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- Committer: Teddy Hogeborn
- Date: 2008-08-17 06:01:58 UTC
- Revision ID: teddy@fukt.bsnet.se-20080817060158-o5xakkih6t3br9yq
* Makefile (GNUTLS_CFLAGS, GNUTLS_LIBS, AVAHI_CFLAGS, AVAHI_LIBS,
GPGME_CFLAGS, GPGME_LIBS): New; use libgnutls-config,
pkg-config, and gpgme-config to
get the correct compiler and
linker flags.
(MANPOST): New post-processing stage to man pages to fix a bug with
having "\n" in the DocBook pages.
(objects): Use $(addsuffix) instead of a for loop in a subshell.
(plugin-runner, plugins.d/password-prompt): Removed; targets no
longer necessary.
(.PHONY): Added "doc".
* mandos.xml: Much improved.
* plugins.d/password-request.xml: Improved SEE ALSO section.
GPGME_CFLAGS, GPGME_LIBS): New; use libgnutls-config,
pkg-config, and gpgme-config to
get the correct compiler and
linker flags.
(MANPOST): New post-processing stage to man pages to fix a bug with
having "\n" in the DocBook pages.
(objects): Use $(addsuffix) instead of a for loop in a subshell.
(plugin-runner, plugins.d/password-prompt): Removed; targets no
longer necessary.
(.PHONY): Added "doc".
* mandos.xml: Much improved.
* plugins.d/password-request.xml: Improved SEE ALSO section.
- 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
32
32
#define _LARGEFILE_SOURCE
33
33
#define _FILE_OFFSET_BITS 64
34
34
35
#include <stdio.h>
36
#include <assert.h>
37
#include <stdlib.h>
38
#include <time.h>
39
#include <net/if.h> /* if_nametoindex */
40
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_* */
41
76
#include <avahi-core/core.h>
42
77
#include <avahi-core/lookup.h>
43
78
#include <avahi-core/log.h>
45
80
#include <avahi-common/malloc.h>
46
81
#include <avahi-common/error.h>
47
82
48
//mandos client part
49
#include <sys/types.h> /* socket(), inet_pton() */
50
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
51
struct in6_addr, inet_pton() */
52
#include <gnutls/gnutls.h> /* All GnuTLS stuff */
53
#include <gnutls/openpgp.h> /* GnuTLS with openpgp stuff */
54
55
#include <unistd.h> /* close() */
56
#include <netinet/in.h>
57
#include <stdbool.h> /* true */
58
#include <string.h> /* memset */
59
#include <arpa/inet.h> /* inet_pton() */
60
#include <iso646.h> /* not */
61
62
// gpgme
63
#include <errno.h> /* perror() */
64
#include <gpgme.h>
65
66
// getopt long
67
#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_* */
68
98
69
99
#define BUFFER_SIZE 256
70
#define DH_BITS 1024
71
72
static const char *certdir = "/conf/conf.d/mandos";
73
static const char *certfile = "openpgp-client.txt";
74
static const char *certkey = "openpgp-client-key.txt";
75
100
76
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>";
77
106
107
/* Used for passing in values through the Avahi callback functions */
78
108
typedef struct {
79
gnutls_session_t session;
109
AvahiSimplePoll *simple_poll;
110
AvahiServer *server;
80
111
gnutls_certificate_credentials_t cred;
112
unsigned int dh_bits;
81
113
gnutls_dh_params_t dh_params;
82
} encrypted_session;
83
84
85
static ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
86
char **new_packet,
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,
87
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) {
246
308
return ret;
247
309
}
248
310
311
/* GnuTLS log function callback */
249
312
static void debuggnutls(__attribute__((unused)) int level,
250
313
const char* string){
251
fprintf(stderr, "%s", string);
314
fprintf(stderr, "GnuTLS: %s", string);
252
315
