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- Committer: Björn Påhlsson
- Date: 2008-08-24 06:21:51 UTC
- mfrom: (96 mandos)
- mto: (237.7.1 mandos) (24.1.154 mandos)
- mto: This revision was merged to the branch mainline in revision 99.
- Revision ID: belorn@braxen-20080824062151-b5me1rgq4lszzt42
merge
- files added:
- COPYING
- files removed:
- ca.pem
- files renamed:
- server.py => mandos
- server.conf => mandos.conf
- plugbasedclient.c => plugin-runner.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
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
31
/* Needed by GPGME, specifically gpgme_data_seek() */
33
32
#define _LARGEFILE_SOURCE
34
33
#define _FILE_OFFSET_BITS 64
35
34
36
#include <stdio.h>
37
#include <assert.h>
38
#include <stdlib.h>
39
#include <time.h>
40
#include <net/if.h> /* if_nametoindex */
41
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_* */
42
76
#include <avahi-core/core.h>
43
77
#include <avahi-core/lookup.h>
44
78
#include <avahi-core/log.h>
46
80
#include <avahi-common/malloc.h>
47
81
#include <avahi-common/error.h>
48
82
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>
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_* */
69
98
70
99
#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";
76
100
77
101
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>";
78
106
107
/* Used for passing in values through the Avahi callback functions */
79
108
typedef struct {
80
gnutls_session_t session;
109
AvahiSimplePoll *simple_poll;
110
AvahiServer *server;
81
111
gnutls_certificate_credentials_t cred;
112
unsigned int dh_bits;
82
113
gnutls_dh_params_t dh_params;
83
} encrypted_session;
84
85
86
ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
87
char **new_packet, const char *homedir){
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){
88
142
gpgme_data_t dh_crypto, dh_plain;
89
143
gpgme_ctx_t ctx;
90
144
gpgme_error_t rc;
91
145
ssize_t ret;
92
ssize_t new_packet_capacity = 0;
93
ssize_t new_packet_length = 0;
146
size_t plaintext_capacity = 0;
147
ssize_t plaintext_length = 0;
94
148
gpgme_engine_info_t engine_info;
95
149
96
150
if (debug){
97
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
151
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
98
152
}
99
153
100
154
/* Init GPGME */
106
160
return -1;
107
161
}
108
162
109
/* Set GPGME home directory */
163
/* Set GPGME home directory for the OpenPGP engine only */
110
164
rc = gpgme_get_engine_info (&engine_info);
111
165
if (rc != GPG_ERR_NO_ERROR){
112
166
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
122
176
engine_info = engine_info->next;
123
177
}
124
178
if(engine_info == NULL){
125
fprintf(stderr, "Could not set home dir to %s\n", homedir);
179
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
126
180
return -1;
127
181
}
128
182
129
/* Create new GPGME data buffer from packet buffer */
130
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
183
/* Create new GPGME data buffer from memory cryptotext */
184
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
185
0);
131
186
if (rc != GPG_ERR_NO_ERROR){
132
187
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
133
188
gpgme_strsource(rc), gpgme_strerror(rc));
139
194
if (rc != GPG_ERR_NO_ERROR){
140
195
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
141
196
gpgme_strsource(rc), gpgme_strerror(rc));
197
gpgme_data_release(dh_crypto);
142
198
return -1;
143
199
}
144
200
147
203
if (rc != GPG_ERR_NO_ERROR){
148
204
fprintf(stderr, "bad gpgme_new: %s: %s\n",
149
205
gpgme_strsource(rc), gpgme_strerror(rc));
150
return -1;
