X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Flibsystemd%2Fsd-rtnl%2Ftest-rtnl.c;h=dd74e76ed4d27842b5eff76c846a76aa70fb505a;hp=58654e990a8f2dac38c624d0ef4dcd6d5bc17408;hb=12e0f830f592ec4c6bb49ac7ae1e0e84f74105e3;hpb=607553f9306286fdccf0b356bc3d1087adfe21c4

diff --git a/src/libsystemd/sd-rtnl/test-rtnl.c b/src/libsystemd/sd-rtnl/test-rtnl.c
index 58654e990..dd74e76ed 100644
--- a/src/libsystemd/sd-rtnl/test-rtnl.c
+++ b/src/libsystemd/sd-rtnl/test-rtnl.c
@@ -19,7 +19,6 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <linux/rtnetlink.h>
 #include <netinet/ether.h>
 
 #include "util.h"
@@ -28,44 +27,116 @@
 #include "socket-util.h"
 #include "rtnl-util.h"
 #include "event-util.h"
+#include "missing.h"
 
 static void test_link_configure(sd_rtnl *rtnl, int ifindex) {
-        _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *message;
+        _cleanup_rtnl_message_unref_ sd_rtnl_message *message;
         uint16_t type;
         const char *mac = "98:fe:94:3f:c6:18", *name = "test";
         unsigned int mtu = 1450;
         void *data;
 
         /* we'd really like to test NEWLINK, but let's not mess with the running kernel */
-        assert(sd_rtnl_message_link_new(RTM_GETLINK, ifindex, &message) >= 0);
-        assert(sd_rtnl_message_append_string(message, IFLA_IFNAME, name) >= 0);
-        assert(sd_rtnl_message_append_ether_addr(message, IFLA_ADDRESS, ether_aton(mac)) >= 0);
-        assert(sd_rtnl_message_append_u32(message, IFLA_MTU, mtu) >= 0);
+        assert_se(sd_rtnl_message_new_link(rtnl, &message, RTM_GETLINK, ifindex) >= 0);
+        assert_se(sd_rtnl_message_append_string(message, IFLA_IFNAME, name) >= 0);
+        assert_se(sd_rtnl_message_append_ether_addr(message, IFLA_ADDRESS, ether_aton(mac)) >= 0);
+        assert_se(sd_rtnl_message_append_u32(message, IFLA_MTU, mtu) >= 0);
 
-        assert(sd_rtnl_message_read(message, &type, &data) > 0);
-        assert(type == IFLA_IFNAME);
-        assert(streq(name, (char *) data));
+        assert_se(sd_rtnl_call(rtnl, message, 0, NULL) == 1);
 
-        assert(sd_rtnl_message_read(message, &type, &data) > 0);
-        assert(type == IFLA_ADDRESS);
-        assert(streq(mac, ether_ntoa(data)));
+        assert_se(sd_rtnl_message_read(message, &type, &data) > 0);
+        assert_se(type == IFLA_IFNAME);
+        assert_se(streq(name, (char *) data));
 
