/* SPDX-License-Identifier: LGPL-2.1+ */ /*** This file is part of systemd. Copyright 2010-2013 Lennart Poettering Copyright 2013 Simon Peeters ***/ #include #include #include #include #include "sd-bus.h" #include "alloc-util.h" #include "analyze-verify.h" #include "bus-error.h" #include "bus-unit-util.h" #include "bus-util.h" #include "calendarspec.h" #include "glob-util.h" #include "hashmap.h" #include "locale-util.h" #include "log.h" #include "pager.h" #include "parse-util.h" #if HAVE_SECCOMP #include "seccomp-util.h" #endif #include "special.h" #include "strv.h" #include "strxcpyx.h" #include "terminal-util.h" #include "unit-name.h" #include "util.h" #include "verbs.h" #define SCALE_X (0.1 / 1000.0) /* pixels per us */ #define SCALE_Y (20.0) #define compare(a, b) (((a) > (b))? 1 : (((b) > (a))? -1 : 0)) #define svg(...) printf(__VA_ARGS__) #define svg_bar(class, x1, x2, y) \ svg(" \n", \ (class), \ SCALE_X * (x1), SCALE_Y * (y), \ SCALE_X * ((x2) - (x1)), SCALE_Y - 1.0) #define svg_text(b, x, y, format, ...) \ do { \ svg(" ", (b) ? "left" : "right", SCALE_X * (x) + (b ? 5.0 : -5.0), SCALE_Y * (y) + 14.0); \ svg(format, ## __VA_ARGS__); \ svg("\n"); \ } while (false) static enum dot { DEP_ALL, DEP_ORDER, DEP_REQUIRE } arg_dot = DEP_ALL; static char** arg_dot_from_patterns = NULL; static char** arg_dot_to_patterns = NULL; static usec_t arg_fuzz = 0; static bool arg_no_pager = false; static BusTransport arg_transport = BUS_TRANSPORT_LOCAL; static const char *arg_host = NULL; static UnitFileScope arg_scope = UNIT_FILE_SYSTEM; static bool arg_man = true; static bool arg_generators = false; struct boot_times { usec_t firmware_time; usec_t loader_time; usec_t kernel_time; usec_t kernel_done_time; usec_t initrd_time; usec_t userspace_time; usec_t finish_time; usec_t security_start_time; usec_t security_finish_time; usec_t generators_start_time; usec_t generators_finish_time; usec_t unitsload_start_time; usec_t unitsload_finish_time; /* * If we're analyzing the user instance, all timestamps will be offset * by its own start-up timestamp, which may be arbitrarily big. * With "plot", this causes arbitrarily wide output SVG files which almost * completely consist of empty space. Thus we cancel out this offset. * * This offset is subtracted from times above by acquire_boot_times(), * but it still needs to be subtracted from unit-specific timestamps * (so it is stored here for reference). */ usec_t reverse_offset; }; struct unit_times { char *name; usec_t activating; usec_t activated; usec_t deactivated; usec_t deactivating; usec_t time; }; struct host_info { char *hostname; char *kernel_name; char *kernel_release; char *kernel_version; char *os_pretty_name; char *virtualization; char *architecture; }; static int acquire_systemd_bus(sd_bus **bus) { bool user = arg_scope != UNIT_FILE_SYSTEM; return bus_connect_transport_systemd(arg_transport, arg_host, user, bus); } static int acquire_full_bus(bool *use_full_bus, sd_bus **bus) { bool user = arg_scope != UNIT_FILE_SYSTEM; if (*use_full_bus) { if (bus_connect_transport(arg_transport, arg_host, user, bus) == 0) return 0; *use_full_bus = false; } return acquire_systemd_bus(bus); } 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) { log_error("Failed to parse reply: %s", bus_error_message(&error, -r)); return r; } return 0; } static int bus_get_unit_property_strv(sd_bus *bus, const char *path, const char *property, char ***strv) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; int r; assert(bus); assert(path); assert(property); assert(strv); r = sd_bus_get_property_strv( bus, "org.freedesktop.systemd1", path, "org.freedesktop.systemd1.Unit", property, &error, strv); if (r < 0) { log_error("Failed to get unit property %s: %s", property, bus_error_message(&error, -r)); return r; } return 0; } static int compare_unit_time(const void *a, const void *b) { return compare(((struct unit_times *)b)->time, ((struct unit_times *)a)->time); } static int compare_unit_start(const void *a, const void *b) { return compare(((struct unit_times *)a)->activating, ((struct unit_times *)b)->activating); } static void free_unit_times(struct unit_times *t, unsigned n) { struct unit_times *p; for (p = t; p < t + n; p++) free(p->name); free(t); } static void subtract_timestamp(usec_t *a, usec_t b) { assert(a); if (*a > 0) { assert(*a >= b); *a -= b; } } static int acquire_boot_times(sd_bus *bus, struct boot_times **bt) { static struct boot_times times; static bool cached = false; if (cached) goto finish; assert_cc(sizeof(usec_t) == sizeof(uint64_t)); if (bus_get_uint64_property(bus, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "FirmwareTimestampMonotonic", ×.firmware_time) < 0 || bus_get_uint64_property(bus, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "LoaderTimestampMonotonic", ×.loader_time) < 0 || bus_get_uint64_property(bus, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "KernelTimestamp", ×.kernel_time) < 