#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
-#include <sys/poll.h>
#include <time.h>
#include <getopt.h>
#include <signal.h>
#include <sys/ioctl.h>
#include <linux/fs.h>
+#ifdef HAVE_ACL
+#include <sys/acl.h>
+#include "acl-util.h"
+#endif
+
#include <systemd/sd-journal.h>
#include "log.h"
static bool arg_quiet = false;
static bool arg_merge = false;
static bool arg_this_boot = false;
+static bool arg_dmesg = false;
static const char *arg_cursor = NULL;
static const char *arg_directory = NULL;
static int arg_priorities = 0xFF;
#endif
static usec_t arg_since, arg_until;
static bool arg_since_set = false, arg_until_set = false;
-static const char *arg_unit = NULL;
-static bool arg_unit_system;
+static char **arg_system_units = NULL;
+static char **arg_user_units = NULL;
static const char *arg_field = NULL;
static bool arg_catalog = false;
static bool arg_reverse = false;
+static int arg_journal_type = 0;
+static const char *arg_root = NULL;
static enum {
ACTION_SHOW,
ACTION_VERIFY,
ACTION_DISK_USAGE,
ACTION_LIST_CATALOG,
+ ACTION_DUMP_CATALOG,
ACTION_UPDATE_CATALOG
} arg_action = ACTION_SHOW;
printf("%s [OPTIONS...] [MATCHES...]\n\n"
"Query the journal.\n\n"
"Flags:\n"
+ " --system Show only the system journal\n"
+ " --user Show only the user journal for current user\n"
" --since=DATE Start showing entries newer or of the specified date\n"
" --until=DATE Stop showing entries older or of the specified date\n"
" -c --cursor=CURSOR Start showing entries from specified cursor\n"
" -b --this-boot Show data only from current boot\n"
+ " -k --dmesg Show kmsg log from current boot\n"
" -u --unit=UNIT Show data only from the specified unit\n"
" --user-unit=UNIT Show data only from the specified user session unit\n"
" -p --priority=RANGE Show only messages within the specified priority range\n"
" --no-pager Do not pipe output into a pager\n"
" -m --merge Show entries from all available journals\n"
" -D --directory=PATH Show journal files from directory\n"
+ " --root=ROOT Operate on catalog files underneath the root ROOT\n"
#ifdef HAVE_GCRYPT
" --interval=TIME Time interval for changing the FSS sealing key\n"
" --verify-key=KEY Specify FSS verification key\n"
" --disk-usage Show total disk usage\n"
" -F --field=FIELD List all values a certain field takes\n"
" --list-catalog Show message IDs of all entries in the message catalog\n"
+ " --dump-catalog Show entries in the message catalog\n"
" --update-catalog Update the message catalog database\n"
#ifdef HAVE_GCRYPT
" --setup-keys Generate new FSS key pair\n"
ARG_NO_PAGER,
ARG_NO_TAIL,
ARG_NEW_ID128,
+ ARG_USER,
+ ARG_SYSTEM,
+ ARG_ROOT,
ARG_HEADER,
ARG_FULL,
ARG_SETUP_KEYS,
ARG_UNTIL,
ARG_USER_UNIT,
ARG_LIST_CATALOG,
- ARG_UPDATE_CATALOG
+ ARG_DUMP_CATALOG,
+ ARG_UPDATE_CATALOG,
};
static const struct option options[] = {
{ "quiet", no_argument, NULL, 'q' },
{ "merge", no_argument, NULL, 'm' },
{ "this-boot", no_argument, NULL, 'b' },
+ { "dmesg", no_argument, NULL, 'k' },
+ { "system", no_argument, NULL, ARG_SYSTEM },
+ { "user", no_argument, NULL, ARG_USER },
{ "directory", required_argument, NULL, 'D' },
+ { "root", required_argument, NULL, ARG_ROOT },
{ "header", no_argument, NULL, ARG_HEADER },
{ "priority", required_argument, NULL, 'p' },
{ "setup-keys", no_argument, NULL, ARG_SETUP_KEYS },
{ "field", required_argument, NULL, 'F' },
{ "catalog", no_argument, NULL, 'x' },
{ "list-catalog", no_argument, NULL, ARG_LIST_CATALOG },
+ { "dump-catalog", no_argument, NULL, ARG_DUMP_CATALOG },
{ "update-catalog",no_argument, NULL, ARG_UPDATE_CATALOG },
