/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk
359 by Teddy Hogeborn
* plugins-runner.c (main): Bug fix: Close config file.
1
/*  -*- coding: utf-8; mode: c; mode: orgtbl -*- */
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
2
/*
3
 * Mandos plugin runner - Run Mandos plugins
4
 *
626 by Teddy Hogeborn
* Makefile (CFLAGS, LDFLAGS): Keep default flags from environment.
5
 * Copyright © 2008-2013 Teddy Hogeborn
6
 * Copyright © 2008-2013 Björn Påhlsson
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
7
 * 
8
 * This program is free software: you can redistribute it and/or
9
 * modify it under the terms of the GNU General Public License as
10
 * published by the Free Software Foundation, either version 3 of the
11
 * License, or (at your option) any later version.
12
 * 
13
 * This program is distributed in the hope that it will be useful, but
14
 * WITHOUT ANY WARRANTY; without even the implied warranty of
15
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16
 * General Public License for more details.
17
 * 
18
 * You should have received a copy of the GNU General Public License
19
 * along with this program.  If not, see
20
 * <http://www.gnu.org/licenses/>.
21
 * 
505.1.2 by Teddy Hogeborn
Change "fukt.bsnet.se" to "recompile.se" throughout.
22
 * Contact the authors at <mandos@recompile.se>.
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
23
 */
24
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
25
#define _GNU_SOURCE		/* TEMP_FAILURE_RETRY(), getline(),
384 by Teddy Hogeborn
* plugin-runner.c (main): Use the O_CLOEXEC flag, if available, when
26
				   asprintf(), O_CLOEXEC */
24.1.26 by Björn Påhlsson
tally count of used symbols
27
#include <stddef.h>		/* size_t, NULL */
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
28
#include <stdlib.h>		/* malloc(), exit(), EXIT_SUCCESS,
29
				   realloc() */
24.1.26 by Björn Påhlsson
tally count of used symbols
30
#include <stdbool.h>		/* bool, true, false */
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
31
#include <stdio.h>		/* fileno(), fprintf(),
205 by Teddy Hogeborn
* Makefile (PLUGINS, uninstall-client,
32
				   stderr, STDOUT_FILENO */
384 by Teddy Hogeborn
* plugin-runner.c (main): Use the O_CLOEXEC flag, if available, when
33
#include <sys/types.h>	        /* DIR, fdopendir(), stat(), struct
24.1.26 by Björn Påhlsson
tally count of used symbols
34
				   stat, waitpid(), WIFEXITED(),
35
				   WEXITSTATUS(), wait(), pid_t,
36
				   uid_t, gid_t, getuid(), getgid(),
37
				   dirfd() */
38
#include <sys/select.h>		/* fd_set, select(), FD_ZERO(),
39
				   FD_SET(), FD_ISSET(), FD_CLR */
40
#include <sys/wait.h>		/* wait(), waitpid(), WIFEXITED(),
356 by Teddy Hogeborn
* plugin-runner.c (main): When a plugin is killed by a signal, show
41
				   WEXITSTATUS(), WTERMSIG(),
42
				   WCOREDUMP() */
24.1.26 by Björn Påhlsson
tally count of used symbols
43
#include <sys/stat.h>		/* struct stat, stat(), S_ISREG() */
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
44
#include <iso646.h>		/* and, or, not */
384 by Teddy Hogeborn
* plugin-runner.c (main): Use the O_CLOEXEC flag, if available, when
45
#include <dirent.h>		/* DIR, struct dirent, fdopendir(),
24.1.26 by Björn Påhlsson
tally count of used symbols
46
				   readdir(), closedir(), dirfd() */
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
47
#include <unistd.h>		/* struct stat, stat(), S_ISREG(),
24.1.26 by Björn Påhlsson
tally count of used symbols
48
				   fcntl(), setuid(), setgid(),
49
				   F_GETFD, F_SETFD, FD_CLOEXEC,
50
				   access(), pipe(), fork(), close()
205 by Teddy Hogeborn
* Makefile (PLUGINS, uninstall-client,
51
				   dup2(), STDOUT_FILENO, _exit(),
24.1.26 by Björn Påhlsson
tally count of used symbols
52
				   execv(), write(), read(),
53
				   close() */
54
#include <fcntl.h>		/* fcntl(), F_GETFD, F_SETFD,
55
				   FD_CLOEXEC */
356 by Teddy Hogeborn
* plugin-runner.c (main): When a plugin is killed by a signal, show
56
#include <string.h>		/* strsep, strlen(), asprintf(),
24.1.141 by Björn Påhlsson
fixed incorrect include comments
57
				   strsignal(), strcmp(), strncmp() */
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
58
#include <errno.h>		/* errno */
24.1.26 by Björn Påhlsson
tally count of used symbols
59
#include <argp.h>		/* struct argp_option, struct
60
				   argp_state, struct argp,
61
				   argp_parse(), ARGP_ERR_UNKNOWN,
102 by Teddy Hogeborn
* plugin-runner.c (process): Set "completed" and "status" as volatile.
62
				   ARGP_KEY_END, ARGP_KEY_ARG,
63
				   error_t */
24.1.26 by Björn Påhlsson
tally count of used symbols
64
#include <signal.h> 		/* struct sigaction, sigemptyset(),
65
				   sigaddset(), sigaction(),
66
				   sigprocmask(), SIG_BLOCK, SIGCHLD,
308 by Teddy Hogeborn
* plugin-runner.c: Comment change.
67
				   SIG_UNBLOCK, kill(), sig_atomic_t
68
				*/
24.1.26 by Björn Påhlsson
tally count of used symbols
69
#include <errno.h>		/* errno, EBADF */
311 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
70
#include <inttypes.h>		/* intmax_t, PRIdMAX, strtoimax() */
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
71
#include <sysexits.h>		/* EX_OSERR, EX_USAGE, EX_IOERR,
72
				   EX_CONFIG, EX_UNAVAILABLE, EX_OK */
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
73
#include <errno.h> 		/* errno */
74
#include <error.h>		/* error() */
13 by Björn Påhlsson
Added following support:
75
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
76
#define BUFFER_SIZE 256
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
77
78
#define PDIR "/lib/mandos/plugins.d"
79
#define AFILE "/conf/conf.d/mandos/plugin-runner.conf"
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
80
217 by Teddy Hogeborn
* .bzrignore: Added "man" directory (created by "make install-html").
81
const char *argp_program_version = "plugin-runner " VERSION;
505.1.2 by Teddy Hogeborn
Change "fukt.bsnet.se" to "recompile.se" throughout.
82
const char *argp_program_bug_address = "<mandos@recompile.se>";
24.1.35 by Björn Påhlsson
version 1.0
83
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
84
typedef struct plugin{
85
  char *name;			/* can be NULL or any plugin name */
86
  char **argv;
87
  int argc;
88
  char **environ;
89
  int envc;
90
  bool disabled;
312 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
91
  
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
92
  /* Variables used for running processes*/
13 by Björn Påhlsson
Added following support:
93
  pid_t pid;
94
  int fd;
95
  char *buffer;
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
96
  size_t buffer_size;
97
  size_t buffer_length;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
98
  bool eof;
296 by Teddy Hogeborn
* plugin-runner.c (struct plugin.completed): Changed type to "volatile
99
  volatile sig_atomic_t completed;
297 by Teddy Hogeborn
* plugin-runner.c (struct plugin.status): Changed type to "int".
100
  int status;
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
101
  struct plugin *next;
102
} plugin;
103
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
104
static plugin *plugin_list = NULL;
105
24.1.90 by Björn Påhlsson
fixed two bugs:
106
/* Gets an existing plugin based on name,
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
107
   or if none is found, creates a new one */
108
static plugin *getplugin(char *name){
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
109
  /* Check for existing plugin with that name */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
110
  for(plugin *p = plugin_list; p != NULL; p = p->next){
111
    if((p->name == name)
112
       or (p->name and name and (strcmp(p->name, name) == 0))){
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
113
      return p;
114
    }
115
  }
116
  /* Create a new plugin */
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
117
  plugin *new_plugin = NULL;
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
118
  do {
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
119
    new_plugin = malloc(sizeof(plugin));
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
120
  } while(new_plugin == NULL and errno == EINTR);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
121
  if(new_plugin == NULL){
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
122
    return NULL;
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
123
  }
24.1.62 by Björn Påhlsson
merge + small bugfix
124
  char *copy_name = NULL;
125
  if(name != NULL){
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
126
    do {
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
127
      copy_name = strdup(name);
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
128
    } while(copy_name == NULL and errno == EINTR);
98 by Teddy Hogeborn
* plugin-runner.c (getplugin): Only copy "name" if not NULL. Free
129
    if(copy_name == NULL){
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
130
      int e = errno;
272 by Teddy Hogeborn
Fix problem found using cppcheck, thanks to George Danchev
131
      free(new_plugin);
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
132
      errno = e;
98 by Teddy Hogeborn
* plugin-runner.c (getplugin): Only copy "name" if not NULL. Free
133
      return NULL;
134
    }
24.1.54 by Björn Påhlsson
plugin-runner
135
  }
24.1.90 by Björn Påhlsson
fixed two bugs:
136
  
