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0b6b7c2004
Positional arguments only make sense with the default action. For other actions, complain instead of ignoring them silently.
1943 lines
69 KiB
C
1943 lines
69 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2011 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <locale.h>
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#include <fcntl.h>
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#include <fnmatch.h>
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#include <errno.h>
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#include <stddef.h>
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#include <string.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <time.h>
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#include <getopt.h>
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#include <signal.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <linux/fs.h>
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#ifdef HAVE_ACL
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#include <sys/acl.h>
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#include "acl-util.h"
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#endif
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#include <systemd/sd-journal.h>
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#include "log.h"
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#include "logs-show.h"
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#include "util.h"
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#include "path-util.h"
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#include "fileio.h"
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#include "build.h"
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#include "pager.h"
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#include "strv.h"
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#include "set.h"
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#include "journal-internal.h"
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#include "journal-def.h"
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#include "journal-verify.h"
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#include "journal-authenticate.h"
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#include "journal-qrcode.h"
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#include "fsprg.h"
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#include "unit-name.h"
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#include "catalog.h"
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#define DEFAULT_FSS_INTERVAL_USEC (15*USEC_PER_MINUTE)
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static OutputMode arg_output = OUTPUT_SHORT;
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static bool arg_pager_end = false;
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static bool arg_follow = false;
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static bool arg_full = true;
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static bool arg_all = false;
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static bool arg_no_pager = false;
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static int arg_lines = -1;
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static bool arg_no_tail = false;
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static bool arg_quiet = false;
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static bool arg_merge = false;
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static bool arg_boot = false;
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static sd_id128_t arg_boot_id = {};
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static int arg_boot_offset = 0;
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static bool arg_dmesg = false;
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static const char *arg_cursor = NULL;
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static const char *arg_after_cursor = NULL;
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static bool arg_show_cursor = false;
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static const char *arg_directory = NULL;
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static char **arg_file = NULL;
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static int arg_priorities = 0xFF;
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static const char *arg_verify_key = NULL;
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#ifdef HAVE_GCRYPT
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static usec_t arg_interval = DEFAULT_FSS_INTERVAL_USEC;
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static bool arg_force = false;
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#endif
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static usec_t arg_since, arg_until;
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static bool arg_since_set = false, arg_until_set = false;
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static char **arg_system_units = NULL;
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static char **arg_user_units = NULL;
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static const char *arg_field = NULL;
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static bool arg_catalog = false;
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static bool arg_reverse = false;
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static int arg_journal_type = 0;
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static const char *arg_root = NULL;
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static const char *arg_machine = NULL;
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static enum {
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ACTION_SHOW,
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ACTION_NEW_ID128,
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ACTION_PRINT_HEADER,
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ACTION_SETUP_KEYS,
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ACTION_VERIFY,
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ACTION_DISK_USAGE,
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ACTION_LIST_CATALOG,
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ACTION_DUMP_CATALOG,
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ACTION_UPDATE_CATALOG,
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ACTION_LIST_BOOTS,
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} arg_action = ACTION_SHOW;
