3 Copyright (C) 2010 Simon MORLAT (simon.morlat@free.fr)
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License
7 as published by the Free Software Foundation; either version 2
8 of the License, or (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 This header files defines the Signaling Abstraction Layer.
22 The purpose of this layer is too allow experiment different call signaling
23 protocols and implementations under linphone, for example SIP, JINGLE...
27 const char* sal_transport_to_string(SalTransport transport) {
29 case SalTransportUDP:return "udp";
30 case SalTransportTCP: return "tcp";
31 case SalTransportTLS:return "tls";
32 case SalTransportDTLS:return "dtls";
34 ms_fatal("Unexpected transport [%i]",transport);
40 SalTransport sal_transport_parse(const char* param) {
41 if (strcasecmp("udp",param)==0) return SalTransportUDP;
42 if (strcasecmp("tcp",param)==0) return SalTransportTCP;
43 if (strcasecmp("tls",param)==0) return SalTransportTLS;
44 if (strcasecmp("dtls",param)==0) return SalTransportDTLS;
45 ms_error("Unknown transport type[%s], returning UDP", param);
46 return SalTransportUDP;
49 SalMediaDescription *sal_media_description_new(){
50 SalMediaDescription *md=ms_new0(SalMediaDescription,1);
55 static void sal_media_description_destroy(SalMediaDescription *md){
57 for(i=0;i<SAL_MEDIA_DESCRIPTION_MAX_STREAMS;i++){
58 ms_list_for_each(md->streams[i].payloads,(void (*)(void *))payload_type_destroy);
59 ms_list_free(md->streams[i].payloads);
60 md->streams[i].payloads=NULL;
65 void sal_media_description_ref(SalMediaDescription *md){
69 void sal_media_description_unref(SalMediaDescription *md){
72 sal_media_description_destroy (md);
76 SalStreamDescription *sal_media_description_find_stream(SalMediaDescription *md,
77 SalMediaProto proto, SalStreamType type){
79 for(i=0;i<md->nstreams;++i){
80 SalStreamDescription *ss=&md->streams[i];
81 if (ss->proto==proto && ss->type==type) return ss;
86 bool_t sal_media_description_empty(const SalMediaDescription *md){
88 for(i=0;i<md->nstreams;++i){
89 const SalStreamDescription *ss=&md->streams[i];
90 if (ss->port!=0) return FALSE;
95 void sal_media_description_set_dir(SalMediaDescription *md, SalStreamDir stream_dir){
97 for(i=0;i<md->nstreams;++i){
98 SalStreamDescription *ss=&md->streams[i];
104 static bool_t is_null_address(const char *addr){
105 return strcmp(addr,"0.0.0.0")==0 || strcmp(addr,"::0")==0;
108 /*check for the presence of at least one stream with requested direction */
109 static bool_t has_dir(const SalMediaDescription *md, SalStreamDir stream_dir){
112 /* we are looking for at least one stream with requested direction, inactive streams are ignored*/
113 for(i=0;i<md->nstreams;++i){
114 const SalStreamDescription *ss=&md->streams[i];
115 if (ss->dir==stream_dir) return TRUE;
116 /*compatibility check for phones that only used the null address and no attributes */
117 if (ss->dir==SalStreamSendRecv && stream_dir==SalStreamSendOnly && (is_null_address(md->addr) || is_null_address(ss->addr)))
123 bool_t sal_media_description_has_dir(const SalMediaDescription *md, SalStreamDir stream_dir){
124 if (stream_dir==SalStreamRecvOnly){
125 if (has_dir(md,SalStreamSendOnly) || has_dir(md,SalStreamSendRecv)) return FALSE;
127 }else if (stream_dir==SalStreamSendOnly){
128 if (has_dir(md,SalStreamRecvOnly) || has_dir(md,SalStreamSendRecv)) return FALSE;
130 }else if (stream_dir==SalStreamSendRecv){
131 return has_dir(md,SalStreamSendRecv);
133 /*SalStreamInactive*/
134 if (has_dir(md,SalStreamSendOnly) || has_dir(md,SalStreamSendRecv) || has_dir(md,SalStreamRecvOnly))
142 static bool_t fmtp_equals(const char *p1, const char *p2){
143 if (p1 && p2 && strcmp(p1,p2)==0) return TRUE;
144 if (p1==NULL && p2==NULL) return TRUE;
149 static bool_t payload_type_equals(const PayloadType *p1, const PayloadType *p2){
150 if (p1->type!=p2->type) return FALSE;
151 if (strcmp(p1->mime_type,p2->mime_type)!=0) return FALSE;
152 if (p1->clock_rate!=p2->clock_rate) return FALSE;
153 if (p1->channels!=p2->channels) return FALSE;
155 Do not compare fmtp right now: they are modified internally when the call is started
