[thirdparty/iw.git] / util.c

#include <ctype.h>
#include <netlink/attr.h>
#include <errno.h>
#include <stdbool.h>
#include "iw.h"
#include "nl80211.h"

void mac_addr_n2a(char *mac_addr, unsigned char *arg)
{
	int i, l;

	l = 0;
	for (i = 0; i < ETH_ALEN ; i++) {
		if (i == 0) {
			sprintf(mac_addr+l, "%02x", arg[i]);
			l += 2;
		} else {
			sprintf(mac_addr+l, ":%02x", arg[i]);
			l += 3;
		}
	}
}

int mac_addr_a2n(unsigned char *mac_addr, char *arg)
{
	int i;

	for (i = 0; i < ETH_ALEN ; i++) {
		int temp;
		char *cp = strchr(arg, ':');
		if (cp) {
			*cp = 0;
			cp++;
		}
		if (sscanf(arg, "%x", &temp) != 1)
			return -1;
		if (temp < 0 || temp > 255)
			return -1;

		mac_addr[i] = temp;
		if (!cp)
			break;
		arg = cp;
	}
	if (i < ETH_ALEN - 1)
		return -1;

	return 0;
}

int parse_hex_mask(char *hexmask, unsigned char **result, size_t *result_len,
		   unsigned char **mask)
{
	size_t len = strlen(hexmask) / 2;
	unsigned char *result_val;
	unsigned char *result_mask = NULL;

	int pos = 0;

	*result_len = 0;

	result_val = calloc(len + 2, 1);
	if (!result_val)
		goto error;
	*result = result_val;
	if (mask) {
		result_mask = calloc(DIV_ROUND_UP(len, 8) + 2, 1);
		if (!result_mask)
			goto error;
		*mask = result_mask;
	}

	while (1) {
		char *cp = strchr(hexmask, ':');
		if (cp) {
			*cp = 0;
			cp++;
		}

		if (result_mask && (strcmp(hexmask, "-") == 0 ||
				    strcmp(hexmask, "xx") == 0 ||
				    strcmp(hexmask, "--") == 0)) {
			/* skip this byte and leave mask bit unset */
		} else {
			int temp, mask_pos;
			char *end;

			temp = strtoul(hexmask, &end, 16);
			if (*end)
				goto error;
			if (temp < 0 || temp > 255)
				goto error;
			result_val[pos] = temp;

			mask_pos = pos / 8;
			if (result_mask)
				result_mask[mask_pos] |= 1 << (pos % 8);
		}

		(*result_len)++;
		pos++;

		if (!cp)
			break;
		hexmask = cp;
	}

	return 0;
 error:
	free(result_val);
	free(result_mask);
	return -1;
}

unsigned char *parse_hex(char *hex, size_t *outlen)
{
	unsigned char *result;

	if (parse_hex_mask(hex, &result, outlen, NULL))
		return NULL;
	return result;
}

static const char *ifmodes[NL80211_IFTYPE_MAX + 1] = {
	"unspecified",
	"IBSS",
	"managed",
	"AP",
	"AP/VLAN",
	"WDS",
	"monitor",
	"mesh point",
	"P2P-client",
	"P2P-GO",
	"P2P-device",
};

static char modebuf[100];

const char *iftype_name(enum nl80211_iftype iftype)
{
	if (iftype <= NL80211_IFTYPE_MAX && ifmodes[iftype])
		return ifmodes[iftype];
	sprintf(modebuf, "Unknown mode (%d)", iftype);
	return modebuf;
}

