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- Committer: Teddy Hogeborn
- Date: 2009-01-06 22:54:01 UTC
- Revision ID: teddy@fukt.bsnet.se-20090106225401-7l9f7s3hw9eissra
* mandos (main): Try to find non-privileged user+group in pairs, so
that mismatched pairs are never used.
that mismatched pairs are never used.
- files removed:
- debian/watch
- files renamed:
- mandos-ctl => mandos-list *
- files modified:
- Makefile
added
removed
plugins.d/mandos-client.c
1
1
/* -*- coding: utf-8 -*- */
2
2
/*
3
* Mandos-client - get and decrypt data from a Mandos server
3
* Mandos client - get and decrypt data from a Mandos server
4
4
*
5
5
* This program is partly derived from an example program for an Avahi
6
6
* service browser, downloaded from
36
36
#define _GNU_SOURCE /* TEMP_FAILURE_RETRY(), asprintf() */
37
37
38
38
#include <stdio.h> /* fprintf(), stderr, fwrite(),
39
stdout, ferror(), sscanf */
39
stdout, ferror() */
40
40
#include <stdint.h> /* uint16_t, uint32_t */
41
41
#include <stddef.h> /* NULL, size_t, ssize_t */
42
42
#include <stdlib.h> /* free(), EXIT_SUCCESS, EXIT_FAILURE,
48
48
#include <sys/types.h> /* socket(), inet_pton(), sockaddr,
49
49
sockaddr_in6, PF_INET6,
50
50
SOCK_STREAM, INET6_ADDRSTRLEN,
51
uid_t, gid_t, open(), opendir(),
52
DIR */
51
uid_t, gid_t, open(), opendir(), DIR */
53
52
#include <sys/stat.h> /* open() */
54
53
#include <sys/socket.h> /* socket(), struct sockaddr_in6,
55
54
struct in6_addr, inet_pton(),
56
55
connect() */
57
56
#include <fcntl.h> /* open() */
58
#include <dirent.h> /* opendir(), struct dirent, readdir()
59
*/
60
#include <inttypes.h> /* PRIu16, intmax_t, SCNdMAX */
57
#include <dirent.h> /* opendir(), struct dirent, readdir() */
58
#include <inttypes.h> /* PRIu16 */
61
59
#include <assert.h> /* assert() */
62
60
#include <errno.h> /* perror(), errno */
63
61
#include <time.h> /* time() */
69
67
getuid(), getgid(), setuid(),
70
68
setgid() */
71
69
#include <arpa/inet.h> /* inet_pton(), htons */
72
#include <iso646.h> /* not, and, or */
70
#include <iso646.h> /* not, and */
73
71
#include <argp.h> /* struct argp_option, error_t, struct
74
72
argp_state, struct argp,
75
73
argp_parse(), ARGP_KEY_ARG,
92
90
gnutls_*
93
91
init_gnutls_session(),
94
92
GNUTLS_* */
95
#include <gnutls/openpgp.h>
96
/* gnutls_certificate_set_openpgp_key_file(),
93
#include <gnutls/openpgp.h> /* gnutls_certificate_set_openpgp_key_file(),
97
94
GNUTLS_OPENPGP_FMT_BASE64 */
98
95
99
96
/* GPGME */
132
129
*/
133
130
size_t adjustbuffer(char **buffer, size_t buffer_length,
134
131
size_t buffer_capacity){
135
if(buffer_length + BUFFER_SIZE > buffer_capacity){
132
if (buffer_length + BUFFER_SIZE > buffer_capacity){
136
133
*buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
137
if(buffer == NULL){
134
if (buffer == NULL){
138
135
return 0;
139
136
}
140
137
buffer_capacity += BUFFER_SIZE;
159
156
int fd;
160
157
gpgme_data_t pgp_data;
161
158
162
fd = (int)TEMP_FAILURE_RETRY(open(filename, O_RDONLY));
159
fd = TEMP_FAILURE_RETRY(open(filename, O_RDONLY));
163
160
if(fd == -1){
164
161
perror("open");
165
162
return false;
166
163
}
167
164
168
165
rc = gpgme_data_new_from_fd(&pgp_data, fd);
169
if(rc != GPG_ERR_NO_ERROR){
166
if (rc != GPG_ERR_NO_ERROR){
170
167
fprintf(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
171
168
gpgme_strsource(rc), gpgme_strerror(rc));
172
169
return false;
173
170
}
174
171
