/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include "sd-login.h" #include "bus-error.h" #include "bus-locator.h" #include "format-table.h" #include "locale-util.h" #include "path-util.h" #include "set.h" #include "sort-util.h" #include "systemctl-list-units.h" #include "systemctl-util.h" #include "systemctl.h" #include "terminal-util.h" static int get_unit_list_recursive( sd_bus *bus, char **patterns, UnitInfo **ret_unit_infos, Set **ret_replies) { _cleanup_free_ UnitInfo *unit_infos = NULL; _cleanup_set_free_ Set *replies = NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; int c, r; assert(bus); assert(ret_replies); assert(ret_unit_infos); c = get_unit_list(bus, NULL, patterns, &unit_infos, 0, &reply); if (c < 0) return c; r = set_ensure_consume(&replies, &bus_message_hash_ops, TAKE_PTR(reply)); if (r < 0) return log_oom(); if (arg_recursive) { _cleanup_strv_free_ char **machines = NULL; r = sd_get_machine_names(&machines); if (r < 0) return log_error_errno(r, "Failed to get machine names: %m"); STRV_FOREACH(i, machines) { _cleanup_(sd_bus_flush_close_unrefp) sd_bus *container = NULL; int k; r = sd_bus_open_system_machine(&container, *i); if (r < 0) { log_warning_errno(r, "Failed to connect to container %s, ignoring: %m", *i); continue; } k = get_unit_list(container, *i, patterns, &unit_infos, c, &reply); if (k < 0) return k; c = k; r = set_consume(replies, TAKE_PTR(reply)); if (r < 0) return log_oom(); } } *ret_unit_infos = TAKE_PTR(unit_infos); *ret_replies = TAKE_PTR(replies); return c; } static void output_legend(const char *type, size_t n_items) { const char *on, *off; assert(type); on = n_items > 0 ? ansi_highlight() : ansi_highlight_red(); off = ansi_normal(); printf("\n%s%zu %ss listed.%s\n", on, n_items, type, off); if (!arg_all) printf("Pass --all to see loaded but inactive %ss, too.\n", type); } static int table_add_triggered(Table *table, char **triggered) { assert(table); if (strv_isempty(triggered)) return table_add_cell(table, NULL, TABLE_EMPTY, NULL); else if (strv_length(triggered) == 1) return table_add_cell(table, NULL, TABLE_STRING, triggered[0]); else /* This should never happen, currently our socket units can only trigger a * single unit. But let's handle this anyway, who knows what the future * brings? */ return table_add_cell(table, NULL, TABLE_STRV, triggered); } static char *format_unit_id(const char *unit, const char *machine) { assert(unit); return machine ? strjoin(machine, ":", unit) : strdup(unit); } static int output_units_list(const UnitInfo *unit_infos, size_t c) { _cleanup_(table_unrefp) Table *table = NULL; size_t job_count = 0; int r; table = table_new("", "unit", "load", "active", "sub", "job", "description"); if (!table) return log_oom(); table_set_header(table, arg_legend != 0); if (arg_plain) { /* Hide the 'glyph' column when --plain is requested */ r = table_hide_column_from_display(table, 0); if (r < 0) return log_error_errno(r, "Failed to hide column: %m"); } if (arg_full) table_set_width(table, 0); table_set_ersatz_string(table, TABLE_ERSATZ_DASH); FOREACH_ARRAY(u, unit_infos, c) { _cleanup_free_ char *id = NULL; const char *on_underline = "", *on_loaded = "", *on_active = "", *on_circle = ""; bool circle = false, underline = false; if (u + 1 < unit_infos + c && !streq(unit_type_suffix(u->id), unit_type_suffix((u + 1)->id))) { on_underline = ansi_underline(); underline = true; } if (STR_IN_SET(u->load_state, "error", "not-found", "bad-setting", "masked") && !arg_plain) { on_circle = underline ? ansi_highlight_yellow_underline() : ansi_highlight_yellow(); circle = true; on_loaded = underline ? ansi_highlight_red_underline() : ansi_highlight_red(); } else if (streq(u->active_state, "failed") && !arg_plain) { on_circle = underline ? ansi_highlight_red_underline() : ansi_highlight_red(); circle = true; on_active = underline ? ansi_highlight_red_underline() : ansi_highlight_red(); } else { on_circle = on_underline; on_active = on_underline; on_loaded = on_underline; } id = format_unit_id(u->id, u->machine); if (!id) return log_oom(); r = table_add_many(table, TABLE_STRING, circle ? special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE) : " ", TABLE_SET_BOTH_COLORS, on_circle, TABLE_STRING, id, TABLE_SET_BOTH_COLORS, on_active, TABLE_STRING, u->load_state, TABLE_SET_BOTH_COLORS, on_loaded, TABLE_STRING, u->active_state, TABLE_SET_BOTH_COLORS, on_active, TABLE_STRING, u->sub_state, TABLE_SET_BOTH_COLORS, on_active, TABLE_STRING, u->job_id ? u->job_type: "", TABLE_SET_BOTH_COLORS, on_underline, TABLE_STRING, u->description, TABLE_SET_BOTH_COLORS, on_underline); if (r < 0) return table_log_add_error(r); if (u->job_id != 0) job_count++; } if (job_count == 0) { /* There's no data in the JOB column, so let's hide it */ r = table_hide_column_from_display(table, 5); if (r < 0) return log_error_errno(r, "Failed to hide column: %m"); } r = output_table(table); if (r < 0) return r; if (arg_legend != 0) { const char *on, *off; size_t records = table_get_rows(table) - 1; if (records > 0) { puts("\n" "LOAD = Reflects whether the unit definition was properly loaded.\n" "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n" "SUB = The low-level unit activation state, values depend on unit type."); if (job_count > 0) puts("JOB = Pending job for the unit.\n"); } on = records > 0 ? ansi_highlight() : ansi_highlight_red(); off = ansi_normal(); if (arg_all || strv_contains(arg_states, "inactive")) printf("%s%zu loaded units listed.%s\n" "To show all installed unit files use 'systemctl list-unit-files'.\n", on, records, off); else if (!arg_states) printf("%s%zu loaded units listed.%s Pass --all to see loaded but inactive units, too.\n" "To show all installed unit files use 'systemctl list-unit-files'.\n", on, records, off); else printf("%zu loaded units listed.\n", records); } return 0; } int verb_list_units(int argc, char *argv[], void *userdata) { _cleanup_free_ UnitInfo *unit_infos = NULL; _cleanup_set_free_ Set *replies = NULL; sd_bus *bus; int r; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; pager_open(arg_pager_flags); if (arg_with_dependencies) { _cleanup_strv_free_ char **names = NULL; r = append_unit_dependencies(bus, strv_skip(argv, 1), &names); if (r < 0) return r; r = get_unit_list_recursive(bus, names, &unit_infos, &replies); if (r < 0) return r; } else { r = get_unit_list_recursive(bus, strv_skip(argv, 1), &unit_infos, &replies); if (r < 0) return r; } typesafe_qsort(unit_infos, r, unit_info_compare); return output_units_list(unit_infos, r); } static int get_triggered_units( sd_bus *bus, const char* path, char*** ret) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; int r; assert(bus); assert(path); assert(ret); r = sd_bus_get_property_strv( bus, "org.freedesktop.systemd1", path, "org.freedesktop.systemd1.Unit", "Triggers", &error, ret); if (r < 0) return log_error_errno(r, "Failed to determine triggers: %s", bus_error_message(&error, r)); return 0; } typedef struct SocketInfo { const char *machine; const char* id; char* type; char* path; /* absolute path or socket address */ /* Note: triggered is a list here, although it almost certainly will always be one * unit. Nevertheless, dbus API allows for multiple values, so let's follow that. */ char** triggered; } SocketInfo; static void socket_info_array_free(SocketInfo *sockets, size_t n_sockets) { assert(sockets || n_sockets == 0); FOREACH_ARRAY(s, sockets, n_sockets) { free(s->type); free(s->path); strv_free(s->triggered); } free(sockets); } static int socket_info_compare(const SocketInfo *a, const SocketInfo *b) { int r; assert(a); assert(b); r = strcasecmp_ptr(a->machine, b->machine); if (r != 0) return r; r = CMP(path_is_absolute(a->path), path_is_absolute(b->path)); if (r != 0) return r; r = path_is_absolute(a->path) ? path_compare(a->path, b->path) : strcmp(a->path, b->path); if (r != 0) return r; return strcmp(a->type, b->type); } static int socket_info_add( sd_bus *bus, const UnitInfo *u, SocketInfo **sockets, size_t *n_sockets) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_strv_free_ char **triggered = NULL; const char *type, *path; int r; assert(bus); assert(u); assert(sockets); assert(n_sockets); if (!endswith(u->id, ".socket")) return 0; r = get_triggered_units(bus, u->unit_path, &triggered); if (r < 0) return r; r = sd_bus_get_property( bus, "org.freedesktop.systemd1", u->unit_path, "org.freedesktop.systemd1.Socket", "Listen", &error, &reply, "a(ss)"); if (r < 0) return log_error_errno(r, "Failed to get list of listening sockets: %s", bus_error_message(&error, r)); r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(reply, "(ss)", &type, &path)) > 0) { _cleanup_free_ char *type_dup = NULL, *path_dup = NULL; _cleanup_strv_free_ char **triggered_dup = NULL; type_dup = strdup(type); if (!type_dup) return log_oom(); path_dup = strdup(path); if (!path_dup) return log_oom(); triggered_dup = strv_copy(triggered); if (!triggered_dup) return log_oom(); if (!GREEDY_REALLOC(*sockets, *n_sockets + 1)) return log_oom(); (*sockets)[(*n_sockets)++] = (SocketInfo) { .machine = u->machine, .id = u->id, .type = TAKE_PTR(type_dup), .path = TAKE_PTR(path_dup), .triggered = TAKE_PTR(triggered_dup), }; } if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); return 0; } static int output_sockets_list(const SocketInfo *sockets, size_t n_sockets) { _cleanup_(table_unrefp) Table *table = NULL; int r; assert(sockets || n_sockets == 0); table = table_new("listen", "type", "unit", "activates"); if (!table) return log_oom(); if (!arg_show_types) { /* Hide the second (TYPE) column */ r = table_set_display(table, (size_t) 0, (size_t) 2, (size_t) 3); if (r < 0) return log_error_errno(r, "Failed to set columns to display: %m"); } table_set_header(table, arg_legend != 0); if (arg_full) table_set_width(table, 0); table_set_ersatz_string(table, TABLE_ERSATZ_DASH); FOREACH_ARRAY(s, sockets, n_sockets) { _cleanup_free_ char *unit = NULL; unit = format_unit_id(s->id, s->machine); if (!unit) return log_oom(); r = table_add_many(table, TABLE_STRING, s->path, TABLE_STRING, s->type, TABLE_STRING, unit); if (r < 0) return table_log_add_error(r); r = table_add_triggered(table, s->triggered); if (r < 0) return table_log_add_error(r); } r = output_table(table); if (r < 0) return r; if (arg_legend != 0) output_legend("socket", n_sockets); return 0; } int verb_list_sockets(int argc, char *argv[], void *userdata) { _cleanup_set_free_ Set *replies = NULL; _cleanup_strv_free_ char **sockets_with_suffix = NULL; _cleanup_free_ UnitInfo *unit_infos = NULL; SocketInfo *sockets = NULL; size_t n_sockets = 0; sd_bus *bus; int