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- Committer: Björn Påhlsson
- Date: 2008-07-31 16:20:47 UTC
- mto: (237.7.1 mandos) (24.1.154 mandos)
- mto: This revision was merged to the branch mainline in revision 30.
- Revision ID: belorn@braxen-20080731162047-lahe2b2prwjw8b2l
plugbasedclient:
Added support to disable plugins
Added support to change plugin directory
mandosclient.c
Fixed some funtion calls that lacked error handling
small bugfix
Added support to disable plugins
Added support to change plugin directory
mandosclient.c
Fixed some funtion calls that lacked error handling
small bugfix
- files added:
- ca.pem
- files removed:
- mandos-client.xml
- files renamed:
- clients.conf => mandos-clients.conf
- mandos-client.c => plugbasedclient.c
- plugins.d/password-request.c => plugins.d/mandosclient.c
- plugins.d/password-prompt.c => plugins.d/passprompt.c
- mandos => server.py
- files modified:
- Makefile
added
removed
plugins.d/mandosclient.c
8
8
* includes the following functions: "resolve_callback",
9
9
* "browse_callback", and parts of "main".
10
10
*
11
* Everything else is
12
* Copyright © 2007-2008 Teddy Hogeborn & Björn Påhlsson
11
* Everything else is Copyright © 2007-2008 Teddy Hogeborn and Björn
12
* Påhlsson.
13
13
*
14
14
* This program is free software: you can redistribute it and/or
15
15
* modify it under the terms of the GNU General Public License as
25
25
* along with this program. If not, see
26
26
* <http://www.gnu.org/licenses/>.
27
27
*
28
* Contact the authors at <mandos@fukt.bsnet.se>.
28
* Contact the authors at <https://www.fukt.bsnet.se/~belorn/> and
29
* <https://www.fukt.bsnet.se/~teddy/>.
29
30
*/
30
31
31
/* Needed by GPGME, specifically gpgme_data_seek() */
32
#define _FORTIFY_SOURCE 2
33
32
34
#define _LARGEFILE_SOURCE
33
35
#define _FILE_OFFSET_BITS 64
34
36
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY() */
36
37
#include <stdio.h> /* fprintf(), stderr, fwrite(), stdout,
38
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(), memcpy(), 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_* */
37
#include <stdio.h>
38
#include <assert.h>
39
#include <stdlib.h>
40
#include <time.h>
41
#include <net/if.h> /* if_nametoindex */
42
76
43
#include <avahi-core/core.h>
77
44
#include <avahi-core/lookup.h>
78
45
#include <avahi-core/log.h>
80
47
#include <avahi-common/malloc.h>
81
48
#include <avahi-common/error.h>
82
49
83
/* GnuTLS */
84
#include <gnutls/gnutls.h> /* All GnuTLS types, constants and functions
85
gnutls_*
86
init_gnutls_session(),
87
GNUTLS_* */
88
#include <gnutls/openpgp.h> /* gnutls_certificate_set_openpgp_key_file(),
89
GNUTLS_OPENPGP_FMT_BASE64 */
90
91
/* GPGME */
92
#include <gpgme.h> /* All GPGME types, constants and functions
93
gpgme_*
94
GPGME_PROTOCOL_OpenPGP,
95
GPG_ERR_NO_* */
50
//mandos client part
51
#include <sys/types.h> /* socket(), inet_pton() */
52
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
53
struct in6_addr, inet_pton() */
54
#include <gnutls/gnutls.h> /* All GnuTLS stuff */
55
#include <gnutls/openpgp.h> /* GnuTLS with openpgp stuff */
56
57
#include <unistd.h> /* close() */
58
#include <netinet/in.h>
59
#include <stdbool.h> /* true */
60
#include <string.h> /* memset */
61
#include <arpa/inet.h> /* inet_pton() */
62
#include <iso646.h> /* not */
63
64
// gpgme
65
#include <errno.h> /* perror() */
66
#include <gpgme.h>
67
68
// getopt long
69
#include <getopt.h>
96
70
97
71
#define BUFFER_SIZE 256
72
#define DH_BITS 1024
73
74
const char *certdir = "/conf/conf.d/cryptkeyreq/";
75
const char *certfile = "openpgp-client.txt";
76
const char *certkey = "openpgp-client-key.txt";
98
77
99
78
bool debug = false;
100
static const char *keydir = "/conf/conf.d/mandos";
101
static const char mandos_protocol_version[] = "1";
102
const char *argp_program_version = "password-request 1.0";
103
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
104
79
105
/* Used for passing in values through the Avahi callback functions */
106
80
typedef struct {
107
AvahiSimplePoll *simple_poll;
108
AvahiServer *server;
81
gnutls_session_t session;
109
82
gnutls_certificate_credentials_t cred;
110
unsigned int dh_bits;
111
83
gnutls_dh_params_t dh_params;
112
const char *priority;
113
} mandos_context;
114
115
/*
116
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
117
* "buffer_capacity" is how much is currently allocated,
118
* "buffer_length" is how much is already used.
119
*/
120
size_t adjustbuffer(char **buffer, size_t buffer_length,
121
size_t buffer_capacity){
122
if (buffer_length + BUFFER_SIZE > buffer_capacity){
123
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
124
if (buffer == NULL){
125
return 0;
126
}
127
buffer_capacity += BUFFER_SIZE;
128
}
129
return buffer_capacity;
130
}
131
132
/*
133
* Decrypt OpenPGP data using keyrings in HOMEDIR.
