diff options
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/nx/nx-sha256.c | 208 | ||||
| -rw-r--r-- | drivers/crypto/nx/nx-sha512.c | 222 |
2 files changed, 200 insertions, 230 deletions
diff --git a/drivers/crypto/nx/nx-sha256.c b/drivers/crypto/nx/nx-sha256.c index da0b24a7633f..23621da624c3 100644 --- a/drivers/crypto/nx/nx-sha256.c +++ b/drivers/crypto/nx/nx-sha256.c @@ -23,6 +23,7 @@ #include <crypto/sha.h> #include <linux/module.h> #include <asm/vio.h> +#include <asm/byteorder.h> #include "nx_csbcpb.h" #include "nx.h" @@ -32,7 +33,8 @@ static int nx_sha256_init(struct shash_desc *desc) { struct sha256_state *sctx = shash_desc_ctx(desc); struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base); - struct nx_sg *out_sg; + int len; + int rc; nx_ctx_init(nx_ctx, HCOP_FC_SHA); @@ -41,10 +43,28 @@ static int nx_sha256_init(struct shash_desc *desc) nx_ctx->ap = &nx_ctx->props[NX_PROPS_SHA256]; NX_CPB_SET_DIGEST_SIZE(nx_ctx->csbcpb, NX_DS_SHA256); - out_sg = nx_build_sg_list(nx_ctx->out_sg, (u8 *)sctx->state, - SHA256_DIGEST_SIZE, nx_ctx->ap->sglen); - nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg); + len = SHA256_DIGEST_SIZE; + rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->out_sg, + &nx_ctx->op.outlen, + &len, + (u8 *) sctx->state, + NX_DS_SHA256); + + if (rc) + goto out; + + sctx->state[0] = __cpu_to_be32(SHA256_H0); + sctx->state[1] = __cpu_to_be32(SHA256_H1); + sctx->state[2] = __cpu_to_be32(SHA256_H2); + sctx->state[3] = __cpu_to_be32(SHA256_H3); + sctx->state[4] = __cpu_to_be32(SHA256_H4); + sctx->state[5] = __cpu_to_be32(SHA256_H5); + sctx->state[6] = __cpu_to_be32(SHA256_H6); + sctx->state[7] = __cpu_to_be32(SHA256_H7); + sctx->count = 0; + +out: return 0; } @@ -54,11 +74,11 @@ static int nx_sha256_update(struct shash_desc *desc, const u8 *data, struct sha256_state *sctx = shash_desc_ctx(desc); struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base); struct nx_csbcpb *csbcpb = (struct nx_csbcpb *)nx_ctx->csbcpb; - struct nx_sg *in_sg; - u64 to_process, leftover, total; - u32 max_sg_len; + u64 to_process = 0, leftover, total; unsigned long irq_flags; int rc = 0; + int data_len; + u64 buf_len = (sctx->count % SHA256_BLOCK_SIZE); spin_lock_irqsave(&nx_ctx->lock, irq_flags); @@ -66,16 +86,16 @@ static int nx_sha256_update(struct shash_desc *desc, const u8 *data, * 1: < SHA256_BLOCK_SIZE: copy into state, return 0 * 2: >= SHA256_BLOCK_SIZE: process X blocks, copy in leftover */ - total = sctx->count + len; + total = (sctx->count % SHA256_BLOCK_SIZE) + len; if (total < SHA256_BLOCK_SIZE) { - memcpy(sctx->buf + sctx->count, data, len); + memcpy(sctx->buf + buf_len, data, len); sctx->count += len; goto out; } - in_sg = nx_ctx->in_sg; - max_sg_len = min_t(u32, nx_driver.of.max_sg_len/sizeof(struct nx_sg), - nx_ctx->ap->sglen); + memcpy(csbcpb->cpb.sha256.message_digest, sctx->state, SHA256_DIGEST_SIZE); + NX_CPB_FDM(csbcpb) |= NX_FDM_INTERMEDIATE; + NX_CPB_FDM(csbcpb) |= NX_FDM_CONTINUATION; do { /* @@ -83,34 +103,42 @@ static int nx_sha256_update(struct shash_desc *desc, const u8 *data, * this update. This value is also restricted by the sg list * limits. */ - to_process = min_t(u64, total, nx_ctx->ap->databytelen); - to_process = min_t(u64, to_process, - NX_PAGE_SIZE * (max_sg_len - 1)); + to_process = total - to_process; to_process = to_process & ~(SHA256_BLOCK_SIZE - 1); - leftover = total - to_process; - if (sctx->count) { - in_sg = nx_build_sg_list(nx_ctx->in_sg, - (u8 *) sctx->buf, - sctx->count, max_sg_len); + if (buf_len) { + data_len = buf_len; + rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->in_sg, + &nx_ctx->op.inlen, + &data_len, + (u8 *) sctx->buf, + NX_DS_SHA256); + + if (rc || data_len != buf_len) + goto out; } - in_sg = nx_build_sg_list(in_sg, (u8 *) data, - to_process - sctx->count, - max_sg_len); - nx_ctx->op.inlen = (nx_ctx->in_sg - in_sg) * - sizeof(struct nx_sg); - - if (NX_CPB_FDM(csbcpb) & NX_FDM_CONTINUATION) { - /* - * we've hit the nx chip previously and we're updating - * again, so copy over the partial digest. - */ - memcpy(csbcpb->cpb.sha256.input_partial_digest, + + data_len = to_process - buf_len; + rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->in_sg, + &nx_ctx->op.inlen, + &data_len, + (u8 *) data, + NX_DS_SHA256); + + if (rc) + goto out; + + to_process = (data_len + buf_len); + leftover = total - to_process; + + /* + * we've hit the nx chip previously and we're updating + * again, so copy over the partial digest. + */ + memcpy(csbcpb->cpb.sha256.input_partial_digest, csbcpb->cpb.sha256.message_digest, SHA256_DIGEST_SIZE); - } - NX_CPB_FDM(csbcpb) |= NX_FDM_INTERMEDIATE; if (!nx_ctx->op.inlen || !nx_ctx->op.outlen) { rc = -EINVAL; goto out; @@ -122,22 +150,19 @@ static int nx_sha256_update(struct shash_desc *desc, const u8 *data, goto out; atomic_inc(&(nx_ctx->stats->sha256_ops)); - csbcpb->cpb.sha256.message_bit_length += (u64) - (csbcpb->cpb.sha256.spbc * 8); - - /* everything after the first update is continuation */ - NX_CPB_FDM(csbcpb) |= NX_FDM_CONTINUATION; total -= to_process; - data += to_process - sctx->count; - sctx->count = 0; - in_sg = nx_ctx->in_sg; + data += to_process - buf_len; + buf_len = 0; + } while (leftover >= SHA256_BLOCK_SIZE); /* copy the leftover back into the state struct */ if (leftover) memcpy(sctx->buf, data, leftover); - sctx->count = leftover; + + sctx->count += len; + memcpy(sctx->state, csbcpb->cpb.sha256.message_digest, SHA256_DIGEST_SIZE); out: spin_unlock_irqrestore(&nx_ctx->lock, irq_flags); return rc; @@ -148,34 +173,46 @@ static int nx_sha256_final(struct shash_desc *desc, u8 *out) struct sha256_state *sctx = shash_desc_ctx(desc); struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base); struct nx_csbcpb *csbcpb = (struct nx_csbcpb *)nx_ctx->csbcpb; - struct nx_sg *in_sg, *out_sg; - u32 max_sg_len; unsigned long irq_flags; int rc; + int len; spin_lock_irqsave(&nx_ctx->lock, irq_flags); - max_sg_len = min_t(u32, nx_driver.of.max_sg_len, nx_ctx->ap->sglen); - - if (NX_CPB_FDM(csbcpb) & NX_FDM_CONTINUATION) { + /* final is represented by continuing the operation and indicating that + * this is not an intermediate operation */ + if (sctx->count >= SHA256_BLOCK_SIZE) { /* we've hit the nx chip previously, now we're finalizing, * so copy over the partial digest */ - memcpy(csbcpb->cpb.sha256.input_partial_digest, - csbcpb->cpb.sha256.message_digest, SHA256_DIGEST_SIZE); + memcpy(csbcpb->cpb.sha256.input_partial_digest, sctx->state, SHA256_DIGEST_SIZE); + NX_CPB_FDM(csbcpb) &= ~NX_FDM_INTERMEDIATE; + NX_CPB_FDM(csbcpb) |= NX_FDM_CONTINUATION; + } else { + NX_CPB_FDM(csbcpb) &= ~NX_FDM_INTERMEDIATE; + NX_CPB_FDM(csbcpb) &= ~NX_FDM_CONTINUATION; } - /* final is represented by continuing the operation and indicating that - * this is not an intermediate operation */ - NX_CPB_FDM(csbcpb) &= ~NX_FDM_INTERMEDIATE; + csbcpb->cpb.sha256.message_bit_length = (u64) (sctx->count * 8); - csbcpb->cpb.sha256.message_bit_length += (u64)(sctx->count * 8); + len = sctx->count & (SHA256_BLOCK_SIZE - 1); + rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->in_sg, + &nx_ctx->op.inlen, + &len, + (u8 *) sctx->buf, + NX_DS_SHA256); - in_sg = nx_build_sg_list(nx_ctx->in_sg, (u8 *)sctx->buf, - sctx->count, max_sg_len); - out_sg = nx_build_sg_list(nx_ctx->out_sg, out, SHA256_DIGEST_SIZE, - max_sg_len); - nx_ctx->op.inlen = (nx_ctx->in_sg - in_sg) * sizeof(struct nx_sg); - nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg); + if (rc || len != (sctx->count & (SHA256_BLOCK_SIZE - 1))) + goto out; + + len = SHA256_DIGEST_SIZE; + rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->out_sg, + &nx_ctx->op.outlen, + &len, + out, + NX_DS_SHA256); + + if (rc || len != SHA256_DIGEST_SIZE) + goto out; if (!nx_ctx->op.outlen) { rc = -EINVAL; @@ -189,8 +226,7 @@ static int nx_sha256_final(struct shash_desc *desc, u8 *out) atomic_inc(&(nx_ctx->stats->sha256_ops)); - atomic64_add(csbcpb->cpb.sha256.message_bit_length / 8, - &(nx_ctx->stats->sha256_bytes)); + atomic64_add(sctx->count, &(nx_ctx->stats->sha256_bytes)); memcpy(out, csbcpb->cpb.sha256.message_digest, SHA256_DIGEST_SIZE); out: spin_unlock_irqrestore(&nx_ctx->lock, irq_flags); @@ -200,62 +236,18 @@ out: static int nx_sha256_export(struct shash_desc *desc, void *out) { struct sha256_state *sctx = shash_desc_ctx(desc); - struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base); - struct nx_csbcpb *csbcpb = (struct nx_csbcpb *)nx_ctx->csbcpb; - struct sha256_state *octx = out; - unsigned long irq_flags; - - spin_lock_irqsave(&nx_ctx->lock, irq_flags); - octx->count = sctx->count + - (csbcpb->cpb.sha256.message_bit_length / 8); - memcpy(octx->buf, sctx->buf, sizeof(octx->buf)); - - /* if no data has been processed yet, we need to export SHA256's - * initial data, in case this context gets imported into a software - * context */ - if (csbcpb->cpb.sha256.message_bit_length) - memcpy(octx->state, csbcpb->cpb.sha256.message_digest, - SHA256_DIGEST_SIZE); - else { - octx->state[0] = SHA256_H0; - octx->state[1] = SHA256_H1; - octx->state[2] = SHA256_H2; - octx->state[3] = SHA256_H3; - octx->state[4] = SHA256_H4; - octx->state[5] = SHA256_H5; - octx->state[6] = SHA256_H6; - octx->state[7] = SHA256_H7; - } + memcpy(out, sctx, sizeof(*sctx)); - spin_unlock_irqrestore(&nx_ctx->lock, irq_flags); return 0; } static int nx_sha256_import(struct shash_desc *desc, const void *in) { struct sha256_state *sctx = shash_desc_ctx(desc); - struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base); - struct nx_csbcpb *csbcpb = (struct nx_csbcpb *)nx_ctx->csbcpb; - const struct sha256_state *ictx = in; - unsigned long irq_flags; - - spin_lock_irqsave(&nx_ctx->lock, irq_flags); - memcpy(sctx->buf, ictx->buf, sizeof(ictx->buf)); + memcpy(sctx, in, sizeof(*sctx)); - sctx->count = ictx->count & 0x3f; - csbcpb->cpb.sha256.message_bit_length = (ictx->count & ~0x3f) * 8; - - if (csbcpb->cpb.sha256.message_bit_length) { - memcpy(csbcpb->cpb.sha256.message_digest, ictx->state, - SHA256_DIGEST_SIZE); - - NX_CPB_FDM(csbcpb) |= NX_FDM_CONTINUATION; - NX_CPB_FDM(csbcpb) |= NX_FDM_INTERMEDIATE; - } - - spin_unlock_irqrestore(&nx_ctx->lock, irq_flags); return 0; } diff --git a/drivers/crypto/nx/nx-sha512.c b/drivers/crypto/nx/nx-sha512.c index 4ae5b0f221d5..b3adf1022673 100644 --- a/drivers/crypto/nx/nx-sha512.c +++ b/drivers/crypto/nx/nx-sha512.c @@ -32,7 +32,8 @@ static int nx_sha512_init(struct shash_desc *desc) { struct sha512_state *sctx = shash_desc_ctx(desc); struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base); - struct nx_sg *out_sg; + int len; + int rc; nx_ctx_init(nx_ctx, HCOP_FC_SHA); @@ -41,10 +42,28 @@ static int nx_sha512_init(struct shash_desc *desc) nx_ctx->ap = &nx_ctx->props[NX_PROPS_SHA512]; NX_CPB_SET_DIGEST_SIZE(nx_ctx->csbcpb, NX_DS_SHA512); - out_sg = nx_build_sg_list(nx_ctx->out_sg, (u8 *)sctx->state, - SHA512_DIGEST_SIZE, nx_ctx->ap->sglen); - nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg); + len = SHA512_DIGEST_SIZE; + rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->out_sg, + &nx_ctx->op.outlen, + &len, + (u8 *)sctx->state, + NX_DS_SHA512); + + if (rc || len != SHA512_DIGEST_SIZE) + goto out; + + sctx->state[0] = __cpu_to_be64(SHA512_H0); + sctx->state[1] = __cpu_to_be64(SHA512_H1); + sctx->state[2] = __cpu_to_be64(SHA512_H2); + sctx->state[3] = __cpu_to_be64(SHA512_H3); + sctx->state[4] = __cpu_to_be64(SHA512_H4); + sctx->state[5] = __cpu_to_be64(SHA512_H5); + sctx->state[6] = __cpu_to_be64(SHA512_H6); + sctx->state[7] = __cpu_to_be64(SHA512_H7); + sctx->count[0] = 0; + +out: return 0; } @@ -54,11 +73,11 @@ static int nx_sha512_update(struct shash_desc *desc, const u8 *data, struct sha512_state *sctx = shash_desc_ctx(desc); struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base); struct nx_csbcpb *csbcpb = (struct nx_csbcpb *)nx_ctx->csbcpb; - struct nx_sg *in_sg; - u64 