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- Committer: Björn Påhlsson
- Date: 2008-08-14 01:32:34 UTC
- mto: (24.1.154 mandos) (237.4.3 mandos-release)
- mto: This revision was merged to the branch mainline in revision 75.
- Revision ID: belorn@braxen-20080814013234-qs0s608s3gxwb5t7
changed from using strtok to strsep
- files added:
- initramfs-tools-hook
- files removed:
- ca.pem
- files renamed:
- server.py => mandos
- plugbasedclient.c => mandos-client.c
- server.conf => mandos.conf
- 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
25
25
* along with this program. If not, see
26
26
* <http://www.gnu.org/licenses/>.
27
27
*
28
* Contact the authors at <https://www.fukt.bsnet.se/~belorn/> and
29
* <https://www.fukt.bsnet.se/~teddy/>.
28
* Contact the authors at <mandos@fukt.bsnet.se>.
30
29
*/
31
30
32
31
/* Needed by GPGME, specifically gpgme_data_seek() */
33
32
#define _LARGEFILE_SOURCE
34
33
#define _FILE_OFFSET_BITS 64
35
34
36
#include <stdio.h>
37
#include <assert.h>
38
#include <stdlib.h>
39
#include <time.h>
40
#include <net/if.h> /* if_nametoindex */
41
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_* */
42
76
#include <avahi-core/core.h>
43
77
#include <avahi-core/lookup.h>
44
78
#include <avahi-core/log.h>
46
80
#include <avahi-common/malloc.h>
47
81
#include <avahi-common/error.h>
48
82
49
//mandos client part
50
#include <sys/types.h> /* socket(), inet_pton() */
51
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
52
struct in6_addr, inet_pton() */
53
#include <gnutls/gnutls.h> /* All GnuTLS stuff */
54
#include <gnutls/openpgp.h> /* GnuTLS with openpgp stuff */
55
56
#include <unistd.h> /* close() */
57
#include <netinet/in.h>
58
#include <stdbool.h> /* true */
59
#include <string.h> /* memset */
60
#include <arpa/inet.h> /* inet_pton() */
61
#include <iso646.h> /* not */
62
63
// gpgme
64
#include <errno.h> /* perror() */
65
#include <gpgme.h>
66
67
// getopt long
68
#include <getopt.h>
69
70
#ifndef CERT_ROOT
71
#define CERT_ROOT "/conf/conf.d/cryptkeyreq/"
72
#endif
73
#define CERTFILE CERT_ROOT "openpgp-client.txt"
74
#define KEYFILE CERT_ROOT "openpgp-client-key.txt"
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_* */
96
75
97
#define BUFFER_SIZE 256
76
#define DH_BITS 1024
77
98
78
99
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>";
79
104
105
/* Used for passing in values through the Avahi callback functions */
80
106
typedef struct {
81
gnutls_session_t session;
107
AvahiSimplePoll *simple_poll;
108
AvahiServer *server;
82
109
gnutls_certificate_credentials_t cred;
110
unsigned int dh_bits;
83
111
gnutls_dh_params_t dh_params;
84
} encrypted_session;
85
86
87
ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
88
char **new_packet, const char *homedir){
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){
89
140
gpgme_data_t dh_crypto, dh_plain;
90
141
gpgme_ctx_t ctx;
91
142
gpgme_error_t rc;
92
143
ssize_t ret;
93
ssize_t new_packet_capacity = 0;
94
ssize_t new_packet_length = 0;
144
size_t plaintext_capacity = 0;
145
ssize_t plaintext_length = 0;
95
146
gpgme_engine_info_t engine_info;
96
147
97
148
if (debug){
98
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
149
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
99
150
}
100
151
101
152
/* Init GPGME */
102
153
gpgme_check_version(NULL);
103
gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
154
rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
155
if (rc != GPG_ERR_NO_ERROR){
156
fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
157
gpgme_strsource(rc), gpgme_strerror(rc));
158
