Commit Graph

61 Commits

Author SHA1 Message Date
Mark Johnston
31d81a4316 The bug caught by flock's test 16 was fixed by r268384.
MFC after:	3 days
2015-07-05 22:49:26 +00:00
Julio Merino
8e79f15196 Make cleanup routines idempotent
cleanup routines can be executed at any point during the execution of the
body, including even before the body has done any real work.  In those
cases, cleanup routines should be careful to not raise spurious errors so
as to not "override" the actual result of the test case.

This is just general good coding style but is not a problem in practice
for these specific tests.  (The way I discovered the issue, though, was
due to a regression I introduced in Kyua itself while refactoring some
internals.)

MFC after:	1 week
2015-07-04 02:22:26 +00:00
Simon J. Gerraty
bd831db65c Misc fixes from projects/bmake
Differential Revision:       D2748
Reviewed by: brooks imp
2015-06-11 21:13:05 +00:00
John Baldwin
dfa8ba12e1 Add a CHILD_REQUIRE macro similar to ATF_REQUIRE for use in child processes
of the main test process.

Differential Revision:	https://reviews.freebsd.org/D2664
Reviewed by:	ngie (previous version)
2015-06-04 21:07:27 +00:00
Enji Cooper
2cfac4737a Append to SUBDIR, not set it
Pointyhat to: ngie
2015-05-31 22:24:29 +00:00
John Baldwin
eddb85c663 Consistently only use one end of the pipe in the parent and debugger
processes and do not rely on EOF due to a close() in the debugger.

PR:		200489
Differential Revision:	https://reviews.freebsd.org/D2674
Reviewed by:	kib, ngie, rodrigc
2015-05-31 19:43:35 +00:00
John Baldwin
2f0219986c Tweak the description of when waitpid() doesn't return any status for a
non-blocking wait to avoid the word "empty".

Requested by:	ngie
2015-05-28 13:56:19 +00:00
John Baldwin
57c74f5b64 Do not allow a process to reap an orphan (a child currently being
traced by another process such as a debugger). The parent process does
need to check for matching orphan pids to avoid returning ECHILD if an
orphan has exited, but it should not return the exited status for the
child until after the debugger has detached from the orphan process
either explicitly or implicitly via wait().

Add two tests for for this case: one where the debugger is the direct
child (thus the parent has a non-empty children list) and one where
the debugger is not a direct child (so the only "child" of the parent
is the orphan).

Differential Revision:	https://reviews.freebsd.org/D2644
Reviewed by:	kib
MFC after:	2 weeks
2015-05-26 10:29:37 +00:00
John Baldwin
c209e3e2e6 Only reparent a traced process to its old parent if the tracing process is
not the old parent. Otherwise, proc_reap() will leave the zombie in place
resulting in the process' status being returned twice to its parent.

Add test cases for PT_TRACE_ME and PT_ATTACH which are fixed by
this change.

Differential Revision:	https://reviews.freebsd.org/D2594
Reviewed by:	kib
MFC after:	2 weeks
2015-05-22 11:04:54 +00:00
Enji Cooper
7afb8adff3 Move all test integration pieces for etc/ from etc/ to tests/
This is being done to fix breakage with make distribution with read-only
source trees as make distribution doesn't use make obj like building
tests/ does in all cases

Reported by: Wolfgang Zenker <wolfgang@lyxys.ka.sub.org>
Suggested by: jhb
X-MFC with: r282059
MFC after: 1 week
2015-05-18 11:02:43 +00:00
Enji Cooper
7ad92e6ab7 Fix typo. It should have been atf_tc_skip, not atf_skip
Reported by: many, Jenkins
Pointyhat to: ngie
MFC after: 4 days
2015-04-29 19:08:11 +00:00
Enji Cooper
c82b9f9234 ATF_REQUIRE_KERNEL_MODULE: use atf_skip, not ATF_REQUIRE_MSG so the testcase
no longer bombs out
PLAIN_REQUIRE_KERNEL_MODULE: use printf + _exit, no err so the testcase no
longer bombs out if it prints to stderr

MFC after: 5 days
2015-04-29 08:56:56 +00:00
Enji Cooper
941c3b8bd5 Adjust CFLAGS to find freebsd_test_suite/macros.h
MFC after: 6 days
2015-04-28 10:59:06 +00:00
Enji Cooper
e8395c4843 Use PLAIN_REQUIRE_KERNEL_MODULE to require "mqueuefs"
MFC after: 6 days
2015-04-28 10:56:59 +00:00
Enji Cooper
4e5f38d634 - Use ATF_REQUIRE_KERNEL_MDOULE to require aio(4)
- Don't use /tmp as a basis for temporary files as it's outside of the ATF
  sandbox
- Don't override MAX macro in sys/param.h

