1 | /*- |
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2 | * Copyright (c) 1982, 1986, 1989, 1993 |
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3 | * The Regents of the University of California. All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * 1. Redistributions of source code must retain the above copyright |
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9 | * notice, this list of conditions and the following disclaimer. |
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10 | * 2. Redistributions in binary form must reproduce the above copyright |
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11 | * notice, this list of conditions and the following disclaimer in the |
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12 | * documentation and/or other materials provided with the distribution. |
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13 | * 3. Neither the name of the University nor the names of its contributors |
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14 | * may be used to endorse or promote products derived from this software |
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15 | * without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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27 | * SUCH DAMAGE. |
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28 | * |
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29 | * @(#)file.h 8.3 (Berkeley) 1/9/95 |
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30 | * $FreeBSD$ |
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31 | */ |
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32 | |
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33 | #ifndef _SYS_FILE_H_ |
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34 | #define _SYS_FILE_H_ |
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35 | |
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36 | #ifndef _KERNEL |
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37 | #include <sys/types.h> /* XXX */ |
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38 | #include <sys/fcntl.h> |
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39 | #include <rtems/bsd/sys/unistd.h> |
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40 | #else |
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41 | #include <sys/queue.h> |
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42 | #include <sys/refcount.h> |
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43 | #include <sys/_lock.h> |
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44 | #include <sys/_mutex.h> |
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45 | #include <vm/vm.h> |
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46 | |
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47 | struct filedesc; |
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48 | struct stat; |
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49 | struct thread; |
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50 | struct uio; |
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51 | struct knote; |
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52 | struct vnode; |
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53 | |
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54 | #endif /* _KERNEL */ |
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55 | |
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56 | #define DTYPE_NONE 0 /* not yet initialized */ |
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57 | #define DTYPE_VNODE 1 /* file */ |
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58 | #define DTYPE_SOCKET 2 /* communications endpoint */ |
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59 | #define DTYPE_PIPE 3 /* pipe */ |
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60 | #define DTYPE_FIFO 4 /* fifo (named pipe) */ |
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61 | #define DTYPE_KQUEUE 5 /* event queue */ |
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62 | #define DTYPE_CRYPTO 6 /* crypto */ |
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63 | #define DTYPE_MQUEUE 7 /* posix message queue */ |
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64 | #define DTYPE_SHM 8 /* swap-backed shared memory */ |
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65 | #define DTYPE_SEM 9 /* posix semaphore */ |
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66 | #define DTYPE_PTS 10 /* pseudo teletype master device */ |
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67 | #define DTYPE_DEV 11 /* Device specific fd type */ |
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68 | #define DTYPE_PROCDESC 12 /* process descriptor */ |
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69 | #define DTYPE_LINUXEFD 13 /* emulation eventfd type */ |
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70 | #define DTYPE_LINUXTFD 14 /* emulation timerfd type */ |
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71 | |
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72 | #ifdef _KERNEL |
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73 | |
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74 | struct file; |
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75 | struct filecaps; |
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76 | struct kaiocb; |
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77 | struct kinfo_file; |
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78 | struct ucred; |
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79 | |
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80 | #define FOF_OFFSET 0x01 /* Use the offset in uio argument */ |
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81 | #define FOF_NOLOCK 0x02 /* Do not take FOFFSET_LOCK */ |
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82 | #define FOF_NEXTOFF 0x04 /* Also update f_nextoff */ |
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83 | #define FOF_NOUPDATE 0x10 /* Do not update f_offset */ |
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84 | off_t foffset_lock(struct file *fp, int flags); |
