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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2015-05-27 16:03:50 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-05-28 11:23:20 +0800 |
| commit | 957e0fe6292372460bdace9c2a67a857379ad1db (patch) | |
| tree | d642a0afc2e2d7a117e6413f70c4079302d6ac9f /net/mac80211/aes_ccm.c | |
| parent | 25528fdae4abb763c446b2e5081f80ba5a4b6f31 (diff) | |
| download | linux-957e0fe6292372460bdace9c2a67a857379ad1db.tar.bz2 | |
mac80211: Switch to new AEAD interface
This patch makes use of the new AEAD interface which uses a single
SG list instead of separate lists for the AD and plain text.
Tested-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'net/mac80211/aes_ccm.c')
| -rw-r--r-- | net/mac80211/aes_ccm.c | 30 |
1 files changed, 14 insertions, 16 deletions
diff --git a/net/mac80211/aes_ccm.c b/net/mac80211/aes_ccm.c index 70d53dab6508..7663c28ba353 100644 --- a/net/mac80211/aes_ccm.c +++ b/net/mac80211/aes_ccm.c @@ -22,7 +22,7 @@ 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) { - struct scatterlist assoc, pt, ct[2]; + struct scatterlist sg[3]; char aead_req_data[sizeof(struct aead_request) + crypto_aead_reqsize(tfm)] @@ -31,15 +31,14 @@ void ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, 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); + sg_init_table(sg, 3); + sg_set_buf(&sg[0], &aad[2], be16_to_cpup((__be16 *)aad)); + sg_set_buf(&sg[1], data, data_len); + sg_set_buf(&sg[2], 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); + aead_request_set_crypt(aead_req, sg, sg, data_len, b_0); + aead_request_set_ad(aead_req, sg[0].length); crypto_aead_encrypt(aead_req); } @@ -48,7 +47,7 @@ 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) { - struct scatterlist assoc, pt, ct[2]; + struct scatterlist sg[3]; char aead_req_data[sizeof(struct aead_request) + crypto_aead_reqsize(tfm)] __aligned(__alignof__(struct aead_request)); @@ -59,15 +58,14 @@ int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, 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); + sg_init_table(sg, 3); + sg_set_buf(&sg[0], &aad[2], be16_to_cpup((__be16 *)aad)); + sg_set_buf(&sg[1], data, data_len); + sg_set_buf(&sg[2], 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); + aead_request_set_crypt(aead_req, sg, sg, data_len + mic_len, b_0); + aead_request_set_ad(aead_req, sg[0].length); return crypto_aead_decrypt(aead_req); } |