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b286cd83 MT |
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-device.h> | |
22 | ||
40e2c8ca | 23 | #include "daemon.h" |
b286cd83 | 24 | #include "devmon.h" |
40e2c8ca MT |
25 | #include "logging.h" |
26 | ||
27 | static int nw_daemon_handle_uevent_net(nw_daemon* daemon, | |
28 | sd_device* device, sd_device_action_t action) { | |
29 | nw_link* link = NULL; | |
30 | int ifindex; | |
31 | int r; | |
32 | ||
33 | // Fetch ifindex | |
34 | r = sd_device_get_ifindex(device, &ifindex); | |
35 | if (r < 0) { | |
36 | ERROR("Could not get ifindex from uevent: %s\n", strerror(-r)); | |
37 | goto ERROR; | |
38 | } | |
39 | ||
40 | // Fetch the link | |
41 | link = nw_daemon_get_link_by_ifindex(daemon, ifindex); | |
42 | if (!link) { | |
43 | DEBUG("Could not fetch link %d, ignoring\n", ifindex); | |
44 | r = 0; | |
45 | goto ERROR; | |
46 | } | |
47 | ||
48 | // Let the link handle its uevent | |
49 | r = nw_link_handle_uevent(link, device, action); | |
50 | ||
51 | ERROR: | |
52 | if (link) | |
53 | nw_link_unref(link); | |
54 | ||
55 | return r; | |
56 | } | |
b286cd83 MT |
57 | |
58 | int nw_devmon_handle_uevent(sd_device_monitor* monitor, sd_device* device, void* data) { | |
40e2c8ca MT |
59 | sd_device_action_t action; |
60 | const char* subsystem = NULL; | |
61 | int r; | |
62 | ||
63 | // Fetch daemon | |
64 | nw_daemon* daemon = (nw_daemon*)data; | |
65 | ||
66 | // Fetch action | |
67 | r = sd_device_get_action(device, &action); | |
68 | if (r < 0) { | |
69 | WARNING("Could not get uevent action, ignoring: %s\n", strerror(-r)); | |
70 | return r; | |
71 | } | |
72 | ||
73 | // Fetch subsystem | |
74 | r = sd_device_get_subsystem(device, &subsystem); | |
75 | if (r < 0) { | |
76 | ERROR("Could not get uevent subsystem, ignoring: %s\n", strerror(-r)); | |
77 | return r; | |
78 | } | |
79 | ||
80 | // Handle any links | |
81 | if (strcmp(subsystem, "net") == 0) { | |
82 | r = nw_daemon_handle_uevent_net(daemon, device, action); | |
83 | ||
84 | } else { | |
85 | DEBUG("Received an uevent for an unhandled subsystem '%s', ignoring\n", subsystem); | |
86 | return 0; | |
87 | } | |
88 | ||
89 | // Log if something went wrong | |
90 | if (r < 0) | |
91 | ERROR("Failed processing uevent: %s\n", strerror(-r)); | |
92 | ||
b286cd83 MT |
93 | return 0; |
94 | } |