/*
* Copyright (C) 2015 ABRT team
* Copyright (C) 2015 RedHat Inc
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "libabrt.h"
#include "abrt-journal.h"
#include "xorg-utils.h"
#define ABRT_JOURNAL_XORG_WATCH_STATE_FILE VAR_STATE"/abrt-dump-journal-xorg.state"
#define XORG_CONF "xorg.conf"
#define XORG_CONF_PATH "/etc/abrt/plugins/"XORG_CONF
static void
abrt_xorg_process_list_of_crashes(GList *crashes, const char *dump_location, int flags)
{
if (crashes == NULL)
return;
GList *list;
for (list = crashes; list != NULL; list = list->next)
{
xorg_crash_info_create_dump_dir(list->data, dump_location, (flags & ABRT_XORG_WORLD_READABLE));
if (flags & ABRT_XORG_PRINT_STDOUT)
xorg_crash_info_print_crash(list->data);
if (flags & ABRT_XORG_THROTTLE_CREATION)
if (abrt_xorg_signaled_sleep(1) > 0)
break;
}
return;
}
static GList *abrt_journal_extract_xorg_crashes(abrt_journal_t *journal)
{
GList *crash_info_list = NULL;
do
{
char *line = abrt_journal_get_log_line(journal);
if (line == NULL)
error_msg_and_die(_("Cannot read journal data."));
char *p = skip_pfx(line);
if (strcmp(p, XORG_SEARCH_STRING) == 0)
{
struct xorg_crash_info *crash_info = process_xorg_bt(&abrt_journal_get_next_log_line, journal);
if (crash_info)
crash_info_list = g_list_append(crash_info_list, crash_info);
else
log_warning(_("Failed to parse Backtrace from journal"));
}
free(line);
}
while (abrt_journal_next(journal) > 0);
log_warning("Found crashes: %d", g_list_length(crash_info_list));
return crash_info_list;
}
struct watch_journald_xorg_settings
{
const char *dump_location;
int xorg_utils_flags;
};
static void abrt_journal_watch_extract_xorg_crashes(abrt_journal_watch_t *watch, void *data)
{
const struct watch_journald_xorg_settings *conf = (const struct watch_journald_xorg_settings *)data;
abrt_journal_t *journal = abrt_journal_watch_get_journal(watch);
/* Give systemd-journal one second to suck in all crash strings */
if (abrt_xorg_signaled_sleep(1) > 0)
{
abrt_journal_watch_stop(watch);
return;
}
GList *crashes = abrt_journal_extract_xorg_crashes(journal);
abrt_xorg_process_list_of_crashes(crashes, conf->dump_location, conf->xorg_utils_flags);
g_list_free_full(crashes, (GDestroyNotify)xorg_crash_info_free);
/* In case of disaster, lets make sure we won't read the journal messages */
/* again. */
abrt_journal_save_current_position(journal, ABRT_JOURNAL_XORG_WATCH_STATE_FILE);
if (g_abrt_xorg_sleep_woke_up_on_signal > 0)
abrt_journal_watch_stop(watch);
}
static void watch_journald(abrt_journal_t *journal, const char *dump_location, int flags)
{
GList *xorg_strings = NULL;
xorg_strings = g_list_prepend(xorg_strings, (gpointer)XORG_SEARCH_STRING);
struct watch_journald_xorg_settings watch_conf = {
.dump_location = dump_location,
.xorg_utils_flags = flags,
};
struct abrt_journal_watch_notify_strings notify_strings_conf = {
.decorated_cb = abrt_journal_watch_extract_xorg_crashes,
.decorated_cb_data = &watch_conf,
.strings = xorg_strings,
.blacklisted_strings = NULL,
};
abrt_journal_watch_t *watch = NULL;
if (abrt_journal_watch_new(&watch, journal, abrt_journal_watch_notify_strings, ¬ify_strings_conf) < 0)
error_msg_and_die(_("Failed to initialize systemd-journal watch"));
