crypto: talitos - Convert to new AEAD interface
This patch converts talitos to the new AEAD interface. IV generation has been removed since it's equivalent to a software implementation. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
parent
e19ab1211d
commit
aeb4c132f3
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@ -799,7 +799,6 @@ struct talitos_ctx {
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unsigned int keylen;
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unsigned int enckeylen;
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unsigned int authkeylen;
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unsigned int authsize;
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};
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#define HASH_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE
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@ -819,16 +818,6 @@ struct talitos_ahash_req_ctx {
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struct scatterlist *psrc;
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};
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static int aead_setauthsize(struct crypto_aead *authenc,
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unsigned int authsize)
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{
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struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
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ctx->authsize = authsize;
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return 0;
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}
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static int aead_setkey(struct crypto_aead *authenc,
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const u8 *key, unsigned int keylen)
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{
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@ -857,12 +846,11 @@ badkey:
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/*
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* talitos_edesc - s/w-extended descriptor
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* @assoc_nents: number of segments in associated data scatterlist
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* @src_nents: number of segments in input scatterlist
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* @dst_nents: number of segments in output scatterlist
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* @assoc_chained: whether assoc is chained or not
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* @src_chained: whether src is chained or not
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* @dst_chained: whether dst is chained or not
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* @icv_ool: whether ICV is out-of-line
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* @iv_dma: dma address of iv for checking continuity and link table
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* @dma_len: length of dma mapped link_tbl space
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* @dma_link_tbl: bus physical address of link_tbl/buf
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@ -875,12 +863,11 @@ badkey:
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* of link_tbl data
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*/
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struct talitos_edesc {
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int assoc_nents;
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int src_nents;
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int dst_nents;
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bool assoc_chained;
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bool src_chained;
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bool dst_chained;
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bool icv_ool;
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dma_addr_t iv_dma;
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int dma_len;
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dma_addr_t dma_link_tbl;
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@ -952,14 +939,6 @@ static void ipsec_esp_unmap(struct device *dev,
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unmap_single_talitos_ptr(dev, &edesc->desc.ptr[2], DMA_TO_DEVICE);
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unmap_single_talitos_ptr(dev, &edesc->desc.ptr[0], DMA_TO_DEVICE);
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if (edesc->assoc_chained)
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talitos_unmap_sg_chain(dev, areq->assoc, DMA_TO_DEVICE);
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else if (areq->assoclen)
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/* assoc_nents counts also for IV in non-contiguous cases */
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dma_unmap_sg(dev, areq->assoc,
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edesc->assoc_nents ? edesc->assoc_nents - 1 : 1,
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DMA_TO_DEVICE);
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talitos_sg_unmap(dev, edesc, areq->src, areq->dst);
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if (edesc->dma_len)
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@ -976,7 +955,7 @@ static void ipsec_esp_encrypt_done(struct device *dev,
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{
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struct aead_request *areq = context;
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struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
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struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
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unsigned int authsize = crypto_aead_authsize(authenc);
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struct talitos_edesc *edesc;
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struct scatterlist *sg;
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void *icvdata;
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@ -986,13 +965,12 @@ static void ipsec_esp_encrypt_done(struct device *dev,
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ipsec_esp_unmap(dev, edesc, areq);
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/* copy the generated ICV to dst */
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if (edesc->dst_nents) {
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if (edesc->icv_ool) {
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icvdata = &edesc->link_tbl[edesc->src_nents +
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edesc->dst_nents + 2 +
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edesc->assoc_nents];
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edesc->dst_nents + 2];
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sg = sg_last(areq->dst, edesc->dst_nents);
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memcpy((char *)sg_virt(sg) + sg->length - ctx->authsize,
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icvdata, ctx->authsize);
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memcpy((char *)sg_virt(sg) + sg->length - authsize,
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icvdata, authsize);
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}
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kfree(edesc);
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@ -1006,10 +984,10 @@ static void ipsec_esp_decrypt_swauth_done(struct device *dev,
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{
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struct aead_request *req = context;
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struct crypto_aead *authenc = crypto_aead_reqtfm(req);
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struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
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unsigned int authsize = crypto_aead_authsize(authenc);
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struct talitos_edesc *edesc;
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struct scatterlist *sg;
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void *icvdata;
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char *oicv, *icv;
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edesc = container_of(desc, struct talitos_edesc, desc);
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@ -1017,16 +995,18 @@ static void ipsec_esp_decrypt_swauth_done(struct device *dev,
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if (!err) {
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/* auth check */
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if (edesc->dma_len)
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icvdata = &edesc->link_tbl[edesc->src_nents +
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edesc->dst_nents + 2 +
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edesc->assoc_nents];
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else
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icvdata = &edesc->link_tbl[0];
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sg = sg_last(req->dst, edesc->dst_nents ? : 1);
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err = memcmp(icvdata, (char *)sg_virt(sg) + sg->length -
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ctx->authsize, ctx->authsize) ? -EBADMSG : 0;
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icv = (char *)sg_virt(sg) + sg->length - authsize;
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if (edesc->dma_len) {
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oicv = (char *)&edesc->link_tbl[edesc->src_nents +
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edesc->dst_nents + 2];
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if (edesc->icv_ool)
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icv = oicv + authsize;
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} else
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oicv = (char *)&edesc->link_tbl[0];