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85 | void foffset_lock_uio(struct file *fp, struct uio *uio, int flags); |
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86 | void foffset_unlock(struct file *fp, off_t val, int flags); |
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87 | void foffset_unlock_uio(struct file *fp, struct uio *uio, int flags); |
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88 | |
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89 | static inline off_t |
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90 | foffset_get(struct file *fp) |
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91 | { |
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92 | |
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93 | return (foffset_lock(fp, FOF_NOLOCK)); |
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94 | } |
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95 | |
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96 | typedef int fo_rdwr_t(struct file *fp, struct uio *uio, |
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97 | struct ucred *active_cred, int flags, |
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98 | struct thread *td); |
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99 | typedef int fo_truncate_t(struct file *fp, off_t length, |
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100 | struct ucred *active_cred, struct thread *td); |
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101 | typedef int fo_ioctl_t(struct file *fp, u_long com, void *data, |
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102 | struct ucred *active_cred, struct thread *td); |
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103 | typedef int fo_poll_t(struct file *fp, int events, |
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104 | struct ucred *active_cred, struct thread *td); |
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105 | typedef int fo_kqfilter_t(struct file *fp, struct knote *kn); |
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106 | typedef int fo_stat_t(struct file *fp, struct stat *sb, |
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107 | struct ucred *active_cred, struct thread *td); |
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108 | typedef int fo_close_t(struct file *fp, struct thread *td); |
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109 | typedef int fo_chmod_t(struct file *fp, mode_t mode, |
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110 | struct ucred *active_cred, struct thread *td); |
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111 | typedef int fo_chown_t(struct file *fp, uid_t uid, gid_t gid, |
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112 | struct ucred *active_cred, struct thread *td); |
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113 | typedef int fo_sendfile_t(struct file *fp, int sockfd, struct uio *hdr_uio, |
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114 | struct uio *trl_uio, off_t offset, size_t nbytes, |
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115 | off_t *sent, int flags, struct thread *td); |
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116 | typedef int fo_seek_t(struct file *fp, off_t offset, int whence, |
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117 | struct thread *td); |
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118 | typedef int fo_fill_kinfo_t(struct file *fp, struct kinfo_file *kif, |
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119 | struct filedesc *fdp); |
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120 | typedef int fo_mmap_t(struct file *fp, vm_map_t map, vm_offset_t *addr, |
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121 | vm_size_t size, vm_prot_t prot, vm_prot_t cap_maxprot, |
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122 | int flags, vm_ooffset_t foff, struct thread *td); |
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123 | typedef int fo_aio_queue_t(struct file *fp, struct kaiocb *job); |
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124 | typedef int fo_flags_t; |
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125 | |
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126 | struct fileops { |
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127 | fo_rdwr_t *fo_read; |
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128 | fo_rdwr_t *fo_write; |
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129 | fo_truncate_t *fo_truncate; |
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130 | fo_ioctl_t *fo_ioctl; |
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131 | fo_poll_t *fo_poll; |
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132 | fo_kqfilter_t *fo_kqfilter; |
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133 | fo_stat_t *fo_stat; |
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134 | fo_close_t *fo_close; |
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135 | fo_chmod_t *fo_chmod; |
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136 | fo_chown_t *fo_chown; |
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137 | fo_sendfile_t *fo_sendfile; |
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138 | fo_seek_t *fo_seek; |
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139 | fo_fill_kinfo_t *fo_fill_kinfo; |
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140 | fo_mmap_t *fo_mmap; |
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141 | fo_aio_queue_t *fo_aio_queue; |
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142 | fo_flags_t fo_flags; /* DFLAG_* below */ |
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143 | }; |
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144 | |
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145 | #define DFLAG_PASSABLE 0x01 /* may be passed via unix sockets. */ |
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146 | #define DFLAG_SEEKABLE 0x02 /* seekable / nonsequential */ |
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147 | #endif /* _KERNEL */ |
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148 | |
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149 | #if defined(_KERNEL) || defined(_WANT_FILE) |
