/home/tomh/openhip/hip-0.5/src/protocol/hip_stun.c File Reference

#include <assert.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <stdio.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <netdb.h>
#include <arpa/nameser.h>
#include <resolv.h>
#include <net/if.h>
#include <sys/types.h>
#include <fcntl.h>
#include <openssl/rand.h>
#include <time.h>
#include <hip/hip_stun_udp.h>
#include <hip/hip_stun.h>
#include <openssl/hmac.h>


Functions
static void	computeHmac (char hmac, const char input, int length, const char *key, int keySize)
static int	stunParseAtrAddress (char body, unsigned int hdrLen, StunAtrAddress4 result)
static int	stunParseAtrChangeRequest (char body, unsigned int hdrLen, StunAtrChangeRequest result)
static int	stunParseAtrError (char body, unsigned int hdrLen, StunAtrError result)
static int	stunParseAtrUnknown (char body, unsigned int hdrLen, StunAtrUnknown result)
static int	stunParseAtrString (char body, unsigned int hdrLen, StunAtrString result)
static int	stunParseAtrIntegrity (char body, unsigned int hdrLen, StunAtrIntegrity result)
int	stunParseMessage (char buf, unsigned int bufLen, StunMessage msg, int verbose)
static char *	encode16 (char *buf, UInt16 data)
static char *	encode32 (char *buf, UInt32 data)
static char *	encode (char buf, const char data, unsigned int length)
static char *	encodeAtrAddress4 (char *ptr, UInt16 type, const StunAtrAddress4 atr)
static char *	encodeAtrChangeRequest (char *ptr, const StunAtrChangeRequest atr)
static char *	encodeAtrError (char *ptr, const StunAtrError atr)
static char *	encodeAtrUnknown (char *ptr, const StunAtrUnknown atr)
static char *	encodeXorOnly (char *ptr)
static char *	encodeAtrString (char *ptr, UInt16 type, const StunAtrString atr)
static char *	encodeAtrIntegrity (char ptr, const StunAtrIntegrity atr)
unsigned int	stunEncodeMessage (const StunMessage msg, char buf, unsigned int bufLen, const StunAtrString *password, int verbose)
int	stunRand ()
int	stunRandomPort ()
static void	toHex (const char buffer, int bufferSize, char output)
void	stunCreateUserName (const StunAddress4 source, StunAtrString username)
void	stunCreatePassword (const StunAtrString username, StunAtrString password)
UInt64	stunGetSystemTimeSecs ()
void	printIPv4Addr (StunAddress4 *ad)
void	printUInt128 (UInt128 r)
int	stunParseHostName (char peerName, UInt32 ip, UInt16 *portVal, UInt16 defaultPort)
int	stunParseServerName (char name, StunAddress4 addr)
static void	stunCreateErrorResponse (StunMessage response, int cl, int number, const char msg)
static void	stunCreateSharedSecretResponse (const StunMessage request, const StunAddress4 source, StunMessage *response)
int	stunServerProcessMsg (char buf, unsigned int bufLen, StunAddress4 from, StunAddress4 secondary, StunAddress4 myAddr, StunAddress4 altAddr, StunMessage resp, StunAddress4 destination, StunAtrString hmacPassword, int changePort, int changeIp, int verbose)
int	stunInitServer (StunServerInfo info, const StunAddress4 myAddr, const StunAddress4 *altAddr, int startMediaPort, int verbose)
void	stunStopServer (StunServerInfo *info)
int	stunServerProcess (StunServerInfo *info, int verbose)
int	stunFindLocalInterfaces (UInt32 *addresses, int maxRet)
void	stunBuildReqSimple (StunMessage msg, const StunAtrString username, int changePort, int changeIp, unsigned int id)
static void	stunSendTest (int myFd, StunAddress4 dest, const StunAtrString username, const StunAtrString *password, int testNum, int verbose)
void	stunGetUserNameAndPassword (const StunAddress4 dest, StunAtrString username, StunAtrString *password)
void	stunTest (StunAddress4 dest, int testNum, int verbose, StunAddress4 sAddr)
NatType	stunNatType (StunAddress4 dest, int verbose, int preservePort, int hairpin, int portnb, StunAddress4 sAddr)
int	stunOpenSocket (StunAddress4 dest, StunAddress4 mapAddr, int portnb, StunAddress4 *srcAddr, int verbose)
int	stunOpenSocketPair (StunAddress4 dest, StunAddress4 mapAddr, int fd1, int fd2, int port, StunAddress4 *srcAddr, int verbose)
Variables
UInt8	IPv4Family = 0x01
UInt8	IPv6Family = 0x02
UInt32	ChangeIpFlag = 0x04
UInt32	ChangePortFlag = 0x02
UInt16	MappedAddress = 0x0001
UInt16	ResponseAddress = 0x0002
UInt16	ChangeRequest = 0x0003
UInt16	SourceAddress = 0x0004
UInt16	ChangedAddress = 0x0005
UInt16	Username = 0x0006
UInt16	Password = 0x0007
UInt16	MessageIntegrity = 0x0008
UInt16	ErrorCode = 0x0009
UInt16	UnknownAttribute = 0x000A
UInt16	ReflectedFrom = 0x000B
UInt16	XorMappedAddress = 0x8020
UInt16	XorOnly = 0x0021
UInt16	ServerName = 0x8022
UInt16	SecondaryAddress = 0x8050
UInt16	BindRequestMsg = 0x0001
UInt16	BindResponseMsg = 0x0101
UInt16	BindErrorResponseMsg = 0x0111
UInt16	SharedSecretRequestMsg = 0x0002
UInt16	SharedSecretResponseMsg = 0x0102
UInt16	SharedSecretErrorResponseMsg = 0x0112

