/mandos/release

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/release
237.2.122 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
 *
237.2.9 by Teddy Hogeborn
* README: Update copyright year; add "2009".
5
 * Copyright © 2008,2009 Teddy Hogeborn
6
 * Copyright © 2008,2009 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
 * 
28 by Teddy Hogeborn
* server.conf: New file.
22
 * Contact the authors at <mandos@fukt.bsnet.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(),
237.2.147 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 */
237.2.162 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 */
205 by Teddy Hogeborn
* Makefile (PLUGINS, uninstall-client,
31
#include <stdio.h>		/* perror, fileno(), fprintf(),
32
				   stderr, STDOUT_FILENO */
237.2.147 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(),
237.2.119 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 */
237.2.147 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 */
237.2.119 by Teddy Hogeborn
* plugin-runner.c (main): When a plugin is killed by a signal, show
56
#include <string.h>		/* strsep, strlen(), asprintf(),
57
				   strsignal() */
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,
237.2.71 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 */
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
70
#include <inttypes.h>		/* intmax_t, PRIdMAX, strtoimax() */
237.2.162 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 */
13 by Björn Påhlsson
Added following support:
73
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
74
#define BUFFER_SIZE 256
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
75
76
#define PDIR "/lib/mandos/plugins.d"
77
#define AFILE "/conf/conf.d/mandos/plugin-runner.conf"
37 by Teddy Hogeborn
Non-tested commit for merge purposes.
78
217 by Teddy Hogeborn
* .bzrignore: Added "man" directory (created by "make install-html").
79
const char *argp_program_version = "plugin-runner " VERSION;
24.1.35 by Björn Påhlsson
version 1.0
80
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
81
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
82
typedef struct plugin{
83
  char *name;			/* can be NULL or any plugin name */
84
  char **argv;
85
  int argc;
86
  char **environ;
87
  int envc;
88
  bool disabled;
237.2.75 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
89
  
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
90
  /* Variables used for running processes*/
13 by Björn Påhlsson
Added following support:
91
  pid_t pid;
92
  int fd;
93
  char *buffer;
21 by Teddy Hogeborn
* Makefile (CFLAGS): Changed to use $(WARN), $(DEBUG), $(COVERAGE) and
94
  size_t buffer_size;
95
  size_t buffer_length;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
96
  bool eof;
237.2.59 by Teddy Hogeborn
* plugin-runner.c (struct plugin.completed): Changed type to "volatile
97
  volatile sig_atomic_t completed;
237.2.60 by Teddy Hogeborn
* plugin-runner.c (struct plugin.status): Changed type to "int".
98
  int status;
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
99
  struct plugin *next;
100
} plugin;
101
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
102
static plugin *plugin_list = NULL;
103
24.1.90 by Björn Påhlsson
fixed two bugs:
104
/* Gets an existing plugin based on name,
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
105
   or if none is found, creates a new one */
106
static plugin *getplugin(char *name){
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
107
  /* Check for existing plugin with that name */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
108
  for(plugin *p = plugin_list; p != NULL; p = p->next){
109
    if((p->name == name)
110
       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
111
      return p;
112
    }
113
  }
114
  /* Create a new plugin */
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
115
  plugin *new_plugin = NULL;
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
116
  do {
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
117
    new_plugin = malloc(sizeof(plugin));
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
118
  } while(new_plugin == NULL and errno == EINTR);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
119
  if(new_plugin == NULL){
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
120
    return NULL;
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
121
  }
24.1.62 by Björn Påhlsson
merge + small bugfix
122
  char *copy_name = NULL;
123
  if(name != NULL){
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
124
    do {
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
125
      copy_name = strdup(name);
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
126
    } while(copy_name == NULL and errno == EINTR);
98 by Teddy Hogeborn
* plugin-runner.c (getplugin): Only copy "name" if not NULL. Free
127
    if(copy_name == NULL){
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
128
      int e = errno;
237.2.35 by Teddy Hogeborn
Fix problem found using cppcheck, thanks to George Danchev
129
      free(new_plugin);
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
130
      errno = e;
98 by Teddy Hogeborn
* plugin-runner.c (getplugin): Only copy "name" if not NULL. Free
131
      return NULL;
132
    }
24.1.54 by Björn Påhlsson
plugin-runner
133
  }
24.1.90 by Björn Påhlsson
fixed two bugs:
134
  
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
135
  *new_plugin = (plugin){ .name = copy_name,
136
			  .argc = 1,
137
			  .disabled = false,
138
			  .next = plugin_list };
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
139
  
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
140
  do {
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
141
    new_plugin->argv = malloc(sizeof(char *) * 2);
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
142
  } while(new_plugin->argv == NULL and errno == EINTR);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
143
  if(new_plugin->argv == NULL){
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
144
    int e = errno;
24.1.62 by Björn Påhlsson
merge + small bugfix
145
    free(copy_name);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
146
    free(new_plugin);
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
147
    errno = e;
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
148
    return NULL;
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
149
  }
24.1.54 by Björn Påhlsson
plugin-runner
150
  new_plugin->argv[0] = copy_name;
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
151
  new_plugin->argv[1] = NULL;
135 by Teddy Hogeborn
* plugin-runner.c (add_environment): Never insert existing environment
152
  
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
153
  do {
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
154
    new_plugin->environ = malloc(sizeof(char *));
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
155
  } while(new_plugin->environ == NULL and errno == EINTR);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
156
  if(new_plugin->environ == NULL){
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
157
    int e = errno;
24.1.62 by Björn Påhlsson
merge + small bugfix
158
    free(copy_name);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
159
    free(new_plugin->argv);
160
    free(new_plugin);
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
161
    errno = e;
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
162
    return NULL;
163
  }
164
  new_plugin->environ[0] = NULL;
135 by Teddy Hogeborn
* plugin-runner.c (add_environment): Never insert existing environment
165
  
