X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fsystemctl.c;h=acb89a5a8767719027acaf279dd5d3f47dbd9652;hp=a9a975ee8188648ceb775d5b3ce0e6e1bc801986;hb=5632e3743db350a67478acc107d76cdf648a1f99;hpb=fa776d8e962da9d90459e2f3e86a2a0c6366ee12 diff --git a/src/systemctl.c b/src/systemctl.c index a9a975ee8..acb89a5a8 100644 --- a/src/systemctl.c +++ b/src/systemctl.c @@ -43,11 +43,13 @@ #include "strv.h" #include "dbus-common.h" #include "cgroup-show.h" +#include "cgroup-util.h" +#include "list.h" static const char *arg_type = NULL; static const char *arg_property = NULL; static bool arg_all = false; -static bool arg_replace = false; +static bool arg_fail = false; static bool arg_session = false; static bool arg_no_block = false; static bool arg_immediate = false; @@ -57,7 +59,7 @@ static bool arg_no_wall = false; static bool arg_dry = false; static bool arg_quiet = false; static char **arg_wall = NULL; -enum action { +static enum action { ACTION_INVALID, ACTION_SYSTEMCTL, ACTION_HALT, @@ -75,6 +77,11 @@ enum action { ACTION_RUNLEVEL, _ACTION_MAX } arg_action = ACTION_SYSTEMCTL; +static enum dot { + DOT_ALL, + DOT_ORDER, + DOT_REQUIRE +} arg_dot = DOT_ALL; static bool private_bus = false; @@ -181,10 +188,11 @@ static int list_units(DBusConnection *bus, char **args, unsigned n) { dbus_message_iter_recurse(&iter, &sub); - printf("%-45s %-6s %-12s %-12s %-15s %s\n", "UNIT", "LOAD", "ACTIVE", "SUB", "JOB", "DESCRIPTION"); + if (isatty(STDOUT_FILENO)) + printf("%-45s %-6s %-12s %-12s %-15s %s\n", "UNIT", "LOAD", "ACTIVE", "SUB", "JOB", "DESCRIPTION"); while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { - const char *id, *description, *load_state, *active_state, *sub_state, *unit_state, *job_type, *job_path, *dot; + const char *id, *description, *load_state, *active_state, *sub_state, *unit_path, *job_type, *job_path, *dot; uint32_t job_id; if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) { @@ -200,7 +208,7 @@ static int list_units(DBusConnection *bus, char **args, unsigned n) { bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 || - bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_state, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0 || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &job_id, true) < 0 || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &job_type, true) < 0 || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, false) < 0) { @@ -211,7 +219,7 @@ static int list_units(DBusConnection *bus, char **args, unsigned n) { if ((!arg_type || ((dot = strrchr(id, '.')) && streq(dot+1, arg_type))) && - (arg_all || !streq(active_state, "inactive"))) { + (arg_all || !streq(active_state, "inactive") || job_id > 0)) { int a = 0, b = 0; @@ -221,7 +229,7 @@ static int list_units(DBusConnection *bus, char **args, unsigned n) { printf("%-45s %-6s %-12s %-12s%n", id, load_state, active_state, sub_state, &a); if (job_id != 0) - printf(" %-15s%n", job_type, &b); + printf(" => %-12s%n", job_type, &b); else b = 1 + 15; @@ -242,10 +250,258 @@ static int list_units(DBusConnection *bus, char **args, unsigned n) { dbus_message_iter_next(&sub); } - if (arg_all) - printf("\n%u units listed.\n", k); - else - printf("\n%u live units listed. Pass --all to see dead units, too.\n", k); + if (isatty(STDOUT_FILENO)) { + + printf("\nLOAD = Load State, reflects whether the unit configuration was properly loaded.\n" + "ACTIVE = Active State, the high-level unit activation state, i.e. generalization of the substate.\n" + "SUB = Substate, the low-level unit activation state, possible values depend on unit type.\n" + "JOB = Job, shows pending jobs for the unit.\n"); + + if (arg_all) + printf("\n%u units listed.\n", k); + else + printf("\n%u units listed. Pass --all to see inactive units, too.