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- Committer: Teddy Hogeborn
- Date: 2008-08-18 03:50:28 UTC
- Revision ID: teddy@fukt.bsnet.se-20080818035028-su31apqs2pv2147v
* mandos-keygen.xml: Removed <?xml-stylesheet>. New entity
"&OVERVIEW;" referring to "overview.xml".
(PURPOSE, OVERVIEW): New sections, same as in mandos(8).
(EXAMPLES): Renamed to "EXAMPLE", as per man-pages(7).
* mandos.xml (OPTIONS, CLIENTS): Slight wording change.
"&OVERVIEW;" referring to "overview.xml".
(PURPOSE, OVERVIEW): New sections, same as in mandos(8).
(EXAMPLES): Renamed to "EXAMPLE", as per man-pages(7).
* mandos.xml (OPTIONS, CLIENTS): Slight wording change.
- 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
#include <sys/ioctl.h> // ioctl, ifreq, SIOCGIFFLAGS, IFF_UP, SIOCSIFFLAGS
41
#include <net/if.h> // ioctl, ifreq, SIOCGIFFLAGS, IFF_UP, SIOCSIFFLAGS
42
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_* */
43
76
#include <avahi-core/core.h>
44
77
#include <avahi-core/lookup.h>
45
78
#include <avahi-core/log.h>
47
80
#include <avahi-common/malloc.h>
48
81
#include <avahi-common/error.h>
49
82
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>
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_* */
70
98
71
99
#define BUFFER_SIZE 256
72
#define DH_BITS 1024
73
74
static const char *certdir = "/conf/conf.d/mandos";
75
static const char *certfile = "openpgp-client.txt";
76
static const char *certkey = "openpgp-client-key.txt";
77
100
78
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>";
79
106
107
/* Used for passing in values through the Avahi callback functions */
80
108
typedef struct {
81
109
AvahiSimplePoll *simple_poll;
82
110
AvahiServer *server;
83
111
gnutls_certificate_credentials_t cred;
84
112
unsigned int dh_bits;
113
gnutls_dh_params_t dh_params;
85
114
const char *priority;
86
115
} mandos_context;
87
116
88
static ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
89
char **new_packet,
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,
90
141
const char *homedir){
91
142
gpgme_data_t dh_crypto, dh_plain;
92
143
gpgme_ctx_t ctx;
93
144
gpgme_error_t rc;
94
145
ssize_t ret;
95
ssize_t new_packet_capacity = 0;
96
ssize_t new_packet_length = 0;
146
size_t plaintext_capacity = 0;
147
ssize_t plaintext_length = 0;
97
148
gpgme_engine_info_t engine_info;
98
149
99
150
if (debug){
100
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
151
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
101
152
}
102
153
103
154
/* Init GPGME */
109
160
return -1;
110
161
}
111
162
112
/* Set GPGME home directory */
163
/* Set GPGME home directory for the OpenPGP engine only */
113
164
rc = gpgme_get_engine_info (&engine_info);
114
165
if (rc != GPG_ERR_NO_ERROR){
115
166
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
125
176
engine_info = engine_info->next;
126
177
}
127
178
if(engine_info == NULL){
128
fprintf(stderr, "Could not set home dir to %s\n", homedir);
179
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
129
180
return -1;
130
181
}
131
182
132
/* Create new GPGME data buffer from packet buffer */
133
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);
134
186
if (rc != GPG_ERR_NO_ERROR){
135
187
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
136
188
gpgme_strsource(rc), gpgme_strerror(rc));
142
194
if (rc != GPG_ERR_NO_ERROR){
143
195
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
144
196
gpgme_strsource(rc), gpgme_strerror(rc));
197
gpgme_data_release(dh_crypto);
145
198
return -1;
146
199
}
147
200
150
203
if (rc != GPG_ERR_NO_ERROR){
151
204
fprintf(stderr, "bad gpgme_new: %s: %s\n",
152
205
gpgme_strsource(rc), gpgme_strerror(rc));
153
return -1;
206
plaintext_length = -1;
207
goto decrypt_end;
154
208
}
155
209
156
