Add Netlink Protocol Families to SockProtocol enum

Currently the SockProtocol enum is rather scarce. This commit adds the Netlink protocols
defined in netlink(7) to the SockProtocol enum allowing us to use the Nix socket library for
more indepth Netlink work

src/sys/socket/mod.rs

@@ -92,6 +92,64 @@ pub enum SockProtocol {
     /// ([ref](https://developer.apple.com/library/content/documentation/Darwin/Conceptual/NKEConceptual/control/control.html))
     #[cfg(any(target_os = "ios", target_os = "macos"))]
     KextControl = libc::SYSPROTO_CONTROL,
+    /// Receives routing and link updates and may be used to modify the routing tables (both IPv4 and IPv6), IP addresses, link
+    // parameters, neighbor setups, queueing disciplines, traffic classes and packet classifiers
+    /// ([ref](https://www.man7.org/linux/man-pages/man7/netlink.7.html))
+    #[cfg(any(target_os = "android", target_os = "linux"))]
+    NetlinkRoute = libc::NETLINK_ROUTE,
+    /// Reserved for user-mode socket protocols
+    /// ([ref](https://www.man7.org/linux/man-pages/man7/netlink.7.html))
+    #[cfg(any(target_os = "android", target_os = "linux"))]
+    NetlinkUserSock = libc::NETLINK_USERSOCK,
+    /// Query information about sockets of various protocol families from the kernel
+    /// ([ref](https://www.man7.org/linux/man-pages/man7/netlink.7.html))
+    #[cfg(any(target_os = "android", target_os = "linux"))]
+    NetlinkSockDiag = libc::NETLINK_SOCK_DIAG,
+    /// SELinux event notifications.
+    /// ([ref](https://www.man7.org/linux/man-pages/man7/netlink.7.html))
+    #[cfg(any(target_os = "android", target_os = "linux"))]
+    NetlinkSELinux = libc::NETLINK_SELINUX,
+    /// Open-iSCSI
+    /// ([ref](https://www.man7.org/linux/man-pages/man7/netlink.7.html))
+    #[cfg(any(target_os = "android", target_os = "linux"))]
+    NetlinkISCSI = libc::NETLINK_ISCSI,
+    /// Auditing
+    /// ([ref](https://www.man7.org/linux/man-pages/man7/netlink.7.html))
+    #[cfg(any(target_os = "android", target_os = "linux"))]
+    NetlinkAudit = libc::NETLINK_AUDIT,
+    /// Access to FIB lookup from user space
+    /// ([ref](https://www.man7.org/linux/man-pages/man7/netlink.7.html))
+    #[cfg(any(target_os = "android", target_os = "linux"))]
+    NetlinkFIBLookup = libc::NETLINK_FIB_LOOKUP,
+    /// Netfilter subsystem
+    /// ([ref](https://www.man7.org/linux/man-pages/man7/netlink.7.html))
+    #[cfg(any(target_os = "android", target_os = "linux"))]
+    NetlinkNetFilter = libc::NETLINK_NETFILTER,
+    /// SCSI Transports
+    /// ([ref](https://www.man7.org/linux/man-pages/man7/netlink.7.html))
+    #[cfg(any(target_os = "android", target_os = "linux"))]
+    NetlinkSCSITransport = libc::NETLINK_SCSITRANSPORT,
+    /// Infiniband RDMA
+    /// ([ref](https://www.man7.org/linux/man-pages/man7/netlink.7.html))
+    #[cfg(any(target_os = "android", target_os = "linux"))]
+    NetlinkRDMA = libc::NETLINK_RDMA,
+    /// Transport IPv6 packets from netfilter to user space.  Used by ip6_queue kernel module.
+    /// ([ref](https://www.man7.org/linux/man-pages/man7/netlink.7.html))
+    #[cfg(any(target_os = "android", target_os = "linux"))]
+    NetlinkIPv6Firewall = libc::NETLINK_IP6_FW,
+    /// DECnet routing messages
+    /// ([ref](https://www.man7.org/linux/man-pages/man7/netlink.7.html))
+    #[cfg(any(target_os = "android", target_os = "linux"))]
+    NetlinkDECNetRoutingMessage = libc::NETLINK_DNRTMSG,
+    /// Kernel messages to user space
+    /// ([ref](https://www.man7.org/linux/man-pages/man7/netlink.7.html))
+    #[cfg(any(target_os = "android", target_os = "linux"))]
+    NetlinkKObjectUEvent = libc::NETLINK_KOBJECT_UEVENT,
+    /// Netlink interface to request information about ciphers registered with the kernel crypto API as well as allow
+    /// configuration of the kernel crypto API.
+    /// ([ref](https://www.man7.org/linux/man-pages/man7/netlink.7.html))
+    #[cfg(any(target_os = "android", target_os = "linux"))]
+    NetlinkCrypto = libc::NETLINK_CRYPTO,
 }
 
 libc_bitflags!{