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
137
  *new_plugin = (plugin){ .name = copy_name,
138
			  .argc = 1,
139
			  .disabled = false,
140
			  .next = plugin_list };
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
141
  
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
142
  do {
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
143
    new_plugin->argv = malloc(sizeof(char *) * 2);
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
144
  } while(new_plugin->argv == NULL and errno == EINTR);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
145
  if(new_plugin->argv == NULL){
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
146
    int e = errno;
24.1.62 by Björn Påhlsson
merge + small bugfix
147
    free(copy_name);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
148
    free(new_plugin);
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
149
    errno = e;
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
150
    return NULL;
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
151
  }
24.1.54 by Björn Påhlsson
plugin-runner
152
  new_plugin->argv[0] = copy_name;
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
153
  new_plugin->argv[1] = NULL;
135 by Teddy Hogeborn
* plugin-runner.c (add_environment): Never insert existing environment
154
  
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
155
  do {
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
156
    new_plugin->environ = malloc(sizeof(char *));
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
157
  } while(new_plugin->environ == NULL and errno == EINTR);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
158
  if(new_plugin->environ == NULL){
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
159
    int e = errno;
24.1.62 by Björn Påhlsson
merge + small bugfix
160
    free(copy_name);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
161
    free(new_plugin->argv);
162
    free(new_plugin);
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
163
    errno = e;
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
164
    return NULL;
165
  }
166
  new_plugin->environ[0] = NULL;
135 by Teddy Hogeborn
* plugin-runner.c (add_environment): Never insert existing environment
167
  
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
168
  /* Append the new plugin to the list */
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
169
  plugin_list = new_plugin;
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
170
  return new_plugin;
171
}
172
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
173
/* Helper function for add_argument and add_environment */
534 by teddy at bsnet
* plugin-runner.c (add_to_char_array): Added "nonnull" attribute.
174
__attribute__((nonnull))
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
175
static bool add_to_char_array(const char *new, char ***array,
176
			      int *len){
177
  /* Resize the pointed-to array to hold one more pointer */
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
178
  char **new_array = NULL;
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
179
  do {
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
180
    new_array = realloc(*array, sizeof(char *)
181
			* (size_t) ((*len) + 2));
182
  } while(new_array == NULL and errno == EINTR);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
183
  /* Malloc check */
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
184
  if(new_array == NULL){
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
185
    return false;
186
  }
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
187
  *array = new_array;
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
188
  /* Make a copy of the new string */
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
189
  char *copy;
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
190
  do {
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
191
    copy = strdup(new);
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
192
  } while(copy == NULL and errno == EINTR);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
193
  if(copy == NULL){
194
    return false;
195
  }
196
  /* Insert the copy */
197
  (*array)[*len] = copy;
198
  (*len)++;
199
  /* Add a new terminating NULL pointer to the last element */
200
  (*array)[*len] = NULL;
201
  return true;
202
}
203
204
/* Add to a plugin's argument vector */
534 by teddy at bsnet
* plugin-runner.c (add_to_char_array): Added "nonnull" attribute.
205
__attribute__((nonnull(2)))
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
206
static bool add_argument(plugin *p, const char *arg){
207
  if(p == NULL){
208
    return false;
209
  }
210
  return add_to_char_array(arg, &(p->argv), &(p->argc));
211
}
212
213
/* Add to a plugin's environment */
534 by teddy at bsnet
* plugin-runner.c (add_to_char_array): Added "nonnull" attribute.
214
__attribute__((nonnull(2)))
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
215
static bool add_environment(plugin *p, const char *def, bool replace){
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
216
  if(p == NULL){
217
    return false;
218
  }
135 by Teddy Hogeborn
* plugin-runner.c (add_environment): Never insert existing environment
219
  /* namelen = length of name of environment variable */
220
  size_t namelen = (size_t)(strchrnul(def, '=') - def);
221
  /* Search for this environment variable */
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
222
  for(char **envdef = p->environ; *envdef != NULL; envdef++){
223
    if(strncmp(*envdef, def, namelen + 1) == 0){
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
224
      /* It already exists */
225
      if(replace){
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
226
	char *new_envdef;
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
227
	do {
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
228
	  new_envdef = realloc(*envdef, strlen(def) + 1);
229
	} while(new_envdef == NULL and errno == EINTR);
230
	if(new_envdef == NULL){
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
231
	  return false;
232
	}
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
233
	*envdef = new_envdef;
234
	strcpy(*envdef, def);
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
235
      }
135 by Teddy Hogeborn
* plugin-runner.c (add_environment): Never insert existing environment
236
      return true;
237
    }
238
  }
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
239
  return add_to_char_array(def, &(p->environ), &(p->envc));
240
}
241
32 by Teddy Hogeborn
* plugins.d/plugbasedclient.c (set_cloexec_flag): New function.
242
/*
243
 * Based on the example in the GNU LibC manual chapter 13.13 "File
244
 * Descriptor Flags".
359 by Teddy Hogeborn
* plugins-runner.c (main): Bug fix: Close config file.
245
 | [[info:libc:Descriptor%20Flags][File Descriptor Flags]] |
32 by Teddy Hogeborn
* plugins.d/plugbasedclient.c (set_cloexec_flag): New function.
246
 */
187 by Teddy Hogeborn
* debian/mandos-client.README.Debian: Document "eth0" default and how
247
static int set_cloexec_flag(int fd){
367 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
248
  int ret = (int)TEMP_FAILURE_RETRY(fcntl(fd, F_GETFD, 0));
32 by Teddy Hogeborn
* plugins.d/plugbasedclient.c (set_cloexec_flag): New function.
249
  /* If reading the flags failed, return error indication now. */
250
  if(ret < 0){
251
    return ret;
252
  }
253
  /* Store modified flag word in the descriptor. */
367 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
254
  return (int)TEMP_FAILURE_RETRY(fcntl(fd, F_SETFD,
255
				       ret | FD_CLOEXEC));
32 by Teddy Hogeborn
* plugins.d/plugbasedclient.c (set_cloexec_flag): New function.
256
}
257
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
258
102 by Teddy Hogeborn
* plugin-runner.c (process): Set "completed" and "status" as volatile.
259
/* Mark processes as completed when they exit, and save their exit
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
260
   status. */
187 by Teddy Hogeborn
* debian/mandos-client.README.Debian: Document "eth0" default and how
261
static void handle_sigchld(__attribute__((unused)) int sig){
298 by Teddy Hogeborn
* plugin-runner.c (handle_sigchld): Bug fix: Save and restore "errno".
262
  int old_errno = errno;
24.1.65 by Björn Påhlsson
* plugin-runner.c (handle_sigchld): Loop until all exited children
263
  while(true){
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
264
    plugin *proc = plugin_list;
24.1.65 by Björn Påhlsson
* plugin-runner.c (handle_sigchld): Loop until all exited children
265
    int status;
266
    pid_t pid = waitpid(-1, &status, WNOHANG);
267
    if(pid == 0){
102 by Teddy Hogeborn
* plugin-runner.c (process): Set "completed" and "status" as volatile.
268
      /* Only still running child processes */
24.1.65 by Björn Påhlsson
* plugin-runner.c (handle_sigchld): Loop until all exited children
269
      break;
270
    }
271
    if(pid == -1){
295 by Teddy Hogeborn
* plugin-runner.c (handle_sigchld): Clarify logic.
272
      if(errno == ECHILD){
273
	/* No child processes */
274
	break;
24.1.65 by Björn Påhlsson
* plugin-runner.c (handle_sigchld): Loop until all exited children
275
      }
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
276
      error(0, errno, "waitpid");
24.1.65 by Björn Påhlsson
* plugin-runner.c (handle_sigchld): Loop until all exited children
277
    }
24.1.90 by Björn Påhlsson
fixed two bugs:
278
    
