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openwrt/package/kernel/mac80211/patches/100-revert-cryptoapi-ports.patch
Felix Fietkau 1e5b7c17b0 mac80211: update to wireless-testing 2015-03-09 
Based on patch by Bryan Forbes <bryan@reigndropsfall.net>

Also update mt76 to update for API changes

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 44655
2015-03-11 15:02:47 +00:00

2056 lines
61 KiB
Diff
Raw Blame History

This patch reverts the following commits from wireless-testing:
8ade538bf39b1ee53418528fdacd36b8e65621b9
56c52da2d554f081e8fce58ecbcf6a40c605b95b
2b2ba0db1c820d04d5143452d70012cd44d7b578
00b9cfa3ff38401bd70c34b250ca13e5ea347b4a
4f031fa9f188b2b0641ac20087d9e16bcfb4e49d
6e1ee5d2e9e411892b5d84e3ea93e3fc88ac786c
30ef7ef9672d92ab2cac37f60a31955c118321e7
f359d3fe832e49eeec2232b2af5a9e3aee6b4862 (only the changes in aes_cmac.{c,h})
7ec7c4a9a686c608315739ab6a2b0527a240883c
---
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1017,15 +1017,6 @@ struct ieee80211_mmie {
u8 mic[8];
} __packed;
-/* Management MIC information element (IEEE 802.11w) for GMAC and CMAC-256 */
-struct ieee80211_mmie_16 {
- u8 element_id;
- u8 length;
- __le16 key_id;
- u8 sequence_number[6];
- u8 mic[16];
-} __packed;
-
struct ieee80211_vendor_ie {
u8 element_id;
u8 len;
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1306,8 +1306,8 @@ struct ieee80211_vif *wdev_to_ieee80211_
* @IEEE80211_KEY_FLAG_PAIRWISE: Set by mac80211, this flag indicates
* that the key is pairwise rather then a shared key.
* @IEEE80211_KEY_FLAG_SW_MGMT_TX: This flag should be set by the driver for a
- * CCMP/GCMP key if it requires CCMP/GCMP encryption of management frames
- * (MFP) to be done in software.
+ * CCMP key if it requires CCMP encryption of management frames (MFP) to
+ * be done in software.
* @IEEE80211_KEY_FLAG_PUT_IV_SPACE: This flag should be set by the driver
* if space should be prepared for the IV, but the IV
* itself should not be generated. Do not set together with
@@ -1322,7 +1322,7 @@ struct ieee80211_vif *wdev_to_ieee80211_
* RX, if your crypto engine can't deal with TX you can also set the
* %IEEE80211_KEY_FLAG_SW_MGMT_TX flag to encrypt such frames in SW.
* @IEEE80211_KEY_FLAG_GENERATE_IV_MGMT: This flag should be set by the
- * driver for a CCMP/GCMP key to indicate that is requires IV generation
+ * driver for a CCMP key to indicate that is requires IV generation
* only for managment frames (MFP).
* @IEEE80211_KEY_FLAG_RESERVE_TAILROOM: This flag should be set by the
* driver for a key to indicate that sufficient tailroom must always
@@ -4112,10 +4112,6 @@ void ieee80211_aes_cmac_calculate_k1_k2(
* reverse order than in packet)
* @aes_cmac: PN data, most significant byte first (big endian,
* reverse order than in packet)
- * @aes_gmac: PN data, most significant byte first (big endian,
- * reverse order than in packet)
- * @gcmp: PN data, most significant byte first (big endian,
- * reverse order than in packet)
*/
struct ieee80211_key_seq {
union {
@@ -4129,12 +4125,6 @@ struct ieee80211_key_seq {
struct {
u8 pn[6];
} aes_cmac;
- struct {
- u8 pn[6];
- } aes_gmac;
- struct {
- u8 pn[6];
- } gcmp;
};
};
@@ -4159,7 +4149,7 @@ void ieee80211_get_key_tx_seq(struct iee
* ieee80211_get_key_rx_seq - get key RX sequence counter
*
* @keyconf: the parameter passed with the set key
- * @tid: The TID, or -1 for the management frame value (CCMP/GCMP only);
+ * @tid: The TID, or -1 for the management frame value (CCMP only);
* the value on TID 0 is also used for non-QoS frames. For
* CMAC, only TID 0 is valid.
* @seq: buffer to receive the sequence data
@@ -4195,7 +4185,7 @@ void ieee80211_set_key_tx_seq(struct iee
* ieee80211_set_key_rx_seq - set key RX sequence counter
*
* @keyconf: the parameter passed with the set key
- * @tid: The TID, or -1 for the management frame value (CCMP/GCMP only);
+ * @tid: The TID, or -1 for the management frame value (CCMP only);
* the value on TID 0 is also used for non-QoS frames. For
* CMAC, only TID 0 is valid.
* @seq: new sequence data
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -5,8 +5,6 @@ config MAC80211
depends on CRYPTO
depends on CRYPTO_ARC4
depends on CRYPTO_AES
- select BPAUTO_CRYPTO_CCM
- depends on CRYPTO_GCM
depends on CRC32
select BPAUTO_AVERAGE
---help---
--- a/net/mac80211/Makefile
+++ b/net/mac80211/Makefile
@@ -15,9 +15,7 @@ mac80211-y := \
michael.o \
tkip.o \
aes_ccm.o \
- aes_gcm.o \
aes_cmac.o \
- aes_gmac.o \
cfg.o \
ethtool.o \
rx.o \
--- a/net/mac80211/aes_ccm.c
+++ b/net/mac80211/aes_ccm.c
@@ -2,8 +2,6 @@
* Copyright 2003-2004, Instant802 Networks, Inc.
* Copyright 2005-2006, Devicescape Software, Inc.
*
- * Rewrite: Copyright (C) 2013 Linaro Ltd <ard.biesheuvel@linaro.org>
- *
* 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.
@@ -19,82 +17,134 @@
#include "key.h"
#include "aes_ccm.h"
-void ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
- u8 *data, size_t data_len, u8 *mic,
- size_t mic_len)
+static void aes_ccm_prepare(struct crypto_cipher *tfm, u8 *scratch, u8 *a)
+{
+ int i;
+ u8 *b_0, *aad, *b, *s_0;
+
+ b_0 = scratch + 3 * AES_BLOCK_SIZE;
+ aad = scratch + 4 * AES_BLOCK_SIZE;
+ b = scratch;
+ s_0 = scratch + AES_BLOCK_SIZE;
+
+ crypto_cipher_encrypt_one(tfm, b, b_0);
+
+ /* Extra Authenticate-only data (always two AES blocks) */
+ for (i = 0; i < AES_BLOCK_SIZE; i++)
+ aad[i] ^= b[i];
+ crypto_cipher_encrypt_one(tfm, b, aad);
+
+ aad += AES_BLOCK_SIZE;
+
+ for (i = 0; i < AES_BLOCK_SIZE; i++)
+ aad[i] ^= b[i];
+ crypto_cipher_encrypt_one(tfm, a, aad);
+
+ /* Mask out bits from auth-only-b_0 */
+ b_0[0] &= 0x07;
+
+ /* S_0 is used to encrypt T (= MIC) */
+ b_0[14] = 0;
+ b_0[15] = 0;
+ crypto_cipher_encrypt_one(tfm, s_0, b_0);
+}
+
+
+void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
+ u8 *data, size_t data_len,
+ u8 *cdata, u8 *mic)
{
- struct scatterlist assoc, pt, ct[2];
+ int i, j, last_len, num_blocks;
+ u8 *pos, *cpos, *b, *s_0, *e, *b_0;
- char aead_req_data[sizeof(struct aead_request) +
- crypto_aead_reqsize(tfm)]
- __aligned(__alignof__(struct aead_request));
- struct aead_request *aead_req = (void *) aead_req_data;
-
- memset(aead_req, 0, sizeof(aead_req_data));
-
- sg_init_one(&pt, data, data_len);
- sg_init_one(&assoc, &aad[2], be16_to_cpup((__be16 *)aad));
- sg_init_table(ct, 2);
- sg_set_buf(&ct[0], data, data_len);
- sg_set_buf(&ct[1], mic, mic_len);
-
- aead_request_set_tfm(aead_req, tfm);
- aead_request_set_assoc(aead_req, &assoc, assoc.length);
- aead_request_set_crypt(aead_req, &pt, ct, data_len, b_0);
+ b = scratch;
+ s_0 = scratch + AES_BLOCK_SIZE;
+ e = scratch + 2 * AES_BLOCK_SIZE;
+ b_0 = scratch + 3 * AES_BLOCK_SIZE;
+
+ num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_SIZE);
+ last_len = data_len % AES_BLOCK_SIZE;
+ aes_ccm_prepare(tfm, scratch, b);
+
+ /* Process payload blocks */
+ pos = data;
+ cpos = cdata;
+ for (j = 1; j <= num_blocks; j++) {
+ int blen = (j == num_blocks && last_len) ?
