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af6f0d42 TG |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2013 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 | ||
b5efdb8a | 22 | #include "alloc-util.h" |
af6f0d42 | 23 | #include "link-config.h" |
af6f0d42 | 24 | #include "log.h" |
b5efdb8a | 25 | #include "udev.h" |
af6f0d42 | 26 | |
9588bc32 | 27 | static link_config_ctx *ctx = NULL; |
af6f0d42 | 28 | |
0b99c9f8 | 29 | static int builtin_net_setup_link(struct udev_device *dev, int argc, char **argv, bool test) { |
847a8a5f | 30 | _cleanup_free_ char *driver = NULL; |
c487c9ce | 31 | const char *name = NULL; |
af6f0d42 TG |
32 | link_config *link; |
33 | int r; | |
34 | ||
35 | if (argc > 1) { | |
36 | log_error("This program takes no arguments."); | |
37 | return EXIT_FAILURE; | |
38 | } | |
39 | ||
847a8a5f TG |
40 | r = link_get_driver(ctx, dev, &driver); |
41 | if (r >= 0) | |
42 | udev_builtin_add_property(dev, test, "ID_NET_DRIVER", driver); | |
43 | ||
af6f0d42 TG |
44 | r = link_config_get(ctx, dev, &link); |
45 | if (r < 0) { | |
46 | if (r == -ENOENT) { | |
01d4590b | 47 | log_debug("No matching link configuration found."); |
af6f0d42 TG |
48 | return EXIT_SUCCESS; |
49 | } else { | |
da927ba9 | 50 | log_error_errno(r, "Could not get link config: %m"); |
af6f0d42 TG |
51 | return EXIT_FAILURE; |
52 | } | |
53 | } | |
54 | ||
3e137a1b | 55 | r = link_config_apply(ctx, link, dev, &name); |
af6f0d42 | 56 | if (r < 0) { |
da927ba9 | 57 | log_error_errno(r, "Could not apply link config to %s: %m", udev_device_get_sysname(dev)); |
af6f0d42 TG |
58 | return EXIT_FAILURE; |
59 | } | |
60 | ||
ad6e5b34 TG |
61 | udev_builtin_add_property(dev, test, "ID_NET_LINK_FILE", link->filename); |
62 | ||
3e137a1b TG |
63 | if (name) |
64 | udev_builtin_add_property(dev, test, "ID_NET_NAME", name); | |
65 | ||
af6f0d42 TG |
66 | return EXIT_SUCCESS; |
67 | } | |
68 | ||
0b99c9f8 | 69 | static int builtin_net_setup_link_init(struct udev *udev) { |
af6f0d42 TG |
70 | int r; |
71 | ||
72 | if (ctx) | |
73 | return 0; | |
74 | ||
75 | r = link_config_ctx_new(&ctx); | |
76 | if (r < 0) | |
77 | return r; | |
78 | ||
79 | r = link_config_load(ctx); | |
80 | if (r < 0) | |
81 | return r; | |
82 | ||
01d4590b | 83 | log_debug("Created link configuration context."); |
af6f0d42 TG |
84 | return 0; |
85 | } | |
86 | ||
0b99c9f8 | 87 | static void builtin_net_setup_link_exit(struct udev *udev) { |
af6f0d42 | 88 | link_config_ctx_free(ctx); |
e0221a35 | 89 | ctx = NULL; |
01d4590b | 90 | log_debug("Unloaded link configuration context."); |
af6f0d42 TG |
91 | } |
92 | ||
0b99c9f8 | 93 | static bool builtin_net_setup_link_validate(struct udev *udev) { |
01d4590b | 94 | log_debug("Check if link configuration needs reloading."); |
af6f0d42 TG |
95 | if (!ctx) |
96 | return false; | |
97 | ||
98 | return link_config_should_reload(ctx); | |
99 | } | |
100 | ||
0b99c9f8 TG |
101 | const struct udev_builtin udev_builtin_net_setup_link = { |
102 | .name = "net_setup_link", | |
103 | .cmd = builtin_net_setup_link, | |
104 | .init = builtin_net_setup_link_init, | |
105 | .exit = builtin_net_setup_link_exit, | |
106 | .validate = builtin_net_setup_link_validate, | |
5ac0162c | 107 | .help = "Configure network link", |
af6f0d42 TG |
108 | .run_once = false, |
109 | }; |