134
* Returns -1 on error
135
*/
136
static ssize_t pgp_packet_decrypt (const char *cryptotext,
137
size_t crypto_size,
138
char **plaintext,
139
const char *homedir){
84
} encrypted_session;
85
86
87
ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
88
char **new_packet, const char *homedir){
140
89
gpgme_data_t dh_crypto, dh_plain;
141
90
gpgme_ctx_t ctx;
142
91
gpgme_error_t rc;
143
92
ssize_t ret;
144
size_t plaintext_capacity = 0;
145
ssize_t plaintext_length = 0;
93
ssize_t new_packet_capacity = 0;
94
ssize_t new_packet_length = 0;
146
95
gpgme_engine_info_t engine_info;
147
96
148
97
if (debug){
149
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
98
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
150
99
}
151
100
152
101
/* Init GPGME */
158
107
return -1;
159
108
}
160
109
161
/* Set GPGME home directory for the OpenPGP engine only */
110
/* Set GPGME home directory */
162
111
rc = gpgme_get_engine_info (&engine_info);
163
112
if (rc != GPG_ERR_NO_ERROR){
164
113
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
174
123
engine_info = engine_info->next;
175
124
}
176
125
if(engine_info == NULL){
177
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
126
fprintf(stderr, "Could not set home dir to %s\n", homedir);
178
127
return -1;
179
128
}
180
129
181
/* Create new GPGME data buffer from memory cryptotext */
182
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
183
0);
130
/* Create new GPGME data buffer from packet buffer */
131
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
184
132
if (rc != GPG_ERR_NO_ERROR){
185
133
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
186
134
gpgme_strsource(rc), gpgme_strerror(rc));
192
140
if (rc != GPG_ERR_NO_ERROR){
193
141
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
194
142
gpgme_strsource(rc), gpgme_strerror(rc));
195
gpgme_data_release(dh_crypto);
196
143
return -1;
197
144
}
198
145
201
148
if (rc != GPG_ERR_NO_ERROR){
202
149
fprintf(stderr, "bad gpgme_new: %s: %s\n",
203
150
gpgme_strsource(rc), gpgme_strerror(rc));
204
plaintext_length = -1;
205
goto decrypt_end;
151
return -1;
206
152
}
207
153
208
/* Decrypt data from the cryptotext data buffer to the plaintext
209
data buffer */
154
/* Decrypt data from the FILE pointer to the plaintext data
155
buffer */
210
156
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
211
157
if (rc != GPG_ERR_NO_ERROR){
212
158
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
213
159
gpgme_strsource(rc), gpgme_strerror(rc));
214
plaintext_length = -1;
215
goto decrypt_end;
160
return -1;
216
161
}
217
162
218
163
if(debug){
219
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
164
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
220
165
}
221
166
222
167
if (debug){
223
168
gpgme_decrypt_result_t result;
224
169
result = gpgme_op_decrypt_result(ctx);
227
172
} else {
228
173
fprintf(stderr, "Unsupported algorithm: %s\n",
229
174
result->unsupported_algorithm);
230
fprintf(stderr, "Wrong key usage: %u\n",
175
fprintf(stderr, "Wrong key usage: %d\n",
231
176
result->wrong_key_usage);
232
177
if(result->file_name != NULL){
233
178
fprintf(stderr, "File name: %s\n", result->file_name);
248
193
}
249
194
}
250
195
196
/* Delete the GPGME FILE pointer cryptotext data buffer */
197
gpgme_data_release(dh_crypto);
198
251
199
/* Seek back to the beginning of the GPGME plaintext data buffer */
252
200
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
253
201
perror("pgpme_data_seek");
254
plaintext_length = -1;
255
goto decrypt_end;
256
202
}
257
203
258
*plaintext = NULL;
204
*new_packet = 0;
259
205
while(true){
260
plaintext_capacity = adjustbuffer(plaintext,
261
(size_t)plaintext_length,
262
plaintext_capacity);
263
if (plaintext_capacity == 0){
264
perror("adjustbuffer");
265
plaintext_length = -1;
266
goto decrypt_end;
206
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
207
*new_packet = realloc(*new_packet,
208
(unsigned int)new_packet_capacity
209
+ BUFFER_SIZE);
210
if (*new_packet == NULL){
211
perror("realloc");
212
return -1;
213
}
214
new_packet_capacity += BUFFER_SIZE;
267
215
}
268
216
269
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
217
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
270
218
BUFFER_SIZE);
271
219
/* Print the data, if any */
272
220
if (ret == 0){
273
/* EOF */
274
221
break;
275
222
}
276
223
if(ret < 0){
277
224
perror("gpgme_data_read");
278
plaintext_length = -1;
279
goto decrypt_end;
225
return -1;
280
226
}
281
plaintext_length += ret;
227
new_packet_length += ret;
282
228
}
283
229
284
if(debug){
285
fprintf(stderr, "Decrypted password is: ");
286
for(ssize_t i = 0; i < plaintext_length; i++){
287
fprintf(stderr, "%02hhX ", (*plaintext)[i]);
288
}
289
fprintf(stderr, "\n");
290
}
291
292
decrypt_end:
293
294
/* Delete the GPGME cryptotext data buffer */
295
gpgme_data_release(dh_crypto);
230
/* FIXME: check characters before printing to screen so to not print
231
terminal control characters */
232
/* if(debug){ */
233
/* fprintf(stderr, "decrypted password is: "); */
234
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
235
/* fprintf(stderr, "\n"); */
236
/* } */
296
237
297
238
/* Delete the GPGME plaintext data buffer */
298
239
gpgme_data_release(dh_plain);
299
return plaintext_length;
240
return new_packet_length;
300
241
}
301
242
302
243
static const char * safer_gnutls_strerror (int value) {
306
247
return ret;
307
248
}
308
249
309
/* GnuTLS log function callback */
310
static void debuggnutls(__attribute__((unused)) int level,
311
const char* string){
312
fprintf(stderr, "GnuTLS: %s", string);
250
void debuggnutls(__attribute__((unused)) int level,
251
const char* string){
252
fprintf(stderr, "%s", string);
313
253
}
314
254
315
static int init_gnutls_global(mandos_context *mc,
316
const char *pubkeyfile,
317
const char *seckeyfile){
255
int initgnutls(encrypted_session *es){
256
const char *err;
318
257
int ret;
319
258
320
259
if(debug){
321
260
fprintf(stderr, "Initializing GnuTLS\n");
322
261
}
323
324
ret = gnutls_global_init();
325
if (ret != GNUTLS_E_SUCCESS) {
326
fprintf (stderr, "GnuTLS global_init: %s\n",
327
safer_gnutls_strerror(ret));
262
263
if ((ret = gnutls_global_init ())
264
!= GNUTLS_E_SUCCESS) {
265
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
328
266
return -1;
329
267
}
330
268
331
269
if (debug){
332
/* "Use a log level over 10 to enable all debugging options."
