wpa_supplicant: Update to 10-Sep-2012 TOT

commit 762b99db7a76803d1ad274e87caa6fe870d47441
Author: Jouni Malinen <j@w1.fi>
Date:   Mon Sep 10 12:33:29 2012 +0200

    Fix last_scan_res update existing BSS entry is update

Change-Id: I03f933bf6d7f7e36b0f8ac410fbc37990f127c18
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>

20 files changed, 881 insertions, 145 deletions

diff --git a/src/crypto/Makefile b/src/crypto/Makefile
index 18b5054..a605a65 100644
--- a/src/crypto/Makefile
+++ b/src/crypto/Makefile
@@ -16,9 +16,11 @@ CFLAGS += -DCONFIG_SHA256
 
 LIB_OBJS= \
 	aes-cbc.o \
+	aes-ccm.o \
 	aes-ctr.o \
 	aes-eax.o \
 	aes-encblock.o \
+	aes-gcm.o \
 	aes-internal.o \
 	aes-internal-dec.o \
 	aes-internal-enc.o \
diff --git a/src/crypto/aes-ccm.c b/src/crypto/aes-ccm.c
new file mode 100644
index 0000000..d14670d
--- /dev/null
+++ b/src/crypto/aes-ccm.c
@@ -0,0 +1,212 @@
+/*
+ * Counter with CBC-MAC (CCM) with AES
+ *
+ * Copyright (c) 2010-2012, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "includes.h"
+
+#include "common.h"
+#include "aes.h"
+#include "aes_wrap.h"
+
+
+static void xor_aes_block(u8 *dst, const u8 *src)
+{
+	u32 *d = (u32 *) dst;
+	u32 *s = (u32 *) src;
+	*d++ ^= *s++;
+	*d++ ^= *s++;
+	*d++ ^= *s++;
+	*d++ ^= *s++;
+}
+
+
+static void aes_ccm_auth_start(void *aes, size_t M, size_t L, const u8 *nonce,
+			       const u8 *aad, size_t aad_len, size_t plain_len,
+			       u8 *x)
+{
+	u8 aad_buf[2 * AES_BLOCK_SIZE];
+	u8 b[AES_BLOCK_SIZE];
+
+	/* Authentication */
+	/* B_0: Flags | Nonce N | l(m) */
+	b[0] = aad_len ? 0x40 : 0 /* Adata */;
+	b[0] |= (((M - 2) / 2) /* M' */ << 3);
+	b[0] |= (L - 1) /* L' */;
+	os_memcpy(&b[1], nonce, 15 - L);
+	WPA_PUT_BE16(&b[AES_BLOCK_SIZE - L], plain_len);
+
+	wpa_hexdump_key(MSG_EXCESSIVE, "CCM B_0", b, AES_BLOCK_SIZE);
+	aes_encrypt(aes, b, x); /* X_1 = E(K, B_0) */
+
+	if (!aad_len)
+		return;
+
+	WPA_PUT_BE16(aad_buf, aad_len);
+	os_memcpy(aad_buf + 2, aad, aad_len);
+	os_memset(aad_buf + 2 + aad_len, 0, sizeof(aad_buf) - 2 - aad_len);
+
+	xor_aes_block(aad_buf, x);
+	aes_encrypt(aes, aad_buf, x); /* X_2 = E(K, X_1 XOR B_1) */
+
+	if (aad_len > AES_BLOCK_SIZE - 2) {
+		xor_aes_block(&aad_buf[AES_BLOCK_SIZE], x);
+		/* X_3 = E(K, X_2 XOR B_2) */
+		aes_encrypt(aes, &aad_buf[AES_BLOCK_SIZE], x);
+	}
+}
+
+
+static void aes_ccm_auth(void *aes, const u8 *data, size_t len, u8 *x)
+{
+	size_t last = len % AES_BLOCK_SIZE;
+	size_t i;
+
+	for (i = 0; i < len / AES_BLOCK_SIZE; i++) {
+		/* X_i+1 = E(K, X_i XOR B_i) */
+		xor_aes_block(x, data);
+		data += AES_BLOCK_SIZE;
+		aes_encrypt(aes, x, x);
+	}
+	if (last) {
+		/* XOR zero-padded last block */
+		for (i = 0; i < last; i++)
+			x[i] ^= *data++;
+		aes_encrypt(aes, x, x);
+	}
+}
+
+
+static void aes_ccm_encr_start(size_t L, const u8 *nonce, u8 *a)
+{
+	/* A_i = Flags | Nonce N | Counter i */
+	a[0] = L - 1; /* Flags = L' */
+	os_memcpy(&a[1], nonce, 15 - L);
+}
+
+
+static void aes_ccm_encr(void *aes, size_t L, const u8 *in, size_t len, u8 *out,
+			 u8 *a)
+{
+	size_t last = len % AES_BLOCK_SIZE;
+	size_t i;
+
+	/* crypt = msg XOR (S_1 | S_2 | ... | S_n) */
+	for (i = 1; i <= len / AES_BLOCK_SIZE; i++) {
+		WPA_PUT_BE16(&a[AES_BLOCK_SIZE - 2], i);
+		/* S_i = E(K, A_i) */
+		aes_encrypt(aes, a, out);
+		xor_aes_block(out, in);
+		out += AES_BLOCK_SIZE;
+		in += AES_BLOCK_SIZE;
+	}
+	if (last) {
+		WPA_PUT_BE16(&a[AES_BLOCK_SIZE - 2], i);
+		aes_encrypt(aes, a, out);
+		/* XOR zero-padded last block */
+		for (i = 0; i < last; i++)
+			*out++ ^= *in++;
+	}
+}
+
+
+static void aes_ccm_encr_auth(void *aes, size_t M, u8 *x, u8 *a, u8 *auth)
+{
+	size_t i;
+	u8 tmp[AES_BLOCK_SIZE];
+
+	wpa_hexdump_key(MSG_EXCESSIVE, "CCM T", x, M);
+	/* U = T XOR S_0; S_0 = E(K, A_0) */
+	WPA_PUT_BE16(&a[AES_BLOCK_SIZE - 2], 0);
+	aes_encrypt(aes, a, tmp);
+	for (i = 0; i < M; i++)
+		auth[i] = x[i] ^ tmp[i];
+	wpa_hexdump_key(MSG_EXCESSIVE, "CCM U", auth, M);
+}
+
+
+static void aes_ccm_decr_auth(void *aes, size_t M, u8 *a, const u8 *auth, u8 *t)
+{
+	size_t i;
+	u8 tmp[AES_BLOCK_SIZE];
+
+	wpa_hexdump_key(MSG_EXCESSIVE, "CCM U", auth, M);
+	/* U = T XOR S_0; S_0 = E(K, A_0) */
+	WPA_PUT_BE16(&a[AES_BLOCK_SIZE - 2], 0);
+	aes_encrypt(aes, a, tmp);
+	for (i = 0; i < M; i++)
+		t[i] = auth[i] ^ tmp[i];
+	wpa_hexdump_key(MSG_EXCESSIVE, "CCM T", t, M);
+}
+
+
+/* AES-CCM with fixed L=2 and aad_len <= 30 assumption */
+int aes_ccm_ae(const u8 *key, size_t key_len, const u8 *nonce,
+	       size_t M, const u8 *plain, size_t plain_len,
+	       const u8 *aad, size_t aad_len, u8 *crypt, u8 *auth)
+{
+	const size_t L = 2;
+	void *aes;
+	u8 x[AES_BLOCK_SIZE], a[AES_BLOCK_SIZE];
+
+	if (aad_len > 30 || M > AES_BLOCK_SIZE)
+		return -1;
+
+	aes = aes_encrypt_init(key, key_len);
+	if (aes == NULL)
+		return -1;
+
+	aes_ccm_auth_start(aes, M, L, nonce, aad, aad_len, plain_len, x);
+	aes_ccm_auth(aes, plain, plain_len, x);
+
+	/* Encryption */
+	aes_ccm_encr_start(L, nonce, a);
+	aes_ccm_encr(aes, L, plain, plain_len, crypt, a);
+	aes_ccm_encr_auth(aes, M, x, a, auth);
+
+	aes_encrypt_deinit(aes);
+
+	return 0;
+}
+
+
+/* AES-CCM with fixed L=2 and aad_len <= 30 assumption */
+int aes_ccm_ad(const u8 *key, size_t key_len, const u8 *nonce,
+	       size_t M, const u8 *crypt, size_t crypt_len,
+	       const u8 *aad, size_t aad_len, const u8 *auth, u8 *plain)
+{
+	const size_t L = 2;
+	void *aes;
+	u8 x[AES_BLOCK_SIZE], a[AES_BLOCK_SIZE];
+	u8 t[AES_BLOCK_SIZE];
+
+	if (aad_len > 30 || M > AES_BLOCK_SIZE)
+		return -1;
+
+	aes = aes_encrypt_init(key, key_len);
+	if (aes == NULL)
+		return -1;
+
+	/* Decryption */
+	aes_ccm_encr_start(L, nonce, a);
+	aes_ccm_decr_auth(aes, M, a, auth, t);
+
+	/* plaintext = msg XOR (S_1 | S_2 | ... | S_n) */
+	aes_ccm_encr(aes, L, crypt, crypt_len, plain, a);
+
+	aes_ccm_auth_start(aes, M, L, nonce, aad, aad_len, crypt_len, x);
+	aes_ccm_auth(aes, plain, crypt_len, x);
+
+	aes_encrypt_deinit(aes);
+
+	if (os_memcmp(x, t, M) != 0) {
+		wpa_printf(MSG_EXCESSIVE, "CCM: Auth mismatch");
+		return -1;
+	}
+
+	return 0;
+}
diff --git a/src/crypto/aes-gcm.c b/src/crypto/aes-gcm.c
new file mode 100644
index 0000000..3d91c71
--- /dev/null
+++ b/src/crypto/aes-gcm.c
@@ -0,0 +1,327 @@
+/*
+ * Galois/Counter Mode (GCM) and GMAC with AES
+ *
+ * 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 "includes.h"
+
+#include "common.h"
+#include "aes.h"
+#include "aes_wrap.h"
+
+static void inc32(u8 *block)
+{
+	u32 val;
+	val = WPA_GET_BE32(block + AES_BLOCK_SIZE - 4);
+	val++;
+	WPA_PUT_BE32(block + AES_BLOCK_SIZE - 4, val);
+}
+
+
+static void xor_block(u8 *dst, const u8 *src)
+{
+	u32 *d = (u32 *) dst;
+	u32 *s = (u32 *) src;
+	*d++ ^= *s++;
+	*d++ ^= *s++;
+	*d++ ^= *s++;
+	*d++ ^= *s++;
+}
+
+
+static void shift_right_block(u8 *v)
+{
+	u32 val;
+
+	val = WPA_GET_BE32(v + 12);
+	val >>= 1;
+	if (v[11] & 0x01)
+		val |= 0x80000000;
+	WPA_PUT_BE32(v + 12, val);
+
+	val = WPA_GET_BE32(v + 8);
+	val >>= 1;
+	if (v[7] & 0x01)
+		val |= 0x80000000;
+	WPA_PUT_BE32(v + 8, val);
+
+	val = WPA_GET_BE32(v + 4);
+	val >>= 1;
+	if (v[3] & 0x01)
