[thirdparty/iw.git] / interface.c

#include <net/if.h>
#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"

SECTION(interface);

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

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;
		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, "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, "__p2pgo") == 0) {
		*type = NL80211_IFTYPE_P2P_GO;
		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_cb *cb,
				struct nl_msg *msg,
				int argc, char **argv,
				enum id_input id)
{
	char *name;
	char *mesh_id = NULL;
	enum nl80211_iftype type;
	int tpset;

	if (argc < 1)
		return 1;

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

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

	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], "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);

	return 0;
 nla_put_failure:
	return -ENOBUFS;
}
COMMAND(interface, add, "<name> type <type> [mesh_id <meshid>] [4addr on|off] [flags <flag>*]",
	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>*]",
	NL80211_CMD_NEW_INTERFACE, 0, CIB_NETDEV, handle_interface_add, NULL);

static int handle_interface_del(struct nl80211_state *state,
				struct nl_cb *cb,
				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";
	}
}

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_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]);
		enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;

		if (tb_msg[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
			channel_type = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);

		printf("%s\tchannel %d (%d MHz) %s\n", indent,
		       ieee80211_frequency_to_channel(freq), freq,
		       channel_type_name(channel_type));
	}

	return NL_SKIP;
}

static int handle_interface_info(struct nl80211_state *state,
				 struct nl_cb *cb,
				 struct nl_msg *msg,
				 int argc, char **argv,
				 enum id_input id)
{
	nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 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_cb *cb,
				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 -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_cb *cb,
				   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_cb *cb,
			   struct nl_msg *msg,
			   int argc, char **argv,
			   enum id_input id)
{
	dev_dump_wiphy = -1;
	nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, 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_cb *cb,
				 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_cb *cb,
				  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_cb *cb,
				      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_cb *cb,
				     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.");
Commit	Line	Data
2ef1be68	1	#include <net/if.h>
45c7212c	2	#include <errno.h>
d5ac8ad3	3	#include <string.h>
d17fe27e	4	#include <stdbool.h>
2ef1be68	5
45c7212c JB	6	#include <netlink/genl/genl.h>
	7	#include <netlink/genl/family.h>
	8	#include <netlink/genl/ctrl.h>
	9	#include <netlink/msg.h>
	10	#include <netlink/attr.h>
