route/vrf: add VRF support

http://lists.infradead.org/pipermail/libnl/2015-October/001991.html

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
[thaller@redhat.com: slightly modified original patch]
Signed-off-by: Thomas Haller <thaller@redhat.com>

2 files changed, 60 insertions, 0 deletions

diff --git a/tests/Makefile.am b/tests/Makefile.am
index edf2ee5..3a8256c 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -36,6 +36,7 @@ check_PROGRAMS = \
 	test-create-ipvti \
 	test-create-macvlan \
 	test-create-ipvlan \
+	test-create-vrf \
 	test-create-sit \
 	test-create-ifb \
 	test-delete-link \
diff --git a/tests/test-create-vrf.c b/tests/test-create-vrf.c
new file mode 100644
index 0000000..7db6d8a
--- /dev/null
+++ b/tests/test-create-vrf.c
@@ -0,0 +1,59 @@
+#include <netlink/netlink.h>
+#include <netlink/route/link.h>
+#include <netlink/route/link/vrf.h>
+
+int main(int argc, char *argv[])
+{
+	struct nl_cache *link_cache;
+	struct rtnl_link *link, *link2;
+	struct nl_sock *sk;
+	uint32_t tb_id;
+	int err;
+
+	sk = nl_socket_alloc();
+	if ((err = nl_connect(sk, NETLINK_ROUTE)) < 0) {
+		nl_perror(err, "Unable to connect socket");
+		return err;
+	}
+
+	if (!(link = rtnl_link_vrf_alloc())) {
+		fprintf(stderr, "Unable to allocate link");
+		return -1;
+	}
+
+	rtnl_link_set_name(link, "vrf-red");
+
+	if ((err = rtnl_link_vrf_set_tableid(link, 10)) < 0) {
+		nl_perror(err, "Unable to set VRF table id");
+		return err;
+	}
+
+	if ((err = rtnl_link_add(sk, link, NLM_F_CREATE)) < 0) {
+		nl_perror(err, "Unable to add link");
+		return err;
+	}
+
+	if ((err = rtnl_link_alloc_cache(sk, AF_UNSPEC, &link_cache)) < 0) {
+		nl_perror(err, "Unable to allocate cache");
+		return err;
+	}
+
+	if (!(link2 = rtnl_link_get_by_name(link_cache, "vrf-red"))) {
+		fprintf(stderr, "Unable to lookup vrf-red");
+		return -1;
+	}
+
+	if ((err = rtnl_link_vrf_get_tableid(link2, &tb_id)) < 0) {
+		nl_perror(err, "Unable to get VRF table id");
+		return err;
+	}
+
+	if (tb_id != 10) {
+		fprintf(stderr, "Mismatch with VRF table id\n");
+	}
+
+	rtnl_link_put(link);
+	nl_close(sk);
+
+	return 0;
+}