wpa_supplicant_8: Add driver cmd support

Change-Id: I36ec620c73872c5a93d8ce1b95431d029cf5c448
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>

3 files changed, 491 insertions, 0 deletions

diff --git a/bcm4329/wpa_supplicant_8_lib/Android.mk b/bcm4329/wpa_supplicant_8_lib/Android.mk
new file mode 100644
index 0000000..1992a9d
--- /dev/null
+++ b/bcm4329/wpa_supplicant_8_lib/Android.mk
@@ -0,0 +1,58 @@
+#
+# Copyright (C) 2008 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+LOCAL_PATH := $(call my-dir)
+
+ifeq ($(WPA_SUPPLICANT_VERSION),VER_0_8_X)
+
+ifneq ($(TARGET_SIMULATOR),true)
+
+ifneq ($(BOARD_WPA_SUPPLICANT_DRIVER),)
+  CONFIG_DRIVER_$(BOARD_WPA_SUPPLICANT_DRIVER) := y
+endif
+
+WPA_SUPPL_DIR = external/wpa_supplicant_8
+
+include $(WPA_SUPPL_DIR)/wpa_supplicant/.config
+
+WPA_SUPPL_DIR_INCLUDE = $(WPA_SUPPL_DIR)/src \
+	$(WPA_SUPPL_DIR)/src/common \
+	$(WPA_SUPPL_DIR)/src/drivers \
+	$(WPA_SUPPL_DIR)/src/l2_packet \
+	$(WPA_SUPPL_DIR)/src/utils \
+	$(WPA_SUPPL_DIR)/src/wps \
+	$(WPA_SUPPL_DIR)/wpa_supplicant
+
+# To force sizeof(enum) = 4
+L_CFLAGS += -mabi=aapcs-linux
+
+ifdef CONFIG_ANDROID_LOG
+L_CFLAGS += -DCONFIG_ANDROID_LOG
+endif
+
+########################
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := lib_driver_cmd_wext
+LOCAL_SHARED_LIBRARIES := libc libcutils
+LOCAL_CFLAGS := $(L_CFLAGS)
+LOCAL_SRC_FILES := driver_cmd_wext.c
+LOCAL_C_INCLUDES := $(WPA_SUPPL_DIR_INCLUDE)
+include $(BUILD_STATIC_LIBRARY)
+
+########################
+
+endif
+endif
diff --git a/bcm4329/wpa_supplicant_8_lib/driver_cmd_wext.c b/bcm4329/wpa_supplicant_8_lib/driver_cmd_wext.c
new file mode 100644
index 0000000..188f63a
--- /dev/null
+++ b/bcm4329/wpa_supplicant_8_lib/driver_cmd_wext.c
@@ -0,0 +1,361 @@
+/*
+ * Driver interaction with extended Linux Wireless Extensions
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ */
+
+#include "includes.h"
+#include <sys/ioctl.h>
+#include <net/if_arp.h>
+#include <net/if.h>
+
+#include "wireless_copy.h"
+#include "common.h"
+#include "driver.h"
+#include "eloop.h"
+#include "priv_netlink.h"
+#include "driver_wext.h"
+#include "ieee802_11_defs.h"
+#include "wpa_common.h"
+#include "wpa_ctrl.h"
+#include "wpa_supplicant_i.h"
+#include "config.h"
+#include "linux_ioctl.h"
+#include "scan.h"
+
+#include "driver_cmd_wext.h"
+
+/**
+ * wpa_driver_wext_set_scan_timeout - Set scan timeout to report scan completion
+ * @priv:  Pointer to private wext data from wpa_driver_wext_init()
+ *
+ * This function can be used to set registered timeout when starting a scan to
+ * generate a scan completed event if the driver does not report this.
+ */
+static void wpa_driver_wext_set_scan_timeout(void *priv)
+{
+	struct wpa_driver_wext_data *drv = priv;
+	int timeout = 10; /* In case scan A and B bands it can be long */
+
+	/* Not all drivers generate "scan completed" wireless event, so try to
+	 * read results after a timeout. */
+	if (drv->scan_complete_events) {
+	/*
+	 * The driver seems to deliver SIOCGIWSCAN events to notify
+	 * when scan is complete, so use longer timeout to avoid race
+	 * conditions with scanning and following association request.
