src/network/networkd-network-bus.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2015 Tom Gundersen
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU Lesser General Public License as published by
  10   the Free Software Foundation; either version 2.1 of the License, or
  11   (at your option) any later version.
  12
  13   systemd 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   Lesser General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include "strv.h"
  23
  24 #include "networkd.h"
  25
  26 static int property_get_ether_addrs(
  27                 sd_bus *bus,
  28                 const char *path,
  29                 const char *interface,
  30                 const char *property,
  31                 sd_bus_message *reply,
  32                 void *userdata,
  33                 sd_bus_error *error) {
  34
  35         Network *n = userdata;
  36         const char *ether = NULL;
  37         int r;
  38
  39         assert(bus);
  40         assert(reply);
  41         assert(n);
  42
  43         if (n->match_mac)
  44                 ether = ether_ntoa(n->match_mac);
  45
  46         r = sd_bus_message_open_container(reply, 'a', "s");
  47         if (r < 0)
  48                 return r;
  49
  50         if (ether) {
  51                 r = sd_bus_message_append(reply, "s", strempty(ether));
  52                 if (r < 0)
  53                         return r;
  54         }
  55
  56         r = sd_bus_message_close_container(reply);
  57         if (r < 0)
  58                 return r;
  59
  60         return 1;
  61 }
  62
  63 const sd_bus_vtable network_vtable[] = {
  64         SD_BUS_VTABLE_START(0),
  65
  66         SD_BUS_PROPERTY("Description", "s", NULL, offsetof(Network, description), SD_BUS_VTABLE_PROPERTY_CONST),
  67         SD_BUS_PROPERTY("SourcePath", "s", NULL, offsetof(Network, filename), SD_BUS_VTABLE_PROPERTY_CONST),
  68         SD_BUS_PROPERTY("MatchMAC", "as", property_get_ether_addrs, offsetof(Network, match_mac), SD_BUS_VTABLE_PROPERTY_CONST),
  69         SD_BUS_PROPERTY("MatchPath", "as", NULL, offsetof(Network, match_path), SD_BUS_VTABLE_PROPERTY_CONST),
  70         SD_BUS_PROPERTY("MatchDriver", "as", NULL, offsetof(Network, match_driver), SD_BUS_VTABLE_PROPERTY_CONST),
  71         SD_BUS_PROPERTY("MatchType", "as", NULL, offsetof(Network, match_type), SD_BUS_VTABLE_PROPERTY_CONST),
  72         SD_BUS_PROPERTY("MatchName", "as", NULL, offsetof(Network, match_name), SD_BUS_VTABLE_PROPERTY_CONST),
  73
  74         SD_BUS_VTABLE_END
  75 };
  76
  77 static char *network_bus_path(Network *network) {
  78         _cleanup_free_ char *name = NULL;
  79         char *networkname, *d, *path;
  80         int r;
  81
  82         assert(network);
  83         assert(network->filename);
  84
  85         name = strdup(network->filename);
  86         if (!name)
  87                 return NULL;
  88
  89         networkname = basename(name);
  90
  91         d = strrchr(networkname, '.');
  92         if (!d)
  93                 return NULL;
  94
  95         assert(streq(d, ".network"));
  96
  97         *d = '\0';
  98
  99         r = sd_bus_path_encode("/org/freedesktop/network1/network", networkname, &path);
 100         if (r < 0)
 101                 return NULL;
 102
 103         return path;
 104 }
 105
 106 int network_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
 107         _cleanup_strv_free_ char **l = NULL;
 108         Manager *m = userdata;
 109         Network *network;
 110         int r;
 111
 112         assert(bus);
 113         assert(path);
 114         assert(m);
 115         assert(nodes);
 116
 117         LIST_FOREACH(networks, network, m->networks) {
 118                 char *p;
 119
 120                 p = network_bus_path(network);
 121                 if (!p)
 122                         return -ENOMEM;
 123
 124                 r = strv_consume(&l, p);
 125                 if (r < 0)
 126                         return r;
 127         }
 128
 129         *nodes = l;
 130         l = NULL;
 131
 132         return 1;
 133 }
 134
 135 int network_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
 136         Manager *m = userdata;
 137         Network *network;
 138         _cleanup_free_ char *name = NULL;
 139         int r;
 140
 141         assert(bus);
 142         assert(path);
 143         assert(interface);
 144         assert(m);
 145         assert(found);
 146
 147         r = sd_bus_path_decode(path, "/org/freedesktop/network1/network", &name);
 148         if (r < 0)
 149                 return 0;
 150
 151         r = network_get_by_name(m, name, &network);
 152         if (r < 0)
 153                 return 0;
 154
 155         *found = network;
 156
 157         return 1;
 158 }