[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) {
		*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 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)
{
	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)
{
	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
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;
c1d44a6c JB	108	} else if (strcmp(tpstr, "master") == 0) {
	109	*type = NL80211_IFTYPE_UNSPECIFIED;
	110	fprintf(stderr, "See http://wireless.kernel.org/RTFM-AP.\n");
	111	return 2;
	112	} else if (strcmp(tpstr, "ap") == 0) {
	113	*type = NL80211_IFTYPE_UNSPECIFIED;
	114	fprintf(stderr, "See http://wireless.kernel.org/RTFM-AP.\n");
	115	return 2;
4d3a72da	116	} else if (strcmp(tpstr, "__ap") == 0) {
45c7212c	117	*type = NL80211_IFTYPE_AP;
d17fe27e	118	return 0;
4d3a72da	119	} else if (strcmp(tpstr, "__ap_vlan") == 0) {
45c7212c	120	*type = NL80211_IFTYPE_AP_VLAN;
d17fe27e	121	return 0;
45c7212c JB	122	} else if (strcmp(tpstr, "wds") == 0) {
45c7212c JB	123	*type = NL80211_IFTYPE_WDS;
d17fe27e	124	return 0;
a65df165 JB	125	} else if (strcmp(tpstr, "managed") == 0 \|\|
	126	strcmp(tpstr, "mgd") == 0 \|\|
	127	strcmp(tpstr, "station") == 0) {
45c7212c	128	*type = NL80211_IFTYPE_STATION;
d17fe27e	129	return 0;
3d1e8704	130	} else if (strcmp(tpstr, "mp") == 0 \|\|
a65df165	131	strcmp(tpstr, "mesh") == 0) {
3d1e8704	132	*type = NL80211_IFTYPE_MESH_POINT;
d17fe27e	133	return 0;
45c7212c JB	134	}
45c7212c JB	135
45c7212c	136	fprintf(stderr, "invalid interface type %s\n", tpstr);
d17fe27e	137	return 2;
45c7212c JB	138	}
45c7212c JB	139
39566cca FF	140	static int parse_4addr_flag(const char value, struct nl_msg msg)
	141	{
	142	if (strcmp(value, "on") == 0)
	143	NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, 1);
	144	else if (strcmp(value, "off") == 0)
	145	NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, 0);
	146	else
	147	return 1;
	148	return 0;
	149
	150	nla_put_failure:
	151	return 1;
	152	}
	153
7c37a24d JB	154	static int handle_interface_add(struct nl80211_state *state,
7c37a24d JB	155	struct nl_cb *cb,
bd396f2a JB	156	struct nl_msg *msg,
bd396f2a JB	157	int argc, char **argv)
45c7212c	158	{
2dfd6bfa	159	char *name;
3d1e8704	160	char *mesh_id = NULL;
45c7212c	161	enum nl80211_iftype type;
70391ccf	162	int tpset;
45c7212c	163
bd396f2a	164	if (argc < 1)
5e75fd04	165	return 1;
45c7212c	166
2dfd6bfa	167	name = argv[0];
45c7212c JB	168	argc--;
	169	argv++;
	170
d17fe27e JB	171	tpset = get_if_type(&argc, &argv, &type, true);
d17fe27e JB	172	if (tpset)
c1d44a6c	173	return tpset;
45c7212c	174
3d1e8704	175	if (argc) {
dd65496b JB	176	if (strcmp(argv[0], "mesh_id") == 0) {
	177	argc--;
	178	argv++;
	179
	180	if (!argc)
	181	return 1;
	182	mesh_id = argv[0];
	183	argc--;
	184	argv++;
39566cca FF	185	} else if (strcmp(argv[0], "4addr") == 0) {
	186	argc--;
	187	argv++;
	188	if (parse_4addr_flag(argv[0], msg)) {
	189	fprintf(stderr, "4addr error\n");
	190	return 2;
	191	}
	192	argc--;
	193	argv++;
dd65496b JB	194	} else if (strcmp(argv[0], "flags") == 0) {