static const char *commands[NL80211_CMD_MAX + 1] = {
/*
 * sed 's/^\tNL80211_CMD_//;t n;d;:n s%^\([^=]*\),.*%\t[NL80211_CMD_\1] = \"\L\1\",%;t;d' nl80211.h
 */
	[NL80211_CMD_UNSPEC] = "unspec",
	[NL80211_CMD_GET_WIPHY] = "get_wiphy",
	[NL80211_CMD_SET_WIPHY] = "set_wiphy",
	[NL80211_CMD_NEW_WIPHY] = "new_wiphy",
	[NL80211_CMD_DEL_WIPHY] = "del_wiphy",
	[NL80211_CMD_GET_INTERFACE] = "get_interface",
	[NL80211_CMD_SET_INTERFACE] = "set_interface",
	[NL80211_CMD_NEW_INTERFACE] = "new_interface",
	[NL80211_CMD_DEL_INTERFACE] = "del_interface",
	[NL80211_CMD_GET_KEY] = "get_key",
	[NL80211_CMD_SET_KEY] = "set_key",
	[NL80211_CMD_NEW_KEY] = "new_key",
	[NL80211_CMD_DEL_KEY] = "del_key",
	[NL80211_CMD_GET_BEACON] = "get_beacon",
	[NL80211_CMD_SET_BEACON] = "set_beacon",
	[NL80211_CMD_START_AP] = "start_ap",
	[NL80211_CMD_STOP_AP] = "stop_ap",
	[NL80211_CMD_GET_STATION] = "get_station",
	[NL80211_CMD_SET_STATION] = "set_station",
	[NL80211_CMD_NEW_STATION] = "new_station",
	[NL80211_CMD_DEL_STATION] = "del_station",
	[NL80211_CMD_GET_MPATH] = "get_mpath",
	[NL80211_CMD_SET_MPATH] = "set_mpath",
	[NL80211_CMD_NEW_MPATH] = "new_mpath",
	[NL80211_CMD_DEL_MPATH] = "del_mpath",
	[NL80211_CMD_SET_BSS] = "set_bss",
	[NL80211_CMD_SET_REG] = "set_reg",
	[NL80211_CMD_REQ_SET_REG] = "req_set_reg",
	[NL80211_CMD_GET_MESH_CONFIG] = "get_mesh_config",
	[NL80211_CMD_SET_MESH_CONFIG] = "set_mesh_config",
	[NL80211_CMD_GET_REG] = "get_reg",
	[NL80211_CMD_GET_SCAN] = "get_scan",
	[NL80211_CMD_TRIGGER_SCAN] = "trigger_scan",
	[NL80211_CMD_NEW_SCAN_RESULTS] = "new_scan_results",
	[NL80211_CMD_SCAN_ABORTED] = "scan_aborted",
	[NL80211_CMD_REG_CHANGE] = "reg_change",
	[NL80211_CMD_AUTHENTICATE] = "authenticate",
	[NL80211_CMD_ASSOCIATE] = "associate",
	[NL80211_CMD_DEAUTHENTICATE] = "deauthenticate",
	[NL80211_CMD_DISASSOCIATE] = "disassociate",
	[NL80211_CMD_MICHAEL_MIC_FAILURE] = "michael_mic_failure",
	[NL80211_CMD_REG_BEACON_HINT] = "reg_beacon_hint",
	[NL80211_CMD_JOIN_IBSS] = "join_ibss",
	[NL80211_CMD_LEAVE_IBSS] = "leave_ibss",
	[NL80211_CMD_TESTMODE] = "testmode",
	[NL80211_CMD_CONNECT] = "connect",
	[NL80211_CMD_ROAM] = "roam",
	[NL80211_CMD_DISCONNECT] = "disconnect",
	[NL80211_CMD_SET_WIPHY_NETNS] = "set_wiphy_netns",
	[NL80211_CMD_GET_SURVEY] = "get_survey",
	[NL80211_CMD_NEW_SURVEY_RESULTS] = "new_survey_results",
	[NL80211_CMD_SET_PMKSA] = "set_pmksa",
	[NL80211_CMD_DEL_PMKSA] = "del_pmksa",
	[NL80211_CMD_FLUSH_PMKSA] = "flush_pmksa",
	[NL80211_CMD_REMAIN_ON_CHANNEL] = "remain_on_channel",
	[NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL] = "cancel_remain_on_channel",
	[NL80211_CMD_SET_TX_BITRATE_MASK] = "set_tx_bitrate_mask",
	[NL80211_CMD_REGISTER_FRAME] = "register_frame",
	[NL80211_CMD_FRAME] = "frame",
	[NL80211_CMD_FRAME_TX_STATUS] = "frame_tx_status",
	[NL80211_CMD_SET_POWER_SAVE] = "set_power_save",
	[NL80211_CMD_GET_POWER_SAVE] = "get_power_save",
	[NL80211_CMD_SET_CQM] = "set_cqm",
	[NL80211_CMD_NOTIFY_CQM] = "notify_cqm",
	[NL80211_CMD_SET_CHANNEL] = "set_channel",
	[NL80211_CMD_SET_WDS_PEER] = "set_wds_peer",
	[NL80211_CMD_FRAME_WAIT_CANCEL] = "frame_wait_cancel",
	[NL80211_CMD_JOIN_MESH] = "join_mesh",
	[NL80211_CMD_LEAVE_MESH] = "leave_mesh",
	[NL80211_CMD_UNPROT_DEAUTHENTICATE] = "unprot_deauthenticate",
	[NL80211_CMD_UNPROT_DISASSOCIATE] = "unprot_disassociate",
	[NL80211_CMD_NEW_PEER_CANDIDATE] = "new_peer_candidate",
	[NL80211_CMD_GET_WOWLAN] = "get_wowlan",
	[NL80211_CMD_SET_WOWLAN] = "set_wowlan",
	[NL80211_CMD_START_SCHED_SCAN] = "start_sched_scan",
	[NL80211_CMD_STOP_SCHED_SCAN] = "stop_sched_scan",
	[NL80211_CMD_SCHED_SCAN_RESULTS] = "sched_scan_results",
	[NL80211_CMD_SCHED_SCAN_STOPPED] = "sched_scan_stopped",
	[NL80211_CMD_SET_REKEY_OFFLOAD] = "set_rekey_offload",
	[NL80211_CMD_PMKSA_CANDIDATE] = "pmksa_candidate",
	[NL80211_CMD_TDLS_OPER] = "tdls_oper",
	[NL80211_CMD_TDLS_MGMT] = "tdls_mgmt",
	[NL80211_CMD_UNEXPECTED_FRAME] = "unexpected_frame",
	[NL80211_CMD_PROBE_CLIENT] = "probe_client",
	[NL80211_CMD_REGISTER_BEACONS] = "register_beacons",
	[NL80211_CMD_UNEXPECTED_4ADDR_FRAME] = "unexpected_4addr_frame",
	[NL80211_CMD_SET_NOACK_MAP] = "set_noack_map",
	[NL80211_CMD_CH_SWITCH_NOTIFY] = "ch_switch_notify",
	[NL80211_CMD_START_P2P_DEVICE] = "start_p2p_device",
	[NL80211_CMD_STOP_P2P_DEVICE] = "stop_p2p_device",
	[NL80211_CMD_CONN_FAILED] = "conn_failed",
	[NL80211_CMD_SET_MCAST_RATE] = "set_mcast_rate",
	[NL80211_CMD_SET_MAC_ACL] = "set_mac_acl",
	[NL80211_CMD_RADAR_DETECT] = "radar_detect",
	[NL80211_CMD_GET_PROTOCOL_FEATURES] = "get_protocol_features",
	[NL80211_CMD_UPDATE_FT_IES] = "update_ft_ies",
	[NL80211_CMD_FT_EVENT] = "ft_event",
	[NL80211_CMD_CRIT_PROTOCOL_START] = "crit_protocol_start",
	[NL80211_CMD_CRIT_PROTOCOL_STOP] = "crit_protocol_stop",
};

static char cmdbuf[100];

const char *command_name(enum nl80211_commands cmd)
{
	if (cmd <= NL80211_CMD_MAX && commands[cmd])
		return commands[cmd];
	sprintf(cmdbuf, "Unknown command (%d)", cmd);
	return cmdbuf;
}

int ieee80211_channel_to_frequency(int chan)
{
	if (chan < 14)
		return 2407 + chan * 5;

	if (chan == 14)
		return 2484;

	/* FIXME: dot11ChannelStartingFactor (802.11-2007 17.3.8.3.2) */
	return (chan + 1000) * 5;
}

int ieee80211_frequency_to_channel(int freq)
{
	if (freq == 2484)
		return 14;

	if (freq < 2484)
		return (freq - 2407) / 5;

	/* FIXME: dot11ChannelStartingFactor (802.11-2007 17.3.8.3.2) */
	if (freq < 45000)
		return freq/5 - 1000;

	if (freq >= 58320 && freq <= 64800)
		return (freq - 56160) / 2160;

	return 0;
}

void print_ssid_escaped(const uint8_t len, const uint8_t *data)
{
	int i;

	for (i = 0; i < len; i++) {
		if (isprint(data[i]) && data[i] != ' ' && data[i] != '\\')
			printf("%c", data[i]);
		else if (data[i] == ' ' &&
			 (i != 0 && i != len -1))
			printf(" ");
		else
			printf("\\x%.2x", data[i]);
	}
}

static int hex2num(char digit)
{
	if (!isxdigit(digit))
		return -1;
	if (isdigit(digit))
		return digit - '0';
	return tolower(digit) - 'a' + 10;
}

static int hex2byte(char *hex)
{
	int d1, d2;

	d1 = hex2num(hex[0]);
	if (d1 < 0)
		return -1;
	d2 = hex2num(hex[1]);
	if (d2 < 0)
		return -1;
	return (d1 << 4) | d2;
}

static char *hex2bin(char *hex, char *buf)
{
	char *result = buf;
	int d;

	while (hex[0]) {
		d = hex2byte(hex);
		if (d < 0)
			return NULL;
		buf[0] = d;
		buf++;
		hex += 2;
	}

	return result;
}

int parse_keys(struct nl_msg *msg, char **argv, int argc)
{
	struct nlattr *keys;
	int i = 0;
	bool have_default = false;
	char keybuf[13];

	if (!argc)
		return 1;

	NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);

	keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
	if (!keys)
		return -ENOBUFS;

	do {
		char *arg = *argv;
		int pos = 0, keylen;
		struct nlattr *key = nla_nest_start(msg, ++i);
		char *keydata;

		if (!key)
			return -ENOBUFS;

		if (arg[pos] == 'd') {
			NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
			pos++;
			if (arg[pos] == ':')
				pos++;
			have_default = true;
		}

		if (!isdigit(arg[pos]))
			goto explain;
		NLA_PUT_U8(msg, NL80211_KEY_IDX, arg[pos++] - '0');
		if (arg[pos++] != ':')
			goto explain;
		keydata = arg + pos;
		switch (strlen(keydata)) {
		case 10:
			keydata = hex2bin(keydata, keybuf);
		case 5:
			NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 0x000FAC01);
			keylen = 5;
			break;
		case 26:
			keydata = hex2bin(keydata, keybuf);
		case 13:
			NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 0x000FAC05);
			keylen = 13;
			break;
		default:
			goto explain;
		}

		if (!keydata)
			goto explain;

		NLA_PUT(msg, NL80211_KEY_DATA, keylen, keydata);

		argv++;
		argc--;

		/* one key should be TX key */
		if (!have_default && !argc)
			NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);

		nla_nest_end(msg, key);
	} while (argc);

	nla_nest_end(msg, keys);

	return 0;
 nla_put_failure:
	return -ENOBUFS;
 explain:
	fprintf(stderr, "key must be [d:]index:data where\n"
			"  'd:'     means default (transmit) key\n"
			"  'index:' is a single digit (0-3)\n"
			"  'data'   must be 5 or 13 ascii chars\n"
			"           or 10 or 26 hex digits\n"
			"for example: d:2:6162636465 is the same as d:2:abcde\n");
	return 2;
}

static void print_mcs_index(const __u8 *mcs)
{
	int mcs_bit, prev_bit = -2, prev_cont = 0;

	for (mcs_bit = 0; mcs_bit <= 76; mcs_bit++) {
		unsigned int mcs_octet = mcs_bit/8;
		unsigned int MCS_RATE_BIT = 1 << mcs_bit % 8;
		bool mcs_rate_idx_set;

		mcs_rate_idx_set = !!(mcs[mcs_octet] & MCS_RATE_BIT);

		if (!mcs_rate_idx_set)
			continue;

		if (prev_bit != mcs_bit - 1) {
			if (prev_bit != -2)
				printf("%d, ", prev_bit);
			else
				printf(" ");
			printf("%d", mcs_bit);
			prev_cont = 0;
		} else if (!prev_cont) {
			printf("-");
			prev_cont = 1;
		}

		prev_bit = mcs_bit;
	}

	if (prev_cont)
		printf("%d", prev_bit);
	printf("\n");
}

/*
 * There are only 4 possible values, we just use a case instead of computing it,
 * but technically this can also be computed through the formula:
 *
 * Max AMPDU length = (2 ^ (13 + exponent)) - 1 bytes
 */
static __u32 compute_ampdu_length(__u8 exponent)
{
	switch (exponent) {
	case 0: return 8191;  /* (2 ^(13 + 0)) -1 */
	case 1: return 16383; /* (2 ^(13 + 1)) -1 */
	case 2: return 32767; /* (2 ^(13 + 2)) -1 */
	case 3: return 65535; /* (2 ^(13 + 3)) -1 */
	default: return 0;
	}
}

static const char *print_ampdu_space(__u8 space)
{
	switch (space) {
	case 0: return "No restriction";
	case 1: return "1/4 usec";
	case 2: return "1/2 usec";
	case 3: return "1 usec";
	case 4: return "2 usec";
	case 5: return "4 usec";
	case 6: return "8 usec";
	case 7: return "16 usec";
	default:
		return "BUG (spacing more than 3 bits!)";
	}
}

void print_ampdu_length(__u8 exponent)
{
	__u32 max_ampdu_length;

	max_ampdu_length = compute_ampdu_length(exponent);

	if (max_ampdu_length) {
		printf("\t\tMaximum RX AMPDU length %d bytes (exponent: 0x0%02x)\n",
		       max_ampdu_length, exponent);
	} else {
		printf("\t\tMaximum RX AMPDU length: unrecognized bytes "
		       "(exponent: %d)\n", exponent);
	}
}

void print_ampdu_spacing(__u8 spacing)
{
	printf("\t\tMinimum RX AMPDU time spacing: %s (0x%02x)\n",
	       print_ampdu_space(spacing), spacing);
}

void print_ht_capability(__u16 cap)
{
#define PRINT_HT_CAP(_cond, _str) \
	do { \
		if (_cond) \
			printf("\t\t\t" _str "\n"); \
	} while (0)

	printf("\t\tCapabilities: 0x%02x\n", cap);

	PRINT_HT_CAP((cap & BIT(0)), "RX LDPC");
	PRINT_HT_CAP((cap & BIT(1)), "HT20/HT40");
	PRINT_HT_CAP(!(cap & BIT(1)), "HT20");

	PRINT_HT_CAP(((cap >> 2) & 0x3) == 0, "Static SM Power Save");
	PRINT_HT_CAP(((cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
	PRINT_HT_CAP(((cap >> 2) & 0x3) == 3, "SM Power Save disabled");

	PRINT_HT_CAP((cap & BIT(4)), "RX Greenfield");
	PRINT_HT_CAP((cap & BIT(5)), "RX HT20 SGI");
	PRINT_HT_CAP((cap & BIT(6)), "RX HT40 SGI");
	PRINT_HT_CAP((cap & BIT(7)), "TX STBC");

	PRINT_HT_CAP(((cap >> 8) & 0x3) == 0, "No RX STBC");
	PRINT_HT_CAP(((cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
	PRINT_HT_CAP(((cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
	PRINT_HT_CAP(((cap >> 8) & 0x3) == 3, "RX STBC 3-streams");

	PRINT_HT_CAP((cap & BIT(10)), "HT Delayed Block Ack");

	PRINT_HT_CAP(!(cap & BIT(11)), "Max AMSDU length: 3839 bytes");
	PRINT_HT_CAP((cap & BIT(11)), "Max AMSDU length: 7935 bytes");

	/*
	 * For beacons and probe response this would mean the BSS
	 * does or does not allow the usage of DSSS/CCK HT40.
	 * Otherwise it means the STA does or does not use
	 * DSSS/CCK HT40.
	 */
	PRINT_HT_CAP((cap & BIT(12)), "DSSS/CCK HT40");
	PRINT_HT_CAP(!(cap & BIT(12)), "No DSSS/CCK HT40");

	/* BIT(13) is reserved */

	PRINT_HT_CAP((cap & BIT(14)), "40 MHz Intolerant");