+ last_len : AES_BLOCK_SIZE;
+
+ /* Authentication followed by encryption */
+ for (i = 0; i < blen; i++)
+ b[i] ^= pos[i];
+ crypto_cipher_encrypt_one(tfm, b, b);
+
+ b_0[14] = (j >> 8) & 0xff;
+ b_0[15] = j & 0xff;
+ crypto_cipher_encrypt_one(tfm, e, b_0);
+ for (i = 0; i < blen; i++)
+ *cpos++ = *pos++ ^ e[i];
+ }
- crypto_aead_encrypt(aead_req);
+ for (i = 0; i < IEEE80211_CCMP_MIC_LEN; i++)
+ mic[i] = b[i] ^ s_0[i];
}
-int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
- u8 *data, size_t data_len, u8 *mic,
- size_t mic_len)
+
+int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
+ u8 *cdata, size_t data_len, u8 *mic, u8 *data)
{
- struct scatterlist assoc, pt, ct[2];
- char aead_req_data[sizeof(struct aead_request) +
- crypto_aead_reqsize(tfm)]
- __aligned(__alignof__(struct aead_request));
- struct aead_request *aead_req = (void *) aead_req_data;
-
- if (data_len == 0)
- return -EINVAL;
-
- memset(aead_req, 0, sizeof(aead_req_data));
-
- sg_init_one(&pt, data, data_len);
- sg_init_one(&assoc, &aad[2], be16_to_cpup((__be16 *)aad));
- sg_init_table(ct, 2);
- sg_set_buf(&ct[0], data, data_len);
- sg_set_buf(&ct[1], mic, mic_len);
-
- aead_request_set_tfm(aead_req, tfm);
- aead_request_set_assoc(aead_req, &assoc, assoc.length);
- aead_request_set_crypt(aead_req, ct, &pt, data_len + mic_len, b_0);
+ int i, j, last_len, num_blocks;
+ u8 *pos, *cpos, *b, *s_0, *a, *b_0;
+
+ b = scratch;
+ s_0 = scratch + AES_BLOCK_SIZE;
+ a = scratch + 2 * AES_BLOCK_SIZE;
+ b_0 = scratch + 3 * AES_BLOCK_SIZE;
+
+ num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_SIZE);
+ last_len = data_len % AES_BLOCK_SIZE;
+ aes_ccm_prepare(tfm, scratch, a);
+
+ /* Process payload blocks */
+ cpos = cdata;
+ pos = data;
+ for (j = 1; j <= num_blocks; j++) {
+ int blen = (j == num_blocks && last_len) ?
+ last_len : AES_BLOCK_SIZE;
+
+ /* Decryption followed by authentication */
+ b_0[14] = (j >> 8) & 0xff;
+ b_0[15] = j & 0xff;
+ crypto_cipher_encrypt_one(tfm, b, b_0);
+ for (i = 0; i < blen; i++) {
+ *pos = *cpos++ ^ b[i];
+ a[i] ^= *pos++;
+ }
+ crypto_cipher_encrypt_one(tfm, a, a);
+ }
+
+ for (i = 0; i < IEEE80211_CCMP_MIC_LEN; i++) {
+ if ((mic[i] ^ s_0[i]) != a[i])
+ return -1;
+ }
- return crypto_aead_decrypt(aead_req);
+ return 0;
}
-struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[],
- size_t key_len,
- size_t mic_len)
+
+struct crypto_cipher *ieee80211_aes_key_setup_encrypt(const u8 key[])
{
- struct crypto_aead *tfm;
- int err;
+ struct crypto_cipher *tfm;
- tfm = crypto_alloc_aead("ccm(aes)", 0, CRYPTO_ALG_ASYNC);
- if (IS_ERR(tfm))
- return tfm;
-
- err = crypto_aead_setkey(tfm, key, key_len);
- if (!err)
- err = crypto_aead_setauthsize(tfm, mic_len);
- if (!err)
- return tfm;
+ tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
+ if (!IS_ERR(tfm))
+ crypto_cipher_setkey(tfm, key, WLAN_KEY_LEN_CCMP);
- crypto_free_aead(tfm);
- return ERR_PTR(err);
+ return tfm;
}
-void ieee80211_aes_key_free(struct crypto_aead *tfm)
+
+void ieee80211_aes_key_free(struct crypto_cipher *tfm)
{
- crypto_free_aead(tfm);
+ crypto_free_cipher(tfm);
}
--- a/net/mac80211/aes_ccm.h
+++ b/net/mac80211/aes_ccm.h
@@ -12,15 +12,13 @@
#include <linux/crypto.h>
-struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[],
- size_t key_len,
- size_t mic_len);
-void ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
- u8 *data, size_t data_len, u8 *mic,
- size_t mic_len);
-int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
- u8 *data, size_t data_len, u8 *mic,
- size_t mic_len);
-void ieee80211_aes_key_free(struct crypto_aead *tfm);
+struct crypto_cipher *ieee80211_aes_key_setup_encrypt(const u8 key[]);
+void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
+ u8 *data, size_t data_len,
+ u8 *cdata, u8 *mic);
+int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
+ u8 *cdata, size_t data_len,
+ u8 *mic, u8 *data);
+void ieee80211_aes_key_free(struct crypto_cipher *tfm);
#endif /* AES_CCM_H */
--- a/net/mac80211/aes_cmac.c
+++ b/net/mac80211/aes_cmac.c
@@ -18,8 +18,8 @@
#include "key.h"
#include "aes_cmac.h"
+#define AES_CMAC_KEY_LEN 16
#define CMAC_TLEN 8 /* CMAC TLen = 64 bits (8 octets) */
-#define CMAC_TLEN_256 16 /* CMAC TLen = 128 bits (16 octets) */
#define AAD_LEN 20
@@ -35,9 +35,9 @@ static void gf_mulx(u8 *pad)
pad[AES_BLOCK_SIZE - 1] ^= 0x87;
}
-static void aes_cmac_vector(struct crypto_cipher *tfm, size_t num_elem,
- const u8 *addr[], const size_t *len, u8 *mac,
- size_t mac_len)
+
+static void aes_128_cmac_vector(struct crypto_cipher *tfm, size_t num_elem,
+ const u8 *addr[], const size_t *len, u8 *mac)
{
u8 cbc[AES_BLOCK_SIZE], pad[AES_BLOCK_SIZE];
const u8 *pos, *end;
@@ -88,7 +88,7 @@ static void aes_cmac_vector(struct crypt
for (i = 0; i < AES_BLOCK_SIZE; i++)
pad[i] ^= cbc[i];
crypto_cipher_encrypt_one(tfm, pad, pad);
- memcpy(mac, pad, mac_len);
+ memcpy(mac, pad, CMAC_TLEN);
}
@@ -107,35 +107,17 @@ void ieee80211_aes_cmac(struct crypto_ci
addr[2] = zero;
len[2] = CMAC_TLEN;
- aes_cmac_vector(tfm, 3, addr, len, mic, CMAC_TLEN);
+ aes_128_cmac_vector(tfm, 3, addr, len, mic);
}
-void ieee80211_aes_cmac_256(struct crypto_cipher *tfm, const u8 *aad,
- const u8 *data, size_t data_len, u8 *mic)
-{
- const u8 *addr[3];
- size_t len[3];
- u8 zero[CMAC_TLEN_256];
-
- memset(zero, 0, CMAC_TLEN_256);
- addr[0] = aad;
- len[0] = AAD_LEN;
- addr[1] = data;
- len[1] = data_len - CMAC_TLEN_256;
- addr[2] = zero;
- len[2] = CMAC_TLEN_256;
-
- aes_cmac_vector(tfm, 3, addr, len, mic, CMAC_TLEN_256);
-}
-struct crypto_cipher *ieee80211_aes_cmac_key_setup(const u8 key[],
- size_t key_len)
+struct crypto_cipher * ieee80211_aes_cmac_key_setup(const u8 key[])
{
struct crypto_cipher *tfm;
tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
if (!IS_ERR(tfm))
- crypto_cipher_setkey(tfm, key, key_len);
+ crypto_cipher_setkey(tfm, key, AES_CMAC_KEY_LEN);
return tfm;
}
--- a/net/mac80211/aes_cmac.h
+++ b/net/mac80211/aes_cmac.h
@@ -11,12 +11,9 @@
#include <linux/crypto.h>
-struct crypto_cipher *ieee80211_aes_cmac_key_setup(const u8 key[],
- size_t key_len);
+struct crypto_cipher * ieee80211_aes_cmac_key_setup(const u8 key[]);
void ieee80211_aes_cmac(struct crypto_cipher *tfm, const u8 *aad,
const u8 *data, size_t data_len, u8 *mic);
-void ieee80211_aes_cmac_256(struct crypto_cipher *tfm, const u8 *aad,
- const u8 *data, size_t data_len, u8 *mic);
void ieee80211_aes_cmac_key_free(struct crypto_cipher *tfm);
#endif /* AES_CMAC_H */
--- a/net/mac80211/aes_gcm.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Copyright 2014-2015, Qualcomm Atheros, Inc.
- *
- * 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.
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/crypto.h>
-#include <linux/err.h>
-#include <crypto/aes.h>
-
-#include <net/mac80211.h>
-#include "key.h"
-#include "aes_gcm.h"
-
-void ieee80211_aes_gcm_encrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad,
- u8 *data, size_t data_len, u8 *mic)
-{
- struct scatterlist assoc, pt, ct[2];
-
- char aead_req_data[sizeof(struct aead_request) +
- crypto_aead_reqsize(tfm)]
- __aligned(__alignof__(struct aead_request));
- struct aead_request *aead_req = (void *)aead_req_data;
-
- memset(aead_req, 0, sizeof(aead_req_data));
-
- sg_init_one(&pt, data, data_len);
- sg_init_one(&assoc, &aad[2], be16_to_cpup((__be16 *)aad));
- sg_init_table(ct, 2);
- sg_set_buf(&ct[0], data, data_len);
- sg_set_buf(&ct[1], mic, IEEE80211_GCMP_MIC_LEN);
-
- aead_request_set_tfm(aead_req, tfm);
- aead_request_set_assoc(aead_req, &assoc, assoc.length);
- aead_request_set_crypt(aead_req, &pt, ct, data_len, j_0);
-
- crypto_aead_encrypt(aead_req);
-}
-
-int ieee80211_aes_gcm_decrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad,
- u8 *data, size_t data_len, u8 *mic)
-{
- struct scatterlist assoc, pt, ct[2];
- char aead_req_data[sizeof(struct aead_request) +
- crypto_aead_reqsize(tfm)]
- __aligned(__alignof__(struct aead_request));
- struct aead_request *aead_req = (void *)aead_req_data;
-
- if (data_len == 0)
- return -EINVAL;
-
- memset(aead_req, 0, sizeof(aead_req_data));
-
- sg_init_one(&pt, data, data_len);
- sg_init_one(&assoc, &aad[2], be16_to_cpup((__be16 *)aad));
- sg_init_table(ct, 2);
- sg_set_buf(&ct[0], data, data_len);
- sg_set_buf(&ct[1], mic, IEEE80211_GCMP_MIC_LEN);
-
- aead_request_set_tfm(aead_req, tfm);
- aead_request_set_assoc(aead_req, &assoc, assoc.length);
- aead_request_set_crypt(aead_req, ct, &pt,
- data_len + IEEE80211_GCMP_MIC_LEN, j_0);
-
- return crypto_aead_decrypt(aead_req);
-}
-
-struct crypto_aead *ieee80211_aes_gcm_key_setup_encrypt(const u8 key[],
- size_t key_len)
-{
- struct crypto_aead *tfm;
- int err;
-
- tfm = crypto_alloc_aead("gcm(aes)", 0, CRYPTO_ALG_ASYNC);
- if (IS_ERR(tfm))
- return tfm;
-
- err = crypto_aead_setkey(tfm, key, key_len);
- if (!err)
- err = crypto_aead_setauthsize(tfm, IEEE80211_GCMP_MIC_LEN);
- if (!err)
- return tfm;
-
- crypto_free_aead(tfm);
- return ERR_PTR(err);
-}
-
-void ieee80211_aes_gcm_key_free(struct crypto_aead *tfm)
-{
- crypto_free_aead(tfm);
-}
--- a/net/mac80211/aes_gcm.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright 2014-2015, Qualcomm Atheros, Inc.
