136 	struct skcipher_request *req = areq->data;  in essiv_skcipher_done()  local
138 	skcipher_request_complete(req, err);  in essiv_skcipher_done()
141 static int essiv_skcipher_crypt(struct skcipher_request *req, bool enc)  in essiv_skcipher_crypt()  argument
143 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);  in essiv_skcipher_crypt()
145 	struct skcipher_request *subreq = skcipher_request_ctx(req);  in essiv_skcipher_crypt()
147 	crypto_cipher_encrypt_one(tctx->essiv_cipher, req->iv, req->iv);  in essiv_skcipher_crypt()
150 	skcipher_request_set_crypt(subreq, req->src, req->dst, req->cryptlen,  in essiv_skcipher_crypt()
151 				   req->iv);  in essiv_skcipher_crypt()
152 	skcipher_request_set_callback(subreq, skcipher_request_flags(req),  in essiv_skcipher_crypt()
153 				      essiv_skcipher_done, req);  in essiv_skcipher_crypt()
159 static int essiv_skcipher_encrypt(struct skcipher_request *req)  in essiv_skcipher_encrypt()  argument
161 	return essiv_skcipher_crypt(req, true);  in essiv_skcipher_encrypt()
164 static int essiv_skcipher_decrypt(struct skcipher_request *req)  in essiv_skcipher_decrypt()  argument
166 	return essiv_skcipher_crypt(req, false);  in essiv_skcipher_decrypt()
171 	struct aead_request *req = areq->data;  in essiv_aead_done()  local
172 	struct essiv_aead_request_ctx *rctx = aead_request_ctx(req);  in essiv_aead_done()
180 	aead_request_complete(req, err);  in essiv_aead_done()
183 static int essiv_aead_crypt(struct aead_request *req, bool enc)  in essiv_aead_crypt()  argument
185 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);  in essiv_aead_crypt()
187 	struct essiv_aead_request_ctx *rctx = aead_request_ctx(req);  in essiv_aead_crypt()
189 	struct scatterlist *src = req->src;  in essiv_aead_crypt()
192 	crypto_cipher_encrypt_one(tctx->essiv_cipher, req->iv, req->iv);  in essiv_aead_crypt()
200 	if (req->src == req->dst || !enc) {  in essiv_aead_crypt()
201 		scatterwalk_map_and_copy(req->iv, req->dst,  in essiv_aead_crypt()
202 					 req->assoclen - crypto_aead_ivsize(tfm),  in essiv_aead_crypt()
205 		u8 *iv = (u8 *)aead_request_ctx(req) + tctx->ivoffset;  in essiv_aead_crypt()
207 		int ssize = req->assoclen - ivsize;  in essiv_aead_crypt()
214 		nents = sg_nents_for_len(req->src, ssize);  in essiv_aead_crypt()
218 		memcpy(iv, req->iv, ivsize);  in essiv_aead_crypt()
230 			scatterwalk_map_and_copy(rctx->assoc, req->src, 0,  in essiv_aead_crypt()
234 			sg_set_page(rctx->sg, sg_page(req->src), ssize,  in essiv_aead_crypt()
235 				    req->src->offset);  in essiv_aead_crypt()
239 		sg = scatterwalk_ffwd(rctx->sg + 2, req->src, req->assoclen);  in essiv_aead_crypt()
247 	aead_request_set_ad(subreq, req->assoclen);  in essiv_aead_crypt()
248 	aead_request_set_callback(subreq, aead_request_flags(req),  in essiv_aead_crypt()
249 				  essiv_aead_done, req);  in essiv_aead_crypt()
250 	aead_request_set_crypt(subreq, src, req->dst, req->cryptlen, req->iv);  in essiv_aead_crypt()
260 static int essiv_aead_encrypt(struct aead_request *req)  in essiv_aead_encrypt()  argument
262 	return essiv_aead_crypt(req, true);  in essiv_aead_encrypt()
265 static int essiv_aead_decrypt(struct aead_request *req)  in essiv_aead_decrypt()  argument
267 	return essiv_aead_crypt(req, false);  in essiv_aead_decrypt()