333
* - GnuTLS manual
334
*/
335
270
gnutls_global_set_log_level(11);
336
271
gnutls_global_set_log_function(debuggnutls);
337
272
}
338
273
339
/* OpenPGP credentials */
340
gnutls_certificate_allocate_credentials(&mc->cred);
341
if (ret != GNUTLS_E_SUCCESS){
342
fprintf (stderr, "GnuTLS memory error: %s\n",
274
/* openpgp credentials */
275
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
276
!= GNUTLS_E_SUCCESS) {
277
fprintf (stderr, "memory error: %s\n",
343
278
safer_gnutls_strerror(ret));
344
gnutls_global_deinit ();
345
279
return -1;
346
280
}
347
281
348
282
if(debug){
349
283
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
350
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
351
seckeyfile);
284
" and keyfile %s as GnuTLS credentials\n", certfile,
285
certkey);
352
286
}
353
287
354
288
ret = gnutls_certificate_set_openpgp_key_file
355
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
289
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
356
290
if (ret != GNUTLS_E_SUCCESS) {
357
fprintf(stderr,
358
"Error[%d] while reading the OpenPGP key pair ('%s',"
359
" '%s')\n", ret, pubkeyfile, seckeyfile);
360
fprintf(stdout, "The GnuTLS error is: %s\n",
291
fprintf
292
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
293
" '%s')\n",
294
ret, certfile, certkey);
295
fprintf(stdout, "The Error is: %s\n",
361
296
safer_gnutls_strerror(ret));
362
goto globalfail;
363
}
364
365
/* GnuTLS server initialization */
366
ret = gnutls_dh_params_init(&mc->dh_params);
367
if (ret != GNUTLS_E_SUCCESS) {
368
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
369
" %s\n", safer_gnutls_strerror(ret));
370
goto globalfail;
371
}
372
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
373
if (ret != GNUTLS_E_SUCCESS) {
374
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
375
safer_gnutls_strerror(ret));
376
goto globalfail;
377
}
378
379
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
380
381
return 0;
382
383
globalfail:
384
385
gnutls_certificate_free_credentials(mc->cred);
386
gnutls_global_deinit();
387
return -1;
388
389
}
390
391
static int init_gnutls_session(mandos_context *mc,
392
gnutls_session_t *session){
393
int ret;
394
/* GnuTLS session creation */
395
ret = gnutls_init(session, GNUTLS_SERVER);
396
if (ret != GNUTLS_E_SUCCESS){
297
return -1;
298
}
299
300
//GnuTLS server initialization
301
if ((ret = gnutls_dh_params_init (&es->dh_params))
302
!= GNUTLS_E_SUCCESS) {
303
fprintf (stderr, "Error in dh parameter initialization: %s\n",
304
safer_gnutls_strerror(ret));
305
return -1;
306
}
307
308
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
309
!= GNUTLS_E_SUCCESS) {
310
fprintf (stderr, "Error in prime generation: %s\n",
311
safer_gnutls_strerror(ret));
312
return -1;
313
}
314
315
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
316
317
// GnuTLS session creation
318
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
319
!= GNUTLS_E_SUCCESS){
397
320
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
398
321
safer_gnutls_strerror(ret));
399
322
}
400
323
401
{
402
const char *err;
403
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
404
if (ret != GNUTLS_E_SUCCESS) {
405
fprintf(stderr, "Syntax error at: %s\n", err);
406
fprintf(stderr, "GnuTLS error: %s\n",
407
safer_gnutls_strerror(ret));
408
gnutls_deinit (*session);
409
return -1;
410
}
324
if ((ret = gnutls_priority_set_direct (es->session, "NORMAL", &err))
325
!= GNUTLS_E_SUCCESS) {
326
fprintf(stderr, "Syntax error at: %s\n", err);
327
fprintf(stderr, "GnuTLS error: %s\n",
328
safer_gnutls_strerror(ret));
329
return -1;
411
330
}
412
331
413
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
414
mc->cred);
415
if (ret != GNUTLS_E_SUCCESS) {
416
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
332
if ((ret = gnutls_credentials_set
333
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
334
!= GNUTLS_E_SUCCESS) {
335
fprintf(stderr, "Error setting a credentials set: %s\n",
417
336
safer_gnutls_strerror(ret));
418
gnutls_deinit (*session);
419
337
return -1;
420
338
}
421
339
422
340
/* ignore client certificate if any. */
423
gnutls_certificate_server_set_request (*session,
341
gnutls_certificate_server_set_request (es->session,
424
342
GNUTLS_CERT_IGNORE);
425
343
426
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
344
gnutls_dh_set_prime_bits (es->session, DH_BITS);
427
345
428
346
return 0;
429
347
}
430
348
431
/* Avahi log function callback */
432
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
433
__attribute__((unused)) const char *txt){}
349
void empty_log(__attribute__((unused)) AvahiLogLevel level,