+		val |= 0x80000000;
+	WPA_PUT_BE32(v + 4, val);
+
+	val = WPA_GET_BE32(v);
+	val >>= 1;
+	WPA_PUT_BE32(v, val);
+}
+
+
+/* Multiplication in GF(2^128) */
+static void gf_mult(const u8 *x, const u8 *y, u8 *z)
+{
+	u8 v[16];
+	int i, j;
+
+	os_memset(z, 0, 16); /* Z_0 = 0^128 */
+	os_memcpy(v, y, 16); /* V_0 = Y */
+
+	for (i = 0; i < 16; i++) {
+		for (j = 0; j < 8; j++) {
+			if (x[i] & BIT(7 - j)) {
+				/* Z_(i + 1) = Z_i XOR V_i */
+				xor_block(z, v);
+			} else {
+				/* Z_(i + 1) = Z_i */
+			}
+
+			if (v[15] & 0x01) {
+				/* V_(i + 1) = (V_i >> 1) XOR R */
+				shift_right_block(v);
+				/* R = 11100001 || 0^120 */
+				v[0] ^= 0xe1;
+			} else {
+				/* V_(i + 1) = V_i >> 1 */
+				shift_right_block(v);
+			}
+		}
+	}
+}
+
+
+static void ghash_start(u8 *y)
+{
+	/* Y_0 = 0^128 */
+	os_memset(y, 0, 16);
+}
+
+
+static void ghash(const u8 *h, const u8 *x, size_t xlen, u8 *y)
+{
+	size_t m, i;
+	const u8 *xpos = x;
+	u8 tmp[16];
+
+	m = xlen / 16;
+
+	for (i = 0; i < m; i++) {
+		/* Y_i = (Y^(i-1) XOR X_i) dot H */
+		xor_block(y, xpos);
+		xpos += 16;
+
+		/* dot operation:
+		 * multiplication operation for binary Galois (finite) field of
+		 * 2^128 elements */
+		gf_mult(y, h, tmp);
+		os_memcpy(y, tmp, 16);
+	}
+
+	if (x + xlen > xpos) {
+		/* Add zero padded last block */
+		size_t last = x + xlen - xpos;
+		os_memcpy(tmp, xpos, last);
+		os_memset(tmp + last, 0, sizeof(tmp) - last);
+
+		/* Y_i = (Y^(i-1) XOR X_i) dot H */
+		xor_block(y, tmp);
+
+		/* dot operation:
+		 * multiplication operation for binary Galois (finite) field of
+		 * 2^128 elements */
+		gf_mult(y, h, tmp);
+		os_memcpy(y, tmp, 16);
+	}
+
+	/* Return Y_m */
+}
+
+
+static void aes_gctr(void *aes, const u8 *icb, const u8 *x, size_t xlen, u8 *y)
+{
+	size_t i, n, last;
+	u8 cb[AES_BLOCK_SIZE], tmp[AES_BLOCK_SIZE];
+	const u8 *xpos = x;
+	u8 *ypos = y;
+
+	if (xlen == 0)
+		return;
+
+	n = xlen / 16;
+
+	os_memcpy(cb, icb, AES_BLOCK_SIZE);
+	/* Full blocks */
+	for (i = 0; i < n; i++) {
+		aes_encrypt(aes, cb, ypos);
+		xor_block(ypos, xpos);
+		xpos += AES_BLOCK_SIZE;
+		ypos += AES_BLOCK_SIZE;
+		inc32(cb);
+	}
+
+	last = x + xlen - xpos;
+	if (last) {
+		/* Last, partial block */
+		aes_encrypt(aes, cb, tmp);
+		for (i = 0; i < last; i++)
+			*ypos++ = *xpos++ ^ tmp[i];
+	}
+}
+
+
+static void * aes_gcm_init_hash_subkey(const u8 *key, size_t key_len, u8 *H)
+{
+	void *aes;
+
+	aes = aes_encrypt_init(key, key_len);
+	if (aes == NULL)
+		return NULL;
+
+	/* Generate hash subkey H = AES_K(0^128) */
+	os_memset(H, 0, AES_BLOCK_SIZE);
+	aes_encrypt(aes, H, H);
+	wpa_hexdump_key(MSG_EXCESSIVE, "Hash subkey H for GHASH",
+			H, AES_BLOCK_SIZE);
+	return aes;
+}
+
+
+static void aes_gcm_prepare_j0(const u8 *iv, size_t iv_len, const u8 *H, u8 *J0)
+{
+	u8 len_buf[16];
+
+	if (iv_len == 12) {
+		/* Prepare block J_0 = IV || 0^31 || 1 [len(IV) = 96] */
+		os_memcpy(J0, iv, iv_len);
+		os_memset(J0 + iv_len, 0, AES_BLOCK_SIZE - iv_len);
+		J0[AES_BLOCK_SIZE - 1] = 0x01;
+	} else {
+		/*
+		 * s = 128 * ceil(len(IV)/128) - len(IV)
+		 * J_0 = GHASH_H(IV || 0^(s+64) || [len(IV)]_64)
+		 */
+		ghash_start(J0);
+		ghash(H, iv, iv_len, J0);
+		WPA_PUT_BE64(len_buf, 0);
+		WPA_PUT_BE64(len_buf + 8, iv_len * 8);
+		ghash(H, len_buf, sizeof(len_buf), J0);
+	}
+}
+
+
+static void aes_gcm_gctr(void *aes, const u8 *J0, const u8 *in, size_t len,
+			 u8 *out)
+{
+	u8 J0inc[AES_BLOCK_SIZE];
+
+	if (len == 0)
+		return;
+
+	os_memcpy(J0inc, J0, AES_BLOCK_SIZE);
+	inc32(J0inc);
+	aes_gctr(aes, J0inc, in, len, out);
+}
+
+
+static void aes_gcm_ghash(const u8 *H, const u8 *aad, size_t aad_len,
+			  const u8 *crypt, size_t crypt_len, u8 *S)
+{
+	u8 len_buf[16];
+
+	/*
+	 * u = 128 * ceil[len(C)/128] - len(C)
+	 * v = 128 * ceil[len(A)/128] - len(A)
+	 * S = GHASH_H(A || 0^v || C || 0^u || [len(A)]64 || [len(C)]64)
+	 * (i.e., zero padded to block size A || C and lengths of each in bits)
+	 */
+	ghash_start(S);
+	ghash(H, aad, aad_len, S);
+	ghash(H, crypt, crypt_len, S);
+	WPA_PUT_BE64(len_buf, aad_len * 8);
+	WPA_PUT_BE64(len_buf + 8, crypt_len * 8);
+	ghash(H, len_buf, sizeof(len_buf), S);
+
+	wpa_hexdump_key(MSG_EXCESSIVE, "S = GHASH_H(...)", S, 16);
+}
+
+
+/**
+ * aes_gcm_ae - GCM-AE_K(IV, P, A)
+ */
+int aes_gcm_ae(const u8 *key, size_t key_len, const u8 *iv, size_t iv_len,
+	       const u8 *plain, size_t plain_len,
+	       const u8 *aad, size_t aad_len, u8 *crypt, u8 *tag)
+{
+	u8 H[AES_BLOCK_SIZE];
+	u8 J0[AES_BLOCK_SIZE];
+	u8 S[16];
+	void *aes;
+
+	aes = aes_gcm_init_hash_subkey(key, key_len, H);
+	if (aes == NULL)
+		return -1;
+
+	aes_gcm_prepare_j0(iv, iv_len, H, J0);
+
+	/* C = GCTR_K(inc_32(J_0), P) */
+	aes_gcm_gctr(aes, J0, plain, plain_len, crypt);
+
+	aes_gcm_ghash(H, aad, aad_len, crypt, plain_len, S);
+
+	/* T = MSB_t(GCTR_K(J_0, S)) */
+	aes_gctr(aes, J0, S, sizeof(S), tag);
+
+	/* Return (C, T) */
+
+	aes_encrypt_deinit(aes);
+
+	return 0;
+}
+
+
+/**
+ * aes_gcm_ad - GCM-AD_K(IV, C, A, T)
+ */
+int aes_gcm_ad(const u8 *key, size_t key_len, const u8 *iv, size_t iv_len,
+	       const u8 *crypt, size_t crypt_len,
+	       const u8 *aad, size_t aad_len, const u8 *tag, u8 *plain)
+{
+	u8 H[AES_BLOCK_SIZE];
+	u8 J0[AES_BLOCK_SIZE];
+	u8 S[16], T[16];
+	void *aes;
+
+	aes = aes_gcm_init_hash_subkey(key, key_len, H);
+	if (aes == NULL)
+		return -1;
+
+	aes_gcm_prepare_j0(iv, iv_len, H, J0);
+
+	/* P = GCTR_K(inc_32(J_0), C) */
+	aes_gcm_gctr(aes, J0, crypt, crypt_len, plain);
+
+	aes_gcm_ghash(H, aad, aad_len, crypt, crypt_len, S);
+
+	/* T' = MSB_t(GCTR_K(J_0, S)) */
+	aes_gctr(aes, J0, S, sizeof(S), T);
+
+	aes_encrypt_deinit(aes);
+
+	if (os_memcmp(tag, T, 16) != 0) {
+		wpa_printf(MSG_EXCESSIVE, "GCM: Tag mismatch");
+		return -1;
+	}
+
+	return 0;
+}
+
+
+int aes_gmac(const u8 *key, size_t key_len, const u8 *iv, size_t iv_len,
+	     const u8 *aad, size_t aad_len, u8 *tag)
+{
+	return aes_gcm_ae(key, key_len, iv, iv_len, NULL, 0, aad, aad_len, NULL,
+			  tag);
+}
diff --git a/src/crypto/aes-internal-dec.c b/src/crypto/aes-internal-dec.c
index 70ce310..720c703 100644
--- a/src/crypto/aes-internal-dec.c
+++ b/src/crypto/aes-internal-dec.c
@@ -2,14 +2,13 @@
  * AES (Rijndael) cipher - decrypt
  *
  * Modifications to public domain implementation:
- * - support only 128-bit keys
  * - cleanup
  * - use C pre-processor to make it easier to change S table access
  * - added option (AES_SMALL_TABLES) for reducing code size by about 8 kB at
  *   cost of reduced throughput (quite small difference on Pentium 4,
  *   10-25% when using -O1 or -O2 optimization)
  *
- * Copyright (c) 2003-2005, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
  *
  * This software may be distributed under the terms of the BSD license.
  * See README for more details.
@@ -26,13 +25,15 @@
  *
  * @return	the number of rounds for the given cipher key size.
  */
-static void rijndaelKeySetupDec(u32 rk[/*44*/], const u8 cipherKey[])
+static int rijndaelKeySetupDec(u32 rk[], const u8 cipherKey[], int keyBits)
 {
-	int Nr = 10, i, j;
+	int Nr, i, j;
 	u32 temp;
 
