* Copyright (c) 2000-2016 Apple Inc. All rights reserved.
*
* @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
* 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
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
*/
#ifndef _SYS_FILE_INTERNAL_H_
-#define _SYS_FILE_INTERNAL_H_
+#define _SYS_FILE_INTERNAL_H_
#include <sys/appleapiopts.h>
#include <sys/fcntl.h>
#define FILEPROC_NULL (struct fileproc *)0
-#define FP_INCREATE 0x0001
-#define FP_INCLOSE 0x0002
-#define FP_INSELECT 0x0004
-#define FP_UNUSED 0x0008 /* unused (was FP_INCHRREAD) */
-#define FP_WRITTEN 0x0010
-#define FP_CLOSING 0x0020
-#define FP_WAITCLOSE 0x0040
-#define FP_AIOISSUED 0x0080
-#define FP_WAITEVENT 0x0100
-#define FP_SELCONFLICT 0x0200 /* select conflict on an individual fp */
+#define FP_INCREATE 0x0001
+#define FP_INCLOSE 0x0002
+#define FP_INSELECT 0x0004
+#define FP_UNUSED 0x0008 /* unused (was FP_INCHRREAD) */
+#define FP_WRITTEN 0x0010
+#define FP_CLOSING 0x0020
+#define FP_WAITCLOSE 0x0040
+#define FP_AIOISSUED 0x0080
+#define FP_WAITEVENT 0x0100
+#define FP_SELCONFLICT 0x0200 /* select conflict on an individual fp */
/* squeeze a "type" value into the upper flag bits */
-#define _FP_TYPESHIFT 24
-#define FP_TYPEMASK (0x7 << _FP_TYPESHIFT) /* 8 "types" of fileproc */
+#define _FP_TYPESHIFT 24
+#define FP_TYPEMASK (0x7 << _FP_TYPESHIFT) /* 8 "types" of fileproc */
-#define FILEPROC_TYPE(fp) ((fp)->f_flags & FP_TYPEMASK)
+#define FILEPROC_TYPE(fp) ((fp)->f_flags & FP_TYPEMASK)
#define FP_ISGUARDED(fp, attribs) \
((FILEPROC_TYPE(fp) == FTYPE_GUARDED) ? fp_isguarded(fp, attribs) : 0)
typedef enum {
- FTYPE_SIMPLE = 0,
- FTYPE_GUARDED = (1 << _FP_TYPESHIFT)
+ FTYPE_SIMPLE = 0,
+ FTYPE_GUARDED = (1 << _FP_TYPESHIFT)
} fileproc_type_t;
-#define FP_VALID_FLAGS (FP_INCREATE | FP_INCLOSE | FP_INSELECT |\
- FP_WRITTEN | FP_CLOSING | FP_WAITCLOSE |\
- FP_AIOISSUED | FP_WAITEVENT | FP_SELCONFLICT | _FP_TYPEMASK)
+#define FP_VALID_FLAGS (FP_INCREATE | FP_INCLOSE | FP_INSELECT |\
+ FP_WRITTEN | FP_CLOSING | FP_WAITCLOSE |\
+ FP_AIOISSUED | FP_WAITEVENT | FP_SELCONFLICT | _FP_TYPEMASK)
#ifndef _KAUTH_CRED_T
-#define _KAUTH_CRED_T
+#define _KAUTH_CRED_T
struct ucred;
typedef struct ucred *kauth_cred_t;
struct posix_cred;
typedef struct posix_cred *posix_cred_t;
-#endif /* !_KAUTH_CRED_T */
+#endif /* !_KAUTH_CRED_T */
/* file types */
typedef enum {
- DTYPE_VNODE = 1, /* file */
- DTYPE_SOCKET, /* communications endpoint */
- DTYPE_PSXSHM, /* POSIX Shared memory */
- DTYPE_PSXSEM, /* POSIX Semaphores */
- DTYPE_KQUEUE, /* kqueue */
- DTYPE_PIPE, /* pipe */
- DTYPE_FSEVENTS, /* fsevents */
- DTYPE_ATALK, /* (obsolete) */
- DTYPE_NETPOLICY, /* networking policy */
+ DTYPE_VNODE = 1, /* file */
+ DTYPE_SOCKET, /* communications endpoint */
+ DTYPE_PSXSHM, /* POSIX Shared memory */
+ DTYPE_PSXSEM, /* POSIX Semaphores */