+	 */
+		timeout = 30;
+	}
+	wpa_printf(MSG_DEBUG, "Scan requested - scan timeout %d seconds",
+		   timeout);
+	eloop_cancel_timeout(wpa_driver_wext_scan_timeout, drv, drv->ctx);
+	eloop_register_timeout(timeout, 0, wpa_driver_wext_scan_timeout, drv,
+			       drv->ctx);
+}
+
+/**
+ * wpa_driver_wext_combo_scan - Request the driver to initiate combo scan
+ * @priv: Pointer to private wext data from wpa_driver_wext_init()
+ * @params: Scan parameters
+ * Returns: 0 on success, -1 on failure
+ */
+int wpa_driver_wext_combo_scan(void *priv, struct wpa_driver_scan_params *params)
+{
+	char buf[WEXT_CSCAN_BUF_LEN];
+	struct wpa_driver_wext_data *drv = priv;
+	struct iwreq iwr;
+	int ret, bp;
+	unsigned i;
+	struct wpa_supplicant *wpa_s = (struct wpa_supplicant *)(drv->ctx);
+
+	if (!drv->driver_is_started) {
+		wpa_printf(MSG_DEBUG, "%s: Driver stopped", __func__);
+		return 0;
+	}
+
+	wpa_printf(MSG_DEBUG, "%s: Start", __func__);
+
+	/* Set list of SSIDs */
+	bp = WEXT_CSCAN_HEADER_SIZE;
+	os_memcpy(buf, WEXT_CSCAN_HEADER, bp);
+	for(i=0; i < params->num_ssids; i++) {
+		if ((bp + IW_ESSID_MAX_SIZE + 10) >= (int)sizeof(buf))
+			break;
+		wpa_printf(MSG_DEBUG, "For Scan: %s", params->ssids[i].ssid);
+		buf[bp++] = WEXT_CSCAN_SSID_SECTION;
+		buf[bp++] = params->ssids[i].ssid_len;
+		os_memcpy(&buf[bp], params->ssids[i].ssid, params->ssids[i].ssid_len);
+		bp += params->ssids[i].ssid_len;
+	}
+
+	/* Set list of channels */
+	buf[bp++] = WEXT_CSCAN_CHANNEL_SECTION;
+	buf[bp++] = 0;
+
+	/* Set passive dwell time (default is 250) */
+	buf[bp++] = WEXT_CSCAN_PASV_DWELL_SECTION;
+	buf[bp++] = (u8)WEXT_CSCAN_PASV_DWELL_TIME;
+	buf[bp++] = (u8)(WEXT_CSCAN_PASV_DWELL_TIME >> 8);
+
+	/* Set home dwell time (default is 40) */
+	buf[bp++] = WEXT_CSCAN_HOME_DWELL_SECTION;
+	buf[bp++] = (u8)WEXT_CSCAN_HOME_DWELL_TIME;
+	buf[bp++] = (u8)(WEXT_CSCAN_HOME_DWELL_TIME >> 8);
+
+	os_memset(&iwr, 0, sizeof(iwr));
+	os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
+	iwr.u.data.pointer = buf;
+	iwr.u.data.length = bp;
+
+	if ((ret = ioctl(drv->ioctl_sock, SIOCSIWPRIV, &iwr)) < 0) {
+		wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (cscan): %d", ret);
+	}
+	return ret;
+}
+
+static int wpa_driver_wext_set_cscan_params(char *buf, size_t buf_len, char *cmd)
+{
+	char *pasv_ptr;
+	int bp, i;
+	u16 pasv_dwell = WEXT_CSCAN_PASV_DWELL_TIME_DEF;
+	u8 channel;
+
+	wpa_printf(MSG_DEBUG, "%s: %s", __func__, cmd);
+
+	/* Get command parameters */
+	pasv_ptr = os_strstr(cmd, ",TIME=");
+	if (pasv_ptr) {
+		*pasv_ptr = '\0';
+		pasv_ptr += 6;
+		pasv_dwell = (u16)atoi(pasv_ptr);
+		if (pasv_dwell == 0)
