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https://github.com/XTLS/Xray-core.git
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Fix xtls vision issue with big server hello
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parent
34b3f0204a
commit
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@ -406,7 +406,7 @@ func XtlsFilterTls(buffer buf.MultiBuffer, numberOfPacketToFilter *int, enableXt
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startsBytes := b.BytesTo(6)
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startsBytes := b.BytesTo(6)
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if bytes.Equal(tlsServerHandShakeStart, startsBytes[:3]) && startsBytes[5] == 0x02 {
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if bytes.Equal(tlsServerHandShakeStart, startsBytes[:3]) && startsBytes[5] == 0x02 {
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total := (int(startsBytes[3])<<8 | int(startsBytes[4])) + 5
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total := (int(startsBytes[3])<<8 | int(startsBytes[4])) + 5
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if b.Len() >= int32(total) && total >= 74 {
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if b.Len() >= 74 && total >= 74 {
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if bytes.Contains(b.BytesTo(int32(total)), tls13SupportedVersions) {
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if bytes.Contains(b.BytesTo(int32(total)), tls13SupportedVersions) {
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sessionIdLen := int32(b.Byte(43))
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sessionIdLen := int32(b.Byte(43))
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cipherSuite := b.BytesRange(43 + sessionIdLen + 1, 43 + sessionIdLen + 3)
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cipherSuite := b.BytesRange(43 + sessionIdLen + 1, 43 + sessionIdLen + 3)
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@ -417,22 +417,24 @@ func XtlsFilterTls(buffer buf.MultiBuffer, numberOfPacketToFilter *int, enableXt
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} else if (v != "TLS_AES_128_CCM_8_SHA256") {
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} else if (v != "TLS_AES_128_CCM_8_SHA256") {
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*enableXtls = true
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*enableXtls = true
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}
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}
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newError("XtlsFilterTls13 found tls 1.3! ", buffer.Len(), " ", v).WriteToLog(session.ExportIDToError(ctx))
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newError("XtlsFilterTls found tls 1.3! ", buffer.Len(), " ", v).WriteToLog(session.ExportIDToError(ctx))
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} else {
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} else {
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newError("XtlsFilterTls13 found tls 1.2! ", buffer.Len()).WriteToLog(session.ExportIDToError(ctx))
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newError("XtlsFilterTls found tls 1.2! ", buffer.Len()).WriteToLog(session.ExportIDToError(ctx))
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}
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}
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*isTLS12orAbove = true
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*isTLS12orAbove = true
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*isTLS = true
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*isTLS = true
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*numberOfPacketToFilter = 0
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*numberOfPacketToFilter = 0
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return
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return
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} else {
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newError("XtlsFilterTls short server hello, tls 1.2 or older? ", b.Len(), " ", total).WriteToLog(session.ExportIDToError(ctx))
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}
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}
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} else if bytes.Equal(tlsClientHandShakeStart, startsBytes[:2]) && startsBytes[5] == 0x01 {
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} else if bytes.Equal(tlsClientHandShakeStart, startsBytes[:2]) && startsBytes[5] == 0x01 {
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*isTLS = true
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*isTLS = true
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newError("XtlsFilterTls13 found tls client hello! ", buffer.Len()).WriteToLog(session.ExportIDToError(ctx))
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newError("XtlsFilterTls found tls client hello! ", buffer.Len()).WriteToLog(session.ExportIDToError(ctx))
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}
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}
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}
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}
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if *numberOfPacketToFilter <= 0 {
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if *numberOfPacketToFilter <= 0 {
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newError("XtlsFilterTls13 stop filtering", buffer.Len()).WriteToLog(session.ExportIDToError(ctx))
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newError("XtlsFilterTls stop filtering", buffer.Len()).WriteToLog(session.ExportIDToError(ctx))
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}
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}
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}
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}
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}
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}
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