[thirdparty/iw.git] / interface.c

#include <errno.h>
#include <string.h>
#include <stdbool.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"

#define VALID_FLAGS	"none:     no special flags\n"\
			"fcsfail:  show frames with FCS errors\n"\
			"control:  show control frames\n"\
			"otherbss: show frames from other BSSes\n"\
			"cook:     use cooked mode\n"\
			"active:   use active mode (ACK incoming unicast packets)\n"\
			"mumimo-groupid <GROUP_ID>: use MUMIMO according to a group id\n"\
			"mumimo-follow-mac <MAC_ADDRESS>: use MUMIMO according to a MAC address"

SECTION(interface);

static char *mntr_flags[NL80211_MNTR_FLAG_MAX + 1] = {
	"none",
	"fcsfail",
	"plcpfail",
	"control",
	"otherbss",
	"cook",
	"active",
};

static int parse_mumimo_options(int *_argc, char ***_argv, struct nl_msg *msg)
{
	uint8_t mumimo_group[VHT_MUMIMO_GROUP_LEN];
	unsigned char mac_addr[ETH_ALEN];
	char **argv = *_argv;
	int argc = *_argc;
	int i;
	unsigned int val;

	if (strcmp(*argv, "mumimo-groupid") == 0) {
		argc--;
		argv++;
		if (!argc || strlen(*argv) != VHT_MUMIMO_GROUP_LEN*2) {
			fprintf(stderr, "Invalid groupID: %s\n", *argv);
			return 1;
		}

		for (i = 0; i < VHT_MUMIMO_GROUP_LEN; i++) {
			if (sscanf((*argv) + i*2, "%2x", &val) != 1) {
				fprintf(stderr, "Failed reading groupID\n");
				return 1;
			}
			mumimo_group[i] = val;
		}

		NLA_PUT(msg,
			NL80211_ATTR_MU_MIMO_GROUP_DATA,
			VHT_MUMIMO_GROUP_LEN,
			mumimo_group);
		argc--;
		argv++;
	} else if (strcmp(*argv, "mumimo-follow-mac") == 0) {
		argc--;
		argv++;
		if (!argc || mac_addr_a2n(mac_addr, *argv)) {
			fprintf(stderr, "Invalid MAC address\n");
			return 1;
		}
		NLA_PUT(msg, NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR,
			ETH_ALEN, mac_addr);
		argc--;
		argv++;
	}
 nla_put_failure:
	*_argc = argc;
	*_argv = argv;
	return 0;
}

static int parse_mntr_flags(int *_argc, char ***_argv,
			    struct nl_msg *msg)
{
	struct nl_msg *flags;
	int err = -ENOBUFS;
	enum nl80211_mntr_flags flag;
	int argc = *_argc;
	char **argv = *_argv;

	flags = nlmsg_alloc();
	if (!flags)
		return -ENOMEM;

	while (argc) {
		int ok = 0;

		/* parse MU-MIMO options */
		err = parse_mumimo_options(&argc, &argv, msg);
		if (err)
			goto out;
		else if (!argc)
			break;

		/* parse monitor flags */
		for (flag = __NL80211_MNTR_FLAG_INVALID;
		     flag <= NL80211_MNTR_FLAG_MAX; flag++) {
			if (strcmp(*argv, mntr_flags[flag]) == 0) {
				ok = 1;
				/*
				 * This shouldn't be adding "flag" if that is
				 * zero, but due to a problem in the kernel's
				 * nl80211 code (using NLA_NESTED policy) it
				 * will reject an empty nested attribute but
				 * not one that contains an invalid attribute
				 */
				NLA_PUT_FLAG(flags, flag);
				break;
			}
		}
		if (!ok) {
			err = -EINVAL;
			goto out;
		}
		argc--;
		argv++;
	}

	nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
	err = 0;
 nla_put_failure:
 out:
	nlmsg_free(flags);

	*_argc = argc;
	*_argv = argv;

	return err;
}

/* for help */
#define IFACE_TYPES "Valid interface types are: managed, ibss, monitor, mesh, wds."

/* return 0 if ok, internal error otherwise */
static int get_if_type(int *argc, char ***argv, enum nl80211_iftype *type,
		       bool need_type)
{
	char *tpstr;

	if (*argc < 1 + !!need_type)
		return 1;

	if (need_type && strcmp((*argv)[0], "type"))
		return 1;

	tpstr = (*argv)[!!need_type];
	*argc -= 1 + !!need_type;
	*argv += 1 + !!need_type;

	if (strcmp(tpstr, "adhoc") == 0 ||
	    strcmp(tpstr, "ibss") == 0) {
		*type = NL80211_IFTYPE_ADHOC;
		return 0;
	} else if (strcmp(tpstr, "ocb") == 0) {
		*type = NL80211_IFTYPE_OCB;
		return 0;
	} else if (strcmp(tpstr, "monitor") == 0) {
		*type = NL80211_IFTYPE_MONITOR;
		return 0;
	} else if (strcmp(tpstr, "master") == 0 ||
		   strcmp(tpstr, "ap") == 0) {
		*type = NL80211_IFTYPE_UNSPECIFIED;
		fprintf(stderr, "You need to run a management daemon, e.g. hostapd,\n");
		fprintf(stderr, "see http://wireless.kernel.org/en/users/Documentation/hostapd\n");
		fprintf(stderr, "for more information on how to do that.\n");
		return 2;
	} else if (strcmp(tpstr, "__ap") == 0) {
		*type = NL80211_IFTYPE_AP;
		return 0;
	} else if (strcmp(tpstr, "__ap_vlan") == 0) {
		*type = NL80211_IFTYPE_AP_VLAN;
		return 0;
	} else if (strcmp(tpstr, "wds") == 0) {
		*type = NL80211_IFTYPE_WDS;
		return 0;
	} else if (strcmp(tpstr, "managed") == 0 ||
		   strcmp(tpstr, "mgd") == 0 ||
		   strcmp(tpstr, "station") == 0) {
		*type = NL80211_IFTYPE_STATION;
		return 0;
	} else if (strcmp(tpstr, "mp") == 0 ||
		   strcmp(tpstr, "mesh") == 0) {
		*type = NL80211_IFTYPE_MESH_POINT;
		return 0;
	} else if (strcmp(tpstr, "__p2pcl") == 0) {
		*type = NL80211_IFTYPE_P2P_CLIENT;
		return 0;
	} else if (strcmp(tpstr, "__p2pdev") == 0) {
		*type = NL80211_IFTYPE_P2P_DEVICE;
		return 0;
	} else if (strcmp(tpstr, "__p2pgo") == 0) {
		*type = NL80211_IFTYPE_P2P_GO;
		return 0;
	} else if (strcmp(tpstr, "__nan") == 0) {
		*type = NL80211_IFTYPE_NAN;
		return 0;
	}