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
166
  /* Append the new plugin to the list */
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
167
  plugin_list = new_plugin;
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
168
  return new_plugin;
169
}
170
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
171
/* Helper function for add_argument and add_environment */
172
static bool add_to_char_array(const char *new, char ***array,
173
			      int *len){
174
  /* Resize the pointed-to array to hold one more pointer */
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
175
  do {
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
176
    *array = realloc(*array, sizeof(char *)
177
		     * (size_t) ((*len) + 2));
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
178
  } while(*array == NULL and errno == EINTR);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
179
  /* Malloc check */
180
  if(*array == NULL){
181
    return false;
182
  }
183
  /* Make a copy of the new string */
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
184
  char *copy;
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
185
  do {
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
186
    copy = strdup(new);
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
187
  } while(copy == NULL and errno == EINTR);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
188
  if(copy == NULL){
189
    return false;
190
  }
191
  /* Insert the copy */
192
  (*array)[*len] = copy;
193
  (*len)++;
194
  /* Add a new terminating NULL pointer to the last element */
195
  (*array)[*len] = NULL;
196
  return true;
197
}
198
199
/* Add to a plugin's argument vector */
200
static bool add_argument(plugin *p, const char *arg){
201
  if(p == NULL){
202
    return false;
203
  }
204
  return add_to_char_array(arg, &(p->argv), &(p->argc));
205
}
206
207
/* Add to a plugin's environment */
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
208
static bool add_environment(plugin *p, const char *def, bool replace){
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
209
  if(p == NULL){
210
    return false;
211
  }
135 by Teddy Hogeborn
* plugin-runner.c (add_environment): Never insert existing environment
212
  /* namelen = length of name of environment variable */
213
  size_t namelen = (size_t)(strchrnul(def, '=') - def);
214
  /* Search for this environment variable */
215
  for(char **e = p->environ; *e != NULL; e++){
24.1.90 by Björn Påhlsson
fixed two bugs:
216
    if(strncmp(*e, def, namelen + 1) == 0){
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
217
      /* It already exists */
218
      if(replace){
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
219
	char *new;
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
220
	do {
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
221
	  new = realloc(*e, strlen(def) + 1);
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
222
	} while(new == NULL and errno == EINTR);
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
223
	if(new == NULL){
224
	  return false;
225
	}
226
	*e = new;
227
	strcpy(*e, def);
228
      }
135 by Teddy Hogeborn
* plugin-runner.c (add_environment): Never insert existing environment
229
      return true;
230
    }
231
  }
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
232
  return add_to_char_array(def, &(p->environ), &(p->envc));
233
}
234
32 by Teddy Hogeborn
* plugins.d/plugbasedclient.c (set_cloexec_flag): New function.
235
/*
236
 * Based on the example in the GNU LibC manual chapter 13.13 "File
237
 * Descriptor Flags".
237.2.122 by Teddy Hogeborn
* plugins-runner.c (main): Bug fix: Close config file.
238
 | [[info:libc:Descriptor%20Flags][File Descriptor Flags]] |
32 by Teddy Hogeborn
* plugins.d/plugbasedclient.c (set_cloexec_flag): New function.
239
 */
187 by Teddy Hogeborn
* debian/mandos-client.README.Debian: Document "eth0" default and how
240
static int set_cloexec_flag(int fd){
237.2.130 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
241
  int ret = (int)TEMP_FAILURE_RETRY(fcntl(fd, F_GETFD, 0));
32 by Teddy Hogeborn
* plugins.d/plugbasedclient.c (set_cloexec_flag): New function.
242
  /* If reading the flags failed, return error indication now. */
243
  if(ret < 0){
244
    return ret;
245
  }
246
  /* Store modified flag word in the descriptor. */
237.2.130 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
247
  return (int)TEMP_FAILURE_RETRY(fcntl(fd, F_SETFD,
248
				       ret | FD_CLOEXEC));
32 by Teddy Hogeborn
* plugins.d/plugbasedclient.c (set_cloexec_flag): New function.
249
}
250
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
251
102 by Teddy Hogeborn
* plugin-runner.c (process): Set "completed" and "status" as volatile.
252
/* Mark processes as completed when they exit, and save their exit
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
253
   status. */
187 by Teddy Hogeborn
* debian/mandos-client.README.Debian: Document "eth0" default and how
254
static void handle_sigchld(__attribute__((unused)) int sig){
237.2.61 by Teddy Hogeborn
* plugin-runner.c (handle_sigchld): Bug fix: Save and restore "errno".
255
  int old_errno = errno;
24.1.65 by Björn Påhlsson
* plugin-runner.c (handle_sigchld): Loop until all exited children
256
  while(true){
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
257
    plugin *proc = plugin_list;
24.1.65 by Björn Påhlsson
* plugin-runner.c (handle_sigchld): Loop until all exited children
258
    int status;
259
    pid_t pid = waitpid(-1, &status, WNOHANG);
260
    if(pid == 0){
102 by Teddy Hogeborn
* plugin-runner.c (process): Set "completed" and "status" as volatile.
261
      /* Only still running child processes */
24.1.65 by Björn Påhlsson
* plugin-runner.c (handle_sigchld): Loop until all exited children
262
      break;
263
    }
264
    if(pid == -1){
237.2.58 by Teddy Hogeborn
* plugin-runner.c (handle_sigchld): Clarify logic.
265
      if(errno == ECHILD){
266
	/* No child processes */
267
	break;
24.1.65 by Björn Påhlsson
* plugin-runner.c (handle_sigchld): Loop until all exited children
268
      }
237.2.58 by Teddy Hogeborn
* plugin-runner.c (handle_sigchld): Clarify logic.
269
      perror("waitpid");
24.1.65 by Björn Påhlsson
* plugin-runner.c (handle_sigchld): Loop until all exited children
270
    }
24.1.90 by Björn Påhlsson
fixed two bugs:
271
    
102 by Teddy Hogeborn
* plugin-runner.c (process): Set "completed" and "status" as volatile.
272
    /* A child exited, find it in process_list */
24.1.65 by Björn Påhlsson
* plugin-runner.c (handle_sigchld): Loop until all exited children
273
    while(proc != NULL and proc->pid != pid){
274
      proc = proc->next;
275
    }
276
    if(proc == NULL){
277
      /* Process not found in process list */
278
      continue;
279
    }
280
    proc->status = status;
237.2.59 by Teddy Hogeborn
* plugin-runner.c (struct plugin.completed): Changed type to "volatile
281
    proc->completed = 1;
24.1.65 by Björn Påhlsson
* plugin-runner.c (handle_sigchld): Loop until all exited children
282
  }
237.2.61 by Teddy Hogeborn
* plugin-runner.c (handle_sigchld): Bug fix: Save and restore "errno".
283
  errno = old_errno;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
284
}
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
285
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
286
/* Prints out a password to stdout */
187 by Teddy Hogeborn
* debian/mandos-client.README.Debian: Document "eth0" default and how
287
static bool print_out_password(const char *buffer, size_t length){
64 by Teddy Hogeborn
* mandos-client.c (print_out_password): Strip trailing '\n'.
288
  ssize_t ret;
289
  for(size_t written = 0; written < length; written += (size_t)ret){
24.1.42 by Björn Påhlsson
Added fallback to mandos-client
290
    ret = TEMP_FAILURE_RETRY(write(STDOUT_FILENO, buffer + written,
291
				   length - written));
292
    if(ret < 0){
293
      return false;
294
    }
295
  }
296
  return true;
297
}
298
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
299
/* Removes and free a plugin from the plugin list */
300
static void free_plugin(plugin *plugin_node){
301
  
302
  for(char **arg = plugin_node->argv; *arg != NULL; arg++){
303
    free(*arg);
304
  }
305
  free(plugin_node->argv);
306
  for(char **env = plugin_node->environ; *env != NULL; env++){
307
    free(*env);
308
  }
309
  free(plugin_node->environ);
310
  free(plugin_node->buffer);
237.2.75 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
311
  
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
312
  /* Removes the plugin from the singly-linked list */
313
  if(plugin_node == plugin_list){
314
    /* First one - simple */
315
    plugin_list = plugin_list->next;
316
  } else {
317
    /* Second one or later */
318
    for(plugin *p = plugin_list; p != NULL; p = p->next){
319
      if(p->next == plugin_node){
320
	p->next = plugin_node->next;
321
	break;
322
      }
323
    }
324
  }
325
  
326
  free(plugin_node);
327
}
328
329
static void free_plugin_list(void){
330
  while(plugin_list != NULL){
331
    free_plugin(plugin_list);
98 by Teddy Hogeborn
* plugin-runner.c (getplugin): Only copy "name" if not NULL. Free
332
  }
24.1.54 by Björn Påhlsson
plugin-runner
333
}
334
13 by Björn Påhlsson
Added following support:
335
int main(int argc, char *argv[]){
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
336
  char *plugindir = NULL;
337
  char *argfile = NULL;
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
338
  FILE *conffp;
24.1.5 by Björn Påhlsson
plugbasedclient:
339
  size_t d_name_len;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
340
  DIR *dir = NULL;
13 by Björn Påhlsson
Added following support:
341
  struct dirent *dirst;
342
  struct stat st;
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
343
  fd_set rfds_all;
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
344
  int ret, maxfd = 0;
237.2.17 by Teddy Hogeborn
Eliminate warning on 64-bit systems, thanks to Frans Pop
345
  ssize_t sret;
24.1.6 by Björn Påhlsson
plugbasedclient
346
  uid_t uid = 65534;
347
  gid_t gid = 65534;
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
348
  bool debug = false;
349
  int exitstatus = EXIT_SUCCESS;
24.1.7 by Björn Påhlsson
merge
350
  struct sigaction old_sigchld_action;
351
  struct sigaction sigchld_action = { .sa_handler = handle_sigchld,
352
				      .sa_flags = SA_NOCLDSTOP };
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
353
  char **custom_argv = NULL;
354
  int custom_argc = 0;
355
  
