mirror of
https://github.com/AuxXxilium/kmod.git
synced 2024-12-25 21:05:23 +07:00
159 lines
3.5 KiB
C
159 lines
3.5 KiB
C
/*
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* kmod-insmod - insert modules into linux kernel using libkmod.
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*
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* Copyright (C) 2011-2013 ProFUSION embedded systems
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <getopt.h>
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#include <errno.h>
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#include <string.h>
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#include "libkmod.h"
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#include "kmod.h"
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static const char cmdopts_s[] = "psfVh";
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static const struct option cmdopts[] = {
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{"version", no_argument, 0, 'V'},
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{"help", no_argument, 0, 'h'},
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{NULL, 0, 0, 0}
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};
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static void help(void)
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{
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printf("Usage:\n"
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"\t%s [options] filename [args]\n"
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"Options:\n"
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"\t-V, --version show version\n"
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"\t-h, --help show this help\n",
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program_invocation_short_name);
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}
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static const char *mod_strerror(int err)
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{
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switch (err) {
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case ENOEXEC:
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return "Invalid module format";
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case ENOENT:
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return "Unknown symbol in module";
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case ESRCH:
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return "Module has wrong symbol version";
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case EINVAL:
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return "Invalid parameters";
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default:
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return strerror(err);
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}
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}
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static int do_insmod(int argc, char *argv[])
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{
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struct kmod_ctx *ctx;
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struct kmod_module *mod;
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const char *filename;
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char *opts = NULL;
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size_t optslen = 0;
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int i, err;
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const char *null_config = NULL;
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for (;;) {
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int c, idx = 0;
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c = getopt_long(argc, argv, cmdopts_s, cmdopts, &idx);
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if (c == -1)
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break;
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switch (c) {
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case 'p':
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case 's':
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case 'f':
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/* ignored, for compatibility only */
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break;
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case 'h':
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help();
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return EXIT_SUCCESS;
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case 'V':
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puts(PACKAGE " version " VERSION);
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return EXIT_SUCCESS;
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case '?':
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return EXIT_FAILURE;
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default:
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ERR("unexpected getopt_long() value '%c'.\n",
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c);
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return EXIT_FAILURE;
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}
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}
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if (optind >= argc) {
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ERR("missing filename.\n");
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return EXIT_FAILURE;
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}
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filename = argv[optind];
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if (strcmp(filename, "-") == 0) {
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ERR("this tool does not support loading from stdin!\n");
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return EXIT_FAILURE;
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}
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for (i = optind + 1; i < argc; i++) {
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size_t len = strlen(argv[i]);
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void *tmp = realloc(opts, optslen + len + 2);
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if (tmp == NULL) {
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ERR("out of memory\n");
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free(opts);
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return EXIT_FAILURE;
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}
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opts = tmp;
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if (optslen > 0) {
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opts[optslen] = ' ';
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optslen++;
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}
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memcpy(opts + optslen, argv[i], len);
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optslen += len;
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opts[optslen] = '\0';
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}
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ctx = kmod_new(NULL, &null_config);
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if (!ctx) {
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ERR("kmod_new() failed!\n");
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free(opts);
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return EXIT_FAILURE;
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}
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err = kmod_module_new_from_path(ctx, filename, &mod);
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if (err < 0) {
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ERR("could not load module %s: %s\n", filename,
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strerror(-err));
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goto end;
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}
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err = kmod_module_insert_module(mod, 0, opts);
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if (err < 0) {
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ERR("could not insert module %s: %s\n", filename,
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mod_strerror(-err));
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}
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kmod_module_unref(mod);
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end:
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kmod_unref(ctx);
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free(opts);
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return err >= 0 ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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const struct kmod_cmd kmod_cmd_compat_insmod = {
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.name = "insmod",
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.cmd = do_insmod,
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.help = "compat insmod command",
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};
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