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Diffstat (limited to 'sys/gnu/fs/xfs/xfs_attr.h')
| -rw-r--r-- | sys/gnu/fs/xfs/xfs_attr.h | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/sys/gnu/fs/xfs/xfs_attr.h b/sys/gnu/fs/xfs/xfs_attr.h deleted file mode 100644 index 6135b1b..0000000 --- a/sys/gnu/fs/xfs/xfs_attr.h +++ /dev/null @@ -1,172 +0,0 @@ -/* - * Copyright (c) 2000,2002-2003,2005 Silicon Graphics, Inc. - * All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it would be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ -#ifndef __XFS_ATTR_H__ -#define __XFS_ATTR_H__ - -/* - * xfs_attr.h - * - * Large attribute lists are structured around Btrees where all the data - * elements are in the leaf nodes. Attribute names are hashed into an int, - * then that int is used as the index into the Btree. Since the hashval - * of an attribute name may not be unique, we may have duplicate keys. - * The internal links in the Btree are logical block offsets into the file. - * - * Small attribute lists use a different format and are packed as tightly - * as possible so as to fit into the literal area of the inode. - */ - -/*======================================================================== - * External interfaces - *========================================================================*/ - -struct cred; -struct xfs_vnode; - -typedef int (*attrset_t)(struct xfs_vnode *, char *, void *, size_t, int); -typedef int (*attrget_t)(struct xfs_vnode *, char *, void *, size_t, int); -typedef int (*attrremove_t)(struct xfs_vnode *, char *, int); -typedef int (*attrexists_t)(struct xfs_vnode *); -typedef int (*attrcapable_t)(struct xfs_vnode *, struct cred *); - -typedef struct attrnames { - char * attr_name; - unsigned int attr_namelen; - unsigned int attr_flag; - attrget_t attr_get; - attrset_t attr_set; - attrremove_t attr_remove; - attrexists_t attr_exists; - attrcapable_t attr_capable; -} attrnames_t; - -#define ATTR_NAMECOUNT 4 -extern struct attrnames attr_user; -extern struct attrnames attr_secure; -extern struct attrnames attr_system; -extern struct attrnames attr_trusted; -extern struct attrnames *attr_namespaces[ATTR_NAMECOUNT]; - -extern attrnames_t *attr_lookup_namespace(char *, attrnames_t **, int); -extern int attr_generic_list(struct xfs_vnode *, void *, size_t, int, ssize_t *); - -#define ATTR_DONTFOLLOW 0x0001 /* -- unused, from IRIX -- */ -#define ATTR_ROOT 0x0002 /* use attrs in root (trusted) namespace */ -#define ATTR_TRUST 0x0004 /* -- unused, from IRIX -- */ -#define ATTR_SECURE 0x0008 /* use attrs in security namespace */ -#define ATTR_CREATE 0x0010 /* pure create: fail if attr already exists */ -#define ATTR_REPLACE 0x0020 /* pure set: fail if attr does not exist */ -#define ATTR_SYSTEM 0x0100 /* use attrs in system (pseudo) namespace */ - -#define ATTR_KERNACCESS 0x0400 /* [kernel] iaccess, inode held io-locked */ -#define ATTR_KERNOTIME 0x1000 /* [kernel] don't update inode timestamps */ -#define ATTR_KERNOVAL 0x2000 /* [kernel] get attr size only, not value */ -#define ATTR_KERNAMELS 0x4000 /* [kernel] list attr names (simple list) */ - -#define ATTR_KERNORMALS 0x0800 /* [kernel] normal attr list: user+secure */ -#define ATTR_KERNROOTLS 0x8000 /* [kernel] include root in the attr list */ -#define ATTR_KERNFULLS (ATTR_KERNORMALS|ATTR_KERNROOTLS) - -/* - * The maximum size (into the kernel or returned from the kernel) of an - * attribute value or the buffer used for an attr_list() call. Larger - * sizes will result in an ERANGE return code. - */ -#define ATTR_MAX_VALUELEN (64*1024) /* max length of a value */ - -/* - * Define how lists of attribute names are returned to the user from - * the attr_list() call. A large, 32bit aligned, buffer is passed in - * along with its size. We put an array of offsets at the top that each - * reference an attrlist_ent_t and pack the attrlist_ent_t's at the bottom. - */ -typedef struct attrlist { - __s32 al_count; /* number of entries in attrlist */ - __s32 al_more; /* T/F: more attrs (do call again) */ - __s32 al_offset[1]; /* byte offsets of attrs [var-sized] */ -} attrlist_t; - -/* - * Show the interesting info about one attribute. This is what the - * al_offset[i] entry points to. - */ -typedef struct attrlist_ent { /* data from attr_list() */ - __u32 a_valuelen; /* number bytes in value of attr */ - char a_name[1]; /* attr name (NULL terminated) */ -} attrlist_ent_t; - -/* - * Given a pointer to the (char*) buffer containing the attr_list() result, - * and an index, return a pointer to the indicated attribute in the buffer. - */ -#define ATTR_ENTRY(buffer, index) \ - ((attrlist_ent_t *) \ - &((char *)buffer)[ ((attrlist_t *)(buffer))->al_offset[index] ]) - -/* - * Multi-attribute operation vector. - */ -typedef struct attr_multiop { - int am_opcode; /* operation to perform (ATTR_OP_GET, etc.) */ - int am_error; /* [out arg] result of this sub-op (an errno) */ - char *am_attrname; /* attribute name to work with */ - char *am_attrvalue; /* [in/out arg] attribute value (raw bytes) */ - int am_length; /* [in/out arg] length of value */ - int am_flags; /* bitwise OR of attr API flags defined above */ -} attr_multiop_t; - -#define ATTR_OP_GET 1 /* return the indicated attr's value */ -#define ATTR_OP_SET 2 /* set/create the indicated attr/value pair */ -#define ATTR_OP_REMOVE 3 /* remove the indicated attr */ - -/* - * Kernel-internal version of the attrlist cursor. - */ -typedef struct attrlist_cursor_kern { - __u32 hashval; /* hash value of next entry to add */ - __u32 blkno; /* block containing entry (suggestion) */ - __u32 offset; /* offset in list of equal-hashvals */ - __u16 pad1; /* padding to match user-level */ - __u8 pad2; /* padding to match user-level */ - __u8 initted; /* T/F: cursor has been initialized */ -} attrlist_cursor_kern_t; - - -/*======================================================================== - * Function prototypes for the kernel. - *========================================================================*/ - -struct xfs_inode; -struct attrlist_cursor_kern; -struct xfs_da_args; - -/* - * Overall external interface routines. - */ -int xfs_attr_get(bhv_desc_t *, const char *, char *, int *, int, struct cred *); -int xfs_attr_set(bhv_desc_t *, const char *, char *, int, int, struct cred *); -int xfs_attr_remove(bhv_desc_t *, const char *, int, struct cred *); -int xfs_attr_list(bhv_desc_t *, char *, int, int, - struct attrlist_cursor_kern *, struct cred *); -int xfs_attr_inactive(struct xfs_inode *dp); - -int xfs_attr_shortform_getvalue(struct xfs_da_args *); -int xfs_attr_fetch(struct xfs_inode *, const char *, int, - char *, int *, int, struct cred *); - -#endif /* __XFS_ATTR_H__ */ |
