mac80211: update to wireless-testing 2017-01-31
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau
@@ -18,12 +18,12 @@
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- aes_gcm.o \
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aes_cmac.o \
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- aes_gmac.o \
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fils_aead.o \
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cfg.o \
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ethtool.o \
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rx.o \
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--- a/net/mac80211/aes_ccm.c
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+++ b/net/mac80211/aes_ccm.c
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@@ -13,89 +13,132 @@
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@@ -13,103 +13,132 @@
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#include <linux/types.h>
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#include <linux/err.h>
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#include <crypto/aead.h>
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@@ -33,76 +33,101 @@
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#include "key.h"
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#include "aes_ccm.h"
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-void ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
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- u8 *data, size_t data_len, u8 *mic,
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- size_t mic_len)
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-int ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
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- u8 *data, size_t data_len, u8 *mic,
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- size_t mic_len)
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+static void aes_ccm_prepare(struct crypto_cipher *tfm, u8 *b_0, u8 *aad, u8 *s_0,
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+ u8 *a, u8 *b)
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{
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- struct scatterlist sg[3];
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- struct aead_request *aead_req;
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- int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm);
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- u8 *__aad;
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+ int i;
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+
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- aead_req = kzalloc(reqsize + CCM_AAD_LEN, GFP_ATOMIC);
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- if (!aead_req)
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- return -ENOMEM;
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+ crypto_cipher_encrypt_one(tfm, b, b_0);
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+
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- __aad = (u8 *)aead_req + reqsize;
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- memcpy(__aad, aad, CCM_AAD_LEN);
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+ /* Extra Authenticate-only data (always two AES blocks) */
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+ for (i = 0; i < AES_BLOCK_SIZE; i++)
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+ aad[i] ^= b[i];
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+ crypto_cipher_encrypt_one(tfm, b, aad);
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+
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+ aad += AES_BLOCK_SIZE;
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+
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+ for (i = 0; i < AES_BLOCK_SIZE; i++)
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+ aad[i] ^= b[i];
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+ crypto_cipher_encrypt_one(tfm, a, aad);
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- char aead_req_data[sizeof(struct aead_request) +
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- crypto_aead_reqsize(tfm)]
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- __aligned(__alignof__(struct aead_request));
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- struct aead_request *aead_req = (void *) aead_req_data;
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+ /* Mask out bits from auth-only-b_0 */
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+ b_0[0] &= 0x07;
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- memset(aead_req, 0, sizeof(aead_req_data));
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+ /* S_0 is used to encrypt T (= MIC) */
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+ b_0[14] = 0;
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+ b_0[15] = 0;
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+ crypto_cipher_encrypt_one(tfm, s_0, b_0);
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+}
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- sg_init_table(sg, 3);
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- sg_set_buf(&sg[0], &aad[2], be16_to_cpup((__be16 *)aad));
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- sg_set_buf(&sg[0], &__aad[2], be16_to_cpup((__be16 *)__aad));
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- sg_set_buf(&sg[1], data, data_len);
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- sg_set_buf(&sg[2], mic, mic_len);
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+ aad += AES_BLOCK_SIZE;
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- aead_request_set_tfm(aead_req, tfm);
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- aead_request_set_crypt(aead_req, sg, sg, data_len, b_0);
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- aead_request_set_ad(aead_req, sg[0].length);
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+ for (i = 0; i < AES_BLOCK_SIZE; i++)
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+ aad[i] ^= b[i];
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+ crypto_cipher_encrypt_one(tfm, a, aad);
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- crypto_aead_encrypt(aead_req);
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- kzfree(aead_req);
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+ /* Mask out bits from auth-only-b_0 */
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+ b_0[0] &= 0x07;
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- return 0;
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+ /* S_0 is used to encrypt T (= MIC) */
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+ b_0[14] = 0;
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+ b_0[15] = 0;
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+ crypto_cipher_encrypt_one(tfm, s_0, b_0);
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}
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-int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
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- u8 *data, size_t data_len, u8 *mic,
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- size_t mic_len)
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+
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+void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *b_0, u8 *aad,
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+ u8 *data, size_t data_len, u8 *mic,
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+ size_t mic_len)
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+{
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{
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- struct scatterlist sg[3];
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- struct aead_request *aead_req;
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- int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm);
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- u8 *__aad;
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- int err;
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+ int i, j, last_len, num_blocks;
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+ u8 b[AES_BLOCK_SIZE];
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+ u8 s_0[AES_BLOCK_SIZE];
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+ u8 e[AES_BLOCK_SIZE];
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+ u8 *pos, *cpos;
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+
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- if (data_len == 0)
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- return -EINVAL;
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+ num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_SIZE);
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+ last_len = data_len % AES_BLOCK_SIZE;
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+ aes_ccm_prepare(tfm, b_0, aad, s_0, b, b);
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+
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- aead_req = kzalloc(reqsize + CCM_AAD_LEN, GFP_ATOMIC);
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- if (!aead_req)
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- return -ENOMEM;
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+ /* Process payload blocks */
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+ pos = data;
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+ cpos = data;
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+ for (j = 1; j <= num_blocks; j++) {
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+ int blen = (j == num_blocks && last_len) ?