175
172
rc = gpgme_op_import(mc->ctx, pgp_data);
176
if(rc != GPG_ERR_NO_ERROR){
173
if (rc != GPG_ERR_NO_ERROR){
177
174
fprintf(stderr, "bad gpgme_op_import: %s: %s\n",
178
175
gpgme_strsource(rc), gpgme_strerror(rc));
179
176
return false;
180
177
}
181
178
182
ret = (int)TEMP_FAILURE_RETRY(close(fd));
179
ret = TEMP_FAILURE_RETRY(close(fd));
183
180
if(ret == -1){
184
181
perror("close");
185
182
}
187
184
return true;
188
185
}
189
186
190
if(debug){
187
if (debug){
191
188
fprintf(stderr, "Initialize gpgme\n");
192
189
}
193
190
194
191
/* Init GPGME */
195
192
gpgme_check_version(NULL);
196
193
rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
197
if(rc != GPG_ERR_NO_ERROR){
194
if (rc != GPG_ERR_NO_ERROR){
198
195
fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
199
196
gpgme_strsource(rc), gpgme_strerror(rc));
200
197
return false;
201
198
}
202
199
203
200
/* Set GPGME home directory for the OpenPGP engine only */
204
rc = gpgme_get_engine_info(&engine_info);
205
if(rc != GPG_ERR_NO_ERROR){
201
rc = gpgme_get_engine_info (&engine_info);
202
if (rc != GPG_ERR_NO_ERROR){
206
203
fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
207
204
gpgme_strsource(rc), gpgme_strerror(rc));
208
205
return false;
222
219
223
220
/* Create new GPGME "context" */
224
221
rc = gpgme_new(&(mc->ctx));
225
if(rc != GPG_ERR_NO_ERROR){
222
if (rc != GPG_ERR_NO_ERROR){
226
223
fprintf(stderr, "bad gpgme_new: %s: %s\n",
227
224
gpgme_strsource(rc), gpgme_strerror(rc));
228
225
return false;
229
226
}
230
227
231
if(not import_key(pubkey) or not import_key(seckey)){
228
if (not import_key(pubkey) or not import_key(seckey)){
232
229
return false;
233
230
}
234
231
239
236
* Decrypt OpenPGP data.
240
237
* Returns -1 on error
241
238
*/
242
static ssize_t pgp_packet_decrypt(const mandos_context *mc,
243
const char *cryptotext,
244
size_t crypto_size,
245
char **plaintext){
239
static ssize_t pgp_packet_decrypt (const mandos_context *mc,
240
const char *cryptotext,
241
size_t crypto_size,
242
char **plaintext){
246
243
gpgme_data_t dh_crypto, dh_plain;
247
244
gpgme_error_t rc;
248
245
ssize_t ret;
249
246
size_t plaintext_capacity = 0;
250
247
ssize_t plaintext_length = 0;
251
248
252
if(debug){
249
if (debug){
253
250
fprintf(stderr, "Trying to decrypt OpenPGP data\n");
254
251
}
255
252
256
253
/* Create new GPGME data buffer from memory cryptotext */
257
254
rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
258
255
0);
259
if(rc != GPG_ERR_NO_ERROR){
256
if (rc != GPG_ERR_NO_ERROR){
260
257
fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
261
258
gpgme_strsource(rc), gpgme_strerror(rc));
262
259
return -1;
264
261
265
262
/* Create new empty GPGME data buffer for the plaintext */
266
263
rc = gpgme_data_new(&dh_plain);
267
if(rc != GPG_ERR_NO_ERROR){
264
if (rc != GPG_ERR_NO_ERROR){
268
265
fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
269
266
gpgme_strsource(rc), gpgme_strerror(rc));
270
267
gpgme_data_release(dh_crypto);
274
271
/* Decrypt data from the cryptotext data buffer to the plaintext
275
272
data buffer */
276
273
rc = gpgme_op_decrypt(mc->ctx, dh_crypto, dh_plain);
277
if(rc != GPG_ERR_NO_ERROR){
274
if (rc != GPG_ERR_NO_ERROR){
278
275
fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
279
276
gpgme_strsource(rc), gpgme_strerror(rc));
280
277
plaintext_length = -1;
281
if(debug){
278
if (debug){
282
279