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typedef struct boot_id_t {
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sd_id128_t id;
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uint64_t first;
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uint64_t last;
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} boot_id_t;
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static void pager_open_if_enabled(void) {
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if (arg_no_pager)
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return;
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pager_open(arg_pager_end);
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}
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static int parse_boot_descriptor(const char *x, sd_id128_t *boot_id, int *offset) {
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sd_id128_t id = SD_ID128_NULL;
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int off = 0, r;
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if (strlen(x) >= 32) {
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char *t;
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t = strndupa(x, 32);
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r = sd_id128_from_string(t, &id);
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if (r >= 0)
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x += 32;
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if (*x != '-' && *x != '+' && *x != 0)
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return -EINVAL;
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if (*x != 0) {
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r = safe_atoi(x, &off);
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if (r < 0)
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return r;
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}
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} else {
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r = safe_atoi(x, &off);
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if (r < 0)
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return r;
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}
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if (boot_id)
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*boot_id = id;
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if (offset)
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*offset = off;
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return 0;
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}
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static int help(void) {
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pager_open_if_enabled();
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printf("%s [OPTIONS...] [MATCHES...]\n\n"
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"Query the journal.\n\n"
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"Flags:\n"
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" --system Show only the system journal\n"
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" --user Show only the user journal for the current user\n"
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" -M --machine=CONTAINER Operate on local container\n"
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" --since=DATE Start showing entries on or newer than the specified date\n"
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" --until=DATE Stop showing entries on or older than the specified date\n"
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" -c --cursor=CURSOR Start showing entries from the specified cursor\n"
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" --after-cursor=CURSOR Start showing entries from after the specified cursor\n"
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" --show-cursor Print the cursor after all the entries\n"
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" -b --boot[=ID] Show data only from ID or, if unspecified, the current boot\n"
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" --list-boots Show terse information about recorded boots\n"
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" -k --dmesg Show kernel message log from the current boot\n"
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" -u --unit=UNIT Show data only from the specified unit\n"
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" --user-unit=UNIT Show data only from the specified user session unit\n"
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" -p --priority=RANGE Show only messages within the specified priority range\n"
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" -e --pager-end Immediately jump to end of the journal in the pager\n"
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" -f --follow Follow the journal\n"
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" -n --lines[=INTEGER] Number of journal entries to show\n"
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" --no-tail Show all lines, even in follow mode\n"
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" -r --reverse Show the newest entries first\n"
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" -o --output=STRING Change journal output mode (short, short-iso,\n"
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" short-precise, short-monotonic, verbose,\n"
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" export, json, json-pretty, json-sse, cat)\n"
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" -x --catalog Add message explanations where available\n"
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" --no-full Ellipsize fields\n"
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" -a --all Show all fields, including long and unprintable\n"
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" -q --quiet Do not show privilege warning\n"
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" --no-pager Do not pipe output into a pager\n"
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" -m --merge Show entries from all available journals\n"
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" -D --directory=PATH Show journal files from directory\n"
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" --file=PATH Show journal file\n"
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" --root=ROOT Operate on catalog files underneath the root ROOT\n"
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#ifdef HAVE_GCRYPT
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" --interval=TIME Time interval for changing the FSS sealing key\n"