102 by Teddy Hogeborn
* plugin-runner.c (process): Set "completed" and "status" as volatile.
279
    /* A child exited, find it in process_list */
24.1.65 by Björn Påhlsson
* plugin-runner.c (handle_sigchld): Loop until all exited children
280
    while(proc != NULL and proc->pid != pid){
281
      proc = proc->next;
282
    }
283
    if(proc == NULL){
284
      /* Process not found in process list */
285
      continue;
286
    }
287
    proc->status = status;
296 by Teddy Hogeborn
* plugin-runner.c (struct plugin.completed): Changed type to "volatile
288
    proc->completed = 1;
24.1.65 by Björn Påhlsson
* plugin-runner.c (handle_sigchld): Loop until all exited children
289
  }
298 by Teddy Hogeborn
* plugin-runner.c (handle_sigchld): Bug fix: Save and restore "errno".
290
  errno = old_errno;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
291
}
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
292
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
293
/* Prints out a password to stdout */
534 by teddy at bsnet
* plugin-runner.c (add_to_char_array): Added "nonnull" attribute.
294
__attribute__((nonnull))
187 by Teddy Hogeborn
* debian/mandos-client.README.Debian: Document "eth0" default and how
295
static bool print_out_password(const char *buffer, size_t length){
64 by Teddy Hogeborn
* mandos-client.c (print_out_password): Strip trailing '\n'.
296
  ssize_t ret;
297
  for(size_t written = 0; written < length; written += (size_t)ret){
24.1.42 by Björn Påhlsson
Added fallback to mandos-client
298
    ret = TEMP_FAILURE_RETRY(write(STDOUT_FILENO, buffer + written,
299
				   length - written));
300
    if(ret < 0){
301
      return false;
302
    }
303
  }
304
  return true;
305
}
306
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
307
/* Removes and free a plugin from the plugin list */
534 by teddy at bsnet
* plugin-runner.c (add_to_char_array): Added "nonnull" attribute.
308
__attribute__((nonnull))
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
309
static void free_plugin(plugin *plugin_node){
310
  
311
  for(char **arg = plugin_node->argv; *arg != NULL; arg++){
312
    free(*arg);
313
  }
314
  free(plugin_node->argv);
315
  for(char **env = plugin_node->environ; *env != NULL; env++){
316
    free(*env);
317
  }
318
  free(plugin_node->environ);
319
  free(plugin_node->buffer);
312 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
320
  
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
321
  /* Removes the plugin from the singly-linked list */
322
  if(plugin_node == plugin_list){
323
    /* First one - simple */
324
    plugin_list = plugin_list->next;
325
  } else {
326
    /* Second one or later */
327
    for(plugin *p = plugin_list; p != NULL; p = p->next){
328
      if(p->next == plugin_node){
329
	p->next = plugin_node->next;
330
	break;
331
      }
332
    }
333
  }
334
  
335
  free(plugin_node);
336
}
337
338
static void free_plugin_list(void){
339
  while(plugin_list != NULL){
340
    free_plugin(plugin_list);
98 by Teddy Hogeborn
* plugin-runner.c (getplugin): Only copy "name" if not NULL. Free
341
  }
24.1.54 by Björn Påhlsson
plugin-runner
342
}
343
13 by Björn Påhlsson
Added following support:
344
int main(int argc, char *argv[]){
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
345
  char *plugindir = NULL;
346
  char *argfile = NULL;
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
347
  FILE *conffp;
24.1.5 by Björn Påhlsson
plugbasedclient:
348
  size_t d_name_len;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
349
  DIR *dir = NULL;
13 by Björn Påhlsson
Added following support:
350
  struct dirent *dirst;
351
  struct stat st;
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
352
  fd_set rfds_all;
311 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
353
  int ret, maxfd = 0;
254 by Teddy Hogeborn
Eliminate warning on 64-bit systems, thanks to Frans Pop
354
  ssize_t sret;
24.1.6 by Björn Påhlsson
plugbasedclient
355
  uid_t uid = 65534;
356
  gid_t gid = 65534;
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
357
  bool debug = false;
358
  int exitstatus = EXIT_SUCCESS;
24.1.7 by Björn Påhlsson
merge
359
  struct sigaction old_sigchld_action;
360
  struct sigaction sigchld_action = { .sa_handler = handle_sigchld,
361
				      .sa_flags = SA_NOCLDSTOP };
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
362
  char **custom_argv = NULL;
363
  int custom_argc = 0;
364
  
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
365
  /* Establish a signal handler */
366
  sigemptyset(&sigchld_action.sa_mask);
367
  ret = sigaddset(&sigchld_action.sa_mask, SIGCHLD);
24.1.54 by Björn Påhlsson
plugin-runner
368
  if(ret == -1){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
369
    error(0, errno, "sigaddset");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
370
    exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
371
    goto fallback;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
372
  }
373
  ret = sigaction(SIGCHLD, &sigchld_action, &old_sigchld_action);
24.1.54 by Björn Påhlsson
plugin-runner
374
  if(ret == -1){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
375
    error(0, errno, "sigaction");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
376
    exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
377
    goto fallback;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
378
  }
379
  
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
380
  /* The options we understand. */
381
  struct argp_option options[] = {
382
    { .name = "global-options", .key = 'g',
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
383
      .arg = "OPTION[,OPTION[,...]]",
384
      .doc = "Options passed to all plugins" },
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
385
    { .name = "global-env", .key = 'G',
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
386
      .arg = "VAR=value",
387
      .doc = "Environment variable passed to all plugins" },
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
388
    { .name = "options-for", .key = 'o',
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
389
      .arg = "PLUGIN:OPTION[,OPTION[,...]]",
390
      .doc = "Options passed only to specified plugin" },
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
391
    { .name = "env-for", .key = 'E',
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
392
      .arg = "PLUGIN:ENV=value",
393
      .doc = "Environment variable passed to specified plugin" },
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
394
    { .name = "disable", .key = 'd',
395
      .arg = "PLUGIN",
396
      .doc = "Disable a specific plugin", .group = 1 },
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
397
    { .name = "enable", .key = 'e',
398
      .arg = "PLUGIN",
399
      .doc = "Enable a specific plugin", .group = 1 },
24.1.5 by Björn Påhlsson
plugbasedclient:
400
    { .name = "plugin-dir", .key = 128,
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
401
      .arg = "DIRECTORY",
402
      .doc = "Specify a different plugin directory", .group = 2 },
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
403
    { .name = "config-file", .key = 129,
404
      .arg = "FILE",
405
      .doc = "Specify a different configuration file", .group = 2 },
406
    { .name = "userid", .key = 130,
407
      .arg = "ID", .flags = 0,
408
      .doc = "User ID the plugins will run as", .group = 3 },
409
    { .name = "groupid", .key = 131,
410
      .arg = "ID", .flags = 0,
411
      .doc = "Group ID the plugins will run as", .group = 3 },
412
    { .name = "debug", .key = 132,
413
      .doc = "Debug mode", .group = 4 },
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
414
    /*
415
     * These reproduce what we would get without ARGP_NO_HELP
416
     */
417
    { .name = "help", .key = '?',
418
      .doc = "Give this help list", .group = -1 },
419
    { .name = "usage", .key = -3,
420
      .doc = "Give a short usage message", .group = -1 },
421
    { .name = "version", .key = 'V',
422
      .doc = "Print program version", .group = -1 },
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
423
    { .name = NULL }
424
  };
425
  