gpgme_decrypt_result_t result;
283
280
result = gpgme_op_decrypt_result(mc->ctx);
284
if(result == NULL){
281
if (result == NULL){
285
282
fprintf(stderr, "gpgme_op_decrypt_result failed\n");
286
283
} else {
287
284
fprintf(stderr, "Unsupported algorithm: %s\n",
314
311
}
315
312
316
313
/* Seek back to the beginning of the GPGME plaintext data buffer */
317
if(gpgme_data_seek(dh_plain, (off_t)0, SEEK_SET) == -1){
314
if (gpgme_data_seek(dh_plain, (off_t) 0, SEEK_SET) == -1){
318
315
perror("gpgme_data_seek");
319
316
plaintext_length = -1;
320
317
goto decrypt_end;
325
322
plaintext_capacity = adjustbuffer(plaintext,
326
323
(size_t)plaintext_length,
327
324
plaintext_capacity);
328
if(plaintext_capacity == 0){
325
if (plaintext_capacity == 0){
329
326
perror("adjustbuffer");
330
327
plaintext_length = -1;
331
328
goto decrypt_end;
334
331
ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
335
332
BUFFER_SIZE);
336
333
/* Print the data, if any */
337
if(ret == 0){
334
if (ret == 0){
338
335
/* EOF */
339
336
break;
340
337
}
364
361
return plaintext_length;
365
362
}
366
363
367
static const char * safer_gnutls_strerror(int value) {
368
const char *ret = gnutls_strerror(value); /* Spurious warning from
369
-Wunreachable-code */
370
if(ret == NULL)
364
static const char * safer_gnutls_strerror (int value) {
365
const char *ret = gnutls_strerror (value); /* Spurious warning */
366
if (ret == NULL)
371
367
ret = "(unknown)";
372
368
return ret;
373
369
}
388
384
}
389
385
390
386
ret = gnutls_global_init();
391
if(ret != GNUTLS_E_SUCCESS) {
392
fprintf(stderr, "GnuTLS global_init: %s\n",
393
safer_gnutls_strerror(ret));
387
if (ret != GNUTLS_E_SUCCESS) {
388
fprintf (stderr, "GnuTLS global_init: %s\n",
389
safer_gnutls_strerror(ret));
394
390
return -1;
395
391
}
396
392
397
if(debug){
393
if (debug){
398
394
/* "Use a log level over 10 to enable all debugging options."
399
395
* - GnuTLS manual
400
396
*/
404
400
405
401
/* OpenPGP credentials */
406
402
gnutls_certificate_allocate_credentials(&mc->cred);
407
if(ret != GNUTLS_E_SUCCESS){
408
fprintf(stderr, "GnuTLS memory error: %s\n", /* Spurious warning
409
* from
410
* -Wunreachable-code
411
*/
412
safer_gnutls_strerror(ret));
413
gnutls_global_deinit();
403
if (ret != GNUTLS_E_SUCCESS){
404
fprintf (stderr, "GnuTLS memory error: %s\n", /* Spurious
405
warning */
406
safer_gnutls_strerror(ret));
407
gnutls_global_deinit ();
414
408
return -1;
415
409
}
416
410
423
417
ret = gnutls_certificate_set_openpgp_key_file
424
418
(mc->cred, pubkeyfilename, seckeyfilename,
425
419
GNUTLS_OPENPGP_FMT_BASE64);
426
if(ret != GNUTLS_E_SUCCESS) {
420
if (ret != GNUTLS_E_SUCCESS) {
427
421
fprintf(stderr,
428
422
"Error[%d] while reading the OpenPGP key pair ('%s',"
429
423
" '%s')\n", ret, pubkeyfilename, seckeyfilename);
434
428
435
429
/* GnuTLS server initialization */
436
430
ret = gnutls_dh_params_init(&mc->dh_params);
437
if(ret != GNUTLS_E_SUCCESS) {
438
fprintf(stderr, "Error in GnuTLS DH parameter initialization:"
439
" %s\n", safer_gnutls_strerror(ret));
431
if (ret != GNUTLS_E_SUCCESS) {
432
fprintf (stderr, "Error in GnuTLS DH parameter initialization:"
433
" %s\n", safer_gnutls_strerror(ret));
440
434
goto globalfail;
441
435
}
442
436
ret = gnutls_dh_params_generate2(mc->dh_params, mc->dh_bits);
443
if(ret != GNUTLS_E_SUCCESS) {
444
fprintf(stderr, "Error in GnuTLS prime generation: %s\n",