MFC after: 6 days
2015-04-28 10:53:06 +00:00
Enji Cooper
c5dfa43a6c Use ATF_REQUIRE_KERNEL_MODULE instead of aio_available function
MFC after: 6 days
2015-04-28 10:51:12 +00:00
Enji Cooper
b740c88bfb Add initial (unpolished) macros for interfacing with the FreeBSD test suite
This is very rough, but will be replaced/redesigned some time soon after I fix
the Jenkins breakage I introduced

MFC after: 6 days
2015-04-28 10:50:31 +00:00
Enji Cooper
0d405bba35 Fill in the copyright boilerplate for the test program
MFC after: 6 days
2015-04-28 10:29:42 +00:00
Enji Cooper
42484f6f69 Move tests/sys/kern/mmap_test to tests/sys/vm/mmap_test
As jhb noted, the actual mmap(2) implementation is under sys/vm, not
sys/kern/, so the correct logical place is tests/sys/vm/, not
tests/sys/kern/

X-MFC with: r282076
MFC after: 6 days
2015-04-27 17:53:09 +00:00
Enji Cooper
65221ed42e Integrate tools/regression/mmap into the FreeBSD test suite as
tests/sys/kern/mmap_test

MFC after: 1 week
2015-04-27 09:06:27 +00:00
Enji Cooper
f44eb01339 Integrate tools/regression/aio/aiotest and tools/regression/aio/kqueue into the
FreeBSD test suite as tests/sys/aio

MFC after: 1 week
2015-04-27 08:51:40 +00:00
Enji Cooper
e100f6a2fc Integrate tools/regression/mqueue into the FreeBSD test suite as
tests/sys/mqueue

MFC after: 1 week
2015-04-27 08:31:43 +00:00
Enji Cooper
3cedbec3ee Integrate tools/regression/fifo into the FreeBSD test suite as tests/sys/fifo
and tools/regression/file into the FreeBSD test suite as tests/sys/file

MFC after: 1 week
2015-04-27 08:15:17 +00:00
Enji Cooper
70598e5094 Integrate tools/regression/kqueue into the FreeBSD test suite as
tests/sys/kqueue

MFC after: 1 week
2015-04-27 07:37:48 +00:00
Enji Cooper
bbf12e6f7f Integrate tools/regression/execve into the FreeBSD test suite as
tests/sys/kern/execve

MFC after: 1 week
2015-04-27 07:22:18 +00:00
John-Mark Gurney
08fca7a56b Add some new modes to OpenCrypto. These modes are AES-ICM (can be used
for counter mode), and AES-GCM.  Both of these modes have been added to
the aesni module.

Included is a set of tests to validate that the software and aesni
module calculate the correct values.  These use the NIST KAT test
vectors.  To run the test, you will need to install a soon to be
committed port, nist-kat that will install the vectors.  Using a port
is necessary as the test vectors are around 25MB.

All the man pages were updated.  I have added a new man page, crypto.7,
which includes a description of how to use each mode.  All the new modes
and some other AES modes are present.  It would be good for someone
else to go through and document the other modes.

A new ioctl was added to support AEAD modes which AES-GCM is one of them.
Without this ioctl, it is not possible to test AEAD modes from userland.

Add a timing safe bcmp for use to compare MACs.  Previously we were using
bcmp which could leak timing info and result in the ability to forge
messages.

Add a minor optimization to the aesni module so that single segment
mbufs don't get copied and instead are updated in place.  The aesni
module needs to be updated to support blocked IO so segmented mbufs
don't have to be copied.

We require that the IV be specified for all calls for both GCM and ICM.
This is to ensure proper use of these functions.