	PRINT_HT_CAP((cap & BIT(15)), "L-SIG TXOP protection");
#undef PRINT_HT_CAP
}

void print_ht_mcs(const __u8 *mcs)
{
	/* As defined in 7.3.2.57.4 Supported MCS Set field */
	unsigned int tx_max_num_spatial_streams, max_rx_supp_data_rate;
	bool tx_mcs_set_defined, tx_mcs_set_equal, tx_unequal_modulation;

	max_rx_supp_data_rate = (mcs[10] & ((mcs[11] & 0x3) << 8));
	tx_mcs_set_defined = !!(mcs[12] & (1 << 0));
	tx_mcs_set_equal = !(mcs[12] & (1 << 1));
	tx_max_num_spatial_streams = ((mcs[12] >> 2) & 3) + 1;
	tx_unequal_modulation = !!(mcs[12] & (1 << 4));

	if (max_rx_supp_data_rate)
		printf("\t\tHT Max RX data rate: %d Mbps\n", max_rx_supp_data_rate);
	/* XXX: else see 9.6.0e.5.3 how to get this I think */

	if (tx_mcs_set_defined) {
		if (tx_mcs_set_equal) {
			printf("\t\tHT TX/RX MCS rate indexes supported:");
			print_mcs_index(mcs);
		} else {
			printf("\t\tHT RX MCS rate indexes supported:");
			print_mcs_index(mcs);

			if (tx_unequal_modulation)
				printf("\t\tTX unequal modulation supported\n");
			else
				printf("\t\tTX unequal modulation not supported\n");

			printf("\t\tHT TX Max spatial streams: %d\n",
				tx_max_num_spatial_streams);

			printf("\t\tHT TX MCS rate indexes supported may differ\n");
		}
	} else {
		printf("\t\tHT RX MCS rate indexes supported:");
		print_mcs_index(mcs);
		printf("\t\tHT TX MCS rate indexes are undefined\n");
	}
}

void print_vht_info(__u32 capa, const __u8 *mcs)
{
	__u16 tmp;
	int i;

	printf("\t\tVHT Capabilities (0x%.8x):\n", capa);

#define PRINT_VHT_CAPA(_bit, _str) \
	do { \
		if (capa & BIT(_bit)) \
			printf("\t\t\t" _str "\n"); \
	} while (0)

	printf("\t\t\tMax MPDU length: ");
	switch (capa & 3) {
	case 0: printf("3895\n"); break;
	case 1: printf("7991\n"); break;
	case 2: printf("11454\n"); break;
	case 3: printf("(reserved)\n");
	}
	printf("\t\t\tSupported Channel Width: ");
	switch ((capa >> 2) & 3) {
	case 0: printf("neither 160 nor 80+80\n"); break;
	case 1: printf("160 MHz\n"); break;
	case 2: printf("160 MHz, 80+80 MHz\n"); break;
	case 3: printf("(reserved)\n");
	}
	PRINT_VHT_CAPA(4, "RX LDPC");
	PRINT_VHT_CAPA(5, "short GI (80 MHz)");
	PRINT_VHT_CAPA(6, "short GI (160/80+80 MHz)");
	PRINT_VHT_CAPA(7, "TX STBC");
	/* RX STBC */
	PRINT_VHT_CAPA(11, "SU Beamformer");
	PRINT_VHT_CAPA(12, "SU Beamformee");
	/* compressed steering */
	/* # of sounding dimensions */
	PRINT_VHT_CAPA(19, "MU Beamformer");
	PRINT_VHT_CAPA(20, "MU Beamformee");
	PRINT_VHT_CAPA(21, "VHT TXOP PS");
	PRINT_VHT_CAPA(22, "+HTC-VHT");
	/* max A-MPDU */
	/* VHT link adaptation */
	PRINT_VHT_CAPA(29, "RX antenna pattern consistency");
	PRINT_VHT_CAPA(30, "TX antenna pattern consistency");

	printf("\t\tVHT RX MCS set:\n");
	tmp = mcs[0] | (mcs[1] << 8);
	for (i = 1; i <= 8; i++) {
		printf("\t\t\t%d streams: ", i);
		switch ((tmp >> ((i-1)*2) ) & 3) {
		case 0: printf("MCS 0-7\n"); break;
		case 1: printf("MCS 0-8\n"); break;
		case 2: printf("MCS 0-9\n"); break;
		case 3: printf("not supported\n"); break;
		}
	}
	tmp = mcs[2] | (mcs[3] << 8);
	printf("\t\tVHT RX highest supported: %d Mbps\n", tmp & 0x1fff);

