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linux/tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json
Pedro Tammela 2945ff733d selftests/tc-testing: Add a test for HFSC eltree double add with reentrant enqueue behaviour on netem 
Reproduce the UAF scenario where netem is a child of HFSC and HFSC
is configured to use the eltree. In such case, this TDC test would
cause the HFSC class to be added to the eltree twice resulting
in a UAF.

Reviewed-by: Victor Nogueira <victor@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Link: https://patch.msgid.link/20250522181448.1439717-3-pctammela@mojatatu.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-05-28 08:55:35 +02:00

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[
{
"id": "ca5e",
"name": "Check class delete notification for ffff:",
"category": [
"qdisc"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY root handle 1: drr",
"$TC filter add dev $DUMMY parent 1: basic classid 1:1",
"$TC class add dev $DUMMY parent 1: classid 1:1 drr",
"$TC qdisc add dev $DUMMY parent 1:1 handle ffff: drr",
"$TC filter add dev $DUMMY parent ffff: basic classid ffff:1",
"$TC class add dev $DUMMY parent ffff: classid ffff:1 drr",
"$TC qdisc add dev $DUMMY parent ffff:1 netem delay 1s",
"ping -c1 -W0.01 -I $DUMMY 10.10.10.1 || true",
"$TC class del dev $DUMMY classid ffff:1",
"$TC class add dev $DUMMY parent ffff: classid ffff:1 drr"
],
"cmdUnderTest": "ping -c1 -W0.01 -I $DUMMY 10.10.10.1",
"expExitCode": "1",
"verifyCmd": "$TC -s qdisc ls dev $DUMMY",
"matchPattern": "drr 1: root",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY root handle 1: drr",
"$IP addr del 10.10.10.10/24 dev $DUMMY"
]
},
{
"id": "e4b7",
"name": "Check class delete notification for root ffff:",
"category": [
"qdisc"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY root handle ffff: drr",
"$TC filter add dev $DUMMY parent ffff: basic classid ffff:1",
"$TC class add dev $DUMMY parent ffff: classid ffff:1 drr",
"$TC qdisc add dev $DUMMY parent ffff:1 netem delay 1s",
"ping -c1 -W0.01 -I $DUMMY 10.10.10.1 || true",
"$TC class del dev $DUMMY classid ffff:1",
"$TC class add dev $DUMMY parent ffff: classid ffff:1 drr"
],
"cmdUnderTest": "ping -c1 -W0.01 -I $DUMMY 10.10.10.1",
"expExitCode": "1",
"verifyCmd": "$TC qdisc ls dev $DUMMY",
"matchPattern": "drr ffff: root",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY root handle ffff: drr",
"$IP addr del 10.10.10.10/24 dev $DUMMY"
]
},
{
"id": "33a9",
"name": "Check ingress is not searchable on backlog update",
"category": [
"qdisc"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY ingress",
"$TC qdisc add dev $DUMMY root handle 1: drr",
"$TC filter add dev $DUMMY parent 1: basic classid 1:1",
"$TC class add dev $DUMMY parent 1: classid 1:1 drr",
"$TC qdisc add dev $DUMMY parent 1:1 handle 2: drr",
"$TC filter add dev $DUMMY parent 2: basic classid 2:1",
"$TC class add dev $DUMMY parent 2: classid 2:1 drr",
"$TC qdisc add dev $DUMMY parent 2:1 netem delay 1s",
"ping -c1 -W0.01 -I $DUMMY 10.10.10.1 || true"
],
"cmdUnderTest": "$TC class del dev $DUMMY classid 2:1",
"expExitCode": "0",