Obtained from:	p4: //depot/projects/opencrypto
Relnotes:	yes
Sponsored by:	FreeBSD Foundation
Sponsored by:	NetGate
2014-12-12 19:56:36 +00:00
Enji Cooper
ba576ca584 Use PROGS instead of PROG and remove unnecessary SRCS?= assignment
Using PROG instead of PROGS will in cases of high -j with -DNO_ROOT cause
the PROG to show up more than once as it's handling the SCRIPTS install case
in a recursive manner, separate from the non-recursive case

After the recent batch of commits to bsd.progs.mk to fix behavior with how
variables are defaulted to, explicitly setting SRCS for a PROG is no longer
required

MFC after: 1 week
Reviewed by: asomers
Phabric: D1130
Sponsored by: EMC / Isilon Storage Division
2014-11-08 03:20:56 +00:00
Enji Cooper
57c2b728c1 Remove unused tests/lib directory
MFC after: 1 week
2014-11-03 15:40:49 +00:00
Enji Cooper
b6910d7ee5 Remove explicit KYUAFILE=yes from tests/sys/Makefile
This causes the directory traversing Kyuafile to be installed, which in turn
causes tests/sys/pjdfstest to always be run from /usr/tests/sys

Let KYUAFILE default to auto, so the file generated by suite.test.mk gets
installed instead

MFC after: 1 week
2014-11-03 09:17:09 +00:00
Enji Cooper
fa8093473b Integrate pjdfstest test suite execution into kyua
pjdfstest execution is opt-in and must be done as root due to some of the
assumptions made by the test suite and lack of error checking in the non-root
case

A description of how to execute pjdfstest with kyua is provided in
share/pjdfstest/README

Phabric: D824 (an earlier prototype patch)
MFC after: 1 month
Relnotes: yes
Sponsored by: EMC / Isilon Storage Division
2014-11-03 07:18:42 +00:00
Alan Somers
58a39d8c5b Fix source address selection on unbound sockets in the presence of multiple
fibs. Use the mbuf's or the socket's fib instead of RT_ALL_FIBS. Fixes PR
187553. Also fixes netperf's UDP_STREAM test on a nondefault fib.

sys/netinet/ip_output.c
	In ip_output, lookup the source address using the mbuf's fib instead
	of RT_ALL_FIBS.

sys/netinet/in_pcb.c
	in in_pcbladdr, lookup the source address using the socket's fib,
	because we don't seem to have the mbuf fib. They should be the same,
	though.

tests/sys/net/fibs_test.sh
	Clear the expected failure on udp_dontroute.

PR:		187553
CR:		https://reviews.freebsd.org/D772
MFC after:	3 weeks
Sponsored by:	Spectra Logic
2014-09-16 15:28:19 +00:00
Alan Somers
6addc01e8f Abort the create_socket test if socket creation fails.
MFC after:	1 week
Reported by:	Coverity
CID:		1232756
2014-09-10 14:57:26 +00:00
Alan Somers
e594026d6d Numerous small fixes, mostly suggested by Coverity.
tests/sys/kern/unix_seqpacket_test.c
	* Remove a duplicate error check in mk_pair_of_sockets
	* Always close sockets in the success path of ATF test cases.  Don't
	  bother with the error paths, because those are mostly assertions
	  anyway.  Most of these socket leaks were reported by Coverity.
	  All of them are harmless, because each ATF test case runs in its
	  own process.
	* Fix the len argument to send in shutdown_send and
	  shutdown_send_sigpipe.  The old version was using sizeof a pointer
	  instead of sizeof the char array.  Reported by Coverity.
	* Change a few ATF_CHECK to ATF_REQUIRE if the test can't reasonably
	  continue past a failure.

Reported by:	Coverity Scan
CID:		1229995, 1229991, 1229988, 1229994, 1229989, 1229992
CID:		1229993, 1229990, 1229984, 1229967, 1230005, 1229977
CID:		1229966, 1230004, 1229976
MFC after:	1 week
Sponsored by:	Spectra Logic
2014-08-20 16:59:33 +00:00
Alan Somers
2f308a343f Fix unintended KBI change from r264905. Add _fib versions of
ifa_ifwithnet() and ifa_ifwithdstaddr()  The legacy functions will call the
_fib() versions with RT_ALL_FIBS, preserving legacy behavior.

sys/net/if_var.h
sys/net/if.c
	Add legacy-compatible functions as described above.  Ensure legacy
	behavior when RT_ALL_FIBS is passed as fibnum.

sys/netinet/in_pcb.c
sys/netinet/ip_output.c
sys/netinet/ip_options.c
sys/net/route.c
sys/net/rtsock.c
sys/netinet6/nd6.c
	Call with _fib() functions if we must use a specific fib, or the
	legacy functions otherwise.

tests/sys/netinet/fibs_test.sh
tests/sys/netinet/udp_dontroute.c
	Improve the udp_dontroute test.  The bug that this test exercises is
	that ifa_ifwithnet() will return the wrong address, if multiple
	interfaces have addresses on the same subnet but with different
	fibs.  The previous version of the test only considered one possible
	failure mode: that ifa_ifwithnet_fib() might fail to find any
	suitable address at all.  The new version also checks whether
	ifa_ifwithnet_fib() finds the correct address by checking where the
	ARP request goes.

