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
|
/*
* OpenConnect (SSL + DTLS) VPN client
*
* Copyright © 2008-2011 Intel Corporation.
* Copyright © 2008 Nick Andrew <nick@nick-andrew.net>
*
* Author: David Woodhouse <dwmw2@infradead.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* version 2.1, as published by the Free Software Foundation.
*
* This program 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to:
*
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <string.h>
#include "openconnect-internal.h"
int config_lookup_host(struct openconnect_info *vpninfo, const char *host)
{
int fd, i;
struct stat st;
char *xmlfile;
unsigned char sha1[SHA1_SIZE];
xmlDocPtr xml_doc;
xmlNode *xml_node, *xml_node2;
if (!vpninfo->xmlconfig)
return 0;
fd = open(vpninfo->xmlconfig, O_RDONLY);
if (fd < 0) {
perror(_("Open XML config file"));
fprintf(stderr, _("Treating host \"%s\" as a raw hostname\n"),
host);
return 0;
}
if (fstat(fd, &st)) {
perror(_("fstat XML config file"));
close(fd);
return -1;
}
xmlfile = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
if (xmlfile == MAP_FAILED) {
perror(_("mmap XML config file"));
close(fd);
return -1;
}
if (openconnect_sha1(sha1, xmlfile, st.st_size)) {
fprintf(stderr, _("Failed to SHA1 existing file\n"));
close(fd);
return -1;
}
for (i = 0; i < SHA1_SIZE; i++)
sprintf(&vpninfo->xmlsha1[i*2], "%02x", sha1[i]);
vpn_progress(vpninfo, PRG_TRACE, _("XML config file SHA1: %s\n"),
vpninfo->xmlsha1);
xml_doc = xmlReadMemory(xmlfile, st.st_size, "noname.xml", NULL, 0);
munmap(xmlfile, st.st_size);
close(fd);
if (!xml_doc) {
fprintf(stderr, _("Failed to parse XML config file %s\n"),
vpninfo->xmlconfig);
fprintf(stderr, _("Treating host \"%s\" as a raw hostname\n"),
host);
return 0;
}
xml_node = xmlDocGetRootElement(xml_doc);
for (xml_node = xml_node->children; xml_node; xml_node = xml_node->next) {
if (xml_node->type == XML_ELEMENT_NODE &&
!strcmp((char *)xml_node->name, "ServerList")) {
for (xml_node = xml_node->children; xml_node && !vpninfo->hostname;
xml_node = xml_node->next) {
if (xml_node->type == XML_ELEMENT_NODE &&
!strcmp((char *)xml_node->name, "HostEntry")) {
int match = 0;
for (xml_node2 = xml_node->children;
match >= 0 && xml_node2; xml_node2 = xml_node2->next) {
if (xml_node2->type != XML_ELEMENT_NODE)
continue;
if (!match && !strcmp((char *)xml_node2->name, "HostName")) {
char *content = (char *)xmlNodeGetContent(xml_node2);
if (content && !strcmp(content, host))
match = 1;
else
match = -1;
free(content);
} else if (match &&
!strcmp((char *)xml_node2->name, "HostAddress")) {
char *content = (char *)xmlNodeGetContent(xml_node2);
if (content) {
vpninfo->hostname = content;
printf(_("Host \"%s\" has address \"%s\"\n"),
host, content);
}
} else if (match &&
!strcmp((char *)xml_node2->name, "UserGroup")) {
char *content = (char *)xmlNodeGetContent(xml_node2);
if (content) {
free(vpninfo->urlpath);
vpninfo->urlpath = content;
printf(_("Host \"%s\" has UserGroup \"%s\"\n"),
host, content);
}
}
}
}
}
break;
}
}
xmlFreeDoc(xml_doc);
if (!vpninfo->hostname) {
fprintf(stderr, _("Host \"%s\" not listed in config; treating as raw hostname\n"),
host);
}
return 0;
}
|
