/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
1
/*  -*- coding: utf-8 -*- */
2
/*
261 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
466 by Teddy Hogeborn
Update copyright year to "2011" wherever appropriate.
12
 * Copyright © 2008-2011 Teddy Hogeborn
13
 * Copyright © 2008-2011 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
 * 
505.1.2 by Teddy Hogeborn
Change "fukt.bsnet.se" to "recompile.se" throughout.
29
 * Contact the authors at <mandos@recompile.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() */
317 by Teddy Hogeborn
Use "getconf" to get correct LFS compile and link flags.
33
#ifndef _LARGEFILE_SOURCE
13 by Björn Påhlsson
Added following support:
34
#define _LARGEFILE_SOURCE
317 by Teddy Hogeborn
Use "getconf" to get correct LFS compile and link flags.
35
#endif
36
#ifndef _FILE_OFFSET_BITS
13 by Björn Påhlsson
Added following support:
37
#define _FILE_OFFSET_BITS 64
317 by Teddy Hogeborn
Use "getconf" to get correct LFS compile and link flags.
38
#endif
13 by Björn Påhlsson
Added following support:
39
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
40
#define _GNU_SOURCE		/* TEMP_FAILURE_RETRY(), asprintf() */
24.1.10 by Björn Påhlsson
merge commit
41
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
42
#include <stdio.h>		/* fprintf(), stderr, fwrite(),
311 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
43
				   stdout, ferror(), remove() */
24.1.26 by Björn Påhlsson
tally count of used symbols
44
#include <stdint.h> 		/* uint16_t, uint32_t */
45
#include <stddef.h>		/* NULL, size_t, ssize_t */
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
46
#include <stdlib.h> 		/* free(), EXIT_SUCCESS, srand(),
47
				   strtof(), abort() */
304 by Teddy Hogeborn
Four new interrelated features:
48
#include <stdbool.h>		/* bool, false, true */
24.1.29 by Björn Påhlsson
Added more header file comments
49
#include <string.h>		/* memset(), strcmp(), strlen(),
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
50
				   strerror(), asprintf(), strcpy() */
304 by Teddy Hogeborn
Four new interrelated features:
51
#include <sys/ioctl.h>		/* ioctl */
24.1.26 by Björn Påhlsson
tally count of used symbols
52
#include <sys/types.h>		/* socket(), inet_pton(), sockaddr,
24.1.29 by Björn Påhlsson
Added more header file comments
53
				   sockaddr_in6, PF_INET6,
304 by Teddy Hogeborn
Four new interrelated features:
54
				   SOCK_STREAM, uid_t, gid_t, open(),
55
				   opendir(), DIR */
505.3.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Add error message.
56
#include <sys/stat.h>		/* open(), S_ISREG */
24.1.26 by Björn Påhlsson
tally count of used symbols
57
#include <sys/socket.h>		/* socket(), struct sockaddr_in6,
304 by Teddy Hogeborn
Four new interrelated features:
58
				   inet_pton(), connect() */
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
59
#include <fcntl.h>		/* open() */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
60
#include <dirent.h>		/* opendir(), struct dirent, readdir()
61
				 */
311 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
62
#include <inttypes.h>		/* PRIu16, PRIdMAX, intmax_t,
63
				   strtoimax() */
24.1.29 by Björn Påhlsson
Added more header file comments
64
#include <assert.h>		/* assert() */
485 by Teddy Hogeborn
Merge from Björn.
65
#include <errno.h>		/* perror(), errno,
66
				   program_invocation_short_name */
24.1.163 by Björn Påhlsson
mandos-client: Added never ending loop for --connect
67
#include <time.h>		/* nanosleep(), time(), sleep() */
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
68
#include <net/if.h>		/* ioctl, ifreq, SIOCGIFFLAGS, IFF_UP,
24.1.26 by Björn Påhlsson
tally count of used symbols
69
				   SIOCSIFFLAGS, if_indextoname(),
70
				   if_nametoindex(), IF_NAMESIZE */
304 by Teddy Hogeborn
Four new interrelated features:
71
#include <netinet/in.h>		/* IN6_IS_ADDR_LINKLOCAL,
72
				   INET_ADDRSTRLEN, INET6_ADDRSTRLEN
73
				*/
24.1.29 by Björn Påhlsson
Added more header file comments
74
#include <unistd.h>		/* close(), SEEK_SET, off_t, write(),
365 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Bug fix: Check result of setgid().
75
				   getuid(), getgid(), seteuid(),
505.3.15 by teddy at bsnet
* plugins.d/mandos-client.c (run_network_hooks): Do _exit() on failure
76
				   setgid(), pause(), _exit() */
484 by Teddy Hogeborn
* Makefile (plugins.d/mandos-client): Bug fix: Put $^ before all
77
#include <arpa/inet.h>		/* inet_pton(), htons, inet_ntop() */
304 by Teddy Hogeborn
Four new interrelated features:
78
#include <iso646.h>		/* not, or, and */
24.1.29 by Björn Påhlsson
Added more header file comments
79
#include <argp.h>		/* struct argp_option, error_t, struct
80
				   argp_state, struct argp,
81
				   argp_parse(), ARGP_KEY_ARG,
82
				   ARGP_KEY_END, ARGP_ERR_UNKNOWN */
307 by Teddy Hogeborn
Merge from Björn:
83
#include <signal.h>		/* sigemptyset(), sigaddset(),
354 by Teddy Hogeborn
* plugins.d/mandos-client.c (signal_received): New.
84
				   sigaction(), SIGTERM, sig_atomic_t,
85
				   raise() */
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
86
#include <sysexits.h>		/* EX_OSERR, EX_USAGE, EX_UNAVAILABLE,
87
				   EX_NOHOST, EX_IOERR, EX_PROTOCOL */
505.3.3 by teddy at bsnet
* plugins.d/mandos-client.c: Prefix all printouts with "Mandos plugin
88
#include <sys/wait.h>		/* waitpid(), WIFEXITED(),
89
				   WEXITSTATUS(), WTERMSIG() */
505.3.16 by teddy at bsnet
* network-hooks.d/bridge: Use "/usr/sbin/brctl" explicitly.
90
#include <grp.h>		/* setgroups() */
307 by Teddy Hogeborn
Merge from Björn:
91
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
92
#ifdef __linux__
24.1.124 by Björn Påhlsson
Added lower kernel loglevel to reduce clutter on system console.
93
#include <sys/klog.h> 		/* klogctl() */
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
94
#endif	/* __linux__ */
24.1.26 by Björn Påhlsson
tally count of used symbols
95
96
/* Avahi */
24.1.29 by Björn Påhlsson
Added more header file comments
97
/* All Avahi types, constants and functions
98
 Avahi*, avahi_*,
99
 AVAHI_* */
100
#include <avahi-core/core.h>
24.1.26 by Björn Påhlsson
tally count of used symbols
101
#include <avahi-core/lookup.h>
24.1.29 by Björn Påhlsson
Added more header file comments
102
#include <avahi-core/log.h>
24.1.26 by Björn Påhlsson
tally count of used symbols
103
#include <avahi-common/simple-watch.h>
104
#include <avahi-common/malloc.h>
105
#include <avahi-common/error.h>
106
107
/* GnuTLS */
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
108
#include <gnutls/gnutls.h>	/* All GnuTLS types, constants and
109
				   functions:
24.1.29 by Björn Påhlsson
Added more header file comments
110
				   gnutls_*
24.1.26 by Björn Påhlsson
tally count of used symbols
111
				   init_gnutls_session(),
24.1.29 by Björn Påhlsson
Added more header file comments
112
				   GNUTLS_* */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
113
#include <gnutls/openpgp.h>
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
114
			 /* gnutls_certificate_set_openpgp_key_file(),
115
			    GNUTLS_OPENPGP_FMT_BASE64 */
24.1.26 by Björn Påhlsson
tally count of used symbols
116
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
117
/* GPGME */
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
118
#include <gpgme.h> 		/* All GPGME types, constants and
119
				   functions:
24.1.29 by Björn Påhlsson
Added more header file comments
120
				   gpgme_*
24.1.26 by Björn Påhlsson
tally count of used symbols
121
				   GPGME_PROTOCOL_OpenPGP,
24.1.29 by Björn Påhlsson
Added more header file comments
122
				   GPG_ERR_NO_* */
13 by Björn Påhlsson
Added following support:
123
124
#define BUFFER_SIZE 256
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
125
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
126
#define PATHDIR "/conf/conf.d/mandos"
127
#define SECKEY "seckey.txt"
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
128
#define PUBKEY "pubkey.txt"
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
129
#define HOOKDIR "/lib/mandos/network-hooks.d"
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
130
15.1.2 by Björn Påhlsson
Added debug options from passprompt as --debug and --debug=passprompt
131
bool debug = false;
43 by Teddy Hogeborn
* plugins.d/mandosclient.c: Cosmetic changes.
132
static const char mandos_protocol_version[] = "1";
217 by Teddy Hogeborn
* .bzrignore: Added "man" directory (created by "make install-html").
133
const char *argp_program_version = "mandos-client " VERSION;
505.1.2 by Teddy Hogeborn
Change "fukt.bsnet.se" to "recompile.se" throughout.
134
const char *argp_program_bug_address = "<mandos@recompile.se>";
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
135
static const char sys_class_net[] = "/sys/class/net";
136
char *connect_to = NULL;
505.3.4 by teddy at bsnet
* plugins.d/mandos-client.c (runnable_hook): Bug fix: stat using the
137
const char *hookdir = HOOKDIR;
24.1.10 by Björn Påhlsson
merge commit
138
485 by Teddy Hogeborn
Merge from Björn.
139
/* Doubly linked list that need to be circularly linked when used */
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
140
typedef struct server{
141
  const char *ip;
142
  uint16_t port;
143
  AvahiIfIndex if_index;
144
  int af;
145
  struct timespec last_seen;
146
  struct server *next;
147
  struct server *prev;
148
} server;
149
42 by Teddy Hogeborn
* plugins.d/mandosclient.c (start_mandos_communication): Change "to"
150
/* Used for passing in values through the Avahi callback functions */
13 by Björn Påhlsson
Added following support:
151
typedef struct {
24.1.9 by Björn Påhlsson
not working midwork...
152
  AvahiSimplePoll *simple_poll;
153
  AvahiServer *server;
13 by Björn Påhlsson
Added following support:
154
  gnutls_certificate_credentials_t cred;
24.1.9 by Björn Påhlsson
not working midwork...
155
  unsigned int dh_bits;
24.1.13 by Björn Påhlsson
mandosclient
156
  gnutls_dh_params_t dh_params;
24.1.9 by Björn Påhlsson
not working midwork...
157
  const char *priority;
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
158
  gpgme_ctx_t ctx;
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
159
  server *current_server;
24.1.9 by Björn Påhlsson
not working midwork...
160
} mandos_context;
13 by Björn Påhlsson
Added following support:
161
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
162
/* global context so signal handler can reach it*/
24.1.135 by Björn Påhlsson
Earlier signal handling
163
mandos_context mc = { .simple_poll = NULL, .server = NULL,
164
		      .dh_bits = 1024, .priority = "SECURE256"
485 by Teddy Hogeborn
Merge from Björn.
165
		      ":!CTYPE-X.509:+CTYPE-OPENPGP",
166
		      .current_server = NULL };
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
167
371 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Always fail and
168
sig_atomic_t quit_now = 0;
169
int signal_received = 0;
170
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
171
/* Function to use when printing errors */
172
void perror_plus(const char *print_text){
485 by Teddy Hogeborn
Merge from Björn.
173
  fprintf(stderr, "Mandos plugin %s: ",
174
	  program_invocation_short_name);
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
175
  perror(print_text);
176
}
177
505.2.4 by Björn Påhlsson
New convinence error printer: fprintf_plus
178
int fprintf_plus(FILE *stream, const char *format, ...){
179
  va_list ap;
180
  va_start (ap, format);
181
  
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
182
  TEMP_FAILURE_RETRY(fprintf(stream, "Mandos plugin %s: ",
183
			     program_invocation_short_name));
505.2.4 by Björn Påhlsson
New convinence error printer: fprintf_plus
184
  return TEMP_FAILURE_RETRY(vfprintf(stream, format, ap));
185
}
186
43 by Teddy Hogeborn
* plugins.d/mandosclient.c: Cosmetic changes.
187
/*
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
188
 * Make additional room in "buffer" for at least BUFFER_SIZE more
189
 * bytes. "buffer_capacity" is how much is currently allocated,
190
 * "buffer_length" is how much is already used.
43 by Teddy Hogeborn
* plugins.d/mandosclient.c: Cosmetic changes.
191
 */
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
192
size_t incbuffer(char **buffer, size_t buffer_length,
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
193
		 size_t buffer_capacity){
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
194
  if(buffer_length + BUFFER_SIZE > buffer_capacity){
24.1.12 by Björn Påhlsson
merge +
195
    *buffer = realloc(*buffer, buffer_capacity + BUFFER_SIZE);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
196
    if(buffer == NULL){
24.1.10 by Björn Påhlsson
merge commit
197
      return 0;
198
    }
199
    buffer_capacity += BUFFER_SIZE;
200
  }
201
  return buffer_capacity;
202
}
203
491 by teddy at bsnet
* plugins.d/mandos-client.c (avahi_loop_with_timeout): Fix warning.
204
/* Add server to set of servers to retry periodically */
505.1.27 by teddy at bsnet
* plugins.d/mandos-client.c (add_server): Return bool; all callers
205
bool add_server(const char *ip, uint16_t port, AvahiIfIndex if_index,
206
		int af){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
207
  int ret;
208
  server *new_server = malloc(sizeof(server));
209
  if(new_server == NULL){
210
    perror_plus("malloc");
505.1.27 by teddy at bsnet
* plugins.d/mandos-client.c (add_server): Return bool; all callers
211
    return false;
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
212
  }
213
  *new_server = (server){ .ip = strdup(ip),
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
214
			  .port = port,
215
			  .if_index = if_index,
216
			  .af = af };
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
217
  if(new_server->ip == NULL){
218
    perror_plus("strdup");
505.1.27 by teddy at bsnet
* plugins.d/mandos-client.c (add_server): Return bool; all callers
219
    return false;
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
220
  }
491 by teddy at bsnet
* plugins.d/mandos-client.c (avahi_loop_with_timeout): Fix warning.
221
  /* Special case of first server */
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
222
  if (mc.current_server == NULL){
223
    new_server->next = new_server;
224
    new_server->prev = new_server;
225
    mc.current_server = new_server;
491 by teddy at bsnet
* plugins.d/mandos-client.c (avahi_loop_with_timeout): Fix warning.
226
  /* Place the new server last in the list */
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
227
  } else {
228
    new_server->next = mc.current_server;
229
    new_server->prev = mc.current_server->prev;
230
    new_server->prev->next = new_server;
231
    mc.current_server->prev = new_server;
232
  }
233
  ret = clock_gettime(CLOCK_MONOTONIC, &mc.current_server->last_seen);
234
  if(ret == -1){
235
    perror_plus("clock_gettime");
505.1.27 by teddy at bsnet
* plugins.d/mandos-client.c (add_server): Return bool; all callers
236
    return false;
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
237
  }
505.1.27 by teddy at bsnet
* plugins.d/mandos-client.c (add_server): Return bool; all callers
238
  return true;
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
239
}
240
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
241
/* 
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
242
 * Initialize GPGME.
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
243
 */
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
244
static bool init_gpgme(const char *seckey, const char *pubkey,
245
		       const char *tempdir){
13 by Björn Påhlsson
Added following support:
246
  gpgme_error_t rc;
247
  gpgme_engine_info_t engine_info;
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
248
  
