ip64.c File Reference

#include "ip64.h"
#include "ip64-addr.h"
#include "ip64-addrmap.h"
#include "ip64-conf.h"
#include "ip64-special-ports.h"
#include "ip64-eth-interface.h"
#include "ip64-tap-driver.h"
#include "ip64-slip-interface.h"
#include "ip64-ipv4-dhcp.h"
#include "contiki-net.h"
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "net/ip/uip-debug.h"

Data Structures
struct	icmpv4_hdr
struct	icmpv6_hdr
struct	ipv4_hdr
struct	ipv6_hdr
struct	tcp_hdr
struct	udp_hdr

Macros
#define	_DEBUG_   0
#define	BUFSIZE   UIP_BUFSIZE
#define	DEFAULT_LIFETIME   (CLOCK_SECOND * 60 * 5)
#define	EPHEMERAL_PORTRANGE   1024
#define	ICMP6_ECHO   128
#define	ICMP6_ECHO_REPLY   129
#define	ICMP_ECHO   8
#define	ICMP_ECHO_REPLY   0
#define	IP_PROTO_ICMPV4   1
#define	IP_PROTO_ICMPV6   58
#define	IP_PROTO_TCP   6
#define	IP_PROTO_UDP   17
#define	IPV4_HDRLEN   20
#define	IPV6_HDRLEN   40
#define	PRINTF(...)
#define	RST_LIFETIME   (CLOCK_SECOND * 30)
#define	SYN_LIFETIME   (CLOCK_SECOND * 20)
#define	TCP_FIN   0x01
#define	TCP_RST   0x04
#define	TCP_SYN   0x02

Functions
static uint16_t	chksum (uint16_t sum, const uint8_t *data, uint16_t len)
static void	interface_init (void)
static void	interface_output (void)
int	ip64_4to6 (const uint8_t *ipv4packet, const uint16_t ipv4packet_len, uint8_t *resultpacket)
int	ip64_6to4 (const uint8_t *ipv6packet, const uint16_t ipv6packet_len, uint8_t *resultpacket)
void	ip64_conv (uip_ip4addr_t *addr, char ipadr[])
const uip_ip4addr_t *	ip64_get_draddr (void)
const uip_ip4addr_t *	ip64_get_hostaddr (void)
const uip_ip4addr_t *	ip64_get_netmask (void)
int	ip64_hostaddr_is_configured (void)
void	ip64_init (void)
void	ip64_set_draddr (const uip_ip4addr_t *draddr)
void	ip64_set_hostaddr (const uip_ip4addr_t *hostaddr)
void	ip64_set_ipv4_address (const uip_ip4addr_t *addr, const uip_ip4addr_t *netmask)
void	ip64_set_ipv6_address (const uip_ip6addr_t *addr)
void	ip64_set_netmask (const uip_ip4addr_t *netmask)
static uint16_t	ipv4_checksum (struct ipv4_hdr *hdr)
static uint16_t	ipv4_transport_checksum (const uint8_t *packet, uint16_t len, uint8_t proto)
static uint16_t	ipv6_transport_checksum (const uint8_t *packet, uint16_t len, uint8_t proto)

Variables
static uip_ip4addr_t	ip64_draddr
static uip_ip4addr_t	ip64_hostaddr
static uint8_t	ip64_hostaddr_configured = 0
static uip_ip4addr_t	ip64_netmask
uint8_t *	ip64_packet_buffer = ip64_packet_buffer_aligned.u8
uip_buf_t	ip64_packet_buffer_aligned
uint16_t	ip64_packet_buffer_maxlen = BUFSIZE
struct uip_fallback_interface	ip64_uip_fallback_interface
static uint16_t	ipid
static uip_ip4addr_t	ipv4_broadcast_addr
static uip_ip6addr_t	ipv6_local_address
static uint8_t	ipv6_local_address_configured = 0

#define _DEBUG_   0

#define BUFSIZE   UIP_BUFSIZE

Referenced by ip64_4to6().

#define DEFAULT_LIFETIME   (CLOCK_SECOND * 60 * 5)

Referenced by ip64_6to4().

#define EPHEMERAL_PORTRANGE   1024

Referenced by ip64_4to6(), and ip64_6to4().

#define ICMP6_ECHO   128

Referenced by ip64_4to6().

#define ICMP6_ECHO_REPLY   129

Referenced by ip64_6to4().

#define ICMP_ECHO   8

Referenced by ip64_4to6().

#define ICMP_ECHO_REPLY   0

Referenced by ip64_6to4().

#define IP_PROTO_ICMPV4   1

Referenced by ip64_4to6(), ip64_6to4(), and ipv4_transport_checksum().

#define IP_PROTO_ICMPV6   58

Referenced by ip64_4to6(), and ip64_6to4().

#define IP_PROTO_TCP   6

Referenced by ip64_4to6(), and ip64_6to4().