\n", k); + } + + r = 0; + +finish: + if (m) + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + + dbus_error_free(&error); + + return r; +} + +static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) { + static const char * const colors[] = { + "Requires", "[color=\"black\"]", + "RequiresOverridable", "[color=\"black\"]", + "Requisite", "[color=\"darkblue\"]", + "RequisiteOverridable", "[color=\"darkblue\"]", + "Wants", "[color=\"darkgrey\"]", + "Conflicts", "[color=\"red\"]", + "After", "[color=\"green\"]" + }; + + const char *c = NULL; + unsigned i; + + assert(name); + assert(prop); + assert(iter); + + for (i = 0; i < ELEMENTSOF(colors); i += 2) + if (streq(colors[i], prop)) { + c = colors[i+1]; + break; + } + + if (!c) + return 0; + + if (arg_dot != DOT_ALL) + if ((arg_dot == DOT_ORDER) != streq(prop, "After")) + return 0; + + switch (dbus_message_iter_get_arg_type(iter)) { + + case DBUS_TYPE_ARRAY: + + if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) { + DBusMessageIter sub; + + dbus_message_iter_recurse(iter, &sub); + + while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { + const char *s; + + assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING); + dbus_message_iter_get_basic(&sub, &s); + printf("\t\"%s\"->\"%s\" %s;\n", name, s, c); + + dbus_message_iter_next(&sub); + } + + return 0; + } + } + + return 0; +} + +static int dot_one(DBusConnection *bus, const char *name, const char *path) { + DBusMessage *m = NULL, *reply = NULL; + const char *interface = "org.freedesktop.systemd1.Unit"; + int r; + DBusError error; + DBusMessageIter iter, sub, sub2, sub3; + + assert(bus); + assert(path); + + dbus_error_init(&error); + + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + path, + "org.freedesktop.DBus.Properties", + "GetAll"))) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &interface, + DBUS_TYPE_INVALID)) { + log_error("Could not append arguments to message."); + r = -ENOMEM; + goto finish; + } + + if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { + log_error("Failed to issue method call: %s", error.message); + r = -EIO; + goto finish; + } + + if (!dbus_message_iter_init(reply, &iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || + dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_recurse(&iter, &sub); + + while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { + const char *prop; + + if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_recurse(&sub, &sub2); + + if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_recurse(&sub2, &sub3); + + if (dot_one_property(name, prop, &sub3)) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_next(&sub); + } + +finish: + if (m) + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + + dbus_error_free(&error); + + return r; +} + +static int dot(DBusConnection *bus, char **args, unsigned n) { + DBusMessage *m = NULL, *reply = NULL; + DBusError error; + int r; + DBusMessageIter iter, sub, sub2; + + dbus_error_init(&error); + + assert(bus); + + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "ListUnits"))) { + log_error("Could not allocate message."); + return -ENOMEM; + } + + if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { + log_error("Failed to issue method call: %s", error.message); + r = -EIO; + goto finish; + } + + if (!dbus_message_iter_init(reply, &iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || + dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + printf("digraph systemd {\n"); + + dbus_message_iter_recurse(&iter, &sub); + while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { + const char *id, *description, *load_state, *active_state, *sub_state, *unit_path; + + if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_recurse(&sub, &sub2); + + if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + if ((r = dot_one(bus, id, unit_path)) < 0) + goto finish; + + /* printf("\t\"%s\";\n", id); */ + dbus_message_iter_next(&sub); + } + + printf("}\n"); + + log_info(" Color legend: black = Requires\n" + " dark blue = Requisite\n" + " dark grey = Wants\n" + " red = Conflicts\n" + " green = After\n"); + + if (isatty(fileno(stdout))) + log_notice("-- You probably want to process this output with graphviz' dot tool.