Add network interface flag constants for all platforms

Add network interface flag constants for all platforms.

11 files changed, 194 insertions, 22 deletions

diff --git a/src/unix/bsd/apple/mod.rs b/src/unix/bsd/apple/mod.rs
index f76a2641f6..db4c23d759 100644
--- a/src/unix/bsd/apple/mod.rs
+++ b/src/unix/bsd/apple/mod.rs
@@ -1443,7 +1443,24 @@ pub const MSG_RCVMORE: ::c_int = 0x4000;
 pub const SCM_TIMESTAMP: ::c_int = 0x02;
 pub const SCM_CREDS: ::c_int = 0x03;
 
-pub const IFF_LOOPBACK: ::c_int = 0x8;
+/// https://github.com/aosm/xnu/blob/master/bsd/net/if.h#L140-L156
+pub const IFF_UP: ::c_int          = 0x1;       //  interface is up
+pub const IFF_BROADCAST: ::c_int   = 0x2;       //  broadcast address valid
+pub const IFF_DEBUG: ::c_int       = 0x4;       //  turn on debugging
+pub const IFF_LOOPBACK: ::c_int    = 0x8;       //  is a loopback net
+pub const IFF_POINTOPOINT: ::c_int = 0x10;      //  interface is point-to-point link
+pub const IFF_NOTRAILERS: ::c_int  = 0x20;      //  obsolete: avoid use of trailers
+pub const IFF_RUNNING: ::c_int     = 0x40;      //  resources allocated
+pub const IFF_NOARP: ::c_int       = 0x80;      //  no address resolution protocol
+pub const IFF_PROMISC: ::c_int     = 0x100;     //  receive all packets
+pub const IFF_ALLMULTI: ::c_int    = 0x200;     //  receive all multicast packets
+pub const IFF_OACTIVE: ::c_int     = 0x400;     //  transmission in progress
+pub const IFF_SIMPLEX: ::c_int     = 0x800;     //  can't hear own transmissions
+pub const IFF_LINK0: ::c_int       = 0x1000;    //  per link layer defined bit
+pub const IFF_LINK1: ::c_int       = 0x2000;    //  per link layer defined bit
+pub const IFF_LINK2: ::c_int       = 0x4000;    //  per link layer defined bit
+pub const IFF_ALTPHYS: ::c_int     = IFF_LINK2; //  use alternate physical connection
+pub const IFF_MULTICAST: ::c_int   = 0x8000;    //  supports multicast
 
 pub const SHUT_RD: ::c_int = 0;
 pub const SHUT_WR: ::c_int = 1;
diff --git a/src/unix/bsd/freebsdlike/dragonfly/mod.rs b/src/unix/bsd/freebsdlike/dragonfly/mod.rs
index ebfcd4b9d8..0979c8cca2 100644
--- a/src/unix/bsd/freebsdlike/dragonfly/mod.rs
+++ b/src/unix/bsd/freebsdlike/dragonfly/mod.rs
@@ -386,6 +386,31 @@ pub const NOTE_CHILD: ::uint32_t = 0x00000004;
 pub const SO_SNDSPACE: ::c_int = 0x100a;
 pub const SO_CPUHINT: ::c_int = 0x1030;
 
