net/kismet/patches/100-wrt54g_source.patch

   1 diff -urN kismet.old/kis_packsources.cc kismet.dev/kis_packsources.cc
   2 --- kismet.old/kis_packsources.cc       2005-08-16 03:22:51.000000000 +0200
   3 +++ kismet.dev/kis_packsources.cc       2005-08-23 00:59:04.465379568 +0200
   4 @@ -192,7 +192,7 @@
   5                                         chancontrol_wlanng_avs, 1);
   6      sourcetracker->RegisterPacketsource("wrt54g", 1, "na", 0,
   7                                          pcapsource_wrt54g_registrant,
   8 -                                        monitor_wrt54g, NULL, NULL, 0);
   9 +                                                                               monitor_wrt54g, unmonitor_wrt54g, chancontrol_wext, 0);
  10  #else
  11      REG_EMPTY_CARD(sourcetracker, "wlanng");
  12      REG_EMPTY_CARD(sourcetracker, "wlanng_avs");
  13 diff -urN kismet.old/packetsourcetracker.cc kismet.dev/packetsourcetracker.cc
  14 --- kismet.old/packetsourcetracker.cc   2005-08-16 03:22:51.000000000 +0200
  15 +++ kismet.dev/packetsourcetracker.cc   2005-08-23 00:59:39.969982048 +0200
  16 @@ -986,6 +986,7 @@
  17                      (meta_packsources[chanpak.meta_num]->device.c_str(),
  18                       chanpak.channel, errstr,
  19                       (void *) (meta_packsources[chanpak.meta_num]->capsource)) < 0) {
  20 +#if 0
  21
  22                                         meta_packsources[chanpak.meta_num]->consec_errors++;
  23
  24 @@ -1007,6 +1008,7 @@
  25                                                                                                                                          CHANFLAG_FATAL));
  26                                                 continue;
  27                                         }
  28 +#endif
  29                  } else {
  30                                         // Otherwise reset the error count
  31                                         meta_packsources[chanpak.meta_num]->consec_errors = 0;
  32 diff -urN kismet.old/pcapsource.cc kismet.dev/pcapsource.cc
  33 --- kismet.old/pcapsource.cc    2005-08-16 03:22:51.000000000 +0200
  34 +++ kismet.dev/pcapsource.cc    2005-08-23 01:03:45.652632608 +0200
  35 @@ -115,6 +115,53 @@
  36  u_char callback_data[MAX_PACKET_LEN];
  37
  38  // Open a source
  39 +int PcapSourceWrt54g::OpenSource() {
  40 +    channel = 0;
  41 +
  42 +    errstr[0] = '\0';
  43 +
  44 +    char *unconst = strdup("prism0");
  45 +
  46 +    pd = pcap_open_live(unconst, MAX_PACKET_LEN, 1, 1000, errstr);
  47 +
  48 +    #if defined (SYS_OPENBSD) || defined(SYS_NETBSD) && defined(HAVE_RADIOTAP)
  49 +    /* Request desired DLT on multi-DLT systems that default to EN10MB. We do this
  50 +       later anyway but doing it here ensures we have the desired DLT from the get go. */
  51 +     pcap_set_datalink(pd, DLT_IEEE802_11_RADIO);
  52 +    #endif
  53 +
  54 +    free(unconst);
  55 +
  56 +    if (strlen(errstr) > 0)
  57 +        return -1; // Error is already in errstr
  58 +
  59 +    paused = 0;
  60 +
  61 +    errstr[0] = '\0';
  62 +
  63 +    num_packets = 0;
  64 +
  65 +    if (DatalinkType() < 0)
  66 +        return -1;
  67 +
  68 +#ifdef HAVE_PCAP_NONBLOCK
  69 +    pcap_setnonblock(pd, 1, errstr);
  70 +#elif !defined(SYS_OPENBSD)
  71 +    // do something clever  (Thanks to Guy Harris for suggesting this).
  72 +    int save_mode = fcntl(pcap_get_selectable_fd(pd), F_GETFL, 0);
  73 +    if (fcntl(pcap_get_selectable_fd(pd), F_SETFL, save_mode | O_NONBLOCK) < 0) {
  74 +        snprintf(errstr, 1024, "fcntl failed, errno %d (%s)",
  75 +                 errno, strerror(errno));
  76 +    }
  77 +#endif
  78 +
  79 +    if (strlen(errstr) > 0)
  80 +        return -1; // Ditto
  81 +
  82 +    return 1;
  83 +}
  84 +
  85 +// Open a source
  86  int PcapSource::OpenSource() {
  87      channel = 0;
  88
  89 @@ -1928,63 +1975,32 @@
  90  int monitor_wrt54g(const char *in_dev, int initch, char *in_err, void **in_if,
  91                                    void *in_ext) {
  92      char cmdline[2048];
  93 -       int mode;
  94 -       int wlmode = 0;
  95 -
  96 -#ifdef HAVE_LINUX_WIRELESS
  97 -    vector<string> devbits = StrTokenize(in_dev, ":");
  98
  99 -    if (devbits.size() < 2) {
 100 -               snprintf(cmdline, 2048, "/usr/sbin/wl monitor 1");
 101 +               snprintf(cmdline, 2048, "/usr/sbin/iwpriv %s set_monitor 1", in_dev);
 102                 if (RunSysCmd(cmdline) < 0) {
 103 -                       snprintf(in_err, 1024, "Unable to set mode using 'wl monitor 1'.  Some "
 104 -                                        "custom firmware images require you to specify the origial "
 105 +                       snprintf(in_err, 1024, "Unable to set mode using 'iwpriv %s set_monitor 1'. "
 106 +                                        "Some custom firmware images require you to specify the origial "
 107                                          "device and a new dynamic device and use the iwconfig controls. "
 108                                          "see the README for how to configure your capture source.");
 109                         return -1;
 110                 }
 111 -    } else {
 112 -               // Get the mode ... If this doesn't work, try the old wl method.