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" --verify-key=KEY Specify FSS verification key\n"
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" --force Force overriding of the FSS key pair with --setup-keys\n"
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#endif
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"\nCommands:\n"
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" -h --help Show this help text\n"
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" --version Show package version\n"
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" --new-id128 Generate a new 128-bit ID\n"
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" --header Show journal header information\n"
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" --disk-usage Show total disk usage of all journal files\n"
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" -F --field=FIELD List all values that a specified field takes\n"
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" --list-catalog Show message IDs of all entries in the message catalog\n"
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" --dump-catalog Show entries in the message catalog\n"
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" --update-catalog Update the message catalog database\n"
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#ifdef HAVE_GCRYPT
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" --setup-keys Generate a new FSS key pair\n"
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" --verify Verify journal file consistency\n"
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#endif
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, program_invocation_short_name);
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return 0;
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}
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static int parse_argv(int argc, char *argv[]) {
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enum {
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ARG_VERSION = 0x100,
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ARG_NO_PAGER,
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ARG_NO_FULL,
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ARG_NO_TAIL,
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ARG_NEW_ID128,
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ARG_LIST_BOOTS,
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ARG_USER,
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ARG_SYSTEM,
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ARG_ROOT,
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ARG_HEADER,
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ARG_SETUP_KEYS,
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ARG_FILE,
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ARG_INTERVAL,
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ARG_VERIFY,
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ARG_VERIFY_KEY,
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ARG_DISK_USAGE,
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ARG_SINCE,
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ARG_UNTIL,
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ARG_AFTER_CURSOR,
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ARG_SHOW_CURSOR,
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ARG_USER_UNIT,
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ARG_LIST_CATALOG,
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ARG_DUMP_CATALOG,
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ARG_UPDATE_CATALOG,
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ARG_FORCE,
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};
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static const struct option options[] = {
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{ "help", no_argument, NULL, 'h' },
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{ "version" , no_argument, NULL, ARG_VERSION },
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{ "no-pager", no_argument, NULL, ARG_NO_PAGER },
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{ "pager-end", no_argument, NULL, 'e' },
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{ "follow", no_argument, NULL, 'f' },
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{ "force", no_argument, NULL, ARG_FORCE },
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{ "output", required_argument, NULL, 'o' },
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{ "all", no_argument, NULL, 'a' },
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{ "full", no_argument, NULL, 'l' },
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{ "no-full", no_argument, NULL, ARG_NO_FULL },
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{ "lines", optional_argument, NULL, 'n' },
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{ "no-tail", no_argument, NULL, ARG_NO_TAIL },
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{ "new-id128", no_argument, NULL, ARG_NEW_ID128 },
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{ "quiet", no_argument, NULL, 'q' },
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{ "merge", no_argument, NULL, 'm' },
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{ "boot", optional_argument, NULL, 'b' },
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{ "list-boots", no_argument, NULL, ARG_LIST_BOOTS },
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{ "this-boot", optional_argument, NULL, 'b' }, /* deprecated */
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{ "dmesg", no_argument, NULL, 'k' },
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{ "system", no_argument, NULL, ARG_SYSTEM },
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{ "user", no_argument, NULL, ARG_USER },
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{ "directory", required_argument, NULL, 'D' },
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{ "file", required_argument, NULL, ARG_FILE },
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{ "root", required_argument, NULL, ARG_ROOT },
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{ "header", no_argument, NULL, ARG_HEADER },
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{ "priority", required_argument, NULL, 'p' },
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{ "setup-keys", no_argument, NULL, ARG_SETUP_KEYS },
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{ "interval", required_argument, NULL, ARG_INTERVAL },
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{ "verify", no_argument, NULL, ARG_VERIFY },
