supplicant/esp_wifi: move supplicant to idf

Move supplicant to idf and do following refactoring:
1. Make the folder structure consitent with supplicant upstream
2. Remove duplicated header files and minimize the public header files
3. Refactor for WiFi/supplicant interfaces

components/wpa_supplicant/src/utils/base64.c

@@ -0,0 +1,155 @@
+/*
+ * Base64 encoding/decoding (RFC1341)
+ * Copyright (c) 2005-2011, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+
+#include "os.h"
+#include "base64.h"
+
+static const unsigned char base64_table[65] =
+	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+/**
+ * base64_encode - Base64 encode
+ * @src: Data to be encoded
+ * @len: Length of the data to be encoded
+ * @out_len: Pointer to output length variable, or %NULL if not used
+ * Returns: Allocated buffer of out_len bytes of encoded data,
+ * or %NULL on failure
+ *
+ * Caller is responsible for freeing the returned buffer. Returned buffer is
+ * nul terminated to make it easier to use as a C string. The nul terminator is
+ * not included in out_len.
+ */
+unsigned char * base64_encode(const unsigned char *src, size_t len,
+			      size_t *out_len)
+{
+	unsigned char *out, *pos;
+	const unsigned char *end, *in;
+	size_t olen;
+	int line_len;
+
+	olen = len * 4 / 3 + 4; /* 3-byte blocks to 4-byte */
+	olen += olen / 72; /* line feeds */
+	olen++; /* nul termination */
+	if (olen < len)
+		return NULL; /* integer overflow */
+	out = os_malloc(olen);
+	if (out == NULL)
+		return NULL;
+
+	end = src + len;
+	in = src;
+	pos = out;
+	line_len = 0;
+	while (end - in >= 3) {
+		*pos++ = base64_table[in[0] >> 2];
+		*pos++ = base64_table[((in[0] & 0x03) << 4) | (in[1] >> 4)];
+		*pos++ = base64_table[((in[1] & 0x0f) << 2) | (in[2] >> 6)];
+		*pos++ = base64_table[in[2] & 0x3f];
+		in += 3;
+		line_len += 4;
+		if (line_len >= 72) {
+			*pos++ = '\n';
+			line_len = 0;
+		}
+	}
+
+	if (end - in) {
+		*pos++ = base64_table[in[0] >> 2];
+		if (end - in == 1) {
+			*pos++ = base64_table[(in[0] & 0x03) << 4];
+			*pos++ = '=';
+		} else {
+			*pos++ = base64_table[((in[0] & 0x03) << 4) |
+					      (in[1] >> 4)];
+			*pos++ = base64_table[(in[1] & 0x0f) << 2];
+		}
+		*pos++ = '=';
+		line_len += 4;
+	}
+
+	if (line_len)
+		*pos++ = '\n';
+
+	*pos = '\0';
+	if (out_len)
+		*out_len = pos - out;
+	return out;
+}
+
+
+/**
+ * base64_decode - Base64 decode
+ * @src: Data to be decoded
+ * @len: Length of the data to be decoded
+ * @out_len: Pointer to output length variable
+ * Returns: Allocated buffer of out_len bytes of decoded data,
+ * or %NULL on failure
+ *
+ * Caller is responsible for freeing the returned buffer.
+ */
+unsigned char * base64_decode(const unsigned char *src, size_t len,
+			      size_t *out_len)
+{
+	unsigned char dtable[256], *out, *pos, block[4], tmp;
+	size_t i, count, olen;
+	int pad = 0;
+
+	os_memset(dtable, 0x80, 256);
+	for (i = 0; i < sizeof(base64_table) - 1; i++)
+		dtable[base64_table[i]] = (unsigned char) i;
+	dtable['='] = 0;
+
+	count = 0;
+	for (i = 0; i < len; i++) {
+		if (dtable[src[i]] != 0x80)
+			count++;
+	}
+
+	if (count == 0 || count % 4)
+		return NULL;
+
+	olen = count / 4 * 3;
+	pos = out = os_malloc(olen);
+	if (out == NULL)
+		return NULL;
+
+	count = 0;
+	for (i = 0; i < len; i++) {
+		tmp = dtable[src[i]];
+		if (tmp == 0x80)
+			continue;
+
+		if (src[i] == '=')
+			pad++;
+		block[count] = tmp;
+		count++;
+		if (count == 4) {
+			*pos++ = (block[0] << 2) | (block[1] >> 4);
+			*pos++ = (block[1] << 4) | (block[2] >> 2);
+			*pos++ = (block[2] << 6) | block[3];
+			count = 0;
+			if (pad) {
+				if (pad == 1)
+					pos--;
+				else if (pad == 2)
+					pos -= 2;
+				else {
+					/* Invalid padding */
+					os_free(out);
+					return NULL;
+				}
+				break;
+			}
+		}
+	}
+
+	*out_len = pos - out;
+	return out;
+}

components/wpa_supplicant/src/utils/base64.h

@@ -0,0 +1,23 @@
+/*
+ * Base64 encoding/decoding (RFC1341)
+ * Copyright (c) 2005, Jouni Malinen <j@w1.fi>
+ *
+ * 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.
+ *
+ * See README and COPYING for more details.
+ */
+
+#ifndef BASE64_H
+#define BASE64_H
+
+unsigned char * base64_encode(const unsigned char *src, size_t len,
+			      size_t *out_len);
+unsigned char * base64_decode(const unsigned char *src, size_t len,
+			      size_t *out_len);
+
+#endif /* BASE64_H */

