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- Committer: Teddy Hogeborn
- Date: 2008-07-31 19:51:44 UTC
- mfrom: (24.1.5 mandos)
- Revision ID: teddy@fukt.bsnet.se-20080731195144-yb37wz2sr1e6b3m4
Merge.
- files added:
- ca.pem
- files removed:
- COPYING
- files renamed:
- plugin-runner.c => plugbasedclient.c
- plugins.d/password-request.c => plugins.d/mandosclient.c
- plugins.d/password-prompt.c => plugins.d/passprompt.c
- mandos.conf => server.conf
- mandos => server.py
- files modified:
- Makefile
added
removed
plugins.d/mandosclient.c
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
32
/* Needed by GPGME, specifically gpgme_data_seek() */
32
33
#define _LARGEFILE_SOURCE
33
34
#define _FILE_OFFSET_BITS 64
34
35
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_* */
36
#include <stdio.h>
37
#include <assert.h>
38
#include <stdlib.h>
39
#include <time.h>
40
#include <net/if.h> /* if_nametoindex */
41
76
42
#include <avahi-core/core.h>
77
43
#include <avahi-core/lookup.h>
78
44
#include <avahi-core/log.h>
80
46
#include <avahi-common/malloc.h>
81
47
#include <avahi-common/error.h>
82
48
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_* */
49
//mandos client part
50
#include <sys/types.h> /* socket(), inet_pton() */
51
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
52
struct in6_addr, inet_pton() */
53
#include <gnutls/gnutls.h> /* All GnuTLS stuff */
54
#include <gnutls/openpgp.h> /* GnuTLS with openpgp stuff */
55
56
#include <unistd.h> /* close() */
57
#include <netinet/in.h>
58
#include <stdbool.h> /* true */
59
#include <string.h> /* memset */
60
#include <arpa/inet.h> /* inet_pton() */
61
#include <iso646.h> /* not */
62
63
// gpgme
64
#include <errno.h> /* perror() */
65
#include <gpgme.h>
66
67
// getopt long
68
#include <getopt.h>
98
69
99
70
#define BUFFER_SIZE 256
71
#define DH_BITS 1024
72
73
const char *certdir = "/conf/conf.d/cryptkeyreq/";
74
const char *certfile = "openpgp-client.txt";
75
const char *certkey = "openpgp-client-key.txt";
100
76
101
77
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
78
107
/* Used for passing in values through the Avahi callback functions */
108
79
typedef struct {
109
AvahiSimplePoll *simple_poll;
110
AvahiServer *server;
80
gnutls_session_t session;
111
81
gnutls_certificate_credentials_t cred;
112
unsigned int dh_bits;
113
82
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){
83
} encrypted_session;
84
85
86
ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
87
char **new_packet, const char *homedir){
142
88
gpgme_data_t dh_crypto, dh_plain;
143
89
gpgme_ctx_t ctx;
144
90
gpgme_error_t rc;
145
91
ssize_t ret;
146
size_t plaintext_capacity = 0;
147
ssize_t plaintext_length = 0;
92
ssize_t new_packet_capacity = 0;
93
ssize_t new_packet_length = 0;
148
94
gpgme_engine_info_t engine_info;
149
95
150
96
if (debug){
151
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
97
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
152
98
}
153
99
154
100
/* Init GPGME */
160
106
return -1;
161
107
}
162
108
163
/* Set GPGME home directory for the OpenPGP engine only */
109
/* Set GPGME home directory */
164
110
rc = gpgme_get_engine_info (&engine_info);
165
111
if (rc != GPG_ERR_NO_ERROR){
166
112
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
176
122
engine_info = engine_info->next;
177
123
}
178
124
if(engine_info == NULL){
179
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
125
fprintf(stderr, "Could not set home dir to %s\n", homedir);
180
126
return -1;
181
127
}
182
128
183
/* Create new GPGME data buffer from memory cryptotext */
184
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
185
0);
129
/* Create new GPGME data buffer from packet buffer */
130
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
186
131
if (rc != GPG_ERR_NO_ERROR){
187
132
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
188
133
gpgme_strsource(rc), gpgme_strerror(rc));
194
139
if (rc != GPG_ERR_NO_ERROR){
195
140
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
196
141
gpgme_strsource(rc), gpgme_strerror(rc));
197
gpgme_data_release(dh_crypto);
198
142
return -1;
199
143
}
200
144
203
147
