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323 | *rmodep = rmode; |
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324 | } else |
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325 | error = nd->nd_repstat; |
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326 | nfsmout: |
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327 | mbuf_freem(nd->nd_mrep); |
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328 | return (error); |
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329 | } |
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330 | |
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331 | /* |
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332 | * nfs open rpc |
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333 | */ |
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334 | APPLESTATIC int |
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335 | nfsrpc_open(vnode_t vp, int amode, struct ucred *cred, NFSPROC_T *p) |
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336 | { |
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337 | struct nfsclopen *op; |
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338 | struct nfscldeleg *dp; |
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339 | struct nfsfh *nfhp; |
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340 | struct nfsnode *np = VTONFS(vp); |
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341 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
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342 | u_int32_t mode, clidrev; |
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343 | int ret, newone, error, expireret = 0, retrycnt; |
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344 | |
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345 | /* |
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346 | * For NFSv4, Open Ops are only done on Regular Files. |
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347 | */ |
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348 | if (vnode_vtype(vp) != VREG) |
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349 | return (0); |
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350 | mode = 0; |
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351 | if (amode & FREAD) |
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352 | mode |= NFSV4OPEN_ACCESSREAD; |
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353 | if (amode & FWRITE) |
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354 | mode |= NFSV4OPEN_ACCESSWRITE; |
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355 | nfhp = np->n_fhp; |
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356 | |
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357 | retrycnt = 0; |
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358 | #ifdef notdef |
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359 | { char name[100]; int namel; |
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360 | namel = (np->n_v4->n4_namelen < 100) ? np->n_v4->n4_namelen : 99; |
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361 | bcopy(NFS4NODENAME(np->n_v4), name, namel); |
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362 | name[namel] = '\0'; |
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363 | printf("rpcopen p=0x%x name=%s",p->p_pid,name); |
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364 | if (nfhp->nfh_len > 0) printf(" fh=0x%x\n",nfhp->nfh_fh[12]); |
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365 | else printf(" fhl=0\n"); |
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366 | } |
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367 | #endif |
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368 | do { |
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369 | dp = NULL; |
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370 | error = nfscl_open(vp, nfhp->nfh_fh, nfhp->nfh_len, mode, 1, |
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371 | cred, p, NULL, &op, &newone, &ret, 1); |
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372 | if (error) { |
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373 | return (error); |
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374 | } |
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375 | if (nmp->nm_clp != NULL) |
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376 | clidrev = nmp->nm_clp->nfsc_clientidrev; |
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377 | else |
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378 | clidrev = 0; |
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379 | if (ret == NFSCLOPEN_DOOPEN) { |
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380 | if (np->n_v4 != NULL) { |
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381 | /* |
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382 | * For the first attempt, try and get a layout, if |
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383 | * pNFS is enabled for the mount. |
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384 | */ |
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385 | if (!NFSHASPNFS(nmp) || nfscl_enablecallb == 0 || |
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386 | nfs_numnfscbd == 0 || |
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387 | (np->n_flag & NNOLAYOUT) != 0 || retrycnt > 0) |
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388 | error = nfsrpc_openrpc(nmp, vp, |
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389 | np->n_v4->n4_data, |
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390 | np->n_v4->n4_fhlen, np->n_fhp->nfh_fh, |
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391 | np->n_fhp->nfh_len, mode, op, |
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392 | NFS4NODENAME(np->n_v4), |
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393 | np->n_v4->n4_namelen, |
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394 | &dp, 0, 0x0, cred, p, 0, 0); |
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395 | else |
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396 | error = nfsrpc_getopenlayout(nmp, vp, |
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397 | np->n_v4->n4_data, |
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398 | np->n_v4->n4_fhlen, np->n_fhp->nfh_fh, |
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399 | np->n_fhp->nfh_len, mode, op, |
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400 | NFS4NODENAME(np->n_v4), |
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401 | np->n_v4->n4_namelen, &dp, cred, p); |
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402 | if (dp != NULL) { |
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403 | #ifdef APPLE |
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404 | OSBitAndAtomic((int32_t)~NDELEGMOD, (UInt32 *)&np->n_flag); |
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405 | #else |
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406 | NFSLOCKNODE(np); |
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407 | np->n_flag &= ~NDELEGMOD; |
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408 | /* |
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409 | * Invalidate the attribute cache, so that |
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410 | * attributes that pre-date the issue of a |
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411 | * delegation are not cached, since the |
---|
412 | * cached attributes will remain valid while |
---|
413 | * the delegation is held. |
---|
414 | */ |
---|
415 | NFSINVALATTRCACHE(np); |
---|
416 | NFSUNLOCKNODE(np); |
---|
417 | #endif |
---|
418 | (void) nfscl_deleg(nmp->nm_mountp, |
---|
419 | op->nfso_own->nfsow_clp, |
---|
420 | nfhp->nfh_fh, nfhp->nfh_len, cred, p, &dp); |
---|
421 | } |
---|
422 | } else { |
---|
423 | error = EIO; |
---|
424 | } |
---|
425 | newnfs_copyincred(cred, &op->nfso_cred); |
---|
426 | } else if (ret == NFSCLOPEN_SETCRED) |
---|
427 | /* |
---|
428 | * This is a new local open on a delegation. It needs |
---|
429 | * to have credentials so that an open can be done |
---|
430 | * against the server during recovery. |
---|
431 | */ |
---|
432 | newnfs_copyincred(cred, &op->nfso_cred); |
---|
433 | |
---|
434 | /* |
---|
435 | * nfso_opencnt is the count of how many VOP_OPEN()s have |
---|
436 | * been done on this Open successfully and a VOP_CLOSE() |
---|
437 | * is expected for each of these. |
---|
438 | * If error is non-zero, don't increment it, since the Open |
---|
439 | * hasn't succeeded yet. |
---|
440 | */ |
---|
441 | if (!error) |
---|
442 | op->nfso_opencnt++; |
---|
443 | nfscl_openrelease(nmp, op, error, newone); |
---|
444 | if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || |
---|
445 | error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || |
---|
446 | error == NFSERR_BADSESSION) { |
---|
447 | (void) nfs_catnap(PZERO, error, "nfs_open"); |
---|
448 | } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) |
---|
449 | && clidrev != 0) { |
---|
450 | expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); |
---|
451 | retrycnt++; |
---|
452 | } |
---|
453 | } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || |
---|
454 | error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || |
---|
455 | error == NFSERR_BADSESSION || |
---|
456 | ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && |
---|
457 | expireret == 0 && clidrev != 0 && retrycnt < 4)); |
---|
458 | if (error && retrycnt >= 4) |
---|
459 | error = EIO; |
---|
460 | return (error); |
---|
461 | } |
---|
462 | |
---|
463 | /* |
---|
464 | * the actual open rpc |
---|
465 | */ |
---|
466 | APPLESTATIC int |
---|
467 | nfsrpc_openrpc(struct nfsmount *nmp, vnode_t vp, u_int8_t *nfhp, int fhlen, |
---|
468 | u_int8_t *newfhp, int newfhlen, u_int32_t mode, struct nfsclopen *op, |
---|
469 | u_int8_t *name, int namelen, struct nfscldeleg **dpp, |
---|
470 | int reclaim, u_int32_t delegtype, struct ucred *cred, NFSPROC_T *p, |
---|
471 | int syscred, int recursed) |
---|
472 | { |
---|
473 | u_int32_t *tl; |
---|
474 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
475 | struct nfscldeleg *dp, *ndp = NULL; |
---|
476 | struct nfsvattr nfsva; |
---|
477 | u_int32_t rflags, deleg; |
---|
478 | nfsattrbit_t attrbits; |
---|
479 | int error, ret, acesize, limitby; |
---|
480 | struct nfsclsession *tsep; |
---|
481 | |
---|
482 | dp = *dpp; |
---|
483 | *dpp = NULL; |
---|
484 | nfscl_reqstart(nd, NFSPROC_OPEN, nmp, nfhp, fhlen, NULL, NULL, 0, 0); |
---|
485 | NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); |
---|
486 | *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); |
---|
487 | *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH); |
---|
488 | *tl++ = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH); |
---|
489 | tsep = nfsmnt_mdssession(nmp); |
---|
490 | *tl++ = tsep->nfsess_clientid.lval[0]; |
---|
491 | *tl = tsep->nfsess_clientid.lval[1]; |
---|
492 | (void) nfsm_strtom(nd, op->nfso_own->nfsow_owner, NFSV4CL_LOCKNAMELEN); |
---|
493 | NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
494 | *tl++ = txdr_unsigned(NFSV4OPEN_NOCREATE); |
---|
495 | if (reclaim) { |
---|
496 | *tl = txdr_unsigned(NFSV4OPEN_CLAIMPREVIOUS); |
---|
497 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
498 | *tl = txdr_unsigned(delegtype); |
---|
499 | } else { |
---|
500 | if (dp != NULL) { |
---|
501 | *tl = txdr_unsigned(NFSV4OPEN_CLAIMDELEGATECUR); |
---|
502 | NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); |
---|
503 | if (NFSHASNFSV4N(nmp)) |
---|
504 | *tl++ = 0; |
---|
505 | else |
---|
506 | *tl++ = dp->nfsdl_stateid.seqid; |
---|
507 | *tl++ = dp->nfsdl_stateid.other[0]; |
---|
508 | *tl++ = dp->nfsdl_stateid.other[1]; |
---|
509 | *tl = dp->nfsdl_stateid.other[2]; |
---|
510 | } else { |
---|
511 | *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); |
---|
512 | } |
---|
513 | (void) nfsm_strtom(nd, name, namelen); |
---|
514 | } |
---|
515 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
516 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
517 | NFSZERO_ATTRBIT(&attrbits); |
---|
518 | NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_CHANGE); |
---|
519 | NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFY); |
---|
520 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
521 | if (syscred) |
---|
522 | nd->nd_flag |= ND_USEGSSNAME; |
---|
523 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, |
---|
524 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
525 | if (error) |
---|
526 | return (error); |
---|
527 | NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); |
---|
528 | if (!nd->nd_repstat) { |
---|
529 | NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + |
---|
530 | 6 * NFSX_UNSIGNED); |
---|
531 | op->nfso_stateid.seqid = *tl++; |
---|
532 | op->nfso_stateid.other[0] = *tl++; |
---|
533 | op->nfso_stateid.other[1] = *tl++; |
---|
534 | op->nfso_stateid.other[2] = *tl; |
---|
535 | rflags = fxdr_unsigned(u_int32_t, *(tl + 6)); |
---|
536 | error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); |
---|
537 | if (error) |
---|
538 | goto nfsmout; |
---|
539 | NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
540 | deleg = fxdr_unsigned(u_int32_t, *tl); |
---|
541 | if (deleg == NFSV4OPEN_DELEGATEREAD || |
---|
542 | deleg == NFSV4OPEN_DELEGATEWRITE) { |
---|
543 | if (!(op->nfso_own->nfsow_clp->nfsc_flags & |
---|
544 | NFSCLFLAGS_FIRSTDELEG)) |
---|
545 | op->nfso_own->nfsow_clp->nfsc_flags |= |
---|
546 | (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); |
---|
547 | ndp = malloc( |
---|
548 | sizeof (struct nfscldeleg) + newfhlen, |
---|
549 | M_NFSCLDELEG, M_WAITOK); |
---|
550 | LIST_INIT(&ndp->nfsdl_owner); |
---|
551 | LIST_INIT(&ndp->nfsdl_lock); |
---|
552 | ndp->nfsdl_clp = op->nfso_own->nfsow_clp; |
---|
553 | ndp->nfsdl_fhlen = newfhlen; |
---|
554 | NFSBCOPY(newfhp, ndp->nfsdl_fh, newfhlen); |
---|
555 | newnfs_copyincred(cred, &ndp->nfsdl_cred); |
---|
556 | nfscl_lockinit(&ndp->nfsdl_rwlock); |
---|
557 | NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + |
---|
558 | NFSX_UNSIGNED); |
---|
559 | ndp->nfsdl_stateid.seqid = *tl++; |
---|
560 | ndp->nfsdl_stateid.other[0] = *tl++; |
---|
561 | ndp->nfsdl_stateid.other[1] = *tl++; |
---|
562 | ndp->nfsdl_stateid.other[2] = *tl++; |
---|
563 | ret = fxdr_unsigned(int, *tl); |
---|
564 | if (deleg == NFSV4OPEN_DELEGATEWRITE) { |
---|
565 | ndp->nfsdl_flags = NFSCLDL_WRITE; |
---|
566 | /* |
---|
567 | * Indicates how much the file can grow. |
---|
568 | */ |
---|
569 | NFSM_DISSECT(tl, u_int32_t *, |
---|
570 | 3 * NFSX_UNSIGNED); |
---|
571 | limitby = fxdr_unsigned(int, *tl++); |
---|
572 | switch (limitby) { |
---|
573 | case NFSV4OPEN_LIMITSIZE: |
---|
574 | ndp->nfsdl_sizelimit = fxdr_hyper(tl); |
---|
575 | break; |
---|
576 | case NFSV4OPEN_LIMITBLOCKS: |
---|
577 | ndp->nfsdl_sizelimit = |
---|
578 | fxdr_unsigned(u_int64_t, *tl++); |
---|
579 | ndp->nfsdl_sizelimit *= |
---|
580 | fxdr_unsigned(u_int64_t, *tl); |
---|
581 | break; |
---|
582 | default: |
---|
583 | error = NFSERR_BADXDR; |
---|
584 | goto nfsmout; |
---|
585 | } |
---|
586 | } else { |
---|
587 | ndp->nfsdl_flags = NFSCLDL_READ; |
---|
588 | } |
---|
589 | if (ret) |
---|
590 | ndp->nfsdl_flags |= NFSCLDL_RECALL; |
---|
591 | error = nfsrv_dissectace(nd, &ndp->nfsdl_ace, &ret, |
---|
592 | &acesize, p); |
---|
593 | if (error) |
---|
594 | goto nfsmout; |
---|
595 | } else if (deleg != NFSV4OPEN_DELEGATENONE) { |
---|
596 | error = NFSERR_BADXDR; |
---|
597 | goto nfsmout; |
---|
598 | } |
---|
599 | NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
600 | error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, |
---|
601 | NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, |
---|
602 | NULL, NULL, NULL, p, cred); |
---|
603 | if (error) |
---|
604 | goto nfsmout; |
---|
605 | if (ndp != NULL) { |
---|
606 | ndp->nfsdl_change = nfsva.na_filerev; |
---|
607 | ndp->nfsdl_modtime = nfsva.na_mtime; |
---|
608 | ndp->nfsdl_flags |= NFSCLDL_MODTIMESET; |
---|
609 | } |
---|
610 | if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM)) { |
---|
611 | do { |
---|
612 | ret = nfsrpc_openconfirm(vp, newfhp, newfhlen, op, |
---|
613 | cred, p); |
---|
614 | if (ret == NFSERR_DELAY) |
---|
615 | (void) nfs_catnap(PZERO, ret, "nfs_open"); |
---|
616 | } while (ret == NFSERR_DELAY); |
---|
617 | error = ret; |
---|
618 | } |
---|
619 | if ((rflags & NFSV4OPEN_LOCKTYPEPOSIX) || |
---|
620 | nfscl_assumeposixlocks) |
---|
621 | op->nfso_posixlock = 1; |
---|
622 | else |
---|
623 | op->nfso_posixlock = 0; |
---|
624 | |
---|
625 | /* |
---|
626 | * If the server is handing out delegations, but we didn't |
---|
627 | * get one because an OpenConfirm was required, try the |
---|
628 | * Open again, to get a delegation. This is a harmless no-op, |
---|
629 | * from a server's point of view. |
---|
630 | */ |
---|
631 | if (!reclaim && (rflags & NFSV4OPEN_RESULTCONFIRM) && |
---|
632 | (op->nfso_own->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG) |
---|
633 | && !error && dp == NULL && ndp == NULL && !recursed) { |
---|
634 | do { |
---|
635 | ret = nfsrpc_openrpc(nmp, vp, nfhp, fhlen, newfhp, |
---|
636 | newfhlen, mode, op, name, namelen, &ndp, 0, 0x0, |
---|
637 | cred, p, syscred, 1); |
---|
638 | if (ret == NFSERR_DELAY) |
---|
639 | (void) nfs_catnap(PZERO, ret, "nfs_open2"); |
---|
640 | } while (ret == NFSERR_DELAY); |
---|
641 | if (ret) { |
---|
642 | if (ndp != NULL) { |
---|
643 | free(ndp, M_NFSCLDELEG); |
---|
644 | ndp = NULL; |
---|
645 | } |
---|
646 | if (ret == NFSERR_STALECLIENTID || |
---|
647 | ret == NFSERR_STALEDONTRECOVER || |
---|
648 | ret == NFSERR_BADSESSION) |
---|
649 | error = ret; |
---|
650 | } |
---|
651 | } |
---|
652 | } |
---|
653 | if (nd->nd_repstat != 0 && error == 0) |
---|
654 | error = nd->nd_repstat; |
---|
655 | if (error == NFSERR_STALECLIENTID) |
---|
656 | nfscl_initiate_recovery(op->nfso_own->nfsow_clp); |
---|
657 | nfsmout: |
---|
658 | if (!error) |
---|
659 | *dpp = ndp; |
---|
660 | else if (ndp != NULL) |
---|
661 | free(ndp, M_NFSCLDELEG); |
---|
662 | mbuf_freem(nd->nd_mrep); |
---|
663 | return (error); |
---|
664 | } |
---|
665 | |
---|
666 | /* |
---|
667 | * open downgrade rpc |
---|
668 | */ |
---|
669 | APPLESTATIC int |
---|
670 | nfsrpc_opendowngrade(vnode_t vp, u_int32_t mode, struct nfsclopen *op, |
---|
671 | struct ucred *cred, NFSPROC_T *p) |
---|
672 | { |
---|
673 | u_int32_t *tl; |
---|
674 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
675 | int error; |
---|
676 | |
---|
677 | NFSCL_REQSTART(nd, NFSPROC_OPENDOWNGRADE, vp); |
---|
678 | NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 3 * NFSX_UNSIGNED); |
---|
679 | if (NFSHASNFSV4N(VFSTONFS(vnode_mount(vp)))) |
---|
680 | *tl++ = 0; |
---|
681 | else |
---|
682 | *tl++ = op->nfso_stateid.seqid; |
---|
683 | *tl++ = op->nfso_stateid.other[0]; |
---|
684 | *tl++ = op->nfso_stateid.other[1]; |
---|
685 | *tl++ = op->nfso_stateid.other[2]; |
---|
686 | *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); |
---|
687 | *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH); |
---|
688 | *tl = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH); |
---|
689 | error = nfscl_request(nd, vp, p, cred, NULL); |
---|
690 | if (error) |
---|
691 | return (error); |
---|
692 | NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); |
---|
693 | if (!nd->nd_repstat) { |
---|
694 | NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); |
---|
695 | op->nfso_stateid.seqid = *tl++; |
---|
696 | op->nfso_stateid.other[0] = *tl++; |
---|
697 | op->nfso_stateid.other[1] = *tl++; |
---|
698 | op->nfso_stateid.other[2] = *tl; |
---|
699 | } |
---|
700 | if (nd->nd_repstat && error == 0) |
---|
701 | error = nd->nd_repstat; |
---|
702 | if (error == NFSERR_STALESTATEID) |
---|
703 | nfscl_initiate_recovery(op->nfso_own->nfsow_clp); |
---|
704 | nfsmout: |
---|
705 | mbuf_freem(nd->nd_mrep); |
---|
706 | return (error); |
---|
707 | } |
---|
708 | |
---|
709 | /* |
---|
710 | * V4 Close operation. |
---|
711 | */ |
---|
712 | APPLESTATIC int |
---|
713 | nfsrpc_close(vnode_t vp, int doclose, NFSPROC_T *p) |
---|
714 | { |
---|
715 | struct nfsclclient *clp; |
---|
716 | int error; |
---|
717 | |
---|
718 | if (vnode_vtype(vp) != VREG) |
---|
719 | return (0); |
---|
720 | if (doclose) |
---|
721 | error = nfscl_doclose(vp, &clp, p); |
---|
722 | else |
---|
723 | error = nfscl_getclose(vp, &clp); |
---|
724 | if (error) |
---|
725 | return (error); |
---|
726 | |
---|
727 | nfscl_clientrelease(clp); |
---|
728 | return (0); |
---|
729 | } |
---|
730 | |
---|
731 | /* |
---|
732 | * Close the open. |
---|
733 | */ |
---|
734 | APPLESTATIC void |
---|
735 | nfsrpc_doclose(struct nfsmount *nmp, struct nfsclopen *op, NFSPROC_T *p) |
---|
736 | { |
---|
737 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
738 | struct nfscllockowner *lp, *nlp; |
---|
739 | struct nfscllock *lop, *nlop; |
---|
740 | struct ucred *tcred; |
---|
741 | u_int64_t off = 0, len = 0; |
---|
742 | u_int32_t type = NFSV4LOCKT_READ; |
---|
743 | int error, do_unlock, trycnt; |
---|
744 | |
---|
745 | tcred = newnfs_getcred(); |
---|
746 | newnfs_copycred(&op->nfso_cred, tcred); |
---|
747 | /* |
---|
748 | * (Theoretically this could be done in the same |
---|
749 | * compound as the close, but having multiple |
---|
750 | * sequenced Ops in the same compound might be |
---|
751 | * too scary for some servers.) |
---|
752 | */ |
---|
753 | if (op->nfso_posixlock) { |
---|
754 | off = 0; |
---|
755 | len = NFS64BITSSET; |
---|
756 | type = NFSV4LOCKT_READ; |
---|
757 | } |
---|
758 | |
---|
759 | /* |
---|
760 | * Since this function is only called from VOP_INACTIVE(), no |
---|
761 | * other thread will be manipulating this Open. As such, the |
---|
762 | * lock lists are not being changed by other threads, so it should |
---|
763 | * be safe to do this without locking. |
---|
764 | */ |
---|
765 | LIST_FOREACH(lp, &op->nfso_lock, nfsl_list) { |
---|
766 | do_unlock = 1; |
---|
767 | LIST_FOREACH_SAFE(lop, &lp->nfsl_lock, nfslo_list, nlop) { |
---|
768 | if (op->nfso_posixlock == 0) { |
---|
769 | off = lop->nfslo_first; |
---|
770 | len = lop->nfslo_end - lop->nfslo_first; |
---|
771 | if (lop->nfslo_type == F_WRLCK) |
---|
772 | type = NFSV4LOCKT_WRITE; |
---|
773 | else |
---|
774 | type = NFSV4LOCKT_READ; |
---|
775 | } |
---|
776 | if (do_unlock) { |
---|
777 | trycnt = 0; |
---|
778 | do { |
---|
779 | error = nfsrpc_locku(nd, nmp, lp, off, |
---|
780 | len, type, tcred, p, 0); |
---|
781 | if ((nd->nd_repstat == NFSERR_GRACE || |
---|
782 | nd->nd_repstat == NFSERR_DELAY) && |
---|
783 | error == 0) |
---|
784 | (void) nfs_catnap(PZERO, |
---|
785 | (int)nd->nd_repstat, |
---|
786 | "nfs_close"); |
---|
787 | } while ((nd->nd_repstat == NFSERR_GRACE || |
---|
788 | nd->nd_repstat == NFSERR_DELAY) && |
---|
789 | error == 0 && trycnt++ < 5); |
---|
790 | if (op->nfso_posixlock) |
---|
791 | do_unlock = 0; |
---|
792 | } |
---|
793 | nfscl_freelock(lop, 0); |
---|
794 | } |
---|
795 | /* |
---|
796 | * Do a ReleaseLockOwner. |
---|
797 | * The lock owner name nfsl_owner may be used by other opens for |
---|
798 | * other files but the lock_owner4 name that nfsrpc_rellockown() |
---|
799 | * puts on the wire has the file handle for this file appended |
---|
800 | * to it, so it can be done now. |
---|
801 | */ |
---|
802 | (void)nfsrpc_rellockown(nmp, lp, lp->nfsl_open->nfso_fh, |
---|
803 | lp->nfsl_open->nfso_fhlen, tcred, p); |
---|
804 | } |
---|
805 | |
---|
806 | /* |
---|
807 | * There could be other Opens for different files on the same |
---|
808 | * OpenOwner, so locking is required. |
---|
809 | */ |
---|
810 | NFSLOCKCLSTATE(); |
---|
811 | nfscl_lockexcl(&op->nfso_own->nfsow_rwlock, NFSCLSTATEMUTEXPTR); |
---|
812 | NFSUNLOCKCLSTATE(); |
---|
813 | do { |
---|
814 | error = nfscl_tryclose(op, tcred, nmp, p); |
---|
815 | if (error == NFSERR_GRACE) |
---|
816 | (void) nfs_catnap(PZERO, error, "nfs_close"); |
---|
817 | } while (error == NFSERR_GRACE); |
---|
818 | NFSLOCKCLSTATE(); |
---|
819 | nfscl_lockunlock(&op->nfso_own->nfsow_rwlock); |
---|
820 | |
---|
821 | LIST_FOREACH_SAFE(lp, &op->nfso_lock, nfsl_list, nlp) |
---|
822 | nfscl_freelockowner(lp, 0); |
---|
823 | nfscl_freeopen(op, 0); |
---|
824 | NFSUNLOCKCLSTATE(); |
---|
825 | NFSFREECRED(tcred); |
---|
826 | } |
---|
827 | |
---|
828 | /* |
---|
829 | * The actual Close RPC. |
---|
830 | */ |
---|
831 | APPLESTATIC int |
---|
832 | nfsrpc_closerpc(struct nfsrv_descript *nd, struct nfsmount *nmp, |
---|
833 | struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p, |
---|
834 | int syscred) |
---|
835 | { |
---|
836 | u_int32_t *tl; |
---|
837 | int error; |
---|
838 | |
---|
839 | nfscl_reqstart(nd, NFSPROC_CLOSE, nmp, op->nfso_fh, |
---|
840 | op->nfso_fhlen, NULL, NULL, 0, 0); |
---|
841 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID); |
---|
842 | *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); |
---|
843 | if (NFSHASNFSV4N(nmp)) |
---|
844 | *tl++ = 0; |
---|
845 | else |
---|
846 | *tl++ = op->nfso_stateid.seqid; |
---|
847 | *tl++ = op->nfso_stateid.other[0]; |
---|
848 | *tl++ = op->nfso_stateid.other[1]; |
---|
849 | *tl = op->nfso_stateid.other[2]; |
---|
850 | if (syscred) |
---|
851 | nd->nd_flag |= ND_USEGSSNAME; |
---|
852 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, |
---|
853 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
854 | if (error) |
---|
855 | return (error); |
---|
856 | NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); |
---|
857 | if (nd->nd_repstat == 0) |
---|
858 | NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); |
---|
859 | error = nd->nd_repstat; |
---|
860 | if (error == NFSERR_STALESTATEID) |
---|
861 | nfscl_initiate_recovery(op->nfso_own->nfsow_clp); |
---|
862 | nfsmout: |
---|
863 | mbuf_freem(nd->nd_mrep); |
---|
864 | return (error); |
---|
865 | } |
---|
866 | |
---|
867 | /* |
---|
868 | * V4 Open Confirm RPC. |
---|
869 | */ |
---|
870 | APPLESTATIC int |
---|
871 | nfsrpc_openconfirm(vnode_t vp, u_int8_t *nfhp, int fhlen, |
---|
872 | struct nfsclopen *op, struct ucred *cred, NFSPROC_T *p) |
---|
873 | { |
---|
874 | u_int32_t *tl; |
---|
875 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
876 | struct nfsmount *nmp; |
---|
877 | int error; |
---|
878 | |
---|
879 | nmp = VFSTONFS(vnode_mount(vp)); |
---|
880 | if (NFSHASNFSV4N(nmp)) |
---|
881 | return (0); /* No confirmation for NFSv4.1. */ |
---|
882 | nfscl_reqstart(nd, NFSPROC_OPENCONFIRM, nmp, nfhp, fhlen, NULL, NULL, |
---|
883 | 0, 0); |
---|
884 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_STATEID); |
---|
885 | *tl++ = op->nfso_stateid.seqid; |
---|
886 | *tl++ = op->nfso_stateid.other[0]; |
---|
887 | *tl++ = op->nfso_stateid.other[1]; |
---|
888 | *tl++ = op->nfso_stateid.other[2]; |
---|
889 | *tl = txdr_unsigned(op->nfso_own->nfsow_seqid); |
---|
890 | error = nfscl_request(nd, vp, p, cred, NULL); |
---|
891 | if (error) |
---|
892 | return (error); |
---|
893 | NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); |
---|
894 | if (!nd->nd_repstat) { |
---|
895 | NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); |
---|
896 | op->nfso_stateid.seqid = *tl++; |
---|
897 | op->nfso_stateid.other[0] = *tl++; |
---|
898 | op->nfso_stateid.other[1] = *tl++; |
---|
899 | op->nfso_stateid.other[2] = *tl; |
---|
900 | } |
---|
901 | error = nd->nd_repstat; |
---|
902 | if (error == NFSERR_STALESTATEID) |
---|
903 | nfscl_initiate_recovery(op->nfso_own->nfsow_clp); |
---|
904 | nfsmout: |
---|
905 | mbuf_freem(nd->nd_mrep); |
---|
906 | return (error); |
---|
907 | } |
---|
908 | |
---|
909 | /* |
---|
910 | * Do the setclientid and setclientid confirm RPCs. Called from nfs_statfs() |
---|
911 | * when a mount has just occurred and when the server replies NFSERR_EXPIRED. |
---|
912 | */ |
---|
913 | APPLESTATIC int |
---|
914 | nfsrpc_setclient(struct nfsmount *nmp, struct nfsclclient *clp, int reclaim, |
---|
915 | struct ucred *cred, NFSPROC_T *p) |
---|
916 | { |
---|
917 | u_int32_t *tl; |
---|
918 | struct nfsrv_descript nfsd; |
---|
919 | struct nfsrv_descript *nd = &nfsd; |
---|
920 | nfsattrbit_t attrbits; |
---|
921 | u_int8_t *cp = NULL, *cp2, addr[INET6_ADDRSTRLEN + 9]; |
---|
922 | u_short port; |
---|
923 | int error, isinet6 = 0, callblen; |
---|
924 | nfsquad_t confirm; |
---|
925 | u_int32_t lease; |
---|
926 | static u_int32_t rev = 0; |
---|
927 | struct nfsclds *dsp; |
---|
928 | struct in6_addr a6; |
---|
929 | struct nfsclsession *tsep; |
---|
930 | |
---|
931 | if (nfsboottime.tv_sec == 0) |
---|
932 | NFSSETBOOTTIME(nfsboottime); |
---|
933 | clp->nfsc_rev = rev++; |
---|
934 | if (NFSHASNFSV4N(nmp)) { |
---|
935 | /* |
---|
936 | * Either there was no previous session or the |
---|
937 | * previous session has failed, so... |
---|
938 | * do an ExchangeID followed by the CreateSession. |
---|
939 | */ |
---|
940 | error = nfsrpc_exchangeid(nmp, clp, &nmp->nm_sockreq, |
---|
941 | NFSV4EXCH_USEPNFSMDS | NFSV4EXCH_USENONPNFS, &dsp, cred, p); |
---|
942 | NFSCL_DEBUG(1, "aft exch=%d\n", error); |
---|
943 | if (error == 0) |
---|
944 | error = nfsrpc_createsession(nmp, &dsp->nfsclds_sess, |
---|
945 | &nmp->nm_sockreq, |
---|
946 | dsp->nfsclds_sess.nfsess_sequenceid, 1, cred, p); |
---|
947 | if (error == 0) { |
---|
948 | NFSLOCKMNT(nmp); |
---|
949 | /* |
---|
950 | * The old sessions cannot be safely free'd |
---|
951 | * here, since they may still be used by |
---|
952 | * in-progress RPCs. |
---|
953 | */ |
---|
954 | tsep = NULL; |
---|
955 | if (TAILQ_FIRST(&nmp->nm_sess) != NULL) |
---|
956 | tsep = NFSMNT_MDSSESSION(nmp); |
---|
957 | TAILQ_INSERT_HEAD(&nmp->nm_sess, dsp, |
---|
958 | nfsclds_list); |
---|
959 | /* |
---|
960 | * Wake up RPCs waiting for a slot on the |
---|
961 | * old session. These will then fail with |
---|
962 | * NFSERR_BADSESSION and be retried with the |
---|
963 | * new session by nfsv4_setsequence(). |
---|
964 | * Also wakeup() processes waiting for the |
---|
965 | * new session. |
---|
966 | */ |
---|
967 | if (tsep != NULL) |
---|
968 | wakeup(&tsep->nfsess_slots); |
---|
969 | wakeup(&nmp->nm_sess); |
---|
970 | NFSUNLOCKMNT(nmp); |
---|
971 | } else |
---|
972 | nfscl_freenfsclds(dsp); |
---|
973 | NFSCL_DEBUG(1, "aft createsess=%d\n", error); |
---|
974 | if (error == 0 && reclaim == 0) { |
---|
975 | error = nfsrpc_reclaimcomplete(nmp, cred, p); |
---|
976 | NFSCL_DEBUG(1, "aft reclaimcomp=%d\n", error); |
---|
977 | if (error == NFSERR_COMPLETEALREADY || |
---|
978 | error == NFSERR_NOTSUPP) |
---|
979 | /* Ignore this error. */ |
---|
980 | error = 0; |
---|
981 | } |
---|
982 | return (error); |
---|
983 | } |
---|
984 | |
---|
985 | /* |
---|
986 | * Allocate a single session structure for NFSv4.0, because some of |
---|
987 | * the fields are used by NFSv4.0 although it doesn't do a session. |
---|
988 | */ |
---|
989 | dsp = malloc(sizeof(struct nfsclds), M_NFSCLDS, M_WAITOK | M_ZERO); |
---|
990 | mtx_init(&dsp->nfsclds_mtx, "nfsds", NULL, MTX_DEF); |
---|
991 | mtx_init(&dsp->nfsclds_sess.nfsess_mtx, "nfssession", NULL, MTX_DEF); |
---|
992 | NFSLOCKMNT(nmp); |
---|
993 | TAILQ_INSERT_HEAD(&nmp->nm_sess, dsp, nfsclds_list); |
---|
994 | tsep = NFSMNT_MDSSESSION(nmp); |
---|
995 | NFSUNLOCKMNT(nmp); |
---|
996 | |
---|
997 | nfscl_reqstart(nd, NFSPROC_SETCLIENTID, nmp, NULL, 0, NULL, NULL, 0, 0); |
---|
998 | NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
999 | *tl++ = txdr_unsigned(nfsboottime.tv_sec); |
---|
1000 | *tl = txdr_unsigned(clp->nfsc_rev); |
---|
1001 | (void) nfsm_strtom(nd, clp->nfsc_id, clp->nfsc_idlen); |
---|
1002 | |
---|
1003 | /* |
---|
1004 | * set up the callback address |
---|
1005 | */ |
---|
1006 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
1007 | *tl = txdr_unsigned(NFS_CALLBCKPROG); |
---|
1008 | callblen = strlen(nfsv4_callbackaddr); |
---|
1009 | if (callblen == 0) |
---|
1010 | cp = nfscl_getmyip(nmp, &a6, &isinet6); |
---|
1011 | if (nfscl_enablecallb && nfs_numnfscbd > 0 && |
---|
1012 | (callblen > 0 || cp != NULL)) { |
---|
1013 | port = htons(nfsv4_cbport); |
---|
1014 | cp2 = (u_int8_t *)&port; |
---|
1015 | #ifdef INET6 |
---|
1016 | if ((callblen > 0 && |
---|
1017 | strchr(nfsv4_callbackaddr, ':')) || isinet6) { |
---|
1018 | char ip6buf[INET6_ADDRSTRLEN], *ip6add; |
---|
1019 | |
---|
1020 | (void) nfsm_strtom(nd, "tcp6", 4); |
---|
1021 | if (callblen == 0) { |
---|
1022 | ip6_sprintf(ip6buf, (struct in6_addr *)cp); |
---|
1023 | ip6add = ip6buf; |
---|
1024 | } else { |
---|
1025 | ip6add = nfsv4_callbackaddr; |
---|
1026 | } |
---|
1027 | snprintf(addr, INET6_ADDRSTRLEN + 9, "%s.%d.%d", |
---|
1028 | ip6add, cp2[0], cp2[1]); |
---|
1029 | } else |
---|
1030 | #endif |
---|
1031 | { |
---|
1032 | (void) nfsm_strtom(nd, "tcp", 3); |
---|
1033 | if (callblen == 0) |
---|
1034 | snprintf(addr, INET6_ADDRSTRLEN + 9, |
---|
1035 | "%d.%d.%d.%d.%d.%d", cp[0], cp[1], |
---|
1036 | cp[2], cp[3], cp2[0], cp2[1]); |
---|
1037 | else |
---|
1038 | snprintf(addr, INET6_ADDRSTRLEN + 9, |
---|
1039 | "%s.%d.%d", nfsv4_callbackaddr, |
---|
1040 | cp2[0], cp2[1]); |
---|
1041 | } |
---|
1042 | (void) nfsm_strtom(nd, addr, strlen(addr)); |
---|
1043 | } else { |
---|
1044 | (void) nfsm_strtom(nd, "tcp", 3); |
---|
1045 | (void) nfsm_strtom(nd, "0.0.0.0.0.0", 11); |
---|
1046 | } |
---|
1047 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
1048 | *tl = txdr_unsigned(clp->nfsc_cbident); |
---|
1049 | nd->nd_flag |= ND_USEGSSNAME; |
---|
1050 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, |
---|
1051 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
1052 | if (error) |
---|
1053 | return (error); |
---|
1054 | if (nd->nd_repstat == 0) { |
---|
1055 | NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED); |
---|
1056 | tsep->nfsess_clientid.lval[0] = *tl++; |
---|
1057 | tsep->nfsess_clientid.lval[1] = *tl++; |
---|
1058 | confirm.lval[0] = *tl++; |
---|
1059 | confirm.lval[1] = *tl; |
---|
1060 | mbuf_freem(nd->nd_mrep); |
---|
1061 | nd->nd_mrep = NULL; |
---|
1062 | |
---|
1063 | /* |
---|
1064 | * and confirm it. |
---|
1065 | */ |
---|
1066 | nfscl_reqstart(nd, NFSPROC_SETCLIENTIDCFRM, nmp, NULL, 0, NULL, |
---|
1067 | NULL, 0, 0); |
---|
1068 | NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED); |
---|
1069 | *tl++ = tsep->nfsess_clientid.lval[0]; |
---|
1070 | *tl++ = tsep->nfsess_clientid.lval[1]; |
---|
1071 | *tl++ = confirm.lval[0]; |
---|
1072 | *tl = confirm.lval[1]; |
---|
1073 | nd->nd_flag |= ND_USEGSSNAME; |
---|
1074 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, |
---|
1075 | cred, NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
1076 | if (error) |
---|
1077 | return (error); |
---|
1078 | mbuf_freem(nd->nd_mrep); |
---|
1079 | nd->nd_mrep = NULL; |
---|
1080 | if (nd->nd_repstat == 0) { |
---|
1081 | nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, nmp->nm_fh, |
---|
1082 | nmp->nm_fhsize, NULL, NULL, 0, 0); |
---|
1083 | NFSZERO_ATTRBIT(&attrbits); |
---|
1084 | NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_LEASETIME); |
---|
1085 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
1086 | nd->nd_flag |= ND_USEGSSNAME; |
---|
1087 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, |
---|
1088 | cred, NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
1089 | if (error) |
---|
1090 | return (error); |
---|
1091 | if (nd->nd_repstat == 0) { |
---|
1092 | error = nfsv4_loadattr(nd, NULL, NULL, NULL, NULL, 0, NULL, |
---|
1093 | NULL, NULL, NULL, NULL, 0, NULL, &lease, NULL, p, cred); |
---|
1094 | if (error) |
---|
1095 | goto nfsmout; |
---|
1096 | clp->nfsc_renew = NFSCL_RENEW(lease); |
---|
1097 | clp->nfsc_expire = NFSD_MONOSEC + clp->nfsc_renew; |
---|
1098 | clp->nfsc_clientidrev++; |
---|
1099 | if (clp->nfsc_clientidrev == 0) |
---|
1100 | clp->nfsc_clientidrev++; |
---|
1101 | } |
---|
1102 | } |
---|
1103 | } |
---|
1104 | error = nd->nd_repstat; |
---|
1105 | nfsmout: |
---|
1106 | mbuf_freem(nd->nd_mrep); |
---|
1107 | return (error); |
---|
1108 | } |
---|
1109 | |
---|
1110 | /* |
---|
1111 | * nfs getattr call. |
---|
1112 | */ |
---|
1113 | APPLESTATIC int |
---|
1114 | nfsrpc_getattr(vnode_t vp, struct ucred *cred, NFSPROC_T *p, |
---|
1115 | struct nfsvattr *nap, void *stuff) |
---|
1116 | { |
---|
1117 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
1118 | int error; |
---|
1119 | nfsattrbit_t attrbits; |
---|
1120 | |
---|
1121 | NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); |
---|
1122 | if (nd->nd_flag & ND_NFSV4) { |
---|
1123 | NFSGETATTR_ATTRBIT(&attrbits); |
---|
1124 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
1125 | } |
---|
1126 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
1127 | if (error) |
---|
1128 | return (error); |
---|
1129 | if (!nd->nd_repstat) |
---|
1130 | error = nfsm_loadattr(nd, nap); |
---|
1131 | else |
---|
1132 | error = nd->nd_repstat; |
---|
1133 | mbuf_freem(nd->nd_mrep); |
---|
1134 | return (error); |
---|
1135 | } |
---|
1136 | |
---|
1137 | /* |
---|
1138 | * nfs getattr call with non-vnode arguemnts. |
---|
1139 | */ |
---|
1140 | APPLESTATIC int |
---|
1141 | nfsrpc_getattrnovp(struct nfsmount *nmp, u_int8_t *fhp, int fhlen, int syscred, |
---|
1142 | struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, u_int64_t *xidp, |
---|
1143 | uint32_t *leasep) |
---|
1144 | { |
---|
1145 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
1146 | int error, vers = NFS_VER2; |
---|
1147 | nfsattrbit_t attrbits; |
---|
1148 | |
---|
1149 | nfscl_reqstart(nd, NFSPROC_GETATTR, nmp, fhp, fhlen, NULL, NULL, 0, 0); |
---|
1150 | if (nd->nd_flag & ND_NFSV4) { |
---|
1151 | vers = NFS_VER4; |
---|
1152 | NFSGETATTR_ATTRBIT(&attrbits); |
---|
1153 | NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_LEASETIME); |
---|
1154 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
1155 | } else if (nd->nd_flag & ND_NFSV3) { |
---|
1156 | vers = NFS_VER3; |
---|
1157 | } |
---|
1158 | if (syscred) |
---|
1159 | nd->nd_flag |= ND_USEGSSNAME; |
---|
1160 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, |
---|
1161 | NFS_PROG, vers, NULL, 1, xidp, NULL); |
---|
1162 | if (error) |
---|
1163 | return (error); |
---|
1164 | if (nd->nd_repstat == 0) { |
---|
1165 | if ((nd->nd_flag & ND_NFSV4) != 0) |
---|
1166 | error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, |
---|
1167 | NULL, NULL, NULL, NULL, NULL, 0, NULL, leasep, NULL, |
---|
1168 | NULL, NULL); |
---|
1169 | else |
---|
1170 | error = nfsm_loadattr(nd, nap); |
---|
1171 | } else |
---|
1172 | error = nd->nd_repstat; |
---|