"verifyCmd": "$TC qdisc ls dev $DUMMY",
"matchPattern": "drr 1: root",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY root handle 1: drr",
"$TC qdisc del dev $DUMMY ingress",
"$IP addr del 10.10.10.10/24 dev $DUMMY"
]
},
{
"id": "a4b9",
"name": "Test class qlen notification",
"category": [
"qdisc"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY root handle 1: drr",
"$TC filter add dev $DUMMY parent 1: basic classid 1:1",
"$TC class add dev $DUMMY parent 1: classid 1:1 drr",
"$TC qdisc add dev $DUMMY parent 1:1 handle 2: netem",
"$TC qdisc add dev $DUMMY parent 2: handle 3: drr",
"$TC filter add dev $DUMMY parent 3: basic action drop",
"$TC class add dev $DUMMY parent 3: classid 3:1 drr",
"$TC class del dev $DUMMY classid 1:1",
"$TC class add dev $DUMMY parent 1: classid 1:1 drr"
],
"cmdUnderTest": "ping -c1 -W0.01 -I $DUMMY 10.10.10.1",
"expExitCode": "1",
"verifyCmd": "$TC qdisc ls dev $DUMMY",
"matchPattern": "drr 1: root",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY root handle 1: drr",
"$IP addr del 10.10.10.10/24 dev $DUMMY"
]
},
{
"id": "c024",
"name": "Test TBF with SKBPRIO - catch qlen corner cases",
"category": [
"qdisc",
"tbf",
"skbprio"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY handle 1: root tbf rate 100bit burst 2000 limit 1000",
"$TC qdisc add dev $DUMMY parent 1: handle 10: skbprio limit 1",
"ping -c 1 -W 0.1 -Q 0x00 -s 1400 -I $DUMMY 10.10.10.1 > /dev/null || true",
"ping -c 1 -W 0.1 -Q 0x1c -s 1400 -I $DUMMY 10.10.10.1 > /dev/null || true",
"ping -c 1 -W 0.1 -Q 0x00 -s 1400 -I $DUMMY 10.10.10.1 > /dev/null || true",
"ping -c 1 -W 0.1 -Q 0x1c -s 1400 -I $DUMMY 10.10.10.1 > /dev/null || true",
"sleep 0.5"
],
"cmdUnderTest": "$TC -s qdisc show dev $DUMMY",
"expExitCode": "0",
"verifyCmd": "$TC -s qdisc show dev $DUMMY | grep -A 5 'qdisc skbprio'",
"matchPattern": "dropped [1-9][0-9]*",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY handle 1: root",
"$IP addr del 10.10.10.10/24 dev $DUMMY || true"
]
},
{
"id": "a4bb",
"name": "Test FQ_CODEL with HTB parent - force packet drop with empty queue",
"category": [
"qdisc",
"fq_codel",
"htb"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY handle 1: root htb default 10",
"$TC class add dev $DUMMY parent 1: classid 1:10 htb rate 1kbit",
"$TC qdisc add dev $DUMMY parent 1:10 handle 10: fq_codel memory_limit 1 flows 1 target 0.1ms interval 1ms",
"$TC filter add dev $DUMMY parent 1: protocol ip prio 1 u32 match ip protocol 1 0xff flowid 1:10",
"ping -c 5 -f -I $DUMMY 10.10.10.1 > /dev/null || true",
"sleep 0.1"
],
"cmdUnderTest": "$TC -s qdisc show dev $DUMMY",
"expExitCode": "0",
"verifyCmd": "$TC -s qdisc show dev $DUMMY | grep -A 5 'qdisc fq_codel'",
"matchPattern": "dropped [1-9][0-9]*",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY handle 1: root",
"$IP addr del 10.10.10.10/24 dev $DUMMY || true"
]
},
{
"id": "a4be",
"name": "Test FQ_CODEL with QFQ parent - force packet drop with empty queue",
"category": [
"qdisc",
"fq_codel",
"qfq"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY handle 1: root qfq",
"$TC class add dev $DUMMY parent 1: classid 1:10 qfq weight 1 maxpkt 1000",
