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-rw-r--r--src/libsystemd/sd-bus/bus-objects.c82
-rw-r--r--src/libsystemd/sd-bus/test-bus-objects.c18
2 files changed, 84 insertions, 16 deletions
diff --git a/src/libsystemd/sd-bus/bus-objects.c b/src/libsystemd/sd-bus/bus-objects.c
index a973bca84c..c25293e5e9 100644
--- a/src/libsystemd/sd-bus/bus-objects.c
+++ b/src/libsystemd/sd-bus/bus-objects.c
@@ -173,6 +173,7 @@ static int add_subtree_to_set(
sd_bus *bus,
const char *prefix,
struct node *n,
+ bool skip_subhierarchies,
Set *s,
sd_bus_error *error) {
@@ -204,11 +205,13 @@ static int add_subtree_to_set(
if (r < 0 && r != -EEXIST)
return r;
- r = add_subtree_to_set(bus, prefix, i, s, error);
- if (r < 0)
- return r;
- if (bus->nodes_modified)
- return 0;
+ if (!skip_subhierarchies || !i->object_managers) {
+ r = add_subtree_to_set(bus, prefix, i, skip_subhierarchies, s, error);
+ if (r < 0)
+ return r;
+ if (bus->nodes_modified)
+ return 0;
+ }
}
return 0;
@@ -218,6 +221,7 @@ static int get_child_nodes(
sd_bus *bus,
const char *prefix,
struct node *n,
+ bool skip_subhierarchies,
Set **_s,
sd_bus_error *error) {
@@ -233,7 +237,7 @@ static int get_child_nodes(
if (!s)
return -ENOMEM;
- r = add_subtree_to_set(bus, prefix, n, s, error);
+ r = add_subtree_to_set(bus, prefix, n, skip_subhierarchies, s, error);
if (r < 0) {
set_free_free(s);
return r;
@@ -900,7 +904,7 @@ static int process_introspect(
assert(n);
assert(found_object);
- r = get_child_nodes(bus, m->path, n, &s, &error);
+ r = get_child_nodes(bus, m->path, n, false, &s, &error);
if (r < 0)
return bus_maybe_reply_error(m, r, &error);
if (bus->nodes_modified)
@@ -1166,7 +1170,7 @@ static int process_get_managed_objects(
if (require_fallback || !n->object_managers)
return 0;
- r = get_child_nodes(bus, m->path, n, &s, &error);
+ r = get_child_nodes(bus, m->path, n, true, &s, &error);
if (r < 0)
return r;
if (bus->nodes_modified)
@@ -1475,6 +1479,32 @@ void bus_node_gc(sd_bus *b, struct node *n) {
free(n);
}
+static int bus_find_parent_object_manager(sd_bus *bus, struct node **out, const char *path) {
+ struct node *n;
+
+ assert(bus);
+ assert(path);
+
+ n = hashmap_get(bus->nodes, path);
+ if (!n) {
+ char *prefix;
+
+ prefix = alloca(strlen(path) + 1);
+ OBJECT_PATH_FOREACH_PREFIX(prefix, path) {
+ n = hashmap_get(bus->nodes, prefix);
+ if (n)
+ break;
+ }
+ }
+
+ while (n && !n->object_managers)
+ n = n->parent;
+
+ if (out)
+ *out = n;
+ return !!n;
+}
+
static int bus_add_object(
sd_bus *bus,
sd_bus_slot **slot,
@@ -2277,6 +2307,7 @@ _public_ int sd_bus_emit_object_added(sd_bus *bus, const char *path) {
BUS_DONT_DESTROY(bus);
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ struct node *object_manager;
int r;
/*
@@ -2297,11 +2328,17 @@ _public_ int sd_bus_emit_object_added(sd_bus *bus, const char *path) {
if (!BUS_IS_OPEN(bus->state))
return -ENOTCONN;
+ r = bus_find_parent_object_manager(bus, &object_manager, path);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ESRCH;
+
do {
bus->nodes_modified = false;
m = sd_bus_message_unref(m);
- r = sd_bus_message_new_signal(bus, &m, path, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded");
+ r = sd_bus_message_new_signal(bus, &m, object_manager->path, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded");
if (r < 0)
return r;
@@ -2440,6 +2477,7 @@ _public_ int sd_bus_emit_object_removed(sd_bus *bus, const char *path) {
BUS_DONT_DESTROY(bus);
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ struct node *object_manager;
int r;
/*
@@ -2460,11 +2498,17 @@ _public_ int sd_bus_emit_object_removed(sd_bus *bus, const char *path) {
if (!BUS_IS_OPEN(bus->state))
return -ENOTCONN;
+ r = bus_find_parent_object_manager(bus, &object_manager, path);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ESRCH;
+
do {
bus->nodes_modified = false;
m = sd_bus_message_unref(m);
- r = sd_bus_message_new_signal(bus, &m, path, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved");
+ r = sd_bus_message_new_signal(bus, &m, object_manager->path, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved");
if (r < 0)
return r;
@@ -2596,6 +2640,7 @@ _public_ int sd_bus_emit_interfaces_added_strv(sd_bus *bus, const char *path, ch
BUS_DONT_DESTROY(bus);
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ struct node *object_manager;
char **i;
int r;
@@ -2609,11 +2654,17 @@ _public_ int sd_bus_emit_interfaces_added_strv(sd_bus *bus, const char *path, ch
if (strv_isempty(interfaces))
return 0;