- *
- * 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.
- */
-
-#ifndef AES_GCM_H
-#define AES_GCM_H
-
-#include <linux/crypto.h>
-
-void ieee80211_aes_gcm_encrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad,
- u8 *data, size_t data_len, u8 *mic);
-int ieee80211_aes_gcm_decrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad,
- u8 *data, size_t data_len, u8 *mic);
-struct crypto_aead *ieee80211_aes_gcm_key_setup_encrypt(const u8 key[],
- size_t key_len);
-void ieee80211_aes_gcm_key_free(struct crypto_aead *tfm);
-
-#endif /* AES_GCM_H */
--- a/net/mac80211/aes_gmac.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * AES-GMAC for IEEE 802.11 BIP-GMAC-128 and BIP-GMAC-256
- * Copyright 2015, Qualcomm Atheros, Inc.
- *
- * 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.
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/crypto.h>
-#include <linux/err.h>
-#include <crypto/aes.h>
-
-#include <net/mac80211.h>
-#include "key.h"
-#include "aes_gmac.h"
-
-#define GMAC_MIC_LEN 16
-#define GMAC_NONCE_LEN 12
-#define AAD_LEN 20
-
-int ieee80211_aes_gmac(struct crypto_aead *tfm, const u8 *aad, u8 *nonce,
- const u8 *data, size_t data_len, u8 *mic)
-{
- struct scatterlist sg[3], ct[1];
- char aead_req_data[sizeof(struct aead_request) +
- crypto_aead_reqsize(tfm)]
- __aligned(__alignof__(struct aead_request));
- struct aead_request *aead_req = (void *)aead_req_data;
- u8 zero[GMAC_MIC_LEN], iv[AES_BLOCK_SIZE];
-
- if (data_len < GMAC_MIC_LEN)
- return -EINVAL;
-
- memset(aead_req, 0, sizeof(aead_req_data));
-
- memset(zero, 0, GMAC_MIC_LEN);
- sg_init_table(sg, 3);
- sg_set_buf(&sg[0], aad, AAD_LEN);
- sg_set_buf(&sg[1], data, data_len - GMAC_MIC_LEN);
- sg_set_buf(&sg[2], zero, GMAC_MIC_LEN);
-
- memcpy(iv, nonce, GMAC_NONCE_LEN);
- memset(iv + GMAC_NONCE_LEN, 0, sizeof(iv) - GMAC_NONCE_LEN);
- iv[AES_BLOCK_SIZE - 1] = 0x01;
-
- sg_init_table(ct, 1);
- sg_set_buf(&ct[0], mic, GMAC_MIC_LEN);
-
- aead_request_set_tfm(aead_req, tfm);
- aead_request_set_assoc(aead_req, sg, AAD_LEN + data_len);
- aead_request_set_crypt(aead_req, NULL, ct, 0, iv);
-
- crypto_aead_encrypt(aead_req);
-
- return 0;
-}
-
-struct crypto_aead *ieee80211_aes_gmac_key_setup(const u8 key[],
- size_t key_len)
-{
- struct crypto_aead *tfm;
- int err;
-
- tfm = crypto_alloc_aead("gcm(aes)", 0, CRYPTO_ALG_ASYNC);
- if (IS_ERR(tfm))
- return tfm;
-
- err = crypto_aead_setkey(tfm, key, key_len);
- if (!err)
- return tfm;
- if (!err)
- err = crypto_aead_setauthsize(tfm, GMAC_MIC_LEN);
-
- crypto_free_aead(tfm);
- return ERR_PTR(err);
-}
-
-void ieee80211_aes_gmac_key_free(struct crypto_aead *tfm)
-{
- crypto_free_aead(tfm);
-}
--- a/net/mac80211/aes_gmac.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * Copyright 2015, Qualcomm Atheros, Inc.
- *
- * 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.
- */
-
-#ifndef AES_GMAC_H
-#define AES_GMAC_H
-
-#include <linux/crypto.h>
-
-struct crypto_aead *ieee80211_aes_gmac_key_setup(const u8 key[],
- size_t key_len);
-int ieee80211_aes_gmac(struct crypto_aead *tfm, const u8 *aad, u8 *nonce,
- const u8 *data, size_t data_len, u8 *mic);
-void ieee80211_aes_gmac_key_free(struct crypto_aead *tfm);
-
-#endif /* AES_GMAC_H */
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -162,13 +162,8 @@ static int ieee80211_add_key(struct wiph
return -EINVAL;
break;
case WLAN_CIPHER_SUITE_CCMP:
- case WLAN_CIPHER_SUITE_CCMP_256:
case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
break;
default:
cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
@@ -353,7 +348,6 @@ static int ieee80211_get_key(struct wiph
params.seq_len = 6;
break;
case WLAN_CIPHER_SUITE_CCMP:
- case WLAN_CIPHER_SUITE_CCMP_256:
pn64 = atomic64_read(&key->u.ccmp.tx_pn);
seq[0] = pn64;
seq[1] = pn64 >> 8;
@@ -365,35 +359,10 @@ static int ieee80211_get_key(struct wiph
params.seq_len = 6;
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
seq[0] = pn64;
seq[1] = pn64 >> 8;
seq[2] = pn64 >> 16;
- seq[3] = pn64 >> 24;
- seq[4] = pn64 >> 32;
- seq[5] = pn64 >> 40;
- params.seq = seq;
- params.seq_len = 6;
- break;
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- pn64 = atomic64_read(&key->u.aes_gmac.tx_pn);
- seq[0] = pn64;
- seq[1] = pn64 >> 8;
- seq[2] = pn64 >> 16;
- seq[3] = pn64 >> 24;
- seq[4] = pn64 >> 32;
- seq[5] = pn64 >> 40;
- params.seq = seq;
- params.seq_len = 6;
- break;
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
- pn64 = atomic64_read(&key->u.gcmp.tx_pn);
- seq[0] = pn64;
- seq[1] = pn64 >> 8;
- seq[2] = pn64 >> 16;
seq[3] = pn64 >> 24;
seq[4] = pn64 >> 32;
seq[5] = pn64 >> 40;
--- a/net/mac80211/debugfs_key.c
+++ b/net/mac80211/debugfs_key.c
@@ -94,33 +94,17 @@ static ssize_t key_tx_spec_read(struct f
key->u.tkip.tx.iv16);
break;
case WLAN_CIPHER_SUITE_CCMP:
- case WLAN_CIPHER_SUITE_CCMP_256:
pn = atomic64_read(&key->u.ccmp.tx_pn);
len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
(u8)(pn >> 40), (u8)(pn >> 32), (u8)(pn >> 24),
(u8)(pn >> 16), (u8)(pn >> 8), (u8)pn);
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
pn = atomic64_read(&key->u.aes_cmac.tx_pn);
len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
(u8)(pn >> 40), (u8)(pn >> 32), (u8)(pn >> 24),
(u8)(pn >> 16), (u8)(pn >> 8), (u8)pn);
break;
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- pn = atomic64_read(&key->u.aes_gmac.tx_pn);
- len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
- (u8)(pn >> 40), (u8)(pn >> 32), (u8)(pn >> 24),
- (u8)(pn >> 16), (u8)(pn >> 8), (u8)pn);
- break;
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
- pn = atomic64_read(&key->u.gcmp.tx_pn);
- len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
- (u8)(pn >> 40), (u8)(pn >> 32), (u8)(pn >> 24),
- (u8)(pn >> 16), (u8)(pn >> 8), (u8)pn);
- break;
default:
return 0;
}
@@ -150,7 +134,6 @@ static ssize_t key_rx_spec_read(struct f
len = p - buf;
break;
case WLAN_CIPHER_SUITE_CCMP:
- case WLAN_CIPHER_SUITE_CCMP_256:
for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++) {
rpn = key->u.ccmp.rx_pn[i];
p += scnprintf(p, sizeof(buf)+buf-p,
@@ -161,7 +144,6 @@ static ssize_t key_rx_spec_read(struct f
len = p - buf;
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
rpn = key->u.aes_cmac.rx_pn;
p += scnprintf(p, sizeof(buf)+buf-p,
"%02x%02x%02x%02x%02x%02x\n",
@@ -169,26 +151,6 @@ static ssize_t key_rx_spec_read(struct f
rpn[3], rpn[4], rpn[5]);
len = p - buf;
break;
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- rpn = key->u.aes_gmac.rx_pn;
- p += scnprintf(p, sizeof(buf)+buf-p,
- "%02x%02x%02x%02x%02x%02x\n",
- rpn[0], rpn[1], rpn[2],
- rpn[3], rpn[4], rpn[5]);
- len = p - buf;
- break;
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
- for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++) {
- rpn = key->u.gcmp.rx_pn[i];
- p += scnprintf(p, sizeof(buf)+buf-p,
- "%02x%02x%02x%02x%02x%02x\n",
- rpn[0], rpn[1], rpn[2],
- rpn[3], rpn[4], rpn[5]);
- }
- len = p - buf;
- break;
default:
return 0;
}
@@ -205,23 +167,12 @@ static ssize_t key_replays_read(struct f
switch (key->conf.cipher) {
case WLAN_CIPHER_SUITE_CCMP:
- case WLAN_CIPHER_SUITE_CCMP_256:
len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
len = scnprintf(buf, sizeof(buf), "%u\n",
key->u.aes_cmac.replays);
break;
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- len = scnprintf(buf, sizeof(buf), "%u\n",
- key->u.aes_gmac.replays);
- break;
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
- len = scnprintf(buf, sizeof(buf), "%u\n", key->u.gcmp.replays);
- break;
default:
return 0;
}
@@ -238,15 +189,9 @@ static ssize_t key_icverrors_read(struct
switch (key->conf.cipher) {
case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
len = scnprintf(buf, sizeof(buf), "%u\n",
key->u.aes_cmac.icverrors);
break;
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- len = scnprintf(buf, sizeof(buf), "%u\n",
- key->u.aes_gmac.icverrors);
- break;
default:
return 0;
}
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -24,8 +24,6 @@
#include "debugfs_key.h"
#include "aes_ccm.h"
#include "aes_cmac.h"
-#include "aes_gmac.h"
-#include "aes_gcm.h"
/**
@@ -164,13 +162,7 @@ static int ieee80211_key_enable_hw_accel
case WLAN_CIPHER_SUITE_WEP104:
case WLAN_CIPHER_SUITE_TKIP:
case WLAN_CIPHER_SUITE_CCMP:
- case WLAN_CIPHER_SUITE_CCMP_256:
case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
/* all of these we can do in software - if driver can */
if (ret == 1)
return 0;
@@ -394,26 +386,7 @@ ieee80211_key_alloc(u32 cipher, int idx,
* Initialize AES key state here as an optimization so that
* it does not need to be initialized for every packet.
