src/networkctl/zone.c

   1 /*#############################################################################
   2 #                                                                             #
   3 # IPFire.org - A linux based firewall                                         #
   4 # Copyright (C) 2023 IPFire Network Development Team                          #
   5 #                                                                             #
   6 # This program is free software: you can redistribute it and/or modify        #
   7 # it under the terms of the GNU General Public License as published by        #
   8 # the Free Software Foundation, either version 3 of the License, or           #
   9 # (at your option) any later version.                                         #
  10 #                                                                             #
  11 # This program is distributed in the hope that it will be useful,             #
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  14 # GNU General Public License for more details.                                #
  15 #                                                                             #
  16 # You should have received a copy of the GNU General Public License           #
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  18 #                                                                             #
  19 #############################################################################*/
  20
  21 #include <systemd/sd-bus.h>
  22
  23 #include "command.h"
  24 #include "zone.h"
  25
  26 typedef int (*networkctl_zone_walk_callback)
  27         (sd_bus* bus, const char* path, const char* name, void* data);
  28
  29 static int networkctl_zone_walk(sd_bus* bus,
  30                 networkctl_zone_walk_callback callback, void* data) {
  31         sd_bus_message* reply = NULL;
  32         sd_bus_error error = SD_BUS_ERROR_NULL;
  33         int r;
  34
  35         // Call ListZones
  36         r = sd_bus_call_method(bus, "org.ipfire.network1", "/org/ipfire/network1",
  37                 "org.ipfire.network1", "ListZones", &error, &reply, "");
  38         if (r < 0) {
  39                 fprintf(stderr, "ListZones call failed: %m\n");
  40                 goto ERROR;
  41         }
  42
  43         const char* name = NULL;
  44         const char* path = NULL;
  45
  46         // Open the container
  47         r = sd_bus_message_enter_container(reply, 'a', "(so)");
  48         if (r < 0) {
  49                 fprintf(stderr, "Could not open container: %m\n");
  50                 goto ERROR;
  51         }
  52
  53         // Iterate over all zones
  54         for (;;) {
  55                 r = sd_bus_message_read(reply, "(so)", &name, &path);
  56                 if (r < 0)
  57                         goto ERROR;
  58
  59                 // Break if we reached the end of the container
  60                 if (r == 0)
  61                         break;
  62
  63                 // Call the callback
  64                 r = callback(bus, path, name, data);
  65                 if (r)
  66                         goto ERROR;
  67         }
  68
  69         // Close the container
  70         sd_bus_message_exit_container(reply);
  71
  72 ERROR:
  73         if (reply)
  74                 sd_bus_message_unref(reply);
  75         sd_bus_error_free(&error);
  76
  77         return r;
  78 }
  79
  80 static int __networkctl_zone_list(sd_bus* bus, const char* path, const char* name, void* data) {
  81         printf("%s\n", name);
  82
  83         return 0;
  84 }
  85
  86 static int networkctl_zone_list(sd_bus* bus, int argc, char* argv[]) {
  87         return networkctl_zone_walk(bus, __networkctl_zone_list, NULL);
  88 }
  89
  90 int networkctl_zone(sd_bus* bus, int argc, char* argv[]) {
  91         static const struct command commands[] = {
  92                 { "list", 0, networkctl_zone_list },
  93                 { NULL },
  94         };
  95
  96         return command_dispatch(bus, commands, argc, argv);
  97 }