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{ "verify-key", required_argument, NULL, ARG_VERIFY_KEY },
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{ "disk-usage", no_argument, NULL, ARG_DISK_USAGE },
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{ "cursor", required_argument, NULL, 'c' },
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{ "after-cursor", required_argument, NULL, ARG_AFTER_CURSOR },
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{ "show-cursor", no_argument, NULL, ARG_SHOW_CURSOR },
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{ "since", required_argument, NULL, ARG_SINCE },
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{ "until", required_argument, NULL, ARG_UNTIL },
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{ "unit", required_argument, NULL, 'u' },
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{ "user-unit", required_argument, NULL, ARG_USER_UNIT },
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{ "field", required_argument, NULL, 'F' },
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{ "catalog", no_argument, NULL, 'x' },
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{ "list-catalog", no_argument, NULL, ARG_LIST_CATALOG },
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{ "dump-catalog", no_argument, NULL, ARG_DUMP_CATALOG },
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{ "update-catalog", no_argument, NULL, ARG_UPDATE_CATALOG },
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{ "reverse", no_argument, NULL, 'r' },
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{ "machine", required_argument, NULL, 'M' },
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{}
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};
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int c, r;
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assert(argc >= 0);
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assert(argv);
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while ((c = getopt_long(argc, argv, "hefo:aln::qmb::kD:p:c:u:F:xrM:", options, NULL)) >= 0) {
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switch (c) {
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case 'h':
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return help();
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case ARG_VERSION:
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puts(PACKAGE_STRING);
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puts(SYSTEMD_FEATURES);
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return 0;
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case ARG_NO_PAGER:
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arg_no_pager = true;
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break;
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case 'e':
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arg_pager_end = true;
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if (arg_lines < 0)
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arg_lines = 1000;
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break;
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case 'f':
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arg_follow = true;
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break;
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case 'o':
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arg_output = output_mode_from_string(optarg);
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if (arg_output < 0) {
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log_error("Unknown output format '%s'.", optarg);
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return -EINVAL;
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}
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if (arg_output == OUTPUT_EXPORT ||
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arg_output == OUTPUT_JSON ||
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arg_output == OUTPUT_JSON_PRETTY ||
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arg_output == OUTPUT_JSON_SSE ||
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arg_output == OUTPUT_CAT)
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arg_quiet = true;
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break;
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case 'l':
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arg_full = true;
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break;
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case ARG_NO_FULL:
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arg_full = false;
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break;
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case 'a':
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arg_all = true;
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break;
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case 'n':
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if (optarg) {
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r = safe_atoi(optarg, &arg_lines);
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if (r < 0 || arg_lines < 0) {
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log_error("Failed to parse lines '%s'", optarg);
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return -EINVAL;
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}
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} else {
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int n;
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/* Hmm, no argument? Maybe the next
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* word on the command line is
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* supposed to be the argument? Let's
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* see if there is one, and is
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* parsable as a positive
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* integer... */
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if (optind < argc &&
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safe_atoi(argv[optind], &n) >= 0 &&
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n >= 0) {
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arg_lines = n;
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optind++;
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} else
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arg_lines = 10;
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}
