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mirror of synced 2024-11-25 22:36:04 +03:00

Update IKEv2 script

- New: Delete an IKEv2 client certificate using the IKEv2 helper script.
- Cleanup
This commit is contained in:
hwdsl2 2022-04-06 22:49:20 -05:00
parent 4458692f47
commit 78517c43c9

View File

@ -151,7 +151,7 @@ confirm_or_abort() {
show_header() {
cat <<'EOF'
IKEv2 Script Copyright (c) 2020-2022 Lin Song 6 Apr 2022
IKEv2 Script Copyright (c) 2020-2022 Lin Song 7 Apr 2022
EOF
}
@ -170,6 +170,7 @@ Options:
--exportclient [client name] export configuration for an existing client
--listclients list the names of existing clients
--revokeclient [client name] revoke a client certificate
--deleteclient [client name] delete a client certificate
--removeikev2 remove IKEv2 and delete all certificates and keys from the IPsec database
-h, --help show this help message and exit
@ -209,11 +210,11 @@ check_arguments() {
echo " To manage VPN clients, re-run this script without '--auto'." >&2
exit 1
fi
if [ "$((add_client + export_client + list_clients + revoke_client))" -gt 1 ]; then
show_usage "Invalid parameters. Specify only one of '--addclient', '--exportclient', '--listclients' or '--revokeclient'."
if [ "$((add_client + export_client + list_clients + revoke_client + delete_client))" -gt 1 ]; then
show_usage "Invalid parameters. Specify only one of '--addclient', '--exportclient', '--listclients', '--revokeclient' or '--deleteclient'."
fi
if [ "$remove_ikev2" = "1" ]; then
if [ "$((add_client + export_client + list_clients + revoke_client + use_defaults))" -gt 0 ]; then
if [ "$((add_client + export_client + list_clients + revoke_client + delete_client + use_defaults))" -gt 0 ]; then
show_usage "Invalid parameters. '--removeikev2' cannot be specified with other parameters."
fi
fi
@ -222,6 +223,7 @@ check_arguments() {
[ "$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."
[ "$delete_client" = "1" ] && exiterr "You must first set up IKEv2 before deleting a client certificate."
[ "$remove_ikev2" = "1" ] && exiterr "Cannot remove IKEv2 because it has not been set up on this server."
fi
if [ "$add_client" = "1" ]; then
@ -231,14 +233,14 @@ check_arguments() {
exiterr "Invalid client name. Client '$client_name' already exists."
fi
fi
if [ "$export_client" = "1" ] || [ "$revoke_client" = "1" ]; then
if [ "$export_client" = "1" ] || [ "$revoke_client" = "1" ] || [ "$delete_client" = "1" ]; then
get_server_address
if [ -z "$client_name" ] || ! check_client_name "$client_name" \
|| [ "$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 "$client_name"; then
if [ "$delete_client" = "0" ] && ! check_cert_status "$client_name"; then
printf '%s' "Error: Certificate '$client_name' " >&2
if printf '%s' "$cert_status" | grep -q "revoked"; then
if [ "$revoke_client" = "1" ]; then
@ -375,13 +377,16 @@ list_existing_clients() {
[ "$max_len" -lt "16" ] && max_len=16
printf "%-${max_len}s %s\n" 'Client Name' 'Certificate Status'
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=$(certutil -V -u C -d "$CERT_DB" -n "$line" | grep -o -e ' valid' -e expired -e revoked | sed -e 's/^ //')
[ -z "$client_status" ] && client_status=unknown
printf '%s\n' "$client_status"
done
if [ -n "$client_names" ]; then
