On Tue, 16 Jun 2026 13:32:28 +0100 Bruce Richardson <[email protected]> wrote:
> On Tue, Jun 09, 2026 at 02:02:02PM -0700, Stephen Hemminger wrote: > > Add rte_telemetry_register_cmd_fd_arg() to register a command whose > > callback also receives file descriptors passed by the client as > > SCM_RIGHTS ancillary data. The callback owns the descriptors and must > > close them. > > > > This lets a client open a file itself and hand the descriptor to the > > primary process, so DPDK never opens the path. That avoids path and > > permission problems and works across container filesystem namespaces. > > > > Existing commands and clients are unaffected. If unsolicited file > > descriptor is passed, it is closed. > > > > This scheme seems reasonable in general. My only concern is whether the > lack of potential windows support is an issue? For regular telemetry, there > was always the option of a windows implementation using regular > TCP/UDP/SCTP sockets bound to localhost. However, AFAIK there is no windows > implementation of anything that supports file descriptors or handles > between processes. > > Some other pieces of feedback inline below. > > /Bruce I have new version (testing) that passes filename as parameter. That should work without the fd passing.
