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- Committer: Björn Påhlsson
- Date: 2008-08-02 18:46:45 UTC
- mto: (237.7.1 mandos) (24.1.154 mandos)
- mto: This revision was merged to the branch mainline in revision 38.
- Revision ID: belorn@braxen-20080802184645-t5i3yboc53gdas7m
plugbasedclient
Parse a single argument as a plus-separated list of options
Parse a single argument as a plus-separated list of options
- files added:
- ca.pem
- files removed:
- COPYING
- files renamed:
- plugin-runner.c => plugbasedclient.c
- plugins.d/password-request.c => plugins.d/mandosclient.c
- plugins.d/password-prompt.c => plugins.d/passprompt.c
- mandos.conf => server.conf
- mandos => server.py
- files modified:
- Makefile
added
removed
plugins.d/mandosclient.c
32
32
#define _LARGEFILE_SOURCE
33
33
#define _FILE_OFFSET_BITS 64
34
34
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY(), asprintf() */
36
37
#include <stdio.h> /* fprintf(), stderr, fwrite(),
38
stdout, ferror() */
39
#include <stdint.h> /* uint16_t, uint32_t */
40
#include <stddef.h> /* NULL, size_t, ssize_t */
41
#include <stdlib.h> /* free(), EXIT_SUCCESS, EXIT_FAILURE,
42
srand() */
43
#include <stdbool.h> /* bool, true */
44
#include <string.h> /* memset(), strcmp(), strlen(),
45
strerror(), asprintf(), strcpy() */
46
#include <sys/ioctl.h> /* ioctl */
47
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
48
sockaddr_in6, PF_INET6,
49
SOCK_STREAM, INET6_ADDRSTRLEN,
50
uid_t, gid_t */
51
#include <inttypes.h> /* PRIu16 */
52
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
53
struct in6_addr, inet_pton(),
54
connect() */
55
#include <assert.h> /* assert() */
56
#include <errno.h> /* perror(), errno */
57
#include <time.h> /* time() */
58
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
59
SIOCSIFFLAGS, if_indextoname(),
60
if_nametoindex(), IF_NAMESIZE */
61
#include <unistd.h> /* close(), SEEK_SET, off_t, write(),
62
getuid(), getgid(), setuid(),
63
setgid() */
64
#include <netinet/in.h>
65
#include <arpa/inet.h> /* inet_pton(), htons */
66
#include <iso646.h> /* not, and */
67
#include <argp.h> /* struct argp_option, error_t, struct
68
argp_state, struct argp,
69
argp_parse(), ARGP_KEY_ARG,
70
ARGP_KEY_END, ARGP_ERR_UNKNOWN */
71
72
/* Avahi */
73
/* All Avahi types, constants and functions
74
Avahi*, avahi_*,
75
AVAHI_* */
35
#include <stdio.h>
36
#include <assert.h>
37
#include <stdlib.h>
38
#include <time.h>
39
#include <net/if.h> /* if_nametoindex */
40
#include <sys/ioctl.h> // ioctl, ifreq, SIOCGIFFLAGS, IFF_UP, SIOCSIFFLAGS
41
#include <net/if.h> // ioctl, ifreq, SIOCGIFFLAGS, IFF_UP, SIOCSIFFLAGS
42
76
43
#include <avahi-core/core.h>
77
44
#include <avahi-core/lookup.h>
78
45
#include <avahi-core/log.h>
80
47
#include <avahi-common/malloc.h>
81
48
#include <avahi-common/error.h>
82
49
83
/* GnuTLS */
84
#include <gnutls/gnutls.h> /* All GnuTLS types, constants and
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_* */
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>
98
70
99
71
#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";
100
77
101
78
bool debug = false;
102
static const char *keydir = "/conf/conf.d/mandos";
103
static const char mandos_protocol_version[] = "1";
104
const char *argp_program_version = "password-request 1.0";
105
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
106
79
107
/* Used for passing in values through the Avahi callback functions */
108
80
typedef struct {
109
AvahiSimplePoll *simple_poll;
110
AvahiServer *server;
81
gnutls_session_t session;
111
82
gnutls_certificate_credentials_t cred;
112
unsigned int dh_bits;
113
83
gnutls_dh_params_t dh_params;
114
const char *priority;
115
} mandos_context;
116
117
/*
118
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
119
* "buffer_capacity" is how much is currently allocated,
120
* "buffer_length" is how much is already used.
121
*/
122
size_t adjustbuffer(char **buffer, size_t buffer_length,
123
size_t buffer_capacity){
124
if (buffer_length + BUFFER_SIZE > buffer_capacity){
125
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
126
if (buffer == NULL){
127
return 0;
128
}
129
buffer_capacity += BUFFER_SIZE;
130
}
131
return buffer_capacity;
132
}
133
134
/*
135
* Decrypt OpenPGP data using keyrings in HOMEDIR.
