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- Committer: Björn Påhlsson
- Date: 2008-08-03 16:08:20 UTC
- mto: (24.1.154 mandos) (237.4.3 mandos-release)
- mto: This revision was merged to the branch mainline in revision 41.
- Revision ID: belorn@braxen-20080803160820-0tw2n3ufebh51e3i
Added support for protocol version handling
- files added:
- ca.pem
- files removed:
- .bzrignore
- 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
32
32
#define _LARGEFILE_SOURCE
33
33
#define _FILE_OFFSET_BITS 64
34
34
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_* */
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY() */
36
37
#include <stdio.h>
38
#include <assert.h>
39
#include <stdlib.h>
40
#include <time.h>
41
#include <net/if.h> /* if_nametoindex */
42
#include <sys/ioctl.h> // ioctl, ifreq, SIOCGIFFLAGS, IFF_UP, SIOCSIFFLAGS
43
#include <net/if.h> // ioctl, ifreq, SIOCGIFFLAGS, IFF_UP, SIOCSIFFLAGS
44
76
45
#include <avahi-core/core.h>
77
46
#include <avahi-core/lookup.h>
78
47
#include <avahi-core/log.h>
80
49
#include <avahi-common/malloc.h>
81
50
#include <avahi-common/error.h>
82
51
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_* */
52
//mandos client part
53
#include <sys/types.h> /* socket(), inet_pton() */
54
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
55
struct in6_addr, inet_pton() */
56
#include <gnutls/gnutls.h> /* All GnuTLS stuff */
57
#include <gnutls/openpgp.h> /* GnuTLS with openpgp stuff */
58
59
#include <unistd.h> /* close() */
60
#include <netinet/in.h>
61
#include <stdbool.h> /* true */
62
#include <string.h> /* memset */
63
#include <arpa/inet.h> /* inet_pton() */
64
#include <iso646.h> /* not */
65
66
// gpgme
67
#include <errno.h> /* perror() */
68
#include <gpgme.h>
69
70
// getopt long
71
#include <getopt.h>
98
72
99
73
#define BUFFER_SIZE 256
74
#define DH_BITS 1024
75
76
static const char *certdir = "/conf/conf.d/mandos";
77
static const char *certfile = "openpgp-client.txt";
78
static const char *certkey = "openpgp-client-key.txt";
100
79
101
80
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
107
/* Used for passing in values through the Avahi callback functions */
81
82
const char mandos_protocol_version[] = "1";
83
108
84
typedef struct {
109
85
AvahiSimplePoll *simple_poll;
110
86
AvahiServer *server;
111
87
gnutls_certificate_credentials_t cred;
112
88
unsigned int dh_bits;
113
gnutls_dh_params_t dh_params;
114
89
const char *priority;
115
90
} mandos_context;
116
91
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,
92
size_t adjustbuffer(char *buffer, size_t buffer_length,
123
93
size_t buffer_capacity){
124
94
if (buffer_length + BUFFER_SIZE > buffer_capacity){
125
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
95
buffer = realloc(buffer, buffer_capacity + BUFFER_SIZE);
126
96
if (buffer == NULL){
127
97
return 0;
128
98
}
131
101
return buffer_capacity;
132
102
}
133
103
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,
104
static ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
105
char **new_packet,
141
106
const char *homedir){
142
107
gpgme_data_t dh_crypto, dh_plain;
143
108
gpgme_ctx_t ctx;
144
109
gpgme_error_t rc;
145
110
ssize_t ret;
146
size_t plaintext_capacity = 0;
147
ssize_t plaintext_length = 0;
111
size_t new_packet_capacity = 0;
112
ssize_t new_packet_length = 0;
148
113
gpgme_engine_info_t engine_info;
149
114
150
115
if (debug){
151
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
116
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
152
117
}
153
118
154
119
/* Init GPGME */
160
125
return -1;
161
126
}
162
127
163
/* Set GPGME home directory for the OpenPGP engine only */
128
/* Set GPGME home directory */
164
129
rc = gpgme_get_engine_info (&engine_info);
165
130
if (rc != GPG_ERR_NO_ERROR){
166
131
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
176
141
engine_info = engine_info->next;
177
142
}
178
143
if(engine_info == NULL){
179
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
144
fprintf(stderr, "Could not set home dir to %s\n", homedir);
180
145
return -1;
181
146
}
182
147
183
/* Create new GPGME data buffer from memory cryptotext */
184
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
185
0);
148
/* Create new GPGME data buffer from packet buffer */
149
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
186
150
if (rc != GPG_ERR_NO_ERROR){
187
151
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
188
152
gpgme_strsource(rc), gpgme_strerror(rc));
194
158
if (rc != GPG_ERR_NO_ERROR){
195
159
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
196
160
gpgme_strsource(rc), gpgme_strerror(rc));
197
gpgme_data_release(dh_crypto);
198
161
return -1;
199
162
}
200
163
203
166
if (rc != GPG_ERR_NO_ERROR){
204
167
fprintf(stderr, "bad gpgme_new: %s: %s\n",
205
168
gpgme_strsource(rc), gpgme_strerror(rc));
206
plaintext_length = -1;
207
goto decrypt_end;
169
return -1;
208
170
}
209
171
210
/* Decrypt data from the cryptotext data buffer to the plaintext
211
data buffer */
172
/* Decrypt data from the FILE pointer to the plaintext data
173
buffer */
212
174
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
213
175
if (rc != GPG_ERR_NO_ERROR){
214
176
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
215
177
gpgme_strsource(rc), gpgme_strerror(rc));
