Mercurial > hg > nginx-quic
annotate src/core/ngx_crc32.h @ 8496:278ab0ed24f2 quic
HTTP/3: generate more H3_FRAME_UNEXPECTED.
As per quic-http-34, these are the cases when this error should be generated:
If an endpoint receives a second SETTINGS frame
on the control stream, the endpoint MUST respond with a connection
error of type H3_FRAME_UNEXPECTED
SETTINGS frames MUST NOT be sent on any stream other than the control
stream. If an endpoint receives a SETTINGS frame on a different
stream, the endpoint MUST respond with a connection error of type
H3_FRAME_UNEXPECTED.
A client MUST NOT send a PUSH_PROMISE frame. A server MUST treat the
receipt of a PUSH_PROMISE frame as a connection error of type
H3_FRAME_UNEXPECTED; see Section 8.
The MAX_PUSH_ID frame is always sent on the control stream. Receipt
of a MAX_PUSH_ID frame on any other stream MUST be treated as a
connection error of type H3_FRAME_UNEXPECTED.
Receipt of an invalid sequence of frames MUST be treated as a
connection error of type H3_FRAME_UNEXPECTED; see Section 8. In
particular, a DATA frame before any HEADERS frame, or a HEADERS or
DATA frame after the trailing HEADERS frame, is considered invalid.
A CANCEL_PUSH frame is sent on the control stream. Receiving a
CANCEL_PUSH frame on a stream other than the control stream MUST be
treated as a connection error of type H3_FRAME_UNEXPECTED.
The GOAWAY frame is always sent on the control stream.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Fri, 11 Jun 2021 12:11:08 +0300 |
parents | d620f497c50f |
children |
rev | line source |
---|---|
790 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
790 | 5 */ |
6 | |
7 | |
8 #ifndef _NGX_CRC32_H_INCLUDED_ | |
9 #define _NGX_CRC32_H_INCLUDED_ | |
10 | |
11 | |
12 #include <ngx_config.h> | |
13 #include <ngx_core.h> | |
14 | |
15 | |
793
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
16 extern uint32_t *ngx_crc32_table_short; |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
17 extern uint32_t ngx_crc32_table256[]; |
790 | 18 |
19 | |
20 static ngx_inline uint32_t | |
793
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
21 ngx_crc32_short(u_char *p, size_t len) |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
22 { |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
23 u_char c; |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
24 uint32_t crc; |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
25 |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
26 crc = 0xffffffff; |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
27 |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
28 while (len--) { |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
29 c = *p++; |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
30 crc = ngx_crc32_table_short[(crc ^ (c & 0xf)) & 0xf] ^ (crc >> 4); |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
31 crc = ngx_crc32_table_short[(crc ^ (c >> 4)) & 0xf] ^ (crc >> 4); |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
32 } |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
33 |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
34 return crc ^ 0xffffffff; |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
35 } |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
36 |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
37 |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
38 static ngx_inline uint32_t |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
39 ngx_crc32_long(u_char *p, size_t len) |
790 | 40 { |
41 uint32_t crc; | |
42 | |
43 crc = 0xffffffff; | |
44 | |
45 while (len--) { | |
793
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
46 crc = ngx_crc32_table256[(crc ^ *p++) & 0xff] ^ (crc >> 8); |
790 | 47 } |
48 | |
49 return crc ^ 0xffffffff; | |
50 } | |
51 | |
52 | |
1694
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
53 #define ngx_crc32_init(crc) \ |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
54 crc = 0xffffffff |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
55 |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
56 |
1697 | 57 static ngx_inline void |
1694
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
58 ngx_crc32_update(uint32_t *crc, u_char *p, size_t len) |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
59 { |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
60 uint32_t c; |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
61 |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
62 c = *crc; |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
63 |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
64 while (len--) { |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
65 c = ngx_crc32_table256[(c ^ *p++) & 0xff] ^ (c >> 8); |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
66 } |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
67 |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
68 *crc = c; |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
69 } |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
70 |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
71 |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
72 #define ngx_crc32_final(crc) \ |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
73 crc ^= 0xffffffff |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
74 |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
75 |
8c696afe46b3
rename ngx_crc32_init() to ngx_crc32_table_init()
Igor Sysoev <igor@sysoev.ru>
parents:
930
diff
changeset
|
76 ngx_int_t ngx_crc32_table_init(void); |
793
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
77 |
8d39da951bbd
split ngx_crc32() to short and long version
Igor Sysoev <igor@sysoev.ru>
parents:
790
diff
changeset
|
78 |
790 | 79 #endif /* _NGX_CRC32_H_INCLUDED_ */ |