components/wpa_supplicant/src/utils/common.c

@@ -0,0 +1,166 @@
+/*
+ * wpa_supplicant/hostapd / common helper functions, etc.
+ * Copyright (c) 2002-2007, Jouni Malinen <j@w1.fi>
+ *
+ * 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.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "utils/includes.h"
+
+#include "utils/common.h"
+
+/**
+ * inc_byte_array - Increment arbitrary length byte array by one
+ * @counter: Pointer to byte array
+ * @len: Length of the counter in bytes
+ *
+ * This function increments the last byte of the counter by one and continues
+ * rolling over to more significant bytes if the byte was incremented from
+ * 0xff to 0x00.
+ */
+void inc_byte_array(u8 *counter, size_t len)
+{
+	int pos = len - 1;
+	while (pos >= 0) {
+		counter[pos]++;
+		if (counter[pos] != 0)
+			break;
+		pos--;
+	}
+}
+
+static int hex2num(char c)
+{
+	if (c >= '0' && c <= '9')
+		return c - '0';
+	if (c >= 'a' && c <= 'f')
+		return c - 'a' + 10;
+	if (c >= 'A' && c <= 'F')
+		return c - 'A' + 10;
+	return -1;
+}
+
+
+int hex2byte(const char *hex)
+{
+	int a, b;
+	a = hex2num(*hex++);
+	if (a < 0)
+		return -1;
+	b = hex2num(*hex++);
+	if (b < 0)
+		return -1;
+	return (a << 4) | b;
+}
+
+
+/**
+ * hexstr2bin - Convert ASCII hex string into binary data
+ * @hex: ASCII hex string (e.g., "01ab")
+ * @buf: Buffer for the binary data
+ * @len: Length of the text to convert in bytes (of buf); hex will be double
+ * this size
+ * Returns: 0 on success, -1 on failure (invalid hex string)
+ */
+int hexstr2bin(const char *hex, u8 *buf, size_t len)
+{
+	size_t i;
+	int a;
+	const char *ipos = hex;
+	u8 *opos = buf;
+
+	for (i = 0; i < len; i++) {
+		a = hex2byte(ipos);
+		if (a < 0)
+			return -1;
+		*opos++ = a;
+		ipos += 2;
+	}
+	return 0;
+}
+
+void wpa_get_ntp_timestamp(u8 *buf)
+{
+	struct os_time now;
+	u32 sec, usec;
+	be32 tmp;
+
+	/* 64-bit NTP timestamp (time from 1900-01-01 00:00:00) */
+	os_get_time(&now);
+	sec = now.sec + 2208988800U; /* Epoch to 1900 */
+	/* Estimate 2^32/10^6 = 4295 - 1/32 - 1/512 */
+	usec = now.usec;
+	usec = 4295 * usec - (usec >> 5) - (usec >> 9);
+	tmp = host_to_be32(sec);
+	memcpy(buf, (u8 *) &tmp, 4);
+	tmp = host_to_be32(usec);
+	memcpy(buf + 4, (u8 *) &tmp, 4);
+}
+
+char * wpa_config_parse_string(const char *value, size_t *len)
+{
+	if (*value == '"' && (strlen(value) == 7 || strlen(value) == 15)) {
+		const char *pos;
+		char *str;
+		value++;
+		pos = (char *)strrchr(value, '"');
+		if (pos == NULL)
+			return NULL;
+		*len = pos - value;
+		str = (char *)os_malloc(*len + 1);
+		if (str == NULL)
+			return NULL;
+		memcpy(str, value, *len);
+		str[*len] = '\0';
+		return str;
+	} else {
+		u8 *str;
+		size_t tlen, hlen = strlen(value);
+		if (hlen == 5 || hlen == 13) {
+			*len = hlen;
+			str = (u8 *)os_malloc(*len + 1);
+			if (str == NULL) {
+				return NULL;
+			}
+			memcpy(str, value, *len);
+			str[*len] = '\0';
+		} else if (hlen == 10 || hlen == 26) {
+			tlen = hlen / 2;
+			str = (u8 *)os_malloc(tlen + 1);
+			if (str == NULL)
+				return NULL;
+			if (hexstr2bin(value, str, tlen)) {
+				os_free(str);
+				return NULL;
+			}
+			str[tlen] = '\0';
+			*len = tlen;
+		} else {
+			return NULL;
+		}
+		return (char *) str;
+	}
+}
+
+char * dup_binstr(const void *src, size_t len)
+{
+        char *res;
+
+        if (src == NULL)
+                return NULL;
+        res = os_malloc(len + 1);
+        if (res == NULL)
+                return NULL;
+        memcpy(res, src, len);
+        res[len] = '\0';
+
+        return res;
+}
+