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
249
  
250
  /*
288 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Use separate bool variable instead
251
   * 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.
252
   */
253
  bool import_key(const char *filename){
361 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gpgme): Move variable "ret" into the
254
    int ret;
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
255
    int fd;
256
    gpgme_data_t pgp_data;
257
    
257.1.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
258
    fd = (int)TEMP_FAILURE_RETRY(open(filename, O_RDONLY));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
259
    if(fd == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
260
      perror_plus("open");
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
261
      return false;
262
    }
263
    
264
    rc = gpgme_data_new_from_fd(&pgp_data, fd);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
265
    if(rc != GPG_ERR_NO_ERROR){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
266
      fprintf_plus(stderr, "bad gpgme_data_new_from_fd: %s: %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
267
		   gpgme_strsource(rc), gpgme_strerror(rc));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
268
      return false;
269
    }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
270
    
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
271
    rc = gpgme_op_import(mc.ctx, pgp_data);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
272
    if(rc != GPG_ERR_NO_ERROR){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
273
      fprintf_plus(stderr, "bad gpgme_op_import: %s: %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
274
		   gpgme_strsource(rc), gpgme_strerror(rc));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
275
      return false;
276
    }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
277
    
257.1.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
278
    ret = (int)TEMP_FAILURE_RETRY(close(fd));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
279
    if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
280
      perror_plus("close");
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
281
    }
282
    gpgme_data_release(pgp_data);
283
    return true;
284
  }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
285
  
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
286
  if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
287
    fprintf_plus(stderr, "Initializing GPGME\n");
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
288
  }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
289
  
13 by Björn Påhlsson
Added following support:
290
  /* Init GPGME */
291
  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.
292
  rc = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
293
  if(rc != GPG_ERR_NO_ERROR){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
294
    fprintf_plus(stderr, "bad gpgme_engine_check_version: %s: %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
295
		 gpgme_strsource(rc), gpgme_strerror(rc));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
296
    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.
297
  }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
298
  
492 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Do not even try to work around
299
  /* Set GPGME home directory for the OpenPGP engine only */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
300
  rc = gpgme_get_engine_info(&engine_info);
301
  if(rc != GPG_ERR_NO_ERROR){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
302
    fprintf_plus(stderr, "bad gpgme_get_engine_info: %s: %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
303
		 gpgme_strsource(rc), gpgme_strerror(rc));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
304
    return false;
13 by Björn Påhlsson
Added following support:
305
  }
306
  while(engine_info != NULL){
307
    if(engine_info->protocol == GPGME_PROTOCOL_OpenPGP){
308
      gpgme_set_engine_info(GPGME_PROTOCOL_OpenPGP,
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
309
			    engine_info->file_name, tempdir);
13 by Björn Påhlsson
Added following support:
310
      break;
311
    }
312
    engine_info = engine_info->next;
313
  }
314
  if(engine_info == NULL){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
315
    fprintf_plus(stderr, "Could not set GPGME home dir to %s\n",
316
		 tempdir);
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
317
    return false;
318
  }
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
319
  
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
320
  /* Create new GPGME "context" */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
321
  rc = gpgme_new(&(mc.ctx));
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
322
  if(rc != GPG_ERR_NO_ERROR){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
323
    fprintf_plus(stderr, "Mandos plugin mandos-client: "
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
324
		 "bad gpgme_new: %s: %s\n", gpgme_strsource(rc),
325
		 gpgme_strerror(rc));
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
326
    return false;
327
  }
328
  
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
329
  if(not import_key(pubkey) or not import_key(seckey)){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
330
    return false;
331
  }
332
  
355 by Teddy Hogeborn
* mandos: White-space fixes only.
333
  return true;
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
334
}
335
336
/* 
337
 * Decrypt OpenPGP data.
338
 * Returns -1 on error
339
 */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
340
static ssize_t pgp_packet_decrypt(const char *cryptotext,
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
341
				  size_t crypto_size,
342
				  char **plaintext){
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
343
  gpgme_data_t dh_crypto, dh_plain;
344
  gpgme_error_t rc;
345
  ssize_t ret;
346
  size_t plaintext_capacity = 0;
347
  ssize_t plaintext_length = 0;
348
  
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
349
  if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
350
    fprintf_plus(stderr, "Trying to decrypt OpenPGP data\n");
13 by Björn Påhlsson
Added following support:
351
  }
352
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
353
  /* Create new GPGME data buffer from memory cryptotext */
354
  rc = gpgme_data_new_from_mem(&dh_crypto, cryptotext, crypto_size,
355
			       0);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
356
  if(rc != GPG_ERR_NO_ERROR){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
357
    fprintf_plus(stderr, "bad gpgme_data_new_from_mem: %s: %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
358
		 gpgme_strsource(rc), gpgme_strerror(rc));
13 by Björn Påhlsson
Added following support:
359
    return -1;
360
  }
361
  
362
  /* Create new empty GPGME data buffer for the plaintext */
363
  rc = gpgme_data_new(&dh_plain);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
364
  if(rc != GPG_ERR_NO_ERROR){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
365
    fprintf_plus(stderr, "Mandos plugin mandos-client: "
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
366
		 "bad gpgme_data_new: %s: %s\n",
367
		 gpgme_strsource(rc), gpgme_strerror(rc));
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
368
    gpgme_data_release(dh_crypto);
13 by Björn Påhlsson
Added following support:
369
    return -1;
370
  }
371
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
372
  /* Decrypt data from the cryptotext data buffer to the plaintext
373
     data buffer */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
374
  rc = gpgme_op_decrypt(mc.ctx, dh_crypto, dh_plain);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
375
  if(rc != GPG_ERR_NO_ERROR){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
376
    fprintf_plus(stderr, "bad gpgme_op_decrypt: %s: %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
377
		 gpgme_strsource(rc), gpgme_strerror(rc));
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
378
    plaintext_length = -1;
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
379
    if(debug){
99 by Teddy Hogeborn
* mandos (fingerprint): Bug fix: Check crtverify.value, not crtverify.
380
      gpgme_decrypt_result_t result;
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
381
      result = gpgme_op_decrypt_result(mc.ctx);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
382
      if(result == NULL){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
383
	fprintf_plus(stderr, "gpgme_op_decrypt_result failed\n");
99 by Teddy Hogeborn
* mandos (fingerprint): Bug fix: Check crtverify.value, not crtverify.
384
      } else {
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
385
	fprintf_plus(stderr, "Unsupported algorithm: %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
386
		     result->unsupported_algorithm);
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
387
	fprintf_plus(stderr, "Wrong key usage: %u\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
388
		     result->wrong_key_usage);
99 by Teddy Hogeborn
* mandos (fingerprint): Bug fix: Check crtverify.value, not crtverify.
389
	if(result->file_name != NULL){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
390
	  fprintf_plus(stderr, "File name: %s\n", result->file_name);
99 by Teddy Hogeborn
* mandos (fingerprint): Bug fix: Check crtverify.value, not crtverify.
391
	}
392
	gpgme_recipient_t recipient;
393
	recipient = result->recipients;
349 by Teddy Hogeborn
* plugins.d/mandos-client.c (pgp_packet_decrypt): Remove redundant
394
	while(recipient != NULL){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
395
	  fprintf_plus(stderr, "Public key algorithm: %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
396
		       gpgme_pubkey_algo_name
397
		       (recipient->pubkey_algo));
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
398
	  fprintf_plus(stderr, "Key ID: %s\n", recipient->keyid);
399
	  fprintf_plus(stderr, "Secret key available: %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
400
		       recipient->status == GPG_ERR_NO_SECKEY
401
		       ? "No" : "Yes");
349 by Teddy Hogeborn
* plugins.d/mandos-client.c (pgp_packet_decrypt): Remove redundant
402
	  recipient = recipient->next;
99 by Teddy Hogeborn
* mandos (fingerprint): Bug fix: Check crtverify.value, not crtverify.
403
	}
404
      }
405
    }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
406
    goto decrypt_end;
13 by Björn Påhlsson
Added following support:
407
  }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
408
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
409
  if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
410
    fprintf_plus(stderr, "Decryption of OpenPGP data succeeded\n");
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
411
  }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
412
  
13 by Björn Påhlsson
Added following support:
413
  /* Seek back to the beginning of the GPGME plaintext data buffer */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
414
  if(gpgme_data_seek(dh_plain, (off_t)0, SEEK_SET) == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
415
    perror_plus("gpgme_data_seek");
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
416
    plaintext_length = -1;
417
    goto decrypt_end;
24.1.5 by Björn Påhlsson
plugbasedclient:
418
  }
419
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
420
  *plaintext = NULL;
13 by Björn Påhlsson
Added following support:
421
  while(true){
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
422
    plaintext_capacity = incbuffer(plaintext,
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
423
				   (size_t)plaintext_length,
424
				   plaintext_capacity);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
425
    if(plaintext_capacity == 0){
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
426
      perror_plus("incbuffer");
427
      plaintext_length = -1;
428
      goto decrypt_end;
13 by Björn Påhlsson
Added following support:
429
    }
430
    
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
431
    ret = gpgme_data_read(dh_plain, *plaintext + plaintext_length,
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
432
			  BUFFER_SIZE);
13 by Björn Påhlsson
Added following support:
433
    /* Print the data, if any */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
434
    if(ret == 0){
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
435
      /* EOF */
13 by Björn Påhlsson
Added following support:
436
      break;
437
    }
438
    if(ret < 0){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
439
      perror_plus("gpgme_data_read");
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
440
      plaintext_length = -1;
441
      goto decrypt_end;
13 by Björn Påhlsson
Added following support:
442
    }
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
443
    plaintext_length += ret;
13 by Björn Påhlsson
Added following support:
444
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
445
  
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
446
  if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
447
    fprintf_plus(stderr, "Decrypted password is: ");
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
448
    for(ssize_t i = 0; i < plaintext_length; i++){
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
449
      fprintf(stderr, "%02hhX ", (*plaintext)[i]);
450
    }
451
    fprintf(stderr, "\n");
452
  }
453
  
454
 decrypt_end:
455
  
456
  /* Delete the GPGME cryptotext data buffer */
457
  gpgme_data_release(dh_crypto);
15.1.3 by Björn Påhlsson
Added getopt_long support for mandosclient and passprompt
458
  
459
  /* Delete the GPGME plaintext data buffer */
13 by Björn Påhlsson
Added following support:
460
  gpgme_data_release(dh_plain);
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
461
  return plaintext_length;
13 by Björn Påhlsson
Added following support:
462
}
463
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
464
static const char * safer_gnutls_strerror(int value){
267 by Teddy Hogeborn
* plugins.d/mandos-client.c: Only comment changes.
465
  const char *ret = gnutls_strerror(value); /* Spurious warning from
466
					       -Wunreachable-code */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
467
  if(ret == NULL)
13 by Björn Påhlsson
Added following support:
468
    ret = "(unknown)";
469
  return ret;
470
}
471
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
472
/* GnuTLS log function callback */
36 by Teddy Hogeborn
* TODO: Converted to org-mode style
473
static void debuggnutls(__attribute__((unused)) int level,
474
			const char* string){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
475
  fprintf_plus(stderr, "GnuTLS: %s", string);
13 by Björn Påhlsson
Added following support:
476
}
477
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
478
static int init_gnutls_global(const char *pubkeyfilename,
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
479
			      const char *seckeyfilename){
13 by Björn Påhlsson
Added following support:
480
  int ret;
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
481
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
482
  if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
483
    fprintf_plus(stderr, "Initializing GnuTLS\n");
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
484
  }
24.1.29 by Björn Påhlsson
Added more header file comments
485
  
486
  ret = gnutls_global_init();
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
487
  if(ret != GNUTLS_E_SUCCESS){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
488
    fprintf_plus(stderr, "GnuTLS global_init: %s\n",
489
		 safer_gnutls_strerror(ret));
13 by Björn Påhlsson
Added following support:
490
    return -1;
491
  }
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
492
  
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
493
  if(debug){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
494
    /* "Use a log level over 10 to enable all debugging options."
495
     * - GnuTLS manual
496
     */
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
497
    gnutls_global_set_log_level(11);
498
    gnutls_global_set_log_function(debuggnutls);
499
  }
500
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
501
  /* OpenPGP credentials */
484 by Teddy Hogeborn
* Makefile (plugins.d/mandos-client): Bug fix: Put $^ before all
502
  ret = gnutls_certificate_allocate_credentials(&mc.cred);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
503
  if(ret != GNUTLS_E_SUCCESS){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
504
    fprintf_plus(stderr, "GnuTLS memory error: %s\n",
505
		 safer_gnutls_strerror(ret));
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
506
    gnutls_global_deinit();
13 by Björn Påhlsson
Added following support:
507
    return -1;
508
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
509
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
510
  if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
511
    fprintf_plus(stderr, "Attempting to use OpenPGP public key %s and"
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
512
		 " secret key %s as GnuTLS credentials\n",
513
		 pubkeyfilename,
514
		 seckeyfilename);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
515
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
516
  