350
__attribute__((unused)) const char *txt){}
434
351
435
/* Called when a Mandos server is found */
436
static int start_mandos_communication(const char *ip, uint16_t port,
437
AvahiIfIndex if_index,
438
mandos_context *mc){
352
int start_mandos_communication(const char *ip, uint16_t port,
353
unsigned int if_index){
439
354
int ret, tcp_sd;
440
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
355
struct sockaddr_in6 to;
356
encrypted_session es;
441
357
char *buffer = NULL;
442
358
char *decrypted_buffer;
443
359
size_t buffer_length = 0;
444
360
size_t buffer_capacity = 0;
445
361
ssize_t decrypted_buffer_size;
446
size_t written;
362
size_t written = 0;
447
363
int retval = 0;
448
364
char interface[IF_NAMESIZE];
449
gnutls_session_t session;
450
451
ret = init_gnutls_session (mc, &session);
452
if (ret != 0){
453
return -1;
454
}
455
365
456
366
if(debug){
457
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
458
"\n", ip, port);
367
fprintf(stderr, "Setting up a tcp connection to %s\n", ip);
459
368
}
460
369
461
370
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
463
372
perror("socket");
464
373
return -1;
465
374
}
466
467
if(debug){
468
if(if_indextoname((unsigned int)if_index, interface) == NULL){
375
376
if(if_indextoname(if_index, interface) == NULL){
377
if(debug){
469
378
perror("if_indextoname");
470
return -1;
471
379
}
380
return -1;
381
}
382
383
if(debug){
472
384
fprintf(stderr, "Binding to interface %s\n", interface);
473
385
}
474
386
475
387
memset(&to,0,sizeof(to)); /* Spurious warning */
476
to.in6.sin6_family = AF_INET6;
477
/* It would be nice to have a way to detect if we were passed an
478
IPv4 address here. Now we assume an IPv6 address. */
479
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
388
to.sin6_family = AF_INET6;
389
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
480
390
if (ret < 0 ){
481
391
perror("inet_pton");
482
392
return -1;
483
}
393
}
484
394
if(ret == 0){
485
395
fprintf(stderr, "Bad address: %s\n", ip);
486
396
return -1;
487
397
}
488
to.in6.sin6_port = htons(port); /* Spurious warning */
398
to.sin6_port = htons(port); /* Spurious warning */
489
399
490
to.in6.sin6_scope_id = (uint32_t)if_index;
400
to.sin6_scope_id = (uint32_t)if_index;
491
401
492
402
if(debug){
493
fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
494
port);
495
char addrstr[INET6_ADDRSTRLEN] = "";
496
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
497
sizeof(addrstr)) == NULL){
498
perror("inet_ntop");
499
} else {
500
if(strcmp(addrstr, ip) != 0){
501
fprintf(stderr, "Canonical address form: %s\n", addrstr);
502
}
503
}
403
fprintf(stderr, "Connection to: %s\n", ip);
504
404
}
505
405
506
ret = connect(tcp_sd, &to.in, sizeof(to));
406
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
507
407
if (ret < 0){
508
408
perror("connect");
509
409
return -1;
510
410
}
511
512
const char *out = mandos_protocol_version;
513
written = 0;
514
while (true){
515
size_t out_size = strlen(out);
516
ret = TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
517
out_size - written));
518
if (ret == -1){
519
perror("write");
520
retval = -1;
521
goto mandos_end;
522
}
523
written += (size_t)ret;
524
if(written < out_size){
525
continue;
526
} else {
527
if (out == mandos_protocol_version){
528
written = 0;
529
out = "\r\n";
530
} else {
531
break;
532
}
533
}
411
412
ret = initgnutls (&es);
413
if (ret != 0){
414
retval = -1;
415
return -1;
534
416
}
535
417
418
gnutls_transport_set_ptr (es.session,
419
(gnutls_transport_ptr_t) tcp_sd);
420
536
421
if(debug){
537
422
fprintf(stderr, "Establishing TLS session with %s\n", ip);
538
423
}
539
424
540
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
541
542
do{
543
ret = gnutls_handshake (session);
544
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
425
ret = gnutls_handshake (es.session);
545
426
546
427
if (ret != GNUTLS_E_SUCCESS){
547
428
if(debug){
548
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
429
fprintf(stderr, "\n*** Handshake failed ***\n");
549
430
gnutls_perror (ret);
550
431
}
551
432
retval = -1;
552
goto mandos_end;
433
goto exit;
553
434
}
554
435
555
/* Read OpenPGP packet that contains the wanted password */
436
//Retrieve OpenPGP packet that contains the wanted password
556
437
557
438
if(debug){
558
439
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
560
441
}
561
442
562
443
while(true){
563
buffer_capacity = adjustbuffer(&buffer, buffer_length,
564
buffer_capacity);
565
if (buffer_capacity == 0){
566
perror("adjustbuffer");
567
retval = -1;
568
