+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2011 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <locale.h>
-#include <fcntl.h>
-#include <fnmatch.h>
-#include <errno.h>
-#include <stddef.h>
-#include <string.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <getopt.h>
-#include <signal.h>
-#include <poll.h>
-#include <sys/stat.h>
-#include <sys/inotify.h>
-#include <linux/fs.h>
-
-#include "sd-journal.h"
-#include "sd-bus.h"
-
-#include "log.h"
-#include "logs-show.h"
-#include "util.h"
-#include "acl-util.h"
-#include "path-util.h"
-#include "fileio.h"
-#include "build.h"
-#include "pager.h"
-#include "strv.h"
-#include "set.h"
-#include "sigbus.h"
-#include "journal-internal.h"
-#include "journal-def.h"
-#include "journal-verify.h"
-#include "journal-qrcode.h"
-#include "journal-vacuum.h"
-#include "fsprg.h"
-#include "unit-name.h"
-#include "catalog.h"
-#include "mkdir.h"
-#include "bus-util.h"
-#include "bus-error.h"
-
-#define DEFAULT_FSS_INTERVAL_USEC (15*USEC_PER_MINUTE)
-
-enum {
- /* Special values for arg_lines */
- ARG_LINES_DEFAULT = -2,
- ARG_LINES_ALL = -1,
-};
-
-static OutputMode arg_output = OUTPUT_SHORT;
-static bool arg_utc = false;
-static bool arg_pager_end = false;
-static bool arg_follow = false;
-static bool arg_full = true;
-static bool arg_all = false;
-static bool arg_no_pager = false;
-static int arg_lines = ARG_LINES_DEFAULT;
-static bool arg_no_tail = false;
-static bool arg_quiet = false;
-static bool arg_merge = false;
-static bool arg_boot = false;
-static sd_id128_t arg_boot_id = {};
-static int arg_boot_offset = 0;
-static bool arg_dmesg = false;
-static const char *arg_cursor = NULL;
-static const char *arg_after_cursor = NULL;
-static bool arg_show_cursor = false;
-static const char *arg_directory = NULL;
-static char **arg_file = NULL;
-static int arg_priorities = 0xFF;
-static const char *arg_verify_key = NULL;
-#ifdef HAVE_GCRYPT
-static usec_t arg_interval = DEFAULT_FSS_INTERVAL_USEC;
-static bool arg_force = false;
-#endif
-static usec_t arg_since, arg_until;
-static bool arg_since_set = false, arg_until_set = false;
-static char **arg_syslog_identifier = NULL;
-static char **arg_system_units = NULL;
-static char **arg_user_units = NULL;
-static const char *arg_field = NULL;
-static bool arg_catalog = false;
-static bool arg_reverse = false;
-static int arg_journal_type = 0;
-static const char *arg_root = NULL;
-static const char *arg_machine = NULL;
-static off_t arg_vacuum_size = (off_t) -1;
-static usec_t arg_vacuum_time = USEC_INFINITY;
-
-static enum {
- ACTION_SHOW,
- ACTION_NEW_ID128,
- ACTION_PRINT_HEADER,
- ACTION_SETUP_KEYS,
- ACTION_VERIFY,
- ACTION_DISK_USAGE,
- ACTION_LIST_CATALOG,
- ACTION_DUMP_CATALOG,
- ACTION_UPDATE_CATALOG,
- ACTION_LIST_BOOTS,
- ACTION_FLUSH,
- ACTION_VACUUM,
-} arg_action = ACTION_SHOW;
-
-typedef struct boot_id_t {
- sd_id128_t id;
- uint64_t first;
- uint64_t last;
-} boot_id_t;
-
-static void pager_open_if_enabled(void) {
-
- if (arg_no_pager)
- return;
-
- pager_open(arg_pager_end);
-}
-
-static char *format_timestamp_maybe_utc(char *buf, size_t l, usec_t t) {
-
- if (arg_utc)
- return format_timestamp_utc(buf, l, t);
-
- return format_timestamp(buf, l, t);
-}
-
-static int parse_boot_descriptor(const char *x, sd_id128_t *boot_id, int *offset) {
- sd_id128_t id = SD_ID128_NULL;
- int off = 0, r;
-
- if (strlen(x) >= 32) {
- char *t;
-
- t = strndupa(x, 32);
- r = sd_id128_from_string(t, &id);
- if (r >= 0)
- x += 32;
-
- if (*x != '-' && *x != '+' && *x != 0)
- return -EINVAL;
-
- if (*x != 0) {
- r = safe_atoi(x, &off);
- if (r < 0)
- return r;
- }
- } else {
- r = safe_atoi(x, &off);
- if (r < 0)
- return r;
- }
-
- if (boot_id)
- *boot_id = id;
-
- if (offset)
- *offset = off;
-
- return 0;
-}
-
-static void help(void) {
-
- pager_open_if_enabled();
-
- printf("%s [OPTIONS...] [MATCHES...]\n\n"
- "Query the journal.\n\n"
- "Flags:\n"
- " --system Show the system journal\n"
- " --user Show the user journal for the current user\n"
- " -M --machine=CONTAINER Operate on local container\n"
- " --since=DATE Show entries not older than the specified date\n"
- " --until=DATE Show entries not newer than the specified date\n"
- " -c --cursor=CURSOR Show entries starting at the specified cursor\n"
- " --after-cursor=CURSOR Show entries after the specified cursor\n"
- " --show-cursor Print the cursor after all the entries\n"
- " -b --boot[=ID] Show current boot or the specified boot\n"
- " --list-boots Show terse information about recorded boots\n"
- " -k --dmesg Show kernel message log from the current boot\n"
- " -u --unit=UNIT Show logs from the specified unit\n"
- " --user-unit=UNIT Show logs from the specified user unit\n"
- " -t --identifier=STRING Show entries with the specified syslog identifier\n"
- " -p --priority=RANGE Show entries with the specified priority\n"
- " -e --pager-end Immediately jump to the end in the pager\n"
- " -f --follow Follow the journal\n"
- " -n --lines[=INTEGER] Number of journal entries to show\n"
- " --no-tail Show all lines, even in follow mode\n"
- " -r --reverse Show the newest entries first\n"
- " -o --output=STRING Change journal output mode (short, short-iso,\n"
- " short-precise, short-monotonic, verbose,\n"
- " export, json, json-pretty, json-sse, cat)\n"
- " --utc Express time in Coordinated Universal Time (UTC)\n"
- " -x --catalog Add message explanations where available\n"
- " --no-full Ellipsize fields\n"
- " -a --all Show all fields, including long and unprintable\n"
- " -q --quiet Do not show privilege warning\n"
- " --no-pager Do not pipe output into a pager\n"
- " -m --merge Show entries from all available journals\n"
- " -D --directory=PATH Show journal files from directory\n"
- " --file=PATH Show journal file\n"
- " --root=ROOT Operate on catalog files underneath the root ROOT\n"
-#ifdef HAVE_GCRYPT
- " --interval=TIME Time interval for changing the FSS sealing key\n"
- " --verify-key=KEY Specify FSS verification key\n"
- " --force Override of the FSS key pair with --setup-keys\n"
-#endif
- "\nCommands:\n"
- " -h --help Show this help text\n"
- " --version Show package version\n"
- " -F --field=FIELD List all values that a specified field takes\n"
- " --new-id128 Generate a new 128-bit ID\n"