534 by teddy at bsnet
* plugin-runner.c (add_to_char_array): Added "nonnull" attribute.
426
  __attribute__((nonnull(3)))
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
427
  error_t parse_opt(int key, char *arg, struct argp_state *state){
428
    errno = 0;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
429
    switch(key){
360 by Teddy Hogeborn
* plugin-runner.c (main): Move variables "tmpmax" and "tmp" into
430
      char *tmp;
536 by Björn Påhlsson
renamed some foomax values to what they actually represent
431
      intmax_t tmp_id;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
432
    case 'g': 			/* --global-options */
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
433
      {
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
434
	char *plugin_option;
435
	while((plugin_option = strsep(&arg, ",")) != NULL){
436
	  if(not add_argument(getplugin(NULL), plugin_option)){
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
437
	    break;
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
438
	  }
439
	}
440
      }
441
      break;
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
442
    case 'G':			/* --global-env */
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
443
      add_environment(getplugin(NULL), arg, true);
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
444
      break;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
445
    case 'o':			/* --options-for */
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
446
      {
447
	char *option_list = strchr(arg, ':');
448
	if(option_list == NULL){
449
	  argp_error(state, "No colon in \"%s\"", arg);
450
	  errno = EINVAL;
451
	  break;
452
	}
453
	*option_list = '\0';
454
	option_list++;
455
	if(arg[0] == '\0'){
456
	  argp_error(state, "Empty plugin name");
457
	  errno = EINVAL;
458
	  break;
459
	}
460
	char *option;
461
	while((option = strsep(&option_list, ",")) != NULL){
462
	  if(not add_argument(getplugin(arg), option)){
463
	    break;
24.1.50 by Björn Påhlsson
changed from using strtok to strsep
464
	  }
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
465
	}
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
466
      }
467
      break;
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
468
    case 'E':			/* --env-for */
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
469
      {
470
	char *envdef = strchr(arg, ':');
471
	if(envdef == NULL){
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
472
	  argp_error(state, "No colon in \"%s\"", arg);
473
	  errno = EINVAL;
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
474
	  break;
475
	}
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
476
	*envdef = '\0';
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
477
	envdef++;
478
	if(arg[0] == '\0'){
479
	  argp_error(state, "Empty plugin name");
480
	  errno = EINVAL;
481
	  break;
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
482
	}
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
483
	add_environment(getplugin(arg), envdef, true);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
484
      }
485
      break;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
486
    case 'd':			/* --disable */
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
487
      {
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
488
	plugin *p = getplugin(arg);
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
489
	if(p != NULL){
490
	  p->disabled = true;
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
491
	}
24.1.5 by Björn Påhlsson
plugbasedclient:
492
      }
493
      break;
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
494
    case 'e':			/* --enable */
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
495
      {
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
496
	plugin *p = getplugin(arg);
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
497
	if(p != NULL){
498
	  p->disabled = false;
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
499
	}
500
      }
501
      break;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
502
    case 128:			/* --plugin-dir */
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
503
      free(plugindir);
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
504
      plugindir = strdup(arg);
24.1.5 by Björn Påhlsson
plugbasedclient:
505
      break;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
506
    case 129:			/* --config-file */
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
507
      /* This is already done by parse_opt_config_file() */
508
      break;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
509
    case 130:			/* --userid */
536 by Björn Påhlsson
renamed some foomax values to what they actually represent
510
      tmp_id = strtoimax(arg, &tmp, 10);
311 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
511
      if(errno != 0 or tmp == arg or *tmp != '\0'
536 by Björn Påhlsson
renamed some foomax values to what they actually represent
512
	 or tmp_id != (uid_t)tmp_id){
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
513
	argp_error(state, "Bad user ID number: \"%s\", using %"
514
		   PRIdMAX, arg, (intmax_t)uid);
515
	break;
264 by Teddy Hogeborn
* plugin-runner.c (main): Use "sscanf" instead of "strtol"; using the
516
      }
536 by Björn Påhlsson
renamed some foomax values to what they actually represent
517
      uid = (uid_t)tmp_id;
24.1.6 by Björn Påhlsson
plugbasedclient
518
      break;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
519
    case 131:			/* --groupid */
536 by Björn Påhlsson
renamed some foomax values to what they actually represent
520
      tmp_id = strtoimax(arg, &tmp, 10);
311 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
521
      if(errno != 0 or tmp == arg or *tmp != '\0'
536 by Björn Påhlsson
renamed some foomax values to what they actually represent
522
	 or tmp_id != (gid_t)tmp_id){
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
523
	argp_error(state, "Bad group ID number: \"%s\", using %"
524
		   PRIdMAX, arg, (intmax_t)gid);
525
	break;
264 by Teddy Hogeborn
* plugin-runner.c (main): Use "sscanf" instead of "strtol"; using the
526
      }
536 by Björn Påhlsson
renamed some foomax values to what they actually represent
527
      gid = (gid_t)tmp_id;
24.1.6 by Björn Påhlsson
plugbasedclient
528
      break;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
529
    case 132:			/* --debug */
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
530
      debug = true;
531
      break;
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
532
      /*
533
       * These reproduce what we would get without ARGP_NO_HELP
534
       */
535
    case '?':			/* --help */
536
      state->flags &= ~(unsigned int)ARGP_NO_EXIT; /* force exit */
537
      argp_state_help(state, state->out_stream, ARGP_HELP_STD_HELP);
538
    case -3:			/* --usage */
539
      state->flags &= ~(unsigned int)ARGP_NO_EXIT; /* force exit */
540
      argp_state_help(state, state->out_stream,
541
		      ARGP_HELP_USAGE | ARGP_HELP_EXIT_OK);
542
    case 'V':			/* --version */
543
      fprintf(state->out_stream, "%s\n", argp_program_version);
544
      exit(EXIT_SUCCESS);
545
      break;
264 by Teddy Hogeborn
* plugin-runner.c (main): Use "sscanf" instead of "strtol"; using the
546
/*
547
 * When adding more options before this line, remember to also add a
548
 * "case" to the "parse_opt_config_file" function below.
549
 */
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
550
    case ARGP_KEY_ARG:
178 by Teddy Hogeborn
* initramfs-tools-script: Fix permissions of "/tmp" in initrd.
551
      /* Cryptsetup always passes an argument, which is an empty
552
	 string if "none" was specified in /etc/crypttab.  So if
553
	 argument was empty, we ignore it silently. */
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
554
      if(arg[0] == '\0'){
555
	break;
178 by Teddy Hogeborn
* initramfs-tools-script: Fix permissions of "/tmp" in initrd.
556
      }
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
557
    default:
558
      return ARGP_ERR_UNKNOWN;
559
    }
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
560
    return errno;		/* Set to 0 at start */
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
561
  }
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
562
  
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
563
  /* This option parser is the same as parse_opt() above, except it
564
     ignores everything but the --config-file option. */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
565
  error_t parse_opt_config_file(int key, char *arg,
566
				__attribute__((unused))
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
567
				struct argp_state *state){
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
568
    errno = 0;
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
569
    switch(key){
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
570
    case 'g': 			/* --global-options */
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
571
    case 'G':			/* --global-env */
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
572
    case 'o':			/* --options-for */
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
573
    case 'E':			/* --env-for */
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
574
    case 'd':			/* --disable */
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
575
    case 'e':			/* --enable */
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
576
    case 128:			/* --plugin-dir */
577
      break;
578
    case 129:			/* --config-file */
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
579
      free(argfile);
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
580
      argfile = strdup(arg);
355 by Teddy Hogeborn
* mandos: White-space fixes only.
581
      break;
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
582
    case 130:			/* --userid */
583
    case 131:			/* --groupid */
584
    case 132:			/* --debug */
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
585
    case '?':			/* --help */
586
    case -3:			/* --usage */
587
    case 'V':			/* --version */
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
588
    case ARGP_KEY_ARG:
589
      break;
590
    default:
591
      return ARGP_ERR_UNKNOWN;
592
    }
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
593
    return errno;
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
594
  }
595
  
596
  struct argp argp = { .options = options,
597
		       .parser = parse_opt_config_file,
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
598
		       .args_doc = "",
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
599
		       .doc = "Mandos plugin runner -- Run plugins" };
600
  
265 by Teddy Hogeborn
* plugin-runner.c (main): Bug fix; do not accept a "d" character after
601
  /* Parse using parse_opt_config_file() in order to get the custom
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
602
     config file location, if any. */
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
603
  ret = argp_parse(&argp, argc, argv,
604
		   ARGP_IN_ORDER | ARGP_NO_EXIT | ARGP_NO_HELP,
605
		   NULL, NULL);
606
  switch(ret){
607
  case 0:
608
    break;
609
  case ENOMEM:
610
  default:
611
    errno = ret;
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
612
    error(0, errno, "argp_parse");
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
613
    exitstatus = EX_OSERR;
614
    goto fallback;
615
  case EINVAL:
616
    exitstatus = EX_USAGE;
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
617
    goto fallback;
618
  }
619
  
620
  /* Reset to the normal argument parser */
621
  argp.parser = parse_opt;
622
  
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
623
  /* Open the configfile if available */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
624
  if(argfile == NULL){
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
625
    conffp = fopen(AFILE, "r");
626
  } else {
627
    conffp = fopen(argfile, "r");
355 by Teddy Hogeborn
* mandos: White-space fixes only.
628
  }
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
629
  if(conffp != NULL){
630
    char *org_line = NULL;
24.1.54 by Björn Påhlsson
plugin-runner
631
    char *p, *arg, *new_arg, *line;
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
632
    size_t size = 0;
633
    const char whitespace_delims[] = " \r\t\f\v\n";
634
    const char comment_delim[] = "#";
312 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
635
    
24.1.67 by Björn Påhlsson
transformed a function to a part of main
636
    custom_argc = 1;
637
    custom_argv = malloc(sizeof(char*) * 2);
638
    if(custom_argv == NULL){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
639
      error(0, errno, "malloc");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
640
      exitstatus = EX_OSERR;
24.1.67 by Björn Påhlsson
transformed a function to a part of main
641
      goto fallback;
642
    }
643
    custom_argv[0] = argv[0];
644
    custom_argv[1] = NULL;
312 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
645
    
133 by Teddy Hogeborn
* plugin-runner.c: Break a couple of long lines.
646
    /* for each line in the config file, strip whitespace and ignore
647
       commented text */
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
648
    while(true){
649
      sret = getline(&org_line, &size, conffp);
650
      if(sret == -1){
651
	break;
652
      }
312 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
653
      