	fprintf(stderr, "invalid interface type %s\n", tpstr);
	return 2;
}

static int parse_4addr_flag(const char *value, struct nl_msg *msg)
{
	if (strcmp(value, "on") == 0)
		NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, 1);
	else if (strcmp(value, "off") == 0)
		NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, 0);
	else
		return 1;
	return 0;

nla_put_failure:
	return 1;
}

static int handle_interface_add(struct nl80211_state *state,
				struct nl_msg *msg,
				int argc, char **argv,
				enum id_input id)
{
	char *name;
	char *mesh_id = NULL;
	enum nl80211_iftype type;
	int tpset;
	unsigned char mac_addr[ETH_ALEN];
	int found_mac = 0;

	if (argc < 1)
		return 1;

	name = argv[0];
	argc--;
	argv++;

	tpset = get_if_type(&argc, &argv, &type, true);
	if (tpset)
		return tpset;

try_another:
	if (argc) {
		if (strcmp(argv[0], "mesh_id") == 0) {
			argc--;
			argv++;

			if (!argc)
				return 1;
			mesh_id = argv[0];
			argc--;
			argv++;
		} else if (strcmp(argv[0], "addr") == 0) {
			argc--;
			argv++;
			if (mac_addr_a2n(mac_addr, argv[0])) {
				fprintf(stderr, "Invalid MAC address\n");
				return 2;
			}
			argc--;
			argv++;
			found_mac = 1;
			goto try_another;
		} else if (strcmp(argv[0], "4addr") == 0) {
			argc--;
			argv++;
			if (parse_4addr_flag(argv[0], msg)) {
				fprintf(stderr, "4addr error\n");
				return 2;
			}
			argc--;
			argv++;
		} else if (strcmp(argv[0], "flags") == 0) {
			argc--;
			argv++;
			if (parse_mntr_flags(&argc, &argv, msg)) {
				fprintf(stderr, "flags error\n");
				return 2;
			}
		} else {
			return 1;
		}
	}

	if (argc)
		return 1;

	NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, name);
	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, type);
	if (mesh_id)
		NLA_PUT(msg, NL80211_ATTR_MESH_ID, strlen(mesh_id), mesh_id);
	if (found_mac)
		NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);

	return 0;
 nla_put_failure:
	return -ENOBUFS;
}
COMMAND(interface, add, "<name> type <type> [mesh_id <meshid>] [4addr on|off] [flags <flag>*] [addr <mac-addr>]",
	NL80211_CMD_NEW_INTERFACE, 0, CIB_PHY, handle_interface_add,
	"Add a new virtual interface with the given configuration.\n"
	IFACE_TYPES "\n\n"
	"The flags are only used for monitor interfaces, valid flags are:\n"
	VALID_FLAGS "\n\n"
	"The mesh_id is used only for mesh mode.");
COMMAND(interface, add, "<name> type <type> [mesh_id <meshid>] [4addr on|off] [flags <flag>*] [addr <mac-addr>]",
	NL80211_CMD_NEW_INTERFACE, 0, CIB_NETDEV, handle_interface_add, NULL);

static int handle_interface_del(struct nl80211_state *state,
				struct nl_msg *msg,
				int argc, char **argv,
				enum id_input id)
{
	return 0;
}
TOPLEVEL(del, NULL, NL80211_CMD_DEL_INTERFACE, 0, CIB_NETDEV, handle_interface_del,
	 "Remove this virtual interface");
HIDDEN(interface, del, NULL, NL80211_CMD_DEL_INTERFACE, 0, CIB_NETDEV, handle_interface_del);

static char *channel_type_name(enum nl80211_channel_type channel_type)
{
	switch (channel_type) {
	case NL80211_CHAN_NO_HT:
		return "NO HT";
	case NL80211_CHAN_HT20:
		return "HT20";
	case NL80211_CHAN_HT40MINUS:
		return "HT40-";
	case NL80211_CHAN_HT40PLUS:
		return "HT40+";
	default:
		return "unknown";
	}
}

char *channel_width_name(enum nl80211_chan_width width)
{
	switch (width) {
	case NL80211_CHAN_WIDTH_20_NOHT:
		return "20 MHz (no HT)";
	case NL80211_CHAN_WIDTH_20:
		return "20 MHz";
	case NL80211_CHAN_WIDTH_40:
		return "40 MHz";
	case NL80211_CHAN_WIDTH_80:
		return "80 MHz";
	case NL80211_CHAN_WIDTH_80P80:
		return "80+80 MHz";
	case NL80211_CHAN_WIDTH_160:
		return "160 MHz";
	case NL80211_CHAN_WIDTH_5:
		return "5 MHz";
	case NL80211_CHAN_WIDTH_10:
		return "10 MHz";
	default:
		return "unknown";
	}
}

static int print_iface_handler(struct nl_msg *msg, void *arg)
{
	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
	struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
	unsigned int *wiphy = arg;
	const char *indent = "";

	nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
		  genlmsg_attrlen(gnlh, 0), NULL);

	if (wiphy && tb_msg[NL80211_ATTR_WIPHY]) {
		unsigned int thiswiphy = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY]);
		indent = "\t";
		if (*wiphy != thiswiphy)
			printf("phy#%d\n", thiswiphy);
		*wiphy = thiswiphy;
	}