/* Decrypt data from the FILE pointer to the plaintext data
157
buffer */
210
/* Decrypt data from the cryptotext data buffer to the plaintext
211
data buffer */
158
212
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
159
213
if (rc != GPG_ERR_NO_ERROR){
160
214
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
161
215
gpgme_strsource(rc), gpgme_strerror(rc));
162
return -1;
216
plaintext_length = -1;
217
goto decrypt_end;
163
218
}
164
219
165
220
if(debug){
166
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
221
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
167
222
}
168
223
169
224
if (debug){
170
225
gpgme_decrypt_result_t result;
171
226
result = gpgme_op_decrypt_result(ctx);
174
229
} else {
175
230
fprintf(stderr, "Unsupported algorithm: %s\n",
176
231
result->unsupported_algorithm);
177
fprintf(stderr, "Wrong key usage: %d\n",
232
fprintf(stderr, "Wrong key usage: %u\n",
178
233
result->wrong_key_usage);
179
234
if(result->file_name != NULL){
180
235
fprintf(stderr, "File name: %s\n", result->file_name);
195
250
}
196
251
}
197
252
198
/* Delete the GPGME FILE pointer cryptotext data buffer */
199
gpgme_data_release(dh_crypto);
200
201
253
/* Seek back to the beginning of the GPGME plaintext data buffer */
202
254
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
203
255
perror("pgpme_data_seek");
256
plaintext_length = -1;
257
goto decrypt_end;
204
258
}
205
259
206
*new_packet = 0;
260
*plaintext = NULL;
207
261
while(true){
208
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
209
*new_packet = realloc(*new_packet,
210
(unsigned int)new_packet_capacity
211
+ BUFFER_SIZE);
212
if (*new_packet == NULL){
213
perror("realloc");
214
return -1;
215
}
216
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;
217
269
}
218
270
219
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
271
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
220
272
BUFFER_SIZE);
221
273
/* Print the data, if any */
222
274
if (ret == 0){
275
/* EOF */
223
276
break;
224
277
}
225
278
if(ret < 0){
226
279
perror("gpgme_data_read");
227
return -1;
280
plaintext_length = -1;
281
goto decrypt_end;
228
282
}
229
new_packet_length += ret;
283
plaintext_length += ret;
230
284
}
231
285
232
/* FIXME: check characters before printing to screen so to not print
233
terminal control characters */
234
/* if(debug){ */
235
/* fprintf(stderr, "decrypted password is: "); */
236
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
237
/* fprintf(stderr, "\n"); */
238
/* } */
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);
239
298
240
299
/* Delete the GPGME plaintext data buffer */
241
300
gpgme_data_release(dh_plain);
242
return new_packet_length;
301
return plaintext_length;
243
302
}
244
303
245
304
static const char * safer_gnutls_strerror (int value) {
246
const char *ret = gnutls_strerror (value);
305
const char *ret = gnutls_strerror (value); /* Spurious warning */
247
306
if (ret == NULL)
248
307
ret = "(unknown)";
249
308
return ret;
250
309
}
251
310
311
/* GnuTLS log function callback */
252
312
static void debuggnutls(__attribute__((unused)) int level,
253
313
const char* string){
254
fprintf(stderr, "%s", string);
314
fprintf(stderr, "GnuTLS: %s", string);
255
315
}
256
316
257
static int initgnutls(mandos_context *mc){
258
const char *err;
317
static int init_gnutls_global(mandos_context *mc,
318
const char *pubkeyfilename,
319
const char *seckeyfilename){
259
320
int ret;
260
321
261
322
if(debug){
262
323
fprintf(stderr, "Initializing GnuTLS\n");
263
324
}
264
265
if ((ret = gnutls_global_init ())
266
!= GNUTLS_E_SUCCESS) {
267
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));
268
330
return -1;
269
331
}
270
332
271
333
if (debug){
334
/* "Use a log level over 10 to enable all debugging options."
