These functions were added in 2001 and are currently unused. copyinfrom() looks to have never been used. copyinstrfrom() was used for two weeks before the code was refactored to remove it's sole use. Reviewed by: brooks, kib Obtained from: CheriBSD Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D24928
115 lines
4.1 KiB
C
115 lines
4.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1982, 1986, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)uio.h 8.5 (Berkeley) 2/22/94
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* $FreeBSD$
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*/
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#ifndef _SYS_UIO_H_
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#define _SYS_UIO_H_
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#include <sys/cdefs.h>
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#include <sys/_types.h>
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#include <sys/_iovec.h>
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#include <sys/_uio.h>
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#ifndef _SSIZE_T_DECLARED
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typedef __ssize_t ssize_t;
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#define _SSIZE_T_DECLARED
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#endif
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#ifndef _OFF_T_DECLARED
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typedef __off_t off_t;
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#define _OFF_T_DECLARED
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#endif
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#ifdef _KERNEL
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struct uio {
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struct iovec *uio_iov; /* scatter/gather list */
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int uio_iovcnt; /* length of scatter/gather list */
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off_t uio_offset; /* offset in target object */
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ssize_t uio_resid; /* remaining bytes to process */
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enum uio_seg uio_segflg; /* address space */
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enum uio_rw uio_rw; /* operation */
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struct thread *uio_td; /* owner */
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};
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/*
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* Limits
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*
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* N.B.: UIO_MAXIOV must be no less than IOV_MAX from <sys/syslimits.h>
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* which in turn must be no less than _XOPEN_IOV_MAX from <limits.h>. If
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* we ever make this tunable (probably pointless), then IOV_MAX should be
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* removed from <sys/syslimits.h> and applications would be expected to use
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* sysconf(3) to find out the correct value, or else assume the worst
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* (_XOPEN_IOV_MAX). Perhaps UIO_MAXIOV should be simply defined as
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* IOV_MAX.
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*/
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#define UIO_MAXIOV 1024 /* max 1K of iov's */
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struct vm_object;
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struct vm_page;
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struct bus_dma_segment;
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struct uio *cloneuio(struct uio *uiop);
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int copyiniov(const struct iovec *iovp, u_int iovcnt, struct iovec **iov,
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int error);
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int copyinuio(const struct iovec *iovp, u_int iovcnt, struct uio **uiop);
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int copyout_map(struct thread *td, vm_offset_t *addr, size_t sz);
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int copyout_unmap(struct thread *td, vm_offset_t addr, size_t sz);
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int physcopyin(void *src, vm_paddr_t dst, size_t len);
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int physcopyout(vm_paddr_t src, void *dst, size_t len);
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int physcopyin_vlist(struct bus_dma_segment *src, off_t offset,
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vm_paddr_t dst, size_t len);
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int physcopyout_vlist(vm_paddr_t src, struct bus_dma_segment *dst,
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off_t offset, size_t len);
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int uiomove(void *cp, int n, struct uio *uio);
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int uiomove_frombuf(void *buf, int buflen, struct uio *uio);
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int uiomove_fromphys(struct vm_page *ma[], vm_offset_t offset, int n,
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struct uio *uio);
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int uiomove_nofault(void *cp, int n, struct uio *uio);
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int uiomove_object(struct vm_object *obj, off_t obj_size, struct uio *uio);
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#else /* !_KERNEL */
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__BEGIN_DECLS
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ssize_t readv(int, const struct iovec *, int);
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ssize_t writev(int, const struct iovec *, int);
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#if __BSD_VISIBLE
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ssize_t preadv(int, const struct iovec *, int, off_t);
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ssize_t pwritev(int, const struct iovec *, int, off_t);
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#endif
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__END_DECLS
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#endif /* _KERNEL */
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#endif /* !_SYS_UIO_H_ */
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