+vpp-dev <vpp-dev@lists.fd.io> is the list for VPP development topics. You have a better chance of engagement compared to mailing me directly, and responses will be publicly visible to others later.
Linux CP is a part of mainline VPP (https://gerrit.fd.io/r/c/vpp/+/31122) as of the 21.10 release. The Netlink Listener VPP plugin gets the messages from the kernel, after they are sourced by the upstream userspace process (so the flow in the case of FRR is protocol daemon(s) -> zebra -> (FPM) -> kernel -> (netlink) -> VPP). There is no reason why you would not add other types of netlink messages, if your usecase requires it. If you can source your netlink messages in FRR with dplane_fpm_nl (the netlink emitter in FRR, see https://docs.frrouting.org/en/latest/zebra.html), and add register a callback for that type in lcp_router.c, see const nl_vft_t lcp_router_vft at the bottom of that file which registers the callbacks in lcp_router_init(). One last comment -- lcpng is structured a bit differently, but I do not recommend you use that codebase as it's not a part of VPP and I offer no support for it, as noted at the top of the README.md in the github repo :) groet, Pim On Mon, Apr 25, 2022 at 12:14 PM 💫 <1843613...@qq.com> wrote: > I am using the lcpng recently, and have some questions about the netlink > listenner: > I want to change the struct of the NEWROUT msg in FRR(or just add a type > of new msg), so I want to know where or when the "netlink listenner" get > the netlink msg, before the kernel get the msg or after the kernel process > the msg and forward to the listenner? > Does the lcpng can work well, if I add a type of new netlink msg in FRR > and a function to process the msg in lcpng (dispatch...)? > Thanks for reading, and looking forward to your reply. :) > -- Pim van Pelt <p...@ipng.nl> PBVP1-RIPE - http://www.ipng.nl/
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