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err = memcmp(oicv, icv, authsize) ? -EBADMSG : 0;
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}
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kfree(edesc);
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@ -1059,53 +1039,69 @@ static void ipsec_esp_decrypt_hwauth_done(struct device *dev,
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* convert scatterlist to SEC h/w link table format
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* stop at cryptlen bytes
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*/
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static int sg_to_link_tbl(struct scatterlist *sg, int sg_count,
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int cryptlen, struct talitos_ptr *link_tbl_ptr)
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static int sg_to_link_tbl_offset(struct scatterlist *sg, int sg_count,
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unsigned int offset, int cryptlen,
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struct talitos_ptr *link_tbl_ptr)
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{
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int n_sg = sg_count;
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int count = 0;
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while (sg && n_sg--) {
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to_talitos_ptr(link_tbl_ptr, sg_dma_address(sg), 0);
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link_tbl_ptr->len = cpu_to_be16(sg_dma_len(sg));
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link_tbl_ptr->j_extent = 0;
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link_tbl_ptr++;
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cryptlen -= sg_dma_len(sg);
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while (cryptlen && sg && n_sg--) {
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unsigned int len = sg_dma_len(sg);
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if (offset >= len) {
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offset -= len;
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goto next;
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}
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len -= offset;
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if (len > cryptlen)
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len = cryptlen;
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to_talitos_ptr(link_tbl_ptr + count,
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sg_dma_address(sg) + offset, 0);
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link_tbl_ptr[count].len = cpu_to_be16(len);
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link_tbl_ptr[count].j_extent = 0;
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count++;
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cryptlen -= len;
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offset = 0;
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next:
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sg = sg_next(sg);
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}
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/* adjust (decrease) last one (or two) entry's len to cryptlen */
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link_tbl_ptr--;
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while (be16_to_cpu(link_tbl_ptr->len) <= (-cryptlen)) {
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/* Empty this entry, and move to previous one */
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cryptlen += be16_to_cpu(link_tbl_ptr->len);
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link_tbl_ptr->len = 0;
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sg_count--;
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link_tbl_ptr--;
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}
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link_tbl_ptr->len = cpu_to_be16(be16_to_cpu(link_tbl_ptr->len)
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+ cryptlen);
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/* tag end of link table */
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link_tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN;
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if (count > 0)
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link_tbl_ptr[count - 1].j_extent = DESC_PTR_LNKTBL_RETURN;
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return sg_count;
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return count;
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}
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static inline int sg_to_link_tbl(struct scatterlist *sg, int sg_count,
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int cryptlen,
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struct talitos_ptr *link_tbl_ptr)
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{
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return sg_to_link_tbl_offset(sg, sg_count, 0, cryptlen,
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link_tbl_ptr);
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}
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/*
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* fill in and submit ipsec_esp descriptor
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*/
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static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
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u64 seq, void (*callback) (struct device *dev,
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void (*callback)(struct device *dev,
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struct talitos_desc *desc,
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void *context, int error))
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{
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struct crypto_aead *aead = crypto_aead_reqtfm(areq);
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unsigned int authsize = crypto_aead_authsize(aead);
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struct talitos_ctx *ctx = crypto_aead_ctx(aead);
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struct device *dev = ctx->dev;
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struct talitos_desc *desc = &edesc->desc;
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unsigned int cryptlen = areq->cryptlen;
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unsigned int authsize = ctx->authsize;
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unsigned int ivsize = crypto_aead_ivsize(aead);
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int tbl_off = 0;
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int sg_count, ret;
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int sg_link_tbl_len;
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@ -1113,36 +1109,27 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
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map_single_talitos_ptr(dev, &desc->ptr[0], ctx->authkeylen, &ctx->key,
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DMA_TO_DEVICE);
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sg_count = talitos_map_sg(dev, areq->src, edesc->src_nents ?: 1,
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(areq->src == areq->dst) ? DMA_BIDIRECTIONAL
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: DMA_TO_DEVICE,
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edesc->src_chained);
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/* hmac data */
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desc->ptr[1].len = cpu_to_be16(areq->assoclen + ivsize);
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if (edesc->assoc_nents) {
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int tbl_off = edesc->src_nents + edesc->dst_nents + 2;
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struct talitos_ptr *tbl_ptr = &edesc->link_tbl[tbl_off];
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desc->ptr[1].len = cpu_to_be16(areq->assoclen);
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if (sg_count > 1 &&
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(ret = sg_to_link_tbl_offset(areq->src, sg_count, 0,
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areq->assoclen,
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&edesc->link_tbl[tbl_off])) > 1) {
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tbl_off += ret;
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to_talitos_ptr(&desc->ptr[1], edesc->dma_link_tbl + tbl_off *
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sizeof(struct talitos_ptr), 0);
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desc->ptr[1].j_extent = DESC_PTR_LNKTBL_JUMP;
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/* assoc_nents - 1 entries for assoc, 1 for IV */
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sg_count = sg_to_link_tbl(areq->assoc, edesc->assoc_nents - 1,
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areq->assoclen, tbl_ptr);
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/* add IV to link table */
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tbl_ptr += sg_count - 1;
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tbl_ptr->j_extent = 0;
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tbl_ptr++;
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to_talitos_ptr(tbl_ptr, edesc->iv_dma, 0);
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tbl_ptr->len = cpu_to_be16(ivsize);
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tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN;
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dma_sync_single_for_device(dev, edesc->dma_link_tbl,
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edesc->dma_len, DMA_BIDIRECTIONAL);
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} else {
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if (areq->assoclen)