if (rc != GPG_ERR_NO_ERROR){
204
148
fprintf(stderr, "bad gpgme_new: %s: %s\n",
205
149
gpgme_strsource(rc), gpgme_strerror(rc));
206
plaintext_length = -1;
207
goto decrypt_end;
150
return -1;
208
151
}
209
152
210
/* Decrypt data from the cryptotext data buffer to the plaintext
211
data buffer */
153
/* Decrypt data from the FILE pointer to the plaintext data
154
buffer */
212
155
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
213
156
if (rc != GPG_ERR_NO_ERROR){
214
157
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
215
158
gpgme_strsource(rc), gpgme_strerror(rc));
216
plaintext_length = -1;
217
goto decrypt_end;
159
return -1;
218
160
}
219
161
220
162
if(debug){
221
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
163
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
222
164
}
223
165
224
166
if (debug){
225
167
gpgme_decrypt_result_t result;
226
168
result = gpgme_op_decrypt_result(ctx);
229
171
} else {
230
172
fprintf(stderr, "Unsupported algorithm: %s\n",
231
173
result->unsupported_algorithm);
232
fprintf(stderr, "Wrong key usage: %u\n",
174
fprintf(stderr, "Wrong key usage: %d\n",
233
175
result->wrong_key_usage);
234
176
if(result->file_name != NULL){
235
177
fprintf(stderr, "File name: %s\n", result->file_name);
250
192
}
251
193
}
252
194
195
/* Delete the GPGME FILE pointer cryptotext data buffer */
196
gpgme_data_release(dh_crypto);
197
253
198
/* Seek back to the beginning of the GPGME plaintext data buffer */
254
199
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
255
200
perror("pgpme_data_seek");
256
plaintext_length = -1;
257
goto decrypt_end;
258
201
}
259
202
260
*plaintext = NULL;
203
*new_packet = 0;
261
204
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;
205
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
206
*new_packet = realloc(*new_packet,
207
(unsigned int)new_packet_capacity
208
+ BUFFER_SIZE);
209
if (*new_packet == NULL){
210
perror("realloc");
211
return -1;
212
}
213
new_packet_capacity += BUFFER_SIZE;
269
214
}
270
215
271
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
216
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
272
217
BUFFER_SIZE);
273
218
/* Print the data, if any */
274
219
if (ret == 0){
275
/* EOF */
276
220
break;
277
221
}
278
222
if(ret < 0){
279
223
perror("gpgme_data_read");
280
plaintext_length = -1;
281
goto decrypt_end;
224
return -1;
282
225
}
283
plaintext_length += ret;
226
new_packet_length += ret;
284
227
}
285
228
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);
229
/* FIXME: check characters before printing to screen so to not print
230
terminal control characters */
231
/* if(debug){ */
232
/* fprintf(stderr, "decrypted password is: "); */
233
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
234
/* fprintf(stderr, "\n"); */
235
/* } */
298
236
299
237
/* Delete the GPGME plaintext data buffer */
300
238
gpgme_data_release(dh_plain);
301
return plaintext_length;
239
return new_packet_length;
302
240
}
303
241
304
242
static const char * safer_gnutls_strerror (int value) {
305
const char *ret = gnutls_strerror (value); /* Spurious warning */
243
const char *ret = gnutls_strerror (value);
306
244
if (ret == NULL)
307
245
ret = "(unknown)";
308
246
return ret;
309
247
}
310
248
311
/* GnuTLS log function callback */
312
static void debuggnutls(__attribute__((unused)) int level,
313
const char* string){
314
fprintf(stderr, "GnuTLS: %s", string);
249
void debuggnutls(__attribute__((unused)) int level,
250
const char* string){
251
fprintf(stderr, "%s", string);
315
252
}
316
253
317
static int init_gnutls_global(mandos_context *mc,
318
const char *pubkeyfilename,
319
const char *seckeyfilename){
254
int initgnutls(encrypted_session *es){
255
const char *err;
320
256
int ret;
321
257
322
258
if(debug){
323
259
fprintf(stderr, "Initializing GnuTLS\n");
324
260
}
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));
261
262
if ((ret = gnutls_global_init ())
263
!= GNUTLS_E_SUCCESS) {
264
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
330
265
return -1;
331
266
}
332
267
333
268
if (debug){
334
/* "Use a log level over 10 to enable all debugging options."
