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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or https://opensource.org/licenses/CDDL-1.0.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1988, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright 2017 RackTop Systems.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#ifndef _SYS_VNODE_IMPL_H
#define _SYS_VNODE_IMPL_H
#define IS_DEVVP(vp) \
((vp)->v_type == VCHR || (vp)->v_type == VBLK || (vp)->v_type == VFIFO)
#define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */
/*
* The xvattr structure is really a variable length structure that
* is made up of:
* - The classic vattr_t (xva_vattr)
* - a 32 bit quantity (xva_mapsize) that specifies the size of the
* attribute bitmaps in 32 bit words.
* - A pointer to the returned attribute bitmap (needed because the
* previous element, the requested attribute bitmap) is variable length.
* - The requested attribute bitmap, which is an array of 32 bit words.
* Callers use the XVA_SET_REQ() macro to set the bits corresponding to
* the attributes that are being requested.
* - The returned attribute bitmap, which is an array of 32 bit words.
* File systems that support optional attributes use the XVA_SET_RTN()
* macro to set the bits corresponding to the attributes that are being
* returned.
* - The xoptattr_t structure which contains the attribute values
*
* xva_mapsize determines how many words in the attribute bitmaps.
* Immediately following the attribute bitmaps is the xoptattr_t.
* xva_getxoptattr() is used to get the pointer to the xoptattr_t
* section.
*/
#define XVA_MAPSIZE 3 /* Size of attr bitmaps */
#define XVA_MAGIC 0x78766174 /* Magic # for verification */
/*
* The xvattr structure is an extensible structure which permits optional
* attributes to be requested/returned. File systems may or may not support
* optional attributes. They do so at their own discretion but if they do
* support optional attributes, they must register the VFSFT_XVATTR feature
* so that the optional attributes can be set/retrieved.
*
* The fields of the xvattr structure are:
*
* xva_vattr - The first element of an xvattr is a legacy vattr structure
* which includes the common attributes. If AT_XVATTR is set in the va_mask
* then the entire structure is treated as an xvattr. If AT_XVATTR is not
* set, then only the xva_vattr structure can be used.
*
* xva_magic - 0x78766174 (hex for "xvat"). Magic number for verification.
*
* xva_mapsize - Size of requested and returned attribute bitmaps.
*
* xva_rtnattrmapp - Pointer to xva_rtnattrmap[]. We need this since the
* size of the array before it, xva_reqattrmap[], could change which means
* the location of xva_rtnattrmap[] could change. This will allow unbundled
* file systems to find the location of xva_rtnattrmap[] when the sizes change.
*
* xva_reqattrmap[] - Array of requested attributes. Attributes are
* represented by a specific bit in a specific element of the attribute
* map array. Callers set the bits corresponding to the attributes
* that the caller wants to get/set.
*
* xva_rtnattrmap[] - Array of attributes that the file system was able to
* process. Not all file systems support all optional attributes. This map
* informs the caller which attributes the underlying file system was able
* to set/get. (Same structure as the requested attributes array in terms
* of each attribute corresponding to specific bits and array elements.)
*
* xva_xoptattrs - Structure containing values of optional attributes.
* These values are only valid if the corresponding bits in xva_reqattrmap
* are set and the underlying file system supports those attributes.
*/
/*
* Attribute bits used in the extensible attribute's (xva's) attribute
* bitmaps. Note that the bitmaps are made up of a variable length number
* of 32-bit words. The convention is to use XAT{n}_{attrname} where "n"
* is the element in the bitmap (starting at 1). This convention is for
* the convenience of the maintainer to keep track of which element each
* attribute belongs to.
*
* NOTE THAT CONSUMERS MUST *NOT* USE THE XATn_* DEFINES DIRECTLY. CONSUMERS
* MUST USE THE XAT_* DEFINES.
*/
#define XAT0_INDEX 0LL /* Index into bitmap for XAT0 attrs */
#define XAT0_CREATETIME 0x00000001 /* Create time of file */
#define XAT0_ARCHIVE 0x00000002 /* Archive */
#define XAT0_SYSTEM 0x00000004 /* System */
#define XAT0_READONLY 0x00000008 /* Readonly */
#define XAT0_HIDDEN 0x00000010 /* Hidden */
#define XAT0_NOUNLINK 0x00000020 /* Nounlink */
#define XAT0_IMMUTABLE 0x00000040 /* immutable */
#define XAT0_APPENDONLY 0x00000080 /* appendonly */
#define XAT0_NODUMP 0x00000100 /* nodump */
#define XAT0_OPAQUE 0x00000200 /* opaque */
#define XAT0_AV_QUARANTINED 0x00000400 /* anti-virus quarantine */
#define XAT0_AV_MODIFIED 0x00000800 /* anti-virus modified */
#define XAT0_AV_SCANSTAMP 0x00001000 /* anti-virus scanstamp */
#define XAT0_REPARSE 0x00002000 /* FS reparse point */
#define XAT0_GEN 0x00004000 /* object generation number */
#define XAT0_OFFLINE 0x00008000 /* offline */
#define XAT0_SPARSE 0x00010000 /* sparse */
/* Support for XAT_* optional attributes */
#define XVA_MASK 0xffffffff /* Used to mask off 32 bits */
#define XVA_SHFT 32 /* Used to shift index */
/*
* Used to pry out the index and attribute bits from the XAT_* attributes
* defined below. Note that we're masking things down to 32 bits then
* casting to uint32_t.
