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- Committer: Teddy Hogeborn
- Date: 2008-08-09 04:56:00 UTC
- mfrom: (24.1.27 mandos)
- Revision ID: teddy@fukt.bsnet.se-20080809045600-m7jx3tj4wwunaffa
Merge.
- files added:
- mandos-client.xml
- files removed:
- ca.pem
- files renamed:
- mandos-clients.conf => clients.conf
- server.py => mandos
- plugbasedclient.c => mandos-client.c
- plugins.d/passprompt.c => plugins.d/password-prompt.c
- plugins.d/mandosclient.c => plugins.d/password-request.c
- files modified:
- Makefile
added
removed
plugins.d/password-request.c
8
8
* includes the following functions: "resolve_callback",
9
9
* "browse_callback", and parts of "main".
10
10
*
11
* Everything else is Copyright © 2007-2008 Teddy Hogeborn and Björn
12
* Påhlsson.
11
* Everything else is
12
* Copyright © 2007-2008 Teddy Hogeborn & Björn 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 <https://www.fukt.bsnet.se/~belorn/> and
29
* <https://www.fukt.bsnet.se/~teddy/>.
28
* Contact the authors at <mandos@fukt.bsnet.se>.
30
29
*/
31
30
32
#define _FORTIFY_SOURCE 2
33
31
/* Needed by GPGME, specifically gpgme_data_seek() */
34
32
#define _LARGEFILE_SOURCE
35
33
#define _FILE_OFFSET_BITS 64
36
34
37
#include <stdio.h>
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY() */
36
37
#include <stdio.h> /* fprintf(), stderr, fwrite(), stdout, ferror() */
38
#include <stdint.h> /* uint16_t, uint32_t */
39
#include <stddef.h> /* NULL, size_t, ssize_t */
40
#include <stdlib.h> /* free() */
41
#include <stdbool.h> /* bool, true */
42
#include <string.h> /* memset(), strcmp(), strlen, strerror() */
43
#include <sys/ioctl.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
44
SIOCSIFFLAGS */
45
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
46
sockaddr_in6, PF_INET6, SOCK_STREAM, INET6_ADDRSTRLEN */
47
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
48
struct in6_addr, inet_pton(),
49
connect() */
38
50
#include <assert.h>
39
#include <stdlib.h>
51
#include <errno.h> /* perror() */
40
52
#include <time.h>
41
#include <net/if.h> /* if_nametoindex */
53
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
54
SIOCSIFFLAGS, if_indextoname(),
55
if_nametoindex(), IF_NAMESIZE */
56
#include <unistd.h> /* close(), SEEK_SET, off_t, write()*/
57
#include <netinet/in.h>
58
#include <arpa/inet.h> /* inet_pton(), htons */
59
#include <iso646.h> /* not */
60
#include <argp.h> /* struct argp_option,
61
struct argp_state, struct argp,
62
argp_parse() */
42
63
43
#include <avahi-core/core.h>
64
/* Avahi */
65
#include <avahi-core/core.h> /* AvahiSimplePoll, AvahiServer,
66
AvahiIfIndex */
44
67
#include <avahi-core/lookup.h>
45
#include <avahi-core/log.h>
68
#include <avahi-core/log.h> /* AvahiLogLevel */
46
69
#include <avahi-common/simple-watch.h>
47
70
#include <avahi-common/malloc.h>
48
71
#include <avahi-common/error.h>
49
72
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>
73
/* GnuTLS */
74
#include <gnutls/gnutls.h> /* gnutls_certificate_credentials_t,
75
gnutls_dh_params_t,
76
gnutls_strerror(),
77
gnutls_global_init(),
78
gnutls_global_set_log_level(),
79
gnutls_global_set_log_function(),
80
gnutls_certificate_allocate_credentials(),
81
gnutls_global_deinit(),
82
gnutls_dh_params_init(),
83
gnutls_dh_params_generate(),
84
gnutls_certificate_set_dh_params(),
85
gnutls_certificate_free_credentials(),
86
gnutls_session_t, gnutls_init(),
87
gnutls_priority_set_direct(),
88
gnutls_deinit(),
89
gnutls_credentials_set(),
90
gnutls_certificate_server_set_request(),
91
gnutls_dh_set_prime_bits(),
92
gnutls_transport_set_ptr(),
93
gnutls_transport_ptr_t,
94
gnutls_handshake(),
95
gnutls_record_recv()
96
gnutls_perror(), gnutls_bye(),
97
init_gnutls_session(),
98
GNUTLS_E_SUCCESS,
99
GNUTLS_CRD_CERTIFICATE,
100
GNUTLS_CERT_IGNORE,
101
GNUTLS_E_INTERRUPTED,
102
GNUTLS_E_AGAIN,
103
GNUTLS_E_REHANDSHAKE,
104
GNUTLS_SHUT_RDWR, */
105
#include <gnutls/openpgp.h> /* gnutls_certificate_set_openpgp_key_file(),
106
GNUTLS_OPENPGP_FMT_BASE64 */
107
108
/* GPGME */
109
#include <gpgme.h> /* gpgme_data_t, gpgme_ctx_t,
110
gpgme_error_t, gpgme_engine_info_t,
111
gpgme_check_version(),
112
gpgme_engine_check_version(),
113
gpgme_strsource(),
114
gpgme_strerror(),
115
gpgme_get_engine_info(),
116
gpgme_set_engine_info(),
117
gpgme_data_new_from_mem(),
118
gpgme_data_new(), gpgme_new(),
119
gpgme_op_decrypt(),
120
gpgme_decrypt_result_t,
121
gpgme_op_decrypt_result(),
122
gpgme_recipient_t,
123
gpgme_pubkey_algo_name(),
124
gpgme_data_seek(),
125
gpgme_data_read(),
126
gpgme_data_release()
127
GPGME_PROTOCOL_OpenPGP,
128
GPG_ERR_NO_ERROR,
129
GPG_ERR_NO_SECKEY, */
70
130
71
131
#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";
77
132
78
133
bool debug = false;
134
static const char *keydir = "/conf/conf.d/mandos";
135
static const char mandos_protocol_version[] = "1";
136
const char *argp_program_version = "mandosclient 0.9";
137
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
79
138
139
/* Used for passing in values through the Avahi callback functions */
80
140
typedef struct {
81
gnutls_session_t session;
141
AvahiSimplePoll *simple_poll;
142
AvahiServer *server;
82
143
gnutls_certificate_credentials_t cred;
144
unsigned int dh_bits;
83
145
gnutls_dh_params_t dh_params;
84
} encrypted_session;
85
86
87
ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
88
char **new_packet, const char *homedir){
146
const char *priority;
147
} mandos_context;
148
149
/*
150
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
151
* "buffer_capacity" is how much is currently allocated,
152
* "buffer_length" is how much is already used.
