tests: kern: add some tests for recently added logsigexit

We don't bother tweaking the sysctl in these tests, we'll just try with
it forced both on and off via proccontrol(1). This could be problem

tests: kern: add some tests for recently added logsigexit

We don't bother tweaking the sysctl in these tests, we'll just try with
it forced both on and off via proccontrol(1). This could be problematic
in the face of pid wrapping if we got really unfortunate, but the
potential solutions need careful consideration- you probably don't want
to assume a certain velocity of messages into syslog, so just checking
the last N lines is probably similarly flakey.

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tests: Add regression test for ppoll() / pselect() race.

These tests demonstrate the bug that was fixed in ccb973da1f1b.

Sponsored by: Klara, Inc.
Sponsored by: NetApp, Inc.
Reviewed by: markj
Diff

tests: Add regression test for ppoll() / pselect() race.

These tests demonstrate the bug that was fixed in ccb973da1f1b.

Sponsored by: Klara, Inc.
Sponsored by: NetApp, Inc.
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D47738

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tests: Switch sys/kern/sysctl_security_jail_children to execenv=jail

Kyua skips tests based on the jail execution environment if a system is
built WITHOUT_JAIL. Thus, the test case does not need to

tests: Switch sys/kern/sysctl_security_jail_children to execenv=jail

Kyua skips tests based on the jail execution environment if a system is
built WITHOUT_JAIL. Thus, the test case does not need to handle it.

Reviewed by: markj
Approved by: markj (mentor)
Differential Revision: https://reviews.freebsd.org/D47105

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tests: kern: add some porch(1)-based tty tests

If sysutils/porch is installed, we'll do some basic testing of tty
behavior. The existing tests primarily cover ICANON-related processing
and corner c

tests: kern: add some porch(1)-based tty tests

If sysutils/porch is installed, we'll do some basic testing of tty
behavior. The existing tests primarily cover ICANON-related processing
and corner cases that have been fixed somewhat recently, but I
anticipate growing this out a bit in due time.

Reviewed by: ngie
Differential Revision: https://reviews.freebsd.org/D46806

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tests: Add some test cases for SO_SPLICE

Reviewed by: gallatin
MFC after: 3 months
Sponsored by: Klara, Inc.
Sponsored by: Stormshield
Differential Revision: https://reviews.freebsd.org/D46412

Remove residual blank line at start of Makefile

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

socket tests: Serialize sonewconn_overflow

It relies on being able inspect the dmesg buffer to see whether the
kernel logged certain messages. If it's interleaved with tests that
generate large amo

socket tests: Serialize sonewconn_overflow

It relies on being able inspect the dmesg buffer to see whether the
kernel logged certain messages. If it's interleaved with tests that
generate large amounts of console output (e.g., GELI tests), then it can
fail spuriously.

MFC after: 2 weeks

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tests/unix_stream: test that send(2) of zero bytes is successful

Put this simple test into an existing file. We don't have a designated
file for all unix/stream tests. There is extensive unix_seqp

tests/unix_stream: test that send(2) of zero bytes is successful

Put this simple test into an existing file. We don't have a designated
file for all unix/stream tests. There is extensive unix_seqpacket_test,
but (at least right now) unix/seqpacket is not a superset of unix/stream,
but a different implementation. We have one file that does one test for
unix/stream - unix_socketpair_test. So rename it to unix_stream and start
collecting all unix/stream tests in it.

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tests: Add ktrace capability violation test cases

Introduce regression tests for ktrace(2) that target capability
violations.

These test cases ensure that ktrace(2) records these violations:
- CAPF

tests: Add ktrace capability violation test cases

Introduce regression tests for ktrace(2) that target capability
violations.

These test cases ensure that ktrace(2) records these violations:
- CAPFAIL_NOTCAPABLE
- CAPFAIL_INCREASE
- CAPFAIL_SYSCALL
- CAPFAIL_SIGNAL
- CAPFAIL_PROTO
- CAPFAIL_SOCKADDR
- CAPFAIL_NAMEI
- CAPFAIL_CPUSET

A portion of these test cases create processes that do NOT enter
capability mode, but raise violations. This is intended behavior.
Users may run `ktrace -t p` on non-Capsicumized programs to detect
violations that would occur if the process were in capability mode.

