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- Committer: Teddy Hogeborn
- Date: 2008-09-06 16:33:54 UTC
- Revision ID: teddy@fukt.bsnet.se-20080906163354-x2l238fvbs2xashj
* .bzrignore: Rename "password-request" to "mandos-client".
- files added:
- .bzrignore
- files removed:
- network-protocol.txt
- files renamed:
- plugins.d/password-request.c => plugins.d/mandos-client.c
- plugins.d/password-request.xml => plugins.d/mandos-client.xml
- files modified:
- Makefile
added
removed
plugins.d/mandos-client.c
32
32
#define _LARGEFILE_SOURCE
33
33
#define _FILE_OFFSET_BITS 64
34
34
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY() */
35
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY(), asprintf() */
36
36
37
#include <stdio.h> /* fprintf(), stderr, fwrite(), stdout,
38
ferror() */
37
#include <stdio.h> /* fprintf(), stderr, fwrite(),
38
stdout, ferror() */
39
39
#include <stdint.h> /* uint16_t, uint32_t */
40
40
#include <stddef.h> /* NULL, size_t, ssize_t */
41
41
#include <stdlib.h> /* free(), EXIT_SUCCESS, EXIT_FAILURE,
42
42
srand() */
43
43
#include <stdbool.h> /* bool, true */
44
44
#include <string.h> /* memset(), strcmp(), strlen(),
45
strerror(), memcpy(), strcpy() */
45
strerror(), asprintf(), strcpy() */
46
46
#include <sys/ioctl.h> /* ioctl */
47
47
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
48
48
sockaddr_in6, PF_INET6,
49
49
SOCK_STREAM, INET6_ADDRSTRLEN,
50
uid_t, gid_t */
51
#include <inttypes.h> /* PRIu16 */
50
uid_t, gid_t, open(), opendir(), DIR */
51
#include <sys/stat.h> /* open() */
52
52
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
53
53
struct in6_addr, inet_pton(),
54
54
connect() */
55
#include <fcntl.h> /* open() */
56
#include <dirent.h> /* opendir(), struct dirent, readdir() */
57
#include <inttypes.h> /* PRIu16 */
55
58
#include <assert.h> /* assert() */
56
59
#include <errno.h> /* perror(), errno */
57
60
#include <time.h> /* time() */
58
61
#include <net/if.h> /* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
59
62
SIOCSIFFLAGS, if_indextoname(),
60
63
if_nametoindex(), IF_NAMESIZE */
64
#include <netinet/in.h>
61
65
#include <unistd.h> /* close(), SEEK_SET, off_t, write(),
62
66
getuid(), getgid(), setuid(),
63
67
setgid() */
64
#include <netinet/in.h>
65
68
#include <arpa/inet.h> /* inet_pton(), htons */
66
69
#include <iso646.h> /* not, and */
67
70
#include <argp.h> /* struct argp_option, error_t, struct
81
84
#include <avahi-common/error.h>
82
85
83
86
/* GnuTLS */
84
#include <gnutls/gnutls.h> /* All GnuTLS types, constants and functions
87
#include <gnutls/gnutls.h> /* All GnuTLS types, constants and
88
functions:
85
89
gnutls_*
86
90
init_gnutls_session(),
87
91
GNUTLS_* */
89
93
GNUTLS_OPENPGP_FMT_BASE64 */
90
94
91
95
/* GPGME */
92
#include <gpgme.h> /* All GPGME types, constants and functions
96
#include <gpgme.h> /* All GPGME types, constants and
97
functions:
93
98
gpgme_*
94
99
GPGME_PROTOCOL_OpenPGP,
95
100
GPG_ERR_NO_* */
96
101
97
102
#define BUFFER_SIZE 256
98
103
104
/*
105
#define PATHDIR "/conf/conf.d/mandos"
106
*/
107
108
#define PATHDIR "/conf/conf.d/mandos"
109
#define SECKEY "seckey.txt"
110
#define PUBKEY "pubkey.txt"
111
99
112
bool debug = false;
100
static const char *keydir = "/conf/conf.d/mandos";
101
113
static const char mandos_protocol_version[] = "1";
102
const char *argp_program_version = "password-request 1.0";
114
const char *argp_program_version = "mandos-client 1.0";
103
115
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
104
116
105
117
/* Used for passing in values through the Avahi callback functions */
110
122
unsigned int dh_bits;
111
123
gnutls_dh_params_t dh_params;
112
124
const char *priority;
125
gpgme_ctx_t ctx;
113
126
} mandos_context;
114
127
115
128
/*
130
143
}
131
144
132
145
/*
133
* Decrypt OpenPGP data using keyrings in HOMEDIR.
