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- Committer: Björn Påhlsson
- Date: 2008-07-30 02:11:33 UTC
- mto: (237.7.1 mandos) (24.1.154 mandos)
- mto: This revision was merged to the branch mainline in revision 30.
- Revision ID: belorn@braxen-20080730021133-q341llq93r328q5b
Added optional parameters certdir, certkey and certfile that can be iven at start in the command line.
- files added:
- ca.pem
- files removed:
- COPYING
- files renamed:
- clients.conf => mandos-clients.conf
- plugin-runner.c => plugbasedclient.c
- plugins.d/password-request.c => plugins.d/mandosclient.c
- plugins.d/password-prompt.c => plugins.d/passprompt.c
- mandos => server.py
- files modified:
- Makefile
added
removed
plugins.d/mandosclient.c
8
8
* includes the following functions: "resolve_callback",
9
9
* "browse_callback", and parts of "main".
10
10
*
11
* Everything else is
12
* Copyright © 2007-2008 Teddy Hogeborn & Björn Påhlsson
11
* Everything else is Copyright © 2007-2008 Teddy Hogeborn and Björn
12
* Påhlsson.
13
13
*
14
14
* This program is free software: you can redistribute it and/or
15
15
* modify it under the terms of the GNU General Public License as
25
25
* along with this program. If not, see
26
26
* <http://www.gnu.org/licenses/>.
27
27
*
28
* Contact the authors at <mandos@fukt.bsnet.se>.
28
* Contact the authors at <https://www.fukt.bsnet.se/~belorn/> and
29
* <https://www.fukt.bsnet.se/~teddy/>.
29
30
*/
30
31
31
/* Needed by GPGME, specifically gpgme_data_seek() */
32
#define _FORTIFY_SOURCE 2
33
32
34
#define _LARGEFILE_SOURCE
33
35
#define _FILE_OFFSET_BITS 64
34
36
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY(), asprintf() */
36
37
#include <stdio.h> /* fprintf(), stderr, fwrite(),
38
stdout, ferror() */
39
#include <stdint.h> /* uint16_t, uint32_t */
40
#include <stddef.h> /* NULL, size_t, ssize_t */
41
#include <stdlib.h> /* free(), EXIT_SUCCESS, EXIT_FAILURE,
42
srand() */
43
#include <stdbool.h> /* bool, true */
44
#include <string.h> /* memset(), strcmp(), strlen(),
45
strerror(), asprintf(), strcpy() */
46
#include <sys/ioctl.h> /* ioctl */
47
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
48
sockaddr_in6, PF_INET6,
49
SOCK_STREAM, INET6_ADDRSTRLEN,
50
uid_t, gid_t */
51
#include <inttypes.h> /* PRIu16 */
52
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
53
struct in6_addr, inet_pton(),
54
connect() */
55
#include <assert.h> /* assert() */
56
#include <errno.h> /* perror(), errno */
57
#include <time.h> /* time() */
58
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
59
SIOCSIFFLAGS, if_indextoname(),
60
if_nametoindex(), IF_NAMESIZE */
61
#include <unistd.h> /* close(), SEEK_SET, off_t, write(),
62
getuid(), getgid(), setuid(),
63
setgid() */
64
#include <netinet/in.h>
65
#include <arpa/inet.h> /* inet_pton(), htons */
66
#include <iso646.h> /* not, and */
67
#include <argp.h> /* struct argp_option, error_t, struct
68
argp_state, struct argp,
69
argp_parse(), ARGP_KEY_ARG,
70
ARGP_KEY_END, ARGP_ERR_UNKNOWN */
71
72
/* Avahi */
73
/* All Avahi types, constants and functions
74
Avahi*, avahi_*,
75
AVAHI_* */
37
#include <stdio.h>
38
#include <assert.h>
39
#include <stdlib.h>
40
#include <time.h>
41
#include <net/if.h> /* if_nametoindex */
42
76
43
#include <avahi-core/core.h>
77
44
#include <avahi-core/lookup.h>
78
45
#include <avahi-core/log.h>
80
47
#include <avahi-common/malloc.h>
81
48
#include <avahi-common/error.h>
82
49
83
/* GnuTLS */
84
#include <gnutls/gnutls.h> /* All GnuTLS types, constants and
85
functions:
86
gnutls_*
87
init_gnutls_session(),
88
GNUTLS_* */
89
#include <gnutls/openpgp.h> /* gnutls_certificate_set_openpgp_key_file(),
90
GNUTLS_OPENPGP_FMT_BASE64 */
91
92
/* GPGME */
93
#include <gpgme.h> /* All GPGME types, constants and
94
functions:
95
gpgme_*
96
GPGME_PROTOCOL_OpenPGP,
97
GPG_ERR_NO_* */
50
//mandos client part
51
#include <sys/types.h> /* socket(), inet_pton() */
52
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
53
struct in6_addr, inet_pton() */
54
#include <gnutls/gnutls.h> /* All GnuTLS stuff */
55
#include <gnutls/openpgp.h> /* GnuTLS with openpgp stuff */
56
57
#include <unistd.h> /* close() */
58
#include <netinet/in.h>
59
#include <stdbool.h> /* true */
60
#include <string.h> /* memset */
61
#include <arpa/inet.h> /* inet_pton() */
62
#include <iso646.h> /* not */
63
64
// gpgme
65
#include <errno.h> /* perror() */
66
#include <gpgme.h>
67
68
// getopt long
69
#include <getopt.h>
98
70
99
71
#define BUFFER_SIZE 256
72
#define DH_BITS 1024
73
74
const char *certdir = "/conf/conf.d/cryptkeyreq/";
75
const char *certfile = "openpgp-client.txt";
76
const char *certkey = "openpgp-client-key.txt";
100
77
101
78
bool debug = false;
102
static const char *keydir = "/conf/conf.d/mandos";
103
static const char mandos_protocol_version[] = "1";
104
const char *argp_program_version = "password-request 1.0";
105
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
106
79
107
/* Used for passing in values through the Avahi callback functions */
108
80
typedef struct {
109
AvahiSimplePoll *simple_poll;
110
AvahiServer *server;
81
gnutls_session_t session;
111
82
gnutls_certificate_credentials_t cred;
112
unsigned int dh_bits;
113
83
gnutls_dh_params_t dh_params;
114
const char *priority;
115
} mandos_context;
116
117
/*
118
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
119
* "buffer_capacity" is how much is currently allocated,
120
* "buffer_length" is how much is already used.
