diff options
Diffstat (limited to 'net/mac802154')
| -rw-r--r-- | net/mac802154/llsec.c | 44 |
1 files changed, 16 insertions, 28 deletions
diff --git a/net/mac802154/llsec.c b/net/mac802154/llsec.c index 5b2be12832e6..985e9394e2af 100644 --- a/net/mac802154/llsec.c +++ b/net/mac802154/llsec.c @@ -17,8 +17,9 @@ #include <linux/err.h> #include <linux/bug.h> #include <linux/completion.h> +#include <linux/crypto.h> #include <linux/ieee802154.h> -#include <crypto/algapi.h> +#include <crypto/aead.h> #include "ieee802154_i.h" #include "llsec.h" @@ -649,7 +650,7 @@ llsec_do_encrypt_auth(struct sk_buff *skb, const struct mac802154_llsec *sec, u8 iv[16]; unsigned char *data; int authlen, assoclen, datalen, rc; - struct scatterlist src, assoc[2], dst[2]; + struct scatterlist sg; struct aead_request *req; authlen = ieee802154_sechdr_authtag_len(&hdr->sec); @@ -659,30 +660,23 @@ llsec_do_encrypt_auth(struct sk_buff *skb, const struct mac802154_llsec *sec, if (!req) return -ENOMEM; - sg_init_table(assoc, 2); - sg_set_buf(&assoc[0], skb_mac_header(skb), skb->mac_len); assoclen = skb->mac_len; data = skb_mac_header(skb) + skb->mac_len; datalen = skb_tail_pointer(skb) - data; - if (hdr->sec.level & IEEE802154_SCF_SECLEVEL_ENC) { - sg_set_buf(&assoc[1], data, 0); - } else { - sg_set_buf(&assoc[1], data, datalen); + skb_put(skb, authlen); + + sg_init_one(&sg, skb_mac_header(skb), assoclen + datalen + authlen); + + if (!(hdr->sec.level & IEEE802154_SCF_SECLEVEL_ENC)) { assoclen += datalen; datalen = 0; } - sg_init_one(&src, data, datalen); - - sg_init_table(dst, 2); - sg_set_buf(&dst[0], data, datalen); - sg_set_buf(&dst[1], skb_put(skb, authlen), authlen); - aead_request_set_callback(req, 0, NULL, NULL); - aead_request_set_assoc(req, assoc, assoclen); - aead_request_set_crypt(req, &src, dst, datalen, iv); + aead_request_set_crypt(req, &sg, &sg, datalen, iv); + aead_request_set_ad(req, assoclen); rc = crypto_aead_encrypt(req); @@ -858,7 +852,7 @@ llsec_do_decrypt_auth(struct sk_buff *skb, const struct mac802154_llsec *sec, u8 iv[16]; unsigned char *data; int authlen, datalen, assoclen, rc; - struct scatterlist src, assoc[2]; + struct scatterlist sg; struct aead_request *req; authlen = ieee802154_sechdr_authtag_len(&hdr->sec); @@ -868,27 +862,21 @@ llsec_do_decrypt_auth(struct sk_buff *skb, const struct mac802154_llsec *sec, if (!req) return -ENOMEM; - sg_init_table(assoc, 2); - sg_set_buf(&assoc[0], skb_mac_header(skb), skb->mac_len); assoclen = skb->mac_len; data = skb_mac_header(skb) + skb->mac_len; datalen = skb_tail_pointer(skb) - data; - if (hdr->sec.level & IEEE802154_SCF_SECLEVEL_ENC) { - sg_set_buf(&assoc[1], data, 0); - } else { - sg_set_buf(&assoc[1], data, datalen - authlen); + sg_init_one(&sg, skb_mac_header(skb), assoclen + datalen); + + if (!(hdr->sec.level & IEEE802154_SCF_SECLEVEL_ENC)) { assoclen += datalen - authlen; - data += datalen - authlen; datalen = authlen; } - sg_init_one(&src, data, datalen); - aead_request_set_callback(req, 0, NULL, NULL); - aead_request_set_assoc(req, assoc, assoclen); - aead_request_set_crypt(req, &src, &src, datalen, iv); + aead_request_set_crypt(req, &sg, &sg, datalen, iv); + aead_request_set_ad(req, assoclen); rc = crypto_aead_decrypt(req); |