	if (tb_msg[NL80211_ATTR_IFNAME])
		printf("%sInterface %s\n", indent, nla_get_string(tb_msg[NL80211_ATTR_IFNAME]));
	else
		printf("%sUnnamed/non-netdev interface\n", indent);
	if (tb_msg[NL80211_ATTR_IFINDEX])
		printf("%s\tifindex %d\n", indent, nla_get_u32(tb_msg[NL80211_ATTR_IFINDEX]));
	if (tb_msg[NL80211_ATTR_WDEV])
		printf("%s\twdev 0x%llx\n", indent,
		       (unsigned long long)nla_get_u64(tb_msg[NL80211_ATTR_WDEV]));
	if (tb_msg[NL80211_ATTR_MAC]) {
		char mac_addr[20];
		mac_addr_n2a(mac_addr, nla_data(tb_msg[NL80211_ATTR_MAC]));
		printf("%s\taddr %s\n", indent, mac_addr);
	}
	if (tb_msg[NL80211_ATTR_SSID]) {
		printf("%s\tssid ", indent);
		print_ssid_escaped(nla_len(tb_msg[NL80211_ATTR_SSID]),
				   nla_data(tb_msg[NL80211_ATTR_SSID]));
		printf("\n");
	}
	if (tb_msg[NL80211_ATTR_IFTYPE])
		printf("%s\ttype %s\n", indent, iftype_name(nla_get_u32(tb_msg[NL80211_ATTR_IFTYPE])));
	if (!wiphy && tb_msg[NL80211_ATTR_WIPHY])
		printf("%s\twiphy %d\n", indent, nla_get_u32(tb_msg[NL80211_ATTR_WIPHY]));
	if (tb_msg[NL80211_ATTR_WIPHY_FREQ]) {
		uint32_t freq = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_FREQ]);

		printf("%s\tchannel %d (%d MHz)", indent,
		       ieee80211_frequency_to_channel(freq), freq);

		if (tb_msg[NL80211_ATTR_CHANNEL_WIDTH]) {
			printf(", width: %s",
				channel_width_name(nla_get_u32(tb_msg[NL80211_ATTR_CHANNEL_WIDTH])));
			if (tb_msg[NL80211_ATTR_CENTER_FREQ1])
				printf(", center1: %d MHz",
					nla_get_u32(tb_msg[NL80211_ATTR_CENTER_FREQ1]));
			if (tb_msg[NL80211_ATTR_CENTER_FREQ2])
				printf(", center2: %d MHz",
					nla_get_u32(tb_msg[NL80211_ATTR_CENTER_FREQ2]));
		} else if (tb_msg[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
			enum nl80211_channel_type channel_type;

			channel_type = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
			printf(" %s", channel_type_name(channel_type));
		}

		printf("\n");
	}

	if (tb_msg[NL80211_ATTR_WIPHY_TX_POWER_LEVEL]) {
		uint32_t txp = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_TX_POWER_LEVEL]);

		printf("%s\ttxpower %d.%.2d dBm\n",
		       indent, txp / 100, txp % 100);
	}

	return NL_SKIP;
}

static int handle_interface_info(struct nl80211_state *state,
				 struct nl_msg *msg,
				 int argc, char **argv,
				 enum id_input id)
{
	register_handler(print_iface_handler, NULL);
	return 0;
}
TOPLEVEL(info, NULL, NL80211_CMD_GET_INTERFACE, 0, CIB_NETDEV, handle_interface_info,
	 "Show information for this interface.");

static int handle_interface_set(struct nl80211_state *state,
				struct nl_msg *msg,
				int argc, char **argv,
				enum id_input id)
{
	if (!argc)
		return 1;

	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_MONITOR);

	switch (parse_mntr_flags(&argc, &argv, msg)) {
	case 0:
		return 0;
	case 1:
		return 1;
	case -ENOMEM:
		fprintf(stderr, "failed to allocate flags\n");
		return 2;
	case -EINVAL:
		fprintf(stderr, "unknown flag %s\n", *argv);
		return 2;
	default:
		return 2;
	}
 nla_put_failure:
	return -ENOBUFS;
}
COMMAND(set, monitor, "<flag>*",
	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_set,
	"Set monitor flags. Valid flags are:\n"
	VALID_FLAGS);

static int handle_interface_meshid(struct nl80211_state *state,
				   struct nl_msg *msg,
				   int argc, char **argv,
				   enum id_input id)
{
	char *mesh_id = NULL;

	if (argc != 1)
		return 1;

	mesh_id = argv[0];

	NLA_PUT(msg, NL80211_ATTR_MESH_ID, strlen(mesh_id), mesh_id);

	return 0;
 nla_put_failure:
	return -ENOBUFS;
}
COMMAND(set, meshid, "<meshid>",
	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_meshid, NULL);

static unsigned int dev_dump_wiphy;

static int handle_dev_dump(struct nl80211_state *state,
			   struct nl_msg *msg,
			   int argc, char **argv,
			   enum id_input id)
{
	dev_dump_wiphy = -1;
	register_handler(print_iface_handler, &dev_dump_wiphy);
	return 0;
}
TOPLEVEL(dev, NULL, NL80211_CMD_GET_INTERFACE, NLM_F_DUMP, CIB_NONE, handle_dev_dump,
	 "List all network interfaces for wireless hardware.");

static int handle_interface_type(struct nl80211_state *state,
				 struct nl_msg *msg,
				 int argc, char **argv,
				 enum id_input id)
{
	enum nl80211_iftype type;
	int tpset;

	tpset = get_if_type(&argc, &argv, &type, false);
	if (tpset)
		return tpset;

	if (argc)
		return 1;

	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, type);

	return 0;
 nla_put_failure:
	return -ENOBUFS;
}
COMMAND(set, type, "<type>",
	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_type,
	"Set interface type/mode.\n"
	IFACE_TYPES);

static int handle_interface_4addr(struct nl80211_state *state,
				  struct nl_msg *msg,
				  int argc, char **argv,
				  enum id_input id)
{
	if (argc != 1)
		return 1;
	return parse_4addr_flag(argv[0], msg);
}
COMMAND(set, 4addr, "<on|off>",
	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_4addr,
	"Set interface 4addr (WDS) mode.");

static int handle_interface_noack_map(struct nl80211_state *state,
				      struct nl_msg *msg,
				      int argc, char **argv,
				      enum id_input id)
{
	uint16_t noack_map;
	char *end;

	if (argc != 1)
		return 1;

	noack_map = strtoul(argv[0], &end, 16);
	if (*end)
		return 1;

