Messages in this thread | | | From | Jaehee <> | Date | Mon, 11 Jul 2022 16:42:06 -0700 | Subject | Re: [PATCH net-next 0/3] net: ipv4/ipv6: new option to accept garp/untracked na only if in-network |
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On Mon, Jul 11, 2022 at 10:51 AM Jaehee Park <jhpark1013@gmail.com> wrote: > > The first patch adds an option to learn a neighbor from garp only if > the src ip is in the same subnet of addresses configured on the > interface. The option has been added to arp_accept in ipv4. > > The same feature has been added to ndisc (patch 2). For ipv6, the > subnet filtering knob is an extension of the accept_untracked_na > option introduced in these patches: > https://lore.kernel.org/all/642672cb-8b11-c78f-8975-f287ece9e89e@gmail.com/t/ > https://lore.kernel.org/netdev/20220530101414.65439-1-aajith@arista.com/T/ > > The third patch contains selftests for testing the different options > for accepting arp and neighbor advertisements. > > Jaehee Park (3): > net: ipv4: new arp_accept option to accept garp only if in-network > net: ipv6: new accept_untracked_na option to accept na only if > in-network > selftests: net: arp_ndisc_untracked_subnets: test for arp_accept and > accept_untracked_na > > Documentation/networking/ip-sysctl.rst | 48 +-- > include/linux/inetdevice.h | 2 +- > net/ipv4/arp.c | 24 +- > net/ipv6/addrconf.c | 2 +- > net/ipv6/ndisc.c | 29 +- > tools/testing/selftests/net/Makefile | 1 + > .../net/arp_ndisc_untracked_subnets.sh | 281 ++++++++++++++++++ > 7 files changed, 360 insertions(+), 27 deletions(-) > create mode 100755 tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh > > -- > 2.30.2 >
I forgot a few cleanups. I will post a v2 soon. Sorry about that!
Thanks, Jaehee
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