1 | #include <machine/rtems-bsd-user-space.h> |
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2 | |
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3 | /* $NetBSD: rpc_soc.c,v 1.6 2000/07/06 03:10:35 christos Exp $ */ |
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4 | |
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5 | /*- |
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6 | * Copyright (c) 2009, Sun Microsystems, Inc. |
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7 | * All rights reserved. |
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8 | * |
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9 | * Redistribution and use in source and binary forms, with or without |
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10 | * modification, are permitted provided that the following conditions are met: |
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11 | * - Redistributions of source code must retain the above copyright notice, |
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12 | * this list of conditions and the following disclaimer. |
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13 | * - Redistributions in binary form must reproduce the above copyright notice, |
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14 | * this list of conditions and the following disclaimer in the documentation |
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15 | * and/or other materials provided with the distribution. |
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16 | * - Neither the name of Sun Microsystems, Inc. nor the names of its |
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17 | * contributors may be used to endorse or promote products derived |
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18 | * from this software without specific prior written permission. |
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19 | * |
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20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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21 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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24 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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25 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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26 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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30 | * POSSIBILITY OF SUCH DAMAGE. |
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31 | */ |
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32 | |
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33 | /* #ident "@(#)rpc_soc.c 1.17 94/04/24 SMI" */ |
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34 | |
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35 | /* |
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36 | * Copyright (c) 1986-1991 by Sun Microsystems Inc. |
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37 | * In addition, portions of such source code were derived from Berkeley |
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38 | * 4.3 BSD under license from the Regents of the University of |
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39 | * California. |
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40 | */ |
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41 | |
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42 | #if defined(LIBC_SCCS) && !defined(lint) |
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43 | static char sccsid[] = "@(#)rpc_soc.c 1.41 89/05/02 Copyr 1988 Sun Micro"; |
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44 | #endif |
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45 | #include <sys/cdefs.h> |
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46 | __FBSDID("$FreeBSD$"); |
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47 | |
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48 | #ifdef PORTMAP |
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49 | /* |
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50 | * rpc_soc.c |
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51 | * |
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52 | * The backward compatibility routines for the earlier implementation |
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53 | * of RPC, where the only transports supported were tcp/ip and udp/ip. |
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54 | * Based on berkeley socket abstraction, now implemented on the top |
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55 | * of TLI/Streams |
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56 | */ |
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57 | |
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58 | #include "namespace.h" |
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59 | #include "reentrant.h" |
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60 | #include <sys/types.h> |
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61 | #include <sys/socket.h> |
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62 | #include <stdio.h> |
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63 | #include <rpc/rpc.h> |
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64 | #include <rpc/pmap_clnt.h> |
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65 | #include <rpc/pmap_prot.h> |
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66 | #include <rpc/nettype.h> |
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67 | #include <syslog.h> |
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68 | #include <netinet/in.h> |
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69 | #include <netdb.h> |
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70 | #include <errno.h> |
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71 | #include <syslog.h> |
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72 | #include <stdlib.h> |
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73 | #include <string.h> |
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74 | #include <unistd.h> |
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75 | #include "un-namespace.h" |
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76 | |
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77 | #include "rpc_com.h" |
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78 | #include "mt_misc.h" |
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79 | |
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80 | static CLIENT *clnt_com_create(struct sockaddr_in *, rpcprog_t, rpcvers_t, |
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81 | int *, u_int, u_int, char *); |
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82 | static SVCXPRT *svc_com_create(int, u_int, u_int, char *); |
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83 | static bool_t rpc_wrap_bcast(char *, struct netbuf *, struct netconfig *); |
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84 | |
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85 | /* XXX */ |
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86 | #define IN4_LOCALHOST_STRING "127.0.0.1" |
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87 | #define IN6_LOCALHOST_STRING "::1" |