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150 | #ifdef __rtems__ |
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151 | #include <rtems/libio_.h> |
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152 | #include <sys/fcntl.h> |
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153 | #endif /* __rtems__ */ |
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154 | /* |
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155 | * Kernel descriptor table. |
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156 | * One entry for each open kernel vnode and socket. |
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157 | * |
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158 | * Below is the list of locks that protects members in struct file. |
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159 | * |
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160 | * (a) f_vnode lock required (shared allows both reads and writes) |
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161 | * (f) protected with mtx_lock(mtx_pool_find(fp)) |
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162 | * (d) cdevpriv_mtx |
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163 | * none not locked |
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164 | */ |
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165 | |
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166 | struct fadvise_info { |
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167 | int fa_advice; /* (f) FADV_* type. */ |
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168 | off_t fa_start; /* (f) Region start. */ |
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169 | off_t fa_end; /* (f) Region end. */ |
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170 | }; |
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171 | |
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172 | struct file { |
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173 | #ifndef __rtems__ |
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174 | void *f_data; /* file descriptor specific data */ |
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175 | struct fileops *f_ops; /* File operations */ |
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176 | struct ucred *f_cred; /* associated credentials. */ |
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177 | struct vnode *f_vnode; /* NULL or applicable vnode */ |
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178 | short f_type; /* descriptor type */ |
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179 | short f_vnread_flags; /* (f) Sleep lock for f_offset */ |
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180 | volatile u_int f_flag; /* see fcntl.h */ |
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181 | volatile u_int f_count; /* reference count */ |
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182 | /* |
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183 | * DTYPE_VNODE specific fields. |
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184 | */ |
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185 | int f_seqcount; /* (a) Count of sequential accesses. */ |
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186 | off_t f_nextoff; /* next expected read/write offset. */ |
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187 | union { |
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188 | struct cdev_privdata *fvn_cdevpriv; |
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189 | /* (d) Private data for the cdev. */ |
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190 | struct fadvise_info *fvn_advice; |
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191 | } f_vnun; |
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192 | /* |
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193 | * DFLAG_SEEKABLE specific fields |
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194 | */ |
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195 | off_t f_offset; |
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196 | /* |
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197 | * Mandatory Access control information. |
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198 | */ |
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199 | void *f_label; /* Place-holder for MAC label. */ |
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200 | #else /* __rtems__ */ |
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201 | rtems_libio_t f_io; |
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202 | union { |
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203 | struct cdev_privdata *fvn_cdevpriv; |
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204 | /* (d) Private data for the cdev. */ |
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205 | } f_vnun; |
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206 | #endif /* __rtems__ */ |
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207 | }; |
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208 | #ifdef __rtems__ |
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209 | #define f_data f_io.pathinfo.node_access_2 |
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210 | |
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211 | static inline struct file * |
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212 | rtems_bsd_iop_to_fp(rtems_libio_t *iop) |
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213 | { |
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214 | return (struct file *) iop; |
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215 | } |
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216 | |
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217 | static inline struct file * |
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218 | rtems_bsd_fd_to_fp(int fd) |
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219 | { |
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220 | return rtems_bsd_iop_to_fp(&rtems_libio_iops[fd]); |
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221 | } |
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222 | |
