71 lines
1.4 KiB
Go
71 lines
1.4 KiB
Go
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package main
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import "time"
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const NET_TYPE_TCP string = "tcp"
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const FRAME_CODE_CLIENT_HELLO uint8 = 1
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const FRAME_CODE_SERVER_HELLO uint8 = 2
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const FRAME_CODE_SERVER_PEER_OPEN uint8 = 3
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const FRAME_CODE_SERVER_PEER_DATA uint8 = 4
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const FRAME_CODE_SERVER_PEER_CLOSE uint8 = 5
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const FRAME_CODE_SERVER_PEER_ERROR uint8 = 6
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const FRAME_CODE_CLIENT_PEER_OPENED uint8 = 7
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const FRAME_CODE_CLIENT_PEER_DATA uint8 = 8
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const FRAME_CODE_CLIENT_PEER_CLOSED uint8 = 9
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const FRAME_CODE_CLIENT_PEER_ERROR uint8 = 10
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const FRAME_OPTION_PORT uint8 = 1
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const FRAME_OPTION_REQNET4 uint8 = 2
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const FRAME_OPTION_REQNET6 uint8 = 3
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type FrameHeader struct {
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Len uint16 // length of whole packet including the header
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Code uint8
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ChanId uint8
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ConnId uint16
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}
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type FrameOptionHeader struct {
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Len uint8
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Code uint8
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}
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type FreameOptionRetnet4Data struct {
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addr [4]byte
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pfxlen uint8
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}
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type FreameOptionRetnet6Data struct {
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addr [16]byte
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pfxlen uint8
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}
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type FrameClientHelloData struct {
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AuthKey [64]byte // TODO: How to send this securely???
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ReqChan uint8
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/* this can be followed by variable options */
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}
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type FrameServerHelloData struct {
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AuthCode uint8
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}
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func read_chan_with_tmout(chan_bool chan bool, tmout time.Duration) (bool, bool) {
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var tmr *time.Timer
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var b bool
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var timed bool
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tmr = time.NewTimer(tmout)
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select {
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case <-tmr.C:
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timed = true
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b = false
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case b = <-chan_bool:
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tmr.Stop()
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timed = false
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}
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return timed, b
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}
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