}
253
316
254
static 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",
277
345
safer_gnutls_strerror(ret));
346
gnutls_global_deinit ();
278
347
return -1;
279
348
}
280
349
281
350
if(debug){
282
351
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
283
" and keyfile %s as GnuTLS credentials\n", certfile,
284
certkey);
352
" and keyfile %s as GnuTLS credentials\n", pubkeyfilename,
353
seckeyfilename);
285
354
}
286
355
287
356
ret = gnutls_certificate_set_openpgp_key_file
288
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
357
(mc->cred, pubkeyfilename, seckeyfilename,
358
GNUTLS_OPENPGP_FMT_BASE64);
289
359
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",
360
fprintf(stderr,
361
"Error[%d] while reading the OpenPGP key pair ('%s',"
362
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
363
fprintf(stdout, "The GnuTLS error is: %s\n",
295
364
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){
365
goto globalfail;
366
}
367
368
/* GnuTLS server initialization */
369
ret = gnutls_dh_params_init(&mc->dh_params);
370
if (ret != GNUTLS_E_SUCCESS) {
371
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
372
" %s\n", safer_gnutls_strerror(ret));
373
goto globalfail;
374
}
375
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
376
if (ret != GNUTLS_E_SUCCESS) {
377
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
378
safer_gnutls_strerror(ret));
379
goto globalfail;
380
}
381
382
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
383
384
return 0;
385
386
globalfail:
387
388
gnutls_certificate_free_credentials(mc->cred);
389
gnutls_global_deinit();
390
return -1;
391
392
}
393
394
static int init_gnutls_session(mandos_context *mc,
395
gnutls_session_t *session){
396
int ret;
397
/* GnuTLS session creation */
398
ret = gnutls_init(session, GNUTLS_SERVER);
399
if (ret != GNUTLS_E_SUCCESS){
319
400
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
320
401
safer_gnutls_strerror(ret));
321
402
}
322
403
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;
404
{
405
const char *err;
406
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
407
if (ret != GNUTLS_E_SUCCESS) {
408
fprintf(stderr, "Syntax error at: %s\n", err);
409
fprintf(stderr, "GnuTLS error: %s\n",
410
safer_gnutls_strerror(ret));
411
gnutls_deinit (*session);
412
return -1;
413
}
329
414
}
330
415
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",
416
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
417
mc->cred);
418
if (ret != GNUTLS_E_SUCCESS) {
419
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
335
420
safer_gnutls_strerror(ret));
421
gnutls_deinit (*session);
336
422
return -1;
337
423
}
338
424
339
425
/* ignore client certificate if any. */
340
gnutls_certificate_server_set_request (es->session,
426
gnutls_certificate_server_set_request (*session,
341
427
GNUTLS_CERT_IGNORE);
342
428
343
gnutls_dh_set_prime_bits (es->session, DH_BITS);
429
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
344
430
345
431
return 0;
346
432
}
347
433
434
/* Avahi log function callback */
348
435
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
349
436
__attribute__((unused)) const char *txt){}
350
437
438
/* Called when a Mandos server is found */
351
439
static int start_mandos_communication(const char *ip, uint16_t port,
352
AvahiIfIndex if_index){
440
AvahiIfIndex if_index,
441
mandos_context *mc){
353
442
int ret, tcp_sd;
354
struct sockaddr_in6 to;
355
encrypted_session es;
443
