mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-07 22:23:00 +00:00
ecdec65ec7
Ensure that a duplicating netem cannot exist in a tree with other netems in both qdisc addition and change. This is meant to prevent the soft lockup and OOM loop scenario discussed in [1]. Also adjust a HFSC's re-entrancy test case with netem for this new restriction - KASAN still triggers upon its failure. [1] https://lore.kernel.org/netdev/8DuRWwfqjoRDLDmBMlIfbrsZg9Gx50DHJc1ilxsEBNe2D6NMoigR_eIRIG0LOjMc3r10nUUZtArXx4oZBIdUfZQrwjcQhdinnMis_0G7VEk=@willsroot.io/ Signed-off-by: William Liu <will@willsroot.io> Reviewed-by: Savino Dicanosa <savy@syst3mfailure.io> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Link: https://patch.msgid.link/20250708164219.875521-1-will@willsroot.io Signed-off-by: Jakub Kicinski <kuba@kernel.org>
422 lines
13 KiB
JSON
422 lines
13 KiB
JSON
[
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{
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"id": "cb28",
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"name": "Create NETEM with default setting",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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],
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"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem",
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"expExitCode": "0",
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"verifyCmd": "$TC qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem 1: root refcnt [0-9]+ limit",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1: root"
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]
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},
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{
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"id": "a089",
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"name": "Create NETEM with limit flag",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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],
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"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem limit 200",
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"expExitCode": "0",
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"verifyCmd": "$TC qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem 1: root refcnt [0-9]+ limit 200",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1: root"
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]
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},
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{
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"id": "3449",
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"name": "Create NETEM with delay time",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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],
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"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms",
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"expExitCode": "0",
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"verifyCmd": "$TC qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*delay 100ms",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1: root"
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]
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},
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{
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"id": "3782",
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"name": "Create NETEM with distribution and corrupt flag",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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],
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"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms distribution normal corrupt 1%",
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"expExitCode": "0",
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"verifyCmd": "$TC qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*delay 100ms 10ms corrupt 1%",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1: root"
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]
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},
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{
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"id": "2b82",
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"name": "Create NETEM with distribution and duplicate flag",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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],
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"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms distribution normal duplicate 1%",
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"expExitCode": "0",
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"verifyCmd": "$TC qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*delay 100ms 10ms duplicate 1%",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1: root"
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]
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},
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{
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"id": "a932",
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"name": "Create NETEM with distribution and loss flag",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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],
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"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms distribution pareto loss 1%",
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"expExitCode": "0",
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"verifyCmd": "$TC qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*delay 100ms 10ms loss 1%",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1: root"
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]
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},
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{
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"id": "e01a",
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"name": "Create NETEM with distribution and loss state flag",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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],
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"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms distribution paretonormal loss state 1",
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"expExitCode": "0",
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"verifyCmd": "$TC qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*delay 100ms 10ms loss state p13 1% p31 99% p32 0% p23 100% p14 0%",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1: root"
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]
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},
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{
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"id": "ba29",
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"name": "Create NETEM with loss gemodel flag",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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],
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"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem loss gemodel 1%",
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"expExitCode": "0",
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"verifyCmd": "$TC qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*loss gemodel p 1%",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1: root"
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]
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},
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{
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"id": "0492",
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"name": "Create NETEM with reorder flag",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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],
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"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms reorder 2% gap 100",
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"expExitCode": "0",
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"verifyCmd": "$TC qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*reorder 2%",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1: root"
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]
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},
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{
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"id": "7862",
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"name": "Create NETEM with rate limit",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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],
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"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem rate 20000",
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"expExitCode": "0",
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"verifyCmd": "$TC qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*rate 20Kbit",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1: root"
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]
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},
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{
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"id": "7235",
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"name": "Create NETEM with multiple slot rate",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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],
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"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem slot 10 200 packets 2000 bytes 9000",
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"expExitCode": "0",
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"verifyCmd": "$TC qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*slot 10ns 200ns packets 2000 bytes 9000",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1: root"
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]
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},
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{
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"id": "5439",
