/mandos/release

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/release
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
1
/*  -*- coding: utf-8 -*- */
2
/*
237.2.24 by Teddy Hogeborn
* plugins.d/askpass-fifo.c: Fix name in header.
3
 * Mandos-client - get and decrypt data from a Mandos server
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
4
 *
5
 * This program is partly derived from an example program for an Avahi
6
 * service browser, downloaded from
7
 * <http://avahi.org/browser/examples/core-browse-services.c>.  This
8
 * includes the following functions: "resolve_callback",
9
 * "browse_callback", and parts of "main".
10
 * 
28 by Teddy Hogeborn
* server.conf: New file.
11
 * Everything else is
237.2.9 by Teddy Hogeborn
* README: Update copyright year; add "2009".
12
 * Copyright © 2008,2009 Teddy Hogeborn
13
 * Copyright © 2008,2009 Björn Påhlsson
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
14
 * 
15
 * This program is free software: you can redistribute it and/or
16
 * modify it under the terms of the GNU General Public License as
17
 * published by the Free Software Foundation, either version 3 of the
18
 * License, or (at your option) any later version.
19
 * 
20
 * This program is distributed in the hope that it will be useful, but
21
 * WITHOUT ANY WARRANTY; without even the implied warranty of
22
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
23
 * General Public License for more details.
24
 * 
25
 * You should have received a copy of the GNU General Public License
26
 * along with this program.  If not, see
27
 * <http://www.gnu.org/licenses/>.
28
 * 
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
29
 * Contact the authors at <mandos@fukt.bsnet.se>.
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
30
 */
31
28 by Teddy Hogeborn
* server.conf: New file.
32
/* Needed by GPGME, specifically gpgme_data_seek() */
13 by Björn Påhlsson
Added following support:
33
#define _LARGEFILE_SOURCE
34
#define _FILE_OFFSET_BITS 64
35
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
36
#define _GNU_SOURCE		/* TEMP_FAILURE_RETRY(), asprintf() */
24.1.10 by Björn Påhlsson
merge commit
37
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
38
#include <stdio.h>		/* fprintf(), stderr, fwrite(),
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
39
				   stdout, ferror(), remove() */
24.1.26 by Björn Påhlsson
tally count of used symbols
40
#include <stdint.h> 		/* uint16_t, uint32_t */
41
#include <stddef.h>		/* NULL, size_t, ssize_t */
24.1.29 by Björn Påhlsson
Added more header file comments
42
#include <stdlib.h> 		/* free(), EXIT_SUCCESS, EXIT_FAILURE,
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
43
				   srand(), strtof() */
237.2.67 by Teddy Hogeborn
Four new interrelated features:
44
#include <stdbool.h>		/* bool, false, true */
24.1.29 by Björn Påhlsson
Added more header file comments
45
#include <string.h>		/* memset(), strcmp(), strlen(),
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
46
				   strerror(), asprintf(), strcpy() */
237.2.67 by Teddy Hogeborn
Four new interrelated features:
47
#include <sys/ioctl.h>		/* ioctl */
24.1.26 by Björn Påhlsson
tally count of used symbols
48
#include <sys/types.h>		/* socket(), inet_pton(), sockaddr,
24.1.29 by Björn Påhlsson
Added more header file comments
49
				   sockaddr_in6, PF_INET6,
237.2.67 by Teddy Hogeborn
Four new interrelated features:
50
				   SOCK_STREAM, uid_t, gid_t, open(),
51
				   opendir(), DIR */
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
52
#include <sys/stat.h>		/* open() */
24.1.26 by Björn Påhlsson
tally count of used symbols
53
#include <sys/socket.h>		/* socket(), struct sockaddr_in6,
237.2.67 by Teddy Hogeborn
Four new interrelated features:
54
				   inet_pton(), connect() */
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
55
#include <fcntl.h>		/* open() */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
56
#include <dirent.h>		/* opendir(), struct dirent, readdir()
57
				 */
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
58
#include <inttypes.h>		/* PRIu16, PRIdMAX, intmax_t,
59
				   strtoimax() */
24.1.29 by Björn Påhlsson
Added more header file comments
60
#include <assert.h>		/* assert() */
61
#include <errno.h>		/* perror(), errno */
237.2.54 by Teddy Hogeborn
Merge from Björn:
62
#include <time.h>		/* nanosleep(), time() */
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
63
#include <net/if.h>		/* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
24.1.26 by Björn Påhlsson
tally count of used symbols
64
				   SIOCSIFFLAGS, if_indextoname(),
65
				   if_nametoindex(), IF_NAMESIZE */
237.2.67 by Teddy Hogeborn
Four new interrelated features:
66
#include <netinet/in.h>		/* IN6_IS_ADDR_LINKLOCAL,
67
				   INET_ADDRSTRLEN, INET6_ADDRSTRLEN
68
				*/
24.1.29 by Björn Påhlsson
Added more header file comments
69
#include <unistd.h>		/* close(), SEEK_SET, off_t, write(),
70
				   getuid(), getgid(), setuid(),
71
				   setgid() */
24.1.26 by Björn Påhlsson
tally count of used symbols
72
#include <arpa/inet.h>		/* inet_pton(), htons */
237.2.67 by Teddy Hogeborn
Four new interrelated features:
73
#include <iso646.h>		/* not, or, and */
24.1.29 by Björn Påhlsson
Added more header file comments
74
#include <argp.h>		/* struct argp_option, error_t, struct
75
				   argp_state, struct argp,
76
				   argp_parse(), ARGP_KEY_ARG,
77
				   ARGP_KEY_END, ARGP_ERR_UNKNOWN */
237.2.70 by Teddy Hogeborn
Merge from Björn:
78
#include <signal.h>		/* sigemptyset(), sigaddset(),
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
79
				   sigaction(), SIGTERM, sigaction,
80
				   sig_atomic_t */
237.2.70 by Teddy Hogeborn
Merge from Björn:
81
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
82
#ifdef __linux__
24.1.124 by Björn Påhlsson
Added lower kernel loglevel to reduce clutter on system console.
83
#include <sys/klog.h> 		/* klogctl() */
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
84
#endif	/* __linux__ */
24.1.26 by Björn Påhlsson
tally count of used symbols
85
86
/* Avahi */
24.1.29 by Björn Påhlsson
Added more header file comments
87
/* All Avahi types, constants and functions
88
 Avahi*, avahi_*,
89
 AVAHI_* */
90
#include <avahi-core/core.h>
24.1.26 by Björn Påhlsson
tally count of used symbols
91
#include <avahi-core/lookup.h>
24.1.29 by Björn Påhlsson
Added more header file comments
92
#include <avahi-core/log.h>
24.1.26 by Björn Påhlsson
tally count of used symbols
93
#include <avahi-common/simple-watch.h>
94
#include <avahi-common/malloc.h>
95
#include <avahi-common/error.h>
96
97
/* GnuTLS */
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
98
#include <gnutls/gnutls.h>	/* All GnuTLS types, constants and
99
				   functions:
24.1.29 by Björn Påhlsson
Added more header file comments
100
				   gnutls_*
24.1.26 by Björn Påhlsson
tally count of used symbols
101
				   init_gnutls_session(),
24.1.29 by Björn Påhlsson
Added more header file comments
102
				   GNUTLS_* */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
103
#include <gnutls/openpgp.h>
104
			  /* gnutls_certificate_set_openpgp_key_file(),
24.1.29 by Björn Påhlsson
Added more header file comments
105
				   GNUTLS_OPENPGP_FMT_BASE64 */
24.1.26 by Björn Påhlsson
tally count of used symbols
106
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
107
/* GPGME */
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
108
#include <gpgme.h> 		/* All GPGME types, constants and
109
				   functions:
24.1.29 by Björn Påhlsson
Added more header file comments
110
				   gpgme_*
24.1.26 by Björn Påhlsson
tally count of used symbols
111
				   GPGME_PROTOCOL_OpenPGP,
24.1.29 by Björn Påhlsson
Added more header file comments
112
				   GPG_ERR_NO_* */
13 by Björn Påhlsson
Added following support:
113
114
#define BUFFER_SIZE 256
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
115
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
116
#define PATHDIR "/conf/conf.d/mandos"
117
#define SECKEY "seckey.txt"
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
118
#define PUBKEY "pubkey.txt"
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
119
15.1.2 by Björn Påhlsson
Added debug options from passprompt as --debug and --debug=passprompt
120
bool debug = false;
43 by Teddy Hogeborn
* plugins.d/mandosclient.c: Cosmetic changes.
121
static const char mandos_protocol_version[] = "1";
217 by Teddy Hogeborn
* .bzrignore: Added "man" directory (created by "make install-html").
122
const char *argp_program_version = "mandos-client " VERSION;
24.1.14 by Björn Påhlsson
mandosclient
123
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
24.1.10 by Björn Påhlsson
merge commit
124
42 by Teddy Hogeborn
* plugins.d/mandosclient.c (start_mandos_communication): Change "to"
125
/* Used for passing in values through the Avahi callback functions */
13 by Björn Påhlsson
Added following support:
126
typedef struct {
24.1.9 by Björn Påhlsson
not working midwork...
127
  AvahiSimplePoll *simple_poll;
128
  AvahiServer *server;
13 by Björn Påhlsson
Added following support:
129
  gnutls_certificate_credentials_t cred;
24.1.9 by Björn Påhlsson
not working midwork...
130
  unsigned int dh_bits;
24.1.13 by Björn Påhlsson
mandosclient
131
  gnutls_dh_params_t dh_params;
24.1.9 by Björn Påhlsson
not working midwork...
132
  const char *priority;
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
133
  gpgme_ctx_t ctx;
24.1.9 by Björn Påhlsson
not working midwork...
134
} mandos_context;
13 by Björn Påhlsson
Added following support:
135
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
136
/* global context so signal handler can reach it*/
24.1.135 by Björn Påhlsson
Earlier signal handling
137
mandos_context mc = { .simple_poll = NULL, .server = NULL,
138
		      .dh_bits = 1024, .priority = "SECURE256"
139
		      ":!CTYPE-X.509:+CTYPE-OPENPGP" };
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
140
43 by Teddy Hogeborn
* plugins.d/mandosclient.c: Cosmetic changes.
141
/*
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
142
 * Make additional room in "buffer" for at least BUFFER_SIZE more
143
 * bytes. "buffer_capacity" is how much is currently allocated,
144
 * "buffer_length" is how much is already used.
43 by Teddy Hogeborn
* plugins.d/mandosclient.c: Cosmetic changes.
145
 */
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
146
size_t incbuffer(char **buffer, size_t buffer_length,
24.1.10 by Björn Påhlsson
merge commit
147
		  size_t buffer_capacity){
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
148
  if(buffer_length + BUFFER_SIZE > buffer_capacity){
24.1.12 by Björn Påhlsson
merge +
149
    *buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
150
    if(buffer == NULL){
24.1.10 by Björn Påhlsson
merge commit
151
      return 0;
152
    }
153
    buffer_capacity += BUFFER_SIZE;
154
  }
155
  return buffer_capacity;
156
}
157
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
158
/* 
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
159
 * Initialize GPGME.
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
160
 */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
161
static bool init_gpgme(const char *seckey,
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
162
		       const char *pubkey, const char *tempdir){
163
  int ret;
13 by Björn Påhlsson
Added following support:
164
  gpgme_error_t rc;
165
  gpgme_engine_info_t engine_info;
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
166
  
