Mercurial > hg > nginx-quic
annotate src/core/ngx_murmurhash.c @ 7877:d96ddef458cd quic
Added sending of extra CONNECTION_CLOSE frames.
According to quic-transport draft 28 section 10.3.1:
When sending CONNECTION_CLOSE, the goal is to ensure that the peer
will process the frame. Generally, this means sending the frame in a
packet with the highest level of packet protection to avoid the
packet being discarded. After the handshake is confirmed (see
Section 4.1.2 of [QUIC-TLS]), an endpoint MUST send any
CONNECTION_CLOSE frames in a 1-RTT packet. However, prior to
confirming the handshake, it is possible that more advanced packet
protection keys are not available to the peer, so another
CONNECTION_CLOSE frame MAY be sent in a packet that uses a lower
packet protection level.
author | Vladimir Homutov <vl@nginx.com> |
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date | Fri, 22 May 2020 18:14:35 +0300 |
parents | f38647c651a8 |
children |
rev | line source |
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3891 | 1 |
2 /* | |
3 * Copyright (C) Austin Appleby | |
4 */ | |
5 | |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
9 | |
10 | |
11 uint32_t | |
12 ngx_murmur_hash2(u_char *data, size_t len) | |
13 { | |
14 uint32_t h, k; | |
15 | |
16 h = 0 ^ len; | |
17 | |
18 while (len >= 4) { | |
19 k = data[0]; | |
20 k |= data[1] << 8; | |
21 k |= data[2] << 16; | |
22 k |= data[3] << 24; | |
23 | |
24 k *= 0x5bd1e995; | |
25 k ^= k >> 24; | |
26 k *= 0x5bd1e995; | |
27 | |
28 h *= 0x5bd1e995; | |
29 h ^= k; | |
30 | |
31 data += 4; | |
32 len -= 4; | |
33 } | |
34 | |
35 switch (len) { | |
36 case 3: | |
37 h ^= data[2] << 16; | |
6994
f38647c651a8
Added missing "fall through" comments (ticket #1259).
Maxim Dounin <mdounin@mdounin.ru>
parents:
3891
diff
changeset
|
38 /* fall through */ |
3891 | 39 case 2: |
40 h ^= data[1] << 8; | |
6994
f38647c651a8
Added missing "fall through" comments (ticket #1259).
Maxim Dounin <mdounin@mdounin.ru>
parents:
3891
diff
changeset
|
41 /* fall through */ |
3891 | 42 case 1: |
43 h ^= data[0]; | |
44 h *= 0x5bd1e995; | |
45 } | |
46 | |
47 h ^= h >> 13; | |
48 h *= 0x5bd1e995; | |
49 h ^= h >> 15; | |
50 | |
51 return h; | |
52 } |