136
* Returns -1 on error
137
*/
138
static ssize_t pgp_packet_decrypt (const char *cryptotext,
139
size_t crypto_size,
140
char **plaintext,
84
} encrypted_session;
85
86
87
static ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
88
char **new_packet,
141
89
const char *homedir){
142
90
gpgme_data_t dh_crypto, dh_plain;
143
91
gpgme_ctx_t ctx;
144
92
gpgme_error_t rc;
145
93
ssize_t ret;
146
size_t plaintext_capacity = 0;
147
ssize_t plaintext_length = 0;
94
ssize_t new_packet_capacity = 0;
95
ssize_t new_packet_length = 0;
148
96
gpgme_engine_info_t engine_info;
149
97
150
98
if (debug){
151
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
99
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
152
100
}
153
101
154
102
/* Init GPGME */
160
108
return -1;
161
109
}
162
110
163
/* Set GPGME home directory for the OpenPGP engine only */
111
/* Set GPGME home directory */
164
112
rc = gpgme_get_engine_info (&engine_info);
165
113
if (rc != GPG_ERR_NO_ERROR){
166
114
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
176
124
engine_info = engine_info->next;
177
125
}
178
126
if(engine_info == NULL){
179
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
127
fprintf(stderr, "Could not set home dir to %s\n", homedir);
180
128
return -1;
181
129
}
182
130
183
/* Create new GPGME data buffer from memory cryptotext */
184
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
185
0);
131
/* Create new GPGME data buffer from packet buffer */
132
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
186
133
if (rc != GPG_ERR_NO_ERROR){
187
134
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
188
135
gpgme_strsource(rc), gpgme_strerror(rc));
194
141
if (rc != GPG_ERR_NO_ERROR){
195
142
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
196
143
gpgme_strsource(rc), gpgme_strerror(rc));
197
gpgme_data_release(dh_crypto);
198
144
return -1;
199
145
}
200
146
203
149
if (rc != GPG_ERR_NO_ERROR){
204
150
fprintf(stderr, "bad gpgme_new: %s: %s\n",
205
151
gpgme_strsource(rc), gpgme_strerror(rc));
206
plaintext_length = -1;
207
goto decrypt_end;
152
return -1;
208
153
}
209
154
210
/* Decrypt data from the cryptotext data buffer to the plaintext
211
data buffer */
155
/* Decrypt data from the FILE pointer to the plaintext data
156
buffer */
212
157
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
213
158
if (rc != GPG_ERR_NO_ERROR){
214
159
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
215
160
gpgme_strsource(rc), gpgme_strerror(rc));
216
plaintext_length = -1;
217
goto decrypt_end;
161
return -1;
218
162
}
219
163
220
164
if(debug){
221
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
165
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
222
166
}
223
167
224
168
if (debug){
225
169
gpgme_decrypt_result_t result;
226
170
result = gpgme_op_decrypt_result(ctx);
229
173
} else {
230
174
fprintf(stderr, "Unsupported algorithm: %s\n",
231
175
result->unsupported_algorithm);
232
fprintf(stderr, "Wrong key usage: %u\n",
176
fprintf(stderr, "Wrong key usage: %d\n",
233
177
result->wrong_key_usage);
234
178
if(result->file_name != NULL){
235
179
fprintf(stderr, "File name: %s\n", result->file_name);
250
194
}
251
195
}
252
196
197
/* Delete the GPGME FILE pointer cryptotext data buffer */
198
gpgme_data_release(dh_crypto);
199
253
200
/* Seek back to the beginning of the GPGME plaintext data buffer */
254
201
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
255
202
perror("pgpme_data_seek");
256
plaintext_length = -1;
257
goto decrypt_end;
258
203
}
259
204
260
*plaintext = NULL;
205
*new_packet = 0;
261
206
while(true){
262
plaintext_capacity = adjustbuffer(plaintext,
263
(size_t)plaintext_length,
264
plaintext_capacity);
265
if (plaintext_capacity == 0){
266
perror("adjustbuffer");
267
plaintext_length = -1;
268
goto decrypt_end;
207
if (new_packet_length + BUFFER_SIZE > new_packet_capacity){
208
*new_packet = realloc(*new_packet,
209
(unsigned int)new_packet_capacity
210
+ BUFFER_SIZE);
211
if (*new_packet == NULL){
212
perror("realloc");
213
return -1;
214
}
215
new_packet_capacity += BUFFER_SIZE;
269
216
}
270
217
271
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
218
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
272
219
BUFFER_SIZE);
273
220
/* Print the data, if any */
274
221
if (ret == 0){
275
/* EOF */
276
222
break;
277
223
}
278
224
if(ret < 0){
279
225
perror("gpgme_data_read");
280
plaintext_length = -1;
281
goto decrypt_end;
226
return -1;
282
227
}
283
plaintext_length += ret;
228
new_packet_length += ret;
284
229
}
285
230
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);
231
/* FIXME: check characters before printing to screen so to not print
232
terminal control characters */
233
/* if(debug){ */
234
/* fprintf(stderr, "decrypted password is: "); */
235
/* fwrite(*new_packet, 1, new_packet_length, stderr); */
236
/* fprintf(stderr, "\n"); */
237
/* } */
298
238
299
239
/* Delete the GPGME plaintext data buffer */
300
240
gpgme_data_release(dh_plain);
301
return plaintext_length;
241
return new_packet_length;
302
242
}
303
243
304
244
static const char * safer_gnutls_strerror (int value) {
308
248
return ret;
309
249
}
310
250
311
/* GnuTLS log function callback */
312
251
static void debuggnutls(__attribute__((unused)) int level,
313
252
const char* string){
314
fprintf(stderr, "GnuTLS: %s", string);
253
fprintf(stderr, "%s", string);
315
254
}
316
255
317
static int init_gnutls_global(mandos_context *mc,
318
const char *pubkeyfilename,
319
const char *seckeyfilename){
256
static int initgnutls(encrypted_session *es){
257
const char *err;
320
258
int ret;
321
259
322
260
if(debug){
323
261
fprintf(stderr, "Initializing GnuTLS\n");
324
262
}
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));
263
264
if ((ret = gnutls_global_init ())
265
!= GNUTLS_E_SUCCESS) {
266
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
330
267
return -1;
331
268
}
332
269
333
270
if (debug){
334
/* "Use a log level over 10 to enable all debugging options."