- " --disk-usage Show total disk usage of all journal files\n"
- " --vacuum-size=BYTES Reduce disk usage below specified size\n"
- " --vacuum-time=TIME Remove journal files older than specified date\n"
- " --flush Flush all journal data from /run into /var\n"
- " --header Show journal header information\n"
- " --list-catalog Show all message IDs in the catalog\n"
- " --dump-catalog Show entries in the message catalog\n"
- " --update-catalog Update the message catalog database\n"
-#ifdef HAVE_GCRYPT
- " --setup-keys Generate a new FSS key pair\n"
- " --verify Verify journal file consistency\n"
-#endif
- , program_invocation_short_name);
-}
-
-static int parse_argv(int argc, char *argv[]) {
-
- enum {
- ARG_VERSION = 0x100,
- ARG_NO_PAGER,
- ARG_NO_FULL,
- ARG_NO_TAIL,
- ARG_NEW_ID128,
- ARG_LIST_BOOTS,
- ARG_USER,
- ARG_SYSTEM,
- ARG_ROOT,
- ARG_HEADER,
- ARG_SETUP_KEYS,
- ARG_FILE,
- ARG_INTERVAL,
- ARG_VERIFY,
- ARG_VERIFY_KEY,
- ARG_DISK_USAGE,
- ARG_SINCE,
- ARG_UNTIL,
- ARG_AFTER_CURSOR,
- ARG_SHOW_CURSOR,
- ARG_USER_UNIT,
- ARG_LIST_CATALOG,
- ARG_DUMP_CATALOG,
- ARG_UPDATE_CATALOG,
- ARG_FORCE,
- ARG_UTC,
- ARG_FLUSH,
- ARG_VACUUM_SIZE,
- ARG_VACUUM_TIME,
- };
-
- static const struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "version" , no_argument, NULL, ARG_VERSION },
- { "no-pager", no_argument, NULL, ARG_NO_PAGER },
- { "pager-end", no_argument, NULL, 'e' },
- { "follow", no_argument, NULL, 'f' },
- { "force", no_argument, NULL, ARG_FORCE },
- { "output", required_argument, NULL, 'o' },
- { "all", no_argument, NULL, 'a' },
- { "full", no_argument, NULL, 'l' },
- { "no-full", no_argument, NULL, ARG_NO_FULL },
- { "lines", optional_argument, NULL, 'n' },
- { "no-tail", no_argument, NULL, ARG_NO_TAIL },
- { "new-id128", no_argument, NULL, ARG_NEW_ID128 },
- { "quiet", no_argument, NULL, 'q' },
- { "merge", no_argument, NULL, 'm' },
- { "boot", optional_argument, NULL, 'b' },
- { "list-boots", no_argument, NULL, ARG_LIST_BOOTS },
- { "this-boot", optional_argument, NULL, 'b' }, /* deprecated */
- { "dmesg", no_argument, NULL, 'k' },
- { "system", no_argument, NULL, ARG_SYSTEM },
- { "user", no_argument, NULL, ARG_USER },
- { "directory", required_argument, NULL, 'D' },
- { "file", required_argument, NULL, ARG_FILE },
- { "root", required_argument, NULL, ARG_ROOT },
- { "header", no_argument, NULL, ARG_HEADER },
- { "identifier", required_argument, NULL, 't' },
- { "priority", required_argument, NULL, 'p' },
- { "setup-keys", no_argument, NULL, ARG_SETUP_KEYS },
- { "interval", required_argument, NULL, ARG_INTERVAL },
- { "verify", no_argument, NULL, ARG_VERIFY },
- { "verify-key", required_argument, NULL, ARG_VERIFY_KEY },
- { "disk-usage", no_argument, NULL, ARG_DISK_USAGE },
- { "cursor", required_argument, NULL, 'c' },
- { "after-cursor", required_argument, NULL, ARG_AFTER_CURSOR },
- { "show-cursor", no_argument, NULL, ARG_SHOW_CURSOR },
- { "since", required_argument, NULL, ARG_SINCE },
- { "until", required_argument, NULL, ARG_UNTIL },
- { "unit", required_argument, NULL, 'u' },
- { "user-unit", required_argument, NULL, ARG_USER_UNIT },
- { "field", required_argument, NULL, 'F' },
- { "catalog", no_argument, NULL, 'x' },
- { "list-catalog", no_argument, NULL, ARG_LIST_CATALOG },
- { "dump-catalog", no_argument, NULL, ARG_DUMP_CATALOG },
- { "update-catalog", no_argument, NULL, ARG_UPDATE_CATALOG },
- { "reverse", no_argument, NULL, 'r' },
- { "machine", required_argument, NULL, 'M' },
- { "utc", no_argument, NULL, ARG_UTC },
- { "flush", no_argument, NULL, ARG_FLUSH },
- { "vacuum-size", required_argument, NULL, ARG_VACUUM_SIZE },
- { "vacuum-time", required_argument, NULL, ARG_VACUUM_TIME },
- {}
- };
-
- int c, r;
-
- assert(argc >= 0);
- assert(argv);
-
- while ((c = getopt_long(argc, argv, "hefo:aln::qmb::kD:p:c:t:u:F:xrM:", options, NULL)) >= 0)
-
- switch (c) {
-
- case 'h':
- help();
- return 0;
-
- case ARG_VERSION:
- puts(PACKAGE_STRING);
- puts(SYSTEMD_FEATURES);
- return 0;
-
- case ARG_NO_PAGER:
- arg_no_pager = true;
- break;
-
- case 'e':
- arg_pager_end = true;
-
- if (arg_lines == ARG_LINES_DEFAULT)
- arg_lines = 1000;
-
- break;
-
- case 'f':
- arg_follow = true;
- break;
-
- case 'o':
- arg_output = output_mode_from_string(optarg);
- if (arg_output < 0) {
- log_error("Unknown output format '%s'.", optarg);
- return -EINVAL;
- }
-
- if (arg_output == OUTPUT_EXPORT ||
- arg_output == OUTPUT_JSON ||
- arg_output == OUTPUT_JSON_PRETTY ||
- arg_output == OUTPUT_JSON_SSE ||
- arg_output == OUTPUT_CAT)
- arg_quiet = true;
-
- break;
-
- case 'l':
- arg_full = true;
- break;
-
- case ARG_NO_FULL:
- arg_full = false;
- break;
-
- case 'a':
- arg_all = true;
- break;
-
- case 'n':
- if (optarg) {
- if (streq(optarg, "all"))
- arg_lines = ARG_LINES_ALL;
- else {
- r = safe_atoi(optarg, &arg_lines);
- if (r < 0 || arg_lines < 0) {
- log_error("Failed to parse lines '%s'", optarg);
- return -EINVAL;
- }
- }
- } else {
- arg_lines = 10;
-
- /* Hmm, no argument? Maybe the next
- * word on the command line is
- * supposed to be the argument? Let's
- * see if there is one, and is
- * parsable. */
- if (optind < argc) {
- int n;
- if (streq(argv[optind], "all")) {
- arg_lines = ARG_LINES_ALL;
- optind++;
- } else if (safe_atoi(argv[optind], &n) >= 0 && n >= 0) {
- arg_lines = n;
- optind++;
- }
- }
- }
-
- break;
-
- case ARG_NO_TAIL:
- arg_no_tail = true;
- break;
-
- case ARG_NEW_ID128:
- arg_action = ACTION_NEW_ID128;
- break;
-
- case 'q':
- arg_quiet = true;
- break;
-
- case 'm':
- arg_merge = true;
- break;
-
- case 'b':
- arg_boot = true;
-
- if (optarg) {
- r = parse_boot_descriptor(optarg, &arg_boot_id, &arg_boot_offset);
- if (r < 0) {
- log_error("Failed to parse boot descriptor '%s'", optarg);
- return -EINVAL;
- }
- } else {
-
- /* Hmm, no argument? Maybe the next
- * word on the command line is
- * supposed to be the argument? Let's
- * see if there is one and is parsable
- * as a boot descriptor... */
-
- if (optind < argc &&
- parse_boot_descriptor(argv[optind], &arg_boot_id, &arg_boot_offset) >= 0)
- optind++;
- }
-
- break;
-
- case ARG_LIST_BOOTS:
- arg_action = ACTION_LIST_BOOTS;
- break;
-
- case 'k':
- arg_boot = arg_dmesg = true;
- break;
-
- case ARG_SYSTEM:
- arg_journal_type |= SD_JOURNAL_SYSTEM;
- break;
-
- case ARG_USER:
