openssh/tests/pam_ssh_agent_auth/runtest.sh
Petr Šabata 81d24c0aa7 RHEL 9.0.0 Alpha bootstrap
The content of this branch was automatically imported from Fedora ELN
with the following as its source:
https://src.fedoraproject.org/rpms/openssh#a048fcc3d0920b13b79be801efbae08388212c5f
2020-10-15 22:26:16 +02:00

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#!/bin/bash
# vim: dict+=/usr/share/beakerlib/dictionary.vim cpt=.,w,b,u,t,i,k
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#
# runtest.sh of /CoreOS/openssh/Sanity/pam_ssh_agent_auth
# Description: This is a basic sanity test for pam_ssh_agent_auth
# Author: Jakub Jelen <jjelen@redhat.com>
#
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#
# Copyright (c) 2015 Red Hat, Inc.
#
# This program is free software: you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation, either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be
# useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
# PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see http://www.gnu.org/licenses/.
#
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Include Beaker environment
. /usr/bin/rhts-environment.sh || exit 1
. /usr/share/beakerlib/beakerlib.sh || exit 1
PACKAGE="openssh"
PAM_SUDO="/etc/pam.d/sudo"
PAM_SSHD="/etc/pam.d/sshd"
PAM_MODULE="pam_save_ssh_var"
SUDOERS_CFG="/etc/sudoers.d/01_pam_ssh_auth"
SSHD_CFG="/etc/ssh/sshd_config"
USER="testuser$RANDOM"
PASS="testpassxy4re.3298fhdsaf"
AUTH_KEYS="/etc/security/authorized_keys"
AK_COMMAND_BIN="/root/ak.sh"
AK_COMMAND_KEYS="/root/akeys"
declare -a KEYS=("rsa" "ecdsa")
rlJournalStart
rlPhaseStartSetup
rlAssertRpm $PACKAGE
rlAssertRpm pam_ssh_agent_auth
rlImport distribution/fips
rlServiceStart sshd
rlRun "TmpDir=\$(mktemp -d)" 0 "Creating tmp directory"
rlRun "cp ${PAM_MODULE}.c $TmpDir/"
rlRun "pushd $TmpDir"
rlFileBackup --clean $PAM_SUDO /etc/sudoers /etc/sudoers.d/ /etc/security/ $AUTH_KEYS
rlRun "sed -i '1 a\
auth sufficient pam_ssh_agent_auth.so file=$AUTH_KEYS' $PAM_SUDO"
rlRun "echo 'Defaults env_keep += \"SSH_AUTH_SOCK\"' > $SUDOERS_CFG"
rlRun "echo 'Defaults !requiretty' >> $SUDOERS_CFG"
grep '^%wheel' /etc/sudoers || \
rlRun "echo '%wheel ALL=(ALL) ALL' >> $SUDOERS_CFG"
rlRun "useradd $USER -G wheel"
rlRun "echo $PASS |passwd --stdin $USER"
rlPhaseEnd
if ! fipsIsEnabled; then
KEYS+=("dsa")
fi
for KEY in "${KEYS[@]}"; do
rlPhaseStartTest "Test with key type $KEY"
rlRun "su $USER -c 'ssh-keygen -t $KEY -f ~/.ssh/my_id_$KEY -N \"\"'" 0
# Without authorized_keys, the authentication should fail
rlRun -s "su $USER -c 'eval \`ssh-agent\`; sudo id; ssh-agent -k'" 0
rlAssertNotGrep "uid=0(root) gid=0(root)" $rlRun_LOG
# Append the keys only to make sure we can match also the non-first line
rlRun "cat ~$USER/.ssh/my_id_${KEY}.pub >> $AUTH_KEYS"
rlRun -s "su $USER -c 'eval \`ssh-agent\`; ssh-add ~/.ssh/my_id_$KEY; sudo id; ssh-agent -k'"
rlAssertGrep "uid=0(root) gid=0(root)" $rlRun_LOG
rlPhaseEnd
done
if rlIsRHEL '<6.8' || ( rlIsRHEL '<7.3' && rlIsRHEL 7 ) ; then
: # not available
else
rlPhaseStartSetup "Setup for authorized_keys_command"
rlFileBackup --namespace ak_command $PAM_SUDO
rlRun "rm -f $AUTH_KEYS"
cat >$AK_COMMAND_BIN <<_EOF
#!/bin/bash
cat $AK_COMMAND_KEYS
_EOF
rlRun "chmod +x $AK_COMMAND_BIN"
