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- Committer: Teddy Hogeborn
- Date: 2008-08-02 14:33:47 UTC
- Revision ID: teddy@fukt.bsnet.se-20080802143347-u1m4zs1q0feu72ei
* TODO: Converted to org-mode style
* plugins.d/mandosclient.c (certdir): Changed to "/conf/conf.d/mandos/".
(certdir, certfile, certkey, pgp_packet_decrypt, debuggnutls,
initgnutls, empty_log, combinepath): Made static.
(combinepath): Rewritten to only get the argument string lengths
once. Do not print error message; leave that to
caller. All callers changed.
* plugins.d/mandosclient.c (certdir): Changed to "/conf/conf.d/mandos/".
(certdir, certfile, certkey, pgp_packet_decrypt, debuggnutls,
initgnutls, empty_log, combinepath): Made static.
(combinepath): Rewritten to only get the argument string lengths
once. Do not print error message; leave that to
caller. All callers changed.
- files added:
- ca.pem
- files removed:
- COPYING
- files renamed:
- plugin-runner.c => plugbasedclient.c
- plugins.d/password-request.c => plugins.d/mandosclient.c
- plugins.d/password-prompt.c => plugins.d/passprompt.c
- mandos.conf => server.conf
- mandos => server.py
- files modified:
- Makefile
added
removed
plugins.d/mandosclient.c
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
#include <stdio.h>
36
#include <assert.h>
37
#include <stdlib.h>
38
#include <time.h>
39
#include <net/if.h> /* if_nametoindex */
40
76
41
#include <avahi-core/core.h>
77
42
#include <avahi-core/lookup.h>
78
43
#include <avahi-core/log.h>
80
45
#include <avahi-common/malloc.h>
81
46
#include <avahi-common/error.h>
82
47
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_* */
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>
98
68
99
69
#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";
100
75
101
76
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
77
107
/* Used for passing in values through the Avahi callback functions */
108
78
typedef struct {
109
AvahiSimplePoll *simple_poll;
110
AvahiServer *server;
79
gnutls_session_t session;
111
80
gnutls_certificate_credentials_t cred;
112
unsigned int dh_bits;
113
81
gnutls_dh_params_t dh_params;
114
const char *priority;
115
} mandos_context;
116
117
/*
118
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
119
* "buffer_capacity" is how much is currently allocated,
120
* "buffer_length" is how much is already used.
121
*/
122
size_t adjustbuffer(char **buffer, size_t buffer_length,
123
size_t buffer_capacity){
124
if (buffer_length + BUFFER_SIZE > buffer_capacity){
125
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
126
if (buffer == NULL){
127
return 0;
128
}
129
buffer_capacity += BUFFER_SIZE;
130
}
131
return buffer_capacity;
132
}
133
134
/*
135
* Decrypt OpenPGP data using keyrings in HOMEDIR.
136
* Returns -1 on error
137
*/
138
static ssize_t pgp_packet_decrypt (const char *cryptotext,
139
size_t crypto_size,
140
char **plaintext,
82
} encrypted_session;
83
84
85
static ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
86
char **new_packet,
141
87
const char *homedir){
142
88
gpgme_data_t dh_crypto, dh_plain;
143
89
gpgme_ctx_t ctx;
144
90
gpgme_error_t rc;
145
91
ssize_t ret;
146
size_t plaintext_capacity = 0;
147
ssize_t plaintext_length = 0;
92
ssize_t new_packet_capacity = 0;
93
ssize_t new_packet_length = 0;
148
94
gpgme_engine_info_t engine_info;
149
95
150
96
if (debug){
151
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
97
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
152
98
}
153
99
154
100
/* Init GPGME */
160
106
return -1;
161
107
}
162
108
163
/* Set GPGME home directory for the OpenPGP engine only */
109
/* Set GPGME home directory */
164
110
rc = gpgme_get_engine_info (&engine_info);
165
111
if (rc != GPG_ERR_NO_ERROR){
166
112
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
176
122
engine_info = engine_info->next;
177
123
}
178
124
if(engine_info == NULL){
179
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
125
fprintf(stderr, "Could not set home dir to %s\n", homedir);
180
126
return -1;
181
127
}
182
128
183
/* Create new GPGME data buffer from memory cryptotext */
184
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
185
0);
129
/* Create new GPGME data buffer from packet buffer */
130
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
186
131
if (rc != GPG_ERR_NO_ERROR){
187
132
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
188
133
gpgme_strsource(rc), gpgme_strerror(rc));
194
139
if (rc != GPG_ERR_NO_ERROR){
195
140
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
196
141
