Re: [PATCH v2 3/3] NFSD: Sign filehandles
From: Benjamin Coddington <hidden>
Date: 2026-01-26 18:22:56
Also in:
linux-fsdevel, linux-nfs
On 24 Jan 2026, at 14:48, Chuck Lever wrote:
I can't recall if Wireshark is smart enough to introspect Linux NFSD file handles (I thought it could). It would be sensible to have some Wireshark update code in hand before making the final decision about keeping the new auth_type.
I've gone digging and wireshark has a surprising amount of filehandle dissection code - it currently can "Decode As:" dissect_fhandle_data_SVR4 dissect_fhandle_data_LINUX_KNFSD_LE dissect_fhandle_data_LINUX_NFSD_LE dissect_fhandle_data_NETAPP dissect_fhandle_data_NETAPP_V4 dissect_fhandle_data_NETAPP_GX_v3 dissect_fhandle_data_LINUX_KNFSD_NEW dissect_fhandle_data_GLUSTER dissect_fhandle_data_DCACHE dissect_fhandle_data_PRIMARY_DATA dissect_fhandle_data_CELERRA_VNX dissect_fhandle_data_unknown .. almost all with finer grained filehandle components. I certainly can add patches to parse FH_AT_MAC for the linux(s) decoders, but I admit I don't have any use case. I'm completely neutral on keeping FH_AT_MAC at this point. Ben