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mirror of synced 2024-11-26 14:56:08 +03:00

Update IKEv2 script

- Cleanup
This commit is contained in:
hwdsl2 2022-02-14 23:45:13 -06:00
parent 7c0d08442e
commit f072e8312a

View File

@ -38,6 +38,13 @@ check_root() {
fi
}
check_container() {
in_container=0
if grep -qs "hwdsl2" /opt/src/run.sh; then
in_container=1
fi
}
check_os() {
os_type=centos
os_arch=$(uname -m | tr -dc 'A-Za-z0-9_-')
@ -91,6 +98,37 @@ EOF
fi
}
check_libreswan() {
ipsec_ver=$(ipsec --version 2>/dev/null)
if ( ! grep -qs "hwdsl2 VPN script" /etc/sysctl.conf && ! grep -qs "hwdsl2" /opt/src/run.sh ) \
|| ! printf '%s' "$ipsec_ver" | grep -q "Libreswan"; then
cat 1>&2 <<'EOF'
Error: Your must first set up the IPsec VPN server before setting up IKEv2.
See: https://github.com/hwdsl2/setup-ipsec-vpn
EOF
exit 1
fi
}
check_swan_ver() {
swan_ver=$(printf '%s' "$ipsec_ver" | sed -e 's/.*Libreswan U\?//' -e 's/\( (\|\/K\).*//')
if ! printf '%s\n%s' "3.23" "$swan_ver" | sort -C -V; then
cat 1>&2 <<EOF
Error: Libreswan version '$swan_ver' is not supported.
This script requires Libreswan 3.23 or newer.
To update Libreswan, run:
wget https://git.io/vpnupgrade -qO vpnup.sh && sudo sh vpnup.sh
EOF
exit 1
fi
}
check_utils_exist() {
command -v certutil >/dev/null 2>&1 || exiterr "'certutil' not found. Abort."
command -v crlutil >/dev/null 2>&1 || exiterr "'crlutil' not found. Abort."
command -v pk12util >/dev/null 2>&1 || exiterr "'pk12util' not found. Abort."
}
abort_and_exit() {
echo "Abort. No changes were made." >&2
exit 1
@ -109,48 +147,10 @@ confirm_or_abort() {
esac
}
check_libreswan() {
ipsec_ver=$(ipsec --version 2>/dev/null)
swan_ver=$(printf '%s' "$ipsec_ver" | sed -e 's/.*Libreswan U\?//' -e 's/\( (\|\/K\).*//')
if ( ! grep -qs "hwdsl2 VPN script" /etc/sysctl.conf && ! grep -qs "hwdsl2" /opt/src/run.sh ) \
|| ! printf '%s' "$ipsec_ver" | grep -q "Libreswan"; then
cat 1>&2 <<'EOF'
Error: Your must first set up the IPsec VPN server before setting up IKEv2.
See: https://github.com/hwdsl2/setup-ipsec-vpn
EOF
exit 1
fi
}
check_swan_ver() {
if ! printf '%s\n%s' "3.23" "$swan_ver" | sort -C -V; then
cat 1>&2 <<EOF
Error: Libreswan version '$swan_ver' is not supported.
This script requires Libreswan 3.23 or newer.
To update Libreswan, run:
wget https://git.io/vpnupgrade -qO vpnup.sh && sudo sh vpnup.sh
EOF
exit 1
fi
}
check_utils_exist() {
command -v certutil >/dev/null 2>&1 || exiterr "'certutil' not found. Abort."
command -v crlutil >/dev/null 2>&1 || exiterr "'crlutil' not found. Abort."
command -v pk12util >/dev/null 2>&1 || exiterr "'pk12util' not found. Abort."