153
*/
154
size_t adjustbuffer(char **buffer, size_t buffer_length,
155
size_t buffer_capacity){
156
if (buffer_length + BUFFER_SIZE > buffer_capacity){
157
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
158
if (buffer == NULL){
159
return 0;
160
}
161
buffer_capacity += BUFFER_SIZE;
162
}
163
return buffer_capacity;
164
}
165
166
/*
167
* Decrypt OpenPGP data using keyrings in HOMEDIR.
168
* Returns -1 on error
169
*/
170
static ssize_t pgp_packet_decrypt (const char *cryptotext,
171
size_t crypto_size,
172
char **plaintext,
173
const char *homedir){
89
174
gpgme_data_t dh_crypto, dh_plain;
90
175
gpgme_ctx_t ctx;
91
176
gpgme_error_t rc;
92
177
ssize_t ret;
93
ssize_t new_packet_capacity = 0;
94
ssize_t new_packet_length = 0;
178
size_t plaintext_capacity = 0;
179
ssize_t plaintext_length = 0;
95
180
gpgme_engine_info_t engine_info;
96
181
97
182
if (debug){
98
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
183
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
99
184
}
100
185
101
186
/* Init GPGME */
107
192
return -1;
108
193
}
109
194
110
/* Set GPGME home directory */
195
/* Set GPGME home directory for the OpenPGP engine only */
111
196
rc = gpgme_get_engine_info (&engine_info);
112
197
if (rc != GPG_ERR_NO_ERROR){
113
198
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
123
208
engine_info = engine_info->next;
124
209
}
125
210
if(engine_info == NULL){
126
fprintf(stderr, "Could not set home dir to %s\n", homedir);
211
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
127
212
return -1;
128
213
}
129
214
130
/* Create new GPGME data buffer from packet buffer */
131
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
215
/* Create new GPGME data buffer from memory cryptotext */
216
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
217
0);
132
218
if (rc != GPG_ERR_NO_ERROR){
133
219
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
134
220
gpgme_strsource(rc), gpgme_strerror(rc));
140
226
if (rc != GPG_ERR_NO_ERROR){
141
227
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
142
228
gpgme_strsource(rc), gpgme_strerror(rc));
229
gpgme_data_release(dh_crypto);
143
230
return -1;
144
231
}
145
232
148
235
if (rc != GPG_ERR_NO_ERROR){
149
236
fprintf(stderr, "bad gpgme_new: %s: %s\n",
150
237
gpgme_strsource(rc), gpgme_strerror(rc));
151
return -1;
238
plaintext_length = -1;
239
goto decrypt_end;
152
240
}
153
241
154
/* Decrypt data from the FILE pointer to the plaintext data
155
buffer */
242
/* Decrypt data from the cryptotext data buffer to the plaintext
243
data buffer */
156
244
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
157
245
if (rc != GPG_ERR_NO_ERROR){
158
246
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
159
247
gpgme_strsource(rc), gpgme_strerror(rc));
160
return -1;
248
plaintext_length = -1;
249
goto decrypt_end;
161
250
}
162
251
163
252
if(debug){
164
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
253
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
165
254
}
166
255
167
256
if (debug){
168
257
gpgme_decrypt_result_t result;
169
258
result = gpgme_op_decrypt_result(ctx);
193
282
}
194
283
}
195
284
196
/* Delete the GPGME FILE pointer cryptotext data buffer */
197
gpgme_data_release(dh_crypto);
198
199
285
/* Seek back to the beginning of the GPGME plaintext data buffer */
200
286
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
201
287
perror("pgpme_data_seek");
288
plaintext_length = -1;
289
goto decrypt_end;
202
290
}
203
291
204
*new_packet = 0;
292
*plaintext = NULL;
205
293
while(true){
206
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
207
*new_packet = realloc(*new_packet,
208
(unsigned int)new_packet_capacity
209
+ BUFFER_SIZE);
210
if (*new_packet == NULL){
211
perror("realloc");
212
return -1;
213
}
214
new_packet_capacity += BUFFER_SIZE;
294
plaintext_capacity = adjustbuffer(plaintext,
295
(size_t)plaintext_length,
296
plaintext_capacity);
297
if (plaintext_capacity == 0){
298
perror("adjustbuffer");
299
plaintext_length = -1;
300
goto decrypt_end;
215
301
}
216
302
217
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
303
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
218
304
BUFFER_SIZE);
219
305
/* Print the data, if any */
220
306
if (ret == 0){
307
/* EOF */
221
308
break;
222
309
}
223
310
if(ret < 0){
224
311
perror("gpgme_data_read");
225
return -1;
312
plaintext_length = -1;
313
goto decrypt_end;
226
314
}
227
new_packet_length += ret;
315
plaintext_length += ret;
228
316
}
229
317
230
/* FIXME: check characters before printing to screen so to not print
231
terminal control characters */
232
/* if(debug){ */
233
/* fprintf(stderr, "decrypted password is: "); */
234
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
235
/* fprintf(stderr, "\n"); */
236
/* } */
318
if(debug){