-        assert(sd_rtnl_message_read(message, &type, &data) > 0);
-        assert(type == IFLA_MTU);
-        assert(mtu == *(unsigned int *) data);
+        assert_se(sd_rtnl_message_read(message, &type, &data) > 0);
+        assert_se(type == IFLA_ADDRESS);
+        assert_se(streq(mac, ether_ntoa(data)));
+
+        assert_se(sd_rtnl_message_read(message, &type, &data) > 0);
+        assert_se(type == IFLA_MTU);
+        assert_se(mtu == *(unsigned int *) data);
+}
+
+static void test_link_get(sd_rtnl *rtnl, int ifindex) {
+        sd_rtnl_message *m;
+        sd_rtnl_message *r;
+        unsigned int mtu = 1500;
+        unsigned int *mtu_reply;
+        void *data;
+        uint16_t type;
+
+        assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, ifindex) >= 0);
+        assert_se(m);
+
+        /* u8 test cases  */
+        assert_se(sd_rtnl_message_append_u8(m, IFLA_CARRIER, 0) >= 0);
+        assert_se(sd_rtnl_message_append_u8(m, IFLA_OPERSTATE, 0) >= 0);
+        assert_se(sd_rtnl_message_append_u8(m, IFLA_LINKMODE, 0) >= 0);
+
+        /* u32 test cases */
+        assert_se(sd_rtnl_message_append_u32(m, IFLA_MTU, mtu) >= 0);
+        assert_se(sd_rtnl_message_append_u32(m, IFLA_GROUP, 0) >= 0);
+        assert_se(sd_rtnl_message_append_u32(m, IFLA_TXQLEN, 0) >= 0);
+        assert_se(sd_rtnl_message_append_u32(m, IFLA_NUM_TX_QUEUES, 0) >= 0);
+        assert_se(sd_rtnl_message_append_u32(m, IFLA_NUM_RX_QUEUES, 0) >= 0);
+
+        assert_se(sd_rtnl_call(rtnl, m, -1, &r) == 1);
+
+        /* u8 read back */
+        assert_se(sd_rtnl_message_read(m, &type, &data) == 1);
+        assert_se(type == IFLA_CARRIER);
+
+        assert_se(sd_rtnl_message_read(m, &type, &data) == 1);
+        assert_se(type == IFLA_OPERSTATE);
+
+        assert_se(sd_rtnl_message_read(m, &type, &data) == 1);
+        assert_se(type == IFLA_LINKMODE);
+
+        /* u32 read back */
+        assert_se(sd_rtnl_message_read(m, &type, (void **) &mtu_reply) == 1);
+        assert_se(type == IFLA_MTU);
+        assert_se(*mtu_reply == mtu);
+
+        assert_se(sd_rtnl_message_read(m, &type, &data) == 1);
+        assert_se(type == IFLA_GROUP);
+
+        assert_se(sd_rtnl_message_read(m, &type, &data) == 1);
+        assert_se(type == IFLA_TXQLEN);
+
+        assert_se(sd_rtnl_message_read(m, &type, &data) == 1);
+        assert_se(type == IFLA_NUM_TX_QUEUES);
+
+        assert_se(sd_rtnl_message_read(m, &type, &data) == 1);
+        assert_se(type == IFLA_NUM_RX_QUEUES);
+
+        while (sd_rtnl_message_read(r, &type, &data) > 0) {
+                switch (type) {
+//                        case IFLA_MTU:
+//                                assert_se(*(unsigned int *) data == 65536);
+//                                break;
+//                        case IFLA_QDISC:
+//                                assert_se(streq((char *) data, "noqueue"));
+//                                break;
+                        case IFLA_IFNAME:
+                                assert_se(streq((char *) data, "lo"));
+                                break;
+                }
+        }
+
+        assert_se(sd_rtnl_flush(rtnl) >= 0);
+        assert_se((m = sd_rtnl_message_unref(m)) == NULL);
 
-        assert(sd_rtnl_call(rtnl, message, 0, NULL) == 1);
 }
 
 static void test_route(void) {
-        _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *req;
+        _cleanup_rtnl_message_unref_ sd_rtnl_message *req;
         struct in_addr addr;
         uint32_t index = 2;
         uint16_t type;
         void *data;
         int r;
 
-        r = sd_rtnl_message_route_new(RTM_NEWROUTE, AF_INET, &req);
+        r = sd_rtnl_message_new_route(NULL, &req, RTM_NEWROUTE, AF_INET);
         if (r < 0) {
                 log_error("Could not create RTM_NEWROUTE message: %s", strerror(-r));
                 return;
@@ -85,20 +156,22 @@ static void test_route(void) {
                 return;
         }
 
-        assert(sd_rtnl_message_read(req, &type, &data) > 0);
-        assert(type == RTA_GATEWAY);
-        assert(((struct in_addr *)data)->s_addr == addr.s_addr);
+        assert_se(rtnl_message_seal(NULL, req) >= 0);
+
+        assert_se(sd_rtnl_message_read(req, &type, &data) > 0);
+        assert_se(type == RTA_GATEWAY);
+        assert_se(((struct in_addr *)data)->s_addr == addr.s_addr);
 
