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test/pasta_options/log_to_file checks that pasta truncates its log file
when started. It does that by starting pasta with a log file once, then
starting it again and checking that after the second round, the log file
has only one line: the startup banner from the second invocation.
However, this test will break if the second invocation logs any additional
messages at startup. This can easily happen on a host with multiple
network interfaces due to the "Multiple default route" informational
messages added in 639fdf06e ("netlink: Fix selection of template
interface"). I believe it could also happen on a host without IPv6
connectivity due to the "Couldn't pick external interface" messages, though
I haven't confirmed this.
Make the log file test more robust, by not testing for a single line, but
instead explicitly testing for the PID of the second pasta invocation in
the banner line.
Link: https://bugs.passt.top/show_bug.cgi?id=88
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
91 lines
2.3 KiB
Plaintext
91 lines
2.3 KiB
Plaintext
# 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/pasta_options/log_to_file - Check log creation, rotations and consistency
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#
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# Copyright (c) 2022 Red Hat GmbH
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# Author: Stefano Brivio <sbrivio@redhat.com>
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htools wc tcp_rr tail cut tr sort
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def flood_log_server
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passtb tcp_crr --nolog -P 10001 -C 10002 -6
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sleep 1
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endef
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def flood_log_client
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host tcp_crr --nolog -P 10001 -C 10002 -6 -c -H ::1
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endef
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def check_log_size_mountns
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pout SIZE cat __LOG_FILE__ | wc -c
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check [ __SIZE__ -gt $((50 * 1024)) ]
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check [ __SIZE__ -lt $((100 * 1024)) ]
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endef
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test Log creation
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set PORTS -t 10001,10002 -u 10001,10002
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set LOG_FILE __STATEDIR__/pasta.log
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passt ./pasta -l __LOG_FILE__ -- /bin/true
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check [ -s __LOG_FILE__ ]
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test Log truncated on creation
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passt ./pasta -l __LOG_FILE__ -- /bin/true & wait
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pout PID2 echo $!
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check head -1 __LOG_FILE__ | grep '^pasta .* [(]__PID2__[)]$'
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test Maximum log size
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passtb ./pasta --config-net -d -f -l __LOG_FILE__ --log-size $((100 * 1024)) -- sh -c 'while true; do tcp_crr --nolog -P 10001 -C 10002 -6; done'
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sleep 1
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flood_log_client
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check [ $(cat __LOG_FILE__ | wc -c) -gt $((50 * 1024)) ]
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check [ $(cat __LOG_FILE__ | wc -c) -lt $((100 * 1024)) ]
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flood_log_client
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check [ $(cat __LOG_FILE__ | wc -c) -gt $((50 * 1024)) ]
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check [ $(cat __LOG_FILE__ | wc -c) -lt $((100 * 1024)) ]
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flood_log_client
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check [ $(cat __LOG_FILE__ | wc -c) -gt $((50 * 1024)) ]
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check [ $(cat __LOG_FILE__ | wc -c) -lt $((100 * 1024)) ]
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pint
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test Timestamp consistency after rotations
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check tail -n +2 __LOG_FILE__ | cut -f1 -d' ' | tr -d [.:] | sort -c
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test Maximum log size on tmpfs (no FALLOC_FL_COLLAPSE_RANGE)
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passt unshare -rUm
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passt mkdir __STATEDIR__/t
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passt mount -t tmpfs none __STATEDIR__/t
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set LOG_FILE __STATEDIR__/t/log
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passt ./pasta --config-net -d -l __LOG_FILE__ --log-size $((100 * 1024))
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flood_log_server
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flood_log_client
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check_log_size_mountns
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flood_log_server
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flood_log_client
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check_log_size_mountns
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flood_log_server
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flood_log_client
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check_log_size_mountns
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test Timestamp consistency after rotations (no FALLOC_FL_COLLAPSE_RANGE)
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check tail -n +2 __LOG_FILE__ | cut -f1 -d' ' | tr -d [.:] | sort -c
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passtb exit
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sleep 1
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passt umount __STATEDIR__/t
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passt exit
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