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- Committer: Björn Påhlsson
- Date: 2008-08-02 15:47:42 UTC
- mfrom: (36 mandos)
- 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-20080802154742-pixsom1utki8x3yo
merge
- files added:
- ca.pem
- files removed:
- COPYING
- files renamed:
- mandos-client.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() */
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_* */
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 functions
85
gnutls_*
86
init_gnutls_session(),
87
GNUTLS_* */
88
#include <gnutls/openpgp.h> /* gnutls_certificate_set_openpgp_key_file(),
89
GNUTLS_OPENPGP_FMT_BASE64 */
90
91
/* GPGME */
92
#include <gpgme.h> /* All GPGME types, constants and functions
93
gpgme_*
94
GPGME_PROTOCOL_OpenPGP,
95
GPG_ERR_NO_* */
50
//mandos client part
51
#include <sys/types.h> /* socket(), inet_pton() */
52
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
53
struct in6_addr, inet_pton() */
54
#include <gnutls/gnutls.h> /* All GnuTLS stuff */
55
#include <gnutls/openpgp.h> /* GnuTLS with openpgp stuff */
56
57
#include <unistd.h> /* close() */
58
#include <netinet/in.h>
59
#include <stdbool.h> /* true */
60
#include <string.h> /* memset */
61
#include <arpa/inet.h> /* inet_pton() */
62
#include <iso646.h> /* not */
63
64
// gpgme
65
#include <errno.h> /* perror() */
66
#include <gpgme.h>
67
68
// getopt long
69
#include <getopt.h>
96
70
97
71
#define BUFFER_SIZE 256
72
#define DH_BITS 1024
73
74
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";
98
77
99
78
bool debug = false;
100
static const char *keydir = "/conf/conf.d/mandos";
101
static const char mandos_protocol_version[] = "1";
102
const char *argp_program_version = "password-request 1.0";
103
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
104
79
105
/* Used for passing in values through the Avahi callback functions */
106
80
typedef struct {
107
AvahiSimplePoll *simple_poll;
108
AvahiServer *server;
81
gnutls_session_t session;
109
82
gnutls_certificate_credentials_t cred;
110
unsigned int dh_bits;
111
83
gnutls_dh_params_t dh_params;
112
const char *priority;
113
} mandos_context;
114
115
/*
116
* Make room in "buffer" for at least BUFFER_SIZE additional bytes.
117
* "buffer_capacity" is how much is currently allocated,
118
* "buffer_length" is how much is already used.
119
*/
120
size_t adjustbuffer(char **buffer, size_t buffer_length,
121
size_t buffer_capacity){
122
if (buffer_length + BUFFER_SIZE > buffer_capacity){
123
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
124
if (buffer == NULL){
125
return 0;
126
}
127
buffer_capacity += BUFFER_SIZE;
128
}
129
return buffer_capacity;
130
}
131
132
/*
133
* Decrypt OpenPGP data using keyrings in HOMEDIR.
