63 static inline u8 *crypto_cts_reqctx_space(struct skcipher_request *req)  in crypto_cts_reqctx_space()  argument
65 	struct crypto_cts_reqctx *rctx = skcipher_request_ctx(req);  in crypto_cts_reqctx_space()
66 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);  in crypto_cts_reqctx_space()
92 	struct skcipher_request *req = areq->data;  in cts_cbc_crypt_done()  local
97 	skcipher_request_complete(req, err);  in cts_cbc_crypt_done()
100 static int cts_cbc_encrypt(struct skcipher_request *req)  in cts_cbc_encrypt()  argument
102 	struct crypto_cts_reqctx *rctx = skcipher_request_ctx(req);  in cts_cbc_encrypt()
103 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);  in cts_cbc_encrypt()
112 	lastn = req->cryptlen - offset;  in cts_cbc_encrypt()
114 	sg = scatterwalk_ffwd(rctx->sg, req->dst, offset - bsize);  in cts_cbc_encrypt()
118 	scatterwalk_map_and_copy(d, req->src, offset, lastn, 0);  in cts_cbc_encrypt()
123 	skcipher_request_set_callback(subreq, req->base.flags &  in cts_cbc_encrypt()
125 				      cts_cbc_crypt_done, req);  in cts_cbc_encrypt()
126 	skcipher_request_set_crypt(subreq, sg, sg, bsize, req->iv);  in cts_cbc_encrypt()
132 	struct skcipher_request *req = areq->data;  in crypto_cts_encrypt_done()  local
137 	err = cts_cbc_encrypt(req);  in crypto_cts_encrypt_done()
139 	    (err == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))  in crypto_cts_encrypt_done()
143 	skcipher_request_complete(req, err);  in crypto_cts_encrypt_done()
146 static int crypto_cts_encrypt(struct skcipher_request *req)  in crypto_cts_encrypt()  argument
148 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);  in crypto_cts_encrypt()
149 	struct crypto_cts_reqctx *rctx = skcipher_request_ctx(req);  in crypto_cts_encrypt()
153 	unsigned int nbytes = req->cryptlen;  in crypto_cts_encrypt()
160 		skcipher_request_set_callback(subreq, req->base.flags,  in crypto_cts_encrypt()
161 					      req->base.complete,  in crypto_cts_encrypt()
162 					      req->base.data);  in crypto_cts_encrypt()
163 		skcipher_request_set_crypt(subreq, req->src, req->dst, nbytes,  in crypto_cts_encrypt()
164 					   req->iv);  in crypto_cts_encrypt()
171 	skcipher_request_set_callback(subreq, req->base.flags,  in crypto_cts_encrypt()
172 				      crypto_cts_encrypt_done, req);  in crypto_cts_encrypt()
173 	skcipher_request_set_crypt(subreq, req->src, req->dst,  in crypto_cts_encrypt()
174 				   offset, req->iv);  in crypto_cts_encrypt()
177 	       cts_cbc_encrypt(req);  in crypto_cts_encrypt()
180 static int cts_cbc_decrypt(struct skcipher_request *req)  in cts_cbc_decrypt()  argument
182 	struct crypto_cts_reqctx *rctx = skcipher_request_ctx(req);  in cts_cbc_decrypt()
183 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);  in cts_cbc_decrypt()
193 	lastn = req->cryptlen - offset;  in cts_cbc_decrypt()
195 	sg = scatterwalk_ffwd(rctx->sg, req->dst, offset - bsize);  in cts_cbc_decrypt()
199 	space = crypto_cts_reqctx_space(req);  in cts_cbc_decrypt()
203 	scatterwalk_map_and_copy(d, req->src, offset, lastn, 0);  in cts_cbc_decrypt()
215 	skcipher_request_set_callback(subreq, req->base.flags &  in cts_cbc_decrypt()
217 				      cts_cbc_crypt_done, req);  in cts_cbc_decrypt()
225 	struct skcipher_request *req = areq->data;  in crypto_cts_decrypt_done()  local
230 	err = cts_cbc_decrypt(req);  in crypto_cts_decrypt_done()
232 	    (err == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))  in crypto_cts_decrypt_done()
236 	skcipher_request_complete(req, err);  in crypto_cts_decrypt_done()
239 static int crypto_cts_decrypt(struct skcipher_request *req)  in crypto_cts_decrypt()  argument
241 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);  in crypto_cts_decrypt()
242 	struct crypto_cts_reqctx *rctx = skcipher_request_ctx(req);  in crypto_cts_decrypt()
246 	unsigned int nbytes = req->cryptlen;  in crypto_cts_decrypt()
254 		skcipher_request_set_callback(subreq, req->base.flags,  in crypto_cts_decrypt()
255 					      req->base.complete,  in crypto_cts_decrypt()
256 					      req->base.data);  in crypto_cts_decrypt()
257 		skcipher_request_set_crypt(subreq, req->src, req->dst, nbytes,  in crypto_cts_decrypt()
258 					   req->iv);  in crypto_cts_decrypt()
262 	skcipher_request_set_callback(subreq, req->base.flags,  in crypto_cts_decrypt()
263 				      crypto_cts_decrypt_done, req);  in crypto_cts_decrypt()
265 	space = crypto_cts_reqctx_space(req);  in crypto_cts_decrypt()
271 		memcpy(space, req->iv, bsize);  in crypto_cts_decrypt()
273 		scatterwalk_map_and_copy(space, req->src, offset - 2 * bsize,  in crypto_cts_decrypt()
276 	skcipher_request_set_crypt(subreq, req->src, req->dst,  in crypto_cts_decrypt()
277 				   offset, req->iv);  in crypto_cts_decrypt()
280 	       cts_cbc_decrypt(req);  in crypto_cts_decrypt()