int main(void) {
sd_rtnl *rtnl;
sd_rtnl_message *m;
sd_rtnl_message *r;
char *string_data;
int if_loopback;
uint16_t type;
test_match();
test_multiple();
test_route();
test_container();
assert_se(sd_rtnl_open(&rtnl, 0) >= 0);
assert_se(rtnl);
if_loopback = (int) if_nametoindex("lo");
assert_se(if_loopback > 0);
test_async(if_loopback);
test_pipe(if_loopback);
test_event_loop(if_loopback);
test_link_configure(rtnl, if_loopback);
test_get_addresses(rtnl);
assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, if_loopback) >= 0);
assert_se(m);
assert_se(sd_rtnl_message_get_type(m, &type) >= 0);
assert_se(type == RTM_GETLINK);
assert_se(sd_rtnl_message_read_string(m, IFLA_IFNAME, &string_data) == -EPERM);
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_se((r = sd_rtnl_message_unref(r)) == NULL);
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);
test_link_get(rtnl, if_loopback);
test_address_get(rtnl, if_loopback);
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;
}
static void test_link_get(sd_rtnl *rtnl, int ifindex) {
sd_rtnl_message *m;
sd_rtnl_message *r;
unsigned int mtu = 1500;
const char *str_data;
uint8_t u8_data;
uint32_t u32_data;
struct ether_addr eth_data;
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);
assert_se(sd_rtnl_message_read_string(r, IFLA_IFNAME, &str_data) == 0);
assert_se(sd_rtnl_message_read_u8(r, IFLA_CARRIER, &u8_data) == 0);
assert_se(sd_rtnl_message_read_u8(r, IFLA_OPERSTATE, &u8_data) == 0);
assert_se(sd_rtnl_message_read_u8(r, IFLA_LINKMODE, &u8_data) == 0);
assert_se(sd_rtnl_message_read_u32(r, IFLA_MTU, &u32_data) == 0);
assert_se(sd_rtnl_message_read_u32(r, IFLA_GROUP, &u32_data) == 0);
assert_se(sd_rtnl_message_read_u32(r, IFLA_TXQLEN, &u32_data) == 0);
assert_se(sd_rtnl_message_read_u32(r, IFLA_NUM_TX_QUEUES, &u32_data) == 0);
assert_se(sd_rtnl_message_read_u32(r, IFLA_NUM_RX_QUEUES, &u32_data) == 0);
assert_se(sd_rtnl_message_read_ether_addr(r, IFLA_ADDRESS, ð_data) == 0);
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);
}
static void test_address_get(sd_rtnl *rtnl, int ifindex) {
sd_rtnl_message *m;
sd_rtnl_message *r;
struct in_addr in_data;
assert_se(sd_rtnl_message_new_addr(rtnl, &m, RTM_GETADDR, ifindex, AF_INET) >= 0);
assert_se(m);
assert_se(sd_rtnl_call(rtnl, m, -1, &r) == 1);
assert_se(sd_rtnl_message_read_in_addr(r, IFA_LOCAL, &in_data) == 0);
assert_se(sd_rtnl_message_read_in_addr(r, IFA_ADDRESS, &in_data) == 0);
assert_se(sd_rtnl_message_read_in_addr(r, IFA_LABEL, &in_data) == 0);
assert_se(sd_rtnl_message_read_in_addr(r, IFA_CACHEINFO, &in_data) == 0);
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);
}
static void test_route(void) {
_cleanup_rtnl_message_unref_ sd_rtnl_message *req;
struct in_addr addr;
uint32_t index = 2;
uint16_t type;
void *data;
uint32_t u32_data;
int r;
struct rtmsg *rtm;
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;
}
addr.s_addr = htonl(INADDR_LOOPBACK);
r = sd_rtnl_message_append_in_addr(req, RTA_GATEWAY, &addr);
if (r < 0) {
log_error("Could not append RTA_GATEWAY attribute: %s", strerror(-r));
return;
}
r = sd_rtnl_message_append_u32(req, RTA_OIF, index);
if (r < 0) {
log_error("Could not append RTA_OIF attribute: %s", strerror(-r));
return;
}
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_se(sd_rtnl_message_read(req, &type, &data) > 0);
assert_se(type == RTA_OIF);
assert_se(*(uint32_t *) data == index);
rtm = NLMSG_DATA(req->hdr);
r = rtnl_message_parse(req,
