[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"

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) {
		*type = NL80211_IFTYPE_UNSPECIFIED;
		fprintf(stderr, "See http://wireless.kernel.org/RTFM-AP.\n");
		return 2;
	} else if (strcmp(tpstr, "ap") == 0) {
		*type = NL80211_IFTYPE_UNSPECIFIED;
		fprintf(stderr, "See http://wireless.kernel.org/RTFM-AP.\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;
	}

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

static int handle_interface_add(struct nl80211_state *state,
				struct nl_cb *cb,
				struct nl_msg *msg,
				int argc, char **argv)
{
	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], "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>] [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>] [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)
{
	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 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]));
	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_IFTYPE])
		printf("%s\ttype %s\n", indent, iftype_name(nla_get_u32(tb_msg[NL80211_ATTR_IFTYPE])));

	return NL_SKIP;
}

static int handle_interface_info(struct nl80211_state *state,
				 struct nl_cb *cb,
				 struct nl_msg *msg,
				 int argc, char **argv)
{
	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)
{
	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)
{
	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)
{
	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 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);
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
cd293761	21	static char *mntr_flags[NL80211_MNTR_FLAG_MAX + 1] = {
dd65496b	22	"none",
cd293761 JB	23	"fcsfail",
	24	"plcpfail",
	25	"control",
	26	"otherbss",
	27	"cook",
	28	};
	29
dd65496b JB	30	static int parse_mntr_flags(int _argc, char **_argv,
	31	struct nl_msg *msg)
	32	{
	33	struct nl_msg *flags;
	34	int err = -ENOBUFS;
	35	enum nl80211_mntr_flags flag;
	36	int argc = *_argc;
	37	char *argv = _argv;
	38
	39	flags = nlmsg_alloc();
	40	if (!flags)
	41	return -ENOMEM;
	42
	43	while (argc) {
	44	int ok = 0;
	45	for (flag = __NL80211_MNTR_FLAG_INVALID;
e14cc99e	46	flag <= NL80211_MNTR_FLAG_MAX; flag++) {
dd65496b JB	47	if (strcmp(*argv, mntr_flags[flag]) == 0) {
dd65496b JB	48	ok = 1;
4a3bf753 JB	49	/*
	50	* This shouldn't be adding "flag" if that is
	51	* zero, but due to a problem in the kernel's
	52	* nl80211 code (using NLA_NESTED policy) it
	53	* will reject an empty nested attribute but
	54	* not one that contains an invalid attribute
	55	*/
dd65496b JB	56	NLA_PUT_FLAG(flags, flag);
	57	break;
	58	}
	59	}
	60	if (!ok) {
	61	err = -EINVAL;
	62	goto out;
	63	}
	64	argc--;
	65	argv++;
	66	}
	67
	68	nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
	69	err = 0;
	70	nla_put_failure:
	71	out:
	72	nlmsg_free(flags);
	73
	74	*_argc = argc;
	75	*_argv = argv;
	76
	77	return err;
	78	}
	79
1ae3d621 JB	80	/* for help */
	81	#define IFACE_TYPES "Valid interface types are: managed, ibss, monitor, mesh, wds."
	82
d17fe27e JB	83	/* return 0 if ok, internal error otherwise */
	84	static int get_if_type(int argc, char *argv, enum nl80211_iftype type,
	85	bool need_type)
45c7212c JB	86	{
	87	char *tpstr;
	88
d17fe27e JB	89	if (*argc < 1 + !!need_type)
d17fe27e JB	90	return 1;
45c7212c	91
d17fe27e JB	92	if (need_type && strcmp((*argv)[0], "type"))
d17fe27e JB	93	return 1;
45c7212c	94
d17fe27e JB	95	tpstr = (*argv)[!!need_type];
	96	*argc -= 1 + !!need_type;
	97	*argv += 1 + !!need_type;
45c7212c JB	98
	99	if (strcmp(tpstr, "adhoc") == 0 \|\|
	100	strcmp(tpstr, "ibss") == 0) {
	101	*type = NL80211_IFTYPE_ADHOC;
d17fe27e	102	return 0;
45c7212c JB	103	} else if (strcmp(tpstr, "monitor") == 0) {
45c7212c JB	104	*type = NL80211_IFTYPE_MONITOR;
d17fe27e	105	return 0;
c1d44a6c JB	106	} else if (strcmp(tpstr, "master") == 0) {
	107	*type = NL80211_IFTYPE_UNSPECIFIED;
	108	fprintf(stderr, "See http://wireless.kernel.org/RTFM-AP.\n");
