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-rw-r--r--src/core/dbus-util.c155
1 files changed, 155 insertions, 0 deletions
diff --git a/src/core/dbus-util.c b/src/core/dbus-util.c
new file mode 100644
index 0000000..d6223db
--- /dev/null
+++ b/src/core/dbus-util.c
@@ -0,0 +1,155 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "bus-util.h"
+#include "dbus-util.h"
+#include "parse-util.h"
+#include "path-util.h"
+#include "unit-printf.h"
+#include "user-util.h"
+#include "unit.h"
+
+int bus_property_get_triggered_unit(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Unit *u = userdata, *trigger;
+
+ assert(bus);
+ assert(reply);
+ assert(u);
+
+ trigger = UNIT_TRIGGER(u);
+
+ return sd_bus_message_append(reply, "s", trigger ? trigger->id : NULL);
+}
+
+BUS_DEFINE_SET_TRANSIENT(mode_t, "u", uint32_t, mode_t, "%040o");
+BUS_DEFINE_SET_TRANSIENT(unsigned, "u", uint32_t, unsigned, "%" PRIu32);
+
+static inline bool valid_user_group_name_or_id_relaxed(const char *u) {
+ return valid_user_group_name(u, VALID_USER_ALLOW_NUMERIC|VALID_USER_RELAX);
+}
+
+BUS_DEFINE_SET_TRANSIENT_STRING_WITH_CHECK(user_relaxed, valid_user_group_name_or_id_relaxed);
+BUS_DEFINE_SET_TRANSIENT_STRING_WITH_CHECK(path, path_is_absolute);
+
+int bus_set_transient_string(
+ Unit *u,
+ const char *name,
+ char **p,
+ sd_bus_message *message,
+ UnitWriteFlags flags,
+ sd_bus_error *error) {
+
+ const char *v;
+ int r;
+
+ assert(p);
+
+ r = sd_bus_message_read(message, "s", &v);
+ if (r < 0)
+ return r;
+
+ if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
+ r = free_and_strdup(p, empty_to_null(v));
+ if (r < 0)
+ return r;
+
+ unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name,
+ "%s=%s", name, strempty(v));
+ }
+
+ return 1;
+}
+
+int bus_set_transient_bool(
+ Unit *u,
+ const char *name,
+ bool *p,
+ sd_bus_message *message,
+ UnitWriteFlags flags,
+ sd_bus_error *error) {
+
+ int v, r;
+
+ assert(p);
+
+ r = sd_bus_message_read(message, "b", &v);
+ if (r < 0)
+ return r;
+
+ if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
+ *p = v;
+ unit_write_settingf(u, flags, name, "%s=%s", name, yes_no(v));
+ }
+
+ return 1;
+}
+
+int bus_set_transient_percent(
+ Unit *u,
+ const char *name,
+ int *p,
+ sd_bus_message *message,
+ UnitWriteFlags flags,
+ sd_bus_error *error) {
+
+ const char *v;
+ int r;
+
+ assert(p);
+
+ r = sd_bus_message_read(message, "s", &v);
+ if (r < 0)
+ return r;
+
+ r = parse_percent(v);
+ if (r < 0)
+ return r;
+
+ if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
+ *p = r;
+ unit_write_settingf(u, flags, name, "%s=%d%%", name, r);
+ }
+
+ return 1;
+}
+
+int bus_set_transient_usec_internal(
+ Unit *u,
+ const char *name,
+ usec_t *p,
+ bool fix_0,
+ sd_bus_message *message,
+ UnitWriteFlags flags,
+ sd_bus_error *error) {
+
+ uint64_t v;
+ int r;
+
+ assert(p);
+
+ r = sd_bus_message_read(message, "t", &v);
+ if (r < 0)
+ return r;
+
+ if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
+ char *n, ts[FORMAT_TIMESPAN_MAX];
+
+ if (fix_0)
+ *p = v != 0 ? v: USEC_INFINITY;
+ else
+ *p = v;
+
+ n = strndupa(name, strlen(name) - 4);
+ unit_write_settingf(u, flags, name, "%sSec=%s", n,
+ format_timespan(ts, sizeof(ts), v, USEC_PER_MSEC));
+ }
+
+ return 1;
+}