319
fprintf(stderr, "Decrypted password is: ");
320
for(ssize_t i = 0; i < plaintext_length; i++){
321
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
322
}
323
fprintf(stderr, "\n");
324
}
325
326
decrypt_end:
327
328
/* Delete the GPGME cryptotext data buffer */
329
gpgme_data_release(dh_crypto);
237
330
238
331
/* Delete the GPGME plaintext data buffer */
239
332
gpgme_data_release(dh_plain);
240
return new_packet_length;
333
return plaintext_length;
241
334
}
242
335
243
336
static const char * safer_gnutls_strerror (int value) {
247
340
return ret;
248
341
}
249
342
250
void debuggnutls(__attribute__((unused)) int level,
251
const char* string){
252
fprintf(stderr, "%s", string);
343
/* GnuTLS log function callback */
344
static void debuggnutls(__attribute__((unused)) int level,
345
const char* string){
346
fprintf(stderr, "GnuTLS: %s", string);
253
347
}
254
348
255
int initgnutls(encrypted_session *es){
256
const char *err;
349
static int init_gnutls_global(mandos_context *mc,
350
const char *pubkeyfile,
351
const char *seckeyfile){
257
352
int ret;
258
353
259
354
if(debug){
262
357
263
358
if ((ret = gnutls_global_init ())
264
359
!= GNUTLS_E_SUCCESS) {
265
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
360
fprintf (stderr, "GnuTLS global_init: %s\n",
361
safer_gnutls_strerror(ret));
266
362
return -1;
267
363
}
268
364
269
365
if (debug){
366
/* "Use a log level over 10 to enable all debugging options."
367
* - GnuTLS manual
368
*/
270
369
gnutls_global_set_log_level(11);
271
370
gnutls_global_set_log_function(debuggnutls);
272
371
}
273
372
274
/* openpgp credentials */
275
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
373
/* OpenPGP credentials */
374
if ((ret = gnutls_certificate_allocate_credentials (&mc->cred))
276
375
!= GNUTLS_E_SUCCESS) {
277
fprintf (stderr, "memory error: %s\n",
376
fprintf (stderr, "GnuTLS memory error: %s\n",
278
377
safer_gnutls_strerror(ret));
378
gnutls_global_deinit ();
279
379
return -1;
280
380
}
281
381
282
382
if(debug){
283
383
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
284
" and keyfile %s as GnuTLS credentials\n", certfile,
285
certkey);
384
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
385
seckeyfile);
286
386
}
287
387
288
388
ret = gnutls_certificate_set_openpgp_key_file
289
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
389
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
290
390
if (ret != GNUTLS_E_SUCCESS) {
291
fprintf
292
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
293
" '%s')\n",
294
ret, certfile, certkey);
295
fprintf(stdout, "The Error is: %s\n",
391
fprintf(stderr,
392
"Error[%d] while reading the OpenPGP key pair ('%s',"
393
" '%s')\n", ret, pubkeyfile, seckeyfile);
394
fprintf(stdout, "The GnuTLS error is: %s\n",
296
395
safer_gnutls_strerror(ret));
297
return -1;
298
}
299
300
//GnuTLS server initialization
301
if ((ret = gnutls_dh_params_init (&es->dh_params))
302
!= GNUTLS_E_SUCCESS) {
303
fprintf (stderr, "Error in dh parameter initialization: %s\n",
304
safer_gnutls_strerror(ret));
305
return -1;
306
}
307
308
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
309
!= GNUTLS_E_SUCCESS) {
310
fprintf (stderr, "Error in prime generation: %s\n",
311
safer_gnutls_strerror(ret));
312
return -1;
313
}
314
315
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
316
317
// GnuTLS session creation
318
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
319
!= GNUTLS_E_SUCCESS){
396
goto globalfail;
397
}
398
399
/* GnuTLS server initialization */
400
ret = gnutls_dh_params_init(&mc->dh_params);
401
if (ret != GNUTLS_E_SUCCESS) {
402
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
403
" %s\n", safer_gnutls_strerror(ret));
404
goto globalfail;
405
}
406
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
407
if (ret != GNUTLS_E_SUCCESS) {
408
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
409
safer_gnutls_strerror(ret));
410
goto globalfail;
411
}
412
413
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
414
415
return 0;
416
417
globalfail:
418
419
gnutls_certificate_free_credentials(mc->cred);
420
gnutls_global_deinit();
421
return -1;
422
423
}
424
425
static int init_gnutls_session(mandos_context *mc,
426
gnutls_session_t *session){
427
int ret;
428
/* GnuTLS session creation */
429
ret = gnutls_init(session, GNUTLS_SERVER);
430
if (ret != GNUTLS_E_SUCCESS){
320
431
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
321
432
safer_gnutls_strerror(ret));
322
433
}
323
434
324
if ((ret = gnutls_priority_set_direct (es->session, "NORMAL", &err))
325
!= GNUTLS_E_SUCCESS) {
326
fprintf(stderr, "Syntax error at: %s\n", err);
327
fprintf(stderr, "GnuTLS error: %s\n",
328
safer_gnutls_strerror(ret));
329
return -1;
435
{
436
const char *err;
437
