[thirdparty/systemd.git] / src / analyze / analyze-time-data.c

/* SPDX-License-Identifier: LGPL-2.1-or-later */

#include "analyze-time-data.h"
#include "analyze.h"
#include "bus-error.h"
#include "bus-locator.h"
#include "bus-map-properties.h"
#include "bus-unit-util.h"
#include "memory-util.h"
#include "special.h"
#include "strv.h"

static void subtract_timestamp(usec_t *a, usec_t b) {
        assert(a);

        if (*a > 0) {
                assert(*a >= b);
                *a -= b;
        }
}

static int log_not_finished(usec_t finish_time) {
        return log_error_errno(SYNTHETIC_ERRNO(EINPROGRESS),
                               "Bootup is not yet finished (org.freedesktop.systemd1.Manager.FinishTimestampMonotonic=%"PRIu64").\n"
                               "Please try again later.\n"
                               "Hint: Use 'systemctl%s list-jobs' to see active jobs",
                               finish_time,
                               arg_runtime_scope == RUNTIME_SCOPE_SYSTEM ? "" : " --user");
}

int acquire_boot_times(sd_bus *bus, bool require_finished, BootTimes **ret) {
        static const struct bus_properties_map property_map[] = {
                { "FirmwareTimestampMonotonic",               "t", NULL, offsetof(BootTimes, firmware_time)                 },
                { "LoaderTimestampMonotonic",                 "t", NULL, offsetof(BootTimes, loader_time)                   },
                { "KernelTimestamp",                          "t", NULL, offsetof(BootTimes, kernel_time)                   },
                { "InitRDTimestampMonotonic",                 "t", NULL, offsetof(BootTimes, initrd_time)                   },
                { "UserspaceTimestampMonotonic",              "t", NULL, offsetof(BootTimes, userspace_time)                },
                { "FinishTimestampMonotonic",                 "t", NULL, offsetof(BootTimes, finish_time)                   },
                { "SecurityStartTimestampMonotonic",          "t", NULL, offsetof(BootTimes, security_start_time)           },
                { "SecurityFinishTimestampMonotonic",         "t", NULL, offsetof(BootTimes, security_finish_time)          },
                { "SoftRebootStartTimestampMonotonic",        "t", NULL, offsetof(BootTimes, softreboot_start_time)         },
                { "GeneratorsStartTimestampMonotonic",        "t", NULL, offsetof(BootTimes, generators_start_time)         },
                { "GeneratorsFinishTimestampMonotonic",       "t", NULL, offsetof(BootTimes, generators_finish_time)        },
                { "UnitsLoadStartTimestampMonotonic",         "t", NULL, offsetof(BootTimes, unitsload_start_time)          },
                { "UnitsLoadFinishTimestampMonotonic",        "t", NULL, offsetof(BootTimes, unitsload_finish_time)         },
                { "InitRDSecurityStartTimestampMonotonic",    "t", NULL, offsetof(BootTimes, initrd_security_start_time)    },
                { "InitRDSecurityFinishTimestampMonotonic",   "t", NULL, offsetof(BootTimes, initrd_security_finish_time)   },
                { "InitRDGeneratorsStartTimestampMonotonic",  "t", NULL, offsetof(BootTimes, initrd_generators_start_time)  },
                { "InitRDGeneratorsFinishTimestampMonotonic", "t", NULL, offsetof(BootTimes, initrd_generators_finish_time) },
                { "InitRDUnitsLoadStartTimestampMonotonic",   "t", NULL, offsetof(BootTimes, initrd_unitsload_start_time)   },
                { "InitRDUnitsLoadFinishTimestampMonotonic",  "t", NULL, offsetof(BootTimes, initrd_unitsload_finish_time)  },
                {},
        };
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        static BootTimes times;
        static bool cached = false;
        int r;

        if (cached) {
                if (require_finished && times.finish_time <= 0)
                        return log_not_finished(times.finish_time);

                if (ret)
                        *ret = &times;
                return 0;
        }

        assert_cc(sizeof(usec_t) == sizeof(uint64_t));

        r = bus_map_all_properties(
                        bus,
                        "org.freedesktop.systemd1",
                        "/org/freedesktop/systemd1",
                        property_map,
                        BUS_MAP_STRDUP,
                        &error,
                        NULL,
                        &times);
        if (r < 0)
                return log_error_errno(r, "Failed to get timestamp properties: %s", bus_error_message(&error, r));

        if (require_finished && times.finish_time <= 0)
                return log_not_finished(times.finish_time);

        if (arg_runtime_scope == RUNTIME_SCOPE_SYSTEM && timestamp_is_set(times.softreboot_start_time)) {
                /* On soft-reboot ignore kernel/firmware/initrd times as they are from the previous boot */
                times.firmware_time = times.loader_time = times.kernel_time = times.initrd_time =
                                initrd_security_start_time = initrd_security_finish_time =
                                initrd_generators_start_time = initrd_generators_finish_time =
                                initrd_unitsload_start_time = initrd_unitsload_finish_time = 0;
                times.reverse_offset = times.softreboot_start_time;

