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Viewing changes to plugin-runner.c

  • Committer: Teddy Hogeborn
  • Date: 2015-06-28 16:35:27 UTC
  • mto: This revision was merged to the branch mainline in revision 759.
  • Revision ID: teddy@recompile.se-20150628163527-cky0ec59zew7teua
Add a plugin helper directory, available to all plugins.

* Makefile (PLUGIN_HELPERS): New; list of plugin helpers.
  (CPROGS): Appended "$(PLUGIN_HELPERS)".
* initramfs-tools-hook: Create new plugin helper directory, and copy
                        plugin helpers provided by the system and/or
                        by the local administrator.
  (PLUGINHELPERDIR): New.
* plugin-runner.c: Take new --plugin-helper-dir option and provide
                   environment variable to all plugins.
  (PHDIR): New; set to "/lib/mandos/plugin-helpers".
  (main/pluginhelperdir): New.
  (main/options): New option "--plugin-helper-dir".
  (main/parse_opt, main/parse_opt_config_file): Accept new option.
  (main): Use new option to set MANDOSPLUGINHELPERDIR environment
          variable as if using --global-env MANDOSPLUGINHELPERDIR=...
* plugin-runner.xml: Document new --plugin-helper-dir option.
  (SYNOPSIS, OPTIONS): Add "--plugin-helper-dir" option.
  (PLUGINS/WRITING PLUGINS): Document new environment variable
                             available to plugins.
  (ENVIRONMENT): Document new environment variable
                 "MANDOSPLUGINHELPERDIR" affected by the new
                 --plugin-helper-dir option.

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Lines of Context:
plugin-runner.c
827
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          }
828
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        }
829
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      }
830
 
      close(plugindir_fd);
 
830
      TEMP_FAILURE_RETRY(close(plugindir_fd));
831
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    }
832
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  }
833
833
  
925
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    ret = (int)TEMP_FAILURE_RETRY(fstat(plugin_fd, &st));
926
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    if(ret == -1){
927
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      error(0, errno, "stat");
928
 
      close(plugin_fd);
 
928
      TEMP_FAILURE_RETRY(close(plugin_fd));
929
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      free(direntries[i]);
930
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      continue;
931
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    }
940
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                plugindir != NULL ? plugindir : PDIR,
941
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                direntries[i]->d_name);
942
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      }
943
 
      close(plugin_fd);
 
943
      TEMP_FAILURE_RETRY(close(plugin_fd));
944
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      free(direntries[i]);
945
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      continue;
946
946
    }
948
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    plugin *p = getplugin(direntries[i]->d_name);
949
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    if(p == NULL){
950
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      error(0, errno, "getplugin");
951
 
      close(plugin_fd);
 
951
      TEMP_FAILURE_RETRY(close(plugin_fd));
952
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      free(direntries[i]);
953
953
      continue;
954
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    }
957
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        fprintf(stderr, "Ignoring disabled plugin \"%s\"\n",
958
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                direntries[i]->d_name);
959
959
      }
960
 
      close(plugin_fd);
 
960
      TEMP_FAILURE_RETRY(close(plugin_fd));
961
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      free(direntries[i]);
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      continue;
963
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    }
1003
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    if(pipefd[0] >= FD_SETSIZE){
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      fprintf(stderr, "pipe()[0] (%d) >= FD_SETSIZE (%d)", pipefd[0],
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              FD_SETSIZE);
1006
 
      close(pipefd[0]);
1007
 
      close(pipefd[1]);
 
1006
      TEMP_FAILURE_RETRY(close(pipefd[0]));
 
1007
      TEMP_FAILURE_RETRY(close(pipefd[1]));
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      exitstatus = EX_OSERR;
1009
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      free(direntries[i]);
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      goto fallback;
1014
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    ret = set_cloexec_flag(pipefd[0]);
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    if(ret < 0){
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      error(0, errno, "set_cloexec_flag");
1017
 
      close(pipefd[0]);
1018
 
      close(pipefd[1]);
 
1017
      TEMP_FAILURE_RETRY(close(pipefd[0]));
 
1018
      TEMP_FAILURE_RETRY(close(pipefd[1]));
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      exitstatus = EX_OSERR;
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      free(direntries[i]);
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      goto fallback;
1023
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    ret = set_cloexec_flag(pipefd[1]);
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    if(ret < 0){
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      error(0, errno, "set_cloexec_flag");
1026
 
      close(pipefd[0]);
1027
 
      close(pipefd[1]);
 
1026
      TEMP_FAILURE_RETRY(close(pipefd[0]));
 
1027
      TEMP_FAILURE_RETRY(close(pipefd[1]));
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      exitstatus = EX_OSERR;
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      free(direntries[i]);
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      goto fallback;
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      error(0, errno, "fork");
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      TEMP_FAILURE_RETRY(sigprocmask(SIG_UNBLOCK,
1051
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                                     &sigchld_action.sa_mask, NULL));
1052
 
      close(pipefd[0]);
1053
 
      close(pipefd[1]);
 
1052
      TEMP_FAILURE_RETRY(close(pipefd[0]));
 
1053
      TEMP_FAILURE_RETRY(close(pipefd[1]));
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      exitstatus = EX_OSERR;
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      free(direntries[i]);
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      goto fallback;
1084
1084
      /* no return */
1085
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    }
1086
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    /* Parent process */
1087
 
    close(pipefd[1]);           /* Close unused write end of pipe */
1088
 
    close(plugin_fd);
 
1087
    TEMP_FAILURE_RETRY(close(pipefd[1])); /* Close unused write end of
 
1088
                                             pipe */
 
1089
    TEMP_FAILURE_RETRY(close(plugin_fd));
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    plugin *new_plugin = getplugin(direntries[i]->d_name);
1090
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    if(new_plugin == NULL){
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      error(0, errno, "getplugin");
1137
1138
  
1138
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  free(direntries);
1139
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  direntries = NULL;
1140
 
  close(dir_fd);
 
1141
  TEMP_FAILURE_RETRY(close(dir_fd));
1141
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  dir_fd = -1;
1142
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  free_plugin(getplugin(NULL));
1143
1144
  
1341
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  free(direntries);
1342
1343
  
1343
1344
  if(dir_fd != -1){
1344
 
    close(dir_fd);
 
1345
    TEMP_FAILURE_RETRY(close(dir_fd));
1345
1346
  }
1346
1347
  
1347
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  /* Kill the processes */