/* ipLib.c - ip protocol interface library *//* Copyright 1984 - 2001 Wind River Systems, Inc. */#include "copyright_wrs.h"/*modification history--------------------01n,15oct01,rae  merge from truestack ver 01n, base 01m (VIRTUAL_STACK)01m,13nov97,vin  consolidated all flags into _ipCfgFlags.01b,15jul97,spm  made IP checksum calculation configurable (SPR #7836)01a,20jan97,vin  written*//*DESCRIPTIONThis library contains the interface to the ip protocol. The IP protocolis configured in this library. The routine ipLibInit() is responsible for configuring the ip protocolwith various parameters.INCLUDE FILES: netLib.h.pG "Network"NOMANUAL*//* includes */#include "vxWorks.h"#include "netLib.h"#include "net/protosw.h"#include "net/domain.h"#include "net/mbuf.h"#include "netinet/in.h"#include "netinet/in_systm.h"#include "netinet/ip.h"#include "netinet/ip_var.h"#ifdef VIRTUAL_STACK#include "netinet/vsLib.h"#endif /* VIRTUAL_STACK *//* externs */#ifndef VIRTUAL_STACKIMPORT int		_ipCfgFlags;IMPORT int		_protoSwIndex;IMPORT struct protosw 	inetsw [IP_PROTO_NUM_MAX]; IMPORT int		ip_defttl;IMPORT int 		ipqmaxlen;IMPORT int		ipfragttl;#endif /* VIRTUAL_STACK *//* globals *//* defines *//* typedefs *//* locals *//* forward declarations */STATUS ipLibInit (IP_CFG_PARAMS * ipCfg); STATUS rawIpLibInit (void);STATUS rawLibInit (void);STATUS ipLibInit     (    IP_CFG_PARAMS * 	ipCfg			/* ip config parameters */    )    {    FAST struct protosw	* pProtoSwitch;     if (_protoSwIndex >= sizeof(inetsw)/sizeof(inetsw[0]))	return (ERROR) ;    pProtoSwitch = &inetsw [_protoSwIndex];     if (pProtoSwitch->pr_domain != NULL)	return (OK); 				/* already initialized */    pProtoSwitch->pr_type   	=  0;    pProtoSwitch->pr_domain   	=  &inetdomain;    pProtoSwitch->pr_protocol   =  0;    pProtoSwitch->pr_flags	=  0;    pProtoSwitch->pr_input	=  0;    pProtoSwitch->pr_output	=  ip_output;    pProtoSwitch->pr_ctlinput	=  0;    pProtoSwitch->pr_ctloutput	=  0;    pProtoSwitch->pr_usrreq	=  0;    pProtoSwitch->pr_init	=  ip_init;    pProtoSwitch->pr_fasttimo	=  0;    pProtoSwitch->pr_slowtimo	=  ip_slowtimo;    pProtoSwitch->pr_drain	=  ip_drain;    pProtoSwitch->pr_sysctl	=  0;    _protoSwIndex++;     /* initialize ip configuration parameters */    _ipCfgFlags = ipCfg->ipCfgFlags;		/* ip configuration flags */    ip_defttl 	= ipCfg->ipDefTtl; 		/* ip default time to live */    ipqmaxlen 	= ipCfg->ipIntrQueueLen;	/* ip queue maximum length */    ipfragttl	= ipCfg->ipFragTtl; 		/* ip fragment time to live */    return (OK);     }STATUS rawIpLibInit (void)    {    FAST struct protosw	* pProtoSwitch;     if (_protoSwIndex >= sizeof(inetsw)/sizeof(inetsw[0]))	return (ERROR) ;    pProtoSwitch = &inetsw [_protoSwIndex];     if (pProtoSwitch->pr_domain != NULL)	return (OK); 				/* already initialized */    pProtoSwitch->pr_type   	=  SOCK_RAW;    pProtoSwitch->pr_domain   	=  &inetdomain;    pProtoSwitch->pr_protocol   =  IPPROTO_RAW;    pProtoSwitch->pr_flags	=  PR_ATOMIC | PR_ADDR;    pProtoSwitch->pr_input	=  rip_input;    pProtoSwitch->pr_output	=  rip_output;    pProtoSwitch->pr_ctlinput	=  0;    pProtoSwitch->pr_ctloutput	=  rip_ctloutput;    pProtoSwitch->pr_usrreq	=  rip_usrreq;    pProtoSwitch->pr_init	=  0;    pProtoSwitch->pr_fasttimo	=  0;    pProtoSwitch->pr_slowtimo	=  0;    pProtoSwitch->pr_drain	=  0;    pProtoSwitch->pr_sysctl	=  0;    _protoSwIndex++;     return (OK);     }STATUS rawLibInit (void)    {    FAST struct protosw	* pProtoSwitch;     if (_protoSwIndex >= sizeof(inetsw)/sizeof(inetsw[0]))	return (ERROR) ;    pProtoSwitch = &inetsw [_protoSwIndex];     if (pProtoSwitch->pr_domain != NULL)	return (OK); 				/* already initialized */    pProtoSwitch->pr_type   	=  SOCK_RAW;    pProtoSwitch->pr_domain   	=  &inetdomain;    pProtoSwitch->pr_protocol   =  0;    pProtoSwitch->pr_flags	=  PR_ATOMIC | PR_ADDR;    pProtoSwitch->pr_input	=  rip_input;    pProtoSwitch->pr_output	=  rip_output;    pProtoSwitch->pr_ctlinput	=  0;     pProtoSwitch->pr_ctloutput	=  rip_ctloutput;    pProtoSwitch->pr_usrreq	=  rip_usrreq;    pProtoSwitch->pr_init	=  rip_init;    pProtoSwitch->pr_fasttimo	=  0;    pProtoSwitch->pr_slowtimo	=  0;    pProtoSwitch->pr_drain	=  0;    pProtoSwitch->pr_sysctl	=  0;    _protoSwIndex++;     return (OK);     }