Mercurial > hg > freeDiameter
annotate libfdcore/fdcore-internal.h @ 740:4a9f08d6b6ba
Updated my mail address
| author | Sebastien Decugis <sdecugis@nict.go.jp> |
|---|---|
| date | Thu, 24 Mar 2011 15:00:18 +0900 |
| parents | 4ffbc9f1e922 |
| children | fb5e0fd923ff |
| rev | line source |
|---|---|
| 0 | 1 /********************************************************************************************************* |
| 2 * Software License Agreement (BSD License) * | |
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3 * Author: Sebastien Decugis <sdecugis@freediameter.net> * |
| 0 | 4 * * |
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5 * Copyright (c) 2011, WIDE Project and NICT * |
| 0 | 6 * All rights reserved. * |
| 7 * * | |
| 8 * Redistribution and use of this software in source and binary forms, with or without modification, are * | |
| 9 * permitted provided that the following conditions are met: * | |
| 10 * * | |
| 11 * * Redistributions of source code must retain the above * | |
| 12 * copyright notice, this list of conditions and the * | |
| 13 * following disclaimer. * | |
| 14 * * | |
| 15 * * Redistributions in binary form must reproduce the above * | |
| 16 * copyright notice, this list of conditions and the * | |
| 17 * following disclaimer in the documentation and/or other * | |
| 18 * materials provided with the distribution. * | |
| 19 * * | |
| 20 * * Neither the name of the WIDE Project or NICT nor the * | |
| 21 * names of its contributors may be used to endorse or * | |
| 22 * promote products derived from this software without * | |
| 23 * specific prior written permission of WIDE Project and * | |
| 24 * NICT. * | |
| 25 * * | |
| 26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED * | |
| 27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * | |
| 28 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * | |
| 29 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * | |
| 30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * | |
| 31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR * | |
| 32 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * | |
| 33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * | |
| 34 *********************************************************************************************************/ | |
| 35 | |
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36 /* This file contains the definitions for internal use in the freeDiameter core library */ |
| 0 | 37 |
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38 #ifndef _FDCORE_INTERNAL_H |
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39 #define _FDCORE_INTERNAL_H |
| 0 | 40 |
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41 #include <freeDiameter/freeDiameter-host.h> |
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42 #include <freeDiameter/libfdcore.h> |
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43 |
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44 #ifdef DISABLE_SCTP |
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45 #undef IPPROTO_SCTP |
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46 #define IPPROTO_SCTP (2 = 4) /* some compilation error to spot the references */ |
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47 #endif /* DISABLE_SCTP */ |
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48 |
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49 /* Timeout for establishing a connection */ |
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50 #ifndef CNX_TIMEOUT |
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51 #define CNX_TIMEOUT 10 /* in seconds */ |
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52 #endif /* CNX_TIMEOUT */ |
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53 |
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54 /* Timeout for receiving a CER after incoming connection is established */ |
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55 #ifndef INCNX_TIMEOUT |
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56 #define INCNX_TIMEOUT 20 /* in seconds */ |
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57 #endif /* INCNX_TIMEOUT */ |
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58 |
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59 /* Timeout for receiving a CEA after CER is sent */ |
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60 #ifndef CEA_TIMEOUT |
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61 #define CEA_TIMEOUT 10 /* in seconds */ |
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62 #endif /* CEA_TIMEOUT */ |
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63 |
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64 /* The timeout value to wait for answer to a DPR */ |
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65 #ifndef DPR_TIMEOUT |
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66 #define DPR_TIMEOUT 15 /* in seconds */ |
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67 #endif /* DPR_TIMEOUT */ |
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68 |
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69 /* The Vendor-Id to advertise in CER/CEA */ |
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70 #ifndef MY_VENDOR_ID |
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71 #define MY_VENDOR_ID 0 /* Reserved value to tell it must be ignored */ |
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72 #endif /* MY_VENDOR_ID */ |
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73 |
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74 |
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75 |
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76 /* Configuration */ |
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77 int fd_conf_init(); |
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78 int fd_conf_deinit(); |
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79 void fd_conf_dump(); |
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80 int fd_conf_parse(); |
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81 int fddparse(struct fd_config * conf); /* yacc generated */ |
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82 |
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83 /* Extensions */ |
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84 int fd_ext_add( char * filename, char * conffile ); |
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85 int fd_ext_load(); |
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86 void fd_ext_dump(void); |