	printf("\t\tVHT TX MCS set:\n");
	tmp = mcs[4] | (mcs[5] << 8);
	for (i = 1; i <= 8; i++) {
		printf("\t\t\t%d streams: ", i);
		switch ((tmp >> ((i-1)*2) ) & 3) {
		case 0: printf("MCS 0-7\n"); break;
		case 1: printf("MCS 0-8\n"); break;
		case 2: printf("MCS 0-9\n"); break;
		case 3: printf("not supported\n"); break;
		}
	}
	tmp = mcs[6] | (mcs[7] << 8);
	printf("\t\tVHT TX highest supported: %d Mbps\n", tmp & 0x1fff);
}
Commit	Line	Data
748f8489	1	#include <ctype.h>
51e9bd80 JB	2	#include <netlink/attr.h>
	3	#include <errno.h>
	4	#include <stdbool.h>
3d1e8704	5	#include "iw.h"
f5f7b1d0	6	#include "nl80211.h"
3d1e8704	7
febeb0c0	8	void mac_addr_n2a(char mac_addr, unsigned char arg)
3d1e8704	9	{
53e5ce7a	10	int i, l;
3d1e8704 LCC	11
	12	l = 0;
	13	for (i = 0; i < ETH_ALEN ; i++) {
	14	if (i == 0) {
53e5ce7a	15	sprintf(mac_addr+l, "%02x", arg[i]);
3d1e8704 LCC	16	l += 2;
3d1e8704 LCC	17	} else {
53e5ce7a	18	sprintf(mac_addr+l, ":%02x", arg[i]);
3d1e8704 LCC	19	l += 3;
	20	}
	21	}
3d1e8704 LCC	22	}
	23
	24	int mac_addr_a2n(unsigned char mac_addr, char arg)
	25	{
	26	int i;
	27
	28	for (i = 0; i < ETH_ALEN ; i++) {
	29	int temp;
	30	char *cp = strchr(arg, ':');
	31	if (cp) {
	32	*cp = 0;
	33	cp++;
	34	}
	35	if (sscanf(arg, "%x", &temp) != 1)
	36	return -1;
	37	if (temp < 0 \|\| temp > 255)
	38	return -1;
	39
	40	mac_addr[i] = temp;
	41	if (!cp)
	42	break;
	43	arg = cp;
	44	}
	45	if (i < ETH_ALEN - 1)
	46	return -1;
	47
	48	return 0;
	49	}
541ef425	50
3ff24563 JB	51	int parse_hex_mask(char hexmask, unsigned char result, size_t result_len,
3ff24563 JB	52	unsigned char **mask)
236d4191	53	{
3ff24563 JB	54	size_t len = strlen(hexmask) / 2;
	55	unsigned char *result_val;
	56	unsigned char *result_mask = NULL;
	57
236d4191 JB	58	int pos = 0;
236d4191 JB	59
3ff24563	60	*result_len = 0;
236d4191	61
3ff24563 JB	62	result_val = calloc(len + 2, 1);
	63	if (!result_val)
	64	goto error;
	65	*result = result_val;
	66	if (mask) {
	67	result_mask = calloc(DIV_ROUND_UP(len, 8) + 2, 1);
	68	if (!result_mask)
	69	goto error;
	70	*mask = result_mask;
	71	}
236d4191 JB	72
236d4191 JB	73	while (1) {
3ff24563	74	char *cp = strchr(hexmask, ':');
236d4191 JB	75	if (cp) {
	76	*cp = 0;
	77	cp++;
	78	}
236d4191	79
3ff24563 JB	80	if (result_mask && (strcmp(hexmask, "-") == 0 \|\|
	81	strcmp(hexmask, "xx") == 0 \|\|
	82	strcmp(hexmask, "--") == 0)) {
	83	/* skip this byte and leave mask bit unset */
	84	} else {
	85	int temp, mask_pos;
	86	char *end;
	87
	88	temp = strtoul(hexmask, &end, 16);
	89	if (*end)
	90	goto error;
	91	if (temp < 0 \|\| temp > 255)
	92	goto error;
	93	result_val[pos] = temp;
	94
	95	mask_pos = pos / 8;
	96	if (result_mask)
	97	result_mask[mask_pos] \|= 1 << (pos % 8);
	98	}
	99
	100	(*result_len)++;
	101	pos++;
236d4191	102
236d4191 JB	103	if (!cp)
236d4191 JB	104	break;
3ff24563	105	hexmask = cp;
236d4191 JB	106	}
236d4191 JB	107
3ff24563	108	return 0;
236d4191	109	error:
3ff24563 JB	110	free(result_val);
	111	free(result_mask);
	112	return -1;
	113	}
	114
	115	unsigned char parse_hex(char hex, size_t *outlen)
	116	{
	117	unsigned char *result;
	118
	119	if (parse_hex_mask(hex, &result, outlen, NULL))
	120	return NULL;
	121	return result;
236d4191 JB	122	}
236d4191 JB	123
541ef425 JB	124	static const char *ifmodes[NL80211_IFTYPE_MAX + 1] = {
	125	"unspecified",
	126	"IBSS",
34e78ed0	127	"managed",
541ef425	128	"AP",
34e78ed0	129	"AP/VLAN",
541ef425	130	"WDS",
34e78ed0	131	"monitor",
a4464243 JB	132	"mesh point",
	133	"P2P-client",
	134	"P2P-GO",
add40bbd	135	"P2P-device",
541ef425 JB	136	};
	137
	138	static char modebuf[100];
	139
	140	const char *iftype_name(enum nl80211_iftype iftype)
	141	{
a66b3a35	142	if (iftype <= NL80211_IFTYPE_MAX && ifmodes[iftype])
541ef425 JB	143	return ifmodes[iftype];
	144	sprintf(modebuf, "Unknown mode (%d)", iftype);
	145	return modebuf;
	146	}
379f8397	147
9990c1e9	148	static const char *commands[NL80211_CMD_MAX + 1] = {
02aef469 JB	149	/*
	150	* sed 's/^\tNL80211_CMD_//;t n;d;:n s%^\([^=]\),.%\t[NL80211_CMD_\1] = \"\L\1\",%;t;d' nl80211.h
	151	*/
	152	[NL80211_CMD_UNSPEC] = "unspec",
06339499 JB	153	[NL80211_CMD_GET_WIPHY] = "get_wiphy",
	154	[NL80211_CMD_SET_WIPHY] = "set_wiphy",
	155	[NL80211_CMD_NEW_WIPHY] = "new_wiphy",
	156	[NL80211_CMD_DEL_WIPHY] = "del_wiphy",
	157	[NL80211_CMD_GET_INTERFACE] = "get_interface",
	158	[NL80211_CMD_SET_INTERFACE] = "set_interface",
	159	[NL80211_CMD_NEW_INTERFACE] = "new_interface",
	160	[NL80211_CMD_DEL_INTERFACE] = "del_interface",
	161	[NL80211_CMD_GET_KEY] = "get_key",
	162	[NL80211_CMD_SET_KEY] = "set_key",
	163	[NL80211_CMD_NEW_KEY] = "new_key",
	164	[NL80211_CMD_DEL_KEY] = "del_key",
	165	[NL80211_CMD_GET_BEACON] = "get_beacon",
	166	[NL80211_CMD_SET_BEACON] = "set_beacon",
02aef469 JB	167	[NL80211_CMD_START_AP] = "start_ap",
02aef469 JB	168	[NL80211_CMD_STOP_AP] = "stop_ap",
06339499 JB	169	[NL80211_CMD_GET_STATION] = "get_station",
	170	[NL80211_CMD_SET_STATION] = "set_station",
	171	[NL80211_CMD_NEW_STATION] = "new_station",
	172	[NL80211_CMD_DEL_STATION] = "del_station",
	173	[NL80211_CMD_GET_MPATH] = "get_mpath",
	174	[NL80211_CMD_SET_MPATH] = "set_mpath",
	175	[NL80211_CMD_NEW_MPATH] = "new_mpath",
	176	[NL80211_CMD_DEL_MPATH] = "del_mpath",
	177	[NL80211_CMD_SET_BSS] = "set_bss",
	178	[NL80211_CMD_SET_REG] = "set_reg",
02aef469 JB	179	[NL80211_CMD_REQ_SET_REG] = "req_set_reg",
	180	[NL80211_CMD_GET_MESH_CONFIG] = "get_mesh_config",