0 || bus_get_uint64_property(bus, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "InitRDTimestampMonotonic", ×.initrd_time) < 0 || bus_get_uint64_property(bus, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "UserspaceTimestampMonotonic", ×.userspace_time) < 0 || bus_get_uint64_property(bus, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "FinishTimestampMonotonic", ×.finish_time) < 0 || bus_get_uint64_property(bus, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "SecurityStartTimestampMonotonic", ×.security_start_time) < 0 || bus_get_uint64_property(bus, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "SecurityFinishTimestampMonotonic", ×.security_finish_time) < 0 || bus_get_uint64_property(bus, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "GeneratorsStartTimestampMonotonic", ×.generators_start_time) < 0 || bus_get_uint64_property(bus, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "GeneratorsFinishTimestampMonotonic", ×.generators_finish_time) < 0 || bus_get_uint64_property(bus, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "UnitsLoadStartTimestampMonotonic", ×.unitsload_start_time) < 0 || bus_get_uint64_property(bus, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "UnitsLoadFinishTimestampMonotonic", ×.unitsload_finish_time) < 0) return -EIO; if (times.finish_time <= 0) { log_error("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", times.finish_time, arg_scope == UNIT_FILE_SYSTEM ? "" : " --user"); return -EINPROGRESS; } if (arg_scope == UNIT_FILE_SYSTEM) { if (times.initrd_time > 0) times.kernel_done_time = times.initrd_time; else times.kernel_done_time = times.userspace_time; } else { /* * User-instance-specific timestamps processing * (see comment to reverse_offset in struct boot_times). */ times.reverse_offset = times.userspace_time; times.firmware_time = times.loader_time = times.kernel_time = times.initrd_time = times.userspace_time = 0; subtract_timestamp(×.finish_time, times.reverse_offset); subtract_timestamp(×.security_start_time, times.reverse_offset); subtract_timestamp(×.security_finish_time, times.reverse_offset); subtract_timestamp(×.generators_start_time, times.reverse_offset); subtract_timestamp(×.generators_finish_time, times.reverse_offset); subtract_timestamp(×.unitsload_start_time, times.reverse_offset); subtract_timestamp(×.unitsload_finish_time, times.reverse_offset); } cached = true; finish: *bt = × return 0; } static void free_host_info(struct host_info *hi) { if (!hi) return; free(hi->hostname); free(hi->kernel_name); free(hi->kernel_release); free(hi->kernel_version); free(hi->os_pretty_name); free(hi->virtualization); free(hi->architecture); free(hi); } DEFINE_TRIVIAL_CLEANUP_FUNC(struct host_info*, free_host_info); static int acquire_time_data(sd_bus *bus, struct unit_times **out) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; int r, c = 0; struct boot_times *boot_times = NULL; struct unit_times *unit_times = NULL; size_t size = 0; UnitInfo u; r = acquire_boot_times(bus, &boot_times); if (r < 0) goto fail; r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "ListUnits", &error, &reply, NULL); if (r < 0) { log_error("Failed to list units: %s", bus_error_message(&error, -r)); goto fail; } r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)"); if (r < 0) { bus_log_parse_error(r); goto fail; } while ((r = bus_parse_unit_info(reply, &u)) > 0) { struct unit_times *t; if (!GREEDY_REALLOC(unit_times, size, c+1)) { r = log_oom(); goto fail; } t = unit_times+c; t->name = NULL; assert_cc(sizeof(usec_t) == sizeof(uint64_t)); if (bus_get_uint64_property(bus, u.unit_path, "org.freedesktop.systemd1.Unit", "InactiveExitTimestampMonotonic", &t->activating) < 0 || bus_get_uint64_property(bus, u.unit_path, "org.freedesktop.systemd1.Unit", "ActiveEnterTimestampMonotonic", &t->activated) < 0 || bus_get_uint64_property(bus, u.unit_path, "org.freedesktop.systemd1.Unit", "ActiveExitTimestampMonotonic", &t->deactivating) < 0 || bus_get_uint64_property(bus, u.unit_path, "org.freedesktop.systemd1.Unit", "InactiveEnterTimestampMonotonic", &t->deactivated) < 0) { r = -EIO; goto fail; } subtract_timestamp(&t->activating, boot_times->reverse_offset); subtract_timestamp(&t->activated, boot_times->reverse_offset); 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) { r = log_oom(); goto fail; } c++; } if (r < 0) { bus_log_parse_error(r); goto fail; } *out = unit_times; return c; fail: free_unit_times(unit_times, (unsigned) c); return r; } static int acquire_host_info(sd_bus *bus, struct host_info **hi) { static const struct bus_properties_map hostname_map[] = { { "Hostname", "s", NULL, offsetof(struct host_info, hostname) }, { "KernelName", "s", NULL, offsetof(struct host_info, kernel_name) }, { "KernelRelease", "s", NULL, offsetof(struct host_info, kernel_release) }, { "KernelVersion", "s", NULL, offsetof(struct