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
356
444
char *buffer = NULL;
357
445
char *decrypted_buffer;
358
446
size_t buffer_length = 0;
359
447
size_t buffer_capacity = 0;
360
448
ssize_t decrypted_buffer_size;
361
size_t written = 0;
449
size_t written;
362
450
int retval = 0;
363
451
char interface[IF_NAMESIZE];
452
gnutls_session_t session;
453
454
ret = init_gnutls_session (mc, &session);
455
if (ret != 0){
456
return -1;
457
}
364
458
365
459
if(debug){
366
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
367
ip, port);
460
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
461
"\n", ip, port);
368
462
}
369
463
370
464
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
372
466
perror("socket");
373
467
return -1;
374
468
}
375
376
if(if_indextoname((unsigned int)if_index, interface) == NULL){
377
if(debug){
469
470
if(debug){
471
if(if_indextoname((unsigned int)if_index, interface) == NULL){
378
472
perror("if_indextoname");
473
return -1;
379
474
}
380
return -1;
381
}
382
383
if(debug){
384
475
fprintf(stderr, "Binding to interface %s\n", interface);
385
476
}
386
477
387
memset(&to,0,sizeof(to)); /* Spurious warning */
388
to.sin6_family = AF_INET6;
389
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
478
memset(&to, 0, sizeof(to)); /* Spurious warning */
479
to.in6.sin6_family = AF_INET6;
480
/* It would be nice to have a way to detect if we were passed an
481
IPv4 address here. Now we assume an IPv6 address. */
482
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
390
483
if (ret < 0 ){
391
484
perror("inet_pton");
392
485
return -1;
393
}
486
}
394
487
if(ret == 0){
395
488
fprintf(stderr, "Bad address: %s\n", ip);
396
489
return -1;
397
490
}
398
to.sin6_port = htons(port); /* Spurious warning */
491
to.in6.sin6_port = htons(port); /* Spurious warning */
399
492
400
to.sin6_scope_id = (uint32_t)if_index;
493
to.in6.sin6_scope_id = (uint32_t)if_index;
401
494
402
495
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
/* } */
496
fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
497
port);
498
char addrstr[INET6_ADDRSTRLEN] = "";
499
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
500
sizeof(addrstr)) == NULL){
501
perror("inet_ntop");
502
} else {
503
if(strcmp(addrstr, ip) != 0){
504
fprintf(stderr, "Canonical address form: %s\n", addrstr);
505
}
506
}
412
507
}
413
508
414
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
509
ret = connect(tcp_sd, &to.in, sizeof(to));
415
510
if (ret < 0){
416
511
perror("connect");
417
512
return -1;
418
513
}
419
420
ret = initgnutls (&es);
421
if (ret != 0){
422
retval = -1;
423
return -1;
514
515
const char *out = mandos_protocol_version;
516
written = 0;
517
while (true){
518
size_t out_size = strlen(out);
519
ret = TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
520
out_size - written));
521
if (ret == -1){
522
perror("write");
523
retval = -1;
524
goto mandos_end;
525
}
526
written += (size_t)ret;
527
if(written < out_size){
528
continue;
529
} else {
530
if (out == mandos_protocol_version){
531
written = 0;
532
out = "\r\n";
533
} else {
534
break;
535
}
536
}
424
537
}
425
426
gnutls_transport_set_ptr (es.session,
427
(gnutls_transport_ptr_t) tcp_sd);
428
538
429
539
if(debug){
430
540
fprintf(stderr, "Establishing TLS session with %s\n", ip);
431
541
}
432
542
433
ret = gnutls_handshake (es.session);
543
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
544
545
do{
546
ret = gnutls_handshake (session);
547
