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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <sys/stat.h>
#include <limits.h>
#include <dirent.h>
#include <libkmod.h>
#include "log.h"
#include "util.h"
#include "strv.h"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wformat-nonliteral"
static void systemd_kmod_log(void *data, int priority, const char *file, int line,
const char *fn, const char *format, va_list args)
{
log_meta(priority, file, line, fn, format, args);
}
#pragma GCC diagnostic pop
int main(int argc, char *argv[]) {
int r = EXIT_FAILURE;
char **files, **fn;
struct kmod_ctx *ctx;
const int probe_flags = KMOD_PROBE_APPLY_BLACKLIST|KMOD_PROBE_IGNORE_LOADED;
if (argc > 1) {
log_error("This program takes no argument.");
return EXIT_FAILURE;
}
log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
log_open();
umask(0022);
if (!(ctx = kmod_new(NULL, NULL))) {
log_error("Failed to allocate memory for kmod.");
goto finish;
}
kmod_load_resources(ctx);
kmod_set_log_fn(ctx, systemd_kmod_log, NULL);
if (conf_files_list(&files, ".conf",
"/etc/modules-load.d",
"/run/modules-load.d",
"/usr/local/lib/modules-load.d",
"/usr/lib/modules-load.d",
"/lib/modules-load.d",
NULL) < 0) {
log_error("Failed to enumerate modules-load.d files: %s", strerror(-r));
goto finish;
}
r = EXIT_SUCCESS;
STRV_FOREACH(fn, files) {
FILE *f;
f = fopen(*fn, "re");
if (!f) {
if (errno == ENOENT)
continue;
log_error("Failed to open %s: %m", *fn);
r = EXIT_FAILURE;
continue;
}
log_debug("apply: %s\n", *fn);
for (;;) {
char line[LINE_MAX], *l;
struct kmod_list *itr, *modlist = NULL;
int err;
if (!(fgets(line, sizeof(line), f)))
break;
l = strstrip(line);
if (*l == '#' || *l == 0)
continue;
err = kmod_module_new_from_lookup(ctx, l, &modlist);
if (err < 0) {
log_error("Failed to lookup alias '%s'", l);
r = EXIT_FAILURE;
continue;
}
kmod_list_foreach(itr, modlist) {
struct kmod_module *mod = kmod_module_get_module(itr);
err = kmod_module_probe_insert_module(mod, probe_flags,
NULL, NULL, NULL, NULL);
if (err == 0)
log_info("Inserted module '%s'", kmod_module_get_name(mod));
else if (err == KMOD_PROBE_APPLY_BLACKLIST)
log_info("Module '%s' is blacklisted", kmod_module_get_name(mod));
else {
log_error("Failed to insert '%s': %s", kmod_module_get_name(mod),
strerror(-err));
r = EXIT_FAILURE;
}
kmod_module_unref(mod);
}
kmod_module_unref_list(modlist);
}
if (ferror(f)) {
log_error("Failed to read from file: %m");
r = EXIT_FAILURE;
}
fclose(f);
}
finish:
strv_free(files);
kmod_unref(ctx);
return r;
}
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