net/ovpn/crypto_aead.c

153 	const unsigned int tag_size = crypto_aead_authsize(ks->decrypt);
205 	/* build scatterlist to decrypt packet payload */
209 			   "decrypt: cannot map skb to sg: %d\n", ret);
228 	req = aead_request_alloc(ks->decrypt, GFP_ATOMIC);
235 	aead_request_set_tfm(req, ks->decrypt);
241 	/* decrypt it */
303 	crypto_free_aead(ks->decrypt);
327 	    kc->decrypt.nonce_tail_size != OVPN_NONCE_TAIL_SIZE)
336 	ks->decrypt = NULL;
349 	ks->decrypt = ovpn_aead_init("decrypt", alg_name,
350 				     kc->decrypt.cipher_key,
351 				     kc->decrypt.cipher_key_size);
352 	if (IS_ERR(ks->decrypt)) {
353 		ret = PTR_ERR(ks->decrypt);
354 		ks->decrypt = NULL;
360 	memcpy(ks->nonce_tail_recv, kc->decrypt.nonce_tail,