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- Committer: Björn Påhlsson
- Date: 2008-08-24 09:39:06 UTC
- mfrom: (97 mandos)
- mto: (237.7.1 mandos) (24.1.154 mandos)
- mto: This revision was merged to the branch mainline in revision 99.
- Revision ID: belorn@braxen-20080824093906-eg4koyxsg9rc9qng
merge + small bugfix
- files added:
- COPYING
- files removed:
- ca.pem
- files renamed:
- server.py => mandos
- server.conf => mandos.conf
- plugbasedclient.c => plugin-runner.c
- plugins.d/passprompt.c => plugins.d/password-prompt.c
- plugins.d/mandosclient.c => plugins.d/password-request.c
- files modified:
- Makefile
added
removed
plugins.d/password-request.c
32
32
#define _LARGEFILE_SOURCE
33
33
#define _FILE_OFFSET_BITS 64
34
34
35
#include <stdio.h>
36
#include <assert.h>
37
#include <stdlib.h>
38
#include <time.h>
39
#include <net/if.h> /* if_nametoindex */
40
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY(), asprintf() */
36
37
#include <stdio.h> /* fprintf(), stderr, fwrite(),
38
stdout, ferror() */
39
#include <stdint.h> /* uint16_t, uint32_t */
40
#include <stddef.h> /* NULL, size_t, ssize_t */
41
#include <stdlib.h> /* free(), EXIT_SUCCESS, EXIT_FAILURE,
42
srand() */
43
#include <stdbool.h> /* bool, true */
44
#include <string.h> /* memset(), strcmp(), strlen(),
45
strerror(), asprintf(), strcpy() */
46
#include <sys/ioctl.h> /* ioctl */
47
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
48
sockaddr_in6, PF_INET6,
49
SOCK_STREAM, INET6_ADDRSTRLEN,
50
uid_t, gid_t */
51
#include <inttypes.h> /* PRIu16 */
52
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
53
struct in6_addr, inet_pton(),
54
connect() */
55
#include <assert.h> /* assert() */
56
#include <errno.h> /* perror(), errno */
57
#include <time.h> /* time() */
58
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
59
SIOCSIFFLAGS, if_indextoname(),
60
if_nametoindex(), IF_NAMESIZE */
61
#include <unistd.h> /* close(), SEEK_SET, off_t, write(),
62
getuid(), getgid(), setuid(),
63
setgid() */
64
#include <netinet/in.h>
65
#include <arpa/inet.h> /* inet_pton(), htons */
66
#include <iso646.h> /* not, and */
67
#include <argp.h> /* struct argp_option, error_t, struct
68
argp_state, struct argp,
69
argp_parse(), ARGP_KEY_ARG,
70
ARGP_KEY_END, ARGP_ERR_UNKNOWN */
71
72
/* Avahi */
73
/* All Avahi types, constants and functions
74
Avahi*, avahi_*,
75
AVAHI_* */
41
76
#include <avahi-core/core.h>
42
77
#include <avahi-core/lookup.h>
43
78
#include <avahi-core/log.h>
45
80
#include <avahi-common/malloc.h>
46
81
#include <avahi-common/error.h>
47
82
48
//mandos client part
49
#include <sys/types.h> /* socket(), inet_pton() */
50
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
51
struct in6_addr, inet_pton() */
52
#include <gnutls/gnutls.h> /* All GnuTLS stuff */
53
#include <gnutls/openpgp.h> /* GnuTLS with openpgp stuff */
54
55
#include <unistd.h> /* close() */
56
#include <netinet/in.h>
57
#include <stdbool.h> /* true */
58
#include <string.h> /* memset */
59
#include <arpa/inet.h> /* inet_pton() */
60
#include <iso646.h> /* not */
61
62
// gpgme
63
#include <errno.h> /* perror() */
64
#include <gpgme.h>
65
66
// getopt long
67
#include <getopt.h>
83
/* GnuTLS */
84
#include <gnutls/gnutls.h> /* All GnuTLS types, constants and
85
functions:
86
gnutls_*
87
init_gnutls_session(),
88
GNUTLS_* */
89
#include <gnutls/openpgp.h> /* gnutls_certificate_set_openpgp_key_file(),
90
GNUTLS_OPENPGP_FMT_BASE64 */
91
92
/* GPGME */
93
#include <gpgme.h> /* All GPGME types, constants and
94
functions:
95
gpgme_*
96
GPGME_PROTOCOL_OpenPGP,
97
GPG_ERR_NO_* */
68
98
69
99
#define BUFFER_SIZE 256
70
#define DH_BITS 1024
71
72
const char *certdir = "/conf/conf.d/cryptkeyreq/";
73
const char *certfile = "openpgp-client.txt";
74
const char *certkey = "openpgp-client-key.txt";
75
100
76
101
bool debug = false;
102
static const char *keydir = "/conf/conf.d/mandos";
103
static const char mandos_protocol_version[] = "1";
104
const char *argp_program_version = "password-request 1.0";
105
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
77
106
107
/* Used for passing in values through the Avahi callback functions */
78
108
typedef struct {
79
gnutls_session_t session;
109
AvahiSimplePoll *simple_poll;
110
AvahiServer *server;
80
111
gnutls_certificate_credentials_t cred;
112
unsigned int dh_bits;
81
113
gnutls_dh_params_t dh_params;
82
} encrypted_session;
83
84
85
ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
86
char **new_packet, const char *homedir){
114
const char *priority;
115
} mandos_context;
116
117
/*
118
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
119
* "buffer_capacity" is how much is currently allocated,
120
* "buffer_length" is how much is already used.