206
plaintext_length = -1;
207
goto decrypt_end;
151
208
}
152
209
153
/* Decrypt data from the FILE pointer to the plaintext data
154
buffer */
210
/* Decrypt data from the cryptotext data buffer to the plaintext
211
data buffer */
155
212
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
156
213
if (rc != GPG_ERR_NO_ERROR){
157
214
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
158
215
gpgme_strsource(rc), gpgme_strerror(rc));
159
return -1;
216
plaintext_length = -1;
217
goto decrypt_end;
160
218
}
161
219
162
220
if(debug){
163
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
221
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
164
222
}
165
223
166
224
if (debug){
167
225
gpgme_decrypt_result_t result;
168
226
result = gpgme_op_decrypt_result(ctx);
171
229
} else {
172
230
fprintf(stderr, "Unsupported algorithm: %s\n",
173
231
result->unsupported_algorithm);
174
fprintf(stderr, "Wrong key usage: %d\n",
232
fprintf(stderr, "Wrong key usage: %u\n",
175
233
result->wrong_key_usage);
176
234
if(result->file_name != NULL){
177
235
fprintf(stderr, "File name: %s\n", result->file_name);
192
250
}
193
251
}
194
252
195
/* Delete the GPGME FILE pointer cryptotext data buffer */
196
gpgme_data_release(dh_crypto);
197
198
253
/* Seek back to the beginning of the GPGME plaintext data buffer */
199
254
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
200
255
perror("pgpme_data_seek");
256
plaintext_length = -1;
257
goto decrypt_end;
201
258
}
202
259
203
*new_packet = 0;
260
*plaintext = NULL;
204
261
while(true){
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;
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;
214
269
}
215
270
216
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
271
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
217
272
BUFFER_SIZE);
218
273
/* Print the data, if any */
219
274
if (ret == 0){
275
/* EOF */
220
276
break;
221
277
}
222
278
if(ret < 0){
223
279
perror("gpgme_data_read");
224
return -1;
280
plaintext_length = -1;
281
goto decrypt_end;
225
282
}
226
new_packet_length += ret;
283
plaintext_length += ret;
227
284
}
228
285
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
/* } */
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);
236
298
237
299
/* Delete the GPGME plaintext data buffer */
238
300
gpgme_data_release(dh_plain);
239
return new_packet_length;
301
return plaintext_length;
240
302
}
241
303
242
304
static const char * safer_gnutls_strerror (int value) {
243
const char *ret = gnutls_strerror (value);
305
const char *ret = gnutls_strerror (value); /* Spurious warning */
244
306
if (ret == NULL)
245
307
ret = "(unknown)";
246
308
return ret;
247
309
}
248
310
249
void debuggnutls(__attribute__((unused)) int level,
250
const char* string){
251
fprintf(stderr, "%s", string);
311
/* GnuTLS log function callback */
312
static void debuggnutls(__attribute__((unused)) int level,
313
const char* string){
314
fprintf(stderr, "GnuTLS: %s", string);
252
315
}
253
316
254
int initgnutls(encrypted_session *es){
255
const char *err;
317
static int init_gnutls_global(mandos_context *mc,
318
const char *pubkeyfilename,
319
const char *seckeyfilename){
256
320
int ret;
257
321
258
322
if(debug){
259
323
fprintf(stderr, "Initializing GnuTLS\n");
260
324
}
261
262
if ((ret = gnutls_global_init ())
263
!= GNUTLS_E_SUCCESS) {
264
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
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));
265
330
return -1;
266
331
}
267
332
268
333
if (debug){
334
/* "Use a log level over 10 to enable all debugging options."