1173 | mbuf_freem(nd->nd_mrep); |
---|
1174 | return (error); |
---|
1175 | } |
---|
1176 | |
---|
1177 | /* |
---|
1178 | * Do an nfs setattr operation. |
---|
1179 | */ |
---|
1180 | APPLESTATIC int |
---|
1181 | nfsrpc_setattr(vnode_t vp, struct vattr *vap, NFSACL_T *aclp, |
---|
1182 | struct ucred *cred, NFSPROC_T *p, struct nfsvattr *rnap, int *attrflagp, |
---|
1183 | void *stuff) |
---|
1184 | { |
---|
1185 | int error, expireret = 0, openerr, retrycnt; |
---|
1186 | u_int32_t clidrev = 0, mode; |
---|
1187 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
1188 | struct nfsfh *nfhp; |
---|
1189 | nfsv4stateid_t stateid; |
---|
1190 | void *lckp; |
---|
1191 | |
---|
1192 | if (nmp->nm_clp != NULL) |
---|
1193 | clidrev = nmp->nm_clp->nfsc_clientidrev; |
---|
1194 | if (vap != NULL && NFSATTRISSET(u_quad_t, vap, va_size)) |
---|
1195 | mode = NFSV4OPEN_ACCESSWRITE; |
---|
1196 | else |
---|
1197 | mode = NFSV4OPEN_ACCESSREAD; |
---|
1198 | retrycnt = 0; |
---|
1199 | do { |
---|
1200 | lckp = NULL; |
---|
1201 | openerr = 1; |
---|
1202 | if (NFSHASNFSV4(nmp)) { |
---|
1203 | nfhp = VTONFS(vp)->n_fhp; |
---|
1204 | error = nfscl_getstateid(vp, nfhp->nfh_fh, |
---|
1205 | nfhp->nfh_len, mode, 0, cred, p, &stateid, &lckp); |
---|
1206 | if (error && vnode_vtype(vp) == VREG && |
---|
1207 | (mode == NFSV4OPEN_ACCESSWRITE || |
---|
1208 | nfstest_openallsetattr)) { |
---|
1209 | /* |
---|
1210 | * No Open stateid, so try and open the file |
---|
1211 | * now. |
---|
1212 | */ |
---|
1213 | if (mode == NFSV4OPEN_ACCESSWRITE) |
---|
1214 | openerr = nfsrpc_open(vp, FWRITE, cred, |
---|
1215 | p); |
---|
1216 | else |
---|
1217 | openerr = nfsrpc_open(vp, FREAD, cred, |
---|
1218 | p); |
---|
1219 | if (!openerr) |
---|
1220 | (void) nfscl_getstateid(vp, |
---|
1221 | nfhp->nfh_fh, nfhp->nfh_len, |
---|
1222 | mode, 0, cred, p, &stateid, &lckp); |
---|
1223 | } |
---|
1224 | } |
---|
1225 | if (vap != NULL) |
---|
1226 | error = nfsrpc_setattrrpc(vp, vap, &stateid, cred, p, |
---|
1227 | rnap, attrflagp, stuff); |
---|
1228 | else |
---|
1229 | error = nfsrpc_setaclrpc(vp, cred, p, aclp, &stateid, |
---|
1230 | stuff); |
---|
1231 | if (error == NFSERR_OPENMODE && mode == NFSV4OPEN_ACCESSREAD) { |
---|
1232 | NFSLOCKMNT(nmp); |
---|
1233 | nmp->nm_state |= NFSSTA_OPENMODE; |
---|
1234 | NFSUNLOCKMNT(nmp); |
---|
1235 | } |
---|
1236 | if (error == NFSERR_STALESTATEID) |
---|
1237 | nfscl_initiate_recovery(nmp->nm_clp); |
---|
1238 | if (lckp != NULL) |
---|
1239 | nfscl_lockderef(lckp); |
---|
1240 | if (!openerr) |
---|
1241 | (void) nfsrpc_close(vp, 0, p); |
---|
1242 | if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || |
---|
1243 | error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || |
---|
1244 | error == NFSERR_OLDSTATEID || error == NFSERR_BADSESSION) { |
---|
1245 | (void) nfs_catnap(PZERO, error, "nfs_setattr"); |
---|
1246 | } else if ((error == NFSERR_EXPIRED || |
---|
1247 | error == NFSERR_BADSTATEID) && clidrev != 0) { |
---|
1248 | expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); |
---|
1249 | } |
---|
1250 | retrycnt++; |
---|
1251 | } while (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || |
---|
1252 | error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || |
---|
1253 | error == NFSERR_BADSESSION || |
---|
1254 | (error == NFSERR_OLDSTATEID && retrycnt < 20) || |
---|
1255 | ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && |
---|
1256 | expireret == 0 && clidrev != 0 && retrycnt < 4) || |
---|
1257 | (error == NFSERR_OPENMODE && mode == NFSV4OPEN_ACCESSREAD && |
---|
1258 | retrycnt < 4)); |
---|
1259 | if (error && retrycnt >= 4) |
---|
1260 | error = EIO; |
---|
1261 | return (error); |
---|
1262 | } |
---|
1263 | |
---|
1264 | static int |
---|
1265 | nfsrpc_setattrrpc(vnode_t vp, struct vattr *vap, |
---|
1266 | nfsv4stateid_t *stateidp, struct ucred *cred, NFSPROC_T *p, |
---|
1267 | struct nfsvattr *rnap, int *attrflagp, void *stuff) |
---|
1268 | { |
---|
1269 | u_int32_t *tl; |
---|
1270 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
1271 | int error; |
---|
1272 | nfsattrbit_t attrbits; |
---|
1273 | |
---|
1274 | *attrflagp = 0; |
---|
1275 | NFSCL_REQSTART(nd, NFSPROC_SETATTR, vp); |
---|
1276 | if (nd->nd_flag & ND_NFSV4) |
---|
1277 | nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); |
---|
1278 | vap->va_type = vnode_vtype(vp); |
---|
1279 | nfscl_fillsattr(nd, vap, vp, NFSSATTR_FULL, 0); |
---|
1280 | if (nd->nd_flag & ND_NFSV3) { |
---|
1281 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
1282 | *tl = newnfs_false; |
---|
1283 | } else if (nd->nd_flag & ND_NFSV4) { |
---|
1284 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
1285 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
1286 | NFSGETATTR_ATTRBIT(&attrbits); |
---|
1287 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
1288 | } |
---|
1289 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
1290 | if (error) |
---|
1291 | return (error); |
---|
1292 | if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) |
---|
1293 | error = nfscl_wcc_data(nd, vp, rnap, attrflagp, NULL, stuff); |
---|
1294 | if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4 && !error) |
---|
1295 | error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); |
---|
1296 | if (!(nd->nd_flag & ND_NFSV3) && !nd->nd_repstat && !error) |
---|
1297 | error = nfscl_postop_attr(nd, rnap, attrflagp, stuff); |
---|
1298 | mbuf_freem(nd->nd_mrep); |
---|
1299 | if (nd->nd_repstat && !error) |
---|
1300 | error = nd->nd_repstat; |
---|
1301 | return (error); |
---|
1302 | } |
---|
1303 | |
---|
1304 | /* |
---|
1305 | * nfs lookup rpc |
---|
1306 | */ |
---|
1307 | APPLESTATIC int |
---|
1308 | nfsrpc_lookup(vnode_t dvp, char *name, int len, struct ucred *cred, |
---|
1309 | NFSPROC_T *p, struct nfsvattr *dnap, struct nfsvattr *nap, |
---|
1310 | struct nfsfh **nfhpp, int *attrflagp, int *dattrflagp, void *stuff) |
---|
1311 | { |
---|
1312 | u_int32_t *tl; |
---|
1313 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
1314 | struct nfsmount *nmp; |
---|
1315 | struct nfsnode *np; |
---|
1316 | struct nfsfh *nfhp; |
---|
1317 | nfsattrbit_t attrbits; |
---|
1318 | int error = 0, lookupp = 0; |
---|
1319 | |
---|
1320 | *attrflagp = 0; |
---|
1321 | *dattrflagp = 0; |
---|
1322 | if (vnode_vtype(dvp) != VDIR) |
---|
1323 | return (ENOTDIR); |
---|
1324 | nmp = VFSTONFS(vnode_mount(dvp)); |
---|
1325 | if (len > NFS_MAXNAMLEN) |
---|
1326 | return (ENAMETOOLONG); |
---|
1327 | if (NFSHASNFSV4(nmp) && len == 1 && |
---|
1328 | name[0] == '.') { |
---|
1329 | /* |
---|
1330 | * Just return the current dir's fh. |
---|
1331 | */ |
---|
1332 | np = VTONFS(dvp); |
---|
1333 | nfhp = malloc(sizeof (struct nfsfh) + |
---|
1334 | np->n_fhp->nfh_len, M_NFSFH, M_WAITOK); |
---|
1335 | nfhp->nfh_len = np->n_fhp->nfh_len; |
---|
1336 | NFSBCOPY(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len); |
---|
1337 | *nfhpp = nfhp; |
---|
1338 | return (0); |
---|
1339 | } |
---|
1340 | if (NFSHASNFSV4(nmp) && len == 2 && |
---|
1341 | name[0] == '.' && name[1] == '.') { |
---|
1342 | lookupp = 1; |
---|
1343 | NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, dvp); |
---|
1344 | } else { |
---|
1345 | NFSCL_REQSTART(nd, NFSPROC_LOOKUP, dvp); |
---|
1346 | (void) nfsm_strtom(nd, name, len); |
---|
1347 | } |
---|
1348 | if (nd->nd_flag & ND_NFSV4) { |
---|
1349 | NFSGETATTR_ATTRBIT(&attrbits); |
---|
1350 | NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
1351 | *tl++ = txdr_unsigned(NFSV4OP_GETFH); |
---|
1352 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
1353 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
1354 | } |
---|
1355 | error = nfscl_request(nd, dvp, p, cred, stuff); |
---|
1356 | if (error) |
---|
1357 | return (error); |
---|
1358 | if (nd->nd_repstat) { |
---|
1359 | /* |
---|
1360 | * When an NFSv4 Lookupp returns ENOENT, it means that |
---|
1361 | * the lookup is at the root of an fs, so return this dir. |
---|
1362 | */ |
---|
1363 | if (nd->nd_repstat == NFSERR_NOENT && lookupp) { |
---|
1364 | np = VTONFS(dvp); |
---|
1365 | nfhp = malloc(sizeof (struct nfsfh) + |
---|
1366 | np->n_fhp->nfh_len, M_NFSFH, M_WAITOK); |
---|
1367 | nfhp->nfh_len = np->n_fhp->nfh_len; |
---|
1368 | NFSBCOPY(np->n_fhp->nfh_fh, nfhp->nfh_fh, nfhp->nfh_len); |
---|
1369 | *nfhpp = nfhp; |
---|
1370 | mbuf_freem(nd->nd_mrep); |
---|
1371 | return (0); |
---|
1372 | } |
---|
1373 | if (nd->nd_flag & ND_NFSV3) |
---|
1374 | error = nfscl_postop_attr(nd, dnap, dattrflagp, stuff); |
---|
1375 | else if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == |
---|
1376 | ND_NFSV4) { |
---|
1377 | /* Load the directory attributes. */ |
---|
1378 | error = nfsm_loadattr(nd, dnap); |
---|
1379 | if (error == 0) |
---|
1380 | *dattrflagp = 1; |
---|
1381 | } |
---|
1382 | goto nfsmout; |
---|
1383 | } |
---|
1384 | if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { |
---|
1385 | /* Load the directory attributes. */ |
---|
1386 | error = nfsm_loadattr(nd, dnap); |
---|
1387 | if (error != 0) |
---|
1388 | goto nfsmout; |
---|
1389 | *dattrflagp = 1; |
---|
1390 | /* Skip over the Lookup and GetFH operation status values. */ |
---|
1391 | NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED); |
---|
1392 | } |
---|
1393 | error = nfsm_getfh(nd, nfhpp); |
---|
1394 | if (error) |
---|
1395 | goto nfsmout; |
---|
1396 | |
---|
1397 | error = nfscl_postop_attr(nd, nap, attrflagp, stuff); |
---|
1398 | if ((nd->nd_flag & ND_NFSV3) && !error) |
---|
1399 | error = nfscl_postop_attr(nd, dnap, dattrflagp, stuff); |
---|
1400 | nfsmout: |
---|
1401 | mbuf_freem(nd->nd_mrep); |
---|
1402 | if (!error && nd->nd_repstat) |
---|
1403 | error = nd->nd_repstat; |
---|
1404 | return (error); |
---|
1405 | } |
---|
1406 | |
---|
1407 | /* |
---|
1408 | * Do a readlink rpc. |
---|
1409 | */ |
---|
1410 | APPLESTATIC int |
---|
1411 | nfsrpc_readlink(vnode_t vp, struct uio *uiop, struct ucred *cred, |
---|
1412 | NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) |
---|
1413 | { |
---|
1414 | u_int32_t *tl; |
---|
1415 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
1416 | struct nfsnode *np = VTONFS(vp); |
---|
1417 | nfsattrbit_t attrbits; |
---|
1418 | int error, len, cangetattr = 1; |
---|
1419 | |
---|
1420 | *attrflagp = 0; |
---|
1421 | NFSCL_REQSTART(nd, NFSPROC_READLINK, vp); |
---|
1422 | if (nd->nd_flag & ND_NFSV4) { |
---|
1423 | /* |
---|
1424 | * And do a Getattr op. |
---|
1425 | */ |
---|
1426 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
1427 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
1428 | NFSGETATTR_ATTRBIT(&attrbits); |
---|
1429 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
1430 | } |
---|
1431 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
1432 | if (error) |
---|
1433 | return (error); |
---|
1434 | if (nd->nd_flag & ND_NFSV3) |
---|
1435 | error = nfscl_postop_attr(nd, nap, attrflagp, stuff); |
---|
1436 | if (!nd->nd_repstat && !error) { |
---|
1437 | NFSM_STRSIZ(len, NFS_MAXPATHLEN); |
---|
1438 | /* |
---|
1439 | * This seems weird to me, but must have been added to |
---|
1440 | * FreeBSD for some reason. The only thing I can think of |
---|
1441 | * is that there was/is some server that replies with |
---|
1442 | * more link data than it should? |
---|
1443 | */ |
---|
1444 | if (len == NFS_MAXPATHLEN) { |
---|
1445 | NFSLOCKNODE(np); |
---|
1446 | if (np->n_size > 0 && np->n_size < NFS_MAXPATHLEN) { |
---|
1447 | len = np->n_size; |
---|
1448 | cangetattr = 0; |
---|
1449 | } |
---|
1450 | NFSUNLOCKNODE(np); |
---|
1451 | } |
---|
1452 | error = nfsm_mbufuio(nd, uiop, len); |
---|
1453 | if ((nd->nd_flag & ND_NFSV4) && !error && cangetattr) |
---|
1454 | error = nfscl_postop_attr(nd, nap, attrflagp, stuff); |
---|
1455 | } |
---|
1456 | if (nd->nd_repstat && !error) |
---|
1457 | error = nd->nd_repstat; |
---|
1458 | nfsmout: |
---|
1459 | mbuf_freem(nd->nd_mrep); |
---|
1460 | return (error); |
---|
1461 | } |
---|
1462 | |
---|
1463 | /* |
---|
1464 | * Read operation. |
---|
1465 | */ |
---|
1466 | APPLESTATIC int |
---|
1467 | nfsrpc_read(vnode_t vp, struct uio *uiop, struct ucred *cred, |
---|
1468 | NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) |
---|
1469 | { |
---|
1470 | int error, expireret = 0, retrycnt; |
---|
1471 | u_int32_t clidrev = 0; |
---|
1472 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
1473 | struct nfsnode *np = VTONFS(vp); |
---|
1474 | struct ucred *newcred; |
---|
1475 | struct nfsfh *nfhp = NULL; |
---|
1476 | nfsv4stateid_t stateid; |
---|
1477 | void *lckp; |
---|
1478 | |
---|
1479 | if (nmp->nm_clp != NULL) |
---|
1480 | clidrev = nmp->nm_clp->nfsc_clientidrev; |
---|
1481 | newcred = cred; |
---|
1482 | if (NFSHASNFSV4(nmp)) { |
---|
1483 | nfhp = np->n_fhp; |
---|
1484 | newcred = NFSNEWCRED(cred); |
---|
1485 | } |
---|
1486 | retrycnt = 0; |
---|
1487 | do { |
---|
1488 | lckp = NULL; |
---|
1489 | if (NFSHASNFSV4(nmp)) |
---|
1490 | (void)nfscl_getstateid(vp, nfhp->nfh_fh, nfhp->nfh_len, |
---|
1491 | NFSV4OPEN_ACCESSREAD, 0, newcred, p, &stateid, |
---|
1492 | &lckp); |
---|
1493 | error = nfsrpc_readrpc(vp, uiop, newcred, &stateid, p, nap, |
---|
1494 | attrflagp, stuff); |
---|
1495 | if (error == NFSERR_OPENMODE) { |
---|
1496 | NFSLOCKMNT(nmp); |
---|
1497 | nmp->nm_state |= NFSSTA_OPENMODE; |
---|
1498 | NFSUNLOCKMNT(nmp); |
---|
1499 | } |
---|
1500 | if (error == NFSERR_STALESTATEID) |
---|
1501 | nfscl_initiate_recovery(nmp->nm_clp); |
---|
1502 | if (lckp != NULL) |
---|
1503 | nfscl_lockderef(lckp); |
---|
1504 | if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || |
---|
1505 | error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || |
---|
1506 | error == NFSERR_OLDSTATEID || error == NFSERR_BADSESSION) { |
---|
1507 | (void) nfs_catnap(PZERO, error, "nfs_read"); |
---|
1508 | } else if ((error == NFSERR_EXPIRED || |
---|
1509 | error == NFSERR_BADSTATEID) && clidrev != 0) { |
---|
1510 | expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); |
---|
1511 | } |
---|
1512 | retrycnt++; |
---|
1513 | } while (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || |
---|
1514 | error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || |
---|
1515 | error == NFSERR_BADSESSION || |
---|
1516 | (error == NFSERR_OLDSTATEID && retrycnt < 20) || |
---|
1517 | ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && |
---|
1518 | expireret == 0 && clidrev != 0 && retrycnt < 4) || |
---|
1519 | (error == NFSERR_OPENMODE && retrycnt < 4)); |
---|
1520 | if (error && retrycnt >= 4) |
---|
1521 | error = EIO; |
---|
1522 | if (NFSHASNFSV4(nmp)) |
---|
1523 | NFSFREECRED(newcred); |
---|
1524 | return (error); |
---|
1525 | } |
---|
1526 | |
---|
1527 | /* |
---|
1528 | * The actual read RPC. |
---|
1529 | */ |
---|
1530 | static int |
---|
1531 | nfsrpc_readrpc(vnode_t vp, struct uio *uiop, struct ucred *cred, |
---|
1532 | nfsv4stateid_t *stateidp, NFSPROC_T *p, struct nfsvattr *nap, |
---|
1533 | int *attrflagp, void *stuff) |
---|
1534 | { |
---|
1535 | u_int32_t *tl; |
---|
1536 | int error = 0, len, retlen, tsiz, eof = 0; |
---|
1537 | struct nfsrv_descript nfsd; |
---|
1538 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
1539 | struct nfsrv_descript *nd = &nfsd; |
---|
1540 | int rsize; |
---|
1541 | off_t tmp_off; |
---|
1542 | |
---|
1543 | *attrflagp = 0; |
---|
1544 | tsiz = uio_uio_resid(uiop); |
---|
1545 | tmp_off = uiop->uio_offset + tsiz; |
---|
1546 | NFSLOCKMNT(nmp); |
---|
1547 | if (tmp_off > nmp->nm_maxfilesize || tmp_off < uiop->uio_offset) { |
---|
1548 | NFSUNLOCKMNT(nmp); |
---|
1549 | return (EFBIG); |
---|
1550 | } |
---|
1551 | rsize = nmp->nm_rsize; |
---|
1552 | NFSUNLOCKMNT(nmp); |
---|
1553 | nd->nd_mrep = NULL; |
---|
1554 | while (tsiz > 0) { |
---|
1555 | *attrflagp = 0; |
---|
1556 | len = (tsiz > rsize) ? rsize : tsiz; |
---|
1557 | NFSCL_REQSTART(nd, NFSPROC_READ, vp); |
---|
1558 | if (nd->nd_flag & ND_NFSV4) |
---|
1559 | nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); |
---|
1560 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED * 3); |
---|
1561 | if (nd->nd_flag & ND_NFSV2) { |
---|
1562 | *tl++ = txdr_unsigned(uiop->uio_offset); |
---|
1563 | *tl++ = txdr_unsigned(len); |
---|
1564 | *tl = 0; |
---|
1565 | } else { |
---|
1566 | txdr_hyper(uiop->uio_offset, tl); |
---|
1567 | *(tl + 2) = txdr_unsigned(len); |
---|
1568 | } |
---|
1569 | /* |
---|
1570 | * Since I can't do a Getattr for NFSv4 for Write, there |
---|
1571 | * doesn't seem any point in doing one here, either. |
---|
1572 | * (See the comment in nfsrpc_writerpc() for more info.) |
---|
1573 | */ |
---|
1574 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
1575 | if (error) |
---|
1576 | return (error); |
---|
1577 | if (nd->nd_flag & ND_NFSV3) { |
---|
1578 | error = nfscl_postop_attr(nd, nap, attrflagp, stuff); |
---|
1579 | } else if (!nd->nd_repstat && (nd->nd_flag & ND_NFSV2)) { |
---|
1580 | error = nfsm_loadattr(nd, nap); |
---|
1581 | if (!error) |
---|
1582 | *attrflagp = 1; |
---|
1583 | } |
---|
1584 | if (nd->nd_repstat || error) { |
---|
1585 | if (!error) |
---|
1586 | error = nd->nd_repstat; |
---|
1587 | goto nfsmout; |
---|
1588 | } |
---|
1589 | if (nd->nd_flag & ND_NFSV3) { |
---|
1590 | NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
1591 | eof = fxdr_unsigned(int, *(tl + 1)); |
---|
1592 | } else if (nd->nd_flag & ND_NFSV4) { |
---|
1593 | NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
1594 | eof = fxdr_unsigned(int, *tl); |
---|
1595 | } |
---|
1596 | NFSM_STRSIZ(retlen, len); |
---|
1597 | error = nfsm_mbufuio(nd, uiop, retlen); |
---|
1598 | if (error) |
---|
1599 | goto nfsmout; |
---|
1600 | mbuf_freem(nd->nd_mrep); |
---|
1601 | nd->nd_mrep = NULL; |
---|
1602 | tsiz -= retlen; |
---|
1603 | if (!(nd->nd_flag & ND_NFSV2)) { |
---|
1604 | if (eof || retlen == 0) |
---|
1605 | tsiz = 0; |
---|
1606 | } else if (retlen < len) |
---|
1607 | tsiz = 0; |
---|
1608 | } |
---|
1609 | return (0); |
---|
1610 | nfsmout: |
---|
1611 | if (nd->nd_mrep != NULL) |
---|
1612 | mbuf_freem(nd->nd_mrep); |
---|
1613 | return (error); |
---|
1614 | } |
---|
1615 | |
---|
1616 | /* |
---|
1617 | * nfs write operation |
---|
1618 | * When called_from_strategy != 0, it should return EIO for an error that |
---|
1619 | * indicates recovery is in progress, so that the buffer will be left |
---|
1620 | * dirty and be written back to the server later. If it loops around, |
---|
1621 | * the recovery thread could get stuck waiting for the buffer and recovery |
---|
1622 | * will then deadlock. |
---|
1623 | */ |
---|
1624 | APPLESTATIC int |
---|
1625 | nfsrpc_write(vnode_t vp, struct uio *uiop, int *iomode, int *must_commit, |
---|
1626 | struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, |
---|
1627 | void *stuff, int called_from_strategy) |
---|
1628 | { |
---|
1629 | int error, expireret = 0, retrycnt, nostateid; |
---|
1630 | u_int32_t clidrev = 0; |
---|
1631 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
1632 | struct nfsnode *np = VTONFS(vp); |
---|
1633 | struct ucred *newcred; |
---|
1634 | struct nfsfh *nfhp = NULL; |
---|
1635 | nfsv4stateid_t stateid; |
---|
1636 | void *lckp; |
---|
1637 | |
---|
1638 | *must_commit = 0; |
---|
1639 | if (nmp->nm_clp != NULL) |
---|
1640 | clidrev = nmp->nm_clp->nfsc_clientidrev; |
---|
1641 | newcred = cred; |
---|
1642 | if (NFSHASNFSV4(nmp)) { |
---|
1643 | newcred = NFSNEWCRED(cred); |
---|
1644 | nfhp = np->n_fhp; |
---|
1645 | } |
---|
1646 | retrycnt = 0; |
---|
1647 | do { |
---|
1648 | lckp = NULL; |
---|
1649 | nostateid = 0; |
---|
1650 | if (NFSHASNFSV4(nmp)) { |
---|
1651 | (void)nfscl_getstateid(vp, nfhp->nfh_fh, nfhp->nfh_len, |
---|
1652 | NFSV4OPEN_ACCESSWRITE, 0, newcred, p, &stateid, |
---|
1653 | &lckp); |
---|
1654 | if (stateid.other[0] == 0 && stateid.other[1] == 0 && |
---|
1655 | stateid.other[2] == 0) { |
---|
1656 | nostateid = 1; |
---|
1657 | NFSCL_DEBUG(1, "stateid0 in write\n"); |
---|
1658 | } |
---|
1659 | } |
---|
1660 | |
---|
1661 | /* |
---|
1662 | * If there is no stateid for NFSv4, it means this is an |
---|
1663 | * extraneous write after close. Basically a poorly |
---|
1664 | * implemented buffer cache. Just don't do the write. |
---|
1665 | */ |
---|
1666 | if (nostateid) |
---|
1667 | error = 0; |
---|
1668 | else |
---|
1669 | error = nfsrpc_writerpc(vp, uiop, iomode, must_commit, |
---|
1670 | newcred, &stateid, p, nap, attrflagp, stuff); |
---|
1671 | if (error == NFSERR_STALESTATEID) |
---|
1672 | nfscl_initiate_recovery(nmp->nm_clp); |
---|
1673 | if (lckp != NULL) |
---|
1674 | nfscl_lockderef(lckp); |
---|
1675 | if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || |
---|
1676 | error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || |
---|
1677 | error == NFSERR_OLDSTATEID || error == NFSERR_BADSESSION) { |
---|
1678 | (void) nfs_catnap(PZERO, error, "nfs_write"); |
---|
1679 | } else if ((error == NFSERR_EXPIRED || |
---|
1680 | error == NFSERR_BADSTATEID) && clidrev != 0) { |
---|
1681 | expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); |
---|
1682 | } |
---|
1683 | retrycnt++; |
---|
1684 | } while (error == NFSERR_GRACE || error == NFSERR_DELAY || |
---|
1685 | ((error == NFSERR_STALESTATEID || error == NFSERR_BADSESSION || |
---|
1686 | error == NFSERR_STALEDONTRECOVER) && called_from_strategy == 0) || |
---|
1687 | (error == NFSERR_OLDSTATEID && retrycnt < 20) || |
---|
1688 | ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && |
---|
1689 | expireret == 0 && clidrev != 0 && retrycnt < 4)); |
---|
1690 | if (error != 0 && (retrycnt >= 4 || |
---|
1691 | ((error == NFSERR_STALESTATEID || error == NFSERR_BADSESSION || |
---|
1692 | error == NFSERR_STALEDONTRECOVER) && called_from_strategy != 0))) |
---|
1693 | error = EIO; |
---|
1694 | if (NFSHASNFSV4(nmp)) |
---|
1695 | NFSFREECRED(newcred); |
---|
1696 | return (error); |
---|
1697 | } |
---|
1698 | |
---|
1699 | /* |
---|
1700 | * The actual write RPC. |
---|
1701 | */ |
---|
1702 | static int |
---|
1703 | nfsrpc_writerpc(vnode_t vp, struct uio *uiop, int *iomode, |
---|
1704 | int *must_commit, struct ucred *cred, nfsv4stateid_t *stateidp, |
---|
1705 | NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) |
---|
1706 | { |
---|
1707 | u_int32_t *tl; |
---|
1708 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
1709 | struct nfsnode *np = VTONFS(vp); |
---|
1710 | int error = 0, len, tsiz, rlen, commit, committed = NFSWRITE_FILESYNC; |
---|
1711 | int wccflag = 0, wsize; |
---|
1712 | int32_t backup; |
---|
1713 | struct nfsrv_descript nfsd; |
---|
1714 | struct nfsrv_descript *nd = &nfsd; |
---|
1715 | nfsattrbit_t attrbits; |
---|
1716 | off_t tmp_off; |
---|
1717 | |
---|
1718 | KASSERT(uiop->uio_iovcnt == 1, ("nfs: writerpc iovcnt > 1")); |
---|
1719 | *attrflagp = 0; |
---|
1720 | tsiz = uio_uio_resid(uiop); |
---|
1721 | tmp_off = uiop->uio_offset + tsiz; |
---|
1722 | NFSLOCKMNT(nmp); |
---|
1723 | if (tmp_off > nmp->nm_maxfilesize || tmp_off < uiop->uio_offset) { |
---|
1724 | NFSUNLOCKMNT(nmp); |
---|
1725 | return (EFBIG); |
---|
1726 | } |
---|
1727 | wsize = nmp->nm_wsize; |
---|
1728 | NFSUNLOCKMNT(nmp); |
---|
1729 | nd->nd_mrep = NULL; /* NFSv2 sometimes does a write with */ |
---|
1730 | nd->nd_repstat = 0; /* uio_resid == 0, so the while is not done */ |
---|
1731 | while (tsiz > 0) { |
---|
1732 | *attrflagp = 0; |
---|
1733 | len = (tsiz > wsize) ? wsize : tsiz; |
---|
1734 | NFSCL_REQSTART(nd, NFSPROC_WRITE, vp); |
---|
1735 | if (nd->nd_flag & ND_NFSV4) { |
---|
1736 | nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); |
---|
1737 | NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+2*NFSX_UNSIGNED); |
---|
1738 | txdr_hyper(uiop->uio_offset, tl); |
---|
1739 | tl += 2; |
---|
1740 | *tl++ = txdr_unsigned(*iomode); |
---|
1741 | *tl = txdr_unsigned(len); |
---|
1742 | } else if (nd->nd_flag & ND_NFSV3) { |
---|
1743 | NFSM_BUILD(tl, u_int32_t *, NFSX_HYPER+3*NFSX_UNSIGNED); |
---|
1744 | txdr_hyper(uiop->uio_offset, tl); |
---|
1745 | tl += 2; |
---|
1746 | *tl++ = txdr_unsigned(len); |
---|
1747 | *tl++ = txdr_unsigned(*iomode); |
---|
1748 | *tl = txdr_unsigned(len); |
---|
1749 | } else { |
---|
1750 | u_int32_t x; |
---|
1751 | |
---|
1752 | NFSM_BUILD(tl, u_int32_t *, 4 * NFSX_UNSIGNED); |
---|
1753 | /* |
---|
1754 | * Not sure why someone changed this, since the |
---|
1755 | * RFC clearly states that "beginoffset" and |
---|
1756 | * "totalcount" are ignored, but it wouldn't |
---|
1757 | * surprise me if there's a busted server out there. |
---|
1758 | */ |
---|
1759 | /* Set both "begin" and "current" to non-garbage. */ |
---|
1760 | x = txdr_unsigned((u_int32_t)uiop->uio_offset); |
---|
1761 | *tl++ = x; /* "begin offset" */ |
---|
1762 | *tl++ = x; /* "current offset" */ |
---|
1763 | x = txdr_unsigned(len); |
---|
1764 | *tl++ = x; /* total to this offset */ |
---|
1765 | *tl = x; /* size of this write */ |
---|
1766 | |
---|
1767 | } |
---|
1768 | nfsm_uiombuf(nd, uiop, len); |
---|
1769 | /* |
---|
1770 | * Although it is tempting to do a normal Getattr Op in the |
---|
1771 | * NFSv4 compound, the result can be a nearly hung client |
---|
1772 | * system if the Getattr asks for Owner and/or OwnerGroup. |
---|
1773 | * It occurs when the client can't map either the Owner or |
---|
1774 | * Owner_group name in the Getattr reply to a uid/gid. When |
---|
1775 | * there is a cache miss, the kernel does an upcall to the |
---|
1776 | * nfsuserd. Then, it can try and read the local /etc/passwd |
---|
1777 | * or /etc/group file. It can then block in getnewbuf(), |
---|
1778 | * waiting for dirty writes to be pushed to the NFS server. |
---|
1779 | * The only reason this doesn't result in a complete |
---|
1780 | * deadlock, is that the upcall times out and allows |
---|
1781 | * the write to complete. However, progress is so slow |
---|
1782 | * that it might just as well be deadlocked. |
---|
1783 | * As such, we get the rest of the attributes, but not |
---|
1784 | * Owner or Owner_group. |
---|
1785 | * nb: nfscl_loadattrcache() needs to be told that these |
---|
1786 | * partial attributes from a write rpc are being |
---|
1787 | * passed in, via a argument flag. |
---|
1788 | */ |
---|
1789 | if (nd->nd_flag & ND_NFSV4) { |
---|
1790 | NFSWRITEGETATTR_ATTRBIT(&attrbits); |
---|
1791 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
1792 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
1793 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
1794 | } |
---|
1795 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
1796 | if (error) |
---|
1797 | return (error); |
---|
1798 | if (nd->nd_repstat) { |
---|
1799 | /* |
---|
1800 | * In case the rpc gets retried, roll |
---|
1801 | * the uio fileds changed by nfsm_uiombuf() |
---|
1802 | * back. |
---|
1803 | */ |
---|
1804 | uiop->uio_offset -= len; |
---|
1805 | uio_uio_resid_add(uiop, len); |
---|
1806 | uio_iov_base_add(uiop, -len); |
---|
1807 | uio_iov_len_add(uiop, len); |
---|
1808 | } |
---|
1809 | if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { |
---|
1810 | error = nfscl_wcc_data(nd, vp, nap, attrflagp, |
---|
1811 | &wccflag, stuff); |
---|
1812 | if (error) |
---|
1813 | goto nfsmout; |
---|
1814 | } |
---|
1815 | if (!nd->nd_repstat) { |
---|
1816 | if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { |
---|
1817 | NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED |
---|
1818 | + NFSX_VERF); |
---|
1819 | rlen = fxdr_unsigned(int, *tl++); |
---|
1820 | if (rlen == 0) { |
---|
1821 | error = NFSERR_IO; |
---|
1822 | goto nfsmout; |
---|
1823 | } else if (rlen < len) { |
---|
1824 | backup = len - rlen; |
---|
1825 | uio_iov_base_add(uiop, -(backup)); |
---|
1826 | uio_iov_len_add(uiop, backup); |
---|
1827 | uiop->uio_offset -= backup; |
---|
1828 | uio_uio_resid_add(uiop, backup); |
---|
1829 | len = rlen; |
---|
1830 | } |
---|
1831 | commit = fxdr_unsigned(int, *tl++); |
---|
1832 | |
---|
1833 | /* |
---|
1834 | * Return the lowest commitment level |
---|
1835 | * obtained by any of the RPCs. |
---|
1836 | */ |
---|
1837 | if (committed == NFSWRITE_FILESYNC) |
---|
1838 | committed = commit; |
---|
1839 | else if (committed == NFSWRITE_DATASYNC && |
---|
1840 | commit == NFSWRITE_UNSTABLE) |
---|
1841 | committed = commit; |
---|
1842 | NFSLOCKMNT(nmp); |
---|
1843 | if (!NFSHASWRITEVERF(nmp)) { |
---|
1844 | NFSBCOPY((caddr_t)tl, |
---|
1845 | (caddr_t)&nmp->nm_verf[0], |
---|
1846 | NFSX_VERF); |
---|
1847 | NFSSETWRITEVERF(nmp); |
---|
1848 | } else if (NFSBCMP(tl, nmp->nm_verf, |
---|
1849 | NFSX_VERF)) { |
---|
1850 | *must_commit = 1; |
---|
1851 | NFSBCOPY(tl, nmp->nm_verf, NFSX_VERF); |
---|
1852 | } |
---|
1853 | NFSUNLOCKMNT(nmp); |
---|
1854 | } |
---|
1855 | if (nd->nd_flag & ND_NFSV4) |
---|
1856 | NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
1857 | if (nd->nd_flag & (ND_NFSV2 | ND_NFSV4)) { |
---|
1858 | error = nfsm_loadattr(nd, nap); |
---|
1859 | if (!error) |
---|
1860 | *attrflagp = NFS_LATTR_NOSHRINK; |
---|
1861 | } |
---|
1862 | } else { |
---|
1863 | error = nd->nd_repstat; |
---|
1864 | } |
---|
1865 | if (error) |
---|
1866 | goto nfsmout; |
---|
1867 | NFSWRITERPC_SETTIME(wccflag, np, nap, (nd->nd_flag & ND_NFSV4)); |
---|
1868 | mbuf_freem(nd->nd_mrep); |
---|
1869 | nd->nd_mrep = NULL; |
---|
1870 | tsiz -= len; |
---|
1871 | } |
---|
1872 | nfsmout: |
---|
1873 | if (nd->nd_mrep != NULL) |
---|
1874 | mbuf_freem(nd->nd_mrep); |
---|
1875 | *iomode = committed; |
---|
1876 | if (nd->nd_repstat && !error) |
---|
1877 | error = nd->nd_repstat; |
---|
1878 | return (error); |
---|
1879 | } |
---|
1880 | |
---|
1881 | /* |
---|
1882 | * nfs mknod rpc |
---|
1883 | * For NFS v2 this is a kludge. Use a create rpc but with the IFMT bits of the |
---|
1884 | * mode set to specify the file type and the size field for rdev. |
---|
1885 | */ |
---|
1886 | APPLESTATIC int |
---|
1887 | nfsrpc_mknod(vnode_t dvp, char *name, int namelen, struct vattr *vap, |
---|
1888 | u_int32_t rdev, enum vtype vtyp, struct ucred *cred, NFSPROC_T *p, |
---|
1889 | struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, |
---|
1890 | int *attrflagp, int *dattrflagp, void *dstuff) |
---|
1891 | { |
---|
1892 | u_int32_t *tl; |
---|
1893 | int error = 0; |
---|
1894 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
1895 | nfsattrbit_t attrbits; |
---|
1896 | |
---|
1897 | *nfhpp = NULL; |
---|
1898 | *attrflagp = 0; |
---|
1899 | *dattrflagp = 0; |
---|
1900 | if (namelen > NFS_MAXNAMLEN) |
---|
1901 | return (ENAMETOOLONG); |
---|
1902 | NFSCL_REQSTART(nd, NFSPROC_MKNOD, dvp); |
---|
1903 | if (nd->nd_flag & ND_NFSV4) { |
---|
1904 | if (vtyp == VBLK || vtyp == VCHR) { |
---|
1905 | NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); |
---|
1906 | *tl++ = vtonfsv34_type(vtyp); |
---|
1907 | *tl++ = txdr_unsigned(NFSMAJOR(rdev)); |
---|
1908 | *tl = txdr_unsigned(NFSMINOR(rdev)); |
---|
1909 | } else { |
---|
1910 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
1911 | *tl = vtonfsv34_type(vtyp); |
---|
1912 | } |
---|
1913 | } |
---|
1914 | (void) nfsm_strtom(nd, name, namelen); |
---|
1915 | if (nd->nd_flag & ND_NFSV3) { |
---|
1916 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
1917 | *tl = vtonfsv34_type(vtyp); |
---|
1918 | } |
---|
1919 | if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) |
---|
1920 | nfscl_fillsattr(nd, vap, dvp, 0, 0); |
---|
1921 | if ((nd->nd_flag & ND_NFSV3) && |
---|
1922 | (vtyp == VCHR || vtyp == VBLK)) { |
---|
1923 | NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
1924 | *tl++ = txdr_unsigned(NFSMAJOR(rdev)); |
---|
1925 | *tl = txdr_unsigned(NFSMINOR(rdev)); |
---|
1926 | } |
---|
1927 | if (nd->nd_flag & ND_NFSV4) { |
---|
1928 | NFSGETATTR_ATTRBIT(&attrbits); |
---|
1929 | NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
1930 | *tl++ = txdr_unsigned(NFSV4OP_GETFH); |
---|
1931 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
1932 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
1933 | } |
---|
1934 | if (nd->nd_flag & ND_NFSV2) |
---|
1935 | nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZERDEV, rdev); |
---|
1936 | error = nfscl_request(nd, dvp, p, cred, dstuff); |
---|
1937 | if (error) |
---|
1938 | return (error); |
---|
1939 | if (nd->nd_flag & ND_NFSV4) |
---|
1940 | error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); |
---|
1941 | if (!nd->nd_repstat) { |
---|
1942 | if (nd->nd_flag & ND_NFSV4) { |
---|
1943 | NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); |
---|
1944 | error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); |
---|
1945 | if (error) |
---|
1946 | goto nfsmout; |
---|
1947 | } |
---|
1948 | error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); |
---|
1949 | if (error) |
---|
1950 | goto nfsmout; |
---|
1951 | } |
---|
1952 | if (nd->nd_flag & ND_NFSV3) |
---|
1953 | error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); |
---|
1954 | if (!error && nd->nd_repstat) |
---|
1955 | error = nd->nd_repstat; |
---|
1956 | nfsmout: |
---|
1957 | mbuf_freem(nd->nd_mrep); |
---|
1958 | return (error); |
---|
1959 | } |
---|
1960 | |
---|
1961 | /* |
---|
1962 | * nfs file create call |
---|
1963 | * Mostly just call the approriate routine. (I separated out v4, so that |
---|
1964 | * error recovery wouldn't be as difficult.) |
---|
1965 | */ |
---|
1966 | APPLESTATIC int |
---|
1967 | nfsrpc_create(vnode_t dvp, char *name, int namelen, struct vattr *vap, |
---|
1968 | nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p, |
---|
1969 | struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, |
---|
1970 | int *attrflagp, int *dattrflagp, void *dstuff) |
---|
1971 | { |
---|
1972 | int error = 0, newone, expireret = 0, retrycnt, unlocked; |
---|
1973 | struct nfsclowner *owp; |
---|
1974 | struct nfscldeleg *dp; |
---|
1975 | struct nfsmount *nmp = VFSTONFS(vnode_mount(dvp)); |
---|
1976 | u_int32_t clidrev; |
---|
1977 | |
---|
1978 | if (NFSHASNFSV4(nmp)) { |
---|
1979 | retrycnt = 0; |
---|
1980 | do { |
---|
1981 | dp = NULL; |
---|
1982 | error = nfscl_open(dvp, NULL, 0, (NFSV4OPEN_ACCESSWRITE | |
---|
1983 | NFSV4OPEN_ACCESSREAD), 0, cred, p, &owp, NULL, &newone, |
---|
1984 | NULL, 1); |
---|
1985 | if (error) |
---|
1986 | return (error); |
---|
1987 | if (nmp->nm_clp != NULL) |
---|
1988 | clidrev = nmp->nm_clp->nfsc_clientidrev; |
---|
1989 | else |
---|
1990 | clidrev = 0; |
---|
1991 | if (!NFSHASPNFS(nmp) || nfscl_enablecallb == 0 || |
---|
1992 | nfs_numnfscbd == 0 || retrycnt > 0) |
---|
1993 | error = nfsrpc_createv4(dvp, name, namelen, vap, cverf, |
---|
1994 | fmode, owp, &dp, cred, p, dnap, nnap, nfhpp, |
---|
1995 | attrflagp, dattrflagp, dstuff, &unlocked); |
---|
1996 | else |
---|
1997 | error = nfsrpc_getcreatelayout(dvp, name, namelen, vap, |
---|
1998 | cverf, fmode, owp, &dp, cred, p, dnap, nnap, nfhpp, |
---|
1999 | attrflagp, dattrflagp, dstuff, &unlocked); |
---|
2000 | /* |
---|
2001 | * There is no need to invalidate cached attributes here, |
---|
2002 | * since new post-delegation issue attributes are always |
---|
2003 | * returned by nfsrpc_createv4() and these will update the |
---|
2004 | * attribute cache. |
---|
2005 | */ |
---|
2006 | if (dp != NULL) |
---|
2007 | (void) nfscl_deleg(nmp->nm_mountp, owp->nfsow_clp, |
---|
2008 | (*nfhpp)->nfh_fh, (*nfhpp)->nfh_len, cred, p, &dp); |
---|
2009 | nfscl_ownerrelease(nmp, owp, error, newone, unlocked); |
---|
2010 | if (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || |
---|
2011 | error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || |
---|
2012 | error == NFSERR_BADSESSION) { |
---|
2013 | (void) nfs_catnap(PZERO, error, "nfs_open"); |
---|
2014 | } else if ((error == NFSERR_EXPIRED || |
---|
2015 | error == NFSERR_BADSTATEID) && clidrev != 0) { |
---|
2016 | expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); |
---|
2017 | retrycnt++; |
---|
2018 | } |
---|
2019 | } while (error == NFSERR_GRACE || error == NFSERR_STALECLIENTID || |
---|
2020 | error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || |
---|
2021 | error == NFSERR_BADSESSION || |
---|
2022 | ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && |
---|
2023 | expireret == 0 && clidrev != 0 && retrycnt < 4)); |
---|
2024 | if (error && retrycnt >= 4) |
---|
2025 | error = EIO; |
---|
2026 | } else { |
---|
2027 | error = nfsrpc_createv23(dvp, name, namelen, vap, cverf, |
---|
2028 | fmode, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp, |
---|
2029 | dstuff); |
---|
2030 | } |
---|
2031 | return (error); |
---|
2032 | } |
---|
2033 | |
---|
2034 | /* |
---|
2035 | * The create rpc for v2 and 3. |
---|
2036 | */ |
---|
2037 | static int |
---|
2038 | nfsrpc_createv23(vnode_t dvp, char *name, int namelen, struct vattr *vap, |
---|
2039 | nfsquad_t cverf, int fmode, struct ucred *cred, NFSPROC_T *p, |
---|
2040 | struct nfsvattr *dnap, struct nfsvattr *nnap, struct nfsfh **nfhpp, |
---|
2041 | int *attrflagp, int *dattrflagp, void *dstuff) |
---|
2042 | { |
---|
2043 | u_int32_t *tl; |
---|
2044 | int error = 0; |
---|
2045 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
2046 | |
---|
2047 | *nfhpp = NULL; |
---|
2048 | *attrflagp = 0; |
---|
2049 | *dattrflagp = 0; |
---|
2050 | if (namelen > NFS_MAXNAMLEN) |
---|
2051 | return (ENAMETOOLONG); |
---|
2052 | NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp); |
---|
2053 | (void) nfsm_strtom(nd, name, namelen); |
---|
2054 | if (nd->nd_flag & ND_NFSV3) { |
---|
2055 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2056 | if (fmode & O_EXCL) { |
---|
2057 | *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE); |
---|
2058 | NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); |
---|
2059 | *tl++ = cverf.lval[0]; |
---|
2060 | *tl = cverf.lval[1]; |
---|
2061 | } else { |
---|
2062 | *tl = txdr_unsigned(NFSCREATE_UNCHECKED); |
---|
2063 | nfscl_fillsattr(nd, vap, dvp, 0, 0); |
---|
2064 | } |
---|
2065 | } else { |
---|
2066 | nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZE0, 0); |
---|
2067 | } |
---|
2068 | error = nfscl_request(nd, dvp, p, cred, dstuff); |
---|
2069 | if (error) |
---|
2070 | return (error); |
---|
2071 | if (nd->nd_repstat == 0) { |
---|
2072 | error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); |
---|
2073 | if (error) |
---|
2074 | goto nfsmout; |
---|
2075 | } |
---|
2076 | if (nd->nd_flag & ND_NFSV3) |
---|
2077 | error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); |
---|
2078 | if (nd->nd_repstat != 0 && error == 0) |
---|
2079 | error = nd->nd_repstat; |
---|
2080 | nfsmout: |
---|
2081 | mbuf_freem(nd->nd_mrep); |
---|
2082 | return (error); |
---|
2083 | } |
---|
2084 | |
---|
2085 | static int |
---|
2086 | nfsrpc_createv4(vnode_t dvp, char *name, int namelen, struct vattr *vap, |