+ r = bus_find_parent_object_manager(bus, &object_manager, path);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ESRCH;
+
do {
bus->nodes_modified = false;
m = sd_bus_message_unref(m);
- r = sd_bus_message_new_signal(bus, &m, path, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded");
+ r = sd_bus_message_new_signal(bus, &m, object_manager->path, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded");
if (r < 0)
return r;
@@ -2673,6 +2724,7 @@ _public_ int sd_bus_emit_interfaces_added(sd_bus *bus, const char *path, const c
_public_ int sd_bus_emit_interfaces_removed_strv(sd_bus *bus, const char *path, char **interfaces) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ struct node *object_manager;
int r;
assert_return(bus, -EINVAL);
@@ -2685,7 +2737,13 @@ _public_ int sd_bus_emit_interfaces_removed_strv(sd_bus *bus, const char *path,
if (strv_isempty(interfaces))
return 0;
- r = sd_bus_message_new_signal(bus, &m, path, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved");
+ r = bus_find_parent_object_manager(bus, &object_manager, path);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ESRCH;
+
+ r = sd_bus_message_new_signal(bus, &m, object_manager->path, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved");
if (r < 0)
return r;
diff --git a/src/libsystemd/sd-bus/test-bus-objects.c b/src/libsystemd/sd-bus/test-bus-objects.c
index 1db67ecfac..359984c7f3 100644
--- a/src/libsystemd/sd-bus/test-bus-objects.c
+++ b/src/libsystemd/sd-bus/test-bus-objects.c
@@ -153,7 +153,7 @@ static int notify_test2(sd_bus_message *m, void *userdata, sd_bus_error *error)
static int emit_interfaces_added(sd_bus_message *m, void *userdata, sd_bus_error *error) {
int r;
- assert_se(sd_bus_emit_interfaces_added(sd_bus_message_get_bus(m), m->path, "org.freedesktop.systemd.test", NULL) >= 0);
+ assert_se(sd_bus_emit_interfaces_added(sd_bus_message_get_bus(m), "/value/a/x", "org.freedesktop.systemd.ValueTest", NULL) >= 0);
r = sd_bus_reply_method_return(m, NULL);
assert_se(r >= 0);
@@ -164,7 +164,7 @@ static int emit_interfaces_added(sd_bus_message *m, void *userdata, sd_bus_error
static int emit_interfaces_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
int r;
- assert_se(sd_bus_emit_interfaces_removed(sd_bus_message_get_bus(m), m->path, "org.freedesktop.systemd.test", NULL) >= 0);
+ assert_se(sd_bus_emit_interfaces_removed(sd_bus_message_get_bus(m), "/value/a/x", "org.freedesktop.systemd.ValueTest", NULL) >= 0);
r = sd_bus_reply_method_return(m, NULL);
assert_se(r >= 0);
@@ -175,7 +175,7 @@ static int emit_interfaces_removed(sd_bus_message *m, void *userdata, sd_bus_err
static int emit_object_added(sd_bus_message *m, void *userdata, sd_bus_error *error) {
int r;
- assert_se(sd_bus_emit_object_added(sd_bus_message_get_bus(m), m->path) >= 0);
+ assert_se(sd_bus_emit_object_added(sd_bus_message_get_bus(m), "/value/a/x") >= 0);
r = sd_bus_reply_method_return(m, NULL);
assert_se(r >= 0);
@@ -186,7 +186,7 @@ static int emit_object_added(sd_bus_message *m, void *userdata, sd_bus_error *er
static int emit_object_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
int r;
- assert_se(sd_bus_emit_object_removed(sd_bus_message_get_bus(m), m->path) >= 0);
+ assert_se(sd_bus_emit_object_removed(sd_bus_message_get_bus(m), "/value/a/x") >= 0);
r = sd_bus_reply_method_return(m, NULL);
assert_se(r >= 0);
@@ -228,6 +228,14 @@ static int enumerator_callback(sd_bus *bus, const char *path, void *userdata, ch
return 1;
}
+static int enumerator2_callback(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
+
+ if (object_path_startswith("/value/a", path))
+ assert_se(*nodes = strv_new("/value/a/x", "/value/a/y", "/value/a/z", NULL));
+
+ return 1;
+}
+
static void *server(void *p) {
struct context *c = p;
sd_bus *bus = NULL;
@@ -246,7 +254,9 @@ static void *server(void *p) {
assert_se(sd_bus_add_object_vtable(bus, NULL, "/foo", "org.freedesktop.systemd.test2", vtable, c) >= 0);
assert_se(sd_bus_add_fallback_vtable(bus, NULL, "/value", "org.freedesktop.systemd.ValueTest", vtable2, NULL, UINT_TO_PTR(20)) >= 0);
assert_se(sd_bus_add_node_enumerator(bus, NULL, "/value", enumerator_callback, NULL) >= 0);
+ assert_se(sd_bus_add_node_enumerator(bus, NULL, "/value/a", enumerator2_callback, NULL) >= 0);
assert_se(sd_bus_add_object_manager(bus, NULL, "/value") >= 0);
+ assert_se(sd_bus_add_object_manager(bus, NULL, "/value/a") >= 0);
assert_se(sd_bus_start(bus) >= 0);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-28 08:19:57 +0000