958 static void test_pkt_loopback(struct net_pkt *pkt)  in test_pkt_loopback()  argument
970 	recv_pkt = net_pkt_rx_clone(pkt, K_NO_WAIT);  in test_pkt_loopback()
1001 	net_pkt_set_iface(recv_pkt, net_pkt_iface(pkt));  in test_pkt_loopback()
1007 static int verify_fragment(struct net_pkt *pkt)  in verify_fragment()  argument
1040 		size_t total_len = net_pkt_get_len(pkt);  in verify_fragment()
1048 		if ((total_len / 256) != pkt->buffer->data[4]) {  in verify_fragment()
1053 		if ((total_len - pkt->buffer->data[4] * 256U) !=  in verify_fragment()
1054 		    pkt->buffer->data[5]) {  in verify_fragment()
1059 		offset = pkt->buffer->data[6 * 8 + 2] * 256U +  in verify_fragment()
1060 			(pkt->buffer->data[6 * 8 + 3] & 0xfe);  in verify_fragment()
1076 		ipv6_first_frag[6 * 8 + 4] = pkt->buffer->data[6 * 8 + 4];  in verify_fragment()
1077 		ipv6_first_frag[6 * 8 + 5] = pkt->buffer->data[6 * 8 + 5];  in verify_fragment()
1078 		ipv6_first_frag[6 * 8 + 6] = pkt->buffer->data[6 * 8 + 6];  in verify_fragment()
1079 		ipv6_first_frag[6 * 8 + 7] = pkt->buffer->data[6 * 8 + 7];  in verify_fragment()
1081 		if (memcmp(pkt->buffer->data, ipv6_first_frag, 7 * 8) != 0) {  in verify_fragment()
1082 			net_hexdump("received", pkt->buffer->data, 7 * 8);  in verify_fragment()
1092 		size_t total_len = net_pkt_get_len(pkt);  in verify_fragment()
1100 		if ((total_len / 256) != pkt->buffer->data[4]) {  in verify_fragment()
1105 		if ((total_len - pkt->buffer->data[4] * 256U) !=  in verify_fragment()
1106 		    pkt->buffer->data[5]) {  in verify_fragment()
1111 		offset = pkt->buffer->data[6 * 8 + 2] * 256U +  in verify_fragment()
1112 			(pkt->buffer->data[6 * 8 + 3] & 0xfe);  in verify_fragment()
1121 		if ((pkt->buffer->data[6 * 8 + 3] & 0x01) != 0U) {  in verify_fragment()
1129 		ipv6_second_frag[6 * 8 + 2] = pkt->buffer->data[6 * 8 + 2];  in verify_fragment()
1130 		ipv6_second_frag[6 * 8 + 3] = pkt->buffer->data[6 * 8 + 3];  in verify_fragment()
1133 		ipv6_second_frag[6 * 8 + 4] = pkt->buffer->data[6 * 8 + 4];  in verify_fragment()
1134 		ipv6_second_frag[6 * 8 + 5] = pkt->buffer->data[6 * 8 + 5];  in verify_fragment()
1135 		ipv6_second_frag[6 * 8 + 6] = pkt->buffer->data[6 * 8 + 6];  in verify_fragment()
1136 		ipv6_second_frag[6 * 8 + 7] = pkt->buffer->data[6 * 8 + 7];  in verify_fragment()
1138 		if (memcmp(pkt->buffer->data, ipv6_second_frag, 7 * 8) != 0) {  in verify_fragment()
1139 			net_hexdump("received 2", pkt->buffer->data, 7 * 8);  in verify_fragment()
1158 	net_pkt_cursor_init(pkt);  in verify_fragment()
1167 		recv_ext_len = net_pkt_ipv6_ext_len(pkt);  in verify_fragment()
1175 		recv_payload_len = net_pkt_get_len(pkt) - 40 - 1032 - 8;  in verify_fragment()
