/*
- * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
#ifdef BSD_KERNEL_PRIVATE
+/* VFS Supports "/..namedfork/rsrc" access. */
+#define NAMEDRSRCFORK NAMEDSTREAMS
+
+
#include <sys/queue.h>
#include <sys/uio.h>
#include <sys/vnode.h>
#ifdef KERNEL
/*
* namei operational modifier flags, stored in ni_cnd.flags
+ * Also includes LOCKLEAF, LOCKPARENT, and WANTPARENT flags, defined above.
*/
-#define NOCACHE 0x0020 /* name must not be left in cache */
-#define NOFOLLOW 0x0000 /* do not follow symbolic links (pseudo) */
-#define SHAREDLEAF 0x0080 /* OK to have shared leaf lock */
-#define MODMASK 0x00fc /* mask of operational modifiers */
+#define NOCACHE 0x00000020 /* name must not be left in cache */
+#define NOFOLLOW 0x00000000 /* do not follow symbolic links (pseudo) */
+/* public FOLLOW 0x00000040 see vnode.h */
+#define SHAREDLEAF 0x00000080 /* OK to have shared leaf lock */
+/* public NOTRIGGER 0x10000000 see vnode.h */
+#define MODMASK 0x100000fc /* mask of operational modifiers */
/*
* Namei parameter descriptors.
*
* name being sought. The caller is responsible for releasing the
* buffer and for vrele'ing ni_startdir.
*/
+#define SAVENAME 0 /* save pathanme buffer ***obsolete */
#define NOCROSSMOUNT 0x00000100 /* do not cross mount points */
#define RDONLY 0x00000200 /* lookup with read-only semantics */
#define HASBUF 0x00000400 /* has allocated pathname buffer */
-#define SAVENAME 0x00000800 /* save pathanme buffer */
+#define DONOTAUTH 0x00000800 /* do not authorize during lookup */
#define SAVESTART 0x00001000 /* save starting directory */
+/* public ISDOTDOT 0x00002000 see vnode.h */
+/* public MAKEENTRY 0x00004000 see vnode.h */
+/* public ISLASTCN 0x00008000 see vnode.h */
#define ISSYMLINK 0x00010000 /* symlink needs interpretation */
-#define DONOTAUTH 0x00020000 /* do not authorize during lookup */
+/* public ISWHITEOUT 0x00020000 see vnode.h */
+/* public DOWHITEOUT 0x00040000 see vnode.h */
#define WILLBEDIR 0x00080000 /* new files will be dirs; allow trailing / */
#define AUDITVNPATH1 0x00100000 /* audit the path/vnode info */
#define AUDITVNPATH2 0x00200000 /* audit the path/vnode info */
#define USEDVP 0x00400000 /* start the lookup at ndp.ni_dvp */
-#define PARAMASK 0x003fff00 /* mask of parameter descriptors */
+#define CN_VOLFSPATH 0x00800000 /* user path was a volfs style path */
+#ifndef __LP64__
#define FSNODELOCKHELD 0x01000000
+#endif /* __LP64__ */
+#define UNIONCREATED 0x02000000 /* union fs creation of vnode */
+#if NAMEDRSRCFORK
+#define CN_WANTSRSRCFORK 0x04000000
+#define CN_ALLOWRSRCFORK 0x08000000
+#endif
+/* public NOTRIGGER 0x10000000 see vnode.h */
+#define CN_NBMOUNTLOOK 0x20000000 /* do not block for cross mount lookups */
/*
* Initialization of an nameidata structure.
if ((segflg) == UIO_USERSPACE) { \
(ndp)->ni_segflg = ((IS_64BIT_PROCESS(vfs_context_proc(ctx))) ? UIO_USERSPACE64 : UIO_USERSPACE32); \
} \
- else if ((segflg) == UIO_SYSSPACE) { \
- (ndp)->ni_segflg = UIO_SYSSPACE32; \
- } \
else { \
(ndp)->ni_segflg = segflg; \
} \
* names looked up by namei.
*/
-#define NCHNAMLEN 31 /* maximum name segment length we bother with */
#define NCHASHMASK 0x7fffffff
struct namecache {
vnode_t nc_vp; /* vnode the name refers to */
unsigned int nc_whiteout:1, /* name has whiteout applied */
nc_hashval:31; /* hashval of stringname */
- char * nc_name; /* pointer to segment name in string cache */
+ const char *nc_name; /* pointer to segment name in string cache */
};
*/
void cache_purgevfs(mount_t mp);
int cache_lookup_path(struct nameidata *ndp, struct componentname *cnp, vnode_t dp,
- vfs_context_t context, int *trailing_slash, int *dp_authorized);
+ vfs_context_t context, int *trailing_slash, int *dp_authorized, vnode_t last_dp);
-void vnode_cache_credentials(vnode_t vp, vfs_context_t context);
-void vnode_uncache_credentials(vnode_t vp);
-int reverse_lookup(vnode_t start_vp, vnode_t *lookup_vpp,
- struct filedesc *fdp, vfs_context_t context, int *dp_authorized);
+void vnode_cache_authorized_action(vnode_t vp, vfs_context_t context, kauth_action_t action);
+void vnode_uncache_authorized_action(vnode_t vp, kauth_action_t action);
+boolean_t vnode_cache_is_stale(vnode_t vp);
+boolean_t vnode_cache_is_authorized(vnode_t vp, vfs_context_t context, kauth_action_t action);
#endif /* KERNEL */
* Stats on usefulness of namei caches.
*/
struct nchstats {
- long ncs_negtotal;
long ncs_goodhits; /* hits that we can really use */
long ncs_neghits; /* negative hits that we can use */
long ncs_badhits; /* hits we must drop */
projects / apple / xnu.git / blobdiff