X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Flibsystemd%2Fsd-bus%2Fbus-control.c;h=cf733a663c50d2dbbdf33b618d42c2f8dc21b08c;hb=a2243d548830d2aff6b768a0b47a0f0a513012a5;hp=5ac48c081f9bac5297dfe44bd325e4094ec052ff;hpb=7f3d3ba1a61f28a951ca5fbe59ed15c7ce55219c;p=elogind.git

diff --git a/src/libsystemd/sd-bus/bus-control.c b/src/libsystemd/sd-bus/bus-control.c
index 5ac48c081..cf733a663 100644
--- a/src/libsystemd/sd-bus/bus-control.c
+++ b/src/libsystemd/sd-bus/bus-control.c
@@ -58,12 +58,15 @@ static int bus_request_name_kernel(sd_bus *bus, const char *name, uint64_t flags
         assert(bus);
         assert(name);
 
-        l = strlen(name);
-        size = offsetof(struct kdbus_cmd_name, name) + l + 1;
+        l = strlen(name) + 1;
+        size = offsetof(struct kdbus_cmd_name, items) + KDBUS_ITEM_SIZE(l);
         n = alloca0_align(size, 8);
         n->size = size;
         kdbus_translate_request_name_flags(flags, (uint64_t *) &n->flags);
-        memcpy(n->name, name, l+1);
+
+        n->items[0].size = KDBUS_ITEM_HEADER_SIZE + l;
+        n->items[0].type = KDBUS_ITEM_NAME;
+        memcpy(n->items[0].str, name, l);
 
 #ifdef HAVE_VALGRIND_MEMCHECK_H
         VALGRIND_MAKE_MEM_DEFINED(n, n->size);
@@ -144,16 +147,20 @@ _public_ int sd_bus_request_name(sd_bus *bus, const char *name, uint64_t flags)
 
 static int bus_release_name_kernel(sd_bus *bus, const char *name) {
         struct kdbus_cmd_name *n;
-        size_t l;
+        size_t size, l;
         int r;
 
         assert(bus);
         assert(name);
 
-        l = strlen(name);
-        n = alloca0_align(offsetof(struct kdbus_cmd_name, name) + l + 1, 8);
-        n->size = offsetof(struct kdbus_cmd_name, name) + l + 1;
-        memcpy(n->name, name, l+1);
+        l = strlen(name) + 1;
+        size = offsetof(struct kdbus_cmd_name, items) + KDBUS_ITEM_SIZE(l);
+        n = alloca0_align(size, 8);
+        n->size = size;
+
+        n->items[0].size = KDBUS_ITEM_HEADER_SIZE + l;
+        n->items[0].type = KDBUS_ITEM_NAME;
+        memcpy(n->items[0].str, name, l);
 
 #ifdef HAVE_VALGRIND_MEMCHECK_H
         VALGRIND_MAKE_MEM_DEFINED(n, n->size);
@@ -162,7 +169,7 @@ static int bus_release_name_kernel(sd_bus *bus, const char *name) {
         if (r < 0)
                 return -errno;
 
-        return n->flags;
+        return 0;
 }
 
 static int bus_release_name_dbus1(sd_bus *bus, const char *name) {
@@ -216,6 +223,23 @@ _public_ int sd_bus_release_name(sd_bus *bus, const char *name) {
                 return bus_release_name_dbus1(bus, name);
 }
 
+static int kernel_cmd_free(sd_bus *bus, uint64_t offset)
+{
+        struct kdbus_cmd_free cmd;
+        int r;
+
+        assert(bus);
+
+        cmd.flags = 0;
+        cmd.offset = offset;
+
+        r = ioctl(bus->input_fd, KDBUS_CMD_FREE, &cmd);
+        if (r < 0)
+                return -errno;
+
+        return 0;
+}
+
 static int kernel_get_list(sd_bus *bus, uint64_t flags, char ***x) {
         struct kdbus_cmd_name_list cmd = {};
         struct kdbus_name_list *name_list;
@@ -235,6 +259,9 @@ static int kernel_get_list(sd_bus *bus, uint64_t flags, char ***x) {
 
         KDBUS_ITEM_FOREACH(name, name_list, names) {
 
+                struct kdbus_item *item;
+                const char *entry_name = NULL;
+
                 if ((flags & KDBUS_NAME_LIST_UNIQUE) && name->owner_id != previous_id) {
                         char *n;
 
@@ -248,16 +275,20 @@ static int kernel_get_list(sd_bus *bus, uint64_t flags, char ***x) {
                         previous_id = name->owner_id;
                 }
 
-                if (name->size > sizeof(*name) && service_name_is_valid(name->name)) {
-                        r = strv_extend(x, name->name);
+                KDBUS_ITEM_FOREACH(item, name, items)
+                        if (item->type == KDBUS_ITEM_NAME)
+                                entry_name = item->str;
+
+                if (entry_name && service_name_is_valid(entry_name)) {
+                        r = strv_extend(x, entry_name);
                         if (r < 0)
                                 return -ENOMEM;
                 }
         }
 
-        r = ioctl(bus->input_fd, KDBUS_CMD_FREE, &cmd.offset);
+        r = kernel_cmd_free(bus, cmd.offset);
         if (r < 0)
-                return -errno;
+                return r;
 
         return 0;
 }
@@ -367,7 +398,7 @@ static int bus_get_owner_kdbus(
         struct kdbus_cmd_conn_info *cmd;
         struct kdbus_conn_info *conn_info;
         struct kdbus_item *item;
-        size_t size;
+        size_t size, l;
         uint64_t m, id;
         int r;
 
@@ -375,13 +406,16 @@ static int bus_get_owner_kdbus(
         if (r < 0)
                 return r;
         if (r > 0) {
-                size = offsetof(struct kdbus_cmd_conn_info, name);
+                size = offsetof(struct kdbus_cmd_conn_info, items);
                 cmd = alloca0_align(size, 8);
                 cmd->id = id;
         } else {
-                size = offsetof(struct kdbus_cmd_conn_info, name) + strlen(name) + 1;
+                l = strlen(name) + 1;
+                size = offsetof(struct kdbus_cmd_conn_info, items) + KDBUS_ITEM_SIZE(l);
                 cmd = alloca0_align(size, 8);
-                strcpy(cmd->name, name);
+                cmd->items[0].size = KDBUS_ITEM_HEADER_SIZE + l;
+                cmd->items[0].type = KDBUS_ITEM_NAME;
+                memcpy(cmd->items[0].str, name, l);
         }
 
         cmd->size = size;
@@ -579,7 +613,7 @@ static int bus_get_owner_kdbus(
         r = 0;
 
 fail:
-        ioctl(bus->input_fd, KDBUS_CMD_FREE, &cmd->offset);
+        kernel_cmd_free(bus, cmd->offset);
         return r;
 }
 
@@ -837,8 +871,8 @@ static int add_name_change_match(sd_bus *bus,
                         offsetof(struct kdbus_notify_name_change, name) +
                         l;
 
-                item->name_change.old.id = old_owner_id;
-                item->name_change.new.id = new_owner_id;
+                item->name_change.old_id.id = old_owner_id;
+                item->name_change.new_id.id = new_owner_id;
 
                 if (name)
                         memcpy(item->name_change.name, name, l);