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add ClientMode support based on Forward.4

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This commit is contained in:
wish
2023-07-22 16:47:44 +10:00
parent cc428d85d3
commit dbedab4d33
5 changed files with 18 additions and 7 deletions
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8
network/crypt_conn.go
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@@ -47,8 +47,10 @@ func (cc *CryptConn) ReadPacket() ([]byte, error) {
return nil, err
}
dataSize := uint32(cph.DataSize) + (uint32(cph.Pf0-0x03) * 0x1000)
// Now read the encrypted packet body after getting its size from the header.
encryptedPacketBody := make([]byte, cph.DataSize)
encryptedPacketBody := make([]byte, dataSize)
_, err = io.ReadFull(cc.conn, encryptedPacketBody)
if err != nil {
return nil, err
@@ -56,7 +58,7 @@ func (cc *CryptConn) ReadPacket() ([]byte, error) {
// Update the key rotation before decrypting.
if cph.KeyRotDelta != 0 {
cc.readKeyRot = (uint32(cph.KeyRotDelta) * (cc.readKeyRot + 1))
cc.readKeyRot = uint32(cph.KeyRotDelta) * (cc.readKeyRot + 1)
}
out, combinedCheck, check0, check1, check2 := crypto.Decrypt(encryptedPacketBody, cc.readKeyRot, nil)
@@ -94,7 +96,7 @@ func (cc *CryptConn) SendPacket(data []byte) error {
keyRotDelta := byte(3)
if keyRotDelta != 0 {
cc.sendKeyRot = (uint32(keyRotDelta) * (cc.sendKeyRot + 1))
cc.sendKeyRot = uint32(keyRotDelta) * (cc.sendKeyRot + 1)
}
// Encrypt the data