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88 | |
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89 | /* |
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90 | * A common clnt create routine |
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91 | */ |
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92 | static CLIENT * |
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93 | clnt_com_create(raddr, prog, vers, sockp, sendsz, recvsz, tp) |
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94 | struct sockaddr_in *raddr; |
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95 | rpcprog_t prog; |
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96 | rpcvers_t vers; |
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97 | int *sockp; |
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98 | u_int sendsz; |
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99 | u_int recvsz; |
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100 | char *tp; |
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101 | { |
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102 | CLIENT *cl; |
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103 | int madefd = FALSE; |
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104 | int fd = *sockp; |
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105 | struct netconfig *nconf; |
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106 | struct netbuf bindaddr; |
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107 | |
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108 | mutex_lock(&rpcsoc_lock); |
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109 | if ((nconf = __rpc_getconfip(tp)) == NULL) { |
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110 | rpc_createerr.cf_stat = RPC_UNKNOWNPROTO; |
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111 | mutex_unlock(&rpcsoc_lock); |
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112 | return (NULL); |
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113 | } |
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114 | if (fd == RPC_ANYSOCK) { |
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115 | fd = __rpc_nconf2fd(nconf); |
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116 | if (fd == -1) |
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117 | goto syserror; |
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118 | madefd = TRUE; |
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119 | } |
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120 | |
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121 | if (raddr->sin_port == 0) { |
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122 | u_int proto; |
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123 | u_short sport; |
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124 | |
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125 | mutex_unlock(&rpcsoc_lock); /* pmap_getport is recursive */ |
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126 | proto = strcmp(tp, "udp") == 0 ? IPPROTO_UDP : IPPROTO_TCP; |
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127 | sport = pmap_getport(raddr, (u_long)prog, (u_long)vers, |
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128 | proto); |
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129 | if (sport == 0) { |
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130 | goto err; |
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131 | } |
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132 | raddr->sin_port = htons(sport); |
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133 | mutex_lock(&rpcsoc_lock); /* pmap_getport is recursive */ |
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134 | } |
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135 | |
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136 | /* Transform sockaddr_in to netbuf */ |
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137 | bindaddr.maxlen = bindaddr.len = sizeof (struct sockaddr_in); |
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138 | bindaddr.buf = raddr; |
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139 | |
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140 | bindresvport(fd, NULL); |
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141 | cl = clnt_tli_create(fd, nconf, &bindaddr, prog, vers, |
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142 | sendsz, recvsz); |
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143 | if (cl) { |
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144 | if (madefd == TRUE) { |
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145 | /* |
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146 | * The fd should be closed while destroying the handle. |
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147 | */ |
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148 | (void) CLNT_CONTROL(cl, CLSET_FD_CLOSE, NULL); |
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149 | *sockp = fd; |
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150 | } |
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151 | (void) freenetconfigent(nconf); |
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152 | mutex_unlock(&rpcsoc_lock); |
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153 | return (cl); |
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154 | } |
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155 | goto err; |
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156 | |
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157 | syserror: |
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158 | rpc_createerr.cf_stat = RPC_SYSTEMERROR; |
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159 | rpc_createerr.cf_error.re_errno = errno; |
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160 | |
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161 | err: if (madefd == TRUE) |
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162 | (void)_close(fd); |
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163 | (void) freenetconfigent(nconf); |
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164 | mutex_unlock(&rpcsoc_lock); |
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165 | return (NULL); |
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166 | } |
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167 | |
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168 | CLIENT * |
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169 | clntudp_bufcreate(raddr, prog, vers, wait, sockp, sendsz, recvsz) |
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170 | struct sockaddr_in *raddr; |
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171 | u_long prog; |
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172 | u_long vers; |
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173 | struct timeval wait; |
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174 | int *sockp; |
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175 | u_int sendsz; |
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176 | u_int recvsz; |
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177 | { |
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178 | CLIENT *cl; |
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179 | |
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180 | cl = clnt_com_create(raddr, (rpcprog_t)prog, (rpcvers_t)vers, sockp, |
