diff options
Diffstat (limited to 'src/analyze/analyze.c')
| -rw-r--r-- | src/analyze/analyze.c | 2053 |
1 files changed, 2053 insertions, 0 deletions
diff --git a/src/analyze/analyze.c b/src/analyze/analyze.c new file mode 100644 index 0000000..3915b66 --- /dev/null +++ b/src/analyze/analyze.c @@ -0,0 +1,2053 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +/*** + Copyright © 2013 Simon Peeters +***/ + +#include <getopt.h> +#include <inttypes.h> +#include <locale.h> +#include <stdio.h> +#include <stdlib.h> + +#include "sd-bus.h" + +#include "alloc-util.h" +#include "analyze-security.h" +#include "analyze-verify.h" +#include "build.h" +#include "bus-error.h" +#include "bus-unit-util.h" +#include "bus-util.h" +#include "calendarspec.h" +#include "conf-files.h" +#include "copy.h" +#include "def.h" +#include "fd-util.h" +#include "fileio.h" +#include "glob-util.h" +#include "hashmap.h" +#include "locale-util.h" +#include "log.h" +#include "main-func.h" +#include "pager.h" +#include "parse-util.h" +#include "path-util.h" +#include "pretty-print.h" +#if HAVE_SECCOMP +# include "seccomp-util.h" +#endif +#include "special.h" +#include "strv.h" +#include "strxcpyx.h" +#include "time-util.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 svg(...) printf(__VA_ARGS__) + +#define svg_bar(class, x1, x2, y) \ + svg(" <rect class=\"%s\" x=\"%.03f\" y=\"%.03f\" width=\"%.03f\" height=\"%.03f\" />\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(" <text class=\"%s\" x=\"%.03f\" y=\"%.03f\">", (b) ? "left" : "right", SCALE_X * (x) + (b ? 5.0 : -5.0), SCALE_Y * (y) + 14.0); \ + svg(format, ## __VA_ARGS__); \ + svg("</text>\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 PagerFlags arg_pager_flags = 0; +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; +static const char *arg_root = NULL; + +STATIC_DESTRUCTOR_REGISTER(arg_dot_from_patterns, strv_freep); +STATIC_DESTRUCTOR_REGISTER(arg_dot_to_patterns, strv_freep); + +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; + usec_t initrd_security_start_time; + usec_t initrd_security_finish_time; + usec_t initrd_generators_start_time; + usec_t initrd_generators_finish_time; + usec_t initrd_unitsload_start_time; + usec_t initrd_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 { + bool has_data; + 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_bus(sd_bus **bus, bool *use_full_bus) { + bool user = arg_scope != UNIT_FILE_SYSTEM; + int r; + + if (use_full_bus && *use_full_bus) { + r = bus_connect_transport(arg_transport, arg_host, user, bus); + if (IN_SET(r, 0, -EHOSTDOWN)) + return r; + + *use_full_bus = false; + } + + return bus_connect_transport_systemd(arg_transport, arg_host, user, 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) + return log_error_errno(r, "Failed to parse reply: %s", bus_error_message(&error, 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) + return log_error_errno(r, "Failed to get unit property %s: %s", property, bus_error_message(&error, r)); + + return 0; +} + +static int compare_unit_time(const struct unit_times *a, const struct unit_times *b) { + return CMP(b->time, a->time); +} + +static int compare_unit_start(const struct unit_times *a, const struct unit_times *b) { + return CMP(a->activating, b->activating); +} + +static void unit_times_free(struct unit_times *t) { + struct unit_times *p; + + for (p = t; p->has_data; p++) + free(p->name); + free(t); +} + +DEFINE_TRIVIAL_CLEANUP_FUNC(struct unit_times *, unit_times_free); + +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 const struct bus_properties_map property_map[] = { + { "FirmwareTimestampMonotonic", "t", NULL, offsetof(struct boot_times, firmware_time) }, + { "LoaderTimestampMonotonic", "t", NULL, offsetof(struct boot_times, loader_time) }, + { "KernelTimestamp", "t", NULL, offsetof(struct boot_times, kernel_time) }, + { "InitRDTimestampMonotonic", "t", NULL, offsetof(struct