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
356
  /* Establish a signal handler */
357
  sigemptyset(&sigchld_action.sa_mask);
358
  ret = sigaddset(&sigchld_action.sa_mask, SIGCHLD);
24.1.54 by Björn Påhlsson
plugin-runner
359
  if(ret == -1){
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
360
    perror("sigaddset");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
361
    exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
362
    goto fallback;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
363
  }
364
  ret = sigaction(SIGCHLD, &sigchld_action, &old_sigchld_action);
24.1.54 by Björn Påhlsson
plugin-runner
365
  if(ret == -1){
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
366
    perror("sigaction");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
367
    exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
368
    goto fallback;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
369
  }
370
  
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
371
  /* The options we understand. */
372
  struct argp_option options[] = {
373
    { .name = "global-options", .key = 'g',
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
374
      .arg = "OPTION[,OPTION[,...]]",
375
      .doc = "Options passed to all plugins" },
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
376
    { .name = "global-env", .key = 'G',
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
377
      .arg = "VAR=value",
378
      .doc = "Environment variable passed to all plugins" },
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
379
    { .name = "options-for", .key = 'o',
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
380
      .arg = "PLUGIN:OPTION[,OPTION[,...]]",
381
      .doc = "Options passed only to specified plugin" },
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
382
    { .name = "env-for", .key = 'E',
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
383
      .arg = "PLUGIN:ENV=value",
384
      .doc = "Environment variable passed to specified plugin" },
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
385
    { .name = "disable", .key = 'd',
386
      .arg = "PLUGIN",
387
      .doc = "Disable a specific plugin", .group = 1 },
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
388
    { .name = "enable", .key = 'e',
389
      .arg = "PLUGIN",
390
      .doc = "Enable a specific plugin", .group = 1 },
24.1.5 by Björn Påhlsson
plugbasedclient:
391
    { .name = "plugin-dir", .key = 128,
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
392
      .arg = "DIRECTORY",
393
      .doc = "Specify a different plugin directory", .group = 2 },
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
394
    { .name = "config-file", .key = 129,
395
      .arg = "FILE",
396
      .doc = "Specify a different configuration file", .group = 2 },
397
    { .name = "userid", .key = 130,
398
      .arg = "ID", .flags = 0,
399
      .doc = "User ID the plugins will run as", .group = 3 },
400
    { .name = "groupid", .key = 131,
401
      .arg = "ID", .flags = 0,
402
      .doc = "Group ID the plugins will run as", .group = 3 },
403
    { .name = "debug", .key = 132,
404
      .doc = "Debug mode", .group = 4 },
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
405
    /*
406
     * These reproduce what we would get without ARGP_NO_HELP
407
     */
408
    { .name = "help", .key = '?',
409
      .doc = "Give this help list", .group = -1 },
410
    { .name = "usage", .key = -3,
411
      .doc = "Give a short usage message", .group = -1 },
412
    { .name = "version", .key = 'V',
413
      .doc = "Print program version", .group = -1 },
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
414
    { .name = NULL }
415
  };
416
  
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
417
  error_t parse_opt(int key, char *arg, struct argp_state *state){
418
    errno = 0;
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
419
    switch(key){
237.2.123 by Teddy Hogeborn
* plugin-runner.c (main): Move variables "tmpmax" and "tmp" into
420
      char *tmp;
421
      intmax_t tmpmax;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
422
    case 'g': 			/* --global-options */
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
423
      {
24.1.134 by Björn Påhlsson
plugin-runner: Added support for empty string arguments
424
	char *plugin_option;
425
	while((plugin_option = strsep(&arg, ",")) != NULL){
426
	  if(not add_argument(getplugin(NULL), plugin_option)){
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
427
	    break;
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
428
	  }
429
	}
430
      }
431
      break;
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
432
    case 'G':			/* --global-env */
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
433
      add_environment(getplugin(NULL), arg, true);
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
434
      break;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
435
    case 'o':			/* --options-for */
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
436
      {
437
	char *option_list = strchr(arg, ':');
438
	if(option_list == NULL){
439
	  argp_error(state, "No colon in \"%s\"", arg);
440
	  errno = EINVAL;
441
	  break;
442
	}
443
	*option_list = '\0';
444
	option_list++;
445
	if(arg[0] == '\0'){
446
	  argp_error(state, "Empty plugin name");
447
	  errno = EINVAL;
448
	  break;
449
	}
450
	char *option;
451
	while((option = strsep(&option_list, ",")) != NULL){
452
	  if(not add_argument(getplugin(arg), option)){
453
	    break;
24.1.50 by Björn Påhlsson
changed from using strtok to strsep
454
	  }
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
455
	}
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
456
      }
457
      break;
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
458
    case 'E':			/* --env-for */
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
459
      {
460
	char *envdef = strchr(arg, ':');
461
	if(envdef == NULL){
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
462
	  argp_error(state, "No colon in \"%s\"", arg);
463
	  errno = EINVAL;
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
464
	  break;
465
	}
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
466
	*envdef = '\0';
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
467
	envdef++;
468
	if(arg[0] == '\0'){
469
	  argp_error(state, "Empty plugin name");
470
	  errno = EINVAL;
471
	  break;
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
472
	}
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
473
	add_environment(getplugin(arg), envdef, true);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
474
      }
475
      break;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
476
    case 'd':			/* --disable */
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
477
      {
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
478
	plugin *p = getplugin(arg);
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
479
	if(p != NULL){
480
	  p->disabled = true;
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
481
	}
24.1.5 by Björn Påhlsson
plugbasedclient:
482
      }
483
      break;
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
484
    case 'e':			/* --enable */
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
485
      {
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
486
	plugin *p = getplugin(arg);
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
487
	if(p != NULL){
488
	  p->disabled = false;
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
489
	}
490
      }
491
      break;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
492
    case 128:			/* --plugin-dir */
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
493
      free(plugindir);
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
494
      plugindir = strdup(arg);
24.1.5 by Björn Påhlsson
plugbasedclient:
495
      break;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
496
    case 129:			/* --config-file */
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
497
      /* This is already done by parse_opt_config_file() */
498
      break;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
499
    case 130:			/* --userid */
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
500
      tmpmax = strtoimax(arg, &tmp, 10);
501
      if(errno != 0 or tmp == arg or *tmp != '\0'
502
	 or tmpmax != (uid_t)tmpmax){
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
503
	argp_error(state, "Bad user ID number: \"%s\", using %"
504
		   PRIdMAX, arg, (intmax_t)uid);
505
	break;
237.2.27 by Teddy Hogeborn
* plugin-runner.c (main): Use "sscanf" instead of "strtol"; using the
506
      }
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
507
      uid = (uid_t)tmpmax;
24.1.6 by Björn Påhlsson
plugbasedclient
508
      break;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
509
    case 131:			/* --groupid */
237.2.74 by Teddy Hogeborn
Overflows are not detected by sscanf(), so stop using it:
510
      tmpmax = strtoimax(arg, &tmp, 10);
511
      if(errno != 0 or tmp == arg or *tmp != '\0'
512
	 or tmpmax != (gid_t)tmpmax){
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
513
	argp_error(state, "Bad group ID number: \"%s\", using %"
514
		   PRIdMAX, arg, (intmax_t)gid);
515
	break;
237.2.27 by Teddy Hogeborn
* plugin-runner.c (main): Use "sscanf" instead of "strtol"; using the
516
      }
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
517
      gid = (gid_t)tmpmax;
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 132:			/* --debug */
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
520
      debug = true;
521
      break;
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
522
      /*
523
       * These reproduce what we would get without ARGP_NO_HELP
524
       */
525
    case '?':			/* --help */
526
      state->flags &= ~(unsigned int)ARGP_NO_EXIT; /* force exit */
527
      argp_state_help(state, state->out_stream, ARGP_HELP_STD_HELP);
528
    case -3:			/* --usage */
529
      state->flags &= ~(unsigned int)ARGP_NO_EXIT; /* force exit */
530
      argp_state_help(state, state->out_stream,
531
		      ARGP_HELP_USAGE | ARGP_HELP_EXIT_OK);
532
    case 'V':			/* --version */
533
      fprintf(state->out_stream, "%s\n", argp_program_version);
534
      exit(EXIT_SUCCESS);
535
      break;
237.2.27 by Teddy Hogeborn
* plugin-runner.c (main): Use "sscanf" instead of "strtol"; using the
536
/*
537
 * When adding more options before this line, remember to also add a
538
 * "case" to the "parse_opt_config_file" function below.
539
 */
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
540
    case ARGP_KEY_ARG:
178 by Teddy Hogeborn
* initramfs-tools-script: Fix permissions of "/tmp" in initrd.
541
      /* Cryptsetup always passes an argument, which is an empty
542
	 string if "none" was specified in /etc/crypttab.  So if
543
	 argument was empty, we ignore it silently. */
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
544
      if(arg[0] == '\0'){
545
	break;
178 by Teddy Hogeborn
* initramfs-tools-script: Fix permissions of "/tmp" in initrd.
546
      }
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
547
    default:
548
      return ARGP_ERR_UNKNOWN;
549
    }
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
550
    return errno;		/* Set to 0 at start */
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
551
  }
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
552
  
