1 /* 2 * $Id: sip_parser.h 1486 2009-08-29 14:40:38Z rco $ 3 * 4 * Copyright (C) 2007 Raphael Coeffic 5 * 6 * This file is part of SEMS, a free SIP media server. 7 * 8 * SEMS is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. This program is released under 12 * the GPL with the additional exemption that compiling, linking, 13 * and/or using OpenSSL is allowed. 14 * 15 * For a license to use the sems software under conditions 16 * other than those described here, or to purchase support for this 17 * software, please contact iptel.org by e-mail at the following addresses: 18 * info@iptel.org 19 * 20 * SEMS is distributed in the hope that it will be useful, 21 * but WITHOUT ANY WARRANTY; without even the implied warranty of 22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 23 * GNU General Public License for more details. 24 * 25 * You should have received a copy of the GNU General Public License 26 * along with this program; if not, write to the Free Software 27 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 28 */ 29 30 #ifndef _SIP_PARSER_H 31 #define _SIP_PARSER_H 32 33 #include "cstring.h" 34 #include "parse_uri.h" 35 #include "resolver.h" 36 37 #include <list> 38 using std::list; 39 40 #include <netinet/in.h> 41 #include <sys/socket.h> 42 43 struct sip_request; 44 struct sip_reply; 45 struct sip_header; 46 struct sip_via_parm; 47 struct dns_handle; 48 class trsp_socket; 49 50 // 51 // SIP message types: 52 // 53 54 enum { 55 SIP_UNKNOWN=0, 56 SIP_REQUEST, 57 SIP_REPLY 58 }; 59 60 61 struct sip_request 62 { 63 // 64 // Request methods 65 // 66 67 enum { 68 OTHER_METHOD=0, 69 INVITE, 70 ACK, 71 PRACK, 72 OPTIONS, 73 BYE, 74 CANCEL, 75 REGISTER 76 }; 77 78 cstring method_str; 79 int method; 80 81 cstring ruri_str; 82 sip_uri ruri; 83 }; 84 85 86 struct sip_reply 87 { 88 int code; 89 cstring reason; 90 sip_replysip_reply91 sip_reply() 92 : code(0) 93 {} 94 sip_replysip_reply95 sip_reply(int code, const cstring& reason) 96 : code(code), reason(reason) 97 {} 98 }; 99 100 101 struct sip_msg 102 { 103 char* buf; 104 int len; 105 106 // Request or Reply? 107 int type; 108 109 union { 110 sip_request* request; 111 sip_reply* reply; 112 }u; 113 114 list<sip_header*> hdrs; 115 116 sip_header* to; 117 sip_header* from; 118 119 sip_header* cseq; 120 sip_header* rack; 121 122 list<sip_header*> vias; 123 sip_header* via1; 124 sip_via_parm* via_p1; 125 126 sip_header* callid; 127 128 list<sip_header*> contacts; 129 list<sip_header*> route; 130 list<sip_header*> record_route; 131 sip_header* content_type; 132 sip_header* content_length; 133 cstring body; 134 135 sockaddr_storage local_ip; 136 trsp_socket* local_socket; 137 138 sockaddr_storage remote_ip; 139 140 sip_msg(); 141 sip_msg(const char* msg_buf, int msg_len); 142 ~sip_msg(); 143 144 void copy_msg_buf(const char* msg_buf, int msg_len); 145 146 int send(unsigned flags); 147 148 /** 149 * Releases pointers otherwise deleted by the destructor 150 * This is useful to abandon the memory pointed at if this 151 * message is a copy of another which do own the memory. 152 */ 153 void release(); 154 }; 155 156 int parse_method(int* method, const char* beg, int len); 157 int parse_headers(sip_msg* msg, char** c, char* end); 158 int parse_sip_msg(sip_msg* msg, char*& err_msg); 159 160 #define get_contact(msg) (msg->contacts.empty() ? NULL : (*msg->contacts.begin())) 161 162 #endif 163 164 /** EMACS ** 165 * Local variables: 166 * mode: c++ 167 * c-basic-offset: 4 168 * End: 169 */ 170