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IP6 support

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This commit is contained in:
Nikhil Chandru Rao
2006-08-19 15:58:22 +00:00
parent f1e1dfae3d
commit d1d334b8e1
7 changed files with 743 additions and 22 deletions
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47
src/include/gpxe/ip6.h
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@@ -8,18 +8,33 @@
*/
#include <ip.h>
#include <gpxe/in.h>
/* IP6 constants */
#define IP6_VERSION 0x6
#define IP6_HOP_LIMIT 64
#define IP6_HOP_LIMIT 255
/**
* Packet buffer contents
* This is duplicated in tcp.h and here. Ideally it should go into pkbuff.h
*/
#define MAX_HDR_LEN 100
#define MAX_PKB_LEN 1500
#define MIN_PKB_LEN MAX_HDR_LEN + 100 /* To account for padding by LL */
#define IP6_EQUAL( in6_addr1, in6_addr2 ) \
( strncmp ( ( char* ) &( in6_addr1 ), ( char* ) &( in6_addr2 ),\
sizeof ( struct in6_addr ) ) == 0 )
#define IS_UNSPECIFIED( addr ) \
( ( (addr).in6_u.u6_addr32[0] == 0x00000000 ) && \
( (addr).in6_u.u6_addr32[1] == 0x00000000 ) && \
( (addr).in6_u.u6_addr32[2] == 0x00000000 ) && \
( (addr).in6_u.u6_addr32[3] == 0x00000000 ) )
/* IP6 header */
struct ip6_header {
uint32_t vers:4,
traffic_class:8,
flow_label:20;
uint32_t ver_traffic_class_flow_label;
uint16_t payload_len;
uint8_t nxt_hdr;
uint8_t hop_limit;
@@ -27,12 +42,32 @@ struct ip6_header {
struct in6_addr dest;
};
/* IP6 pseudo header */
struct ipv6_pseudo_header {
struct in6_addr src;
struct in6_addr dest;
uint8_t zero_padding;
uint8_t nxt_hdr;
uint16_t len;
};
/* Next header numbers */
#define IP6_HOPBYHOP 0x00
#define IP6_ROUTING 0x43
#define IP6_FRAGMENT 0x44
#define IP6_AUTHENTICATION 0x51
#define IP6_DEST_OPTS 0x60
#define IP6_ESP 0x50
#define IP6_ICMP6 0x58
#define IP6_NO_HEADER 0x59
struct pk_buff;
struct net_device;
struct net_protocol;
extern struct net_protocol ipv6_protocol;
extern struct tcpip_net_protocol ipv6_tcpip_protocol;
extern char * inet6_ntoa ( struct in6_addr in6 );
extern int ipv6_tx ( struct pk_buff *pkb, uint16_t trans_proto, struct in6_addr *dest );
#endif /* _GPXE_IP6_H */