lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20240914103226.71109-1-zhoufeng.zf@bytedance.com>
Date: Sat, 14 Sep 2024 18:32:24 +0800
From: Feng zhou <zhoufeng.zf@...edance.com>
To: ast@...nel.org,
	daniel@...earbox.net,
	andrii@...nel.org,
	martin.lau@...ux.dev,
	eddyz87@...il.com,
	song@...nel.org,
	yonghong.song@...ux.dev,
	john.fastabend@...il.com,
	kpsingh@...nel.org,
	sdf@...ichev.me,
	haoluo@...gle.com,
	jolsa@...nel.org,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	mykolal@...com,
	shuah@...nel.org,
	alan.maguire@...cle.com
Cc: netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	bpf@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	yangzhenze@...edance.com,
	wangdongdong.6@...edance.com,
	zhoufeng.zf@...edance.com
Subject: [PATCH bpf-next v3 0/2] Fix bpf_get/setsockopt failed when TCP over IPv4 via INET6 API

From: Feng Zhou <zhoufeng.zf@...edance.com>

When TCP over IPv4 via INET6 API, sk->sk_family is AF_INET6, but it is a v4 pkt.
inet_csk(sk)->icsk_af_ops is ipv6_mapped and use ip_queue_xmit. Some sockopt did
not take effect, such as tos.

0001: Use sk_is_inet helper to fix it.
0002: Setget_sockopt add a test for tcp over ipv4 via ipv6.

Changelog:
v2->v3: Addressed comments from Eric Dumazet
- Use sk_is_inet() helper
Details in here:
https://lore.kernel.org/bpf/CANn89i+9GmBLCdgsfH=WWe-tyFYpiO27wONyxaxiU6aOBC6G8g@mail.gmail.com/T/

v1->v2: Addressed comments from kernel test robot
- Fix compilation error
Details in here:
https://lore.kernel.org/bpf/202408152058.YXAnhLgZ-lkp@intel.com/T/

Feng Zhou (2):
  bpf: Fix bpf_get/setsockopt to tos not take effect when TCP over IPv4
    via INET6 API
  selftests/bpf: Setget_sockopt add a test for tcp over ipv4 via ipv6

 net/core/filter.c                             |  7 +++-
 .../selftests/bpf/prog_tests/setget_sockopt.c | 33 +++++++++++++++++++
 .../selftests/bpf/progs/setget_sockopt.c      | 13 ++++++--
 3 files changed, 49 insertions(+), 4 deletions(-)

-- 
2.30.2


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