Reported by:	bz, hrs
Reviewed by:	hrs
MFC after:	1 week
X-MFC-with:	264905
Sponsored by:	Spectra Logic
2014-05-29 21:03:49 +00:00
Warner Losh
c115b8184e Remove last two NO_MAN= in the tree. In both of these cases, MAN= is
what is needed.
2014-05-10 16:38:37 +00:00
Alan Somers
368f6e2f2f Add regression test for PR kern/189088.
PR:		kern/189088
MFC after:	3 weeks
Sponsored by:	Spectra Logic
2014-04-29 15:12:23 +00:00
Alan Somers
7278b62aee Fix a panic when removing an IP address from an interface, if the same address
exists on another interface.  The panic was introduced by change 264887, which
changed the fibnum parameter in the call to rtalloc1_fib() in
ifa_switch_loopback_route() from RT_DEFAULT_FIB to RT_ALL_FIBS.  The solution
is to use the interface fib in that call.  For the majority of users, that will
be equivalent to the legacy behavior.

PR:		kern/189089
Reported by:	neel
Reviewed by:	neel
MFC after:	3 weeks
X-MFC with:	264887
Sponsored by:	Spectra Logic
2014-04-29 14:46:45 +00:00
Alan Somers
70e42e1dd7 Style fixes, mostly trailing whitespace elimination. No functional change.
Reported by:	pho
MFC after:	3 weeks
2014-04-25 14:35:30 +00:00
Alan Somers
0cfee0c223 Fix subnet and default routes on different FIBs on the same subnet.
These two bugs are closely related.  The root cause is that ifa_ifwithnet
does not consider FIBs when searching for an interface address.

sys/net/if_var.h
sys/net/if.c
	Add a fib argument to ifa_ifwithnet and ifa_ifwithdstadddr.  Those
	functions will only return an address whose interface fib equals the
	argument.

sys/net/route.c
	Update calls to ifa_ifwithnet and ifa_ifwithdstaddr with fib
	arguments.

sys/netinet/in.c
	Update in_addprefix to consider the interface fib when adding
	prefixes.  This will prevent it from not adding a subnet route when
	one already exists on a different fib.

sys/net/rtsock.c
sys/netinet/in_pcb.c
sys/netinet/ip_output.c
sys/netinet/ip_options.c
sys/netinet6/nd6.c
	Add RT_DEFAULT_FIB arguments to ifa_ifwithdstaddr and ifa_ifwithnet.
	In some cases it there wasn't a clear specific fib number to use.
	In others, I was unable to test those functions so I chose
	RT_DEFAULT_FIB to minimize divergence from current behavior.  I will
	fix some of the latter changes along with PR kern/187553.

tests/sys/netinet/fibs_test.sh
tests/sys/netinet/udp_dontroute.c
tests/sys/netinet/Makefile
	Revert r263738.  The udp_dontroute test was right all along.
	However, bugs kern/187550 and kern/187553 cancelled each other out
	when it came to this test.  Because of kern/187553, ifa_ifwithnet
	searched the default fib instead of the requested one, but because
	of kern/187550, there was an applicable subnet route on the default
	fib.  The new test added in r263738 doesn't work right, however.  I
	can verify with dtrace that ifa_ifwithnet returned the wrong address
	before I applied this commit, but route(8) miraculously found the
	correct interface to use anyway.  I don't know how.

	Clear expected failure messages for kern/187550 and kern/187552.

PR:		kern/187550
PR:		kern/187552
Reviewed by:	melifaro
MFC after:	3 weeks
Sponsored by:	Spectra Logic
2014-04-24 23:56:56 +00:00
Alan Somers
0489b8916e Fix host and network routes for new interfaces when net.add_addr_allfibs=0
sys/net/route.c
	In rtinit1, use the interface fib instead of the process fib.  The
	latter wasn't very useful because ifconfig(8) is usually invoked
	with the default process fib.  Changing ifconfig(8) to use setfib(2)
	would be redundant, because it already sets the interface fib.

tests/sys/netinet/fibs_test.sh
	Clear the expected ATF failure

sys/net/if.c
	Pass the interface fib in calls to rtrequest1_fib and rtalloc1_fib

sys/netinet/in.c
sys/net/if_var.h
	Add a fibnum argument to ifa_switch_loopback_route, a subroutine of
	in_scrubprefix.  Pass it the interface fib.