	181	[NL80211_CMD_SET_MESH_CONFIG] = "set_mesh_config",
06339499 JB	182	[NL80211_CMD_GET_REG] = "get_reg",
	183	[NL80211_CMD_GET_SCAN] = "get_scan",
	184	[NL80211_CMD_TRIGGER_SCAN] = "trigger_scan",
	185	[NL80211_CMD_NEW_SCAN_RESULTS] = "new_scan_results",
	186	[NL80211_CMD_SCAN_ABORTED] = "scan_aborted",
	187	[NL80211_CMD_REG_CHANGE] = "reg_change",
	188	[NL80211_CMD_AUTHENTICATE] = "authenticate",
	189	[NL80211_CMD_ASSOCIATE] = "associate",
	190	[NL80211_CMD_DEAUTHENTICATE] = "deauthenticate",
	191	[NL80211_CMD_DISASSOCIATE] = "disassociate",
	192	[NL80211_CMD_MICHAEL_MIC_FAILURE] = "michael_mic_failure",
	193	[NL80211_CMD_REG_BEACON_HINT] = "reg_beacon_hint",
	194	[NL80211_CMD_JOIN_IBSS] = "join_ibss",
	195	[NL80211_CMD_LEAVE_IBSS] = "leave_ibss",
	196	[NL80211_CMD_TESTMODE] = "testmode",
	197	[NL80211_CMD_CONNECT] = "connect",
	198	[NL80211_CMD_ROAM] = "roam",
	199	[NL80211_CMD_DISCONNECT] = "disconnect",
	200	[NL80211_CMD_SET_WIPHY_NETNS] = "set_wiphy_netns",
	201	[NL80211_CMD_GET_SURVEY] = "get_survey",
02aef469	202	[NL80211_CMD_NEW_SURVEY_RESULTS] = "new_survey_results",
06339499 JB	203	[NL80211_CMD_SET_PMKSA] = "set_pmksa",
	204	[NL80211_CMD_DEL_PMKSA] = "del_pmksa",
	205	[NL80211_CMD_FLUSH_PMKSA] = "flush_pmksa",
	206	[NL80211_CMD_REMAIN_ON_CHANNEL] = "remain_on_channel",
	207	[NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL] = "cancel_remain_on_channel",
	208	[NL80211_CMD_SET_TX_BITRATE_MASK] = "set_tx_bitrate_mask",
02aef469 JB	209	[NL80211_CMD_REGISTER_FRAME] = "register_frame",
	210	[NL80211_CMD_FRAME] = "frame",
	211	[NL80211_CMD_FRAME_TX_STATUS] = "frame_tx_status",
	212	[NL80211_CMD_SET_POWER_SAVE] = "set_power_save",
	213	[NL80211_CMD_GET_POWER_SAVE] = "get_power_save",
	214	[NL80211_CMD_SET_CQM] = "set_cqm",
	215	[NL80211_CMD_NOTIFY_CQM] = "notify_cqm",
7b96e9e2	216	[NL80211_CMD_SET_CHANNEL] = "set_channel",
dcf57038 JB	217	[NL80211_CMD_SET_WDS_PEER] = "set_wds_peer",
	218	[NL80211_CMD_FRAME_WAIT_CANCEL] = "frame_wait_cancel",
	219	[NL80211_CMD_JOIN_MESH] = "join_mesh",
	220	[NL80211_CMD_LEAVE_MESH] = "leave_mesh",
02aef469 JB	221	[NL80211_CMD_UNPROT_DEAUTHENTICATE] = "unprot_deauthenticate",
	222	[NL80211_CMD_UNPROT_DISASSOCIATE] = "unprot_disassociate",
	223	[NL80211_CMD_NEW_PEER_CANDIDATE] = "new_peer_candidate",
	224	[NL80211_CMD_GET_WOWLAN] = "get_wowlan",
	225	[NL80211_CMD_SET_WOWLAN] = "set_wowlan",
	226	[NL80211_CMD_START_SCHED_SCAN] = "start_sched_scan",
	227	[NL80211_CMD_STOP_SCHED_SCAN] = "stop_sched_scan",
	228	[NL80211_CMD_SCHED_SCAN_RESULTS] = "sched_scan_results",
	229	[NL80211_CMD_SCHED_SCAN_STOPPED] = "sched_scan_stopped",
850ab15d	230	[NL80211_CMD_SET_REKEY_OFFLOAD] = "set_rekey_offload",
02aef469 JB	231	[NL80211_CMD_PMKSA_CANDIDATE] = "pmksa_candidate",
	232	[NL80211_CMD_TDLS_OPER] = "tdls_oper",
	233	[NL80211_CMD_TDLS_MGMT] = "tdls_mgmt",
	234	[NL80211_CMD_UNEXPECTED_FRAME] = "unexpected_frame",
	235	[NL80211_CMD_PROBE_CLIENT] = "probe_client",
	236	[NL80211_CMD_REGISTER_BEACONS] = "register_beacons",
	237	[NL80211_CMD_UNEXPECTED_4ADDR_FRAME] = "unexpected_4addr_frame",
	238	[NL80211_CMD_SET_NOACK_MAP] = "set_noack_map",
	239	[NL80211_CMD_CH_SWITCH_NOTIFY] = "ch_switch_notify",
65d07957 JB	240	[NL80211_CMD_START_P2P_DEVICE] = "start_p2p_device",
	241	[NL80211_CMD_STOP_P2P_DEVICE] = "stop_p2p_device",
	242	[NL80211_CMD_CONN_FAILED] = "conn_failed",
240aa0ef JB	243	[NL80211_CMD_SET_MCAST_RATE] = "set_mcast_rate",
	244	[NL80211_CMD_SET_MAC_ACL] = "set_mac_acl",
	245	[NL80211_CMD_RADAR_DETECT] = "radar_detect",
	246	[NL80211_CMD_GET_PROTOCOL_FEATURES] = "get_protocol_features",
	247	[NL80211_CMD_UPDATE_FT_IES] = "update_ft_ies",
	248	[NL80211_CMD_FT_EVENT] = "ft_event",
	249	[NL80211_CMD_CRIT_PROTOCOL_START] = "crit_protocol_start",
	250	[NL80211_CMD_CRIT_PROTOCOL_STOP] = "crit_protocol_stop",
9990c1e9 MH	251	};
	252
	253	static char cmdbuf[100];
	254
	255	const char *command_name(enum nl80211_commands cmd)
	256	{
73780397	257	if (cmd <= NL80211_CMD_MAX && commands[cmd])
9990c1e9 MH	258	return commands[cmd];
	259	sprintf(cmdbuf, "Unknown command (%d)", cmd);
	260	return cmdbuf;
	261	}
	262
379f8397 JB	263	int ieee80211_channel_to_frequency(int chan)
	264	{
	265	if (chan < 14)
	266	return 2407 + chan * 5;
	267
	268	if (chan == 14)
	269	return 2484;
	270
	271	/* FIXME: dot11ChannelStartingFactor (802.11-2007 17.3.8.3.2) */
	272	return (chan + 1000) * 5;
	273	}
	274
	275	int ieee80211_frequency_to_channel(int freq)
	276	{
	277	if (freq == 2484)
	278	return 14;
	279
	280	if (freq < 2484)
	281	return (freq - 2407) / 5;
	282
	283	/* FIXME: dot11ChannelStartingFactor (802.11-2007 17.3.8.3.2) */
d56e86bc VK	284	if (freq < 45000)
	285	return freq/5 - 1000;
	286
	287	if (freq >= 58320 && freq <= 64800)
	288	return (freq - 56160) / 2160;
	289
	290	return 0;
379f8397	291	}
748f8489 JB	292
	293	void print_ssid_escaped(const uint8_t len, const uint8_t *data)
	294	{
	295	int i;
	296
	297	for (i = 0; i < len; i++) {
3f612733	298	if (isprint(data[i]) && data[i] != ' ' && data[i] != '\\')
748f8489	299	printf("%c", data[i]);
3f612733 JB	300	else if (data[i] == ' ' &&
	301	(i != 0 && i != len -1))
	302	printf(" ");
748f8489 JB	303	else
	304	printf("\\x%.2x", data[i]);
	305	}
	306	}
51e9bd80 JB	307
	308	static int hex2num(char digit)
	309	{
	310	if (!isxdigit(digit))
	311	return -1;
	312	if (isdigit(digit))
	313	return digit - '0';
	314	return tolower(digit) - 'a' + 10;
	315	}
	316
	317	static int hex2byte(char *hex)
	318	{
	319	int d1, d2;