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181 | sendsz, recvsz, "udp"); |
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182 | if (cl == NULL) { |
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183 | return (NULL); |
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184 | } |
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185 | (void) CLNT_CONTROL(cl, CLSET_RETRY_TIMEOUT, &wait); |
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186 | return (cl); |
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187 | } |
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188 | |
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189 | CLIENT * |
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190 | clntudp_create(raddr, program, version, wait, sockp) |
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191 | struct sockaddr_in *raddr; |
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192 | u_long program; |
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193 | u_long version; |
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194 | struct timeval wait; |
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195 | int *sockp; |
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196 | { |
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197 | |
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198 | return clntudp_bufcreate(raddr, program, version, wait, sockp, |
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199 | UDPMSGSIZE, UDPMSGSIZE); |
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200 | } |
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201 | |
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202 | CLIENT * |
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203 | clnttcp_create(raddr, prog, vers, sockp, sendsz, recvsz) |
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204 | struct sockaddr_in *raddr; |
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205 | u_long prog; |
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206 | u_long vers; |
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207 | int *sockp; |
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208 | u_int sendsz; |
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209 | u_int recvsz; |
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210 | { |
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211 | |
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212 | return clnt_com_create(raddr, (rpcprog_t)prog, (rpcvers_t)vers, sockp, |
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213 | sendsz, recvsz, "tcp"); |
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214 | } |
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215 | |
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216 | CLIENT * |
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217 | clntraw_create(prog, vers) |
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218 | u_long prog; |
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219 | u_long vers; |
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220 | { |
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221 | |
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222 | return clnt_raw_create((rpcprog_t)prog, (rpcvers_t)vers); |
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223 | } |
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224 | |
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225 | /* |
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226 | * A common server create routine |
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227 | */ |
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228 | static SVCXPRT * |
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229 | svc_com_create(fd, sendsize, recvsize, netid) |
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230 | int fd; |
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231 | u_int sendsize; |
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232 | u_int recvsize; |
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233 | char *netid; |
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234 | { |
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235 | struct netconfig *nconf; |
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236 | SVCXPRT *svc; |
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237 | int madefd = FALSE; |
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238 | int port; |
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239 | struct sockaddr_in sin; |
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240 | |
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241 | if ((nconf = __rpc_getconfip(netid)) == NULL) { |
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242 | (void) syslog(LOG_ERR, "Could not get %s transport", netid); |
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243 | return (NULL); |
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244 | } |
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245 | if (fd == RPC_ANYSOCK) { |
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246 | fd = __rpc_nconf2fd(nconf); |
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247 | if (fd == -1) { |
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248 | (void) freenetconfigent(nconf); |
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249 | (void) syslog(LOG_ERR, |
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250 | "svc%s_create: could not open connection", netid); |
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251 | return (NULL); |
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252 | } |
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253 | madefd = TRUE; |
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254 | } |
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255 | |
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256 | memset(&sin, 0, sizeof sin); |
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257 | sin.sin_family = AF_INET; |
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258 | bindresvport(fd, &sin); |
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259 | _listen(fd, SOMAXCONN); |
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260 | svc = svc_tli_create(fd, nconf, NULL, sendsize, recvsize); |
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261 | (void) freenetconfigent(nconf); |
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262 | if (svc == NULL) { |
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263 | if (madefd) |
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264 | (void)_close(fd); |
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265 | return (NULL); |
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266 | } |
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267 | port = (((struct sockaddr_in *)svc->xp_ltaddr.buf)->sin_port); |
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268 | svc->xp_port = ntohs(port); |
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269 | return (svc); |
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270 | } |
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271 | |
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272 | SVCXPRT * |
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273 | svctcp_create(fd, sendsize, recvsize) |
