Mercurial > hg > freeDiameter

annotate extensions/rt_redirect/redir_out.c @ 1259:82280e745a89

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Remove whitespace at end of line.
author Thomas Klausner <tk@giga.or.at>
date Mon, 24 Mar 2014 13:13:38 +0100
parents 581bbd48524a
children 4f6f61e67599
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@freediameter.net> *
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4 * *
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5 * Copyright (c) 2013, 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 #include "rt_redir.h"
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37
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38
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39 /* Find the data pertinent to a type in the input data */
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40 static int get_data_to_match(enum redir_h_u type, struct msg *msg, union matchdata * data, int * nodata)
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41 {
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42 TRACE_ENTRY("%d %p %p %p", type, msg, data, nodata);
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44 /* Initialize the data area */
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45 memset(data, 0, sizeof(union matchdata));
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46 *nodata = 0;
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47
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48 /* Now, find the appropriate information, depending on type */
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49 switch (type) {
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50 case DONT_CACHE:
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51 data->message.msg = msg;
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52 break;
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53
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54 case ALL_SESSION:
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55 {
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56 /* Get the sid from the message */
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57 struct session * sess;
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58 CHECK_FCT( fd_msg_sess_get(fd_g_config->cnf_dict, msg, &sess, NULL) );
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59 if (!sess) {
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60 TRACE_DEBUG(ANNOYING, "Message %p cannot match any ALL_SESSION rule since it does not have a Session-Id", msg);
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61 *nodata = 1;
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62 } else {
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63 CHECK_FCT( fd_sess_getsid(sess, &data->session.s, &data->session.l) );
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64 }
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65 }
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66 break;
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67
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68 case ALL_REALM:
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69 {
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70 /* Search the Destination-Realm in the message */
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71 struct avp * dr;
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72 CHECK_FCT( fd_msg_search_avp(msg, redir_dict_dr, &dr) );
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73 if (!dr) {
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74 TRACE_DEBUG(ANNOYING, "Message %p cannot match any ALL_REALM rule since it does not have a Destination-Realm", msg);
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75 *nodata = 1;
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76 } else {
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77 struct avp_hdr * ahdr;
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78 CHECK_FCT( fd_msg_avp_hdr( dr, &ahdr ) );
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79 data->realm.s = ahdr->avp_value->os.data;
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80 data->realm.l = ahdr->avp_value->os.len;
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81 }
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82 }
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83 break;
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84
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85 case REALM_AND_APPLICATION:
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86 {
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87 /* Search the Destination-Realm of the message */
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88 struct avp * dr;
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89 CHECK_FCT( fd_msg_search_avp(msg, redir_dict_dr, &dr) );
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90 if (!dr) {
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91 TRACE_DEBUG(ANNOYING, "Message %p cannot match any REALM_AND_APPLICATION rule since it does not have a Destination-Realm", msg);
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92 *nodata = 1;
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93 } else {
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94 struct avp_hdr * ahdr;
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95 CHECK_FCT( fd_msg_avp_hdr( dr, &ahdr ) );
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96 data->realm_app.s = ahdr->avp_value->os.data;
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97 data->realm_app.l = ahdr->avp_value->os.len;
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98
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99 /* and then the application */
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100 {
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101 struct msg_hdr * hdr;
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102 CHECK_FCT( fd_msg_hdr(msg, &hdr) );
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103 data->realm_app.a = hdr->msg_appl;
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104 /* Should we forbid application 0? */
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105 }
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106 }
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107 }
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108 break;
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109
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
110 case ALL_APPLICATION:
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
111 {
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
112 /* Retrieve the application from the message */
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
113 struct msg_hdr * hdr;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
114 CHECK_FCT( fd_msg_hdr(msg, &hdr) );
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
115 data->app.a = hdr->msg_appl;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
116 }
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
117 break;
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118
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parents:
diff changeset
119 case ALL_HOST:
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parents:
diff changeset
120 /* This is more complex, we need to match with all candidates in each rule, it'll be done later */
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
121 break;
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122
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diff changeset
123 case ALL_USER:
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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124 {
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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diff changeset
125 /* Search the User-Name of the message */
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
126 struct avp * un;
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diff changeset