335
* - GnuTLS manual
336
*/
337
271
gnutls_global_set_log_level(11);
338
272
gnutls_global_set_log_function(debuggnutls);
339
273
}
340
274
341
/* OpenPGP credentials */
342
gnutls_certificate_allocate_credentials(&mc->cred);
343
if (ret != GNUTLS_E_SUCCESS){
344
fprintf (stderr, "GnuTLS memory error: %s\n",
275
/* openpgp credentials */
276
if ((ret = gnutls_certificate_allocate_credentials (&es->cred))
277
!= GNUTLS_E_SUCCESS) {
278
fprintf (stderr, "memory error: %s\n",
345
279
safer_gnutls_strerror(ret));
346
gnutls_global_deinit ();
347
280
return -1;
348
281
}
349
282
350
283
if(debug){
351
284
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
352
" and keyfile %s as GnuTLS credentials\n", pubkeyfilename,
353
seckeyfilename);
285
" and keyfile %s as GnuTLS credentials\n", certfile,
286
certkey);
354
287
}
355
288
356
289
ret = gnutls_certificate_set_openpgp_key_file
357
(mc->cred, pubkeyfilename, seckeyfilename,
358
GNUTLS_OPENPGP_FMT_BASE64);
290
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
359
291
if (ret != GNUTLS_E_SUCCESS) {
360
fprintf(stderr,
361
"Error[%d] while reading the OpenPGP key pair ('%s',"
362
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
363
fprintf(stdout, "The GnuTLS error is: %s\n",
292
fprintf
293
(stderr, "Error[%d] while reading the OpenPGP key pair ('%s',"
294
" '%s')\n",
295
ret, certfile, certkey);
296
fprintf(stdout, "The Error is: %s\n",
364
297
safer_gnutls_strerror(ret));
365
goto globalfail;
366
}
367
368
/* GnuTLS server initialization */
369
ret = gnutls_dh_params_init(&mc->dh_params);
370
if (ret != GNUTLS_E_SUCCESS) {
371
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
372
" %s\n", safer_gnutls_strerror(ret));
373
goto globalfail;
374
}
375
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
376
if (ret != GNUTLS_E_SUCCESS) {
377
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
378
safer_gnutls_strerror(ret));
379
goto globalfail;
380
}
381
382
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
383
384
return 0;
385
386
globalfail:
387
388
gnutls_certificate_free_credentials(mc->cred);
389
gnutls_global_deinit();
390
return -1;
391
392
}
393
394
static int init_gnutls_session(mandos_context *mc,
395
gnutls_session_t *session){
396
int ret;
397
/* GnuTLS session creation */
398
ret = gnutls_init(session, GNUTLS_SERVER);
399
if (ret != GNUTLS_E_SUCCESS){
298
return -1;
299
}
300
301
//GnuTLS server initialization
302
if ((ret = gnutls_dh_params_init (&es->dh_params))
303
!= GNUTLS_E_SUCCESS) {
304
fprintf (stderr, "Error in dh parameter initialization: %s\n",
305
safer_gnutls_strerror(ret));
306
return -1;
307
}
308
309
if ((ret = gnutls_dh_params_generate2 (es->dh_params, DH_BITS))
310
!= GNUTLS_E_SUCCESS) {
311
fprintf (stderr, "Error in prime generation: %s\n",
312
safer_gnutls_strerror(ret));
313
return -1;
314
}
315
316
gnutls_certificate_set_dh_params (es->cred, es->dh_params);
317
318
// GnuTLS session creation
319
if ((ret = gnutls_init (&es->session, GNUTLS_SERVER))
320
!= GNUTLS_E_SUCCESS){
400
321
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
401
322
safer_gnutls_strerror(ret));
402
323
}
403
324
404
{
405
const char *err;
406
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
407
if (ret != GNUTLS_E_SUCCESS) {
408
fprintf(stderr, "Syntax error at: %s\n", err);
409
fprintf(stderr, "GnuTLS error: %s\n",
410
safer_gnutls_strerror(ret));
411
gnutls_deinit (*session);
412
return -1;
413
}
325
if ((ret = gnutls_priority_set_direct (es->session, "NORMAL", &err))
326
!= GNUTLS_E_SUCCESS) {
327
fprintf(stderr, "Syntax error at: %s\n", err);
328
fprintf(stderr, "GnuTLS error: %s\n",
329
safer_gnutls_strerror(ret));
330
return -1;
414
331
}
415
332
416
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
417
mc->cred);
418
if (ret != GNUTLS_E_SUCCESS) {
419
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
333
if ((ret = gnutls_credentials_set
334
(es->session, GNUTLS_CRD_CERTIFICATE, es->cred))
335
!= GNUTLS_E_SUCCESS) {
336
fprintf(stderr, "Error setting a credentials set: %s\n",
420
337
safer_gnutls_strerror(ret));
421
gnutls_deinit (*session);
422
338
return -1;
423
339
}
424
340
425
341
/* ignore client certificate if any. */
426
gnutls_certificate_server_set_request (*session,
342
gnutls_certificate_server_set_request (es->session,
427
343
GNUTLS_CERT_IGNORE);
428
344
429
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
345
gnutls_dh_set_prime_bits (es->session, DH_BITS);
430
346
431
347
return 0;
432
348
}
433
349
434
/* Avahi log function callback */
435
350
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
436
351
__attribute__((unused)) const char *txt){}
437
352
438
