1 /*
2   eXosip - This is the eXtended osip library.
3   Copyright (C) 2001-2020 Aymeric MOIZARD amoizard@antisip.com
4 
5   eXosip is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 2 of the License, or
8   (at your option) any later version.
9 
10   eXosip 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.
14 
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
18 
19   In addition, as a special exception, the copyright holders give
20   permission to link the code of portions of this program with the
21   OpenSSL library under certain conditions as described in each
22   individual source file, and distribute linked combinations
23   including the two.
24   You must obey the GNU General Public License in all respects
25   for all of the code used other than OpenSSL.  If you modify
26   file(s) with this exception, you may extend this exception to your
27   version of the file(s), but you are not obligated to do so.  If you
28   do not wish to do so, delete this exception statement from your
29   version.  If you delete this exception statement from all source
30   files in the program, then also delete it here.
31 */
32 
33 #include "eXosip2.h"
34 
_eXosip_call_find(struct eXosip_t * excontext,int cid,eXosip_call_t ** jc)35 int _eXosip_call_find(struct eXosip_t *excontext, int cid, eXosip_call_t **jc) {
36   if (cid <= 0)
37     return OSIP_BADPARAMETER;
38 
39   for (*jc = excontext->j_calls; *jc != NULL; *jc = (*jc)->next) {
40     if ((*jc)->c_id == cid) {
41       return OSIP_SUCCESS;
42     }
43   }
44 
45   *jc = NULL;
46   return OSIP_NOTFOUND;
47 }
48 
_eXosip_call_renew_expire_time(eXosip_call_t * jc)49 void _eXosip_call_renew_expire_time(eXosip_call_t *jc) {
50   time_t now = osip_getsystemtime(NULL);
51 
52   jc->expire_time = now + 180;
53 }
54 
_eXosip_call_init(struct eXosip_t * excontext,eXosip_call_t ** jc)55 int _eXosip_call_init(struct eXosip_t *excontext, eXosip_call_t **jc) {
56   *jc = (eXosip_call_t *) osip_malloc(sizeof(eXosip_call_t));
57 
58   if (*jc == NULL)
59     return OSIP_NOMEM;
60 
61   memset(*jc, 0, sizeof(eXosip_call_t));
62 
63   (*jc)->c_id = -1; /* make sure the _eXosip_update will assign a valid id to the call */
64 
65 #ifndef MINISIZE
66   {
67     struct timeval now;
68 
69     excontext->statistics.allocated_calls++;
70     osip_gettimeofday(&now, NULL);
71     _eXosip_counters_update(&excontext->average_calls, 1, &now);
72   }
73 #endif
74   return OSIP_SUCCESS;
75 }
76 
_eXosip_call_remove_dialog_reference_in_call(eXosip_call_t * jc,eXosip_dialog_t * jd)77 void _eXosip_call_remove_dialog_reference_in_call(eXosip_call_t *jc, eXosip_dialog_t *jd) {
78   eXosip_dialog_t *_jd;
79 
80   if (jc == NULL)
81     return;
82 
83   if (jd == NULL)
84     return;
85 
86   for (_jd = jc->c_dialogs; _jd != NULL; _jd = _jd->next) {
87     if (jd == _jd)
88       break;
89   }
90 
91   if (_jd == NULL) {
92     /* dialog not found??? */
93   }
94 
95   _jd = (eXosip_dialog_t *) osip_transaction_get_reserved3(jc->c_inc_tr);
96 
97   if (_jd != NULL && _jd == jd)
98     osip_transaction_set_reserved3(jc->c_inc_tr, NULL);
99 
100   _jd = (eXosip_dialog_t *) osip_transaction_get_reserved3(jc->c_out_tr);
101 
102   if (_jd != NULL && _jd == jd)
103     osip_transaction_set_reserved3(jc->c_out_tr, NULL);
104 
105   _jd = (eXosip_dialog_t *) osip_transaction_get_reserved3(jc->c_cancel_tr);
106 
107   if (_jd != NULL && _jd == jd)
108     osip_transaction_set_reserved3(jc->c_cancel_tr, NULL);
109 }
110 
_eXosip_call_free(struct eXosip_t * excontext,eXosip_call_t * jc)111 void _eXosip_call_free(struct eXosip_t *excontext, eXosip_call_t *jc) {
112   eXosip_dialog_t *jd;
113 
114   if (jc->c_inc_tr != NULL && jc->c_inc_tr->orig_request != NULL && jc->c_inc_tr->orig_request->call_id != NULL && jc->c_inc_tr->orig_request->call_id->number != NULL)
115     _eXosip_delete_nonce(excontext, jc->c_inc_tr->orig_request->call_id->number);
116 
117   else if (jc->c_out_tr != NULL && jc->c_out_tr->orig_request != NULL && jc->c_out_tr->orig_request->call_id != NULL && jc->c_out_tr->orig_request->call_id->number != NULL)
118     _eXosip_delete_nonce(excontext, jc->c_out_tr->orig_request->call_id->number);
119 
120   for (jd = jc->c_dialogs; jd != NULL; jd = jc->c_dialogs) {
121     REMOVE_ELEMENT(jc->c_dialogs, jd);
122     _eXosip_dialog_free(excontext, jd);
123   }
124 
125   _eXosip_delete_reserved(jc->c_inc_tr);
126   _eXosip_delete_reserved(jc->c_out_tr);
127   _eXosip_delete_reserved(jc->c_cancel_tr);
128 
129   if (jc->c_inc_tr != NULL)
130     osip_list_add(&excontext->j_transactions, jc->c_inc_tr, 0);
131 
132   if (jc->c_out_tr != NULL)
133     osip_list_add(&excontext->j_transactions, jc->c_out_tr, 0);
134 
135   if (jc->c_cancel_tr != NULL)
136     osip_list_add(&excontext->j_transactions, jc->c_cancel_tr, 0);
137 
138   osip_free(jc);
139 #ifndef MINISIZE
140   excontext->statistics.allocated_calls--;
141 #endif
142 }
143