components/wpa_supplicant/src/utils/ext_password.c

@@ -0,0 +1,114 @@
+/*
+ * External password backend
+ * Copyright (c) 2012, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+
+#include "utils/common.h"
+#include "ext_password_i.h"
+
+#ifdef CONFIG_EXT_PASSWORD_TEST
+extern struct ext_password_backend ext_password_test;
+#endif /* CONFIG_EXT_PASSWORD_TEST */
+
+#ifdef CONFIG_EXT_PASSWORD
+static const struct ext_password_backend *backends[] = {
+#ifdef CONFIG_EXT_PASSWORD_TEST
+	&ext_password_test,
+#endif /* CONFIG_EXT_PASSWORD_TEST */
+	NULL
+};
+#endif
+
+struct ext_password_data {
+	const struct ext_password_backend *backend;
+	void *priv;
+};
+
+#ifdef CONFIG_EXT_PASSWORD
+struct ext_password_data * ext_password_init(const char *backend,
+					     const char *params)
+{
+	struct ext_password_data *data;
+	int i;
+
+	data = (struct ext_password_data *)os_zalloc(sizeof(*data));
+	if (data == NULL)
+		return NULL;
+
+	for (i = 0; backends[i]; i++) {
+		if (os_strcmp(backends[i]->name, backend) == 0) {
+			data->backend = backends[i];
+			break;
+		}
+	}
+
+	if (!data->backend) {
+		os_free(data);
+		return NULL;
+	}
+
+	data->priv = data->backend->init(params);
+	if (data->priv == NULL) {
+		os_free(data);
+		return NULL;
+	}
+
+	return data;
+}
+
+
+void ext_password_deinit(struct ext_password_data *data)
+{
+	if (data && data->backend && data->priv)
+		data->backend->deinit(data->priv);
+	os_free(data);
+}
+
+
+struct wpabuf * ext_password_get(struct ext_password_data *data,
+				 const char *name)
+{
+	if (data == NULL)
+		return NULL;
+	return data->backend->get(data->priv, name);
+}
+#endif /* CONFIG_EXT_PASSWORD */
+
+struct wpabuf * ext_password_alloc(size_t len)
+{
+	struct wpabuf *buf;
+
+	buf = wpabuf_alloc(len);
+	if (buf == NULL)
+		return NULL;
+
+#ifdef __linux__
+	if (mlock(wpabuf_head(buf), wpabuf_len(buf)) < 0) {
+		wpa_printf(MSG_ERROR, "EXT PW: mlock failed: %s",
+			   strerror(errno));
+	}
+#endif /* __linux__ */
+
+	return buf;
+}
+
+#ifdef CONFIG_EXT_PASSWORD
+void ext_password_free(struct wpabuf *pw)
+{
+	if (pw == NULL)
+		return;
+	os_memset(wpabuf_mhead(pw), 0, wpabuf_len(pw));
+#ifdef __linux__
+	if (munlock(wpabuf_head(pw), wpabuf_len(pw)) < 0) {
+		wpa_printf(MSG_ERROR, "EXT PW: munlock failed: %s",
+			   strerror(errno));
+	}
+#endif /* __linux__ */
+	wpabuf_free(pw);
+}
+#endif /* CONFIG_EXT_PASSWORD */

components/wpa_supplicant/src/utils/ext_password.h

@@ -0,0 +1,33 @@
+/*
+ * External password backend
+ * Copyright (c) 2012, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#ifndef EXT_PASSWORD_H
+#define EXT_PASSWORD_H
+
+struct ext_password_data;
+
+#ifdef CONFIG_EXT_PASSWORD
+
+struct ext_password_data * ext_password_init(const char *backend,
+					     const char *params);
+void ext_password_deinit(struct ext_password_data *data);
+
+struct wpabuf * ext_password_get(struct ext_password_data *data,
+				 const char *name);
+void ext_password_free(struct wpabuf *pw);
+
+#else /* CONFIG_EXT_PASSWORD */
+
+#define ext_password_init(b, p)
+#define ext_password_deinit(d)
+#define ext_password_get(d, n)
+#define ext_password_free(p)
+
+#endif /* CONFIG_EXT_PASSWORD */
+
+#endif /* EXT_PASSWORD_H */

components/wpa_supplicant/src/utils/ext_password_i.h

@@ -0,0 +1,23 @@
+/*
+ * External password backend - internal definitions
+ * Copyright (c) 2012, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#ifndef EXT_PASSWORD_I_H
+#define EXT_PASSWORD_I_H
+
+#include "ext_password.h"
+
+struct ext_password_backend {
+	const char *name;
+	void * (*init)(const char *params);
+	void (*deinit)(void *ctx);
+	struct wpabuf * (*get)(void *ctx, const char *name);
+};
+
+struct wpabuf * ext_password_alloc(size_t len);
+
+#endif /* EXT_PASSWORD_I_H */