+			pasv_dwell = WEXT_CSCAN_PASV_DWELL_TIME_DEF;
+	}
+	channel = (u8)atoi(cmd + 5);
+
+	bp = WEXT_CSCAN_HEADER_SIZE;
+	os_memcpy(buf, WEXT_CSCAN_HEADER, bp);
+
+	/* Set list of channels */
+	buf[bp++] = WEXT_CSCAN_CHANNEL_SECTION;
+	buf[bp++] = channel;
+	if (channel != 0) {
+		i = (pasv_dwell - 1) / WEXT_CSCAN_PASV_DWELL_TIME_DEF;
+		for (; i > 0; i--) {
+			if ((size_t)(bp + 12) >= buf_len)
+				break;
+			buf[bp++] = WEXT_CSCAN_CHANNEL_SECTION;
+			buf[bp++] = channel;
+		}
+	} else {
+		if (pasv_dwell > WEXT_CSCAN_PASV_DWELL_TIME_MAX)
+			pasv_dwell = WEXT_CSCAN_PASV_DWELL_TIME_MAX;
+	}
+
+	/* Set passive dwell time (default is 250) */
+	buf[bp++] = WEXT_CSCAN_PASV_DWELL_SECTION;
+	if (channel != 0) {
+		buf[bp++] = (u8)WEXT_CSCAN_PASV_DWELL_TIME_DEF;
+		buf[bp++] = (u8)(WEXT_CSCAN_PASV_DWELL_TIME_DEF >> 8);
+	} else {
+		buf[bp++] = (u8)pasv_dwell;
+		buf[bp++] = (u8)(pasv_dwell >> 8);
+	}
+
+	/* Set home dwell time (default is 40) */
+	buf[bp++] = WEXT_CSCAN_HOME_DWELL_SECTION;
+	buf[bp++] = (u8)WEXT_CSCAN_HOME_DWELL_TIME;
+	buf[bp++] = (u8)(WEXT_CSCAN_HOME_DWELL_TIME >> 8);
+
+	/* Set cscan type */
+	buf[bp++] = WEXT_CSCAN_TYPE_SECTION;
+	buf[bp++] = WEXT_CSCAN_TYPE_PASSIVE;
+	return bp;
+}
+
+static char *wpa_driver_get_country_code(int channels)
+{
+	char *country = "US"; /* WEXT_NUMBER_SCAN_CHANNELS_FCC */
+
+	if (channels == WEXT_NUMBER_SCAN_CHANNELS_ETSI)
+		country = "EU";
+	else if( channels == WEXT_NUMBER_SCAN_CHANNELS_MKK1)
+		country = "JP";
+	return country;
+}
+
+static int wpa_driver_set_backgroundscan_params(void *priv)
+{
+	struct wpa_driver_wext_data *drv = priv;
+	struct wpa_supplicant *wpa_s;
+	struct iwreq iwr;
+	int ret = 0, i = 0, bp;
+	char buf[WEXT_PNO_MAX_COMMAND_SIZE];
+	struct wpa_ssid *ssid_conf;
+
+	if (drv == NULL) {
+		wpa_printf(MSG_ERROR, "%s: drv is NULL. Exiting", __func__);
+		return -1;
+	}
+	if (drv->ctx == NULL) {
+		wpa_printf(MSG_ERROR, "%s: drv->ctx is NULL. Exiting", __func__);
+		return -1;
+	}
+	wpa_s = (struct wpa_supplicant *)(drv->ctx);
+	if (wpa_s->conf == NULL) {
+		wpa_printf(MSG_ERROR, "%s: wpa_s->conf is NULL. Exiting", __func__);
+		return -1;
+	}
+	ssid_conf = wpa_s->conf->ssid;
+
+	bp = WEXT_PNOSETUP_HEADER_SIZE;
+	os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp);
+	buf[bp++] = 'S';
+	buf[bp++] = WEXT_PNO_TLV_VERSION;
+	buf[bp++] = WEXT_PNO_TLV_SUBVERSION;
+	buf[bp++] = WEXT_PNO_TLV_RESERVED;
+
+	while ((i < WEXT_PNO_AMOUNT) && (ssid_conf != NULL)) {
+		/* Check that there is enough space needed for 1 more SSID, the other sections and null termination */
