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9f0a21e641
Add the FreeBSD platform code to the OpenZFS repository. As of this commit the source can be compiled and tested on FreeBSD 11 and 12. Subsequent commits are now required to compile on FreeBSD and Linux. Additionally, they must pass the ZFS Test Suite on FreeBSD which is being run by the CI. As of this commit 1230 tests pass on FreeBSD and there are no unexpected failures. Reviewed-by: Sean Eric Fagan <sef@ixsystems.com> Reviewed-by: Jorgen Lundman <lundman@lundman.net> Reviewed-by: Richard Laager <rlaager@wiktel.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Co-authored-by: Ryan Moeller <ryan@iXsystems.com> Signed-off-by: Matt Macy <mmacy@FreeBSD.org> Signed-off-by: Ryan Moeller <ryan@iXsystems.com> Closes #898 Closes #8987
269 lines
10 KiB
C
269 lines
10 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 1988, 2010, Oracle and/or its affiliates. All rights reserved.
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* Copyright 2017 RackTop Systems.
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*/
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/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
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/* All Rights Reserved */
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/*
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* University Copyright- Copyright (c) 1982, 1986, 1988
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* The Regents of the University of California
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* All Rights Reserved
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*
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* University Acknowledgment- Portions of this document are derived from
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* software developed by the University of California, Berkeley, and its
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* contributors.
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*/
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#ifndef _SYS_VNODE_IMPL_H
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#define _SYS_VNODE_IMPL_H
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#define IS_DEVVP(vp) \
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((vp)->v_type == VCHR || (vp)->v_type == VBLK || (vp)->v_type == VFIFO)
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#define V_XATTRDIR 0x0000 /* attribute unnamed directory */
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#define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */
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/*
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* The xvattr structure is really a variable length structure that
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* is made up of:
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* - The classic vattr_t (xva_vattr)
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* - a 32 bit quantity (xva_mapsize) that specifies the size of the
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* attribute bitmaps in 32 bit words.
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* - A pointer to the returned attribute bitmap (needed because the
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* previous element, the requested attribute bitmap) is variable lenth.
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* - The requested attribute bitmap, which is an array of 32 bit words.
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* Callers use the XVA_SET_REQ() macro to set the bits corresponding to
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* the attributes that are being requested.
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* - The returned attribute bitmap, which is an array of 32 bit words.
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* File systems that support optional attributes use the XVA_SET_RTN()
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* macro to set the bits corresponding to the attributes that are being
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* returned.
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* - The xoptattr_t structure which contains the attribute values
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*
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* xva_mapsize determines how many words in the attribute bitmaps.
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* Immediately following the attribute bitmaps is the xoptattr_t.
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* xva_getxoptattr() is used to get the pointer to the xoptattr_t
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* section.
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*/
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#define XVA_MAPSIZE 3 /* Size of attr bitmaps */
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#define XVA_MAGIC 0x78766174 /* Magic # for verification */
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/*
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* The xvattr structure is an extensible structure which permits optional
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* attributes to be requested/returned. File systems may or may not support
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* optional attributes. They do so at their own discretion but if they do
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* support optional attributes, they must register the VFSFT_XVATTR feature
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* so that the optional attributes can be set/retrived.
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*
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* The fields of the xvattr structure are:
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*
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* xva_vattr - The first element of an xvattr is a legacy vattr structure
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* which includes the common attributes. If AT_XVATTR is set in the va_mask
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* then the entire structure is treated as an xvattr. If AT_XVATTR is not
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* set, then only the xva_vattr structure can be used.
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*
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* xva_magic - 0x78766174 (hex for "xvat"). Magic number for verification.
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*
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* xva_mapsize - Size of requested and returned attribute bitmaps.
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*
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* xva_rtnattrmapp - Pointer to xva_rtnattrmap[]. We need this since the
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* size of the array before it, xva_reqattrmap[], could change which means
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* the location of xva_rtnattrmap[] could change. This will allow unbundled
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* file systems to find the location of xva_rtnattrmap[] when the sizes change.
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*
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* xva_reqattrmap[] - Array of requested attributes. Attributes are
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* represented by a specific bit in a specific element of the attribute
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* map array. Callers set the bits corresponding to the attributes
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* that the caller wants to get/set.
