summaryrefslogtreecommitdiffstats
path: root/drivers/crypto/talitos.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/crypto/talitos.c')
-rw-r--r--drivers/crypto/talitos.c442
1 files changed, 194 insertions, 248 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index efff788d2f1d..da1112765a44 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -38,6 +38,7 @@
#include <linux/spinlock.h>
#include <linux/rtnetlink.h>
#include <linux/slab.h>
+#include <linux/string.h>
#include <crypto/algapi.h>
#include <crypto/aes.h>
@@ -714,8 +715,13 @@ badkey:
/*
* talitos_edesc - s/w-extended descriptor
+ * @assoc_nents: number of segments in associated data scatterlist
* @src_nents: number of segments in input scatterlist
* @dst_nents: number of segments in output scatterlist
+ * @assoc_chained: whether assoc is chained or not
+ * @src_chained: whether src is chained or not
+ * @dst_chained: whether dst is chained or not
+ * @iv_dma: dma address of iv for checking continuity and link table
* @dma_len: length of dma mapped link_tbl space
* @dma_link_tbl: bus physical address of link_tbl
* @desc: h/w descriptor
@@ -726,10 +732,13 @@ badkey:
* of link_tbl data
*/
struct talitos_edesc {
+ int assoc_nents;
int src_nents;
int dst_nents;
- int src_is_chained;
- int dst_is_chained;
+ bool assoc_chained;
+ bool src_chained;
+ bool dst_chained;
+ dma_addr_t iv_dma;
int dma_len;
dma_addr_t dma_link_tbl;
struct talitos_desc desc;
@@ -738,7 +747,7 @@ struct talitos_edesc {
static int talitos_map_sg(struct device *dev, struct scatterlist *sg,
unsigned int nents, enum dma_data_direction dir,
- int chained)
+ bool chained)
{
if (unlikely(chained))
while (sg) {
@@ -768,13 +777,13 @@ static void talitos_sg_unmap(struct device *dev,
unsigned int dst_nents = edesc->dst_nents ? : 1;
if (src != dst) {
- if (edesc->src_is_chained)
+ if (edesc->src_chained)
talitos_unmap_sg_chain(dev, src, DMA_TO_DEVICE);
else
dma_unmap_sg(dev, src, src_nents, DMA_TO_DEVICE);
if (dst) {
- if (edesc->dst_is_chained)
+ if (edesc->dst_chained)
talitos_unmap_sg_chain(dev, dst,
DMA_FROM_DEVICE);
else
@@ -782,7 +791,7 @@ static void talitos_sg_unmap(struct device *dev,
DMA_FROM_DEVICE);
}
} else
- if (edesc->src_is_chained)
+ if (edesc->src_chained)
talitos_unmap_sg_chain(dev, src, DMA_BIDIRECTIONAL);
else
dma_unmap_sg(dev, src, src_nents, DMA_BIDIRECTIONAL);
@@ -797,7 +806,13 @@ static void ipsec_esp_unmap(struct device *dev,
unmap_single_talitos_ptr(dev, &edesc->desc.ptr[2], DMA_TO_DEVICE);
unmap_single_talitos_ptr(dev, &edesc->desc.ptr[0], DMA_TO_DEVICE);
- dma_unmap_sg(dev, areq->assoc, 1, DMA_TO_DEVICE);
+ if (edesc->assoc_chained)
+ talitos_unmap_sg_chain(dev, areq->assoc, DMA_TO_DEVICE);
+ else
+ /* assoc_nents counts also for IV in non-contiguous cases */
+ dma_unmap_sg(dev, areq->assoc,
+ edesc->assoc_nents ? edesc->assoc_nents - 1 : 1,
+ DMA_TO_DEVICE);
talitos_sg_unmap(dev, edesc, areq->src, areq->dst);
@@ -825,9 +840,10 @@ static void ipsec_esp_encrypt_done(struct device *dev,
ipsec_esp_unmap(dev, edesc, areq);
/* copy the generated ICV to dst */
- if (edesc->dma_len) {
+ if (edesc->dst_nents) {
icvdata = &edesc->link_tbl[edesc->src_nents +
- edesc->dst_nents + 2];
+ edesc->dst_nents + 2 +
+ edesc->assoc_nents];
sg = sg_last(areq->dst, edesc->dst_nents);
memcpy((char *)sg_virt(sg) + sg->length - ctx->authsize,
icvdata, ctx->authsize);
@@ -857,7 +873,8 @@ static void ipsec_esp_decrypt_swauth_done(struct device *dev,
/* auth check */
if (edesc->dma_len)
icvdata = &edesc->link_tbl[edesc->src_nents +
- edesc->dst_nents + 2];
+ edesc->dst_nents + 2 +
+ edesc->assoc_nents];
else
icvdata = &edesc->link_tbl[0];
@@ -932,10 +949,9 @@ static int sg_to_link_tbl(struct scatterlist *sg, int sg_count,
* fill in and submit ipsec_esp descriptor
*/
static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
- u8 *giv, u64 seq,
- void (*callback) (struct device *dev,
- struct talitos_desc *desc,
- void *context, int error))
+ u64 seq, void (*callback) (struct device *dev,
+ struct talitos_desc *desc,
+ void *context, int error))
{