 	/* expand the cipher key: */
-	rijndaelKeySetupEnc(rk, cipherKey);
+	Nr = rijndaelKeySetupEnc(rk, cipherKey, keyBits);
+	if (Nr < 0)
+		return Nr;
 	/* invert the order of the round keys: */
 	for (i = 0, j = 4*Nr; i < j; i += 4, j -= 4) {
 		temp = rk[i    ]; rk[i    ] = rk[j    ]; rk[j    ] = temp;
@@ -51,24 +52,30 @@ static void rijndaelKeySetupDec(u32 rk[/*44*/], const u8 cipherKey[])
 				TD3_(TE4((rk[j]      ) & 0xff));
 		}
 	}
+
+	return Nr;
 }
 
 void * aes_decrypt_init(const u8 *key, size_t len)
 {
 	u32 *rk;
-	if (len != 16)
-		return NULL;
+	int res;
 	rk = os_malloc(AES_PRIV_SIZE);
 	if (rk == NULL)
 		return NULL;
-	rijndaelKeySetupDec(rk, key);
+	res = rijndaelKeySetupDec(rk, key, len * 8);
+	if (res < 0) {
+		os_free(rk);
+		return NULL;
+	}
+	rk[AES_PRIV_NR_POS] = res;
 	return rk;
 }
 
-static void rijndaelDecrypt(const u32 rk[/*44*/], const u8 ct[16], u8 pt[16])
+static void rijndaelDecrypt(const u32 rk[/*44*/], int Nr, const u8 ct[16],
+			    u8 pt[16])
 {
 	u32 s0, s1, s2, s3, t0, t1, t2, t3;
-	const int Nr = 10;
 #ifndef FULL_UNROLL
 	int r;
 #endif /* ?FULL_UNROLL */
@@ -99,6 +106,14 @@ d##3 = TD0(s##3) ^ TD1(s##2) ^ TD2(s##1) ^ TD3(s##0) ^ rk[4 * i + 3]
 	ROUND(7,t,s);
 	ROUND(8,s,t);
 	ROUND(9,t,s);
+	if (Nr > 10) {
+		ROUND(10,s,t);
+		ROUND(11,t,s);
+		if (Nr > 12) {
+			ROUND(12,s,t);
+			ROUND(13,t,s);
+		}
+	}
 
 	rk += Nr << 2;
 
@@ -134,7 +149,8 @@ d##3 = TD0(s##3) ^ TD1(s##2) ^ TD2(s##1) ^ TD3(s##0) ^ rk[4 * i + 3]
 
 void aes_decrypt(void *ctx, const u8 *crypt, u8 *plain)
 {
-	rijndaelDecrypt(ctx, crypt, plain);
+	u32 *rk = ctx;
+	rijndaelDecrypt(ctx, rk[AES_PRIV_NR_POS], crypt, plain);
 }
 
 
diff --git a/src/crypto/aes-internal-enc.c b/src/crypto/aes-internal-enc.c
index 645bc92..f3c61b8 100644
--- a/src/crypto/aes-internal-enc.c
+++ b/src/crypto/aes-internal-enc.c
@@ -2,14 +2,13 @@
  * AES (Rijndael) cipher - encrypt
  *
  * Modifications to public domain implementation:
- * - support only 128-bit keys
  * - cleanup
  * - use C pre-processor to make it easier to change S table access
  * - added option (AES_SMALL_TABLES) for reducing code size by about 8 kB at
  *   cost of reduced throughput (quite small difference on Pentium 4,
  *   10-25% when using -O1 or -O2 optimization)
  *
- * Copyright (c) 2003-2005, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
  *
  * This software may be distributed under the terms of the BSD license.
  * See README for more details.
@@ -21,10 +20,9 @@
 #include "crypto.h"
 #include "aes_i.h"
 
