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improve console lockdown info output

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Patrick Schleizer 2019-12-31 02:53:02 -05:00
parent 788914de95
commit 20697db3ee
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1 changed files with 30 additions and 21 deletions
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51
usr/lib/security-misc/pam_tally2-info
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@ -5,28 +5,37 @@
grep_result="$(grep "accessfile=/etc/security/access-security-misc.conf" /etc/pam.d/common-account 2>/dev/null)"
if ! echo "$grep_result" | grep -q "#" ; then
## https://forums.whonix.org/t/etc-security-hardening-console-lockdown/8592
## Check if grep matched something.
if [ ! "$grep_result" = "" ]; then
## Yes, grep matched.
if id --name --groups --zero "$PAM_USER" | grep --quiet --null-data --line-regexp --fixed-strings "console"; then
console_allowed=true
fi
if id --name --groups --zero "$PAM_USER" | grep --quiet --null-data --line-regexp --fixed-strings "console-unrestricted"; then
console_allowed=true
fi
if [ ! "$console_allowed" = "true" ]; then
echo "$0: ERROR: PAM_USER: '$PAM_USER' is not a member of group 'console'" >&2
echo "$0: To unlock, run the following command as superuser:" >&2
echo "$0: (If you still have a sudo/root shell somewhere.)" >&2
echo "" >&2
echo "addgroup $PAM_USER console" >&2
echo "" >&2
echo "$0: However, possibly unlock procedure is required." >&2
echo "$0: First boot into recovery mode at grub boot menu and then run above command." >&2
echo "$0: See also:" >&2
echo "https://www.whonix.org/wiki/root#console" >&2
echo "" >&2
exit 0
## Check if not out commented.
if ! echo "$grep_result" | grep -q "#" ; then
## Not out commented indeed.
## https://forums.whonix.org/t/etc-security-hardening-console-lockdown/8592
if id --name --groups --zero "$PAM_USER" | grep --quiet --null-data --line-regexp --fixed-strings "console"; then
console_allowed=true
fi
if id --name --groups --zero "$PAM_USER" | grep --quiet --null-data --line-regexp --fixed-strings "console-unrestricted"; then
console_allowed=true
fi
if [ ! "$console_allowed" = "true" ]; then
echo "$0: ERROR: PAM_USER: '$PAM_USER' is not a member of group 'console'" >&2
echo "$0: To unlock, run the following command as superuser:" >&2
echo "$0: (If you still have a sudo/root shell somewhere.)" >&2
echo "" >&2
echo "addgroup $PAM_USER console" >&2
echo "" >&2
echo "$0: However, possibly unlock procedure is required." >&2
echo "$0: First boot into recovery mode at grub boot menu and then run above command." >&2
echo "$0: See also:" >&2
echo "https://www.whonix.org/wiki/root#console" >&2
echo "" >&2
exit 0
fi
fi
fi