+// https://github.com/DragonFlyBSD/DragonFlyBSD/blob/master/sys/net/if.h#L101
+pub const IFF_UP: ::c_int = 0x1; // interface is up
+pub const IFF_BROADCAST: ::c_int = 0x2; // broadcast address valid
+pub const IFF_DEBUG: ::c_int = 0x4; // turn on debugging
+pub const IFF_LOOPBACK: ::c_int = 0x8; // is a loopback net
+pub const IFF_POINTOPOINT: ::c_int = 0x10; // interface is point-to-point link
+pub const IFF_SMART: ::c_int = 0x20; // interface manages own routes
+pub const IFF_RUNNING: ::c_int = 0x40; // resources allocated
+pub const IFF_NOARP: ::c_int = 0x80; // no address resolution protocol
+pub const IFF_PROMISC: ::c_int = 0x100; // receive all packets
+pub const IFF_ALLMULTI: ::c_int = 0x200; // receive all multicast packets
+pub const IFF_OACTIVE_COMPAT: ::c_int = 0x400; // was transmission in progress
+pub const IFF_SIMPLEX: ::c_int = 0x800; // can't hear own transmissions
+pub const IFF_LINK0: ::c_int = 0x1000; // per link layer defined bit
+pub const IFF_LINK1: ::c_int = 0x2000; // per link layer defined bit
+pub const IFF_LINK2: ::c_int = 0x4000; // per link layer defined bit
+pub const IFF_ALTPHYS: ::c_int = IFF_LINK2; // use alternate physical connection
+pub const IFF_MULTICAST: ::c_int = 0x8000; // supports multicast
+pub const IFF_POLLING_COMPAT: ::c_int = 0x10000; // was interface is in polling mode
+pub const IFF_PPROMISC: ::c_int = 0x20000; // user-requested promisc mode
+pub const IFF_MONITOR: ::c_int = 0x40000; // user-requested monitor mode
+pub const IFF_STATICARP: ::c_int = 0x80000; // static ARP
+pub const IFF_NPOLLING: ::c_int = 0x100000; // interface is in polling mode
+pub const IFF_IDIRECT: ::c_int = 0x200000; // direct input
+
 //
 // sys/netinet/in.h
 // Protocols (RFC 1700)
diff --git a/src/unix/bsd/freebsdlike/freebsd/mod.rs b/src/unix/bsd/freebsdlike/freebsd/mod.rs
index 03194a9300..2bbf972458 100644
--- a/src/unix/bsd/freebsdlike/freebsd/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/mod.rs
@@ -425,6 +425,31 @@ pub const AF_INET6_SDP: ::c_int = 42;
 #[doc(hidden)]
 pub const AF_MAX: ::c_int = 42;
 
+// https://github.com/freebsd/freebsd/blob/master/sys/net/if.h#L140
+pub const IFF_UP: ::c_int = 0x1; // (n) interface is up
+pub const IFF_BROADCAST: ::c_int = 0x2; // (i) broadcast address valid
+pub const IFF_DEBUG: ::c_int = 0x4; // (n) turn on debugging
+pub const IFF_LOOPBACK: ::c_int = 0x8; // (i) is a loopback net
+pub const IFF_POINTOPOINT: ::c_int = 0x10; // (i) is a point-to-point link
+// 0x20           was IFF_SMART
+pub const IFF_DRV_RUNNING: ::c_int = 0x40; // (d) resources allocated
+pub const IFF_NOARP: ::c_int = 0x80; // (n) no address resolution protocol
+pub const IFF_PROMISC: ::c_int = 0x100; // (n) receive all packets
+pub const IFF_ALLMULTI: ::c_int = 0x200; // (n) receive all multicast packets
+pub const IFF_DRV_OACTIVE: ::c_int = 0x400; // (d) tx hardware queue is full
+pub const IFF_SIMPLEX: ::c_int = 0x800; // (i) can't hear own transmissions
+pub const IFF_LINK0: ::c_int = 0x1000; // per link layer defined bit
+pub const IFF_LINK1: ::c_int = 0x2000; // per link layer defined bit
+pub const IFF_LINK2: ::c_int = 0x4000; // per link layer defined bit
+pub const IFF_ALTPHYS: ::c_int = IFF_LINK2; // use alternate physical connection
+pub const IFF_MULTICAST: ::c_int = 0x8000; // (i) supports multicast
+pub const IFF_CANTCONFIG: ::c_int = 0x10000; // (i) unconfigurable using ioctl(2)
+pub const IFF_PPROMISC: ::c_int = 0x20000; // (n) user-requested promisc mode
+pub const IFF_MONITOR: ::c_int = 0x40000; // (n) user-requested monitor mode
+pub const IFF_STATICARP: ::c_int = 0x80000; // (n) static ARP
+pub const IFF_DYING: ::c_int = 0x200000; // (n) interface is winding down
+pub const IFF_RENAMING: ::c_int = 0x400000; // (n) interface is being renamed
+
 // sys/netinet/in.h
 // Protocols (RFC 1700)
 // NOTE: These are in addition to the constants defined in src/unix/mod.rs
diff --git a/src/unix/bsd/freebsdlike/mod.rs b/src/unix/bsd/freebsdlike/mod.rs
index 8cc87ce9f5..2fb1520a87 100644
--- a/src/unix/bsd/freebsdlike/mod.rs
+++ b/src/unix/bsd/freebsdlike/mod.rs
@@ -640,8 +640,6 @@ pub const SO_RCVTIMEO: ::c_int = 0x1006;
 pub const SO_ERROR: ::c_int = 0x1007;
 pub const SO_TYPE: ::c_int = 0x1008;
 
