Mercurial > hg > nginx
annotate src/core/ngx_md5.h @ 9189:fcec773dd249
QUIC: avoid partial expansion of PATH_CHALLENGE/PATH_RESPONSE.
By default packets with these frames are expanded to 1200 bytes. Previously,
if anti-amplification limit did not allow this expansion, it was limited to
whatever size was allowed. However RFC 9000 clearly states no partial
expansion should happen in both cases.
Section 8.2.1. Initiating Path Validation:
An endpoint MUST expand datagrams that contain a PATH_CHALLENGE frame
to at least the smallest allowed maximum datagram size of 1200 bytes,
unless the anti-amplification limit for the path does not permit
sending a datagram of this size.
Section 8.2.2. Path Validation Responses:
An endpoint MUST expand datagrams that contain a PATH_RESPONSE frame
to at least the smallest allowed maximum datagram size of 1200 bytes.
...
However, an endpoint MUST NOT expand the datagram containing the
PATH_RESPONSE if the resulting data exceeds the anti-amplification limit.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Wed, 29 Nov 2023 18:13:25 +0400 |
parents | 9eefb38f0005 |
children |
rev | line source |
---|---|
1572 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
1572 | 5 */ |
6 | |
7 | |
8 #ifndef _NGX_MD5_H_INCLUDED_ | |
9 #define _NGX_MD5_H_INCLUDED_ | |
10 | |
11 | |
12 #include <ngx_config.h> | |
13 #include <ngx_core.h> | |
14 | |
15 | |
3895
b659514a3948
an internal MD5 implemenation
Igor Sysoev <igor@sysoev.ru>
parents:
1598
diff
changeset
|
16 typedef struct { |
b659514a3948
an internal MD5 implemenation
Igor Sysoev <igor@sysoev.ru>
parents:
1598
diff
changeset
|
17 uint64_t bytes; |
b659514a3948
an internal MD5 implemenation
Igor Sysoev <igor@sysoev.ru>
parents:
1598
diff
changeset
|
18 uint32_t a, b, c, d; |
b659514a3948
an internal MD5 implemenation
Igor Sysoev <igor@sysoev.ru>
parents:
1598
diff
changeset
|
19 u_char buffer[64]; |
b659514a3948
an internal MD5 implemenation
Igor Sysoev <igor@sysoev.ru>
parents:
1598
diff
changeset
|
20 } ngx_md5_t; |
b659514a3948
an internal MD5 implemenation
Igor Sysoev <igor@sysoev.ru>
parents:
1598
diff
changeset
|
21 |
b659514a3948
an internal MD5 implemenation
Igor Sysoev <igor@sysoev.ru>
parents:
1598
diff
changeset
|
22 |
b659514a3948
an internal MD5 implemenation
Igor Sysoev <igor@sysoev.ru>
parents:
1598
diff
changeset
|
23 void ngx_md5_init(ngx_md5_t *ctx); |
3927
38e6f45c5e3d
make built-in ngx_md5_update() interface consistent with other implemenations
Igor Sysoev <igor@sysoev.ru>
parents:
3895
diff
changeset
|
24 void ngx_md5_update(ngx_md5_t *ctx, const void *data, size_t size); |
3895
b659514a3948
an internal MD5 implemenation
Igor Sysoev <igor@sysoev.ru>
parents:
1598
diff
changeset
|
25 void ngx_md5_final(u_char result[16], ngx_md5_t *ctx); |
b659514a3948
an internal MD5 implemenation
Igor Sysoev <igor@sysoev.ru>
parents:
1598
diff
changeset
|
26 |
b659514a3948
an internal MD5 implemenation
Igor Sysoev <igor@sysoev.ru>
parents:
1598
diff
changeset
|
27 |
1572 | 28 #endif /* _NGX_MD5_H_INCLUDED_ */ |