1.4 increase chunk_seq_no from 2 bytes to 4 bytes

[Li-Aaron]

Tested with pcap generated by latest spdm-emu chunk enable build.

[jyao1]

please use different size.

For example: https://github.com/DMTF/spdm-dump/pull/127/files#diff-e94f079793d1484eef202573d6c3e9067502c3e94a2635a057d624680aee1e48R1308-R1313

[Li-Aaron]

sample result:

1.3

5619 (1758595824) MCTP(6) REQ->RSP SecuredSPDM(0xffffffff, Seq=0x01d9) MCTP(5) SPDM(13, 0x86) SPDM_CHUNK_GET (Handle=0xd7, ChunkSeqNo=0x0013) 
5620 (1758595824) MCTP(6) RSP->REQ SecuredSPDM(0xffffffff, Seq=0x01da) MCTP(5) SPDM(13, 0x06) SPDM_CHUNK_RESPONSE (Attr=0x01(LastChunk), Handle=0xd7, ChunkSeqNo=0x0013, ChunkSize=0x00000009) SPDM(13, 0x02) SPDM_CERTIFICATE (SlotID=0x02, Attr=0x01(DEVICE), PortLen=0x0237, RemLen=0x0000) 

5875 (1758595825) MCTP(6) REQ->RSP SecuredSPDM(0xffffffff, Seq=0x020f) MCTP(5) SPDM(13, 0x85) SPDM_CHUNK_SEND (Attr=0x01(LastChunk), Handle=0x45, ChunkSeqNo=0x0035, ChunkSize=0x0009) SPDM(13, 0xee) SPDM_SET_CERTIFICATE (Attr=0x12(SlotID=0x02, DEVICE, Erase=00), KeyPairID=0x01)
5876 (1758595825) MCTP(6) RSP->REQ SecuredSPDM(0xffffffff, Seq=0x0210) MCTP(5) SPDM(13, 0x05) SPDM_CHUNK_SEND_ACK (Attr=0x00(), Handle=0x45, ChunkSeqNo=0x0035) SPDM(13, 0x6e) SPDM_SET_CERTIFICATE_RSP (SlotID=0x02) 

1.4

5637 (1758248639) MCTP(6) REQ->RSP SecuredSPDM(0xffffffff, Seq=0x01db) MCTP(5) SPDM(14, 0x86) SPDM_CHUNK_GET (Handle=0xdf, ChunkSeqNo=0x00000013) 
5638 (1758248639) MCTP(6) RSP->REQ SecuredSPDM(0xffffffff, Seq=0x01dc) MCTP(5) SPDM(14, 0x06) SPDM_CHUNK_RESPONSE (Attr=0x01(LastChunk), Handle=0xdf, ChunkSeqNo=0x00000013, ChunkSize=0x00000011) SPDM(14, 0x02) SPDM_CERTIFICATE (SlotID=0x02, LargeCert=0x80, Attr=0x01(DEVICE), PortLen=0x00000237, RemLen=0x00000000) 

5893 (1758248639) MCTP(6) REQ->RSP SecuredSPDM(0xffffffff, Seq=0x0211) MCTP(5) SPDM(14, 0x85) SPDM_CHUNK_SEND (Attr=0x01(LastChunk), Handle=0x45, ChunkSeqNo=0x00000035, ChunkSize=0x00000009) SPDM(14, 0xee) SPDM_SET_CERTIFICATE (Attr=0x12(SlotID=0x02, DEVICE, Erase=00), KeyPairID=0x01)
5894 (1758248639) MCTP(6) RSP->REQ SecuredSPDM(0xffffffff, Seq=0x0212) MCTP(5) SPDM(14, 0x05) SPDM_CHUNK_SEND_ACK (Attr=0x00(), Handle=0x45, ChunkSeqNo=0x00000035) SPDM(14, 0x6e) SPDM_SET_CERTIFICATE_RSP (SlotID=0x02)