121
*/
122
size_t adjustbuffer(char **buffer, size_t buffer_length,
123
size_t buffer_capacity){
124
if (buffer_length + BUFFER_SIZE > buffer_capacity){
125
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
126
if (buffer == NULL){
127
return 0;
128
}
129
buffer_capacity += BUFFER_SIZE;
130
}
131
return buffer_capacity;
132
}
133
134
/*
135
* Decrypt OpenPGP data using keyrings in HOMEDIR.
136
* Returns -1 on error
137
*/
138
static ssize_t pgp_packet_decrypt (const char *cryptotext,
139
size_t crypto_size,
140
char **plaintext,
141
const char *homedir){
84
} encrypted_session;
85
86
87
ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
88
char **new_packet, const char *homedir){
142
89
gpgme_data_t dh_crypto, dh_plain;
143
90
gpgme_ctx_t ctx;
144
91
gpgme_error_t rc;
145
92
ssize_t ret;
146
size_t plaintext_capacity = 0;
147
ssize_t plaintext_length = 0;
93
ssize_t new_packet_capacity = 0;
94
ssize_t new_packet_length = 0;
148
95
gpgme_engine_info_t engine_info;
149
96
150
97
if (debug){
151
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
98
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
152
99
}
153
100
154
101
/* Init GPGME */
160
107
return -1;
161
108
}
162
109
163
/* Set GPGME home directory for the OpenPGP engine only */
110
/* Set GPGME home directory */
164
111
rc = gpgme_get_engine_info (&engine_info);
165
112
if (rc != GPG_ERR_NO_ERROR){
166
113
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
176
123
engine_info = engine_info->next;
177
124
}
178
125
if(engine_info == NULL){
179
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
126
fprintf(stderr, "Could not set home dir to %s\n", homedir);
180
127
return -1;
181
128
}
182
129
183
/* Create new GPGME data buffer from memory cryptotext */
184
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
185
0);
130
/* Create new GPGME data buffer from packet buffer */
131
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
186
132
if (rc != GPG_ERR_NO_ERROR){
187
133
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
188
134
gpgme_strsource(rc), gpgme_strerror(rc));
194
140
if (rc != GPG_ERR_NO_ERROR){
195
141
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
196
142
gpgme_strsource(rc), gpgme_strerror(rc));
197
gpgme_data_release(dh_crypto);
198
143
return -1;
199
144
}
200
145
203
148
if (rc != GPG_ERR_NO_ERROR){
204
149
fprintf(stderr, "bad gpgme_new: %s: %s\n",
205
150
gpgme_strsource(rc), gpgme_strerror(rc));
206
plaintext_length = -1;
207
goto decrypt_end;
151
return -1;
208
152
}
209
153
210
/* Decrypt data from the cryptotext data buffer to the plaintext
211
data buffer */
154
/* Decrypt data from the FILE pointer to the plaintext data
155
buffer */
212
156
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
213
157
if (rc != GPG_ERR_NO_ERROR){
214
158
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
215
159
gpgme_strsource(rc), gpgme_strerror(rc));
216
plaintext_length = -1;
217
goto decrypt_end;
160
return -1;
218
161
}
219
162
220
163
if(debug){
221
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
164
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
222
165
}
223
166
224
167
if (debug){
225
168
gpgme_decrypt_result_t result;
226
169
result = gpgme_op_decrypt_result(ctx);
229
172
} else {
230
173
fprintf(stderr, "Unsupported algorithm: %s\n",
231
174
result->unsupported_algorithm);
232
fprintf(stderr, "Wrong key usage: %u\n",
175
fprintf(stderr, "Wrong key usage: %d\n",
233
176
result->wrong_key_usage);
234
177
if(result->file_name != NULL){
235
178
fprintf(stderr, "File name: %s\n", result->file_name);
250
193
}
251
194
}
252
195
196
/* Delete the GPGME FILE pointer cryptotext data buffer */
197
gpgme_data_release(dh_crypto);
198
253
199
/* Seek back to the beginning of the GPGME plaintext data buffer */
254
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
255
perror("pgpme_data_seek");
256
plaintext_length = -1;
257
goto decrypt_end;
258
}
259
260
*plaintext = NULL;
200
gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET);
201
202
*new_packet = 0;
261
203
while(true){
262
plaintext_capacity = adjustbuffer(plaintext,
263
(size_t)plaintext_length,
264
plaintext_capacity);
265
if (plaintext_capacity == 0){
266
perror("adjustbuffer");
267
plaintext_length = -1;
268
goto decrypt_end;
204
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
205
*new_packet = realloc(*new_packet,
206
(unsigned int)new_packet_capacity
207
+ BUFFER_SIZE);
208
if (*new_packet == NULL){
209
perror("realloc");
210
return -1;
211
}
212
new_packet_capacity += BUFFER_SIZE;
269
213
}
270
214
271
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
215
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
272
216
BUFFER_SIZE);
273
217
/* Print the data, if any */
274
218
if (ret == 0){
275
/* EOF */
276
219
break;
277
220
}
278
221
if(ret < 0){
279
222
perror("gpgme_data_read");
280
plaintext_length = -1;
281
goto decrypt_end;
223
return -1;
282
224
}
283
