1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/*
* $Id$
*
* Copyright (C) 2006 iptelorg GmbH
*
* This file is part of ser, a free SIP server.
*
* ser is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* For a license to use the ser software under conditions
* other than those described here, or to purchase support for this
* software, please contact iptel.org by e-mail at the following addresses:
* info@iptel.org
*
* ser is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* non-sip callbacks, called whenever a message with protocol != SIP/2.0
* is received (the message must have at least a sip like first line or
* else they will be dropped before this callbacks are called
*/
/*
* History:
* --------
* 2006-11-29 created by andrei
*/
/*!
* \file
* \brief SIP-router core ::
* \ingroup core
* Module: \ref core
*/
#include "nonsip_hooks.h"
#include "mem/mem.h"
static struct nonsip_hook* nonsip_hooks;
static unsigned int nonsip_max_hooks=MAX_NONSIP_HOOKS;
static int last_hook_idx=0;
int init_nonsip_hooks()
{
nonsip_hooks=pkg_malloc(nonsip_max_hooks*
sizeof(struct nonsip_hook));
if (nonsip_hooks==0){
goto error;
}
memset(nonsip_hooks, 0, nonsip_max_hooks*sizeof(struct nonsip_hook));
return 0;
error:
LM_ERR("memory allocation failure\n");
return -1;
}
void destroy_nonsip_hooks()
{
int r;
if (nonsip_hooks){
for (r=0; r<last_hook_idx; r++){
if (nonsip_hooks[r].destroy)
nonsip_hooks[r].destroy();
}
pkg_free(nonsip_hooks);
nonsip_hooks=0;
}
}
/* allocates a new hook
* returns 0 on success and -1 on error */
int register_nonsip_msg_hook(struct nonsip_hook *h)
{
struct nonsip_hook* tmp;
int new_max_hooks;
if (nonsip_max_hooks==0)
goto error;
if (last_hook_idx >= nonsip_max_hooks){
new_max_hooks=2*nonsip_max_hooks;
tmp=pkg_realloc(nonsip_hooks,
new_max_hooks*sizeof(struct nonsip_hook));
if (tmp==0){
goto error;
}
nonsip_hooks=tmp;
/* init the new chunk */
memset(&nonsip_hooks[last_hook_idx+1], 0,
(new_max_hooks-nonsip_max_hooks-1)*
sizeof(struct nonsip_hook));
nonsip_max_hooks=new_max_hooks;
}
nonsip_hooks[last_hook_idx]=*h;
last_hook_idx++;
return 0;
error:
return -1;
}
int nonsip_msg_run_hooks(struct sip_msg* msg)
{
int r;
int ret;
ret=NONSIP_MSG_DROP; /* default, if no hook installed, drop */
for (r=0; r<last_hook_idx; r++){
ret=nonsip_hooks[r].on_nonsip_req(msg);
if (ret!=NONSIP_MSG_PASS) break;
}
return ret;
}
|
