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.
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
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