+ DTYPE_KQUEUE, /* kqueue */
+ DTYPE_PIPE, /* pipe */
+ DTYPE_FSEVENTS, /* fsevents */
+ DTYPE_ATALK, /* (obsolete) */
+ DTYPE_NETPOLICY, /* networking policy */
} file_type_t;
/* defines for fg_lflags */
-#define FG_TERM 0x01 /* the fileglob is terminating .. */
-#define FG_INSMSGQ 0x02 /* insert to msgqueue pending .. */
-#define FG_WINSMSGQ 0x04 /* wait for the fielglob is in msgque */
-#define FG_RMMSGQ 0x08 /* the fileglob is being removed from msgqueue */
-#define FG_WRMMSGQ 0x10 /* wait for the fileglob to be removed from msgqueue */
-#define FG_PORTMADE 0x20 /* a port was at some point created for this fileglob */
-#define FG_NOSIGPIPE 0x40 /* don't deliver SIGPIPE with EPIPE return */
-#define FG_OFF_LOCKED 0x80 /* Used as a mutex for offset changes (for vnodes) */
-#define FG_OFF_LOCKWANT 0x100 /* Somebody's wating for the lock */
-#define FG_CONFINED 0x200 /* fileglob confined to process, immutably */
-#define FG_HAS_OFDLOCK 0x400 /* Has or has had an OFD lock */
+#define FG_TERM 0x01 /* the fileglob is terminating .. */
+#define FG_INSMSGQ 0x02 /* insert to msgqueue pending .. */
+#define FG_WINSMSGQ 0x04 /* wait for the fielglob is in msgque */
+#define FG_RMMSGQ 0x08 /* the fileglob is being removed from msgqueue */
+#define FG_WRMMSGQ 0x10 /* wait for the fileglob to be removed from msgqueue */
+#define FG_PORTMADE 0x20 /* a port was at some point created for this fileglob */
+#define FG_NOSIGPIPE 0x40 /* don't deliver SIGPIPE with EPIPE return */
+#define FG_OFF_LOCKED 0x80 /* Used as a mutex for offset changes (for vnodes) */
+#define FG_OFF_LOCKWANT 0x100 /* Somebody's wating for the lock */
+#define FG_CONFINED 0x200 /* fileglob confined to process, immutably */
+#define FG_HAS_OFDLOCK 0x400 /* Has or has had an OFD lock */
struct fileglob {
LIST_ENTRY(fileglob) f_msglist;/* list of active files */
- int32_t fg_flag; /* see fcntl.h */
- int32_t fg_count; /* reference count */
- int32_t fg_msgcount; /* references from message queue */
- int32_t fg_lflags; /* file global flags */
- kauth_cred_t fg_cred; /* credentials associated with descriptor */
+ int32_t fg_flag; /* see fcntl.h */
+ int32_t fg_count; /* reference count */
+ int32_t fg_msgcount; /* references from message queue */
+ int32_t fg_lflags; /* file global flags */
+ kauth_cred_t fg_cred; /* credentials associated with descriptor */
const struct fileops {
- file_type_t fo_type; /* descriptor type */
- int (*fo_read) (struct fileproc *fp, struct uio *uio,
- int flags, vfs_context_t ctx);
- int (*fo_write) (struct fileproc *fp, struct uio *uio,
- int flags, vfs_context_t ctx);
-#define FOF_OFFSET 0x00000001 /* offset supplied to vn_write */
-#define FOF_PCRED 0x00000002 /* cred from proc, not current thread */
- int (*fo_ioctl) (struct fileproc *fp, u_long com,
- caddr_t data, vfs_context_t ctx);
- int (*fo_select) (struct fileproc *fp, int which,