- arg_journal_type |= SD_JOURNAL_CURRENT_USER;
- break;
-
- case 'M':
- arg_machine = optarg;
- break;
-
- case 'D':
- arg_directory = optarg;
- break;
-
- case ARG_FILE:
- r = glob_extend(&arg_file, optarg);
- if (r < 0)
- return log_error_errno(r, "Failed to add paths: %m");
- break;
-
- case ARG_ROOT:
- arg_root = optarg;
- break;
-
- case 'c':
- arg_cursor = optarg;
- break;
-
- case ARG_AFTER_CURSOR:
- arg_after_cursor = optarg;
- break;
-
- case ARG_SHOW_CURSOR:
- arg_show_cursor = true;
- break;
-
- case ARG_HEADER:
- arg_action = ACTION_PRINT_HEADER;
- break;
-
- case ARG_VERIFY:
- arg_action = ACTION_VERIFY;
- break;
-
- case ARG_DISK_USAGE:
- arg_action = ACTION_DISK_USAGE;
- break;
-
- case ARG_VACUUM_SIZE:
- r = parse_size(optarg, 1024, &arg_vacuum_size);
- if (r < 0) {
- log_error("Failed to parse vacuum size: %s", optarg);
- return r;
- }
-
- arg_action = ACTION_VACUUM;
- break;
-
- case ARG_VACUUM_TIME:
- r = parse_sec(optarg, &arg_vacuum_time);
- if (r < 0) {
- log_error("Failed to parse vacuum time: %s", optarg);
- return r;
- }
-
- arg_action = ACTION_VACUUM;
- break;
-
-#ifdef HAVE_GCRYPT
- case ARG_FORCE:
- arg_force = true;
- break;
-
- case ARG_SETUP_KEYS:
- arg_action = ACTION_SETUP_KEYS;
- break;
-
-
- case ARG_VERIFY_KEY:
- arg_action = ACTION_VERIFY;
- arg_verify_key = optarg;
- arg_merge = false;
- break;
-
- case ARG_INTERVAL:
- r = parse_sec(optarg, &arg_interval);
- if (r < 0 || arg_interval <= 0) {
- log_error("Failed to parse sealing key change interval: %s", optarg);
- return -EINVAL;
- }
- break;
-#else
- case ARG_SETUP_KEYS:
- case ARG_VERIFY_KEY:
- case ARG_INTERVAL:
- case ARG_FORCE:
- log_error("Forward-secure sealing not available.");
- return -EOPNOTSUPP;
-#endif
-
- case 'p': {
- const char *dots;
-
- dots = strstr(optarg, "..");
- if (dots) {
- char *a;
- int from, to, i;
-
- /* a range */
- a = strndup(optarg, dots - optarg);
- if (!a)
- return log_oom();
-
- from = log_level_from_string(a);
- to = log_level_from_string(dots + 2);
- free(a);
-
- if (from < 0 || to < 0) {
- log_error("Failed to parse log level range %s", optarg);
- return -EINVAL;
- }
-
- arg_priorities = 0;
-
- if (from < to) {
- for (i = from; i <= to; i++)
- arg_priorities |= 1 << i;
- } else {
- for (i = to; i <= from; i++)
- arg_priorities |= 1 << i;
- }
-
- } else {
- int p, i;
-
- p = log_level_from_string(optarg);
- if (p < 0) {
- log_error("Unknown log level %s", optarg);
- return -EINVAL;
- }
-
- arg_priorities = 0;
-
- for (i = 0; i <= p; i++)
- arg_priorities |= 1 << i;
- }
-
- break;
- }
-
- case ARG_SINCE:
- r = parse_timestamp(optarg, &arg_since);
- if (r < 0) {
- log_error("Failed to parse timestamp: %s", optarg);
- return -EINVAL;
- }
- arg_since_set = true;
- break;
-
- case ARG_UNTIL:
- r = parse_timestamp(optarg, &arg_until);
- if (r < 0) {
- log_error("Failed to parse timestamp: %s", optarg);
- return -EINVAL;
- }
- arg_until_set = true;
- break;
-
- case 't':
- r = strv_extend(&arg_syslog_identifier, optarg);
- if (r < 0)
- return log_oom();
- break;
-
- case 'u':
- r = strv_extend(&arg_system_units, optarg);
- if (r < 0)
- return log_oom();
- break;
-
- case ARG_USER_UNIT:
- r = strv_extend(&arg_user_units, optarg);
- if (r < 0)
- return log_oom();
- break;
-
- case 'F':
- arg_field = optarg;
- break;
-
- case 'x':
- arg_catalog = true;
- break;
-
- case ARG_LIST_CATALOG:
- arg_action = ACTION_LIST_CATALOG;
- break;
-
- case ARG_DUMP_CATALOG:
- arg_action = ACTION_DUMP_CATALOG;
- break;
-
- case ARG_UPDATE_CATALOG:
- arg_action = ACTION_UPDATE_CATALOG;
- break;
-
- case 'r':
- arg_reverse = true;
- break;
-
- case ARG_UTC:
- arg_utc = true;
- break;
-
- case ARG_FLUSH:
- arg_action = ACTION_FLUSH;
- break;
-
- case '?':
- return -EINVAL;
-
- default:
- assert_not_reached("Unhandled option");
- }
-
- if (arg_follow && !arg_no_tail && !arg_since && arg_lines == ARG_LINES_DEFAULT)
- arg_lines = 10;
-
- if (!!arg_directory + !!arg_file + !!arg_machine > 1) {
- log_error("Please specify either -D/--directory= or --file= or -M/--machine=, not more than one.");
- return -EINVAL;
- }
-
- if (arg_since_set && arg_until_set && arg_since > arg_until) {
- log_error("--since= must be before --until=.");
- return -EINVAL;
- }
-
- if (!!arg_cursor + !!arg_after_cursor + !!arg_since_set > 1) {
- log_error("Please specify only one of --since=, --cursor=, and --after-cursor.");
- return -EINVAL;
- }
-
- if (arg_follow && arg_reverse) {
- log_error("Please specify either --reverse= or --follow=, not both.");
- return -EINVAL;
- }
-
- if (arg_action != ACTION_SHOW && optind < argc) {
- log_error("Extraneous arguments starting with '%s'", argv[optind]);
- return -EINVAL;
- }
-
- return 1;
-}
-
-static int generate_new_id128(void) {
- sd_id128_t id;
- int r;
- unsigned i;
-
- r = sd_id128_randomize(&id);
- if (r < 0)
- return log_error_errno(r, "Failed to generate ID: %m");
-
- printf("As string:\n"
- SD_ID128_FORMAT_STR "\n\n"
- "As UUID:\n"
- "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n\n"
- "As macro:\n"
- "#define MESSAGE_XYZ SD_ID128_MAKE(",
- SD_ID128_FORMAT_VAL(id),
- SD_ID128_FORMAT_VAL(id));
- for (i = 0; i < 16; i++)
- printf("%02x%s", id.bytes[i], i != 15 ? "," : "");
- fputs(")\n\n", stdout);
-
- printf("As Python constant:\n"
- ">>> import uuid\n"
- ">>> MESSAGE_XYZ = uuid.UUID('" SD_ID128_FORMAT_STR "')\n",
- SD_ID128_FORMAT_VAL(id));
-
- return 0;
-}
-
-static int add_matches(sd_journal *j, char **args) {
- char **i;
- bool have_term = false;
-
- assert(j);
-
- STRV_FOREACH(i, args) {
- int r;
-
- if (streq(*i, "+")) {
- if (!have_term)
- break;
- r = sd_journal_add_disjunction(j);
- have_term = false;
-
- } else if (path_is_absolute(*i)) {
- _cleanup_free_ char *p, *t = NULL, *t2 = NULL;
- const char *path;
- _cleanup_free_ char *interpreter = NULL;
- struct stat st;
-
- p = canonicalize_file_name(*i);
- path = p ? p : *i;
-
- if (stat(path, &st) < 0)
- return log_error_errno(errno, "Couldn't stat file: %m");
-
- if (S_ISREG(st.st_mode) && (0111 & st.st_mode)) {
- if (executable_is_script(path, &interpreter) > 0) {
- _cleanup_free_ char *comm;
-
- comm = strndup(basename(path), 15);
- if (!comm)
- return log_oom();
-
- t = strappend("_COMM=", comm);
-
- /* Append _EXE only if the interpreter is not a link.