"$TC qdisc add dev $DUMMY parent 1:10 handle 10: fq_codel memory_limit 1 flows 1 target 0.1ms interval 1ms",
"$TC filter add dev $DUMMY parent 1: protocol ip prio 1 u32 match ip protocol 1 0xff flowid 1:10",
"ping -c 10 -s 1000 -f -I $DUMMY 10.10.10.1 > /dev/null || true",
"sleep 0.1"
],
"cmdUnderTest": "$TC -s qdisc show dev $DUMMY",
"expExitCode": "0",
"verifyCmd": "$TC -s qdisc show dev $DUMMY | grep -A 5 'qdisc fq_codel'",
"matchPattern": "dropped [1-9][0-9]*",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY handle 1: root",
"$IP addr del 10.10.10.10/24 dev $DUMMY || true"
]
},
{
"id": "a4bf",
"name": "Test FQ_CODEL with HFSC parent - force packet drop with empty queue",
"category": [
"qdisc",
"fq_codel",
"hfsc"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY handle 1: root hfsc default 10",
"$TC class add dev $DUMMY parent 1: classid 1:10 hfsc sc rate 1kbit ul rate 1kbit",
"$TC qdisc add dev $DUMMY parent 1:10 handle 10: fq_codel memory_limit 1 flows 1 target 0.1ms interval 1ms",
"$TC filter add dev $DUMMY parent 1: protocol ip prio 1 u32 match ip protocol 1 0xff flowid 1:10",
"ping -c 5 -f -I $DUMMY 10.10.10.1 > /dev/null || true",
"sleep 0.1"
],
"cmdUnderTest": "$TC -s qdisc show dev $DUMMY",
"expExitCode": "0",
"verifyCmd": "$TC -s qdisc show dev $DUMMY | grep -A 5 'qdisc fq_codel'",
"matchPattern": "dropped [1-9][0-9]*",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY handle 1: root",
"$IP addr del 10.10.10.10/24 dev $DUMMY || true"
]
},
{
"id": "a4c0",
"name": "Test FQ_CODEL with DRR parent - force packet drop with empty queue",
"category": [
"qdisc",
"fq_codel",
"drr"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY handle 1: root drr",
"$TC class add dev $DUMMY parent 1: classid 1:10 drr quantum 1500",
"$TC qdisc add dev $DUMMY parent 1:10 handle 10: fq_codel memory_limit 1 flows 1 target 0.1ms interval 1ms",
"$TC filter add dev $DUMMY parent 1: protocol ip prio 1 u32 match ip protocol 1 0xff flowid 1:10",
"ping -c 5 -f -I $DUMMY 10.10.10.1 > /dev/null || true",
"sleep 0.1"
],
"cmdUnderTest": "$TC -s qdisc show dev $DUMMY",
"expExitCode": "0",
"verifyCmd": "$TC -s qdisc show dev $DUMMY | grep -A 5 'qdisc fq_codel'",
"matchPattern": "dropped [1-9][0-9]*",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY handle 1: root",
"$IP addr del 10.10.10.10/24 dev $DUMMY || true"
]
},
{
"id": "a4c1",
"name": "Test FQ_CODEL with ETS parent - force packet drop with empty queue",
"category": [
"qdisc",
"fq_codel",
"ets"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY handle 1: root ets bands 2 strict 1",
"$TC class change dev $DUMMY parent 1: classid 1:1 ets",
"$TC qdisc add dev $DUMMY parent 1:1 handle 10: fq_codel memory_limit 1 flows 1 target 0.1ms interval 1ms",
"$TC filter add dev $DUMMY parent 1: protocol ip prio 1 u32 match ip protocol 1 0xff flowid 1:1",
"ping -c 5 -f -I $DUMMY 10.10.10.1 > /dev/null || true",
"sleep 0.1"
],
"cmdUnderTest": "$TC -s qdisc show dev $DUMMY",
"expExitCode": "0",
"verifyCmd": "$TC -s qdisc show dev $DUMMY | grep -A 5 'qdisc fq_codel'",