134
* Returns -1 on error
135
*/
136
static ssize_t pgp_packet_decrypt (const char *cryptotext,
137
size_t crypto_size,
138
char **plaintext,
84
} encrypted_session;
85
86
87
static ssize_t pgp_packet_decrypt (char *packet, size_t packet_size,
88
char **new_packet,
139
89
const char *homedir){
140
90
gpgme_data_t dh_crypto, dh_plain;
141
91
gpgme_ctx_t ctx;
142
92
gpgme_error_t rc;
143
93
ssize_t ret;
144
size_t plaintext_capacity = 0;
145
ssize_t plaintext_length = 0;
94
ssize_t new_packet_capacity = 0;
95
ssize_t new_packet_length = 0;
146
96
gpgme_engine_info_t engine_info;
147
97
148
98
if (debug){
149
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
99
fprintf(stderr, "Trying to decrypt OpenPGP packet\n");
150
100
}
151
101
152
102
/* Init GPGME */
158
108
return -1;
159
109
}
160
110
161
/* Set GPGME home directory for the OpenPGP engine only */
111
/* Set GPGME home directory */
162
112
rc = gpgme_get_engine_info (&engine_info);
163
113
if (rc != GPG_ERR_NO_ERROR){
164
114
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
174
124
engine_info = engine_info->next;
175
125
}
176
126
if(engine_info == NULL){
177
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
127
fprintf(stderr, "Could not set home dir to %s\n", homedir);
178
128
return -1;
179
129
}
180
130
181
/* Create new GPGME data buffer from memory cryptotext */
182
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
183
0);
131
/* Create new GPGME data buffer from packet buffer */
132
rc = gpgme_data_new_from_mem(&dh_crypto, packet, packet_size, 0);
184
133
if (rc != GPG_ERR_NO_ERROR){
185
134
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
186
135
gpgme_strsource(rc), gpgme_strerror(rc));
192
141
if (rc != GPG_ERR_NO_ERROR){
193
142
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
194
143
gpgme_strsource(rc), gpgme_strerror(rc));
195
gpgme_data_release(dh_crypto);
196
144
return -1;
197
145
}
198
146
201
149
if (rc != GPG_ERR_NO_ERROR){
202
150
fprintf(stderr, "bad gpgme_new: %s: %s\n",
203
151
gpgme_strsource(rc), gpgme_strerror(rc));
204
plaintext_length = -1;
205
goto decrypt_end;
152
return -1;
206
153
}
207
154
208
/* Decrypt data from the cryptotext data buffer to the plaintext
209
data buffer */
155
/* Decrypt data from the FILE pointer to the plaintext data
156
buffer */
210
157
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
211
158
if (rc != GPG_ERR_NO_ERROR){
212
159
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
213
160
gpgme_strsource(rc), gpgme_strerror(rc));
214
plaintext_length = -1;
215
goto decrypt_end;
161
return -1;
216
162
}
217
163
218
164
if(debug){
219
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
165
fprintf(stderr, "Decryption of OpenPGP packet succeeded\n");
220
166
}
221
167
222
168
if (debug){
223
169
gpgme_decrypt_result_t result;
224
170
result = gpgme_op_decrypt_result(ctx);
227
173
} else {
228
174
fprintf(stderr, "Unsupported algorithm: %s\n",
229
175
result->unsupported_algorithm);
230
fprintf(stderr, "Wrong key usage: %u\n",
176
fprintf(stderr, "Wrong key usage: %d\n",
231
177
result->wrong_key_usage);
232
178
if(result->file_name != NULL){
233
179
fprintf(stderr, "File name: %s\n", result->file_name);
248
194
}
249
195
}
250
196
197
/* Delete the GPGME FILE pointer cryptotext data buffer */
198
gpgme_data_release(dh_crypto);
199
251
200
/* Seek back to the beginning of the GPGME plaintext data buffer */
252
201
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
253
202
perror("pgpme_data_seek");
254
plaintext_length = -1;
255
goto decrypt_end;
256
203
}
257
204
258
*plaintext = NULL;
205
*new_packet = 0;
259
206
while(true){
260
plaintext_capacity = adjustbuffer(plaintext,
