e813a4df7d
Because the host and guest share the same IP address with passt/pasta, it's not possible for the guest to directly address the host. Therefore we allow packets from the guest going to a special "NAT to host" address to be redirected to the host, appearing there as though they have both source and destination address of loopback. Currently that special address is always the address of the default gateway (or none). That can be a problem if we want that gateway to be addressable by the guest. Therefore, allow the special "NAT to host" address to be overridden on the command line with a new --map-host-loopback option. In order to exercise and test it, update the passt_in_ns and perf tests to use this option and give different mapping addresses for the two layers of the environment. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
140 lines
4.6 KiB
Text
140 lines
4.6 KiB
Text
# SPDX-License-Identifier: GPL-2.0-or-later
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#
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# PASST - Plug A Simple Socket Transport
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# for qemu/UNIX domain socket mode
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#
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# PASTA - Pack A Subtle Tap Abstraction
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# for network namespace/tap device mode
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#
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# test/passt_in_ns/udp - Check UDP functionality for passt in ns and pasta
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#
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# Copyright (c) 2021 Red Hat GmbH
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# Author: Stefano Brivio <sbrivio@redhat.com>
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gtools socat ip jq
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nstools socat ip jq
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htools socat ip jq
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set MAP_HOST4 192.0.2.1
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set MAP_HOST6 2001:db8:9a55::1
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set MAP_NS4 192.0.2.2
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set MAP_NS6 2001:db8:9a55::2
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set TEMP __STATEDIR__/test.bin
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set TEMP_NS __STATEDIR__/test_ns.bin
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test UDP/IPv4: host to guest
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guestb socat -u UDP4-LISTEN:10001,null-eof OPEN:test.bin,create,trunc
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sleep 1
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host socat -u OPEN:__BASEPATH__/medium.bin UDP4:127.0.0.1:10001,shut-null
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guestw
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guest cmp test.bin /root/medium.bin
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test UDP/IPv4: host to ns
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nsb socat -u UDP4-LISTEN:10002,null-eof OPEN:__TEMP_NS__,create,trunc
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sleep 1
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host socat -u OPEN:__BASEPATH__/medium.bin UDP4:127.0.0.1:10002,shut-null
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nsw
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check cmp __TEMP_NS__ __BASEPATH__/medium.bin
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test UDP/IPv4: guest to host
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hostb socat -u UDP4-LISTEN:10003,null-eof OPEN:__TEMP__,create,trunc
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sleep 1
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guest socat -u OPEN:/root/medium.bin UDP4:__MAP_HOST4__:10003,shut-null
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hostw
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check cmp __TEMP__ __BASEPATH__/medium.bin
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test UDP/IPv4: guest to ns
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nsb socat -u UDP4-LISTEN:10002,null-eof OPEN:__TEMP_NS__,create,trunc
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sleep 1
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guest socat -u OPEN:/root/medium.bin UDP4:__MAP_NS4__:10002,shut-null
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nsw
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check cmp __TEMP_NS__ __BASEPATH__/medium.bin
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test UDP/IPv4: ns to host (recvmmsg/sendmmsg)
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hostb socat -u UDP4-LISTEN:10003,null-eof OPEN:__TEMP__,create,trunc
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sleep 1
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ns socat -u OPEN:__BASEPATH__/medium.bin UDP4:127.0.0.1:10003,shut-null
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hostw
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check cmp __TEMP__ __BASEPATH__/medium.bin
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test UDP/IPv4: ns to host (via tap)
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hostb socat -u UDP4-LISTEN:10003,null-eof OPEN:__TEMP__,create,trunc
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sleep 1
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ns socat -u OPEN:__BASEPATH__/medium.bin UDP4:__MAP_HOST4__:10003,shut-null
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hostw
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check cmp __TEMP__ __BASEPATH__/medium.bin
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test UDP/IPv4: ns to guest (using loopback address)
