diff --git a/libc-test/build.rs b/libc-test/build.rs
index 6ff46b2c16103..08530eef5c9d4 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -78,6 +78,7 @@ fn main() {
         cfg.header("netinet/in.h");
         cfg.header("netinet/ip.h");
         cfg.header("netinet/tcp.h");
+        cfg.header("netinet/udp.h");
         cfg.header("resolv.h");
         cfg.header("pthread.h");
         cfg.header("dlfcn.h");
@@ -150,6 +151,7 @@ fn main() {
         cfg.header("malloc/malloc.h");
         cfg.header("util.h");
         cfg.header("sys/xattr.h");
+        cfg.header("sys/sys_domain.h");
         if target.starts_with("x86") {
             cfg.header("crt_externs.h");
         }
@@ -200,6 +202,7 @@ fn main() {
         cfg.header("sys/personality.h");
         cfg.header("sys/swap.h");
         cfg.header("pty.h");
+        cfg.header("linux/netfilter_ipv4.h");
         if !uclibc {
             cfg.header("sys/sysinfo.h");
         }
diff --git a/src/unix/bsd/apple/mod.rs b/src/unix/bsd/apple/mod.rs
index 3abf3cc43a3ec..0da7cdf74877c 100644
--- a/src/unix/bsd/apple/mod.rs
+++ b/src/unix/bsd/apple/mod.rs
@@ -889,6 +889,10 @@ pub const AF_PPP: ::c_int = 34;
 pub const pseudo_AF_HDRCMPLT: ::c_int = 35;
 #[doc(hidden)]
 pub const AF_MAX: ::c_int = 40;
+pub const AF_SYS_CONTROL: ::c_int = 2;
+
+pub const SYSPROTO_EVENT: ::c_int = 1;
+pub const SYSPROTO_CONTROL: ::c_int = 2;
 
 pub const PF_UNSPEC: ::c_int = AF_UNSPEC;
 pub const PF_LOCAL: ::c_int = AF_LOCAL;
@@ -946,13 +950,6 @@ pub const SOCK_DGRAM: ::c_int = 2;
 pub const SOCK_RAW: ::c_int = 3;
 pub const SOCK_RDM: ::c_int = 4;
 pub const SOCK_SEQPACKET: ::c_int = 5;
-pub const IPPROTO_ICMP: ::c_int = 1;
-pub const IPPROTO_ICMPV6: ::c_int = 58;
-pub const IPPROTO_TCP: ::c_int = 6;
-pub const IPPROTO_IP: ::c_int = 0;
-pub const IPPROTO_IPV6: ::c_int = 41;
-pub const IP_MULTICAST_TTL: ::c_int = 10;
-pub const IP_MULTICAST_LOOP: ::c_int = 11;
 pub const IP_TTL: ::c_int = 4;
 pub const IP_HDRINCL: ::c_int = 2;
 pub const IP_ADD_MEMBERSHIP: ::c_int = 12;
@@ -975,6 +972,7 @@ pub const SO_LINGER: ::c_int = 0x0080;
 pub const SO_OOBINLINE: ::c_int = 0x0100;
 pub const SO_REUSEPORT: ::c_int = 0x0200;
 pub const SO_TIMESTAMP: ::c_int = 0x0400;
+pub const SO_TIMESTAMP_MONOTONIC: ::c_int = 0x0800;
 pub const SO_DONTTRUNC: ::c_int = 0x2000;
 pub const SO_WANTMORE: ::c_int = 0x4000;
 pub const SO_WANTOOBFLAG: ::c_int = 0x8000;
@@ -986,11 +984,17 @@ pub const SO_SNDTIMEO: ::c_int = 0x1005;
 pub const SO_RCVTIMEO: ::c_int = 0x1006;
 pub const SO_ERROR: ::c_int = 0x1007;
 pub const SO_TYPE: ::c_int = 0x1008;
+pub const SO_LABEL: ::c_int = 0x1010;
+pub const SO_PEERLABEL: ::c_int = 0x1011;
 pub const SO_NREAD: ::c_int = 0x1020;
 pub const SO_NKE: ::c_int = 0x1021;
 pub const SO_NOSIGPIPE: ::c_int = 0x1022;
 pub const SO_NOADDRERR: ::c_int = 0x1023;
 pub const SO_NWRITE: ::c_int = 0x1024;
+pub const SO_REUSESHAREUID: ::c_int = 0x1025;
+pub const SO_NOTIFYCONFLICT: ::c_int = 0x1026;
+pub const SO_RANDOMPORT: ::c_int = 0x1082;
+pub const SO_NP_EXTENSIONS: ::c_int = 0x1083;
 