plaintext_length += ret;
225
new_packet_length += ret;
284
226
}
285
227
286
if(debug){
287
fprintf(stderr, "Decrypted password is: ");
288
for(ssize_t i = 0; i < plaintext_length; i++){
289
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
290
}
291
fprintf(stderr, "\n");
292
}
293
294
decrypt_end:
295
296
/* Delete the GPGME cryptotext data buffer */
297
gpgme_data_release(dh_crypto);
228
/* FIXME: check characters before printing to screen so to not print
229
terminal control characters */
230
/* if(debug){ */
231
/* fprintf(stderr, "decrypted password is: "); */
232
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
233
/* fprintf(stderr, "\n"); */
234
/* } */
298
235
299
236
/* Delete the GPGME plaintext data buffer */
300
237
gpgme_data_release(dh_plain);
301
return plaintext_length;
238
return new_packet_length;
302
239
}
303
240
304
241
static const char * safer_gnutls_strerror (int value) {
305
const char *ret = gnutls_strerror (value); /* Spurious warning */
242
const char *ret = gnutls_strerror (value);
306
243
if (ret == NULL)
307
244
ret = "(unknown)";
308
245
return ret;
309
246
}
310
247
311
/* GnuTLS log function callback */
312
static void debuggnutls(__attribute__((unused)) int level,
313
const char* string){
314
fprintf(stderr, "GnuTLS: %s", string);
248
void debuggnutls(__attribute__((unused)) int level,
249
const char* string){
250
fprintf(stderr, "%s", string);
315
251
}
316
252
317
static int init_gnutls_global(mandos_context *mc,
318
const char *pubkeyfilename,
319
const char *seckeyfilename){
253
int initgnutls(encrypted_session *es){
254
const char *err;
320
255
int ret;
321
256
322
257
if(debug){
323
258
fprintf(stderr, "Initializing GnuTLS\n");
324
259
}
325
326
ret = gnutls_global_init();
327
if (ret != GNUTLS_E_SUCCESS) {
328
fprintf (stderr, "GnuTLS global_init: %s\n",
329
safer_gnutls_strerror(ret));
260
261
if ((ret = gnutls_global_init ())
262
!= GNUTLS_E_SUCCESS) {
263
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
330
264
return -1;
331
265
}
332
266
333
267
if (debug){
334
/* "Use a log level over 10 to enable all debugging options."
335
* - GnuTLS manual
336
*/
337
268
gnutls_global_set_log_level(11);
338
269
gnutls_global_set_log_function(debuggnutls);
339
270
}
340
271
341
/* OpenPGP credentials */
342
gnutls_certificate_allocate_credentials(&mc->cred);
343
if (ret != GNUTLS_E_SUCCESS){
344
fprintf (stderr, "GnuTLS memory error: %s\n", /* Spurious
345
warning */
272
/* openpgp credentials */
273
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
274
!= GNUTLS_E_SUCCESS) {
275
fprintf (stderr, "memory error: %s\n",
346
276
safer_gnutls_strerror(ret));
347
gnutls_global_deinit ();
348
277
return -1;
349
278
}
350
279
351
280
if(debug){
352
281
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
353
" and keyfile %s as GnuTLS credentials\n", pubkeyfilename,
354
seckeyfilename);
282
" and keyfile %s as GnuTLS credentials\n", certfile,
283
certkey);
355
284
}
356
285
357
286
ret = gnutls_certificate_set_openpgp_key_file
358
(mc->cred, pubkeyfilename, seckeyfilename,
359
GNUTLS_OPENPGP_FMT_BASE64);
287
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
360
288
if (ret != GNUTLS_E_SUCCESS) {
361
fprintf(stderr,
362
"Error[%d] while reading the OpenPGP key pair ('%s',"
363
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
364
fprintf(stdout, "The GnuTLS error is: %s\n",
289
fprintf
290
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
291
" '%s')\n",
292
ret, certfile, certkey);
293
fprintf(stdout, "The Error is: %s\n",
365
294
safer_gnutls_strerror(ret));
366
goto globalfail;
367
}
368
369
/* GnuTLS server initialization */
370
ret = gnutls_dh_params_init(&mc->dh_params);
371
if (ret != GNUTLS_E_SUCCESS) {
372
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
373
" %s\n", safer_gnutls_strerror(ret));
374
goto globalfail;
375
}
376
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
377
if (ret != GNUTLS_E_SUCCESS) {
378
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
379
safer_gnutls_strerror(ret));
380
goto globalfail;
381
}
382
383
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
384
385
return 0;
386
387
globalfail:
388
389
gnutls_certificate_free_credentials(mc->cred);
390
gnutls_global_deinit();
391
return -1;
392
393
}
394
395
static int init_gnutls_session(mandos_context *mc,
396
gnutls_session_t *session){
397
int ret;
398
/* GnuTLS session creation */
399
ret = gnutls_init(session, GNUTLS_SERVER);
400
if (ret != GNUTLS_E_SUCCESS){
295
return -1;
296
}
297
298
//GnuTLS server initialization
299
if ((ret = gnutls_dh_params_init (&es->dh_params))
300
!= GNUTLS_E_SUCCESS) {
301
fprintf (stderr, "Error in dh parameter initialization: %s\n",
302
safer_gnutls_strerror(ret));
303
return -1;
304
}
305
306
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
307
!= GNUTLS_E_SUCCESS) {
308
fprintf (stderr, "Error in prime generation: %s\n",
309
safer_gnutls_strerror(ret));