host_info, kernel_version) }, { "OperatingSystemPrettyName", "s", NULL, offsetof(struct host_info, os_pretty_name) }, {} }; static const struct bus_properties_map manager_map[] = { { "Virtualization", "s", NULL, offsetof(struct host_info, virtualization) }, { "Architecture", "s", NULL, offsetof(struct host_info, architecture) }, {} }; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(free_host_infop) struct host_info *host; int r; host = new0(struct host_info, 1); if (!host) return log_oom(); r = bus_map_all_properties(bus, "org.freedesktop.hostname1", "/org/freedesktop/hostname1", hostname_map, BUS_MAP_STRDUP, &error, NULL, host); if (r < 0) log_debug_errno(r, "Failed to get host information from systemd-hostnamed: %s", bus_error_message(&error, r)); r = bus_map_all_properties(bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", manager_map, BUS_MAP_STRDUP, &error, NULL, host); if (r < 0) return log_error_errno(r, "Failed to get host information from systemd: %s", bus_error_message(&error, r)); *hi = TAKE_PTR(host); return 0; } static int pretty_boot_time(sd_bus *bus, char **_buf) { char ts[FORMAT_TIMESPAN_MAX]; struct boot_times *t; static char buf[4096]; size_t size; char *ptr; int r; usec_t activated_time = USEC_INFINITY; _cleanup_free_ char* path = NULL, *unit_id = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; r = acquire_boot_times(bus, &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_error_errno(r, "default.target doesn't seem to exist: %s", bus_error_message(&error, r)); unit_id = NULL; } r = bus_get_uint64_property(bus, path, "org.freedesktop.systemd1.Unit", "ActiveEnterTimestampMonotonic", &activated_time); if (r < 0) { log_info_errno(r, "Could not get time to reach default.target. Continuing..."); activated_time = USEC_INFINITY; } ptr = buf; size = sizeof(buf); size = strpcpyf(&ptr, size, "Startup finished in "); if (t->firmware_time > 0) size = strpcpyf(&ptr, size, "%s (firmware) + ", format_timespan(ts, sizeof(ts), t->firmware_time - t->loader_time, USEC_PER_MSEC)); if (t->loader_time > 0) size = strpcpyf(&ptr, size, "%s (loader) + ", format_timespan(ts, sizeof(ts), t->loader_time, USEC_PER_MSEC)); if (t->kernel_time > 0) size = strpcpyf(&ptr, size, "%s (kernel) + ", format_timespan(ts, sizeof(ts), t->kernel_done_time, USEC_PER_MSEC)); if (t->initrd_time > 0) size = strpcpyf(&ptr, size, "%s (initrd) + ", format_timespan(ts, sizeof(ts), t->userspace_time - t->initrd_time, USEC_PER_MSEC)); size = strpcpyf(&ptr, size, "%s (userspace) ", format_timespan(ts, sizeof(ts), t->finish_time - t->userspace_time, USEC_PER_MSEC)); if (t->kernel_time > 0) strpcpyf(&ptr, size, "= %s", format_timespan(ts, sizeof(ts), t->firmware_time + t->finish_time, USEC_PER_MSEC)); if (unit_id && activated_time > 0 && activated_time != USEC_INFINITY) size = strpcpyf(&ptr, size, "\n%s reached after %s in userspace", unit_id, format_timespan(ts, sizeof(ts), activated_time - t->userspace_time, USEC_PER_MSEC)); else if (unit_id && activated_time == 0) size = strpcpyf(&ptr, size, "\n%s was never reached", unit_id); else if (unit_id && activated_time == USEC_INFINITY) size = strpcpyf(&ptr, size, "\nCould not get time to reach %s.",unit_id); else if (!unit_id) size = strpcpyf(&ptr, size, "\ncould not find default.target"); ptr = strdup(buf); if (!ptr) return log_oom(); *_buf = ptr; return 0; } static void svg_graph_box(double height, double begin, double end) { long long i; /* outside box, fill */ svg("\n", SCALE_X * (end - begin), SCALE_Y * height); for (i = ((long long) (begin / 100000)) * 100000; i <= end; i+=100000) { /* lines for each second */ if (i % 5000000 == 0) svg(" \n" " %.01fs\n", SCALE_X * i, SCALE_X * i, SCALE_Y * height, SCALE_X * i, -5.0, 0.000001 * i); else if (i % 1000000 == 0) svg(" \n" " %.01fs\n", SCALE_X * i, SCALE_X * i, SCALE_Y * height, SCALE_X * i, -5.0, 0.000001 * i); else svg(" \n", SCALE_X * i, SCALE_X * i, SCALE_Y * height); } } static int analyze_plot(int argc, char *argv[], void *userdata) { _cleanup_(free_host_infop) struct host_info *host = NULL; _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; struct unit_times *times; struct boot_times *boot; int n, m = 1, y = 0, r; bool use_full_bus = true; double width; _cleanup_free_ char *pretty_times = NULL; struct unit_times *u; r = acquire_full_bus(&use_full_bus, &bus); if (r < 0) return log_error_errno(r, "Failed to create bus connection: %m"); n = acquire_boot_times(bus, &boot); if (n < 0) return n; n = pretty_boot_time(bus, &pretty_times); if (n < 0) return n; if (use_full_bus) { n = acquire_host_info(bus, &host); if (n < 0) return n; } n = acquire_time_data(bus, ×); if (n <= 0) return n; qsort(times, n, sizeof(struct unit_times), compare_unit_start); width = SCALE_X * (boot->firmware_time + boot->finish_time); if (width < 800.0) width = 800.0; if (boot->firmware_time > boot->loader_time) m++; if (boot->loader_time > 0) { m++; if (width < 1000.0) width = 1000.0; } if (boot->initrd_time > 0) m++; if (boot->kernel_time > 0) m++; for (u = times; u < times + n; u++) { double text_start, text_width; if (u->activating < boot->userspace_time || u->activating > boot->finish_time) { u->name = mfree(u->name); continue; } /* If the text cannot fit on the left side then * increase the svg width so it fits on the right. * TODO: calculate the text width more accurately */ text_width = 8.0 * strlen(u->name); text_start = (boot->firmware_time + u->activating) * SCALE_X; if (text_width > text_start && text_width + text_start > width) width = text_width + text_start; if (u->deactivated > u->activating && u->deactivated <= boot->finish_time && u->activated == 0 && u->deactivating == 0) u->activated = u->deactivating = u->deactivated; if (u->activated < u->activating || u->activated > boot->finish_time) u->activated = boot->finish_time; if (u->deactivating < u->activated || u->activated > boot->finish_time) u->deactivating = boot->finish_time; if (u->deactivated < u->deactivating || u->deactivated > boot->finish_time) u->deactivated = boot->finish_time; m++; } svg("\n" "\n"); svg("\n"); free_unit_times(times, (unsigned) n); n = 0; return n; } static int list_dependencies_print(const char *name, unsigned int level, unsigned int branches, bool last, struct unit_times *times, struct boot_times *boot) { unsigned int i; char ts[FORMAT_TIMESPAN_MAX], ts2[FORMAT_TIMESPAN_MAX]; for (i = level; i != 0; i--) printf("%s", special_glyph(branches & (1 << (i-1)) ? TREE_VERTICAL : TREE_SPACE)); printf("%s", special_glyph(last ? TREE_RIGHT : TREE_BRANCH)); if (times) { if (times->time > 0) printf("%s%s @%s +%s%s", ansi_highlight_red(), name, format_timespan(ts, sizeof(ts), times->activating - boot->userspace_time, USEC_PER_MSEC), format_timespan(ts2, sizeof(ts2), times->time, USEC_PER_MSEC), ansi_normal()); else if (times->activated > boot->userspace_time) printf("%s @%s", name, format_timespan(ts, sizeof(ts), times->activated - boot->userspace_time, USEC_PER_MSEC)); else printf("%s", name); } else printf("%s", name); printf("\n"); return 0; } static int list_dependencies_get_dependencies(sd_bus *bus, const char *name, char ***deps) { _cleanup_free_ char *path = NULL; assert(bus); assert(name); assert(deps); path = unit_dbus_path_from_name(name); if (!path) return -ENOMEM; return bus_get_unit_property_strv(bus, path, "After", deps); } static Hashmap *unit_times_hashmap; static int list_dependencies_compare(const void *_a, const void *_b) { const char **a = (const char**) _a, **b = (const char**) _b; usec_t usa = 0, usb = 0; struct unit_times *times; times = hashmap_get(unit_times_hashmap, *a); if (times) usa = times->activated; times = hashmap_get(unit_times_hashmap, *b); if (times) usb = times->activated; return usb - usa; } static bool times_in_range(const struct unit_times *times, const struct boot_times *boot) { return times && times->activated > 0 && times->activated <= boot->finish_time; } static int list_dependencies_one(sd_bus *bus, const char *name, unsigned int level, char ***units, unsigned int branches) { _cleanup_strv_free_ char **deps = NULL; char **c; int r = 0; usec_t service_longest = 0; int to_print = 0; struct unit_times *times; struct boot_times *boot; if (strv_extend(units, name)) return log_oom(); r = list_dependencies_get_dependencies(bus, name, &deps); if (r < 0) return r; qsort_safe(deps, strv_length(deps), sizeof (char*), list_dependencies_compare); r = acquire_boot_times(bus, &boot); if (r < 0) return r; STRV_FOREACH(c, deps) { times = hashmap_get(unit_times_hashmap, *c); if (times_in_range(times, boot) && (times->activated >= service_longest || service_longest == 0)) { service_longest = times->activated; break; } } if (service_longest == 0) return r; STRV_FOREACH(c, deps) { times = hashmap_get(unit_times_hashmap, *c); if (times_in_range(times, boot) && service_longest - times->activated <= arg_fuzz) to_print++; } if (!to_print) return r; STRV_FOREACH(c, deps) { times = hashmap_get(unit_times_hashmap, *c); if (!times_in_range(times, boot) || service_longest - times->activated > arg_fuzz) continue; to_print--; r = list_dependencies_print(*c, level, branches, to_print == 0, times, boot); if (r < 0) return r; if (strv_contains(*units, *c)) { r = list_dependencies_print("...", level + 1, (branches << 1) | (to_print ? 1 : 0), true, NULL, boot); if (r < 0) return r; continue; } r = list_dependencies_one(bus, *c, level + 1, units, (branches << 1) | (to_print ? 