Mercurial > hg > nginx-quic
annotate src/core/ngx_slab.h @ 7983:39501ce97e29
gRPC: generate error when response size is wrong.
As long as the "Content-Length" header is given, we now make sure
it exactly matches the size of the response. If it doesn't,
the response is considered malformed and must not be forwarded
(https://tools.ietf.org/html/rfc7540#section-8.1.2.6). While it
is not really possible to "not forward" the response which is already
being forwarded, we generate an error instead, which is the closest
equivalent.
Previous behaviour was to pass everything to the client, but this
seems to be suboptimal and causes issues (ticket #1695). Also this
directly contradicts HTTP/2 specification requirements.
Note that the new behaviour for the gRPC proxy is more strict than that
applied in other variants of proxying. This is intentional, as HTTP/2
specification requires us to do so, while in other types of proxying
malformed responses from backends are well known and historically
tolerated.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 06 Jul 2020 18:36:25 +0300 |
parents | 69f9ee0342db |
children |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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8 #ifndef _NGX_SLAB_H_INCLUDED_ |
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9 #define _NGX_SLAB_H_INCLUDED_ |
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12 #include <ngx_config.h> |
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13 #include <ngx_core.h> |
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15 |
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16 typedef struct ngx_slab_page_s ngx_slab_page_t; |
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18 struct ngx_slab_page_s { |
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19 uintptr_t slab; |
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20 ngx_slab_page_t *next; |
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21 uintptr_t prev; |
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22 }; |
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23 |
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24 |
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25 typedef struct { |
6828 | 26 ngx_uint_t total; |
27 ngx_uint_t used; | |
28 | |
29 ngx_uint_t reqs; | |
30 ngx_uint_t fails; | |
31 } ngx_slab_stat_t; | |
32 | |
33 | |
34 typedef struct { | |
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35 ngx_shmtx_sh_t lock; |
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36 |
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37 size_t min_size; |
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38 size_t min_shift; |
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39 |
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40 ngx_slab_page_t *pages; |
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41 ngx_slab_page_t *last; |
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42 ngx_slab_page_t free; |
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43 |
6828 | 44 ngx_slab_stat_t *stats; |
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45 ngx_uint_t pfree; |
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47 u_char *start; |
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48 u_char *end; |
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49 |
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50 ngx_shmtx_t mutex; |
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51 |
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52 u_char *log_ctx; |
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53 u_char zero; |
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54 |
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55 unsigned log_nomem:1; |
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56 |
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57 void *data; |
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58 void *addr; |
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59 } ngx_slab_pool_t; |
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60 |
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61 |
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62 void ngx_slab_sizes_init(void); |
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63 void ngx_slab_init(ngx_slab_pool_t *pool); |
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64 void *ngx_slab_alloc(ngx_slab_pool_t *pool, size_t size); |
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65 void *ngx_slab_alloc_locked(ngx_slab_pool_t *pool, size_t size); |
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66 void *ngx_slab_calloc(ngx_slab_pool_t *pool, size_t size); |
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67 void *ngx_slab_calloc_locked(ngx_slab_pool_t *pool, size_t size); |
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68 void ngx_slab_free(ngx_slab_pool_t *pool, void *p); |
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69 void ngx_slab_free_locked(ngx_slab_pool_t *pool, void *p); |
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70 |
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71 |
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72 #endif /* _NGX_SLAB_H_INCLUDED_ */ |