335
* - GnuTLS manual
336
*/
337
269
gnutls_global_set_log_level(11);
338
270
gnutls_global_set_log_function(debuggnutls);
339
271
}
340
272
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 */
273
/* openpgp credentials */
274
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
275
!= GNUTLS_E_SUCCESS) {
276
fprintf (stderr, "memory error: %s\n",
346
277
safer_gnutls_strerror(ret));
347
gnutls_global_deinit ();
348
278
return -1;
349
279
}
350
280
351
281
if(debug){
352
282
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
353
" and keyfile %s as GnuTLS credentials\n", pubkeyfilename,
354
seckeyfilename);
283
" and keyfile %s as GnuTLS credentials\n", certfile,
284
certkey);
355
285
}
356
286
357
287
ret = gnutls_certificate_set_openpgp_key_file
358
(mc->cred, pubkeyfilename, seckeyfilename,
359
GNUTLS_OPENPGP_FMT_BASE64);
288
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
360
289
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",
290
fprintf
291
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
292
" '%s')\n",
293
ret, certfile, certkey);
294
fprintf(stdout, "The Error is: %s\n",
365
295
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){
296
return -1;
297
}
298
299
//GnuTLS server initialization
300
if ((ret = gnutls_dh_params_init (&es->dh_params))
301
!= GNUTLS_E_SUCCESS) {
302
fprintf (stderr, "Error in dh parameter initialization: %s\n",
303
safer_gnutls_strerror(ret));
304
return -1;
305
}
306
307
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
308
!= GNUTLS_E_SUCCESS) {
309
fprintf (stderr, "Error in prime generation: %s\n",
310
safer_gnutls_strerror(ret));
311
return -1;
312
}
313
314
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
315
316
// GnuTLS session creation
317
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
318
!= GNUTLS_E_SUCCESS){
401
319
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
402
320
safer_gnutls_strerror(ret));
403
321
}
404
322
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
}
323
if ((ret = gnutls_priority_set_direct (es->session, "NORMAL", &err))
324
!= GNUTLS_E_SUCCESS) {
325
fprintf(stderr, "Syntax error at: %s\n", err);
326
fprintf(stderr, "GnuTLS error: %s\n",
327
safer_gnutls_strerror(ret));
328
return -1;
415
329
}
416
330
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",
331
if ((ret = gnutls_credentials_set
332
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
333
!= GNUTLS_E_SUCCESS) {
334
fprintf(stderr, "Error setting a credentials set: %s\n",
421
335
safer_gnutls_strerror(ret));
422
gnutls_deinit (*session);
423
336
return -1;
424
337
}
425
338
426
339
/* ignore client certificate if any. */
427
gnutls_certificate_server_set_request (*session,
340
gnutls_certificate_server_set_request (es->session,
428
341
GNUTLS_CERT_IGNORE);
429
342
430
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
343
gnutls_dh_set_prime_bits (es->session, DH_BITS);
431
344
432
345
return 0;
433
346
}
434
347
435
/* Avahi log function callback */
436
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
437
__attribute__((unused)) const char *txt){}
348
void empty_log(__attribute__((unused)) AvahiLogLevel level,
349
__attribute__((unused)) const char *txt){}
438
350
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){
351
int start_mandos_communication(const char *ip, uint16_t port,
352
AvahiIfIndex if_index){
443
353
int ret, tcp_sd;
444
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
354
struct sockaddr_in6 to;
355
encrypted_session es;
445
356
char *buffer = NULL;
446
357
char *decrypted_buffer;
447
358
size_t buffer_length = 0;
448
