10  * SPDX-License-Identifier: Apache-2.0
20  * @version 1.0.0
40 #define NET_VLAN_TAG_UNSPEC 0x0fff
44 #define PF_UNSPEC       0          /**< Unspecified protocol family.  */
50 #define PF_LOCAL        6          /**< Inter-process communication   */
51 #define PF_UNIX         PF_LOCAL   /**< Inter-process communication   */
60 #define AF_LOCAL       PF_LOCAL    /**< Inter-process communication   */
61 #define AF_UNIX        PF_UNIX     /**< Inter-process communication   */
65 	IPPROTO_IP = 0,            /**< IP protocol (pseudo-val for setsockopt() */
94 /** @brief Convert 16-bit value from network to host byte order.
102 /** @brief Convert 32-bit value from network to host byte order.
110 /** @brief Convert 64-bit value from network to host byte order.
118 /** @brief Convert 16-bit value from host to network byte order.
126 /** @brief Convert 32-bit value from host to network byte order.
134 /** @brief Convert 64-bit value from host to network byte order.
199 	uint16_t    sll_protocol; /**< Physical-layer protocol            */
204 	uint8_t     sll_addr[8];  /**< Physical-layer address, big endian */
227 	uint16_t    sll_protocol; /**< Physical-layer protocol            */
232 	uint8_t     *sll_addr;    /**< Physical-layer address, big endian */
271 	int       cmsg_type;   /**< Protocol-specific type */
296 	((msghdr)->msg_controllen >= sizeof(struct cmsghdr) ?	\
297 	 (struct cmsghdr *)((msghdr)->msg_control) : NULL)
307 	 (((uint8_t *)(cmsg) + ALIGN_H((cmsg)->cmsg_len) +		 \
309 	   (uint8_t *)((msghdr)->msg_control) + (msghdr)->msg_controllen) ? \
312 			     ALIGN_H((cmsg)->cmsg_len))))
346 #define PACKET_HOST         0     /* To us            */
411 	char data[NET_SOCKADDR_MAX_SIZE - sizeof(sa_family_t)];
419 	char data[NET_SOCKADDR_PTR_MAX_SIZE - sizeof(sa_family_t)];
425 	char data[NET_SOCKADDR_MAX_SIZE - sizeof(sa_family_t)];
431 	char        sun_path[NET_SOCKADDR_MAX_SIZE - sizeof(sa_family_t)];
451 #define IN6ADDR_ANY_INIT { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, \
452 				0, 0, 0, 0, 0, 0, 0 } } }
455 #define IN6ADDR_LOOPBACK_INIT { { { 0, 0, 0, 0, 0, 0, 0, \
456 				0, 0, 0, 0, 0, 0, 0, 0, 1 } } }
459 #define INADDR_ANY 0
462 #define INADDR_BROADCAST 0xffffffff
468 #define INADDR_LOOPBACK_INIT  { { { 127, 0, 0, 1 } } }
499 	NET_IPV4_MTU = 576,
505 	NET_PRIORITY_BE = 0, /**< Best effort (default)              */
527 	NET_ADDR_ANY_STATE = -1, /**< Default (invalid) address type */
528 	NET_ADDR_TENTATIVE = 0,  /**< Tentative address              */
536 	NET_ADDR_ANY = 0,
603 	uint8_t optdata[0];
626 #define NET_IPV6_NEXTHDR_HBHO        0
663 #define NET_IPV6H_LENGTH_OFFSET		0x04	/* Offset of the Length field in the IPv6 header */
665 #define NET_IPV6_FRAGH_OFFSET_MASK	0xfff8	/* Mask for the 13-bit Fragment Offset field */
