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Diffstat (limited to 'net/mac80211/aes_ccm.c')
-rw-r--r--net/mac80211/aes_ccm.c21
1 files changed, 12 insertions, 9 deletions
diff --git a/net/mac80211/aes_ccm.c b/net/mac80211/aes_ccm.c
index 09d9caaec591..7869bb40acaa 100644
--- a/net/mac80211/aes_ccm.c
+++ b/net/mac80211/aes_ccm.c
@@ -20,7 +20,8 @@
#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)
+ u8 *data, size_t data_len, u8 *mic,
+ size_t mic_len)
{
struct scatterlist assoc, pt, ct[2];
@@ -35,7 +36,7 @@ void ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
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);
+ sg_set_buf(&ct[1], mic, mic_len);
aead_request_set_tfm(aead_req, tfm);
aead_request_set_assoc(aead_req, &assoc, assoc.length);
@@ -45,7 +46,8 @@ void ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
}
int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
- u8 *data, size_t data_len, u8 *mic)
+ u8 *data, size_t data_len, u8 *mic,
+ size_t mic_len)
{
struct scatterlist assoc, pt, ct[2];
char aead_req_data[sizeof(struct aead_request) +
@@ -62,17 +64,18 @@ int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
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);
+ 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 + IEEE80211_CCMP_MIC_LEN, b_0);
+ aead_request_set_crypt(aead_req, ct, &pt, data_len + mic_len, b_0);
return crypto_aead_decrypt(aead_req);
}
-struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[])
+struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[],
+ size_t key_len,
+ size_t mic_len)
{
struct crypto_aead *tfm;
int err;
@@ -81,9 +84,9 @@ struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[])
if (IS_ERR(tfm))
return tfm;
- err = crypto_aead_setkey(tfm, key, WLAN_KEY_LEN_CCMP);
+ err = crypto_aead_setkey(tfm, key, key_len);
if (!err)
- err = crypto_aead_setauthsize(tfm, IEEE80211_CCMP_MIC_LEN);
+ err = crypto_aead_setauthsize(tfm, mic_len);
if (!err)
return tfm;