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87 int fd_ext_term(void); |
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88 |
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89 /* Messages */ |
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90 int fd_msg_init(void); |
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91 struct dict_object * fd_dict_avp_OSI; /* Origin-State-Id */ |
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92 struct dict_object * fd_dict_cmd_CER; /* Capabilities-Exchange-Request */ |
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93 struct dict_object * fd_dict_cmd_DWR; /* Device-Watchdog-Request */ |
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94 struct dict_object * fd_dict_avp_DC; /* Disconnect-Cause */ |
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95 struct dict_object * fd_dict_cmd_DPR; /* Disconnect-Peer-Request */ |
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96 |
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97 /* Global message queues */ |
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98 extern struct fifo * fd_g_incoming; /* all messages received from other peers, except local messages (CER, ...) */ |
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99 extern struct fifo * fd_g_outgoing; /* messages to be sent to other peers on the network following routing procedure */ |
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100 extern struct fifo * fd_g_local; /* messages to be handled to local extensions */ |
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101 /* Message queues */ |
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102 int fd_queues_init(void); |
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103 int fd_queues_fini(struct fifo ** queue); |
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104 |
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105 /* Trigged events */ |
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106 int fd_event_trig_call_cb(int trigger_val); |
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107 int fd_event_trig_fini(void); |
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108 |
| 0 | 109 /* Create all the dictionary objects defined in the Diameter base RFC. */ |
| 110 int fd_dict_base_protocol(struct dictionary * dict); | |
| 111 | |
| 82 | 112 /* Routing */ |
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113 int fd_rtdisp_init(void); |
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114 int fd_rtdisp_cleanstop(void); |
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115 int fd_rtdisp_fini(void); |
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116 int fd_rtdisp_cleanup(void); |
| 82 | 117 |
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118 /* Sentinel for the sent requests list */ |
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119 struct sr_list { |
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120 struct fd_list srs; /* requests ordered by hop-by-hop id */ |
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121 struct fd_list exp; /* requests that have a timeout set, ordered by timeout */ |
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122 pthread_mutex_t mtx; /* mutex to protect these lists */ |
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123 pthread_cond_t cnd; /* cond var used by the thread that handles timeouts */ |
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124 pthread_t thr; /* the thread that handles timeouts (and calls the anscb) */ |
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125 }; |
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126 |
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127 /* Peers */ |
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128 struct fd_peer { /* The "real" definition of the peer structure */ |
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129 |
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130 /* The public data */ |
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131 struct peer_hdr p_hdr; |
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132 |
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133 /* Eye catcher, EYEC_PEER */ |
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134 int p_eyec; |
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135 #define EYEC_PEER 0x373C9336 |
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136 |
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137 /* Origin of this peer object, for debug */ |
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138 char *p_dbgorig; |
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139 |
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140 /* State of the peer, and its lock */ |
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141 enum peer_state p_state; |
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142 pthread_mutex_t p_state_mtx; |
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143 |
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144 /* Chaining in peers sublists */ |
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145 struct fd_list p_actives; /* list of peers in the STATE_OPEN state -- used by routing */ |
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146 struct fd_list p_expiry; /* list of expiring peers, ordered by their timeout value */ |
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147 struct timespec p_exp_timer; /* Timestamp where the peer will expire; updated each time activity is seen on the peer (except DW) */ |
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148 |
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149 /* Some flags influencing the peer state machine */ |
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150 struct { |
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151 unsigned pf_responder : 1; /* The peer has been created to handle incoming connection */ |
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154
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152 unsigned pf_delete : 1; /* Destroy the peer when the connection is terminated */ |
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153 unsigned pf_localterm : 1; /* If the latest DPR/DPA was initiated from this side */ |
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154 |
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155 unsigned pf_dw_pending : 1; /* A DWR message was sent and not answered yet */ |
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156 |