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
167
  
168
  /*
237.2.51 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Use separate bool variable instead
169
   * Helper function to insert pub and seckey to the engine keyring.
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
170
   */
171
  bool import_key(const char *filename){
172
    int fd;
173
    gpgme_data_t pgp_data;
174
    
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
175
    fd = (int)TEMP_FAILURE_RETRY(open(filename, O_RDONLY));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
176
    if(fd == -1){
177
      perror("open");
178
      return false;
179
    }
180
    
181
    rc = gpgme_data_new_from_fd(&pgp_data, fd);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
182
    if(rc != GPG_ERR_NO_ERROR){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
183
      fprintf(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
184
	      gpgme_strsource(rc), gpgme_strerror(rc));
185
      return false;
186
    }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
187
    
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
188
    rc = gpgme_op_import(mc.ctx, pgp_data);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
189
    if(rc != GPG_ERR_NO_ERROR){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
190
      fprintf(stderr, "bad gpgme_op_import: %s: %s\n",
191
	      gpgme_strsource(rc), gpgme_strerror(rc));
192
      return false;
193
    }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
194
    
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
195
    ret = (int)TEMP_FAILURE_RETRY(close(fd));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
196
    if(ret == -1){
197
      perror("close");
198
    }
199
    gpgme_data_release(pgp_data);
200
    return true;
201
  }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
202
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
203
  if(debug){
237.2.70 by Teddy Hogeborn
Merge from Björn:
204
    fprintf(stderr, "Initializing GPGME\n");
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
205
  }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
206
  
13 by Björn Påhlsson
Added following support:
207
  /* Init GPGME */
208
  gpgme_check_version(NULL);
24.1.4 by Björn Påhlsson
Added optional parameters certdir, certkey and certfile that can be iven at start in the command line.
209
  rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
210
  if(rc != GPG_ERR_NO_ERROR){
24.1.4 by Björn Påhlsson
Added optional parameters certdir, certkey and certfile that can be iven at start in the command line.
211
    fprintf(stderr, "bad gpgme_engine_check_version: %s: %s\n",
212
	    gpgme_strsource(rc), gpgme_strerror(rc));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
213
    return false;
24.1.4 by Björn Påhlsson
Added optional parameters certdir, certkey and certfile that can be iven at start in the command line.
214
  }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
215
  
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
216
    /* Set GPGME home directory for the OpenPGP engine only */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
217
  rc = gpgme_get_engine_info(&engine_info);
218
  if(rc != GPG_ERR_NO_ERROR){
13 by Björn Påhlsson
Added following support:
219
    fprintf(stderr, "bad gpgme_get_engine_info: %s: %s\n",
220
	    gpgme_strsource(rc), gpgme_strerror(rc));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
221
    return false;
13 by Björn Påhlsson
Added following support:
222
  }
223
  while(engine_info != NULL){
224
    if(engine_info->protocol == GPGME_PROTOCOL_OpenPGP){
225
      gpgme_set_engine_info(GPGME_PROTOCOL_OpenPGP,
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
226
			    engine_info->file_name, tempdir);
13 by Björn Påhlsson
Added following support:
227
      break;
228
    }
229
    engine_info = engine_info->next;
230
  }
231
  if(engine_info == NULL){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
232
    fprintf(stderr, "Could not set GPGME home dir to %s\n", tempdir);
233
    return false;
234
  }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
235
  
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
236
  /* Create new GPGME "context" */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
237
  rc = gpgme_new(&(mc.ctx));
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
238
  if(rc != GPG_ERR_NO_ERROR){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
239
    fprintf(stderr, "bad gpgme_new: %s: %s\n",
240
	    gpgme_strsource(rc), gpgme_strerror(rc));
241
    return false;
242
  }
243
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
244
  if(not import_key(pubkey) or not import_key(seckey)){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
245
    return false;
246
  }
247
  
248
  return true; 
249
}
250
251
/* 
252
 * Decrypt OpenPGP data.
253
 * Returns -1 on error
254
 */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
255
static ssize_t pgp_packet_decrypt(const char *cryptotext,
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
256
				  size_t crypto_size,
257
				  char **plaintext){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
258
  gpgme_data_t dh_crypto, dh_plain;
259
  gpgme_error_t rc;
260
  ssize_t ret;
261
  size_t plaintext_capacity = 0;
262
  ssize_t plaintext_length = 0;
263
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
264
  if(debug){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
265
    fprintf(stderr, "Trying to decrypt OpenPGP data\n");
13 by Björn Påhlsson
Added following support:
266
  }
267
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
268
  /* Create new GPGME data buffer from memory cryptotext */
269
  rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
270
			       0);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
271
  if(rc != GPG_ERR_NO_ERROR){
13 by Björn Påhlsson
Added following support:
272
    fprintf(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
273
	    gpgme_strsource(rc), gpgme_strerror(rc));
274
    return -1;
275
  }
276
  