	109	return 2;
	110	} else if (strcmp(tpstr, "ap") == 0) {
	111	*type = NL80211_IFTYPE_UNSPECIFIED;
	112	fprintf(stderr, "See http://wireless.kernel.org/RTFM-AP.\n");
	113	return 2;
4d3a72da	114	} else if (strcmp(tpstr, "__ap") == 0) {
45c7212c	115	*type = NL80211_IFTYPE_AP;
d17fe27e	116	return 0;
4d3a72da	117	} else if (strcmp(tpstr, "__ap_vlan") == 0) {
45c7212c	118	*type = NL80211_IFTYPE_AP_VLAN;
d17fe27e	119	return 0;
45c7212c JB	120	} else if (strcmp(tpstr, "wds") == 0) {
45c7212c JB	121	*type = NL80211_IFTYPE_WDS;
d17fe27e	122	return 0;
a65df165 JB	123	} else if (strcmp(tpstr, "managed") == 0 \|\|
	124	strcmp(tpstr, "mgd") == 0 \|\|
	125	strcmp(tpstr, "station") == 0) {
45c7212c	126	*type = NL80211_IFTYPE_STATION;
d17fe27e	127	return 0;
3d1e8704	128	} else if (strcmp(tpstr, "mp") == 0 \|\|
a65df165	129	strcmp(tpstr, "mesh") == 0) {
3d1e8704	130	*type = NL80211_IFTYPE_MESH_POINT;
d17fe27e	131	return 0;
45c7212c JB	132	}
45c7212c JB	133
45c7212c	134	fprintf(stderr, "invalid interface type %s\n", tpstr);
d17fe27e	135	return 2;
45c7212c JB	136	}
45c7212c JB	137
7c37a24d JB	138	static int handle_interface_add(struct nl80211_state *state,
7c37a24d JB	139	struct nl_cb *cb,
bd396f2a JB	140	struct nl_msg *msg,
bd396f2a JB	141	int argc, char **argv)
45c7212c	142	{
2dfd6bfa	143	char *name;
3d1e8704	144	char *mesh_id = NULL;
45c7212c	145	enum nl80211_iftype type;
70391ccf	146	int tpset;
45c7212c	147
bd396f2a	148	if (argc < 1)
5e75fd04	149	return 1;
45c7212c	150
2dfd6bfa	151	name = argv[0];
45c7212c JB	152	argc--;
	153	argv++;
	154
d17fe27e JB	155	tpset = get_if_type(&argc, &argv, &type, true);
d17fe27e JB	156	if (tpset)
c1d44a6c	157	return tpset;
45c7212c	158
3d1e8704	159	if (argc) {
dd65496b JB	160	if (strcmp(argv[0], "mesh_id") == 0) {
	161	argc--;
	162	argv++;
	163
	164	if (!argc)
	165	return 1;
	166	mesh_id = argv[0];
	167	argc--;
	168	argv++;
	169	} else if (strcmp(argv[0], "flags") == 0) {
	170	argc--;
	171	argv++;
	172	if (parse_mntr_flags(&argc, &argv, msg)) {
	173	fprintf(stderr, "flags error\n");
	174	return 2;
	175	}
	176	} else {
5e75fd04	177	return 1;
dd65496b	178	}
3d1e8704 LCC	179	}
3d1e8704 LCC	180
5e75fd04 JB	181	if (argc)
5e75fd04 JB	182	return 1;
45c7212c	183
45c7212c	184	NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, name);
6d28ce25	185	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, type);
3d1e8704 LCC	186	if (mesh_id)
3d1e8704 LCC	187	NLA_PUT(msg, NL80211_ATTR_MESH_ID, strlen(mesh_id), mesh_id);
45c7212c	188
70391ccf	189	return 0;
5e75fd04	190	nla_put_failure:
70391ccf	191	return -ENOBUFS;
45c7212c	192	}
1ae3d621 JB	193	COMMAND(interface, add, "<name> type <type> [mesh_id <meshid>] [flags <flag>*]",
	194	NL80211_CMD_NEW_INTERFACE, 0, CIB_PHY, handle_interface_add,
	195	"Add a new virtual interface with the given configuration.\n"
	196	IFACE_TYPES "\n\n"
	197	"The flags are only used for monitor interfaces, valid flags are:\n"
	198	VALID_FLAGS "\n\n"
	199	"The mesh_id is used only for mesh mode.");
	200	COMMAND(interface, add, "<name> type <type> [mesh_id <meshid>] [flags <flag>*]",
01ae06f9	201	NL80211_CMD_NEW_INTERFACE, 0, CIB_NETDEV, handle_interface_add, NULL);
45c7212c	202
7c37a24d JB	203	static int handle_interface_del(struct nl80211_state *state,
7c37a24d JB	204	struct nl_cb *cb,
bd396f2a JB	205	struct nl_msg *msg,
bd396f2a JB	206	int argc, char **argv)
3fcfe40e	207	{
70391ccf	208	return 0;
3fcfe40e	209	}
1ae3d621 JB	210	TOPLEVEL(del, NULL, NL80211_CMD_DEL_INTERFACE, 0, CIB_NETDEV, handle_interface_del,
1ae3d621 JB	211	"Remove this virtual interface");
ce5af55c	212	HIDDEN(interface, del, NULL, NL80211_CMD_DEL_INTERFACE, 0, CIB_NETDEV, handle_interface_del);
3fcfe40e	213
541ef425 JB	214	static int print_iface_handler(struct nl_msg msg, void arg)
	215	{
	216	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
	217	struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
674567b8 JB	218	unsigned int *wiphy = arg;
674567b8 JB	219	const char *indent = "";
