Mercurial > hg > nginx-quic

annotate src/core/ngx_bpf.h @ 8551:c35b255d80dc quic

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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 d3747ba486e7
children
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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_BPF_H_INCLUDED_
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8 #define _NGX_BPF_H_INCLUDED_
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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14 #include <linux/bpf.h>
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17 typedef struct {
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18 char *name;
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19 int offset;
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20 } ngx_bpf_reloc_t;
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22 typedef struct {
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23 char *license;
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24 enum bpf_prog_type type;
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25 struct bpf_insn *ins;
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26 size_t nins;
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27 ngx_bpf_reloc_t *relocs;
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28 size_t nrelocs;
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29 } ngx_bpf_program_t;
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32 void ngx_bpf_program_link(ngx_bpf_program_t *program, const char *symbol,
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33 int fd);
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34 int ngx_bpf_load_program(ngx_log_t *log, ngx_bpf_program_t *program);
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36 int ngx_bpf_map_create(ngx_log_t *log, enum bpf_map_type type, int key_size,
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37 int value_size, int max_entries, uint32_t map_flags);
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38 int ngx_bpf_map_update(int fd, const void *key, const void *value,
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39 uint64_t flags);
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40 int ngx_bpf_map_delete(int fd, const void *key);
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41 int ngx_bpf_map_lookup(int fd, const void *key, void *value);
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43 #endif /* _NGX_BPF_H_INCLUDED_ */