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 * $FreeBSD$ 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 <net/if.h> 42 43 #include <stdio.h> 44 #include <stdlib.h> 45 #include <ctype.h> 46 #include <getopt.h> 47 #include <string.h> 48 #include <err.h> 49 50 #include <libifconfig.h> 51 52 #define N(a) (sizeof(a)/sizeof(a[0])) 53 54 const char *progname; 55 56 #define IEEE80211_MSG_11N 0x80000000 /* 11n mode debug */ 57 #define IEEE80211_MSG_DEBUG 0x40000000 /* IFF_DEBUG equivalent */ 58 #define IEEE80211_MSG_DUMPPKTS 0x20000000 /* IFF_LINK2 equivalant */ 59 #define IEEE80211_MSG_CRYPTO 0x10000000 /* crypto work */ 60 #define IEEE80211_MSG_INPUT 0x08000000 /* input handling */ 61 #define IEEE80211_MSG_XRATE 0x04000000 /* rate set handling */ 62 #define IEEE80211_MSG_ELEMID 0x02000000 /* element id parsing */ 63 #define IEEE80211_MSG_NODE 0x01000000 /* node handling */ 64 #define IEEE80211_MSG_ASSOC 0x00800000 /* association handling */ 65 #define IEEE80211_MSG_AUTH 0x00400000 /* authentication handling */ 66 #define IEEE80211_MSG_SCAN 0x00200000 /* scanning */ 67 #define IEEE80211_MSG_OUTPUT 0x00100000 /* output handling */ 68 #define IEEE80211_MSG_STATE 0x00080000 /* state machine */ 69 #define IEEE80211_MSG_POWER 0x00040000 /* power save handling */ 70 #define IEEE80211_MSG_HWMP 0x00020000 /* hybrid mesh protocol */ 71 #define IEEE80211_MSG_DOT1XSM 0x00010000 /* 802.1x state machine */ 72 #define IEEE80211_MSG_RADIUS 0x00008000 /* 802.1x radius client */ 73 #define IEEE80211_MSG_RADDUMP 0x00004000 /* dump 802.1x radius packets */ 74 #define IEEE80211_MSG_MESH 0x00002000 /* mesh networking */ 75 #define IEEE80211_MSG_WPA 0x00001000 /* WPA/RSN protocol */ 76 #define IEEE80211_MSG_ACL 0x00000800 /* ACL handling */ 77 #define IEEE80211_MSG_WME 0x00000400 /* WME protocol */ 78 #define IEEE80211_MSG_SUPERG 0x00000200 /* Atheros SuperG protocol */ 79 #define IEEE80211_MSG_DOTH 0x00000100 /* 802.11h support */ 80 #define IEEE80211_MSG_INACT 0x00000080 /* inactivity handling */ 81 #define IEEE80211_MSG_ROAM 0x00000040 /* sta-mode roaming */ 82 #define IEEE80211_MSG_RATECTL 0x00000020 /* tx rate control */ 83 #define IEEE80211_MSG_ACTION 0x00000010 /* action frame handling */ 84 #define IEEE80211_MSG_WDS 0x00000008 /* WDS handling */ 85 #define IEEE80211_MSG_IOCTL 0x00000004 /* ioctl handling */ 86 #define IEEE80211_MSG_TDMA 0x00000002 /* TDMA handling */ 87 88 static struct { 89 const char *name; 90 u_int bit; 91 } flags[] = { 92 { "11n", IEEE80211_MSG_11N }, 93 { "debug", IEEE80211_MSG_DEBUG }, 94 { "dumppkts", IEEE80211_MSG_DUMPPKTS }, 95 { "crypto", IEEE80211_MSG_CRYPTO }, 96 { "input", IEEE80211_MSG_INPUT }, 97 { "xrate", IEEE80211_MSG_XRATE }, 98 { "elemid", IEEE80211_MSG_ELEMID }, 99 { "node", IEEE80211_MSG_NODE }, 100 { "assoc", IEEE80211_MSG_ASSOC }, 101 { "auth", IEEE80211_MSG_AUTH }, 102 { "scan", IEEE80211_MSG_SCAN }, 103 { "output", IEEE80211_MSG_OUTPUT }, 104 { "state", IEEE80211_MSG_STATE }, 105 { "power", IEEE80211_MSG_POWER }, 106 { "hwmp", IEEE80211_MSG_HWMP }, 107 { "dot1xsm", IEEE80211_MSG_DOT1XSM }, 108 { "radius", IEEE80211_MSG_RADIUS }, 109 { "raddump", IEEE80211_MSG_RADDUMP }, 110 { "mesh", IEEE80211_MSG_MESH }, 111 { "wpa", IEEE80211_MSG_WPA }, 112 { "acl", IEEE80211_MSG_ACL }, 113 { "wme", IEEE80211_MSG_WME }, 114 { "superg", IEEE80211_MSG_SUPERG }, 115 { "doth", IEEE80211_MSG_DOTH }, 116 { "inact", IEEE80211_MSG_INACT }, 117 { "roam", IEEE80211_MSG_ROAM }, 118 { "rate", IEEE80211_MSG_RATECTL }, 119 { "action", IEEE80211_MSG_ACTION }, 120 { "wds", IEEE80211_MSG_WDS }, 121 { "ioctl", IEEE80211_MSG_IOCTL }, 122 { "tdma", IEEE80211_MSG_TDMA }, 123 }; 124 125 static u_int 126 getflag(const char *name, int len) 127 { 128 int i; 129 130 for (i = 0; i < N(flags); i++) 131 if (strncasecmp(flags[i].name, name, len) == 0) 132 return flags[i].bit; 133 return 0; 134 } 135 136 static void 137 usage(void) 138 { 139 int i; 140 141 fprintf(stderr, "usage: %s [-d | -i device] [flags]\n", progname); 142 fprintf(stderr, "where flags are:\n"); 143 for (i = 0; i < N(flags); i++) 144 printf("%s\n", flags[i].name); 145 exit(-1); 146 } 147 148 static void 149 setoid(char oid[], size_t oidlen, const char *wlan) 150 { 151 #ifdef __linux__ 152 if (wlan) 153 snprintf(oid, oidlen, "net.%s.debug", wlan); 154 #elif __FreeBSD__ 155 if (wlan) 156 snprintf(oid, oidlen, "net.wlan.%s.debug", wlan+4); 157 else 158 snprintf(oid, oidlen, "net.wlan.debug"); 159 #elif __NetBSD__ 160 if (wlan) 161 snprintf(oid, oidlen, "net.link.ieee80211.%s.debug", wlan); 162 else 163 snprintf(oid, oidlen, "net.link.ieee80211.debug"); 164 #else 165 #error "No support for this system" 166 #endif 167 } 168 169 static void 170 get_orig_iface_name(char *oid, size_t oid_size, char *name) 171 { 172 struct ifconfig_handle *h; 173 char *orig_name; 174 175 h = ifconfig_open(); 176 if (ifconfig_get_orig_name(h, name, &orig_name) < 0) { 177 /* check for original interface name. */ 178 orig_name = name; 179 } 180 181 if (strlen(orig_name) < strlen("wlan") + 1 || 182 strncmp(orig_name, "wlan", 4) != 0) 183 errx(1, "expecting a wlan interface name"); 184 185 ifconfig_close(h); 186 setoid(oid, oid_size, orig_name); 187 if (orig_name != name) 188 free(orig_name); 189 } 190 191 int 192 main(int argc, char *argv[]) 193 { 194 const char *cp, *tp; 195 const char *sep; 196 int op, i; 197 u_int32_t debug, ndebug; 198 size_t debuglen; 199 char oid[256]; 200 201 progname = argv[0]; 202 setoid(oid, sizeof(oid), "wlan0"); 203 if (argc > 1) { 204 if (strcmp(argv[1], "-d") == 0) { 205 setoid(oid, sizeof(oid), NULL); 206 argc -= 1, argv += 1; 207 } else if (strcmp(argv[1], "-i") == 0) { 208 if (argc <= 2) 209 errx(1, "missing interface name for -i option"); 210 get_orig_iface_name(oid, sizeof(oid), argv[2]); 211 argc -= 2, argv += 2; 212 } else if (strcmp(argv[1], "-?") == 0) 213 usage(); 214 } 215 216 debuglen = sizeof(debug); 217 if (sysctlbyname(oid, &debug, &debuglen, NULL, 0) < 0) 218 err(1, "sysctl-get(%s)", oid); 219 ndebug = debug; 220 for (; argc > 1; argc--, argv++) { 221 cp = argv[1]; 222 do { 223 u_int bit; 224 225 if (*cp == '-') { 226 cp++; 227 op = -1; 228 } else if (*cp == '+') { 229 cp++; 230 op = 1; 231 } else 232 op = 0; 233 for (tp = cp; *tp != '\0' && *tp != '+' && *tp != '-';) 234 tp++; 235 bit = getflag(cp, tp-cp); 236 if (op < 0) 237 ndebug &= ~bit; 238 else if (op > 0) 239 ndebug |= bit; 240 else { 241 if (bit == 0) { 242 int c = *cp; 243 if (isdigit(c)) 244 bit = strtoul(cp, NULL, 0); 245 else 246 errx(1, "unknown flag %.*s", 247 (int)(tp-cp), cp); 248 } 249 ndebug = bit; 250 } 251 } while (*(cp = tp) != '\0'); 252 } 253 if (debug != ndebug) { 254 printf("%s: 0x%x => ", oid, debug); 255 if (sysctlbyname(oid, NULL, NULL, &ndebug, sizeof(ndebug)) < 0) 256 err(1, "sysctl-set(%s)", oid); 257 printf("0x%x", ndebug); 258 debug = ndebug; 259 } else 260 printf("%s: 0x%x", oid, debug); 261 sep = "<"; 262 for (i = 0; i < N(flags); i++) 263 if (debug & flags[i].bit) { 264 printf("%s%s", sep, flags[i].name); 265 sep = ","; 266 } 267 printf("%s\n", *sep != '<' ? ">" : ""); 268 return 0; 269 } 270