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Fixes for obfuscated2

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This commit is contained in:
9seconds
2021-03-18 17:15:55 +03:00
parent 0ad2d61742
commit 0330a0e5cd
14 changed files with 335 additions and 19 deletions
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mtglib/internal/obfuscated2/handshake_frame.go
+15 -15
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@@ -5,17 +5,17 @@ import "encoding/binary"
const (
handshakeFrameLen = 64
handshakeFrameLenKey = 32
handshakeFrameLenIV = 16
handshakeFrameLenMagic = 4
handshakeFrameLenDC = 2
handshakeFrameLenKey = 32
handshakeFrameLenIV = 16
handshakeFrameLenConnectionType = 4
handshakeFrameLenDC = 2
handshakeFrameOffsetStart = 8
handshakeFrameOffsetKey = handshakeFrameOffsetStart
handshakeFrameOffsetIV = handshakeFrameOffsetKey + handshakeFrameLenKey
handshakeFrameOffsetMagic = handshakeFrameOffsetIV + handshakeFrameLenIV
handshakeFrameOffsetDC = handshakeFrameOffsetMagic + handshakeFrameLenMagic
handshakeFrameOffsetEnd = handshakeFrameOffsetDC + handshakeFrameLenDC
handshakeFrameOffsetStart = 8
handshakeFrameOffsetKey = handshakeFrameOffsetStart
handshakeFrameOffsetIV = handshakeFrameOffsetKey + handshakeFrameLenKey
handshakeFrameOffsetConnectionType = handshakeFrameOffsetIV + handshakeFrameLenIV
handshakeFrameOffsetDC = handshakeFrameOffsetConnectionType + handshakeFrameLenConnectionType
handshakeFrameOffsetEnd = handshakeFrameOffsetDC + handshakeFrameLenDC
)
// A structure of obfuscated2 handshake frame is following:
@@ -25,7 +25,7 @@ const (
// - 8 bytes of noise
// - 32 bytes of AES Key
// - 16 bytes of AES IV
// - 4 bytes of 'magic' - this has some settings like a connection type
// - 4 bytes of 'connection type' - this has some setting like a connection type
// - 2 bytes of 'DC'. DC is little endian int16
// - 2 bytes of noise
type handshakeFrame struct {
@@ -39,13 +39,13 @@ func (h *handshakeFrame) dc() int16 {
}
func (h *handshakeFrame) key() []byte {
return h.data[handshakeFrameLenKey:handshakeFrameOffsetIV]
return h.data[handshakeFrameOffsetKey:handshakeFrameOffsetIV]
}
func (h *handshakeFrame) iv() []byte {
return h.data[handshakeFrameOffsetIV:handshakeFrameOffsetMagic]
return h.data[handshakeFrameOffsetIV:handshakeFrameOffsetConnectionType]
}
func (h *handshakeFrame) magic() []byte {
return h.data[handshakeFrameOffsetMagic:handshakeFrameOffsetDC]
func (h *handshakeFrame) connectionType() []byte {
return h.data[handshakeFrameOffsetConnectionType:handshakeFrameOffsetDC]
}