wlandebug.c revision 164635
1/*- 2 * Copyright (c) 2002-2004 Sam Leffler, Errno Consulting 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification. 11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 12 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 13 * redistribution must be conditioned upon including a substantially 14 * similar Disclaimer requirement for further binary redistribution. 15 * 3. Neither the names of the above-listed copyright holders nor the names 16 * of any contributors may be used to endorse or promote products derived 17 * from this software without specific prior written permission. 18 * 19 * Alternatively, this software may be distributed under the terms of the 20 * GNU General Public License ("GPL") version 2 as published by the Free 21 * Software Foundation. 22 * 23 * NO WARRANTY 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 26 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 27 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 28 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 29 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 32 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 34 * THE POSSIBILITY OF SUCH DAMAGES. 35 * 36 * $FreeBSD: head/usr.sbin/wlandebug/wlandebug.c 164635 2006-11-26 19:56:25Z sam $ 37 */ 38 39/* 40 * wlandebug [-i interface] flags 41 * (default interface is wlan.0). 42 */ 43#include <sys/types.h> 44 45#include <stdio.h> 46#include <ctype.h> 47#include <getopt.h> 48#include <string.h> 49 50#define N(a) (sizeof(a)/sizeof(a[0])) 51 52const char *progname; 53 54#define IEEE80211_MSG_DEBUG 0x40000000 /* IFF_DEBUG equivalent */ 55#define IEEE80211_MSG_DUMPPKTS 0x20000000 /* IFF_LINK2 equivalant */ 56#define IEEE80211_MSG_CRYPTO 0x10000000 /* crypto work */ 57#define IEEE80211_MSG_INPUT 0x08000000 /* input handling */ 58#define IEEE80211_MSG_XRATE 0x04000000 /* rate set handling */ 59#define IEEE80211_MSG_ELEMID 0x02000000 /* element id parsing */ 60#define IEEE80211_MSG_NODE 0x01000000 /* node handling */ 61#define IEEE80211_MSG_ASSOC 0x00800000 /* association handling */ 62#define IEEE80211_MSG_AUTH 0x00400000 /* authentication handling */ 63#define IEEE80211_MSG_SCAN 0x00200000 /* scanning */ 64#define IEEE80211_MSG_OUTPUT 0x00100000 /* output handling */ 65#define IEEE80211_MSG_STATE 0x00080000 /* state machine */ 66#define IEEE80211_MSG_POWER 0x00040000 /* power save handling */ 67#define IEEE80211_MSG_DOT1X 0x00020000 /* 802.1x authenticator */ 68#define IEEE80211_MSG_DOT1XSM 0x00010000 /* 802.1x state machine */ 69#define IEEE80211_MSG_RADIUS 0x00008000 /* 802.1x radius client */ 70#define IEEE80211_MSG_RADDUMP 0x00004000 /* dump 802.1x radius packets */ 71#define IEEE80211_MSG_RADKEYS 0x00002000 /* dump 802.1x keys */ 72#define IEEE80211_MSG_WPA 0x00001000 /* WPA/RSN protocol */ 73#define IEEE80211_MSG_ACL 0x00000800 /* ACL handling */ 74#define IEEE80211_MSG_WME 0x00000400 /* WME protocol */ 75#define IEEE80211_MSG_SUPERG 0x00000200 /* Atheros SuperG protocol */ 76#define IEEE80211_MSG_DOTH 0x00000100 /* 802.11h support */ 77#define IEEE80211_MSG_INACT 0x00000080 /* inactivity handling */ 78#define IEEE80211_MSG_ROAM 0x00000040 /* sta-mode roaming */ 79#define IEEE80211_MSG_RATECTL 0x00000020 /* tx rate control */ 80 81static struct { 82 const char *name; 83 u_int bit; 84} flags[] = { 85 { "debug", IEEE80211_MSG_DEBUG }, 86 { "dumppkts", IEEE80211_MSG_DUMPPKTS }, 87 { "crypto", IEEE80211_MSG_CRYPTO }, 88 { "input", IEEE80211_MSG_INPUT }, 89 { "xrate", IEEE80211_MSG_XRATE }, 90 { "elemid", IEEE80211_MSG_ELEMID }, 91 { "node", IEEE80211_MSG_NODE }, 92 { "assoc", IEEE80211_MSG_ASSOC }, 