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*
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* xva_rtnattrmap[] - Array of attributes that the file system was able to
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* process. Not all file systems support all optional attributes. This map
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* informs the caller which attributes the underlying file system was able
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* to set/get. (Same structure as the requested attributes array in terms
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* of each attribute corresponding to specific bits and array elements.)
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*
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* xva_xoptattrs - Structure containing values of optional attributes.
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* These values are only valid if the corresponding bits in xva_reqattrmap
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* are set and the underlying file system supports those attributes.
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*/
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/*
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* Attribute bits used in the extensible attribute's (xva's) attribute
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* bitmaps. Note that the bitmaps are made up of a variable length number
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* of 32-bit words. The convention is to use XAT{n}_{attrname} where "n"
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* is the element in the bitmap (starting at 1). This convention is for
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* the convenience of the maintainer to keep track of which element each
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* attribute belongs to.
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*
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* NOTE THAT CONSUMERS MUST *NOT* USE THE XATn_* DEFINES DIRECTLY. CONSUMERS
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* MUST USE THE XAT_* DEFINES.
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*/
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#define XAT0_INDEX 0LL /* Index into bitmap for XAT0 attrs */
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#define XAT0_CREATETIME 0x00000001 /* Create time of file */
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#define XAT0_ARCHIVE 0x00000002 /* Archive */
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#define XAT0_SYSTEM 0x00000004 /* System */
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#define XAT0_READONLY 0x00000008 /* Readonly */
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#define XAT0_HIDDEN 0x00000010 /* Hidden */
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#define XAT0_NOUNLINK 0x00000020 /* Nounlink */
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#define XAT0_IMMUTABLE 0x00000040 /* immutable */
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#define XAT0_APPENDONLY 0x00000080 /* appendonly */
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#define XAT0_NODUMP 0x00000100 /* nodump */
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#define XAT0_OPAQUE 0x00000200 /* opaque */
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#define XAT0_AV_QUARANTINED 0x00000400 /* anti-virus quarantine */
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#define XAT0_AV_MODIFIED 0x00000800 /* anti-virus modified */
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#define XAT0_AV_SCANSTAMP 0x00001000 /* anti-virus scanstamp */
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#define XAT0_REPARSE 0x00002000 /* FS reparse point */
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#define XAT0_GEN 0x00004000 /* object generation number */
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#define XAT0_OFFLINE 0x00008000 /* offline */
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#define XAT0_SPARSE 0x00010000 /* sparse */
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/* Support for XAT_* optional attributes */
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#define XVA_MASK 0xffffffff /* Used to mask off 32 bits */
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#define XVA_SHFT 32 /* Used to shift index */
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/*
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* Used to pry out the index and attribute bits from the XAT_* attributes
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* defined below. Note that we're masking things down to 32 bits then
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* casting to uint32_t.
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*/
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#define XVA_INDEX(attr) ((uint32_t)(((attr) >> XVA_SHFT) & XVA_MASK))
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#define XVA_ATTRBIT(attr) ((uint32_t)((attr) & XVA_MASK))
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/*
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* The following defines present a "flat namespace" so that consumers don't
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* need to keep track of which element belongs to which bitmap entry.