 pub const MSG_OOB: ::c_int =  0x1;
 pub const MSG_PEEK: ::c_int = 0x2;
@@ -1008,7 +1012,6 @@ pub const MSG_HAVEMORE: ::c_int = 0x2000;
 pub const MSG_RCVMORE: ::c_int = 0x4000;
 // pub const MSG_COMPAT: ::c_int = 0x8000;
 
-pub const SCM_RIGHTS: ::c_int = 0x01;
 pub const SCM_TIMESTAMP: ::c_int = 0x02;
 pub const SCM_CREDS: ::c_int = 0x03;
 
diff --git a/src/unix/bsd/freebsdlike/mod.rs b/src/unix/bsd/freebsdlike/mod.rs
index 7540d7992d1f0..d8e9ba41a60a3 100644
--- a/src/unix/bsd/freebsdlike/mod.rs
+++ b/src/unix/bsd/freebsdlike/mod.rs
@@ -591,6 +591,8 @@ pub const MSG_WAITALL: ::c_int = 0x00000040;
 pub const MSG_DONTWAIT: ::c_int = 0x00000080;
 pub const MSG_EOF: ::c_int = 0x00000100;
 
+pub const SCM_TIMESTAMP: ::c_int = 0x02;
+
 pub const SOCK_STREAM: ::c_int = 1;
 pub const SOCK_DGRAM: ::c_int = 2;
 pub const SOCK_RAW: ::c_int = 3;
@@ -599,13 +601,6 @@ pub const SOCK_SEQPACKET: ::c_int = 5;
 pub const SOCK_CLOEXEC: ::c_int = 0x10000000;
 pub const SOCK_NONBLOCK: ::c_int = 0x20000000;
 pub const SOCK_MAXADDRLEN: ::c_int = 255;
-pub const IPPROTO_ICMP: ::c_int = 1;
-pub const IPPROTO_ICMPV6: ::c_int = 58;
-pub const IPPROTO_TCP: ::c_int = 6;
-pub const IPPROTO_IP: ::c_int = 0;
-pub const IPPROTO_IPV6: ::c_int = 41;
-pub const IP_MULTICAST_TTL: ::c_int = 10;
-pub const IP_MULTICAST_LOOP: ::c_int = 11;
 pub const IP_TTL: ::c_int = 4;
 pub const IP_HDRINCL: ::c_int = 2;
 pub const IP_ADD_MEMBERSHIP: ::c_int = 12;
diff --git a/src/unix/bsd/mod.rs b/src/unix/bsd/mod.rs
index ec65f9ea92831..f9d6689647773 100644
--- a/src/unix/bsd/mod.rs
+++ b/src/unix/bsd/mod.rs
@@ -180,11 +180,17 @@ pub const SIG_SETMASK: ::c_int = 3;
 pub const SIG_BLOCK: ::c_int = 0x1;
 pub const SIG_UNBLOCK: ::c_int = 0x2;
 
+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 IPV6_MULTICAST_LOOP: ::c_int = 11;
 pub const IPV6_V6ONLY: ::c_int = 27;
 
 pub const ST_RDONLY: ::c_ulong = 1;
 
+pub const SCM_RIGHTS: ::c_int = 0x01;
+
 pub const NCCS: usize = 20;
 
 pub const O_ACCMODE: ::c_int = 0x3;
@@ -303,6 +309,8 @@ pub const LOG_AUTHPRIV: ::c_int = 10 << 3;
 pub const LOG_FTP: ::c_int = 11 << 3;
 pub const LOG_PERROR: ::c_int = 0x20;
 