- Otherwise, it might be outdated often. */
- if (lstat(interpreter, &st) == 0 &&
- !S_ISLNK(st.st_mode)) {
- t2 = strappend("_EXE=", interpreter);
- if (!t2)
- return log_oom();
- }
- } else
- t = strappend("_EXE=", path);
- } else if (S_ISCHR(st.st_mode)) {
- if (asprintf(&t, "_KERNEL_DEVICE=c%u:%u",
- major(st.st_rdev),
- minor(st.st_rdev)) < 0)
- return -ENOMEM;
- } else if (S_ISBLK(st.st_mode)) {
- if (asprintf(&t, "_KERNEL_DEVICE=b%u:%u",
- major(st.st_rdev),
- minor(st.st_rdev)) < 0)
- return -ENOMEM;
- } else {
- log_error("File is neither a device node, nor regular file, nor executable: %s", *i);
- return -EINVAL;
- }
-
- if (!t)
- return log_oom();
-
- r = sd_journal_add_match(j, t, 0);
- if (t2)
- r = sd_journal_add_match(j, t2, 0);
- have_term = true;
-
- } else {
- r = sd_journal_add_match(j, *i, 0);
- have_term = true;
- }
-
- if (r < 0)
- return log_error_errno(r, "Failed to add match '%s': %m", *i);
- }
-
- if (!strv_isempty(args) && !have_term) {
- log_error("\"+\" can only be used between terms");
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int boot_id_cmp(const void *a, const void *b) {
- uint64_t _a, _b;
-
- _a = ((const boot_id_t *)a)->first;
- _b = ((const boot_id_t *)b)->first;
-
- return _a < _b ? -1 : (_a > _b ? 1 : 0);
-}
-
-static int get_boots(sd_journal *j,
- boot_id_t **boots,
- unsigned int *count,
- boot_id_t *query_ref_boot) {
- int r;
- const void *data;
- size_t length, allocated = 0;
-
- assert(j);
- assert(boots);
- assert(count);
-
- r = sd_journal_query_unique(j, "_BOOT_ID");
- if (r < 0)
- return r;
-
- *count = 0;
- SD_JOURNAL_FOREACH_UNIQUE(j, data, length) {
- boot_id_t *id;
-
- assert(startswith(data, "_BOOT_ID="));
-
- if (!GREEDY_REALLOC(*boots, allocated, *count + 1))
- return log_oom();
-
- id = *boots + *count;
-
- r = sd_id128_from_string(((const char *)data) + strlen("_BOOT_ID="), &id->id);
- if (r < 0)
- continue;
-
- r = sd_journal_add_match(j, data, length);
- if (r < 0)
- return r;
-
- r = sd_journal_seek_head(j);
- if (r < 0)
- return r;
-
- r = sd_journal_next(j);
- if (r < 0)
- return r;
- else if (r == 0)
- goto flush;
-
- r = sd_journal_get_realtime_usec(j, &id->first);
- if (r < 0)
- return r;
-
- if (query_ref_boot) {
- id->last = 0;
- if (sd_id128_equal(id->id, query_ref_boot->id))
- *query_ref_boot = *id;
- } else {
- r = sd_journal_seek_tail(j);
- if (r < 0)
- return r;
-
- r = sd_journal_previous(j);
- if (r < 0)
- return r;
- else if (r == 0)
- goto flush;
-
- r = sd_journal_get_realtime_usec(j, &id->last);
- if (r < 0)
- return r;
- }
-
- (*count)++;
- flush:
- sd_journal_flush_matches(j);
- }
-
- qsort_safe(*boots, *count, sizeof(boot_id_t), boot_id_cmp);
- return 0;
-}
-
-static int list_boots(sd_journal *j) {
- int r, w, i;
- unsigned int count;
- boot_id_t *id;
- _cleanup_free_ boot_id_t *all_ids = NULL;
-
- assert(j);
-
- r = get_boots(j, &all_ids, &count, NULL);
- if (r < 0)
- return r;
-
- pager_open_if_enabled();
-
- /* numbers are one less, but we need an extra char for the sign */
- w = DECIMAL_STR_WIDTH(count - 1) + 1;
-
- for (id = all_ids, i = 0; id < all_ids + count; id++, i++) {
- char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX];
-
- printf("% *i " SD_ID128_FORMAT_STR " %s—%s\n",
- w, i - count + 1,
- SD_ID128_FORMAT_VAL(id->id),
- format_timestamp_maybe_utc(a, sizeof(a), id->first),
- format_timestamp_maybe_utc(b, sizeof(b), id->last));
- }
-
- return 0;
-}
-
-static int get_boot_id_by_offset(sd_journal *j, sd_id128_t *boot_id, int offset) {
- int r;
- unsigned int count;
- boot_id_t ref_boot_id = {}, *id;
- _cleanup_free_ boot_id_t *all_ids = NULL;
-
- assert(j);
- assert(boot_id);
-
- ref_boot_id.id = *boot_id;
- r = get_boots(j, &all_ids, &count, &ref_boot_id);
- if (r < 0)
- return r;
-
- if (sd_id128_equal(*boot_id, SD_ID128_NULL)) {
- if (offset > (int) count || offset <= -(int)count)
- return -EADDRNOTAVAIL;
-
- *boot_id = all_ids[(offset <= 0)*count + offset - 1].id;
- } else {
- id = bsearch(&ref_boot_id, all_ids, count, sizeof(boot_id_t), boot_id_cmp);
-
- if (!id ||
- offset <= 0 ? (id - all_ids) + offset < 0 :
- (id - all_ids) + offset >= (int) count)
- return -EADDRNOTAVAIL;
-
- *boot_id = (id + offset)->id;
- }
-
- return 0;
-}
-
-static int add_boot(sd_journal *j) {
- char match[9+32+1] = "_BOOT_ID=";
- int r;
-
- assert(j);
-
- if (!arg_boot)
- return 0;
-
- if (arg_boot_offset == 0 && sd_id128_equal(arg_boot_id, SD_ID128_NULL))
- return add_match_this_boot(j, arg_machine);
-
- r = get_boot_id_by_offset(j, &arg_boot_id, arg_boot_offset);
- if (r < 0) {
- if (sd_id128_equal(arg_boot_id, SD_ID128_NULL))
- log_error_errno(r, "Failed to look up boot %+i: %m", arg_boot_offset);
- else
- log_error("Failed to look up boot ID "SD_ID128_FORMAT_STR"%+i: %s",
- SD_ID128_FORMAT_VAL(arg_boot_id), arg_boot_offset, strerror(-r));
- return r;
- }
-
- sd_id128_to_string(arg_boot_id, match + 9);
-
- r = sd_journal_add_match(j, match, sizeof(match) - 1);
- if (r < 0)
- return log_error_errno(r, "Failed to add match: %m");
-
- r = sd_journal_add_conjunction(j);
- if (r < 0)
- return r;
-
- return 0;
-}
-
-static int add_dmesg(sd_journal *j) {
- int r;
- assert(j);
-
- if (!arg_dmesg)
- return 0;
-
- r = sd_journal_add_match(j, "_TRANSPORT=kernel", strlen("_TRANSPORT=kernel"));
- if (r < 0)
- return log_error_errno(r, "Failed to add match: %m");
-
- r = sd_journal_add_conjunction(j);
- if (r < 0)
- return r;
-
- return 0;
-}
-
-static int get_possible_units(sd_journal *j,
- const char *fields,
- char **patterns,
- Set **units) {
- _cleanup_set_free_free_ Set *found;
- const char *field;
- int r;
-
- found = set_new(&string_hash_ops);
- if (!found)
- return log_oom();
-
- NULSTR_FOREACH(field, fields) {
- const void *data;
- size_t size;
-
- r = sd_journal_query_unique(j, field);
- if (r < 0)
- return r;
-
- SD_JOURNAL_FOREACH_UNIQUE(j, data, size) {
- char **pattern, *eq;
- size_t prefix;
- _cleanup_free_ char *u = NULL;
-