134
* Returns -1 on error
146
* Initialize GPGME.
135
147
*/
136
static ssize_t pgp_packet_decrypt (const char *cryptotext,
137
size_t crypto_size,
138
char **plaintext,
139
const char *homedir){
140
gpgme_data_t dh_crypto, dh_plain;
141
gpgme_ctx_t ctx;
148
static bool init_gpgme(mandos_context *mc, const char *seckey,
149
const char *pubkey, const char *tempdir){
150
int ret;
142
151
gpgme_error_t rc;
143
ssize_t ret;
144
size_t plaintext_capacity = 0;
145
ssize_t plaintext_length = 0;
146
152
gpgme_engine_info_t engine_info;
147
153
154
155
/*
156
* Helper function to insert pub and seckey to the enigne keyring.
157
*/
158
bool import_key(const char *filename){
159
int fd;
160
gpgme_data_t pgp_data;
161
162
fd = TEMP_FAILURE_RETRY(open(filename, O_RDONLY));
163
if(fd == -1){
164
perror("open");
165
return false;
166
}
167
168
rc = gpgme_data_new_from_fd(&pgp_data, fd);
169
if (rc != GPG_ERR_NO_ERROR){
170
fprintf(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
171
gpgme_strsource(rc), gpgme_strerror(rc));
172
return false;
173
}
174
175
rc = gpgme_op_import(mc->ctx, pgp_data);
176
if (rc != GPG_ERR_NO_ERROR){
177
fprintf(stderr, "bad gpgme_op_import: %s: %s\n",
178
gpgme_strsource(rc), gpgme_strerror(rc));
179
return false;
180
}
181
182
ret = TEMP_FAILURE_RETRY(close(fd));
183
if(ret == -1){
184
perror("close");
185
}
186
gpgme_data_release(pgp_data);
187
return true;
188
}
189
148
190
if (debug){
149
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
191
fprintf(stderr, "Initialize gpgme\n");
150
192
}
151
193
152
194
/* Init GPGME */
155
197
if (rc != GPG_ERR_NO_ERROR){
156
198
fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
157
199
gpgme_strsource(rc), gpgme_strerror(rc));
158
return -1;
200
return false;
159
201
}
160
202
161
/* Set GPGME home directory for the OpenPGP engine only */
203
/* Set GPGME home directory for the OpenPGP engine only */
162
204
rc = gpgme_get_engine_info (&engine_info);
163
205
if (rc != GPG_ERR_NO_ERROR){
164
206
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
165
207
gpgme_strsource(rc), gpgme_strerror(rc));
166
return -1;
208
return false;
167
209
}
168
210
while(engine_info != NULL){
169
211
if(engine_info->protocol == GPGME_PROTOCOL_OpenPGP){
170
212
gpgme_set_engine_info(GPGME_PROTOCOL_OpenPGP,
171
engine_info->file_name, homedir);
213
engine_info->file_name, tempdir);
172
214
break;
173
215
}
174
216
engine_info = engine_info->next;
175
217
}
176
218
if(engine_info == NULL){
177
fprintf(stderr, "Could not set GPGME home dir to %s\n", homedir);
178
return -1;
219
fprintf(stderr, "Could not set GPGME home dir to %s\n", tempdir);
220
return false;
221
}
222
223
/* Create new GPGME "context" */
224
rc = gpgme_new(&(mc->ctx));
225
if (rc != GPG_ERR_NO_ERROR){
226
fprintf(stderr, "bad gpgme_new: %s: %s\n",
227
gpgme_strsource(rc), gpgme_strerror(rc));
228
return false;
229
}
230
231
if (not import_key(pubkey) or not import_key(seckey)){
232
return false;
233
}
234
235
return true;
236
}
237
238
/*
239
* Decrypt OpenPGP data.