+pub const TCP_MAXSEG: ::c_int = 2;
+
 pub const PIPE_BUF: usize = 512;
 
 f! {
diff --git a/src/unix/bsd/netbsdlike/mod.rs b/src/unix/bsd/netbsdlike/mod.rs
index 55f58011ef89f..e199cf24e5855 100644
--- a/src/unix/bsd/netbsdlike/mod.rs
+++ b/src/unix/bsd/netbsdlike/mod.rs
@@ -409,13 +409,6 @@ pub const SOCK_DGRAM: ::c_int = 2;
 pub const SOCK_RAW: ::c_int = 3;
 pub const SOCK_RDM: ::c_int = 4;
 pub const SOCK_SEQPACKET: ::c_int = 5;
-pub const IPPROTO_ICMP: ::c_int = 1;
-pub const IPPROTO_ICMPV6: ::c_int = 58;
-pub const IPPROTO_TCP: ::c_int = 6;
-pub const IPPROTO_IP: ::c_int = 0;
-pub const IPPROTO_IPV6: ::c_int = 41;
-pub const IP_MULTICAST_TTL: ::c_int = 10;
-pub const IP_MULTICAST_LOOP: ::c_int = 11;
 pub const IP_TTL: ::c_int = 4;
 pub const IP_HDRINCL: ::c_int = 2;
 pub const IP_ADD_MEMBERSHIP: ::c_int = 12;
@@ -455,8 +448,6 @@ pub const MSG_MCAST: ::c_int = 0x200;
 pub const MSG_NOSIGNAL: ::c_int = 0x400;
 pub const MSG_CMSG_CLOEXEC: ::c_int = 0x800;
 
-pub const SCM_RIGHTS: ::c_int = 0x01;
-
 pub const IFF_LOOPBACK: ::c_int = 0x8;
 
 pub const SHUT_RD: ::c_int = 0;
diff --git a/src/unix/haiku/mod.rs b/src/unix/haiku/mod.rs
index b7dccc2e5165c..88ae261701dae 100644
--- a/src/unix/haiku/mod.rs
+++ b/src/unix/haiku/mod.rs
@@ -537,11 +537,6 @@ pub const AF_UNIX: ::c_int = 9;
 pub const AF_INET: ::c_int = 1;
 pub const AF_INET6: ::c_int = 6;
 pub const SOCK_RAW: ::c_int = 3;
-pub const IPPROTO_ICMP: ::c_int = 1;
-pub const IPPROTO_ICMPV6: ::c_int = 58;
-pub const IPPROTO_TCP: ::c_int = 6;
-pub const IPPROTO_IP: ::c_int = 0;
-pub const IPPROTO_IPV6: ::c_int = 41;
 pub const IP_MULTICAST_TTL: ::c_int = 10;
 pub const IP_MULTICAST_LOOP: ::c_int = 11;
 pub const IP_TTL: ::c_int = 4;
diff --git a/src/unix/mod.rs b/src/unix/mod.rs
index 2e6aae4bbdafa..3cba52512ec3b 100644
--- a/src/unix/mod.rs
+++ b/src/unix/mod.rs
@@ -217,6 +217,13 @@ pub const PRIO_USER: ::c_int = 2;
 pub const PRIO_MIN: ::c_int = -20;
 pub const PRIO_MAX: ::c_int = 20;
 
+pub const IPPROTO_ICMP: ::c_int = 1;
+pub const IPPROTO_ICMPV6: ::c_int = 58;
+pub const IPPROTO_TCP: ::c_int = 6;
+pub const IPPROTO_UDP: ::c_int = 17;
+pub const IPPROTO_IP: ::c_int = 0;
+pub const IPPROTO_IPV6: ::c_int = 41;
+
 cfg_if! {
     if #[cfg(dox)] {
         // on dox builds don't pull in anything
diff --git a/src/unix/notbsd/android/mod.rs b/src/unix/notbsd/android/mod.rs
index 4928d663cf690..be527f0c94541 100644
--- a/src/unix/notbsd/android/mod.rs
+++ b/src/unix/notbsd/android/mod.rs
@@ -464,7 +464,6 @@ pub const SOCK_DGRAM: ::c_int = 2;
 pub const SOCK_SEQPACKET: ::c_int = 5;
 
