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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
b2423f1f | 2 | |
b2423f1f | 3 | #include <errno.h> |
3f6fd1ba | 4 | #include <getopt.h> |
07630cea | 5 | #include <libkmod.h> |
3f6fd1ba | 6 | #include <limits.h> |
b2423f1f LP |
7 | #include <string.h> |
8 | #include <sys/stat.h> | |
b2423f1f | 9 | |
3f6fd1ba | 10 | #include "conf-files.h" |
a0f29c76 | 11 | #include "def.h" |
3ffd4af2 | 12 | #include "fd-util.h" |
0d39fa9c | 13 | #include "fileio.h" |
b2423f1f | 14 | #include "log.h" |
232ac0d6 | 15 | #include "module-util.h" |
4e731273 | 16 | #include "proc-cmdline.h" |
07630cea | 17 | #include "string-util.h" |
b2423f1f | 18 | #include "strv.h" |
37ec0fdd | 19 | #include "terminal-util.h" |
3f6fd1ba | 20 | #include "util.h" |
03658d4f LP |
21 | |
22 | static char **arg_proc_cmdline_modules = NULL; | |
b2423f1f | 23 | |
75eb6154 | 24 | static const char conf_file_dirs[] = CONF_PATHS_NULSTR("modules-load.d"); |
fabe5c0e | 25 | |
83684a35 | 26 | static void systemd_kmod_log(void *data, int priority, const char *file, int line, |
f168c273 | 27 | const char *fn, const char *format, va_list args) { |
bcfce235 LP |
28 | |
29 | DISABLE_WARNING_FORMAT_NONLITERAL; | |
79008bdd | 30 | log_internalv(priority, 0, file, line, fn, format, args); |
bcfce235 | 31 | REENABLE_WARNING; |
83684a35 TG |
32 | } |
33 | ||
03658d4f | 34 | static int add_modules(const char *p) { |
fabe5c0e | 35 | _cleanup_strv_free_ char **k = NULL; |
03658d4f LP |
36 | |
37 | k = strv_split(p, ","); | |
0d0f0c50 SL |
38 | if (!k) |
39 | return log_oom(); | |
03658d4f | 40 | |
e287086b | 41 | if (strv_extend_strv(&arg_proc_cmdline_modules, k, true) < 0) |
0d0f0c50 | 42 | return log_oom(); |
03658d4f | 43 | |
03658d4f LP |
44 | return 0; |
45 | } | |
46 | ||
96287a49 | 47 | static int parse_proc_cmdline_item(const char *key, const char *value, void *data) { |
74df0fca | 48 | int r; |
03658d4f | 49 | |
1d84ad94 LP |
50 | if (proc_cmdline_key_streq(key, "modules_load")) { |
51 | ||
52 | if (proc_cmdline_value_missing(key, value)) | |
53 | return 0; | |
54 | ||
059cb385 | 55 | r = add_modules(value); |
141a79f4 ZJS |
56 | if (r < 0) |
57 | return r; | |
03658d4f LP |
58 | } |
59 | ||
c007bb1b | 60 | return 0; |
03658d4f LP |
61 | } |
62 | ||
fabe5c0e LP |
63 | static int apply_file(struct kmod_ctx *ctx, const char *path, bool ignore_enoent) { |
64 | _cleanup_fclose_ FILE *f = NULL; | |
65 | int r; | |
66 | ||
67 | assert(ctx); | |
68 | assert(path); | |
69 | ||
4cf7ea55 | 70 | r = search_and_fopen_nulstr(path, "re", NULL, conf_file_dirs, &f); |
fabe5c0e LP |
71 | if (r < 0) { |
72 | if (ignore_enoent && r == -ENOENT) | |
73 | return 0; | |
74 | ||
8d3d7072 | 75 | return log_error_errno(r, "Failed to open %s, ignoring: %m", path); |
fabe5c0e LP |
76 | } |
77 | ||
9f6445e3 | 78 | log_debug("apply: %s", path); |
fabe5c0e LP |
79 | for (;;) { |
80 | char line[LINE_MAX], *l; | |
81 | int k; | |
82 | ||
83 | if (!fgets(line, sizeof(line), f)) { | |
84 | if (feof(f)) | |
85 | break; | |
86 | ||
e1427b13 | 87 | return log_error_errno(errno, "Failed to read file '%s', ignoring: %m", path); |
fabe5c0e LP |
88 | } |
89 | ||
90 | l = strstrip(line); | |
91 | if (!*l) | |
92 | continue; | |
d3b6d0c2 | 93 | if (strchr(COMMENTS "\n", *l)) |
fabe5c0e LP |
94 | continue; |
95 | ||
c3ad9786 | 96 | k = module_load_and_warn(ctx, l, true); |
fabe5c0e LP |
97 | if (k < 0 && r == 0) |
98 | r = k; | |
99 | } | |
100 | ||
101 | return r; | |
102 | } | |
103 | ||
37ec0fdd LP |
104 | static int help(void) { |
105 | _cleanup_free_ char *link = NULL; | |
106 | int r; | |
107 | ||
108 | r = terminal_urlify_man("systemd-modules-load.service", "8", &link); | |
109 | if (r < 0) | |
110 | return log_oom(); | |
111 | ||
fabe5c0e LP |