-static void rijndaelEncrypt(const u32 rk[/*44*/], const u8 pt[16], u8 ct[16])
+static void rijndaelEncrypt(const u32 rk[], int Nr, const u8 pt[16], u8 ct[16])
 {
 	u32 s0, s1, s2, s3, t0, t1, t2, t3;
-	const int Nr = 10;
 #ifndef FULL_UNROLL
 	int r;
 #endif /* ?FULL_UNROLL */
@@ -55,6 +53,14 @@ d##3 = TE0(s##3) ^ TE1(s##0) ^ TE2(s##1) ^ TE3(s##2) ^ rk[4 * i + 3]
 	ROUND(7,t,s);
 	ROUND(8,s,t);
 	ROUND(9,t,s);
+	if (Nr > 10) {
+		ROUND(10,s,t);
+		ROUND(11,t,s);
+		if (Nr > 12) {
+			ROUND(12,s,t);
+			ROUND(13,t,s);
+		}
+	}
 
 	rk += Nr << 2;
 
@@ -92,19 +98,24 @@ d##3 = TE0(s##3) ^ TE1(s##0) ^ TE2(s##1) ^ TE3(s##2) ^ rk[4 * i + 3]
 void * aes_encrypt_init(const u8 *key, size_t len)
 {
 	u32 *rk;
-	if (len != 16)
-		return NULL;
+	int res;
 	rk = os_malloc(AES_PRIV_SIZE);
 	if (rk == NULL)
 		return NULL;
-	rijndaelKeySetupEnc(rk, key);
+	res = rijndaelKeySetupEnc(rk, key, len * 8);
+	if (res < 0) {
+		os_free(rk);
+		return NULL;
+	}
+	rk[AES_PRIV_NR_POS] = res;
 	return rk;
 }
 
 
 void aes_encrypt(void *ctx, const u8 *plain, u8 *crypt)
 {
-	rijndaelEncrypt(ctx, plain, crypt);
+	u32 *rk = ctx;
+	rijndaelEncrypt(ctx, rk[AES_PRIV_NR_POS], plain, crypt);
 }
 
 
diff --git a/src/crypto/aes-internal.c b/src/crypto/aes-internal.c
index 698606f..bd4535d 100644
--- a/src/crypto/aes-internal.c
+++ b/src/crypto/aes-internal.c
@@ -2,14 +2,13 @@
  * AES (Rijndael) cipher
  *
  * Modifications to public domain implementation:
- * - support only 128-bit keys
  * - cleanup
  * - use C pre-processor to make it easier to change S table access
  * - added option (AES_SMALL_TABLES) for reducing code size by about 8 kB at
  *   cost of reduced throughput (quite small difference on Pentium 4,
  *   10-25% when using -O1 or -O2 optimization)
  *
- * Copyright (c) 2003-2005, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
  *
  * This software may be distributed under the terms of the BSD license.
  * See README for more details.
@@ -777,7 +776,7 @@ const u8 rcons[] = {
  *
  * @return	the number of rounds for the given cipher key size.
  */
-void rijndaelKeySetupEnc(u32 rk[/*44*/], const u8 cipherKey[])
+int rijndaelKeySetupEnc(u32 rk[], const u8 cipherKey[], int keyBits)
 {
 	int i;
 	u32 temp;
@@ -786,14 +785,61 @@ void rijndaelKeySetupEnc(u32 rk[/*44*/], const u8 cipherKey[])
 	rk[1] = GETU32(cipherKey +  4);
 	rk[2] = GETU32(cipherKey +  8);
 	rk[3] = GETU32(cipherKey + 12);
-	for (i = 0; i < 10; i++) {
-		temp  = rk[3];
-		rk[4] = rk[0] ^
-			TE421(temp) ^ TE432(temp) ^ TE443(temp) ^ TE414(temp) ^
-			RCON(i);
-		rk[5] = rk[1] ^ rk[4];
-		rk[6] = rk[2] ^ rk[5];
-		rk[7] = rk[3] ^ rk[6];
-		rk += 4;
+
+	if (keyBits == 128) {
+		for (i = 0; i < 10; i++) {
+			temp  = rk[3];
+			rk[4] = rk[0] ^ TE421(temp) ^ TE432(temp) ^
+				TE443(temp) ^ TE414(temp) ^ RCON(i);
+			rk[5] = rk[1] ^ rk[4];
+			rk[6] = rk[2] ^ rk[5];
+			rk[7] = rk[3] ^ rk[6];
+			rk += 4;
+		}
+		return 10;
+	}
+
+	rk[4] = GETU32(cipherKey + 16);
+	rk[5] = GETU32(cipherKey + 20);
+
+	if (keyBits == 192) {
+		for (i = 0; i < 8; i++) {
+			temp  = rk[5];
+			rk[6] = rk[0] ^ TE421(temp) ^ TE432(temp) ^
+				TE443(temp) ^ TE414(temp) ^ RCON(i);
+			rk[7] = rk[1] ^ rk[6];
+			rk[8] = rk[2] ^ rk[7];
+			rk[9] = rk[3] ^ rk[8];
+			if (i == 7)
+				return 12;
+			rk[10] = rk[4] ^ rk[9];
+			rk[11] = rk[5] ^ rk[10];
+			rk += 6;
+		}
 	}
+
+	rk[6] = GETU32(cipherKey + 24);
+	rk[7] = GETU32(cipherKey + 28);
+
+	if (keyBits == 256) {
+		for (i = 0; i < 7; i++) {
+			temp  = rk[7];
+			rk[8] = rk[0] ^ TE421(temp) ^ TE432(temp) ^
+				TE443(temp) ^ TE414(temp) ^ RCON(i);
+			rk[9] = rk[1] ^ rk[8];
+			rk[10] = rk[2] ^ rk[9];
+			rk[11] = rk[3] ^ rk[10];
+			if (i == 6)
+				return 14;
+			temp  = rk[11];
+			rk[12] = rk[4] ^ TE411(temp) ^ TE422(temp) ^
+				TE433(temp) ^ TE444(temp);
+			rk[13] = rk[5] ^ rk[12];
+			rk[14] = rk[6] ^ rk[13];
+			rk[15] = rk[7] ^ rk[14];
+			rk += 8;
+		}
+	}
+
+	return -1;
 }
diff --git a/src/crypto/aes_i.h b/src/crypto/aes_i.h
index 163d4f6..54375cf 100644
--- a/src/crypto/aes_i.h
+++ b/src/crypto/aes_i.h
@@ -1,6 +1,6 @@
 /*
  * AES (Rijndael) cipher
- * Copyright (c) 2003-2005, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
  *
  * This software may be distributed under the terms of the BSD license.
  * See README for more details.
@@ -44,6 +44,10 @@ extern const u8 rcons[10];
 #define TE432(i) (Te4[((i) >> 8) & 0xff] & 0x00ff0000)
 #define TE443(i) (Te4[(i) & 0xff] & 0x0000ff00)
 #define TE414(i) (Te4[((i) >> 24) & 0xff] & 0x000000ff)
+#define TE411(i) (Te4[((i) >> 24) & 0xff] & 0xff000000)
+#define TE422(i) (Te4[((i) >> 16) & 0xff] & 0x00ff0000)
+#define TE433(i) (Te4[((i) >> 8) & 0xff] & 0x0000ff00)
+#define TE444(i) (Te4[(i) & 0xff] & 0x000000ff)
 #define TE4(i) (Te4[(i)] & 0x000000ff)
 
 #define TD0(i) Td0[((i) >> 24) & 0xff]
@@ -80,6 +84,10 @@ static inline u32 rotr(u32 val, int bits)
 #define TE432(i) (Te0[((i) >> 8) & 0xff] & 0x00ff0000)
 #define TE443(i) (Te0[(i) & 0xff] & 0x0000ff00)
 #define TE414(i) ((Te0[((i) >> 24) & 0xff] >> 8) & 0x000000ff)
+#define TE411(i) ((Te0[((i) >> 24) & 0xff] << 8) & 0xff000000)
+#define TE422(i) (Te0[((i) >> 16) & 0xff] & 0x00ff0000)
+#define TE433(i) (Te0[((i) >> 8) & 0xff] & 0x0000ff00)
+#define TE444(i) ((Te0[(i) & 0xff] >> 8) & 0x000000ff)
 #define TE4(i) ((Te0[(i)] >> 8) & 0x000000ff)
 