445
safer_gnutls_strerror(ret));
437
if (ret != GNUTLS_E_SUCCESS) {
438
fprintf (stderr, "Error in GnuTLS prime generation: %s\n",
439
safer_gnutls_strerror(ret));
446
440
goto globalfail;
447
441
}
448
442
463
457
int ret;
464
458
/* GnuTLS session creation */
465
459
ret = gnutls_init(session, GNUTLS_SERVER);
466
if(ret != GNUTLS_E_SUCCESS){
460
if (ret != GNUTLS_E_SUCCESS){
467
461
fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
468
462
safer_gnutls_strerror(ret));
469
463
}
471
465
{
472
466
const char *err;
473
467
ret = gnutls_priority_set_direct(*session, mc->priority, &err);
474
if(ret != GNUTLS_E_SUCCESS) {
468
if (ret != GNUTLS_E_SUCCESS) {
475
469
fprintf(stderr, "Syntax error at: %s\n", err);
476
470
fprintf(stderr, "GnuTLS error: %s\n",
477
471
safer_gnutls_strerror(ret));
478
gnutls_deinit(*session);
472
gnutls_deinit (*session);
479
473
return -1;
480
474
}
481
475
}
482
476
483
477
ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
484
478
mc->cred);
485
if(ret != GNUTLS_E_SUCCESS) {
479
if (ret != GNUTLS_E_SUCCESS) {
486
480
fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
487
481
safer_gnutls_strerror(ret));
488
gnutls_deinit(*session);
482
gnutls_deinit (*session);
489
483
return -1;
490
484
}
491
485
492
486
/* ignore client certificate if any. */
493
gnutls_certificate_server_set_request(*session,
494
GNUTLS_CERT_IGNORE);
487
gnutls_certificate_server_set_request (*session,
488
GNUTLS_CERT_IGNORE);
495
489
496
gnutls_dh_set_prime_bits(*session, mc->dh_bits);
490
gnutls_dh_set_prime_bits (*session, mc->dh_bits);
497
491
498
492
return 0;
499
493
}
507
501
AvahiIfIndex if_index,
508
502
mandos_context *mc){
509
503
int ret, tcp_sd;
510
ssize_t sret;
511
504
union { struct sockaddr in; struct sockaddr_in6 in6; } to;
512
505
char *buffer = NULL;
513
506
char *decrypted_buffer;
519
512
char interface[IF_NAMESIZE];
520
513
gnutls_session_t session;
521
514
522
ret = init_gnutls_session(mc, &session);
523
if(ret != 0){
515
ret = init_gnutls_session (mc, &session);
516
if (ret != 0){
524
517
return -1;
525
518
}
526
519
548
541
/* It would be nice to have a way to detect if we were passed an
549
542
IPv4 address here. Now we assume an IPv6 address. */
550
543
ret = inet_pton(AF_INET6, ip, &to.in6.sin6_addr);
551
if(ret < 0 ){
544
if (ret < 0 ){
552
545
perror("inet_pton");
553
546
return -1;
554
547
}
556
549
fprintf(stderr, "Bad address: %s\n", ip);
557
550
return -1;
558
551
}
559
to.in6.sin6_port = htons(port); /* Spurious warnings from
560
-Wconversion and
561
-Wunreachable-code */
552
to.in6.sin6_port = htons(port); /* Spurious warning */
562
553
563
554
to.in6.sin6_scope_id = (uint32_t)if_index;
564
555
577
568
}
578
569
579
570
ret = connect(tcp_sd, &to.in, sizeof(to));
580
if(ret < 0){
571
if (ret < 0){
581
572
perror("connect");
582
573
return -1;
583
574
}
584
575
585
576
const char *out = mandos_protocol_version;
586
577
written = 0;
587
while(true){
578
while (true){
588
579
size_t out_size = strlen(out);
589
ret = (int)TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
580
ret = TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
590
581
out_size - written));
591
if(ret == -1){
582
if (ret == -1){
592
583
perror("write");
593
584
retval = -1;
594
585
goto mandos_end;
597
588
if(written < out_size){
598
589
continue;
599
590
} else {
600
if(out == mandos_protocol_version){
591
if (out == mandos_protocol_version){