struct crypto_aead *aead = crypto_aead_reqtfm(areq);
struct talitos_ctx *ctx = crypto_aead_ctx(aead);
@@ -950,12 +966,42 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
/* hmac key */
map_single_talitos_ptr(dev, &desc->ptr[0], ctx->authkeylen, &ctx->key,
0, DMA_TO_DEVICE);
+
/* hmac data */
- map_single_talitos_ptr(dev, &desc->ptr[1], areq->assoclen + ivsize,
- sg_virt(areq->assoc), 0, DMA_TO_DEVICE);
+ desc->ptr[1].len = cpu_to_be16(areq->assoclen + ivsize);
+ if (edesc->assoc_nents) {
+ int tbl_off = edesc->src_nents + edesc->dst_nents + 2;
+ struct talitos_ptr *tbl_ptr = &edesc->link_tbl[tbl_off];
+
+ to_talitos_ptr(&desc->ptr[1], edesc->dma_link_tbl + tbl_off *
+ sizeof(struct talitos_ptr));
+ desc->ptr[1].j_extent = DESC_PTR_LNKTBL_JUMP;
+
+ /* assoc_nents - 1 entries for assoc, 1 for IV */
+ sg_count = sg_to_link_tbl(areq->assoc, edesc->assoc_nents - 1,
+ areq->assoclen, tbl_ptr);
+
+ /* add IV to link table */
+ tbl_ptr += sg_count - 1;
+ tbl_ptr->j_extent = 0;
+ tbl_ptr++;
+ to_talitos_ptr(tbl_ptr, edesc->iv_dma);
+ tbl_ptr->len = cpu_to_be16(ivsize);
+ tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN;
+
+ dma_sync_single_for_device(dev, edesc->dma_link_tbl,
+ edesc->dma_len, DMA_BIDIRECTIONAL);
+ } else {
+ to_talitos_ptr(&desc->ptr[1], sg_dma_address(areq->assoc));
+ desc->ptr[1].j_extent = 0;
+ }
+
/* cipher iv */
- map_single_talitos_ptr(dev, &desc->ptr[2], ivsize, giv ?: areq->iv, 0,
- DMA_TO_DEVICE);
+ to_talitos_ptr(&desc->ptr[2], edesc->iv_dma);
+ desc->ptr[2].len = cpu_to_be16(ivsize);
+ desc->ptr[2].j_extent = 0;
+ /* Sync needed for the aead_givencrypt case */
+ dma_sync_single_for_device(dev, edesc->iv_dma, ivsize, DMA_TO_DEVICE);
/* cipher key */
map_single_talitos_ptr(dev, &desc->ptr[3], ctx->enckeylen,
@@ -974,7 +1020,7 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
sg_count = talitos_map_sg(dev, areq->src, edesc->src_nents ? : 1,
(areq->src == areq->dst) ? DMA_BIDIRECTIONAL
: DMA_TO_DEVICE,
- edesc->src_is_chained);
+ edesc->src_chained);
if (sg_count == 1) {
to_talitos_ptr(&desc->ptr[4], sg_dma_address(areq->src));
@@ -1006,32 +1052,30 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
if (areq->src != areq->dst)
sg_count = talitos_map_sg(dev, areq->dst,
edesc->dst_nents ? : 1,
- DMA_FROM_DEVICE,
- edesc->dst_is_chained);
+ DMA_FROM_DEVICE, edesc->dst_chained);
if (sg_count == 1) {
to_talitos_ptr(&desc->ptr[5], sg_dma_address(areq->dst));
} else {
- struct talitos_ptr *link_tbl_ptr =
- &edesc->link_tbl[edesc->src_nents + 1];
+ int tbl_off = edesc->src_nents + 1;
+ struct talitos_ptr *tbl_ptr = &edesc->link_tbl[tbl_off];
to_talitos_ptr(&desc->ptr[5], edesc->dma_link_tbl +
- (edesc->src_nents + 1) *
- sizeof(struct talitos_ptr));
+ tbl_off * sizeof(struct talitos_ptr));
sg_count = sg_to_link_tbl(areq->dst, sg_count, cryptlen,
- link_tbl_ptr);
+ tbl_ptr);
/* Add an entry to the link table for ICV data */
- link_tbl_ptr += sg_count - 1;
- link_tbl_ptr->j_extent = 0;
- sg_count++;
- link_tbl_ptr++;
- link_tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN;
- link_tbl_ptr->len = cpu_to_be16(authsize);
+ tbl_ptr += sg_count - 1;
+ tbl_ptr->j_extent = 0;
+ tbl_ptr++;
+ tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN;
+ tbl_ptr->len = cpu_to_be16(authsize);
/* icv data follows link tables */
- to_talitos_ptr(link_tbl_ptr, edesc->dma_link_tbl +
- (edesc->src_nents + edesc->dst_nents + 2) *
+ to_talitos_ptr(tbl_ptr, edesc->dma_link_tbl +
+ (tbl_off + edesc->dst_nents + 1 +
+ edesc->assoc_nents) *
sizeof(struct talitos_ptr));
desc->ptr[5].j_extent |= DESC_PTR_LNKTBL_JUMP;
dma_sync_single_for_device(ctx->dev, edesc->dma_link_tbl,
@@ -1053,17 +1097,17 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
/*
* derive number of elements in scatterlist
*/
-static int sg_count(struct scatterlist *sg_list, int nbytes, int *chained)
+static int sg_count(struct scatterlist *sg_list, int nbytes, bool *chained)
{
struct scatterlist *sg = sg_list;
int sg_nents = 0;
- *chained = 0;
+ *chained = false;
while (nbytes > 0) {
sg_nents++;
nbytes -= sg->length;