gpgme_strsource(rc), gpgme_strerror(rc));
197
gpgme_data_release(dh_crypto);
198
142
return -1;
199
143
}
200
144
203
147
if (rc != GPG_ERR_NO_ERROR){
204
148
fprintf(stderr, "bad gpgme_new: %s: %s\n",
205
149
gpgme_strsource(rc), gpgme_strerror(rc));
206
plaintext_length = -1;
207
goto decrypt_end;
150
return -1;
208
151
}
209
152
210
/* Decrypt data from the cryptotext data buffer to the plaintext
211
data buffer */
153
/* Decrypt data from the FILE pointer to the plaintext data
154
buffer */
212
155
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
213
156
if (rc != GPG_ERR_NO_ERROR){
214
157
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
215
158
gpgme_strsource(rc), gpgme_strerror(rc));
216
plaintext_length = -1;
217
goto decrypt_end;
159
return -1;
218
160
}
219
161
220
162
if(debug){
221
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
163
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
222
164
}
223
165
224
166
if (debug){
225
167
gpgme_decrypt_result_t result;
226
168
result = gpgme_op_decrypt_result(ctx);
229
171
} else {
230
172
fprintf(stderr, "Unsupported algorithm: %s\n",
231
173
result->unsupported_algorithm);
232
fprintf(stderr, "Wrong key usage: %u\n",
174
fprintf(stderr, "Wrong key usage: %d\n",
233
175
result->wrong_key_usage);
234
176
if(result->file_name != NULL){
235
177
fprintf(stderr, "File name: %s\n", result->file_name);
250
192
}
251
193
}
252
194
195
/* Delete the GPGME FILE pointer cryptotext data buffer */
196
gpgme_data_release(dh_crypto);
197
253
198
/* Seek back to the beginning of the GPGME plaintext data buffer */
254
199
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
255
200
perror("pgpme_data_seek");
256
plaintext_length = -1;
257
goto decrypt_end;
258
201
}
259
202
260
*plaintext = NULL;
203
*new_packet = 0;
261
204
while(true){
262
plaintext_capacity = adjustbuffer(plaintext,
263
(size_t)plaintext_length,
264
plaintext_capacity);
265
if (plaintext_capacity == 0){
266
perror("adjustbuffer");
267
plaintext_length = -1;
268
goto decrypt_end;
205
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
206
*new_packet = realloc(*new_packet,
207
(unsigned int)new_packet_capacity
208
+ BUFFER_SIZE);
209
if (*new_packet == NULL){
210
perror("realloc");
211
return -1;
212
}
213
new_packet_capacity += BUFFER_SIZE;
269
214
}
270
215
271
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
216
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
272
217
BUFFER_SIZE);
273
218
/* Print the data, if any */
274
219
if (ret == 0){
275
/* EOF */
276
220
break;
277
221
}
278
222
if(ret < 0){
279
223
perror("gpgme_data_read");
280
plaintext_length = -1;
281
goto decrypt_end;
224
return -1;
282
225
}
283
plaintext_length += ret;
226
new_packet_length += ret;
284
227
}
285
228
286
if(debug){
287
fprintf(stderr, "Decrypted password is: ");
288
for(ssize_t i = 0; i < plaintext_length; i++){
289
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
290
}
291
fprintf(stderr, "\n");
292
}
293
294
decrypt_end:
295
296
/* Delete the GPGME cryptotext data buffer */
297
gpgme_data_release(dh_crypto);
229
/* FIXME: check characters before printing to screen so to not print
230
terminal control characters */
231
/* if(debug){ */
232
/* fprintf(stderr, "decrypted password is: "); */
233
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
234
/* fprintf(stderr, "\n"); */
235
/* } */
298
236
299
237
/* Delete the GPGME plaintext data buffer */
300
238
gpgme_data_release(dh_plain);
301
return plaintext_length;
239
return new_packet_length;
302
240
}
303
241
304
242
static const char * safer_gnutls_strerror (int value) {
308
246
return ret;
309
247
}
310
248
311
/* GnuTLS log function callback */
312
249
static void debuggnutls(__attribute__((unused)) int level,
313
250
const char* string){
314
fprintf(stderr, "GnuTLS: %s", string);
251
fprintf(stderr, "%s", string);
315
252
}
316
253
317
static int init_gnutls_global(mandos_context *mc,
318
const char *pubkeyfilename,
319
const char *seckeyfilename){
254
static int initgnutls(encrypted_session *es){
255
const char *err;
320
256
int ret;
321
257
322
258
if(debug){
323
259
fprintf(stderr, "Initializing GnuTLS\n");
324
260
}
325
326
ret = gnutls_global_init();
327
if (ret != GNUTLS_E_SUCCESS) {
328
fprintf (stderr, "GnuTLS global_init: %s\n",
329
safer_gnutls_strerror(ret));
261
262
if ((ret = gnutls_global_init ())
263
!= GNUTLS_E_SUCCESS) {
264
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
330
265
return -1;
331
266
}
332
267
333
268
if (debug){
334
/* "Use a log level over 10 to enable all debugging options."
