diff options
| author | Jaswinder Singh Rajput <jaswinderrajput@gmail.com> | 2009-11-23 20:25:50 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2009-11-23 20:25:50 +0800 |
| commit | 2f32bfd834d5d7eb230bcbf39aaacccd2a01d767 (patch) | |
| tree | 82f214b733e93ff81c4f0da45a756fe9fdc4dee2 /crypto/ansi_cprng.c | |
| parent | 507069c91e36786b3fa5d9515c35ed6bb0ce469b (diff) | |
| download | lwn-2f32bfd834d5d7eb230bcbf39aaacccd2a01d767.tar.gz lwn-2f32bfd834d5d7eb230bcbf39aaacccd2a01d767.zip | |
crypto: ansi_cprng - Move FIPS functions under CONFIG_CRYPTO_FIPS
fips_cprng_get_random and fips_cprng_reset is used only by
CONFIG_CRYPTO_FIPS. This also fixes compilation warnings:
crypto/ansi_cprng.c:360: warning: ‘fips_cprng_get_random’ defined but not used
crypto/ansi_cprng.c:393: warning: ‘fips_cprng_reset’ defined but not used
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/ansi_cprng.c')
| -rw-r--r-- | crypto/ansi_cprng.c | 56 |
1 files changed, 28 insertions, 28 deletions
diff --git a/crypto/ansi_cprng.c b/crypto/ansi_cprng.c index 45bd2182cb36..2bc332142849 100644 --- a/crypto/ansi_cprng.c +++ b/crypto/ansi_cprng.c @@ -357,14 +357,6 @@ static int cprng_get_random(struct crypto_rng *tfm, u8 *rdata, return get_prng_bytes(rdata, dlen, prng, 0); } -static int fips_cprng_get_random(struct crypto_rng *tfm, u8 *rdata, - unsigned int dlen) -{ - struct prng_context *prng = crypto_rng_ctx(tfm); - - return get_prng_bytes(rdata, dlen, prng, 1); -} - /* * This is the cprng_registered reset method the seed value is * interpreted as the tuple { V KEY DT} @@ -390,26 +382,6 @@ static int cprng_reset(struct crypto_rng *tfm, u8 *seed, unsigned int slen) return 0; } -static int fips_cprng_reset(struct crypto_rng *tfm, u8 *seed, unsigned int slen) -{ - u8 rdata[DEFAULT_BLK_SZ]; - int rc; - - struct prng_context *prng = crypto_rng_ctx(tfm); - - rc = cprng_reset(tfm, seed, slen); - - if (!rc) - goto out; - - /* this primes our continuity test */ - rc = get_prng_bytes(rdata, DEFAULT_BLK_SZ, prng, 0); - prng->rand_data_valid = DEFAULT_BLK_SZ; - -out: - return rc; -} - static struct crypto_alg rng_alg = { .cra_name = "stdrng", .cra_driver_name = "ansi_cprng", @@ -431,6 +403,34 @@ static struct crypto_alg rng_alg = { }; #ifdef CONFIG_CRYPTO_FIPS +static int fips_cprng_get_random(struct crypto_rng *tfm, u8 *rdata, + unsigned int dlen) +{ + struct prng_context *prng = crypto_rng_ctx(tfm); + + return get_prng_bytes(rdata, dlen, prng, 1); +} + +static int fips_cprng_reset(struct crypto_rng *tfm, u8 *seed, unsigned int slen) +{ + u8 rdata[DEFAULT_BLK_SZ]; + int rc; + + struct prng_context *prng = crypto_rng_ctx(tfm); + + rc = cprng_reset(tfm, seed, slen); + + if (!rc) + goto out; + + /* this primes our continuity test */ + rc = get_prng_bytes(rdata, DEFAULT_BLK_SZ, prng, 0); + prng->rand_data_valid = DEFAULT_BLK_SZ; + +out: + return rc; +} + static struct crypto_alg fips_rng_alg = { .cra_name = "fips(ansi_cprng)", .cra_driver_name = "fips_ansi_cprng", |