13 by Björn Påhlsson
Added following support:
517
  ret = gnutls_certificate_set_openpgp_key_file
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
518
    (mc.cred, pubkeyfilename, seckeyfilename,
76 by Teddy Hogeborn
* plugins.d/password-request.c (init_gnutls_global): Renamed
519
     GNUTLS_OPENPGP_FMT_BASE64);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
520
  if(ret != GNUTLS_E_SUCCESS){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
521
    fprintf_plus(stderr,
522
		 "Error[%d] while reading the OpenPGP key pair ('%s',"
523
		 " '%s')\n", ret, pubkeyfilename, seckeyfilename);
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
524
    fprintf_plus(stderr, "The GnuTLS error is: %s\n",
525
		 safer_gnutls_strerror(ret));
24.1.20 by Björn Påhlsson
mandosclient
526
    goto globalfail;
13 by Björn Påhlsson
Added following support:
527
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
528
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
529
  /* GnuTLS server initialization */
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
530
  ret = gnutls_dh_params_init(&mc.dh_params);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
531
  if(ret != GNUTLS_E_SUCCESS){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
532
    fprintf_plus(stderr, "Error in GnuTLS DH parameter"
533
		 " initialization: %s\n",
534
		 safer_gnutls_strerror(ret));
24.1.20 by Björn Påhlsson
mandosclient
535
    goto globalfail;
13 by Björn Påhlsson
Added following support:
536
  }
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
537
  ret = gnutls_dh_params_generate2(mc.dh_params, mc.dh_bits);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
538
  if(ret != GNUTLS_E_SUCCESS){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
539
    fprintf_plus(stderr, "Error in GnuTLS prime generation: %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
540
		 safer_gnutls_strerror(ret));
24.1.20 by Björn Påhlsson
mandosclient
541
    goto globalfail;
13 by Björn Påhlsson
Added following support:
542
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
543
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
544
  gnutls_certificate_set_dh_params(mc.cred, mc.dh_params);
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
545
  
24.1.13 by Björn Påhlsson
mandosclient
546
  return 0;
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
547
  
24.1.20 by Björn Påhlsson
mandosclient
548
 globalfail:
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
549
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
550
  gnutls_certificate_free_credentials(mc.cred);
24.1.26 by Björn Påhlsson
tally count of used symbols
551
  gnutls_global_deinit();
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
552
  gnutls_dh_params_deinit(mc.dh_params);
24.1.20 by Björn Påhlsson
mandosclient
553
  return -1;
24.1.13 by Björn Påhlsson
mandosclient
554
}
555
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
556
static int init_gnutls_session(gnutls_session_t *session){
24.1.13 by Björn Påhlsson
mandosclient
557
  int ret;
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
558
  /* GnuTLS session creation */
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
559
  do {
560
    ret = gnutls_init(session, GNUTLS_SERVER);
371 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Always fail and
561
    if(quit_now){
562
      return -1;
563
    }
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
564
  } while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
565
  if(ret != GNUTLS_E_SUCCESS){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
566
    fprintf_plus(stderr,
567
		 "Error in GnuTLS session initialization: %s\n",
568
		 safer_gnutls_strerror(ret));
13 by Björn Påhlsson
Added following support:
569
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
570
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
571
  {
572
    const char *err;
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
573
    do {
574
      ret = gnutls_priority_set_direct(*session, mc.priority, &err);
371 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Always fail and
575
      if(quit_now){
576
	gnutls_deinit(*session);
577
	return -1;
578
      }
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
579
    } while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
580
    if(ret != GNUTLS_E_SUCCESS){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
581
      fprintf_plus(stderr, "Syntax error at: %s\n", err);
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
582
      fprintf_plus(stderr, "GnuTLS error: %s\n",
583
		   safer_gnutls_strerror(ret));
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
584
      gnutls_deinit(*session);
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
585
      return -1;
586
    }
13 by Björn Påhlsson
Added following support:
587
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
588
  
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
589
  do {
590
    ret = gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE,
591
				 mc.cred);
371 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Always fail and
592
    if(quit_now){
593
      gnutls_deinit(*session);
594
      return -1;
595
    }
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
596
  } while(ret == GNUTLS_E_INTERRUPTED or ret == GNUTLS_E_AGAIN);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
597
  if(ret != GNUTLS_E_SUCCESS){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
598
    fprintf_plus(stderr, "Error setting GnuTLS credentials: %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
599
		 safer_gnutls_strerror(ret));
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
600
    gnutls_deinit(*session);
13 by Björn Påhlsson
Added following support:
601
    return -1;
602
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
603
  
13 by Björn Påhlsson
Added following support:
604
  /* ignore client certificate if any. */
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
605
  gnutls_certificate_server_set_request(*session, GNUTLS_CERT_IGNORE);
13 by Björn Påhlsson
Added following support:
606
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
607
  gnutls_dh_set_prime_bits(*session, mc.dh_bits);
13 by Björn Påhlsson
Added following support:
608
  
609
  return 0;
610
}
611
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
612
/* Avahi log function callback */
36 by Teddy Hogeborn
* TODO: Converted to org-mode style
613
static void empty_log(__attribute__((unused)) AvahiLogLevel level,
614
		      __attribute__((unused)) const char *txt){}
13 by Björn Påhlsson
Added following support:
615
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
616
/* Called when a Mandos server is found */
36 by Teddy Hogeborn
* TODO: Converted to org-mode style
617
static int start_mandos_communication(const char *ip, uint16_t port,
24.1.9 by Björn Påhlsson
not working midwork...
618
				      AvahiIfIndex if_index,
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
619
				      int af){
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
620
  int ret, tcp_sd = -1;
257.1.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
621
  ssize_t sret;
304 by Teddy Hogeborn
Four new interrelated features:
622
  union {
623
    struct sockaddr_in in;
624
    struct sockaddr_in6 in6;
625
  } to;
13 by Björn Påhlsson
Added following support:
626
  char *buffer = NULL;
372 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Bug fix:
627
  char *decrypted_buffer = NULL;
13 by Björn Påhlsson
Added following support:
628
  size_t buffer_length = 0;
629
  size_t buffer_capacity = 0;
24.1.10 by Björn Påhlsson
merge commit
630
  size_t written;
372 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Bug fix:
631
  int retval = -1;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
632
  gnutls_session_t session;
304 by Teddy Hogeborn
Four new interrelated features:
633
  int pf;			/* Protocol family */
634
  
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
635
  errno = 0;
636
  
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
637
  if(quit_now){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
638
    errno = EINTR;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
639
    return -1;
640
  }
641
  
304 by Teddy Hogeborn
Four new interrelated features:
642
  switch(af){
643
  case AF_INET6:
644
    pf = PF_INET6;
645
    break;
646
  case AF_INET:
647
    pf = PF_INET;
648
    break;
649
  default:
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
650
    fprintf_plus(stderr, "Bad address family: %d\n", af);
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
651
    errno = EINVAL;
304 by Teddy Hogeborn
Four new interrelated features:
652
    return -1;
653
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
654
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
655
  ret = init_gnutls_session(&session);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
656
  if(ret != 0){
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
657
    return -1;
658
  }
659
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
660
  if(debug){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
661
    fprintf_plus(stderr, "Setting up a TCP connection to %s, port %"
662
		 PRIu16 "\n", ip, port);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
663
  }
13 by Björn Påhlsson
Added following support:
664
  
304 by Teddy Hogeborn
Four new interrelated features:
665
  tcp_sd = socket(pf, SOCK_STREAM, 0);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
666
  if(tcp_sd < 0){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
667
    int e = errno;
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
668
    perror_plus("socket");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
669
    errno = e;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
670
    goto mandos_end;
671
  }
672
  
673
  if(quit_now){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
674
    errno = EINTR;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
675
    goto mandos_end;
13 by Björn Påhlsson
Added following support:
676
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
677
  
84 by Teddy Hogeborn
* Makefile (DOCBOOKTOMAN): Use the local manpages/docbook.xsl file, do
678
  memset(&to, 0, sizeof(to));
304 by Teddy Hogeborn
Four new interrelated features:
679
  if(af == AF_INET6){
325 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): "sin6_family"
680
    to.in6.sin6_family = (sa_family_t)af;
304 by Teddy Hogeborn
Four new interrelated features:
681
    ret = inet_pton(af, ip, &to.in6.sin6_addr);
682
  } else {			/* IPv4 */
683
    to.in.sin_family = (sa_family_t)af;
684
    ret = inet_pton(af, ip, &to.in.sin_addr);
685
  }
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
686
  if(ret < 0 ){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
687
    int e = errno;
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
688
    perror_plus("inet_pton");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
689
    errno = e;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
690
    goto mandos_end;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
691
  }
13 by Björn Påhlsson
Added following support:
692
  if(ret == 0){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
693
    int e = errno;
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
694
    fprintf_plus(stderr, "Bad address: %s\n", ip);
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
695
    errno = e;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
696
    goto mandos_end;
13 by Björn Påhlsson
Added following support:
697
  }
304 by Teddy Hogeborn
Four new interrelated features:
698
  if(af == AF_INET6){
699
    to.in6.sin6_port = htons(port); /* Spurious warnings from
700
				       -Wconversion and
701
				       -Wunreachable-code */
702
    
703
    if(IN6_IS_ADDR_LINKLOCAL /* Spurious warnings from */
704
       (&to.in6.sin6_addr)){ /* -Wstrict-aliasing=2 or lower and
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
705
				-Wunreachable-code*/
304 by Teddy Hogeborn
Four new interrelated features:
706
      if(if_index == AVAHI_IF_UNSPEC){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
707
	fprintf_plus(stderr, "An IPv6 link-local address is"
708
		     " incomplete without a network interface\n");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
709
	errno = EINVAL;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
710
	goto mandos_end;
304 by Teddy Hogeborn
Four new interrelated features:
711
      }
712
      /* Set the network interface number as scope */
713
      to.in6.sin6_scope_id = (uint32_t)if_index;
714
    }
715
  } else {
716
    to.in.sin_port = htons(port); /* Spurious warnings from
267 by Teddy Hogeborn
* plugins.d/mandos-client.c: Only comment changes.
717
				     -Wconversion and
718
				     -Wunreachable-code */
304 by Teddy Hogeborn
Four new interrelated features:
719
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
720
  
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
721
  if(quit_now){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
722
    errno = EINTR;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
723
    goto mandos_end;
724
  }
725
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
726
  if(debug){
304 by Teddy Hogeborn
Four new interrelated features:
727
    if(af == AF_INET6 and if_index != AVAHI_IF_UNSPEC){
728
      char interface[IF_NAMESIZE];
729
      if(if_indextoname((unsigned int)if_index, interface) == NULL){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
730
	perror_plus("if_indextoname");
304 by Teddy Hogeborn
Four new interrelated features:
731
      } else {
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
732
	fprintf_plus(stderr, "Connection to: %s%%%s, port %" PRIu16
733
		     "\n", ip, interface, port);
304 by Teddy Hogeborn
Four new interrelated features:
734
      }
735
    } else {
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
736
      fprintf_plus(stderr, "Connection to: %s, port %" PRIu16 "\n",
737
		   ip, port);
304 by Teddy Hogeborn
Four new interrelated features:
738
    }
739
    char addrstr[(INET_ADDRSTRLEN > INET6_ADDRSTRLEN) ?
740
		 INET_ADDRSTRLEN : INET6_ADDRSTRLEN] = "";
741
    const char *pcret;
742
    if(af == AF_INET6){
743
      pcret = inet_ntop(af, &(to.in6.sin6_addr), addrstr,
744
			sizeof(addrstr));
745
    } else {
746
      pcret = inet_ntop(af, &(to.in.sin_addr), addrstr,
747
			sizeof(addrstr));
748
    }
749
    if(pcret == NULL){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
750
      perror_plus("inet_ntop");
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
751
    } else {
752
      if(strcmp(addrstr, ip) != 0){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
753
	fprintf_plus(stderr, "Canonical address form: %s\n", addrstr);
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
754
      }
755
    }
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
756
  }
13 by Björn Påhlsson
Added following support:
757
  
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
758
  if(quit_now){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
759
    errno = EINTR;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
760
    goto mandos_end;
761
  }
762
  
304 by Teddy Hogeborn
Four new interrelated features:
763
  if(af == AF_INET6){
764
    ret = connect(tcp_sd, &to.in6, sizeof(to));
765
  } else {
766
    ret = connect(tcp_sd, &to.in, sizeof(to)); /* IPv4 */
767
  }
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
768
  if(ret < 0){
24.1.163 by Björn Påhlsson
mandos-client: Added never ending loop for --connect
769
    if ((errno != ECONNREFUSED and errno != ENETUNREACH) or debug){
770
      int e = errno;
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
771
      perror_plus("connect");
24.1.163 by Björn Påhlsson
mandos-client: Added never ending loop for --connect
772
      errno = e;
773
    }
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
774
    goto mandos_end;
775
  }
776
  
777
  if(quit_now){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
778
    errno = EINTR;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
779
    goto mandos_end;
13 by Björn Påhlsson
Added following support:
780
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
781
  
24.1.12 by Björn Påhlsson
merge +
782
  const char *out = mandos_protocol_version;
24.1.10 by Björn Påhlsson
merge commit
783
  written = 0;
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
784
  while(true){
24.1.10 by Björn Påhlsson
merge commit
785
    size_t out_size = strlen(out);
257.1.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
786
    ret = (int)TEMP_FAILURE_RETRY(write(tcp_sd, out + written,
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
787
					out_size - written));
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
788
    if(ret == -1){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
789
      int e = errno;
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
790
      perror_plus("write");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
791
      errno = e;
24.1.12 by Björn Påhlsson
merge +
792
      goto mandos_end;
24.1.10 by Björn Påhlsson
merge commit
793
    }
24.1.12 by Björn Påhlsson
merge +
794
    written += (size_t)ret;
24.1.10 by Björn Påhlsson
merge commit
795
    if(written < out_size){
796
      continue;
797
    } else {
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
798
      if(out == mandos_protocol_version){
24.1.10 by Björn Påhlsson
merge commit
799
	written = 0;
800
	out = "\r\n";
801
      } else {
802
	break;
803
      }
804
    }
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
805
  