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157 unsigned pf_cnx_pb : 1; /* The peer was disconnected because of watchdogs; must exchange 3 watchdogs before putting back to normal */ |
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158 unsigned pf_reopen_cnt : 2; /* remaining DW to be exchanged after re-established connection */ |
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159 |
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160 } p_flags; |
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161 |
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162 /* The events queue, peer state machine thread, timer for states timeouts */ |
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163 struct fifo *p_events; /* The mutex of this FIFO list protects also the state and timer information */ |
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164 pthread_t p_psm; |
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165 struct timespec p_psm_timer; |
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166 |
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167 /* Outgoing message queue, and thread managing sending the messages */ |
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168 struct fifo *p_tosend; |
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169 pthread_t p_outthr; |
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170 |
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171 /* The next hop-by-hop id value for the link, only read & modified by p_outthr */ |
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172 uint32_t p_hbh; |
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173 |
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174 /* Sent requests (for fallback), list of struct sentreq ordered by hbh */ |
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175 struct sr_list p_sr; |
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176 |
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177 /* Data for transitional states before the peer is in OPEN state */ |
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178 struct { |
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179 struct cnxctx * p_receiver; /* Only used in case of election */ |
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180 struct msg * p_cer; /* Only used in case of election */ |
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181 |
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182 pthread_t p_ini_thr; /* Initiator thread for establishing a connection */ |
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183 struct fd_list p_connparams; /* The list of connection attempts, see p_cnx.c */ |
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184 }; |
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185 |
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186 /* connection context: socket and related information */ |
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187 struct cnxctx *p_cnxctx; |
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188 |
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189 /* Callback for peer validation after the handshake */ |
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190 int (*p_cb2)(struct peer_info *); |
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191 |
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192 /* Callback on initial connection success / failure after the peer was added */ |
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193 void (*p_cb)(struct peer_info *, void *); |
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194 void *p_cb_data; |
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195 |
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196 }; |
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197 #define CHECK_PEER( _p ) \ |
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198 (((_p) != NULL) && (((struct fd_peer *)(_p))->p_eyec == EYEC_PEER)) |
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199 |
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200 #define fd_peer_getstate(peer) fd_peer_get_state((struct peer_hdr *)(peer)) |
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201 |
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202 |
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203 /* Events codespace for struct fd_peer->p_events */ |
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204 enum { |
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205 /* Dump all info about this peer in the debug log */ |
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206 FDEVP_DUMP_ALL = 1500 |
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207 |
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208 /* request to terminate this peer : disconnect, requeue all messages */ |
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209 ,FDEVP_TERMINATE |
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210 |
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211 /* A connection object has received a message. (data contains the buffer) */ |
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212 ,FDEVP_CNX_MSG_RECV |
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213 |
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214 /* A connection object has encountered an error (disconnected). */ |
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215 ,FDEVP_CNX_ERROR |
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216 |
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217 /* Endpoints of a connection have been changed (multihomed SCTP). */ |
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218 ,FDEVP_CNX_EP_CHANGE |
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219 |
| 228 | 220 /* The connection is being shutdown (SCTP notification). */ |
| 221 ,FDEVP_CNX_SHUTDOWN | |
| 222 | |
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223 /* A new connection (with a CER) has been received */ |
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224 ,FDEVP_CNX_INCOMING |
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225 |
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226 /* A new connection has been established to the remote peer (event data is the cnxctx object) */ |
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227 ,FDEVP_CNX_ESTABLISHED |
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228 |
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229 /* A connection attempt (initiator side) has failed */ |
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230 ,FDEVP_CNX_FAILED |
