nexmon – Rev 1

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#include <errno.h>

#include <netlink/genl/genl.h>
#include <netlink/genl/family.h>
#include <netlink/genl/ctrl.h>
#include <netlink/msg.h>
#include <netlink/attr.h>

#include "nl80211.h"
#include "iw.h"

static int offchannel(struct nl80211_state *state, struct nl_cb *cb,
                      struct nl_msg *msg, int argc, char **argv,
                      enum id_input id)
{
        char *end;

        /* freq */
        NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ,
                    strtoul(argv[0], &end, 10));
        if (*end != '\0')
                return 1;
        argv++;
        argc--;

        /* duration */
        NLA_PUT_U32(msg, NL80211_ATTR_DURATION,
                    strtoul(argv[0], &end, 10));
        if (*end != '\0')
                return 1;
        argv++;
        argc--;

        if (argc)
                return 1;

        return 0;
 nla_put_failure:
        return -ENOSPC;
}

TOPLEVEL(offchannel, "<freq> <duration>", NL80211_CMD_REMAIN_ON_CHANNEL, 0,
         CIB_NETDEV, offchannel,
         "Leave operating channel and go to the given channel for a while.");