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
654
      line = org_line;
655
      arg = strsep(&line, comment_delim);
656
      while((p = strsep(&arg, whitespace_delims)) != NULL){
657
	if(p[0] == '\0'){
658
	  continue;
659
	}
660
	new_arg = strdup(p);
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
661
	if(new_arg == NULL){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
662
	  error(0, errno, "strdup");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
663
	  exitstatus = EX_OSERR;
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
664
	  free(org_line);
665
	  goto fallback;
666
	}
667
	
24.1.67 by Björn Påhlsson
transformed a function to a part of main
668
	custom_argc += 1;
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
669
	{
670
	  char **new_argv = realloc(custom_argv, sizeof(char *)
671
				    * ((unsigned int)
672
				       custom_argc + 1));
673
	  if(new_argv == NULL){
674
	    error(0, errno, "realloc");
675
	    exitstatus = EX_OSERR;
676
	    free(new_arg);
677
	    free(org_line);
678
	    goto fallback;
679
	  } else {
680
	    custom_argv = new_argv;
681
	  }
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
682
	}
24.1.67 by Björn Påhlsson
transformed a function to a part of main
683
	custom_argv[custom_argc-1] = new_arg;
355 by Teddy Hogeborn
* mandos: White-space fixes only.
684
	custom_argv[custom_argc] = NULL;
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
685
      }
686
    }
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
687
    do {
359 by Teddy Hogeborn
* plugins-runner.c (main): Bug fix: Close config file.
688
      ret = fclose(conffp);
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
689
    } while(ret == EOF and errno == EINTR);
359 by Teddy Hogeborn
* plugins-runner.c (main): Bug fix: Close config file.
690
    if(ret == EOF){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
691
      error(0, errno, "fclose");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
692
      exitstatus = EX_IOERR;
359 by Teddy Hogeborn
* plugins-runner.c (main): Bug fix: Close config file.
693
      goto fallback;
694
    }
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
695
    free(org_line);
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
696
  } else {
24.1.52 by Björn Påhlsson
merge + minor adjustments
697
    /* Check for harmful errors and go to fallback. Other errors might
698
       not affect opening plugins */
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
699
    if(errno == EMFILE or errno == ENFILE or errno == ENOMEM){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
700
      error(0, errno, "fopen");
402 by Teddy Hogeborn
* mandos (Client.disable): Rename keyword argument "log" to "quiet",
701
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
702
      goto fallback;
24.1.8 by Björn Påhlsson
plugbasedclient
703
    }
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
704
  }
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
705
  /* If there were any arguments from the configuration file, pass
706
     them to parser as command line arguments */
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
707
  if(custom_argv != NULL){
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
708
    ret = argp_parse(&argp, custom_argc, custom_argv,
709
		     ARGP_IN_ORDER | ARGP_NO_EXIT | ARGP_NO_HELP,
710
		     NULL, NULL);
711
    switch(ret){
712
    case 0:
713
      break;
714
    case ENOMEM:
715
    default:
716
      errno = ret;
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
717
      error(0, errno, "argp_parse");
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
718
      exitstatus = EX_OSERR;
719
      goto fallback;
720
    case EINVAL:
721
      exitstatus = EX_CONFIG;
24.1.54 by Björn Påhlsson
plugin-runner
722
      goto fallback;
24.1.26 by Björn Påhlsson
tally count of used symbols
723
    }
24.1.8 by Björn Påhlsson
plugbasedclient
724
  }
725
  
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
726
  /* Parse actual command line arguments, to let them override the
727
     config file */
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
728
  ret = argp_parse(&argp, argc, argv,
729
		   ARGP_IN_ORDER | ARGP_NO_EXIT | ARGP_NO_HELP,
730
		   NULL, NULL);
731
  switch(ret){
732
  case 0:
733
    break;
734
  case ENOMEM:
735
  default:
736
    errno = ret;
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
737
    error(0, errno, "argp_parse");
394 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
738
    exitstatus = EX_OSERR;
739
    goto fallback;
740
  case EINVAL:
741
    exitstatus = EX_USAGE;
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
742
    goto fallback;
743
  }
744
  
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
745
  if(debug){
746
    for(plugin *p = plugin_list; p != NULL; p=p->next){
747
      fprintf(stderr, "Plugin: %s has %d arguments\n",
32 by Teddy Hogeborn
* plugins.d/plugbasedclient.c (set_cloexec_flag): New function.
748
	      p->name ? p->name : "Global", p->argc - 1);
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
749
      for(char **a = p->argv; *a != NULL; a++){
750
	fprintf(stderr, "\tArg: %s\n", *a);
751
      }
268 by Teddy Hogeborn
Fixes for sscanf usage:
752
      fprintf(stderr, "...and %d environment variables\n", p->envc);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
753
      for(char **a = p->environ; *a != NULL; a++){
754
	fprintf(stderr, "\t%s\n", *a);
755
      }
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
756
    }
757
  }
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
758
  
505.3.11 by Teddy Hogeborn
* Makefile (run-client): Add "--network-hook-dir" option.
759
  if(getuid() == 0){
487 by Teddy Hogeborn
* initramfs-tools-script: Abort if plugin-runner is missing. Removed
760
    /* Work around Debian bug #633582:
761
       <http://bugs.debian.org/633582> */
762
    int plugindir_fd = open(/* plugindir or */ PDIR, O_RDONLY);
763
    if(plugindir_fd == -1){
764
      error(0, errno, "open");
765
    } else {
766
      ret = (int)TEMP_FAILURE_RETRY(fstat(plugindir_fd, &st));
767
      if(ret == -1){
768
	error(0, errno, "fstat");
769
      } else {
770
	if(S_ISDIR(st.st_mode) and st.st_uid == 0 and st.st_gid == 0){
771
	  ret = fchown(plugindir_fd, uid, gid);
772
	  if(ret == -1){
773
	    error(0, errno, "fchown");
774
	  }
775
	}
776
      }
777
      TEMP_FAILURE_RETRY(close(plugindir_fd));
778
    }
779
  }
780
  
781
  /* Lower permissions */
620 by Teddy Hogeborn
* plugin-runner.c (main): Bug fix; do not ignore return value of
782
  ret = setgid(gid);
299 by Teddy Hogeborn
* plugin-runner.c (main): Bug fix: Do setgid before setuid.
783
  if(ret == -1){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
784
    error(0, errno, "setgid");
299 by Teddy Hogeborn
* plugin-runner.c (main): Bug fix: Do setgid before setuid.
785
  }
24.1.6 by Björn Påhlsson
plugbasedclient
786
  ret = setuid(uid);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
787
  if(ret == -1){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
788
    error(0, errno, "setuid");
24.1.6 by Björn Påhlsson
plugbasedclient
789
  }
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
790
  
384 by Teddy Hogeborn
* plugin-runner.c (main): Use the O_CLOEXEC flag, if available, when
791
  /* Open plugin directory with close_on_exec flag */
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
792
  {
384 by Teddy Hogeborn
* plugin-runner.c (main): Use the O_CLOEXEC flag, if available, when
793
    int dir_fd = -1;
794
    if(plugindir == NULL){
795
      dir_fd = open(PDIR, O_RDONLY |
796
#ifdef O_CLOEXEC
797
		    O_CLOEXEC
798
#else  /* not O_CLOEXEC */
799
		    0
800
#endif	/* not O_CLOEXEC */
801
		    );
802
    } else {
803
      dir_fd = open(plugindir, O_RDONLY |
804
#ifdef O_CLOEXEC
805
		    O_CLOEXEC
806
#else  /* not O_CLOEXEC */
807
		    0
808
#endif	/* not O_CLOEXEC */
809
		    );
810
    }
811
    if(dir_fd == -1){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
812
      error(0, errno, "Could not open plugin dir");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
813
      exitstatus = EX_UNAVAILABLE;
384 by Teddy Hogeborn
* plugin-runner.c (main): Use the O_CLOEXEC flag, if available, when
814
      goto fallback;
815
    }
816
    
817
#ifndef O_CLOEXEC
818
  /* Set the FD_CLOEXEC flag on the directory */
819
    ret = set_cloexec_flag(dir_fd);
820
    if(ret < 0){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
821
      error(0, errno, "set_cloexec_flag");
384 by Teddy Hogeborn
* plugin-runner.c (main): Use the O_CLOEXEC flag, if available, when
822
      TEMP_FAILURE_RETRY(close(dir_fd));
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
823
      exitstatus = EX_OSERR;
384 by Teddy Hogeborn
* plugin-runner.c (main): Use the O_CLOEXEC flag, if available, when
824
      goto fallback;
825
    }
826
#endif	/* O_CLOEXEC */
827
    
