chiark / gitweb /
networkd: bus - switch to properly escaped object paths
[elogind.git] / 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         _cleanup_free_ char *ifindex = NULL;
42         char *p;
43         int r;
44
45         assert(link);
46         assert(link->ifindex > 0);
47
48         if (asprintf(&ifindex, "%d", link->ifindex) < 0)
49                 return NULL;
50
51         r = sd_bus_path_encode("/org/freedesktop/network1/link", ifindex, &p);
52         if (r < 0)
53                 return NULL;
54
55         return p;
56 }
57
58 int link_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
59         _cleanup_strv_free_ char **l = NULL;
60         Manager *m = userdata;
61         Link *link;
62         Iterator i;
63         int r;
64
65         assert(bus);
66         assert(path);
67         assert(m);
68         assert(nodes);
69
70         HASHMAP_FOREACH(link, m->links, i) {
71                 char *p;
72
73                 p = link_bus_path(link);
74                 if (!p)
75                         return -ENOMEM;
76
77                 r = strv_consume(&l, p);
78                 if (r < 0)
79                         return r;
80         }
81
82         *nodes = l;
83         l = NULL;
84
85         return 1;
86 }
87
88 int link_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
89         _cleanup_free_ char *identifier = NULL;
90         Manager *m = userdata;
91         Link *link;
92         int ifindex, r;
93
94         assert(bus);
95         assert(path);
96         assert(interface);
97         assert(m);
98         assert(found);
99
100         r = sd_bus_path_decode(path, "/org/freedesktop/network1/link", &identifier);
101         if (r < 0)
102                 return 0;
103
104         if (sscanf(identifier, "%d", &ifindex) != 1)
105                 return 0;
106
107         r = link_get(m, ifindex, &link);
108         if (r < 0)
109                 return 0;
110
111         *found = link;
112
113         return 1;
114 }
115
116 int link_send_changed(Link *link, const char *property, ...) {
117         _cleanup_free_ char *p = NULL;
118         char **l;
119
120         assert(link);
121         assert(link->manager);
122
123         if (!link->manager->bus)
124                 return 0; /* replace with assert when we have kdbus */
125
126         l = strv_from_stdarg_alloca(property);
127
128         p = link_bus_path(link);
129         if (!p)
130                 return -ENOMEM;
131
132         return sd_bus_emit_properties_changed_strv(
133                         link->manager->bus,
134                         p,
135                         "org.freedesktop.network1.Link",
136                         l);
137 }