-        assert(sd_rtnl_message_read(req, &type, &data) > 0);
-        assert(type == RTA_OIF);
-        assert(*(uint32_t *) data == index);
+        assert_se(sd_rtnl_message_read(req, &type, &data) > 0);
+        assert_se(type == RTA_OIF);
+        assert_se(*(uint32_t *) data == index);
 }
 
 static void test_multiple(void) {
         sd_rtnl *rtnl1, *rtnl2;
 
-        assert(sd_rtnl_open(0, &rtnl1) >= 0);
-        assert(sd_rtnl_open(0, &rtnl2) >= 0);
+        assert_se(sd_rtnl_open(&rtnl1, 0) >= 0);
+        assert_se(sd_rtnl_open(&rtnl2, 0) >= 0);
 
         rtnl1 = sd_rtnl_unref(rtnl1);
         rtnl2 = sd_rtnl_unref(rtnl2);
@@ -109,8 +182,8 @@ static int link_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
         uint16_t type;
         char *ifname = userdata;
 
-        assert(rtnl);
-        assert(m);
+        assert_se(rtnl);
+        assert_se(m);
 
         log_info("got link info about %s", ifname);
         free(ifname);
@@ -118,13 +191,13 @@ static int link_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
         while (sd_rtnl_message_read(m, &type, &data) > 0) {
                 switch (type) {
 //                        case IFLA_MTU:
-//                                assert(*(unsigned int *) data == 65536);
+//                                assert_se(*(unsigned int *) data == 65536);
 //                                break;
 //                        case IFLA_QDISC:
-//                                assert(streq((char *) data, "noqueue"));
+//                                assert_se(streq((char *) data, "noqueue"));
 //                                break;
                         case IFLA_IFNAME:
-                                assert(streq((char *) data, "lo"));
+                                assert_se(streq((char *) data, "lo"));
                                 break;
                 }
         }
@@ -134,25 +207,25 @@ static int link_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
 
 static void test_event_loop(int ifindex) {
         _cleanup_event_unref_ sd_event *event = NULL;
-        _cleanup_sd_rtnl_unref_ sd_rtnl *rtnl = NULL;
-        _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *m = NULL;
+        _cleanup_rtnl_unref_ sd_rtnl *rtnl = NULL;
+        _cleanup_rtnl_message_unref_ sd_rtnl_message *m = NULL;
         char *ifname;
 
         ifname = strdup("lo2");
-        assert(ifname);
+        assert_se(ifname);
 
-        assert(sd_rtnl_open(0, &rtnl) >= 0);
-        assert(sd_rtnl_message_link_new(RTM_GETLINK, ifindex, &m) >= 0);
+        assert_se(sd_rtnl_open(&rtnl, 0) >= 0);
+        assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, ifindex) >= 0);
 
-        assert(sd_rtnl_call_async(rtnl, m, &link_handler, ifname, 0, NULL) >= 0);
+        assert_se(sd_rtnl_call_async(rtnl, m, &link_handler, ifname, 0, NULL) >= 0);
 
-        assert(sd_event_default(&event) >= 0);
+        assert_se(sd_event_default(&event) >= 0);
 
-        assert(sd_rtnl_attach_event(rtnl, event, 0) >= 0);
+        assert_se(sd_rtnl_attach_event(rtnl, event, 0) >= 0);
 
-        assert(sd_event_run(event, 0) >= 0);
+        assert_se(sd_event_run(event, 0) >= 0);
 
-        assert(sd_rtnl_detach_event(rtnl) >= 0);
+        assert_se(sd_rtnl_detach_event(rtnl) >= 0);
 }
 
 static int pipe_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
@@ -166,81 +239,99 @@ static int pipe_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
 }
 
 static void test_async(int ifindex) {
-        _cleanup_sd_rtnl_unref_ sd_rtnl *rtnl = NULL;
-        _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *m = NULL, *r = NULL;
+        _cleanup_rtnl_unref_ sd_rtnl *rtnl = NULL;
+        _cleanup_rtnl_message_unref_ sd_rtnl_message *m = NULL, *r = NULL;
         uint32_t serial;
         char *ifname;
 
         ifname = strdup("lo");
-        assert(ifname);
+        assert_se(ifname);
 
-        assert(sd_rtnl_open(0, &rtnl) >= 0);
+        assert_se(sd_rtnl_open(&rtnl, 0) >= 0);
 