	320
	321	d1 = hex2num(hex[0]);
	322	if (d1 < 0)
	323	return -1;
	324	d2 = hex2num(hex[1]);
	325	if (d2 < 0)
	326	return -1;
	327	return (d1 << 4) \| d2;
	328	}
	329
	330	static char hex2bin(char hex, char *buf)
	331	{
	332	char *result = buf;
	333	int d;
	334
	335	while (hex[0]) {
	336	d = hex2byte(hex);
	337	if (d < 0)
	338	return NULL;
	339	buf[0] = d;
	340	buf++;
	341	hex += 2;
	342	}
	343
	344	return result;
	345	}
	346
	347	int parse_keys(struct nl_msg msg, char *argv, int argc)
	348	{
	349	struct nlattr *keys;
	350	int i = 0;
041581ce	351	bool have_default = false;
51e9bd80 JB	352	char keybuf[13];
	353
	354	if (!argc)
	355	return 1;
	356
	357	NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
	358
	359	keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
	360	if (!keys)
	361	return -ENOBUFS;
	362
	363	do {
	364	char arg = argv;
	365	int pos = 0, keylen;
	366	struct nlattr *key = nla_nest_start(msg, ++i);
	367	char *keydata;
	368
	369	if (!key)
	370	return -ENOBUFS;
	371
	372	if (arg[pos] == 'd') {
	373	NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
	374	pos++;
	375	if (arg[pos] == ':')
	376	pos++;
041581ce	377	have_default = true;
51e9bd80 JB	378	}
	379
	380	if (!isdigit(arg[pos]))
	381	goto explain;
	382	NLA_PUT_U8(msg, NL80211_KEY_IDX, arg[pos++] - '0');
	383	if (arg[pos++] != ':')
	384	goto explain;
	385	keydata = arg + pos;
	386	switch (strlen(keydata)) {
	387	case 10:
	388	keydata = hex2bin(keydata, keybuf);
	389	case 5:
	390	NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 0x000FAC01);
	391	keylen = 5;
	392	break;
	393	case 26:
	394	keydata = hex2bin(keydata, keybuf);
	395	case 13:
	396	NLA_PUT_U32(msg, NL80211_KEY_CIPHER, 0x000FAC05);
	397	keylen = 13;
	398	break;
	399	default:
	400	goto explain;
	401	}
	402
	403	if (!keydata)
	404	goto explain;
	405
	406	NLA_PUT(msg, NL80211_KEY_DATA, keylen, keydata);
	407
51e9bd80 JB	408	argv++;
51e9bd80 JB	409	argc--;
041581ce JB	410
	411	/* one key should be TX key */
	412	if (!have_default && !argc)
	413	NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
	414
	415	nla_nest_end(msg, key);
51e9bd80 JB	416	} while (argc);
	417
	418	nla_nest_end(msg, keys);
	419
	420	return 0;
	421	nla_put_failure:
	422	return -ENOBUFS;
	423	explain:
	424	fprintf(stderr, "key must be [d:]index:data where\n"
	425	" 'd:' means default (transmit) key\n"
	426	" 'index:' is a single digit (0-3)\n"
	427	" 'data' must be 5 or 13 ascii chars\n"
	428	" or 10 or 26 hex digits\n"
	429	"for example: d:2:6162636465 is the same as d:2:abcde\n");
	430	return 2;
	431	}
deb3501c	432
7ddfb679	433	static void print_mcs_index(const __u8 *mcs)
deb3501c	434	{
9fea9777	435	int mcs_bit, prev_bit = -2, prev_cont = 0;
04953e90 JB	436
	437	for (mcs_bit = 0; mcs_bit <= 76; mcs_bit++) {
	438	unsigned int mcs_octet = mcs_bit/8;
	439	unsigned int MCS_RATE_BIT = 1 << mcs_bit % 8;
	440	bool mcs_rate_idx_set;
	441
	442	mcs_rate_idx_set = !!(mcs[mcs_octet] & MCS_RATE_BIT);
	443
	444	if (!mcs_rate_idx_set)
	445	continue;
	446
	447	if (prev_bit != mcs_bit - 1) {
	448	if (prev_bit != -2)
	449	printf("%d, ", prev_bit);
	450	else
	451	printf(" ");
	452	printf("%d", mcs_bit);
	453	prev_cont = 0;
	454	} else if (!prev_cont) {
	455	printf("-");
	456	prev_cont = 1;
	457	}
	458
	459	prev_bit = mcs_bit;
	460	}
deb3501c	461
04953e90 JB	462	if (prev_cont)
	463	printf("%d", prev_bit);
	464	printf("\n");
deb3501c	465	}
0950993f LR	466
	467	/*
	468	* There are only 4 possible values, we just use a case instead of computing it,
	469	* but technically this can also be computed through the formula:
	470	*
	471	* Max AMPDU length = (2 ^ (13 + exponent)) - 1 bytes
	472	*/
	473	static __u32 compute_ampdu_length(__u8 exponent)
	474	{
	475	switch (exponent) {
	476	case 0: return 8191; /* (2 ^(13 + 0)) -1 */
	477	case 1: return 16383; /* (2 ^(13 + 1)) -1 */
	478	case 2: return 32767; /* (2 ^(13 + 2)) -1 */
	479	case 3: return 65535; /* (2 ^(13 + 3)) -1 */
	480	default: return 0;
	481	}
	482	}
	483
	484	static const char *print_ampdu_space(__u8 space)
	485	{
	486	switch (space) {
	487	case 0: return "No restriction";
	488	case 1: return "1/4 usec";
	489	case 2: return "1/2 usec";
	490	case 3: return "1 usec";
	491	case 4: return "2 usec";
	492	case 5: return "4 usec";
	493	case 6: return "8 usec";
	494	case 7: return "16 usec";
	495	default:
7ae93cd5	496	return "BUG (spacing more than 3 bits!)";
0950993f LR	497	}
	498	}
	499
	500	void print_ampdu_length(__u8 exponent)
	501	{
04953e90	502	__u32 max_ampdu_length;
0950993f LR	503
	504	max_ampdu_length = compute_ampdu_length(exponent);
	505
	506	if (max_ampdu_length) {
	507	printf("\t\tMaximum RX AMPDU length %d bytes (exponent: 0x0%02x)\n",
	508	max_ampdu_length, exponent);
3f362f8b	509	} else {
0950993f LR	510	printf("\t\tMaximum RX AMPDU length: unrecognized bytes "
	511	"(exponent: %d)\n", exponent);
	512	}
	513	}
	514
	515	void print_ampdu_spacing(__u8 spacing)
	516	{
3f362f8b NB	517	printf("\t\tMinimum RX AMPDU time spacing: %s (0x%02x)\n",
3f362f8b NB	518	print_ampdu_space(spacing), spacing);
0950993f	519	}
357c1a5d LR	520
	521	void print_ht_capability(__u16 cap)
	522	{
	523	#define PRINT_HT_CAP(_cond, _str) \
	524	do { \
	525	if (_cond) \
	526	printf("\t\t\t" _str "\n"); \
	527	} while (0)
	528
	529	printf("\t\tCapabilities: 0x%02x\n", cap);
	530
028c0de5	531	PRINT_HT_CAP((cap & BIT(0)), "RX LDPC");
357c1a5d LR	532	PRINT_HT_CAP((cap & BIT(1)), "HT20/HT40");
	533	PRINT_HT_CAP(!(cap & BIT(1)), "HT20");