310
return -1;
311
}
312
313
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
314
315
// GnuTLS session creation
316
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
317
!= GNUTLS_E_SUCCESS){
401
318
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
402
319
safer_gnutls_strerror(ret));
403
320
}
404
321
405
{
406
const char *err;
407
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
408
if (ret != GNUTLS_E_SUCCESS) {
409
fprintf(stderr, "Syntax error at: %s\n", err);
410
fprintf(stderr, "GnuTLS error: %s\n",
411
safer_gnutls_strerror(ret));
412
gnutls_deinit (*session);
413
return -1;
414
}
322
if ((ret = gnutls_priority_set_direct (es->session, "NORMAL", &err))
323
!= GNUTLS_E_SUCCESS) {
324
fprintf(stderr, "Syntax error at: %s\n", err);
325
fprintf(stderr, "GnuTLS error: %s\n",
326
safer_gnutls_strerror(ret));
327
return -1;
415
328
}
416
329
417
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
418
mc->cred);
419
if (ret != GNUTLS_E_SUCCESS) {
420
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
330
if ((ret = gnutls_credentials_set
331
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
332
!= GNUTLS_E_SUCCESS) {
333
fprintf(stderr, "Error setting a credentials set: %s\n",
421
334
safer_gnutls_strerror(ret));
422
gnutls_deinit (*session);
423
335
return -1;
424
336
}
425
337
426
338
/* ignore client certificate if any. */
427
gnutls_certificate_server_set_request (*session,
339
gnutls_certificate_server_set_request (es->session,
428
340
GNUTLS_CERT_IGNORE);
429
341
430
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
342
gnutls_dh_set_prime_bits (es->session, DH_BITS);
431
343
432
344
return 0;
433
345
}
434
346
435
/* Avahi log function callback */
436
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
437
__attribute__((unused)) const char *txt){}
347
void empty_log(__attribute__((unused)) AvahiLogLevel level,
348
__attribute__((unused)) const char *txt){}
438
349
439
/* Called when a Mandos server is found */
440
static int start_mandos_communication(const char *ip, uint16_t port,
441
AvahiIfIndex if_index,
442
mandos_context *mc){
350
int start_mandos_communication(const char *ip, uint16_t port,
351
unsigned int if_index){
443
352
int ret, tcp_sd;
444
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
353
struct sockaddr_in6 to;
354
encrypted_session es;
445
355
char *buffer = NULL;
446
356
char *decrypted_buffer;
447
357
size_t buffer_length = 0;
448
358
size_t buffer_capacity = 0;
449
359
ssize_t decrypted_buffer_size;
450
size_t written;
360
size_t written = 0;
451
361
int retval = 0;
452
362
char interface[IF_NAMESIZE];
453
gnutls_session_t session;
454
455
ret = init_gnutls_session (mc, &session);
456
if (ret != 0){
457
return -1;
458
}
459
363
460
364
if(debug){
461
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
462
"\n", ip, port);
365
fprintf(stderr, "Setting up a tcp connection to %s\n", ip);
463
366
}
464
367
465
368
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
467
370
perror("socket");
468
371
return -1;
469
372
}
470
471
if(debug){
472
if(if_indextoname((unsigned int)if_index, interface) == NULL){
373
374
if(if_indextoname(if_index, interface) == NULL){
375
if(debug){
473
376
perror("if_indextoname");
474
return -1;
475
377
}
378
return -1;
379
}
380
381
if(debug){
476
382
fprintf(stderr, "Binding to interface %s\n", interface);
477
383
}
478
384
479
memset(&to, 0, sizeof(to));
480
to.in6.sin6_family = AF_INET6;
481
/* It would be nice to have a way to detect if we were passed an
482
IPv4 address here. Now we assume an IPv6 address. */
483
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
385
memset(&to,0,sizeof(to)); /* Spurious warning */
386
to.sin6_family = AF_INET6;
387
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
484
388
if (ret < 0 ){
485
389
perror("inet_pton");
486
390
return -1;
487
}
391
}
488
392
if(ret == 0){
489
393
fprintf(stderr, "Bad address: %s\n", ip);
490
394
return -1;
491
395
}
492
to.in6.sin6_port = htons(port); /* Spurious warning */
396
to.sin6_port = htons(port); /* Spurious warning */
493
397
494
to.in6.sin6_scope_id = (uint32_t)if_index;
398
to.sin6_scope_id = (uint32_t)if_index;
495
399
496
400
if(debug){
497
fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
498
port);
499
char addrstr[INET6_ADDRSTRLEN] = "";
500
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
501
sizeof(addrstr)) == NULL){
502
perror("inet_ntop");
503
} else {
504
if(strcmp(addrstr, ip) != 0){
505
fprintf(stderr, "Canonical address form: %s\n", addrstr);
506
}
507
}
401
fprintf(stderr, "Connection to: %s\n", ip);
508
402
}
509
403
510
ret = connect(tcp_sd, &to.in, sizeof(to));
404
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
511
405
if (ret < 0){
512
406
perror("connect");
513
407
return -1;
514
408
}
515
516
const char *out = mandos_protocol_version;
517
written = 0;
518
while (true){
519
size_t out_size = strlen(out);
520
