Mercurial > hg > freeDiameter

annotate extensions/app_radgw/rgw_servers.c @ 553:153cd2600fcf

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Fix another issue
author Sebastien Decugis <sdecugis@nict.go.jp>
date Wed, 15 Sep 2010 14:52:24 +0900
parents c2a095f04e43
children 4ffbc9f1e922
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /*********************************************************************************************************
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2 * Software License Agreement (BSD License) *
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3 * Author: Sebastien Decugis <sdecugis@nict.go.jp> *
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4 * *
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5df55136361b Updated copyright information
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5 * Copyright (c) 2010, WIDE Project and NICT *
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6 * All rights reserved. *
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7 * *
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8 * Redistribution and use of this software in source and binary forms, with or without modification, are *
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9 * permitted provided that the following conditions are met: *
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10 * *
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11 * * Redistributions of source code must retain the above *
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12 * copyright notice, this list of conditions and the *
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13 * following disclaimer. *
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14 * *
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15 * * Redistributions in binary form must reproduce the above *
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16 * copyright notice, this list of conditions and the *
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17 * following disclaimer in the documentation and/or other *
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18 * materials provided with the distribution. *
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19 * *
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20 * * Neither the name of the WIDE Project or NICT nor the *
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21 * names of its contributors may be used to endorse or *
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22 * promote products derived from this software without *
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23 * specific prior written permission of WIDE Project and *
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24 * NICT. *
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25 * *
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26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED *
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27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
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28 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR *
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29 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *
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30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS *
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31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR *
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32 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF *
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33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
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34 *********************************************************************************************************/
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35
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36 /* Manage the RADIUS server(s): opening sockets, receiving messages, ... */
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38 #include "rgw.h"
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39
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40 #define RADIUS_MAX_MSG_LEN 3000
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41 #define RADIUS_AUTH_PORT 1812
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42 #define RADIUS_ACCT_PORT 1813
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43
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44 /* Declare the rgw_servers */
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45 struct rgw_servs rgw_servers;
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47 void rgw_servers_dump(void)
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48 {
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49 char ipstr[INET6_ADDRSTRLEN];
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50
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51 if ( ! TRACE_BOOL(FULL) )
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52 return;
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53
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54 fd_log_debug(" auth server:\n");
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55 fd_log_debug(" disabled..... : %s\n", rgw_servers.auth_serv.disabled ? "TRUE":"false");
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56 fd_log_debug(" IP disabled.. : %s\n", rgw_servers.auth_serv.ip_disabled ? "TRUE":"false");
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57 fd_log_debug(" IPv6 disabled : %s\n", rgw_servers.auth_serv.ip6_disabled ? "TRUE":"false");
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58 fd_log_debug(" port......... : %hu\n", ntohs(rgw_servers.auth_serv.port));
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59 inet_ntop(AF_INET, &rgw_servers.auth_serv.ip_endpoint,ipstr,sizeof(ipstr));
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60 fd_log_debug(" IP bind...... : %s\n", ipstr);
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61 inet_ntop(AF_INET6, &rgw_servers.auth_serv.ip6_endpoint,ipstr,sizeof(ipstr));
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62 fd_log_debug(" IPv6 bind.... : %s\n", ipstr);
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63
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64 fd_log_debug(" acct server:\n");
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65 fd_log_debug(" disabled..... : %s\n", rgw_servers.acct_serv.disabled ? "TRUE":"false");
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66 fd_log_debug(" IP disabled.. : %s\n", rgw_servers.acct_serv.ip_disabled ? "TRUE":"false");
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67 fd_log_debug(" IPv6 disabled : %s\n", rgw_servers.acct_serv.ip6_disabled ? "TRUE":"false");
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68 fd_log_debug(" port......... : %hu\n", ntohs(rgw_servers.acct_serv.port));
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69 inet_ntop(AF_INET, &rgw_servers.acct_serv.ip_endpoint,ipstr,sizeof(ipstr));
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70 fd_log_debug(" IP bind...... : %s\n", ipstr);
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71 inet_ntop(AF_INET6, &rgw_servers.acct_serv.ip6_endpoint,ipstr,sizeof(ipstr));
