freebsd-skq

History

melifaro b17accbc49 Bring back redirect route expiration. Redirect (and temporal) route expiration was broken a while ago. This change brings route expiration back, with unified IPv4/IPv6 handling code. It introduces net.inet.icmp.redirtimeout sysctl, allowing to set an expiration time for redirected routes. It defaults to 10 minutes, analogues with net.inet6.icmp6.redirtimeout. Implementation uses separate file, route_temporal.c, as route.c is already bloated with tons of different functions. Internally, expiration is implemented as an per-rnh callout scheduled when route with non-zero rt_expire time is added or rt_expire is changed. It does not add any overhead when no temporal routes are present. Callout traverses entire routing tree under wlock, scheduling expired routes for deletion and calculating the next time it needs to be run. The rationale for such implemention is the following: typically workloads requiring large amount of routes have redirects turned off already, while the systems with small amount of routes will not inhibit large overhead during tree traversal. This changes also fixes netstat -rn display of route expiration time, which has been broken since the conversion from kread() to sysctl. Reviewed by: bz MFC after: 3 weeks Differential Revision: https://reviews.freebsd.org/D23075		2020-01-22 13:53:18 +00:00
..
etc	Add supporting changes for `Add limited sandbox capability to "make check"`	2017-08-14 19:21:37 +00:00
freebsd_test_suite	Fix sys/opencrypto/blake2_test when kern.cryptodevallowsoft=0	2018-08-16 23:49:56 +00:00
sys	Bring back redirect route expiration.	2020-01-22 13:53:18 +00:00
Kyuafile
Makefile	Use MK_CHECK_USE_SANDBOX in tests/..., to deal with the fact that	2017-08-02 22:24:08 +00:00
Makefile.depend	DIRDEPS_BUILD: Connect MK_TESTS.	2016-03-09 22:46:01 +00:00
Makefile.inc0	Use bsd.opts.mk, not src.opts.mk	2017-08-03 00:35:35 +00:00
README	Copy README into /usr/tests	2015-11-20 03:24:04 +00:00

README

src/tests: The FreeBSD test suite
=================================

To run the FreeBSD test suite:
(1)  Make sure that kyua is installed:
       pkg install kyua
(2)  To run the tests:
       kyua test -k /usr/tests/Kyuafile
(3)  To see the test results:
       kyua report  

For further information on using the test suite, read tests(7):
       man tests

Description of FreeBSD test suite
=================================
The build of the test suite is organized in the following manner:

* The build of all test artifacts is protected by the MK_TESTS knob.
  The user can disable these with the WITHOUT_TESTS setting in
  src.conf(5).

* The goal for /usr/tests/ (the installed test programs) is to follow
  the same hierarchy as /usr/src/ wherever possible, which in turn drives
  several of the design decisions described below.  This simplifies the
  discoverability of tests.  We want a mapping such as:

    /usr/src/bin/cp/      -> /usr/tests/bin/cp/
    /usr/src/lib/libc/    -> /usr/tests/lib/libc/
    /usr/src/usr.bin/cut/ -> /usr/tests/usr.bin/cut/
    ... and many more ...

* Test programs for specific utilities and libraries are located next
  to the source code of such programs.  For example, the tests for the
  src/lib/libcrypt/ library live in src/lib/libcrypt/tests/.  The tests/
  subdirectory is optional and should, in general, be avoided.

* The src/tests/ hierarchy (this directory) provides generic test
  infrastructure and glue code to join all test programs together into
  a single test suite definition.

* The src/tests/ hierarchy also includes cross-functional test programs:
  i.e. test programs that cover more than a single utility or library
  and thus don't fit anywhere else in the tree.  Consider this to follow
  the same rationale as src/share/man/: this directory contains generic
  manual pages while the manual pages that are specific to individual
  tools or libraries live next to the source code.

In order to keep the src/tests/ hierarchy decoupled from the actual test
programs being installed --which is a worthy goal because it simplifies
the addition of new test programs and simplifies the maintenance of the
tree-- the top-level Kyuafile does not know which subdirectories may
exist upfront.  Instead, such Kyuafile automatically detects, at
run-time, which */Kyuafile files exist and uses those directly.

Similarly, every directory in src/ that wants to install a Kyuafile to
just recurse into other subdirectories reuses this Kyuafile with
auto-discovery features.  As an example, take a look at src/lib/tests/
whose sole purpose is to install a Kyuafile into /usr/tests/lib/.
The goal in this specific case is for /usr/tests/lib/ to be generated
entirely from src/lib/.

-- 
$FreeBSD$