Add tc-flower support.

Author: Alexander Chernikov

src/tc/actions/action.rs

@@ -290,7 +290,8 @@ pub enum TcActionOption {
     Nat(TcActionNatOption),
     /// Tunnel key options.
     ///
-    /// These options type can be used to assign encapsulation properties to the packet.
+    /// These options type can be used to assign encapsulation properties to
+    /// the packet.
     TunnelKey(TcActionTunnelKeyOption),
     /// Other action types not yet supported by this library.
     Other(DefaultNla),

src/tc/actions/tests/tunnel_key.rs

@@ -10,7 +10,8 @@ use crate::tc::{
 };
 use std::net::{Ipv4Addr, Ipv6Addr};
 
-//      > tc actions add action tunnel_key set id 33 src_ip 1.2.3.4 dst_ip 2.3.4.5 dst_port 4789 tos 1 ttl 2
+//      > tc actions add action tunnel_key set id 33 src_ip 1.2.3.4 dst_ip
+//      > 2.3.4.5 dst_port 4789 tos 1 ttl 2
 //      > tools/nl_dump.py dump_actions tunnel_key
 //      Note: 5.15 and 6.8 kernels do NOT set NLA_F_NESTED for TCA_ACT_OPTIONS
 #[test]
@@ -106,7 +107,8 @@ fn get_tunnel_key_vxlan_action_ipv4() {
     assert_eq!(buf, raw);
 }
 
-//      > tc actions add action tunnel_key set id 33 src_ip 2a00:1:: dst_ip 2a01:2:: dst_port 4789 tos 1 ttl 2
+//      > tc actions add action tunnel_key set id 33 src_ip 2a00:1:: dst_ip
+//      > 2a01:2:: dst_port 4789 tos 1 ttl 2
 //      > tools/nl_dump.py dump_actions tunnel_key
 //      Note: 5.15 and 6.8 kernels do NOT set NLA_F_NESTED for TCA_ACT_OPTIONS
 #[test]