diff options
Diffstat (limited to 'package/mac80211/patches/100-revert_aes_ccm_port.patch')
| -rw-r--r-- | package/mac80211/patches/100-revert_aes_ccm_port.patch | 138 |
1 files changed, 69 insertions, 69 deletions
diff --git a/package/mac80211/patches/100-revert_aes_ccm_port.patch b/package/mac80211/patches/100-revert_aes_ccm_port.patch index 4654bc8ea4..640d34e51f 100644 --- a/package/mac80211/patches/100-revert_aes_ccm_port.patch +++ b/package/mac80211/patches/100-revert_aes_ccm_port.patch @@ -4,7 +4,7 @@ depends on CRYPTO depends on CRYPTO_ARC4 depends on CRYPTO_AES -- depends on CRYPTO_CCM +- select BACKPORT_CRYPTO_CCM depends on CRC32 select BACKPORT_AVERAGE ---help--- @@ -19,35 +19,17 @@ * 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. -@@ -19,75 +17,134 @@ +@@ -19,76 +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) +static void aes_ccm_prepare(struct crypto_cipher *tfm, u8 *scratch, u8 *a) - { -- struct scatterlist assoc, pt, ct[2]; -- struct { -- struct aead_request req; -- u8 priv[crypto_aead_reqsize(tfm)]; -- } aead_req; -- -- memset(&aead_req, 0, sizeof(aead_req)); -- -- 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_CCMP_MIC_LEN); -- -- aead_request_set_tfm(&aead_req.req, tfm); -- aead_request_set_assoc(&aead_req.req, &assoc, assoc.length); -- aead_request_set_crypt(&aead_req.req, &pt, ct, data_len, b_0); ++{ + int i; + u8 *b_0, *aad, *b, *s_0; - -- crypto_aead_encrypt(&aead_req.req); ++ + b_0 = scratch + 3 * AES_BLOCK_SIZE; + aad = scratch + 4 * AES_BLOCK_SIZE; + b = scratch; @@ -73,22 +55,23 @@ + b_0[14] = 0; + b_0[15] = 0; + crypto_cipher_encrypt_one(tfm, s_0, b_0); - } - --int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, -- u8 *data, size_t data_len, u8 *mic) ++} ++ + +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]; -- struct { -- struct aead_request req; -- u8 priv[crypto_aead_reqsize(tfm)]; -- } aead_req; ++ 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)); +- 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)); @@ -96,13 +79,9 @@ - sg_set_buf(&ct[0], data, data_len); - sg_set_buf(&ct[1], mic, IEEE80211_CCMP_MIC_LEN); - -- aead_request_set_tfm(&aead_req.req, tfm); -- aead_request_set_assoc(&aead_req.req, &assoc, assoc.length); -- aead_request_set_crypt(&aead_req.req, ct, &pt, -- data_len + IEEE80211_CCMP_MIC_LEN, b_0); -+ int i, j, last_len, num_blocks; -+ u8 *pos, *cpos, *b, *s_0, *e, *b_0; -+ +- 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; @@ -131,30 +110,38 @@ + *cpos++ = *pos++ ^ e[i]; + } -- return crypto_aead_decrypt(&aead_req.req); +- crypto_aead_encrypt(aead_req); + for (i = 0; i < IEEE80211_CCMP_MIC_LEN; i++) + mic[i] = b[i] ^ s_0[i]; } --struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[]) +-int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, +- u8 *data, size_t data_len, u8 *mic) + +int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch, + u8 *cdata, size_t data_len, u8 *mic, u8 *data) { -- struct crypto_aead *tfm; -- int err; +- 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_CCMP_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_CCMP_MIC_LEN, b_0); + int i, j, last_len, num_blocks; + u8 *pos, *cpos, *b, *s_0, *a, *b_0; - -- tfm = crypto_alloc_aead("ccm(aes)", 0, CRYPTO_ALG_ASYNC); -- if (IS_ERR(tfm)) -- return tfm; -- -- err = crypto_aead_setkey(tfm, key, WLAN_KEY_LEN_CCMP); -- if (!err) -- err = crypto_aead_setauthsize(tfm, IEEE80211_CCMP_MIC_LEN); -- if (!err) -- return tfm; ++ + b = scratch; + s_0 = scratch + AES_BLOCK_SIZE; + a = scratch + 2 * AES_BLOCK_SIZE; @@ -187,24 +174,37 @@ + return -1; + } -- crypto_free_aead(tfm); -- return ERR_PTR(err); +- return crypto_aead_decrypt(aead_req); + return 0; } --void ieee80211_aes_key_free(struct crypto_aead *tfm) +-struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[]) + +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, WLAN_KEY_LEN_CCMP); +- if (!err) +- err = crypto_aead_setauthsize(tfm, IEEE80211_CCMP_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) { @@ -246,13 +246,13 @@ struct { --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c -@@ -301,16 +301,22 @@ ieee80211_crypto_tkip_decrypt(struct iee +@@ -301,15 +301,22 @@ 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 *b_0, u8 *aad) +static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *scratch, - int encrypted) ++ int encrypted) { __le16 mask_fc; int a4_included, mgmt; @@ -271,7 +271,7 @@ /* * Mask FC: zero subtype b4 b5 b6 (if not mgmt) * Retry, PwrMgt, MoreData; set Protected -@@ -332,21 +338,20 @@ static void ccmp_special_blocks(struct s +@@ -331,21 +338,20 @@ static void ccmp_special_blocks(struct s else qos_tid = 0; @@ -300,7 +300,7 @@ /* AAD (extra authenticate-only data) / masked 802.11 header * FC | A1 | A2 | A3 | SC | [A4] | [QC] */ -@@ -402,8 +407,7 @@ static int ccmp_encrypt_skb(struct ieee8 +@@ -401,8 +407,7 @@ static int ccmp_encrypt_skb(struct ieee8 u8 *pos; u8 pn[6]; u64 pn64; @@ -310,11 +310,11 @@ if (info->control.hw_key && !(info->control.hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV) && -@@ -456,9 +460,9 @@ static int ccmp_encrypt_skb(struct ieee8 +@@ -458,9 +463,9 @@ static int ccmp_encrypt_skb(struct ieee8 return 0; pos += IEEE80211_CCMP_HDR_LEN; -- ccmp_special_blocks(skb, pn, b_0, aad, 0); +- ccmp_special_blocks(skb, pn, b_0, aad); - ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, b_0, aad, pos, len, - skb_put(skb, IEEE80211_CCMP_MIC_LEN)); + ccmp_special_blocks(skb, pn, scratch, 0); @@ -323,7 +323,7 @@ return 0; } -@@ -521,16 +525,16 @@ ieee80211_crypto_ccmp_decrypt(struct iee +@@ -523,16 +528,16 @@ ieee80211_crypto_ccmp_decrypt(struct iee } if (!(status->flag & RX_FLAG_DECRYPTED)) { @@ -331,7 +331,7 @@ - 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, 1); +- ccmp_special_blocks(skb, pn, b_0, aad); + ccmp_special_blocks(skb, pn, scratch, 1); if (ieee80211_aes_ccm_decrypt( |