/home/tomh/openhip/hip-0.5/src/usermode/hip_esp.c File Reference

#include <stdio.h>
#include <unistd.h>
#include <pthread.h>
#include <sys/time.h>
#include <sys/errno.h>
#include <netinet/ip.h>
#include <netinet/ip6.h>
#include <netinet/icmp6.h>
#include <netinet/tcp.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <linux/types.h>
#include <string.h>
#include <openssl/hmac.h>
#include <openssl/sha.h>
#include <openssl/des.h>
#include <openssl/rand.h>
#include <win32/pfkeyv2.h>
#include <hip/hip_types.h>
#include <hip/hip_funcs.h>
#include <hip/hip_usermode.h>
#include <hip/hip_sadb.h>
#include <win32/checksum.h>

Classes
struct	ip_esp_hdr
struct	ip_esp_padinfo
struct	eth_hdr
struct	arp_hdr
Defines
#define	BUFF_LEN   2000
#define	HMAC_SHA_96_BITS   96
#define	MAX_ETH_ADDRS   255
#define	ARPOP_REQUEST   1
#define	ARPOP_REPLY   2
Functions
__u16	checksum_udp_packet (__u8 *data, struct sockaddr *src, struct sockaddr *dst)
void	tunreader_shutdown ()
int	handle_nsol (__u8 *in, int len, __u8 *out, int *outlen, struct sockaddr *addr)
int	handle_arp (__u8 *in, int len, __u8 *out, int *outlen, struct sockaddr *addr)
int	hip_esp_encrypt (__u8 *in, int len, __u8 *out, int *outlen, hip_sadb_entry *entry, struct timeval *now)
int	hip_esp_decrypt (__u8 *in, int len, __u8 *out, int *offset, int *outlen, hip_sadb_entry *entry, struct ip *iph, struct timeval *now)
__u16	rewrite_checksum (__u8 *data, __u16 magic)
void	add_eth_header (__u8 *data, __u64 src, __u64 dst, __u32 type)
void	add_ipv4_header (__u8 *data, __u32 src, __u32 dst, struct ip *old, __u16 len, __u8 proto)
void	add_ipv6_pseudo_header (__u8 *data, struct sockaddr *src, struct sockaddr *dst, __u32 len, __u8 proto)
void	add_ipv6_header (__u8 *data, struct sockaddr *src, struct sockaddr *dst, struct ip6_hdr *old, struct ip *old4, __u16 len, __u8 proto)
__u16	in_cksum (struct ip *iph)
__u64	get_eth_addr (int family, __u8 *addr)
int	send_udp_esp_tunnel_activation (__u32 spi_out)
__u32	get_preferred_lsi ()
int	do_bcast ()
int	maxof (int num_args,...)
void	init_readsp ()
void *	hip_esp_output (void *arg)
void *	hip_esp_input (void *arg)
void *	udp_esp_keepalive (void *arg)
void *	tunreader (void *arg)
void	print_sadb ()
Variables
int	tapfd
int	readsp [2] = {0,0}
int	s_esp
int	s_esp_udp
int	s_esp6
int	s_udp
hip_sadb_dst_entry	hip_sadb_dst [SADB_SIZE]
__u32	g_tap_lsi
__u64	g_tap_mac
long	g_read_usec
__u8	eth_addrs [6 *MAX_ETH_ADDRS]
hip_sadb_entry	hip_sadb [SADB_SIZE]

---

Define Documentation

#define ARPOP_REPLY   2

#define ARPOP_REQUEST   1

#define BUFF_LEN   2000

#define HMAC_SHA_96_BITS   96

#define MAX_ETH_ADDRS   255

---

Function Documentation

void add_eth_header	(	__u8 *	data,
		__u64	src,
		__u64	dst,
		__u32	type
	)

void add_ipv4_header	(	__u8 *	data,
		__u32	src,
		__u32	dst,
		struct ip *	old,
		__u16	len,
		__u8	proto
	)

void add_ipv6_header	(	__u8 *	data,
		struct sockaddr *	src,
		struct sockaddr *	dst,
		struct ip6_hdr *	old,
		struct ip *	old4,
		__u16	len,
		__u8	proto
	)

void add_ipv6_pseudo_header	(	__u8 *	data,
		struct sockaddr *	src,
		struct sockaddr *	dst,
		__u32	len,
		__u8	proto
	)

__u16 checksum_udp_packet	(	__u8 *	data,
		struct sockaddr *	src,
		struct sockaddr *	dst
	)

int do_bcast

(

)

__u64 get_eth_addr	(	int	family,
		__u8 *	addr
	)

__u32 get_preferred_lsi

(

)

int handle_arp	(	__u8 *	in,
		int	len,
		__u8 *	out,
		int *	outlen,
		struct sockaddr *	addr
	)

int handle_nsol	(	__u8 *	in,
		int	len,
		__u8 *	out,
		int *	outlen,
		struct sockaddr *	addr
	)

int hip_esp_decrypt	(	__u8 *	in,
		int	len,
		__u8 *	out,
		int *	offset,
		int *	outlen,
		hip_sadb_entry *	entry,
		struct ip *	iph,
		struct timeval *	now
	)

int hip_esp_encrypt	(	__u8 *	in,
		int	len,
		__u8 *	out,
		int *	outlen,
		hip_sadb_entry *	entry,
		struct timeval *	now
	)

void* hip_esp_input

(

void *

arg

)

void* hip_esp_output

(

void *

arg

)

__u16 in_cksum

(

struct ip *

iph

)

void init_readsp

(

)

int maxof	(	int	num_args,
			...
	)

void print_sadb

(

)

__u16 rewrite_checksum	(	__u8 *	data,
		__u16	magic
	)

int send_udp_esp_tunnel_activation

(

__u32

spi_out

)

void* tunreader

(

void *

arg

)

void tunreader_shutdown

(

)

void* udp_esp_keepalive

(

void *

arg

)

---

Variable Documentation

__u8 eth_addrs[6 *MAX_ETH_ADDRS]

long g_read_usec

__u32 g_tap_lsi

__u64 g_tap_mac

hip_sadb_entry hip_sadb[SADB_SIZE]

hip_sadb_dst_entry hip_sadb_dst[SADB_SIZE]

int readsp[2] = {0,0}

int s_esp

int s_esp6

int s_esp_udp

int s_udp

int tapfd

---