diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-12 03:50:42 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-12 03:50:42 +0000 |
commit | 78e9bb837c258ac0ec7712b3d612cc2f407e731e (patch) | |
tree | f515d16b6efd858a9aeb5b0ef5d6f90bf288283d /src/journal/journalctl.c | |
parent | Adding debian version 255.5-1. (diff) | |
download | systemd-78e9bb837c258ac0ec7712b3d612cc2f407e731e.tar.xz systemd-78e9bb837c258ac0ec7712b3d612cc2f407e731e.zip |
Merging upstream version 256.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/journal/journalctl.c')
-rw-r--r-- | src/journal/journalctl.c | 1816 |
1 files changed, 143 insertions, 1673 deletions
diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c index 45ecc96..45173a6 100644 --- a/src/journal/journalctl.c +++ b/src/journal/journalctl.c @@ -1,85 +1,29 @@ /* SPDX-License-Identifier: LGPL-2.1-or-later */ -#include <errno.h> -#include <fcntl.h> -#include <fnmatch.h> #include <getopt.h> -#include <linux/fs.h> -#include <signal.h> -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> -#include <sys/inotify.h> -#include <sys/stat.h> -#include <unistd.h> - -#include "sd-bus.h" -#include "sd-device.h" + #include "sd-journal.h" -#include "acl-util.h" -#include "alloc-util.h" #include "build.h" -#include "bus-error.h" -#include "bus-locator.h" -#include "bus-util.h" -#include "catalog.h" -#include "chase.h" -#include "chattr-util.h" -#include "constants.h" -#include "devnum-util.h" -#include "dissect-image.h" -#include "fd-util.h" -#include "fileio.h" -#include "format-table.h" -#include "format-util.h" -#include "fs-util.h" -#include "fsprg.h" #include "glob-util.h" -#include "hostname-util.h" #include "id128-print.h" -#include "io-util.h" -#include "journal-def.h" -#include "journal-internal.h" -#include "journal-util.h" -#include "journal-vacuum.h" -#include "journal-verify.h" +#include "journalctl.h" +#include "journalctl-authenticate.h" +#include "journalctl-catalog.h" +#include "journalctl-misc.h" +#include "journalctl-show.h" +#include "journalctl-varlink.h" #include "locale-util.h" -#include "log.h" -#include "logs-show.h" #include "main-func.h" -#include "memory-util.h" -#include "memstream-util.h" -#include "missing_sched.h" -#include "mkdir.h" #include "mount-util.h" #include "mountpoint-util.h" -#include "nulstr-util.h" -#include "pager.h" #include "parse-argument.h" -#include "parse-util.h" -#include "path-util.h" -#include "pcre2-util.h" #include "pretty-print.h" -#include "qrcode-util.h" -#include "random-util.h" -#include "rlimit-util.h" -#include "set.h" -#include "sigbus.h" -#include "signal-util.h" #include "static-destruct.h" -#include "stdio-util.h" #include "string-table.h" -#include "strv.h" #include "syslog-util.h" -#include "terminal-util.h" -#include "tmpfile-util.h" -#include "unit-name.h" -#include "user-util.h" -#include "varlink.h" #define DEFAULT_FSS_INTERVAL_USEC (15*USEC_PER_MINUTE) -#define PROCESS_INOTIFY_INTERVAL 1024 /* Every 1,024 messages processed */ enum { /* Special values for arg_lines */ @@ -87,65 +31,71 @@ enum { ARG_LINES_ALL = -1, }; -static OutputMode arg_output = OUTPUT_SHORT; -static JsonFormatFlags arg_json_format_flags = JSON_FORMAT_OFF; -static bool arg_utc = false; -static bool arg_follow = false; -static bool arg_full = true; -static bool arg_all = false; -static PagerFlags arg_pager_flags = 0; -static int arg_lines = ARG_LINES_DEFAULT; -static bool arg_lines_oldest = false; -static bool arg_no_tail = false; -static bool arg_truncate_newline = 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 bool arg_no_hostname = false; -static const char *arg_cursor = NULL; -static const char *arg_cursor_file = 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 bool arg_file_stdin = false; -static int arg_priorities = 0xFF; -static Set *arg_facilities = NULL; -static char *arg_verify_key = NULL; +JournalctlAction arg_action = ACTION_SHOW; +OutputMode arg_output = OUTPUT_SHORT; +JsonFormatFlags arg_json_format_flags = JSON_FORMAT_OFF; +PagerFlags arg_pager_flags = 0; +bool arg_utc = false; +bool arg_follow = false; +bool arg_full = true; +bool arg_all = false; +int arg_lines = ARG_LINES_DEFAULT; +bool arg_lines_oldest = false; +bool arg_no_tail = false; +bool arg_truncate_newline = false; +bool arg_quiet = false; +bool arg_merge = false; +bool arg_boot = false; +sd_id128_t arg_boot_id = {}; +int arg_boot_offset = 0; +bool arg_dmesg = false; +bool arg_no_hostname = false; +const char *arg_cursor = NULL; +const char *arg_cursor_file = NULL; +const char *arg_after_cursor = NULL; +bool arg_show_cursor = false; +const char *arg_directory = NULL; +char **arg_file = NULL; +bool arg_file_stdin = false; +int arg_priorities = 0; +Set *arg_facilities = NULL; +char *arg_verify_key = NULL; #if HAVE_GCRYPT -static usec_t arg_interval = DEFAULT_FSS_INTERVAL_USEC; -static bool arg_force = false; +usec_t arg_interval = DEFAULT_FSS_INTERVAL_USEC; +bool arg_force = false; #endif -static usec_t arg_since = 0, arg_until = 0; -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 int arg_namespace_flags = 0; -static char *arg_root = NULL; -static char *arg_image = NULL; -static const char *arg_machine = NULL; -static const char *arg_namespace = NULL; -static uint64_t arg_vacuum_size = 0; -static uint64_t arg_vacuum_n_files = 0; -static usec_t arg_vacuum_time = 0; -static Set *arg_output_fields = NULL; -static const char *arg_pattern = NULL; -static pcre2_code *arg_compiled_pattern = NULL; -static PatternCompileCase arg_case = PATTERN_COMPILE_CASE_AUTO; -ImagePolicy *arg_image_policy = NULL; +usec_t arg_since = 0; +usec_t arg_until = 0; +bool arg_since_set = false; +bool arg_until_set = false; +char **arg_syslog_identifier = NULL; +char **arg_exclude_identifier = NULL; +char **arg_system_units = NULL; +char **arg_user_units = NULL; +const char *arg_field = NULL; +bool arg_catalog = false; +bool arg_reverse = false; +int arg_journal_type = 0; +int arg_journal_additional_open_flags = 0; +int arg_namespace_flags = 0; +char *arg_root = NULL; +char *arg_image = NULL; +const char *arg_machine = NULL; +const char *arg_namespace = NULL; +uint64_t arg_vacuum_size = 0; +uint64_t arg_vacuum_n_files = 0; +usec_t arg_vacuum_time = 0; +Set *arg_output_fields = NULL; +const char *arg_pattern = NULL; +pcre2_code *arg_compiled_pattern = NULL; +PatternCompileCase arg_case = PATTERN_COMPILE_CASE_AUTO; +static ImagePolicy *arg_image_policy = NULL; STATIC_DESTRUCTOR_REGISTER(arg_file, strv_freep); STATIC_DESTRUCTOR_REGISTER(arg_facilities, set_freep); STATIC_DESTRUCTOR_REGISTER(arg_verify_key, freep); STATIC_DESTRUCTOR_REGISTER(arg_syslog_identifier, strv_freep); +STATIC_DESTRUCTOR_REGISTER(arg_exclude_identifier, strv_freep); STATIC_DESTRUCTOR_REGISTER(arg_system_units, strv_freep); STATIC_DESTRUCTOR_REGISTER(arg_user_units, strv_freep); STATIC_DESTRUCTOR_REGISTER(arg_root, freep); @@ -154,115 +104,21 @@ STATIC_DESTRUCTOR_REGISTER(arg_output_fields, set_freep); STATIC_DESTRUCTOR_REGISTER(arg_compiled_pattern, pattern_freep); STATIC_DESTRUCTOR_REGISTER(arg_image_policy, image_policy_freep); -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_RELINQUISH_VAR, - ACTION_SYNC, - ACTION_ROTATE, - ACTION_VACUUM, - ACTION_ROTATE_AND_VACUUM, - ACTION_LIST_FIELDS, - ACTION_LIST_FIELD_NAMES, -} arg_action = ACTION_SHOW; - -static int add_matches_for_device(sd_journal *j, const char *devpath) { - _cleanup_(sd_device_unrefp) sd_device *device = NULL; - sd_device *d = NULL; - struct stat st; - int r; - - assert(j); - assert(devpath); - - if (!path_startswith(devpath, "/dev/")) - return log_error_errno(SYNTHETIC_ERRNO(EINVAL), - "Devpath does not start with /dev/"); - - if (stat(devpath, &st) < 0) - return log_error_errno(errno, "Couldn't stat file: %m"); - - r = sd_device_new_from_stat_rdev(&device, &st); - if (r < 0) - return log_error_errno(r, "Failed to get device from devnum " DEVNUM_FORMAT_STR ": %m", DEVNUM_FORMAT_VAL(st.st_rdev)); - - for (d = device; d; ) { - _cleanup_free_ char *match = NULL; - const char *subsys, *sysname, *devnode; - sd_device *parent; - - r = sd_device_get_subsystem(d, &subsys); - if (r < 0) - goto get_parent; - - r = sd_device_get_sysname(d, &sysname); - if (r < 0) - goto get_parent; - - match = strjoin("_KERNEL_DEVICE=+", subsys, ":", sysname); - if (!match) - return log_oom(); - - r = sd_journal_add_match(j, match, 0); - if (r < 0) - return log_error_errno(r, "Failed to add match: %m"); - - if (sd_device_get_devname(d, &devnode) >= 0) { - _cleanup_free_ char *match1 = NULL; - - r = stat(devnode, &st); - if (r < 0) - return log_error_errno(r, "Failed to stat() device node \"%s\": %m", devnode); - - r = asprintf(&match1, "_KERNEL_DEVICE=%c" DEVNUM_FORMAT_STR, S_ISBLK(st.st_mode) ? 'b' : 'c', DEVNUM_FORMAT_VAL(st.st_rdev)); - if (r < 0) - return log_oom(); - - r = sd_journal_add_match(j, match1, 0); - if (r < 0) - return log_error_errno(r, "Failed to add match: %m"); - } - -get_parent: - if (sd_device_get_parent(d, &parent) < 0) - break; - - d = parent; - } - - r = add_match_this_boot(j, arg_machine); - if (r < 0) - return log_error_errno(r, "Failed to add match for the current boot: %m"); - - return 0; -} - -static char *format_timestamp_maybe_utc(char *buf, size_t l, usec_t t) { - - if (arg_utc) - return format_timestamp_style(buf, l, t, TIMESTAMP_UTC); - - return format_timestamp(buf, l, t); -} - -static int parse_boot_descriptor(const char *x, sd_id128_t *boot_id, int *offset) { +static int parse_id_descriptor(const char *x, sd_id128_t *ret_id, int *ret_offset) { sd_id128_t id = SD_ID128_NULL; int off = 0, r; + assert(x); + assert(ret_id); + assert(ret_offset); + if (streq(x, "all")) { - *boot_id = SD_ID128_NULL; - *offset = 0; + *ret_id = SD_ID128_NULL; + *ret_offset = 0; return 0; - } else if (strlen(x) >= SD_ID128_STRING_MAX - 1) { + } + + if (strlen(x) >= SD_ID128_STRING_MAX - 1) { char *t; t = strndupa_safe(x, SD_ID128_STRING_MAX - 1); @@ -284,12 +140,8 @@ static int parse_boot_descriptor(const char *x, sd_id128_t *boot_id, int *offset return r; } - if (boot_id) - *boot_id = id; - - if (offset) - *offset = off; - + *ret_id = id; + *ret_offset = off; return 1; } @@ -328,10 +180,6 @@ default_noarg: return 0; } -static bool arg_lines_needs_seek_end(void) { - return arg_lines >= 0 && !arg_lines_oldest; -} - static int help_facilities(void) { if (!arg_quiet) puts("Available facilities:"); @@ -339,7 +187,7 @@ static int help_facilities(void) { for (int i = 0; i < LOG_NFACILITIES; i++) { _cleanup_free_ char *t = NULL; - if (log_facility_unshifted_to_string_alloc(i, &t)) + if (log_facility_unshifted_to_string_alloc(i, &t) < 0) return log_oom(); puts(t); } @@ -365,7 +213,7 @@ static int help(void) { " -M --machine=CONTAINER Operate on local container\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" + " -i --file=PATH Show journal file\n" " --root=PATH Operate on an alternate filesystem root\n" " --image=PATH Operate on disk image as filesystem root\n" " --image-policy=POLICY Specify disk image dissection policy\n" @@ -380,6 +228,8 @@ static int help(void) { " -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" + " -T --exclude-identifier=STRING\n" + " Hide entries with the specified syslog identifier\n" " -p --priority=RANGE Show entries within the specified priority range\n" " --facility=FACILITY... Show entries with the specified facilities\n" " -g --grep=PATTERN Show entries with MESSAGE matching PATTERN\n" @@ -417,6 +267,7 @@ static int help(void) { " -N --fields List all field names currently used\n" " -F --field=FIELD List all values that a specified field takes\n" " --list-boots Show terse information about recorded boots\n" + " --list-namespaces Show list of journal namespaces\n" " --disk-usage Show total disk usage of all journal files\n" " --vacuum-size=BYTES Reduce disk usage below specified size\n" " --vacuum-files=INT Leave only the specified number of journal files\n" @@ -461,7 +312,6 @@ static int parse_argv(int argc, char *argv[]) { ARG_HEADER, ARG_FACILITY, ARG_SETUP_KEYS, - ARG_FILE, ARG_INTERVAL, ARG_VERIFY, ARG_VERIFY_KEY, @@ -488,6 +338,7 @@ static int parse_argv(int argc, char *argv[]) { ARG_NO_HOSTNAME, ARG_OUTPUT_FIELDS, ARG_NAMESPACE, + ARG_LIST_NAMESPACES, }; static const struct option options[] = { @@ -514,12 +365,13 @@ static int parse_argv(int argc, char *argv[]) { { "system", no_argument, NULL, ARG_SYSTEM }, { "user", no_argument, NULL, ARG_USER }, { "directory", required_argument, NULL, 'D' }, - { "file", required_argument, NULL, ARG_FILE }, + { "file", required_argument, NULL, 'i' }, { "root", required_argument, NULL, ARG_ROOT }, { "image", required_argument, NULL, ARG_IMAGE }, { "image-policy", required_argument, NULL, ARG_IMAGE_POLICY }, { "header", no_argument, NULL, ARG_HEADER }, { "identifier", required_argument, NULL, 't' }, + { "exclude-identifier", required_argument, NULL, 'T' }, { "priority", required_argument, NULL, 'p' }, { "facility", required_argument, NULL, ARG_FACILITY }, { "grep", required_argument, NULL, 'g' }, @@ -557,6 +409,7 @@ static int parse_argv(int argc, char *argv[]) { { "no-hostname", no_argument, NULL, ARG_NO_HOSTNAME }, { "output-fields", required_argument, NULL, ARG_OUTPUT_FIELDS }, { "namespace", required_argument, NULL, ARG_NAMESPACE }, + { "list-namespaces", no_argument, NULL, ARG_LIST_NAMESPACES }, {} }; @@ -565,7 +418,7 @@ static int parse_argv(int argc, char *argv[]) { assert(argc >= 0); assert(argv); - while ((c = getopt_long(argc, argv, "hefo:aln::qmb::kD:p:g:c:S:U:t:u:NF:xrM:", options, NULL)) >= 0) + while ((c = getopt_long(argc, argv, "hefo:aln::qmb::kD:p:g:c:S:U:t:T:u:NF:xrM:i:", options, NULL)) >= 0) switch (c) { @@ -666,19 +519,16 @@ static int parse_argv(int argc, char *argv[]) { arg_boot_offset = 0; if (optarg) { - r = parse_boot_descriptor(optarg, &arg_boot_id, &arg_boot_offset); + r = parse_id_descriptor(optarg, &arg_boot_id, &arg_boot_offset); if (r < 0) return log_error_errno(r, "Failed to parse boot descriptor '%s'", optarg); arg_boot = r; - /* 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... */ } else if (optind < argc) { - r = parse_boot_descriptor(argv[optind], &arg_boot_id, &arg_boot_offset); + /* 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... */ + r = parse_id_descriptor(argv[optind], &arg_boot_id, &arg_boot_offset); if (r >= 0) { arg_boot = r; optind++; @@ -723,11 +573,15 @@ static int parse_argv(int argc, char *argv[]) { break; + case ARG_LIST_NAMESPACES: + arg_action = ACTION_LIST_NAMESPACES; + break; + case 'D': arg_directory = optarg; break; - case ARG_FILE: + case 'i': if (streq(optarg, "-")) /* An undocumented feature: we can read journal files from STDIN. We don't document * this though, since after all we only support this for mmap-able, seekable files, and @@ -959,6 +813,12 @@ static int parse_argv(int argc, char *argv[]) { return log_oom(); break; + case 'T': + r = strv_extend(&arg_exclude_identifier, optarg); + if (r < 0) + return log_oom(); + break; + case 'u': r = strv_extend(&arg_system_units, optarg); if (r < 0) @@ -1081,7 +941,7 @@ static int parse_argv(int argc, char *argv[]) { arg_boot_offset = 0; } - if (!!arg_directory + !!arg_file + !!arg_machine + !!arg_root + !!arg_image > 1) + if (!!arg_directory + !!arg_file + arg_file_stdin + !!arg_machine + !!arg_root + !!arg_image > 1) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Please specify at most one of -D/--directory=, --file=, -M/--machine=, --root=, --image=."); @@ -1089,15 +949,15 @@ static int parse_argv(int argc, char *argv[]) { return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--since= must be before --until=."); - if (!!arg_cursor + !!arg_after_cursor + !!arg_since_set > 1) + if (!!arg_cursor + !!arg_after_cursor + !!arg_cursor_file + !!arg_since_set > 1) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), - "Please specify only one of --since=, --cursor=, and --after-cursor=."); + "Please specify only one of --since=, --cursor=, --cursor-file=, and --after-cursor=."); if (arg_follow && arg_reverse) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Please specify either --reverse or --follow, not both."); - if (arg_lines >= 0 && arg_lines_oldest && (arg_reverse || arg_follow)) + if (arg_action == ACTION_SHOW && arg_lines >= 0 && arg_lines_oldest && (arg_reverse || arg_follow)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--lines=+N is unsupported when --reverse or --follow is specified."); @@ -1135,1056 +995,26 @@ static int parse_argv(int argc, char *argv[]) { arg_reverse = true; } - return 1; -} - -static int add_matches(sd_journal *j, char **args) { - 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 = NULL, *t = NULL, *t2 = NULL, *interpreter = NULL; - struct stat st; - - r = chase(*i, NULL, CHASE_TRAIL_SLASH, &p, NULL); - if (r < 0) - return log_error_errno(r, "Couldn't canonicalize path: %m"); - - if (lstat(p, &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(p, &interpreter) > 0) { - _cleanup_free_ char *comm = NULL; - - r = path_extract_filename(p, &comm); - if (r < 0) - return log_error_errno(r, "Failed to extract filename of '%s': %m", p); - - t = strjoin("_COMM=", strshorten(comm, TASK_COMM_LEN-1)); - if (!t) - return log_oom(); - - /* 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 = strjoin("_EXE=", interpreter); - if (!t2) - return log_oom(); - } - } else { - t = strjoin("_EXE=", p); - if (!t) - return log_oom(); - } - - r = sd_journal_add_match(j, t, 0); - - if (r >=0 && t2) - r = sd_journal_add_match(j, t2, 0); - - } else if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode)) { - r = add_matches_for_device(j, p); - if (r < 0) - return r; - } else - return log_error_errno(SYNTHETIC_ERRNO(EINVAL), - "File is neither a device node, nor regular file, nor executable: %s", - *i); - - 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) - return log_error_errno(SYNTHETIC_ERRNO(EINVAL), - "\"+\" can only be used between terms"); - - return 0; -} - -static int list_boots(sd_journal *j) { - _cleanup_(table_unrefp) Table *table = NULL; - _cleanup_free_ BootId *boots = NULL; - size_t n_boots; - int r; - - assert(j); - - r = journal_get_boots(j, &boots, &n_boots); - if (r < 0) - return log_error_errno(r, "Failed to determine boots: %m"); - if (r == 0) - return 0; - - table = table_new("idx", "boot id", "first entry", "last entry"); - if (!table) - return log_oom(); - - if (arg_full) - table_set_width(table, 0); - - r = table_set_json_field_name(table, 0, "index"); - if (r < 0) - return log_error_errno(r, "Failed to set JSON field name of column 0: %m"); - - (void) table_set_sort(table, (size_t) 0); - (void) table_set_reverse(table, 0, arg_reverse); - - FOREACH_ARRAY(i, boots, n_boots) { - r = table_add_many(table, - TABLE_INT, (int)(i - boots) - (int) n_boots + 1, - TABLE_SET_ALIGN_PERCENT, 100, - TABLE_ID128, i->id, - TABLE_TIMESTAMP, i->first_usec, - TABLE_TIMESTAMP, i->last_usec); - if (r < 0) - return table_log_add_error(r); - } - - r = table_print_with_pager(table, arg_json_format_flags, arg_pager_flags, !arg_quiet); - if (r < 0) - return