240
* Returns -1 on error
241
*/
242
static ssize_t pgp_packet_decrypt (const mandos_context *mc,
243
const char *cryptotext,
244
size_t crypto_size,
245
char **plaintext){
246
gpgme_data_t dh_crypto, dh_plain;
247
gpgme_error_t rc;
248
ssize_t ret;
249
size_t plaintext_capacity = 0;
250
ssize_t plaintext_length = 0;
251
252
if (debug){
253
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
179
254
}
180
255
181
256
/* Create new GPGME data buffer from memory cryptotext */
196
271
return -1;
197
272
}
198
273
199
/* Create new GPGME "context" */
200
rc = gpgme_new(&ctx);
201
if (rc != GPG_ERR_NO_ERROR){
202
fprintf(stderr, "bad gpgme_new: %s: %s\n",
203
gpgme_strsource(rc), gpgme_strerror(rc));
204
plaintext_length = -1;
205
goto decrypt_end;
206
}
207
208
274
/* Decrypt data from the cryptotext data buffer to the plaintext
209
275
data buffer */
210
rc = gpgme_op_decrypt(ctx, dh_crypto, dh_plain);
276
rc = gpgme_op_decrypt(mc->ctx, dh_crypto, dh_plain);
211
277
if (rc != GPG_ERR_NO_ERROR){
212
278
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
213
279
gpgme_strsource(rc), gpgme_strerror(rc));
214
280
plaintext_length = -1;
281
if (debug){
282
gpgme_decrypt_result_t result;
283
result = gpgme_op_decrypt_result(mc->ctx);
284
if (result == NULL){
285
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
286
} else {
287
fprintf(stderr, "Unsupported algorithm: %s\n",
288
result->unsupported_algorithm);
289
fprintf(stderr, "Wrong key usage: %u\n",
290
result->wrong_key_usage);
291
if(result->file_name != NULL){
292
fprintf(stderr, "File name: %s\n", result->file_name);
293
}
294
gpgme_recipient_t recipient;
295
recipient = result->recipients;
296
if(recipient){
297
while(recipient != NULL){
298
fprintf(stderr, "Public key algorithm: %s\n",
299
gpgme_pubkey_algo_name(recipient->pubkey_algo));
300
fprintf(stderr, "Key ID: %s\n", recipient->keyid);
301
fprintf(stderr, "Secret key available: %s\n",
302
recipient->status == GPG_ERR_NO_SECKEY
303
? "No" : "Yes");
304
recipient = recipient->next;
305
}
306
}
307
}
308
}
215
309
goto decrypt_end;
216
310
}
217
311
219
313
fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
220
314
}
221
315
222
if (debug){
223
gpgme_decrypt_result_t result;
224
result = gpgme_op_decrypt_result(ctx);
225
if (result == NULL){
226
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
227
} else {
228
fprintf(stderr, "Unsupported algorithm: %s\n",
229
result->unsupported_algorithm);
230
fprintf(stderr, "Wrong key usage: %u\n",
231
result->wrong_key_usage);
232
if(result->file_name != NULL){
233
fprintf(stderr, "File name: %s\n", result->file_name);
234
}
235
gpgme_recipient_t recipient;
236
recipient = result->recipients;
237
if(recipient){
238
while(recipient != NULL){
239
fprintf(stderr, "Public key algorithm: %s\n",
240
gpgme_pubkey_algo_name(recipient->pubkey_algo));
241
fprintf(stderr, "Key ID: %s\n", recipient->keyid);
242
fprintf(stderr, "Secret key available: %s\n",
243
recipient->status == GPG_ERR_NO_SECKEY
244
? "No" : "Yes");
245
recipient = recipient->next;
246
}
247
}
248
}
249
}
250
251
316
/* Seek back to the beginning of the GPGME plaintext data buffer */