rlRun "sed -i 's|.*pam_ssh_agent_auth.*|auth sufficient pam_ssh_agent_auth.so authorized_keys_command=$AK_COMMAND_BIN authorized_keys_command_user=root|' $PAM_SUDO"
rlRun "cat $PAM_SUDO"
rlPhaseEnd
for KEY in "${KEYS[@]}"; do
rlPhaseStartTest "Test authorized_keys_command with key type $KEY (bz1299555, bz1317858)"
rlRun "cat ~$USER/.ssh/my_id_${KEY}.pub >$AK_COMMAND_KEYS"
rlRun -s "su $USER -c 'eval \`ssh-agent\`; ssh-add ~/.ssh/my_id_$KEY; sudo id; ssh-agent -k'"
rlAssertGrep "uid=0(root) gid=0(root)" $rlRun_LOG
rlPhaseEnd
done
rlPhaseStartCleanup "Cleanup for authorized_keys_command"
rlFileRestore --namespace ak_command
rlRun "rm -f $AK_COMMAND_BIN $AK_COMMAND_KEYS"
rlPhaseEnd
fi
if rlIsRHEL '>=7.3'; then # not in Fedora anymore
rlPhaseStartTest "bz1312304 - Exposing information about succesful auth"
rlRun "rlFileBackup --namespace exposing $PAM_SSHD"
rlRun "rlFileBackup --namespace exposing $SSHD_CFG"
rlRun "rlFileBackup --namespace exposing /root/.ssh/"
rlRun "rm -f ~/.ssh/id_rsa*"
rlRun "ssh-keygen -f ~/.ssh/id_rsa -N \"\"" 0
rlRun "ssh-keyscan localhost >~/.ssh/known_hosts" 0
USER_AK_FILE=~$USER/.ssh/authorized_keys
rlRun "cat ~/.ssh/id_rsa.pub >$USER_AK_FILE"
rlRun "chown $USER:$USER $USER_AK_FILE"
rlRun "chmod 0600 $USER_AK_FILE"
rlRun "gcc -fPIC -DPIC -shared -rdynamic -o $PAM_MODULE.o $PAM_MODULE.c"
rlRun "test -d /lib64/security && cp $PAM_MODULE.o /lib64/security/" 0,1
rlRun "test -d /lib/security && cp $PAM_MODULE.o /lib/security/" 0,1
rlRun "sed -i '1 i auth optional $PAM_MODULE.o' $PAM_SSHD"
# pam-and-env should expose information to both PAM and environmental variable;
# we will be testing only env variable here for the time being,
rlRun "echo 'ExposeAuthenticationMethods pam-and-env' >>$SSHD_CFG"
rlRun "sed -i '/^ChallengeResponseAuthentication/ d' $SSHD_CFG"
rlRun "service sshd restart"
rlWaitForSocket 22 -t 5
rlRun -s "ssh -i ~/.ssh/id_rsa $USER@localhost \"env|grep SSH_USER_AUTH\"" 0 \
"Environment variable SSH_USER_AUTH is set"
rlAssertGrep "^SSH_USER_AUTH=publickey:" $rlRun_LOG
rlRun "rm -f $rlRun_LOG"
# pam-only should expose information only to PAM and not to environment variable
rlRun "sed -i 's/pam-and-env/pam-only/' $SSHD_CFG"
rlRun "echo 'AuthenticationMethods publickey,keyboard-interactive:pam' >>$SSHD_CFG"
rlRun "service sshd restart"
rlWaitForSocket 22 -t 5
ssh_with_pass() {
ssh_args=("-i /root/.ssh/id_rsa")
ssh_args+=("$USER@localhost")
cat >ssh.exp <<_EOF
#!/usr/bin/expect -f
set timeout 5
spawn ssh ${ssh_args[*]} "echo CONNECTED; env|grep SSH_USER_AUTH"
expect {
-re {.*[Pp]assword.*} { send -- "$PASS\r"; exp_continue }
timeout { exit 1 }
eof { exit 0 }
}
_EOF
rlRun -s "expect -f ssh.exp"
}
#rlRun -s "ssh ${ssh_args[*]} \"echo CONNECTED; env|grep SSH_USER_AUTH\"" 1 \
#"Environment variable SSH_USER_AUTH is NOT set"
rlRun "ssh_with_pass"
rlRun "grep -q CONNECTED $rlRun_LOG" 0 "Connection was successful"
rlAssertGrep "^SSH_USER_AUTH: 'publickey:" /tmp/SSH_USER_AUTH
rlRun "cat /tmp/SSH_USER_AUTH"
rlRun "rm -f $rlRun_LOG /tmp/SSH_USER_AUTH"
for pm in /lib64/security/$PAM_MODULE.o /lib/security/$PAM_MODULE.o; do
rlRun "test -e $pm && rm -f $pm" 0,1
done
rlRun "rlFileRestore --namespace exposing"
rlPhaseEnd
fi
rlPhaseStartCleanup
rlRun "popd"
rlRun "rm -r $TmpDir" 0 "Removing tmp directory"
rlRun "userdel -fr $USER"
rlFileRestore
rlServiceRestore sshd
rlPhaseEnd
rlJournalPrintText
rlJournalEnd