121
*/
122
size_t adjustbuffer(char **buffer, size_t buffer_length,
123
size_t buffer_capacity){
124
if (buffer_length + BUFFER_SIZE > buffer_capacity){
125
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
126
if (buffer == NULL){
127
return 0;
128
}
129
buffer_capacity += BUFFER_SIZE;
130
}
131
return buffer_capacity;
132
}
133
134
/*
135
* Decrypt OpenPGP data using keyrings in HOMEDIR.
136
* Returns -1 on error
137
*/
138
static ssize_t pgp_packet_decrypt (const char *cryptotext,
139
size_t crypto_size,
140
char **plaintext,
141
const char *homedir){
87
142
gpgme_data_t dh_crypto, dh_plain;
88
143
gpgme_ctx_t ctx;
89
144
gpgme_error_t rc;
90
145
ssize_t ret;
91
ssize_t new_packet_capacity = 0;
92
ssize_t new_packet_length = 0;
146
size_t plaintext_capacity = 0;
147
ssize_t plaintext_length = 0;
93
148
gpgme_engine_info_t engine_info;
94
149
95
150
if (debug){
96
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
151
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
97
152
}
98
153
99
154
/* Init GPGME */
105
160
return -1;
106
161
}
107
162
108
/* Set GPGME home directory */
163
/* Set GPGME home directory for the OpenPGP engine only */
109
164
rc = gpgme_get_engine_info (&engine_info);
110
165
if (rc != GPG_ERR_NO_ERROR){
111
166
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
121
176
engine_info = engine_info->next;
122
177
}
123
178
if(engine_info == NULL){
124
fprintf(stderr, "Could not set home dir to %s\n", homedir);
179
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
125
180
return -1;
126
181
}
127
182
128
/* Create new GPGME data buffer from packet buffer */
129
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
183
/* Create new GPGME data buffer from memory cryptotext */
184
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
185
0);
130
186
if (rc != GPG_ERR_NO_ERROR){
131
187
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
132
188
gpgme_strsource(rc), gpgme_strerror(rc));
138
194
if (rc != GPG_ERR_NO_ERROR){
139
195
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
140
196
gpgme_strsource(rc), gpgme_strerror(rc));
197
gpgme_data_release(dh_crypto);
141
198
return -1;
142
199
}
143
200
146
203
if (rc != GPG_ERR_NO_ERROR){
147
204
fprintf(stderr, "bad gpgme_new: %s: %s\n",
148
205
gpgme_strsource(rc), gpgme_strerror(rc));
149
return -1;
206
plaintext_length = -1;
207
goto decrypt_end;
150
208
}
151
209
152
/* Decrypt data from the FILE pointer to the plaintext data
153
buffer */
210
/* Decrypt data from the cryptotext data buffer to the plaintext
211
data buffer */
154
212
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
155
213
if (rc != GPG_ERR_NO_ERROR){
156
214
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
157
215
gpgme_strsource(rc), gpgme_strerror(rc));
158
return -1;
216
plaintext_length = -1;
217
goto decrypt_end;
159
218
}
160
219
161
220
if(debug){
162
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
221
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
163
222
}
164
223
165
224
if (debug){
166
225
gpgme_decrypt_result_t result;
167
226
result = gpgme_op_decrypt_result(ctx);
170
229
} else {
171
230
fprintf(stderr, "Unsupported algorithm: %s\n",
172
231
result->unsupported_algorithm);
173
fprintf(stderr, "Wrong key usage: %d\n",
232
fprintf(stderr, "Wrong key usage: %u\n",
174
233
result->wrong_key_usage);
175
234
if(result->file_name != NULL){
176
235
fprintf(stderr, "File name: %s\n", result->file_name);
191
250
}
192
251
}
193
252
194
/* Delete the GPGME FILE pointer cryptotext data buffer */
195
gpgme_data_release(dh_crypto);
196
197
253
/* Seek back to the beginning of the GPGME plaintext data buffer */
198
254
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
199
255
perror("pgpme_data_seek");
256
plaintext_length = -1;
257
goto decrypt_end;
200
258
}
201
259
202
*new_packet = 0;
260
*plaintext = NULL;
203
261
while(true){
204
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
205
*new_packet = realloc(*new_packet,
206
(unsigned int)new_packet_capacity
207
+ BUFFER_SIZE);
208
if (*new_packet == NULL){
209
perror("realloc");
210
return -1;
211
}
212
new_packet_capacity += BUFFER_SIZE;
262
plaintext_capacity = adjustbuffer(plaintext,
263
(size_t)plaintext_length,
264
plaintext_capacity);
265
if (plaintext_capacity == 0){
266
perror("adjustbuffer");
267
plaintext_length = -1;
268
goto decrypt_end;
213
269
}
214
270
215
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
271
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
216
272
BUFFER_SIZE);
217
273
/* Print the data, if any */
218
274
if (ret == 0){
275
/* EOF */
219
276
break;
220
277
}
221
278
if(ret < 0){
222
279
perror("gpgme_data_read");
223
return -1;
280
plaintext_length = -1;
281
goto decrypt_end;
224
282
}
225
new_packet_length += ret;
283
plaintext_length += ret;
226
284
}
227
285
228
/* FIXME: check characters before printing to screen so to not print
229
terminal control characters */
230
/* if(debug){ */
231
/* fprintf(stderr, "decrypted password is: "); */
232
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
233
/* fprintf(stderr, "\n"); */
234
/* } */
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);
235
298
236
299
/* Delete the GPGME plaintext data buffer */
237
300
gpgme_data_release(dh_plain);
238
return new_packet_length;
301
return plaintext_length;
239
302
}
240
303
241
304
static const char * safer_gnutls_strerror (int value) {
242
const char *ret = gnutls_strerror (value);
305
const char *ret = gnutls_strerror (value); /* Spurious warning */
243
306
if (ret == NULL)
244
307
ret = "(unknown)";
245
308
return ret;
246
309
}
247
310
248
void debuggnutls(__attribute__((unused)) int level,
249
const char* string){
250
fprintf(stderr, "%s", string);
311
/* GnuTLS log function callback */
312
static void debuggnutls(__attribute__((unused)) int level,
313
const char* string){
314
fprintf(stderr, "GnuTLS: %s", string);
251
315
}
252
316
253
int initgnutls(encrypted_session *es){
254
const char *err;
317
static int init_gnutls_global(mandos_context *mc,
318
const char *pubkeyfilename,
319
const char *seckeyfilename){
255
320
int ret;
256
321
257
322
if(debug){
258
323
fprintf(stderr, "Initializing GnuTLS\n");
259
324
}
260
261
if ((ret = gnutls_global_init ())
262
!= GNUTLS_E_SUCCESS) {
263
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
325
326
ret = gnutls_global_init();
327
if (ret != GNUTLS_E_SUCCESS) {
328
fprintf (stderr, "GnuTLS global_init: %s\n",
329
safer_gnutls_strerror(ret));
264
330
return -1;
265
331
}
266
332
267
333
if (debug){
334
/* "Use a log level over 10 to enable all debugging options."