45c7212c	11
f408e01b	12	#include "nl80211.h"
45c7212c JB	13	#include "iw.h"
45c7212c JB	14
1ae3d621 JB	15	#define VALID_FLAGS "none: no special flags\n"\
	16	"fcsfail: show frames with FCS errors\n"\
	17	"control: show control frames\n"\
	18	"otherbss: show frames from other BSSes\n"\
	19	"cook: use cooked mode"
	20
4698bfc2 JB	21	SECTION(interface);
4698bfc2 JB	22
cd293761	23	static char *mntr_flags[NL80211_MNTR_FLAG_MAX + 1] = {
dd65496b	24	"none",
cd293761 JB	25	"fcsfail",
	26	"plcpfail",
	27	"control",
	28	"otherbss",
	29	"cook",
	30	};
	31
dd65496b JB	32	static int parse_mntr_flags(int _argc, char **_argv,
	33	struct nl_msg *msg)
	34	{
	35	struct nl_msg *flags;
	36	int err = -ENOBUFS;
	37	enum nl80211_mntr_flags flag;
	38	int argc = *_argc;
	39	char *argv = _argv;
	40
	41	flags = nlmsg_alloc();
	42	if (!flags)
	43	return -ENOMEM;
	44
	45	while (argc) {
	46	int ok = 0;
	47	for (flag = __NL80211_MNTR_FLAG_INVALID;
e14cc99e	48	flag <= NL80211_MNTR_FLAG_MAX; flag++) {
dd65496b JB	49	if (strcmp(*argv, mntr_flags[flag]) == 0) {
dd65496b JB	50	ok = 1;
4a3bf753 JB	51	/*
	52	* This shouldn't be adding "flag" if that is
	53	* zero, but due to a problem in the kernel's
	54	* nl80211 code (using NLA_NESTED policy) it
	55	* will reject an empty nested attribute but
	56	* not one that contains an invalid attribute
	57	*/
dd65496b JB	58	NLA_PUT_FLAG(flags, flag);
	59	break;
	60	}
	61	}
	62	if (!ok) {
	63	err = -EINVAL;
	64	goto out;
	65	}
	66	argc--;
	67	argv++;
	68	}
	69
	70	nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
	71	err = 0;
	72	nla_put_failure:
	73	out:
	74	nlmsg_free(flags);
	75
	76	*_argc = argc;
	77	*_argv = argv;
	78
	79	return err;
	80	}
	81
1ae3d621 JB	82	/* for help */
	83	#define IFACE_TYPES "Valid interface types are: managed, ibss, monitor, mesh, wds."
	84
d17fe27e JB	85	/* return 0 if ok, internal error otherwise */
	86	static int get_if_type(int argc, char *argv, enum nl80211_iftype type,
	87	bool need_type)
45c7212c JB	88	{
	89	char *tpstr;
	90
d17fe27e JB	91	if (*argc < 1 + !!need_type)
d17fe27e JB	92	return 1;
45c7212c	93
d17fe27e JB	94	if (need_type && strcmp((*argv)[0], "type"))
d17fe27e JB	95	return 1;
45c7212c	96
d17fe27e JB	97	tpstr = (*argv)[!!need_type];
	98	*argc -= 1 + !!need_type;
	99	*argv += 1 + !!need_type;
45c7212c JB	100
	101	if (strcmp(tpstr, "adhoc") == 0 \|\|
	102	strcmp(tpstr, "ibss") == 0) {
	103	*type = NL80211_IFTYPE_ADHOC;
d17fe27e	104	return 0;
45c7212c JB	105	} else if (strcmp(tpstr, "monitor") == 0) {
45c7212c JB	106	*type = NL80211_IFTYPE_MONITOR;
d17fe27e	107	return 0;
e08b5488 JB	108	} else if (strcmp(tpstr, "master") == 0 \|\|
e08b5488 JB	109	strcmp(tpstr, "ap") == 0) {
c1d44a6c	110	*type = NL80211_IFTYPE_UNSPECIFIED;
e08b5488 JB	111	fprintf(stderr, "You need to run a management daemon, e.g. hostapd,\n");
	112	fprintf(stderr, "see http://wireless.kernel.org/en/users/Documentation/hostapd\n");
	113	fprintf(stderr, "for more information on how to do that.\n");
c1d44a6c	114	return 2;
4d3a72da	115	} else if (strcmp(tpstr, "__ap") == 0) {
45c7212c	116	*type = NL80211_IFTYPE_AP;