return -1;
159
}
104
160
105
/* Set GPGME home directory */
161
/* Set GPGME home directory for the OpenPGP engine only */
106
162
rc = gpgme_get_engine_info (&engine_info);
107
163
if (rc != GPG_ERR_NO_ERROR){
108
164
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
118
174
engine_info = engine_info->next;
119
175
}
120
176
if(engine_info == NULL){
121
fprintf(stderr, "Could not set home dir to %s\n", homedir);
177
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
122
178
return -1;
123
179
}
124
180
125
/* Create new GPGME data buffer from packet buffer */
126
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
181
/* Create new GPGME data buffer from memory cryptotext */
182
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
183
0);
127
184
if (rc != GPG_ERR_NO_ERROR){
128
185
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
129
186
gpgme_strsource(rc), gpgme_strerror(rc));
135
192
if (rc != GPG_ERR_NO_ERROR){
136
193
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
137
194
gpgme_strsource(rc), gpgme_strerror(rc));
195
gpgme_data_release(dh_crypto);
138
196
return -1;
139
197
}
140
198
143
201
if (rc != GPG_ERR_NO_ERROR){
144
202
fprintf(stderr, "bad gpgme_new: %s: %s\n",
145
203
gpgme_strsource(rc), gpgme_strerror(rc));
146
return -1;
204
plaintext_length = -1;
205
goto decrypt_end;
147
206
}
148
207
149
/* Decrypt data from the FILE pointer to the plaintext data
150
buffer */
208
/* Decrypt data from the cryptotext data buffer to the plaintext
209
data buffer */
151
210
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
152
211
if (rc != GPG_ERR_NO_ERROR){
153
212
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
154
213
gpgme_strsource(rc), gpgme_strerror(rc));
155
return -1;
214
plaintext_length = -1;
215
goto decrypt_end;
156
216
}
157
217
158
218
if(debug){
159
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
219
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
160
220
}
161
221
162
222
if (debug){
163
223
gpgme_decrypt_result_t result;
164
224
result = gpgme_op_decrypt_result(ctx);
167
227
} else {
168
228
fprintf(stderr, "Unsupported algorithm: %s\n",
169
229
result->unsupported_algorithm);
170
fprintf(stderr, "Wrong key usage: %d\n",
230
fprintf(stderr, "Wrong key usage: %u\n",
171
231
result->wrong_key_usage);
172
232
if(result->file_name != NULL){
173
233
fprintf(stderr, "File name: %s\n", result->file_name);
188
248
}
189
249
}
190
250
191
/* Delete the GPGME FILE pointer cryptotext data buffer */
192
gpgme_data_release(dh_crypto);
193
194
251
/* Seek back to the beginning of the GPGME plaintext data buffer */
195
gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET);
196
197
*new_packet = 0;
252
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
253
perror("pgpme_data_seek");
254
plaintext_length = -1;
255
goto decrypt_end;
256
}
257
258
*plaintext = NULL;
198
259
while(true){
199
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
200
*new_packet = realloc(*new_packet,
201
(unsigned int)new_packet_capacity
202
+ BUFFER_SIZE);
203
if (*new_packet == NULL){
204
perror("realloc");
205
return -1;
206
}
207
new_packet_capacity += BUFFER_SIZE;
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;
208
267
}
209
268
210
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
269
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
211
270
BUFFER_SIZE);
212
271
/* Print the data, if any */
213
272
if (ret == 0){
273
/* EOF */
214
274
break;
215
275
}
216
276
if(ret < 0){
217
277
perror("gpgme_data_read");
218
return -1;
278
plaintext_length = -1;
279
goto decrypt_end;
219
280