335
* - GnuTLS manual
336
*/
272
337
gnutls_global_set_log_level(11);
273
338
gnutls_global_set_log_function(debuggnutls);
274
339
}
275
340
276
/* openpgp credentials */
277
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
278
!= GNUTLS_E_SUCCESS) {
279
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 */
280
346
safer_gnutls_strerror(ret));
347
gnutls_global_deinit ();
281
348
return -1;
282
349
}
283
350
284
351
if(debug){
285
352
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
286
" and keyfile %s as GnuTLS credentials\n", certfile,
287
certkey);
353
" and keyfile %s as GnuTLS credentials\n", pubkeyfilename,
354
seckeyfilename);
288
355
}
289
356
290
357
ret = gnutls_certificate_set_openpgp_key_file
291
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
358
(mc->cred, pubkeyfilename, seckeyfilename,
359
GNUTLS_OPENPGP_FMT_BASE64);
292
360
if (ret != GNUTLS_E_SUCCESS) {
293
fprintf
294
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
295
" '%s')\n",
296
ret, certfile, certkey);
297
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",
298
365
safer_gnutls_strerror(ret));
299
return -1;
300
}
301
302
//GnuTLS server initialization
303
if ((ret = gnutls_dh_params_init (&es->dh_params))
304
!= GNUTLS_E_SUCCESS) {
305
fprintf (stderr, "Error in dh parameter initialization: %s\n",
306
safer_gnutls_strerror(ret));
307
return -1;
308
}
309
310
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
311
!= GNUTLS_E_SUCCESS) {
312
fprintf (stderr, "Error in prime generation: %s\n",
313
safer_gnutls_strerror(ret));
314
return -1;
315
}
316
317
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
318
319
// GnuTLS session creation
320
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
321
!= 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){
322
401
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
323
402
safer_gnutls_strerror(ret));
324
403
}
325
404
326
if ((ret = gnutls_priority_set_direct (es->session, mc->priority, &err))
327
!= GNUTLS_E_SUCCESS) {
328
fprintf(stderr, "Syntax error at: %s\n", err);
329
fprintf(stderr, "GnuTLS error: %s\n",
330
safer_gnutls_strerror(ret));
331
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
}
332
415
}
333
416
334
if ((ret = gnutls_credentials_set
335
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
336
!= GNUTLS_E_SUCCESS) {
337
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",
338
421
safer_gnutls_strerror(ret));
422
gnutls_deinit (*session);
339
423
return -1;
340
424
}
341
425
342
426
/* ignore client certificate if any. */
343
gnutls_certificate_server_set_request (es->session,
427
gnutls_certificate_server_set_request (*session,
344
428
GNUTLS_CERT_IGNORE);
345
429
346
gnutls_dh_set_prime_bits (es->session, DH_BITS);
430
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
347
431
348
432
return 0;
349
433
}
350
434
435
/* Avahi log function callback */
351
436
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
352
437
__attribute__((unused)) const char *txt){}
353
438
439
/* Called when a Mandos server is found */
354
440
static int start_mandos_communication(const char *ip, uint16_t port,
355
441
AvahiIfIndex if_index,
356
442
mandos_context *mc){
357
443
int ret, tcp_sd;
358
struct sockaddr_in6 to;
359
encrypted_session es;
444
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
360
445
char *buffer = NULL;
361
446
char *decrypted_buffer;
362
447
size_t buffer_length = 0;
363
448
size_t buffer_capacity = 0;
364
449
ssize_t decrypted_buffer_size;
365
size_t written = 0;
450
size_t written;
366
451
int retval = 0;
367
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
}
368
459
369
460
if(debug){
370
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
371
ip, port);
461
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
462
"\n", ip, port);
372
463
}
373
464
374
465
