Mercurial > hg > nginx
annotate src/core/ngx_md5.h @ 6957:83bae3d354ab
HTTP/2: fixed connection finalization.
All streams in connection must be finalized before the connection
itself can be finalized and all related memory is freed. That's
not always possible on the current event loop iteration.
Thus when the last stream is finalized, it sets the special read
event handler ngx_http_v2_handle_connection_handler() and posts
the event.
Previously, this handler didn't check the connection state and
could call the regular event handler on a connection that was
already in finalization stage. In the worst case that could
lead to a segmentation fault, since some data structures aren't
supposed to be used during connection finalization. Particularly,
the waiting queue can contain already freed streams, so the
WINDOW_UPDATE frame received by that moment could trigger
accessing to these freed streams.
Now, the connection error flag is explicitly checked in
ngx_http_v2_handle_connection_handler().
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Wed, 29 Mar 2017 20:21:01 +0300 |
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_ */ |