277
  /* Create new empty GPGME data buffer for the plaintext */
278
  rc = gpgme_data_new(&dh_plain);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
279
  if(rc != GPG_ERR_NO_ERROR){
13 by Björn Påhlsson
Added following support:
280
    fprintf(stderr, "bad gpgme_data_new: %s: %s\n",
281
	    gpgme_strsource(rc), gpgme_strerror(rc));
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
282
    gpgme_data_release(dh_crypto);
13 by Björn Påhlsson
Added following support:
283
    return -1;
284
  }
285
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
286
  /* Decrypt data from the cryptotext data buffer to the plaintext
287
     data buffer */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
288
  rc = gpgme_op_decrypt(mc.ctx, dh_crypto, dh_plain);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
289
  if(rc != GPG_ERR_NO_ERROR){
13 by Björn Påhlsson
Added following support:
290
    fprintf(stderr, "bad gpgme_op_decrypt: %s: %s\n",
291
	    gpgme_strsource(rc), gpgme_strerror(rc));
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
292
    plaintext_length = -1;
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
293
    if(debug){
99 by Teddy Hogeborn
* mandos (fingerprint): Bug fix: Check crtverify.value, not crtverify.
294
      gpgme_decrypt_result_t result;
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
295
      result = gpgme_op_decrypt_result(mc.ctx);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
296
      if(result == NULL){
99 by Teddy Hogeborn
* mandos (fingerprint): Bug fix: Check crtverify.value, not crtverify.
297
	fprintf(stderr, "gpgme_op_decrypt_result failed\n");
298
      } else {
299
	fprintf(stderr, "Unsupported algorithm: %s\n",
300
		result->unsupported_algorithm);
301
	fprintf(stderr, "Wrong key usage: %u\n",
302
		result->wrong_key_usage);
303
	if(result->file_name != NULL){
304
	  fprintf(stderr, "File name: %s\n", result->file_name);
305
	}
306
	gpgme_recipient_t recipient;
307
	recipient = result->recipients;
308
	if(recipient){
309
	  while(recipient != NULL){
310
	    fprintf(stderr, "Public key algorithm: %s\n",
311
		    gpgme_pubkey_algo_name(recipient->pubkey_algo));
312
	    fprintf(stderr, "Key ID: %s\n", recipient->keyid);
313
	    fprintf(stderr, "Secret key available: %s\n",
314
		    recipient->status == GPG_ERR_NO_SECKEY
315
		    ? "No" : "Yes");
316
	    recipient = recipient->next;
317
	  }
318
	}
319
      }
320
    }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
321
    goto decrypt_end;
13 by Björn Påhlsson
Added following support:
322
  }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
323
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
324
  if(debug){
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
325
    fprintf(stderr, "Decryption of OpenPGP data succeeded\n");
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
326
  }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
327
  
13 by Björn Påhlsson
Added following support:
328
  /* Seek back to the beginning of the GPGME plaintext data buffer */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
329
  if(gpgme_data_seek(dh_plain, (off_t)0, SEEK_SET) == -1){
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
330
    perror("gpgme_data_seek");
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
331
    plaintext_length = -1;
332
    goto decrypt_end;
24.1.5 by Björn Påhlsson
plugbasedclient:
333
  }
334
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
335
  *plaintext = NULL;
13 by Björn Påhlsson
Added following support:
336
  while(true){
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
337
    plaintext_capacity = incbuffer(plaintext,
42 by Teddy Hogeborn
* plugins.d/mandosclient.c (start_mandos_communication): Change "to"
338
				      (size_t)plaintext_length,
24.1.12 by Björn Påhlsson
merge +
339
				      plaintext_capacity);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
340
    if(plaintext_capacity == 0){
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
341
	perror("incbuffer");
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
342
	plaintext_length = -1;
343
	goto decrypt_end;
13 by Björn Påhlsson
Added following support:
344
    }
345
    
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
346
    ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
347
			  BUFFER_SIZE);
13 by Björn Påhlsson
Added following support:
348
    /* Print the data, if any */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
349
    if(ret == 0){
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
350
      /* EOF */
13 by Björn Påhlsson
Added following support:
351
      break;
352
    }
353
    if(ret < 0){
354
      perror("gpgme_data_read");
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
355
      plaintext_length = -1;
356
      goto decrypt_end;
13 by Björn Påhlsson
Added following support:
357
    }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
358
    plaintext_length += ret;
13 by Björn Påhlsson
Added following support:
359
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
360
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
361
  if(debug){
362
    fprintf(stderr, "Decrypted password is: ");
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
363
    for(ssize_t i = 0; i < plaintext_length; i++){
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
364
      fprintf(stderr, "%02hhX ", (*plaintext)[i]);
365
    }
366
    fprintf(stderr, "\n");
367
  }
368
  
369
 decrypt_end:
370
  
371
  /* Delete the GPGME cryptotext data buffer */
372
  gpgme_data_release(dh_crypto);
15.1.3 by Björn Påhlsson
Added getopt_long support for mandosclient and passprompt
373
  
374
  /* Delete the GPGME plaintext data buffer */
13 by Björn Påhlsson
Added following support:
375
  gpgme_data_release(dh_plain);
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
376
  return plaintext_length;
13 by Björn Påhlsson
Added following support:
377
}
378
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
379
static const char * safer_gnutls_strerror(int value){
237.2.30 by Teddy Hogeborn
* plugins.d/mandos-client.c: Only comment changes.
380
  const char *ret = gnutls_strerror(value); /* Spurious warning from
381
					       -Wunreachable-code */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
382
  if(ret == NULL)
13 by Björn Påhlsson
Added following support:
383
    ret = "(unknown)";
384
  return ret;
385
}
386
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
387
/* GnuTLS log function callback */
36 by Teddy Hogeborn
* TODO: Converted to org-mode style
388
static void debuggnutls(__attribute__((unused)) int level,
389
			const char* string){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
390
  fprintf(stderr, "GnuTLS: %s", string);
13 by Björn Påhlsson
Added following support:
391
}
392
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
393
static int init_gnutls_global(const char *pubkeyfilename,
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
394
			      const char *seckeyfilename){
13 by Björn Påhlsson
Added following support:
395
  int ret;
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
396
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
397
  if(debug){
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
398
    fprintf(stderr, "Initializing GnuTLS\n");
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
399
  }
24.1.29 by Björn Påhlsson
Added more header file comments
400
  
401
  ret = gnutls_global_init();
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
402
  if(ret != GNUTLS_E_SUCCESS){
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
403
    fprintf(stderr, "GnuTLS global_init: %s\n",
404
	    safer_gnutls_strerror(ret));
13 by Björn Påhlsson
Added following support:
405
    return -1;
406
  }
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
407
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
408
  if(debug){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
409
    /* "Use a log level over 10 to enable all debugging options."
410
     * - GnuTLS manual
411
     */
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
412
    gnutls_global_set_log_level(11);
413
    gnutls_global_set_log_function(debuggnutls);
414
  }
415
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
416
  /* OpenPGP credentials */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
417
  gnutls_certificate_allocate_credentials(&mc.cred);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
418
  if(ret != GNUTLS_E_SUCCESS){
237.2.30 by Teddy Hogeborn
* plugins.d/mandos-client.c: Only comment changes.
419
    fprintf(stderr, "GnuTLS memory error: %s\n", /* Spurious warning
237.2.67 by Teddy Hogeborn
Four new interrelated features:
420
						    from
421
						    -Wunreachable-code
422
						 */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
423
	    safer_gnutls_strerror(ret));
424
    gnutls_global_deinit();
13 by Björn Påhlsson
Added following support:
425
    return -1;
426
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
427
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
428
  if(debug){
147 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Improved wording
429
    fprintf(stderr, "Attempting to use OpenPGP public key %s and"
430
	    " secret key %s as GnuTLS credentials\n", pubkeyfilename,
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
431
	    seckeyfilename);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
432
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
433
  