359
size_t buffer_capacity = 0;
449
360
ssize_t decrypted_buffer_size;
450
size_t written;
361
size_t written = 0;
451
362
int retval = 0;
452
363
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
364
460
365
if(debug){
461
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
462
"\n", ip, port);
366
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
367
ip, port);
463
368
}
464
369
465
370
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
467
372
perror("socket");
468
373
return -1;
469
374
}
470
471
if(debug){
472
if(if_indextoname((unsigned int)if_index, interface) == NULL){
375
376
if(if_indextoname((unsigned int)if_index, interface) == NULL){
377
if(debug){
473
378
perror("if_indextoname");
474
return -1;
475
379
}
380
return -1;
381
}
382
383
if(debug){
476
384
fprintf(stderr, "Binding to interface %s\n", interface);
477
385
}
478
386
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);
387
memset(&to,0,sizeof(to)); /* Spurious warning */
388
to.sin6_family = AF_INET6;
389
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
484
390
if (ret < 0 ){
485
391
perror("inet_pton");
486
392
return -1;
487
}
393
}
488
394
if(ret == 0){
489
395
fprintf(stderr, "Bad address: %s\n", ip);
490
396
return -1;
491
397
}
492
to.in6.sin6_port = htons(port); /* Spurious warning */
398
to.sin6_port = htons(port); /* Spurious warning */
493
399
494
to.in6.sin6_scope_id = (uint32_t)if_index;
400
to.sin6_scope_id = (uint32_t)if_index;
495
401
496
402
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
}
403
fprintf(stderr, "Connection to: %s, port %d\n", ip, port);
404
/* char addrstr[INET6_ADDRSTRLEN]; */
405
/* if(inet_ntop(to.sin6_family, &(to.sin6_addr), addrstr, */
406
/* sizeof(addrstr)) == NULL){ */
407
/* perror("inet_ntop"); */
408
/* } else { */
409
/* fprintf(stderr, "Really connecting to: %s, port %d\n", */
410
/* addrstr, ntohs(to.sin6_port)); */
411
/* } */
508
412
}
509
413
510
ret = connect(tcp_sd, &to.in, sizeof(to));
414
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
511
415
if (ret < 0){
512
416
perror("connect");
513
417
return -1;
514
418
}
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
}
419
420
ret = initgnutls (&es);
421
if (ret != 0){
422
retval = -1;
423
return -1;
538
424
}
539
425
426
gnutls_transport_set_ptr (es.session,
427
(gnutls_transport_ptr_t) tcp_sd);
428
540
429
if(debug){
541
430
fprintf(stderr, "Establishing TLS session with %s\n", ip);
542
431
}
543
432
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);
433
ret = gnutls_handshake (es.session);
549
434
550
435
if (ret != GNUTLS_E_SUCCESS){
551
436
if(debug){
552
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
437
fprintf(stderr, "\n*** Handshake failed ***\n");
553
438
gnutls_perror (ret);
554
439
}
555
440
retval = -1;
556
goto mandos_end;
441
goto exit;
557
442
}
558
443
559
/* Read OpenPGP packet that contains the wanted password */
444
//Retrieve OpenPGP packet that contains the wanted password
560
445
561
446
if(debug){
562
447
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
564
449
}
565
450
566
451
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;
452
if (buffer_length + BUFFER_SIZE > buffer_capacity){
453
buffer = realloc(buffer, buffer_capacity + BUFFER_SIZE);
454
if (buffer == NULL){
455
perror("realloc");
456
goto exit;
457
}
458
buffer_capacity += BUFFER_SIZE;
573
459
}
574
460
575
ret = gnutls_record_recv(session, buffer+buffer_length,
576
BUFFER_SIZE);
461
ret = gnutls_record_recv
462
(es.session, buffer+buffer_length, BUFFER_SIZE);
577
463
if (ret == 0){
578
464
break;
579
465
}
583
469
case GNUTLS_E_AGAIN:
584
470
break;
585
471
case GNUTLS_E_REHANDSHAKE:
586
do{
587
ret = gnutls_handshake (session);
588
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
472
ret = gnutls_handshake (es.session);
589
473
if (ret < 0){
590
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
474
fprintf(stderr, "\n*** Handshake failed ***\n");
591
475
gnutls_perror (ret);
592
476
retval = -1;
593
goto mandos_end;
477
goto exit;
594
478
}
595
479
break;
596
480
default:
597
481
fprintf(stderr, "Unknown error while reading data from"
598
" encrypted session with Mandos server\n");
482
" encrypted session with mandos server\n");
599
483
retval = -1;
600
gnutls_bye (session, GNUTLS_SHUT_RDWR);
601
goto mandos_end;
484
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
485
goto exit;
602
486
}
603
487
} else {
604
488
buffer_length += (size_t) ret;
605
489
}
606
490
}
607
491
608
if(debug){
609
fprintf(stderr, "Closing TLS session\n");
610
}
611
612
gnutls_bye (session, GNUTLS_SHUT_RDWR);
613
614
492
if (buffer_length > 0){
615
493
decrypted_buffer_size = pgp_packet_decrypt(buffer,
616
494
buffer_length,
617
495
&decrypted_buffer,
618
keydir);
496
certdir);
619
497
if (decrypted_buffer_size >= 0){
620
written = 0;
621
498
while(written < (size_t) decrypted_buffer_size){
622
499
ret = (int)fwrite (decrypted_buffer + written, 1,
623
500
(size_t)decrypted_buffer_size - written,
637
514
retval = -1;
638
515
}
639
516
}
640
641
/* Shutdown procedure */
642
643
mandos_end:
517
518
//shutdown procedure
519
520
if(debug){
521
fprintf(stderr, "Closing TLS session\n");
522
}
523
644
524
free(buffer);
525
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
526
exit:
645
527
close(tcp_sd);
646
gnutls_deinit (session);
528
gnutls_deinit (es.session);
529
gnutls_certificate_free_credentials (es.cred);
530
gnutls_global_deinit ();
647
531
return retval;
648
532
}
649
533
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);
534
static AvahiSimplePoll *simple_poll = NULL;
535
static AvahiServer *server = NULL;
536
537
static void resolve_callback(
538
AvahiSServiceResolver *r,
539
AvahiIfIndex interface,
540
AVAHI_GCC_UNUSED AvahiProtocol protocol,
541
AvahiResolverEvent event,
542
const char *name,
543
const char *type,
544
const char *domain,
545
const char *host_name,
546
const AvahiAddress *address,
547
uint16_t port,
548
AVAHI_GCC_UNUSED AvahiStringList *txt,
549
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
550
AVAHI_GCC_UNUSED void* userdata) {
551
552
assert(r); /* Spurious warning */
666
553
667
554
/* Called whenever a service has been resolved successfully or
668
555
timed out */
670
557
switch (event) {
671
558
default:
672
559
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)));
560
fprintf(stderr, "(Resolver) Failed to resolve service '%s' of"
561
" type '%s' in domain '%s': %s\n", name, type, domain,
562
avahi_strerror(avahi_server_errno(server)));
676
563
break;
677
564
678
565
case AVAHI_RESOLVER_FOUND:
680
567
char ip[AVAHI_ADDRESS_STR_MAX];
681
568
avahi_address_snprint(ip, sizeof(ip), address);
682
569
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);
570
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
571
" port %d\n", name, host_name, ip, port);
686
572
}
687
int ret = start_mandos_communication(ip, port, interface, mc);
573
int ret = start_mandos_communication(ip, port, interface);
688
574
if (ret == 0){
689
avahi_simple_poll_quit(mc->simple_poll);
575
exit(EXIT_SUCCESS);
690
576
}
691
577
}
692
578
}
693
579
avahi_s_service_resolver_free(r);
694
580
}
695
581
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");