335
* - GnuTLS manual
336
*/
337
269
gnutls_global_set_log_level(11);
338
270
gnutls_global_set_log_function(debuggnutls);
339
271
}
340
272
341
/* OpenPGP credentials */
342
gnutls_certificate_allocate_credentials(&mc->cred);
343
if (ret != GNUTLS_E_SUCCESS){
344
fprintf (stderr, "GnuTLS memory error: %s\n",
273
/* openpgp credentials */
274
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
275
!= GNUTLS_E_SUCCESS) {
276
fprintf (stderr, "memory error: %s\n",
345
277
safer_gnutls_strerror(ret));
346
gnutls_global_deinit ();
347
278
return -1;
348
279
}
349
280
350
281
if(debug){
351
282
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
352
" and keyfile %s as GnuTLS credentials\n", pubkeyfilename,
353
seckeyfilename);
283
" and keyfile %s as GnuTLS credentials\n", certfile,
284
certkey);
354
285
}
355
286
356
287
ret = gnutls_certificate_set_openpgp_key_file
357
(mc->cred, pubkeyfilename, seckeyfilename,
358
GNUTLS_OPENPGP_FMT_BASE64);
288
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
359
289
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",
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",
364
295
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){
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){
400
319
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
401
320
safer_gnutls_strerror(ret));
402
321
}
403
322
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
}
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;
414
329
}
415
330
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",
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",
420
335
safer_gnutls_strerror(ret));
421
gnutls_deinit (*session);
422
336
return -1;
423
337
}
424
338
425
339
/* ignore client certificate if any. */
426
gnutls_certificate_server_set_request (*session,
340
gnutls_certificate_server_set_request (es->session,
427
341
GNUTLS_CERT_IGNORE);
428
342
429
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
343
gnutls_dh_set_prime_bits (es->session, DH_BITS);
430
344
431
345
return 0;
432
346
}
433
347
434
/* Avahi log function callback */
435
348
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
436
349
__attribute__((unused)) const char *txt){}
437
350
438
/* Called when a Mandos server is found */
439
351
static int start_mandos_communication(const char *ip, uint16_t port,
440
AvahiIfIndex if_index,
441
mandos_context *mc){
352
AvahiIfIndex if_index){
442
353
int ret, tcp_sd;
443
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
354
struct sockaddr_in6 to;
355
encrypted_session es;
444
356
char *buffer = NULL;
445
357
char *decrypted_buffer;
446
358
size_t buffer_length = 0;
447
359
size_t buffer_capacity = 0;
448
360
ssize_t decrypted_buffer_size;
449
size_t written;
361
size_t written = 0;
450
362
int retval = 0;
451
363
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
364
459
365
if(debug){
460
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
461
"\n", ip, port);
366
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
367
ip, port);
462
368
}
463
369
464
370
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
466
372
perror("socket");
467
373
return -1;
468
374
}
469
470
if(debug){
471
if(if_indextoname((unsigned int)if_index, interface) == NULL){
375
376
if(if_indextoname((unsigned int)if_index, interface) == NULL){
377
if(debug){
472
378
perror("if_indextoname");
473
return -1;
474
379
}
380
return -1;
381
}
382
383
if(debug){
475
384
fprintf(stderr, "Binding to interface %s\n", interface);
476
385
}
477
386
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);
387
memset(&to,0,sizeof(to)); /* Spurious warning */
388
to.sin6_family = AF_INET6;
389
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
483
390
if (ret < 0 ){
484
391
perror("inet_pton");
485
392
return -1;
486
}
393
}
487
394
if(ret == 0){
488
395
fprintf(stderr, "Bad address: %s\n", ip);
489
396
return -1;
490
397
}
491
to.in6.sin6_port = htons(port); /* Spurious warning */
398
to.sin6_port = htons(port); /* Spurious warning */
492
399
493
to.in6.sin6_scope_id = (uint32_t)if_index;
400
to.sin6_scope_id = (uint32_t)if_index;
494
401
495
402
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
}
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