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
434
548
435
549
if (ret != GNUTLS_E_SUCCESS){
436
550
if(debug){
437
fprintf(stderr, "\n*** Handshake failed ***\n");
551
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
438
552
gnutls_perror (ret);
439
553
}
440
554
retval = -1;
441
goto exit;
555
goto mandos_end;
442
556
}
443
557
444
//Retrieve OpenPGP packet that contains the wanted password
558
/* Read OpenPGP packet that contains the wanted password */
445
559
446
560
if(debug){
447
561
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
449
563
}
450
564
451
565
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;
566
buffer_capacity = adjustbuffer(&buffer, buffer_length,
567
buffer_capacity);
568
if (buffer_capacity == 0){
569
perror("adjustbuffer");
570
retval = -1;
571
goto mandos_end;
459
572
}
460
573
461
ret = gnutls_record_recv
462
(es.session, buffer+buffer_length, BUFFER_SIZE);
574
ret = gnutls_record_recv(session, buffer+buffer_length,
575
BUFFER_SIZE);
463
576
if (ret == 0){
464
577
break;
465
578
}
469
582
case GNUTLS_E_AGAIN:
470
583
break;
471
584
case GNUTLS_E_REHANDSHAKE:
472
ret = gnutls_handshake (es.session);
585
do{
586
ret = gnutls_handshake (session);
587
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
473
588
if (ret < 0){
474
fprintf(stderr, "\n*** Handshake failed ***\n");
589
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
475
590
gnutls_perror (ret);
476
591
retval = -1;
477
goto exit;
592
goto mandos_end;
478
593
}
479
594
break;
480
595
default:
481
596
fprintf(stderr, "Unknown error while reading data from"
482
" encrypted session with mandos server\n");
597
" encrypted session with Mandos server\n");
483
598
retval = -1;
484
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
485
goto exit;
599
gnutls_bye (session, GNUTLS_SHUT_RDWR);
600
goto mandos_end;
486
601
}
487
602
} else {
488
603
buffer_length += (size_t) ret;
489
604
}
490
605
}
491
606
607
if(debug){
608
fprintf(stderr, "Closing TLS session\n");
609
}
610
611
gnutls_bye (session, GNUTLS_SHUT_RDWR);
612
492
613
if (buffer_length > 0){
493
614
decrypted_buffer_size = pgp_packet_decrypt(buffer,
494
615
buffer_length,
495
616
&decrypted_buffer,
496
certdir);
617
keydir);
497
618
if (decrypted_buffer_size >= 0){
619
written = 0;
498
620
while(written < (size_t) decrypted_buffer_size){
499
621
ret = (int)fwrite (decrypted_buffer + written, 1,
500
622
(size_t)decrypted_buffer_size - written,
514
636
retval = -1;
515
637
}
516
638
}
517
518
//shutdown procedure
519
520
if(debug){
521
fprintf(stderr, "Closing TLS session\n");
522
}
523
639
640
/* Shutdown procedure */
641
642
mandos_end:
524
643
free(buffer);
525
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
526
exit:
527
644
close(tcp_sd);
528
gnutls_deinit (es.session);
529
gnutls_certificate_free_credentials (es.cred);
530
gnutls_global_deinit ();
645
gnutls_deinit (session);
531
646
return retval;
532
647
}
533
648
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
649
static void resolve_callback(AvahiSServiceResolver *r,
650
AvahiIfIndex interface,
651
AVAHI_GCC_UNUSED AvahiProtocol protocol,
652
AvahiResolverEvent event,
653
const char *name,
654
const char *type,
655
const char *domain,
656
const char *host_name,
657
const AvahiAddress *address,
658
uint16_t port,
659
AVAHI_GCC_UNUSED AvahiStringList *txt,
660
AVAHI_GCC_UNUSED AvahiLookupResultFlags
661
flags,
662
void* userdata) {
663
mandos_context *mc = userdata;
552
664
assert(r); /* Spurious warning */
553
665