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
438
if (ret != GNUTLS_E_SUCCESS) {
439
fprintf(stderr, "Syntax error at: %s\n", err);
440
fprintf(stderr, "GnuTLS error: %s\n",
441
safer_gnutls_strerror(ret));
442
gnutls_deinit (*session);
443
return -1;
444
}
330
445
}
331
446
332
if ((ret = gnutls_credentials_set
333
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
334
!= GNUTLS_E_SUCCESS) {
335
fprintf(stderr, "Error setting a credentials set: %s\n",
447
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
448
mc->cred);
449
if (ret != GNUTLS_E_SUCCESS) {
450
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
336
451
safer_gnutls_strerror(ret));
452
gnutls_deinit (*session);
337
453
return -1;
338
454
}
339
455
340
456
/* ignore client certificate if any. */
341
gnutls_certificate_server_set_request (es->session,
457
gnutls_certificate_server_set_request (*session,
342
458
GNUTLS_CERT_IGNORE);
343
459
344
gnutls_dh_set_prime_bits (es->session, DH_BITS);
460
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
345
461
346
462
return 0;
347
463
}
348
464
349
void empty_log(__attribute__((unused)) AvahiLogLevel level,
350
__attribute__((unused)) const char *txt){}
465
/* Avahi log function callback */
466
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
467
__attribute__((unused)) const char *txt){}
351
468
352
int start_mandos_communication(const char *ip, uint16_t port,
353
unsigned int if_index){
469
/* Called when a Mandos server is found */
470
static int start_mandos_communication(const char *ip, uint16_t port,
471
AvahiIfIndex if_index,
472
mandos_context *mc){
354
473
int ret, tcp_sd;
355
struct sockaddr_in6 to;
356
encrypted_session es;
474
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
357
475
char *buffer = NULL;
358
476
char *decrypted_buffer;
359
477
size_t buffer_length = 0;
360
478
size_t buffer_capacity = 0;
361
479
ssize_t decrypted_buffer_size;
362
size_t written = 0;
480
size_t written;
363
481
int retval = 0;
364
482
char interface[IF_NAMESIZE];
483
gnutls_session_t session;
484
485
ret = init_gnutls_session (mc, &session);
486
if (ret != 0){
487
return -1;
488
}
365
489
366
490
if(debug){
367
fprintf(stderr, "Setting up a tcp connection to %s\n", ip);
491
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
492
ip, port);
368
493
}
369
494
370
495
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
372
497
perror("socket");
373
498
return -1;
374
499
}
375
376
if(if_indextoname(if_index, interface) == NULL){
377
if(debug){
500
501
if(debug){
502
if(if_indextoname((unsigned int)if_index, interface) == NULL){
378
503
perror("if_indextoname");
504
return -1;
379
505
}
380
return -1;
381
}
382
383
if(debug){
384
506
fprintf(stderr, "Binding to interface %s\n", interface);
385
507
}
386
508
387
509
memset(&to,0,sizeof(to)); /* Spurious warning */
388
to.sin6_family = AF_INET6;
389
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
510
to.in6.sin6_family = AF_INET6;
511
/* It would be nice to have a way to detect if we were passed an
512
IPv4 address here. Now we assume an IPv6 address. */
513
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
390
514
if (ret < 0 ){
391
515
perror("inet_pton");
392
516
return -1;
393
}
517
}
394
518
if(ret == 0){
395
519
fprintf(stderr, "Bad address: %s\n", ip);
396
520
return -1;
397
521
}
398
to.sin6_port = htons(port); /* Spurious warning */
522
to.in6.sin6_port = htons(port); /* Spurious warning */
399
523
400
to.sin6_scope_id = (uint32_t)if_index;
524
to.in6.sin6_scope_id = (uint32_t)if_index;
401
525
402
526
if(debug){
403
fprintf(stderr, "Connection to: %s\n", ip);
527
fprintf(stderr, "Connection to: %s, port %d\n", ip, port);
528
char addrstr[INET6_ADDRSTRLEN] = "";
529
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
530
sizeof(addrstr)) == NULL){
531
perror("inet_ntop");
532
} else {
533
if(strcmp(addrstr, ip) != 0){
534
fprintf(stderr, "Canonical address form: %s\n", addrstr);
535
}
536
}
404
537
}
405
538
406
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
539
ret = connect(tcp_sd, &to.in, sizeof(to));
407
540
if (ret < 0){
408
541
perror("connect");
409
542
return -1;
410
543
}
411
412
ret = initgnutls (&es);
413
if (ret != 0){
414
retval = -1;
415
return -1;
544
545
const char *out = mandos_protocol_version;
546
written = 0;
547
while (true){
548
size_t out_size = strlen(out);
549
ret = TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
550
out_size - written));
551
if (ret == -1){
552
perror("write");
553
retval = -1;
554
goto mandos_end;
555
}
556
written += (size_t)ret;
557
if(written < out_size){
558
continue;
559
} else {
560
if (out == mandos_protocol_version){
561
written = 0;
562
out = "\r\n";
563
} else {
564
break;
565
}
566
}
416
567
}
417
418
gnutls_transport_set_ptr (es.session,
419
(gnutls_transport_ptr_t) tcp_sd);
