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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 | ||
22 | #include "link-config.h" | |
23 | #include "udev.h" | |
24 | #include "log.h" | |
25 | ||
9588bc32 | 26 | static link_config_ctx *ctx = NULL; |
af6f0d42 | 27 | |
0b99c9f8 | 28 | static int builtin_net_setup_link(struct udev_device *dev, int argc, char **argv, bool test) { |
847a8a5f | 29 | _cleanup_free_ char *driver = NULL; |
3e137a1b | 30 | const char *name; |
af6f0d42 TG |
31 | link_config *link; |
32 | int r; | |
33 | ||
34 | if (argc > 1) { | |
35 | log_error("This program takes no arguments."); | |
36 | return EXIT_FAILURE; | |
37 | } | |
38 | ||
847a8a5f TG |
39 | r = link_get_driver(ctx, dev, &driver); |
40 | if (r >= 0) | |
41 | udev_builtin_add_property(dev, test, "ID_NET_DRIVER", driver); | |
42 | ||
af6f0d42 TG |
43 | r = link_config_get(ctx, dev, &link); |
44 | if (r < 0) { | |
45 | if (r == -ENOENT) { | |
01d4590b | 46 | log_debug("No matching link configuration found."); |
af6f0d42 TG |
47 | return EXIT_SUCCESS; |
48 | } else { | |
0a1beeb6 | 49 | log_error_errno(-r, "Could not get link config: %m"); |
af6f0d42 TG |
50 | return EXIT_FAILURE; |
51 | } | |
52 | } | |
53 | ||
3e137a1b | 54 | r = link_config_apply(ctx, link, dev, &name); |
af6f0d42 | 55 | if (r < 0) { |
0a1beeb6 | 56 | log_error_errno(-r, "Could not apply link config to %s: %m", udev_device_get_sysname(dev)); |
af6f0d42 TG |
57 | return EXIT_FAILURE; |
58 | } | |
59 | ||
ad6e5b34 TG |
60 | udev_builtin_add_property(dev, test, "ID_NET_LINK_FILE", link->filename); |
61 | ||
3e137a1b TG |
62 | if (name) |
63 | udev_builtin_add_property(dev, test, "ID_NET_NAME", name); | |
64 | ||
af6f0d42 TG |
65 | return EXIT_SUCCESS; |
66 | } | |
67 | ||
0b99c9f8 | 68 | static int builtin_net_setup_link_init(struct udev *udev) { |
af6f0d42 TG |
69 | int r; |
70 | ||
71 | if (ctx) | |
72 | return 0; | |
73 | ||
74 | r = link_config_ctx_new(&ctx); | |
75 | if (r < 0) | |
76 | return r; | |
77 | ||
78 | r = link_config_load(ctx); | |
79 | if (r < 0) | |
80 | return r; | |
81 | ||
01d4590b | 82 | log_debug("Created link configuration context."); |
af6f0d42 TG |
83 | return 0; |
84 | } | |
85 | ||
0b99c9f8 | 86 | static void builtin_net_setup_link_exit(struct udev *udev) { |
af6f0d42 | 87 | link_config_ctx_free(ctx); |
e0221a35 | 88 | ctx = NULL; |
01d4590b | 89 | log_debug("Unloaded link configuration context."); |
af6f0d42 TG |
90 | } |
91 | ||
0b99c9f8 | 92 | static bool builtin_net_setup_link_validate(struct udev *udev) { |
01d4590b | 93 | log_debug("Check if link configuration needs reloading."); |
af6f0d42 TG |
94 | if (!ctx) |
95 | return false; | |
96 | ||
97 | return link_config_should_reload(ctx); | |
98 | } | |
99 | ||
0b99c9f8 TG |
100 | const struct udev_builtin udev_builtin_net_setup_link = { |
101 | .name = "net_setup_link", | |
102 | .cmd = builtin_net_setup_link, | |
103 | .init = builtin_net_setup_link_init, | |
104 | .exit = builtin_net_setup_link_exit, | |
105 | .validate = builtin_net_setup_link_validate, | |
af6f0d42 TG |
106 | .help = "configure network link", |
107 | .run_once = false, | |
108 | }; |