1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
8 #include "conf-files.h"
13 #include "main-func.h"
14 #include "module-util.h"
15 #include "pretty-print.h"
16 #include "proc-cmdline.h"
17 #include "string-util.h"
21 static char **arg_proc_cmdline_modules
= NULL
;
22 static const char conf_file_dirs
[] = CONF_PATHS_NULSTR("modules-load.d");
24 STATIC_DESTRUCTOR_REGISTER(arg_proc_cmdline_modules
, strv_freep
);
26 static void systemd_kmod_log(void *data
, int priority
, const char *file
, int line
,
27 const char *fn
, const char *format
, va_list args
) {
29 DISABLE_WARNING_FORMAT_NONLITERAL
;
30 log_internalv(priority
, 0, file
, line
, fn
, format
, args
);
34 static int add_modules(const char *p
) {
35 _cleanup_strv_free_
char **k
= NULL
;
37 k
= strv_split(p
, ",");
41 if (strv_extend_strv(&arg_proc_cmdline_modules
, k
, true) < 0)
47 static int parse_proc_cmdline_item(const char *key
, const char *value
, void *data
) {
50 if (proc_cmdline_key_streq(key
, "modules_load")) {
52 if (proc_cmdline_value_missing(key
, value
))
55 r
= add_modules(value
);
63 static int apply_file(struct kmod_ctx
*ctx
, const char *path
, bool ignore_enoent
) {
64 _cleanup_fclose_
FILE *f
= NULL
;
65 _cleanup_free_
char *pp
= NULL
;
71 r
= search_and_fopen_nulstr(path
, "re", NULL
, conf_file_dirs
, &f
, &pp
);
73 if (ignore_enoent
&& r
== -ENOENT
)
76 return log_error_errno(r
, "Failed to open %s: %m", path
);
79 log_debug("apply: %s", pp
);
81 _cleanup_free_
char *line
= NULL
;
85 k
= read_line(f
, LONG_LINE_MAX
, &line
);
87 return log_error_errno(k
, "Failed to read file '%s': %m", pp
);
94 if (strchr(COMMENTS
, *l
))
97 k
= module_load_and_warn(ctx
, l
, true);
107 static int help(void) {
108 _cleanup_free_
char *link
= NULL
;
111 r
= terminal_urlify_man("systemd-modules-load.service", "8", &link
);
115 printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n"
116 "Loads statically configured kernel modules.\n\n"
117 " -h --help Show this help\n"
118 " --version Show package version\n"
119 "\nSee the %s for details.\n",
120 program_invocation_short_name
,
126 static int parse_argv(int argc
, char *argv
[]) {
131 static const struct option options
[] = {
132 { "help", no_argument
, NULL
, 'h' },
133 { "version", no_argument
, NULL
, ARG_VERSION
},
142 while ((c
= getopt_long(argc
, argv
, "h", options
, NULL
)) >= 0)
155 assert_not_reached();
161 static int run(int argc
, char *argv
[]) {
162 _cleanup_(kmod_unrefp
) struct kmod_ctx
*ctx
= NULL
;
165 r
= parse_argv(argc
, argv
);
173 r
= proc_cmdline_parse(parse_proc_cmdline_item
, NULL
, PROC_CMDLINE_STRIP_RD_PREFIX
);
175 log_warning_errno(r
, "Failed to parse kernel command line, ignoring: %m");
177 ctx
= kmod_new(NULL
, NULL
);
179 log_error("Failed to allocate memory for kmod.");
183 kmod_load_resources(ctx
);
184 kmod_set_log_fn(ctx
, systemd_kmod_log
, NULL
);
189 for (int i
= optind
; i
< argc
; i
++) {
190 k
= apply_file(ctx
, argv
[i
], false);
196 _cleanup_strv_free_
char **files
= NULL
;
198 STRV_FOREACH(i
, arg_proc_cmdline_modules
) {
199 k
= module_load_and_warn(ctx
, *i
, true);
206 k
= conf_files_list_nulstr(&files
, ".conf", NULL
, 0, conf_file_dirs
);
208 log_error_errno(k
, "Failed to enumerate modules-load.d files: %m");
214 STRV_FOREACH(fn
, files
) {
215 k
= apply_file(ctx
, *fn
, true);
224 DEFINE_MAIN_FUNCTION(run
);