601
592
written = 0;
602
593
out = "\r\n";
603
594
} else {
610
601
fprintf(stderr, "Establishing TLS session with %s\n", ip);
611
602
}
612
603
613
gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t) tcp_sd);
604
gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) tcp_sd);
614
605
615
606
do{
616
ret = gnutls_handshake(session);
607
ret = gnutls_handshake (session);
617
608
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
618
609
619
if(ret != GNUTLS_E_SUCCESS){
610
if (ret != GNUTLS_E_SUCCESS){
620
611
if(debug){
621
612
fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
622
gnutls_perror(ret);
613
gnutls_perror (ret);
623
614
}
624
615
retval = -1;
625
616
goto mandos_end;
635
626
while(true){
636
627
buffer_capacity = adjustbuffer(&buffer, buffer_length,
637
628
buffer_capacity);
638
if(buffer_capacity == 0){
629
if (buffer_capacity == 0){
639
630
perror("adjustbuffer");
640
631
retval = -1;
641
632
goto mandos_end;
642
633
}
643
634
644
sret = gnutls_record_recv(session, buffer+buffer_length,
645
BUFFER_SIZE);
646
if(sret == 0){
635
ret = gnutls_record_recv(session, buffer+buffer_length,
636
BUFFER_SIZE);
637
if (ret == 0){
647
638
break;
648
639
}
649
if(sret < 0){
650
switch(sret){
640
if (ret < 0){
641
switch(ret){
651
642
case GNUTLS_E_INTERRUPTED:
652
643
case GNUTLS_E_AGAIN:
653
644
break;
654
645
case GNUTLS_E_REHANDSHAKE:
655
646
do{
656
ret = gnutls_handshake(session);
647
ret = gnutls_handshake (session);
657
648
} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
658
if(ret < 0){
649
if (ret < 0){
659
650
fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
660
gnutls_perror(ret);
651
gnutls_perror (ret);
661
652
retval = -1;
662
653
goto mandos_end;
663
654
}
666
657
fprintf(stderr, "Unknown error while reading data from"
667
658
" encrypted session with Mandos server\n");
668
659
retval = -1;
669
gnutls_bye(session, GNUTLS_SHUT_RDWR);
660
gnutls_bye (session, GNUTLS_SHUT_RDWR);
670
661
goto mandos_end;
671
662
}
672
663
} else {
673
buffer_length += (size_t) sret;
664
buffer_length += (size_t) ret;
674
665
}
675
666
}
676
667
678
669
fprintf(stderr, "Closing TLS session\n");
679
670
}
680
671
681
gnutls_bye(session, GNUTLS_SHUT_RDWR);
672
gnutls_bye (session, GNUTLS_SHUT_RDWR);
682
673
683
if(buffer_length > 0){
674
if (buffer_length > 0){
684
675
decrypted_buffer_size = pgp_packet_decrypt(mc, buffer,
685
676
buffer_length,
686
677
&decrypted_buffer);
687
if(decrypted_buffer_size >= 0){
678
if (decrypted_buffer_size >= 0){
688
679
written = 0;
689
680
while(written < (size_t) decrypted_buffer_size){
690
ret = (int)fwrite(decrypted_buffer + written, 1,
691
(size_t)decrypted_buffer_size - written,
692
stdout);
681
ret = (int)fwrite (decrypted_buffer + written, 1,
682
(size_t)decrypted_buffer_size - written,
683
stdout);
693
684
if(ret == 0 and ferror(stdout)){
694
685
if(debug){
695
686
fprintf(stderr, "Error writing encrypted data: %s\n",
712
703
713
704
mandos_end:
714
705
free(buffer);
715
ret = (int)TEMP_FAILURE_RETRY(close(tcp_sd));
706
ret = TEMP_FAILURE_RETRY(close(tcp_sd));
716
707
if(ret == -1){
717
708
perror("close");
718
709
}
719
gnutls_deinit(session);
710
gnutls_deinit (session);
720
711
return retval;
721
712
}
722
713
740
731
/* Called whenever a service has been resolved successfully or
741
732
timed out */
742
733
743
switch(event) {
734
switch (event) {
744
735
default:
745
736
case AVAHI_RESOLVER_FAILURE:
746
737
fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
754
745
avahi_address_snprint(ip, sizeof(ip), address);
755
746
if(debug){
756
747
fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
757
PRIdMAX ") on port %" PRIu16 "\n", name, host_name,
758
ip, (intmax_t)interface, port);
748
PRIu16 ") on port %d\n", name, host_name, ip,
749
interface, port);
759
750
}
760
751
int ret = start_mandos_communication(ip, port, interface, mc);
761
if(ret == 0){
752
if (ret == 0){
762
753
avahi_simple_poll_quit(mc->simple_poll);
763
754
}
764
755
}
782
773
/* Called whenever a new services becomes available on the LAN or
783
774
is removed from the LAN */
784
775
785
switch(event) {
776
switch (event) {
786
777
default:
787
778
case AVAHI_BROWSER_FAILURE:
788
779
797
788
the callback function is called the Avahi server will free the
798
789
resolver for us. */
799
790
800
if(!(avahi_s_service_resolver_new(mc->server, interface,
791
if (!(avahi_s_service_resolver_new(mc->server, interface,
801
792
protocol, name, type, domain,
802
793
AVAHI_PROTO_INET6, 0,
803
794
resolve_callback, mc)))
821
812
AvahiSServiceBrowser *sb = NULL;
822
813
int error;
823
814
int ret;
824
intmax_t tmpmax;
825
int numchars;
826
815
int exitcode = EXIT_SUCCESS;
827
816
const char *interface = "eth0";
828
817
struct ifreq network;
874
863
{ .name = NULL }
875
864
};
876
865
877
error_t parse_opt(int key, char *arg,
878
struct argp_state *state) {
879
switch(key) {
866
error_t parse_opt (int key, char *arg,
867
struct argp_state *state) {
868
/* Get the INPUT argument from `argp_parse', which we know is
869
a pointer to our plugin list pointer. */
870
switch (key) {
880
871
case 128: /* --debug */
881
872
debug = true;
882
873
break;
893
884
pubkey = arg;
894
885
break;
895
886
case 129: /* --dh-bits */
896
ret = sscanf(arg, "%" SCNdMAX "%n", &tmpmax, &numchars);
897
if(ret < 1 or tmpmax != (typeof(mc.dh_bits))tmpmax
898
or arg[numchars] != '\0'){
899
fprintf(stderr, "Bad number of DH bits\n");
887
errno = 0;
888
mc.dh_bits = (unsigned int) strtol(arg, NULL, 10);
889
if (errno){
890
perror("strtol");
900
891
exit(EXIT_FAILURE);
901
892
}
902
mc.dh_bits = (typeof(mc.dh_bits))tmpmax;
903
893
break;
904
894
case 130: /* --priority */
905
895
mc.priority = arg;
906
896
break;
907
897
case ARGP_KEY_ARG:
908
argp_usage(state);
898
argp_usage (state);
909
899
case ARGP_KEY_END:
910
900
break;
911
901
default:
918
908
.args_doc = "",
919
909
.doc = "Mandos client -- Get and decrypt"
920
910
" passwords from a Mandos server" };
921
ret = argp_parse(&argp, argc, argv, 0, 0, NULL);
922
if(ret == ARGP_ERR_UNKNOWN){
911
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
912
if (ret == ARGP_ERR_UNKNOWN){
923
913
fprintf(stderr, "Unknown error while parsing arguments\n");
924
914
exitcode = EXIT_FAILURE;
925
915
goto end;
950
940
goto end;
951
941
}
952
942
}
953
ret = (int)TEMP_FAILURE_RETRY(close(sd));
943
ret = TEMP_FAILURE_RETRY(close(sd));
954
944
if(ret == -1){
955
945
perror("close");
956
946
}
960
950
gid = getgid();
961
951
962
952
ret = setuid(uid);
963
if(ret == -1){
953
if (ret == -1){
964
954
perror("setuid");
965
955
}
966
956
967
957
setgid(gid);
968
if(ret == -1){
958
if (ret == -1){
969
959
perror("setgid");
970
960
}
971
961
972
962
ret = init_gnutls_global(&mc, pubkey, seckey);
973
if(ret == -1){
963
if (ret == -1){
974
964