 113 -               if (Iwconfig_Get_Mode(devbits[0].c_str(), in_err, &mode) < 0) {
 114 -                       fprintf(stderr, "WARNING:  Getting wireless mode via ioctls failed, "
 115 -                                       "defaulting to trying the 'wl' command.\n");
 116 -                       wlmode = 1;
 117 -               }
 118
 119 -               if (wlmode == 1) {
 120 -                       snprintf(cmdline, 2048, "/usr/sbin/wl monitor 1");
 121 -                       if (RunSysCmd(cmdline) < 0) {
 122 -                               snprintf(in_err, 1024, "Unable to execute '%s'", cmdline);
 123 -                               return -1;
 124 -                       }
 125 -               } else if (mode != LINUX_WLEXT_MONITOR) {
 126 -                       // Set it
 127 -                       if (Iwconfig_Set_Mode(devbits[0].c_str(), in_err,
 128 -                                                                 LINUX_WLEXT_MONITOR) < 0) {
 129 -                               snprintf(in_err, STATUS_MAX, "Unable to set iwconfig monitor "
 130 -                                                "mode.  If you are using an older wrt54g, try specifying "
 131 -                                                "only the ethernet device, not ethX:prismX");
 132 -                               return -1;
 133 -                       }
 134 +       return 1;
 135 +}
 136 +
 137 +
 138 +int unmonitor_wrt54g(const char *in_dev, int initch, char *in_err, void **in_if,
 139 +                                  void *in_ext) {
 140 +    char cmdline[2048];
 141 +
 142 +               snprintf(cmdline, 2048, "/usr/sbin/iwpriv %s set_monitor 0", in_dev);
 143 +               if (RunSysCmd(cmdline) < 0) {
 144 +                       snprintf(in_err, 1024, "Unable to set mode using 'iwpriv %s set_monitor 0'. "
 145 +                                        "Some custom firmware images require you to specify the origial "
 146 +                                        "device and a new dynamic device and use the iwconfig controls. "
 147 +                                        "see the README for how to configure your capture source.");
 148 +                       return -1;
 149                 }
 150 -       }
 151 -#else
 152 -       snprintf(cmdline, 2048, "/usr/sbin/wl monitor 1");
 153 -       if (RunSysCmd(cmdline) < 0) {
 154 -               snprintf(in_err, 1024, "Unable to set mode using 'wl monitor 1'.  Some "
 155 -                                "custom firmware images require you to specify the origial "
 156 -                                "device and a new dynamic device and use the iwconfig controls. "
 157 -                                "see the README for how to configure your capture source. "
 158 -                                "Support for wireless extensions was not compiled in, so more "
 159 -                                "advanced modes of setting monitor mode are not available.");
 160 -               return -1;
 161 -       }
 162 -       fprintf(stderr, "WARNING:  Support for wireless extensions was not compiled "
 163 -                       "into this binary.  Using the iw* tools to set monitor mode will not "
 164 -                       "be available.  This may cause opening the source to fail on some "
 165 -                       "firmware versions.  To fix this, make sure wireless extensions are "
 166 -                       "available and found by the configure script when building Kismet.");
 167 -#endif
 168
 169         return 1;
 170  }
 171 diff -urN kismet.old/pcapsource.h kismet.dev/pcapsource.h
 172 --- kismet.old/pcapsource.h     2005-08-16 03:22:51.000000000 +0200
 173 +++ kismet.dev/pcapsource.h     2005-08-23 01:04:26.057490136 +0200
 174 @@ -265,6 +265,7 @@
 175      PcapSourceWrt54g(string in_name, string in_dev) : PcapSource(in_name, in_dev) {
 176          fcsbytes = 4;
 177      }
 178 +       int OpenSource();
 179      int FetchPacket(kis_packet *packet, uint8_t *data, uint8_t *moddata);
 180  protected:
 181      carrier_type IEEE80211Carrier();
 182 @@ -412,6 +413,7 @@
 183  int monitor_wlanng_avs(const char *in_dev, int initch, char *in_err, void **in_if, void *in_ext);
 184  // linksys wrt54g monitoring
 185  int monitor_wrt54g(const char *in_dev, int initch, char *in_err, void **in_if, void *in_ext);
 186 +int unmonitor_wrt54g(const char *in_dev, int initch, char *in_err, void **in_if, void *in_ext);
 187  #endif
 188
 189  // This should be expanded to handle BSD...