1183 		if (net_pkt_skip(pkt, 40 + 1032 + 2) ||  in verify_fragment()
1184 		    net_pkt_read_be16(pkt, &frag_offset)) {  in verify_fragment()
1207 		recv_ext_len = net_pkt_ipv6_ext_len(pkt);  in verify_fragment()
1215 		recv_payload_len = net_pkt_get_len(pkt) - 40 - 1032 - 8;  in verify_fragment()
1223 		if (net_pkt_skip(pkt, 40 + 1032 + 2) ||  in verify_fragment()
1224 		    net_pkt_read_be16(pkt, &frag_offset)) {  in verify_fragment()
1247 		recv_ext_len = net_pkt_ipv6_ext_len(pkt);  in verify_fragment()
1255 		recv_payload_len = net_pkt_get_len(pkt) - 40 - 1032 - 8;  in verify_fragment()
1263 		if (net_pkt_skip(pkt, 40 + 1032 + 2) ||  in verify_fragment()
1264 		    net_pkt_read_be16(pkt, &frag_offset)) {  in verify_fragment()
1285 	net_pkt_cursor_init(pkt);  in verify_fragment()
1294 		recv_ext_len = net_pkt_ipv6_ext_len(pkt);  in verify_fragment()
1302 		recv_payload_len = net_pkt_get_len(pkt) - 40 - 8;  in verify_fragment()
1310 		if (pkt->buffer->data[6] != NET_IPV6_NEXTHDR_FRAG) {  in verify_fragment()
1312 				pkt->buffer->data[6]);  in verify_fragment()
1316 		if (net_pkt_skip(pkt, 40 + 2) ||  in verify_fragment()
1317 		    net_pkt_read_be16(pkt, &frag_offset)) {  in verify_fragment()
1340 		recv_ext_len = net_pkt_ipv6_ext_len(pkt);  in verify_fragment()
1347 		if (pkt->buffer->data[6] != NET_IPV6_NEXTHDR_FRAG) {  in verify_fragment()
1349 				pkt->buffer->data[6]);  in verify_fragment()
1354 		recv_payload_len = net_pkt_get_len(pkt) - 40 - 8;  in verify_fragment()
1362 		if (net_pkt_skip(pkt, 40 + 2) ||  in verify_fragment()
1363 		    net_pkt_read_be16(pkt, &frag_offset)) {  in verify_fragment()
1384 	net_pkt_cursor_init(pkt);  in verify_fragment()
1393 		recv_ext_len = net_pkt_ipv6_ext_len(pkt);  in verify_fragment()
1401 		recv_payload_len = net_pkt_get_len(pkt) - 40 - 8;  in verify_fragment()
1409 		if (pkt->buffer->data[6] != NET_IPV6_NEXTHDR_FRAG) {  in verify_fragment()
1411 				pkt->buffer->data[6]);  in verify_fragment()
1415 		if (net_pkt_skip(pkt, 40 + 2) ||  in verify_fragment()
1416 		    net_pkt_read_be16(pkt, &frag_offset)) {  in verify_fragment()
1439 		recv_ext_len = net_pkt_ipv6_ext_len(pkt);  in verify_fragment()
1446 		if (pkt->buffer->data[6] != NET_IPV6_NEXTHDR_FRAG) {  in verify_fragment()
1448 				pkt->buffer->data[6]);  in verify_fragment()
1453 		recv_payload_len = net_pkt_get_len(pkt) - 40 - 8;  in verify_fragment()
1461 		if (net_pkt_skip(pkt, 40 + 2) ||  in verify_fragment()
1462 		    net_pkt_read_be16(pkt, &frag_offset)) {  in verify_fragment()
1478 	test_pkt_loopback(pkt);  in verify_fragment()
1484 					  struct net_pkt *pkt,  in udp_data_received()  argument
1489 	const struct net_ipv6_hdr *hdr = NET_IPV6_HDR(pkt);  in udp_data_received()