}
220
new_packet_length += ret;
281
plaintext_length += ret;
221
282
}
222
283
223
/* FIXME: check characters before printing to screen so to not print
224
terminal control characters */
225
/* if(debug){ */
226
/* fprintf(stderr, "decrypted password is: "); */
227
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
228
/* fprintf(stderr, "\n"); */
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
296
231
297
/* Delete the GPGME plaintext data buffer */
232
298
gpgme_data_release(dh_plain);
233
return new_packet_length;
299
return plaintext_length;
234
300
}
235
301
236
302
static const char * safer_gnutls_strerror (int value) {
240
306
return ret;
241
307
}
242
308
243
void debuggnutls(__attribute__((unused)) int level,
244
const char* string){
245
fprintf(stderr, "%s", string);
309
/* GnuTLS log function callback */
310
static void debuggnutls(__attribute__((unused)) int level,
311
const char* string){
312
fprintf(stderr, "GnuTLS: %s", string);
246
313
}
247
314
248
int initgnutls(encrypted_session *es){
249
const char *err;
315
static int init_gnutls_global(mandos_context *mc,
316
const char *pubkeyfile,
317
const char *seckeyfile){
250
318
int ret;
251
319
252
320
if(debug){
253
321
fprintf(stderr, "Initializing GnuTLS\n");
254
322
}
255
323
256
if ((ret = gnutls_global_init ())
257
!= GNUTLS_E_SUCCESS) {
258
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
324
ret = gnutls_global_init();
325
if (ret != GNUTLS_E_SUCCESS) {
326
fprintf (stderr, "GnuTLS global_init: %s\n",
327
safer_gnutls_strerror(ret));
259
328
return -1;
260
329
}
261
330
262
331
if (debug){
332
/* "Use a log level over 10 to enable all debugging options."
333
* - GnuTLS manual
334
*/
263
335
gnutls_global_set_log_level(11);
264
336
gnutls_global_set_log_function(debuggnutls);
265
337
}
266
338
267
/* openpgp credentials */
268
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
269
!= GNUTLS_E_SUCCESS) {
270
fprintf (stderr, "memory error: %s\n",
339
/* OpenPGP credentials */
340
gnutls_certificate_allocate_credentials(&mc->cred);
341
if (ret != GNUTLS_E_SUCCESS){
342
fprintf (stderr, "GnuTLS memory error: %s\n",
271
343
safer_gnutls_strerror(ret));
344
gnutls_global_deinit ();
272
345
return -1;
273
346
}
274
347
275
348
if(debug){
276
349
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
277
" and keyfile %s as GnuTLS credentials\n", CERTFILE,
278
KEYFILE);
350
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
351
seckeyfile);
279
352
}
280
353
281
354
ret = gnutls_certificate_set_openpgp_key_file
282
(es->cred, CERTFILE, KEYFILE, GNUTLS_OPENPGP_FMT_BASE64);
355
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
283
356
if (ret != GNUTLS_E_SUCCESS) {
284
fprintf
285
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
286
" '%s')\n",
287
ret, CERTFILE, KEYFILE);
288
fprintf(stdout, "The Error is: %s\n",
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",
289
361
safer_gnutls_strerror(ret));
290
return -1;
291
}
292
293
//GnuTLS server initialization
294
if ((ret = gnutls_dh_params_init (&es->dh_params))
295
!= GNUTLS_E_SUCCESS) {
296
fprintf (stderr, "Error in dh parameter initialization: %s\n",
297
safer_gnutls_strerror(ret));
298
return -1;
299
}
300
301
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
302
!= GNUTLS_E_SUCCESS) {
303
fprintf (stderr, "Error in prime generation: %s\n",
304
safer_gnutls_strerror(ret));
305
return -1;
306
}
307
308
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
309
310
// GnuTLS session creation
311
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
312
!= GNUTLS_E_SUCCESS){