	NLA_PUT_U16(msg, NL80211_ATTR_NOACK_MAP, noack_map);

	return 0;
 nla_put_failure:
	return -ENOBUFS;

}
COMMAND(set, noack_map, "<map>",
	NL80211_CMD_SET_NOACK_MAP, 0, CIB_NETDEV, handle_interface_noack_map,
	"Set the NoAck map for the TIDs. (0x0009 = BE, 0x0006 = BK, 0x0030 = VI, 0x00C0 = VO)");


static int handle_interface_wds_peer(struct nl80211_state *state,
				     struct nl_msg *msg,
				     int argc, char **argv,
				     enum id_input id)
{
	unsigned char mac_addr[ETH_ALEN];

	if (argc < 1)
		return 1;

	if (mac_addr_a2n(mac_addr, argv[0])) {
		fprintf(stderr, "Invalid MAC address\n");
		return 2;
	}

	argc--;
	argv++;

	if (argc)
		return 1;

	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);

	return 0;
 nla_put_failure:
	return -ENOBUFS;
}
COMMAND(set, peer, "<MAC address>",
	NL80211_CMD_SET_WDS_PEER, 0, CIB_NETDEV, handle_interface_wds_peer,
	"Set interface WDS peer.");

static int set_mcast_rate(struct nl80211_state *state,
			  struct nl_msg *msg,
			  int argc, char **argv,
			  enum id_input id)
{
	float rate;
	char *end;

	if (argc != 1)
		return 1;

	rate = strtod(argv[0], &end);
	if (*end != '\0')
		return 1;

	NLA_PUT_U32(msg, NL80211_ATTR_MCAST_RATE, (int)(rate * 10));

