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-rw-r--r--src/core/automount.c12
-rw-r--r--src/core/busname.c12
-rw-r--r--src/core/device.c14
-rw-r--r--src/core/job.c24
-rw-r--r--src/core/job.h3
-rw-r--r--src/core/manager.c21
-rw-r--r--src/core/mount.c1
-rw-r--r--src/core/swap.c16
-rw-r--r--src/core/unit.c15
-rw-r--r--src/core/unit.h4
10 files changed, 101 insertions, 21 deletions
diff --git a/src/core/automount.c b/src/core/automount.c
index f795487131..90beb4daaa 100644
--- a/src/core/automount.c
+++ b/src/core/automount.c
@@ -807,6 +807,17 @@ static void automount_reset_failed(Unit *u) {
a->result = AUTOMOUNT_SUCCESS;
}
+static bool automount_supported(Manager *m) {
+ static int supported = -1;
+
+ assert(m);
+
+ if (supported < 0)
+ supported = access("/dev/autofs", F_OK) >= 0;
+
+ return supported;
+}
+
static const char* const automount_state_table[_AUTOMOUNT_STATE_MAX] = {
[AUTOMOUNT_DEAD] = "dead",
[AUTOMOUNT_WAITING] = "waiting",
@@ -859,6 +870,7 @@ const UnitVTable automount_vtable = {
.bus_vtable = bus_automount_vtable,
.shutdown = automount_shutdown,
+ .supported = automount_supported,
.status_message_formats = {
.finished_start_job = {
diff --git a/src/core/busname.c b/src/core/busname.c
index d4aa463397..838171fe23 100644
--- a/src/core/busname.c
+++ b/src/core/busname.c
@@ -971,6 +971,16 @@ static int busname_get_timeout(Unit *u, uint64_t *timeout) {
return 1;
}
+static bool busname_supported(Manager *m) {
+ int supported = -1;
+ assert(m);
+
+ if (supported < 0)
+ supported = access("/sys/fs/kdbus", F_OK) >= 0;
+
+ return supported;
+}
+
static const char* const busname_state_table[_BUSNAME_STATE_MAX] = {
[BUSNAME_DEAD] = "dead",
[BUSNAME_MAKING] = "making",
@@ -1032,6 +1042,8 @@ const UnitVTable busname_vtable = {
.reset_failed = busname_reset_failed,
+ .supported = busname_supported,
+
.bus_interface = "org.freedesktop.systemd1.BusName",
.bus_vtable = bus_busname_vtable,
diff --git a/src/core/device.c b/src/core/device.c
index c298cd95f6..d3deac3936 100644
--- a/src/core/device.c
+++ b/src/core/device.c
@@ -673,6 +673,19 @@ static int device_dispatch_io(sd_event_source *source, int fd, uint32_t revents,
return 0;
}
+static bool device_supported(Manager *m) {
+ static int read_only = -1;
+ assert(m);
+
+ /* If /sys is read-only we don't support device units, and any
+ * attempts to start one should fail immediately. */
+
+ if (read_only < 0)
+ read_only = path_is_read_only_fs("/sys");
+
+ return read_only <= 0;
+}
+
static const char* const device_state_table[_DEVICE_STATE_MAX] = {
[DEVICE_DEAD] = "dead",
[DEVICE_PLUGGED] = "plugged"
@@ -708,6 +721,7 @@ const UnitVTable device_vtable = {
.enumerate = device_enumerate,
.shutdown = device_shutdown,
+ .supported = device_supported,
.status_message_formats = {
.starting_stopping = {
diff --git a/src/core/job.c b/src/core/job.c
index 78bc1083de..a3ba7cf703 100644
--- a/src/core/job.c
+++ b/src/core/job.c
@@ -547,6 +547,8 @@ int job_run_and_invalidate(Job *j) {
r = job_finish_and_invalidate(j, JOB_INVALID, true);
else if (r == -EPROTO)
r = job_finish_and_invalidate(j, JOB_ASSERT, true);
+ else if (r == -ENOTSUP)
+ r = job_finish_and_invalidate(j, JOB_UNSUPPORTED, true);
else if (r == -EAGAIN) {
j->state = JOB_WAITING;
m->n_running_jobs--;
@@ -591,12 +593,16 @@ _pure_ static const char *job_get_status_message_format_try_harder(Unit *u, JobT