ret = TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
521
out_size - written));
522
if (ret == -1){
523
perror("write");
524
retval = -1;
525
goto mandos_end;
526
}
527
written += (size_t)ret;
528
if(written < out_size){
529
continue;
530
} else {
531
if (out == mandos_protocol_version){
532
written = 0;
533
out = "\r\n";
534
} else {
535
break;
536
}
537
}
409
410
ret = initgnutls (&es);
411
if (ret != 0){
412
retval = -1;
413
return -1;
538
414
}
539
415
416
gnutls_transport_set_ptr (es.session,
417
(gnutls_transport_ptr_t) tcp_sd);
418
540
419
if(debug){
541
420
fprintf(stderr, "Establishing TLS session with %s\n", ip);
542
421
}
543
422
544
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
545
546
do{
547
ret = gnutls_handshake (session);
548
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
423
ret = gnutls_handshake (es.session);
549
424
550
425
if (ret != GNUTLS_E_SUCCESS){
551
426
if(debug){
552
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
427
fprintf(stderr, "\n*** Handshake failed ***\n");
553
428
gnutls_perror (ret);
554
429
}
555
430
retval = -1;
556
goto mandos_end;
431
goto exit;
557
432
}
558
433
559
/* Read OpenPGP packet that contains the wanted password */
434
//Retrieve OpenPGP packet that contains the wanted password
560
435
561
436
if(debug){
562
437
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
564
439
}
565
440
566
441
while(true){
567
buffer_capacity = adjustbuffer(&buffer, buffer_length,
568
buffer_capacity);
569
if (buffer_capacity == 0){
570
perror("adjustbuffer");
571
retval = -1;
572
goto mandos_end;
442
if (buffer_length + BUFFER_SIZE > buffer_capacity){
443
buffer = realloc(buffer, buffer_capacity + BUFFER_SIZE);
444
if (buffer == NULL){
445
perror("realloc");
446
goto exit;
447
}
448
buffer_capacity += BUFFER_SIZE;
573
449
}
574
450
575
ret = gnutls_record_recv(session, buffer+buffer_length,
576
BUFFER_SIZE);
451
ret = gnutls_record_recv
452
(es.session, buffer+buffer_length, BUFFER_SIZE);
577
453
if (ret == 0){
578
454
break;
579
455
}
583
459
case GNUTLS_E_AGAIN:
584
460
break;
585
461
case GNUTLS_E_REHANDSHAKE:
586
do{
587
ret = gnutls_handshake (session);
588
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
462
ret = gnutls_handshake (es.session);
589
463
if (ret < 0){
590
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
464
fprintf(stderr, "\n*** Handshake failed ***\n");
591
465
gnutls_perror (ret);
592
466
retval = -1;
593
goto mandos_end;
467
goto exit;
594
468
}
595
469
break;
596
470
default:
597
471
fprintf(stderr, "Unknown error while reading data from"
598
" encrypted session with Mandos server\n");
472
" encrypted session with mandos server\n");
599
473
retval = -1;
600
gnutls_bye (session, GNUTLS_SHUT_RDWR);
601
goto mandos_end;
474
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
475
goto exit;
602
476
}
603
477
} else {
604
478
buffer_length += (size_t) ret;
605
479
}
606
480
}
607
481
608
if(debug){
609
fprintf(stderr, "Closing TLS session\n");
610
}
611
612
gnutls_bye (session, GNUTLS_SHUT_RDWR);
613
614
482
if (buffer_length > 0){
615
483
decrypted_buffer_size = pgp_packet_decrypt(buffer,
616
484
buffer_length,
617
485
&decrypted_buffer,
618
keydir);
486
certdir);
619
487
if (decrypted_buffer_size >= 0){
620
written = 0;
621
while(written < (size_t) decrypted_buffer_size){
488
while(written < decrypted_buffer_size){
622
489
ret = (int)fwrite (decrypted_buffer + written, 1,
623
490
(size_t)decrypted_buffer_size - written,
624
491
stdout);
637
504
retval = -1;
638
505
}
639
506
}
640
641
/* Shutdown procedure */
642
643
mandos_end:
507
508
//shutdown procedure
509
510
if(debug){
511
fprintf(stderr, "Closing TLS session\n");
512
}
513
644
514
free(buffer);
515
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
516
exit:
645
517
close(tcp_sd);
646
gnutls_deinit (session);
518
gnutls_deinit (es.session);
519
gnutls_certificate_free_credentials (es.cred);
520
gnutls_global_deinit ();
647
521
return retval;
648
522
}
649
523
650
static void resolve_callback(AvahiSServiceResolver *r,
651
AvahiIfIndex interface,
652
AVAHI_GCC_UNUSED AvahiProtocol protocol,
653
AvahiResolverEvent event,
654
const char *name,
655
const char *type,
656
const char *domain,
657
const char *host_name,
658
const AvahiAddress *address,
659
uint16_t port,
660
AVAHI_GCC_UNUSED AvahiStringList *txt,
661
AVAHI_GCC_UNUSED AvahiLookupResultFlags
662
flags,
663
void* userdata) {
664
mandos_context *mc = userdata;
665
assert(r);
524
static AvahiSimplePoll *simple_poll = NULL;
525
static AvahiServer *server = NULL;
526
527
static void resolve_callback(
528
AvahiSServiceResolver *r,
529
AvahiIfIndex interface,
530
AVAHI_GCC_UNUSED AvahiProtocol protocol,
531
AvahiResolverEvent event,
532
const char *name,
533
const char *type,
534
const char *domain,
535
const char *host_name,
536
const AvahiAddress *address,
537
uint16_t port,
538
AVAHI_GCC_UNUSED AvahiStringList *txt,
539
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
