sd-rtnl: extend type system to allow address-family to decide the union members

So far we only supported selecting them by sibling attributes.

(This stuff is all a bit crazy, but there seems to be no other way...)

1 files changed, 21 insertions, 1 deletions

diff --git a/src/libsystemd/sd-rtnl/test-rtnl.c b/src/libsystemd/sd-rtnl/test-rtnl.c
index ed60b3cb45..02f7a8e38a 100644
--- a/src/libsystemd/sd-rtnl/test-rtnl.c
+++ b/src/libsystemd/sd-rtnl/test-rtnl.c
@@ -31,8 +31,26 @@
 #include "missing.h"
 #include "rtnl-internal.h"
 
+static void test_message_link_bridge(sd_rtnl *rtnl) {
+        _cleanup_rtnl_message_unref_ sd_rtnl_message *message = NULL;
+        uint32_t cost;
+
+        assert_se(sd_rtnl_message_new_link(rtnl, &message, RTM_NEWLINK, 1) >= 0);
+        assert_se(sd_rtnl_message_link_set_family(message, PF_BRIDGE) >= 0);
+        assert_se(sd_rtnl_message_open_container(message, IFLA_PROTINFO) >= 0);
+        assert_se(sd_rtnl_message_append_u32(message, IFLA_BRPORT_COST, 10) >= 0);
+        assert_se(sd_rtnl_message_close_container(message) >= 0);
+
+        assert_se(sd_rtnl_message_rewind(message) >= 0);
+
+        assert_se(sd_rtnl_message_enter_container(message, IFLA_PROTINFO) >= 0);
+        assert_se(sd_rtnl_message_read_u32(message, IFLA_BRPORT_COST, &cost) >= 0);
+        assert_se(cost == 10);
+        assert_se(sd_rtnl_message_exit_container(message) >= 0);
+}
+
 static void test_link_configure(sd_rtnl *rtnl, int ifindex) {
-        _cleanup_rtnl_message_unref_ sd_rtnl_message *message;
+        _cleanup_rtnl_message_unref_ sd_rtnl_message *message = NULL;
         const char *mac = "98:fe:94:3f:c6:18", *name = "test";
         char buffer[ETHER_ADDR_TO_STRING_MAX];
         unsigned int mtu = 1450, mtu_out;
@@ -394,6 +412,8 @@ int main(void) {
 
         test_get_addresses(rtnl);
 
+        test_message_link_bridge(rtnl);
+
         assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, if_loopback) >= 0);
         assert_se(m);