-pub const IFF_LOOPBACK: ::c_int = 0x8;
-
 pub const SHUT_RD: ::c_int = 0;
 pub const SHUT_WR: ::c_int = 1;
 pub const SHUT_RDWR: ::c_int = 2;
diff --git a/src/unix/bsd/netbsdlike/mod.rs b/src/unix/bsd/netbsdlike/mod.rs
index f9caca9e7a..9179e6afa2 100644
--- a/src/unix/bsd/netbsdlike/mod.rs
+++ b/src/unix/bsd/netbsdlike/mod.rs
@@ -448,8 +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 IFF_LOOPBACK: ::c_int = 0x8;
-
 pub const SHUT_RD: ::c_int = 0;
 pub const SHUT_WR: ::c_int = 1;
 pub const SHUT_RDWR: ::c_int = 2;
diff --git a/src/unix/bsd/netbsdlike/netbsd/mod.rs b/src/unix/bsd/netbsdlike/netbsd/mod.rs
index cc9798c764..16f127e9cc 100644
--- a/src/unix/bsd/netbsdlike/netbsd/mod.rs
+++ b/src/unix/bsd/netbsdlike/netbsd/mod.rs
@@ -346,6 +346,24 @@ pub const SO_TIMESTAMP: ::c_int = 0x2000;
 pub const SO_OVERFLOWED: ::c_int = 0x1009;
 pub const SO_NOHEADER: ::c_int = 0x100a;
 
+// https://github.com/NetBSD/src/blob/trunk/sys/net/if.h#L373
+pub const IFF_UP: ::c_int = 0x0001; // interface is up
+pub const IFF_BROADCAST: ::c_int = 0x0002; // broadcast address valid
+pub const IFF_DEBUG: ::c_int = 0x0004; // turn on debugging
+pub const IFF_LOOPBACK: ::c_int = 0x0008; // is a loopback net
+pub const IFF_POINTOPOINT: ::c_int = 0x0010; // interface is point-to-point link
+pub const IFF_NOTRAILERS: ::c_int = 0x0020; // avoid use of trailers
+pub const IFF_RUNNING: ::c_int = 0x0040; // resources allocated
+pub const IFF_NOARP: ::c_int = 0x0080; // no address resolution protocol
+pub const IFF_PROMISC: ::c_int = 0x0100; // receive all packets
+pub const IFF_ALLMULTI: ::c_int = 0x0200; // receive all multicast packets
+pub const IFF_OACTIVE: ::c_int = 0x0400; // transmission in progress
+pub const IFF_SIMPLEX: ::c_int = 0x0800; // can't hear own transmissions
+pub const IFF_LINK0: ::c_int = 0x1000; // per link layer defined bit
+pub const IFF_LINK1: ::c_int = 0x2000; // per link layer defined bit
+pub const IFF_LINK2: ::c_int = 0x4000; // per link layer defined bit
+pub const IFF_MULTICAST: ::c_int = 0x8000; // supports multicast
+
 // sys/netinet/in.h
 // Protocols (RFC 1700)
 // NOTE: These are in addition to the constants defined in src/unix/mod.rs
diff --git a/src/unix/bsd/netbsdlike/openbsdlike/mod.rs b/src/unix/bsd/netbsdlike/openbsdlike/mod.rs
index 293fa2eea4..aeb302f188 100644
--- a/src/unix/bsd/netbsdlike/openbsdlike/mod.rs
+++ b/src/unix/bsd/netbsdlike/openbsdlike/mod.rs
@@ -221,6 +221,24 @@ pub const SO_RTABLE: ::c_int = 0x1021;
 pub const SO_PEERCRED: ::c_int = 0x1022;
 pub const SO_SPLICE: ::c_int = 0x1023;
 