if (!sg_is_last(sg) && (sg + 1)->length == 0)
- *chained = 1;
+ *chained = true;
sg = scatterwalk_sg_next(sg);
}
@@ -1132,17 +1176,21 @@ static size_t sg_copy_end_to_buffer(struct scatterlist *sgl, unsigned int nents,
* allocate and map the extended descriptor
*/
static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
+ struct scatterlist *assoc,
struct scatterlist *src,
struct scatterlist *dst,
- int hash_result,
+ u8 *iv,
+ unsigned int assoclen,
unsigned int cryptlen,
unsigned int authsize,
+ unsigned int ivsize,
int icv_stashing,
u32 cryptoflags)
{
struct talitos_edesc *edesc;
- int src_nents, dst_nents, alloc_len, dma_len;
- int src_chained, dst_chained = 0;
+ int assoc_nents = 0, src_nents, dst_nents, alloc_len, dma_len;
+ bool assoc_chained = false, src_chained = false, dst_chained = false;
+ dma_addr_t iv_dma = 0;
gfp_t flags = cryptoflags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
GFP_ATOMIC;
@@ -1151,10 +1199,29 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
return ERR_PTR(-EINVAL);
}
+ if (iv)
+ iv_dma = dma_map_single(dev, iv, ivsize, DMA_TO_DEVICE);
+
+ if (assoc) {
+ /*
+ * 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;
+ }
+
src_nents = sg_count(src, cryptlen + authsize, &src_chained);
src_nents = (src_nents == 1) ? 0 : src_nents;
- if (hash_result) {
+ if (!dst) {
dst_nents = 0;
} else {
if (dst == src) {
@@ -1172,9 +1239,9 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
* and the ICV data itself
*/
alloc_len = sizeof(struct talitos_edesc);
- if (src_nents || dst_nents) {
- dma_len = (src_nents + dst_nents + 2) *
- sizeof(struct talitos_ptr) + authsize;
+ if (assoc_nents || src_nents || dst_nents) {
+ dma_len = (src_nents + dst_nents + 2 + assoc_nents) *
+ sizeof(struct talitos_ptr) + authsize;
alloc_len += dma_len;
} else {
dma_len = 0;
@@ -1183,14 +1250,20 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
edesc = kmalloc(alloc_len, GFP_DMA | flags);
if (!edesc) {
+ talitos_unmap_sg_chain(dev, assoc, DMA_TO_DEVICE);
+ if (iv_dma)
+ dma_unmap_single(dev, iv_dma, ivsize, DMA_TO_DEVICE);
dev_err(dev, "could not allocate edescriptor\n");
return ERR_PTR(-ENOMEM);
}
+ edesc->assoc_nents = assoc_nents;
edesc->src_nents = src_nents;
edesc->dst_nents = dst_nents;
- edesc->src_is_chained = src_chained;
- edesc->dst_is_chained = dst_chained;
+ edesc->assoc_chained = assoc_chained;
+ edesc->src_chained = src_chained;
+ edesc->dst_chained = dst_chained;
+ edesc->iv_dma = iv_dma;
edesc->dma_len = dma_len;
if (dma_len)
edesc->dma_link_tbl = dma_map_single(dev, &edesc->link_tbl[0],
@@ -1200,14 +1273,16 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
return edesc;
}
-static struct talitos_edesc *aead_edesc_alloc(struct aead_request *areq,
+static struct talitos_edesc *aead_edesc_alloc(struct aead_request *areq, u8 *iv,
int icv_stashing)
{
struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
+ unsigned int ivsize = crypto_aead_ivsize(authenc);
- return talitos_edesc_alloc(ctx->dev, areq->src, areq->dst, 0,
- areq->cryptlen, ctx->authsize, icv_stashing,
+ return talitos_edesc_alloc(ctx->dev, areq->assoc, areq->src, areq->dst,
+ iv, areq->assoclen, areq->cryptlen,
+ ctx->authsize, ivsize, icv_stashing,
areq->base.flags);
}
@@ -1218,14 +1293,14 @@ static int aead_encrypt(struct aead_request *req)
struct talitos_edesc *edesc;
/* allocate extended descriptor */
- edesc = aead_edesc_alloc(req, 0);
+ edesc = aead_edesc_alloc(req, req->iv, 0);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
/* set encrypt */
edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_MODE0_ENCRYPT;
- return ipsec_esp(edesc, req, NULL, 0, ipsec_esp_encrypt_done);
+ return ipsec_esp(edesc, req, 0, ipsec_esp_encrypt_done);
}
static int aead_decrypt(struct aead_request *req)
@@ -1241,7 +1316,7 @@ static int aead_decrypt(struct aead_request *req)
req->cryptlen -= authsize;
/* allocate extended descriptor */
- edesc = aead_edesc_alloc(req, 1);
+ edesc = aead_edesc_alloc(req, req->iv, 1);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
@@ -1257,9 +1332,7 @@ static int aead_decrypt(struct aead_request *req)