---|
2087 | nfsquad_t cverf, int fmode, struct nfsclowner *owp, struct nfscldeleg **dpp, |
---|
2088 | struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, |
---|
2089 | struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, |
---|
2090 | int *dattrflagp, void *dstuff, int *unlockedp) |
---|
2091 | { |
---|
2092 | u_int32_t *tl; |
---|
2093 | int error = 0, deleg, newone, ret, acesize, limitby; |
---|
2094 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
2095 | struct nfsclopen *op; |
---|
2096 | struct nfscldeleg *dp = NULL; |
---|
2097 | struct nfsnode *np; |
---|
2098 | struct nfsfh *nfhp; |
---|
2099 | nfsattrbit_t attrbits; |
---|
2100 | nfsv4stateid_t stateid; |
---|
2101 | u_int32_t rflags; |
---|
2102 | struct nfsmount *nmp; |
---|
2103 | struct nfsclsession *tsep; |
---|
2104 | |
---|
2105 | nmp = VFSTONFS(dvp->v_mount); |
---|
2106 | np = VTONFS(dvp); |
---|
2107 | *unlockedp = 0; |
---|
2108 | *nfhpp = NULL; |
---|
2109 | *dpp = NULL; |
---|
2110 | *attrflagp = 0; |
---|
2111 | *dattrflagp = 0; |
---|
2112 | if (namelen > NFS_MAXNAMLEN) |
---|
2113 | return (ENAMETOOLONG); |
---|
2114 | NFSCL_REQSTART(nd, NFSPROC_CREATE, dvp); |
---|
2115 | /* |
---|
2116 | * For V4, this is actually an Open op. |
---|
2117 | */ |
---|
2118 | NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); |
---|
2119 | *tl++ = txdr_unsigned(owp->nfsow_seqid); |
---|
2120 | *tl++ = txdr_unsigned(NFSV4OPEN_ACCESSWRITE | |
---|
2121 | NFSV4OPEN_ACCESSREAD); |
---|
2122 | *tl++ = txdr_unsigned(NFSV4OPEN_DENYNONE); |
---|
2123 | tsep = nfsmnt_mdssession(nmp); |
---|
2124 | *tl++ = tsep->nfsess_clientid.lval[0]; |
---|
2125 | *tl = tsep->nfsess_clientid.lval[1]; |
---|
2126 | (void) nfsm_strtom(nd, owp->nfsow_owner, NFSV4CL_LOCKNAMELEN); |
---|
2127 | NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
2128 | *tl++ = txdr_unsigned(NFSV4OPEN_CREATE); |
---|
2129 | if (fmode & O_EXCL) { |
---|
2130 | if (NFSHASNFSV4N(nmp)) { |
---|
2131 | if (NFSHASSESSPERSIST(nmp)) { |
---|
2132 | /* Use GUARDED for persistent sessions. */ |
---|
2133 | *tl = txdr_unsigned(NFSCREATE_GUARDED); |
---|
2134 | nfscl_fillsattr(nd, vap, dvp, 0, 0); |
---|
2135 | } else { |
---|
2136 | /* Otherwise, use EXCLUSIVE4_1. */ |
---|
2137 | *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE41); |
---|
2138 | NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); |
---|
2139 | *tl++ = cverf.lval[0]; |
---|
2140 | *tl = cverf.lval[1]; |
---|
2141 | nfscl_fillsattr(nd, vap, dvp, 0, 0); |
---|
2142 | } |
---|
2143 | } else { |
---|
2144 | /* NFSv4.0 */ |
---|
2145 | *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE); |
---|
2146 | NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); |
---|
2147 | *tl++ = cverf.lval[0]; |
---|
2148 | *tl = cverf.lval[1]; |
---|
2149 | } |
---|
2150 | } else { |
---|
2151 | *tl = txdr_unsigned(NFSCREATE_UNCHECKED); |
---|
2152 | nfscl_fillsattr(nd, vap, dvp, 0, 0); |
---|
2153 | } |
---|
2154 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2155 | *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); |
---|
2156 | (void) nfsm_strtom(nd, name, namelen); |
---|
2157 | /* Get the new file's handle and attributes. */ |
---|
2158 | NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
2159 | *tl++ = txdr_unsigned(NFSV4OP_GETFH); |
---|
2160 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
2161 | NFSGETATTR_ATTRBIT(&attrbits); |
---|
2162 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
2163 | /* Get the directory's post-op attributes. */ |
---|
2164 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2165 | *tl = txdr_unsigned(NFSV4OP_PUTFH); |
---|
2166 | (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, np->n_fhp->nfh_len, 0); |
---|
2167 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2168 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
2169 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
2170 | error = nfscl_request(nd, dvp, p, cred, dstuff); |
---|
2171 | if (error) |
---|
2172 | return (error); |
---|
2173 | NFSCL_INCRSEQID(owp->nfsow_seqid, nd); |
---|
2174 | if (nd->nd_repstat == 0) { |
---|
2175 | NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + |
---|
2176 | 6 * NFSX_UNSIGNED); |
---|
2177 | stateid.seqid = *tl++; |
---|
2178 | stateid.other[0] = *tl++; |
---|
2179 | stateid.other[1] = *tl++; |
---|
2180 | stateid.other[2] = *tl; |
---|
2181 | rflags = fxdr_unsigned(u_int32_t, *(tl + 6)); |
---|
2182 | (void) nfsrv_getattrbits(nd, &attrbits, NULL, NULL); |
---|
2183 | NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2184 | deleg = fxdr_unsigned(int, *tl); |
---|
2185 | if (deleg == NFSV4OPEN_DELEGATEREAD || |
---|
2186 | deleg == NFSV4OPEN_DELEGATEWRITE) { |
---|
2187 | if (!(owp->nfsow_clp->nfsc_flags & |
---|
2188 | NFSCLFLAGS_FIRSTDELEG)) |
---|
2189 | owp->nfsow_clp->nfsc_flags |= |
---|
2190 | (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); |
---|
2191 | dp = malloc( |
---|
2192 | sizeof (struct nfscldeleg) + NFSX_V4FHMAX, |
---|
2193 | M_NFSCLDELEG, M_WAITOK); |
---|
2194 | LIST_INIT(&dp->nfsdl_owner); |
---|
2195 | LIST_INIT(&dp->nfsdl_lock); |
---|
2196 | dp->nfsdl_clp = owp->nfsow_clp; |
---|
2197 | newnfs_copyincred(cred, &dp->nfsdl_cred); |
---|
2198 | nfscl_lockinit(&dp->nfsdl_rwlock); |
---|
2199 | NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + |
---|
2200 | NFSX_UNSIGNED); |
---|
2201 | dp->nfsdl_stateid.seqid = *tl++; |
---|
2202 | dp->nfsdl_stateid.other[0] = *tl++; |
---|
2203 | dp->nfsdl_stateid.other[1] = *tl++; |
---|
2204 | dp->nfsdl_stateid.other[2] = *tl++; |
---|
2205 | ret = fxdr_unsigned(int, *tl); |
---|
2206 | if (deleg == NFSV4OPEN_DELEGATEWRITE) { |
---|
2207 | dp->nfsdl_flags = NFSCLDL_WRITE; |
---|
2208 | /* |
---|
2209 | * Indicates how much the file can grow. |
---|
2210 | */ |
---|
2211 | NFSM_DISSECT(tl, u_int32_t *, |
---|
2212 | 3 * NFSX_UNSIGNED); |
---|
2213 | limitby = fxdr_unsigned(int, *tl++); |
---|
2214 | switch (limitby) { |
---|
2215 | case NFSV4OPEN_LIMITSIZE: |
---|
2216 | dp->nfsdl_sizelimit = fxdr_hyper(tl); |
---|
2217 | break; |
---|
2218 | case NFSV4OPEN_LIMITBLOCKS: |
---|
2219 | dp->nfsdl_sizelimit = |
---|
2220 | fxdr_unsigned(u_int64_t, *tl++); |
---|
2221 | dp->nfsdl_sizelimit *= |
---|
2222 | fxdr_unsigned(u_int64_t, *tl); |
---|
2223 | break; |
---|
2224 | default: |
---|
2225 | error = NFSERR_BADXDR; |
---|
2226 | goto nfsmout; |
---|
2227 | } |
---|
2228 | } else { |
---|
2229 | dp->nfsdl_flags = NFSCLDL_READ; |
---|
2230 | } |
---|
2231 | if (ret) |
---|
2232 | dp->nfsdl_flags |= NFSCLDL_RECALL; |
---|
2233 | error = nfsrv_dissectace(nd, &dp->nfsdl_ace, &ret, |
---|
2234 | &acesize, p); |
---|
2235 | if (error) |
---|
2236 | goto nfsmout; |
---|
2237 | } else if (deleg != NFSV4OPEN_DELEGATENONE) { |
---|
2238 | error = NFSERR_BADXDR; |
---|
2239 | goto nfsmout; |
---|
2240 | } |
---|
2241 | error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); |
---|
2242 | if (error) |
---|
2243 | goto nfsmout; |
---|
2244 | /* Get rid of the PutFH and Getattr status values. */ |
---|
2245 | NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED); |
---|
2246 | /* Load the directory attributes. */ |
---|
2247 | error = nfsm_loadattr(nd, dnap); |
---|
2248 | if (error) |
---|
2249 | goto nfsmout; |
---|
2250 | *dattrflagp = 1; |
---|
2251 | if (dp != NULL && *attrflagp) { |
---|
2252 | dp->nfsdl_change = nnap->na_filerev; |
---|
2253 | dp->nfsdl_modtime = nnap->na_mtime; |
---|
2254 | dp->nfsdl_flags |= NFSCLDL_MODTIMESET; |
---|
2255 | } |
---|
2256 | /* |
---|
2257 | * We can now complete the Open state. |
---|
2258 | */ |
---|
2259 | nfhp = *nfhpp; |
---|
2260 | if (dp != NULL) { |
---|
2261 | dp->nfsdl_fhlen = nfhp->nfh_len; |
---|
2262 | NFSBCOPY(nfhp->nfh_fh, dp->nfsdl_fh, nfhp->nfh_len); |
---|
2263 | } |
---|
2264 | /* |
---|
2265 | * Get an Open structure that will be |
---|
2266 | * attached to the OpenOwner, acquired already. |
---|
2267 | */ |
---|
2268 | error = nfscl_open(dvp, nfhp->nfh_fh, nfhp->nfh_len, |
---|
2269 | (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), 0, |
---|
2270 | cred, p, NULL, &op, &newone, NULL, 0); |
---|
2271 | if (error) |
---|
2272 | goto nfsmout; |
---|
2273 | op->nfso_stateid = stateid; |
---|
2274 | newnfs_copyincred(cred, &op->nfso_cred); |
---|
2275 | if ((rflags & NFSV4OPEN_RESULTCONFIRM)) { |
---|
2276 | do { |
---|
2277 | ret = nfsrpc_openconfirm(dvp, nfhp->nfh_fh, |
---|
2278 | nfhp->nfh_len, op, cred, p); |
---|
2279 | if (ret == NFSERR_DELAY) |
---|
2280 | (void) nfs_catnap(PZERO, ret, "nfs_create"); |
---|
2281 | } while (ret == NFSERR_DELAY); |
---|
2282 | error = ret; |
---|
2283 | } |
---|
2284 | |
---|
2285 | /* |
---|
2286 | * If the server is handing out delegations, but we didn't |
---|
2287 | * get one because an OpenConfirm was required, try the |
---|
2288 | * Open again, to get a delegation. This is a harmless no-op, |
---|
2289 | * from a server's point of view. |
---|
2290 | */ |
---|
2291 | if ((rflags & NFSV4OPEN_RESULTCONFIRM) && |
---|
2292 | (owp->nfsow_clp->nfsc_flags & NFSCLFLAGS_GOTDELEG) && |
---|
2293 | !error && dp == NULL) { |
---|
2294 | do { |
---|
2295 | ret = nfsrpc_openrpc(VFSTONFS(vnode_mount(dvp)), dvp, |
---|
2296 | np->n_fhp->nfh_fh, np->n_fhp->nfh_len, |
---|
2297 | nfhp->nfh_fh, nfhp->nfh_len, |
---|
2298 | (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), op, |
---|
2299 | name, namelen, &dp, 0, 0x0, cred, p, 0, 1); |
---|
2300 | if (ret == NFSERR_DELAY) |
---|
2301 | (void) nfs_catnap(PZERO, ret, "nfs_crt2"); |
---|
2302 | } while (ret == NFSERR_DELAY); |
---|
2303 | if (ret) { |
---|
2304 | if (dp != NULL) { |
---|
2305 | free(dp, M_NFSCLDELEG); |
---|
2306 | dp = NULL; |
---|
2307 | } |
---|
2308 | if (ret == NFSERR_STALECLIENTID || |
---|
2309 | ret == NFSERR_STALEDONTRECOVER || |
---|
2310 | ret == NFSERR_BADSESSION) |
---|
2311 | error = ret; |
---|
2312 | } |
---|
2313 | } |
---|
2314 | nfscl_openrelease(nmp, op, error, newone); |
---|
2315 | *unlockedp = 1; |
---|
2316 | } |
---|
2317 | if (nd->nd_repstat != 0 && error == 0) |
---|
2318 | error = nd->nd_repstat; |
---|
2319 | if (error == NFSERR_STALECLIENTID) |
---|
2320 | nfscl_initiate_recovery(owp->nfsow_clp); |
---|
2321 | nfsmout: |
---|
2322 | if (!error) |
---|
2323 | *dpp = dp; |
---|
2324 | else if (dp != NULL) |
---|
2325 | free(dp, M_NFSCLDELEG); |
---|
2326 | mbuf_freem(nd->nd_mrep); |
---|
2327 | return (error); |
---|
2328 | } |
---|
2329 | |
---|
2330 | /* |
---|
2331 | * Nfs remove rpc |
---|
2332 | */ |
---|
2333 | APPLESTATIC int |
---|
2334 | nfsrpc_remove(vnode_t dvp, char *name, int namelen, vnode_t vp, |
---|
2335 | struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp, |
---|
2336 | void *dstuff) |
---|
2337 | { |
---|
2338 | u_int32_t *tl; |
---|
2339 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
2340 | struct nfsnode *np; |
---|
2341 | struct nfsmount *nmp; |
---|
2342 | nfsv4stateid_t dstateid; |
---|
2343 | int error, ret = 0, i; |
---|
2344 | |
---|
2345 | *dattrflagp = 0; |
---|
2346 | if (namelen > NFS_MAXNAMLEN) |
---|
2347 | return (ENAMETOOLONG); |
---|
2348 | nmp = VFSTONFS(vnode_mount(dvp)); |
---|
2349 | tryagain: |
---|
2350 | if (NFSHASNFSV4(nmp) && ret == 0) { |
---|
2351 | ret = nfscl_removedeleg(vp, p, &dstateid); |
---|
2352 | if (ret == 1) { |
---|
2353 | NFSCL_REQSTART(nd, NFSPROC_RETDELEGREMOVE, vp); |
---|
2354 | NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + |
---|
2355 | NFSX_UNSIGNED); |
---|
2356 | if (NFSHASNFSV4N(nmp)) |
---|
2357 | *tl++ = 0; |
---|
2358 | else |
---|
2359 | *tl++ = dstateid.seqid; |
---|
2360 | *tl++ = dstateid.other[0]; |
---|
2361 | *tl++ = dstateid.other[1]; |
---|
2362 | *tl++ = dstateid.other[2]; |
---|
2363 | *tl = txdr_unsigned(NFSV4OP_PUTFH); |
---|
2364 | np = VTONFS(dvp); |
---|
2365 | (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, |
---|
2366 | np->n_fhp->nfh_len, 0); |
---|
2367 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2368 | *tl = txdr_unsigned(NFSV4OP_REMOVE); |
---|
2369 | } |
---|
2370 | } else { |
---|
2371 | ret = 0; |
---|
2372 | } |
---|
2373 | if (ret == 0) |
---|
2374 | NFSCL_REQSTART(nd, NFSPROC_REMOVE, dvp); |
---|
2375 | (void) nfsm_strtom(nd, name, namelen); |
---|
2376 | error = nfscl_request(nd, dvp, p, cred, dstuff); |
---|
2377 | if (error) |
---|
2378 | return (error); |
---|
2379 | if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { |
---|
2380 | /* For NFSv4, parse out any Delereturn replies. */ |
---|
2381 | if (ret > 0 && nd->nd_repstat != 0 && |
---|
2382 | (nd->nd_flag & ND_NOMOREDATA)) { |
---|
2383 | /* |
---|
2384 | * If the Delegreturn failed, try again without |
---|
2385 | * it. The server will Recall, as required. |
---|
2386 | */ |
---|
2387 | mbuf_freem(nd->nd_mrep); |
---|
2388 | goto tryagain; |
---|
2389 | } |
---|
2390 | for (i = 0; i < (ret * 2); i++) { |
---|
2391 | if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == |
---|
2392 | ND_NFSV4) { |
---|
2393 | NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
2394 | if (*(tl + 1)) |
---|
2395 | nd->nd_flag |= ND_NOMOREDATA; |
---|
2396 | } |
---|
2397 | } |
---|
2398 | error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); |
---|
2399 | } |
---|
2400 | if (nd->nd_repstat && !error) |
---|
2401 | error = nd->nd_repstat; |
---|
2402 | nfsmout: |
---|
2403 | mbuf_freem(nd->nd_mrep); |
---|
2404 | return (error); |
---|
2405 | } |
---|
2406 | |
---|
2407 | /* |
---|
2408 | * Do an nfs rename rpc. |
---|
2409 | */ |
---|
2410 | APPLESTATIC int |
---|
2411 | nfsrpc_rename(vnode_t fdvp, vnode_t fvp, char *fnameptr, int fnamelen, |
---|
2412 | vnode_t tdvp, vnode_t tvp, char *tnameptr, int tnamelen, struct ucred *cred, |
---|
2413 | NFSPROC_T *p, struct nfsvattr *fnap, struct nfsvattr *tnap, |
---|
2414 | int *fattrflagp, int *tattrflagp, void *fstuff, void *tstuff) |
---|
2415 | { |
---|
2416 | u_int32_t *tl; |
---|
2417 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
2418 | struct nfsmount *nmp; |
---|
2419 | struct nfsnode *np; |
---|
2420 | nfsattrbit_t attrbits; |
---|
2421 | nfsv4stateid_t fdstateid, tdstateid; |
---|
2422 | int error = 0, ret = 0, gottd = 0, gotfd = 0, i; |
---|
2423 | |
---|
2424 | *fattrflagp = 0; |
---|
2425 | *tattrflagp = 0; |
---|
2426 | nmp = VFSTONFS(vnode_mount(fdvp)); |
---|
2427 | if (fnamelen > NFS_MAXNAMLEN || tnamelen > NFS_MAXNAMLEN) |
---|
2428 | return (ENAMETOOLONG); |
---|
2429 | tryagain: |
---|
2430 | if (NFSHASNFSV4(nmp) && ret == 0) { |
---|
2431 | ret = nfscl_renamedeleg(fvp, &fdstateid, &gotfd, tvp, |
---|
2432 | &tdstateid, &gottd, p); |
---|
2433 | if (gotfd && gottd) { |
---|
2434 | NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME2, fvp); |
---|
2435 | } else if (gotfd) { |
---|
2436 | NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, fvp); |
---|
2437 | } else if (gottd) { |
---|
2438 | NFSCL_REQSTART(nd, NFSPROC_RETDELEGRENAME1, tvp); |
---|
2439 | } |
---|
2440 | if (gotfd) { |
---|
2441 | NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); |
---|
2442 | if (NFSHASNFSV4N(nmp)) |
---|
2443 | *tl++ = 0; |
---|
2444 | else |
---|
2445 | *tl++ = fdstateid.seqid; |
---|
2446 | *tl++ = fdstateid.other[0]; |
---|
2447 | *tl++ = fdstateid.other[1]; |
---|
2448 | *tl = fdstateid.other[2]; |
---|
2449 | if (gottd) { |
---|
2450 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2451 | *tl = txdr_unsigned(NFSV4OP_PUTFH); |
---|
2452 | np = VTONFS(tvp); |
---|
2453 | (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, |
---|
2454 | np->n_fhp->nfh_len, 0); |
---|
2455 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2456 | *tl = txdr_unsigned(NFSV4OP_DELEGRETURN); |
---|
2457 | } |
---|
2458 | } |
---|
2459 | if (gottd) { |
---|
2460 | NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); |
---|
2461 | if (NFSHASNFSV4N(nmp)) |
---|
2462 | *tl++ = 0; |
---|
2463 | else |
---|
2464 | *tl++ = tdstateid.seqid; |
---|
2465 | *tl++ = tdstateid.other[0]; |
---|
2466 | *tl++ = tdstateid.other[1]; |
---|
2467 | *tl = tdstateid.other[2]; |
---|
2468 | } |
---|
2469 | if (ret > 0) { |
---|
2470 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2471 | *tl = txdr_unsigned(NFSV4OP_PUTFH); |
---|
2472 | np = VTONFS(fdvp); |
---|
2473 | (void) nfsm_fhtom(nd, np->n_fhp->nfh_fh, |
---|
2474 | np->n_fhp->nfh_len, 0); |
---|
2475 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2476 | *tl = txdr_unsigned(NFSV4OP_SAVEFH); |
---|
2477 | } |
---|
2478 | } else { |
---|
2479 | ret = 0; |
---|
2480 | } |
---|
2481 | if (ret == 0) |
---|
2482 | NFSCL_REQSTART(nd, NFSPROC_RENAME, fdvp); |
---|
2483 | if (nd->nd_flag & ND_NFSV4) { |
---|
2484 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2485 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
2486 | NFSWCCATTR_ATTRBIT(&attrbits); |
---|
2487 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
2488 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2489 | *tl = txdr_unsigned(NFSV4OP_PUTFH); |
---|
2490 | (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh, |
---|
2491 | VTONFS(tdvp)->n_fhp->nfh_len, 0); |
---|
2492 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2493 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
2494 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
2495 | nd->nd_flag |= ND_V4WCCATTR; |
---|
2496 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2497 | *tl = txdr_unsigned(NFSV4OP_RENAME); |
---|
2498 | } |
---|
2499 | (void) nfsm_strtom(nd, fnameptr, fnamelen); |
---|
2500 | if (!(nd->nd_flag & ND_NFSV4)) |
---|
2501 | (void) nfsm_fhtom(nd, VTONFS(tdvp)->n_fhp->nfh_fh, |
---|
2502 | VTONFS(tdvp)->n_fhp->nfh_len, 0); |
---|
2503 | (void) nfsm_strtom(nd, tnameptr, tnamelen); |
---|
2504 | error = nfscl_request(nd, fdvp, p, cred, fstuff); |
---|
2505 | if (error) |
---|
2506 | return (error); |
---|
2507 | if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) { |
---|
2508 | /* For NFSv4, parse out any Delereturn replies. */ |
---|
2509 | if (ret > 0 && nd->nd_repstat != 0 && |
---|
2510 | (nd->nd_flag & ND_NOMOREDATA)) { |
---|
2511 | /* |
---|
2512 | * If the Delegreturn failed, try again without |
---|
2513 | * it. The server will Recall, as required. |
---|
2514 | */ |
---|
2515 | mbuf_freem(nd->nd_mrep); |
---|
2516 | goto tryagain; |
---|
2517 | } |
---|
2518 | for (i = 0; i < (ret * 2); i++) { |
---|
2519 | if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == |
---|
2520 | ND_NFSV4) { |
---|
2521 | NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
2522 | if (*(tl + 1)) { |
---|
2523 | if (i == 0 && ret > 1) { |
---|
2524 | /* |
---|
2525 | * If the Delegreturn failed, try again |
---|
2526 | * without it. The server will Recall, as |
---|
2527 | * required. |
---|
2528 | * If ret > 1, the first iteration of this |
---|
2529 | * loop is the second DelegReturn result. |
---|
2530 | */ |
---|
2531 | mbuf_freem(nd->nd_mrep); |
---|
2532 | goto tryagain; |
---|
2533 | } else { |
---|
2534 | nd->nd_flag |= ND_NOMOREDATA; |
---|
2535 | } |
---|
2536 | } |
---|
2537 | } |
---|
2538 | } |
---|
2539 | /* Now, the first wcc attribute reply. */ |
---|
2540 | if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { |
---|
2541 | NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
2542 | if (*(tl + 1)) |
---|
2543 | nd->nd_flag |= ND_NOMOREDATA; |
---|
2544 | } |
---|
2545 | error = nfscl_wcc_data(nd, fdvp, fnap, fattrflagp, NULL, |
---|
2546 | fstuff); |
---|
2547 | /* and the second wcc attribute reply. */ |
---|
2548 | if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4 && |
---|
2549 | !error) { |
---|
2550 | NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
2551 | if (*(tl + 1)) |
---|
2552 | nd->nd_flag |= ND_NOMOREDATA; |
---|
2553 | } |
---|
2554 | if (!error) |
---|
2555 | error = nfscl_wcc_data(nd, tdvp, tnap, tattrflagp, |
---|
2556 | NULL, tstuff); |
---|
2557 | } |
---|
2558 | if (nd->nd_repstat && !error) |
---|
2559 | error = nd->nd_repstat; |
---|
2560 | nfsmout: |
---|
2561 | mbuf_freem(nd->nd_mrep); |
---|
2562 | return (error); |
---|
2563 | } |
---|
2564 | |
---|
2565 | /* |
---|
2566 | * nfs hard link create rpc |
---|
2567 | */ |
---|
2568 | APPLESTATIC int |
---|
2569 | nfsrpc_link(vnode_t dvp, vnode_t vp, char *name, int namelen, |
---|
2570 | struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, |
---|
2571 | struct nfsvattr *nap, int *attrflagp, int *dattrflagp, void *dstuff) |
---|
2572 | { |
---|
2573 | u_int32_t *tl; |
---|
2574 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
2575 | nfsattrbit_t attrbits; |
---|
2576 | int error = 0; |
---|
2577 | |
---|
2578 | *attrflagp = 0; |
---|
2579 | *dattrflagp = 0; |
---|
2580 | if (namelen > NFS_MAXNAMLEN) |
---|
2581 | return (ENAMETOOLONG); |
---|
2582 | NFSCL_REQSTART(nd, NFSPROC_LINK, vp); |
---|
2583 | if (nd->nd_flag & ND_NFSV4) { |
---|
2584 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2585 | *tl = txdr_unsigned(NFSV4OP_PUTFH); |
---|
2586 | } |
---|
2587 | (void) nfsm_fhtom(nd, VTONFS(dvp)->n_fhp->nfh_fh, |
---|
2588 | VTONFS(dvp)->n_fhp->nfh_len, 0); |
---|
2589 | if (nd->nd_flag & ND_NFSV4) { |
---|
2590 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2591 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
2592 | NFSWCCATTR_ATTRBIT(&attrbits); |
---|
2593 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
2594 | nd->nd_flag |= ND_V4WCCATTR; |
---|
2595 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2596 | *tl = txdr_unsigned(NFSV4OP_LINK); |
---|
2597 | } |
---|
2598 | (void) nfsm_strtom(nd, name, namelen); |
---|
2599 | error = nfscl_request(nd, vp, p, cred, dstuff); |
---|
2600 | if (error) |
---|
2601 | return (error); |
---|
2602 | if (nd->nd_flag & ND_NFSV3) { |
---|
2603 | error = nfscl_postop_attr(nd, nap, attrflagp, dstuff); |
---|
2604 | if (!error) |
---|
2605 | error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, |
---|
2606 | NULL, dstuff); |
---|
2607 | } else if ((nd->nd_flag & (ND_NFSV4 | ND_NOMOREDATA)) == ND_NFSV4) { |
---|
2608 | /* |
---|
2609 | * First, parse out the PutFH and Getattr result. |
---|
2610 | */ |
---|
2611 | NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
2612 | if (!(*(tl + 1))) |
---|
2613 | NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
2614 | if (*(tl + 1)) |
---|
2615 | nd->nd_flag |= ND_NOMOREDATA; |
---|
2616 | /* |
---|
2617 | * Get the pre-op attributes. |
---|
2618 | */ |
---|
2619 | error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); |
---|
2620 | } |
---|
2621 | if (nd->nd_repstat && !error) |
---|
2622 | error = nd->nd_repstat; |
---|
2623 | nfsmout: |
---|
2624 | mbuf_freem(nd->nd_mrep); |
---|
2625 | return (error); |
---|
2626 | } |
---|
2627 | |
---|
2628 | /* |
---|
2629 | * nfs symbolic link create rpc |
---|
2630 | */ |
---|
2631 | APPLESTATIC int |
---|
2632 | nfsrpc_symlink(vnode_t dvp, char *name, int namelen, char *target, |
---|
2633 | struct vattr *vap, struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, |
---|
2634 | struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, |
---|
2635 | int *dattrflagp, void *dstuff) |
---|
2636 | { |
---|
2637 | u_int32_t *tl; |
---|
2638 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
2639 | struct nfsmount *nmp; |
---|
2640 | int slen, error = 0; |
---|
2641 | |
---|
2642 | *nfhpp = NULL; |
---|
2643 | *attrflagp = 0; |
---|
2644 | *dattrflagp = 0; |
---|
2645 | nmp = VFSTONFS(vnode_mount(dvp)); |
---|
2646 | slen = strlen(target); |
---|
2647 | if (slen > NFS_MAXPATHLEN || namelen > NFS_MAXNAMLEN) |
---|
2648 | return (ENAMETOOLONG); |
---|
2649 | NFSCL_REQSTART(nd, NFSPROC_SYMLINK, dvp); |
---|
2650 | if (nd->nd_flag & ND_NFSV4) { |
---|
2651 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2652 | *tl = txdr_unsigned(NFLNK); |
---|
2653 | (void) nfsm_strtom(nd, target, slen); |
---|
2654 | } |
---|
2655 | (void) nfsm_strtom(nd, name, namelen); |
---|
2656 | if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) |
---|
2657 | nfscl_fillsattr(nd, vap, dvp, 0, 0); |
---|
2658 | if (!(nd->nd_flag & ND_NFSV4)) |
---|
2659 | (void) nfsm_strtom(nd, target, slen); |
---|
2660 | if (nd->nd_flag & ND_NFSV2) |
---|
2661 | nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0); |
---|
2662 | error = nfscl_request(nd, dvp, p, cred, dstuff); |
---|
2663 | if (error) |
---|
2664 | return (error); |
---|
2665 | if (nd->nd_flag & ND_NFSV4) |
---|
2666 | error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); |
---|
2667 | if ((nd->nd_flag & ND_NFSV3) && !error) { |
---|
2668 | if (!nd->nd_repstat) |
---|
2669 | error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); |
---|
2670 | if (!error) |
---|
2671 | error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, |
---|
2672 | NULL, dstuff); |
---|
2673 | } |
---|
2674 | if (nd->nd_repstat && !error) |
---|
2675 | error = nd->nd_repstat; |
---|
2676 | mbuf_freem(nd->nd_mrep); |
---|
2677 | /* |
---|
2678 | * Kludge: Map EEXIST => 0 assuming that it is a reply to a retry. |
---|
2679 | * Only do this if vfs.nfs.ignore_eexist is set. |
---|
2680 | * Never do this for NFSv4.1 or later minor versions, since sessions |
---|
2681 | * should guarantee "exactly once" RPC semantics. |
---|
2682 | */ |
---|
2683 | if (error == EEXIST && nfsignore_eexist != 0 && (!NFSHASNFSV4(nmp) || |
---|
2684 | nmp->nm_minorvers == 0)) |
---|
2685 | error = 0; |
---|
2686 | return (error); |
---|
2687 | } |
---|
2688 | |
---|
2689 | /* |
---|
2690 | * nfs make dir rpc |
---|
2691 | */ |
---|
2692 | APPLESTATIC int |
---|
2693 | nfsrpc_mkdir(vnode_t dvp, char *name, int namelen, struct vattr *vap, |
---|
2694 | struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, |
---|
2695 | struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, |
---|
2696 | int *dattrflagp, void *dstuff) |
---|
2697 | { |
---|
2698 | u_int32_t *tl; |
---|
2699 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
2700 | nfsattrbit_t attrbits; |
---|
2701 | int error = 0; |
---|
2702 | struct nfsfh *fhp; |
---|
2703 | struct nfsmount *nmp; |
---|
2704 | |
---|
2705 | *nfhpp = NULL; |
---|
2706 | *attrflagp = 0; |
---|
2707 | *dattrflagp = 0; |
---|
2708 | nmp = VFSTONFS(vnode_mount(dvp)); |
---|
2709 | fhp = VTONFS(dvp)->n_fhp; |
---|
2710 | if (namelen > NFS_MAXNAMLEN) |
---|
2711 | return (ENAMETOOLONG); |
---|
2712 | NFSCL_REQSTART(nd, NFSPROC_MKDIR, dvp); |
---|
2713 | if (nd->nd_flag & ND_NFSV4) { |
---|
2714 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2715 | *tl = txdr_unsigned(NFDIR); |
---|
2716 | } |
---|
2717 | (void) nfsm_strtom(nd, name, namelen); |
---|
2718 | nfscl_fillsattr(nd, vap, dvp, NFSSATTR_SIZENEG1, 0); |
---|
2719 | if (nd->nd_flag & ND_NFSV4) { |
---|
2720 | NFSGETATTR_ATTRBIT(&attrbits); |
---|
2721 | NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
2722 | *tl++ = txdr_unsigned(NFSV4OP_GETFH); |
---|
2723 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
2724 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
2725 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2726 | *tl = txdr_unsigned(NFSV4OP_PUTFH); |
---|
2727 | (void) nfsm_fhtom(nd, fhp->nfh_fh, fhp->nfh_len, 0); |
---|
2728 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
2729 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
2730 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
2731 | } |
---|
2732 | error = nfscl_request(nd, dvp, p, cred, dstuff); |
---|
2733 | if (error) |
---|
2734 | return (error); |
---|
2735 | if (nd->nd_flag & ND_NFSV4) |
---|
2736 | error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); |
---|
2737 | if (!nd->nd_repstat && !error) { |
---|
2738 | if (nd->nd_flag & ND_NFSV4) { |
---|
2739 | NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); |
---|
2740 | error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); |
---|
2741 | } |
---|
2742 | if (!error) |
---|
2743 | error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); |
---|
2744 | if (error == 0 && (nd->nd_flag & ND_NFSV4) != 0) { |
---|
2745 | /* Get rid of the PutFH and Getattr status values. */ |
---|
2746 | NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED); |
---|
2747 | /* Load the directory attributes. */ |
---|
2748 | error = nfsm_loadattr(nd, dnap); |
---|
2749 | if (error == 0) |
---|
2750 | *dattrflagp = 1; |
---|
2751 | } |
---|
2752 | } |
---|
2753 | if ((nd->nd_flag & ND_NFSV3) && !error) |
---|
2754 | error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); |
---|
2755 | if (nd->nd_repstat && !error) |
---|
2756 | error = nd->nd_repstat; |
---|
2757 | nfsmout: |
---|
2758 | mbuf_freem(nd->nd_mrep); |
---|
2759 | /* |
---|
2760 | * Kludge: Map EEXIST => 0 assuming that it is a reply to a retry. |
---|
2761 | * Only do this if vfs.nfs.ignore_eexist is set. |
---|
2762 | * Never do this for NFSv4.1 or later minor versions, since sessions |
---|
2763 | * should guarantee "exactly once" RPC semantics. |
---|
2764 | */ |
---|
2765 | if (error == EEXIST && nfsignore_eexist != 0 && (!NFSHASNFSV4(nmp) || |
---|
2766 | nmp->nm_minorvers == 0)) |
---|
2767 | error = 0; |
---|
2768 | return (error); |
---|
2769 | } |
---|
2770 | |
---|
2771 | /* |
---|
2772 | * nfs remove directory call |
---|
2773 | */ |
---|
2774 | APPLESTATIC int |
---|
2775 | nfsrpc_rmdir(vnode_t dvp, char *name, int namelen, struct ucred *cred, |
---|
2776 | NFSPROC_T *p, struct nfsvattr *dnap, int *dattrflagp, void *dstuff) |
---|
2777 | { |
---|
2778 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
2779 | int error = 0; |
---|
2780 | |
---|
2781 | *dattrflagp = 0; |
---|
2782 | if (namelen > NFS_MAXNAMLEN) |
---|
2783 | return (ENAMETOOLONG); |
---|
2784 | NFSCL_REQSTART(nd, NFSPROC_RMDIR, dvp); |
---|
2785 | (void) nfsm_strtom(nd, name, namelen); |
---|
2786 | error = nfscl_request(nd, dvp, p, cred, dstuff); |
---|
2787 | if (error) |
---|
2788 | return (error); |
---|
2789 | if (nd->nd_flag & (ND_NFSV3 | ND_NFSV4)) |
---|
2790 | error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff); |
---|
2791 | if (nd->nd_repstat && !error) |
---|
2792 | error = nd->nd_repstat; |
---|
2793 | mbuf_freem(nd->nd_mrep); |
---|
2794 | /* |
---|
2795 | * Kludge: Map ENOENT => 0 assuming that you have a reply to a retry. |
---|
2796 | */ |
---|
2797 | if (error == ENOENT) |
---|
2798 | error = 0; |
---|
2799 | return (error); |
---|
2800 | } |
---|
2801 | |
---|
2802 | /* |
---|
2803 | * Readdir rpc. |
---|
2804 | * Always returns with either uio_resid unchanged, if you are at the |
---|
2805 | * end of the directory, or uio_resid == 0, with all DIRBLKSIZ chunks |
---|
2806 | * filled in. |
---|
2807 | * I felt this would allow caching of directory blocks more easily |
---|
2808 | * than returning a pertially filled block. |
---|
2809 | * Directory offset cookies: |
---|
2810 | * Oh my, what to do with them... |
---|
2811 | * I can think of three ways to deal with them: |
---|
2812 | * 1 - have the layer above these RPCs maintain a map between logical |
---|
2813 | * directory byte offsets and the NFS directory offset cookies |
---|
2814 | * 2 - pass the opaque directory offset cookies up into userland |
---|
2815 | * and let the libc functions deal with them, via the system call |
---|
2816 | * 3 - return them to userland in the "struct dirent", so future versions |
---|
2817 | * of libc can use them and do whatever is necessary to make things work |
---|
2818 | * above these rpc calls, in the meantime |
---|
2819 | * For now, I do #3 by "hiding" the directory offset cookies after the |
---|
2820 | * d_name field in struct dirent. This is space inside d_reclen that |
---|
2821 | * will be ignored by anything that doesn't know about them. |
---|
2822 | * The directory offset cookies are filled in as the last 8 bytes of |
---|
2823 | * each directory entry, after d_name. Someday, the userland libc |
---|
2824 | * functions may be able to use these. In the meantime, it satisfies |
---|
2825 | * OpenBSD's requirements for cookies being returned. |
---|
2826 | * If expects the directory offset cookie for the read to be in uio_offset |
---|
2827 | * and returns the one for the next entry after this directory block in |
---|
2828 | * there, as well. |
---|
2829 | */ |
---|
2830 | APPLESTATIC int |
---|
2831 | nfsrpc_readdir(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep, |
---|
2832 | struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, |
---|
2833 | int *eofp, void *stuff) |
---|
2834 | { |
---|
2835 | int len, left; |
---|
2836 | struct dirent *dp = NULL; |
---|
2837 | u_int32_t *tl; |
---|
2838 | nfsquad_t cookie, ncookie; |
---|
2839 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
2840 | struct nfsnode *dnp = VTONFS(vp); |
---|
2841 | struct nfsvattr nfsva; |
---|
2842 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
2843 | int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1; |
---|
2844 | int reqsize, tryformoredirs = 1, readsize, eof = 0, gotmnton = 0; |
---|
2845 | u_int64_t dotfileid, dotdotfileid = 0, fakefileno = UINT64_MAX; |
---|
2846 | char *cp; |
---|
2847 | nfsattrbit_t attrbits, dattrbits; |
---|
2848 | u_int32_t rderr, *tl2 = NULL; |
---|
2849 | size_t tresid; |
---|
2850 | |
---|
2851 | KASSERT(uiop->uio_iovcnt == 1 && |
---|
2852 | (uio_uio_resid(uiop) & (DIRBLKSIZ - 1)) == 0, |
---|
2853 | ("nfs readdirrpc bad uio")); |
---|
2854 | ncookie.lval[0] = ncookie.lval[1] = 0; |
---|
2855 | /* |
---|
2856 | * There is no point in reading a lot more than uio_resid, however |
---|
2857 | * adding one additional DIRBLKSIZ makes sense. Since uio_resid |
---|
2858 | * and nm_readdirsize are both exact multiples of DIRBLKSIZ, this |
---|
2859 | * will never make readsize > nm_readdirsize. |
---|
2860 | */ |
---|
2861 | readsize = nmp->nm_readdirsize; |
---|
2862 | if (readsize > uio_uio_resid(uiop)) |
---|
2863 | readsize = uio_uio_resid(uiop) + DIRBLKSIZ; |
---|
2864 | |
---|
2865 | *attrflagp = 0; |
---|
2866 | if (eofp) |
---|
2867 | *eofp = 0; |
---|
2868 | tresid = uio_uio_resid(uiop); |
---|
2869 | cookie.lval[0] = cookiep->nfsuquad[0]; |
---|
2870 | cookie.lval[1] = cookiep->nfsuquad[1]; |
---|
2871 | nd->nd_mrep = NULL; |
---|
2872 | |
---|
2873 | /* |
---|
2874 | * For NFSv4, first create the "." and ".." entries. |
---|
2875 | */ |
---|
2876 | if (NFSHASNFSV4(nmp)) { |
---|
2877 | reqsize = 6 * NFSX_UNSIGNED; |
---|
2878 | NFSGETATTR_ATTRBIT(&dattrbits); |
---|
2879 | NFSZERO_ATTRBIT(&attrbits); |
---|
2880 | NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID); |
---|
2881 | NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TYPE); |
---|
2882 | if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr, |
---|
2883 | NFSATTRBIT_MOUNTEDONFILEID)) { |
---|
2884 | NFSSETBIT_ATTRBIT(&attrbits, |
---|
2885 | NFSATTRBIT_MOUNTEDONFILEID); |
---|
2886 | gotmnton = 1; |
---|
2887 | } else { |
---|
2888 | /* |
---|
2889 | * Must fake it. Use the fileno, except when the |
---|
2890 | * fsid is != to that of the directory. For that |
---|
2891 | * case, generate a fake fileno that is not the same. |
---|
2892 | */ |
---|
2893 | NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID); |
---|
2894 | gotmnton = 0; |
---|
2895 | } |
---|
2896 | |
---|
2897 | /* |
---|
2898 | * Joy, oh joy. For V4 we get to hand craft '.' and '..'. |
---|
2899 | */ |
---|
2900 | if (uiop->uio_offset == 0) { |
---|
2901 | NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp); |
---|
2902 | NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
2903 | *tl++ = txdr_unsigned(NFSV4OP_GETFH); |
---|
2904 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
2905 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
2906 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
2907 | if (error) |
---|
2908 | return (error); |
---|
2909 | dotfileid = 0; /* Fake out the compiler. */ |
---|
2910 | if ((nd->nd_flag & ND_NOMOREDATA) == 0) { |
---|
2911 | error = nfsm_loadattr(nd, &nfsva); |
---|
2912 | if (error != 0) |
---|
2913 | goto nfsmout; |
---|
2914 | dotfileid = nfsva.na_fileid; |
---|
2915 | } |
---|
2916 | if (nd->nd_repstat == 0) { |
---|
2917 | NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); |
---|
2918 | len = fxdr_unsigned(int, *(tl + 4)); |
---|
2919 | if (len > 0 && len <= NFSX_V4FHMAX) |
---|
2920 | error = nfsm_advance(nd, NFSM_RNDUP(len), -1); |
---|
2921 | else |
---|
2922 | error = EPERM; |
---|
2923 | if (!error) { |
---|
2924 | NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); |
---|
2925 | nfsva.na_mntonfileno = UINT64_MAX; |
---|
2926 | error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, |
---|
2927 | NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, |
---|
2928 | NULL, NULL, NULL, p, cred); |
---|
2929 | if (error) { |
---|
2930 | dotdotfileid = dotfileid; |
---|
2931 | } else if (gotmnton) { |
---|
2932 | if (nfsva.na_mntonfileno != UINT64_MAX) |
---|
2933 | dotdotfileid = nfsva.na_mntonfileno; |
---|
2934 | else |
---|
2935 | dotdotfileid = nfsva.na_fileid; |
---|
2936 | } else if (nfsva.na_filesid[0] == |
---|
2937 | dnp->n_vattr.na_filesid[0] && |
---|
2938 | nfsva.na_filesid[1] == |
---|
2939 | dnp->n_vattr.na_filesid[1]) { |
---|
2940 | dotdotfileid = nfsva.na_fileid; |
---|
2941 | } else { |
---|
2942 | do { |
---|
2943 | fakefileno--; |
---|
2944 | } while (fakefileno == |
---|
2945 | nfsva.na_fileid); |
---|
2946 | dotdotfileid = fakefileno; |
---|
2947 | } |
---|
2948 | } |
---|
2949 | } else if (nd->nd_repstat == NFSERR_NOENT) { |
---|
2950 | /* |
---|
2951 | * Lookupp returns NFSERR_NOENT when we are |
---|
2952 | * at the root, so just use the current dir. |
---|
2953 | */ |
---|
2954 | nd->nd_repstat = 0; |
---|
2955 | dotdotfileid = dotfileid; |
---|
2956 | } else { |
---|
2957 | error = nd->nd_repstat; |
---|
2958 | } |
---|
2959 | mbuf_freem(nd->nd_mrep); |
---|
2960 | if (error) |
---|
2961 | return (error); |
---|
2962 | nd->nd_mrep = NULL; |
---|
2963 | dp = (struct dirent *)uio_iov_base(uiop); |
---|
2964 | #ifndef __rtems__ |
---|
2965 | dp->d_pad0 = dp->d_pad1 = 0; |
---|
2966 | #endif /* __rtems__ */ |
---|
2967 | dp->d_off = 0; |
---|
2968 | dp->d_type = DT_DIR; |
---|
2969 | dp->d_fileno = dotfileid; |
---|
2970 | dp->d_namlen = 1; |
---|
2971 | #ifndef __rtems__ |
---|
2972 | *((uint64_t *)dp->d_name) = 0; /* Zero pad it. */ |
---|
2973 | #else /* __rtems__ */ |
---|
2974 | dp->d_name[1] = '\0'; |
---|
2975 | #endif /* __rtems__ */ |
---|
2976 | dp->d_name[0] = '.'; |
---|
2977 | dp->d_reclen = _GENERIC_DIRSIZ(dp) + NFSX_HYPER; |
---|
2978 | /* |
---|
2979 | * Just make these offset cookie 0. |
---|
2980 | */ |
---|
2981 | #ifndef __rtems__ |
---|
2982 | tl = (u_int32_t *)&dp->d_name[8]; |
---|
2983 | *tl++ = 0; |
---|
2984 | *tl = 0; |
---|
2985 | #endif /* __rtems__ */ |
---|
2986 | blksiz += dp->d_reclen; |
---|
2987 | uio_uio_resid_add(uiop, -(dp->d_reclen)); |
---|
2988 | uiop->uio_offset += dp->d_reclen; |
---|
2989 | uio_iov_base_add(uiop, dp->d_reclen); |
---|
