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allow the kern.cryptodevallowsoft sysctl to enable symetric/hashes too...

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This will allow us to more easily test the software versions of these
routines...

Considering that we've never had an software asymetric implmentation,
it's doubtful anyone has this enabled...
This commit is contained in:
John-Mark Gurney 2014-03-11 01:45:46 +00:00
parent 1bf557366c
commit 6c20d7a3ce
2 changed files with 10 additions and 7 deletions
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4
sys/opencrypto/crypto.c
View File

@ -161,10 +161,10 @@ int crypto_userasymcrypto = 1; /* userland may do asym crypto reqs */
SYSCTL_INT(_kern, OID_AUTO, userasymcrypto, CTLFLAG_RW,
&crypto_userasymcrypto, 0,
"Enable/disable user-mode access to asymmetric crypto support");
int crypto_devallowsoft = 0; /* only use hardware crypto for asym */
int crypto_devallowsoft = 0; /* only use hardware crypto */
SYSCTL_INT(_kern, OID_AUTO, cryptodevallowsoft, CTLFLAG_RW,
&crypto_devallowsoft, 0,
"Enable/disable use of software asym crypto support");
"Enable/disable use of software crypto by /dev/crypto");
MALLOC_DEFINE(M_CRYPTO_DATA, "crypto", "crypto session records");

13
sys/opencrypto/cryptodev.c
View File

@ -351,11 +351,14 @@ cryptof_truncate(
static int
checkforsoftware(int crid)
{
if (crid & CRYPTOCAP_F_SOFTWARE)
return EINVAL; /* XXX */
if ((crid & CRYPTOCAP_F_HARDWARE) == 0 &&
(crypto_getcaps(crid) & CRYPTOCAP_F_HARDWARE) == 0)
return EINVAL; /* XXX */
if (!crypto_devallowsoft) {
if (crid & CRYPTOCAP_F_SOFTWARE)
return EINVAL; /* XXX */
if ((crid & CRYPTOCAP_F_HARDWARE) == 0 &&
(crypto_getcaps(crid) & CRYPTOCAP_F_HARDWARE) == 0)
return EINVAL; /* XXX */
}
return 0;
}