540
AVAHI_GCC_UNUSED void* userdata) {
541
542
assert(r); /* Spurious warning */
666
543
667
544
/* Called whenever a service has been resolved successfully or
668
545
timed out */
670
547
switch (event) {
671
548
default:
672
549
case AVAHI_RESOLVER_FAILURE:
673
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
674
" of type '%s' in domain '%s': %s\n", name, type, domain,
675
avahi_strerror(avahi_server_errno(mc->server)));
550
fprintf(stderr, "(Resolver) Failed to resolve service '%s' of"
551
" type '%s' in domain '%s': %s\n", name, type, domain,
552
avahi_strerror(avahi_server_errno(server)));
676
553
break;
677
554
678
555
case AVAHI_RESOLVER_FOUND:
680
557
char ip[AVAHI_ADDRESS_STR_MAX];
681
558
avahi_address_snprint(ip, sizeof(ip), address);
682
559
if(debug){
683
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
684
PRIu16 ") on port %d\n", name, host_name, ip,
685
interface, port);
560
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
561
" port %d\n", name, host_name, ip, port);
686
562
}
687
int ret = start_mandos_communication(ip, port, interface, mc);
563
int ret = start_mandos_communication(ip, port,
564
(unsigned int) interface);
688
565
if (ret == 0){
689
avahi_simple_poll_quit(mc->simple_poll);
566
exit(EXIT_SUCCESS);
690
567
}
691
568
}
692
569
}
693
570
avahi_s_service_resolver_free(r);
694
571
}
695
572
696
static void browse_callback( AvahiSServiceBrowser *b,
697
AvahiIfIndex interface,
698
AvahiProtocol protocol,
699
AvahiBrowserEvent event,
700
const char *name,
701
const char *type,
702
const char *domain,
703
AVAHI_GCC_UNUSED AvahiLookupResultFlags
704
flags,
705
void* userdata) {
706
mandos_context *mc = userdata;
707
assert(b);
708
709
/* Called whenever a new services becomes available on the LAN or
710
is removed from the LAN */
711
712
switch (event) {
713
default:
714
case AVAHI_BROWSER_FAILURE:
715
716
fprintf(stderr, "(Avahi browser) %s\n",
717
avahi_strerror(avahi_server_errno(mc->server)));
718
avahi_simple_poll_quit(mc->simple_poll);
719
return;
720
721
case AVAHI_BROWSER_NEW:
722
/* We ignore the returned Avahi resolver object. In the callback
723
function we free it. If the Avahi server is terminated before
724
the callback function is called the Avahi server will free the
725
resolver for us. */
726
727
if (!(avahi_s_service_resolver_new(mc->server, interface,
728
protocol, name, type, domain,
729
AVAHI_PROTO_INET6, 0,
730
resolve_callback, mc)))
731
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
732
name, avahi_strerror(avahi_server_errno(mc->server)));
733
break;
734
735
case AVAHI_BROWSER_REMOVE:
736
break;
737
738
case AVAHI_BROWSER_ALL_FOR_NOW:
739
case AVAHI_BROWSER_CACHE_EXHAUSTED:
740
if(debug){
741
fprintf(stderr, "No Mandos server found, still searching...\n");
573
static void browse_callback(
574
AvahiSServiceBrowser *b,
575
AvahiIfIndex interface,
576
AvahiProtocol protocol,
577
AvahiBrowserEvent event,
578
const char *name,
579
const char *type,
580
const char *domain,
581
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
582
void* userdata) {
583
584
AvahiServer *s = userdata;
585
assert(b); /* Spurious warning */
586
587
/* Called whenever a new services becomes available on the LAN or
588
is removed from the LAN */
589
590
switch (event) {
591
default:
592
case AVAHI_BROWSER_FAILURE:
593
594
fprintf(stderr, "(Browser) %s\n",
595
avahi_strerror(avahi_server_errno(server)));
596
avahi_simple_poll_quit(simple_poll);
597
return;
598
599
case AVAHI_BROWSER_NEW:
600
/* We ignore the returned resolver object. In the callback
601
function we free it. If the server is terminated before
602
the callback function is called the server will free
603
the resolver for us. */
604
605
if (!(avahi_s_service_resolver_new(s, interface, protocol, name,
606
type, domain,
607
AVAHI_PROTO_INET6, 0,
608
resolve_callback, s)))
609
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
610
avahi_strerror(avahi_server_errno(s)));
611
break;
612
613
case AVAHI_BROWSER_REMOVE:
614
break;
615
616
case AVAHI_BROWSER_ALL_FOR_NOW:
617
case AVAHI_BROWSER_CACHE_EXHAUSTED:
618
break;
742
619
}
743
break;
744
}
745
620
}
746
621
747
/* Combines file name and path and returns the malloced new
748
string. some sane checks could/should be added */
749
static char *combinepath(const char *first, const char *second){
622
/* combinds two strings and returns the malloced new string. som sane checks could/should be added */
623
const char *combinestrings(const char *first, const char *second){
750
624
char *tmp;
751
int ret = asprintf(&tmp, "%s/%s", first, second);
752
if(ret < 0){
625
tmp = malloc(strlen(first) + strlen(second));
626
if (tmp == NULL){
627
perror("malloc");
753
628
return NULL;
754
629
}
630
strcpy(tmp, first);
631
strcat(tmp, second);
755
632
return tmp;
756
633
}
757
634
758
635
759
int main(int argc, char *argv[]){
636
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
637
AvahiServerConfig config;
