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- #ifndef __brloader_packet_h
- #define __brloader_packet_h
-
- #include <assert.h>
-
- #define PACKET_ADDRESS_MAX 16
-
- struct PACKET_BUFFER;
-
- typedef void (*PACKET_COMPLETION_FUNC) (struct PACKET_BUFFER *, DWORD);
-
- #define PACKET_COMPLETE_SUCCESS 0x0000
- #define PACKET_COMPLETE_FAILURE 0x0001 // unspecified error
- #define PACKET_COMPLETE_OVERFLOW 0x0002
- #define PACKET_COMPLETE_NO_ROUTE 0x0003
-
- typedef struct PACKET_BUFFER {
- LPBYTE Data; // storage for packet data
- DWORD Start; // where the data begins
- DWORD End; // where the data ends
- DWORD Max; // the physical length of Data
- DWORD Context;
-
- // I hate to put this here, but I hate to put it elsewhere even more.
- WORD Protocol;
- WORD AddressLength;
- BYTE Address [PACKET_ADDRESS_MAX];
- PACKET_COMPLETION_FUNC CompletionFunc;
- } PACKET_BUFFER;
-
- // this is the protocol argument for msbdnOutputSendPacket
- #define PACKET_BUFFER_PROTOCOL_IP 0x0000
- #define PACKET_BUFFER_PROTOCOL_VBI_RAW 0x0001
- #define PACKET_BUFFER_PROTOCOL_DSS_ARP 0x0002
- #define PACKET_BUFFER_PROTOCOL_DSS_RAW 0x0003
- #define PACKET_BUFFER_PROTOCOL_DSS_MPT 0x0004
-
- // PACKET_BUFFER_PROTOCOL_IP
- // packet body is a full IP packet, including header and body
- // IP address should be extracted from the message body
- // address field is not used
-
- // PACKET_BUFFER_PROTOCOL_DSS_RAW
- // the address field is not used
- // the packet length must be 130 bytes.
- // the packet is a standard DSS frame: 3 bytes of header
- // and 127 bytes of payload
-
- // PACKET_BUFFER_PROTOCOL_DSS_MPT
- // the address field may or may not be specified
- // the address field is the sub-SCID ID
- // if the address is not specified, the output driver should build the
- // sub-SCID like an Ethernet MAC address. this only works for multicast packets,
- // which have a fixed, deterministic IP address to MAC address mapping.
- // if the address field exists (length is not zero), then the
- // address length must be 6 and the address must contain an MPT sub-SCID ID.
-
- static __inline void PacketBufferComplete (PACKET_BUFFER * packet, DWORD status) {
- assert (packet);
- if (packet -> CompletionFunc)
- (*packet -> CompletionFunc) (packet, status);
- }
-
- #endif // __brloader_packet_h