158 if (!fmtp_equals(p1->recv_fmtp,p2->recv_fmtp) ||
159 !fmtp_equals(p1->send_fmtp,p2->send_fmtp))
165 static bool_t payload_list_equals(const MSList *l1, const MSList *l2){
166 const MSList *e1,*e2;
167 for(e1=l1,e2=l2;e1!=NULL && e2!=NULL; e1=e1->next,e2=e2->next){
168 PayloadType *p1=(PayloadType*)e1->data;
169 PayloadType *p2=(PayloadType*)e2->data;
170 if (!payload_type_equals(p1,p2))
173 if (e1!=NULL || e2!=NULL){
174 /*means one list is longer than the other*/
180 bool_t sal_stream_description_equals(const SalStreamDescription *sd1, const SalStreamDescription *sd2){
181 if (sd1->proto!=sd2->proto) return FALSE;
182 if (sd1->type!=sd2->type) return FALSE;
183 if (strcmp(sd1->addr,sd2->addr)!=0) return FALSE;
184 if (sd1->port!=sd2->port) return FALSE;
185 if (!payload_list_equals(sd1->payloads,sd2->payloads)) return FALSE;
186 if (sd1->bandwidth!=sd2->bandwidth) return FALSE;
187 if (sd1->ptime!=sd2->ptime) return FALSE;
188 /* compare candidates: TODO */
189 if (sd1->dir!=sd2->dir) return FALSE;
193 bool_t sal_media_description_equals(const SalMediaDescription *md1, const SalMediaDescription *md2){
196 if (strcmp(md1->addr,md2->addr)!=0) return FALSE;
197 if (md1->nstreams!=md2->nstreams) return FALSE;
198 if (md1->bandwidth!=md2->bandwidth) return FALSE;
199 for(i=0;i<md1->nstreams;++i){
200 if (!sal_stream_description_equals(&md1->streams[i],&md2->streams[i]))
206 static void assign_string(char **str, const char *arg){
215 void sal_op_set_contact(SalOp *op, const char *contact){
216 assign_string(&((SalOpBase*)op)->contact,contact);
219 void sal_op_set_route(SalOp *op, const char *route){
220 assign_string(&((SalOpBase*)op)->route,route);
223 void sal_op_set_from(SalOp *op, const char *from){
224 assign_string(&((SalOpBase*)op)->from,from);
227 void sal_op_set_to(SalOp *op, const char *to){
228 assign_string(&((SalOpBase*)op)->to,to);
231 void sal_op_set_user_pointer(SalOp *op, void *up){
232 ((SalOpBase*)op)->user_pointer=up;
235 Sal *sal_op_get_sal(const SalOp *op){
236 return ((SalOpBase*)op)->root;
239 const char *sal_op_get_from(const SalOp *op){
240 return ((SalOpBase*)op)->from;
243 const char *sal_op_get_to(const SalOp *op){
244 return ((SalOpBase*)op)->to;
247 const char *sal_op_get_contact(const SalOp *op){
248 return ((SalOpBase*)op)->contact;
251 const char *sal_op_get_route(const SalOp *op){
252 return ((SalOpBase*)op)->route;
255 const char *sal_op_get_remote_ua(const SalOp *op){
256 return ((SalOpBase*)op)->remote_ua;
259 void *sal_op_get_user_pointer(const SalOp *op){
260 return ((SalOpBase*)op)->user_pointer;
263 const char *sal_op_get_proxy(const SalOp *op){
264 return ((SalOpBase*)op)->route;
267 const char *sal_op_get_network_origin(const SalOp *op){
268 return ((SalOpBase*)op)->origin;
271 void __sal_op_init(SalOp *b, Sal *sal){
272 memset(b,0,sizeof(SalOpBase));
273 ((SalOpBase*)b)->root=sal;
276 void __sal_op_set_network_origin(SalOp *op, const char *origin){
277 assign_string(&((SalOpBase*)op)->origin,origin);
281 void __sal_op_free(SalOp *op){
282 SalOpBase *b=(SalOpBase *)op;
304 ms_free(b->remote_ua);
308 sal_media_description_unref(b->local_media);
310 sal_media_description_unref(b->remote_media);
314 SalAuthInfo* sal_auth_info_new() {
315 return ms_new0(SalAuthInfo,1);
318 SalAuthInfo* sal_auth_info_clone(const SalAuthInfo* auth_info) {
319 SalAuthInfo* new_auth_info=sal_auth_info_new();
320 new_auth_info->username=auth_info->username?ms_strdup(auth_info->username):NULL;
321 new_auth_info->userid=auth_info->userid?ms_strdup(auth_info->userid):NULL;
322 new_auth_info->realm=auth_info->realm?ms_strdup(auth_info->realm):NULL;
323 new_auth_info->password=auth_info->password?ms_strdup(auth_info->password):NULL;
324 return new_auth_info;
327 void sal_auth_info_delete(const SalAuthInfo* auth_info) {
328 if (auth_info->username) ms_free(auth_info->username);
329 if (auth_info->userid) ms_free(auth_info->userid);
330 if (auth_info->realm) ms_free(auth_info->realm);
331 if (auth_info->password) ms_free(auth_info->password);
332 ms_free((void*)auth_info);