[thirdparty/iw.git] / interface.c

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

#include <netlink/genl/genl.h>
#include <netlink/genl/family.h>
#include <netlink/genl/ctrl.h>
#include <netlink/msg.h>
#include <netlink/attr.h>

#include "nl80211.h"
#include "iw.h"

#define VALID_FLAGS	"none:     no special flags\n"\
			"fcsfail:  show frames with FCS errors\n"\
			"control:  show control frames\n"\
			"otherbss: show frames from other BSSes\n"\
			"cook:     use cooked mode\n"\
			"active:   use active mode (ACK incoming unicast packets)"

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");
	}

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

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

	return NL_SKIP;
}

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

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

	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_MONITOR);

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

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

	if (argc != 1)
		return 1;

	mesh_id = argv[0];

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

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

static unsigned int dev_dump_wiphy;

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

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

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

	if (argc)
		return 1;

	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, type);

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

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

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

	if (argc != 1)
		return 1;

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

	NLA_PUT_U16(msg, NL80211_ATTR_NOACK_MAP, noack_map);

	return 0;
 nla_put_failure:
	return -ENOBUFS;

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


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

	if (argc < 1)
		return 1;

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

	argc--;
	argv++;

	if (argc)
		return 1;

	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);

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

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

	if (argc != 1)
		return 1;

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

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

	return 0;
nla_put_failure:
	return -ENOBUFS;
}

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