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+ last_len : AES_BLOCK_SIZE;
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+
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- __aad = (u8 *)aead_req + reqsize;
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- memcpy(__aad, aad, CCM_AAD_LEN);
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+ /* Authentication followed by encryption */
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+ for (i = 0; i < blen; i++)
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+ b[i] ^= pos[i];
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+ crypto_cipher_encrypt_one(tfm, b, b);
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+
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- sg_init_table(sg, 3);
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- sg_set_buf(&sg[0], &__aad[2], be16_to_cpup((__be16 *)__aad));
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- sg_set_buf(&sg[1], data, data_len);
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- sg_set_buf(&sg[2], mic, mic_len);
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+ b_0[14] = (j >> 8) & 0xff;
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+ b_0[15] = j & 0xff;
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+ crypto_cipher_encrypt_one(tfm, e, b_0);
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@@ -110,41 +135,26 @@
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+ *cpos++ = *pos++ ^ e[i];
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+ }
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- crypto_aead_encrypt(aead_req);
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+ for (i = 0; i < mic_len; i++)
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+ mic[i] = b[i] ^ s_0[i];
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}
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-int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
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+int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *b_0, u8 *aad,
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u8 *data, size_t data_len, u8 *mic,
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size_t mic_len)
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{
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- struct scatterlist sg[3];
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- char aead_req_data[sizeof(struct aead_request) +
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- crypto_aead_reqsize(tfm)]
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- __aligned(__alignof__(struct aead_request));
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- struct aead_request *aead_req = (void *) aead_req_data;
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-
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- if (data_len == 0)
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- return -EINVAL;
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-
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- memset(aead_req, 0, sizeof(aead_req_data));
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-
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- sg_init_table(sg, 3);
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- sg_set_buf(&sg[0], &aad[2], be16_to_cpup((__be16 *)aad));
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- sg_set_buf(&sg[1], data, data_len);
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- sg_set_buf(&sg[2], mic, mic_len);
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-
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- aead_request_set_tfm(aead_req, tfm);
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- aead_request_set_crypt(aead_req, sg, sg, data_len + mic_len, b_0);
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- aead_request_set_ad(aead_req, sg[0].length);
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+ for (i = 0; i < mic_len; i++)
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+ mic[i] = b[i] ^ s_0[i];
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+}
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- err = crypto_aead_decrypt(aead_req);
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- kzfree(aead_req);
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+int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *b_0, u8 *aad,
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+ u8 *data, size_t data_len, u8 *mic,
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+ size_t mic_len)
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+{
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+ int i, j, last_len, num_blocks;
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+ u8 *pos, *cpos;
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+ u8 a[AES_BLOCK_SIZE];
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+ u8 b[AES_BLOCK_SIZE];
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+ u8 s_0[AES_BLOCK_SIZE];
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+
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- return err;
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+ num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_SIZE);
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+ last_len = data_len % AES_BLOCK_SIZE;
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+ aes_ccm_prepare(tfm, b_0, aad, s_0, a, b);
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@@ -171,8 +181,7 @@
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+ if ((mic[i] ^ s_0[i]) != a[i])
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+ return -1;
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+ }
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- return crypto_aead_decrypt(aead_req);
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+
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+ return 0;
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}
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@@ -185,12 +194,12 @@
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{
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- struct crypto_aead *tfm;
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- int err;
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+ struct crypto_cipher *tfm;
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-
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- tfm = crypto_alloc_aead("ccm(aes)", 0, CRYPTO_ALG_ASYNC);
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- if (IS_ERR(tfm))
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- return tfm;
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-
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+ struct crypto_cipher *tfm;
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- err = crypto_aead_setkey(tfm, key, key_len);
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- if (err)
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- goto free_aead;
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@@ -215,73 +224,11 @@
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- crypto_free_aead(tfm);
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+ crypto_free_cipher(tfm);