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break;
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case ARG_NO_TAIL:
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arg_no_tail = true;
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break;
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case ARG_NEW_ID128:
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arg_action = ACTION_NEW_ID128;
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break;
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case 'q':
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arg_quiet = true;
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break;
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case 'm':
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arg_merge = true;
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break;
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case 'b':
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arg_boot = true;
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if (optarg) {
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r = parse_boot_descriptor(optarg, &arg_boot_id, &arg_boot_offset);
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if (r < 0) {
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log_error("Failed to parse boot descriptor '%s'", optarg);
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return -EINVAL;
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}
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} else {
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/* Hmm, no argument? Maybe the next
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* word on the command line is
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* supposed to be the argument? Let's
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* see if there is one and is parsable
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* as a boot descriptor... */
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if (optind < argc &&
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parse_boot_descriptor(argv[optind], &arg_boot_id, &arg_boot_offset) >= 0)
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optind++;
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}
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break;
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case ARG_LIST_BOOTS:
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arg_action = ACTION_LIST_BOOTS;
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break;
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case 'k':
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arg_boot = arg_dmesg = true;
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break;
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case ARG_SYSTEM:
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arg_journal_type |= SD_JOURNAL_SYSTEM;
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break;
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case ARG_USER:
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arg_journal_type |= SD_JOURNAL_CURRENT_USER;
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break;
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case 'M':
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arg_machine = optarg;
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break;
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case 'D':
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arg_directory = optarg;
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break;
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case ARG_FILE:
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r = glob_extend(&arg_file, optarg);
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if (r < 0) {
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log_error("Failed to add paths: %s", strerror(-r));
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return r;
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};
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break;
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case ARG_ROOT:
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arg_root = optarg;
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break;
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case 'c':
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arg_cursor = optarg;
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break;
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case ARG_AFTER_CURSOR:
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arg_after_cursor = optarg;
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break;
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case ARG_SHOW_CURSOR:
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arg_show_cursor = true;
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break;
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case ARG_HEADER:
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arg_action = ACTION_PRINT_HEADER;
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break;
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case ARG_VERIFY:
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arg_action = ACTION_VERIFY;
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break;
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case ARG_DISK_USAGE:
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arg_action = ACTION_DISK_USAGE;
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break;
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#ifdef HAVE_GCRYPT
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case ARG_FORCE:
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arg_force = true;
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break;
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case ARG_SETUP_KEYS:
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arg_action = ACTION_SETUP_KEYS;
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break;
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case ARG_VERIFY_KEY:
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arg_action = ACTION_VERIFY;
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arg_verify_key = optarg;
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arg_merge = false;
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break;
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case ARG_INTERVAL:
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r = parse_sec(optarg, &arg_interval);
