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feat: Add IPv6 support

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Joost van den Broek 2022-04-28 17:49:08 +02:00 committed by Juan Luis Baptiste
parent ceab4779d9
commit 5ba18a151e
1 changed files with 22 additions and 7 deletions
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17
run.sh
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@ -49,6 +49,9 @@ if [ "${SMTP_PORT}" = "465" ]; then
add_config_value "smtp_tls_security_level" "encrypt" add_config_value "smtp_tls_security_level" "encrypt"
fi fi
# Bind to both IPv4 and IPv4
add_config_value "inet_protocols" "all"
# Create sasl_passwd file with auth credentials # Create sasl_passwd file with auth credentials
if [ ! -f /etc/postfix/sasl_passwd -a ! -z "${SMTP_USERNAME}" ]; then if [ ! -f /etc/postfix/sasl_passwd -a ! -z "${SMTP_USERNAME}" ]; then
grep -q "${SMTP_SERVER}" /etc/postfix/sasl_passwd > /dev/null 2>&1 grep -q "${SMTP_SERVER}" /etc/postfix/sasl_passwd > /dev/null 2>&1
@ -76,11 +79,23 @@ fi
#Check for subnet restrictions #Check for subnet restrictions
nets='10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16' nets='10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16'
if [ ! -z "${SMTP_NETWORKS}" ]; then if [ ! -z "${SMTP_NETWORKS}" ]; then
declare ipv6re="^((([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|\
([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|\
([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|\
([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|\
:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}|\
::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|\
(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|\
(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))/[0-9]{1,3})$"
for i in $(sed 's/,/\ /g' <<<$SMTP_NETWORKS); do for i in $(sed 's/,/\ /g' <<<$SMTP_NETWORKS); do
if grep -Eq "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}/[0-9]{1,2}" <<<$i ; then if grep -Eq "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}/[0-9]{1,2}" <<<$i ; then
nets+=", $i" nets+=", $i"
elif grep -Eq "$ipv6re" <<<$i ; then
readarray -d \/ -t arr < <(printf '%s' "$i")
nets+=", [${arr[0]}]/${arr[1]}"
else else
echo "$i is not in proper IPv4 subnet format. Ignoring." echo "$i is not in proper IPv4 or IPv6 subnet format. Ignoring."
fi fi
done done
fi fi