261
(size_t)plaintext_length,
262
plaintext_capacity);
263
if (plaintext_capacity == 0){
264
perror("adjustbuffer");
265
plaintext_length = -1;
266
goto decrypt_end;
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;
267
216
}
268
217
269
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
218
ret = gpgme_data_read(dh_plain, *new_packet + new_packet_length,
270
219
BUFFER_SIZE);
271
220
/* Print the data, if any */
272
221
if (ret == 0){
273
/* EOF */
274
222
break;
275
223
}
276
224
if(ret < 0){
277
225
perror("gpgme_data_read");
278
plaintext_length = -1;
279
goto decrypt_end;
226
return -1;
280
227
}
281
plaintext_length += ret;
228
new_packet_length += ret;
282
229
}
283
230
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);
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
/* } */
296
238
297
239
/* Delete the GPGME plaintext data buffer */
298
240
gpgme_data_release(dh_plain);
299
return plaintext_length;
241
return new_packet_length;
300
242
}
301
243
302
244
static const char * safer_gnutls_strerror (int value) {
306
248
return ret;
307
249
}
308
250
309
/* GnuTLS log function callback */
310
251
static void debuggnutls(__attribute__((unused)) int level,
311
252
const char* string){
312
fprintf(stderr, "GnuTLS: %s", string);
253
fprintf(stderr, "%s", string);
313
254
}
314
255
315
static int init_gnutls_global(mandos_context *mc,
316
const char *pubkeyfile,
317
const char *seckeyfile){
256
static int initgnutls(encrypted_session *es){
257
const char *err;
318
258
int ret;
319
259
320
260
if(debug){
321
261
fprintf(stderr, "Initializing GnuTLS\n");
322
262
}
323
324
ret = gnutls_global_init();
325
if (ret != GNUTLS_E_SUCCESS) {
326
fprintf (stderr, "GnuTLS global_init: %s\n",
327
safer_gnutls_strerror(ret));
263
264
if ((ret = gnutls_global_init ())
265
!= GNUTLS_E_SUCCESS) {
266
fprintf (stderr, "global_init: %s\n", safer_gnutls_strerror(ret));
328
267
return -1;
329
268
}
330
269
331
270
if (debug){
332
/* "Use a log level over 10 to enable all debugging options."
333
* - GnuTLS manual
334
*/
335
271
gnutls_global_set_log_level(11);
336
272
gnutls_global_set_log_function(debuggnutls);
337
273
}
338
274
339
/* OpenPGP credentials */
340
gnutls_certificate_allocate_credentials(&mc->cred);
341
if (ret != GNUTLS_E_SUCCESS){
342
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",
343
279
safer_gnutls_strerror(ret));
344
gnutls_global_deinit ();
345
280
return -1;
346
281
}
347
282
348
283
if(debug){
349
284
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
350
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
351
seckeyfile);
285
" and keyfile %s as GnuTLS credentials\n", certfile,
286
certkey);
352
287
}
353
288
354
289
ret = gnutls_certificate_set_openpgp_key_file
355
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
290
(es->cred, certfile, certkey, GNUTLS_OPENPGP_FMT_BASE64);
356
291
if (ret != GNUTLS_E_SUCCESS) {
357
fprintf(stderr,
358
"Error[%d] while reading the OpenPGP key pair ('%s',"
359
" '%s')\n", ret, pubkeyfile, seckeyfile);
360
fprintf(stdout, "The GnuTLS error is: %s\n",
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",
361
297
safer_gnutls_strerror(ret));
362
goto globalfail;
363
}
364
365
/* GnuTLS server initialization */
366
ret = gnutls_dh_params_init(&mc->dh_params);
367
if (ret != GNUTLS_E_SUCCESS) {
368
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
369
" %s\n", safer_gnutls_strerror(ret));
370
goto globalfail;
371
}
372
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
373
if (ret != GNUTLS_E_SUCCESS) {
374
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
375
safer_gnutls_strerror(ret));
376
goto globalfail;