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){
313
397
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
314
398
safer_gnutls_strerror(ret));
315
399
}
316
400
317
if ((ret = gnutls_priority_set_direct (es->session, "NORMAL", &err))
318
!= GNUTLS_E_SUCCESS) {
319
fprintf(stderr, "Syntax error at: %s\n", err);
320
fprintf(stderr, "GnuTLS error: %s\n",
321
safer_gnutls_strerror(ret));
322
return -1;
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
}
323
411
}
324
412
325
if ((ret = gnutls_credentials_set
326
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
327
!= GNUTLS_E_SUCCESS) {
328
fprintf(stderr, "Error setting a credentials set: %s\n",
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",
329
417
safer_gnutls_strerror(ret));
418
gnutls_deinit (*session);
330
419
return -1;
331
420
}
332
421
333
422
/* ignore client certificate if any. */
334
gnutls_certificate_server_set_request (es->session,
423
gnutls_certificate_server_set_request (*session,
335
424
GNUTLS_CERT_IGNORE);
336
425
337
gnutls_dh_set_prime_bits (es->session, DH_BITS);
426
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
338
427
339
428
return 0;
340
429
}
341
430
342
void empty_log(__attribute__((unused)) AvahiLogLevel level,
343
__attribute__((unused)) const char *txt){}
431
/* Avahi log function callback */
432
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
433
__attribute__((unused)) const char *txt){}
344
434
345
int start_mandos_communication(const char *ip, uint16_t port,
346
AvahiIfIndex if_index){
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){
347
439
int ret, tcp_sd;
348
struct sockaddr_in6 to;
349
encrypted_session es;
440
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
350
441
char *buffer = NULL;
351
442
char *decrypted_buffer;
352
443
size_t buffer_length = 0;
353
444
size_t buffer_capacity = 0;
354
445
ssize_t decrypted_buffer_size;
355
size_t written = 0;
446
size_t written;
356
447
int retval = 0;
357
448
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
}
358
455
359
456
if(debug){
360
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
361
ip, port);
457
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
458
"\n", ip, port);
362
459
}
363
460
364
461
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
366
463
perror("socket");
367
464
return -1;
368
465
}
369
370
if(if_indextoname((unsigned int)if_index, interface) == NULL){
371
if(debug){
466
467
if(debug){
468
if(if_indextoname((unsigned int)if_index, interface) == NULL){
372
469
perror("if_indextoname");
470
return -1;
373
471
}
374
return -1;
375
}
376
377
if(debug){
378
472
fprintf(stderr, "Binding to interface %s\n", interface);
379
473
}
380
474
381
475
memset(&to,0,sizeof(to)); /* Spurious warning */
382
to.sin6_family = AF_INET6;
383
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
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);
384
480
if (ret < 0 ){
385
481
perror("inet_pton");
386
482
return -1;
387
}
483
}
388
484
if(ret == 0){
389
485
fprintf(stderr, "Bad address: %s\n", ip);
390
486
return -1;
391
487
}
392
to.sin6_port = htons(port); /* Spurious warning */
488
to.in6.sin6_port = htons(port); /* Spurious warning */
393
489
394
to.sin6_scope_id = (uint32_t)if_index;
490
to.in6.sin6_scope_id = (uint32_t)if_index;
395
491
396
492
if(debug){
397
fprintf(stderr, "Connection to: %s, port %d\n", ip, port);
398
/* char addrstr[INET6_ADDRSTRLEN]; */
399
/* if(inet_ntop(to.sin6_family, &(to.sin6_addr), addrstr, */
400
/* sizeof(addrstr)) == NULL){ */
401
/* perror("inet_ntop"); */
402
/* } else { */
403
