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path: root/src/libsystemd/sd-bus/bus-objects.c
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Diffstat (limited to 'src/libsystemd/sd-bus/bus-objects.c')
-rw-r--r--src/libsystemd/sd-bus/bus-objects.c100
1 files changed, 85 insertions, 15 deletions
diff --git a/src/libsystemd/sd-bus/bus-objects.c b/src/libsystemd/sd-bus/bus-objects.c
index e4bbd880e5..c25293e5e9 100644
--- a/src/libsystemd/sd-bus/bus-objects.c
+++ b/src/libsystemd/sd-bus/bus-objects.c
@@ -68,6 +68,12 @@ static int node_vtable_get_userdata(
return 1;
}
+static void *vtable_method_convert_userdata(const sd_bus_vtable *p, void *u) {
+ assert(p);
+
+ return (uint8_t*) u + p->x.method.offset;
+}
+
static void *vtable_property_convert_userdata(const sd_bus_vtable *p, void *u) {
assert(p);
@@ -167,6 +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) {
@@ -198,11 +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;
@@ -212,6 +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) {
@@ -227,7 +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;
@@ -360,6 +370,8 @@ static int method_callbacks_run(
if (bus->nodes_modified)
return 0;
+ u = vtable_method_convert_userdata(c->vtable, u);
+
*found_object = true;
if (c->last_iteration == bus->iteration_counter)
@@ -892,7 +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)
@@ -1158,12 +1170,16 @@ 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)
return 0;
+ r = set_put_strdup(s, m->path);
+ if (r < 0)
+ return r;
+
r = sd_bus_message_new_method_return(m, &reply);
if (r < 0)
return r;
@@ -1412,7 +1428,7 @@ static struct node *bus_node_allocate(sd_bus *bus, const char *path) {
e = strrchr(path, '/');
assert(e);
- p = strndupa(path, MAX(1, path - e));
+ p = strndupa(path, MAX(1, e - path));
parent = bus_node_allocate(bus, p);
if (!parent)
@@ -1463,6 +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,
@@ -2261,10 +2303,11 @@ static int object_added_append_all(sd_bus *bus, sd_bus_message *m, const char *p
return 0;
}
-int sd_bus_emit_object_added(sd_bus *bus, const char *path) {
+_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;
/*
@@ -2285,11 +2328,17 @@ 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;
@@ -2424,10 +2473,11 @@ static int object_removed_append_all(sd_bus *bus, sd_bus_message *m, const char
return 0;
}
-int sd_bus_emit_object_removed(sd_bus *bus, const char *path) {
+_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;
/*
@@ -2448,11 +2498,17 @@ 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;
@@ -2584,6 +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;
@@ -2597,11 +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;
@@ -2661,6 +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);
@@ -2673,7 +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;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-26 15:03:55 +0000