if (t == JOB_START) {
if (result == JOB_DONE)
return "Started %s.";
+ else if (result == JOB_TIMEOUT)
+ return "Timed out starting %s.";
else if (result == JOB_FAILED)
return "Failed to start %s.";
else if (result == JOB_DEPENDENCY)
return "Dependency failed for %s.";
- else if (result == JOB_TIMEOUT)
- return "Timed out starting %s.";
+ else if (result == JOB_ASSERT)
+ return "Assertion failed for %s.";
+ else if (result == JOB_UNSUPPORTED)
+ return "Starting of %s not supported.";
} else if (t == JOB_STOP || t == JOB_RESTART) {
if (result == JOB_DONE)
return "Stopped %s.";
@@ -637,6 +643,11 @@ static void job_print_status_message(Unit *u, JobType t, JobResult result) {
unit_status_printf(u, ANSI_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, format);
break;
+ case JOB_TIMEOUT:
+ manager_flip_auto_status(u->manager, true);
+ unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format);
+ break;
+
case JOB_FAILED: {
bool quotes;
@@ -655,14 +666,14 @@ static void job_print_status_message(Unit *u, JobType t, JobResult result) {
unit_status_printf(u, ANSI_HIGHLIGHT_YELLOW_ON "DEPEND" ANSI_HIGHLIGHT_OFF, format);
break;
- case JOB_TIMEOUT:
+ case JOB_ASSERT:
manager_flip_auto_status(u->manager, true);
- unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format);
+ unit_status_printf(u, ANSI_HIGHLIGHT_YELLOW_ON "ASSERT" ANSI_HIGHLIGHT_OFF, format);
break;
- case JOB_ASSERT:
+ case JOB_UNSUPPORTED:
manager_flip_auto_status(u->manager, true);
- unit_status_printf(u, ANSI_HIGHLIGHT_YELLOW_ON "ASSERT" ANSI_HIGHLIGHT_OFF, format);
+ unit_status_printf(u, ANSI_HIGHLIGHT_YELLOW_ON "UNSUPP" ANSI_HIGHLIGHT_OFF, format);
break;
default:
@@ -1200,6 +1211,7 @@ static const char* const job_result_table[_JOB_RESULT_MAX] = {
[JOB_SKIPPED] = "skipped",
[JOB_INVALID] = "invalid",
[JOB_ASSERT] = "assert",
+ [JOB_UNSUPPORTED] = "unsupported",
};
DEFINE_STRING_TABLE_LOOKUP(job_result, JobResult);
diff --git a/src/core/job.h b/src/core/job.h
index 223ff9cba7..d967b68a3f 100644
--- a/src/core/job.h
+++ b/src/core/job.h
@@ -96,12 +96,13 @@ enum JobMode {
enum JobResult {
JOB_DONE, /* Job completed successfully */
JOB_CANCELED, /* Job canceled by a conflicting job installation or by explicit cancel request */
- JOB_TIMEOUT, /* JobTimeout elapsed */
+ JOB_TIMEOUT, /* Job timeout elapsed */
JOB_FAILED, /* Job failed */
JOB_DEPENDENCY, /* A required dependency job did not result in JOB_DONE */
JOB_SKIPPED, /* Negative result of JOB_VERIFY_ACTIVE */
JOB_INVALID, /* JOB_RELOAD of inactive unit */
JOB_ASSERT, /* Couldn't start a unit, because an assert didn't hold */
+ JOB_UNSUPPORTED, /* Couldn't start a unit, because the unit type is not supported on the system */
_JOB_RESULT_MAX,
_JOB_RESULT_INVALID = -1
};
diff --git a/src/core/manager.c b/src/core/manager.c
index 7653850cd4..afd911d899 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -946,20 +946,29 @@ Manager* manager_free(Manager *m) {
}
int manager_enumerate(Manager *m) {
- int r = 0, q;
+ int r = 0;
UnitType c;
assert(m);
/* Let's ask every type to load all units from disk/kernel
* that it might know */
- for (c = 0; c < _UNIT_TYPE_MAX; c++)
- if (unit_vtable[c]->enumerate) {
- q = unit_vtable[c]->enumerate(m);
- if (q < 0)
- r = q;
+ for (c = 0; c < _UNIT_TYPE_MAX; c++) {
+ int q;
+
+ if (unit_vtable[c]->supported && !unit_vtable[c]->supported(m)) {