-        assert(sd_rtnl_message_link_new(RTM_GETLINK, ifindex, &m) >= 0);
+        assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, ifindex) >= 0);
 
-        assert(sd_rtnl_call_async(rtnl, m, &link_handler, ifname, 0, &serial) >= 0);
+        assert_se(sd_rtnl_call_async(rtnl, m, &link_handler, ifname, 0, &serial) >= 0);
 
-        assert(sd_rtnl_wait(rtnl, 0) >= 0);
-        assert(sd_rtnl_process(rtnl, &r) >= 0);
+        assert_se(sd_rtnl_wait(rtnl, 0) >= 0);
+        assert_se(sd_rtnl_process(rtnl, &r) >= 0);
 }
 
 static void test_pipe(int ifindex) {
-        _cleanup_sd_rtnl_unref_ sd_rtnl *rtnl = NULL;
-        _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *m1 = NULL, *m2 = NULL;
+        _cleanup_rtnl_unref_ sd_rtnl *rtnl = NULL;
+        _cleanup_rtnl_message_unref_ sd_rtnl_message *m1 = NULL, *m2 = NULL;
         int counter = 0;
 
-        assert(sd_rtnl_open(0, &rtnl) >= 0);
+        assert_se(sd_rtnl_open(&rtnl, 0) >= 0);
 
-        assert(sd_rtnl_message_link_new(RTM_GETLINK, ifindex, &m1) >= 0);
-        assert(sd_rtnl_message_link_new(RTM_GETLINK, ifindex, &m2) >= 0);
+        assert_se(sd_rtnl_message_new_link(rtnl, &m1, RTM_GETLINK, ifindex) >= 0);
+        assert_se(sd_rtnl_message_new_link(rtnl, &m2, RTM_GETLINK, ifindex) >= 0);
 
         counter ++;
-        assert(sd_rtnl_call_async(rtnl, m1, &pipe_handler, &counter, 0, NULL) >= 0);
+        assert_se(sd_rtnl_call_async(rtnl, m1, &pipe_handler, &counter, 0, NULL) >= 0);
 
         counter ++;
-        assert(sd_rtnl_call_async(rtnl, m2, &pipe_handler, &counter, 0, NULL) >= 0);
+        assert_se(sd_rtnl_call_async(rtnl, m2, &pipe_handler, &counter, 0, NULL) >= 0);
 
         while (counter > 0) {
-                assert(sd_rtnl_wait(rtnl, 0) >= 0);
-                assert(sd_rtnl_process(rtnl, NULL) >= 0);
+                assert_se(sd_rtnl_wait(rtnl, 0) >= 0);
+                assert_se(sd_rtnl_process(rtnl, NULL) >= 0);
         }
 }
 
 static void test_container(void) {
-        _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *m = NULL;
+        _cleanup_rtnl_message_unref_ sd_rtnl_message *m = NULL;
         uint16_t type;
         void *data;
 
