tools/testing/selftests/net/forwarding/tc_chains.sh

Source file repositories/reference/linux-study-clean/tools/testing/selftests/net/forwarding/tc_chains.sh

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/net/forwarding/tc_chains.sh
Extension
.sh
Size
4945 bytes
Lines
206
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: tools
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0

ALL_TESTS="unreachable_chain_test gact_goto_chain_test create_destroy_chain \
	   template_filter_fits"
NUM_NETIFS=2
source tc_common.sh
source lib.sh

tcflags="skip_hw"

h1_create()
{
	simple_if_init $h1 192.0.2.1/24
}

h1_destroy()
{
	simple_if_fini $h1 192.0.2.1/24
}

h2_create()
{
	simple_if_init $h2 192.0.2.2/24
	tc qdisc add dev $h2 clsact
}

h2_destroy()
{
	tc qdisc del dev $h2 clsact
	simple_if_fini $h2 192.0.2.2/24
}

unreachable_chain_test()
{
	RET=0

	tc filter add dev $h2 ingress chain 1 protocol ip pref 1 handle 1101 \
		flower $tcflags dst_mac $h2mac action drop

	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
		-t ip -q

	tc_check_packets "dev $h2 ingress" 1101 1
	check_fail $? "matched on filter in unreachable chain"

	tc filter del dev $h2 ingress chain 1 protocol ip pref 1 handle 1101 \
		flower

	log_test "unreachable chain ($tcflags)"
}

gact_goto_chain_test()
{
	RET=0

	tc filter add dev $h2 ingress chain 1 protocol ip pref 1 handle 1101 \
		flower $tcflags dst_mac $h2mac action drop
	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
		$tcflags dst_mac $h2mac action drop
	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
		$tcflags dst_mac $h2mac action goto chain 1

	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
		-t ip -q

	tc_check_packets "dev $h2 ingress" 102 1
	check_fail $? "Matched on a wrong filter"

	tc_check_packets "dev $h2 ingress" 101 1

Annotation

Implementation Notes