\n" + "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n"); r = 0; @@ -490,6 +746,77 @@ finish: return r; } +static bool unit_need_daemon_reload(DBusConnection *bus, const char *unit) { + DBusMessage *m, *reply; + dbus_bool_t b = FALSE; + DBusMessageIter iter, sub; + const char + *interface = "org.freedesktop.systemd1.Unit", + *property = "NeedDaemonReload", + *path; + + /* We ignore all errors here, since this is used to show a warning only */ + + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "GetUnit"))) + goto finish; + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &unit, + DBUS_TYPE_INVALID)) + goto finish; + + if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL))) + goto finish; + + if (!dbus_message_get_args(reply, NULL, + DBUS_TYPE_OBJECT_PATH, &path, + DBUS_TYPE_INVALID)) + goto finish; + + dbus_message_unref(m); + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + path, + "org.freedesktop.DBus.Properties", + "Get"))) + goto finish; + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &interface, + DBUS_TYPE_STRING, &property, + DBUS_TYPE_INVALID)) { + goto finish; + } + + dbus_message_unref(reply); + if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL))) + goto finish; + + if (!dbus_message_iter_init(reply, &iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) + goto finish; + + dbus_message_iter_recurse(&iter, &sub); + + if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN) + goto finish; + + dbus_message_iter_get_basic(&sub, &b); + +finish: + if (m) + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + + return b; +} + typedef struct WaitData { Set *set; bool failed; @@ -608,6 +935,7 @@ static int start_unit_one( DBusMessage *m = NULL, *reply = NULL; DBusError error; + const char *path; int r; assert(bus); @@ -651,18 +979,21 @@ static int start_unit_one( goto finish; } + if (!dbus_message_get_args(reply, &error, + DBUS_TYPE_OBJECT_PATH, &path, + DBUS_TYPE_INVALID)) { + log_error("Failed to parse reply: %s", error.message); + r = -EIO; + goto finish; + } + + if (unit_need_daemon_reload(bus, name)) + log_warning("Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.", + arg_session ? "--session" : "--system"); + if (!arg_no_block) { - const char *path; char *p; - if (!dbus_message_get_args(reply, &error, - DBUS_TYPE_OBJECT_PATH, &path, - DBUS_TYPE_INVALID)) { - log_error("Failed to parse reply: %s", error.message); - r = -EIO; - goto finish; - } - if (!(p = strdup(path))) { log_error("Failed to duplicate path."); r = -ENOMEM; @@ -718,7 +1049,7 @@ static int start_unit(DBusConnection *bus, char **args, unsigned n) { [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET, [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET, [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET, - [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_SERVICE, + [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET, [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET }; @@ -731,17 +1062,20 @@ static int start_unit(DBusConnection *bus, char **args, unsigned n) { if (arg_action == ACTION_SYSTEMCTL) { method = - streq(args[0], "stop") ? "StopUnit" : - streq(args[0], "reload") ? "ReloadUnit" : - streq(args[0], "restart") ? "RestartUnit" : - "StartUnit"; + streq(args[0], "stop") ? "StopUnit" : + streq(args[0], "reload") ? "ReloadUnit" : + streq(args[0], "restart") ? "RestartUnit" : + streq(args[0], "try-restart") ? "TryRestartUnit" : + streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" : + streq(args[0], "reload-or-try-restart") ? "ReloadOrTryRestartUnit" : + "StartUnit"; mode = (streq(args[0], "isolate") || streq(args[0], "rescue") || streq(args[0], "emergency")) ? "isolate" : - arg_replace ? "replace" : - "fail"; + arg_fail ? "fail" : + "replace"; one_name = table[verb_to_action(args[0])]; @@ -792,12 +1126,17 @@ finish: } static int start_special(DBusConnection *bus, char **args, unsigned n) { + int r; + assert(bus); assert(args); - warn_wall(verb_to_action(args[0])); + r = start_unit(bus, args, n); + + if (r >= 0) + warn_wall(verb_to_action(args[0])); - return start_unit(bus, args, n); + return r; } static int check_unit(DBusConnection *bus, char **args, unsigned n) { @@ -922,6 +1261,100 @@ finish: return r; } +typedef struct ExecStatusInfo { + char *path; + char **argv; + + bool ignore; + + usec_t start_timestamp; + usec_t exit_timestamp; + pid_t pid; + int code; + int status; + + LIST_FIELDS(struct ExecStatusInfo, exec); +} ExecStatusInfo; + +static void exec_status_info_free(ExecStatusInfo *i) { + assert(i); + + free(i->path); + strv_free(i->argv); + free(i); +} + +static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) { + uint64_t start_timestamp, exit_timestamp; + DBusMessageIter sub2, sub3; + const char*path; + unsigned n; + uint32_t pid; + int32_t code, status; + dbus_bool_t ignore; + + assert(i); + assert(i); + + if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT) + return -EIO; + + dbus_message_iter_recurse(sub, &sub2); + + if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0) + return -EIO; + + if (!(i->path = strdup(path))) + return -ENOMEM; + + if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY || + dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING) + return -EIO; + + n = 0; + dbus_message_iter_recurse(&sub2, &sub3); + while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) { + assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING); + dbus_message_iter_next(&sub3); + n++; + } + + + if (!(i->argv = new0(char*, n+1))) + return -ENOMEM; + + n = 0; + dbus_message_iter_recurse(&sub2, &sub3); + while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) { + const char *s; + + assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING); + dbus_message_iter_get_basic(&sub3, &s); + dbus_message_iter_next(&sub3); + + if (!(i->argv[n++] = strdup(s))) + return -ENOMEM; + } + + if (!dbus_message_iter_next(&sub2) || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0) + return -EIO; + + i->ignore = ignore; + i->start_timestamp = (usec_t) start_timestamp; + i->exit_timestamp = (usec_t) exit_timestamp; + i->pid = (pid_t) pid; + i->code = code; + i->status = status; + + return 0; +} + typedef struct UnitStatusInfo { const char *id; const char *load_state; @@ -933,6 +1366,8 @@ typedef struct UnitStatusInfo { const char *fragment_path; const char *default_control_group; + bool need_daemon_reload; + /* Service */ pid_t main_pid; pid_t control_pid; @@ -947,6 +1382,7 @@ typedef struct UnitStatusInfo { /* Socket */ unsigned n_accepted; unsigned n_connections; + bool accept; /* Device */ const char *sysfs_path; @@ -956,9 +1392,13 @@ typedef struct UnitStatusInfo { /* Swap */ const char *what; + + LIST_HEAD(ExecStatusInfo, exec); } UnitStatusInfo; static void print_status_info(UnitStatusInfo *i) { + ExecStatusInfo *p; + assert(i); /* This shows pretty information about a unit. See @@ -978,14 +1418,23 @@ static void print_status_info(UnitStatusInfo *i) { else printf("\t Loaded: %s\n", strna(i->load_state)); - if (streq_ptr(i->active_state, "maintenance")) - printf("\t Active: " ANSI_HIGHLIGHT_ON "%s (%s)" ANSI_HIGHLIGHT_OFF "\n", - strna(i->active_state), - strna(i->sub_state)); - else - printf("\t Active: %s (%s)\n", - strna(i->active_state), - strna(i->sub_state)); + if (streq_ptr(i->active_state, "maintenance")) { + if (streq_ptr(i->active_state, i->sub_state)) + printf("\t Active: " ANSI_HIGHLIGHT_ON "%s" ANSI_HIGHLIGHT_OFF "\n", + strna(i->active_state)); + else + printf("\t Active: " ANSI_HIGHLIGHT_ON "%s (%s)" ANSI_HIGHLIGHT_OFF "\n", + strna(i->active_state), + strna(i->sub_state)); + } else { + if (streq_ptr(i->active_state, i->sub_state)) + printf("\t Active: %s\n", + strna(i->active_state)); + else + printf("\t Active: %s (%s)\n", + strna(i->active_state), + strna(i->sub_state)); + } if (i->sysfs_path) printf("\t Device: %s\n", i->sysfs_path); @@ -994,17 +1443,41 @@ static void print_status_info(UnitStatusInfo *i) { else if (i->what) printf("\t What: %s\n", i->what); - if (i->status_text) - printf("\t Status: \"%s\"\n", i->status_text); - - if (i->id && endswith(i->id, ".socket")) + if (i->accept) printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections); + LIST_FOREACH(exec, p, i->exec) { + char *t; + + /* Only show exited processes here */ + if (p->code == 0) + continue; + + t = strv_join(p->argv, " "); + printf("\t Exited: %u (%s, code=%s, ", p->pid, strna(t), sigchld_code_to_string(p->code)); + free(t); + + if (p->code == CLD_EXITED) + printf("status=%i", p->status); + else + printf("signal=%s", signal_to_string(p->status)); + printf(")\n"); + + if (i->main_pid == p->pid && + i->start_timestamp == p->start_timestamp && + i->exit_timestamp == p->start_timestamp) + /* Let's not show this twice */ + i->main_pid = 0; + + if (p->pid == i->control_pid) + i->control_pid = 0; + } + if (i->main_pid > 0 || i->control_pid > 0) { printf("\t"); if (i->main_pid > 0) { - printf(" Process: %u", (unsigned) i->main_pid); + printf(" Main: %u", (unsigned) i->main_pid); if (i->running) { char *t = NULL; @@ -1019,7 +1492,7 @@ static void print_status_info(UnitStatusInfo *i) { if (i->exit_code == CLD_EXITED) printf("status=%i", i->exit_status); else - printf("signal=%s", strsignal(i->exit_status)); + printf("signal=%s", signal_to_string(i->exit_status)); printf(")"); } } @@ -1042,6 +1515,9 @@ static void print_status_info(UnitStatusInfo *i) { printf("\n"); } + if (i->status_text) + printf("\t Status: \"%s\"\n", i->status_text); + if (i->default_control_group) { unsigned c; @@ -1052,8 +1528,12 @@ static void print_status_info(UnitStatusInfo *i) { else c = 0; - show_cgroup_recursive(i->default_control_group, "\t\t ", c); + show_cgroup_by_path(i->default_control_group, "\t\t ", c); } + + if (i->need_daemon_reload) + printf("\n" ANSI_HIGHLIGHT_ON "Warning:" ANSI_HIGHLIGHT_OFF " Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n", + arg_session ? "--session" : "--system"); } static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) { @@ -1093,6 +1573,19 @@ static int status_property(const char *name, DBusMessageIter *iter, UnitStatusIn break; } + case DBUS_TYPE_BOOLEAN: { + dbus_bool_t b; + + dbus_message_iter_get_basic(iter, &b); + + if (streq(name, "Accept")) + i->accept = b; + else if (streq(name, "NeedDaemonReload")) + i->need_daemon_reload = b; + + break; + } + case DBUS_TYPE_UINT32: { uint32_t u; @@ -1141,6 +1634,34 @@ static int status_property(const char *name, DBusMessageIter *iter, UnitStatusIn break; } + + case DBUS_TYPE_ARRAY: { + + if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && + startswith(name, "Exec")) { + DBusMessageIter sub; + + dbus_message_iter_recurse(iter, &sub); + while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { + ExecStatusInfo *info; + int r; + + if (!(info = new0(ExecStatusInfo, 1))) + return -ENOMEM; + + if ((r = exec_status_info_deserialize(&sub, info)) < 0) { + free(info); + return r; + } + + LIST_PREPEND(ExecStatusInfo, exec, i->exec, info); + + dbus_message_iter_next(&sub); + } + } + + break; + } } return 0; @@ -1254,7 +1775,6 @@ static int print_property(const char *name, DBusMessageIter *iter) { bool space = false; dbus_message_iter_recurse(iter, &sub); - if (arg_all || dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { printf("%s=", name); @@ -1274,11 +1794,11 @@ static int print_property(const char *name, DBusMessageIter *iter) { } return 0; + } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) { DBusMessageIter sub; dbus_message_iter_recurse(iter, &sub); - if (arg_all || dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { printf("%s=", name); @@ -1297,11 +1817,11 @@ static int print_property(const char *name, DBusMessageIter *iter) { } return 0; + } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) { DBusMessageIter sub, sub2; dbus_message_iter_recurse(iter, &sub); - while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { const char *type, *path; @@ -1315,11 +1835,11 @@ static int print_property(const char *name, DBusMessageIter *iter) { } return 0; + } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) { DBusMessageIter sub, sub2; dbus_message_iter_recurse(iter, &sub); - while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { const char *base; uint64_t value, next_elapse; @@ -1341,59 +1861,39 @@ static int print_property(const char *name, DBusMessageIter *iter) { } return 0; - } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) { - DBusMessageIter sub, sub2, sub3; + } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) { + DBusMessageIter sub; dbus_message_iter_recurse(iter, &sub); - while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { - const char *path; - uint64_t start_time, exit_time; - uint32_t pid; - int32_t code, status; - - dbus_message_iter_recurse(&sub, &sub2); - - if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0) - continue; - - if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY || - dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING) - continue; - - printf("%s={ path=%s ; argv[]=", name, path); - - dbus_message_iter_recurse(&sub2, &sub3); - - while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) { - const char *s; - - assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING); - dbus_message_iter_get_basic(&sub3, &s); - printf("%s ", s); - dbus_message_iter_next(&sub3); - } - - if (dbus_message_iter_next(&sub2) && - bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_time, true) >= 0 && - bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_time, true) >= 0 && - bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) >= 0 && - bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) >= 0 && - bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) >= 0) { + ExecStatusInfo info; + zero(info); + if (exec_status_info_deserialize(&sub, &info) >= 0) { char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX]; + char *t; + + t = strv_join(info.argv, " "); + + printf("%s={ path=%s ; argv[]=%s ; ignore=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n", + name, + strna(info.path), + strna(t), + yes_no(info.ignore), + strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)), + strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)), + (unsigned) info. pid, + sigchld_code_to_string(info.code), + info.status, + info.code == CLD_EXITED ? "" : "/", + strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status))); - printf("; start=%s ; stop=%s ; pid=%u ; code=%s ; status=%i/%s", - strna(format_timestamp(timestamp1, sizeof(timestamp1), start_time)), - strna(format_timestamp(timestamp2, sizeof(timestamp2), exit_time)), - (unsigned) pid, - sigchld_code_to_string(code), - status, - strempty(code == CLD_EXITED ? NULL : strsignal(status))); + free(t); } - printf(" }\n"); + free(info.path); + strv_free(info.argv); dbus_message_iter_next(&sub); } @@ -1417,6 +1917,7 @@ static int show_one(DBusConnection *bus, const char *path, bool show_properties, DBusError error; DBusMessageIter iter, sub, sub2, sub3; UnitStatusInfo info; + ExecStatusInfo *p; assert(bus); assert(path); @@ -1506,6 +2007,11 @@ static int show_one(DBusConnection *bus, const char *path, bool show_properties, if (!show_properties) print_status_info(&info); + while ((p = info.exec)) { + LIST_REMOVE(ExecStatusInfo, exec, info.exec, p); + exec_status_info_free(p); + } + r = 0; finish: @@ -2133,10 +2639,11 @@ static int clear_jobs(DBusConnection *bus, char **args, unsigned n) { assert(arg_action == ACTION_SYSTEMCTL); method = - streq(args[0], "clear-jobs") ? "ClearJobs" : - streq(args[0], "daemon-reload") ? "Reload" : - streq(args[0], "daemon-reexec") ? "Reexecute" : - "Exit"; + streq(args[0], "clear-jobs") ? "ClearJobs" : + streq(args[0], "daemon-reload") ? "Reload" : + streq(args[0], "daemon-reexec") ? "Reexecute" : + streq(args[0], "reset-maintenance") ? "ResetMaintenance" : + "Exit"; } if (!