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72 fd_log_debug(" IPv6 bind.... : %s\n", ipstr);
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73
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74 }
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75
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76 static struct servers_data {
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77 int type; /* auth or acct */
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78 int family; /* AF_INET or AF_INET6 */
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79 int sock; /* the socket number */
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80 pthread_t th; /* the running server thread, or NULL */
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81 char name[10];
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82 } SERVERS[4];
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83
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84 int rgw_servers_init(void)
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85 {
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86 memset(&rgw_servers, 0, sizeof(rgw_servers));
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87 memset(&SERVERS[0], 0, sizeof(SERVERS));
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88
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89 rgw_servers.auth_serv.port = htons(RADIUS_AUTH_PORT);
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90 rgw_servers.acct_serv.port = htons(RADIUS_ACCT_PORT);
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91
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92 return 0;
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93 }
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94
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95 static void * server_thread(void * param)
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96 {
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97 struct servers_data * me = (struct servers_data *)param;
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98
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99 TRACE_ENTRY("%p", param);
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100
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101 CHECK_PARAMS_DO(param, return NULL);
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102
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103 /* Set the thread name */
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104 {
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105 char buf[48];
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106 snprintf(buf, sizeof(buf), "radgw/%s serv", me->name);
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107 fd_log_threadname ( buf );
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108 }
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109
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110 /* Now loop on this socket, parse and queue each message received, until thread is cancelled. */
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111 while (1) {
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112 struct sockaddr_storage from;
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113 socklen_t fromlen = sizeof(from);
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114 int len;
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115 struct rgw_client * nas_info = NULL;
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116 uint16_t port = 0;
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117 unsigned char buf[RADIUS_MAX_MSG_LEN];
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118 struct rgw_radius_msg_meta *msg = NULL;
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119
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120 pthread_testcancel();
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121
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122 /* receive the next message */
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123 CHECK_SYS_DO( len = recvfrom( me->sock, &buf[0], sizeof(buf), 0, (struct sockaddr *) &from, &fromlen), break );
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124
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125 /* Get the port */
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126 if (from.ss_family == AF_INET)
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127 port = ((struct sockaddr_in *)&from)->sin_port;
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128 if (from.ss_family == AF_INET6)
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129 port = ((struct sockaddr_in6 *)&from)->sin6_port;
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130 if (!port) {
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131 TRACE_DEBUG(INFO, "Invalid port (family: %d), discarding received %d bytes...", from.ss_family, len);
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132 continue;
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133 }
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134
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135 TRACE_DEBUG(FULL, "Received %d bytes", len);
263
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136 TRACE_DEBUG_sSA(FULL, " from ", &from, NI_NUMERICHOST | NI_NUMERICSERV, "" );
254
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137
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138 /* Search the associated client definition, if any */
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139 CHECK_FCT_DO( rgw_clients_search((struct sockaddr *) &from, &nas_info),
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140 {
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141 TRACE_DEBUG(INFO, "Discarding %d bytes received from unknown IP:", len);
263
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142 TRACE_DEBUG_sSA(INFO, " ", &from, NI_NUMERICHOST | NI_NUMERICSERV, "" );
254
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143 continue;
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144 } );
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145
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146
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147 /* parse the message, loop if message is invalid */
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148 CHECK_FCT_DO( rgw_msg_parse(&buf[0], len, &msg),
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149 {
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150 char * cliname = NULL;
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151 CHECK_FCT_DO( rgw_clients_get_origin(nas_info, &cliname, NULL), );
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152 TRACE_DEBUG(INFO, "Discarding invalid RADIUS message from '%s'", cliname);
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153 rgw_clients_dispose(&nas_info);
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154 continue;
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155 } );
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156
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157 msg->serv_type = me->type;
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158 msg->port = port;
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159
553
