config.c

uCLinux下的一个TCP/IP协议栈源码

	6000,		/* X server 0 */
	IPPORT_LOGIN,	/* BSD rlogin */
	IPPORT_MTP,	/* Secondary telnet */
	-1
};
int (*Kicklist[])() = {
	kick,
#ifdef	SMTP
	smtptick,
#endif
	NULL
};

/* Transport protocols atop IP */
struct iplink Iplink[] = {
	TCP_PTCL,	"TCP",	tcp_input,	tcp_dump,
	UDP_PTCL,	"UDP",	udp_input,	udp_dump,
	ICMP_PTCL,	"ICMP",	icmp_input,	icmp_dump,
	IP_PTCL,	"IP",	ipip_recv,	ipip_dump,
	IP4_PTCL,	"IP",	ipip_recv,	ipip_dump,
#ifdef	IPSEC
	ESP_PTCL,	"ESP",	esp_input,	esp_dump,
	AH_PTCL,	"AH",	ah_input,	ah_dump,
#endif
	0,		NULL,	NULL,		NULL
};

/* Transport protocols atop ICMP */
struct icmplink Icmplink[] = {
	TCP_PTCL,	tcp_icmp,
#ifdef	IPSEC
	ESP_PTCL,	esp_icmp,
/*	AH_PTCL,	ah_icmp, */
#endif
	0,		0
};

#ifdef	AX25
/* Linkage to network protocols atop ax25 */
struct axlink Axlink[] = {
	PID_IP,		axip,
	PID_ARP,	axarp,
#ifdef	NETROM
	PID_NETROM,	axnr,
#endif
	PID_NO_L3,	axnl3,
	0,		NULL,
};
#endif	/* AX25 */

/* ARP protocol linkages, indexed by arp's hardware type */
struct arp_type Arp_type[NHWTYPES] = {
#ifdef	NETROM
	AXALEN, 0, 0, 0, NULL, pax25, setcall,	/* ARP_NETROM */
#else
	0, 0, 0, 0, NULL,NULL,NULL,
#endif

#ifdef	ETHER
	EADDR_LEN,IP_TYPE,ARP_TYPE,1,Ether_bdcst,pether,gether, /* ARP_ETHER */
#else
	0, 0, 0, 0, NULL,NULL,NULL,
#endif

	0, 0, 0, 0, NULL,NULL,NULL,			/* ARP_EETHER */

#ifdef	AX25
	AXALEN, PID_IP, PID_ARP, 10, Ax25multi[0], pax25, setcall,
#else
	0, 0, 0, 0, NULL,NULL,NULL,			/* ARP_AX25 */
#endif

	0, 0, 0, 0, NULL,NULL,NULL,			/* ARP_PRONET */

	0, 0, 0, 0, NULL,NULL,NULL,			/* ARP_CHAOS */

	0, 0, 0, 0, NULL,NULL,NULL,			/* ARP_IEEE802 */

#ifdef	ARCNET
	AADDR_LEN, ARC_IP, ARC_ARP, 1, ARC_bdcst, parc, garc, /* ARP_ARCNET */
#else
	0, 0, 0, 0, NULL,NULL,NULL,
#endif

	0, 0, 0, 0, NULL,NULL,NULL,			/* ARP_APPLETALK */
};
/* Get rid of trace references in Iftypes[] if TRACE is turned off */
#ifndef	TRACE
#define	ip_dump		NULL
#define	ax25_dump	NULL
#define	ki_dump		NULL
#define	sl_dump		NULL
#define	ether_dump	NULL
#define	ppp_dump	NULL
#define	arc_dump	NULL
#endif	/* TRACE */

/* Table of interface types. Contains most device- and encapsulation-
 * dependent info
 */
struct iftype Iftypes[] = {
	/* This entry must be first, since Loopback refers to it */
	"None",		nu_send,	nu_output,	NULL,
	NULL,		CL_NONE,	0,		ip_proc,
	NULL,		ip_dump,	NULL,		NULL,

#ifdef	AX25
	"AX25UI",	axui_send,	ax_output,	pax25,
	setcall,	CL_AX25,	AXALEN,		ax_recv,
	ax_forus,	ax25_dump,	NULL,		NULL,

	"AX25I",	axi_send,	ax_output,	pax25,
	setcall,	CL_AX25,	AXALEN,		ax_recv,
	ax_forus,	ax25_dump,	NULL,		NULL,
#endif	/* AX25 */

#ifdef	KISS
	"KISSUI",	axui_send,	ax_output,	pax25,
	setcall,	CL_AX25,	AXALEN,		kiss_recv,
	ki_forus,	ki_dump,	NULL,		NULL,

	"KISSI",	axi_send,	ax_output,	pax25,
	setcall,	CL_AX25,	AXALEN,		kiss_recv,
	ki_forus,	ki_dump,	NULL,		NULL,
#endif	/* KISS */

#ifdef	SLIP
	"SLIP",		slip_send,	NULL,		NULL,
	NULL,		CL_NONE,	0,		ip_proc,
	NULL,		ip_dump,
#ifdef	DIALER
					sd_init,	sd_stat,
#else
					NULL,		NULL,
#endif
#endif	/* SLIP */