                /* Clamp all timestamps to avoid showing huge graphs */
                if (timestamp_is_set(times.finish_time))
                        subtract_timestamp(&times.finish_time, times.reverse_offset);
                subtract_timestamp(&times.userspace_time, times.reverse_offset);

                subtract_timestamp(&times.generators_start_time, times.reverse_offset);
                subtract_timestamp(&times.generators_finish_time, times.reverse_offset);

                subtract_timestamp(&times.unitsload_start_time, times.reverse_offset);
                subtract_timestamp(&times.unitsload_finish_time, times.reverse_offset);
        } else if (arg_runtime_scope == RUNTIME_SCOPE_SYSTEM && timestamp_is_set(times.security_start_time)) {
                /* security_start_time is set when systemd is not running under container environment. */
                if (times.initrd_time > 0)
                        times.kernel_done_time = times.initrd_time;
                else
                        times.kernel_done_time = times.userspace_time;
        } else {
                /*
                 * User-instance-specific or container-system-specific timestamps processing
                 * (see comment to reverse_offset in BootTimes).
                 */
                times.reverse_offset = times.userspace_time;

                times.firmware_time = times.loader_time = times.kernel_time = times.initrd_time =
                        times.userspace_time = times.security_start_time = times.security_finish_time = 0;

                if (times.finish_time > 0)
                        subtract_timestamp(&times.finish_time, times.reverse_offset);

                subtract_timestamp(&times.generators_start_time, times.reverse_offset);
                subtract_timestamp(&times.generators_finish_time, times.reverse_offset);

                subtract_timestamp(&times.unitsload_start_time, times.reverse_offset);
                subtract_timestamp(&times.unitsload_finish_time, times.reverse_offset);
        }

        cached = true;

        if (ret)
                *ret = &times;
        return 0;
}

static int bus_get_uint64_property(sd_bus *bus, const char *path, const char *interface, const char *property, uint64_t *val) {
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        int r;

        assert(bus);
        assert(path);
        assert(interface);
        assert(property);
        assert(val);

        r = sd_bus_get_property_trivial(
                        bus,
                        "org.freedesktop.systemd1",
                        path,
                        interface,
                        property,
                        &error,
                        't', val);
        if (r < 0)
                return log_error_errno(r, "Failed to parse reply: %s", bus_error_message(&error, r));

        return 0;
}

int pretty_boot_time(sd_bus *bus, char **ret) {
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        _cleanup_free_ char *path = NULL, *unit_id = NULL, *text = NULL;
        usec_t activated_time = USEC_INFINITY;
        BootTimes *t;
        int r;

        r = acquire_boot_times(bus, /* require_finished = */ true, &t);
        if (r < 0)
                return r;

        path = unit_dbus_path_from_name(SPECIAL_DEFAULT_TARGET);
        if (!path)
                return log_oom();

        r = sd_bus_get_property_string(
                        bus,
                        "org.freedesktop.systemd1",
                        path,
                        "org.freedesktop.systemd1.Unit",
                        "Id",
                        &error,
                        &unit_id);
        if (r < 0)
                log_warning_errno(r, "default.target doesn't seem to exist, ignoring: %s", bus_error_message(&error, r));

        r = bus_get_uint64_property(bus, path,
                        "org.freedesktop.systemd1.Unit",
                        "ActiveEnterTimestampMonotonic",
                        &activated_time);
        if (r < 0)
                log_warning_errno(r, "Could not get time to reach default.target, ignoring: %m");

        text = strdup("Startup finished in ");
        if (!text)
                return log_oom();

