openfortivpn: add password2 parameter

Introduce password2 new parameter in openfortivpn to enable
introducing OTP or other DFA necessary for the VPN connection
established.Password2 parameter name and coding has been
copied from openconnect package.

Signed-off-by: Andoni Diaz de Cerio <andoni.diazdecerio@gmail.com>

Author: andoniElBicho

net/openfortivpn/files/openfortivpn.sh

@@ -19,6 +19,7 @@ proto_openfortivpn_init_config() {
 	proto_config_add_string "local_ip"
 	proto_config_add_string "username"
 	proto_config_add_string "password"
+	proto_config_add_string "password2"
 	proto_config_add_int "persist_int"
 	proto_config_add_string "trusted_cert"
 	proto_config_add_string "remote_status_check"
@@ -33,9 +34,9 @@ proto_openfortivpn_setup() {
 
 	local msg ifname ip server_ips pwfile callfile
 
-	local peeraddr port tunlink local_ip username password persist_int \
+	local peeraddr port tunlink local_ip username password password2 persist_int \
 	      trusted_cert remote_status_check saml_login saml_login_port
-	json_get_vars host peeraddr port tunlink local_ip username password persist_int \
+	json_get_vars host peeraddr port tunlink local_ip username password password2 persist_int \
 		      trusted_cert remote_status_check saml_login saml_login_port
 
 	ifname="vpn-$config"
@@ -127,6 +128,7 @@ proto_openfortivpn_setup() {
 	        mkdir -p '/var/etc/openfortivpn'
 	        pwfile="/var/etc/openfortivpn/$config.passwd"
 	        echo "$password" > "$pwfile"
+			[ -n "$password2" ] && echo "$password2" >> "$pwfile"
 	}
 
 	[ -n "$local_ip" ] || local_ip=192.0.2.1