-        assert(sd_rtnl_message_link_new(RTM_NEWLINK, 0, &m) >= 0);
-
-        assert(sd_rtnl_message_open_container(m, IFLA_LINKINFO) >= 0);
-        assert(sd_rtnl_message_open_container(m, IFLA_LINKINFO) == -EINVAL);
-        assert(sd_rtnl_message_append_string(m, IFLA_INFO_KIND, "kind") >= 0);
-        assert(sd_rtnl_message_close_container(m) >= 0);
-        assert(sd_rtnl_message_close_container(m) == -EINVAL);
-
-        assert(sd_rtnl_message_read(m, &type, &data) == -EINVAL);
-
-/* TODO: add support for entering containers
-        assert(sd_rtnl_message_read(m, &type, &data) > 0);
-        assert(type == IFLA_INFO_KIND);
-        assert(streq("kind", (char *) data));
-
-        assert(sd_rtnl_message_read(m, &type, &data) == 0);
-*/
+        assert_se(sd_rtnl_message_new_link(NULL, &m, RTM_NEWLINK, 0) >= 0);
+
+        assert_se(sd_rtnl_message_open_container(m, IFLA_LINKINFO) >= 0);
+        assert_se(sd_rtnl_message_open_container(m, IFLA_LINKINFO) == -ENOTSUP);
+        assert_se(sd_rtnl_message_append_string(m, IFLA_INFO_KIND, "kind") >= 0);
+        assert_se(sd_rtnl_message_open_container(m, IFLA_INFO_DATA) >= 0);
+        assert_se(sd_rtnl_message_open_container(m, IFLA_INFO_DATA) == -ENOTSUP);
+        assert_se(sd_rtnl_message_append_u16(m, IFLA_VLAN_ID, 100) >= 0);
+        assert_se(sd_rtnl_message_close_container(m) >= 0);
+        assert_se(sd_rtnl_message_append_string(m, IFLA_INFO_KIND, "kind") >= 0);
+        assert_se(sd_rtnl_message_close_container(m) >= 0);
+        assert_se(sd_rtnl_message_close_container(m) == -EINVAL);
+
+        assert_se(rtnl_message_seal(NULL, m) >= 0);
+
+        assert_se(sd_rtnl_message_read(m, &type, &data) >= 0);
+        assert_se(type == IFLA_LINKINFO);
+        assert_se(data == NULL);
+        assert_se(sd_rtnl_message_read(m, &type, &data) >= 0);
+        assert_se(type == IFLA_INFO_KIND);
+        assert_se(streq("kind", (char *)data));
+        assert_se(sd_rtnl_message_read(m, &type, &data) >= 0);
+        assert_se(type == IFLA_INFO_DATA);
+        assert_se(data == NULL);
+        assert_se(sd_rtnl_message_read(m, &type, &data) >= 0);
+        assert_se(type == IFLA_VLAN_ID);
+        assert_se(*(uint16_t *)data == 100);
+        assert_se(sd_rtnl_message_read(m, &type, &data) == 0);
+        assert_se(sd_rtnl_message_exit_container(m) >= 0);
+        assert_se(sd_rtnl_message_read(m, &type, &data) >= 0);
+        assert_se(type == IFLA_INFO_KIND);
+        assert_se(streq("kind", (char *)data));
+        assert_se(sd_rtnl_message_read(m, &type, &data) == 0);
+        assert_se(sd_rtnl_message_exit_container(m) >= 0);
+        assert_se(sd_rtnl_message_exit_container(m) == -EINVAL);
 }
 
 static void test_match(void) {
-        _cleanup_sd_rtnl_unref_ sd_rtnl *rtnl = NULL;
+        _cleanup_rtnl_unref_ sd_rtnl *rtnl = NULL;
 
-        assert(sd_rtnl_open(0, &rtnl) >= 0);
+        assert_se(sd_rtnl_open(&rtnl, 0) >= 0);
 
-        assert(sd_rtnl_add_match(rtnl, RTM_NEWLINK, &link_handler, NULL) >= 0);
-        assert(sd_rtnl_add_match(rtnl, RTM_NEWLINK, &link_handler, NULL) >= 0);
+        assert_se(sd_rtnl_add_match(rtnl, RTM_NEWLINK, &link_handler, NULL) >= 0);
+        assert_se(sd_rtnl_add_match(rtnl, RTM_NEWLINK, &link_handler, NULL) >= 0);
 
-        assert(sd_rtnl_remove_match(rtnl, RTM_NEWLINK, &link_handler, NULL) == 1);
-        assert(sd_rtnl_remove_match(rtnl, RTM_NEWLINK, &link_handler, NULL) == 1);
-        assert(sd_rtnl_remove_match(rtnl, RTM_NEWLINK, &link_handler, NULL) == 0);
+        assert_se(sd_rtnl_remove_match(rtnl, RTM_NEWLINK, &link_handler, NULL) == 1);
+        assert_se(sd_rtnl_remove_match(rtnl, RTM_NEWLINK, &link_handler, NULL) == 1);
+        assert_se(sd_rtnl_remove_match(rtnl, RTM_NEWLINK, &link_handler, NULL) == 0);
 }
 
 int main(void) {
@@ -250,8 +341,6 @@ int main(void) {
         void *data;
         int if_loopback;
         uint16_t type;
-        unsigned int mtu = 0;
-        unsigned int *mtu_reply;
 
         test_match();
 
@@ -261,11 +350,11 @@ int main(void) {
 
         test_container();
 