541ef425 JB	220
	221	nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
	222	genlmsg_attrlen(gnlh, 0), NULL);
	223
674567b8 JB	224	if (wiphy && tb_msg[NL80211_ATTR_WIPHY]) {
	225	unsigned int thiswiphy = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY]);
	226	indent = "\t";
	227	if (*wiphy != thiswiphy)
	228	printf("phy#%d\n", thiswiphy);
	229	*wiphy = thiswiphy;
	230	}
	231
541ef425	232	if (tb_msg[NL80211_ATTR_IFNAME])
674567b8	233	printf("%sInterface %s\n", indent, nla_get_string(tb_msg[NL80211_ATTR_IFNAME]));
541ef425	234	if (tb_msg[NL80211_ATTR_IFINDEX])
674567b8	235	printf("%s\tifindex %d\n", indent, nla_get_u32(tb_msg[NL80211_ATTR_IFINDEX]));
541ef425	236	if (tb_msg[NL80211_ATTR_IFTYPE])
674567b8	237	printf("%s\ttype %s\n", indent, iftype_name(nla_get_u32(tb_msg[NL80211_ATTR_IFTYPE])));
541ef425 JB	238
	239	return NL_SKIP;
	240	}
	241
7c37a24d JB	242	static int handle_interface_info(struct nl80211_state *state,
7c37a24d JB	243	struct nl_cb *cb,
bd396f2a JB	244	struct nl_msg *msg,
bd396f2a JB	245	int argc, char **argv)
541ef425	246	{
541ef425	247	nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_iface_handler, NULL);
70391ccf	248	return 0;
541ef425	249	}
1ae3d621 JB	250	TOPLEVEL(info, NULL, NL80211_CMD_GET_INTERFACE, 0, CIB_NETDEV, handle_interface_info,
1ae3d621 JB	251	"Show information for this interface.");
cd293761	252
7c37a24d JB	253	static int handle_interface_set(struct nl80211_state *state,
7c37a24d JB	254	struct nl_cb *cb,
cd293761 JB	255	struct nl_msg *msg,
	256	int argc, char **argv)
	257	{
cd293761 JB	258	if (!argc)
	259	return 1;
	260
cd293761 JB	261	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_MONITOR);
cd293761 JB	262
dd65496b JB	263	switch (parse_mntr_flags(&argc, &argv, msg)) {
	264	case 0:
	265	return 0;
	266	case -ENOMEM:
	267	fprintf(stderr, "failed to allocate flags\n");
	268	return 2;
	269	case -EINVAL:
	270	fprintf(stderr, "unknown flag %s\n", *argv);
	271	return 2;
	272	default:
	273	return 2;
cd293761	274	}
cd293761	275	nla_put_failure:
dd65496b	276	return -ENOBUFS;
cd293761	277	}
1ae3d621 JB	278	COMMAND(set, monitor, "<flag>*",
	279	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_set,
	280	"Set monitor flags. Valid flags are:\n"
	281	VALID_FLAGS);
82d028d0	282
7c37a24d JB	283	static int handle_interface_meshid(struct nl80211_state *state,
7c37a24d JB	284	struct nl_cb *cb,
82d028d0 JB	285	struct nl_msg *msg,
	286	int argc, char **argv)
	287	{
	288	char *mesh_id = NULL;
	289
	290	if (argc != 1)
	291	return 1;
	292
	293	mesh_id = argv[0];
	294
	295	NLA_PUT(msg, NL80211_ATTR_MESH_ID, strlen(mesh_id), mesh_id);
	296
	297	return 0;
	298	nla_put_failure:
	299	return -ENOBUFS;
	300	}
	301	COMMAND(set, meshid, "<meshid>",
01ae06f9	302	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_meshid, NULL);
674567b8 JB	303
	304	static unsigned int dev_dump_wiphy;
	305
	306	static int handle_dev_dump(struct nl80211_state *state,
	307	struct nl_cb *cb,
	308	struct nl_msg *msg,
	309	int argc, char **argv)
	310	{
	311	dev_dump_wiphy = -1;
	312	nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_iface_handler, &dev_dump_wiphy);
	313	return 0;
	314	}
1ae3d621 JB	315	TOPLEVEL(dev, NULL, NL80211_CMD_GET_INTERFACE, NLM_F_DUMP, CIB_NONE, handle_dev_dump,
1ae3d621 JB	316	"List all network interfaces for wireless hardware.");
d17fe27e JB	317
	318	static int handle_interface_type(struct nl80211_state *state,
	319	struct nl_cb *cb,
	320	struct nl_msg *msg,
	321	int argc, char **argv)
	322	{
	323	enum nl80211_iftype type;
	324	int tpset;
	325
	326	tpset = get_if_type(&argc, &argv, &type, false);
	327	if (tpset)
	328	return tpset;
	329
	330	if (argc)
	331	return 1;
	332
	333	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, type);
	334
	335	return 0;
	336	nla_put_failure:
	337	return -ENOBUFS;
	338	}
	339	COMMAND(set, type, "<type>",
1ae3d621 JB	340	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_type,
	341	"Set interface type/mode.\n"
	342	IFACE_TYPES);