13 by Björn Påhlsson
Added following support:
434
  ret = gnutls_certificate_set_openpgp_key_file
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
435
    (mc.cred, pubkeyfilename, seckeyfilename,
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
436
     GNUTLS_OPENPGP_FMT_BASE64);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
437
  if(ret != GNUTLS_E_SUCCESS){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
438
    fprintf(stderr,
439
	    "Error[%d] while reading the OpenPGP key pair ('%s',"
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
440
	    " '%s')\n", ret, pubkeyfilename, seckeyfilename);
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
441
    fprintf(stderr, "The GnuTLS error is: %s\n",
13 by Björn Påhlsson
Added following support:
442
	    safer_gnutls_strerror(ret));
24.1.20 by Björn Påhlsson
mandosclient
443
    goto globalfail;
13 by Björn Påhlsson
Added following support:
444
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
445
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
446
  /* GnuTLS server initialization */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
447
  ret = gnutls_dh_params_init(&mc.dh_params);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
448
  if(ret != GNUTLS_E_SUCCESS){
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
449
    fprintf(stderr, "Error in GnuTLS DH parameter initialization:"
450
	    " %s\n", safer_gnutls_strerror(ret));
24.1.20 by Björn Påhlsson
mandosclient
451
    goto globalfail;
13 by Björn Påhlsson
Added following support:
452
  }
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
453
  ret = gnutls_dh_params_generate2(mc.dh_params, mc.dh_bits);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
454
  if(ret != GNUTLS_E_SUCCESS){
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
455
    fprintf(stderr, "Error in GnuTLS prime generation: %s\n",
456
	    safer_gnutls_strerror(ret));
24.1.20 by Björn Påhlsson
mandosclient
457
    goto globalfail;
13 by Björn Påhlsson
Added following support:
458
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
459
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
460
  gnutls_certificate_set_dh_params(mc.cred, mc.dh_params);
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
461
  
24.1.13 by Björn Påhlsson
mandosclient
462
  return 0;
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
463
  
24.1.20 by Björn Påhlsson
mandosclient
464
 globalfail:
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
465
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
466
  gnutls_certificate_free_credentials(mc.cred);
24.1.26 by Björn Påhlsson
tally count of used symbols
467
  gnutls_global_deinit();
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
468
  gnutls_dh_params_deinit(mc.dh_params);
24.1.20 by Björn Påhlsson
mandosclient
469
  return -1;
24.1.13 by Björn Påhlsson
mandosclient
470
}
471
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
472
static int init_gnutls_session(gnutls_session_t *session){
24.1.13 by Björn Påhlsson
mandosclient
473
  int ret;
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
474
  /* GnuTLS session creation */
475
  ret = gnutls_init(session, GNUTLS_SERVER);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
476
  if(ret != GNUTLS_E_SUCCESS){
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
477
    fprintf(stderr, "Error in GnuTLS session initialization: %s\n",
13 by Björn Påhlsson
Added following support:
478
	    safer_gnutls_strerror(ret));
479
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
480
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
481
  {
482
    const char *err;
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
483
    ret = gnutls_priority_set_direct(*session, mc.priority, &err);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
484
    if(ret != GNUTLS_E_SUCCESS){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
485
      fprintf(stderr, "Syntax error at: %s\n", err);
486
      fprintf(stderr, "GnuTLS error: %s\n",
487
	      safer_gnutls_strerror(ret));
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
488
      gnutls_deinit(*session);
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
489
      return -1;
490
    }
13 by Björn Påhlsson
Added following support:
491
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
492
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
493
  ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
494
			       mc.cred);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
495
  if(ret != GNUTLS_E_SUCCESS){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
496
    fprintf(stderr, "Error setting GnuTLS credentials: %s\n",
13 by Björn Påhlsson
Added following support:
497
	    safer_gnutls_strerror(ret));
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
498
    gnutls_deinit(*session);
13 by Björn Påhlsson
Added following support:
499
    return -1;
500
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
501
  
13 by Björn Påhlsson
Added following support:
502
  /* ignore client certificate if any. */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
503
  gnutls_certificate_server_set_request(*session,
504
					GNUTLS_CERT_IGNORE);
13 by Björn Påhlsson
Added following support:
505
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
506
  gnutls_dh_set_prime_bits(*session, mc.dh_bits);
13 by Björn Påhlsson
Added following support:
507
  
508
  return 0;
509
}
510
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
511
/* Avahi log function callback */
36 by Teddy Hogeborn
* TODO: Converted to org-mode style
512
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
513
		      __attribute__((unused)) const char *txt){}
13 by Björn Påhlsson
Added following support:
514
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
515
/* Called when a Mandos server is found */
36 by Teddy Hogeborn
* TODO: Converted to org-mode style
516
static int start_mandos_communication(const char *ip, uint16_t port,
24.1.9 by Björn Påhlsson
not working midwork...
517
				      AvahiIfIndex if_index,
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
518
				      int af){
13 by Björn Påhlsson
Added following support:
519
  int ret, tcp_sd;
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
520
  ssize_t sret;
237.2.67 by Teddy Hogeborn
Four new interrelated features:
521
  union {
522
    struct sockaddr_in in;
523
    struct sockaddr_in6 in6;
524
  } to;
13 by Björn Påhlsson
Added following support:
525
  char *buffer = NULL;
526
  char *decrypted_buffer;
527
  size_t buffer_length = 0;
528
  size_t buffer_capacity = 0;
529
  ssize_t decrypted_buffer_size;
24.1.10 by Björn Påhlsson
merge commit
530
  size_t written;
13 by Björn Påhlsson
Added following support:
531
  int retval = 0;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
532
  gnutls_session_t session;
237.2.67 by Teddy Hogeborn
Four new interrelated features:
533
  int pf;			/* Protocol family */
534
  
535
  switch(af){
536
  case AF_INET6:
537
    pf = PF_INET6;
538
    break;
539
  case AF_INET:
540
    pf = PF_INET;
541
    break;
542
  default:
543
    fprintf(stderr, "Bad address family: %d\n", af);
544
    return -1;
545
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
546
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
547
  ret = init_gnutls_session(&session);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
548
  if(ret != 0){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
549
    return -1;
550
  }
551
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
552
  if(debug){
237.2.67 by Teddy Hogeborn
Four new interrelated features:
553
    fprintf(stderr, "Setting up a TCP connection to %s, port %" PRIu16
60 by Teddy Hogeborn
* mandos-client.c (main): Cast pid_t to unsigned int before printing.
554
	    "\n", ip, port);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
555
  }
13 by Björn Påhlsson
Added following support:
556
  
237.2.67 by Teddy Hogeborn
Four new interrelated features:
557
  tcp_sd = socket(pf, SOCK_STREAM, 0);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
558
  if(tcp_sd < 0){
13 by Björn Påhlsson
Added following support:
559
    perror("socket");
560
    return -1;
561
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
562
  
84 by Teddy Hogeborn
* Makefile (DOCBOOKTOMAN): Use the local manpages/docbook.xsl file, do
563
  memset(&to, 0, sizeof(to));
237.2.67 by Teddy Hogeborn
Four new interrelated features:
564
  if(af == AF_INET6){
565
    to.in6.sin6_family = (uint16_t)af;
566
    ret = inet_pton(af, ip, &to.in6.sin6_addr);
567
  } else {			/* IPv4 */
568
    to.in.sin_family = (sa_family_t)af;
569
    ret = inet_pton(af, ip, &to.in.sin_addr);
570
  }
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
571
  if(ret < 0 ){
13 by Björn Påhlsson
Added following support:
572
    perror("inet_pton");
573
    return -1;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
574
  }
13 by Björn Påhlsson
Added following support:
575
  if(ret == 0){
576
    fprintf(stderr, "Bad address: %s\n", ip);
577
    return -1;
578
  }
237.2.67 by Teddy Hogeborn
Four new interrelated features:
579
  if(af == AF_INET6){
580
    to.in6.sin6_port = htons(port); /* Spurious warnings from
581
				       -Wconversion and
582
				       -Wunreachable-code */
583
    