goto mandos_end;
444
if (buffer_length + BUFFER_SIZE > buffer_capacity){
445
buffer = realloc(buffer, buffer_capacity + BUFFER_SIZE);
446
if (buffer == NULL){
447
perror("realloc");
448
goto exit;
449
}
450
buffer_capacity += BUFFER_SIZE;
569
451
}
570
452
571
ret = gnutls_record_recv(session, buffer+buffer_length,
572
BUFFER_SIZE);
453
ret = gnutls_record_recv
454
(es.session, buffer+buffer_length, BUFFER_SIZE);
573
455
if (ret == 0){
574
456
break;
575
457
}
579
461
case GNUTLS_E_AGAIN:
580
462
break;
581
463
case GNUTLS_E_REHANDSHAKE:
582
do{
583
ret = gnutls_handshake (session);
584
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
464
ret = gnutls_handshake (es.session);
585
465
if (ret < 0){
586
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
466
fprintf(stderr, "\n*** Handshake failed ***\n");
587
467
gnutls_perror (ret);
588
468
retval = -1;
589
goto mandos_end;
469
goto exit;
590
470
}
591
471
break;
592
472
default:
593
473
fprintf(stderr, "Unknown error while reading data from"
594
" encrypted session with Mandos server\n");
474
" encrypted session with mandos server\n");
595
475
retval = -1;
596
gnutls_bye (session, GNUTLS_SHUT_RDWR);
597
goto mandos_end;
476
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
477
goto exit;
598
478
}
599
479
} else {
600
480
buffer_length += (size_t) ret;
601
481
}
602
482
}
603
483
604
if(debug){
605
fprintf(stderr, "Closing TLS session\n");
606
}
607
608
gnutls_bye (session, GNUTLS_SHUT_RDWR);
609
610
484
if (buffer_length > 0){
611
485
decrypted_buffer_size = pgp_packet_decrypt(buffer,
612
486
buffer_length,
613
487
&decrypted_buffer,
614
keydir);
488
certdir);
615
489
if (decrypted_buffer_size >= 0){
616
written = 0;
617
while(written < (size_t) decrypted_buffer_size){
490
while(written < decrypted_buffer_size){
618
491
ret = (int)fwrite (decrypted_buffer + written, 1,
619
492
(size_t)decrypted_buffer_size - written,
620
493
stdout);
633
506
retval = -1;
634
507
}
635
508
}
636
637
/* Shutdown procedure */
638
639
mandos_end:
509
510
//shutdown procedure
511
512
if(debug){
513
fprintf(stderr, "Closing TLS session\n");
514
}
515
640
516
free(buffer);
517
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
518
exit:
641
519
close(tcp_sd);
642
gnutls_deinit (session);
520
gnutls_deinit (es.session);
521
gnutls_certificate_free_credentials (es.cred);
522
gnutls_global_deinit ();
643
523
return retval;
644
524
}
645
525
646
static void resolve_callback(AvahiSServiceResolver *r,
647
AvahiIfIndex interface,
648
AVAHI_GCC_UNUSED AvahiProtocol protocol,
649
AvahiResolverEvent event,
650
const char *name,
651
const char *type,
652
const char *domain,
653
const char *host_name,
654
const AvahiAddress *address,
655
uint16_t port,
656
AVAHI_GCC_UNUSED AvahiStringList *txt,
657
AVAHI_GCC_UNUSED AvahiLookupResultFlags
658
flags,
659
void* userdata) {
660
mandos_context *mc = userdata;
526
static AvahiSimplePoll *simple_poll = NULL;
527
static AvahiServer *server = NULL;
528
529
static void resolve_callback(
530
AvahiSServiceResolver *r,
531
AvahiIfIndex interface,
532
AVAHI_GCC_UNUSED AvahiProtocol protocol,
533
AvahiResolverEvent event,
534
const char *name,
535
const char *type,
536
const char *domain,
537
const char *host_name,
538
const AvahiAddress *address,
539
uint16_t port,
540
AVAHI_GCC_UNUSED AvahiStringList *txt,
541
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
542
AVAHI_GCC_UNUSED void* userdata) {
543
661
544
assert(r); /* Spurious warning */
662
545
663
546
/* Called whenever a service has been resolved successfully or
666
549
switch (event) {
667
550
default:
668
551
case AVAHI_RESOLVER_FAILURE:
669
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
670
" of type '%s' in domain '%s': %s\n", name, type, domain,
671
avahi_strerror(avahi_server_errno(mc->server)));
552
fprintf(stderr, "(Resolver) Failed to resolve service '%s' of"
553
" type '%s' in domain '%s': %s\n", name, type, domain,
554
avahi_strerror(avahi_server_errno(server)));
672
555
break;
673
556
674
557
case AVAHI_RESOLVER_FOUND:
676
559
char ip[AVAHI_ADDRESS_STR_MAX];
677
560
avahi_address_snprint(ip, sizeof(ip), address);
678
561
if(debug){
679
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
680
PRIu16 ") on port %d\n", name, host_name, ip,
681
interface, port);
562
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
563
" port %d\n", name, host_name, ip, port);
682
564
}
683
int ret = start_mandos_communication(ip, port, interface, mc);
565
int ret = start_mandos_communication(ip, port,
566
(unsigned int) interface);
684
567
if (ret == 0){
685
568
exit(EXIT_SUCCESS);
686
569
}
689
