Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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));
+}