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tests: net: udp: Add IPv4 unicast TTL tests

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Make sure that setting IPv4 unicast TTL works as expected.

Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
This commit is contained in:
Jukka Rissanen 2023-11-29 17:33:24 +02:00 committed by Henrik Brix Andersen
parent b4a8e3ffff
commit 27d4c5d491
1 changed files with 49 additions and 1 deletions
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50
tests/net/socket/udp/src/main.c
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@ -2015,7 +2015,55 @@ static void test_check_ttl(int sock_c, int sock_s, int sock_p,
zassert_equal(ret, 0, "close failed");
}
ZTEST(net_socket_udp, test_31_v4_mcast_ttl)
ZTEST(net_socket_udp, test_31_v4_ttl)
{
int ret;
int client_sock;
int server_sock;
int packet_sock;
int ttl, verify;
socklen_t optlen;
struct sockaddr_in client_addr;
struct sockaddr_in server_addr;
Z_TEST_SKIP_IFNDEF(CONFIG_NET_SOCKETS_PACKET);
prepare_sock_udp_v4(MY_IPV4_ADDR, CLIENT_PORT, &client_sock, &client_addr);
prepare_sock_udp_v4(MY_IPV4_ADDR, SERVER_PORT, &server_sock, &server_addr);
packet_sock = socket(AF_PACKET, SOCK_RAW, ETH_P_ALL);
zassert_true(packet_sock >= 0, "Cannot create packet socket (%d)", -errno);
ret = bind_socket(packet_sock, lo0);
zassert_equal(ret, 0, "packet socket bind failed");
zassert_not_null(lo0->config.ip.ipv4,
"Interface %d (%p) no IPv4 configured",
net_if_get_by_iface(lo0), lo0);
ttl = 16;
net_if_ipv4_set_ttl(lo0, ttl);
verify = net_if_ipv4_get_ttl(lo0);
zassert_equal(verify, ttl, "Different TTLs (%d vs %d)", ttl, verify);
ttl = 128;
ret = setsockopt(client_sock, IPPROTO_IP, IP_TTL, &ttl, sizeof(ttl));
zassert_equal(ret, 0, "Cannot set unicast TTL (%d)", -errno);
optlen = sizeof(verify);
ret = getsockopt(client_sock, IPPROTO_IP, IP_TTL, &verify, &optlen);
zassert_equal(ret, 0, "Cannot get unicast TTL (%d)", -errno);
zassert_equal(verify, ttl, "Different unicast TTL (%d vs %d)",
ttl, verify);
test_check_ttl(client_sock, server_sock, packet_sock,
(struct sockaddr *)&client_addr, sizeof(client_addr),
(struct sockaddr *)&server_addr, sizeof(server_addr),
(struct sockaddr *)&server_addr, sizeof(server_addr),
AF_INET, ttl, 0);
}
ZTEST(net_socket_udp, test_32_v4_mcast_ttl)
{
int ret;
int client_sock;