1497 	NET_DBG("Data %p received", pkt);  in udp_data_received()
1501 	zassert_equal(net_pkt_get_len(pkt), expected_pkt_length, "Invalid packet length");  in udp_data_received()
1521 	net_pkt_cursor_init(pkt);  in udp_data_received()
1522 	net_pkt_read(pkt, verify_buf, NET_IPV6H_LEN);  in udp_data_received()
1523 	net_pkt_read(pkt, verify_buf, NET_UDPH_LEN);  in udp_data_received()
1530 	zassert_equal(net_calc_verify_chksum_udp(pkt), 0,  in udp_data_received()
1535 	while (i < net_pkt_get_len(pkt)) {  in udp_data_received()
1537 		net_pkt_read(pkt, verify_buf, expected_data_len);  in udp_data_received()
1545 	net_pkt_unref(pkt);  in udp_data_received()
1552 static int sender_iface(const struct device *dev, struct net_pkt *pkt)  in sender_iface()  argument
1554 	if (!pkt->buffer) {  in sender_iface()
1561 		if (verify_fragment(pkt) < 0) {  in sender_iface()
1693 	struct net_pkt *pkt;  in ZTEST()  local
1696 	pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_udp), AF_INET6,  in ZTEST()
1698 	zassert_not_null(pkt, "packet");  in ZTEST()
1700 	net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr));  in ZTEST()
1701 	net_pkt_set_ipv6_ext_len(pkt, sizeof(ipv6_udp) -  in ZTEST()
1705 	ret = net_pkt_write(pkt, ipv6_udp, sizeof(ipv6_udp));  in ZTEST()
1709 	ret = net_ipv6_find_last_ext_hdr(pkt, &next_hdr_pos, &last_hdr_pos);  in ZTEST()
1716 	zassert_equal(NET_IPV6_HDR(pkt)->nexthdr, 0x11, "Invalid next header");  in ZTEST()
1717 	zassert_equal(pkt->buffer->data[next_hdr_pos], 0x11, "Invalid next "  in ZTEST()
1720 	net_pkt_unref(pkt);  in ZTEST()
1727 	struct net_pkt *pkt;  in ZTEST()  local
1730 	pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_hbho) +  in ZTEST()
1733 	zassert_not_null(pkt, "packet");  in ZTEST()
1735 	net_pkt_set_family(pkt, AF_INET6);  in ZTEST()
1736 	net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr));  in ZTEST()
1737 	net_pkt_set_ipv6_ext_len(pkt, sizeof(ipv6_hbho) -  in ZTEST()
1740 	ret = net_pkt_write(pkt, ipv6_hbho, sizeof(ipv6_hbho));  in ZTEST()
1743 	ret = net_ipv6_find_last_ext_hdr(pkt, &next_hdr_pos, &last_hdr_pos);  in ZTEST()
1751 	zassert_equal(NET_IPV6_HDR(pkt)->nexthdr, 0, "Invalid next header");  in ZTEST()
1752 	zassert_equal(pkt->buffer->data[next_hdr_pos], 0x11, "Invalid next "  in ZTEST()
1755 	net_pkt_unref(pkt);  in ZTEST()
1762 	struct net_pkt *pkt;  in ZTEST()  local
1767 	pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_hbho_1),  in ZTEST()
1769 	zassert_not_null(pkt, "packet");  in ZTEST()
1771 	net_pkt_set_family(pkt, AF_INET6);  in ZTEST()
1772 	net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr));  in ZTEST()
1775 	ret = net_pkt_write(pkt, ipv6_hbho_1, sizeof(ipv6_hbho_1));  in ZTEST()