table_log_print_error(r); - - return 0; -} - -static int add_boot(sd_journal *j) { - int r; - - assert(j); - - if (!arg_boot) - return 0; - - /* Take a shortcut and use the current boot_id, which we can do very quickly. - * We can do this only when we logs are coming from the current machine, - * so take the slow path if log location is specified. */ - if (arg_boot_offset == 0 && sd_id128_is_null(arg_boot_id) && - !arg_directory && !arg_file && !arg_root) - return add_match_this_boot(j, arg_machine); - - if (sd_id128_is_null(arg_boot_id)) { - r = journal_find_boot_by_offset(j, arg_boot_offset, &arg_boot_id); - if (r < 0) - return log_error_errno(r, "Failed to find journal entry from the specified boot offset (%+i): %m", - arg_boot_offset); - if (r == 0) - return log_error_errno(SYNTHETIC_ERRNO(ENODATA), - "No journal boot entry found from the specified boot offset (%+i).", - arg_boot_offset); - } else { - r = journal_find_boot_by_id(j, arg_boot_id); - if (r < 0) - return log_error_errno(r, "Failed to find journal entry from the specified boot ID (%s): %m", - SD_ID128_TO_STRING(arg_boot_id)); - if (r == 0) - return log_error_errno(SYNTHETIC_ERRNO(ENODATA), - "No journal boot entry found from the specified boot ID (%s).", - SD_ID128_TO_STRING(arg_boot_id)); - } - - r = add_match_boot_id(j, arg_boot_id); - if (r < 0) - return log_error_errno(r, "Failed to add match: %m"); - - r = sd_journal_add_conjunction(j); - if (r < 0) - return log_error_errno(r, "Failed to add conjunction: %m"); - - 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 log_error_errno(r, "Failed to add conjunction: %m"); - - return 0; -} - -static int get_possible_units( - sd_journal *j, - const char *fields, - char **patterns, - Set **units) { - - _cleanup_set_free_free_ Set *found = NULL; - int r; - - found = set_new(&string_hash_ops); - if (!found) - return -ENOMEM; - - 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 *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 -ENOMEM; - - 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 = TAKE_PTR(found); - - 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" \ - "_SYSTEMD_USER_SLICE\0" - -static int add_units(sd_journal *j) { - _cleanup_strv_free_ char **patterns = NULL; - int r, count = 0; - - assert(j); - - STRV_FOREACH(i, arg_system_units) { - _cleanup_free_ char *u = NULL; - - r = unit_name_mangle(*i, UNIT_NAME_MANGLE_GLOB | (arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN), &u); - if (r < 0) - return r; - - 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; - char *u; - - r = get_possible_units(j, SYSTEM_UNITS, patterns, &units); - if (r < 0) - return r; - - SET_FOREACH(u, units) { - r = add_matches_for_unit(j, u); - if (r < 0) - return r; - r = sd_journal_add_disjunction(j); - if (r < 0) - return r; - count++; - } - } - - patterns = strv_free(patterns); - - STRV_FOREACH(i, arg_user_units) { - _cleanup_free_ char *u = NULL; - - r = unit_name_mangle(*i, UNIT_NAME_MANGLE_GLOB | (arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN), &u); - if (r < 0) - return r; - - 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; - char *u; - - r = get_possible_units(j, USER_UNITS, patterns, &units); - if (r < 0) - return r; - - SET_FOREACH(u, units) { - 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 log_error_errno(r, "Failed to add conjunction: %m"); - - return 0; -} - -static int add_facilities(sd_journal *j) { - void *p; - int r; - - SET_FOREACH(p, arg_facilities) { - char match[STRLEN("SYSLOG_FACILITY=") + DECIMAL_STR_MAX(int)]; - - xsprintf(match, "SYSLOG_FACILITY=%d", PTR_TO_INT(p)); - - r = sd_journal_add_match(j, match, strlen(match)); - if (r < 0) - return log_error_errno(r, "Failed to add match: %m"); - } - - return 0; -} - -static int add_syslog_identifier(sd_journal *j) { - int r; - - assert(j); - - STRV_FOREACH(i, arg_syslog_identifier) { - _cleanup_free_ char *u = NULL; - - u = strjoin("SYSLOG_IDENTIFIER=", *i); - if (!u) - return -ENOMEM; - 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; -} - -#if HAVE_GCRYPT -static int format_journal_url( - const void *seed, - size_t seed_size, - uint64_t start, - uint64_t interval, - const char *hn, - sd_id128_t machine, - bool full, - char **ret_url) { - - _cleanup_(memstream_done) MemStream m = {}; - FILE *f; - - assert(seed); - assert(seed_size > 0); - - f = memstream_init(&m); - if (!f) - return -ENOMEM; - - if (full) - fputs("fss://", f); - - for (size_t i = 0; i < seed_size; i++) { - if (i > 0 && i % 3 == 0) - fputc('-', f); - fprintf(f, "%02x", ((uint8_t*) seed)[i]); - } - - fprintf(f, "/%"PRIx64"-%"PRIx64, start, interval); - - if (full) { - fprintf(f, "?machine=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(machine)); - if (hn) - fprintf(f, ";hostname=%s", hn); - } - - return memstream_finalize(&m, ret_url, NULL); -} -#endif - -static int setup_keys(void) { -#if HAVE_GCRYPT - size_t mpk_size, seed_size, state_size; - _cleanup_(unlink_and_freep) char *k = NULL; - _cleanup_free_ char *p = NULL; - uint8_t *mpk, *seed, *state; - _cleanup_close_ int fd = -EBADF; - sd_id128_t machine, boot; - struct stat st; - uint64_t n; - int r; - - r = stat("/var/log/journal", &st); - if (r < 0 && !IN_SET(errno, ENOENT, 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) - return log_error_errno(errno, "unlink(\"%s\") failed: %m", p); - } else if (access(p, F_OK) >= 0) - return log_error_errno(SYNTHETIC_ERRNO(EEXIST), - "Sealing key file %s exists already. Use --force to recreate.", p); - - if (asprintf(&k, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss.tmp.XXXXXX", - SD_ID128_FORMAT_VAL(machine)) < 0) - return log_oom(); - - mpk_size = FSPRG_mskinbytes(FSPRG_RECOMMENDED_SECPAR); - mpk = alloca_safe(mpk_size); - - seed_size = FSPRG_RECOMMENDED_SEEDLEN; - seed = alloca_safe(seed_size); - - state_size = FSPRG_stateinbytes(FSPRG_RECOMMENDED_SECPAR); - state = alloca_safe(state_size); - - log_info("Generating seed..."); - r = crypto_random_bytes(seed, seed_size); - if (r < 0) - return log_error_errno(r, "Failed to acquire random seed: %m"); - - 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); - if (fd < 0) - return log_error_errno(fd, "Failed to open %s: %m", k); - - r = chattr_secret(fd, CHATTR_WARN_UNSUPPORTED_FLAGS); - if (r < 0) - log_full_errno(ERRNO_IS_NOT_SUPPORTED(r) ? LOG_DEBUG : LOG_WARNING, - r, "Failed