335
* - GnuTLS manual
336
*/
268
337
gnutls_global_set_log_level(11);
269
338
gnutls_global_set_log_function(debuggnutls);
270
339
}
271
340
272
/* openpgp credentials */
273
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
274
!= GNUTLS_E_SUCCESS) {
275
fprintf (stderr, "memory error: %s\n",
341
/* OpenPGP credentials */
342
gnutls_certificate_allocate_credentials(&mc->cred);
343
if (ret != GNUTLS_E_SUCCESS){
344
fprintf (stderr, "GnuTLS memory error: %s\n", /* Spurious
345
warning */
276
346
safer_gnutls_strerror(ret));
347
gnutls_global_deinit ();
277
348
return -1;
278
349
}
279
350
280
351
if(debug){
281
352
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
282
" and keyfile %s as GnuTLS credentials\n", certfile,
283
certkey);
353
" and keyfile %s as GnuTLS credentials\n", pubkeyfilename,
354
seckeyfilename);
284
355
}
285
356
286
357
ret = gnutls_certificate_set_openpgp_key_file
287
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
358
(mc->cred, pubkeyfilename, seckeyfilename,
359
GNUTLS_OPENPGP_FMT_BASE64);
288
360
if (ret != GNUTLS_E_SUCCESS) {
289
fprintf
290
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
291
" '%s')\n",
292
ret, certfile, certkey);
293
fprintf(stdout, "The Error is: %s\n",
361
fprintf(stderr,
362
"Error[%d] while reading the OpenPGP key pair ('%s',"
363
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
364
fprintf(stdout, "The GnuTLS error is: %s\n",
294
365
safer_gnutls_strerror(ret));
295
return -1;
296
}
297
298
//GnuTLS server initialization
299
if ((ret = gnutls_dh_params_init (&es->dh_params))
300
!= GNUTLS_E_SUCCESS) {
301
fprintf (stderr, "Error in dh parameter initialization: %s\n",
302
safer_gnutls_strerror(ret));
303
return -1;
304
}
305
306
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
307
!= GNUTLS_E_SUCCESS) {
308
fprintf (stderr, "Error in prime generation: %s\n",
309
safer_gnutls_strerror(ret));
310
return -1;
311
}
312
313
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
314
315
// GnuTLS session creation
316
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
317
!= GNUTLS_E_SUCCESS){
366
goto globalfail;
367
}
368
369
/* GnuTLS server initialization */
370
ret = gnutls_dh_params_init(&mc->dh_params);
371
if (ret != GNUTLS_E_SUCCESS) {
372
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
373
" %s\n", safer_gnutls_strerror(ret));
374
goto globalfail;
375
}
376
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
377
if (ret != GNUTLS_E_SUCCESS) {
378
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
379
safer_gnutls_strerror(ret));
380
goto globalfail;
381
}
382
383
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
384
385
return 0;
386
387
globalfail:
388
389
gnutls_certificate_free_credentials(mc->cred);
390
gnutls_global_deinit();
391
return -1;
392
393
}
394
395
static int init_gnutls_session(mandos_context *mc,
396
gnutls_session_t *session){
397
int ret;
398
/* GnuTLS session creation */
399
ret = gnutls_init(session, GNUTLS_SERVER);
400
if (ret != GNUTLS_E_SUCCESS){
318
401
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
319
402
safer_gnutls_strerror(ret));
320
403
}
321
404
322
if ((ret = gnutls_priority_set_direct (es->session, "NORMAL", &err))
323
!= GNUTLS_E_SUCCESS) {
324
fprintf(stderr, "Syntax error at: %s\n", err);
325
fprintf(stderr, "GnuTLS error: %s\n",
326
safer_gnutls_strerror(ret));
327
return -1;
405
{
406
const char *err;
407
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
408
if (ret != GNUTLS_E_SUCCESS) {
409
fprintf(stderr, "Syntax error at: %s\n", err);
410
fprintf(stderr, "GnuTLS error: %s\n",
411
safer_gnutls_strerror(ret));
412
gnutls_deinit (*session);
413
return -1;
414
}
328
415
}
329
416
330
if ((ret = gnutls_credentials_set
331
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
332
!= GNUTLS_E_SUCCESS) {
333
fprintf(stderr, "Error setting a credentials set: %s\n",
417
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
418
mc->cred);
419
if (ret != GNUTLS_E_SUCCESS) {
420
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
334
421
safer_gnutls_strerror(ret));
422
gnutls_deinit (*session);
335
423
return -1;
336
424
}
337
425
338
426
/* ignore client certificate if any. */
339
gnutls_certificate_server_set_request (es->session,
427
gnutls_certificate_server_set_request (*session,
340
428
GNUTLS_CERT_IGNORE);
341
429
342
gnutls_dh_set_prime_bits (es->session, DH_BITS);
430
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
343
431
344
432
return 0;
345
433
}
346
434
347
void empty_log(__attribute__((unused)) AvahiLogLevel level,
348
__attribute__((unused)) const char *txt){}
435
/* Avahi log function callback */
436
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
437
__attribute__((unused)) const char *txt){}
349
