--- Begin Message ---
Thank you.
I will file a Pull-Request.
The DOE header definition can be found
https://github.com/jyao1/openspdm/blob/master/Include/IndustryStandard/PciDoeBinding.h
It starts from PCI_DOE_DATA_OBJECT_HEADER.
> -----Original Message-----
> From: Michael Richardson <m...@sandelman.ca>
> Sent: Monday, January 25, 2021 11:21 PM
> To: Yao, Jiewen <jiewen....@intel.com>
> Cc: tcpdump-workers@lists.tcpdump.org
> Subject: Re: [tcpdump-workers] Request to add MCTP and PCI_DOE to PCAP link
> type
>
> Yao, Jiewen via tcpdump-workers <tcpdump-workers@lists.tcpdump.org> wrote:
> > Hello Any response ?
>
> > Thank you Yao Jiewen
>
> ...
> Hi, sorry abotu that.
>
> > Hi I write this email to request to below 2 link types.
>
>
> > 1. MCTP
>
> > Management Component Transport Protocol (MCTP) is an industry standard
> > defined by Distributed Management Task Force (DMTF) Platform
> Management
> > Communication Interface (PMCI) working group
> > (https://www.dmtf.org/standards/pmci)
>
> > DSP0236
> >
> (https://www.dmtf.org/sites/default/files/standards/documents/DSP0236_1.3.
> 1.pdf)
> > is the Management Component Transport Protocol (MCTP) Base
> > Specification. It defines the MCTP transport header. DSP0239
> >
> (https://www.dmtf.org/sites/default/files/standards/documents/DSP0239_1.7.
> 0.pdf)
> > defines the Management Component Transport Protocol (MCTP) IDs and
> > Codes. It defines the MCTP message type in a MCTP packet payload.
>
> > Proposal:
>
> > LINKTYPE_ name LINKTYPE_ value Corresponding DLT_ name Description
> > LINKTYPE_MCTP XXX DLT_MCTP MCTP packet is defined in DMTF PMCI
> working
> > group Management Component Transport Protocol (MCTP) Base
> >
> Specification(https://www.dmtf.org/sites/default/files/standards/documents/D
> SP0236_1.3.1.pdf)
> > 8.1 MCTP packet fields. It starts with MCTP transport header in Figure
> > 4 - Generic message fields.
>
> These descriptions look great.
> Why not follow https://github.com/the-tcpdump-
> group/libpcap/blob/master/doc/DLT_ALLOCATE_HOWTO.md
> and send a pull request?
>
> > 1. PCI_DOE
>
> > PCI Data Object Exchange (DOE) is an industry standard defined by
> > PCI-SIG (https://pcisig.com/) Data Object Exchange (DOE)
> > ECN<https://members.pcisig.com/wg/PCI-SIG/document/14143>
> > (https://members.pcisig.com/wg/PCI-SIG/document/14143).
>
> This link is behind some kind of paywall.
> Maybe there is a public definition we can refer to?
>
> > Proposal:
>
> > LINKTYPE_ name LINKTYPE_ value Corresponding DLT_ name Description
> > LINKTYPE_PCI_DOE XXX DLT_PCI_DOE PCI Data Object Exchange (DOE) is
> > defined in PCI-SIG Data Object Exchange (DOE) ECN
> > (https://members.pcisig.com/wg/PCI-SIG/document/14143) 6.xx.1 Data
> > Objects. It starts with DOE Data Object Header 1 in Figure 6-x1: DOE
> > Data Object Format.
>
>
>
> > The reason I submit this request is because we are implementing a
> > "SpdmDump" tool to dump the SPDM message defined in DMTF PMCI
> Security
> > Protocol and Data Model (SPDM) Specification DSP0274
> >
> (https://www.dmtf.org/sites/default/files/standards/documents/DSP0274_1.1.
> 0.pdf).
> > SPDM is similar to network Transport Layer Security (TLS) protocol. It
> > is a transport layer protocol. The MCTP and the PCI_DOE are the
> > transport layer binding to send message to hardware device (MCTP
> > capable device or PCI_DOE capable device).
>
> > We did a prototype for the SpdmDump tool
> > (https://github.com/jyao1/openspdm/blob/master/Doc/SpdmDump.md).
> We can
> > generate a PCAP file and parse it offline. In our prototype, we use
> > below definition: #define LINKTYPE_MCTP 290 // 0x0122 #define
> > LINKTYPE_PCI_DOE 291 // 0x0123 If you can assign same number, it will
> > be great. If different number is assigned, we will change our
> > implementation accordingly.
>
> > Thank you Yao Jiewen
>
>
>
> > _______________________________________________ tcpdump-workers
> mailing
> > list tcpdump-workers@lists.tcpdump.org
> > https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers
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