Enhancement: report file/line information for drop notifications

[julianwiedmann]

cilium/cilium#20387 introduced source file/line information for drop notifications. The PR also added cilium monitor support.

It would be great to also surface this error information in hubble.

[sadath-12]

assign me please

[Gnoale]

Hello, can you point me in the right direction / elaborate about this one ? I'd like to contribute

[Gnoale]

Something seems off in the vendor folder : it is missing a lot of files from pkg/monitor/ although the tag that is vendor into this repository has all these files, among them datapath_drop.go which hold the DropNotify struct

✔ ~/git/cilium [v1.15.3|✔] 
11:47 $ ls pkg/monitor/
agent              datapath_debug_test.go  datapath_policy_test.go      datapath_trace.go       format         types.go
alignchecker       datapath_drop.go        datapath_recorder.go         datapath_trace_test.go  logrecord.go
api                datapath_drop_test.go   datapath_sock_trace.go       dissect.go              notifications
datapath_debug.go  datapath_policy.go      datapath_sock_trace_test.go  dissect_test.go         payload

My guess is hubble should somehow build this object and so get access to the DumpInfo function to print all the information mentioned

[glibsm]

@sadath-12 are you still interested in working on this issue?