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
12static int iw_cqm_rssi(struct nl80211_state *state, struct nl_cb *cb,
13		       struct nl_msg *msg, int argc, char **argv,
14		       enum id_input id)
15{
16	struct nl_msg *cqm = NULL;
17	int thold = 0;
18	int hyst = 0;
19	int ret = -ENOSPC;
20
21	/* get the required args */
22	if (argc < 1 || argc > 2)
23		return 1;
24
25	if (strcmp(argv[0], "off")) {
26		thold = atoi(argv[0]);
27
28		if (thold == 0)
29			return -EINVAL;
30
31		if (argc == 2)
32			hyst = atoi(argv[1]);
33	}
34
35	/* connection quality monitor attributes */
36	cqm = nlmsg_alloc();
37
38	NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, thold);
39	NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hyst);
40
41	nla_put_nested(msg, NL80211_ATTR_CQM, cqm);
42	ret = 0;
43
44 nla_put_failure:
45	nlmsg_free(cqm);
46	return ret;
47}
48
49TOPLEVEL(cqm, "",
50	 0, 0, CIB_NETDEV, NULL,
51	 "Configure the WLAN connection quality monitor.\n");
52
53COMMAND(cqm, rssi, "<threshold|off> [<hysteresis>]",
54	NL80211_CMD_SET_CQM, 0, CIB_NETDEV, iw_cqm_rssi,
55	"Set connection quality monitor RSSI threshold.\n");
56