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274 | int fd; |
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275 | u_int sendsize; |
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276 | u_int recvsize; |
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277 | { |
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278 | |
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279 | return svc_com_create(fd, sendsize, recvsize, "tcp"); |
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280 | } |
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281 | |
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282 | SVCXPRT * |
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283 | svcudp_bufcreate(fd, sendsz, recvsz) |
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284 | int fd; |
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285 | u_int sendsz, recvsz; |
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286 | { |
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287 | |
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288 | return svc_com_create(fd, sendsz, recvsz, "udp"); |
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289 | } |
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290 | |
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291 | SVCXPRT * |
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292 | svcfd_create(fd, sendsize, recvsize) |
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293 | int fd; |
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294 | u_int sendsize; |
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295 | u_int recvsize; |
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296 | { |
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297 | |
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298 | return svc_fd_create(fd, sendsize, recvsize); |
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299 | } |
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300 | |
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301 | |
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302 | SVCXPRT * |
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303 | svcudp_create(fd) |
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304 | int fd; |
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305 | { |
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306 | |
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307 | return svc_com_create(fd, UDPMSGSIZE, UDPMSGSIZE, "udp"); |
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308 | } |
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309 | |
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310 | SVCXPRT * |
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311 | svcraw_create() |
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312 | { |
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313 | |
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314 | return svc_raw_create(); |
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315 | } |
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316 | |
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317 | int |
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318 | get_myaddress(addr) |
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319 | struct sockaddr_in *addr; |
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320 | { |
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321 | |
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322 | memset((void *) addr, 0, sizeof(*addr)); |
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323 | addr->sin_family = AF_INET; |
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324 | addr->sin_port = htons(PMAPPORT); |
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325 | addr->sin_addr.s_addr = htonl(INADDR_LOOPBACK); |
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326 | return (0); |
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327 | } |
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328 | |
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329 | /* |
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330 | * For connectionless "udp" transport. Obsoleted by rpc_call(). |
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331 | */ |
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332 | int |
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333 | callrpc(host, prognum, versnum, procnum, inproc, in, outproc, out) |
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334 | const char *host; |
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335 | int prognum, versnum, procnum; |
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336 | xdrproc_t inproc, outproc; |
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337 | void *in, *out; |
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338 | { |
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339 | |
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340 | return (int)rpc_call(host, (rpcprog_t)prognum, (rpcvers_t)versnum, |
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341 | (rpcproc_t)procnum, inproc, in, outproc, out, "udp"); |
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342 | } |
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343 | |
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344 | /* |
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345 | * For connectionless kind of transport. Obsoleted by rpc_reg() |
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346 | */ |
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347 | int |
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348 | registerrpc(prognum, versnum, procnum, progname, inproc, outproc) |
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349 | int prognum, versnum, procnum; |
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350 | char *(*progname)(char [UDPMSGSIZE]); |
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351 | xdrproc_t inproc, outproc; |
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352 | { |
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353 | |
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354 | return rpc_reg((rpcprog_t)prognum, (rpcvers_t)versnum, |
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355 | (rpcproc_t)procnum, progname, inproc, outproc, "udp"); |
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356 | } |
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357 | |
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358 | /* |
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359 | * All the following clnt_broadcast stuff is convulated; it supports |
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360 | * the earlier calling style of the callback function |
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361 | */ |
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362 | static thread_key_t clnt_broadcast_key; |
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363 | static resultproc_t clnt_broadcast_result_main; |
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364 | static once_t clnt_broadcast_once = ONCE_INITIALIZER; |
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365 | |
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366 | static void |
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367 | clnt_broadcast_key_init(void) |