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if (r < 0 || arg_interval <= 0) {
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log_error("Failed to parse sealing key change interval: %s", optarg);
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return -EINVAL;
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}
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break;
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#else
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case ARG_SETUP_KEYS:
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case ARG_VERIFY_KEY:
|
|
case ARG_INTERVAL:
|
|
case ARG_FORCE:
|
|
log_error("Forward-secure sealing not available.");
|
|
return -ENOTSUP;
|
|
#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 '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 '?':
|
|
return -EINVAL;
|
|
|
|
default:
|
|
assert_not_reached("Unhandled option");
|
|
}
|
|
}
|
|
|
|
if (arg_follow && !arg_no_tail && arg_lines < 0)
|
|
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) {
|
|
log_error("Failed to generate ID: %s", strerror(-r));
|
|
return r;
|
|
}
|
|
|
|
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;
|
|
|
|
assert(j);
|
|
|
|
STRV_FOREACH(i, args) {
|
|
int r;
|
|
|
|
if (streq(*i, "+"))
|
|
r = sd_journal_add_disjunction(j);
|
|
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) {
|
|
log_error("Couldn't stat file: %m");
|
|
return -errno;
|
|
}
|
|
|
|
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))
|
|
asprintf(&t, "_KERNEL_DEVICE=c%u:%u", major(st.st_rdev), minor(st.st_rdev));
|
|
else if (S_ISBLK(st.st_mode))
|
|
asprintf(&t, "_KERNEL_DEVICE=b%u:%u", major(st.st_rdev), minor(st.st_rdev));
|
|
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);
|
|
} else
|
|
r = sd_journal_add_match(j, *i, 0);
|
|
|
|
if (r < 0) {
|
|
log_error("Failed to add match '%s': %s", *i, strerror(-r));
|
|
return r;
|
|
}
|
|
}
|
|
|
|
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 list_boots(sd_journal *j) {
|
|
int r;
|
|
const void *data;
|
|
unsigned int count = 0;
|
|
int w, i;
|
|
size_t length, allocated = 0;
|
|
boot_id_t *id;
|
|
_cleanup_free_ boot_id_t *all_ids = NULL;
|
|
|
|
r = sd_journal_query_unique(j, "_BOOT_ID");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
SD_JOURNAL_FOREACH_UNIQUE(j, data, length) {
|
|
if (length < strlen("_BOOT_ID="))
|
|
continue;
|
|
|
|
if (!GREEDY_REALLOC(all_ids, allocated, count + 1))
|
|
return log_oom();
|
|
|
|
id = &all_ids[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;
|
|
|
|
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(all_ids, count, sizeof(boot_id_t), boot_id_cmp);
|
|
|
|
/* 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(a, sizeof(a), id->first),
|
|
format_timestamp(b, sizeof(b), id->last));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int get_relative_boot_id(sd_journal *j, sd_id128_t *boot_id, int relative) {
|
|
int r;
|
|
const void *data;
|
|
unsigned int count = 0;
|
|
size_t length, allocated = 0;
|
|
boot_id_t ref_boot_id = {SD_ID128_NULL}, *id;
|
|
_cleanup_free_ boot_id_t *all_ids = NULL;
|
|
|
|
assert(j);
|
|
assert(boot_id);
|
|
|
|
r = sd_journal_query_unique(j, "_BOOT_ID");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
SD_JOURNAL_FOREACH_UNIQUE(j, data, length) {
|
|
if (length < strlen("_BOOT_ID="))
|
|
continue;
|
|
|
|
if (!GREEDY_REALLOC(all_ids, allocated, count + 1))
|
|
return log_oom();
|
|
|
|
id = &all_ids[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 (sd_id128_equal(id->id, *boot_id))
|
|
ref_boot_id = *id;
|
|
|
|
count++;
|
|
flush:
|
|
sd_journal_flush_matches(j);
|
|
}
|
|
|
|
qsort_safe(all_ids, count, sizeof(boot_id_t), boot_id_cmp);
|
|
|
|
if (sd_id128_equal(*boot_id, SD_ID128_NULL)) {
|
|
if (relative > (int) count || relative <= -(int)count)
|
|
return -EADDRNOTAVAIL;
|
|
|
|
*boot_id = all_ids[(relative <= 0)*count + relative - 1].id;
|
|
} else {
|
|
id = bsearch(&ref_boot_id, all_ids, count, sizeof(boot_id_t), boot_id_cmp);
|
|
|
|
if (!id ||
|
|
relative <= 0 ? (id - all_ids) + relative < 0 :
|
|
(id - all_ids) + relative >= (int) count)
|
|
return -EADDRNOTAVAIL;
|
|
|
|
*boot_id = (id + relative)->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_relative_boot_id(j, &arg_boot_id, arg_boot_offset);
|
|
if (r < 0) {
|
|
if (sd_id128_equal(arg_boot_id, SD_ID128_NULL))
|
|
log_error("Failed to look up boot %+i: %s", arg_boot_offset, strerror(-r));
|
|
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) {
|
|
log_error("Failed to add match: %s", strerror(-r));
|
|
return r;
|
|
}
|
|
|
|
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) {
|
|
log_error("Failed to add match: %s", strerror(-r));
|
|
return r;
|
|
}
|
|
|
|
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_func, string_compare_func);
|
|
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) {
|
|
log_error("Failed to add match: %s", strerror(-r));
|
|
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;
|
|
ssize_t l;
|
|
int fd = -1, r, attr = 0;
|
|
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) {
|
|
log_error("stat(\"%s\") failed: %m", "/var/log/journal");
|
|
return -errno;
|
|
}
|
|
|
|
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) {
|
|
log_error("Failed to get machine ID: %s", strerror(-r));
|
|
return r;
|
|
}
|
|
|
|
r = sd_id128_get_boot(&boot);
|
|
if (r < 0) {
|
|
log_error("Failed to get boot ID: %s", strerror(-r));
|
|
return r;
|
|
}
|
|
|
|
if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss",
|
|
SD_ID128_FORMAT_VAL(machine)) < 0)
|
|
return log_oom();
|
|
|
|
if (access(p, F_OK) >= 0) {
|
|
if (arg_force) {
|
|
r = unlink(p);
|
|
if (r < 0) {
|
|
log_error("unlink(\"%s\") failed: %m", p);
|
|
r = -errno;
|
|
goto finish;
|
|
}
|
|
} else {
|
|
log_error("Sealing key file %s exists already. (--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("Failed to open /dev/random: %m");
|
|
r = -errno;
|
|
goto finish;
|
|
}
|
|
|
|
log_info("Generating seed...");
|
|
l = loop_read(fd, seed, seed_size, true);
|
|
if (l < 0 || (size_t) l != seed_size) {
|
|
log_error("Failed to read random seed: %s", strerror(EIO));
|
|
r = -EIO;
|
|
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;
|
|
|
|
close_nointr_nofail(fd);
|
|
fd = mkostemp_safe(k, O_WRONLY|O_CLOEXEC);
|
|
if (fd < 0) {
|
|
log_error("Failed to open %s: %m", k);
|
|
r = -errno;
|
|
goto finish;
|
|
}
|
|
|
|
/* Enable secure remove, exclusion from dump, synchronous
|
|
* writing and in-place updating */
|
|
if (ioctl(fd, FS_IOC_GETFLAGS, &attr) < 0)
|
|
log_warning("FS_IOC_GETFLAGS failed: %m");
|
|
|
|
attr |= FS_SECRM_FL|FS_NODUMP_FL|FS_SYNC_FL|FS_NOCOW_FL;