- eq = memchr(data, '=', size);
- if (eq)
- prefix = eq - (char*) data + 1;
- else
- prefix = 0;
-
- u = strndup((char*) data + prefix, size - prefix);
- if (!u)
- return log_oom();
-
- STRV_FOREACH(pattern, patterns)
- if (fnmatch(*pattern, u, FNM_NOESCAPE) == 0) {
- log_debug("Matched %s with pattern %s=%s", u, field, *pattern);
-
- r = set_consume(found, u);
- u = NULL;
- if (r < 0 && r != -EEXIST)
- return r;
-
- break;
- }
- }
- }
-
- *units = found;
- found = NULL;
- return 0;
-}
-
-/* This list is supposed to return the superset of unit names
- * possibly matched by rules added with add_matches_for_unit... */
-#define SYSTEM_UNITS \
- "_SYSTEMD_UNIT\0" \
- "COREDUMP_UNIT\0" \
- "UNIT\0" \
- "OBJECT_SYSTEMD_UNIT\0" \
- "_SYSTEMD_SLICE\0"
-
-/* ... and add_matches_for_user_unit */
-#define USER_UNITS \
- "_SYSTEMD_USER_UNIT\0" \
- "USER_UNIT\0" \
- "COREDUMP_USER_UNIT\0" \
- "OBJECT_SYSTEMD_USER_UNIT\0"
-
-static int add_units(sd_journal *j) {
- _cleanup_strv_free_ char **patterns = NULL;
- int r, count = 0;
- char **i;
-
- assert(j);
-
- STRV_FOREACH(i, arg_system_units) {
- _cleanup_free_ char *u = NULL;
-
- u = unit_name_mangle(*i, MANGLE_GLOB);
- if (!u)
- return log_oom();
-
- if (string_is_glob(u)) {
- r = strv_push(&patterns, u);
- if (r < 0)
- return r;
- u = NULL;
- } else {
- r = add_matches_for_unit(j, u);
- if (r < 0)
- return r;
- r = sd_journal_add_disjunction(j);
- if (r < 0)
- return r;
- count ++;
- }
- }
-
- if (!strv_isempty(patterns)) {
- _cleanup_set_free_free_ Set *units = NULL;
- Iterator it;
- char *u;
-
- r = get_possible_units(j, SYSTEM_UNITS, patterns, &units);
- if (r < 0)
- return r;
-
- SET_FOREACH(u, units, it) {
- r = add_matches_for_unit(j, u);
- if (r < 0)
- return r;
- r = sd_journal_add_disjunction(j);
- if (r < 0)
- return r;
- count ++;
- }
- }
-
- strv_free(patterns);
- patterns = NULL;
-
- STRV_FOREACH(i, arg_user_units) {
- _cleanup_free_ char *u = NULL;
-
- u = unit_name_mangle(*i, MANGLE_GLOB);
- if (!u)
- return log_oom();
-
- if (string_is_glob(u)) {
- r = strv_push(&patterns, u);
- if (r < 0)
- return r;
- u = NULL;
- } else {
- r = add_matches_for_user_unit(j, u, getuid());
- if (r < 0)
- return r;
- r = sd_journal_add_disjunction(j);
- if (r < 0)
- return r;
- count ++;
- }
- }
-
- if (!strv_isempty(patterns)) {
- _cleanup_set_free_free_ Set *units = NULL;
- Iterator it;
- char *u;
-
- r = get_possible_units(j, USER_UNITS, patterns, &units);
- if (r < 0)
- return r;
-
- SET_FOREACH(u, units, it) {
- r = add_matches_for_user_unit(j, u, getuid());
- if (r < 0)
- return r;
- r = sd_journal_add_disjunction(j);
- if (r < 0)
- return r;
- count ++;
- }
- }
-
- /* Complain if the user request matches but nothing whatsoever was
- * found, since otherwise everything would be matched. */
- if (!(strv_isempty(arg_system_units) && strv_isempty(arg_user_units)) && count == 0)
- return -ENODATA;
-
- r = sd_journal_add_conjunction(j);
- if (r < 0)
- return r;
-
- return 0;
-}
-
-static int add_priorities(sd_journal *j) {
- char match[] = "PRIORITY=0";
- int i, r;
- assert(j);
-
- if (arg_priorities == 0xFF)
- return 0;
-
- for (i = LOG_EMERG; i <= LOG_DEBUG; i++)
- if (arg_priorities & (1 << i)) {
- match[sizeof(match)-2] = '0' + i;
-
- r = sd_journal_add_match(j, match, strlen(match));
- if (r < 0)
- return log_error_errno(r, "Failed to add match: %m");
- }
-
- r = sd_journal_add_conjunction(j);
- if (r < 0)
- return r;
-
- return 0;
-}
-
-
-static int add_syslog_identifier(sd_journal *j) {
- int r;
- char **i;
-
- assert(j);
-
- STRV_FOREACH(i, arg_syslog_identifier) {
- char *u;
-
- u = strjoina("SYSLOG_IDENTIFIER=", *i);
- r = sd_journal_add_match(j, u, 0);
- if (r < 0)
- return r;
- r = sd_journal_add_disjunction(j);
- if (r < 0)
- return r;
- }
-
- r = sd_journal_add_conjunction(j);
- if (r < 0)
- return r;
-
- return 0;
-}
-
-static int setup_keys(void) {
-#ifdef HAVE_GCRYPT
- size_t mpk_size, seed_size, state_size, i;
- uint8_t *mpk, *seed, *state;
- int fd = -1, r;
- sd_id128_t machine, boot;
- char *p = NULL, *k = NULL;
- struct FSSHeader h;
- uint64_t n;
- struct stat st;
-
- r = stat("/var/log/journal", &st);
- if (r < 0 && errno != ENOENT && errno != ENOTDIR)
- return log_error_errno(errno, "stat(\"%s\") failed: %m", "/var/log/journal");
-
- if (r < 0 || !S_ISDIR(st.st_mode)) {
- log_error("%s is not a directory, must be using persistent logging for FSS.",
- "/var/log/journal");
- return r < 0 ? -errno : -ENOTDIR;
- }
-
- r = sd_id128_get_machine(&machine);
- if (r < 0)
- return log_error_errno(r, "Failed to get machine ID: %m");
-
- r = sd_id128_get_boot(&boot);
- if (r < 0)
- return log_error_errno(r, "Failed to get boot ID: %m");
-
- if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss",
- SD_ID128_FORMAT_VAL(machine)) < 0)
- return log_oom();
-
- if (arg_force) {
- r = unlink(p);
- if (r < 0 && errno != ENOENT) {
- r = log_error_errno(errno, "unlink(\"%s\") failed: %m", p);
- goto finish;
- }
- } else if (access(p, F_OK) >= 0) {
- log_error("Sealing key file %s exists already. Use --force to recreate.", p);
- r = -EEXIST;
- goto finish;
- }
-
- if (asprintf(&k, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss.tmp.XXXXXX",
- SD_ID128_FORMAT_VAL(machine)) < 0) {
- r = log_oom();
- goto finish;
- }
-
- mpk_size = FSPRG_mskinbytes(FSPRG_RECOMMENDED_SECPAR);
- mpk = alloca(mpk_size);
-
- seed_size = FSPRG_RECOMMENDED_SEEDLEN;
- seed = alloca(seed_size);
-
- state_size = FSPRG_stateinbytes(FSPRG_RECOMMENDED_SECPAR);
- state = alloca(state_size);
-
- fd = open("/dev/random", O_RDONLY|O_CLOEXEC|O_NOCTTY);
- if (fd < 0) {
- log_error_errno(errno, "Failed to open /dev/random: %m");
- r = -errno;
- goto finish;
- }
-
- log_info("Generating seed...");
- r = loop_read_exact(fd, seed, seed_size, true);
- if (r < 0) {
- log_error_errno(r, "Failed to read random seed: %m");
- goto finish;
- }
-
- log_info("Generating key pair...");
- FSPRG_GenMK(NULL, mpk, seed, seed_size, FSPRG_RECOMMENDED_SECPAR);