760
638
AvahiSServiceBrowser *sb = NULL;
761
639
int error;
762
640
int ret;
763
int exitcode = EXIT_SUCCESS;
641
int returncode = EXIT_SUCCESS;
764
642
const char *interface = "eth0";
765
struct ifreq network;
766
int sd;
767
uid_t uid;
768
gid_t gid;
769
char *connect_to = NULL;
770
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
771
char *pubkeyfilename = NULL;
772
char *seckeyfilename = NULL;
773
const char *pubkeyname = "pubkey.txt";
774
const char *seckeyname = "seckey.txt";
775
mandos_context mc = { .simple_poll = NULL, .server = NULL,
776
.dh_bits = 1024, .priority = "SECURE256"};
777
bool gnutls_initalized = false;
778
779
{
780
struct argp_option options[] = {
781
{ .name = "debug", .key = 128,
782
.doc = "Debug mode", .group = 3 },
783
{ .name = "connect", .key = 'c',
784
.arg = "IP",
785
.doc = "Connect directly to a sepcified mandos server",
786
.group = 1 },
787
{ .name = "interface", .key = 'i',
788
.arg = "INTERFACE",
789
.doc = "Interface that Avahi will conntect through",
790
.group = 1 },
791
{ .name = "keydir", .key = 'd',
792
.arg = "KEYDIR",
793
.doc = "Directory where the openpgp keyring is",
794
.group = 1 },
795
{ .name = "seckey", .key = 's',
796
.arg = "SECKEY",
797
.doc = "Secret openpgp key for gnutls authentication",
798
.group = 1 },
799
{ .name = "pubkey", .key = 'p',
800
.arg = "PUBKEY",
801
.doc = "Public openpgp key for gnutls authentication",
802
.group = 2 },
803
{ .name = "dh-bits", .key = 129,
804
.arg = "BITS",
805
.doc = "dh-bits to use in gnutls communication",
806
.group = 2 },
807
{ .name = "priority", .key = 130,
808
.arg = "PRIORITY",
809
.doc = "GNUTLS priority", .group = 1 },
810
{ .name = NULL }
811
};
812
813
814
error_t parse_opt (int key, char *arg,
815
struct argp_state *state) {
816
/* Get the INPUT argument from `argp_parse', which we know is
817
a pointer to our plugin list pointer. */
818
switch (key) {
819
case 128:
820
debug = true;
821
break;
822
case 'c':
823
connect_to = arg;
824
break;
825
case 'i':
826
interface = arg;
827
break;
828
case 'd':
829
keydir = arg;
830
break;
831
case 's':
832
seckeyname = arg;
833
break;
834
case 'p':
835
pubkeyname = arg;
836
break;
837
case 129:
838
errno = 0;
839
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
840
if (errno){
841
perror("strtol");
842
exit(EXIT_FAILURE);
843
}
844
break;
845
case 130:
846
mc.priority = arg;
847
break;
848
case ARGP_KEY_ARG:
849
argp_usage (state);
850
case ARGP_KEY_END:
851
break;
852
default:
853
return ARGP_ERR_UNKNOWN;
854
}
855
return 0;
856
}
857
858
struct argp argp = { .options = options, .parser = parse_opt,
859
.args_doc = "",
860
.doc = "Mandos client -- Get and decrypt"
861
" passwords from mandos server" };
862
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
863
if (ret == ARGP_ERR_UNKNOWN){
864
fprintf(stderr, "Unknown error while parsing arguments\n");
865
exitcode = EXIT_FAILURE;
866
goto end;
867
}
868
}
869
870
pubkeyfilename = combinepath(keydir, pubkeyname);
871
if (pubkeyfilename == NULL){
872
perror("combinepath");
873
exitcode = EXIT_FAILURE;
874
goto end;
875
}
876
877
seckeyfilename = combinepath(keydir, seckeyname);
878
if (seckeyfilename == NULL){
879
perror("combinepath");
880
exitcode = EXIT_FAILURE;
881
goto end;
882
}
883
884
ret = init_gnutls_global(&mc, pubkeyfilename, seckeyfilename);
885
if (ret == -1){
886
fprintf(stderr, "init_gnutls_global failed\n");
887
exitcode = EXIT_FAILURE;
888
goto end;
889
} else {
890
gnutls_initalized = true;
891
}
892
893
/* If the interface is down, bring it up */
894
{
895
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
896
if(sd < 0) {
897
perror("socket");
898
exitcode = EXIT_FAILURE;
899
goto end;
900
}
901
strcpy(network.ifr_name, interface);
902
ret = ioctl(sd, SIOCGIFFLAGS, &network);
903
if(ret == -1){
904
perror("ioctl SIOCGIFFLAGS");
905
exitcode = EXIT_FAILURE;
906
goto end;
907
}
908
if((network.ifr_flags & IFF_UP) == 0){
909
network.ifr_flags |= IFF_UP;
910
ret = ioctl(sd, SIOCSIFFLAGS, &network);
911
if(ret == -1){
912
perror("ioctl SIOCSIFFLAGS");
913
exitcode = EXIT_FAILURE;
914
goto end;
915
}
916
}
917
close(sd);
918
}
919
920
uid = getuid();
921
gid = getgid();
922
923
ret = setuid(uid);
924
if (ret == -1){
925
perror("setuid");
926
}
927
928
setgid(gid);
929
if (ret == -1){
930
perror("setgid");
931
}
932
933
if_index = (AvahiIfIndex) if_nametoindex(interface);
934
if(if_index == 0){
935
fprintf(stderr, "No such interface: \"%s\"\n", interface);
936
exit(EXIT_FAILURE);
937
}
938
939
if(connect_to != NULL){
940
/* Connect directly, do not use Zeroconf */
941
/* (Mainly meant for debugging) */
942
char *address = strrchr(connect_to, ':');
943
if(address == NULL){
944
fprintf(stderr, "No colon in address\n");
945
exitcode = EXIT_FAILURE;
946
goto end;
947
}
948
errno = 0;
949
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
950
if(errno){
951
perror("Bad port number");
952
exitcode = EXIT_FAILURE;
953
goto end;