252
317
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
253
318
perror("pgpme_data_seek");
280
345
}
281
346
plaintext_length += ret;
282
347
}
283
348
284
349
if(debug){
285
350
fprintf(stderr, "Decrypted password is: ");
286
351
for(ssize_t i = 0; i < plaintext_length; i++){
300
365
}
301
366
302
367
static const char * safer_gnutls_strerror (int value) {
303
const char *ret = gnutls_strerror (value);
368
const char *ret = gnutls_strerror (value); /* Spurious warning */
304
369
if (ret == NULL)
305
370
ret = "(unknown)";
306
371
return ret;
313
378
}
314
379
315
380
static int init_gnutls_global(mandos_context *mc,
316
const char *pubkeyfile,
317
const char *seckeyfile){
381
const char *pubkeyfilename,
382
const char *seckeyfilename){
318
383
int ret;
319
384
320
385
if(debug){
339
404
/* OpenPGP credentials */
340
405
gnutls_certificate_allocate_credentials(&mc->cred);
341
406
if (ret != GNUTLS_E_SUCCESS){
342
fprintf (stderr, "GnuTLS memory error: %s\n",
407
fprintf (stderr, "GnuTLS memory error: %s\n", /* Spurious
408
warning */
343
409
safer_gnutls_strerror(ret));
344
410
gnutls_global_deinit ();
345
411
return -1;
346
412
}
347
413
348
414
if(debug){
349
fprintf(stderr, "Attempting to use OpenPGP certificate %s"
350
" and keyfile %s as GnuTLS credentials\n", pubkeyfile,
351
seckeyfile);
415
fprintf(stderr, "Attempting to use OpenPGP public key %s and"
416
" secret key %s as GnuTLS credentials\n", pubkeyfilename,
417
seckeyfilename);
352
418
}
353
419
354
420
ret = gnutls_certificate_set_openpgp_key_file
355
(mc->cred, pubkeyfile, seckeyfile, GNUTLS_OPENPGP_FMT_BASE64);
421
(mc->cred, pubkeyfilename, seckeyfilename,
422
GNUTLS_OPENPGP_FMT_BASE64);
356
423
if (ret != GNUTLS_E_SUCCESS) {
357
424
fprintf(stderr,
358
425
"Error[%d] while reading the OpenPGP key pair ('%s',"
359
" '%s')\n", ret, pubkeyfile, seckeyfile);
360
fprintf(stdout, "The GnuTLS error is: %s\n",
426
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
427
fprintf(stderr, "The GnuTLS error is: %s\n",
361
428
safer_gnutls_strerror(ret));
362
429
goto globalfail;
363
430
}
377
444
}
378
445
379
446
gnutls_certificate_set_dh_params(mc->cred, mc->dh_params);
380
447
381
448
return 0;
382
449
383
450
globalfail:
384
451
385
452
gnutls_certificate_free_credentials(mc->cred);
386
453
gnutls_global_deinit();
387
454
return -1;
388
389
455
}
390
456
391
457
static int init_gnutls_session(mandos_context *mc,
463
529
perror("socket");
464
530
return -1;
465
531
}
466
532
467
533
if(debug){
468
534
if(if_indextoname((unsigned int)if_index, interface) == NULL){
469
535
perror("if_indextoname");
472
538
fprintf(stderr, "Binding to interface %s\n", interface);
473
539
}
474
540
475
memset(&to,0,sizeof(to)); /* Spurious warning */
541
memset(&to, 0, sizeof(to));
476
542
to.in6.sin6_family = AF_INET6;
477
543
/* It would be nice to have a way to detect if we were passed an
478
544
IPv4 address here. Now we assume an IPv6 address. */
508
574
perror("connect");
509
575
return -1;
510
576
}
511
577
512
578
const char *out = mandos_protocol_version;
513
579
written = 0;
514
580
while (true){
532
598
}
533
599
}
534
600
}
535
601
536
602
if(debug){