216
plaintext_length = -1;
217
if (debug){
218
gpgme_decrypt_result_t result;
219
result = gpgme_op_decrypt_result(ctx);
220
if (result == NULL){
221
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
222
} else {
223
fprintf(stderr, "Unsupported algorithm: %s\n",
224
result->unsupported_algorithm);
225
fprintf(stderr, "Wrong key usage: %u\n",
226
result->wrong_key_usage);
227
if(result->file_name != NULL){
228
fprintf(stderr, "File name: %s\n", result->file_name);
229
}
230
gpgme_recipient_t recipient;
231
recipient = result->recipients;
232
if(recipient){
233
while(recipient != NULL){
234
fprintf(stderr, "Public key algorithm: %s\n",
235
gpgme_pubkey_algo_name(recipient->pubkey_algo));
236
fprintf(stderr, "Key ID: %s\n", recipient->keyid);
237
fprintf(stderr, "Secret key available: %s\n",
238
recipient->status == GPG_ERR_NO_SECKEY
239
? "No" : "Yes");
240
recipient = recipient->next;
241
}
178
return -1;
179
}
180
181
if(debug){
182
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
183
}
184
185
if (debug){
186
gpgme_decrypt_result_t result;
187
result = gpgme_op_decrypt_result(ctx);
188
if (result == NULL){
189
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
190
} else {
191
fprintf(stderr, "Unsupported algorithm: %s\n",
192
result->unsupported_algorithm);
193
fprintf(stderr, "Wrong key usage: %d\n",
194
result->wrong_key_usage);
195
if(result->file_name != NULL){
196
fprintf(stderr, "File name: %s\n", result->file_name);
197
}
198
gpgme_recipient_t recipient;
199
recipient = result->recipients;
200
if(recipient){
201
while(recipient != NULL){
202
fprintf(stderr, "Public key algorithm: %s\n",
203
gpgme_pubkey_algo_name(recipient->pubkey_algo));
204
fprintf(stderr, "Key ID: %s\n", recipient->keyid);
205
fprintf(stderr, "Secret key available: %s\n",
206
recipient->status == GPG_ERR_NO_SECKEY
207
? "No" : "Yes");
208
recipient = recipient->next;
242
209
}
243
210
}
244
211
}
245
goto decrypt_end;
246
212
}
247
213
248
if(debug){
249
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
250
}
214
/* Delete the GPGME FILE pointer cryptotext data buffer */
215
gpgme_data_release(dh_crypto);
251
216
252
217
/* Seek back to the beginning of the GPGME plaintext data buffer */
253
218
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
254
219
perror("pgpme_data_seek");
255
plaintext_length = -1;
256
goto decrypt_end;
257
220
}
258
221
259
*plaintext = NULL;
222
*new_packet = 0;
260
223
while(true){
261
plaintext_capacity = adjustbuffer(plaintext,
262
(size_t)plaintext_length,
263
plaintext_capacity);
264
if (plaintext_capacity == 0){
224
new_packet_capacity = adjustbuffer(*new_packet, new_packet_length,
225
new_packet_capacity);
226
if (new_packet_capacity == 0){
265
227
perror("adjustbuffer");
266
plaintext_length = -1;
267
goto decrypt_end;
228
return -1;
229
}
230
new_packet_capacity += BUFFER_SIZE;
268
231
}
269
232
270
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
233
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
271
234
BUFFER_SIZE);
272
235
/* Print the data, if any */
273
236
if (ret == 0){
274
/* EOF */
275
237
break;
276
238
}
277
239
if(ret < 0){
278
240
perror("gpgme_data_read");
279
plaintext_length = -1;
280
goto decrypt_end;
241
return -1;
281
242
}
282
plaintext_length += ret;
243
new_packet_length += ret;
283
244
}
284
245
285
if(debug){
286
fprintf(stderr, "Decrypted password is: ");
287
for(ssize_t i = 0; i < plaintext_length; i++){
288
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
289
}
290
fprintf(stderr, "\n");
291
}
292
293
decrypt_end:
294
295
/* Delete the GPGME cryptotext data buffer */
296
gpgme_data_release(dh_crypto);
246
/* FIXME: check characters before printing to screen so to not print
247
terminal control characters */
248
/* if(debug){ */
249
/* fprintf(stderr, "decrypted password is: "); */
250
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
251
/* fprintf(stderr, "\n"); */
252
/* } */
297
253
298
254
/* Delete the GPGME plaintext data buffer */
299
255
gpgme_data_release(dh_plain);
300
return plaintext_length;
256
return new_packet_length;
301
257
}
302
258
303
259
static const char * safer_gnutls_strerror (int value) {
304
const char *ret = gnutls_strerror (value); /* Spurious warning */
260
const char *ret = gnutls_strerror (value);
305
261
if (ret == NULL)
306
262
ret = "(unknown)";
307
263
return ret;
308
264
}
309
265
310
/* GnuTLS log function callback */
311
266
static void debuggnutls(__attribute__((unused)) int level,
312
267
const char* string){
313
fprintf(stderr, "GnuTLS: %s", string);
268
fprintf(stderr, "%s", string);
314
269
}
315
270
316
static int init_gnutls_global(mandos_context *mc,
317
const char *pubkeyfilename,
318
const char *seckeyfilename){
271
static int initgnutls(mandos_context *mc){
272
const char *err;
319
273
int ret;
320
274
321
275
if(debug){
322
276
fprintf(stderr, "Initializing GnuTLS\n");
323
277
}
324
325
ret = gnutls_global_init();
326
if (ret != GNUTLS_E_SUCCESS) {
327
fprintf (stderr, "GnuTLS global_init: %s\n",
328
safer_gnutls_strerror(ret));
278
279
if ((ret = gnutls_global_init ())
280
!= GNUTLS_E_SUCCESS) {
281
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
329
282
return -1;
330
283
}
331
284
332
285
if (debug){
333
/* "Use a log level over 10 to enable all debugging options."
