144 lines
3.3 KiB
Bash
Executable File
144 lines
3.3 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0-only
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source ../../../net/net_helper.sh
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NSIM_DEV_1_ID=$((256 + RANDOM % 256))
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NSIM_DEV_1_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_DEV_1_ID
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NSIM_DEV_2_ID=$((512 + RANDOM % 256))
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NSIM_DEV_2_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_DEV_2_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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socat_check()
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{
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if [ ! -x "$(command -v socat)" ]; then
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echo "socat command not found. Skipping test"
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return 1
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fi
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return 0
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}
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setup_ns()
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{
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set -e
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ip netns add nssv
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ip netns add nscl
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NSIM_DEV_1_NAME=$(find $NSIM_DEV_1_SYS/net -maxdepth 1 -type d ! \
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-path $NSIM_DEV_1_SYS/net -exec basename {} \;)
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NSIM_DEV_2_NAME=$(find $NSIM_DEV_2_SYS/net -maxdepth 1 -type d ! \
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-path $NSIM_DEV_2_SYS/net -exec basename {} \;)
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ip link set $NSIM_DEV_1_NAME netns nssv
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ip link set $NSIM_DEV_2_NAME netns nscl
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ip netns exec nssv ip addr add '192.168.1.1/24' dev $NSIM_DEV_1_NAME
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ip netns exec nscl ip addr add '192.168.1.2/24' dev $NSIM_DEV_2_NAME
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ip netns exec nssv ip link set dev $NSIM_DEV_1_NAME up
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ip netns exec nscl ip link set dev $NSIM_DEV_2_NAME up
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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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socat_check || exit 4
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modprobe netdevsim
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# linking
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echo $NSIM_DEV_1_ID > $NSIM_DEV_SYS_NEW
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echo $NSIM_DEV_2_ID > $NSIM_DEV_SYS_NEW
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udevadm settle
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setup_ns
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NSIM_DEV_1_FD=$((256 + RANDOM % 256))
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exec {NSIM_DEV_1_FD}</var/run/netns/nssv
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NSIM_DEV_1_IFIDX=$(ip netns exec nssv cat /sys/class/net/$NSIM_DEV_1_NAME/ifindex)
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NSIM_DEV_2_FD=$((256 + RANDOM % 256))
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exec {NSIM_DEV_2_FD}</var/run/netns/nscl
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NSIM_DEV_2_IFIDX=$(ip netns exec nscl cat /sys/class/net/$NSIM_DEV_2_NAME/ifindex)
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echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX $NSIM_DEV_2_FD:2000" > $NSIM_DEV_SYS_LINK 2>/dev/null
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if [ $? -eq 0 ]; then
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echo "linking with non-existent netdevsim should fail"
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cleanup_ns
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exit 1
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fi
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echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX 2000:$NSIM_DEV_2_IFIDX" > $NSIM_DEV_SYS_LINK 2>/dev/null
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if [ $? -eq 0 ]; then
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echo "linking with non-existent netnsid should fail"
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cleanup_ns
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exit 1
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fi
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echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX $NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX" > $NSIM_DEV_SYS_LINK 2>/dev/null
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if [ $? -eq 0 ]; then
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echo "linking with self should fail"
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cleanup_ns
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exit 1
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fi
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echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX $NSIM_DEV_2_FD:$NSIM_DEV_2_IFIDX" > $NSIM_DEV_SYS_LINK
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if [ $? -ne 0 ]; then
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echo "linking netdevsim1 with netdevsim2 should succeed"
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cleanup_ns
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exit 1
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fi
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# argument error checking
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echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX $NSIM_DEV_2_FD:a" > $NSIM_DEV_SYS_LINK 2>/dev/null
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if [ $? -eq 0 ]; then
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echo "invalid arg should fail"
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cleanup_ns
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exit 1
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fi
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# send/recv packets
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tmp_file=$(mktemp)
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ip netns exec nssv socat TCP-LISTEN:1234,fork $tmp_file &
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pid=$!
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res=0
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wait_local_port_listen nssv 1234 tcp
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echo "HI" | ip netns exec nscl socat STDIN TCP:192.168.1.1:1234
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count=$(cat $tmp_file | wc -c)
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if [[ $count -ne 3 ]]; then
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echo "expected 3 bytes, got $count"
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res=1
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fi
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echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX" > $NSIM_DEV_SYS_UNLINK
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echo $NSIM_DEV_2_ID > $NSIM_DEV_SYS_DEL
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kill $pid
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echo $NSIM_DEV_1_ID > $NSIM_DEV_SYS_DEL
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cleanup_ns
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modprobe -r netdevsim
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exit $res
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