666 #define NET_IPV4_FRAGH_OFFSET_MASK	0x1fff	/* Mask for the 13-bit Fragment Offset field */
667 #define NET_IPV4_MORE_FRAG_MASK		0x2000	/* Mask for the 1-bit More Fragments field */
668 #define NET_IPV4_DO_NOT_FRAG_MASK	0x4000	/* Mask for the 1-bit Do Not Fragment field */
681 	return UNALIGNED_GET(&addr->s6_addr32[0]) == 0 &&  in net_ipv6_is_addr_loopback()
682 		UNALIGNED_GET(&addr->s6_addr32[1]) == 0 &&  in net_ipv6_is_addr_loopback()
683 		UNALIGNED_GET(&addr->s6_addr32[2]) == 0 &&  in net_ipv6_is_addr_loopback()
684 		ntohl(UNALIGNED_GET(&addr->s6_addr32[3])) == 1;  in net_ipv6_is_addr_loopback()
696 	return addr->s6_addr[0] == 0xFF;  in net_ipv6_is_addr_mcast()
746 	uint8_t bits = 128 - length;  in net_ipv6_is_prefix()
767 	mask = (uint8_t)((0xff << (8 - remain)) ^ 0xff) << remain;  in net_ipv6_is_prefix()
784 	uint8_t bits = 128 - prefix_len;  in net_ipv6_addr_prefix_mask()
789 	memset(outaddr, 0, 16U);  in net_ipv6_addr_prefix_mask()
800 	mask = (uint8_t)((0xff << (8 - remain)) ^ 0xff) << remain;  in net_ipv6_addr_prefix_mask()
813 	return addr->s4_addr[0] == 127U;  in net_ipv4_is_addr_loopback()
825 	return UNALIGNED_GET(&addr->s_addr) == 0;  in net_ipv4_is_addr_unspecified()
837 	return (ntohl(UNALIGNED_GET(&addr->s_addr)) & 0xF0000000) == 0xE0000000;  in net_ipv4_is_addr_mcast()
849 	return (ntohl(UNALIGNED_GET(&addr->s_addr)) & 0xFFFF0000) == 0xA9FE0000;  in net_ipv4_is_ll_addr()
865 	masked_24 = ntohl(UNALIGNED_GET(&addr->s_addr)) & 0xFFFFFF00;  in net_ipv4_is_private_addr()
866 	masked_16 = masked_24 & 0xFFFF0000;  in net_ipv4_is_private_addr()
867 	masked_12 = masked_24 & 0xFFF00000;  in net_ipv4_is_private_addr()
868 	masked_10 = masked_24 & 0xFFC00000;  in net_ipv4_is_private_addr()
869 	masked_8 = masked_24 & 0xFF000000;  in net_ipv4_is_private_addr()
871 	return masked_8  == 0x0A000000 || /* 10.0.0.0/8      */  in net_ipv4_is_private_addr()
872 	       masked_10 == 0x64400000 || /* 100.64.0.0/10   */  in net_ipv4_is_private_addr()
873 	       masked_12 == 0xAC100000 || /* 172.16.0.0/12   */  in net_ipv4_is_private_addr()
874 	       masked_16 == 0xC0A80000 || /* 192.168.0.0/16  */  in net_ipv4_is_private_addr()
875 	       masked_24 == 0xC0000200 || /* 192.0.2.0/24    */  in net_ipv4_is_private_addr()
876 	       masked_24 == 0xC0336400 || /* 192.51.100.0/24 */  in net_ipv4_is_private_addr()
877 	       masked_24 == 0xCB007100;   /* 203.0.113.0/24  */  in net_ipv4_is_private_addr()
926 	return UNALIGNED_GET(&addr1->s_addr) == UNALIGNED_GET(&addr2->s_addr);  in net_ipv4_addr_cmp()
982 	return UNALIGNED_GET(&addr->s6_addr16[0]) == htons(0xFE80);  in net_ipv6_is_ll_addr()
994 	return UNALIGNED_GET(&addr->s6_addr16[0]) == htons(0xFEC0);  in net_ipv6_is_sl_addr()