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160 rgw_msg_dump(msg, 1);
254
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161
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162 /* queue the message for a worker thread */
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163 CHECK_FCT_DO( rgw_work_add(msg, nas_info), break );
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164
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165 /* Then wait for next incoming message */
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166 }
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167
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168 TRACE_DEBUG(INFO, "Server thread terminated.");
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169 return NULL;
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170 }
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171
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172 /* Set the socket options for UDP sockets, before bind is called */
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173 static int _udp_setsockopt(int family, int sk)
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174 {
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175 int ret = 0;
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176 int opt;
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177
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178 /* In case of v6 address, force the v6only option, we use a different socket for v4 */
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179 #ifdef IPV6_V6ONLY
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180 if (family == AF_INET6) {
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181 opt = 1;
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182 ret = setsockopt(sk, IPPROTO_IPV6, IPV6_V6ONLY, &opt, sizeof(opt));
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183 if (ret != 0) {
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184 ret = errno;
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185 TRACE_DEBUG(INFO, "Unable to set the socket IPV6_V6ONLY option: %s", strerror(ret));
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186 return ret;
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187 }
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188 }
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189 #endif /* IPV6_V6ONLY */
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190
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191 return 0;
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192 }
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193
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194 /* We reuse the same logic for all 4 possible servers (IP / IPv6, Auth / Acct ports) */
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195 #define UDPSERV( _type_, _portval_, _family_ ) { \
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196 /* Check that this type / family are not disabled by configuration */ \
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197 if ( (! rgw_servers. _type_ ## _serv.disabled) \
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198 && ( ! rgw_servers. _type_ ## _serv.ip ## _family_ ## _disabled ) ) { \
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199 struct sockaddr_in ## _family_ sin ## _family_ ; \
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200 /* Create the socket */ \
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201 CHECK_SYS( SERVERS[idx].sock = socket(AF_INET ## _family_, SOCK_DGRAM, 0) ); \
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diff changeset
202 /* Set the parameters for bind into "sin" or "sin6" */ \
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diff changeset
203 memset(& sin ## _family_, 0, sizeof(struct sockaddr_in ## _family_)); \
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diff changeset
204 sin ## _family_ . sin ## _family_ ## _family = AF_INET ## _family_; \
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205 sin ## _family_ . sin ## _family_ ## _port = rgw_servers. _type_ ## _serv . port; \
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diff changeset
206 memcpy( &sin ## _family_ .sin ## _family_ ## _addr, \
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207 &rgw_servers. _type_ ## _serv . ip ## _family_ ## _endpoint, \
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diff changeset
208 sizeof(struct in ## _family_ ## _addr) ); \
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diff changeset
209 /* This sockopt must be set before binding */ \
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210 TRACE_DEBUG(ANNOYING, "Setting socket options..."); \
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diff changeset
211 CHECK_FCT( _udp_setsockopt(AF_INET ## _family_, SERVERS[idx].sock) ); \
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diff changeset
212 /* OK, now, bind */ \
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213 TRACE_DEBUG(ANNOYING, "Binding " #_type_ " ip" #_family_ " server..."); \
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diff changeset
214 CHECK_SYS( bind( SERVERS[idx].sock, \
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diff changeset
215 (struct sockaddr *)&sin ## _family_, \
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216 sizeof(struct sockaddr_in ## _family_) ) ); \
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217 /* Save the server information in SERVERS structure */ \
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218 SERVERS[idx].type = _portval_; \
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219 SERVERS[idx].family = AF_INET ## _family_; \
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220 snprintf(&SERVERS[idx].name[0], sizeof(SERVERS[idx].name), # _type_ "/ip" #_family_); \
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diff changeset
221 /* Create the server thread */ \
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222 CHECK_POSIX( pthread_create(&SERVERS[idx].th, NULL, server_thread, &SERVERS[idx]) ); \
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223 idx++; \
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224 } \
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225 }
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226
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227 int rgw_servers_start(void)
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228 {
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229 int idx = 0;
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230
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231 TRACE_ENTRY();
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232
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233 UDPSERV( auth, RGW_PLG_TYPE_AUTH, );
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234 UDPSERV( auth, RGW_PLG_TYPE_AUTH, 6 );
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235 UDPSERV( acct, RGW_PLG_TYPE_ACCT, );
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236 UDPSERV( acct, RGW_PLG_TYPE_ACCT, 6 );
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237
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238 TRACE_DEBUG(FULL, "%d UDP servers started succesfully.", idx);
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diff changeset
