lorax/tests/cli/lib/lib.sh

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#!/usr/bin/env bash
# Monkey-patch beakerlib to exit on first failure if COMPOSER_TEST_FAIL_FAST is
# set. https://github.com/beakerlib/beakerlib/issues/42
if [ "$COMPOSER_TEST_FAIL_FAST" == "1" ]; then
eval "original$(declare -f __INTERNAL_LogAndJournalFail)"
__INTERNAL_LogAndJournalFail () {
original__INTERNAL_LogAndJournalFail
# end test somewhat cleanly so that beakerlib logs the FAIL correctly
rlPhaseEnd
rlJournalEnd
exit 1
}
fi
# a generic helper function unifying the specific checks executed on a running
# image instance
verify_image() {
SSH_USER="$1"
SSH_MACHINE="$2"
SSH_OPTS="-o StrictHostKeyChecking=no $3"
rlLogInfo "verify_image: SSH_OPTS:'$SSH_OPTS' SSH_USER:'$SSH_USER' SSH_MACHINE: '$SSH_MACHINE'"
check_root_account "$@"
check_kernel_cmdline "$@"
}
check_root_account() {
# Try to SSH to a remote machine first using root account using password-based
# auth (this is expected to fail) and then using key-based auth with the
# supplied username to check content of /etc/shadow and audit.log.
#
# use: check_root_account <user> <machine> [ssh options]
ROOT_ACCOUNT_LOCKED=${ROOT_ACCOUNT_LOCKED:-1}
if [[ "$SSH_USER" == "" || "$SSH_MACHINE" == "" ]]; then
rlFail "check_root_account: Missing user or machine parameter."
return 1
fi
if [ $ROOT_ACCOUNT_LOCKED == 0 ]; then
rlRun -t -c "ssh $SSH_OPTS ${SSH_USER}@${SSH_MACHINE} \"sudo grep '^root::' /etc/shadow\"" \
0 "Password for root account in /etc/shadow is empty"
else
# ssh returns 255 in case of any ssh error, so it's better to grep the specific error message
rlRun -t -c "ssh $SSH_OPTS -o PubkeyAuthentication=no root@${SSH_MACHINE} 2>&1 | grep -i 'permission denied ('" \
0 "Can't ssh to '$SSH_MACHINE' as root using password-based auth"
rlRun -t -c "ssh $SSH_OPTS ${SSH_USER}@${SSH_MACHINE} \"sudo passwd --status root | grep -E '^root\s+LK?'\"" \
0 "root account is disabled in /etc/shadow"
rlRun -t -c "ssh $SSH_OPTS ${SSH_USER}@${SSH_MACHINE} \"sudo grep 'USER_LOGIN.*acct=\\\"root\\\".*terminal=ssh.*res=failed' /var/log/audit/audit.log\"" \
0 "audit.log contains entry about unsuccessful root login"
# We modify the default sshd settings on live ISO, so we can only check the default empty password setting
# outside of live ISO
rlRun -t -c "ssh $SSH_OPTS ${SSH_USER}@${SSH_MACHINE} 'sudo grep -E \"^[[:blank:]]*PermitEmptyPasswords[[:blank:]]*yes\" /etc/ssh/sshd_config'" 1 \
"Login with empty passwords is disabled in sshd config file"
fi
rlRun -t -c "ssh $SSH_OPTS ${SSH_USER}@${SSH_MACHINE} 'cat /etc/redhat-release'"
}
# verify that a kernel command line argument was passed from the blueprint (this is added to the blueprint in ../test_cli.sh)
check_kernel_cmdline() {
rlRun -t -c "ssh $SSH_OPTS ${SSH_USER}@${SSH_MACHINE} 'grep custom_cmdline_arg /proc/cmdline'" 0 \
"System booted from the image contains specified parameter on kernel command line"
}