1007 	return addr->s6_addr[0] == 0xFD;  in net_ipv6_is_ula_addr()
1019 	return (addr->s6_addr[0] & 0xE0) == 0x20;  in net_ipv6_is_global_addr()
1035 	masked_32 = ntohl(UNALIGNED_GET(&addr->s6_addr32[0]));  in net_ipv6_is_private_addr()
1036 	masked_7 = masked_32 & 0xfc000000;  in net_ipv6_is_private_addr()
1038 	return masked_32 == 0x20010db8 || /* 2001:db8::/32 */  in net_ipv6_is_private_addr()
1039 	       masked_7  == 0xfc000000;   /* fc00::/7      */  in net_ipv6_is_private_addr()
1147 	return UNALIGNED_GET(&addr->s6_addr32[0]) == 0 &&  in net_ipv6_is_addr_unspecified()
1148 		UNALIGNED_GET(&addr->s6_addr32[1]) == 0 &&  in net_ipv6_is_addr_unspecified()
1149 		UNALIGNED_GET(&addr->s6_addr32[2]) == 0 &&  in net_ipv6_is_addr_unspecified()
1150 		UNALIGNED_GET(&addr->s6_addr32[3]) == 0;  in net_ipv6_is_addr_unspecified()
1155  *  FF02:0:0:0:0:1:FFXX:XXXX defined in RFC 3513
1163 	return UNALIGNED_GET(&addr->s6_addr32[0]) == htonl(0xff020000) &&  in net_ipv6_is_addr_solicited_node()
1164 		UNALIGNED_GET(&addr->s6_addr32[1]) == 0x00000000 &&  in net_ipv6_is_addr_solicited_node()
1165 		UNALIGNED_GET(&addr->s6_addr32[2]) == htonl(0x00000001) &&  in net_ipv6_is_addr_solicited_node()
1166 		((UNALIGNED_GET(&addr->s6_addr32[3]) & htonl(0xff000000)) ==  in net_ipv6_is_addr_solicited_node()
1167 		 htonl(0xff000000));  in net_ipv6_is_addr_solicited_node()
1183 	return (addr->s6_addr[0] == 0xff) && ((addr->s6_addr[1] & 0xF) == scope);  in net_ipv6_is_addr_mcast_scope()
1198 	return (addr_1->s6_addr[0] == 0xff) && (addr_2->s6_addr[0] == 0xff) &&  in net_ipv6_is_same_mcast_scope()
1199 			(addr_1->s6_addr[1] == addr_2->s6_addr[1]);  in net_ipv6_is_same_mcast_scope()
1211 	return net_ipv6_is_addr_mcast_scope(addr, 0x0e);  in net_ipv6_is_addr_mcast_global()
1225 	return net_ipv6_is_addr_mcast_scope(addr, 0x01);  in net_ipv6_is_addr_mcast_iface()
1239 	return net_ipv6_is_addr_mcast_scope(addr, 0x02);  in net_ipv6_is_addr_mcast_link()
1243  * @brief Check if the IPv6 address is a mesh-local scope multicast
1248  * @return True if the address is a mesh-local scope multicast address,
1253 	return net_ipv6_is_addr_mcast_scope(addr, 0x03);  in net_ipv6_is_addr_mcast_mesh()
1267 	return net_ipv6_is_addr_mcast_scope(addr, 0x05);  in net_ipv6_is_addr_mcast_site()
1281 	return net_ipv6_is_addr_mcast_scope(addr, 0x08);  in net_ipv6_is_addr_mcast_org()
1297 	return UNALIGNED_GET(&addr->s6_addr16[1]) == group->s6_addr16[1] &&  in net_ipv6_is_addr_mcast_group()
1298 		UNALIGNED_GET(&addr->s6_addr16[2]) == group->s6_addr16[2] &&  in net_ipv6_is_addr_mcast_group()
1299 		UNALIGNED_GET(&addr->s6_addr16[3]) == group->s6_addr16[3] &&  in net_ipv6_is_addr_mcast_group()
1300 		UNALIGNED_GET(&addr->s6_addr32[1]) == group->s6_addr32[1] &&  in net_ipv6_is_addr_mcast_group()
