bpfjit.h revision 1.1.4.2
1 1.1.4.2 tls /* $NetBSD: bpfjit.h,v 1.1.4.2 2012/11/20 03:02:46 tls Exp $ */ 2 1.1.4.2 tls 3 1.1.4.2 tls /*- 4 1.1.4.2 tls * Copyright (c) 2011-2012 Alexander Nasonov. 5 1.1.4.2 tls * All rights reserved. 6 1.1.4.2 tls * 7 1.1.4.2 tls * Redistribution and use in source and binary forms, with or without 8 1.1.4.2 tls * modification, are permitted provided that the following conditions 9 1.1.4.2 tls * are met: 10 1.1.4.2 tls * 11 1.1.4.2 tls * 1. Redistributions of source code must retain the above copyright 12 1.1.4.2 tls * notice, this list of conditions and the following disclaimer. 13 1.1.4.2 tls * 2. Redistributions in binary form must reproduce the above copyright 14 1.1.4.2 tls * notice, this list of conditions and the following disclaimer in 15 1.1.4.2 tls * the documentation and/or other materials provided with the 16 1.1.4.2 tls * distribution. 17 1.1.4.2 tls * 18 1.1.4.2 tls * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 1.1.4.2 tls * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 1.1.4.2 tls * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21 1.1.4.2 tls * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22 1.1.4.2 tls * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23 1.1.4.2 tls * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 1.1.4.2 tls * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 1.1.4.2 tls * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26 1.1.4.2 tls * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 1.1.4.2 tls * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 28 1.1.4.2 tls * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 1.1.4.2 tls * SUCH DAMAGE. 30 1.1.4.2 tls */ 31 1.1.4.2 tls 32 1.1.4.2 tls #ifndef _NET_BPFJIT_H_ 33 1.1.4.2 tls #define _NET_BPFJIT_H_ 34 1.1.4.2 tls 35 1.1.4.2 tls #ifndef _KERNEL 36 1.1.4.2 tls #include <stddef.h> 37 1.1.4.2 tls #include <stdint.h> 38 1.1.4.2 tls #endif 39 1.1.4.2 tls 40 1.1.4.2 tls #include <sys/types.h> 41 1.1.4.2 tls 42 1.1.4.2 tls #ifdef __linux 43 1.1.4.2 tls #include <pcap-bpf.h> 44 1.1.4.2 tls #else 45 1.1.4.2 tls #include <net/bpf.h> 46 1.1.4.2 tls #endif 47 1.1.4.2 tls 48 1.1.4.2 tls /* 49 1.1.4.2 tls * RETURN value and arguments of a function generated by sljit have sljit_uw 50 1.1.4.2 tls * type which can have a greater width than arguments below. In such cases, 51 1.1.4.2 tls * we rely on the fact that calling conventions use same registers for 52 1.1.4.2 tls * smaller types. 53 1.1.4.2 tls * SLJIT_MOV_UI is passed to sljit_emit_return() to make sure that the 54 1.1.4.2 tls * return value is truncated to unsigned int. 55 1.1.4.2 tls */ 56 1.1.4.2 tls typedef unsigned int (*bpfjit_function_t)(const uint8_t *, 57 1.1.4.2 tls unsigned int, unsigned int); 58 1.1.4.2 tls 59 1.1.4.2 tls bpfjit_function_t bpfjit_generate_code(struct bpf_insn *, size_t); 60 1.1.4.2 tls void bpfjit_free_code(bpfjit_function_t); 61 1.1.4.2 tls 62 1.1.4.2 tls #ifdef _KERNEL 63 1.1.4.2 tls struct bpfjit_ops 64 1.1.4.2 tls { 65 1.1.4.2 tls bpfjit_function_t (*bj_generate_code)(struct bpf_insn *, size_t); 66 1.1.4.2 tls void (*bj_free_code)(bpfjit_function_t); 67 1.1.4.2 tls }; 68 1.1.4.2 tls 69 1.1.4.2 tls extern struct bpfjit_ops bpfjit_module_ops; 70 1.1.4.2 tls #endif 71 1.1.4.2 tls 72 1.1.4.2 tls #endif /* !_NET_BPFJIT_H_ */ 73
Indexes created Fri Oct 03 02:09:57 GMT 2025