&req->rta_offset_tb,
&req->rta_tb_size,
RTA_MAX,
RTM_RTA(rtm),
RTM_PAYLOAD(req->hdr));
assert_se(sd_rtnl_message_read_u32(req, RTA_GATEWAY, &u32_data) == 0);
assert_se(sd_rtnl_message_read_u32(req, RTA_OIF, &u32_data) == 0);
assert_se((req = sd_rtnl_message_unref(req)) == NULL);
}
sd_rtnl_message *sd_rtnl_message_unref(sd_rtnl_message *m) {
if (m && REFCNT_DEC(m->n_ref) <= 0) {
unsigned i;
free(m->hdr);
for (i = 0; i <= m->n_containers; i++)
free(m->rta_offset_tb[i]);
sd_rtnl_message_unref(m->next);
free(m);
}
return NULL;
}
static void test_route(void) {
_cleanup_rtnl_message_unref_ sd_rtnl_message *req;
struct in_addr addr, addr_data;
uint32_t index = 2, u32_data;
int r;
r = sd_rtnl_message_new_route(NULL, &req, RTM_NEWROUTE, AF_INET, RTPROT_STATIC);
if (r < 0) {
log_error_errno(r, "Could not create RTM_NEWROUTE message: %m");
return;
}
addr.s_addr = htonl(INADDR_LOOPBACK);
r = sd_rtnl_message_append_in_addr(req, RTA_GATEWAY, &addr);
if (r < 0) {
log_error_errno(r, "Could not append RTA_GATEWAY attribute: %m");
return;
}
r = sd_rtnl_message_append_u32(req, RTA_OIF, index);
if (r < 0) {
log_error_errno(r, "Could not append RTA_OIF attribute: %m");
return;
}
assert_se(sd_rtnl_message_rewind(req) >= 0);
assert_se(sd_rtnl_message_read_in_addr(req, RTA_GATEWAY, &addr_data) >= 0);
assert_se(addr_data.s_addr == addr.s_addr);
assert_se(sd_rtnl_message_read_u32(req, RTA_OIF, &u32_data) >= 0);
assert_se(u32_data == index);
assert_se((req = sd_rtnl_message_unref(req)) == NULL);
}
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;
char *str_data;
uint16_t type;
uint8_t u8_data;
uint32_t u32_data;
struct ether_addr eth_data;
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_message_read_string(r, IFLA_IFNAME, &str_data) == 0);
assert_se(sd_rtnl_message_read_u8(r, IFLA_CARRIER, &u8_data) == 0);
assert_se(sd_rtnl_message_read_u8(r, IFLA_OPERSTATE, &u8_data) == 0);
assert_se(sd_rtnl_message_read_u8(r, IFLA_LINKMODE, &u8_data) == 0);
assert_se(sd_rtnl_message_read_u32(r, IFLA_MTU, &u32_data) == 0);
assert_se(sd_rtnl_message_read_u32(r, IFLA_GROUP, &u32_data) == 0);
assert_se(sd_rtnl_message_read_u32(r, IFLA_TXQLEN, &u32_data) == 0);
assert_se(sd_rtnl_message_read_u32(r, IFLA_NUM_TX_QUEUES, &u32_data) == 0);
assert_se(sd_rtnl_message_read_u32(r, IFLA_NUM_RX_QUEUES, &u32_data) == 0);
assert_se(sd_rtnl_message_read_ether_addr(r, IFLA_ADDRESS, ð_data) == 0);
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);
}
static int test_pppoe_server(sd_event *e) {
sd_rtnl *rtnl;
sd_rtnl_message *m;
pid_t pid;
int r, client_ifindex, server_ifindex;
r = unshare(CLONE_NEWNET);
if (r < 0 && errno == EPERM)
return EXIT_TEST_SKIP;
assert_se(r >= 0);
assert_se(sd_rtnl_open(&rtnl, 0) >= 0);
assert_se(sd_rtnl_attach_event(rtnl, e, 0) >= 0);
assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_NEWLINK, 0) >= 0);
assert_se(sd_rtnl_message_append_string(m, IFLA_IFNAME, "pppoe-server") >= 0);
assert_se(sd_rtnl_message_open_container(m, IFLA_LINKINFO) >= 0);
assert_se(sd_rtnl_message_open_container_union(m, IFLA_INFO_DATA, "veth") >= 0);
assert_se(sd_rtnl_message_open_container(m, VETH_INFO_PEER) >= 0);
assert_se(sd_rtnl_message_append_string(m, IFLA_IFNAME, "pppoe-client") >= 0);
assert_se(sd_rtnl_message_close_container(m) >= 0);
assert_se(sd_rtnl_message_close_container(m) >= 0);
assert_se(sd_rtnl_message_close_container(m) >= 0);
assert_se(sd_rtnl_call(rtnl, m, 0, NULL) >= 0);