}
check_container() {
in_container=0
if grep -qs "hwdsl2" /opt/src/run.sh; then
in_container=1
fi
}
show_header() {
cat <<'EOF'
IKEv2 Script Copyright (c) 2020-2022 Lin Song 12 Feb 2022
IKEv2 Script Copyright (c) 2020-2022 Lin Song 15 Feb 2022
EOF
}
@ -179,7 +179,7 @@ EOF
}
check_ikev2_exists() {
grep -qs "conn ikev2-cp" /etc/ipsec.conf || [ -f /etc/ipsec.d/ikev2.conf ]
grep -qs "conn ikev2-cp" "$IPSEC_CONF" || [ -f "$IKEV2_CONF" ]
}
check_client_name() {
@ -188,72 +188,61 @@ check_client_name() {
}
check_cert_exists() {
certutil -L -d sql:/etc/ipsec.d -n "$1" >/dev/null 2>&1
certutil -L -d "$CERT_DB" -n "$1" >/dev/null 2>&1
}
check_cert_exists_and_exit() {
if certutil -L -d sql:/etc/ipsec.d -n "$1" >/dev/null 2>&1; then
if certutil -L -d "$CERT_DB" -n "$1" >/dev/null 2>&1; then
echo "Error: Certificate '$1' already exists." >&2
abort_and_exit
fi
}
check_cert_status() {
cert_status=$(certutil -V -u C -d sql:/etc/ipsec.d -n "$1")
cert_status=$(certutil -V -u C -d "$CERT_DB" -n "$1")
}
check_arguments() {
if [ "$use_defaults" = "1" ]; then
if check_ikev2_exists; then
if [ "$use_defaults" = "1" ] && check_ikev2_exists; then
echo "Warning: Ignoring parameter '--auto'. Use '-h' for usage information." >&2
fi
fi
if [ "$((add_client + export_client + list_clients + revoke_client))" -gt 1 ]; then
show_usage "Invalid parameters. Specify only one of '--addclient', '--exportclient', '--listclients' or '--revokeclient'."
fi
if [ "$remove_ikev2" = "1" ]; then
if [ "$((add_client + export_client + list_clients + revoke_client + use_defaults))" -gt 0 ]; then
show_usage "Invalid parameters. '--removeikev2' cannot be specified with other parameters."
fi
fi
if ! check_ikev2_exists; then
[ "$add_client" = "1" ] && exiterr "You must first set up IKEv2 before adding a client."
[ "$export_client" = "1" ] && exiterr "You must first set up IKEv2 before exporting a client."
[ "$list_clients" = "1" ] && exiterr "You must first set up IKEv2 before listing clients."
[ "$revoke_client" = "1" ] && exiterr "You must first set up IKEv2 before revoking a client certificate."
[ "$remove_ikev2" = "1" ] && exiterr "Cannot remove IKEv2 because it has not been set up on this server."
fi
if [ "$add_client" = "1" ]; then
check_ikev2_exists || exiterr "You must first set up IKEv2 before adding a client."
if [ -z "$client_name" ] || ! check_client_name "$client_name"; then
exiterr "Invalid client name. Use one word only, no special characters except '-' and '_'."
elif check_cert_exists "$client_name"; then
exiterr "Invalid client name. Client '$client_name' already exists."
fi
fi
if [ "$export_client" = "1" ]; then
check_ikev2_exists || exiterr "You must first set up IKEv2 before exporting a client."
if [ "$export_client" = "1" ] || [ "$revoke_client" = "1" ]; then
get_server_address
if [ -z "$client_name" ] || ! check_client_name "$client_name" \
|| [ "$client_name" = "IKEv2 VPN CA" ] || [ "$client_name" = "$server_addr" ] \
|| [ "$client_name" = "$CA_NAME" ] || [ "$client_name" = "$server_addr" ] \
|| ! check_cert_exists "$client_name"; then
exiterr "Invalid client name, or client does not exist."
fi
if ! check_cert_status "$client_name"; then
printf '%s' "Error: Certificate '$client_name' " >&2
if printf '%s' "$cert_status" | grep -q "revoked"; then
echo "has been revoked." >&2
elif printf '%s' "$cert_status" | grep -q "expired"; then
echo "has expired." >&2
else
echo "is invalid." >&2
fi
exit 1
fi
fi
if [ "$list_clients" = "1" ]; then
check_ikev2_exists || exiterr "You must first set up IKEv2 before listing clients."
fi
if [ "$revoke_client" = "1" ]; then
check_ikev2_exists || exiterr "You must first set up IKEv2 before revoking a client certificate."
get_server_address
if [ -z "$client_name" ] || ! check_client_name "$client_name" \
|| [ "$client_name" = "IKEv2 VPN CA" ] || [ "$client_name" = "$server_addr" ] \
|| ! check_cert_exists "$client_name"; then
exiterr "Invalid client name, or client does not exist."