        if (timestamp_is_set(t->firmware_time) && !strextend(&text, FORMAT_TIMESPAN(t->firmware_time - t->loader_time, USEC_PER_MSEC), " (firmware) + "))
                return log_oom();
        if (timestamp_is_set(t->loader_time) && !strextend(&text, FORMAT_TIMESPAN(t->loader_time, USEC_PER_MSEC), " (loader) + "))
                return log_oom();
        if (timestamp_is_set(t->kernel_done_time) && !strextend(&text, FORMAT_TIMESPAN(t->kernel_done_time, USEC_PER_MSEC), " (kernel) + "))
                return log_oom();
        if (timestamp_is_set(t->initrd_time) && !strextend(&text, FORMAT_TIMESPAN(t->userspace_time - t->initrd_time, USEC_PER_MSEC), " (initrd) + "))
                return log_oom();
        if (timestamp_is_set(t->softreboot_start_time) && !strextend(&text, FORMAT_TIMESPAN(t->userspace_time, USEC_PER_MSEC), " (soft reboot) + "))
                return log_oom();

        if (!strextend(&text, FORMAT_TIMESPAN(t->finish_time - t->userspace_time, USEC_PER_MSEC), " (userspace) "))
                return log_oom();

        if (timestamp_is_set(t->kernel_done_time))
                if (!strextend(&text, "= ", FORMAT_TIMESPAN(t->firmware_time + t->finish_time, USEC_PER_MSEC),  " "))
                        return log_oom();

        if (unit_id && timestamp_is_set(activated_time)) {
                usec_t base;

                /* On soft-reboot times are clamped to avoid showing huge graphs */
                if (timestamp_is_set(t->softreboot_start_time) && timestamp_is_set(t->userspace_time))
                        base = t->userspace_time + t->reverse_offset;
                else
                        base = timestamp_is_set(t->userspace_time) ? t->userspace_time : t->reverse_offset;

                if (!strextend(&text, "\n", unit_id, " reached after ", FORMAT_TIMESPAN(activated_time - base, USEC_PER_MSEC), " in userspace."))
                        return log_oom();

        } else if (unit_id && activated_time == 0) {

                if (!strextend(&text, "\n", unit_id, " was never reached."))
                        return log_oom();

        } else if (unit_id && activated_time == USEC_INFINITY) {

                if (!strextend(&text, "\nCould not get time to reach ", unit_id, "."))
                        return log_oom();

        } else if (!unit_id) {

                if (!strextend(&text, "\ncould not find default.target."))
                        return log_oom();
        }

        *ret = TAKE_PTR(text);
        return 0;
}

void unit_times_clear(UnitTimes *t) {
        if (!t)
                return;

        FOREACH_ARRAY(d, t->deps, ELEMENTSOF(t->deps))
                *d = strv_free(*d);

        t->name = mfree(t->name);
}

UnitTimes* unit_times_free_array(UnitTimes *t) {
        if (!t)
                return NULL;

        for (UnitTimes *p = t; p->has_data; p++)
                unit_times_clear(p);

        return mfree(t);
}

DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(UnitTimes*, unit_times_clear, NULL);

int acquire_time_data(sd_bus *bus, bool require_finished, UnitTimes **out) {
        static const struct bus_properties_map property_map[] = {
                { "InactiveExitTimestampMonotonic",  "t",  NULL, offsetof(UnitTimes, activating)           },
                { "ActiveEnterTimestampMonotonic",   "t",  NULL, offsetof(UnitTimes, activated)            },
                { "ActiveExitTimestampMonotonic",    "t",  NULL, offsetof(UnitTimes, deactivating)         },
                { "InactiveEnterTimestampMonotonic", "t",  NULL, offsetof(UnitTimes, deactivated)          },
                { "After",                           "as", NULL, offsetof(UnitTimes, deps[UNIT_AFTER])     },
                { "Before",                          "as", NULL, offsetof(UnitTimes, deps[UNIT_BEFORE])    },
                { "Requires",                        "as", NULL, offsetof(UnitTimes, deps[UNIT_REQUIRES])  },
                { "Requisite",                       "as", NULL, offsetof(UnitTimes, deps[UNIT_REQUISITE]) },
                { "Wants",                           "as", NULL, offsetof(UnitTimes, deps[UNIT_WANTS])     },
                { "Conflicts",                       "as", NULL, offsetof(UnitTimes, deps[UNIT_CONFLICTS]) },
                { "Upholds",                         "as", NULL, offsetof(UnitTimes, deps[UNIT_UPHOLDS])   },
                {},
        };
        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        _cleanup_(unit_times_free_arrayp) UnitTimes *unit_times = NULL;
        BootTimes *boot_times;
        size_t c = 0;
        UnitInfo u;
        int r;

        r = acquire_boot_times(bus, require_finished, &boot_times);
        if (r < 0)
                return r;

        r = bus_call_method(bus, bus_systemd_mgr, "ListUnits", &error, &reply, NULL);
        if (r < 0)
                return log_error_errno(r, "Failed to list units: %s", bus_error_message(&error, r));

        r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)");
        if (r < 0)
                return bus_log_parse_error(r);

        while ((r = bus_parse_unit_info(reply, &u)) > 0) {
                _cleanup_(unit_times_clearp) UnitTimes *t = NULL;

                if (!GREEDY_REALLOC0(unit_times, c + 2))
                        return log_oom();