438
350
int start_mandos_communication(const char *ip, uint16_t port,
351
AvahiIfIndex if_index){
439
/* Called when a Mandos server is found */
440
static int start_mandos_communication(const char *ip, uint16_t port,
441
AvahiIfIndex if_index,
442
mandos_context *mc){
352
443
int ret, tcp_sd;
353
struct sockaddr_in6 to;
354
encrypted_session es;
444
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
355
445
char *buffer = NULL;
356
446
char *decrypted_buffer;
357
447
size_t buffer_length = 0;
358
448
size_t buffer_capacity = 0;
359
449
ssize_t decrypted_buffer_size;
360
size_t written = 0;
450
size_t written;
361
451
int retval = 0;
362
452
char interface[IF_NAMESIZE];
453
gnutls_session_t session;
454
455
ret = init_gnutls_session (mc, &session);
456
if (ret != 0){
457
return -1;
458
}
363
459
364
460
if(debug){
365
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
366
ip, port);
461
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
462
"\n", ip, port);
367
463
}
368
464
369
465
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
371
467
perror("socket");
372
468
return -1;
373
469
}
374
375
if(if_indextoname((unsigned int)if_index, interface) == NULL){
376
if(debug){
470
471
if(debug){
472
if(if_indextoname((unsigned int)if_index, interface) == NULL){
377
473
perror("if_indextoname");
474
return -1;
378
475
}
379
return -1;
380
}
381
382
if(debug){
383
476
fprintf(stderr, "Binding to interface %s\n", interface);
384
477
}
385
478
386
memset(&to,0,sizeof(to)); /* Spurious warning */
387
to.sin6_family = AF_INET6;
388
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
479
memset(&to, 0, sizeof(to));
480
to.in6.sin6_family = AF_INET6;
481
/* It would be nice to have a way to detect if we were passed an
482
IPv4 address here. Now we assume an IPv6 address. */
483
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
389
484
if (ret < 0 ){
390
485
perror("inet_pton");
391
486
return -1;
392
}
487
}
393
488
if(ret == 0){
394
489
fprintf(stderr, "Bad address: %s\n", ip);
395
490
return -1;
396
491
}
397
to.sin6_port = htons(port); /* Spurious warning */
492
to.in6.sin6_port = htons(port); /* Spurious warning */
398
493
399
to.sin6_scope_id = (uint32_t)if_index;
494
to.in6.sin6_scope_id = (uint32_t)if_index;
400
495
401
496
if(debug){
402
fprintf(stderr, "Connection to: %s, port %d\n", ip, port);
403
/* char addrstr[INET6_ADDRSTRLEN]; */
404
/* if(inet_ntop(to.sin6_family, &(to.sin6_addr), addrstr, */
405
/* sizeof(addrstr)) == NULL){ */
406
/* perror("inet_ntop"); */
407
/* } else { */
408
/* fprintf(stderr, "Really connecting to: %s, port %d\n", */
409
/* addrstr, ntohs(to.sin6_port)); */
410
/* } */
497
fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
498
port);
499
char addrstr[INET6_ADDRSTRLEN] = "";
500
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
501
sizeof(addrstr)) == NULL){
502
perror("inet_ntop");
503
} else {
504
if(strcmp(addrstr, ip) != 0){
505
fprintf(stderr, "Canonical address form: %s\n", addrstr);
506
}
507
}
411
508
}
412
509
413
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
510
ret = connect(tcp_sd, &to.in, sizeof(to));
414
511
if (ret < 0){
415
512
perror("connect");
416
513
return -1;
417
514
}
418
419
ret = initgnutls (&es);
420
if (ret != 0){
421
retval = -1;
422
return -1;
515
516
const char *out = mandos_protocol_version;
517
written = 0;
518
while (true){
519
size_t out_size = strlen(out);
520
ret = TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
521
out_size - written));
522
if (ret == -1){
523
perror("write");
524
retval = -1;
525
goto mandos_end;
526
}
527
written += (size_t)ret;
528
if(written < out_size){
529
continue;
530
} else {
531
if (out == mandos_protocol_version){
532
written = 0;
533
out = "\r\n";
534
} else {
535
break;
536
}
537
}
423
538
}
424
425
gnutls_transport_set_ptr (es.session,
426
(gnutls_transport_ptr_t) tcp_sd);
427
539
428
540
if(debug){
429
541
fprintf(stderr, "Establishing TLS session with %s\n", ip);
430
542
}
431
543
432
ret = gnutls_handshake (es.session);
544
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
545
546
do{
547
ret = gnutls_handshake (session);
548
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
433
549
434
550
if (ret != GNUTLS_E_SUCCESS){
435
551
if(debug){
436
fprintf(stderr, "\n*** Handshake failed ***\n");
552
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
437
553
gnutls_perror (ret);
438
554
}
439
555
retval = -1;
440
goto exit;
556
goto mandos_end;
441
557
}
442
558
443
//Retrieve OpenPGP packet that contains the wanted password
559
/* Read OpenPGP packet that contains the wanted password */
444
560
445
561
if(debug){
446
562
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
448
564
}