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
553
  /* This option parser is the same as parse_opt() above, except it
554
     ignores everything but the --config-file option. */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
555
  error_t parse_opt_config_file(int key, char *arg,
556
				__attribute__((unused))
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
557
				struct argp_state *state){
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
558
    errno = 0;
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
559
    switch(key){
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
560
    case 'g': 			/* --global-options */
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
561
    case 'G':			/* --global-env */
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
562
    case 'o':			/* --options-for */
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
563
    case 'E':			/* --env-for */
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
564
    case 'd':			/* --disable */
138 by Teddy Hogeborn
* plugin-runner.c: Changed short option for "--global-env" to "-G",
565
    case 'e':			/* --enable */
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
566
    case 128:			/* --plugin-dir */
567
      break;
568
    case 129:			/* --config-file */
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
569
      free(argfile);
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
570
      argfile = strdup(arg);
237.2.118 by Teddy Hogeborn
* mandos: White-space fixes only.
571
      break;
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
572
    case 130:			/* --userid */
573
    case 131:			/* --groupid */
574
    case 132:			/* --debug */
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
575
    case '?':			/* --help */
576
    case -3:			/* --usage */
577
    case 'V':			/* --version */
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
578
    case ARGP_KEY_ARG:
579
      break;
580
    default:
581
      return ARGP_ERR_UNKNOWN;
582
    }
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
583
    return errno;
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
584
  }
585
  
586
  struct argp argp = { .options = options,
587
		       .parser = parse_opt_config_file,
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
588
		       .args_doc = "",
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
589
		       .doc = "Mandos plugin runner -- Run plugins" };
590
  
237.2.28 by Teddy Hogeborn
* plugin-runner.c (main): Bug fix; do not accept a "d" character after
591
  /* 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".
592
     config file location, if any. */
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
593
  ret = argp_parse(&argp, argc, argv,
594
		   ARGP_IN_ORDER | ARGP_NO_EXIT | ARGP_NO_HELP,
595
		   NULL, NULL);
596
  switch(ret){
597
  case 0:
598
    break;
599
  case ENOMEM:
600
  default:
601
    errno = ret;
602
    perror("argp_parse");
603
    exitstatus = EX_OSERR;
604
    goto fallback;
605
  case EINVAL:
606
    exitstatus = EX_USAGE;
137 by Teddy Hogeborn
* plugin-runner.c (main/parse_opt): Removed code for "--config-file".
607
    goto fallback;
608
  }
609
  
610
  /* Reset to the normal argument parser */
611
  argp.parser = parse_opt;
612
  
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
613
  /* Open the configfile if available */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
614
  if(argfile == NULL){
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
615
    conffp = fopen(AFILE, "r");
616
  } else {
617
    conffp = fopen(argfile, "r");
237.2.118 by Teddy Hogeborn
* mandos: White-space fixes only.
618
  }
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
619
  if(conffp != NULL){
620
    char *org_line = NULL;
24.1.54 by Björn Påhlsson
plugin-runner
621
    char *p, *arg, *new_arg, *line;
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
622
    size_t size = 0;
623
    const char whitespace_delims[] = " \r\t\f\v\n";
624
    const char comment_delim[] = "#";
237.2.75 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
625
    
24.1.67 by Björn Påhlsson
transformed a function to a part of main
626
    custom_argc = 1;
627
    custom_argv = malloc(sizeof(char*) * 2);
628
    if(custom_argv == NULL){
629
      perror("malloc");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
630
      exitstatus = EX_OSERR;
24.1.67 by Björn Påhlsson
transformed a function to a part of main
631
      goto fallback;
632
    }
633
    custom_argv[0] = argv[0];
634
    custom_argv[1] = NULL;
237.2.75 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
635
    
133 by Teddy Hogeborn
* plugin-runner.c: Break a couple of long lines.
636
    /* for each line in the config file, strip whitespace and ignore
637
       commented text */
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
638
    while(true){
639
      sret = getline(&org_line, &size, conffp);
640
      if(sret == -1){
641
	break;
642
      }
237.2.75 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
643
      
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
644
      line = org_line;
645
      arg = strsep(&line, comment_delim);
646
      while((p = strsep(&arg, whitespace_delims)) != NULL){
647
	if(p[0] == '\0'){
648
	  continue;
649
	}
650
	new_arg = strdup(p);
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
651
	if(new_arg == NULL){
652
	  perror("strdup");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
653
	  exitstatus = EX_OSERR;
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
654
	  free(org_line);
655
	  goto fallback;
656
	}
657
	