fi
if ! check_cert_status "$client_name"; then
printf '%s' "Error: Certificate '$client_name' " >&2
if printf '%s' "$cert_status" | grep -q "revoked"; then
echo "has already been revoked." >&2
else
echo "has been revoked." >&2
fi
elif printf '%s' "$cert_status" | grep -q "expired"; then
echo "has expired." >&2
else
@ -262,12 +251,6 @@ check_arguments() {
exit 1
fi
fi
if [ "$remove_ikev2" = "1" ]; then
check_ikev2_exists || exiterr "Cannot remove IKEv2 because it has not been set up on this server."
if [ "$((add_client + export_client + list_clients + revoke_client + use_defaults))" -gt 0 ]; then
show_usage "Invalid parameters. '--removeikev2' cannot be specified with other parameters."
fi
fi
}
check_server_dns_name() {
@ -283,9 +266,50 @@ check_custom_dns() {
fi
}
check_and_set_client_name() {
if [ -n "$VPN_CLIENT_NAME" ]; then
client_name="$VPN_CLIENT_NAME"
check_client_name "$client_name" \
|| exiterr "Invalid client name. Use one word only, no special characters except '-' and '_'."
else
client_name=vpnclient
fi
check_cert_exists "$client_name" && exiterr "Client '$client_name' already exists."
}
set_server_address() {
if [ -n "$VPN_DNS_NAME" ]; then
use_dns_name=1
server_addr="$VPN_DNS_NAME"
else
use_dns_name=0
get_server_ip
check_ip "$public_ip" || exiterr "Cannot detect this server's public IP."
server_addr="$public_ip"
fi
check_cert_exists_and_exit "$server_addr"
}
set_dns_servers() {
if [ -n "$VPN_DNS_SRV1" ] && [ -n "$VPN_DNS_SRV2" ]; then
dns_server_1="$VPN_DNS_SRV1"
dns_server_2="$VPN_DNS_SRV2"
dns_servers="$VPN_DNS_SRV1 $VPN_DNS_SRV2"
elif [ -n "$VPN_DNS_SRV1" ]; then
dns_server_1="$VPN_DNS_SRV1"
dns_server_2=""
dns_servers="$VPN_DNS_SRV1"
else
dns_server_1=8.8.8.8
dns_server_2=8.8.4.4
dns_servers="8.8.8.8 8.8.4.4"
fi
}
show_welcome() {
cat <<'EOF'
Welcome! Use this script to set up IKEv2 on your IPsec VPN server.
I need to ask you a few questions before starting setup.
You can use the default options and just press enter if you are OK with them.
@ -341,15 +365,15 @@ get_server_ip() {
}
get_server_address() {
server_addr=$(grep -s "leftcert=" /etc/ipsec.d/ikev2.conf | cut -f2 -d=)
[ -z "$server_addr" ] && server_addr=$(grep -s "leftcert=" /etc/ipsec.conf | cut -f2 -d=)
server_addr=$(grep -s "leftcert=" "$IKEV2_CONF" | cut -f2 -d=)
[ -z "$server_addr" ] && server_addr=$(grep -s "leftcert=" "$IPSEC_CONF" | cut -f2 -d=)
check_ip "$server_addr" || check_dns_name "$server_addr" || exiterr "Could not get VPN server address."
}
list_existing_clients() {
echo "Checking for existing IKEv2 client(s)..."
echo
client_names=$(certutil -L -d sql:/etc/ipsec.d | grep -v -e '^$' -e 'IKEv2 VPN CA' -e '\.' | tail -n +3 | cut -f1 -d ' ')
client_names=$(certutil -L -d "$CERT_DB" | grep -v -e '^$' -e "$CA_NAME" -e '\.' | tail -n +3 | cut -f1 -d ' ')
max_len=$(printf '%s\n' "$client_names" | wc -L 2>/dev/null)
[[ $max_len =~ ^[0-9]+$ ]] || max_len=64
[ "$max_len" -gt "64" ] && max_len=64
@ -358,7 +382,7 @@ list_existing_clients() {
printf "%-${max_len}s %s\n" '------------' '-------------------'
printf '%s\n' "$client_names" | LC_ALL=C sort | while read -r line; do
printf "%-${max_len}s " "$line"
client_status=$(certutil -V -u C -d sql:/etc/ipsec.d -n "$line" | grep -o -e ' valid' -e expired -e revoked | sed -e 's/^ //')
client_status=$(certutil -V -u C -d "$CERT_DB" -n "$line" | grep -o -e ' valid' -e expired -e revoked | sed -e 's/^ //')
[ -z "$client_status" ] && client_status=unknown
printf '%s\n' "$client_status"
done
@ -402,33 +426,26 @@ enter_client_name() {
echo
echo "Provide a name for the IKEv2 VPN client."
