[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\n"\
			"active:   use active mode (ACK incoming unicast packets)"

SECTION(interface);

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

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, "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;
	}

	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";
	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");
	}

	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 -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) {
		printf("Invalid parameters!\n");
		return 2;
	}

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