Expose unix ECN-related constants

Author: Ralith

src/unix/bsd/mod.rs

@@ -183,6 +183,8 @@ pub const IP_MULTICAST_IF: ::c_int = 9;
 pub const IP_MULTICAST_TTL: ::c_int = 10;
 pub const IP_MULTICAST_LOOP: ::c_int = 11;
 
+pub const IP_TOS: ::c_int = 1;
+
 pub const IPV6_UNICAST_HOPS: ::c_int = 4;
 pub const IPV6_MULTICAST_IF: ::c_int = 9;
 pub const IPV6_MULTICAST_HOPS: ::c_int = 10;

src/unix/mod.rs

@@ -296,6 +296,12 @@ pub const IPPROTO_UDP: ::c_int = 17;
 pub const IPPROTO_IP: ::c_int = 0;
 pub const IPPROTO_IPV6: ::c_int = 41;
 
+pub const IPTOS_ECN_MASK: u8 = 0x03;
+pub const IPTOS_ECN_NOT_ECT: u8 = 0x00;
+pub const IPTOS_ECN_ECT1: u8 = 0x01;
+pub const IPTOS_ECN_ECT0: u8 = 0x02;
+pub const IPTOS_ECN_CE: u8 = 0x03;
+
 pub const INADDR_LOOPBACK: in_addr_t = 2130706433;
 pub const INADDR_ANY: in_addr_t = 0;
 pub const INADDR_BROADCAST: in_addr_t = 4294967295;

src/unix/notbsd/mod.rs

@@ -623,9 +623,11 @@ pub const SOCK_RDM: ::c_int = 4;
 pub const IP_MULTICAST_IF: ::c_int = 32;
 pub const IP_MULTICAST_TTL: ::c_int = 33;
 pub const IP_MULTICAST_LOOP: ::c_int = 34;
+pub const IP_TOS: ::c_int = 1;
 pub const IP_TTL: ::c_int = 2;
 pub const IP_HDRINCL: ::c_int = 3;
 pub const IP_PKTINFO: ::c_int = 8;
+pub const IP_RECVTOS: ::c_int = 13;
 pub const IP_ADD_MEMBERSHIP: ::c_int = 35;
 pub const IP_DROP_MEMBERSHIP: ::c_int = 36;
 pub const IP_TRANSPARENT: ::c_int = 19;
@@ -1087,6 +1089,10 @@ f! {
     pub fn IPOPT_NUMBER(o: u8) -> u8 {
         o & IPOPT_NUMBER_MASK
     }
+
+    pub fn IPTOS_ECN(x: u8) -> u8 {
+        x & super::IPTOS_ECN_MASK
+    }
 }
 
 extern {