static void test_link_configure(sd_rtnl *rtnl, int ifindex) {
_cleanup_sd_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, 0, 0, &message) >= 0);
assert(sd_rtnl_message_append(message, IFLA_IFNAME, name) >= 0);
assert(sd_rtnl_message_append(message, IFLA_ADDRESS, ether_aton(mac)) >= 0);
assert(sd_rtnl_message_append(message, IFLA_MTU, &mtu) >= 0);
assert(sd_rtnl_message_read(message, &type, &data) >= 0);
assert(type == IFLA_IFNAME);
assert(streq(name, (char *) data));
assert(sd_rtnl_message_read(message, &type, &data) >= 0);
assert(type == IFLA_ADDRESS);
assert(streq(mac, ether_ntoa(data)));
assert(sd_rtnl_message_read(message, &type, &data) >= 0);
assert(type == IFLA_MTU);
assert(mtu == *(unsigned int *) data);
assert(sd_rtnl_call(rtnl, message, 0, NULL) == 1);
}
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;
int counter = 0;
assert(sd_rtnl_open(0, &rtnl) >= 0);
assert(sd_rtnl_message_link_new(RTM_GETLINK, ifindex, 0, 0, &m1) >= 0);
assert(sd_rtnl_message_link_new(RTM_GETLINK, ifindex, 0, 0, &m2) >= 0);
counter ++;
assert(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);
while (counter > 0) {
assert(sd_rtnl_wait(rtnl, 0) >= 0);
assert(sd_rtnl_process(rtnl, NULL) >= 0);
}
}
int rtnl_set_link_properties(sd_rtnl *rtnl, int ifindex, const char *alias,
const struct ether_addr *mac, unsigned mtu) {
_cleanup_sd_rtnl_message_unref_ sd_rtnl_message *message = NULL;
bool need_update = false;
int r;
assert(rtnl);
assert(ifindex > 0);
if (!alias && !mac && mtu == 0)
return 0;
r = sd_rtnl_message_link_new(RTM_SETLINK, ifindex, &message);
if (r < 0)
return r;
if (alias) {
r = sd_rtnl_message_append_string(message, IFLA_IFALIAS, alias);
if (r < 0)
return r;
need_update = true;
}
if (mac) {
r = sd_rtnl_message_append_ether_addr(message, IFLA_ADDRESS, mac);
if (r < 0)
return r;
need_update = true;
}
if (mtu > 0) {
r = sd_rtnl_message_append_u32(message, IFLA_MTU, mtu);
if (r < 0)
return r;
need_update = true;
}
if (need_update) {
r = sd_rtnl_call(rtnl, message, 0, NULL);
if (r < 0)
return r;
}
return 0;
}
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;
uint32_t serial;
char *ifname;
ifname = strdup("lo");
assert(ifname);
assert(sd_rtnl_open(0, &rtnl) >= 0);
assert(sd_rtnl_message_link_new(RTM_GETLINK, ifindex, 0, 0, &m) >= 0);
assert(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);
}
int rtnl_set_link_name(sd_rtnl *rtnl, int ifindex, const char *name) {
_cleanup_sd_rtnl_message_unref_ sd_rtnl_message *message = NULL;
int r;
assert(rtnl);
assert(ifindex > 0);
assert(name);
r = sd_rtnl_message_link_new(RTM_SETLINK, ifindex, &message);
if (r < 0)
return r;
r = sd_rtnl_message_append_string(message, IFLA_IFNAME, name);
if (r < 0)
return r;
r = sd_rtnl_call(rtnl, message, 0, NULL);
if (r < 0)
return r;
return 0;
}
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;
char *ifname;
ifname = strdup("lo2");
assert(ifname);
assert(sd_rtnl_open(0, &rtnl) >= 0);
assert(sd_rtnl_message_link_new(RTM_GETLINK, ifindex, 0, 0, &m) >= 0);
assert(sd_rtnl_call_async(rtnl, m, &link_handler, ifname, 0, NULL) >= 0);
assert(sd_event_default(&event) >= 0);
assert(sd_rtnl_attach_event(rtnl, event, 0) >= 0);
assert(sd_event_run(event, 0) >= 0);
assert(sd_rtnl_detach_event(rtnl) >= 0);
}
static void test_container(void) {
_cleanup_sd_rtnl_message_unref_ sd_rtnl_message *m = NULL;
uint16_t type;
void *data;
assert(sd_rtnl_message_link_new(RTM_NEWLINK, 0, 0, 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(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);
*/
}
int main(void) {
sd_rtnl *rtnl;
sd_rtnl_message *m;
sd_rtnl_message *r;
void *data;
int if_loopback;
uint16_t type;
unsigned int mtu = 0;
unsigned int *mtu_reply;
test_multiple();
test_route();
test_container();
assert(sd_rtnl_open(0, &rtnl) >= 0);
assert(rtnl);
if_loopback = (int) if_nametoindex("lo");
assert(if_loopback > 0);
test_async(if_loopback);
test_pipe(if_loopback);
test_event_loop(if_loopback);
test_link_configure(rtnl, if_loopback);
assert(sd_rtnl_message_link_new(RTM_GETLINK, if_loopback, 0, 0, &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(sd_rtnl_call(rtnl, m, 0, &r) == 1);
assert(sd_rtnl_message_get_type(r, &type) >= 0);
assert(type == RTM_NEWLINK);
assert(sd_rtnl_message_read(m, &type, &data) == 0);
assert((r = sd_rtnl_message_unref(r)) == NULL);
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(sd_rtnl_message_link_new(RTM_GETLINK, if_loopback, 0, 0, &m) >= 0);
assert(m);
assert(sd_rtnl_message_append(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(sd_rtnl_flush(rtnl) >= 0);
assert((m = sd_rtnl_message_unref(m)) == NULL);
assert((r = sd_rtnl_message_unref(r)) == NULL);
assert((rtnl = sd_rtnl_unref(rtnl)) == NULL);
return EXIT_SUCCESS;
}