client_ifindex = (int) if_nametoindex("pppoe-client");
assert_se(client_ifindex > 0);
server_ifindex = (int) if_nametoindex("pppoe-server");
assert_se(server_ifindex > 0);
m = sd_rtnl_message_unref(m);
assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_SETLINK, client_ifindex) >= 0);
assert_se(sd_rtnl_message_link_set_flags(m, IFF_UP, IFF_UP) >= 0);
assert_se(sd_rtnl_call(rtnl, m, 0, NULL) >= 0);
m = sd_rtnl_message_unref(m);
assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_SETLINK, server_ifindex) >= 0);
assert_se(sd_rtnl_message_link_set_flags(m, IFF_UP, IFF_UP) >= 0);
assert_se(sd_rtnl_call(rtnl, m, 0, NULL) >= 0);
pid = fork();
assert_se(pid >= 0);
if (pid == 0) {
/* let the client send some discover messages before the server is started */
sleep(2);
/* TODO: manage pppoe-server-options */
execlp("pppoe-server", "pppoe-server", "-F",
"-I", "pppoe-server",
"-C", "Test-AC",
"-S", "Service-Default",
"-S", "Service-First-Auxiliary",
"-S", "Service-Second-Auxiliary",
NULL);
assert_not_reached("failed to execute pppoe-server. not installed?");
}
client_run("pppoe-client", e);
assert_se(kill(pid, SIGTERM) >= 0);
assert_se(wait_for_terminate(pid, NULL) >= 0);
assert_se(!sd_rtnl_message_unref(m));
assert_se(!sd_rtnl_unref(rtnl));
return EXIT_SUCCESS;
}
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;
}
static int test_tunnel_configure(sd_rtnl *rtnl) {
int r;
sd_rtnl_message *m, *n;
struct in_addr local, remote;
/* skip test if module cannot be loaded */
r = load_module("ipip");
if(r < 0)
return EXIT_TEST_SKIP;
if(getuid() != 0)
return EXIT_TEST_SKIP;
/* IPIP tunnel */
assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_NEWLINK, 0) >= 0);
assert_se(m);
assert_se(sd_rtnl_message_append_string(m, IFLA_IFNAME, "ipip-tunnel") >= 0);
assert_se(sd_rtnl_message_append_u32(m, IFLA_MTU, 1234)>= 0);
assert_se(sd_rtnl_message_open_container(m, IFLA_LINKINFO) >= 0);
assert_se(sd_rtnl_message_open_container_union(m, IFLA_INFO_DATA, "ipip") >= 0);
inet_pton(AF_INET, "192.168.21.1", &local.s_addr);
assert_se(sd_rtnl_message_append_u32(m, IFLA_IPTUN_LOCAL, local.s_addr) >= 0);
inet_pton(AF_INET, "192.168.21.2", &remote.s_addr);
assert_se(sd_rtnl_message_append_u32(m, IFLA_IPTUN_REMOTE, remote.s_addr) >= 0);
assert_se(sd_rtnl_message_close_container(m) >= 0);
assert_se(sd_rtnl_message_close_container(m) >= 0);
assert_se(sd_rtnl_call(rtnl, m, -1, 0) == 1);
assert_se((m = sd_rtnl_message_unref(m)) == NULL);
r = load_module("sit");
if(r < 0)
return EXIT_TEST_SKIP;
/* sit */
assert_se(sd_rtnl_message_new_link(rtnl, &n, RTM_NEWLINK, 0) >= 0);
assert_se(n);
assert_se(sd_rtnl_message_append_string(n, IFLA_IFNAME, "sit-tunnel") >= 0);
assert_se(sd_rtnl_message_append_u32(n, IFLA_MTU, 1234)>= 0);
assert_se(sd_rtnl_message_open_container(n, IFLA_LINKINFO) >= 0);
assert_se(sd_rtnl_message_open_container_union(n, IFLA_INFO_DATA, "sit") >= 0);
assert_se(sd_rtnl_message_append_u8(n, IFLA_IPTUN_PROTO, IPPROTO_IPIP) >= 0);
inet_pton(AF_INET, "192.168.21.3", &local.s_addr);
assert_se(sd_rtnl_message_append_u32(n, IFLA_IPTUN_LOCAL, local.s_addr) >= 0);
inet_pton(AF_INET, "192.168.21.4", &remote.s_addr);
assert_se(sd_rtnl_message_append_u32(n, IFLA_IPTUN_REMOTE, remote.s_addr) >= 0);
assert_se(sd_rtnl_message_close_container(n) >= 0);
assert_se(sd_rtnl_message_close_container(n) >= 0);
assert_se(sd_rtnl_call(rtnl, n, -1, 0) == 1);
assert_se((m = sd_rtnl_message_unref(n)) == NULL);
return EXIT_SUCCESS;
}
