1 #ifndef _GPXE_IP6_H 2 #define _GPXE_IP6_H 3 4 /** @file 5 * 6 * IP6 protocol 7 * 8 */ 9 10 FILE_LICENCE ( GPL2_OR_LATER ); 11 12 #include <stdint.h> 13 #include <gpxe/in.h> 14 15 /* IP6 constants */ 16 17 #define IP6_VERSION 0x6 18 #define IP6_HOP_LIMIT 255 19 20 /** 21 * I/O buffer contents 22 * This is duplicated in tcp.h and here. Ideally it should go into iobuf.h 23 */ 24 #define MAX_HDR_LEN 100 25 #define MAX_IOB_LEN 1500 26 #define MIN_IOB_LEN MAX_HDR_LEN + 100 /* To account for padding by LL */ 27 28 #define IP6_EQUAL( in6_addr1, in6_addr2 ) \ 29 ( memcmp ( ( char* ) &( in6_addr1 ), ( char* ) &( in6_addr2 ),\ 30 sizeof ( struct in6_addr ) ) == 0 ) 31 32 #define IS_UNSPECIFIED( addr ) \ 33 ( ( (addr).in6_u.u6_addr32[0] == 0x00000000 ) && \ 34 ( (addr).in6_u.u6_addr32[1] == 0x00000000 ) && \ 35 ( (addr).in6_u.u6_addr32[2] == 0x00000000 ) && \ 36 ( (addr).in6_u.u6_addr32[3] == 0x00000000 ) ) 37 /* IP6 header */ 38 struct ip6_header { 39 uint32_t ver_traffic_class_flow_label; 40 uint16_t payload_len; 41 uint8_t nxt_hdr; 42 uint8_t hop_limit; 43 struct in6_addr src; 44 struct in6_addr dest; 45 }; 46 47 /* IP6 pseudo header */ 48 struct ipv6_pseudo_header { 49 struct in6_addr src; 50 struct in6_addr dest; 51 uint8_t zero_padding; 52 uint8_t nxt_hdr; 53 uint16_t len; 54 }; 55 56 /* Next header numbers */ 57 #define IP6_HOPBYHOP 0x00 58 #define IP6_ROUTING 0x43 59 #define IP6_FRAGMENT 0x44 60 #define IP6_AUTHENTICATION 0x51 61 #define IP6_DEST_OPTS 0x60 62 #define IP6_ESP 0x50 63 #define IP6_ICMP6 0x58 64 #define IP6_NO_HEADER 0x59 65 66 struct io_buffer; 67 struct net_device; 68 struct net_protocol; 69 70 extern struct net_protocol ipv6_protocol; 71 extern struct tcpip_net_protocol ipv6_tcpip_protocol; 72 extern char * inet6_ntoa ( struct in6_addr in6 ); 73 74 extern int add_ipv6_address ( struct net_device *netdev, 75 struct in6_addr prefix, int prefix_len, 76 struct in6_addr address, 77 struct in6_addr gateway ); 78 extern void del_ipv6_address ( struct net_device *netdev ); 79 80 #endif /* _GPXE_IP6_H */ 81