                /* t initially has pointers zeroed by the allocation, and unit_times_clearp will have zeroed
                 * them if the entry is being reused. */
                t = &unit_times[c];

                assert_cc(sizeof(usec_t) == sizeof(uint64_t));

                r = bus_map_all_properties(
                                bus,
                                "org.freedesktop.systemd1",
                                u.unit_path,
                                property_map,
                                BUS_MAP_STRDUP,
                                &error,
                                NULL,
                                t);
                if (r < 0)
                        return log_error_errno(r, "Failed to get timestamp properties of unit %s: %s",
                                               u.id, bus_error_message(&error, r));

                /* Activated in the previous soft-reboot iteration? Ignore it, we want new activations */
                if ((t->activated > 0 && t->activated < boot_times->softreboot_start_time) ||
                    (t->activating > 0 && t->activating < boot_times->softreboot_start_time))
                        continue;

                subtract_timestamp(&t->activating, boot_times->reverse_offset);
                subtract_timestamp(&t->activated, boot_times->reverse_offset);

                /* If the last deactivation was in the previous soft-reboot, ignore it */
                if (timestamp_is_set(boot_times->softreboot_start_time)) {
                        if (t->deactivating < boot_times->reverse_offset)
                                t->deactivating = 0;
                        else
                                subtract_timestamp(&t->deactivating, boot_times->reverse_offset);
                        if (t->deactivated < boot_times->reverse_offset)
                                t->deactivated = 0;
                        else
                                subtract_timestamp(&t->deactivated, boot_times->reverse_offset);
                } else {
                        subtract_timestamp(&t->deactivating, boot_times->reverse_offset);
                        subtract_timestamp(&t->deactivated, boot_times->reverse_offset);
                }

                if (t->activated >= t->activating)
                        t->time = t->activated - t->activating;
                else if (t->deactivated >= t->activating)
                        t->time = t->deactivated - t->activating;
                else
                        t->time = 0;

                if (t->activating == 0)
                        continue;

                t->name = strdup(u.id);
                if (!t->name)
                        return log_oom();

                t->has_data = true;
                /* Prevent destructor from running on t reference. */
                TAKE_PTR(t);
                c++;
        }
        if (r < 0)
                return bus_log_parse_error(r);

