1 /* 2 * Copyright (c) 1992, 1993, 1994, 1995, 1996 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that: (1) source code distributions 7 * retain the above copyright notice and this paragraph in its entirety, (2) 8 * distributions including binary code include the above copyright notice and 9 * this paragraph in its entirety in the documentation or other materials 10 * provided with the distribution, and (3) all advertising materials mentioning 11 * features or use of this software display the following acknowledgement: 12 * ``This product includes software developed by the University of California, 13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 14 * the University nor the names of its contributors may be used to endorse 15 * or promote products derived from this software without specific prior 16 * written permission. 17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 20 */ 21 #include <sys/cdefs.h> 22 #ifndef lint 23 __RCSID("$NetBSD: bpf_dump.c,v 1.7 2024/09/02 16:15:29 christos Exp $"); 24 #endif 25 26 #include <config.h> 27 28 #include "netdissect-stdinc.h" 29 30 #include <stdio.h> 31 32 #include "netdissect.h" 33 #include "interface.h" 34 35 void 36 bpf_dump(const struct bpf_program *p, int option) 37 { 38 struct bpf_insn *insn; 39 int i; 40 int n = p->bf_len; 41 42 insn = p->bf_insns; 43 if (option > 2) { 44 printf("%d\n", n); 45 for (i = 0; i < n; ++insn, ++i) { 46 printf("%u %u %u %u\n", insn->code, 47 insn->jt, insn->jf, insn->k); 48 } 49 return ; 50 } 51 if (option > 1) { 52 for (i = 0; i < n; ++insn, ++i) 53 printf("{ 0x%x, %d, %d, 0x%08x },\n", 54 insn->code, insn->jt, insn->jf, insn->k); 55 return; 56 } 57 for (i = 0; i < n; ++insn, ++i) { 58 #ifdef BDEBUG 59 extern int bids[]; 60 printf(bids[i] > 0 ? "[%02d]" : " -- ", bids[i] - 1); 61 #endif 62 puts(bpf_image(insn, i)); 63 } 64 } 65