828
    dir = fdopendir(dir_fd);
829
    if(dir == NULL){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
830
      error(0, errno, "Could not open plugin dir");
384 by Teddy Hogeborn
* plugin-runner.c (main): Use the O_CLOEXEC flag, if available, when
831
      TEMP_FAILURE_RETRY(close(dir_fd));
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
832
      exitstatus = EX_OSERR;
384 by Teddy Hogeborn
* plugin-runner.c (main): Use the O_CLOEXEC flag, if available, when
833
      goto fallback;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
834
    }
835
  }
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
836
  
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
837
  FD_ZERO(&rfds_all);
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
838
  
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
839
  /* Read and execute any executable in the plugin directory*/
13 by Björn Påhlsson
Added following support:
840
  while(true){
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
841
    do {
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
842
      dirst = readdir(dir);
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
843
    } while(dirst == NULL and errno == EINTR);
13 by Björn Påhlsson
Added following support:
844
    
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
845
    /* All directory entries have been processed */
13 by Björn Påhlsson
Added following support:
846
    if(dirst == NULL){
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
847
      if(errno == EBADF){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
848
	error(0, errno, "readdir");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
849
	exitstatus = EX_IOERR;
24.1.54 by Björn Påhlsson
plugin-runner
850
	goto fallback;
24.1.26 by Björn Påhlsson
tally count of used symbols
851
      }
13 by Björn Påhlsson
Added following support:
852
      break;
853
    }
854
    
855
    d_name_len = strlen(dirst->d_name);
856
    
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
857
    /* Ignore dotfiles, backup files and other junk */
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
858
    {
859
      bool bad_name = false;
860
      
661 by Teddy Hogeborn
* plugin-runner.c (main): Declare "bad_prefixes" and "bad_suffixes"
861
      const char * const bad_prefixes[] = { ".", "#", NULL };
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
862
      
661 by Teddy Hogeborn
* plugin-runner.c (main): Declare "bad_prefixes" and "bad_suffixes"
863
      const char * const bad_suffixes[] = { "~", "#", ".dpkg-new",
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
864
					   ".dpkg-old",
236 by Teddy Hogeborn
* initramfs-tools-hook: Also ignore plugins named "*.dpkg-bak".
865
					   ".dpkg-bak",
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
866
					   ".dpkg-divert", NULL };
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
867
#ifdef __GNUC__
661 by Teddy Hogeborn
* plugin-runner.c (main): Declare "bad_prefixes" and "bad_suffixes"
868
#pragma GCC diagnostic push
869
#pragma GCC diagnostic ignored "-Wcast-qual"
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
870
#endif
661 by Teddy Hogeborn
* plugin-runner.c (main): Declare "bad_prefixes" and "bad_suffixes"
871
      for(const char **pre = (const char **)bad_prefixes;
872
	  *pre != NULL; pre++){
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
873
#ifdef __GNUC__
661 by Teddy Hogeborn
* plugin-runner.c (main): Declare "bad_prefixes" and "bad_suffixes"
874
#pragma GCC diagnostic pop
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
875
#endif
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
876
	size_t pre_len = strlen(*pre);
877
	if((d_name_len >= pre_len)
878
	   and strncmp((dirst->d_name), *pre, pre_len) == 0){
879
	  if(debug){
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
880
	    fprintf(stderr, "Ignoring plugin dir entry \"%s\""
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
881
		    " with bad prefix %s\n", dirst->d_name, *pre);
882
	  }
883
	  bad_name = true;
884
	  break;
885
	}
886
      }
887
      if(bad_name){
888
	continue;
889
      }
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
890
#ifdef __GNUC__
661 by Teddy Hogeborn
* plugin-runner.c (main): Declare "bad_prefixes" and "bad_suffixes"
891
#pragma GCC diagnostic push
892
#pragma GCC diagnostic ignored "-Wcast-qual"
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
893
#endif
661 by Teddy Hogeborn
* plugin-runner.c (main): Declare "bad_prefixes" and "bad_suffixes"
894
      for(const char **suf = (const char **)bad_suffixes;
895
	  *suf != NULL; suf++){
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
896
#ifdef __GNUC__
661 by Teddy Hogeborn
* plugin-runner.c (main): Declare "bad_prefixes" and "bad_suffixes"
897
#pragma GCC diagnostic pop
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
898
#endif
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
899
	size_t suf_len = strlen(*suf);
900
	if((d_name_len >= suf_len)
24.1.141 by Björn Påhlsson
fixed incorrect include comments
901
	   and (strcmp((dirst->d_name) + d_name_len-suf_len, *suf)
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
902
		== 0)){
903
	  if(debug){
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
904
	    fprintf(stderr, "Ignoring plugin dir entry \"%s\""
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
905
		    " with bad suffix %s\n", dirst->d_name, *suf);
906
	  }
907
	  bad_name = true;
908
	  break;
909
	}
910
      }
911
      
912
      if(bad_name){
913
	continue;
914
      }
13 by Björn Påhlsson
Added following support:
915
    }
312 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
916
    
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
917
    char *filename;
169 by Teddy Hogeborn
* plugin-runner.c (main): Bug fix: use built-in default value if
918
    if(plugindir == NULL){
367 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
919
      ret = (int)TEMP_FAILURE_RETRY(asprintf(&filename, PDIR "/%s",
920
					     dirst->d_name));
169 by Teddy Hogeborn
* plugin-runner.c (main): Bug fix: use built-in default value if
921
    } else {
367 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
922
      ret = (int)TEMP_FAILURE_RETRY(asprintf(&filename, "%s/%s",
923
					     plugindir,
924
					     dirst->d_name));
169 by Teddy Hogeborn
* plugin-runner.c (main): Bug fix: use built-in default value if
925
    }
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
926
    if(ret < 0){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
927
      error(0, errno, "asprintf");
24.1.46 by Björn Påhlsson
mandos-client
928
      continue;
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
929
    }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
930
    
367 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
931
    ret = (int)TEMP_FAILURE_RETRY(stat(filename, &st));
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
932
    if(ret == -1){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
933
      error(0, errno, "stat");
24.1.46 by Björn Påhlsson
mandos-client
934
      free(filename);
935
      continue;
24.1.26 by Björn Påhlsson
tally count of used symbols
936
    }
312 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
937
    
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
938
    /* Ignore non-executable files */
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
939
    if(not S_ISREG(st.st_mode)
940
       or (TEMP_FAILURE_RETRY(access(filename, X_OK)) != 0)){
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
941
      if(debug){
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
942
	fprintf(stderr, "Ignoring plugin dir entry \"%s\""
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
943
		" with bad type or mode\n", filename);
944
      }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
945
      free(filename);
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
946
      continue;
947
    }
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
948
    
949
    plugin *p = getplugin(dirst->d_name);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
950
    if(p == NULL){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
951
      error(0, errno, "getplugin");
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
952
      free(filename);
953
      continue;
954
    }
955
    if(p->disabled){
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
956
      if(debug){
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
957
	fprintf(stderr, "Ignoring disabled plugin \"%s\"\n",
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
958
		dirst->d_name);
959
      }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
960
      free(filename);
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
961
      continue;
962
    }
32 by Teddy Hogeborn
* plugins.d/plugbasedclient.c (set_cloexec_flag): New function.
963
    {
964
      /* Add global arguments to argument list for this plugin */
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
965
      plugin *g = getplugin(NULL);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
966
      if(g != NULL){
967
	for(char **a = g->argv + 1; *a != NULL; a++){
968
	  if(not add_argument(p, *a)){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
969
	    error(0, errno, "add_argument");
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
970
	  }
971
	}
972
	/* Add global environment variables */
973
	for(char **e = g->environ; *e != NULL; e++){
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
974
	  if(not add_environment(p, *e, false)){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
975
	    error(0, errno, "add_environment");
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
976
	  }
977
	}
978
      }
979
    }
980
    /* If this plugin has any environment variables, we will call
981
       using execve and need to duplicate the environment from this
982
       process, too. */
983
    if(p->environ[0] != NULL){
984
      for(char **e = environ; *e != NULL; e++){
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
985
	if(not add_environment(p, *e, false)){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
986
	  error(0, errno, "add_environment");
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
987
	}
988
      }
989
    }
990
    