+// https://github.com/openbsd/src/blob/master/sys/net/if.h#L187
+pub const IFF_UP: ::c_int = 0x1; // interface is up
+pub const IFF_BROADCAST: ::c_int = 0x2; // broadcast address valid
+pub const IFF_DEBUG: ::c_int = 0x4; // turn on debugging
+pub const IFF_LOOPBACK: ::c_int = 0x8; // is a loopback net
+pub const IFF_POINTOPOINT: ::c_int = 0x10; // interface is point-to-point link
+pub const IFF_NOTRAILERS: ::c_int = 0x20; // avoid use of trailers
+pub const IFF_RUNNING: ::c_int = 0x40; // resources allocated
+pub const IFF_NOARP: ::c_int = 0x80; // no address resolution protocol
+pub const IFF_PROMISC: ::c_int = 0x100; // receive all packets
+pub const IFF_ALLMULTI: ::c_int = 0x200; // receive all multicast packets
+pub const IFF_OACTIVE: ::c_int = 0x400; // transmission in progress
+pub const IFF_SIMPLEX: ::c_int = 0x800; // can't hear own transmissions
+pub const IFF_LINK0: ::c_int = 0x1000; // per link layer defined bit
+pub const IFF_LINK1: ::c_int = 0x2000; // per link layer defined bit
+pub const IFF_LINK2: ::c_int = 0x4000; // per link layer defined bit
+pub const IFF_MULTICAST: ::c_int = 0x8000; // supports multicast
+
 // sys/netinet/in.h
 // Protocols (RFC 1700)
 // NOTE: These are in addition to the constants defined in src/unix/mod.rs
diff --git a/src/unix/haiku/mod.rs b/src/unix/haiku/mod.rs
index 2b05e8ef87..ebb20720b3 100644
--- a/src/unix/haiku/mod.rs
+++ b/src/unix/haiku/mod.rs
@@ -606,7 +606,20 @@ pub const MADV_RANDOM: ::c_int = 3;
 pub const MADV_WILLNEED: ::c_int = 4;
 pub const MADV_DONTNEED: ::c_int = 5;
 
+// https://github.com/haiku/haiku/blob/master/headers/posix/net/if.h#L80
+pub const IFF_UP: ::c_int = 0x0001;
+pub const IFF_BROADCAST: ::c_int = 0x0002; // valid broadcast address
 pub const IFF_LOOPBACK: ::c_int = 0x0008;
+pub const IFF_POINTOPOINT: ::c_int = 0x0010; // point-to-point link
+pub const IFF_NOARP: ::c_int = 0x0040; // no address resolution
+pub const IFF_AUTOUP: ::c_int = 0x0080; // auto dial
+pub const IFF_PROMISC: ::c_int = 0x0100; // receive all packets
+pub const IFF_ALLMULTI: ::c_int = 0x0200; // receive all multicast packets
+pub const IFF_SIMPLEX: ::c_int = 0x0800; // doesn't receive own transmissions
+pub const IFF_LINK: ::c_int = 0x1000; // has link
+pub const IFF_AUTO_CONFIGURED: ::c_int = 0x2000;
+pub const IFF_CONFIGURING: ::c_int = 0x4000;
+pub const IFF_MULTICAST: ::c_int = 0x8000; // supports multicast
 
 pub const AF_UNSEC: ::c_int = 0;
 pub const AF_INET: ::c_int = 1;
diff --git a/src/unix/newlib/mod.rs b/src/unix/newlib/mod.rs
index d895541124..7cc7fec218 100644
--- a/src/unix/newlib/mod.rs
+++ b/src/unix/newlib/mod.rs
@@ -517,6 +517,26 @@ pub const SOCK_CLOEXEC: ::c_int = O_CLOEXEC;
 
 pub const INET_ADDRSTRLEN: ::c_int = 16;
 