*/
- key->u.ccmp.tfm = ieee80211_aes_key_setup_encrypt(
- key_data, key_len, IEEE80211_CCMP_MIC_LEN);
- if (IS_ERR(key->u.ccmp.tfm)) {
- err = PTR_ERR(key->u.ccmp.tfm);
- kfree(key);
- return ERR_PTR(err);
- }
- break;
- case WLAN_CIPHER_SUITE_CCMP_256:
- key->conf.iv_len = IEEE80211_CCMP_256_HDR_LEN;
- key->conf.icv_len = IEEE80211_CCMP_256_MIC_LEN;
- for (i = 0; seq && i < IEEE80211_NUM_TIDS + 1; i++)
- for (j = 0; j < IEEE80211_CCMP_256_PN_LEN; j++)
- key->u.ccmp.rx_pn[i][j] =
- seq[IEEE80211_CCMP_256_PN_LEN - j - 1];
- /* Initialize AES key state here as an optimization so that
- * it does not need to be initialized for every packet.
- */
- key->u.ccmp.tfm = ieee80211_aes_key_setup_encrypt(
- key_data, key_len, IEEE80211_CCMP_256_MIC_LEN);
+ key->u.ccmp.tfm = ieee80211_aes_key_setup_encrypt(key_data);
if (IS_ERR(key->u.ccmp.tfm)) {
err = PTR_ERR(key->u.ccmp.tfm);
kfree(key);
@@ -421,12 +394,8 @@ ieee80211_key_alloc(u32 cipher, int idx,
}
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
key->conf.iv_len = 0;
- if (cipher == WLAN_CIPHER_SUITE_AES_CMAC)
- key->conf.icv_len = sizeof(struct ieee80211_mmie);
- else
- key->conf.icv_len = sizeof(struct ieee80211_mmie_16);
+ key->conf.icv_len = sizeof(struct ieee80211_mmie);
if (seq)
for (j = 0; j < IEEE80211_CMAC_PN_LEN; j++)
key->u.aes_cmac.rx_pn[j] =
@@ -436,51 +405,13 @@ ieee80211_key_alloc(u32 cipher, int idx,
* it does not need to be initialized for every packet.
*/
key->u.aes_cmac.tfm =
- ieee80211_aes_cmac_key_setup(key_data, key_len);
+ ieee80211_aes_cmac_key_setup(key_data);
if (IS_ERR(key->u.aes_cmac.tfm)) {
err = PTR_ERR(key->u.aes_cmac.tfm);
kfree(key);
return ERR_PTR(err);
}
break;
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- key->conf.iv_len = 0;
- key->conf.icv_len = sizeof(struct ieee80211_mmie_16);
- if (seq)
- for (j = 0; j < IEEE80211_GMAC_PN_LEN; j++)
- key->u.aes_gmac.rx_pn[j] =
- seq[IEEE80211_GMAC_PN_LEN - j - 1];
- /* Initialize AES key state here as an optimization so that
- * it does not need to be initialized for every packet.
- */
- key->u.aes_gmac.tfm =
- ieee80211_aes_gmac_key_setup(key_data, key_len);
- if (IS_ERR(key->u.aes_gmac.tfm)) {
- err = PTR_ERR(key->u.aes_gmac.tfm);
- kfree(key);
- return ERR_PTR(err);
- }
- break;
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
- key->conf.iv_len = IEEE80211_GCMP_HDR_LEN;
- key->conf.icv_len = IEEE80211_GCMP_MIC_LEN;
- for (i = 0; seq && i < IEEE80211_NUM_TIDS + 1; i++)
- for (j = 0; j < IEEE80211_GCMP_PN_LEN; j++)
- key->u.gcmp.rx_pn[i][j] =
- seq[IEEE80211_GCMP_PN_LEN - j - 1];
- /* Initialize AES key state here as an optimization so that
- * it does not need to be initialized for every packet.
- */
- key->u.gcmp.tfm = ieee80211_aes_gcm_key_setup_encrypt(key_data,
- key_len);
- if (IS_ERR(key->u.gcmp.tfm)) {
- err = PTR_ERR(key->u.gcmp.tfm);
- kfree(key);
- return ERR_PTR(err);
- }
- break;
default:
if (cs) {
size_t len = (seq_len > MAX_PN_LEN) ?
@@ -502,24 +433,10 @@ ieee80211_key_alloc(u32 cipher, int idx,
static void ieee80211_key_free_common(struct ieee80211_key *key)
{
- switch (key->conf.cipher) {
- case WLAN_CIPHER_SUITE_CCMP:
- case WLAN_CIPHER_SUITE_CCMP_256:
+ if (key->conf.cipher == WLAN_CIPHER_SUITE_CCMP)
ieee80211_aes_key_free(key->u.ccmp.tfm);
- break;
- case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
+ if (key->conf.cipher == WLAN_CIPHER_SUITE_AES_CMAC)
ieee80211_aes_cmac_key_free(key->u.aes_cmac.tfm);
- break;
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- ieee80211_aes_gmac_key_free(key->u.aes_gmac.tfm);
- break;
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
- ieee80211_aes_gcm_key_free(key->u.gcmp.tfm);
- break;
- }
kzfree(key);
}
@@ -826,7 +743,6 @@ void ieee80211_get_key_tx_seq(struct iee
seq->tkip.iv16 = key->u.tkip.tx.iv16;
break;
case WLAN_CIPHER_SUITE_CCMP:
- case WLAN_CIPHER_SUITE_CCMP_256:
pn64 = atomic64_read(&key->u.ccmp.tx_pn);
seq->ccmp.pn[5] = pn64;
seq->ccmp.pn[4] = pn64 >> 8;
@@ -836,7 +752,6 @@ void ieee80211_get_key_tx_seq(struct iee
seq->ccmp.pn[0] = pn64 >> 40;
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
seq->ccmp.pn[5] = pn64;
seq->ccmp.pn[4] = pn64 >> 8;
@@ -845,26 +760,6 @@ void ieee80211_get_key_tx_seq(struct iee
seq->ccmp.pn[1] = pn64 >> 32;
seq->ccmp.pn[0] = pn64 >> 40;
break;
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- pn64 = atomic64_read(&key->u.aes_gmac.tx_pn);
- seq->ccmp.pn[5] = pn64;
- seq->ccmp.pn[4] = pn64 >> 8;
- seq->ccmp.pn[3] = pn64 >> 16;
- seq->ccmp.pn[2] = pn64 >> 24;
- seq->ccmp.pn[1] = pn64 >> 32;
- seq->ccmp.pn[0] = pn64 >> 40;
- break;
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
- pn64 = atomic64_read(&key->u.gcmp.tx_pn);
- seq->gcmp.pn[5] = pn64;
- seq->gcmp.pn[4] = pn64 >> 8;
- seq->gcmp.pn[3] = pn64 >> 16;
- seq->gcmp.pn[2] = pn64 >> 24;
- seq->gcmp.pn[1] = pn64 >> 32;
- seq->gcmp.pn[0] = pn64 >> 40;
- break;
default:
WARN_ON(1);
}
@@ -887,7 +782,6 @@ void ieee80211_get_key_rx_seq(struct iee
seq->tkip.iv16 = key->u.tkip.rx[tid].iv16;
break;
case WLAN_CIPHER_SUITE_CCMP:
- case WLAN_CIPHER_SUITE_CCMP_256:
if (WARN_ON(tid < -1 || tid >= IEEE80211_NUM_TIDS))
return;
if (tid < 0)
@@ -897,29 +791,11 @@ void ieee80211_get_key_rx_seq(struct iee
memcpy(seq->ccmp.pn, pn, IEEE80211_CCMP_PN_LEN);
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
if (WARN_ON(tid != 0))
return;
pn = key->u.aes_cmac.rx_pn;
memcpy(seq->aes_cmac.pn, pn, IEEE80211_CMAC_PN_LEN);
break;
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- if (WARN_ON(tid != 0))
- return;
- pn = key->u.aes_gmac.rx_pn;
- memcpy(seq->aes_gmac.pn, pn, IEEE80211_GMAC_PN_LEN);
- break;
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
- if (WARN_ON(tid < -1 || tid >= IEEE80211_NUM_TIDS))
- return;
- if (tid < 0)
- pn = key->u.gcmp.rx_pn[IEEE80211_NUM_TIDS];
- else
- pn = key->u.gcmp.rx_pn[tid];
- memcpy(seq->gcmp.pn, pn, IEEE80211_GCMP_PN_LEN);
- break;
}
}
EXPORT_SYMBOL(ieee80211_get_key_rx_seq);
@@ -938,7 +814,6 @@ void ieee80211_set_key_tx_seq(struct iee
key->u.tkip.tx.iv16 = seq->tkip.iv16;
break;
case WLAN_CIPHER_SUITE_CCMP:
- case WLAN_CIPHER_SUITE_CCMP_256:
pn64 = (u64)seq->ccmp.pn[5] |
((u64)seq->ccmp.pn[4] << 8) |
((u64)seq->ccmp.pn[3] << 16) |
@@ -948,7 +823,6 @@ void ieee80211_set_key_tx_seq(struct iee
atomic64_set(&key->u.ccmp.tx_pn, pn64);
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
pn64 = (u64)seq->aes_cmac.pn[5] |
((u64)seq->aes_cmac.pn[4] << 8) |
((u64)seq->aes_cmac.pn[3] << 16) |
@@ -957,26 +831,6 @@ void ieee80211_set_key_tx_seq(struct iee
((u64)seq->aes_cmac.pn[0] << 40);
atomic64_set(&key->u.aes_cmac.tx_pn, pn64);
break;
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- pn64 = (u64)seq->aes_gmac.pn[5] |