/* reset integrity check result bits */
edesc->desc.hdr_lo = 0;
- return ipsec_esp(edesc, req, NULL, 0,
- ipsec_esp_decrypt_hwauth_done);
-
+ return ipsec_esp(edesc, req, 0, ipsec_esp_decrypt_hwauth_done);
}
/* Have to check the ICV with software */
@@ -1268,7 +1341,8 @@ 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->dst_nents + 2 +
+ edesc->assoc_nents];
else
icvdata = &edesc->link_tbl[0];
@@ -1277,7 +1351,7 @@ static int aead_decrypt(struct aead_request *req)
memcpy(icvdata, (char *)sg_virt(sg) + sg->length - ctx->authsize,
ctx->authsize);
- return ipsec_esp(edesc, req, NULL, 0, ipsec_esp_decrypt_swauth_done);
+ return ipsec_esp(edesc, req, 0, ipsec_esp_decrypt_swauth_done);
}
static int aead_givencrypt(struct aead_givcrypt_request *req)
@@ -1288,7 +1362,7 @@ static int aead_givencrypt(struct aead_givcrypt_request *req)
struct talitos_edesc *edesc;
/* allocate extended descriptor */
- edesc = aead_edesc_alloc(areq, 0);
+ edesc = aead_edesc_alloc(areq, req->giv, 0);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
@@ -1299,8 +1373,7 @@ static int aead_givencrypt(struct aead_givcrypt_request *req)
/* avoid consecutive packets going out with same IV */
*(__be64 *)req->giv ^= cpu_to_be64(req->seq);
- return ipsec_esp(edesc, areq, req->giv, req->seq,
- ipsec_esp_encrypt_done);
+ return ipsec_esp(edesc, areq, req->seq, ipsec_esp_encrypt_done);
}
static int ablkcipher_setkey(struct crypto_ablkcipher *cipher,
@@ -1356,7 +1429,7 @@ static int common_nonsnoop(struct talitos_edesc *edesc,
struct device *dev = ctx->dev;
struct talitos_desc *desc = &edesc->desc;
unsigned int cryptlen = areq->nbytes;
- unsigned int ivsize;
+ unsigned int ivsize = crypto_ablkcipher_ivsize(cipher);
int sg_count, ret;
/* first DWORD empty */
@@ -1365,9 +1438,9 @@ static int common_nonsnoop(struct talitos_edesc *edesc,
desc->ptr[0].j_extent = 0;
/* cipher iv */
- ivsize = crypto_ablkcipher_ivsize(cipher);
- map_single_talitos_ptr(dev, &desc->ptr[1], ivsize, areq->info, 0,
- DMA_TO_DEVICE);
+ to_talitos_ptr(&desc->ptr[1], edesc->iv_dma);
+ desc->ptr[1].len = cpu_to_be16(ivsize);
+ desc->ptr[1].j_extent = 0;
/* cipher key */
map_single_talitos_ptr(dev, &desc->ptr[2], ctx->keylen,
@@ -1382,7 +1455,7 @@ static int common_nonsnoop(struct talitos_edesc *edesc,
sg_count = talitos_map_sg(dev, areq->src, edesc->src_nents ? : 1,
(areq->src == areq->dst) ? DMA_BIDIRECTIONAL
: DMA_TO_DEVICE,
- edesc->src_is_chained);
+ edesc->src_chained);
if (sg_count == 1) {
to_talitos_ptr(&desc->ptr[3], sg_dma_address(areq->src));
@@ -1409,8 +1482,7 @@ static int common_nonsnoop(struct talitos_edesc *edesc,
if (areq->src != areq->dst)
sg_count = talitos_map_sg(dev, areq->dst,
edesc->dst_nents ? : 1,
- DMA_FROM_DEVICE,
- edesc->dst_is_chained);
+ DMA_FROM_DEVICE, edesc->dst_chained);
if (sg_count == 1) {
to_talitos_ptr(&desc->ptr[4], sg_dma_address(areq->dst));
@@ -1450,9 +1522,11 @@ static struct talitos_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request *
{
struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq);
struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
+ unsigned int ivsize = crypto_ablkcipher_ivsize(cipher);
- return talitos_edesc_alloc(ctx->dev, areq->src, areq->dst, 0,
- areq->nbytes, 0, 0, areq->base.flags);
+ return talitos_edesc_alloc(ctx->dev, NULL, areq->src, areq->dst,
+ areq->info, 0, areq->nbytes, 0, ivsize, 0,
+ areq->base.flags);
}
static int ablkcipher_encrypt(struct ablkcipher_request *areq)
@@ -1578,8 +1652,7 @@ static int common_nonsnoop_hash(struct talitos_edesc *edesc,
sg_count = talitos_map_sg(dev, req_ctx->psrc,
edesc->src_nents ? : 1,
- DMA_TO_DEVICE,
- edesc->src_is_chained);
+ DMA_TO_DEVICE, edesc->src_chained);
if (sg_count == 1) {
to_talitos_ptr(&desc->ptr[3], sg_dma_address(req_ctx->psrc));
@@ -1631,8 +1704,8 @@ 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, req_ctx->psrc, NULL, 1,
- nbytes, 0, 0, areq->base.flags);
+ return talitos_edesc_alloc(ctx->dev, NULL, req_ctx->psrc, NULL, NULL, 0,
+ nbytes, 0, 0, 0, areq->base.flags);
}