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to_talitos_ptr(&desc->ptr[1],
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sg_dma_address(areq->assoc), 0);
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else
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to_talitos_ptr(&desc->ptr[1], edesc->iv_dma, 0);
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to_talitos_ptr(&desc->ptr[1], sg_dma_address(areq->src), 0);
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desc->ptr[1].j_extent = 0;
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}
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@ -1150,8 +1137,6 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
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to_talitos_ptr(&desc->ptr[2], edesc->iv_dma, 0);
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desc->ptr[2].len = cpu_to_be16(ivsize);
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desc->ptr[2].j_extent = 0;
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/* Sync needed for the aead_givencrypt case */
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dma_sync_single_for_device(dev, edesc->iv_dma, ivsize, DMA_TO_DEVICE);
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/* cipher key */
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map_single_talitos_ptr(dev, &desc->ptr[3], ctx->enckeylen,
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@ -1167,33 +1152,24 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
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desc->ptr[4].len = cpu_to_be16(cryptlen);
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desc->ptr[4].j_extent = authsize;
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sg_count = talitos_map_sg(dev, areq->src, edesc->src_nents ? : 1,
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(areq->src == areq->dst) ? DMA_BIDIRECTIONAL
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: DMA_TO_DEVICE,
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edesc->src_chained);
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if (sg_count == 1) {
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to_talitos_ptr(&desc->ptr[4], sg_dma_address(areq->src), 0);
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} else {
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sg_link_tbl_len = cryptlen;
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if (edesc->desc.hdr & DESC_HDR_MODE1_MDEU_CICV)
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sg_link_tbl_len = cryptlen + authsize;
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sg_link_tbl_len += authsize;
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sg_count = sg_to_link_tbl(areq->src, sg_count, sg_link_tbl_len,
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&edesc->link_tbl[0]);
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if (sg_count > 1) {
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if (sg_count > 1 &&
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(ret = sg_to_link_tbl_offset(areq->src, sg_count, areq->assoclen,
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sg_link_tbl_len,
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&edesc->link_tbl[tbl_off])) > 1) {
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tbl_off += ret;
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desc->ptr[4].j_extent |= DESC_PTR_LNKTBL_JUMP;
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to_talitos_ptr(&desc->ptr[4], edesc->dma_link_tbl, 0);
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to_talitos_ptr(&desc->ptr[4], edesc->dma_link_tbl +
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tbl_off *
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sizeof(struct talitos_ptr), 0);
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dma_sync_single_for_device(dev, edesc->dma_link_tbl,
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edesc->dma_len,
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DMA_BIDIRECTIONAL);
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} else {
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/* Only one segment now, so no link tbl needed */
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to_talitos_ptr(&desc->ptr[4],
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sg_dma_address(areq->src), 0);
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}
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}
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} else
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to_talitos_ptr(&desc->ptr[4], sg_dma_address(areq->src), 0);
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/* cipher out */
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desc->ptr[5].len = cpu_to_be16(cryptlen);
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@ -1204,16 +1180,17 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
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edesc->dst_nents ? : 1,
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DMA_FROM_DEVICE, edesc->dst_chained);
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if (sg_count == 1) {
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to_talitos_ptr(&desc->ptr[5], sg_dma_address(areq->dst), 0);
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} else {
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int tbl_off = edesc->src_nents + 1;
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edesc->icv_ool = false;
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if (sg_count > 1 &&
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(sg_count = sg_to_link_tbl_offset(areq->dst, sg_count,
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areq->assoclen, cryptlen,
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&edesc->link_tbl[tbl_off])) >
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1) {
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struct talitos_ptr *tbl_ptr = &edesc->link_tbl[tbl_off];
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to_talitos_ptr(&desc->ptr[5], edesc->dma_link_tbl +
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tbl_off * sizeof(struct talitos_ptr), 0);
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sg_count = sg_to_link_tbl(areq->dst, sg_count, cryptlen,
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tbl_ptr);
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/* Add an entry to the link table for ICV data */
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tbl_ptr += sg_count - 1;
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@ -1224,13 +1201,16 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
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/* icv data follows link tables */
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to_talitos_ptr(tbl_ptr, edesc->dma_link_tbl +
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(tbl_off + edesc->dst_nents + 1 +
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edesc->assoc_nents) *
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sizeof(struct talitos_ptr), 0);
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(edesc->src_nents + edesc->dst_nents +
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2) * sizeof(struct talitos_ptr) +
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authsize, 0);
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desc->ptr[5].j_extent |= DESC_PTR_LNKTBL_JUMP;
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dma_sync_single_for_device(ctx->dev, edesc->dma_link_tbl,
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edesc->dma_len, DMA_BIDIRECTIONAL);
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}
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edesc->icv_ool = true;
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} else
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to_talitos_ptr(&desc->ptr[5], sg_dma_address(areq->dst), 0);
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/* iv out */
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map_single_talitos_ptr(dev, &desc->ptr[6], ivsize, ctx->iv,
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@ -1268,7 +1248,6 @@ static int sg_count(struct scatterlist *sg_list, int nbytes, bool *chained)
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* allocate and map the extended descriptor
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*/
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static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
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struct scatterlist *assoc,
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struct scatterlist *src,
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struct scatterlist *dst,
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u8 *iv,
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@ -1281,8 +1260,8 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
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bool encrypt)
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{
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struct talitos_edesc *edesc;
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int assoc_nents = 0, src_nents, dst_nents, alloc_len, dma_len;
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bool assoc_chained = false, src_chained = false, dst_chained = false;
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int src_nents, dst_nents, alloc_len, dma_len;
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bool src_chained = false, dst_chained = false;
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dma_addr_t iv_dma = 0;
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gfp_t flags = cryptoflags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
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GFP_ATOMIC;
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|
|
@ -1298,48 +1277,35 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
|
|||
if (ivsize)
|
||||
iv_dma = dma_map_single(dev, iv, ivsize, DMA_TO_DEVICE);
|
||||
|
||||
if (assoclen) {
|
||||
/*
|
||||
* Currently it is assumed that iv is provided whenever assoc
|
||||
* is.
