[thirdparty/iw.git] / phy.c

#include <stdbool.h>
#include <errno.h>
#include <net/if.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 handle_name(struct nl_cb *cb,
		       struct nl_msg *msg,
		       int argc, char **argv)
{
	if (argc != 1)
		return 1;

	NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, *argv);

	return 0;
 nla_put_failure:
	return -ENOBUFS;
}
COMMAND(set, name, "<new name>", NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_name);

static int handle_freqchan(struct nl_msg *msg, bool chan,
			   int argc, char **argv)
{
	static const struct {
		const char *name;
		unsigned int val;
	} htmap[] = {
		{ .name = "HT20", .val = NL80211_SEC_CHAN_DISABLED, },
		{ .name = "HT40+", .val = NL80211_SEC_CHAN_ABOVE, },
		{ .name = "HT40-", .val = NL80211_SEC_CHAN_BELOW, },
	};
	unsigned int htval = NL80211_SEC_CHAN_NO_HT;
	unsigned int freq;
	int i;

	if (!argc || argc > 2)
		return 1;

	if (argc == 2) {
		for (i = 0; i < ARRAY_SIZE(htmap); i++) {
			if (strcasecmp(htmap[i].name, argv[1]) == 0) {
				htval = htmap[i].val;
				break;
			}
		}
		if (htval == NL80211_SEC_CHAN_NO_HT)
			return 1;
	}

	freq = strtoul(argv[0], NULL, 10);
	if (chan)
		freq = ieee80211_channel_to_frequency(freq);

	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET, htval);

	return 0;
 nla_put_failure:
	return -ENOBUFS;
}

static int handle_freq(struct nl_cb *cb, struct nl_msg *msg,
		       int argc, char **argv)
{
	return handle_freqchan(msg, false, argc, argv);
}
COMMAND(set, freq, "<freq> [HT20|HT40+|HT40-]",
	NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_freq);
COMMAND(set, freq, "<freq> [HT20|HT40+|HT40-]",
	NL80211_CMD_SET_WIPHY, 0, CIB_NETDEV, handle_freq);

static int handle_chan(struct nl_cb *cb, struct nl_msg *msg,
		       int argc, char **argv)
{
	return handle_freqchan(msg, true, argc, argv);
}
COMMAND(set, channel, "<channel> [HT20|HT40+|HT40-]",
	NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_chan);
COMMAND(set, channel, "<channel> [HT20|HT40+|HT40-]",
	NL80211_CMD_SET_WIPHY, 0, CIB_NETDEV, handle_chan);
Commit	Line	Data
379f8397	1	#include <stdbool.h>
0f55e0b8	2	#include <errno.h>
0f55e0b8 JB	3	#include <net/if.h>
	4
	5	#include <netlink/genl/genl.h>
	6	#include <netlink/genl/family.h>
	7	#include <netlink/genl/ctrl.h>
	8	#include <netlink/msg.h>
	9	#include <netlink/attr.h>
	10
f408e01b	11	#include "nl80211.h"
0f55e0b8 JB	12	#include "iw.h"
0f55e0b8 JB	13
70391ccf	14	static int handle_name(struct nl_cb *cb,
0f55e0b8 JB	15	struct nl_msg *msg,
	16	int argc, char **argv)
	17	{
0f55e0b8	18	if (argc != 1)
5e75fd04	19	return 1;
0f55e0b8 JB	20
	21	NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, *argv);
	22
70391ccf	23	return 0;
0f55e0b8	24	nla_put_failure:
70391ccf	25	return -ENOBUFS;
0f55e0b8 JB	26	}
0f55e0b8 JB	27	COMMAND(set, name, "<new name>", NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_name);
b822cda9	28
379f8397 JB	29	static int handle_freqchan(struct nl_msg *msg, bool chan,
379f8397 JB	30	int argc, char **argv)
b822cda9 JB	31	{
	32	static const struct {
	33	const char *name;
	34	unsigned int val;
	35	} htmap[] = {
	36	{ .name = "HT20", .val = NL80211_SEC_CHAN_DISABLED, },
	37	{ .name = "HT40+", .val = NL80211_SEC_CHAN_ABOVE, },
	38	{ .name = "HT40-", .val = NL80211_SEC_CHAN_BELOW, },
	39	};
	40	unsigned int htval = NL80211_SEC_CHAN_NO_HT;
	41	unsigned int freq;
	42	int i;
	43
	44	if (!argc \|\| argc > 2)
	45	return 1;
	46
	47	if (argc == 2) {
7d736016	48	for (i = 0; i < ARRAY_SIZE(htmap); i++) {
b822cda9 JB	49	if (strcasecmp(htmap[i].name, argv[1]) == 0) {
	50	htval = htmap[i].val;
	51	break;
	52	}
	53	}
	54	if (htval == NL80211_SEC_CHAN_NO_HT)
	55	return 1;
	56	}
	57
	58	freq = strtoul(argv[0], NULL, 10);
379f8397 JB	59	if (chan)
379f8397 JB	60	freq = ieee80211_channel_to_frequency(freq);
b822cda9 JB	61
	62	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
	63	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET, htval);
	64
	65	return 0;
	66	nla_put_failure:
	67	return -ENOBUFS;
	68	}
379f8397 JB	69
	70	static int handle_freq(struct nl_cb cb, struct nl_msg msg,
	71	int argc, char **argv)
	72	{
	73	return handle_freqchan(msg, false, argc, argv);
	74	}
b822cda9 JB	75	COMMAND(set, freq, "<freq> [HT20\|HT40+\|HT40-]",
	76	NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_freq);
	77	COMMAND(set, freq, "<freq> [HT20\|HT40+\|HT40-]",
	78	NL80211_CMD_SET_WIPHY, 0, CIB_NETDEV, handle_freq);
379f8397 JB	79
	80	static int handle_chan(struct nl_cb cb, struct nl_msg msg,
	81	int argc, char **argv)
	82	{
	83	return handle_freqchan(msg, true, argc, argv);
	84	}
	85	COMMAND(set, channel, "<channel> [HT20\|HT40+\|HT40-]",
	86	NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_chan);
	87	COMMAND(set, channel, "<channel> [HT20\|HT40+\|HT40-]",
	88	NL80211_CMD_SET_WIPHY, 0, CIB_NETDEV, handle_chan);