554
666
/* Called whenever a service has been resolved successfully or
557
669
switch (event) {
558
670
default:
559
671
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)));
672
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
673
" of type '%s' in domain '%s': %s\n", name, type, domain,
674
avahi_strerror(avahi_server_errno(mc->server)));
563
675
break;
564
676
565
677
case AVAHI_RESOLVER_FOUND:
567
679
char ip[AVAHI_ADDRESS_STR_MAX];
568
680
avahi_address_snprint(ip, sizeof(ip), address);
569
681
if(debug){
570
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
571
" port %d\n", name, host_name, ip, port);
682
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
683
PRIu16 ") on port %d\n", name, host_name, ip,
684
interface, port);
572
685
}
573
int ret = start_mandos_communication(ip, port, interface);
686
int ret = start_mandos_communication(ip, port, interface, mc);
574
687
if (ret == 0){
575
exit(EXIT_SUCCESS);
688
avahi_simple_poll_quit(mc->simple_poll);
576
689
}
577
690
}
578
691
}
579
692
avahi_s_service_resolver_free(r);
580
693
}
581
694
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;
695
static void browse_callback( AvahiSServiceBrowser *b,
696
AvahiIfIndex interface,
697
AvahiProtocol protocol,
698
AvahiBrowserEvent event,
699
const char *name,
700
const char *type,
701
const char *domain,
702
AVAHI_GCC_UNUSED AvahiLookupResultFlags
703
flags,
704
void* userdata) {
705
mandos_context *mc = userdata;
706
assert(b); /* Spurious warning */
707
708
/* Called whenever a new services becomes available on the LAN or
709
is removed from the LAN */
710
711
switch (event) {
712
default:
713
case AVAHI_BROWSER_FAILURE:
714
715
fprintf(stderr, "(Avahi browser) %s\n",
716
avahi_strerror(avahi_server_errno(mc->server)));
717
avahi_simple_poll_quit(mc->simple_poll);
718
return;
719
720
case AVAHI_BROWSER_NEW:
721
/* We ignore the returned Avahi resolver object. In the callback
722
function we free it. If the Avahi server is terminated before
723
the callback function is called the Avahi server will free the
724
resolver for us. */
725
726
if (!(avahi_s_service_resolver_new(mc->server, interface,
727
protocol, name, type, domain,
728
AVAHI_PROTO_INET6, 0,
729
resolve_callback, mc)))
730
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
731
name, avahi_strerror(avahi_server_errno(mc->server)));
732
break;
733
734
case AVAHI_BROWSER_REMOVE:
735
break;
736
737
case AVAHI_BROWSER_ALL_FOR_NOW:
738
case AVAHI_BROWSER_CACHE_EXHAUSTED:
739
if(debug){
740
fprintf(stderr, "No Mandos server found, still searching...\n");
628
741
}
742
break;
743
}
629
744
}
630
745
631
746
/* Combines file name and path and returns the malloced new
632
747
string. some sane checks could/should be added */
633
static const char *combinepath(const char *first, const char *second){
634
size_t f_len = strlen(first);
635
size_t s_len = strlen(second);
636
char *tmp = malloc(f_len + s_len + 2);
637
if (tmp == NULL){
748
static char *combinepath(const char *first, const char *second){
749
char *tmp;
750
int ret = asprintf(&tmp, "%s/%s", first, second);
751
if(ret < 0){
638
752
return NULL;
639
753
}
640
if(f_len > 0){
641
memcpy(tmp, first, f_len);
642
}
643
tmp[f_len] = '/';
644
if(s_len > 0){
645
memcpy(tmp + f_len + 1, second, s_len);
646
}
647
tmp[f_len + 1 + s_len] = '\0';
648
754
return tmp;
649
755
}
650
756
651
757
652
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
653
AvahiServerConfig config;
758
int main(int argc, char *argv[]){