|
||||
*/
|
||||
BUG_ON(!iv);
|
||||
|
||||
assoc_nents = sg_count(assoc, assoclen, &assoc_chained);
|
||||
talitos_map_sg(dev, assoc, assoc_nents, DMA_TO_DEVICE,
|
||||
assoc_chained);
|
||||
assoc_nents = (assoc_nents == 1) ? 0 : assoc_nents;
|
||||
|
||||
if (assoc_nents || sg_dma_address(assoc) + assoclen != iv_dma)
|
||||
assoc_nents = assoc_nents ? assoc_nents + 1 : 2;
|
||||
}
|
||||
|
||||
if (!dst || dst == src) {
|
||||
src_nents = sg_count(src, cryptlen + authsize, &src_chained);
|
||||
src_nents = sg_count(src, assoclen + cryptlen + authsize,
|
||||
&src_chained);
|
||||
src_nents = (src_nents == 1) ? 0 : src_nents;
|
||||
dst_nents = dst ? src_nents : 0;
|
||||
} else { /* dst && dst != src*/
|
||||
src_nents = sg_count(src, cryptlen + (encrypt ? 0 : authsize),
|
||||
src_nents = sg_count(src, assoclen + cryptlen +
|
||||
(encrypt ? 0 : authsize),
|
||||
&src_chained);
|
||||
src_nents = (src_nents == 1) ? 0 : src_nents;
|
||||
dst_nents = sg_count(dst, cryptlen + (encrypt ? authsize : 0),
|
||||
dst_nents = sg_count(dst, assoclen + cryptlen +
|
||||
(encrypt ? authsize : 0),
|
||||
&dst_chained);
|
||||
dst_nents = (dst_nents == 1) ? 0 : dst_nents;
|
||||
}
|
||||
|
||||
/*
|
||||
* allocate space for base edesc plus the link tables,
|
||||
* allowing for two separate entries for ICV and generated ICV (+ 2),
|
||||
* and the ICV data itself
|
||||
* allowing for two separate entries for AD and generated ICV (+ 2),
|
||||
* and space for two sets of ICVs (stashed and generated)
|
||||
*/
|
||||
alloc_len = sizeof(struct talitos_edesc);
|
||||
if (assoc_nents || src_nents || dst_nents) {
|
||||
if (src_nents || dst_nents) {
|
||||
if (is_sec1)
|
||||
dma_len = (src_nents ? cryptlen : 0) +
|
||||
(dst_nents ? cryptlen : 0);
|
||||
else
|
||||
dma_len = (src_nents + dst_nents + 2 + assoc_nents) *
|
||||
sizeof(struct talitos_ptr) + authsize;
|
||||
dma_len = (src_nents + dst_nents + 2) *
|
||||
sizeof(struct talitos_ptr) + authsize * 2;
|
||||
alloc_len += dma_len;
|
||||
} else {
|
||||
dma_len = 0;
|
||||
|
|
@ -1348,13 +1314,6 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
|
|||
|
||||
edesc = kmalloc(alloc_len, GFP_DMA | flags);
|
||||
if (!edesc) {
|
||||
if (assoc_chained)
|
||||
talitos_unmap_sg_chain(dev, assoc, DMA_TO_DEVICE);
|
||||
else if (assoclen)
|
||||
dma_unmap_sg(dev, assoc,
|
||||
assoc_nents ? assoc_nents - 1 : 1,
|
||||
DMA_TO_DEVICE);
|
||||
|
||||
if (iv_dma)
|
||||
dma_unmap_single(dev, iv_dma, ivsize, DMA_TO_DEVICE);
|
||||
|
||||
|
|
@ -1362,10 +1321,8 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
|
|||
return ERR_PTR(-ENOMEM);
|
||||
}
|
||||
|
||||
edesc->assoc_nents = assoc_nents;
|
||||
edesc->src_nents = src_nents;
|
||||
edesc->dst_nents = dst_nents;
|
||||
edesc->assoc_chained = assoc_chained;
|
||||
edesc->src_chained = src_chained;
|
||||
edesc->dst_chained = dst_chained;
|
||||
edesc->iv_dma = iv_dma;
|
||||
|
|
@ -1382,12 +1339,13 @@ static struct talitos_edesc *aead_edesc_alloc(struct aead_request *areq, u8 *iv,
|
|||
int icv_stashing, bool encrypt)
|
||||
{
|
||||
struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
|
||||
unsigned int authsize = crypto_aead_authsize(authenc);
|
||||
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
|
||||
unsigned int ivsize = crypto_aead_ivsize(authenc);
|
||||
|
||||
return talitos_edesc_alloc(ctx->dev, areq->assoc, areq->src, areq->dst,
|
||||
return talitos_edesc_alloc(ctx->dev, areq->src, areq->dst,
|
||||
iv, areq->assoclen, areq->cryptlen,
|
||||
ctx->authsize, ivsize, icv_stashing,
|
||||
authsize, ivsize, icv_stashing,
|
||||
areq->base.flags, encrypt);
|
||||
}
|
||||
|
||||
|
|
@ -1405,14 +1363,14 @@ static int aead_encrypt(struct aead_request *req)
|
|||
/* set encrypt */
|
||||
edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_MODE0_ENCRYPT;
|
||||
|
||||
return ipsec_esp(edesc, req, 0, ipsec_esp_encrypt_done);
|
||||
return ipsec_esp(edesc, req, ipsec_esp_encrypt_done);
|
||||
}
|
||||
|
||||
static int aead_decrypt(struct aead_request *req)
|
||||
{
|
||||
struct crypto_aead *authenc = crypto_aead_reqtfm(req);
|
||||