PR:		kern/187549
Reviewed by:	melifaro
MFC after:	3 weeks
Sponsored by:	Spectra Logic Corporation
2014-04-24 17:23:16 +00:00
Julio Merino
3be7751dca Fix variable type to avoid printf formatter warning.
This fixes the build under powerpc64 where gcc complains about a mismatch
between a %zd printf formatter and an int variable passed to it.
2014-04-04 18:10:11 +00:00
Alan Somers
743c072a09 Correct ARP update handling when the routes for network interfaces are
restricted to a single FIB in a multifib system.

Restricting an interface's routes to the FIB to which it is assigned (by
setting net.add_addr_allfibs=0) causes ARP updates to fail with "arpresolve:
can't allocate llinfo for x.x.x.x".  This is due to the ARP update code hard
coding it's lookup for existing routing entries to FIB 0.

sys/netinet/in.c:
	When dealing with RTM_ADD (add route) requests for an interface, use
	the interface's assigned FIB instead of the default (FIB 0).

sys/netinet/if_ether.c:
	In arpresolve(), enhance error message generated when an
	lla_lookup() fails so that the interface causing the error is
	visible in logs.

tests/sys/netinet/fibs_test.sh
	Clear ATF expected error.

PR:		kern/167947
Submitted by:	Nikolay Denev <ndenev@gmail.com> (previous version)
Reviewed by:	melifaro
MFC after:	3 weeks
Sponsored by:	Spectra Logic Corporation
2014-03-26 22:46:03 +00:00
Alan Somers
55a76bf7ff tests/sys/netinet/Makefile
tests/sys/netinet/fibs.sh
	Replace fibs:udp_dontroute with fibs:src_addr_selection_by_subnet.
	The original test was poorly written; it was actually testing
	kern/167947 instead of the desired kern/187553.  The root cause of the
	bug is that ifa_ifwithnet did not have a fib argument.  The new test
	more directly targets that behavior.

tests/sys/netinet/udp_dontroute.c
	Delete the auxilliary binary used by the old test

PR:		kern/187553
MFC after:	3 weeks
Sponsored by:	Spectra Logic Corporation
2014-03-25 15:03:08 +00:00
Alan Somers
f227705fdb Add several ATF tests that deal with multiple fibs. They're described in
several different PRs, but the tests share some common code, so I'm
committing them together.

sbin/ifconfig/tests
sbin/ifconfig/tests/fibs_test.sh
sbin/ifconfig/tests/Makefile
sbin/ifconfig/Makefile
	Add fibs_test.sh, which regresses bin/187551

tests/sys/netinet
tests/sys/netinet/fibs_test.sh
tests/sys/netinet/udp_dontroute.c
tests/sys/netinet/Makefile
tests/sys/Makefile
	Add fibs_test.sh, which regresses kern/167947, kern/187552
	kern/187549, kern/187550, and kern/187553

etc/mtree/BSD.tests.dist
	Add newly created directories

PR:		bin/187551
PR:		kern/167947
PR:		kern/187552
PR:		kern/187549
PR:		kern/187550
PR:		kern/187553
Discussed with:	melifaro
MFC after:	3 weeks
Sponsored by:	Spectra Logic Corporation
2014-03-20 20:39:41 +00:00
Peter Holm
a31faec3d1 Added sysctl kern.maxfiles increase test, do not use /etc/passwd for tests
and use volatile sig_atomic_t for signal handler variable.

Reviewed by:	 asomers (previous version)
Sponsored by:	EMC / Isilon storage division
2014-03-19 09:41:12 +00:00
Julio Merino
f5fd950e35 Make bsd.test.mk the only public mk fragment for the building of tests.
Change {atf,plain,tap}.test.mk to be internal implementation details of
bsd.test.mk.  Makefiles that build tests should now only include bsd.test.mk
and declaratively specify what they want to build, without worrying about
the internal implementation of the mk files.

The reason for this change is to permit building test programs of different
interfaces from a single directory, which is something I had a need for
while porting tests over from src/tools/regression/.