+		if ((bp + WEXT_PNO_SSID_HEADER_SIZE + IW_ESSID_MAX_SIZE + WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int)sizeof(buf))
+			break;
+		if ((!ssid_conf->disabled) && (ssid_conf->ssid_len <= IW_ESSID_MAX_SIZE)){
+			wpa_printf(MSG_DEBUG, "For PNO Scan: %s", ssid_conf->ssid);
+			buf[bp++] = WEXT_PNO_SSID_SECTION;
+			buf[bp++] = ssid_conf->ssid_len;
+			os_memcpy(&buf[bp], ssid_conf->ssid, ssid_conf->ssid_len);
+			bp += ssid_conf->ssid_len;
+			i++;
+		}
+		ssid_conf = ssid_conf->next;
+	}
+
+	buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION;
+	os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x", WEXT_PNO_SCAN_INTERVAL);
+	bp += WEXT_PNO_SCAN_INTERVAL_LENGTH;
+
+	buf[bp++] = WEXT_PNO_REPEAT_SECTION;
+	os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x", WEXT_PNO_REPEAT);
+	bp += WEXT_PNO_REPEAT_LENGTH;
+
+	buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION;
+	os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x", WEXT_PNO_MAX_REPEAT);
+	bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1;
+
+	os_memset(&iwr, 0, sizeof(iwr));
+	os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
+	iwr.u.data.pointer = buf;
+	iwr.u.data.length = bp;
+
+	ret = ioctl(drv->ioctl_sock, SIOCSIWPRIV, &iwr);
+
+	if (ret < 0) {
+		wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d", ret);
+		drv->errors++;
+		if (drv->errors > WEXT_NUMBER_SEQUENTIAL_ERRORS) {
+			drv->errors = 0;
+			wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
+		}
+	} else {
+		drv->errors = 0;
+	}
+	return ret;
+
+}
+
+int wpa_driver_wext_driver_cmd( void *priv, char *cmd, char *buf, size_t buf_len )
+{
+	struct wpa_driver_wext_data *drv = priv;
+	struct wpa_supplicant *wpa_s = (struct wpa_supplicant *)(drv->ctx);
+	struct iwreq iwr;
+	int ret = 0, flags;
+
+	wpa_printf(MSG_DEBUG, "%s %s len = %d", __func__, cmd, buf_len);
+
+	if (!drv->driver_is_started && (os_strcasecmp(cmd, "START") != 0)) {
+		wpa_printf(MSG_ERROR,"WEXT: Driver not initialized yet");
+		return -1;
+	}
+
+	if (os_strcasecmp(cmd, "RSSI-APPROX") == 0) {
+		os_strncpy(cmd, "RSSI", MAX_DRV_CMD_SIZE);
+	} else if( os_strncasecmp(cmd, "SCAN-CHANNELS", 13) == 0 ) {
+		int no_of_chan;
+
+		no_of_chan = atoi(cmd + 13);
+		os_snprintf(cmd, MAX_DRV_CMD_SIZE, "COUNTRY %s",
+			wpa_driver_get_country_code(no_of_chan));
+	} else if (os_strcasecmp(cmd, "STOP") == 0) {
+		(void)linux_set_iface_flags(drv->ioctl_sock, drv->ifname, 0);
+	} else if( os_strcasecmp(cmd, "RELOAD") == 0 ) {
+		wpa_printf(MSG_DEBUG,"Reload command");
+		wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
+		return ret;
+	} else if( os_strcasecmp(cmd, "BGSCAN-START") == 0 ) {