to set file attributes on '%s', ignoring: %m", k); - - struct FSSHeader h = { - .signature = { 'K', 'S', 'H', 'H', 'R', 'H', 'L', 'P' }, - .machine_id = machine, - .boot_id = boot, - .header_size = htole64(sizeof(h)), - .start_usec = htole64(n * arg_interval), - .interval_usec = htole64(arg_interval), - .fsprg_secpar = htole16(FSPRG_RECOMMENDED_SECPAR), - .fsprg_state_size = htole64(state_size), - }; - - r = loop_write(fd, &h, sizeof(h)); - if (r < 0) - return log_error_errno(r, "Failed to write header: %m"); - - r = loop_write(fd, state, state_size); - if (r < 0) - return log_error_errno(r, "Failed to write state: %m"); - - if (rename(k, p) < 0) - return log_error_errno(errno, "Failed to link file: %m"); - - k = mfree(k); - - _cleanup_free_ char *hn = NULL, *key = NULL; - - r = format_journal_url(seed, seed_size, n, arg_interval, hn, machine, false, &key); - if (r < 0) - return r; - - if (on_tty()) { - hn = gethostname_malloc(); - if (hn) - hostname_cleanup(hn); - - fprintf(stderr, - "\nNew keys have been generated for host %s%s" SD_ID128_FORMAT_STR ".\n" - "\n" - "The %ssecret sealing key%s has been written to the following local file.\n" - "This key file is automatically updated when the sealing key is advanced.\n" - "It should not be used on multiple hosts.\n" - "\n" - "\t%s\n" - "\n" - "The sealing key is automatically changed every %s.\n" - "\n" - "Please write down the following %ssecret verification key%s. It should be stored\n" - "in a safe location and should not be saved locally on disk.\n" - "\n\t%s", - strempty(hn), hn ? "/" : "", - SD_ID128_FORMAT_VAL(machine), - ansi_highlight(), ansi_normal(), - p, - FORMAT_TIMESPAN(arg_interval, 0), - ansi_highlight(), ansi_normal(), - ansi_highlight_red()); - fflush(stderr); - } - - puts(key); - - if (on_tty()) { - fprintf(stderr, "%s", ansi_normal()); -#if HAVE_QRENCODE - _cleanup_free_ char *url = NULL; - r = format_journal_url(seed, seed_size, n, arg_interval, hn, machine, true, &url); - if (r < 0) - return r; - - (void) print_qrcode(stderr, - "To transfer the verification key to your phone scan the QR code below", - url); -#endif - } - - return 0; -#else - return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), - "Forward-secure sealing not available."); -#endif -} - -static int verify(sd_journal *j, bool verbose) { - int r = 0; - JournalFile *f; - - assert(j); - - log_show_color(true); - - ORDERED_HASHMAP_FOREACH(f, j->files) { - int k; - usec_t first = 0, validated = 0, last = 0; - -#if 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, verbose); - if (k == -EINVAL) - /* If the key was invalid give up right-away. */ - return k; - else if (k < 0) - r = log_warning_errno(k, "FAIL: %s (%m)", f->path); - else { - char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX]; - log_full(verbose ? LOG_INFO : LOG_DEBUG, "PASS: %s", f->path); - - if (arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) { - if (validated > 0) { - log_full(verbose ? LOG_INFO : LOG_DEBUG, - "=> 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(last > validated ? last - validated : 0, 0)); - } else if (last > 0) - log_full(verbose ? LOG_INFO : LOG_DEBUG, - "=> No sealing yet, %s of entries not sealed.", - FORMAT_TIMESPAN(last - first, 0)); - else - log_full(verbose ? LOG_INFO : LOG_DEBUG, - "=> No sealing yet, no entries in file."); - } - } - } - - return r; -} - -static int simple_varlink_call(const char *option, const char *method) { - _cleanup_(varlink_flush_close_unrefp) Varlink *link = NULL; - const char *error, *fn; - int r; - - if (arg_machine) - return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "%s is not supported in conjunction with --machine=.", option); - - fn = arg_namespace ? - strjoina("/run/systemd/journal.", arg_namespace, "/io.systemd.journal") : - "/run/systemd/journal/io.systemd.journal"; - - r = varlink_connect_address(&link, fn); - if (r < 0) - return log_error_errno(r, "Failed to connect to %s: %m", fn); - - (void) varlink_set_description(link, "journal"); - (void) varlink_set_relative_timeout(link, USEC_INFINITY); - - r = varlink_call(link, method, NULL, NULL, &error, NULL); - if (r < 0) - return log_error_errno(r, "Failed to execute varlink call: %m"); - if (error) - return log_error_errno(SYNTHETIC_ERRNO(ENOANO), - "Failed to execute varlink call: %s", error); - - return 0; -} - -static int flush_to_var(void) { - if (access("/run/systemd/journal/flushed", F_OK) >= 0) - return 0; /* Already flushed, no need to contact journald */ - if (errno != ENOENT) - return log_error_errno(errno, "Unable to check for existence of /run/systemd/journal/flushed: %m"); - - return simple_varlink_call("--flush", "io.systemd.Journal.FlushToVar"); -} - -static int relinquish_var(void) { - return simple_varlink_call("--relinquish-var/--smart-relinquish-var", "io.systemd.Journal.RelinquishVar"); -} - -static int rotate(void) { - return simple_varlink_call("--rotate", "io.systemd.Journal.Rotate"); -} - -static int sync_journal(void) { - return simple_varlink_call("--sync", "io.systemd.Journal.Synchronize"); -} - -static int action_list_fields(sd_journal *j) { - const void *data; - size_t size; - int r, n_shown = 0; - - assert(arg_field); - - r = sd_journal_set_data_threshold(j, 0); - if (r < 0) - return log_error_errno(r, "Failed to unset data size threshold: %m"); - - r = sd_journal_query_unique(j, arg_field); - if (r < 0) - return log_error_errno(r, "Failed to query unique data objects: %m"); - - 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 0; -} - -static int update_cursor(sd_journal *j) { - _cleanup_free_ char *cursor = NULL; - int r; - - assert(j); - - if (!arg_show_cursor && !arg_cursor_file) - return 0; - - r = sd_journal_get_cursor(j, &cursor); - if (r == -EADDRNOTAVAIL) - return 0; - if (r < 0) - return log_error_errno(r, "Failed to get cursor: %m"); - - if (arg_show_cursor) - printf("-- cursor: %s\n", cursor); - - if (arg_cursor_file) { - r = write_string_file(arg_cursor_file, cursor, WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_ATOMIC); - if (r < 0) - return log_error_errno(r, "Failed to write new cursor to %s: %m", arg_cursor_file); - } - - return 0; -} - -typedef struct Context { - sd_journal *journal; - bool has_cursor; - bool need_seek; - bool since_seeked; - bool ellipsized; - bool previous_boot_id_valid; - sd_id128_t previous_boot_id; - sd_id128_t