Am Dienstag, 9. August 2016, 15:48:00 CEST schrieb Mat Martineau:
Hi Mat,
> On Sat, 6 Aug 2016, Stephan Mueller wrote:
> > diff --git a/security/keys/internal.h b/security/keys/internal.h
> > index a705a7d..7659b52 100644
> > --- a/security/keys/internal.h
> > +++ b/security/keys/internal.h
> > @@ -259,15 +259,32 @@ static inline long keyctl_get_persistent(uid_t uid,
> > key_serial_t destring) #endif
> >
> > #ifdef CONFIG_KEY_DH_OPERATIONS
> > +#include <crypto/rng.h>
> > +#include <linux/compat.h>
>
> These may belong at the top of the file, even if they are only used when
> CONFIG_KEY_DH_OPERATIONS is defined.
Sure. As I have seen also this coding style in the kernel, I thought it would
make sense here too. But I will move it.
>
> > extern long keyctl_dh_compute(struct keyctl_dh_params __user *, char
> > __user *, - size_t, void __user *);
> > + size_t, struct keyctl_kdf_params __user *);
> > +extern long __keyctl_dh_compute(struct keyctl_dh_params __user *, char
> > __user *, + size_t, struct keyctl_kdf_params *);
> > +extern long compat_keyctl_dh_compute(struct keyctl_dh_params __user
> > *params, + char __user *buffer, size_t buflen,
> > + struct compat_keyctl_kdf_params __user *kdf);
> > +#define KEYCTL_KDF_MAX_OUTPUT_LEN 1024 /* max length of KDF output */
> > +#define KEYCTL_KDF_MAX_OI_LEN 64 /* max length of
> > otherinfo */
> > #else
> > static inline long keyctl_dh_compute(struct keyctl_dh_params __user
> > *params,>
> > char __user *buffer, size_t buflen,
> >
> > - void __user *reserved)
> > + struct keyctl_kdf_params __user *kdf)
> > {
> >
> > return -EOPNOTSUPP;
> >
> > }
> > +
> > +static inline long compat_keyctl_dh_compute(
> > + struct keyctl_dh_params __user *params,
> > + char __user *buffer, size_t buflen,
> > + struct keyctl_kdf_params __user *kdf)
> > +{
> > + return -EOPNOTSUPP
> > +}
> > #endif
> >
> > /*
> > diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
> > index d580ad0..b106898 100644
> > --- a/security/keys/keyctl.c
> > +++ b/security/keys/keyctl.c
> > @@ -1689,7 +1689,7 @@ SYSCALL_DEFINE5(keyctl, int, option, unsigned long,
> > arg2, unsigned long, arg3,>
> > case KEYCTL_DH_COMPUTE:
> > return keyctl_dh_compute((struct keyctl_dh_params __user *)
> > arg2,
> >
> > (char __user *) arg3, (size_t) arg4,
> >
> > - (void __user *) arg5);
> > + (struct keyctl_kdf_params __user *)
> > arg5);
> >
> > default:
> > return -EOPNOTSUPP;
>
> Regards,
> --
> Mat Martineau
> Intel OTC
Ciao
Stephan
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