334
* - GnuTLS manual
335
*/
336
286
gnutls_global_set_log_level(11);
337
287
gnutls_global_set_log_function(debuggnutls);
338
288
}
339
289
340
/* OpenPGP credentials */
341
gnutls_certificate_allocate_credentials(&mc->cred);
342
if (ret != GNUTLS_E_SUCCESS){
343
fprintf (stderr, "GnuTLS memory error: %s\n", /* Spurious
344
warning */
290
/* openpgp credentials */
291
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
292
!= GNUTLS_E_SUCCESS) {
293
fprintf (stderr, "memory error: %s\n",
345
294
safer_gnutls_strerror(ret));
346
gnutls_global_deinit ();
347
295
return -1;
348
296
}
349
297
350
298
if(debug){
351
299
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
352
" and keyfile %s as GnuTLS credentials\n", pubkeyfilename,
353
seckeyfilename);
300
" and keyfile %s as GnuTLS credentials\n", certfile,
301
certkey);
354
302
}
355
303
356
304
ret = gnutls_certificate_set_openpgp_key_file
357
(mc->cred, pubkeyfilename, seckeyfilename,
358
GNUTLS_OPENPGP_FMT_BASE64);
305
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
359
306
if (ret != GNUTLS_E_SUCCESS) {
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",
307
fprintf
308
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
309
" '%s')\n",
310
ret, certfile, certkey);
311
fprintf(stdout, "The Error is: %s\n",
364
312
safer_gnutls_strerror(ret));
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){
313
return -1;
314
}
315
316
//GnuTLS server initialization
317
if ((ret = gnutls_dh_params_init (&es->dh_params))
318
!= GNUTLS_E_SUCCESS) {
319
fprintf (stderr, "Error in dh parameter initialization: %s\n",
320
safer_gnutls_strerror(ret));
321
return -1;
322
}
323
324
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
325
!= GNUTLS_E_SUCCESS) {
326
fprintf (stderr, "Error in prime generation: %s\n",
327
safer_gnutls_strerror(ret));
328
return -1;
329
}
330
331
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
332
333
// GnuTLS session creation
334
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
335
!= GNUTLS_E_SUCCESS){
400
336
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
401
337
safer_gnutls_strerror(ret));
402
338
}
403
339
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
}
340
if ((ret = gnutls_priority_set_direct (es->session, mc->priority, &err))
341
!= GNUTLS_E_SUCCESS) {
342
fprintf(stderr, "Syntax error at: %s\n", err);
343
fprintf(stderr, "GnuTLS error: %s\n",
344
safer_gnutls_strerror(ret));
345
return -1;
414
346
}
415
347
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",
348
if ((ret = gnutls_credentials_set
349
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
350
!= GNUTLS_E_SUCCESS) {
351
fprintf(stderr, "Error setting a credentials set: %s\n",
420
352
safer_gnutls_strerror(ret));
421
gnutls_deinit (*session);
422
353
return -1;
423
354
}
424
355
425
356
/* ignore client certificate if any. */
426
gnutls_certificate_server_set_request (*session,
357
gnutls_certificate_server_set_request (es->session,
427
358
GNUTLS_CERT_IGNORE);
428
359
429
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
360
gnutls_dh_set_prime_bits (es->session, DH_BITS);
430
361
431
362
return 0;
432
363
}
433
364
434
/* Avahi log function callback */
435
365
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
436
366
__attribute__((unused)) const char *txt){}
437
367
438
/* Called when a Mandos server is found */
439
368
static int start_mandos_communication(const char *ip, uint16_t port,
440
369
AvahiIfIndex if_index,
441
370
mandos_context *mc){
442
371
int ret, tcp_sd;
443
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
372
struct sockaddr_in6 to;
373
encrypted_session es;
444
374
char *buffer = NULL;
445
375
char *decrypted_buffer;
446
376
size_t buffer_length = 0;
449
379
size_t written;
450
380
int retval = 0;
451
381
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
}
458
382
459
383
if(debug){
460
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
461
"\n", ip, port);
384
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
385
ip, port);
462
386
}
463
387
464
388
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
469
393
470
394
if(debug){
471
395
if(if_indextoname((unsigned int)if_index, interface) == NULL){