1 : 0)); if (r < 0) return r; if (to_print == 0) break; } return 0; } static int list_dependencies(sd_bus *bus, const char *name) { _cleanup_strv_free_ char **units = NULL; char ts[FORMAT_TIMESPAN_MAX]; struct unit_times *times; int r; const char *id; _cleanup_free_ char *path = NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; struct boot_times *boot; assert(bus); path = unit_dbus_path_from_name(name); if (!path) return -ENOMEM; r = sd_bus_get_property( bus, "org.freedesktop.systemd1", path, "org.freedesktop.systemd1.Unit", "Id", &error, &reply, "s"); if (r < 0) { log_error("Failed to get ID: %s", bus_error_message(&error, -r)); return r; } r = sd_bus_message_read(reply, "s", &id); if (r < 0) return bus_log_parse_error(r); times = hashmap_get(unit_times_hashmap, id); r = acquire_boot_times(bus, &boot); if (r < 0) return r; if (times) { if (times->time) printf("%s%s +%s%s\n", ansi_highlight_red(), id, format_timespan(ts, sizeof(ts), times->time, USEC_PER_MSEC), ansi_normal()); else if (times->activated > boot->userspace_time) printf("%s @%s\n", id, format_timespan(ts, sizeof(ts), times->activated - boot->userspace_time, USEC_PER_MSEC)); else printf("%s\n", id); } return list_dependencies_one(bus, name, 0, &units, 0); } static int analyze_critical_chain(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; struct unit_times *times; unsigned int i; Hashmap *h; int n, r; r = acquire_systemd_bus(&bus); if (r < 0) return log_error_errno(r, "Failed to create bus connection: %m"); n = acquire_time_data(bus, ×); if (n <= 0) return n; h = hashmap_new(&string_hash_ops); if (!h) return log_oom(); for (i = 0; i < (unsigned) n; i++) { r = hashmap_put(h, times[i].name, ×[i]); if (r < 0) return log_error_errno(r, "Failed to add entry to hashmap: %m"); } unit_times_hashmap = h; (void) pager_open(arg_no_pager, false); puts("The time after the unit is active or started is printed after the \"@\" character.\n" "The time the unit takes to start is printed after the \"+\" character.\n"); if (argc > 1) { char **name; STRV_FOREACH(name, strv_skip(argv, 1)) list_dependencies(bus, *name); } else list_dependencies(bus, SPECIAL_DEFAULT_TARGET); h = hashmap_free(h); free_unit_times(times, (unsigned) n); return 0; } static int analyze_blame(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; struct unit_times *times; unsigned i; int n, r; r = acquire_systemd_bus(&bus); if (r < 0) return log_error_errno(r, "Failed to create bus connection: %m"); n = acquire_time_data(bus, ×); if (n <= 0) return n; qsort(times, n, sizeof(struct unit_times), compare_unit_time); (void) pager_open(arg_no_pager, false); for (i = 0; i < (unsigned) n; i++) { char ts[FORMAT_TIMESPAN_MAX]; if (times[i].time > 0) printf("%16s %s\n", format_timespan(ts, sizeof(ts), times[i].time, USEC_PER_MSEC), times[i].name); } free_unit_times(times, (unsigned) n); return 0; } static int analyze_time(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; _cleanup_free_ char *buf = NULL; int r; r = acquire_systemd_bus(&bus); if (r < 0) return log_error_errno(r, "Failed to create bus connection: %m"); r = pretty_boot_time(bus, &buf); if (r < 0) return r; puts(buf); return 0; } static int graph_one_property(sd_bus *bus, const UnitInfo *u, const char* prop, const char *color, char* patterns[], char* from_patterns[], char* to_patterns[]) { _cleanup_strv_free_ char **units = NULL; char **unit; int r; bool match_patterns; assert(u); assert(prop); assert(color); match_patterns = strv_fnmatch(patterns, u->id, 0); if (!strv_isempty(from_patterns) && !match_patterns && !strv_fnmatch(from_patterns, u->id, 0)) return 0; r = bus_get_unit_property_strv(bus, u->unit_path, prop, &units); if (r < 0) return r; STRV_FOREACH(unit, units) { bool match_patterns2; match_patterns2 = strv_fnmatch(patterns, *unit, 0); if (!strv_isempty(to_patterns) && !match_patterns2 && !strv_fnmatch(to_patterns, *unit, 0)) continue; if (!strv_isempty(patterns) && !match_patterns && !match_patterns2) continue; printf("\t\"%s\"->\"%s\" [color=\"%s\"];\n", u->id, *unit, color); } return 0; } static int graph_one(sd_bus *bus, const UnitInfo *u, char *patterns[], char *from_patterns[], char *to_patterns[]) { int r; assert(bus); assert(u); if (IN_SET(arg_dot, DEP_ORDER, DEP_ALL)) { r = graph_one_property(bus, u, "After", "green", patterns, from_patterns, to_patterns); if (r < 0) return r; } if (IN_SET(arg_dot, DEP_REQUIRE, DEP_ALL)) { r = graph_one_property(bus, u, "Requires", "black", patterns, from_patterns, to_patterns); if (r < 0) return r; r = graph_one_property(bus, u, "Requisite", "darkblue", patterns, from_patterns, to_patterns); if (r < 0) return r; r = graph_one_property(bus, u, "Wants", "grey66", patterns, from_patterns, to_patterns); if (r < 0) return r; r = graph_one_property(bus, u, "Conflicts", "red", patterns, from_patterns, to_patterns); if (r < 0) return r; } return 0; } static int expand_patterns(sd_bus *bus, char **patterns, char ***ret) { _cleanup_strv_free_ char **expanded_patterns = NULL; char **pattern; int r; STRV_FOREACH(pattern, patterns) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_free_ char *unit = NULL, *unit_id = NULL; if (strv_extend(&expanded_patterns, *pattern) < 0) return log_oom(); if (string_is_glob(*pattern)) continue; unit = unit_dbus_path_from_name(*pattern); if (!unit) return log_oom(); r = sd_bus_get_property_string( bus, "org.freedesktop.systemd1", unit, "org.freedesktop.systemd1.Unit", "Id", &error, &unit_id); if (r < 0) return log_error_errno(r, "Failed to get ID: %s", bus_error_message(&error, r)); if (!streq(*pattern, unit_id)) { if (strv_extend(&expanded_patterns, unit_id) < 0) return log_oom(); } } *ret = expanded_patterns; expanded_patterns = NULL; /* do not free */ return 0; } static int dot(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; _cleanup_strv_free_ char **expanded_patterns = NULL; _cleanup_strv_free_ char **expanded_from_patterns = NULL; _cleanup_strv_free_ char **expanded_to_patterns = NULL; int r; UnitInfo u; r = acquire_systemd_bus(&bus); if (r < 0) return log_error_errno(r, "Failed to create bus connection: %m"); r = expand_patterns(bus, strv_skip(argv, 1), &expanded_patterns); if (r < 0) return r; r = expand_patterns(bus, arg_dot_from_patterns, &expanded_from_patterns); if (r < 0) return r; r = expand_patterns(bus, arg_dot_to_patterns, &expanded_to_patterns); if (r < 0) return r; r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "ListUnits", &error, &reply, ""); if (r < 0) { log_error("Failed to list units: %s", bus_error_message(&error, -r)); return r; } r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)"); if (r < 0) return bus_log_parse_error(r); printf("digraph systemd {\n"); while ((r = bus_parse_unit_info(reply, &u)) > 0) { r = graph_one(bus, &u, expanded_patterns, expanded_from_patterns, expanded_to_patterns); if (r < 0) return r; } if (r < 0) return bus_log_parse_error(r); printf("}\n"); log_info(" Color legend: black = Requires\n" " dark blue = Requisite\n" " dark grey = Wants\n" " red = Conflicts\n" " green = After\n"); if (on_tty()) log_notice("-- You probably want to process this output with graphviz' dot tool.\n" "-- Try a shell pipeline like 'systemd-analyze dot | dot -Tsvg > systemd.svg'!\n"); return 0; } static int dump(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; const char *text = NULL; int r; r = acquire_systemd_bus(&bus); if (r < 0) return log_error_errno(r, "Failed to create bus connection: %m"); (void) pager_open(arg_no_pager, false); r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "Dump", &error, &reply, NULL); if (r < 0) return log_error_errno(r, "Failed to issue method call: %s", bus_error_message(&error, r)); r = sd_bus_message_read(reply, "s", &text); if (r < 0) return bus_log_parse_error(r); fputs(text, stdout); return 0; } static int set_log_level(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; int r; assert(argc == 2); assert(argv); r = acquire_systemd_bus(&bus); if (r < 0) return log_error_errno(r, "Failed to create bus connection: %m"); r = sd_bus_set_property( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "LogLevel", &error, "s", argv[1]); if (r < 0) return log_error_errno(r, "Failed to issue method call: %s", bus_error_message(&error, r)); return 0; } static int get_log_level(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; _cleanup_free_ char *level = NULL; int r; r = acquire_systemd_bus(&bus); if (r < 0) return log_error_errno(r, "Failed to create bus connection: %m"); r = sd_bus_get_property_string( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "LogLevel", &error, &level); if (r < 0) return log_error_errno(r, "Failed to get log level: %s", bus_error_message(&error, r)); puts(level); return 0; } static int get_or_set_log_level(int argc, char *argv[], void *userdata) { return (argc == 1) ? get_log_level(argc, argv, userdata) : set_log_level(argc, argv, userdata); } static int set_log_target(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; int r; assert(argc == 2); assert(argv); r = acquire_systemd_bus(&bus); if (r < 0) return log_error_errno(r, "Failed to create bus connection: %m"); r = sd_bus_set_property( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "LogTarget", &error, "s", argv[1]); if (r < 0) return log_error_errno(r, "Failed to issue method call: %s", bus_error_message(&error, r)); return 0; } static int get_log_target(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; _cleanup_free_ char *target = NULL; int r; r = acquire_systemd_bus(&bus); if (r < 0) return log_error_errno(r, "Failed to create bus connection: %m"); r = sd_bus_get_property_string( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "LogTarget", &error, &target); if (r < 0) return log_error_errno(r, "Failed to get log target: %s", bus_error_message(&error, r)); puts(target); return 0; } static int get_or_set_log_target(int argc, char *argv[], void *userdata) { return (argc == 1) ? get_log_target(argc, argv, userdata) : set_log_target(argc, argv, userdata); } static int dump_unit_paths(int argc, char *argv[], void *userdata) { _cleanup_lookup_paths_free_ LookupPaths paths = {}; int r; char **p; r = lookup_paths_init(&paths, arg_scope, 0, NULL); if (r < 0) return log_error_errno(r, "lookup_paths_init() failed: %m"); STRV_FOREACH(p, paths.search_path) puts(*p); return 0; } #if HAVE_SECCOMP static void dump_syscall_filter(const SyscallFilterSet *set) { const char *syscall; printf("%s\n", set->name); printf(" # %s\n", set->help); NULSTR_FOREACH(syscall, set->value) printf(" %s\n", syscall); } static int dump_syscall_filters(int argc, char *argv[], void *userdata) { bool first = true; (void) pager_open(arg_no_pager, false); if (strv_isempty(strv_skip(argv, 1))) { int i; for (i = 0; i < _SYSCALL_FILTER_SET_MAX; i++) { if (!first) puts(""); dump_syscall_filter(syscall_filter_sets + i); first = false; } } else { char **name; STRV_FOREACH(name, strv_skip(argv, 1)) { const SyscallFilterSet *set; if (!first) puts(""); set = syscall_filter_set_find(*name); if (!set) { /* make sure the error appears below normal output */ fflush(stdout); log_error("Filter set \"%s\" not found.", *name); return -ENOENT; } dump_syscall_filter(set); first = false; } } return 0; } #else static int dump_syscall_filters(int argc, char *argv[], void *userdata) { log_error("Not compiled with syscall filters, sorry."); return -EOPNOTSUPP; } #endif static int test_calendar(int argc, char *argv[], void *userdata) { int ret = 0, r; char **p; usec_t n; n = now(CLOCK_REALTIME); STRV_FOREACH(p, strv_skip(argv, 1)) { _cleanup_(calendar_spec_freep) CalendarSpec *spec = NULL; _cleanup_free_ char *t = NULL; usec_t next; r = calendar_spec_from_string(*p, &spec); if (r < 0) { ret = log_error_errno(r, "Failed to parse calendar specification '%s': %m", *p); continue; } r = calendar_spec_normalize(spec); if (r < 0) { ret = log_error_errno(r, "Failed to normalize calendar specification '%s': %m", *p); continue; } r = calendar_spec_to_string(spec, &t); if (r < 0) { ret = log_error_errno(r, "Failed to format calendar specification '%s': %m", *p); continue; } if (!streq(t, *p)) printf(" Original form: %s\n", *p); printf("Normalized form: %s\n", t); r = calendar_spec_next_usec(spec, n, &next); if (r == -ENOENT) printf(" Next elapse: never\n"); else if (r < 0) { ret = log_error_errno(r, "Failed to determine next elapse for '%s': %m", *p); continue; } else { char buffer[CONST_MAX(FORMAT_TIMESTAMP_MAX, FORMAT_TIMESTAMP_RELATIVE_MAX)]; printf(" Next elapse: %s\n", format_timestamp(buffer, sizeof(buffer), next)); if (!in_utc_timezone()) printf(" (in UTC): %s\n", format_timestamp_utc(buffer, sizeof(buffer), next)); printf(" From now: %s\n", format_timestamp_relative(buffer, sizeof(buffer), next)); } if (*(p+1)) putchar('\n'); } return ret; } static int service_watchdogs(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; int b, r; assert(IN_SET(argc, 1, 2)); assert(argv); r = acquire_systemd_bus(&bus); if (r < 0) return log_error_errno(r, "Failed to create bus connection: %m"); /* get ServiceWatchdogs */ if (argc == 1) { r = sd_bus_get_property_trivial( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "ServiceWatchdogs", &error, 'b', &b); if (r < 0) return log_error_errno(r, "Failed to get service-watchdog state: %s", bus_error_message(&error, r)); printf("%s\n", yes_no(!!b)); return 0; } /* set ServiceWatchdogs */ b = parse_boolean(argv[1]); if (b < 0) { log_error("Failed to parse service-watchdogs argument."); return -EINVAL; } r = sd_bus_set_property( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "ServiceWatchdogs", &error, "b", b); if (r < 0) return log_error_errno(r, "Failed to set service-watchdog state: %s", bus_error_message(&error, r)); return 0; } static int do_verify(int argc, char *argv[], void *userdata) { return verify_units(strv_skip(argv, 1), arg_scope, arg_man, arg_generators); } static int help(int argc, char *argv[], void *userdata) { (void) pager_open(arg_no_pager, false); printf("%s [OPTIONS...] {COMMAND} ...\n\n" "Profile systemd, show unit dependencies, check unit files.\n\n" " -h --help Show this help\n" " --version Show package version\n" " --no-pager Do not pipe output into a pager\n" " --system Operate on system systemd instance\n" " --user Operate on user systemd instance\n" " --global Operate on global user configuration\n" " -H --host=[USER@]HOST Operate on remote host\n" " -M --machine=CONTAINER Operate on local container\n" " --order Show only order in the graph\n" " --require Show only requirement in the graph\n" " --from-pattern=GLOB Show only origins in the graph\n" " --to-pattern=GLOB Show only destinations in the graph\n" " --fuzz=SECONDS Also print also services which finished SECONDS\n" " earlier than the latest in the branch\n" " --man[=BOOL] Do [not] check for existence of man pages\n\n" " --generators[=BOOL] Do [not] run unit generators (requires privileges)\n\n" "Commands:\n" " time Print time spent in the kernel\n" " blame Print list of running units ordered by time to init\n" " critical-chain [UNIT...] Print a tree of the time critical chain of units\n" " plot Output SVG graphic showing service initialization\n" " dot [UNIT...] Output dependency graph in man:dot(1) format\n" " log-level [LEVEL] Get/set logging threshold for manager\n" " log-target [TARGET] Get/set logging target for manager\n" " dump Output state serialization of service manager\n" " unit-paths List load directories for units\n" " syscall-filter [NAME...] Print list of syscalls in seccomp filter\n" " verify FILE... Check unit files for correctness\n" " calendar SPEC... Validate repetitive calendar time events\n" " service-watchdogs [BOOL] Get/set service watchdog state\n" , program_invocation_short_name); /* When updating this list, including descriptions, apply * changes to shell-completion/bash/systemd-analyze and * shell-completion/zsh/_systemd-analyze too. */ return 0; } static int parse_argv(int argc, char *argv[]) { enum { ARG_VERSION = 0x100, ARG_ORDER, ARG_REQUIRE, ARG_SYSTEM, ARG_USER, ARG_GLOBAL, ARG_DOT_FROM_PATTERN, ARG_DOT_TO_PATTERN, ARG_FUZZ, ARG_NO_PAGER, ARG_MAN, ARG_GENERATORS, }; static const struct option options[] = { { "help", no_argument, NULL, 'h' }, { "version", no_argument, NULL, ARG_VERSION }, { "order", no_argument, NULL, ARG_ORDER }, { "require", no_argument, NULL, ARG_REQUIRE }, { "system", no_argument, NULL, ARG_SYSTEM }, { "user", no_argument, NULL, ARG_USER }, { "global", no_argument, NULL, ARG_GLOBAL }, { "from-pattern", required_argument, NULL, ARG_DOT_FROM_PATTERN }, { "to-pattern", required_argument, NULL, ARG_DOT_TO_PATTERN }, { "fuzz", required_argument, NULL, ARG_FUZZ }, { "no-pager", no_argument, NULL, ARG_NO_PAGER }, { "man", optional_argument, NULL, ARG_MAN }, { "generators", optional_argument, NULL, ARG_GENERATORS }, { "host", required_argument, NULL, 'H' }, { "machine", required_argument, NULL, 'M' }, {} }; int r, c; assert(argc >= 0); assert(argv); while ((c = getopt_long(argc, argv, "hH:M:", options, NULL)) >= 0) switch (c) { case 'h': return help(0, NULL, NULL); case ARG_VERSION: return version(); case ARG_SYSTEM: arg_scope = UNIT_FILE_SYSTEM; break; case ARG_USER: arg_scope = UNIT_FILE_USER; break; case ARG_GLOBAL: arg_scope = UNIT_FILE_GLOBAL; break; case ARG_ORDER: arg_dot = DEP_ORDER; break; case ARG_REQUIRE: arg_dot = DEP_REQUIRE; break; case ARG_DOT_FROM_PATTERN: if (strv_extend(&arg_dot_from_patterns, optarg) < 0) return log_oom(); break; case ARG_DOT_TO_PATTERN: if (strv_extend(&arg_dot_to_patterns, optarg) < 0) return log_oom(); break; case ARG_FUZZ: r = parse_sec(optarg, &arg_fuzz); if (r < 0) return r; break; case ARG_NO_PAGER: arg_no_pager = true; break; case 'H': arg_transport = BUS_TRANSPORT_REMOTE; arg_host = optarg; break; case 'M': arg_transport = BUS_TRANSPORT_MACHINE; arg_host = optarg; break; case ARG_MAN: if (optarg) { r = parse_boolean(optarg); if (r < 0) { log_error("Failed to parse --man= argument."); return -EINVAL; } arg_man = !!r; } else arg_man = true; break; case ARG_GENERATORS: if (optarg) { r = parse_boolean(optarg); if (r < 0) { log_error("Failed to parse --generators= argument."); return -EINVAL; } arg_generators = !!r; } else arg_generators = true; break; case '?': return -EINVAL; default: assert_not_reached("Unhandled option code."); } if (arg_scope == UNIT_FILE_GLOBAL && !STR_IN_SET(argv[optind] ?: "time", "dot", "unit-paths", "verify")) { log_error("Option --global only makes sense with verbs dot, unit-paths, verify."); return -EINVAL; } return 1; /* work to do */ } int main(int argc, char *argv[]) { static const Verb verbs[] = { { "help", VERB_ANY, VERB_ANY, 0, help }, { "time", VERB_ANY, 1, VERB_DEFAULT, analyze_time }, { "blame", VERB_ANY, 1, 0, analyze_blame }, { "critical-chain", VERB_ANY, VERB_ANY, 0, analyze_critical_chain }, { "plot", VERB_ANY, 1, 0, analyze_plot }, { "dot", VERB_ANY, VERB_ANY, 0, dot }, { "log-level", VERB_ANY, 2, 0, get_or_set_log_level }, { "log-target", VERB_ANY, 2, 0, get_or_set_log_target }, /* The following four verbs are deprecated aliases */ { "set-log-level", 2, 2, 0, set_log_level }, { "get-log-level", VERB_ANY, 1, 0, get_log_level }, { "set-log-target", 2, 2, 0, set_log_target }, { "get-log-target", VERB_ANY, 1, 0, get_log_target }, { "dump", VERB_ANY, 1, 0, dump }, { "unit-paths", 1, 1, 0, dump_unit_paths }, { "syscall-filter", VERB_ANY, VERB_ANY, 0, dump_syscall_filters }, { "verify", 2, VERB_ANY, 0, do_verify }, { "calendar", 2, VERB_ANY, 0, test_calendar }, { "service-watchdogs", VERB_ANY, 2, 0, service_watchdogs }, {} }; int r; setlocale(LC_ALL, ""); setlocale(LC_NUMERIC, "C"); /* we want to format/parse floats in C style */ log_parse_environment(); log_open(); r = parse_argv(argc, argv); if (r <= 0) goto finish; r = dispatch_verb(argc, argv, verbs, NULL); finish: pager_close(); strv_free(arg_dot_from_patterns); strv_free(arg_dot_to_patterns); return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; }