previous_boot_id_output; - dual_timestamp previous_ts_output; -} Context; - -static int show(Context *c) { - sd_journal *j; - int r, n_shown = 0; - - assert(c); - - j = ASSERT_PTR(c->journal); - - while (arg_lines < 0 || n_shown < arg_lines || arg_follow) { - int flags; - size_t highlight[2] = {}; - - if (c->need_seek) { - r = sd_journal_step_one(j, !arg_reverse); - if (r < 0) - return log_error_errno(r, "Failed to iterate through journal: %m"); - if (r == 0) - break; - } - - if (arg_until_set && !arg_reverse && (arg_lines < 0 || arg_since_set || c->has_cursor)) { - /* If --lines= is set, we usually rely on the n_shown to tell us when to stop. - * However, if --since= or one of the cursor argument is set too, we may end up - * having less than --lines= to output. In this case let's also check if the entry - * is in range. */ - - usec_t usec; - - r = sd_journal_get_realtime_usec(j, &usec); - if (r < 0) - return log_error_errno(r, "Failed to determine timestamp: %m"); - if (usec > arg_until) - break; - } - - if (arg_since_set && (arg_reverse || !c->since_seeked)) { - usec_t usec; - - r = sd_journal_get_realtime_usec(j, &usec); - if (r < 0) - return log_error_errno(r, "Failed to determine timestamp: %m"); - - if (usec < arg_since) { - if (arg_reverse) - break; /* Reached the earliest entry */ - - /* arg_lines >= 0 (!since_seeked): - * We jumped arg_lines back and it seems to be too much */ - r = sd_journal_seek_realtime_usec(j, arg_since); - if (r < 0) - return log_error_errno(r, "Failed to seek to date: %m"); - c->since_seeked = true; - - c->need_seek = true; - continue; - } - c->since_seeked = true; /* We're surely within the range of --since now */ - } - - if (!arg_merge && !arg_quiet) { - sd_id128_t boot_id; - - r = sd_journal_get_monotonic_usec(j, NULL, &boot_id); - if (r >= 0) { - if (c->previous_boot_id_valid && - !sd_id128_equal(boot_id, c->previous_boot_id)) - printf("%s-- Boot "SD_ID128_FORMAT_STR" --%s\n", - ansi_highlight(), SD_ID128_FORMAT_VAL(boot_id), ansi_normal()); - - c->previous_boot_id = boot_id; - c->previous_boot_id_valid = true; - } - } - - if (arg_compiled_pattern) { - const void *message; - size_t len; - - r = sd_journal_get_data(j, "MESSAGE", &message, &len); - if (r < 0) { - if (r == -ENOENT) { - c->need_seek = true; - continue; - } - - return log_error_errno(r, "Failed to get MESSAGE field: %m"); - } - - assert_se(message = startswith(message, "MESSAGE=")); - - r = pattern_matches_and_log(arg_compiled_pattern, message, - len - strlen("MESSAGE="), highlight); - if (r < 0) - return r; - if (r == 0) { - c->need_seek = true; - continue; - } - } - - flags = - arg_all * OUTPUT_SHOW_ALL | - arg_full * OUTPUT_FULL_WIDTH | - colors_enabled() * OUTPUT_COLOR | - arg_catalog * OUTPUT_CATALOG | - arg_utc * OUTPUT_UTC | - arg_truncate_newline * OUTPUT_TRUNCATE_NEWLINE | - arg_no_hostname * OUTPUT_NO_HOSTNAME; - - r = show_journal_entry(stdout, j, arg_output, 0, flags, - arg_output_fields, highlight, &c->ellipsized, - &c->previous_ts_output, &c->previous_boot_id_output); - c->need_seek = true; - if (r == -EADDRNOTAVAIL) - break; - if (r < 0) - return r; - - n_shown++; - - /* If journalctl take a long time to process messages, and during that time journal file - * rotation occurs, a journalctl client will keep those rotated files open until it calls - * sd_journal_process(), which typically happens as a result of calling sd_journal_wait() below - * in the "following" case. By periodically calling sd_journal_process() during the processing - * loop we shrink the window of time a client instance has open file descriptors for rotated - * (deleted) journal files. */ - if ((n_shown % PROCESS_INOTIFY_INTERVAL) == 0) { - r = sd_journal_process(j); - if (r < 0) - return log_error_errno(r, "Failed to process inotify events: %m"); - } - } - - return n_shown; -} - -static int show_and_fflush(Context *c, sd_event_source *s) { - int r; - - assert(c); - assert(s); - - r = show(c); - if (r < 0) - return sd_event_exit(sd_event_source_get_event(s), r); - - fflush(stdout); - return 0; -} - -static int on_journal_event(sd_event_source *s, int fd, uint32_t revents, void *userdata) { - Context *c = ASSERT_PTR(userdata); - int r; - - assert(s); - - r = sd_journal_process(c->journal); - if (r < 0) { - log_error_errno(r, "Failed to process journal events: %m"); - return sd_event_exit(sd_event_source_get_event(s), r); - } - - return show_and_fflush(c, s); -} - -static int on_first_event(sd_event_source *s, void *userdata) { - return show_and_fflush(userdata, s); -} - -static int on_signal(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) { - assert(s); - assert(si); - assert(IN_SET(si->ssi_signo, SIGTERM, SIGINT)); - - return sd_event_exit(sd_event_source_get_event(s), si->ssi_signo); -} - -static int setup_event(Context *c, int fd, sd_event **ret) { - _cleanup_(sd_event_unrefp) sd_event *e = NULL; - int r; - - assert(arg_follow); - assert(c); - assert(fd >= 0); - assert(ret); - - r = sd_event_default(&e); - if (r < 0) - return log_error_errno(r, "Failed to allocate sd_event object: %m"); - - (void) sd_event_add_signal(e, NULL, SIGTERM | SD_EVENT_SIGNAL_PROCMASK, on_signal, NULL); - (void) sd_event_add_signal(e, NULL, SIGINT | SD_EVENT_SIGNAL_PROCMASK, on_signal, NULL); - - r = sd_event_add_io(e, NULL, fd, EPOLLIN, &on_journal_event, c); - if (r < 0) - return log_error_errno(r, "Failed to add io event source for journal: %m"); - - /* Also keeps an eye on STDOUT, and exits as soon as we see a POLLHUP on that, i.e. when it is closed. */ - r = sd_event_add_io(e, NULL, STDOUT_FILENO, EPOLLHUP|EPOLLERR, NULL, INT_TO_PTR(-ECANCELED)); - if (r == -EPERM) - /* Installing an epoll watch on a regular file doesn't work and fails with EPERM. Which is - * totally OK, handle it gracefully. epoll_ctl() documents EPERM as the error returned when - * the specified fd doesn't support epoll, hence it's safe to check for that. */ - log_debug_errno(r, "Unable to install EPOLLHUP watch on stderr, not watching for hangups."); - else if (r < 0) - return log_error_errno(r, "Failed to add io event source for stdout: %m"); - - if (arg_lines != 0 || arg_since_set) { - r = sd_event_add_defer(e, NULL, on_first_event, c); - if (r < 0) - return log_error_errno(r, "Failed to add defer event source: %m"); - } + if (!arg_follow) + arg_journal_additional_open_flags = SD_JOURNAL_ASSUME_IMMUTABLE; - *ret = TAKE_PTR(e); - return 0; + return 1; } static int run(int argc, char *argv[]) { - bool need_seek = false, since_seeked = false, after_cursor = false; _cleanup_(loop_device_unrefp) LoopDevice *loop_device = NULL; _cleanup_(umount_and_freep) char *mounted_dir = NULL; - _cleanup_(sd_journal_closep) sd_journal *j = NULL; - _cleanup_free_ char *cursor_from_file = NULL; - const char *cursor = NULL; - int n_shown, r, poll_fd = -EBADF; + int r; setlocale(LC_ALL, ""); log_setup(); - /* Increase max number of open files if we can, we might needs this when browsing journal files, which might be - * split up into many files. */ - (void) rlimit_nofile_bump(HIGH_RLIMIT_NOFILE); - r = parse_argv(argc, argv); if (r <= 0) return r; + char **args = strv_skip(argv, optind); + if (arg_image) { assert(!arg_root); @@ -2195,7 +1025,8 @@ static int run(int argc, char *argv[]) { DISSECT_IMAGE_REQUIRE_ROOT | DISSECT_IMAGE_VALIDATE_OS | DISSECT_IMAGE_RELAX_VAR_CHECK | - (arg_action == ACTION_UPDATE_CATALOG ? DISSECT_IMAGE_FSCK|DISSECT_IMAGE_GROWFS : DISSECT_IMAGE_READ_ONLY), + (arg_action == ACTION_UPDATE_CATALOG ? DISSECT_IMAGE_FSCK|DISSECT_IMAGE_GROWFS : DISSECT_IMAGE_READ_ONLY) | + DISSECT_IMAGE_ALLOW_USERSPACE_VERITY, &mounted_dir, /* ret_dir_fd= */ NULL, &loop_device); @@ -2207,427 +1038,66 @@ static int run(int argc, char *argv[]) { return log_oom(); } - signal(SIGWINCH, columns_lines_cache_reset); - sigbus_install(); - switch (arg_action) { + case ACTION_SHOW: + return action_show(args); + case ACTION_NEW_ID128: return id128_print_new(ID128_PRINT_PRETTY); case ACTION_SETUP_KEYS: - return setup_keys(); + return action_setup_keys(); case ACTION_LIST_CATALOG: case ACTION_DUMP_CATALOG: - case ACTION_UPDATE_CATALOG: { - _cleanup_free_ char *database = NULL; + return action_list_catalog(args); - database = path_join(arg_root, secure_getenv("SYSTEMD_CATALOG") ?: CATALOG_DATABASE); - if (!database) - return log_oom(); + case ACTION_UPDATE_CATALOG: + return action_update_catalog(); - if (arg_action == ACTION_UPDATE_CATALOG) { - const char *e; + case ACTION_PRINT_HEADER: + return action_print_header(); - e = secure_getenv("SYSTEMD_CATALOG_SOURCES"); + case ACTION_VERIFY: + return action_verify(); - r = catalog_update( - database, - arg_root, - e ? (const char* const*) STRV_MAKE(e) : catalog_file_dirs); - if (r < 0) - return log_error_errno(r, "Failed to list catalog: %m"); - } else { - bool oneline = arg_action == ACTION_LIST_CATALOG; + case ACTION_DISK_USAGE: + return action_disk_usage(); - pager_open(arg_pager_flags); + case ACTION_LIST_BOOTS: + return action_list_boots(); - if (optind < argc) - r = catalog_list_items(stdout, database, oneline, argv + optind); - else - r = catalog_list(stdout, database, oneline); - if (r < 0) - return log_error_errno(r, "Failed to list catalog: %m"); - } + case ACTION_LIST_FIELDS: + return action_list_fields(); - return 0; - } + case ACTION_LIST_FIELD_NAMES: + return action_list_field_names(); + + case ACTION_LIST_NAMESPACES: + return action_list_namespaces(); case ACTION_FLUSH: - return flush_to_var(); + return action_flush_to_var(); case ACTION_RELINQUISH_VAR: - return relinquish_var(); + return action_relinquish_var(); case ACTION_SYNC: - return sync_journal(); + return action_sync(); case ACTION_ROTATE: - return rotate(); + return action_rotate(); - case ACTION_SHOW: - case ACTION_PRINT_HEADER: - case ACTION_VERIFY: - case ACTION_DISK_USAGE: - case ACTION_LIST_BOOTS: case ACTION_VACUUM: - case ACTION_ROTATE_AND_VACUUM: - case ACTION_LIST_FIELDS: - case ACTION_LIST_FIELD_NAMES: - /* These ones require access to the journal files, continue below. */ - break; - - default: - assert_not_reached(); - } - - if (arg_directory) - r = sd_journal_open_directory(&j, arg_directory, arg_journal_type); - else if (arg_root) - r = sd_journal_open_directory(&j, arg_root, arg_journal_type | SD_JOURNAL_OS_ROOT); - else if (arg_file_stdin) - r = sd_journal_open_files_fd(&j, (int[]) { STDIN_FILENO }, 1, 0); - else if (arg_file) - r = sd_journal_open_files(&j, (const char**) arg_file, 0); - else if (arg_machine) - r = journal_open_machine(&j, arg_machine); - else - r = sd_journal_open_namespace( - &j, - arg_namespace, - (arg_merge ? 0 : SD_JOURNAL_LOCAL_ONLY) | - arg_namespace_flags | arg_journal_type); - if (r < 0) - return log_error_errno(r, "Failed to open %s: %m", arg_directory ?: arg_file ? "files" : "journal"); - - r = journal_access_check_and_warn(j, arg_quiet, - !(arg_journal_type == SD_JOURNAL_CURRENT_USER || arg_user_units)); - if (r < 0) - return r; - - switch (arg_action) { - - case ACTION_NEW_ID128: - case ACTION_SETUP_KEYS: - case ACTION_LIST_CATALOG: - case ACTION_DUMP_CATALOG: - case ACTION_UPDATE_CATALOG: - case ACTION_FLUSH: - case ACTION_SYNC: - case ACTION_ROTATE: - assert_not_reached(); - - case ACTION_PRINT_HEADER: - journal_print_header(j); - return 0; - - case ACTION_VERIFY: - return verify(j, !arg_quiet); - - case ACTION_DISK_USAGE: { - uint64_t bytes = 0; - - r = sd_journal_get_usage(j, &bytes); - if (r < 0) - return r; - - printf("Archived and active journals take up %s in the file system.\n", - FORMAT_BYTES(bytes)); - - return 0; - } - - case ACTION_LIST_BOOTS: - return list_boots(j); + return action_vacuum(); case ACTION_ROTATE_AND_VACUUM: - - r = rotate(); - if (r < 0) - return r; - - _fallthrough_; - - case ACTION_VACUUM: { - Directory *d; - int ret = 0; - - HASHMAP_FOREACH(d, j->directories_by_path) { - r = journal_directory_vacuum(d->path, arg_vacuum_size, arg_vacuum_n_files, arg_vacuum_time, NULL, !arg_quiet); - if (r < 0) { - log_error_errno(r, "Failed to vacuum %s: %m", d->path); - if (ret >= 0) - ret = r; - } - } - - return ret; - } - - case ACTION_LIST_FIELD_NAMES: { - const char *field; - - SD_JOURNAL_FOREACH_FIELD(j, field) - printf("%s\n", field); - - return 0; - } - - case ACTION_SHOW: - case ACTION_LIST_FIELDS: - break; + return action_rotate_and_vacuum(); default: assert_not_reached(); } - - if (arg_boot_offset != 0 && - sd_journal_has_runtime_files(j) > 0 && - sd_journal_has_persistent_files(j) == 0) { - log_info("Specifying boot ID or boot offset has no effect, no persistent journal was found."); - - if (arg_action == ACTION_SHOW && arg_compiled_pattern) - return -ENOENT; - - return 0; - } - /* 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 