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
379
470
380
471
if(debug){
381
472
if(if_indextoname((unsigned int)if_index, interface) == NULL){
382
if(debug){
383
perror("if_indextoname");
384
}
473
perror("if_indextoname");
385
474
return -1;
386
475
}
387
388
476
fprintf(stderr, "Binding to interface %s\n", interface);
389
477
}
390
478
391
memset(&to,0,sizeof(to)); /* Spurious warning */
392
to.sin6_family = AF_INET6;
393
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);
394
484
if (ret < 0 ){
395
485
perror("inet_pton");
396
486
return -1;
397
}
487
}
398
488
if(ret == 0){
399
489
fprintf(stderr, "Bad address: %s\n", ip);
400
490
return -1;
401
491
}
402
to.sin6_port = htons(port); /* Spurious warning */
492
to.in6.sin6_port = htons(port); /* Spurious warning */
403
493
404
to.sin6_scope_id = (uint32_t)if_index;
494
to.in6.sin6_scope_id = (uint32_t)if_index;
405
495
406
496
if(debug){
407
fprintf(stderr, "Connection to: %s, port %d\n", ip, port);
408
/* char addrstr[INET6_ADDRSTRLEN]; */
409
/* if(inet_ntop(to.sin6_family, &(to.sin6_addr), addrstr, */
410
/* sizeof(addrstr)) == NULL){ */
411
/* perror("inet_ntop"); */
412
/* } else { */
413
/* fprintf(stderr, "Really connecting to: %s, port %d\n", */
414
/* addrstr, ntohs(to.sin6_port)); */
415
/* } */
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
}
416
508
}
417
509
418
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
510
ret = connect(tcp_sd, &to.in, sizeof(to));
419
511
if (ret < 0){
420
512
perror("connect");
421
513
return -1;
422
514
}
423
424
ret = initgnutls (&es);
425
if (ret != 0){
426
retval = -1;
427
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
}
428
538
}
429
430
gnutls_transport_set_ptr (es.session,
431
(gnutls_transport_ptr_t) tcp_sd);
432
539
433
540
if(debug){
434
541
fprintf(stderr, "Establishing TLS session with %s\n", ip);
435
542
}
436
543
437
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);
438
549
439
550
if (ret != GNUTLS_E_SUCCESS){
440
551
if(debug){
441
fprintf(stderr, "\n*** Handshake failed ***\n");
552
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
442
553
gnutls_perror (ret);
443
554
}
444
555
retval = -1;
445
goto exit;
556
goto mandos_end;
446
557
}
447
558
448
//Retrieve OpenPGP packet that contains the wanted password
559
/* Read OpenPGP packet that contains the wanted password */
449
560
450
561
if(debug){
451
562
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
453
564
}
454
565
455
566
while(true){
456
if (buffer_length + BUFFER_SIZE > buffer_capacity){
457
buffer = realloc(buffer, buffer_capacity + BUFFER_SIZE);
458
if (buffer == NULL){
459
perror("realloc");
460
goto exit;
461
}
462
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;
463
573
}
464
574
465
ret = gnutls_record_recv
466
(es.session, buffer+buffer_length, BUFFER_SIZE);
575
ret = gnutls_record_recv(session, buffer+buffer_length,
576
BUFFER_SIZE);
467
577
if (ret == 0){
468
578
break;
469
579
}
473
583
case GNUTLS_E_AGAIN:
474
584
break;
475
585
case GNUTLS_E_REHANDSHAKE:
476
ret = gnutls_handshake (es.session);
586
do{
587
ret = gnutls_handshake (session);
588
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
477
589
if (ret < 0){
478
fprintf(stderr, "\n*** Handshake failed ***\n");
590
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
479
591
gnutls_perror (ret);
480
592
retval = -1;
481
goto exit;
593
goto mandos_end;
482
594
}
483
595
break;
484
596
default:
485
597
fprintf(stderr, "Unknown error while reading data from"
486
" encrypted session with mandos server\n");
598
" encrypted session with Mandos server\n");
487
599
retval = -1;
488
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
489
goto exit;
600
gnutls_bye (session, GNUTLS_SHUT_RDWR);
601
goto mandos_end;
490
602
}
491
603
} else {
492
604
buffer_length += (size_t) ret;
493
605
}
494
606
}
