diff options
Diffstat (limited to 'crypto/seqiv.c')
| -rw-r--r-- | crypto/seqiv.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/crypto/seqiv.c b/crypto/seqiv.c index b903aab3157..5a013a8bf87 100644 --- a/crypto/seqiv.c +++ b/crypto/seqiv.c @@ -15,11 +15,11 @@ #include <crypto/internal/aead.h> #include <crypto/internal/skcipher.h> +#include <crypto/rng.h> #include <linux/err.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> -#include <linux/random.h> #include <linux/spinlock.h> #include <linux/string.h> @@ -189,17 +189,22 @@ static int seqiv_givencrypt_first(struct skcipher_givcrypt_request *req) { struct crypto_ablkcipher *geniv = skcipher_givcrypt_reqtfm(req); struct seqiv_ctx *ctx = crypto_ablkcipher_ctx(geniv); + int err = 0; spin_lock_bh(&ctx->lock); if (crypto_ablkcipher_crt(geniv)->givencrypt != seqiv_givencrypt_first) goto unlock; crypto_ablkcipher_crt(geniv)->givencrypt = seqiv_givencrypt; - get_random_bytes(ctx->salt, crypto_ablkcipher_ivsize(geniv)); + err = crypto_rng_get_bytes(crypto_default_rng, ctx->salt, + crypto_ablkcipher_ivsize(geniv)); unlock: spin_unlock_bh(&ctx->lock); + if (err) + return err; + return seqiv_givencrypt(req); } @@ -207,17 +212,22 @@ static int seqiv_aead_givencrypt_first(struct aead_givcrypt_request *req) { struct crypto_aead *geniv = aead_givcrypt_reqtfm(req); struct seqiv_ctx *ctx = crypto_aead_ctx(geniv); + int err = 0; spin_lock_bh(&ctx->lock); if (crypto_aead_crt(geniv)->givencrypt != seqiv_aead_givencrypt_first) goto unlock; crypto_aead_crt(geniv)->givencrypt = seqiv_aead_givencrypt; - get_random_bytes(ctx->salt, crypto_aead_ivsize(geniv)); + err = crypto_rng_get_bytes(crypto_default_rng, ctx->salt, + crypto_aead_ivsize(geniv)); unlock: spin_unlock_bh(&ctx->lock); + if (err) + return err; + return seqiv_aead_givencrypt(req); } @@ -298,19 +308,27 @@ static struct crypto_instance *seqiv_alloc(struct rtattr **tb) if (IS_ERR(algt)) return ERR_PTR(err); + err = crypto_get_default_rng(); + if (err) + return ERR_PTR(err); + if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & CRYPTO_ALG_TYPE_MASK) inst = seqiv_ablkcipher_alloc(tb); else inst = seqiv_aead_alloc(tb); if (IS_ERR(inst)) - goto out; + goto put_rng; inst->alg.cra_alignmask |= __alignof__(u32) - 1; inst->alg.cra_ctxsize += sizeof(struct seqiv_ctx); out: return inst; + +put_rng: + crypto_put_default_rng(); + goto out; } static void seqiv_free(struct crypto_instance *inst) @@ -319,6 +337,7 @@ static void seqiv_free(struct crypto_instance *inst) skcipher_geniv_free(inst); else aead_geniv_free(inst); + crypto_put_default_rng(); } static struct crypto_template seqiv_tmpl = { |