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40 lines
1.0 KiB
Bash
40 lines
1.0 KiB
Bash
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# $OpenBSD: keys-command.sh,v 1.2 2012/12/06 06:06:54 dtucker Exp $
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# Placed in the Public Domain.
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tid="authorized keys from command"
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if test -z "$SUDO" ; then
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echo "skipped (SUDO not set)"
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echo "need SUDO to create file in /var/run, test won't work without"
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exit 0
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fi
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# Establish a AuthorizedKeysCommand in /var/run where it will have
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# acceptable directory permissions.
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KEY_COMMAND="/var/run/keycommand_${LOGNAME}"
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cat << _EOF | $SUDO sh -c "cat > '$KEY_COMMAND'"
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#!/bin/sh
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test "x\$1" != "x${LOGNAME}" && exit 1
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exec cat "$OBJ/authorized_keys_${LOGNAME}"
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_EOF
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$SUDO chmod 0755 "$KEY_COMMAND"
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cp $OBJ/sshd_proxy $OBJ/sshd_proxy.bak
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(
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grep -vi AuthorizedKeysFile $OBJ/sshd_proxy.bak
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echo AuthorizedKeysFile none
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echo AuthorizedKeysCommand $KEY_COMMAND
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echo AuthorizedKeysCommandUser ${LOGNAME}
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) > $OBJ/sshd_proxy
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if [ -x $KEY_COMMAND ]; then
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${SSH} -F $OBJ/ssh_proxy somehost true
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if [ $? -ne 0 ]; then
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fail "connect failed"
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fi
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else
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echo "SKIPPED: $KEY_COMMAND not executable (/var/run mounted noexec?)"
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fi
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$SUDO rm -f $KEY_COMMAND
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