d17fe27e	117	return 0;
4d3a72da	118	} else if (strcmp(tpstr, "__ap_vlan") == 0) {
45c7212c	119	*type = NL80211_IFTYPE_AP_VLAN;
d17fe27e	120	return 0;
45c7212c JB	121	} else if (strcmp(tpstr, "wds") == 0) {
45c7212c JB	122	*type = NL80211_IFTYPE_WDS;
d17fe27e	123	return 0;
a65df165 JB	124	} else if (strcmp(tpstr, "managed") == 0 \|\|
	125	strcmp(tpstr, "mgd") == 0 \|\|
	126	strcmp(tpstr, "station") == 0) {
45c7212c	127	*type = NL80211_IFTYPE_STATION;
d17fe27e	128	return 0;
3d1e8704	129	} else if (strcmp(tpstr, "mp") == 0 \|\|
a65df165	130	strcmp(tpstr, "mesh") == 0) {
3d1e8704	131	*type = NL80211_IFTYPE_MESH_POINT;
d17fe27e	132	return 0;
a4464243 JB	133	} else if (strcmp(tpstr, "__p2pcl") == 0) {
	134	*type = NL80211_IFTYPE_P2P_CLIENT;
	135	return 0;
	136	} else if (strcmp(tpstr, "__p2pgo") == 0) {
	137	*type = NL80211_IFTYPE_P2P_GO;
	138	return 0;
45c7212c JB	139	}
45c7212c JB	140
45c7212c	141	fprintf(stderr, "invalid interface type %s\n", tpstr);
d17fe27e	142	return 2;
45c7212c JB	143	}
45c7212c JB	144
39566cca FF	145	static int parse_4addr_flag(const char value, struct nl_msg msg)
	146	{
	147	if (strcmp(value, "on") == 0)
	148	NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, 1);
	149	else if (strcmp(value, "off") == 0)
	150	NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, 0);
	151	else
	152	return 1;
	153	return 0;
	154
	155	nla_put_failure:
	156	return 1;
	157	}
	158
7c37a24d JB	159	static int handle_interface_add(struct nl80211_state *state,
7c37a24d JB	160	struct nl_cb *cb,
bd396f2a	161	struct nl_msg *msg,
05514f95 JB	162	int argc, char **argv,
05514f95 JB	163	enum id_input id)
45c7212c	164	{
2dfd6bfa	165	char *name;
3d1e8704	166	char *mesh_id = NULL;
45c7212c	167	enum nl80211_iftype type;
70391ccf	168	int tpset;
45c7212c	169
bd396f2a	170	if (argc < 1)
5e75fd04	171	return 1;
45c7212c	172
2dfd6bfa	173	name = argv[0];
45c7212c JB	174	argc--;
	175	argv++;
	176
d17fe27e JB	177	tpset = get_if_type(&argc, &argv, &type, true);
d17fe27e JB	178	if (tpset)
c1d44a6c	179	return tpset;
45c7212c	180
3d1e8704	181	if (argc) {
dd65496b JB	182	if (strcmp(argv[0], "mesh_id") == 0) {
	183	argc--;
	184	argv++;
	185
	186	if (!argc)
	187	return 1;
	188	mesh_id = argv[0];
	189	argc--;
	190	argv++;
39566cca FF	191	} else if (strcmp(argv[0], "4addr") == 0) {
	192	argc--;
	193	argv++;
	194	if (parse_4addr_flag(argv[0], msg)) {
	195	fprintf(stderr, "4addr error\n");
	196	return 2;
	197	}
	198	argc--;
	199	argv++;
dd65496b JB	200	} else if (strcmp(argv[0], "flags") == 0) {
	201	argc--;
	202	argv++;
	203	if (parse_mntr_flags(&argc, &argv, msg)) {
	204	fprintf(stderr, "flags error\n");
	205	return 2;
	206	}
	207	} else {
5e75fd04	208	return 1;
dd65496b	209	}
3d1e8704 LCC	210	}
3d1e8704 LCC	211
5e75fd04 JB	212	if (argc)
5e75fd04 JB	213	return 1;
45c7212c	214
45c7212c	215	NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, name);
6d28ce25	216	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, type);
3d1e8704 LCC	217	if (mesh_id)
3d1e8704 LCC	218	NLA_PUT(msg, NL80211_ATTR_MESH_ID, strlen(mesh_id), mesh_id);
45c7212c	219