377
}
378
379
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
380
381
return 0;
382
383
globalfail:
384
385
gnutls_certificate_free_credentials(mc->cred);
386
gnutls_global_deinit();
387
return -1;
388
389
}
390
391
static int init_gnutls_session(mandos_context *mc,
392
gnutls_session_t *session){
393
int ret;
394
/* GnuTLS session creation */
395
ret = gnutls_init(session, GNUTLS_SERVER);
396
if (ret != GNUTLS_E_SUCCESS){
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){
397
321
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
398
322
safer_gnutls_strerror(ret));
399
323
}
400
324
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
}
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;
411
331
}
412
332
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",
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",
417
337
safer_gnutls_strerror(ret));
418
gnutls_deinit (*session);
419
338
return -1;
420
339
}
421
340
422
341
/* ignore client certificate if any. */
423
gnutls_certificate_server_set_request (*session,
342
gnutls_certificate_server_set_request (es->session,
424
343
GNUTLS_CERT_IGNORE);
425
344
426
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
345
gnutls_dh_set_prime_bits (es->session, DH_BITS);
427
346
428
347
return 0;
429
348
}
430
349
431
/* Avahi log function callback */
432
350
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
433
351
__attribute__((unused)) const char *txt){}
434
352
435
/* Called when a Mandos server is found */
436
353
static int start_mandos_communication(const char *ip, uint16_t port,
437
AvahiIfIndex if_index,
438
mandos_context *mc){
354
AvahiIfIndex if_index){
439
355
int ret, tcp_sd;
440
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
356
struct sockaddr_in6 to;
357
encrypted_session es;
441
358
char *buffer = NULL;
442
359
char *decrypted_buffer;
443
360
size_t buffer_length = 0;
444
361
size_t buffer_capacity = 0;
445
362
ssize_t decrypted_buffer_size;
446
size_t written;
363
size_t written = 0;
447
364
int retval = 0;
448
365
char interface[IF_NAMESIZE];
449
gnutls_session_t session;
450
451
ret = init_gnutls_session (mc, &session);
452
if (ret != 0){
453
return -1;
454
}
455
366
456
367
if(debug){
457
fprintf(stderr, "Setting up a tcp connection to %s, port %" PRIu16
458
"\n", ip, port);
368
fprintf(stderr, "Setting up a tcp connection to %s, port %d\n",
369
ip, port);
459
370
}
460
371
461
372
tcp_sd = socket(PF_INET6, SOCK_STREAM, 0);
466
377
467
378
if(debug){
468
379
if(if_indextoname((unsigned int)if_index, interface) == NULL){
469
perror("if_indextoname");
380
if(debug){
381
perror("if_indextoname");
382
}
470
383
return -1;
471
384
}
385
472
386
fprintf(stderr, "Binding to interface %s\n", interface);
473
387
}
474
388
475
389
memset(&to,0,sizeof(to)); /* Spurious warning */
476
to.in6.sin6_family = AF_INET6;
477
/* It would be nice to have a way to detect if we were passed an
478
IPv4 address here. Now we assume an IPv6 address. */
479
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
390
to.sin6_family = AF_INET6;
391
ret = inet_pton(AF_INET6, ip, &to.sin6_addr);
480
392
if (ret < 0 ){
481
393
perror("inet_pton");
482
394
return -1;
483
}
395
}
484
396
if(ret == 0){
485
397
fprintf(stderr, "Bad address: %s\n", ip);
486
398
return -1;
487
399
}
488
to.in6.sin6_port = htons(port); /* Spurious warning */
400
to.sin6_port = htons(port); /* Spurious warning */
489
401
490
to.in6.sin6_scope_id = (uint32_t)if_index;
402
to.sin6_scope_id = (uint32_t)if_index;
491
403
492
404
if(debug){
493
fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
494
port);
495
char addrstr[INET6_ADDRSTRLEN] = "";
496
