ip6.h File Reference

IP6 protocol. More...

#include <stdint.h>
#include <gpxe/in.h>

Go to the source code of this file.

Data Structures
struct	ip6_header
struct	ipv6_pseudo_header
Defines
#define	IP6_VERSION   0x6
#define	IP6_HOP_LIMIT   255
#define	MAX_HDR_LEN   100
	I/O buffer contents This is duplicated in tcp.h and here.
#define	MAX_IOB_LEN   1500
#define	MIN_IOB_LEN   MAX_HDR_LEN + 100
#define	IP6_EQUAL(in6_addr1, in6_addr2)
#define	IS_UNSPECIFIED(addr)
#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
Functions
	FILE_LICENCE (GPL2_OR_LATER)
char *	inet6_ntoa (struct in6_addr in6)
	Print a IP6 address as xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx.
int	add_ipv6_address (struct net_device *netdev, struct in6_addr prefix, int prefix_len, struct in6_addr address, struct in6_addr gateway)
	Add IPv6 interface.
void	del_ipv6_address (struct net_device *netdev)
	Remove IPv6 interface.
Variables
struct net_protocol	ipv6_protocol
struct tcpip_net_protocol	ipv6_tcpip_protocol

---

Detailed Description

IP6 protocol.

Definition in file ip6.h.

---

Define Documentation

#define IP6_VERSION   0x6

Definition at line 17 of file ip6.h.

#define IP6_HOP_LIMIT   255

Definition at line 18 of file ip6.h.

Referenced by ipv6_tx().

#define MAX_HDR_LEN   100

I/O buffer contents This is duplicated in tcp.h and here.

Ideally it should go into iobuf.h

Definition at line 24 of file ip6.h.

Referenced by icmp6_send_solicit(), tcp_xmit(), and tcp_xmit_reset().

#define MAX_IOB_LEN   1500

Definition at line 25 of file ip6.h.

#define MIN_IOB_LEN   MAX_HDR_LEN + 100

Definition at line 26 of file ip6.h.

Referenced by icmp6_send_solicit().

#define IP6_EQUAL	(	in6_addr1,
		in6_addr2		)

Value:

( memcmp ( ( char* ) &( in6_addr1 ), ( char* ) &( in6_addr2 ),\
        sizeof ( struct in6_addr ) ) == 0 )

Definition at line 28 of file ip6.h.

Referenced by add_ipv6_miniroute(), ipv6_tx(), ndp_find_entry(), and ndp_process_advert().

#define IS_UNSPECIFIED

(

addr

)

Value:

( ( (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 ) )

Definition at line 32 of file ip6.h.

Referenced by ipv6_tx().

#define IP6_HOPBYHOP   0x00

Definition at line 57 of file ip6.h.

Referenced by ipv6_process_nxt_hdr().

#define IP6_ROUTING   0x43

Definition at line 58 of file ip6.h.

Referenced by ipv6_process_nxt_hdr().

#define IP6_FRAGMENT   0x44

Definition at line 59 of file ip6.h.

Referenced by ipv6_process_nxt_hdr().

#define IP6_AUTHENTICATION   0x51

Definition at line 60 of file ip6.h.

Referenced by ipv6_process_nxt_hdr().

#define IP6_DEST_OPTS   0x60

Definition at line 61 of file ip6.h.

Referenced by ipv6_process_nxt_hdr().

#define IP6_ESP   0x50

Definition at line 62 of file ip6.h.

Referenced by ipv6_process_nxt_hdr().

#define IP6_ICMP6   0x58

Definition at line 63 of file ip6.h.

Referenced by ipv6_process_nxt_hdr().

#define IP6_NO_HEADER   0x59

Definition at line 64 of file ip6.h.

Referenced by ipv6_process_nxt_hdr().

---

Function Documentation

FILE_LICENCE

(

GPL2_OR_LATER

)

char* inet6_ntoa

(

struct in6_addr

in6

)

Print a IP6 address as xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx.

Definition at line 355 of file ipv6.c.

References sprintf.

Referenced by add_ndp_entry(), ipv6_dump(), ipv6_ntoa(), ipv6_tx(), and ndp_resolve().

                                          {
        static char buf[40];
        uint16_t *bytes = ( uint16_t* ) &in6;
        sprintf ( buf, "%x:%x:%x:%x:%x:%x:%x:%x", bytes[0], bytes[1], bytes[2],
                        bytes[3], bytes[4], bytes[5], bytes[6], bytes[7] );
        return buf;
}

int add_ipv6_address	(	struct net_device *	netdev,
		struct in6_addr	prefix,
		int	prefix_len,
		struct in6_addr	address,
		struct in6_addr	gateway
	)

Add IPv6 interface.

Parameters:

	netdev	Network device
	prefix	Destination prefix
	address	Address of the interface
	gateway	Gateway address (or ::0 for no gateway)

Definition at line 100 of file ipv6.c.

References add_ipv6_miniroute(), del_ipv6_address(), and ENOMEM.

                                                 {
        struct ipv6_miniroute *miniroute;

        /* Clear any existing address for this net device */
        del_ipv6_address ( netdev );

        /* Add new miniroute */
        miniroute = add_ipv6_miniroute ( netdev, prefix, prefix_len, address,
                                         gateway );
        if ( ! miniroute )
                return -ENOMEM;

        return 0;
}

void del_ipv6_address

(

struct net_device *

netdev

)

Remove IPv6 interface.

Parameters:

netdev

Network device

Definition at line 122 of file ipv6.c.

References del_ipv6_miniroute(), ipv6_miniroute::list, list_for_each_entry, and ipv6_miniroute::netdev.

Referenced by add_ipv6_address().

                                                    {
        struct ipv6_miniroute *miniroute;

        list_for_each_entry ( miniroute, &miniroutes, list ) {
                if ( miniroute->netdev == netdev ) {
                        del_ipv6_miniroute ( miniroute );
                        break;
                }
        }
}

---

Variable Documentation

struct net_protocol ipv6_protocol

Definition at line 18 of file ipv6.c.

Referenced by ipv6_tx().

struct tcpip_net_protocol ipv6_tcpip_protocol