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}
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--- a/net/mac80211/aes_ccm.h
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+++ b/net/mac80211/aes_ccm.h
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@@ -12,15 +12,15 @@
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#include <linux/crypto.h>
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-struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[],
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- size_t key_len,
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- size_t mic_len);
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-void ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
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+struct crypto_cipher *ieee80211_aes_key_setup_encrypt(const u8 key[],
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+ size_t key_len,
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+ size_t mic_len);
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+void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *b_0, u8 *aad,
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u8 *data, size_t data_len, u8 *mic,
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size_t mic_len);
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-int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
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+int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *b_0, u8 *aad,
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u8 *data, size_t data_len, u8 *mic,
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size_t mic_len);
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-void ieee80211_aes_key_free(struct crypto_aead *tfm);
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+void ieee80211_aes_key_free(struct crypto_cipher *tfm);
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#endif /* AES_CCM_H */
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--- a/net/mac80211/aes_gcm.h
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+++ b/net/mac80211/aes_gcm.h
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@@ -11,12 +11,28 @@
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#include <linux/crypto.h>
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-void ieee80211_aes_gcm_encrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad,
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- u8 *data, size_t data_len, u8 *mic);
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-int ieee80211_aes_gcm_decrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad,
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- u8 *data, size_t data_len, u8 *mic);
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-struct crypto_aead *ieee80211_aes_gcm_key_setup_encrypt(const u8 key[],
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- size_t key_len);
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-void ieee80211_aes_gcm_key_free(struct crypto_aead *tfm);
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+static inline void
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+ieee80211_aes_gcm_encrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad,
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+ u8 *data, size_t data_len, u8 *mic)
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+{
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+}
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+
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+static inline int
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+ieee80211_aes_gcm_decrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad,
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+ u8 *data, size_t data_len, u8 *mic)
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+{
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+ return -EOPNOTSUPP;
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+}
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+
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+static inline struct crypto_aead *
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+ieee80211_aes_gcm_key_setup_encrypt(const u8 key[], size_t key_len)
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+{
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+ return NULL;
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+}
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+
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+static inline void
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+ieee80211_aes_gcm_key_free(struct crypto_aead *tfm)
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+{
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+}
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#endif /* AES_GCM_H */
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--- a/net/mac80211/aes_gmac.h
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+++ b/net/mac80211/aes_gmac.h
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@@ -11,10 +11,22 @@
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#include <linux/crypto.h>
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@@ -15,10 +15,22 @@
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#define GMAC_MIC_LEN 16
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#define GMAC_NONCE_LEN 12
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-struct crypto_aead *ieee80211_aes_gmac_key_setup(const u8 key[],
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- size_t key_len);
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@@ -320,7 +267,7 @@
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struct {
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--- a/net/mac80211/wpa.c
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+++ b/net/mac80211/wpa.c
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@@ -304,7 +304,8 @@ ieee80211_crypto_tkip_decrypt(struct iee
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@@ -305,7 +305,8 @@ ieee80211_crypto_tkip_decrypt(struct iee
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}
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@@ -330,7 +277,7 @@
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{
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__le16 mask_fc;
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int a4_included, mgmt;
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@@ -334,14 +335,8 @@ static void ccmp_special_blocks(struct s
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@@ -335,14 +336,8 @@ static void ccmp_special_blocks(struct s
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else
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qos_tid = 0;
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@@ -347,7 +294,7 @@
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/* Nonce: Nonce Flags | A2 | PN
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* Nonce Flags: Priority (b0..b3) | Management (b4) | Reserved (b5..b7)
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@@ -349,6 +344,8 @@ static void ccmp_special_blocks(struct s
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@@ -350,6 +345,8 @@ static void ccmp_special_blocks(struct s