components/wpa_supplicant/src/utils/includes.h

@@ -0,0 +1,62 @@
+/*
+ * wpa_supplicant/hostapd - Default include files
+ * Copyright (c) 2005-2006, Jouni Malinen <j@w1.fi>
+ *
+ * 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.
+ *
+ * See README and COPYING for more details.
+ *
+ * This header file is included into all C files so that commonly used header
+ * files can be selected with OS specific ifdef blocks in one place instead of
+ * having to have OS/C library specific selection in many files.
+ */
+
+#ifndef INCLUDES_H
+#define INCLUDES_H
+
+#include "supplicant_opt.h"
+
+/* Include possible build time configuration before including anything else */
+#ifndef __ets__
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#ifndef _WIN32_WCE
+#ifndef CONFIG_TI_COMPILER
+#include <signal.h>
+#include <sys/types.h>
+#endif /* CONFIG_TI_COMPILER */
+#include <errno.h>
+#endif /* _WIN32_WCE */
+#include <ctype.h>
+#include <time.h>
+
+#ifndef CONFIG_TI_COMPILER
+#ifndef _MSC_VER
+#include <unistd.h>
+#endif /* _MSC_VER */
+#endif /* CONFIG_TI_COMPILER */
+
+#ifndef CONFIG_NATIVE_WINDOWS
+#ifndef CONFIG_TI_COMPILER
+#ifndef __vxworks
+#ifndef __SYMBIAN32__
+#endif /* __SYMBIAN32__ */
+#include <sys/time.h>
+#endif /* __vxworks */
+#endif /* CONFIG_TI_COMPILER */
+#endif /* CONFIG_NATIVE_WINDOWS */
+
+#else
+
+#include "esp32/rom/ets_sys.h"
+
+#endif /* !__ets__ */
+
+#endif /* INCLUDES_H */

components/wpa_supplicant/src/utils/list.h

@@ -0,0 +1,103 @@
+/*
+ * Doubly-linked list
+ * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
+ *
+ * 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.
+ *
+ * See README and COPYING for more details.
+ */
+
+#ifndef LIST_H
+#define LIST_H
+
+#include <stddef.h>
+
+/**
+ * struct dl_list - Doubly-linked list
+ */
+struct dl_list {
+	struct dl_list *next;
+	struct dl_list *prev;
+};
+
+static inline void dl_list_init(struct dl_list *list)
+{
+	list->next = list;
+	list->prev = list;
+}
+
+static inline void dl_list_add(struct dl_list *list, struct dl_list *item)
+{
+	item->next = list->next;
+	item->prev = list;
+	list->next->prev = item;
+	list->next = item;
+}
+
+static inline void dl_list_add_tail(struct dl_list *list, struct dl_list *item)
+{
+	dl_list_add(list->prev, item);
+}
+
+static inline void dl_list_del(struct dl_list *item)
+{
+	item->next->prev = item->prev;
+	item->prev->next = item->next;
+	item->next = NULL;
+	item->prev = NULL;
+}
+
+static inline int dl_list_empty(struct dl_list *list)
+{
+	return list->next == list;
+}
+
+static inline unsigned int dl_list_len(struct dl_list *list)
+{
+	struct dl_list *item;
+	int count = 0;
+	for (item = list->next; item != list; item = item->next)
+		count++;
+	return count;
+}
+
+#ifndef offsetof
+#define offsetof(type, member) ((long) &((type *) 0)->member)
+#endif
+
+#define dl_list_entry(item, type, member) \
+	((type *) ((char *) item - offsetof(type, member)))
+
+#define dl_list_first(list, type, member) \
+	(dl_list_empty((list)) ? NULL : \
+	 dl_list_entry((list)->next, type, member))
+
+#define dl_list_last(list, type, member) \
+	(dl_list_empty((list)) ? NULL : \
+	 dl_list_entry((list)->prev, type, member))
+
+#define dl_list_for_each(item, list, type, member) \
+	for (item = dl_list_entry((list)->next, type, member); \
+	     &item->member != (list); \
+	     item = dl_list_entry(item->member.next, type, member))
+
+#define dl_list_for_each_safe(item, n, list, type, member) \
+	for (item = dl_list_entry((list)->next, type, member), \
+		     n = dl_list_entry(item->member.next, type, member); \
+	     &item->member != (list); \
+	     item = n, n = dl_list_entry(n->member.next, type, member))
+
+#define dl_list_for_each_reverse(item, list, type, member) \
+	for (item = dl_list_entry((list)->prev, type, member); \
+	     &item->member != (list); \
+	     item = dl_list_entry(item->member.prev, type, member))
+
+#define DEFINE_DL_LIST(name) \
+	struct dl_list name = { &(name), &(name) }
+
+#endif /* LIST_H */