if(inet_ntop(to.in6.sin6_family, &(to.in6.sin6_addr), addrstr,
497
sizeof(addrstr)) == NULL){
498
perror("inet_ntop");
499
} else {
500
if(strcmp(addrstr, ip) != 0){
501
fprintf(stderr, "Canonical address form: %s\n", addrstr);
502
}
503
}
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
/* } */
504
414
}
505
415
506
ret = connect(tcp_sd, &to.in, sizeof(to));
416
ret = connect(tcp_sd, (struct sockaddr *) &to, sizeof(to));
507
417
if (ret < 0){
508
418
perror("connect");
509
419
return -1;
510
420
}
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
}
421
422
ret = initgnutls (&es);
423
if (ret != 0){
424
retval = -1;
425
return -1;
534
426
}
535
427
428
gnutls_transport_set_ptr (es.session,
429
(gnutls_transport_ptr_t) tcp_sd);
430
536
431
if(debug){
537
432
fprintf(stderr, "Establishing TLS session with %s\n", ip);
538
433
}
539
434
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);
435
ret = gnutls_handshake (es.session);
545
436
546
437
if (ret != GNUTLS_E_SUCCESS){
547
438
if(debug){
548
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
439
fprintf(stderr, "\n*** Handshake failed ***\n");
549
440
gnutls_perror (ret);
550
441
}
551
442
retval = -1;
552
goto mandos_end;
443
goto exit;
553
444
}
554
445
555
/* Read OpenPGP packet that contains the wanted password */
446
//Retrieve OpenPGP packet that contains the wanted password
556
447
557
448
if(debug){
558
449
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
560
451
}
561
452
562
453
while(true){
563
buffer_capacity = adjustbuffer(&buffer, buffer_length,
564
buffer_capacity);
565
if (buffer_capacity == 0){
566
perror("adjustbuffer");
567
retval = -1;
568
goto mandos_end;
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;
569
461
}
570
462
571
ret = gnutls_record_recv(session, buffer+buffer_length,
572
BUFFER_SIZE);
463
ret = gnutls_record_recv
464
(es.session, buffer+buffer_length, BUFFER_SIZE);
573
465
if (ret == 0){
574
466
break;
575
467
}
579
471
case GNUTLS_E_AGAIN:
580
472
break;
581
473
case GNUTLS_E_REHANDSHAKE:
582
do{
583
ret = gnutls_handshake (session);
584
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
474
ret = gnutls_handshake (es.session);
585
475
if (ret < 0){
586
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
476
fprintf(stderr, "\n*** Handshake failed ***\n");
587
477
gnutls_perror (ret);
588
478
retval = -1;
589
goto mandos_end;
479
goto exit;
590
480
}
591
481
break;
592
482
default:
593
483
fprintf(stderr, "Unknown error while reading data from"
594
" encrypted session with Mandos server\n");
484
" encrypted session with mandos server\n");
595
485
retval = -1;
596
gnutls_bye (session, GNUTLS_SHUT_RDWR);
597
goto mandos_end;
486
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
487
goto exit;
598
488
}
599
489
} else {
600
490
buffer_length += (size_t) ret;
601
491
}
602
492
}
603
493
604
if(debug){
605
fprintf(stderr, "Closing TLS session\n");
606
}
607
608
gnutls_bye (session, GNUTLS_SHUT_RDWR);
609
610
494
if (buffer_length > 0){
611
495
decrypted_buffer_size = pgp_packet_decrypt(buffer,
612
496
buffer_length,
613
497
&decrypted_buffer,
614
keydir);
498
certdir);
615
499
if (decrypted_buffer_size >= 0){
616
written = 0;
617
500
while(written < (size_t) decrypted_buffer_size){
618
501
ret = (int)fwrite (decrypted_buffer + written, 1,
619
502
(size_t)decrypted_buffer_size - written,
633
516
retval = -1;
634
517
}
635
518
}
636
637
/* Shutdown procedure */
638
639
mandos_end:
519
520
//shutdown procedure
521
522
if(debug){
523
fprintf(stderr, "Closing TLS session\n");
524
}
525
640
526
free(buffer);
527
gnutls_bye (es.session, GNUTLS_SHUT_RDWR);
528
exit:
641
529
close(tcp_sd);
642
gnutls_deinit (session);
