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Diffstat (limited to 'net/mac802154/llsec.c')
-rw-r--r--net/mac802154/llsec.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/net/mac802154/llsec.c b/net/mac802154/llsec.c
index 1e1c9b20bab7..2fb703d70803 100644
--- a/net/mac802154/llsec.c
+++ b/net/mac802154/llsec.c
@@ -623,13 +623,18 @@ llsec_do_encrypt_unauth(struct sk_buff *skb, const struct mac802154_llsec *sec,
u8 iv[16];
struct scatterlist src;
SKCIPHER_REQUEST_ON_STACK(req, key->tfm0);
- int err;
+ int err, datalen;
+ unsigned char *data;
llsec_geniv(iv, sec->params.hwaddr, &hdr->sec);
- sg_init_one(&src, skb->data, skb->len);
+ /* Compute data payload offset and data length */
+ data = skb_mac_header(skb) + skb->mac_len;
+ datalen = skb_tail_pointer(skb) - data;
+ sg_init_one(&src, data, datalen);
+
skcipher_request_set_tfm(req, key->tfm0);
skcipher_request_set_callback(req, 0, NULL, NULL);
- skcipher_request_set_crypt(req, &src, &src, skb->len, iv);
+ skcipher_request_set_crypt(req, &src, &src, datalen, iv);
err = crypto_skcipher_encrypt(req);
skcipher_request_zero(req);
return err;
@@ -713,7 +718,8 @@ int mac802154_llsec_encrypt(struct mac802154_llsec *sec, struct sk_buff *skb)
if (hlen < 0 || hdr.fc.type != IEEE802154_FC_TYPE_DATA)
return -EINVAL;
- if (!hdr.fc.security_enabled || hdr.sec.level == 0) {
+ if (!hdr.fc.security_enabled ||
+ (hdr.sec.level == IEEE802154_SCF_SECLEVEL_NONE)) {
skb_push(skb, hlen);
return 0;
}