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130 lines
3.6 KiB
Bash
130 lines
3.6 KiB
Bash
# $OpenBSD: percent.sh,v 1.17 2023/03/27 03:56:50 dtucker Exp $
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# Placed in the Public Domain.
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tid="percent expansions"
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if [ -x "/usr/xpg4/bin/id" ]; then
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PATH=/usr/xpg4/bin:$PATH
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export PATH
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fi
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USER=`id -u -n`
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USERID=`id -u`
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HOST=`hostname | cut -f1 -d.`
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HOSTNAME=`hostname`
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HASH=""
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# Localcommand is evaluated after connection because %T is not available
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# until then. Because of this we use a different method of exercising it,
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# and we can't override the remote user otherwise authentication will fail.
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# We also have to explicitly enable it.
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echo "permitlocalcommand yes" >> $OBJ/ssh_proxy
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trial()
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{
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opt="$1"; arg="$2"
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expect=`echo "$3" | sed 's|^//|/|'` # approximate realpath
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trace "test $opt=$arg $expect"
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rm -f $OBJ/actual
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got=""
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case "$opt" in
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localcommand)
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${SSH} -F $OBJ/ssh_proxy -o $opt="echo '$arg' >$OBJ/actual" \
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somehost true
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got=`cat $OBJ/actual`
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;;
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userknownhostsfile)
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# Move the userknownhosts file to what the expansion says,
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# make sure ssh works then put it back.
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mv "$OBJ/known_hosts" "$OBJ/$expect"
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${SSH} -F $OBJ/ssh_proxy -o $opt="$OBJ/$arg" somehost true && \
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got="$expect"
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mv "$OBJ/$expect" "$OBJ/known_hosts"
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;;
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matchexec)
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(cat $OBJ/ssh_proxy && \
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echo "Match Exec \"echo '$arg' >$OBJ/actual\"") \
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>$OBJ/ssh_proxy_match
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${SSH} -F $OBJ/ssh_proxy_match remuser@somehost true || true
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got=`cat $OBJ/actual`
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;;
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*forward)
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# LocalForward and RemoteForward take two args and only
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# operate on Unix domain socket paths
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got=`${SSH} -F $OBJ/ssh_proxy -o $opt="/$arg /$arg" -G \
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remuser@somehost | awk '$1=="'$opt'"{print $2" "$3}'`
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expect="/$expect /$expect"
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;;
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*)
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got=`${SSH} -F $OBJ/ssh_proxy -o $opt="$arg" -G \
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remuser@somehost | awk '$1=="'$opt'"{print $2}'`
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esac
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if [ "$got" != "$expect" ]; then
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fail "$opt=$arg expect $expect got $got"
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fi
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}
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for i in matchexec localcommand remotecommand controlpath identityagent \
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forwardagent localforward remoteforward revokedhostkeys \
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userknownhostsfile; do
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verbose $tid $i percent
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case "$i" in
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localcommand|userknownhostsfile)
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# Any test that's going to actually make a connection needs
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# to use the real username.
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REMUSER=$USER ;;
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*)
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REMUSER=remuser ;;
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esac
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if [ "$i" = "$localcommand" ]; then
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trial $i '%T' NONE
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fi
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# Matches implementation in readconf.c:ssh_connection_hash()
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if [ ! -z "${OPENSSL_BIN}" ]; then
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HASH=`printf "${HOSTNAME}127.0.0.1${PORT}$REMUSER" |
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$OPENSSL_BIN sha1 | cut -f2 -d' '`
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trial $i '%C' $HASH
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fi
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trial $i '%%' '%'
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trial $i '%i' $USERID
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trial $i '%h' 127.0.0.1
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trial $i '%L' $HOST
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trial $i '%l' $HOSTNAME
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trial $i '%n' somehost
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trial $i '%k' localhost-with-alias
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trial $i '%p' $PORT
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trial $i '%r' $REMUSER
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trial $i '%u' $USER
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# We can't specify a full path outside the regress dir, so skip tests
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# containing %d for UserKnownHostsFile
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if [ "$i" != "userknownhostsfile" ]; then
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trial $i '%d' $HOME
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in='%%/%i/%h/%d/%L/%l/%n/%p/%r/%u'
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out="%/$USERID/127.0.0.1/$HOME/$HOST/$HOSTNAME/somehost/$PORT/$REMUSER/$USER"
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if [ ! -z "${HASH}" ]; then
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in="$in/%C"
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out="$out/$HASH"
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fi
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trial $i "$in" "$out"
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fi
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done
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# Subset of above since we don't expand shell-style variables on anything that
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# runs a command because the shell will expand those.
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for i in controlpath identityagent forwardagent localforward remoteforward \
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userknownhostsfile; do
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verbose $tid $i dollar
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FOO=bar
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export FOO
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trial $i '${FOO}' $FOO
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done
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# A subset of options support tilde expansion
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for i in controlpath identityagent forwardagent; do
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verbose $tid $i tilde
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trial $i '~' $HOME/
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trial $i '~/.ssh' $HOME/.ssh
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done
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