530
gnutls_deinit (es.session);
531
gnutls_certificate_free_credentials (es.cred);
532
gnutls_global_deinit ();
643
533
return retval;
644
534
}
645
535
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;
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
661
554
assert(r); /* Spurious warning */
662
555
663
556
/* Called whenever a service has been resolved successfully or
666
559
switch (event) {
667
560
default:
668
561
case AVAHI_RESOLVER_FAILURE:
669
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
670
" of type '%s' in domain '%s': %s\n", name, type, domain,
671
avahi_strerror(avahi_server_errno(mc->server)));
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)));
672
565
break;
673
566
674
567
case AVAHI_RESOLVER_FOUND:
676
569
char ip[AVAHI_ADDRESS_STR_MAX];
677
570
avahi_address_snprint(ip, sizeof(ip), address);
678
571
if(debug){
679
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
680
PRIu16 ") on port %d\n", name, host_name, ip,
681
interface, port);
572
fprintf(stderr, "Mandos server \"%s\" found on %s (%s) on"
573
" port %d\n", name, host_name, ip, port);
682
574
}
683
int ret = start_mandos_communication(ip, port, interface, mc);
575
int ret = start_mandos_communication(ip, port, interface);
684
576
if (ret == 0){
685
avahi_simple_poll_quit(mc->simple_poll);
577
exit(EXIT_SUCCESS);
686
578
}
687
579
}
688
580
}
689
581
avahi_s_service_resolver_free(r);
690
582
}
691
583
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");
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;
738
630
}
739
break;
740
}
741
631
}
742
632
743
633
/* Combines file name and path and returns the malloced new
750
640
return NULL;
751
641
}
752
642
if(f_len > 0){
753
memcpy(tmp, first, f_len); /* Spurious warning */
643
memcpy(tmp, first, f_len);
754
644
}
755
645
tmp[f_len] = '/';
756
646
if(s_len > 0){
757
memcpy(tmp + f_len + 1, second, s_len); /* Spurious warning */
647
memcpy(tmp + f_len + 1, second, s_len);
758
648
}
759
649
tmp[f_len + 1 + s_len] = '\0';
760
650
return tmp;
761
651
}
762
652
763
653
764
int main(int argc, char *argv[]){
654
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) {
655
AvahiServerConfig config;
765
656
AvahiSServiceBrowser *sb = NULL;
766
657
int error;
767
658
int ret;
768
int exitcode = EXIT_SUCCESS;
659
int returncode = EXIT_SUCCESS;
769
660
const char *interface = "eth0";
770
661
struct ifreq network;
771
662
int sd;
772
uid_t uid;
773
gid_t gid;
774
663
char *connect_to = NULL;
775
664
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
776
const char *pubkeyfile = "pubkey.txt";
777
const char *seckeyfile = "seckey.txt";
778
mandos_context mc = { .simple_poll = NULL, .server = NULL,
779
.dh_bits = 1024, .priority = "SECURE256"};
780
bool gnutls_initalized = false;
781
782
{
783
struct argp_option options[] = {
784
{ .name = "debug", .key = 128,
785
.doc = "Debug mode", .group = 3 },
786
{ .name = "connect", .key = 'c',
787
.arg = "IP",
788
.doc = "Connect directly to a sepcified mandos server",
789
.group = 1 },
790
{ .name = "interface", .key = 'i',
791
.arg = "INTERFACE",
792
.doc = "Interface that Avahi will conntect through",
793
.group = 1 },
794
{ .name = "keydir", .key = 'd',
795
.arg = "KEYDIR",
796
.doc = "Directory where the openpgp keyring is",
797
.group = 1 },
798
{ .name = "seckey", .key = 's',
799
.arg = "SECKEY",
800
.doc = "Secret openpgp key for gnutls authentication",
801
.group = 1 },
802
{ .name = "pubkey", .key = 'p',
803
.arg = "PUBKEY",
804
.doc = "Public openpgp key for gnutls authentication",
805
.group = 2 },
806
{ .name = "dh-bits", .key = 129,
807
.arg = "BITS",
808
.doc = "dh-bits to use in gnutls communication",