/* fprintf(stderr, "Really connecting to: %s, port %d\n", */
404
/* addrstr, ntohs(to.sin6_port)); */
405
/* } */
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
}
406
504
}
407
505
408
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
506
ret = connect(tcp_sd, &to.in, sizeof(to));
409
507
if (ret < 0){
410
508
perror("connect");
411
509
return -1;
412
510
}
413
414
ret = initgnutls (&es);
415
if (ret != 0){
416
retval = -1;
417
return -1;
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
}
418
534
}
419
420
gnutls_transport_set_ptr (es.session,
421
(gnutls_transport_ptr_t) tcp_sd);
422
535
423
536
if(debug){
424
537
fprintf(stderr, "Establishing TLS session with %s\n", ip);
425
538
}
426
539
427
ret = gnutls_handshake (es.session);
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);
428
545
429
546
if (ret != GNUTLS_E_SUCCESS){
430
547
if(debug){
431
fprintf(stderr, "\n*** Handshake failed ***\n");
548
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
432
549
gnutls_perror (ret);
433
550
}
434
551
retval = -1;
435
goto exit;
552
goto mandos_end;
436
553
}
437
554
438
//Retrieve OpenPGP packet that contains the wanted password
555
/* Read OpenPGP packet that contains the wanted password */
439
556
440
557
if(debug){
441
558
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
443
560
}
444
561
445
562
while(true){
446
if (buffer_length + BUFFER_SIZE > buffer_capacity){
447
buffer = realloc(buffer, buffer_capacity + BUFFER_SIZE);
448
if (buffer == NULL){
449
perror("realloc");
450
goto exit;
451
}
452
buffer_capacity += BUFFER_SIZE;
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;
453
569
}
454
570
455
ret = gnutls_record_recv
456
(es.session, buffer+buffer_length, BUFFER_SIZE);
571
ret = gnutls_record_recv(session, buffer+buffer_length,
572
BUFFER_SIZE);
457
573
if (ret == 0){
458
574
break;
459
575
}
463
579
case GNUTLS_E_AGAIN:
464
580
break;
465
581
case GNUTLS_E_REHANDSHAKE:
466
ret = gnutls_handshake (es.session);
582
do{
583
ret = gnutls_handshake (session);
584
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
467
585
if (ret < 0){
468
fprintf(stderr, "\n*** Handshake failed ***\n");
586
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
469
587
gnutls_perror (ret);
470
588
retval = -1;
471
goto exit;
589
goto mandos_end;
472
590
}
473
591
break;
474
592
default:
475
593
fprintf(stderr, "Unknown error while reading data from"
476
" encrypted session with mandos server\n");
594
" encrypted session with Mandos server\n");
477
595
retval = -1;
478
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
479
goto exit;
596
gnutls_bye (session, GNUTLS_SHUT_RDWR);
597
goto mandos_end;
480
598
}
481
599
} else {
482
600
buffer_length += (size_t) ret;
483
601
}
484
602
}
485
603
604
if(debug){
605
fprintf(stderr, "Closing TLS session\n");
606
}
607
608
gnutls_bye (session, GNUTLS_SHUT_RDWR);
609
486
610
if (buffer_length > 0){
487
611
decrypted_buffer_size = pgp_packet_decrypt(buffer,
488
612
buffer_length,
489
613
&decrypted_buffer,
490
CERT_ROOT);
614
keydir);
491
615
if (decrypted_buffer_size >= 0){
616
written = 0;
492
617
while(written < (size_t) decrypted_buffer_size){
493
618
ret = (int)fwrite (decrypted_buffer + written, 1,
494
619
(size_t)decrypted_buffer_size - written,
508
633
retval = -1;
509
634
}
510
635
}
511
512
//shutdown procedure
513
514
if(debug){
515
fprintf(stderr, "Closing TLS session\n");
516
}
517
636
637
/* Shutdown procedure */
638
639
mandos_end:
518
640
free(buffer);
519
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
520
exit:
521
641
close(tcp_sd);
522
gnutls_deinit (es.session);