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231 |
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232 /* The PSM state is expired */ |
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233 ,FDEVP_PSM_TIMEOUT |
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234 |
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235 }; |
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236 #define CHECK_PEVENT( _e ) \ |
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237 (((int)(_e) >= FDEVP_DUMP_ALL) && ((int)(_e) <= FDEVP_PSM_TIMEOUT)) |
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238 /* The following macro is actually called in p_psm.c -- another solution would be to declare it static inline */ |
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239 #define DECLARE_PEV_STR() \ |
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240 const char * fd_pev_str(int event) \ |
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241 { \ |
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242 switch (event) { \ |
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243 case_str(FDEVP_DUMP_ALL); \ |
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244 case_str(FDEVP_TERMINATE); \ |
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245 case_str(FDEVP_CNX_MSG_RECV); \ |
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246 case_str(FDEVP_CNX_ERROR); \ |
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247 case_str(FDEVP_CNX_EP_CHANGE); \ |
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248 case_str(FDEVP_CNX_INCOMING); \ |
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249 case_str(FDEVP_CNX_ESTABLISHED); \ |
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250 case_str(FDEVP_CNX_FAILED); \ |
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251 case_str(FDEVP_PSM_TIMEOUT); \ |
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252 } \ |
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253 TRACE_DEBUG(FULL, "Unknown event : %d", event); \ |
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254 return "Unknown event"; \ |
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255 } |
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256 const char * fd_pev_str(int event); |
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257 |
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258 /* The data structure for FDEVP_CNX_INCOMING event */ |
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259 struct cnx_incoming { |
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260 struct msg * cer; /* the CER message received on this connection */ |
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261 struct cnxctx * cnx; /* The connection context */ |
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262 int validate; /* The peer is new, it must be validated (by an extension) or error CEA to be sent */ |
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263 }; |
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264 |
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265 |
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266 /* Functions */ |
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267 int fd_peer_fini(); |
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268 void fd_peer_dump_list(int details); |
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269 void fd_peer_dump(struct fd_peer * peer, int details); |
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270 int fd_peer_alloc(struct fd_peer ** ptr); |
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271 int fd_peer_free(struct fd_peer ** ptr); |
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272 int fd_peer_handle_newCER( struct msg ** cer, struct cnxctx ** cnx ); |
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273 /* fd_peer_add declared in freeDiameter.h */ |
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274 int fd_peer_validate( struct fd_peer * peer ); |
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275 void fd_peer_failover_msg(struct fd_peer * peer); |
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276 |
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277 /* Peer expiry */ |
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278 int fd_p_expi_init(void); |
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279 int fd_p_expi_fini(void); |
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280 int fd_p_expi_update(struct fd_peer * peer ); |
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281 |
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282 /* Peer state machine */ |
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283 int fd_psm_start(); |
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284 int fd_psm_begin(struct fd_peer * peer ); |
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285 int fd_psm_terminate(struct fd_peer * peer, char * reason ); |
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286 void fd_psm_abord(struct fd_peer * peer ); |
| 36 | 287 void fd_psm_next_timeout(struct fd_peer * peer, int add_random, int delay); |
| 288 int fd_psm_change_state(struct fd_peer * peer, int new_state); | |
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289 void fd_psm_cleanup(struct fd_peer * peer, int terminate); |
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290 |
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291 /* Peer out */ |
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292 int fd_out_send(struct msg ** msg, struct cnxctx * cnx, struct fd_peer * peer, uint32_t flags); |
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293 int fd_out_start(struct fd_peer * peer); |
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294 int fd_out_stop(struct fd_peer * peer); |
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295 |
|
38
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296 /* Initiating connections */ |
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297 int fd_p_cnx_init(struct fd_peer * peer); |
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298 void fd_p_cnx_abort(struct fd_peer * peer, int cleanup_all); |
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299 |
|
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300 /* Peer sent requests cache */ |
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165
4679ff581d6a
Fix invalid restore of the hop-by-hop id on forwarded answers
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301 int fd_p_sr_store(struct sr_list * srlist, struct msg **req, uint32_t *hbhloc, uint32_t hbh_restore); |