Reviewed by: markj
Approved by: markj (mentor)
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D40682

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socket tests: add listener_wakeup

This test runs several scenarios when sleep(9) on a listen(2)ing socket is
interrupted by shutdown(2) or by close(2). What should happen in that
case is not specif

socket tests: add listener_wakeup

This test runs several scenarios when sleep(9) on a listen(2)ing socket is
interrupted by shutdown(2) or by close(2). What should happen in that
case is not specified, neither is documented. However, there is certain
behavior that we have and this test makes sure it is preserved. There is
software that relies on it, see bug 227259. This test is based on
submission with this bug, bugzilla attachment 192260.

The test checks TCP and unix(4) stream socket behavior and SCTP can be
added easily if needed.

The test passes on FreeBSD 11 to 15. It won't pass on FreeBSD 10,
although the wakeup behavior of shutdown(2) is the same, but it doesn't
return error.

PR: 227259

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jail: expose children.max and children.cur via sysctl

Submitted by: Igor Ostapenko <igor.ostapenko_pm.me>
Differential Revision: <https://reviews.freebsd.org/D43565>

kern: pts: do not special case closed slave side

This would previously return 1 if the slave side of the pts was closed
to force an application to read() from it and observe the EOF, but it's
not cl

kern: pts: do not special case closed slave side

This would previously return 1 if the slave side of the pts was closed
to force an application to read() from it and observe the EOF, but it's
not clear why and this is inconsistent both with how we handle devices
with similar mechanics (like pipes) and also with other kernels, such as
OpenBSD/NetBSD and Linux.

PR: 239604
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D43457

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tests: add a test for shutdown(2) on a datagram socket

socket tests: add socket_accept

Start with most basic functionality on a TCP socket.

tests: Test that SIGSYS is not delivered if kern.signosys knob is off

Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D41979
MFC after: 1 week

SIGSYS: add tests

Reviewed by: dchagin, markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D41976

socket tests: Add a regression test for MSG_WAITALL

PR: 212716
MFC after: 1 week
Sponsored by: The FreeBSD Foundation

Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

ktls_test: specify OpenSSL 1.1 API

Reviewed by: emaste
Sponsored by: The FreeBSD Foundation

ktls_test: Add debug option to hexdump keys, nonces, and buffers.

Reviewed by: markj
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D37509

tests/socket: add accept_filter(9) test

Test basic functionality of accf_data(9) and accf_http(9)

sockets: add MSG_TRUNC flag handling for recvfrom()/recvmsg().

Implement Linux-variant of MSG_TRUNC input flag used in recv(), recvfrom() and recvmsg().
Posix defines MSG_TRUNC as an output flag, in

sockets: add MSG_TRUNC flag handling for recvfrom()/recvmsg().

Implement Linux-variant of MSG_TRUNC input flag used in recv(), recvfrom() and recvmsg().
Posix defines MSG_TRUNC as an output flag, indicating packet/datagram truncation.
Linux extended it a while (~15+ years) ago to act as input flag,
resulting in returning the full packet size regarless of the input
buffer size.
It's a (relatively) popular pattern to do recvmsg( MSG_PEEK | MSG_TRUNC) to get the
packet size, allocate the buffer and issue another call to fetch the packet.
In particular, it's popular in userland netlink code, which is the primary driving factor of this change.

This commit implements the MSG_TRUNC support for SOCK_DGRAM sockets (udp, unix and all soreceive_generic() users).

PR: kern/176322
Reviewed by: pauamma(doc)
Differential Revision: https://reviews.freebsd.org/D35909
MFC after: 1 month

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tests/unix_passfd: compile SOCK_STREAM and SOCK_DGRAM versions

Most test pass identically on different kinds of sockets. However,
few edge cases work differently on stream and datagram sockets. We
w

tests/unix_passfd: compile SOCK_STREAM and SOCK_DGRAM versions

Most test pass identically on different kinds of sockets. However,
few edge cases work differently on stream and datagram sockets. We
want to exercise this and document.

Differential revision: https://reviews.freebsd.org/D35420

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tests/unix_passfd: Prevent running them in parallel

Only the send_and_shutdown test is exclusive, but kyua doesn't allow
to prevent parallel execution of a single test.

Approved by: glebius
Sponsor

tests/unix_passfd: Prevent running them in parallel

Only the send_and_shutdown test is exclusive, but kyua doesn't allow
to prevent parallel execution of a single test.

Approved by: glebius
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D35260

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Prevent running sigwait tests in parallel

test_sig_discard_ign_* could not run at the same time.

Approved by: dchagin
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D35236