537
603
fprintf(stderr, "Establishing TLS session with %s\n", ip);
538
604
}
539
605
540
606
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
541
607
542
608
do{
543
609
ret = gnutls_handshake (session);
544
610
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
558
624
fprintf(stderr, "Retrieving pgp encrypted password from %s\n",
559
625
ip);
560
626
}
561
627
562
628
while(true){
563
629
buffer_capacity = adjustbuffer(&buffer, buffer_length,
564
630
buffer_capacity);
608
674
gnutls_bye (session, GNUTLS_SHUT_RDWR);
609
675
610
676
if (buffer_length > 0){
611
decrypted_buffer_size = pgp_packet_decrypt(buffer,
677
decrypted_buffer_size = pgp_packet_decrypt(mc, buffer,
612
678
buffer_length,
613
&decrypted_buffer,
614
keydir);
679
&decrypted_buffer);
615
680
if (decrypted_buffer_size >= 0){
616
681
written = 0;
617
682
while(written < (size_t) decrypted_buffer_size){
632
697
} else {
633
698
retval = -1;
634
699
}
700
} else {
701
retval = -1;
635
702
}
636
703
637
704
/* Shutdown procedure */
638
705
639
706
mandos_end:
640
707
free(buffer);
641
close(tcp_sd);
708
ret = TEMP_FAILURE_RETRY(close(tcp_sd));
709
if(ret == -1){
710
perror("close");
711
}
642
712
gnutls_deinit (session);
643
713
return retval;
644
714
}
658
728
flags,
659
729
void* userdata) {
660
730
mandos_context *mc = userdata;
661
assert(r); /* Spurious warning */
731
assert(r);
662
732
663
733
/* Called whenever a service has been resolved successfully or
664
734
timed out */
700
770
flags,
701
771
void* userdata) {
702
772
mandos_context *mc = userdata;
703
assert(b); /* Spurious warning */
773
assert(b);
704
774
705
775
/* Called whenever a new services becomes available on the LAN or
706
776
is removed from the LAN */
740
810
}
741
811
}
742
812
743
/* Combines file name and path and returns the malloced new
744
string. some sane checks could/should be added */
745
static const char *combinepath(const char *first, const char *second){
746
size_t f_len = strlen(first);
747
size_t s_len = strlen(second);
748
char *tmp = malloc(f_len + s_len + 2);
749
if (tmp == NULL){
750
return NULL;
751
}
752
if(f_len > 0){
753
memcpy(tmp, first, f_len); /* Spurious warning */
754
}
755
tmp[f_len] = '/';
756
if(s_len > 0){
757
memcpy(tmp + f_len + 1, second, s_len); /* Spurious warning */
758
}
759
tmp[f_len + 1 + s_len] = '\0';
760
return tmp;
761
}
762
763
764
813
int main(int argc, char *argv[]){
765
814
AvahiSServiceBrowser *sb = NULL;
766
815
int error;
772
821
uid_t uid;
773
822
gid_t gid;
774
823
char *connect_to = NULL;
824
char tempdir[] = "/tmp/mandosXXXXXX";
775
825
AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
776
const char *pubkeyfile = "pubkey.txt";
777
const char *seckeyfile = "seckey.txt";
826
const char *seckey = PATHDIR "/" SECKEY;
827
const char *pubkey = PATHDIR "/" PUBKEY;
828
778
829
mandos_context mc = { .simple_poll = NULL, .server = NULL,
779
.dh_bits = 1024, .priority = "SECURE256"};
830
.dh_bits = 1024, .priority = "SECURE256"
831
":!CTYPE-X.509:+CTYPE-OPENPGP" };
780
832
bool gnutls_initalized = false;
833
bool pgpme_initalized = false;
781
834
782
835
{
783
836
struct argp_option options[] = {
784
837
