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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2009-07-10 13:18:26 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2009-07-11 18:23:34 +0800 |
| commit | 406f104b4172de7452702c6810807c1b0132ba22 (patch) | |
| tree | 199d9585a1bc5d91f740c05b250454dd70cf2256 /arch/s390/crypto | |
| parent | 9b2fda7b94a769af13c24582739e50664b0e27a8 (diff) | |
| download | linux-406f104b4172de7452702c6810807c1b0132ba22.tar.bz2 | |
crypto: sha1-s390 - Add export/import support
This patch adds export/import support to sha1-s390. The exported
type is defined by struct sha1_state, which is basically the entire
descriptor state of sha1_generic.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/s390/crypto')
| -rw-r--r-- | arch/s390/crypto/sha1_s390.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/s390/crypto/sha1_s390.c b/arch/s390/crypto/sha1_s390.c index e85ba348722a..2c5ec7969e37 100644 --- a/arch/s390/crypto/sha1_s390.c +++ b/arch/s390/crypto/sha1_s390.c @@ -46,12 +46,38 @@ static int sha1_init(struct shash_desc *desc) return 0; } +static int sha1_export(struct shash_desc *desc, void *out) +{ + struct s390_sha_ctx *sctx = shash_desc_ctx(desc); + struct sha1_state *octx = out; + + octx->count = sctx->count; + memcpy(octx->state, sctx->state, sizeof(octx->state)); + memcpy(octx->buffer, sctx->buf, sizeof(octx->buffer)); + return 0; +} + +static int sha1_import(struct shash_desc *desc, const u8 *in) +{ + struct sha1_state *sctx = shash_desc_ctx(desc); + struct sha1_state *ictx = in; + + sctx->count = ictx->count; + memcpy(sctx->state, ictx->state, sizeof(ictx->state)); + memcpy(sctx->buf, ictx->buffer, sizeof(ictx->buffer)); + sctx->func = KIMD_SHA_1; + return 0; +} + static struct shash_alg alg = { .digestsize = SHA1_DIGEST_SIZE, .init = sha1_init, .update = s390_sha_update, .final = s390_sha_final, + .export = sha1_export, + .import = sha1_import, .descsize = sizeof(struct s390_sha_ctx), + .statesize = sizeof(struct sha1_state), .base = { .cra_name = "sha1", .cra_driver_name= "sha1-s390", |