linux-toradex.git/tools/testing/selftests/net/af_unix/Makefile, branch master Linux kernel for Apalis and Colibri modules selftest: Add tests for useful handling of LSM denials on SCM_RIGHTS 2026-08-18T01:14:52+00:00 Jori Koolstra jkoolstra@xs4all.nl 2026-08-14T17:28:06+00:00 5d513ce19de963c7e36904c98d7b02ecd16a30a1 Tests SCM_RIGHTS fd passing on a socket with the new socket option SO_RIGHTS_NOTRUNC turned on. To hook into the security_file_receive() call, BPF is used. The BPF program shares a hashmap with userspace that lists the inos to be blocked (of the receiver tgid). Signed-off-by: Jori Koolstra <jkoolstra@xs4all.nl> Link: https://patch.msgid.link/20260814172806.158954-1-jkoolstra@xs4all.nl Signed-off-by: Jakub Kicinski <kuba@kernel.org> 
Tests SCM_RIGHTS fd passing on a socket with the new socket option
SO_RIGHTS_NOTRUNC turned on. To hook into the security_file_receive()
call, BPF is used. The BPF program shares a hashmap with userspace that
lists the inos to be blocked (of the receiver tgid).

Signed-off-by: Jori Koolstra <jkoolstra@xs4all.nl>
Link: https://patch.msgid.link/20260814172806.158954-1-jkoolstra@xs4all.nl
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
selftests/net/af_unix: test listen() rejects wrong socket states 2026-07-24T22:10:05+00:00 John Ericson mail@johnericson.me 2026-07-18T18:29:02+00:00 7f57c650d08b8793bb551bdb33ad876535ef9fe8 Add a regression test for the unix_listen() state check. The key case is listen() on a bound socket that has already been connected: it is no longer in TCP_CLOSE or TCP_LISTEN, so it must fail with EINVAL. A prepare_peercred() call slipped in ahead of that check once left err at 0 and made listen() silently succeed there instead; this guards against a repeat. The neighbouring outcomes are covered too so they cannot regress the same way: a bound socket in TCP_CLOSE listens fine, calling listen() again on a socket already in TCP_LISTEN is allowed, and an unbound socket fails with EINVAL. Each case runs for both listenable socket types (SOCK_STREAM and SOCK_SEQPACKET) and both pathname and abstract addresses. Fixes: fd0a109a0f6b ("net, pidfs: prepare for handing out pidfds for reaped sk->sk_peer_pid") Signed-off-by: John Ericson <mail@johnericson.me> Link: https://patch.msgid.link/20260718182903.2295560-2-John.Ericson@Obsidian.Systems Signed-off-by: Jakub Kicinski <kuba@kernel.org> 
Add a regression test for the unix_listen() state check. The key case is
listen() on a bound socket that has already been connected: it is no
longer in TCP_CLOSE or TCP_LISTEN, so it must fail with EINVAL. A
prepare_peercred() call slipped in ahead of that check once left err at 0
and made listen() silently succeed there instead; this guards against a
repeat.

The neighbouring outcomes are covered too so they cannot regress the same
way: a bound socket in TCP_CLOSE listens fine, calling listen() again on a
socket already in TCP_LISTEN is allowed, and an unbound socket fails with
EINVAL.

Each case runs for both listenable socket types (SOCK_STREAM and
SOCK_SEQPACKET) and both pathname and abstract addresses.

Fixes: fd0a109a0f6b ("net, pidfs: prepare for handing out pidfds for reaped sk->sk_peer_pid")
Signed-off-by: John Ericson <mail@johnericson.me>
Link: https://patch.msgid.link/20260718182903.2295560-2-John.Ericson@Obsidian.Systems
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
selftest: af_unix: Support compilers without flex-array-member-not-at-end support 2025-12-10T09:08:51+00:00 Guenter Roeck linux@roeck-us.net 2025-12-05T17:10:00+00:00 06f7cae92fe346fa49a8a9b161124b26cc5c3ed1 Fix: gcc: error: unrecognized command-line option ‘-Wflex-array-member-not-at-end’ by making the compiler option dependent on its support. Fixes: 1838731f1072c ("selftest: af_unix: Add -Wall and -Wflex-array-member-not-at-end to CFLAGS.") Cc: Kuniyuki Iwashima <kuniyu@google.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Link: https://patch.msgid.link/20251205171010.515236-7-linux@roeck-us.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> 
Fix:

gcc: error: unrecognized command-line option ‘-Wflex-array-member-not-at-end’

by making the compiler option dependent on its support.

