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annotate src/event/quic/ngx_event_quic_frames.h @ 9062:987bee4363d1 quic

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HTTP/3: handled insertion reference to a going to be evicted entry. As per RFC 9204, section 3.2.2, a new entry can reference an entry in the dynamic table that will be evicted when adding this new entry into the dynamic table. Previously, such inserts resulted in use-after-free since the old entry was evicted before the insertion (ticket #2431). Now it's evicted after the insertion. This change fixes Insert with Name Reference and Duplicate encoder instructions.
author Roman Arutyunyan <arut@nginx.com>
date Tue, 03 Jan 2023 16:24:45 +0400
parents b5656025ddb5
children 3c98fa8fef6f
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1
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2 /*
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3 * Copyright (C) Nginx, Inc.
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4 */
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7 #ifndef _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_
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8 #define _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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15 typedef ngx_int_t (*ngx_quic_frame_handler_pt)(ngx_connection_t *c,
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16 ngx_quic_frame_t *frame, void *data);
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19 ngx_quic_frame_t *ngx_quic_alloc_frame(ngx_connection_t *c);
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20 void ngx_quic_free_frame(ngx_connection_t *c, ngx_quic_frame_t *frame);
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21 void ngx_quic_free_frames(ngx_connection_t *c, ngx_queue_t *frames);
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22 void ngx_quic_queue_frame(ngx_quic_connection_t *qc, ngx_quic_frame_t *frame);
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23 ngx_int_t ngx_quic_split_frame(ngx_connection_t *c, ngx_quic_frame_t *f,
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24 size_t len);
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25
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26 ngx_chain_t *ngx_quic_alloc_chain(ngx_connection_t *c);
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27 void ngx_quic_free_chain(ngx_connection_t *c, ngx_chain_t *in);
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29 ngx_chain_t *ngx_quic_read_buffer(ngx_connection_t *c, ngx_quic_buffer_t *qb,
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30 uint64_t limit);
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31 ngx_chain_t *ngx_quic_write_buffer(ngx_connection_t *c, ngx_quic_buffer_t *qb,
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32 ngx_chain_t *in, uint64_t limit, uint64_t offset);
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33 void ngx_quic_skip_buffer(ngx_connection_t *c, ngx_quic_buffer_t *qb,
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34 uint64_t offset);
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35 void ngx_quic_free_buffer(ngx_connection_t *c, ngx_quic_buffer_t *qb);
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37 #if (NGX_DEBUG)
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38 void ngx_quic_log_frame(ngx_log_t *log, ngx_quic_frame_t *f, ngx_uint_t tx);
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39 #else
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40 #define ngx_quic_log_frame(log, f, tx)
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41 #endif
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43 #endif /* _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_ */