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Diffstat (limited to 'src/pcap/bpf.h')
| -rw-r--r-- | src/pcap/bpf.h | 270 |
1 files changed, 0 insertions, 270 deletions
diff --git a/src/pcap/bpf.h b/src/pcap/bpf.h deleted file mode 100644 index 1a953a9..0000000 --- a/src/pcap/bpf.h +++ /dev/null @@ -1,270 +0,0 @@ -/*- - * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from the Stanford/CMU enet packet filter, - * (net/enet.c) distributed as part of 4.3BSD, and code contributed - * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence - * Berkeley Laboratory. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)bpf.h 7.1 (Berkeley) 5/7/91 - */ - -/* - * This is libpcap's cut-down version of bpf.h; it includes only - * the stuff needed for the code generator and the userland BPF - * interpreter, and the libpcap APIs for setting filters, etc.. - * - * "pcap-bpf.c" will include the native OS version, as it deals with - * the OS's BPF implementation. - * - * At least two programs found by Google Code Search explicitly includes - * <pcap/bpf.h> (even though <pcap.h>/<pcap/pcap.h> includes it for you), - * so moving that stuff to <pcap/pcap.h> would break the build for some - * programs. - */ - -/* - * If we've already included <net/bpf.h>, don't re-define this stuff. - * We assume BSD-style multiple-include protection in <net/bpf.h>, - * which is true of all but the oldest versions of FreeBSD and NetBSD, - * or Tru64 UNIX-style multiple-include protection (or, at least, - * Tru64 UNIX 5.x-style; I don't have earlier versions available to check), - * or AIX-style multiple-include protection (or, at least, AIX 5.x-style; - * I don't have earlier versions available to check), or QNX-style - * multiple-include protection (as per GitHub pull request #394). - * - * We do not check for BPF_MAJOR_VERSION, as that's defined by - * <linux/filter.h>, which is directly or indirectly included in some - * programs that also include pcap.h, and <linux/filter.h> doesn't - * define stuff we need. - * - * This also provides our own multiple-include protection. - */ -#if !defined(_NET_BPF_H_) && !defined(_NET_BPF_H_INCLUDED) && !defined(_BPF_H_) && !defined(_H_BPF) && !defined(lib_pcap_bpf_h) -#define lib_pcap_bpf_h - -#include <pcap/funcattrs.h> - -#ifdef __cplusplus -extern "C" { -#endif - -/* BSD style release date */ -#define BPF_RELEASE 199606 - -#ifdef MSDOS /* must be 32-bit */ -typedef long bpf_int32; -typedef unsigned long bpf_u_int32; -#else -typedef int bpf_int32; -typedef u_int bpf_u_int32; -#endif - -/* - * Alignment macros. BPF_WORDALIGN rounds up to the next - * even multiple of BPF_ALIGNMENT. - * - * Tcpdump's print-pflog.c uses this, so we define it here. - */ -#ifndef __NetBSD__ -#define BPF_ALIGNMENT sizeof(bpf_int32) -#else -#define BPF_ALIGNMENT sizeof(long) -#endif -#define BPF_WORDALIGN(x) (((x)+(BPF_ALIGNMENT-1))&~(BPF_ALIGNMENT-1)) - -/* - * Structure for "pcap_compile()", "pcap_setfilter()", etc.. - */ -struct bpf_program { - u_int bf_len; - struct bpf_insn *bf_insns; -}; - -#include <pcap/dlt.h> - -/* - * The instruction encodings. - * - * Please inform tcpdump-workers@lists.tcpdump.org if you use any - * of the reserved values, so that we can note that they're used - * (and perhaps implement it in the reference BPF implementation - * and encourage its implementation elsewhere). - */ - -/* - * The upper 8 bits of the opcode aren't used. BSD/OS used 0x8000. - */ - -/* instruction classes */ -#define BPF_CLASS(code) ((code) & 