Additionally, this change makes it possible to perform some other requested
changes to bsd.test.mk in an easier manner.  Coming soon.
2014-03-14 08:56:19 +00:00
Alan Somers
c2090e73d7 Replace 4.4BSD Lite's unix domain socket backpressure hack with a cleaner
mechanism, based on the new SB_STOP sockbuf flag.  The old hack dynamically
changed the sending sockbuf's high water mark whenever adding or removing
data from the receiving sockbuf.  It worked for stream sockets, but it never
worked for SOCK_SEQPACKET sockets because of their atomic nature.  If the
sockbuf was partially full, it might return EMSGSIZE instead of blocking.

The new solution is based on DragonFlyBSD's fix from commit
3a6117bbe0ed6a87605c1e43e12a1438d8844380 on 2008-05-27.  It adds an SB_STOP
flag to sockbufs.  Whenever uipc_send surpasses the socket's size limit, it
sets SB_STOP on the sending sockbuf.  sbspace() will then return 0 for that
sockbuf, causing sosend_generic and friends to block.  uipc_rcvd will
likewise clear SB_STOP.  There are two fringe benefits: uipc_{send,rcvd} no
longer need to call chgsbsize() on every send and receive because they don't
change the sockbuf's high water mark.  Also, uipc_sense no longer needs to
acquire the UIPC linkage lock, because it's simpler to compute the
st_blksizes.

There is one drawback: since sbspace() will only ever return 0 or the
maximum, sosend_generic will allow the sockbuf to exceed its nominal maximum
size by at most one packet of size less than the max.  I don't think that's
a serious problem.  In fact, I'm not even positive that FreeBSD guarantees a
socket will always stay within its nominal size limit.

sys/sys/sockbuf.h
	Add the SB_STOP flag and adjust sbspace()

sys/sys/unpcb.h
	Delete the obsolete unp_cc and unp_mbcnt fields from struct unpcb.

sys/kern/uipc_usrreq.c
	Adjust uipc_rcvd, uipc_send, and uipc_sense to use the SB_STOP
	backpressure mechanism.  Removing obsolete unpcb fields from
	db_show_unpcb.

tests/sys/kern/unix_seqpacket_test.c
	Clear expected failures from ATF.

Obtained from:	DragonFly BSD
PR:		kern/185812
Reviewed by:	silence from freebsd-net@ and rwatson@
MFC after:	3 weeks
Sponsored by:	Spectra Logic Corporation
2014-03-13 18:42:12 +00:00
Alan Somers
5d5b721a4d kern/Makefile
Set WARNS=5 for all files in this directory

kern/unix_seqpacket_test.c
	Fix compiler warnings.  Most were benign, but rcvbuf_oversized
	wasn't working as intended because I forgot to set the buffer sizes.

MFC after:	2 weeks
Reported by:	pho
Sponsored by:	Spectra Logic Corporation
2014-03-07 19:30:03 +00:00
Alan Somers
b3a67a4242 Only use -lpthread for unix_seqpacket_test, not for all test programs.
Reported by:	Garrett Cooper
MFC after:	3 weeks
Sponsored by:	Spectra Logic Corporation
2014-03-06 20:39:56 +00:00
Alan Somers
8de34a88de Fix PR kern/185813 "SOCK_SEQPACKET AF_UNIX sockets with asymmetrical
buffers drop packets".  It was caused by a check for the space available
in a sockbuf, but it was checking the wrong sockbuf.

sys/sys/sockbuf.h
sys/kern/uipc_sockbuf.c
    Add sbappendaddr_nospacecheck_locked(), which is just like
    sbappendaddr_locked but doesn't validate the receiving socket's
    space.  Factor out common code into sbappendaddr_locked_internal().
    We shouldn't simply make sbappendaddr_locked check the space and
    then call sbappendaddr_nospacecheck_locked, because that would cause
    the O(n) function m_length to be called twice.

sys/kern/uipc_usrreq.c
    Use sbappendaddr_nospacecheck_locked for SOCK_SEQPACKET sockets,
    because the receiving sockbuf's size limit is irrelevant.

tests/sys/kern/unix_seqpacket_test.c
    Now that 185813 is fixed, pipe_128k_8k fails intermittently due to
    185812.  Make it fail every time by adding a usleep after starting
    the writer thread and before starting the reader thread in
    test_pipe.  That gives the writer time to fill up its send buffer.
    Also, clear the expected failure message due to 185813.  It actually
    said "185812", but that was a typo.

PR:		kern/185813
Reviewed by:	silence from freebsd-net@ and rwatson@
MFC after:	3 weeks
Sponsored by:	Spectra Logic Corporation
2014-03-06 20:24:15 +00:00