r; CLEANUP_ARRAY(sockets, n_sockets, socket_info_array_free); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; pager_open(arg_pager_flags); r = expand_unit_names(bus, strv_skip(argv, 1), ".socket", &sockets_with_suffix, NULL); if (r < 0) return r; if (argc == 1 || sockets_with_suffix) { int n; n = get_unit_list_recursive(bus, sockets_with_suffix, &unit_infos, &replies); if (n < 0) return n; FOREACH_ARRAY(u, unit_infos, n) { r = socket_info_add(bus, u, &sockets, &n_sockets); if (r < 0) return r; } } typesafe_qsort(sockets, n_sockets, socket_info_compare); output_sockets_list(sockets, n_sockets); return 0; } static int get_next_elapse( sd_bus *bus, const char *path, dual_timestamp *next) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; dual_timestamp t; int r; assert(bus); assert(path); assert(next); r = sd_bus_get_property_trivial( bus, "org.freedesktop.systemd1", path, "org.freedesktop.systemd1.Timer", "NextElapseUSecMonotonic", &error, 't', &t.monotonic); if (r < 0) return log_error_errno(r, "Failed to get next elapse time: %s", bus_error_message(&error, r)); r = sd_bus_get_property_trivial( bus, "org.freedesktop.systemd1", path, "org.freedesktop.systemd1.Timer", "NextElapseUSecRealtime", &error, 't', &t.realtime); if (r < 0) return log_error_errno(r, "Failed to get next elapse time: %s", bus_error_message(&error, r)); *next = t; return 0; } static int get_last_trigger( sd_bus *bus, const char *path, usec_t *last) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; int r; assert(bus); assert(path); assert(last); r = sd_bus_get_property_trivial( bus, "org.freedesktop.systemd1", path, "org.freedesktop.systemd1.Timer", "LastTriggerUSec", &error, 't', last); if (r < 0) return log_error_errno(r, "Failed to get last trigger time: %s", bus_error_message(&error, r)); return 0; } typedef struct TimerInfo { const char* machine; const char* id; usec_t next_elapse; usec_t last_trigger; char **triggered; } TimerInfo; static void timer_info_array_free(TimerInfo *timers, size_t n_timers) { assert(timers || n_timers == 0); FOREACH_ARRAY(t, timers, n_timers) strv_free(t->triggered); free(timers); } static int timer_info_compare(const TimerInfo *a, const TimerInfo *b) { int r; assert(a); assert(b); r = strcasecmp_ptr(a->machine, b->machine); if (r != 0) return r; r = CMP(a->next_elapse, b->next_elapse); if (r != 0) return r; return strcmp(a->id, b->id); } static int output_timers_list(const TimerInfo *timers, size_t n_timers) { _cleanup_(table_unrefp) Table *table = NULL; int r; assert(timers || n_timers == 0); table = table_new("next", "left", "last", "passed", "unit", "activates"); if (!table) return log_oom(); table_set_header(table, arg_legend != 0); if (arg_full) table_set_width(table, 0); table_set_ersatz_string(table, TABLE_ERSATZ_DASH); (void) table_set_align_percent(table, table_get_cell(table, 0, 1), 100); (void) table_set_align_percent(table, table_get_cell(table, 0, 3), 100); FOREACH_ARRAY(t, timers, n_timers) { _cleanup_free_ char *unit = NULL; unit = format_unit_id(t->id, t->machine); if (!unit) return log_oom(); r = table_add_many(table, TABLE_TIMESTAMP, t->next_elapse, TABLE_TIMESTAMP_LEFT, t->next_elapse, TABLE_TIMESTAMP, t->last_trigger, TABLE_TIMESTAMP_RELATIVE, t->last_trigger, TABLE_STRING, unit); if (r < 0) return table_log_add_error(r); r = table_add_triggered(table, t->triggered); if (r < 0) return table_log_add_error(r); } r = output_table(table); if (r < 0) return r; if (arg_legend != 0) output_legend("timer", n_timers); return 0; } usec_t calc_next_elapse(const dual_timestamp *nw, const dual_timestamp *next) { usec_t next_elapse; assert(nw); assert(next); if (timestamp_is_set(next->monotonic)) { usec_t converted; if (next->monotonic > nw->monotonic) converted = nw->realtime + (next->monotonic - nw->monotonic); else converted = nw->realtime - (nw->monotonic - next->monotonic); if (timestamp_is_set(next->realtime)) next_elapse = MIN(converted, next->realtime); else next_elapse = converted; } else next_elapse = next->realtime; return next_elapse; } static int add_timer_info( sd_bus *bus, const UnitInfo *u, const dual_timestamp *nw, TimerInfo **timers, size_t *n_timers) { _cleanup_strv_free_ char **triggered = NULL; dual_timestamp next = DUAL_TIMESTAMP_NULL; usec_t m, last = 0; int r; assert(bus); assert(u); assert(nw); assert(timers); assert(n_timers); if (!endswith(u->id, ".timer")) return 0; r = get_triggered_units(bus, u->unit_path, &triggered); if (r < 0) return r; r = get_next_elapse(bus, u->unit_path, &next); if (r < 0) return r; r = get_last_trigger(bus, u->unit_path, &last); if (r < 0) return r; m = calc_next_elapse(nw, &next); if (!GREEDY_REALLOC(*timers, *n_timers + 1)) return log_oom(); (*timers)[(*n_timers)++] = (TimerInfo) { .machine = u->machine, .id = u->id, .next_elapse = m, .last_trigger = last, .triggered = TAKE_PTR(triggered), }; return 0; } int verb_list_timers(int argc, char *argv[], void *userdata) { _cleanup_set_free_ Set *replies = NULL; _cleanup_strv_free_ char **timers_with_suffix = NULL; _cleanup_free_ UnitInfo *unit_infos = NULL; TimerInfo *timers = NULL; size_t n_timers = 0; sd_bus *bus; int r; CLEANUP_ARRAY(timers, n_timers, timer_info_array_free); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; pager_open(arg_pager_flags); r = expand_unit_names(bus, strv_skip(argv, 1), ".timer", &timers_with_suffix, NULL); if (r < 0) return r; if (argc == 1 || timers_with_suffix) { dual_timestamp nw; int n; n = get_unit_list_recursive(bus, timers_with_suffix, &unit_infos, &replies); if (n < 0) return n; dual_timestamp_get(&nw); FOREACH_ARRAY(u, unit_infos, n) { r = add_timer_info(bus, u, &nw, &timers, &n_timers); if (r < 0) return r; } } typesafe_qsort(timers, n_timers, timer_info_compare); output_timers_list(timers, n_timers); return 0; } typedef struct AutomountInfo { const char *machine; const char *id; char *what; char *where; usec_t timeout_idle_usec; bool mounted; } AutomountInfo; static void automount_info_array_free(AutomountInfo *automounts, size_t n_automounts) { assert(automounts || n_automounts == 0); FOREACH_ARRAY(i, automounts, n_automounts) { free(i->what); free(i->where); } free(automounts); } static int automount_info_compare(const AutomountInfo *a, const AutomountInfo *b) { int r; assert(a); assert(b); r = strcasecmp_ptr(a->machine, b->machine); if (r != 0) return r; return path_compare(a->where, b->where); } static int automount_info_add( sd_bus* bus, const UnitInfo *info, AutomountInfo **automounts, size_t *n_automounts) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_free_ char *mount = NULL, *mount_path = NULL, *where = NULL, *what = NULL, *state = NULL; uint64_t timeout_idle_usec; BusLocator locator; int r; assert(bus); assert(info); assert(automounts); assert(n_automounts); if (!endswith(info->id, ".automount")) return 0; locator = (BusLocator) { .destination = "org.freedesktop.systemd1", .path = info->unit_path, .interface = "org.freedesktop.systemd1.Automount", }; r = bus_get_property_string(bus, &locator, "Where", &error, &where); if (r < 0) return log_error_errno(r, "Failed to get automount target: %s", bus_error_message(&error, r)); r = bus_get_property_trivial(bus, &locator, "TimeoutIdleUSec", &error, 't', &timeout_idle_usec); if (r < 0) return log_error_errno(r, "Failed to get idle timeout: %s", bus_error_message(&error, r)); r = unit_name_from_path(where, ".mount", &mount); if (r < 0) return log_error_errno(r, "Failed to generate unit name from path: %m"); mount_path = unit_dbus_path_from_name(mount); if (!mount_path) return log_oom(); locator.path = mount_path; locator.interface = "org.freedesktop.systemd1.Mount"; r = bus_get_property_string(bus, &locator, "What", &error, &what); if (r < 0) return log_error_errno(r, "Failed to get mount source: %s", bus_error_message(&error, r)); locator.interface = "org.freedesktop.systemd1.Unit"; r = bus_get_property_string(bus, &locator, "ActiveState", &error, &state); if (r < 0) return log_error_errno(r, "Failed to get mount state: %s", bus_error_message(&error, r)); if (!GREEDY_REALLOC(*automounts, *n_automounts + 1)) return log_oom(); (*automounts)[(*n_automounts)++] = (AutomountInfo) { .machine = info->machine, .id = info->id, .what = TAKE_PTR(what), .where = TAKE_PTR(where), .timeout_idle_usec = timeout_idle_usec, .mounted = streq_ptr(state, "active"), }; return 0; } static int output_automounts_list(const AutomountInfo *infos, size_t n_infos) { _cleanup_(table_unrefp) Table *table = NULL; int r; assert(infos || n_infos == 0); table = table_new("what", "where", "mounted", "idle timeout", "unit"); if (!table) return log_oom(); table_set_header(table, arg_legend != 0); if (arg_full) table_set_width(table, 0); table_set_ersatz_string(table, TABLE_ERSATZ_DASH); FOREACH_ARRAY(info, infos, n_infos) { _cleanup_free_ char *unit = NULL; unit = format_unit_id(info->id, info->machine); if (!unit) return log_oom(); r = table_add_many(table, TABLE_STRING, info->what, TABLE_STRING, info->where, TABLE_BOOLEAN, info->mounted); if (r < 0) return table_log_add_error(r); if (timestamp_is_set(info->timeout_idle_usec)) r = table_add_cell(table, NULL, TABLE_TIMESPAN_MSEC, &info->timeout_idle_usec); else r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return table_log_add_error(r); r = table_add_cell(table, NULL, TABLE_STRING, unit); if (r < 0) return table_log_add_error(r); } r = output_table(table); if (r < 0) return r; if (arg_legend != 0) output_legend("automount", n_infos); return 0; } int verb_list_automounts(int argc, char *argv[], void *userdata) { _cleanup_set_free_ Set *replies = NULL; _cleanup_strv_free_ char **names = NULL; _cleanup_free_ UnitInfo *unit_infos = NULL; AutomountInfo *automounts = NULL; size_t n_automounts = 0; sd_bus *bus; int r; CLEANUP_ARRAY(automounts, n_automounts, automount_info_array_free); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; pager_open(arg_pager_flags); r = expand_unit_names(bus, strv_skip(argv, 1), ".automount", &names, NULL); if (r < 0) return r; if (argc == 1 || automounts) { int n; n = get_unit_list_recursive(bus, names, &unit_infos, &replies); if (n < 0) return n; FOREACH_ARRAY(u, unit_infos, n) { r = automount_info_add(bus, u, &automounts, &n_automounts); if (r < 0) return r; } } typesafe_qsort(automounts, n_automounts, automount_info_compare); output_automounts_list(automounts, n_automounts); return 0; } typedef struct PathInfo { const char *machine; const char *id; char *path; char *condition; /* Note: triggered is a list here, although it almost certainly will always be one * unit. Nevertheless, dbus API allows for multiple values, so let's follow that. */ char** triggered; } PathInfo; static