Mercurial > hg > nginx
view src/core/ngx_slab.h @ 9027:f9d7930d0eed quic
HTTP/3: skip empty request body buffers (ticket #2374).
When client DATA frame header and its content come in different QUIC packets,
it may happen that only the header is processed by the first
ngx_http_v3_request_body_filter() call. In this case an empty request body
buffer is added to r->request_body->bufs, which is later reused in a
subsequent ngx_http_v3_request_body_filter() call without being removed from
the body chain. As a result, rb->request_body->bufs ends up with two copies of
the same buffer.
The fix is to avoid adding empty request body buffers to r->request_body->bufs.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Wed, 03 Aug 2022 16:59:51 +0400 |
parents | 69f9ee0342db |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_SLAB_H_INCLUDED_ #define _NGX_SLAB_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> typedef struct ngx_slab_page_s ngx_slab_page_t; struct ngx_slab_page_s { uintptr_t slab; ngx_slab_page_t *next; uintptr_t prev; }; typedef struct { ngx_uint_t total; ngx_uint_t used; ngx_uint_t reqs; ngx_uint_t fails; } ngx_slab_stat_t; typedef struct { ngx_shmtx_sh_t lock; size_t min_size; size_t min_shift; ngx_slab_page_t *pages; ngx_slab_page_t *last; ngx_slab_page_t free; ngx_slab_stat_t *stats; ngx_uint_t pfree; u_char *start; u_char *end; ngx_shmtx_t mutex; u_char *log_ctx; u_char zero; unsigned log_nomem:1; void *data; void *addr; } ngx_slab_pool_t; void ngx_slab_sizes_init(void); void ngx_slab_init(ngx_slab_pool_t *pool); void *ngx_slab_alloc(ngx_slab_pool_t *pool, size_t size); void *ngx_slab_alloc_locked(ngx_slab_pool_t *pool, size_t size); void *ngx_slab_calloc(ngx_slab_pool_t *pool, size_t size); void *ngx_slab_calloc_locked(ngx_slab_pool_t *pool, size_t size); void ngx_slab_free(ngx_slab_pool_t *pool, void *p); void ngx_slab_free_locked(ngx_slab_pool_t *pool, void *p); #endif /* _NGX_SLAB_H_INCLUDED_ */