523
gnutls_certificate_free_credentials (es.cred);
524
gnutls_global_deinit ();
642
gnutls_deinit (session);
525
643
return retval;
526
644
}
527
645
528
static AvahiSimplePoll *simple_poll = NULL;
529
static AvahiServer *server = NULL;
530
531
static void resolve_callback(
532
AvahiSServiceResolver *r,
533
AvahiIfIndex interface,
534
AVAHI_GCC_UNUSED AvahiProtocol protocol,
535
AvahiResolverEvent event,
536
const char *name,
537
const char *type,
538
const char *domain,
539
const char *host_name,
540
const AvahiAddress *address,
541
uint16_t port,
542
AVAHI_GCC_UNUSED AvahiStringList *txt,
543
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
544
AVAHI_GCC_UNUSED void* userdata) {
545
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;
546
661
assert(r); /* Spurious warning */
547
662
548
663
/* Called whenever a service has been resolved successfully or
551
666
switch (event) {
552
667
default:
553
668
case AVAHI_RESOLVER_FAILURE:
554
fprintf(stderr, "(Resolver) Failed to resolve service '%s' of"
555
" type '%s' in domain '%s': %s\n", name, type, domain,
556
avahi_strerror(avahi_server_errno(server)));
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)));
557
672
break;
558
673
559
674
case AVAHI_RESOLVER_FOUND:
561
676
char ip[AVAHI_ADDRESS_STR_MAX];
562
677
avahi_address_snprint(ip, sizeof(ip), address);
563
678
if(debug){
564
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
565
" port %d\n", name, host_name, ip, port);
679
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
680
PRIu16 ") on port %d\n", name, host_name, ip,
681
interface, port);
566
682
}
567
int ret = start_mandos_communication(ip, port, interface);
683
int ret = start_mandos_communication(ip, port, interface, mc);
568
684
if (ret == 0){
569
exit(EXIT_SUCCESS);
685
avahi_simple_poll_quit(mc->simple_poll);
570
686
}
571
687
}
572
688
}
573
689
avahi_s_service_resolver_free(r);
574
690
}
575
691
576
static void browse_callback(
577
AvahiSServiceBrowser *b,
578
AvahiIfIndex interface,
579
AvahiProtocol protocol,
580
AvahiBrowserEvent event,
581
const char *name,
582
const char *type,
583
const char *domain,
584
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
585
void* userdata) {
586
587
AvahiServer *s = userdata;
588
assert(b); /* Spurious warning */
589
590
/* Called whenever a new services becomes available on the LAN or
591
is removed from the LAN */
592
593
switch (event) {
594
default:
595
case AVAHI_BROWSER_FAILURE:
596
597
fprintf(stderr, "(Browser) %s\n",
598
avahi_strerror(avahi_server_errno(server)));
599
avahi_simple_poll_quit(simple_poll);
600
return;
601
602
case AVAHI_BROWSER_NEW:
603
/* We ignore the returned resolver object. In the callback
604
function we free it. If the server is terminated before
605
the callback function is called the server will free
606
the resolver for us. */
607
608
if (!(avahi_s_service_resolver_new(s, interface, protocol, name,
609
type, domain,
610
AVAHI_PROTO_INET6, 0,
611
resolve_callback, s)))
612
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
613
avahi_strerror(avahi_server_errno(s)));
614
break;
615
616
case AVAHI_BROWSER_REMOVE:
617
break;
618
619
case AVAHI_BROWSER_ALL_FOR_NOW:
620
case AVAHI_BROWSER_CACHE_EXHAUSTED:
621
break;
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");
622
738
}
623
}
624
625
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
626
AvahiServerConfig config;
739
break;
740
}
741
}
742
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);
749
if (tmp == NULL){
750
return NULL;
751
}
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';
760
