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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
commitb750101eb236130cf056c675997decbac904cc49 (patch)
treea5df1a06754bdd014cb975c051c83b01c9a97532 /src/shared/bus-map-properties.c
parentInitial commit. (diff)
downloadsystemd-b750101eb236130cf056c675997decbac904cc49.tar.xz
systemd-b750101eb236130cf056c675997decbac904cc49.zip
Adding upstream version 252.22.upstream/252.22
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/shared/bus-map-properties.c')
-rw-r--r--src/shared/bus-map-properties.c246
1 files changed, 246 insertions, 0 deletions
diff --git a/src/shared/bus-map-properties.c b/src/shared/bus-map-properties.c
new file mode 100644
index 0000000..e5e8933
--- /dev/null
+++ b/src/shared/bus-map-properties.c
@@ -0,0 +1,246 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "bus-map-properties.h"
+#include "alloc-util.h"
+#include "strv.h"
+#include "bus-message.h"
+
+int bus_map_id128(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
+ sd_id128_t *p = userdata;
+ const void *v;
+ size_t n;
+ int r;
+
+ r = sd_bus_message_read_array(m, SD_BUS_TYPE_BYTE, &v, &n);
+ if (r < 0)
+ return r;
+
+ if (n == 0)
+ *p = SD_ID128_NULL;
+ else if (n == 16)
+ memcpy((*p).bytes, v, n);
+ else
+ return -EINVAL;
+
+ return 0;
+}
+
+int bus_map_strv_sort(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
+ _cleanup_strv_free_ char **l = NULL;
+ char ***p = userdata;
+ int r;
+
+ r = sd_bus_message_read_strv_extend(m, &l);
+ if (r < 0)
+ return r;
+
+ r = strv_extend_strv(p, l, false);
+ if (r < 0)
+ return r;
+
+ strv_sort(*p);
+ return 0;
+}
+
+static int map_basic(sd_bus *bus, const char *member, sd_bus_message *m, unsigned flags, sd_bus_error *error, void *userdata) {
+ char type;
+ int r;
+
+ r = sd_bus_message_peek_type(m, &type, NULL);
+ if (r < 0)
+ return r;
+
+ switch (type) {
+
+ case SD_BUS_TYPE_STRING:
+ case SD_BUS_TYPE_OBJECT_PATH: {
+ const char **p = userdata;
+ const char *s;
+
+ r = sd_bus_message_read_basic(m, type, &s);
+ if (r < 0)
+ return r;
+
+ if (isempty(s))
+ s = NULL;
+
+ if (flags & BUS_MAP_STRDUP)
+ return free_and_strdup((char **) userdata, s);
+
+ *p = s;
+ return 0;
+ }
+
+ case SD_BUS_TYPE_ARRAY: {
+ _cleanup_strv_free_ char **l = NULL;
+ char ***p = userdata;
+
+ r = sd_bus_message_read_strv_extend(m, &l);
+ if (r < 0)
+ return r;
+
+ return strv_extend_strv(p, l, false);
+ }
+
+ case SD_BUS_TYPE_BOOLEAN: {
+ int b;
+
+ r = sd_bus_message_read_basic(m, type, &b);
+ if (r < 0)
+ return r;
+
+ if (flags & BUS_MAP_BOOLEAN_AS_BOOL)
+ *(bool*) userdata = b;
+ else
+ *(int*) userdata = b;
+
+ return 0;
+ }
+
+ case SD_BUS_TYPE_INT32:
+ case SD_BUS_TYPE_UINT32: {
+ uint32_t u, *p = userdata;
+
+ r = sd_bus_message_read_basic(m, type, &u);
+ if (r < 0)
+ return r;
+
+ *p = u;
+ return 0;
+ }
+
+ case SD_BUS_TYPE_INT64:
+ case SD_BUS_TYPE_UINT64: {
+ uint64_t t, *p = userdata;
+
+ r = sd_bus_message_read_basic(m, type, &t);
+ if (r < 0)
+ return r;
+
+ *p = t;
+ return 0;
+ }
+
+ case SD_BUS_TYPE_DOUBLE: {
+ double d, *p = userdata;
+
+ r = sd_bus_message_read_basic(m, type, &d);
+ if (r < 0)
+ return r;
+
+ *p = d;
+ return 0;
+ }}
+
+ return -EOPNOTSUPP;
+}
+
+int bus_message_map_all_properties(
+ sd_bus_message *m,
+ const struct bus_properties_map *map,
+ unsigned flags,
+ sd_bus_error *error,
+ void *userdata) {
+
+ int r;
+
+ assert(m);
+ assert(map);
+
+ r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "{sv}");
+ if (r < 0)
+ return r;
+
+ while ((r = sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
+ const struct bus_properties_map *prop;
+ const char *member;
+ const char *contents;
+ void *v;
+ unsigned i;
+
+ r = sd_bus_message_read_basic(m, SD_BUS_TYPE_STRING, &member);
+ if (r < 0)
+ return r;
+
+ for (i = 0, prop = NULL; map[i].member; i++)
+ if (streq(map[i].member, member)) {
+ prop = &map[i];
+ break;
+ }
+
+ if (prop) {
+ r = sd_bus_message_peek_type(m, NULL, &contents);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_enter_container(m, SD_BUS_TYPE_VARIANT, contents);
+ if (r < 0)
+ return r;
+
+ v = (uint8_t *)userdata + prop->offset;
+ if (map[i].set)
+ r = prop->set(sd_bus_message_get_bus(m), member, m, error, v);
+ else
+ r = map_basic(sd_bus_message_get_bus(m), member, m, flags, error, v);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_exit_container(m);
+ if (r < 0)
+ return r;
+ } else {
+ r = sd_bus_message_skip(m, "v");
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_bus_message_exit_container(m);
+ if (r < 0)
+ return r;
+ }
+ if (r < 0)
+ return r;
+
+ return sd_bus_message_exit_container(m);
+}
+
+int bus_map_all_properties(
+ sd_bus *bus,
+ const char *destination,
+ const char *path,
+ const struct bus_properties_map *map,
+ unsigned flags,
+ sd_bus_error *error,
+ sd_bus_message **reply,
+ void *userdata) {
+
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
+ int r;
+
+ assert(bus);
+ assert(destination);
+ assert(path);
+ assert(map);
+ assert(reply || (flags & BUS_MAP_STRDUP));
+
+ r = sd_bus_call_method(
+ bus,
+ destination,
+ path,
+ "org.freedesktop.DBus.Properties",
+ "GetAll",
+ error,
+ &m,
+ "s", "");
+ if (r < 0)
+ return r;
+
+ r = bus_message_map_all_properties(m, map, flags, error, userdata);
+ if (r < 0)
+ return r;
+
+ if (reply)
+ *reply = sd_bus_message_ref(m);
+
+ return r;
+}