- ((u64)seq->aes_gmac.pn[4] << 8) |
- ((u64)seq->aes_gmac.pn[3] << 16) |
- ((u64)seq->aes_gmac.pn[2] << 24) |
- ((u64)seq->aes_gmac.pn[1] << 32) |
- ((u64)seq->aes_gmac.pn[0] << 40);
- atomic64_set(&key->u.aes_gmac.tx_pn, pn64);
- break;
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
- pn64 = (u64)seq->gcmp.pn[5] |
- ((u64)seq->gcmp.pn[4] << 8) |
- ((u64)seq->gcmp.pn[3] << 16) |
- ((u64)seq->gcmp.pn[2] << 24) |
- ((u64)seq->gcmp.pn[1] << 32) |
- ((u64)seq->gcmp.pn[0] << 40);
- atomic64_set(&key->u.gcmp.tx_pn, pn64);
- break;
default:
WARN_ON(1);
break;
@@ -1000,7 +854,6 @@ void ieee80211_set_key_rx_seq(struct iee
key->u.tkip.rx[tid].iv16 = seq->tkip.iv16;
break;
case WLAN_CIPHER_SUITE_CCMP:
- case WLAN_CIPHER_SUITE_CCMP_256:
if (WARN_ON(tid < -1 || tid >= IEEE80211_NUM_TIDS))
return;
if (tid < 0)
@@ -1010,29 +863,11 @@ void ieee80211_set_key_rx_seq(struct iee
memcpy(pn, seq->ccmp.pn, IEEE80211_CCMP_PN_LEN);
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
if (WARN_ON(tid != 0))
return;
pn = key->u.aes_cmac.rx_pn;
memcpy(pn, seq->aes_cmac.pn, IEEE80211_CMAC_PN_LEN);
break;
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- if (WARN_ON(tid != 0))
- return;
- pn = key->u.aes_gmac.rx_pn;
- memcpy(pn, seq->aes_gmac.pn, IEEE80211_GMAC_PN_LEN);
- break;
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
- if (WARN_ON(tid < -1 || tid >= IEEE80211_NUM_TIDS))
- return;
- if (tid < 0)
- pn = key->u.gcmp.rx_pn[IEEE80211_NUM_TIDS];
- else
- pn = key->u.gcmp.rx_pn[tid];
- memcpy(pn, seq->gcmp.pn, IEEE80211_GCMP_PN_LEN);
- break;
default:
WARN_ON(1);
break;
--- a/net/mac80211/key.h
+++ b/net/mac80211/key.h
@@ -84,7 +84,7 @@ struct ieee80211_key {
* Management frames.
*/
u8 rx_pn[IEEE80211_NUM_TIDS + 1][IEEE80211_CCMP_PN_LEN];
- struct crypto_aead *tfm;
+ struct crypto_cipher *tfm;
u32 replays; /* dot11RSNAStatsCCMPReplays */
} ccmp;
struct {
@@ -95,24 +95,6 @@ struct ieee80211_key {
u32 icverrors; /* dot11RSNAStatsCMACICVErrors */
} aes_cmac;
struct {
- atomic64_t tx_pn;
- u8 rx_pn[IEEE80211_GMAC_PN_LEN];
- struct crypto_aead *tfm;
- u32 replays; /* dot11RSNAStatsCMACReplays */
- u32 icverrors; /* dot11RSNAStatsCMACICVErrors */
- } aes_gmac;
- struct {
- atomic64_t tx_pn;
- /* Last received packet number. The first
- * IEEE80211_NUM_TIDS counters are used with Data
- * frames and the last counter is used with Robust
- * Management frames.
- */
- u8 rx_pn[IEEE80211_NUM_TIDS + 1][IEEE80211_GCMP_PN_LEN];
- struct crypto_aead *tfm;
- u32 replays; /* dot11RSNAStatsGCMPReplays */
- } gcmp;
- struct {
/* generic cipher scheme */
u8 rx_pn[IEEE80211_NUM_TIDS + 1][MAX_PN_LEN];
} gen;
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -666,15 +666,9 @@ static int ieee80211_init_cipher_suites(
WLAN_CIPHER_SUITE_WEP104,
WLAN_CIPHER_SUITE_TKIP,
WLAN_CIPHER_SUITE_CCMP,
- WLAN_CIPHER_SUITE_CCMP_256,
- WLAN_CIPHER_SUITE_GCMP,
- WLAN_CIPHER_SUITE_GCMP_256,
/* keep last -- depends on hw flags! */
- WLAN_CIPHER_SUITE_AES_CMAC,
- WLAN_CIPHER_SUITE_BIP_CMAC_256,
- WLAN_CIPHER_SUITE_BIP_GMAC_128,
- WLAN_CIPHER_SUITE_BIP_GMAC_256,
+ WLAN_CIPHER_SUITE_AES_CMAC
};
if (local->hw.flags & IEEE80211_HW_SW_CRYPTO_CONTROL ||
@@ -713,7 +707,7 @@ static int ieee80211_init_cipher_suites(
local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
if (!have_mfp)
- local->hw.wiphy->n_cipher_suites -= 4;
+ local->hw.wiphy->n_cipher_suites--;
if (!have_wep) {
local->hw.wiphy->cipher_suites += 2;
@@ -730,42 +724,32 @@ static int ieee80211_init_cipher_suites(
/* Driver specifies cipher schemes only (but not cipher suites
* including the schemes)
*
- * We start counting ciphers defined by schemes, TKIP, CCMP,
- * CCMP-256, GCMP, and GCMP-256
+ * We start counting ciphers defined by schemes, TKIP and CCMP
*/
- n_suites = local->hw.n_cipher_schemes + 5;
+ n_suites = local->hw.n_cipher_schemes + 2;
/* check if we have WEP40 and WEP104 */
if (have_wep)
n_suites += 2;
- /* check if we have AES_CMAC, BIP-CMAC-256, BIP-GMAC-128,
- * BIP-GMAC-256
- */
+ /* check if we have AES_CMAC */
if (have_mfp)
- n_suites += 4;
+ n_suites++;
suites = kmalloc(sizeof(u32) * n_suites, GFP_KERNEL);
if (!suites)
return -ENOMEM;
suites[w++] = WLAN_CIPHER_SUITE_CCMP;
- suites[w++] = WLAN_CIPHER_SUITE_CCMP_256;
suites[w++] = WLAN_CIPHER_SUITE_TKIP;
- suites[w++] = WLAN_CIPHER_SUITE_GCMP;
- suites[w++] = WLAN_CIPHER_SUITE_GCMP_256;
if (have_wep) {
suites[w++] = WLAN_CIPHER_SUITE_WEP40;
suites[w++] = WLAN_CIPHER_SUITE_WEP104;
}
- if (have_mfp) {
+ if (have_mfp)
suites[w++] = WLAN_CIPHER_SUITE_AES_CMAC;
- suites[w++] = WLAN_CIPHER_SUITE_BIP_CMAC_256;
- suites[w++] = WLAN_CIPHER_SUITE_BIP_GMAC_128;
- suites[w++] = WLAN_CIPHER_SUITE_BIP_GMAC_256;
- }
for (r = 0; r < local->hw.n_cipher_schemes; r++)
suites[w++] = cs[r].cipher;
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -647,7 +647,6 @@ static int ieee80211_get_mmie_keyidx(str
{
struct ieee80211_mgmt *hdr = (struct ieee80211_mgmt *) skb->data;
struct ieee80211_mmie *mmie;
- struct ieee80211_mmie_16 *mmie16;
if (skb->len < 24 + sizeof(*mmie) || !is_multicast_ether_addr(hdr->da))
return -1;
@@ -657,18 +656,11 @@ static int ieee80211_get_mmie_keyidx(str
mmie = (struct ieee80211_mmie *)
(skb->data + skb->len - sizeof(*mmie));
- if (mmie->element_id == WLAN_EID_MMIE &&
- mmie->length == sizeof(*mmie) - 2)
- return le16_to_cpu(mmie->key_id);
-
- mmie16 = (struct ieee80211_mmie_16 *)
- (skb->data + skb->len - sizeof(*mmie16));
- if (skb->len >= 24 + sizeof(*mmie16) &&
- mmie16->element_id == WLAN_EID_MMIE &&
- mmie16->length == sizeof(*mmie16) - 2)
- return le16_to_cpu(mmie16->key_id);
+ if (mmie->element_id != WLAN_EID_MMIE ||
+ mmie->length != sizeof(*mmie) - 2)
+ return -1;
- return -1;
+ return le16_to_cpu(mmie->key_id);
}
static int iwl80211_get_cs_keyid(const struct ieee80211_cipher_scheme *cs,
@@ -1658,27 +1650,11 @@ ieee80211_rx_h_decrypt(struct ieee80211_
result = ieee80211_crypto_tkip_decrypt(rx);
break;
case WLAN_CIPHER_SUITE_CCMP:
- result = ieee80211_crypto_ccmp_decrypt(
- rx, IEEE80211_CCMP_MIC_LEN);
- break;
- case WLAN_CIPHER_SUITE_CCMP_256:
- result = ieee80211_crypto_ccmp_decrypt(
- rx, IEEE80211_CCMP_256_MIC_LEN);
+ result = ieee80211_crypto_ccmp_decrypt(rx);
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
result = ieee80211_crypto_aes_cmac_decrypt(rx);
break;
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
- result = ieee80211_crypto_aes_cmac_256_decrypt(rx);
- break;
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- result = ieee80211_crypto_aes_gmac_decrypt(rx);
- break;
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
- result = ieee80211_crypto_gcmp_decrypt(rx);
- break;
default:
result = ieee80211_crypto_hw_decrypt(rx);
}