static int ahash_init(struct ahash_request *areq)
@@ -1690,7 +1763,7 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
unsigned int nbytes_to_hash;
unsigned int to_hash_later;
unsigned int nsg;
- int chained;
+ bool chained;
if (!req_ctx->last && (nbytes + req_ctx->nbuf <= blocksize)) {
/* Buffer up to one whole block */
@@ -1902,21 +1975,18 @@ struct talitos_alg_template {
};
static struct talitos_alg_template driver_algs[] = {
- /* AEAD algorithms. These use a single-pass ipsec_esp descriptor */
+ /*
+ * AEAD algorithms. These use a single-pass ipsec_esp descriptor.
+ * authencesn(*,*) is also registered, although not present
+ * explicitly here.
+ */
{ .type = CRYPTO_ALG_TYPE_AEAD,
.alg.crypto = {
.cra_name = "authenc(hmac(sha1),cbc(aes))",
.cra_driver_name = "authenc-hmac-sha1-cbc-aes-talitos",
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_aead_type,
.cra_aead = {
- .setkey = aead_setkey,
- .setauthsize = aead_setauthsize,
- .encrypt = aead_encrypt,
- .decrypt = aead_decrypt,
- .givencrypt = aead_givencrypt,
- .geniv = "<built-in>",
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
}
@@ -1935,14 +2005,7 @@ static struct talitos_alg_template driver_algs[] = {
.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_type = &crypto_aead_type,
.cra_aead = {
- .setkey = aead_setkey,
- .setauthsize = aead_setauthsize,
- .encrypt = aead_encrypt,
- .decrypt = aead_decrypt,
- .givencrypt = aead_givencrypt,
- .geniv = "<built-in>",
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
}
@@ -1962,14 +2025,7 @@ static struct talitos_alg_template driver_algs[] = {
.cra_driver_name = "authenc-hmac-sha224-cbc-aes-talitos",
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_aead_type,
.cra_aead = {
- .setkey = aead_setkey,
- .setauthsize = aead_setauthsize,
- .encrypt = aead_encrypt,
- .decrypt = aead_decrypt,
- .givencrypt = aead_givencrypt,
- .geniv = "<built-in>",
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA224_DIGEST_SIZE,
}
@@ -1988,14 +2044,7 @@ static struct talitos_alg_template driver_algs[] = {
.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_type = &crypto_aead_type,
.cra_aead = {
- .setkey = aead_setkey,
- .setauthsize = aead_setauthsize,
- .encrypt = aead_encrypt,
- .decrypt = aead_decrypt,
- .givencrypt = aead_givencrypt,
- .geniv = "<built-in>",
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA224_DIGEST_SIZE,
}
@@ -2015,14 +2064,7 @@ static struct talitos_alg_template driver_algs[] = {
.cra_driver_name = "authenc-hmac-sha256-cbc-aes-talitos",
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_aead_type,
.cra_aead = {
- .setkey = aead_setkey,
- .setauthsize = aead_setauthsize,
- .encrypt = aead_encrypt,
- .decrypt = aead_decrypt,
- .givencrypt = aead_givencrypt,
- .geniv = "<built-in>",
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
}
@@ -2041,14 +2083,7 @@ static struct talitos_alg_template driver_algs[] = {
.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_type = &crypto_aead_type,
.cra_aead = {
- .setkey = aead_setkey,
- .setauthsize = aead_setauthsize,
- .encrypt = aead_encrypt,
- .decrypt = aead_decrypt,
- .givencrypt = aead_givencrypt,
- .geniv = "<built-in>",
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
}
@@ -2068,14 +2103,7 @@ static struct talitos_alg_template driver_algs[] = {
.cra_driver_name = "authenc-hmac-sha384-cbc-aes-talitos",
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_aead_type,
.cra_aead = {
- .setkey = aead_setkey,
- .setauthsize = aead_setauthsize,
- .encrypt = aead_encrypt,
- .decrypt = aead_decrypt,
- .givencrypt = aead_givencrypt,
- .geniv = "<built-in>",
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA384_DIGEST_SIZE,
}
@@ -2094,14 +2122,7 @@ static struct talitos_alg_template driver_algs[] = {
.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_type = &crypto_aead_type,
.cra_aead = {
- .setkey = aead_setkey,
- .setauthsize = aead_setauthsize,
- .encrypt = aead_encrypt,
- .decrypt = aead_decrypt,
- .givencrypt = aead_givencrypt,
- .geniv = "<built-in>",
