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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
11c3a4ee LP |
2 | |
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
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 | |
11c3a4ee LP |
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
11c3a4ee | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
11c3a4ee LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <sys/wait.h> | |
23 | #include <unistd.h> | |
24 | #include <string.h> | |
25 | #include <errno.h> | |
728beb28 | 26 | #include <libkmod.h> |
11c3a4ee LP |
27 | |
28 | #include "macro.h" | |
29 | #include "execute.h" | |
30 | ||
31 | #include "kmod-setup.h" | |
32 | ||
33 | static const char * const kmod_table[] = { | |
34 | "autofs4", "/sys/class/misc/autofs", | |
17586c16 LP |
35 | "ipv6", "/sys/module/ipv6", |
36 | "unix", "/proc/net/unix" | |
11c3a4ee LP |
37 | }; |
38 | ||
cdb454f2 LP |
39 | #pragma GCC diagnostic push |
40 | #pragma GCC diagnostic ignored "-Wformat-nonliteral" | |
728beb28 TG |
41 | static void systemd_kmod_log(void *data, int priority, const char *file, int line, |
42 | const char *fn, const char *format, va_list args) | |
43 | { | |
44 | log_meta(priority, file, line, fn, format, args); | |
45 | } | |
cdb454f2 | 46 | #pragma GCC diagnostic pop |
728beb28 | 47 | |
11c3a4ee | 48 | int kmod_setup(void) { |
728beb28 TG |
49 | unsigned i; |
50 | struct kmod_ctx *ctx = NULL; | |
51 | struct kmod_module *mod; | |
52 | int err; | |
11c3a4ee LP |
53 | |
54 | for (i = 0; i < ELEMENTSOF(kmod_table); i += 2) { | |
55 | ||
56 | if (access(kmod_table[i+1], F_OK) >= 0) | |
57 | continue; | |
58 | ||
be11c12e | 59 | log_debug("Your kernel apparently lacks built-in %s support. Might be a good idea to compile it in. " |
728beb28 TG |
60 | "We'll now try to work around this by loading the module...", |
61 | kmod_table[i]); | |
11c3a4ee | 62 | |
728beb28 TG |
63 | if (!ctx) { |
64 | ctx = kmod_new(NULL, NULL); | |
65 | if (!ctx) { | |
66 | log_error("Failed to allocate memory for kmod"); | |
67 | return -ENOMEM; | |
68 | } | |
11c3a4ee | 69 | |
728beb28 | 70 | kmod_set_log_fn(ctx, systemd_kmod_log, NULL); |
11c3a4ee | 71 | |
728beb28 TG |
72 | kmod_load_resources(ctx); |
73 | } | |
11c3a4ee | 74 | |
728beb28 TG |
75 | err = kmod_module_new_from_name(ctx, kmod_table[i], &mod); |
76 | if (err < 0) { | |
77 | log_error("Failed to load module '%s'", kmod_table[i]); | |
78 | continue; | |
79 | } | |
11c3a4ee | 80 | |
728beb28 TG |
81 | err = kmod_module_probe_insert_module(mod, KMOD_PROBE_APPLY_BLACKLIST, NULL, NULL, NULL, NULL); |
82 | if (err == 0) | |
83 | log_info("Inserted module '%s'", kmod_module_get_name(mod)); | |
84 | else if (err == KMOD_PROBE_APPLY_BLACKLIST) | |
85 | log_info("Module '%s' is blacklisted", kmod_module_get_name(mod)); | |
86 | else | |
87 | log_error("Failed to insert '%s'", kmod_module_get_name(mod)); | |
11c3a4ee | 88 | |
728beb28 | 89 | kmod_module_unref(mod); |
11c3a4ee LP |
90 | } |
91 | ||
728beb28 | 92 | if (ctx) |
34a35ece | 93 | kmod_unref(ctx); |
728beb28 TG |
94 | |
95 | return 0; | |
11c3a4ee | 96 | } |