93 { "auth", IEEE80211_MSG_AUTH }, 94 { "scan", IEEE80211_MSG_SCAN }, 95 { "output", IEEE80211_MSG_OUTPUT }, 96 { "state", IEEE80211_MSG_STATE }, 97 { "power", IEEE80211_MSG_POWER }, 98 { "dotx1", IEEE80211_MSG_DOT1X }, 99 { "dot1xsm", IEEE80211_MSG_DOT1XSM }, 100 { "radius", IEEE80211_MSG_RADIUS }, 101 { "raddump", IEEE80211_MSG_RADDUMP }, 102 { "radkeys", IEEE80211_MSG_RADKEYS }, 103 { "wpa", IEEE80211_MSG_WPA }, 104 { "acl", IEEE80211_MSG_ACL }, 105 { "wme", IEEE80211_MSG_WME }, 106 { "superg", IEEE80211_MSG_SUPERG }, 107 { "doth", IEEE80211_MSG_DOTH }, 108 { "inact", IEEE80211_MSG_INACT }, 109 { "roam", IEEE80211_MSG_ROAM }, 110 { "rate", IEEE80211_MSG_RATECTL }, 111}; 112 113static u_int 114getflag(const char *name, int len) 115{ 116 int i; 117 118 for (i = 0; i < N(flags); i++) 119 if (strncasecmp(flags[i].name, name, len) == 0) 120 return flags[i].bit; 121 return 0; 122} 123 124static const char * 125getflagname(u_int flag) 126{ 127 int i; 128 129 for (i = 0; i < N(flags); i++) 130 if (flags[i].bit == flag) 131 return flags[i].name; 132 return "???"; 133} 134 135static void 136usage(void) 137{ 138 int i; 139 140 fprintf(stderr, "usage: %s [-i device] [flags]\n", progname); 141 fprintf(stderr, "where flags are:\n"); 142 for (i = 0; i < N(flags); i++) 143 printf("%s\n", flags[i].name); 144 exit(-1); 145} 146 147int 148main(int argc, char *argv[]) 149{ 150 const char *ifname = "ath0"; 151 const char *cp, *tp; 152 const char *sep; 153 int c, op, i, unit; 154 u_int32_t debug, ndebug; 155 size_t debuglen, parentlen; 156 char oid[256], parent[256]; 157 158 progname = argv[0]; 159 if (argc > 1) { 160 if (strcmp(argv[1], "-i") == 0) { 161 if (argc < 2) 162 errx(1, "missing interface name for -i option"); 163 ifname = argv[2]; 164 argc -= 2, argv += 2; 165 } else if (strcmp(argv[1], "-?") == 0) 166 usage(); 167 } 168 169 for (unit = 0; unit < 10; unit++) { 170#ifdef __linux__ 171 snprintf(oid, sizeof(oid), "net.wlan%d.%%parent", unit); 172#else 173 snprintf(oid, sizeof(oid), "net.wlan.%d.%%parent", unit); 174#endif 175 parentlen = sizeof(parent); 176 if (sysctlbyname(oid, parent, &parentlen, NULL, 0) >= 0 && 177 strncmp(parent, ifname, parentlen) == 0) 178 break; 179 } 180 if (unit == 10) 181 errx(1, "%s: cannot locate wlan sysctl node.", ifname); 182#ifdef __linux__ 183 snprintf(oid, sizeof(oid), "net.wlan%d.debug", unit); 184#else 185 snprintf(oid, sizeof(oid), "net.wlan.%d.debug", unit); 186#endif 187 debuglen = sizeof(debug); 188 if (sysctlbyname(oid, &debug, &debuglen, NULL, 0) < 0) 189 err(1, "sysctl-get(%s)", oid); 190 ndebug = debug; 191 for (; argc > 1; argc--, argv++) { 192 cp = argv[1]; 193 do { 194 u_int bit; 195 196 if (*cp == '-') { 197 cp++; 198 op = -1; 199 } else if (*cp == '+') { 200 cp++; 201 op = 1; 202 } else 203 op = 0; 204 for (tp = cp; *tp != '\0' && *tp != '+' && *tp != '-';) 205 tp++; 206 bit = getflag(cp, tp-cp); 207 if (op < 0) 208 ndebug &= ~bit; 209 else if (op > 0) 210 ndebug |= bit; 211 else { 212 if (bit == 0) { 213 if (isdigit(*cp)) 214 bit = strtoul(cp, NULL, 0); 215 else 216 errx(1, "unknown flag %.*s", 217 tp-cp, cp); 218 } 219 ndebug = bit; 220 } 221 } while (*(cp = tp) != '\0'); 222 } 223 if (debug != ndebug) { 224 printf("%s: 0x%x => ", oid, debug); 225 if (sysctlbyname(oid, NULL, NULL, &ndebug, sizeof(ndebug)) < 0) 226 err(1, "sysctl-set(%s)", oid); 227 printf("0x%x", ndebug); 228 debug = ndebug; 229 } else 230 printf("%s: 0x%x", oid, debug); 231 sep = "<"; 232 for (i = 0; i < N(flags); i++) 233 if (debug & flags[i].bit) { 234 printf("%s%s", sep, flags[i].name); 235 sep = ","; 236 } 237 printf("%s\n", *sep != '<' ? ">" : ""); 238 return 0; 239} 240