81 lines
2.1 KiB
Bash
Executable file
81 lines
2.1 KiB
Bash
Executable file
#!/bin/bash
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#
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# Copyright (C) 2024 Masatake YAMATO <yamato@redhat.com>
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#
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# This file is part of util-linux.
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#
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# This file is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This file is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# This test case is based on the issue (#1884) submitted by @hesch
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TS_TOPDIR="${0%/*}/../.."
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TS_DESC="list the namespace pointed by a file descriptor"
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. "$TS_TOPDIR"/functions.sh
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ts_init "$*"
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ts_check_test_command "$TS_CMD_LSNS"
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ts_check_test_command "$TS_CMD_LSFD"
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ts_check_test_command "$TS_HELPER_MKFDS"
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ts_check_test_command "$TS_HELPER_SYSINFO"
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ts_check_prog "ip"
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ts_skip_nonroot
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if [ "$($TS_HELPER_SYSINFO ns-gettype-ok)" == "0" ]; then
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ts_skip "NS_GET_NSTYPE ioctl cmd not available"
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fi
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if [ "$($TS_HELPER_SYSINFO ns-getuserns-ok)" == "0" ]; then
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ts_skip "NS_GET_USERNS ioctl cmd not available"
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fi
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FD=4
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NS=LSNS-TEST-FILEDESC-NS
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FILE=/run/netns/$NS
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PID=
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cleanup()
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{
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ip netns delete $NS 2> /dev/null || :
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}
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cleanup
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if ! ip netns add $NS; then
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ts_skip "failed to make a namespace"
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fi
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trap "cleanup" EXIT
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{
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coproc MKFDS { "$TS_HELPER_MKFDS" ro-regular-file $FD file=$FILE; }
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if read -u ${MKFDS[0]} PID; then
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# Make the namespace invisible from the file system tree.
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cleanup
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lsfd_expr="PID == ${PID} and FD == $FD"
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lsfd_inode=$(${TS_CMD_LSFD} -n --raw -o INODE -Q "${lsfd_expr}")
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lsns_expr="NS == $lsfd_inode"
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lsns_output=$(${TS_CMD_LSNS} -n --raw -o TYPE,NPROCS,USER -Q "${lsns_expr}")
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if ! [ "${lsns_output}" == "net 0 root" ]; then
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echo lsfd_inode: $lsfd_inode
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echo lsns_output: $lsns_output
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echo LSFD:
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${TS_CMD_LSFD} -Q "PID == $PID"
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echo LSNS:
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LSNS_DEBUG=all ${TS_CMD_LSNS}
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echo lsns_status: $?
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fi
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echo DONE >&"${MKFDS[1]}"
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fi
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wait "${MKFDS_PID}"
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} > $TS_OUTPUT 2>&1
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ts_finalize
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