584
    if(IN6_IS_ADDR_LINKLOCAL /* Spurious warnings from */
585
       (&to.in6.sin6_addr)){ /* -Wstrict-aliasing=2 or lower and
586
			      -Wunreachable-code*/
587
      if(if_index == AVAHI_IF_UNSPEC){
588
	fprintf(stderr, "An IPv6 link-local address is incomplete"
589
		" without a network interface\n");
590
	return -1;
591
      }
592
      /* Set the network interface number as scope */
593
      to.in6.sin6_scope_id = (uint32_t)if_index;
594
    }
595
  } else {
596
    to.in.sin_port = htons(port); /* Spurious warnings from
237.2.30 by Teddy Hogeborn
* plugins.d/mandos-client.c: Only comment changes.
597
				     -Wconversion and
598
				     -Wunreachable-code */
237.2.67 by Teddy Hogeborn
Four new interrelated features:
599
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
600
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
601
  if(debug){
237.2.67 by Teddy Hogeborn
Four new interrelated features:
602
    if(af == AF_INET6 and if_index != AVAHI_IF_UNSPEC){
603
      char interface[IF_NAMESIZE];
604
      if(if_indextoname((unsigned int)if_index, interface) == NULL){
605
	perror("if_indextoname");
606
      } else {
607
	fprintf(stderr, "Connection to: %s%%%s, port %" PRIu16 "\n",
608
		ip, interface, port);
609
      }
610
    } else {
611
      fprintf(stderr, "Connection to: %s, port %" PRIu16 "\n", ip,
612
	      port);
613
    }
614
    char addrstr[(INET_ADDRSTRLEN > INET6_ADDRSTRLEN) ?
615
		 INET_ADDRSTRLEN : INET6_ADDRSTRLEN] = "";
616
    const char *pcret;
617
    if(af == AF_INET6){
618
      pcret = inet_ntop(af, &(to.in6.sin6_addr), addrstr,
619
			sizeof(addrstr));
620
    } else {
621
      pcret = inet_ntop(af, &(to.in.sin_addr), addrstr,
622
			sizeof(addrstr));
623
    }
624
    if(pcret == NULL){
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
625
      perror("inet_ntop");
626
    } else {
627
      if(strcmp(addrstr, ip) != 0){
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
628
	fprintf(stderr, "Canonical address form: %s\n", addrstr);
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
629
      }
630
    }
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
631
  }
13 by Björn Påhlsson
Added following support:
632
  
237.2.67 by Teddy Hogeborn
Four new interrelated features:
633
  if(af == AF_INET6){
634
    ret = connect(tcp_sd, &to.in6, sizeof(to));
635
  } else {
636
    ret = connect(tcp_sd, &to.in, sizeof(to)); /* IPv4 */
637
  }
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
638
  if(ret < 0){
13 by Björn Påhlsson
Added following support:
639
    perror("connect");
640
    return -1;
641
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
642
  
24.1.12 by Björn Påhlsson
merge +
643
  const char *out = mandos_protocol_version;
24.1.10 by Björn Påhlsson
merge commit
644
  written = 0;
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
645
  while(true){
24.1.10 by Björn Påhlsson
merge commit
646
    size_t out_size = strlen(out);
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
647
    ret = (int)TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
24.1.10 by Björn Påhlsson
merge commit
648
				   out_size - written));
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
649
    if(ret == -1){
24.1.10 by Björn Påhlsson
merge commit
650
      perror("write");
651
      retval = -1;
24.1.12 by Björn Påhlsson
merge +
652
      goto mandos_end;
24.1.10 by Björn Påhlsson
merge commit
653
    }
24.1.12 by Björn Påhlsson
merge +
654
    written += (size_t)ret;
24.1.10 by Björn Påhlsson
merge commit
655
    if(written < out_size){
656
      continue;
657
    } else {
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
658
      if(out == mandos_protocol_version){
24.1.10 by Björn Påhlsson
merge commit
659
	written = 0;
660
	out = "\r\n";
661
      } else {
662
	break;
663
      }
664
    }
665
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
666
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
667
  if(debug){
668
    fprintf(stderr, "Establishing TLS session with %s\n", ip);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
669
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
670
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
671
  gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t) tcp_sd);
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
672
  
24.1.29 by Björn Påhlsson
Added more header file comments
673
  do{
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
674
    ret = gnutls_handshake(session);
24.1.29 by Björn Påhlsson
Added more header file comments
675
  } while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
13 by Björn Påhlsson
Added following support:
676
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
677
  if(ret != GNUTLS_E_SUCCESS){
25 by Teddy Hogeborn
* mandos-clients.conf ([DEFAULT]): New section.
678
    if(debug){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
679
      fprintf(stderr, "*** GnuTLS Handshake failed ***\n");
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
680
      gnutls_perror(ret);
25 by Teddy Hogeborn
* mandos-clients.conf ([DEFAULT]): New section.
681
    }
13 by Björn Påhlsson
Added following support:
682
    retval = -1;
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
683
    goto mandos_end;
13 by Björn Påhlsson
Added following support:
684
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
685
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
686
  /* Read OpenPGP packet that contains the wanted password */
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
687
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
688
  if(debug){
237.2.67 by Teddy Hogeborn
Four new interrelated features:
689
    fprintf(stderr, "Retrieving OpenPGP encrypted password from %s\n",
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
690
	    ip);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
691
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
692
  
13 by Björn Påhlsson
Added following support:
693
  while(true){
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
694
    buffer_capacity = incbuffer(&buffer, buffer_length,
42 by Teddy Hogeborn
* plugins.d/mandosclient.c (start_mandos_communication): Change "to"
695
				   buffer_capacity);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
696
    if(buffer_capacity == 0){
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
697
      perror("incbuffer");
24.1.10 by Björn Påhlsson
merge commit
698
      retval = -1;
24.1.12 by Björn Påhlsson
merge +
699
      goto mandos_end;
13 by Björn Påhlsson
Added following support:
700
    }
701
    
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
702
    sret = gnutls_record_recv(session, buffer+buffer_length,
703
			      BUFFER_SIZE);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
704
    if(sret == 0){
13 by Björn Påhlsson
Added following support:
705
      break;
706
    }
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
707
    if(sret < 0){
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
708
      switch(sret){
13 by Björn Påhlsson
Added following support:
709
      case GNUTLS_E_INTERRUPTED:
710
      case GNUTLS_E_AGAIN:
711
	break;
712
      case GNUTLS_E_REHANDSHAKE:
24.1.29 by Björn Påhlsson
Added more header file comments
713
	do{
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
714
	  ret = gnutls_handshake(session);
24.1.29 by Björn Påhlsson
Added more header file comments
715
	} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
716
	if(ret < 0){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
717
	  fprintf(stderr, "*** GnuTLS Re-handshake failed ***\n");
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
718
	  gnutls_perror(ret);
13 by Björn Påhlsson
Added following support:
719
	  retval = -1;
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
720
	  goto mandos_end;
13 by Björn Påhlsson
Added following support:
721
	}
722
	break;
723
      default:
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
724
	fprintf(stderr, "Unknown error while reading data from"
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
725
		" encrypted session with Mandos server\n");
13 by Björn Påhlsson
Added following support:
726
	retval = -1;
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
727
	gnutls_bye(session, GNUTLS_SHUT_RDWR);
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
728
	goto mandos_end;
13 by Björn Påhlsson
Added following support:
729
      }
730
    } else {
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
731
      buffer_length += (size_t) sret;
13 by Björn Påhlsson
Added following support:
732
    }
733
  }
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
734
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
735
  if(debug){
736
    fprintf(stderr, "Closing TLS session\n");
737
  }
738
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
739
  gnutls_bye(session, GNUTLS_SHUT_RDWR);
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
740
  
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
741
  if(buffer_length > 0){
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
742
    decrypted_buffer_size = pgp_packet_decrypt(buffer,
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
743
					       buffer_length,
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
744
					       &decrypted_buffer);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
745
    if(decrypted_buffer_size >= 0){
24.1.10 by Björn Påhlsson
merge commit
746
      written = 0;
28 by Teddy Hogeborn
* server.conf: New file.
747
      while(written < (size_t) decrypted_buffer_size){
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
748
	ret = (int)fwrite(decrypted_buffer + written, 1,
749
			  (size_t)decrypted_buffer_size - written,
750
			  stdout);
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
751
	if(ret == 0 and ferror(stdout)){
752
	  if(debug){
753
	    fprintf(stderr, "Error writing encrypted data: %s\n",
754
		    strerror(errno));
755
	  }
756
	  retval = -1;
757
	  break;
758
	}
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
759
	written += (size_t)ret;
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
760
      }
13 by Björn Påhlsson
Added following support:
761
      free(decrypted_buffer);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
762
    } else {
763
      retval = -1;
13 by Björn Påhlsson
Added following support:
764
    }
24.1.63 by Björn Påhlsson
merge + fallback bugg
765
  } else {
766
    retval = -1;
13 by Björn Påhlsson
Added following support:
767
  }
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
768
  