70391ccf	220	return 0;
5e75fd04	221	nla_put_failure:
70391ccf	222	return -ENOBUFS;
45c7212c	223	}
39566cca	224	COMMAND(interface, add, "<name> type <type> [mesh_id <meshid>] [4addr on\|off] [flags <flag>*]",
1ae3d621 JB	225	NL80211_CMD_NEW_INTERFACE, 0, CIB_PHY, handle_interface_add,
	226	"Add a new virtual interface with the given configuration.\n"
	227	IFACE_TYPES "\n\n"
	228	"The flags are only used for monitor interfaces, valid flags are:\n"
	229	VALID_FLAGS "\n\n"
	230	"The mesh_id is used only for mesh mode.");
39566cca	231	COMMAND(interface, add, "<name> type <type> [mesh_id <meshid>] [4addr on\|off] [flags <flag>*]",
01ae06f9	232	NL80211_CMD_NEW_INTERFACE, 0, CIB_NETDEV, handle_interface_add, NULL);
45c7212c	233
7c37a24d JB	234	static int handle_interface_del(struct nl80211_state *state,
7c37a24d JB	235	struct nl_cb *cb,
bd396f2a	236	struct nl_msg *msg,
05514f95 JB	237	int argc, char **argv,
05514f95 JB	238	enum id_input id)
3fcfe40e	239	{
70391ccf	240	return 0;
3fcfe40e	241	}
1ae3d621 JB	242	TOPLEVEL(del, NULL, NL80211_CMD_DEL_INTERFACE, 0, CIB_NETDEV, handle_interface_del,
1ae3d621 JB	243	"Remove this virtual interface");
ce5af55c	244	HIDDEN(interface, del, NULL, NL80211_CMD_DEL_INTERFACE, 0, CIB_NETDEV, handle_interface_del);
3fcfe40e	245
3adcc1f4 PF	246	static char *channel_type_name(enum nl80211_channel_type channel_type)
	247	{
	248	switch (channel_type) {
	249	case NL80211_CHAN_NO_HT:
	250	return "NO HT";
	251	case NL80211_CHAN_HT20:
	252	return "HT20";
	253	case NL80211_CHAN_HT40MINUS:
	254	return "HT40-";
	255	case NL80211_CHAN_HT40PLUS:
	256	return "HT40+";
	257	default:
	258	return "unknown";
	259	}
	260	}
	261
541ef425 JB	262	static int print_iface_handler(struct nl_msg msg, void arg)
	263	{
	264	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
	265	struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
674567b8 JB	266	unsigned int *wiphy = arg;
674567b8 JB	267	const char *indent = "";
541ef425 JB	268
	269	nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
	270	genlmsg_attrlen(gnlh, 0), NULL);
	271
674567b8 JB	272	if (wiphy && tb_msg[NL80211_ATTR_WIPHY]) {
	273	unsigned int thiswiphy = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY]);
	274	indent = "\t";
	275	if (*wiphy != thiswiphy)
	276	printf("phy#%d\n", thiswiphy);
	277	*wiphy = thiswiphy;
	278	}
	279
541ef425	280	if (tb_msg[NL80211_ATTR_IFNAME])
674567b8	281	printf("%sInterface %s\n", indent, nla_get_string(tb_msg[NL80211_ATTR_IFNAME]));
3508c5c9 JB	282	else
3508c5c9 JB	283	printf("%sUnnamed/non-netdev interface\n", indent);
541ef425	284	if (tb_msg[NL80211_ATTR_IFINDEX])
674567b8	285	printf("%s\tifindex %d\n", indent, nla_get_u32(tb_msg[NL80211_ATTR_IFINDEX]));
3508c5c9 JB	286	if (tb_msg[NL80211_ATTR_WDEV])
	287	printf("%s\twdev 0x%llx\n", indent,
	288	(unsigned long long)nla_get_u64(tb_msg[NL80211_ATTR_WDEV]));
	289	if (tb_msg[NL80211_ATTR_MAC]) {
	290	char mac_addr[20];
	291	mac_addr_n2a(mac_addr, nla_data(tb_msg[NL80211_ATTR_MAC]));
	292	printf("%s\taddr %s\n", indent, mac_addr);
	293	}
541ef425	294	if (tb_msg[NL80211_ATTR_IFTYPE])