/* Called when a Mandos server is found */
439
353
static int start_mandos_communication(const char *ip, uint16_t port,
440
AvahiIfIndex if_index,
441
mandos_context *mc){
354
AvahiIfIndex if_index){
442
355
int ret, tcp_sd;
443
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
356
struct sockaddr_in6 to;
357
encrypted_session es;
444
358
char *buffer = NULL;
445
359
char *decrypted_buffer;
446
360
size_t buffer_length = 0;
447
361
size_t buffer_capacity = 0;
448
362
ssize_t decrypted_buffer_size;
449
size_t written;
363
size_t written = 0;
450
364
int retval = 0;
451
365
char interface[IF_NAMESIZE];
452
gnutls_session_t session;
453
454
ret = init_gnutls_session (mc, &session);
455
if (ret != 0){
456
return -1;
457
}
458
366
459
367
if(debug){
460
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
461
"\n", ip, port);
368
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
369
ip, port);
462
370
}
463
371
464
372
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
469
377
470
378
if(debug){
471
379
if(if_indextoname((unsigned int)if_index, interface) == NULL){
472
perror("if_indextoname");
380
if(debug){
381
perror("if_indextoname");
382
}
473
383
return -1;
474
384
}
385
475
386
fprintf(stderr, "Binding to interface %s\n", interface);
476
387
}
477
388
478
memset(&to, 0, sizeof(to)); /* Spurious warning */
479
to.in6.sin6_family = AF_INET6;
480
/* It would be nice to have a way to detect if we were passed an
481
IPv4 address here. Now we assume an IPv6 address. */
482
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
389
memset(&to,0,sizeof(to)); /* Spurious warning */
390
to.sin6_family = AF_INET6;
391
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
483
392
if (ret < 0 ){
484
393
perror("inet_pton");
485
394
return -1;
486
}
395
}
487
396
if(ret == 0){
488
397
fprintf(stderr, "Bad address: %s\n", ip);
489
398
return -1;
490
399
}
491
to.in6.sin6_port = htons(port); /* Spurious warning */
400
to.sin6_port = htons(port); /* Spurious warning */
492
401
493
to.in6.sin6_scope_id = (uint32_t)if_index;
402
to.sin6_scope_id = (uint32_t)if_index;
494
403
495
404
if(debug){
496
fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
497
port);
498
char addrstr[INET6_ADDRSTRLEN] = "";
499
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
500
sizeof(addrstr)) == NULL){
501
perror("inet_ntop");
502
} else {
503
if(strcmp(addrstr, ip) != 0){
504
fprintf(stderr, "Canonical address form: %s\n", addrstr);
505
}
506
}
405
fprintf(stderr, "Connection to: %s, port %d\n", ip, port);
406
/* char addrstr[INET6_ADDRSTRLEN]; */
407
/* if(inet_ntop(to.sin6_family, &(to.sin6_addr), addrstr, */
408
/* sizeof(addrstr)) == NULL){ */
409
/* perror("inet_ntop"); */
410
/* } else { */
411
/* fprintf(stderr, "Really connecting to: %s, port %d\n", */
412
/* addrstr, ntohs(to.sin6_port)); */
413
/* } */
507
414
}
508
415
509
ret = connect(tcp_sd, &to.in, sizeof(to));
416
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
510
417
if (ret < 0){
511
418
perror("connect");
512
419
return -1;
513
420
}
514
515
const char *out = mandos_protocol_version;
516
written = 0;
517
while (true){
518
size_t out_size = strlen(out);
519
ret = TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
520
out_size - written));
521
if (ret == -1){
522
perror("write");
523
retval = -1;
524
goto mandos_end;
525
}
526
written += (size_t)ret;
527
if(written < out_size){
528
continue;
529
} else {
530
if (out == mandos_protocol_version){
531
written = 0;
532
out = "\r\n";
533
} else {
534
break;
535
}
536
}
421
422
ret = initgnutls (&es);
423
if (ret != 0){
424
retval = -1;
425
return -1;
537
426
}
538
427
428
gnutls_transport_set_ptr (es.session,
429
(gnutls_transport_ptr_t) tcp_sd);
430
539
431
if(debug){
540
432
fprintf(stderr, "Establishing TLS session with %s\n", ip);
541
433
}
542
434
543
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
544
545
do{
546
ret = gnutls_handshake (session);
547
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
435
ret = gnutls_handshake (es.session);
548
436
549
437
if (ret != GNUTLS_E_SUCCESS){
550
438
if(debug){
551
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
439
fprintf(stderr, "\n*** Handshake failed ***\n");
552
440
gnutls_perror (ret);
553
441
}
554
442
retval = -1;
555
goto mandos_end;
443
goto exit;
556
444
}
557
445
558
/* Read OpenPGP packet that contains the wanted password */
446
//Retrieve OpenPGP packet that contains the wanted password
559
447
560
448
if(debug){
561
449
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
563
451
}
564
452
565
453
while(true){
566
buffer_capacity = adjustbuffer(&buffer, buffer_length,
567
buffer_capacity);
568
if (buffer_capacity == 0){
569