unsigned int authsize = crypto_aead_authsize(authenc);
|
||||
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
|
||||
unsigned int authsize = ctx->authsize;
|
||||
struct talitos_private *priv = dev_get_drvdata(ctx->dev);
|
||||
struct talitos_edesc *edesc;
|
||||
struct scatterlist *sg;
|
||||
|
|
@ -1437,7 +1395,7 @@ static int aead_decrypt(struct aead_request *req)
|
|||
/* reset integrity check result bits */
|
||||
edesc->desc.hdr_lo = 0;
|
||||
|
||||
return ipsec_esp(edesc, req, 0, ipsec_esp_decrypt_hwauth_done);
|
||||
return ipsec_esp(edesc, req, ipsec_esp_decrypt_hwauth_done);
|
||||
}
|
||||
|
||||
/* Have to check the ICV with software */
|
||||
|
|
@ -1445,40 +1403,16 @@ static int aead_decrypt(struct aead_request *req)
|
|||
|
||||
/* stash incoming ICV for later cmp with ICV generated by the h/w */
|
||||
if (edesc->dma_len)
|
||||
icvdata = &edesc->link_tbl[edesc->src_nents +
|
||||
edesc->dst_nents + 2 +
|
||||
edesc->assoc_nents];
|
||||
icvdata = (char *)&edesc->link_tbl[edesc->src_nents +
|
||||
edesc->dst_nents + 2];
|
||||
else
|
||||
icvdata = &edesc->link_tbl[0];
|
||||
|
||||
sg = sg_last(req->src, edesc->src_nents ? : 1);
|
||||
|
||||
memcpy(icvdata, (char *)sg_virt(sg) + sg->length - ctx->authsize,
|
||||
ctx->authsize);
|
||||
memcpy(icvdata, (char *)sg_virt(sg) + sg->length - authsize, authsize);
|
||||
|
||||
return ipsec_esp(edesc, req, 0, ipsec_esp_decrypt_swauth_done);
|
||||
}
|
||||
|
||||
static int aead_givencrypt(struct aead_givcrypt_request *req)
|
||||
{
|
||||
struct aead_request *areq = &req->areq;
|
||||
struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
|
||||
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
|
||||
struct talitos_edesc *edesc;
|
||||
|
||||
/* allocate extended descriptor */
|
||||
edesc = aead_edesc_alloc(areq, req->giv, 0, true);
|
||||
if (IS_ERR(edesc))
|
||||
return PTR_ERR(edesc);
|
||||
|
||||
/* set encrypt */
|
||||
edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_MODE0_ENCRYPT;
|
||||
|
||||
memcpy(req->giv, ctx->iv, crypto_aead_ivsize(authenc));
|
||||
/* avoid consecutive packets going out with same IV */
|
||||
*(__be64 *)req->giv ^= cpu_to_be64(req->seq);
|
||||
|
||||
return ipsec_esp(edesc, areq, req->seq, ipsec_esp_encrypt_done);
|
||||
return ipsec_esp(edesc, req, ipsec_esp_decrypt_swauth_done);
|
||||
}
|
||||
|
||||
static int ablkcipher_setkey(struct crypto_ablkcipher *cipher,
|
||||
|
|
@ -1710,7 +1644,7 @@ static struct talitos_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request *
|
|||
struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
|
||||
unsigned int ivsize = crypto_ablkcipher_ivsize(cipher);
|
||||
|
||||
return talitos_edesc_alloc(ctx->dev, NULL, areq->src, areq->dst,
|
||||
return talitos_edesc_alloc(ctx->dev, areq->src, areq->dst,
|
||||
areq->info, 0, areq->nbytes, 0, ivsize, 0,
|
||||
areq->base.flags, encrypt);
|
||||
}
|
||||
|
|
@ -1895,7 +1829,7 @@ static struct talitos_edesc *ahash_edesc_alloc(struct ahash_request *areq,
|
|||
struct talitos_ctx *ctx = crypto_ahash_ctx(tfm);
|
||||
struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
|
||||
|
||||
return talitos_edesc_alloc(ctx->dev, NULL, req_ctx->psrc, NULL, NULL, 0,
|
||||
return talitos_edesc_alloc(ctx->dev, req_ctx->psrc, NULL, NULL, 0,
|
||||
nbytes, 0, 0, 0, areq->base.flags, false);
|
||||
}
|
||||
|
||||
|
|
@ -2161,6 +2095,7 @@ struct talitos_alg_template {
|
|||
union {
|
||||
struct crypto_alg crypto;
|
||||
struct ahash_alg hash;
|
||||
struct aead_alg aead;
|
||||
} alg;
|
||||
__be32 desc_hdr_template;
|
||||
};
|
||||
|
|
@ -2168,15 +2103,16 @@ struct talitos_alg_template {
|
|||
static struct talitos_alg_template driver_algs[] = {
|
||||
/* AEAD algorithms. These use a single-pass ipsec_esp descriptor */
|
||||
{ .type = CRYPTO_ALG_TYPE_AEAD,
|
||||
.alg.crypto = {
|
||||
.alg.aead = {
|
||||
.base = {
|
||||
.cra_name = "authenc(hmac(sha1),cbc(aes))",
|
||||
.cra_driver_name = "authenc-hmac-sha1-cbc-aes-talitos",
|
||||
.cra_driver_name = "authenc-hmac-sha1-"
|
||||
"cbc-aes-talitos",
|
||||
.cra_blocksize = AES_BLOCK_SIZE,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
|