806
    if(quit_now){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
807
      errno = EINTR;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
808
      goto mandos_end;
809
    }
24.1.10 by Björn Påhlsson
merge commit
810
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
811
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
812
  if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
813
    fprintf_plus(stderr, "Establishing TLS session with %s\n", ip);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
814
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
815
  
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
816
  if(quit_now){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
817
    errno = EINTR;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
818
    goto mandos_end;
819
  }
820
  
485 by Teddy Hogeborn
Merge from Björn.
821
  /* Spurious warning from -Wint-to-pointer-cast */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
822
  gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t) tcp_sd);
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
823
  
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
824
  if(quit_now){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
825
    errno = EINTR;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
826
    goto mandos_end;
827
  }
828
  
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
829
  do {
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
830
    ret = gnutls_handshake(session);
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
831
    if(quit_now){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
832
      errno = EINTR;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
833
      goto mandos_end;
834
    }
24.1.29 by Björn Påhlsson
Added more header file comments
835
  } while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
13 by Björn Påhlsson
Added following support:
836
  
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
837
  if(ret != GNUTLS_E_SUCCESS){
25 by Teddy Hogeborn
* mandos-clients.conf ([DEFAULT]): New section.
838
    if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
839
      fprintf_plus(stderr, "*** GnuTLS Handshake failed ***\n");
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
840
      gnutls_perror(ret);
25 by Teddy Hogeborn
* mandos-clients.conf ([DEFAULT]): New section.
841
    }
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
842
    errno = EPROTO;
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
843
    goto mandos_end;
13 by Björn Påhlsson
Added following support:
844
  }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
845
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
846
  /* Read OpenPGP packet that contains the wanted password */
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
847
  
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
848
  if(debug){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
849
    fprintf_plus(stderr, "Retrieving OpenPGP encrypted password from"
850
		 " %s\n", ip);
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
851
  }
143 by Teddy Hogeborn
* Makefile (mandos.8): Add dependency on "overview.xml" and
852
  
13 by Björn Påhlsson
Added following support:
853
  while(true){
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
854
    
855
    if(quit_now){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
856
      errno = EINTR;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
857
      goto mandos_end;
858
    }
859
    
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
860
    buffer_capacity = incbuffer(&buffer, buffer_length,
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
861
				buffer_capacity);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
862
    if(buffer_capacity == 0){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
863
      int e = errno;
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
864
      perror_plus("incbuffer");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
865
      errno = e;
24.1.12 by Björn Påhlsson
merge +
866
      goto mandos_end;
13 by Björn Påhlsson
Added following support:
867
    }
868
    
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
869
    if(quit_now){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
870
      errno = EINTR;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
871
      goto mandos_end;
872
    }
873
    
257.1.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
874
    sret = gnutls_record_recv(session, buffer+buffer_length,
875
			      BUFFER_SIZE);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
876
    if(sret == 0){
13 by Björn Påhlsson
Added following support:
877
      break;
878
    }
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
879
    if(sret < 0){
257.1.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
880
      switch(sret){
13 by Björn Påhlsson
Added following support:
881
      case GNUTLS_E_INTERRUPTED:
882
      case GNUTLS_E_AGAIN:
883
	break;
884
      case GNUTLS_E_REHANDSHAKE:
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
885
	do {
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
886
	  ret = gnutls_handshake(session);
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
887
	  
888
	  if(quit_now){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
889
	    errno = EINTR;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
890
	    goto mandos_end;
891
	  }
24.1.29 by Björn Påhlsson
Added more header file comments
892
	} while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
893
	if(ret < 0){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
894
	  fprintf_plus(stderr, "*** GnuTLS Re-handshake failed "
895
		       "***\n");
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
896
	  gnutls_perror(ret);
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
897
	  errno = EPROTO;
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
898
	  goto mandos_end;
13 by Björn Påhlsson
Added following support:
899
	}
900
	break;
901
      default:
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
902
	fprintf_plus(stderr, "Unknown error while reading data from"
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
903
		     " encrypted session with Mandos server\n");
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
904
	gnutls_bye(session, GNUTLS_SHUT_RDWR);
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
905
	errno = EIO;
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
906
	goto mandos_end;
13 by Björn Påhlsson
Added following support:
907
      }
908
    } else {
257.1.2 by Mooie
Fixed warnings in the 64 bit build. Added explicit cast to int for
909
      buffer_length += (size_t) sret;
13 by Björn Påhlsson
Added following support:
910
    }
911
  }
15.1.1 by Björn Påhlsson
Added debugg support in form off --debug and --debug=mandosclient
912
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
913
  if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
914
    fprintf_plus(stderr, "Closing TLS session\n");
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
915
  }
916
  
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
917
  if(quit_now){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
918
    errno = EINTR;
371 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Always fail and
919
    goto mandos_end;
920
  }
921
  
922
  do {
923
    ret = gnutls_bye(session, GNUTLS_SHUT_RDWR);
924
    if(quit_now){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
925
      errno = EINTR;
371 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Always fail and
926
      goto mandos_end;
927
    }
928
  } while(ret == GNUTLS_E_AGAIN or ret == GNUTLS_E_INTERRUPTED);
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
929
  
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
930
  if(buffer_length > 0){
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
931
    ssize_t decrypted_buffer_size;
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
932
    decrypted_buffer_size = pgp_packet_decrypt(buffer, buffer_length,
24.1.81 by Björn Påhlsson
removed keyring pre-requirement for starting password-request.
933
					       &decrypted_buffer);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
934
    if(decrypted_buffer_size >= 0){
361 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gpgme): Move variable "ret" into the
935
      
24.1.10 by Björn Påhlsson
merge commit
936
      written = 0;
28 by Teddy Hogeborn
* server.conf: New file.
937
      while(written < (size_t) decrypted_buffer_size){
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
938
	if(quit_now){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
939
	  errno = EINTR;
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
940
	  goto mandos_end;
941
	}
942
	
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
943
	ret = (int)fwrite(decrypted_buffer + written, 1,
944
			  (size_t)decrypted_buffer_size - written,
945
			  stdout);
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
946
	if(ret == 0 and ferror(stdout)){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
947
	  int e = errno;
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
948
	  if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
949
	    fprintf_plus(stderr, "Error writing encrypted data: %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
950
			 strerror(errno));
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
951
	  }
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
952
	  errno = e;
372 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Bug fix:
953
	  goto mandos_end;
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
954
	}
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
955
	written += (size_t)ret;
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
956
      }
372 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Bug fix:
957
      retval = 0;
13 by Björn Påhlsson
Added following support:
958
    }
959
  }
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
960
  
961
  /* Shutdown procedure */
962
  
963
 mandos_end:
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
964
  {
965
    int e = errno;
966
    free(decrypted_buffer);
967
    free(buffer);
968
    if(tcp_sd >= 0){
969
      ret = (int)TEMP_FAILURE_RETRY(close(tcp_sd));
970
    }
971
    if(ret == -1){
972
      if(e == 0){
973
	e = errno;
974
      }
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
975
      perror_plus("close");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
976
    }
977
    gnutls_deinit(session);
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
978
    errno = e;
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
979
    if(quit_now){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
980
      errno = EINTR;
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
981
      retval = -1;
982
    }
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
983
  }
13 by Björn Påhlsson
Added following support:
984
  return retval;
985
}
986
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
987
static void resolve_callback(AvahiSServiceResolver *r,
988
			     AvahiIfIndex interface,
304 by Teddy Hogeborn
Four new interrelated features:
989
			     AvahiProtocol proto,
39 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Renamed variables.
990
			     AvahiResolverEvent event,
991
			     const char *name,
992
			     const char *type,
993
			     const char *domain,
994
			     const char *host_name,
995
			     const AvahiAddress *address,
996
			     uint16_t port,
997
			     AVAHI_GCC_UNUSED AvahiStringList *txt,
998
			     AVAHI_GCC_UNUSED AvahiLookupResultFlags
999
			     flags,
307 by Teddy Hogeborn
Merge from Björn:
1000
			     AVAHI_GCC_UNUSED void* userdata){
84 by Teddy Hogeborn
* Makefile (DOCBOOKTOMAN): Use the local manpages/docbook.xsl file, do
1001
  assert(r);
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
1002
  
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
1003
  /* Called whenever a service has been resolved successfully or
1004
     timed out */
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
1005
  
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
1006
  if(quit_now){
1007
    return;
1008
  }
1009
  
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1010
  switch(event){
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
1011
  default:
1012
  case AVAHI_RESOLVER_FAILURE:
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1013
    fprintf_plus(stderr, "(Avahi Resolver) Failed to resolve service "
1014
		 "'%s' of type '%s' in domain '%s': %s\n", name, type,
1015
		 domain,
1016
		 avahi_strerror(avahi_server_errno(mc.server)));
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
1017
    break;
22 by Teddy Hogeborn
* plugins.d/mandosclient.c (pgp_packet_decrypt): Cast "0" argument to
1018
    
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
1019
  case AVAHI_RESOLVER_FOUND:
1020
    {
1021
      char ip[AVAHI_ADDRESS_STR_MAX];
1022
      avahi_address_snprint(ip, sizeof(ip), address);
1023
      if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
1024
	fprintf_plus(stderr, "Mandos server \"%s\" found on %s (%s, %"
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1025
		     PRIdMAX ") on port %" PRIu16 "\n", name,
1026
		     host_name, ip, (intmax_t)interface, port);
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
1027
      }
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
1028
      int ret = start_mandos_communication(ip, port, interface,
304 by Teddy Hogeborn
Four new interrelated features:
1029
					   avahi_proto_to_af(proto));
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
1030
      if(ret == 0){
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
1031
	avahi_simple_poll_quit(mc.simple_poll);
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1032
      } else {
505.1.27 by teddy at bsnet
* plugins.d/mandos-client.c (add_server): Return bool; all callers
1033
	if(not add_server(ip, port, interface,
1034
			  avahi_proto_to_af(proto))){
1035
	  fprintf_plus(stderr, "Failed to add server \"%s\" to server"
1036
		       " list\n", name);
1037
	}
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
1038
      }
13 by Björn Påhlsson
Added following support:
1039
    }
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
1040
  }
1041
  avahi_s_service_resolver_free(r);
13 by Björn Påhlsson
Added following support:
1042
}
1043
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1044
static void browse_callback(AvahiSServiceBrowser *b,
1045
			    AvahiIfIndex interface,
1046
			    AvahiProtocol protocol,
1047
			    AvahiBrowserEvent event,
1048
			    const char *name,
1049
			    const char *type,
1050
			    const char *domain,
1051
			    AVAHI_GCC_UNUSED AvahiLookupResultFlags
1052
			    flags,
307 by Teddy Hogeborn
Merge from Björn:
1053
			    AVAHI_GCC_UNUSED void* userdata){
84 by Teddy Hogeborn
* Makefile (DOCBOOKTOMAN): Use the local manpages/docbook.xsl file, do
1054
  assert(b);
24.1.9 by Björn Påhlsson
not working midwork...
1055
  
1056
  /* Called whenever a new services becomes available on the LAN or
1057
     is removed from the LAN */
1058
  
358 by Teddy Hogeborn
* plugins.d/mandos-client.c (start_mandos_communication): Check
1059
  if(quit_now){
1060
    return;
1061
  }
1062
  
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1063
  switch(event){
24.1.9 by Björn Påhlsson
not working midwork...
1064
  default:
1065
  case AVAHI_BROWSER_FAILURE:
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
1066
    
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
1067
    fprintf_plus(stderr, "(Avahi browser) %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1068
		 avahi_strerror(avahi_server_errno(mc.server)));
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
1069
    avahi_simple_poll_quit(mc.simple_poll);
24.1.9 by Björn Påhlsson
not working midwork...
1070
    return;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
1071
    
24.1.9 by Björn Påhlsson
not working midwork...
1072
  case AVAHI_BROWSER_NEW:
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
1073
    /* We ignore the returned Avahi resolver object. In the callback
1074
       function we free it. If the Avahi server is terminated before
1075
       the callback function is called the Avahi server will free the
1076
       resolver for us. */
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
1077
    
313 by Teddy Hogeborn
* plugins.d/mandos-client.c (browse_callback, main): Do not require
1078
    if(avahi_s_service_resolver_new(mc.server, interface, protocol,
1079
				    name, type, domain, protocol, 0,
1080
				    resolve_callback, NULL) == NULL)
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1081
      fprintf_plus(stderr, "Avahi: Failed to resolve service '%s':"
1082
		   " %s\n", name,
1083
		   avahi_strerror(avahi_server_errno(mc.server)));
24.1.9 by Björn Påhlsson
not working midwork...
1084
    break;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
1085
    
24.1.9 by Björn Påhlsson
not working midwork...
1086
  case AVAHI_BROWSER_REMOVE:
1087
    break;
38 by Teddy Hogeborn
* plugbasedclient.c (main): New "--userid" and "--groupid" options.
1088
    
24.1.9 by Björn Påhlsson
not working midwork...
1089
  case AVAHI_BROWSER_ALL_FOR_NOW:
1090
  case AVAHI_BROWSER_CACHE_EXHAUSTED:
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
1091
    if(debug){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1092
      fprintf_plus(stderr, "No Mandos server found, still"
1093
		   " searching...\n");
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
1094
    }
24.1.9 by Björn Påhlsson
not working midwork...
1095
    break;
1096
  }
13 by Björn Påhlsson
Added following support:
1097
}
1098
485 by Teddy Hogeborn
Merge from Björn.
1099
/* Signal handler that stops main loop after SIGTERM */
354 by Teddy Hogeborn
* plugins.d/mandos-client.c (signal_received): New.
1100
static void handle_sigterm(int sig){
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1101
  if(quit_now){
1102
    return;
1103
  }
1104
  quit_now = 1;
354 by Teddy Hogeborn
* plugins.d/mandos-client.c (signal_received): New.
1105
  signal_received = sig;
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
1106
  int old_errno = errno;
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1107
  /* set main loop to exit */
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1108
  if(mc.simple_poll != NULL){
1109
    avahi_simple_poll_quit(mc.simple_poll);
1110
  }
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
1111
  errno = old_errno;
1112
}
1113
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1114
bool get_flags(const char *ifname, struct ifreq *ifr){
505.2.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1115
  int ret;
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1116
  