127 CHECK_FCT( fd_msg_search_avp(msg, redir_dict_un, &un) );
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128 if (!un) {
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diff changeset
129 TRACE_DEBUG(ANNOYING, "Message %p cannot match any ALL_USER rule since it does not have a User-Name", msg);
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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diff changeset
130 *nodata = 1;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
131 } else {
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
132 struct avp_hdr * ahdr;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
133 CHECK_FCT( fd_msg_avp_hdr( un, &ahdr ) );
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
134 data->user.s = ahdr->avp_value->os.data;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
135 data->user.l = ahdr->avp_value->os.len;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
136 }
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
137 }
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
138 break;
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139
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
140 default:
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
141 ASSERT(0);
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
142 return EINVAL;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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diff changeset
143 }
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
144
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
145 return 0;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
146 }
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
147
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
148
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
149 /* Apply the score from a rule if the candidate list is appropriate */
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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diff changeset
150 static int apply_rule(struct redir_entry * e, struct msg * msg, struct fd_list * candidates)
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
151 {
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
152 struct fd_list * lic, *lirh;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
153 struct rtd_candidate * c_oh = NULL;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
154 int cmp;
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155
717
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parents:
diff changeset
156 TRACE_ENTRY("%p %p %p", e, msg, candidates);
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
157 ASSERT( e && msg && candidates );
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158
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
159 if (FD_IS_LIST_EMPTY(candidates)) {
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
160 TRACE_DEBUG(ANNOYING, "Skip Redirect rule since candidates list is empty");
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
161 return 0;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
162 }
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diff changeset
163
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
164 /* Now search common peers between e->target_peers_list and candidates */
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
165 TRACE_DEBUG(ANNOYING, "Message %p matches a Redirect rule (t:%d, @%p), processing candidates list", msg, e->type, e);
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166
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
167 /* First, decrease the score of the host that we received the previous Redirect from, in case it is in the list */
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
168 for (lic = candidates->next; lic != candidates; lic = lic->next) {
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
169 struct rtd_candidate * cand = (struct rtd_candidate *) lic;
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170
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
171 /* Special case: ALL_HOST rules: we decrease the score of the Origin-Host if present */
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
172 if (e->type == ALL_HOST) {
738
d666051658bd Fix broken 'almostcasecmp' logic
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 717
diff changeset
173 cmp = fd_os_almostcasesrch(cand->diamid, cand->diamidlen, e->data.host.s, e->data.host.l, NULL);
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
174 if (!cmp) {
1027
0117a7746b21 Fix a number of errors and warnings introduced/highlighted by recent commits
Sebastien Decugis <sdecugis@freediameter.net>
parents: 740
diff changeset
175 TRACE_DEBUG(FULL, "Redirect msg %p: peer '%.*s' += %d (previous ALL_HOST Redirect originated from this peer)", msg, (int)cand->diamidlen, cand->diamid, FD_SCORE_SENT_REDIRECT);
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
176 cand->score += FD_SCORE_SENT_REDIRECT;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
177 c_oh = cand;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
178 continue;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
179 }
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
180 }
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diff changeset
181
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
182 cmp = fd_os_cmp(cand->diamid, cand->diamidlen, e->from.s, e->from.l);
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
183 if (!cmp) {
1027
0117a7746b21 Fix a number of errors and warnings introduced/highlighted by recent commits
Sebastien Decugis <sdecugis@freediameter.net>
parents: 740
diff changeset
184 TRACE_DEBUG(FULL, "Redirect msg %p: peer '%.*s' += %d (previous Redirect received from this peer)", msg, (int)cand->diamidlen, cand->diamid, FD_SCORE_SENT_REDIRECT);
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
185 cand->score += FD_SCORE_SENT_REDIRECT;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
186 }
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diff changeset
187
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
188 }
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diff changeset
189
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
190 if ((e->type == ALL_HOST) && (c_oh == NULL)) {
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
191 /* The rule does not apply, we're done */
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
192 return 0;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
193 }
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diff changeset
194
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
195 /* for each candidate, if it is found in the target_peers list, we add the rule's score to this candidate */
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
196 for (lic = candidates->next; lic != candidates; lic = lic->next) {
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
diff changeset
197 /* the candidates list is not guaranteed to be ordered at this time, so we cannot avoid the two imbricated loops */
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
198 struct rtd_candidate * cand = (struct rtd_candidate *) lic;
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diff changeset
199
738
d666051658bd Fix broken 'almostcasecmp' logic
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 717
diff changeset
200 /* Is this candidate in the "Redirect-Host" list ? We must search caseinsentive here. */
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
201 for (lirh = e->target_peers_list.next; lirh != &e->target_peers_list; lirh = lirh->next) {
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
202 struct redir_host * host = lirh->o;
738
d666051658bd Fix broken 'almostcasecmp' logic
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 717
diff changeset
203 int cont;
1259
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Thomas Klausner <tk@giga.or.at>
parents: 1216
diff changeset
204
738
d666051658bd Fix broken 'almostcasecmp' logic
