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  • Committer: Teddy Hogeborn
  • Date: 2015-08-10 09:00:23 UTC
  • Revision ID: teddy@recompile.se-20150810090023-fz6vjqr7zf33e2tf
Support the standard org.freedesktop.DBus.ObjectManager interface.

Now that the D-Bus standard has an interface to keep track of new and
removed objects, use that instead of our own methods.  This deprecates
our D-Bus methods "GetAllClients" and "GetAllClientsWithProperties"
and the signals "ClientAdded" and "ClientRemoved", all on the server
interface "se.recompile.Mandos".

* DBUS-API: Removed references to deprecated methods and signals;
  insert reference to the org.freedesktop.DBus.ObjectManager
  interface.
* mandos (DBusObjectWithProperties._get_all_interface_names): New.
  (dbus.OBJECT_MANAGER_IFACE): If not present, monkey patch.
  (DBusObjectWithObjectManager): New.
  (main/MandosDBusService): Inherit from DBusObjectWithObjectManager.
  (main/MandosDBusService.ClientRemoved): Annotate as deprecated.
  (main/MandosDBusService.GetAllClients): - '' -
  (main/MandosDBusService.GetAllClientsWithProperties): Annotate as
                                                        deprecated.
                                                        Also only
                                                        return
                                                        properties on
                                                        client
                                                        interface.
  (main/MandosDBusService.RemoveClient): Call client_removed_signal
                                         instead of ClientRemoved.
  (main/MandosDBusService.GetManagedObjects): New.
  (main/MandosDBusService.client_added_signal): New.
  (main/MandosDBusService.client_removed_signal): - '' -
  (main/cleanup): Call "client_removed_signal" instead of sending
                  "ClientRemoved" signal directly.
  (main): Call "client_added_signal" instead of sending "ClientAdded"
          signal directly.
* mandos-ctl: Use GetManagedObjects instead of
              GetAllClientsWithProperties.  Also, show better error
              message in case of failure to connect to the D-Bus

* mandos-monitor (MandosClientPropertyCache.properties_changed):
  Bug fix; only update properties on client interface.
  (UserInterface.find_and_remove_client): Change to accept arguments
                                          from InterfacesRemoved
                                          signal.  Also, bug fix:
                                          working error message when
                                          removing unknown client.
  (UserInterface.add_new_client): Change to accept arguments from
                                  InterfacesRemoved signal.  Pass
                                  properties to MandosClientWidget
                                  constructor.
  (UserInterface.run): Connect find_and_remove_client method to
                       InterfacesRemoved signal and the add_new_client
                       method to the InterfacesAdded signal.

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Lines of Context:
plugin-runner.c
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/*
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 * Mandos plugin runner - Run Mandos plugins
4
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 *
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 * Copyright © 2008-2016 Teddy Hogeborn
6
 
 * Copyright © 2008-2016 Björn Påhlsson
 
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 * Copyright © 2008-2015 Teddy Hogeborn
 
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 * Copyright © 2008-2015 Björn Påhlsson
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 * 
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 * This program is free software: you can redistribute it and/or
9
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 * modify it under the terms of the GNU General Public License as
37
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#include <sys/select.h>         /* fd_set, select(), FD_ZERO(),
38
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                                   FD_SET(), FD_ISSET(), FD_CLR */
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#include <sys/wait.h>           /* wait(), waitpid(), WIFEXITED(),
40
 
                                   WEXITSTATUS(), WTERMSIG() */
 
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                                   WEXITSTATUS(), WTERMSIG(),
 
41
                                   WCOREDUMP() */
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#include <sys/stat.h>           /* struct stat, fstat(), S_ISREG() */
42
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#include <iso646.h>             /* and, or, not */
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#include <dirent.h>             /* struct dirent, scandirat() */
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        custom_argc += 1;
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        {
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          char **new_argv = realloc(custom_argv, sizeof(char *)
703
 
                                    * ((size_t)custom_argc + 1));
 
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                                    * ((unsigned int)
 
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                                       custom_argc + 1));
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          if(new_argv == NULL){
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            error(0, errno, "realloc");
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            exitstatus = EX_OSERR;
807
809
  
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  if(getuid() == 0){
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    /* Work around Debian bug #633582:
810
 
       <https://bugs.debian.org/633582> */
 
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       <http://bugs.debian.org/633582> */
811
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    int plugindir_fd = open(/* plugindir or */ PDIR, O_RDONLY);
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    if(plugindir_fd == -1){
813
815
      if(errno != ENOENT){
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    return 1;
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  }
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894
  
