mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 16:54:27 +00:00
137e7b5cce
Add a test that checks that the NAPI ID of a passive TFO socket is valid i.e. not zero. Signed-off-by: David Wei <dw@davidwei.uk> Link: https://patch.msgid.link/20250617212102.175711-4-dw@davidwei.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
112 lines
2.4 KiB
Bash
Executable file
112 lines
2.4 KiB
Bash
Executable file
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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source lib.sh
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NSIM_SV_ID=$((256 + RANDOM % 256))
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NSIM_SV_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_SV_ID
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NSIM_CL_ID=$((512 + RANDOM % 256))
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NSIM_CL_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_CL_ID
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NSIM_DEV_SYS_NEW=/sys/bus/netdevsim/new_device
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NSIM_DEV_SYS_DEL=/sys/bus/netdevsim/del_device
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NSIM_DEV_SYS_LINK=/sys/bus/netdevsim/link_device
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NSIM_DEV_SYS_UNLINK=/sys/bus/netdevsim/unlink_device
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SERVER_IP=192.168.1.1
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CLIENT_IP=192.168.1.2
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SERVER_PORT=48675
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setup_ns()
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{
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set -e
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ip netns add nssv
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ip netns add nscl
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NSIM_SV_NAME=$(find $NSIM_SV_SYS/net -maxdepth 1 -type d ! \
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-path $NSIM_SV_SYS/net -exec basename {} \;)
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NSIM_CL_NAME=$(find $NSIM_CL_SYS/net -maxdepth 1 -type d ! \
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-path $NSIM_CL_SYS/net -exec basename {} \;)
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ip link set $NSIM_SV_NAME netns nssv
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ip link set $NSIM_CL_NAME netns nscl
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ip netns exec nssv ip addr add "${SERVER_IP}/24" dev $NSIM_SV_NAME
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ip netns exec nscl ip addr add "${CLIENT_IP}/24" dev $NSIM_CL_NAME
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ip netns exec nssv ip link set dev $NSIM_SV_NAME up
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ip netns exec nscl ip link set dev $NSIM_CL_NAME up
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# Enable passive TFO
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ip netns exec nssv sysctl -w net.ipv4.tcp_fastopen=519 > /dev/null
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set +e
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}
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cleanup_ns()
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{
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ip netns del nscl
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ip netns del nssv
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}
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###
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### Code start
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###
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modprobe netdevsim
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# linking
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echo $NSIM_SV_ID > $NSIM_DEV_SYS_NEW
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echo $NSIM_CL_ID > $NSIM_DEV_SYS_NEW
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udevadm settle
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setup_ns
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NSIM_SV_FD=$((256 + RANDOM % 256))
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exec {NSIM_SV_FD}</var/run/netns/nssv
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NSIM_SV_IFIDX=$(ip netns exec nssv cat /sys/class/net/$NSIM_SV_NAME/ifindex)
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NSIM_CL_FD=$((256 + RANDOM % 256))
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exec {NSIM_CL_FD}</var/run/netns/nscl
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NSIM_CL_IFIDX=$(ip netns exec nscl cat /sys/class/net/$NSIM_CL_NAME/ifindex)
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echo "$NSIM_SV_FD:$NSIM_SV_IFIDX $NSIM_CL_FD:$NSIM_CL_IFIDX" > \
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$NSIM_DEV_SYS_LINK
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if [ $? -ne 0 ]; then
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echo "linking netdevsim1 with netdevsim2 should succeed"
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cleanup_ns
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exit 1
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fi
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out_file=$(mktemp)
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timeout -k 1s 30s ip netns exec nssv ./tfo \
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-s \
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-p ${SERVER_PORT} \
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-o ${out_file}&
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wait_local_port_listen nssv ${SERVER_PORT} tcp
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ip netns exec nscl ./tfo -c -h ${SERVER_IP} -p ${SERVER_PORT}
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wait
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res=$(cat $out_file)
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rm $out_file
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if [ $res -eq 0 ]; then
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echo "got invalid NAPI ID from passive TFO socket"
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cleanup_ns
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exit 1
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fi
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echo "$NSIM_SV_FD:$NSIM_SV_IFIDX" > $NSIM_DEV_SYS_UNLINK
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echo $NSIM_CL_ID > $NSIM_DEV_SYS_DEL
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cleanup_ns
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modprobe -r netdevsim
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exit 0
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