Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_alloc.c @ 8551:c35b255d80dc quic
HTTP/3: close connection on keepalive_requests * 2.
After receiving GOAWAY, client is not supposed to create new streams. However,
until client reads this frame, we allow it to create new streams, which are
gracefully rejected. To prevent client from abusing this algorithm, a new
limit is introduced. Upon reaching keepalive_requests * 2, server now closes
the entire QUIC connection claiming excessive load.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Thu, 29 Jul 2021 16:01:37 +0300 |
parents | d620f497c50f |
children |
rev | line source |
---|---|
441
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
347
diff
changeset
|
1 |
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
347
diff
changeset
|
2 /* |
444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
441
diff
changeset
|
3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
347
diff
changeset
|
5 */ |
da8c5707af39
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents:
347
diff
changeset
|
6 |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
7 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
8 #include <ngx_config.h> |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
9 #include <ngx_core.h> |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
10 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
11 |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
589
diff
changeset
|
12 ngx_uint_t ngx_pagesize; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
589
diff
changeset
|
13 ngx_uint_t ngx_pagesize_shift; |
589 | 14 ngx_uint_t ngx_cacheline_size; |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
15 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
16 |
501 | 17 void * |
18 ngx_alloc(size_t size, ngx_log_t *log) | |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
19 { |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
20 void *p; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
21 |
501 | 22 p = malloc(size); |
23 if (p == NULL) { | |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
24 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, |
3321
93e8daca5dbb
update allocation error messages
Igor Sysoev <igor@sysoev.ru>
parents:
3320
diff
changeset
|
25 "malloc(%uz) failed", size); |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
26 } |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
27 |
461 | 28 ngx_log_debug2(NGX_LOG_DEBUG_ALLOC, log, 0, "malloc: %p:%uz", p, size); |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
29 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
30 return p; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
31 } |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
32 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
33 |
501 | 34 void * |
35 ngx_calloc(size_t size, ngx_log_t *log) | |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
36 { |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
37 void *p; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
38 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
39 p = ngx_alloc(size, log); |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
40 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
41 if (p) { |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
42 ngx_memzero(p, size); |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
43 } |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
44 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
45 return p; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
46 } |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
47 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
48 |
469 | 49 #if (NGX_HAVE_POSIX_MEMALIGN) |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
50 |
501 | 51 void * |
52 ngx_memalign(size_t alignment, size_t size, ngx_log_t *log) | |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
53 { |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
54 void *p; |
3320
d4ad1b0b6c8d
fix posix_memalign() error handling
Igor Sysoev <igor@sysoev.ru>
parents:
860
diff
changeset
|
55 int err; |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
56 |
3320
d4ad1b0b6c8d
fix posix_memalign() error handling
Igor Sysoev <igor@sysoev.ru>
parents:
860
diff
changeset
|
57 err = posix_memalign(&p, alignment, size); |
d4ad1b0b6c8d
fix posix_memalign() error handling
Igor Sysoev <igor@sysoev.ru>
parents:
860
diff
changeset
|
58 |
d4ad1b0b6c8d
fix posix_memalign() error handling
Igor Sysoev <igor@sysoev.ru>
parents:
860
diff
changeset
|
59 if (err) { |
d4ad1b0b6c8d
fix posix_memalign() error handling
Igor Sysoev <igor@sysoev.ru>
parents:
860
diff
changeset
|
60 ngx_log_error(NGX_LOG_EMERG, log, err, |
3321
93e8daca5dbb
update allocation error messages
Igor Sysoev <igor@sysoev.ru>
parents:
3320
diff
changeset
|
61 "posix_memalign(%uz, %uz) failed", alignment, size); |
3320
d4ad1b0b6c8d
fix posix_memalign() error handling
Igor Sysoev <igor@sysoev.ru>
parents:
860
diff
changeset
|
62 p = NULL; |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
63 } |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
64 |
3343
3051e512e301
fix building without --with-debug, introduced in r3328
Igor Sysoev <igor@sysoev.ru>
parents:
3327
diff
changeset
|
65 ngx_log_debug3(NGX_LOG_DEBUG_ALLOC, log, 0, |
3327 | 66 "posix_memalign: %p:%uz @%uz", p, size, alignment); |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
67 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
68 return p; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
69 } |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
70 |
469 | 71 #elif (NGX_HAVE_MEMALIGN) |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
72 |
501 | 73 void * |
74 ngx_memalign(size_t alignment, size_t size, ngx_log_t *log) | |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
75 { |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
76 void *p; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
77 |
501 | 78 p = memalign(alignment, size); |
79 if (p == NULL) { | |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
80 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, |
3321
93e8daca5dbb
update allocation error messages
Igor Sysoev <igor@sysoev.ru>
parents:
3320
diff
changeset
|
81 "memalign(%uz, %uz) failed", alignment, size); |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
82 } |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
83 |
3343
3051e512e301
fix building without --with-debug, introduced in r3328
Igor Sysoev <igor@sysoev.ru>
parents:
3327
diff
changeset
|
84 ngx_log_debug3(NGX_LOG_DEBUG_ALLOC, log, 0, |
3327 | 85 "memalign: %p:%uz @%uz", p, size, alignment); |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
86 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
87 return p; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
88 } |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
89 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
90 #endif |