572
avahi_s_service_resolver_free(r);
690
573
}
691
574
692
static void browse_callback( AvahiSServiceBrowser *b,
693
AvahiIfIndex interface,
694
AvahiProtocol protocol,
695
AvahiBrowserEvent event,
696
const char *name,
697
const char *type,
698
const char *domain,
699
AVAHI_GCC_UNUSED AvahiLookupResultFlags
700
flags,
701
void* userdata) {
702
mandos_context *mc = userdata;
703
assert(b); /* Spurious warning */
704
705
/* Called whenever a new services becomes available on the LAN or
706
is removed from the LAN */
707
708
switch (event) {
709
default:
710
case AVAHI_BROWSER_FAILURE:
711
712
fprintf(stderr, "(Avahi browser) %s\n",
713
avahi_strerror(avahi_server_errno(mc->server)));
714
avahi_simple_poll_quit(mc->simple_poll);
715
return;
716
717
case AVAHI_BROWSER_NEW:
718
/* We ignore the returned Avahi resolver object. In the callback
719
function we free it. If the Avahi server is terminated before
720
the callback function is called the Avahi server will free the
721
resolver for us. */
722
723
if (!(avahi_s_service_resolver_new(mc->server, interface,
724
protocol, name, type, domain,
725
AVAHI_PROTO_INET6, 0,
726
resolve_callback, mc)))
727
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
728
name, avahi_strerror(avahi_server_errno(mc->server)));
729
break;
730
731
case AVAHI_BROWSER_REMOVE:
732
break;
733
734
case AVAHI_BROWSER_ALL_FOR_NOW:
735
case AVAHI_BROWSER_CACHE_EXHAUSTED:
736
if(debug){
737
fprintf(stderr, "No Mandos server found, still searching...\n");
575
static void browse_callback(
576
AvahiSServiceBrowser *b,
577
AvahiIfIndex interface,
578
AvahiProtocol protocol,
579
AvahiBrowserEvent event,
580
const char *name,
581
const char *type,
582
const char *domain,
583
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
584
void* userdata) {
585
586
AvahiServer *s = userdata;
587
assert(b); /* Spurious warning */
588
589
/* Called whenever a new services becomes available on the LAN or
590
is removed from the LAN */
591
592
switch (event) {
593
default:
594
case AVAHI_BROWSER_FAILURE:
595
596
fprintf(stderr, "(Browser) %s\n",
597
avahi_strerror(avahi_server_errno(server)));
598
avahi_simple_poll_quit(simple_poll);
599
return;
600
601
case AVAHI_BROWSER_NEW:
602
/* We ignore the returned resolver object. In the callback
603
function we free it. If the server is terminated before
604
the callback function is called the server will free
605
the resolver for us. */
606
607
if (!(avahi_s_service_resolver_new(s, interface, protocol, name,
608
type, domain,
609
AVAHI_PROTO_INET6, 0,
610
resolve_callback, s)))
611
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
612
avahi_strerror(avahi_server_errno(s)));
613
break;
614
615
case AVAHI_BROWSER_REMOVE:
616
break;
617
618
case AVAHI_BROWSER_ALL_FOR_NOW:
619
case AVAHI_BROWSER_CACHE_EXHAUSTED:
620
break;
738
621
}
739
break;
740
}
741
622
}
742
623
743
/* Combines file name and path and returns the malloced new
744
string. some sane checks could/should be added */
745
static const char *combinepath(const char *first, const char *second){
746
size_t f_len = strlen(first);
747
size_t s_len = strlen(second);
748
char *tmp = malloc(f_len + s_len + 2);
624
/* combinds file name and path and returns the malloced new string. som sane checks could/should be added */
625
const char *combinepath(const char *first, const char *second){
626
char *tmp;
627
tmp = malloc(strlen(first) + strlen(second) + 2);
749
628
if (tmp == NULL){
629
perror("malloc");
750
630
return NULL;
751
631
}
752
if(f_len > 0){
753
memcpy(tmp, first, f_len); /* Spurious warning */
754
}
755
tmp[f_len] = '/';
756
if(s_len > 0){
757
memcpy(tmp + f_len + 1, second, s_len); /* Spurious warning */
758
}
759
tmp[f_len + 1 + s_len] = '\0';
632
strcpy(tmp, first);
633
if (first[0] != '\0' and first[strlen(first) - 1] != '/'){
634
strcat(tmp, "/");
635
}
636
strcat(tmp, second);
760
637
return tmp;
761
638
}
762
639
763
640
764
int main(int argc, char *argv[]){
641
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
642
AvahiServerConfig config;
765
643
AvahiSServiceBrowser *sb = NULL;
766
644
int error;
767
645
int ret;
768
int exitcode = EXIT_SUCCESS;
646
int returncode = EXIT_SUCCESS;
769
647
const char *interface = "eth0";
770
struct ifreq network;
771
int sd;
772
uid_t uid;
773
gid_t gid;
774
char *connect_to = NULL;
775
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
776
const char *pubkeyfile = "pubkey.txt";
777
const char *seckeyfile = "seckey.txt";
778
mandos_context mc = { .simple_poll = NULL, .server = NULL,
779
.dh_bits = 1024, .priority = "SECURE256"};
780
bool gnutls_initalized = false;
