ipLib.c
上传用户:nvosite88
上传日期:2007-01-17
资源大小:4983k
文件大小:4k
- /* 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
- */
- /*
- DESCRIPTION
- This library contains the interface to the ip protocol. The IP protocol
- is configured in this library.
- The routine ipLibInit() is responsible for configuring the ip protocol
- with 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_STACK
- IMPORT 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);
- }