+		ret = wpa_driver_set_backgroundscan_params(priv);
+		if (ret < 0) {
+			return ret;
+		}
+		os_strncpy(cmd, "PNOFORCE 1", MAX_DRV_CMD_SIZE);
+		drv->bgscan_enabled = 1;
+	} else if( os_strcasecmp(cmd, "BGSCAN-STOP") == 0 ) {
+		os_strncpy(cmd, "PNOFORCE 0", MAX_DRV_CMD_SIZE);
+		drv->bgscan_enabled = 0;
+	}
+
+	os_memset(&iwr, 0, sizeof(iwr));
+	os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
+	os_memcpy(buf, cmd, strlen(cmd) + 1);
+	iwr.u.data.pointer = buf;
+	iwr.u.data.length = buf_len;
+
+	if( os_strncasecmp(cmd, "CSCAN", 5) == 0 ) {
+		if (!wpa_s->scanning && ((wpa_s->wpa_state <= WPA_SCANNING) ||
+					(wpa_s->wpa_state >= WPA_COMPLETED))) {
+			iwr.u.data.length = wpa_driver_wext_set_cscan_params(buf, buf_len, cmd);
+		} else {
+			wpa_printf(MSG_ERROR, "Ongoing Scan action...");
+			return ret;
+		}
+	}
+
+	ret = ioctl(drv->ioctl_sock, SIOCSIWPRIV, &iwr);
+
+	if (ret < 0) {
+		wpa_printf(MSG_ERROR, "%s failed (%d): %s", __func__, ret, cmd);
+		drv->errors++;
+		if (drv->errors > WEXT_NUMBER_SEQUENTIAL_ERRORS) {
+			drv->errors = 0;
+			wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
+		}
+	} else {
+		drv->errors = 0;
+		ret = 0;
+		if ((os_strcasecmp(cmd, "RSSI") == 0) ||
+		    (os_strcasecmp(cmd, "LINKSPEED") == 0) ||
+		    (os_strcasecmp(cmd, "MACADDR") == 0) ||
+		    (os_strcasecmp(cmd, "GETPOWER") == 0) ||
+		    (os_strcasecmp(cmd, "GETBAND") == 0)) {
+			ret = strlen(buf);
+		} else if (os_strcasecmp(cmd, "START") == 0) {
+			drv->driver_is_started = TRUE;
+			/* os_sleep(0, WPA_DRIVER_WEXT_WAIT_US);
+			wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STARTED"); */
+		} else if (os_strcasecmp(cmd, "STOP") == 0) {
+			drv->driver_is_started = FALSE;
+			/* wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STOPPED"); */
+		} else if (os_strncasecmp(cmd, "CSCAN", 5) == 0) {
+			wpa_driver_wext_set_scan_timeout(priv);
+			wpa_supplicant_notify_scanning(wpa_s, 1);
+		}
+		wpa_printf(MSG_DEBUG, "%s %s len = %d, %d", __func__, buf, ret, strlen(buf));
+	}
+	return ret;
+}
diff --git a/bcm4329/wpa_supplicant_8_lib/driver_cmd_wext.h b/bcm4329/wpa_supplicant_8_lib/driver_cmd_wext.h
new file mode 100644
index 0000000..a952d7e
--- /dev/null
+++ b/bcm4329/wpa_supplicant_8_lib/driver_cmd_wext.h
@@ -0,0 +1,72 @@
+/*
+ * Driver interaction with extended Linux Wireless Extensions
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ */
+#ifndef DRIVER_CMD_WEXT_H
+#define DRIVER_CMD_WEXT_H
+
+#define WEXT_NUMBER_SCAN_CHANNELS_FCC	11
+#define WEXT_NUMBER_SCAN_CHANNELS_ETSI	13
+#define WEXT_NUMBER_SCAN_CHANNELS_MKK1	14
+
+#define WPA_DRIVER_WEXT_WAIT_US		400000
