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To test log files on a tmpfs mount, we need to unshare the mount namespace, which means using a context for the passt pane is not really practical at the moment, as we can't open a shell there, so we would have to encapsulate all the commands under 'unshare -rUm', plus the "inner" pasta command, running in turn a tcp_rr server. It might be worth fixing this by e.g. detecting we are trying to spawn an interactive shell and adding a special path in the context setup with some form of stdin redirection -- I'm not sure it's doable though. For this reason, add a new layout, using a context only for the host pane, while keeping the old command dispatch mechanism for the passt pane. We also need a new setup function that doesn't start pasta: we want to start and restart it with different options. Further, we need a 'pint' directive, to send an interrupt to the passt pane: add that in lib/test. All the tests before the one involving tmpfs and a detached mount namespace were also tested with the context mechanism. To make an eventual conversion easier, pass tcp_crr directly as a command on pasta's command line where feasible. While at it, fix the comment to the teardown_pasta() function. The new test set can be semi-conveniently run as: ./run pasta_options/log_to_file and it checks basic log creation, size of the log file after flooding it with debug entries, rotations, and basic consistency after rotations, on both an existing filesystem and a tmpfs, chosen as it doesn't support collapsing data ranges via fallocate(), hence triggering the fall-back mechanism for logging rotation. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
91 lines
2.3 KiB
Plaintext
91 lines
2.3 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_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__
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passt exit
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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__
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passt exit
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check [ $(cat __LOG_FILE__ | wc -l) -eq 1 ]
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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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passt exit
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passt umount __STATEDIR__/t
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passt exit
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