*/
#define XVA_INDEX(attr) ((uint32_t)(((attr) >> XVA_SHFT) & XVA_MASK))
#define XVA_ATTRBIT(attr) ((uint32_t)((attr) & XVA_MASK))
/*
* The following defines present a "flat namespace" so that consumers don't
* need to keep track of which element belongs to which bitmap entry.
*
* NOTE THAT THESE MUST NEVER BE OR-ed TOGETHER
*/
#define XAT_CREATETIME ((XAT0_INDEX << XVA_SHFT) | XAT0_CREATETIME)
#define XAT_ARCHIVE ((XAT0_INDEX << XVA_SHFT) | XAT0_ARCHIVE)
#define XAT_SYSTEM ((XAT0_INDEX << XVA_SHFT) | XAT0_SYSTEM)
#define XAT_READONLY ((XAT0_INDEX << XVA_SHFT) | XAT0_READONLY)
#define XAT_HIDDEN ((XAT0_INDEX << XVA_SHFT) | XAT0_HIDDEN)
#define XAT_NOUNLINK ((XAT0_INDEX << XVA_SHFT) | XAT0_NOUNLINK)
#define XAT_IMMUTABLE ((XAT0_INDEX << XVA_SHFT) | XAT0_IMMUTABLE)
#define XAT_APPENDONLY ((XAT0_INDEX << XVA_SHFT) | XAT0_APPENDONLY)
#define XAT_NODUMP ((XAT0_INDEX << XVA_SHFT) | XAT0_NODUMP)
#define XAT_OPAQUE ((XAT0_INDEX << XVA_SHFT) | XAT0_OPAQUE)
#define XAT_AV_QUARANTINED ((XAT0_INDEX << XVA_SHFT) | XAT0_AV_QUARANTINED)
#define XAT_AV_MODIFIED ((XAT0_INDEX << XVA_SHFT) | XAT0_AV_MODIFIED)
#define XAT_AV_SCANSTAMP ((XAT0_INDEX << XVA_SHFT) | XAT0_AV_SCANSTAMP)
#define XAT_REPARSE ((XAT0_INDEX << XVA_SHFT) | XAT0_REPARSE)
#define XAT_GEN ((XAT0_INDEX << XVA_SHFT) | XAT0_GEN)
#define XAT_OFFLINE ((XAT0_INDEX << XVA_SHFT) | XAT0_OFFLINE)
#define XAT_SPARSE ((XAT0_INDEX << XVA_SHFT) | XAT0_SPARSE)
/*
* The returned attribute map array (xva_rtnattrmap[]) is located past the
* requested attribute map array (xva_reqattrmap[]). Its location changes
* when the array sizes change. We use a separate pointer in a known location
* (xva_rtnattrmapp) to hold the location of xva_rtnattrmap[]. This is
* set in xva_init()
*/
#define XVA_RTNATTRMAP(xvap) ((xvap)->xva_rtnattrmapp)
#define MODEMASK 07777 /* mode bits plus permission bits */
#define PERMMASK 00777 /* permission bits */
/*
* Flags for vnode operations.
*/
enum rm { RMFILE, RMDIRECTORY }; /* rm or rmdir (remove) */
enum create { CRCREAT, CRMKNOD, CRMKDIR }; /* reason for create */
/*
* Structure used by various vnode operations to determine
* the context (pid, host, identity) of a caller.
*
* The cc_caller_id is used to identify one or more callers who invoke
* operations, possibly on behalf of others. For example, the NFS
* server could have its own cc_caller_id which can be detected by
* vnode/vfs operations or (FEM) monitors on those operations. New
* caller IDs are generated by fs_new_caller_id().
*/
typedef struct caller_context {
pid_t cc_pid; /* Process ID of the caller */
int cc_sysid; /* System ID, used for remote calls */
u_longlong_t cc_caller_id; /* Identifier for (set of) caller(s) */
ulong_t cc_flags;
} caller_context_t;
struct taskq;
/*
* Flags for VOP_LOOKUP
*
* Defined in file.h, but also possible, FIGNORECASE and FSEARCH
*
*/
#define LOOKUP_DIR 0x01 /* want parent dir vp */
#define LOOKUP_XATTR 0x02 /* lookup up extended attr dir */
#define CREATE_XATTR_DIR 0x04 /* Create extended attr dir */
#define LOOKUP_HAVE_SYSATTR_DIR 0x08 /* Already created virtual GFS dir */
/*
* Public vnode manipulation functions.
*/
void vn_rele_async(struct vnode *vp, struct taskq *taskq);
#define VN_RELE_ASYNC(vp, taskq) { \
vn_rele_async(vp, taskq); \
}
/*
* Flags to VOP_SETATTR/VOP_GETATTR.
*/
#define ATTR_UTIME 0x01 /* non-default utime(2) request */
#define ATTR_EXEC 0x02 /* invocation from exec(2) */
#define ATTR_COMM 0x04 /* yield common vp attributes */
#define ATTR_HINT 0x08 /* information returned will be `hint' */
#define ATTR_REAL 0x10 /* yield attributes of the real vp */
#define ATTR_NOACLCHECK 0x20 /* Don't check ACL when checking permissions */
#define ATTR_TRIGGER 0x40 /* Mount first if vnode is a trigger mount */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_VNODE_H */
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