mac802154: 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. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Родитель
000ae7b269
Коммит
25528fdae4
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@ -650,7 +650,7 @@ llsec_do_encrypt_auth(struct sk_buff *skb, const struct mac802154_llsec *sec,
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u8 iv[16];
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unsigned char *data;
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int authlen, assoclen, datalen, rc;
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struct scatterlist src, assoc[2], dst[2];
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struct scatterlist sg;
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struct aead_request *req;
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authlen = ieee802154_sechdr_authtag_len(&hdr->sec);
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@ -660,30 +660,23 @@ llsec_do_encrypt_auth(struct sk_buff *skb, const struct mac802154_llsec *sec,
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if (!req)
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return -ENOMEM;
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sg_init_table(assoc, 2);
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sg_set_buf(&assoc[0], skb_mac_header(skb), skb->mac_len);
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assoclen = skb->mac_len;
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data = skb_mac_header(skb) + skb->mac_len;
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datalen = skb_tail_pointer(skb) - data;
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if (hdr->sec.level & IEEE802154_SCF_SECLEVEL_ENC) {
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sg_set_buf(&assoc[1], data, 0);
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} else {
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sg_set_buf(&assoc[1], data, datalen);
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skb_put(skb, authlen);
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sg_init_one(&sg, skb_mac_header(skb), assoclen + datalen + authlen);
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if (!(hdr->sec.level & IEEE802154_SCF_SECLEVEL_ENC)) {
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assoclen += datalen;
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datalen = 0;
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}
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sg_init_one(&src, data, datalen);
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sg_init_table(dst, 2);
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sg_set_buf(&dst[0], data, datalen);
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sg_set_buf(&dst[1], skb_put(skb, authlen), authlen);
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aead_request_set_callback(req, 0, NULL, NULL);
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aead_request_set_assoc(req, assoc, assoclen);
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aead_request_set_crypt(req, &src, dst, datalen, iv);
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aead_request_set_crypt(req, &sg, &sg, datalen, iv);
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aead_request_set_ad(req, assoclen);
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rc = crypto_aead_encrypt(req);
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@ -859,7 +852,7 @@ llsec_do_decrypt_auth(struct sk_buff *skb, const struct mac802154_llsec *sec,
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u8 iv[16];
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unsigned char *data;
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int authlen, datalen, assoclen, rc;
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struct scatterlist src, assoc[2];
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struct scatterlist sg;
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struct aead_request *req;
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authlen = ieee802154_sechdr_authtag_len(&hdr->sec);
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@ -869,27 +862,21 @@ llsec_do_decrypt_auth(struct sk_buff *skb, const struct mac802154_llsec *sec,
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if (!req)
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return -ENOMEM;
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sg_init_table(assoc, 2);
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sg_set_buf(&assoc[0], skb_mac_header(skb), skb->mac_len);
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assoclen = skb->mac_len;
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data = skb_mac_header(skb) + skb->mac_len;
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datalen = skb_tail_pointer(skb) - data;
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if (hdr->sec.level & IEEE802154_SCF_SECLEVEL_ENC) {
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sg_set_buf(&assoc[1], data, 0);
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} else {
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sg_set_buf(&assoc[1], data, datalen - authlen);
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sg_init_one(&sg, skb_mac_header(skb), assoclen + datalen);
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if (!(hdr->sec.level & IEEE802154_SCF_SECLEVEL_ENC)) {
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assoclen += datalen - authlen;
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data += datalen - authlen;
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datalen = authlen;
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}
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sg_init_one(&src, data, datalen);
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aead_request_set_callback(req, 0, NULL, NULL);
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aead_request_set_assoc(req, assoc, assoclen);
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aead_request_set_crypt(req, &src, &src, datalen, iv);
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aead_request_set_crypt(req, &sg, &sg, datalen, iv);
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aead_request_set_ad(req, assoclen);
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rc = crypto_aead_decrypt(req);
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