2990 | uio_iov_len_add(uiop, -(dp->d_reclen)); |
---|
2991 | dp = (struct dirent *)uio_iov_base(uiop); |
---|
2992 | #ifndef __rtems__ |
---|
2993 | dp->d_pad0 = dp->d_pad1 = 0; |
---|
2994 | #endif /* __rtems__ */ |
---|
2995 | dp->d_off = 0; |
---|
2996 | dp->d_type = DT_DIR; |
---|
2997 | dp->d_fileno = dotdotfileid; |
---|
2998 | dp->d_namlen = 2; |
---|
2999 | #ifndef __rtems__ |
---|
3000 | *((uint64_t *)dp->d_name) = 0; |
---|
3001 | #else __rtems__ |
---|
3002 | dp->d_name[2] = '\0'; |
---|
3003 | #endif /* __rtems__ */ |
---|
3004 | dp->d_name[0] = '.'; |
---|
3005 | dp->d_name[1] = '.'; |
---|
3006 | dp->d_reclen = _GENERIC_DIRSIZ(dp) + NFSX_HYPER; |
---|
3007 | /* |
---|
3008 | * Just make these offset cookie 0. |
---|
3009 | */ |
---|
3010 | #ifndef __rtems__ |
---|
3011 | tl = (u_int32_t *)&dp->d_name[8]; |
---|
3012 | *tl++ = 0; |
---|
3013 | *tl = 0; |
---|
3014 | #endif /* __rtems__ */ |
---|
3015 | blksiz += dp->d_reclen; |
---|
3016 | uio_uio_resid_add(uiop, -(dp->d_reclen)); |
---|
3017 | uiop->uio_offset += dp->d_reclen; |
---|
3018 | uio_iov_base_add(uiop, dp->d_reclen); |
---|
3019 | uio_iov_len_add(uiop, -(dp->d_reclen)); |
---|
3020 | } |
---|
3021 | NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_RDATTRERROR); |
---|
3022 | } else { |
---|
3023 | reqsize = 5 * NFSX_UNSIGNED; |
---|
3024 | } |
---|
3025 | |
---|
3026 | |
---|
3027 | /* |
---|
3028 | * Loop around doing readdir rpc's of size readsize. |
---|
3029 | * The stopping criteria is EOF or buffer full. |
---|
3030 | */ |
---|
3031 | while (more_dirs && bigenough) { |
---|
3032 | *attrflagp = 0; |
---|
3033 | NFSCL_REQSTART(nd, NFSPROC_READDIR, vp); |
---|
3034 | if (nd->nd_flag & ND_NFSV2) { |
---|
3035 | NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
3036 | *tl++ = cookie.lval[1]; |
---|
3037 | *tl = txdr_unsigned(readsize); |
---|
3038 | } else { |
---|
3039 | NFSM_BUILD(tl, u_int32_t *, reqsize); |
---|
3040 | *tl++ = cookie.lval[0]; |
---|
3041 | *tl++ = cookie.lval[1]; |
---|
3042 | if (cookie.qval == 0) { |
---|
3043 | *tl++ = 0; |
---|
3044 | *tl++ = 0; |
---|
3045 | } else { |
---|
3046 | NFSLOCKNODE(dnp); |
---|
3047 | *tl++ = dnp->n_cookieverf.nfsuquad[0]; |
---|
3048 | *tl++ = dnp->n_cookieverf.nfsuquad[1]; |
---|
3049 | NFSUNLOCKNODE(dnp); |
---|
3050 | } |
---|
3051 | if (nd->nd_flag & ND_NFSV4) { |
---|
3052 | *tl++ = txdr_unsigned(readsize); |
---|
3053 | *tl = txdr_unsigned(readsize); |
---|
3054 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
3055 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
3056 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
3057 | (void) nfsrv_putattrbit(nd, &dattrbits); |
---|
3058 | } else { |
---|
3059 | *tl = txdr_unsigned(readsize); |
---|
3060 | } |
---|
3061 | } |
---|
3062 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
3063 | if (error) |
---|
3064 | return (error); |
---|
3065 | if (!(nd->nd_flag & ND_NFSV2)) { |
---|
3066 | if (nd->nd_flag & ND_NFSV3) |
---|
3067 | error = nfscl_postop_attr(nd, nap, attrflagp, |
---|
3068 | stuff); |
---|
3069 | if (!nd->nd_repstat && !error) { |
---|
3070 | NFSM_DISSECT(tl, u_int32_t *, NFSX_HYPER); |
---|
3071 | NFSLOCKNODE(dnp); |
---|
3072 | dnp->n_cookieverf.nfsuquad[0] = *tl++; |
---|
3073 | dnp->n_cookieverf.nfsuquad[1] = *tl; |
---|
3074 | NFSUNLOCKNODE(dnp); |
---|
3075 | } |
---|
3076 | } |
---|
3077 | if (nd->nd_repstat || error) { |
---|
3078 | if (!error) |
---|
3079 | error = nd->nd_repstat; |
---|
3080 | goto nfsmout; |
---|
3081 | } |
---|
3082 | NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
3083 | more_dirs = fxdr_unsigned(int, *tl); |
---|
3084 | if (!more_dirs) |
---|
3085 | tryformoredirs = 0; |
---|
3086 | |
---|
3087 | /* loop through the dir entries, doctoring them to 4bsd form */ |
---|
3088 | while (more_dirs && bigenough) { |
---|
3089 | if (nd->nd_flag & ND_NFSV4) { |
---|
3090 | NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); |
---|
3091 | ncookie.lval[0] = *tl++; |
---|
3092 | ncookie.lval[1] = *tl++; |
---|
3093 | len = fxdr_unsigned(int, *tl); |
---|
3094 | } else if (nd->nd_flag & ND_NFSV3) { |
---|
3095 | NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); |
---|
3096 | nfsva.na_fileid = fxdr_hyper(tl); |
---|
3097 | tl += 2; |
---|
3098 | len = fxdr_unsigned(int, *tl); |
---|
3099 | } else { |
---|
3100 | NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); |
---|
3101 | nfsva.na_fileid = fxdr_unsigned(uint64_t, |
---|
3102 | *tl++); |
---|
3103 | len = fxdr_unsigned(int, *tl); |
---|
3104 | } |
---|
3105 | if (len <= 0 || len > NFS_MAXNAMLEN) { |
---|
3106 | error = EBADRPC; |
---|
3107 | goto nfsmout; |
---|
3108 | } |
---|
3109 | tlen = roundup2(len, 8); |
---|
3110 | if (tlen == len) |
---|
3111 | tlen += 8; /* To ensure null termination. */ |
---|
3112 | left = DIRBLKSIZ - blksiz; |
---|
3113 | if (_GENERIC_DIRLEN(len) + NFSX_HYPER > left) { |
---|
3114 | NFSBZERO(uio_iov_base(uiop), left); |
---|
3115 | dp->d_reclen += left; |
---|
3116 | uio_iov_base_add(uiop, left); |
---|
3117 | uio_iov_len_add(uiop, -(left)); |
---|
3118 | uio_uio_resid_add(uiop, -(left)); |
---|
3119 | uiop->uio_offset += left; |
---|
3120 | blksiz = 0; |
---|
3121 | } |
---|
3122 | if (_GENERIC_DIRLEN(len) + NFSX_HYPER > |
---|
3123 | uio_uio_resid(uiop)) |
---|
3124 | bigenough = 0; |
---|
3125 | if (bigenough) { |
---|
3126 | dp = (struct dirent *)uio_iov_base(uiop); |
---|
3127 | #ifndef __rtems__ |
---|
3128 | dp->d_pad0 = dp->d_pad1 = 0; |
---|
3129 | #endif /* __rtems__ */ |
---|
3130 | dp->d_off = 0; |
---|
3131 | dp->d_namlen = len; |
---|
3132 | dp->d_reclen = _GENERIC_DIRLEN(len) + |
---|
3133 | NFSX_HYPER; |
---|
3134 | dp->d_type = DT_UNKNOWN; |
---|
3135 | blksiz += dp->d_reclen; |
---|
3136 | if (blksiz == DIRBLKSIZ) |
---|
3137 | blksiz = 0; |
---|
3138 | uio_uio_resid_add(uiop, -(DIRHDSIZ)); |
---|
3139 | uiop->uio_offset += DIRHDSIZ; |
---|
3140 | uio_iov_base_add(uiop, DIRHDSIZ); |
---|
3141 | uio_iov_len_add(uiop, -(DIRHDSIZ)); |
---|
3142 | error = nfsm_mbufuio(nd, uiop, len); |
---|
3143 | if (error) |
---|
3144 | goto nfsmout; |
---|
3145 | cp = uio_iov_base(uiop); |
---|
3146 | tlen -= len; |
---|
3147 | NFSBZERO(cp, tlen); |
---|
3148 | cp += tlen; /* points to cookie storage */ |
---|
3149 | tl2 = (u_int32_t *)cp; |
---|
3150 | #ifdef __rtems__ |
---|
3151 | tlen = dp->d_reclen - |
---|
3152 | (((char*) uio_iov_base(uiop) - (char*) dp) + NFSX_HYPER); |
---|
3153 | #endif /* __rtems__ */ |
---|
3154 | uio_iov_base_add(uiop, (tlen + NFSX_HYPER)); |
---|
3155 | uio_iov_len_add(uiop, -(tlen + NFSX_HYPER)); |
---|
3156 | uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER)); |
---|
3157 | uiop->uio_offset += (tlen + NFSX_HYPER); |
---|
3158 | } else { |
---|
3159 | error = nfsm_advance(nd, NFSM_RNDUP(len), -1); |
---|
3160 | if (error) |
---|
3161 | goto nfsmout; |
---|
3162 | } |
---|
3163 | if (nd->nd_flag & ND_NFSV4) { |
---|
3164 | rderr = 0; |
---|
3165 | nfsva.na_mntonfileno = UINT64_MAX; |
---|
3166 | error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, |
---|
3167 | NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, |
---|
3168 | NULL, NULL, &rderr, p, cred); |
---|
3169 | if (error) |
---|
3170 | goto nfsmout; |
---|
3171 | NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
3172 | } else if (nd->nd_flag & ND_NFSV3) { |
---|
3173 | NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); |
---|
3174 | ncookie.lval[0] = *tl++; |
---|
3175 | ncookie.lval[1] = *tl++; |
---|
3176 | } else { |
---|
3177 | NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); |
---|
3178 | ncookie.lval[0] = 0; |
---|
3179 | ncookie.lval[1] = *tl++; |
---|
3180 | } |
---|
3181 | if (bigenough) { |
---|
3182 | if (nd->nd_flag & ND_NFSV4) { |
---|
3183 | if (rderr) { |
---|
3184 | dp->d_fileno = 0; |
---|
3185 | } else { |
---|
3186 | if (gotmnton) { |
---|
3187 | if (nfsva.na_mntonfileno != UINT64_MAX) |
---|
3188 | dp->d_fileno = nfsva.na_mntonfileno; |
---|
3189 | else |
---|
3190 | dp->d_fileno = nfsva.na_fileid; |
---|
3191 | } else if (nfsva.na_filesid[0] == |
---|
3192 | dnp->n_vattr.na_filesid[0] && |
---|
3193 | nfsva.na_filesid[1] == |
---|
3194 | dnp->n_vattr.na_filesid[1]) { |
---|
3195 | dp->d_fileno = nfsva.na_fileid; |
---|
3196 | } else { |
---|
3197 | do { |
---|
3198 | fakefileno--; |
---|
3199 | } while (fakefileno == |
---|
3200 | nfsva.na_fileid); |
---|
3201 | dp->d_fileno = fakefileno; |
---|
3202 | } |
---|
3203 | dp->d_type = vtonfs_dtype(nfsva.na_type); |
---|
3204 | } |
---|
3205 | } else { |
---|
3206 | dp->d_fileno = nfsva.na_fileid; |
---|
3207 | } |
---|
3208 | #ifndef __rtems__ |
---|
3209 | *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] = |
---|
3210 | ncookie.lval[0]; |
---|
3211 | #else /* __rtems__ */ |
---|
3212 | memcpy(tl2, &ncookie.lval[0], sizeof(*tl2)); |
---|
3213 | tl2++; |
---|
3214 | cookiep->nfsuquad[0] = cookie.lval[0] = |
---|
3215 | ncookie.lval[0]; |
---|
3216 | #endif /* __rtems__ */ |
---|
3217 | #ifndef __rtems__ |
---|
3218 | *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] = |
---|
3219 | ncookie.lval[1]; |
---|
3220 | #else /* __rtems__ */ |
---|
3221 | memcpy(tl2, &ncookie.lval[1], sizeof(*tl2)); |
---|
3222 | cookiep->nfsuquad[1] = cookie.lval[1] = |
---|
3223 | ncookie.lval[1]; |
---|
3224 | #endif /* __rtems__ */ |
---|
3225 | } |
---|
3226 | more_dirs = fxdr_unsigned(int, *tl); |
---|
3227 | } |
---|
3228 | /* |
---|
3229 | * If at end of rpc data, get the eof boolean |
---|
3230 | */ |
---|
3231 | if (!more_dirs) { |
---|
3232 | NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
3233 | eof = fxdr_unsigned(int, *tl); |
---|
3234 | if (tryformoredirs) |
---|
3235 | more_dirs = !eof; |
---|
3236 | if (nd->nd_flag & ND_NFSV4) { |
---|
3237 | error = nfscl_postop_attr(nd, nap, attrflagp, |
---|
3238 | stuff); |
---|
3239 | if (error) |
---|
3240 | goto nfsmout; |
---|
3241 | } |
---|
3242 | } |
---|
3243 | mbuf_freem(nd->nd_mrep); |
---|
3244 | nd->nd_mrep = NULL; |
---|
3245 | } |
---|
3246 | /* |
---|
3247 | * Fill last record, iff any, out to a multiple of DIRBLKSIZ |
---|
3248 | * by increasing d_reclen for the last record. |
---|
3249 | */ |
---|
3250 | if (blksiz > 0) { |
---|
3251 | left = DIRBLKSIZ - blksiz; |
---|
3252 | NFSBZERO(uio_iov_base(uiop), left); |
---|
3253 | dp->d_reclen += left; |
---|
3254 | uio_iov_base_add(uiop, left); |
---|
3255 | uio_iov_len_add(uiop, -(left)); |
---|
3256 | uio_uio_resid_add(uiop, -(left)); |
---|
3257 | uiop->uio_offset += left; |
---|
3258 | } |
---|
3259 | |
---|
3260 | /* |
---|
3261 | * If returning no data, assume end of file. |
---|
3262 | * If not bigenough, return not end of file, since you aren't |
---|
3263 | * returning all the data |
---|
3264 | * Otherwise, return the eof flag from the server. |
---|
3265 | */ |
---|
3266 | if (eofp) { |
---|
3267 | if (tresid == ((size_t)(uio_uio_resid(uiop)))) |
---|
3268 | *eofp = 1; |
---|
3269 | else if (!bigenough) |
---|
3270 | *eofp = 0; |
---|
3271 | else |
---|
3272 | *eofp = eof; |
---|
3273 | } |
---|
3274 | |
---|
3275 | /* |
---|
3276 | * Add extra empty records to any remaining DIRBLKSIZ chunks. |
---|
3277 | */ |
---|
3278 | while (uio_uio_resid(uiop) > 0 && uio_uio_resid(uiop) != tresid) { |
---|
3279 | dp = (struct dirent *)uio_iov_base(uiop); |
---|
3280 | NFSBZERO(dp, DIRBLKSIZ); |
---|
3281 | dp->d_type = DT_UNKNOWN; |
---|
3282 | #ifndef __rtems__ |
---|
3283 | tl = (u_int32_t *)&dp->d_name[4]; |
---|
3284 | *tl++ = cookie.lval[0]; |
---|
3285 | *tl = cookie.lval[1]; |
---|
3286 | #else /* __rtems__ */ |
---|
3287 | memcpy(&dp->d_name[8], &cookie.lval[0], sizeof(u_int32_t)); |
---|
3288 | memcpy(&dp->d_name[8 + sizeof(u_int32_t)], &cookie.lval[1], sizeof(u_int32_t)); |
---|
3289 | #endif /* __rtems__ */ |
---|
3290 | dp->d_reclen = DIRBLKSIZ; |
---|
3291 | uio_iov_base_add(uiop, DIRBLKSIZ); |
---|
3292 | uio_iov_len_add(uiop, -(DIRBLKSIZ)); |
---|
3293 | uio_uio_resid_add(uiop, -(DIRBLKSIZ)); |
---|
3294 | uiop->uio_offset += DIRBLKSIZ; |
---|
3295 | } |
---|
3296 | |
---|
3297 | nfsmout: |
---|
3298 | if (nd->nd_mrep != NULL) |
---|
3299 | mbuf_freem(nd->nd_mrep); |
---|
3300 | return (error); |
---|
3301 | } |
---|
3302 | |
---|
3303 | #ifndef APPLE |
---|
3304 | /* |
---|
3305 | * NFS V3 readdir plus RPC. Used in place of nfsrpc_readdir(). |
---|
3306 | * (Also used for NFS V4 when mount flag set.) |
---|
3307 | * (ditto above w.r.t. multiple of DIRBLKSIZ, etc.) |
---|
3308 | */ |
---|
3309 | APPLESTATIC int |
---|
3310 | nfsrpc_readdirplus(vnode_t vp, struct uio *uiop, nfsuint64 *cookiep, |
---|
3311 | struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, |
---|
3312 | int *eofp, void *stuff) |
---|
3313 | { |
---|
3314 | int len, left; |
---|
3315 | struct dirent *dp = NULL; |
---|
3316 | u_int32_t *tl; |
---|
3317 | vnode_t newvp = NULLVP; |
---|
3318 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
3319 | struct nameidata nami, *ndp = &nami; |
---|
3320 | struct componentname *cnp = &ndp->ni_cnd; |
---|
3321 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
3322 | struct nfsnode *dnp = VTONFS(vp), *np; |
---|
3323 | struct nfsvattr nfsva; |
---|
3324 | struct nfsfh *nfhp; |
---|
3325 | nfsquad_t cookie, ncookie; |
---|
3326 | int error = 0, tlen, more_dirs = 1, blksiz = 0, bigenough = 1; |
---|
3327 | int attrflag, tryformoredirs = 1, eof = 0, gotmnton = 0; |
---|
3328 | int isdotdot = 0, unlocknewvp = 0; |
---|
3329 | u_int64_t dotfileid, dotdotfileid = 0, fakefileno = UINT64_MAX; |
---|
3330 | u_int64_t fileno = 0; |
---|
3331 | char *cp; |
---|
3332 | nfsattrbit_t attrbits, dattrbits; |
---|
3333 | size_t tresid; |
---|
3334 | u_int32_t *tl2 = NULL, rderr; |
---|
3335 | struct timespec dctime; |
---|
3336 | |
---|
3337 | KASSERT(uiop->uio_iovcnt == 1 && |
---|
3338 | (uio_uio_resid(uiop) & (DIRBLKSIZ - 1)) == 0, |
---|
3339 | ("nfs readdirplusrpc bad uio")); |
---|
3340 | ncookie.lval[0] = ncookie.lval[1] = 0; |
---|
3341 | timespecclear(&dctime); |
---|
3342 | *attrflagp = 0; |
---|
3343 | if (eofp != NULL) |
---|
3344 | *eofp = 0; |
---|
3345 | ndp->ni_dvp = vp; |
---|
3346 | nd->nd_mrep = NULL; |
---|
3347 | cookie.lval[0] = cookiep->nfsuquad[0]; |
---|
3348 | cookie.lval[1] = cookiep->nfsuquad[1]; |
---|
3349 | tresid = uio_uio_resid(uiop); |
---|
3350 | |
---|
3351 | /* |
---|
3352 | * For NFSv4, first create the "." and ".." entries. |
---|
3353 | */ |
---|
3354 | if (NFSHASNFSV4(nmp)) { |
---|
3355 | NFSGETATTR_ATTRBIT(&dattrbits); |
---|
3356 | NFSZERO_ATTRBIT(&attrbits); |
---|
3357 | NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FILEID); |
---|
3358 | if (NFSISSET_ATTRBIT(&dnp->n_vattr.na_suppattr, |
---|
3359 | NFSATTRBIT_MOUNTEDONFILEID)) { |
---|
3360 | NFSSETBIT_ATTRBIT(&attrbits, |
---|
3361 | NFSATTRBIT_MOUNTEDONFILEID); |
---|
3362 | gotmnton = 1; |
---|
3363 | } else { |
---|
3364 | /* |
---|
3365 | * Must fake it. Use the fileno, except when the |
---|
3366 | * fsid is != to that of the directory. For that |
---|
3367 | * case, generate a fake fileno that is not the same. |
---|
3368 | */ |
---|
3369 | NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_FSID); |
---|
3370 | gotmnton = 0; |
---|
3371 | } |
---|
3372 | |
---|
3373 | /* |
---|
3374 | * Joy, oh joy. For V4 we get to hand craft '.' and '..'. |
---|
3375 | */ |
---|
3376 | if (uiop->uio_offset == 0) { |
---|
3377 | NFSCL_REQSTART(nd, NFSPROC_LOOKUPP, vp); |
---|
3378 | NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
3379 | *tl++ = txdr_unsigned(NFSV4OP_GETFH); |
---|
3380 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
3381 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
3382 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
3383 | if (error) |
---|
3384 | return (error); |
---|
3385 | dotfileid = 0; /* Fake out the compiler. */ |
---|
3386 | if ((nd->nd_flag & ND_NOMOREDATA) == 0) { |
---|
3387 | error = nfsm_loadattr(nd, &nfsva); |
---|
3388 | if (error != 0) |
---|
3389 | goto nfsmout; |
---|
3390 | dctime = nfsva.na_ctime; |
---|
3391 | dotfileid = nfsva.na_fileid; |
---|
3392 | } |
---|
3393 | if (nd->nd_repstat == 0) { |
---|
3394 | NFSM_DISSECT(tl, u_int32_t *, 5 * NFSX_UNSIGNED); |
---|
3395 | len = fxdr_unsigned(int, *(tl + 4)); |
---|
3396 | if (len > 0 && len <= NFSX_V4FHMAX) |
---|
3397 | error = nfsm_advance(nd, NFSM_RNDUP(len), -1); |
---|
3398 | else |
---|
3399 | error = EPERM; |
---|
3400 | if (!error) { |
---|
3401 | NFSM_DISSECT(tl, u_int32_t *, 2*NFSX_UNSIGNED); |
---|
3402 | nfsva.na_mntonfileno = UINT64_MAX; |
---|
3403 | error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, |
---|
3404 | NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, |
---|
3405 | NULL, NULL, NULL, p, cred); |
---|
3406 | if (error) { |
---|
3407 | dotdotfileid = dotfileid; |
---|
3408 | } else if (gotmnton) { |
---|
3409 | if (nfsva.na_mntonfileno != UINT64_MAX) |
---|
3410 | dotdotfileid = nfsva.na_mntonfileno; |
---|
3411 | else |
---|
3412 | dotdotfileid = nfsva.na_fileid; |
---|
3413 | } else if (nfsva.na_filesid[0] == |
---|
3414 | dnp->n_vattr.na_filesid[0] && |
---|
3415 | nfsva.na_filesid[1] == |
---|
3416 | dnp->n_vattr.na_filesid[1]) { |
---|
3417 | dotdotfileid = nfsva.na_fileid; |
---|
3418 | } else { |
---|
3419 | do { |
---|
3420 | fakefileno--; |
---|
3421 | } while (fakefileno == |
---|
3422 | nfsva.na_fileid); |
---|
3423 | dotdotfileid = fakefileno; |
---|
3424 | } |
---|
3425 | } |
---|
3426 | } else if (nd->nd_repstat == NFSERR_NOENT) { |
---|
3427 | /* |
---|
3428 | * Lookupp returns NFSERR_NOENT when we are |
---|
3429 | * at the root, so just use the current dir. |
---|
3430 | */ |
---|
3431 | nd->nd_repstat = 0; |
---|
3432 | dotdotfileid = dotfileid; |
---|
3433 | } else { |
---|
3434 | error = nd->nd_repstat; |
---|
3435 | } |
---|
3436 | mbuf_freem(nd->nd_mrep); |
---|
3437 | if (error) |
---|
3438 | return (error); |
---|
3439 | nd->nd_mrep = NULL; |
---|
3440 | dp = (struct dirent *)uio_iov_base(uiop); |
---|
3441 | #ifndef __rtems__ |
---|
3442 | dp->d_pad0 = dp->d_pad1 = 0; |
---|
3443 | #endif /* __rtems__ */ |
---|
3444 | dp->d_off = 0; |
---|
3445 | dp->d_type = DT_DIR; |
---|
3446 | dp->d_fileno = dotfileid; |
---|
3447 | dp->d_namlen = 1; |
---|
3448 | #ifndef __rtems__ |
---|
3449 | *((uint64_t *)dp->d_name) = 0; /* Zero pad it. */ |
---|
3450 | #else /* __rtems__ */ |
---|
3451 | dp->d_name[0] = dp->d_name[1] = dp->d_name[2] = dp->d_name[3] = '\0'; |
---|
3452 | #endif /* __rtems__ */ |
---|
3453 | dp->d_name[0] = '.'; |
---|
3454 | dp->d_reclen = _GENERIC_DIRSIZ(dp) + NFSX_HYPER; |
---|
3455 | /* |
---|
3456 | * Just make these offset cookie 0. |
---|
3457 | */ |
---|
3458 | #ifndef __rtems__ |
---|
3459 | tl = (u_int32_t *)&dp->d_name[8]; |
---|
3460 | *tl++ = 0; |
---|
3461 | *tl = 0; |
---|
3462 | #else /* __rtems__ */ |
---|
3463 | memset(&dp->d_name[8], 0, 2 * sizeof(u_int32_t)); |
---|
3464 | #endif /* __rtems__ */ |
---|
3465 | blksiz += dp->d_reclen; |
---|
3466 | uio_uio_resid_add(uiop, -(dp->d_reclen)); |
---|
3467 | uiop->uio_offset += dp->d_reclen; |
---|
3468 | uio_iov_base_add(uiop, dp->d_reclen); |
---|
3469 | uio_iov_len_add(uiop, -(dp->d_reclen)); |
---|
3470 | dp = (struct dirent *)uio_iov_base(uiop); |
---|
3471 | #ifndef __rtems__ |
---|
3472 | dp->d_pad0 = dp->d_pad1 = 0; |
---|
3473 | #endif /* __rtems__ */ |
---|
3474 | dp->d_off = 0; |
---|
3475 | dp->d_type = DT_DIR; |
---|
3476 | dp->d_fileno = dotdotfileid; |
---|
3477 | dp->d_namlen = 2; |
---|
3478 | #ifndef __rtems__ |
---|
3479 | *((uint64_t *)dp->d_name) = 0; |
---|
3480 | #else /* __rtems__ */ |
---|
3481 | dp->d_name[0] = dp->d_name[1] = dp->d_name[2] = dp->d_name[3] = '\0'; |
---|
3482 | #endif /* __rtems__ */ |
---|
3483 | dp->d_name[0] = '.'; |
---|
3484 | dp->d_name[1] = '.'; |
---|
3485 | dp->d_reclen = _GENERIC_DIRSIZ(dp) + NFSX_HYPER; |
---|
3486 | /* |
---|
3487 | * Just make these offset cookie 0. |
---|
3488 | */ |
---|
3489 | #ifndef __rtems__ |
---|
3490 | tl = (u_int32_t *)&dp->d_name[8]; |
---|
3491 | *tl++ = 0; |
---|
3492 | *tl = 0; |
---|
3493 | #else /* __rtems__ */ |
---|
3494 | memset(&dp->d_name[8], 0, 2 * sizeof(u_int32_t)); |
---|
3495 | #endif /* __rtems__ */ |
---|
3496 | blksiz += dp->d_reclen; |
---|
3497 | uio_uio_resid_add(uiop, -(dp->d_reclen)); |
---|
3498 | uiop->uio_offset += dp->d_reclen; |
---|
3499 | uio_iov_base_add(uiop, dp->d_reclen); |
---|
3500 | uio_iov_len_add(uiop, -(dp->d_reclen)); |
---|
3501 | } |
---|
3502 | NFSREADDIRPLUS_ATTRBIT(&attrbits); |
---|
3503 | if (gotmnton) |
---|
3504 | NFSSETBIT_ATTRBIT(&attrbits, |
---|
3505 | NFSATTRBIT_MOUNTEDONFILEID); |
---|
3506 | } |
---|
3507 | |
---|
3508 | /* |
---|
3509 | * Loop around doing readdir rpc's of size nm_readdirsize. |
---|
3510 | * The stopping criteria is EOF or buffer full. |
---|
3511 | */ |
---|
3512 | while (more_dirs && bigenough) { |
---|
3513 | *attrflagp = 0; |
---|
3514 | NFSCL_REQSTART(nd, NFSPROC_READDIRPLUS, vp); |
---|
3515 | NFSM_BUILD(tl, u_int32_t *, 6 * NFSX_UNSIGNED); |
---|
3516 | *tl++ = cookie.lval[0]; |
---|
3517 | *tl++ = cookie.lval[1]; |
---|
3518 | if (cookie.qval == 0) { |
---|
3519 | *tl++ = 0; |
---|
3520 | *tl++ = 0; |
---|
3521 | } else { |
---|
3522 | NFSLOCKNODE(dnp); |
---|
3523 | *tl++ = dnp->n_cookieverf.nfsuquad[0]; |
---|
3524 | *tl++ = dnp->n_cookieverf.nfsuquad[1]; |
---|
3525 | NFSUNLOCKNODE(dnp); |
---|
3526 | } |
---|
3527 | *tl++ = txdr_unsigned(nmp->nm_readdirsize); |
---|
3528 | *tl = txdr_unsigned(nmp->nm_readdirsize); |
---|
3529 | if (nd->nd_flag & ND_NFSV4) { |
---|
3530 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
3531 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
3532 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
3533 | (void) nfsrv_putattrbit(nd, &dattrbits); |
---|
3534 | } |
---|
3535 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
3536 | if (error) |
---|
3537 | return (error); |
---|
3538 | if (nd->nd_flag & ND_NFSV3) |
---|
3539 | error = nfscl_postop_attr(nd, nap, attrflagp, stuff); |
---|
3540 | if (nd->nd_repstat || error) { |
---|
3541 | if (!error) |
---|
3542 | error = nd->nd_repstat; |
---|
3543 | goto nfsmout; |
---|
3544 | } |
---|
3545 | if ((nd->nd_flag & ND_NFSV3) != 0 && *attrflagp != 0) |
---|
3546 | dctime = nap->na_ctime; |
---|
3547 | NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); |
---|
3548 | NFSLOCKNODE(dnp); |
---|
3549 | dnp->n_cookieverf.nfsuquad[0] = *tl++; |
---|
3550 | dnp->n_cookieverf.nfsuquad[1] = *tl++; |
---|
3551 | NFSUNLOCKNODE(dnp); |
---|
3552 | more_dirs = fxdr_unsigned(int, *tl); |
---|
3553 | if (!more_dirs) |
---|
3554 | tryformoredirs = 0; |
---|
3555 | |
---|
3556 | /* loop through the dir entries, doctoring them to 4bsd form */ |
---|
3557 | while (more_dirs && bigenough) { |
---|
3558 | NFSM_DISSECT(tl, u_int32_t *, 3 * NFSX_UNSIGNED); |
---|
3559 | if (nd->nd_flag & ND_NFSV4) { |
---|
3560 | ncookie.lval[0] = *tl++; |
---|
3561 | ncookie.lval[1] = *tl++; |
---|
3562 | } else { |
---|
3563 | fileno = fxdr_hyper(tl); |
---|
3564 | tl += 2; |
---|
3565 | } |
---|
3566 | len = fxdr_unsigned(int, *tl); |
---|
3567 | if (len <= 0 || len > NFS_MAXNAMLEN) { |
---|
3568 | error = EBADRPC; |
---|
3569 | goto nfsmout; |
---|
3570 | } |
---|
3571 | tlen = roundup2(len, 8); |
---|
3572 | if (tlen == len) |
---|
3573 | tlen += 8; /* To ensure null termination. */ |
---|
3574 | left = DIRBLKSIZ - blksiz; |
---|
3575 | if (_GENERIC_DIRLEN(len) + NFSX_HYPER > left) { |
---|
3576 | NFSBZERO(uio_iov_base(uiop), left); |
---|
3577 | dp->d_reclen += left; |
---|
3578 | uio_iov_base_add(uiop, left); |
---|
3579 | uio_iov_len_add(uiop, -(left)); |
---|
3580 | uio_uio_resid_add(uiop, -(left)); |
---|
3581 | uiop->uio_offset += left; |
---|
3582 | blksiz = 0; |
---|
3583 | } |
---|
3584 | if (_GENERIC_DIRLEN(len) + NFSX_HYPER > |
---|
3585 | uio_uio_resid(uiop)) |
---|
3586 | bigenough = 0; |
---|
3587 | if (bigenough) { |
---|
3588 | dp = (struct dirent *)uio_iov_base(uiop); |
---|
3589 | #ifndef __rtems__ |
---|
3590 | dp->d_pad0 = dp->d_pad1 = 0; |
---|
3591 | #endif /* __rtems__ */ |
---|
3592 | dp->d_off = 0; |
---|
3593 | dp->d_namlen = len; |
---|
3594 | dp->d_reclen = _GENERIC_DIRLEN(len) + |
---|
3595 | NFSX_HYPER; |
---|
3596 | dp->d_type = DT_UNKNOWN; |
---|
3597 | blksiz += dp->d_reclen; |
---|
3598 | if (blksiz == DIRBLKSIZ) |
---|
3599 | blksiz = 0; |
---|
3600 | uio_uio_resid_add(uiop, -(DIRHDSIZ)); |
---|
3601 | uiop->uio_offset += DIRHDSIZ; |
---|
3602 | uio_iov_base_add(uiop, DIRHDSIZ); |
---|
3603 | uio_iov_len_add(uiop, -(DIRHDSIZ)); |
---|
3604 | cnp->cn_nameptr = uio_iov_base(uiop); |
---|
3605 | cnp->cn_namelen = len; |
---|
3606 | NFSCNHASHZERO(cnp); |
---|
3607 | error = nfsm_mbufuio(nd, uiop, len); |
---|
3608 | if (error) |
---|
3609 | goto nfsmout; |
---|
3610 | cp = uio_iov_base(uiop); |
---|
3611 | tlen -= len; |
---|
3612 | NFSBZERO(cp, tlen); |
---|
3613 | cp += tlen; /* points to cookie storage */ |
---|
3614 | tl2 = (u_int32_t *)cp; |
---|
3615 | if (len == 2 && cnp->cn_nameptr[0] == '.' && |
---|
3616 | cnp->cn_nameptr[1] == '.') |
---|
3617 | isdotdot = 1; |
---|
3618 | else |
---|
3619 | isdotdot = 0; |
---|
3620 | uio_iov_base_add(uiop, (tlen + NFSX_HYPER)); |
---|
3621 | uio_iov_len_add(uiop, -(tlen + NFSX_HYPER)); |
---|
3622 | uio_uio_resid_add(uiop, -(tlen + NFSX_HYPER)); |
---|
3623 | uiop->uio_offset += (tlen + NFSX_HYPER); |
---|
3624 | } else { |
---|
3625 | error = nfsm_advance(nd, NFSM_RNDUP(len), -1); |
---|
3626 | if (error) |
---|
3627 | goto nfsmout; |
---|
3628 | } |
---|
3629 | nfhp = NULL; |
---|
3630 | if (nd->nd_flag & ND_NFSV3) { |
---|
3631 | NFSM_DISSECT(tl, u_int32_t *, 3*NFSX_UNSIGNED); |
---|
3632 | ncookie.lval[0] = *tl++; |
---|
3633 | ncookie.lval[1] = *tl++; |
---|
3634 | attrflag = fxdr_unsigned(int, *tl); |
---|
3635 | if (attrflag) { |
---|
3636 | error = nfsm_loadattr(nd, &nfsva); |
---|
3637 | if (error) |
---|
3638 | goto nfsmout; |
---|
3639 | } |
---|
3640 | NFSM_DISSECT(tl,u_int32_t *,NFSX_UNSIGNED); |
---|
3641 | if (*tl) { |
---|
3642 | error = nfsm_getfh(nd, &nfhp); |
---|
3643 | if (error) |
---|
3644 | goto nfsmout; |
---|
3645 | } |
---|
3646 | if (!attrflag && nfhp != NULL) { |
---|
3647 | free(nfhp, M_NFSFH); |
---|
3648 | nfhp = NULL; |
---|
3649 | } |
---|
3650 | } else { |
---|
3651 | rderr = 0; |
---|
3652 | nfsva.na_mntonfileno = 0xffffffff; |
---|
3653 | error = nfsv4_loadattr(nd, NULL, &nfsva, &nfhp, |
---|
3654 | NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, |
---|
3655 | NULL, NULL, &rderr, p, cred); |
---|
3656 | if (error) |
---|
3657 | goto nfsmout; |
---|
3658 | } |
---|
3659 | |
---|
3660 | if (bigenough) { |
---|
3661 | if (nd->nd_flag & ND_NFSV4) { |
---|
3662 | if (rderr) { |
---|
3663 | dp->d_fileno = 0; |
---|
3664 | } else if (gotmnton) { |
---|
3665 | if (nfsva.na_mntonfileno != 0xffffffff) |
---|
3666 | dp->d_fileno = nfsva.na_mntonfileno; |
---|
3667 | else |
---|
3668 | dp->d_fileno = nfsva.na_fileid; |
---|
3669 | } else if (nfsva.na_filesid[0] == |
---|
3670 | dnp->n_vattr.na_filesid[0] && |
---|
3671 | nfsva.na_filesid[1] == |
---|
3672 | dnp->n_vattr.na_filesid[1]) { |
---|
3673 | dp->d_fileno = nfsva.na_fileid; |
---|
3674 | } else { |
---|
3675 | do { |
---|
3676 | fakefileno--; |
---|
3677 | } while (fakefileno == |
---|
3678 | nfsva.na_fileid); |
---|
3679 | dp->d_fileno = fakefileno; |
---|
3680 | } |
---|
3681 | } else { |
---|
3682 | dp->d_fileno = fileno; |
---|
3683 | } |
---|
3684 | *tl2++ = cookiep->nfsuquad[0] = cookie.lval[0] = |
---|
3685 | ncookie.lval[0]; |
---|
3686 | *tl2 = cookiep->nfsuquad[1] = cookie.lval[1] = |
---|
3687 | ncookie.lval[1]; |
---|
3688 | |
---|
3689 | if (nfhp != NULL) { |
---|
3690 | if (NFSRV_CMPFH(nfhp->nfh_fh, nfhp->nfh_len, |
---|
3691 | dnp->n_fhp->nfh_fh, dnp->n_fhp->nfh_len)) { |
---|
3692 | VREF(vp); |
---|
3693 | newvp = vp; |
---|
3694 | unlocknewvp = 0; |
---|
3695 | free(nfhp, M_NFSFH); |
---|
3696 | np = dnp; |
---|
3697 | } else if (isdotdot != 0) { |
---|
3698 | /* |
---|
3699 | * Skip doing a nfscl_nget() call for "..". |
---|
3700 | * There's a race between acquiring the nfs |
---|
3701 | * node here and lookups that look for the |
---|
3702 | * directory being read (in the parent). |
---|
3703 | * It would try to get a lock on ".." here, |
---|
3704 | * owning the lock on the directory being |
---|
3705 | * read. Lookup will hold the lock on ".." |
---|
3706 | * and try to acquire the lock on the |
---|
3707 | * directory being read. |
---|
3708 | * If the directory is unlocked/relocked, |
---|
3709 | * then there is a LOR with the buflock |
---|
3710 | * vp is relocked. |
---|
3711 | */ |
---|
3712 | free(nfhp, M_NFSFH); |
---|
3713 | } else { |
---|
3714 | error = nfscl_nget(vnode_mount(vp), vp, |
---|
3715 | nfhp, cnp, p, &np, NULL, LK_EXCLUSIVE); |
---|
3716 | if (!error) { |
---|
3717 | newvp = NFSTOV(np); |
---|
3718 | unlocknewvp = 1; |
---|
3719 | } |
---|
3720 | } |
---|
3721 | nfhp = NULL; |
---|
3722 | if (newvp != NULLVP) { |
---|
3723 | error = nfscl_loadattrcache(&newvp, |
---|
3724 | &nfsva, NULL, NULL, 0, 0); |
---|
3725 | if (error) { |
---|
3726 | if (unlocknewvp) |
---|
3727 | vput(newvp); |
---|
3728 | else |
---|
3729 | vrele(newvp); |
---|
3730 | goto nfsmout; |
---|
3731 | } |
---|
3732 | dp->d_type = |
---|
3733 | vtonfs_dtype(np->n_vattr.na_type); |
---|
3734 | ndp->ni_vp = newvp; |
---|
3735 | NFSCNHASH(cnp, HASHINIT); |
---|
3736 | if (cnp->cn_namelen <= NCHNAMLEN && |
---|
3737 | (newvp->v_type != VDIR || |
---|
3738 | dctime.tv_sec != 0)) { |
---|
3739 | cache_enter_time(ndp->ni_dvp, |
---|
3740 | ndp->ni_vp, cnp, |
---|
3741 | &nfsva.na_ctime, |
---|
3742 | newvp->v_type != VDIR ? NULL : |
---|
3743 | &dctime); |
---|
3744 | } |
---|
3745 | if (unlocknewvp) |
---|
3746 | vput(newvp); |
---|
3747 | else |
---|
3748 | vrele(newvp); |
---|
3749 | newvp = NULLVP; |
---|
3750 | } |
---|
3751 | } |
---|
3752 | } else if (nfhp != NULL) { |
---|
3753 | free(nfhp, M_NFSFH); |
---|
3754 | } |
---|
3755 | NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
3756 | more_dirs = fxdr_unsigned(int, *tl); |
---|
3757 | } |
---|
3758 | /* |
---|
3759 | * If at end of rpc data, get the eof boolean |
---|
3760 | */ |
---|
3761 | if (!more_dirs) { |
---|
3762 | NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
3763 | eof = fxdr_unsigned(int, *tl); |
---|
3764 | if (tryformoredirs) |
---|
3765 | more_dirs = !eof; |
---|
3766 | if (nd->nd_flag & ND_NFSV4) { |
---|
3767 | error = nfscl_postop_attr(nd, nap, attrflagp, |
---|
3768 | stuff); |
---|
3769 | if (error) |
---|
3770 | goto nfsmout; |
---|
3771 | } |
---|
3772 | } |
---|
3773 | mbuf_freem(nd->nd_mrep); |
---|
3774 | nd->nd_mrep = NULL; |
---|
3775 | } |
---|
3776 | /* |
---|
3777 | * Fill last record, iff any, out to a multiple of DIRBLKSIZ |
---|
3778 | * by increasing d_reclen for the last record. |
---|
3779 | */ |
---|
3780 | if (blksiz > 0) { |
---|
3781 | left = DIRBLKSIZ - blksiz; |
---|
3782 | NFSBZERO(uio_iov_base(uiop), left); |
---|
3783 | dp->d_reclen += left; |
---|
3784 | uio_iov_base_add(uiop, left); |
---|
3785 | uio_iov_len_add(uiop, -(left)); |
---|
3786 | uio_uio_resid_add(uiop, -(left)); |
---|
3787 | uiop->uio_offset += left; |
---|
3788 | } |
---|
3789 | |
---|
3790 | /* |
---|
3791 | * If returning no data, assume end of file. |
---|
3792 | * If not bigenough, return not end of file, since you aren't |
---|
3793 | * returning all the data |
---|
3794 | * Otherwise, return the eof flag from the server. |
---|
3795 | */ |
---|
3796 | if (eofp != NULL) { |
---|
3797 | if (tresid == uio_uio_resid(uiop)) |
---|
3798 | *eofp = 1; |
---|
3799 | else if (!bigenough) |
---|
3800 | *eofp = 0; |
---|
3801 | else |
---|
3802 | *eofp = eof; |
---|
3803 | } |
---|
3804 | |
---|
3805 | /* |
---|
3806 | * Add extra empty records to any remaining DIRBLKSIZ chunks. |
---|
3807 | */ |
---|
3808 | while (uio_uio_resid(uiop) > 0 && uio_uio_resid(uiop) != tresid) { |
---|
3809 | dp = (struct dirent *)uio_iov_base(uiop); |
---|
3810 | NFSBZERO(dp, DIRBLKSIZ); |
---|
3811 | dp->d_type = DT_UNKNOWN; |
---|
3812 | #ifndef __rtems__ |
---|
3813 | tl = (u_int32_t *)&dp->d_name[4]; |
---|
3814 | *tl++ = cookie.lval[0]; |
---|
3815 | *tl = cookie.lval[1]; |
---|
3816 | #else /* __rtems__ */ |
---|
3817 | memcpy(&dp->d_name[8], &cookie.lval[0], sizeof(u_int32_t)); |
---|
3818 | memcpy(&dp->d_name[8 + sizeof(u_int32_t)], &cookie.lval[1], sizeof(u_int32_t)); |
---|
3819 | #endif /* __rtems__ */ |
---|
3820 | dp->d_reclen = DIRBLKSIZ; |
---|
3821 | uio_iov_base_add(uiop, DIRBLKSIZ); |
---|
3822 | uio_iov_len_add(uiop, -(DIRBLKSIZ)); |
---|
3823 | uio_uio_resid_add(uiop, -(DIRBLKSIZ)); |
---|
3824 | uiop->uio_offset += DIRBLKSIZ; |
---|
3825 | } |
---|
3826 | |
---|
3827 | nfsmout: |
---|
3828 | if (nd->nd_mrep != NULL) |
---|
3829 | mbuf_freem(nd->nd_mrep); |
---|
3830 | return (error); |
---|
3831 | } |
---|
3832 | #endif /* !APPLE */ |
---|
3833 | |
---|
3834 | /* |
---|
3835 | * Nfs commit rpc |
---|
3836 | */ |
---|
3837 | APPLESTATIC int |
---|
3838 | nfsrpc_commit(vnode_t vp, u_quad_t offset, int cnt, struct ucred *cred, |
---|
3839 | NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) |
---|
3840 | { |
---|
3841 | u_int32_t *tl; |
---|
3842 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
3843 | nfsattrbit_t attrbits; |
---|
3844 | int error; |
---|
3845 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
3846 | |
---|
3847 | *attrflagp = 0; |
---|
3848 | NFSCL_REQSTART(nd, NFSPROC_COMMIT, vp); |
---|
3849 | NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); |
---|
3850 | txdr_hyper(offset, tl); |
---|
3851 | tl += 2; |
---|
3852 | *tl = txdr_unsigned(cnt); |
---|
3853 | if (nd->nd_flag & ND_NFSV4) { |
---|
3854 | /* |
---|
3855 | * And do a Getattr op. |
---|
3856 | */ |
---|
3857 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
3858 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
3859 | NFSGETATTR_ATTRBIT(&attrbits); |
---|
3860 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
3861 | } |
---|
3862 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
3863 | if (error) |
---|
3864 | return (error); |
---|
3865 | error = nfscl_wcc_data(nd, vp, nap, attrflagp, NULL, stuff); |
---|
3866 | if (!error && !nd->nd_repstat) { |
---|
3867 | NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF); |
---|
3868 | NFSLOCKMNT(nmp); |
---|
3869 | if (NFSBCMP(nmp->nm_verf, tl, NFSX_VERF)) { |
---|
3870 | NFSBCOPY(tl, nmp->nm_verf, NFSX_VERF); |
---|
3871 | nd->nd_repstat = NFSERR_STALEWRITEVERF; |
---|
3872 | } |
---|
3873 | NFSUNLOCKMNT(nmp); |
---|
3874 | if (nd->nd_flag & ND_NFSV4) |
---|
3875 | error = nfscl_postop_attr(nd, nap, attrflagp, stuff); |
---|
3876 | } |
---|
3877 | nfsmout: |
---|
3878 | if (!error && nd->nd_repstat) |
---|
3879 | error = nd->nd_repstat; |
---|
3880 | mbuf_freem(nd->nd_mrep); |
---|
3881 | return (error); |
---|
3882 | } |
---|
3883 | |
---|
3884 | /* |
---|
3885 | * NFS byte range lock rpc. |
---|
3886 | * (Mostly just calls one of the three lower level RPC routines.) |
---|
3887 | */ |
---|
3888 | APPLESTATIC int |
---|
3889 | nfsrpc_advlock(vnode_t vp, off_t size, int op, struct flock *fl, |
---|
3890 | int reclaim, struct ucred *cred, NFSPROC_T *p, void *id, int flags) |
---|
3891 | { |
---|
3892 | struct nfscllockowner *lp; |
---|
3893 | struct nfsclclient *clp; |
---|
3894 | struct nfsfh *nfhp; |
---|
3895 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
3896 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
3897 | u_int64_t off, len; |
---|
3898 | off_t start, end; |
---|
3899 | u_int32_t clidrev = 0; |
---|
3900 | int error = 0, newone = 0, expireret = 0, retrycnt, donelocally; |
---|
3901 | int callcnt, dorpc; |
---|
3902 | |
---|
3903 | /* |
---|
3904 | * Convert the flock structure into a start and end and do POSIX |
---|
3905 | * bounds checking. |
---|
3906 | */ |
---|
3907 | switch (fl->l_whence) { |
---|
3908 | case SEEK_SET: |
---|
3909 | case SEEK_CUR: |
---|
3910 | /* |
---|
3911 | * Caller is responsible for adding any necessary offset |
---|
3912 | * when SEEK_CUR is used. |
---|
3913 | */ |
---|
3914 | start = fl->l_start; |
---|
3915 | off = fl->l_start; |
---|
3916 | break; |
---|
3917 | case SEEK_END: |
---|
3918 | start = size + fl->l_start; |
---|
3919 | off = size + fl->l_start; |
---|
3920 | break; |
---|
3921 | default: |
---|
3922 | return (EINVAL); |
---|
3923 | } |
---|
3924 | if (start < 0) |
---|
3925 | return (EINVAL); |
---|
3926 | if (fl->l_len != 0) { |
---|
3927 | end = start + fl->l_len - 1; |
---|
3928 | if (end < start) |
---|
3929 | return (EINVAL); |
---|
3930 | } |
---|
3931 | |
---|
3932 | len = fl->l_len; |
---|
3933 | if (len == 0) |
---|
3934 | len = NFS64BITSSET; |
---|
3935 | retrycnt = 0; |
---|
3936 | do { |
---|
3937 | nd->nd_repstat = 0; |
---|
3938 | if (op == F_GETLK) { |
---|
3939 | error = nfscl_getcl(vnode_mount(vp), cred, p, 1, &clp); |
---|
3940 | if (error) |
---|
3941 | return (error); |
---|
3942 | error = nfscl_lockt(vp, clp, off, len, fl, p, id, flags); |
---|
3943 | if (!error) { |
---|
3944 | clidrev = clp->nfsc_clientidrev; |
---|
3945 | error = nfsrpc_lockt(nd, vp, clp, off, len, fl, cred, |
---|
3946 | p, id, flags); |
---|
3947 | } else if (error == -1) { |
---|
3948 | error = 0; |
---|
3949 | } |
---|
3950 | nfscl_clientrelease(clp); |
---|
3951 | } else if (op == F_UNLCK && fl->l_type == F_UNLCK) { |
---|
3952 | /* |
---|
3953 | * We must loop around for all lockowner cases. |
---|
3954 | */ |
---|
3955 | callcnt = 0; |
---|
3956 | error = nfscl_getcl(vnode_mount(vp), cred, p, 1, &clp); |
---|
3957 | if (error) |
---|
3958 | return (error); |
---|
3959 | do { |
---|
3960 | error = nfscl_relbytelock(vp, off, len, cred, p, callcnt, |
---|
3961 | clp, id, flags, &lp, &dorpc); |
---|
3962 | /* |
---|
3963 | * If it returns a NULL lp, we're done. |
---|
3964 | */ |
---|
3965 | if (lp == NULL) { |
---|
3966 | if (callcnt == 0) |
---|
3967 | nfscl_clientrelease(clp); |
---|
3968 | else |
---|
3969 | nfscl_releasealllocks(clp, vp, p, id, flags); |
---|
3970 | return (error); |
---|
3971 | } |
---|
3972 | if (nmp->nm_clp != NULL) |
---|
3973 | clidrev = nmp->nm_clp->nfsc_clientidrev; |
---|
3974 | else |
---|
3975 | clidrev = 0; |
---|
3976 | /* |
---|
3977 | * If the server doesn't support Posix lock semantics, |
---|
3978 | * only allow locks on the entire file, since it won't |
---|
3979 | * handle overlapping byte ranges. |
---|
3980 | * There might still be a problem when a lock |
---|
3981 | * upgrade/downgrade (read<->write) occurs, since the |
---|
3982 | * server "might" expect an unlock first? |
---|
3983 | */ |
---|
3984 | if (dorpc && (lp->nfsl_open->nfso_posixlock || |
---|
3985 | (off == 0 && len == NFS64BITSSET))) { |
---|
3986 | /* |
---|
3987 | * Since the lock records will go away, we must |
---|
3988 | * wait for grace and delay here. |
---|
3989 | */ |
---|
3990 | do { |