components/wpa_supplicant/src/utils/state_machine.h

@@ -0,0 +1,138 @@
+/*
+ * wpa_supplicant/hostapd - State machine definitions
+ * Copyright (c) 2002-2005, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ *
+ * This file includes a set of pre-processor macros that can be used to
+ * implement a state machine. In addition to including this header file, each
+ * file implementing a state machine must define STATE_MACHINE_DATA to be the
+ * data structure including state variables (enum machine_state,
+ * Boolean changed), and STATE_MACHINE_DEBUG_PREFIX to be a string that is used
+ * as a prefix for all debug messages. If SM_ENTRY_MA macro is used to define
+ * a group of state machines with shared data structure, STATE_MACHINE_ADDR
+ * needs to be defined to point to the MAC address used in debug output.
+ * SM_ENTRY_M macro can be used to define similar group of state machines
+ * without this additional debug info.
+ */
+
+#ifndef STATE_MACHINE_H
+#define STATE_MACHINE_H
+
+/**
+ * SM_STATE - Declaration of a state machine function
+ * @machine: State machine name
+ * @state: State machine state
+ *
+ * This macro is used to declare a state machine function. It is used in place
+ * of a C function definition to declare functions to be run when the state is
+ * entered by calling SM_ENTER or SM_ENTER_GLOBAL.
+ */
+#define SM_STATE(machine, state) \
+static void sm_ ## machine ## _ ## state ## _Enter(STATE_MACHINE_DATA *sm, \
+	int global)
+
+/**
+ * SM_ENTRY - State machine function entry point
+ * @machine: State machine name
+ * @state: State machine state
+ *
+ * This macro is used inside each state machine function declared with
+ * SM_STATE. SM_ENTRY should be in the beginning of the function body, but
+ * after declaration of possible local variables. This macro prints debug
+ * information about state transition and update the state machine state.
+ */
+#define SM_ENTRY(machine, state) \
+if (!global || sm->machine ## _state != machine ## _ ## state) { \
+	sm->changed = TRUE; \
+	wpa_printf(MSG_DEBUG, STATE_MACHINE_DEBUG_PREFIX ": " #machine \
+		   " entering state " #state); \
+} \
+sm->machine ## _state = machine ## _ ## state;
+
+/**
+ * SM_ENTRY_M - State machine function entry point for state machine group
+ * @machine: State machine name
+ * @_state: State machine state
+ * @data: State variable prefix (full variable: prefix_state)
+ *
+ * This macro is like SM_ENTRY, but for state machine groups that use a shared
+ * data structure for more than one state machine. Both machine and prefix
+ * parameters are set to "sub-state machine" name. prefix is used to allow more
+ * than one state variable to be stored in the same data structure.
+ */
+#define SM_ENTRY_M(machine, _state, data) \
+if (!global || sm->data ## _ ## state != machine ## _ ## _state) { \
+	sm->changed = TRUE; \
+	wpa_printf(MSG_DEBUG, STATE_MACHINE_DEBUG_PREFIX ": " \
+		   #machine " entering state " #_state); \
+} \
+sm->data ## _ ## state = machine ## _ ## _state;
+
+/**
+ * SM_ENTRY_MA - State machine function entry point for state machine group
+ * @machine: State machine name
+ * @_state: State machine state
+ * @data: State variable prefix (full variable: prefix_state)
+ *
+ * This macro is like SM_ENTRY_M, but a MAC address is included in debug
+ * output. STATE_MACHINE_ADDR has to be defined to point to the MAC address to
+ * be included in debug.
+ */
+#define SM_ENTRY_MA(machine, _state, data) \
+if (!global || sm->data ## _ ## state != machine ## _ ## _state) { \
+	sm->changed = TRUE; \
+	wpa_printf(MSG_DEBUG, STATE_MACHINE_DEBUG_PREFIX ": " MACSTR " " \
+		   #machine " entering state " #_state"\n", \
+		   MAC2STR(STATE_MACHINE_ADDR)); \
+} \
+sm->data ## _ ## state = machine ## _ ## _state;
+
+/**
+ * SM_ENTER - Enter a new state machine state
+ * @machine: State machine name
+ * @state: State machine state
+ *
+ * This macro expands to a function call to a state machine function defined
+ * with SM_STATE macro. SM_ENTER is used in a state machine step function to
+ * move the state machine to a new state.
+ */
+#define SM_ENTER(machine, state) \
+sm_ ## machine ## _ ## state ## _Enter(sm, 0)
+
+/**
+ * SM_ENTER_GLOBAL - Enter a new state machine state based on global rule
+ * @machine: State machine name
+ * @state: State machine state
+ *
+ * This macro is like SM_ENTER, but this is used when entering a new state
+ * based on a global (not specific to any particular state) rule. A separate
+ * macro is used to avoid unwanted debug message floods when the same global
+ * rule is forcing a state machine to remain in on state.
+ */
+#define SM_ENTER_GLOBAL(machine, state) \
+sm_ ## machine ## _ ## state ## _Enter(sm, 1)
+
+/**
+ * SM_STEP - Declaration of a state machine step function
+ * @machine: State machine name
+ *
+ * This macro is used to declare a state machine step function. It is used in
+ * place of a C function definition to declare a function that is used to move
+ * state machine to a new state based on state variables. This function uses
+ * SM_ENTER and SM_ENTER_GLOBAL macros to enter new state.
+ */
+#define SM_STEP(machine) \
+static void sm_ ## machine ## _Step(STATE_MACHINE_DATA *sm)
+
+/**
+ * SM_STEP_RUN - Call the state machine step function
+ * @machine: State machine name
+ *
+ * This macro expands to a function call to a state machine step function
+ * defined with SM_STEP macro.
+ */
+#define SM_STEP_RUN(machine) sm_ ## machine ## _Step(sm)
+
+#endif /* STATE_MACHINE_H */