        *out = TAKE_PTR(unit_times);
        return c;
}
Commit	Line	Data
113dd9cb LP	1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
113dd9cb LP	2
113dd9cb	3	#include "analyze-time-data.h"
ebaf5549	4	#include "analyze.h"
113dd9cb LP	5	#include "bus-error.h"
	6	#include "bus-locator.h"
	7	#include "bus-map-properties.h"
	8	#include "bus-unit-util.h"
ebaf5549	9	#include "memory-util.h"
ba474dad	10	#include "special.h"
ebaf5549	11	#include "strv.h"
113dd9cb LP	12
	13	static void subtract_timestamp(usec_t *a, usec_t b) {
	14	assert(a);
	15
	16	if (*a > 0) {
	17	assert(*a >= b);
	18	*a -= b;
	19	}
	20	}
	21
63d7632d YW	22	static int log_not_finished(usec_t finish_time) {
	23	return log_error_errno(SYNTHETIC_ERRNO(EINPROGRESS),
	24	"Bootup is not yet finished (org.freedesktop.systemd1.Manager.FinishTimestampMonotonic=%"PRIu64").\n"
	25	"Please try again later.\n"
	26	"Hint: Use 'systemctl%s list-jobs' to see active jobs",
	27	finish_time,
	28	arg_runtime_scope == RUNTIME_SCOPE_SYSTEM ? "" : " --user");
	29	}
	30
	31	int acquire_boot_times(sd_bus bus, bool require_finished, BootTimes *ret) {
113dd9cb LP	32	static const struct bus_properties_map property_map[] = {
	33	{ "FirmwareTimestampMonotonic", "t", NULL, offsetof(BootTimes, firmware_time) },
	34	{ "LoaderTimestampMonotonic", "t", NULL, offsetof(BootTimes, loader_time) },
	35	{ "KernelTimestamp", "t", NULL, offsetof(BootTimes, kernel_time) },
	36	{ "InitRDTimestampMonotonic", "t", NULL, offsetof(BootTimes, initrd_time) },
	37	{ "UserspaceTimestampMonotonic", "t", NULL, offsetof(BootTimes, userspace_time) },
	38	{ "FinishTimestampMonotonic", "t", NULL, offsetof(BootTimes, finish_time) },
	39	{ "SecurityStartTimestampMonotonic", "t", NULL, offsetof(BootTimes, security_start_time) },
	40	{ "SecurityFinishTimestampMonotonic", "t", NULL, offsetof(BootTimes, security_finish_time) },
7addfba9	41	{ "SoftRebootStartTimestampMonotonic", "t", NULL, offsetof(BootTimes, softreboot_start_time) },
113dd9cb LP	42	{ "GeneratorsStartTimestampMonotonic", "t", NULL, offsetof(BootTimes, generators_start_time) },
	43	{ "GeneratorsFinishTimestampMonotonic", "t", NULL, offsetof(BootTimes, generators_finish_time) },
	44	{ "UnitsLoadStartTimestampMonotonic", "t", NULL, offsetof(BootTimes, unitsload_start_time) },
	45	{ "UnitsLoadFinishTimestampMonotonic", "t", NULL, offsetof(BootTimes, unitsload_finish_time) },
	46	{ "InitRDSecurityStartTimestampMonotonic", "t", NULL, offsetof(BootTimes, initrd_security_start_time) },
	47	{ "InitRDSecurityFinishTimestampMonotonic", "t", NULL, offsetof(BootTimes, initrd_security_finish_time) },
	48	{ "InitRDGeneratorsStartTimestampMonotonic", "t", NULL, offsetof(BootTimes, initrd_generators_start_time) },
	49	{ "InitRDGeneratorsFinishTimestampMonotonic", "t", NULL, offsetof(BootTimes, initrd_generators_finish_time) },
	50	{ "InitRDUnitsLoadStartTimestampMonotonic", "t", NULL, offsetof(BootTimes, initrd_unitsload_start_time) },
	51	{ "InitRDUnitsLoadFinishTimestampMonotonic", "t", NULL, offsetof(BootTimes, initrd_unitsload_finish_time) },
	52	{},
	53	};
	54	_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
	55	static BootTimes times;
	56	static bool cached = false;
	57	int r;
	58
63d7632d YW	59	if (cached) {
	60	if (require_finished && times.finish_time <= 0)
	61	return log_not_finished(times.finish_time);
	62
	63	if (ret)
	64	*ret = ×
	65	return 0;
	66	}
113dd9cb LP	67
	68	assert_cc(sizeof(usec_t) == sizeof(uint64_t));
	69
	70	r = bus_map_all_properties(
	71	bus,
	72	"org.freedesktop.systemd1",
	73	"/org/freedesktop/systemd1",
	74	property_map,
	75	BUS_MAP_STRDUP,
	76	&error,
	77	NULL,
	78	&times);
	79	if (r < 0)
	80	return log_error_errno(r, "Failed to get timestamp properties: %s", bus_error_message(&error, r));
	81
63d7632d YW	82	if (require_finished && times.finish_time <= 0)
63d7632d YW	83	return log_not_finished(times.finish_time);