@@ -1805,9 +1781,7 @@ ieee80211_rx_h_defragment(struct ieee802
/* This is the first fragment of a new frame. */
entry = ieee80211_reassemble_add(rx->sdata, frag, seq,
rx->seqno_idx, &(rx->skb));
- if (rx->key &&
- (rx->key->conf.cipher == WLAN_CIPHER_SUITE_CCMP ||
- rx->key->conf.cipher == WLAN_CIPHER_SUITE_CCMP_256) &&
+ if (rx->key && rx->key->conf.cipher == WLAN_CIPHER_SUITE_CCMP &&
ieee80211_has_protected(fc)) {
int queue = rx->security_idx;
/* Store CCMP PN so that we can verify that the next
@@ -1836,9 +1810,7 @@ ieee80211_rx_h_defragment(struct ieee802
int i;
u8 pn[IEEE80211_CCMP_PN_LEN], *rpn;
int queue;
- if (!rx->key ||
- (rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP &&
- rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP_256))
+ if (!rx->key || rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP)
return RX_DROP_UNUSABLE;
memcpy(pn, entry->last_pn, IEEE80211_CCMP_PN_LEN);
for (i = IEEE80211_CCMP_PN_LEN - 1; i >= 0; i--) {
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -626,9 +626,6 @@ ieee80211_tx_h_select_key(struct ieee802
tx->key = NULL;
break;
case WLAN_CIPHER_SUITE_CCMP:
- case WLAN_CIPHER_SUITE_CCMP_256:
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
if (!ieee80211_is_data_present(hdr->frame_control) &&
!ieee80211_use_mfp(hdr->frame_control, tx->sta,
tx->skb))
@@ -639,9 +636,6 @@ ieee80211_tx_h_select_key(struct ieee802
ieee80211_is_mgmt(hdr->frame_control);
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
if (!ieee80211_is_mgmt(hdr->frame_control))
tx->key = NULL;
break;
@@ -1017,21 +1011,9 @@ ieee80211_tx_h_encrypt(struct ieee80211_
case WLAN_CIPHER_SUITE_TKIP:
return ieee80211_crypto_tkip_encrypt(tx);
case WLAN_CIPHER_SUITE_CCMP:
- return ieee80211_crypto_ccmp_encrypt(
- tx, IEEE80211_CCMP_MIC_LEN);
- case WLAN_CIPHER_SUITE_CCMP_256:
- return ieee80211_crypto_ccmp_encrypt(
- tx, IEEE80211_CCMP_256_MIC_LEN);
+ return ieee80211_crypto_ccmp_encrypt(tx);
case WLAN_CIPHER_SUITE_AES_CMAC:
return ieee80211_crypto_aes_cmac_encrypt(tx);
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
- return ieee80211_crypto_aes_cmac_256_encrypt(tx);
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- return ieee80211_crypto_aes_gmac_encrypt(tx);
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
- return ieee80211_crypto_gcmp_encrypt(tx);
default:
return ieee80211_crypto_hw_encrypt(tx);
}
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -22,8 +22,6 @@
#include "tkip.h"
#include "aes_ccm.h"
#include "aes_cmac.h"
-#include "aes_gmac.h"
-#include "aes_gcm.h"
#include "wpa.h"
ieee80211_tx_result
@@ -304,15 +302,22 @@ ieee80211_crypto_tkip_decrypt(struct iee
}
-static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *b_0, u8 *aad)
+static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *scratch,
+ int encrypted)
{
__le16 mask_fc;
int a4_included, mgmt;
u8 qos_tid;
- u16 len_a;
+ u8 *b_0, *aad;
+ u16 data_len, len_a;
unsigned int hdrlen;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ memset(scratch, 0, 6 * AES_BLOCK_SIZE);
+
+ b_0 = scratch + 3 * AES_BLOCK_SIZE;
+ aad = scratch + 4 * AES_BLOCK_SIZE;
+
/*
* Mask FC: zero subtype b4 b5 b6 (if not mgmt)
* Retry, PwrMgt, MoreData; set Protected
@@ -334,21 +339,20 @@ static void ccmp_special_blocks(struct s
else
qos_tid = 0;
- /* In CCM, the initial vectors (IV) used for CTR mode encryption and CBC
- * mode authentication are not allowed to collide, yet both are derived
- * from this vector b_0. We only set L := 1 here to indicate that the
- * data size can be represented in (L+1) bytes. The CCM layer will take
- * care of storing the data length in the top (L+1) bytes and setting
- * and clearing the other bits as is required to derive the two IVs.
- */
- b_0[0] = 0x1;
+ data_len = skb->len - hdrlen - IEEE80211_CCMP_HDR_LEN;
+ if (encrypted)
+ data_len -= IEEE80211_CCMP_MIC_LEN;
+ /* First block, b_0 */
+ b_0[0] = 0x59; /* flags: Adata: 1, M: 011, L: 001 */
/* Nonce: Nonce Flags | A2 | PN
* Nonce Flags: Priority (b0..b3) | Management (b4) | Reserved (b5..b7)
*/
b_0[1] = qos_tid | (mgmt << 4);
memcpy(&b_0[2], hdr->addr2, ETH_ALEN);
memcpy(&b_0[8], pn, IEEE80211_CCMP_PN_LEN);
+ /* l(m) */
+ put_unaligned_be16(data_len, &b_0[14]);
/* AAD (extra authenticate-only data) / masked 802.11 header
* FC | A1 | A2 | A3 | SC | [A4] | [QC] */
@@ -395,8 +399,7 @@ static inline void ccmp_hdr2pn(u8 *pn, u
}
-static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb,
- unsigned int mic_len)
+static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_key *key = tx->key;
@@ -405,8 +408,7 @@ static int ccmp_encrypt_skb(struct ieee8
u8 *pos;
u8 pn[6];
u64 pn64;
- u8 aad[2 * AES_BLOCK_SIZE];
- u8 b_0[AES_BLOCK_SIZE];
+ u8 scratch[6 * AES_BLOCK_SIZE];
if (info->control.hw_key &&
!(info->control.hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV) &&
@@ -427,7 +429,7 @@ static int ccmp_encrypt_skb(struct ieee8
if (info->control.hw_key)
tail = 0;
else
- tail = mic_len;
+ tail = IEEE80211_CCMP_MIC_LEN;
if (WARN_ON(skb_tailroom(skb) < tail ||
skb_headroom(skb) < IEEE80211_CCMP_HDR_LEN))
@@ -460,24 +462,23 @@ static int ccmp_encrypt_skb(struct ieee8
return 0;
pos += IEEE80211_CCMP_HDR_LEN;
- ccmp_special_blocks(skb, pn, b_0, aad);
- ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, b_0, aad, pos, len,
- skb_put(skb, mic_len), mic_len);
+ ccmp_special_blocks(skb, pn, scratch, 0);
+ ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, scratch, pos, len,
+ pos, skb_put(skb, IEEE80211_CCMP_MIC_LEN));
return 0;
}
ieee80211_tx_result
-ieee80211_crypto_ccmp_encrypt(struct ieee80211_tx_data *tx,
- unsigned int mic_len)
+ieee80211_crypto_ccmp_encrypt(struct ieee80211_tx_data *tx)
{
struct sk_buff *skb;
ieee80211_tx_set_protected(tx);
skb_queue_walk(&tx->skbs, skb) {
- if (ccmp_encrypt_skb(tx, skb, mic_len) < 0)
+ if (ccmp_encrypt_skb(tx, skb) < 0)
return TX_DROP;
}
@@ -486,8 +487,7 @@ ieee80211_crypto_ccmp_encrypt(struct iee
ieee80211_rx_result
-ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx,
- unsigned int mic_len)
+ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
int hdrlen;
@@ -504,7 +504,8 @@ ieee80211_crypto_ccmp_decrypt(struct iee
!ieee80211_is_robust_mgmt_frame(skb))
return RX_CONTINUE;
- data_len = skb->len - hdrlen - IEEE80211_CCMP_HDR_LEN - mic_len;
+ data_len = skb->len - hdrlen - IEEE80211_CCMP_HDR_LEN -
+ IEEE80211_CCMP_MIC_LEN;
if (!rx->sta || data_len < 0)
return RX_DROP_UNUSABLE;
@@ -526,23 +527,23 @@ ieee80211_crypto_ccmp_decrypt(struct iee
}
if (!(status->flag & RX_FLAG_DECRYPTED)) {
- u8 aad[2 * AES_BLOCK_SIZE];
- u8 b_0[AES_BLOCK_SIZE];
+ u8 scratch[6 * AES_BLOCK_SIZE];
/* hardware didn't decrypt/verify MIC */
- ccmp_special_blocks(skb, pn, b_0, aad);
+ ccmp_special_blocks(skb, pn, scratch, 1);