582
static void browse_callback(
583
AvahiSServiceBrowser *b,
584
AvahiIfIndex interface,
585
AvahiProtocol protocol,
586
AvahiBrowserEvent event,
587
const char *name,
588
const char *type,
589
const char *domain,
590
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
591
void* userdata) {
592
593
AvahiServer *s = userdata;
594
assert(b); /* Spurious warning */
595
596
/* Called whenever a new services becomes available on the LAN or
597
is removed from the LAN */
598
599
switch (event) {
600
default:
601
case AVAHI_BROWSER_FAILURE:
602
603
fprintf(stderr, "(Browser) %s\n",
604
avahi_strerror(avahi_server_errno(server)));
605
avahi_simple_poll_quit(simple_poll);
606
return;
607
608
case AVAHI_BROWSER_NEW:
609
/* We ignore the returned resolver object. In the callback
610
function we free it. If the server is terminated before
611
the callback function is called the server will free
612
the resolver for us. */
613
614
if (!(avahi_s_service_resolver_new(s, interface, protocol, name,
615
type, domain,
616
AVAHI_PROTO_INET6, 0,
617
resolve_callback, s)))
618
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
619
avahi_strerror(avahi_server_errno(s)));
620
break;
621
622
case AVAHI_BROWSER_REMOVE:
623
break;
624
625
case AVAHI_BROWSER_ALL_FOR_NOW:
626
case AVAHI_BROWSER_CACHE_EXHAUSTED:
627
break;
742
628
}
743
break;
744
}
745
629
}
746
630
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){
631
/* combinds file name and path and returns the malloced new string. som sane checks could/should be added */
632
const char *combinepath(const char *first, const char *second){
750
633
char *tmp;
751
int ret = asprintf(&tmp, "%s/%s", first, second);
752
if(ret < 0){
634
tmp = malloc(strlen(first) + strlen(second) + 2);
635
if (tmp == NULL){
636
perror("malloc");
753
637
return NULL;
754
638
}
639
strcpy(tmp, first);
640
if (first[0] != '\0' and first[strlen(first) - 1] != '/'){
641
strcat(tmp, "/");
642
}
643
strcat(tmp, second);
755
644
return tmp;
756
645
}
757
646
758
647
759
int main(int argc, char *argv[]){
648
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
649
AvahiServerConfig config;
760
650
AvahiSServiceBrowser *sb = NULL;
761
651
int error;
762
652
int ret;
763
int exitcode = EXIT_SUCCESS;
764
const char *interface = "eth0";
765
struct ifreq network;
766
int sd;
767
uid_t uid;
768
gid_t gid;
653
int returncode = EXIT_SUCCESS;
654
const char *interface = NULL;
655
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
769
656
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);
657
658
while (true){
659
static struct option long_options[] = {
660
{"debug", no_argument, (int *)&debug, 1},
661
{"connect", required_argument, 0, 'C'},
662
{"interface", required_argument, 0, 'i'},
663
{"certdir", required_argument, 0, 'd'},
664
{"certkey", required_argument, 0, 'c'},
665
{"certfile", required_argument, 0, 'k'},
666
{0, 0, 0, 0} };
667
668
int option_index = 0;
669
ret = getopt_long (argc, argv, "i:", long_options,
670
&option_index);
671
672
if (ret == -1){
673
break;
674
}
675
676
switch(ret){
677
case 0:
678
break;
679
case 'i':
680
interface = optarg;
681
break;
682
case 'C':
683
connect_to = optarg;
684
break;
685
case 'd':
686
certdir = optarg;
687
break;
688
case 'c':
689
certfile = optarg;
690
break;
691
case 'k':
692
certkey = optarg;
693
break;
694
default:
695
exit(EXIT_FAILURE);
696
}
697
}
698
699
certfile = combinepath(certdir, certfile);
700
if (certfile == NULL){
701
goto exit;
702
}
703
704
if(interface != NULL){
705
if_index = (AvahiIfIndex) if_nametoindex(interface);
706
if(if_index == 0){
707
