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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2011-2013 ProFUSION embedded systems
*/
#include <errno.h>
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <shared/util.h>
#include <libkmod/libkmod.h>
#include "kmod.h"
static const char cmdopts_s[] = "fsvVh";
static const struct option cmdopts[] = {
// clang-format off
{ "force", no_argument, 0, 'f' },
{ "syslog", no_argument, 0, 's' },
{ "verbose", no_argument, 0, 'v' },
{ "version", no_argument, 0, 'V' },
{ "help", no_argument, 0, 'h' },
{ NULL, 0, 0, 0 },
// clang-format on
};
static void help(void)
{
printf("Usage:\n"
"\t%s [options] filename [module options]\n"
"Options:\n"
"\t-f, --force DANGEROUS: forces a module load, may cause\n"
"\t data corruption and crash your machine\n"
"\t-s, --syslog print to syslog, not stderr\n"
"\t-v, --verbose enables more messages\n"
"\t-V, --version show version\n"
"\t-h, --help show this help\n",
program_invocation_short_name);
}
static const char *mod_strerror(int err)
{
switch (err) {
case ENOEXEC:
return "Invalid module format";
case ENOENT:
return "Unknown symbol in module";
case ESRCH:
return "Module has wrong symbol version";
case EINVAL:
return "Invalid parameters";
default:
return strerror(err);
}
}
static int do_insmod(int argc, char *argv[])
{
struct kmod_ctx *ctx = NULL;
struct kmod_module *mod;
const char *filename;
char *opts = NULL;
int verbose = LOG_ERR;
bool use_syslog = false;
int c, r = 0;
const char *null_config = NULL;
unsigned int flags = 0;
while ((c = getopt_long(argc, argv, cmdopts_s, cmdopts, NULL)) != -1) {
switch (c) {
case 'f':
flags |= KMOD_PROBE_FORCE_MODVERSION;
flags |= KMOD_PROBE_FORCE_VERMAGIC;
break;
case 's':
use_syslog = true;
break;
case 'v':
verbose++;
break;
case 'h':
help();
return EXIT_SUCCESS;
case 'V':
kmod_version();
return EXIT_SUCCESS;
case '?':
return EXIT_FAILURE;
default:
ERR("unexpected getopt_long() value '%c'.\n", c);
return EXIT_FAILURE;
}
}
log_open(use_syslog);
if (optind >= argc) {
ERR("missing filename.\n");
r = EXIT_FAILURE;
goto end;
}
filename = argv[optind];
if (streq(filename, "-")) {
ERR("this tool does not support loading from stdin!\n");
r = EXIT_FAILURE;
goto end;
}
r = options_from_array(argv + optind + 1, argc - optind - 1, &opts);
if (r < 0)
goto end;
ctx = kmod_new(NULL, &null_config);
if (!ctx) {
ERR("kmod_new() failed!\n");
r = EXIT_FAILURE;
goto end;
}
log_setup_kmod_log(ctx, verbose);
r = kmod_module_new_from_path(ctx, filename, &mod);
if (r < 0) {
ERR("could not load module %s: %s\n", filename, strerror(-r));
goto end;
}
r = kmod_module_insert_module(mod, flags, opts);
if (r < 0)
ERR("could not insert module %s: %s\n", filename, mod_strerror(-r));
kmod_module_unref(mod);
end:
kmod_unref(ctx);
free(opts);
log_close();
return r == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
const struct kmod_cmd kmod_cmd_compat_insmod = {
.name = "insmod",
.cmd = do_insmod,
.help = "compat insmod command",
};
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