abrt_journal_watch_run_sync(watch);
abrt_journal_watch_free(watch);
g_list_free(xorg_strings);
}
int main(int argc, char *argv[])
{
/* I18n */
setlocale(LC_ALL, "");
#if ENABLE_NLS
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
#endif
abrt_init(argv);
/* Can't keep these strings/structs static: _() doesn't support that */
const char *program_usage_string_template = _(
"& [-vsoxtf] [-e]/[-c CURSOR] [-d DIR]/[-D]\n"
"\n"
"Extract Xorg crash from systemd-journal\n"
"\n"
"-c and -e options conflicts because both specifies the first read message.\n"
"\n"
"-e is useful only for -f because the following of journal starts by reading \n"
"the entire journal if the last seen position is not available.\n"
"\n"
"The last seen position is saved in %s\n"
"\n"
"Journal filter is required parameter and must be specified either by parameter\n"
"-j or in %s conf file.\n"
);
char program_usage_string[strlen(program_usage_string_template)
+ strlen(ABRT_JOURNAL_XORG_WATCH_STATE_FILE)
+ strlen(XORG_CONF_PATH)];
sprintf(program_usage_string, program_usage_string_template,
ABRT_JOURNAL_XORG_WATCH_STATE_FILE, XORG_CONF_PATH);
enum {
OPT_v = 1 << 0,
OPT_s = 1 << 1,
OPT_o = 1 << 2,
OPT_d = 1 << 3,
OPT_D = 1 << 4,
OPT_x = 1 << 5,
OPT_t = 1 << 6,
OPT_c = 1 << 7,
OPT_e = 1 << 8,
OPT_f = 1 << 9,
OPT_a = 1 << 10,
OPT_J = 1 << 11,
OPT_j = 1 << 12,
};
char *cursor = NULL;
char *dump_location = NULL;
char *journal_dir = NULL;
GList *journal_filters = NULL;
/* Keep enum above and order of options below in sync! */
struct options program_options[] = {
OPT__VERBOSE(&g_verbose),
OPT_BOOL( 's', NULL, NULL, _("Log to syslog")),
OPT_BOOL( 'o', NULL, NULL, _("Print found crashes on standard output")),
OPT_STRING('d', NULL, &dump_location, "DIR", _("Create new problem directory in DIR for every crash found")),
OPT_BOOL( 'D', NULL, NULL, _("Same as -d DumpLocation, DumpLocation is specified in abrt.conf")),
OPT_BOOL( 'x', NULL, NULL, _("Make the problem directory world readable")),
OPT_BOOL( 't', NULL, NULL, _("Throttle problem directory creation to 1 per second")),
OPT_STRING('c', NULL, &cursor, "CURSOR", _("Start reading systemd-journal from the CURSOR position")),
OPT_BOOL( 'e', NULL, NULL, _("Start reading systemd-journal from the end")),
OPT_BOOL( 'f', NULL, NULL, _("Follow systemd-journal from the last seen position (if available)")),
OPT_BOOL( 'a', NULL, NULL, _("Read journal files from all machines")),
OPT_STRING('J', NULL, &journal_dir, "PATH", _("Read all journal files from directory at PATH")),
OPT_LIST( 'j', NULL, &journal_filters, "FILTER", _("Journal filter e.g. '_COMM=gdm-x-session' (may be given many times)")),
OPT_END()
};
unsigned opts = parse_opts(argc, argv, program_options, program_usage_string);
export_abrt_envvars(0);
msg_prefix = g_progname;
if ((opts & OPT_s) || getenv("ABRT_SYSLOG"))
{
logmode = LOGMODE_JOURNAL;
}
if ((opts & OPT_c) && (opts & OPT_e))
error_msg_and_die(_("You need to specify either -c CURSOR or -e"));
if (opts & OPT_D)
{
if (opts & OPT_d)
show_usage_and_die(program_usage_string, program_options);
load_abrt_conf();
dump_location = g_settings_dump_location;