335
* - GnuTLS manual
336
*/
269
337
gnutls_global_set_log_level(11);
270
338
gnutls_global_set_log_function(debuggnutls);
271
339
}
272
340
273
/* openpgp credentials */
274
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
275
!= GNUTLS_E_SUCCESS) {
276
fprintf (stderr, "memory error: %s\n",
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 */
277
346
safer_gnutls_strerror(ret));
347
gnutls_global_deinit ();
278
348
return -1;
279
349
}
280
350
281
351
if(debug){
282
352
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
283
" and keyfile %s as GnuTLS credentials\n", certfile,
284
certkey);
353
" and keyfile %s as GnuTLS credentials\n", pubkeyfilename,
354
seckeyfilename);
285
355
}
286
356
287
357
ret = gnutls_certificate_set_openpgp_key_file
288
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
358
(mc->cred, pubkeyfilename, seckeyfilename,
359
GNUTLS_OPENPGP_FMT_BASE64);
289
360
if (ret != GNUTLS_E_SUCCESS) {
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",
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",
295
365
safer_gnutls_strerror(ret));
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){
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){
319
401
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
320
402
safer_gnutls_strerror(ret));
321
403
}
322
404
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;
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
}
329
415
}
330
416
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",
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",
335
421
safer_gnutls_strerror(ret));
422
gnutls_deinit (*session);
336
423
return -1;
337
424
}
338
425
339
426
/* ignore client certificate if any. */
340
gnutls_certificate_server_set_request (es->session,
427
gnutls_certificate_server_set_request (*session,
341
428
GNUTLS_CERT_IGNORE);
342
429
343
gnutls_dh_set_prime_bits (es->session, DH_BITS);
430
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
344
431
345
432
return 0;
346
433
}
347
434
348
void empty_log(__attribute__((unused)) AvahiLogLevel level,
349
__attribute__((unused)) const char *txt){}
435
/* Avahi log function callback */
436
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
437
__attribute__((unused)) const char *txt){}
350
438
351
int start_mandos_communication(const char *ip, uint16_t port,
352
AvahiIfIndex if_index){
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){
353
443
int ret, tcp_sd;
354
struct sockaddr_in6 to;
355
encrypted_session es;
444
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
356
445
char *buffer = NULL;
357
446
char *decrypted_buffer;
358
447
size_t buffer_length = 0;
359
448
size_t buffer_capacity = 0;
360
449
ssize_t decrypted_buffer_size;
361
size_t written = 0;
450
size_t written;
362
451
int retval = 0;
363
452
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
}
364
459
365
460
if(debug){
366
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
367
ip, port);
461
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
462
"\n", ip, port);
368
463
}
369
464
370
465
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
372
467
perror("socket");
373
468
return -1;
374
469
}
375
376
if(if_indextoname((unsigned int)if_index, interface) == NULL){
377
if(debug){
470
471
if(debug){
472
if(if_indextoname((unsigned int)if_index, interface) == NULL){
378
473
perror("if_indextoname");
474
return -1;
379
475
}
380
return -1;
381
}
382
383
if(debug){
384
476
fprintf(stderr, "Binding to interface %s\n", interface);
385
477
}
386
478
387
memset(&to,0,sizeof(to)); /* Spurious warning */
388
to.sin6_family = AF_INET6;
389
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
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);
390
484
if (ret < 0 ){
391
485
perror("inet_pton");
392
486
return -1;
393
}
487
}
394
488
if(ret == 0){
395
489
fprintf(stderr, "Bad address: %s\n", ip);
396
490
return -1;
397
491
}
398
to.sin6_port = htons(port); /* Spurious warning */
492
to.in6.sin6_port = htons(port); /* Spurious warning */
399
493
400
to.sin6_scope_id = (uint32_t)if_index;
494
to.in6.sin6_scope_id = (uint32_t)if_index;
401
495
402
496
if(debug){
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
/* } */
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
}
412
508
}
