diff --git a/sys/opencrypto/criov.c b/sys/opencrypto/criov.c
index fff52fb6cc56df..96f0dfc59b664d 100644
--- a/sys/opencrypto/criov.c
+++ b/sys/opencrypto/criov.c
@@ -36,6 +36,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/errno.h>
 #include <sys/malloc.h>
 #include <sys/kernel.h>
+#include <sys/mbuf.h>
 #include <sys/uio.h>
 
 #include <opencrypto/cryptodev.h>
@@ -156,3 +157,42 @@ cuio_apply(struct uio *uio, int off, int len, int (*f)(void *, void *, u_int),
 	}
 	return (0);
 }
+
+void
+crypto_copyback(int flags, caddr_t buf, int off, int size, caddr_t in)
+{
+
+	if ((flags & CRYPTO_F_IMBUF) != 0)
+		m_copyback((struct mbuf *)buf, off, size, in);
+	else if ((flags & CRYPTO_F_IOV) != 0)
+		cuio_copyback((struct uio *)buf, off, size, in);
+	else
+		bcopy(in, buf + off, size);
+}
+
+void
+crypto_copydata(int flags, caddr_t buf, int off, int size, caddr_t out)
+{
+
+	if ((flags & CRYPTO_F_IMBUF) != 0)
+		m_copydata((struct mbuf *)buf, off, size, out);
+	else if ((flags & CRYPTO_F_IOV) != 0)
+		cuio_copydata((struct uio *)buf, off, size, out);
+	else
+		bcopy(buf + off, out, size);
+}
+
+int
+crypto_apply(int flags, caddr_t buf, int off, int len,
+    int (*f)(void *, void *, u_int), void *arg)
+{
+	int error;
+
+	if ((flags & CRYPTO_F_IMBUF) != 0)
+		error = m_apply((struct mbuf *)buf, off, len, f, arg);
+	else if ((flags & CRYPTO_F_IOV) != 0)
+		error = cuio_apply((struct uio *)buf, off, len, f, arg);
+	else
+		error = (*f)(arg, buf + off, len);
+	return (error);
+}
diff --git a/sys/opencrypto/cryptodev.h b/sys/opencrypto/cryptodev.h
index f106ef51b6bc81..9c061878fe0378 100644
--- a/sys/opencrypto/cryptodev.h
+++ b/sys/opencrypto/cryptodev.h
@@ -413,32 +413,12 @@ extern	void cuio_copyback(struct uio* uio, int off, int len, caddr_t cp);
 extern	struct iovec *cuio_getptr(struct uio *uio, int loc, int *off);
 extern	int cuio_apply(struct uio *uio, int off, int len,
 	    int (*f)(void *, void *, u_int), void *arg);
-struct mbuf;
-#define COPYBACK(type, buf, off, size, in)	do {			\
-	switch (type) {							\
-	case CRYPTO_BUF_CONTIG:						\
-		bcopy(in, (u_char *)(buf) + (off), size);		\
-		break;							\
-	case CRYPTO_BUF_MBUF:						\
-		m_copyback((struct mbuf *)(buf), off, size, in);	\
-		break;							\
-	case CRYPTO_BUF_IOV:						\
-		cuio_copyback((struct uio *)(buf), off, size, in);	\
-		break;							\
-	}								\
-} while (0)
-#define COPYDATA(type, buf, off, size, out)	do {			\
-	switch (type) {							\
-	case CRYPTO_BUF_CONTIG:						\
-		bcopy((u_char *)(buf) + (off), out, size);		\
-		break;							\
-	case CRYPTO_BUF_MBUF:						\
-		m_copydata((struct mbuf *)(buf), off, size, out);	\
-		break;							\
-	case CRYPTO_BUF_IOV:						\
-		cuio_copydata((struct uio *)(buf), off, size, out);	\
-		break;							\
-	}								\
-} while (0)
+
+extern	void crypto_copyback(int flags, caddr_t buf, int off, int size,
+	    caddr_t in);
+extern	void crypto_copydata(int flags, caddr_t buf, int off, int size,
+	    caddr_t out);
+extern	int crypto_apply(int flags, caddr_t buf, int off, int len,
+	    int (*f)(void *, void *, u_int), void *arg);
 #endif /* _KERNEL */
 #endif /* _CRYPTO_CRYPTO_H_ */