{ .name = "debug", .key = 128,
785
838
.doc = "Debug mode", .group = 3 },
786
839
{ .name = "connect", .key = 'c',
787
.arg = "IP",
788
.doc = "Connect directly to a sepcified mandos server",
840
.arg = "ADDRESS:PORT",
841
.doc = "Connect directly to a specific Mandos server",
789
842
.group = 1 },
790
843
{ .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",
844
.arg = "NAME",
845
.doc = "Interface that will be used to search for Mandos"
846
" servers",
797
847
.group = 1 },
798
848
{ .name = "seckey", .key = 's',
799
.arg = "SECKEY",
800
.doc = "Secret openpgp key for gnutls authentication",
849
.arg = "FILE",
850
.doc = "OpenPGP secret key file base name",
801
851
.group = 1 },
802
852
{ .name = "pubkey", .key = 'p',
803
.arg = "PUBKEY",
804
.doc = "Public openpgp key for gnutls authentication",
853
.arg = "FILE",
854
.doc = "OpenPGP public key file base name",
805
855
.group = 2 },
806
856
{ .name = "dh-bits", .key = 129,
807
857
.arg = "BITS",
808
.doc = "dh-bits to use in gnutls communication",
858
.doc = "Bit length of the prime number used in the"
859
" Diffie-Hellman key exchange",
809
860
.group = 2 },
810
861
{ .name = "priority", .key = 130,
811
.arg = "PRIORITY",
812
.doc = "GNUTLS priority", .group = 1 },
862
.arg = "STRING",
863
.doc = "GnuTLS priority string for the TLS handshake",
864
.group = 1 },
813
865
{ .name = NULL }
814
866
};
815
816
867
817
868
error_t parse_opt (int key, char *arg,
818
869
struct argp_state *state) {
819
870
/* Get the INPUT argument from `argp_parse', which we know is
820
871
a pointer to our plugin list pointer. */
821
872
switch (key) {
822
case 128:
873
case 128: /* --debug */
823
874
debug = true;
824
875
break;
825
case 'c':
876
case 'c': /* --connect */
826
877
connect_to = arg;
827
878
break;
828
case 'i':
879
case 'i': /* --interface */
829
880
interface = arg;
830
881
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:
882
case 's': /* --seckey */
883
seckey = arg;
884
break;
885
case 'p': /* --pubkey */
886
pubkey = arg;
887
break;
888
case 129: /* --dh-bits */
841
889
errno = 0;
842
890
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
843
891
if (errno){
845
893
exit(EXIT_FAILURE);
846
894
}
847
895
break;
848
case 130:
896
case 130: /* --priority */
849
897
mc.priority = arg;
850
898
break;
851
899
case ARGP_KEY_ARG:
857
905
}
858
906
return 0;
859
907
}
860
908
861
909
struct argp argp = { .options = options, .parser = parse_opt,
862
910
.args_doc = "",
863
911
.doc = "Mandos client -- Get and decrypt"
864
" passwords from mandos server" };
912
" passwords from a Mandos server" };
865
913
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
866
914
if (ret == ARGP_ERR_UNKNOWN){
867
915
fprintf(stderr, "Unknown error while parsing arguments\n");
869
917
goto end;
870
918
}
871
919
}
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
920
896
921
/* If the interface is down, bring it up */
897
922
{
901
926
exitcode = EXIT_FAILURE;
902
927
goto end;
903
928
}
904
strcpy(network.ifr_name, interface); /* Spurious warning */
929
strcpy(network.ifr_name, interface);
905
930
ret = ioctl(sd, SIOCGIFFLAGS, &network);
906
931
if(ret == -1){