#define IP_PROTO_UDP   17

Referenced by ip64_4to6(), and ip64_6to4().

#define IPV4_HDRLEN   20

Referenced by ip64_4to6(), ip64_6to4(), ipv4_checksum(), and ipv4_transport_checksum().

#define IPV6_HDRLEN   40

Referenced by ip64_4to6(), ip64_6to4(), and ipv6_transport_checksum().

#define PRINTF

(

...

)

Referenced by interface_output(), ip64_4to6(), ip64_6to4(), ip64_init(), and ip64_set_ipv6_address().

#define RST_LIFETIME   (CLOCK_SECOND * 30)

Referenced by ip64_6to4().

#define SYN_LIFETIME   (CLOCK_SECOND * 20)

Referenced by ip64_6to4().

#define TCP_FIN   0x01

Referenced by ip64_6to4().

#define TCP_RST   0x04

Referenced by ip64_6to4().

#define TCP_SYN   0x02

Referenced by ip64_6to4().

static uint16_t chksum ( uint16_t  sum, const uint8_t *  data, uint16_t  len  )

static

References data.

Referenced by ipv4_checksum(), ipv4_transport_checksum(), and ipv6_transport_checksum().

static void interface_init ( void  )

static

References IP64_CONF_UIP_FALLBACK_INTERFACE.

static void interface_output ( void  )

static

References IP64_CONF_UIP_FALLBACK_INTERFACE, PRINTF, and uip_len.

int ip64_4to6	(	const uint8_t *	ipv4packet,
		const uint16_t	ipv4packet_len,
		uint8_t *	resultpacket
	)

References BUFSIZE, ipv4_hdr::destipaddr, ipv6_hdr::destipaddr, tcp_hdr::destport, udp_hdr::destport, EPHEMERAL_PORTRANGE, ipv6_hdr::flow, ipv6_hdr::hoplim, ICMP6_ECHO, ICMP_ECHO, icmpv6_hdr::icmpchksum, ip64_addr_4to6(), ip64_addr_copy6(), ip64_addrmap_lookup_port(), ip64_special_ports_incoming_is_special(), ip64_special_ports_translate_incoming(), ip64_addrmap_entry::ip6addr, ip64_addrmap_entry::ip6port, IP_PROTO_ICMPV4, IP_PROTO_ICMPV6, IP_PROTO_TCP, IP_PROTO_UDP, IPV4_HDRLEN, IPV6_HDRLEN, ipv6_transport_checksum(), ipv4_hdr::len, ipv6_hdr::len, NULL, ipv6_hdr::nxthdr, PRINTF, ipv4_hdr::proto, ipv4_hdr::srcipaddr, ipv6_hdr::srcipaddr, ipv6_hdr::tcflow, tcp_hdr::tcpchksum, ipv4_hdr::ttl, icmpv4_hdr::type, icmpv6_hdr::type, uip_ip4addr_t::u16, udp_hdr::udpchksum, uip_create_linklocal_allnodes_mcast, uip_htons(), uip_ip4addr_cmp, uip_ipaddr_maskcmp, uip_ipaddr_to_quad, uip_ntohs, and ipv6_hdr::vtc.

Referenced by input_callback(), and ip64_eth_interface_input().

int ip64_6to4	(	const uint8_t *	ipv6packet,
		const uint16_t	ipv6packet_len,
		uint8_t *	resultpacket
	)

References DEFAULT_LIFETIME, ipv4_hdr::destipaddr, ipv6_hdr::destipaddr, udp_hdr::destport, EPHEMERAL_PORTRANGE, tcp_hdr::flags, ipv6_hdr::hoplim, ICMP6_ECHO_REPLY, ICMP_ECHO_REPLY, icmpv4_hdr::icmpchksum, ip64_addr_6to4(), ip64_addr_copy4(), ip64_addrmap_create(), ip64_addrmap_lookup(), ip64_addrmap_set_lifetime(), ip64_addrmap_set_recycleble(), ip64_special_ports_outgoing_is_special(), ip64_special_ports_translate_outgoing(), IP_PROTO_ICMPV4, IP_PROTO_ICMPV6, IP_PROTO_TCP, IP_PROTO_UDP, ipv4_hdr::ipchksum, ipv4_hdr::ipid, ipv4_hdr::ipoffset, ipv4_checksum(), IPV4_HDRLEN, ipv4_transport_checksum(), IPV6_HDRLEN, ipv6_transport_checksum(), ipv4_hdr::len, ipv6_hdr::len, ip64_addrmap_entry::mapped_port, NULL, ipv6_hdr::nxthdr, PRINTF, ipv4_hdr::proto, RST_LIFETIME, ipv4_hdr::srcipaddr, ipv6_hdr::srcipaddr, udp_hdr::srcport, SYN_LIFETIME, TCP_FIN, TCP_RST, TCP_SYN, tcp_hdr::tcpchksum, ipv4_hdr::tos, ipv4_hdr::ttl, icmpv4_hdr::type, icmpv6_hdr::type, udp_hdr::udpchksum, uip_debug_ipaddr_print(), UIP_HTONS, uip_htons(), uip_ip4addr_cmp, uip_ntohs, and ipv4_hdr::vhl.