components/wpa_supplicant/src/utils/uuid.c

@@ -0,0 +1,71 @@
+/*
+ * Universally Unique IDentifier (UUID)
+ * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+
+#include "utils/common.h"
+#include "utils/uuid.h"
+
+int uuid_str2bin(const char *str, u8 *bin)
+{
+	const char *pos;
+	u8 *opos;
+
+	pos = str;
+	opos = bin;
+
+	if (hexstr2bin(pos, opos, 4))
+		return -1;
+	pos += 8;
+	opos += 4;
+
+	if (*pos++ != '-' || hexstr2bin(pos, opos, 2))
+		return -1;
+	pos += 4;
+	opos += 2;
+
+	if (*pos++ != '-' || hexstr2bin(pos, opos, 2))
+		return -1;
+	pos += 4;
+	opos += 2;
+
+	if (*pos++ != '-' || hexstr2bin(pos, opos, 2))
+		return -1;
+	pos += 4;
+	opos += 2;
+
+	if (*pos++ != '-' || hexstr2bin(pos, opos, 6))
+		return -1;
+
+	return 0;
+}
+
+
+int uuid_bin2str(const u8 *bin, char *str, size_t max_len)
+{
+	int len;
+	len = snprintf(str, max_len, "%02x%02x%02x%02x-%02x%02x-%02x%02x-"
+			  "%02x%02x-%02x%02x%02x%02x%02x%02x",
+			  bin[0], bin[1], bin[2], bin[3],
+			  bin[4], bin[5], bin[6], bin[7],
+			  bin[8], bin[9], bin[10], bin[11],
+			  bin[12], bin[13], bin[14], bin[15]);
+	if (len < 0 || (size_t) len >= max_len)
+		return -1;
+	return 0;
+}
+
+
+int is_nil_uuid(const u8 *uuid)
+{
+	int i;
+	for (i = 0; i < UUID_LEN; i++)
+		if (uuid[i])
+			return 0;
+	return 1;
+}

components/wpa_supplicant/src/utils/uuid.h

@@ -0,0 +1,18 @@
+/*
+ * Universally Unique IDentifier (UUID)
+ * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#ifndef UUID_H
+#define UUID_H
+
+#define UUID_LEN 16
+
+int uuid_str2bin(const char *str, u8 *bin);
+int uuid_bin2str(const u8 *bin, char *str, size_t max_len);
+int is_nil_uuid(const u8 *uuid);
+
+#endif /* UUID_H */

components/wpa_supplicant/src/utils/wpa_debug.c

@@ -0,0 +1,114 @@
+/*
+ * wpa_supplicant/hostapd / Debug prints
+ * Copyright (c) 2002-2007, Jouni Malinen <j@w1.fi>
+ *
+ * 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.
+ *
+ * See README and COPYING for more details.
+ */
+#ifdef ESP_SUPPLICANT
+#include "utils/includes.h"
+#include "utils/common.h"
+#include "utils/wpa_debug.h"
+
+static inline int  _wpa_snprintf_hex(char *buf, size_t buf_size, const u8 *data, size_t len, int uppercase)
+{
+    size_t i;
+    char *pos = buf, *end = buf + buf_size;
+    int ret;
+
+    if (buf_size == 0)
+        return 0;
+
+    for (i = 0; i < len; i++) {
+        ret = snprintf(pos, end - pos, uppercase? "%02X":"%02x", data[i]);
+        if (ret < 0 || ret >= end - pos) {
+            end[-1] = '\0';
+            return pos - buf;
+        }
+        pos += ret;
+    }
+    end[-1]='\0';
+    return pos - buf;
+}
+
+int  wpa_snprintf_hex_uppercase(char *buf, size_t buf_size, const u8 *data, size_t len)
+{
+	return _wpa_snprintf_hex(buf, buf_size, data, len, 1);
+}
+
+int  wpa_snprintf_hex(char *buf, size_t buf_size, const u8 *data, size_t len)
+{
+	return _wpa_snprintf_hex(buf, buf_size, data, len, 0);
+}
+
+#ifdef DEBUG_PRINT
+void  wpa_dump_mem(char* desc, uint8_t *addr, uint16_t len)
+{
+    wpa_printf(MSG_DEBUG, "%s\n", desc);
+    if (addr){
+        uint16_t i=0;
+        for (i=0; i<len; i++){
+            if (i%16==0) wpa_printf(MSG_DEBUG, "\n");
+            wpa_printf(MSG_DEBUG, "%02x ", addr[i]);
+        }
+        wpa_printf(MSG_DEBUG, "\n");
+    }
+}
+
+void  wpa_debug_print_timestamp(void)
+{
+#ifdef DEBUG_PRINT
+    struct os_time tv;
+    os_get_time(&tv);
+    wpa_printf(MSG_DEBUG, "%ld.%06u: ", (long) tv.sec, (unsigned int) tv.usec);
+#endif	
+}
+
+void  wpa_hexdump(int level, const char *title, const u8 *buf, size_t len)
+{
+#ifdef DEBUG_PRINT 
+	size_t i;
+
+	if (level < MSG_MSGDUMP)
+		return;
+
+	wpa_printf(MSG_DEBUG, "%s - hexdump(len=%lu):\n", title, (unsigned long) len);
+	if (buf == NULL) {
+		wpa_printf(MSG_DEBUG, " [NULL]\n");
+	} else {
+		for (i = 0; i < len; i++) {
+			wpa_printf(MSG_DEBUG, " %02x", buf[i]);
+            if((i+1) % 16 == 0)
+                wpa_printf(MSG_DEBUG, "\n");
+        }
+	} 
+	wpa_printf(MSG_DEBUG, "\n");
+#endif	
+}
+
+void  wpa_hexdump_key(int level, const char *title, const u8 *buf, size_t len)
+{
+     wpa_hexdump(level, title, buf, len);
+}
+#endif
+
+int  eloop_cancel_timeout(eloop_timeout_handler handler,
+			 void *eloop_data, void *user_data)
+{
+    return 0;	
+}
+
+int  eloop_register_timeout(unsigned int secs, unsigned int usecs,
+			   eloop_timeout_handler handler,
+			   void *eloop_data, void *user_data)
+{
+    return 0;
+}
+#endif // ESP_SUPPLICANT
+

