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-rw-r--r--src/core/dbus-util.h248
1 files changed, 248 insertions, 0 deletions
diff --git a/src/core/dbus-util.h b/src/core/dbus-util.h
new file mode 100644
index 0000000..12b055e
--- /dev/null
+++ b/src/core/dbus-util.h
@@ -0,0 +1,248 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+#pragma once
+
+#include "sd-bus.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);
+
+#define BUS_DEFINE_SET_TRANSIENT(function, bus_type, type, cast_type, fmt) \
+ int bus_set_transient_##function( \
+ Unit *u, \
+ const char *name, \
+ cast_type *p, \
+ sd_bus_message *message, \
+ UnitWriteFlags flags, \
+ sd_bus_error *error) { \
+ \
+ type v; \
+ int r; \
+ \
+ assert(p); \
+ \
+ r = sd_bus_message_read(message, bus_type, &v); \
+ if (r < 0) \
+ return r; \
+ \
+ if (!UNIT_WRITE_FLAGS_NOOP(flags)) { \
+ *p = (cast_type) v; \
+ unit_write_settingf(u, flags, name, \
+ "%s=" fmt, name, v); \
+ } \
+ \
+ return 1; \
+ }
+
+#define BUS_DEFINE_SET_TRANSIENT_IS_VALID(function, bus_type, type, cast_type, fmt, check) \
+ int bus_set_transient_##function( \
+ Unit *u, \
+ const char *name, \
+ cast_type *p, \
+ sd_bus_message *message, \
+ UnitWriteFlags flags, \
+ sd_bus_error *error) { \
+ \
+ type v; \
+ int r; \
+ \
+ assert(p); \
+ \
+ r = sd_bus_message_read(message, bus_type, &v); \
+ if (r < 0) \
+ return r; \
+ \
+ if (!check(v)) \
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, \
+ "Invalid %s setting: " fmt, name, v); \
+ \
+ if (!UNIT_WRITE_FLAGS_NOOP(flags)) { \
+ *p = (cast_type) v; \
+ unit_write_settingf(u, flags, name, \
+ "%s=" fmt, name, v); \
+ } \
+ \
+ return 1; \
+ }
+
+#define BUS_DEFINE_SET_TRANSIENT_TO_STRING(function, bus_type, type, cast_type, fmt, to_string) \
+ int bus_set_transient_##function( \
+ Unit *u, \
+ const char *name, \
+ cast_type *p, \
+ sd_bus_message *message, \
+ UnitWriteFlags flags, \
+ sd_bus_error *error) { \
+ \
+ const char *s; \
+ type v; \
+ int r; \
+ \
+ assert(p); \
+ \
+ r = sd_bus_message_read(message, bus_type, &v); \
+ if (r < 0) \
+ return r; \
+ \
+ s = to_string(v); \
+ if (!s) \
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, \
+ "Invalid %s setting: " fmt, name, v); \
+ \
+ if (!UNIT_WRITE_FLAGS_NOOP(flags)) { \
+ *p = (cast_type) v; \
+ unit_write_settingf(u, flags, name, \
+ "%s=%s", name, s); \
+ } \
+ \
+ return 1; \
+ }
+
+#define BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(function, bus_type, type, cast_type, fmt, to_string) \
+ int bus_set_transient_##function( \
+ Unit *u, \
+ const char *name, \
+ cast_type *p, \
+ sd_bus_message *message, \
+ UnitWriteFlags flags, \
+ sd_bus_error *error) { \
+ \
+ _cleanup_free_ char *s = NULL; \
+ type v; \
+ int r; \
+ \
+ assert(p); \
+ \
+ r = sd_bus_message_read(message, bus_type, &v); \
+ if (r < 0) \
+ return r; \
+ \
+ r = to_string(v, &s); \
+ if (r == -EINVAL) \
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, \
+ "Invalid %s setting: " fmt, name, v); \
+ if (r < 0) \
+ return r; \
+ \
+ if (!UNIT_WRITE_FLAGS_NOOP(flags)) { \
+ *p = (cast_type) v; \
+ unit_write_settingf(u, flags, name, \
