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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 2015-07-30 17:53:22 +08:00
Родитель e19ab1211d
Коммит aeb4c132f3
1 изменённых файлов: 276 добавлений и 328 удалений
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504
drivers/crypto/talitos.c
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@ -799,7 +799,6 @@ struct talitos_ctx {
unsigned int keylen;
unsigned int enckeylen;
unsigned int authkeylen;
unsigned int authsize;
};
#define HASH_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE
@ -819,16 +818,6 @@ struct talitos_ahash_req_ctx {
struct scatterlist *psrc;
};
static int aead_setauthsize(struct crypto_aead *authenc,
unsigned int authsize)
{
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
ctx->authsize = authsize;
return 0;
}
static int aead_setkey(struct crypto_aead *authenc,
const u8 *key, unsigned int keylen)
{
@ -857,12 +846,11 @@ 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
* @icv_ool: whether ICV is out-of-line
* @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/buf
@ -875,12 +863,11 @@ badkey:
* of link_tbl data
*/
struct talitos_edesc {
int assoc_nents;
int src_nents;
int dst_nents;
bool assoc_chained;
bool src_chained;
bool dst_chained;
bool icv_ool;
dma_addr_t iv_dma;
int dma_len;
dma_addr_t dma_link_tbl;
@ -952,14 +939,6 @@ 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);
if (edesc->assoc_chained)
talitos_unmap_sg_chain(dev, areq->assoc, DMA_TO_DEVICE);
else if (areq->assoclen)
/* 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);
if (edesc->dma_len)
@ -976,7 +955,7 @@ static void ipsec_esp_encrypt_done(struct device *dev,
{
struct aead_request *areq = context;
struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
unsigned int authsize = crypto_aead_authsize(authenc);
struct talitos_edesc *edesc;
struct scatterlist *sg;
void *icvdata;
@ -986,13 +965,12 @@ static void ipsec_esp_encrypt_done(struct device *dev,
ipsec_esp_unmap(dev, edesc, areq);
/* copy the generated ICV to dst */
if (edesc->dst_nents) {
if (edesc->icv_ool) {
icvdata = &edesc->link_tbl[edesc->src_nents +
edesc->dst_nents + 2 +
edesc->assoc_nents];
edesc->dst_nents + 2];
sg = sg_last(areq->dst, edesc->dst_nents);
memcpy((char *)sg_virt(sg) + sg->length - ctx->authsize,
icvdata, ctx->authsize);
memcpy((char *)sg_virt(sg) + sg->length - authsize,
icvdata, authsize);
}
kfree(edesc);
@ -1006,10 +984,10 @@ static void ipsec_esp_decrypt_swauth_done(struct device *dev,
{
struct aead_request *req = context;
struct crypto_aead *authenc = crypto_aead_reqtfm(req);
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
unsigned int authsize = crypto_aead_authsize(authenc);
struct talitos_edesc *edesc;
struct scatterlist *sg;
void *icvdata;
char *oicv, *icv;
edesc = container_of(desc, struct talitos_edesc, desc);
@ -1017,16 +995,18 @@ static void ipsec_esp_decrypt_swauth_done(struct device *dev,
if (!err) {
/* auth check */
if (edesc->dma_len)
icvdata = &edesc->link_tbl[edesc->src_nents +
edesc->dst_nents + 2 +
edesc->assoc_nents];
else
icvdata = &edesc->link_tbl[0];
sg = sg_last(req->dst, edesc->dst_nents ? : 1);
err = memcmp(icvdata, (char *)sg_virt(sg) + sg->length -
ctx->authsize, ctx->authsize) ? -EBADMSG : 0;
icv = (char *)sg_virt(sg) + sg->length - authsize;
if (edesc->dma_len) {
oicv = (char *)&edesc->link_tbl[edesc->src_nents +
edesc->dst_nents + 2];
if (edesc->icv_ool)
icv = oicv + authsize;
} else
oicv = (char *)&edesc->link_tbl[0];