	195	argc--;
	196	argv++;
	197	if (parse_mntr_flags(&argc, &argv, msg)) {
	198	fprintf(stderr, "flags error\n");
	199	return 2;
	200	}
	201	} else {
5e75fd04	202	return 1;
dd65496b	203	}
3d1e8704 LCC	204	}
3d1e8704 LCC	205
5e75fd04 JB	206	if (argc)
5e75fd04 JB	207	return 1;
45c7212c	208
45c7212c	209	NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, name);
6d28ce25	210	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, type);
3d1e8704 LCC	211	if (mesh_id)
3d1e8704 LCC	212	NLA_PUT(msg, NL80211_ATTR_MESH_ID, strlen(mesh_id), mesh_id);
45c7212c	213
70391ccf	214	return 0;
5e75fd04	215	nla_put_failure:
70391ccf	216	return -ENOBUFS;
45c7212c	217	}
39566cca	218	COMMAND(interface, add, "<name> type <type> [mesh_id <meshid>] [4addr on\|off] [flags <flag>*]",
1ae3d621 JB	219	NL80211_CMD_NEW_INTERFACE, 0, CIB_PHY, handle_interface_add,
	220	"Add a new virtual interface with the given configuration.\n"
	221	IFACE_TYPES "\n\n"
	222	"The flags are only used for monitor interfaces, valid flags are:\n"
	223	VALID_FLAGS "\n\n"
	224	"The mesh_id is used only for mesh mode.");
39566cca	225	COMMAND(interface, add, "<name> type <type> [mesh_id <meshid>] [4addr on\|off] [flags <flag>*]",
01ae06f9	226	NL80211_CMD_NEW_INTERFACE, 0, CIB_NETDEV, handle_interface_add, NULL);
45c7212c	227
7c37a24d JB	228	static int handle_interface_del(struct nl80211_state *state,
7c37a24d JB	229	struct nl_cb *cb,
bd396f2a JB	230	struct nl_msg *msg,
bd396f2a JB	231	int argc, char **argv)
3fcfe40e	232	{
70391ccf	233	return 0;
3fcfe40e	234	}
1ae3d621 JB	235	TOPLEVEL(del, NULL, NL80211_CMD_DEL_INTERFACE, 0, CIB_NETDEV, handle_interface_del,
1ae3d621 JB	236	"Remove this virtual interface");
ce5af55c	237	HIDDEN(interface, del, NULL, NL80211_CMD_DEL_INTERFACE, 0, CIB_NETDEV, handle_interface_del);
3fcfe40e	238
541ef425 JB	239	static int print_iface_handler(struct nl_msg msg, void arg)
	240	{
	241	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
	242	struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
674567b8 JB	243	unsigned int *wiphy = arg;
674567b8 JB	244	const char *indent = "";
541ef425 JB	245
	246	nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
	247	genlmsg_attrlen(gnlh, 0), NULL);
	248
674567b8 JB	249	if (wiphy && tb_msg[NL80211_ATTR_WIPHY]) {
	250	unsigned int thiswiphy = nla_get_u32(tb_msg[NL80211_ATTR_WIPHY]);
	251	indent = "\t";
	252	if (*wiphy != thiswiphy)
	253	printf("phy#%d\n", thiswiphy);
	254	*wiphy = thiswiphy;
	255	}
	256
541ef425	257	if (tb_msg[NL80211_ATTR_IFNAME])
674567b8	258	printf("%sInterface %s\n", indent, nla_get_string(tb_msg[NL80211_ATTR_IFNAME]));
541ef425	259	if (tb_msg[NL80211_ATTR_IFINDEX])
674567b8	260	printf("%s\tifindex %d\n", indent, nla_get_u32(tb_msg[NL80211_ATTR_IFINDEX]));
541ef425	261	if (tb_msg[NL80211_ATTR_IFTYPE])
674567b8	262	printf("%s\ttype %s\n", indent, iftype_name(nla_get_u32(tb_msg[NL80211_ATTR_IFTYPE])));
541ef425 JB	263
	264	return NL_SKIP;
	265	}
	266
7c37a24d JB	267	static int handle_interface_info(struct nl80211_state *state,