113dd9cb	84
e6bd341e	85	if (arg_runtime_scope == RUNTIME_SCOPE_SYSTEM && timestamp_is_set(times.softreboot_start_time)) {
7addfba9	86	/* On soft-reboot ignore kernel/firmware/initrd times as they are from the previous boot */
05626b27 LB	87	times.firmware_time = times.loader_time = times.kernel_time = times.initrd_time =
	88	initrd_security_start_time = initrd_security_finish_time =
	89	initrd_generators_start_time = initrd_generators_finish_time =
	90	initrd_unitsload_start_time = initrd_unitsload_finish_time = 0;
e6bd341e LB	91	times.reverse_offset = times.softreboot_start_time;
	92
	93	/* Clamp all timestamps to avoid showing huge graphs */
	94	if (timestamp_is_set(times.finish_time))
	95	subtract_timestamp(&times.finish_time, times.reverse_offset);
	96	subtract_timestamp(&times.userspace_time, times.reverse_offset);
	97
	98	subtract_timestamp(&times.generators_start_time, times.reverse_offset);
	99	subtract_timestamp(&times.generators_finish_time, times.reverse_offset);
	100
	101	subtract_timestamp(&times.unitsload_start_time, times.reverse_offset);
	102	subtract_timestamp(&times.unitsload_finish_time, times.reverse_offset);
	103	} else if (arg_runtime_scope == RUNTIME_SCOPE_SYSTEM && timestamp_is_set(times.security_start_time)) {
113dd9cb LP	104	/* security_start_time is set when systemd is not running under container environment. */
	105	if (times.initrd_time > 0)
	106	times.kernel_done_time = times.initrd_time;
	107	else
	108	times.kernel_done_time = times.userspace_time;
	109	} else {
	110	/*
	111	* User-instance-specific or container-system-specific timestamps processing
	112	* (see comment to reverse_offset in BootTimes).
	113	*/
	114	times.reverse_offset = times.userspace_time;
	115
	116	times.firmware_time = times.loader_time = times.kernel_time = times.initrd_time =
	117	times.userspace_time = times.security_start_time = times.security_finish_time = 0;
	118
63d7632d YW	119	if (times.finish_time > 0)
63d7632d YW	120	subtract_timestamp(&times.finish_time, times.reverse_offset);
113dd9cb LP	121
	122	subtract_timestamp(&times.generators_start_time, times.reverse_offset);
	123	subtract_timestamp(&times.generators_finish_time, times.reverse_offset);
	124
	125	subtract_timestamp(&times.unitsload_start_time, times.reverse_offset);
	126	subtract_timestamp(&times.unitsload_finish_time, times.reverse_offset);
	127	}
	128
	129	cached = true;
	130
63d7632d YW	131	if (ret)
63d7632d YW	132	*ret = ×
113dd9cb LP	133	return 0;
	134	}
	135
ba474dad LP	136	static int bus_get_uint64_property(sd_bus bus, const char path, const char interface, const char property, uint64_t *val) {
	137	_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
	138	int r;
	139
	140	assert(bus);
	141	assert(path);
	142	assert(interface);
	143	assert(property);
	144	assert(val);
	145
	146	r = sd_bus_get_property_trivial(
	147	bus,
	148	"org.freedesktop.systemd1",
	149	path,
	150	interface,
	151	property,
	152	&error,
	153	't', val);
	154	if (r < 0)
	155	return log_error_errno(r, "Failed to parse reply: %s", bus_error_message(&error, r));
	156
	157	return 0;
	158	}
	159
	160	int pretty_boot_time(sd_bus bus, char *ret) {
dc4864dd LP	161	_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
	162	_cleanup_free_ char path = NULL, unit_id = NULL, *text = NULL;
	163	usec_t activated_time = USEC_INFINITY;
ba474dad	164	BootTimes *t;
ba474dad	165	int r;
ba474dad	166
63d7632d	167	r = acquire_boot_times(bus, /* require_finished = */ true, &t);
ba474dad LP	168	if (r < 0)
	169	return r;
	170
	171	path = unit_dbus_path_from_name(SPECIAL_DEFAULT_TARGET);
	172	if (!path)
	173	return log_oom();
	174
	175	r = sd_bus_get_property_string(
	176	bus,
	177	"org.freedesktop.systemd1",
	178	path,
	179	"org.freedesktop.systemd1.Unit",
	180	"Id",
	181	&error,
	182	&unit_id);
dc4864dd LP	183	if (r < 0)
dc4864dd LP	184	log_warning_errno(r, "default.target doesn't seem to exist, ignoring: %s", bus_error_message(&error, r));