fprintf(stderr, "init_gnutls_global failed\n");
975
965
exitcode = EXIT_FAILURE;
976
966
goto end;
1007
997
exitcode = EXIT_FAILURE;
1008
998
goto end;
1009
999
}
1010
uint16_t port;
1011
ret = sscanf(address+1, "%" SCNdMAX "%n", &tmpmax, &numchars);
1012
if(ret < 1 or tmpmax != (uint16_t)tmpmax
1013
or address[numchars+1] != '\0'){
1014
fprintf(stderr, "Bad port number\n");
1000
errno = 0;
1001
uint16_t port = (uint16_t) strtol(address+1, NULL, 10);
1002
if(errno){
1003
perror("Bad port number");
1015
1004
exitcode = EXIT_FAILURE;
1016
1005
goto end;
1017
1006
}
1018
port = (uint16_t)tmpmax;
1019
1007
*address = '\0';
1020
1008
address = connect_to;
1021
1009
ret = start_mandos_communication(address, port, if_index, &mc);
1027
1015
goto end;
1028
1016
}
1029
1017
1030
if(not debug){
1018
if (not debug){
1031
1019
avahi_set_log_function(empty_log);
1032
1020
}
1033
1021
1036
1024
1037
1025
/* Allocate main Avahi loop object */
1038
1026
mc.simple_poll = avahi_simple_poll_new();
1039
if(mc.simple_poll == NULL) {
1027
if (mc.simple_poll == NULL) {
1040
1028
fprintf(stderr, "Avahi: Failed to create simple poll"
1041
1029
" object.\n");
1042
1030
exitcode = EXIT_FAILURE;
1062
1050
}
1063
1051
1064
1052
/* Check if creating the Avahi server object succeeded */
1065
if(mc.server == NULL) {
1053
if (mc.server == NULL) {
1066
1054
fprintf(stderr, "Failed to create Avahi server: %s\n",
1067
1055
avahi_strerror(error));
1068
1056
exitcode = EXIT_FAILURE;
1074
1062
AVAHI_PROTO_INET6,
1075
1063
"_mandos._tcp", NULL, 0,
1076
1064
browse_callback, &mc);
1077
if(sb == NULL) {
1065
if (sb == NULL) {
1078
1066
fprintf(stderr, "Failed to create service browser: %s\n",
1079
1067
avahi_strerror(avahi_server_errno(mc.server)));
1080
1068
exitcode = EXIT_FAILURE;
1083
1071
1084
1072
/* Run the main loop */
1085
1073
1086
if(debug){
1074
if (debug){
1087
1075
fprintf(stderr, "Starting Avahi loop search\n");
1088
1076
}
1089
1077
1091
1079
1092
1080
end:
1093
1081
1094
if(debug){
1082
if (debug){
1095
1083
fprintf(stderr, "%s exiting\n", argv[0]);
1096
1084
}
1097
1085
1098
1086
/* Cleanup things */
1099
if(sb != NULL)
1087
if (sb != NULL)
1100
1088
avahi_s_service_browser_free(sb);
1101
1089
1102
if(mc.server != NULL)
1090
if (mc.server != NULL)
1103
1091
avahi_server_free(mc.server);
1104
1092
1105
if(mc.simple_poll != NULL)
1093
if (mc.simple_poll != NULL)
1106
1094
avahi_simple_poll_free(mc.simple_poll);
1107
1095
1108
if(gnutls_initalized){
1096
if (gnutls_initalized){
1109
1097
gnutls_certificate_free_credentials(mc.cred);
1110
gnutls_global_deinit();
1098
gnutls_global_deinit ();
1111
1099
gnutls_dh_params_deinit(mc.dh_params);
1112
1100
}
1113
1101
1121
1109
struct dirent *direntry;
1122
1110
d = opendir(tempdir);
1123
1111
if(d == NULL){
1124
if(errno != ENOENT){
1125
perror("opendir");
1126
}
1112
perror("opendir");
1127
1113
} else {
1128
1114
while(true){
1129
1115
direntry = readdir(d);
1130
1116
if(direntry == NULL){
1131
1117
break;
1132
1118
}
1133
if(direntry->d_type == DT_REG){
1119
if (direntry->d_type == DT_REG){
1134
1120
char *fullname = NULL;
1135
1121
ret = asprintf(&fullname, "%s/%s", tempdir,
1136
1122
direntry->d_name);
1149
1135
closedir(d);
1150
1136
}
1151
1137
ret = rmdir(tempdir);
1152
if(ret == -1 and errno != ENOENT){
1138
if(ret == -1){
1153
1139
perror("rmdir");
1154
1140
}
1155
1141
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0