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302 int fd_p_sr_fetch(struct sr_list * srlist, uint32_t hbh, struct msg **req); |
|
649
5e5d8152c229
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303 int fd_p_sr_start(struct sr_list * srlist); |
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304 int fd_p_sr_stop(struct sr_list * srlist); |
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305 void fd_p_sr_failover(struct sr_list * srlist); |
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306 |
| 36 | 307 /* Local Link messages (CER/CEA, DWR/DWA, DPR/DPA) */ |
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308 int fd_p_ce_msgrcv(struct msg ** msg, int req, struct fd_peer * peer); |
| 36 | 309 int fd_p_ce_handle_newCER(struct msg ** msg, struct fd_peer * peer, struct cnxctx ** cnx, int valid); |
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310 int fd_p_ce_handle_newcnx(struct fd_peer * peer, struct cnxctx * initiator); |
|
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311 int fd_p_ce_process_receiver(struct fd_peer * peer); |
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312 void fd_p_ce_clear_cnx(struct fd_peer * peer, struct cnxctx ** cnx_kept); |
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313 int fd_p_dw_handle(struct msg ** msg, int req, struct fd_peer * peer); |
| 36 | 314 int fd_p_dw_timeout(struct fd_peer * peer); |
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315 int fd_p_dw_reopen(struct fd_peer * peer); |
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316 int fd_p_dp_handle(struct msg ** msg, int req, struct fd_peer * peer); |
|
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317 int fd_p_dp_initiate(struct fd_peer * peer, char * reason); |
|
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318 int fd_p_dp_newdelay(struct fd_peer * peer); |
|
35
6486e97f56ae
Added test for modified message parsing
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319 |
|
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320 /* Active peers -- routing process should only ever take the read lock, the write lock is managed by PSMs */ |
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321 extern struct fd_list fd_g_activ_peers; |
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322 extern pthread_rwlock_t fd_g_activ_peers_rw; /* protect the list */ |
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323 |
|
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324 |
|
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325 /* Server sockets */ |
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326 void fd_servers_dump(); |
|
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327 int fd_servers_start(); |
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328 int fd_servers_stop(); |
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329 |
|
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330 /* Connection contexts -- there are also definitions in cnxctx.h for the relevant files */ |
|
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331 struct cnxctx * fd_cnx_serv_tcp(uint16_t port, int family, struct fd_endpoint * ep); |
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332 struct cnxctx * fd_cnx_serv_sctp(uint16_t port, struct fd_list * ep_list); |
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333 int fd_cnx_serv_listen(struct cnxctx * conn); |
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334 struct cnxctx * fd_cnx_serv_accept(struct cnxctx * serv); |
|
24
bd83ce9328ed
Cleanups and completed sctp code (not finished)
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335 struct cnxctx * fd_cnx_cli_connect_tcp(sSA * sa, socklen_t addrlen); |
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336 struct cnxctx * fd_cnx_cli_connect_sctp(int no_ip6, uint16_t port, struct fd_list * list); |
|
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337 int fd_cnx_start_clear(struct cnxctx * conn, int loop); |
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338 void fd_cnx_sethostname(struct cnxctx * conn, DiamId_t hn); |
|
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339 int fd_cnx_handshake(struct cnxctx * conn, int mode, char * priority, void * alt_creds); |
|
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340 char * fd_cnx_getid(struct cnxctx * conn); |
|
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341 int fd_cnx_getproto(struct cnxctx * conn); |
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342 int fd_cnx_getTLS(struct cnxctx * conn); |
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343 int fd_cnx_isMultichan(struct cnxctx * conn); |
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344 int fd_cnx_getcred(struct cnxctx * conn, const gnutls_datum_t **cert_list, unsigned int *cert_list_size); |
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26aafbbc1640
Cleanup all compilation warnings in base code for 32 bit arch
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345 int fd_cnx_get_local_eps(struct fd_list * list); |
|
378
41e3c2a3721c
Replaced old mechanism to discover local addresses by a call to getifaddrs, lot cleaner!
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346 int fd_cnx_getremoteeps(struct cnxctx * conn, struct fd_list * eps); |
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347 char * fd_cnx_getremoteid(struct cnxctx * conn); |
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348 int fd_cnx_receive(struct cnxctx * conn, struct timespec * timeout, unsigned char **buf, size_t * len); |
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349 int fd_cnx_recv_setaltfifo(struct cnxctx * conn, struct fifo * alt_fifo); /* send FDEVP_CNX_MSG_RECV event to the fifo list */ |
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350 int fd_cnx_send(struct cnxctx * conn, unsigned char * buf, size_t len, uint32_t flags); |
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351 void fd_cnx_destroy(struct cnxctx * conn); |
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352 |
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353 /* Flags for the fd_cnx_send function : */ |
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354 #define FD_CNX_ORDERED (1 << 0) /* All messages sent with this flag set will be delivered in the same order. No guarantee on other messages */ |
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355 |
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356 #endif /* _FDCORE_INTERNAL_H */ |