/* } */
507
412
}
508
413
509
ret = connect(tcp_sd, &to.in, sizeof(to));
414
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
510
415
if (ret < 0){
511
416
perror("connect");
512
417
return -1;
513
418
}
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
}
419
420
ret = initgnutls (&es);
421
if (ret != 0){
422
retval = -1;
423
return -1;
537
424
}
538
425
426
gnutls_transport_set_ptr (es.session,
427
(gnutls_transport_ptr_t) tcp_sd);
428
539
429
if(debug){
540
430
fprintf(stderr, "Establishing TLS session with %s\n", ip);
541
431
}
542
432
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);
433
ret = gnutls_handshake (es.session);
548
434
549
435
if (ret != GNUTLS_E_SUCCESS){
550
436
if(debug){
551
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
437
fprintf(stderr, "\n*** Handshake failed ***\n");
552
438
gnutls_perror (ret);
553
439
}
554
440
retval = -1;
555
goto mandos_end;
441
goto exit;
556
442
}
557
443
558
/* Read OpenPGP packet that contains the wanted password */
444
//Retrieve OpenPGP packet that contains the wanted password
559
445
560
446
if(debug){
561
447
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
563
449
}
564
450
565
451
while(true){
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;
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;
572
459
}
573
460
574
ret = gnutls_record_recv(session, buffer+buffer_length,
575
BUFFER_SIZE);
461
ret = gnutls_record_recv
462
(es.session, buffer+buffer_length, BUFFER_SIZE);
576
463
if (ret == 0){
577
464
break;
578
465
}
582
469
case GNUTLS_E_AGAIN:
583
470
break;
584
471
case GNUTLS_E_REHANDSHAKE:
585
do{
586
ret = gnutls_handshake (session);
587
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
472
ret = gnutls_handshake (es.session);
588
473
if (ret < 0){
589
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
474
fprintf(stderr, "\n*** Handshake failed ***\n");
590
475
gnutls_perror (ret);
591
476
retval = -1;
592
goto mandos_end;
477
goto exit;
593
478
}
594
479
break;
595
480
default:
596
481
fprintf(stderr, "Unknown error while reading data from"
597
" encrypted session with Mandos server\n");
482
" encrypted session with mandos server\n");
598
483
retval = -1;
599
gnutls_bye (session, GNUTLS_SHUT_RDWR);
600
goto mandos_end;
484
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
485
goto exit;
601
486
}
602
487
} else {
603
488
buffer_length += (size_t) ret;
604
489
}
605
490
}
606
491
607
if(debug){
608
fprintf(stderr, "Closing TLS session\n");
609
}
610
611
gnutls_bye (session, GNUTLS_SHUT_RDWR);
612
613
492
if (buffer_length > 0){
614
493
decrypted_buffer_size = pgp_packet_decrypt(buffer,
615
494
buffer_length,
616
495
&decrypted_buffer,
617
keydir);
496
certdir);
618
497
if (decrypted_buffer_size >= 0){
619
written = 0;
620
498
while(written < (size_t) decrypted_buffer_size){
621
499
ret = (int)fwrite (decrypted_buffer + written, 1,
622
500
(size_t)decrypted_buffer_size - written,
636
514
retval = -1;
637
515
}
638
516
}
639
640
/* Shutdown procedure */
641
642
mandos_end:
517
518
//shutdown procedure
519
520
if(debug){
521
fprintf(stderr, "Closing TLS session\n");
522
}
523
643
524
free(buffer);
525
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
526
exit:
644
527
close(tcp_sd);
645
gnutls_deinit (session);
528
gnutls_deinit (es.session);
529
gnutls_certificate_free_credentials (es.cred);
530
gnutls_global_deinit ();
646
531
return retval;
647
532
}
648
533
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;
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
664
552
assert(r); /* Spurious warning */
665
553
666
554
/* Called whenever a service has been resolved successfully or
669
557
switch (event) {
670
558
default:
671
559
case AVAHI_RESOLVER_FAILURE:
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)));
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)));
675
563
break;
676
564
677
565
case AVAHI_RESOLVER_FOUND:
679
567
char ip[AVAHI_ADDRESS_STR_MAX];
680
568
avahi_address_snprint(ip, sizeof(ip), address);
681
569
if(debug){
682
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
683
PRIu16 ") on port %d\n", name, host_name, ip,
684
interface, port);
570
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
571
" port %d\n", name, host_name, ip, port);