err = memcmp(oicv, icv, authsize) ? -EBADMSG : 0;
}
kfree(edesc);
@ -1059,53 +1039,69 @@ static void ipsec_esp_decrypt_hwauth_done(struct device *dev,
* convert scatterlist to SEC h/w link table format
* stop at cryptlen bytes
*/
static int sg_to_link_tbl(struct scatterlist *sg, int sg_count,
int cryptlen, struct talitos_ptr *link_tbl_ptr)
static int sg_to_link_tbl_offset(struct scatterlist *sg, int sg_count,
unsigned int offset, int cryptlen,
struct talitos_ptr *link_tbl_ptr)
{
int n_sg = sg_count;
int count = 0;
while (sg && n_sg--) {
to_talitos_ptr(link_tbl_ptr, sg_dma_address(sg), 0);
link_tbl_ptr->len = cpu_to_be16(sg_dma_len(sg));
link_tbl_ptr->j_extent = 0;
link_tbl_ptr++;
cryptlen -= sg_dma_len(sg);
while (cryptlen && sg && n_sg--) {
unsigned int len = sg_dma_len(sg);
if (offset >= len) {
offset -= len;
goto next;
}
len -= offset;
if (len > cryptlen)
len = cryptlen;
to_talitos_ptr(link_tbl_ptr + count,
sg_dma_address(sg) + offset, 0);
link_tbl_ptr[count].len = cpu_to_be16(len);
link_tbl_ptr[count].j_extent = 0;
count++;
cryptlen -= len;
offset = 0;
next:
sg = sg_next(sg);
}
/* adjust (decrease) last one (or two) entry's len to cryptlen */
link_tbl_ptr--;
while (be16_to_cpu(link_tbl_ptr->len) <= (-cryptlen)) {
/* Empty this entry, and move to previous one */
cryptlen += be16_to_cpu(link_tbl_ptr->len);
link_tbl_ptr->len = 0;
sg_count--;
link_tbl_ptr--;
}
link_tbl_ptr->len = cpu_to_be16(be16_to_cpu(link_tbl_ptr->len)
+ cryptlen);
/* tag end of link table */
link_tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN;
if (count > 0)
link_tbl_ptr[count - 1].j_extent = DESC_PTR_LNKTBL_RETURN;
return sg_count;
return count;
}
static inline int sg_to_link_tbl(struct scatterlist *sg, int sg_count,
int cryptlen,
struct talitos_ptr *link_tbl_ptr)
{
return sg_to_link_tbl_offset(sg, sg_count, 0, cryptlen,
link_tbl_ptr);
}
/*
* fill in and submit ipsec_esp descriptor
*/
static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
u64 seq, void (*callback) (struct device *dev,
void (*callback)(struct device *dev,
struct talitos_desc *desc,
void *context, int error))
{
struct crypto_aead *aead = crypto_aead_reqtfm(areq);
unsigned int authsize = crypto_aead_authsize(aead);
struct talitos_ctx *ctx = crypto_aead_ctx(aead);
struct device *dev = ctx->dev;
struct talitos_desc *desc = &edesc->desc;
unsigned int cryptlen = areq->cryptlen;
unsigned int authsize = ctx->authsize;
unsigned int ivsize = crypto_aead_ivsize(aead);
int tbl_off = 0;
int sg_count, ret;
int sg_link_tbl_len;
@ -1113,36 +1109,27 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
map_single_talitos_ptr(dev, &desc->ptr[0], ctx->authkeylen, &ctx->key,
DMA_TO_DEVICE);
sg_count = talitos_map_sg(dev, areq->src, edesc->src_nents ?: 1,
(areq->src == areq->dst) ? DMA_BIDIRECTIONAL
: DMA_TO_DEVICE,
edesc->src_chained);
/* hmac data */
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];
desc->ptr[1].len = cpu_to_be16(areq->assoclen);
if (sg_count > 1 &&
(ret = sg_to_link_tbl_offset(areq->src, sg_count, 0,
areq->assoclen,
&edesc->link_tbl[tbl_off])) > 1) {
tbl_off += ret;
to_talitos_ptr(&desc->ptr[1], edesc->dma_link_tbl + tbl_off *
sizeof(struct talitos_ptr), 0);
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, 0);
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 {
if (areq->assoclen)
to_talitos_ptr(&desc->ptr[1],
sg_dma_address(areq->assoc), 0);
else
to_talitos_ptr(&desc->ptr[1], edesc->iv_dma, 0);
to_talitos_ptr(&desc->ptr[1], sg_dma_address(areq->src), 0);
