relayd: add regress coverage for client certs

From Sören Tempel

quote sudo and handle arguments

Set TCP option NODELAY in relayd and in client and server. This
speeds up transferring data and avoids to run into timeout. The
test was broken since switching to TLS 1.3 if running relayd on a
rem

Set TCP option NODELAY in relayd and in client and server. This
speeds up transferring data and avoids to run into timeout. The
test was broken since switching to TLS 1.3 if running relayd on a
remote machine. With no delay in tcp, https-multi using TLS 1.3
is slightly faster than TLS 1.2 on i386.

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update to reflect changes introduced with relayd r1.227

Allow to use $curdir, $objdir, $host, $hostname in the test config
file. They are substituted automatically, to avoid this in each
single test.

Add tests for relayd TLS inspection with plain SSL and HTTPS.

Add test cases for a crash reported by Bertrand PROVOST. When a
HTTP client writes multiple requests or chunks in a single transfer,
relayd invokes the libevent callback manually for the next data.

Add test cases for a crash reported by Bertrand PROVOST. When a
HTTP client writes multiple requests or chunks in a single transfer,
relayd invokes the libevent callback manually for the next data.
If the callback closes the session, this results in an use after
free.
Test an invalid second request method, test an invalid header line
in the second PUT request, test an invalid second chunked length
for a PUT request. Also test multiple valid HTTP 1.1 PUT requests
with chunked body.
To detect crashes of relayd, start it with "prefork 1" and grep for
"lost child" log messages. Unfortunately only the first child is
monitored by the parent.

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By now relayd expects tls in its config file and writes tls into
its log file. Change regression tests form ssl to tls.

Make the perl modules consistent for the multiple regression tests.
This includes coding style, better error messages and variable
naming.

Test relayd error message for a broken config file.

Fix the relayd regression tests. Now they pass with and without
an obj directory. The relayd process can also run on a remote
machine for different timing.

Refactors "dummyrun" flag as "dryrun" with an approach similar to the one used
for client/server processes checks through $self->{down} state control
variable, while here, do not instantiate a client

Refactors "dummyrun" flag as "dryrun" with an approach similar to the one used
for client/server processes checks through $self->{down} state control
variable, while here, do not instantiate a client when noclient is defined,
reflecting server object instantiation behaviour.

ok bluhm

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Adds $relayd->{dummyrun} and $client->{noclient} flags to relayd tests
framework. These flags can be set from test file which eases performing
dry-runs of relayd long enough to do relayd.conf parsing

Adds $relayd->{dummyrun} and $client->{noclient} flags to relayd tests
framework. These flags can be set from test file which eases performing
dry-runs of relayd long enough to do relayd.conf parsing, thus enabling the
grammar/parser-only tests. While here, fix and improves args-http-mark.pl to a
correct use-case.

ok reyk

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Extends relayd regress-tests framework to support tweaks from test-code: tables
definition on relayd.conf, customization of client/server cookies,
client/server headers and request path.

ok reyk

Add ssl tests for https chunked and https contentlength over relayd.

Allow the relayd regression tests to run the relayd on a different
host from client and server. Real TCP connections not running on
localhost provide a different timing uncovering more bugs.

Set used environment variables explicitly in makefile and use them
consistently in relayd regression test.

Ktrace the relayd during the test if the KTRACE environment variable
is set.

Add tests for relayd protocol http 1.0 and 1.1.

Add regression tests for relaying connections through relayd. This
is useful to ensure that socket splicing is working correctly.
Server, relayd, client with different config are started for each
su

Add regression tests for relaying connections through relayd. This
is useful to ensure that socket splicing is working correctly.
Server, relayd, client with different config are started for each
subtest. Data must pass unmodified.

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