654
759
AvahiSServiceBrowser *sb = NULL;
655
760
int error;
656
761
int ret;
657
int returncode = EXIT_SUCCESS;
658
const char *interface = NULL;
762
int exitcode = EXIT_SUCCESS;
763
const char *interface = "eth0";
764
struct ifreq network;
765
int sd;
766
uid_t uid;
767
gid_t gid;
768
char *connect_to = NULL;
659
769
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
660
char *connect_to = NULL;
661
662
while (true){
663
static struct option long_options[] = {
664
{"debug", no_argument, (int *)&debug, 1},
665
{"connect", required_argument, 0, 'C'},
666
{"interface", required_argument, 0, 'i'},
667
{"certdir", required_argument, 0, 'd'},
668
{"certkey", required_argument, 0, 'c'},
669
{"certfile", required_argument, 0, 'k'},
670
{0, 0, 0, 0} };
671
672
int option_index = 0;
673
ret = getopt_long (argc, argv, "i:", long_options,
674
&option_index);
675
676
if (ret == -1){
677
break;
678
}
679
680
switch(ret){
681
case 0:
682
break;
683
case 'i':
684
interface = optarg;
685
break;
686
case 'C':
687
connect_to = optarg;
688
break;
689
case 'd':
690
certdir = optarg;
691
break;
692
case 'c':
693
certfile = optarg;
694
break;
695
case 'k':
696
certkey = optarg;
697
break;
698
default:
699
exit(EXIT_FAILURE);
700
}
701
}
702
703
certfile = combinepath(certdir, certfile);
704
if (certfile == NULL){
705
perror("combinepath");
706
goto exit;
707
}
708
709
if(interface != NULL){
710
if_index = (AvahiIfIndex) if_nametoindex(interface);
711
if(if_index == 0){
712
fprintf(stderr, "No such interface: \"%s\"\n", interface);
713
exit(EXIT_FAILURE);
714
}
770
char *pubkeyfilename = NULL;
771
char *seckeyfilename = NULL;
772
const char *pubkeyname = "pubkey.txt";
773
const char *seckeyname = "seckey.txt";
774
mandos_context mc = { .simple_poll = NULL, .server = NULL,
775
.dh_bits = 1024, .priority = "SECURE256"};
776
bool gnutls_initalized = false;
777
778
{
779
struct argp_option options[] = {
780
{ .name = "debug", .key = 128,
781
.doc = "Debug mode", .group = 3 },
782
{ .name = "connect", .key = 'c',
783
.arg = "IP",
784
.doc = "Connect directly to a sepcified mandos server",
785
.group = 1 },
786
{ .name = "interface", .key = 'i',
787
.arg = "INTERFACE",
788
.doc = "Interface that Avahi will conntect through",
789
.group = 1 },
790
{ .name = "keydir", .key = 'd',
791
.arg = "KEYDIR",
792
.doc = "Directory where the openpgp keyring is",
793
.group = 1 },
794
{ .name = "seckey", .key = 's',
795
.arg = "SECKEY",
796
.doc = "Secret openpgp key for gnutls authentication",
797
.group = 1 },
798
{ .name = "pubkey", .key = 'p',
799
.arg = "PUBKEY",
800
.doc = "Public openpgp key for gnutls authentication",
801
.group = 2 },
802
{ .name = "dh-bits", .key = 129,
803
.arg = "BITS",
804
.doc = "dh-bits to use in gnutls communication",
805
.group = 2 },
806
{ .name = "priority", .key = 130,
807
.arg = "PRIORITY",
808
.doc = "GNUTLS priority", .group = 1 },
809
{ .name = NULL }
810
};
811
812
813
error_t parse_opt (int key, char *arg,
814
struct argp_state *state) {
815
/* Get the INPUT argument from `argp_parse', which we know is
816
a pointer to our plugin list pointer. */
817
switch (key) {
818
case 128:
819
debug = true;
820
break;
821
case 'c':
822
connect_to = arg;
823
break;
824
case 'i':
825
interface = arg;
826
break;
827
case 'd':
828
keydir = arg;
829
break;
830
case 's':
831
seckeyname = arg;
832
break;
833
case 'p':
834
pubkeyname = arg;
835
break;
836
case 129:
837
errno = 0;
838
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