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368 | { |
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369 | |
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370 | thr_keycreate(&clnt_broadcast_key, free); |
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371 | } |
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372 | |
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373 | /* |
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374 | * Need to translate the netbuf address into sockaddr_in address. |
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375 | * Dont care about netid here. |
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376 | */ |
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377 | /* ARGSUSED */ |
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378 | static bool_t |
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379 | rpc_wrap_bcast(resultp, addr, nconf) |
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380 | char *resultp; /* results of the call */ |
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381 | struct netbuf *addr; /* address of the guy who responded */ |
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382 | struct netconfig *nconf; /* Netconf of the transport */ |
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383 | { |
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384 | resultproc_t clnt_broadcast_result; |
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385 | |
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386 | if (strcmp(nconf->nc_netid, "udp")) |
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387 | return (FALSE); |
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388 | if (thr_main()) |
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389 | clnt_broadcast_result = clnt_broadcast_result_main; |
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390 | else |
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391 | clnt_broadcast_result = (resultproc_t)thr_getspecific(clnt_broadcast_key); |
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392 | return (*clnt_broadcast_result)(resultp, |
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393 | (struct sockaddr_in *)addr->buf); |
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394 | } |
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395 | |
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396 | /* |
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397 | * Broadcasts on UDP transport. Obsoleted by rpc_broadcast(). |
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398 | */ |
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399 | enum clnt_stat |
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400 | clnt_broadcast(prog, vers, proc, xargs, argsp, xresults, resultsp, eachresult) |
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401 | u_long prog; /* program number */ |
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402 | u_long vers; /* version number */ |
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403 | u_long proc; /* procedure number */ |
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404 | xdrproc_t xargs; /* xdr routine for args */ |
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405 | void *argsp; /* pointer to args */ |
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406 | xdrproc_t xresults; /* xdr routine for results */ |
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407 | void *resultsp; /* pointer to results */ |
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408 | resultproc_t eachresult; /* call with each result obtained */ |
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409 | { |
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410 | |
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411 | if (thr_main()) |
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412 | clnt_broadcast_result_main = eachresult; |
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413 | else { |
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414 | thr_once(&clnt_broadcast_once, clnt_broadcast_key_init); |
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415 | thr_setspecific(clnt_broadcast_key, (void *) eachresult); |
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416 | } |
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417 | return rpc_broadcast((rpcprog_t)prog, (rpcvers_t)vers, |
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418 | (rpcproc_t)proc, xargs, argsp, xresults, resultsp, |
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419 | (resultproc_t) rpc_wrap_bcast, "udp"); |
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420 | } |
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421 | |
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422 | /* |
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423 | * Create the client des authentication object. Obsoleted by |
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424 | * authdes_seccreate(). |
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425 | */ |
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426 | AUTH * |
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427 | authdes_create(servername, window, syncaddr, ckey) |
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428 | char *servername; /* network name of server */ |
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429 | u_int window; /* time to live */ |
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430 | struct sockaddr *syncaddr; /* optional hostaddr to sync with */ |
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431 | des_block *ckey; /* optional conversation key to use */ |
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432 | { |
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433 | AUTH *dummy; |
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434 | AUTH *nauth; |
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435 | char hostname[NI_MAXHOST]; |
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436 | |
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437 | if (syncaddr) { |
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438 | /* |
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439 | * Change addr to hostname, because that is the way |
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440 | * new interface takes it. |
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441 | */ |
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442 | if (getnameinfo(syncaddr, syncaddr->sa_len, hostname, |
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443 | sizeof hostname, NULL, 0, 0) != 0) |
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444 | goto fallback; |
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445 | |
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446 | nauth = authdes_seccreate(servername, window, hostname, ckey); |
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447 | return (nauth); |
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448 | } |
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449 | fallback: |
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450 | dummy = authdes_seccreate(servername, window, NULL, ckey); |
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451 | return (dummy); |
