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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" |
c3d6fb26 | 15 | #include "main-func.h" |
232ac0d6 | 16 | #include "module-util.h" |
294bf0c3 | 17 | #include "pretty-print.h" |
4e731273 | 18 | #include "proc-cmdline.h" |
07630cea | 19 | #include "string-util.h" |
b2423f1f | 20 | #include "strv.h" |
3f6fd1ba | 21 | #include "util.h" |
03658d4f LP |
22 | |
23 | static char **arg_proc_cmdline_modules = NULL; | |
75eb6154 | 24 | static const char conf_file_dirs[] = CONF_PATHS_NULSTR("modules-load.d"); |
fabe5c0e | 25 | |
c3d6fb26 YW |
26 | STATIC_DESTRUCTOR_REGISTER(arg_proc_cmdline_modules, strv_freep); |
27 | ||
83684a35 | 28 | static void systemd_kmod_log(void *data, int priority, const char *file, int line, |
f168c273 | 29 | const char *fn, const char *format, va_list args) { |
bcfce235 LP |
30 | |
31 | DISABLE_WARNING_FORMAT_NONLITERAL; | |
79008bdd | 32 | log_internalv(priority, 0, file, line, fn, format, args); |
bcfce235 | 33 | REENABLE_WARNING; |
83684a35 TG |
34 | } |
35 | ||
03658d4f | 36 | static int add_modules(const char *p) { |
fabe5c0e | 37 | _cleanup_strv_free_ char **k = NULL; |
03658d4f LP |
38 | |
39 | k = strv_split(p, ","); | |
0d0f0c50 SL |
40 | if (!k) |
41 | return log_oom(); | |
03658d4f | 42 | |
e287086b | 43 | if (strv_extend_strv(&arg_proc_cmdline_modules, k, true) < 0) |
0d0f0c50 | 44 | return log_oom(); |
03658d4f | 45 | |
03658d4f LP |
46 | return 0; |
47 | } | |
48 | ||
96287a49 | 49 | static int parse_proc_cmdline_item(const char *key, const char *value, void *data) { |
74df0fca | 50 | int r; |
03658d4f | 51 | |
1d84ad94 LP |
52 | if (proc_cmdline_key_streq(key, "modules_load")) { |
53 | ||
54 | if (proc_cmdline_value_missing(key, value)) | |
55 | return 0; | |
56 | ||
059cb385 | 57 | r = add_modules(value); |
141a79f4 ZJS |
58 | if (r < 0) |
59 | return r; | |
03658d4f LP |
60 | } |
61 | ||
c007bb1b | 62 | return 0; |
03658d4f LP |
63 | } |
64 | ||
fabe5c0e LP |
65 | static int apply_file(struct kmod_ctx *ctx, const char *path, bool ignore_enoent) { |
66 | _cleanup_fclose_ FILE *f = NULL; | |
67 | int r; | |
68 | ||
69 | assert(ctx); | |
70 | assert(path); | |
71 | ||
4cf7ea55 | 72 | r = search_and_fopen_nulstr(path, "re", NULL, conf_file_dirs, &f); |
fabe5c0e LP |
73 | if (r < 0) { |
74 | if (ignore_enoent && r == -ENOENT) | |
75 | return 0; | |
76 | ||
a889e206 | 77 | return log_error_errno(r, "Failed to open %s: %m", path); |
fabe5c0e LP |
78 | } |
79 | ||
9f6445e3 | 80 | log_debug("apply: %s", path); |
fabe5c0e | 81 | for (;;) { |
a889e206 LP |
82 | _cleanup_free_ char *line = NULL; |
83 | char *l; | |
fabe5c0e LP |
84 | int k; |
85 | ||
db8794c3 YW |
86 | k = read_line(f, LONG_LINE_MAX, &line); |
87 | if (k < 0) | |
88 | return log_error_errno(k, "Failed to read file '%s': %m", path); | |
89 | if (k == 0) | |
a889e206 | 90 | break; |
fabe5c0e LP |
91 | |
92 | l = strstrip(line); | |
a889e206 | 93 | if (isempty(l)) |
fabe5c0e | 94 | continue; |
a889e206 | 95 | if (strchr(COMMENTS, *l)) |
fabe5c0e LP |
96 | continue; |
97 | ||
c3ad9786 | 98 | k = module_load_and_warn(ctx, l, true); |
db8794c3 | 99 | if (k < 0 && r >= 0) |
fabe5c0e LP |
100 | r = k; |
101 | } | |
102 | ||
103 | return r; | |
104 | } | |
105 | ||
37ec0fdd LP |
106 | static int help(void) { |
107 | _cleanup_free_ char *link = NULL; | |
108 | int r; | |
109 | ||
110 | r = terminal_urlify_man("systemd-modules-load.service", "8", &link); | |
111 | if (r < 0) | |
112 | return log_oom(); | |
113 | ||
fabe5c0e LP |
114 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
115 | "Loads statically configured kernel modules.\n\n" | |
eb9da376 | 116 | " -h --help Show this help\n" |
37ec0fdd LP |
117 | " --version Show package version\n" |
118 | "\nSee the %s for details.\n" | |
119 | , program_invocation_short_name | |
120 | , link | |
121 | ); | |
122 | ||
123 | return 0; | |
fabe5c0e LP |
124 | } |
125 | ||
126 | static int parse_argv(int argc, char *argv[]) { | |
127 | ||
eb9da376 LP |
128 | enum { |
129 | ARG_VERSION = 0x100, | |
130 | }; | |
131 | ||
fabe5c0e LP |
132 | static const struct option options[] = { |
133 | { "help", no_argument, NULL, 'h' }, | |
eb9da376 LP |
134 | { "version", no_argument, NULL, ARG_VERSION }, |
135 | {} | |
fabe5c0e LP |
136 | }; |
137 | ||
138 | int c; | |
139 | ||
140 | assert(argc >= 0); | |
141 | assert(argv); | |
142 | ||
601185b4 | 143 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
fabe5c0e LP |
144 | |
145 | switch (c) { | |
146 | ||
147 | case 'h': | |
37ec0fdd | 148 | return help(); |
eb9da376 LP |
149 | |
150 | case ARG_VERSION: | |
3f6fd1ba | 151 | return version(); |
fabe5c0e LP |
152 | |
153 | case '?': | |
154 | return -EINVAL; | |
155 | ||
156 | default: | |
eb9da376 | 157 | assert_not_reached("Unhandled option"); |
fabe5c0e | 158 | } |
fabe5c0e LP |
159 | |
160 | return 1; | |
161 | } | |
162 | ||
c3d6fb26 | 163 | static int run(int argc, char *argv[]) { |
232ac0d6 | 164 | _cleanup_(kmod_unrefp) struct kmod_ctx *ctx = NULL; |
c3d6fb26 | 165 | int r, k; |
b2423f1f | 166 | |
fabe5c0e LP |
167 | r = parse_argv(argc, argv); |
168 | if (r <= 0) | |
c3d6fb26 | 169 | return r; |
b2423f1f | 170 | |
6bf3c61c | 171 | log_setup_service(); |
b2423f1f | 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."); |
c3d6fb26 | 182 | return -ENOMEM; |
b2423f1f LP |
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; | |
c3d6fb26 | 214 | return r; |
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 | ||
c3d6fb26 | 224 | return r; |
b2423f1f | 225 | } |
c3d6fb26 YW |
226 | |
227 | DEFINE_MAIN_FUNCTION(run); |