From: David Ahern <dsahern@gmail.com>
To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
David Ahern <dsahern@kernel.org>,
"David S . Miller" <davem@davemloft.net>,
netdev@vger.kernel.org, Michael Jeanson <mjeanson@efficios.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 0/3] l3mdev icmp error route lookup fixes
Date: Mon, 5 Oct 2020 09:30:58 -0700 [thread overview]
Message-ID: <fd970150-f214-63a3-953c-769fa2787bc0@gmail.com> (raw)
In-Reply-To: <20200925200452.2080-1-mathieu.desnoyers@efficios.com>
On 9/25/20 1:04 PM, Mathieu Desnoyers wrote:
> Hi,
>
> Here is an updated series of fixes for ipv4 and ipv6 which which ensure
> the route lookup is performed on the right routing table in VRF
> configurations when sending TTL expired icmp errors (useful for
> traceroute).
>
> It includes tests for both ipv4 and ipv6.
>
> These fixes address specifically address the code paths involved in
> sending TTL expired icmp errors. As detailed in the individual commit
> messages, those fixes do not address similar icmp errors related to
> network namespaces and unreachable / fragmentation needed messages,
> which appear to use different code paths.
>
> The main changes since the last round are updates to the selftests.
>
This looks fine to me. I noticed the IPv6 large packet test case is
failing; the fib6 tracepoint is showing the loopback as the iif which is
wrong:
ping6 8488 [004] 502.015817: fib6:fib6_table_lookup: table 255 oif 0
iif 1 proto 58 ::/0 -> 2001:db8:16:1::1/0 tos 0 scope 0 flags 0 ==> dev
lo gw :: err -113
I will dig into it later this week.
next prev parent reply other threads:[~2020-10-05 16:31 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-25 20:04 [RFC PATCH 0/3] l3mdev icmp error route lookup fixes Mathieu Desnoyers
2020-09-25 20:04 ` [RFC PATCH 1/3] ipv4/icmp: l3mdev: Perform icmp error route lookup on source device routing table (v2) Mathieu Desnoyers
2020-09-25 20:04 ` [RFC PATCH 2/3] ipv6/icmp: " Mathieu Desnoyers
2020-09-25 20:04 ` [RFC PATCH 3/3] selftests: Add VRF route leaking tests Mathieu Desnoyers
2020-10-05 16:30 ` David Ahern [this message]
2020-10-11 23:56 ` [RFC PATCH 0/3] l3mdev icmp error route lookup fixes David Ahern
2020-10-12 12:57 ` Mathieu Desnoyers
2020-10-12 13:45 ` David Ahern
2020-10-12 14:10 ` Mathieu Desnoyers
2020-10-12 14:26 ` David Ahern
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