src/network/networkd-network-bus.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include "alloc-util.h"
   4 #include "ether-addr-util.h"
   5 #include "networkd-manager.h"
   6 #include "string-util.h"
   7 #include "strv.h"
   8
   9 static int property_get_ether_addrs(
  10                 sd_bus *bus,
  11                 const char *path,
  12                 const char *interface,
  13                 const char *property,
  14                 sd_bus_message *reply,
  15                 void *userdata,
  16                 sd_bus_error *error) {
  17
  18         char buf[ETHER_ADDR_TO_STRING_MAX];
  19         const struct ether_addr *p;
  20         Iterator i;
  21         Set *s;
  22         int r;
  23
  24         assert(bus);
  25         assert(reply);
  26         assert(userdata);
  27
  28         s = *(Set **) userdata;
  29
  30         r = sd_bus_message_open_container(reply, 'a', "s");
  31         if (r < 0)
  32                 return r;
  33
  34         SET_FOREACH(p, s, i) {
  35                 r = sd_bus_message_append(reply, "s", ether_addr_to_string(p, buf));
  36                 if (r < 0)
  37                         return r;
  38         }
  39
  40         return sd_bus_message_close_container(reply);
  41 }
  42
  43 const sd_bus_vtable network_vtable[] = {
  44         SD_BUS_VTABLE_START(0),
  45
  46         SD_BUS_PROPERTY("Description", "s", NULL, offsetof(Network, description), SD_BUS_VTABLE_PROPERTY_CONST),
  47         SD_BUS_PROPERTY("SourcePath", "s", NULL, offsetof(Network, filename), SD_BUS_VTABLE_PROPERTY_CONST),
  48         SD_BUS_PROPERTY("MatchMAC", "as", property_get_ether_addrs, offsetof(Network, match_mac), SD_BUS_VTABLE_PROPERTY_CONST),
  49         SD_BUS_PROPERTY("MatchPath", "as", NULL, offsetof(Network, match_path), SD_BUS_VTABLE_PROPERTY_CONST),
  50         SD_BUS_PROPERTY("MatchDriver", "as", NULL, offsetof(Network, match_driver), SD_BUS_VTABLE_PROPERTY_CONST),
  51         SD_BUS_PROPERTY("MatchType", "as", NULL, offsetof(Network, match_type), SD_BUS_VTABLE_PROPERTY_CONST),
  52         SD_BUS_PROPERTY("MatchName", "as", NULL, offsetof(Network, match_name), SD_BUS_VTABLE_PROPERTY_CONST),
  53
  54         SD_BUS_VTABLE_END
  55 };
  56
  57 static char *network_bus_path(Network *network) {
  58         _cleanup_free_ char *name = NULL;
  59         char *networkname, *d, *path;
  60         int r;
  61
  62         assert(network);
  63         assert(network->filename);
  64
  65         name = strdup(network->filename);
  66         if (!name)
  67                 return NULL;
  68
  69         networkname = basename(name);
  70
  71         d = strrchr(networkname, '.');
  72         if (!d)
  73                 return NULL;
  74
  75         assert(streq(d, ".network"));
  76
  77         *d = '\0';
  78
  79         r = sd_bus_path_encode("/org/freedesktop/network1/network", networkname, &path);
  80         if (r < 0)
  81                 return NULL;
  82
  83         return path;
  84 }
  85
  86 int network_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
  87         _cleanup_strv_free_ char **l = NULL;
  88         Manager *m = userdata;
  89         Network *network;
  90         int r;
  91
  92         assert(bus);
  93         assert(path);
  94         assert(m);
  95         assert(nodes);
  96
  97         LIST_FOREACH(networks, network, m->networks) {
  98                 char *p;
  99
 100                 p = network_bus_path(network);
 101                 if (!p)
 102                         return -ENOMEM;
 103
 104                 r = strv_consume(&l, p);
 105                 if (r < 0)
 106                         return r;
 107         }
 108
 109         *nodes = TAKE_PTR(l);
 110
 111         return 1;
 112 }
 113
 114 int network_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
 115         Manager *m = userdata;
 116         Network *network;
 117         _cleanup_free_ char *name = NULL;
 118         int r;
 119
 120         assert(bus);
 121         assert(path);
 122         assert(interface);
 123         assert(m);
 124         assert(found);
 125
 126         r = sd_bus_path_decode(path, "/org/freedesktop/network1/network", &name);
 127         if (r < 0)
 128                 return 0;
 129
 130         r = network_get_by_name(m, name, &network);
 131         if (r < 0)
 132                 return 0;
 133
 134         *found = network;
 135
 136         return 1;
 137 }