98 by Teddy Hogeborn
* plugin-runner.c (getplugin): Only copy "name" if not NULL. Free
991
    int pipefd[2];
367 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
992
    ret = (int)TEMP_FAILURE_RETRY(pipe(pipefd));
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
993
    if(ret == -1){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
994
      error(0, errno, "pipe");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
995
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
996
      goto fallback;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
997
    }
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
998
    /* Ask OS to automatic close the pipe on exec */
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
999
    ret = set_cloexec_flag(pipefd[0]);
1000
    if(ret < 0){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1001
      error(0, errno, "set_cloexec_flag");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1002
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1003
      goto fallback;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1004
    }
1005
    ret = set_cloexec_flag(pipefd[1]);
1006
    if(ret < 0){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1007
      error(0, errno, "set_cloexec_flag");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1008
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1009
      goto fallback;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1010
    }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1011
    /* Block SIGCHLD until process is safely in process list */
367 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
1012
    ret = (int)TEMP_FAILURE_RETRY(sigprocmask(SIG_BLOCK,
1013
					      &sigchld_action.sa_mask,
1014
					      NULL));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1015
    if(ret < 0){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1016
      error(0, errno, "sigprocmask");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1017
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1018
      goto fallback;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1019
    }
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
1020
    /* Starting a new process to be watched */
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
1021
    pid_t pid;
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
1022
    do {
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
1023
      pid = fork();
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
1024
    } while(pid == -1 and errno == EINTR);
24.1.46 by Björn Påhlsson
mandos-client
1025
    if(pid == -1){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1026
      error(0, errno, "fork");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1027
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1028
      goto fallback;
24.1.46 by Björn Påhlsson
mandos-client
1029
    }
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
1030
    if(pid == 0){
1031
      /* this is the child process */
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1032
      ret = sigaction(SIGCHLD, &old_sigchld_action, NULL);
1033
      if(ret < 0){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1034
	error(0, errno, "sigaction");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1035
	_exit(EX_OSERR);
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1036
      }
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1037
      ret = sigprocmask(SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1038
      if(ret < 0){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1039
	error(0, errno, "sigprocmask");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1040
	_exit(EX_OSERR);
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1041
      }
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1042
      
24.1.26 by Björn Påhlsson
tally count of used symbols
1043
      ret = dup2(pipefd[1], STDOUT_FILENO); /* replace our stdout */
1044
      if(ret == -1){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1045
	error(0, errno, "dup2");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1046
	_exit(EX_OSERR);
24.1.26 by Björn Påhlsson
tally count of used symbols
1047
      }
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1048
      
1049
      if(dirfd(dir) < 0){
1050
	/* If dir has no file descriptor, we could not set FD_CLOEXEC
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1051
	   above and must now close it manually here. */
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1052
	closedir(dir);
33 by Teddy Hogeborn
* plugins.d/plugbasedclient.c (main): Close the pipe fd after dup2:ing
1053
      }
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
1054
      if(p->environ[0] == NULL){
1055
	if(execv(filename, p->argv) < 0){
24.1.161 by Björn Påhlsson
minor debug info for plugin-runner.
1056
	  error(0, errno, "execv for %s", filename);
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1057
	  _exit(EX_OSERR);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
1058
	}
1059
      } else {
1060
	if(execve(filename, p->argv, p->environ) < 0){
24.1.161 by Björn Påhlsson
minor debug info for plugin-runner.
1061
	  error(0, errno, "execve for %s", filename);
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1062
	  _exit(EX_OSERR);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
1063
	}
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
1064
      }
1065
      /* no return */
1066
    }
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1067
    /* Parent process */
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
1068
    TEMP_FAILURE_RETRY(close(pipefd[1])); /* Close unused write end of
1069
					     pipe */
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1070
    free(filename);
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1071
    plugin *new_plugin = getplugin(dirst->d_name);
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
1072
    if(new_plugin == NULL){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1073
      error(0, errno, "getplugin");
367 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
1074
      ret = (int)(TEMP_FAILURE_RETRY
1075
		  (sigprocmask(SIG_UNBLOCK, &sigchld_action.sa_mask,
1076
			       NULL)));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1077
      if(ret < 0){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1078
        error(0, errno, "sigprocmask");
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1079
      }
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1080
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1081
      goto fallback;
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
1082
    }
1083
    
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1084
    new_plugin->pid = pid;
1085
    new_plugin->fd = pipefd[0];
1086
    
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1087
    /* Unblock SIGCHLD so signal handler can be run if this process
1088
       has already completed */
367 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
1089
    ret = (int)TEMP_FAILURE_RETRY(sigprocmask(SIG_UNBLOCK,
1090
					      &sigchld_action.sa_mask,
1091
					      NULL));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1092
    if(ret < 0){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1093
      error(0, errno, "sigprocmask");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1094
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1095
      goto fallback;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1096
    }
1097
    
646 by Teddy Hogeborn
Suppress spurious warnings when needed.
1098
#if defined (__GNUC__) and defined (__GLIBC__)
1099
#if not __GLIBC_PREREQ(2, 16)
1100
#pragma GCC diagnostic push
1101
#pragma GCC diagnostic ignored "-Wsign-conversion"
1102
#endif
1103
#endif
378 by Teddy Hogeborn
* mandos (MandosServer): Fixed doc string.
1104
    FD_SET(new_plugin->fd, &rfds_all); /* Spurious warning from
646 by Teddy Hogeborn
Suppress spurious warnings when needed.
1105
					  -Wconversion in GNU libc
1106
					  before 2.16 */
1107
#if defined (__GNUC__) and defined (__GLIBC__)
1108
#if not __GLIBC_PREREQ(2, 16)
1109
#pragma GCC diagnostic pop
1110
#endif
1111
#endif
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1112
    
266 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
1113
    if(maxfd < new_plugin->fd){
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1114
      maxfd = new_plugin->fd;
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
1115
    }
13 by Björn Påhlsson
Added following support:
1116
  }
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1117
  
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
1118
  TEMP_FAILURE_RETRY(closedir(dir));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1119
  dir = NULL;
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
1120
  free_plugin(getplugin(NULL));
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1121
  
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1122
  for(plugin *p = plugin_list; p != NULL; p = p->next){
1123
    if(p->pid != 0){
1124
      break;
1125
    }
1126
    if(p->next == NULL){
1127
      fprintf(stderr, "No plugin processes started. Incorrect plugin"
1128
	      " directory?\n");
1129
      free_plugin_list();
1130
    }
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1131
  }
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1132
  
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1133
  /* Main loop while running plugins exist */
1134
  while(plugin_list){
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1135
    fd_set rfds = rfds_all;
1136
    int select_ret = select(maxfd+1, &rfds, NULL, NULL, NULL);
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
1137
    if(select_ret == -1 and errno != EINTR){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1138
      error(0, errno, "select");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1139
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1140
      goto fallback;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1141
    }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1142
    /* OK, now either a process completed, or something can be read
1143
       from one of them */
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
1144
    for(plugin *proc = plugin_list; proc != NULL;){
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1145
      /* Is this process completely done? */
297 by Teddy Hogeborn
* plugin-runner.c (struct plugin.status): Changed type to "int".
1146
      if(proc->completed and proc->eof){
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1147
	/* Only accept the plugin output if it exited cleanly */
1148
	if(not WIFEXITED(proc->status)
1149
	   or WEXITSTATUS(proc->status) != 0){
1150
	  /* Bad exit by plugin */
312 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1151
	  
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1152
	  if(debug){
1153
	    if(WIFEXITED(proc->status)){
301 by Teddy Hogeborn
* plugin-runner.c (main): If debugging, print name of failed plugins.
1154
	      fprintf(stderr, "Plugin %s [%" PRIdMAX "] exited with"
1155
		      " status %d\n", proc->name,
1156
		      (intmax_t) (proc->pid),
60 by Teddy Hogeborn
* mandos-client.c (main): Cast pid_t to unsigned int before printing.
1157
		      WEXITSTATUS(proc->status));
293 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1158
	    } else if(WIFSIGNALED(proc->status)){
301 by Teddy Hogeborn
* plugin-runner.c (main): If debugging, print name of failed plugins.
1159
	      fprintf(stderr, "Plugin %s [%" PRIdMAX "] killed by"
356 by Teddy Hogeborn
* plugin-runner.c (main): When a plugin is killed by a signal, show
1160
		      " signal %d: %s\n", proc->name,
301 by Teddy Hogeborn
* plugin-runner.c (main): If debugging, print name of failed plugins.
1161
		      (intmax_t) (proc->pid),
356 by Teddy Hogeborn
* plugin-runner.c (main): When a plugin is killed by a signal, show
1162
		      WTERMSIG(proc->status),
1163
		      strsignal(WTERMSIG(proc->status)));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1164
	    } else if(WCOREDUMP(proc->status)){
301 by Teddy Hogeborn
* plugin-runner.c (main): If debugging, print name of failed plugins.
1165
	      fprintf(stderr, "Plugin %s [%" PRIdMAX "] dumped"
1166
		      " core\n", proc->name, (intmax_t) (proc->pid));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1167
	    }
1168
	  }
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1169
	  
