ibss.c

   1 #include <errno.h>
   2
   3 #include <netlink/genl/genl.h>
   4 #include <netlink/genl/family.h>
   5 #include <netlink/genl/ctrl.h>
   6 #include <netlink/msg.h>
   7 #include <netlink/attr.h>
   8
   9 #include "nl80211.h"
  10 #include "iw.h"
  11
  12 static int join_ibss(struct nl80211_state *state,
  13                      struct nl_cb *cb,
  14                      struct nl_msg *msg,
  15                      int argc, char **argv)
  16 {
  17         char *end;
  18         unsigned char abssid[6];
  19
  20         if (argc < 2)
  21                 return 1;
  22
  23         /* SSID */
  24         NLA_PUT(msg, NL80211_ATTR_SSID, strlen(argv[0]), argv[0]);
  25         argv++;
  26         argc--;
  27
  28         /* freq */
  29         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ,
  30                     strtoul(argv[0], &end, 10));
  31         if (*end != '\0')
  32                 return 1;
  33         argv++;
  34         argc--;
  35
  36         if (argc && strcmp(argv[0], "fixed-freq") == 0) {
  37                 NLA_PUT_FLAG(msg, NL80211_ATTR_FREQ_FIXED);
  38                 argv++;
  39                 argc--;
  40         }
  41
  42         if (argc) {
  43                 if (mac_addr_a2n(abssid, argv[0]))
  44                         return 1;
  45                 NLA_PUT(msg, NL80211_ATTR_MAC, 6, abssid);
  46                 argv++;
  47                 argc--;
  48         }
  49
  50         if (argc)
  51                 return 1;
  52
  53         return 0;
  54  nla_put_failure:
  55         return -ENOSPC;
  56 }
  57
  58 static int leave_ibss(struct nl80211_state *state,
  59                       struct nl_cb *cb,
  60                       struct nl_msg *msg,
  61                       int argc, char **argv)
  62 {
  63         return 0;
  64 }
  65 COMMAND(ibss, leave, NULL,
  66         NL80211_CMD_LEAVE_IBSS, 0, CIB_NETDEV, leave_ibss,
  67         "Leave the current IBSS cell.");
  68 COMMAND(ibss, join, "<SSID> <freq in MHz> [fixed-freq] [<fixed bssid>]",
  69         NL80211_CMD_JOIN_IBSS, 0, CIB_NETDEV, join_ibss,
  70         "Join the IBSS cell with the given SSID, if it doesn't exist create\n"
  71         "it on the given frequency. When fixed frequency is requested, don't\n"
  72         "join/create a cell on a different frequency. When a fixed BSSID is\n"
  73         "requested use that BSSID and do not adopt another cell's BSSID even\n"
  74         "if it has higher TSF and the same SSID.");