echo "Use one word only, no special characters except '-' and '_'."
if [ "$1" = "with_defaults" ]; then
read -rp "Client name: [vpnclient] " client_name
[ -z "$client_name" ] && client_name=vpnclient
else
read -rp "Client name: " client_name
[ -z "$client_name" ] && abort_and_exit
fi
while ! check_client_name "$client_name" || check_cert_exists "$client_name"; do
if ! check_client_name "$client_name"; then
echo "Invalid client name."
else
echo "Invalid client name. Client '$client_name' already exists."
fi
if [ "$1" = "with_defaults" ]; then
read -rp "Client name: [vpnclient] " client_name
[ -z "$client_name" ] && client_name=vpnclient
else
read -rp "Client name: " client_name
[ -z "$client_name" ] && abort_and_exit
done
}
enter_client_name_with_defaults() {
echo
echo "Provide a name for the IKEv2 VPN client."
echo "Use one word only, no special characters except '-' and '_'."
read -rp "Client name: [vpnclient] " client_name
[ -z "$client_name" ] && client_name=vpnclient
while ! check_client_name "$client_name" || check_cert_exists "$client_name"; do
if ! check_client_name "$client_name"; then
echo "Invalid client name."
else
echo "Invalid client name. Client '$client_name' already exists."
fi
read -rp "Client name: [vpnclient] " client_name
[ -z "$client_name" ] && client_name=vpnclient
done
}
@ -439,10 +456,10 @@ enter_client_name_for() {
echo
read -rp "Enter the name of the IKEv2 client to $1: " client_name
[ -z "$client_name" ] && abort_and_exit
while ! check_client_name "$client_name" || [ "$client_name" = "IKEv2 VPN CA" ] \
while ! check_client_name "$client_name" || [ "$client_name" = "$CA_NAME" ] \
|| [ "$client_name" = "$server_addr" ] || ! check_cert_exists "$client_name" \
|| ! check_cert_status "$client_name"; do
if ! check_client_name "$client_name" || [ "$client_name" = "IKEv2 VPN CA" ] \
if ! check_client_name "$client_name" || [ "$client_name" = "$CA_NAME" ] \
|| [ "$client_name" = "$server_addr" ] || ! check_cert_exists "$client_name"; then
echo "Invalid client name, or client does not exist."
else
@ -464,7 +481,7 @@ enter_client_name_for() {
done
}
enter_client_cert_validity() {
enter_client_validity() {
echo
echo "Specify the validity period (in months) for this client certificate."
read -rp "Enter a number between 1 and 120: [120] " client_validity
@ -578,8 +595,7 @@ EOF
}
check_config_password() {
config_file="/etc/ipsec.d/.vpnconfig"
if grep -qs '^IKEV2_CONFIG_PASSWORD=.\+' "$config_file"; then
if grep -qs '^IKEV2_CONFIG_PASSWORD=.\+' "$CONFIG_FILE"; then
use_config_password=1
else
use_config_password=0
@ -592,7 +608,7 @@ cat <<'EOF'
IKEv2 client config files contain the client certificate, private key and CA certificate.
This script can optionally generate a random password to protect these files.
Future client config files will also be protected using the same password.
Future client config files will also be protected using this password.