24.1.67 by Björn Påhlsson
transformed a function to a part of main
658
	custom_argc += 1;
659
	custom_argv = realloc(custom_argv, sizeof(char *)
660
			      * ((unsigned int) custom_argc + 1));
661
	if(custom_argv == NULL){
662
	  perror("realloc");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
663
	  exitstatus = EX_OSERR;
24.1.67 by Björn Påhlsson
transformed a function to a part of main
664
	  free(org_line);
24.1.54 by Björn Påhlsson
plugin-runner
665
	  goto fallback;
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
666
	}
24.1.67 by Björn Påhlsson
transformed a function to a part of main
667
	custom_argv[custom_argc-1] = new_arg;
237.2.118 by Teddy Hogeborn
* mandos: White-space fixes only.
668
	custom_argv[custom_argc] = NULL;
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
669
      }
670
    }
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
671
    do {
237.2.122 by Teddy Hogeborn
* plugins-runner.c (main): Bug fix: Close config file.
672
      ret = fclose(conffp);
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
673
    } while(ret == EOF and errno == EINTR);
237.2.122 by Teddy Hogeborn
* plugins-runner.c (main): Bug fix: Close config file.
674
    if(ret == EOF){
675
      perror("fclose");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
676
      exitstatus = EX_IOERR;
237.2.122 by Teddy Hogeborn
* plugins-runner.c (main): Bug fix: Close config file.
677
      goto fallback;
678
    }
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
679
    free(org_line);
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
680
  } else {
24.1.52 by Björn Påhlsson
merge + minor adjustments
681
    /* Check for harmful errors and go to fallback. Other errors might
682
       not affect opening plugins */
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
683
    if(errno == EMFILE or errno == ENFILE or errno == ENOMEM){
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
684
      perror("fopen");
237.2.165 by Teddy Hogeborn
* mandos (Client.disable): Rename keyword argument "log" to "quiet",
685
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
686
      goto fallback;
24.1.8 by Björn Påhlsson
plugbasedclient
687
    }
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
688
  }
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
689
  /* If there were any arguments from the configuration file, pass
690
     them to parser as command line arguments */
24.1.51 by Björn Påhlsson
Added configuration files support for mandos-client
691
  if(custom_argv != NULL){
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
692
    ret = argp_parse(&argp, custom_argc, custom_argv,
693
		     ARGP_IN_ORDER | ARGP_NO_EXIT | ARGP_NO_HELP,
694
		     NULL, NULL);
695
    switch(ret){
696
    case 0:
697
      break;
698
    case ENOMEM:
699
    default:
700
      errno = ret;
701
      perror("argp_parse");
702
      exitstatus = EX_OSERR;
703
      goto fallback;
704
    case EINVAL:
705
      exitstatus = EX_CONFIG;
24.1.54 by Björn Påhlsson
plugin-runner
706
      goto fallback;
24.1.26 by Björn Påhlsson
tally count of used symbols
707
    }
24.1.8 by Björn Påhlsson
plugbasedclient
708
  }
709
  
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
710
  /* Parse actual command line arguments, to let them override the
711
     config file */
237.2.157 by Teddy Hogeborn
Convert some programs to use the exit codes from <sysexits.h>. Change
712
  ret = argp_parse(&argp, argc, argv,
713
		   ARGP_IN_ORDER | ARGP_NO_EXIT | ARGP_NO_HELP,
714
		   NULL, NULL);
715
  switch(ret){
716
  case 0:
717
    break;
718
  case ENOMEM:
719
  default:
720
    errno = ret;
721
    perror("argp_parse");
722
    exitstatus = EX_OSERR;
723
    goto fallback;
724
  case EINVAL:
725
    exitstatus = EX_USAGE;
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
726
    goto fallback;
727
  }
728
  
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
729
  if(debug){
730
    for(plugin *p = plugin_list; p != NULL; p=p->next){
731
      fprintf(stderr, "Plugin: %s has %d arguments\n",
32 by Teddy Hogeborn
* plugins.d/plugbasedclient.c (set_cloexec_flag): New function.
732
	      p->name ? p->name : "Global", p->argc - 1);
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
733
      for(char **a = p->argv; *a != NULL; a++){
734
	fprintf(stderr, "\tArg: %s\n", *a);
735
      }
237.2.31 by Teddy Hogeborn
Fixes for sscanf usage:
736
      fprintf(stderr, "...and %d environment variables\n", p->envc);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
737
      for(char **a = p->environ; *a != NULL; a++){
738
	fprintf(stderr, "\t%s\n", *a);
739
      }
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
740
    }
741
  }
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
742
  
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
743
  /* Strip permissions down to nobody */
237.2.62 by Teddy Hogeborn
* plugin-runner.c (main): Bug fix: Do setgid before setuid.
744
  setgid(gid);
745
  if(ret == -1){
746
    perror("setgid");
747
  }
24.1.6 by Björn Påhlsson
plugbasedclient
748
  ret = setuid(uid);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
749
  if(ret == -1){
24.1.6 by Björn Påhlsson
plugbasedclient
750
    perror("setuid");
751
  }
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
752
  
237.2.147 by Teddy Hogeborn
* plugin-runner.c (main): Use the O_CLOEXEC flag, if available, when
753
  /* Open plugin directory with close_on_exec flag */
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
754
  {
237.2.147 by Teddy Hogeborn
* plugin-runner.c (main): Use the O_CLOEXEC flag, if available, when
755
    int dir_fd = -1;
756
    if(plugindir == NULL){
757
      dir_fd = open(PDIR, O_RDONLY |
758
#ifdef O_CLOEXEC
759
		    O_CLOEXEC
760
#else  /* not O_CLOEXEC */
761
		    0
762
#endif	/* not O_CLOEXEC */
763
		    );
764
    } else {
765
      dir_fd = open(plugindir, O_RDONLY |
766
#ifdef O_CLOEXEC
767
		    O_CLOEXEC
768
#else  /* not O_CLOEXEC */
769
		    0
770
#endif	/* not O_CLOEXEC */
771
		    );
772
    }
773
    if(dir_fd == -1){
774
      perror("Could not open plugin dir");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
775
      exitstatus = EX_UNAVAILABLE;
237.2.147 by Teddy Hogeborn
* plugin-runner.c (main): Use the O_CLOEXEC flag, if available, when
776
      goto fallback;
777
    }
778
    
779
#ifndef O_CLOEXEC
780
  /* Set the FD_CLOEXEC flag on the directory */
781
    ret = set_cloexec_flag(dir_fd);
782
    if(ret < 0){
783
      perror("set_cloexec_flag");
784
      TEMP_FAILURE_RETRY(close(dir_fd));
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
785
      exitstatus = EX_OSERR;
237.2.147 by Teddy Hogeborn
* plugin-runner.c (main): Use the O_CLOEXEC flag, if available, when
786
      goto fallback;
787
    }
788
#endif	/* O_CLOEXEC */
789
    
790
    dir = fdopendir(dir_fd);
791
    if(dir == NULL){
792
      perror("Could not open plugin dir");
793
      TEMP_FAILURE_RETRY(close(dir_fd));
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
794
      exitstatus = EX_OSERR;
237.2.147 by Teddy Hogeborn
* plugin-runner.c (main): Use the O_CLOEXEC flag, if available, when
795
      goto fallback;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
796
    }
797
  }
24.1.1 by Björn Påhlsson
Added syntax and support for plugbasedclient arguments and how they
798
  
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
799
  FD_ZERO(&rfds_all);
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
800
  
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
801
  /* Read and execute any executable in the plugin directory*/
13 by Björn Påhlsson
Added following support:
802
  while(true){
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
803
    do {
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
804
      dirst = readdir(dir);
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
805
    } while(dirst == NULL and errno == EINTR);
13 by Björn Påhlsson
Added following support:
806
    
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
807
    /* All directory entries have been processed */
13 by Björn Påhlsson
Added following support:
808
    if(dirst == NULL){
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
809
      if(errno == EBADF){
24.1.26 by Björn Påhlsson
tally count of used symbols
810
	perror("readdir");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
811
	exitstatus = EX_IOERR;
24.1.54 by Björn Påhlsson
plugin-runner
812
	goto fallback;
24.1.26 by Björn Påhlsson
tally count of used symbols
813
      }
13 by Björn Påhlsson
Added following support:
814
      break;
815
    }
816
    