0x07) -#define BPF_LD 0x00 -#define BPF_LDX 0x01 -#define BPF_ST 0x02 -#define BPF_STX 0x03 -#define BPF_ALU 0x04 -#define BPF_JMP 0x05 -#define BPF_RET 0x06 -#define BPF_MISC 0x07 - -/* ld/ldx fields */ -#define BPF_SIZE(code) ((code) & 0x18) -#define BPF_W 0x00 -#define BPF_H 0x08 -#define BPF_B 0x10 -/* 0x18 reserved; used by BSD/OS */ -#define BPF_MODE(code) ((code) & 0xe0) -#define BPF_IMM 0x00 -#define BPF_ABS 0x20 -#define BPF_IND 0x40 -#define BPF_MEM 0x60 -#define BPF_LEN 0x80 -#define BPF_MSH 0xa0 -/* 0xc0 reserved; used by BSD/OS */ -/* 0xe0 reserved; used by BSD/OS */ - -/* alu/jmp fields */ -#define BPF_OP(code) ((code) & 0xf0) -#define BPF_ADD 0x00 -#define BPF_SUB 0x10 -#define BPF_MUL 0x20 -#define BPF_DIV 0x30 -#define BPF_OR 0x40 -#define BPF_AND 0x50 -#define BPF_LSH 0x60 -#define BPF_RSH 0x70 -#define BPF_NEG 0x80 -#define BPF_MOD 0x90 -#define BPF_XOR 0xa0 -/* 0xb0 reserved */ -/* 0xc0 reserved */ -/* 0xd0 reserved */ -/* 0xe0 reserved */ -/* 0xf0 reserved */ - -#define BPF_JA 0x00 -#define BPF_JEQ 0x10 -#define BPF_JGT 0x20 -#define BPF_JGE 0x30 -#define BPF_JSET 0x40 -/* 0x50 reserved; used on BSD/OS */ -/* 0x60 reserved */ -/* 0x70 reserved */ -/* 0x80 reserved */ -/* 0x90 reserved */ -/* 0xa0 reserved */ -/* 0xb0 reserved */ -/* 0xc0 reserved */ -/* 0xd0 reserved */ -/* 0xe0 reserved */ -/* 0xf0 reserved */ -#define BPF_SRC(code) ((code) & 0x08) -#define BPF_K 0x00 -#define BPF_X 0x08 - -/* ret - BPF_K and BPF_X also apply */ -#define BPF_RVAL(code) ((code) & 0x18) -#define BPF_A 0x10 -/* 0x18 reserved */ - -/* misc */ -#define BPF_MISCOP(code) ((code) & 0xf8) -#define BPF_TAX 0x00 -/* 0x08 reserved */ -/* 0x10 reserved */ -/* 0x18 reserved */ -/* #define BPF_COP 0x20 NetBSD "coprocessor" extensions */ -/* 0x28 reserved */ -/* 0x30 reserved */ -/* 0x38 reserved */ -/* #define BPF_COPX 0x40 NetBSD "coprocessor" extensions */ -/* also used on BSD/OS */ -/* 0x48 reserved */ -/* 0x50 reserved */ -/* 0x58 reserved */ -/* 0x60 reserved */ -/* 0x68 reserved */ -/* 0x70 reserved */ -/* 0x78 reserved */ -#define BPF_TXA 0x80 -/* 0x88 reserved */ -/* 0x90 reserved */ -/* 0x98 reserved */ -/* 0xa0 reserved */ -/* 0xa8 reserved */ -/* 0xb0 reserved */ -/* 0xb8 reserved */ -/* 0xc0 reserved; used on BSD/OS */ -/* 0xc8 reserved */ -/* 0xd0 reserved */ -/* 0xd8 reserved */ -/* 0xe0 reserved */ -/* 0xe8 reserved */ -/* 0xf0 reserved */ -/* 0xf8 reserved */ - -/* - * The instruction data structure. - */ -struct bpf_insn { - u_short code; - u_char jt; - u_char jf; - bpf_u_int32 k; -}; - -/* - * Auxiliary data, for use when interpreting a filter intended for the - * Linux kernel when the kernel rejects the filter (requiring us to - * run it in userland). It contains VLAN tag information. - */ -struct bpf_aux_data { - u_short vlan_tag_present; - u_short vlan_tag; -}; - -/* - * Macros for insn array initializers. - */ -#define BPF_STMT(code, k) { (u_short)(code), 0, 0, k } -#define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k } - -PCAP_API int bpf_validate(const struct bpf_insn *, int); -PCAP_API u_int bpf_filter(const struct bpf_insn *, const u_char *, u_int, u_int); -extern u_int bpf_filter_with_aux_data(const struct bpf_insn *, const u_char *, u_int, u_int, const struct bpf_aux_data *); - -/* - * Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST). - */ -#define BPF_MEMWORDS 16 - -#ifdef __cplusplus -} -#endif - -#endif /* !defined(_NET_BPF_H_) && !defined(_BPF_H_) && !defined(_H_BPF) && !defined(lib_pcap_bpf_h) */ |