boot_times, initrd_time) }, + { "UserspaceTimestampMonotonic", "t", NULL, offsetof(struct boot_times, userspace_time) }, + { "FinishTimestampMonotonic", "t", NULL, offsetof(struct boot_times, finish_time) }, + { "SecurityStartTimestampMonotonic", "t", NULL, offsetof(struct boot_times, security_start_time) }, + { "SecurityFinishTimestampMonotonic", "t", NULL, offsetof(struct boot_times, security_finish_time) }, + { "GeneratorsStartTimestampMonotonic", "t", NULL, offsetof(struct boot_times, generators_start_time) }, + { "GeneratorsFinishTimestampMonotonic", "t", NULL, offsetof(struct boot_times, generators_finish_time) }, + { "UnitsLoadStartTimestampMonotonic", "t", NULL, offsetof(struct boot_times, unitsload_start_time) }, + { "UnitsLoadFinishTimestampMonotonic", "t", NULL, offsetof(struct boot_times, unitsload_finish_time) }, + { "InitRDSecurityStartTimestampMonotonic", "t", NULL, offsetof(struct boot_times, initrd_security_start_time) }, + { "InitRDSecurityFinishTimestampMonotonic", "t", NULL, offsetof(struct boot_times, initrd_security_finish_time) }, + { "InitRDGeneratorsStartTimestampMonotonic", "t", NULL, offsetof(struct boot_times, initrd_generators_start_time) }, + { "InitRDGeneratorsFinishTimestampMonotonic", "t", NULL, offsetof(struct boot_times, initrd_generators_finish_time) }, + { "InitRDUnitsLoadStartTimestampMonotonic", "t", NULL, offsetof(struct boot_times, initrd_unitsload_start_time) }, + { "InitRDUnitsLoadFinishTimestampMonotonic", "t", NULL, offsetof(struct boot_times, initrd_unitsload_finish_time) }, + {}, + }; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + static struct boot_times times; + static bool cached = false; + int r; + + if (cached) + goto finish; + + 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, + ×); + if (r < 0) + return log_error_errno(r, "Failed to get timestamp properties: %s", bus_error_message(&error, r)); + + 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 && times.security_start_time > 0) { + /* 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 struct boot_times). + */ + 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; + + subtract_timestamp(×.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) { + static const struct bus_properties_map property_map[] = { + { "InactiveExitTimestampMonotonic", "t", NULL, offsetof(struct unit_times, activating) }, + { "ActiveEnterTimestampMonotonic", "t", NULL, offsetof(struct unit_times, activated) }, + { "ActiveExitTimestampMonotonic", "t", NULL, offsetof(struct unit_times, deactivating) }, + { "InactiveEnterTimestampMonotonic", "t", NULL, offsetof(struct unit_times, deactivated) }, + {}, + }; + _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_freep) struct unit_times *unit_times = NULL; + struct boot_times *boot_times = NULL; + size_t allocated = 0, c = 0; + UnitInfo u; + int r; + + r = acquire_boot_times(bus, &boot_times); + if (r < 0) + return r; + + r = sd_bus_call_method( + bus, + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "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) { + struct unit_times *t; + + if (!GREEDY_REALLOC(unit_times, allocated, c+2)) + return log_oom(); + + unit_times[c+1].has_data = false; + t = &unit_times[c]; + t->name = NULL; + + 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)); + + 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) + return log_oom(); + + t->has_data = true; + c++; + } + if (r < 0) + return bus_log_parse_error(r); + + *out = TAKE_PTR(unit_times); + return c; +} + +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_(sd_bus_flush_close_unrefp) sd_bus *system_bus = NULL; + _cleanup_(free_host_infop) struct host_info *host; + int r; + + host = new0(struct host_info, 1); + if (!host) + return log_oom(); + + if (arg_scope != UNIT_FILE_SYSTEM) { + r = bus_connect_transport(arg_transport, arg_host, false, &system_bus); + if (r < 0) { + log_debug_errno(r, "Failed to connect to system bus, ignoring: %m"); + goto manager; + } + } + + r = bus_map_all_properties(system_bus ?: 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, ignoring: %s", bus_error_message(&error, r)); + sd_bus_error_free(&error); + } + +manager: + 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, ignoring: %m"); + 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_done_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_done_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) { + usec_t base = t->userspace_time > 0 ? t->userspace_time : t->reverse_offset; + + size = strpcpyf(&ptr, size, "\n%s reached after %s in userspace", unit_id, + format_timespan(ts, sizeof(ts), activated_time - base, 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("<rect class=\"box\" x=\"0\" y=\"0\" width=\"%.03f\" height=\"%.03f\" />\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(" <line class=\"sec5\" x1=\"%.03f\" y1=\"0\" x2=\"%.03f\" y2=\"%.03f\" />\n" + " <text class=\"sec\" x=\"%.03f\" y=\"%.03f\" >%.01fs</text>\n", + SCALE_X * i, SCALE_X * i, SCALE_Y * height, SCALE_X * i, -5.0, 0.000001 * i); + else if (i % 1000000 == 0) + svg(" <line class=\"sec1\" x1=\"%.03f\" y1=\"0\" x2=\"%.03f\" y2=\"%.03f\" />\n" + " <text class=\"sec\" x=\"%.03f\" y=\"%.03f\" >%.01fs</text>\n", + SCALE_X * i, SCALE_X * i, SCALE_Y * height, SCALE_X * i, -5.0, 0.000001 * i); + else + svg(" <line class=\"sec01\" x1=\"%.03f\" y1=\"0\" x2=\"%.03f\" y2=\"%.03f\" />\n", + SCALE_X * i, SCALE_X * i, SCALE_Y * height); + } +} + +static int plot_unit_times(struct unit_times *u, double width, int y) { + char ts[FORMAT_TIMESPAN_MAX]; + bool b; + + if (!u->name) + return 0; + + svg_bar("activating", u->activating, u->activated, y); + svg_bar("active", u->activated, u->deactivating, y); + svg_bar("deactivating", u->deactivating, u->deactivated, y); + + /* place the text on the left if we have passed the half of the svg width */ + b = u->activating * SCALE_X < width / 2; + if (u->time) + svg_text(b, u->activating, y, "%s (%s)", + u->name, format_timespan(ts, sizeof(ts), u->time, USEC_PER_MSEC)); + else + svg_text(b, u->activating, y, "%s", u->name); + + return 1; +} + +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; + _cleanup_(unit_times_freep) struct unit_times *times = NULL; + _cleanup_free_ char *pretty_times = NULL; + bool use_full_bus = arg_scope == UNIT_FILE_SYSTEM; + struct boot_times *boot; + struct unit_times *u; + int n, m = 1, y = 0, r; + double width; + + r = acquire_bus(&bus, &use_full_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 || arg_scope != UNIT_FILE_SYSTEM) { + n = acquire_host_info(bus, &host); + if (n < 0) + return n; + } + + n = acquire_time_data(bus, ×); + if (n <= 0) + return n; + + typesafe_qsort(times, n, 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_done_time > 0) + m++; + + for (u = times; u->has_data; u++) { + double text_start, text_width; + + if (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->deactivating > 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("<?xml version=\"1.0\" standalone=\"no\"?>\n" + "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" " + "\"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n"); + + svg("<svg width=\"%.0fpx\" height=\"%.0fpx\" version=\"1.1\" " + "xmlns=\"http://www.w3.org/2000/svg\">\n\n", + 80.0 + width, 150.0 + (m * SCALE_Y) + + 5 * SCALE_Y /* legend */); + + /* write some basic info as a comment, including some help */ + svg("<!-- This file is a systemd-analyze SVG file. It is best rendered in a -->\n" + "<!-- browser such as Chrome, Chromium or Firefox. Other applications -->\n" + "<!-- that render these files properly but much slower are ImageMagick, -->\n" + "<!-- gimp, inkscape, etc. To display the files on your system, just -->\n" + "<!-- point your browser to this file. -->\n\n" + "<!