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https://github.com/ipxe/ipxe
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IP6 support
This commit is contained in:
Nikhil Chandru Rao
58
src/include/gpxe/icmp6.h
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58
src/include/gpxe/icmp6.h
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@@ -0,0 +1,58 @@
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#ifndef _GPXE_ICMP6_H
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#define _GPXE_ICMP6_H
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/** @file
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*
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* ICMP6 protocol
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*
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*/
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#include <ip.h>
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#include <gpxe/ip6.h>
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#include <gpxe/ndp.h>
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#define ICMP6_NSOLICIT 135
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#define ICMP6_NADVERT 136
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extern struct tcpip_protocol icmp6_protocol;
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struct icmp6_header {
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uint8_t type;
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uint8_t code;
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uint16_t csum;
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/* Message body */
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};
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struct neighbour_solicit {
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uint8_t type;
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uint8_t code;
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uint16_t csum;
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uint32_t reserved;
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struct in6_addr target;
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/* "Compulsory" options */
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uint8_t opt_type;
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uint8_t opt_len;
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#warning hack alert
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uint8_t opt_ll_addr[6];
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};
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struct neighbour_advert {
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uint8_t type;
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uint8_t code;
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uint16_t csum;
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uint8_t flags;
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uint8_t reserved;
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struct in6_addr target;
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uint8_t opt_type;
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uint8_t opt_len;
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#warning hack alert
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uint8_t opt_ll_addr[6];
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};
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#define ICMP6_FLAGS_ROUTER 0x80
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#define ICMP6_FLAGS_SOLICITED 0x40
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#define ICMP6_FLAGS_OVERRIDE 0x20
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int icmp6_send_solicit ( struct net_device *netdev, struct in6_addr *src, struct in6_addr *dest );
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#endif /* _GPXE_ICMP6_H */
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@@ -10,6 +10,7 @@
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#define IP_IGMP 2
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#define IP_TCP 6
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#define IP_UDP 17
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#define IP_ICMP6 58
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/* IP address constants */
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@@ -36,7 +37,7 @@ struct in6_addr {
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uint8_t u6_addr8[16];
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uint16_t u6_addr16[8];
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uint32_t u6_addr32[4];
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} in16_u;
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} in6_u;
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#define s6_addr in6_u.u6_addr8
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#define s6_addr16 in6_u.u6_addr16
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#define s6_addr32 in6_u.u6_addr32
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@@ -67,7 +68,7 @@ struct sockaddr_in6 {
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*/
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sa_family_t sin_family;
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/** TCP/IP port (part of struct @c sockaddr_tcpip) */
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uint16_t sin_port;
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uint16_t sin_port;
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uint32_t sin6_flowinfo; /* Flow number */
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struct in6_addr sin6_addr; /* 128-bit destination address */
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uint32_t sin6_scope_id; /* Scope ID */
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@@ -8,18 +8,33 @@
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*/
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#include <ip.h>
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#include <gpxe/in.h>
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/* IP6 constants */
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#define IP6_VERSION 0x6
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#define IP6_HOP_LIMIT 64
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#define IP6_HOP_LIMIT 255
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/**
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* Packet buffer contents
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* This is duplicated in tcp.h and here. Ideally it should go into pkbuff.h
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*/
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#define MAX_HDR_LEN 100
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#define MAX_PKB_LEN 1500
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#define MIN_PKB_LEN MAX_HDR_LEN + 100 /* To account for padding by LL */
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#define IP6_EQUAL( in6_addr1, in6_addr2 ) \
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( strncmp ( ( char* ) &( in6_addr1 ), ( char* ) &( in6_addr2 ),\
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sizeof ( struct in6_addr ) ) == 0 )
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#define IS_UNSPECIFIED( addr ) \
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( ( (addr).in6_u.u6_addr32[0] == 0x00000000 ) && \
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( (addr).in6_u.u6_addr32[1] == 0x00000000 ) && \
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( (addr).in6_u.u6_addr32[2] == 0x00000000 ) && \
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( (addr).in6_u.u6_addr32[3] == 0x00000000 ) )
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/* IP6 header */
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struct ip6_header {
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uint32_t vers:4,
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traffic_class:8,
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flow_label:20;
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uint32_t ver_traffic_class_flow_label;
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uint16_t payload_len;
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uint8_t nxt_hdr;
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uint8_t hop_limit;
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@@ -27,12 +42,32 @@ struct ip6_header {
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struct in6_addr dest;
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};
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/* IP6 pseudo header */
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struct ipv6_pseudo_header {
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struct in6_addr src;
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struct in6_addr dest;
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uint8_t zero_padding;
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uint8_t nxt_hdr;
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uint16_t len;
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};
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/* Next header numbers */
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#define IP6_HOPBYHOP 0x00
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#define IP6_ROUTING 0x43
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#define IP6_FRAGMENT 0x44
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#define IP6_AUTHENTICATION 0x51
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#define IP6_DEST_OPTS 0x60
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#define IP6_ESP 0x50
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#define IP6_ICMP6 0x58
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#define IP6_NO_HEADER 0x59
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struct pk_buff;
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struct net_device;
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struct net_protocol;
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extern struct net_protocol ipv6_protocol;
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extern struct tcpip_net_protocol ipv6_tcpip_protocol;
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extern char * inet6_ntoa ( struct in6_addr in6 );
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extern int ipv6_tx ( struct pk_buff *pkb, uint16_t trans_proto, struct in6_addr *dest );
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#endif /* _GPXE_IP6_H */
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23
src/include/gpxe/ndp.h
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23
src/include/gpxe/ndp.h
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@@ -0,0 +1,23 @@
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#include <stdint.h>
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#include <byteswap.h>
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#include <errno.h>
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#include <string.h>
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#include <gpxe/icmp6.h>
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#include <gpxe/ip6.h>
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#include <gpxe/in.h>
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#include <gpxe/netdevice.h>
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#include <gpxe/pkbuff.h>
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#include <gpxe/tcpip.h>
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#define NDP_STATE_INVALID 0
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#define NDP_STATE_INCOMPLETE 1
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#define NDP_STATE_REACHABLE 2
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#define NDP_STATE_DELAY 3
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#define NDP_STATE_PROBE 4
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#define NDP_STATE_STALE 5
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static struct ndp_entry * ndp_find_entry ( struct in6_addr *in6 );
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int ndp_resolve ( struct net_device *netdev, struct in6_addr *src,
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struct in6_addr *dest, void *dest_ll_addr );
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int ndp_process_advert ( struct pk_buff *pkb, struct sockaddr_tcpip *st_src,
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struct sockaddr_tcpip *st_dest );
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