return tmp;
761
}
762
763
764
int main(int argc, char *argv[]){
627
765
AvahiSServiceBrowser *sb = NULL;
628
766
int error;
629
767
int ret;
630
int returncode = EXIT_SUCCESS;
631
const char *interface = NULL;
768
int exitcode = EXIT_SUCCESS;
769
const char *interface = "eth0";
770
struct ifreq network;
771
int sd;
772
uid_t uid;
773
gid_t gid;
774
char *connect_to = NULL;
632
775
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
633
char *connect_to = NULL;
634
635
while (true){
636
static struct option long_options[] = {
637
{"debug", no_argument, (int *)&debug, 1},
638
{"connect", required_argument, 0, 'c'},
639
{"interface", required_argument, 0, 'i'},
640
{0, 0, 0, 0} };
641
642
int option_index = 0;
643
ret = getopt_long (argc, argv, "i:", long_options,
644
&option_index);
645
646
if (ret == -1){
647
break;
648
}
649
650
switch(ret){
651
case 0:
652
break;
653
case 'i':
654
interface = optarg;
655
break;
656
case 'c':
657
connect_to = optarg;
658
break;
659
default:
660
exit(EXIT_FAILURE);
661
}
662
}
663
664
if(interface != NULL){
665
if_index = (AvahiIfIndex) if_nametoindex(interface);
666
if(if_index == 0){
667
fprintf(stderr, "No such interface: \"%s\"\n", interface);
668
exit(EXIT_FAILURE);
669
}
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
case ARGP_KEY_END:
854
break;
855
default:
856
return ARGP_ERR_UNKNOWN;
857
}
858
return 0;
859
}
860
861
struct argp argp = { .options = options, .parser = parse_opt,
862
.args_doc = "",
863
.doc = "Mandos client -- Get and decrypt"
864
" passwords from mandos server" };
865
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
866
if (ret == ARGP_ERR_UNKNOWN){
867
fprintf(stderr, "Unknown error while parsing arguments\n");
868
exitcode = EXIT_FAILURE;
869
goto end;
870
}
871
}
872
873
pubkeyfile = combinepath(keydir, pubkeyfile);
874
if (pubkeyfile == NULL){
875
perror("combinepath");
876
exitcode = EXIT_FAILURE;
877
goto end;
878
}
879
880
seckeyfile = combinepath(keydir, seckeyfile);
881
if (seckeyfile == NULL){
882
perror("combinepath");
883
exitcode = EXIT_FAILURE;
884
goto end;
885
}
886
887
ret = init_gnutls_global(&mc, pubkeyfile, seckeyfile);
888
if (ret == -1){
889
fprintf(stderr, "init_gnutls_global failed\n");
890
exitcode = EXIT_FAILURE;
891
goto end;
892
} else {
893
gnutls_initalized = true;
894
}
895
896
/* If the interface is down, bring it up */
897
{
898
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
899
if(sd < 0) {
900
perror("socket");
901
exitcode = EXIT_FAILURE;
902
goto end;
903
}
904
strcpy(network.ifr_name, interface); /* Spurious warning */
905
ret = ioctl(sd, SIOCGIFFLAGS, &network);
906
if(ret == -1){
907
perror("ioctl SIOCGIFFLAGS");
908
exitcode = EXIT_FAILURE;
909
goto end;
910
}
911
if((network.ifr_flags & IFF_UP) == 0){
912
network.ifr_flags |= IFF_UP;
913
ret = ioctl(sd, SIOCSIFFLAGS, &network);
914
if(ret == -1){
915
perror("ioctl SIOCSIFFLAGS");
916
exitcode = EXIT_FAILURE;
917
goto end;
918
}
919
}
920
close(sd);
921
}
922
923
uid = getuid();
924
gid = getgid();
925
926
ret = setuid(uid);
927
if (ret == -1){
928
perror("setuid");
929
}
930
931
setgid(gid);
932
if (ret == -1){
933
perror("setgid");
934
}
935
936
if_index = (AvahiIfIndex) if_nametoindex(interface);
937
if(if_index == 0){
938
fprintf(stderr, "No such interface: \"%s\"\n", interface);
939
exit(EXIT_FAILURE);
670
940
}
671
941
672
942
if(connect_to != NULL){
675
945
char *address = strrchr(connect_to, ':');
676
946
if(address == NULL){
677
947
fprintf(stderr, "No colon in address\n");
678
exit(EXIT_FAILURE);
948
exitcode = EXIT_FAILURE;
949
goto end;
679
950
}
680
951