-- This plot was generated by systemd-analyze version %-16.16s -->\n\n", GIT_VERSION); + + /* style sheet */ + svg("<defs>\n <style type=\"text/css\">\n <![CDATA[\n" + " rect { stroke-width: 1; stroke-opacity: 0; }\n" + " rect.background { fill: rgb(255,255,255); }\n" + " rect.activating { fill: rgb(255,0,0); fill-opacity: 0.7; }\n" + " rect.active { fill: rgb(200,150,150); fill-opacity: 0.7; }\n" + " rect.deactivating { fill: rgb(150,100,100); fill-opacity: 0.7; }\n" + " rect.kernel { fill: rgb(150,150,150); fill-opacity: 0.7; }\n" + " rect.initrd { fill: rgb(150,150,150); fill-opacity: 0.7; }\n" + " rect.firmware { fill: rgb(150,150,150); fill-opacity: 0.7; }\n" + " rect.loader { fill: rgb(150,150,150); fill-opacity: 0.7; }\n" + " rect.userspace { fill: rgb(150,150,150); fill-opacity: 0.7; }\n" + " rect.security { fill: rgb(144,238,144); fill-opacity: 0.7; }\n" + " rect.generators { fill: rgb(102,204,255); fill-opacity: 0.7; }\n" + " rect.unitsload { fill: rgb( 82,184,255); fill-opacity: 0.7; }\n" + " rect.box { fill: rgb(240,240,240); stroke: rgb(192,192,192); }\n" + " line { stroke: rgb(64,64,64); stroke-width: 1; }\n" + "// line.sec1 { }\n" + " line.sec5 { stroke-width: 2; }\n" + " line.sec01 { stroke: rgb(224,224,224); stroke-width: 1; }\n" + " text { font-family: Verdana, Helvetica; font-size: 14px; }\n" + " text.left { font-family: Verdana, Helvetica; font-size: 14px; text-anchor: start; }\n" + " text.right { font-family: Verdana, Helvetica; font-size: 14px; text-anchor: end; }\n" + " text.sec { font-size: 10px; }\n" + " ]]>\n </style>\n</defs>\n\n"); + + svg("<rect class=\"background\" width=\"100%%\" height=\"100%%\" />\n"); + svg("<text x=\"20\" y=\"50\">%s</text>", pretty_times); + if (host) + svg("<text x=\"20\" y=\"30\">%s %s (%s %s %s) %s %s</text>", + isempty(host->os_pretty_name) ? "Linux" : host->os_pretty_name, + strempty(host->hostname), + strempty(host->kernel_name), + strempty(host->kernel_release), + strempty(host->kernel_version), + strempty(host->architecture), + strempty(host->virtualization)); + + svg("<g transform=\"translate(%.3f,100)\">\n", 20.0 + (SCALE_X * boot->firmware_time)); + svg_graph_box(m, -(double) boot->firmware_time, boot->finish_time); + + if (boot->firmware_time > 0) { + svg_bar("firmware", -(double) boot->firmware_time, -(double) boot->loader_time, y); + svg_text(true, -(double) boot->firmware_time, y, "firmware"); + y++; + } + if (boot->loader_time > 0) { + svg_bar("loader", -(double) boot->loader_time, 0, y); + svg_text(true, -(double) boot->loader_time, y, "loader"); + y++; + } + if (boot->kernel_done_time > 0) { + svg_bar("kernel", 0, boot->kernel_done_time, y); + svg_text(true, 0, y, "kernel"); + y++; + } + if (boot->initrd_time > 0) { + svg_bar("initrd", boot->initrd_time, boot->userspace_time, y); + if (boot->initrd_security_start_time < boot->initrd_security_finish_time) + svg_bar("security", boot->initrd_security_start_time, boot->initrd_security_finish_time, y); + if (boot->initrd_generators_start_time < boot->initrd_generators_finish_time) + svg_bar("generators", boot->initrd_generators_start_time, boot->initrd_generators_finish_time, y); + if (boot->initrd_unitsload_start_time < boot->initrd_unitsload_finish_time) + svg_bar("unitsload", boot->initrd_unitsload_start_time, boot->initrd_unitsload_finish_time, y); + svg_text(true, boot->initrd_time, y, "initrd"); + y++; + } + + for (u = times; u->has_data; u++) { + if (u->activating >= boot->userspace_time) + break; + + y += plot_unit_times(u, width, y); + } + + svg_bar("active", boot->userspace_time, boot->finish_time, y); + if (boot->security_start_time > 0) + svg_bar("security", boot->security_start_time, boot->security_finish_time, y); + svg_bar("generators", boot->generators_start_time, boot->generators_finish_time, y); + svg_bar("unitsload", boot->unitsload_start_time, boot->unitsload_finish_time, y); + svg_text(true, boot->userspace_time, y, "systemd"); + y++; + + for (; u->has_data; u++) + y += plot_unit_times(u, width, y); + + svg("</g>\n"); + + /* Legend */ + svg("<g transform=\"translate(20,100)\">\n"); + y++; + svg_bar("activating", 0, 300000, y); + svg_text(true, 400000, y, "Activating"); + y++; + svg_bar("active", 0, 300000, y); + svg_text(true, 400000, y, "Active"); + y++; + svg_bar("deactivating", 0, 300000, y); + svg_text(true, 400000, y, "Deactivating"); + y++; + if (boot->security_start_time > 0) { + svg_bar("security", 0, 300000, y); + svg_text(true, 400000, y, "Setting up security module"); + y++; + } + svg_bar("generators", 0, 300000, y); + svg_text(true, 400000, y, "Generators"); + y++; + svg_bar("unitsload", 0, 300000, y); + svg_text(true, 400000, y, "Loading unit files"); + y++; + + svg("</g>\n\n"); + + svg("</svg>\n"); + + return 0; +} + +static int list_dependencies_print(const char *name, unsigned level, unsigned branches, + bool last, struct unit_times *times, struct boot_times *boot) { + unsigned i; + char ts[FORMAT_TIMESPAN_MAX], ts2[FORMAT_TIMESPAN_MAX]; + + for (i = level; i != 0; i--) + printf("%s", special_glyph(branches & (1 << (i-1)) ? SPECIAL_GLYPH_TREE_VERTICAL : SPECIAL_GLYPH_TREE_SPACE)); + + printf("%s", special_glyph(last ? SPECIAL_GLYPH_TREE_RIGHT : SPECIAL_GLYPH_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(char * const *a, char * const *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 CMP(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 level, char ***units, + unsigned 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; + + typesafe_qsort(deps, strv_length(deps), 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 = times->activated; + } + + 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) + return log_error_errno(r, "Failed to get ID: %s", bus_error_message(&error, 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; + _cleanup_(unit_times_freep) struct unit_times *times = NULL; + struct unit_times *u; + Hashmap *h; + int n, r; + + r = acquire_bus(&bus, NULL); + 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 (u = times; u->has_data; u++) { + r = hashmap_put(h, u->name, u); + if (r < 0) + return log_error_errno(r, "Failed to add entry to hashmap: %m"); + } + unit_times_hashmap = h; + + (void) pager_open(arg_pager_flags); + + 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); + return 0; +} + +static int analyze_blame(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; + _cleanup_(unit_times_freep) struct unit_times *times = NULL; + struct unit_times *u; + int n, r; + + r = acquire_bus(&bus, NULL); + if (r < 0) + return log_error_errno(r, "Failed to create bus connection: %m"); + + n = acquire_time_data(bus, ×); + if (n <= 0) + return n; + + typesafe_qsort(times, n, compare_unit_time); + + (void) pager_open(arg_pager_flags); + + for (u = times; u->has_data; u++) { + char ts[FORMAT_TIMESPAN_MAX]; + + if (u->time > 0) + printf("%16s %s\n", format_timespan(ts, sizeof(ts), u->time, USEC_PER_MSEC), u->name); + } + + 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_bus(&bus, NULL); + 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_bus(&bus, NULL); + 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_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); + + 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_fallback(sd_bus *bus) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + const char *text = NULL; + int r; + + assert(bus); + + 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 Dump: %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 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; + int fd = -1; + int r; + + r = acquire_bus(&bus, NULL); + if (r < 0) + return log_error_errno(r, "Failed to create bus connection: %m"); + + (void) pager_open(arg_pager_flags); + + if (!sd_bus_can_send(bus, SD_BUS_TYPE_UNIX_FD)) + return dump_fallback(bus); + + r = sd_bus_call_method( + bus, + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "DumpByFileDescriptor", + &error, + &reply, + NULL); + if (r < 0) { + /* fall back to Dump if DumpByFileDescriptor is not supported */ + if (!IN_SET(r, -EACCES, -EBADR)) + return log_error_errno(r, "Failed to issue method call DumpByFileDescriptor: %s", bus_error_message(&error, r)); + + return dump_fallback(bus); + } + + r = sd_bus_message_read(reply, "h", &fd); + if (r < 0) + return bus_log_parse_error(r); + + fflush(stdout); + return copy_bytes(fd, STDOUT_FILENO, (uint64_t) -1, 0); +} + +static int cat_config(int argc, char *argv[], void *userdata) { + char **arg, **list; + int r; + + (void) pager_open(arg_pager_flags); + + list = strv_skip(argv, 1); + STRV_FOREACH(arg, list) { + const char *t = NULL; + + if (arg != list) + print_separator(); + + if (path_is_absolute(*arg)) { + const char *dir; + + NULSTR_FOREACH(dir, CONF_PATHS_NULSTR("")) { + t = path_startswith(*arg, dir); + if (t) + break; + } + + if (!t) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Path %s does not start with any known prefix.", + *arg); + } else + t = *arg; + + r = conf_files_cat(arg_root, t); + if (r < 0) + return r; + } + + 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_bus(&bus, NULL); + 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_bus(&bus, NULL); + 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_bus(&bus, NULL); + 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_bus(&bus, NULL); + 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 int load_kernel_syscalls(Set **ret) { + _cleanup_(set_free_freep) Set *syscalls = NULL; + _cleanup_fclose_ FILE *f = NULL; + int r; + + /* Let's read the available system calls from the list of available tracing events. Slightly dirty, but good + * enough for analysis purposes. */ + + f = fopen("/sys/kernel/debug/tracing/available_events", "re"); + if (!f) + return log_full_errno(IN_SET(errno, EPERM, EACCES, ENOENT) ? LOG_DEBUG : LOG_WARNING, errno, "Can't read open /sys/kernel/debug/tracing/available_events: %m"); + + for (;;) { + _cleanup_free_ char *line = NULL; + const char *e; + + r = read_line(f, LONG_LINE_MAX, &line); + if (r < 0) + return log_error_errno(r, "Failed to read system call list: %m"); + if (r == 0) + break; + + e = startswith(line, "syscalls:sys_enter_"); + if (!e) + continue; + + /* These are named differently inside the kernel than their external name for historical reasons. Let's hide them here. */ + if (STR_IN_SET(e, "newuname", "newfstat", "newstat", "newlstat", "sysctl")) + continue; + + r = set_ensure_allocated(&syscalls, &string_hash_ops); + if (r < 0) + return log_oom(); + + r = set_put_strdup(syscalls, e); + if (r < 0) + return log_error_errno(r, "Failed to add system call to list: %m"); + } + + *ret = TAKE_PTR(syscalls); + return 0; +} + +static void kernel_syscalls_remove(Set *s, const SyscallFilterSet *set) { + const char *syscall; + + NULSTR_FOREACH(syscall, set->value) { + if (syscall[0] == '@') + continue; + + (void) set_remove(s, syscall); + } +} + +static void dump_syscall_filter(const SyscallFilterSet *set) { + const char *syscall; + + printf("%s%s%s\n" + " # %s\n", + ansi_highlight(), + set->name, + ansi_normal(), + set->help); + + NULSTR_FOREACH(syscall, set->value) + printf(" %s%s%s\n", + syscall[0] == '@' ? ansi_underline() : "", + syscall, + ansi_normal()); +} + +static int dump_syscall_filters(int argc, char *argv[], void *userdata) { + bool first = true; + + (void) pager_open(arg_pager_flags); + + if (strv_isempty(strv_skip(argv, 1))) { + _cleanup_(set_free_freep) Set *kernel = NULL; + int i, k; + + k = load_kernel_syscalls(&kernel); + + for (i = 0; i < _SYSCALL_FILTER_SET_MAX; i++) { + const SyscallFilterSet *set = syscall_filter_sets + i; + if (!first) + puts(""); + + dump_syscall_filter(set); + kernel_syscalls_remove(kernel, set); + first = false; + } + + if (k < 0) { + fputc('\n', stdout); + fflush(stdout); + log_notice_errno(k, "# Not showing unlisted system calls, couldn't retrieve kernel system call list: %m"); + } else