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223 | static inline int |
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224 | rtems_bsd_fp_to_fd(struct file *fp) |
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225 | { |
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226 | return fp - rtems_bsd_iop_to_fp(&rtems_libio_iops[0]); |
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227 | } |
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228 | |
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229 | static inline void * |
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230 | rtems_bsd_loc_to_f_data(const rtems_filesystem_location_info_t *loc) |
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231 | { |
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232 | return loc->node_access_2; |
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233 | } |
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234 | |
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235 | static inline uint32_t |
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236 | rtems_bsd_fflag_to_libio_flags(u_int fflag) |
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237 | { |
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238 | uint32_t libio_flags = 0; |
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239 | |
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240 | if ((fflag & FREAD) == FREAD) { |
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241 | libio_flags |= LIBIO_FLAGS_READ; |
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242 | } |
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243 | |
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244 | if ((fflag & FWRITE) == FWRITE) { |
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245 | libio_flags |= LIBIO_FLAGS_WRITE; |
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246 | } |
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247 | |
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248 | if ((fflag & FNONBLOCK) == FNONBLOCK) { |
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249 | libio_flags |= LIBIO_FLAGS_NO_DELAY; |
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250 | } |
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251 | |
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252 | return (libio_flags); |
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253 | } |
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254 | |
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255 | static inline u_int |
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256 | rtems_bsd_libio_flags_to_fflag(uint32_t libio_flags) |
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257 | { |
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258 | u_int fflag = 0; |
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259 | |
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260 | if ((libio_flags & LIBIO_FLAGS_READ) == LIBIO_FLAGS_READ) { |
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261 | fflag |= FREAD; |
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262 | } |
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263 | |
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264 | if ((libio_flags & LIBIO_FLAGS_WRITE) == LIBIO_FLAGS_WRITE) { |
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265 | fflag |= FWRITE; |
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266 | } |
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267 | |
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268 | if ((libio_flags & LIBIO_FLAGS_NO_DELAY) == LIBIO_FLAGS_NO_DELAY) { |
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269 | fflag |= FNONBLOCK; |
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270 | } |
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271 | |
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272 | return (fflag); |
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273 | } |
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274 | |
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275 | static int inline |
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276 | rtems_bsd_error_to_status_and_errno(int error) |
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277 | { |
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278 | if (error == 0) { |
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279 | return 0; |
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280 | } else { |
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281 | rtems_set_errno_and_return_minus_one(error); |
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282 | } |
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283 | } |
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284 | #endif /* __rtems__ */ |
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285 | |
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286 | #define f_cdevpriv f_vnun.fvn_cdevpriv |
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287 | #define f_advice f_vnun.fvn_advice |
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288 | |
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289 | #define FOFFSET_LOCKED 0x1 |
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290 | #define FOFFSET_LOCK_WAITING 0x2 |
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291 | #define FDEVFS_VNODE 0x4 |
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292 | |
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293 | #endif /* _KERNEL || _WANT_FILE */ |
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294 | |
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295 | /* |
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296 | * Userland version of struct file, for sysctl |
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297 | */ |
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298 | struct xfile { |
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299 | size_t xf_size; /* size of struct xfile */ |
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300 | pid_t xf_pid; /* owning process */ |
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301 | uid_t xf_uid; /* effective uid of owning process */ |