desc->ptr[1].j_extent = 0;
}
@ -1150,8 +1137,6 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
to_talitos_ptr(&desc->ptr[2], edesc->iv_dma, 0);
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,
@ -1167,33 +1152,24 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
desc->ptr[4].len = cpu_to_be16(cryptlen);
desc->ptr[4].j_extent = authsize;
sg_count = talitos_map_sg(dev, areq->src, edesc->src_nents ? : 1,
(areq->src == areq->dst) ? DMA_BIDIRECTIONAL
: DMA_TO_DEVICE,
edesc->src_chained);
if (sg_count == 1) {
to_talitos_ptr(&desc->ptr[4], sg_dma_address(areq->src), 0);
} else {
sg_link_tbl_len = cryptlen;
if (edesc->desc.hdr & DESC_HDR_MODE1_MDEU_CICV)
sg_link_tbl_len = cryptlen + authsize;
sg_link_tbl_len += authsize;
sg_count = sg_to_link_tbl(areq->src, sg_count, sg_link_tbl_len,
&edesc->link_tbl[0]);
if (sg_count > 1) {
if (sg_count > 1 &&
(ret = sg_to_link_tbl_offset(areq->src, sg_count, areq->assoclen,
sg_link_tbl_len,
&edesc->link_tbl[tbl_off])) > 1) {
tbl_off += ret;
desc->ptr[4].j_extent |= DESC_PTR_LNKTBL_JUMP;
to_talitos_ptr(&desc->ptr[4], edesc->dma_link_tbl, 0);
to_talitos_ptr(&desc->ptr[4], edesc->dma_link_tbl +
tbl_off *
sizeof(struct talitos_ptr), 0);
dma_sync_single_for_device(dev, edesc->dma_link_tbl,
edesc->dma_len,
DMA_BIDIRECTIONAL);
} else {
/* Only one segment now, so no link tbl needed */
to_talitos_ptr(&desc->ptr[4],
sg_dma_address(areq->src), 0);
}
}
} else
to_talitos_ptr(&desc->ptr[4], sg_dma_address(areq->src), 0);
/* cipher out */
desc->ptr[5].len = cpu_to_be16(cryptlen);
@ -1204,16 +1180,17 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
edesc->dst_nents ? : 1,
DMA_FROM_DEVICE, edesc->dst_chained);
if (sg_count == 1) {
to_talitos_ptr(&desc->ptr[5], sg_dma_address(areq->dst), 0);
} else {
int tbl_off = edesc->src_nents + 1;
edesc->icv_ool = false;
if (sg_count > 1 &&
(sg_count = sg_to_link_tbl_offset(areq->dst, sg_count,
areq->assoclen, cryptlen,
&edesc->link_tbl[tbl_off])) >
1) {
struct talitos_ptr *tbl_ptr = &edesc->link_tbl[tbl_off];
to_talitos_ptr(&desc->ptr[5], edesc->dma_link_tbl +
tbl_off * sizeof(struct talitos_ptr), 0);
sg_count = sg_to_link_tbl(areq->dst, sg_count, cryptlen,
tbl_ptr);
/* Add an entry to the link table for ICV data */
tbl_ptr += sg_count - 1;
@ -1224,13 +1201,16 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
/* icv data follows link tables */
to_talitos_ptr(tbl_ptr, edesc->dma_link_tbl +
(tbl_off + edesc->dst_nents + 1 +
edesc->assoc_nents) *
sizeof(struct talitos_ptr), 0);
(edesc->src_nents + edesc->dst_nents +
2) * sizeof(struct talitos_ptr) +
authsize, 0);
desc->ptr[5].j_extent |= DESC_PTR_LNKTBL_JUMP;
dma_sync_single_for_device(ctx->dev, edesc->dma_link_tbl,
edesc->dma_len, DMA_BIDIRECTIONAL);
}
edesc->icv_ool = true;
} else
to_talitos_ptr(&desc->ptr[5], sg_dma_address(areq->dst), 0);
/* iv out */
map_single_talitos_ptr(dev, &desc->ptr[6], ivsize, ctx->iv,
@ -1268,7 +1248,6 @@ static int sg_count(struct scatterlist *sg_list, int nbytes, bool *chained)
* 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,
u8 *iv,
@ -1281,8 +1260,8 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
bool encrypt)
{
struct talitos_edesc *edesc;
int assoc_nents = 0, src_nents, dst_nents, alloc_len, dma_len;
bool assoc_chained = false, src_chained = false, dst_chained = false;
int src_nents, dst_nents, alloc_len, dma_len;
bool 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;
@ -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);