EOF
printf "Protect client config files using a password? [y/N] "
@ -680,10 +696,10 @@ create_client_cert() {
bigecho2 "Generating client certificate..."
sleep 1
certutil -z <(head -c 1024 /dev/urandom) \
-S -c "IKEv2 VPN CA" -n "$client_name" \
-S -c "$CA_NAME" -n "$client_name" \
-s "O=IKEv2 VPN,CN=$client_name" \
-k rsa -g 3072 -v "$client_validity" \
-d sql:/etc/ipsec.d -t ",," \
-d "$CERT_DB" -t ",," \
--keyUsage digitalSignature,keyEncipherment \
--extKeyUsage serverAuth,clientAuth -8 "$client_name" >/dev/null 2>&1 || exiterr "Failed to create client certificate."
}
@ -697,13 +713,14 @@ get_p12_password() {
if [ "$use_config_password" = "0" ]; then
create_p12_password
else
config_file="/etc/ipsec.d/.vpnconfig"
p12_password=$(grep -s '^IKEV2_CONFIG_PASSWORD=.\+' "$config_file" | tail -n 1 | cut -f2- -d= | sed -e "s/^'//" -e "s/'$//")
p12_password=$(grep -s '^IKEV2_CONFIG_PASSWORD=.\+' "$CONFIG_FILE" | tail -n 1 | cut -f2- -d= | sed -e "s/^'//" -e "s/'$//")
if [ -z "$p12_password" ]; then
create_p12_password
mkdir -p /etc/ipsec.d
printf '%s\n' "IKEV2_CONFIG_PASSWORD='$p12_password'" >> "$config_file"
chmod 600 "$config_file"
if [ -n "$CONFIG_FILE" ] && [ -n "$CONFIG_DIR" ]; then
mkdir -p "$CONFIG_DIR"
printf '%s\n' "IKEV2_CONFIG_PASSWORD='$p12_password'" >> "$CONFIG_FILE"
chmod 600 "$CONFIG_FILE"
fi
fi
fi
}
@ -713,25 +730,22 @@ export_p12_file() {
get_p12_password
p12_file="$export_dir$client_name.p12"
p12_file_enc="$export_dir$client_name.enc.p12"
pk12util -W "$p12_password" -d sql:/etc/ipsec.d -n "$client_name" -o "$p12_file_enc" >/dev/null || exit 1
pk12util -W "$p12_password" -d "$CERT_DB" -n "$client_name" -o "$p12_file_enc" >/dev/null || exit 1
if [ "$os_type" = "alpine" ] || { [ "$os_type" = "ubuntu" ] && [ "$os_ver" = "11" ]; }; then
pem_file="$export_dir$client_name.temp.pem"
openssl pkcs12 -in "$p12_file_enc" -out "$pem_file" -passin "pass:$p12_password" -passout "pass:$p12_password" || exit 1
openssl pkcs12 -keypbe PBE-SHA1-3DES -certpbe PBE-SHA1-3DES -export -in "$pem_file" -out "$p12_file_enc" \
-name "$client_name" -passin "pass:$p12_password" -passout "pass:$p12_password" || exit 1
if [ "$use_config_password" = "1" ]; then
/bin/cp -f "$p12_file_enc" "$p12_file"
else
if [ "$use_config_password" = "0" ]; then
openssl pkcs12 -keypbe PBE-SHA1-3DES -certpbe PBE-SHA1-3DES -export -in "$pem_file" -out "$p12_file" \
-name "$client_name" -passin "pass:$p12_password" -passout pass: || exit 1
fi
/bin/rm -f "$pem_file"
else
elif [ "$use_config_password" = "0" ]; then
pk12util -W "" -d "$CERT_DB" -n "$client_name" -o "$p12_file" >/dev/null || exit 1
fi
if [ "$use_config_password" = "1" ]; then
/bin/cp -f "$p12_file_enc" "$p12_file"
else
pk12util -W "" -d sql:/etc/ipsec.d -n "$client_name" -o "$p12_file" >/dev/null || exit 1
fi
fi
if [ "$export_to_home_dir" = "1" ]; then
chown "$SUDO_USER:$SUDO_USER" "$p12_file"
@ -776,8 +790,8 @@ create_mobileconfig() {
p12_base64=$(base64 -w 52 "$p12_file_enc")
/bin/rm -f "$p12_file_enc"
[ -z "$p12_base64" ] && exiterr "Could not encode .p12 file."