817
    d_name_len = strlen(dirst->d_name);
818
    
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
819
    /* Ignore dotfiles, backup files and other junk */
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
820
    {
821
      bool bad_name = false;
822
      
823
      const char const *bad_prefixes[] = { ".", "#", NULL };
824
      
825
      const char const *bad_suffixes[] = { "~", "#", ".dpkg-new",
826
					   ".dpkg-old",
236 by Teddy Hogeborn
* initramfs-tools-hook: Also ignore plugins named "*.dpkg-bak".
827
					   ".dpkg-bak",
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
828
					   ".dpkg-divert", NULL };
829
      for(const char **pre = bad_prefixes; *pre != NULL; pre++){
830
	size_t pre_len = strlen(*pre);
831
	if((d_name_len >= pre_len)
832
	   and strncmp((dirst->d_name), *pre, pre_len) == 0){
833
	  if(debug){
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
834
	    fprintf(stderr, "Ignoring plugin dir entry \"%s\""
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
835
		    " with bad prefix %s\n", dirst->d_name, *pre);
836
	  }
837
	  bad_name = true;
838
	  break;
839
	}
840
      }
841
      if(bad_name){
842
	continue;
843
      }
844
      for(const char **suf = bad_suffixes; *suf != NULL; suf++){
845
	size_t suf_len = strlen(*suf);
846
	if((d_name_len >= suf_len)
847
	   and (strcmp((dirst->d_name)+d_name_len-suf_len, *suf)
848
		== 0)){
849
	  if(debug){
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
850
	    fprintf(stderr, "Ignoring plugin dir entry \"%s\""
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
851
		    " with bad suffix %s\n", dirst->d_name, *suf);
852
	  }
853
	  bad_name = true;
854
	  break;
855
	}
856
      }
857
      
858
      if(bad_name){
859
	continue;
860
      }
13 by Björn Påhlsson
Added following support:
861
    }
237.2.75 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
862
    
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
863
    char *filename;
169 by Teddy Hogeborn
* plugin-runner.c (main): Bug fix: use built-in default value if
864
    if(plugindir == NULL){
237.2.130 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
865
      ret = (int)TEMP_FAILURE_RETRY(asprintf(&filename, PDIR "/%s",
866
					     dirst->d_name));
169 by Teddy Hogeborn
* plugin-runner.c (main): Bug fix: use built-in default value if
867
    } else {
237.2.130 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
868
      ret = (int)TEMP_FAILURE_RETRY(asprintf(&filename, "%s/%s",
869
					     plugindir,
870
					     dirst->d_name));
169 by Teddy Hogeborn
* plugin-runner.c (main): Bug fix: use built-in default value if
871
    }
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
872
    if(ret < 0){
873
      perror("asprintf");
24.1.46 by Björn Påhlsson
mandos-client
874
      continue;
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
875
    }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
876
    
237.2.130 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
877
    ret = (int)TEMP_FAILURE_RETRY(stat(filename, &st));
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
878
    if(ret == -1){
24.1.26 by Björn Påhlsson
tally count of used symbols
879
      perror("stat");
24.1.46 by Björn Påhlsson
mandos-client
880
      free(filename);
881
      continue;
24.1.26 by Björn Påhlsson
tally count of used symbols
882
    }
237.2.75 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
883
    
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
884
    /* Ignore non-executable files */
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
885
    if(not S_ISREG(st.st_mode)
886
       or (TEMP_FAILURE_RETRY(access(filename, X_OK)) != 0)){
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
887
      if(debug){
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
888
	fprintf(stderr, "Ignoring plugin dir entry \"%s\""
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
889
		" with bad type or mode\n", filename);
890
      }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
891
      free(filename);
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
892
      continue;
893
    }
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
894
    
895
    plugin *p = getplugin(dirst->d_name);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
896
    if(p == NULL){
897
      perror("getplugin");
898
      free(filename);
899
      continue;
900
    }
901
    if(p->disabled){
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
902
      if(debug){
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
903
	fprintf(stderr, "Ignoring disabled plugin \"%s\"\n",
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
904
		dirst->d_name);
905
      }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
906
      free(filename);
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
907
      continue;
908
    }
32 by Teddy Hogeborn
* plugins.d/plugbasedclient.c (set_cloexec_flag): New function.
909
    {
910
      /* Add global arguments to argument list for this plugin */
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
911
      plugin *g = getplugin(NULL);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
912
      if(g != NULL){
913
	for(char **a = g->argv + 1; *a != NULL; a++){
914
	  if(not add_argument(p, *a)){
915
	    perror("add_argument");
916
	  }
917
	}
918
	/* Add global environment variables */
919
	for(char **e = g->environ; *e != NULL; e++){
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
920
	  if(not add_environment(p, *e, false)){
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
921
	    perror("add_environment");
922
	  }
923
	}
924
      }
925
    }
926
    /* If this plugin has any environment variables, we will call
927
       using execve and need to duplicate the environment from this
928
       process, too. */
929
    if(p->environ[0] != NULL){
930
      for(char **e = environ; *e != NULL; e++){
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
931
	if(not add_environment(p, *e, false)){
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
932
	  perror("add_environment");
933
	}
934
      }
935
    }
936
    
98 by Teddy Hogeborn
* plugin-runner.c (getplugin): Only copy "name" if not NULL. Free
937
    int pipefd[2];
237.2.130 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
938
    ret = (int)TEMP_FAILURE_RETRY(pipe(pipefd));
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
939
    if(ret == -1){
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
940
      perror("pipe");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
941
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
942
      goto fallback;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
943
    }
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
944
    /* Ask OS to automatic close the pipe on exec */
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
945
    ret = set_cloexec_flag(pipefd[0]);
946
    if(ret < 0){
947
      perror("set_cloexec_flag");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
948
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
949
      goto fallback;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
950
    }
951
    ret = set_cloexec_flag(pipefd[1]);
952
    if(ret < 0){
953
      perror("set_cloexec_flag");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
954
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
955
      goto fallback;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
956
    }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
957
    /* Block SIGCHLD until process is safely in process list */
237.2.130 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
958
    ret = (int)TEMP_FAILURE_RETRY(sigprocmask(SIG_BLOCK,
959
					      &sigchld_action.sa_mask,
960
					      NULL));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
961
    if(ret < 0){
962
      perror("sigprocmask");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
963
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
964
      goto fallback;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
965
    }
136 by Teddy Hogeborn
* plugin-runner.c (add_environment): Override existing environment
966
    /* Starting a new process to be watched */
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
967
    pid_t pid;
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
968
    do {
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
969
      pid = fork();
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
970
    } while(pid == -1 and errno == EINTR);
24.1.46 by Björn Påhlsson
mandos-client
971
    if(pid == -1){
972
      perror("fork");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
973
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
974
      goto fallback;
24.1.46 by Björn Påhlsson
mandos-client
975
    }
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
976
    if(pid == 0){
977
      /* this is the child process */
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
978
      ret = sigaction(SIGCHLD, &old_sigchld_action, NULL);
979
      if(ret < 0){
980
	perror("sigaction");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
981
	_exit(EX_OSERR);
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
982
      }
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
983
      ret = sigprocmask(SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
984
      if(ret < 0){
985
	perror("sigprocmask");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
986
	_exit(EX_OSERR);
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
987
      }
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
988
      