7c37a24d JB	268	struct nl_cb *cb,
bd396f2a JB	269	struct nl_msg *msg,
bd396f2a JB	270	int argc, char **argv)
541ef425	271	{
541ef425	272	nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_iface_handler, NULL);
70391ccf	273	return 0;
541ef425	274	}
1ae3d621 JB	275	TOPLEVEL(info, NULL, NL80211_CMD_GET_INTERFACE, 0, CIB_NETDEV, handle_interface_info,
1ae3d621 JB	276	"Show information for this interface.");
cd293761	277
7c37a24d JB	278	static int handle_interface_set(struct nl80211_state *state,
7c37a24d JB	279	struct nl_cb *cb,
cd293761 JB	280	struct nl_msg *msg,
	281	int argc, char **argv)
	282	{
cd293761 JB	283	if (!argc)
	284	return 1;
	285
cd293761 JB	286	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_MONITOR);
cd293761 JB	287
dd65496b JB	288	switch (parse_mntr_flags(&argc, &argv, msg)) {
	289	case 0:
	290	return 0;
	291	case -ENOMEM:
	292	fprintf(stderr, "failed to allocate flags\n");
	293	return 2;
	294	case -EINVAL:
	295	fprintf(stderr, "unknown flag %s\n", *argv);
	296	return 2;
	297	default:
	298	return 2;
cd293761	299	}
cd293761	300	nla_put_failure:
dd65496b	301	return -ENOBUFS;
cd293761	302	}
1ae3d621 JB	303	COMMAND(set, monitor, "<flag>*",
	304	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_set,
	305	"Set monitor flags. Valid flags are:\n"
	306	VALID_FLAGS);
82d028d0	307
7c37a24d JB	308	static int handle_interface_meshid(struct nl80211_state *state,
7c37a24d JB	309	struct nl_cb *cb,
82d028d0 JB	310	struct nl_msg *msg,
	311	int argc, char **argv)
	312	{
	313	char *mesh_id = NULL;
	314
	315	if (argc != 1)
	316	return 1;
	317
	318	mesh_id = argv[0];
	319
	320	NLA_PUT(msg, NL80211_ATTR_MESH_ID, strlen(mesh_id), mesh_id);
	321
	322	return 0;
	323	nla_put_failure:
	324	return -ENOBUFS;
	325	}
	326	COMMAND(set, meshid, "<meshid>",
01ae06f9	327	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_meshid, NULL);
674567b8 JB	328
	329	static unsigned int dev_dump_wiphy;
	330
	331	static int handle_dev_dump(struct nl80211_state *state,
	332	struct nl_cb *cb,
	333	struct nl_msg *msg,
	334	int argc, char **argv)
	335	{
	336	dev_dump_wiphy = -1;
	337	nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_iface_handler, &dev_dump_wiphy);
	338	return 0;
	339	}
1ae3d621 JB	340	TOPLEVEL(dev, NULL, NL80211_CMD_GET_INTERFACE, NLM_F_DUMP, CIB_NONE, handle_dev_dump,
1ae3d621 JB	341	"List all network interfaces for wireless hardware.");
d17fe27e JB	342
	343	static int handle_interface_type(struct nl80211_state *state,
	344	struct nl_cb *cb,
	345	struct nl_msg *msg,
	346	int argc, char **argv)
	347	{
	348	enum nl80211_iftype type;
	349	int tpset;
	350
	351	tpset = get_if_type(&argc, &argv, &type, false);
	352	if (tpset)
	353	return tpset;
	354
	355	if (argc)
	356	return 1;
	357
	358	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, type);
	359
	360	return 0;
	361	nla_put_failure:
	362	return -ENOBUFS;
	363	}
	364	COMMAND(set, type, "<type>",
1ae3d621 JB	365	NL80211_CMD_SET_INTERFACE, 0, CIB_NETDEV, handle_interface_type,
	366	"Set interface type/mode.\n"
	367	IFACE_TYPES);