1 /*- 2 * Copyright (c) 2002-2009 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 * 16 * NO WARRANTY 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 20 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 21 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 22 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 27 * THE POSSIBILITY OF SUCH DAMAGES. 28 * 29 * $FreeBSD$ 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 <stdio.h> 40 #include <stdlib.h> 41 #include <ctype.h> 42 #include <getopt.h> 43 #include <string.h> 44 #include <err.h> 45 46 #include <libifconfig.h> 47 48 #define N(a) (sizeof(a)/sizeof(a[0])) 49 50 const 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 84 static 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 }; 120 121 static u_int 122 getflag(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 } 131 132 static void 133 usage(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 } 143 144 static void 145 setoid(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 } 164 165 static void 166 get_orig_iface_name(char *oid, size_t oid_size, char *name) 167 { 168 struct ifconfig_handle *h; 169 char *orig_name; 170 171 h = ifconfig_open(); 172 if (ifconfig_get_orig_name(h, name, &orig_name) < 0) 173 errc(1, ifconfig_err_errno(h), "cannot get interface name"); 174 175 if (strlen(orig_name) < strlen("wlan") + 1) 176 errx(1, "expecting a wlan interface name"); 177 178 ifconfig_close(h); 179 setoid(oid, oid_size, orig_name); 180 free(orig_name); 181 } 182 183 int 184 main(int argc, char *argv[]) 185 { 186 const char *cp, *tp; 187 const char *sep; 188 int op, i; 189 u_int32_t debug, ndebug; 190 size_t debuglen; 191 char oid[256]; 192 193 progname = argv[0]; 194 setoid(oid, sizeof(oid), "wlan0"); 195 if (argc > 1) { 196 if (strcmp(argv[1], "-d") == 0) { 197 setoid(oid, sizeof(oid), NULL); 198 argc -= 1, argv += 1; 199 } else if (strcmp(argv[1], "-i") == 0) { 200 if (argc <= 2) 201 errx(1, "missing interface name for -i option"); 202 get_orig_iface_name(oid, sizeof(oid), argv[2]); 203 argc -= 2, argv += 2; 204 } else if (strcmp(argv[1], "-?") == 0) 205 usage(); 206 } 207 208 debuglen = sizeof(debug); 209 if (sysctlbyname(oid, &debug, &debuglen, NULL, 0) < 0) 210 err(1, "sysctl-get(%s)", oid); 211 ndebug = debug; 212 for (; argc > 1; argc--, argv++) { 213 cp = argv[1]; 214 do { 215 u_int bit; 216 217 if (*cp == '-') { 218 cp++; 219 op = -1; 220 } else if (*cp == '+') { 221 cp++; 222 op = 1; 223 } else 224 op = 0; 225 for (tp = cp; *tp != '\0' && *tp != '+' && *tp != '-';) 226 tp++; 227 bit = getflag(cp, tp-cp); 228 if (op < 0) 229 ndebug &= ~bit; 230 else if (op > 0) 231 ndebug |= bit; 232 else { 233 if (bit == 0) { 234 int c = *cp; 235 if (isdigit(c)) 236 bit = strtoul(cp, NULL, 0); 237 else 238 errx(1, "unknown flag %.*s", 239 (int)(tp-cp), cp); 240 } 241 ndebug = bit; 242 } 243 } while (*(cp = tp) != '\0'); 244 } 245 if (debug != ndebug) { 246 printf("%s: 0x%x => ", oid, debug); 247 if (sysctlbyname(oid, NULL, NULL, &ndebug, sizeof(ndebug)) < 0) 248 err(1, "sysctl-set(%s)", oid); 249 printf("0x%x", ndebug); 250 debug = ndebug; 251 } else 252 printf("%s: 0x%x", oid, debug); 253 sep = "<"; 254 for (i = 0; i < N(flags); i++) 255 if (debug & flags[i].bit) { 256 printf("%s%s", sep, flags[i].name); 257 sep = ","; 258 } 259 printf("%s\n", *sep != '<' ? ">" : ""); 260 return 0; 261 } 262