505.2.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1117
  int s = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1118
  if(s < 0){
1119
    perror_plus("socket");
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1120
    return false;
505.2.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1121
  }
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1122
  strcpy(ifr->ifr_name, ifname);
1123
  ret = ioctl(s, SIOCGIFFLAGS, ifr);
505.2.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1124
  if(ret == -1){
237.2.34 by teddy at bsnet
* plugins.d/mandos-client.c: Added debug output.
1125
    if(debug){
505.2.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1126
      perror_plus("ioctl SIOCGIFFLAGS");
237.2.34 by teddy at bsnet
* plugins.d/mandos-client.c: Added debug output.
1127
    }
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1128
    return false;
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1129
  }
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1130
  return true;
1131
}
1132
1133
bool good_flags(const char *ifname, const struct ifreq *ifr){
1134
  
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1135
  /* Reject the loopback device */
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1136
  if(ifr->ifr_flags & IFF_LOOPBACK){
237.2.34 by teddy at bsnet
* plugins.d/mandos-client.c: Added debug output.
1137
    if(debug){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1138
      fprintf_plus(stderr, "Rejecting loopback interface \"%s\"\n",
1139
		   ifname);
237.2.34 by teddy at bsnet
* plugins.d/mandos-client.c: Added debug output.
1140
    }
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1141
    return false;
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1142
  }
1143
  /* Accept point-to-point devices only if connect_to is specified */
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1144
  if(connect_to != NULL and (ifr->ifr_flags & IFF_POINTOPOINT)){
237.2.34 by teddy at bsnet
* plugins.d/mandos-client.c: Added debug output.
1145
    if(debug){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1146
      fprintf_plus(stderr, "Accepting point-to-point interface"
1147
		   " \"%s\"\n", ifname);
237.2.34 by teddy at bsnet
* plugins.d/mandos-client.c: Added debug output.
1148
    }
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1149
    return true;
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1150
  }
1151
  /* Otherwise, reject non-broadcast-capable devices */
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1152
  if(not (ifr->ifr_flags & IFF_BROADCAST)){
237.2.34 by teddy at bsnet
* plugins.d/mandos-client.c: Added debug output.
1153
    if(debug){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1154
      fprintf_plus(stderr, "Rejecting non-broadcast interface"
1155
		   " \"%s\"\n", ifname);
237.2.34 by teddy at bsnet
* plugins.d/mandos-client.c: Added debug output.
1156
    }
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1157
    return false;
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1158
  }
481 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Reject non-ARP
1159
  /* Reject non-ARP interfaces (including dummy interfaces) */
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1160
  if(ifr->ifr_flags & IFF_NOARP){
481 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Reject non-ARP
1161
    if(debug){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1162
      fprintf_plus(stderr, "Rejecting non-ARP interface \"%s\"\n",
1163
		   ifname);
481 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Reject non-ARP
1164
    }
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1165
    return false;
481 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Reject non-ARP
1166
  }
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1167
  
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1168
  /* Accept this device */
237.2.34 by teddy at bsnet
* plugins.d/mandos-client.c: Added debug output.
1169
  if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
1170
    fprintf_plus(stderr, "Interface \"%s\" is good\n", ifname);
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1171
  }
1172
  return true;
1173
}
1174
1175
/* 
1176
 * This function determines if a directory entry in /sys/class/net
1177
 * corresponds to an acceptable network device.
1178
 * (This function is passed to scandir(3) as a filter function.)
1179
 */
1180
int good_interface(const struct dirent *if_entry){
1181
  if(if_entry->d_name[0] == '.'){
1182
    return 0;
1183
  }
505.3.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Add error message.
1184
  
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1185
  struct ifreq ifr;
1186
  if(not get_flags(if_entry->d_name, &ifr)){
505.3.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Add error message.
1187
    if(debug){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1188
      fprintf_plus(stderr, "Failed to get flags for interface "
1189
		   "\"%s\"\n", if_entry->d_name);
505.3.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Add error message.
1190
    }
505.2.2 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Use SIOCGIFFLAGS instead
1191
    return 0;
1192
  }
1193
  
1194
  if(not good_flags(if_entry->d_name, &ifr)){
1195
    return 0;
237.2.34 by teddy at bsnet
* plugins.d/mandos-client.c: Added debug output.
1196
  }
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1197
  return 1;
1198
}
1199
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
1200
/* 
1201
 * This function determines if a directory entry in /sys/class/net
1202
 * corresponds to an acceptable network device which is up.
1203
 * (This function is passed to scandir(3) as a filter function.)
1204
 */
1205
int up_interface(const struct dirent *if_entry){
1206
  if(if_entry->d_name[0] == '.'){
1207
    return 0;
1208
  }
505.3.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Add error message.
1209
  
1210
  struct ifreq ifr;
1211
  if(not get_flags(if_entry->d_name, &ifr)){
1212
    if(debug){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1213
      fprintf_plus(stderr, "Failed to get flags for interface "
1214
		   "\"%s\"\n", if_entry->d_name);
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
1215
    }
1216
    return 0;
1217
  }
505.3.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Add error message.
1218
  
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
1219
  /* Reject down interfaces */
505.3.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Add error message.
1220
  if(not (ifr.ifr_flags & IFF_UP)){
1221
    if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
1222
      fprintf_plus(stderr, "Rejecting down interface \"%s\"\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1223
		   if_entry->d_name);
505.3.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Add error message.
1224
    }
1225
    return 0;
1226
  }
1227
  
1228
  /* Reject non-running interfaces */
1229
  if(not (ifr.ifr_flags & IFF_RUNNING)){
1230
    if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
1231
      fprintf_plus(stderr, "Rejecting non-running interface \"%s\"\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1232
		   if_entry->d_name);
505.3.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Add error message.
1233
    }
1234
    return 0;
1235
  }
1236
  
1237
  if(not good_flags(if_entry->d_name, &ifr)){
1238
    return 0;
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
1239
  }
1240
  return 1;
1241
}
1242
24.1.172 by Björn Påhlsson
using scandir instead of readdir
1243
int notdotentries(const struct dirent *direntry){
1244
  /* Skip "." and ".." */
1245
  if(direntry->d_name[0] == '.'
1246
     and (direntry->d_name[1] == '\0'
1247
	  or (direntry->d_name[1] == '.'
1248
	      and direntry->d_name[2] == '\0'))){
1249
    return 0;
1250
  }
1251
  return 1;
1252
}
1253
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
1254
/* Is this directory entry a runnable program? */
1255
int runnable_hook(const struct dirent *direntry){
1256
  int ret;
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
1257
  size_t sret;
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
1258
  struct stat st;
1259
  
1260
  if((direntry->d_name)[0] == '\0'){
1261
    /* Empty name? */
1262
    return 0;
1263
  }
1264
  
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
1265
  sret = strspn(direntry->d_name, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
1266
		"abcdefghijklmnopqrstuvwxyz"
1267
		"0123456789"
1268
		"_-");
1269
  if((direntry->d_name)[sret] != '\0'){
1270
    /* Contains non-allowed characters */
1271
    if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
1272
      fprintf_plus(stderr, "Ignoring hook \"%s\" with bad name\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1273
		   direntry->d_name);
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
1274
    }
1275
    return 0;
1276
  }
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
1277
  
505.3.4 by teddy at bsnet
* plugins.d/mandos-client.c (runnable_hook): Bug fix: stat using the
1278
  char *fullname = NULL;
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
1279
  ret = asprintf(&fullname, "%s/%s", hookdir, direntry->d_name);
505.3.4 by teddy at bsnet
* plugins.d/mandos-client.c (runnable_hook): Bug fix: stat using the
1280
  if(ret < 0){
1281
    perror_plus("asprintf");
1282
    return 0;
1283
  }
1284
  
1285
  ret = stat(fullname, &st);
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
1286
  if(ret == -1){
1287
    if(debug){
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
1288
      perror_plus("Could not stat hook");
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
1289
    }
1290
    return 0;
1291
  }
505.3.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Add error message.
1292
  if(not (S_ISREG(st.st_mode))){
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
1293
    /* Not a regular file */
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
1294
    if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
1295
      fprintf_plus(stderr, "Ignoring hook \"%s\" - not a file\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1296
		   direntry->d_name);
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
1297
    }
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
1298
    return 0;
1299
  }
1300
  if(not (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))){
1301
    /* Not executable */
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
1302
    if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
1303
      fprintf_plus(stderr, "Ignoring hook \"%s\" - not executable\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1304
		   direntry->d_name);
505.3.6 by teddy at bsnet
* plugins.d/mandos-client.c: Some white space fixes.
1305
    }
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
1306
    return 0;
1307
  }
505.3.12 by Teddy Hogeborn
* plugins.d/mandos-client.c (runnable_hook): Add debug output.
1308
  if(debug){
1309
    fprintf_plus(stderr, "Hook \"%s\" is acceptable\n",
1310
		 direntry->d_name);
1311
  }
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
1312
  return 1;
1313
}
1314
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1315
int avahi_loop_with_timeout(AvahiSimplePoll *s, int retry_interval){
1316
  int ret;
1317
  struct timespec now;
1318
  struct timespec waited_time;
1319
  intmax_t block_time;
491 by teddy at bsnet
* plugins.d/mandos-client.c (avahi_loop_with_timeout): Fix warning.
1320
  
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1321
  while(true){
1322
    if(mc.current_server == NULL){
1323
      if (debug){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1324
	fprintf_plus(stderr, "Wait until first server is found."
1325
		     " No timeout!\n");
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1326
      }
1327
      ret = avahi_simple_poll_iterate(s, -1);
1328
    } else {
1329
      if (debug){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1330
	fprintf_plus(stderr, "Check current_server if we should run"
1331
		     " it, or wait\n");
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1332
      }
1333
      /* the current time */
1334
      ret = clock_gettime(CLOCK_MONOTONIC, &now);
1335
      if(ret == -1){
1336
	perror_plus("clock_gettime");
1337
	return -1;
1338
      }
1339
      /* Calculating in ms how long time between now and server
1340
	 who we visted longest time ago. Now - last seen.  */
485 by Teddy Hogeborn
Merge from Björn.
1341
      waited_time.tv_sec = (now.tv_sec
1342
			    - mc.current_server->last_seen.tv_sec);
1343
      waited_time.tv_nsec = (now.tv_nsec
1344
			     - mc.current_server->last_seen.tv_nsec);
1345
      /* total time is 10s/10,000ms.
1346
	 Converting to s from ms by dividing by 1,000,
1347
	 and ns to ms by dividing by 1,000,000. */
1348
      block_time = ((retry_interval
1349
		     - ((intmax_t)waited_time.tv_sec * 1000))
1350
		    - ((intmax_t)waited_time.tv_nsec / 1000000));
491 by teddy at bsnet
* plugins.d/mandos-client.c (avahi_loop_with_timeout): Fix warning.
1351
      
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1352
      if (debug){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1353
	fprintf_plus(stderr, "Blocking for %" PRIdMAX " ms\n",
1354
		     block_time);
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1355
      }
491 by teddy at bsnet
* plugins.d/mandos-client.c (avahi_loop_with_timeout): Fix warning.
1356
      
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1357
      if(block_time <= 0){
1358
	ret = start_mandos_communication(mc.current_server->ip,
485 by Teddy Hogeborn
Merge from Björn.
1359
					 mc.current_server->port,
1360
					 mc.current_server->if_index,
1361
					 mc.current_server->af);
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1362
	if(ret == 0){
1363
	  avahi_simple_poll_quit(mc.simple_poll);
1364
	  return 0;
1365
	}
485 by Teddy Hogeborn
Merge from Björn.
1366
	ret = clock_gettime(CLOCK_MONOTONIC,
1367
			    &mc.current_server->last_seen);
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1368
	if(ret == -1){
1369
	  perror_plus("clock_gettime");
1370
	  return -1;
1371
	}
1372
	mc.current_server = mc.current_server->next;
485 by Teddy Hogeborn
Merge from Björn.
1373
	block_time = 0; 	/* Call avahi to find new Mandos
1374
				   servers, but don't block */
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1375
      }
1376
      