449
565
450
566
while(true){
451
if (buffer_length + BUFFER_SIZE > buffer_capacity){
452
buffer = realloc(buffer, buffer_capacity + BUFFER_SIZE);
453
if (buffer == NULL){
454
perror("realloc");
455
goto exit;
456
}
457
buffer_capacity += BUFFER_SIZE;
567
buffer_capacity = adjustbuffer(&buffer, buffer_length,
568
buffer_capacity);
569
if (buffer_capacity == 0){
570
perror("adjustbuffer");
571
retval = -1;
572
goto mandos_end;
458
573
}
459
574
460
ret = gnutls_record_recv
461
(es.session, buffer+buffer_length, BUFFER_SIZE);
575
ret = gnutls_record_recv(session, buffer+buffer_length,
576
BUFFER_SIZE);
462
577
if (ret == 0){
463
578
break;
464
579
}
468
583
case GNUTLS_E_AGAIN:
469
584
break;
470
585
case GNUTLS_E_REHANDSHAKE:
471
ret = gnutls_handshake (es.session);
586
do{
587
ret = gnutls_handshake (session);
588
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
472
589
if (ret < 0){
473
fprintf(stderr, "\n*** Handshake failed ***\n");
590
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
474
591
gnutls_perror (ret);
475
592
retval = -1;
476
goto exit;
593
goto mandos_end;
477
594
}
478
595
break;
479
596
default:
480
597
fprintf(stderr, "Unknown error while reading data from"
481
" encrypted session with mandos server\n");
598
" encrypted session with Mandos server\n");
482
599
retval = -1;
483
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
484
goto exit;
600
gnutls_bye (session, GNUTLS_SHUT_RDWR);
601
goto mandos_end;
485
602
}
486
603
} else {
487
604
buffer_length += (size_t) ret;
488
605
}
489
606
}
490
607
608
if(debug){
609
fprintf(stderr, "Closing TLS session\n");
610
}
611
612
gnutls_bye (session, GNUTLS_SHUT_RDWR);
613
491
614
if (buffer_length > 0){
492
615
decrypted_buffer_size = pgp_packet_decrypt(buffer,
493
616
buffer_length,
494
617
&decrypted_buffer,
495
certdir);
618
keydir);
496
619
if (decrypted_buffer_size >= 0){
620
written = 0;
497
621
while(written < (size_t) decrypted_buffer_size){
498
622
ret = (int)fwrite (decrypted_buffer + written, 1,
499
623
(size_t)decrypted_buffer_size - written,
513
637
retval = -1;
514
638
}
515
639
}
516
517
//shutdown procedure
518
519
if(debug){
520
fprintf(stderr, "Closing TLS session\n");
521
}
522
640
641
/* Shutdown procedure */
642
643
mandos_end:
523
644
free(buffer);
524
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
525
exit:
526
645
close(tcp_sd);
527
gnutls_deinit (es.session);
528
gnutls_certificate_free_credentials (es.cred);
529
gnutls_global_deinit ();
646
gnutls_deinit (session);
530
647
return retval;
531
648
}
532
649
533
static AvahiSimplePoll *simple_poll = NULL;
534
static AvahiServer *server = NULL;
535
536
static void resolve_callback(
537
AvahiSServiceResolver *r,
538
AvahiIfIndex interface,
539
AVAHI_GCC_UNUSED AvahiProtocol protocol,
540
AvahiResolverEvent event,
541
const char *name,
542
const char *type,
543
const char *domain,
544
const char *host_name,
545
const AvahiAddress *address,
546
uint16_t port,
547
AVAHI_GCC_UNUSED AvahiStringList *txt,
548
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
549
AVAHI_GCC_UNUSED void* userdata) {
550
551
assert(r); /* Spurious warning */
650
static void resolve_callback(AvahiSServiceResolver *r,
651
AvahiIfIndex interface,
652
AVAHI_GCC_UNUSED AvahiProtocol protocol,
653
AvahiResolverEvent event,
654
const char *name,
655
const char *type,
656
const char *domain,
657
const char *host_name,
658
const AvahiAddress *address,
659
uint16_t port,
660
AVAHI_GCC_UNUSED AvahiStringList *txt,
661
AVAHI_GCC_UNUSED AvahiLookupResultFlags
662
flags,
663
void* userdata) {
664
mandos_context *mc = userdata;
665
assert(r);
552
666
553
667
/* Called whenever a service has been resolved successfully or
554
668
timed out */
556
670
switch (event) {
557
671
default:
558
672
case AVAHI_RESOLVER_FAILURE:
559
fprintf(stderr, "(Resolver) Failed to resolve service '%s' of"
560
" type '%s' in domain '%s': %s\n", name, type, domain,
561
avahi_strerror(avahi_server_errno(server)));
673
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
674
" of type '%s' in domain '%s': %s\n", name, type, domain,
675
avahi_strerror(avahi_server_errno(mc->server)));
562
676
break;
563
677
564
678
case AVAHI_RESOLVER_FOUND:
566
680
char ip[AVAHI_ADDRESS_STR_MAX];
567
681
avahi_address_snprint(ip, sizeof(ip), address);
568
682
if(debug){
569
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
570
" port %d\n", name, host_name, ip, port);
683
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
684
PRIu16 ") on port %d\n", name, host_name, ip,
685
interface, port);
571
686
}
572
int ret = start_mandos_communication(ip, port, interface);
687
int ret = start_mandos_communication(ip, port, interface, mc);
573
688
if (ret == 0){
574
exit(EXIT_SUCCESS);
