1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 32 /* 33 * wlandebug [-i interface] flags 34 * (default interface is wlan.0). 35 */ 36 #include <sys/types.h> 37 #include <sys/sysctl.h> 38 39 #include <net/if.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 #include <libifconfig.h> 49 50 #define N(a) (sizeof(a)/sizeof(a[0])) 51 52 const char *progname; 53 54 #define IEEE80211_MSG_11N 0x80000000 /* 11n mode debug */ 55 #define IEEE80211_MSG_DEBUG 0x40000000 /* IFF_DEBUG equivalent */ 56 #define IEEE80211_MSG_DUMPPKTS 0x20000000 /* IFF_LINK2 equivalent */ 57 #define IEEE80211_MSG_CRYPTO 0x10000000 /* crypto work */ 58 #define IEEE80211_MSG_INPUT 0x08000000 /* input handling */ 59 #define IEEE80211_MSG_XRATE 0x04000000 /* rate set handling */ 60 #define IEEE80211_MSG_ELEMID 0x02000000 /* element id parsing */ 61 #define IEEE80211_MSG_NODE 0x01000000 /* node handling */ 62 #define IEEE80211_MSG_ASSOC 0x00800000 /* association handling */ 63 #define IEEE80211_MSG_AUTH 0x00400000 /* authentication handling */ 64 #define IEEE80211_MSG_SCAN 0x00200000 /* scanning */ 65 #define IEEE80211_MSG_OUTPUT 0x00100000 /* output handling */ 66 #define IEEE80211_MSG_STATE 0x00080000 /* state machine */ 67 #define IEEE80211_MSG_POWER 0x00040000 /* power save handling */ 68 #define IEEE80211_MSG_HWMP 0x00020000 /* hybrid mesh protocol */ 69 #define IEEE80211_MSG_DOT1XSM 0x00010000 /* 802.1x state machine */ 70 #define IEEE80211_MSG_RADIUS 0x00008000 /* 802.1x radius client */ 71 #define IEEE80211_MSG_RADDUMP 0x00004000 /* dump 802.1x radius packets */ 72 #define IEEE80211_MSG_MESH 0x00002000 /* mesh networking */ 73 #define IEEE80211_MSG_WPA 0x00001000 /* WPA/RSN protocol */ 74 #define IEEE80211_MSG_ACL 0x00000800 /* ACL handling */ 75 #define IEEE80211_MSG_WME 0x00000400 /* WME protocol */ 76 #define IEEE80211_MSG_SUPERG 0x00000200 /* Atheros SuperG protocol */ 77 #define IEEE80211_MSG_DOTH 0x00000100 /* 802.11h support */ 78 #define IEEE80211_MSG_INACT 0x00000080 /* inactivity handling */ 79 #define IEEE80211_MSG_ROAM 0x00000040 /* sta-mode roaming */ 80 #define IEEE80211_MSG_RATECTL 0x00000020 /* tx rate control */ 81 #define IEEE80211_MSG_ACTION 0x00000010 /* action frame handling */ 82 #define IEEE80211_MSG_WDS 0x00000008 /* WDS handling */ 83 #define IEEE80211_MSG_IOCTL 0x00000004 /* ioctl handling */ 84 #define IEEE80211_MSG_TDMA 0x00000002 /* TDMA handling */ 85 86 static struct { 87 const char *name; 88 u_int bit; 89 } flags[] = { 90 { "11n", IEEE80211_MSG_11N }, 91 { "debug", IEEE80211_MSG_DEBUG }, 92 { "dumppkts", IEEE80211_MSG_DUMPPKTS }, 93 { "crypto", IEEE80211_MSG_CRYPTO }, 94 { "input", IEEE80211_MSG_INPUT }, 95 { "xrate", IEEE80211_MSG_XRATE }, 96 { "elemid", IEEE80211_MSG_ELEMID }, 97 { "node", IEEE80211_MSG_NODE }, 98 { "assoc", IEEE80211_MSG_ASSOC }, 99 { "auth", IEEE80211_MSG_AUTH }, 100 { "scan", IEEE80211_MSG_SCAN }, 101 { "output", IEEE80211_MSG_OUTPUT }, 102 { "state", IEEE80211_MSG_STATE }, 103 { "power", IEEE80211_MSG_POWER }, 104 { "hwmp", IEEE80211_MSG_HWMP }, 105 { "dot1xsm", IEEE80211_MSG_DOT1XSM }, 106 { "radius", IEEE80211_MSG_RADIUS }, 107 { "raddump", IEEE80211_MSG_RADDUMP }, 108 { "mesh", IEEE80211_MSG_MESH }, 109 { "wpa", IEEE80211_MSG_WPA }, 110 { "acl", IEEE80211_MSG_ACL }, 111 { "wme", IEEE80211_MSG_WME }, 112 { "superg", IEEE80211_MSG_SUPERG }, 113 { "doth", IEEE80211_MSG_DOTH }, 114 { "inact", IEEE80211_MSG_INACT }, 115 { "roam", IEEE80211_MSG_ROAM }, 116 { "rate", IEEE80211_MSG_RATECTL }, 117 { "action", IEEE80211_MSG_ACTION }, 118 { "wds", IEEE80211_MSG_WDS }, 119 { "ioctl", IEEE80211_MSG_IOCTL }, 120 { "tdma", IEEE80211_MSG_TDMA }, 121 }; 122 123 static u_int 124 getflag(const char *name, int len) 125 { 126 int i; 127 128 for (i = 0; i < N(flags); i++) 129 if (strncasecmp(flags[i].name, name, len) == 0) 130 return flags[i].bit; 131 return 0; 132 } 133 134 static void 135 usage(void) 136 { 137 int i; 138 139 fprintf(stderr, "usage: %s [-d | -i device] [flags]\n", progname); 140 fprintf(stderr, "where flags are:\n"); 141 for (i = 0; i < N(flags); i++) 142 printf("%s\n", flags[i].name); 143 exit(-1); 144 } 145 146 static void 147 setoid(char oid[], size_t oidlen, const char *wlan) 148 { 149 #ifdef __linux__ 150 if (wlan) 151 snprintf(oid, oidlen, "net.%s.debug", wlan); 152 #elif __FreeBSD__ 153 if (wlan) 154 snprintf(oid, oidlen, "net.wlan.%s.debug", wlan+4); 155 else 156 snprintf(oid, oidlen, "net.wlan.debug"); 157 #elif __NetBSD__ 158 if (wlan) 159 snprintf(oid, oidlen, "net.link.ieee80211.%s.debug", wlan); 160 else 161 snprintf(oid, oidlen, "net.link.ieee80211.debug"); 162 #else 163 #error "No support for this system" 164 #endif 165 } 166 167 static void 168 get_orig_iface_name(char *oid, size_t oid_size, char *name) 169 { 170 struct ifconfig_handle *h; 171 char *orig_name; 172 173 h = ifconfig_open(); 174 if (ifconfig_get_orig_name(h, name, &orig_name) < 0) { 175 /* check for original interface name. */ 176 orig_name = name; 177 } 178 179 if (strlen(orig_name) < strlen("wlan") + 1 || 180 strncmp(orig_name, "wlan", 4) != 0) 181 errx(1, "expecting a wlan interface name"); 182 183 ifconfig_close(h); 184 setoid(oid, oid_size, orig_name); 185 if (orig_name != name) 186 free(orig_name); 187 } 188 189 int 190 main(int argc, char *argv[]) 191 { 192 const char *cp, *tp; 193 const char *sep; 194 int op, i; 195 u_int32_t debug, ndebug; 196 size_t debuglen; 197 char oid[256]; 198 199 progname = argv[0]; 200 setoid(oid, sizeof(oid), "wlan0"); 201 if (argc > 1) { 202 if (strcmp(argv[1], "-d") == 0) { 203 setoid(oid, sizeof(oid), NULL); 204 argc -= 1, argv += 1; 205 } else if (strcmp(argv[1], "-i") == 0) { 206 if (argc <= 2) 207 errx(1, "missing interface name for -i option"); 208 get_orig_iface_name(oid, sizeof(oid), argv[2]); 209 argc -= 2, argv += 2; 210 } else if (strcmp(argv[1], "-?") == 0) 211 usage(); 212 } 213 214 debuglen = sizeof(debug); 215 if (sysctlbyname(oid, &debug, &debuglen, NULL, 0) < 0) 216 err(1, "sysctl-get(%s)", oid); 217 ndebug = debug; 218 for (; argc > 1; argc--, argv++) { 219 cp = argv[1]; 220 do { 221 u_int bit; 222 223 if (*cp == '-') { 224 cp++; 225 op = -1; 226 } else if (*cp == '+') { 227 cp++; 228 op = 1; 229 } else 230 op = 0; 231 for (tp = cp; *tp != '\0' && *tp != '+' && *tp != '-';) 232 tp++; 233 bit = getflag(cp, tp-cp); 234 if (op < 0) 235 ndebug &= ~bit; 236 else if (op > 0) 237 ndebug |= bit; 238 else { 239 if (bit == 0) { 240 int c = *cp; 241 if (isdigit(c)) 242 bit = strtoul(cp, NULL, 0); 243 else 244 errx(1, "unknown flag %.*s", 245 (int)(tp-cp), cp); 246 } 247 ndebug = bit; 248 } 249 } while (*(cp = tp) != '\0'); 250 } 251 if (debug != ndebug) { 252 printf("%s: 0x%x => ", oid, debug); 253 if (sysctlbyname(oid, NULL, NULL, &ndebug, sizeof(ndebug)) < 0) 254 err(1, "sysctl-set(%s)", oid); 255 printf("0x%x", ndebug); 256 debug = ndebug; 257 } else 258 printf("%s: 0x%x", oid, debug); 259 sep = "<"; 260 for (i = 0; i < N(flags); i++) 261 if (debug & flags[i].bit) { 262 printf("%s%s", sep, flags[i].name); 263 sep = ","; 264 } 265 printf("%s\n", *sep != '<' ? ">" : ""); 266 return 0; 267 } 268