781
782
{
783
struct argp_option options[] = {
784
{ .name = "debug", .key = 128,
785
.doc = "Debug mode", .group = 3 },
786
{ .name = "connect", .key = 'c',
787
.arg = "IP",
788
.doc = "Connect directly to a sepcified mandos server",
789
.group = 1 },
790
{ .name = "interface", .key = 'i',
791
.arg = "INTERFACE",
792
.doc = "Interface that Avahi will conntect through",
793
.group = 1 },
794
{ .name = "keydir", .key = 'd',
795
.arg = "KEYDIR",
796
.doc = "Directory where the openpgp keyring is",
797
.group = 1 },
798
{ .name = "seckey", .key = 's',
799
.arg = "SECKEY",
800
.doc = "Secret openpgp key for gnutls authentication",
801
.group = 1 },
802
{ .name = "pubkey", .key = 'p',
803
.arg = "PUBKEY",
804
.doc = "Public openpgp key for gnutls authentication",
805
.group = 2 },
806
{ .name = "dh-bits", .key = 129,
807
.arg = "BITS",
808
.doc = "dh-bits to use in gnutls communication",
809
.group = 2 },
810
{ .name = "priority", .key = 130,
811
.arg = "PRIORITY",
812
.doc = "GNUTLS priority", .group = 1 },
813
{ .name = NULL }
814
};
815
816
817
error_t parse_opt (int key, char *arg,
818
struct argp_state *state) {
819
/* Get the INPUT argument from `argp_parse', which we know is
820
a pointer to our plugin list pointer. */
821
switch (key) {
822
case 128:
823
debug = true;
824
break;
825
case 'c':
826
connect_to = arg;
827
break;
828
case 'i':
829
interface = arg;
830
break;
831
case 'd':
832
keydir = arg;
833
break;
834
case 's':
835
seckeyfile = arg;
836
break;
837
case 'p':
838
pubkeyfile = arg;
839
break;
840
case 129:
841
errno = 0;
842
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
843
if (errno){
844
perror("strtol");
845
exit(EXIT_FAILURE);
846
}
847
break;
848
case 130:
849
mc.priority = arg;
850
break;
851
case ARGP_KEY_ARG:
852
argp_usage (state);
853
break;
854
case ARGP_KEY_END:
855
break;
856
default:
857
return ARGP_ERR_UNKNOWN;
858
}
859
return 0;
860
}
861
862
struct argp argp = { .options = options, .parser = parse_opt,
863
.args_doc = "",
864
.doc = "Mandos client -- Get and decrypt"
865
" passwords from mandos server" };
866
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
867
if (ret == ARGP_ERR_UNKNOWN){
868
fprintf(stderr, "Unknown error while parsing arguments\n");
869
exitcode = EXIT_FAILURE;
870
goto end;
871
}
872
}
873
874
pubkeyfile = combinepath(keydir, pubkeyfile);
875
if (pubkeyfile == NULL){
876
perror("combinepath");
877
exitcode = EXIT_FAILURE;
878
goto end;
879
}
880
881
seckeyfile = combinepath(keydir, seckeyfile);
882
if (seckeyfile == NULL){
883
perror("combinepath");
884
goto end;
885
}
886
887
ret = init_gnutls_global(&mc, pubkeyfile, seckeyfile);
888
if (ret == -1){
889
fprintf(stderr, "init_gnutls_global\n");
890
goto end;
891
} else {
892
gnutls_initalized = true;
893
}
894
895
/* If the interface is down, bring it up */
896
{
897
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
898
if(sd < 0) {
899
perror("socket");
900
exitcode = EXIT_FAILURE;
901
goto end;
902
}
903
strcpy(network.ifr_name, interface); /* Spurious warning */
904
ret = ioctl(sd, SIOCGIFFLAGS, &network);
905
if(ret == -1){
906
perror("ioctl SIOCGIFFLAGS");
907
exitcode = EXIT_FAILURE;
908
goto end;
909
}
910
if((network.ifr_flags & IFF_UP) == 0){
911
network.ifr_flags |= IFF_UP;
912
ret = ioctl(sd, SIOCSIFFLAGS, &network);
913
if(ret == -1){
914
perror("ioctl SIOCSIFFLAGS");
915
exitcode = EXIT_FAILURE;
916
goto end;
917
}
918
}
919
close(sd);
920
}
921
922
uid = getuid();
923
gid = getgid();
924
925
ret = setuid(uid);
926
if (ret == -1){
927
perror("setuid");
928
}
929
930
setgid(gid);
931
if (ret == -1){
932
perror("setgid");
933
}
934
935
if_index = (AvahiIfIndex) if_nametoindex(interface);
936
if(if_index == 0){
937
fprintf(stderr, "No such interface: \"%s\"\n", interface);
938
exit(EXIT_FAILURE);
939
}
940
941
if(connect_to != NULL){
942
/* Connect directly, do not use Zeroconf */
943
/* (Mainly meant for debugging) */
944
char *address = strrchr(connect_to, ':');
945
if(address == NULL){
946
fprintf(stderr, "No colon in address\n");
947
exitcode = EXIT_FAILURE;
948
goto end;
949
}
950
errno = 0;
951
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
952
if(errno){
953
perror("Bad port number");
954
exitcode = EXIT_FAILURE;
955
goto end;
956
}
957
*address = '\0';
958
address = connect_to;
959
ret = start_mandos_communication(address, port, if_index, &mc);
960
if(ret < 0){
961
exitcode = EXIT_FAILURE;
962
} else {
963
exitcode = EXIT_SUCCESS;
964
}
965
goto end;
966
}
967
648
649
while (true){
650
static struct option long_options[] = {
651
{"debug", no_argument, (int *)&debug, 1},
652