-
- log_info("Generating sealing key...");
- FSPRG_GenState0(state, mpk, seed, seed_size);
-
- assert(arg_interval > 0);
-
- n = now(CLOCK_REALTIME);
- n /= arg_interval;
-
- safe_close(fd);
- fd = mkostemp_safe(k, O_WRONLY|O_CLOEXEC);
- if (fd < 0) {
- log_error_errno(errno, "Failed to open %s: %m", k);
- r = -errno;
- goto finish;
- }
-
- /* Enable secure remove, exclusion from dump, synchronous
- * writing and in-place updating */
- r = chattr_fd(fd, true, FS_SECRM_FL|FS_NODUMP_FL|FS_SYNC_FL|FS_NOCOW_FL);
- if (r < 0)
- log_warning_errno(errno, "Failed to set file attributes: %m");
-
- zero(h);
- memcpy(h.signature, "KSHHRHLP", 8);
- h.machine_id = machine;
- h.boot_id = boot;
- h.header_size = htole64(sizeof(h));
- h.start_usec = htole64(n * arg_interval);
- h.interval_usec = htole64(arg_interval);
- h.fsprg_secpar = htole16(FSPRG_RECOMMENDED_SECPAR);
- h.fsprg_state_size = htole64(state_size);
-
- r = loop_write(fd, &h, sizeof(h), false);
- if (r < 0) {
- log_error_errno(r, "Failed to write header: %m");
- goto finish;
- }
-
- r = loop_write(fd, state, state_size, false);
- if (r < 0) {
- log_error_errno(r, "Failed to write state: %m");
- goto finish;
- }
-
- if (link(k, p) < 0) {
- log_error_errno(errno, "Failed to link file: %m");
- r = -errno;
- goto finish;
- }
-
- if (on_tty()) {
- fprintf(stderr,
- "\n"
- "The new key pair has been generated. The " ANSI_HIGHLIGHT_ON "secret sealing key" ANSI_HIGHLIGHT_OFF " has been written to\n"
- "the following local file. This key file is automatically updated when the\n"
- "sealing key is advanced. It should not be used on multiple hosts.\n"
- "\n"
- "\t%s\n"
- "\n"
- "Please write down the following " ANSI_HIGHLIGHT_ON "secret verification key" ANSI_HIGHLIGHT_OFF ". It should be stored\n"
- "at a safe location and should not be saved locally on disk.\n"
- "\n\t" ANSI_HIGHLIGHT_RED_ON, p);
- fflush(stderr);
- }
- for (i = 0; i < seed_size; i++) {
- if (i > 0 && i % 3 == 0)
- putchar('-');
- printf("%02x", ((uint8_t*) seed)[i]);
- }
-
- printf("/%llx-%llx\n", (unsigned long long) n, (unsigned long long) arg_interval);
-
- if (on_tty()) {
- char tsb[FORMAT_TIMESPAN_MAX], *hn;
-
- fprintf(stderr,
- ANSI_HIGHLIGHT_OFF "\n"
- "The sealing key is automatically changed every %s.\n",
- format_timespan(tsb, sizeof(tsb), arg_interval, 0));
-
- hn = gethostname_malloc();
-
- if (hn) {
- hostname_cleanup(hn, false);
- fprintf(stderr, "\nThe keys have been generated for host %s/" SD_ID128_FORMAT_STR ".\n", hn, SD_ID128_FORMAT_VAL(machine));
- } else
- fprintf(stderr, "\nThe keys have been generated for host " SD_ID128_FORMAT_STR ".\n", SD_ID128_FORMAT_VAL(machine));
-
-#ifdef HAVE_QRENCODE
- /* If this is not an UTF-8 system don't print any QR codes */
- if (is_locale_utf8()) {
- fputs("\nTo transfer the verification key to your phone please scan the QR code below:\n\n", stderr);
- print_qr_code(stderr, seed, seed_size, n, arg_interval, hn, machine);
- }
-#endif
- free(hn);
- }
-
- r = 0;
-
-finish:
- safe_close(fd);
-
- if (k) {
- unlink(k);
- free(k);
- }
-
- free(p);
-
- return r;
-#else
- log_error("Forward-secure sealing not available.");
- return -EOPNOTSUPP;
-#endif
-}
-
-static int verify(sd_journal *j) {
- int r = 0;
- Iterator i;
- JournalFile *f;
-
- assert(j);
-
- log_show_color(true);
-
- ORDERED_HASHMAP_FOREACH(f, j->files, i) {
- int k;
- usec_t first = 0, validated = 0, last = 0;
-
-#ifdef HAVE_GCRYPT
- if (!arg_verify_key && JOURNAL_HEADER_SEALED(f->header))
- log_notice("Journal file %s has sealing enabled but verification key has not been passed using --verify-key=.", f->path);
-#endif
-
- k = journal_file_verify(f, arg_verify_key, &first, &validated, &last, true);
- if (k == -EINVAL) {
- /* If the key was invalid give up right-away. */
- return k;
- } else if (k < 0) {
- log_warning("FAIL: %s (%s)", f->path, strerror(-k));
- r = k;
- } else {
- char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX], c[FORMAT_TIMESPAN_MAX];
- log_info("PASS: %s", f->path);
-
- if (arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) {
- if (validated > 0) {
- log_info("=> Validated from %s to %s, final %s entries not sealed.",
- format_timestamp_maybe_utc(a, sizeof(a), first),
- format_timestamp_maybe_utc(b, sizeof(b), validated),
- format_timespan(c, sizeof(c), last > validated ? last - validated : 0, 0));
- } else if (last > 0)
- log_info("=> No sealing yet, %s of entries not sealed.",
- format_timespan(c, sizeof(c), last - first, 0));
- else
- log_info("=> No sealing yet, no entries in file.");
- }
- }
- }
-
- return r;
-}
-
-#ifdef HAVE_ACL
-static int access_check_var_log_journal(sd_journal *j) {
- _cleanup_strv_free_ char **g = NULL;
- bool have_access;
- int r;
-
- assert(j);
-
- have_access = in_group("systemd-journal") > 0;
-
- if (!have_access) {
- const char* dir;
-
- if (access("/run/log/journal", F_OK) >= 0)
- dir = "/run/log/journal";
- else
- dir = "/var/log/journal";
-
- /* Let's enumerate all groups from the default ACL of
- * the directory, which generally should allow access
- * to most journal files too */
- r = search_acl_groups(&g, dir, &have_access);
- if (r < 0)
- return r;
- }
-
- if (!have_access) {
-
- if (strv_isempty(g))
- log_notice("Hint: You are currently not seeing messages from other users and the system.\n"
- " Users in the 'systemd-journal' group can see all messages. Pass -q to\n"
- " turn off this notice.");
- else {
- _cleanup_free_ char *s = NULL;
-
- r = strv_extend(&g, "systemd-journal");
- if (r < 0)
- return log_oom();
-
- strv_sort(g);
- strv_uniq(g);
-
- s = strv_join(g, "', '");
- if (!s)
- return log_oom();
-
- log_notice("Hint: You are currently not seeing messages from other users and the system.\n"
- " Users in groups '%s' can see all messages.\n"
- " Pass -q to turn off this notice.", s);
- }
- }
-
- return 0;
-}
-#endif
-
-static int access_check(sd_journal *j) {
- Iterator it;
- void *code;
- int r = 0;
-