689
avahi_simple_poll_quit(mc->simple_poll);
575
690
}
576
691
}
577
692
}
578
693
avahi_s_service_resolver_free(r);
579
694
}
580
695
581
static void browse_callback(
582
AvahiSServiceBrowser *b,
583
AvahiIfIndex interface,
584
AvahiProtocol protocol,
585
AvahiBrowserEvent event,
586
const char *name,
587
const char *type,
588
const char *domain,
589
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
590
void* userdata) {
591
592
AvahiServer *s = userdata;
593
assert(b); /* Spurious warning */
594
595
/* Called whenever a new services becomes available on the LAN or
596
is removed from the LAN */
597
598
switch (event) {
599
default:
600
case AVAHI_BROWSER_FAILURE:
601
602
fprintf(stderr, "(Browser) %s\n",
603
avahi_strerror(avahi_server_errno(server)));
604
avahi_simple_poll_quit(simple_poll);
605
return;
606
607
case AVAHI_BROWSER_NEW:
608
/* We ignore the returned resolver object. In the callback
609
function we free it. If the server is terminated before
610
the callback function is called the server will free
611
the resolver for us. */
612
613
if (!(avahi_s_service_resolver_new(s, interface, protocol, name,
614
type, domain,
615
AVAHI_PROTO_INET6, 0,
616
resolve_callback, s)))
617
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
618
avahi_strerror(avahi_server_errno(s)));
619
break;
620
621
case AVAHI_BROWSER_REMOVE:
622
break;
623
624
case AVAHI_BROWSER_ALL_FOR_NOW:
625
case AVAHI_BROWSER_CACHE_EXHAUSTED:
626
break;
696
static void browse_callback( AvahiSServiceBrowser *b,
697
AvahiIfIndex interface,
698
AvahiProtocol protocol,
699
AvahiBrowserEvent event,
700
const char *name,
701
const char *type,
702
const char *domain,
703
AVAHI_GCC_UNUSED AvahiLookupResultFlags
704
flags,
705
void* userdata) {
706
mandos_context *mc = userdata;
707
assert(b);
708
709
/* Called whenever a new services becomes available on the LAN or
710
is removed from the LAN */
711
712
switch (event) {
713
default:
714
case AVAHI_BROWSER_FAILURE:
715
716
fprintf(stderr, "(Avahi browser) %s\n",
717
avahi_strerror(avahi_server_errno(mc->server)));
718
avahi_simple_poll_quit(mc->simple_poll);
719
return;
720
721
case AVAHI_BROWSER_NEW:
722
/* We ignore the returned Avahi resolver object. In the callback
723
function we free it. If the Avahi server is terminated before
724
the callback function is called the Avahi server will free the
725
resolver for us. */
726
727
if (!(avahi_s_service_resolver_new(mc->server, interface,
728
protocol, name, type, domain,
729
AVAHI_PROTO_INET6, 0,
730
resolve_callback, mc)))
731
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
732
name, avahi_strerror(avahi_server_errno(mc->server)));
733
break;
734
735
case AVAHI_BROWSER_REMOVE:
736
break;
737
738
case AVAHI_BROWSER_ALL_FOR_NOW:
739
case AVAHI_BROWSER_CACHE_EXHAUSTED:
740
if(debug){
741
fprintf(stderr, "No Mandos server found, still searching...\n");
627
742
}
743
break;
744
}
628
745
}
629
746
630
/* combinds file name and path and returns the malloced new string. som sane checks could/should be added */
631
const char *combinepath(const char *first, const char *second){
747
/* Combines file name and path and returns the malloced new
748
string. some sane checks could/should be added */
749
static char *combinepath(const char *first, const char *second){
632
750
char *tmp;
633
tmp = malloc(strlen(first) + strlen(second) + 2);
634
if (tmp == NULL){
635
perror("malloc");
751
int ret = asprintf(&tmp, "%s/%s", first, second);
752
if(ret < 0){
636
753
return NULL;
637
754
}
638
strcpy(tmp, first);
639
if (first[0] != '\0' and first[strlen(first) - 1] != '/'){
640
strcat(tmp, "/");
641
}
642
strcat(tmp, second);
643
755
return tmp;
644
756
}
645
757
646
758
647
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
648
AvahiServerConfig config;
759
int main(int argc, char *argv[]){
649
760
AvahiSServiceBrowser *sb = NULL;
650
761
int error;
651
762
int ret;
652
int returncode = EXIT_SUCCESS;
653
const char *interface = NULL;
763
int exitcode = EXIT_SUCCESS;
764
const char *interface = "eth0";
765
struct ifreq network;
766
int sd;
767
uid_t uid;
768
gid_t gid;
769
char *connect_to = NULL;
654
770
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
655
char *connect_to = NULL;
656
657
while (true){
658
static struct option long_options[] = {
659
{"debug", no_argument, (int *)&debug, 1},
660
{"connect", required_argument, 0, 'C'},
661
{"interface", required_argument, 0, 'i'},
662
{"certdir", required_argument, 0, 'd'},
663
{"certkey", required_argument, 0, 'c'},
664
{"certfile", required_argument, 0, 'k'},
665
{0, 0, 0, 0} };
666
667
int option_index = 0;
668
ret = getopt_long (argc, argv, "i:", long_options,
669
&option_index);
670
671
if (ret == -1){
672
break;
673
}
674