839
if (errno){
840
perror("strtol");
841
exit(EXIT_FAILURE);
842
}
843
break;
844
case 130:
845
mc.priority = arg;
846
break;
847
case ARGP_KEY_ARG:
848
argp_usage (state);
849
case ARGP_KEY_END:
850
break;
851
default:
852
return ARGP_ERR_UNKNOWN;
853
}
854
return 0;
855
}
856
857
struct argp argp = { .options = options, .parser = parse_opt,
858
.args_doc = "",
859
.doc = "Mandos client -- Get and decrypt"
860
" passwords from mandos server" };
861
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
862
if (ret == ARGP_ERR_UNKNOWN){
863
fprintf(stderr, "Unknown error while parsing arguments\n");
864
exitcode = EXIT_FAILURE;
865
goto end;
866
}
867
}
868
869
pubkeyfilename = combinepath(keydir, pubkeyname);
870
if (pubkeyfilename == NULL){
871
perror("combinepath");
872
exitcode = EXIT_FAILURE;
873
goto end;
874
}
875
876
seckeyfilename = combinepath(keydir, seckeyname);
877
if (seckeyfilename == NULL){
878
perror("combinepath");
879
exitcode = EXIT_FAILURE;
880
goto end;
881
}
882
883
ret = init_gnutls_global(&mc, pubkeyfilename, seckeyfilename);
884
if (ret == -1){
885
fprintf(stderr, "init_gnutls_global failed\n");
886
exitcode = EXIT_FAILURE;
887
goto end;
888
} else {
889
gnutls_initalized = true;
890
}
891
892
/* If the interface is down, bring it up */
893
{
894
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
895
if(sd < 0) {
896
perror("socket");
897
exitcode = EXIT_FAILURE;
898
goto end;
899
}
900
strcpy(network.ifr_name, interface); /* Spurious warning */
901
ret = ioctl(sd, SIOCGIFFLAGS, &network);
902
if(ret == -1){
903
perror("ioctl SIOCGIFFLAGS");
904
exitcode = EXIT_FAILURE;
905
goto end;
906
}
907
if((network.ifr_flags & IFF_UP) == 0){
908
network.ifr_flags |= IFF_UP;
909
ret = ioctl(sd, SIOCSIFFLAGS, &network);
910
if(ret == -1){
911
perror("ioctl SIOCSIFFLAGS");
912
exitcode = EXIT_FAILURE;
913
goto end;
914
}
915
}
916
close(sd);
917
}
918
919
uid = getuid();
920
gid = getgid();
921
922
ret = setuid(uid);
923
if (ret == -1){
924
perror("setuid");
925
}
926
927
setgid(gid);
928
if (ret == -1){
929
perror("setgid");
930
}
931
932
if_index = (AvahiIfIndex) if_nametoindex(interface);
933
if(if_index == 0){
934
fprintf(stderr, "No such interface: \"%s\"\n", interface);
935
exit(EXIT_FAILURE);
715
936
}
716
937
717
938
if(connect_to != NULL){
720
941
char *address = strrchr(connect_to, ':');
721
942
if(address == NULL){
722
943
fprintf(stderr, "No colon in address\n");
723
exit(EXIT_FAILURE);
944
exitcode = EXIT_FAILURE;
945
goto end;
724
946
}
725
947
errno = 0;
726
948
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
727
949
if(errno){
728
950
perror("Bad port number");
729
exit(EXIT_FAILURE);
951
exitcode = EXIT_FAILURE;
952
goto end;
730
953
}
731
954
*address = '\0';
732
955
address = connect_to;
733
ret = start_mandos_communication(address, port, if_index);
956
ret = start_mandos_communication(address, port, if_index, &mc);
734
957
if(ret < 0){
735
exit(EXIT_FAILURE);
958
exitcode = EXIT_FAILURE;
736
959
} else {
737
exit(EXIT_SUCCESS);
960
exitcode = EXIT_SUCCESS;
738
961
}
739
}
740
741
certkey = combinepath(certdir, certkey);
742
if (certkey == NULL){
743
perror("combinepath");
744
goto exit;
962
goto end;
745
963
}
746
964
747
965
if (not debug){
748
966
avahi_set_log_function(empty_log);
749
967
}
750
968
751
/* Initialize the psuedo-RNG */
969
/* Initialize the pseudo-RNG for Avahi */
752
970
srand((unsigned int) time(NULL));
753
754
/* Allocate main loop object */
755