- assert(j);
-
- if (set_isempty(j->errors)) {
- if (ordered_hashmap_isempty(j->files))
- log_notice("No journal files were found.");
- return 0;
- }
-
- if (set_contains(j->errors, INT_TO_PTR(-EACCES))) {
-#ifdef HAVE_ACL
- /* If /run/log/journal or /var/log/journal exist, try
- to pring a nice notice if the user lacks access to it. */
- if (!arg_quiet && geteuid() != 0) {
- r = access_check_var_log_journal(j);
- if (r < 0)
- return r;
- }
-#else
- if (geteuid() != 0 && in_group("systemd-journal") <= 0) {
- log_error("Unprivileged users cannot access messages. Users in the 'systemd-journal' group\n"
- "group may access messages.");
- return -EACCES;
- }
-#endif
-
- if (ordered_hashmap_isempty(j->files)) {
- log_error("No journal files were opened due to insufficient permissions.");
- r = -EACCES;
- }
- }
-
- SET_FOREACH(code, j->errors, it) {
- int err;
-
- err = -PTR_TO_INT(code);
- assert(err > 0);
-
- if (err != EACCES)
- log_warning_errno(err, "Error was encountered while opening journal files: %m");
- }
-
- return r;
-}
-
-static int flush_to_var(void) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_bus_close_unref_ sd_bus *bus = NULL;
- _cleanup_close_ int watch_fd = -1;
- int r;
-
- /* Quick exit */
- if (access("/run/systemd/journal/flushed", F_OK) >= 0)
- return 0;
-
- /* OK, let's actually do the full logic, send SIGUSR1 to the
- * daemon and set up inotify to wait for the flushed file to appear */
- r = bus_open_system_systemd(&bus);
- if (r < 0)
- return log_error_errno(r, "Failed to get D-Bus connection: %m");
-
- r = sd_bus_call_method(
- bus,
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "KillUnit",
- &error,
- NULL,
- "ssi", "systemd-journald.service", "main", SIGUSR1);
- if (r < 0) {
- log_error("Failed to kill journal service: %s", bus_error_message(&error, r));
- return r;
- }
-
- mkdir_p("/run/systemd/journal", 0755);
-
- watch_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC);
- if (watch_fd < 0)
- return log_error_errno(errno, "Failed to create inotify watch: %m");
-
- r = inotify_add_watch(watch_fd, "/run/systemd/journal", IN_CREATE|IN_DONT_FOLLOW|IN_ONLYDIR);
- if (r < 0)
- return log_error_errno(errno, "Failed to watch journal directory: %m");
-
- for (;;) {
- if (access("/run/systemd/journal/flushed", F_OK) >= 0)
- break;
-
- if (errno != ENOENT)
- return log_error_errno(errno, "Failed to check for existence of /run/systemd/journal/flushed: %m");
-
- r = fd_wait_for_event(watch_fd, POLLIN, USEC_INFINITY);
- if (r < 0)
- return log_error_errno(r, "Failed to wait for event: %m");
-
- r = flush_fd(watch_fd);
- if (r < 0)
- return log_error_errno(r, "Failed to flush inotify events: %m");
- }
-
- return 0;
-}
-
-int main(int argc, char *argv[]) {
- int r;
- _cleanup_journal_close_ sd_journal *j = NULL;
- bool need_seek = false;
- sd_id128_t previous_boot_id;
- bool previous_boot_id_valid = false, first_line = true;
- int n_shown = 0;
- bool ellipsized = false;
-
- setlocale(LC_ALL, "");
- log_parse_environment();
- log_open();
-
- r = parse_argv(argc, argv);
- if (r <= 0)
- goto finish;
-
- signal(SIGWINCH, columns_lines_cache_reset);
- sigbus_install();
-
- /* Increase max number of open files to 16K if we can, we
- * might needs this when browsing journal files, which might
- * be split up into many files. */
- setrlimit_closest(RLIMIT_NOFILE, &RLIMIT_MAKE_CONST(16384));
-
- if (arg_action == ACTION_NEW_ID128) {
- r = generate_new_id128();
- goto finish;
- }
-
- if (arg_action == ACTION_FLUSH) {
- r = flush_to_var();
- goto finish;
- }
-
- if (arg_action == ACTION_SETUP_KEYS) {
- r = setup_keys();
- goto finish;
- }
-
- if (arg_action == ACTION_UPDATE_CATALOG ||
- arg_action == ACTION_LIST_CATALOG ||
- arg_action == ACTION_DUMP_CATALOG) {
-
- _cleanup_free_ char *database;
-
- database = path_join(arg_root, CATALOG_DATABASE, NULL);
- if (!database) {
- r = log_oom();
- goto finish;
- }
-
- if (arg_action == ACTION_UPDATE_CATALOG) {
- r = catalog_update(database, arg_root, catalog_file_dirs);
- if (r < 0)
- log_error_errno(r, "Failed to list catalog: %m");
- } else {
- bool oneline = arg_action == ACTION_LIST_CATALOG;
-
- if (optind < argc)
- r = catalog_list_items(stdout, database,
- oneline, argv + optind);
- else
- r = catalog_list(stdout, database, oneline);
- if (r < 0)
- log_error_errno(r, "Failed to list catalog: %m");
- }
-
- goto finish;
- }
-
- if (arg_directory)
- r = sd_journal_open_directory(&j, arg_directory, arg_journal_type);
- else if (arg_file)
- r = sd_journal_open_files(&j, (const char**) arg_file, 0);
- else if (arg_machine)
- r = sd_journal_open_container(&j, arg_machine, 0);
- else
- r = sd_journal_open(&j, !arg_merge*SD_JOURNAL_LOCAL_ONLY + arg_journal_type);
- if (r < 0) {
- log_error_errno(r, "Failed to open %s: %m",
- arg_directory ? arg_directory : arg_file ? "files" : "journal");
- return EXIT_FAILURE;
- }
-
- r = access_check(j);
- if (r < 0)
- return EXIT_FAILURE;
-
- if (arg_action == ACTION_VERIFY) {
- r = verify(j);
- goto finish;
- }
-
- if (arg_action == ACTION_PRINT_HEADER) {
- journal_print_header(j);
- return EXIT_SUCCESS;
- }
-
- if (arg_action == ACTION_DISK_USAGE) {
- uint64_t bytes = 0;
- char sbytes[FORMAT_BYTES_MAX];
-
- r = sd_journal_get_usage(j, &bytes);
- if (r < 0)
- return EXIT_FAILURE;
-
- printf("Archived and active journals take up %s on disk.\n",
- format_bytes(sbytes, sizeof(sbytes), bytes));
- return EXIT_SUCCESS;
- }
-
- if (arg_action == ACTION_VACUUM) {
- Directory *d;
- Iterator i;
-
- HASHMAP_FOREACH(d, j->directories_by_path, i) {
- int q;
-
- if (d->is_root)
- continue;
-
- q = journal_directory_vacuum(d->path, arg_vacuum_size, arg_vacuum_time, NULL, true);
- if (q < 0) {
- log_error_errno(q, "Failed to vacuum: %m");
- r = q;
- }
- }
-
- return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
- }
-
- if (arg_action == ACTION_LIST_BOOTS) {
- r = list_boots(j);
- goto finish;
- }
-
- /* add_boot() must be called first!