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302 | int xf_fd; /* descriptor number */ |
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303 | void *xf_file; /* address of struct file */ |
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304 | short xf_type; /* descriptor type */ |
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305 | int xf_count; /* reference count */ |
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306 | int xf_msgcount; /* references from message queue */ |
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307 | off_t xf_offset; /* file offset */ |
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308 | void *xf_data; /* file descriptor specific data */ |
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309 | void *xf_vnode; /* vnode pointer */ |
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310 | u_int xf_flag; /* flags (see fcntl.h) */ |
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311 | }; |
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312 | |
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313 | #ifdef _KERNEL |
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314 | |
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315 | extern struct fileops vnops; |
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316 | extern struct fileops badfileops; |
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317 | #ifndef __rtems__ |
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318 | extern struct fileops socketops; |
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319 | #else /* __rtems__ */ |
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320 | extern const rtems_filesystem_file_handlers_r socketops; |
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321 | #endif /* __rtems__ */ |
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322 | extern int maxfiles; /* kernel limit on number of open files */ |
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323 | extern int maxfilesperproc; /* per process limit on number of open files */ |
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324 | extern volatile int openfiles; /* actual number of open files */ |
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325 | |
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326 | #ifndef __rtems__ |
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327 | int fget(struct thread *td, int fd, cap_rights_t *rightsp, struct file **fpp); |
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328 | #else /* __rtems__ */ |
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329 | struct file *rtems_bsd_get_file(int fd); |
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330 | |
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331 | static inline int |
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332 | rtems_bsd_do_fget(int fd, struct file **fpp) |
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333 | { |
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334 | struct file *fp = rtems_bsd_get_file(fd); |
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335 | |
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336 | *fpp = fp; |
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337 | |
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338 | return fp != NULL ? 0 : EBADF; |
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339 | } |
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340 | |
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341 | #define fget(td, fd, rights, fpp) rtems_bsd_do_fget(fd, fpp) |
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342 | #endif /* __rtems__ */ |
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343 | int fget_mmap(struct thread *td, int fd, cap_rights_t *rightsp, |
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344 | u_char *maxprotp, struct file **fpp); |
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345 | int fget_read(struct thread *td, int fd, cap_rights_t *rightsp, |
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346 | struct file **fpp); |
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347 | int fget_write(struct thread *td, int fd, cap_rights_t *rightsp, |
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348 | struct file **fpp); |
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349 | int fget_fcntl(struct thread *td, int fd, cap_rights_t *rightsp, |
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350 | int needfcntl, struct file **fpp); |
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351 | int _fdrop(struct file *fp, struct thread *td); |
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352 | |
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353 | #ifndef __rtems__ |
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354 | fo_rdwr_t invfo_rdwr; |
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355 | fo_truncate_t invfo_truncate; |
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356 | fo_ioctl_t invfo_ioctl; |
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357 | fo_poll_t invfo_poll; |
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358 | fo_kqfilter_t invfo_kqfilter; |
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359 | fo_chmod_t invfo_chmod; |
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360 | fo_chown_t invfo_chown; |
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361 | fo_sendfile_t invfo_sendfile; |
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362 | |
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363 | fo_sendfile_t vn_sendfile; |
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364 | fo_seek_t vn_seek; |
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365 | fo_fill_kinfo_t vn_fill_kinfo; |
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366 | int vn_fill_kinfo_vnode(struct vnode *vp, struct kinfo_file *kif); |
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367 | #else /* __rtems__ */ |
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368 | int rtems_bsd_soo_kqfilter(rtems_libio_t *iop, struct knote *kn); |
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369 | #endif /* __rtems__ */ |