954
}
955
*address = '\0';
956
address = connect_to;
957
ret = start_mandos_communication(address, port, if_index, &mc);
958
if(ret < 0){
959
exitcode = EXIT_FAILURE;
960
} else {
961
exitcode = EXIT_SUCCESS;
962
}
963
goto end;
964
}
965
643
644
while (true){
645
static struct option long_options[] = {
646
{"debug", no_argument, (int *)&debug, 1},
647
{"interface", required_argument, 0, 'i'},
648
{"certdir", required_argument, 0, 'd'},
649
{"certkey", required_argument, 0, 'c'},
650
{"certfile", required_argument, 0, 'k'},
651
{0, 0, 0, 0} };
652
653
int option_index = 0;
654
ret = getopt_long (argc, argv, "i:", long_options,
655
&option_index);
656
657
if (ret == -1){
658
break;
659
}
660
661
switch(ret){
662
case 0:
663
break;
664
case 'i':
665
interface = optarg;
666
break;
667
case 'd':
668
certdir = optarg;
669
break;
670
case 'c':
671
certfile = optarg;
672
break;
673
case 'k':
674
certkey = optarg;
675
break;
676
default:
677
exit(EXIT_FAILURE);
678
}
679
}
680
681
certfile = combinestrings(certdir, certfile);
682
if (certfile == NULL){
683
goto exit;
684
}
685
686
certkey = combinestrings(certdir, certkey);
687
if (certkey == NULL){
688
goto exit;
689
}
690
966
691
if (not debug){
967
692
avahi_set_log_function(empty_log);
968
693
}
969
694
970
/* Initialize the pseudo-RNG for Avahi */
695
/* Initialize the psuedo-RNG */
971
696
srand((unsigned int) time(NULL));
972
973
/* Allocate main Avahi loop object */
974
mc.simple_poll = avahi_simple_poll_new();
975
if (mc.simple_poll == NULL) {
976
fprintf(stderr, "Avahi: Failed to create simple poll"
977
" object.\n");
978
exitcode = EXIT_FAILURE;
979
goto end;
980
}
981
982
{
983
AvahiServerConfig config;
984
/* Do not publish any local Zeroconf records */
985
avahi_server_config_init(&config);
986
config.publish_hinfo = 0;
987
config.publish_addresses = 0;
988
config.publish_workstation = 0;
989
config.publish_domain = 0;
990
991
/* Allocate a new server */
992
mc.server = avahi_server_new(avahi_simple_poll_get
993
(mc.simple_poll), &config, NULL,
994
NULL, &error);
995
996
/* Free the Avahi configuration data */
997
avahi_server_config_free(&config);
998
}
999
1000
/* Check if creating the Avahi server object succeeded */
1001
if (mc.server == NULL) {
1002
fprintf(stderr, "Failed to create Avahi server: %s\n",
697
698
/* Allocate main loop object */
699
if (!(simple_poll = avahi_simple_poll_new())) {
700
fprintf(stderr, "Failed to create simple poll object.\n");
701
702
goto exit;
703
}
704
705
/* Do not publish any local records */
706
avahi_server_config_init(&config);
707
config.publish_hinfo = 0;
708
config.publish_addresses = 0;
709
config.publish_workstation = 0;
710
config.publish_domain = 0;
711
712
/* Allocate a new server */
713
server = avahi_server_new(avahi_simple_poll_get(simple_poll),
714
&config, NULL, NULL, &error);
715
716
/* Free the configuration data */
717
avahi_server_config_free(&config);
718
719
/* Check if creating the server object succeeded */
720
if (!server) {
721
fprintf(stderr, "Failed to create server: %s\n",
1003
722
avahi_strerror(error));
1004
exitcode = EXIT_FAILURE;
1005
goto end;
723
returncode = EXIT_FAILURE;
724
goto exit;
1006
725
}
1007
726
1008
/* Create the Avahi service browser */
1009
sb = avahi_s_service_browser_new(mc.server, if_index,
727
/* Create the service browser */
728
sb = avahi_s_service_browser_new(server,
729
(AvahiIfIndex)
730
if_nametoindex(interface),
1010
731
AVAHI_PROTO_INET6,
1011
732
"_mandos._tcp", NULL, 0,
1012
browse_callback, &mc);
1013
if (sb == NULL) {
733
browse_callback, server);
734
if (!sb) {
1014
735
fprintf(stderr, "Failed to create service browser: %s\n",
1015
avahi_strerror(avahi_server_errno(mc.server)));
1016
exitcode = EXIT_FAILURE;
1017
goto end;
736
avahi_strerror(avahi_server_errno(server)));
737
returncode = EXIT_FAILURE;
738
goto exit;
1018
739
}
1019
740
1020
741
/* Run the main loop */
1021
742
1022
743
if (debug){
1023
fprintf(stderr, "Starting Avahi loop search\n");
744
fprintf(stderr, "Starting avahi loop search\n");
1024
745
}
1025
746
1026
avahi_simple_poll_loop(mc.simple_poll);
747
avahi_simple_poll_loop(simple_poll);
1027
748
1028
end:
749
exit:
1029
750
1030
751
if (debug){
1031
752
fprintf(stderr, "%s exiting\n", argv[0]);
1032
753
}
1033
754
1034
755
/* Cleanup things */
1035
if (sb != NULL)
756
if (sb)
1036
757
avahi_s_service_browser_free(sb);
1037
758
1038
if (mc.server != NULL)
1039
avahi_server_free(mc.server);
1040
1041
if (mc.simple_poll != NULL)
1042
avahi_simple_poll_free(mc.simple_poll);
1043
free(pubkeyfilename);
1044
free(seckeyfilename);
1045
1046
if (gnutls_initalized){
1047
gnutls_certificate_free_credentials(mc.cred);
1048
gnutls_global_deinit ();
1049
}
1050
1051
return exitcode;
759
if (server)
760
avahi_server_free(server);
761
762
if (simple_poll)
763
avahi_simple_poll_free(simple_poll);
764
765
return returncode;
1052
766
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0