diff options
Diffstat (limited to 'arch/s390/crypto/sha_common.c')
| -rw-r--r-- | arch/s390/crypto/sha_common.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/arch/s390/crypto/sha_common.c b/arch/s390/crypto/sha_common.c index 686fe7aa192f..961d7d522af1 100644 --- a/arch/s390/crypto/sha_common.c +++ b/arch/s390/crypto/sha_common.c @@ -18,6 +18,7 @@ int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len) struct s390_sha_ctx *ctx = shash_desc_ctx(desc); unsigned int bsize = crypto_shash_blocksize(desc->tfm); unsigned int index, n; + int fc; /* how much is already in the buffer? */ index = ctx->count % bsize; @@ -26,10 +27,16 @@ int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len) if ((index + len) < bsize) goto store; + fc = ctx->func; + if (ctx->first_message_part) + fc |= test_facility(86) ? CPACF_KIMD_NIP : 0; + /* process one stored block */ if (index) { memcpy(ctx->buf + index, data, bsize - index); - cpacf_kimd(ctx->func, ctx->state, ctx->buf, bsize); + cpacf_kimd(fc, ctx->state, ctx->buf, bsize); + ctx->first_message_part = 0; + fc &= ~CPACF_KIMD_NIP; data += bsize - index; len -= bsize - index; index = 0; @@ -38,7 +45,8 @@ int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len) /* process as many blocks as possible */ if (len >= bsize) { n = (len / bsize) * bsize; - cpacf_kimd(ctx->func, ctx->state, data, n); + cpacf_kimd(fc, ctx->state, data, n); + ctx->first_message_part = 0; data += n; len -= n; } @@ -75,7 +83,7 @@ int s390_sha_final(struct shash_desc *desc, u8 *out) unsigned int bsize = crypto_shash_blocksize(desc->tfm); u64 bits; unsigned int n; - int mbl_offset; + int mbl_offset, fc; n = ctx->count % bsize; bits = ctx->count * 8; @@ -109,7 +117,11 @@ int s390_sha_final(struct shash_desc *desc, u8 *out) return -EINVAL; } - cpacf_klmd(ctx->func, ctx->state, ctx->buf, n); + fc = ctx->func; + fc |= test_facility(86) ? CPACF_KLMD_DUFOP : 0; + if (ctx->first_message_part) + fc |= CPACF_KLMD_NIP; + cpacf_klmd(fc, ctx->state, ctx->buf, n); /* copy digest to out */ memcpy(out, ctx->state, crypto_shash_digestsize(desc->tfm)); |