472
perror("if_indextoname");
396
if(debug){
397
perror("if_indextoname");
398
}
473
399
return -1;
474
400
}
401
475
402
fprintf(stderr, "Binding to interface %s\n", interface);
476
403
}
477
404
478
memset(&to, 0, sizeof(to));
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);
405
memset(&to,0,sizeof(to)); /* Spurious warning */
406
to.sin6_family = AF_INET6;
407
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
483
408
if (ret < 0 ){
484
409
perror("inet_pton");
485
410
return -1;
486
}
411
}
487
412
if(ret == 0){
488
413
fprintf(stderr, "Bad address: %s\n", ip);
489
414
return -1;
490
415
}
491
to.in6.sin6_port = htons(port); /* Spurious warning */
416
to.sin6_port = htons(port); /* Spurious warning */
492
417
493
to.in6.sin6_scope_id = (uint32_t)if_index;
418
to.sin6_scope_id = (uint32_t)if_index;
494
419
495
420
if(debug){
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
}
421
fprintf(stderr, "Connection to: %s, port %d\n", ip, port);
422
/* char addrstr[INET6_ADDRSTRLEN]; */
423
/* if(inet_ntop(to.sin6_family, &(to.sin6_addr), addrstr, */
424
/* sizeof(addrstr)) == NULL){ */
425
/* perror("inet_ntop"); */
426
/* } else { */
427
/* fprintf(stderr, "Really connecting to: %s, port %d\n", */
428
/* addrstr, ntohs(to.sin6_port)); */
429
/* } */
507
430
}
508
431
509
ret = connect(tcp_sd, &to.in, sizeof(to));
432
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
510
433
if (ret < 0){
511
434
perror("connect");
512
435
return -1;
513
436
}
514
437
515
const char *out = mandos_protocol_version;
438
char *out = mandos_protocol_version;
516
439
written = 0;
517
440
while (true){
518
441
size_t out_size = strlen(out);
521
444
if (ret == -1){
522
445
perror("write");
523
446
retval = -1;
524
goto mandos_end;
447
goto end;
525
448
}
526
written += (size_t)ret;
449
written += ret;
527
450
if(written < out_size){
528
451
continue;
529
452
} else {
536
459
}
537
460
}
538
461
462
ret = initgnutls (&es);
463
if (ret != 0){
464
retval = -1;
465
return -1;
466
}
467
468
gnutls_transport_set_ptr (es.session,
469
(gnutls_transport_ptr_t) tcp_sd);
470
539
471
if(debug){
540
472
fprintf(stderr, "Establishing TLS session with %s\n", ip);
541
473
}
542
474
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);
475
ret = gnutls_handshake (es.session);
548
476
549
477
if (ret != GNUTLS_E_SUCCESS){
550
478
if(debug){
551
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
479
fprintf(stderr, "\n*** Handshake failed ***\n");
552
480
gnutls_perror (ret);
553
481
}
554
482
retval = -1;
555
goto mandos_end;
483
goto exit;
556
484
}
557
485
558
/* Read OpenPGP packet that contains the wanted password */
486
//Retrieve OpenPGP packet that contains the wanted password
559
487
560
488
if(debug){
561
489
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
563
491
}
564
492
565
493
while(true){
566
buffer_capacity = adjustbuffer(&buffer, buffer_length,
567
buffer_capacity);
494
buffer_capacity = adjustbuffer(buffer, buffer_length, buffer_capacity);
568
495
if (buffer_capacity == 0){
569
496
perror("adjustbuffer");
570
497
retval = -1;
571
goto mandos_end;
498
goto exit;
572
499
}
573
500
574
ret = gnutls_record_recv(session, buffer+buffer_length,
575
BUFFER_SIZE);
501
ret = gnutls_record_recv
502
(es.session, buffer+buffer_length, BUFFER_SIZE);
576
503
if (ret == 0){
577
504
break;
578
505
}
582
509
case GNUTLS_E_AGAIN:
583
510
break;
584
511
case GNUTLS_E_REHANDSHAKE:
585
do{
586
ret = gnutls_handshake (session);
587
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
512
ret = gnutls_handshake (es.session);
588
513
if (ret < 0){
589
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
514
fprintf(stderr, "\n*** Handshake failed ***\n");
590
515
gnutls_perror (ret);
591
516
retval = -1;
592
goto mandos_end;
517
goto exit;
593
518
}
594
519
break;
595
520
default:
596
521
fprintf(stderr, "Unknown error while reading data from"
597
" encrypted session with Mandos server\n");
522
" encrypted session with mandos server\n");
598
523
retval = -1;
599
gnutls_bye (session, GNUTLS_SHUT_RDWR);
600
goto mandos_end;
524
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
525
goto exit;
601
526
}
602
527
} else {
603
528