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"name": "Create NETEM with multiple slot setting",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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],
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"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem slot distribution pareto 1ms 0.1ms",
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"expExitCode": "0",
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"verifyCmd": "$TC qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*slot distribution 1ms 100us",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1: root"
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]
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},
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{
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"id": "5029",
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"name": "Change NETEM with loss state",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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"$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms distribution normal loss 1%"
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],
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"cmdUnderTest": "$TC qdisc change dev $DUMMY handle 1: root netem delay 100ms 10ms distribution normal loss 2%",
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"expExitCode": "0",
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"verifyCmd": "$TC qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*loss 2%",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1: root"
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]
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},
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{
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"id": "3785",
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"name": "Replace NETEM with delay time",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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"$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms distribution normal loss 1%"
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],
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"cmdUnderTest": "$TC qdisc replace dev $DUMMY handle 1: root netem delay 200ms 10ms",
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"expExitCode": "0",
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"verifyCmd": "$TC qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*delay 200ms 10ms",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1: root"
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]
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},
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{
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"id": "4502",
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"name": "Delete NETEM with handle",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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"$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms distribution normal"
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],
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"cmdUnderTest": "$TC qdisc del dev $DUMMY handle 1: root",
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"expExitCode": "0",
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"verifyCmd": "$TC qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*delay 100ms 10ms",
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"matchCount": "0",
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"teardown": [
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]
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},
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{
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"id": "0785",
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"name": "Show NETEM class",
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"category": [
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"qdisc",
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"netem"
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],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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],
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"cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem",
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"expExitCode": "0",
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"verifyCmd": "$TC class show dev $DUMMY",
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"matchPattern": "class netem 1:",
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"matchCount": "0",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1: root"
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]
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},
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{
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"id": "d34d",
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"name": "NETEM test qdisc duplication restriction in qdisc tree in netem_change root",
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"category": ["qdisc", "netem"],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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"$TC qdisc add dev $DUMMY root handle 1: netem limit 1",
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"$TC qdisc add dev $DUMMY parent 1: handle 2: netem limit 1"
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],
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"cmdUnderTest": "$TC qdisc change dev $DUMMY handle 1: netem duplicate 50%",
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"expExitCode": "2",
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"verifyCmd": "$TC -s qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem",
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"matchCount": "2",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1:0 root"
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]
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},
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{
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"id": "b33f",
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"name": "NETEM test qdisc duplication restriction in qdisc tree in netem_change non-root",
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"category": ["qdisc", "netem"],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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"$TC qdisc add dev $DUMMY root handle 1: netem limit 1",
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"$TC qdisc add dev $DUMMY parent 1: handle 2: netem limit 1"
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],
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"cmdUnderTest": "$TC qdisc change dev $DUMMY handle 2: netem duplicate 50%",
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"expExitCode": "2",
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"verifyCmd": "$TC -s qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem",
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"matchCount": "2",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1:0 root"
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]
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},
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{
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"id": "cafe",
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"name": "NETEM test qdisc duplication restriction in qdisc tree",
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"category": ["qdisc", "netem"],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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"$TC qdisc add dev $DUMMY root handle 1: netem limit 1 duplicate 100%"
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],
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"cmdUnderTest": "$TC qdisc add dev $DUMMY parent 1: handle 2: netem duplicate 100%",
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"expExitCode": "2",
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"verifyCmd": "$TC -s qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1:0 root"
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]
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},
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{
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"id": "1337",
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"name": "NETEM test qdisc duplication restriction in qdisc tree across branches",
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"category": ["qdisc", "netem"],
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"plugins": {
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"requires": "nsPlugin"
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},
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"setup": [
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"$TC qdisc add dev $DUMMY parent root handle 1:0 hfsc",
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"$TC class add dev $DUMMY parent 1:0 classid 1:1 hfsc rt m2 10Mbit",
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"$TC qdisc add dev $DUMMY parent 1:1 handle 2:0 netem",
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"$TC class add dev $DUMMY parent 1:0 classid 1:2 hfsc rt m2 10Mbit"
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],
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"cmdUnderTest": "$TC qdisc add dev $DUMMY parent 1:2 handle 3:0 netem duplicate 100%",
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"expExitCode": "2",
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"verifyCmd": "$TC -s qdisc show dev $DUMMY",
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"matchPattern": "qdisc netem",
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"matchCount": "1",
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"teardown": [
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"$TC qdisc del dev $DUMMY handle 1:0 root"
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]
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}
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]
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