||||
.cra_aead = {
|
||||
.cra_flags = CRYPTO_ALG_ASYNC,
|
||||
},
|
||||
.ivsize = AES_BLOCK_SIZE,
|
||||
.maxauthsize = SHA1_DIGEST_SIZE,
|
||||
}
|
||||
},
|
||||
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
|
||||
DESC_HDR_SEL0_AESU |
|
||||
|
|
@ -2187,15 +2123,17 @@ static struct talitos_alg_template driver_algs[] = {
|
|||
DESC_HDR_MODE1_MDEU_SHA1_HMAC,
|
||||
},
|
||||
{ .type = CRYPTO_ALG_TYPE_AEAD,
|
||||
.alg.crypto = {
|
||||
.cra_name = "authenc(hmac(sha1),cbc(des3_ede))",
|
||||
.cra_driver_name = "authenc-hmac-sha1-cbc-3des-talitos",
|
||||
.alg.aead = {
|
||||
.base = {
|
||||
.cra_name = "authenc(hmac(sha1),"
|
||||
"cbc(des3_ede))",
|
||||
.cra_driver_name = "authenc-hmac-sha1-"
|
||||
"cbc-3des-talitos",
|
||||
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
|
||||
.cra_aead = {
|
||||
.cra_flags = CRYPTO_ALG_ASYNC,
|
||||
},
|
||||
.ivsize = DES3_EDE_BLOCK_SIZE,
|
||||
.maxauthsize = SHA1_DIGEST_SIZE,
|
||||
}
|
||||
},
|
||||
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
|
||||
DESC_HDR_SEL0_DEU |
|
||||
|
|
@ -2207,15 +2145,16 @@ static struct talitos_alg_template driver_algs[] = {
|
|||
DESC_HDR_MODE1_MDEU_SHA1_HMAC,
|
||||
},
|
||||
{ .type = CRYPTO_ALG_TYPE_AEAD,
|
||||
.alg.crypto = {
|
||||
.alg.aead = {
|
||||
.base = {
|
||||
.cra_name = "authenc(hmac(sha224),cbc(aes))",
|
||||
.cra_driver_name = "authenc-hmac-sha224-cbc-aes-talitos",
|
||||
.cra_driver_name = "authenc-hmac-sha224-"
|
||||
"cbc-aes-talitos",
|
||||
.cra_blocksize = AES_BLOCK_SIZE,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
|
||||
.cra_aead = {
|
||||
.cra_flags = CRYPTO_ALG_ASYNC,
|
||||
},
|
||||
.ivsize = AES_BLOCK_SIZE,
|
||||
.maxauthsize = SHA224_DIGEST_SIZE,
|
||||
}
|
||||
},
|
||||
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
|
||||
DESC_HDR_SEL0_AESU |
|
||||
|
|
@ -2226,15 +2165,17 @@ static struct talitos_alg_template driver_algs[] = {
|
|||
DESC_HDR_MODE1_MDEU_SHA224_HMAC,
|
||||
},
|
||||
{ .type = CRYPTO_ALG_TYPE_AEAD,
|
||||
.alg.crypto = {
|
||||
.cra_name = "authenc(hmac(sha224),cbc(des3_ede))",
|
||||
.cra_driver_name = "authenc-hmac-sha224-cbc-3des-talitos",
|
||||
.alg.aead = {
|
||||
.base = {
|
||||
.cra_name = "authenc(hmac(sha224),"
|
||||
"cbc(des3_ede))",
|
||||
.cra_driver_name = "authenc-hmac-sha224-"
|
||||
"cbc-3des-talitos",
|
||||
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
|
||||
.cra_aead = {
|
||||
.cra_flags = CRYPTO_ALG_ASYNC,
|
||||
},
|
||||
.ivsize = DES3_EDE_BLOCK_SIZE,
|
||||
.maxauthsize = SHA224_DIGEST_SIZE,
|
||||
}
|
||||
},
|
||||
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
|
||||
DESC_HDR_SEL0_DEU |
|
||||
|
|
@ -2246,15 +2187,16 @@ static struct talitos_alg_template driver_algs[] = {
|
|||
DESC_HDR_MODE1_MDEU_SHA224_HMAC,
|
||||
},
|
||||
{ .type = CRYPTO_ALG_TYPE_AEAD,
|
||||
.alg.crypto = {
|
||||
.alg.aead = {
|
||||
.base = {
|
||||
.cra_name = "authenc(hmac(sha256),cbc(aes))",
|
||||
.cra_driver_name = "authenc-hmac-sha256-cbc-aes-talitos",
|
||||
.cra_driver_name = "authenc-hmac-sha256-"
|
||||
"cbc-aes-talitos",
|
||||
.cra_blocksize = AES_BLOCK_SIZE,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
|
||||
.cra_aead = {
|
||||
.cra_flags = CRYPTO_ALG_ASYNC,
|
||||
},
|
||||
.ivsize = AES_BLOCK_SIZE,
|
||||
.maxauthsize = SHA256_DIGEST_SIZE,
|
||||
}
|
||||
},
|
||||
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
|
||||
DESC_HDR_SEL0_AESU |
|
||||
|
|
@ -2265,15 +2207,17 @@ static struct talitos_alg_template driver_algs[] = {
|
|||
DESC_HDR_MODE1_MDEU_SHA256_HMAC,
|
||||
},
|
||||
{ .type = CRYPTO_ALG_TYPE_AEAD,
|
||||
.alg.crypto = {
|
||||
.cra_name = "authenc(hmac(sha256),cbc(des3_ede))",
|
||||
.cra_driver_name = "authenc-hmac-sha256-cbc-3des-talitos",
|
||||
.alg.aead = {
|
||||
.base = {
|
||||
.cra_name = "authenc(hmac(sha256),"
|
||||
"cbc(des3_ede))",
|
||||
.cra_driver_name = "authenc-hmac-sha256-"
|
||||
"cbc-3des-talitos",
|
||||
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
|
||||
.cra_aead = {
|
||||
.cra_flags = CRYPTO_ALG_ASYNC,
|
||||
},
|
||||
.ivsize = DES3_EDE_BLOCK_SIZE,
|
||||
.maxauthsize = SHA256_DIGEST_SIZE,
|
||||