{ "reverse", no_argument, NULL, 'r' },
{ NULL, 0, NULL, 0 }
assert(argc >= 0);
assert(argv);
- while ((c = getopt_long(argc, argv, "hefo:an::qmbD:p:c:u:F:xr", options, NULL)) >= 0) {
+ while ((c = getopt_long(argc, argv, "hefo:an::qmbkD:p:c:u:F:xr", options, NULL)) >= 0) {
switch (c) {
arg_this_boot = true;
break;
+ case 'k':
+ arg_this_boot = arg_dmesg = true;
+ break;
+
+ case ARG_SYSTEM:
+ arg_journal_type |= SD_JOURNAL_SYSTEM;
+ break;
+
+ case ARG_USER:
+ arg_journal_type |= SD_JOURNAL_CURRENT_USER;
+ break;
+
case 'D':
arg_directory = optarg;
break;
+ case ARG_ROOT:
+ arg_root = optarg;
+ break;
+
case 'c':
arg_cursor = optarg;
break;
break;
case ARG_INTERVAL:
- r = parse_usec(optarg, &arg_interval);
+ r = parse_sec(optarg, &arg_interval);
if (r < 0 || arg_interval <= 0) {
log_error("Failed to parse sealing key change interval: %s", optarg);
return -EINVAL;
break;
case 'u':
- arg_unit = optarg;
- arg_unit_system = true;
+ r = strv_extend(&arg_system_units, optarg);
+ if (r < 0)
+ return log_oom();
break;
case ARG_USER_UNIT:
- arg_unit = optarg;
- arg_unit_system = false;
+ r = strv_extend(&arg_user_units, optarg);
+ if (r < 0)
+ return log_oom();
break;
case '?':
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;
if (streq(*i, "+"))
r = sd_journal_add_disjunction(j);
else if (path_is_absolute(*i)) {
- char _cleanup_free_ *p, *t = NULL;
+ _cleanup_free_ char *p, *t = NULL;
const char *path;
struct stat st;
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 not a device node, regular file or is not executable: %s", *i);
+ log_error("File is neither a device node, nor regular file, nor executable: %s", *i);
return -EINVAL;
}
}
static int add_this_boot(sd_journal *j) {
- char match[9+32+1] = "_BOOT_ID=";
- sd_id128_t boot_id;
- int r;
+ if (!arg_this_boot)
+ return 0;
+
+ return add_match_this_boot(j);
+}
+static int add_dmesg(sd_journal *j) {
+ int r;
assert(j);
- if (!arg_this_boot)
+ if (!arg_dmesg)
return 0;
- r = sd_id128_get_boot(&boot_id);
+ r = sd_journal_add_match(j, "_TRANSPORT=kernel", strlen("_TRANSPORT=kernel"));
if (r < 0) {
- log_error("Failed to get boot id: %s", strerror(-r));
+ log_error("Failed to add match: %s", strerror(-r));
return r;
}
- sd_id128_to_string(boot_id, match + 9);
- r = sd_journal_add_match(j, match, strlen(match));
- if (r < 0) {
- log_error("Failed to add match: %s", strerror(-r));
+ r = sd_journal_add_conjunction(j);
+ if (r < 0)
return r;
- }
return 0;
}
-static int add_unit(sd_journal *j) {
- _cleanup_free_ char *m = NULL, *u = NULL;
+static int add_units(sd_journal *j) {
+ _cleanup_free_ char *u = NULL;
int r;
+ char **i;
assert(j);
- if (isempty(arg_unit))
- return 0;
+ STRV_FOREACH(i, arg_system_units) {
+ u = unit_name_mangle(*i);
+ if (!u)
+ return log_oom();
+ r = add_matches_for_unit(j, u);
+ if (r < 0)
+ return r;
+ r = sd_journal_add_disjunction(j);
+ if (r < 0)
+ return r;
+ }
- u = unit_name_mangle(arg_unit);
- if (!u)
- return log_oom();
+ STRV_FOREACH(i, arg_user_units) {
+ u = unit_name_mangle(*i);
+ if (!u)
+ return log_oom();
- if (arg_unit_system)
- r = add_matches_for_unit(j, u);
- 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;
+
+ }
+
+ r = sd_journal_add_conjunction(j);
if (r < 0)
return r;
static int add_priorities(sd_journal *j) {
char match[] = "PRIORITY=0";
int i, r;
-
assert(j);
if (arg_priorities == 0xFF)
}
}
+ r = sd_journal_add_conjunction(j);
+ if (r < 0)
+ return r;
+
return 0;
}
fprintf(stderr,
ANSI_HIGHLIGHT_OFF "\n"
"The sealing key is automatically changed every %s.\n",