perror("adjustbuffer");
570
retval = -1;
571
goto mandos_end;
454
if (buffer_length + BUFFER_SIZE > buffer_capacity){
455
buffer = realloc(buffer, buffer_capacity + BUFFER_SIZE);
456
if (buffer == NULL){
457
perror("realloc");
458
goto exit;
459
}
460
buffer_capacity += BUFFER_SIZE;
572
461
}
573
462
574
ret = gnutls_record_recv(session, buffer+buffer_length,
575
BUFFER_SIZE);
463
ret = gnutls_record_recv
464
(es.session, buffer+buffer_length, BUFFER_SIZE);
576
465
if (ret == 0){
577
466
break;
578
467
}
582
471
case GNUTLS_E_AGAIN:
583
472
break;
584
473
case GNUTLS_E_REHANDSHAKE:
585
do{
586
ret = gnutls_handshake (session);
587
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
474
ret = gnutls_handshake (es.session);
588
475
if (ret < 0){
589
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
476
fprintf(stderr, "\n*** Handshake failed ***\n");
590
477
gnutls_perror (ret);
591
478
retval = -1;
592
goto mandos_end;
479
goto exit;
593
480
}
594
481
break;
595
482
default:
596
483
fprintf(stderr, "Unknown error while reading data from"
597
" encrypted session with Mandos server\n");
484
" encrypted session with mandos server\n");
598
485
retval = -1;
599
gnutls_bye (session, GNUTLS_SHUT_RDWR);
600
goto mandos_end;
486
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
487
goto exit;
601
488
}
602
489
} else {
603
490
buffer_length += (size_t) ret;
604
491
}
605
492
}
606
493
607
if(debug){
608
fprintf(stderr, "Closing TLS session\n");
609
}
610
611
gnutls_bye (session, GNUTLS_SHUT_RDWR);
612
613
494
if (buffer_length > 0){
614
495
decrypted_buffer_size = pgp_packet_decrypt(buffer,
615
496
buffer_length,
616
497
&decrypted_buffer,
617
keydir);
498
certdir);
618
499
if (decrypted_buffer_size >= 0){
619
written = 0;
620
500
while(written < (size_t) decrypted_buffer_size){
621
501
ret = (int)fwrite (decrypted_buffer + written, 1,
622
502
(size_t)decrypted_buffer_size - written,
636
516
retval = -1;
637
517
}
638
518
}
639
640
/* Shutdown procedure */
641
642
mandos_end:
519
520
//shutdown procedure
521
522
if(debug){
523
fprintf(stderr, "Closing TLS session\n");
524
}
525
643
526
free(buffer);
527
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
528
exit:
644
529
close(tcp_sd);
645
gnutls_deinit (session);
530
gnutls_deinit (es.session);
531
gnutls_certificate_free_credentials (es.cred);
532
gnutls_global_deinit ();
646
533
return retval;
647
534
}
648
535
649
static void resolve_callback(AvahiSServiceResolver *r,
650
AvahiIfIndex interface,
651
AVAHI_GCC_UNUSED AvahiProtocol protocol,
652
AvahiResolverEvent event,
653
const char *name,
654
const char *type,
655
const char *domain,
656
const char *host_name,
657
const AvahiAddress *address,
658
uint16_t port,
659
AVAHI_GCC_UNUSED AvahiStringList *txt,
660
AVAHI_GCC_UNUSED AvahiLookupResultFlags
661
flags,
662
void* userdata) {
663
mandos_context *mc = userdata;
536
static AvahiSimplePoll *simple_poll = NULL;
537
static AvahiServer *server = NULL;
538
539
static void resolve_callback(
540
AvahiSServiceResolver *r,
541
AvahiIfIndex interface,
542
AVAHI_GCC_UNUSED AvahiProtocol protocol,
543
AvahiResolverEvent event,
544
const char *name,
545
const char *type,
546
const char *domain,
547
const char *host_name,
548
const AvahiAddress *address,
549
uint16_t port,
550
AVAHI_GCC_UNUSED AvahiStringList *txt,
551
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
552
AVAHI_GCC_UNUSED void* userdata) {
553
664
554
assert(r); /* Spurious warning */
665
555
666
556
/* Called whenever a service has been resolved successfully or
669
559
switch (event) {
670
560
default:
671
561
case AVAHI_RESOLVER_FAILURE:
672
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
673
" of type '%s' in domain '%s': %s\n", name, type, domain,
674
avahi_strerror(avahi_server_errno(mc->server)));
562
fprintf(stderr, "(Resolver) Failed to resolve service '%s' of"
563
" type '%s' in domain '%s': %s\n", name, type, domain,
564
avahi_strerror(avahi_server_errno(server)));
675
565
break;
676
566
677
567
case AVAHI_RESOLVER_FOUND:
679
569
char ip[AVAHI_ADDRESS_STR_MAX];
680
570
avahi_address_snprint(ip, sizeof(ip), address);
681
571
if(debug){
682
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
683
PRIu16 ") on port %d\n", name, host_name, ip,
684
interface, port);
572
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
573
" port %d\n", name, host_name, ip, port);
685
574
}
686
int ret = start_mandos_communication(ip, port, interface, mc);
575
int ret = start_mandos_communication(ip, port, interface);
687
576
if (ret == 0){
688
avahi_simple_poll_quit(mc->simple_poll);
577
exit(EXIT_SUCCESS);
689
578
}
690
579
}
691
580
}
692
581
avahi_s_service_resolver_free(r);
693