#ifdef	VJCOMPRESS
	"VJSLIP",	vjslip_send,	NULL,		NULL,
	NULL,		CL_NONE,	0,		ip_proc,
	NULL,		sl_dump,
#ifdef	DIALER
					sd_init,	sd_stat,
#else
					NULL,		NULL,
#endif
#endif	/* VJCOMPRESS */

#ifdef	ETHER
	/* Note: NULL is specified for the scan function even though
	 * gether() exists because the packet drivers don't support
	 * address setting.
	 */
	"Ethernet",	enet_send,	enet_output,	pether,
	NULL,		CL_ETHERNET,	EADDR_LEN,	eproc,
	ether_forus,	ether_dump,	NULL,		NULL,
#endif	/* ETHER */

#ifdef	NETROM
	"NETROM",	nr_send,	NULL,		pax25,
	setcall,	CL_NETROM,	AXALEN,		NULL,
	NULL,		NULL,	NULL,		NULL,
#endif	/* NETROM */

#ifdef	SLFP
	"SLFP",		pk_send,	NULL,		NULL,
	NULL,		CL_NONE,	0,		ip_proc,
	NULL,		ip_dump,	NULL,		NULL,
#endif	/* SLFP */

#ifdef	PPP
	"PPP",		ppp_send,	ppp_output,	NULL,
	NULL,		CL_PPP,		0,		ppp_proc,
	NULL,		ppp_dump,	NULL,		NULL,
#endif	/* PPP */

#ifdef	SPPP
	"sppp",		sppp_send,	NULL,		NULL,
	NULL,		CL_NONE,	0,		ip_proc,
	NULL,		ip_dump,	NULL,		NULL,
#endif	/* SPPP */

#ifdef	ARCNET
	"Arcnet",	anet_send,	anet_output,	parc,
	garc,		CL_ARCNET,	1,		aproc,
	arc_forus,	arc_dump,	NULL,		NULL,
#endif	/* ARCNET */

#ifdef	QTSO
	"QTSO",		qtso_send,	NULL,		NULL,
	NULL,		CL_NONE,	0,		ip_proc,
	NULL,		NULL,	NULL,		NULL,
#endif	/* QTSO */

#ifdef	CDMA_DM
	"CDMA",		rlp_send,	NULL,		NULL,
	NULL,		CL_NONE,	0,		ip_proc,
	NULL,		ip_dump,	dd_init,	dd_stat,
#endif

#ifdef	DMLITE
	"DMLITE",	rlp_send,	NULL,		NULL,
	NULL,		CL_NONE,	0,		ip_proc,
	NULL,		ip_dump,	dl_init,	dl_stat,
#endif

	NULL,	NULL,		NULL,		NULL,
	NULL,		-1,		0,		NULL,
	NULL,		NULL,	NULL,		NULL,
};

/* Asynchronous interface mode table */
#ifdef	ASY
struct asymode Asymode[] = {
#ifdef	SLIP
	"SLIP",		FR_END,		slip_init,	slip_free,
	"VJSLIP",	FR_END,		slip_init,	slip_free,
#endif
#ifdef	KISS
	"AX25UI",	FR_END,		kiss_init,	kiss_free,
	"AX25I",	FR_END,		kiss_init,	kiss_free,
	"KISSUI",	FR_END,		kiss_init,	kiss_free,
	"KISSI",	FR_END,		kiss_init,	kiss_free,
#endif
#ifdef	NRS
	"NRS",		ETX,		nrs_init,	nrs_free,
#endif
#ifdef	PPP
	"PPP",		HDLC_FLAG,	ppp_init,	ppp_free,
#endif
#ifdef	SPPP
	"SPPP",		HDLC_FLAG,	sppp_init,	sppp_free,
#endif
#ifdef	QTSO
	"QTSO",		HDLC_FLAG,	qtso_init,	qtso_free,
#endif
#ifdef	DMLITE
	"DMLITE",	HDLC_FLAG,	dml_init,	dml_stop,
#endif
	NULL
};

#else	/* not ASY */
/* Stubs for refs to asy I/O in stdio when ASY not configured */
int
asy_open(name)
char *name;
{
	return -1;
}
int
asy_close(dev)
int dev;
{
}
asy_write(dev,buf,cnt)
int dev;
char *buf;
int cnt;
{
	return -1;
}
int
asy_read(dev,buf,cnt);
int dev;
char *buf;
int cnt;
{
	return -1;
}
int
asy_close(dev)
int dev;
{
	return -1;
}
#endif	/* ASY */

#ifndef	IPSEC
void
rtype(uint16 c)
{
}
#endif

/* daemons to be run at startup time */
struct daemon Daemons[] = {
	"killer",	512,	killer,
	"gcollect",	256,	gcollect,
	"timer",	1024,	timerproc,
	"network",	1536,	network,
	"keyboard",	250,	keyboard,
	"random init",	650,	rand_init,
#ifdef	PHOTURIS
	"keygen",	2048,	gendh,
	"key mgmt",	2048,	phot_proc,
#endif
	NULL,	0,	NULL
};