---|
3991 | error = nfsrpc_locku(nd, nmp, lp, off, len, |
---|
3992 | NFSV4LOCKT_READ, cred, p, 0); |
---|
3993 | if ((nd->nd_repstat == NFSERR_GRACE || |
---|
3994 | nd->nd_repstat == NFSERR_DELAY) && |
---|
3995 | error == 0) |
---|
3996 | (void) nfs_catnap(PZERO, (int)nd->nd_repstat, |
---|
3997 | "nfs_advlock"); |
---|
3998 | } while ((nd->nd_repstat == NFSERR_GRACE || |
---|
3999 | nd->nd_repstat == NFSERR_DELAY) && error == 0); |
---|
4000 | } |
---|
4001 | callcnt++; |
---|
4002 | } while (error == 0 && nd->nd_repstat == 0); |
---|
4003 | nfscl_releasealllocks(clp, vp, p, id, flags); |
---|
4004 | } else if (op == F_SETLK) { |
---|
4005 | error = nfscl_getbytelock(vp, off, len, fl->l_type, cred, p, |
---|
4006 | NULL, 0, id, flags, NULL, NULL, &lp, &newone, &donelocally); |
---|
4007 | if (error || donelocally) { |
---|
4008 | return (error); |
---|
4009 | } |
---|
4010 | if (nmp->nm_clp != NULL) |
---|
4011 | clidrev = nmp->nm_clp->nfsc_clientidrev; |
---|
4012 | else |
---|
4013 | clidrev = 0; |
---|
4014 | nfhp = VTONFS(vp)->n_fhp; |
---|
4015 | if (!lp->nfsl_open->nfso_posixlock && |
---|
4016 | (off != 0 || len != NFS64BITSSET)) { |
---|
4017 | error = EINVAL; |
---|
4018 | } else { |
---|
4019 | error = nfsrpc_lock(nd, nmp, vp, nfhp->nfh_fh, |
---|
4020 | nfhp->nfh_len, lp, newone, reclaim, off, |
---|
4021 | len, fl->l_type, cred, p, 0); |
---|
4022 | } |
---|
4023 | if (!error) |
---|
4024 | error = nd->nd_repstat; |
---|
4025 | nfscl_lockrelease(lp, error, newone); |
---|
4026 | } else { |
---|
4027 | error = EINVAL; |
---|
4028 | } |
---|
4029 | if (!error) |
---|
4030 | error = nd->nd_repstat; |
---|
4031 | if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || |
---|
4032 | error == NFSERR_STALEDONTRECOVER || |
---|
4033 | error == NFSERR_STALECLIENTID || error == NFSERR_DELAY || |
---|
4034 | error == NFSERR_BADSESSION) { |
---|
4035 | (void) nfs_catnap(PZERO, error, "nfs_advlock"); |
---|
4036 | } else if ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) |
---|
4037 | && clidrev != 0) { |
---|
4038 | expireret = nfscl_hasexpired(nmp->nm_clp, clidrev, p); |
---|
4039 | retrycnt++; |
---|
4040 | } |
---|
4041 | } while (error == NFSERR_GRACE || |
---|
4042 | error == NFSERR_STALECLIENTID || error == NFSERR_DELAY || |
---|
4043 | error == NFSERR_STALEDONTRECOVER || error == NFSERR_STALESTATEID || |
---|
4044 | error == NFSERR_BADSESSION || |
---|
4045 | ((error == NFSERR_EXPIRED || error == NFSERR_BADSTATEID) && |
---|
4046 | expireret == 0 && clidrev != 0 && retrycnt < 4)); |
---|
4047 | if (error && retrycnt >= 4) |
---|
4048 | error = EIO; |
---|
4049 | return (error); |
---|
4050 | } |
---|
4051 | |
---|
4052 | /* |
---|
4053 | * The lower level routine for the LockT case. |
---|
4054 | */ |
---|
4055 | APPLESTATIC int |
---|
4056 | nfsrpc_lockt(struct nfsrv_descript *nd, vnode_t vp, |
---|
4057 | struct nfsclclient *clp, u_int64_t off, u_int64_t len, struct flock *fl, |
---|
4058 | struct ucred *cred, NFSPROC_T *p, void *id, int flags) |
---|
4059 | { |
---|
4060 | u_int32_t *tl; |
---|
4061 | int error, type, size; |
---|
4062 | uint8_t own[NFSV4CL_LOCKNAMELEN + NFSX_V4FHMAX]; |
---|
4063 | struct nfsnode *np; |
---|
4064 | struct nfsmount *nmp; |
---|
4065 | struct nfsclsession *tsep; |
---|
4066 | |
---|
4067 | nmp = VFSTONFS(vp->v_mount); |
---|
4068 | NFSCL_REQSTART(nd, NFSPROC_LOCKT, vp); |
---|
4069 | NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); |
---|
4070 | if (fl->l_type == F_RDLCK) |
---|
4071 | *tl++ = txdr_unsigned(NFSV4LOCKT_READ); |
---|
4072 | else |
---|
4073 | *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); |
---|
4074 | txdr_hyper(off, tl); |
---|
4075 | tl += 2; |
---|
4076 | txdr_hyper(len, tl); |
---|
4077 | tl += 2; |
---|
4078 | tsep = nfsmnt_mdssession(nmp); |
---|
4079 | *tl++ = tsep->nfsess_clientid.lval[0]; |
---|
4080 | *tl = tsep->nfsess_clientid.lval[1]; |
---|
4081 | nfscl_filllockowner(id, own, flags); |
---|
4082 | np = VTONFS(vp); |
---|
4083 | NFSBCOPY(np->n_fhp->nfh_fh, &own[NFSV4CL_LOCKNAMELEN], |
---|
4084 | np->n_fhp->nfh_len); |
---|
4085 | (void)nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN + np->n_fhp->nfh_len); |
---|
4086 | error = nfscl_request(nd, vp, p, cred, NULL); |
---|
4087 | if (error) |
---|
4088 | return (error); |
---|
4089 | if (nd->nd_repstat == 0) { |
---|
4090 | fl->l_type = F_UNLCK; |
---|
4091 | } else if (nd->nd_repstat == NFSERR_DENIED) { |
---|
4092 | nd->nd_repstat = 0; |
---|
4093 | fl->l_whence = SEEK_SET; |
---|
4094 | NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED); |
---|
4095 | fl->l_start = fxdr_hyper(tl); |
---|
4096 | tl += 2; |
---|
4097 | len = fxdr_hyper(tl); |
---|
4098 | tl += 2; |
---|
4099 | if (len == NFS64BITSSET) |
---|
4100 | fl->l_len = 0; |
---|
4101 | else |
---|
4102 | fl->l_len = len; |
---|
4103 | type = fxdr_unsigned(int, *tl++); |
---|
4104 | if (type == NFSV4LOCKT_WRITE) |
---|
4105 | fl->l_type = F_WRLCK; |
---|
4106 | else |
---|
4107 | fl->l_type = F_RDLCK; |
---|
4108 | /* |
---|
4109 | * XXX For now, I have no idea what to do with the |
---|
4110 | * conflicting lock_owner, so I'll just set the pid == 0 |
---|
4111 | * and skip over the lock_owner. |
---|
4112 | */ |
---|
4113 | fl->l_pid = (pid_t)0; |
---|
4114 | tl += 2; |
---|
4115 | size = fxdr_unsigned(int, *tl); |
---|
4116 | if (size < 0 || size > NFSV4_OPAQUELIMIT) |
---|
4117 | error = EBADRPC; |
---|
4118 | if (!error) |
---|
4119 | error = nfsm_advance(nd, NFSM_RNDUP(size), -1); |
---|
4120 | } else if (nd->nd_repstat == NFSERR_STALECLIENTID) |
---|
4121 | nfscl_initiate_recovery(clp); |
---|
4122 | nfsmout: |
---|
4123 | mbuf_freem(nd->nd_mrep); |
---|
4124 | return (error); |
---|
4125 | } |
---|
4126 | |
---|
4127 | /* |
---|
4128 | * Lower level function that performs the LockU RPC. |
---|
4129 | */ |
---|
4130 | static int |
---|
4131 | nfsrpc_locku(struct nfsrv_descript *nd, struct nfsmount *nmp, |
---|
4132 | struct nfscllockowner *lp, u_int64_t off, u_int64_t len, |
---|
4133 | u_int32_t type, struct ucred *cred, NFSPROC_T *p, int syscred) |
---|
4134 | { |
---|
4135 | u_int32_t *tl; |
---|
4136 | int error; |
---|
4137 | |
---|
4138 | nfscl_reqstart(nd, NFSPROC_LOCKU, nmp, lp->nfsl_open->nfso_fh, |
---|
4139 | lp->nfsl_open->nfso_fhlen, NULL, NULL, 0, 0); |
---|
4140 | NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + 6 * NFSX_UNSIGNED); |
---|
4141 | *tl++ = txdr_unsigned(type); |
---|
4142 | *tl = txdr_unsigned(lp->nfsl_seqid); |
---|
4143 | if (nfstest_outofseq && |
---|
4144 | (arc4random() % nfstest_outofseq) == 0) |
---|
4145 | *tl = txdr_unsigned(lp->nfsl_seqid + 1); |
---|
4146 | tl++; |
---|
4147 | if (NFSHASNFSV4N(nmp)) |
---|
4148 | *tl++ = 0; |
---|
4149 | else |
---|
4150 | *tl++ = lp->nfsl_stateid.seqid; |
---|
4151 | *tl++ = lp->nfsl_stateid.other[0]; |
---|
4152 | *tl++ = lp->nfsl_stateid.other[1]; |
---|
4153 | *tl++ = lp->nfsl_stateid.other[2]; |
---|
4154 | txdr_hyper(off, tl); |
---|
4155 | tl += 2; |
---|
4156 | txdr_hyper(len, tl); |
---|
4157 | if (syscred) |
---|
4158 | nd->nd_flag |= ND_USEGSSNAME; |
---|
4159 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, |
---|
4160 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
4161 | NFSCL_INCRSEQID(lp->nfsl_seqid, nd); |
---|
4162 | if (error) |
---|
4163 | return (error); |
---|
4164 | if (nd->nd_repstat == 0) { |
---|
4165 | NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); |
---|
4166 | lp->nfsl_stateid.seqid = *tl++; |
---|
4167 | lp->nfsl_stateid.other[0] = *tl++; |
---|
4168 | lp->nfsl_stateid.other[1] = *tl++; |
---|
4169 | lp->nfsl_stateid.other[2] = *tl; |
---|
4170 | } else if (nd->nd_repstat == NFSERR_STALESTATEID) |
---|
4171 | nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp); |
---|
4172 | nfsmout: |
---|
4173 | mbuf_freem(nd->nd_mrep); |
---|
4174 | return (error); |
---|
4175 | } |
---|
4176 | |
---|
4177 | /* |
---|
4178 | * The actual Lock RPC. |
---|
4179 | */ |
---|
4180 | APPLESTATIC int |
---|
4181 | nfsrpc_lock(struct nfsrv_descript *nd, struct nfsmount *nmp, vnode_t vp, |
---|
4182 | u_int8_t *nfhp, int fhlen, struct nfscllockowner *lp, int newone, |
---|
4183 | int reclaim, u_int64_t off, u_int64_t len, short type, struct ucred *cred, |
---|
4184 | NFSPROC_T *p, int syscred) |
---|
4185 | { |
---|
4186 | u_int32_t *tl; |
---|
4187 | int error, size; |
---|
4188 | uint8_t own[NFSV4CL_LOCKNAMELEN + NFSX_V4FHMAX]; |
---|
4189 | struct nfsclsession *tsep; |
---|
4190 | |
---|
4191 | nfscl_reqstart(nd, NFSPROC_LOCK, nmp, nfhp, fhlen, NULL, NULL, 0, 0); |
---|
4192 | NFSM_BUILD(tl, u_int32_t *, 7 * NFSX_UNSIGNED); |
---|
4193 | if (type == F_RDLCK) |
---|
4194 | *tl++ = txdr_unsigned(NFSV4LOCKT_READ); |
---|
4195 | else |
---|
4196 | *tl++ = txdr_unsigned(NFSV4LOCKT_WRITE); |
---|
4197 | *tl++ = txdr_unsigned(reclaim); |
---|
4198 | txdr_hyper(off, tl); |
---|
4199 | tl += 2; |
---|
4200 | txdr_hyper(len, tl); |
---|
4201 | tl += 2; |
---|
4202 | if (newone) { |
---|
4203 | *tl = newnfs_true; |
---|
4204 | NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + |
---|
4205 | 2 * NFSX_UNSIGNED + NFSX_HYPER); |
---|
4206 | *tl++ = txdr_unsigned(lp->nfsl_open->nfso_own->nfsow_seqid); |
---|
4207 | if (NFSHASNFSV4N(nmp)) |
---|
4208 | *tl++ = 0; |
---|
4209 | else |
---|
4210 | *tl++ = lp->nfsl_open->nfso_stateid.seqid; |
---|
4211 | *tl++ = lp->nfsl_open->nfso_stateid.other[0]; |
---|
4212 | *tl++ = lp->nfsl_open->nfso_stateid.other[1]; |
---|
4213 | *tl++ = lp->nfsl_open->nfso_stateid.other[2]; |
---|
4214 | *tl++ = txdr_unsigned(lp->nfsl_seqid); |
---|
4215 | tsep = nfsmnt_mdssession(nmp); |
---|
4216 | *tl++ = tsep->nfsess_clientid.lval[0]; |
---|
4217 | *tl = tsep->nfsess_clientid.lval[1]; |
---|
4218 | NFSBCOPY(lp->nfsl_owner, own, NFSV4CL_LOCKNAMELEN); |
---|
4219 | NFSBCOPY(nfhp, &own[NFSV4CL_LOCKNAMELEN], fhlen); |
---|
4220 | (void)nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN + fhlen); |
---|
4221 | } else { |
---|
4222 | *tl = newnfs_false; |
---|
4223 | NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID + NFSX_UNSIGNED); |
---|
4224 | if (NFSHASNFSV4N(nmp)) |
---|
4225 | *tl++ = 0; |
---|
4226 | else |
---|
4227 | *tl++ = lp->nfsl_stateid.seqid; |
---|
4228 | *tl++ = lp->nfsl_stateid.other[0]; |
---|
4229 | *tl++ = lp->nfsl_stateid.other[1]; |
---|
4230 | *tl++ = lp->nfsl_stateid.other[2]; |
---|
4231 | *tl = txdr_unsigned(lp->nfsl_seqid); |
---|
4232 | if (nfstest_outofseq && |
---|
4233 | (arc4random() % nfstest_outofseq) == 0) |
---|
4234 | *tl = txdr_unsigned(lp->nfsl_seqid + 1); |
---|
4235 | } |
---|
4236 | if (syscred) |
---|
4237 | nd->nd_flag |= ND_USEGSSNAME; |
---|
4238 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, |
---|
4239 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
4240 | if (error) |
---|
4241 | return (error); |
---|
4242 | if (newone) |
---|
4243 | NFSCL_INCRSEQID(lp->nfsl_open->nfso_own->nfsow_seqid, nd); |
---|
4244 | NFSCL_INCRSEQID(lp->nfsl_seqid, nd); |
---|
4245 | if (nd->nd_repstat == 0) { |
---|
4246 | NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID); |
---|
4247 | lp->nfsl_stateid.seqid = *tl++; |
---|
4248 | lp->nfsl_stateid.other[0] = *tl++; |
---|
4249 | lp->nfsl_stateid.other[1] = *tl++; |
---|
4250 | lp->nfsl_stateid.other[2] = *tl; |
---|
4251 | } else if (nd->nd_repstat == NFSERR_DENIED) { |
---|
4252 | NFSM_DISSECT(tl, u_int32_t *, 8 * NFSX_UNSIGNED); |
---|
4253 | size = fxdr_unsigned(int, *(tl + 7)); |
---|
4254 | if (size < 0 || size > NFSV4_OPAQUELIMIT) |
---|
4255 | error = EBADRPC; |
---|
4256 | if (!error) |
---|
4257 | error = nfsm_advance(nd, NFSM_RNDUP(size), -1); |
---|
4258 | } else if (nd->nd_repstat == NFSERR_STALESTATEID) |
---|
4259 | nfscl_initiate_recovery(lp->nfsl_open->nfso_own->nfsow_clp); |
---|
4260 | nfsmout: |
---|
4261 | mbuf_freem(nd->nd_mrep); |
---|
4262 | return (error); |
---|
4263 | } |
---|
4264 | |
---|
4265 | /* |
---|
4266 | * nfs statfs rpc |
---|
4267 | * (always called with the vp for the mount point) |
---|
4268 | */ |
---|
4269 | APPLESTATIC int |
---|
4270 | nfsrpc_statfs(vnode_t vp, struct nfsstatfs *sbp, struct nfsfsinfo *fsp, |
---|
4271 | struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, |
---|
4272 | void *stuff) |
---|
4273 | { |
---|
4274 | u_int32_t *tl = NULL; |
---|
4275 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
4276 | struct nfsmount *nmp; |
---|
4277 | nfsattrbit_t attrbits; |
---|
4278 | int error; |
---|
4279 | |
---|
4280 | *attrflagp = 0; |
---|
4281 | nmp = VFSTONFS(vnode_mount(vp)); |
---|
4282 | if (NFSHASNFSV4(nmp)) { |
---|
4283 | /* |
---|
4284 | * For V4, you actually do a getattr. |
---|
4285 | */ |
---|
4286 | NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); |
---|
4287 | NFSSTATFS_GETATTRBIT(&attrbits); |
---|
4288 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
4289 | nd->nd_flag |= ND_USEGSSNAME; |
---|
4290 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
4291 | if (error) |
---|
4292 | return (error); |
---|
4293 | if (nd->nd_repstat == 0) { |
---|
4294 | error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, |
---|
4295 | NULL, NULL, sbp, fsp, NULL, 0, NULL, NULL, NULL, p, |
---|
4296 | cred); |
---|
4297 | if (!error) { |
---|
4298 | nmp->nm_fsid[0] = nap->na_filesid[0]; |
---|
4299 | nmp->nm_fsid[1] = nap->na_filesid[1]; |
---|
4300 | NFSSETHASSETFSID(nmp); |
---|
4301 | *attrflagp = 1; |
---|
4302 | } |
---|
4303 | } else { |
---|
4304 | error = nd->nd_repstat; |
---|
4305 | } |
---|
4306 | if (error) |
---|
4307 | goto nfsmout; |
---|
4308 | } else { |
---|
4309 | NFSCL_REQSTART(nd, NFSPROC_FSSTAT, vp); |
---|
4310 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
4311 | if (error) |
---|
4312 | return (error); |
---|
4313 | if (nd->nd_flag & ND_NFSV3) { |
---|
4314 | error = nfscl_postop_attr(nd, nap, attrflagp, stuff); |
---|
4315 | if (error) |
---|
4316 | goto nfsmout; |
---|
4317 | } |
---|
4318 | if (nd->nd_repstat) { |
---|
4319 | error = nd->nd_repstat; |
---|
4320 | goto nfsmout; |
---|
4321 | } |
---|
4322 | NFSM_DISSECT(tl, u_int32_t *, |
---|
4323 | NFSX_STATFS(nd->nd_flag & ND_NFSV3)); |
---|
4324 | } |
---|
4325 | if (NFSHASNFSV3(nmp)) { |
---|
4326 | sbp->sf_tbytes = fxdr_hyper(tl); tl += 2; |
---|
4327 | sbp->sf_fbytes = fxdr_hyper(tl); tl += 2; |
---|
4328 | sbp->sf_abytes = fxdr_hyper(tl); tl += 2; |
---|
4329 | sbp->sf_tfiles = fxdr_hyper(tl); tl += 2; |
---|
4330 | sbp->sf_ffiles = fxdr_hyper(tl); tl += 2; |
---|
4331 | sbp->sf_afiles = fxdr_hyper(tl); tl += 2; |
---|
4332 | sbp->sf_invarsec = fxdr_unsigned(u_int32_t, *tl); |
---|
4333 | } else if (NFSHASNFSV4(nmp) == 0) { |
---|
4334 | sbp->sf_tsize = fxdr_unsigned(u_int32_t, *tl++); |
---|
4335 | sbp->sf_bsize = fxdr_unsigned(u_int32_t, *tl++); |
---|
4336 | sbp->sf_blocks = fxdr_unsigned(u_int32_t, *tl++); |
---|
4337 | sbp->sf_bfree = fxdr_unsigned(u_int32_t, *tl++); |
---|
4338 | sbp->sf_bavail = fxdr_unsigned(u_int32_t, *tl); |
---|
4339 | } |
---|
4340 | nfsmout: |
---|
4341 | mbuf_freem(nd->nd_mrep); |
---|
4342 | return (error); |
---|
4343 | } |
---|
4344 | |
---|
4345 | /* |
---|
4346 | * nfs pathconf rpc |
---|
4347 | */ |
---|
4348 | APPLESTATIC int |
---|
4349 | nfsrpc_pathconf(vnode_t vp, struct nfsv3_pathconf *pc, |
---|
4350 | struct ucred *cred, NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, |
---|
4351 | void *stuff) |
---|
4352 | { |
---|
4353 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
4354 | struct nfsmount *nmp; |
---|
4355 | u_int32_t *tl; |
---|
4356 | nfsattrbit_t attrbits; |
---|
4357 | int error; |
---|
4358 | |
---|
4359 | *attrflagp = 0; |
---|
4360 | nmp = VFSTONFS(vnode_mount(vp)); |
---|
4361 | if (NFSHASNFSV4(nmp)) { |
---|
4362 | /* |
---|
4363 | * For V4, you actually do a getattr. |
---|
4364 | */ |
---|
4365 | NFSCL_REQSTART(nd, NFSPROC_GETATTR, vp); |
---|
4366 | NFSPATHCONF_GETATTRBIT(&attrbits); |
---|
4367 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
4368 | nd->nd_flag |= ND_USEGSSNAME; |
---|
4369 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
4370 | if (error) |
---|
4371 | return (error); |
---|
4372 | if (nd->nd_repstat == 0) { |
---|
4373 | error = nfsv4_loadattr(nd, NULL, nap, NULL, NULL, 0, |
---|
4374 | pc, NULL, NULL, NULL, NULL, 0, NULL, NULL, NULL, p, |
---|
4375 | cred); |
---|
4376 | if (!error) |
---|
4377 | *attrflagp = 1; |
---|
4378 | } else { |
---|
4379 | error = nd->nd_repstat; |
---|
4380 | } |
---|
4381 | } else { |
---|
4382 | NFSCL_REQSTART(nd, NFSPROC_PATHCONF, vp); |
---|
4383 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
4384 | if (error) |
---|
4385 | return (error); |
---|
4386 | error = nfscl_postop_attr(nd, nap, attrflagp, stuff); |
---|
4387 | if (nd->nd_repstat && !error) |
---|
4388 | error = nd->nd_repstat; |
---|
4389 | if (!error) { |
---|
4390 | NFSM_DISSECT(tl, u_int32_t *, NFSX_V3PATHCONF); |
---|
4391 | pc->pc_linkmax = fxdr_unsigned(u_int32_t, *tl++); |
---|
4392 | pc->pc_namemax = fxdr_unsigned(u_int32_t, *tl++); |
---|
4393 | pc->pc_notrunc = fxdr_unsigned(u_int32_t, *tl++); |
---|
4394 | pc->pc_chownrestricted = |
---|
4395 | fxdr_unsigned(u_int32_t, *tl++); |
---|
4396 | pc->pc_caseinsensitive = |
---|
4397 | fxdr_unsigned(u_int32_t, *tl++); |
---|
4398 | pc->pc_casepreserving = fxdr_unsigned(u_int32_t, *tl); |
---|
4399 | } |
---|
4400 | } |
---|
4401 | nfsmout: |
---|
4402 | mbuf_freem(nd->nd_mrep); |
---|
4403 | return (error); |
---|
4404 | } |
---|
4405 | |
---|
4406 | /* |
---|
4407 | * nfs version 3 fsinfo rpc call |
---|
4408 | */ |
---|
4409 | APPLESTATIC int |
---|
4410 | nfsrpc_fsinfo(vnode_t vp, struct nfsfsinfo *fsp, struct ucred *cred, |
---|
4411 | NFSPROC_T *p, struct nfsvattr *nap, int *attrflagp, void *stuff) |
---|
4412 | { |
---|
4413 | u_int32_t *tl; |
---|
4414 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
4415 | int error; |
---|
4416 | |
---|
4417 | *attrflagp = 0; |
---|
4418 | NFSCL_REQSTART(nd, NFSPROC_FSINFO, vp); |
---|
4419 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
4420 | if (error) |
---|
4421 | return (error); |
---|
4422 | error = nfscl_postop_attr(nd, nap, attrflagp, stuff); |
---|
4423 | if (nd->nd_repstat && !error) |
---|
4424 | error = nd->nd_repstat; |
---|
4425 | if (!error) { |
---|
4426 | NFSM_DISSECT(tl, u_int32_t *, NFSX_V3FSINFO); |
---|
4427 | fsp->fs_rtmax = fxdr_unsigned(u_int32_t, *tl++); |
---|
4428 | fsp->fs_rtpref = fxdr_unsigned(u_int32_t, *tl++); |
---|
4429 | fsp->fs_rtmult = fxdr_unsigned(u_int32_t, *tl++); |
---|
4430 | fsp->fs_wtmax = fxdr_unsigned(u_int32_t, *tl++); |
---|
4431 | fsp->fs_wtpref = fxdr_unsigned(u_int32_t, *tl++); |
---|
4432 | fsp->fs_wtmult = fxdr_unsigned(u_int32_t, *tl++); |
---|
4433 | fsp->fs_dtpref = fxdr_unsigned(u_int32_t, *tl++); |
---|
4434 | fsp->fs_maxfilesize = fxdr_hyper(tl); |
---|
4435 | tl += 2; |
---|
4436 | fxdr_nfsv3time(tl, &fsp->fs_timedelta); |
---|
4437 | tl += 2; |
---|
4438 | fsp->fs_properties = fxdr_unsigned(u_int32_t, *tl); |
---|
4439 | } |
---|
4440 | nfsmout: |
---|
4441 | mbuf_freem(nd->nd_mrep); |
---|
4442 | return (error); |
---|
4443 | } |
---|
4444 | |
---|
4445 | /* |
---|
4446 | * This function performs the Renew RPC. |
---|
4447 | */ |
---|
4448 | APPLESTATIC int |
---|
4449 | nfsrpc_renew(struct nfsclclient *clp, struct nfsclds *dsp, struct ucred *cred, |
---|
4450 | NFSPROC_T *p) |
---|
4451 | { |
---|
4452 | u_int32_t *tl; |
---|
4453 | struct nfsrv_descript nfsd; |
---|
4454 | struct nfsrv_descript *nd = &nfsd; |
---|
4455 | struct nfsmount *nmp; |
---|
4456 | int error; |
---|
4457 | struct nfssockreq *nrp; |
---|
4458 | struct nfsclsession *tsep; |
---|
4459 | |
---|
4460 | nmp = clp->nfsc_nmp; |
---|
4461 | if (nmp == NULL) |
---|
4462 | return (0); |
---|
4463 | if (dsp == NULL) |
---|
4464 | nfscl_reqstart(nd, NFSPROC_RENEW, nmp, NULL, 0, NULL, NULL, 0, |
---|
4465 | 0); |
---|
4466 | else |
---|
4467 | nfscl_reqstart(nd, NFSPROC_RENEW, nmp, NULL, 0, NULL, |
---|
4468 | &dsp->nfsclds_sess, 0, 0); |
---|
4469 | if (!NFSHASNFSV4N(nmp)) { |
---|
4470 | /* NFSv4.1 just uses a Sequence Op and not a Renew. */ |
---|
4471 | NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
4472 | tsep = nfsmnt_mdssession(nmp); |
---|
4473 | *tl++ = tsep->nfsess_clientid.lval[0]; |
---|
4474 | *tl = tsep->nfsess_clientid.lval[1]; |
---|
4475 | } |
---|
4476 | nrp = NULL; |
---|
4477 | if (dsp != NULL) |
---|
4478 | nrp = dsp->nfsclds_sockp; |
---|
4479 | if (nrp == NULL) |
---|
4480 | /* If NULL, use the MDS socket. */ |
---|
4481 | nrp = &nmp->nm_sockreq; |
---|
4482 | nd->nd_flag |= ND_USEGSSNAME; |
---|
4483 | if (dsp == NULL) |
---|
4484 | error = newnfs_request(nd, nmp, NULL, nrp, NULL, p, cred, |
---|
4485 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
4486 | else { |
---|
4487 | error = newnfs_request(nd, nmp, NULL, nrp, NULL, p, cred, |
---|
4488 | NFS_PROG, NFS_VER4, NULL, 1, NULL, &dsp->nfsclds_sess); |
---|
4489 | if (error == ENXIO) |
---|
4490 | nfscl_cancelreqs(dsp); |
---|
4491 | } |
---|
4492 | if (error) |
---|
4493 | return (error); |
---|
4494 | error = nd->nd_repstat; |
---|
4495 | mbuf_freem(nd->nd_mrep); |
---|
4496 | return (error); |
---|
4497 | } |
---|
4498 | |
---|
4499 | /* |
---|
4500 | * This function performs the Releaselockowner RPC. |
---|
4501 | */ |
---|
4502 | APPLESTATIC int |
---|
4503 | nfsrpc_rellockown(struct nfsmount *nmp, struct nfscllockowner *lp, |
---|
4504 | uint8_t *fh, int fhlen, struct ucred *cred, NFSPROC_T *p) |
---|
4505 | { |
---|
4506 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
4507 | u_int32_t *tl; |
---|
4508 | int error; |
---|
4509 | uint8_t own[NFSV4CL_LOCKNAMELEN + NFSX_V4FHMAX]; |
---|
4510 | struct nfsclsession *tsep; |
---|
4511 | |
---|
4512 | if (NFSHASNFSV4N(nmp)) { |
---|
4513 | /* For NFSv4.1, do a FreeStateID. */ |
---|
4514 | nfscl_reqstart(nd, NFSPROC_FREESTATEID, nmp, NULL, 0, NULL, |
---|
4515 | NULL, 0, 0); |
---|
4516 | nfsm_stateidtom(nd, &lp->nfsl_stateid, NFSSTATEID_PUTSTATEID); |
---|
4517 | } else { |
---|
4518 | nfscl_reqstart(nd, NFSPROC_RELEASELCKOWN, nmp, NULL, 0, NULL, |
---|
4519 | NULL, 0, 0); |
---|
4520 | NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
4521 | tsep = nfsmnt_mdssession(nmp); |
---|
4522 | *tl++ = tsep->nfsess_clientid.lval[0]; |
---|
4523 | *tl = tsep->nfsess_clientid.lval[1]; |
---|
4524 | NFSBCOPY(lp->nfsl_owner, own, NFSV4CL_LOCKNAMELEN); |
---|
4525 | NFSBCOPY(fh, &own[NFSV4CL_LOCKNAMELEN], fhlen); |
---|
4526 | (void)nfsm_strtom(nd, own, NFSV4CL_LOCKNAMELEN + fhlen); |
---|
4527 | } |
---|
4528 | nd->nd_flag |= ND_USEGSSNAME; |
---|
4529 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, |
---|
4530 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
4531 | if (error) |
---|
4532 | return (error); |
---|
4533 | error = nd->nd_repstat; |
---|
4534 | mbuf_freem(nd->nd_mrep); |
---|
4535 | return (error); |
---|
4536 | } |
---|
4537 | |
---|
4538 | /* |
---|
4539 | * This function performs the Compound to get the mount pt FH. |
---|
4540 | */ |
---|
4541 | APPLESTATIC int |
---|
4542 | nfsrpc_getdirpath(struct nfsmount *nmp, u_char *dirpath, struct ucred *cred, |
---|
4543 | NFSPROC_T *p) |
---|
4544 | { |
---|
4545 | u_int32_t *tl; |
---|
4546 | struct nfsrv_descript nfsd; |
---|
4547 | struct nfsrv_descript *nd = &nfsd; |
---|
4548 | u_char *cp, *cp2; |
---|
4549 | int error, cnt, len, setnil; |
---|
4550 | u_int32_t *opcntp; |
---|
4551 | |
---|
4552 | nfscl_reqstart(nd, NFSPROC_PUTROOTFH, nmp, NULL, 0, &opcntp, NULL, 0, |
---|
4553 | 0); |
---|
4554 | cp = dirpath; |
---|
4555 | cnt = 0; |
---|
4556 | do { |
---|
4557 | setnil = 0; |
---|
4558 | while (*cp == '/') |
---|
4559 | cp++; |
---|
4560 | cp2 = cp; |
---|
4561 | while (*cp2 != '\0' && *cp2 != '/') |
---|
4562 | cp2++; |
---|
4563 | if (*cp2 == '/') { |
---|
4564 | setnil = 1; |
---|
4565 | *cp2 = '\0'; |
---|
4566 | } |
---|
4567 | if (cp2 != cp) { |
---|
4568 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
4569 | *tl = txdr_unsigned(NFSV4OP_LOOKUP); |
---|
4570 | nfsm_strtom(nd, cp, strlen(cp)); |
---|
4571 | cnt++; |
---|
4572 | } |
---|
4573 | if (setnil) |
---|
4574 | *cp2++ = '/'; |
---|
4575 | cp = cp2; |
---|
4576 | } while (*cp != '\0'); |
---|
4577 | if (NFSHASNFSV4N(nmp)) |
---|
4578 | /* Has a Sequence Op done by nfscl_reqstart(). */ |
---|
4579 | *opcntp = txdr_unsigned(3 + cnt); |
---|
4580 | else |
---|
4581 | *opcntp = txdr_unsigned(2 + cnt); |
---|
4582 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
4583 | *tl = txdr_unsigned(NFSV4OP_GETFH); |
---|
4584 | nd->nd_flag |= ND_USEGSSNAME; |
---|
4585 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, |
---|
4586 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
4587 | if (error) |
---|
4588 | return (error); |
---|
4589 | if (nd->nd_repstat == 0) { |
---|
4590 | NFSM_DISSECT(tl, u_int32_t *, (3 + 2 * cnt) * NFSX_UNSIGNED); |
---|
4591 | tl += (2 + 2 * cnt); |
---|
4592 | if ((len = fxdr_unsigned(int, *tl)) <= 0 || |
---|
4593 | len > NFSX_FHMAX) { |
---|
4594 | nd->nd_repstat = NFSERR_BADXDR; |
---|
4595 | } else { |
---|
4596 | nd->nd_repstat = nfsrv_mtostr(nd, nmp->nm_fh, len); |
---|
4597 | if (nd->nd_repstat == 0) |
---|
4598 | nmp->nm_fhsize = len; |
---|
4599 | } |
---|
4600 | } |
---|
4601 | error = nd->nd_repstat; |
---|
4602 | nfsmout: |
---|
4603 | mbuf_freem(nd->nd_mrep); |
---|
4604 | return (error); |
---|
4605 | } |
---|
4606 | |
---|
4607 | /* |
---|
4608 | * This function performs the Delegreturn RPC. |
---|
4609 | */ |
---|
4610 | APPLESTATIC int |
---|
4611 | nfsrpc_delegreturn(struct nfscldeleg *dp, struct ucred *cred, |
---|
4612 | struct nfsmount *nmp, NFSPROC_T *p, int syscred) |
---|
4613 | { |
---|
4614 | u_int32_t *tl; |
---|
4615 | struct nfsrv_descript nfsd; |
---|
4616 | struct nfsrv_descript *nd = &nfsd; |
---|
4617 | int error; |
---|
4618 | |
---|
4619 | nfscl_reqstart(nd, NFSPROC_DELEGRETURN, nmp, dp->nfsdl_fh, |
---|
4620 | dp->nfsdl_fhlen, NULL, NULL, 0, 0); |
---|
4621 | NFSM_BUILD(tl, u_int32_t *, NFSX_STATEID); |
---|
4622 | if (NFSHASNFSV4N(nmp)) |
---|
4623 | *tl++ = 0; |
---|
4624 | else |
---|
4625 | *tl++ = dp->nfsdl_stateid.seqid; |
---|
4626 | *tl++ = dp->nfsdl_stateid.other[0]; |
---|
4627 | *tl++ = dp->nfsdl_stateid.other[1]; |
---|
4628 | *tl = dp->nfsdl_stateid.other[2]; |
---|
4629 | if (syscred) |
---|
4630 | nd->nd_flag |= ND_USEGSSNAME; |
---|
4631 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, |
---|
4632 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
4633 | if (error) |
---|
4634 | return (error); |
---|
4635 | error = nd->nd_repstat; |
---|
4636 | mbuf_freem(nd->nd_mrep); |
---|
4637 | return (error); |
---|
4638 | } |
---|
4639 | |
---|
4640 | /* |
---|
4641 | * nfs getacl call. |
---|
4642 | */ |
---|
4643 | APPLESTATIC int |
---|
4644 | nfsrpc_getacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p, |
---|
4645 | struct acl *aclp, void *stuff) |
---|
4646 | { |
---|
4647 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
4648 | int error; |
---|
4649 | nfsattrbit_t attrbits; |
---|
4650 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
4651 | |
---|
4652 | if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp)) |
---|
4653 | return (EOPNOTSUPP); |
---|
4654 | NFSCL_REQSTART(nd, NFSPROC_GETACL, vp); |
---|
4655 | NFSZERO_ATTRBIT(&attrbits); |
---|
4656 | NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL); |
---|
4657 | (void) nfsrv_putattrbit(nd, &attrbits); |
---|
4658 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
4659 | if (error) |
---|
4660 | return (error); |
---|
4661 | if (!nd->nd_repstat) |
---|
4662 | error = nfsv4_loadattr(nd, vp, NULL, NULL, NULL, 0, NULL, |
---|
4663 | NULL, NULL, NULL, aclp, 0, NULL, NULL, NULL, p, cred); |
---|
4664 | else |
---|
4665 | error = nd->nd_repstat; |
---|
4666 | mbuf_freem(nd->nd_mrep); |
---|
4667 | return (error); |
---|
4668 | } |
---|
4669 | |
---|
4670 | /* |
---|
4671 | * nfs setacl call. |
---|
4672 | */ |
---|
4673 | APPLESTATIC int |
---|
4674 | nfsrpc_setacl(vnode_t vp, struct ucred *cred, NFSPROC_T *p, |
---|
4675 | struct acl *aclp, void *stuff) |
---|
4676 | { |
---|
4677 | int error; |
---|
4678 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
4679 | |
---|
4680 | if (nfsrv_useacl == 0 || !NFSHASNFSV4(nmp)) |
---|
4681 | return (EOPNOTSUPP); |
---|
4682 | error = nfsrpc_setattr(vp, NULL, aclp, cred, p, NULL, NULL, stuff); |
---|
4683 | return (error); |
---|
4684 | } |
---|
4685 | |
---|
4686 | /* |
---|
4687 | * nfs setacl call. |
---|
4688 | */ |
---|
4689 | static int |
---|
4690 | nfsrpc_setaclrpc(vnode_t vp, struct ucred *cred, NFSPROC_T *p, |
---|
4691 | struct acl *aclp, nfsv4stateid_t *stateidp, void *stuff) |
---|
4692 | { |
---|
4693 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
4694 | int error; |
---|
4695 | nfsattrbit_t attrbits; |
---|
4696 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
4697 | |
---|
4698 | if (!NFSHASNFSV4(nmp)) |
---|
4699 | return (EOPNOTSUPP); |
---|
4700 | NFSCL_REQSTART(nd, NFSPROC_SETACL, vp); |
---|
4701 | nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); |
---|
4702 | NFSZERO_ATTRBIT(&attrbits); |
---|
4703 | NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_ACL); |
---|
4704 | (void) nfsv4_fillattr(nd, vnode_mount(vp), vp, aclp, NULL, NULL, 0, |
---|
4705 | &attrbits, NULL, NULL, 0, 0, 0, 0, (uint64_t)0, NULL); |
---|
4706 | error = nfscl_request(nd, vp, p, cred, stuff); |
---|
4707 | if (error) |
---|
4708 | return (error); |
---|
4709 | /* Don't care about the pre/postop attributes */ |
---|
4710 | mbuf_freem(nd->nd_mrep); |
---|
4711 | return (nd->nd_repstat); |
---|
4712 | } |
---|
4713 | |
---|
4714 | /* |
---|
4715 | * Do the NFSv4.1 Exchange ID. |
---|
4716 | */ |
---|
4717 | int |
---|
4718 | nfsrpc_exchangeid(struct nfsmount *nmp, struct nfsclclient *clp, |
---|
4719 | struct nfssockreq *nrp, uint32_t exchflags, struct nfsclds **dspp, |
---|
4720 | struct ucred *cred, NFSPROC_T *p) |
---|
4721 | { |
---|
4722 | uint32_t *tl, v41flags; |
---|
4723 | struct nfsrv_descript nfsd; |
---|
4724 | struct nfsrv_descript *nd = &nfsd; |
---|
4725 | struct nfsclds *dsp; |
---|
4726 | struct timespec verstime; |
---|
4727 | int error, len; |
---|
4728 | |
---|
4729 | *dspp = NULL; |
---|
4730 | nfscl_reqstart(nd, NFSPROC_EXCHANGEID, nmp, NULL, 0, NULL, NULL, 0, 0); |
---|
4731 | NFSM_BUILD(tl, uint32_t *, 2 * NFSX_UNSIGNED); |
---|
4732 | *tl++ = txdr_unsigned(nfsboottime.tv_sec); /* Client owner */ |
---|
4733 | *tl = txdr_unsigned(clp->nfsc_rev); |
---|
4734 | (void) nfsm_strtom(nd, clp->nfsc_id, clp->nfsc_idlen); |
---|
4735 | |
---|
4736 | NFSM_BUILD(tl, uint32_t *, 3 * NFSX_UNSIGNED); |
---|
4737 | *tl++ = txdr_unsigned(exchflags); |
---|
4738 | *tl++ = txdr_unsigned(NFSV4EXCH_SP4NONE); |
---|
4739 | |
---|
4740 | /* Set the implementation id4 */ |
---|
4741 | *tl = txdr_unsigned(1); |
---|
4742 | #ifndef __rtems__ |
---|
4743 | (void) nfsm_strtom(nd, "freebsd.org", strlen("freebsd.org")); |
---|
4744 | (void) nfsm_strtom(nd, version, strlen(version)); |
---|
4745 | #else /* __rtems__ */ |
---|
4746 | { |
---|
4747 | const char* rv = rtems_version(); |
---|
4748 | (void) nfsm_strtom(nd, "rtems.org", strlen("rtems.org")); |
---|
4749 | (void) nfsm_strtom(nd, rv, strlen(rv)); |
---|
4750 | } |
---|
4751 | #endif /* __rtems__ */ |
---|
4752 | NFSM_BUILD(tl, uint32_t *, NFSX_V4TIME); |
---|
4753 | verstime.tv_sec = 1293840000; /* Jan 1, 2011 */ |
---|
4754 | verstime.tv_nsec = 0; |
---|
4755 | txdr_nfsv4time(&verstime, tl); |
---|
4756 | nd->nd_flag |= ND_USEGSSNAME; |
---|
4757 | error = newnfs_request(nd, nmp, NULL, nrp, NULL, p, cred, |
---|
4758 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
4759 | NFSCL_DEBUG(1, "exchangeid err=%d reps=%d\n", error, |
---|
4760 | (int)nd->nd_repstat); |
---|
4761 | if (error != 0) |
---|
4762 | return (error); |
---|
4763 | if (nd->nd_repstat == 0) { |
---|
4764 | NFSM_DISSECT(tl, uint32_t *, 6 * NFSX_UNSIGNED + NFSX_HYPER); |
---|
4765 | len = fxdr_unsigned(int, *(tl + 7)); |
---|
4766 | if (len < 0 || len > NFSV4_OPAQUELIMIT) { |
---|
4767 | error = NFSERR_BADXDR; |
---|
4768 | goto nfsmout; |
---|
4769 | } |
---|
4770 | dsp = malloc(sizeof(struct nfsclds) + len + 1, M_NFSCLDS, |
---|
4771 | M_WAITOK | M_ZERO); |
---|
4772 | dsp->nfsclds_expire = NFSD_MONOSEC + clp->nfsc_renew; |
---|
4773 | dsp->nfsclds_servownlen = len; |
---|
4774 | dsp->nfsclds_sess.nfsess_clientid.lval[0] = *tl++; |
---|
4775 | dsp->nfsclds_sess.nfsess_clientid.lval[1] = *tl++; |
---|
4776 | dsp->nfsclds_sess.nfsess_sequenceid = |
---|
4777 | fxdr_unsigned(uint32_t, *tl++); |
---|
4778 | v41flags = fxdr_unsigned(uint32_t, *tl); |
---|
4779 | if ((v41flags & NFSV4EXCH_USEPNFSMDS) != 0 && |
---|
4780 | NFSHASPNFSOPT(nmp)) { |
---|
4781 | NFSCL_DEBUG(1, "set PNFS\n"); |
---|
4782 | NFSLOCKMNT(nmp); |
---|
4783 | nmp->nm_state |= NFSSTA_PNFS; |
---|
4784 | NFSUNLOCKMNT(nmp); |
---|
4785 | dsp->nfsclds_flags |= NFSCLDS_MDS; |
---|
4786 | } |
---|
4787 | if ((v41flags & NFSV4EXCH_USEPNFSDS) != 0) |
---|
4788 | dsp->nfsclds_flags |= NFSCLDS_DS; |
---|
4789 | if (len > 0) |
---|
4790 | nd->nd_repstat = nfsrv_mtostr(nd, |
---|
4791 | dsp->nfsclds_serverown, len); |
---|
4792 | if (nd->nd_repstat == 0) { |
---|
4793 | mtx_init(&dsp->nfsclds_mtx, "nfsds", NULL, MTX_DEF); |
---|
4794 | mtx_init(&dsp->nfsclds_sess.nfsess_mtx, "nfssession", |
---|
4795 | NULL, MTX_DEF); |
---|
4796 | nfscl_initsessionslots(&dsp->nfsclds_sess); |
---|
4797 | *dspp = dsp; |
---|
4798 | } else |
---|
4799 | free(dsp, M_NFSCLDS); |
---|
4800 | } |
---|
4801 | error = nd->nd_repstat; |
---|
4802 | nfsmout: |
---|
4803 | mbuf_freem(nd->nd_mrep); |
---|
4804 | return (error); |
---|
4805 | } |
---|
4806 | |
---|
4807 | /* |
---|
4808 | * Do the NFSv4.1 Create Session. |
---|
4809 | */ |
---|
4810 | int |
---|
4811 | nfsrpc_createsession(struct nfsmount *nmp, struct nfsclsession *sep, |
---|
4812 | struct nfssockreq *nrp, uint32_t sequenceid, int mds, struct ucred *cred, |
---|
4813 | NFSPROC_T *p) |
---|
4814 | { |
---|
4815 | uint32_t crflags, maxval, *tl; |
---|
4816 | struct nfsrv_descript nfsd; |
---|
4817 | struct nfsrv_descript *nd = &nfsd; |
---|
4818 | int error, irdcnt; |
---|
4819 | |
---|
4820 | /* Make sure nm_rsize, nm_wsize is set. */ |
---|
4821 | if (nmp->nm_rsize > NFS_MAXBSIZE || nmp->nm_rsize == 0) |
---|
4822 | nmp->nm_rsize = NFS_MAXBSIZE; |
---|
4823 | if (nmp->nm_wsize > NFS_MAXBSIZE || nmp->nm_wsize == 0) |
---|
4824 | nmp->nm_wsize = NFS_MAXBSIZE; |
---|
4825 | nfscl_reqstart(nd, NFSPROC_CREATESESSION, nmp, NULL, 0, NULL, NULL, 0, |
---|
4826 | 0); |
---|
4827 | NFSM_BUILD(tl, uint32_t *, 4 * NFSX_UNSIGNED); |
---|
4828 | *tl++ = sep->nfsess_clientid.lval[0]; |
---|
4829 | *tl++ = sep->nfsess_clientid.lval[1]; |
---|
4830 | *tl++ = txdr_unsigned(sequenceid); |
---|
4831 | crflags = (NFSMNT_RDONLY(nmp->nm_mountp) ? 0 : NFSV4CRSESS_PERSIST); |
---|
4832 | if (nfscl_enablecallb != 0 && nfs_numnfscbd > 0 && mds != 0) |
---|
4833 | crflags |= NFSV4CRSESS_CONNBACKCHAN; |
---|
4834 | *tl = txdr_unsigned(crflags); |
---|
4835 | |
---|
4836 | /* Fill in fore channel attributes. */ |
---|
4837 | NFSM_BUILD(tl, uint32_t *, 7 * NFSX_UNSIGNED); |
---|
4838 | *tl++ = 0; /* Header pad size */ |
---|
4839 | *tl++ = txdr_unsigned(nmp->nm_wsize + NFS_MAXXDR);/* Max request size */ |
---|
4840 | *tl++ = txdr_unsigned(nmp->nm_rsize + NFS_MAXXDR);/* Max reply size */ |
---|
4841 | *tl++ = txdr_unsigned(4096); /* Max response size cached */ |
---|
4842 | *tl++ = txdr_unsigned(20); /* Max operations */ |
---|
4843 | *tl++ = txdr_unsigned(64); /* Max slots */ |
---|
4844 | *tl = 0; /* No rdma ird */ |
---|
4845 | |
---|
4846 | /* Fill in back channel attributes. */ |
---|
4847 | NFSM_BUILD(tl, uint32_t *, 7 * NFSX_UNSIGNED); |
---|
4848 | *tl++ = 0; /* Header pad size */ |
---|
4849 | *tl++ = txdr_unsigned(10000); /* Max request size */ |
---|
4850 | *tl++ = txdr_unsigned(10000); /* Max response size */ |
---|
4851 | *tl++ = txdr_unsigned(4096); /* Max response size cached */ |
---|
4852 | *tl++ = txdr_unsigned(4); /* Max operations */ |
---|
4853 | *tl++ = txdr_unsigned(NFSV4_CBSLOTS); /* Max slots */ |
---|
4854 | *tl = 0; /* No rdma ird */ |
---|
4855 | |
---|
4856 | NFSM_BUILD(tl, uint32_t *, 8 * NFSX_UNSIGNED); |
---|
4857 | *tl++ = txdr_unsigned(NFS_CALLBCKPROG); /* Call back prog # */ |
---|
4858 | |
---|
4859 | /* Allow AUTH_SYS callbacks as uid, gid == 0. */ |
---|
4860 | *tl++ = txdr_unsigned(1); /* Auth_sys only */ |
---|
4861 | *tl++ = txdr_unsigned(AUTH_SYS); /* AUTH_SYS type */ |
---|
4862 | *tl++ = txdr_unsigned(nfsboottime.tv_sec); /* time stamp */ |
---|
4863 | *tl++ = 0; /* Null machine name */ |
---|
4864 | *tl++ = 0; /* Uid == 0 */ |
---|
4865 | *tl++ = 0; /* Gid == 0 */ |
---|
4866 | *tl = 0; /* No additional gids */ |
---|
4867 | nd->nd_flag |= ND_USEGSSNAME; |
---|
4868 | error = newnfs_request(nd, nmp, NULL, nrp, NULL, p, cred, NFS_PROG, |
---|
4869 | NFS_VER4, NULL, 1, NULL, NULL); |
---|
4870 | if (error != 0) |
---|
4871 | return (error); |
---|
4872 | if (nd->nd_repstat == 0) { |
---|
4873 | NFSM_DISSECT(tl, uint32_t *, NFSX_V4SESSIONID + |
---|
4874 | 2 * NFSX_UNSIGNED); |
---|
4875 | bcopy(tl, sep->nfsess_sessionid, NFSX_V4SESSIONID); |
---|
4876 | tl += NFSX_V4SESSIONID / NFSX_UNSIGNED; |
---|
4877 | sep->nfsess_sequenceid = fxdr_unsigned(uint32_t, *tl++); |
---|
4878 | crflags = fxdr_unsigned(uint32_t, *tl); |
---|
4879 | if ((crflags & NFSV4CRSESS_PERSIST) != 0 && mds != 0) { |
---|
4880 | NFSLOCKMNT(nmp); |
---|
4881 | nmp->nm_state |= NFSSTA_SESSPERSIST; |
---|
4882 | NFSUNLOCKMNT(nmp); |
---|
4883 | } |
---|
4884 | |
---|
4885 | /* Get the fore channel slot count. */ |
---|
4886 | NFSM_DISSECT(tl, uint32_t *, 7 * NFSX_UNSIGNED); |
---|
4887 | tl++; /* Skip the header pad size. */ |
---|
4888 | |
---|
4889 | /* Make sure nm_wsize is small enough. */ |
---|
4890 | maxval = fxdr_unsigned(uint32_t, *tl++); |
---|
4891 | while (maxval < nmp->nm_wsize + NFS_MAXXDR) { |
---|
4892 | if (nmp->nm_wsize > 8096) |
---|
4893 | nmp->nm_wsize /= 2; |
---|
4894 | else |
---|
4895 | break; |
---|
4896 | } |
---|
4897 | |
---|
4898 | /* Make sure nm_rsize is small enough. */ |
---|
4899 | maxval = fxdr_unsigned(uint32_t, *tl++); |
---|
4900 | while (maxval < nmp->nm_rsize + NFS_MAXXDR) { |
---|
4901 | if (nmp->nm_rsize > 8096) |
---|
4902 | nmp->nm_rsize /= 2; |
---|
4903 | else |
---|
4904 | break; |
---|
4905 | } |
---|
4906 | |
---|
4907 | sep->nfsess_maxcache = fxdr_unsigned(int, *tl++); |
---|
4908 | tl++; |
---|
4909 | sep->nfsess_foreslots = fxdr_unsigned(uint16_t, *tl++); |
---|
4910 | NFSCL_DEBUG(4, "fore slots=%d\n", (int)sep->nfsess_foreslots); |
---|
4911 | irdcnt = fxdr_unsigned(int, *tl); |
---|
4912 | if (irdcnt > 0) |
---|
4913 | NFSM_DISSECT(tl, uint32_t *, irdcnt * NFSX_UNSIGNED); |
---|
4914 | |
---|
4915 | /* and the back channel slot count. */ |
---|