582
}
694
583
695
static void browse_callback( AvahiSServiceBrowser *b,
696
AvahiIfIndex interface,
697
AvahiProtocol protocol,
698
AvahiBrowserEvent event,
699
const char *name,
700
const char *type,
701
const char *domain,
702
AVAHI_GCC_UNUSED AvahiLookupResultFlags
703
flags,
704
void* userdata) {
705
mandos_context *mc = userdata;
706
assert(b); /* Spurious warning */
707
708
/* Called whenever a new services becomes available on the LAN or
709
is removed from the LAN */
710
711
switch (event) {
712
default:
713
case AVAHI_BROWSER_FAILURE:
714
715
fprintf(stderr, "(Avahi browser) %s\n",
716
avahi_strerror(avahi_server_errno(mc->server)));
717
avahi_simple_poll_quit(mc->simple_poll);
718
return;
719
720
case AVAHI_BROWSER_NEW:
721
/* We ignore the returned Avahi resolver object. In the callback
722
function we free it. If the Avahi server is terminated before
723
the callback function is called the Avahi server will free the
724
resolver for us. */
725
726
if (!(avahi_s_service_resolver_new(mc->server, interface,
727
protocol, name, type, domain,
728
AVAHI_PROTO_INET6, 0,
729
resolve_callback, mc)))
730
fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
731
name, avahi_strerror(avahi_server_errno(mc->server)));
732
break;
733
734
case AVAHI_BROWSER_REMOVE:
735
break;
736
737
case AVAHI_BROWSER_ALL_FOR_NOW:
738
case AVAHI_BROWSER_CACHE_EXHAUSTED:
739
if(debug){
740
fprintf(stderr, "No Mandos server found, still searching...\n");
584
static void browse_callback(
585
AvahiSServiceBrowser *b,
586
AvahiIfIndex interface,
587
AvahiProtocol protocol,
588
AvahiBrowserEvent event,
589
const char *name,
590
const char *type,
591
const char *domain,
592
AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
593
void* userdata) {
594
595
AvahiServer *s = userdata;
596
assert(b); /* Spurious warning */
597
598
/* Called whenever a new services becomes available on the LAN or
599
is removed from the LAN */
600
601
switch (event) {
602
default:
603
case AVAHI_BROWSER_FAILURE:
604
605
fprintf(stderr, "(Browser) %s\n",
606
avahi_strerror(avahi_server_errno(server)));
607
avahi_simple_poll_quit(simple_poll);
608
return;
609
610
case AVAHI_BROWSER_NEW:
611
/* We ignore the returned resolver object. In the callback
612
function we free it. If the server is terminated before
613
the callback function is called the server will free
614
the resolver for us. */
615
616
if (!(avahi_s_service_resolver_new(s, interface, protocol, name,
617
type, domain,
618
AVAHI_PROTO_INET6, 0,
619
resolve_callback, s)))
620
fprintf(stderr, "Failed to resolve service '%s': %s\n", name,
621
avahi_strerror(avahi_server_errno(s)));
622
break;
623
624
case AVAHI_BROWSER_REMOVE:
625
break;
626
627
case AVAHI_BROWSER_ALL_FOR_NOW:
628
case AVAHI_BROWSER_CACHE_EXHAUSTED:
629
break;
741
630
}
742
break;
743
}
744
631
}
745
632
746
633
/* Combines file name and path and returns the malloced new
747
634
string. some sane checks could/should be added */
748
static char *combinepath(const char *first, const char *second){
749
char *tmp;
750
int ret = asprintf(&tmp, "%s/%s", first, second);
751
if(ret < 0){
635
static const char *combinepath(const char *first, const char *second){
636
size_t f_len = strlen(first);
637
size_t s_len = strlen(second);
638
char *tmp = malloc(f_len + s_len + 2);
639
if (tmp == NULL){
752
640
return NULL;
753
641
}
642
if(f_len > 0){
643
memcpy(tmp, first, f_len);
644
}
645
tmp[f_len] = '/';
646
if(s_len > 0){
647
memcpy(tmp + f_len + 1, second, s_len);
648
}
649
tmp[f_len + 1 + s_len] = '\0';
754
650
return tmp;
755
651
}
756
652
757
653
758
int main(int argc, char *argv[]){
654
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
655
AvahiServerConfig config;
759
656
AvahiSServiceBrowser *sb = NULL;
760
657
int error;
761
658
int ret;
762
int exitcode = EXIT_SUCCESS;
659
int returncode = EXIT_SUCCESS;
763
660
const char *interface = "eth0";
764
661
struct ifreq network;
765
662
int sd;
766
uid_t uid;
767
gid_t gid;
768
663
char *connect_to = NULL;
769
664
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
770
char *pubkeyfilename = NULL;
771
char *seckeyfilename = NULL;
772
const char *pubkeyname = "pubkey.txt";
773
const char *seckeyname = "seckey.txt";
774
mandos_context mc = { .simple_poll = NULL, .server = NULL,
775
.dh_bits = 1024, .priority = "SECURE256"};
776
bool gnutls_initalized = false;
777
778
{
779
struct argp_option options[] = {
780
{ .name = "debug", .key = 128,
781
.doc = "Debug mode", .group = 3 },
782
{ .name = "connect", .key = 'c',
783
.arg = "IP",
784
.doc = "Connect directly to a sepcified mandos server",
785
.group = 1 },
786
{ .name = "interface", .key = 'i',
787
.arg = "INTERFACE",
788
