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,
  13                       struct nl_msg *msg, int argc, char **argv,
  14                       enum id_input id)
  15 {
  16         char *end;
  17
  18         if (argc < 2)
  19                 return 1;
  20
  21         /* freq */
  22         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ,
  23                     strtoul(argv[0], &end, 10));
  24         if (*end != '\0')
  25                 return 1;
  26         argv++;
  27         argc--;
  28
  29         /* duration */
  30         NLA_PUT_U32(msg, NL80211_ATTR_DURATION,
  31                     strtoul(argv[0], &end, 10));
  32         if (*end != '\0')
  33                 return 1;
  34         argv++;
  35         argc--;
  36
  37         if (argc)
  38                 return 1;
  39
  40         return 0;
  41  nla_put_failure:
  42         return -ENOSPC;
  43 }
  44
  45 TOPLEVEL(offchannel, "<freq> <duration>", NL80211_CMD_REMAIN_ON_CHANNEL, 0,
  46          CIB_NETDEV, offchannel,
  47          "Leave operating channel and go to the given channel for a while.");