4916 | NFSM_DISSECT(tl, uint32_t *, 7 * NFSX_UNSIGNED); |
---|
4917 | tl += 5; |
---|
4918 | sep->nfsess_backslots = fxdr_unsigned(uint16_t, *tl); |
---|
4919 | NFSCL_DEBUG(4, "back slots=%d\n", (int)sep->nfsess_backslots); |
---|
4920 | } |
---|
4921 | error = nd->nd_repstat; |
---|
4922 | nfsmout: |
---|
4923 | mbuf_freem(nd->nd_mrep); |
---|
4924 | return (error); |
---|
4925 | } |
---|
4926 | |
---|
4927 | /* |
---|
4928 | * Do the NFSv4.1 Destroy Session. |
---|
4929 | */ |
---|
4930 | int |
---|
4931 | nfsrpc_destroysession(struct nfsmount *nmp, struct nfsclclient *clp, |
---|
4932 | struct ucred *cred, NFSPROC_T *p) |
---|
4933 | { |
---|
4934 | uint32_t *tl; |
---|
4935 | struct nfsrv_descript nfsd; |
---|
4936 | struct nfsrv_descript *nd = &nfsd; |
---|
4937 | int error; |
---|
4938 | struct nfsclsession *tsep; |
---|
4939 | |
---|
4940 | nfscl_reqstart(nd, NFSPROC_DESTROYSESSION, nmp, NULL, 0, NULL, NULL, 0, |
---|
4941 | 0); |
---|
4942 | NFSM_BUILD(tl, uint32_t *, NFSX_V4SESSIONID); |
---|
4943 | tsep = nfsmnt_mdssession(nmp); |
---|
4944 | bcopy(tsep->nfsess_sessionid, tl, NFSX_V4SESSIONID); |
---|
4945 | nd->nd_flag |= ND_USEGSSNAME; |
---|
4946 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, |
---|
4947 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
4948 | if (error != 0) |
---|
4949 | return (error); |
---|
4950 | error = nd->nd_repstat; |
---|
4951 | mbuf_freem(nd->nd_mrep); |
---|
4952 | return (error); |
---|
4953 | } |
---|
4954 | |
---|
4955 | /* |
---|
4956 | * Do the NFSv4.1 Destroy Client. |
---|
4957 | */ |
---|
4958 | int |
---|
4959 | nfsrpc_destroyclient(struct nfsmount *nmp, struct nfsclclient *clp, |
---|
4960 | struct ucred *cred, NFSPROC_T *p) |
---|
4961 | { |
---|
4962 | uint32_t *tl; |
---|
4963 | struct nfsrv_descript nfsd; |
---|
4964 | struct nfsrv_descript *nd = &nfsd; |
---|
4965 | int error; |
---|
4966 | struct nfsclsession *tsep; |
---|
4967 | |
---|
4968 | nfscl_reqstart(nd, NFSPROC_DESTROYCLIENT, nmp, NULL, 0, NULL, NULL, 0, |
---|
4969 | 0); |
---|
4970 | NFSM_BUILD(tl, uint32_t *, 2 * NFSX_UNSIGNED); |
---|
4971 | tsep = nfsmnt_mdssession(nmp); |
---|
4972 | *tl++ = tsep->nfsess_clientid.lval[0]; |
---|
4973 | *tl = tsep->nfsess_clientid.lval[1]; |
---|
4974 | nd->nd_flag |= ND_USEGSSNAME; |
---|
4975 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, |
---|
4976 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
4977 | if (error != 0) |
---|
4978 | return (error); |
---|
4979 | error = nd->nd_repstat; |
---|
4980 | mbuf_freem(nd->nd_mrep); |
---|
4981 | return (error); |
---|
4982 | } |
---|
4983 | |
---|
4984 | /* |
---|
4985 | * Do the NFSv4.1 LayoutGet. |
---|
4986 | */ |
---|
4987 | static int |
---|
4988 | nfsrpc_layoutget(struct nfsmount *nmp, uint8_t *fhp, int fhlen, int iomode, |
---|
4989 | uint64_t offset, uint64_t len, uint64_t minlen, int layouttype, |
---|
4990 | int layoutlen, nfsv4stateid_t *stateidp, int *retonclosep, |
---|
4991 | struct nfsclflayouthead *flhp, struct ucred *cred, NFSPROC_T *p, |
---|
4992 | void *stuff) |
---|
4993 | { |
---|
4994 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
4995 | int error; |
---|
4996 | |
---|
4997 | nfscl_reqstart(nd, NFSPROC_LAYOUTGET, nmp, fhp, fhlen, NULL, NULL, 0, |
---|
4998 | 0); |
---|
4999 | nfsrv_setuplayoutget(nd, iomode, offset, len, minlen, stateidp, |
---|
5000 | layouttype, layoutlen, 0); |
---|
5001 | nd->nd_flag |= ND_USEGSSNAME; |
---|
5002 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, |
---|
5003 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
5004 | NFSCL_DEBUG(4, "layget err=%d st=%d\n", error, nd->nd_repstat); |
---|
5005 | if (error != 0) |
---|
5006 | return (error); |
---|
5007 | if (nd->nd_repstat == 0) |
---|
5008 | error = nfsrv_parselayoutget(nd, stateidp, retonclosep, flhp); |
---|
5009 | if (error == 0 && nd->nd_repstat != 0) |
---|
5010 | error = nd->nd_repstat; |
---|
5011 | mbuf_freem(nd->nd_mrep); |
---|
5012 | return (error); |
---|
5013 | } |
---|
5014 | |
---|
5015 | /* |
---|
5016 | * Do the NFSv4.1 Get Device Info. |
---|
5017 | */ |
---|
5018 | int |
---|
5019 | nfsrpc_getdeviceinfo(struct nfsmount *nmp, uint8_t *deviceid, int layouttype, |
---|
5020 | uint32_t *notifybitsp, struct nfscldevinfo **ndip, struct ucred *cred, |
---|
5021 | NFSPROC_T *p) |
---|
5022 | { |
---|
5023 | uint32_t cnt, *tl, vers, minorvers; |
---|
5024 | struct nfsrv_descript nfsd; |
---|
5025 | struct nfsrv_descript *nd = &nfsd; |
---|
5026 | struct sockaddr_in sin, ssin; |
---|
5027 | struct sockaddr_in6 sin6, ssin6; |
---|
5028 | struct nfsclds *dsp = NULL, **dspp, **gotdspp; |
---|
5029 | struct nfscldevinfo *ndi; |
---|
5030 | int addrcnt = 0, bitcnt, error, gotvers, i, isudp, j, stripecnt; |
---|
5031 | uint8_t stripeindex; |
---|
5032 | sa_family_t af, safilled; |
---|
5033 | |
---|
5034 | *ndip = NULL; |
---|
5035 | ndi = NULL; |
---|
5036 | gotdspp = NULL; |
---|
5037 | nfscl_reqstart(nd, NFSPROC_GETDEVICEINFO, nmp, NULL, 0, NULL, NULL, 0, |
---|
5038 | 0); |
---|
5039 | NFSM_BUILD(tl, uint32_t *, NFSX_V4DEVICEID + 3 * NFSX_UNSIGNED); |
---|
5040 | NFSBCOPY(deviceid, tl, NFSX_V4DEVICEID); |
---|
5041 | tl += (NFSX_V4DEVICEID / NFSX_UNSIGNED); |
---|
5042 | *tl++ = txdr_unsigned(layouttype); |
---|
5043 | *tl++ = txdr_unsigned(100000); |
---|
5044 | if (notifybitsp != NULL && *notifybitsp != 0) { |
---|
5045 | *tl = txdr_unsigned(1); /* One word of bits. */ |
---|
5046 | NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); |
---|
5047 | *tl = txdr_unsigned(*notifybitsp); |
---|
5048 | } else |
---|
5049 | *tl = txdr_unsigned(0); |
---|
5050 | nd->nd_flag |= ND_USEGSSNAME; |
---|
5051 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, |
---|
5052 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
5053 | if (error != 0) |
---|
5054 | return (error); |
---|
5055 | if (nd->nd_repstat == 0) { |
---|
5056 | NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED); |
---|
5057 | if (layouttype != fxdr_unsigned(int, *tl)) |
---|
5058 | printf("EEK! devinfo layout type not same!\n"); |
---|
5059 | if (layouttype == NFSLAYOUT_NFSV4_1_FILES) { |
---|
5060 | NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); |
---|
5061 | stripecnt = fxdr_unsigned(int, *tl); |
---|
5062 | NFSCL_DEBUG(4, "stripecnt=%d\n", stripecnt); |
---|
5063 | if (stripecnt < 1 || stripecnt > 4096) { |
---|
5064 | printf("pNFS File layout devinfo stripecnt %d:" |
---|
5065 | " out of range\n", stripecnt); |
---|
5066 | error = NFSERR_BADXDR; |
---|
5067 | goto nfsmout; |
---|
5068 | } |
---|
5069 | NFSM_DISSECT(tl, uint32_t *, (stripecnt + 1) * |
---|
5070 | NFSX_UNSIGNED); |
---|
5071 | addrcnt = fxdr_unsigned(int, *(tl + stripecnt)); |
---|
5072 | NFSCL_DEBUG(4, "addrcnt=%d\n", addrcnt); |
---|
5073 | if (addrcnt < 1 || addrcnt > 128) { |
---|
5074 | printf("NFS devinfo addrcnt %d: out of range\n", |
---|
5075 | addrcnt); |
---|
5076 | error = NFSERR_BADXDR; |
---|
5077 | goto nfsmout; |
---|
5078 | } |
---|
5079 | |
---|
5080 | /* |
---|
5081 | * Now we know how many stripe indices and addresses, so |
---|
5082 | * we can allocate the structure the correct size. |
---|
5083 | */ |
---|
5084 | i = (stripecnt * sizeof(uint8_t)) / |
---|
5085 | sizeof(struct nfsclds *) + 1; |
---|
5086 | NFSCL_DEBUG(4, "stripeindices=%d\n", i); |
---|
5087 | ndi = malloc(sizeof(*ndi) + (addrcnt + i) * |
---|
5088 | sizeof(struct nfsclds *), M_NFSDEVINFO, M_WAITOK | |
---|
5089 | M_ZERO); |
---|
5090 | NFSBCOPY(deviceid, ndi->nfsdi_deviceid, |
---|
5091 | NFSX_V4DEVICEID); |
---|
5092 | ndi->nfsdi_refcnt = 0; |
---|
5093 | ndi->nfsdi_flags = NFSDI_FILELAYOUT; |
---|
5094 | ndi->nfsdi_stripecnt = stripecnt; |
---|
5095 | ndi->nfsdi_addrcnt = addrcnt; |
---|
5096 | /* Fill in the stripe indices. */ |
---|
5097 | for (i = 0; i < stripecnt; i++) { |
---|
5098 | stripeindex = fxdr_unsigned(uint8_t, *tl++); |
---|
5099 | NFSCL_DEBUG(4, "stripeind=%d\n", stripeindex); |
---|
5100 | if (stripeindex >= addrcnt) { |
---|
5101 | printf("pNFS File Layout devinfo" |
---|
5102 | " stripeindex %d: too big\n", |
---|
5103 | (int)stripeindex); |
---|
5104 | error = NFSERR_BADXDR; |
---|
5105 | goto nfsmout; |
---|
5106 | } |
---|
5107 | nfsfldi_setstripeindex(ndi, i, stripeindex); |
---|
5108 | } |
---|
5109 | } else if (layouttype == NFSLAYOUT_FLEXFILE) { |
---|
5110 | /* For Flex File, we only get one address list. */ |
---|
5111 | ndi = malloc(sizeof(*ndi) + sizeof(struct nfsclds *), |
---|
5112 | M_NFSDEVINFO, M_WAITOK | M_ZERO); |
---|
5113 | NFSBCOPY(deviceid, ndi->nfsdi_deviceid, |
---|
5114 | NFSX_V4DEVICEID); |
---|
5115 | ndi->nfsdi_refcnt = 0; |
---|
5116 | ndi->nfsdi_flags = NFSDI_FLEXFILE; |
---|
5117 | addrcnt = ndi->nfsdi_addrcnt = 1; |
---|
5118 | } |
---|
5119 | |
---|
5120 | /* Now, dissect the server address(es). */ |
---|
5121 | safilled = AF_UNSPEC; |
---|
5122 | for (i = 0; i < addrcnt; i++) { |
---|
5123 | NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); |
---|
5124 | cnt = fxdr_unsigned(uint32_t, *tl); |
---|
5125 | if (cnt == 0) { |
---|
5126 | printf("NFS devinfo 0 len addrlist\n"); |
---|
5127 | error = NFSERR_BADXDR; |
---|
5128 | goto nfsmout; |
---|
5129 | } |
---|
5130 | dspp = nfsfldi_addr(ndi, i); |
---|
5131 | safilled = AF_UNSPEC; |
---|
5132 | for (j = 0; j < cnt; j++) { |
---|
5133 | error = nfsv4_getipaddr(nd, &sin, &sin6, &af, |
---|
5134 | &isudp); |
---|
5135 | if (error != 0 && error != EPERM) { |
---|
5136 | error = NFSERR_BADXDR; |
---|
5137 | goto nfsmout; |
---|
5138 | } |
---|
5139 | if (error == 0 && isudp == 0) { |
---|
5140 | /* |
---|
5141 | * The priority is: |
---|
5142 | * - Same address family. |
---|
5143 | * Save the address and dspp, so that |
---|
5144 | * the connection can be done after |
---|
5145 | * parsing is complete. |
---|
5146 | */ |
---|
5147 | if (safilled == AF_UNSPEC || |
---|
5148 | (af == nmp->nm_nam->sa_family && |
---|
5149 | safilled != nmp->nm_nam->sa_family) |
---|
5150 | ) { |
---|
5151 | if (af == AF_INET) |
---|
5152 | ssin = sin; |
---|
5153 | else |
---|
5154 | ssin6 = sin6; |
---|
5155 | safilled = af; |
---|
5156 | gotdspp = dspp; |
---|
5157 | } |
---|
5158 | } |
---|
5159 | } |
---|
5160 | } |
---|
5161 | |
---|
5162 | gotvers = NFS_VER4; /* Always NFSv4 for File Layout. */ |
---|
5163 | /* For Flex File, we will take one of the versions to use. */ |
---|
5164 | if (layouttype == NFSLAYOUT_FLEXFILE) { |
---|
5165 | NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); |
---|
5166 | j = fxdr_unsigned(int, *tl); |
---|
5167 | if (j < 1 || j > NFSDEV_MAXVERS) { |
---|
5168 | printf("pNFS: too many versions\n"); |
---|
5169 | error = NFSERR_BADXDR; |
---|
5170 | goto nfsmout; |
---|
5171 | } |
---|
5172 | gotvers = 0; |
---|
5173 | for (i = 0; i < j; i++) { |
---|
5174 | NFSM_DISSECT(tl, uint32_t *, 5 * NFSX_UNSIGNED); |
---|
5175 | vers = fxdr_unsigned(uint32_t, *tl++); |
---|
5176 | minorvers = fxdr_unsigned(uint32_t, *tl++); |
---|
5177 | if ((vers == NFS_VER4 && minorvers == |
---|
5178 | NFSV41_MINORVERSION) || (vers == NFS_VER3 && |
---|
5179 | gotvers == 0)) { |
---|
5180 | gotvers = vers; |
---|
5181 | /* We'll take this one. */ |
---|
5182 | ndi->nfsdi_versindex = i; |
---|
5183 | ndi->nfsdi_vers = vers; |
---|
5184 | ndi->nfsdi_minorvers = minorvers; |
---|
5185 | ndi->nfsdi_rsize = fxdr_unsigned( |
---|
5186 | uint32_t, *tl++); |
---|
5187 | ndi->nfsdi_wsize = fxdr_unsigned( |
---|
5188 | uint32_t, *tl++); |
---|
5189 | if (*tl == newnfs_true) |
---|
5190 | ndi->nfsdi_flags |= |
---|
5191 | NFSDI_TIGHTCOUPLED; |
---|
5192 | else |
---|
5193 | ndi->nfsdi_flags &= |
---|
5194 | ~NFSDI_TIGHTCOUPLED; |
---|
5195 | } |
---|
5196 | } |
---|
5197 | if (gotvers == 0) { |
---|
5198 | printf("pNFS: no NFSv3 or NFSv4.1\n"); |
---|
5199 | error = NFSERR_BADXDR; |
---|
5200 | goto nfsmout; |
---|
5201 | } |
---|
5202 | } |
---|
5203 | |
---|
5204 | /* And the notify bits. */ |
---|
5205 | NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); |
---|
5206 | bitcnt = fxdr_unsigned(int, *tl); |
---|
5207 | if (bitcnt > 0) { |
---|
5208 | NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); |
---|
5209 | if (notifybitsp != NULL) |
---|
5210 | *notifybitsp = |
---|
5211 | fxdr_unsigned(uint32_t, *tl); |
---|
5212 | } |
---|
5213 | if (safilled != AF_UNSPEC) { |
---|
5214 | KASSERT(ndi != NULL, ("ndi is NULL")); |
---|
5215 | *ndip = ndi; |
---|
5216 | } else |
---|
5217 | error = EPERM; |
---|
5218 | if (error == 0) { |
---|
5219 | /* |
---|
5220 | * Now we can do a TCP connection for the correct |
---|
5221 | * NFS version and IP address. |
---|
5222 | */ |
---|
5223 | error = nfsrpc_fillsa(nmp, &ssin, &ssin6, safilled, |
---|
5224 | gotvers, &dsp, p); |
---|
5225 | } |
---|
5226 | if (error == 0) { |
---|
5227 | KASSERT(gotdspp != NULL, ("gotdspp is NULL")); |
---|
5228 | *gotdspp = dsp; |
---|
5229 | } |
---|
5230 | } |
---|
5231 | if (nd->nd_repstat != 0 && error == 0) |
---|
5232 | error = nd->nd_repstat; |
---|
5233 | nfsmout: |
---|
5234 | if (error != 0 && ndi != NULL) |
---|
5235 | nfscl_freedevinfo(ndi); |
---|
5236 | mbuf_freem(nd->nd_mrep); |
---|
5237 | return (error); |
---|
5238 | } |
---|
5239 | |
---|
5240 | /* |
---|
5241 | * Do the NFSv4.1 LayoutCommit. |
---|
5242 | */ |
---|
5243 | int |
---|
5244 | nfsrpc_layoutcommit(struct nfsmount *nmp, uint8_t *fh, int fhlen, int reclaim, |
---|
5245 | uint64_t off, uint64_t len, uint64_t lastbyte, nfsv4stateid_t *stateidp, |
---|
5246 | int layouttype, struct ucred *cred, NFSPROC_T *p, void *stuff) |
---|
5247 | { |
---|
5248 | uint32_t *tl; |
---|
5249 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
5250 | int error; |
---|
5251 | |
---|
5252 | nfscl_reqstart(nd, NFSPROC_LAYOUTCOMMIT, nmp, fh, fhlen, NULL, NULL, |
---|
5253 | 0, 0); |
---|
5254 | NFSM_BUILD(tl, uint32_t *, 5 * NFSX_UNSIGNED + 3 * NFSX_HYPER + |
---|
5255 | NFSX_STATEID); |
---|
5256 | txdr_hyper(off, tl); |
---|
5257 | tl += 2; |
---|
5258 | txdr_hyper(len, tl); |
---|
5259 | tl += 2; |
---|
5260 | if (reclaim != 0) |
---|
5261 | *tl++ = newnfs_true; |
---|
5262 | else |
---|
5263 | *tl++ = newnfs_false; |
---|
5264 | *tl++ = txdr_unsigned(stateidp->seqid); |
---|
5265 | *tl++ = stateidp->other[0]; |
---|
5266 | *tl++ = stateidp->other[1]; |
---|
5267 | *tl++ = stateidp->other[2]; |
---|
5268 | *tl++ = newnfs_true; |
---|
5269 | if (lastbyte < off) |
---|
5270 | lastbyte = off; |
---|
5271 | else if (lastbyte >= (off + len)) |
---|
5272 | lastbyte = off + len - 1; |
---|
5273 | txdr_hyper(lastbyte, tl); |
---|
5274 | tl += 2; |
---|
5275 | *tl++ = newnfs_false; |
---|
5276 | *tl++ = txdr_unsigned(layouttype); |
---|
5277 | /* All supported layouts are 0 length. */ |
---|
5278 | *tl = txdr_unsigned(0); |
---|
5279 | nd->nd_flag |= ND_USEGSSNAME; |
---|
5280 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, |
---|
5281 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
5282 | if (error != 0) |
---|
5283 | return (error); |
---|
5284 | error = nd->nd_repstat; |
---|
5285 | mbuf_freem(nd->nd_mrep); |
---|
5286 | return (error); |
---|
5287 | } |
---|
5288 | |
---|
5289 | /* |
---|
5290 | * Do the NFSv4.1 LayoutReturn. |
---|
5291 | */ |
---|
5292 | int |
---|
5293 | nfsrpc_layoutreturn(struct nfsmount *nmp, uint8_t *fh, int fhlen, int reclaim, |
---|
5294 | int layouttype, uint32_t iomode, int layoutreturn, uint64_t offset, |
---|
5295 | uint64_t len, nfsv4stateid_t *stateidp, struct ucred *cred, NFSPROC_T *p, |
---|
5296 | uint32_t stat, uint32_t op, char *devid) |
---|
5297 | { |
---|
5298 | uint32_t *tl; |
---|
5299 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
5300 | uint64_t tu64; |
---|
5301 | int error; |
---|
5302 | |
---|
5303 | nfscl_reqstart(nd, NFSPROC_LAYOUTRETURN, nmp, fh, fhlen, NULL, NULL, |
---|
5304 | 0, 0); |
---|
5305 | NFSM_BUILD(tl, uint32_t *, 4 * NFSX_UNSIGNED); |
---|
5306 | if (reclaim != 0) |
---|
5307 | *tl++ = newnfs_true; |
---|
5308 | else |
---|
5309 | *tl++ = newnfs_false; |
---|
5310 | *tl++ = txdr_unsigned(layouttype); |
---|
5311 | *tl++ = txdr_unsigned(iomode); |
---|
5312 | *tl = txdr_unsigned(layoutreturn); |
---|
5313 | if (layoutreturn == NFSLAYOUTRETURN_FILE) { |
---|
5314 | NFSM_BUILD(tl, uint32_t *, 2 * NFSX_HYPER + NFSX_STATEID + |
---|
5315 | NFSX_UNSIGNED); |
---|
5316 | txdr_hyper(offset, tl); |
---|
5317 | tl += 2; |
---|
5318 | txdr_hyper(len, tl); |
---|
5319 | tl += 2; |
---|
5320 | NFSCL_DEBUG(4, "layoutret stseq=%d\n", (int)stateidp->seqid); |
---|
5321 | *tl++ = txdr_unsigned(stateidp->seqid); |
---|
5322 | *tl++ = stateidp->other[0]; |
---|
5323 | *tl++ = stateidp->other[1]; |
---|
5324 | *tl++ = stateidp->other[2]; |
---|
5325 | if (layouttype == NFSLAYOUT_NFSV4_1_FILES) |
---|
5326 | *tl = txdr_unsigned(0); |
---|
5327 | else if (layouttype == NFSLAYOUT_FLEXFILE) { |
---|
5328 | if (stat != 0) { |
---|
5329 | *tl = txdr_unsigned(2 * NFSX_HYPER + |
---|
5330 | NFSX_STATEID + NFSX_V4DEVICEID + 5 * |
---|
5331 | NFSX_UNSIGNED); |
---|
5332 | NFSM_BUILD(tl, uint32_t *, 2 * NFSX_HYPER + |
---|
5333 | NFSX_STATEID + NFSX_V4DEVICEID + 5 * |
---|
5334 | NFSX_UNSIGNED); |
---|
5335 | *tl++ = txdr_unsigned(1); /* One error. */ |
---|
5336 | tu64 = 0; /* Offset. */ |
---|
5337 | txdr_hyper(tu64, tl); tl += 2; |
---|
5338 | tu64 = UINT64_MAX; /* Length. */ |
---|
5339 | txdr_hyper(tu64, tl); tl += 2; |
---|
5340 | NFSBCOPY(stateidp, tl, NFSX_STATEID); |
---|
5341 | tl += (NFSX_STATEID / NFSX_UNSIGNED); |
---|
5342 | *tl++ = txdr_unsigned(1); /* One error. */ |
---|
5343 | NFSBCOPY(devid, tl, NFSX_V4DEVICEID); |
---|
5344 | tl += (NFSX_V4DEVICEID / NFSX_UNSIGNED); |
---|
5345 | *tl++ = txdr_unsigned(stat); |
---|
5346 | *tl++ = txdr_unsigned(op); |
---|
5347 | } else { |
---|
5348 | *tl = txdr_unsigned(2 * NFSX_UNSIGNED); |
---|
5349 | NFSM_BUILD(tl, uint32_t *, 2 * NFSX_UNSIGNED); |
---|
5350 | /* No ioerrs. */ |
---|
5351 | *tl++ = 0; |
---|
5352 | } |
---|
5353 | *tl = 0; /* No stats yet. */ |
---|
5354 | } |
---|
5355 | } |
---|
5356 | nd->nd_flag |= ND_USEGSSNAME; |
---|
5357 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, |
---|
5358 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
5359 | if (error != 0) |
---|
5360 | return (error); |
---|
5361 | if (nd->nd_repstat == 0) { |
---|
5362 | NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); |
---|
5363 | if (*tl != 0) { |
---|
5364 | NFSM_DISSECT(tl, uint32_t *, NFSX_STATEID); |
---|
5365 | stateidp->seqid = fxdr_unsigned(uint32_t, *tl++); |
---|
5366 | stateidp->other[0] = *tl++; |
---|
5367 | stateidp->other[1] = *tl++; |
---|
5368 | stateidp->other[2] = *tl; |
---|
5369 | } |
---|
5370 | } else |
---|
5371 | error = nd->nd_repstat; |
---|
5372 | nfsmout: |
---|
5373 | mbuf_freem(nd->nd_mrep); |
---|
5374 | return (error); |
---|
5375 | } |
---|
5376 | |
---|
5377 | /* |
---|
5378 | * Acquire a layout and devinfo, if possible. The caller must have acquired |
---|
5379 | * a reference count on the nfsclclient structure before calling this. |
---|
5380 | * Return the layout in lypp with a reference count on it, if successful. |
---|
5381 | */ |
---|
5382 | static int |
---|
5383 | nfsrpc_getlayout(struct nfsmount *nmp, vnode_t vp, struct nfsfh *nfhp, |
---|
5384 | int iomode, uint32_t *notifybitsp, nfsv4stateid_t *stateidp, uint64_t off, |
---|
5385 | struct nfscllayout **lypp, struct ucred *cred, NFSPROC_T *p) |
---|
5386 | { |
---|
5387 | struct nfscllayout *lyp; |
---|
5388 | struct nfsclflayout *flp; |
---|
5389 | struct nfsclflayouthead flh; |
---|
5390 | int error = 0, islocked, layoutlen, layouttype, recalled, retonclose; |
---|
5391 | nfsv4stateid_t stateid; |
---|
5392 | struct nfsclsession *tsep; |
---|
5393 | |
---|
5394 | *lypp = NULL; |
---|
5395 | if (NFSHASFLEXFILE(nmp)) |
---|
5396 | layouttype = NFSLAYOUT_FLEXFILE; |
---|
5397 | else |
---|
5398 | layouttype = NFSLAYOUT_NFSV4_1_FILES; |
---|
5399 | /* |
---|
5400 | * If lyp is returned non-NULL, there will be a refcnt (shared lock) |
---|
5401 | * on it, iff flp != NULL or a lock (exclusive lock) on it iff |
---|
5402 | * flp == NULL. |
---|
5403 | */ |
---|
5404 | lyp = nfscl_getlayout(nmp->nm_clp, nfhp->nfh_fh, nfhp->nfh_len, |
---|
5405 | off, &flp, &recalled); |
---|
5406 | islocked = 0; |
---|
5407 | if (lyp == NULL || flp == NULL) { |
---|
5408 | if (recalled != 0) |
---|
5409 | return (EIO); |
---|
5410 | LIST_INIT(&flh); |
---|
5411 | tsep = nfsmnt_mdssession(nmp); |
---|
5412 | layoutlen = tsep->nfsess_maxcache - |
---|
5413 | (NFSX_STATEID + 3 * NFSX_UNSIGNED); |
---|
5414 | if (lyp == NULL) { |
---|
5415 | stateid.seqid = 0; |
---|
5416 | stateid.other[0] = stateidp->other[0]; |
---|
5417 | stateid.other[1] = stateidp->other[1]; |
---|
5418 | stateid.other[2] = stateidp->other[2]; |
---|
5419 | error = nfsrpc_layoutget(nmp, nfhp->nfh_fh, |
---|
5420 | nfhp->nfh_len, iomode, (uint64_t)0, UINT64_MAX, |
---|
5421 | (uint64_t)0, layouttype, layoutlen, &stateid, |
---|
5422 | &retonclose, &flh, cred, p, NULL); |
---|
5423 | } else { |
---|
5424 | islocked = 1; |
---|
5425 | stateid.seqid = lyp->nfsly_stateid.seqid; |
---|
5426 | stateid.other[0] = lyp->nfsly_stateid.other[0]; |
---|
5427 | stateid.other[1] = lyp->nfsly_stateid.other[1]; |
---|
5428 | stateid.other[2] = lyp->nfsly_stateid.other[2]; |
---|
5429 | error = nfsrpc_layoutget(nmp, nfhp->nfh_fh, |
---|
5430 | nfhp->nfh_len, iomode, off, UINT64_MAX, |
---|
5431 | (uint64_t)0, layouttype, layoutlen, &stateid, |
---|
5432 | &retonclose, &flh, cred, p, NULL); |
---|
5433 | } |
---|
5434 | error = nfsrpc_layoutgetres(nmp, vp, nfhp->nfh_fh, |
---|
5435 | nfhp->nfh_len, &stateid, retonclose, notifybitsp, &lyp, |
---|
5436 | &flh, layouttype, error, NULL, cred, p); |
---|
5437 | if (error == 0) |
---|
5438 | *lypp = lyp; |
---|
5439 | else if (islocked != 0) |
---|
5440 | nfscl_rellayout(lyp, 1); |
---|
5441 | } else |
---|
5442 | *lypp = lyp; |
---|
5443 | return (error); |
---|
5444 | } |
---|
5445 | |
---|
5446 | /* |
---|
5447 | * Do a TCP connection plus exchange id and create session. |
---|
5448 | * If successful, a "struct nfsclds" is linked into the list for the |
---|
5449 | * mount point and a pointer to it is returned. |
---|
5450 | */ |
---|
5451 | static int |
---|
5452 | nfsrpc_fillsa(struct nfsmount *nmp, struct sockaddr_in *sin, |
---|
5453 | struct sockaddr_in6 *sin6, sa_family_t af, int vers, struct nfsclds **dspp, |
---|
5454 | NFSPROC_T *p) |
---|
5455 | { |
---|
5456 | struct sockaddr_in *msad, *sad; |
---|
5457 | struct sockaddr_in6 *msad6, *sad6; |
---|
5458 | struct nfsclclient *clp; |
---|
5459 | struct nfssockreq *nrp; |
---|
5460 | struct nfsclds *dsp, *tdsp; |
---|
5461 | int error; |
---|
5462 | enum nfsclds_state retv; |
---|
5463 | uint32_t sequenceid; |
---|
5464 | |
---|
5465 | KASSERT(nmp->nm_sockreq.nr_cred != NULL, |
---|
5466 | ("nfsrpc_fillsa: NULL nr_cred")); |
---|
5467 | NFSLOCKCLSTATE(); |
---|
5468 | clp = nmp->nm_clp; |
---|
5469 | NFSUNLOCKCLSTATE(); |
---|
5470 | if (clp == NULL) |
---|
5471 | return (EPERM); |
---|
5472 | if (af == AF_INET) { |
---|
5473 | NFSLOCKMNT(nmp); |
---|
5474 | /* |
---|
5475 | * Check to see if we already have a session for this |
---|
5476 | * address that is usable for a DS. |
---|
5477 | * Note that the MDS's address is in a different place |
---|
5478 | * than the sessions already acquired for DS's. |
---|
5479 | */ |
---|
5480 | msad = (struct sockaddr_in *)nmp->nm_sockreq.nr_nam; |
---|
5481 | tdsp = TAILQ_FIRST(&nmp->nm_sess); |
---|
5482 | while (tdsp != NULL) { |
---|
5483 | if (msad != NULL && msad->sin_family == AF_INET && |
---|
5484 | sin->sin_addr.s_addr == msad->sin_addr.s_addr && |
---|
5485 | sin->sin_port == msad->sin_port && |
---|
5486 | (tdsp->nfsclds_flags & NFSCLDS_DS) != 0 && |
---|
5487 | tdsp->nfsclds_sess.nfsess_defunct == 0) { |
---|
5488 | *dspp = tdsp; |
---|
5489 | NFSUNLOCKMNT(nmp); |
---|
5490 | NFSCL_DEBUG(4, "fnd same addr\n"); |
---|
5491 | return (0); |
---|
5492 | } |
---|
5493 | tdsp = TAILQ_NEXT(tdsp, nfsclds_list); |
---|
5494 | if (tdsp != NULL && tdsp->nfsclds_sockp != NULL) |
---|
5495 | msad = (struct sockaddr_in *) |
---|
5496 | tdsp->nfsclds_sockp->nr_nam; |
---|
5497 | else |
---|
5498 | msad = NULL; |
---|
5499 | } |
---|
5500 | NFSUNLOCKMNT(nmp); |
---|
5501 | |
---|
5502 | /* No IP address match, so look for new/trunked one. */ |
---|
5503 | sad = malloc(sizeof(*sad), M_SONAME, M_WAITOK | M_ZERO); |
---|
5504 | sad->sin_len = sizeof(*sad); |
---|
5505 | sad->sin_family = AF_INET; |
---|
5506 | sad->sin_port = sin->sin_port; |
---|
5507 | sad->sin_addr.s_addr = sin->sin_addr.s_addr; |
---|
5508 | nrp = malloc(sizeof(*nrp), M_NFSSOCKREQ, M_WAITOK | M_ZERO); |
---|
5509 | nrp->nr_nam = (struct sockaddr *)sad; |
---|
5510 | } else if (af == AF_INET6) { |
---|
5511 | NFSLOCKMNT(nmp); |
---|
5512 | /* |
---|
5513 | * Check to see if we already have a session for this |
---|
5514 | * address that is usable for a DS. |
---|
5515 | * Note that the MDS's address is in a different place |
---|
5516 | * than the sessions already acquired for DS's. |
---|
5517 | */ |
---|
5518 | msad6 = (struct sockaddr_in6 *)nmp->nm_sockreq.nr_nam; |
---|
5519 | tdsp = TAILQ_FIRST(&nmp->nm_sess); |
---|
5520 | while (tdsp != NULL) { |
---|
5521 | if (msad6 != NULL && msad6->sin6_family == AF_INET6 && |
---|
5522 | IN6_ARE_ADDR_EQUAL(&sin6->sin6_addr, |
---|
5523 | &msad6->sin6_addr) && |
---|
5524 | sin6->sin6_port == msad6->sin6_port && |
---|
5525 | (tdsp->nfsclds_flags & NFSCLDS_DS) != 0 && |
---|
5526 | tdsp->nfsclds_sess.nfsess_defunct == 0) { |
---|
5527 | *dspp = tdsp; |
---|
5528 | NFSUNLOCKMNT(nmp); |
---|
5529 | return (0); |
---|
5530 | } |
---|
5531 | tdsp = TAILQ_NEXT(tdsp, nfsclds_list); |
---|
5532 | if (tdsp != NULL && tdsp->nfsclds_sockp != NULL) |
---|
5533 | msad6 = (struct sockaddr_in6 *) |
---|
5534 | tdsp->nfsclds_sockp->nr_nam; |
---|
5535 | else |
---|
5536 | msad6 = NULL; |
---|
5537 | } |
---|
5538 | NFSUNLOCKMNT(nmp); |
---|
5539 | |
---|
5540 | /* No IP address match, so look for new/trunked one. */ |
---|
5541 | sad6 = malloc(sizeof(*sad6), M_SONAME, M_WAITOK | M_ZERO); |
---|
5542 | sad6->sin6_len = sizeof(*sad6); |
---|
5543 | sad6->sin6_family = AF_INET6; |
---|
5544 | sad6->sin6_port = sin6->sin6_port; |
---|
5545 | NFSBCOPY(&sin6->sin6_addr, &sad6->sin6_addr, |
---|
5546 | sizeof(struct in6_addr)); |
---|
5547 | nrp = malloc(sizeof(*nrp), M_NFSSOCKREQ, M_WAITOK | M_ZERO); |
---|
5548 | nrp->nr_nam = (struct sockaddr *)sad6; |
---|
5549 | } else |
---|
5550 | return (EPERM); |
---|
5551 | |
---|
5552 | nrp->nr_sotype = SOCK_STREAM; |
---|
5553 | mtx_init(&nrp->nr_mtx, "nfssock", NULL, MTX_DEF); |
---|
5554 | nrp->nr_prog = NFS_PROG; |
---|
5555 | nrp->nr_vers = vers; |
---|
5556 | |
---|
5557 | /* |
---|
5558 | * Use the credentials that were used for the mount, which are |
---|
5559 | * in nmp->nm_sockreq.nr_cred for newnfs_connect() etc. |
---|
5560 | * Ref. counting the credentials with crhold() is probably not |
---|
5561 | * necessary, since nm_sockreq.nr_cred won't be crfree()'d until |
---|
5562 | * unmount, but I did it anyhow. |
---|
5563 | */ |
---|
5564 | nrp->nr_cred = crhold(nmp->nm_sockreq.nr_cred); |
---|
5565 | error = newnfs_connect(nmp, nrp, NULL, p, 0); |
---|
5566 | NFSCL_DEBUG(3, "DS connect=%d\n", error); |
---|
5567 | |
---|
5568 | dsp = NULL; |
---|
5569 | /* Now, do the exchangeid and create session. */ |
---|
5570 | if (error == 0) { |
---|
5571 | if (vers == NFS_VER4) { |
---|
5572 | error = nfsrpc_exchangeid(nmp, clp, nrp, |
---|
5573 | NFSV4EXCH_USEPNFSDS, &dsp, nrp->nr_cred, p); |
---|
5574 | NFSCL_DEBUG(3, "DS exchangeid=%d\n", error); |
---|
5575 | if (error != 0) |
---|
5576 | newnfs_disconnect(nrp); |
---|
5577 | } else { |
---|
5578 | dsp = malloc(sizeof(struct nfsclds), M_NFSCLDS, |
---|
5579 | M_WAITOK | M_ZERO); |
---|
5580 | dsp->nfsclds_flags |= NFSCLDS_DS; |
---|
5581 | dsp->nfsclds_expire = INT32_MAX; /* No renews needed. */ |
---|
5582 | mtx_init(&dsp->nfsclds_mtx, "nfsds", NULL, MTX_DEF); |
---|
5583 | mtx_init(&dsp->nfsclds_sess.nfsess_mtx, "nfssession", |
---|
5584 | NULL, MTX_DEF); |
---|
5585 | } |
---|
5586 | } |
---|
5587 | if (error == 0) { |
---|
5588 | dsp->nfsclds_sockp = nrp; |
---|
5589 | if (vers == NFS_VER4) { |
---|
5590 | NFSLOCKMNT(nmp); |
---|
5591 | retv = nfscl_getsameserver(nmp, dsp, &tdsp, |
---|
5592 | &sequenceid); |
---|
5593 | NFSCL_DEBUG(3, "getsame ret=%d\n", retv); |
---|
5594 | if (retv == NFSDSP_USETHISSESSION && |
---|
5595 | nfscl_dssameconn != 0) { |
---|
5596 | NFSLOCKDS(tdsp); |
---|
5597 | tdsp->nfsclds_flags |= NFSCLDS_SAMECONN; |
---|
5598 | NFSUNLOCKDS(tdsp); |
---|
5599 | NFSUNLOCKMNT(nmp); |
---|
5600 | /* |
---|
5601 | * If there is already a session for this |
---|
5602 | * server, use it. |
---|
5603 | */ |
---|
5604 | (void)newnfs_disconnect(nrp); |
---|
5605 | nfscl_freenfsclds(dsp); |
---|
5606 | *dspp = tdsp; |
---|
5607 | return (0); |
---|
5608 | } |
---|
5609 | if (retv == NFSDSP_NOTFOUND) |
---|
5610 | sequenceid = |
---|
5611 | dsp->nfsclds_sess.nfsess_sequenceid; |
---|
5612 | NFSUNLOCKMNT(nmp); |
---|
5613 | error = nfsrpc_createsession(nmp, &dsp->nfsclds_sess, |
---|
5614 | nrp, sequenceid, 0, nrp->nr_cred, p); |
---|
5615 | NFSCL_DEBUG(3, "DS createsess=%d\n", error); |
---|
5616 | } |
---|
5617 | } else { |
---|
5618 | NFSFREECRED(nrp->nr_cred); |
---|
5619 | NFSFREEMUTEX(&nrp->nr_mtx); |
---|
5620 | free(nrp->nr_nam, M_SONAME); |
---|
5621 | free(nrp, M_NFSSOCKREQ); |
---|
5622 | } |
---|
5623 | if (error == 0) { |
---|
5624 | NFSCL_DEBUG(3, "add DS session\n"); |
---|
5625 | /* |
---|
5626 | * Put it at the end of the list. That way the list |
---|
5627 | * is ordered by when the entry was added. This matters |
---|
5628 | * since the one done first is the one that should be |
---|
5629 | * used for sequencid'ing any subsequent create sessions. |
---|
5630 | */ |
---|
5631 | NFSLOCKMNT(nmp); |
---|
5632 | TAILQ_INSERT_TAIL(&nmp->nm_sess, dsp, nfsclds_list); |
---|
5633 | NFSUNLOCKMNT(nmp); |
---|
5634 | *dspp = dsp; |
---|
5635 | } else if (dsp != NULL) { |
---|
5636 | newnfs_disconnect(nrp); |
---|
5637 | nfscl_freenfsclds(dsp); |
---|
5638 | } |
---|
5639 | return (error); |
---|
5640 | } |
---|
5641 | |
---|
5642 | /* |
---|
5643 | * Do the NFSv4.1 Reclaim Complete. |
---|
5644 | */ |
---|
5645 | int |
---|
5646 | nfsrpc_reclaimcomplete(struct nfsmount *nmp, struct ucred *cred, NFSPROC_T *p) |
---|
5647 | { |
---|
5648 | uint32_t *tl; |
---|
5649 | struct nfsrv_descript nfsd; |
---|
5650 | struct nfsrv_descript *nd = &nfsd; |
---|
5651 | int error; |
---|
5652 | |
---|
5653 | nfscl_reqstart(nd, NFSPROC_RECLAIMCOMPL, nmp, NULL, 0, NULL, NULL, 0, |
---|
5654 | 0); |
---|
5655 | NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); |
---|
5656 | *tl = newnfs_false; |
---|
5657 | nd->nd_flag |= ND_USEGSSNAME; |
---|
5658 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, NULL, p, cred, |
---|
5659 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
5660 | if (error != 0) |
---|
5661 | return (error); |
---|
5662 | error = nd->nd_repstat; |
---|
5663 | mbuf_freem(nd->nd_mrep); |
---|
5664 | return (error); |
---|
5665 | } |
---|
5666 | |
---|
5667 | /* |
---|
5668 | * Initialize the slot tables for a session. |
---|
5669 | */ |
---|
5670 | static void |
---|
5671 | nfscl_initsessionslots(struct nfsclsession *sep) |
---|
5672 | { |
---|
5673 | int i; |
---|
5674 | |
---|
5675 | for (i = 0; i < NFSV4_CBSLOTS; i++) { |
---|
5676 | if (sep->nfsess_cbslots[i].nfssl_reply != NULL) |
---|
5677 | m_freem(sep->nfsess_cbslots[i].nfssl_reply); |
---|
5678 | NFSBZERO(&sep->nfsess_cbslots[i], sizeof(struct nfsslot)); |
---|
5679 | } |
---|
5680 | for (i = 0; i < 64; i++) |
---|
5681 | sep->nfsess_slotseq[i] = 0; |
---|
5682 | sep->nfsess_slots = 0; |
---|
5683 | } |
---|
5684 | |
---|
5685 | /* |
---|
5686 | * Called to try and do an I/O operation via an NFSv4.1 Data Server (DS). |
---|
5687 | */ |
---|
5688 | int |
---|
5689 | nfscl_doiods(vnode_t vp, struct uio *uiop, int *iomode, int *must_commit, |
---|
5690 | uint32_t rwaccess, int docommit, struct ucred *cred, NFSPROC_T *p) |
---|
5691 | { |
---|
5692 | struct nfsnode *np = VTONFS(vp); |
---|
5693 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
5694 | struct nfscllayout *layp; |
---|
5695 | struct nfscldevinfo *dip; |
---|
5696 | struct nfsclflayout *rflp; |
---|
5697 | struct mbuf *m; |
---|
5698 | struct nfsclwritedsdorpc *drpc, *tdrpc; |
---|
5699 | nfsv4stateid_t stateid; |
---|
5700 | struct ucred *newcred; |
---|
5701 | uint64_t lastbyte, len, off, oresid, xfer; |
---|
5702 | int eof, error, firstmirror, i, iolaymode, mirrorcnt, recalled, timo; |
---|
5703 | void *lckp; |
---|
5704 | uint8_t *dev; |
---|
5705 | void *iovbase = NULL; |
---|
5706 | size_t iovlen = 0; |
---|
5707 | off_t offs = 0; |
---|
5708 | ssize_t resid = 0; |
---|
5709 | |
---|
5710 | if (!NFSHASPNFS(nmp) || nfscl_enablecallb == 0 || nfs_numnfscbd == 0 || |
---|
5711 | (np->n_flag & NNOLAYOUT) != 0) |
---|
5712 | return (EIO); |
---|
5713 | /* Now, get a reference cnt on the clientid for this mount. */ |
---|
5714 | if (nfscl_getref(nmp) == 0) |
---|
5715 | return (EIO); |
---|
5716 | |
---|
5717 | /* Find an appropriate stateid. */ |
---|
5718 | newcred = NFSNEWCRED(cred); |
---|
5719 | error = nfscl_getstateid(vp, np->n_fhp->nfh_fh, np->n_fhp->nfh_len, |
---|
5720 | rwaccess, 1, newcred, p, &stateid, &lckp); |
---|
5721 | if (error != 0) { |
---|
5722 | NFSFREECRED(newcred); |
---|
5723 | nfscl_relref(nmp); |
---|
5724 | return (error); |
---|
5725 | } |
---|
5726 | /* Search for a layout for this file. */ |
---|
5727 | off = uiop->uio_offset; |
---|
5728 | layp = nfscl_getlayout(nmp->nm_clp, np->n_fhp->nfh_fh, |
---|
5729 | np->n_fhp->nfh_len, off, &rflp, &recalled); |
---|
5730 | if (layp == NULL || rflp == NULL) { |
---|
5731 | if (recalled != 0) { |
---|
5732 | NFSFREECRED(newcred); |
---|
5733 | nfscl_relref(nmp); |
---|
5734 | return (EIO); |
---|
5735 | } |
---|
5736 | if (layp != NULL) { |
---|
5737 | nfscl_rellayout(layp, (rflp == NULL) ? 1 : 0); |
---|
5738 | layp = NULL; |
---|
5739 | } |
---|
5740 | /* Try and get a Layout, if it is supported. */ |
---|
5741 | if (rwaccess == NFSV4OPEN_ACCESSWRITE || |
---|
5742 | (np->n_flag & NWRITEOPENED) != 0) |
---|
5743 | iolaymode = NFSLAYOUTIOMODE_RW; |
---|
5744 | else |
---|
5745 | iolaymode = NFSLAYOUTIOMODE_READ; |
---|
5746 | error = nfsrpc_getlayout(nmp, vp, np->n_fhp, iolaymode, |
---|
5747 | NULL, &stateid, off, &layp, newcred, p); |
---|
5748 | if (error != 0) { |
---|
5749 | NFSLOCKNODE(np); |
---|
5750 | np->n_flag |= NNOLAYOUT; |
---|
5751 | NFSUNLOCKNODE(np); |
---|
5752 | if (lckp != NULL) |
---|
5753 | nfscl_lockderef(lckp); |
---|
5754 | NFSFREECRED(newcred); |
---|
5755 | if (layp != NULL) |
---|
5756 | nfscl_rellayout(layp, 0); |
---|
5757 | nfscl_relref(nmp); |
---|
5758 | return (error); |
---|
5759 | } |
---|
5760 | } |
---|
5761 | |
---|
5762 | /* |
---|
5763 | * Loop around finding a layout that works for the first part of |
---|
5764 | * this I/O operation, and then call the function that actually |
---|
5765 | * does the RPC. |
---|
5766 | */ |
---|
5767 | eof = 0; |
---|
5768 | len = (uint64_t)uiop->uio_resid; |
---|
5769 | while (len > 0 && error == 0 && eof == 0) { |
---|
5770 | off = uiop->uio_offset; |
---|
5771 | error = nfscl_findlayoutforio(layp, off, rwaccess, &rflp); |
---|
5772 | if (error == 0) { |
---|
5773 | oresid = xfer = (uint64_t)uiop->uio_resid; |
---|
5774 | if (xfer > (rflp->nfsfl_end - rflp->nfsfl_off)) |
---|
5775 | xfer = rflp->nfsfl_end - rflp->nfsfl_off; |
---|
5776 | /* |
---|
5777 | * For Flex File layout with mirrored DSs, select one |
---|
5778 | * of them at random for reads. For writes and commits, |
---|
5779 | * do all mirrors. |
---|
5780 | */ |
---|
5781 | m = NULL; |
---|
5782 | tdrpc = drpc = NULL; |
---|
5783 | firstmirror = 0; |
---|
5784 | mirrorcnt = 1; |
---|
5785 | if ((layp->nfsly_flags & NFSLY_FLEXFILE) != 0 && |
---|
5786 | (mirrorcnt = rflp->nfsfl_mirrorcnt) > 1) { |
---|
5787 | if (rwaccess == NFSV4OPEN_ACCESSREAD) { |
---|
5788 | firstmirror = arc4random() % mirrorcnt; |
---|
5789 | mirrorcnt = firstmirror + 1; |
---|
5790 | } else { |
---|
5791 | if (docommit == 0) { |
---|
5792 | /* |
---|
5793 | * Save values, so uiop can be |
---|
5794 | * rolled back upon a write |
---|
5795 | * error. |
---|
5796 | */ |
---|
5797 | offs = uiop->uio_offset; |
---|
5798 | resid = uiop->uio_resid; |
---|
5799 | iovbase = |
---|
5800 | uiop->uio_iov->iov_base; |
---|
5801 | iovlen = uiop->uio_iov->iov_len; |
---|
5802 | m = nfsm_uiombuflist(uiop, len, |
---|
5803 | NULL, NULL); |
---|
5804 | } |
---|
5805 | tdrpc = drpc = malloc(sizeof(*drpc) * |
---|
5806 | (mirrorcnt - 1), M_TEMP, M_WAITOK | |
---|
5807 | M_ZERO); |
---|
5808 | } |
---|
5809 | } |
---|
5810 | for (i = firstmirror; i < mirrorcnt && error == 0; i++){ |
---|
5811 | if ((layp->nfsly_flags & NFSLY_FLEXFILE) != 0) { |
---|
5812 | dev = rflp->nfsfl_ffm[i].dev; |
---|
5813 | dip = nfscl_getdevinfo(nmp->nm_clp, dev, |
---|
5814 | rflp->nfsfl_ffm[i].devp); |
---|
5815 | } else { |
---|
5816 | dev = rflp->nfsfl_dev; |
---|
5817 | dip = nfscl_getdevinfo(nmp->nm_clp, dev, |
---|
5818 | rflp->nfsfl_devp); |
---|
5819 | } |
---|
5820 | if (dip != NULL) { |
---|
5821 | if ((rflp->nfsfl_flags & NFSFL_FLEXFILE) |
---|
5822 | != 0) |
---|
5823 | error = nfscl_dofflayoutio(vp, |
---|
5824 | uiop, iomode, must_commit, |
---|
5825 | &eof, &stateid, rwaccess, |
---|
5826 | dip, layp, rflp, off, xfer, |
---|
5827 | i, docommit, m, tdrpc, |
---|
5828 | newcred, p); |
---|
5829 | else |
---|
5830 | error = nfscl_doflayoutio(vp, |
---|
5831 | uiop, iomode, must_commit, |
---|
5832 | &eof, &stateid, rwaccess, |
---|
5833 | dip, layp, rflp, off, xfer, |
---|
5834 | docommit, newcred, p); |
---|
5835 | nfscl_reldevinfo(dip); |
---|
5836 | } else |
---|
5837 | error = EIO; |
---|
5838 | tdrpc++; |
---|
5839 | } |
---|
5840 | if (m != NULL) |
---|
5841 | m_freem(m); |
---|
5842 | tdrpc = drpc; |
---|
5843 | timo = hz / 50; /* Wait for 20msec. */ |
---|
5844 | if (timo < 1) |
---|
5845 | timo = 1; |
---|
5846 | for (i = firstmirror; i < mirrorcnt - 1 && |
---|
5847 | tdrpc != NULL; i++, tdrpc++) { |
---|
5848 | /* |
---|
5849 | * For the unused drpc entries, both inprog and |
---|
5850 | * err == 0, so this loop won't break. |
---|
5851 | */ |
---|
5852 | while (tdrpc->inprog != 0 && tdrpc->done == 0) |
---|
5853 | tsleep(&tdrpc->tsk, PVFS, "clrpcio", |
---|
5854 | timo); |
---|
5855 | if (error == 0 && tdrpc->err != 0) |
---|
5856 | error = tdrpc->err; |
---|
5857 | } |
---|
5858 | free(drpc, M_TEMP); |
---|
5859 | if (error == 0) { |
---|
5860 | if (mirrorcnt > 1 && rwaccess == |
---|
5861 | NFSV4OPEN_ACCESSWRITE && docommit == 0) { |
---|
5862 | NFSLOCKCLSTATE(); |
---|
5863 | layp->nfsly_flags |= NFSLY_WRITTEN; |
---|
5864 | NFSUNLOCKCLSTATE(); |
---|
5865 | } |
---|
