From: Martynas Pumputis <m@lambda.lt>
To: bpf@vger.kernel.org
Cc: Daniel Borkmann <daniel@iogearbox.net>,
netdev@vger.kernel.org, Martin KaFai Lau <martin.lau@linux.dev>,
Nikolay Aleksandrov <razor@blackwall.org>,
Martynas Pumputis <m@lambda.lt>
Subject: [PATCH bpf v3 0/2] bpf: Fix src IP addr related limitation in bpf_*_fib_lookup()
Date: Sat, 7 Oct 2023 10:14:13 +0200 [thread overview]
Message-ID: <20231007081415.33502-1-m@lambda.lt> (raw)
The patchset fixes the limitation of bpf_*_fib_lookup() helper, which
prevents it from being used in BPF dataplanes with network interfaces
which have more than one IP addr. See the first patch for more details.
Thanks!
* v2->v3: Address Martin KaFai Lau's feedback
* v1->v2: Use IPv6 stubs to fix compilation when CONFIG_IPV6=m.
Martynas Pumputis (2):
bpf: Derive source IP addr via bpf_*_fib_lookup()
selftests/bpf: Add BPF_FIB_LOOKUP_SET_SRC tests
include/uapi/linux/bpf.h | 9 +++
net/core/filter.c | 13 +++-
tools/include/uapi/linux/bpf.h | 10 +++
.../selftests/bpf/prog_tests/fib_lookup.c | 76 +++++++++++++++++--
4 files changed, 101 insertions(+), 7 deletions(-)
--
2.42.0
next reply other threads:[~2023-10-07 8:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-07 8:14 Martynas Pumputis [this message]
2023-10-07 8:14 ` [PATCH bpf v3 1/2] bpf: Derive source IP addr via bpf_*_fib_lookup() Martynas Pumputis
2023-10-07 8:14 ` [PATCH bpf v3 2/2] selftests/bpf: Add BPF_FIB_LOOKUP_SRC tests Martynas Pumputis
2023-10-09 23:50 ` [PATCH bpf v3 0/2] bpf: Fix src IP addr related limitation in bpf_*_fib_lookup() patchwork-bot+netdevbpf
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