src/network/networkd-link-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 "bus-util.h"
  23 #include "strv.h"
  24
  25 #include "networkd.h"
  26 #include "networkd-link.h"
  27
  28 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_operational_state, link_operstate, LinkOperationalState);
  29 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_administrative_state, link_state, LinkState);
  30
  31 const sd_bus_vtable link_vtable[] = {
  32         SD_BUS_VTABLE_START(0),
  33
  34         SD_BUS_PROPERTY("OperationalState", "s", property_get_operational_state, offsetof(Link, operstate), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
  35         SD_BUS_PROPERTY("AdministrativeState", "s", property_get_administrative_state, offsetof(Link, state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
  36
  37         SD_BUS_VTABLE_END
  38 };
  39
  40 static char *link_bus_path(Link *link) {
  41         char *p;
  42
  43         assert(link);
  44         assert(link->ifindex > 0);
  45
  46         asprintf(&p, "/org/freedesktop/network1/link/%d", link->ifindex);
  47
  48         return p;
  49 }
  50
  51 int link_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
  52         _cleanup_strv_free_ char **l = NULL;
  53         Manager *m = userdata;
  54         Link *link;
  55         Iterator i;
  56         int r;
  57
  58         assert(bus);
  59         assert(path);
  60         assert(m);
  61         assert(nodes);
  62
  63         HASHMAP_FOREACH(link, m->links, i) {
  64                 char *p;
  65
  66                 p = link_bus_path(link);
  67                 if (!p)
  68                         return -ENOMEM;
  69
  70                 r = strv_consume(&l, p);
  71                 if (r < 0)
  72                         return r;
  73         }
  74
  75         *nodes = l;
  76         l = NULL;
  77
  78         return 1;
  79 }
  80
  81 int link_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
  82         Manager *m = userdata;
  83         Link *link;
  84         int ifindex, r;
  85
  86         assert(bus);
  87         assert(path);
  88         assert(interface);
  89         assert(m);
  90         assert(found);
  91
  92         if (sscanf(path, "/org/freedesktop/network1/link/%d", &ifindex) != 1)
  93                 return 0;
  94
  95         r = link_get(m, ifindex, &link);
  96         if (r < 0)
  97                 return 0;
  98
  99         *found = link;
 100
 101         return 1;
 102 }
 103
 104 int link_send_changed(Link *link, const char *property, ...) {
 105         _cleanup_free_ char *p = NULL;
 106         char **l;
 107
 108         assert(link);
 109         assert(link->manager);
 110
 111         if (!link->manager->bus)
 112                 return 0; /* replace with assert when we have kdbus */
 113
 114         l = strv_from_stdarg_alloca(property);
 115
 116         p = link_bus_path(link);
 117         if (!p)
 118                 return -ENOMEM;
 119
 120         return sd_bus_emit_properties_changed_strv(
 121                         link->manager->bus,
 122                         p,
 123                         "org.freedesktop.network1.Link",
 124                         l);
 125 }