From Fedora Project Wiki
1. Get a list of all supported services:
firewall-cmd --get-services
The result should be:
cluster-suite pop3s bacula-client smtp ipp radius bacula ftp mdns samba dhcpv6-client dns openvpn imaps samba-client http https telnet libvirt ssh ipsecipp-client amanda-client tftp-client dhcpv6 nfs tftp libvirt-tls