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370 | |
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371 | #ifndef __rtems__ |
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372 | void finit(struct file *, u_int, short, void *, struct fileops *); |
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373 | #else /* __rtems__ */ |
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374 | static inline void |
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375 | finit(struct file *fp, u_int fflag, short type, void *data, |
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376 | const rtems_filesystem_file_handlers_r *ops) |
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377 | { |
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378 | rtems_filesystem_location_info_t *pathinfo = &fp->f_io.pathinfo; |
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379 | |
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380 | (void) type; |
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381 | |
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382 | fp->f_data = data; |
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383 | fp->f_io.flags |= rtems_bsd_fflag_to_libio_flags(fflag); |
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384 | |
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385 | pathinfo->handlers = ops; |
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386 | } |
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387 | #endif /* __rtems__ */ |
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388 | int fgetvp(struct thread *td, int fd, cap_rights_t *rightsp, |
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389 | struct vnode **vpp); |
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390 | int fgetvp_exec(struct thread *td, int fd, cap_rights_t *rightsp, |
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391 | struct vnode **vpp); |
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392 | int fgetvp_rights(struct thread *td, int fd, cap_rights_t *needrightsp, |
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393 | struct filecaps *havecaps, struct vnode **vpp); |
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394 | int fgetvp_read(struct thread *td, int fd, cap_rights_t *rightsp, |
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395 | struct vnode **vpp); |
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396 | int fgetvp_write(struct thread *td, int fd, cap_rights_t *rightsp, |
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397 | struct vnode **vpp); |
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398 | |
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399 | static __inline int |
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400 | _fnoop(void) |
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401 | { |
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402 | |
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403 | return (0); |
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404 | } |
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405 | |
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406 | #define fhold(fp) \ |
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407 | (refcount_acquire(&(fp)->f_count)) |
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408 | #ifndef __rtems__ |
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409 | #define fdrop(fp, td) \ |
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410 | (refcount_release(&(fp)->f_count) ? _fdrop((fp), (td)) : _fnoop()) |
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411 | #else /* __rtems__ */ |
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412 | #define fdrop(fp, td) do { } while (0) |
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413 | #endif /* __rtems__ */ |
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414 | |
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415 | #ifndef __rtems__ |
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416 | static __inline fo_rdwr_t fo_read; |
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417 | static __inline fo_rdwr_t fo_write; |
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418 | static __inline fo_truncate_t fo_truncate; |
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419 | static __inline fo_ioctl_t fo_ioctl; |
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420 | static __inline fo_poll_t fo_poll; |
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421 | static __inline fo_kqfilter_t fo_kqfilter; |
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422 | static __inline fo_stat_t fo_stat; |
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423 | static __inline fo_close_t fo_close; |
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424 | static __inline fo_chmod_t fo_chmod; |
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425 | static __inline fo_chown_t fo_chown; |
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426 | static __inline fo_sendfile_t fo_sendfile; |
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427 | |
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428 | static __inline int |
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429 | fo_read(struct file *fp, struct uio *uio, struct ucred *active_cred, |
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430 | int flags, struct thread *td) |
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431 | { |
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432 | |
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433 | return ((*fp->f_ops->fo_read)(fp, uio, active_cred, flags, td)); |
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434 | } |
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435 | |
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436 | static __inline int |
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437 | fo_write(struct file *fp, struct uio *uio, struct ucred *active_cred, |
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438 | int flags, struct thread *td) |
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439 | { |