+#define MAX_DRV_CMD_SIZE		248
+#define WEXT_NUMBER_SEQUENTIAL_ERRORS	4
+#define WEXT_CSCAN_AMOUNT		9
+#define WEXT_CSCAN_BUF_LEN		360
+#define WEXT_CSCAN_HEADER		"CSCAN S\x01\x00\x00S\x00"
+#define WEXT_CSCAN_HEADER_SIZE		12
+#define WEXT_CSCAN_SSID_SECTION		'S'
+#define WEXT_CSCAN_CHANNEL_SECTION	'C'
+#define WEXT_CSCAN_NPROBE_SECTION	'N'
+#define WEXT_CSCAN_ACTV_DWELL_SECTION	'A'
+#define WEXT_CSCAN_PASV_DWELL_SECTION	'P'
+#define WEXT_CSCAN_HOME_DWELL_SECTION	'H'
+#define WEXT_CSCAN_TYPE_SECTION		'T'
+#define WEXT_CSCAN_TYPE_DEFAULT		0
+#define WEXT_CSCAN_TYPE_PASSIVE		1
+#define WEXT_CSCAN_PASV_DWELL_TIME	130
+#define WEXT_CSCAN_PASV_DWELL_TIME_DEF	250
+#define WEXT_CSCAN_PASV_DWELL_TIME_MAX	3000
+#define WEXT_CSCAN_HOME_DWELL_TIME	130
+
+#define WEXT_PNOSETUP_HEADER            "PNOSETUP "
+#define WEXT_PNOSETUP_HEADER_SIZE       9
+#define WEXT_PNO_TLV_VERSION            '1'
+#define WEXT_PNO_TLV_SUBVERSION         '2'
+#define WEXT_PNO_TLV_RESERVED           '0'
+#define WEXT_PNO_VERSION_SIZE           4
+#define WEXT_PNO_AMOUNT                 16
+#define WEXT_PNO_SSID_SECTION           'S'
+/* SSID header size is SSID section type above + SSID length */
+#define WEXT_PNO_SSID_HEADER_SIZE       2
+#define WEXT_PNO_SCAN_INTERVAL_SECTION  'T'
+#define WEXT_PNO_SCAN_INTERVAL_LENGTH   2
+#define WEXT_PNO_SCAN_INTERVAL          30
+/* Scan interval size is scan interval section type + scan interval length above*/
+#define WEXT_PNO_SCAN_INTERVAL_SIZE     (1 + WEXT_PNO_SCAN_INTERVAL_LENGTH)
+#define WEXT_PNO_REPEAT_SECTION         'R'
+#define WEXT_PNO_REPEAT_LENGTH          1
+#define WEXT_PNO_REPEAT                 4
+/* Repeat section size is Repeat section type + Repeat value length above*/
+#define WEXT_PNO_REPEAT_SIZE            (1 + WEXT_PNO_REPEAT_LENGTH)
+#define WEXT_PNO_MAX_REPEAT_SECTION     'M'
+#define WEXT_PNO_MAX_REPEAT_LENGTH      1
+#define WEXT_PNO_MAX_REPEAT             3
+/* Max Repeat section size is Max Repeat section type + Max Repeat value length above*/
+#define WEXT_PNO_MAX_REPEAT_SIZE        (1 + WEXT_PNO_MAX_REPEAT_LENGTH)
+/* This corresponds to the size of all sections expect SSIDs */
+#define WEXT_PNO_NONSSID_SECTIONS_SIZE  (WEXT_PNO_SCAN_INTERVAL_SIZE + WEXT_PNO_REPEAT_SIZE + WEXT_PNO_MAX_REPEAT_SIZE)
+/* PNO Max command size is total of header, version, ssid and other sections + Null termination */
+#define WEXT_PNO_MAX_COMMAND_SIZE       (WEXT_PNOSETUP_HEADER_SIZE + WEXT_PNO_VERSION_SIZE \
+					+ WEXT_PNO_AMOUNT * (WEXT_PNO_SSID_HEADER_SIZE + IW_ESSID_MAX_SIZE) \
+					+ WEXT_PNO_NONSSID_SECTIONS_SIZE + 1)
+
+#endif /* DRIVER_CMD_WEXT_H */