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
208
209
210
211
212
213
214
215
|
/*
* Copyright (C) 2009 Tobias Brunner
* Copyright (C) 2008 Martin Willi
* Hochschule fuer Technik Rapperswil
*
* This program 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. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* 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 General Public License
* for more details.
*/
#include "library.h"
#include <stdlib.h>
#include <debug.h>
#include <threading/thread.h>
#include <utils/identification.h>
#include <utils/host.h>
#include <utils/hashtable.h>
#include <utils/backtrace.h>
#include <selectors/traffic_selector.h>
#define CHECKSUM_LIBRARY IPSEC_LIB_DIR"/libchecksum.so"
typedef struct private_library_t private_library_t;
/**
* private data of library
*/
struct private_library_t {
/**
* public functions
*/
library_t public;
/**
* Hashtable with registered objects (name => object)
*/
hashtable_t *objects;
};
/**
* library instance
*/
library_t *lib;
/**
* Deinitialize library
*/
void library_deinit()
{
private_library_t *this = (private_library_t*)lib;
bool detailed;
detailed = lib->settings->get_bool(lib->settings,
"libstrongswan.leak_detective.detailed", TRUE);
/* make sure the cache is clear before unloading plugins */
lib->credmgr->flush_cache(lib->credmgr, CERT_ANY);
this->public.scheduler->destroy(this->public.scheduler);
this->public.processor->destroy(this->public.processor);
this->public.plugins->destroy(this->public.plugins);
this->public.settings->destroy(this->public.settings);
this->public.credmgr->destroy(this->public.credmgr);
this->public.creds->destroy(this->public.creds);
this->public.encoding->destroy(this->public.encoding);
this->public.crypto->destroy(this->public.crypto);
this->public.proposal->destroy(this->public.proposal);
this->public.fetcher->destroy(this->public.fetcher);
this->public.db->destroy(this->public.db);
this->public.printf_hook->destroy(this->public.printf_hook);
this->objects->destroy(this->objects);
if (this->public.integrity)
{
this->public.integrity->destroy(this->public.integrity);
}
if (lib->leak_detective)
{
lib->leak_detective->report(lib->leak_detective, detailed);
lib->leak_detective->destroy(lib->leak_detective);
}
threads_deinit();
backtrace_deinit();
free(this);
lib = NULL;
}
METHOD(library_t, get, void*,
private_library_t *this, char *name)
{
return this->objects->get(this->objects, name);
}
METHOD(library_t, set, bool,
private_library_t *this, char *name, void *object)
{
if (object)
{
if (this->objects->get(this->objects, name))
{
return FALSE;
}
this->objects->put(this->objects, name, object);
return TRUE;
}
return this->objects->remove(this->objects, name) != NULL;
}
/**
* Hashtable hash function
*/
static u_int hash(char *key)
{
return chunk_hash(chunk_create(key, strlen(key)));
}
/**
* Hashtable equals function
*/
static bool equals(char *a, char *b)
{
return streq(a, b);
}
/*
* see header file
*/
bool library_init(char *settings)
{
private_library_t *this;
printf_hook_t *pfh;
INIT(this,
.public = {
.get = _get,
.set = _set,
},
);
lib = &this->public;
backtrace_init();
threads_init();
#ifdef LEAK_DETECTIVE
lib->leak_detective = leak_detective_create();
#endif /* LEAK_DETECTIVE */
pfh = printf_hook_create();
this->public.printf_hook = pfh;
pfh->add_handler(pfh, 'b', mem_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_INT,
PRINTF_HOOK_ARGTYPE_END);
pfh->add_handler(pfh, 'B', chunk_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_END);
pfh->add_handler(pfh, 'H', host_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_END);
pfh->add_handler(pfh, 'N', enum_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_INT,
PRINTF_HOOK_ARGTYPE_END);
pfh->add_handler(pfh, 'T', time_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_INT,
PRINTF_HOOK_ARGTYPE_END);
pfh->add_handler(pfh, 'V', time_delta_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_POINTER,
PRINTF_HOOK_ARGTYPE_END);
pfh->add_handler(pfh, 'Y', identification_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_END);
pfh->add_handler(pfh, 'R', traffic_selector_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_END);
this->objects = hashtable_create((hashtable_hash_t)hash,
(hashtable_equals_t)equals, 4);
this->public.settings = settings_create(settings);
this->public.proposal = proposal_keywords_create();
this->public.crypto = crypto_factory_create();
this->public.creds = credential_factory_create();
this->public.credmgr = credential_manager_create();
this->public.encoding = cred_encoding_create();
this->public.fetcher = fetcher_manager_create();
this->public.db = database_factory_create();
this->public.processor = processor_create();
this->public.scheduler = scheduler_create();
this->public.plugins = plugin_loader_create();
if (lib->settings->get_bool(lib->settings,
"libstrongswan.integrity_test", FALSE))
{
#ifdef INTEGRITY_TEST
this->public.integrity = integrity_checker_create(CHECKSUM_LIBRARY);
if (!lib->integrity->check(lib->integrity, "libstrongswan", library_init))
{
DBG1(DBG_LIB, "integrity check of libstrongswan failed");
return FALSE;
}
#else /* !INTEGRITY_TEST */
DBG1(DBG_LIB, "integrity test enabled, but not supported");
return FALSE;
#endif /* INTEGRITY_TEST */
}
return TRUE;
}
|