907
932
perror("ioctl SIOCGIFFLAGS");
917
942
goto end;
918
943
}
919
944
}
920
close(sd);
945
ret = TEMP_FAILURE_RETRY(close(sd));
946
if(ret == -1){
947
perror("close");
948
}
921
949
}
922
950
923
951
uid = getuid();
933
961
perror("setgid");
934
962
}
935
963
964
ret = init_gnutls_global(&mc, pubkey, seckey);
965
if (ret == -1){
966
fprintf(stderr, "init_gnutls_global failed\n");
967
exitcode = EXIT_FAILURE;
968
goto end;
969
} else {
970
gnutls_initalized = true;
971
}
972
973
if(mkdtemp(tempdir) == NULL){
974
perror("mkdtemp");
975
tempdir[0] = '\0';
976
goto end;
977
}
978
979
if(not init_gpgme(&mc, pubkey, seckey, tempdir)){
980
fprintf(stderr, "pgpme_initalized failed\n");
981
exitcode = EXIT_FAILURE;
982
goto end;
983
} else {
984
pgpme_initalized = true;
985
}
986
936
987
if_index = (AvahiIfIndex) if_nametoindex(interface);
937
988
if(if_index == 0){
938
989
fprintf(stderr, "No such interface: \"%s\"\n", interface);
981
1032
exitcode = EXIT_FAILURE;
982
1033
goto end;
983
1034
}
984
1035
985
1036
{
986
1037
AvahiServerConfig config;
987
1038
/* Do not publish any local Zeroconf records */
990
1041
config.publish_addresses = 0;
991
1042
config.publish_workstation = 0;
992
1043
config.publish_domain = 0;
993
1044
994
1045
/* Allocate a new server */
995
1046
mc.server = avahi_server_new(avahi_simple_poll_get
996
1047
(mc.simple_poll), &config, NULL,
997
1048
NULL, &error);
998
1049
999
1050
/* Free the Avahi configuration data */
1000
1051
avahi_server_config_free(&config);
1001
1052
}
1021
1072
}
1022
1073
1023
1074
/* Run the main loop */
1024
1075
1025
1076
if (debug){
1026
1077
fprintf(stderr, "Starting Avahi loop search\n");
1027
1078
}
1029
1080
avahi_simple_poll_loop(mc.simple_poll);
1030
1081
1031
1082
end:
1032
1083
1033
1084
if (debug){
1034
1085
fprintf(stderr, "%s exiting\n", argv[0]);
1035
1086
}
1040
1091
1041
1092
if (mc.server != NULL)
1042
1093
avahi_server_free(mc.server);
1043
1094
1044
1095
if (mc.simple_poll != NULL)
1045
1096
avahi_simple_poll_free(mc.simple_poll);
1046
free(pubkeyfile);
1047
free(seckeyfile);
1048
1097
1049
1098
if (gnutls_initalized){
1050
1099
gnutls_certificate_free_credentials(mc.cred);
1051
1100
gnutls_global_deinit ();
1052
1101
}
1053
1102
1103
if(pgpme_initalized){
1104
gpgme_release(mc.ctx);
1105
}
1106
1107
/* Removes the temp directory used by GPGME */
1108
if(tempdir[0] != '\0'){
1109
DIR *d;
1110
struct dirent *direntry;
1111
d = opendir(tempdir);
1112
if(d == NULL){
1113
perror("opendir");
1114
} else {
1115
while(true){
1116
direntry = readdir(d);
1117
if(direntry == NULL){
1118
break;
1119
}
1120
if (direntry->d_type == DT_REG){
1121
char *fullname = NULL;
1122
ret = asprintf(&fullname, "%s/%s", tempdir,
1123
direntry->d_name);
1124
if(ret < 0){
1125
perror("asprintf");
1126
continue;
1127
}
1128
ret = unlink(fullname);
1129
if(ret == -1){
1130
fprintf(stderr, "unlink(\"%s\"): %s",
1131
fullname, strerror(errno));
1132
}
1133
free(fullname);
1134
}
1135
}
1136
}
1137
ret = rmdir(tempdir);
1138
if(ret == -1){
1139
perror("rmdir");
1140
}
1141
}
1142
1054
1143
return exitcode;
1055
1144
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0