420
568
421
569
if(debug){
422
570
fprintf(stderr, "Establishing TLS session with %s\n", ip);
423
571
}
424
572
425
ret = gnutls_handshake (es.session);
573
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
574
575
ret = gnutls_handshake (session);
426
576
427
577
if (ret != GNUTLS_E_SUCCESS){
428
578
if(debug){
429
fprintf(stderr, "\n*** Handshake failed ***\n");
579
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
430
580
gnutls_perror (ret);
431
581
}
432
582
retval = -1;
433
goto exit;
583
goto mandos_end;
434
584
}
435
585
436
//Retrieve OpenPGP packet that contains the wanted password
586
/* Read OpenPGP packet that contains the wanted password */
437
587
438
588
if(debug){
439
589
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
441
591
}
442
592
443
593
while(true){
444
if (buffer_length + BUFFER_SIZE > buffer_capacity){
445
buffer = realloc(buffer, buffer_capacity + BUFFER_SIZE);
446
if (buffer == NULL){
447
perror("realloc");
448
goto exit;
449
}
450
buffer_capacity += BUFFER_SIZE;
594
buffer_capacity = adjustbuffer(&buffer, buffer_length,
595
buffer_capacity);
596
if (buffer_capacity == 0){
597
perror("adjustbuffer");
598
retval = -1;
599
goto mandos_end;
451
600
}
452
601
453
ret = gnutls_record_recv
454
(es.session, buffer+buffer_length, BUFFER_SIZE);
602
ret = gnutls_record_recv(session, buffer+buffer_length,
603
BUFFER_SIZE);
455
604
if (ret == 0){
456
605
break;
457
606
}
461
610
case GNUTLS_E_AGAIN:
462
611
break;
463
612
case GNUTLS_E_REHANDSHAKE:
464
ret = gnutls_handshake (es.session);
613
ret = gnutls_handshake (session);
465
614
if (ret < 0){
466
fprintf(stderr, "\n*** Handshake failed ***\n");
615
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
467
616
gnutls_perror (ret);
468
617
retval = -1;
469
goto exit;
618
goto mandos_end;
470
619
}
471
620
break;
472
621
default:
473
622
fprintf(stderr, "Unknown error while reading data from"
474
" encrypted session with mandos server\n");
623
" encrypted session with Mandos server\n");
475
624
retval = -1;
476
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
477
goto exit;
625
gnutls_bye (session, GNUTLS_SHUT_RDWR);
626
goto mandos_end;
478
627
}
479
628
} else {
480
629
buffer_length += (size_t) ret;
481
630
}
482
631
}
483
632
633
if(debug){
634
fprintf(stderr, "Closing TLS session\n");
635
}
636
637
gnutls_bye (session, GNUTLS_SHUT_RDWR);
638
484
639
if (buffer_length > 0){
485
640
decrypted_buffer_size = pgp_packet_decrypt(buffer,
486
641
buffer_length,
487
642
&decrypted_buffer,
488
certdir);
643
keydir);
489
644
if (decrypted_buffer_size >= 0){
490
while(written < decrypted_buffer_size){
645
written = 0;
646
while(written < (size_t) decrypted_buffer_size){
491
647
ret = (int)fwrite (decrypted_buffer + written, 1,
492
648
(size_t)decrypted_buffer_size - written,
493
649
stdout);
506
662
retval = -1;
507
663
}
508
664
}
509
510
//shutdown procedure
511
512
if(debug){
513
fprintf(stderr, "Closing TLS session\n");
514
}
515
665
666
/* Shutdown procedure */
667
668
mandos_end:
516
669
free(buffer);
517
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
518
exit:
519
670
close(tcp_sd);
520
gnutls_deinit (es.session);
521
gnutls_certificate_free_credentials (es.cred);
522
gnutls_global_deinit ();
671
gnutls_deinit (session);
523
672
return retval;
524
673
}
525
674
526
static AvahiSimplePoll *simple_poll = NULL;
527
static AvahiServer *server = NULL;
528
529
static void resolve_callback(
530
AvahiSServiceResolver *r,
531
AvahiIfIndex interface,
532
AVAHI_GCC_UNUSED AvahiProtocol protocol,
533
AvahiResolverEvent event,
534
const char *name,
535
const char *type,
536
const char *domain,
537
const char *host_name,
538
const AvahiAddress *address,
539
uint16_t port,
540
AVAHI_GCC_UNUSED AvahiStringList *txt,
541
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
542
AVAHI_GCC_UNUSED void* userdata) {
543
675
static void resolve_callback(AvahiSServiceResolver *r,
676
AvahiIfIndex interface,
677
AVAHI_GCC_UNUSED AvahiProtocol protocol,
678
AvahiResolverEvent event,
679
const char *name,
680
const char *type,
681
const char *domain,
682
const char *host_name,
683
const AvahiAddress *address,
684
uint16_t port,
685
AVAHI_GCC_UNUSED AvahiStringList *txt,
686
AVAHI_GCC_UNUSED AvahiLookupResultFlags
687
flags,
688
void* userdata) {
689
mandos_context *mc = userdata;
544
690
assert(r); /* Spurious warning */
545
691
546
692
/* Called whenever a service has been resolved successfully or
549
695
switch (event) {
550
696
default:
551
697
case AVAHI_RESOLVER_FAILURE:
552
fprintf(stderr, "(Resolver) Failed to resolve service '%s' of"
553
" type '%s' in domain '%s': %s\n", name, type, domain,
554
avahi_strerror(avahi_server_errno(server)));
698
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
699
" of type '%s' in domain '%s': %s\n", name, type, domain,