ba474dad LP	185
	186	r = bus_get_uint64_property(bus, path,
	187	"org.freedesktop.systemd1.Unit",
	188	"ActiveEnterTimestampMonotonic",
	189	&activated_time);
dc4864dd LP	190	if (r < 0)
dc4864dd LP	191	log_warning_errno(r, "Could not get time to reach default.target, ignoring: %m");
ba474dad	192
dc4864dd LP	193	text = strdup("Startup finished in ");
	194	if (!text)
	195	return log_oom();
ba474dad	196
7bbfcf64	197	if (timestamp_is_set(t->firmware_time) && !strextend(&text, FORMAT_TIMESPAN(t->firmware_time - t->loader_time, USEC_PER_MSEC), " (firmware) + "))
dc4864dd	198	return log_oom();
7bbfcf64	199	if (timestamp_is_set(t->loader_time) && !strextend(&text, FORMAT_TIMESPAN(t->loader_time, USEC_PER_MSEC), " (loader) + "))
dc4864dd	200	return log_oom();
7bbfcf64	201	if (timestamp_is_set(t->kernel_done_time) && !strextend(&text, FORMAT_TIMESPAN(t->kernel_done_time, USEC_PER_MSEC), " (kernel) + "))
dc4864dd	202	return log_oom();
7bbfcf64	203	if (timestamp_is_set(t->initrd_time) && !strextend(&text, FORMAT_TIMESPAN(t->userspace_time - t->initrd_time, USEC_PER_MSEC), " (initrd) + "))
dc4864dd	204	return log_oom();
e6bd341e	205	if (timestamp_is_set(t->softreboot_start_time) && !strextend(&text, FORMAT_TIMESPAN(t->userspace_time, USEC_PER_MSEC), " (soft reboot) + "))
7addfba9	206	return log_oom();
dc4864dd LP	207
	208	if (!strextend(&text, FORMAT_TIMESPAN(t->finish_time - t->userspace_time, USEC_PER_MSEC), " (userspace) "))
	209	return log_oom();
ba474dad	210
7bbfcf64	211	if (timestamp_is_set(t->kernel_done_time))
dc4864dd LP	212	if (!strextend(&text, "= ", FORMAT_TIMESPAN(t->firmware_time + t->finish_time, USEC_PER_MSEC), " "))
dc4864dd LP	213	return log_oom();
ba474dad LP	214
ba474dad LP	215	if (unit_id && timestamp_is_set(activated_time)) {
e6bd341e LB	216	usec_t base;
	217
	218	/* On soft-reboot times are clamped to avoid showing huge graphs */
	219	if (timestamp_is_set(t->softreboot_start_time) && timestamp_is_set(t->userspace_time))
	220	base = t->userspace_time + t->reverse_offset;
	221	else
	222	base = timestamp_is_set(t->userspace_time) ? t->userspace_time : t->reverse_offset;
ba474dad	223
dc4864dd LP	224	if (!strextend(&text, "\n", unit_id, " reached after ", FORMAT_TIMESPAN(activated_time - base, USEC_PER_MSEC), " in userspace."))
	225	return log_oom();
	226
	227	} else if (unit_id && activated_time == 0) {
	228
	229	if (!strextend(&text, "\n", unit_id, " was never reached."))
	230	return log_oom();
	231
	232	} else if (unit_id && activated_time == USEC_INFINITY) {
	233
	234	if (!strextend(&text, "\nCould not get time to reach ", unit_id, "."))
	235	return log_oom();
	236
	237	} else if (!unit_id) {
	238
	239	if (!strextend(&text, "\ncould not find default.target."))
	240	return log_oom();
	241	}
ba474dad	242
dc4864dd	243	*ret = TAKE_PTR(text);
ba474dad LP	244	return 0;
	245	}
	246
ebaf5549 JL	247	void unit_times_clear(UnitTimes *t) {
	248	if (!t)
	249	return;
	250
	251	FOREACH_ARRAY(d, t->deps, ELEMENTSOF(t->deps))
	252	d = strv_free(d);
	253
	254	t->name = mfree(t->name);
	255	}
	256
113dd9cb LP	257	UnitTimes* unit_times_free_array(UnitTimes *t) {
	258	if (!t)
	259	return NULL;
	260
	261	for (UnitTimes *p = t; p->has_data; p++)
ebaf5549	262	unit_times_clear(p);
113dd9cb LP	263
	264	return mfree(t);
	265	}
	266
ebaf5549 JL	267	DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(UnitTimes*, unit_times_clear, NULL);
ebaf5549 JL	268
63d7632d	269	int acquire_time_data(sd_bus bus, bool require_finished, UnitTimes *out) {
113dd9cb	270	static const struct bus_properties_map property_map[] = {
ebaf5549 JL	271	{ "InactiveExitTimestampMonotonic", "t", NULL, offsetof(UnitTimes, activating) },
	272	{ "ActiveEnterTimestampMonotonic", "t", NULL, offsetof(UnitTimes, activated) },
	273	{ "ActiveExitTimestampMonotonic", "t", NULL, offsetof(UnitTimes, deactivating) },