495
607
608
if(debug){
609
fprintf(stderr, "Closing TLS session\n");
610
}
611
612
gnutls_bye (session, GNUTLS_SHUT_RDWR);
613
496
614
if (buffer_length > 0){
497
615
decrypted_buffer_size = pgp_packet_decrypt(buffer,
498
616
buffer_length,
499
617
&decrypted_buffer,
500
certdir);
618
keydir);
501
619
if (decrypted_buffer_size >= 0){
620
written = 0;
502
621
while(written < (size_t) decrypted_buffer_size){
503
622
ret = (int)fwrite (decrypted_buffer + written, 1,
504
623
(size_t)decrypted_buffer_size - written,
518
637
retval = -1;
519
638
}
520
639
}
521
522
//shutdown procedure
523
524
if(debug){
525
fprintf(stderr, "Closing TLS session\n");
526
}
527
640
641
/* Shutdown procedure */
642
643
mandos_end:
528
644
free(buffer);
529
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
530
exit:
531
645
close(tcp_sd);
532
gnutls_deinit (es.session);
533
gnutls_certificate_free_credentials (es.cred);
534
gnutls_global_deinit ();
646
gnutls_deinit (session);
535
647
return retval;
536
648
}
537
649
538
static void resolve_callback( AvahiSServiceResolver *r,
539
AvahiIfIndex interface,
540
AVAHI_GCC_UNUSED AvahiProtocol protocol,
541
AvahiResolverEvent event,
542
const char *name,
543
const char *type,
544
const char *domain,
545
const char *host_name,
546
const AvahiAddress *address,
547
uint16_t port,
548
AVAHI_GCC_UNUSED AvahiStringList *txt,
549
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
550
AVAHI_GCC_UNUSED void* userdata) {
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) {
551
664
mandos_context *mc = userdata;
552
assert(r); /* Spurious warning */
665
assert(r);
553
666
554
667
/* Called whenever a service has been resolved successfully or
555
668
timed out */
557
670
switch (event) {
558
671
default:
559
672
case AVAHI_RESOLVER_FAILURE:
560
fprintf(stderr, "(Resolver) Failed to resolve service '%s' of"
561
" type '%s' in domain '%s': %s\n", name, type, domain,
673
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
674
" of type '%s' in domain '%s': %s\n", name, type, domain,
562
675
avahi_strerror(avahi_server_errno(mc->server)));
563
676
break;
564
677
567
680
char ip[AVAHI_ADDRESS_STR_MAX];
568
681
avahi_address_snprint(ip, sizeof(ip), address);
569
682
if(debug){
570
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
571
" 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);
572
686
}
573
687
int ret = start_mandos_communication(ip, port, interface, mc);
574
688
if (ret == 0){
575
exit(EXIT_SUCCESS);
689
avahi_simple_poll_quit(mc->simple_poll);
576
690
}
577
691
}
578
692
}
586
700
const char *name,
587
701
const char *type,
588
702
const char *domain,
589
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
703
AVAHI_GCC_UNUSED AvahiLookupResultFlags
704
flags,
590
705
void* userdata) {
591
706
mandos_context *mc = userdata;
592
assert(b); /* Spurious warning */
707
assert(b);
593
708
594
709
/* Called whenever a new services becomes available on the LAN or
595
710
is removed from the LAN */
597
712
switch (event) {
598
713
default:
599
714
case AVAHI_BROWSER_FAILURE:
600
601
fprintf(stderr, "(Browser) %s\n",
715
716
fprintf(stderr, "(Avahi browser) %s\n",
602
717
avahi_strerror(avahi_server_errno(mc->server)));
603
718
avahi_simple_poll_quit(mc->simple_poll);
604
719
return;
605
720
606
721
case AVAHI_BROWSER_NEW:
607
/* We ignore the returned resolver object. In the callback
608
function we free it. If the server is terminated before
609
the callback function is called the server will free
610
the resolver for us. */
611
612
if (!(avahi_s_service_resolver_new(mc->server, interface, protocol, name,
613
type, domain,
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,
614
729
AVAHI_PROTO_INET6, 0,
615
730
resolve_callback, mc)))
616
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
617
avahi_strerror(avahi_server_errno(s)));
731