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA384_DIGEST_SIZE,
}
@@ -2121,14 +2142,7 @@ static struct talitos_alg_template driver_algs[] = {
.cra_driver_name = "authenc-hmac-sha512-cbc-aes-talitos",
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_aead_type,
.cra_aead = {
- .setkey = aead_setkey,
- .setauthsize = aead_setauthsize,
- .encrypt = aead_encrypt,
- .decrypt = aead_decrypt,
- .givencrypt = aead_givencrypt,
- .geniv = "<built-in>",
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
}
@@ -2147,14 +2161,7 @@ static struct talitos_alg_template driver_algs[] = {
.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_type = &crypto_aead_type,
.cra_aead = {
- .setkey = aead_setkey,
- .setauthsize = aead_setauthsize,
- .encrypt = aead_encrypt,
- .decrypt = aead_decrypt,
- .givencrypt = aead_givencrypt,
- .geniv = "<built-in>",
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
}
@@ -2174,14 +2181,7 @@ static struct talitos_alg_template driver_algs[] = {
.cra_driver_name = "authenc-hmac-md5-cbc-aes-talitos",
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_aead_type,
.cra_aead = {
- .setkey = aead_setkey,
- .setauthsize = aead_setauthsize,
- .encrypt = aead_encrypt,
- .decrypt = aead_decrypt,
- .givencrypt = aead_givencrypt,
- .geniv = "<built-in>",
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = MD5_DIGEST_SIZE,
}
@@ -2200,14 +2200,7 @@ static struct talitos_alg_template driver_algs[] = {
.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_type = &crypto_aead_type,
.cra_aead = {
- .setkey = aead_setkey,
- .setauthsize = aead_setauthsize,
- .encrypt = aead_encrypt,
- .decrypt = aead_decrypt,
- .givencrypt = aead_givencrypt,
- .geniv = "<built-in>",
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = MD5_DIGEST_SIZE,
}
@@ -2229,12 +2222,7 @@ static struct talitos_alg_template driver_algs[] = {
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_ablkcipher_type,
.cra_ablkcipher = {
- .setkey = ablkcipher_setkey,
- .encrypt = ablkcipher_encrypt,
- .decrypt = ablkcipher_decrypt,
- .geniv = "eseqiv",
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
@@ -2251,12 +2239,7 @@ static struct talitos_alg_template driver_algs[] = {
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_ablkcipher_type,
.cra_ablkcipher = {
- .setkey = ablkcipher_setkey,
- .encrypt = ablkcipher_encrypt,
- .decrypt = ablkcipher_decrypt,
- .geniv = "eseqiv",
.min_keysize = DES3_EDE_KEY_SIZE,
.max_keysize = DES3_EDE_KEY_SIZE,
.ivsize = DES3_EDE_BLOCK_SIZE,
@@ -2270,11 +2253,6 @@ static struct talitos_alg_template driver_algs[] = {
/* AHASH algorithms. */
{ .type = CRYPTO_ALG_TYPE_AHASH,
.alg.hash = {
- .init = ahash_init,
- .update = ahash_update,
- .final = ahash_final,
- .finup = ahash_finup,
- .digest = ahash_digest,
.halg.digestsize = MD5_DIGEST_SIZE,
.halg.base = {
.cra_name = "md5",
@@ -2282,7 +2260,6 @@ static struct talitos_alg_template driver_algs[] = {
.cra_blocksize = MD5_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AHASH |
CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_ahash_type
}
},
.desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
@@ -2291,11 +2268,6 @@ static struct talitos_alg_template driver_algs[] = {
},
{ .type = CRYPTO_ALG_TYPE_AHASH,
.alg.hash = {
- .init = ahash_init,
- .update = ahash_update,
- .final = ahash_final,
- .finup = ahash_finup,
- .digest = ahash_digest,
.halg.digestsize = SHA1_DIGEST_SIZE,
.halg.base = {
.cra_name = "sha1",
@@ -2303,7 +2275,6 @@ static struct talitos_alg_template driver_algs[] = {
.cra_blocksize = SHA1_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AHASH |
CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_ahash_type
}
},
.desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
@@ -2312,11 +2283,6 @@ static struct talitos_alg_template driver_algs[] = {
},
{ .type = CRYPTO_ALG_TYPE_AHASH,
.alg.hash = {
- .init = ahash_init,
- .update = ahash_update,
- .final = ahash_final,
- .finup = ahash_finup,
- .digest = ahash_digest,
.halg.digestsize = SHA224_DIGEST_SIZE,
.halg.base = {
.cra_name = "sha224",