700
avahi_strerror(avahi_server_errno(mc->server)));
555
701
break;
556
702
557
703
case AVAHI_RESOLVER_FOUND:
559
705
char ip[AVAHI_ADDRESS_STR_MAX];
560
706
avahi_address_snprint(ip, sizeof(ip), address);
561
707
if(debug){
562
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
563
" port %d\n", name, host_name, ip, port);
708
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %d) on"
709
" port %d\n", name, host_name, ip, interface, port);
564
710
}
565
int ret = start_mandos_communication(ip, port,
566
(unsigned int) interface);
711
int ret = start_mandos_communication(ip, port, interface, mc);
567
712
if (ret == 0){
568
713
exit(EXIT_SUCCESS);
569
714
}
572
717
avahi_s_service_resolver_free(r);
573
718
}
574
719
575
static void browse_callback(
576
AvahiSServiceBrowser *b,
577
AvahiIfIndex interface,
578
AvahiProtocol protocol,
579
AvahiBrowserEvent event,
580
const char *name,
581
const char *type,
582
const char *domain,
583
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
584
void* userdata) {
585
586
AvahiServer *s = userdata;
587
assert(b); /* Spurious warning */
588
589
/* Called whenever a new services becomes available on the LAN or
590
is removed from the LAN */
591
592
switch (event) {
593
default:
594
case AVAHI_BROWSER_FAILURE:
595
596
fprintf(stderr, "(Browser) %s\n",
597
avahi_strerror(avahi_server_errno(server)));
598
avahi_simple_poll_quit(simple_poll);
599
return;
600
601
case AVAHI_BROWSER_NEW:
602
/* We ignore the returned resolver object. In the callback
603
function we free it. If the server is terminated before
604
the callback function is called the server will free
605
the resolver for us. */
606
607
if (!(avahi_s_service_resolver_new(s, interface, protocol, name,
608
type, domain,
609
AVAHI_PROTO_INET6, 0,
610
resolve_callback, s)))
611
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
612
avahi_strerror(avahi_server_errno(s)));
613
break;
614
615
case AVAHI_BROWSER_REMOVE:
616
break;
617
618
case AVAHI_BROWSER_ALL_FOR_NOW:
619
case AVAHI_BROWSER_CACHE_EXHAUSTED:
620
break;
720
static void browse_callback( AvahiSServiceBrowser *b,
721
AvahiIfIndex interface,
722
AvahiProtocol protocol,
723
AvahiBrowserEvent event,
724
const char *name,
725
const char *type,
726
const char *domain,
727
AVAHI_GCC_UNUSED AvahiLookupResultFlags
728
flags,
729
void* userdata) {
730
mandos_context *mc = userdata;
731
assert(b); /* Spurious warning */
732
733
/* Called whenever a new services becomes available on the LAN or
734
is removed from the LAN */
735
736
switch (event) {
737
default:
738
case AVAHI_BROWSER_FAILURE:
739
740
fprintf(stderr, "(Avahi browser) %s\n",
741
avahi_strerror(avahi_server_errno(mc->server)));
742
avahi_simple_poll_quit(mc->simple_poll);
743
return;
744
745
case AVAHI_BROWSER_NEW:
746
/* We ignore the returned Avahi resolver object. In the callback
747
function we free it. If the Avahi server is terminated before
748
the callback function is called the Avahi server will free the
749
resolver for us. */
750
751
if (!(avahi_s_service_resolver_new(mc->server, interface,
752
protocol, name, type, domain,
753
AVAHI_PROTO_INET6, 0,
754
resolve_callback, mc)))
755
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
756
name, avahi_strerror(avahi_server_errno(mc->server)));
757
break;
758
759
case AVAHI_BROWSER_REMOVE:
760
break;
761
762
case AVAHI_BROWSER_ALL_FOR_NOW:
763
case AVAHI_BROWSER_CACHE_EXHAUSTED:
764
if(debug){
765
fprintf(stderr, "No Mandos server found, still searching...\n");
621
766
}
767
break;
768
}
622
769
}
623
770
624
/* combinds file name and path and returns the malloced new string. som sane checks could/should be added */
625
const char *combinepath(const char *first, const char *second){
626
char *tmp;
627
tmp = malloc(strlen(first) + strlen(second) + 2);
771
/* Combines file name and path and returns the malloced new
772
string. some sane checks could/should be added */
773
static const char *combinepath(const char *first, const char *second){
774
size_t f_len = strlen(first);
775
size_t s_len = strlen(second);
776
char *tmp = malloc(f_len + s_len + 2);
628
777
if (tmp == NULL){
629
perror("malloc");
630
778
return NULL;
631
779
}
632
strcpy(tmp, first);
633
if (first[0] != '\0' and first[strlen(first) - 1] != '/'){
634
strcat(tmp, "/");
635
}
636
strcat(tmp, second);
780
if(f_len > 0){
781
memcpy(tmp, first, f_len); /* Spurious warning */
782
}
783
tmp[f_len] = '/';
784
if(s_len > 0){
785
memcpy(tmp + f_len + 1, second, s_len); /* Spurious warning */
786
}
787
tmp[f_len + 1 + s_len] = '\0';
637
788
return tmp;
638
789
}
639
790
640
791
641
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
642
AvahiServerConfig config;
792
int main(int argc, char *argv[]){
643
793
AvahiSServiceBrowser *sb = NULL;
644
794
int error;
