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03761881 CMOF |
1 | /* |
2 | * kmod-insert - insert a module into the kernel. | |
3 | * | |
4 | * Copyright (C) 2015 Intel Corporation. All rights reserved. | |
5 | * Copyright (C) 2011-2013 ProFUSION embedded systems | |
6 | * | |
7 | * This program is free software: you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation, either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
21 | #include <errno.h> | |
22 | #include <getopt.h> | |
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
25 | ||
26 | #include <libkmod/libkmod.h> | |
27 | ||
28 | #include "kmod.h" | |
29 | ||
30 | static const char cmdopts_s[] = "h"; | |
31 | static const struct option cmdopts[] = { | |
32 | {"help", no_argument, 0, 'h'}, | |
33 | { } | |
34 | }; | |
35 | ||
36 | static void help(void) | |
37 | { | |
38 | printf("Usage:\n" | |
39 | "\t%s insert [options] module\n" | |
40 | "Options:\n" | |
41 | "\t-h, --help show this help\n", | |
42 | program_invocation_short_name); | |
43 | } | |
44 | ||
45 | static const char *mod_strerror(int err) | |
46 | { | |
47 | switch (err) { | |
48 | case KMOD_PROBE_APPLY_BLACKLIST: | |
49 | return "Module is blacklisted"; | |
50 | case -EEXIST: | |
51 | return "Module already in kernel"; | |
52 | case -ENOENT: | |
53 | return "Unknown symbol in module or unknown parameter (see dmesg)"; | |
54 | default: | |
55 | return strerror(-err); | |
56 | } | |
57 | } | |
58 | ||
59 | static int do_insert(int argc, char *argv[]) | |
60 | { | |
61 | struct kmod_ctx *ctx; | |
62 | struct kmod_list *list = NULL, *l; | |
63 | const char *name; | |
64 | int err, r = EXIT_SUCCESS; | |
65 | ||
66 | for (;;) { | |
67 | int c, idx = 0; | |
68 | c = getopt_long(argc, argv, cmdopts_s, cmdopts, &idx); | |
69 | if (c == -1) | |
70 | break; | |
71 | switch (c) { | |
72 | case 'h': | |
73 | help(); | |
74 | return EXIT_SUCCESS; | |
75 | default: | |
76 | ERR("Unexpected getopt_long() value '%c'.\n", c); | |
77 | return EXIT_FAILURE; | |
78 | } | |
79 | } | |
80 | ||
81 | if (optind >= argc) { | |
82 | ERR("Missing module name\n"); | |
83 | return EXIT_FAILURE; | |
84 | } | |
85 | ||
86 | ctx = kmod_new(NULL, NULL); | |
87 | if (!ctx) { | |
88 | ERR("kmod_new() failed!\n"); | |
89 | return EXIT_FAILURE; | |
90 | } | |
91 | ||
92 | name = argv[optind]; | |
93 | err = kmod_module_new_from_lookup(ctx, name, &list); | |
94 | if (err < 0) { | |
95 | ERR("Could not lookup module matching '%s': %s\n", name, strerror(-err)); | |
96 | r = EXIT_FAILURE; | |
97 | goto end; | |
98 | } | |
99 | ||
100 | if (list == NULL) { | |
101 | ERR("No module matches '%s'\n", name); | |
102 | r = EXIT_FAILURE; | |
103 | goto end; | |
104 | } | |
105 | ||
106 | kmod_list_foreach(l, list) { | |
107 | struct kmod_module *mod = kmod_module_get_module(l); | |
108 | ||
109 | err = kmod_module_probe_insert_module(mod, KMOD_PROBE_APPLY_BLACKLIST, NULL, NULL, NULL, NULL); | |
110 | if (err != 0) { | |
111 | r = EXIT_FAILURE; | |
112 | ERR("Could not insert '%s': %s\n", kmod_module_get_name(mod), mod_strerror(err)); | |
113 | } | |
114 | ||
115 | kmod_module_unref(mod); | |
116 | } | |
117 | ||
118 | kmod_module_unref_list(list); | |
119 | end: | |
120 | kmod_unref(ctx); | |
121 | return r; | |
122 | } | |
123 | ||
124 | const struct kmod_cmd kmod_cmd_insert = { | |
125 | .name = "insert", | |
126 | .cmd = do_insert, | |
127 | .help = "insert a module into the kernel", | |
128 | }; |