Function Documentation

static void computeHmac	(	char *	hmac,
		const char *	input,
		int	length,
		const char *	key,
		int	keySize
	)			`[static]`

static char* encode	(	char *	buf,
		const char *	data,
		unsigned int	length
	)			`[static]`

static char* encode16	(	char *	buf,
		UInt16	data
	)			`[static]`

static char* encode32	(	char *	buf,
		UInt32	data
	)			`[static]`

static char* encodeAtrAddress4	(	char *	ptr,
		UInt16	type,
		const StunAtrAddress4	atr
	)			`[static]`

static char* encodeAtrChangeRequest	(	char *	ptr,
		const StunAtrChangeRequest	atr
	)			`[static]`

static char* encodeAtrError	(	char *	ptr,
		const StunAtrError	atr
	)			`[static]`

static char* encodeAtrIntegrity	(	char *	ptr,
		const StunAtrIntegrity *	atr
	)			`[static]`

static char* encodeAtrString	(	char *	ptr,
		UInt16	type,
		const StunAtrString	atr
	)			`[static]`

static char* encodeAtrUnknown	(	char *	ptr,
		const StunAtrUnknown	atr
	)			`[static]`

static char* encodeXorOnly ( char * ptr ) [static]

void printIPv4Addr ( StunAddress4 * ad )

void printUInt128 ( UInt128 r )

void stunBuildReqSimple	(	StunMessage *	msg,
		const StunAtrString *	username,
		int	changePort,
		int	changeIp,
		unsigned int	id
	)

static void stunCreateErrorResponse	(	StunMessage *	response,
		int	cl,
		int	number,
		const char *	msg
	)			`[static]`

void stunCreatePassword	(	const StunAtrString *	username,
		StunAtrString *	password
	)

static void stunCreateSharedSecretResponse	(	const StunMessage *	request,
		const StunAddress4 *	source,
		StunMessage *	response
	)			`[static]`

void stunCreateUserName	(	const StunAddress4 *	source,
		StunAtrString *	username
	)

unsigned int stunEncodeMessage	(	const StunMessage *	msg,
		char *	buf,
		unsigned int	bufLen,
		const StunAtrString *	password,
		int	verbose
	)

int stunFindLocalInterfaces	(	UInt32 *	addresses,
		int	maxRet
	)

UInt64 stunGetSystemTimeSecs ( )

void stunGetUserNameAndPassword	(	const StunAddress4 *	dest,
		StunAtrString *	username,
		StunAtrString *	password
	)

int stunInitServer	(	StunServerInfo *	info,
		const StunAddress4 *	myAddr,
		const StunAddress4 *	altAddr,
		int	startMediaPort,
		int	verbose
	)

NatType stunNatType	(	StunAddress4 *	dest,
		int	verbose,
		int *	preservePort,
		int *	hairpin,
		int	portnb,
		StunAddress4 *	sAddr
	)

int stunOpenSocket	(	StunAddress4 *	dest,
		StunAddress4 *	mapAddr,
		int	portnb,
		StunAddress4 *	srcAddr,
		int	verbose
	)

int stunOpenSocketPair	(	StunAddress4 *	dest,
		StunAddress4 *	mapAddr,
		int *	fd1,
		int *	fd2,
		int	port,
		StunAddress4 *	srcAddr,
		int	verbose
	)

static int stunParseAtrAddress	(	char *	body,
		unsigned int	hdrLen,
		StunAtrAddress4 *	result
	)			`[static]`

static int stunParseAtrChangeRequest	(	char *	body,
		unsigned int	hdrLen,
		StunAtrChangeRequest *	result
	)			`[static]`

static int stunParseAtrError	(	char *	body,
		unsigned int	hdrLen,
		StunAtrError *	result
	)			`[static]`

static int stunParseAtrIntegrity	(	char *	body,
		unsigned int	hdrLen,
		StunAtrIntegrity *	result
	)			`[static]`

static int stunParseAtrString	(	char *	body,
		unsigned int	hdrLen,
		StunAtrString *	result
	)			`[static]`

static int stunParseAtrUnknown	(	char *	body,
		unsigned int	hdrLen,
		StunAtrUnknown *	result
	)			`[static]`

int stunParseHostName	(	char *	peerName,
		UInt32 *	ip,
		UInt16 *	portVal,
		UInt16	defaultPort
	)

int stunParseMessage	(	char *	buf,
		unsigned int	bufLen,
		StunMessage *	msg,
		int	verbose
	)

int stunParseServerName	(	char *	name,
		StunAddress4 *	addr
	)

int stunRand ( )

int stunRandomPort ( )

static void stunSendTest	(	int	myFd,
		StunAddress4 *	dest,
		const StunAtrString *	username,
		const StunAtrString *	password,
		int	testNum,
		int	verbose
	)			`[static]`

int stunServerProcess	(	StunServerInfo *	info,
		int	verbose
	)

int stunServerProcessMsg	(	char *	buf,
		unsigned int	bufLen,
		StunAddress4 *	from,
		StunAddress4 *	secondary,
		StunAddress4 *	myAddr,
		StunAddress4 *	altAddr,
		StunMessage *	resp,
		StunAddress4 *	destination,
		StunAtrString *	hmacPassword,
		int *	changePort,
		int *	changeIp,
		int	verbose
	)