Mercurial > hg > nginx

comparison src/core/ngx_bpf.h @ 8675:d3747ba486e7 quic

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Core: added interface to linux bpf() system call. It contains wrappers for operations with BPF maps and for loading BPF programs.
author Vladimir Homutov <vl@nginx.com>
date Tue, 15 Dec 2020 15:23:07 +0300
parents
children
comparison
equal deleted inserted replaced
8674:2c7f927f7999 8675:d3747ba486e7
1
2 /*
3 * Copyright (C) Nginx, Inc.
4 */
5
6
7 #ifndef _NGX_BPF_H_INCLUDED_
8 #define _NGX_BPF_H_INCLUDED_
9
10
11 #include <ngx_config.h>
12 #include <ngx_core.h>
13
14 #include <linux/bpf.h>
15
16
17 typedef struct {
18 char *name;
19 int offset;
20 } ngx_bpf_reloc_t;
21
22 typedef struct {
23 char *license;
24 enum bpf_prog_type type;
25 struct bpf_insn *ins;
26 size_t nins;
27 ngx_bpf_reloc_t *relocs;
28 size_t nrelocs;
29 } ngx_bpf_program_t;
30
31
32 void ngx_bpf_program_link(ngx_bpf_program_t *program, const char *symbol,
33 int fd);
34 int ngx_bpf_load_program(ngx_log_t *log, ngx_bpf_program_t *program);
35
36 int ngx_bpf_map_create(ngx_log_t *log, enum bpf_map_type type, int key_size,
37 int value_size, int max_entries, uint32_t map_flags);
38 int ngx_bpf_map_update(int fd, const void *key, const void *value,
39 uint64_t flags);
40 int ngx_bpf_map_delete(int fd, const void *key);
41 int ngx_bpf_map_lookup(int fd, const void *key, void *value);
42
43 #endif /* _NGX_BPF_H_INCLUDED_ */