-        assert(sd_rtnl_open(0, &rtnl) >= 0);
-        assert(rtnl);
+        assert_se(sd_rtnl_open(&rtnl, 0) >= 0);
+        assert_se(rtnl);
 
         if_loopback = (int) if_nametoindex("lo");
-        assert(if_loopback > 0);
+        assert_se(if_loopback > 0);
 
         test_async(if_loopback);
 
@@ -275,56 +364,31 @@ int main(void) {
 
         test_link_configure(rtnl, if_loopback);
 
-        assert(sd_rtnl_message_link_new(RTM_GETLINK, if_loopback, &m) >= 0);
-        assert(m);
-
-        assert(sd_rtnl_message_get_type(m, &type) >= 0);
-        assert(type == RTM_GETLINK);
-
-        assert(sd_rtnl_message_read(m, &type, &data) == 0);
+        assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, if_loopback) >= 0);
+        assert_se(m);
 
-        assert(sd_rtnl_call(rtnl, m, 0, &r) == 1);
-        assert(sd_rtnl_message_get_type(r, &type) >= 0);
-        assert(type == RTM_NEWLINK);
+        assert_se(sd_rtnl_message_get_type(m, &type) >= 0);
+        assert_se(type == RTM_GETLINK);
 
-        assert(sd_rtnl_message_read(m, &type, &data) == 0);
-        assert((r = sd_rtnl_message_unref(r)) == NULL);
+        assert_se(sd_rtnl_message_read(m, &type, &data) == -EPERM);
 
-        assert(sd_rtnl_call(rtnl, m, -1, &r) == -EPERM);
-        assert((m = sd_rtnl_message_unref(m)) == NULL);
-        assert((r = sd_rtnl_message_unref(r)) == NULL);
+        assert_se(sd_rtnl_call(rtnl, m, 0, &r) == 1);
+        assert_se(sd_rtnl_message_get_type(r, &type) >= 0);
+        assert_se(type == RTM_NEWLINK);
 
-        assert(sd_rtnl_message_link_new(RTM_GETLINK, if_loopback, &m) >= 0);
-        assert(m);
+        assert_se(sd_rtnl_message_read(m, &type, &data) == 0);
+        assert_se((r = sd_rtnl_message_unref(r)) == NULL);
 
-        assert(sd_rtnl_message_append_u32(m, IFLA_MTU, mtu) >= 0);
-        assert(sd_rtnl_message_read(m, &type, (void **) &mtu_reply) == 1);
-
-        assert(type == IFLA_MTU);
-        assert(*mtu_reply == 0);
-
-        assert(sd_rtnl_message_read(m, &type, &data) == 0);
-
-        assert(sd_rtnl_call(rtnl, m, -1, &r) == 1);
-        while (sd_rtnl_message_read(r, &type, &data) > 0) {
-                switch (type) {
-//                        case IFLA_MTU:
-//                                assert(*(unsigned int *) data == 65536);
-//                                break;
-//                        case IFLA_QDISC:
-//                                assert(streq((char *) data, "noqueue"));
-//                                break;
-                        case IFLA_IFNAME:
-                                assert(streq((char *) data, "lo"));
-                                break;
-                }
-        }
+        assert_se(sd_rtnl_call(rtnl, m, -1, &r) == -EPERM);
+        assert_se((m = sd_rtnl_message_unref(m)) == NULL);
+        assert_se((r = sd_rtnl_message_unref(r)) == NULL);
 
-        assert(sd_rtnl_flush(rtnl) >= 0);
+        test_link_get(rtnl, if_loopback);
 
-        assert((m = sd_rtnl_message_unref(m)) == NULL);
-        assert((r = sd_rtnl_message_unref(r)) == NULL);
-        assert((rtnl = sd_rtnl_unref(rtnl)) == NULL);
+        assert_se(sd_rtnl_flush(rtnl) >= 0);
+        assert_se((m = sd_rtnl_message_unref(m)) == NULL);
+        assert_se((r = sd_rtnl_message_unref(r)) == NULL);
+        assert_se((rtnl = sd_rtnl_unref(rtnl)) == NULL);
 
         return EXIT_SUCCESS;
 }