buffer_length += (size_t) ret;
604
529
}
605
530
}
606
531
607
if(debug){
608
fprintf(stderr, "Closing TLS session\n");
609
}
610
611
gnutls_bye (session, GNUTLS_SHUT_RDWR);
612
613
532
if (buffer_length > 0){
614
533
decrypted_buffer_size = pgp_packet_decrypt(buffer,
615
534
buffer_length,
616
535
&decrypted_buffer,
617
keydir);
536
certdir);
618
537
if (decrypted_buffer_size >= 0){
619
538
written = 0;
620
539
while(written < (size_t) decrypted_buffer_size){
635
554
} else {
636
555
retval = -1;
637
556
}
638
} else {
639
retval = -1;
640
}
641
642
/* Shutdown procedure */
643
644
mandos_end:
557
}
558
559
//shutdown procedure
560
561
if(debug){
562
fprintf(stderr, "Closing TLS session\n");
563
}
564
645
565
free(buffer);
566
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
567
exit:
646
568
close(tcp_sd);
647
gnutls_deinit (session);
569
gnutls_deinit (es.session);
570
gnutls_certificate_free_credentials (es.cred);
571
gnutls_global_deinit ();
648
572
return retval;
649
573
}
650
574
651
static void resolve_callback(AvahiSServiceResolver *r,
652
AvahiIfIndex interface,
653
AVAHI_GCC_UNUSED AvahiProtocol protocol,
654
AvahiResolverEvent event,
655
const char *name,
656
const char *type,
657
const char *domain,
658
const char *host_name,
659
const AvahiAddress *address,
660
uint16_t port,
661
AVAHI_GCC_UNUSED AvahiStringList *txt,
662
AVAHI_GCC_UNUSED AvahiLookupResultFlags
663
flags,
664
void* userdata) {
575
static void resolve_callback( AvahiSServiceResolver *r,
576
AvahiIfIndex interface,
577
AVAHI_GCC_UNUSED AvahiProtocol protocol,
578
AvahiResolverEvent event,
579
const char *name,
580
const char *type,
581
const char *domain,
582
const char *host_name,
583
const AvahiAddress *address,
584
uint16_t port,
585
AVAHI_GCC_UNUSED AvahiStringList *txt,
586
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
587
AVAHI_GCC_UNUSED void* userdata) {
665
588
mandos_context *mc = userdata;
666
assert(r);
589
assert(r); /* Spurious warning */
667
590
668
591
/* Called whenever a service has been resolved successfully or
669
592
timed out */
671
594
switch (event) {
672
595
default:
673
596
case AVAHI_RESOLVER_FAILURE:
674
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
675
" of type '%s' in domain '%s': %s\n", name, type, domain,
597
fprintf(stderr, "(Resolver) Failed to resolve service '%s' of"
598
" type '%s' in domain '%s': %s\n", name, type, domain,
676
599
avahi_strerror(avahi_server_errno(mc->server)));
677
600
break;
678
601
681
604
char ip[AVAHI_ADDRESS_STR_MAX];
682
605
avahi_address_snprint(ip, sizeof(ip), address);
683
606
if(debug){
684
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
685
PRIu16 ") on port %d\n", name, host_name, ip,
686
interface, port);
607
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
608
" port %d\n", name, host_name, ip, port);
687
609
}
688
610
int ret = start_mandos_communication(ip, port, interface, mc);
689
611
if (ret == 0){
690
avahi_simple_poll_quit(mc->simple_poll);
612
exit(EXIT_SUCCESS);
691
613
}
692
614
}
693
615
}
701
623
const char *name,
702
624
const char *type,
703
625
const char *domain,
704
AVAHI_GCC_UNUSED AvahiLookupResultFlags
705
flags,
626
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
706
627
void* userdata) {
707
628
mandos_context *mc = userdata;
708
assert(b);
629
assert(b); /* Spurious warning */
709
630
710
631
/* Called whenever a new services becomes available on the LAN or
711
632
is removed from the LAN */
713
634
switch (event) {
714
635
default:
715
636
case AVAHI_BROWSER_FAILURE:
716
717
fprintf(stderr, "(Avahi browser) %s\n",
637
638
fprintf(stderr, "(Browser) %s\n",
718
639
avahi_strerror(avahi_server_errno(mc->server)));
719
640
avahi_simple_poll_quit(mc->simple_poll);
720
641
return;
721
642
722
643
case AVAHI_BROWSER_NEW:
723
/* We ignore the returned Avahi resolver object. In the callback
724
function we free it. If the Avahi server is terminated before
725
the callback function is called the Avahi server will free the
726
resolver for us. */
727
728
if (!(avahi_s_service_resolver_new(mc->server, interface,
729
protocol, name, type, domain,
644
/* We ignore the returned resolver object. In the callback
645