674567b8	295	printf("%s\ttype %s\n", indent, iftype_name(nla_get_u32(tb_msg[NL80211_ATTR_IFTYPE])));
47b76de4	296	if (!wiphy && tb_msg[NL80211_ATTR_WIPHY])
5b050af4	297	printf("%s\twiphy %d\n", indent, nla_get_u32(tb_msg[NL80211_ATTR_WIPHY]));
3adcc1f4 PF	298	if (tb_msg[NL80211_ATTR_WIPHY_FREQ]) {
	299	uint32_t freq = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_FREQ]);
	300	enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
	301
	302	if (tb_msg[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
	303	channel_type = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
	304
	305	printf("%s\tchannel %d (%d MHz) %s\n", indent,
	306	ieee80211_frequency_to_channel(freq), freq,
	307	channel_type_name(channel_type));
	308	}
541ef425 JB	309
	310	return NL_SKIP;
	311	}
	312
7c37a24d JB	313	static int handle_interface_info(struct nl80211_state *state,
7c37a24d JB	314	struct nl_cb *cb,
bd396f2a	315	struct nl_msg *msg,
05514f95 JB	316	int argc, char **argv,
05514f95 JB	317	enum id_input id)
541ef425	318	{
541ef425	319	nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_iface_handler, NULL);
70391ccf	320	return 0;
541ef425	321	}
1ae3d621 JB	322	TOPLEVEL(info, NULL, NL80211_CMD_GET_INTERFACE, 0, CIB_NETDEV, handle_interface_info,
1ae3d621 JB	323	"Show information for this interface.");
cd293761	324
7c37a24d JB	325	static int handle_interface_set(struct nl80211_state *state,
7c37a24d JB	326	struct nl_cb *cb,
cd293761	327	struct nl_msg *msg,
05514f95 JB	328	int argc, char **argv,
05514f95 JB	329	enum id_input id)
cd293761	330	{
cd293761 JB	331	if (!argc)
	332	return 1;
	333
cd293761 JB	334	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_MONITOR);
cd293761 JB	335
dd65496b JB	336	switch (parse_mntr_flags(&argc, &argv, msg)) {
	337	case 0:
	338	return 0;
	339	case -ENOMEM:
	340	fprintf(stderr, "failed to allocate flags\n");
	341	return 2;
	342	case -EINVAL:
	343	fprintf(stderr, "unknown flag %s\n", *argv);
	344	return 2;
	345	default:
	346	return 2;
cd293761	347	}
cd293761	348	nla_put_failure:
dd65496b	349	return -ENOBUFS;
cd293761	350	}
1ae3d621 JB	351	COMMAND(set, monitor, "<flag>*",
	352	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_set,
	353	"Set monitor flags. Valid flags are:\n"
	354	VALID_FLAGS);
82d028d0	355
7c37a24d JB	356	static int handle_interface_meshid(struct nl80211_state *state,
7c37a24d JB	357	struct nl_cb *cb,
82d028d0	358	struct nl_msg *msg,
05514f95 JB	359	int argc, char **argv,
05514f95 JB	360	enum id_input id)
82d028d0 JB	361	{
	362	char *mesh_id = NULL;
	363
	364	if (argc != 1)
	365	return 1;
	366
	367	mesh_id = argv[0];
	368
	369	NLA_PUT(msg, NL80211_ATTR_MESH_ID, strlen(mesh_id), mesh_id);
	370
	371	return 0;
	372	nla_put_failure:
	373	return -ENOBUFS;
	374	}
	375	COMMAND(set, meshid, "<meshid>",
01ae06f9	376	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_meshid, NULL);
674567b8 JB	377
	378	static unsigned int dev_dump_wiphy;
	379
	380	static int handle_dev_dump(struct nl80211_state *state,
	381	struct nl_cb *cb,
	382	struct nl_msg *msg,
05514f95 JB	383	int argc, char **argv,