"matchPattern": "dropped [1-9][0-9]*",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY handle 1: root",
"$IP addr del 10.10.10.10/24 dev $DUMMY || true"
]
},
{
"id": "a4c3",
"name": "Test HFSC with netem/blackhole - queue emptying during peek operation",
"category": [
"qdisc",
"hfsc",
"netem",
"blackhole"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY handle 1:0 root drr",
"$TC class add dev $DUMMY parent 1:0 classid 1:1 drr",
"$TC class add dev $DUMMY parent 1:0 classid 1:2 drr",
"$TC qdisc add dev $DUMMY parent 1:1 handle 2:0 plug limit 1024",
"$TC qdisc add dev $DUMMY parent 1:2 handle 3:0 hfsc default 1",
"$TC class add dev $DUMMY parent 3:0 classid 3:1 hfsc rt m1 5Mbit d 10ms m2 10Mbit",
"$TC qdisc add dev $DUMMY parent 3:1 handle 4:0 netem delay 1ms",
"$TC qdisc add dev $DUMMY parent 4:1 handle 5:0 blackhole",
"ping -c 3 -W 0.01 -i 0.001 -s 1 10.10.10.10 -I $DUMMY > /dev/null 2>&1 || true",
"$TC class change dev $DUMMY parent 3:0 classid 3:1 hfsc sc m1 5Mbit d 10ms m2 10Mbit",
"$TC class del dev $DUMMY parent 3:0 classid 3:1",
"$TC class add dev $DUMMY parent 3:0 classid 3:1 hfsc rt m1 5Mbit d 10ms m2 10Mbit",
"ping -c 3 -W 0.01 -i 0.001 -s 1 10.10.10.10 -I $DUMMY > /dev/null 2>&1 || true"
],
"cmdUnderTest": "$TC class change dev $DUMMY parent 3:0 classid 3:1 hfsc sc m1 5Mbit d 10ms m2 10Mbit",
"expExitCode": "0",
"verifyCmd": "$TC -s qdisc show dev $DUMMY",
"matchPattern": "qdisc hfsc 3:.*parent 1:2.*default 1",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY handle 1:0 root",
"$IP addr del 10.10.10.10/24 dev $DUMMY || true"
]
},
{
"id": "90ec",
"name": "Test DRR's enqueue reentrant behaviour with netem",
"category": [
"qdisc",
"drr"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY handle 1:0 root drr",
"$TC class replace dev $DUMMY parent 1:0 classid 1:1 drr",
"$TC qdisc add dev $DUMMY parent 1:1 handle 2:0 netem duplicate 100%",
"$TC filter add dev $DUMMY parent 1:0 protocol ip prio 1 u32 match ip protocol 1 0xff flowid 1:1"
],
"cmdUnderTest": "ping -c 1 -I $DUMMY 10.10.10.1 > /dev/null || true",
"expExitCode": "0",
"verifyCmd": "$TC -j -s qdisc ls dev $DUMMY handle 1:0",
"matchJSON": [
{
"kind": "drr",
"handle": "1:",
"bytes": 196,
"packets": 2
}
],
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY handle 1:0 root",
"$IP addr del 10.10.10.10/24 dev $DUMMY || true"
]
},
{
"id": "1f1f",
"name": "Test ETS's enqueue reentrant behaviour with netem",
"category": [
"qdisc",
"ets"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY handle 1:0 root ets bands 2",
"$TC class replace dev $DUMMY parent 1:0 classid 1:1 ets quantum 1500",
"$TC qdisc add dev $DUMMY parent 1:1 handle 2:0 netem duplicate 100%",
"$TC filter add dev $DUMMY parent 1:0 protocol ip prio 1 u32 match ip protocol 1 0xff flowid 1:1"
],
"cmdUnderTest": "ping -c 1 -I $DUMMY 10.10.10.1 > /dev/null || true",
"expExitCode": "0",
"verifyCmd": "$TC -j -s class show dev $DUMMY",
"matchJSON": [
{
"class": "ets",
"handle": "1:1",
"stats": {
"bytes": 196,
"packets": 2
}
}
],
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY handle 1:0 root",
"$IP addr del 10.10.10.10/24 dev $DUMMY || true"
]
},
{
"id": "5e6d",