769
  /* Shutdown procedure */
770
  
771
 mandos_end:
13 by Björn Påhlsson
Added following support:
772
  free(buffer);
237.3.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
773
  ret = (int)TEMP_FAILURE_RETRY(close(tcp_sd));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
774
  if(ret == -1){
775
    perror("close");
776
  }
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
777
  gnutls_deinit(session);
13 by Björn Påhlsson
Added following support:
778
  return retval;
779
}
780
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
781
static void resolve_callback(AvahiSServiceResolver *r,
782
			     AvahiIfIndex interface,
237.2.67 by Teddy Hogeborn
Four new interrelated features:
783
			     AvahiProtocol proto,
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
784
			     AvahiResolverEvent event,
785
			     const char *name,
786
			     const char *type,
787
			     const char *domain,
788
			     const char *host_name,
789
			     const AvahiAddress *address,
790
			     uint16_t port,
791
			     AVAHI_GCC_UNUSED AvahiStringList *txt,
792
			     AVAHI_GCC_UNUSED AvahiLookupResultFlags
793
			     flags,
237.2.70 by Teddy Hogeborn
Merge from Björn:
794
			     AVAHI_GCC_UNUSED void* userdata){
84 by Teddy Hogeborn
* Makefile (DOCBOOKTOMAN): Use the local manpages/docbook.xsl file, do
795
  assert(r);
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
796
  
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
797
  /* Called whenever a service has been resolved successfully or
798
     timed out */
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
799
  
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
800
  switch(event){
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
801
  default:
802
  case AVAHI_RESOLVER_FAILURE:
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
803
    fprintf(stderr, "(Avahi Resolver) Failed to resolve service '%s'"
804
	    " of type '%s' in domain '%s': %s\n", name, type, domain,
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
805
	    avahi_strerror(avahi_server_errno(mc.server)));
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
806
    break;
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
807
    
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
808
  case AVAHI_RESOLVER_FOUND:
809
    {
810
      char ip[AVAHI_ADDRESS_STR_MAX];
811
      avahi_address_snprint(ip, sizeof(ip), address);
812
      if(debug){
60 by Teddy Hogeborn
* mandos-client.c (main): Cast pid_t to unsigned int before printing.
813
	fprintf(stderr, "Mandos server \"%s\" found on %s (%s, %"
237.2.31 by Teddy Hogeborn
Fixes for sscanf usage:
814
		PRIdMAX ") on port %" PRIu16 "\n", name, host_name,
815
		ip, (intmax_t)interface, port);
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
816
      }
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
817
      int ret = start_mandos_communication(ip, port, interface,
237.2.67 by Teddy Hogeborn
Four new interrelated features:
818
					   avahi_proto_to_af(proto));
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
819
      if(ret == 0){
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
820
	avahi_simple_poll_quit(mc.simple_poll);
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
821
      }
13 by Björn Påhlsson
Added following support:
822
    }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
823
  }
824
  avahi_s_service_resolver_free(r);
13 by Björn Påhlsson
Added following support:
825
}
826
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
827
static void browse_callback(AvahiSServiceBrowser *b,
828
			    AvahiIfIndex interface,
829
			    AvahiProtocol protocol,
830
			    AvahiBrowserEvent event,
831
			    const char *name,
832
			    const char *type,
833
			    const char *domain,
834
			    AVAHI_GCC_UNUSED AvahiLookupResultFlags
835
			    flags,
237.2.70 by Teddy Hogeborn
Merge from Björn:
836
			    AVAHI_GCC_UNUSED void* userdata){
84 by Teddy Hogeborn
* Makefile (DOCBOOKTOMAN): Use the local manpages/docbook.xsl file, do
837
  assert(b);
24.1.9 by Björn Påhlsson
not working midwork...
838
  
839
  /* Called whenever a new services becomes available on the LAN or
840
     is removed from the LAN */
841
  
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
842
  switch(event){
24.1.9 by Björn Påhlsson
not working midwork...
843
  default:
844
  case AVAHI_BROWSER_FAILURE:
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
845
    
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
846
    fprintf(stderr, "(Avahi browser) %s\n",
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
847
	    avahi_strerror(avahi_server_errno(mc.server)));
848
    avahi_simple_poll_quit(mc.simple_poll);
24.1.9 by Björn Påhlsson
not working midwork...
849
    return;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
850
    
24.1.9 by Björn Påhlsson
not working midwork...
851
  case AVAHI_BROWSER_NEW:
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
852
    /* We ignore the returned Avahi resolver object. In the callback
853
       function we free it. If the Avahi server is terminated before
854
       the callback function is called the Avahi server will free the
855
       resolver for us. */
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
856
    
237.2.76 by Teddy Hogeborn
* plugins.d/mandos-client.c (browse_callback, main): Do not require
857
    if(avahi_s_service_resolver_new(mc.server, interface, protocol,
858
				    name, type, domain, protocol, 0,
859
				    resolve_callback, NULL) == NULL)
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
860
      fprintf(stderr, "Avahi: Failed to resolve service '%s': %s\n",
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
861
	      name, avahi_strerror(avahi_server_errno(mc.server)));
24.1.9 by Björn Påhlsson
not working midwork...
862
    break;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
863
    
24.1.9 by Björn Påhlsson
not working midwork...
864
  case AVAHI_BROWSER_REMOVE:
865
    break;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
866
    
24.1.9 by Björn Påhlsson
not working midwork...
867
  case AVAHI_BROWSER_ALL_FOR_NOW:
868
  case AVAHI_BROWSER_CACHE_EXHAUSTED:
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
869
    if(debug){
870
      fprintf(stderr, "No Mandos server found, still searching...\n");
871
    }
24.1.9 by Björn Påhlsson
not working midwork...
872
    break;
873
  }
13 by Björn Påhlsson
Added following support:
874
}
875
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
876
sig_atomic_t quit_now = 0;
877
24.1.135 by Björn Påhlsson
Earlier signal handling
878
/* stop main loop after sigterm has been called */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
879
static void handle_sigterm(__attribute__((unused)) int sig){
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
880
  if(quit_now){
881
    return;
882
  }
883
  quit_now = 1;
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
884
  int old_errno = errno;
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
885
  if(mc.simple_poll != NULL){
886
    avahi_simple_poll_quit(mc.simple_poll);
887
  }
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
888
  errno = old_errno;
889
}
890
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
891
int main(int argc, char *argv[]){
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
892
  AvahiSServiceBrowser *sb = NULL;
893
  int error;
894
  int ret;
895
  intmax_t tmpmax;
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
896
  char *tmp;
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
897
  int exitcode = EXIT_SUCCESS;
898
  const char *interface = "eth0";
899
  struct ifreq network;
900
  int sd;
901
  uid_t uid;
902
  gid_t gid;
903
  char *connect_to = NULL;
904
  char tempdir[] = "/tmp/mandosXXXXXX";
905
  bool tempdir_created = false;
906
  AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
907
  const char *seckey = PATHDIR "/" SECKEY;
908
  const char *pubkey = PATHDIR "/" PUBKEY;
909
  
910
  bool gnutls_initialized = false;
911
  bool gpgme_initialized = false;
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
912
  float delay = 2.5f;
913
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
914
  struct sigaction old_sigterm_action;
915
  struct sigaction sigterm_action = { .sa_handler = handle_sigterm };
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
916
  
