/mandos/release

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/release

« back to all changes in this revision

Viewing changes to plugin-runner.c

Merge release from release branch.

Show diffs side-by-side

added added

removed removed

Lines of Context:
plugin-runner.c
2
2
/*
3
3
 * Mandos plugin runner - Run Mandos plugins
4
4
 *
5
 
 * Copyright © 2007-2008 Teddy Hogeborn & Björn Påhlsson
 
5
 * Copyright © 2008,2009 Teddy Hogeborn
 
6
 * Copyright © 2008,2009 Björn Påhlsson
6
7
 * 
7
8
 * This program is free software: you can redistribute it and/or
8
9
 * modify it under the terms of the GNU General Public License as
27
28
#include <stdlib.h>             /* malloc(), exit(), EXIT_FAILURE,
28
29
                                   EXIT_SUCCESS, realloc() */
29
30
#include <stdbool.h>            /* bool, true, false */
30
 
#include <stdio.h>              /* perror, popen(), fileno(),
31
 
                                   fprintf(), stderr, STDOUT_FILENO */
 
31
#include <stdio.h>              /* perror, fileno(), fprintf(),
 
32
                                   stderr, STDOUT_FILENO */
32
33
#include <sys/types.h>          /* DIR, opendir(), stat(), struct
33
34
                                   stat, waitpid(), WIFEXITED(),
34
35
                                   WEXITSTATUS(), wait(), pid_t,
46
47
                                   fcntl(), setuid(), setgid(),
47
48
                                   F_GETFD, F_SETFD, FD_CLOEXEC,
48
49
                                   access(), pipe(), fork(), close()
49
 
                                   dup2, STDOUT_FILENO, _exit(),
 
50
                                   dup2(), STDOUT_FILENO, _exit(),
50
51
                                   execv(), write(), read(),
51
52
                                   close() */
52
53
#include <fcntl.h>              /* fcntl(), F_GETFD, F_SETFD,
69
70
#define PDIR "/lib/mandos/plugins.d"
70
71
#define AFILE "/conf/conf.d/mandos/plugin-runner.conf"
71
72
 
72
 
const char *argp_program_version = "plugin-runner 1.0";
 
73
const char *argp_program_version = "plugin-runner " VERSION;
73
74
const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";
74
75
 
75
76
typedef struct plugin{
700
701
      
701
702
      const char const *bad_suffixes[] = { "~", "#", ".dpkg-new",
702
703
                                           ".dpkg-old",
 
704
                                           ".dpkg-bak",
703
705
                                           ".dpkg-divert", NULL };
704
706
      for(const char **pre = bad_prefixes; *pre != NULL; pre++){
705
707
        size_t pre_len = strlen(*pre);
846
848
        perror("sigaction");
847
849
        _exit(EXIT_FAILURE);
848
850
      }
849
 
      ret = sigprocmask (SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);
 
851
      ret = sigprocmask(SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);
850
852
      if(ret < 0){
851
853
        perror("sigprocmask");
852
854
        _exit(EXIT_FAILURE);
853
855
      }
854
 
 
 
856
      
855
857
      ret = dup2(pipefd[1], STDOUT_FILENO); /* replace our stdout */
856
858
      if(ret == -1){
857
859
        perror("dup2");
907
909
    if (maxfd < new_plugin->fd){
908
910
      maxfd = new_plugin->fd;
909
911
    }
910
 
    
911
912
  }
912
913
  
913
914
  closedir(dir);
914
915
  dir = NULL;
915
 
 
 
916
  
916
917
  for(plugin *p = plugin_list; p != NULL; p = p->next){
917
918
    if(p->pid != 0){
918
919
      break;
923
924
      free_plugin_list();
924
925
    }
925
926
  }
926
 
 
 
927
  
927
928
  /* Main loop while running plugins exist */
928
929
  while(plugin_list){
929
930
    fd_set rfds = rfds_all;
969
970
            goto fallback;
970
971
          }
971
972
          
 
973
          plugin *next_plugin = proc->next;
 
974
          free_plugin(proc);
 
975
          proc = next_plugin;
 
976
          
972
977
          /* We are done modifying process list, so unblock signal */
973
978
          ret = sigprocmask (SIG_UNBLOCK, &sigchld_action.sa_mask,
974
979
                             NULL);
982
987
            break;
983
988
          }
984
989
          
985
 
          plugin *next_plugin = proc->next;
986
 
          free_plugin(proc);
987
 
          proc = next_plugin;
988
990
          continue;
989
991
        }
990
992
        
991
993
        /* This process exited nicely, so print its buffer */
992
 
 
 
994
        
993
995
        bool bret = print_out_password(proc->buffer,
994
996
                                       proc->buffer_length);
995
997
        if(not bret){
1061
1063
    perror("sigaction");
1062
1064
    exitstatus = EXIT_FAILURE;
1063
1065
  }
1064
 
 
 
1066
  
1065
1067
  if(custom_argv != NULL){
1066
1068
    for(char **arg = custom_argv+1; *arg != NULL; arg++){
1067
1069
      free(*arg);
1073
1075
    closedir(dir);
1074
1076
  }
1075
1077
  
1076
 
  /* Free the process list and kill the processes */
 
1078
  /* Kill the processes */
1077
1079
  for(plugin *p = plugin_list; p != NULL; p = p->next){
1078
1080
    if(p->pid != 0){
1079
1081
      close(p->fd);
1092
1094
  if(errno != ECHILD){
1093
1095
    perror("wait");
1094
1096
  }
1095
 
 
 
1097
  
1096
1098
  free_plugin_list();
1097
1099
  
1098
1100
  free(plugindir);