413
509
414
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
510
ret = connect(tcp_sd, &to.in, sizeof(to));
415
511
if (ret < 0){
416
512
perror("connect");
417
513
return -1;
418
514
}
419
420
ret = initgnutls (&es);
421
if (ret != 0){
422
retval = -1;
423
return -1;
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
}
424
538
}
425
426
gnutls_transport_set_ptr (es.session,
427
(gnutls_transport_ptr_t) tcp_sd);
428
539
429
540
if(debug){
430
541
fprintf(stderr, "Establishing TLS session with %s\n", ip);
431
542
}
432
543
433
ret = gnutls_handshake (es.session);
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);
434
549
435
550
if (ret != GNUTLS_E_SUCCESS){
436
551
if(debug){
437
fprintf(stderr, "\n*** Handshake failed ***\n");
552
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
438
553
gnutls_perror (ret);
439
554
}
440
555
retval = -1;
441
goto exit;
556
goto mandos_end;
442
557
}
443
558
444
//Retrieve OpenPGP packet that contains the wanted password
559
/* Read OpenPGP packet that contains the wanted password */
445
560
446
561
if(debug){
447
562
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
449
564
}
450
565
451
566
while(true){
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;
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;
459
573
}
460
574
461
ret = gnutls_record_recv
462
(es.session, buffer+buffer_length, BUFFER_SIZE);
575
ret = gnutls_record_recv(session, buffer+buffer_length,
576
BUFFER_SIZE);
463
577
if (ret == 0){
464
578
break;
465
579
}
469
583
case GNUTLS_E_AGAIN:
470
584
break;
471
585
case GNUTLS_E_REHANDSHAKE:
472
ret = gnutls_handshake (es.session);
586
do{
587
ret = gnutls_handshake (session);
588
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
473
589
if (ret < 0){
474
fprintf(stderr, "\n*** Handshake failed ***\n");
590
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
475
591
gnutls_perror (ret);
476
592
retval = -1;
477
goto exit;
593
goto mandos_end;
478
594
}
479
595
break;
480
596
default:
481
597
fprintf(stderr, "Unknown error while reading data from"
482
" encrypted session with mandos server\n");
598
" encrypted session with Mandos server\n");
483
599
retval = -1;
484
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
485
goto exit;
600
gnutls_bye (session, GNUTLS_SHUT_RDWR);
601
goto mandos_end;
486
602
}
487
603
} else {
488
604
buffer_length += (size_t) ret;
489
605
}
490
606
}
491
607
608
if(debug){
609
fprintf(stderr, "Closing TLS session\n");
610
}
611
612
gnutls_bye (session, GNUTLS_SHUT_RDWR);
613
492
614
if (buffer_length > 0){
493
615
decrypted_buffer_size = pgp_packet_decrypt(buffer,
494
616
buffer_length,
495
617
&decrypted_buffer,
496
certdir);
618
keydir);
497
619
if (decrypted_buffer_size >= 0){
620
written = 0;
498
621
while(written < (size_t) decrypted_buffer_size){
499
622
ret = (int)fwrite (decrypted_buffer + written, 1,
500
623
(size_t)decrypted_buffer_size - written,
514
637
retval = -1;
515
638
}
516
639
}
517
518
//shutdown procedure
519
520
if(debug){
521
fprintf(stderr, "Closing TLS session\n");
522
}
523
640
641
/* Shutdown procedure */
642
643
mandos_end:
524
644
free(buffer);
525
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
526
exit:
527
645
close(tcp_sd);
528
gnutls_deinit (es.session);
529
gnutls_certificate_free_credentials (es.cred);
530
gnutls_global_deinit ();
646
gnutls_deinit (session);
531
647
return retval;
532
648
}
533
649
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 */
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);
553
666
554
667
/* Called whenever a service has been resolved successfully or
555
668
timed out */
557
670
switch (event) {
558
671
default:
559
672
case AVAHI_RESOLVER_FAILURE:
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)));
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)));
563
676
break;
564
677
565
678
case AVAHI_RESOLVER_FOUND:
567
680
char ip[AVAHI_ADDRESS_STR_MAX];
568
681
avahi_address_snprint(ip, sizeof(ip), address);
569
682
if(debug){
570
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
571
" port %d\n", name, host_name, ip, port);
683
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
684
PRIu16 ") on port %d\n", name, host_name, ip,
685
interface, port);
572
686
}
573
int ret = start_mandos_communication(ip, port, interface);