24.1.26 by Björn Påhlsson
tally count of used symbols
989
      ret = dup2(pipefd[1], STDOUT_FILENO); /* replace our stdout */
990
      if(ret == -1){
991
	perror("dup2");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
992
	_exit(EX_OSERR);
24.1.26 by Björn Påhlsson
tally count of used symbols
993
      }
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
994
      
995
      if(dirfd(dir) < 0){
996
	/* If dir has no file descriptor, we could not set FD_CLOEXEC
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
997
	   above and must now close it manually here. */
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
998
	closedir(dir);
33 by Teddy Hogeborn
* plugins.d/plugbasedclient.c (main): Close the pipe fd after dup2:ing
999
      }
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
1000
      if(p->environ[0] == NULL){
1001
	if(execv(filename, p->argv) < 0){
1002
	  perror("execv");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1003
	  _exit(EX_OSERR);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
1004
	}
1005
      } else {
1006
	if(execve(filename, p->argv, p->environ) < 0){
1007
	  perror("execve");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1008
	  _exit(EX_OSERR);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
1009
	}
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
1010
      }
1011
      /* no return */
1012
    }
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1013
    /* Parent process */
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
1014
    TEMP_FAILURE_RETRY(close(pipefd[1])); /* Close unused write end of
1015
					     pipe */
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1016
    free(filename);
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1017
    plugin *new_plugin = getplugin(dirst->d_name);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
1018
    if(new_plugin == NULL){
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1019
      perror("getplugin");
237.2.130 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
1020
      ret = (int)(TEMP_FAILURE_RETRY
1021
		  (sigprocmask(SIG_UNBLOCK, &sigchld_action.sa_mask,
1022
			       NULL)));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1023
      if(ret < 0){
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1024
        perror("sigprocmask");
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1025
      }
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1026
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1027
      goto fallback;
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
1028
    }
1029
    
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1030
    new_plugin->pid = pid;
1031
    new_plugin->fd = pipefd[0];
1032
    
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1033
    /* Unblock SIGCHLD so signal handler can be run if this process
1034
       has already completed */
237.2.130 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
1035
    ret = (int)TEMP_FAILURE_RETRY(sigprocmask(SIG_UNBLOCK,
1036
					      &sigchld_action.sa_mask,
1037
					      NULL));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1038
    if(ret < 0){
1039
      perror("sigprocmask");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1040
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1041
      goto fallback;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1042
    }
1043
    
237.2.141 by Teddy Hogeborn
* mandos (MandosServer): Fixed doc string.
1044
    FD_SET(new_plugin->fd, &rfds_all); /* Spurious warning from
1045
					  -Wconversion */
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1046
    
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
1047
    if(maxfd < new_plugin->fd){
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1048
      maxfd = new_plugin->fd;
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
1049
    }
13 by Björn Påhlsson
Added following support:
1050
  }
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1051
  
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
1052
  TEMP_FAILURE_RETRY(closedir(dir));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1053
  dir = NULL;
24.1.132 by Björn Påhlsson
Fixed a bug in fallback handling
1054
  free_plugin(getplugin(NULL));
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1055
  
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1056
  for(plugin *p = plugin_list; p != NULL; p = p->next){
1057
    if(p->pid != 0){
1058
      break;
1059
    }
1060
    if(p->next == NULL){
1061
      fprintf(stderr, "No plugin processes started. Incorrect plugin"
1062
	      " directory?\n");
1063
      free_plugin_list();
1064
    }
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1065
  }
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1066
  
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1067
  /* Main loop while running plugins exist */
1068
  while(plugin_list){
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1069
    fd_set rfds = rfds_all;
1070
    int select_ret = select(maxfd+1, &rfds, NULL, NULL, NULL);
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
1071
    if(select_ret == -1 and errno != EINTR){
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1072
      perror("select");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1073
      exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1074
      goto fallback;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1075
    }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1076
    /* OK, now either a process completed, or something can be read
1077
       from one of them */
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
1078
    for(plugin *proc = plugin_list; proc != NULL;){
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1079
      /* Is this process completely done? */
237.2.60 by Teddy Hogeborn
* plugin-runner.c (struct plugin.status): Changed type to "int".
1080
      if(proc->completed and proc->eof){
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1081
	/* Only accept the plugin output if it exited cleanly */
1082
	if(not WIFEXITED(proc->status)
1083
	   or WEXITSTATUS(proc->status) != 0){
1084
	  /* Bad exit by plugin */
237.2.75 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1085
	  
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1086
	  if(debug){
1087
	    if(WIFEXITED(proc->status)){
237.2.64 by Teddy Hogeborn
* plugin-runner.c (main): If debugging, print name of failed plugins.
1088
	      fprintf(stderr, "Plugin %s [%" PRIdMAX "] exited with"
1089
		      " status %d\n", proc->name,
1090
		      (intmax_t) (proc->pid),
60 by Teddy Hogeborn
* mandos-client.c (main): Cast pid_t to unsigned int before printing.
1091
		      WEXITSTATUS(proc->status));
237.2.56 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1092
	    } else if(WIFSIGNALED(proc->status)){
237.2.64 by Teddy Hogeborn
* plugin-runner.c (main): If debugging, print name of failed plugins.
1093
	      fprintf(stderr, "Plugin %s [%" PRIdMAX "] killed by"
237.2.119 by Teddy Hogeborn
* plugin-runner.c (main): When a plugin is killed by a signal, show
1094
		      " signal %d: %s\n", proc->name,
237.2.64 by Teddy Hogeborn
* plugin-runner.c (main): If debugging, print name of failed plugins.
1095
		      (intmax_t) (proc->pid),
237.2.119 by Teddy Hogeborn
* plugin-runner.c (main): When a plugin is killed by a signal, show
1096
		      WTERMSIG(proc->status),
1097
		      strsignal(WTERMSIG(proc->status)));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1098
	    } else if(WCOREDUMP(proc->status)){
237.2.64 by Teddy Hogeborn
* plugin-runner.c (main): If debugging, print name of failed plugins.
1099
	      fprintf(stderr, "Plugin %s [%" PRIdMAX "] dumped"
1100
		      " core\n", proc->name, (intmax_t) (proc->pid));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1101
	    }
1102
	  }
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1103
	  
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1104
	  /* Remove the plugin */
237.2.141 by Teddy Hogeborn
* mandos (MandosServer): Fixed doc string.
1105
	  FD_CLR(proc->fd, &rfds_all); /* Spurious warning from
1106
					  -Wconversion */
237.2.75 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1107
	  
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1108
	  /* Block signal while modifying process_list */
237.2.130 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
1109
	  ret = (int)TEMP_FAILURE_RETRY(sigprocmask
1110
					(SIG_BLOCK,
1111
					 &sigchld_action.sa_mask,
1112
					 NULL));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1113
	  if(ret < 0){
1114
	    perror("sigprocmask");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1115
	    exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1116
	    goto fallback;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1117
	  }
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
1118
	  
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1119
	  plugin *next_plugin = proc->next;
1120
	  free_plugin(proc);
1121
	  proc = next_plugin;
1122
	  
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1123
	  /* We are done modifying process list, so unblock signal */
237.2.130 by Teddy Hogeborn
* init.d-mandos: Bug fix: Correct the LSB header.
1124
	  ret = (int)(TEMP_FAILURE_RETRY
1125
		      (sigprocmask(SIG_UNBLOCK,
1126
				   &sigchld_action.sa_mask, NULL)));
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1127
	  if(ret < 0){
1128
	    perror("sigprocmask");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1129
	    exitstatus = EX_OSERR;
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1130
	    goto fallback;
1131
	  }
1132
	  