ca_base64=$(certutil -L -d sql:/etc/ipsec.d -n "IKEv2 VPN CA" -a | grep -v CERTIFICATE)
[ -z "$ca_base64" ] && exiterr "Could not encode IKEv2 VPN CA certificate."
ca_base64=$(certutil -L -d "$CERT_DB" -n "$CA_NAME" -a | grep -v CERTIFICATE)
[ -z "$ca_base64" ] && exiterr "Could not encode $CA_NAME certificate."
uuid1=$(uuidgen)
[ -z "$uuid1" ] && exiterr "Could not generate UUID value."
mc_file="$export_dir$client_name.mobileconfig"
@ -922,7 +936,7 @@ $ca_base64
</dict>
</array>
<key>PayloadDisplayName</key>
<string>IKEv2 VPN ($server_addr)</string>
<string>IKEv2 VPN $server_addr</string>
<key>PayloadIdentifier</key>
<string>com.apple.vpn.managed.$(uuidgen)</string>
<key>PayloadRemovalDisallowed</key>
@ -952,7 +966,7 @@ create_android_profile() {
cat > "$sswan_file" <<EOF
{
"uuid": "$uuid2",
"name": "IKEv2 VPN ($server_addr)",
"name": "IKEv2 VPN $server_addr",
"type": "ikev2-cert",
"remote": {
"addr": "$server_addr"
@ -985,10 +999,10 @@ export_client_config() {
create_ca_server_certs() {
bigecho2 "Generating CA and server certificates..."
certutil -z <(head -c 1024 /dev/urandom) \
-S -x -n "IKEv2 VPN CA" \
-s "O=IKEv2 VPN,CN=IKEv2 VPN CA" \
-S -x -n "$CA_NAME" \
-s "O=IKEv2 VPN,CN=$CA_NAME" \
-k rsa -g 3072 -v 120 \
-d sql:/etc/ipsec.d -t "CT,," -2 >/dev/null 2>&1 <<ANSWERS || exiterr "Failed to create CA certificate."
-d "$CERT_DB" -t "CT,," -2 >/dev/null 2>&1 <<ANSWERS || exiterr "Failed to create CA certificate."
y
N
@ -996,19 +1010,19 @@ ANSWERS
sleep 1
if [ "$use_dns_name" = "1" ]; then
certutil -z <(head -c 1024 /dev/urandom) \
-S -c "IKEv2 VPN CA" -n "$server_addr" \
-S -c "$CA_NAME" -n "$server_addr" \
-s "O=IKEv2 VPN,CN=$server_addr" \
-k rsa -g 3072 -v 120 \
-d sql:/etc/ipsec.d -t ",," \
-d "$CERT_DB" -t ",," \
--keyUsage digitalSignature,keyEncipherment \
--extKeyUsage serverAuth \
--extSAN "dns:$server_addr" >/dev/null 2>&1 || exiterr "Failed to create server certificate."
else
certutil -z <(head -c 1024 /dev/urandom) \
-S -c "IKEv2 VPN CA" -n "$server_addr" \
-S -c "$CA_NAME" -n "$server_addr" \
-s "O=IKEv2 VPN,CN=$server_addr" \
-k rsa -g 3072 -v 120 \
-d sql:/etc/ipsec.d -t ",," \
-d "$CERT_DB" -t ",," \
--keyUsage digitalSignature,keyEncipherment \
--extKeyUsage serverAuth \
--extSAN "ip:$server_addr,dns:$server_addr" >/dev/null 2>&1 || exiterr "Failed to create server certificate."
@ -1017,11 +1031,11 @@ ANSWERS
add_ikev2_connection() {
bigecho2 "Adding a new IKEv2 connection..."
