ipif.h

TI DSP的网络开发包NDK样本工程,可用与学习嵌入式的TCP/IP学习和应用.

//--------------------------------------------------------------------------
// DEVBENCH
//--------------------------------------------------------------------------
// IPIF.H
//
// Author: Michael A. Denio
// Copyright 1999 by Texas Instruments Inc.
//-------------------------------------------------------------------------

#ifndef _C_IPIF_INC
#define _C_IPIF_INC  /* #defined if this .h file has been included */

//-----------------------------------------------------------------------
//
// Global Task Information
//

// Defined Messages
#define MSG_IP_TIMER                    (ID_IP*MSG_BLOCK + 0)

//-----------------------------------------------------------------------
//
// Standard IP Equates
//

// IP FRAGMENTATION BITS
#define IP_DF   0x4000                  // Ip DON'T FRAGMENT Bit
#define IP_MF   0x2000                  // Ip MORE FRAGMENTS Bit

//
// IP Statistics
//
typedef struct {
        UINT32  Total;          // total packets received
        UINT32  Odropped;       // lost packets due to nobufs, etc.
        UINT32  Badsum;         // checksum bad
        UINT32  Badhlen;        // ip header length < data size
        UINT32  Badlen;         // ip length < ip header length
        UINT32  Badoptions;     // error in option processing
        UINT32  Badvers;        // ip version != 4
        UINT32  Forward;        // packets forwarded
        UINT32  Noproto;        // unknown or unsupported protocol
        UINT32  Delivered;      // datagrams delivered to upper level
        UINT32  Cantforward;    // packets rcvd for unreachable dest
        UINT32  CantforwardBA;  // packets rcvd with illegal addressing
        UINT32  Expired;        // Packets not forwards becaused expired
        UINT32  Redirectsent;   // packets forwarded on same net
        UINT32  Localout;       // total ip packets generated here
        UINT32  Localnoroute;   // Local packets discarded due to no route
        UINT32  Reassembled;    // total packets reassembled ok
        UINT32  Fragments;      // fragments received
        UINT32  Fragdropped;    // frags dropped (dups, out of space)
        UINT32  Fragtimeout;    // fragments timed out
        UINT32  Fragmented;     // datagrams successfully fragmented
        UINT32  Ofragments;     // output fragments created
        UINT32  Cantfrag;       // don't fragment flag was set, etc.
        UINT32  CacheHit;       // Route cache hit
        UINT32  CacheMiss;      // Route cache miss
        UINT32  Filtered;       // packets filtered by firewall
        } IPSTATS;

//
// IP OPTIONS FLAGS
//
#define IPOPT_EOL       0               // End of Options
#define IPOPT_NOP       1               // NOP
#define IPOPT_RR        7               // Record Route
#define IPOPT_TS        68              // timestamp
#define IPOPT_SECURITY  130             ///provide s,c,h,tcc
#define IPOPT_LSRR      131             // Loose Source Record Route
#define IPOPT_SATID     136             // satnet id
#define IPOPT_SSRR      137             // Strict Source Record Route
#define IPOPT_RA        148             // router alert

//
// Offsets to fields in options other than EOL and NOP.
//
#define IPOPT_OPTVAL        0       /* option ID */
#define IPOPT_OLEN      1       /* option length */
#define IPOPT_OFFSET        2       /* offset within option */
#define IPOPT_MINOFF        4       /* min value of above */

//
// Global Statistics
//
extern IPSTATS ips;

//
// Access Functions
//
_extern int    IPTxPacket( PBM_Pkt *pPkt, uint Flags );
_extern void   IPRxPacket( PBM_Pkt *pPkt );
_extern void   IPChecksum( IPHDR *pbHdr );
_extern HANDLE IPGetRoute( uint RtCallFlags, IPN IPDst );
_extern void   IPRtChange( HANDLE hRt );
_extern void   IPReasm( PBM_Pkt *pPkt );
_extern void   IPFilterSet( IPN IPAddr, IPN IPMask );

//
// IP Tx Parameters
//

// --[ We asume that all SO_ supported flags are above 0xF ]----------
#if (0xF & (SO_BROADCAST | SO_DONTROUTE)) != 0
#error Flag Conflict with SOCKET.H
#endif
// -------------------------------------------------------------------

// Flags Parameter Values
#define FLG_IPTX_FORWARDING     0x0001       // Forwarding packet from IPRx
#define FLG_IPTX_DONTFRAG       0x0002       // Set the IP_DF bit
#define FLG_IPTX_RAW            0x0004       // All IP header is valid
#define FLG_IPTX_SRCROUTE       0x0008       // Packet was source routed
#define FLG_IPTX_DONTROUTE      SO_DONTROUTE // Send only to local subnets
#define FLG_IPTX_BROADCAST      SO_BROADCAST // Allow broadcast packets
#define FLG_IPTX_SOSUPPORTED    (SO_DONTROUTE|SO_BROADCAST)

// Return Values
#define IPTX_SUCCESS            0               // Packet OK
#define IPTX_ERROR              EINVAL          // Invalid packet
#define IPTX_ERROR_UNREACH      EHOSTUNREACH    // Route not found
#define IPTX_ERROR_HOSTDOWN     EHOSTDOWN       // Route not UP
#define IPTX_ERROR_REJECTED     EHOSTDOWN       // REJECT Route
#define IPTX_ERROR_EACCES       EACCES          // Illegal operation
#define IPTX_ERROR_ADDRNOTAVAIL EADDRNOTAVAIL   // Could not alloc MAC addr
#define IPTX_ERROR_MSGSIZE      EMSGSIZE        // Fragmentation failed

#endif