+// https://github.
+// com/bminor/newlib/blob/master/newlib/libc/sys/linux/include/net/if.h#L121
+pub const IFF_UP: ::c_int = 0x1; // interface is up
+pub const IFF_BROADCAST: ::c_int = 0x2; // broadcast address valid
+pub const IFF_DEBUG: ::c_int = 0x4; // turn on debugging
+pub const IFF_LOOPBACK: ::c_int = 0x8; // is a loopback net
+pub const IFF_POINTOPOINT: ::c_int = 0x10; // interface is point-to-point link
+pub const IFF_NOTRAILERS: ::c_int = 0x20; // avoid use of trailers
+pub const IFF_RUNNING: ::c_int = 0x40; // resources allocated
+pub const IFF_NOARP: ::c_int = 0x80; // no address resolution protocol
+pub const IFF_PROMISC: ::c_int = 0x100; // receive all packets
+pub const IFF_ALLMULTI: ::c_int = 0x200; // receive all multicast packets
+pub const IFF_OACTIVE: ::c_int = 0x400; // transmission in progress
+pub const IFF_SIMPLEX: ::c_int = 0x800; // can't hear own transmissions
+pub const IFF_LINK0: ::c_int = 0x1000; // per link layer defined bit
+pub const IFF_LINK1: ::c_int = 0x2000; // per link layer defined bit
+pub const IFF_LINK2: ::c_int = 0x4000; // per link layer defined bit
+pub const IFF_ALTPHYS: ::c_int = IFF_LINK2; // use alternate physical connection
+pub const IFF_MULTICAST: ::c_int = 0x8000; // supports multicast
+
 pub const IPPROTO_IP: ::c_int = 0;
 pub const IPPROTO_UDP: ::c_int = 17;
 pub const IPPROTO_TCP: ::c_int = 6;
diff --git a/src/unix/solaris/mod.rs b/src/unix/solaris/mod.rs
index a6c2d4bf97..aece56ce42 100644
--- a/src/unix/solaris/mod.rs
+++ b/src/unix/solaris/mod.rs
@@ -867,7 +867,45 @@ pub const SO_TYPE: ::c_int = 0x1008;
 
 pub const MSG_PEEK: ::c_int = 0x2;
 
-pub const IFF_LOOPBACK: ::c_int = 0x8;
+// https://docs.oracle.com/cd/E23824_01/html/821-1475/if-7p.html
+pub const IFF_UP: ::c_int = 0x0000000001; // Address is up
+pub const IFF_BROADCAST: ::c_int = 0x0000000002; // Broadcast address valid
+pub const IFF_DEBUG: ::c_int = 0x0000000004; // Turn on debugging
+pub const IFF_LOOPBACK: ::c_int = 0x0000000008; // Loopback net
+pub const IFF_POINTOPOINT: ::c_int = 0x0000000010; // Interface is p-to-p
+pub const IFF_NOTRAILERS: ::c_int = 0x0000000020; // Avoid use of trailers
+pub const IFF_RUNNING: ::c_int = 0x0000000040; // Resources allocated
+pub const IFF_NOARP: ::c_int = 0x0000000080; // No address res. protocol
+pub const IFF_PROMISC: ::c_int = 0x0000000100; // Receive all packets
+pub const IFF_ALLMULTI: ::c_int = 0x0000000200; // Receive all multicast pkts
+pub const IFF_INTELLIGENT: ::c_int = 0x0000000400; // Protocol code on board
+pub const IFF_MULTICAST: ::c_int = 0x0000000800; // Supports multicast
+pub const IFF_MULTI_BCAST: ::c_int = 0x0000001000; // Multicast using broadcst. add.
+pub const IFF_UNNUMBERED: ::c_int = 0x0000002000; // Non-unique address
+pub const IFF_DHCPRUNNING: ::c_int = 0x0000004000; // DHCP controls interface
+pub const IFF_PRIVATE: ::c_int = 0x0000008000; // Do not advertise
+pub const IFF_NOXMIT: ::c_int = 0x0000010000; // Do not transmit pkts
+pub const IFF_NOLOCAL: ::c_int = 0x0000020000; // No address - just on-link subnet
+pub const IFF_DEPRECATED: ::c_int = 0x0000040000; // Address is deprecated
+pub const IFF_ADDRCONF: ::c_int = 0x0000080000; // Addr. from stateless addrconf
+pub const IFF_ROUTER: ::c_int = 0x0000100000; // Router on interface
+pub const IFF_NONUD: ::c_int = 0x0000200000; // No NUD on interface
+pub const IFF_ANYCAST: ::c_int = 0x0000400000; // Anycast address
+pub const IFF_NORTEXCH: ::c_int = 0x0000800000; // Don't xchange rout. info
+pub const IFF_IPV4: ::c_int = 0x0001000000; // IPv4 interface
+pub const IFF_IPV6: ::c_int = 0x0002000000; // IPv6 interface
+pub const IFF_NOFAILOVER: ::c_int = 0x0008000000; // in.mpathd test address
+pub const IFF_FAILED: ::c_int = 0x0010000000; // Interface has failed
+pub const IFF_STANDBY: ::c_int = 0x0020000000; // Interface is a hot-spare
+pub const IFF_INACTIVE: ::c_int = 0x0040000000; // Functioning but not used
+pub const IFF_OFFLINE: ::c_int = 0x0080000000; // Interface is offline
+pub const IFF_COS_ENABLED: ::c_int = 0x0200000000; // If CoS marking is supported
+pub const IFF_PREFERRED: ::c_int = 0x0400000000; // Prefer as source address
+pub const IFF_TEMPORARY: ::c_int = 0x0800000000; // RFC3041
+pub const IFF_FIXEDMTU: ::c_int = 0x1000000000; // MTU set with SIOCSLIFMTU
+pub const IFF_VIRTUAL: ::c_int = 0x2000000000; // Cannot send/receive pkts
+pub const IFF_DUPLICATE: ::c_int = 0x4000000000; // Local address in use
+pub const IFF_IPMP: ::c_int = 0x8000000000; // IPMP IP interface
 
