/*-----------------------------------------------------------------------------
   File:   vnscommand.h 
   Date:   Sat Apr 06 21:58:07 PST 2002 
   Contact:  casado@stanford.edu
  
   Description:
  
   A c-style declaration of commands for the virtual router.
  
  ---------------------------------------------------------------------------*/

#ifndef __VNSCOMMAND_H
#define __VNSCOMMAND_H

#define VNSOPEN       1
#define VNSCLOSE      2
#define VNSPACKET     4
#define VNSBANNER     8
#define VNSHWINFO    16

#define IDSIZE 32

/*-----------------------------------------------------------------------------
                                 BASE
  ---------------------------------------------------------------------------*/

typedef struct
{
    uint32_t mLen;
    uint32_t mType;        
}__attribute__ ((__packed__)) c_base;

/*-----------------------------------------------------------------------------
                                 OPEN
  ---------------------------------------------------------------------------*/

typedef struct 
{

    uint32_t mLen;
    uint32_t mType;        /* = VNSOPEN */
    uint16_t topoID;       /* Id of the topology we want to run on */
    uint16_t pad;          /* unused */
    char     mVirtualHostID[IDSIZE]; /* Id of the simulated router (e.g.
                                        'VNS-A'); */
    char     mUID[IDSIZE]; /* User id (e.g. "appenz"), for information only */
    char     mPass[IDSIZE];

}__attribute__ ((__packed__)) c_open;

/*-----------------------------------------------------------------------------
                                 CLOSE
  ---------------------------------------------------------------------------*/

typedef struct 
{

    uint32_t mLen; 
    uint32_t mType; 
    char     mErrorMessage[256];

}__attribute__ ((__packed__)) c_close;

/*-----------------------------------------------------------------------------
                                HWREQUEST 
  ---------------------------------------------------------------------------*/

typedef struct 
{

    uint32_t mLen;
    uint32_t mType; 

}__attribute__ ((__packed__)) c_hwrequest;

/*-----------------------------------------------------------------------------
                                 BANNER 
  ---------------------------------------------------------------------------*/

typedef struct 
{

    uint32_t mLen; 
    uint32_t mType; 
    char     mBannerMessage[256];

}__attribute__ ((__packed__)) c_banner;

/*-----------------------------------------------------------------------------
                               PACKET (header)
  ---------------------------------------------------------------------------*/


typedef struct
{
    uint32_t mLen;
    uint32_t mType;
    char     mInterfaceName[16];
    uint8_t  ether_dhost[6];
    uint8_t  ether_shost[6];
    uint16_t ether_type;

}__attribute__ ((__packed__)) c_packet_ethernet_header;

typedef struct
{
    uint32_t mLen;
    uint32_t mType;
    char     mInterfaceName[16];
}__attribute__ ((__packed__)) c_packet_header;

/*-----------------------------------------------------------------------------
                               HWInfo 
  ----------------------------------------------------------------------------*/

#define HWINTERFACE    1
#define HWSPEED        2
#define HWSUBNET       4
#define HWINUSE        8
#define HWFIXEDIP     16
#define HWETHER       32
#define HWETHIP       64
#define HWMASK       128

typedef struct
{
    uint32_t mKey;
    char     value[32];
}__attribute__ ((__packed__)) c_hw_entry;

typedef struct
{
#define MAXHWENTRIES 256
    uint32_t   mLen;
    uint32_t   mType;
    c_hw_entry mHWInfo[MAXHWENTRIES];
}__attribute__ ((__packed__)) c_hwinfo;


#endif  /* __VNSCOMMAND_H */