From: David Ahern <dsahern@gmail.com>
To: netdev@vger.kernel.org, borkmann@iogearbox.net, ast@kernel.org
Cc: davem@davemloft.net, David Ahern <dsahern@gmail.com>
Subject: [PATCH bpf-next 0/3] bpf: Add MTU check to fib lookup helper
Date: Thu, 17 May 2018 09:09:27 -0700 [thread overview]
Message-ID: <20180517160930.25076-1-dsahern@gmail.com> (raw)
Packets that exceed the egress MTU can not be forwarded in the fast path.
Add IPv4 and IPv6 MTU helpers that take a FIB lookup result (versus the
typical dst path) and add the calls to bpf_ipv{4,6}_fib_lookup.
David Ahern (3):
net/ipv4: Add helper to return path MTU based on fib result
net/ipv6: Add helper to return path MTU based on fib result
bpf: Add mtu checking to FIB forwarding helper
include/net/ip6_fib.h | 6 ++++++
include/net/ip6_route.h | 3 +++
include/net/ip_fib.h | 2 ++
net/core/filter.c | 10 ++++++++++
net/ipv4/route.c | 31 +++++++++++++++++++++++++++++++
net/ipv6/route.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
6 files changed, 100 insertions(+)
--
2.11.0
next reply other threads:[~2018-05-17 16:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-17 16:09 David Ahern [this message]
2018-05-17 16:09 ` [PATCH bpf-next 1/3] net/ipv4: Add helper to return path MTU based on fib result David Ahern
2018-05-17 16:09 ` [PATCH bpf-next 2/3] net/ipv6: " David Ahern
2018-05-17 16:09 ` [PATCH bpf-next 3/3] bpf: Add mtu checking to FIB forwarding helper David Ahern
2018-05-17 22:22 ` Daniel Borkmann
2018-05-18 0:34 ` David Ahern
2018-05-18 14:01 ` Daniel Borkmann
2018-05-20 6:41 ` kbuild test robot
2018-05-20 11:14 ` kbuild test robot
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