 pub const SHUT_RD: ::c_int = 0;
 pub const SHUT_WR: ::c_int = 1;
diff --git a/src/unix/uclibc/mod.rs b/src/unix/uclibc/mod.rs
index 87521b2a81..b9d406046b 100644
--- a/src/unix/uclibc/mod.rs
+++ b/src/unix/uclibc/mod.rs
@@ -653,22 +653,24 @@ pub const MADV_MERGEABLE: ::c_int = 12;
 pub const MADV_UNMERGEABLE: ::c_int = 13;
 pub const MADV_HWPOISON: ::c_int = 100;
 
-pub const IFF_UP: ::c_int = 0x1;
-pub const IFF_BROADCAST: ::c_int = 0x2;
-pub const IFF_DEBUG: ::c_int = 0x4;
-pub const IFF_LOOPBACK: ::c_int = 0x8;
-pub const IFF_POINTOPOINT: ::c_int = 0x10;
-pub const IFF_NOTRAILERS: ::c_int = 0x20;
-pub const IFF_RUNNING: ::c_int = 0x40;
-pub const IFF_NOARP: ::c_int = 0x80;
-pub const IFF_PROMISC: ::c_int = 0x100;
-pub const IFF_ALLMULTI: ::c_int = 0x200;
-pub const IFF_MASTER: ::c_int = 0x400;
-pub const IFF_SLAVE: ::c_int = 0x800;
-pub const IFF_MULTICAST: ::c_int = 0x1000;
-pub const IFF_PORTSEL: ::c_int = 0x2000;
-pub const IFF_AUTOMEDIA: ::c_int = 0x4000;
-pub const IFF_DYNAMIC: ::c_int = 0x8000;
+// https://github.com/kraj/uClibc/blob/master/include/net/if.h#L44
+pub const IFF_UP: ::c_int = 0x1; // Interface is up.
+pub const IFF_BROADCAST: ::c_int = 0x2; // Broadcast address valid.
+pub const IFF_DEBUG: ::c_int = 0x4; // Turn on debugging.
+pub const IFF_LOOPBACK: ::c_int = 0x8; // Is a loopback net.
+pub const IFF_POINTOPOINT: ::c_int = 0x10; // Interface is point-to-point link.
+pub const IFF_NOTRAILERS: ::c_int = 0x20; // Avoid use of trailers.
+pub const IFF_RUNNING: ::c_int = 0x40; // Resources allocated.
+pub const IFF_NOARP: ::c_int = 0x80; // No address resolution protocol.
+pub const IFF_PROMISC: ::c_int = 0x100; // Receive all packets.
+// Not supported
+pub const IFF_ALLMULTI: ::c_int = 0x200; // Receive all multicast packets.
+pub const IFF_MASTER: ::c_int = 0x400; // Master of a load balancer.
+pub const IFF_SLAVE: ::c_int = 0x800; // Slave of a load balancer.
+pub const IFF_MULTICAST: ::c_int = 0x1000; // Supports multicast.
+pub const IFF_PORTSEL: ::c_int = 0x2000; // Can set media type.
+pub const IFF_AUTOMEDIA: ::c_int = 0x4000; // Auto media select active.
+pub const IFF_DYNAMIC: ::c_int = 0x8000; // Dialup device with changing addresses.
 
 pub const SOL_IP: ::c_int = 0;
 pub const SOL_TCP: ::c_int = 6;