to_process, leftover, total, spbc_bits; - u32 max_sg_len; + u64 to_process, leftover = 0, total; unsigned long irq_flags; int rc = 0; + int data_len; + u64 buf_len = (sctx->count[0] % SHA512_BLOCK_SIZE); spin_lock_irqsave(&nx_ctx->lock, irq_flags); @@ -66,16 +85,16 @@ static int nx_sha512_update(struct shash_desc *desc, const u8 *data, * 1: < SHA512_BLOCK_SIZE: copy into state, return 0 * 2: >= SHA512_BLOCK_SIZE: process X blocks, copy in leftover */ - total = sctx->count[0] + len; + total = (sctx->count[0] % SHA512_BLOCK_SIZE) + len; if (total < SHA512_BLOCK_SIZE) { - memcpy(sctx->buf + sctx->count[0], data, len); + memcpy(sctx->buf + buf_len, data, len); sctx->count[0] += len; goto out; } - in_sg = nx_ctx->in_sg; - max_sg_len = min_t(u32, nx_driver.of.max_sg_len/sizeof(struct nx_sg), - nx_ctx->ap->sglen); + memcpy(csbcpb->cpb.sha512.message_digest, sctx->state, SHA512_DIGEST_SIZE); + NX_CPB_FDM(csbcpb) |= NX_FDM_INTERMEDIATE; + NX_CPB_FDM(csbcpb) |= NX_FDM_CONTINUATION; do { /* @@ -83,34 +102,43 @@ static int nx_sha512_update(struct shash_desc *desc, const u8 *data, * this update. This value is also restricted by the sg list * limits. */ - to_process = min_t(u64, total, nx_ctx->ap->databytelen); - to_process = min_t(u64, to_process, - NX_PAGE_SIZE * (max_sg_len - 1)); + to_process = total - leftover; to_process = to_process & ~(SHA512_BLOCK_SIZE - 1); leftover = total - to_process; - if (sctx->count[0]) { - in_sg = nx_build_sg_list(nx_ctx->in_sg, - (u8 *) sctx->buf, - sctx->count[0], max_sg_len); + if (buf_len) { + data_len = buf_len; + rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->in_sg, + &nx_ctx->op.inlen, + &data_len, + (u8 *) sctx->buf, + NX_DS_SHA512); + + if (rc || data_len != buf_len) + goto out; } - in_sg = nx_build_sg_list(in_sg, (u8 *) data, - to_process - sctx->count[0], - max_sg_len); - nx_ctx->op.inlen = (nx_ctx->in_sg - in_sg) * - sizeof(struct nx_sg); - - if (NX_CPB_FDM(csbcpb) & NX_FDM_CONTINUATION) { - /* - * we've hit the nx chip previously and we're updating - * again, so copy over the partial digest. - */ - memcpy(csbcpb->cpb.sha512.input_partial_digest, + + data_len = to_process - buf_len; + rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->in_sg, + &nx_ctx->op.inlen, + &data_len, + (u8 *) data, + NX_DS_SHA512); + + if (rc || data_len != (to_process - buf_len)) + goto out; + + to_process = (data_len + buf_len); + leftover = total - to_process; + + /* + * we've hit the nx chip previously and we're updating + * again, so copy over the partial digest. + */ + memcpy(csbcpb->cpb.sha512.input_partial_digest, csbcpb->cpb.sha512.message_digest, SHA512_DIGEST_SIZE); - } - NX_CPB_FDM(csbcpb) |= NX_FDM_INTERMEDIATE; if (!nx_ctx->op.inlen || !nx_ctx->op.outlen) { rc = -EINVAL; goto out; @@ -122,24 +150,18 @@ static int nx_sha512_update(struct shash_desc *desc, const u8 *data, goto out; atomic_inc(&(nx_ctx->stats->sha512_ops)); - spbc_bits = csbcpb->cpb.sha512.spbc * 8; - csbcpb->cpb.sha512.message_bit_length_lo += spbc_bits; - if (csbcpb->cpb.sha512.message_bit_length_lo < spbc_bits) - csbcpb->cpb.sha512.message_bit_length_hi++; - - /* everything after the first update is continuation */ - NX_CPB_FDM(csbcpb) |= NX_FDM_CONTINUATION; total -= to_process; - data += to_process - sctx->count[0]; - sctx->count[0] = 0; - in_sg = nx_ctx->in_sg; + data += to_process - buf_len; + buf_len = 0; + } while (leftover >= SHA512_BLOCK_SIZE); /* copy the leftover back into the state struct */ if (leftover) memcpy(sctx->buf, data, leftover); - sctx->count[0] = leftover; + sctx->count[0] += len; + memcpy(sctx->state, csbcpb->cpb.sha512.message_digest, SHA512_DIGEST_SIZE); out: spin_unlock_irqrestore(&nx_ctx->lock, irq_flags); return rc; @@ -150,39 +172,52 @@ static int nx_sha512_final(struct shash_desc *desc, u8 *out) struct sha512_state *sctx = shash_desc_ctx(desc); struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base); struct nx_csbcpb *csbcpb = (struct nx_csbcpb *)nx_ctx->csbcpb; - struct nx_sg *in_sg, *out_sg; - u32 max_sg_len; u64 count0; unsigned long irq_flags; int rc; + int len; spin_lock_irqsave(&nx_ctx->lock, irq_flags); - max_sg_len = min_t(u32, nx_driver.of.max_sg_len, nx_ctx->ap->sglen); - - if (NX_CPB_FDM(csbcpb) & NX_FDM_CONTINUATION) { + /* final is represented by continuing the operation and indicating that + * this is not an intermediate operation */ + if (sctx->count[0] >= SHA512_BLOCK_SIZE) { /* we've hit the nx chip previously, now we're finalizing, * so copy over the partial digest */ - memcpy(csbcpb->cpb.sha512.input_partial_digest, - csbcpb->cpb.sha512.message_digest, SHA512_DIGEST_SIZE); + memcpy(csbcpb->cpb.sha512.input_partial_digest, sctx->state, + SHA512_DIGEST_SIZE); + NX_CPB_FDM(csbcpb) &= ~NX_FDM_INTERMEDIATE; + NX_CPB_FDM(csbcpb) |= NX_FDM_CONTINUATION; + } else { + NX_CPB_FDM(csbcpb) &= ~NX_FDM_INTERMEDIATE; + NX_CPB_FDM(csbcpb) &= ~NX_FDM_CONTINUATION; } - /* final is represented by continuing the operation and indicating that - * this is not an intermediate operation */ NX_CPB_FDM(csbcpb) &= ~NX_FDM_INTERMEDIATE; count0 = sctx->count[0] * 8; - csbcpb->cpb.sha512.message_bit_length_lo += count0; - if (csbcpb->cpb.sha512.message_bit_length_lo < count0) - csbcpb->cpb.sha512.message_bit_length_hi++; + csbcpb->cpb.sha512.message_bit_length_lo = count0; - in_sg = nx_build_sg_list(nx_ctx->in_sg, sctx->buf, sctx->count[0], - max_sg_len); - out_sg = nx_build_sg_list(nx_ctx->out_sg, out, SHA512_DIGEST_SIZE, - max_sg_len); - nx_ctx->op.inlen = (nx_ctx->in_sg - in_sg) * sizeof(struct nx_sg); - nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg); + len = sctx->count[0] & (SHA512_BLOCK_SIZE - 1); + rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->in_sg, + &nx_ctx->op.inlen, + &len, + (u8 *)sctx->buf, + NX_DS_SHA512); + + if (rc || len != (sctx->count[0] & (SHA512_BLOCK_SIZE - 1))) + goto out; + + len = SHA512_DIGEST_SIZE; + rc = nx_sha_build_sg_list(nx_ctx, nx_ctx->out_sg, + &nx_ctx->op.outlen, + &len, + out, + NX_DS_SHA512); + + if (rc) + goto out; if (!nx_ctx->op.outlen) { rc = -EINVAL; @@ -195,8 +230,7 @@ static int nx_sha512_final(struct shash_desc *desc, u8 *out) goto out; atomic_inc(&(nx_ctx->stats->sha512_ops)); - atomic64_add(csbcpb->cpb.sha512.message_bit_length_lo / 8, - &(nx_ctx->stats->sha512_bytes)); + atomic64_add(sctx->count[0], &(nx_ctx->stats->sha512_bytes)); memcpy(out, csbcpb->cpb.sha512.message_digest, SHA512_DIGEST_SIZE); out: @@ -207,74 +241,18 @@ out: static int nx_sha512_export(struct shash_desc *desc, void *out) { struct sha512_state *sctx = shash_desc_ctx(desc); - struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base); - struct nx_csbcpb *csbcpb = (struct nx_csbcpb *)nx_ctx->csbcpb; - struct sha512_state *octx = out; - unsigned long irq_flags; - spin_lock_irqsave(&nx_ctx->lock, irq_flags); + memcpy(out, sctx, sizeof(*sctx)); - /* move message_bit_length (128 bits) into count and convert its value - * to bytes */ - octx->count[0] = csbcpb->cpb.sha512.message_bit_length_lo >> 3 | - ((csbcpb->cpb.sha512.message_bit_length_hi & 7) << 61); - octx->count[1] = csbcpb->cpb.sha512.message_bit_length_hi >> 3; - - octx->count[0] += sctx->count[0]; - if (octx->count[0] < sctx->count[0]) - octx->count[1]++; - - memcpy(octx->buf, sctx->buf, sizeof(octx->buf)); - - /* if no data has been processed yet, we need to export SHA512's - * initial data, in case this context gets imported into a software - * context */ - if (csbcpb->cpb.sha512.message_bit_length_hi || - csbcpb->cpb.sha512.message_bit_length_lo) - memcpy(octx->state, csbcpb->cpb.sha512.message_digest, - SHA512_DIGEST_SIZE); - else { - octx->state[0] = SHA512_H0; - octx->state[1] = SHA512_H1; - octx->state[2] = SHA512_H2; - octx->state[3] = SHA512_H3; - octx->state[4] = SHA512_H4; - octx->state[5] = SHA512_H5; - octx->state[6] = SHA512_H6; - octx->state[7] = SHA512_H7; - } - - spin_unlock_irqrestore(&nx_ctx->lock, irq_flags); return 0; } static int nx_sha512_import(struct shash_desc *desc, const void *in) { struct sha512_state *sctx = shash_desc_ctx(desc); - struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&desc->tfm->base); - struct nx_csbcpb *csbcpb = (struct nx_csbcpb *)nx_ctx->csbcpb; - const struct sha512_state *ictx = in; - unsigned long irq_flags; - - spin_lock_irqsave(&nx_ctx->lock, irq_flags); - - memcpy(sctx->buf, ictx->buf, sizeof(ictx->buf)); - sctx->count[0] = ictx->count[0] & 0x3f; - csbcpb->cpb.sha512.message_bit_length_lo = (ictx->count[0] & ~0x3f) - << 3; - csbcpb->cpb.sha512.message_bit_length_hi = ictx->count[1] << 3 | - ictx->count[0] >> 61; - - if (csbcpb->cpb.sha512.message_bit_length_hi || - csbcpb->cpb.sha512.message_bit_length_lo) { - memcpy(csbcpb->cpb.sha512.message_digest, ictx->state, - SHA512_DIGEST_SIZE); - NX_CPB_FDM(csbcpb) |= NX_FDM_CONTINUATION; - NX_CPB_FDM(csbcpb) |= NX_FDM_INTERMEDIATE; - } + memcpy(sctx, in, sizeof(*sctx)); - spin_unlock_irqrestore(&nx_ctx->lock, irq_flags); return 0; } |