Documentation
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Index ¶
- func BuildNetlinkSockDiagRequest(addressFamily *uint8, make_size int, nlmsg_len uint32, nlmsg_seq uint32, ...) (packetBytes []byte)
- func OpenNetlinkSocketWithTimeout(timeout int64) (socketFileDescriptor int, socketAddress *unix.SockaddrNetlink)
- func SendNetlinkDumpRequest(socketFileDescriptor int, socketAddress *unix.SockaddrNetlink, ...)
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func BuildNetlinkSockDiagRequest ¶
func BuildNetlinkSockDiagRequest(addressFamily *uint8, make_size int, nlmsg_len uint32, nlmsg_seq uint32, nlmsg_pid uint32, idiag_ext uint8, idiag_stats uint8) (packetBytes []byte)
BuildNetlinkSockDiagRequest function builds up the binary bytes for the Netlink request We're using unsafe pointers for the uint8, because there is no PutUint8 addressFamily should be 2=IPv4, and 10=IPv6 per the kernel TODO - switch to binary package, because we're using unsafe. This is the only unsafe code in this program. Lots of comments here to show what we're doing, and includes links to the kernel source
func OpenNetlinkSocketWithTimeout ¶
func OpenNetlinkSocketWithTimeout(timeout int64) (socketFileDescriptor int, socketAddress *unix.SockaddrNetlink)
OpenNetlinkSocketWithTimeout function opens a Netlink socket in the C style way Using the newer https://godoc.org/golang.org/x/sys/unix library Commented out is some timeout code, which was used during testing, but leaving it here in case we want it back at some point
func SendNetlinkDumpRequest ¶
func SendNetlinkDumpRequest(socketFileDescriptor int, socketAddress *unix.SockaddrNetlink, packetBytes []byte)
SendNetlinkDumpRequest function sends the netlink request Please note the mutex is for being able to update the netlink revc function with the time we sent the request This is described in more detail in the xtcp.go TODO - look to refactor the arguments here using a type/struct which would probably be easier to read
Types ¶
This section is empty.
Source Files