sd-rtnl: add sd_rtnl_message_route_get_family

2 files changed, 16 insertions, 0 deletions

diff --git a/src/libsystemd/sd-rtnl/rtnl-message.c b/src/libsystemd/sd-rtnl/rtnl-message.c
index 44ad303198..22ee4c5042 100644
--- a/src/libsystemd/sd-rtnl/rtnl-message.c
+++ b/src/libsystemd/sd-rtnl/rtnl-message.c
@@ -128,6 +128,21 @@ int sd_rtnl_message_route_set_scope(sd_rtnl_message *m, unsigned char scope) {
         return 0;
 }
 
+int sd_rtnl_message_route_get_family(sd_rtnl_message *m, int *family) {
+        struct rtmsg *rtm;
+
+        assert_return(m, -EINVAL);
+        assert_return(m->hdr, -EINVAL);
+        assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
+        assert_return(family, -EINVAL);
+
+        rtm = NLMSG_DATA(m->hdr);
+
+        *family = rtm->rtm_family;
+
+        return 0;
+}
+
 int sd_rtnl_message_new_route(sd_rtnl *rtnl, sd_rtnl_message **ret,
                               uint16_t nlmsg_type, int rtm_family,
                               unsigned char rtm_protocol) {
diff --git a/src/systemd/sd-rtnl.h b/src/systemd/sd-rtnl.h
index 95bdb1d3d6..0d17b16eb0 100644
--- a/src/systemd/sd-rtnl.h
+++ b/src/systemd/sd-rtnl.h
@@ -101,6 +101,7 @@ int sd_rtnl_message_link_get_type(sd_rtnl_message *m, unsigned *type);
 
 int sd_rtnl_message_route_set_dst_prefixlen(sd_rtnl_message *m, unsigned char prefixlen);
 int sd_rtnl_message_route_set_scope(sd_rtnl_message *m, unsigned char scope);
+int sd_rtnl_message_route_get_family(sd_rtnl_message *m, int *family);
 
 int sd_rtnl_message_append_string(sd_rtnl_message *m, unsigned short type, const char *data);
 int sd_rtnl_message_append_u8(sd_rtnl_message *m, unsigned short type, uint8_t data);