int path_info_compare(const PathInfo *a, const PathInfo *b) { int r; assert(a); assert(b); r = strcasecmp_ptr(a->machine, b->machine); if (r != 0) return r; r = path_compare(a->path, b->path); if (r != 0) return r; r = strcmp(a->condition, b->condition); if (r != 0) return r; return strcasecmp_ptr(a->id, b->id); } static void path_info_array_free(PathInfo *paths, size_t n_paths) { assert(paths || n_paths == 0); FOREACH_ARRAY(p, paths, n_paths) { free(p->condition); free(p->path); strv_free(p->triggered); } free(paths); } static int path_info_add( sd_bus *bus, const struct UnitInfo *u, PathInfo **paths, size_t *n_paths) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_strv_free_ char **triggered = NULL; const char *condition, *path; int r; assert(bus); assert(u); assert(paths); assert(n_paths); if (!endswith(u->id, ".path")) return 0; r = get_triggered_units(bus, u->unit_path, &triggered); if (r < 0) return r; r = sd_bus_get_property(bus, "org.freedesktop.systemd1", u->unit_path, "org.freedesktop.systemd1.Path", "Paths", &error, &reply, "a(ss)"); if (r < 0) return log_error_errno(r, "Failed to get paths: %s", bus_error_message(&error, r)); r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(reply, "(ss)", &condition, &path)) > 0) { _cleanup_free_ char *condition_dup = NULL, *path_dup = NULL; _cleanup_strv_free_ char **triggered_dup = NULL; condition_dup = strdup(condition); if (!condition_dup) return log_oom(); path_dup = strdup(path); if (!path_dup) return log_oom(); triggered_dup = strv_copy(triggered); if (!triggered_dup) return log_oom(); if (!GREEDY_REALLOC(*paths, *n_paths + 1)) return log_oom(); (*paths)[(*n_paths)++] = (PathInfo) { .machine = u->machine, .id = u->id, .condition = TAKE_PTR(condition_dup), .path = TAKE_PTR(path_dup), .triggered = TAKE_PTR(triggered_dup), }; } if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); return 0; } static int output_paths_list(const PathInfo *paths, size_t n_paths) { _cleanup_(table_unrefp) Table *table = NULL; int r; assert(paths || n_paths == 0); table = table_new("path", "condition", "unit", "activates"); if (!table) return log_oom(); table_set_header(table, arg_legend != 0); if (arg_full) table_set_width(table, 0); table_set_ersatz_string(table, TABLE_ERSATZ_DASH); FOREACH_ARRAY(p, paths, n_paths) { _cleanup_free_ char *unit = NULL; unit = format_unit_id(p->id, p->machine); if (!unit) return log_oom(); r = table_add_many(table, TABLE_STRING, p->path, TABLE_STRING, p->condition, TABLE_STRING, unit); if (r < 0) return table_log_add_error(r); r = table_add_triggered(table, p->triggered); if (r < 0) return table_log_add_error(r); } r = output_table(table); if (r < 0) return r; if (arg_legend != 0) output_legend("path", n_paths); return 0; } int verb_list_paths(int argc, char *argv[], void *userdata) { _cleanup_set_free_ Set *replies = NULL; _cleanup_strv_free_ char **units = NULL; _cleanup_free_ UnitInfo *unit_infos = NULL; PathInfo *paths = NULL; size_t n_paths = 0; sd_bus *bus; int r; CLEANUP_ARRAY(paths, n_paths, path_info_array_free); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; pager_open(arg_pager_flags); r = expand_unit_names(bus, strv_skip(argv, 1), ".path", &units, NULL); if (r < 0) return r; if (argc == 1 || units) { int n; n = get_unit_list_recursive(bus, units, &unit_infos, &replies); if (n < 0) return n; FOREACH_ARRAY(u, unit_infos, n) { r = path_info_add(bus, u, &paths, &n_paths); if (r < 0) return r; } } typesafe_qsort(paths, n_paths, path_info_compare); output_paths_list(paths, n_paths); return 0; }