675
switch(ret){
676
case 0:
677
break;
678
case 'i':
679
interface = optarg;
680
break;
681
case 'C':
682
connect_to = optarg;
683
break;
684
case 'd':
685
certdir = optarg;
686
break;
687
case 'c':
688
certfile = optarg;
689
break;
690
case 'k':
691
certkey = optarg;
692
break;
693
default:
694
exit(EXIT_FAILURE);
695
}
696
}
697
698
certfile = combinepath(certdir, certfile);
699
if (certfile == NULL){
700
goto exit;
701
}
702
703
if(interface != NULL){
704
if_index = (AvahiIfIndex) if_nametoindex(interface);
705
if(if_index == 0){
706
fprintf(stderr, "No such interface: \"%s\"\n", interface);
707
exit(EXIT_FAILURE);
708
}
771
char *pubkeyfilename = NULL;
772
char *seckeyfilename = NULL;
773
const char *pubkeyname = "pubkey.txt";
774
const char *seckeyname = "seckey.txt";
775
mandos_context mc = { .simple_poll = NULL, .server = NULL,
776
.dh_bits = 1024, .priority = "SECURE256"};
777
bool gnutls_initalized = false;
778
779
{
780
struct argp_option options[] = {
781
{ .name = "debug", .key = 128,
782
.doc = "Debug mode", .group = 3 },
783
{ .name = "connect", .key = 'c',
784
.arg = "IP",
785
.doc = "Connect directly to a sepcified mandos server",
786
.group = 1 },
787
{ .name = "interface", .key = 'i',
788
.arg = "INTERFACE",
789
.doc = "Interface that Avahi will conntect through",
790
.group = 1 },
791
{ .name = "keydir", .key = 'd',
792
.arg = "KEYDIR",
793
.doc = "Directory where the openpgp keyring is",
794
.group = 1 },
795
{ .name = "seckey", .key = 's',
796
.arg = "SECKEY",
797
.doc = "Secret openpgp key for gnutls authentication",
798
.group = 1 },
799
{ .name = "pubkey", .key = 'p',
800
.arg = "PUBKEY",
801
.doc = "Public openpgp key for gnutls authentication",
802
.group = 2 },
803
{ .name = "dh-bits", .key = 129,
804
.arg = "BITS",
805
.doc = "dh-bits to use in gnutls communication",
806
.group = 2 },
807
{ .name = "priority", .key = 130,
808
.arg = "PRIORITY",
809
.doc = "GNUTLS priority", .group = 1 },
810
{ .name = NULL }
811
};
812
813
814
error_t parse_opt (int key, char *arg,
815
struct argp_state *state) {
816
/* Get the INPUT argument from `argp_parse', which we know is
817
a pointer to our plugin list pointer. */
818
switch (key) {
819
case 128:
820
debug = true;
821
break;
822
case 'c':
823
connect_to = arg;
824
break;
825
case 'i':
826
interface = arg;
827
break;
828
case 'd':
829
keydir = arg;
830
break;
831
case 's':
832
seckeyname = arg;
833
break;
834
case 'p':
835
pubkeyname = arg;
836
break;
837
case 129:
838
errno = 0;
839
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
840
if (errno){
841
perror("strtol");
842
exit(EXIT_FAILURE);
843
}
844
break;
845
case 130:
846
mc.priority = arg;
847
break;
848
case ARGP_KEY_ARG:
849
argp_usage (state);
850
case ARGP_KEY_END:
851
break;
852
default:
853
return ARGP_ERR_UNKNOWN;
854
}
855
return 0;
856
}
857
858
struct argp argp = { .options = options, .parser = parse_opt,
859
.args_doc = "",
860
.doc = "Mandos client -- Get and decrypt"
861
" passwords from mandos server" };
862
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
863
if (ret == ARGP_ERR_UNKNOWN){
864
fprintf(stderr, "Unknown error while parsing arguments\n");
865
exitcode = EXIT_FAILURE;
866
goto end;
867
}
868
}
869
870
pubkeyfilename = combinepath(keydir, pubkeyname);
871
if (pubkeyfilename == NULL){
872
perror("combinepath");
873
exitcode = EXIT_FAILURE;
874
goto end;
875
}
876
877
seckeyfilename = combinepath(keydir, seckeyname);
878
if (seckeyfilename == NULL){
879
perror("combinepath");
880
exitcode = EXIT_FAILURE;
881
goto end;
882
}
883
884
ret = init_gnutls_global(&mc, pubkeyfilename, seckeyfilename);
885
if (ret == -1){
886
fprintf(stderr, "init_gnutls_global failed\n");
887
exitcode = EXIT_FAILURE;
888
goto end;
889
} else {
890
gnutls_initalized = true;
891
}
892
893
/* If the interface is down, bring it up */
894
{
895
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
896
if(sd < 0) {
897
perror("socket");
898
exitcode = EXIT_FAILURE;
899
goto end;
900
}
901
strcpy(network.ifr_name, interface);
902
ret = ioctl(sd, SIOCGIFFLAGS, &network);
903
if(ret == -1){
904
perror("ioctl SIOCGIFFLAGS");
905
exitcode = EXIT_FAILURE;
906
goto end;
907
}
908
if((network.ifr_flags & IFF_UP) == 0){
909
network.ifr_flags |= IFF_UP;
910
ret = ioctl(sd, SIOCSIFFLAGS, &network);
911
if(ret == -1){
912
perror("ioctl SIOCSIFFLAGS");
913
exitcode = EXIT_FAILURE;
914
goto end;
915
}
916
}
917
close(sd);
918
}
919
920
uid = getuid();
921
gid = getgid();
922
923
ret = setuid(uid);
924
if (ret == -1){
925
perror("setuid");
926
}
927
928
setgid(gid);
929
if (ret == -1){
930
perror("setgid");
931
}
932
933
if_index = (AvahiIfIndex) if_nametoindex(interface);
934
if(if_index == 0){
935
fprintf(stderr, "No such interface: \"%s\"\n", interface);