if (ieee80211_aes_ccm_decrypt(
- key->u.ccmp.tfm, b_0, aad,
+ key->u.ccmp.tfm, scratch,
skb->data + hdrlen + IEEE80211_CCMP_HDR_LEN,
data_len,
- skb->data + skb->len - mic_len, mic_len))
+ skb->data + skb->len - IEEE80211_CCMP_MIC_LEN,
+ skb->data + hdrlen + IEEE80211_CCMP_HDR_LEN))
return RX_DROP_UNUSABLE;
}
memcpy(key->u.ccmp.rx_pn[queue], pn, IEEE80211_CCMP_PN_LEN);
/* Remove CCMP header and MIC */
- if (pskb_trim(skb, skb->len - mic_len))
+ if (pskb_trim(skb, skb->len - IEEE80211_CCMP_MIC_LEN))
return RX_DROP_UNUSABLE;
memmove(skb->data + IEEE80211_CCMP_HDR_LEN, skb->data, hdrlen);
skb_pull(skb, IEEE80211_CCMP_HDR_LEN);
@@ -550,229 +551,6 @@ ieee80211_crypto_ccmp_decrypt(struct iee
return RX_CONTINUE;
}
-static void gcmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *j_0, u8 *aad)
-{
- __le16 mask_fc;
- u8 qos_tid;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-
- memcpy(j_0, hdr->addr2, ETH_ALEN);
- memcpy(&j_0[ETH_ALEN], pn, IEEE80211_GCMP_PN_LEN);
- j_0[13] = 0;
- j_0[14] = 0;
- j_0[AES_BLOCK_SIZE - 1] = 0x01;
-
- /* AAD (extra authenticate-only data) / masked 802.11 header
- * FC | A1 | A2 | A3 | SC | [A4] | [QC]
- */
- put_unaligned_be16(ieee80211_hdrlen(hdr->frame_control) - 2, &aad[0]);
- /* Mask FC: zero subtype b4 b5 b6 (if not mgmt)
- * Retry, PwrMgt, MoreData; set Protected
- */
- mask_fc = hdr->frame_control;
- mask_fc &= ~cpu_to_le16(IEEE80211_FCTL_RETRY |
- IEEE80211_FCTL_PM | IEEE80211_FCTL_MOREDATA);
- if (!ieee80211_is_mgmt(hdr->frame_control))
- mask_fc &= ~cpu_to_le16(0x0070);
- mask_fc |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
-
- put_unaligned(mask_fc, (__le16 *)&aad[2]);
- memcpy(&aad[4], &hdr->addr1, 3 * ETH_ALEN);
-
- /* Mask Seq#, leave Frag# */
- aad[22] = *((u8 *)&hdr->seq_ctrl) & 0x0f;
- aad[23] = 0;
-
- if (ieee80211_is_data_qos(hdr->frame_control))
- qos_tid = *ieee80211_get_qos_ctl(hdr) &
- IEEE80211_QOS_CTL_TID_MASK;
- else
- qos_tid = 0;
-
- if (ieee80211_has_a4(hdr->frame_control)) {
- memcpy(&aad[24], hdr->addr4, ETH_ALEN);
- aad[30] = qos_tid;
- aad[31] = 0;
- } else {
- memset(&aad[24], 0, ETH_ALEN + IEEE80211_QOS_CTL_LEN);
- aad[24] = qos_tid;
- }
-}
-
-static inline void gcmp_pn2hdr(u8 *hdr, const u8 *pn, int key_id)
-{
- hdr[0] = pn[5];
- hdr[1] = pn[4];
- hdr[2] = 0;
- hdr[3] = 0x20 | (key_id << 6);
- hdr[4] = pn[3];
- hdr[5] = pn[2];
- hdr[6] = pn[1];
- hdr[7] = pn[0];
-}
-
-static inline void gcmp_hdr2pn(u8 *pn, const u8 *hdr)
-{
- pn[0] = hdr[7];
- pn[1] = hdr[6];
- pn[2] = hdr[5];
- pn[3] = hdr[4];
- pn[4] = hdr[1];
- pn[5] = hdr[0];
-}
-
-static int gcmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- struct ieee80211_key *key = tx->key;
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- int hdrlen, len, tail;
- u8 *pos;
- u8 pn[6];
- u64 pn64;
- u8 aad[2 * AES_BLOCK_SIZE];
- u8 j_0[AES_BLOCK_SIZE];
-
- if (info->control.hw_key &&
- !(info->control.hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV) &&
- !(info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) &&
- !((info->control.hw_key->flags &
- IEEE80211_KEY_FLAG_GENERATE_IV_MGMT) &&
- ieee80211_is_mgmt(hdr->frame_control))) {
- /* hwaccel has no need for preallocated room for GCMP
- * header or MIC fields
- */
- return 0;
- }
-
- hdrlen = ieee80211_hdrlen(hdr->frame_control);
- len = skb->len - hdrlen;
-
- if (info->control.hw_key)
- tail = 0;
- else
- tail = IEEE80211_GCMP_MIC_LEN;
-
- if (WARN_ON(skb_tailroom(skb) < tail ||
- skb_headroom(skb) < IEEE80211_GCMP_HDR_LEN))
- return -1;
-
- pos = skb_push(skb, IEEE80211_GCMP_HDR_LEN);
- memmove(pos, pos + IEEE80211_GCMP_HDR_LEN, hdrlen);
- skb_set_network_header(skb, skb_network_offset(skb) +
- IEEE80211_GCMP_HDR_LEN);
-
- /* the HW only needs room for the IV, but not the actual IV */
- if (info->control.hw_key &&
- (info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))
- return 0;
-
- hdr = (struct ieee80211_hdr *)pos;
- pos += hdrlen;
-
- pn64 = atomic64_inc_return(&key->u.gcmp.tx_pn);
-
- pn[5] = pn64;
- pn[4] = pn64 >> 8;
- pn[3] = pn64 >> 16;
- pn[2] = pn64 >> 24;
- pn[1] = pn64 >> 32;
- pn[0] = pn64 >> 40;
-
- gcmp_pn2hdr(pos, pn, key->conf.keyidx);
-
- /* hwaccel - with software GCMP header */
- if (info->control.hw_key)
- return 0;
-
- pos += IEEE80211_GCMP_HDR_LEN;
- gcmp_special_blocks(skb, pn, j_0, aad);
- ieee80211_aes_gcm_encrypt(key->u.gcmp.tfm, j_0, aad, pos, len,
- skb_put(skb, IEEE80211_GCMP_MIC_LEN));
-
- return 0;
-}
-
-ieee80211_tx_result
-ieee80211_crypto_gcmp_encrypt(struct ieee80211_tx_data *tx)
-{
- struct sk_buff *skb;
-
- ieee80211_tx_set_protected(tx);
-
- skb_queue_walk(&tx->skbs, skb) {
- if (gcmp_encrypt_skb(tx, skb) < 0)
- return TX_DROP;
- }
-
- return TX_CONTINUE;
-}
-
-ieee80211_rx_result
-ieee80211_crypto_gcmp_decrypt(struct ieee80211_rx_data *rx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
- int hdrlen;
- struct ieee80211_key *key = rx->key;
- struct sk_buff *skb = rx->skb;
- struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
- u8 pn[IEEE80211_GCMP_PN_LEN];
- int data_len;
- int queue;
-
- hdrlen = ieee80211_hdrlen(hdr->frame_control);
-
- if (!ieee80211_is_data(hdr->frame_control) &&
- !ieee80211_is_robust_mgmt_frame(skb))
- return RX_CONTINUE;
-
- data_len = skb->len - hdrlen - IEEE80211_GCMP_HDR_LEN -
- IEEE80211_GCMP_MIC_LEN;
- if (!rx->sta || data_len < 0)
- return RX_DROP_UNUSABLE;
-
- if (status->flag & RX_FLAG_DECRYPTED) {
- if (!pskb_may_pull(rx->skb, hdrlen + IEEE80211_GCMP_HDR_LEN))
- return RX_DROP_UNUSABLE;
- } else {
- if (skb_linearize(rx->skb))
- return RX_DROP_UNUSABLE;
- }
-
- gcmp_hdr2pn(pn, skb->data + hdrlen);
-
- queue = rx->security_idx;
-
- if (memcmp(pn, key->u.gcmp.rx_pn[queue], IEEE80211_GCMP_PN_LEN) <= 0) {
- key->u.gcmp.replays++;
- return RX_DROP_UNUSABLE;
- }
-
- if (!(status->flag & RX_FLAG_DECRYPTED)) {
- u8 aad[2 * AES_BLOCK_SIZE];
- u8 j_0[AES_BLOCK_SIZE];
- /* hardware didn't decrypt/verify MIC */
- gcmp_special_blocks(skb, pn, j_0, aad);
-
- if (ieee80211_aes_gcm_decrypt(
- key->u.gcmp.tfm, j_0, aad,
- skb->data + hdrlen + IEEE80211_GCMP_HDR_LEN,
- data_len,
- skb->data + skb->len - IEEE80211_GCMP_MIC_LEN))
- return RX_DROP_UNUSABLE;
- }
-
- memcpy(key->u.gcmp.rx_pn[queue], pn, IEEE80211_GCMP_PN_LEN);
-
- /* Remove GCMP header and MIC */
- if (pskb_trim(skb, skb->len - IEEE80211_GCMP_MIC_LEN))
- return RX_DROP_UNUSABLE;
- memmove(skb->data + IEEE80211_GCMP_HDR_LEN, skb->data, hdrlen);
- skb_pull(skb, IEEE80211_GCMP_HDR_LEN);
-
- return RX_CONTINUE;
-}
-
static ieee80211_tx_result
ieee80211_crypto_cs_encrypt(struct ieee80211_tx_data *tx,
struct sk_buff *skb)
@@ -956,48 +734,6 @@ ieee80211_crypto_aes_cmac_encrypt(struct
return TX_CONTINUE;
}
-ieee80211_tx_result