1301 		UNALIGNED_GET(&addr->s6_addr32[2]) == group->s6_addr32[1] &&  in net_ipv6_is_addr_mcast_group()
1302 		UNALIGNED_GET(&addr->s6_addr32[3]) == group->s6_addr32[3];  in net_ipv6_is_addr_mcast_group()
1317 		{ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  in net_ipv6_is_addr_mcast_all_nodes_group()
1318 		    0x00, 0x00, 0x00, 0x00, 0x00, 0x01 } }  in net_ipv6_is_addr_mcast_all_nodes_group()
1358  *  FF02:0:0:0:0:1:FFXX:XXXX defined in RFC 3513
1367 	dst->s6_addr[0]   = 0xFF;  in net_ipv6_addr_create_solicited_node()
1368 	dst->s6_addr[1]   = 0x02;  in net_ipv6_addr_create_solicited_node()
1369 	UNALIGNED_PUT(0, &dst->s6_addr16[1]);  in net_ipv6_addr_create_solicited_node()
1370 	UNALIGNED_PUT(0, &dst->s6_addr16[2]);  in net_ipv6_addr_create_solicited_node()
1371 	UNALIGNED_PUT(0, &dst->s6_addr16[3]);  in net_ipv6_addr_create_solicited_node()
1372 	UNALIGNED_PUT(0, &dst->s6_addr16[4]);  in net_ipv6_addr_create_solicited_node()
1373 	dst->s6_addr[10]  = 0U;  in net_ipv6_addr_create_solicited_node()
1374 	dst->s6_addr[11]  = 0x01;  in net_ipv6_addr_create_solicited_node()
1375 	dst->s6_addr[12]  = 0xFF;  in net_ipv6_addr_create_solicited_node()
1376 	dst->s6_addr[13]  = src->s6_addr[13];  in net_ipv6_addr_create_solicited_node()
1377 	UNALIGNED_PUT(UNALIGNED_GET(&src->s6_addr16[7]), &dst->s6_addr16[7]);  in net_ipv6_addr_create_solicited_node()
1380 /** @brief Construct an IPv6 address from eight 16-bit words.
1383  *  @param addr0 16-bit word which is part of the address
1384  *  @param addr1 16-bit word which is part of the address
1385  *  @param addr2 16-bit word which is part of the address
1386  *  @param addr3 16-bit word which is part of the address
1387  *  @param addr4 16-bit word which is part of the address
1388  *  @param addr5 16-bit word which is part of the address
1389  *  @param addr6 16-bit word which is part of the address
1390  *  @param addr7 16-bit word which is part of the address
1398 	UNALIGNED_PUT(htons(addr0), &addr->s6_addr16[0]);  in net_ipv6_addr_create()
1399 	UNALIGNED_PUT(htons(addr1), &addr->s6_addr16[1]);  in net_ipv6_addr_create()
1400 	UNALIGNED_PUT(htons(addr2), &addr->s6_addr16[2]);  in net_ipv6_addr_create()
1401 	UNALIGNED_PUT(htons(addr3), &addr->s6_addr16[3]);  in net_ipv6_addr_create()
1402 	UNALIGNED_PUT(htons(addr4), &addr->s6_addr16[4]);  in net_ipv6_addr_create()
1403 	UNALIGNED_PUT(htons(addr5), &addr->s6_addr16[5]);  in net_ipv6_addr_create()
1404 	UNALIGNED_PUT(htons(addr6), &addr->s6_addr16[6]);  in net_ipv6_addr_create()
1405 	UNALIGNED_PUT(htons(addr7), &addr->s6_addr16[7]);  in net_ipv6_addr_create()
1415 	net_ipv6_addr_create(addr, 0xff02, 0, 0, 0, 0, 0, 0, 0x0001);  in net_ipv6_addr_create_ll_allnodes_mcast()