if (!set_isempty(kernel)) { + const char *syscall; + Iterator j; + + printf("\n" + "# %sUnlisted System Calls%s (supported by the local kernel, but not included in any of the groups listed above):\n", + ansi_highlight(), ansi_normal()); + + SET_FOREACH(syscall, kernel, j) + printf("# %s\n", syscall); + } + } 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) { + return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), + "Not compiled with syscall filters, sorry."); +} +#endif + +static int dump_timespan(int argc, char *argv[], void *userdata) { + char **input_timespan; + + STRV_FOREACH(input_timespan, strv_skip(argv, 1)) { + int r; + usec_t usec_magnitude = 1, output_usecs; + char ft_buf[FORMAT_TIMESPAN_MAX]; + + r = parse_time(*input_timespan, &output_usecs, USEC_PER_SEC); + if (r < 0) + return log_error_errno(r, "Failed to parse time span '%s': %m", *input_timespan); + + printf("Original: %s\n", *input_timespan); + printf(" %ss: %" PRIu64 "\n", special_glyph(SPECIAL_GLYPH_MU), output_usecs); + printf(" Human: %s\n", format_timespan(ft_buf, sizeof(ft_buf), output_usecs, usec_magnitude)); + + if (input_timespan[1]) + putchar('\n'); + } + + return EXIT_SUCCESS; +} + +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_bus(&bus, NULL); + 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 do_security(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; + int r; + + r = acquire_bus(&bus, NULL); + if (r < 0) + return log_error_errno(r, "Failed to create bus connection: %m"); + + (void) pager_open(arg_pager_flags); + + return analyze_security(bus, strv_skip(argv, 1), 0); +} + +static int help(int argc, char *argv[], void *userdata) { + _cleanup_free_ char *link = NULL; + int r; + + (void) pager_open(arg_pager_flags); + + r = terminal_urlify_man("systemd-analyze", "1", &link); + if (r < 0) + return log_oom(); + + 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" + " --generators[=BOOL] Do [not] run unit generators (requires privileges)\n" + "\nCommands:\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" + " cat-config Show configuration file and drop-ins\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" + " timespan SPAN... Validate a time span\n" + " security [UNIT...] Analyze security of unit\n" + "\nSee the %s for details.\n" + , program_invocation_short_name + , link + ); + + /* 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_ROOT, + 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 }, + { "root", required_argument, NULL, ARG_ROOT }, + { "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_ROOT: + arg_root = optarg; + break; + + 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_pager_flags |= PAGER_DISABLE; + 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) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Failed to parse --man= argument."); + + arg_man = r; + } else + arg_man = true; + + break; + + case ARG_GENERATORS: + if (optarg) { + r = parse_boolean(optarg); + if (r < 0) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Failed to parse --generators= argument."); + + 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")) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Option --global only makes sense with verbs dot, unit-paths, verify."); + + if (arg_root && !streq_ptr(argv[optind], "cat-config")) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Option --root is only supported for cat-config right now."); + + return 1; /* work to do */ +} + +static int run(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 }, + { "cat-config", 2, VERB_ANY, 0, cat_config }, + { "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 }, + { "timespan", 2, VERB_ANY, 0, dump_timespan }, + { "security", VERB_ANY, VERB_ANY, 0, do_security }, + {} + }; + + 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) + return r; + + return dispatch_verb(argc, argv, verbs, NULL); +} + +DEFINE_MAIN_FUNCTION(run); |