+ log_info("Unit type .%s is not supported on this system.", unit_type_to_string(c));
+ continue;
}
+ if (!unit_vtable[c]->enumerate)
+ continue;
+
+ q = unit_vtable[c]->enumerate(m);
+ if (q < 0)
+ r = q;
+ }
+
manager_dispatch_load_queue(m);
return r;
}
diff --git a/src/core/mount.c b/src/core/mount.c
index 3029cfd4d8..f8731bb8b9 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -1447,7 +1447,6 @@ static int mount_add_one(
goto fail;
}
-
if (m->running_as == SYSTEMD_SYSTEM) {
const char* target;
diff --git a/src/core/swap.c b/src/core/swap.c
index a6a23554c9..cb19d0f123 100644
--- a/src/core/swap.c
+++ b/src/core/swap.c
@@ -1453,6 +1453,21 @@ static int swap_get_timeout(Unit *u, uint64_t *timeout) {
return 1;
}
+static bool swap_supported(Manager *m) {
+ static int supported = -1;
+
+ /* If swap support is not available in the kernel, or we are
+ * running in a container we don't support swap units, and any
+ * attempts to starting one should fail immediately. */
+
+ if (supported < 0)
+ supported =
+ access("/proc/swaps", F_OK) >= 0 &&
+ detect_container(NULL) <= 0;
+
+ return supported;
+}
+
static const char* const swap_state_table[_SWAP_STATE_MAX] = {
[SWAP_DEAD] = "dead",
[SWAP_ACTIVATING] = "activating",
@@ -1539,6 +1554,7 @@ const UnitVTable swap_vtable = {
.enumerate = swap_enumerate,
.shutdown = swap_shutdown,
+ .supported = swap_supported,
.status_message_formats = {
.starting_stopping = {
diff --git a/src/core/unit.c b/src/core/unit.c
index fe0dfb2083..8cec0e7e7f 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -1453,6 +1453,9 @@ int unit_start(Unit *u) {
unit_status_log_starting_stopping_reloading(u, JOB_START);
unit_status_print_starting_stopping(u, JOB_START);
+ if (UNIT_VTABLE(u)->supported && !UNIT_VTABLE(u)->supported(u->manager))
+ return -ENOTSUP;
+
/* If it is stopped, but we cannot start it, then fail */
if (!UNIT_VTABLE(u)->start)
return -EBADR;
@@ -1496,9 +1499,9 @@ int unit_stop(Unit *u) {
if (UNIT_IS_INACTIVE_OR_FAILED(state))
return -EALREADY;
- if ((following = unit_following(u))) {
- log_unit_debug(u->id, "Redirecting stop request from %s to %s.",
- u->id, following->id);
+ following = unit_following(u);
+ if (following) {
+ log_unit_debug(u->id, "Redirecting stop request from %s to %s.", u->id, following->id);
return unit_stop(following);
}
@@ -1535,15 +1538,13 @@ int unit_reload(Unit *u) {
return -EALREADY;
if (state != UNIT_ACTIVE) {
- log_unit_warning(u->id, "Unit %s cannot be reloaded because it is inactive.",
- u->id);
+ log_unit_warning(u->id, "Unit %s cannot be reloaded because it is inactive.", u->id);
return -ENOEXEC;
}
following = unit_following(u);
if (following) {
- log_unit_debug(u->id, "Redirecting reload request from %s to %s.",
- u->id, following->id);
+ log_unit_debug(u->id, "Redirecting reload request from %s to %s.", u->id, following->id);
return unit_reload(following);
}
diff --git a/src/core/unit.h b/src/core/unit.h
index f6587ba5f0..19fa2f0585 100644
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -396,6 +396,10 @@ struct UnitVTable {
/* Type specific cleanups. */
void (*shutdown)(Manager *m);
+ /* If this function is set and return false all jobs for units
+ * of this type will immediately fail. */
+ bool (*supported)(Manager *m);
+
/* The interface name */
const char *bus_interface;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-04 16:48:57 +0000