1 /* $FreeBSD: src/sys/opencrypto/criov.c,v 1.1.2.1 2002/11/21 23:34:23 sam Exp $ */
2 /* $OpenBSD: criov.c,v 1.9 2002/01/29 15:48:29 jason Exp $ */
5 * Copyright (c) 1999 Theo de Raadt
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #include <sys/param.h>
32 #include <sys/systm.h>
34 #include <sys/errno.h>
35 #include <sys/malloc.h>
36 #include <sys/kernel.h>
39 #include <opencrypto/cryptodev.h>
42 cuio_copydata(struct uio* uio, int off, int len, caddr_t cp)
44 struct iovec *iov = uio->uio_iov;
45 int iol = uio->uio_iovcnt;
49 panic("cuio_copydata: off %d < 0", off);
51 panic("cuio_copydata: len %d < 0", len);
54 panic("iov_copydata: empty in skip");
55 if (off < iov->iov_len)
63 panic("cuio_copydata: empty");
64 count = min(iov->iov_len - off, len);
65 bcopy(((caddr_t)iov->iov_base) + off, cp, count);
75 cuio_copyback(struct uio* uio, int off, int len, caddr_t cp)
77 struct iovec *iov = uio->uio_iov;
78 int iol = uio->uio_iovcnt;
82 panic("cuio_copyback: off %d < 0", off);
84 panic("cuio_copyback: len %d < 0", len);
87 panic("cuio_copyback: empty in skip");
88 if (off < iov->iov_len)
96 panic("uio_copyback: empty");
97 count = min(iov->iov_len - off, len);
98 bcopy(cp, ((caddr_t)iov->iov_base) + off, count);
108 * Return a pointer to iov/offset of location in iovec list.
111 cuio_getptr(struct uio *uio, int loc, int *off)
113 struct iovec *iov = uio->uio_iov;
114 int iol = uio->uio_iovcnt;
117 /* Normal end of search */
118 if (loc < iov->iov_len) {
126 /* Point at the end of valid data */