+struct machine_info {
+ bool is_host;
+ char *name;
+ char *state;
+ char *control_group;
+ uint32_t n_failed_units;
+ uint32_t n_jobs;
+ usec_t timestamp;
+};
+
+static const struct bus_properties_map machine_info_property_map[] = {
+ { "SystemState", "s", NULL, offsetof(struct machine_info, state) },
+ { "NJobs", "u", NULL, offsetof(struct machine_info, n_jobs) },
+ { "NFailedUnits", "u", NULL, offsetof(struct machine_info, n_failed_units) },
+ { "ControlGroup", "s", NULL, offsetof(struct machine_info, control_group) },
+ { "UserspaceTimestamp", "t", NULL, offsetof(struct machine_info, timestamp) },
+ {}
+};
+
+static void free_machines_list(struct machine_info *machine_infos, int n) {
+ int i;
+
+ if (!machine_infos)
+ return;
+
+ for (i = 0; i < n; i++) {
+ free(machine_infos[i].name);
+ free(machine_infos[i].state);
+ free(machine_infos[i].control_group);
+ }
+
+ free(machine_infos);
+}
+
+static int compare_machine_info(const void *a, const void *b) {
+ const struct machine_info *u = a, *v = b;
+
+ if (u->is_host != v->is_host)
+ return u->is_host > v->is_host ? 1 : -1;
+
+ return strcasecmp(u->name, v->name);
+}
+
+static int get_machine_properties(sd_bus *bus, struct machine_info *mi) {
+ _cleanup_bus_unref_ sd_bus *container = NULL;
+ int r;
+
+ assert(mi);
+
+ if (!bus) {
+ r = sd_bus_open_system_container(&container, mi->name);
+ if (r < 0)
+ return r;
+
+ bus = container;
+ }
+
+ r = bus_map_all_properties(bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", machine_info_property_map, mi);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+static bool output_show_machine(const char *name, char **patterns) {
+ char **i;
+
+ assert(name);
+
+ if (strv_isempty(patterns))
+ return true;
+
+ STRV_FOREACH(i, patterns)
+ if (fnmatch(*i, name, FNM_NOESCAPE) == 0)
+ return true;
+
+ return false;
+}
+
+static int get_machine_list(
+ sd_bus *bus,
+ struct machine_info **_machine_infos,
+ char **patterns) {
+
+ struct machine_info *machine_infos = NULL;
+ _cleanup_strv_free_ char **m = NULL;
+ _cleanup_free_ char *hn = NULL;
+ size_t sz = 0;
+ char **i;
+ int c = 0;
+
+ hn = gethostname_malloc();
+ if (!hn)
+ return log_oom();
+
+ if (output_show_machine(hn, patterns)) {
+ if (!GREEDY_REALLOC0(machine_infos, sz, c+1))
+ return log_oom();
+
+ machine_infos[c].is_host = true;
+ machine_infos[c].name = hn;
+ hn = NULL;
+
+ get_machine_properties(bus, &machine_infos[c]);
+ c++;
+ }
+
+ sd_get_machine_names(&m);
+ STRV_FOREACH(i, m) {
+ _cleanup_free_ char *class = NULL;
+
+ if (!output_show_machine(*i, patterns))
+ continue;
+
+ sd_machine_get_class(*i, &class);
+ if (!streq_ptr(class, "container"))
+ continue;
+
+ if (!GREEDY_REALLOC0(machine_infos, sz, c+1)) {
+ free_machines_list(machine_infos, c);
+ return log_oom();
+ }
+
+ machine_infos[c].is_host = false;
+ machine_infos[c].name = strdup(*i);
+ if (!machine_infos[c].name) {
+ free_machines_list(machine_infos, c);
+ return log_oom();
+ }
+
+ get_machine_properties(NULL, &machine_infos[c]);
+ c++;
+ }
+
+ *_machine_infos = machine_infos;
+ return c;
+}
+
+static void output_machines_list(struct machine_info *machine_infos, unsigned n) {
+ struct machine_info *m;
+ unsigned
+ circle_len = 0,
+ namelen = sizeof("NAME") - 1,
+ statelen = sizeof("STATE") - 1,
+ failedlen = sizeof("FAILED") - 1,
+ jobslen = sizeof("JOBS") - 1;
+
+ assert(machine_infos || n == 0);
+
+ for (m = machine_infos; m < machine_infos + n; m++) {
+ namelen = MAX(namelen, strlen(m->name) + (m->is_host ? sizeof(" (host)") - 1 : 0));
+ statelen = MAX(statelen, m->state ? strlen(m->state) : 0);
+ failedlen = MAX(failedlen, DECIMAL_STR_WIDTH(m->n_failed_units));
+ jobslen = MAX(jobslen, DECIMAL_STR_WIDTH(m->n_jobs));
+
+ if (!arg_no_legend && !streq_ptr(m->state, "running"))
+ circle_len = 2;
+ }
+
+ if (!arg_no_legend) {
+ if (circle_len > 0)
+ fputs(" ", stdout);
+
+ printf("%-*s %-*s %-*s %-*s\n",
+ namelen, "NAME",
+ statelen, "STATE",
+ failedlen, "FAILED",
+ jobslen, "JOBS");
+ }
+
+ for (m = machine_infos; m < machine_infos + n; m++) {
+ const char *on_state = "", *off_state = "";
+ const char *on_failed = "", *off_failed = "";
+ bool circle = false;
+
+ if (streq_ptr(m->state, "degraded")) {
+ on_state = ansi_highlight_red();
+ off_state = ansi_highlight_off();
+ circle = true;
+ } else if (!streq_ptr(m->state, "running")) {
+ on_state = ansi_highlight_yellow();
+ off_state = ansi_highlight_off();
+ circle = true;
+ }
+
+ if (m->n_failed_units > 0) {
+ on_failed = ansi_highlight_red();
+ off_failed = ansi_highlight_off();
+ } else
+ on_failed = off_failed = "";
+
+ if (circle_len > 0)
+ printf("%s%s%s", on_state, circle ? draw_special_char(DRAW_BLACK_CIRCLE) : " ", off_state);
+
+ if (m->is_host)
+ printf("%-*s (host) %s%-*s%s %s%*u%s %*u\n",
+ (int) (namelen - (sizeof(" (host)")-1)), strna(m->name),
+ on_state, statelen, strna(m->state), off_state,
+ on_failed, failedlen, m->n_failed_units, off_failed,
+ jobslen, m->n_jobs);
+ else
+ printf("%-*s %s%-*s%s %s%*u%s %*u\n",
+ namelen, strna(m->name),
+ on_state, statelen, strna(m->state), off_state,
+ on_failed, failedlen, m->n_failed_units, off_failed,
+ jobslen, m->n_jobs);
+ }
+
+ if (!arg_no_legend)
+ printf("\n%u machines listed.\n", n);
+}
+
+static int list_machines(sd_bus *bus, char **args) {
+ struct machine_info *machine_infos = NULL;
+ int r;
+
+ assert(bus);
+
+ if (geteuid() != 0) {
+ log_error("Must be root.");
+ return -EPERM;
+ }
+
+ pager_open_if_enabled();
+
+ r = get_machine_list(bus, &machine_infos, strv_skip_first(args));
+ if (r < 0)
+ return r;
+
+ qsort_safe(machine_infos, r, sizeof(struct machine_info), compare_machine_info);
+ output_machines_list(machine_infos, r);
+ free_machines_list(machine_infos, r);
+
+ return 0;
+}
+