fprintf(stderr, "No such interface: \"%s\"\n", interface);
708
exit(EXIT_FAILURE);
709
}
937
710
}
938
711
939
712
if(connect_to != NULL){
942
715
char *address = strrchr(connect_to, ':');
943
716
if(address == NULL){
944
717
fprintf(stderr, "No colon in address\n");
945
exitcode = EXIT_FAILURE;
946
goto end;
718
exit(EXIT_FAILURE);
947
719
}
948
720
errno = 0;
949
721
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
950
722
if(errno){
951
723
perror("Bad port number");
952
exitcode = EXIT_FAILURE;
953
goto end;
724
exit(EXIT_FAILURE);
954
725
}
955
726
*address = '\0';
956
727
address = connect_to;
957
ret = start_mandos_communication(address, port, if_index, &mc);
728
ret = start_mandos_communication(address, port, if_index);
958
729
if(ret < 0){
959
exitcode = EXIT_FAILURE;
730
exit(EXIT_FAILURE);
960
731
} else {
961
exitcode = EXIT_SUCCESS;
732
exit(EXIT_SUCCESS);
962
733
}
963
goto end;
734
}
735
736
certkey = combinepath(certdir, certkey);
737
if (certkey == NULL){
738
goto exit;
964
739
}
965
740
966
741
if (not debug){
967
742
avahi_set_log_function(empty_log);
968
743
}
969
744
970
/* Initialize the pseudo-RNG for Avahi */
745
/* Initialize the psuedo-RNG */
971
746
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",
747
748
/* Allocate main loop object */
749
if (!(simple_poll = avahi_simple_poll_new())) {
750
fprintf(stderr, "Failed to create simple poll object.\n");
751
752
goto exit;
753
}
754
755
/* Do not publish any local records */
756
avahi_server_config_init(&config);
757
config.publish_hinfo = 0;
758
config.publish_addresses = 0;
759
config.publish_workstation = 0;
760
config.publish_domain = 0;
761
762
/* Allocate a new server */
763
server = avahi_server_new(avahi_simple_poll_get(simple_poll),
764
&config, NULL, NULL, &error);
765
766
/* Free the configuration data */
767
avahi_server_config_free(&config);
768
769
/* Check if creating the server object succeeded */
770
if (!server) {
771
fprintf(stderr, "Failed to create server: %s\n",
1003
772
avahi_strerror(error));
1004
exitcode = EXIT_FAILURE;
1005
goto end;
773
returncode = EXIT_FAILURE;
774
goto exit;
1006
775
}
1007
776
1008
/* Create the Avahi service browser */
1009
sb = avahi_s_service_browser_new(mc.server, if_index,
777
/* Create the service browser */
778
sb = avahi_s_service_browser_new(server, if_index,
1010
779
AVAHI_PROTO_INET6,
1011
780
"_mandos._tcp", NULL, 0,
1012
browse_callback, &mc);
1013
if (sb == NULL) {
781
browse_callback, server);
782
if (!sb) {
1014
783
fprintf(stderr, "Failed to create service browser: %s\n",
1015
avahi_strerror(avahi_server_errno(mc.server)));
1016
exitcode = EXIT_FAILURE;
1017
goto end;
784
avahi_strerror(avahi_server_errno(server)));
785
returncode = EXIT_FAILURE;
786
goto exit;
1018
787
}
1019
788
1020
789
/* Run the main loop */
1021
790
1022
791
if (debug){
1023
fprintf(stderr, "Starting Avahi loop search\n");
792
fprintf(stderr, "Starting avahi loop search\n");
1024
793
}
1025
794
1026
avahi_simple_poll_loop(mc.simple_poll);
795
avahi_simple_poll_loop(simple_poll);
1027
796
1028
end:
797
exit:
1029
798
1030
799
if (debug){
1031
800
fprintf(stderr, "%s exiting\n", argv[0]);
1032
801
}
1033
802
1034
803
/* Cleanup things */
1035
if (sb != NULL)
804
if (sb)
1036
805
avahi_s_service_browser_free(sb);
1037
806
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
}
807
if (server)
808
avahi_server_free(server);
809
810
if (simple_poll)
811
avahi_simple_poll_free(simple_poll);
812
free(certfile);
813
free(certkey);
1050
814
1051
return exitcode;
815
return returncode;
1052
816
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0