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         int err;
  20
  21         if (argc < 2)
  22                 return 1;
  23
  24         /* SSID */
  25         NLA_PUT(msg, NL80211_ATTR_SSID, strlen(argv[0]), argv[0]);
  26         argv++;
  27         argc--;
  28
  29         /* freq */
  30         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ,
  31                     strtoul(argv[0], &end, 10));
  32         if (*end != '\0')
  33                 return 1;
  34         argv++;
  35         argc--;
  36
  37         if (argc && strcmp(argv[0], "fixed-freq") == 0) {
  38                 NLA_PUT_FLAG(msg, NL80211_ATTR_FREQ_FIXED);
  39                 argv++;
  40                 argc--;
  41         }
  42
  43         if (argc) {
  44                 if (mac_addr_a2n(abssid, argv[0]) == 0) {
  45                         NLA_PUT(msg, NL80211_ATTR_MAC, 6, abssid);
  46                         argv++;
  47                         argc--;
  48                 }
  49         }
  50
  51         if (argc) {
  52                 if (strcmp(*argv, "key") != 0 && strcmp(*argv, "keys") != 0)
  53                         return 1;
  54
  55                 argv++;
  56                 argc--;
  57
  58                 err = parse_keys(msg, argv, argc);
  59                 if (err)
  60                         return err;
  61         }
  62
  63         return set_interface_up(state->ifname);
  64
  65  nla_put_failure:
  66         return -ENOSPC;
  67 }
  68
  69 static int leave_ibss(struct nl80211_state *state,
  70                       struct nl_cb *cb,
  71                       struct nl_msg *msg,
  72                       int argc, char **argv)
  73 {
  74         return 0;
  75 }
  76 COMMAND(ibss, leave, NULL,
  77         NL80211_CMD_LEAVE_IBSS, 0, CIB_NETDEV, leave_ibss,
  78         "Leave the current IBSS cell.");
  79 COMMAND(ibss, join, "<SSID> <freq in MHz> [fixed-freq] [<fixed bssid>] [key d:0:abcde]",
  80         NL80211_CMD_JOIN_IBSS, 0, CIB_NETDEV, join_ibss,
  81         "Join the IBSS cell with the given SSID, if it doesn't exist create\n"
  82         "it on the given frequency. When fixed frequency is requested, don't\n"
  83         "join/create a cell on a different frequency. When a fixed BSSID is\n"
  84         "requested use that BSSID and do not adopt another cell's BSSID even\n"
  85         "if it has higher TSF and the same SSID.");