}
|
||||
},
|
||||
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
|
||||
DESC_HDR_SEL0_DEU |
|
||||
|
|
@ -2285,15 +2229,16 @@ static struct talitos_alg_template driver_algs[] = {
|
|||
DESC_HDR_MODE1_MDEU_SHA256_HMAC,
|
||||
},
|
||||
{ .type = CRYPTO_ALG_TYPE_AEAD,
|
||||
.alg.crypto = {
|
||||
.alg.aead = {
|
||||
.base = {
|
||||
.cra_name = "authenc(hmac(sha384),cbc(aes))",
|
||||
.cra_driver_name = "authenc-hmac-sha384-cbc-aes-talitos",
|
||||
.cra_driver_name = "authenc-hmac-sha384-"
|
||||
"cbc-aes-talitos",
|
||||
.cra_blocksize = AES_BLOCK_SIZE,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
|
||||
.cra_aead = {
|
||||
.cra_flags = CRYPTO_ALG_ASYNC,
|
||||
},
|
||||
.ivsize = AES_BLOCK_SIZE,
|
||||
.maxauthsize = SHA384_DIGEST_SIZE,
|
||||
}
|
||||
},
|
||||
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
|
||||
DESC_HDR_SEL0_AESU |
|
||||
|
|
@ -2304,15 +2249,17 @@ static struct talitos_alg_template driver_algs[] = {
|
|||
DESC_HDR_MODE1_MDEUB_SHA384_HMAC,
|
||||
},
|
||||
{ .type = CRYPTO_ALG_TYPE_AEAD,
|
||||
.alg.crypto = {
|
||||
.cra_name = "authenc(hmac(sha384),cbc(des3_ede))",
|
||||
.cra_driver_name = "authenc-hmac-sha384-cbc-3des-talitos",
|
||||
.alg.aead = {
|
||||
.base = {
|
||||
.cra_name = "authenc(hmac(sha384),"
|
||||
"cbc(des3_ede))",
|
||||
.cra_driver_name = "authenc-hmac-sha384-"
|
||||
"cbc-3des-talitos",
|
||||
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
|
||||
.cra_aead = {
|
||||
.cra_flags = CRYPTO_ALG_ASYNC,
|
||||
},
|
||||
.ivsize = DES3_EDE_BLOCK_SIZE,
|
||||
.maxauthsize = SHA384_DIGEST_SIZE,
|
||||
}
|
||||
},
|
||||
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
|
||||
DESC_HDR_SEL0_DEU |
|
||||
|
|
@ -2324,15 +2271,16 @@ static struct talitos_alg_template driver_algs[] = {
|
|||
DESC_HDR_MODE1_MDEUB_SHA384_HMAC,
|
||||
},
|
||||
{ .type = CRYPTO_ALG_TYPE_AEAD,
|
||||
.alg.crypto = {
|
||||
.alg.aead = {
|
||||
.base = {
|
||||
.cra_name = "authenc(hmac(sha512),cbc(aes))",
|
||||
.cra_driver_name = "authenc-hmac-sha512-cbc-aes-talitos",
|
||||
.cra_driver_name = "authenc-hmac-sha512-"
|
||||
"cbc-aes-talitos",
|
||||
.cra_blocksize = AES_BLOCK_SIZE,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
|
||||
.cra_aead = {
|
||||
.cra_flags = CRYPTO_ALG_ASYNC,
|
||||
},
|
||||
.ivsize = AES_BLOCK_SIZE,
|
||||
.maxauthsize = SHA512_DIGEST_SIZE,
|
||||
}
|
||||
},
|
||||
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
|
||||
DESC_HDR_SEL0_AESU |
|
||||
|
|
@ -2343,15 +2291,17 @@ static struct talitos_alg_template driver_algs[] = {
|
|||
DESC_HDR_MODE1_MDEUB_SHA512_HMAC,
|
||||
},
|
||||
{ .type = CRYPTO_ALG_TYPE_AEAD,
|
||||
.alg.crypto = {
|
||||
.cra_name = "authenc(hmac(sha512),cbc(des3_ede))",
|
||||
.cra_driver_name = "authenc-hmac-sha512-cbc-3des-talitos",
|
||||
.alg.aead = {
|
||||
.base = {
|
||||
.cra_name = "authenc(hmac(sha512),"
|
||||
"cbc(des3_ede))",
|
||||
.cra_driver_name = "authenc-hmac-sha512-"
|
||||
"cbc-3des-talitos",
|
||||
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
|
||||
.cra_aead = {
|
||||
.cra_flags = CRYPTO_ALG_ASYNC,
|
||||
},
|
||||
.ivsize = DES3_EDE_BLOCK_SIZE,
|
||||
.maxauthsize = SHA512_DIGEST_SIZE,
|
||||
}
|
||||
},
|
||||
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
|
||||
DESC_HDR_SEL0_DEU |
|
||||
|
|
@ -2363,15 +2313,16 @@ static struct talitos_alg_template driver_algs[] = {
|
|||
DESC_HDR_MODE1_MDEUB_SHA512_HMAC,
|
||||
},
|
||||
{ .type = CRYPTO_ALG_TYPE_AEAD,
|
||||
.alg.crypto = {
|
||||
.alg.aead = {
|
||||
.base = {
|
||||
.cra_name = "authenc(hmac(md5),cbc(aes))",
|
||||
.cra_driver_name = "authenc-hmac-md5-cbc-aes-talitos",
|
||||
.cra_driver_name = "authenc-hmac-md5-"
|
||||
"cbc-aes-talitos",
|
||||
.cra_blocksize = AES_BLOCK_SIZE,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
|
||||
.cra_aead = {
|
||||
.cra_flags = CRYPTO_ALG_ASYNC,
|
||||
},
|
||||
.ivsize = AES_BLOCK_SIZE,
|
||||
.maxauthsize = MD5_DIGEST_SIZE,
|
||||
}
|
||||
},
|
||||
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
|
||||
DESC_HDR_SEL0_AESU |
|
||||
|
|
@ -2382,15 +2333,16 @@ static struct talitos_alg_template driver_algs[] = {