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 "$CERT_DB" -n "$line" | grep -o -e ' valid' -e expired -e revoked | sed -e 's/^ //')
[ -z "$client_status" ] && client_status=unknown
printf '%s\n' "$client_status"
done
fi
client_count=$(printf '%s\n' "$client_names" | wc -l 2>/dev/null)
[ -z "$client_names" ] && client_count=0
if [ "$client_count" = "1" ]; then
printf '\n%s\n' "Total: 1 client"
elif [ -n "$client_count" ]; then
@ -453,6 +458,11 @@ enter_client_name() {
enter_client_name_for() {
echo
list_existing_clients
if [ "$client_count" = "0" ]; then
echo
echo "No IKEv2 clients in the IPsec database. Nothing to $1." >&2
exit 1
fi
get_server_address
echo
read -rp "Enter the name of the IKEv2 client to $1: " client_name
@ -464,6 +474,7 @@ enter_client_name_for() {
|| [ "$client_name" = "$server_addr" ] || ! check_cert_exists "$client_name"; then
echo "Invalid client name, or client does not exist."
else
[ "$1" = "delete" ] && break
printf '%s' "Error: Certificate '$client_name' "
if printf '%s' "$cert_status" | grep -q "revoked"; then
if [ "$1" = "revoke" ]; then
@ -639,11 +650,12 @@ Select an option:
2) Export configuration for an existing client
3) List existing clients
4) Revoke a client certificate
5) Remove IKEv2
6) Exit
5) Delete a client certificate
6) Remove IKEv2
7) Exit
EOF
read -rp "Option: " selected_option
until [[ "$selected_option" =~ ^[1-6]$ ]]; do
until [[ "$selected_option" =~ ^[1-7]$ ]]; do
printf '%s\n' "$selected_option: invalid selection."
read -rp "Option: " selected_option
done
@ -1183,6 +1195,11 @@ reload_crls() {
ipsec crls
}
delete_client_cert() {
certutil -F -d "$CERT_DB" -n "$client_name"
certutil -D -d "$CERT_DB" -n "$client_name" 2>/dev/null
}
print_client_added() {
cat <<EOF
@ -1211,6 +1228,10 @@ print_client_revoked() {
echo "Certificate '$client_name' revoked!"
}
print_client_deleted() {
echo "Certificate '$client_name' deleted!"
}
print_setup_complete() {
printf '\e[2K\e[1A\e[2K\r'
[ "$use_defaults" = "1" ] && printf '\e[1A\e[2K\e[1A\e[2K\e[1A\e[2K\r'
@ -1295,6 +1316,17 @@ EOF
confirm_or_abort "Are you sure you want to revoke '$client_name'? [y/N] "
}
confirm_delete_cert() {
cat <<EOF
WARNING: Deleting a client certificate from the IPsec database *WILL NOT* prevent
VPN client(s) from connecting using that certificate! For this use case,
you *MUST* revoke the client certificate instead of deleting it.
This *cannot* be undone!
EOF
confirm_or_abort "Are you sure you want to delete '$client_name'? [y/N] "
}
confirm_remove_ikev2() {
cat <<'EOF'
WARNING: This option will remove IKEv2 from this VPN server, but keep the IPsec/L2TP
@ -1344,6 +1376,7 @@ ikev2setup() {
export_client=0
list_clients=0
revoke_client=0
delete_client=0
remove_ikev2=0
while [ "$#" -gt 0 ]; do
case $1 in
@ -1373,6 +1406,12 @@ ikev2setup() {
shift
shift
;;
--deleteclient)
delete_client=1
client_name="$2"
shift
shift
;;
--removeikev2)
remove_ikev2=1
shift
@ -1434,6 +1473,14 @@ ikev2setup() {
exit 0
fi
if [ "$delete_client" = "1" ]; then
show_header
confirm_delete_cert
delete_client_cert
print_client_deleted
exit 0
fi
if [ "$remove_ikev2" = "1" ]; then
check_ipsec_conf
show_header
@ -1488,6 +1535,14 @@ ikev2setup() {
exit 0
;;
5)
enter_client_name_for delete
echo
confirm_delete_cert
delete_client_cert
print_client_deleted
exit 0
;;
6)
check_ipsec_conf
echo
confirm_remove_ikev2