if ! grep -qs '^include /etc/ipsec\.d/\*\.conf$' /etc/ipsec.conf; then
echo >> /etc/ipsec.conf
echo 'include /etc/ipsec.d/*.conf' >> /etc/ipsec.conf
if ! grep -qs '^include /etc/ipsec\.d/\*\.conf$' "$IPSEC_CONF"; then
echo >> "$IPSEC_CONF"
echo 'include /etc/ipsec.d/*.conf' >> "$IPSEC_CONF"
fi
cat > /etc/ipsec.d/ikev2.conf <<EOF
cat > "$IKEV2_CONF" <<EOF
conn ikev2-cp
left=%defaultroute
@ -1049,27 +1063,27 @@ conn ikev2-cp
encapsulation=yes
EOF
if [ "$use_dns_name" = "1" ]; then
cat >> /etc/ipsec.d/ikev2.conf <<EOF
cat >> "$IKEV2_CONF" <<EOF
leftid=@$server_addr
EOF
else
cat >> /etc/ipsec.d/ikev2.conf <<EOF
cat >> "$IKEV2_CONF" <<EOF
leftid=$server_addr
EOF
fi
if [ -n "$dns_server_2" ]; then
cat >> /etc/ipsec.d/ikev2.conf <<EOF
cat >> "$IKEV2_CONF" <<EOF
modecfgdns="$dns_servers"
EOF
else
cat >> /etc/ipsec.d/ikev2.conf <<EOF
cat >> "$IKEV2_CONF" <<EOF
modecfgdns=$dns_server_1
EOF
fi
if [ "$mobike_enable" = "1" ]; then
echo " mobike=yes" >> /etc/ipsec.d/ikev2.conf
echo " mobike=yes" >> "$IKEV2_CONF"
else
echo " mobike=no" >> /etc/ipsec.d/ikev2.conf
echo " mobike=no" >> "$IKEV2_CONF"
fi
}
@ -1104,18 +1118,18 @@ restart_ipsec_service() {
}
create_crl() {
if ! crlutil -L -d sql:/etc/ipsec.d -n "IKEv2 VPN CA" >/dev/null 2>&1; then
crlutil -G -d sql:/etc/ipsec.d -n "IKEv2 VPN CA" -c /dev/null >/dev/null
if ! crlutil -L -d "$CERT_DB" -n "$CA_NAME" >/dev/null 2>&1; then
crlutil -G -d "$CERT_DB" -n "$CA_NAME" -c /dev/null >/dev/null
fi
sleep 2
}
add_client_cert_to_crl() {
sn_txt=$(certutil -L -d sql:/etc/ipsec.d -n "$client_name" | grep -A 1 'Serial Number' | tail -n 1)
sn_txt=$(certutil -L -d "$CERT_DB" -n "$client_name" | grep -A 1 'Serial Number' | tail -n 1)
sn_hex=$(printf '%s' "$sn_txt" | sed -e 's/^ *//' -e 's/://g')
sn_dec=$((16#$sn_hex))
[ -z "$sn_dec" ] && exiterr "Could not find serial number of client certificate."
crlutil -M -d sql:/etc/ipsec.d -n "IKEv2 VPN CA" >/dev/null <<EOF || exiterr "Failed to add client certificate to CRL."
crlutil -M -d "$CERT_DB" -n "$CA_NAME" >/dev/null <<EOF || exiterr "Failed to add client certificate to CRL."
addcert $sn_dec $(date -u +%Y%m%d%H%M%SZ)
EOF
}
@ -1219,9 +1233,9 @@ EOF
}
check_ipsec_conf() {
if grep -qs "conn ikev2-cp" /etc/ipsec.conf; then
cat 1>&2 <<'EOF'
Error: IKEv2 configuration section found in /etc/ipsec.conf.
if grep -qs "conn ikev2-cp" "$IPSEC_CONF"; then
cat 1>&2 <<EOF
Error: IKEv2 configuration section found in $IPSEC_CONF.
This script cannot automatically remove IKEv2 from this server.
To manually remove IKEv2, see https://git.io/ikev2
EOF
@ -1251,23 +1265,22 @@ EOF
}
delete_ikev2_conf() {
bigecho "Deleting /etc/ipsec.d/ikev2.conf..."
/bin/rm -f /etc/ipsec.d/ikev2.conf
bigecho "Deleting $IKEV2_CONF..."