239 return 0;
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240 }
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241
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242 /* Send a RADIUS message */
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243 int rgw_servers_send(int type, unsigned char *buf, size_t buflen, struct sockaddr *to, uint16_t to_port)
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diff changeset
244 {
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diff changeset
245 int idx = 0;
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diff changeset
246 int ret = 0;
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diff changeset
247 struct sockaddr_storage sto;
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248
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249 /* Find the appropriate socket to use (not sure if it is important) */
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diff changeset
250 for (idx = 0; idx < sizeof(SERVERS) / sizeof(SERVERS[0]); idx++) {
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251 if ( SERVERS[idx].sock && (type == SERVERS[idx].type) && (to->sa_family == SERVERS[idx].family) ) {
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diff changeset
252 ret = 1;
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diff changeset
253 break;
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254 }
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255 }
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256
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diff changeset
257 if (!ret) {
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diff changeset
258 TRACE_DEBUG(INFO, "Trying to send a message from a disabled server: %s / %s",
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diff changeset
259 (type == RGW_PLG_TYPE_AUTH) ? "Auth" : "Acct",
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260 (to->sa_family == AF_INET) ? "IP (v4)" : "IPv6");
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diff changeset
261 return EINVAL;
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diff changeset
262 }
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diff changeset
263
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diff changeset
264 /* Prepare the destination info */
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diff changeset
265 memset(&sto, 0, sizeof(sto));
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diff changeset
266 if (to->sa_family == AF_INET) {
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diff changeset
267 memcpy(&sto, to, sizeof(struct sockaddr_in));
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diff changeset
268 ((struct sockaddr_in *)&sto)->sin_port = to_port;
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diff changeset
269 } else {
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diff changeset
270 memcpy(&sto, to, sizeof(struct sockaddr_in6));
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diff changeset
271 ((struct sockaddr_in6 *)&sto)->sin6_port = to_port;
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diff changeset
272 }
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273
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diff changeset
274 TRACE_DEBUG(FULL, "Sending %d bytes", buflen);
263
c2a095f04e43 Cleanup more newlines
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parents: 258
diff changeset
275 TRACE_DEBUG_sSA(FULL, " to ", &sto, NI_NUMERICHOST | NI_NUMERICSERV, "" );
254
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276
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277 /* Send */
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278 ret = sendto(SERVERS[idx].sock, buf, buflen, 0, (struct sockaddr *)&sto, sSAlen(&sto));
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diff changeset
279 if (ret < 0) {
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280 ret = errno;
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diff changeset
281 TRACE_DEBUG(INFO, "An error prevented sending of a RADIUS message: %s", strerror(ret));
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diff changeset
282 return ret;
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283 }
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diff changeset
284 if (ret != buflen) {
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diff changeset
285 TRACE_DEBUG(INFO, "Incomplete send: %d bytes / %zd", ret, buflen);
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diff changeset
286 return EAGAIN;
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287 }
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diff changeset
288
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diff changeset
289 /* Done :) */
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diff changeset
290 return 0;
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diff changeset
291 }
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292
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diff changeset
293 void rgw_servers_fini(void)
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diff changeset
294 {
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diff changeset
295 int idx = 0;
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296
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diff changeset
297 for (idx = 0; idx < sizeof(SERVERS) / sizeof(SERVERS[0]); idx++) {
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diff changeset
298 if (SERVERS[idx].sock == 0)
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diff changeset
299 break;
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diff changeset
300
a857024cb48b Ported the RADIUS/Diameter translation code from waaad project. Not tested yet. Gateway plugins to come later.
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parents:
diff changeset
301 CHECK_FCT_DO( fd_thr_term(&SERVERS[idx].th), /* continue */ );
a857024cb48b Ported the RADIUS/Diameter translation code from waaad project. Not tested yet. Gateway plugins to come later.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
302 close(SERVERS[idx].sock);
a857024cb48b Ported the RADIUS/Diameter translation code from waaad project. Not tested yet. Gateway plugins to come later.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
303 SERVERS[idx].sock = 0;
a857024cb48b Ported the RADIUS/Diameter translation code from waaad project. Not tested yet. Gateway plugins to come later.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
304 }
a857024cb48b Ported the RADIUS/Diameter translation code from waaad project. Not tested yet. Gateway plugins to come later.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
305
a857024cb48b Ported the RADIUS/Diameter translation code from waaad project. Not tested yet. Gateway plugins to come later.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
306 }
a857024cb48b Ported the RADIUS/Diameter translation code from waaad project. Not tested yet. Gateway plugins to come later.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
307
a857024cb48b Ported the RADIUS/Diameter translation code from waaad project. Not tested yet. Gateway plugins to come later.
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
308
"Welcome to our mercurial repository"