if (!(simple_poll = avahi_simple_poll_new())) {
756
fprintf(stderr, "Failed to create simple poll object.\n");
757
758
goto exit;
759
}
760
761
/* Do not publish any local records */
762
avahi_server_config_init(&config);
763
config.publish_hinfo = 0;
764
config.publish_addresses = 0;
765
config.publish_workstation = 0;
766
config.publish_domain = 0;
767
768
/* Allocate a new server */
769
server = avahi_server_new(avahi_simple_poll_get(simple_poll),
770
&config, NULL, NULL, &error);
771
772
/* Free the configuration data */
773
avahi_server_config_free(&config);
774
775
/* Check if creating the server object succeeded */
776
if (!server) {
777
fprintf(stderr, "Failed to create server: %s\n",
971
972
/* Allocate main Avahi loop object */
973
mc.simple_poll = avahi_simple_poll_new();
974
if (mc.simple_poll == NULL) {
975
fprintf(stderr, "Avahi: Failed to create simple poll"
976
" object.\n");
977
exitcode = EXIT_FAILURE;
978
goto end;
979
}
980
981
{
982
AvahiServerConfig config;
983
/* Do not publish any local Zeroconf records */
984
avahi_server_config_init(&config);
985
config.publish_hinfo = 0;
986
config.publish_addresses = 0;
987
config.publish_workstation = 0;
988
config.publish_domain = 0;
989
990
/* Allocate a new server */
991
mc.server = avahi_server_new(avahi_simple_poll_get
992
(mc.simple_poll), &config, NULL,
993
NULL, &error);
994
995
/* Free the Avahi configuration data */
996
avahi_server_config_free(&config);
997
}
998
999
/* Check if creating the Avahi server object succeeded */
1000
if (mc.server == NULL) {
1001
fprintf(stderr, "Failed to create Avahi server: %s\n",
778
1002
avahi_strerror(error));
779
returncode = EXIT_FAILURE;
780
goto exit;
1003
exitcode = EXIT_FAILURE;
1004
goto end;
781
1005
}
782
1006
783
/* Create the service browser */
784
sb = avahi_s_service_browser_new(server, if_index,
1007
/* Create the Avahi service browser */
1008
sb = avahi_s_service_browser_new(mc.server, if_index,
785
1009
AVAHI_PROTO_INET6,
786
1010
"_mandos._tcp", NULL, 0,
787
browse_callback, server);
788
if (!sb) {
1011
browse_callback, &mc);
1012
if (sb == NULL) {
789
1013
fprintf(stderr, "Failed to create service browser: %s\n",
790
avahi_strerror(avahi_server_errno(server)));
791
returncode = EXIT_FAILURE;
792
goto exit;
1014
avahi_strerror(avahi_server_errno(mc.server)));
1015
exitcode = EXIT_FAILURE;
1016
goto end;
793
1017
}
794
1018
795
1019
/* Run the main loop */
796
1020
797
1021
if (debug){
798
fprintf(stderr, "Starting avahi loop search\n");
1022
fprintf(stderr, "Starting Avahi loop search\n");
799
1023
}
800
1024
801
avahi_simple_poll_loop(simple_poll);
1025
avahi_simple_poll_loop(mc.simple_poll);
802
1026
803
exit:
1027
end:
804
1028
805
1029
if (debug){
806
1030
fprintf(stderr, "%s exiting\n", argv[0]);
807
1031
}
808
1032
809
1033
/* Cleanup things */
810
if (sb)
1034
if (sb != NULL)
811
1035
avahi_s_service_browser_free(sb);
812
1036
813
if (server)
814
avahi_server_free(server);
815
816
if (simple_poll)
817
avahi_simple_poll_free(simple_poll);
818
free(certfile);
819
free(certkey);
1037
if (mc.server != NULL)
1038
avahi_server_free(mc.server);
1039
1040
if (mc.simple_poll != NULL)
1041
avahi_simple_poll_free(mc.simple_poll);
1042
free(pubkeyfilename);
1043
free(seckeyfilename);
1044
1045
if (gnutls_initalized){
1046
gnutls_certificate_free_credentials(mc.cred);
1047
gnutls_global_deinit ();
1048
}
820
1049
821
return returncode;
1050
return exitcode;
822
1051
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0