Fixes: 1838731f1072c ("selftest: af_unix: Add -Wall and -Wflex-array-member-not-at-end to CFLAGS.")
Cc: Kuniyuki Iwashima <kuniyu@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Link: https://patch.msgid.link/20251205171010.515236-7-linux@roeck-us.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-11-20T17:13:26+00:00 Jakub Kicinski kuba@kernel.org 2025-11-20T17:12:41+00:00 9e203721ec6117b2f4436a26662413764fd669f0 Cross-merge networking fixes after downstream PR (net-6.18-rc7). No conflicts, adjacent changes: tools/testing/selftests/net/af_unix/Makefile e1bb28bf13f4 ("selftest: af_unix: Add test for SO_PEEK_OFF.") 45a1cd8346ca ("selftests: af_unix: Add tests for ECONNRESET and EOF semantics") Signed-off-by: Jakub Kicinski <kuba@kernel.org> 
Cross-merge networking fixes after downstream PR (net-6.18-rc7).

No conflicts, adjacent changes:

tools/testing/selftests/net/af_unix/Makefile
  e1bb28bf13f4 ("selftest: af_unix: Add test for SO_PEEK_OFF.")
  45a1cd8346ca ("selftests: af_unix: Add tests for ECONNRESET and EOF semantics")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
selftest: af_unix: Add test for SO_PEEK_OFF. 2025-11-19T03:19:09+00:00 Kuniyuki Iwashima kuniyu@google.com 2025-11-17T17:47:11+00:00 e1bb28bf13f41af5d7cc48359d1755cbcda4d502 The test covers various cases to verify SO_PEEK_OFF behaviour for all AF_UNIX socket types. two_chunks_blocking and two_chunks_overlap_blocking reproduce the issue mentioned in the previous patch. Without the patch, the two tests fail: # RUN so_peek_off.stream.two_chunks_blocking ... # so_peek_off.c:121:two_chunks_blocking:Expected 'bbbb' == 'aaaabbbb'. # two_chunks_blocking: Test terminated by assertion # FAIL so_peek_off.stream.two_chunks_blocking not ok 3 so_peek_off.stream.two_chunks_blocking # RUN so_peek_off.stream.two_chunks_overlap_blocking ... # so_peek_off.c:159:two_chunks_overlap_blocking:Expected 'bbbb' == 'aaaabbbb'. # two_chunks_overlap_blocking: Test terminated by assertion # FAIL so_peek_off.stream.two_chunks_overlap_blocking not ok 5 so_peek_off.stream.two_chunks_overlap_blocking With the patch, all tests pass: # PASSED: 15 / 15 tests passed. # Totals: pass:15 fail:0 xfail:0 xpass:0 skip:0 error:0 Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20251117174740.3684604-3-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> 
The test covers various cases to verify SO_PEEK_OFF behaviour
for all AF_UNIX socket types.

two_chunks_blocking and two_chunks_overlap_blocking reproduce
the issue mentioned in the previous patch.

Without the patch, the two tests fail:

  #  RUN           so_peek_off.stream.two_chunks_blocking ...
  # so_peek_off.c:121:two_chunks_blocking:Expected 'bbbb' == 'aaaabbbb'.
  # two_chunks_blocking: Test terminated by assertion
  #          FAIL  so_peek_off.stream.two_chunks_blocking
  not ok 3 so_peek_off.stream.two_chunks_blocking

  #  RUN           so_peek_off.stream.two_chunks_overlap_blocking ...
  # so_peek_off.c:159:two_chunks_overlap_blocking:Expected 'bbbb' == 'aaaabbbb'.
  # two_chunks_overlap_blocking: Test terminated by assertion
  #          FAIL  so_peek_off.stream.two_chunks_overlap_blocking
  not ok 5 so_peek_off.stream.two_chunks_overlap_blocking

With the patch, all tests pass:

  # PASSED: 15 / 15 tests passed.
  # Totals: pass:15 fail:0 xfail:0 xpass:0 skip:0 error:0

Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20251117174740.3684604-3-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
selftests: af_unix: Add tests for ECONNRESET and EOF semantics 2025-11-18T10:33:17+00:00 Sunday Adelodun adelodunolaoluwa@yahoo.com 2025-11-13T11:28:02+00:00 45a1cd8346ca245a1ca475b26eb6ceb9d8b7c6f0 Add selftests to verify and document Linux’s intended behaviour for UNIX domain sockets (SOCK_STREAM and SOCK_DGRAM) when a peer closes. The tests verify that: 1. SOCK_STREAM returns EOF when the peer closes normally. 2. SOCK_STREAM returns ECONNRESET if the peer closes with unread data. 3. SOCK_SEQPACKET returns EOF when the peer closes normally. 4. SOCK_SEQPACKET returns ECONNRESET if the peer closes with unread data. 5. SOCK_DGRAM does not return ECONNRESET when the peer closes. This follows up on review feedback suggesting a selftest to clarify Linux’s semantics. Suggested-by: Kuniyuki Iwashima <kuniyu@google.com> Signed-off-by: Sunday Adelodun <adelodunolaoluwa@yahoo.com> Link: https://patch.msgid.link/20251113112802.44657-1-adelodunolaoluwa@yahoo.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> 
Add selftests to verify and document Linux’s intended behaviour for
UNIX domain sockets (SOCK_STREAM and SOCK_DGRAM) when a peer closes.
The tests verify that:

 1. SOCK_STREAM returns EOF when the peer closes normally.
 2. SOCK_STREAM returns ECONNRESET if the peer closes with unread data.
 3. SOCK_SEQPACKET returns EOF when the peer closes normally.
 4. SOCK_SEQPACKET returns ECONNRESET if the peer closes with unread data.
 5. SOCK_DGRAM does not return ECONNRESET when the peer closes.