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440 | |
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441 | return ((*fp->f_ops->fo_write)(fp, uio, active_cred, flags, td)); |
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442 | } |
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443 | |
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444 | static __inline int |
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445 | fo_truncate(struct file *fp, off_t length, struct ucred *active_cred, |
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446 | struct thread *td) |
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447 | { |
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448 | |
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449 | return ((*fp->f_ops->fo_truncate)(fp, length, active_cred, td)); |
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450 | } |
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451 | #endif /* __rtems__ */ |
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452 | |
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453 | static __inline int |
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454 | fo_ioctl(struct file *fp, u_long com, void *data, struct ucred *active_cred, |
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455 | struct thread *td) |
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456 | { |
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457 | |
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458 | #ifndef __rtems__ |
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459 | return ((*fp->f_ops->fo_ioctl)(fp, com, data, active_cred, td)); |
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460 | #else /* __rtems__ */ |
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461 | int rv; |
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462 | |
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463 | (void) active_cred; |
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464 | (void) td; |
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465 | |
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466 | errno = 0; |
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467 | rv = ((*fp->f_io.pathinfo.handlers->ioctl_h)(&fp->f_io, com, data)); |
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468 | if (rv == 0) { |
---|
469 | return (0); |
---|
470 | } else { |
---|
471 | return (errno); |
---|
472 | } |
---|
473 | #endif /* __rtems__ */ |
---|
474 | } |
---|
475 | |
---|
476 | static __inline int |
---|
477 | fo_poll(struct file *fp, int events, struct ucred *active_cred, |
---|
478 | struct thread *td) |
---|
479 | { |
---|
480 | |
---|
481 | #ifndef __rtems__ |
---|
482 | return ((*fp->f_ops->fo_poll)(fp, events, active_cred, td)); |
---|
483 | #else /* __rtems__ */ |
---|
484 | (void) active_cred; |
---|
485 | (void) td; |
---|
486 | |
---|
487 | return ((*fp->f_io.pathinfo.handlers->poll_h)(&fp->f_io, events)); |
---|
488 | #endif /* __rtems__ */ |
---|
489 | } |
---|
490 | |
---|
491 | #ifndef __rtems__ |
---|
492 | static __inline int |
---|
493 | fo_stat(struct file *fp, struct stat *sb, struct ucred *active_cred, |
---|
494 | struct thread *td) |
---|
495 | { |
---|
496 | |
---|
497 | return ((*fp->f_ops->fo_stat)(fp, sb, active_cred, td)); |
---|
498 | } |
---|
499 | |
---|
500 | static __inline int |
---|
501 | fo_close(struct file *fp, struct thread *td) |
---|
502 | { |
---|
503 | |
---|
504 | return ((*fp->f_ops->fo_close)(fp, td)); |
---|
505 | } |
---|
506 | #endif /* __rtems__ */ |
---|
507 | |
---|
508 | static __inline int |
---|
509 | fo_kqfilter(struct file *fp, struct knote *kn) |
---|
510 | { |
---|
511 | |
---|
512 | #ifndef __rtems__ |
---|
513 | return ((*fp->f_ops->fo_kqfilter)(fp, kn)); |
---|
514 | #else /* __rtems__ */ |
---|
515 | return ((*fp->f_io.pathinfo.handlers->kqfilter_h)(&fp->f_io, kn)); |
---|
516 | #endif /* __rtems__ */ |
---|
517 | } |
---|
518 | |
---|
519 | #ifndef __rtems__ |
---|
520 | static __inline int |
---|
521 | fo_chmod(struct file *fp, mode_t mode, struct ucred *active_cred, |
---|
522 | struct thread *td) |
---|
523 | { |
---|
524 | |
---|
525 | return ((*fp->f_ops->fo_chmod)(fp, mode, active_cred, td)); |
---|
526 | } |
---|
527 | |
---|
528 | static __inline int |
---|
529 | fo_chown(struct file *fp, uid_t uid, gid_t gid, struct ucred *active_cred, |
---|
530 | struct thread *td) |
---|
531 | { |
---|
532 | |
---|
533 | return ((*fp->f_ops->fo_chown)(fp, uid, gid, active_cred, td)); |
---|
534 | } |
---|
535 | |
---|
536 | static __inline int |
---|
537 | fo_sendfile(struct file *fp, int sockfd, struct uio *hdr_uio, |
---|
538 | struct uio *trl_uio, off_t offset, size_t nbytes, off_t *sent, int flags, |
---|
539 | struct thread *td) |
---|
540 | { |
---|
541 | |
---|
542 | return ((*fp->f_ops->fo_sendfile)(fp, sockfd, hdr_uio, trl_uio, offset, |
---|
543 | nbytes, sent, flags, td)); |
---|
544 | } |
---|
545 | |
---|
546 | static __inline int |
---|
547 | fo_seek(struct file *fp, off_t offset, int whence, struct thread *td) |
---|
548 | { |
---|
549 | |
---|
550 | return ((*fp->f_ops->fo_seek)(fp, offset, whence, td)); |
---|
551 | } |
---|
552 | |
---|
553 | static __inline int |
---|
554 | fo_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp) |
---|
555 | { |
---|
556 | |
---|
557 | return ((*fp->f_ops->fo_fill_kinfo)(fp, kif, fdp)); |
---|
558 | } |
---|
559 | |
---|
560 | static __inline int |
---|
561 | fo_mmap(struct file *fp, vm_map_t map, vm_offset_t *addr, vm_size_t size, |
---|
562 | vm_prot_t prot, vm_prot_t cap_maxprot, int flags, vm_ooffset_t foff, |
---|
563 | struct thread *td) |
---|
564 | { |
---|
565 | |
---|
566 | if (fp->f_ops->fo_mmap == NULL) |
---|
567 | return (ENODEV); |
---|
568 | return ((*fp->f_ops->fo_mmap)(fp, map, addr, size, prot, cap_maxprot, |
---|
569 | flags, foff, td)); |
---|
570 | } |
---|
571 | |
---|
572 | static __inline int |
---|
573 | fo_aio_queue(struct file *fp, struct kaiocb *job) |
---|
574 | { |
---|
575 | |
---|
576 | return ((*fp->f_ops->fo_aio_queue)(fp, job)); |
---|
577 | } |
---|
578 | #endif /* __rtems__ */ |
---|
579 | |
---|
580 | #endif /* _KERNEL */ |
---|
581 | |
---|
582 | #endif /* !SYS_FILE_H */ |
---|