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/*
* internalmesage.h
* Anindo banerjea (banerjea@tenet)
*/
#ifndef INTERNALMESSAGE_H
#define INTERNALMESSAGE_H
#include "internal.h"
/* Note about Dependencies in the data structures in this file and in
* the file "internal.h".
*
* Every time you add an ER you must change
* 1. RcapInternalMessage.messageLength
* 2. RcapHeader.rcap_message_length
* 3. The local copy of this with the host byte ordering
* 4. RcapInternetNSR.level_length (and the local copy)
* 5. RcapInternetNSR.er_count (and the local copy)
*
* Every time you add an NSR you must change
* 1. RcapInternalMessage.messageLength
* 2. RcapHeader.rcap_message_length ( and local copy)
* 3. RmtpHeaderRecord.level_count (and local copies )
*
*/
/*
* RcapInfo
*
* A machine-dependent representation of portions of an RCAP control
* message.
*/
typedef struct RcapInfo
{
unsigned char message_type; /* message type */
unsigned char *messageP; /* pointer to RCAP control message */
RcapHeader localHeader ; /* Rcap header copy with host byte
* ordering.
*/
unsigned char *headerP; /* pointer to RCAP header */
union {
struct establish_request {
unsigned char *headerRecordP; /* Pointer to header Record
*/
RmtpHeaderRecord localHeaderRecord;
/* Local copy of header record
* Correct host byte ordering
*/
unsigned char *nsrP; /* pointer to current NSR */
RcapInternetNSR localNSR; /* Current NSR with host byte
* ordering. This is a local
* copy so changes made have
* to be explicitly copied
* back. with hton conversions
*/
unsigned char *erP; /* pointer to current ER */
RcapInternetER localER; /* Current ER with host byte
* ordering (local copy)
*/
unsigned char *previous_erP; /* pointer to last node's ER */
RcapInternetER previous_ER; /* last node's ER with host byte
* ordering (local copy)
*/
} establish_request ;
struct establish_denied {
unsigned char *establishDeniedP;
RcapEstablishDenied localEstablishDenied;
} establish_denied ;
struct establish_accept {
unsigned char *headerRecordP; /* Pointer to header Record
*/
RmtpHeaderRecord localHeaderRecord;
/* Local copy of header record
* Correct host byte ordering
*/
unsigned char *nsrP; /* pointer to current NSR */
RcapInternetNSR localNSR; /* Current NSR with host byte
* ordering. This is a local
* copy so changes made have
* to be explicitly copied
* back. with hton conversions
*/
unsigned char *erP; /* pointer to current ER */
RcapInternetER localER; /* Current ER with host byte
* ordering (local copy)
*/
unsigned char *previous_erP; /* pointer to last node's ER */
RcapInternetER previous_ER; /* last node's ER with host byte
* ordering (local copy)
*/
} establish_accept ;
struct close_request{
unsigned char *closeRequestP;
RcapCloseRequestMess localCloseRequest;
} close_request;
struct status_request {
unsigned char *srrP; /* pointer to current status
* request record */
RcapInternetSRR localSRR;
} status_request ;
struct status_report {
unsigned char *srrP; /* pointer to current status
* request record */
RcapInternetSRR localSRR;
} status_report ;
} variant;
} RcapInfo;
/*
* RcapInternalMessage
*
* Internal message format used for communication between RCAP
* modules on a single node. This consists of the original
* RCAP message along with some parsed fields. The use of this
* type of structure is purely a performance hack.
*/
typedef struct RcapInternalMessage
{
RcapInfo info; /* info structure as defined above */
unsigned char *message; /* original RCAP message */
unsigned int messageLength; /* length of original RCAP message
*
* Warning: dependency with
* RcapHeader.rcap_message_length
* and level_length in the
* last NSR
*
*/
} RcapInternalMessage;
/*
* Function prototypes
*/
extern int
InitializeRcapInternalMessage(RcapInternalMessage *theInternalMessage,
unsigned char *message, int size);
extern void
InitializeInternetER(RcapInternalMessage *theInternalMessage, int er_number, RcapInternetER *local_ER, unsigned char **bufferP);
extern void
AddInternetER(RcapInternalMessage *theInternalMessage);
extern void
RemoveInternetER(RcapInternalMessage *theInternalMessage);
extern void
InitializeInternetSRR(RcapInternalMessage *theInternalMessage);
extern void
AddInternetSRR(RcapInternalMessage *theInternalMessage);
extern void
MakeEstablishDenied(RcapInternalMessage *theInternalMessage, unsigned short cause);
extern void
MakeCloseRequest(RcapInternalMessage *theInternalMessage, unsigned short cause, unsigned char message_type);
extern void
SendEstablishDenied(RcapInternalMessage *theInternalMessage, unsigned short upLine, unsigned short downLine, unsigned short testId, unsigned short cause);
extern void
SendStatusReport(RcapInternalMessage *theInternalMessage, unsigned short outLine, unsigned short state);
#endif INTERNALMESSAGE_H
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