components/wpa_supplicant/src/utils/wpabuf.c

@@ -0,0 +1,300 @@
+/*
+ * Dynamic data buffer
+ * Copyright (c) 2007-2009, Jouni Malinen <j@w1.fi>
+ *
+ * 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.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "utils/includes.h"
+
+#include "utils/common.h"
+#include "utils/wpabuf.h"
+#include "stdio.h"
+#include "stdarg.h"
+
+#ifdef WPA_TRACE
+#define WPABUF_MAGIC 0x51a974e3
+
+struct wpabuf_trace {
+	unsigned int magic;
+};
+
+static struct wpabuf_trace * wpabuf_get_trace(const struct wpabuf *buf)
+{
+	return (struct wpabuf_trace *)
+		((const u8 *) buf - sizeof(struct wpabuf_trace));
+}
+#endif /* WPA_TRACE */
+
+
+static void wpabuf_overflow(const struct wpabuf *buf, size_t len)
+{
+#ifdef WPA_TRACE
+	struct wpabuf_trace *trace = wpabuf_get_trace(buf);
+	if (trace->magic != WPABUF_MAGIC) {
+		wpa_printf( MSG_ERROR,  "wpabuf: invalid magic %x",
+			   trace->magic);
+	}
+#endif /* WPA_TRACE */
+	wpa_printf( MSG_ERROR, "wpabuf %p (size=%lu used=%lu) overflow len=%lu",
+		   buf, (unsigned long) buf->size, (unsigned long) buf->used,
+		   (unsigned long) len);
+}
+
+
+int wpabuf_resize(struct wpabuf **_buf, size_t add_len)
+{
+	struct wpabuf *buf = *_buf;
+#ifdef WPA_TRACE
+	struct wpabuf_trace *trace;
+#endif /* WPA_TRACE */
+
+	if (buf == NULL) {
+		*_buf = wpabuf_alloc(add_len);
+		return *_buf == NULL ? -1 : 0;
+	}
+
+#ifdef WPA_TRACE
+	trace = wpabuf_get_trace(buf);
+	if (trace->magic != WPABUF_MAGIC) {
+		wpa_printf( MSG_ERROR,  "wpabuf: invalid magic %x",
+			   trace->magic);
+		abort();
+	}
+#endif /* WPA_TRACE */
+
+	if (buf->used + add_len > buf->size) {
+		unsigned char *nbuf;
+		if (buf->ext_data) {
+			nbuf = (unsigned char*)os_realloc(buf->ext_data, buf->used + add_len);
+			if (nbuf == NULL)
+				return -1;
+			memset(nbuf + buf->used, 0, add_len);
+			buf->ext_data = nbuf;
+		} else {
+#ifdef WPA_TRACE
+			nbuf = os_realloc(trace, sizeof(struct wpabuf_trace) +
+					  sizeof(struct wpabuf) +
+					  buf->used + add_len);
+			if (nbuf == NULL)
+				return -1;
+			trace = (struct wpabuf_trace *) nbuf;
+			buf = (struct wpabuf *) (trace + 1);
+			memset(nbuf + sizeof(struct wpabuf_trace) +
+				  sizeof(struct wpabuf) + buf->used, 0,
+				  add_len);
+#else /* WPA_TRACE */
+			nbuf = (unsigned char*)os_realloc(buf, sizeof(struct wpabuf) +
+					  buf->used + add_len);
+			if (nbuf == NULL)
+				return -1;
+			buf = (struct wpabuf *) nbuf;
+			memset(nbuf + sizeof(struct wpabuf) + buf->used, 0,
+				  add_len);
+#endif /* WPA_TRACE */
+			*_buf = buf;
+		}
+		buf->size = buf->used + add_len;
+	}
+
+	return 0;
+}
+
+
+/**
+ * wpabuf_alloc - Allocate a wpabuf of the given size
+ * @len: Length for the allocated buffer
+ * Returns: Buffer to the allocated wpabuf or %NULL on failure
+ */
+struct wpabuf * wpabuf_alloc(size_t len)
+{
+#ifdef WPA_TRACE
+	struct wpabuf_trace *trace = os_zalloc(sizeof(struct wpabuf_trace) +
+					       sizeof(struct wpabuf) + len);
+	struct wpabuf *buf;
+	if (trace == NULL)
+		return NULL;
+	trace->magic = WPABUF_MAGIC;
+	buf = (struct wpabuf *) (trace + 1);
+#else /* WPA_TRACE */
+	struct wpabuf *buf = (struct wpabuf *)os_zalloc(sizeof(struct wpabuf) + len);
+	if (buf == NULL)
+		return NULL;
+#endif /* WPA_TRACE */
+
+	buf->size = len;
+	return buf;
+}
+
+
+struct wpabuf * wpabuf_alloc_ext_data(u8 *data, size_t len)
+{
+#ifdef WPA_TRACE
+	struct wpabuf_trace *trace = os_zalloc(sizeof(struct wpabuf_trace) +
+					       sizeof(struct wpabuf));