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
732
name, avahi_strerror(avahi_server_errno(mc->server)));
618
733
break;
619
734
620
735
case AVAHI_BROWSER_REMOVE:
621
736
break;
622
737
623
738
case AVAHI_BROWSER_ALL_FOR_NOW:
624
739
case AVAHI_BROWSER_CACHE_EXHAUSTED:
740
if(debug){
741
fprintf(stderr, "No Mandos server found, still searching...\n");
742
}
625
743
break;
626
744
}
627
745
}
628
746
629
747
/* Combines file name and path and returns the malloced new
630
748
string. some sane checks could/should be added */
631
static const char *combinepath(const char *first, const char *second){
632
size_t f_len = strlen(first);
633
size_t s_len = strlen(second);
634
char *tmp = malloc(f_len + s_len + 2);
635
if (tmp == NULL){
749
static char *combinepath(const char *first, const char *second){
750
char *tmp;
751
int ret = asprintf(&tmp, "%s/%s", first, second);
752
if(ret < 0){
636
753
return NULL;
637
754
}
638
if(f_len > 0){
639
memcpy(tmp, first, f_len);
640
}
641
tmp[f_len] = '/';
642
if(s_len > 0){
643
memcpy(tmp + f_len + 1, second, s_len);
644
}
645
tmp[f_len + 1 + s_len] = '\0';
646
755
return tmp;
647
756
}
648
757
649
758
650
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
651
AvahiServerConfig config;
759
int main(int argc, char *argv[]){
652
760
AvahiSServiceBrowser *sb = NULL;
653
761
int error;
654
762
int ret;
655
int returncode = EXIT_SUCCESS;
763
int exitcode = EXIT_SUCCESS;
656
764
const char *interface = "eth0";
657
765
struct ifreq network;
658
766
int sd;
767
uid_t uid;
768
gid_t gid;
659
769
char *connect_to = NULL;
660
770
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
771
char *pubkeyfilename = NULL;
772
char *seckeyfilename = NULL;
773
const char *pubkeyname = "pubkey.txt";
774
const char *seckeyname = "seckey.txt";
661
775
mandos_context mc = { .simple_poll = NULL, .server = NULL,
662
.dh_bits = 2048, .priority = "SECURE256"};
776
.dh_bits = 1024, .priority = "SECURE256"};
777
bool gnutls_initalized = false;
663
778
664
while (true){
665
static struct option long_options[] = {
666
{"debug", no_argument, (int *)&debug, 1},
667
{"connect", required_argument, 0, 'C'},
668
{"interface", required_argument, 0, 'i'},
669
{"certdir", required_argument, 0, 'd'},
670
{"certkey", required_argument, 0, 'c'},
671
{"certfile", required_argument, 0, 'k'},
672
{"dh_bits", required_argument, 0, 'D'},
673
{"priority", required_argument, 0, 'p'},
674
{0, 0, 0, 0} };
675
676
int option_index = 0;
677
ret = getopt_long (argc, argv, "i:", long_options,
678
&option_index);
679
680
if (ret == -1){
681
break;
682
}
683
684
switch(ret){
685
case 0:
686
break;
687
case 'i':
688
interface = optarg;
689
break;
690
case 'C':
691
connect_to = optarg;
692
break;
693
case 'd':
694
certdir = optarg;
695
break;
696
case 'c':
697
certfile = optarg;
698
break;
699
case 'k':
700
certkey = optarg;
701
break;
702
case 'D':
703
{
704
long int tmp;
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:
705
838
errno = 0;
706
tmp = strtol(optarg, NULL, 10);
707
if (errno == ERANGE){
839
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
840
if (errno){
708
841
perror("strtol");
709
842
exit(EXIT_FAILURE);
710
843
}
711
mc.dh_bits = tmp;
712
}
713
break;
714
case 'p':
715
mc.priority = optarg;
716
break;
717
default:
718
exit(EXIT_FAILURE);
719
}
720
}
721
722
certfile = combinepath(certdir, certfile);
723
if (certfile == NULL){
724
perror("combinepath");
725
returncode = EXIT_FAILURE;
726
goto exit;
727
}
728
729
certkey = combinepath(certdir, certkey);
730
if (certkey == NULL){
731
perror("combinepath");
732
returncode = EXIT_FAILURE;
733
goto exit;
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");
734
931
}
735
932
736
933
if_index = (AvahiIfIndex) if_nametoindex(interface);
745
942
char *address = strrchr(connect_to, ':');
746
943
if(address == NULL){
747
944