function we free it. If the server is terminated before
646
the callback function is called the server will free
647
the resolver for us. */
648
649
if (!(avahi_s_service_resolver_new(mc->server, interface, protocol, name,
650
type, domain,
730
651
AVAHI_PROTO_INET6, 0,
731
652
resolve_callback, mc)))
732
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
733
name, avahi_strerror(avahi_server_errno(mc->server)));
653
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
654
avahi_strerror(avahi_server_errno(s)));
734
655
break;
735
656
736
657
case AVAHI_BROWSER_REMOVE:
737
658
break;
738
659
739
660
case AVAHI_BROWSER_ALL_FOR_NOW:
740
661
case AVAHI_BROWSER_CACHE_EXHAUSTED:
741
if(debug){
742
fprintf(stderr, "No Mandos server found, still searching...\n");
743
}
744
662
break;
745
663
}
746
664
}
747
665
748
666
/* Combines file name and path and returns the malloced new
749
667
string. some sane checks could/should be added */
750
static char *combinepath(const char *first, const char *second){
751
char *tmp;
752
int ret = asprintf(&tmp, "%s/%s", first, second);
753
if(ret < 0){
668
static const char *combinepath(const char *first, const char *second){
669
size_t f_len = strlen(first);
670
size_t s_len = strlen(second);
671
char *tmp = malloc(f_len + s_len + 2);
672
if (tmp == NULL){
754
673
return NULL;
755
674
}
675
if(f_len > 0){
676
memcpy(tmp, first, f_len);
677
}
678
tmp[f_len] = '/';
679
if(s_len > 0){
680
memcpy(tmp + f_len + 1, second, s_len);
681
}
682
tmp[f_len + 1 + s_len] = '\0';
756
683
return tmp;
757
684
}
758
685
759
686
760
int main(int argc, char *argv[]){
687
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
688
AvahiServerConfig config;
761
689
AvahiSServiceBrowser *sb = NULL;
762
690
int error;
763
691
int ret;
764
int exitcode = EXIT_SUCCESS;
692
int returncode = EXIT_SUCCESS;
765
693
const char *interface = "eth0";
766
694
struct ifreq network;
767
695
int sd;
768
uid_t uid;
769
gid_t gid;
770
696
char *connect_to = NULL;
771
697
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
772
char *pubkeyfilename = NULL;
773
char *seckeyfilename = NULL;
774
const char *pubkeyname = "pubkey.txt";
775
const char *seckeyname = "seckey.txt";
776
698
mandos_context mc = { .simple_poll = NULL, .server = NULL,
777
.dh_bits = 1024, .priority = "SECURE256"};
778
bool gnutls_initalized = false;
699
.dh_bits = 2048, .priority = "SECURE256"};
779
700
780
{
781
struct argp_option options[] = {
782
{ .name = "debug", .key = 128,
783
.doc = "Debug mode", .group = 3 },
784
{ .name = "connect", .key = 'c',
785
.arg = "IP",
786
.doc = "Connect directly to a sepcified mandos server",
787
.group = 1 },
788
{ .name = "interface", .key = 'i',
789
.arg = "INTERFACE",
790
.doc = "Interface that Avahi will conntect through",
791
.group = 1 },
792
{ .name = "keydir", .key = 'd',
793
.arg = "KEYDIR",
794
.doc = "Directory where the openpgp keyring is",
795
.group = 1 },
796
{ .name = "seckey", .key = 's',
797
.arg = "SECKEY",
798
.doc = "Secret openpgp key for gnutls authentication",
799
.group = 1 },
800
{ .name = "pubkey", .key = 'p',
801
.arg = "PUBKEY",
802
.doc = "Public openpgp key for gnutls authentication",
803
.group = 2 },
804
{ .name = "dh-bits", .key = 129,
805
.arg = "BITS",
806
.doc = "dh-bits to use in gnutls communication",
807
.group = 2 },
808
{ .name = "priority", .key = 130,
809
.arg = "PRIORITY",
810
.doc = "GNUTLS priority", .group = 1 },
811
{ .name = NULL }
812
};
813
814
815
error_t parse_opt (int key, char *arg,
816
struct argp_state *state) {
817
/* Get the INPUT argument from `argp_parse', which we know is
818
a pointer to our plugin list pointer. */
819
switch (key) {
820
case 128:
821
debug = true;
822
break;
823
case 'c':
824
connect_to = arg;
825
break;
826
case 'i':
827
interface = arg;
828
break;
829
case 'd':
830
keydir = arg;
831
break;
832
case 's':
833
seckeyname = arg;
834
break;
835
case 'p':
836
pubkeyname = arg;
837
break;
838
case 129:
701
while (true){
702
static struct option long_options[] = {
703
{"debug", no_argument, (int *)&debug, 1},
704
{"connect", required_argument, 0, 'C'},
705
{"interface", required_argument, 0, 'i'},
706
{"certdir", required_argument, 0, 'd'},
707
{"certkey", required_argument, 0, 'c'},