	274	{ "InactiveEnterTimestampMonotonic", "t", NULL, offsetof(UnitTimes, deactivated) },
	275	{ "After", "as", NULL, offsetof(UnitTimes, deps[UNIT_AFTER]) },
	276	{ "Before", "as", NULL, offsetof(UnitTimes, deps[UNIT_BEFORE]) },
	277	{ "Requires", "as", NULL, offsetof(UnitTimes, deps[UNIT_REQUIRES]) },
	278	{ "Requisite", "as", NULL, offsetof(UnitTimes, deps[UNIT_REQUISITE]) },
	279	{ "Wants", "as", NULL, offsetof(UnitTimes, deps[UNIT_WANTS]) },
	280	{ "Conflicts", "as", NULL, offsetof(UnitTimes, deps[UNIT_CONFLICTS]) },
	281	{ "Upholds", "as", NULL, offsetof(UnitTimes, deps[UNIT_UPHOLDS]) },
113dd9cb LP	282	{},
	283	};
	284	_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
	285	_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
	286	_cleanup_(unit_times_free_arrayp) UnitTimes *unit_times = NULL;
63d7632d	287	BootTimes *boot_times;
113dd9cb LP	288	size_t c = 0;
	289	UnitInfo u;
	290	int r;
	291
63d7632d	292	r = acquire_boot_times(bus, require_finished, &boot_times);
113dd9cb LP	293	if (r < 0)
	294	return r;
	295
	296	r = bus_call_method(bus, bus_systemd_mgr, "ListUnits", &error, &reply, NULL);
	297	if (r < 0)
	298	return log_error_errno(r, "Failed to list units: %s", bus_error_message(&error, r));
	299
	300	r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)");
	301	if (r < 0)
	302	return bus_log_parse_error(r);
	303
	304	while ((r = bus_parse_unit_info(reply, &u)) > 0) {
ebaf5549	305	_cleanup_(unit_times_clearp) UnitTimes *t = NULL;
113dd9cb	306
ebaf5549	307	if (!GREEDY_REALLOC0(unit_times, c + 2))
113dd9cb LP	308	return log_oom();
113dd9cb LP	309
ebaf5549 JL	310	/* t initially has pointers zeroed by the allocation, and unit_times_clearp will have zeroed
ebaf5549 JL	311	* them if the entry is being reused. */
113dd9cb	312	t = &unit_times[c];
113dd9cb LP	313
	314	assert_cc(sizeof(usec_t) == sizeof(uint64_t));
	315
	316	r = bus_map_all_properties(
	317	bus,
	318	"org.freedesktop.systemd1",
	319	u.unit_path,
	320	property_map,
	321	BUS_MAP_STRDUP,
	322	&error,
	323	NULL,
	324	t);
	325	if (r < 0)
	326	return log_error_errno(r, "Failed to get timestamp properties of unit %s: %s",
	327	u.id, bus_error_message(&error, r));
	328
e6bd341e LB	329	/* Activated in the previous soft-reboot iteration? Ignore it, we want new activations */
	330	if ((t->activated > 0 && t->activated < boot_times->softreboot_start_time) \|\|
	331	(t->activating > 0 && t->activating < boot_times->softreboot_start_time))
	332	continue;
	333
113dd9cb LP	334	subtract_timestamp(&t->activating, boot_times->reverse_offset);
113dd9cb LP	335	subtract_timestamp(&t->activated, boot_times->reverse_offset);
e6bd341e LB	336
	337	/* If the last deactivation was in the previous soft-reboot, ignore it */
	338	if (timestamp_is_set(boot_times->softreboot_start_time)) {
	339	if (t->deactivating < boot_times->reverse_offset)
	340	t->deactivating = 0;
	341	else
	342	subtract_timestamp(&t->deactivating, boot_times->reverse_offset);
	343	if (t->deactivated < boot_times->reverse_offset)
	344	t->deactivated = 0;
	345	else
	346	subtract_timestamp(&t->deactivated, boot_times->reverse_offset);
	347	} else {
	348	subtract_timestamp(&t->deactivating, boot_times->reverse_offset);
	349	subtract_timestamp(&t->deactivated, boot_times->reverse_offset);
	350	}
113dd9cb LP	351
	352	if (t->activated >= t->activating)
	353	t->time = t->activated - t->activating;
	354	else if (t->deactivated >= t->activating)
	355	t->time = t->deactivated - t->activating;
	356	else
	357	t->time = 0;
	358
	359	if (t->activating == 0)
	360	continue;
	361
	362	t->name = strdup(u.id);
	363	if (!t->name)
	364	return log_oom();
	365
	366	t->has_data = true;
ebaf5549 JL	367	/* Prevent destructor from running on t reference. */
ebaf5549 JL	368	TAKE_PTR(t);
113dd9cb LP	369	c++;
	370	}
	371	if (r < 0)
	372	return bus_log_parse_error(r);
	373
	374	*out = TAKE_PTR(unit_times);
	375	return c;
	376	}