"name": "Test QFQ's enqueue reentrant behaviour with netem",
"category": [
"qdisc",
"qfq"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY handle 1:0 root qfq",
"$TC class replace dev $DUMMY parent 1:0 classid 1:1 qfq weight 100 maxpkt 1500",
"$TC qdisc add dev $DUMMY parent 1:1 handle 2:0 netem duplicate 100%",
"$TC filter add dev $DUMMY parent 1:0 protocol ip prio 1 u32 match ip protocol 1 0xff flowid 1:1"
],
"cmdUnderTest": "ping -c 1 -I $DUMMY 10.10.10.1 > /dev/null || true",
"expExitCode": "0",
"verifyCmd": "$TC -j -s qdisc ls dev $DUMMY handle 1:0",
"matchJSON": [
{
"kind": "qfq",
"handle": "1:",
"bytes": 196,
"packets": 2
}
],
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY handle 1:0 root",
"$IP addr del 10.10.10.10/24 dev $DUMMY || true"
]
},
{
"id": "bf1d",
"name": "Test HFSC's enqueue reentrant behaviour with netem",
"category": [
"qdisc",
"hfsc"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY handle 1:0 root hfsc",
"$TC class add dev $DUMMY parent 1:0 classid 1:1 hfsc ls m2 10Mbit",
"$TC qdisc add dev $DUMMY parent 1:1 handle 2:0 netem duplicate 100%",
"$TC filter add dev $DUMMY parent 1:0 protocol ip prio 1 u32 match ip dst 10.10.10.1/32 flowid 1:1",
"$TC class add dev $DUMMY parent 1:0 classid 1:2 hfsc ls m2 10Mbit",
"$TC qdisc add dev $DUMMY parent 1:2 handle 3:0 netem duplicate 100%",
"$TC filter add dev $DUMMY parent 1:0 protocol ip prio 2 u32 match ip dst 10.10.10.2/32 flowid 1:2",
"ping -c 1 10.10.10.1 -I$DUMMY > /dev/null || true",
"$TC filter del dev $DUMMY parent 1:0 protocol ip prio 1",
"$TC class del dev $DUMMY classid 1:1"
],
"cmdUnderTest": "ping -c 1 10.10.10.2 -I$DUMMY > /dev/null || true",
"expExitCode": "0",
"verifyCmd": "$TC -j -s qdisc ls dev $DUMMY handle 1:0",
"matchJSON": [
{
"kind": "hfsc",
"handle": "1:",
"bytes": 392,
"packets": 4
}
],
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY handle 1:0 root",
"$IP addr del 10.10.10.10/24 dev $DUMMY || true"
]
},
{
"id": "7c3b",
"name": "Test nested DRR's enqueue reentrant behaviour with netem",
"category": [
"qdisc",
"drr"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.10.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY handle 1:0 root drr",
"$TC class add dev $DUMMY parent 1:0 classid 1:1 drr",
"$TC filter add dev $DUMMY parent 1:0 protocol ip prio 1 u32 match ip protocol 1 0xff flowid 1:1",
"$TC qdisc add dev $DUMMY handle 2:0 parent 1:1 drr",
"$TC class add dev $DUMMY classid 2:1 parent 2:0 drr",
"$TC filter add dev $DUMMY parent 2:0 protocol ip prio 1 u32 match ip protocol 1 0xff flowid 2:1",
"$TC qdisc add dev $DUMMY parent 2:1 handle 3:0 netem duplicate 100%"
],
"cmdUnderTest": "ping -c 1 -I $DUMMY 10.10.10.1 > /dev/null || true",
"expExitCode": "0",
"verifyCmd": "$TC -j -s qdisc ls dev $DUMMY handle 1:0",
"matchJSON": [
{
"kind": "drr",
"handle": "1:",
"bytes": 196,
"packets": 2
}
],
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DUMMY handle 1:0 root",
"$IP addr del 10.10.10.10/24 dev $DUMMY || true"
]
},
{
"id": "62c4",
"name": "Test HTB with FQ_CODEL - basic functionality",
"category": [
"qdisc",
"htb",
"fq_codel"
],
"plugins": {
"requires": [
"nsPlugin",