(m = dbus_message_new_method_call( @@ -2176,6 +2683,63 @@ finish: return r; } +static int reset_maintenance(DBusConnection *bus, char **args, unsigned n) { + DBusMessage *m = NULL, *reply = NULL; + unsigned i; + int r; + DBusError error; + + assert(bus); + dbus_error_init(&error); + + if (n <= 1) + return clear_jobs(bus, args, n); + + for (i = 1; i < n; i++) { + + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "ResetMaintenanceUnit"))) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, args + i, + DBUS_TYPE_INVALID)) { + log_error("Could not append arguments to message."); + r = -ENOMEM; + goto finish; + } + + if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { + log_error("Failed to issue method call: %s", error.message); + r = -EIO; + goto finish; + } + + dbus_message_unref(m); + dbus_message_unref(reply); + m = reply = NULL; + } + + r = 0; + +finish: + if (m) + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + + dbus_error_free(&error); + + return r; +} + static int show_enviroment(DBusConnection *bus, char **args, unsigned n) { DBusMessage *m = NULL, *reply = NULL; DBusError error; @@ -2326,14 +2890,17 @@ finish: static int systemctl_help(void) { printf("%s [OPTIONS...] {COMMAND} ...\n\n" - "Send control commands to the systemd manager.\n\n" + "Send control commands to or query the systemd manager.\n\n" " -h --help Show this help\n" " -t --type=TYPE List only units of a particular type\n" " -p --property=NAME Show only properties by this name\n" " -a --all Show all units/properties, including dead/empty ones\n" - " --replace When installing a new job, replace existing conflicting ones\n" + " --fail When installing a new job, fail if conflicting jobs are\n" + " pending\n" " --system Connect to system bus\n" " --session Connect to session bus\n" + " --order When generating graph for dot, show only order\n" + " --require When generating graph for dot, show only requirement\n" " -q --quiet Suppress output\n" " --no-block Do not wait until operation finished\n" " --no-wall Don't send wall message before halt/power-off/reboot\n\n" @@ -2341,18 +2908,27 @@ static int systemctl_help(void) { " list-units List units\n" " start [NAME...] Start one or more units\n" " stop [NAME...] Stop one or more units\n" - " restart [NAME...] Restart one or more units\n" " reload [NAME...] Reload one or more units\n" + " restart [NAME...] Start or restart one or more units\n" + " try-restart [NAME...] Restart one or more units if active\n" + " reload-or-restart [NAME...] Reload one or more units is possible,\n" + " otherwise start or restart\n" + " reload-or-try-restart [NAME...] Reload one or more units is possible,\n" + " otherwise restart if active\n" " isolate [NAME] Start one unit and stop all others\n" - " check [NAME...] Check whether any of the passed units are active\n" + " check [NAME...] Check whether units are active\n" " status [NAME...] Show status of one or more units\n" - " show [NAME...|JOB...] Show properties of one or more units/jobs/manager\n" + " show [NAME...|JOB...] Show properties of one or more\n" + " units/jobs/manager\n" + " reset-maintenance [NAME...] Reset maintenance state for all, one\n" + " or more units\n" " load [NAME...] Load one or more units\n" " list-jobs List jobs\n" " cancel [JOB...] Cancel one or more jobs\n" " clear-jobs Cancel all jobs\n" " monitor Monitor unit/job changes\n" " dump Dump server status\n" + " dot Dump dependency graph for dot(1)\n" " snapshot [NAME] Create a snapshot\n" " delete [NAME...] Remove one or more snapshots\n" " daemon-reload Reload systemd manager configuration\n" @@ -2364,9 +2940,9 @@ static int systemctl_help(void) { " halt Shut down and halt the system\n" " poweroff Shut down and power-off the system\n" " reboot Shut down and reboot the system\n" - " default Enter default mode\n" - " rescue Enter rescue mode\n" - " emergency Enter emergency mode\n", + " rescue Enter system rescue mode\n" + " emergency Enter system emergency mode\n" + " default Enter system default mode\n", program_invocation_short_name); return 0; @@ -2440,11 +3016,13 @@ static int runlevel_help(void) { static int systemctl_parse_argv(int argc, char *argv[]) { enum { - ARG_REPLACE = 0x100, + ARG_FAIL = 0x100, ARG_SESSION, ARG_SYSTEM, ARG_NO_BLOCK, - ARG_NO_WALL + ARG_NO_WALL, + ARG_ORDER, + ARG_REQUIRE }; static const struct option options[] = { @@ -2452,12 +3030,14 @@ static int systemctl_parse_argv(int argc, char *argv[]) { { "type", required_argument, NULL, 't' }, { "property", required_argument, NULL, 'p' }, { "all", no_argument, NULL, 'a' }, - { "replace", no_argument, NULL, ARG_REPLACE }, + { "fail", no_argument, NULL, ARG_FAIL }, { "session", no_argument, NULL, ARG_SESSION }, { "system", no_argument, NULL, ARG_SYSTEM }, { "no-block", no_argument, NULL, ARG_NO_BLOCK }, { "no-wall", no_argument, NULL, ARG_NO_WALL }, { "quiet", no_argument, NULL, 'q' }, + { "order", no_argument, NULL, ARG_ORDER }, + { "require", no_argument, NULL, ARG_REQUIRE }, { NULL, 0, NULL, 0 } }; @@ -2491,8 +3071,8 @@ static int systemctl_parse_argv(int argc, char *argv[]) { arg_all = true; break; - case ARG_REPLACE: - arg_replace = true; + case ARG_FAIL: + arg_fail = true; break; case ARG_SESSION: @@ -2511,6 +3091,14 @@ static int systemctl_parse_argv(int argc, char *argv[]) { arg_no_wall = true; break; + case ARG_ORDER: + arg_dot = DOT_ORDER; + break; + + case ARG_REQUIRE: + arg_dot = DOT_REQUIRE; + break; + case 'q': arg_quiet = true; break; @@ -2897,7 +3485,7 @@ static int talk_upstart(void) { if (utmp_get_runlevel(&previous, NULL) < 0) previous = 'N'; - if (!(bus = dbus_connection_open("unix:abstract=/com/ubuntu/upstart", &error))) { + if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) { if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) { r = 0; goto finish; @@ -2961,8 +3549,10 @@ finish: if (reply) dbus_message_unref(reply); - if (bus) + if (bus) { + dbus_connection_close(bus); dbus_connection_unref(bus); + } dbus_error_free(&error); @@ -3025,12 +3615,16 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[]) { { "stop", MORE, 2, start_unit }, { "reload", MORE, 2, start_unit }, { "restart", MORE, 2, start_unit }, + { "try-restart", MORE, 2, start_unit }, + { "reload-or-restart", MORE, 2, start_unit }, + { "reload-or-try-restart", MORE, 2, start_unit }, { "isolate", EQUAL, 2, start_unit }, { "check", MORE, 2, check_unit }, { "show", MORE, 1, show }, { "status", MORE, 2, show }, { "monitor", EQUAL, 1, monitor }, { "dump", EQUAL, 1, dump }, + { "dot", EQUAL, 1, dot }, { "snapshot", LESS, 2, snapshot }, { "delete", MORE, 2, delete_snapshot }, { "daemon-reload", EQUAL, 1, clear_jobs }, @@ -3044,7 +3638,8 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[]) { { "reboot", EQUAL, 1, start_special }, { "default", EQUAL, 1, start_special }, { "rescue", EQUAL, 1, start_special }, - { "emergency", EQUAL, 1, start_special } + { "emergency", EQUAL, 1, start_special }, + { "reset-maintenance", MORE, 1, reset_maintenance }, }; int left; @@ -3131,32 +3726,40 @@ static int reload_with_fallback(DBusConnection *bus) { static int start_with_fallback(DBusConnection *bus) { int r; - warn_wall(arg_action); if (bus) { /* First, try systemd via D-Bus. */ if ((r = start_unit(bus, NULL, 0)) > 0) - return 0; + goto done; /* Hmm, talking to systemd via D-Bus didn't work. Then * let's try to talk to Upstart via D-Bus. */ if ((r = talk_upstart()) > 0) - return 0; + goto done; } /* Nothing else worked, so let's try * /dev/initctl */ if ((r = talk_initctl()) != 0) - return 0; + goto done; log_error("Failed to talk to init daemon."); return -EIO; + +done: + warn_wall(arg_action); + return 0; } static int halt_main(DBusConnection *bus) { int r; - if (!arg_immediate) + if (geteuid() != 0) { + log_error("Must to be root."); + return -EPERM; + } + + if (!arg_dry && !arg_immediate) return start_with_fallback(bus); if (!arg_no_wtmp) @@ -3280,8 +3883,10 @@ int main(int argc, char*argv[]) { finish: - if (bus) + if (bus) { + dbus_connection_close(bus); dbus_connection_unref(bus); + } dbus_error_free(&error);