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 717
diff changeset
205 cmp = fd_os_almostcasesrch( cand->diamid, cand->diamidlen, host->id, host->len, &cont );
1259
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Thomas Klausner <tk@giga.or.at>
parents: 1216
diff changeset
206
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
207 if (cmp == 0) {
1027
0117a7746b21 Fix a number of errors and warnings introduced/highlighted by recent commits
Sebastien Decugis <sdecugis@freediameter.net>
parents: 740
diff changeset
208 TRACE_DEBUG(FULL, "Redirect msg %p: peer '%.*s' += %d (rule t:%d @%p)", msg, (int)cand->diamidlen, cand->diamid, redirects_usages[e->type].score, e->type, e);
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
209 cand->score += redirects_usages[e->type].score;
738
d666051658bd Fix broken 'almostcasecmp' logic
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 717
diff changeset
210 break;
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
211 }
738
d666051658bd Fix broken 'almostcasecmp' logic
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 717
diff changeset
212 if (!cont)
d666051658bd Fix broken 'almostcasecmp' logic
Sebastien Decugis <sdecugis@nict.go.jp>
parents: 717
diff changeset
213 break;
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
214 }
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
215 }
1259
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parents: 1216
diff changeset
216
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
217 return 0;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
218 }
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
diff changeset
219
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
Sebastien Decugis <sdecugis@nict.go.jp>
parents:
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220
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221 /* OUT callback */
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222 int redir_out_cb(void * cbdata, struct msg ** pmsg, struct fd_list * candidates)
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223 {
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224 int i, ret = 0;
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225 struct msg * msg = *pmsg;
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226
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227 TRACE_ENTRY("%p %p %p", cbdata, msg, candidates);
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228
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229 for (i = 0; i <= H_U_MAX; i++) {
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230 /* Lock the line. We write lock in case of DONT_CACHE so we can directly unlink the entry. read in other cases is sufficient */
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231 if (i == DONT_CACHE) {
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232 CHECK_POSIX( pthread_rwlock_wrlock( &redirects_usages[i].lock ) );
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233 } else {
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234 CHECK_POSIX( pthread_rwlock_rdlock( &redirects_usages[i].lock ) );
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235 }
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236
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237 if (!FD_IS_LIST_EMPTY(&redirects_usages[i].sentinel)) {
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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238 union matchdata data;
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239 int nodata; /* The message does not allow to apply this rule, skip */
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240
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241 /* Retrieve the data that may match in the message */
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242 CHECK_FCT_DO( ret = get_data_to_match(i, msg, &data, &nodata), goto out );
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243
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244 /* If this message may match some of our rules */
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245 if (!nodata) {
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246 struct fd_list * li;
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247 /* Attempt each rule we have stored */
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248 for (li = redirects_usages[i].sentinel.next; li != &redirects_usages[i].sentinel; li = li->next) {
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249 struct redir_entry * e = li->o;
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250
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251 /* Does it match ? */
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252 if (i != ALL_HOST) { /* this one is an exception, we handle it separately */
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253 int cmp = redir_entry_cmp_key[i](&data, &e->data);
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254 if (cmp > 0)
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255 continue;
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256 if (cmp < 0)
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257 break;
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258 }
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259
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260 /* This rule matches (or we are in ALL_HOST), apply */
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261 CHECK_FCT_DO( ret = apply_rule(e, msg, candidates), goto out );
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262
717
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263 /* If this was a DONT_CACHE rule, we unlink it, so that it will not be used again */
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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264 if (i == DONT_CACHE) {
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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265 li=li->prev;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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266 fd_list_unlink( li->next );
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267 /* We cannot delete here without taking the mutex, which would mean we have first to release the lock...
717
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268 just let expiry garbage collet the rule */
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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269 }
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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270 }
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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271 }
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272
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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273 }
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274 out:
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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diff changeset
275 CHECK_POSIX( pthread_rwlock_unlock( &redirects_usages[i].lock ) );
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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diff changeset
276 if (ret)
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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277 return ret;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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278 }
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279
717
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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diff changeset
280 return 0;
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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281 }
571b3abaa5df Support for Diameter Redirects through rt_redirect.fdx extension (EXPERIMENTAL)
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parents:
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282
"Welcome to our mercurial repository"