errno = 0;
681
952
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
682
953
if(errno){
683
954
perror("Bad port number");
684
exit(EXIT_FAILURE);
955
exitcode = EXIT_FAILURE;
956
goto end;
685
957
}
686
958
*address = '\0';
687
959
address = connect_to;
688
ret = start_mandos_communication(address, port, if_index);
960
ret = start_mandos_communication(address, port, if_index, &mc);
689
961
if(ret < 0){
690
exit(EXIT_FAILURE);
962
exitcode = EXIT_FAILURE;
691
963
} else {
692
exit(EXIT_SUCCESS);
964
exitcode = EXIT_SUCCESS;
693
965
}
966
goto end;
694
967
}
695
968
696
969
if (not debug){
697
970
avahi_set_log_function(empty_log);
698
971
}
699
972
700
/* Initialize the psuedo-RNG */
973
/* Initialize the pseudo-RNG for Avahi */
701
974
srand((unsigned int) time(NULL));
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",
975
976
/* Allocate main Avahi loop object */
977
mc.simple_poll = avahi_simple_poll_new();
978
if (mc.simple_poll == NULL) {
979
fprintf(stderr, "Avahi: Failed to create simple poll"
980
" object.\n");
981
exitcode = EXIT_FAILURE;
982
goto end;
983
}
984
985
{
986
AvahiServerConfig config;
987
/* Do not publish any local Zeroconf records */
988
avahi_server_config_init(&config);
989
config.publish_hinfo = 0;
990
config.publish_addresses = 0;
991
config.publish_workstation = 0;
992
config.publish_domain = 0;
993
994
/* Allocate a new server */
995
mc.server = avahi_server_new(avahi_simple_poll_get
996
(mc.simple_poll), &config, NULL,
997
NULL, &error);
998
999
/* Free the Avahi configuration data */
1000
avahi_server_config_free(&config);
1001
}
1002
1003
/* Check if creating the Avahi server object succeeded */
1004
if (mc.server == NULL) {
1005
fprintf(stderr, "Failed to create Avahi server: %s\n",
727
1006
avahi_strerror(error));
728
returncode = EXIT_FAILURE;
729
goto exit;
1007
exitcode = EXIT_FAILURE;
1008
goto end;
730
1009
}
731
1010
732
/* Create the service browser */
733
sb = avahi_s_service_browser_new(server, if_index,
1011
/* Create the Avahi service browser */
1012
sb = avahi_s_service_browser_new(mc.server, if_index,
734
1013
AVAHI_PROTO_INET6,
735
1014
"_mandos._tcp", NULL, 0,
736
browse_callback, server);
737
if (!sb) {
1015
browse_callback, &mc);
1016
if (sb == NULL) {
738
1017
fprintf(stderr, "Failed to create service browser: %s\n",
739
avahi_strerror(avahi_server_errno(server)));
740
returncode = EXIT_FAILURE;
741
goto exit;
1018
avahi_strerror(avahi_server_errno(mc.server)));
1019
exitcode = EXIT_FAILURE;
1020
goto end;
742
1021
}
743
1022
744
1023
/* Run the main loop */
745
1024
746
1025
if (debug){
747
fprintf(stderr, "Starting avahi loop search\n");
1026
fprintf(stderr, "Starting Avahi loop search\n");
748
1027
}
749
1028
750
avahi_simple_poll_loop(simple_poll);
1029
avahi_simple_poll_loop(mc.simple_poll);
751
1030
752
exit:
1031
end:
753
1032
754
1033
if (debug){
755
1034
fprintf(stderr, "%s exiting\n", argv[0]);
756
1035
}
757
1036
758
1037
/* Cleanup things */
759
if (sb)
1038
if (sb != NULL)
760
1039
avahi_s_service_browser_free(sb);
761
1040
762
if (server)
763
avahi_server_free(server);
764
765
if (simple_poll)
766
avahi_simple_poll_free(simple_poll);
767
768
return returncode;
1041
if (mc.server != NULL)
1042
avahi_server_free(mc.server);
1043
1044
if (mc.simple_poll != NULL)
1045
avahi_simple_poll_free(mc.simple_poll);
1046
free(pubkeyfile);
1047
free(seckeyfile);
1048
1049
if (gnutls_initalized){
1050
gnutls_certificate_free_credentials(mc.cred);
1051
gnutls_global_deinit ();
1052
}
1053
1054
return exitcode;
769
1055
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0