{"interface", required_argument, 0, 'i'},
653
{"certdir", required_argument, 0, 'd'},
654
{"certkey", required_argument, 0, 'c'},
655
{"certfile", required_argument, 0, 'k'},
656
{0, 0, 0, 0} };
657
658
int option_index = 0;
659
ret = getopt_long (argc, argv, "i:", long_options,
660
&option_index);
661
662
if (ret == -1){
663
break;
664
}
665
666
switch(ret){
667
case 0:
668
break;
669
case 'i':
670
interface = optarg;
671
break;
672
case 'd':
673
certdir = optarg;
674
break;
675
case 'c':
676
certfile = optarg;
677
break;
678
case 'k':
679
certkey = optarg;
680
break;
681
default:
682
exit(EXIT_FAILURE);
683
}
684
}
685
686
certfile = combinepath(certdir, certfile);
687
if (certfile == NULL){
688
goto exit;
689
}
690
691
certkey = combinepath(certdir, certkey);
692
if (certkey == NULL){
693
goto exit;
694
}
695
968
696
if (not debug){
969
697
avahi_set_log_function(empty_log);
970
698
}
971
699
972
/* Initialize the pseudo-RNG for Avahi */
700
/* Initialize the psuedo-RNG */
973
701
srand((unsigned int) time(NULL));
974
975
/* Allocate main Avahi loop object */
976
mc.simple_poll = avahi_simple_poll_new();
977
if (mc.simple_poll == NULL) {
978
fprintf(stderr, "Avahi: Failed to create simple poll"
979
" object.\n");
980
exitcode = EXIT_FAILURE;
981
goto end;
982
}
983
984
{
985
AvahiServerConfig config;
986
/* Do not publish any local Zeroconf records */
987
avahi_server_config_init(&config);
988
config.publish_hinfo = 0;
989
config.publish_addresses = 0;
990
config.publish_workstation = 0;
991
config.publish_domain = 0;
992
993
/* Allocate a new server */
994
mc.server = avahi_server_new(avahi_simple_poll_get
995
(mc.simple_poll), &config, NULL,
996
NULL, &error);
997
998
/* Free the Avahi configuration data */
999
avahi_server_config_free(&config);
1000
}
1001
1002
/* Check if creating the Avahi server object succeeded */
1003
if (mc.server == NULL) {
1004
fprintf(stderr, "Failed to create Avahi server: %s\n",
702
703
/* Allocate main loop object */
704
if (!(simple_poll = avahi_simple_poll_new())) {
705
fprintf(stderr, "Failed to create simple poll object.\n");
706
707
goto exit;
708
}
709
710
/* Do not publish any local records */
711
avahi_server_config_init(&config);
712
config.publish_hinfo = 0;
713
config.publish_addresses = 0;
714
config.publish_workstation = 0;
715
config.publish_domain = 0;
716
717
/* Allocate a new server */
718
server = avahi_server_new(avahi_simple_poll_get(simple_poll),
719
&config, NULL, NULL, &error);
720
721
/* Free the configuration data */
722
avahi_server_config_free(&config);
723
724
/* Check if creating the server object succeeded */
725
if (!server) {
726
fprintf(stderr, "Failed to create server: %s\n",
1005
727
avahi_strerror(error));
1006
exitcode = EXIT_FAILURE;
1007
goto end;
728
returncode = EXIT_FAILURE;
729
goto exit;
1008
730
}
1009
731
1010
/* Create the Avahi service browser */
1011
sb = avahi_s_service_browser_new(mc.server, if_index,
732
/* Create the service browser */
733
sb = avahi_s_service_browser_new(server,
734
(AvahiIfIndex)
735
if_nametoindex(interface),
1012
736
AVAHI_PROTO_INET6,
1013
737
"_mandos._tcp", NULL, 0,
1014
browse_callback, &mc);
1015
if (sb == NULL) {
738
browse_callback, server);
739
if (!sb) {
1016
740
fprintf(stderr, "Failed to create service browser: %s\n",
1017
avahi_strerror(avahi_server_errno(mc.server)));
1018
exitcode = EXIT_FAILURE;
1019
goto end;
741
avahi_strerror(avahi_server_errno(server)));
742
returncode = EXIT_FAILURE;
743
goto exit;
1020
744
}
1021
745
1022
746
/* Run the main loop */
1023
747
1024
748
if (debug){
1025
fprintf(stderr, "Starting Avahi loop search\n");
749
fprintf(stderr, "Starting avahi loop search\n");
1026
750
}
1027
751
1028
avahi_simple_poll_loop(mc.simple_poll);
752
avahi_simple_poll_loop(simple_poll);
1029
753
1030
end:
754
exit:
1031
755
1032
756
if (debug){
1033
757
fprintf(stderr, "%s exiting\n", argv[0]);
1034
758
}
1035
759
1036
760
/* Cleanup things */
1037
if (sb != NULL)
761
if (sb)
1038
762
avahi_s_service_browser_free(sb);
1039
763
1040
if (mc.server != NULL)
1041
avahi_server_free(mc.server);
1042
1043
if (mc.simple_poll != NULL)
1044
avahi_simple_poll_free(mc.simple_poll);
1045
free(pubkeyfile);
1046
free(seckeyfile);
1047
1048
if (gnutls_initalized){
1049
gnutls_certificate_free_credentials(mc.cred);
1050
gnutls_global_deinit ();
1051
}
764
if (server)
765
avahi_server_free(server);
766
767
if (simple_poll)
768
avahi_simple_poll_free(simple_poll);
769
free(certfile);
770
free(certkey);
1052
771
1053
return exitcode;
772
return returncode;
1054
773
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0