 
895
#ifdef __GLIBC__
 
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#if __GLIBC_PREREQ(2, 15)
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  int numplugins = scandirat(dir_fd, ".", &direntries, good_name,
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                             alphasort);
 
899
#else  /* not __GLIBC_PREREQ(2, 15) */
 
900
  int numplugins = scandir(plugindir != NULL ? plugindir : PDIR,
 
901
                           &direntries, good_name, alphasort);
 
902
#endif  /* not __GLIBC_PREREQ(2, 15) */
 
903
#else   /* not __GLIBC__ */
 
904
  int numplugins = scandir(plugindir != NULL ? plugindir : PDIR,
 
905
                           &direntries, good_name, alphasort);
 
906
#endif  /* not __GLIBC__ */
895
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  if(numplugins == -1){
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    error(0, errno, "Could not scan plugin dir");
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    direntries = NULL;
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      goto fallback;
1104
1116
    }
1105
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1106
 
    FD_SET(new_plugin->fd, &rfds_all);
 
1118
#if defined (__GNUC__) and defined (__GLIBC__)
 
1119
#if not __GLIBC_PREREQ(2, 16)
 
1120
#pragma GCC diagnostic push
 
1121
#pragma GCC diagnostic ignored "-Wsign-conversion"
 
1122
#endif
 
1123
#endif
 
1124
    FD_SET(new_plugin->fd, &rfds_all); /* Spurious warning from
 
1125
                                          -Wconversion in GNU libc
 
1126
                                          before 2.16 */
 
1127
#if defined (__GNUC__) and defined (__GLIBC__)
 
1128
#if not __GLIBC_PREREQ(2, 16)
 
1129
#pragma GCC diagnostic pop
 
1130
#endif
 
1131
#endif
1107
1132
    
1108
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    if(maxfd < new_plugin->fd){
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      maxfd = new_plugin->fd;
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                      (intmax_t) (proc->pid),
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                      WTERMSIG(proc->status),
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                      strsignal(WTERMSIG(proc->status)));
 
1186
            } else if(WCOREDUMP(proc->status)){
 
1187
              fprintf(stderr, "Plugin %s [%" PRIdMAX "] dumped"
 
1188
                      " core\n", proc->name, (intmax_t) (proc->pid));
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            }
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1190
          }
1163
1191
          
1164
1192
          /* Remove the plugin */
1165
 
          FD_CLR(proc->fd, &rfds_all);
 
1193
#if defined (__GNUC__) and defined (__GLIBC__)
 
1194
#if not __GLIBC_PREREQ(2, 16)
 
1195
#pragma GCC diagnostic push
 
1196
#pragma GCC diagnostic ignored "-Wsign-conversion"
 
1197
#endif
 
1198
#endif
 
1199
          FD_CLR(proc->fd, &rfds_all); /* Spurious warning from
 
1200
                                          -Wconversion in GNU libc
 
1201
                                          before 2.16 */
 
1202
#if defined (__GNUC__) and defined (__GLIBC__)
 
1203
#if not __GLIBC_PREREQ(2, 16)
 
1204
#pragma GCC diagnostic pop
 
1205
#endif
 
1206
#endif
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          /* Block signal while modifying process_list */
1168
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          ret = (int)TEMP_FAILURE_RETRY(sigprocmask
1208
1249
      }
1209
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      /* This process has not completed.  Does it have any output? */
1211
 
      if(proc->eof or not FD_ISSET(proc->fd, &rfds)){
 
1252
#if defined (__GNUC__) and defined (__GLIBC__)
 
1253
#if not __GLIBC_PREREQ(2, 16)
 
1254
#pragma GCC diagnostic push
 
1255
#pragma GCC diagnostic ignored "-Wsign-conversion"
 
1256
#endif
 
1257
#endif
 
1258
      if(proc->eof or not FD_ISSET(proc->fd, &rfds)){ /* Spurious
 
1259
                                                         warning from
 
1260
                                                         -Wconversion
 
1261
                                                         in GNU libc
 
1262
                                                         before
 
1263
                                                         2.16 */
 
1264
#if defined (__GNUC__) and defined (__GLIBC__)
 
1265
#if not __GLIBC_PREREQ(2, 16)
 
1266
#pragma GCC diagnostic pop
 
1267
#endif
 
1268
#endif
1212
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        /* This process had nothing to say at this time */
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        proc = proc->next;
1214
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        continue;