This follows up on review feedback suggesting a selftest to clarify
Linux’s semantics.

Suggested-by: Kuniyuki Iwashima <kuniyu@google.com>
Signed-off-by: Sunday Adelodun <adelodunolaoluwa@yahoo.com>
Link: https://patch.msgid.link/20251113112802.44657-1-adelodunolaoluwa@yahoo.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
selftests: net: unify the Makefile formats 2025-10-06T20:14:06+00:00 Jakub Kicinski kuba@kernel.org 2025-10-03T21:01:27+00:00 f07f91a36090b54076e89b46f159ea3a4b77fb2b We get a significant number of conflicts between net and net-next because of selftests Makefile changes. People tend to append new test cases at the end of the Makefile when there's no clear sort order. Sort all networking selftests Makefiles, use the following format: VAR_NAME := \ entry1 \ entry2 \ entry3 \ # end of VAR_NAME Some Makefiles are already pretty close to this. Acked-by: Antonio Quartulli <antonio@openvpn.net> Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Acked-by: Allison Henderson <allison.henderson@oracle.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Link: https://patch.msgid.link/20251003210127.1021918-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> 
We get a significant number of conflicts between net and net-next
because of selftests Makefile changes. People tend to append new
test cases at the end of the Makefile when there's no clear sort
order. Sort all networking selftests Makefiles, use the following
format:

 VAR_NAME := \
	 entry1 \
	 entry2 \
	 entry3 \
 # end of VAR_NAME

Some Makefiles are already pretty close to this.

Acked-by: Antonio Quartulli <antonio@openvpn.net>
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Acked-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://patch.msgid.link/20251003210127.1021918-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
selftest: af_unix: Add -Wall and -Wflex-array-member-not-at-end to CFLAGS. 2025-08-13T01:01:53+00:00 Kuniyuki Iwashima kuniyu@google.com 2025-08-11T21:53:04+00:00 1838731f1072ce859ae3350547de4792f365760c -Wall and -Wflex-array-member-not-at-end caught some warnings that will be fixed in later patches. Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250811215432.3379570-2-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> 
-Wall and -Wflex-array-member-not-at-end caught some warnings that
will be fixed in later patches.

Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250811215432.3379570-2-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
selftest: af_unix: Add test for SO_INQ. 2025-07-09T01:05:26+00:00 Kuniyuki Iwashima kuniyu@google.com 2025-07-02T22:35:19+00:00 e0f60ba041a0088a48a5064583e8c36306a8f7e3 Let's add a simple test to check the basic functionality of SO_INQ. The test does the following: 1. Create socketpair in self->fd[] 2. Enable SO_INQ 3. Send data via self->fd[0] 4. Receive data from self->fd[1] 5. Compare the SCM_INQ cmsg with ioctl(SIOCINQ) Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20250702223606.1054680-8-kuniyu@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> 
Let's add a simple test to check the basic functionality of SO_INQ.

The test does the following:

  1. Create socketpair in self->fd[]
  2. Enable SO_INQ
  3. Send data via self->fd[0]
  4. Receive data from self->fd[1]
  5. Compare the SCM_INQ cmsg with ioctl(SIOCINQ)

Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250702223606.1054680-8-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
selftest: af_unix: Add msg_oob.c. 2024-06-27T10:05:00+00:00 Kuniyuki Iwashima kuniyu@amazon.com 2024-06-25T01:36:36+00:00 d098d77232c375cb2cded4a7099f0a763016ee0d AF_UNIX's MSG_OOB functionality lacked thorough testing, and we found some bizarre behaviour. The new selftest validates every MSG_OOB operation against TCP as a reference implementation. This patch adds only a few tests with basic send() and recv() that do not fail. The following patches will add more test cases for SO_OOBINLINE, SIGURG, EPOLLPRI, and SIOCATMARK. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> 
AF_UNIX's MSG_OOB functionality lacked thorough testing, and we found
some bizarre behaviour.

The new selftest validates every MSG_OOB operation against TCP as a
reference implementation.

This patch adds only a few tests with basic send() and recv() that
do not fail.

The following patches will add more test cases for SO_OOBINLINE, SIGURG,
EPOLLPRI, and SIOCATMARK.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>