.doc = "Interface that Avahi will conntect through",
789
.group = 1 },
790
{ .name = "keydir", .key = 'd',
791
.arg = "KEYDIR",
792
.doc = "Directory where the openpgp keyring is",
793
.group = 1 },
794
{ .name = "seckey", .key = 's',
795
.arg = "SECKEY",
796
.doc = "Secret openpgp key for gnutls authentication",
797
.group = 1 },
798
{ .name = "pubkey", .key = 'p',
799
.arg = "PUBKEY",
800
.doc = "Public openpgp key for gnutls authentication",
801
.group = 2 },
802
{ .name = "dh-bits", .key = 129,
803
.arg = "BITS",
804
.doc = "dh-bits to use in gnutls communication",
805
.group = 2 },
806
{ .name = "priority", .key = 130,
807
.arg = "PRIORITY",
808
.doc = "GNUTLS priority", .group = 1 },
809
{ .name = NULL }
810
};
811
812
813
error_t parse_opt (int key, char *arg,
814
struct argp_state *state) {
815
/* Get the INPUT argument from `argp_parse', which we know is
816
a pointer to our plugin list pointer. */
817
switch (key) {
818
case 128:
819
debug = true;
820
break;
821
case 'c':
822
connect_to = arg;
823
break;
824
case 'i':
825
interface = arg;
826
break;
827
case 'd':
828
keydir = arg;
829
break;
830
case 's':
831
seckeyname = arg;
832
break;
833
case 'p':
834
pubkeyname = arg;
835
break;
836
case 129:
837
errno = 0;
838
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
839
if (errno){
840
perror("strtol");
841
exit(EXIT_FAILURE);
842
}
843
break;
844
case 130:
845
mc.priority = arg;
846
break;
847
case ARGP_KEY_ARG:
848
argp_usage (state);
849
case ARGP_KEY_END:
850
break;
851
default:
852
return ARGP_ERR_UNKNOWN;
853
}
854
return 0;
855
}
856
857
struct argp argp = { .options = options, .parser = parse_opt,
858
.args_doc = "",
859
.doc = "Mandos client -- Get and decrypt"
860
" passwords from mandos server" };
861
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
862
if (ret == ARGP_ERR_UNKNOWN){
863
fprintf(stderr, "Unknown error while parsing arguments\n");
864
exitcode = EXIT_FAILURE;
865
goto end;
866
}
867
}
868
869
pubkeyfilename = combinepath(keydir, pubkeyname);
870
if (pubkeyfilename == NULL){
871
perror("combinepath");
872
exitcode = EXIT_FAILURE;
873
goto end;
874
}
875
876
seckeyfilename = combinepath(keydir, seckeyname);
877
if (seckeyfilename == NULL){
878
perror("combinepath");
879
exitcode = EXIT_FAILURE;
880
goto end;
881
}
882
883
ret = init_gnutls_global(&mc, pubkeyfilename, seckeyfilename);
884
if (ret == -1){
885
fprintf(stderr, "init_gnutls_global failed\n");
886
exitcode = EXIT_FAILURE;
887
goto end;
888
} else {
889
gnutls_initalized = true;
890
}
891
892
/* If the interface is down, bring it up */
893
{
894
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
895
if(sd < 0) {
896
perror("socket");
897
exitcode = EXIT_FAILURE;
898
goto end;
899
}
900
strcpy(network.ifr_name, interface); /* Spurious warning */
901
ret = ioctl(sd, SIOCGIFFLAGS, &network);
902
if(ret == -1){
903
perror("ioctl SIOCGIFFLAGS");
904
exitcode = EXIT_FAILURE;
905
goto end;
906
}
907
if((network.ifr_flags & IFF_UP) == 0){
908
network.ifr_flags |= IFF_UP;
909
ret = ioctl(sd, SIOCSIFFLAGS, &network);
910
if(ret == -1){
911
perror("ioctl SIOCSIFFLAGS");
912
exitcode = EXIT_FAILURE;
913
goto end;
914
}
915
}
916
close(sd);
917
}
918
919
uid = getuid();
920
gid = getgid();
921
922
ret = setuid(uid);
923
if (ret == -1){
924
perror("setuid");
925
}
926
927
setgid(gid);
928
if (ret == -1){
929
perror("setgid");
665
666
while (true){
667
static struct option long_options[] = {
668
{"debug", no_argument, (int *)&debug, 1},
669
{"connect", required_argument, 0, 'C'},
670
{"interface", required_argument, 0, 'i'},
671
{"certdir", required_argument, 0, 'd'},
672
{"certkey", required_argument, 0, 'c'},
673
{"certfile", required_argument, 0, 'k'},
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
default:
703
exit(EXIT_FAILURE);
704
}
705
}
706
707
certfile = combinepath(certdir, certfile);
708
if (certfile == NULL){
709
perror("combinepath");
710
returncode = EXIT_FAILURE;
711
goto exit;
712
}
713
714
certkey = combinepath(certdir, certkey);
715
if (certkey == NULL){
716
perror("combinepath");
717
returncode = EXIT_FAILURE;
718
goto exit;
930
719
}
931
720
932
721
if_index = (AvahiIfIndex) if_nametoindex(interface);
941
730
char *address = strrchr(connect_to, ':');
942
731
if(address == NULL){
943
732
fprintf(stderr, "No colon in address\n");
944
exitcode = EXIT_FAILURE;
945
goto end;
733
exit(EXIT_FAILURE);
946
734
}
947
735
errno = 0;
948
736
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
949
737
if(errno){
950
738
perror("Bad port number");
951
exitcode = EXIT_FAILURE;
952
goto end;
739
exit(EXIT_FAILURE);
953
740
}
954
741
*address = '\0';
955
742
address = connect_to;
956