05514f95 JB	384	enum id_input id)
674567b8 JB	385	{
	386	dev_dump_wiphy = -1;
	387	nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_iface_handler, &dev_dump_wiphy);
	388	return 0;
	389	}
1ae3d621 JB	390	TOPLEVEL(dev, NULL, NL80211_CMD_GET_INTERFACE, NLM_F_DUMP, CIB_NONE, handle_dev_dump,
1ae3d621 JB	391	"List all network interfaces for wireless hardware.");
d17fe27e JB	392
	393	static int handle_interface_type(struct nl80211_state *state,
	394	struct nl_cb *cb,
	395	struct nl_msg *msg,
05514f95 JB	396	int argc, char **argv,
05514f95 JB	397	enum id_input id)
d17fe27e JB	398	{
	399	enum nl80211_iftype type;
	400	int tpset;
	401
	402	tpset = get_if_type(&argc, &argv, &type, false);
	403	if (tpset)
	404	return tpset;
	405
	406	if (argc)
	407	return 1;
	408
	409	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, type);
	410
	411	return 0;
	412	nla_put_failure:
	413	return -ENOBUFS;
	414	}
	415	COMMAND(set, type, "<type>",
1ae3d621 JB	416	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_type,
	417	"Set interface type/mode.\n"
	418	IFACE_TYPES);
20e4ff8a JF	419
20e4ff8a JF	420	static int handle_interface_4addr(struct nl80211_state *state,
05514f95 JB	421	struct nl_cb *cb,
	422	struct nl_msg *msg,
	423	int argc, char **argv,
	424	enum id_input id)
20e4ff8a JF	425	{
	426	if (argc != 1)
	427	return 1;
	428	return parse_4addr_flag(argv[0], msg);
	429	}
	430	COMMAND(set, 4addr, "<on\|off>",
	431	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_4addr,
5548dfd7	432	"Set interface 4addr (WDS) mode.");
88c06599	433
83a7bd0d SW	434	static int handle_interface_noack_map(struct nl80211_state *state,
	435	struct nl_cb *cb,
	436	struct nl_msg *msg,
05514f95 JB	437	int argc, char **argv,
05514f95 JB	438	enum id_input id)
83a7bd0d SW	439	{
	440	uint16_t noack_map;
	441	char *end;
	442
	443	if (argc != 1)
	444	return 1;
	445
	446	noack_map = strtoul(argv[0], &end, 16);
	447	if (*end)
	448	return 1;
	449
	450	NLA_PUT_U16(msg, NL80211_ATTR_NOACK_MAP, noack_map);
	451
	452	return 0;
	453	nla_put_failure:
	454	return -ENOBUFS;
	455
	456	}
	457	COMMAND(set, noack_map, "<map>",
	458	NL80211_CMD_SET_NOACK_MAP, 0, CIB_NETDEV, handle_interface_noack_map,
	459	"Set the NoAck map for the TIDs. (0x0009 = BE, 0x0006 = BK, 0x0030 = VI, 0x00C0 = VO)");
	460
	461
88c06599 BJ	462	static int handle_interface_wds_peer(struct nl80211_state *state,
	463	struct nl_cb *cb,
	464	struct nl_msg *msg,
05514f95 JB	465	int argc, char **argv,
05514f95 JB	466	enum id_input id)
88c06599 BJ	467	{
	468	unsigned char mac_addr[ETH_ALEN];
	469
	470	if (argc < 1)
	471	return 1;
	472
	473	if (mac_addr_a2n(mac_addr, argv[0])) {
5548dfd7	474	fprintf(stderr, "Invalid MAC address\n");
88c06599 BJ	475	return 2;
	476	}
	477
	478	argc--;
	479	argv++;
	480
	481	if (argc)
	482	return 1;
	483
	484	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
	485
	486	return 0;
	487	nla_put_failure:
	488	return -ENOBUFS;
	489	}
	490	COMMAND(set, peer, "<MAC address>",
	491	NL80211_CMD_SET_WDS_PEER, 0, CIB_NETDEV, handle_interface_wds_peer,
5548dfd7	492	"Set interface WDS peer.");