 #define TD0(i) Td0[((i) >> 24) & 0xff]
@@ -109,8 +117,9 @@ static inline u32 rotr(u32 val, int bits)
 (ct)[2] = (u8)((st) >>  8); (ct)[3] = (u8)(st); }
 #endif
 
-#define AES_PRIV_SIZE (4 * 44)
+#define AES_PRIV_SIZE (4 * 4 * 15 + 4)
+#define AES_PRIV_NR_POS (4 * 15)
 
-void rijndaelKeySetupEnc(u32 rk[/*44*/], const u8 cipherKey[]);
+int rijndaelKeySetupEnc(u32 rk[], const u8 cipherKey[], int keyBits);
 
 #endif /* AES_I_H */
diff --git a/src/crypto/aes_wrap.h b/src/crypto/aes_wrap.h
index 4791792..0433c04 100644
--- a/src/crypto/aes_wrap.h
+++ b/src/crypto/aes_wrap.h
@@ -6,8 +6,10 @@
  * - AES-128 CTR mode encryption
  * - AES-128 EAX mode encryption/decryption
  * - AES-128 CBC
+ * - AES-GCM
+ * - AES-CCM
  *
- * Copyright (c) 2003-2007, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
  *
  * This software may be distributed under the terms of the BSD license.
  * See README for more details.
@@ -38,5 +40,25 @@ int __must_check aes_128_cbc_encrypt(const u8 *key, const u8 *iv, u8 *data,
 				     size_t data_len);
 int __must_check aes_128_cbc_decrypt(const u8 *key, const u8 *iv, u8 *data,
 				     size_t data_len);
+int __must_check aes_gcm_ae(const u8 *key, size_t key_len,
+			    const u8 *iv, size_t iv_len,
+			    const u8 *plain, size_t plain_len,
+			    const u8 *aad, size_t aad_len,
+			    u8 *crypt, u8 *tag);
+int __must_check aes_gcm_ad(const u8 *key, size_t key_len,
+			    const u8 *iv, size_t iv_len,
+			    const u8 *crypt, size_t crypt_len,
+			    const u8 *aad, size_t aad_len, const u8 *tag,
+			    u8 *plain);
+int __must_check aes_gmac(const u8 *key, size_t key_len,
+			  const u8 *iv, size_t iv_len,
+			  const u8 *aad, size_t aad_len, u8 *tag);
+int __must_check aes_ccm_ae(const u8 *key, size_t key_len, const u8 *nonce,
+			    size_t M, const u8 *plain, size_t plain_len,
+			    const u8 *aad, size_t aad_len, u8 *crypt, u8 *auth);
+int __must_check aes_ccm_ad(const u8 *key, size_t key_len, const u8 *nonce,
+			    size_t M, const u8 *crypt, size_t crypt_len,
+			    const u8 *aad, size_t aad_len, const u8 *auth,
+			    u8 *plain);
 
 #endif /* AES_WRAP_H */
diff --git a/src/crypto/crypto_internal-cipher.c b/src/crypto/crypto_internal-cipher.c
index 4bd711d..ad0930a 100644
--- a/src/crypto/crypto_internal-cipher.c
+++ b/src/crypto/crypto_internal-cipher.c
@@ -24,7 +24,6 @@ struct crypto_cipher {
 		} rc4;
 		struct {
 			u8 cbc[32];
-			size_t block_size;
 			void *ctx_enc;
 			void *ctx_dec;
 		} aes;
@@ -63,10 +62,6 @@ struct crypto_cipher * crypto_cipher_init(enum crypto_cipher_alg alg,
 		os_memcpy(ctx->u.rc4.key, key, key_len);
 		break;
 	case CRYPTO_CIPHER_ALG_AES:
-		if (key_len > sizeof(ctx->u.aes.cbc)) {
-			os_free(ctx);
-			return NULL;
-		}
 		ctx->u.aes.ctx_enc = aes_encrypt_init(key, key_len);
 		if (ctx->u.aes.ctx_enc == NULL) {
 			os_free(ctx);
@@ -78,8 +73,7 @@ struct crypto_cipher * crypto_cipher_init(enum crypto_cipher_alg alg,
 			os_free(ctx);
 			return NULL;
 		}
-		ctx->u.aes.block_size = key_len;
-		os_memcpy(ctx->u.aes.cbc, iv, ctx->u.aes.block_size);
+		os_memcpy(ctx->u.aes.cbc, iv, AES_BLOCK_SIZE);
 		break;
 	case CRYPTO_CIPHER_ALG_3DES:
 		if (key_len != 24) {
@@ -120,18 +114,17 @@ int crypto_cipher_encrypt(struct crypto_cipher *ctx, const u8 *plain,
 		ctx->u.rc4.used_bytes += len;
 		break;
 	case CRYPTO_CIPHER_ALG_AES:
-		if (len % ctx->u.aes.block_size)
+		if (len % AES_BLOCK_SIZE)
 			return -1;
-		blocks = len / ctx->u.aes.block_size;
+		blocks = len / AES_BLOCK_SIZE;
 		for (i = 0; i < blocks; i++) {
-			for (j = 0; j < ctx->u.aes.block_size; j++)
+			for (j = 0; j < AES_BLOCK_SIZE; j++)
 				ctx->u.aes.cbc[j] ^= plain[j];
 			aes_encrypt(ctx->u.aes.ctx_enc, ctx->u.aes.cbc,
 				    ctx->u.aes.cbc);
-			os_memcpy(crypt, ctx->u.aes.cbc,
-				  ctx->u.aes.block_size);
-			plain += ctx->u.aes.block_size;
-			crypt += ctx->u.aes.block_size;
+			os_memcpy(crypt, ctx->u.aes.cbc, AES_BLOCK_SIZE);
+			plain += AES_BLOCK_SIZE;
+			crypt += AES_BLOCK_SIZE;
 		}
 		break;
 	case CRYPTO_CIPHER_ALG_3DES:
@@ -185,17 +178,17 @@ int crypto_cipher_decrypt(struct crypto_cipher *ctx, const u8 *crypt,
 		ctx->u.rc4.used_bytes += len;
 		break;
 	case CRYPTO_CIPHER_ALG_AES:
-		if (len % ctx->u.aes.block_size)
+		if (len % AES_BLOCK_SIZE)
 			return -1;
-		blocks = len / ctx->u.aes.block_size;
+		blocks = len / AES_BLOCK_SIZE;
 		for (i = 0; i < blocks; i++) {
-			os_memcpy(tmp, crypt, ctx->u.aes.block_size);
+			os_memcpy(tmp, crypt, AES_BLOCK_SIZE);
 			aes_decrypt(ctx->u.aes.ctx_dec, crypt, plain);
-			for (j = 0; j < ctx->u.aes.block_size; j++)
+			for (j = 0; j < AES_BLOCK_SIZE; j++)
 				plain[j] ^= ctx->u.aes.cbc[j];
-			os_memcpy(ctx->u.aes.cbc, tmp, ctx->u.aes.block_size);
-			plain += ctx->u.aes.block_size;
-			crypt += ctx->u.aes.block_size;
+			os_memcpy(ctx->u.aes.cbc, tmp, AES_BLOCK_SIZE);
+			plain += AES_BLOCK_SIZE;
+			crypt += AES_BLOCK_SIZE;
 		}
 		break;
 	case CRYPTO_CIPHER_ALG_3DES:
diff --git a/src/tls/tlsv1_client.c b/src/tls/tlsv1_client.c
index c5cd362..12148b6 100644
--- a/src/tls/tlsv1_client.c
+++ b/src/tls/tlsv1_client.c
@@ -459,10 +459,8 @@ struct tlsv1_client * tlsv1_client_init(void)
 