- void *wql, vfs_context_t ctx);
- int (*fo_close) (struct fileglob *fg, vfs_context_t ctx);
- int (*fo_kqfilter) (struct fileproc *fp, struct knote *kn,
- struct kevent_internal_s *kev, vfs_context_t ctx);
- int (*fo_drain) (struct fileproc *fp, vfs_context_t ctx);
+ file_type_t fo_type; /* descriptor type */
+ int (*fo_read) (struct fileproc *fp, struct uio *uio,
+ int flags, vfs_context_t ctx);
+ int (*fo_write) (struct fileproc *fp, struct uio *uio,
+ int flags, vfs_context_t ctx);
+#define FOF_OFFSET 0x00000001 /* offset supplied to vn_write */
+#define FOF_PCRED 0x00000002 /* cred from proc, not current thread */
+ int (*fo_ioctl)(struct fileproc *fp, u_long com,
+ caddr_t data, vfs_context_t ctx);
+ int (*fo_select) (struct fileproc *fp, int which,
+ void *wql, vfs_context_t ctx);
+ int (*fo_close) (struct fileglob *fg, vfs_context_t ctx);
+ int (*fo_kqfilter) (struct fileproc *fp, struct knote *kn,
+ struct kevent_internal_s *kev, vfs_context_t ctx);
+ int (*fo_drain) (struct fileproc *fp, vfs_context_t ctx);
} *fg_ops;
- off_t fg_offset;
- void *fg_data; /* vnode or socket or SHM or semaphore */
- void *fg_vn_data; /* Per fd vnode data, used for directories */
+ off_t fg_offset;
+ void *fg_data; /* vnode or socket or SHM or semaphore */
+ void *fg_vn_data; /* Per fd vnode data, used for directories */
lck_mtx_t fg_lock;
#if CONFIG_MACF
struct label *fg_label; /* JMM - use the one in the cred? */
#ifdef __APPLE_API_PRIVATE
LIST_HEAD(fmsglist, fileglob);
-extern struct fmsglist fmsghead; /* head of list of open files */
-extern int maxfiles; /* kernel limit on number of open files */
-extern int nfiles; /* actual number of open files */
+extern struct fmsglist fmsghead; /* head of list of open files */
+extern int maxfiles; /* kernel limit on number of open files */
+extern int nfiles; /* actual number of open files */
extern int maxfilesperproc;
-#define FILEGLOB_DTYPE(fg) ((const file_type_t)((fg)->fg_ops->fo_type))
+#define FILEGLOB_DTYPE(fg) ((const file_type_t)((fg)->fg_ops->fo_type))
#endif /* __APPLE_API_PRIVATE */
__BEGIN_DECLS
int fo_read(struct fileproc *fp, struct uio *uio, int flags, vfs_context_t ctx);
int fo_write(struct fileproc *fp, struct uio *uio, int flags,
- vfs_context_t ctx);
+ vfs_context_t ctx);
int fo_ioctl(struct fileproc *fp, u_long com, caddr_t data, vfs_context_t ctx);
int fo_select(struct fileproc *fp, int which, void *wql, vfs_context_t ctx);
int fo_close(struct fileglob *fg, vfs_context_t ctx);
int fo_kqfilter(struct fileproc *fp, struct knote *kn,
- struct kevent_internal_s *kev, vfs_context_t ctx);
+ struct kevent_internal_s *kev, vfs_context_t ctx);
void fileproc_drain(proc_t, struct fileproc *);
int fp_tryswap(proc_t, int fd, struct fileproc *nfp);
int fp_drop(struct proc *p, int fd, struct fileproc *fp, int locked);
projects / apple / xnu.git / blobdiff