- format_timespan(tsb, sizeof(tsb), arg_interval));
+ format_timespan(tsb, sizeof(tsb), arg_interval, 0));
hn = gethostname_malloc();
if (hn) {
- hostname_cleanup(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));
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));
+ 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));
+ format_timespan(c, sizeof(c), last - first, 0));
else
log_info("=> No sealing yet, no entries in file.");
}
return r;
}
-static int access_check(void) {
-
#ifdef HAVE_ACL
- if (access("/var/log/journal", F_OK) < 0 && geteuid() != 0 && in_group("systemd-journal") <= 0) {
- log_error("Unprivileged users can't see messages unless persistent log storage is enabled. Users in the group 'systemd-journal' can always see messages.");
- return -EACCES;
+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 (!arg_quiet && geteuid() != 0 && in_group("systemd-journal") <= 0)
- log_warning("Showing user generated messages only. Users in the group 'systemd-journal' can see all messages. Pass -q to turn this notice off.");
-#else
- if (geteuid() != 0 && in_group("systemd-journal") <= 0) {
- log_error("No access to messages. Only users in the group 'systemd-journal' can see messages.");
- return -EACCES;
+ 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);
+ }
}
-#endif
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;
- sd_journal _cleanup_journal_close_ *j = NULL;
+ _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;
goto finish;
}
- if (arg_action == ACTION_LIST_CATALOG) {
- r = catalog_list(stdout);
- if (r < 0)
- log_error("Failed to list catalog: %s", strerror(-r));
- 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));
+ }
- if (arg_action == ACTION_UPDATE_CATALOG) {
- r = catalog_update();
goto finish;
}
- r = access_check();
- if (r < 0)
- return EXIT_FAILURE;
-
if (arg_directory)
- r = sd_journal_open_directory(&j, arg_directory, 0);
+ r = sd_journal_open_directory(&j, arg_directory, arg_journal_type);
else
- r = sd_journal_open(&j, arg_merge ? 0 : SD_JOURNAL_LOCAL_ONLY);
+ r = sd_journal_open(&j, !arg_merge*SD_JOURNAL_LOCAL_ONLY + arg_journal_type);
if (r < 0) {
log_error("Failed to open journal: %s", 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 (r < 0)
return EXIT_FAILURE;
- r = add_unit(j);
+ r = add_dmesg(j);
if (r < 0)
return EXIT_FAILURE;
- r = add_matches(j, argv + optind);
+ r = add_units(j);
+ strv_free(arg_system_units);
+ strv_free(arg_user_units);
+
if (r < 0)
return EXIT_FAILURE;
if (r < 0)
return EXIT_FAILURE;
+ r = add_matches(j, argv + optind);
+ if (r < 0)
+ return EXIT_FAILURE;
+
/* Opening the fd now means the first sd_journal_wait() will actually wait */
r = sd_journal_get_fd(j);
if (r < 0)
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));
log_error("Failed to iterate through journal: %s", strerror(-r));
goto finish;
}
+ if (r == 0)
+ break;
}
- if (r == 0)
- break;
-
if (arg_until_set && !arg_reverse) {
usec_t usec;
if (!arg_merge) {
sd_id128_t boot_id;
+ const char *color_on = on_tty() ? ANSI_HIGHLIGHT_ON : "",
+ *color_off = on_tty() ? ANSI_HIGHLIGHT_OFF : "";
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(ANSI_HIGHLIGHT_ON "-- Reboot --" ANSI_HIGHLIGHT_OFF "\n");
+ printf("%s-- Reboot --%s\n", color_on, color_off);
previous_boot_id = boot_id;
previous_boot_id_valid = true;
arg_catalog * OUTPUT_CATALOG;
r = output_journal(stdout, j, arg_output, 0, flags);
- if (r < 0 || ferror(stdout))
+ need_seek = true;
+ if (r == -EADDRNOTAVAIL)
+ break;
+ else if (r < 0 || ferror(stdout))
goto finish;
- need_seek = true;
n_shown++;
}