-ieee80211_crypto_aes_cmac_256_encrypt(struct ieee80211_tx_data *tx)
-{
- struct sk_buff *skb;
- struct ieee80211_tx_info *info;
- struct ieee80211_key *key = tx->key;
- struct ieee80211_mmie_16 *mmie;
- u8 aad[20];
- u64 pn64;
-
- if (WARN_ON(skb_queue_len(&tx->skbs) != 1))
- return TX_DROP;
-
- skb = skb_peek(&tx->skbs);
-
- info = IEEE80211_SKB_CB(skb);
-
- if (info->control.hw_key)
- return TX_CONTINUE;
-
- if (WARN_ON(skb_tailroom(skb) < sizeof(*mmie)))
- return TX_DROP;
-
- mmie = (struct ieee80211_mmie_16 *)skb_put(skb, sizeof(*mmie));
- mmie->element_id = WLAN_EID_MMIE;
- mmie->length = sizeof(*mmie) - 2;
- mmie->key_id = cpu_to_le16(key->conf.keyidx);
-
- /* PN = PN + 1 */
- pn64 = atomic64_inc_return(&key->u.aes_cmac.tx_pn);
-
- bip_ipn_set64(mmie->sequence_number, pn64);
-
- bip_aad(skb, aad);
-
- /* MIC = AES-256-CMAC(IGTK, AAD || Management Frame Body || MMIE, 128)
- */
- ieee80211_aes_cmac_256(key->u.aes_cmac.tfm, aad,
- skb->data + 24, skb->len - 24, mmie->mic);
-
- return TX_CONTINUE;
-}
ieee80211_rx_result
ieee80211_crypto_aes_cmac_decrypt(struct ieee80211_rx_data *rx)
@@ -1045,160 +781,6 @@ ieee80211_crypto_aes_cmac_decrypt(struct
/* Remove MMIE */
skb_trim(skb, skb->len - sizeof(*mmie));
-
- return RX_CONTINUE;
-}
-
-ieee80211_rx_result
-ieee80211_crypto_aes_cmac_256_decrypt(struct ieee80211_rx_data *rx)
-{
- struct sk_buff *skb = rx->skb;
- struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
- struct ieee80211_key *key = rx->key;
- struct ieee80211_mmie_16 *mmie;
- u8 aad[20], mic[16], ipn[6];
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-
- if (!ieee80211_is_mgmt(hdr->frame_control))
- return RX_CONTINUE;
-
- /* management frames are already linear */
-
- if (skb->len < 24 + sizeof(*mmie))
- return RX_DROP_UNUSABLE;
-
- mmie = (struct ieee80211_mmie_16 *)
- (skb->data + skb->len - sizeof(*mmie));
- if (mmie->element_id != WLAN_EID_MMIE ||
- mmie->length != sizeof(*mmie) - 2)
- return RX_DROP_UNUSABLE; /* Invalid MMIE */
-
- bip_ipn_swap(ipn, mmie->sequence_number);
-
- if (memcmp(ipn, key->u.aes_cmac.rx_pn, 6) <= 0) {
- key->u.aes_cmac.replays++;
- return RX_DROP_UNUSABLE;
- }
-
- if (!(status->flag & RX_FLAG_DECRYPTED)) {
- /* hardware didn't decrypt/verify MIC */
- bip_aad(skb, aad);
- ieee80211_aes_cmac_256(key->u.aes_cmac.tfm, aad,
- skb->data + 24, skb->len - 24, mic);
- if (memcmp(mic, mmie->mic, sizeof(mmie->mic)) != 0) {
- key->u.aes_cmac.icverrors++;
- return RX_DROP_UNUSABLE;
- }
- }
-
- memcpy(key->u.aes_cmac.rx_pn, ipn, 6);
-
- /* Remove MMIE */
- skb_trim(skb, skb->len - sizeof(*mmie));
-
- return RX_CONTINUE;
-}
-
-ieee80211_tx_result
-ieee80211_crypto_aes_gmac_encrypt(struct ieee80211_tx_data *tx)
-{
- struct sk_buff *skb;
- struct ieee80211_tx_info *info;
- struct ieee80211_key *key = tx->key;
- struct ieee80211_mmie_16 *mmie;
- struct ieee80211_hdr *hdr;
- u8 aad[20];
- u64 pn64;
- u8 nonce[12];
-
- if (WARN_ON(skb_queue_len(&tx->skbs) != 1))
- return TX_DROP;
-
- skb = skb_peek(&tx->skbs);
-
- info = IEEE80211_SKB_CB(skb);
-
- if (info->control.hw_key)
- return TX_CONTINUE;
-
- if (WARN_ON(skb_tailroom(skb) < sizeof(*mmie)))
- return TX_DROP;
-
- mmie = (struct ieee80211_mmie_16 *)skb_put(skb, sizeof(*mmie));
- mmie->element_id = WLAN_EID_MMIE;
- mmie->length = sizeof(*mmie) - 2;
- mmie->key_id = cpu_to_le16(key->conf.keyidx);
-
- /* PN = PN + 1 */
- pn64 = atomic64_inc_return(&key->u.aes_gmac.tx_pn);
-
- bip_ipn_set64(mmie->sequence_number, pn64);
-
- bip_aad(skb, aad);
-
- hdr = (struct ieee80211_hdr *)skb->data;
- memcpy(nonce, hdr->addr2, ETH_ALEN);
- bip_ipn_swap(nonce + ETH_ALEN, mmie->sequence_number);
-
- /* MIC = AES-GMAC(IGTK, AAD || Management Frame Body || MMIE, 128) */
- if (ieee80211_aes_gmac(key->u.aes_gmac.tfm, aad, nonce,
- skb->data + 24, skb->len - 24, mmie->mic) < 0)
- return TX_DROP;
-
- return TX_CONTINUE;
-}
-
-ieee80211_rx_result
-ieee80211_crypto_aes_gmac_decrypt(struct ieee80211_rx_data *rx)
-{
- struct sk_buff *skb = rx->skb;
- struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
- struct ieee80211_key *key = rx->key;
- struct ieee80211_mmie_16 *mmie;
- u8 aad[20], mic[16], ipn[6], nonce[12];
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-
- if (!ieee80211_is_mgmt(hdr->frame_control))
- return RX_CONTINUE;
-
- /* management frames are already linear */
-
- if (skb->len < 24 + sizeof(*mmie))
- return RX_DROP_UNUSABLE;
-
- mmie = (struct ieee80211_mmie_16 *)
- (skb->data + skb->len - sizeof(*mmie));
- if (mmie->element_id != WLAN_EID_MMIE ||
- mmie->length != sizeof(*mmie) - 2)
- return RX_DROP_UNUSABLE; /* Invalid MMIE */
-
- bip_ipn_swap(ipn, mmie->sequence_number);
-
- if (memcmp(ipn, key->u.aes_gmac.rx_pn, 6) <= 0) {
- key->u.aes_gmac.replays++;
- return RX_DROP_UNUSABLE;
- }
-
- if (!(status->flag & RX_FLAG_DECRYPTED)) {
- /* hardware didn't decrypt/verify MIC */
- bip_aad(skb, aad);
-
- memcpy(nonce, hdr->addr2, ETH_ALEN);
- memcpy(nonce + ETH_ALEN, ipn, 6);
-
- if (ieee80211_aes_gmac(key->u.aes_gmac.tfm, aad, nonce,
- skb->data + 24, skb->len - 24,
- mic) < 0 ||
- memcmp(mic, mmie->mic, sizeof(mmie->mic)) != 0) {
- key->u.aes_gmac.icverrors++;
- return RX_DROP_UNUSABLE;
- }
- }
-
- memcpy(key->u.aes_gmac.rx_pn, ipn, 6);
-
- /* Remove MMIE */
- skb_trim(skb, skb->len - sizeof(*mmie));
return RX_CONTINUE;
}
--- a/net/mac80211/wpa.h
+++ b/net/mac80211/wpa.h
@@ -24,32 +24,17 @@ ieee80211_rx_result
ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx);
ieee80211_tx_result
-ieee80211_crypto_ccmp_encrypt(struct ieee80211_tx_data *tx,
- unsigned int mic_len);
+ieee80211_crypto_ccmp_encrypt(struct ieee80211_tx_data *tx);
ieee80211_rx_result
-ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx,
- unsigned int mic_len);
+ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx);
ieee80211_tx_result
ieee80211_crypto_aes_cmac_encrypt(struct ieee80211_tx_data *tx);
-ieee80211_tx_result
-ieee80211_crypto_aes_cmac_256_encrypt(struct ieee80211_tx_data *tx);
ieee80211_rx_result
ieee80211_crypto_aes_cmac_decrypt(struct ieee80211_rx_data *rx);
-ieee80211_rx_result
-ieee80211_crypto_aes_cmac_256_decrypt(struct ieee80211_rx_data *rx);
-ieee80211_tx_result
-ieee80211_crypto_aes_gmac_encrypt(struct ieee80211_tx_data *tx);
-ieee80211_rx_result
-ieee80211_crypto_aes_gmac_decrypt(struct ieee80211_rx_data *rx);
ieee80211_tx_result
ieee80211_crypto_hw_encrypt(struct ieee80211_tx_data *tx);
ieee80211_rx_result
ieee80211_crypto_hw_decrypt(struct ieee80211_rx_data *rx);
-ieee80211_tx_result
-ieee80211_crypto_gcmp_encrypt(struct ieee80211_tx_data *tx);
-ieee80211_rx_result
-ieee80211_crypto_gcmp_decrypt(struct ieee80211_rx_data *rx);
-
#endif /* WPA_H */
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