1377
      ret = avahi_simple_poll_iterate(s, (int)block_time);
1378
    }
1379
    if(ret != 0){
505.3.3 by teddy at bsnet
* plugins.d/mandos-client.c: Prefix all printouts with "Mandos plugin
1380
      if (ret > 0 or errno != EINTR){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1381
	return (ret != 1) ? ret : 0;
1382
      }
1383
    }
1384
  }
1385
}
1386
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
1387
bool run_network_hooks(const char *mode, const char *interface,
1388
		       const float delay){
1389
  struct dirent **direntries;
1390
  struct dirent *direntry;
1391
  int ret;
1392
  int numhooks = scandir(hookdir, &direntries, runnable_hook,
1393
			 alphasort);
1394
  if(numhooks == -1){
1395
    perror_plus("scandir");
1396
  } else {
1397
    int devnull = open("/dev/null", O_RDONLY);
1398
    for(int i = 0; i < numhooks; i++){
505.3.11 by Teddy Hogeborn
* Makefile (run-client): Add "--network-hook-dir" option.
1399
      direntry = direntries[i];
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
1400
      char *fullname = NULL;
1401
      ret = asprintf(&fullname, "%s/%s", hookdir, direntry->d_name);
1402
      if(ret < 0){
1403
	perror_plus("asprintf");
1404
	continue;
1405
      }
505.3.11 by Teddy Hogeborn
* Makefile (run-client): Add "--network-hook-dir" option.
1406
      if(debug){
1407
	fprintf_plus(stderr, "Running network hook \"%s\"\n",
1408
		     direntry->d_name);
1409
      }
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
1410
      pid_t hook_pid = fork();
1411
      if(hook_pid == 0){
1412
	/* Child */
505.3.16 by teddy at bsnet
* network-hooks.d/bridge: Use "/usr/sbin/brctl" explicitly.
1413
	/* Raise privileges */
1414
	errno = 0;
1415
	ret = seteuid(0);
1416
	if(ret == -1){
1417
	  perror_plus("seteuid");
1418
	}
1419
	/* Raise privileges even more */
1420
	errno = 0;
1421
	ret = setuid(0);
1422
	if(ret == -1){
1423
	  perror_plus("setuid");
1424
	}
1425
	/* Set group */
1426
	errno = 0;
1427
	ret = setgid(0);
1428
	if(ret == -1){
1429
	  perror_plus("setgid");
1430
	}
1431
	/* Reset supplementary groups */
1432
	errno = 0;
1433
	ret = setgroups(0, NULL);
1434
	if(ret == -1){
1435
	  perror_plus("setgroups");
1436
	}
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
1437
	dup2(devnull, STDIN_FILENO);
1438
	close(devnull);
1439
	dup2(STDERR_FILENO, STDOUT_FILENO);
1440
	ret = setenv("MANDOSNETHOOKDIR", hookdir, 1);
1441
	if(ret == -1){
1442
	  perror_plus("setenv");
505.3.15 by teddy at bsnet
* plugins.d/mandos-client.c (run_network_hooks): Do _exit() on failure
1443
	  _exit(EX_OSERR);
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
1444
	}
1445
	ret = setenv("DEVICE", interface, 1);
1446
	if(ret == -1){
1447
	  perror_plus("setenv");
505.3.15 by teddy at bsnet
* plugins.d/mandos-client.c (run_network_hooks): Do _exit() on failure
1448
	  _exit(EX_OSERR);
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
1449
	}
1450
	ret = setenv("VERBOSE", debug ? "1" : "0", 1);
1451
	if(ret == -1){
1452
	  perror_plus("setenv");
505.3.15 by teddy at bsnet
* plugins.d/mandos-client.c (run_network_hooks): Do _exit() on failure
1453
	  _exit(EX_OSERR);
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
1454
	}
1455
	ret = setenv("MODE", mode, 1);
1456
	if(ret == -1){
1457
	  perror_plus("setenv");
505.3.15 by teddy at bsnet
* plugins.d/mandos-client.c (run_network_hooks): Do _exit() on failure
1458
	  _exit(EX_OSERR);
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
1459
	}
1460
	char *delaystring;
1461
	ret = asprintf(&delaystring, "%f", delay);
1462
	if(ret == -1){
1463
	  perror_plus("asprintf");
505.3.15 by teddy at bsnet
* plugins.d/mandos-client.c (run_network_hooks): Do _exit() on failure
1464
	  _exit(EX_OSERR);
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
1465
	}
1466
	ret = setenv("DELAY", delaystring, 1);
1467
	if(ret == -1){
1468
	  free(delaystring);
1469
	  perror_plus("setenv");
505.3.15 by teddy at bsnet
* plugins.d/mandos-client.c (run_network_hooks): Do _exit() on failure
1470
	  _exit(EX_OSERR);
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
1471
	}
1472
	free(delaystring);
1473
	ret = execl(fullname, direntry->d_name, mode, NULL);
1474
	perror_plus("execl");
1475
      } else {
1476
	int status;
1477
	if(TEMP_FAILURE_RETRY(waitpid(hook_pid, &status, 0)) == -1){
1478
	  perror_plus("waitpid");
1479
	  free(fullname);
1480
	  continue;
1481
	}
1482
	if(WIFEXITED(status)){
1483
	  if(WEXITSTATUS(status) != 0){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1484
	    fprintf_plus(stderr, "Warning: network hook \"%s\" exited"
1485
			 " with status %d\n", direntry->d_name,
1486
			 WEXITSTATUS(status));
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
1487
	    free(fullname);
1488
	    continue;
1489
	  }
1490
	} else if(WIFSIGNALED(status)){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1491
	  fprintf_plus(stderr, "Warning: network hook \"%s\" died by"
1492
		       " signal %d\n", direntry->d_name,
1493
		       WTERMSIG(status));
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
1494
	  free(fullname);
1495
	  continue;
1496
	} else {
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1497
	  fprintf_plus(stderr, "Warning: network hook \"%s\""
1498
		       " crashed\n", direntry->d_name);
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
1499
	  free(fullname);
1500
	  continue;
1501
	}
1502
      }
1503
      free(fullname);
505.3.12 by Teddy Hogeborn
* plugins.d/mandos-client.c (runnable_hook): Add debug output.
1504
      if(debug){
1505
	fprintf_plus(stderr, "Network hook \"%s\" ran successfully\n",
1506
		     direntry->d_name);
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
1507
      }
1508
    }
1509
    close(devnull);
1510
  }
1511
  return true;
1512
}
1513
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
1514
int main(int argc, char *argv[]){
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1515
  AvahiSServiceBrowser *sb = NULL;
1516
  int error;
1517
  int ret;
1518
  intmax_t tmpmax;
311 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
1519
  char *tmp;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1520
  int exitcode = EXIT_SUCCESS;
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1521
  const char *interface = "";
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1522
  struct ifreq network;
350 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Take down network interface on
1523
  int sd = -1;
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
1524
  bool take_down_interface = false;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1525
  uid_t uid;
1526
  gid_t gid;
1527
  char tempdir[] = "/tmp/mandosXXXXXX";
1528
  bool tempdir_created = false;
1529
  AvahiIfIndex if_index = AVAHI_IF_UNSPEC;
1530
  const char *seckey = PATHDIR "/" SECKEY;
1531
  const char *pubkey = PATHDIR "/" PUBKEY;
1532
  
1533
  bool gnutls_initialized = false;
1534
  bool gpgme_initialized = false;
311 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
1535
  float delay = 2.5f;
485 by Teddy Hogeborn
Merge from Björn.
1536
  double retry_interval = 10; /* 10s between trying a server and
1537
				 retrying the same server again */
311 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
1538
  
369 by Teddy Hogeborn
* init.d-mandos (Required-Start, Required-Stop): Bug fix: Added
1539
  struct sigaction old_sigterm_action = { .sa_handler = SIG_DFL };
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
1540
  struct sigaction sigterm_action = { .sa_handler = handle_sigterm };
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1541
  
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
1542
  uid = getuid();
1543
  gid = getgid();
1544
  
1545
  /* Lower any group privileges we might have, just to be safe */
1546
  errno = 0;
1547
  ret = setgid(gid);
1548
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1549
    perror_plus("setgid");
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
1550
  }
1551
  
1552
  /* Lower user privileges (temporarily) */
1553
  errno = 0;
1554
  ret = seteuid(uid);
1555
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1556
    perror_plus("seteuid");
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
1557
  }
1558
  
1559
  if(quit_now){
1560
    goto end;
1561
  }
1562
  
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1563
  {
1564
    struct argp_option options[] = {
1565
      { .name = "debug", .key = 128,
1566
	.doc = "Debug mode", .group = 3 },
1567
      { .name = "connect", .key = 'c',
1568
	.arg = "ADDRESS:PORT",
1569
	.doc = "Connect directly to a specific Mandos server",
1570
	.group = 1 },
1571
      { .name = "interface", .key = 'i',
1572
	.arg = "NAME",
304 by Teddy Hogeborn
Four new interrelated features:
1573
	.doc = "Network interface that will be used to search for"
1574
	" Mandos servers",
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1575
	.group = 1 },
1576
      { .name = "seckey", .key = 's',
1577
	.arg = "FILE",
1578
	.doc = "OpenPGP secret key file base name",
1579
	.group = 1 },
1580
      { .name = "pubkey", .key = 'p',
1581
	.arg = "FILE",
1582
	.doc = "OpenPGP public key file base name",
1583
	.group = 2 },
1584
      { .name = "dh-bits", .key = 129,
1585
	.arg = "BITS",
1586
	.doc = "Bit length of the prime number used in the"
1587
	" Diffie-Hellman key exchange",
1588
	.group = 2 },
1589
      { .name = "priority", .key = 130,
1590
	.arg = "STRING",
1591
	.doc = "GnuTLS priority string for the TLS handshake",
1592
	.group = 1 },
1593
      { .name = "delay", .key = 131,
1594
	.arg = "SECONDS",
1595
	.doc = "Maximum delay to wait for interface startup",
1596
	.group = 2 },
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1597
      { .name = "retry", .key = 132,
1598
	.arg = "SECONDS",
1599
	.doc = "Retry interval used when denied by the mandos server",
1600
	.group = 2 },
505.3.4 by teddy at bsnet
* plugins.d/mandos-client.c (runnable_hook): Bug fix: stat using the
1601
      { .name = "network-hook-dir", .key = 133,
1602
	.arg = "DIR",
1603
	.doc = "Directory where network hooks are located",
1604
	.group = 2 },
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
1605
      /*
1606
       * These reproduce what we would get without ARGP_NO_HELP
1607
       */
1608
      { .name = "help", .key = '?',
1609
	.doc = "Give this help list", .group = -1 },
1610
      { .name = "usage", .key = -3,
1611
	.doc = "Give a short usage message", .group = -1 },
1612
      { .name = "version", .key = 'V',
1613
	.doc = "Print program version", .group = -1 },
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1614
      { .name = NULL }
1615
    };
1616
    
1617
    error_t parse_opt(int key, char *arg,
1618
		      struct argp_state *state){
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
1619
      errno = 0;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1620
      switch(key){
1621
      case 128:			/* --debug */
1622
	debug = true;
1623
	break;
1624
      case 'c':			/* --connect */
1625
	connect_to = arg;
1626
	break;
1627
      case 'i':			/* --interface */
1628
	interface = arg;
1629
	break;
1630
      case 's':			/* --seckey */
1631
	seckey = arg;
1632
	break;
1633
      case 'p':			/* --pubkey */
1634
	pubkey = arg;
1635
	break;
1636
      case 129:			/* --dh-bits */
311 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
1637
	errno = 0;
1638
	tmpmax = strtoimax(arg, &tmp, 10);
1639
	if(errno != 0 or tmp == arg or *tmp != '\0'
1640
	   or tmpmax != (typeof(mc.dh_bits))tmpmax){
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
1641
	  argp_error(state, "Bad number of DH bits");
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1642
	}
1643
	mc.dh_bits = (typeof(mc.dh_bits))tmpmax;
1644
	break;
1645
      case 130:			/* --priority */
1646
	mc.priority = arg;
1647
	break;
1648
      case 131:			/* --delay */
311 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
1649
	errno = 0;
1650
	delay = strtof(arg, &tmp);
1651
	if(errno != 0 or tmp == arg or *tmp != '\0'){
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
1652
	  argp_error(state, "Bad delay");
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1653
	}
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1654
      case 132:			/* --retry */
1655
	errno = 0;
1656
	retry_interval = strtod(arg, &tmp);
1657
	if(errno != 0 or tmp == arg or *tmp != '\0'
491 by teddy at bsnet
* plugins.d/mandos-client.c (avahi_loop_with_timeout): Fix warning.
1658
	   or (retry_interval * 1000) > INT_MAX
1659
	   or retry_interval < 0){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1660
	  argp_error(state, "Bad retry interval");
1661
	}
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1662
	break;
505.3.4 by teddy at bsnet
* plugins.d/mandos-client.c (runnable_hook): Bug fix: stat using the
1663
      case 133:			/* --network-hook-dir */
1664
	hookdir = arg;
1665
	break;
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
1666
	/*
1667
	 * These reproduce what we would get without ARGP_NO_HELP
1668
	 */
1669
      case '?':			/* --help */
1670
	argp_state_help(state, state->out_stream,
1671
			(ARGP_HELP_STD_HELP | ARGP_HELP_EXIT_ERR)
1672
			& ~(unsigned int)ARGP_HELP_EXIT_OK);
1673
      case -3:			/* --usage */
1674
	argp_state_help(state, state->out_stream,
1675
			ARGP_HELP_USAGE | ARGP_HELP_EXIT_ERR);
1676
      case 'V':			/* --version */
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
1677
	fprintf_plus(state->out_stream, "%s\n", argp_program_version);
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
1678
	exit(argp_err_exit_status);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1679
	break;
1680
      default:
1681
	return ARGP_ERR_UNKNOWN;
1682
      }
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
1683
      return errno;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1684
    }
1685
    
1686
    struct argp argp = { .options = options, .parser = parse_opt,
1687
			 .args_doc = "",
1688
			 .doc = "Mandos client -- Get and decrypt"
1689
			 " passwords from a Mandos server" };
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
1690
    ret = argp_parse(&argp, argc, argv,
1691
		     ARGP_IN_ORDER | ARGP_NO_HELP, 0, NULL);
1692
    switch(ret){
1693
    case 0:
1694
      break;
1695
    case ENOMEM:
1696
    default:
1697
      errno = ret;
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1698
      perror_plus("argp_parse");
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
1699
      exitcode = EX_OSERR;
1700
      goto end;
1701
    case EINVAL:
1702
      exitcode = EX_USAGE;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1703
      goto end;
1704
    }
1705
  }
487 by Teddy Hogeborn
* initramfs-tools-script: Abort if plugin-runner is missing. Removed
1706
    
505.3.16 by teddy at bsnet
* network-hooks.d/bridge: Use "/usr/sbin/brctl" explicitly.
1707
  {
487 by Teddy Hogeborn
* initramfs-tools-script: Abort if plugin-runner is missing. Removed
1708
    /* Work around Debian bug #633582:
1709
       <http://bugs.debian.org/633582> */
1710
    
1711
    /* Re-raise priviliges */
1712
    errno = 0;
1713
    ret = seteuid(0);
1714
    if(ret == -1){
1715
      perror_plus("seteuid");
505.3.16 by teddy at bsnet
* network-hooks.d/bridge: Use "/usr/sbin/brctl" explicitly.
1716
    } else {
1717
      struct stat st;
1718
      
