pf tests: ensure temporary files end up in the atf working directory

Many of the tests create temporary files. pid files, log files, tcpdump
captures, ... We should take care to ensure they're store

pf tests: ensure temporary files end up in the atf working directory

Many of the tests create temporary files. pid files, log files, tcpdump
captures, ... We should take care to ensure they're stored in the temporary
working directory Kyua creates rather than in the root directory.

This ensures there are no conflicts between simultaneously running tests, and
also keeps the root directory clean.

MFC after: 1 month
Sponsored by: Rubicon Communications, LLC ("Netgate")

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vnet tests: check for if_bridge.ko

A number of tests create a bridge, but did not check if if_bridge.ko is loaded.

We usually get away with that, because `ifconfig bridge create` autoloads the
modu

vnet tests: check for if_bridge.ko

A number of tests create a bridge, but did not check if if_bridge.ko is loaded.

We usually get away with that, because `ifconfig bridge create` autoloads the
module, but if we run the tests in a jail (e.g. because of kyua's upcoming
execenv.jail.params feature) we can't load the module and these tests can fail.

Check if the module is loaded, skip the test if it is not.

Reviewed by: markj
MFC after: 1 week
Event: Kitchener-Waterloo Hackathon 202406
Differential Revision: https://reviews.freebsd.org/D45487

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pf tests: test double-pass codel

Build a setup where a given packet will be passed through the codel code
twice. This used to trigger issues with double-free on mtags.

Sponsored by: Rubicon Communi

pf tests: test double-pass codel

Build a setup where a given packet will be passed through the codel code
twice. This used to trigger issues with double-free on mtags.

Sponsored by: Rubicon Communications, LLC ("Netgate")

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pf tests: altq:codel_bridge requires if_bridge

Check that the bridge module is loaded before running this test.
It likely will be (as a result of running the bridge tests), but if it's
not we'll get

pf tests: altq:codel_bridge requires if_bridge

Check that the bridge module is loaded before running this test.
It likely will be (as a result of running the bridge tests), but if it's
not we'll get spurious failures.

MFC after: 3 days
Sponsored by: Rubicon Communications, LLC ("Netgate")

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pf tests: Test ALTQ on top of if_bridge

Reviewed by: donner
MFC after: 1 week
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D31676

pf tests: ALTQ priority test

Test that ALTQ can prioritise one type of traffic over another. Do this
by establishing a slow link and saturating it with ICMP echos.
When prioritised TCP connections r

pf tests: ALTQ priority test

Test that ALTQ can prioritise one type of traffic over another. Do this
by establishing a slow link and saturating it with ICMP echos.
When prioritised TCP connections reliably go through. When not
prioritised TCP connections reliably fail.

MFC after: 1 week
Sponsored by: Rubicon Communications, LLC ("Netgate")

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pf tests: test ALTQ CBQ on top of if_vlan

The main purpose of this test is to verify that we can use ALTQ on top
of if_vlan, but while we're here we also exercise the CBQ code. There's
already a bas

pf tests: test ALTQ CBQ on top of if_vlan

The main purpose of this test is to verify that we can use ALTQ on top
of if_vlan, but while we're here we also exercise the CBQ code. There's
already a basis test for HFSC, so it makes sense to test another
algorithm while we test if_vlan.

Reviewed by: donner
MFC after: 1 week
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D31649

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pf tests: Test the match keyword

The new match keyword can currently only assign queues, so we can only
test it with ALTQ.
Set up a basic scenario where we use 'match' to assign ICMP traffic to a
sl

pf tests: Test the match keyword

The new match keyword can currently only assign queues, so we can only
test it with ALTQ.
Set up a basic scenario where we use 'match' to assign ICMP traffic to a
slow queue, and confirm that it's really getting slowed down.

MFC after: 2 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D31116

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altq tests: Basic ALTQ test

Activate ALTQ_HFSC, crudely check if it really limits bandwidth as we'd expect.

Reviewed by: donner@
Differential Revision: https://reviews.freebsd.org/D28303