 pub const SOL_SOCKET: ::c_int = 1;
-pub const SOL_UDP: ::c_int = 17;
 pub const SOL_SCTP: ::c_int = 132;
 pub const SOL_IPX: ::c_int = 256;
 pub const SOL_AX25: ::c_int = 257;
@@ -500,6 +499,7 @@ pub const SO_BINDTODEVICE: ::c_int = 25;
 pub const SO_TIMESTAMP: ::c_int = 29;
 pub const SO_ACCEPTCONN: ::c_int = 30;
 pub const SO_SNDBUFFORCE: ::c_int = 32;
+pub const SO_RCVBUFFORCE: ::c_int = 33;
 pub const SO_MARK: ::c_int = 36;
 pub const SO_PROTOCOL: ::c_int = 38;
 pub const SO_DOMAIN: ::c_int = 39;
diff --git a/src/unix/notbsd/linux/mips/mod.rs b/src/unix/notbsd/linux/mips/mod.rs
index ee0514200a540..d0c9294be2c48 100644
--- a/src/unix/notbsd/linux/mips/mod.rs
+++ b/src/unix/notbsd/linux/mips/mod.rs
@@ -328,7 +328,6 @@ pub const SO_DETACH_FILTER: ::c_int = 27;
 pub const SO_GET_FILTER: ::c_int = SO_ATTACH_FILTER;
 pub const SO_PEERNAME: ::c_int = 28;
 pub const SO_TIMESTAMP: ::c_int = 29;
-pub const SCM_TIMESTAMP: ::c_int = SO_TIMESTAMP;
 pub const SO_PEERSEC: ::c_int = 30;
 pub const SO_SNDBUFFORCE: ::c_int = 31;
 pub const SO_RCVBUFFORCE: ::c_int = 33;
diff --git a/src/unix/notbsd/linux/other/b64/aarch64.rs b/src/unix/notbsd/linux/other/b64/aarch64.rs
index 692cae4122baf..a4f8ca80cc6f7 100644
--- a/src/unix/notbsd/linux/other/b64/aarch64.rs
+++ b/src/unix/notbsd/linux/other/b64/aarch64.rs
@@ -213,7 +213,6 @@ pub const SO_DETACH_FILTER: ::c_int = 27;
 pub const SO_GET_FILTER: ::c_int = SO_ATTACH_FILTER;
 pub const SO_PEERNAME: ::c_int = 28;
 pub const SO_TIMESTAMP: ::c_int = 29;
-pub const SCM_TIMESTAMP: ::c_int = SO_TIMESTAMP;
 pub const SO_ACCEPTCONN: ::c_int = 30;
 pub const SO_PEERSEC: ::c_int = 31;
 pub const SO_PASSSEC: ::c_int = 34;
diff --git a/src/unix/notbsd/linux/other/b64/powerpc64.rs b/src/unix/notbsd/linux/other/b64/powerpc64.rs
index aad7763638698..9d301a83051d0 100644
--- a/src/unix/notbsd/linux/other/b64/powerpc64.rs
+++ b/src/unix/notbsd/linux/other/b64/powerpc64.rs
@@ -211,7 +211,6 @@ pub const SO_DETACH_FILTER: ::c_int = 27;
 pub const SO_GET_FILTER: ::c_int = SO_ATTACH_FILTER;
 pub const SO_PEERNAME: ::c_int = 28;
 pub const SO_TIMESTAMP: ::c_int = 29;
-pub const SCM_TIMESTAMP: ::c_int = SO_TIMESTAMP;
 pub const SO_ACCEPTCONN: ::c_int = 30;
 pub const SO_PEERSEC: ::c_int = 31;
 pub const SO_PASSSEC: ::c_int = 34;
diff --git a/src/unix/notbsd/linux/other/b64/x86_64.rs b/src/unix/notbsd/linux/other/b64/x86_64.rs
index 51df5a0496b63..8da0bd3b9cecb 100644
--- a/src/unix/notbsd/linux/other/b64/x86_64.rs
+++ b/src/unix/notbsd/linux/other/b64/x86_64.rs
@@ -314,7 +314,6 @@ pub const SO_DETACH_FILTER: ::c_int = 27;
 pub const SO_GET_FILTER: ::c_int = SO_ATTACH_FILTER;
 pub const SO_PEERNAME: ::c_int = 28;
 pub const SO_TIMESTAMP: ::c_int = 29;
-pub const SCM_TIMESTAMP: ::c_int = SO_TIMESTAMP;
 pub const SO_ACCEPTCONN: ::c_int = 30;
 pub const SO_PEERSEC: ::c_int = 31;
 pub const SO_PASSSEC: ::c_int = 34;
diff --git a/src/unix/notbsd/mod.rs b/src/unix/notbsd/mod.rs
index 1a9b7cba6e4bb..d07401e52e996 100644
--- a/src/unix/notbsd/mod.rs
+++ b/src/unix/notbsd/mod.rs
@@ -437,6 +437,7 @@ pub const IFF_DYNAMIC: ::c_int = 0x8000;
 
