167 lines
4.7 KiB
Bash
167 lines
4.7 KiB
Bash
# $OpenBSD: channel-timeout.sh,v 1.2 2024/01/09 22:19:36 djm Exp $
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# Placed in the Public Domain.
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tid="channel timeout"
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# XXX not comprehensive. Still need -R -L agent X11 forwarding + interactive
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rm -f $OBJ/finished.* $OBJ/mux.*
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MUXPATH=$OBJ/mux.$$
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open_mux() {
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${SSH} -nNfM -oControlPath=$MUXPATH -F $OBJ/ssh_proxy "$@" somehost ||
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fatal "open mux failed"
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test -e $MUXPATH || fatal "mux socket $MUXPATH not established"
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}
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close_mux() {
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test -e $MUXPATH || fatal "mux socket $MUXPATH missing"
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${SSH} -qF $OBJ/ssh_proxy -oControlPath=$MUXPATH -O exit somehost ||
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fatal "could not terminate mux process"
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for x in 1 2 3 4 5 6 7 8 9 10 ; do
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test -e $OBJ/mux && break
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sleep 1
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done
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test -e $MUXPATH && fatal "mux did not clean up"
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}
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mux_client() {
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${SSH} -F $OBJ/ssh_proxy -oControlPath=$MUXPATH somehost "$@"
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}
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rm -f $OBJ/sshd_proxy.orig
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cp $OBJ/sshd_proxy $OBJ/sshd_proxy.orig
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verbose "no timeout"
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${SSH} -F $OBJ/ssh_proxy somehost "sleep 5 ; exit 23"
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r=$?
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if [ $r -ne 23 ]; then
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fail "ssh failed"
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fi
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verbose "command timeout"
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(cat $OBJ/sshd_proxy.orig ; echo "ChannelTimeout session:command=1") \
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> $OBJ/sshd_proxy
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verbose "${SSH} -vvv -F $OBJ/ssh_proxy somehost"
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${SSH} -F $OBJ/ssh_proxy somehost "sleep 5 ; exit 23"
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r=$?
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# return value is -1 which is being mapped back to 127 instead of 255 for some reason
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if [ $r -ne 127 ]; then
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fail "ssh returned unexpected error code $r"
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fi
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verbose "command long timeout"
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(cat $OBJ/sshd_proxy.orig ; echo "ChannelTimeout session:command=60") \
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> $OBJ/sshd_proxy
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${SSH} -F $OBJ/ssh_proxy somehost "exit 23"
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r=$?
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if [ $r -ne 23 ]; then
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fail "ssh returned unexpected error code $r"
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fi
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verbose "command wildcard timeout"
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(cat $OBJ/sshd_proxy.orig ; echo "ChannelTimeout session:*=1") \
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> $OBJ/sshd_proxy
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${SSH} -F $OBJ/ssh_proxy somehost "sleep 5 ; exit 23"
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r=$?
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# return value is -1 which is being mapped back to 127 instead of 255 for some reason
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if [ $r -ne 127 ]; then
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fail "ssh returned unexpected error code $r"
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fi
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verbose "command irrelevant timeout"
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(cat $OBJ/sshd_proxy.orig ; echo "ChannelTimeout session:shell=1") \
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> $OBJ/sshd_proxy
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${SSH} -F $OBJ/ssh_proxy somehost "sleep 5 ; exit 23"
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r=$?
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if [ $r -ne 23 ]; then
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fail "ssh failed"
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fi
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if [ "$os" != "windows" ]; then
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if config_defined DISABLE_FD_PASSING ; then
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verbose "skipping multiplexing tests"
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else
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verbose "multiplexed command timeout"
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(cat $OBJ/sshd_proxy.orig ; echo "ChannelTimeout session:command=1") \
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> $OBJ/sshd_proxy
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open_mux
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mux_client "sleep 5 ; exit 23"
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r=$?
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if [ $r -ne 255 ]; then
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fail "ssh returned unexpected error code $r"
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fi
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close_mux
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verbose "irrelevant multiplexed command timeout"
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(cat $OBJ/sshd_proxy.orig ; echo "ChannelTimeout session:shell=1") \
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> $OBJ/sshd_proxy
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open_mux
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mux_client "sleep 5 ; exit 23"
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r=$?
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if [ $r -ne 23 ]; then
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fail "ssh returned unexpected error code $r"
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fi
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close_mux
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verbose "global command timeout"
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(cat $OBJ/sshd_proxy.orig ; echo "ChannelTimeout global=10") \
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> $OBJ/sshd_proxy
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open_mux
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mux_client "sleep 1 ; echo ok ; sleep 1; echo ok; sleep 60; touch $OBJ/finished.1" >/dev/null &
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mux_client "sleep 60 ; touch $OBJ/finished.2" >/dev/null &
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mux_client "sleep 2 ; touch $OBJ/finished.3" >/dev/null &
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wait
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test -f $OBJ/finished.1 && fail "first mux process completed"
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test -f $OBJ/finished.2 && fail "second mux process completed"
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test -f $OBJ/finished.3 || fail "third mux process did not complete"
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close_mux
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fi
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fi
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# Set up a "slow sftp server" that sleeps before executing the real one.
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cat > $OBJ/slow-sftp-server.sh << _EOF
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#!/bin/sh
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sleep 5
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$SFTPSERVER
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_EOF
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chmod a+x $OBJ/slow-sftp-server.sh
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verbose "sftp no timeout"
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(grep -vi subsystem.*sftp $OBJ/sshd_proxy.orig;
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echo "Subsystem sftp $OBJ/slow-sftp-server.sh" ) > $OBJ/sshd_proxy
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rm -f ${COPY}
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$SFTP -qS "$TEST_SHELL_PATH $SSH" -F $OBJ/ssh_proxy somehost:$DATA $COPY
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r=$?
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if [ $r -ne 0 ]; then
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fail "sftp failed"
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fi
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cmp $DATA $COPY || fail "corrupted copy"
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verbose "sftp timeout"
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(grep -vi subsystem.*sftp $OBJ/sshd_proxy.orig;
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echo "ChannelTimeout session:subsystem:sftp=1" ;
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echo "Subsystem sftp $OBJ/slow-sftp-server.sh" ) > $OBJ/sshd_proxy
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rm -f ${COPY}
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$SFTP -qS "$TEST_SHELL_PATH $SSH" -F $OBJ/ssh_proxy somehost:$DATA $COPY
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r=$?
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if [ $r -eq 0 ]; then
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fail "sftp succeeded unexpectedly"
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fi
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test -f $COPY && cmp $DATA $COPY && fail "intact copy"
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verbose "sftp irrelevant timeout"
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(grep -vi subsystem.*sftp $OBJ/sshd_proxy.orig;
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echo "ChannelTimeout session:subsystem:command=1" ;
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echo "Subsystem sftp $OBJ/slow-sftp-server.sh" ) > $OBJ/sshd_proxy
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rm -f ${COPY}
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$SFTP -qS "$TEST_SHELL_PATH $SSH" -F $OBJ/ssh_proxy somehost:$DATA $COPY
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r=$?
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if [ $r -ne 0 ]; then
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fail "sftp failed"
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fi
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cmp $DATA $COPY || fail "corrupted copy"
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