r; - - r = add_dmesg(j); - if (r < 0) - return r; - - r = add_units(j); - if (r < 0) - return log_error_errno(r, "Failed to add filter for units: %m"); - - r = add_syslog_identifier(j); - if (r < 0) - return log_error_errno(r, "Failed to add filter for syslog identifiers: %m"); - - r = add_priorities(j); - if (r < 0) - return r; - - r = add_facilities(j); - if (r < 0) - return r; - - r = add_matches(j, argv + optind); - if (r < 0) - return r; - - if (DEBUG_LOGGING) { - _cleanup_free_ char *filter = NULL; - - filter = journal_make_match_string(j); - if (!filter) - return log_oom(); - - log_debug("Journal filter: %s", filter); - } - - if (arg_action == ACTION_LIST_FIELDS) - return action_list_fields(j); - - /* Opening the fd now means the first sd_journal_wait() will actually wait */ - if (arg_follow) { - poll_fd = sd_journal_get_fd(j); - if (poll_fd == -EMFILE) { - log_warning_errno(poll_fd, "Insufficient watch descriptors available. Reverting to -n."); - arg_follow = false; - } else if (poll_fd == -EMEDIUMTYPE) - return log_error_errno(poll_fd, "The --follow switch is not supported in conjunction with reading from STDIN."); - else if (poll_fd < 0) - return log_error_errno(poll_fd, "Failed to get journal fd: %m"); - } - - if (arg_cursor || arg_after_cursor || arg_cursor_file) { - cursor = arg_cursor ?: arg_after_cursor; - - if (arg_cursor_file) { - r = read_one_line_file(arg_cursor_file, &cursor_from_file); - if (r < 0 && r != -ENOENT) - return log_error_errno(r, "Failed to read cursor file %s: %m", arg_cursor_file); - - if (r > 0) { - cursor = cursor_from_file; - after_cursor = true; - } - } else - after_cursor = arg_after_cursor; - } - - if (cursor) { - r = sd_journal_seek_cursor(j, cursor); - if (r < 0) - return log_error_errno(r, "Failed to seek to cursor: %m"); - - r = sd_journal_step_one(j, !arg_reverse); - if (r < 0) - return log_error_errno(r, "Failed to iterate through journal: %m"); - - if (after_cursor && r > 0) { - /* With --after-cursor=/--cursor-file= we want to skip the first entry only if it's - * the entry the cursor is pointing at, otherwise, if some journal filters are used, - * we might skip the first entry of the filter match, which leads to unexpectedly - * missing journal entries. */ - int k; - - k = sd_journal_test_cursor(j, cursor); - if (k < 0) - return log_error_errno(k, "Failed to test cursor against current entry: %m"); - if (k > 0) - /* Current entry matches the one our cursor is pointing at, so let's try - * to advance the next entry. */ - r = sd_journal_step_one(j, !arg_reverse); - } - - if (r == 0) { - /* We couldn't find the next entry after the cursor. */ - if (arg_follow) - need_seek = true; - else - arg_lines = 0; - } - } else if (arg_until_set && (arg_reverse || arg_lines_needs_seek_end())) { - /* If both --until and any of --reverse and --lines=N is specified, things get - * a little tricky. We seek to the place of --until first. If only --reverse or - * --reverse and --lines is specified, we search backwards and let the output - * counter handle --lines for us. If only --lines is used, we just jump backwards - * arg_lines and search afterwards from there. */ - - r = sd_journal_seek_realtime_usec(j, arg_until); - if (r < 0) - return log_error_errno(r, "Failed to seek to date: %m"); - - if (arg_reverse) - r = sd_journal_previous(j); - else /* arg_lines_needs_seek_end */ - r = sd_journal_previous_skip(j, arg_lines); - - } else if (arg_reverse) { - r = sd_journal_seek_tail(j); - if (r < 0) - return log_error_errno(r, "Failed to seek to tail: %m"); - - r = sd_journal_previous(j); - - } else if (arg_lines_needs_seek_end()) { - r = sd_journal_seek_tail(j); - if (r < 0) - return log_error_errno(r, "Failed to seek to tail: %m"); - - r = sd_journal_previous_skip(j, arg_lines); - - } else if (arg_since_set) { - /* This is placed after arg_reverse and arg_lines. If --since is used without - * both, we seek to the place of --since and search afterwards from there. - * If used with --reverse or --lines, we seek to the tail first and check if - * the entry is within the range of --since later. */ - - r = sd_journal_seek_realtime_usec(j, arg_since); - if (r < 0) - return log_error_errno(r, "Failed to seek to date: %m"); - since_seeked = true; - - r = sd_journal_next(j); - - } else { - r = sd_journal_seek_head(j); - if (r < 0) - return log_error_errno(r, "Failed to seek to head: %m"); - - r = sd_journal_next(j); - } - if (r < 0) - return log_error_errno(r, "Failed to iterate through journal: %m"); - if (r == 0) - need_seek = true; - - if (!arg_follow) - pager_open(arg_pager_flags); - - if (!arg_quiet && (arg_lines != 0 || arg_follow) && DEBUG_LOGGING) { - 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) - return log_error_errno(r, "Failed to get cutoff: %m"); - if (r > 0) { - if (arg_follow) - printf("-- Journal begins at %s. --\n", - format_timestamp_maybe_utc(start_buf, sizeof(start_buf), start)); - else - printf("-- Journal begins at %s, ends at %s. --\n", - format_timestamp_maybe_utc(start_buf, sizeof(start_buf), start), - format_timestamp_maybe_utc(end_buf, sizeof(end_buf), end)); - } - } - - Context c = { - .journal = j, - .has_cursor = cursor, - .need_seek = need_seek, - .since_seeked = since_seeked, - }; - - if (arg_follow) { - _cleanup_(sd_event_unrefp) sd_event *e = NULL; - int sig; - - assert(poll_fd >= 0); - - r = setup_event(&c, poll_fd, &e); - if (r < 0) - return r; - - r = sd_event_loop(e); - if (r < 0) - return r; - sig = r; - - /* unref signal event sources. */ - e = sd_event_unref(e); - - r = update_cursor(j); - if (r < 0) - return r; - - /* re-send the original signal. */ - assert(SIGNAL_VALID(sig)); - if (raise(sig) < 0) - log_error("Failed to raise the original signal SIG%s, ignoring: %m", signal_to_string(sig)); - - return 0; - } - - r = show(&c); - if (r < 0) - return r; - n_shown = r; - - if (n_shown == 0 && !arg_quiet) - printf("-- No entries --\n"); - - r = update_cursor(j); - if (r < 0) - return r; - - if (arg_compiled_pattern && n_shown == 0) - /* --grep was used, no error was thrown, but the pattern didn't - * match anything. Let's mimic grep's behavior here and return - * a non-zero exit code, so journalctl --grep can be used - * in scripts and such */ - return -ENOENT; - - return 0; } -DEFINE_MAIN_FUNCTION(run); +DEFINE_MAIN_FUNCTION_WITH_POSITIVE_SIGNAL(run); |