1778 	net_pkt_set_overwrite(pkt, true);  in ZTEST()
1780 	ret = net_ipv6_find_last_ext_hdr(pkt, &next_hdr_pos, &last_hdr_pos);  in ZTEST()
1786 	net_pkt_cursor_init(pkt);  in ZTEST()
1787 	net_pkt_skip(pkt, next_hdr_pos);  in ZTEST()
1788 	net_pkt_read_u8(pkt, &next_hdr);  in ZTEST()
1792 	net_pkt_cursor_init(pkt);  in ZTEST()
1793 	net_pkt_skip(pkt, last_hdr_pos);  in ZTEST()
1794 	net_pkt_read_u8(pkt, &last_hdr);  in ZTEST()
1798 	net_pkt_unref(pkt);  in ZTEST()
1805 	struct net_pkt *pkt;  in ZTEST()  local
1810 	pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_hbho_2),  in ZTEST()
1812 	zassert_not_null(pkt, "packet");  in ZTEST()
1814 	net_pkt_set_family(pkt, AF_INET6);  in ZTEST()
1815 	net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr));  in ZTEST()
1818 	ret = net_pkt_write(pkt, ipv6_hbho_2, sizeof(ipv6_hbho_2));  in ZTEST()
1821 	net_pkt_set_overwrite(pkt, true);  in ZTEST()
1823 	ret = net_ipv6_find_last_ext_hdr(pkt, &next_hdr_pos, &last_hdr_pos);  in ZTEST()
1829 	net_pkt_cursor_init(pkt);  in ZTEST()
1830 	net_pkt_skip(pkt, next_hdr_pos);  in ZTEST()
1831 	net_pkt_read_u8(pkt, &next_hdr);  in ZTEST()
1835 	net_pkt_cursor_init(pkt);  in ZTEST()
1836 	net_pkt_skip(pkt, last_hdr_pos);  in ZTEST()
1837 	net_pkt_read_u8(pkt, &last_hdr);  in ZTEST()
1841 	net_pkt_unref(pkt);  in ZTEST()
1848 	struct net_pkt *pkt;  in ZTEST()  local
1853 	pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_hbho_3),  in ZTEST()
1855 	zassert_not_null(pkt, "packet");  in ZTEST()
1857 	net_pkt_set_family(pkt, AF_INET6);  in ZTEST()
1858 	net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr));  in ZTEST()
1861 	ret = net_pkt_write(pkt, ipv6_hbho_3, sizeof(ipv6_hbho_3));  in ZTEST()
1864 	net_pkt_set_overwrite(pkt, true);  in ZTEST()
1866 	ret = net_ipv6_find_last_ext_hdr(pkt, &next_hdr_pos, &last_hdr_pos);  in ZTEST()
1872 	net_pkt_cursor_init(pkt);  in ZTEST()
1873 	net_pkt_skip(pkt, next_hdr_pos);  in ZTEST()
1874 	net_pkt_read_u8(pkt, &next_hdr);  in ZTEST()
1878 	net_pkt_cursor_init(pkt);  in ZTEST()
1879 	net_pkt_skip(pkt, last_hdr_pos);  in ZTEST()
1880 	net_pkt_read_u8(pkt, &last_hdr);  in ZTEST()
1884 	net_pkt_unref(pkt);  in ZTEST()
1891 	struct net_pkt *pkt;  in ZTEST()  local
1894 	pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_hbho_frag),  in ZTEST()
1896 	zassert_not_null(pkt, "packet");  in ZTEST()
1898 	net_pkt_set_family(pkt, AF_INET6);  in ZTEST()
1899 	net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr));  in ZTEST()
1902 	ret = net_pkt_write(pkt, ipv6_hbho_frag, sizeof(ipv6_hbho_frag));  in ZTEST()
1905 	net_pkt_set_overwrite(pkt, true);  in ZTEST()
1907 	ret = net_ipv6_find_last_ext_hdr(pkt, &next_hdr_pos, &last_hdr_pos);  in ZTEST()