+ "%s=%s", name, s); \
+ } \
+ \
+ return 1; \
+ }
+
+#define BUS_DEFINE_SET_TRANSIENT_PARSE(function, type, parse) \
+ int bus_set_transient_##function( \
+ Unit *u, \
+ const char *name, \
+ type *p, \
+ sd_bus_message *message, \
+ UnitWriteFlags flags, \
+ sd_bus_error *error) { \
+ \
+ const char *s; \
+ type v; \
+ int r; \
+ \
+ assert(p); \
+ \
+ r = sd_bus_message_read(message, "s", &s); \
+ if (r < 0) \
+ return r; \
+ \
+ v = parse(s); \
+ if (v < 0) \
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, \
+ "Invalid %s setting: %s", name, s); \
+ \
+ if (!UNIT_WRITE_FLAGS_NOOP(flags)) { \
+ *p = v; \
+ unit_write_settingf(u, flags, name, \
+ "%s=%s", name, s); \
+ } \
+ \
+ return 1; \
+ }
+
+#define BUS_DEFINE_SET_TRANSIENT_PARSE_PTR(function, type, parse) \
+ int bus_set_transient_##function( \
+ Unit *u, \
+ const char *name, \
+ type *p, \
+ sd_bus_message *message, \
+ UnitWriteFlags flags, \
+ sd_bus_error *error) { \
+ \
+ const char *s; \
+ type v; \
+ int r; \
+ \
+ assert(p); \
+ \
+ r = sd_bus_message_read(message, "s", &s); \
+ if (r < 0) \
+ return r; \
+ \
+ r = parse(s, &v); \
+ if (r < 0) \
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, \
+ "Invalid %s setting: %s", name, s); \
+ \
+ if (!UNIT_WRITE_FLAGS_NOOP(flags)) { \
+ *p = v; \
+ unit_write_settingf(u, flags, name, \
+ "%s=%s", name, strempty(s)); \
+ } \
+ \
+ return 1; \
+ }
+
+#define BUS_DEFINE_SET_TRANSIENT_STRING_WITH_CHECK(function, check) \
+ int bus_set_transient_##function( \
+ 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 (!isempty(v) && !check(v)) \
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, \
+ "Invalid %s setting: %s", name, v); \
+ \
+ 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_mode_t(Unit *u, const char *name, mode_t *p, sd_bus_message *message, UnitWriteFlags flags, sd_bus_error *error);
+int bus_set_transient_unsigned(Unit *u, const char *name, unsigned *p, sd_bus_message *message, UnitWriteFlags flags, sd_bus_error *error);
+int bus_set_transient_user(Unit *u, const char *name, char **p, sd_bus_message *message, UnitWriteFlags flags, sd_bus_error *error);
+int bus_set_transient_path(Unit *u, const char *name, char **p, sd_bus_message *message, UnitWriteFlags flags, sd_bus_error *error);
+int bus_set_transient_string(Unit *u, const char *name, char **p, sd_bus_message *message, UnitWriteFlags flags, sd_bus_error *error);
+int bus_set_transient_bool(Unit *u, const char *name, bool *p, sd_bus_message *message, UnitWriteFlags flags, sd_bus_error *error);
+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);
+static inline int bus_set_transient_usec(Unit *u, const char *name, usec_t *p, sd_bus_message *message, UnitWriteFlags flags, sd_bus_error *error) {
+ return bus_set_transient_usec_internal(u, name, p, false, message, flags, error);
+}
+static inline int bus_set_transient_usec_fix_0(Unit *u, const char *name, usec_t *p, sd_bus_message *message, UnitWriteFlags flags, sd_bus_error *error) {
+ return bus_set_transient_usec_internal(u, name, p, true, message, flags, error);
+}
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