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*
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* NOTE THAT THESE MUST NEVER BE OR-ed TOGETHER
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*/
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#define XAT_CREATETIME ((XAT0_INDEX << XVA_SHFT) | XAT0_CREATETIME)
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#define XAT_ARCHIVE ((XAT0_INDEX << XVA_SHFT) | XAT0_ARCHIVE)
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#define XAT_SYSTEM ((XAT0_INDEX << XVA_SHFT) | XAT0_SYSTEM)
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#define XAT_READONLY ((XAT0_INDEX << XVA_SHFT) | XAT0_READONLY)
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#define XAT_HIDDEN ((XAT0_INDEX << XVA_SHFT) | XAT0_HIDDEN)
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#define XAT_NOUNLINK ((XAT0_INDEX << XVA_SHFT) | XAT0_NOUNLINK)
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#define XAT_IMMUTABLE ((XAT0_INDEX << XVA_SHFT) | XAT0_IMMUTABLE)
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#define XAT_APPENDONLY ((XAT0_INDEX << XVA_SHFT) | XAT0_APPENDONLY)
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#define XAT_NODUMP ((XAT0_INDEX << XVA_SHFT) | XAT0_NODUMP)
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#define XAT_OPAQUE ((XAT0_INDEX << XVA_SHFT) | XAT0_OPAQUE)
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#define XAT_AV_QUARANTINED ((XAT0_INDEX << XVA_SHFT) | XAT0_AV_QUARANTINED)
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#define XAT_AV_MODIFIED ((XAT0_INDEX << XVA_SHFT) | XAT0_AV_MODIFIED)
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#define XAT_AV_SCANSTAMP ((XAT0_INDEX << XVA_SHFT) | XAT0_AV_SCANSTAMP)
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#define XAT_REPARSE ((XAT0_INDEX << XVA_SHFT) | XAT0_REPARSE)
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#define XAT_GEN ((XAT0_INDEX << XVA_SHFT) | XAT0_GEN)
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#define XAT_OFFLINE ((XAT0_INDEX << XVA_SHFT) | XAT0_OFFLINE)
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#define XAT_SPARSE ((XAT0_INDEX << XVA_SHFT) | XAT0_SPARSE)
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/*
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* The returned attribute map array (xva_rtnattrmap[]) is located past the
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* requested attribute map array (xva_reqattrmap[]). Its location changes
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* when the array sizes change. We use a separate pointer in a known location
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* (xva_rtnattrmapp) to hold the location of xva_rtnattrmap[]. This is
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* set in xva_init()
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*/
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#define XVA_RTNATTRMAP(xvap) ((xvap)->xva_rtnattrmapp)
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#define MODEMASK 07777 /* mode bits plus permission bits */
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#define PERMMASK 00777 /* permission bits */
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/*
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* VOP_ACCESS flags
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*/
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#define V_ACE_MASK 0x1 /* mask represents NFSv4 ACE permissions */
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/*
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* Flags for vnode operations.
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*/
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enum rm { RMFILE, RMDIRECTORY }; /* rm or rmdir (remove) */
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enum create { CRCREAT, CRMKNOD, CRMKDIR }; /* reason for create */
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/*
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* Structure used by various vnode operations to determine
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* the context (pid, host, identity) of a caller.
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*
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* The cc_caller_id is used to identify one or more callers who invoke
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* operations, possibly on behalf of others. For example, the NFS
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* server could have it's own cc_caller_id which can be detected by
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* vnode/vfs operations or (FEM) monitors on those operations. New
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* caller IDs are generated by fs_new_caller_id().
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*/
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typedef struct caller_context {
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pid_t cc_pid; /* Process ID of the caller */
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int cc_sysid; /* System ID, used for remote calls */
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u_longlong_t cc_caller_id; /* Identifier for (set of) caller(s) */
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ulong_t cc_flags;
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} caller_context_t;
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struct taskq;
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/*
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* Flags for VOP_LOOKUP
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*
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* Defined in file.h, but also possible, FIGNORECASE and FSEARCH
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*
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*/
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#define LOOKUP_DIR 0x01 /* want parent dir vp */
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#define LOOKUP_XATTR 0x02 /* lookup up extended attr dir */
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#define CREATE_XATTR_DIR 0x04 /* Create extended attr dir */
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#define LOOKUP_HAVE_SYSATTR_DIR 0x08 /* Already created virtual GFS dir */
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/*
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* Flags for VOP_READDIR
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*/
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#define V_RDDIR_ENTFLAGS 0x01 /* request dirent flags */
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#define V_RDDIR_ACCFILTER 0x02 /* filter out inaccessible dirents */
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/*
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* Public vnode manipulation functions.
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*/
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void vn_rele_async(struct vnode *vp, struct taskq *taskq);
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#define VN_RELE_ASYNC(vp, taskq) { \
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vn_rele_async(vp, taskq); \
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}
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/*
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* Flags to VOP_SETATTR/VOP_GETATTR.
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*/
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#define ATTR_UTIME 0x01 /* non-default utime(2) request */
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#define ATTR_EXEC 0x02 /* invocation from exec(2) */
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#define ATTR_COMM 0x04 /* yield common vp attributes */
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#define ATTR_HINT 0x08 /* information returned will be `hint' */
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#define ATTR_REAL 0x10 /* yield attributes of the real vp */
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#define ATTR_NOACLCHECK 0x20 /* Don't check ACL when checking permissions */
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#define ATTR_TRIGGER 0x40 /* Mount first if vnode is a trigger mount */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_VNODE_H */
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