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46 lines
2.3 KiB
Bash
Executable File
46 lines
2.3 KiB
Bash
Executable File
#!/bin/sh
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# -------------------------------------------------------------------------- #
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# Copyright 2002-2022, OpenNebula Project, OpenNebula Systems #
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# #
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# Licensed under the Apache License, Version 2.0 (the "License"); you may #
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# not use this file except in compliance with the License. You may obtain #
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# a copy of the License at #
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# #
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# http://www.apache.org/licenses/LICENSE-2.0 #
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# #
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# Unless required by applicable law or agreed to in writing, software #
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# distributed under the License is distributed on an "AS IS" BASIS, #
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
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# See the License for the specific language governing permissions and #
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# limitations under the License. #
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#--------------------------------------------------------------------------- #
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##############################################################################
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# WARNING: The arguments of the 'find' command below must be aligned with
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# 'ControlPath' and 'ControlPersist' options in oneadmin's SSH configuration
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# (/var/lib/one/.ssh/config) otherwise it will not have the desired effect!
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##############################################################################
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# This script enforce the cleanup of all oneadmin's SSH master sockets for the
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# persistent connections when they reach their age of one minute. It as a
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# workaround to a race condition inside the OpenSSH which occurs during the
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# closing of the master sockets.
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# Possibly related to: https://bugzilla.mindrot.org/show_bug.cgi?id=3067
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find /var/run/one/ssh-socks \
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-maxdepth 1 \
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-type s \
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-name 'ctl-M-*.sock' \
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-mmin +1 \
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-print | while read -r sockname ; do
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# atomic operation - no other ssh client should be disrupted
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mv -f "$sockname" "$sockname"~todelete
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# stop the multiplexing ('this' is just unnecessary gibberish)
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ssh -S "$sockname"~todelete -O stop this </dev/null >/dev/null
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# delete the old socket
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rm -f "$sockname"~todelete
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done
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