5866 | lastbyte = off + xfer - 1; |
---|
5867 | NFSLOCKCLSTATE(); |
---|
5868 | if (lastbyte > layp->nfsly_lastbyte) |
---|
5869 | layp->nfsly_lastbyte = lastbyte; |
---|
5870 | NFSUNLOCKCLSTATE(); |
---|
5871 | } else if (error == NFSERR_OPENMODE && |
---|
5872 | rwaccess == NFSV4OPEN_ACCESSREAD) { |
---|
5873 | NFSLOCKMNT(nmp); |
---|
5874 | nmp->nm_state |= NFSSTA_OPENMODE; |
---|
5875 | NFSUNLOCKMNT(nmp); |
---|
5876 | } else |
---|
5877 | error = EIO; |
---|
5878 | if (error == 0) |
---|
5879 | len -= (oresid - (uint64_t)uiop->uio_resid); |
---|
5880 | else if (mirrorcnt > 1 && rwaccess == |
---|
5881 | NFSV4OPEN_ACCESSWRITE && docommit == 0) { |
---|
5882 | /* |
---|
5883 | * In case the rpc gets retried, roll the |
---|
5884 | * uio fields changed by nfsm_uiombuflist() |
---|
5885 | * back. |
---|
5886 | */ |
---|
5887 | uiop->uio_offset = offs; |
---|
5888 | uiop->uio_resid = resid; |
---|
5889 | uiop->uio_iov->iov_base = iovbase; |
---|
5890 | uiop->uio_iov->iov_len = iovlen; |
---|
5891 | } |
---|
5892 | } |
---|
5893 | } |
---|
5894 | if (lckp != NULL) |
---|
5895 | nfscl_lockderef(lckp); |
---|
5896 | NFSFREECRED(newcred); |
---|
5897 | nfscl_rellayout(layp, 0); |
---|
5898 | nfscl_relref(nmp); |
---|
5899 | return (error); |
---|
5900 | } |
---|
5901 | |
---|
5902 | /* |
---|
5903 | * Make a copy of the mbuf chain and add an mbuf for null padding, as required. |
---|
5904 | */ |
---|
5905 | static struct mbuf * |
---|
5906 | nfsm_copym(struct mbuf *m, int off, int xfer) |
---|
5907 | { |
---|
5908 | struct mbuf *m2, *m3, *m4; |
---|
5909 | uint32_t *tl; |
---|
5910 | int rem; |
---|
5911 | |
---|
5912 | m2 = m_copym(m, off, xfer, M_WAITOK); |
---|
5913 | rem = NFSM_RNDUP(xfer) - xfer; |
---|
5914 | if (rem > 0) { |
---|
5915 | /* |
---|
5916 | * The zero padding to a multiple of 4 bytes is required by |
---|
5917 | * the XDR. So that the mbufs copied by reference aren't |
---|
5918 | * modified, add an mbuf with the zero'd bytes to the list. |
---|
5919 | * rem will be a maximum of 3, so one zero'd uint32_t is |
---|
5920 | * sufficient. |
---|
5921 | */ |
---|
5922 | m3 = m2; |
---|
5923 | while (m3->m_next != NULL) |
---|
5924 | m3 = m3->m_next; |
---|
5925 | NFSMGET(m4); |
---|
5926 | tl = NFSMTOD(m4, uint32_t *); |
---|
5927 | *tl = 0; |
---|
5928 | mbuf_setlen(m4, rem); |
---|
5929 | mbuf_setnext(m3, m4); |
---|
5930 | } |
---|
5931 | return (m2); |
---|
5932 | } |
---|
5933 | |
---|
5934 | /* |
---|
5935 | * Find a file layout that will handle the first bytes of the requested |
---|
5936 | * range and return the information from it needed to the I/O operation. |
---|
5937 | */ |
---|
5938 | int |
---|
5939 | nfscl_findlayoutforio(struct nfscllayout *lyp, uint64_t off, uint32_t rwaccess, |
---|
5940 | struct nfsclflayout **retflpp) |
---|
5941 | { |
---|
5942 | struct nfsclflayout *flp, *nflp, *rflp; |
---|
5943 | uint32_t rw; |
---|
5944 | |
---|
5945 | rflp = NULL; |
---|
5946 | rw = rwaccess; |
---|
5947 | /* For reading, do the Read list first and then the Write list. */ |
---|
5948 | do { |
---|
5949 | if (rw == NFSV4OPEN_ACCESSREAD) |
---|
5950 | flp = LIST_FIRST(&lyp->nfsly_flayread); |
---|
5951 | else |
---|
5952 | flp = LIST_FIRST(&lyp->nfsly_flayrw); |
---|
5953 | while (flp != NULL) { |
---|
5954 | nflp = LIST_NEXT(flp, nfsfl_list); |
---|
5955 | if (flp->nfsfl_off > off) |
---|
5956 | break; |
---|
5957 | if (flp->nfsfl_end > off && |
---|
5958 | (rflp == NULL || rflp->nfsfl_end < flp->nfsfl_end)) |
---|
5959 | rflp = flp; |
---|
5960 | flp = nflp; |
---|
5961 | } |
---|
5962 | if (rw == NFSV4OPEN_ACCESSREAD) |
---|
5963 | rw = NFSV4OPEN_ACCESSWRITE; |
---|
5964 | else |
---|
5965 | rw = 0; |
---|
5966 | } while (rw != 0); |
---|
5967 | if (rflp != NULL) { |
---|
5968 | /* This one covers the most bytes starting at off. */ |
---|
5969 | *retflpp = rflp; |
---|
5970 | return (0); |
---|
5971 | } |
---|
5972 | return (EIO); |
---|
5973 | } |
---|
5974 | |
---|
5975 | /* |
---|
5976 | * Do I/O using an NFSv4.1 file layout. |
---|
5977 | */ |
---|
5978 | static int |
---|
5979 | nfscl_doflayoutio(vnode_t vp, struct uio *uiop, int *iomode, int *must_commit, |
---|
5980 | int *eofp, nfsv4stateid_t *stateidp, int rwflag, struct nfscldevinfo *dp, |
---|
5981 | struct nfscllayout *lyp, struct nfsclflayout *flp, uint64_t off, |
---|
5982 | uint64_t len, int docommit, struct ucred *cred, NFSPROC_T *p) |
---|
5983 | { |
---|
5984 | uint64_t io_off, rel_off, stripe_unit_size, transfer, xfer; |
---|
5985 | int commit_thru_mds, error, stripe_index, stripe_pos; |
---|
5986 | struct nfsnode *np; |
---|
5987 | struct nfsfh *fhp; |
---|
5988 | struct nfsclds **dspp; |
---|
5989 | |
---|
5990 | np = VTONFS(vp); |
---|
5991 | rel_off = off - flp->nfsfl_patoff; |
---|
5992 | stripe_unit_size = (flp->nfsfl_util >> 6) & 0x3ffffff; |
---|
5993 | stripe_pos = (rel_off / stripe_unit_size + flp->nfsfl_stripe1) % |
---|
5994 | dp->nfsdi_stripecnt; |
---|
5995 | transfer = stripe_unit_size - (rel_off % stripe_unit_size); |
---|
5996 | error = 0; |
---|
5997 | |
---|
5998 | /* Loop around, doing I/O for each stripe unit. */ |
---|
5999 | while (len > 0 && error == 0) { |
---|
6000 | stripe_index = nfsfldi_stripeindex(dp, stripe_pos); |
---|
6001 | dspp = nfsfldi_addr(dp, stripe_index); |
---|
6002 | if (len > transfer && docommit == 0) |
---|
6003 | xfer = transfer; |
---|
6004 | else |
---|
6005 | xfer = len; |
---|
6006 | if ((flp->nfsfl_util & NFSFLAYUTIL_DENSE) != 0) { |
---|
6007 | /* Dense layout. */ |
---|
6008 | if (stripe_pos >= flp->nfsfl_fhcnt) |
---|
6009 | return (EIO); |
---|
6010 | fhp = flp->nfsfl_fh[stripe_pos]; |
---|
6011 | io_off = (rel_off / (stripe_unit_size * |
---|
6012 | dp->nfsdi_stripecnt)) * stripe_unit_size + |
---|
6013 | rel_off % stripe_unit_size; |
---|
6014 | } else { |
---|
6015 | /* Sparse layout. */ |
---|
6016 | if (flp->nfsfl_fhcnt > 1) { |
---|
6017 | if (stripe_index >= flp->nfsfl_fhcnt) |
---|
6018 | return (EIO); |
---|
6019 | fhp = flp->nfsfl_fh[stripe_index]; |
---|
6020 | } else if (flp->nfsfl_fhcnt == 1) |
---|
6021 | fhp = flp->nfsfl_fh[0]; |
---|
6022 | else |
---|
6023 | fhp = np->n_fhp; |
---|
6024 | io_off = off; |
---|
6025 | } |
---|
6026 | if ((flp->nfsfl_util & NFSFLAYUTIL_COMMIT_THRU_MDS) != 0) { |
---|
6027 | commit_thru_mds = 1; |
---|
6028 | if (docommit != 0) |
---|
6029 | error = EIO; |
---|
6030 | } else { |
---|
6031 | commit_thru_mds = 0; |
---|
6032 | NFSLOCKNODE(np); |
---|
6033 | np->n_flag |= NDSCOMMIT; |
---|
6034 | NFSUNLOCKNODE(np); |
---|
6035 | } |
---|
6036 | if (docommit != 0) { |
---|
6037 | if (error == 0) |
---|
6038 | error = nfsrpc_commitds(vp, io_off, xfer, |
---|
6039 | *dspp, fhp, 0, 0, cred, p); |
---|
6040 | if (error == 0) { |
---|
6041 | /* |
---|
6042 | * Set both eof and uio_resid = 0 to end any |
---|
6043 | * loops. |
---|
6044 | */ |
---|
6045 | *eofp = 1; |
---|
6046 | uiop->uio_resid = 0; |
---|
6047 | } else { |
---|
6048 | NFSLOCKNODE(np); |
---|
6049 | np->n_flag &= ~NDSCOMMIT; |
---|
6050 | NFSUNLOCKNODE(np); |
---|
6051 | } |
---|
6052 | } else if (rwflag == NFSV4OPEN_ACCESSREAD) |
---|
6053 | error = nfsrpc_readds(vp, uiop, stateidp, eofp, *dspp, |
---|
6054 | io_off, xfer, fhp, 0, 0, 0, cred, p); |
---|
6055 | else { |
---|
6056 | error = nfsrpc_writeds(vp, uiop, iomode, must_commit, |
---|
6057 | stateidp, *dspp, io_off, xfer, fhp, commit_thru_mds, |
---|
6058 | 0, 0, 0, cred, p); |
---|
6059 | if (error == 0) { |
---|
6060 | NFSLOCKCLSTATE(); |
---|
6061 | lyp->nfsly_flags |= NFSLY_WRITTEN; |
---|
6062 | NFSUNLOCKCLSTATE(); |
---|
6063 | } |
---|
6064 | } |
---|
6065 | if (error == 0) { |
---|
6066 | transfer = stripe_unit_size; |
---|
6067 | stripe_pos = (stripe_pos + 1) % dp->nfsdi_stripecnt; |
---|
6068 | len -= xfer; |
---|
6069 | off += xfer; |
---|
6070 | } |
---|
6071 | } |
---|
6072 | return (error); |
---|
6073 | } |
---|
6074 | |
---|
6075 | /* |
---|
6076 | * Do I/O using an NFSv4.1 flex file layout. |
---|
6077 | */ |
---|
6078 | static int |
---|
6079 | nfscl_dofflayoutio(vnode_t vp, struct uio *uiop, int *iomode, int *must_commit, |
---|
6080 | int *eofp, nfsv4stateid_t *stateidp, int rwflag, struct nfscldevinfo *dp, |
---|
6081 | struct nfscllayout *lyp, struct nfsclflayout *flp, uint64_t off, |
---|
6082 | uint64_t len, int mirror, int docommit, struct mbuf *mp, |
---|
6083 | struct nfsclwritedsdorpc *drpc, struct ucred *cred, NFSPROC_T *p) |
---|
6084 | { |
---|
6085 | uint64_t transfer, xfer; |
---|
6086 | int error, rel_off; |
---|
6087 | struct nfsnode *np; |
---|
6088 | struct nfsfh *fhp; |
---|
6089 | struct nfsclds **dspp; |
---|
6090 | struct ucred *tcred; |
---|
6091 | struct mbuf *m; |
---|
6092 | |
---|
6093 | np = VTONFS(vp); |
---|
6094 | error = 0; |
---|
6095 | rel_off = 0; |
---|
6096 | NFSCL_DEBUG(4, "nfscl_dofflayoutio: off=%ju len=%ju\n", (uintmax_t)off, |
---|
6097 | (uintmax_t)len); |
---|
6098 | /* Loop around, doing I/O for each stripe unit. */ |
---|
6099 | while (len > 0 && error == 0) { |
---|
6100 | dspp = nfsfldi_addr(dp, 0); |
---|
6101 | fhp = flp->nfsfl_ffm[mirror].fh[dp->nfsdi_versindex]; |
---|
6102 | stateidp = &flp->nfsfl_ffm[mirror].st; |
---|
6103 | NFSCL_DEBUG(4, "mirror=%d vind=%d fhlen=%d st.seqid=0x%x\n", |
---|
6104 | mirror, dp->nfsdi_versindex, fhp->nfh_len, stateidp->seqid); |
---|
6105 | if ((dp->nfsdi_flags & NFSDI_TIGHTCOUPLED) == 0) { |
---|
6106 | tcred = NFSNEWCRED(cred); |
---|
6107 | tcred->cr_uid = flp->nfsfl_ffm[mirror].user; |
---|
6108 | tcred->cr_groups[0] = flp->nfsfl_ffm[mirror].group; |
---|
6109 | tcred->cr_ngroups = 1; |
---|
6110 | } else |
---|
6111 | tcred = cred; |
---|
6112 | if (rwflag == NFSV4OPEN_ACCESSREAD) |
---|
6113 | transfer = dp->nfsdi_rsize; |
---|
6114 | else |
---|
6115 | transfer = dp->nfsdi_wsize; |
---|
6116 | NFSLOCKNODE(np); |
---|
6117 | np->n_flag |= NDSCOMMIT; |
---|
6118 | NFSUNLOCKNODE(np); |
---|
6119 | if (len > transfer && docommit == 0) |
---|
6120 | xfer = transfer; |
---|
6121 | else |
---|
6122 | xfer = len; |
---|
6123 | if (docommit != 0) { |
---|
6124 | if (error == 0) { |
---|
6125 | /* |
---|
6126 | * Do last mirrored DS commit with this thread. |
---|
6127 | */ |
---|
6128 | if (mirror < flp->nfsfl_mirrorcnt - 1) |
---|
6129 | error = nfsio_commitds(vp, off, xfer, |
---|
6130 | *dspp, fhp, dp->nfsdi_vers, |
---|
6131 | dp->nfsdi_minorvers, drpc, tcred, |
---|
6132 | p); |
---|
6133 | else |
---|
6134 | error = nfsrpc_commitds(vp, off, xfer, |
---|
6135 | *dspp, fhp, dp->nfsdi_vers, |
---|
6136 | dp->nfsdi_minorvers, tcred, p); |
---|
6137 | NFSCL_DEBUG(4, "commitds=%d\n", error); |
---|
6138 | if (error != 0 && error != EACCES && error != |
---|
6139 | ESTALE) { |
---|
6140 | NFSCL_DEBUG(4, |
---|
6141 | "DS layreterr for commit\n"); |
---|
6142 | nfscl_dserr(NFSV4OP_COMMIT, error, dp, |
---|
6143 | lyp, *dspp); |
---|
6144 | } |
---|
6145 | } |
---|
6146 | NFSCL_DEBUG(4, "aft nfsio_commitds=%d\n", error); |
---|
6147 | if (error == 0) { |
---|
6148 | /* |
---|
6149 | * Set both eof and uio_resid = 0 to end any |
---|
6150 | * loops. |
---|
6151 | */ |
---|
6152 | *eofp = 1; |
---|
6153 | uiop->uio_resid = 0; |
---|
6154 | } else { |
---|
6155 | NFSLOCKNODE(np); |
---|
6156 | np->n_flag &= ~NDSCOMMIT; |
---|
6157 | NFSUNLOCKNODE(np); |
---|
6158 | } |
---|
6159 | } else if (rwflag == NFSV4OPEN_ACCESSREAD) { |
---|
6160 | error = nfsrpc_readds(vp, uiop, stateidp, eofp, *dspp, |
---|
6161 | off, xfer, fhp, 1, dp->nfsdi_vers, |
---|
6162 | dp->nfsdi_minorvers, tcred, p); |
---|
6163 | NFSCL_DEBUG(4, "readds=%d\n", error); |
---|
6164 | if (error != 0 && error != EACCES && error != ESTALE) { |
---|
6165 | NFSCL_DEBUG(4, "DS layreterr for read\n"); |
---|
6166 | nfscl_dserr(NFSV4OP_READ, error, dp, lyp, |
---|
6167 | *dspp); |
---|
6168 | } |
---|
6169 | } else { |
---|
6170 | if (flp->nfsfl_mirrorcnt == 1) { |
---|
6171 | error = nfsrpc_writeds(vp, uiop, iomode, |
---|
6172 | must_commit, stateidp, *dspp, off, xfer, |
---|
6173 | fhp, 0, 1, dp->nfsdi_vers, |
---|
6174 | dp->nfsdi_minorvers, tcred, p); |
---|
6175 | if (error == 0) { |
---|
6176 | NFSLOCKCLSTATE(); |
---|
6177 | lyp->nfsly_flags |= NFSLY_WRITTEN; |
---|
6178 | NFSUNLOCKCLSTATE(); |
---|
6179 | } |
---|
6180 | } else { |
---|
6181 | m = nfsm_copym(mp, rel_off, xfer); |
---|
6182 | NFSCL_DEBUG(4, "mcopy reloff=%d xfer=%jd\n", |
---|
6183 | rel_off, (uintmax_t)xfer); |
---|
6184 | /* |
---|
6185 | * Do last write to a mirrored DS with this |
---|
6186 | * thread. |
---|
6187 | */ |
---|
6188 | if (mirror < flp->nfsfl_mirrorcnt - 1) |
---|
6189 | error = nfsio_writedsmir(vp, iomode, |
---|
6190 | must_commit, stateidp, *dspp, off, |
---|
6191 | xfer, fhp, m, dp->nfsdi_vers, |
---|
6192 | dp->nfsdi_minorvers, drpc, tcred, |
---|
6193 | p); |
---|
6194 | else |
---|
6195 | error = nfsrpc_writedsmir(vp, iomode, |
---|
6196 | must_commit, stateidp, *dspp, off, |
---|
6197 | xfer, fhp, m, dp->nfsdi_vers, |
---|
6198 | dp->nfsdi_minorvers, tcred, p); |
---|
6199 | NFSCL_DEBUG(4, "nfsio_writedsmir=%d\n", error); |
---|
6200 | if (error != 0 && error != EACCES && error != |
---|
6201 | ESTALE) { |
---|
6202 | NFSCL_DEBUG(4, |
---|
6203 | "DS layreterr for write\n"); |
---|
6204 | nfscl_dserr(NFSV4OP_WRITE, error, dp, |
---|
6205 | lyp, *dspp); |
---|
6206 | } |
---|
6207 | } |
---|
6208 | } |
---|
6209 | NFSCL_DEBUG(4, "aft read/writeds=%d\n", error); |
---|
6210 | if (error == 0) { |
---|
6211 | len -= xfer; |
---|
6212 | off += xfer; |
---|
6213 | rel_off += xfer; |
---|
6214 | } |
---|
6215 | if ((dp->nfsdi_flags & NFSDI_TIGHTCOUPLED) == 0) |
---|
6216 | NFSFREECRED(tcred); |
---|
6217 | } |
---|
6218 | NFSCL_DEBUG(4, "eo nfscl_dofflayoutio=%d\n", error); |
---|
6219 | return (error); |
---|
6220 | } |
---|
6221 | |
---|
6222 | /* |
---|
6223 | * The actual read RPC done to a DS. |
---|
6224 | */ |
---|
6225 | static int |
---|
6226 | nfsrpc_readds(vnode_t vp, struct uio *uiop, nfsv4stateid_t *stateidp, int *eofp, |
---|
6227 | struct nfsclds *dsp, uint64_t io_off, int len, struct nfsfh *fhp, int flex, |
---|
6228 | int vers, int minorvers, struct ucred *cred, NFSPROC_T *p) |
---|
6229 | { |
---|
6230 | uint32_t *tl; |
---|
6231 | int attrflag, error, retlen; |
---|
6232 | struct nfsrv_descript nfsd; |
---|
6233 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
6234 | struct nfsrv_descript *nd = &nfsd; |
---|
6235 | struct nfssockreq *nrp; |
---|
6236 | struct nfsvattr na; |
---|
6237 | |
---|
6238 | nd->nd_mrep = NULL; |
---|
6239 | if (vers == 0 || vers == NFS_VER4) { |
---|
6240 | nfscl_reqstart(nd, NFSPROC_READDS, nmp, fhp->nfh_fh, |
---|
6241 | fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers); |
---|
6242 | vers = NFS_VER4; |
---|
6243 | NFSCL_DEBUG(4, "nfsrpc_readds: vers4 minvers=%d\n", minorvers); |
---|
6244 | if (flex != 0) |
---|
6245 | nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); |
---|
6246 | else |
---|
6247 | nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSEQIDZERO); |
---|
6248 | } else { |
---|
6249 | nfscl_reqstart(nd, NFSPROC_READ, nmp, fhp->nfh_fh, |
---|
6250 | fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers); |
---|
6251 | NFSCL_DEBUG(4, "nfsrpc_readds: vers3\n"); |
---|
6252 | } |
---|
6253 | NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED * 3); |
---|
6254 | txdr_hyper(io_off, tl); |
---|
6255 | *(tl + 2) = txdr_unsigned(len); |
---|
6256 | nrp = dsp->nfsclds_sockp; |
---|
6257 | NFSCL_DEBUG(4, "nfsrpc_readds: nrp=%p\n", nrp); |
---|
6258 | if (nrp == NULL) |
---|
6259 | /* If NULL, use the MDS socket. */ |
---|
6260 | nrp = &nmp->nm_sockreq; |
---|
6261 | error = newnfs_request(nd, nmp, NULL, nrp, vp, p, cred, |
---|
6262 | NFS_PROG, vers, NULL, 1, NULL, &dsp->nfsclds_sess); |
---|
6263 | NFSCL_DEBUG(4, "nfsrpc_readds: stat=%d err=%d\n", nd->nd_repstat, |
---|
6264 | error); |
---|
6265 | if (error != 0) |
---|
6266 | return (error); |
---|
6267 | if (vers == NFS_VER3) { |
---|
6268 | error = nfscl_postop_attr(nd, &na, &attrflag, NULL); |
---|
6269 | NFSCL_DEBUG(4, "nfsrpc_readds: postop=%d\n", error); |
---|
6270 | if (error != 0) |
---|
6271 | goto nfsmout; |
---|
6272 | } |
---|
6273 | if (nd->nd_repstat != 0) { |
---|
6274 | error = nd->nd_repstat; |
---|
6275 | goto nfsmout; |
---|
6276 | } |
---|
6277 | if (vers == NFS_VER3) { |
---|
6278 | NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED); |
---|
6279 | *eofp = fxdr_unsigned(int, *(tl + 1)); |
---|
6280 | } else { |
---|
6281 | NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); |
---|
6282 | *eofp = fxdr_unsigned(int, *tl); |
---|
6283 | } |
---|
6284 | NFSM_STRSIZ(retlen, len); |
---|
6285 | NFSCL_DEBUG(4, "nfsrpc_readds: retlen=%d eof=%d\n", retlen, *eofp); |
---|
6286 | error = nfsm_mbufuio(nd, uiop, retlen); |
---|
6287 | nfsmout: |
---|
6288 | if (nd->nd_mrep != NULL) |
---|
6289 | mbuf_freem(nd->nd_mrep); |
---|
6290 | return (error); |
---|
6291 | } |
---|
6292 | |
---|
6293 | /* |
---|
6294 | * The actual write RPC done to a DS. |
---|
6295 | */ |
---|
6296 | static int |
---|
6297 | nfsrpc_writeds(vnode_t vp, struct uio *uiop, int *iomode, int *must_commit, |
---|
6298 | nfsv4stateid_t *stateidp, struct nfsclds *dsp, uint64_t io_off, int len, |
---|
6299 | struct nfsfh *fhp, int commit_thru_mds, int flex, int vers, int minorvers, |
---|
6300 | struct ucred *cred, NFSPROC_T *p) |
---|
6301 | { |
---|
6302 | uint32_t *tl; |
---|
6303 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
6304 | int attrflag, error, rlen, commit, committed = NFSWRITE_FILESYNC; |
---|
6305 | int32_t backup; |
---|
6306 | struct nfsrv_descript nfsd; |
---|
6307 | struct nfsrv_descript *nd = &nfsd; |
---|
6308 | struct nfssockreq *nrp; |
---|
6309 | struct nfsvattr na; |
---|
6310 | |
---|
6311 | KASSERT(uiop->uio_iovcnt == 1, ("nfs: writerpc iovcnt > 1")); |
---|
6312 | nd->nd_mrep = NULL; |
---|
6313 | if (vers == 0 || vers == NFS_VER4) { |
---|
6314 | nfscl_reqstart(nd, NFSPROC_WRITEDS, nmp, fhp->nfh_fh, |
---|
6315 | fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers); |
---|
6316 | NFSCL_DEBUG(4, "nfsrpc_writeds: vers4 minvers=%d\n", minorvers); |
---|
6317 | vers = NFS_VER4; |
---|
6318 | if (flex != 0) |
---|
6319 | nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); |
---|
6320 | else |
---|
6321 | nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSEQIDZERO); |
---|
6322 | NFSM_BUILD(tl, uint32_t *, NFSX_HYPER + 2 * NFSX_UNSIGNED); |
---|
6323 | } else { |
---|
6324 | nfscl_reqstart(nd, NFSPROC_WRITE, nmp, fhp->nfh_fh, |
---|
6325 | fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers); |
---|
6326 | NFSCL_DEBUG(4, "nfsrpc_writeds: vers3\n"); |
---|
6327 | NFSM_BUILD(tl, uint32_t *, NFSX_HYPER + 3 * NFSX_UNSIGNED); |
---|
6328 | } |
---|
6329 | txdr_hyper(io_off, tl); |
---|
6330 | tl += 2; |
---|
6331 | if (vers == NFS_VER3) |
---|
6332 | *tl++ = txdr_unsigned(len); |
---|
6333 | *tl++ = txdr_unsigned(*iomode); |
---|
6334 | *tl = txdr_unsigned(len); |
---|
6335 | nfsm_uiombuf(nd, uiop, len); |
---|
6336 | nrp = dsp->nfsclds_sockp; |
---|
6337 | if (nrp == NULL) |
---|
6338 | /* If NULL, use the MDS socket. */ |
---|
6339 | nrp = &nmp->nm_sockreq; |
---|
6340 | error = newnfs_request(nd, nmp, NULL, nrp, vp, p, cred, |
---|
6341 | NFS_PROG, vers, NULL, 1, NULL, &dsp->nfsclds_sess); |
---|
6342 | NFSCL_DEBUG(4, "nfsrpc_writeds: err=%d stat=%d\n", error, |
---|
6343 | nd->nd_repstat); |
---|
6344 | if (error != 0) |
---|
6345 | return (error); |
---|
6346 | if (nd->nd_repstat != 0) { |
---|
6347 | /* |
---|
6348 | * In case the rpc gets retried, roll |
---|
6349 | * the uio fileds changed by nfsm_uiombuf() |
---|
6350 | * back. |
---|
6351 | */ |
---|
6352 | uiop->uio_offset -= len; |
---|
6353 | uio_uio_resid_add(uiop, len); |
---|
6354 | uio_iov_base_add(uiop, -len); |
---|
6355 | uio_iov_len_add(uiop, len); |
---|
6356 | error = nd->nd_repstat; |
---|
6357 | } else { |
---|
6358 | if (vers == NFS_VER3) { |
---|
6359 | error = nfscl_wcc_data(nd, vp, &na, &attrflag, NULL, |
---|
6360 | NULL); |
---|
6361 | NFSCL_DEBUG(4, "nfsrpc_writeds: wcc_data=%d\n", error); |
---|
6362 | if (error != 0) |
---|
6363 | goto nfsmout; |
---|
6364 | } |
---|
6365 | NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED + NFSX_VERF); |
---|
6366 | rlen = fxdr_unsigned(int, *tl++); |
---|
6367 | NFSCL_DEBUG(4, "nfsrpc_writeds: len=%d rlen=%d\n", len, rlen); |
---|
6368 | if (rlen == 0) { |
---|
6369 | error = NFSERR_IO; |
---|
6370 | goto nfsmout; |
---|
6371 | } else if (rlen < len) { |
---|
6372 | backup = len - rlen; |
---|
6373 | uio_iov_base_add(uiop, -(backup)); |
---|
6374 | uio_iov_len_add(uiop, backup); |
---|
6375 | uiop->uio_offset -= backup; |
---|
6376 | uio_uio_resid_add(uiop, backup); |
---|
6377 | len = rlen; |
---|
6378 | } |
---|
6379 | commit = fxdr_unsigned(int, *tl++); |
---|
6380 | |
---|
6381 | /* |
---|
6382 | * Return the lowest commitment level |
---|
6383 | * obtained by any of the RPCs. |
---|
6384 | */ |
---|
6385 | if (committed == NFSWRITE_FILESYNC) |
---|
6386 | committed = commit; |
---|
6387 | else if (committed == NFSWRITE_DATASYNC && |
---|
6388 | commit == NFSWRITE_UNSTABLE) |
---|
6389 | committed = commit; |
---|
6390 | if (commit_thru_mds != 0) { |
---|
6391 | NFSLOCKMNT(nmp); |
---|
6392 | if (!NFSHASWRITEVERF(nmp)) { |
---|
6393 | NFSBCOPY(tl, nmp->nm_verf, NFSX_VERF); |
---|
6394 | NFSSETWRITEVERF(nmp); |
---|
6395 | } else if (NFSBCMP(tl, nmp->nm_verf, NFSX_VERF)) { |
---|
6396 | *must_commit = 1; |
---|
6397 | NFSBCOPY(tl, nmp->nm_verf, NFSX_VERF); |
---|
6398 | } |
---|
6399 | NFSUNLOCKMNT(nmp); |
---|
6400 | } else { |
---|
6401 | NFSLOCKDS(dsp); |
---|
6402 | if ((dsp->nfsclds_flags & NFSCLDS_HASWRITEVERF) == 0) { |
---|
6403 | NFSBCOPY(tl, dsp->nfsclds_verf, NFSX_VERF); |
---|
6404 | dsp->nfsclds_flags |= NFSCLDS_HASWRITEVERF; |
---|
6405 | } else if (NFSBCMP(tl, dsp->nfsclds_verf, NFSX_VERF)) { |
---|
6406 | *must_commit = 1; |
---|
6407 | NFSBCOPY(tl, dsp->nfsclds_verf, NFSX_VERF); |
---|
6408 | } |
---|
6409 | NFSUNLOCKDS(dsp); |
---|
6410 | } |
---|
6411 | } |
---|
6412 | nfsmout: |
---|
6413 | if (nd->nd_mrep != NULL) |
---|
6414 | mbuf_freem(nd->nd_mrep); |
---|
6415 | *iomode = committed; |
---|
6416 | if (nd->nd_repstat != 0 && error == 0) |
---|
6417 | error = nd->nd_repstat; |
---|
6418 | return (error); |
---|
6419 | } |
---|
6420 | |
---|
6421 | /* |
---|
6422 | * The actual write RPC done to a DS. |
---|
6423 | * This variant is called from a separate kernel process for mirrors. |
---|
6424 | * Any short write is considered an IO error. |
---|
6425 | */ |
---|
6426 | static int |
---|
6427 | nfsrpc_writedsmir(vnode_t vp, int *iomode, int *must_commit, |
---|
6428 | nfsv4stateid_t *stateidp, struct nfsclds *dsp, uint64_t io_off, int len, |
---|
6429 | struct nfsfh *fhp, struct mbuf *m, int vers, int minorvers, |
---|
6430 | struct ucred *cred, NFSPROC_T *p) |
---|
6431 | { |
---|
6432 | uint32_t *tl; |
---|
6433 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
6434 | int attrflag, error, commit, committed = NFSWRITE_FILESYNC, rlen; |
---|
6435 | struct nfsrv_descript nfsd; |
---|
6436 | struct nfsrv_descript *nd = &nfsd; |
---|
6437 | struct nfssockreq *nrp; |
---|
6438 | struct nfsvattr na; |
---|
6439 | |
---|
6440 | nd->nd_mrep = NULL; |
---|
6441 | if (vers == 0 || vers == NFS_VER4) { |
---|
6442 | nfscl_reqstart(nd, NFSPROC_WRITEDS, nmp, fhp->nfh_fh, |
---|
6443 | fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers); |
---|
6444 | vers = NFS_VER4; |
---|
6445 | NFSCL_DEBUG(4, "nfsrpc_writedsmir: vers4 minvers=%d\n", |
---|
6446 | minorvers); |
---|
6447 | nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); |
---|
6448 | NFSM_BUILD(tl, uint32_t *, NFSX_HYPER + 2 * NFSX_UNSIGNED); |
---|
6449 | } else { |
---|
6450 | nfscl_reqstart(nd, NFSPROC_WRITE, nmp, fhp->nfh_fh, |
---|
6451 | fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers); |
---|
6452 | NFSCL_DEBUG(4, "nfsrpc_writedsmir: vers3\n"); |
---|
6453 | NFSM_BUILD(tl, uint32_t *, NFSX_HYPER + 3 * NFSX_UNSIGNED); |
---|
6454 | } |
---|
6455 | txdr_hyper(io_off, tl); |
---|
6456 | tl += 2; |
---|
6457 | if (vers == NFS_VER3) |
---|
6458 | *tl++ = txdr_unsigned(len); |
---|
6459 | *tl++ = txdr_unsigned(*iomode); |
---|
6460 | *tl = txdr_unsigned(len); |
---|
6461 | if (len > 0) { |
---|
6462 | /* Put data in mbuf chain. */ |
---|
6463 | nd->nd_mb->m_next = m; |
---|
6464 | /* Set nd_mb and nd_bpos to end of data. */ |
---|
6465 | while (m->m_next != NULL) |
---|
6466 | m = m->m_next; |
---|
6467 | nd->nd_mb = m; |
---|
6468 | nd->nd_bpos = mtod(m, char *) + m->m_len; |
---|
6469 | NFSCL_DEBUG(4, "nfsrpc_writedsmir: lastmb len=%d\n", m->m_len); |
---|
6470 | } |
---|
6471 | nrp = dsp->nfsclds_sockp; |
---|
6472 | if (nrp == NULL) |
---|
6473 | /* If NULL, use the MDS socket. */ |
---|
6474 | nrp = &nmp->nm_sockreq; |
---|
6475 | error = newnfs_request(nd, nmp, NULL, nrp, vp, p, cred, |
---|
6476 | NFS_PROG, vers, NULL, 1, NULL, &dsp->nfsclds_sess); |
---|
6477 | NFSCL_DEBUG(4, "nfsrpc_writedsmir: err=%d stat=%d\n", error, |
---|
6478 | nd->nd_repstat); |
---|
6479 | if (error != 0) |
---|
6480 | return (error); |
---|
6481 | if (nd->nd_repstat != 0) |
---|
6482 | error = nd->nd_repstat; |
---|
6483 | else { |
---|
6484 | if (vers == NFS_VER3) { |
---|
6485 | error = nfscl_wcc_data(nd, vp, &na, &attrflag, NULL, |
---|
6486 | NULL); |
---|
6487 | NFSCL_DEBUG(4, "nfsrpc_writedsmir: wcc_data=%d\n", |
---|
6488 | error); |
---|
6489 | if (error != 0) |
---|
6490 | goto nfsmout; |
---|
6491 | } |
---|
6492 | NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED + NFSX_VERF); |
---|
6493 | rlen = fxdr_unsigned(int, *tl++); |
---|
6494 | NFSCL_DEBUG(4, "nfsrpc_writedsmir: len=%d rlen=%d\n", len, |
---|
6495 | rlen); |
---|
6496 | if (rlen != len) { |
---|
6497 | error = NFSERR_IO; |
---|
6498 | NFSCL_DEBUG(4, "nfsrpc_writedsmir: len=%d rlen=%d\n", |
---|
6499 | len, rlen); |
---|
6500 | goto nfsmout; |
---|
6501 | } |
---|
6502 | commit = fxdr_unsigned(int, *tl++); |
---|
6503 | |
---|
6504 | /* |
---|
6505 | * Return the lowest commitment level |
---|
6506 | * obtained by any of the RPCs. |
---|
6507 | */ |
---|
6508 | if (committed == NFSWRITE_FILESYNC) |
---|
6509 | committed = commit; |
---|
6510 | else if (committed == NFSWRITE_DATASYNC && |
---|
6511 | commit == NFSWRITE_UNSTABLE) |
---|
6512 | committed = commit; |
---|
6513 | NFSLOCKDS(dsp); |
---|
6514 | if ((dsp->nfsclds_flags & NFSCLDS_HASWRITEVERF) == 0) { |
---|
6515 | NFSBCOPY(tl, dsp->nfsclds_verf, NFSX_VERF); |
---|
6516 | dsp->nfsclds_flags |= NFSCLDS_HASWRITEVERF; |
---|
6517 | } else if (NFSBCMP(tl, dsp->nfsclds_verf, NFSX_VERF)) { |
---|
6518 | *must_commit = 1; |
---|
6519 | NFSBCOPY(tl, dsp->nfsclds_verf, NFSX_VERF); |
---|
6520 | } |
---|
6521 | NFSUNLOCKDS(dsp); |
---|
6522 | } |
---|
6523 | nfsmout: |
---|
6524 | if (nd->nd_mrep != NULL) |
---|
6525 | mbuf_freem(nd->nd_mrep); |
---|
6526 | *iomode = committed; |
---|
6527 | if (nd->nd_repstat != 0 && error == 0) |
---|
6528 | error = nd->nd_repstat; |
---|
6529 | return (error); |
---|
6530 | } |
---|
6531 | |
---|
6532 | /* |
---|
6533 | * Start up the thread that will execute nfsrpc_writedsmir(). |
---|
6534 | */ |
---|
6535 | static void |
---|
6536 | start_writedsmir(void *arg, int pending) |
---|
6537 | { |
---|
6538 | struct nfsclwritedsdorpc *drpc; |
---|
6539 | |
---|
6540 | drpc = (struct nfsclwritedsdorpc *)arg; |
---|
6541 | drpc->err = nfsrpc_writedsmir(drpc->vp, &drpc->iomode, |
---|
6542 | &drpc->must_commit, drpc->stateidp, drpc->dsp, drpc->off, drpc->len, |
---|
6543 | drpc->fhp, drpc->m, drpc->vers, drpc->minorvers, drpc->cred, |
---|
6544 | drpc->p); |
---|
6545 | drpc->done = 1; |
---|
6546 | NFSCL_DEBUG(4, "start_writedsmir: err=%d\n", drpc->err); |
---|
6547 | } |
---|
6548 | |
---|
6549 | /* |
---|
6550 | * Set up the write DS mirror call for the pNFS I/O thread. |
---|
6551 | */ |
---|
6552 | static int |
---|
6553 | nfsio_writedsmir(vnode_t vp, int *iomode, int *must_commit, |
---|
6554 | nfsv4stateid_t *stateidp, struct nfsclds *dsp, uint64_t off, int len, |
---|
6555 | struct nfsfh *fhp, struct mbuf *m, int vers, int minorvers, |
---|
6556 | struct nfsclwritedsdorpc *drpc, struct ucred *cred, NFSPROC_T *p) |
---|
6557 | { |
---|
6558 | int error, ret; |
---|
6559 | |
---|
6560 | error = 0; |
---|
6561 | drpc->done = 0; |
---|
6562 | drpc->vp = vp; |
---|
6563 | drpc->iomode = *iomode; |
---|
6564 | drpc->must_commit = *must_commit; |
---|
6565 | drpc->stateidp = stateidp; |
---|
6566 | drpc->dsp = dsp; |
---|
6567 | drpc->off = off; |
---|
6568 | drpc->len = len; |
---|
6569 | drpc->fhp = fhp; |
---|
6570 | drpc->m = m; |
---|
6571 | drpc->vers = vers; |
---|
6572 | drpc->minorvers = minorvers; |
---|
6573 | drpc->cred = cred; |
---|
6574 | drpc->p = p; |
---|
6575 | drpc->inprog = 0; |
---|
6576 | ret = EIO; |
---|
6577 | if (nfs_pnfsiothreads != 0) { |
---|
6578 | ret = nfs_pnfsio(start_writedsmir, drpc); |
---|
6579 | NFSCL_DEBUG(4, "nfsio_writedsmir: nfs_pnfsio=%d\n", ret); |
---|
6580 | } |
---|
6581 | if (ret != 0) |
---|
6582 | error = nfsrpc_writedsmir(vp, iomode, must_commit, stateidp, |
---|
6583 | dsp, off, len, fhp, m, vers, minorvers, cred, p); |
---|
6584 | NFSCL_DEBUG(4, "nfsio_writedsmir: error=%d\n", error); |
---|
6585 | return (error); |
---|
6586 | } |
---|
6587 | |
---|
6588 | /* |
---|
6589 | * Free up the nfsclds structure. |
---|
6590 | */ |
---|
6591 | void |
---|
6592 | nfscl_freenfsclds(struct nfsclds *dsp) |
---|
6593 | { |
---|
6594 | int i; |
---|
6595 | |
---|
6596 | if (dsp == NULL) |
---|
6597 | return; |
---|
6598 | if (dsp->nfsclds_sockp != NULL) { |
---|
6599 | NFSFREECRED(dsp->nfsclds_sockp->nr_cred); |
---|
6600 | NFSFREEMUTEX(&dsp->nfsclds_sockp->nr_mtx); |
---|
6601 | free(dsp->nfsclds_sockp->nr_nam, M_SONAME); |
---|
6602 | free(dsp->nfsclds_sockp, M_NFSSOCKREQ); |
---|
6603 | } |
---|
6604 | NFSFREEMUTEX(&dsp->nfsclds_mtx); |
---|
6605 | NFSFREEMUTEX(&dsp->nfsclds_sess.nfsess_mtx); |
---|
6606 | for (i = 0; i < NFSV4_CBSLOTS; i++) { |
---|
6607 | if (dsp->nfsclds_sess.nfsess_cbslots[i].nfssl_reply != NULL) |
---|
6608 | m_freem( |
---|
6609 | dsp->nfsclds_sess.nfsess_cbslots[i].nfssl_reply); |
---|
6610 | } |
---|
6611 | free(dsp, M_NFSCLDS); |
---|
6612 | } |
---|
6613 | |
---|
6614 | static enum nfsclds_state |
---|
6615 | nfscl_getsameserver(struct nfsmount *nmp, struct nfsclds *newdsp, |
---|
6616 | struct nfsclds **retdspp, uint32_t *sequencep) |
---|
6617 | { |
---|
6618 | struct nfsclds *dsp; |
---|
6619 | int fndseq; |
---|
6620 | |
---|
6621 | /* |
---|
6622 | * Search the list of nfsclds structures for one with the same |
---|
6623 | * server. |
---|
6624 | */ |
---|
6625 | fndseq = 0; |
---|
6626 | TAILQ_FOREACH(dsp, &nmp->nm_sess, nfsclds_list) { |
---|
6627 | if (dsp->nfsclds_servownlen == newdsp->nfsclds_servownlen && |
---|
6628 | dsp->nfsclds_servownlen != 0 && |
---|
6629 | !NFSBCMP(dsp->nfsclds_serverown, newdsp->nfsclds_serverown, |
---|
6630 | dsp->nfsclds_servownlen) && |
---|
6631 | dsp->nfsclds_sess.nfsess_defunct == 0) { |
---|
6632 | NFSCL_DEBUG(4, "fnd same fdsp=%p dsp=%p flg=0x%x\n", |
---|
6633 | TAILQ_FIRST(&nmp->nm_sess), dsp, |
---|
6634 | dsp->nfsclds_flags); |
---|
6635 | if (fndseq == 0) { |
---|
6636 | /* Get sequenceid# from first entry. */ |
---|
6637 | *sequencep = |
---|
6638 | dsp->nfsclds_sess.nfsess_sequenceid; |
---|
6639 | fndseq = 1; |
---|
6640 | } |
---|
6641 | /* Server major id matches. */ |
---|
6642 | if ((dsp->nfsclds_flags & NFSCLDS_DS) != 0) { |
---|
6643 | *retdspp = dsp; |
---|
6644 | return (NFSDSP_USETHISSESSION); |
---|
6645 | } |
---|
6646 | |
---|
6647 | } |
---|
6648 | } |
---|
6649 | if (fndseq != 0) |
---|
6650 | return (NFSDSP_SEQTHISSESSION); |
---|
6651 | return (NFSDSP_NOTFOUND); |
---|
6652 | } |
---|
6653 | |
---|
6654 | /* |
---|
6655 | * NFS commit rpc to a NFSv4.1 DS. |
---|
6656 | */ |
---|
6657 | static int |
---|
6658 | nfsrpc_commitds(vnode_t vp, uint64_t offset, int cnt, struct nfsclds *dsp, |
---|
6659 | struct nfsfh *fhp, int vers, int minorvers, struct ucred *cred, |
---|
6660 | NFSPROC_T *p) |
---|
6661 | { |
---|
6662 | uint32_t *tl; |
---|
6663 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
6664 | struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); |
---|
6665 | struct nfssockreq *nrp; |
---|
6666 | struct nfsvattr na; |
---|
6667 | int attrflag, error; |
---|
6668 | |
---|
6669 | nd->nd_mrep = NULL; |
---|
6670 | if (vers == 0 || vers == NFS_VER4) { |
---|
6671 | nfscl_reqstart(nd, NFSPROC_COMMITDS, nmp, fhp->nfh_fh, |
---|
6672 | fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers); |
---|
6673 | vers = NFS_VER4; |
---|
6674 | } else |
---|
6675 | nfscl_reqstart(nd, NFSPROC_COMMIT, nmp, fhp->nfh_fh, |
---|
6676 | fhp->nfh_len, NULL, &dsp->nfsclds_sess, vers, minorvers); |
---|
6677 | NFSCL_DEBUG(4, "nfsrpc_commitds: vers=%d minvers=%d\n", vers, |
---|
6678 | minorvers); |
---|
6679 | NFSM_BUILD(tl, uint32_t *, NFSX_HYPER + NFSX_UNSIGNED); |
---|
6680 | txdr_hyper(offset, tl); |
---|
6681 | tl += 2; |
---|
6682 | *tl = txdr_unsigned(cnt); |
---|
6683 | nrp = dsp->nfsclds_sockp; |
---|
6684 | if (nrp == NULL) |
---|
6685 | /* If NULL, use the MDS socket. */ |
---|
6686 | nrp = &nmp->nm_sockreq; |
---|
6687 | error = newnfs_request(nd, nmp, NULL, nrp, vp, p, cred, |
---|
6688 | NFS_PROG, vers, NULL, 1, NULL, &dsp->nfsclds_sess); |
---|
6689 | NFSCL_DEBUG(4, "nfsrpc_commitds: err=%d stat=%d\n", error, |
---|
6690 | nd->nd_repstat); |
---|
6691 | if (error != 0) |
---|
6692 | return (error); |
---|
6693 | if (nd->nd_repstat == 0) { |
---|
6694 | if (vers == NFS_VER3) { |
---|
6695 | error = nfscl_wcc_data(nd, vp, &na, &attrflag, NULL, |
---|
6696 | NULL); |
---|
6697 | NFSCL_DEBUG(4, "nfsrpc_commitds: wccdata=%d\n", error); |
---|
6698 | if (error != 0) |
---|
6699 | goto nfsmout; |
---|
6700 | } |
---|
6701 | NFSM_DISSECT(tl, u_int32_t *, NFSX_VERF); |
---|
6702 | NFSLOCKDS(dsp); |
---|
6703 | if (NFSBCMP(tl, dsp->nfsclds_verf, NFSX_VERF)) { |
---|
6704 | NFSBCOPY(tl, dsp->nfsclds_verf, NFSX_VERF); |
---|
6705 | error = NFSERR_STALEWRITEVERF; |
---|
6706 | } |
---|
6707 | NFSUNLOCKDS(dsp); |
---|
6708 | } |
---|
6709 | nfsmout: |
---|
6710 | if (error == 0 && nd->nd_repstat != 0) |
---|
6711 | error = nd->nd_repstat; |
---|
6712 | mbuf_freem(nd->nd_mrep); |
---|
6713 | return (error); |
---|
6714 | } |
---|
6715 | |
---|
6716 | /* |
---|
6717 | * Start up the thread that will execute nfsrpc_commitds(). |
---|
6718 | */ |
---|
6719 | static void |
---|
6720 | start_commitds(void *arg, int pending) |
---|
6721 | { |
---|
6722 | struct nfsclwritedsdorpc *drpc; |
---|
6723 | |
---|
6724 | drpc = (struct nfsclwritedsdorpc *)arg; |
---|
6725 | drpc->err = nfsrpc_commitds(drpc->vp, drpc->off, drpc->len, |
---|
6726 | drpc->dsp, drpc->fhp, drpc->vers, drpc->minorvers, drpc->cred, |
---|
6727 | drpc->p); |
---|
6728 | drpc->done = 1; |
---|
6729 | NFSCL_DEBUG(4, "start_commitds: err=%d\n", drpc->err); |
---|
6730 | } |
---|
6731 | |
---|
6732 | /* |
---|
6733 | * Set up the commit DS mirror call for the pNFS I/O thread. |
---|
6734 | */ |
---|
6735 | static int |
---|
6736 | nfsio_commitds(vnode_t vp, uint64_t offset, int cnt, struct nfsclds *dsp, |
---|
6737 | struct nfsfh *fhp, int vers, int minorvers, |
---|
6738 | struct nfsclwritedsdorpc *drpc, struct ucred *cred, NFSPROC_T *p) |
---|
6739 | { |
---|
6740 | int error, ret; |
---|
6741 | |
---|
6742 | error = 0; |
---|
6743 | drpc->done = 0; |
---|
6744 | drpc->vp = vp; |
---|
6745 | drpc->off = offset; |
---|
6746 | drpc->len = cnt; |
---|
6747 | drpc->dsp = dsp; |
---|
6748 | drpc->fhp = fhp; |
---|
6749 | drpc->vers = vers; |
---|
6750 | drpc->minorvers = minorvers; |
---|
6751 | drpc->cred = cred; |
---|
6752 | drpc->p = p; |
---|
6753 | drpc->inprog = 0; |
---|
6754 | ret = EIO; |
---|
6755 | if (nfs_pnfsiothreads != 0) { |
---|
6756 | ret = nfs_pnfsio(start_commitds, drpc); |
---|
6757 | NFSCL_DEBUG(4, "nfsio_commitds: nfs_pnfsio=%d\n", ret); |
---|
6758 | } |
---|
6759 | if (ret != 0) |
---|
6760 | error = nfsrpc_commitds(vp, offset, cnt, dsp, fhp, vers, |
---|
6761 | minorvers, cred, p); |
---|
6762 | NFSCL_DEBUG(4, "nfsio_commitds: error=%d\n", error); |
---|
6763 | return (error); |
---|
6764 | } |
---|
6765 | |
---|
6766 | /* |
---|
6767 | * Set up the XDR arguments for the LayoutGet operation. |
---|
6768 | */ |
---|
6769 | static void |
---|
6770 | nfsrv_setuplayoutget(struct nfsrv_descript *nd, int iomode, uint64_t offset, |
---|
6771 | uint64_t len, uint64_t minlen, nfsv4stateid_t *stateidp, int layouttype, |
---|
6772 | int layoutlen, int usecurstateid) |
---|
6773 | { |
---|
6774 | uint32_t *tl; |
---|
6775 | |
---|
6776 | NFSM_BUILD(tl, uint32_t *, 4 * NFSX_UNSIGNED + 3 * NFSX_HYPER + |
---|
6777 | NFSX_STATEID); |
---|
6778 | *tl++ = newnfs_false; /* Don't signal availability. */ |
---|
6779 | *tl++ = txdr_unsigned(layouttype); |
---|
6780 | *tl++ = txdr_unsigned(iomode); |
---|
6781 | txdr_hyper(offset, tl); |
---|
6782 | tl += 2; |
---|
6783 | txdr_hyper(len, tl); |
---|
6784 | tl += 2; |
---|
6785 | txdr_hyper(minlen, tl); |
---|
6786 | tl += 2; |
---|
6787 | if (usecurstateid != 0) { |
---|
6788 | /* Special stateid for Current stateid. */ |
---|
6789 | *tl++ = txdr_unsigned(1); |
---|
6790 | *tl++ = 0; |
---|
6791 | *tl++ = 0; |
---|
6792 | *tl++ = 0; |
---|
6793 | } else { |
---|
6794 | *tl++ = txdr_unsigned(stateidp->seqid); |
---|
6795 | NFSCL_DEBUG(4, "layget seq=%d\n", (int)stateidp->seqid); |
---|
6796 | *tl++ = stateidp->other[0]; |
---|
6797 | *tl++ = stateidp->other[1]; |
---|
6798 | *tl++ = stateidp->other[2]; |
---|
6799 | } |
---|
6800 | *tl = txdr_unsigned(layoutlen); |
---|
6801 | } |
---|
6802 | |
---|
6803 | /* |
---|
6804 | * Parse the reply for a successful LayoutGet operation. |
---|
6805 | */ |
---|
6806 | static int |
---|
6807 | nfsrv_parselayoutget(struct nfsrv_descript *nd, nfsv4stateid_t *stateidp, |
---|
6808 | int *retonclosep, struct nfsclflayouthead *flhp) |
---|
6809 | { |
---|
6810 | uint32_t *tl; |
---|
6811 | struct nfsclflayout *flp, *prevflp, *tflp; |
---|
6812 | int cnt, error, fhcnt, gotiomode, i, iomode, j, k, l, laytype, nfhlen; |
---|
6813 | int m, mirrorcnt; |
---|
6814 | uint64_t retlen, off; |
---|
6815 | struct nfsfh *nfhp; |
---|
6816 | uint8_t *cp; |
---|
6817 | uid_t user; |
---|
6818 | gid_t grp; |
---|
6819 | |
---|
6820 | NFSCL_DEBUG(4, "in nfsrv_parselayoutget\n"); |
---|
6821 | error = 0; |
---|
6822 | flp = NULL; |
---|
6823 | gotiomode = -1; |
---|
6824 | NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED + NFSX_STATEID); |
---|
6825 | if (*tl++ != 0) |
---|
6826 | *retonclosep = 1; |
---|
6827 | else |
---|
6828 | *retonclosep = 0; |
---|
6829 | stateidp->seqid = fxdr_unsigned(uint32_t, *tl++); |
---|
6830 | NFSCL_DEBUG(4, "retoncls=%d stseq=%d\n", *retonclosep, |
---|
6831 | (int)stateidp->seqid); |
---|
