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/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <errno.h>
#include <getopt.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "conf-files.h"
#include "constants.h"
#include "log.h"
#include "parse-argument.h"
#include "pretty-print.h"
#include "static-destruct.h"
#include "strv.h"
#include "udev-rules.h"
#include "udevadm.h"
static ResolveNameTiming arg_resolve_name_timing = RESOLVE_NAME_EARLY;
static char *arg_root = NULL;
STATIC_DESTRUCTOR_REGISTER(arg_root, freep);
static int help(void) {
_cleanup_free_ char *link = NULL;
int r;
r = terminal_urlify_man("udevadm", "8", &link);
if (r < 0)
return log_oom();
printf("%s verify [OPTIONS] [FILE...]\n"
"\n%sVerify udev rules files.%s\n\n"
" -h --help Show this help\n"
" -V --version Show package version\n"
" -N --resolve-names=early|never When to resolve names\n"
" --root=PATH Operate on an alternate filesystem root\n"
"\nSee the %s for details.\n",
program_invocation_short_name,
ansi_highlight(),
ansi_normal(),
link);
return 0;
}
static int parse_argv(int argc, char *argv[]) {
enum {
ARG_ROOT = 0x100,
};
static const struct option options[] = {
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'V' },
{ "resolve-names", required_argument, NULL, 'N' },
{ "root", required_argument, NULL, ARG_ROOT },
{}
};
int r, c;
assert(argc >= 0);
assert(argv);
while ((c = getopt_long(argc, argv, "hVN:", options, NULL)) >= 0)
switch (c) {
case 'h':
return help();
case 'V':
return print_version();
case 'N':
arg_resolve_name_timing = resolve_name_timing_from_string(optarg);
if (arg_resolve_name_timing < 0)
return log_error_errno(arg_resolve_name_timing,
"--resolve-names= takes \"early\" or \"never\"");
/*
* In the verifier "late" has the effect of "never",
* and "never" would generate irrelevant diagnostics,
* so map "never" to "late".
*/
if (arg_resolve_name_timing == RESOLVE_NAME_NEVER)
arg_resolve_name_timing = RESOLVE_NAME_LATE;
break;
case ARG_ROOT:
r = parse_path_argument(optarg, /* suppress_root= */ true, &arg_root);
if (r < 0)
return r;
break;
case '?':
return -EINVAL;
default:
assert_not_reached();
}
if (arg_root && optind < argc)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
"Combination of --root= and FILEs is not supported.");
return 1;
}
static int verify_rules_file(UdevRules *rules, const char *fname) {
int r;
r = udev_rules_parse_file(rules, fname);
if (r < 0)
return log_error_errno(r, "Failed to parse rules file %s: %m", fname);
unsigned issues = udev_check_current_rule_file(rules);
unsigned mask = (1U << LOG_ERR) | (1U << LOG_WARNING);
if (issues & mask)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
"%s: udev rules check failed", fname);
return 0;
}
static int verify_rules(UdevRules *rules, char **files) {
int r, rv = 0;
STRV_FOREACH(fp, files) {
r = verify_rules_file(rules, *fp);
if (r < 0 && rv >= 0)
rv = r;
}
return rv;
}
int verify_main(int argc, char *argv[], void *userdata) {
_cleanup_(udev_rules_freep) UdevRules *rules = NULL;
int r;
r = parse_argv(argc, argv);
if (r <= 0)
return r;
rules = udev_rules_new(arg_resolve_name_timing);
if (!rules)
return -ENOMEM;
if (optind == argc) {
const char* const* rules_dirs = STRV_MAKE_CONST(CONF_PATHS("udev/rules.d"));
_cleanup_strv_free_ char **files = NULL;
r = conf_files_list_strv(&files, ".rules", arg_root, 0, rules_dirs);
if (r < 0)
return log_error_errno(r, "Failed to enumerate rules files: %m");
if (arg_root && strv_isempty(files))
return log_error_errno(SYNTHETIC_ERRNO(ENOENT),
"No rules files found in %s", arg_root);
return verify_rules(rules, files);
}
return verify_rules(rules, strv_skip(argv, optind));
}
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