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nfqws: QUIC check fixed bit = 1

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bol-van 2022-03-26 21:09:15 +03:00
parent 2eec88c2bf
commit 1111845590
1 changed files with 2 additions and 2 deletions
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4
nfq/protocol.c
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@ -525,9 +525,9 @@ bool QUICExtractHostFromInitial(const uint8_t *data, size_t data_len, char *host
bool IsQUICInitial(const uint8_t *data, size_t len)
{
// too small packets are not likely to be initials with client hello
if (len < 256) return false;
// long header, fixed bit
if (len < 256 || (data[0] & 0xC0)!=0xC0) return false;
// this also ensures long header
uint32_t ver = QUICExtractVersion(data,len);
if (QUICDraftVersion(ver) < 11) return false;