6832 | stateidp->other[0] = *tl++; |
---|
6833 | stateidp->other[1] = *tl++; |
---|
6834 | stateidp->other[2] = *tl++; |
---|
6835 | cnt = fxdr_unsigned(int, *tl); |
---|
6836 | NFSCL_DEBUG(4, "layg cnt=%d\n", cnt); |
---|
6837 | if (cnt <= 0 || cnt > 10000) { |
---|
6838 | /* Don't accept more than 10000 layouts in reply. */ |
---|
6839 | error = NFSERR_BADXDR; |
---|
6840 | goto nfsmout; |
---|
6841 | } |
---|
6842 | for (i = 0; i < cnt; i++) { |
---|
6843 | /* Dissect to the layout type. */ |
---|
6844 | NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_HYPER + |
---|
6845 | 3 * NFSX_UNSIGNED); |
---|
6846 | off = fxdr_hyper(tl); tl += 2; |
---|
6847 | retlen = fxdr_hyper(tl); tl += 2; |
---|
6848 | iomode = fxdr_unsigned(int, *tl++); |
---|
6849 | laytype = fxdr_unsigned(int, *tl); |
---|
6850 | NFSCL_DEBUG(4, "layt=%d off=%ju len=%ju iom=%d\n", laytype, |
---|
6851 | (uintmax_t)off, (uintmax_t)retlen, iomode); |
---|
6852 | /* Ignore length of layout body for now. */ |
---|
6853 | if (laytype == NFSLAYOUT_NFSV4_1_FILES) { |
---|
6854 | /* Parse the File layout up to fhcnt. */ |
---|
6855 | NFSM_DISSECT(tl, uint32_t *, 3 * NFSX_UNSIGNED + |
---|
6856 | NFSX_HYPER + NFSX_V4DEVICEID); |
---|
6857 | fhcnt = fxdr_unsigned(int, *(tl + 4 + |
---|
6858 | NFSX_V4DEVICEID / NFSX_UNSIGNED)); |
---|
6859 | NFSCL_DEBUG(4, "fhcnt=%d\n", fhcnt); |
---|
6860 | if (fhcnt < 0 || fhcnt > 100) { |
---|
6861 | /* Don't accept more than 100 file handles. */ |
---|
6862 | error = NFSERR_BADXDR; |
---|
6863 | goto nfsmout; |
---|
6864 | } |
---|
6865 | if (fhcnt > 0) |
---|
6866 | flp = malloc(sizeof(*flp) + fhcnt * |
---|
6867 | sizeof(struct nfsfh *), M_NFSFLAYOUT, |
---|
6868 | M_WAITOK); |
---|
6869 | else |
---|
6870 | flp = malloc(sizeof(*flp), M_NFSFLAYOUT, |
---|
6871 | M_WAITOK); |
---|
6872 | flp->nfsfl_flags = NFSFL_FILE; |
---|
6873 | flp->nfsfl_fhcnt = 0; |
---|
6874 | flp->nfsfl_devp = NULL; |
---|
6875 | flp->nfsfl_off = off; |
---|
6876 | if (flp->nfsfl_off + retlen < flp->nfsfl_off) |
---|
6877 | flp->nfsfl_end = UINT64_MAX - flp->nfsfl_off; |
---|
6878 | else |
---|
6879 | flp->nfsfl_end = flp->nfsfl_off + retlen; |
---|
6880 | flp->nfsfl_iomode = iomode; |
---|
6881 | if (gotiomode == -1) |
---|
6882 | gotiomode = flp->nfsfl_iomode; |
---|
6883 | /* Ignore layout body length for now. */ |
---|
6884 | NFSBCOPY(tl, flp->nfsfl_dev, NFSX_V4DEVICEID); |
---|
6885 | tl += (NFSX_V4DEVICEID / NFSX_UNSIGNED); |
---|
6886 | flp->nfsfl_util = fxdr_unsigned(uint32_t, *tl++); |
---|
6887 | NFSCL_DEBUG(4, "flutil=0x%x\n", flp->nfsfl_util); |
---|
6888 | flp->nfsfl_stripe1 = fxdr_unsigned(uint32_t, *tl++); |
---|
6889 | flp->nfsfl_patoff = fxdr_hyper(tl); tl += 2; |
---|
6890 | NFSCL_DEBUG(4, "stripe1=%u poff=%ju\n", |
---|
6891 | flp->nfsfl_stripe1, (uintmax_t)flp->nfsfl_patoff); |
---|
6892 | for (j = 0; j < fhcnt; j++) { |
---|
6893 | NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); |
---|
6894 | nfhlen = fxdr_unsigned(int, *tl); |
---|
6895 | if (nfhlen <= 0 || nfhlen > NFSX_V4FHMAX) { |
---|
6896 | error = NFSERR_BADXDR; |
---|
6897 | goto nfsmout; |
---|
6898 | } |
---|
6899 | nfhp = malloc(sizeof(*nfhp) + nfhlen - 1, |
---|
6900 | M_NFSFH, M_WAITOK); |
---|
6901 | flp->nfsfl_fh[j] = nfhp; |
---|
6902 | flp->nfsfl_fhcnt++; |
---|
6903 | nfhp->nfh_len = nfhlen; |
---|
6904 | NFSM_DISSECT(cp, uint8_t *, NFSM_RNDUP(nfhlen)); |
---|
6905 | NFSBCOPY(cp, nfhp->nfh_fh, nfhlen); |
---|
6906 | } |
---|
6907 | } else if (laytype == NFSLAYOUT_FLEXFILE) { |
---|
6908 | NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED + |
---|
6909 | NFSX_HYPER); |
---|
6910 | mirrorcnt = fxdr_unsigned(int, *(tl + 2)); |
---|
6911 | NFSCL_DEBUG(4, "mirrorcnt=%d\n", mirrorcnt); |
---|
6912 | if (mirrorcnt < 1 || mirrorcnt > NFSDEV_MAXMIRRORS) { |
---|
6913 | error = NFSERR_BADXDR; |
---|
6914 | goto nfsmout; |
---|
6915 | } |
---|
6916 | flp = malloc(sizeof(*flp) + mirrorcnt * |
---|
6917 | sizeof(struct nfsffm), M_NFSFLAYOUT, M_WAITOK); |
---|
6918 | flp->nfsfl_flags = NFSFL_FLEXFILE; |
---|
6919 | flp->nfsfl_mirrorcnt = mirrorcnt; |
---|
6920 | for (j = 0; j < mirrorcnt; j++) |
---|
6921 | flp->nfsfl_ffm[j].devp = NULL; |
---|
6922 | flp->nfsfl_off = off; |
---|
6923 | if (flp->nfsfl_off + retlen < flp->nfsfl_off) |
---|
6924 | flp->nfsfl_end = UINT64_MAX - flp->nfsfl_off; |
---|
6925 | else |
---|
6926 | flp->nfsfl_end = flp->nfsfl_off + retlen; |
---|
6927 | flp->nfsfl_iomode = iomode; |
---|
6928 | if (gotiomode == -1) |
---|
6929 | gotiomode = flp->nfsfl_iomode; |
---|
6930 | flp->nfsfl_stripeunit = fxdr_hyper(tl); |
---|
6931 | NFSCL_DEBUG(4, "stripeunit=%ju\n", |
---|
6932 | (uintmax_t)flp->nfsfl_stripeunit); |
---|
6933 | for (j = 0; j < mirrorcnt; j++) { |
---|
6934 | NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); |
---|
6935 | k = fxdr_unsigned(int, *tl); |
---|
6936 | if (k < 1 || k > 128) { |
---|
6937 | error = NFSERR_BADXDR; |
---|
6938 | goto nfsmout; |
---|
6939 | } |
---|
6940 | NFSCL_DEBUG(4, "servercnt=%d\n", k); |
---|
6941 | for (l = 0; l < k; l++) { |
---|
6942 | NFSM_DISSECT(tl, uint32_t *, |
---|
6943 | NFSX_V4DEVICEID + NFSX_STATEID + |
---|
6944 | 2 * NFSX_UNSIGNED); |
---|
6945 | if (l == 0) { |
---|
6946 | /* Just use the first server. */ |
---|
6947 | NFSBCOPY(tl, |
---|
6948 | flp->nfsfl_ffm[j].dev, |
---|
6949 | NFSX_V4DEVICEID); |
---|
6950 | tl += (NFSX_V4DEVICEID / |
---|
6951 | NFSX_UNSIGNED); |
---|
6952 | tl++; |
---|
6953 | flp->nfsfl_ffm[j].st.seqid = |
---|
6954 | *tl++; |
---|
6955 | flp->nfsfl_ffm[j].st.other[0] = |
---|
6956 | *tl++; |
---|
6957 | flp->nfsfl_ffm[j].st.other[1] = |
---|
6958 | *tl++; |
---|
6959 | flp->nfsfl_ffm[j].st.other[2] = |
---|
6960 | *tl++; |
---|
6961 | NFSCL_DEBUG(4, "st.seqid=%u " |
---|
6962 | "st.o0=0x%x st.o1=0x%x " |
---|
6963 | "st.o2=0x%x\n", |
---|
6964 | flp->nfsfl_ffm[j].st.seqid, |
---|
6965 | flp->nfsfl_ffm[j].st.other[0], |
---|
6966 | flp->nfsfl_ffm[j].st.other[1], |
---|
6967 | flp->nfsfl_ffm[j].st.other[2]); |
---|
6968 | } else |
---|
6969 | tl += ((NFSX_V4DEVICEID + |
---|
6970 | NFSX_STATEID + |
---|
6971 | NFSX_UNSIGNED) / |
---|
6972 | NFSX_UNSIGNED); |
---|
6973 | fhcnt = fxdr_unsigned(int, *tl); |
---|
6974 | NFSCL_DEBUG(4, "fhcnt=%d\n", fhcnt); |
---|
6975 | if (fhcnt < 1 || |
---|
6976 | fhcnt > NFSDEV_MAXVERS) { |
---|
6977 | error = NFSERR_BADXDR; |
---|
6978 | goto nfsmout; |
---|
6979 | } |
---|
6980 | for (m = 0; m < fhcnt; m++) { |
---|
6981 | NFSM_DISSECT(tl, uint32_t *, |
---|
6982 | NFSX_UNSIGNED); |
---|
6983 | nfhlen = fxdr_unsigned(int, |
---|
6984 | *tl); |
---|
6985 | NFSCL_DEBUG(4, "nfhlen=%d\n", |
---|
6986 | nfhlen); |
---|
6987 | if (nfhlen <= 0 || nfhlen > |
---|
6988 | NFSX_V4FHMAX) { |
---|
6989 | error = NFSERR_BADXDR; |
---|
6990 | goto nfsmout; |
---|
6991 | } |
---|
6992 | NFSM_DISSECT(cp, uint8_t *, |
---|
6993 | NFSM_RNDUP(nfhlen)); |
---|
6994 | if (l == 0) { |
---|
6995 | flp->nfsfl_ffm[j].fhcnt |
---|
6996 | = fhcnt; |
---|
6997 | nfhp = malloc( |
---|
6998 | sizeof(*nfhp) + |
---|
6999 | nfhlen - 1, M_NFSFH, |
---|
7000 | M_WAITOK); |
---|
7001 | flp->nfsfl_ffm[j].fh[m] |
---|
7002 | = nfhp; |
---|
7003 | nfhp->nfh_len = nfhlen; |
---|
7004 | NFSBCOPY(cp, |
---|
7005 | nfhp->nfh_fh, |
---|
7006 | nfhlen); |
---|
7007 | NFSCL_DEBUG(4, |
---|
7008 | "got fh\n"); |
---|
7009 | } |
---|
7010 | } |
---|
7011 | /* Now, get the ffsd_user/ffds_group. */ |
---|
7012 | error = nfsrv_parseug(nd, 0, &user, |
---|
7013 | &grp, curthread); |
---|
7014 | NFSCL_DEBUG(4, "after parseu=%d\n", |
---|
7015 | error); |
---|
7016 | if (error == 0) |
---|
7017 | error = nfsrv_parseug(nd, 1, |
---|
7018 | &user, &grp, curthread); |
---|
7019 | NFSCL_DEBUG(4, "aft parseg=%d\n", |
---|
7020 | grp); |
---|
7021 | if (error != 0) |
---|
7022 | goto nfsmout; |
---|
7023 | NFSCL_DEBUG(4, "user=%d group=%d\n", |
---|
7024 | user, grp); |
---|
7025 | if (l == 0) { |
---|
7026 | flp->nfsfl_ffm[j].user = user; |
---|
7027 | flp->nfsfl_ffm[j].group = grp; |
---|
7028 | NFSCL_DEBUG(4, |
---|
7029 | "usr=%d grp=%d\n", user, |
---|
7030 | grp); |
---|
7031 | } |
---|
7032 | } |
---|
7033 | } |
---|
7034 | NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED); |
---|
7035 | flp->nfsfl_fflags = fxdr_unsigned(uint32_t, *tl++); |
---|
7036 | flp->nfsfl_statshint = fxdr_unsigned(uint32_t, *tl); |
---|
7037 | NFSCL_DEBUG(4, "fflags=0x%x statshint=%d\n", |
---|
7038 | flp->nfsfl_fflags, flp->nfsfl_statshint); |
---|
7039 | } else { |
---|
7040 | error = NFSERR_BADXDR; |
---|
7041 | goto nfsmout; |
---|
7042 | } |
---|
7043 | if (flp->nfsfl_iomode == gotiomode) { |
---|
7044 | /* Keep the list in increasing offset order. */ |
---|
7045 | tflp = LIST_FIRST(flhp); |
---|
7046 | prevflp = NULL; |
---|
7047 | while (tflp != NULL && |
---|
7048 | tflp->nfsfl_off < flp->nfsfl_off) { |
---|
7049 | prevflp = tflp; |
---|
7050 | tflp = LIST_NEXT(tflp, nfsfl_list); |
---|
7051 | } |
---|
7052 | if (prevflp == NULL) |
---|
7053 | LIST_INSERT_HEAD(flhp, flp, nfsfl_list); |
---|
7054 | else |
---|
7055 | LIST_INSERT_AFTER(prevflp, flp, |
---|
7056 | nfsfl_list); |
---|
7057 | NFSCL_DEBUG(4, "flp inserted\n"); |
---|
7058 | } else { |
---|
7059 | printf("nfscl_layoutget(): got wrong iomode\n"); |
---|
7060 | nfscl_freeflayout(flp); |
---|
7061 | } |
---|
7062 | flp = NULL; |
---|
7063 | } |
---|
7064 | nfsmout: |
---|
7065 | NFSCL_DEBUG(4, "eo nfsrv_parselayoutget=%d\n", error); |
---|
7066 | if (error != 0 && flp != NULL) |
---|
7067 | nfscl_freeflayout(flp); |
---|
7068 | return (error); |
---|
7069 | } |
---|
7070 | |
---|
7071 | /* |
---|
7072 | * Parse a user/group digit string. |
---|
7073 | */ |
---|
7074 | static int |
---|
7075 | nfsrv_parseug(struct nfsrv_descript *nd, int dogrp, uid_t *uidp, gid_t *gidp, |
---|
7076 | NFSPROC_T *p) |
---|
7077 | { |
---|
7078 | uint32_t *tl; |
---|
7079 | char *cp, *str, str0[NFSV4_SMALLSTR + 1]; |
---|
7080 | uint32_t len = 0; |
---|
7081 | int error = 0; |
---|
7082 | |
---|
7083 | NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); |
---|
7084 | len = fxdr_unsigned(uint32_t, *tl); |
---|
7085 | str = NULL; |
---|
7086 | if (len > NFSV4_OPAQUELIMIT) { |
---|
7087 | error = NFSERR_BADXDR; |
---|
7088 | goto nfsmout; |
---|
7089 | } |
---|
7090 | NFSCL_DEBUG(4, "nfsrv_parseug: len=%d\n", len); |
---|
7091 | if (len == 0) { |
---|
7092 | if (dogrp != 0) |
---|
7093 | *gidp = GID_NOGROUP; |
---|
7094 | else |
---|
7095 | *uidp = UID_NOBODY; |
---|
7096 | return (0); |
---|
7097 | } |
---|
7098 | if (len > NFSV4_SMALLSTR) |
---|
7099 | str = malloc(len + 1, M_TEMP, M_WAITOK); |
---|
7100 | else |
---|
7101 | str = str0; |
---|
7102 | NFSM_DISSECT(cp, char *, NFSM_RNDUP(len)); |
---|
7103 | NFSBCOPY(cp, str, len); |
---|
7104 | str[len] = '\0'; |
---|
7105 | NFSCL_DEBUG(4, "nfsrv_parseug: str=%s\n", str); |
---|
7106 | if (dogrp != 0) |
---|
7107 | error = nfsv4_strtogid(nd, str, len, gidp, p); |
---|
7108 | else |
---|
7109 | error = nfsv4_strtouid(nd, str, len, uidp, p); |
---|
7110 | nfsmout: |
---|
7111 | if (len > NFSV4_SMALLSTR) |
---|
7112 | free(str, M_TEMP); |
---|
7113 | NFSCL_DEBUG(4, "eo nfsrv_parseug=%d\n", error); |
---|
7114 | return (error); |
---|
7115 | } |
---|
7116 | |
---|
7117 | /* |
---|
7118 | * Similar to nfsrpc_getlayout(), except that it uses nfsrpc_openlayget(), |
---|
7119 | * so that it does both an Open and a Layoutget. |
---|
7120 | */ |
---|
7121 | static int |
---|
7122 | nfsrpc_getopenlayout(struct nfsmount *nmp, vnode_t vp, u_int8_t *nfhp, |
---|
7123 | int fhlen, uint8_t *newfhp, int newfhlen, uint32_t mode, |
---|
7124 | struct nfsclopen *op, uint8_t *name, int namelen, struct nfscldeleg **dpp, |
---|
7125 | struct ucred *cred, NFSPROC_T *p) |
---|
7126 | { |
---|
7127 | struct nfscllayout *lyp; |
---|
7128 | struct nfsclflayout *flp; |
---|
7129 | struct nfsclflayouthead flh; |
---|
7130 | int error, islocked, layoutlen, recalled, retonclose, usecurstateid; |
---|
7131 | int layouttype, laystat; |
---|
7132 | nfsv4stateid_t stateid; |
---|
7133 | struct nfsclsession *tsep; |
---|
7134 | |
---|
7135 | error = 0; |
---|
7136 | if (NFSHASFLEXFILE(nmp)) |
---|
7137 | layouttype = NFSLAYOUT_FLEXFILE; |
---|
7138 | else |
---|
7139 | layouttype = NFSLAYOUT_NFSV4_1_FILES; |
---|
7140 | /* |
---|
7141 | * If lyp is returned non-NULL, there will be a refcnt (shared lock) |
---|
7142 | * on it, iff flp != NULL or a lock (exclusive lock) on it iff |
---|
7143 | * flp == NULL. |
---|
7144 | */ |
---|
7145 | lyp = nfscl_getlayout(nmp->nm_clp, newfhp, newfhlen, 0, &flp, |
---|
7146 | &recalled); |
---|
7147 | NFSCL_DEBUG(4, "nfsrpc_getopenlayout nfscl_getlayout lyp=%p\n", lyp); |
---|
7148 | if (lyp == NULL) |
---|
7149 | islocked = 0; |
---|
7150 | else if (flp != NULL) |
---|
7151 | islocked = 1; |
---|
7152 | else |
---|
7153 | islocked = 2; |
---|
7154 | if ((lyp == NULL || flp == NULL) && recalled == 0) { |
---|
7155 | LIST_INIT(&flh); |
---|
7156 | tsep = nfsmnt_mdssession(nmp); |
---|
7157 | layoutlen = tsep->nfsess_maxcache - (NFSX_STATEID + |
---|
7158 | 3 * NFSX_UNSIGNED); |
---|
7159 | if (lyp == NULL) |
---|
7160 | usecurstateid = 1; |
---|
7161 | else { |
---|
7162 | usecurstateid = 0; |
---|
7163 | stateid.seqid = lyp->nfsly_stateid.seqid; |
---|
7164 | stateid.other[0] = lyp->nfsly_stateid.other[0]; |
---|
7165 | stateid.other[1] = lyp->nfsly_stateid.other[1]; |
---|
7166 | stateid.other[2] = lyp->nfsly_stateid.other[2]; |
---|
7167 | } |
---|
7168 | error = nfsrpc_openlayoutrpc(nmp, vp, nfhp, fhlen, |
---|
7169 | newfhp, newfhlen, mode, op, name, namelen, |
---|
7170 | dpp, &stateid, usecurstateid, layouttype, layoutlen, |
---|
7171 | &retonclose, &flh, &laystat, cred, p); |
---|
7172 | NFSCL_DEBUG(4, "aft nfsrpc_openlayoutrpc laystat=%d err=%d\n", |
---|
7173 | laystat, error); |
---|
7174 | laystat = nfsrpc_layoutgetres(nmp, vp, newfhp, newfhlen, |
---|
7175 | &stateid, retonclose, NULL, &lyp, &flh, layouttype, laystat, |
---|
7176 | &islocked, cred, p); |
---|
7177 | } else |
---|
7178 | error = nfsrpc_openrpc(nmp, vp, nfhp, fhlen, newfhp, newfhlen, |
---|
7179 | mode, op, name, namelen, dpp, 0, 0, cred, p, 0, 0); |
---|
7180 | if (islocked == 2) |
---|
7181 | nfscl_rellayout(lyp, 1); |
---|
7182 | else if (islocked == 1) |
---|
7183 | nfscl_rellayout(lyp, 0); |
---|
7184 | return (error); |
---|
7185 | } |
---|
7186 | |
---|
7187 | /* |
---|
7188 | * This function does an Open+LayoutGet for an NFSv4.1 mount with pNFS |
---|
7189 | * enabled, only for the CLAIM_NULL case. All other NFSv4 Opens are |
---|
7190 | * handled by nfsrpc_openrpc(). |
---|
7191 | * For the case where op == NULL, dvp is the directory. When op != NULL, it |
---|
7192 | * can be NULL. |
---|
7193 | */ |
---|
7194 | static int |
---|
7195 | nfsrpc_openlayoutrpc(struct nfsmount *nmp, vnode_t vp, u_int8_t *nfhp, |
---|
7196 | int fhlen, uint8_t *newfhp, int newfhlen, uint32_t mode, |
---|
7197 | struct nfsclopen *op, uint8_t *name, int namelen, struct nfscldeleg **dpp, |
---|
7198 | nfsv4stateid_t *stateidp, int usecurstateid, int layouttype, |
---|
7199 | int layoutlen, int *retonclosep, struct nfsclflayouthead *flhp, |
---|
7200 | int *laystatp, struct ucred *cred, NFSPROC_T *p) |
---|
7201 | { |
---|
7202 | uint32_t *tl; |
---|
7203 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
7204 | struct nfscldeleg *ndp = NULL; |
---|
7205 | struct nfsvattr nfsva; |
---|
7206 | struct nfsclsession *tsep; |
---|
7207 | uint32_t rflags, deleg; |
---|
7208 | nfsattrbit_t attrbits; |
---|
7209 | int error, ret, acesize, limitby, iomode; |
---|
7210 | |
---|
7211 | *dpp = NULL; |
---|
7212 | *laystatp = ENXIO; |
---|
7213 | nfscl_reqstart(nd, NFSPROC_OPENLAYGET, nmp, nfhp, fhlen, NULL, NULL, |
---|
7214 | 0, 0); |
---|
7215 | NFSM_BUILD(tl, uint32_t *, 5 * NFSX_UNSIGNED); |
---|
7216 | *tl++ = txdr_unsigned(op->nfso_own->nfsow_seqid); |
---|
7217 | *tl++ = txdr_unsigned(mode & NFSV4OPEN_ACCESSBOTH); |
---|
7218 | *tl++ = txdr_unsigned((mode >> NFSLCK_SHIFT) & NFSV4OPEN_DENYBOTH); |
---|
7219 | tsep = nfsmnt_mdssession(nmp); |
---|
7220 | *tl++ = tsep->nfsess_clientid.lval[0]; |
---|
7221 | *tl = tsep->nfsess_clientid.lval[1]; |
---|
7222 | nfsm_strtom(nd, op->nfso_own->nfsow_owner, NFSV4CL_LOCKNAMELEN); |
---|
7223 | NFSM_BUILD(tl, uint32_t *, 2 * NFSX_UNSIGNED); |
---|
7224 | *tl++ = txdr_unsigned(NFSV4OPEN_NOCREATE); |
---|
7225 | *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); |
---|
7226 | nfsm_strtom(nd, name, namelen); |
---|
7227 | NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); |
---|
7228 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
7229 | NFSZERO_ATTRBIT(&attrbits); |
---|
7230 | NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_CHANGE); |
---|
7231 | NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMEMODIFY); |
---|
7232 | nfsrv_putattrbit(nd, &attrbits); |
---|
7233 | NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); |
---|
7234 | *tl = txdr_unsigned(NFSV4OP_LAYOUTGET); |
---|
7235 | if ((mode & NFSV4OPEN_ACCESSWRITE) != 0) |
---|
7236 | iomode = NFSLAYOUTIOMODE_RW; |
---|
7237 | else |
---|
7238 | iomode = NFSLAYOUTIOMODE_READ; |
---|
7239 | nfsrv_setuplayoutget(nd, iomode, 0, UINT64_MAX, 0, stateidp, |
---|
7240 | layouttype, layoutlen, usecurstateid); |
---|
7241 | error = newnfs_request(nd, nmp, NULL, &nmp->nm_sockreq, vp, p, cred, |
---|
7242 | NFS_PROG, NFS_VER4, NULL, 1, NULL, NULL); |
---|
7243 | if (error != 0) |
---|
7244 | return (error); |
---|
7245 | NFSCL_INCRSEQID(op->nfso_own->nfsow_seqid, nd); |
---|
7246 | if (nd->nd_repstat != 0) |
---|
7247 | *laystatp = nd->nd_repstat; |
---|
7248 | if ((nd->nd_flag & ND_NOMOREDATA) == 0) { |
---|
7249 | /* ND_NOMOREDATA will be set if the Open operation failed. */ |
---|
7250 | NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + |
---|
7251 | 6 * NFSX_UNSIGNED); |
---|
7252 | op->nfso_stateid.seqid = *tl++; |
---|
7253 | op->nfso_stateid.other[0] = *tl++; |
---|
7254 | op->nfso_stateid.other[1] = *tl++; |
---|
7255 | op->nfso_stateid.other[2] = *tl; |
---|
7256 | rflags = fxdr_unsigned(u_int32_t, *(tl + 6)); |
---|
7257 | error = nfsrv_getattrbits(nd, &attrbits, NULL, NULL); |
---|
7258 | if (error != 0) |
---|
7259 | goto nfsmout; |
---|
7260 | NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
7261 | deleg = fxdr_unsigned(u_int32_t, *tl); |
---|
7262 | if (deleg == NFSV4OPEN_DELEGATEREAD || |
---|
7263 | deleg == NFSV4OPEN_DELEGATEWRITE) { |
---|
7264 | if (!(op->nfso_own->nfsow_clp->nfsc_flags & |
---|
7265 | NFSCLFLAGS_FIRSTDELEG)) |
---|
7266 | op->nfso_own->nfsow_clp->nfsc_flags |= |
---|
7267 | (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); |
---|
7268 | ndp = malloc(sizeof(struct nfscldeleg) + newfhlen, |
---|
7269 | M_NFSCLDELEG, M_WAITOK); |
---|
7270 | LIST_INIT(&ndp->nfsdl_owner); |
---|
7271 | LIST_INIT(&ndp->nfsdl_lock); |
---|
7272 | ndp->nfsdl_clp = op->nfso_own->nfsow_clp; |
---|
7273 | ndp->nfsdl_fhlen = newfhlen; |
---|
7274 | NFSBCOPY(newfhp, ndp->nfsdl_fh, newfhlen); |
---|
7275 | newnfs_copyincred(cred, &ndp->nfsdl_cred); |
---|
7276 | nfscl_lockinit(&ndp->nfsdl_rwlock); |
---|
7277 | NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + |
---|
7278 | NFSX_UNSIGNED); |
---|
7279 | ndp->nfsdl_stateid.seqid = *tl++; |
---|
7280 | ndp->nfsdl_stateid.other[0] = *tl++; |
---|
7281 | ndp->nfsdl_stateid.other[1] = *tl++; |
---|
7282 | ndp->nfsdl_stateid.other[2] = *tl++; |
---|
7283 | ret = fxdr_unsigned(int, *tl); |
---|
7284 | if (deleg == NFSV4OPEN_DELEGATEWRITE) { |
---|
7285 | ndp->nfsdl_flags = NFSCLDL_WRITE; |
---|
7286 | /* |
---|
7287 | * Indicates how much the file can grow. |
---|
7288 | */ |
---|
7289 | NFSM_DISSECT(tl, u_int32_t *, |
---|
7290 | 3 * NFSX_UNSIGNED); |
---|
7291 | limitby = fxdr_unsigned(int, *tl++); |
---|
7292 | switch (limitby) { |
---|
7293 | case NFSV4OPEN_LIMITSIZE: |
---|
7294 | ndp->nfsdl_sizelimit = fxdr_hyper(tl); |
---|
7295 | break; |
---|
7296 | case NFSV4OPEN_LIMITBLOCKS: |
---|
7297 | ndp->nfsdl_sizelimit = |
---|
7298 | fxdr_unsigned(u_int64_t, *tl++); |
---|
7299 | ndp->nfsdl_sizelimit *= |
---|
7300 | fxdr_unsigned(u_int64_t, *tl); |
---|
7301 | break; |
---|
7302 | default: |
---|
7303 | error = NFSERR_BADXDR; |
---|
7304 | goto nfsmout; |
---|
7305 | }; |
---|
7306 | } else |
---|
7307 | ndp->nfsdl_flags = NFSCLDL_READ; |
---|
7308 | if (ret != 0) |
---|
7309 | ndp->nfsdl_flags |= NFSCLDL_RECALL; |
---|
7310 | error = nfsrv_dissectace(nd, &ndp->nfsdl_ace, &ret, |
---|
7311 | &acesize, p); |
---|
7312 | if (error != 0) |
---|
7313 | goto nfsmout; |
---|
7314 | } else if (deleg != NFSV4OPEN_DELEGATENONE) { |
---|
7315 | error = NFSERR_BADXDR; |
---|
7316 | goto nfsmout; |
---|
7317 | } |
---|
7318 | if ((rflags & NFSV4OPEN_LOCKTYPEPOSIX) != 0 || |
---|
7319 | nfscl_assumeposixlocks) |
---|
7320 | op->nfso_posixlock = 1; |
---|
7321 | else |
---|
7322 | op->nfso_posixlock = 0; |
---|
7323 | NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
7324 | /* If the 2nd element == NFS_OK, the Getattr succeeded. */ |
---|
7325 | if (*++tl == 0) { |
---|
7326 | error = nfsv4_loadattr(nd, NULL, &nfsva, NULL, |
---|
7327 | NULL, 0, NULL, NULL, NULL, NULL, NULL, 0, |
---|
7328 | NULL, NULL, NULL, p, cred); |
---|
7329 | if (error != 0) |
---|
7330 | goto nfsmout; |
---|
7331 | if (ndp != NULL) { |
---|
7332 | ndp->nfsdl_change = nfsva.na_filerev; |
---|
7333 | ndp->nfsdl_modtime = nfsva.na_mtime; |
---|
7334 | ndp->nfsdl_flags |= NFSCLDL_MODTIMESET; |
---|
7335 | *dpp = ndp; |
---|
7336 | ndp = NULL; |
---|
7337 | } |
---|
7338 | /* |
---|
7339 | * At this point, the Open has succeeded, so set |
---|
7340 | * nd_repstat = NFS_OK. If the Layoutget failed, |
---|
7341 | * this function just won't return a layout. |
---|
7342 | */ |
---|
7343 | if (nd->nd_repstat == 0) { |
---|
7344 | NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED); |
---|
7345 | *laystatp = fxdr_unsigned(int, *++tl); |
---|
7346 | if (*laystatp == 0) { |
---|
7347 | error = nfsrv_parselayoutget(nd, |
---|
7348 | stateidp, retonclosep, flhp); |
---|
7349 | if (error != 0) |
---|
7350 | *laystatp = error; |
---|
7351 | } |
---|
7352 | } else |
---|
7353 | nd->nd_repstat = 0; /* Return 0 for Open. */ |
---|
7354 | } |
---|
7355 | } |
---|
7356 | if (nd->nd_repstat != 0 && error == 0) |
---|
7357 | error = nd->nd_repstat; |
---|
7358 | nfsmout: |
---|
7359 | free(ndp, M_NFSCLDELEG); |
---|
7360 | mbuf_freem(nd->nd_mrep); |
---|
7361 | return (error); |
---|
7362 | } |
---|
7363 | |
---|
7364 | /* |
---|
7365 | * Similar nfsrpc_createv4(), but also does the LayoutGet operation. |
---|
7366 | * Used only for mounts with pNFS enabled. |
---|
7367 | */ |
---|
7368 | static int |
---|
7369 | nfsrpc_createlayout(vnode_t dvp, char *name, int namelen, struct vattr *vap, |
---|
7370 | nfsquad_t cverf, int fmode, struct nfsclowner *owp, struct nfscldeleg **dpp, |
---|
7371 | struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, |
---|
7372 | struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, |
---|
7373 | int *dattrflagp, void *dstuff, int *unlockedp, nfsv4stateid_t *stateidp, |
---|
7374 | int usecurstateid, int layouttype, int layoutlen, int *retonclosep, |
---|
7375 | struct nfsclflayouthead *flhp, int *laystatp) |
---|
7376 | { |
---|
7377 | uint32_t *tl; |
---|
7378 | int error = 0, deleg, newone, ret, acesize, limitby; |
---|
7379 | struct nfsrv_descript nfsd, *nd = &nfsd; |
---|
7380 | struct nfsclopen *op; |
---|
7381 | struct nfscldeleg *dp = NULL; |
---|
7382 | struct nfsnode *np; |
---|
7383 | struct nfsfh *nfhp; |
---|
7384 | struct nfsclsession *tsep; |
---|
7385 | nfsattrbit_t attrbits; |
---|
7386 | nfsv4stateid_t stateid; |
---|
7387 | struct nfsmount *nmp; |
---|
7388 | |
---|
7389 | nmp = VFSTONFS(dvp->v_mount); |
---|
7390 | np = VTONFS(dvp); |
---|
7391 | *laystatp = ENXIO; |
---|
7392 | *unlockedp = 0; |
---|
7393 | *nfhpp = NULL; |
---|
7394 | *dpp = NULL; |
---|
7395 | *attrflagp = 0; |
---|
7396 | *dattrflagp = 0; |
---|
7397 | if (namelen > NFS_MAXNAMLEN) |
---|
7398 | return (ENAMETOOLONG); |
---|
7399 | NFSCL_REQSTART(nd, NFSPROC_CREATELAYGET, dvp); |
---|
7400 | /* |
---|
7401 | * For V4, this is actually an Open op. |
---|
7402 | */ |
---|
7403 | NFSM_BUILD(tl, u_int32_t *, 5 * NFSX_UNSIGNED); |
---|
7404 | *tl++ = txdr_unsigned(owp->nfsow_seqid); |
---|
7405 | *tl++ = txdr_unsigned(NFSV4OPEN_ACCESSWRITE | |
---|
7406 | NFSV4OPEN_ACCESSREAD); |
---|
7407 | *tl++ = txdr_unsigned(NFSV4OPEN_DENYNONE); |
---|
7408 | tsep = nfsmnt_mdssession(nmp); |
---|
7409 | *tl++ = tsep->nfsess_clientid.lval[0]; |
---|
7410 | *tl = tsep->nfsess_clientid.lval[1]; |
---|
7411 | nfsm_strtom(nd, owp->nfsow_owner, NFSV4CL_LOCKNAMELEN); |
---|
7412 | NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
7413 | *tl++ = txdr_unsigned(NFSV4OPEN_CREATE); |
---|
7414 | if ((fmode & O_EXCL) != 0) { |
---|
7415 | if (NFSHASSESSPERSIST(nmp)) { |
---|
7416 | /* Use GUARDED for persistent sessions. */ |
---|
7417 | *tl = txdr_unsigned(NFSCREATE_GUARDED); |
---|
7418 | nfscl_fillsattr(nd, vap, dvp, 0, 0); |
---|
7419 | } else { |
---|
7420 | /* Otherwise, use EXCLUSIVE4_1. */ |
---|
7421 | *tl = txdr_unsigned(NFSCREATE_EXCLUSIVE41); |
---|
7422 | NFSM_BUILD(tl, u_int32_t *, NFSX_VERF); |
---|
7423 | *tl++ = cverf.lval[0]; |
---|
7424 | *tl = cverf.lval[1]; |
---|
7425 | nfscl_fillsattr(nd, vap, dvp, 0, 0); |
---|
7426 | } |
---|
7427 | } else { |
---|
7428 | *tl = txdr_unsigned(NFSCREATE_UNCHECKED); |
---|
7429 | nfscl_fillsattr(nd, vap, dvp, 0, 0); |
---|
7430 | } |
---|
7431 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
7432 | *tl = txdr_unsigned(NFSV4OPEN_CLAIMNULL); |
---|
7433 | nfsm_strtom(nd, name, namelen); |
---|
7434 | /* Get the new file's handle and attributes, plus save the FH. */ |
---|
7435 | NFSM_BUILD(tl, u_int32_t *, 3 * NFSX_UNSIGNED); |
---|
7436 | *tl++ = txdr_unsigned(NFSV4OP_SAVEFH); |
---|
7437 | *tl++ = txdr_unsigned(NFSV4OP_GETFH); |
---|
7438 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
7439 | NFSGETATTR_ATTRBIT(&attrbits); |
---|
7440 | nfsrv_putattrbit(nd, &attrbits); |
---|
7441 | /* Get the directory's post-op attributes. */ |
---|
7442 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
7443 | *tl = txdr_unsigned(NFSV4OP_PUTFH); |
---|
7444 | nfsm_fhtom(nd, np->n_fhp->nfh_fh, np->n_fhp->nfh_len, 0); |
---|
7445 | NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
7446 | *tl = txdr_unsigned(NFSV4OP_GETATTR); |
---|
7447 | nfsrv_putattrbit(nd, &attrbits); |
---|
7448 | NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); |
---|
7449 | *tl++ = txdr_unsigned(NFSV4OP_RESTOREFH); |
---|
7450 | *tl = txdr_unsigned(NFSV4OP_LAYOUTGET); |
---|
7451 | nfsrv_setuplayoutget(nd, NFSLAYOUTIOMODE_RW, 0, UINT64_MAX, 0, stateidp, |
---|
7452 | layouttype, layoutlen, usecurstateid); |
---|
7453 | error = nfscl_request(nd, dvp, p, cred, dstuff); |
---|
7454 | if (error != 0) |
---|
7455 | return (error); |
---|
7456 | NFSCL_DEBUG(4, "nfsrpc_createlayout stat=%d err=%d\n", nd->nd_repstat, |
---|
7457 | error); |
---|
7458 | if (nd->nd_repstat != 0) |
---|
7459 | *laystatp = nd->nd_repstat; |
---|
7460 | NFSCL_INCRSEQID(owp->nfsow_seqid, nd); |
---|
7461 | if ((nd->nd_flag & ND_NOMOREDATA) == 0) { |
---|
7462 | NFSCL_DEBUG(4, "nfsrpc_createlayout open succeeded\n"); |
---|
7463 | NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + |
---|
7464 | 6 * NFSX_UNSIGNED); |
---|
7465 | stateid.seqid = *tl++; |
---|
7466 | stateid.other[0] = *tl++; |
---|
7467 | stateid.other[1] = *tl++; |
---|
7468 | stateid.other[2] = *tl; |
---|
7469 | nfsrv_getattrbits(nd, &attrbits, NULL, NULL); |
---|
7470 | NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); |
---|
7471 | deleg = fxdr_unsigned(int, *tl); |
---|
7472 | if (deleg == NFSV4OPEN_DELEGATEREAD || |
---|
7473 | deleg == NFSV4OPEN_DELEGATEWRITE) { |
---|
7474 | if (!(owp->nfsow_clp->nfsc_flags & |
---|
7475 | NFSCLFLAGS_FIRSTDELEG)) |
---|
7476 | owp->nfsow_clp->nfsc_flags |= |
---|
7477 | (NFSCLFLAGS_FIRSTDELEG | NFSCLFLAGS_GOTDELEG); |
---|
7478 | dp = malloc(sizeof(struct nfscldeleg) + NFSX_V4FHMAX, |
---|
7479 | M_NFSCLDELEG, M_WAITOK); |
---|
7480 | LIST_INIT(&dp->nfsdl_owner); |
---|
7481 | LIST_INIT(&dp->nfsdl_lock); |
---|
7482 | dp->nfsdl_clp = owp->nfsow_clp; |
---|
7483 | newnfs_copyincred(cred, &dp->nfsdl_cred); |
---|
7484 | nfscl_lockinit(&dp->nfsdl_rwlock); |
---|
7485 | NFSM_DISSECT(tl, u_int32_t *, NFSX_STATEID + |
---|
7486 | NFSX_UNSIGNED); |
---|
7487 | dp->nfsdl_stateid.seqid = *tl++; |
---|
7488 | dp->nfsdl_stateid.other[0] = *tl++; |
---|
7489 | dp->nfsdl_stateid.other[1] = *tl++; |
---|
7490 | dp->nfsdl_stateid.other[2] = *tl++; |
---|
7491 | ret = fxdr_unsigned(int, *tl); |
---|
7492 | if (deleg == NFSV4OPEN_DELEGATEWRITE) { |
---|
7493 | dp->nfsdl_flags = NFSCLDL_WRITE; |
---|
7494 | /* |
---|
7495 | * Indicates how much the file can grow. |
---|
7496 | */ |
---|
7497 | NFSM_DISSECT(tl, u_int32_t *, |
---|
7498 | 3 * NFSX_UNSIGNED); |
---|
7499 | limitby = fxdr_unsigned(int, *tl++); |
---|
7500 | switch (limitby) { |
---|
7501 | case NFSV4OPEN_LIMITSIZE: |
---|
7502 | dp->nfsdl_sizelimit = fxdr_hyper(tl); |
---|
7503 | break; |
---|
7504 | case NFSV4OPEN_LIMITBLOCKS: |
---|
7505 | dp->nfsdl_sizelimit = |
---|
7506 | fxdr_unsigned(u_int64_t, *tl++); |
---|
7507 | dp->nfsdl_sizelimit *= |
---|
7508 | fxdr_unsigned(u_int64_t, *tl); |
---|
7509 | break; |
---|
7510 | default: |
---|
7511 | error = NFSERR_BADXDR; |
---|
7512 | goto nfsmout; |
---|
7513 | }; |
---|
7514 | } else { |
---|
7515 | dp->nfsdl_flags = NFSCLDL_READ; |
---|
7516 | } |
---|
7517 | if (ret != 0) |
---|
7518 | dp->nfsdl_flags |= NFSCLDL_RECALL; |
---|
7519 | error = nfsrv_dissectace(nd, &dp->nfsdl_ace, &ret, |
---|
7520 | &acesize, p); |
---|
7521 | if (error != 0) |
---|
7522 | goto nfsmout; |
---|
7523 | } else if (deleg != NFSV4OPEN_DELEGATENONE) { |
---|
7524 | error = NFSERR_BADXDR; |
---|
7525 | goto nfsmout; |
---|
7526 | } |
---|
7527 | |
---|
7528 | /* Now, we should have the status for the SaveFH. */ |
---|
7529 | NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED); |
---|
7530 | if (*++tl == 0) { |
---|
7531 | NFSCL_DEBUG(4, "nfsrpc_createlayout SaveFH ok\n"); |
---|
7532 | /* |
---|
7533 | * Now, process the GetFH and Getattr for the newly |
---|
7534 | * created file. nfscl_mtofh() will set |
---|
7535 | * ND_NOMOREDATA if these weren't successful. |
---|
7536 | */ |
---|
7537 | error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp); |
---|
7538 | NFSCL_DEBUG(4, "aft nfscl_mtofh err=%d\n", error); |
---|
7539 | if (error != 0) |
---|
7540 | goto nfsmout; |
---|
7541 | } else |
---|
7542 | nd->nd_flag |= ND_NOMOREDATA; |
---|
7543 | /* Now we have the PutFH and Getattr for the directory. */ |
---|
7544 | if ((nd->nd_flag & ND_NOMOREDATA) == 0) { |
---|
7545 | NFSM_DISSECT(tl, uint32_t *, 2 * NFSX_UNSIGNED); |
---|
7546 | if (*++tl != 0) |
---|
7547 | nd->nd_flag |= ND_NOMOREDATA; |
---|
7548 | else { |
---|
7549 | NFSM_DISSECT(tl, uint32_t *, 2 * |
---|
7550 | NFSX_UNSIGNED); |
---|
7551 | if (*++tl != 0) |
---|
7552 | nd->nd_flag |= ND_NOMOREDATA; |
---|
7553 | } |
---|
7554 | } |
---|
7555 | if ((nd->nd_flag & ND_NOMOREDATA) == 0) { |
---|
7556 | /* Load the directory attributes. */ |
---|
7557 | error = nfsm_loadattr(nd, dnap); |
---|
7558 | NFSCL_DEBUG(4, "aft nfsm_loadattr err=%d\n", error); |
---|
7559 | if (error != 0) |
---|
7560 | goto nfsmout; |
---|
7561 | *dattrflagp = 1; |
---|
7562 | if (dp != NULL && *attrflagp != 0) { |
---|
7563 | dp->nfsdl_change = nnap->na_filerev; |
---|
7564 | dp->nfsdl_modtime = nnap->na_mtime; |
---|
7565 | dp->nfsdl_flags |= NFSCLDL_MODTIMESET; |
---|
7566 | } |
---|
7567 | /* |
---|
7568 | * We can now complete the Open state. |
---|
7569 | */ |
---|
7570 | nfhp = *nfhpp; |
---|
7571 | if (dp != NULL) { |
---|
7572 | dp->nfsdl_fhlen = nfhp->nfh_len; |
---|
7573 | NFSBCOPY(nfhp->nfh_fh, dp->nfsdl_fh, |
---|
7574 | nfhp->nfh_len); |
---|
7575 | } |
---|
7576 | /* |
---|
7577 | * Get an Open structure that will be |
---|
7578 | * attached to the OpenOwner, acquired already. |
---|
7579 | */ |
---|
7580 | error = nfscl_open(dvp, nfhp->nfh_fh, nfhp->nfh_len, |
---|
7581 | (NFSV4OPEN_ACCESSWRITE | NFSV4OPEN_ACCESSREAD), 0, |
---|
7582 | cred, p, NULL, &op, &newone, NULL, 0); |
---|
7583 | if (error != 0) |
---|
7584 | goto nfsmout; |
---|
7585 | op->nfso_stateid = stateid; |
---|
7586 | newnfs_copyincred(cred, &op->nfso_cred); |
---|
7587 | |
---|
7588 | nfscl_openrelease(nmp, op, error, newone); |
---|
7589 | *unlockedp = 1; |
---|
7590 | |
---|
7591 | /* Now, handle the RestoreFH and LayoutGet. */ |
---|
7592 | if (nd->nd_repstat == 0) { |
---|
7593 | NFSM_DISSECT(tl, uint32_t *, 4 * NFSX_UNSIGNED); |
---|
7594 | *laystatp = fxdr_unsigned(int, *(tl + 3)); |
---|
7595 | if (*laystatp == 0) { |
---|
7596 | error = nfsrv_parselayoutget(nd, |
---|
7597 | stateidp, retonclosep, flhp); |
---|
7598 | if (error != 0) |
---|
7599 | *laystatp = error; |
---|
7600 | } |
---|
7601 | NFSCL_DEBUG(4, "aft nfsrv_parselayout err=%d\n", |
---|
7602 | error); |
---|
7603 | } else |
---|
7604 | nd->nd_repstat = 0; |
---|
7605 | } |
---|
7606 | } |
---|
7607 | if (nd->nd_repstat != 0 && error == 0) |
---|
7608 | error = nd->nd_repstat; |
---|
7609 | if (error == NFSERR_STALECLIENTID || error == NFSERR_BADSESSION) |
---|
7610 | nfscl_initiate_recovery(owp->nfsow_clp); |
---|
7611 | nfsmout: |
---|
7612 | NFSCL_DEBUG(4, "eo nfsrpc_createlayout err=%d\n", error); |
---|
7613 | if (error == 0) |
---|
7614 | *dpp = dp; |
---|
7615 | else |
---|
7616 | free(dp, M_NFSCLDELEG); |
---|
7617 | mbuf_freem(nd->nd_mrep); |
---|
7618 | return (error); |
---|
7619 | } |
---|
7620 | |
---|
7621 | /* |
---|
7622 | * Similar to nfsrpc_getopenlayout(), except that it used for the Create case. |
---|
7623 | */ |
---|
7624 | static int |
---|
7625 | nfsrpc_getcreatelayout(vnode_t dvp, char *name, int namelen, struct vattr *vap, |
---|
7626 | nfsquad_t cverf, int fmode, struct nfsclowner *owp, struct nfscldeleg **dpp, |
---|
7627 | struct ucred *cred, NFSPROC_T *p, struct nfsvattr *dnap, |
---|
7628 | struct nfsvattr *nnap, struct nfsfh **nfhpp, int *attrflagp, |
---|
7629 | int *dattrflagp, void *dstuff, int *unlockedp) |
---|
7630 | { |
---|
7631 | struct nfscllayout *lyp; |
---|
7632 | struct nfsclflayouthead flh; |
---|
7633 | struct nfsfh *nfhp; |
---|
7634 | struct nfsclsession *tsep; |
---|
7635 | struct nfsmount *nmp; |
---|
7636 | nfsv4stateid_t stateid; |
---|
7637 | int error, layoutlen, layouttype, retonclose, laystat; |
---|
7638 | |
---|
7639 | error = 0; |
---|
7640 | nmp = VFSTONFS(dvp->v_mount); |
---|
7641 | if (NFSHASFLEXFILE(nmp)) |
---|
7642 | layouttype = NFSLAYOUT_FLEXFILE; |
---|
7643 | else |
---|
7644 | layouttype = NFSLAYOUT_NFSV4_1_FILES; |
---|
7645 | LIST_INIT(&flh); |
---|
7646 | tsep = nfsmnt_mdssession(nmp); |
---|
7647 | layoutlen = tsep->nfsess_maxcache - (NFSX_STATEID + 3 * NFSX_UNSIGNED); |
---|
7648 | error = nfsrpc_createlayout(dvp, name, namelen, vap, cverf, fmode, |
---|
7649 | owp, dpp, cred, p, dnap, nnap, nfhpp, attrflagp, dattrflagp, |
---|
7650 | dstuff, unlockedp, &stateid, 1, layouttype, layoutlen, &retonclose, |
---|
7651 | &flh, &laystat); |
---|
7652 | NFSCL_DEBUG(4, "aft nfsrpc_createlayoutrpc laystat=%d err=%d\n", |
---|
7653 | laystat, error); |
---|
7654 | lyp = NULL; |
---|
7655 | if (laystat == 0) { |
---|
7656 | nfhp = *nfhpp; |
---|
7657 | laystat = nfsrpc_layoutgetres(nmp, dvp, nfhp->nfh_fh, |
---|
7658 | nfhp->nfh_len, &stateid, retonclose, NULL, &lyp, &flh, |
---|
7659 | layouttype, laystat, NULL, cred, p); |
---|
7660 | } else |
---|
7661 | laystat = nfsrpc_layoutgetres(nmp, dvp, NULL, 0, &stateid, |
---|
7662 | retonclose, NULL, &lyp, &flh, layouttype, laystat, NULL, |
---|
7663 | cred, p); |
---|
7664 | if (laystat == 0) |
---|
7665 | nfscl_rellayout(lyp, 0); |
---|
7666 | return (error); |
---|
7667 | } |
---|
7668 | |
---|
7669 | /* |
---|
7670 | * Process the results of a layoutget() operation. |
---|
7671 | */ |
---|
7672 | static int |
---|
7673 | nfsrpc_layoutgetres(struct nfsmount *nmp, vnode_t vp, uint8_t *newfhp, |
---|
7674 | int newfhlen, nfsv4stateid_t *stateidp, int retonclose, uint32_t *notifybit, |
---|
7675 | struct nfscllayout **lypp, struct nfsclflayouthead *flhp, int layouttype, |
---|
7676 | int laystat, int *islockedp, struct ucred *cred, NFSPROC_T *p) |
---|
7677 | { |
---|
7678 | struct nfsclflayout *tflp; |
---|
7679 | struct nfscldevinfo *dip; |
---|
7680 | uint8_t *dev; |
---|
7681 | int i, mirrorcnt; |
---|
7682 | |
---|
7683 | if (laystat == NFSERR_UNKNLAYOUTTYPE) { |
---|
7684 | NFSLOCKMNT(nmp); |
---|
7685 | if (!NFSHASFLEXFILE(nmp)) { |
---|
7686 | /* Switch to using Flex File Layout. */ |
---|
7687 | nmp->nm_state |= NFSSTA_FLEXFILE; |
---|
7688 | } else if (layouttype == NFSLAYOUT_FLEXFILE) { |
---|
7689 | /* Disable pNFS. */ |
---|
7690 | NFSCL_DEBUG(1, "disable PNFS\n"); |
---|
7691 | nmp->nm_state &= ~(NFSSTA_PNFS | NFSSTA_FLEXFILE); |
---|
7692 | } |
---|
7693 | NFSUNLOCKMNT(nmp); |
---|
7694 | } |
---|
7695 | if (laystat == 0) { |
---|
7696 | NFSCL_DEBUG(4, "nfsrpc_layoutgetres at FOREACH\n"); |
---|
7697 | LIST_FOREACH(tflp, flhp, nfsfl_list) { |
---|
7698 | if (layouttype == NFSLAYOUT_FLEXFILE) |
---|
7699 | mirrorcnt = tflp->nfsfl_mirrorcnt; |
---|
7700 | else |
---|
7701 | mirrorcnt = 1; |
---|
7702 | for (i = 0; i < mirrorcnt; i++) { |
---|
7703 | laystat = nfscl_adddevinfo(nmp, NULL, i, tflp); |
---|
7704 | NFSCL_DEBUG(4, "aft adddev=%d\n", laystat); |
---|
7705 | if (laystat != 0) { |
---|
7706 | if (layouttype == NFSLAYOUT_FLEXFILE) |
---|
7707 | dev = tflp->nfsfl_ffm[i].dev; |
---|
7708 | else |
---|
7709 | dev = tflp->nfsfl_dev; |
---|
7710 | laystat = nfsrpc_getdeviceinfo(nmp, dev, |
---|
7711 | layouttype, notifybit, &dip, cred, |
---|
7712 | p); |
---|
7713 | NFSCL_DEBUG(4, "aft nfsrpc_gdi=%d\n", |
---|
7714 | laystat); |
---|
7715 | if (laystat != 0) |
---|
7716 | goto out; |
---|
7717 | laystat = nfscl_adddevinfo(nmp, dip, i, |
---|
7718 | tflp); |
---|
7719 | if (laystat != 0) |
---|
7720 | printf("nfsrpc_layoutgetresout" |
---|
7721 | ": cannot add\n"); |
---|
7722 | } |
---|
7723 | } |
---|
7724 | } |
---|
7725 | } |
---|
7726 | out: |
---|
7727 | if (laystat == 0) { |
---|
7728 | /* |
---|
7729 | * nfscl_layout() always returns with the nfsly_lock |
---|
7730 | * set to a refcnt (shared lock). |
---|
7731 | * Passing in dvp is sufficient, since it is only used to |
---|
7732 | * get the fsid for the file system. |
---|
7733 | */ |
---|
7734 | laystat = nfscl_layout(nmp, vp, newfhp, newfhlen, stateidp, |
---|
7735 | layouttype, retonclose, flhp, lypp, cred, p); |
---|
7736 | NFSCL_DEBUG(4, "nfsrpc_layoutgetres: aft nfscl_layout=%d\n", |
---|
7737 | laystat); |
---|
7738 | if (laystat == 0 && islockedp != NULL) |
---|
7739 | *islockedp = 1; |
---|
7740 | } |
---|
7741 | return (laystat); |
---|
7742 | } |
---|