917
  {
918
    struct argp_option options[] = {
919
      { .name = "debug", .key = 128,
920
	.doc = "Debug mode", .group = 3 },
921
      { .name = "connect", .key = 'c',
922
	.arg = "ADDRESS:PORT",
923
	.doc = "Connect directly to a specific Mandos server",
924
	.group = 1 },
925
      { .name = "interface", .key = 'i',
926
	.arg = "NAME",
237.2.67 by Teddy Hogeborn
Four new interrelated features:
927
	.doc = "Network interface that will be used to search for"
928
	" Mandos servers",
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
929
	.group = 1 },
930
      { .name = "seckey", .key = 's',
931
	.arg = "FILE",
932
	.doc = "OpenPGP secret key file base name",
933
	.group = 1 },
934
      { .name = "pubkey", .key = 'p',
935
	.arg = "FILE",
936
	.doc = "OpenPGP public key file base name",
937
	.group = 2 },
938
      { .name = "dh-bits", .key = 129,
939
	.arg = "BITS",
940
	.doc = "Bit length of the prime number used in the"
941
	" Diffie-Hellman key exchange",
942
	.group = 2 },
943
      { .name = "priority", .key = 130,
944
	.arg = "STRING",
945
	.doc = "GnuTLS priority string for the TLS handshake",
946
	.group = 1 },
947
      { .name = "delay", .key = 131,
948
	.arg = "SECONDS",
949
	.doc = "Maximum delay to wait for interface startup",
950
	.group = 2 },
951
      { .name = NULL }
952
    };
953
    
954
    error_t parse_opt(int key, char *arg,
955
		      struct argp_state *state){
956
      switch(key){
957
      case 128:			/* --debug */
958
	debug = true;
959
	break;
960
      case 'c':			/* --connect */
961
	connect_to = arg;
962
	break;
963
      case 'i':			/* --interface */
964
	interface = arg;
965
	break;
966
      case 's':			/* --seckey */
967
	seckey = arg;
968
	break;
969
      case 'p':			/* --pubkey */
970
	pubkey = arg;
971
	break;
972
      case 129:			/* --dh-bits */
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
973
	errno = 0;
974
	tmpmax = strtoimax(arg, &tmp, 10);
975
	if(errno != 0 or tmp == arg or *tmp != '\0'
976
	   or tmpmax != (typeof(mc.dh_bits))tmpmax){
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
977
	  fprintf(stderr, "Bad number of DH bits\n");
978
	  exit(EXIT_FAILURE);
979
	}
980
	mc.dh_bits = (typeof(mc.dh_bits))tmpmax;
981
	break;
982
      case 130:			/* --priority */
983
	mc.priority = arg;
984
	break;
985
      case 131:			/* --delay */
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
986
	errno = 0;
987
	delay = strtof(arg, &tmp);
988
	if(errno != 0 or tmp == arg or *tmp != '\0'){
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
989
	  fprintf(stderr, "Bad delay\n");
990
	  exit(EXIT_FAILURE);
991
	}
992
	break;
993
      case ARGP_KEY_ARG:
994
	argp_usage(state);
995
      case ARGP_KEY_END:
996
	break;
997
      default:
998
	return ARGP_ERR_UNKNOWN;
999
      }
1000
      return 0;
1001
    }
1002
    
1003
    struct argp argp = { .options = options, .parser = parse_opt,
1004
			 .args_doc = "",
1005
			 .doc = "Mandos client -- Get and decrypt"
1006
			 " passwords from a Mandos server" };
1007
    ret = argp_parse(&argp, argc, argv, 0, 0, NULL);
1008
    if(ret == ARGP_ERR_UNKNOWN){
1009
      fprintf(stderr, "Unknown error while parsing arguments\n");
1010
      exitcode = EXIT_FAILURE;
1011
      goto end;
1012
    }
1013
  }
1014
  
24.1.135 by Björn Påhlsson
Earlier signal handling
1015
  if(not debug){
1016
    avahi_set_log_function(empty_log);
1017
  }
237.2.72 by Teddy Hogeborn
Merge from Björn:
1018
  
24.1.135 by Björn Påhlsson
Earlier signal handling
1019
  /* Initialize Avahi early so avahi_simple_poll_quit() can be called
1020
     from the signal handler */
1021
  /* Initialize the pseudo-RNG for Avahi */
1022
  srand((unsigned int) time(NULL));
1023
  mc.simple_poll = avahi_simple_poll_new();
1024
  if(mc.simple_poll == NULL){
1025
    fprintf(stderr, "Avahi: Failed to create simple poll object.\n");
1026
    exitcode = EXIT_FAILURE;
1027
    goto end;
1028
  }
237.2.72 by Teddy Hogeborn
Merge from Björn:
1029
  
24.1.135 by Björn Påhlsson
Earlier signal handling
1030
  sigemptyset(&sigterm_action.sa_mask);
237.2.72 by Teddy Hogeborn
Merge from Björn:
1031
  ret = sigaddset(&sigterm_action.sa_mask, SIGINT);
1032
  if(ret == -1){
1033
    perror("sigaddset");
1034
    exitcode = EXIT_FAILURE;
1035
    goto end;
1036
  }
1037
  ret = sigaddset(&sigterm_action.sa_mask, SIGHUP);
1038
  if(ret == -1){
1039
    perror("sigaddset");
1040
    exitcode = EXIT_FAILURE;
1041
    goto end;
1042
  }
24.1.135 by Björn Påhlsson
Earlier signal handling
1043
  ret = sigaddset(&sigterm_action.sa_mask, SIGTERM);
1044
  if(ret == -1){
1045
    perror("sigaddset");
1046
    exitcode = EXIT_FAILURE;
1047
    goto end;
1048
  }
1049
  ret = sigaction(SIGTERM, &sigterm_action, &old_sigterm_action);
1050
  if(ret == -1){
1051
    perror("sigaction");
1052
    exitcode = EXIT_FAILURE;
1053
    goto end;
1054
  }  
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1055
  
1056
  /* If the interface is down, bring it up */
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1057
  if(interface[0] != '\0'){
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1058
#ifdef __linux__
1059
    /* Lower kernel loglevel to KERN_NOTICE to avoid KERN_INFO
1060
       messages to mess up the prompt */
1061
    ret = klogctl(8, NULL, 5);
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1062
    bool restore_loglevel = true;
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1063
    if(ret == -1){
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1064
      restore_loglevel = false;
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1065
      perror("klogctl");
1066
    }
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1067
#endif	/* __linux__ */
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1068
    
1069
    sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1070
    if(sd < 0){
1071
      perror("socket");
1072
      exitcode = EXIT_FAILURE;
1073
#ifdef __linux__
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1074
      if(restore_loglevel){
1075
	ret = klogctl(7, NULL, 0);
1076
	if(ret == -1){
1077
	  perror("klogctl");
1078
	}
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1079
      }
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1080
#endif	/* __linux__ */
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1081
      goto end;
1082
    }
1083
    strcpy(network.ifr_name, interface);
1084
    ret = ioctl(sd, SIOCGIFFLAGS, &network);
1085
    if(ret == -1){
1086
      perror("ioctl SIOCGIFFLAGS");
1087
#ifdef __linux__
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1088
      if(restore_loglevel){
1089
	ret = klogctl(7, NULL, 0);
1090
	if(ret == -1){
1091
	  perror("klogctl");
1092
	}
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1093
      }
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1094
#endif	/* __linux__ */
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1095
      exitcode = EXIT_FAILURE;
1096
      goto end;
1097
    }
1098
    if((network.ifr_flags & IFF_UP) == 0){
1099
      network.ifr_flags |= IFF_UP;
1100
      ret = ioctl(sd, SIOCSIFFLAGS, &network);
1101
      if(ret == -1){
1102
	perror("ioctl SIOCSIFFLAGS");
1103
	exitcode = EXIT_FAILURE;
1104
#ifdef __linux__
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1105
	if(restore_loglevel){
1106
	  ret = klogctl(7, NULL, 0);
1107
	  if(ret == -1){
1108
	    perror("klogctl");
1109
	  }
24.1.124 by Björn Påhlsson
Added lower kernel loglevel to reduce clutter on system console.
1110
	}
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1111
#endif	/* __linux__ */
65 by Teddy Hogeborn
* plugins.d/password-request.c (main): Bug fix: Bring up network
1112
	goto end;
1113
      }
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1114
    }
1115
    /* sleep checking until interface is running */
1116
    for(int i=0; i < delay * 4; i++){
65 by Teddy Hogeborn
* plugins.d/password-request.c (main): Bug fix: Bring up network
1117
      ret = ioctl(sd, SIOCGIFFLAGS, &network);
1118
      if(ret == -1){
1119
	perror("ioctl SIOCGIFFLAGS");
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1120
      } else if(network.ifr_flags & IFF_RUNNING){
1121
	break;
1122
      }
1123
      struct timespec sleeptime = { .tv_nsec = 250000000 };
1124
      ret = nanosleep(&sleeptime, NULL);
1125
      if(ret == -1 and errno != EINTR){
1126
	perror("nanosleep");
1127
      }
1128
    }
1129
    ret = (int)TEMP_FAILURE_RETRY(close(sd));
1130
    if(ret == -1){
1131
      perror("close");
1132
    }
1133
#ifdef __linux__
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1134
    if(restore_loglevel){
1135
      /* Restores kernel loglevel to default */
1136
      ret = klogctl(7, NULL, 0);
1137
      if(ret == -1){
1138
	perror("klogctl");
1139
      }
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1140
    }
237.2.71 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1141
#endif	/* __linux__ */
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1142
  }
1143
  
