linux-master/crypto/ccm.c

172 	struct crypto_ccm_req_priv_ctx *pctx = crypto_ccm_reqctx(req);
175 	struct ahash_request *ahreq = &pctx->ahreq;
178 	u8 *odata = pctx->odata;
179 	u8 *idata = pctx->idata;
201 	ahash_request_set_callback(ahreq, pctx->flags, NULL, NULL);
232 	struct crypto_ccm_req_priv_ctx *pctx = crypto_ccm_reqctx(req);
233 	u8 *odata = pctx->odata;
253 	struct crypto_ccm_req_priv_ctx *pctx = crypto_ccm_reqctx(req);
262 	pctx->flags = aead_request_flags(req);
269 	sg_init_table(pctx->src, 3);
270 	sg_set_buf(pctx->src, tag, 16);
271 	sg = scatterwalk_ffwd(pctx->src + 1, req->src, req->assoclen);
272 	if (sg != pctx->src + 1)
273 		sg_chain(pctx->src, 2, sg);
276 		sg_init_table(pctx->dst, 3);
277 		sg_set_buf(pctx->dst, tag, 16);
278 		sg = scatterwalk_ffwd(pctx->dst + 1, req->dst, req->assoclen);
279 		if (sg != pctx->dst + 1)
280 			sg_chain(pctx->dst, 2, sg);
290 	struct crypto_ccm_req_priv_ctx *pctx = crypto_ccm_reqctx(req);
291 	struct skcipher_request *skreq = &pctx->skreq;
294 	u8 *odata = pctx->odata;
302 	err = crypto_ccm_auth(req, sg_next(pctx->src), cryptlen);
306 	dst = pctx->src;
308 		dst = pctx->dst;
311 	skcipher_request_set_callback(skreq, pctx->flags,
313 	skcipher_request_set_crypt(skreq, pctx->src, dst, cryptlen + 16, iv);
327 	struct crypto_ccm_req_priv_ctx *pctx = crypto_ccm_reqctx(req);
333 	pctx->flags = 0;
335 	dst = sg_next(req->src == req->dst ? pctx->src : pctx->dst);
339 		if (!err && crypto_memneq(pctx->auth_tag, pctx->odata, authsize))
349 	struct crypto_ccm_req_priv_ctx *pctx = crypto_ccm_reqctx(req);
350 	struct skcipher_request *skreq = &pctx->skreq;
354 	u8 *authtag = pctx->auth_tag;
355 	u8 *odata = pctx->odata;
356 	u8 *iv = pctx->idata;
365 	scatterwalk_map_and_copy(authtag, sg_next(pctx->src), cryptlen,
368 	dst = pctx->src;
370 		dst = pctx->dst;
375 	skcipher_request_set_callback(skreq, pctx->flags,
377 	skcipher_request_set_crypt(skreq, pctx->src, dst, cryptlen + 16, iv);