ret = start_mandos_communication(address, port, if_index, &mc);
743
ret = start_mandos_communication(address, port, if_index);
957
744
if(ret < 0){
958
exitcode = EXIT_FAILURE;
745
exit(EXIT_FAILURE);
959
746
} else {
960
exitcode = EXIT_SUCCESS;
961
}
962
goto end;
963
}
747
exit(EXIT_SUCCESS);
748
}
749
}
750
751
sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
752
if(sd < 0) {
753
perror("socket");
754
returncode = EXIT_FAILURE;
755
goto exit;
756
}
757
strcpy(network.ifr_name, interface);
758
ret = ioctl(sd, SIOCGIFFLAGS, &network);
759
if(ret == -1){
760
761
perror("ioctl SIOCGIFFLAGS");
762
returncode = EXIT_FAILURE;
763
goto exit;
764
}
765
if((network.ifr_flags & IFF_UP) == 0){
766
network.ifr_flags |= IFF_UP;
767
ret = ioctl(sd, SIOCSIFFLAGS, &network);
768
if(ret == -1){
769
perror("ioctl SIOCSIFFLAGS");
770
returncode = EXIT_FAILURE;
771
goto exit;
772
}
773
}
774
close(sd);
964
775
965
776
if (not debug){
966
777
avahi_set_log_function(empty_log);
967
778
}
968
779
969
/* Initialize the pseudo-RNG for Avahi */
780
/* Initialize the psuedo-RNG */
970
781
srand((unsigned int) time(NULL));
971
972
/* Allocate main Avahi loop object */
973
mc.simple_poll = avahi_simple_poll_new();
974
if (mc.simple_poll == NULL) {
975
fprintf(stderr, "Avahi: Failed to create simple poll"
976
" object.\n");
977
exitcode = EXIT_FAILURE;
978
goto end;
979
}
980
981
{
982
AvahiServerConfig config;
983
/* Do not publish any local Zeroconf records */
984
avahi_server_config_init(&config);
985
config.publish_hinfo = 0;
986
config.publish_addresses = 0;
987
config.publish_workstation = 0;
988
config.publish_domain = 0;
989
990
/* Allocate a new server */
991
mc.server = avahi_server_new(avahi_simple_poll_get
992
(mc.simple_poll), &config, NULL,
993
NULL, &error);
994
995
/* Free the Avahi configuration data */
996
avahi_server_config_free(&config);
997
}
998
999
/* Check if creating the Avahi server object succeeded */
1000
if (mc.server == NULL) {
1001
fprintf(stderr, "Failed to create Avahi server: %s\n",
782
783
/* Allocate main loop object */
784
if (!(simple_poll = avahi_simple_poll_new())) {
785
fprintf(stderr, "Failed to create simple poll object.\n");
786
returncode = EXIT_FAILURE;
787
goto exit;
788
}
789
790
/* Do not publish any local records */
791
avahi_server_config_init(&config);
792
config.publish_hinfo = 0;
793
config.publish_addresses = 0;
794
config.publish_workstation = 0;
795
config.publish_domain = 0;
796
797
/* Allocate a new server */
798
server = avahi_server_new(avahi_simple_poll_get(simple_poll),
799
&config, NULL, NULL, &error);
800
801
/* Free the configuration data */
802
avahi_server_config_free(&config);
803
804
/* Check if creating the server object succeeded */
805
if (!server) {
806
fprintf(stderr, "Failed to create server: %s\n",
1002
807
avahi_strerror(error));
1003
exitcode = EXIT_FAILURE;
1004
goto end;
808
returncode = EXIT_FAILURE;
809
goto exit;
1005
810
}
1006
811
1007
/* Create the Avahi service browser */
1008
sb = avahi_s_service_browser_new(mc.server, if_index,
812
/* Create the service browser */
813
sb = avahi_s_service_browser_new(server, if_index,
1009
814
AVAHI_PROTO_INET6,
1010
815
"_mandos._tcp", NULL, 0,
1011
browse_callback, &mc);
1012
if (sb == NULL) {
816
browse_callback, server);
817
if (!sb) {
1013
818
fprintf(stderr, "Failed to create service browser: %s\n",
1014
avahi_strerror(avahi_server_errno(mc.server)));
1015
exitcode = EXIT_FAILURE;
1016
goto end;
819
avahi_strerror(avahi_server_errno(server)));
820
returncode = EXIT_FAILURE;
821
goto exit;
1017
822
}
1018
823
1019
824
/* Run the main loop */
1020
825
1021
826
if (debug){
1022
fprintf(stderr, "Starting Avahi loop search\n");
827
fprintf(stderr, "Starting avahi loop search\n");
1023
828
}
1024
829
1025
avahi_simple_poll_loop(mc.simple_poll);
830
avahi_simple_poll_loop(simple_poll);
1026
831
1027
end:
832
exit:
1028
833
1029
834
if (debug){
1030
835
fprintf(stderr, "%s exiting\n", argv[0]);
1031
836
}
1032
837
1033
838
/* Cleanup things */
1034
if (sb != NULL)
839
if (sb)
1035
840
avahi_s_service_browser_free(sb);
1036
841
1037
if (mc.server != NULL)
1038
avahi_server_free(mc.server);
1039
1040
if (mc.simple_poll != NULL)
1041
avahi_simple_poll_free(mc.simple_poll);
1042
free(pubkeyfilename);
1043
free(seckeyfilename);
1044
1045
if (gnutls_initalized){
1046
gnutls_certificate_free_credentials(mc.cred);
1047
gnutls_global_deinit ();
1048
}
842
if (server)
843
avahi_server_free(server);
844
845
if (simple_poll)
846
avahi_simple_poll_free(simple_poll);
847
free(certfile);
848
free(certkey);
1049
849
1050
return exitcode;
850
return returncode;
1051
851
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0