linux/crypto/skcipher.c

39 		       struct skcipher_request *__restrict req, bool atomic)
41 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
44 	might_sleep_if(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP);
48 	walk->total = req->cryptlen;
50 	walk->iv = req->iv;
51 	walk->oiv = req->iv;
52 	if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP))
58 	scatterwalk_start(&walk->in, req->src);
59 	scatterwalk_start(&walk->out, req->dst);
75 				     struct aead_request *__restrict req,
78 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
81 	walk->iv = req->iv;
82 	walk->oiv = req->iv;
83 	if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP))
89 	scatterwalk_start_at_pos(&walk->in, req->src, req->assoclen);
90 	scatterwalk_start_at_pos(&walk->out, req->dst, req->assoclen);
101 			       struct aead_request *__restrict req,
104 	walk->total = req->cryptlen;
106 	return skcipher_walk_aead_common(walk, req, atomic);
111 			       struct aead_request *__restrict req,
114 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
116 	walk->total = req->cryptlen - crypto_aead_authsize(tfm);
118 	return skcipher_walk_aead_common(walk, req, atomic);
186 int crypto_skcipher_encrypt(struct skcipher_request *req)
188 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
194 		return crypto_lskcipher_encrypt_sg(req);
195 	return alg->encrypt(req);
199 int crypto_skcipher_decrypt(struct skcipher_request *req)
201 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
207 		return crypto_lskcipher_decrypt_sg(req);
208 	return alg->decrypt(req);
212 static int crypto_lskcipher_export(struct skcipher_request *req, void *out)
214 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
215 	u8 *ivs = skcipher_request_ctx(req);
225 static int crypto_lskcipher_import(struct skcipher_request *req, const void *in)
227 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
228 	u8 *ivs = skcipher_request_ctx(req);
238 static int skcipher_noexport(struct skcipher_request *req, void *out)
243 static int skcipher_noimport(struct skcipher_request *req, const void *in)
248 int crypto_skcipher_export(struct skcipher_request *req, void *out)
250 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
254 		return crypto_lskcipher_export(req, out);
255 	return alg->export(req, out);
259 int crypto_skcipher_import(struct skcipher_request *req, const void *in)
261 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
265 		return crypto_lskcipher_import(req, in);
266 	return alg->import(req, in);