685
572
}
686
int ret = start_mandos_communication(ip, port, interface, mc);
573
int ret = start_mandos_communication(ip, port, interface);
687
574
if (ret == 0){
688
avahi_simple_poll_quit(mc->simple_poll);
575
exit(EXIT_SUCCESS);
689
576
}
690
577
}
691
578
}
692
579
avahi_s_service_resolver_free(r);
693
580
}
694
581
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");
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;
741
628
}
742
break;
743
}
744
629
}
745
630
746
631
/* Combines file name and path and returns the malloced new
747
632
string. some sane checks could/should be added */
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){
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){
752
638
return NULL;
753
639
}
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';
754
648
return tmp;
755
649
}
756
650
757
651
758
int main(int argc, char *argv[]){
652
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
653
AvahiServerConfig config;
759
654
AvahiSServiceBrowser *sb = NULL;
760
655
int error;
761
656
int ret;
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;
657
int returncode = EXIT_SUCCESS;
658
const char *interface = NULL;
659
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
768
660
char *connect_to = NULL;
769
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
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);
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
}
936
715
}
937
716
938
717
if(connect_to != NULL){
941
720
char *address = strrchr(connect_to, ':');
942
721
if(address == NULL){
943
722
fprintf(stderr, "No colon in address\n");
944
exitcode = EXIT_FAILURE;
945
goto end;
723
exit(EXIT_FAILURE);
946
724
}
947
725
errno = 0;
948
726
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
949
727
if(errno){
950
728
perror("Bad port number");
951
exitcode = EXIT_FAILURE;
952
goto end;
729
exit(EXIT_FAILURE);
953
730
}
954
731
*address = '\0';
955
732
address = connect_to;
956
ret = start_mandos_communication(address, port, if_index, &mc);
733
ret = start_mandos_communication(address, port, if_index);
957
734
if(ret < 0){
958
exitcode = EXIT_FAILURE;
735
exit(EXIT_FAILURE);
959
736
} else {
960
exitcode = EXIT_SUCCESS;
737
exit(EXIT_SUCCESS);
961
738
}
962
goto end;
739
}
740
741
certkey = combinepath(certdir, certkey);
742
if (certkey == NULL){
743
perror("combinepath");
744
goto exit;
963
745
}
964
746
965
747
if (not debug){
966
748
avahi_set_log_function(empty_log);
967
749
}
968
750
969
/* Initialize the pseudo-RNG for Avahi */
751
/* Initialize the psuedo-RNG */
970
752
srand((unsigned int) time(NULL));
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",
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",
1002
778
avahi_strerror(error));
1003
exitcode = EXIT_FAILURE;
1004
goto end;
779
returncode = EXIT_FAILURE;
780
goto exit;
1005
781
}
1006
782
1007
/* Create the Avahi service browser */
1008
sb = avahi_s_service_browser_new(mc.server, if_index,
783
/* Create the service browser */
784
sb = avahi_s_service_browser_new(server, if_index,
1009
785
AVAHI_PROTO_INET6,
1010
786
"_mandos._tcp", NULL, 0,
1011
browse_callback, &mc);
1012
if (sb == NULL) {
787
browse_callback, server);
788
if (!sb) {
1013
789
fprintf(stderr, "Failed to create service browser: %s\n",
1014
avahi_strerror(avahi_server_errno(mc.server)));
1015
exitcode = EXIT_FAILURE;
1016
goto end;
790
avahi_strerror(avahi_server_errno(server)));
791
returncode = EXIT_FAILURE;
792
goto exit;
1017
793
}
1018
794
1019
795
/* Run the main loop */
1020
796
1021
797
if (debug){
1022
fprintf(stderr, "Starting Avahi loop search\n");
798
fprintf(stderr, "Starting avahi loop search\n");
1023
799
}
1024
800
1025
avahi_simple_poll_loop(mc.simple_poll);
801
avahi_simple_poll_loop(simple_poll);
1026
802
1027
end:
803
exit:
1028
804
1029
805
if (debug){
1030
806
fprintf(stderr, "%s exiting\n", argv[0]);
1031
807
}
1032
808
1033
809
/* Cleanup things */
1034
if (sb != NULL)
810
if (sb)
1035
811
avahi_s_service_browser_free(sb);
1036
812
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
}
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);
1049
820
1050
return exitcode;
821
return returncode;
1051
822
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0