645
795
int ret;
646
int returncode = EXIT_SUCCESS;
796
int exitcode = EXIT_SUCCESS;
647
797
const char *interface = "eth0";
648
649
while (true){
650
static struct option long_options[] = {
651
{"debug", no_argument, (int *)&debug, 1},
652
{"interface", required_argument, 0, 'i'},
653
{"certdir", required_argument, 0, 'd'},
654
{"certkey", required_argument, 0, 'c'},
655
{"certfile", required_argument, 0, 'k'},
656
{0, 0, 0, 0} };
657
658
int option_index = 0;
659
ret = getopt_long (argc, argv, "i:", long_options,
660
&option_index);
661
662
if (ret == -1){
663
break;
664
}
665
666
switch(ret){
667
case 0:
668
break;
669
case 'i':
670
interface = optarg;
671
break;
672
case 'd':
673
certdir = optarg;
674
break;
675
case 'c':
676
certfile = optarg;
677
break;
678
case 'k':
679
certkey = optarg;
680
break;
681
default:
682
exit(EXIT_FAILURE);
683
}
684
}
685
686
certfile = combinepath(certdir, certfile);
687
if (certfile == NULL){
688
goto exit;
689
}
690
691
certkey = combinepath(certdir, certkey);
692
if (certkey == NULL){
693
goto exit;
694
}
695
798
struct ifreq network;
799
int sd;
800
uid_t uid;
801
gid_t gid;
802
char *connect_to = NULL;
803
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
804
const char *pubkeyfile = "pubkey.txt";
805
const char *seckeyfile = "seckey.txt";
806
mandos_context mc = { .simple_poll = NULL, .server = NULL,
807
.dh_bits = 1024, .priority = "SECURE256"};
808
bool gnutls_initalized = false;
809
810
{
811
struct argp_option options[] = {
812
{ .name = "debug", .key = 128,
813
.doc = "Debug mode", .group = 3 },
814
{ .name = "connect", .key = 'c',
815
.arg = "IP",
816
.doc = "Connect directly to a sepcified mandos server",
817
.group = 1 },
818
{ .name = "interface", .key = 'i',
819
.arg = "INTERFACE",
820
.doc = "Interface that Avahi will conntect through",
821
.group = 1 },
822
{ .name = "keydir", .key = 'd',
823
.arg = "KEYDIR",
824
.doc = "Directory where the openpgp keyring is",
825
.group = 1 },
826
{ .name = "seckey", .key = 's',
827
.arg = "SECKEY",
828
.doc = "Secret openpgp key for gnutls authentication",
829
.group = 1 },
830
{ .name = "pubkey", .key = 'p',
831
.arg = "PUBKEY",
832
.doc = "Public openpgp key for gnutls authentication",
833
.group = 2 },
834
{ .name = "dh-bits", .key = 129,
835
.arg = "BITS",
836
.doc = "dh-bits to use in gnutls communication",
837
.group = 2 },
838
{ .name = "priority", .key = 130,
839
.arg = "PRIORITY",
840
.doc = "GNUTLS priority", .group = 1 },
841
{ .name = NULL }
842
};
843
844
845
error_t parse_opt (int key, char *arg,
846
struct argp_state *state) {
847
/* Get the INPUT argument from `argp_parse', which we know is
848
a pointer to our plugin list pointer. */
849
switch (key) {
850
case 128:
851
debug = true;
852
break;
853
case 'c':
854
connect_to = arg;
855
break;
856
case 'i':
857
interface = arg;
858
break;
859
case 'd':
860
keydir = arg;
861
break;
862
case 's':
863
seckeyfile = arg;
864
break;
865
case 'p':
866
pubkeyfile = arg;
867
break;
868
case 129:
869
errno = 0;
870
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
871
if (errno){
872
perror("strtol");
873
exit(EXIT_FAILURE);
874
}
875
break;
876
case 130:
877
mc.priority = arg;
878
break;
879
case ARGP_KEY_ARG:
880
argp_usage (state);
881
break;
882
case ARGP_KEY_END:
883
break;
884
default:
885
return ARGP_ERR_UNKNOWN;
886
}
887
return 0;
888
}
889
890
struct argp argp = { .options = options, .parser = parse_opt,
891
.args_doc = "",
892
.doc = "Mandos client -- Get and decrypt"
893
" passwords from mandos server" };
894
argp_parse (&argp, argc, argv, 0, 0, NULL);
895
}
896
897
pubkeyfile = combinepath(keydir, pubkeyfile);
898
if (pubkeyfile == NULL){
899
perror("combinepath");
900
exitcode = EXIT_FAILURE;
901
goto end;
902
}
903
904
seckeyfile = combinepath(keydir, seckeyfile);
905
if (seckeyfile == NULL){
906
perror("combinepath");
907
goto end;
908
}
909
910
ret = init_gnutls_global(&mc, pubkeyfile, seckeyfile);
911
if (ret == -1){
912
fprintf(stderr, "init_gnutls_global\n");
913
goto end;
914
} else {
915
gnutls_initalized = true;
916
}
917
918
uid = getuid();
919
gid = getgid();
920
921
ret = setuid(uid);
922
if (ret == -1){
923
perror("setuid");
924
}
925
926
setgid(gid);
927
if (ret == -1){
928
perror("setgid");
929
}
930
931
if_index = (AvahiIfIndex) if_nametoindex(interface);
932
if(if_index == 0){
933
fprintf(stderr, "No such interface: \"%s\"\n", interface);
934
exit(EXIT_FAILURE);
935
}
936
937
if(connect_to != NULL){
938
/* Connect directly, do not use Zeroconf */
939
/* (Mainly meant for debugging) */
940
char *address = strrchr(connect_to, ':');
941
if(address == NULL){
942
fprintf(stderr, "No colon in address\n");
943
exitcode = EXIT_FAILURE;
944
goto end;
945
}
946
errno = 0;
947
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
948