1133
	  if(plugin_list == NULL){
1134
	    break;
1135
	  }
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
1136
	  
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1137
	  continue;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1138
	}
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1139
	
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1140
	/* This process exited nicely, so print its buffer */
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1141
	
102 by Teddy Hogeborn
* plugin-runner.c (process): Set "completed" and "status" as volatile.
1142
	bool bret = print_out_password(proc->buffer,
1143
				       proc->buffer_length);
24.1.42 by Björn Påhlsson
Added fallback to mandos-client
1144
	if(not bret){
1145
	  perror("print_out_password");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1146
	  exitstatus = EX_IOERR;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1147
	}
24.1.54 by Björn Påhlsson
plugin-runner
1148
	goto fallback;
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1149
      }
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1150
      
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1151
      /* This process has not completed.  Does it have any output? */
237.2.141 by Teddy Hogeborn
* mandos (MandosServer): Fixed doc string.
1152
      if(proc->eof or not FD_ISSET(proc->fd, &rfds)){ /* Spurious
1153
							 warning from
1154
							 -Wconversion */
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1155
	/* This process had nothing to say at this time */
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
1156
	proc = proc->next;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1157
	continue;
1158
      }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1159
      /* Before reading, make the process' data buffer large enough */
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1160
      if(proc->buffer_length + BUFFER_SIZE > proc->buffer_size){
1161
	proc->buffer = realloc(proc->buffer, proc->buffer_size
1162
			       + (size_t) BUFFER_SIZE);
237.2.29 by Teddy Hogeborn
* plugin-runner.c: Only space changes.
1163
	if(proc->buffer == NULL){
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1164
	  perror("malloc");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1165
	  exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1166
	  goto fallback;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1167
	}
1168
	proc->buffer_size += BUFFER_SIZE;
1169
      }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1170
      /* Read from the process */
237.2.125 by Teddy Hogeborn
* plugin-runner.c (getplugin, add_environment, main): Handle EINTR
1171
      sret = TEMP_FAILURE_RETRY(read(proc->fd,
1172
				     proc->buffer
1173
				     + proc->buffer_length,
1174
				     BUFFER_SIZE));
237.2.17 by Teddy Hogeborn
Eliminate warning on 64-bit systems, thanks to Frans Pop
1175
      if(sret < 0){
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1176
	/* Read error from this process; ignore the error */
24.1.92 by Björn Påhlsson
Several memory leaks detected by valgrind fixed
1177
	proc = proc->next;
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1178
	continue;
1179
      }
237.2.17 by Teddy Hogeborn
Eliminate warning on 64-bit systems, thanks to Frans Pop
1180
      if(sret == 0){
34 by Teddy Hogeborn
* plugbasedclient.c (main): Check if plugin dir could be opened. Set
1181
	/* got EOF */
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1182
	proc->eof = true;
1183
      } else {
237.2.17 by Teddy Hogeborn
Eliminate warning on 64-bit systems, thanks to Frans Pop
1184
	proc->buffer_length += (size_t) sret;
13 by Björn Påhlsson
Added following support:
1185
      }
1186
    }
1187
  }
237.2.75 by Teddy Hogeborn
* plugin-runner.c: Whitespace changes only.
1188
  
1189
  
24.1.54 by Björn Påhlsson
plugin-runner
1190
 fallback:
24.1.42 by Björn Påhlsson
Added fallback to mandos-client
1191
  
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1192
  if(plugin_list == NULL or (exitstatus != EXIT_SUCCESS
1193
			     and exitstatus != EX_OK)){
102 by Teddy Hogeborn
* plugin-runner.c (process): Set "completed" and "status" as volatile.
1194
    /* Fallback if all plugins failed, none are found or an error
1195
       occured */
24.1.42 by Björn Påhlsson
Added fallback to mandos-client
1196
    bool bret;
1197
    fprintf(stderr, "Going to fallback mode using getpass(3)\n");
1198
    char *passwordbuffer = getpass("Password: ");
168 by Teddy Hogeborn
* initramfs-tools-hook: Use long options where available. Use only
1199
    size_t len = strlen(passwordbuffer);
1200
    /* Strip trailing newline */
1201
    if(len > 0 and passwordbuffer[len-1] == '\n'){
1202
      passwordbuffer[len-1] = '\0'; /* not strictly necessary */
1203
      len--;
1204
    }
1205
    bret = print_out_password(passwordbuffer, len);
24.1.42 by Björn Påhlsson
Added fallback to mandos-client
1206
    if(not bret){
1207
      perror("print_out_password");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1208
      exitstatus = EX_IOERR;
24.1.42 by Björn Påhlsson
Added fallback to mandos-client
1209
    }
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1210
  }
24.1.42 by Björn Påhlsson
Added fallback to mandos-client
1211
  
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1212
  /* Restore old signal handler */
24.1.54 by Björn Påhlsson
plugin-runner
1213
  ret = sigaction(SIGCHLD, &old_sigchld_action, NULL);
1214
  if(ret == -1){
1215
    perror("sigaction");
237.2.162 by Teddy Hogeborn
* Makefile (BROKEN_PIE): Add comment.
1216
    exitstatus = EX_OSERR;
24.1.54 by Björn Påhlsson
plugin-runner
1217
  }
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1218
  
24.1.54 by Björn Påhlsson
plugin-runner
1219
  if(custom_argv != NULL){
24.1.67 by Björn Påhlsson
transformed a function to a part of main
1220
    for(char **arg = custom_argv+1; *arg != NULL; arg++){
24.1.54 by Björn Påhlsson
plugin-runner
1221
      free(*arg);
78 by Teddy Hogeborn
Add feature to specify custom environment variables for plugins.
1222
    }
24.1.54 by Björn Påhlsson
plugin-runner
1223
    free(custom_argv);
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1224
  }
1225
  
1226
  if(dir != NULL){
1227
    closedir(dir);
1228
  }
1229
  
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1230
  /* Kill the processes */
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1231
  for(plugin *p = plugin_list; p != NULL; p = p->next){
1232
    if(p->pid != 0){
1233
      close(p->fd);
1234
      ret = kill(p->pid, SIGTERM);
1235
      if(ret == -1 and errno != ESRCH){
1236
	/* Set-uid proccesses might not get closed */
1237
	perror("kill");
1238
      }
24.1.26 by Björn Påhlsson
tally count of used symbols
1239
    }
13 by Björn Påhlsson
Added following support:
1240
  }
1241
  
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1242
  /* Wait for any remaining child processes to terminate */
237.2.126 by Teddy Hogeborn
* plugin-runner.c: Minor stylistic changes.
1243
  do {
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1244
    ret = wait(NULL);
1245
  } while(ret >= 0);
1246
  if(errno != ECHILD){
1247
    perror("wait");
1248
  }
210 by Teddy Hogeborn
* debian/mandos-client.postinst: Change home directory to
1249
  
24.1.76 by Björn Påhlsson
Rearranged so plugins and processes is the same thing
1250
  free_plugin_list();
1251
  
24.1.69 by Björn Påhlsson
added configfile as a optional argument to plugin-runner
1252
  free(plugindir);
1253
  free(argfile);
35 by Teddy Hogeborn
* plugbasedclient.c (struct process): New fields "eof", "completed",
1254
  
31 by Teddy Hogeborn
* plugins.d/plugbasedclient.c: Update include file comments.
1255
  return exitstatus;
13 by Björn Påhlsson
Added following support:
1256
}