1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer, 12 * without modification. 13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 14 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 15 * redistribution must be conditioned upon including a substantially 16 * similar Disclaimer requirement for further binary redistribution. 17 * 18 * NO WARRANTY 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 22 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 23 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 24 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 27 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 29 * THE POSSIBILITY OF SUCH DAMAGES. 30 * 31 * $FreeBSD: stable/11/usr.sbin/wlandebug/wlandebug.c 330449 2018-03-05 07:26:05Z eadler $ 32 */ 33 34/* 35 * wlandebug [-i interface] flags 36 * (default interface is wlan.0). 37 */ 38#include <sys/types.h> 39#include <sys/sysctl.h> 40 41#include <stdio.h> 42#include <stdlib.h> 43#include <ctype.h> 44#include <getopt.h> 45#include <string.h> 46#include <err.h> 47 48#define N(a) (sizeof(a)/sizeof(a[0])) 49 50const char *progname; 51 52#define IEEE80211_MSG_11N 0x80000000 /* 11n mode debug */ 53#define IEEE80211_MSG_DEBUG 0x40000000 /* IFF_DEBUG equivalent */ 54#define IEEE80211_MSG_DUMPPKTS 0x20000000 /* IFF_LINK2 equivalant */ 55#define IEEE80211_MSG_CRYPTO 0x10000000 /* crypto work */ 56#define IEEE80211_MSG_INPUT 0x08000000 /* input handling */ 57#define IEEE80211_MSG_XRATE 0x04000000 /* rate set handling */ 58#define IEEE80211_MSG_ELEMID 0x02000000 /* element id parsing */ 59#define IEEE80211_MSG_NODE 0x01000000 /* node handling */ 60#define IEEE80211_MSG_ASSOC 0x00800000 /* association handling */ 61#define IEEE80211_MSG_AUTH 0x00400000 /* authentication handling */ 62#define IEEE80211_MSG_SCAN 0x00200000 /* scanning */ 63#define IEEE80211_MSG_OUTPUT 0x00100000 /* output handling */ 64#define IEEE80211_MSG_STATE 0x00080000 /* state machine */ 65#define IEEE80211_MSG_POWER 0x00040000 /* power save handling */ 66#define IEEE80211_MSG_HWMP 0x00020000 /* hybrid mesh protocol */ 67#define IEEE80211_MSG_DOT1XSM 0x00010000 /* 802.1x state machine */ 68#define IEEE80211_MSG_RADIUS 0x00008000 /* 802.1x radius client */ 69#define IEEE80211_MSG_RADDUMP 0x00004000 /* dump 802.1x radius packets */ 70#define IEEE80211_MSG_MESH 0x00002000 /* mesh networking */ 71#define IEEE80211_MSG_WPA 0x00001000 /* WPA/RSN protocol */ 72#define IEEE80211_MSG_ACL 0x00000800 /* ACL handling */ 73#define IEEE80211_MSG_WME 0x00000400 /* WME protocol */ 74#define IEEE80211_MSG_SUPERG 0x00000200 /* Atheros SuperG protocol */ 75#define IEEE80211_MSG_DOTH 0x00000100 /* 802.11h support */ 76#define IEEE80211_MSG_INACT 0x00000080 /* inactivity handling */ 77#define IEEE80211_MSG_ROAM 0x00000040 /* sta-mode roaming */ 78#define IEEE80211_MSG_RATECTL 0x00000020 /* tx rate control */ 79#define IEEE80211_MSG_ACTION 0x00000010 /* action frame handling */ 80#define IEEE80211_MSG_WDS 0x00000008 /* WDS handling */ 81#define IEEE80211_MSG_IOCTL 0x00000004 /* ioctl handling */ 82#define IEEE80211_MSG_TDMA 0x00000002 /* TDMA handling */ 83 84static struct { 85 const char *name; 86 u_int bit; 87} flags[] = { 88 { "11n", IEEE80211_MSG_11N }, 89 { "debug", IEEE80211_MSG_DEBUG }, 90 { "dumppkts", IEEE80211_MSG_DUMPPKTS }, 91 { "crypto", IEEE80211_MSG_CRYPTO }, 92 { "input", IEEE80211_MSG_INPUT }, 93 { "xrate", IEEE80211_MSG_XRATE }, 94 { "elemid", IEEE80211_MSG_ELEMID }, 95 { "node", IEEE80211_MSG_NODE }, 96 { "assoc", IEEE80211_MSG_ASSOC }, 97 { "auth", IEEE80211_MSG_AUTH }, 98 { "scan", IEEE80211_MSG_SCAN }, 99 { "output", IEEE80211_MSG_OUTPUT }, 100 { "state", IEEE80211_MSG_STATE }, 101 { "power", IEEE80211_MSG_POWER }, 102 { "hwmp", IEEE80211_MSG_HWMP }, 103 { "dot1xsm", IEEE80211_MSG_DOT1XSM }, 104 { "radius", IEEE80211_MSG_RADIUS }, 105 { "raddump", IEEE80211_MSG_RADDUMP }, 106 { "mesh", IEEE80211_MSG_MESH }, 107 { "wpa", IEEE80211_MSG_WPA }, 108 { "acl", IEEE80211_MSG_ACL }, 109 { "wme", IEEE80211_MSG_WME }, 110 { "superg", IEEE80211_MSG_SUPERG }, 111 { "doth", IEEE80211_MSG_DOTH }, 112 { "inact", IEEE80211_MSG_INACT }, 113 { "roam", IEEE80211_MSG_ROAM }, 114 { "rate", IEEE80211_MSG_RATECTL }, 115 { "action", IEEE80211_MSG_ACTION }, 116 { "wds", IEEE80211_MSG_WDS }, 117 { "ioctl", IEEE80211_MSG_IOCTL }, 118 { "tdma", IEEE80211_MSG_TDMA }, 119}; 120 121static u_int 122getflag(const char *name, int len) 123{ 124 int i; 125 126 for (i = 0; i < N(flags); i++) 127 if (strncasecmp(flags[i].name, name, len) == 0) 128 return flags[i].bit; 129 return 0; 130} 131 132static void 133usage(void) 134{ 135 int i; 136 137 fprintf(stderr, "usage: %s [-d | -i device] [flags]\n", progname); 138 fprintf(stderr, "where flags are:\n"); 139 for (i = 0; i < N(flags); i++) 140 printf("%s\n", flags[i].name); 141 exit(-1); 142} 143 144static void 145setoid(char oid[], size_t oidlen, const char *wlan) 146{ 147#ifdef __linux__ 148 if (wlan) 149 snprintf(oid, oidlen, "net.%s.debug", wlan); 150#elif __FreeBSD__ 151 if (wlan) 152 snprintf(oid, oidlen, "net.wlan.%s.debug", wlan+4); 153 else 154 snprintf(oid, oidlen, "net.wlan.debug"); 155#elif __NetBSD__ 156 if (wlan) 157 snprintf(oid, oidlen, "net.link.ieee80211.%s.debug", wlan); 158 else 159 snprintf(oid, oidlen, "net.link.ieee80211.debug"); 160#else 161#error "No support for this system" 162#endif 163} 164 165int 166main(int argc, char *argv[]) 167{ 168 const char *cp, *tp; 169 const char *sep; 170 int op, i; 171 u_int32_t debug, ndebug; 172 size_t debuglen; 173 char oid[256]; 174 175 progname = argv[0]; 176 setoid(oid, sizeof(oid), "wlan0"); 177 if (argc > 1) { 178 if (strcmp(argv[1], "-d") == 0) { 179 setoid(oid, sizeof(oid), NULL); 180 argc -= 1, argv += 1; 181 } else if (strcmp(argv[1], "-i") == 0) { 182 if (argc <= 2) 183 errx(1, "missing interface name for -i option"); 184 if (strncmp(argv[2], "wlan", 4) != 0) 185 errx(1, "expecting a wlan interface name"); 186 setoid(oid, sizeof(oid), argv[2]); 187 argc -= 2, argv += 2; 188 } else if (strcmp(argv[1], "-?") == 0) 189 usage(); 190 } 191 192 debuglen = sizeof(debug); 193 if (sysctlbyname(oid, &debug, &debuglen, NULL, 0) < 0) 194 err(1, "sysctl-get(%s)", oid); 195 ndebug = debug; 196 for (; argc > 1; argc--, argv++) { 197 cp = argv[1]; 198 do { 199 u_int bit; 200 201 if (*cp == '-') { 202 cp++; 203 op = -1; 204 } else if (*cp == '+') { 205 cp++; 206 op = 1; 207 } else 208 op = 0; 209 for (tp = cp; *tp != '\0' && *tp != '+' && *tp != '-';) 210 tp++; 211 bit = getflag(cp, tp-cp); 212 if (op < 0) 213 ndebug &= ~bit; 214 else if (op > 0) 215 ndebug |= bit; 216 else { 217 if (bit == 0) { 218 int c = *cp; 219 if (isdigit(c)) 220 bit = strtoul(cp, NULL, 0); 221 else 222 errx(1, "unknown flag %.*s", 223 (int)(tp-cp), cp); 224 } 225 ndebug = bit; 226 } 227 } while (*(cp = tp) != '\0'); 228 } 229 if (debug != ndebug) { 230 printf("%s: 0x%x => ", oid, debug); 231 if (sysctlbyname(oid, NULL, NULL, &ndebug, sizeof(ndebug)) < 0) 232 err(1, "sysctl-set(%s)", oid); 233 printf("0x%x", ndebug); 234 debug = ndebug; 235 } else 236 printf("%s: 0x%x", oid, debug); 237 sep = "<"; 238 for (i = 0; i < N(flags); i++) 239 if (debug & flags[i].bit) { 240 printf("%s%s", sep, flags[i].name); 241 sep = ","; 242 } 243 printf("%s\n", *sep != '<' ? ">" : ""); 244 return 0; 245} 246