bpfjit.h revision 1.1.2.3
1 1.1.2.3 yamt /* $NetBSD: bpfjit.h,v 1.1.2.3 2014/05/22 11:41:08 yamt Exp $ */ 2 1.1.2.2 yamt 3 1.1.2.2 yamt /*- 4 1.1.2.2 yamt * Copyright (c) 2011-2012 Alexander Nasonov. 5 1.1.2.2 yamt * All rights reserved. 6 1.1.2.2 yamt * 7 1.1.2.2 yamt * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 yamt * modification, are permitted provided that the following conditions 9 1.1.2.2 yamt * are met: 10 1.1.2.2 yamt * 11 1.1.2.2 yamt * 1. Redistributions of source code must retain the above copyright 12 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer. 13 1.1.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 14 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer in 15 1.1.2.2 yamt * the documentation and/or other materials provided with the 16 1.1.2.2 yamt * distribution. 17 1.1.2.2 yamt * 18 1.1.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 1.1.2.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 1.1.2.2 yamt * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21 1.1.2.2 yamt * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22 1.1.2.2 yamt * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23 1.1.2.2 yamt * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 1.1.2.2 yamt * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 1.1.2.2 yamt * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26 1.1.2.2 yamt * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 1.1.2.2 yamt * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 28 1.1.2.2 yamt * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 1.1.2.2 yamt * SUCH DAMAGE. 30 1.1.2.2 yamt */ 31 1.1.2.2 yamt 32 1.1.2.2 yamt #ifndef _NET_BPFJIT_H_ 33 1.1.2.2 yamt #define _NET_BPFJIT_H_ 34 1.1.2.2 yamt 35 1.1.2.2 yamt #ifndef _KERNEL 36 1.1.2.2 yamt #include <stddef.h> 37 1.1.2.2 yamt #include <stdint.h> 38 1.1.2.2 yamt #endif 39 1.1.2.2 yamt 40 1.1.2.2 yamt #include <sys/types.h> 41 1.1.2.2 yamt 42 1.1.2.2 yamt #ifdef __linux 43 1.1.2.2 yamt #include <pcap-bpf.h> 44 1.1.2.2 yamt #else 45 1.1.2.2 yamt #include <net/bpf.h> 46 1.1.2.2 yamt #endif 47 1.1.2.2 yamt 48 1.1.2.2 yamt /* 49 1.1.2.2 yamt * RETURN value and arguments of a function generated by sljit have sljit_uw 50 1.1.2.2 yamt * type which can have a greater width than arguments below. In such cases, 51 1.1.2.2 yamt * we rely on the fact that calling conventions use same registers for 52 1.1.2.2 yamt * smaller types. 53 1.1.2.2 yamt * SLJIT_MOV_UI is passed to sljit_emit_return() to make sure that the 54 1.1.2.2 yamt * return value is truncated to unsigned int. 55 1.1.2.2 yamt */ 56 1.1.2.3 yamt typedef unsigned int (*bpfjit_func_t)(const uint8_t *, 57 1.1.2.2 yamt unsigned int, unsigned int); 58 1.1.2.2 yamt 59 1.1.2.3 yamt bpfjit_func_t bpfjit_generate_code(bpf_ctx_t *, struct bpf_insn *, size_t); 60 1.1.2.3 yamt void bpfjit_free_code(bpfjit_func_t); 61 1.1.2.2 yamt 62 1.1.2.2 yamt #ifdef _KERNEL 63 1.1.2.3 yamt struct bpfjit_ops { 64 1.1.2.3 yamt bpfjit_func_t (*bj_generate_code)(bpf_ctx_t *, struct bpf_insn *, size_t); 65 1.1.2.3 yamt void (*bj_free_code)(bpfjit_func_t); 66 1.1.2.2 yamt }; 67 1.1.2.2 yamt 68 1.1.2.2 yamt extern struct bpfjit_ops bpfjit_module_ops; 69 1.1.2.2 yamt #endif 70 1.1.2.2 yamt 71 1.1.2.2 yamt #endif /* !_NET_BPFJIT_H_ */ 72
Indexes created Fri Oct 03 02:09:57 GMT 2025