708
{"certfile", required_argument, 0, 'k'},
709
{"dh_bits", required_argument, 0, 'D'},
710
{"priority", required_argument, 0, 'p'},
711
{0, 0, 0, 0} };
712
713
int option_index = 0;
714
ret = getopt_long (argc, argv, "i:", long_options,
715
&option_index);
716
717
if (ret == -1){
718
break;
719
}
720
721
switch(ret){
722
case 0:
723
break;
724
case 'i':
725
interface = optarg;
726
break;
727
case 'C':
728
connect_to = optarg;
729
break;
730
case 'd':
731
certdir = optarg;
732
break;
733
case 'c':
734
certfile = optarg;
735
break;
736
case 'k':
737
certkey = optarg;
738
break;
739
case 'D':
740
{
741
long int tmp;
839
742
errno = 0;
840
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
841
if (errno){
743
tmp = strtol(optarg, NULL, 10);
744
if (errno == ERANGE){
842
745
perror("strtol");
843
746
exit(EXIT_FAILURE);
844
747
}
845
break;
846
case 130:
847
mc.priority = arg;
848
break;
849
case ARGP_KEY_ARG:
850
argp_usage (state);
851
case ARGP_KEY_END:
852
break;
853
default:
854
return ARGP_ERR_UNKNOWN;
855
}
856
return 0;
857
}
858
859
struct argp argp = { .options = options, .parser = parse_opt,
860
.args_doc = "",
861
.doc = "Mandos client -- Get and decrypt"
862
" passwords from mandos server" };
863
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
864
if (ret == ARGP_ERR_UNKNOWN){
865
fprintf(stderr, "Unknown error while parsing arguments\n");
866
exitcode = EXIT_FAILURE;
867
goto end;
868
}
869
}
870
871
pubkeyfilename = combinepath(keydir, pubkeyname);
872
if (pubkeyfilename == NULL){
873
perror("combinepath");
874
exitcode = EXIT_FAILURE;
875
goto end;
876
}
877
878
seckeyfilename = combinepath(keydir, seckeyname);
879
if (seckeyfilename == NULL){
880
perror("combinepath");
881
exitcode = EXIT_FAILURE;
882
goto end;
883
}
884
885
ret = init_gnutls_global(&mc, pubkeyfilename, seckeyfilename);
886
if (ret == -1){
887
fprintf(stderr, "init_gnutls_global failed\n");
888
exitcode = EXIT_FAILURE;
889
goto end;
890
} else {
891
gnutls_initalized = true;
892
}
893
894
/* If the interface is down, bring it up */
895
{
896
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
897
if(sd < 0) {
898
perror("socket");
899
exitcode = EXIT_FAILURE;
900
goto end;
901
}
902
strcpy(network.ifr_name, interface);
903
ret = ioctl(sd, SIOCGIFFLAGS, &network);
904
if(ret == -1){
905
perror("ioctl SIOCGIFFLAGS");
906
exitcode = EXIT_FAILURE;
907
goto end;
908
}
909
if((network.ifr_flags & IFF_UP) == 0){
910
network.ifr_flags |= IFF_UP;
911
ret = ioctl(sd, SIOCSIFFLAGS, &network);
912
if(ret == -1){
913
perror("ioctl SIOCSIFFLAGS");
914
exitcode = EXIT_FAILURE;
915
goto end;
916
}
917
}
918
close(sd);
919
}
920
921
uid = getuid();
922
gid = getgid();
923
924
ret = setuid(uid);
925
if (ret == -1){
926
perror("setuid");
927
}
928
929
setgid(gid);
930
if (ret == -1){
931
perror("setgid");
748
mc.dh_bits = tmp;
749
}
750
break;
751
case 'p':
752
mc.priority = optarg;
753
break;
754
default:
755
exit(EXIT_FAILURE);
756
}
757
}
758
759
certfile = combinepath(certdir, certfile);
760
if (certfile == NULL){
761
perror("combinepath");
762
returncode = EXIT_FAILURE;
763
goto exit;
764
}
765
766
certkey = combinepath(certdir, certkey);
767
if (certkey == NULL){
768
perror("combinepath");
769
returncode = EXIT_FAILURE;
770
goto exit;
932
771
}
933
772
934
773
if_index = (AvahiIfIndex) if_nametoindex(interface);
943
782
char *address = strrchr(connect_to, ':');
944
783
if(address == NULL){
945
784
fprintf(stderr, "No colon in address\n");
946
exitcode = EXIT_FAILURE;
947
goto end;
785
exit(EXIT_FAILURE);
948
786
}
949
787
errno = 0;
950
788
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
951
789
if(errno){
952
790
perror("Bad port number");
953
exitcode = EXIT_FAILURE;
954
goto end;
791
exit(EXIT_FAILURE);
955
792
}
956
793
*address = '\0';
957
794
address = connect_to;
958
ret = start_mandos_communication(address, port, if_index, &mc);
795
ret = start_mandos_communication(address, port, if_index);
959
796
if(ret < 0){
960
exitcode = EXIT_FAILURE;
797
exit(EXIT_FAILURE);
961
798
} else {
962
exitcode = EXIT_SUCCESS;
963
}
964
goto end;
965
}
799
exit(EXIT_SUCCESS);
800
}
801
}
802
803
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