1425 	net_ipv6_addr_create(addr, 0xff02, 0, 0, 0, 0, 0, 0, 0x0002);  in net_ipv6_addr_create_ll_allrouters_mcast()
1437 	net_ipv6_addr_create(addr6, 0, 0, 0, 0, 0, 0xffff,  in net_ipv6_addr_create_v4_mapped()
1438 			     ntohs(addr4->s4_addr16[0]),  in net_ipv6_addr_create_v4_mapped()
1439 			     ntohs(addr4->s4_addr16[1]));  in net_ipv6_addr_create_v4_mapped()
1452 	if (UNALIGNED_GET(&addr->s6_addr32[0]) == 0 &&  in net_ipv6_addr_is_v4_mapped()
1453 	    UNALIGNED_GET(&addr->s6_addr32[1]) == 0 &&  in net_ipv6_addr_is_v4_mapped()
1454 	    UNALIGNED_GET(&addr->s6_addr16[5]) == 0xffff) {  in net_ipv6_addr_is_v4_mapped()
1463  *         Interface identifier is either generated from EUI-64 (MAC) defined
1470  *  @param network_id_len Network identifier length, if set to 0 then the
1472  *  @param dad_counter Duplicate Address Detection counter value, can be set to 0
1477  *  @return 0 if ok, < 0 if error
1495 	(void)net_ipv6_addr_generate_iid(NULL, NULL, NULL, 0, 0, addr, lladdr);  in net_ipv6_addr_create_iid()
1510 	switch (lladdr->len) {  in net_ipv6_addr_based_on_ll()
1512 		if (!memcmp(&addr->s6_addr[14], lladdr->addr, lladdr->len) &&  in net_ipv6_addr_based_on_ll()
1513 		    addr->s6_addr[8]  == 0U &&  in net_ipv6_addr_based_on_ll()
1514 		    addr->s6_addr[9]  == 0U &&  in net_ipv6_addr_based_on_ll()
1515 		    addr->s6_addr[10] == 0U &&  in net_ipv6_addr_based_on_ll()
1516 		    addr->s6_addr[11] == 0xff &&  in net_ipv6_addr_based_on_ll()
1517 		    addr->s6_addr[12] == 0xfe) {  in net_ipv6_addr_based_on_ll()
1523 		if (lladdr->type == NET_LINK_ETHERNET) {  in net_ipv6_addr_based_on_ll()
1524 			if (!memcmp(&addr->s6_addr[9], &lladdr->addr[1], 2) &&  in net_ipv6_addr_based_on_ll()
1525 			    !memcmp(&addr->s6_addr[13], &lladdr->addr[3], 3) &&  in net_ipv6_addr_based_on_ll()
1526 			    addr->s6_addr[11] == 0xff &&  in net_ipv6_addr_based_on_ll()
1527 			    addr->s6_addr[12] == 0xfe &&  in net_ipv6_addr_based_on_ll()
1528 			    (addr->s6_addr[8] ^ 0x02) == lladdr->addr[0]) {  in net_ipv6_addr_based_on_ll()
1535 		if (!memcmp(&addr->s6_addr[9], &lladdr->addr[1],  in net_ipv6_addr_based_on_ll()
1536 			    lladdr->len - 1) &&  in net_ipv6_addr_based_on_ll()
1537 		    (addr->s6_addr[8] ^ 0x02) == lladdr->addr[0]) {  in net_ipv6_addr_based_on_ll()
1640  * @return 0 if ok, < 0 if error
1689  * @return 0 if ok, <0 if error
1702  * @return < 0 if seq1 < seq2, 0 if seq1 == seq2, > 0 if seq > seq2
1706 	return (int32_t)(seq1 - seq2);  in net_tcp_seq_cmp()
1721 	return net_tcp_seq_cmp(seq1, seq2) > 0;  in net_tcp_seq_greater()
1733  * @return 0 if ok, <0 if error
1818  * @return 0 if ok, <0 if error
1829 	return -ENOTSUP;  in net_ipv6_pe_add_filter()
1838  * @return 0 if ok, <0 if error
1847 	return -ENOTSUP;  in net_ipv6_pe_del_filter()