Referenced by output().

void ip64_conv	(	uip_ip4addr_t *	addr,
		char	ipadr[]
	)

References i, NULL, str, and uip_ip4addr_t::u8.

Referenced by ip64_init().

const uip_ip4addr_t* ip64_get_draddr

(

void

)

References ip64_draddr.

Referenced by ip64_arp_check_cache(), ip64_arp_create_arp_request(), and ip64_arp_create_ethhdr().

const uip_ip4addr_t* ip64_get_hostaddr

(

void

)

References ip64_hostaddr.

Referenced by ip64_arp_arp_input(), ip64_arp_check_cache(), ip64_arp_create_arp_request(), and ip64_arp_create_ethhdr().

const uip_ip4addr_t* ip64_get_netmask

(

void

)

References ip64_netmask.

Referenced by ip64_arp_check_cache(), ip64_arp_create_arp_request(), and ip64_arp_create_ethhdr().

int ip64_hostaddr_is_configured

(

void

)

References ip64_hostaddr_configured.

Referenced by PROCESS_THREAD().

void ip64_init

(

void

)

References addr, uip_ds6_netif::addr_list, ADDR_PREFERRED, ADDR_TENTATIVE, i, ip64_conv(), ip64_ipv4_dhcp_init(), ip64_set_draddr(), ip64_set_ipv4_address(), ip64_set_ipv6_address(), uip_ds6_addr::ipaddr, uip_ds6_addr::isused, netmask, PRINTF, uip_ds6_addr::state, state, UIP_DS6_ADDR_NB, uip_ds6_if, and uip_ipaddr.

Referenced by PROCESS_THREAD().

void ip64_set_draddr

(

const uip_ip4addr_t *

draddr

)

References ip64_addr_copy4().

Referenced by ip64_dhcpc_configured(), and ip64_init().

void ip64_set_hostaddr

(

const uip_ip4addr_t *

hostaddr

)

References ip64_addr_copy4().

Referenced by ip64_dhcpc_configured(), and ip64_set_ipv4_address().

void ip64_set_ipv4_address	(	const uip_ip4addr_t *	addr,
		const uip_ip4addr_t *	netmask
	)

References ip64_set_hostaddr(), ip64_set_netmask(), printf, and uip_ip4addr_t::u8.

Referenced by ip64_init().

void ip64_set_ipv6_address

(

const uip_ip6addr_t *

addr

)

References ip64_addr_copy6(), PRINTF, and uip_debug_ipaddr_print().

Referenced by ip64_init().

void ip64_set_netmask

(

const uip_ip4addr_t *

netmask

)

References ip64_addr_copy4().

Referenced by ip64_dhcpc_configured(), and ip64_set_ipv4_address().

static uint16_t ipv4_checksum ( struct ipv4_hdr *  hdr )

static

References chksum(), IPV4_HDRLEN, and uip_htons().

Referenced by ip64_6to4().

static uint16_t ipv4_transport_checksum ( const uint8_t *  packet, uint16_t  len, uint8_t  proto  )

static

References chksum(), IP_PROTO_ICMPV4, IPV4_HDRLEN, ipv4_hdr::proto, ipv4_hdr::srcipaddr, and uip_htons().

Referenced by ip64_6to4().

static uint16_t ipv6_transport_checksum ( const uint8_t *  packet, uint16_t  len, uint8_t  proto  )

static

References chksum(), ipv6_hdr::destipaddr, IPV6_HDRLEN, ipv6_hdr::srcipaddr, and uip_htons().

Referenced by ip64_4to6(), and ip64_6to4().

uip_ip4addr_t ip64_draddr

static

Referenced by ip64_get_draddr().

uip_ip4addr_t ip64_hostaddr

static

Referenced by ip64_get_hostaddr().

uint8_t ip64_hostaddr_configured = 0

static

Referenced by ip64_hostaddr_is_configured().

uip_ip4addr_t ip64_netmask

static

Referenced by ip64_get_netmask().

uint8_t* ip64_packet_buffer = ip64_packet_buffer_aligned.u8

Referenced by input_callback(), output(), and PROCESS_THREAD().

uip_buf_t ip64_packet_buffer_aligned

uint16_t ip64_packet_buffer_maxlen = BUFSIZE

Referenced by PROCESS_THREAD().

struct uip_fallback_interface ip64_uip_fallback_interface

Initial value:

= {
  interface_init, interface_output
}

uint16_t ipid

static

uip_ip4addr_t ipv4_broadcast_addr

static

uip_ip6addr_t ipv6_local_address

static

uint8_t ipv6_local_address_configured = 0

static