|
|
|
|
if (ioctl(fd, FS_IOC_SETFLAGS, &attr) < 0)
|
|
log_warning("FS_IOC_SETFLAGS failed: %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);
|
|
|
|
l = loop_write(fd, &h, sizeof(h), false);
|
|
if (l < 0 || (size_t) l != sizeof(h)) {
|
|
log_error("Failed to write header: %s", strerror(EIO));
|
|
r = -EIO;
|
|
goto finish;
|
|
}
|
|
|
|
l = loop_write(fd, state, state_size, false);
|
|
if (l < 0 || (size_t) l != state_size) {
|
|
log_error("Failed to write state: %s", strerror(EIO));
|
|
r = -EIO;
|
|
goto finish;
|
|
}
|
|
|
|
if (link(k, p) < 0) {
|
|
log_error("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:
|
|
if (fd >= 0)
|
|
close_nointr_nofail(fd);
|
|
|
|
if (k) {
|
|
unlink(k);
|
|
free(k);
|
|
}
|
|
|
|
free(p);
|
|
|
|
return r;
|
|
#else
|
|
log_error("Forward-secure sealing not available.");
|
|
return -ENOTSUP;
|
|
#endif
|
|
}
|
|
|
|
static int verify(sd_journal *j) {
|
|
int r = 0;
|
|
Iterator i;
|
|
JournalFile *f;
|
|
|
|
assert(j);
|
|
|
|
log_show_color(true);
|
|
|
|
HASHMAP_FOREACH(f, j->files, i) {
|
|
int k;
|
|
usec_t first, validated, last;
|
|
|
|
#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(a, sizeof(a), first),
|
|
format_timestamp(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) {
|
|
/* 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, "/var/log/journal/", &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 the 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 (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 /var/log/journal doesn't even exist,
|
|
* unprivileged users have no access at all */
|
|
if (access("/var/log/journal", F_OK) < 0 &&
|
|
geteuid() != 0 &&
|
|
in_group("systemd-journal") <= 0) {
|
|
log_error("Unprivileged users cannot access messages, unless persistent log storage is\n"
|
|
"enabled. Users in the 'systemd-journal' group may always access messages.");
|
|
return -EACCES;
|
|
}
|
|
|
|
/* If /var/log/journal exists, 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 (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("Error was encountered while opening journal files: %s",
|
|
strerror(err));
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
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);
|
|
|
|
if (arg_action == ACTION_NEW_ID128) {
|
|
r = generate_new_id128();
|
|
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) {
|
|
|
|
const char* database = CATALOG_DATABASE;
|
|
_cleanup_free_ char *copy = NULL;
|
|
if (arg_root) {
|
|
copy = strjoin(arg_root, "/", CATALOG_DATABASE, NULL);
|
|
if (!copy) {
|
|
r = log_oom();
|
|
goto finish;
|
|
}
|
|
path_kill_slashes(copy);
|
|
database = copy;
|
|
}
|
|
|
|
if (arg_action == ACTION_UPDATE_CATALOG) {
|
|
r = catalog_update(database, arg_root, catalog_file_dirs);
|
|
if (r < 0)
|
|
log_error("Failed to list catalog: %s", strerror(-r));
|
|
} 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("Failed to list catalog: %s", strerror(-r));
|
|
}
|
|
|
|
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("Failed to open %s: %s",
|
|
arg_directory ? arg_directory : arg_file ? "files" : "journal",
|
|
strerror(-r));
|
|
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("Journals take up %s on disk.\n",
|
|
format_bytes(sbytes, sizeof(sbytes), bytes));
|
|
return 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("Failed to add filter for units: %s", strerror(-r));
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
r = add_priorities(j);
|
|
if (r < 0) {
|
|
log_error("Failed to add filter for priorities: %s", strerror(-r));
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
r = add_matches(j, argv + optind);
|
|
if (r < 0) {
|
|
log_error("Failed to add filters: %s", strerror(-r));
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
if (_unlikely_(log_get_max_level() >= LOG_PRI(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("Failed to query unique data objects: %s", strerror(-r));
|
|
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_cursor : arg_after_cursor);
|
|
if (r < 0) {
|
|
log_error("Failed to seek to cursor: %s", strerror(-r));
|
|
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 && !arg_follow)
|
|
/* We couldn't find the next entry after the cursor. */
|
|
arg_lines = 0;
|
|
|
|
} else if (arg_since_set && !arg_reverse) {
|
|
r = sd_journal_seek_realtime_usec(j, arg_since);
|
|
if (r < 0) {
|
|
log_error("Failed to seek to date: %s", strerror(-r));
|
|
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("Failed to seek to date: %s", strerror(-r));
|
|
return EXIT_FAILURE;
|
|
}
|
|
r = sd_journal_previous(j);
|
|
|
|
} else if (arg_lines >= 0) {
|
|
r = sd_journal_seek_tail(j);
|
|
if (r < 0) {
|
|
log_error("Failed to seek to tail: %s", strerror(-r));
|
|
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("Failed to seek to tail: %s", strerror(-r));
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
r = sd_journal_previous(j);
|
|
|
|
} else {
|
|
r = sd_journal_seek_head(j);
|
|
if (r < 0) {
|
|
log_error("Failed to seek to head: %s", strerror(-r));
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
r = sd_journal_next(j);
|
|
}
|
|
|
|
if (r < 0) {
|
|
log_error("Failed to iterate through journal: %s", strerror(-r));
|
|
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("Failed to get cutoff: %s", strerror(-r));
|
|
goto finish;
|
|
}
|
|
|
|
if (r > 0) {
|
|
if (arg_follow)
|
|
printf("-- Logs begin at %s. --\n",
|
|
format_timestamp(start_buf, sizeof(start_buf), start));
|
|
else
|
|
printf("-- Logs begin at %s, end at %s. --\n",
|
|
format_timestamp(start_buf, sizeof(start_buf), start),
|
|
format_timestamp(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("Failed to iterate through journal: %s", strerror(-r));
|
|
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("Failed to determine timestamp: %s", strerror(-r));
|
|
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("Failed to determine timestamp: %s", strerror(-r));
|
|
goto finish;
|
|
}
|
|
if (usec < arg_since)
|
|
goto finish;
|
|
}
|
|
|
|
if (!arg_merge) {
|
|
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;
|
|
|
|
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("Failed to get cursor: %s", strerror(-r));
|
|
else if (r >= 0)
|
|
printf("-- cursor: %s\n", cursor);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
r = sd_journal_wait(j, (uint64_t) -1);
|
|
if (r < 0) {
|
|
log_error("Couldn't wait for journal event: %s", strerror(-r));
|
|
goto finish;
|
|
}
|
|
|
|
first_line = false;
|
|
}
|
|
|
|
finish:
|
|
pager_close();
|
|
|
|
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
|
|
}
|