"scapyPlugin"
]
},
"setup": [
"$TC qdisc add dev $DEV1 root handle 1: htb default 11",
"$TC class add dev $DEV1 parent 1: classid 1:1 htb rate 10kbit",
"$TC class add dev $DEV1 parent 1:1 classid 1:11 htb rate 10kbit prio 0 quantum 1486",
"$TC qdisc add dev $DEV1 parent 1:11 fq_codel quantum 300 noecn",
"sleep 0.5"
],
"scapy": {
"iface": "$DEV0",
"count": 5,
"packet": "Ether()/IP(dst='10.10.10.1', src='10.10.10.10')/TCP(sport=12345, dport=80)"
},
"cmdUnderTest": "$TC -s qdisc show dev $DEV1",
"expExitCode": "0",
"verifyCmd": "$TC -s qdisc show dev $DEV1 | grep -A 5 'qdisc fq_codel'",
"matchPattern": "Sent [0-9]+ bytes [0-9]+ pkt",
"matchCount": "1",
"teardown": [
"$TC qdisc del dev $DEV1 handle 1: root"
]
},
{
"id": "831d",
"name": "Test HFSC qlen accounting with DRR/NETEM/BLACKHOLE chain",
"category": ["qdisc", "hfsc", "drr", "netem", "blackhole"],
"plugins": { "requires": ["nsPlugin", "scapyPlugin"] },
"setup": [
"$IP link set dev $DEV1 up || true",
"$TC qdisc add dev $DEV1 root handle 1: drr",
"$TC filter add dev $DEV1 parent 1: basic classid 1:1",
"$TC class add dev $DEV1 parent 1: classid 1:1 drr",
"$TC qdisc add dev $DEV1 parent 1:1 handle 2: hfsc def 1",
"$TC class add dev $DEV1 parent 2: classid 2:1 hfsc rt m1 8 d 1 m2 0",
"$TC qdisc add dev $DEV1 parent 2:1 handle 3: netem",
"$TC qdisc add dev $DEV1 parent 3:1 handle 4: blackhole"
],
"scapy": {
"iface": "$DEV0",
"count": 5,
"packet": "Ether()/IP(dst='10.10.10.1', src='10.10.10.10')/ICMP()"
},
"cmdUnderTest": "$TC -s qdisc show dev $DEV1",
"expExitCode": "0",
"verifyCmd": "$TC -s qdisc show dev $DEV1",
"matchPattern": "qdisc hfsc",
"matchCount": "1",
"teardown": ["$TC qdisc del dev $DEV1 root handle 1: drr"]
},
{
"id": "309e",
"name": "Test HFSC eltree double add with reentrant enqueue behaviour on netem",
"category": [
"qdisc",
"hfsc"
],
"plugins": {
"requires": "nsPlugin"
},
"setup": [
"$IP link set dev $DUMMY up || true",
"$IP addr add 10.10.11.10/24 dev $DUMMY || true",
"$TC qdisc add dev $DUMMY root handle 1: tbf rate 8bit burst 100b latency 1s",
"$TC qdisc add dev $DUMMY parent 1:0 handle 2:0 hfsc",
"ping -I $DUMMY -f -c10 -s48 -W0.001 10.10.11.1 || true",
"$TC class add dev $DUMMY parent 2:0 classid 2:1 hfsc rt m2 20Kbit",
"$TC qdisc add dev $DUMMY parent 2:1 handle 3:0 netem duplicate 100%",
"$TC class add dev $DUMMY parent 2:0 classid 2:2 hfsc rt m2 20Kbit",
"$TC filter add dev $DUMMY parent 2:0 protocol ip prio 1 u32 match ip dst 10.10.11.2/32 flowid 2:1",
"$TC filter add dev $DUMMY parent 2:0 protocol ip prio 2 u32 match ip dst 10.10.11.3/32 flowid 2:2",
"ping -c 1 10.10.11.2 -I$DUMMY > /dev/null || true",
"$TC filter del dev $DUMMY parent 2:0 protocol ip prio 1",
"$TC class del dev $DUMMY classid 2:1",
"ping -c 1 10.10.11.3 -I$DUMMY > /dev/null || true"
],
"cmdUnderTest": "$TC class change dev $DUMMY parent 2:0 classid 2:2 hfsc sc m2 20Kbit",
"expExitCode": "0",
"verifyCmd": "$TC -j class ls dev $DUMMY classid 2:1",
"matchJSON": [],
"teardown": [
"$TC qdisc del dev $DUMMY handle 1:0 root",
"$IP addr del 10.10.10.10/24 dev $DUMMY || true"
]
}
]
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