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b_0[1] = qos_tid | (mgmt << 4);
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memcpy(&b_0[2], hdr->addr2, ETH_ALEN);
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memcpy(&b_0[8], pn, IEEE80211_CCMP_PN_LEN);
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@@ -356,16 +303,31 @@
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/* AAD (extra authenticate-only data) / masked 802.11 header
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* FC | A1 | A2 | A3 | SC | [A4] | [QC] */
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@@ -460,7 +457,7 @@ static int ccmp_encrypt_skb(struct ieee8
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@@ -406,7 +403,7 @@ static int ccmp_encrypt_skb(struct ieee8
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u8 *pos;
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u8 pn[6];
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u64 pn64;
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- u8 aad[CCM_AAD_LEN];
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+ u8 aad[2 * AES_BLOCK_SIZE];
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u8 b_0[AES_BLOCK_SIZE];
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if (info->control.hw_key &&
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@@ -461,9 +458,11 @@ static int ccmp_encrypt_skb(struct ieee8
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return 0;
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pos += IEEE80211_CCMP_HDR_LEN;
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- ccmp_special_blocks(skb, pn, b_0, aad);
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- return ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, b_0, aad, pos, len,
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- skb_put(skb, mic_len), mic_len);
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+ ccmp_special_blocks(skb, pn, b_0, aad, len);
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ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, b_0, aad, pos, len,
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skb_put(skb, mic_len), mic_len);
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+ ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, b_0, aad, pos, len,
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+ skb_put(skb, mic_len), mic_len);
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+
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+ return 0;
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}
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@@ -537,7 +534,7 @@ ieee80211_crypto_ccmp_decrypt(struct iee
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@@ -536,7 +535,7 @@ ieee80211_crypto_ccmp_decrypt(struct iee
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u8 aad[2 * AES_BLOCK_SIZE];
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u8 b_0[AES_BLOCK_SIZE];
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/* hardware didn't decrypt/verify MIC */
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@@ -374,3 +336,113 @@
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if (ieee80211_aes_ccm_decrypt(
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key->u.ccmp.tfm, b_0, aad,
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@@ -638,7 +637,7 @@ static int gcmp_encrypt_skb(struct ieee8
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u8 *pos;
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u8 pn[6];
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u64 pn64;
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- u8 aad[GCM_AAD_LEN];
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+ u8 aad[2 * AES_BLOCK_SIZE];
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u8 j_0[AES_BLOCK_SIZE];
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if (info->control.hw_key &&
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@@ -695,8 +694,10 @@ static int gcmp_encrypt_skb(struct ieee8
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pos += IEEE80211_GCMP_HDR_LEN;
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gcmp_special_blocks(skb, pn, j_0, aad);
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- return ieee80211_aes_gcm_encrypt(key->u.gcmp.tfm, j_0, aad, pos, len,
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- skb_put(skb, IEEE80211_GCMP_MIC_LEN));
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+ ieee80211_aes_gcm_encrypt(key->u.gcmp.tfm, j_0, aad, pos, len,
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+ skb_put(skb, IEEE80211_GCMP_MIC_LEN));
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+
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+ return 0;
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}
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ieee80211_tx_result
|
||||
@@ -1120,9 +1121,9 @@ ieee80211_crypto_aes_gmac_encrypt(struct
|
||||
struct ieee80211_key *key = tx->key;
|
||||
struct ieee80211_mmie_16 *mmie;
|
||||
struct ieee80211_hdr *hdr;
|
||||
- u8 aad[GMAC_AAD_LEN];
|
||||
+ u8 aad[20];
|
||||
u64 pn64;
|
||||
- u8 nonce[GMAC_NONCE_LEN];
|
||||
+ u8 nonce[12];
|
||||
|
||||
if (WARN_ON(skb_queue_len(&tx->skbs) != 1))
|
||||
return TX_DROP;
|
||||
@@ -1168,7 +1169,7 @@ ieee80211_crypto_aes_gmac_decrypt(struct
|
||||
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
|
||||
struct ieee80211_key *key = rx->key;
|
||||
struct ieee80211_mmie_16 *mmie;
|
||||
- u8 aad[GMAC_AAD_LEN], mic[GMAC_MIC_LEN], ipn[6], nonce[GMAC_NONCE_LEN];
|
||||
+ 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))
|
||||
--- a/net/mac80211/aes_ccm.h
|
||||
+++ b/net/mac80211/aes_ccm.h
|
||||
@@ -12,17 +12,15 @@
|
||||
|
||||
#include <linux/crypto.h>
|
||||
|
||||
-#define CCM_AAD_LEN 32
|
||||
-
|
||||
-struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[],
|
||||
- size_t key_len,
|
||||
- size_t mic_len);
|
||||
-int 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,
|
||||
+struct crypto_cipher *ieee80211_aes_key_setup_encrypt(const u8 key[],
|
||||
+ size_t key_len,
|
||||
+ size_t mic_len);
|
||||
+void ieee80211_aes_ccm_encrypt(struct crypto_cipher *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 *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);
|
||||
+void ieee80211_aes_key_free(struct crypto_cipher *tfm);
|
||||
|
||||
#endif /* AES_CCM_H */
|
||||
--- a/net/mac80211/aes_gcm.h
|
||||
+++ b/net/mac80211/aes_gcm.h
|
||||
@@ -11,14 +11,28 @@
|
||||
|
||||
#include <linux/crypto.h>
|
||||
|
||||
-#define GCM_AAD_LEN 32
|
||||
+static inline 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_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);
|
||||
+static inline int
|
||||
+ieee80211_aes_gcm_decrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad,
|
||||
+ u8 *data, size_t data_len, u8 *mic)
|
||||
+{
|
||||
+ return -EOPNOTSUPP;
|
||||
+}
|
||||
+
|
||||
+static inline struct crypto_aead *
|
||||
+ieee80211_aes_gcm_key_setup_encrypt(const u8 key[], size_t key_len)
|
||||
+{
|
||||
+ return NULL;
|
||||
+}
|
||||
+
|
||||
+static inline void
|
||||
+ieee80211_aes_gcm_key_free(struct crypto_aead *tfm)
|
||||
+{
|
||||
+}
|
||||
|
||||
#endif /* AES_GCM_H */
|
||||
|
||||
Reference in New Issue
Block a user