fprintf(stderr, "No colon in address\n");
748
exit(EXIT_FAILURE);
945
exitcode = EXIT_FAILURE;
946
goto end;
749
947
}
750
948
errno = 0;
751
949
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
752
950
if(errno){
753
951
perror("Bad port number");
754
exit(EXIT_FAILURE);
952
exitcode = EXIT_FAILURE;
953
goto end;
755
954
}
756
955
*address = '\0';
757
956
address = connect_to;
758
ret = start_mandos_communication(address, port, if_index);
957
ret = start_mandos_communication(address, port, if_index, &mc);
759
958
if(ret < 0){
760
exit(EXIT_FAILURE);
959
exitcode = EXIT_FAILURE;
761
960
} else {
762
exit(EXIT_SUCCESS);
763
}
764
}
765
766
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
767
if(sd < 0) {
768
perror("socket");
769
returncode = EXIT_FAILURE;
770
goto exit;
771
}
772
strcpy(network.ifr_name, interface);
773
ret = ioctl(sd, SIOCGIFFLAGS, &network);
774
if(ret == -1){
775
776
perror("ioctl SIOCGIFFLAGS");
777
returncode = EXIT_FAILURE;
778
goto exit;
779
}
780
if((network.ifr_flags & IFF_UP) == 0){
781
network.ifr_flags |= IFF_UP;
782
ret = ioctl(sd, SIOCSIFFLAGS, &network);
783
if(ret == -1){
784
perror("ioctl SIOCSIFFLAGS");
785
returncode = EXIT_FAILURE;
786
goto exit;
787
}
788
}
789
close(sd);
961
exitcode = EXIT_SUCCESS;
962
}
963
goto end;
964
}
790
965
791
966
if (not debug){
792
967
avahi_set_log_function(empty_log);
793
968
}
794
969
795
/* Initialize the psuedo-RNG */
970
/* Initialize the pseudo-RNG for Avahi */
796
971
srand((unsigned int) time(NULL));
797
798
/* Allocate main loop object */
799
if (!(mc.simple_poll = avahi_simple_poll_new())) {
800
fprintf(stderr, "Failed to create simple poll object.\n");
801
returncode = EXIT_FAILURE;
802
goto exit;
803
}
804
805
/* Do not publish any local records */
806
avahi_server_config_init(&config);
807
config.publish_hinfo = 0;
808
config.publish_addresses = 0;
809
config.publish_workstation = 0;
810
config.publish_domain = 0;
811
812
/* Allocate a new server */
813
mc.server = avahi_server_new(avahi_simple_poll_get(simple_poll),
814
&config, NULL, NULL, &error);
815
816
/* Free the configuration data */
817
avahi_server_config_free(&config);
818
819
/* Check if creating the server object succeeded */
820
if (!mc.server) {
821
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",
822
1003
avahi_strerror(error));
823
returncode = EXIT_FAILURE;
824
goto exit;
1004
exitcode = EXIT_FAILURE;
1005
goto end;
825
1006
}
826
1007
827
/* Create the service browser */
1008
/* Create the Avahi service browser */
828
1009
sb = avahi_s_service_browser_new(mc.server, if_index,
829
1010
AVAHI_PROTO_INET6,
830
1011
"_mandos._tcp", NULL, 0,
831
1012
browse_callback, &mc);
832
if (!sb) {
1013
if (sb == NULL) {
833
1014
fprintf(stderr, "Failed to create service browser: %s\n",
834
1015
avahi_strerror(avahi_server_errno(mc.server)));
835
returncode = EXIT_FAILURE;
836
goto exit;
1016
exitcode = EXIT_FAILURE;
1017
goto end;
837
1018
}
838
1019
839
1020
/* Run the main loop */
840
1021
841
1022
if (debug){
842
fprintf(stderr, "Starting avahi loop search\n");
1023
fprintf(stderr, "Starting Avahi loop search\n");
843
1024
}
844
1025
845
avahi_simple_poll_loop(simple_poll);
1026
avahi_simple_poll_loop(mc.simple_poll);
846
1027
847
exit:
1028
end:
848
1029
849
1030
if (debug){
850
1031
fprintf(stderr, "%s exiting\n", argv[0]);
851
1032
}
852
1033
853
1034
/* Cleanup things */
854
if (sb)
1035
if (sb != NULL)
855
1036
avahi_s_service_browser_free(sb);
856
1037
857
if (mc.server)
1038
if (mc.server != NULL)
858
1039
avahi_server_free(mc.server);
859
1040
860
if (simple_poll)
861
avahi_simple_poll_free(simple_poll);
862
free(certfile);
863
free(certkey);
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
}
864
1050
865
return returncode;
1051
return exitcode;
866
1052
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0