1915 	zassert_equal(NET_IPV6_HDR(pkt)->nexthdr, 0, "Invalid next header");  in ZTEST()
1916 	zassert_equal(pkt->buffer->data[next_hdr_pos], 0x11,  in ZTEST()
1919 	net_pkt_unref(pkt);  in ZTEST()
1926 	struct net_pkt *pkt;  in ZTEST()  local
1931 	pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_hbho_frag_1),  in ZTEST()
1933 	zassert_not_null(pkt, "packet");  in ZTEST()
1935 	net_pkt_set_family(pkt, AF_INET6);  in ZTEST()
1936 	net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr));  in ZTEST()
1939 	ret = net_pkt_write(pkt, ipv6_hbho_frag_1,  in ZTEST()
1943 	net_pkt_set_overwrite(pkt, true);  in ZTEST()
1945 	ret = net_ipv6_find_last_ext_hdr(pkt, &next_hdr_pos, &last_hdr_pos);  in ZTEST()
1951 	net_pkt_cursor_init(pkt);  in ZTEST()
1952 	net_pkt_skip(pkt, next_hdr_pos);  in ZTEST()
1953 	net_pkt_read_u8(pkt, &next_hdr);  in ZTEST()
1957 	net_pkt_cursor_init(pkt);  in ZTEST()
1958 	net_pkt_skip(pkt, last_hdr_pos);  in ZTEST()
1959 	net_pkt_read_u8(pkt, &last_hdr);  in ZTEST()
1963 	net_pkt_unref(pkt);  in ZTEST()
1972 	struct net_pkt *pkt;  in ZTEST()  local
1979 	pkt = net_pkt_alloc_with_buffer(iface1,  in ZTEST()
1982 	zassert_not_null(pkt, "packet");  in ZTEST()
1984 	net_pkt_set_iface(pkt, iface1);  in ZTEST()
1985 	net_pkt_set_family(pkt, AF_INET6);  in ZTEST()
1986 	net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr));  in ZTEST()
1987 	net_pkt_set_ipv6_ext_len(pkt, 8); /* hbho */  in ZTEST()
1990 	ret = net_pkt_write(pkt, ipv6_hbho, sizeof(ipv6_hbho));  in ZTEST()
1995 		ret = net_pkt_write(pkt, data, data_len);  in ZTEST()
2004 	total_len = net_pkt_get_len(pkt) - sizeof(struct net_ipv6_hdr);  in ZTEST()
2007 		total_len, net_pkt_ipv6_ext_len(pkt), pkt_data_len);  in ZTEST()
2009 	zassert_equal(total_len - net_pkt_ipv6_ext_len(pkt) - 8, pkt_data_len,  in ZTEST()
2012 	NET_IPV6_HDR(pkt)->len = htons(total_len);  in ZTEST()
2014 	net_pkt_cursor_init(pkt);  in ZTEST()
2015 	net_pkt_set_overwrite(pkt, true);  in ZTEST()
2016 	net_pkt_skip(pkt, net_pkt_ip_hdr_len(pkt) + net_pkt_ipv6_ext_len(pkt));  in ZTEST()
2018 	net_udp_finalize(pkt, false);  in ZTEST()
2023 	ret = net_send_data(pkt);  in ZTEST()
2037 	struct net_pkt *pkt;  in ZTEST()  local
2045 	pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_large_hbho),  in ZTEST()
2047 	zassert_not_null(pkt, "packet");  in ZTEST()
2049 	net_pkt_set_family(pkt, AF_INET6);  in ZTEST()
2050 	net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr));  in ZTEST()
2051 	net_pkt_set_ipv6_ext_len(pkt, 1032); /* hbho */  in ZTEST()
2053 	ret = net_pkt_write(pkt, ipv6_large_hbho, sizeof(ipv6_large_hbho));  in ZTEST()
2056 	net_pkt_set_overwrite(pkt, true);  in ZTEST()
2058 	total_len = net_pkt_get_len(pkt) - sizeof(struct net_ipv6_hdr);  in ZTEST()
