1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
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
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
34 /* This reads all module names listed in /etc/modules-load.d/?*.conf and
35 * loads them into the kernel. This follows roughly Debian's way to
36 * handle modules, but uses a directory of fragments instead of a
37 * single /etc/modules file. */
39 static int scandir_filter(const struct dirent *d) {
42 if (ignore_file(d->d_name))
45 if (d->d_type != DT_REG &&
46 d->d_type != DT_LNK &&
47 d->d_type != DT_UNKNOWN)
50 return endswith(d->d_name, ".conf");
53 int main(int argc, char *argv[]) {
54 struct dirent **de = NULL;
55 int r = EXIT_FAILURE, n, i;
56 char **arguments = NULL;
57 unsigned n_arguments = 0, n_allocated = 0;
60 log_error("This program takes no argument.");
64 log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
65 log_parse_environment();
68 if (!(arguments = strv_new("/sbin/modprobe", "-sab", "--", NULL))) {
69 log_error("Failed to allocate string array");
73 n_arguments = n_allocated = 3;
75 if ((n = scandir("/etc/modules-load.d/", &de, scandir_filter, alphasort)) < 0) {
80 log_error("Failed to enumerate /etc/modules-load.d/ files: %m");
87 for (i = 0; i < n; i++) {
92 k = asprintf(&fn, "/etc/modules-load.d/%s", de[i]->d_name);
96 log_error("Failed to allocate file name.");
104 if (errno == ENOENT) {
109 log_error("Failed to open %s: %m", fn);
118 char line[LINE_MAX], *l, *t;
120 if (!(fgets(line, sizeof(line), f)))
124 if (*l == '#' || *l == 0)
127 if (!(t = strdup(l))) {
128 log_error("Failed to allocate module name.");
132 if (n_arguments >= n_allocated) {
136 m = MAX(16U, n_arguments*2);
138 if (!(a = realloc(arguments, sizeof(char*) * (m+1)))) {
139 log_error("Failed to increase module array size.");
149 arguments[n_arguments++] = t;
154 log_error("Failed to read from file: %m");
164 if (n_arguments > 3) {
165 arguments[n_arguments] = NULL;
166 execv("/sbin/modprobe", arguments);
168 log_error("Failed to execute /sbin/modprobe: %m");
172 strv_free(arguments);