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Diffstat (limited to 'src/systemctl.c')
-rw-r--r--src/systemctl.c200
1 files changed, 105 insertions, 95 deletions
diff --git a/src/systemctl.c b/src/systemctl.c
index de41db79e2..a85257ff6e 100644
--- a/src/systemctl.c
+++ b/src/systemctl.c
@@ -51,6 +51,7 @@
#include "sd-daemon.h"
#include "shutdownd.h"
#include "exit-status.h"
+#include "bus-errors.h"
static const char *arg_type = NULL;
static char **arg_property = NULL;
@@ -69,11 +70,6 @@ static bool arg_quiet = false;
static bool arg_full = false;
static bool arg_force = false;
static bool arg_defaults = false;
-static bool arg_sysv_compat = false; /* this is undocumented, and
- * exists simply to make
- * implementation of SysV
- * compatible shell glue
- * easier */
static char **arg_wall = NULL;
static usec_t arg_when = 0;
static enum action {
@@ -145,6 +141,34 @@ static bool error_is_no_service(const DBusError *error) {
return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
}
+static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
+ assert(error);
+
+ if (!dbus_error_is_set(error))
+ return r;
+
+ if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
+ dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
+ dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
+ dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
+ return EXIT_NOPERMISSION;
+
+ if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
+ return EXIT_NOTINSTALLED;
+
+ if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
+ dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
+ return EXIT_NOTIMPLEMENTED;
+
+ if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
+ return EXIT_NOTCONFIGURED;
+
+ if (r != 0)
+ return r;
+
+ return EXIT_FAILURE;
+}
+
static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
assert(iter);
@@ -1072,10 +1096,10 @@ static int start_unit_one(
const char *method,
const char *name,
const char *mode,
+ DBusError *error,
Set *s) {
DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
const char *path;
int r;
@@ -1083,10 +1107,9 @@ static int start_unit_one(
assert(method);
assert(name);
assert(mode);
+ assert(error);
assert(arg_no_block || s);
- dbus_error_init(&error);
-
if (!(m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
@@ -1106,24 +1129,24 @@ static int start_unit_one(
goto finish;
}
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
+ if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) {
- if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
+ if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
/* There's always a fallback possible for
* legacy actions. */
r = 0;
goto finish;
}
- log_error("Failed to issue method call: %s", bus_error_message(&error));
+ log_error("Failed to issue method call: %s", bus_error_message(error));
r = -EIO;
goto finish;
}
- if (!dbus_message_get_args(reply, &error,
+ if (!dbus_message_get_args(reply, error,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID)) {
- log_error("Failed to parse reply: %s", bus_error_message(&error));
+ log_error("Failed to parse reply: %s", bus_error_message(error));
r = -EIO;
goto finish;
}
@@ -1150,6 +1173,10 @@ static int start_unit_one(
r = 1;
+ /* Returns 1 if we managed to issue the request, and 0 if we
+ * failed due to systemd not being around. This is then used
+ * as indication to try a fallback mechanism. */
+
finish:
if (m)
dbus_message_unref(m);
@@ -1157,8 +1184,6 @@ finish:
if (reply)
dbus_message_unref(reply);
- dbus_error_free(&error);
-
return r;
}
@@ -1194,10 +1219,13 @@ static int start_unit(DBusConnection *bus, char **args, unsigned n) {
[ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET
};
- int r;
+ int r, ret = 0;
unsigned i;
const char *method, *mode, *one_name;
Set *s = NULL;
+ DBusError error;
+
+ dbus_error_init(&error);
assert(bus);
@@ -1235,40 +1263,47 @@ static int start_unit(DBusConnection *bus, char **args, unsigned n) {
}
if (!arg_no_block) {
- if ((r = enable_wait_for_jobs(bus)) < 0) {
- log_error("Could not watch jobs: %s", strerror(-r));
+ if ((ret = enable_wait_for_jobs(bus)) < 0) {
+ log_error("Could not watch jobs: %s", strerror(-ret));
goto finish;
}
if (!(s = set_new(string_hash_func, string_compare_func))) {
log_error("Failed to allocate set.");
- r = -ENOMEM;
+ ret = -ENOMEM;
goto finish;
}
}
- r = 0;
-
if (one_name) {
- if ((r = start_unit_one(bus, method, one_name, mode, s)) <= 0)
+ if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