+	struct wpabuf *buf;
+	if (trace == NULL)
+		return NULL;
+	trace->magic = WPABUF_MAGIC;
+	buf = (struct wpabuf *) (trace + 1);
+#else /* WPA_TRACE */
+	struct wpabuf *buf = (struct wpabuf *)os_zalloc(sizeof(struct wpabuf));
+	if (buf == NULL)
+		return NULL;
+#endif /* WPA_TRACE */
+
+	buf->size = len;
+	buf->used = len;
+	buf->ext_data = data;
+
+	return buf;
+}
+
+
+struct wpabuf * wpabuf_alloc_copy(const void *data, size_t len)
+{
+	struct wpabuf *buf = wpabuf_alloc(len);
+	if (buf)
+		wpabuf_put_data(buf, data, len);
+	return buf;
+}
+
+
+struct wpabuf * wpabuf_dup(const struct wpabuf *src)
+{
+	struct wpabuf *buf = wpabuf_alloc(wpabuf_len(src));
+	if (buf)
+		wpabuf_put_data(buf, wpabuf_head(src), wpabuf_len(src));
+	return buf;
+}
+
+
+/**
+ * wpabuf_free - Free a wpabuf
+ * @buf: wpabuf buffer
+ */
+void wpabuf_free(struct wpabuf *buf)
+{
+#ifdef WPA_TRACE
+	struct wpabuf_trace *trace;
+	if (buf == NULL)
+		return;
+	trace = wpabuf_get_trace(buf);
+	if (trace->magic != WPABUF_MAGIC) {
+		wpa_printf( MSG_ERROR,  "wpabuf_free: invalid magic %x",
+			   trace->magic);
+		abort();
+	}
+	os_free(buf->ext_data);
+	os_free(trace);
+#else /* WPA_TRACE */
+	if (buf == NULL)
+		return;
+	os_free(buf->ext_data);
+	os_free(buf);
+#endif /* WPA_TRACE */
+}
+
+
+void * wpabuf_put(struct wpabuf *buf, size_t len)
+{
+	void *tmp = wpabuf_mhead_u8(buf) + wpabuf_len(buf);
+	buf->used += len;
+	if (buf->used > buf->size) {
+		wpabuf_overflow(buf, len);
+	}
+	return tmp;
+}
+
+
+/**
+ * wpabuf_concat - Concatenate two buffers into a newly allocated one
+ * @a: First buffer
+ * @b: Second buffer
+ * Returns: wpabuf with concatenated a + b data or %NULL on failure
+ *
+ * Both buffers a and b will be freed regardless of the return value. Input
+ * buffers can be %NULL which is interpreted as an empty buffer.
+ */
+struct wpabuf * wpabuf_concat(struct wpabuf *a, struct wpabuf *b)
+{
+	struct wpabuf *n = NULL;
+	size_t len = 0;
+
+	if (b == NULL)
+		return a;
+
+	if (a)
+		len += wpabuf_len(a);
+	if (b)
+		len += wpabuf_len(b);
+
+	n = wpabuf_alloc(len);
+	if (n) {
+		if (a)
+			wpabuf_put_buf(n, a);
+		if (b)
+			wpabuf_put_buf(n, b);
+	}
+
+	wpabuf_free(a);
+	wpabuf_free(b);
+
+	return n;
+}
+
+
+/**
+ * wpabuf_zeropad - Pad buffer with 0x00 octets (prefix) to specified length
+ * @buf: Buffer to be padded
+ * @len: Length for the padded buffer
+ * Returns: wpabuf padded to len octets or %NULL on failure
+ *
+ * If buf is longer than len octets or of same size, it will be returned as-is.
+ * Otherwise a new buffer is allocated and prefixed with 0x00 octets followed
+ * by the source data. The source buffer will be freed on error, i.e., caller
+ * will only be responsible on freeing the returned buffer. If buf is %NULL,
+ * %NULL will be returned.
+ */
+struct wpabuf * wpabuf_zeropad(struct wpabuf *buf, size_t len)
+{
+	struct wpabuf *ret;
+	size_t blen;
+
+	if (buf == NULL)
+		return NULL;
+
+	blen = wpabuf_len(buf);
+	if (blen >= len)
+		return buf;
+
+	ret = wpabuf_alloc(len);
+	if (ret) {
+		memset(wpabuf_put(ret, len - blen), 0, len - blen);
+		wpabuf_put_buf(ret, buf);
+	}
+	wpabuf_free(buf);
+
+	return ret;
+}
+
+void wpabuf_printf(struct wpabuf *buf, char *fmt, ...)
+{
+	va_list ap;
+	void *tmp = wpabuf_mhead_u8(buf) + wpabuf_len(buf);
+	int res;
+
+	va_start(ap, fmt);
+        res = vsnprintf(tmp, buf->size - buf->used, fmt, ap);
+	va_end(ap);
+	if (res < 0 || (size_t) res >= buf->size - buf->used)
+		wpabuf_overflow(buf, res);
+	buf->used += res;
+}