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72 lines
3.8 KiB
Go
72 lines
3.8 KiB
Go
package sessdata
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type LType int8
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const (
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LTypeEthernet LType = 1
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LTypeIPData LType = 2
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)
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type Payload struct {
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LType LType // LinkType
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PType byte // payload types
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Data []byte
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}
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/*
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var header = []byte{'S', 'T', 'F', 0x01, 0, 0, 0x07, 0}
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https://tools.ietf.org/html/draft-mavrogiannopoulos-openconnect-02#section-2.2
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+---------------------+---------------------------------------------+
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| byte | value |
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+---------------------+---------------------------------------------+
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| 0 | fixed to 0x53 (S) |
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| | |
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| 1 | fixed to 0x54 (T) |
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| | |
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| 2 | fixed to 0x46 (F) |
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| | |
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| 3 | fixed to 0x01 |
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| 4-5 | The length of the packet that follows this |
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| | header in big endian order |
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| | |
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| 6 | The type of the payload that follows (see |
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| | Table 3 for available types) |
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| 7 | fixed to 0x00 |
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+---------------------+---------------------------------------------+
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The available payload types are listed in Table 3.
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+---------------------+---------------------------------------------+
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| Value | Description |
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+---------------------+---------------------------------------------+
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| 0x00 | DATA: the TLS record packet contains an |
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| | IPv4 or IPv6 packet |
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| | |
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| 0x03 | DPD-REQ: used for dead peer detection. Once |
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| | sent the peer should reply with a DPD-RESP |
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| | packet, that has the same contents as the |
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| | original request. |
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| | |
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| 0x04 | DPD-RESP: used as a response to a |
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| | previously received DPD-REQ. |
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| | |
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| 0x05 | DISCONNECT: sent by the client (or server) |
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| | to terminate the session. No data is |
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| | associated with this request. The session |
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| | will be invalidated after such request. |
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| | |
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| 0x07 | KEEPALIVE: sent by any peer. No data is |
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| | associated with this request. |
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| 0x08 | COMPRESSED DATA: a Data packet which is |
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| | compressed prior to encryption. |
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| 0x09 | TERMINATE: sent by the server to indicate |
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| | that the server is shutting down. No data |
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| | is associated with this request. |
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+---------------------+---------------------------------------------+
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*/
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