 	count = 0;
 	suites = conn->cipher_suites;
-#ifndef CONFIG_CRYPTO_INTERNAL
 	suites[count++] = TLS_RSA_WITH_AES_256_CBC_SHA256;
 	suites[count++] = TLS_RSA_WITH_AES_256_CBC_SHA;
-#endif /* CONFIG_CRYPTO_INTERNAL */
 	suites[count++] = TLS_RSA_WITH_AES_128_CBC_SHA256;
 	suites[count++] = TLS_RSA_WITH_AES_128_CBC_SHA;
 	suites[count++] = TLS_RSA_WITH_3DES_EDE_CBC_SHA;
@@ -735,10 +733,8 @@ int tlsv1_client_set_cipher_list(struct tlsv1_client *conn, u8 *ciphers)
 	if (ciphers[0] == TLS_CIPHER_ANON_DH_AES128_SHA) {
 		count = 0;
 		suites = conn->cipher_suites;
-#ifndef CONFIG_CRYPTO_INTERNAL
 		suites[count++] = TLS_DH_anon_WITH_AES_256_CBC_SHA256;
 		suites[count++] = TLS_DH_anon_WITH_AES_256_CBC_SHA;
-#endif /* CONFIG_CRYPTO_INTERNAL */
 		suites[count++] = TLS_DH_anon_WITH_AES_128_CBC_SHA256;
 		suites[count++] = TLS_DH_anon_WITH_AES_128_CBC_SHA;
 		suites[count++] = TLS_DH_anon_WITH_3DES_EDE_CBC_SHA;
diff --git a/src/tls/tlsv1_server.c b/src/tls/tlsv1_server.c
index 72e2716..2880309 100644
--- a/src/tls/tlsv1_server.c
+++ b/src/tls/tlsv1_server.c
@@ -361,9 +361,7 @@ struct tlsv1_server * tlsv1_server_init(struct tlsv1_credentials *cred)
 
 	count = 0;
 	suites = conn->cipher_suites;
-#ifndef CONFIG_CRYPTO_INTERNAL
 	suites[count++] = TLS_RSA_WITH_AES_256_CBC_SHA;
-#endif /* CONFIG_CRYPTO_INTERNAL */
 	suites[count++] = TLS_RSA_WITH_AES_128_CBC_SHA;
 	suites[count++] = TLS_RSA_WITH_3DES_EDE_CBC_SHA;
 	suites[count++] = TLS_RSA_WITH_RC4_128_SHA;
@@ -587,16 +585,12 @@ int tlsv1_server_set_cipher_list(struct tlsv1_server *conn, u8 *ciphers)
 	if (ciphers[0] == TLS_CIPHER_ANON_DH_AES128_SHA) {
 		count = 0;
 		suites = conn->cipher_suites;
-#ifndef CONFIG_CRYPTO_INTERNAL
 		suites[count++] = TLS_RSA_WITH_AES_256_CBC_SHA;
-#endif /* CONFIG_CRYPTO_INTERNAL */
 		suites[count++] = TLS_RSA_WITH_AES_128_CBC_SHA;
 		suites[count++] = TLS_RSA_WITH_3DES_EDE_CBC_SHA;
 		suites[count++] = TLS_RSA_WITH_RC4_128_SHA;
 		suites[count++] = TLS_RSA_WITH_RC4_128_MD5;
-#ifndef CONFIG_CRYPTO_INTERNAL
 		suites[count++] = TLS_DH_anon_WITH_AES_256_CBC_SHA;
-#endif /* CONFIG_CRYPTO_INTERNAL */
 		suites[count++] = TLS_DH_anon_WITH_AES_128_CBC_SHA;
 		suites[count++] = TLS_DH_anon_WITH_3DES_EDE_CBC_SHA;
 		suites[count++] = TLS_DH_anon_WITH_RC4_128_MD5;
diff --git a/wpa_supplicant/android.config b/wpa_supplicant/android.config
index d71d1d3..58d0c43 100644
--- a/wpa_supplicant/android.config
+++ b/wpa_supplicant/android.config
@@ -489,6 +489,9 @@ CONFIG_IEEE80211N=y
 # selection based on available credentials).
 #CONFIG_INTERWORKING=y
 
+# Hotspot 2.0
+#CONFIG_HS20=y
+
 # Disable roaming in wpa_supplicant
 CONFIG_NO_ROAMING=y
 
diff --git a/wpa_supplicant/bss.c b/wpa_supplicant/bss.c
index d326bef..6223beb 100644
--- a/wpa_supplicant/bss.c
+++ b/wpa_supplicant/bss.c
@@ -96,6 +96,19 @@ static void wpa_bss_anqp_free(struct wpa_bss_anqp *anqp)
 static void wpa_bss_remove(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
 			   const char *reason)
 {
+	if (wpa_s->last_scan_res) {
+		unsigned int i;
+		for (i = 0; i < wpa_s->last_scan_res_used; i++) {
+			if (wpa_s->last_scan_res[i] == bss) {
+				os_memmove(&wpa_s->last_scan_res[i],
+					   &wpa_s->last_scan_res[i + 1],
+					   (wpa_s->last_scan_res_used - i - 1)
+					   * sizeof(struct wpa_bss *));
+				wpa_s->last_scan_res_used--;
+				break;
+			}
+		}
+	}
 	dl_list_del(&bss->list);
 	dl_list_del(&bss->list_id);
 	wpa_s->num_bss--;
@@ -213,15 +226,15 @@ static int wpa_bss_remove_oldest(struct wpa_supplicant *wpa_s)
 }
 
 
-static void wpa_bss_add(struct wpa_supplicant *wpa_s,
-			const u8 *ssid, size_t ssid_len,
-			struct wpa_scan_res *res)
+static struct wpa_bss * wpa_bss_add(struct wpa_supplicant *wpa_s,
+				    const u8 *ssid, size_t ssid_len,
+				    struct wpa_scan_res *res)
 {
 	struct wpa_bss *bss;
 
 	bss = os_zalloc(sizeof(*bss) + res->ie_len + res->beacon_ie_len);
 	if (bss == NULL)
-		return;
+		return NULL;
 	bss->id = wpa_s->bss_next_id++;
 	bss->last_update_idx = wpa_s->bss_update_idx;
 	wpa_bss_copy_res(bss, res);
@@ -246,6 +259,7 @@ static void wpa_bss_add(struct wpa_supplicant *wpa_s,
 			   "not get here!", (int) wpa_s->num_bss);
 		wpa_s->conf->bss_max_count = wpa_s->num_bss;
 	}
+	return bss;
 }
 
 
@@ -377,8 +391,9 @@ static void notify_bss_changes(struct wpa_supplicant *wpa_s, u32 changes,
 }
 
 
-static void wpa_bss_update(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
-			   struct wpa_scan_res *res)
+static struct wpa_bss *
+wpa_bss_update(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
+	       struct wpa_scan_res *res)
 {
 	u32 changes;
 
@@ -400,6 +415,13 @@ static void wpa_bss_update(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
 		nbss = os_realloc(bss, sizeof(*bss) + res->ie_len +
 				  res->beacon_ie_len);
 		if (nbss) {
+			unsigned int i;
+			for (i = 0; i < wpa_s->last_scan_res_used; i++) {
+				if (wpa_s->last_scan_res[i] == bss) {
+					wpa_s->last_scan_res[i] = nbss;
+					break;
+				}
+			}
 			if (wpa_s->current_bss == bss)
 				wpa_s->current_bss = nbss;
 			bss = nbss;
@@ -415,6 +437,8 @@ static void wpa_bss_update(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
 	dl_list_add_tail(&wpa_s->bss, &bss->list);
 
 	notify_bss_changes(wpa_s, changes, bss);
+
+	return bss;
 }
 
 
@@ -423,6 +447,7 @@ void wpa_bss_update_start(struct wpa_supplicant *wpa_s)
 	wpa_s->bss_update_idx++;
 	wpa_dbg(wpa_s, MSG_DEBUG, "BSS: Start scan result update %u",
 		wpa_s->bss_update_idx);
+	wpa_s->last_scan_res_used = 0;
 }
 
 
@@ -465,9 +490,28 @@ void wpa_bss_update_scan_res(struct wpa_supplicant *wpa_s,
 	 * (to save memory) */
 	bss = wpa_bss_get(wpa_s, res->bssid, ssid + 2, ssid[1]);
 	if (bss == NULL)
-		wpa_bss_add(wpa_s, ssid + 2, ssid[1], res);
+		bss = wpa_bss_add(wpa_s, ssid + 2, ssid[1], res);
 	else
-		wpa_bss_update(wpa_s, bss, res);
+		bss = wpa_bss_update(wpa_s, bss, res);
+
+	if (bss == NULL)
+		return;
+	if (wpa_s->last_scan_res_used >= wpa_s->last_scan_res_size) {
+		struct wpa_bss **n;
+		unsigned int siz;
+		if (wpa_s->last_scan_res_size == 0)
+			siz = 32;
+		else
+			siz = wpa_s->last_scan_res_size * 2;
+		n = os_realloc_array(wpa_s->last_scan_res, siz,
+				     sizeof(struct wpa_bss *));
+		if (n == NULL)
+			return;
+		wpa_s->last_scan_res = n;
+		wpa_s->last_scan_res_size = siz;
+	}
+
+	wpa_s->last_scan_res[wpa_s->last_scan_res_used++] = bss;
 }
 
