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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/*
This file is part of GNUnet.
(C) 2009, 2010 Christian Grothoff (and other contributing authors)
GNUnet 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 3, or (at your
option) any later version.
GNUnet 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 GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/*
* Code in this file is originally based on the miniupnp library.
* Copyright (c) 2005-2008, Thomas BERNARD. All rights reserved.
*
* Original licence:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @file nat/upnp-igd-parse.h
* @brief Parser for XML descriptions of UPnP Internet Gateway Devices
*
* @author Milan Bouchet-Valat
*/
#include <stdio.h>
#include <string.h>
#include "platform.h"
#include "gnunet_util_lib.h"
#include "upnp-minixml.h"
#include "upnp-igd-parse.h"
/**
* Start element handler: update nesting level counter
* and copy element name.
*/
static void
start_elt (void *d, const char *name, int l)
{
struct UPNP_IGD_Data_ *datas = (struct UPNP_IGD_Data_ *) d;
memcpy (datas->cur_elt_name, name, l);
datas->cur_elt_name[l] = '\0';
datas->level++;
if ((l == 7) && !memcmp (name, "service", l))
{
datas->control_url_tmp[0] = '\0';
datas->event_sub_url_tmp[0] = '\0';
datas->scpd_url_tmp[0] = '\0';
datas->service_type_tmp[0] = '\0';
}
}
/**
* End element handler: update nesting level counter
* and update parser state if service element is parsed.
*/
static void
end_elt (void *d, const char *name, int l)
{
struct UPNP_IGD_Data_ *datas = (struct UPNP_IGD_Data_ *) d;
datas->level--;
if ((l == 7) && !memcmp (name, "service", l))
{
if (0 == strcmp (datas->service_type_tmp,
"urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1"))
{
memcpy (datas->control_url_CIF, datas->control_url_tmp,
MINIUPNPC_URL_MAXSIZE);
memcpy (datas->event_sub_url_CIF, datas->event_sub_url_tmp,
MINIUPNPC_URL_MAXSIZE);
memcpy (datas->scpd_url_CIF, datas->scpd_url_tmp,
MINIUPNPC_URL_MAXSIZE);
memcpy (datas->service_type_CIF, datas->service_type_tmp,
MINIUPNPC_URL_MAXSIZE);
}
else if (0 == strcmp (datas->service_type_tmp,
"urn:schemas-upnp-org:service:WANIPConnection:1")
|| 0 == strcmp (datas->service_type_tmp,
"urn:schemas-upnp-org:service:WANPPPConnection:1"))
{
memcpy (datas->control_url, datas->control_url_tmp,
MINIUPNPC_URL_MAXSIZE);
memcpy (datas->event_sub_url, datas->event_sub_url_tmp,
MINIUPNPC_URL_MAXSIZE);
memcpy (datas->scpd_url, datas->scpd_url_tmp,
MINIUPNPC_URL_MAXSIZE);
memcpy (datas->service_type, datas->service_type_tmp,
MINIUPNPC_URL_MAXSIZE);
}
}
}
/**
* Data handler: copy data depending on the current
* element name and state.
*/
static void
IGDdata (void *d, const char *data, int l)
{
struct UPNP_IGD_Data_ *datas = (struct UPNP_IGD_Data_ *) d;
char *dstmember = NULL;
if (!strcmp (datas->cur_elt_name, "URLBase"))
dstmember = datas->base_url;
else if (!strcmp (datas->cur_elt_name, "serviceType"))
dstmember = datas->service_type_tmp;
else if (!strcmp (datas->cur_elt_name, "controlURL"))
dstmember = datas->control_url_tmp;
else if (!strcmp (datas->cur_elt_name, "eventSubURL"))
dstmember = datas->event_sub_url_tmp;
else if (!strcmp (datas->cur_elt_name, "SCPDURL"))
dstmember = datas->scpd_url_tmp;
/* Copy current element name into destination member */
if (dstmember)
{
if (l >= MINIUPNPC_URL_MAXSIZE)
l = MINIUPNPC_URL_MAXSIZE - 1;
memcpy (dstmember, data, l);
dstmember[l] = '\0';
}
}
#ifdef DEBUG_UPNP
static void
print_IGD (struct UPNP_IGD_Data_ *d)
{
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "UPnP",
"base_url = %s\n", d->base_url);
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "UPnP",
"WAN Device (Common interface config) :\n"
" sevice_type = %s\n"
" control_url = %s\n"
" event_sub_url = %s\n"
" scpd_url = %s\n",
d->service_type_CIF,
d->control_url_CIF, d->event_sub_url_CIF, d->scpd_url_CIF);
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "UPnP",
"WAN Connection Device (IP or PPP Connection):\n"
" service_type = %s\n"
" control_url = %s\n"
" event_sub_url = %s\n"
" scpd_url = %s\n",
d->service_type,
d->control_url, d->event_sub_url, d->scpd_url);
}
#endif
/**
* Parse XML description of an IGD device into a UPNP_IGD_Data_ struct.
*/
void
UPNP_IGD_parse_desc_ (const char *buffer, int buf_size,
struct UPNP_IGD_Data_ *data)
{
struct UPNP_xml_parser_ parser;
parser.xml_start = buffer;
parser.xml_size = buf_size;
parser.cls = data;
parser.start_elt_func = start_elt;
parser.end_elt_func = end_elt;
parser.data_func = IGDdata;
parser.att_func = 0;
UPNP_parse_xml_ (&parser);
#ifdef DEBUG_UPNP
print_IGD (data);
#endif
}
|