1144
  uid = getuid();
1145
  gid = getgid();
1146
  
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1147
  errno = 0;
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1148
  setgid(gid);
1149
  if(ret == -1){
1150
    perror("setgid");
1151
  }
1152
  
1153
  ret = setuid(uid);
1154
  if(ret == -1){
1155
    perror("setuid");
1156
  }
1157
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
1158
  ret = init_gnutls_global(pubkey, seckey);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1159
  if(ret == -1){
1160
    fprintf(stderr, "init_gnutls_global failed\n");
1161
    exitcode = EXIT_FAILURE;
1162
    goto end;
1163
  } else {
1164
    gnutls_initialized = true;
1165
  }
1166
  
1167
  if(mkdtemp(tempdir) == NULL){
1168
    perror("mkdtemp");
1169
    goto end;
1170
  }
1171
  tempdir_created = true;
1172
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
1173
  if(not init_gpgme(pubkey, seckey, tempdir)){
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1174
    fprintf(stderr, "init_gpgme failed\n");
1175
    exitcode = EXIT_FAILURE;
1176
    goto end;
1177
  } else {
1178
    gpgme_initialized = true;
1179
  }
1180
  
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1181
  if(interface[0] != '\0'){
1182
    if_index = (AvahiIfIndex) if_nametoindex(interface);
1183
    if(if_index == 0){
1184
      fprintf(stderr, "No such interface: \"%s\"\n", interface);
1185
      exitcode = EXIT_FAILURE;
1186
      goto end;
1187
    }
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1188
  }
1189
  
1190
  if(connect_to != NULL){
1191
    /* Connect directly, do not use Zeroconf */
1192
    /* (Mainly meant for debugging) */
1193
    char *address = strrchr(connect_to, ':');
1194
    if(address == NULL){
1195
      fprintf(stderr, "No colon in address\n");
1196
      exitcode = EXIT_FAILURE;
1197
      goto end;
1198
    }
1199
    uint16_t port;
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
1200
    errno = 0;
1201
    tmpmax = strtoimax(address+1, &tmp, 10);
1202
    if(errno != 0 or tmp == address+1 or *tmp != '\0'
1203
       or tmpmax != (uint16_t)tmpmax){
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1204
      fprintf(stderr, "Bad port number\n");
1205
      exitcode = EXIT_FAILURE;
1206
      goto end;
1207
    }
1208
    port = (uint16_t)tmpmax;
1209
    *address = '\0';
1210
    address = connect_to;
237.2.67 by Teddy Hogeborn
Four new interrelated features:
1211
    /* Colon in address indicates IPv6 */
1212
    int af;
1213
    if(strchr(address, ':') != NULL){
1214
      af = AF_INET6;
1215
    } else {
1216
      af = AF_INET;
1217
    }
237.2.70 by Teddy Hogeborn
Merge from Björn:
1218
    ret = start_mandos_communication(address, port, if_index, af);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1219
    if(ret < 0){
1220
      exitcode = EXIT_FAILURE;
1221
    } else {
1222
      exitcode = EXIT_SUCCESS;
1223
    }
1224
    goto end;
1225
  }
24.1.135 by Björn Påhlsson
Earlier signal handling
1226
    
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1227
  {
1228
    AvahiServerConfig config;
1229
    /* Do not publish any local Zeroconf records */
1230
    avahi_server_config_init(&config);
1231
    config.publish_hinfo = 0;
1232
    config.publish_addresses = 0;
1233
    config.publish_workstation = 0;
1234
    config.publish_domain = 0;
1235
    
1236
    /* Allocate a new server */
1237
    mc.server = avahi_server_new(avahi_simple_poll_get
1238
				 (mc.simple_poll), &config, NULL,
1239
				 NULL, &error);
1240
    
1241
    /* Free the Avahi configuration data */
1242
    avahi_server_config_free(&config);
1243
  }
1244
  
1245
  /* Check if creating the Avahi server object succeeded */
1246
  if(mc.server == NULL){
1247
    fprintf(stderr, "Failed to create Avahi server: %s\n",
1248
	    avahi_strerror(error));
1249
    exitcode = EXIT_FAILURE;
1250
    goto end;
1251
  }
1252
  
1253
  /* Create the Avahi service browser */
1254
  sb = avahi_s_service_browser_new(mc.server, if_index,
237.2.76 by Teddy Hogeborn
* plugins.d/mandos-client.c (browse_callback, main): Do not require
1255
				   AVAHI_PROTO_UNSPEC, "_mandos._tcp",
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
1256
				   NULL, 0, browse_callback, NULL);
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1257
  if(sb == NULL){
1258
    fprintf(stderr, "Failed to create service browser: %s\n",
1259
	    avahi_strerror(avahi_server_errno(mc.server)));
1260
    exitcode = EXIT_FAILURE;
1261
    goto end;
1262
  }
237.2.70 by Teddy Hogeborn
Merge from Björn:
1263
  
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1264
  /* Run the main loop */
1265
  
1266
  if(debug){
1267
    fprintf(stderr, "Starting Avahi loop search\n");
1268
  }
1269
  
1270
  avahi_simple_poll_loop(mc.simple_poll);
1271
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
1272
 end:
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1273
  
1274
  if(debug){
1275
    fprintf(stderr, "%s exiting\n", argv[0]);
1276
  }
1277
  
1278
  /* Cleanup things */
1279
  if(sb != NULL)
1280
    avahi_s_service_browser_free(sb);
1281
  
1282
  if(mc.server != NULL)
1283
    avahi_server_free(mc.server);
1284
  
1285
  if(mc.simple_poll != NULL)
1286
    avahi_simple_poll_free(mc.simple_poll);
1287
  
1288
  if(gnutls_initialized){
1289
    gnutls_certificate_free_credentials(mc.cred);
1290
    gnutls_global_deinit();
1291
    gnutls_dh_params_deinit(mc.dh_params);
1292
  }
1293
  
1294
  if(gpgme_initialized){
1295
    gpgme_release(mc.ctx);
1296
  }
1297
  
1298
  /* Removes the temp directory used by GPGME */
1299
  if(tempdir_created){
1300
    DIR *d;
1301
    struct dirent *direntry;
1302
    d = opendir(tempdir);
1303
    if(d == NULL){
1304
      if(errno != ENOENT){
1305
	perror("opendir");
1306
      }
1307
    } else {
1308
      while(true){
1309
	direntry = readdir(d);
1310
	if(direntry == NULL){
1311
	  break;
1312
	}
1313
	/* Skip "." and ".." */
1314
	if(direntry->d_name[0] == '.'
1315
	   and (direntry->d_name[1] == '\0'
1316
		or (direntry->d_name[1] == '.'
1317
		    and direntry->d_name[2] == '\0'))){
1318
	  continue;
1319
	}
1320
	char *fullname = NULL;
1321
	ret = asprintf(&fullname, "%s/%s", tempdir,
1322
		       direntry->d_name);
1323
	if(ret < 0){
1324
	  perror("asprintf");
1325
	  continue;
1326
	}
1327
	ret = remove(fullname);
1328
	if(ret == -1){
1329
	  fprintf(stderr, "remove(\"%s\"): %s\n", fullname,
1330
		  strerror(errno));
1331
	}
1332
	free(fullname);
1333
      }
1334
      closedir(d);
1335
    }
1336
    ret = rmdir(tempdir);
1337
    if(ret == -1 and errno != ENOENT){
1338
      perror("rmdir");
1339
    }
1340
  }
1341
  
1342
  return exitcode;
13 by Björn Påhlsson
Added following support:
1343
}