g_settings_dump_location = NULL;
free_abrt_conf_data();
}
int xorg_utils_flags = 0;
if ((opts & OPT_x))
xorg_utils_flags |= ABRT_XORG_WORLD_READABLE;
if ((opts & OPT_t))
xorg_utils_flags |= ABRT_XORG_THROTTLE_CREATION;
if ((opts & OPT_o))
xorg_utils_flags |= ABRT_XORG_PRINT_STDOUT;
/* get journal filters */
const char *const env_journal_filter = getenv("ABRT_DUMP_JOURNAL_XORG_DEBUG_FILTER");
bool free_filter_list_data = false;
GList *xorg_journal_filter = NULL;
if (env_journal_filter != NULL)
{
xorg_journal_filter = g_list_append(xorg_journal_filter, (gpointer)env_journal_filter);
log_debug("Using journal filter from environment variable");
}
else if (journal_filters != NULL)
{
xorg_journal_filter = journal_filters;
log_debug("Using journal filter passed by parameter -j");
}
else
{
map_string_t *settings = new_map_string();
log_notice("Loading settings from '%s'", XORG_CONF);
load_abrt_plugin_conf_file(XORG_CONF, settings);
log_debug("Loaded '%s'", XORG_CONF);
const char *conf_journal_filters = get_map_string_item_or_NULL(settings, "JournalFilters");
xorg_journal_filter = parse_list(conf_journal_filters);
/* list data will be free by g_list_free_full */
free_filter_list_data = true;
free_map_string(settings);
if (xorg_journal_filter)
log_debug("Using journal filter from conf file %s", XORG_CONF);
}
if (xorg_journal_filter == NULL)
error_msg_and_die(_("Journal filter must be specified either by parameter -j or stored in /etc/abrt/plugins/xorg.conf file"));
abrt_journal_t *journal = NULL;
if ((opts & OPT_J))
{
log_debug("Using journal files from directory '%s'", journal_dir);
if (abrt_journal_open_directory(&journal, journal_dir))
error_msg_and_die(_("Cannot initialize systemd-journal in directory '%s'"), journal_dir);
}
else
{
if (((opts & OPT_a) ? abrt_journal_new_merged : abrt_journal_new)(&journal))
error_msg_and_die(_("Cannot open systemd-journal"));
}
if (abrt_journal_set_journal_filter(journal, xorg_journal_filter) < 0)
error_msg_and_die(_("Cannot filter systemd-journal to Xorg data only"));
/* free filter list */
if (free_filter_list_data)
g_list_free_full(xorg_journal_filter, free);
else
g_list_free(xorg_journal_filter);
if ((opts & OPT_e) && abrt_journal_seek_tail(journal) < 0)
error_msg_and_die(_("Cannot seek to the end of journal"));
if ((opts & OPT_f))
{
if (!cursor)
abrt_journal_restore_position(journal, ABRT_JOURNAL_XORG_WATCH_STATE_FILE);
else if(abrt_journal_set_cursor(journal, cursor))
error_msg_and_die(_("Failed to start watch from cursor '%s'"), cursor);
watch_journald(journal, dump_location, xorg_utils_flags);
abrt_journal_save_current_position(journal, ABRT_JOURNAL_XORG_WATCH_STATE_FILE);
}
else
{
if (cursor && abrt_journal_set_cursor(journal, cursor))
error_msg_and_die(_("Failed to set systemd-journal cursor '%s'"), cursor);
/* Compatibility hack, a watch's callback gets the journal already moved
* to a next message.*/
abrt_journal_next(journal);
GList *crashes = abrt_journal_extract_xorg_crashes(journal);
abrt_xorg_process_list_of_crashes(crashes, dump_location, xorg_utils_flags);
g_list_free_full(crashes, (GDestroyNotify)xorg_crash_info_free);
}
abrt_journal_free(journal);
return EXIT_SUCCESS;
}