	534
	535	PRINT_HT_CAP(((cap >> 2) & 0x3) == 0, "Static SM Power Save");
	536	PRINT_HT_CAP(((cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
	537	PRINT_HT_CAP(((cap >> 2) & 0x3) == 3, "SM Power Save disabled");
	538
	539	PRINT_HT_CAP((cap & BIT(4)), "RX Greenfield");
	540	PRINT_HT_CAP((cap & BIT(5)), "RX HT20 SGI");
	541	PRINT_HT_CAP((cap & BIT(6)), "RX HT40 SGI");
	542	PRINT_HT_CAP((cap & BIT(7)), "TX STBC");
	543
	544	PRINT_HT_CAP(((cap >> 8) & 0x3) == 0, "No RX STBC");
	545	PRINT_HT_CAP(((cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
	546	PRINT_HT_CAP(((cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
	547	PRINT_HT_CAP(((cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
	548
	549	PRINT_HT_CAP((cap & BIT(10)), "HT Delayed Block Ack");
	550
c79c7464 CL	551	PRINT_HT_CAP(!(cap & BIT(11)), "Max AMSDU length: 3839 bytes");
c79c7464 CL	552	PRINT_HT_CAP((cap & BIT(11)), "Max AMSDU length: 7935 bytes");
357c1a5d LR	553
	554	/*
	555	* For beacons and probe response this would mean the BSS
	556	* does or does not allow the usage of DSSS/CCK HT40.
	557	* Otherwise it means the STA does or does not use
	558	* DSSS/CCK HT40.
	559	*/
	560	PRINT_HT_CAP((cap & BIT(12)), "DSSS/CCK HT40");
	561	PRINT_HT_CAP(!(cap & BIT(12)), "No DSSS/CCK HT40");
	562
	563	/* BIT(13) is reserved */
	564
	565	PRINT_HT_CAP((cap & BIT(14)), "40 MHz Intolerant");
	566
	567	PRINT_HT_CAP((cap & BIT(15)), "L-SIG TXOP protection");
	568	#undef PRINT_HT_CAP
	569	}
7ddfb679 JB	570
	571	void print_ht_mcs(const __u8 *mcs)
	572	{
	573	/* As defined in 7.3.2.57.4 Supported MCS Set field */
	574	unsigned int tx_max_num_spatial_streams, max_rx_supp_data_rate;
	575	bool tx_mcs_set_defined, tx_mcs_set_equal, tx_unequal_modulation;
	576
012f8bf3	577	max_rx_supp_data_rate = (mcs[10] & ((mcs[11] & 0x3) << 8));
7ddfb679 JB	578	tx_mcs_set_defined = !!(mcs[12] & (1 << 0));
	579	tx_mcs_set_equal = !(mcs[12] & (1 << 1));
	580	tx_max_num_spatial_streams = ((mcs[12] >> 2) & 3) + 1;
	581	tx_unequal_modulation = !!(mcs[12] & (1 << 4));
	582
	583	if (max_rx_supp_data_rate)
	584	printf("\t\tHT Max RX data rate: %d Mbps\n", max_rx_supp_data_rate);
	585	/* XXX: else see 9.6.0e.5.3 how to get this I think */
	586
	587	if (tx_mcs_set_defined) {
	588	if (tx_mcs_set_equal) {
2a79feb0	589	printf("\t\tHT TX/RX MCS rate indexes supported:");
7ddfb679 JB	590	print_mcs_index(mcs);
	591	} else {
	592	printf("\t\tHT RX MCS rate indexes supported:");
	593	print_mcs_index(mcs);
	594
	595	if (tx_unequal_modulation)
	596	printf("\t\tTX unequal modulation supported\n");
	597	else
	598	printf("\t\tTX unequal modulation not supported\n");
	599
	600	printf("\t\tHT TX Max spatial streams: %d\n",
	601	tx_max_num_spatial_streams);
	602
	603	printf("\t\tHT TX MCS rate indexes supported may differ\n");
	604	}
	605	} else {
	606	printf("\t\tHT RX MCS rate indexes supported:");
	607	print_mcs_index(mcs);
089bb35d	608	printf("\t\tHT TX MCS rate indexes are undefined\n");
7ddfb679 JB	609	}
7ddfb679 JB	610	}
54eb1613 JB	611
	612	void print_vht_info(__u32 capa, const __u8 *mcs)
	613	{
	614	__u16 tmp;
	615	int i;
	616
	617	printf("\t\tVHT Capabilities (0x%.8x):\n", capa);
	618
	619	#define PRINT_VHT_CAPA(_bit, _str) \
	620	do { \
	621	if (capa & BIT(_bit)) \
	622	printf("\t\t\t" _str "\n"); \
	623	} while (0)
	624
	625	printf("\t\t\tMax MPDU length: ");
	626	switch (capa & 3) {
	627	case 0: printf("3895\n"); break;
	628	case 1: printf("7991\n"); break;
	629	case 2: printf("11454\n"); break;
	630	case 3: printf("(reserved)\n");
	631	}
	632	printf("\t\t\tSupported Channel Width: ");
	633	switch ((capa >> 2) & 3) {
	634	case 0: printf("neither 160 nor 80+80\n"); break;
	635	case 1: printf("160 MHz\n"); break;
	636	case 2: printf("160 MHz, 80+80 MHz\n"); break;
	637	case 3: printf("(reserved)\n");
	638	}
	639	PRINT_VHT_CAPA(4, "RX LDPC");
	640	PRINT_VHT_CAPA(5, "short GI (80 MHz)");
	641	PRINT_VHT_CAPA(6, "short GI (160/80+80 MHz)");
	642	PRINT_VHT_CAPA(7, "TX STBC");
	643	/* RX STBC */
	644	PRINT_VHT_CAPA(11, "SU Beamformer");
	645	PRINT_VHT_CAPA(12, "SU Beamformee");
	646	/* compressed steering */
	647	/* # of sounding dimensions */
	648	PRINT_VHT_CAPA(19, "MU Beamformer");
	649	PRINT_VHT_CAPA(20, "MU Beamformee");
	650	PRINT_VHT_CAPA(21, "VHT TXOP PS");
	651	PRINT_VHT_CAPA(22, "+HTC-VHT");
	652	/* max A-MPDU */
	653	/* VHT link adaptation */
	654	PRINT_VHT_CAPA(29, "RX antenna pattern consistency");
	655	PRINT_VHT_CAPA(30, "TX antenna pattern consistency");
	656
	657	printf("\t\tVHT RX MCS set:\n");
	658	tmp = mcs[0] \| (mcs[1] << 8);
	659	for (i = 1; i <= 8; i++) {
	660	printf("\t\t\t%d streams: ", i);
	661	switch ((tmp >> ((i-1)*2) ) & 3) {
	662	case 0: printf("MCS 0-7\n"); break;
	663	case 1: printf("MCS 0-8\n"); break;
	664	case 2: printf("MCS 0-9\n"); break;
	665	case 3: printf("not supported\n"); break;
	666	}
	667	}
	668	tmp = mcs[2] \| (mcs[3] << 8);
	669	printf("\t\tVHT RX highest supported: %d Mbps\n", tmp & 0x1fff);
	670
	671	printf("\t\tVHT TX MCS set:\n");
	672	tmp = mcs[4] \| (mcs[5] << 8);
	673	for (i = 1; i <= 8; i++) {
	674	printf("\t\t\t%d streams: ", i);
675	switch ((tmp >> ((i-1)*2) ) & 3) {
676	case 0: printf("MCS 0-7\n"); break;
677	case 1: printf("MCS 0-8\n"); break;
678	case 2: printf("MCS 0-9\n"); break;
679	case 3: printf("not supported\n"); break;
680	}
681	}
682	tmp = mcs[6] \| (mcs[7] << 8);
683	printf("\t\tVHT TX highest supported: %d Mbps\n", tmp & 0x1fff);
684	}