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-rw-r--r--src/udev/udevadm-verify.c236
1 files changed, 236 insertions, 0 deletions
diff --git a/src/udev/udevadm-verify.c b/src/udev/udevadm-verify.c
new file mode 100644
index 0000000..3220250
--- /dev/null
+++ b/src/udev/udevadm-verify.c
@@ -0,0 +1,236 @@
+/* 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 "stat-util.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 bool arg_summary = true;
+static bool arg_style = true;
+
+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"
+ " --no-summary Do not show summary\n"
+ " --no-style Ignore style issues\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,
+ ARG_NO_SUMMARY,
+ ARG_NO_STYLE,
+ };
+ 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 },
+ { "no-summary", no_argument, NULL, ARG_NO_SUMMARY },
+ { "no-style", no_argument, NULL, ARG_NO_STYLE },
+ {}
+ };
+
+ 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 ARG_NO_SUMMARY:
+ arg_summary = false;
+ break;
+
+ case ARG_NO_STYLE:
+ arg_style = false;
+ 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) {
+ UdevRuleFile *file;
+ int r;
+
+ r = udev_rules_parse_file(rules, fname, /* extra_checks = */ true, &file);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse rules file %s: %m", fname);
+ if (r == 0) /* empty file. */
+ return 0;
+
+ unsigned issues = udev_rule_file_get_issues(file);
+ unsigned mask = (1U << LOG_ERR) | (1U << LOG_WARNING);
+ if (issues & mask)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "%s: udev rules check failed.", fname);
+
+ if (arg_style && (issues & (1U << LOG_NOTICE)))
+ return log_warning_errno(SYNTHETIC_ERRNO(EINVAL),
+ "%s: udev rules have style issues.", fname);
+
+ return 0;
+}
+
+static int verify_rules_filelist(UdevRules *rules, char **files, size_t *fail_count, size_t *success_count, bool walk_dirs);
+
+static int verify_rules_dir(UdevRules *rules, const char *dir, size_t *fail_count, size_t *success_count) {
+ int r;
+ _cleanup_strv_free_ char **files = NULL;
+
+ assert(rules);
+ assert(dir);
+ assert(fail_count);
+ assert(success_count);
+
+ r = conf_files_list(&files, ".rules", NULL, 0, dir);
+ if (r < 0)
+ return log_error_errno(r, "Failed to enumerate rules files: %m");
+
+ return verify_rules_filelist(rules, files, fail_count, success_count, /* walk_dirs */ false);
+}
+
+static int verify_rules_filelist(UdevRules *rules, char **files, size_t *fail_count, size_t *success_count, bool walk_dirs) {
+ int r, rv = 0;
+
+ assert(rules);
+ assert(files);
+ assert(fail_count);
+ assert(success_count);
+
+ STRV_FOREACH(fp, files) {
+ if (walk_dirs && is_dir(*fp, /* follow = */ true) > 0)
+ r = verify_rules_dir(rules, *fp, fail_count, success_count);
+ else {
+ r = verify_rules_file(rules, *fp);
+ if (r < 0)
+ ++(*fail_count);
+ else
+ ++(*success_count);
+ }
+ if (r < 0 && rv >= 0)
+ rv = r;
+ }
+
+ return rv;
+}
+
+static int verify_rules(UdevRules *rules, char **files) {
+ size_t fail_count = 0, success_count = 0;
+ int r;
+
+ assert(rules);
+ assert(files);
+
+ r = verify_rules_filelist(rules, files, &fail_count, &success_count, /* walk_dirs */ true);
+
+ if (arg_summary)
+ printf("\n%s%zu udev rules files have been checked.%s\n"
+ " Success: %zu\n"
+ "%s Fail: %zu%s\n",
+ ansi_highlight(),
+ fail_count + success_count,
+ ansi_normal(),
+ success_count,
+ fail_count > 0 ? ansi_highlight_red() : "",
+ fail_count,
+ fail_count > 0 ? ansi_normal() : "");
+
+ return r;
+}
+
+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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