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452 | } |
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453 | |
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454 | /* |
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455 | * Create a client handle for a unix connection. Obsoleted by clnt_vc_create() |
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456 | */ |
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457 | CLIENT * |
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458 | clntunix_create(raddr, prog, vers, sockp, sendsz, recvsz) |
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459 | struct sockaddr_un *raddr; |
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460 | u_long prog; |
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461 | u_long vers; |
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462 | int *sockp; |
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463 | u_int sendsz; |
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464 | u_int recvsz; |
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465 | { |
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466 | struct netbuf *svcaddr; |
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467 | struct netconfig *nconf; |
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468 | CLIENT *cl; |
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469 | int len; |
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470 | |
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471 | cl = NULL; |
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472 | nconf = NULL; |
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473 | svcaddr = NULL; |
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474 | if ((raddr->sun_len == 0) || |
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475 | ((svcaddr = malloc(sizeof(struct netbuf))) == NULL ) || |
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476 | ((svcaddr->buf = malloc(sizeof(struct sockaddr_un))) == NULL)) { |
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477 | if (svcaddr != NULL) |
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478 | free(svcaddr); |
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479 | rpc_createerr.cf_stat = RPC_SYSTEMERROR; |
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480 | rpc_createerr.cf_error.re_errno = errno; |
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481 | return(cl); |
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482 | } |
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483 | if (*sockp < 0) { |
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484 | *sockp = _socket(AF_LOCAL, SOCK_STREAM, 0); |
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485 | len = raddr->sun_len = SUN_LEN(raddr); |
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486 | if ((*sockp < 0) || (_connect(*sockp, |
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487 | (struct sockaddr *)raddr, len) < 0)) { |
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488 | rpc_createerr.cf_stat = RPC_SYSTEMERROR; |
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489 | rpc_createerr.cf_error.re_errno = errno; |
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490 | if (*sockp != -1) |
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491 | (void)_close(*sockp); |
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492 | goto done; |
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493 | } |
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494 | } |
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495 | svcaddr->buf = raddr; |
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496 | svcaddr->len = raddr->sun_len; |
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497 | svcaddr->maxlen = sizeof (struct sockaddr_un); |
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498 | cl = clnt_vc_create(*sockp, svcaddr, prog, |
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499 | vers, sendsz, recvsz); |
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500 | done: |
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501 | free(svcaddr->buf); |
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502 | free(svcaddr); |
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503 | return(cl); |
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504 | } |
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505 | |
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506 | /* |
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507 | * Creates, registers, and returns a (rpc) unix based transporter. |
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508 | * Obsoleted by svc_vc_create(). |
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509 | */ |
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510 | SVCXPRT * |
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511 | svcunix_create(sock, sendsize, recvsize, path) |
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512 | int sock; |
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513 | u_int sendsize; |
---|
514 | u_int recvsize; |
---|
515 | char *path; |
---|
516 | { |
---|
517 | struct netconfig *nconf; |
---|
518 | void *localhandle; |
---|
519 | struct sockaddr_un sun; |
---|
520 | struct sockaddr *sa; |
---|
521 | struct t_bind taddr; |
---|
522 | SVCXPRT *xprt; |
---|
523 | int addrlen; |
---|
524 | |
---|
525 | xprt = (SVCXPRT *)NULL; |
---|
526 | localhandle = setnetconfig(); |
---|
527 | while ((nconf = getnetconfig(localhandle)) != NULL) { |
---|
528 | if (nconf->nc_protofmly != NULL && |
---|
529 | strcmp(nconf->nc_protofmly, NC_LOOPBACK) == 0) |
---|
530 | break; |
---|
531 | } |
---|
532 | if (nconf == NULL) |
---|
533 | return(xprt); |
---|
534 | |
---|
535 | if ((sock = __rpc_nconf2fd(nconf)) < 0) |
---|
536 | goto done; |
---|
537 | |
---|
538 | memset(&sun, 0, sizeof sun); |
---|
539 | sun.sun_family = AF_LOCAL; |
---|
540 | if (strlcpy(sun.sun_path, path, sizeof(sun.sun_path)) >= |
---|
541 | sizeof(sun.sun_path)) |
---|
542 | goto done; |
---|
543 | sun.sun_len = SUN_LEN(&sun); |
---|
544 | addrlen = sizeof (struct sockaddr_un); |
---|
545 | sa = (struct sockaddr *)&sun; |
---|
546 | |
---|
547 | if (_bind(sock, sa, addrlen) < 0) |
---|
548 | goto done; |
---|
549 | |
---|
550 | taddr.addr.len = taddr.addr.maxlen = addrlen; |
---|
551 | taddr.addr.buf = malloc(addrlen); |
---|
552 | if (taddr.addr.buf == NULL) |
---|
553 | goto done; |
---|
554 | memcpy(taddr.addr.buf, sa, addrlen); |
---|
555 | |
---|
556 | if (nconf->nc_semantics != NC_TPI_CLTS) { |
---|
557 | if (_listen(sock, SOMAXCONN) < 0) { |
---|
558 | free(taddr.addr.buf); |
---|
559 | goto done; |
---|
560 | } |
---|
561 | } |
---|
562 | |
---|
563 | xprt = (SVCXPRT *)svc_tli_create(sock, nconf, &taddr, sendsize, recvsize); |
---|
564 | |
---|
565 | done: |
---|
566 | endnetconfig(localhandle); |
---|
567 | return(xprt); |
---|
568 | } |
---|
569 | |
---|
570 | /* |
---|
571 | * Like svunix_create(), except the routine takes any *open* UNIX file |
---|
572 | * descriptor as its first input. Obsoleted by svc_fd_create(); |
---|
573 | */ |
---|
574 | SVCXPRT * |
---|
575 | svcunixfd_create(fd, sendsize, recvsize) |
---|
576 | int fd; |
---|
577 | u_int sendsize; |
---|
578 | u_int recvsize; |
---|
579 | { |
---|
580 | return (svc_fd_create(fd, sendsize, recvsize)); |
---|
581 | } |
---|
582 | |
---|
583 | #endif /* PORTMAP */ |
---|