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guestb socat -u UDP4-LISTEN:10001,null-eof OPEN:test.bin,create,trunc
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sleep 1
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ns socat -u OPEN:__BASEPATH__/medium.bin UDP4:127.0.0.1:10001,shut-null
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guestw
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guest cmp test.bin /root/medium.bin
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test UDP/IPv4: ns to guest (using namespace address)
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guestb socat -u UDP4-LISTEN:10001,null-eof OPEN:test.bin,create,trunc
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nsout IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
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nsout ADDR ip -j -4 addr show|jq -rM '.[] | select(.ifname == "__IFNAME__").addr_info[0].local'
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sleep 1
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ns socat -u OPEN:__BASEPATH__/medium.bin UDP4:__ADDR__:10001,shut-null
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guestw
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guest cmp test.bin /root/medium.bin
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test UDP/IPv6: host to guest
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guestb socat -u UDP6-LISTEN:10001,null-eof OPEN:test.bin,create,trunc
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sleep 1
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host socat -u OPEN:__BASEPATH__/medium.bin UDP6:[::1]:10001,shut-null
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guestw
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guest cmp test.bin /root/medium.bin
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test UDP/IPv6: host to ns
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nsb socat -u UDP6-LISTEN:10002,null-eof OPEN:__TEMP_NS__,create,trunc
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sleep 1
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host socat -u OPEN:__BASEPATH__/medium.bin UDP6:[::1]:10002,shut-null
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nsw
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check cmp __TEMP_NS__ __BASEPATH__/medium.bin
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test UDP/IPv6: guest to host
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hostb socat -u UDP6-LISTEN:10003,null-eof OPEN:__TEMP__,create,trunc
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sleep 1
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guest socat -u OPEN:/root/medium.bin UDP6:[__MAP_HOST6__]:10003,shut-null
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hostw
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check cmp __TEMP__ __BASEPATH__/medium.bin
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test UDP/IPv6: guest to ns
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nsb socat -u UDP6-LISTEN:10002,null-eof OPEN:__TEMP_NS__,create,trunc
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sleep 1
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guest socat -u OPEN:/root/medium.bin UDP6:[__MAP_NS6__]:10002,shut-null
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nsw
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check cmp __TEMP_NS__ __BASEPATH__/medium.bin
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test UDP/IPv6: ns to host (recvmmsg/sendmmsg)
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hostb socat -u UDP6-LISTEN:10003,null-eof OPEN:__TEMP__,create,trunc
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sleep 1
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ns socat -u OPEN:__BASEPATH__/medium.bin UDP6:[::1]:10003,shut-null
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hostw
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check cmp __TEMP__ __BASEPATH__/medium.bin
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test UDP/IPv6: ns to host (via tap)
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hostb socat -u UDP6-LISTEN:10003,null-eof OPEN:__TEMP__,create,trunc
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sleep 1
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ns socat -u OPEN:__BASEPATH__/medium.bin UDP6:[__MAP_HOST6__]:10003,shut-null
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hostw
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check cmp __TEMP__ __BASEPATH__/medium.bin
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test UDP/IPv6: ns to guest (using loopback address)
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guestb socat -u UDP6-LISTEN:10001,null-eof OPEN:test.bin,create,trunc
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sleep 1
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ns socat -u OPEN:__BASEPATH__/medium.bin UDP6:[::1]:10001,shut-null
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guestw
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guest cmp test.bin /root/medium.bin
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test UDP/IPv6: ns to guest (using namespace address)
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guestb socat -u UDP6-LISTEN:10001,null-eof OPEN:test.bin,create,trunc
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nsout IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
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nsout ADDR6 ip -j -6 addr show|jq -rM '.[] | select(.ifname == "__IFNAME__").addr_info[0].local'
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sleep 1
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ns socat -u OPEN:__BASEPATH__/medium.bin UDP6:[__ADDR6__]:10001,shut-null
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guestw
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guest cmp test.bin /root/medium.bin
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