1719
      if(strcmp(seckey, PATHDIR "/" SECKEY) == 0){
1720
	int seckey_fd = open(seckey, O_RDONLY);
1721
	if(seckey_fd == -1){
1722
	  perror_plus("open");
1723
	} else {
1724
	  ret = (int)TEMP_FAILURE_RETRY(fstat(seckey_fd, &st));
1725
	  if(ret == -1){
1726
	    perror_plus("fstat");
1727
	  } else {
1728
	    if(S_ISREG(st.st_mode)
1729
	       and st.st_uid == 0 and st.st_gid == 0){
1730
	      ret = fchown(seckey_fd, uid, gid);
1731
	      if(ret == -1){
1732
		perror_plus("fchown");
1733
	      }
1734
	    }
1735
	  }
1736
	  TEMP_FAILURE_RETRY(close(seckey_fd));
1737
	}
1738
      }
1739
    
1740
      if(strcmp(pubkey, PATHDIR "/" PUBKEY) == 0){
1741
	int pubkey_fd = open(pubkey, O_RDONLY);
1742
	if(pubkey_fd == -1){
1743
	  perror_plus("open");
1744
	} else {
1745
	  ret = (int)TEMP_FAILURE_RETRY(fstat(pubkey_fd, &st));
1746
	  if(ret == -1){
1747
	    perror_plus("fstat");
1748
	  } else {
1749
	    if(S_ISREG(st.st_mode)
1750
	       and st.st_uid == 0 and st.st_gid == 0){
1751
	      ret = fchown(pubkey_fd, uid, gid);
1752
	      if(ret == -1){
1753
		perror_plus("fchown");
1754
	      }
1755
	    }
1756
	  }
1757
	  TEMP_FAILURE_RETRY(close(pubkey_fd));
1758
	}
1759
      }
1760
    
505.3.11 by Teddy Hogeborn
* Makefile (run-client): Add "--network-hook-dir" option.
1761
      /* Lower privileges */
1762
      errno = 0;
1763
      ret = seteuid(uid);
1764
      if(ret == -1){
1765
	perror_plus("seteuid");
1766
      }
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
1767
    }
1768
  }
1769
  
505.3.16 by teddy at bsnet
* network-hooks.d/bridge: Use "/usr/sbin/brctl" explicitly.
1770
  /* Run network hooks */
1771
  if(not run_network_hooks("start", interface, delay)){
1772
    goto end;
1773
  }
1774
  
24.1.135 by Björn Påhlsson
Earlier signal handling
1775
  if(not debug){
1776
    avahi_set_log_function(empty_log);
1777
  }
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
1778
  
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1779
  if(interface[0] == '\0'){
1780
    struct dirent **direntries;
505.3.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Add error message.
1781
    /* First look for interfaces that are up */
1782
    ret = scandir(sys_class_net, &direntries, up_interface,
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1783
		  alphasort);
505.3.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Add error message.
1784
    if(ret == 0){
1785
      /* No up interfaces, look for any good interfaces */
1786
      free(direntries);
1787
      ret = scandir(sys_class_net, &direntries, good_interface,
1788
		    alphasort);
1789
    }
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1790
    if(ret >= 1){
505.3.1 by teddy at bsnet
* plugins.d/mandos-client.c (good_interface): Add error message.
1791
      /* Pick the first interface returned */
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1792
      interface = strdup(direntries[0]->d_name);
237.2.34 by teddy at bsnet
* plugins.d/mandos-client.c: Added debug output.
1793
      if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
1794
	fprintf_plus(stderr, "Using interface \"%s\"\n", interface);
237.2.34 by teddy at bsnet
* plugins.d/mandos-client.c: Added debug output.
1795
      }
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1796
      if(interface == NULL){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1797
	perror_plus("malloc");
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1798
	free(direntries);
1799
	exitcode = EXIT_FAILURE;
1800
	goto end;
1801
      }
1802
      free(direntries);
1803
    } else {
1804
      free(direntries);
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
1805
      fprintf_plus(stderr, "Could not find a network interface\n");
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1806
      exitcode = EXIT_FAILURE;
1807
      goto end;
1808
    }
1809
  }
309 by Teddy Hogeborn
Merge from Björn:
1810
  
24.1.135 by Björn Påhlsson
Earlier signal handling
1811
  /* Initialize Avahi early so avahi_simple_poll_quit() can be called
1812
     from the signal handler */
1813
  /* Initialize the pseudo-RNG for Avahi */
1814
  srand((unsigned int) time(NULL));
1815
  mc.simple_poll = avahi_simple_poll_new();
1816
  if(mc.simple_poll == NULL){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
1817
    fprintf_plus(stderr,
1818
		 "Avahi: Failed to create simple poll object.\n");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1819
    exitcode = EX_UNAVAILABLE;
24.1.135 by Björn Påhlsson
Earlier signal handling
1820
    goto end;
1821
  }
309 by Teddy Hogeborn
Merge from Björn:
1822
  
24.1.135 by Björn Påhlsson
Earlier signal handling
1823
  sigemptyset(&sigterm_action.sa_mask);
309 by Teddy Hogeborn
Merge from Björn:
1824
  ret = sigaddset(&sigterm_action.sa_mask, SIGINT);
1825
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1826
    perror_plus("sigaddset");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1827
    exitcode = EX_OSERR;
309 by Teddy Hogeborn
Merge from Björn:
1828
    goto end;
1829
  }
1830
  ret = sigaddset(&sigterm_action.sa_mask, SIGHUP);
1831
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1832
    perror_plus("sigaddset");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1833
    exitcode = EX_OSERR;
309 by Teddy Hogeborn
Merge from Björn:
1834
    goto end;
1835
  }
24.1.135 by Björn Påhlsson
Earlier signal handling
1836
  ret = sigaddset(&sigterm_action.sa_mask, SIGTERM);
1837
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1838
    perror_plus("sigaddset");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1839
    exitcode = EX_OSERR;
24.1.135 by Björn Påhlsson
Earlier signal handling
1840
    goto end;
1841
  }
357 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Do not handle ignored signals.
1842
  /* Need to check if the handler is SIG_IGN before handling:
1843
     | [[info:libc:Initial Signal Actions]] |
1844
     | [[info:libc:Basic Signal Handling]]  |
1845
  */
1846
  ret = sigaction(SIGINT, NULL, &old_sigterm_action);
1847
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1848
    perror_plus("sigaction");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1849
    return EX_OSERR;
357 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Do not handle ignored signals.
1850
  }
1851
  if(old_sigterm_action.sa_handler != SIG_IGN){
1852
    ret = sigaction(SIGINT, &sigterm_action, NULL);
1853
    if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1854
      perror_plus("sigaction");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1855
      exitcode = EX_OSERR;
357 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Do not handle ignored signals.
1856
      goto end;
1857
    }
1858
  }
1859
  ret = sigaction(SIGHUP, NULL, &old_sigterm_action);
1860
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1861
    perror_plus("sigaction");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1862
    return EX_OSERR;
357 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Do not handle ignored signals.
1863
  }
1864
  if(old_sigterm_action.sa_handler != SIG_IGN){
1865
    ret = sigaction(SIGHUP, &sigterm_action, NULL);
1866
    if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1867
      perror_plus("sigaction");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1868
      exitcode = EX_OSERR;
357 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Do not handle ignored signals.
1869
      goto end;
1870
    }
1871
  }
1872
  ret = sigaction(SIGTERM, NULL, &old_sigterm_action);
1873
  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1874
    perror_plus("sigaction");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1875
    return EX_OSERR;
357 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Do not handle ignored signals.
1876
  }
1877
  if(old_sigterm_action.sa_handler != SIG_IGN){
1878
    ret = sigaction(SIGTERM, &sigterm_action, NULL);
1879
    if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1880
      perror_plus("sigaction");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1881
      exitcode = EX_OSERR;
357 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Do not handle ignored signals.
1882
      goto end;
1883
    }
354 by Teddy Hogeborn
* plugins.d/mandos-client.c (signal_received): New.
1884
  }
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1885
  
1886
  /* If the interface is down, bring it up */
237.2.33 by teddy at bsnet
* plugins.d/mandos-client.c: An empty interface name now means to
1887
  if(strcmp(interface, "none") != 0){
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
1888
    if_index = (AvahiIfIndex) if_nametoindex(interface);
1889
    if(if_index == 0){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
1890
      fprintf_plus(stderr, "No such interface: \"%s\"\n", interface);
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1891
      exitcode = EX_UNAVAILABLE;
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
1892
      goto end;
1893
    }
1894
    
1895
    if(quit_now){
1896
      goto end;
1897
    }
1898
    
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
1899
    /* Re-raise priviliges */
1900
    errno = 0;
1901
    ret = seteuid(0);
1902
    if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1903
      perror_plus("seteuid");
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
1904
    }
1905
    
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1906
#ifdef __linux__
1907
    /* Lower kernel loglevel to KERN_NOTICE to avoid KERN_INFO
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
1908
       messages about the network interface to mess up the prompt */
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1909
    ret = klogctl(8, NULL, 5);
304 by Teddy Hogeborn
Four new interrelated features:
1910
    bool restore_loglevel = true;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1911
    if(ret == -1){
304 by Teddy Hogeborn
Four new interrelated features:
1912
      restore_loglevel = false;
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1913
      perror_plus("klogctl");
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1914
    }
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1915
#endif	/* __linux__ */
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1916
    
1917
    sd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP);
1918
    if(sd < 0){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1919
      perror_plus("socket");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1920
      exitcode = EX_OSERR;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1921
#ifdef __linux__
304 by Teddy Hogeborn
Four new interrelated features:
1922
      if(restore_loglevel){
1923
	ret = klogctl(7, NULL, 0);
1924
	if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1925
	  perror_plus("klogctl");
304 by Teddy Hogeborn
Four new interrelated features:
1926
	}
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1927
      }
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1928
#endif	/* __linux__ */
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
1929
      /* Lower privileges */
1930
      errno = 0;
1931
      ret = seteuid(uid);
1932
      if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1933
	perror_plus("seteuid");
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
1934
      }
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1935
      goto end;
1936
    }
1937
    strcpy(network.ifr_name, interface);
1938
    ret = ioctl(sd, SIOCGIFFLAGS, &network);
1939
    if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1940
      perror_plus("ioctl SIOCGIFFLAGS");
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1941
#ifdef __linux__
304 by Teddy Hogeborn
Four new interrelated features:
1942
      if(restore_loglevel){
1943
	ret = klogctl(7, NULL, 0);
1944
	if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1945
	  perror_plus("klogctl");
304 by Teddy Hogeborn
Four new interrelated features:
1946
	}
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1947
      }
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1948
#endif	/* __linux__ */
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1949
      exitcode = EX_OSERR;
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
1950
      /* Lower privileges */
1951
      errno = 0;
1952
      ret = seteuid(uid);
1953
      if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1954
	perror_plus("seteuid");
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
1955
      }
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1956
      goto end;
1957
    }
1958
    if((network.ifr_flags & IFF_UP) == 0){
1959
      network.ifr_flags |= IFF_UP;
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
1960
      take_down_interface = true;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1961
      ret = ioctl(sd, SIOCSIFFLAGS, &network);
1962
      if(ret == -1){
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
1963
	take_down_interface = false;
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1964
	perror_plus("ioctl SIOCSIFFLAGS +IFF_UP");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1965
	exitcode = EX_OSERR;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1966
#ifdef __linux__
304 by Teddy Hogeborn
Four new interrelated features:
1967
	if(restore_loglevel){
1968
	  ret = klogctl(7, NULL, 0);
1969
	  if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1970
	    perror_plus("klogctl");
304 by Teddy Hogeborn
Four new interrelated features:
1971
	  }
24.1.124 by Björn Påhlsson
Added lower kernel loglevel to reduce clutter on system console.
1972
	}
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
1973
#endif	/* __linux__ */
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
1974
	/* Lower privileges */
1975
	errno = 0;
1976
	ret = seteuid(uid);
1977
	if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1978
	  perror_plus("seteuid");
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
1979
	}
65 by Teddy Hogeborn
* plugins.d/password-request.c (main): Bug fix: Bring up network
1980
	goto end;
1981
      }
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1982
    }
485 by Teddy Hogeborn
Merge from Björn.
1983
    /* Sleep checking until interface is running.
1984
       Check every 0.25s, up to total time of delay */
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1985
    for(int i=0; i < delay * 4; i++){
65 by Teddy Hogeborn
* plugins.d/password-request.c (main): Bug fix: Bring up network
1986
      ret = ioctl(sd, SIOCGIFFLAGS, &network);
1987
      if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1988
	perror_plus("ioctl SIOCGIFFLAGS");
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1989
      } else if(network.ifr_flags & IFF_RUNNING){
1990
	break;
1991
      }
1992
      struct timespec sleeptime = { .tv_nsec = 250000000 };
1993
      ret = nanosleep(&sleeptime, NULL);
1994
      if(ret == -1 and errno != EINTR){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
1995
	perror_plus("nanosleep");
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1996
      }
1997
    }
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
1998
    if(not take_down_interface){
1999
      /* We won't need the socket anymore */
350 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Take down network interface on
2000
      ret = (int)TEMP_FAILURE_RETRY(close(sd));
2001
      if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
2002
	perror_plus("close");
350 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Take down network interface on
2003
      }
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2004
    }
2005
#ifdef __linux__
304 by Teddy Hogeborn
Four new interrelated features:
2006
    if(restore_loglevel){
2007
      /* Restores kernel loglevel to default */
2008
      ret = klogctl(7, NULL, 0);
2009
      if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
2010
	perror_plus("klogctl");
304 by Teddy Hogeborn
Four new interrelated features:
2011
      }
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2012
    }
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
2013
#endif	/* __linux__ */
368 by Teddy Hogeborn
* plugins.d/mandos-client.c (init_gnutls_session): Retry interrupted
2014
    /* Lower privileges */
2015
    errno = 0;
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
2016
    /* Lower privileges */
2017
    ret = seteuid(uid);
2018
    if(ret == -1){
2019
      perror_plus("seteuid");
365 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Bug fix: Check result of setgid().
2020
    }
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2021
  }
2022
  
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
2023
  if(quit_now){
2024
    goto end;
2025
  }
2026
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
2027
  ret = init_gnutls_global(pubkey, seckey);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2028
  if(ret == -1){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
2029
    fprintf_plus(stderr, "init_gnutls_global failed\n");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
2030
    exitcode = EX_UNAVAILABLE;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2031
    goto end;
2032
  } else {
2033
    gnutls_initialized = true;
2034
  }
2035
  