936
exit(EXIT_FAILURE);
709
937
}
710
938
711
939
if(connect_to != NULL){
714
942
char *address = strrchr(connect_to, ':');
715
943
if(address == NULL){
716
944
fprintf(stderr, "No colon in address\n");
717
exit(EXIT_FAILURE);
945
exitcode = EXIT_FAILURE;
946
goto end;
718
947
}
719
948
errno = 0;
720
949
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
721
950
if(errno){
722
951
perror("Bad port number");
723
exit(EXIT_FAILURE);
952
exitcode = EXIT_FAILURE;
953
goto end;
724
954
}
725
955
*address = '\0';
726
956
address = connect_to;
727
ret = start_mandos_communication(address, port, if_index);
957
ret = start_mandos_communication(address, port, if_index, &mc);
728
958
if(ret < 0){
729
exit(EXIT_FAILURE);
959
exitcode = EXIT_FAILURE;
730
960
} else {
731
exit(EXIT_SUCCESS);
961
exitcode = EXIT_SUCCESS;
732
962
}
733
}
734
735
certkey = combinepath(certdir, certkey);
736
if (certkey == NULL){
737
goto exit;
963
goto end;
738
964
}
739
965
740
966
if (not debug){
741
967
avahi_set_log_function(empty_log);
742
968
}
743
969
744
/* Initialize the psuedo-RNG */
970
/* Initialize the pseudo-RNG for Avahi */
745
971
srand((unsigned int) time(NULL));
746
747
/* Allocate main loop object */
748
if (!(simple_poll = avahi_simple_poll_new())) {
749
fprintf(stderr, "Failed to create simple poll object.\n");
750
751
goto exit;
752
}
753
754
/* Do not publish any local records */
755
avahi_server_config_init(&config);
756
config.publish_hinfo = 0;
757
config.publish_addresses = 0;
758
config.publish_workstation = 0;
759
config.publish_domain = 0;
760
761
/* Allocate a new server */
762
server = avahi_server_new(avahi_simple_poll_get(simple_poll),
763
&config, NULL, NULL, &error);
764
765
/* Free the configuration data */
766
avahi_server_config_free(&config);
767
768
/* Check if creating the server object succeeded */
769
if (!server) {
770
fprintf(stderr, "Failed to create server: %s\n",
972
973
/* Allocate main Avahi loop object */
974
mc.simple_poll = avahi_simple_poll_new();
975
if (mc.simple_poll == NULL) {
976
fprintf(stderr, "Avahi: Failed to create simple poll"
977
" object.\n");
978
exitcode = EXIT_FAILURE;
979
goto end;
980
}
981
982
{
983
AvahiServerConfig config;
984
/* Do not publish any local Zeroconf records */
985
avahi_server_config_init(&config);
986
config.publish_hinfo = 0;
987
config.publish_addresses = 0;
988
config.publish_workstation = 0;
989
config.publish_domain = 0;
990
991
/* Allocate a new server */
992
mc.server = avahi_server_new(avahi_simple_poll_get
993
(mc.simple_poll), &config, NULL,
994
NULL, &error);
995
996
/* Free the Avahi configuration data */
997
avahi_server_config_free(&config);
998
}
999
1000
/* Check if creating the Avahi server object succeeded */
1001
if (mc.server == NULL) {
1002
fprintf(stderr, "Failed to create Avahi server: %s\n",
771
1003
avahi_strerror(error));
772
returncode = EXIT_FAILURE;
773
goto exit;
1004
exitcode = EXIT_FAILURE;
1005
goto end;
774
1006
}
775
1007
776
/* Create the service browser */
777
sb = avahi_s_service_browser_new(server, if_index,
1008
/* Create the Avahi service browser */
1009
sb = avahi_s_service_browser_new(mc.server, if_index,
778
1010
AVAHI_PROTO_INET6,
779
1011
"_mandos._tcp", NULL, 0,
780
browse_callback, server);
781
if (!sb) {
1012
browse_callback, &mc);
1013
if (sb == NULL) {
782
1014
fprintf(stderr, "Failed to create service browser: %s\n",
783
avahi_strerror(avahi_server_errno(server)));
784
returncode = EXIT_FAILURE;
785
goto exit;
1015
avahi_strerror(avahi_server_errno(mc.server)));
1016
exitcode = EXIT_FAILURE;
1017
goto end;
786
1018
}
787
1019
788
1020
/* Run the main loop */
789
1021
790
1022
if (debug){
791
fprintf(stderr, "Starting avahi loop search\n");
1023
fprintf(stderr, "Starting Avahi loop search\n");
792
1024
}
793
1025
794
avahi_simple_poll_loop(simple_poll);
1026
avahi_simple_poll_loop(mc.simple_poll);
795
1027
796
exit:
1028
end:
797
1029
798
1030
if (debug){
799
1031
fprintf(stderr, "%s exiting\n", argv[0]);
800
1032
}
801
1033
802
1034
/* Cleanup things */
803
if (sb)
1035
if (sb != NULL)
804
1036
avahi_s_service_browser_free(sb);
805
1037
806
if (server)
807
avahi_server_free(server);
808
809
if (simple_poll)
810
avahi_simple_poll_free(simple_poll);
811
free(certfile);
812
free(certkey);
1038
if (mc.server != NULL)
1039
avahi_server_free(mc.server);
1040
1041
if (mc.simple_poll != NULL)
1042
avahi_simple_poll_free(mc.simple_poll);
1043
free(pubkeyfilename);
1044
free(seckeyfilename);
1045
1046
if (gnutls_initalized){
1047
gnutls_certificate_free_credentials(mc.cred);
1048
gnutls_global_deinit ();
1049
}
813
1050
814
return returncode;
1051
return exitcode;
815
1052
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0