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Because UDP is connectionless we don't have an in-built end-of-stream signal for our connectivity tests. We work around this by explicitly adding an end marker to our sample data and killing the listening end once it is seen. However, socat has some built-in options - null-eof and shut-null - which can be used to signal the end of stream with a zero-length UDP packet. Use these to simplify how the UDP tests are implemented. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
69 lines
2.4 KiB
Plaintext
69 lines
2.4 KiB
Plaintext
# SPDX-License-Identifier: AGPL-3.0-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/pasta/udp - Check UDP functionality for 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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nstools socat ip jq md5sum cut
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htools dd socat ip jq md5sum cut
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test UDP/IPv4: host to ns
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set TEMP __STATEDIR__/data
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set TEMP_NS __STATEDIR__/data_ns
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nsb socat -u UDP4-LISTEN:10002,bind=127.0.0.1,null-eof OPEN:__TEMP_NS__,create,trunc
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host dd if=/dev/urandom bs=1k count=5 > __TEMP__
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host socat OPEN:__TEMP__ UDP4:127.0.0.1:10002,shut-null
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nsw
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hout MD5 md5sum __TEMP__ | cut -d' ' -f1
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nsout NS_MD5 md5sum __TEMP_NS__ | cut -d' ' -f1
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check [ "__NS_MD5__" = "__MD5__" ]
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test UDP/IPv4: ns to host (recvmmsg/sendmmsg)
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hostb socat -u UDP4-LISTEN:10003,bind=127.0.0.1,null-eof OPEN:__TEMP__,create,trunc
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sleep 1
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ns socat OPEN:__TEMP_NS__ UDP4:127.0.0.1:10003,shut-null
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hostw
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hout HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
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check [ "__HOST_MD5__" = "__MD5__" ]
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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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nsout GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
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ns socat -u OPEN:__TEMP_NS__ UDP4:__GW__:10003,shut-null
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hostw
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hout HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
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check [ "__HOST_MD5__" = "__MD5__" ]
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test UDP/IPv6: host to ns
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nsb socat -u UDP6-LISTEN:10002,bind=[::1],null-eof OPEN:__TEMP_NS__,create,trunc
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host socat -u OPEN:__TEMP__ UDP6:[::1]:10002,shut-null
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nsw
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hout MD5 md5sum __TEMP__ | cut -d' ' -f1
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nsout NS_MD5 md5sum __TEMP_NS__ | cut -d' ' -f1
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check [ "__NS_MD5__" = "__MD5__" ]
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test UDP/IPv6: ns to host (recvmmsg/sendmmsg)
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hostb socat -u UDP6-LISTEN:10003,bind=[::1],null-eof OPEN:__TEMP__,create,trunc
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sleep 1
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ns socat -u OPEN:__TEMP_NS__ UDP6:[::1]:10003,shut-null
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hostw
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hout HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
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check [ "__HOST_MD5__" = "__MD5__" ]
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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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nsout GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
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nsout IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
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ns socat -u OPEN:__TEMP_NS__ UDP6:[__GW6__%__IFNAME__]:10003,shut-null
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hostw
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hout HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
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check [ "__HOST_MD5__" = "__MD5__" ]
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