	return 0;
nla_put_failure:
	return -ENOBUFS;
}

COMMAND(set, mcast_rate, "<rate in Mbps>",
	NL80211_CMD_SET_MCAST_RATE, 0, CIB_NETDEV, set_mcast_rate,
	"Set the multicast bitrate.");
Commit	Line	Data
45c7212c	1	#include <errno.h>
d5ac8ad3	2	#include <string.h>
d17fe27e	3	#include <stdbool.h>
2ef1be68	4
45c7212c JB	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>
45c7212c	10
f408e01b	11	#include "nl80211.h"
45c7212c JB	12	#include "iw.h"
45c7212c JB	13
1ae3d621 JB	14	#define VALID_FLAGS "none: no special flags\n"\
	15	"fcsfail: show frames with FCS errors\n"\
	16	"control: show control frames\n"\
	17	"otherbss: show frames from other BSSes\n"\
068ee232	18	"cook: use cooked mode\n"\
386bacb2 AE	19	"active: use active mode (ACK incoming unicast packets)\n"\
	20	"mumimo-groupid <GROUP_ID>: use MUMIMO according to a group id\n"\
	21	"mumimo-follow-mac <MAC_ADDRESS>: use MUMIMO according to a MAC address"
1ae3d621	22
4698bfc2 JB	23	SECTION(interface);
4698bfc2 JB	24
cd293761	25	static char *mntr_flags[NL80211_MNTR_FLAG_MAX + 1] = {
dd65496b	26	"none",
cd293761 JB	27	"fcsfail",
	28	"plcpfail",
	29	"control",
	30	"otherbss",
	31	"cook",
068ee232	32	"active",
cd293761 JB	33	};
cd293761 JB	34
386bacb2 AE	35	static int parse_mumimo_options(int _argc, char *_argv, struct nl_msg msg)
	36	{
	37	uint8_t mumimo_group[VHT_MUMIMO_GROUP_LEN];
	38	unsigned char mac_addr[ETH_ALEN];
	39	char *argv = _argv;
	40	int argc = *_argc;
	41	int i;
	42	unsigned int val;
	43
	44	if (strcmp(*argv, "mumimo-groupid") == 0) {
	45	argc--;
	46	argv++;
	47	if (!argc \|\| strlen(argv) != VHT_MUMIMO_GROUP_LEN2) {
	48	fprintf(stderr, "Invalid groupID: %s\n", *argv);
	49	return 1;
	50	}
	51
	52	for (i = 0; i < VHT_MUMIMO_GROUP_LEN; i++) {
	53	if (sscanf((argv) + i2, "%2x", &val) != 1) {
	54	fprintf(stderr, "Failed reading groupID\n");
	55	return 1;
	56	}
	57	mumimo_group[i] = val;
	58	}
	59
	60	NLA_PUT(msg,
	61	NL80211_ATTR_MU_MIMO_GROUP_DATA,
	62	VHT_MUMIMO_GROUP_LEN,
	63	mumimo_group);
	64	argc--;
	65	argv++;
	66	} else if (strcmp(*argv, "mumimo-follow-mac") == 0) {
	67	argc--;
	68	argv++;
	69	if (!argc \|\| mac_addr_a2n(mac_addr, *argv)) {
	70	fprintf(stderr, "Invalid MAC address\n");
	71	return 1;
	72	}
	73	NLA_PUT(msg, NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR,
	74	ETH_ALEN, mac_addr);
	75	argc--;
	76	argv++;
	77	}
	78	nla_put_failure:
	79	*_argc = argc;
	80	*_argv = argv;
	81	return 0;
	82	}
	83
dd65496b JB	84	static int parse_mntr_flags(int _argc, char **_argv,
	85	struct nl_msg *msg)
	86	{
	87	struct nl_msg *flags;
	88	int err = -ENOBUFS;
	89	enum nl80211_mntr_flags flag;
	90	int argc = *_argc;
	91	char *argv = _argv;
	92
	93	flags = nlmsg_alloc();
	94	if (!flags)
	95	return -ENOMEM;
	96
	97	while (argc) {
	98	int ok = 0;
386bacb2 AE	99
	100	/* parse MU-MIMO options */
	101	err = parse_mumimo_options(&argc, &argv, msg);
	102	if (err)
	103	goto out;
	104	else if (!argc)
	105	break;
	106
	107	/* parse monitor flags */
dd65496b	108	for (flag = __NL80211_MNTR_FLAG_INVALID;
e14cc99e	109	flag <= NL80211_MNTR_FLAG_MAX; flag++) {
dd65496b JB	110	if (strcmp(*argv, mntr_flags[flag]) == 0) {
dd65496b JB	111	ok = 1;
4a3bf753 JB	112	/*
	113	* This shouldn't be adding "flag" if that is
	114	* zero, but due to a problem in the kernel's
	115	* nl80211 code (using NLA_NESTED policy) it
	116	* will reject an empty nested attribute but
	117	* not one that contains an invalid attribute
	118	*/
dd65496b JB	119	NLA_PUT_FLAG(flags, flag);
	120	break;
	121	}
	122	}
	123	if (!ok) {
	124	err = -EINVAL;
	125	goto out;
	126	}
	127	argc--;
	128	argv++;
	129	}
	130
	131	nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
	132	err = 0;
	133	nla_put_failure:
	134	out:
	135	nlmsg_free(flags);
	136
	137	*_argc = argc;
	138	*_argv = argv;
	139
	140	return err;
	141	}
	142
1ae3d621 JB	143	/* for help */
	144	#define IFACE_TYPES "Valid interface types are: managed, ibss, monitor, mesh, wds."
	145
d17fe27e JB	146	/* return 0 if ok, internal error otherwise */
	147	static int get_if_type(int argc, char *argv, enum nl80211_iftype type,
	148	bool need_type)
45c7212c JB	149	{
	150	char *tpstr;
	151
d17fe27e JB	152	if (*argc < 1 + !!need_type)
d17fe27e JB	153	return 1;
45c7212c	154
d17fe27e JB	155	if (need_type && strcmp((*argv)[0], "type"))
d17fe27e JB	156	return 1;
45c7212c	157
d17fe27e JB	158	tpstr = (*argv)[!!need_type];
	159	*argc -= 1 + !!need_type;
	160	*argv += 1 + !!need_type;
45c7212c JB	161
	162	if (strcmp(tpstr, "adhoc") == 0 \|\|
	163	strcmp(tpstr, "ibss") == 0) {
	164	*type = NL80211_IFTYPE_ADHOC;
d17fe27e	165	return 0;
3955e524 RL	166	} else if (strcmp(tpstr, "ocb") == 0) {
	167	*type = NL80211_IFTYPE_OCB;
	168	return 0;
45c7212c JB	169	} else if (strcmp(tpstr, "monitor") == 0) {
45c7212c JB	170	*type = NL80211_IFTYPE_MONITOR;
d17fe27e	171	return 0;
e08b5488 JB	172	} else if (strcmp(tpstr, "master") == 0 \|\|
e08b5488 JB	173	strcmp(tpstr, "ap") == 0) {
c1d44a6c	174	*type = NL80211_IFTYPE_UNSPECIFIED;
e08b5488 JB	175	fprintf(stderr, "You need to run a management daemon, e.g. hostapd,\n");
	176	fprintf(stderr, "see http://wireless.kernel.org/en/users/Documentation/hostapd\n");