2061 		total_len, net_pkt_ipv6_ext_len(pkt), pkt_data_len);  in ZTEST()
2066 	ret = net_send_data(pkt);  in ZTEST()
2080 	struct net_pkt *pkt;  in ZTEST()  local
2090 	pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_frag_wo_hbho),  in ZTEST()
2092 	zassert_not_null(pkt, "packet");  in ZTEST()
2094 	net_pkt_set_family(pkt, AF_INET6);  in ZTEST()
2095 	net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr));  in ZTEST()
2096 	net_pkt_set_ipv6_ext_len(pkt, NET_IPV6_FRAGH_LEN); /* without hbho*/  in ZTEST()
2098 	ret = net_pkt_write(pkt, ipv6_frag_wo_hbho,  in ZTEST()
2102 	net_pkt_set_overwrite(pkt, true);  in ZTEST()
2104 	total_len = net_pkt_get_len(pkt) - sizeof(struct net_ipv6_hdr) -  in ZTEST()
2108 		total_len, net_pkt_ipv6_ext_len(pkt), pkt_data_len);  in ZTEST()
2113 	ret = net_send_data(pkt);  in ZTEST()
2131 	struct net_pkt *pkt;  in ZTEST()  local
2139 	pkt = net_pkt_alloc_with_buffer(iface1,  in ZTEST()
2142 	zassert_not_null(pkt, "packet");  in ZTEST()
2144 	net_pkt_set_iface(pkt, iface1);  in ZTEST()
2145 	net_pkt_set_family(pkt, AF_INET6);  in ZTEST()
2146 	net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr));  in ZTEST()
2147 	net_pkt_set_ipv6_ext_len(pkt, 0);  in ZTEST()
2150 	ret = net_pkt_write(pkt, ipv6_udp, sizeof(ipv6_udp));  in ZTEST()
2155 		ret = net_pkt_write(pkt, data, data_len);  in ZTEST()
2164 	total_len = net_pkt_get_len(pkt) - sizeof(struct net_ipv6_hdr);  in ZTEST()
2167 		total_len, net_pkt_ipv6_ext_len(pkt), pkt_data_len);  in ZTEST()
2169 	zassert_equal(total_len - net_pkt_ipv6_ext_len(pkt) - 8, pkt_data_len,  in ZTEST()
2172 	NET_IPV6_HDR(pkt)->len = htons(total_len);  in ZTEST()
2174 	net_pkt_cursor_init(pkt);  in ZTEST()
2175 	net_pkt_set_overwrite(pkt, true);  in ZTEST()
2176 	net_pkt_skip(pkt, net_pkt_ip_hdr_len(pkt) + net_pkt_ipv6_ext_len(pkt));  in ZTEST()
2178 	net_udp_finalize(pkt, false);  in ZTEST()
2183 	ret = net_send_data(pkt);  in ZTEST()
2221 				  struct net_pkt *pkt,  in handle_ipv6_echo_reply()  argument
2226 	const struct net_ipv6_hdr *hdr = NET_IPV6_HDR(pkt);  in handle_ipv6_echo_reply()
2238 	NET_DBG("Data %p received", pkt);  in handle_ipv6_echo_reply()
2240 	zassert_equal(net_pkt_get_len(pkt), expected_pkt_length, "Invalid packet length");  in handle_ipv6_echo_reply()
2259 	net_pkt_cursor_init(pkt);  in handle_ipv6_echo_reply()
2260 	net_pkt_read(pkt, verify_buf, NET_IPV6H_LEN);  in handle_ipv6_echo_reply()
2261 	net_pkt_read(pkt, verify_buf, ECHO_REPLY_H_LEN);  in handle_ipv6_echo_reply()
2266 	zassert_equal(net_calc_chksum_icmpv6(pkt), 0,  in handle_ipv6_echo_reply()
2275 	while (i < net_pkt_get_len(pkt)) {  in handle_ipv6_echo_reply()
2278 		net_pkt_read_u8(pkt, &data);  in handle_ipv6_echo_reply()