@@ -2324,7 +2290,6 @@ static struct talitos_alg_template driver_algs[] = {
.cra_blocksize = SHA224_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AHASH |
CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_ahash_type
}
},
.desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
@@ -2333,11 +2298,6 @@ static struct talitos_alg_template driver_algs[] = {
},
{ .type = CRYPTO_ALG_TYPE_AHASH,
.alg.hash = {
- .init = ahash_init,
- .update = ahash_update,
- .final = ahash_final,
- .finup = ahash_finup,
- .digest = ahash_digest,
.halg.digestsize = SHA256_DIGEST_SIZE,
.halg.base = {
.cra_name = "sha256",
@@ -2345,7 +2305,6 @@ static struct talitos_alg_template driver_algs[] = {
.cra_blocksize = SHA256_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AHASH |
CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_ahash_type
}
},
.desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
@@ -2354,11 +2313,6 @@ static struct talitos_alg_template driver_algs[] = {
},
{ .type = CRYPTO_ALG_TYPE_AHASH,
.alg.hash = {
- .init = ahash_init,
- .update = ahash_update,
- .final = ahash_final,
- .finup = ahash_finup,
- .digest = ahash_digest,
.halg.digestsize = SHA384_DIGEST_SIZE,
.halg.base = {
.cra_name = "sha384",
@@ -2366,7 +2320,6 @@ static struct talitos_alg_template driver_algs[] = {
.cra_blocksize = SHA384_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AHASH |
CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_ahash_type
}
},
.desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
@@ -2375,11 +2328,6 @@ static struct talitos_alg_template driver_algs[] = {
},
{ .type = CRYPTO_ALG_TYPE_AHASH,
.alg.hash = {
- .init = ahash_init,
- .update = ahash_update,
- .final = ahash_final,
- .finup = ahash_finup,
- .digest = ahash_digest,
.halg.digestsize = SHA512_DIGEST_SIZE,
.halg.base = {
.cra_name = "sha512",
@@ -2387,7 +2335,6 @@ static struct talitos_alg_template driver_algs[] = {
.cra_blocksize = SHA512_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AHASH |
CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_ahash_type
}
},
.desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
@@ -2396,12 +2343,6 @@ static struct talitos_alg_template driver_algs[] = {
},
{ .type = CRYPTO_ALG_TYPE_AHASH,
.alg.hash = {
- .init = ahash_init,
- .update = ahash_update,
- .final = ahash_final,
- .finup = ahash_finup,
- .digest = ahash_digest,
- .setkey = ahash_setkey,
.halg.digestsize = MD5_DIGEST_SIZE,
.halg.base = {
.cra_name = "hmac(md5)",
@@ -2409,7 +2350,6 @@ static struct talitos_alg_template driver_algs[] = {
.cra_blocksize = MD5_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AHASH |
CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_ahash_type
}
},
.desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
@@ -2418,12 +2358,6 @@ static struct talitos_alg_template driver_algs[] = {
},
{ .type = CRYPTO_ALG_TYPE_AHASH,
.alg.hash = {
- .init = ahash_init,
- .update = ahash_update,
- .final = ahash_final,
- .finup = ahash_finup,
- .digest = ahash_digest,
- .setkey = ahash_setkey,
.halg.digestsize = SHA1_DIGEST_SIZE,
.halg.base = {
.cra_name = "hmac(sha1)",
@@ -2431,7 +2365,6 @@ static struct talitos_alg_template driver_algs[] = {
.cra_blocksize = SHA1_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AHASH |
CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_ahash_type
}
},
.desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
@@ -2440,12 +2373,6 @@ static struct talitos_alg_template driver_algs[] = {
},
{ .type = CRYPTO_ALG_TYPE_AHASH,
.alg.hash = {
- .init = ahash_init,
- .update = ahash_update,
- .final = ahash_final,
- .finup = ahash_finup,
- .digest = ahash_digest,
- .setkey = ahash_setkey,
.halg.digestsize = SHA224_DIGEST_SIZE,
.halg.base = {
.cra_name = "hmac(sha224)",
@@ -2453,7 +2380,6 @@ static struct talitos_alg_template driver_algs[] = {
.cra_blocksize = SHA224_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AHASH |
CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_ahash_type
}
},
.desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
@@ -2462,12 +2388,6 @@ static struct talitos_alg_template driver_algs[] = {