if(errno){
949
perror("Bad port number");
950
exitcode = EXIT_FAILURE;
951
goto end;
952
}
953
*address = '\0';
954
address = connect_to;
955
ret = start_mandos_communication(address, port, if_index, &mc);
956
if(ret < 0){
957
exitcode = EXIT_FAILURE;
958
} else {
959
exitcode = EXIT_SUCCESS;
960
}
961
goto end;
962
}
963
964
/* If the interface is down, bring it up */
965
{
966
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
967
if(sd < 0) {
968
perror("socket");
969
exitcode = EXIT_FAILURE;
970
goto end;
971
}
972
strcpy(network.ifr_name, interface); /* Spurious warning */
973
ret = ioctl(sd, SIOCGIFFLAGS, &network);
974
if(ret == -1){
975
perror("ioctl SIOCGIFFLAGS");
976
exitcode = EXIT_FAILURE;
977
goto end;
978
}
979
if((network.ifr_flags & IFF_UP) == 0){
980
network.ifr_flags |= IFF_UP;
981
ret = ioctl(sd, SIOCSIFFLAGS, &network);
982
if(ret == -1){
983
perror("ioctl SIOCSIFFLAGS");
984
exitcode = EXIT_FAILURE;
985
goto end;
986
}
987
}
988
close(sd);
989
}
990
696
991
if (not debug){
697
992
avahi_set_log_function(empty_log);
698
993
}
699
994
700
/* Initialize the psuedo-RNG */
995
/* Initialize the pseudo-RNG for Avahi */
701
996
srand((unsigned int) time(NULL));
702
703
/* Allocate main loop object */
704
if (!(simple_poll = avahi_simple_poll_new())) {
705
fprintf(stderr, "Failed to create simple poll object.\n");
706
707
goto exit;
708
}
709
710
/* Do not publish any local records */
711
avahi_server_config_init(&config);
712
config.publish_hinfo = 0;
713
config.publish_addresses = 0;
714
config.publish_workstation = 0;
715
config.publish_domain = 0;
716
717
/* Allocate a new server */
718
server = avahi_server_new(avahi_simple_poll_get(simple_poll),
719
&config, NULL, NULL, &error);
720
721
/* Free the configuration data */
722
avahi_server_config_free(&config);
723
724
/* Check if creating the server object succeeded */
725
if (!server) {
726
fprintf(stderr, "Failed to create server: %s\n",
997
998
/* Allocate main Avahi loop object */
999
mc.simple_poll = avahi_simple_poll_new();
1000
if (mc.simple_poll == NULL) {
1001
fprintf(stderr, "Avahi: Failed to create simple poll"
1002
" object.\n");
1003
exitcode = EXIT_FAILURE;
1004
goto end;
1005
}
1006
1007
{
1008
AvahiServerConfig config;
1009
/* Do not publish any local Zeroconf records */
1010
avahi_server_config_init(&config);
1011
config.publish_hinfo = 0;
1012
config.publish_addresses = 0;
1013
config.publish_workstation = 0;
1014
config.publish_domain = 0;
1015
1016
/* Allocate a new server */
1017
mc.server = avahi_server_new(avahi_simple_poll_get
1018
(mc.simple_poll), &config, NULL,
1019
NULL, &error);
1020
1021
/* Free the Avahi configuration data */
1022
avahi_server_config_free(&config);
1023
}
1024
1025
/* Check if creating the Avahi server object succeeded */
1026
if (mc.server == NULL) {
1027
fprintf(stderr, "Failed to create Avahi server: %s\n",
727
1028
avahi_strerror(error));
728
returncode = EXIT_FAILURE;
729
goto exit;
1029
exitcode = EXIT_FAILURE;
1030
goto end;
730
1031
}
731
1032
732
/* Create the service browser */
733
sb = avahi_s_service_browser_new(server,
734
(AvahiIfIndex)
735
if_nametoindex(interface),
1033
/* Create the Avahi service browser */
1034
sb = avahi_s_service_browser_new(mc.server, if_index,
736
1035
AVAHI_PROTO_INET6,
737
1036
"_mandos._tcp", NULL, 0,
738
browse_callback, server);
739
if (!sb) {
1037
browse_callback, &mc);
1038
if (sb == NULL) {
740
1039
fprintf(stderr, "Failed to create service browser: %s\n",
741
avahi_strerror(avahi_server_errno(server)));
742
returncode = EXIT_FAILURE;
743
goto exit;
1040
avahi_strerror(avahi_server_errno(mc.server)));
1041
exitcode = EXIT_FAILURE;
1042
goto end;
744
1043
}
745
1044
746
1045
/* Run the main loop */
747
1046
748
1047
if (debug){
749
fprintf(stderr, "Starting avahi loop search\n");
1048
fprintf(stderr, "Starting Avahi loop search\n");
750
1049
}
751
1050
752
avahi_simple_poll_loop(simple_poll);
1051
avahi_simple_poll_loop(mc.simple_poll);
753
1052
754
exit:
1053
end:
755
1054
756
1055
if (debug){
757
1056
fprintf(stderr, "%s exiting\n", argv[0]);
758
1057
}
759
1058
760
1059
/* Cleanup things */
761
if (sb)
1060
if (sb != NULL)
762
1061
avahi_s_service_browser_free(sb);
763
1062
764
if (server)
765
avahi_server_free(server);
766
767
if (simple_poll)
768
avahi_simple_poll_free(simple_poll);
769
free(certfile);
770
free(certkey);
1063
if (mc.server != NULL)
1064
avahi_server_free(mc.server);
1065
1066
if (mc.simple_poll != NULL)
1067
avahi_simple_poll_free(mc.simple_poll);
1068
free(pubkeyfile);
1069
free(seckeyfile);
1070
1071
if (gnutls_initalized){
1072
gnutls_certificate_free_credentials (mc.cred);
1073
gnutls_global_deinit ();
1074
}
771
1075
772
return returncode;
1076
return exitcode;
773
1077
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0