	177	fprintf(stderr, "for more information on how to do that.\n");
c1d44a6c	178	return 2;
4d3a72da	179	} else if (strcmp(tpstr, "__ap") == 0) {
45c7212c	180	*type = NL80211_IFTYPE_AP;
d17fe27e	181	return 0;
4d3a72da	182	} else if (strcmp(tpstr, "__ap_vlan") == 0) {
45c7212c	183	*type = NL80211_IFTYPE_AP_VLAN;
d17fe27e	184	return 0;
45c7212c JB	185	} else if (strcmp(tpstr, "wds") == 0) {
45c7212c JB	186	*type = NL80211_IFTYPE_WDS;
d17fe27e	187	return 0;
a65df165 JB	188	} else if (strcmp(tpstr, "managed") == 0 \|\|
	189	strcmp(tpstr, "mgd") == 0 \|\|
	190	strcmp(tpstr, "station") == 0) {
45c7212c	191	*type = NL80211_IFTYPE_STATION;
d17fe27e	192	return 0;
3d1e8704	193	} else if (strcmp(tpstr, "mp") == 0 \|\|
a65df165	194	strcmp(tpstr, "mesh") == 0) {
3d1e8704	195	*type = NL80211_IFTYPE_MESH_POINT;
d17fe27e	196	return 0;
a4464243 JB	197	} else if (strcmp(tpstr, "__p2pcl") == 0) {
	198	*type = NL80211_IFTYPE_P2P_CLIENT;
	199	return 0;
8d5d7ba7 JB	200	} else if (strcmp(tpstr, "__p2pdev") == 0) {
	201	*type = NL80211_IFTYPE_P2P_DEVICE;
	202	return 0;
a4464243 JB	203	} else if (strcmp(tpstr, "__p2pgo") == 0) {
	204	*type = NL80211_IFTYPE_P2P_GO;
	205	return 0;
ed9b77ec AO	206	} else if (strcmp(tpstr, "__nan") == 0) {
	207	*type = NL80211_IFTYPE_NAN;
	208	return 0;
45c7212c JB	209	}
45c7212c JB	210
45c7212c	211	fprintf(stderr, "invalid interface type %s\n", tpstr);
d17fe27e	212	return 2;
45c7212c JB	213	}
45c7212c JB	214
39566cca FF	215	static int parse_4addr_flag(const char value, struct nl_msg msg)
	216	{
	217	if (strcmp(value, "on") == 0)
	218	NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, 1);
	219	else if (strcmp(value, "off") == 0)
	220	NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, 0);
	221	else
	222	return 1;
	223	return 0;
	224
	225	nla_put_failure:
	226	return 1;
	227	}
	228
7c37a24d	229	static int handle_interface_add(struct nl80211_state *state,
bd396f2a	230	struct nl_msg *msg,
05514f95 JB	231	int argc, char **argv,
05514f95 JB	232	enum id_input id)
45c7212c	233	{
2dfd6bfa	234	char *name;
3d1e8704	235	char *mesh_id = NULL;
45c7212c	236	enum nl80211_iftype type;
70391ccf	237	int tpset;
ced5522d BG	238	unsigned char mac_addr[ETH_ALEN];
ced5522d BG	239	int found_mac = 0;
45c7212c	240
bd396f2a	241	if (argc < 1)
5e75fd04	242	return 1;
45c7212c	243
2dfd6bfa	244	name = argv[0];
45c7212c JB	245	argc--;
	246	argv++;
	247
d17fe27e JB	248	tpset = get_if_type(&argc, &argv, &type, true);
d17fe27e JB	249	if (tpset)
c1d44a6c	250	return tpset;
45c7212c	251
ced5522d	252	try_another:
3d1e8704	253	if (argc) {
dd65496b JB	254	if (strcmp(argv[0], "mesh_id") == 0) {
	255	argc--;
	256	argv++;
	257
	258	if (!argc)
	259	return 1;
	260	mesh_id = argv[0];
	261	argc--;
	262	argv++;
ced5522d BG	263	} else if (strcmp(argv[0], "addr") == 0) {
	264	argc--;
	265	argv++;
	266	if (mac_addr_a2n(mac_addr, argv[0])) {
	267	fprintf(stderr, "Invalid MAC address\n");
	268	return 2;
	269	}
	270	argc--;
	271	argv++;
	272	found_mac = 1;
	273	goto try_another;
39566cca FF	274	} else if (strcmp(argv[0], "4addr") == 0) {
	275	argc--;
	276	argv++;
	277	if (parse_4addr_flag(argv[0], msg)) {
	278	fprintf(stderr, "4addr error\n");
	279	return 2;
	280	}
	281	argc--;
	282	argv++;
dd65496b JB	283	} else if (strcmp(argv[0], "flags") == 0) {
	284	argc--;
	285	argv++;
	286	if (parse_mntr_flags(&argc, &argv, msg)) {
	287	fprintf(stderr, "flags error\n");
	288	return 2;
	289	}
	290	} else {
5e75fd04	291	return 1;
dd65496b	292	}
3d1e8704 LCC	293	}
3d1e8704 LCC	294
5e75fd04 JB	295	if (argc)
5e75fd04 JB	296	return 1;
45c7212c	297
45c7212c	298	NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, name);
6d28ce25	299	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, type);
3d1e8704 LCC	300	if (mesh_id)
3d1e8704 LCC	301	NLA_PUT(msg, NL80211_ATTR_MESH_ID, strlen(mesh_id), mesh_id);
ced5522d BG	302	if (found_mac)
ced5522d BG	303	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
45c7212c	304
70391ccf	305	return 0;
5e75fd04	306	nla_put_failure:
70391ccf	307	return -ENOBUFS;
45c7212c	308	}
ced5522d	309	COMMAND(interface, add, "<name> type <type> [mesh_id <meshid>] [4addr on\|off] [flags <flag>*] [addr <mac-addr>]",
1ae3d621 JB	310	NL80211_CMD_NEW_INTERFACE, 0, CIB_PHY, handle_interface_add,
	311	"Add a new virtual interface with the given configuration.\n"
	312	IFACE_TYPES "\n\n"
	313	"The flags are only used for monitor interfaces, valid flags are:\n"
	314	VALID_FLAGS "\n\n"
	315	"The mesh_id is used only for mesh mode.");
ced5522d	316	COMMAND(interface, add, "<name> type <type> [mesh_id <meshid>] [4addr on\|off] [flags <flag>*] [addr <mac-addr>]",
01ae06f9	317	NL80211_CMD_NEW_INTERFACE, 0, CIB_NETDEV, handle_interface_add, NULL);
45c7212c	318
7c37a24d	319	static int handle_interface_del(struct nl80211_state *state,
bd396f2a	320	struct nl_msg *msg,
05514f95 JB	321	int argc, char **argv,
05514f95 JB	322	enum id_input id)
3fcfe40e	323	{
70391ccf	324	return 0;
3fcfe40e	325	}
1ae3d621 JB	326	TOPLEVEL(del, NULL, NL80211_CMD_DEL_INTERFACE, 0, CIB_NETDEV, handle_interface_del,
1ae3d621 JB	327	"Remove this virtual interface");