 
@@ -517,9 +561,26 @@ void wpa_bss_update_end(struct wpa_supplicant *wpa_s, struct scan_info *info,
 {
 	struct wpa_bss *bss, *n;
 
+	wpa_s->last_scan_full = 0;
+	os_get_time(&wpa_s->last_scan);
 	if (!new_scan)
 		return; /* do not expire entries without new scan */
 
+	if (info && !info->aborted && !info->freqs) {
+		size_t i;
+		if (info->num_ssids == 0) {
+			wpa_s->last_scan_full = 1;
+		} else {
+			for (i = 0; i < info->num_ssids; i++) {
+				if (info->ssids[i].ssid == NULL ||
+				    info->ssids[i].ssid_len == 0) {
+					wpa_s->last_scan_full = 1;
+					break;
+				}
+			}
+		}
+	}
+
 	dl_list_for_each_safe(bss, n, &wpa_s->bss, struct wpa_bss, list) {
 		if (wpa_bss_in_use(wpa_s, bss))
 			continue;
@@ -532,6 +593,11 @@ void wpa_bss_update_end(struct wpa_supplicant *wpa_s, struct scan_info *info,
 			wpa_bss_remove(wpa_s, bss, "no match in scan");
 		}
 	}
+
+	wpa_printf(MSG_DEBUG, "BSS: last_scan_res_used=%u/%u "
+		   "last_scan_full=%d",
+		   wpa_s->last_scan_res_used, wpa_s->last_scan_res_size,
+		   wpa_s->last_scan_full);
 }
 
 
@@ -712,6 +778,38 @@ struct wpabuf * wpa_bss_get_vendor_ie_multi(const struct wpa_bss *bss,
 }
 
 
+struct wpabuf * wpa_bss_get_vendor_ie_multi_beacon(const struct wpa_bss *bss,
+						   u32 vendor_type)
+{
+	struct wpabuf *buf;
+	const u8 *end, *pos;
+
+	buf = wpabuf_alloc(bss->beacon_ie_len);
+	if (buf == NULL)
+		return NULL;
+
+	pos = (const u8 *) (bss + 1);
+	pos += bss->ie_len;
+	end = pos + bss->beacon_ie_len;
+
+	while (pos + 1 < end) {
+		if (pos + 2 + pos[1] > end)
+			break;
+		if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
+		    vendor_type == WPA_GET_BE32(&pos[2]))
+			wpabuf_put_data(buf, pos + 2 + 4, pos[1] - 4);
+		pos += 2 + pos[1];
+	}
+
+	if (wpabuf_len(buf) == 0) {
+		wpabuf_free(buf);
+		buf = NULL;
+	}
+
+	return buf;
+}
+
+
 int wpa_bss_get_max_rate(const struct wpa_bss *bss)
 {
 	int rate = 0;
diff --git a/wpa_supplicant/bss.h b/wpa_supplicant/bss.h
index 8a307cc..4a386b6 100644
--- a/wpa_supplicant/bss.h
+++ b/wpa_supplicant/bss.h
@@ -108,6 +108,8 @@ const u8 * wpa_bss_get_ie(const struct wpa_bss *bss, u8 ie);
 const u8 * wpa_bss_get_vendor_ie(const struct wpa_bss *bss, u32 vendor_type);
 struct wpabuf * wpa_bss_get_vendor_ie_multi(const struct wpa_bss *bss,
 					    u32 vendor_type);
+struct wpabuf * wpa_bss_get_vendor_ie_multi_beacon(const struct wpa_bss *bss,
+						   u32 vendor_type);
 int wpa_bss_get_max_rate(const struct wpa_bss *bss);
 int wpa_bss_get_bit_rates(const struct wpa_bss *bss, u8 **rates);
 struct wpa_bss_anqp * wpa_bss_anqp_alloc(void);
diff --git a/wpa_supplicant/events.c b/wpa_supplicant/events.c
index 6be345d..b304c09 100644
--- a/wpa_supplicant/events.c
+++ b/wpa_supplicant/events.c
@@ -324,7 +324,7 @@ int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
 
 
 #ifndef CONFIG_NO_SCAN_PROCESSING
-static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
+static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
 					struct wpa_ssid *ssid)
 {
 	int i, privacy = 0;
@@ -361,7 +361,7 @@ static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
 
 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
 					 struct wpa_ssid *ssid,
-					 struct wpa_scan_res *bss)
+					 struct wpa_bss *bss)
 {
 	struct wpa_ie_data ie;
 	int proto_match = 0;
@@ -379,7 +379,7 @@ static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
 		  ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
 		 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
 
-	rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
+	rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
 	while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
 		proto_match++;
 
@@ -434,7 +434,7 @@ static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
 		return 1;
 	}
 
-	wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
+	wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 	while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
 		proto_match++;
 
@@ -536,7 +536,7 @@ static int ht_supported(const struct hostapd_hw_modes *mode)
 }
 
 
-static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_scan_res *bss)
+static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
 {
 	const struct hostapd_hw_modes *mode = NULL, *modes;
 	const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
@@ -574,7 +574,7 @@ static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_scan_res *bss)
 		return 0;
 
 	for (i = 0; i < (int) sizeof(scan_ie); i++) {
-		rate_ie = wpa_scan_get_ie(bss, scan_ie[i]);
+		rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
 		if (rate_ie == NULL)
 			continue;
 
@@ -628,31 +628,26 @@ static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_scan_res *bss)
 
 
 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
-					    int i, struct wpa_scan_res *bss,
+					    int i, struct wpa_bss *bss,
 					    struct wpa_ssid *group)
 {
-	const u8 *ssid_;
-	u8 wpa_ie_len, rsn_ie_len, ssid_len;
+	u8 wpa_ie_len, rsn_ie_len;
 	int wpa;
 	struct wpa_blacklist *e;
 	const u8 *ie;
 	struct wpa_ssid *ssid;
 
-	ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
-	ssid_ = ie ? ie + 2 : (u8 *) "";
-	ssid_len = ie ? ie[1] : 0;
-
-	ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
+	ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 	wpa_ie_len = ie ? ie[1] : 0;
 
-	ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
+	ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
 	rsn_ie_len = ie ? ie[1] : 0;
 
 	wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
 		"wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
-		i, MAC2STR(bss->bssid), wpa_ssid_txt(ssid_, ssid_len),
+		i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
 		wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
-		wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
+		wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
 
 	e = wpa_blacklist_get(wpa_s, bss->bssid);
 	if (e) {
@@ -675,7 +670,7 @@ static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
 		}
 	}
 
-	if (ssid_len == 0) {
+	if (bss->ssid_len == 0) {
 		wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID not known");
 		return NULL;
 	}
@@ -725,8 +720,8 @@ static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
 			check_ssid = 0;
 
 		if (check_ssid &&
-		    (ssid_len != ssid->ssid_len ||
-		     os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
+		    (bss->ssid_len != ssid->ssid_len ||
+		     os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
 			wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID mismatch");
 			continue;
 		}
@@ -792,32 +787,24 @@ static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
 
 static struct wpa_bss *
 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
-			  struct wpa_scan_results *scan_res,
 			  struct wpa_ssid *group,
 			  struct wpa_ssid **selected_ssid)
 {
-	size_t i;
+	unsigned int i;
 
 	wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
 		group->priority);
 
-	for (i = 0; i < scan_res->num; i++) {
-		struct wpa_scan_res *bss = scan_res->res[i];
-		const u8 *ie, *ssid;
-		u8 ssid_len;
-
+	for (i = 0; i < wpa_s->last_scan_res_used; i++) {
+		struct wpa_bss *bss = wpa_s->last_scan_res[i];
 		*selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
 		if (!*selected_ssid)
 			continue;
-
-		ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
-		ssid = ie ? ie + 2 : (u8 *) "";
-		ssid_len = ie ? ie[1] : 0;
-
 		wpa_dbg(wpa_s, MSG_DEBUG, "   selected BSS " MACSTR
 			" ssid='%s'",
-			MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len));
-		return wpa_bss_get(wpa_s, bss->bssid, ssid, ssid_len);
+			MAC2STR(bss->bssid),
+			wpa_ssid_txt(bss->ssid, bss->ssid_len));
+		return bss;
 	}
 
 	return NULL;
@@ -826,16 +813,19 @@ wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
 
 static struct wpa_bss *
 wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
-			    struct wpa_scan_results *scan_res,
 			    struct wpa_ssid **selected_ssid)
 {
 	struct wpa_bss *selected = NULL;
 	int prio;
 