687
int ret = start_mandos_communication(ip, port, interface, mc);
574
688
if (ret == 0){
575
exit(EXIT_SUCCESS);
689
avahi_simple_poll_quit(mc->simple_poll);
576
690
}
577
691
}
578
692
}
579
693
avahi_s_service_resolver_free(r);
580
694
}
581
695
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;
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");
628
742
}
743
break;
744
}
629
745
}
630
746
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){
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){
633
750
char *tmp;
634
tmp = malloc(strlen(first) + strlen(second) + 2);
635
if (tmp == NULL){
636
perror("malloc");
751
int ret = asprintf(&tmp, "%s/%s", first, second);
752
if(ret < 0){
637
753
return NULL;
638
754
}
639
strcpy(tmp, first);
640
if (first[0] != '\0' and first[strlen(first) - 1] != '/'){
641
strcat(tmp, "/");
642
}
643
strcat(tmp, second);
644
755
return tmp;
645
756
}
646
757
647
758
648
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
649
AvahiServerConfig config;
759
int main(int argc, char *argv[]){
650
760
AvahiSServiceBrowser *sb = NULL;
651
761
int error;
652
762
int ret;
653
int returncode = EXIT_SUCCESS;
654
const char *interface = NULL;
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;
769
char *connect_to = NULL;
655
770
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
656
char *connect_to = NULL;
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
}
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);
710
937
}
711
938
712
939
if(connect_to != NULL){
715
942
char *address = strrchr(connect_to, ':');
716
943
if(address == NULL){
717
944
fprintf(stderr, "No colon in address\n");
718
exit(EXIT_FAILURE);
945
exitcode = EXIT_FAILURE;
946
goto end;
719
947
}
720
948
errno = 0;
721
949
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
722
950
if(errno){
723
951
perror("Bad port number");
724
exit(EXIT_FAILURE);
952
exitcode = EXIT_FAILURE;
953
goto end;
725
954
}
726
955
*address = '\0';
727
956
address = connect_to;
728
ret = start_mandos_communication(address, port, if_index);
957
ret = start_mandos_communication(address, port, if_index, &mc);
729
958
if(ret < 0){
730
exit(EXIT_FAILURE);
959
exitcode = EXIT_FAILURE;
731
960
} else {
732
exit(EXIT_SUCCESS);
961
exitcode = EXIT_SUCCESS;
733
962
}
734
}
735
736
certkey = combinepath(certdir, certkey);
737
if (certkey == NULL){
738
goto exit;
963
goto end;
739
964
}
740
965
741
966
if (not debug){
742
967
avahi_set_log_function(empty_log);
743
968
}
744
969
745
/* Initialize the psuedo-RNG */
970
/* Initialize the pseudo-RNG for Avahi */
746
971
srand((unsigned int) time(NULL));
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",
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",
772
1003
avahi_strerror(error));
773
returncode = EXIT_FAILURE;
774
goto exit;
1004
exitcode = EXIT_FAILURE;
1005
goto end;
775
1006
}
776
1007
777
/* Create the service browser */
778
sb = avahi_s_service_browser_new(server, if_index,
1008
/* Create the Avahi service browser */
1009
sb = avahi_s_service_browser_new(mc.server, if_index,
779
1010
AVAHI_PROTO_INET6,
780
1011
"_mandos._tcp", NULL, 0,
781
browse_callback, server);
782
if (!sb) {
1012
browse_callback, &mc);
1013
if (sb == NULL) {
783
1014
fprintf(stderr, "Failed to create service browser: %s\n",
784
avahi_strerror(avahi_server_errno(server)));
785
returncode = EXIT_FAILURE;
786
goto exit;
1015
avahi_strerror(avahi_server_errno(mc.server)));
1016
exitcode = EXIT_FAILURE;
1017
goto end;
787
1018
}
788
1019
789
1020
/* Run the main loop */
790
1021
791
1022
if (debug){
792
fprintf(stderr, "Starting avahi loop search\n");
1023
fprintf(stderr, "Starting Avahi loop search\n");
793
1024
}
794
1025
795
avahi_simple_poll_loop(simple_poll);
1026
avahi_simple_poll_loop(mc.simple_poll);
796
1027
797
exit:
1028
end:
798
1029
799
1030
if (debug){
800
1031
fprintf(stderr, "%s exiting\n", argv[0]);
801
1032
}
802
1033
803
1034
/* Cleanup things */
804
if (sb)
1035
if (sb != NULL)
805
1036
avahi_s_service_browser_free(sb);
806
1037
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);
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
}
814
1050
815
return returncode;
1051
return exitcode;
816
1052
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0