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
2036
  if(quit_now){
2037
    goto end;
2038
  }
2039
  
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2040
  if(mkdtemp(tempdir) == NULL){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
2041
    perror_plus("mkdtemp");
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2042
    goto end;
2043
  }
24.1.172 by Björn Påhlsson
using scandir instead of readdir
2044
  tempdir_created = true;
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
2045
  
2046
  if(quit_now){
2047
    goto end;
2048
  }
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2049
  
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
2050
  if(not init_gpgme(pubkey, seckey, tempdir)){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
2051
    fprintf_plus(stderr, "init_gpgme failed\n");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
2052
    exitcode = EX_UNAVAILABLE;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2053
    goto end;
2054
  } else {
2055
    gpgme_initialized = true;
2056
  }
2057
  
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
2058
  if(quit_now){
2059
    goto end;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2060
  }
2061
  
2062
  if(connect_to != NULL){
2063
    /* Connect directly, do not use Zeroconf */
2064
    /* (Mainly meant for debugging) */
2065
    char *address = strrchr(connect_to, ':');
2066
    if(address == NULL){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
2067
      fprintf_plus(stderr, "No colon in address\n");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
2068
      exitcode = EX_USAGE;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2069
      goto end;
2070
    }
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
2071
    
2072
    if(quit_now){
2073
      goto end;
2074
    }
2075
    
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2076
    uint16_t port;
311 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
2077
    errno = 0;
2078
    tmpmax = strtoimax(address+1, &tmp, 10);
2079
    if(errno != 0 or tmp == address+1 or *tmp != '\0'
2080
       or tmpmax != (uint16_t)tmpmax){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
2081
      fprintf_plus(stderr, "Bad port number\n");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
2082
      exitcode = EX_USAGE;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2083
      goto end;
2084
    }
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
2085
  
2086
    if(quit_now){
2087
      goto end;
2088
    }
2089
    
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2090
    port = (uint16_t)tmpmax;
2091
    *address = '\0';
304 by Teddy Hogeborn
Four new interrelated features:
2092
    /* Colon in address indicates IPv6 */
2093
    int af;
491 by teddy at bsnet
* plugins.d/mandos-client.c (avahi_loop_with_timeout): Fix warning.
2094
    if(strchr(connect_to, ':') != NULL){
304 by Teddy Hogeborn
Four new interrelated features:
2095
      af = AF_INET6;
491 by teddy at bsnet
* plugins.d/mandos-client.c (avahi_loop_with_timeout): Fix warning.
2096
      /* Accept [] around IPv6 address - see RFC 5952 */
2097
      if(connect_to[0] == '[' and address[-1] == ']')
2098
	{
2099
	  connect_to++;
2100
	  address[-1] = '\0';
2101
	}
304 by Teddy Hogeborn
Four new interrelated features:
2102
    } else {
2103
      af = AF_INET;
2104
    }
491 by teddy at bsnet
* plugins.d/mandos-client.c (avahi_loop_with_timeout): Fix warning.
2105
    address = connect_to;
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
2106
    
2107
    if(quit_now){
2108
      goto end;
2109
    }
491 by teddy at bsnet
* plugins.d/mandos-client.c (avahi_loop_with_timeout): Fix warning.
2110
    
24.1.163 by Björn Påhlsson
mandos-client: Added never ending loop for --connect
2111
    while(not quit_now){
2112
      ret = start_mandos_communication(address, port, if_index, af);
2113
      if(quit_now or ret == 0){
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
2114
	break;
2115
      }
491 by teddy at bsnet
* plugins.d/mandos-client.c (avahi_loop_with_timeout): Fix warning.
2116
      if(debug){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
2117
	fprintf_plus(stderr, "Retrying in %d seconds\n",
2118
		     (int)retry_interval);
491 by teddy at bsnet
* plugins.d/mandos-client.c (avahi_loop_with_timeout): Fix warning.
2119
      }
2120
      sleep((int)retry_interval);
492 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Do not even try to work around
2121
    }
2122
    
24.1.163 by Björn Påhlsson
mandos-client: Added never ending loop for --connect
2123
    if (not quit_now){
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2124
      exitcode = EXIT_SUCCESS;
2125
    }
505.2.3 by Teddy Hogeborn
Intermediate commit - this does *not* work yet.
2126
    
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2127
    goto end;
2128
  }
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
2129
  
2130
  if(quit_now){
2131
    goto end;
2132
  }
2133
  
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2134
  {
2135
    AvahiServerConfig config;
2136
    /* Do not publish any local Zeroconf records */
2137
    avahi_server_config_init(&config);
2138
    config.publish_hinfo = 0;
2139
    config.publish_addresses = 0;
2140
    config.publish_workstation = 0;
2141
    config.publish_domain = 0;
2142
    
2143
    /* Allocate a new server */
2144
    mc.server = avahi_server_new(avahi_simple_poll_get
2145
				 (mc.simple_poll), &config, NULL,
2146
				 NULL, &error);
2147
    
2148
    /* Free the Avahi configuration data */
2149
    avahi_server_config_free(&config);
2150
  }
2151
  
2152
  /* Check if creating the Avahi server object succeeded */
2153
  if(mc.server == NULL){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
2154
    fprintf_plus(stderr, "Failed to create Avahi server: %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
2155
		 avahi_strerror(error));
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
2156
    exitcode = EX_UNAVAILABLE;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2157
    goto end;
2158
  }
2159
  
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
2160
  if(quit_now){
2161
    goto end;
2162
  }
2163
  
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2164
  /* Create the Avahi service browser */
2165
  sb = avahi_s_service_browser_new(mc.server, if_index,
313 by Teddy Hogeborn
* plugins.d/mandos-client.c (browse_callback, main): Do not require
2166
				   AVAHI_PROTO_UNSPEC, "_mandos._tcp",
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
2167
				   NULL, 0, browse_callback, NULL);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2168
  if(sb == NULL){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
2169
    fprintf_plus(stderr, "Failed to create service browser: %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
2170
		 avahi_strerror(avahi_server_errno(mc.server)));
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
2171
    exitcode = EX_UNAVAILABLE;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2172
    goto end;
2173
  }
307 by Teddy Hogeborn
Merge from Björn:
2174
  
353 by Teddy Hogeborn
* plugins.d/mandos-client.c (quit_now): Move up declaration before
2175
  if(quit_now){
2176
    goto end;
2177
  }
2178
  
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2179
  /* Run the main loop */
2180
  
2181
  if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
2182
    fprintf_plus(stderr, "Starting Avahi loop search\n");
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2183
  }
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
2184
485 by Teddy Hogeborn
Merge from Björn.
2185
  ret = avahi_loop_with_timeout(mc.simple_poll,
2186
				(int)(retry_interval * 1000));
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
2187
  if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
2188
    fprintf_plus(stderr, "avahi_loop_with_timeout exited %s\n",
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
2189
		 (ret == 0) ? "successfully" : "with error");
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
2190
  }
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2191
  
40 by Teddy Hogeborn
* plugins.d/mandosclient.c (initgnutls): Moved "err" variable into its
2192
 end:
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2193
  
2194
  if(debug){
505.2.6 by Björn Påhlsson
replace calls to fprintf with fprintf_plus.
2195
    fprintf_plus(stderr, "%s exiting\n", argv[0]);
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2196
  }
2197
  
2198
  /* Cleanup things */
2199
  if(sb != NULL)
2200
    avahi_s_service_browser_free(sb);
2201
  
2202
  if(mc.server != NULL)
2203
    avahi_server_free(mc.server);
2204
  
2205
  if(mc.simple_poll != NULL)
2206
    avahi_simple_poll_free(mc.simple_poll);
2207
  
2208
  if(gnutls_initialized){
2209
    gnutls_certificate_free_credentials(mc.cred);
2210
    gnutls_global_deinit();
2211
    gnutls_dh_params_deinit(mc.dh_params);
2212
  }
2213
  
2214
  if(gpgme_initialized){
2215
    gpgme_release(mc.ctx);
2216
  }
505.3.12 by Teddy Hogeborn
* plugins.d/mandos-client.c (runnable_hook): Add debug output.
2217
  
485 by Teddy Hogeborn
Merge from Björn.
2218
  /* Cleans up the circular linked list of Mandos servers the client
2219
     has seen */
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
2220
  if(mc.current_server != NULL){
2221
    mc.current_server->prev->next = NULL;
2222
    while(mc.current_server != NULL){
2223
      server *next = mc.current_server->next;
2224
      free(mc.current_server);
2225
      mc.current_server = next;
2226
    }
2227
  }
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2228
  
505.3.16 by teddy at bsnet
* network-hooks.d/bridge: Use "/usr/sbin/brctl" explicitly.
2229
  /* Run network hooks */
2230
  run_network_hooks("stop", interface, delay);
2231
  
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
2232
  /* Re-raise priviliges */
2233
  {
505.3.16 by teddy at bsnet
* network-hooks.d/bridge: Use "/usr/sbin/brctl" explicitly.
2234
    errno = 0;
2235
    ret = seteuid(0);
2236
    if(ret == -1){
2237
      perror_plus("seteuid");
350 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Take down network interface on
2238
    }
505.3.12 by Teddy Hogeborn
* plugins.d/mandos-client.c (runnable_hook): Add debug output.
2239
    
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
2240
    /* Take down the network interface */
2241
    if(take_down_interface and geteuid() == 0){
365 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Bug fix: Check result of setgid().
2242
      ret = ioctl(sd, SIOCGIFFLAGS, &network);
2243
      if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
2244
	perror_plus("ioctl SIOCGIFFLAGS");
505.3.3 by teddy at bsnet
* plugins.d/mandos-client.c: Prefix all printouts with "Mandos plugin
2245
      } else if(network.ifr_flags & IFF_UP){
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
2246
	network.ifr_flags &= ~(short)IFF_UP; /* clear flag */
365 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Bug fix: Check result of setgid().
2247
	ret = ioctl(sd, SIOCSIFFLAGS, &network);
2248
	if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
2249
	  perror_plus("ioctl SIOCSIFFLAGS -IFF_UP");
365 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Bug fix: Check result of setgid().
2250
	}
2251
      }
2252
      ret = (int)TEMP_FAILURE_RETRY(close(sd));
2253
      if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
2254
	perror_plus("close");
365 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Bug fix: Check result of setgid().
2255
      }
350 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Take down network interface on
2256
    }
2257
  }
505.3.16 by teddy at bsnet
* network-hooks.d/bridge: Use "/usr/sbin/brctl" explicitly.
2258
  /* Lower privileges permanently */
2259
  errno = 0;
2260
  ret = setuid(uid);
2261
  if(ret == -1){
2262
    perror_plus("setuid");
505.3.8 by Teddy Hogeborn
* plugins.d/mandos-client.c (run_network_hooks): New.
2263
  }
350 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Take down network interface on
2264
  
24.1.172 by Björn Påhlsson
using scandir instead of readdir
2265
  /* Removes the GPGME temp directory and all files inside */
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2266
  if(tempdir_created){
24.1.172 by Björn Påhlsson
using scandir instead of readdir
2267
    struct dirent **direntries = NULL;
2268
    struct dirent *direntry = NULL;
492 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Do not even try to work around
2269
    int numentries = scandir(tempdir, &direntries, notdotentries,
2270
			     alphasort);
2271
    if (numentries > 0){
2272
      for(int i = 0; i < numentries; i++){
24.1.172 by Björn Påhlsson
using scandir instead of readdir
2273
	direntry = direntries[i];
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2274
	char *fullname = NULL;
2275
	ret = asprintf(&fullname, "%s/%s", tempdir,
2276
		       direntry->d_name);
2277
	if(ret < 0){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
2278
	  perror_plus("asprintf");
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2279
	  continue;
2280
	}
2281
	ret = remove(fullname);
2282
	if(ret == -1){
505.3.9 by Teddy Hogeborn
* plugins.d/mandos-client.c: Merge unified printing system.
2283
	  fprintf_plus(stderr, "remove(\"%s\"): %s\n", fullname,
2284
		       strerror(errno));
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2285
	}
2286
	free(fullname);
2287
      }
24.1.172 by Björn Påhlsson
using scandir instead of readdir
2288
    }
2289
492 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Do not even try to work around
2290
    /* need to clean even if 0 because man page doesn't specify */
24.1.172 by Björn Påhlsson
using scandir instead of readdir
2291
    free(direntries);
492 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Do not even try to work around
2292
    if (numentries == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
2293
      perror_plus("scandir");
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2294
    }
2295
    ret = rmdir(tempdir);
2296
    if(ret == -1 and errno != ENOENT){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
2297
      perror_plus("rmdir");
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2298
    }
2299
  }
2300
  
354 by Teddy Hogeborn
* plugins.d/mandos-client.c (signal_received): New.
2301
  if(quit_now){
357 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Do not handle ignored signals.
2302
    sigemptyset(&old_sigterm_action.sa_mask);
2303
    old_sigterm_action.sa_handler = SIG_DFL;
374 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Try harder to raise signal on
2304
    ret = (int)TEMP_FAILURE_RETRY(sigaction(signal_received,
2305
					    &old_sigterm_action,
2306
					    NULL));
354 by Teddy Hogeborn
* plugins.d/mandos-client.c (signal_received): New.
2307
    if(ret == -1){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
2308
      perror_plus("sigaction");
354 by Teddy Hogeborn
* plugins.d/mandos-client.c (signal_received): New.
2309
    }
374 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Try harder to raise signal on
2310
    do {
2311
      ret = raise(signal_received);
2312
    } while(ret != 0 and errno == EINTR);
2313
    if(ret != 0){
24.1.174 by Björn Påhlsson
* Makefile (CFLAGS): Added "-lrt" to include real time library.
2314
      perror_plus("raise");
374 by Teddy Hogeborn
* plugins.d/mandos-client.c (main): Try harder to raise signal on
2315
      abort();
2316
    }
2317
    TEMP_FAILURE_RETRY(pause());
354 by Teddy Hogeborn
* plugins.d/mandos-client.c (signal_received): New.
2318
  }
2319
  
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
2320
  return exitcode;
13 by Björn Påhlsson
Added following support:
2321
}