804
if(sd < 0) {
805
perror("socket");
806
returncode = EXIT_FAILURE;
807
goto exit;
808
}
809
strcpy(network.ifr_name, interface);
810
ret = ioctl(sd, SIOCGIFFLAGS, &network);
811
if(ret == -1){
812
813
perror("ioctl SIOCGIFFLAGS");
814
returncode = EXIT_FAILURE;
815
goto exit;
816
}
817
if((network.ifr_flags & IFF_UP) == 0){
818
network.ifr_flags |= IFF_UP;
819
ret = ioctl(sd, SIOCSIFFLAGS, &network);
820
if(ret == -1){
821
perror("ioctl SIOCSIFFLAGS");
822
returncode = EXIT_FAILURE;
823
goto exit;
824
}
825
}
826
close(sd);
966
827
967
828
if (not debug){
968
829
avahi_set_log_function(empty_log);
969
830
}
970
831
971
/* Initialize the pseudo-RNG for Avahi */
832
/* Initialize the psuedo-RNG */
972
833
srand((unsigned int) time(NULL));
973
974
/* Allocate main Avahi loop object */
975
mc.simple_poll = avahi_simple_poll_new();
976
if (mc.simple_poll == NULL) {
977
fprintf(stderr, "Avahi: Failed to create simple poll"
978
" object.\n");
979
exitcode = EXIT_FAILURE;
980
goto end;
981
}
982
983
{
984
AvahiServerConfig config;
985
/* Do not publish any local Zeroconf records */
986
avahi_server_config_init(&config);
987
config.publish_hinfo = 0;
988
config.publish_addresses = 0;
989
config.publish_workstation = 0;
990
config.publish_domain = 0;
991
992
/* Allocate a new server */
993
mc.server = avahi_server_new(avahi_simple_poll_get
994
(mc.simple_poll), &config, NULL,
995
NULL, &error);
996
997
/* Free the Avahi configuration data */
998
avahi_server_config_free(&config);
999
}
1000
1001
/* Check if creating the Avahi server object succeeded */
1002
if (mc.server == NULL) {
1003
fprintf(stderr, "Failed to create Avahi server: %s\n",
834
835
/* Allocate main loop object */
836
if (!(mc.simple_poll = avahi_simple_poll_new())) {
837
fprintf(stderr, "Failed to create simple poll object.\n");
838
returncode = EXIT_FAILURE;
839
goto exit;
840
}
841
842
/* Do not publish any local records */
843
avahi_server_config_init(&config);
844
config.publish_hinfo = 0;
845
config.publish_addresses = 0;
846
config.publish_workstation = 0;
847
config.publish_domain = 0;
848
849
/* Allocate a new server */
850
mc.server = avahi_server_new(avahi_simple_poll_get(simple_poll),
851
&config, NULL, NULL, &error);
852
853
/* Free the configuration data */
854
avahi_server_config_free(&config);
855
856
/* Check if creating the server object succeeded */
857
if (!mc.server) {
858
fprintf(stderr, "Failed to create server: %s\n",
1004
859
avahi_strerror(error));
1005
exitcode = EXIT_FAILURE;
1006
goto end;
860
returncode = EXIT_FAILURE;
861
goto exit;
1007
862
}
1008
863
1009
/* Create the Avahi service browser */
864
/* Create the service browser */
1010
865
sb = avahi_s_service_browser_new(mc.server, if_index,
1011
866
AVAHI_PROTO_INET6,
1012
867
"_mandos._tcp", NULL, 0,
1013
868
browse_callback, &mc);
1014
if (sb == NULL) {
869
if (!sb) {
1015
870
fprintf(stderr, "Failed to create service browser: %s\n",
1016
871
avahi_strerror(avahi_server_errno(mc.server)));
1017
exitcode = EXIT_FAILURE;
1018
goto end;
872
returncode = EXIT_FAILURE;
873
goto exit;
1019
874
}
1020
875
1021
876
/* Run the main loop */
1022
877
1023
878
if (debug){
1024
fprintf(stderr, "Starting Avahi loop search\n");
879
fprintf(stderr, "Starting avahi loop search\n");
1025
880
}
1026
881
1027
avahi_simple_poll_loop(mc.simple_poll);
882
avahi_simple_poll_loop(simple_poll);
1028
883
1029
end:
884
exit:
1030
885
1031
886
if (debug){
1032
887
fprintf(stderr, "%s exiting\n", argv[0]);
1033
888
}
1034
889
1035
890
/* Cleanup things */
1036
if (sb != NULL)
891
if (sb)
1037
892
avahi_s_service_browser_free(sb);
1038
893
1039
if (mc.server != NULL)
894
if (mc.server)
1040
895
avahi_server_free(mc.server);
1041
896
1042
if (mc.simple_poll != NULL)
1043
avahi_simple_poll_free(mc.simple_poll);
1044
free(pubkeyfilename);
1045
free(seckeyfilename);
1046
1047
if (gnutls_initalized){
1048
gnutls_certificate_free_credentials(mc.cred);
1049
gnutls_global_deinit ();
1050
}
897
if (simple_poll)
898
avahi_simple_poll_free(simple_poll);
899
free(certfile);
900
free(certkey);
1051
901
1052
return exitcode;
902
return returncode;
1053
903
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0