/* Functions to be called on each clock tick */
void (*Cfunc[])() = {
	pctick,	/* Call PC-specific stuff to keep time */
	sesflush,	/* Flush current session output */
#ifdef	ASY
	asytimer,
#endif
#ifdef	SCC
	scctimer,
#endif
	NULL,
};

/* Entry points for garbage collection */
void (*Gcollect[])() = {
	tcp_garbage,
	ip_garbage,
	udp_garbage,
	st_garbage,
	mbuf_garbage,
#ifdef	AX25
	lapb_garbage,
#endif
#ifdef	NETROM
	nr_garbage,
#endif
	NULL
};

/* Functions to be called at shutdown */
void (*Shutdown[])() = {
#ifdef	ASY
	fp_stop,
#endif
#ifdef	SCC
	sccstop,
#endif
#ifdef	SOUND
	sbshut,
#endif
	uchtimer,	/* Unlink timer handler from timer chain */
	NULL,
};

#ifdef	MAILBOX
void (*Listusers)(FILE *network) = listusers;
#else
void (*Listusers)(FILE *network) = NULL;
#endif	/* MAILBOX */

#ifndef	BOOTP
int WantBootp = 0;

int
bootp_validPacket(ip,bp)
struct ip *ip;
struct mbuf *bp;
{
	return 0;
}
#endif	/* BOOTP */

/* Packet tracing stuff */
#ifdef	TRACE
#include "trace.h"

#else	/* TRACE */

/* Stub for packet dump function */
void
dump(iface,direction,type,bp)
struct iface *iface;
int direction;
unsigned type;
struct mbuf *bp;
{
}
void
raw_dump(iface,direction,bp)
struct iface *iface;
int direction;
struct mbuf *bp;
{
}
#endif	/* TRACE */

#ifndef	TRACEBACK
void
stktrace()
{
}
#endif

#ifndef	LZW
void
lzwfree(up)
struct usock *up;
{
}
#endif

#ifdef	AX25
/* Hooks for passing incoming AX.25 data frames to network protocols */
static void
axip(
struct iface *iface,
struct ax25_cb *axp,
uint8 *src,
uint8 *dest,
struct mbuf **bpp,
int mcast
){
	(void)ip_route(iface,bpp,mcast);
}

static void
axarp(
struct iface *iface,
struct ax25_cb *axp,
uint8 *src,
uint8 *dest,
struct mbuf **bpp,
int mcast
){
	(void)arp_input(iface,bpp);
}

#ifdef	NETROM
static void
axnr(
struct iface *iface,
struct ax25_cb *axp,
uint8 *src,
uint8 *dest,
struct mbuf **bpp, 
int mcast
){
	if(!mcast)
		nr_route(bpp,axp);
	else
		nr_nodercv(iface,src,bpp);
}

#endif	/* NETROM */
#endif	/* AX25 */

#ifndef	RIP
/* Stub for routing timeout when RIP is not configured -- just remove entry */
void
rt_timeout(s)
void *s;
{
	struct route *stale = (struct route *)s;

	rt_drop(stale->target,stale->bits);
}
#endif

/* Stubs for demand dialer */
#ifndef	DIALER
void
dialer_kick(asyp)
struct asy *asyp;
{
}
#endif

/* Stubs for Van Jacobsen header compression */
#if !defined(VJCOMPRESS) && defined(ASY)
struct slcompress *
slhc_init(rslots,tslots)
int rslots;
int tslots;
{
	return NULLSLCOMPR;
}
int
slhc_compress(comp, bpp, compress_cid)
struct slcompress *comp;
struct mbuf **bpp;
int compress_cid;
{
	return SL_TYPE_IP;
}
int
slhc_uncompress(comp, bpp)
struct slcompress *comp;
struct mbuf **bpp;
{
	return -1;	/* Can't decompress */
}
void
shlc_i_status(comp)
struct slcompress *comp;
{
}
void
shlc_o_status(comp)
struct slcompress *comp;
{
}
int
slhc_remember(comp, bpp)
struct slcompress *comp;
struct mbuf **bpp;
{
	return -1;
}
#endif /* !defined(VJCOMPRESS) && defined(ASY) */

#ifdef	SERVERS
static int
dostart(argc,argv,p)
int argc;
char *argv[];
void *p;
{
	return subcmd(Startcmds,argc,argv,p);
}
static int
dostop(argc,argv,p)
int argc;
char *argv[];
void *p;
{
	return subcmd(Stopcmds,argc,argv,p);
}
#endif	/* SERVERS */

dotest(argc,argv,p)
int argc;
char *argv[];
void *p;
{
	int32 stime,ftime;
	char *bufa,*bufb;
	int i;

	bufa = malloc(1024);
	bufb = malloc(1024);
	stime = msclock();
	for(i=0;i<1000;i++)
		memcpy(bufa,bufb,1024);
	ftime = msclock();
	printf("Time for 1000 1024-byte copies: %lu ms\n",ftime - stime);
	return 0;
}