ce5af55c	328	HIDDEN(interface, del, NULL, NL80211_CMD_DEL_INTERFACE, 0, CIB_NETDEV, handle_interface_del);
3fcfe40e	329
3adcc1f4 PF	330	static char *channel_type_name(enum nl80211_channel_type channel_type)
	331	{
	332	switch (channel_type) {
	333	case NL80211_CHAN_NO_HT:
	334	return "NO HT";
	335	case NL80211_CHAN_HT20:
	336	return "HT20";
	337	case NL80211_CHAN_HT40MINUS:
	338	return "HT40-";
	339	case NL80211_CHAN_HT40PLUS:
	340	return "HT40+";
	341	default:
	342	return "unknown";
	343	}
	344	}
	345
c5df9eb6	346	char *channel_width_name(enum nl80211_chan_width width)
7c60bb76 JB	347	{
	348	switch (width) {
	349	case NL80211_CHAN_WIDTH_20_NOHT:
	350	return "20 MHz (no HT)";
	351	case NL80211_CHAN_WIDTH_20:
	352	return "20 MHz";
	353	case NL80211_CHAN_WIDTH_40:
	354	return "40 MHz";
	355	case NL80211_CHAN_WIDTH_80:
	356	return "80 MHz";
	357	case NL80211_CHAN_WIDTH_80P80:
	358	return "80+80 MHz";
	359	case NL80211_CHAN_WIDTH_160:
	360	return "160 MHz";
432b5ae2 BC	361	case NL80211_CHAN_WIDTH_5:
	362	return "5 MHz";
	363	case NL80211_CHAN_WIDTH_10:
	364	return "10 MHz";
7c60bb76 JB	365	default:
	366	return "unknown";
	367	}
	368	}
	369
541ef425 JB	370	static int print_iface_handler(struct nl_msg msg, void arg)
	371	{
	372	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
	373	struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
674567b8 JB	374	unsigned int *wiphy = arg;
674567b8 JB	375	const char *indent = "";
541ef425 JB	376
	377	nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
	378	genlmsg_attrlen(gnlh, 0), NULL);
	379
674567b8 JB	380	if (wiphy && tb_msg[NL80211_ATTR_WIPHY]) {
	381	unsigned int thiswiphy = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY]);
	382	indent = "\t";
	383	if (*wiphy != thiswiphy)
	384	printf("phy#%d\n", thiswiphy);
	385	*wiphy = thiswiphy;
	386	}
	387
541ef425	388	if (tb_msg[NL80211_ATTR_IFNAME])
674567b8	389	printf("%sInterface %s\n", indent, nla_get_string(tb_msg[NL80211_ATTR_IFNAME]));
3508c5c9 JB	390	else
3508c5c9 JB	391	printf("%sUnnamed/non-netdev interface\n", indent);
541ef425	392	if (tb_msg[NL80211_ATTR_IFINDEX])
674567b8	393	printf("%s\tifindex %d\n", indent, nla_get_u32(tb_msg[NL80211_ATTR_IFINDEX]));
3508c5c9 JB	394	if (tb_msg[NL80211_ATTR_WDEV])
	395	printf("%s\twdev 0x%llx\n", indent,
	396	(unsigned long long)nla_get_u64(tb_msg[NL80211_ATTR_WDEV]));
	397	if (tb_msg[NL80211_ATTR_MAC]) {
	398	char mac_addr[20];
	399	mac_addr_n2a(mac_addr, nla_data(tb_msg[NL80211_ATTR_MAC]));
	400	printf("%s\taddr %s\n", indent, mac_addr);
	401	}
01009c3d AQ	402	if (tb_msg[NL80211_ATTR_SSID]) {
	403	printf("%s\tssid ", indent);
	404	print_ssid_escaped(nla_len(tb_msg[NL80211_ATTR_SSID]),
	405	nla_data(tb_msg[NL80211_ATTR_SSID]));
	406	printf("\n");
	407	}
541ef425	408	if (tb_msg[NL80211_ATTR_IFTYPE])
674567b8	409	printf("%s\ttype %s\n", indent, iftype_name(nla_get_u32(tb_msg[NL80211_ATTR_IFTYPE])));
47b76de4	410	if (!wiphy && tb_msg[NL80211_ATTR_WIPHY])
5b050af4	411	printf("%s\twiphy %d\n", indent, nla_get_u32(tb_msg[NL80211_ATTR_WIPHY]));
3adcc1f4 PF	412	if (tb_msg[NL80211_ATTR_WIPHY_FREQ]) {
3adcc1f4 PF	413	uint32_t freq = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_FREQ]);
3adcc1f4	414
7c60bb76 JB	415	printf("%s\tchannel %d (%d MHz)", indent,
	416	ieee80211_frequency_to_channel(freq), freq);
	417
	418	if (tb_msg[NL80211_ATTR_CHANNEL_WIDTH]) {
	419	printf(", width: %s",
	420	channel_width_name(nla_get_u32(tb_msg[NL80211_ATTR_CHANNEL_WIDTH])));
	421	if (tb_msg[NL80211_ATTR_CENTER_FREQ1])
	422	printf(", center1: %d MHz",
	423	nla_get_u32(tb_msg[NL80211_ATTR_CENTER_FREQ1]));
	424	if (tb_msg[NL80211_ATTR_CENTER_FREQ2])
	425	printf(", center2: %d MHz",
	426	nla_get_u32(tb_msg[NL80211_ATTR_CENTER_FREQ2]));
	427	} else if (tb_msg[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
	428	enum nl80211_channel_type channel_type;
	429
3adcc1f4	430	channel_type = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
7c60bb76 JB	431	printf(" %s", channel_type_name(channel_type));
7c60bb76 JB	432	}
3adcc1f4	433
7c60bb76	434	printf("\n");
3adcc1f4	435	}
541ef425	436
619d28ab RM	437	if (tb_msg[NL80211_ATTR_WIPHY_TX_POWER_LEVEL]) {
	438	uint32_t txp = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_TX_POWER_LEVEL]);
	439
	440	printf("%s\ttxpower %d.%.2d dBm\n",
	441	indent, txp / 100, txp % 100);
	442	}
	443
541ef425 JB	444	return NL_SKIP;
	445	}
	446
7c37a24d	447	static int handle_interface_info(struct nl80211_state *state,
bd396f2a	448	struct nl_msg *msg,
05514f95 JB	449	int argc, char **argv,
05514f95 JB	450	enum id_input id)
541ef425	451	{
34b23014	452	register_handler(print_iface_handler, NULL);
70391ccf	453	return 0;
541ef425	454	}
1ae3d621 JB	455	TOPLEVEL(info, NULL, NL80211_CMD_GET_INTERFACE, 0, CIB_NETDEV, handle_interface_info,
1ae3d621 JB	456	"Show information for this interface.");
cd293761	457
7c37a24d	458	static int handle_interface_set(struct nl80211_state *state,
cd293761	459	struct nl_msg *msg,
05514f95 JB	460	int argc, char **argv,
05514f95 JB	461	enum id_input id)
cd293761	462	{
cd293761 JB	463	if (!argc)
	464	return 1;
	465
cd293761 JB	466	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_MONITOR);