112 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
113 | "Loads statically configured kernel modules.\n\n" | |
eb9da376 | 114 | " -h --help Show this help\n" |
37ec0fdd LP |
115 | " --version Show package version\n" |
116 | "\nSee the %s for details.\n" | |
117 | , program_invocation_short_name | |
118 | , link | |
119 | ); | |
120 | ||
121 | return 0; | |
fabe5c0e LP |
122 | } |
123 | ||
124 | static int parse_argv(int argc, char *argv[]) { | |
125 | ||
eb9da376 LP |
126 | enum { |
127 | ARG_VERSION = 0x100, | |
128 | }; | |
129 | ||
fabe5c0e LP |
130 | static const struct option options[] = { |
131 | { "help", no_argument, NULL, 'h' }, | |
eb9da376 LP |
132 | { "version", no_argument, NULL, ARG_VERSION }, |
133 | {} | |
fabe5c0e LP |
134 | }; |
135 | ||
136 | int c; | |
137 | ||
138 | assert(argc >= 0); | |
139 | assert(argv); | |
140 | ||
601185b4 | 141 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
fabe5c0e LP |
142 | |
143 | switch (c) { | |
144 | ||
145 | case 'h': | |
37ec0fdd | 146 | return help(); |
eb9da376 LP |
147 | |
148 | case ARG_VERSION: | |
3f6fd1ba | 149 | return version(); |
fabe5c0e LP |
150 | |
151 | case '?': | |
152 | return -EINVAL; | |
153 | ||
154 | default: | |
eb9da376 | 155 | assert_not_reached("Unhandled option"); |
fabe5c0e | 156 | } |
fabe5c0e LP |
157 | |
158 | return 1; | |
159 | } | |
160 | ||
b2423f1f | 161 | int main(int argc, char *argv[]) { |
fabe5c0e | 162 | int r, k; |
232ac0d6 | 163 | _cleanup_(kmod_unrefp) struct kmod_ctx *ctx = NULL; |
b2423f1f | 164 | |
fabe5c0e LP |
165 | r = parse_argv(argc, argv); |
166 | if (r <= 0) | |
167 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
b2423f1f | 168 | |
4cfa2c99 | 169 | log_set_target(LOG_TARGET_AUTO); |
b2423f1f LP |
170 | log_parse_environment(); |
171 | log_open(); | |
172 | ||
4c12626c LP |
173 | umask(0022); |
174 | ||
1d84ad94 | 175 | r = proc_cmdline_parse(parse_proc_cmdline_item, NULL, PROC_CMDLINE_STRIP_RD_PREFIX); |
b5884878 | 176 | if (r < 0) |
da927ba9 | 177 | log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m"); |
03658d4f | 178 | |
4e2075ce LP |
179 | ctx = kmod_new(NULL, NULL); |
180 | if (!ctx) { | |
83684a35 | 181 | log_error("Failed to allocate memory for kmod."); |
b2423f1f LP |
182 | goto finish; |
183 | } | |
184 | ||
83684a35 | 185 | kmod_load_resources(ctx); |
83684a35 | 186 | kmod_set_log_fn(ctx, systemd_kmod_log, NULL); |
b2423f1f | 187 | |
fabe5c0e | 188 | r = 0; |
03658d4f | 189 | |
fabe5c0e LP |
190 | if (argc > optind) { |
191 | int i; | |
b2423f1f | 192 | |
fabe5c0e LP |
193 | for (i = optind; i < argc; i++) { |
194 | k = apply_file(ctx, argv[i], false); | |
195 | if (k < 0 && r == 0) | |
196 | r = k; | |
b2423f1f LP |
197 | } |
198 | ||
fabe5c0e | 199 | } else { |
4df32778 | 200 | _cleanup_strv_free_ char **files = NULL; |
fabe5c0e | 201 | char **fn, **i; |
b2423f1f | 202 | |
fabe5c0e | 203 | STRV_FOREACH(i, arg_proc_cmdline_modules) { |
c3ad9786 | 204 | k = module_load_and_warn(ctx, *i, true); |
b857193b LP |
205 | if (k < 0 && r == 0) |
206 | r = k; | |
b2423f1f LP |
207 | } |
208 | ||
b5084605 | 209 | k = conf_files_list_nulstr(&files, ".conf", NULL, 0, conf_file_dirs); |
4b462d1a | 210 | if (k < 0) { |
da927ba9 | 211 | log_error_errno(k, "Failed to enumerate modules-load.d files: %m"); |
4b462d1a LP |
212 | if (r == 0) |
213 | r = k; | |
fabe5c0e | 214 | goto finish; |
b2423f1f LP |
215 | } |
216 | ||
fabe5c0e LP |
217 | STRV_FOREACH(fn, files) { |
218 | k = apply_file(ctx, *fn, true); | |
219 | if (k < 0 && r == 0) | |
220 | r = k; | |
221 | } | |
b2423f1f LP |
222 | } |
223 | ||
b2423f1f | 224 | finish: |
03658d4f | 225 | strv_free(arg_proc_cmdline_modules); |
b2423f1f | 226 | |
fabe5c0e | 227 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
b2423f1f | 228 | } |