+	if (wpa_s->last_scan_res == NULL ||
+	    wpa_s->last_scan_res_used == 0)
+		return NULL; /* no scan results from last update */
+
 	while (selected == NULL) {
 		for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
 			selected = wpa_supplicant_select_bss(
-				wpa_s, scan_res, wpa_s->conf->pssid[prio],
+				wpa_s, wpa_s->conf->pssid[prio],
 				selected_ssid);
 			if (selected)
 				break;
@@ -969,11 +959,9 @@ static void wpa_supplicant_rsn_preauth_scan_results(
 
 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
 				       struct wpa_bss *selected,
-				       struct wpa_ssid *ssid,
-				       struct wpa_scan_results *scan_res)
+				       struct wpa_ssid *ssid)
 {
-	size_t i;
-	struct wpa_scan_res *current_bss = NULL;
+	struct wpa_bss *current_bss = NULL;
 	int min_diff;
 
 	if (wpa_s->reassociate)
@@ -988,25 +976,22 @@ static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
 	if (wpas_driver_bss_selection(wpa_s))
 		return 0; /* Driver-based roaming */
 
-	for (i = 0; i < scan_res->num; i++) {
-		struct wpa_scan_res *res = scan_res->res[i];
-		const u8 *ie;
-		if (os_memcmp(res->bssid, wpa_s->bssid, ETH_ALEN) != 0)
-			continue;
-
-		ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
-		if (ie == NULL)
-			continue;
-		if (ie[1] != wpa_s->current_ssid->ssid_len ||
-		    os_memcmp(ie + 2, wpa_s->current_ssid->ssid, ie[1]) != 0)
-			continue;
-		current_bss = res;
-		break;
-	}
+	if (wpa_s->current_ssid->ssid)
+		current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
+					  wpa_s->current_ssid->ssid,
+					  wpa_s->current_ssid->ssid_len);
+	if (!current_bss)
+		current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
 
 	if (!current_bss)
 		return 1; /* current BSS not seen in scan results */
 
+	if (current_bss == selected)
+		return 0;
+
+	if (selected->last_update_idx > current_bss->last_update_idx)
+		return 1; /* current BSS not seen in the last scan */
+
 #ifndef CONFIG_NO_ROAMING
 	wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
 	wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
@@ -1058,8 +1043,6 @@ static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
 					      union wpa_event_data *data)
 #endif
 {
-	struct wpa_bss *selected;
-	struct wpa_ssid *ssid = NULL;
 	struct wpa_scan_results *scan_res;
 	int ap = 0;
 #ifndef CONFIG_NO_RANDOM_POOL
@@ -1179,13 +1162,22 @@ static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
 
 	wpas_wps_update_ap_info(wpa_s, scan_res);
 
-	selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid);
+	wpa_scan_results_free(scan_res);
+
+	return wpas_select_network_from_last_scan(wpa_s);
+}
+
+
+int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s)
+{
+	struct wpa_bss *selected;
+	struct wpa_ssid *ssid = NULL;
+
+	selected = wpa_supplicant_pick_network(wpa_s, &ssid);
 
 	if (selected) {
 		int skip;
-		skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid,
-						    scan_res);
-		wpa_scan_results_free(scan_res);
+		skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
 		if (skip) {
 			wpa_supplicant_rsn_preauth_scan_results(wpa_s);
 			return 0;
@@ -1197,7 +1189,6 @@ static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
 		}
 		wpa_supplicant_rsn_preauth_scan_results(wpa_s);
 	} else {
-		wpa_scan_results_free(scan_res);
 		wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
 		ssid = wpa_supplicant_pick_new_network(wpa_s);
 		if (ssid) {
diff --git a/wpa_supplicant/scan.c b/wpa_supplicant/scan.c
index d8b3139..f088da1 100644
--- a/wpa_supplicant/scan.c
+++ b/wpa_supplicant/scan.c
@@ -691,7 +691,7 @@ scan:
 	if (ret) {
 		wpa_msg(wpa_s, MSG_WARNING, "Failed to initiate AP scan");
 #ifdef ANDROID_P2P
-		/* Restore back the wpa_s->scan_req if we failed the scan becoz of any reason */
+		/* Restore back the wpa_s->scan_req if we failed the scan because of any reason */
 		wpa_msg(wpa_s, MSG_DEBUG, "Restoring back the wpa_s->scan_req "
 			"to the original value %d", scan_req);
 		wpa_s->scan_req = scan_req;
diff --git a/wpa_supplicant/wpa_supplicant.c b/wpa_supplicant/wpa_supplicant.c
index 284a91d..8730e0f 100644
--- a/wpa_supplicant/wpa_supplicant.c
+++ b/wpa_supplicant/wpa_supplicant.c
@@ -476,6 +476,9 @@ static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s)
 	wpa_s->ext_pw = NULL;
 
 	wpabuf_free(wpa_s->last_gas_resp);
+
+	os_free(wpa_s->last_scan_res);
+	wpa_s->last_scan_res = NULL;
 }
 
 
diff --git a/wpa_supplicant/wpa_supplicant_i.h b/wpa_supplicant/wpa_supplicant_i.h
index 6011439..0bc2880 100644
--- a/wpa_supplicant/wpa_supplicant_i.h
+++ b/wpa_supplicant/wpa_supplicant_i.h
@@ -347,6 +347,16 @@ struct wpa_supplicant {
 	unsigned int bss_update_idx;
 	unsigned int bss_next_id;
 
+	 /*
+	  * Pointers to BSS entries in the order they were in the last scan
+	  * results.
+	  */
+	struct wpa_bss **last_scan_res;
+	unsigned int last_scan_res_used;
+	unsigned int last_scan_res_size;
+	int last_scan_full;
+	struct os_time last_scan;
+
 	struct wpa_driver_ops *driver;
 	int interface_removed; /* whether the network interface has been
 				* removed */
@@ -708,6 +718,7 @@ int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx);
 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx);
 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s);
+int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s);
 
 /* eap_register.c */
 int eap_register_methods(void);
diff --git a/wpa_supplicant/wps_supplicant.c b/wpa_supplicant/wps_supplicant.c
index 23966b8..130f3ab 100644
--- a/wpa_supplicant/wps_supplicant.c
+++ b/wpa_supplicant/wps_supplicant.c
@@ -1270,14 +1270,14 @@ void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
 
 
 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
-			    struct wpa_ssid *ssid, struct wpa_scan_res *bss)
+			    struct wpa_ssid *ssid, struct wpa_bss *bss)
 {
 	struct wpabuf *wps_ie;
 
 	if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
 		return -1;
 
-	wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
+	wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
 	if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
 		if (!wps_ie) {
 			wpa_printf(MSG_DEBUG, "   skip - non-WPS AP");
@@ -1339,19 +1339,19 @@ int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
 
 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
 			      struct wpa_ssid *ssid,
-			      struct wpa_scan_res *bss)
+			      struct wpa_bss *bss)
 {
 	struct wpabuf *wps_ie = NULL;
 	int ret = 0;
 
 	if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
-		wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
+		wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
 		if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
 			/* allow wildcard SSID for WPS PBC */
 			ret = 1;
 		}
 	} else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
-		wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
+		wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
 		if (wps_ie &&
 		    (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
 		     wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
@@ -1373,7 +1373,7 @@ int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
 			ret = 0;
 		if (bss->beacon_ie_len) {
 			struct wpabuf *bcn_wps;
-			bcn_wps = wpa_scan_get_vendor_ie_multi_beacon(
+			bcn_wps = wpa_bss_get_vendor_ie_multi_beacon(
 				bss, WPS_IE_VENDOR_TYPE);
 			if (bcn_wps == NULL) {
 				wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
diff --git a/wpa_supplicant/wps_supplicant.h b/wpa_supplicant/wps_supplicant.h
index 36f1e02..d5eb3b6 100644
--- a/wpa_supplicant/wps_supplicant.h
+++ b/wpa_supplicant/wps_supplicant.h
@@ -40,9 +40,9 @@ int wpas_wps_start_oob(struct wpa_supplicant *wpa_s, char *device_type,
 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
 		       const char *pin, struct wps_new_ap_settings *settings);
 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
-			    struct wpa_ssid *ssid, struct wpa_scan_res *bss);
+			    struct wpa_ssid *ssid, struct wpa_bss *bss);
 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
-			      struct wpa_ssid *ssid, struct wpa_scan_res *bss);
+			      struct wpa_ssid *ssid, struct wpa_bss *bss);
 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
 			      struct wpa_bss *selected, struct wpa_ssid *ssid);
 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s);