/bin/rm -f "$IKEV2_CONF"
}
delete_certificates() {
echo
bigecho "Deleting certificates and keys from the IPsec database..."
certutil -L -d sql:/etc/ipsec.d | grep -v -e '^$' -e 'IKEv2 VPN CA' | tail -n +3 | cut -f1 -d ' ' | while read -r line; do
certutil -F -d sql:/etc/ipsec.d -n "$line"
certutil -D -d sql:/etc/ipsec.d -n "$line" 2>/dev/null
certutil -L -d "$CERT_DB" | grep -v -e '^$' -e "$CA_NAME" | tail -n +3 | cut -f1 -d ' ' | while read -r line; do
certutil -F -d "$CERT_DB" -n "$line"
certutil -D -d "$CERT_DB" -n "$line" 2>/dev/null
done
crlutil -D -d sql:/etc/ipsec.d -n "IKEv2 VPN CA" 2>/dev/null
certutil -F -d sql:/etc/ipsec.d -n "IKEv2 VPN CA"
certutil -D -d sql:/etc/ipsec.d -n "IKEv2 VPN CA" 2>/dev/null
config_file="/etc/ipsec.d/.vpnconfig"
if grep -qs '^IKEV2_CONFIG_PASSWORD=.\+' "$config_file"; then
sed -i '/IKEV2_CONFIG_PASSWORD=/d' "$config_file"
crlutil -D -d "$CERT_DB" -n "$CA_NAME" 2>/dev/null
certutil -F -d "$CERT_DB" -n "$CA_NAME"
certutil -D -d "$CERT_DB" -n "$CA_NAME" 2>/dev/null
if grep -qs '^IKEV2_CONFIG_PASSWORD=.\+' "$CONFIG_FILE"; then
sed -i '/IKEV2_CONFIG_PASSWORD=/d' "$CONFIG_FILE"
fi
}
@ -1331,6 +1344,13 @@ ikev2setup() {
esac
done
CA_NAME="IKEv2 VPN CA"
CERT_DB="sql:/etc/ipsec.d"
CONFIG_DIR="/etc/ipsec.d"
CONFIG_FILE="/etc/ipsec.d/.vpnconfig"
IKEV2_CONF="/etc/ipsec.d/ikev2.conf"
IPSEC_CONF="/etc/ipsec.conf"
check_arguments
check_config_password
get_export_dir
@ -1393,7 +1413,7 @@ ikev2setup() {
case $selected_option in
1)
enter_client_name
enter_client_cert_validity
enter_client_validity
select_config_password
echo
create_client_cert
@ -1447,15 +1467,15 @@ ikev2setup() {
esac
fi
check_cert_exists_and_exit "IKEv2 VPN CA"
check_cert_exists_and_exit "$CA_NAME"
if [ "$use_defaults" = "0" ]; then
show_header
show_welcome
enter_server_address
check_cert_exists_and_exit "$server_addr"
enter_client_name_with_defaults
enter_client_cert_validity
enter_client_name with_defaults
enter_client_validity
enter_custom_dns
check_mobike_support
select_mobike
@ -1464,40 +1484,12 @@ ikev2setup() {
else
check_server_dns_name
check_custom_dns
if [ -n "$VPN_CLIENT_NAME" ]; then
client_name="$VPN_CLIENT_NAME"
check_client_name "$client_name" \
|| exiterr "Invalid client name. Use one word only, no special characters except '-' and '_'."
else
client_name=vpnclient
fi
check_cert_exists "$client_name" && exiterr "Client '$client_name' already exists."
check_and_set_client_name
client_validity=120
show_header
show_start_setup
if [ -n "$VPN_DNS_NAME" ]; then
use_dns_name=1
server_addr="$VPN_DNS_NAME"
else
use_dns_name=0
get_server_ip
check_ip "$public_ip" || exiterr "Cannot detect this server's public IP."
server_addr="$public_ip"
fi
check_cert_exists_and_exit "$server_addr"
if [ -n "$VPN_DNS_SRV1" ] && [ -n "$VPN_DNS_SRV2" ]; then
dns_server_1="$VPN_DNS_SRV1"
dns_server_2="$VPN_DNS_SRV2"
dns_servers="$VPN_DNS_SRV1 $VPN_DNS_SRV2"
elif [ -n "$VPN_DNS_SRV1" ]; then
dns_server_1="$VPN_DNS_SRV1"
dns_server_2=""
dns_servers="$VPN_DNS_SRV1"
else
dns_server_1=8.8.8.8
dns_server_2=8.8.4.4
dns_servers="8.8.8.8 8.8.4.4"
fi
set_server_address
set_dns_servers
check_mobike_support
mobike_enable="$mobike_support"
fi