- * It may need to seek the journal to find parent boot IDs. */
- r = add_boot(j);
- if (r < 0)
- return EXIT_FAILURE;
-
- r = add_dmesg(j);
- if (r < 0)
- return EXIT_FAILURE;
-
- r = add_units(j);
- strv_free(arg_system_units);
- strv_free(arg_user_units);
-
- if (r < 0) {
- log_error_errno(r, "Failed to add filter for units: %m");
- return EXIT_FAILURE;
- }
-
- r = add_syslog_identifier(j);
- if (r < 0) {
- log_error_errno(r, "Failed to add filter for syslog identifiers: %m");
- return EXIT_FAILURE;
- }
-
- r = add_priorities(j);
- if (r < 0) {
- log_error_errno(r, "Failed to add filter for priorities: %m");
- return EXIT_FAILURE;
- }
-
- r = add_matches(j, argv + optind);
- if (r < 0) {
- log_error_errno(r, "Failed to add filters: %m");
- return EXIT_FAILURE;
- }
-
- if (_unlikely_(log_get_max_level() >= LOG_DEBUG)) {
- _cleanup_free_ char *filter;
-
- filter = journal_make_match_string(j);
- log_debug("Journal filter: %s", filter);
- }
-
- if (arg_field) {
- const void *data;
- size_t size;
-
- r = sd_journal_set_data_threshold(j, 0);
- if (r < 0) {
- log_error("Failed to unset data size threshold");
- return EXIT_FAILURE;
- }
-
- r = sd_journal_query_unique(j, arg_field);
- if (r < 0) {
- log_error_errno(r, "Failed to query unique data objects: %m");
- return EXIT_FAILURE;
- }
-
- SD_JOURNAL_FOREACH_UNIQUE(j, data, size) {
- const void *eq;
-
- if (arg_lines >= 0 && n_shown >= arg_lines)
- break;
-
- eq = memchr(data, '=', size);
- if (eq)
- printf("%.*s\n", (int) (size - ((const uint8_t*) eq - (const uint8_t*) data + 1)), (const char*) eq + 1);
- else
- printf("%.*s\n", (int) size, (const char*) data);
-
- n_shown ++;
- }
-
- return EXIT_SUCCESS;
- }
-
- /* Opening the fd now means the first sd_journal_wait() will actually wait */
- if (arg_follow) {
- r = sd_journal_get_fd(j);
- if (r < 0)
- return EXIT_FAILURE;
- }
-
- if (arg_cursor || arg_after_cursor) {
- r = sd_journal_seek_cursor(j, arg_cursor ?: arg_after_cursor);
- if (r < 0) {
- log_error_errno(r, "Failed to seek to cursor: %m");
- return EXIT_FAILURE;
- }
- if (!arg_reverse)
- r = sd_journal_next_skip(j, 1 + !!arg_after_cursor);
- else
- r = sd_journal_previous_skip(j, 1 + !!arg_after_cursor);
-
- if (arg_after_cursor && r < 2) {
- /* We couldn't find the next entry after the cursor. */
- if (arg_follow)
- need_seek = true;
- else
- arg_lines = 0;
- }
-
- } else if (arg_since_set && !arg_reverse) {
- r = sd_journal_seek_realtime_usec(j, arg_since);
- if (r < 0) {
- log_error_errno(r, "Failed to seek to date: %m");
- return EXIT_FAILURE;
- }
- r = sd_journal_next(j);
-
- } else if (arg_until_set && arg_reverse) {
- r = sd_journal_seek_realtime_usec(j, arg_until);
- if (r < 0) {
- log_error_errno(r, "Failed to seek to date: %m");
- return EXIT_FAILURE;
- }
- r = sd_journal_previous(j);
-
- } else if (arg_lines >= 0) {
- r = sd_journal_seek_tail(j);
- if (r < 0) {
- log_error_errno(r, "Failed to seek to tail: %m");
- return EXIT_FAILURE;
- }
-
- r = sd_journal_previous_skip(j, arg_lines);
-
- } else if (arg_reverse) {
- r = sd_journal_seek_tail(j);
- if (r < 0) {
- log_error_errno(r, "Failed to seek to tail: %m");
- return EXIT_FAILURE;
- }
-
- r = sd_journal_previous(j);
-
- } else {
- r = sd_journal_seek_head(j);
- if (r < 0) {
- log_error_errno(r, "Failed to seek to head: %m");
- return EXIT_FAILURE;
- }
-
- r = sd_journal_next(j);
- }
-
- if (r < 0) {
- log_error_errno(r, "Failed to iterate through journal: %m");
- return EXIT_FAILURE;
- }
-
- if (!arg_follow)
- pager_open_if_enabled();
-
- if (!arg_quiet) {
- usec_t start, end;
- char start_buf[FORMAT_TIMESTAMP_MAX], end_buf[FORMAT_TIMESTAMP_MAX];
-
- r = sd_journal_get_cutoff_realtime_usec(j, &start, &end);
- if (r < 0) {
- log_error_errno(r, "Failed to get cutoff: %m");
- goto finish;
- }
-
- if (r > 0) {
- if (arg_follow)
- printf("-- Logs begin at %s. --\n",
- format_timestamp_maybe_utc(start_buf, sizeof(start_buf), start));
- else
- printf("-- Logs begin at %s, end at %s. --\n",
- format_timestamp_maybe_utc(start_buf, sizeof(start_buf), start),
- format_timestamp_maybe_utc(end_buf, sizeof(end_buf), end));
- }
- }
-
- for (;;) {
- while (arg_lines < 0 || n_shown < arg_lines || (arg_follow && !first_line)) {
- int flags;
-
- if (need_seek) {
- if (!arg_reverse)
- r = sd_journal_next(j);
- else
- r = sd_journal_previous(j);
- if (r < 0) {
- log_error_errno(r, "Failed to iterate through journal: %m");
- goto finish;
- }
- if (r == 0)
- break;
- }
-
- if (arg_until_set && !arg_reverse) {
- usec_t usec;
-
- r = sd_journal_get_realtime_usec(j, &usec);
- if (r < 0) {
- log_error_errno(r, "Failed to determine timestamp: %m");
- goto finish;
- }
- if (usec > arg_until)
- goto finish;
- }
-
- if (arg_since_set && arg_reverse) {
- usec_t usec;
-
- r = sd_journal_get_realtime_usec(j, &usec);
- if (r < 0) {
- log_error_errno(r, "Failed to determine timestamp: %m");
- goto finish;
- }
- if (usec < arg_since)
- goto finish;
- }
-
- if (!arg_merge && !arg_quiet) {
- sd_id128_t boot_id;
-
- r = sd_journal_get_monotonic_usec(j, NULL, &boot_id);
- if (r >= 0) {
- if (previous_boot_id_valid &&
- !sd_id128_equal(boot_id, previous_boot_id))
- printf("%s-- Reboot --%s\n",
- ansi_highlight(), ansi_highlight_off());
-
- previous_boot_id = boot_id;
- previous_boot_id_valid = true;
- }
- }
-
- flags =
- arg_all * OUTPUT_SHOW_ALL |
- arg_full * OUTPUT_FULL_WIDTH |
- on_tty() * OUTPUT_COLOR |
- arg_catalog * OUTPUT_CATALOG |
- arg_utc * OUTPUT_UTC;
-
- r = output_journal(stdout, j, arg_output, 0, flags, &ellipsized);
- need_seek = true;
- if (r == -EADDRNOTAVAIL)
- break;
- else if (r < 0 || ferror(stdout))
- goto finish;
-
- n_shown++;
- }
-
- if (!arg_follow) {
- if (arg_show_cursor) {
- _cleanup_free_ char *cursor = NULL;
-
- r = sd_journal_get_cursor(j, &cursor);
- if (r < 0 && r != -EADDRNOTAVAIL)
- log_error_errno(r, "Failed to get cursor: %m");
- else if (r >= 0)
- printf("-- cursor: %s\n", cursor);
- }
-
- break;
- }
-
- r = sd_journal_wait(j, (uint64_t) -1);
- if (r < 0) {
- log_error_errno(r, "Couldn't wait for journal event: %m");
- goto finish;
- }
-
- first_line = false;
- }
-
-finish:
- pager_close();
-
- strv_free(arg_file);
-
- return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
-}
~ianmdlvl / elogind.git / blobdiff