offch.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 offchannel(struct nl80211_state *state, struct nl_cb *cb,
  13                       struct nl_msg *msg, int argc, char **argv,
  14                       enum id_input id)
  15 {
  16         char *end;
  17
  18         /* freq */
  19         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ,
  20                     strtoul(argv[0], &end, 10));
  21         if (*end != '\0')
  22                 return 1;
  23         argv++;
  24         argc--;
  25
  26         /* duration */
  27         NLA_PUT_U32(msg, NL80211_ATTR_DURATION,
  28                     strtoul(argv[0], &end, 10));
  29         if (*end != '\0')
  30                 return 1;
  31         argv++;
  32         argc--;
  33
  34         if (argc)
  35                 return 1;
  36
  37         return 0;
  38  nla_put_failure:
  39         return -ENOSPC;
  40 }
  41
  42 TOPLEVEL(offchannel, "<freq> <duration>", NL80211_CMD_REMAIN_ON_CHANNEL, 0,
  43          CIB_NETDEV, offchannel,
  44          "Leave operating channel and go to the given channel for a while.");