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1170
	  /* Remove the plugin */
646 by Teddy Hogeborn
Suppress spurious warnings when needed.
1171
#if defined (__GNUC__) and defined (__GLIBC__)
1172
#if not __GLIBC_PREREQ(2, 16)
1173
#pragma GCC diagnostic push
1174
#pragma GCC diagnostic ignored "-Wsign-conversion"
1175
#endif
1176
#endif
378 by Teddy Hogeborn
* mandos (MandosServer): Fixed doc string.
1177
	  FD_CLR(proc->fd, &rfds_all); /* Spurious warning from
646 by Teddy Hogeborn
Suppress spurious warnings when needed.
1178
					  -Wconversion in GNU libc
1179
					  before 2.16 */
1180
#if defined (__GNUC__) and defined (__GLIBC__)
1181
#if not __GLIBC_PREREQ(2, 16)
1182
#pragma GCC diagnostic pop
1183
#endif
1184
#endif
312 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1185
	  
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1186
	  /* Block signal while modifying process_list */
367 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
1187
	  ret = (int)TEMP_FAILURE_RETRY(sigprocmask
1188
					(SIG_BLOCK,
1189
					 &sigchld_action.sa_mask,
1190
					 NULL));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1191
	  if(ret < 0){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1192
	    error(0, errno, "sigprocmask");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1193
	    exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1194
	    goto fallback;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1195
	  }
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
1196
	  
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1197
	  plugin *next_plugin = proc->next;
1198
	  free_plugin(proc);
1199
	  proc = next_plugin;
1200
	  
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1201
	  /* We are done modifying process list, so unblock signal */
367 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
1202
	  ret = (int)(TEMP_FAILURE_RETRY
1203
		      (sigprocmask(SIG_UNBLOCK,
1204
				   &sigchld_action.sa_mask, NULL)));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1205
	  if(ret < 0){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1206
	    error(0, errno, "sigprocmask");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1207
	    exitstatus = EX_OSERR;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1208
	    goto fallback;
1209
	  }
1210
	  
1211
	  if(plugin_list == NULL){
1212
	    break;
1213
	  }
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
1214
	  
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1215
	  continue;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1216
	}
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1217
	
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1218
	/* This process exited nicely, so print its buffer */
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1219
	
102 by Teddy Hogeborn
* plugin-runner.c (process): Set "completed" and "status" as volatile.
1220
	bool bret = print_out_password(proc->buffer,
1221
				       proc->buffer_length);
24.1.42 by Björn Påhlsson
Added fallback to mandos-client
1222
	if(not bret){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1223
	  error(0, errno, "print_out_password");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1224
	  exitstatus = EX_IOERR;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1225
	}
24.1.54 by Björn Påhlsson
plugin-runner
1226
	goto fallback;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1227
      }
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1228
      
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1229
      /* This process has not completed.  Does it have any output? */
646 by Teddy Hogeborn
Suppress spurious warnings when needed.
1230
#if defined (__GNUC__) and defined (__GLIBC__)
1231
#if not __GLIBC_PREREQ(2, 16)
1232
#pragma GCC diagnostic push
1233
#pragma GCC diagnostic ignored "-Wsign-conversion"
1234
#endif
1235
#endif
378 by Teddy Hogeborn
* mandos (MandosServer): Fixed doc string.
1236
      if(proc->eof or not FD_ISSET(proc->fd, &rfds)){ /* Spurious
1237
							 warning from
646 by Teddy Hogeborn
Suppress spurious warnings when needed.
1238
							 -Wconversion
1239
							 in GNU libc
1240
							 before
1241
							 2.16 */
1242
#if defined (__GNUC__) and defined (__GLIBC__)
1243
#if not __GLIBC_PREREQ(2, 16)
1244
#pragma GCC diagnostic pop
1245
#endif
1246
#endif
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1247
	/* This process had nothing to say at this time */
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
1248
	proc = proc->next;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1249
	continue;
1250
      }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1251
      /* Before reading, make the process' data buffer large enough */
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1252
      if(proc->buffer_length + BUFFER_SIZE > proc->buffer_size){
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
1253
	char *new_buffer = realloc(proc->buffer, proc->buffer_size
1254
				   + (size_t) BUFFER_SIZE);
1255
	if(new_buffer == NULL){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1256
	  error(0, errno, "malloc");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1257
	  exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1258
	  goto fallback;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1259
	}
666 by Teddy Hogeborn
Bug fix: Free all memory and give better messages when memory is full.
1260
	proc->buffer = new_buffer;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1261
	proc->buffer_size += BUFFER_SIZE;
1262
      }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1263
      /* Read from the process */
362 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
1264
      sret = TEMP_FAILURE_RETRY(read(proc->fd,
1265
				     proc->buffer
1266
				     + proc->buffer_length,
1267
				     BUFFER_SIZE));
254 by Teddy Hogeborn
Eliminate warning on 64-bit systems, thanks to Frans Pop
1268
      if(sret < 0){
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1269
	/* Read error from this process; ignore the error */
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
1270
	proc = proc->next;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1271
	continue;
1272
      }
254 by Teddy Hogeborn
Eliminate warning on 64-bit systems, thanks to Frans Pop
1273
      if(sret == 0){
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1274
	/* got EOF */
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1275
	proc->eof = true;
1276
      } else {
254 by Teddy Hogeborn
Eliminate warning on 64-bit systems, thanks to Frans Pop
1277
	proc->buffer_length += (size_t) sret;
13 by Björn Påhlsson
Added following support:
1278
      }
1279
    }
1280
  }
312 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1281
  
1282
  
24.1.54 by Björn Påhlsson
plugin-runner
1283
 fallback:
24.1.42 by Björn Påhlsson
Added fallback to mandos-client
1284
  
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1285
  if(plugin_list == NULL or (exitstatus != EXIT_SUCCESS
1286
			     and exitstatus != EX_OK)){
102 by Teddy Hogeborn
* plugin-runner.c (process): Set "completed" and "status" as volatile.
1287
    /* Fallback if all plugins failed, none are found or an error
1288
       occured */
24.1.42 by Björn Påhlsson
Added fallback to mandos-client
1289
    bool bret;
1290
    fprintf(stderr, "Going to fallback mode using getpass(3)\n");
1291
    char *passwordbuffer = getpass("Password: ");
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
1292
    size_t len = strlen(passwordbuffer);
1293
    /* Strip trailing newline */
1294
    if(len > 0 and passwordbuffer[len-1] == '\n'){
1295
      passwordbuffer[len-1] = '\0'; /* not strictly necessary */
1296
      len--;
1297
    }
1298
    bret = print_out_password(passwordbuffer, len);
24.1.42 by Björn Påhlsson
Added fallback to mandos-client
1299
    if(not bret){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1300
      error(0, errno, "print_out_password");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1301
      exitstatus = EX_IOERR;
24.1.42 by Björn Påhlsson
Added fallback to mandos-client
1302
    }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1303
  }
24.1.42 by Björn Påhlsson
Added fallback to mandos-client
1304
  
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1305
  /* Restore old signal handler */
24.1.54 by Björn Påhlsson
plugin-runner
1306
  ret = sigaction(SIGCHLD, &old_sigchld_action, NULL);
1307
  if(ret == -1){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1308
    error(0, errno, "sigaction");
399 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1309
    exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1310
  }
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1311
  
24.1.54 by Björn Påhlsson
plugin-runner
1312
  if(custom_argv != NULL){
24.1.67 by Björn Påhlsson
transformed a function to a part of main
1313
    for(char **arg = custom_argv+1; *arg != NULL; arg++){
24.1.54 by Björn Påhlsson
plugin-runner
1314
      free(*arg);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
1315
    }
24.1.54 by Björn Påhlsson
plugin-runner
1316
    free(custom_argv);
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1317
  }
1318
  
1319
  if(dir != NULL){
1320
    closedir(dir);
1321
  }
1322
  
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1323
  /* Kill the processes */
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1324
  for(plugin *p = plugin_list; p != NULL; p = p->next){
1325
    if(p->pid != 0){
1326
      close(p->fd);
1327
      ret = kill(p->pid, SIGTERM);
1328
      if(ret == -1 and errno != ESRCH){
1329
	/* Set-uid proccesses might not get closed */
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1330
	error(0, errno, "kill");
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1331
      }
24.1.26 by Björn Påhlsson
tally count of used symbols
1332
    }
13 by Björn Påhlsson
Added following support:
1333
  }
1334
  
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1335
  /* Wait for any remaining child processes to terminate */
363 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
1336
  do {
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1337
    ret = wait(NULL);
1338
  } while(ret >= 0);
1339
  if(errno != ECHILD){
24.1.155 by Björn Påhlsson
mandos server: Added debuglevel that adjust at what level information
1340
    error(0, errno, "wait");
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1341
  }
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1342
  
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1343
  free_plugin_list();
1344
  
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
1345
  free(plugindir);
1346
  free(argfile);
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1347
  
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
1348
  return exitstatus;
13 by Björn Påhlsson
Added following support:
1349
}