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| author | Iuliana Prodan <iuliana.prodan@nxp.com> | 2019-07-31 16:08:06 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-08-09 15:11:46 +1000 |
| commit | 68a51394f37ae8c6eb51209efc406355a9861874 (patch) | |
| tree | 21b4fd50eb9107032ed99893e4e2b880ade2592b /drivers/crypto/caam/caamalg_qi2.c | |
| parent | 836d8f43c5e529935bb3140edc710c23ffd1d54a (diff) | |
| download | linux-stable-68a51394f37ae8c6eb51209efc406355a9861874.tar.gz linux-stable-68a51394f37ae8c6eb51209efc406355a9861874.tar.bz2 linux-stable-68a51394f37ae8c6eb51209efc406355a9861874.zip | |
crypto: caam - check authsize
Check authsize to solve the extra tests that expect -EINVAL to be
returned when the authentication tag size is not valid.
Validated authsize for GCM, RFC4106 and RFC4543.
Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Reviewed-by: Horia Geanta <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/caam/caamalg_qi2.c')
| -rw-r--r-- | drivers/crypto/caam/caamalg_qi2.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/crypto/caam/caamalg_qi2.c b/drivers/crypto/caam/caamalg_qi2.c index 337150bdf3d1..141d6231e4b9 100644 --- a/drivers/crypto/caam/caamalg_qi2.c +++ b/drivers/crypto/caam/caamalg_qi2.c @@ -720,6 +720,11 @@ static int gcm_set_sh_desc(struct crypto_aead *aead) static int gcm_setauthsize(struct crypto_aead *authenc, unsigned int authsize) { struct caam_ctx *ctx = crypto_aead_ctx(authenc); + int err; + + err = crypto_gcm_check_authsize(authsize); + if (err) + return err; ctx->authsize = authsize; gcm_set_sh_desc(authenc); @@ -812,6 +817,11 @@ static int rfc4106_setauthsize(struct crypto_aead *authenc, unsigned int authsize) { struct caam_ctx *ctx = crypto_aead_ctx(authenc); + int err; + + err = crypto_rfc4106_check_authsize(authsize); + if (err) + return err; ctx->authsize = authsize; rfc4106_set_sh_desc(authenc); @@ -911,6 +921,9 @@ static int rfc4543_setauthsize(struct crypto_aead *authenc, { struct caam_ctx *ctx = crypto_aead_ctx(authenc); + if (authsize != 16) + return -EINVAL; + ctx->authsize = authsize; rfc4543_set_sh_desc(authenc); |