cd293761 JB	467
dd65496b JB	468	switch (parse_mntr_flags(&argc, &argv, msg)) {
	469	case 0:
	470	return 0;
386bacb2 AE	471	case 1:
386bacb2 AE	472	return 1;
dd65496b JB	473	case -ENOMEM:
	474	fprintf(stderr, "failed to allocate flags\n");
	475	return 2;
	476	case -EINVAL:
	477	fprintf(stderr, "unknown flag %s\n", *argv);
	478	return 2;
	479	default:
	480	return 2;
cd293761	481	}
cd293761	482	nla_put_failure:
dd65496b	483	return -ENOBUFS;
cd293761	484	}
1ae3d621 JB	485	COMMAND(set, monitor, "<flag>*",
	486	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_set,
	487	"Set monitor flags. Valid flags are:\n"
	488	VALID_FLAGS);
82d028d0	489
7c37a24d	490	static int handle_interface_meshid(struct nl80211_state *state,
82d028d0	491	struct nl_msg *msg,
05514f95 JB	492	int argc, char **argv,
05514f95 JB	493	enum id_input id)
82d028d0 JB	494	{
	495	char *mesh_id = NULL;
	496
	497	if (argc != 1)
	498	return 1;
	499
	500	mesh_id = argv[0];
	501
	502	NLA_PUT(msg, NL80211_ATTR_MESH_ID, strlen(mesh_id), mesh_id);
	503
	504	return 0;
	505	nla_put_failure:
	506	return -ENOBUFS;
	507	}
	508	COMMAND(set, meshid, "<meshid>",
01ae06f9	509	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_meshid, NULL);
674567b8 JB	510
	511	static unsigned int dev_dump_wiphy;
	512
	513	static int handle_dev_dump(struct nl80211_state *state,
674567b8	514	struct nl_msg *msg,
05514f95 JB	515	int argc, char **argv,
05514f95 JB	516	enum id_input id)
674567b8 JB	517	{
674567b8 JB	518	dev_dump_wiphy = -1;
34b23014	519	register_handler(print_iface_handler, &dev_dump_wiphy);
674567b8 JB	520	return 0;
674567b8 JB	521	}
1ae3d621 JB	522	TOPLEVEL(dev, NULL, NL80211_CMD_GET_INTERFACE, NLM_F_DUMP, CIB_NONE, handle_dev_dump,
1ae3d621 JB	523	"List all network interfaces for wireless hardware.");
d17fe27e JB	524
d17fe27e JB	525	static int handle_interface_type(struct nl80211_state *state,
d17fe27e	526	struct nl_msg *msg,
05514f95 JB	527	int argc, char **argv,
05514f95 JB	528	enum id_input id)
d17fe27e JB	529	{
	530	enum nl80211_iftype type;
	531	int tpset;
	532
	533	tpset = get_if_type(&argc, &argv, &type, false);
	534	if (tpset)
	535	return tpset;
	536
	537	if (argc)
	538	return 1;
	539
	540	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, type);
	541
	542	return 0;
	543	nla_put_failure:
	544	return -ENOBUFS;
	545	}
	546	COMMAND(set, type, "<type>",
1ae3d621 JB	547	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_type,
	548	"Set interface type/mode.\n"
	549	IFACE_TYPES);
20e4ff8a JF	550
20e4ff8a JF	551	static int handle_interface_4addr(struct nl80211_state *state,
05514f95 JB	552	struct nl_msg *msg,
	553	int argc, char **argv,
	554	enum id_input id)
20e4ff8a JF	555	{
	556	if (argc != 1)
	557	return 1;
	558	return parse_4addr_flag(argv[0], msg);
	559	}
	560	COMMAND(set, 4addr, "<on\|off>",
	561	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_4addr,
5548dfd7	562	"Set interface 4addr (WDS) mode.");
88c06599	563
83a7bd0d	564	static int handle_interface_noack_map(struct nl80211_state *state,
83a7bd0d	565	struct nl_msg *msg,
05514f95 JB	566	int argc, char **argv,
05514f95 JB	567	enum id_input id)
83a7bd0d SW	568	{
	569	uint16_t noack_map;
	570	char *end;
	571
	572	if (argc != 1)
	573	return 1;
	574
	575	noack_map = strtoul(argv[0], &end, 16);
	576	if (*end)
	577	return 1;
	578
	579	NLA_PUT_U16(msg, NL80211_ATTR_NOACK_MAP, noack_map);
	580
	581	return 0;
	582	nla_put_failure:
	583	return -ENOBUFS;
	584
	585	}
	586	COMMAND(set, noack_map, "<map>",
	587	NL80211_CMD_SET_NOACK_MAP, 0, CIB_NETDEV, handle_interface_noack_map,
	588	"Set the NoAck map for the TIDs. (0x0009 = BE, 0x0006 = BK, 0x0030 = VI, 0x00C0 = VO)");
	589
	590
88c06599	591	static int handle_interface_wds_peer(struct nl80211_state *state,
88c06599	592	struct nl_msg *msg,
05514f95 JB	593	int argc, char **argv,
05514f95 JB	594	enum id_input id)
88c06599 BJ	595	{
	596	unsigned char mac_addr[ETH_ALEN];
	597
	598	if (argc < 1)
	599	return 1;
	600
	601	if (mac_addr_a2n(mac_addr, argv[0])) {
5548dfd7	602	fprintf(stderr, "Invalid MAC address\n");
88c06599 BJ	603	return 2;
	604	}
	605
	606	argc--;
	607	argv++;
	608
	609	if (argc)
	610	return 1;
	611
	612	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
	613
	614	return 0;
	615	nla_put_failure:
	616	return -ENOBUFS;
	617	}
	618	COMMAND(set, peer, "<MAC address>",
	619	NL80211_CMD_SET_WDS_PEER, 0, CIB_NETDEV, handle_interface_wds_peer,
5548dfd7	620	"Set interface WDS peer.");
ffaac0f7 AQ	621
ffaac0f7 AQ	622	static int set_mcast_rate(struct nl80211_state *state,
ffaac0f7 AQ	623	struct nl_msg *msg,
	624	int argc, char **argv,
	625	enum id_input id)
	626	{
	627	float rate;
	628	char *end;
	629
86a9801f OO	630	if (argc != 1)
86a9801f OO	631	return 1;
ffaac0f7 AQ	632
	633	rate = strtod(argv[0], &end);
	634	if (*end != '\0')
	635	return 1;
	636
	637	NLA_PUT_U32(msg, NL80211_ATTR_MCAST_RATE, (int)(rate * 10));
	638
	639	return 0;
	640	nla_put_failure:
	641	return -ENOBUFS;
	642	}
	643
	644	COMMAND(set, mcast_rate, "<rate in Mbps>",
	645	NL80211_CMD_SET_MCAST_RATE, 0, CIB_NETDEV, set_mcast_rate,
	646	"Set the multicast bitrate.");