},
{ .type = CRYPTO_ALG_TYPE_AHASH,
.alg.hash = {
- .init = ahash_init,
- .update = ahash_update,
- .final = ahash_final,
- .finup = ahash_finup,
- .digest = ahash_digest,
- .setkey = ahash_setkey,
.halg.digestsize = SHA256_DIGEST_SIZE,
.halg.base = {
.cra_name = "hmac(sha256)",
@@ -2475,7 +2395,6 @@ static struct talitos_alg_template driver_algs[] = {
.cra_blocksize = SHA256_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AHASH |
CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_ahash_type
}
},
.desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
@@ -2484,12 +2403,6 @@ static struct talitos_alg_template driver_algs[] = {
},
{ .type = CRYPTO_ALG_TYPE_AHASH,
.alg.hash = {
- .init = ahash_init,
- .update = ahash_update,
- .final = ahash_final,
- .finup = ahash_finup,
- .digest = ahash_digest,
- .setkey = ahash_setkey,
.halg.digestsize = SHA384_DIGEST_SIZE,
.halg.base = {
.cra_name = "hmac(sha384)",
@@ -2497,7 +2410,6 @@ static struct talitos_alg_template driver_algs[] = {
.cra_blocksize = SHA384_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AHASH |
CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_ahash_type
}
},
.desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
@@ -2506,12 +2418,6 @@ static struct talitos_alg_template driver_algs[] = {
},
{ .type = CRYPTO_ALG_TYPE_AHASH,
.alg.hash = {
- .init = ahash_init,
- .update = ahash_update,
- .final = ahash_final,
- .finup = ahash_finup,
- .digest = ahash_digest,
- .setkey = ahash_setkey,
.halg.digestsize = SHA512_DIGEST_SIZE,
.halg.base = {
.cra_name = "hmac(sha512)",
@@ -2519,7 +2425,6 @@ static struct talitos_alg_template driver_algs[] = {
.cra_blocksize = SHA512_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_AHASH |
CRYPTO_ALG_ASYNC,
- .cra_type = &crypto_ahash_type
}
},
.desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
@@ -2677,14 +2582,34 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
case CRYPTO_ALG_TYPE_ABLKCIPHER:
alg = &t_alg->algt.alg.crypto;
alg->cra_init = talitos_cra_init;
+ alg->cra_type = &crypto_ablkcipher_type;
+ alg->cra_ablkcipher.setkey = ablkcipher_setkey;
+ alg->cra_ablkcipher.encrypt = ablkcipher_encrypt;
+ alg->cra_ablkcipher.decrypt = ablkcipher_decrypt;
+ 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>";
break;
case CRYPTO_ALG_TYPE_AHASH:
alg = &t_alg->algt.alg.hash.halg.base;
alg->cra_init = talitos_cra_init_ahash;
+ alg->cra_type = &crypto_ahash_type;
+ t_alg->algt.alg.hash.init = ahash_init;
+ t_alg->algt.alg.hash.update = ahash_update;
+ t_alg->algt.alg.hash.final = ahash_final;
+ t_alg->algt.alg.hash.finup = ahash_finup;
+ t_alg->algt.alg.hash.digest = ahash_digest;
+ t_alg->algt.alg.hash.setkey = ahash_setkey;
+
if (!(priv->features & TALITOS_FTR_HMAC_OK) &&
!strncmp(alg->cra_name, "hmac", 4)) {
kfree(t_alg);
@@ -2896,7 +2821,9 @@ static int talitos_probe(struct platform_device *ofdev)
if (hw_supports(dev, driver_algs[i].desc_hdr_template)) {
struct talitos_crypto_alg *t_alg;
char *name = NULL;
+ bool authenc = false;
+authencesn:
t_alg = talitos_alg_alloc(dev, &driver_algs[i]);
if (IS_ERR(t_alg)) {
err = PTR_ERR(t_alg);
@@ -2911,6 +2838,8 @@ static int talitos_probe(struct platform_device *ofdev)
err = crypto_register_alg(
&t_alg->algt.alg.crypto);
name = t_alg->algt.alg.crypto.cra_driver_name;
+ authenc = authenc ? !authenc :
+ !(bool)memcmp(name, "authenc", 7);
break;
case CRYPTO_ALG_TYPE_AHASH:
err = crypto_register_ahash(
@@ -2923,8 +2852,25 @@ static int talitos_probe(struct platform_device *ofdev)
dev_err(dev, "%s alg registration failed\n",
name);
kfree(t_alg);
- } else
+ } else {
list_add_tail(&t_alg->entry, &priv->alg_list);
+ if (authenc) {
+ struct crypto_alg *alg =
+ &driver_algs[i].alg.crypto;
+
+ name = alg->cra_name;
+ memmove(name + 10, name + 7,
+ strlen(name) - 7);
+ memcpy(name + 7, "esn", 3);
+
+ name = alg->cra_driver_name;
+ memmove(name + 10, name + 7,
+ strlen(name) - 7);
+ memcpy(name + 7, "esn", 3);
+
+ goto authencesn;
+ }
+ }
}
}
if (!list_empty(&priv->alg_list))
OpenPOWER on IntegriCloud