|
|||
DESC_HDR_MODE1_MDEU_MD5_HMAC,
|
||||
},
|
||||
{ .type = CRYPTO_ALG_TYPE_AEAD,
|
||||
.alg.crypto = {
|
||||
.alg.aead = {
|
||||
.base = {
|
||||
.cra_name = "authenc(hmac(md5),cbc(des3_ede))",
|
||||
.cra_driver_name = "authenc-hmac-md5-cbc-3des-talitos",
|
||||
.cra_driver_name = "authenc-hmac-md5-"
|
||||
"cbc-3des-talitos",
|
||||
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
|
||||
.cra_aead = {
|
||||
.cra_flags = CRYPTO_ALG_ASYNC,
|
||||
},
|
||||
.ivsize = DES3_EDE_BLOCK_SIZE,
|
||||
.maxauthsize = MD5_DIGEST_SIZE,
|
||||
}
|
||||
},
|
||||
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
|
||||
DESC_HDR_SEL0_DEU |
|
||||
|
|
@ -2658,15 +2610,9 @@ static int talitos_cra_init(struct crypto_tfm *tfm)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int talitos_cra_init_aead(struct crypto_tfm *tfm)
|
||||
static int talitos_cra_init_aead(struct crypto_aead *tfm)
|
||||
{
|
||||
struct talitos_ctx *ctx = crypto_tfm_ctx(tfm);
|
||||
|
||||
talitos_cra_init(tfm);
|
||||
|
||||
/* random first IV */
|
||||
get_random_bytes(ctx->iv, TALITOS_MAX_IV_LENGTH);
|
||||
|
||||
talitos_cra_init(crypto_aead_tfm(tfm));
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -2713,9 +2659,9 @@ static int talitos_remove(struct platform_device *ofdev)
|
|||
list_for_each_entry_safe(t_alg, n, &priv->alg_list, entry) {
|
||||
switch (t_alg->algt.type) {
|
||||
case CRYPTO_ALG_TYPE_ABLKCIPHER:
|
||||
case CRYPTO_ALG_TYPE_AEAD:
|
||||
crypto_unregister_alg(&t_alg->algt.alg.crypto);
|
||||
break;
|
||||
case CRYPTO_ALG_TYPE_AEAD:
|
||||
crypto_unregister_aead(&t_alg->algt.alg.aead);
|
||||
case CRYPTO_ALG_TYPE_AHASH:
|
||||
crypto_unregister_ahash(&t_alg->algt.alg.hash);
|
||||
break;
|
||||
|
|
@ -2774,15 +2720,12 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
|
|||
alg->cra_ablkcipher.geniv = "eseqiv";
|
||||
break;
|
||||
case CRYPTO_ALG_TYPE_AEAD:
|
||||
alg = &t_alg->algt.alg.crypto;
|
||||
alg->cra_init = talitos_cra_init_aead;
|
||||
alg->cra_type = &crypto_aead_type;
|
||||
alg->cra_aead.setkey = aead_setkey;
|
||||
alg->cra_aead.setauthsize = aead_setauthsize;
|
||||
alg->cra_aead.encrypt = aead_encrypt;
|
||||
alg->cra_aead.decrypt = aead_decrypt;
|
||||
alg->cra_aead.givencrypt = aead_givencrypt;
|
||||
alg->cra_aead.geniv = "<built-in>";
|
||||
alg = &t_alg->algt.alg.aead.base;
|
||||
alg->cra_flags |= CRYPTO_ALG_AEAD_NEW;
|
||||
t_alg->algt.alg.aead.init = talitos_cra_init_aead;
|
||||
t_alg->algt.alg.aead.setkey = aead_setkey;
|
||||
t_alg->algt.alg.aead.encrypt = aead_encrypt;
|
||||
t_alg->algt.alg.aead.decrypt = aead_decrypt;
|
||||
break;
|
||||
case CRYPTO_ALG_TYPE_AHASH:
|
||||
alg = &t_alg->algt.alg.hash.halg.base;
|
||||
|
|
@ -3041,7 +2984,7 @@ static int talitos_probe(struct platform_device *ofdev)
|
|||
for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
|
||||
if (hw_supports(dev, driver_algs[i].desc_hdr_template)) {
|
||||
struct talitos_crypto_alg *t_alg;
|
||||
char *name = NULL;
|
||||
struct crypto_alg *alg = NULL;
|
||||
|
||||
t_alg = talitos_alg_alloc(dev, &driver_algs[i]);
|
||||
if (IS_ERR(t_alg)) {
|
||||
|
|
@ -3053,21 +2996,26 @@ static int talitos_probe(struct platform_device *ofdev)
|
|||
|
||||
switch (t_alg->algt.type) {
|
||||
case CRYPTO_ALG_TYPE_ABLKCIPHER:
|
||||
case CRYPTO_ALG_TYPE_AEAD:
|
||||
err = crypto_register_alg(
|
||||
&t_alg->algt.alg.crypto);
|
||||
name = t_alg->algt.alg.crypto.cra_driver_name;
|
||||
alg = &t_alg->algt.alg.crypto;
|
||||
break;
|
||||
|
||||
case CRYPTO_ALG_TYPE_AEAD:
|
||||
err = crypto_register_aead(
|
||||
&t_alg->algt.alg.aead);
|
||||
alg = &t_alg->algt.alg.aead.base;
|
||||
break;
|
||||
|
||||
case CRYPTO_ALG_TYPE_AHASH:
|
||||
err = crypto_register_ahash(
|
||||
&t_alg->algt.alg.hash);
|
||||
name =
|
||||
t_alg->algt.alg.hash.halg.base.cra_driver_name;
|
||||
alg = &t_alg->algt.alg.hash.halg.base;
|
||||
break;
|
||||
}
|
||||
if (err) {
|
||||
dev_err(dev, "%s alg registration failed\n",
|
||||
name);
|
||||
alg->cra_driver_name);
|
||||
kfree(t_alg);
|
||||
} else
|
||||
list_add_tail(&t_alg->entry, &priv->alg_list);
|
||||
|
|
|
|||
Loading…
Reference in New Issue