X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Flibelogind%2Fsd-bus%2Fbus-objects.c;h=7e3cd86f6567a92d0912f910e462426818af9a08;hp=e4bbd880e5b60ce435b0b78e692b6c7bf363b2bb;hb=31b940441e3c62fcdba8943307955df357cce085;hpb=81295bb5aced5d5350db11b0e9bb284e22d2ac37

diff --git a/src/libelogind/sd-bus/bus-objects.c b/src/libelogind/sd-bus/bus-objects.c
index e4bbd880e..7e3cd86f6 100644
--- a/src/libelogind/sd-bus/bus-objects.c
+++ b/src/libelogind/sd-bus/bus-objects.c
@@ -167,6 +167,7 @@ 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 +199,13 @@ 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 +215,7 @@ 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 +231,7 @@ 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;
@@ -892,7 +896,7 @@ 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 +1162,16 @@ 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 +1420,7 @@ 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 +1471,32 @@ 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 +2295,11 @@ 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 +2320,17 @@ 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 +2465,11 @@ 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 +2490,17 @@ 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 +2632,7 @@ _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 +2646,17 @@ _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 +2716,7 @@ _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 +2729,13 @@ _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;