809
.group = 2 },
810
{ .name = "priority", .key = 130,
811
.arg = "PRIORITY",
812
.doc = "GNUTLS priority", .group = 1 },
813
{ .name = NULL }
814
};
815
816
817
error_t parse_opt (int key, char *arg,
818
struct argp_state *state) {
819
/* Get the INPUT argument from `argp_parse', which we know is
820
a pointer to our plugin list pointer. */
821
switch (key) {
822
case 128:
823
debug = true;
824
break;
825
case 'c':
826
connect_to = arg;
827
break;
828
case 'i':
829
interface = arg;
830
break;
831
case 'd':
832
keydir = arg;
833
break;
834
case 's':
835
seckeyfile = arg;
836
break;
837
case 'p':
838
pubkeyfile = arg;
839
break;
840
case 129:
841
errno = 0;
842
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
843
if (errno){
844
perror("strtol");
845
exit(EXIT_FAILURE);
846
}
847
break;
848
case 130:
849
mc.priority = arg;
850
break;
851
case ARGP_KEY_ARG:
852
argp_usage (state);
853
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");
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;
934
719
}
935
720
936
721
if_index = (AvahiIfIndex) if_nametoindex(interface);
945
730
char *address = strrchr(connect_to, ':');
946
731
if(address == NULL){
947
732
fprintf(stderr, "No colon in address\n");
948
exitcode = EXIT_FAILURE;
949
goto end;
733
exit(EXIT_FAILURE);
950
734
}
951
735
errno = 0;
952
736
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
953
737
if(errno){
954
738
perror("Bad port number");
955
exitcode = EXIT_FAILURE;
956
goto end;
739
exit(EXIT_FAILURE);
957
740
}
958
741
*address = '\0';
959
742
address = connect_to;
960
ret = start_mandos_communication(address, port, if_index, &mc);
743
ret = start_mandos_communication(address, port, if_index);
961
744
if(ret < 0){
962
exitcode = EXIT_FAILURE;
745
exit(EXIT_FAILURE);
963
746
} else {
964
exitcode = EXIT_SUCCESS;
965
}
966
goto end;
967
}
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);
968
775
969
776
if (not debug){
970
777
avahi_set_log_function(empty_log);
971
778
}
972
779
973
/* Initialize the pseudo-RNG for Avahi */
780
/* Initialize the psuedo-RNG */
974
781
srand((unsigned int) time(NULL));
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",
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",
1006
807
avahi_strerror(error));
1007
exitcode = EXIT_FAILURE;
1008
goto end;
808
returncode = EXIT_FAILURE;
809
goto exit;
1009
810
}
1010
811
1011
/* Create the Avahi service browser */
1012
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,
1013
814
AVAHI_PROTO_INET6,
1014
815
"_mandos._tcp", NULL, 0,
1015
browse_callback, &mc);
1016
if (sb == NULL) {
816
browse_callback, server);
817
if (!sb) {
1017
818
fprintf(stderr, "Failed to create service browser: %s\n",
1018
avahi_strerror(avahi_server_errno(mc.server)));
1019
exitcode = EXIT_FAILURE;
1020
goto end;
819
avahi_strerror(avahi_server_errno(server)));
820
returncode = EXIT_FAILURE;
821
goto exit;
1021
822
}
1022
823
1023
824
/* Run the main loop */
1024
825
1025
826
if (debug){
1026
fprintf(stderr, "Starting Avahi loop search\n");
827
fprintf(stderr, "Starting avahi loop search\n");
1027
828
}
1028
829
1029
avahi_simple_poll_loop(mc.simple_poll);
830
avahi_simple_poll_loop(simple_poll);
1030
831
1031
end:
832
exit:
1032
833
1033
834
if (debug){
1034
835
fprintf(stderr, "%s exiting\n", argv[0]);
1035
836
}
1036
837
1037
838
/* Cleanup things */
1038
if (sb != NULL)
839
if (sb)
1039
840
avahi_s_service_browser_free(sb);
1040
841
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
}
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);
1053
849
1054
return exitcode;
850
return returncode;
1055
851
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0