goto finish;
} else {
for (i = 1; i < n; i++)
- if ((r = start_unit_one(bus, method, args[i], mode, s)) < 0)
- goto finish;
+ if ((r = start_unit_one(bus, method, args[i], mode, &error, s)) != 0) {
+
+ if (r > 0)
+ ret = r;
+ else
+ ret = translate_bus_error_to_exit_status(r, &error);
+
+ dbus_error_free(&error);
+ }
}
if (!arg_no_block)
- if ((r = wait_for_jobs(bus, s)) < 0)
+ if ((r = wait_for_jobs(bus, s)) < 0) {
+ ret = r;
goto finish;
-
- r = 1;
+ }
finish:
if (s)
set_free_free(s);
- return r;
+ dbus_error_free(&error);
+
+ return ret;
}
static int start_special(DBusConnection *bus, char **args, unsigned n) {
@@ -1290,7 +1325,7 @@ static int check_unit(DBusConnection *bus, char **args, unsigned n) {
const char
*interface = "org.freedesktop.systemd1.Unit",
*property = "ActiveState";
- int r = -EADDRNOTAVAIL;
+ int r = 3; /* According to LSB: "program is not running" */
DBusError error;
unsigned i;
@@ -2213,19 +2248,13 @@ static int show_one(DBusConnection *bus, const char *path, bool show_properties,
r = 0;
- if (!show_properties) {
- if (arg_sysv_compat &&
- !streq_ptr(info.active_state, "active") &&
- !streq_ptr(info.active_state, "reloading")) {
+ if (!show_properties)
+ print_status_info(&info);
- /* If the SysV compatibility mode is on, we
- * will refuse to run "status" on units that
- * aren't active */
- log_error("Unit not active.");
- r = -EADDRNOTAVAIL;
- } else
- print_status_info(&info);
- }
+ if (!streq_ptr(info.active_state, "active") &&
+ !streq_ptr(info.active_state, "reloading"))
+ /* According to LSB: "program not running" */
+ r = 3;
while ((p = info.exec)) {
LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
@@ -2246,7 +2275,7 @@ finish:
static int show(DBusConnection *bus, char **args, unsigned n) {
DBusMessage *m = NULL, *reply = NULL;
- int r;
+ int r, ret = 0;
DBusError error;
unsigned i;
bool show_properties, new_line = false;
@@ -2262,7 +2291,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
/* If not argument is specified inspect the manager
* itself */
- r = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
+ ret = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
goto finish;
}
@@ -2280,7 +2309,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
"org.freedesktop.systemd1.Manager",
"LoadUnit"))) {
log_error("Could not allocate message.");
- r = -ENOMEM;
+ ret = -ENOMEM;
goto finish;
}
@@ -2288,7 +2317,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
DBUS_TYPE_STRING, &args[i],
DBUS_TYPE_INVALID)) {
log_error("Could not append arguments to message.");
- r = -ENOMEM;
+ ret = -ENOMEM;
goto finish;
}
@@ -2296,7 +2325,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
log_error("Failed to issue method call: %s", bus_error_message(&error));
- r = -EIO;
+ ret = -EIO;
goto finish;
}
@@ -2309,7 +2338,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
"org.freedesktop.systemd1.Manager",
"GetUnit"))) {
log_error("Could not allocate message.");
- r = -ENOMEM;
+ ret = -ENOMEM;
goto finish;
}
@@ -2317,13 +2346,17 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
DBUS_TYPE_STRING, &args[i],
DBUS_TYPE_INVALID)) {
log_error("Could not append arguments to message.");
- r = -ENOMEM;
+ ret = -ENOMEM;
goto finish;
}
if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
log_error("Failed to issue method call: %s", bus_error_message(&error));
- r = -EIO;
+
+ if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
+ ret = 4; /* According to LSB: "program or service status is unknown" */
+ else
+ ret = -EIO;
goto finish;
}
}
@@ -2338,7 +2371,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
"org.freedesktop.systemd1.Manager",
"GetJob"))) {
log_error("Could not allocate message.");
- r = -ENOMEM;
+ ret = -ENOMEM;
goto finish;
}
@@ -2346,13 +2379,13 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
DBUS_TYPE_UINT32, &id,
DBUS_TYPE_INVALID)) {
log_error("Could not append arguments to message.");
- r = -ENOMEM;
+ ret = -ENOMEM;
goto finish;
}
if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
log_error("Failed to issue method call: %s", bus_error_message(&error));
- r = -EIO;
+ ret = -EIO;
goto finish;
}
} else {
@@ -2365,7 +2398,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
"org.freedesktop.systemd1.Manager",
"GetUnitByPID"))) {
log_error("Could not allocate message.");
- r = -ENOMEM;
+ ret = -ENOMEM;
goto finish;
}
@@ -2373,13 +2406,13 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
DBUS_TYPE_UINT32, &id,
DBUS_TYPE_INVALID)) {