 pub const SOL_IP: ::c_int = 0;
 pub const SOL_TCP: ::c_int = 6;
+pub const SOL_UDP: ::c_int = 17;
 pub const SOL_IPV6: ::c_int = 41;
 pub const SOL_ICMPV6: ::c_int = 58;
 pub const SOL_RAW: ::c_int = 255;
@@ -553,12 +554,11 @@ pub const MSG_WAITFORONE: ::c_int = 0x10000;
 pub const MSG_FASTOPEN: ::c_int = 0x20000000;
 pub const MSG_CMSG_CLOEXEC: ::c_int = 0x40000000;
 
+pub const SCM_TIMESTAMP: ::c_int = SO_TIMESTAMP;
+
 pub const SOCK_RAW: ::c_int = 3;
-pub const IPPROTO_ICMP: ::c_int = 1;
-pub const IPPROTO_ICMPV6: ::c_int = 58;
-pub const IPPROTO_TCP: ::c_int = 6;
-pub const IPPROTO_IP: ::c_int = 0;
-pub const IPPROTO_IPV6: ::c_int = 41;
+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_TTL: ::c_int = 2;
@@ -587,6 +587,7 @@ pub const IPV6_MULTICAST_LOOP: ::c_int = 19;
 pub const IPV6_V6ONLY: ::c_int = 26;
 
 pub const SO_DEBUG: ::c_int = 1;
+pub const SO_ORIGINAL_DST: ::c_int = 80;
 
 pub const SHUT_RD: ::c_int = 0;
 pub const SHUT_WR: ::c_int = 1;
diff --git a/src/unix/solaris/mod.rs b/src/unix/solaris/mod.rs
index 51d034e0f4d4a..dcadcf081698c 100644
--- a/src/unix/solaris/mod.rs
+++ b/src/unix/solaris/mod.rs
@@ -823,11 +823,6 @@ pub const SOCK_STREAM: ::c_int = 2;
 pub const SOCK_RAW: ::c_int = 4;
 pub const SOCK_RDM: ::c_int = 5;
 pub const SOCK_SEQPACKET: ::c_int = 6;
-pub const IPPROTO_ICMP: ::c_int = 1;
-pub const IPPROTO_ICMPV6: ::c_int = 58;
-pub const IPPROTO_TCP: ::c_int = 6;
-pub const IPPROTO_IP: ::c_int = 0;
-pub const IPPROTO_IPV6: ::c_int = 41;
 pub const IP_MULTICAST_TTL: ::c_int = 17;
 pub const IP_MULTICAST_LOOP: ::c_int = 18;
 pub const IP_TTL: ::c_int = 4;
diff --git a/src/unix/uclibc/mod.rs b/src/unix/uclibc/mod.rs
index 01960361b935e..baadb8b46ff86 100644
--- a/src/unix/uclibc/mod.rs
+++ b/src/unix/uclibc/mod.rs
@@ -725,11 +725,6 @@ pub const MSG_WAITFORONE: ::c_int = 0x10000;
 pub const MSG_CMSG_CLOEXEC: ::c_int = 0x40000000;
 
 pub const SOCK_RAW: ::c_int = 3;
-pub const IPPROTO_ICMP: ::c_int = 1;
-pub const IPPROTO_ICMPV6: ::c_int = 58;
-pub const IPPROTO_TCP: ::c_int = 6;
-pub const IPPROTO_IP: ::c_int = 0;
-pub const IPPROTO_IPV6: ::c_int = 41;
 pub const IP_MULTICAST_TTL: ::c_int = 33;
 pub const IP_MULTICAST_LOOP: ::c_int = 34;
 pub const IP_TTL: ::c_int = 2;
@@ -1779,4 +1774,3 @@ cfg_if! {
         pub use unsupported_target;
     }
 }
-