tools/tools/wlandebug/wlandebug.c

   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: src/tools/tools/net80211/wlandebug/wlandebug.c,v 1.3 2007/01/12 05:36:17 sam Exp $
  37  * $DragonFly: src/tools/tools/wlandebug/wlandebug.c,v 1.1 2007/03/04 13:15:48 sephe Exp $
  38  */
  39
  40 /*
  41  * wlandebug -i interface [flags]
  42  */
  43
  44 #include <sys/types.h>
  45 #include <netproto/802_11/ieee80211_var.h>
  46
  47 #include <stdio.h>
  48 #include <ctype.h>
  49 #include <getopt.h>
  50 #include <string.h>
  51
  52 #define N(a)    (sizeof(a)/sizeof(a[0]))
  53
  54 const char *progname;
  55
  56 static struct {
  57         const char      *name;
  58         u_int           bit;
  59 } flags[] = {
  60         { "debug",      IEEE80211_MSG_DEBUG },
  61         { "dumppkts",   IEEE80211_MSG_DUMPPKTS },
  62         { "crypto",     IEEE80211_MSG_CRYPTO },
  63         { "input",      IEEE80211_MSG_INPUT },
  64         { "xrate",      IEEE80211_MSG_XRATE },
  65         { "elemid",     IEEE80211_MSG_ELEMID },
  66         { "node",       IEEE80211_MSG_NODE },
  67         { "assoc",      IEEE80211_MSG_ASSOC },
  68         { "auth",       IEEE80211_MSG_AUTH },
  69         { "scan",       IEEE80211_MSG_SCAN },
  70         { "output",     IEEE80211_MSG_OUTPUT },
  71         { "state",      IEEE80211_MSG_STATE },
  72         { "power",      IEEE80211_MSG_POWER },
  73         { "dot1x",      IEEE80211_MSG_DOT1X },
  74         { "dot1xsm",    IEEE80211_MSG_DOT1XSM },
  75         { "radius",     IEEE80211_MSG_RADIUS },
  76         { "raddump",    IEEE80211_MSG_RADDUMP },
  77         { "radkeys",    IEEE80211_MSG_RADKEYS },
  78         { "wpa",        IEEE80211_MSG_WPA },
  79         { "acl",        IEEE80211_MSG_ACL },
  80         { "wme",        IEEE80211_MSG_WME },
  81         { "superg",     IEEE80211_MSG_SUPERG },
  82         { "doth",       IEEE80211_MSG_DOTH },
  83         { "inact",      IEEE80211_MSG_INACT },
  84         { "roam",       IEEE80211_MSG_ROAM }
  85 };
  86
  87 static u_int
  88 getflag(const char *name, int len)
  89 {
  90         int i;
  91
  92         for (i = 0; i < N(flags); i++)
  93                 if (strncasecmp(flags[i].name, name, len) == 0)
  94                         return flags[i].bit;
  95         return 0;
  96 }
  97
  98 static const char *
  99 getflagname(u_int flag)
 100 {
 101         int i;
 102
 103         for (i = 0; i < N(flags); i++)
 104                 if (flags[i].bit == flag)
 105                         return flags[i].name;
 106         return "???";
 107 }
 108
 109 static void
 110 usage(void)
 111 {
 112         int i;
 113
 114         fprintf(stderr, "usage: %s -i device [flags]\n", progname);
 115         fprintf(stderr, "where flags are:\n");
 116         for (i = 0; i < N(flags); i++)
 117                 printf("%s\n", flags[i].name);
 118         exit(-1);
 119 }
 120
 121 int
 122 main(int argc, char *argv[])
 123 {
 124         const char *ifname = NULL;
 125         const char *cp, *tp;
 126         const char *sep;
 127         int c, op, i, unit;
 128         u_int32_t debug, ndebug;
 129         size_t debuglen, parentlen;
 130         char oid[256], parent[256];
 131
 132         progname = argv[0];
 133         if (argc > 1) {
 134                 if (strcmp(argv[1], "-i") == 0) {
 135                         if (argc < 2)
 136                                 errx(1, "missing interface name for -i option");
 137                         ifname = argv[2];
 138                         argc -= 2, argv += 2;
 139                 }
 140         }
 141
 142         if (ifname == NULL)
 143                 usage();
 144
 145         for (unit = 0; unit < 10; unit++) {
 146                 snprintf(oid, sizeof(oid), "net.wlan.%d.%%parent", unit);
 147                 parentlen = sizeof(parent);
 148                 if (sysctlbyname(oid, parent, &parentlen, NULL, 0) >= 0 &&
 149                     strncmp(parent, ifname, parentlen) == 0)
 150                         break;
 151         }
 152         if (unit == 10)
 153                 errx(1, "%s: cannot locate wlan sysctl node.", ifname);
 154         snprintf(oid, sizeof(oid), "net.wlan.%d.debug", unit);
 155         debuglen = sizeof(debug);
 156         if (sysctlbyname(oid, &debug, &debuglen, NULL, 0) < 0)
 157                 err(1, "sysctl-get(%s)", oid);
 158         ndebug = debug;
 159         for (; argc > 1; argc--, argv++) {
 160                 cp = argv[1];
 161                 do {
 162                         u_int bit;
 163
 164                         if (*cp == '-') {
 165                                 cp++;
 166                                 op = -1;
 167                         } else if (*cp == '+') {
 168                                 cp++;
 169                                 op = 1;
 170                         } else
 171                                 op = 0;
 172                         for (tp = cp; *tp != '\0' && *tp != '+' && *tp != '-';)
 173                                 tp++;
 174                         bit = getflag(cp, tp-cp);
 175                         if (op < 0)
 176                                 ndebug &= ~bit;
 177                         else if (op > 0)
 178                                 ndebug |= bit;
 179                         else {
 180                                 if (bit == 0) {
 181                                         if (isdigit(*cp))
 182                                                 bit = strtoul(cp, NULL, 0);
 183                                         else
 184                                                 errx(1, "unknown flag %.*s",
 185                                                         tp-cp, cp);
 186                                 }
 187                                 ndebug = bit;
 188                         }
 189                 } while (*(cp = tp) != '\0');
 190         }
 191         if (debug != ndebug) {
 192                 printf("%s: 0x%x => ", oid, debug);
 193                 if (sysctlbyname(oid, NULL, NULL, &ndebug, sizeof(ndebug)) < 0)
 194                         err(1, "sysctl-set(%s)", oid);
 195                 printf("0x%x", ndebug);
 196                 debug = ndebug;
 197         } else
 198                 printf("%s: 0x%x", oid, debug);
 199         sep = "<";
 200         for (i = 0; i < N(flags); i++)
 201                 if (debug & flags[i].bit) {
 202                         printf("%s%s", sep, flags[i].name);
 203                         sep = ",";
 204                 }
 205         printf("%s\n", *sep != '<' ? ">" : "");
 206         return 0;
 207 }