log_error("Could not append arguments to message.");
- r = -ENOMEM;
+ ret = -ENOMEM;
goto finish;
}
if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
log_error("Failed to issue method call: %s", bus_error_message(&error));
- r = -EIO;
+ ret = -EIO;
goto finish;
}
}
@@ -2388,20 +2421,18 @@ static int show(DBusConnection *bus, char **args, unsigned n) {
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID)) {
log_error("Failed to parse reply: %s", bus_error_message(&error));
- r = -EIO;
+ ret = -EIO;
goto finish;
}
- if ((r = show_one(bus, path, show_properties, &new_line)) < 0)
- goto finish;
+ if ((r = show_one(bus, path, show_properties, &new_line)) != 0)
+ ret = r;
dbus_message_unref(m);
dbus_message_unref(reply);
m = reply = NULL;
}
- r = 0;
-
finish:
if (m)
dbus_message_unref(m);
@@ -2411,7 +2442,7 @@ finish:
dbus_error_free(&error);
- return r;
+ return ret;
}
static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
@@ -3967,8 +3998,7 @@ static int systemctl_parse_argv(int argc, char *argv[]) {
ARG_FULL,
ARG_FORCE,
ARG_NO_RELOAD,
- ARG_DEFAULTS,
- ARG_SYSV_COMPAT
+ ARG_DEFAULTS
};
static const struct option options[] = {
@@ -3989,7 +4019,6 @@ static int systemctl_parse_argv(int argc, char *argv[]) {
{ "force", no_argument, NULL, ARG_FORCE },
{ "no-reload", no_argument, NULL, ARG_NO_RELOAD },
{ "defaults", no_argument, NULL, ARG_DEFAULTS },
- { "sysv-compat", no_argument, NULL, ARG_SYSV_COMPAT },
{ NULL, 0, NULL, 0 }
};
@@ -4083,10 +4112,6 @@ static int systemctl_parse_argv(int argc, char *argv[]) {
arg_defaults = true;
break;
- case ARG_SYSV_COMPAT:
- arg_sysv_compat = true;
- break;
-
case '?':
return -EINVAL;
@@ -4781,11 +4806,6 @@ static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
struct msghdr msghdr;
struct iovec iovec;
union sockaddr_union sockaddr;
- struct ucred *ucred;
- union {
- struct cmsghdr cmsghdr;
- uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
- } control;
struct shutdownd_command c;
zero(c);
@@ -4808,24 +4828,12 @@ static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
iovec.iov_base = (char*) &c;
iovec.iov_len = sizeof(c);
- zero(control);
- control.cmsghdr.cmsg_level = SOL_SOCKET;
- control.cmsghdr.cmsg_type = SCM_CREDENTIALS;
- control.cmsghdr.cmsg_len = CMSG_LEN(sizeof(struct ucred));
-
- ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);
- ucred->pid = getpid();
- ucred->uid = getuid();
- ucred->gid = getgid();
-
zero(msghdr);
msghdr.msg_name = &sockaddr;
msghdr.msg_namelen = sizeof(sa_family_t) + 1 + sizeof("/org/freedesktop/systemd1/shutdownd") - 1;
msghdr.msg_iov = &iovec;
msghdr.msg_iovlen = 1;
- msghdr.msg_control = &control;
- msghdr.msg_controllen = control.cmsghdr.cmsg_len;
if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
close_nointr_nofail(fd);
@@ -4972,7 +4980,7 @@ static int runlevel_main(void) {
}
int main(int argc, char*argv[]) {
- int r, retval = 1;
+ int r, retval = EXIT_FAILURE;
DBusConnection *bus = NULL;
DBusError error;
@@ -4984,14 +4992,15 @@ int main(int argc, char*argv[]) {
if ((r = parse_argv(argc, argv)) < 0)
goto finish;
else if (r == 0) {
- retval = 0;
+ retval = EXIT_SUCCESS;
goto finish;
}
/* /sbin/runlevel doesn't need to communicate via D-Bus, so
* let's shortcut this */
if (arg_action == ACTION_RUNLEVEL) {
- retval = runlevel_main() < 0;
+ r = runlevel_main();
+ retval = r < 0 ? EXIT_FAILURE : r;
goto finish;
}
@@ -4999,15 +5008,14 @@ int main(int argc, char*argv[]) {
switch (arg_action) {
- case ACTION_SYSTEMCTL: {
- retval = systemctl_main(bus, argc, argv, &error) < 0;
+ case ACTION_SYSTEMCTL:
+ r = systemctl_main(bus, argc, argv, &error);
break;
- }
case ACTION_HALT:
case ACTION_POWEROFF:
case ACTION_REBOOT:
- retval = halt_main(bus) < 0;
+ r = halt_main(bus);
break;
case ACTION_RUNLEVEL2:
@@ -5017,16 +5025,16 @@ int main(int argc, char*argv[]) {
case ACTION_RESCUE:
case ACTION_EMERGENCY:
case ACTION_DEFAULT:
- retval = start_with_fallback(bus) < 0;
+ r = start_with_fallback(bus);
break;
case ACTION_RELOAD:
case ACTION_REEXEC:
- retval = reload_with_fallback(bus) < 0;
+ r = reload_with_fallback(bus);
break;
case ACTION_CANCEL_SHUTDOWN:
- retval = send_shutdownd(0, 0, false, NULL) < 0;
+ r = send_shutdownd(0, 0, false, NULL);
break;
case ACTION_INVALID:
@@ -5035,6 +5043,8 @@ int main(int argc, char*argv[]) {
assert_not_reached("Unknown action");
}
+ retval = r < 0 ? EXIT_FAILURE : r;
+
finish:
if (bus) {
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-08 09:24:31 +0000