X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/c0fea4742e91338fffdcf79f86a7c1d5e2b97eb1..7ee9d059c4eecf68ae4f8b0fb99ae2471eda79af:/bsd/sys/file_internal.h?ds=sidebyside diff --git a/bsd/sys/file_internal.h b/bsd/sys/file_internal.h index f9a57d390..9fcb4d1f3 100644 --- a/bsd/sys/file_internal.h +++ b/bsd/sys/file_internal.h @@ -1,23 +1,29 @@ /* - * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2007 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * 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. 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. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * 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, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * 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_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */ /* @@ -82,7 +88,7 @@ struct file; * One entry for each open kernel vnode and socket. */ struct fileproc { - int32_t f_flags; + unsigned int f_flags; int32_t f_iocount; struct fileglob * f_fglob; void * f_waddr; @@ -93,71 +99,78 @@ struct fileproc { #define FP_INCREATE 0x0001 #define FP_INCLOSE 0x0002 #define FP_INSELECT 0x0004 -#define FP_INCHRREAD 0x0008 +#define FP_INCHRREAD 0x0000 /* disable 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_VALID_FLAGS (FP_INCREATE | FP_INCLOSE | FP_INSELECT | FP_INCHRREAD | FP_WRITTEN | FP_CLOSING | FP_WAITCLOSE | FP_AIOISSUED | FP_WAITEVENT | FP_SELCONFLICT) + +#ifndef _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 */ -/* defns of close_internal */ -#define CLOSEINT_LOCKED 1 -#define CLOSEINT_WAITONCLOSE 2 -#define CLOSEINT_NOFDRELSE 4 -#define CLOSEINT_NOFDNOREF 8 +/* 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 */ +} 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 */ struct fileglob { LIST_ENTRY(fileglob) f_list;/* list of active files */ LIST_ENTRY(fileglob) f_msglist;/* list of active files */ int32_t fg_flag; /* see fcntl.h */ - int32_t fg_type; /* descriptor type */ + file_type_t fg_type; /* descriptor type */ int32_t fg_count; /* reference count */ int32_t fg_msgcount; /* references from message queue */ - struct ucred *fg_cred; /* credentials associated with descriptor */ + kauth_cred_t fg_cred; /* credentials associated with descriptor */ struct fileops { - int (*fo_read) __P((struct fileproc *fp, struct uio *uio, - struct ucred *cred, int flags, - struct proc *p)); - int (*fo_write) __P((struct fileproc *fp, struct uio *uio, - struct ucred *cred, int flags, - struct proc *p)); + 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) __P((struct fileproc *fp, u_long com, - caddr_t data, struct proc *p)); - int (*fo_select) __P((struct fileproc *fp, int which, - void *wql, struct proc *p)); - int (*fo_close) __P((struct fileglob *fg, struct proc *p)); - int (*fo_kqfilter) __P((struct fileproc *fp, struct knote *kn, - struct proc *p)); - int (*fo_drain) (struct fileproc *fp, struct proc *p); + 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, + vfs_context_t ctx); + int (*fo_drain) (struct fileproc *fp, vfs_context_t ctx); } *fg_ops; off_t fg_offset; - caddr_t fg_data; /* vnode or socket or SHM or semaphore */ + void *fg_data; /* vnode or socket or SHM or semaphore */ lck_mtx_t fg_lock; int32_t fg_lflags; /* file global flags */ - unsigned int fg_lockpc[4]; - unsigned int fg_unlockpc[4]; +#if CONFIG_MACF + struct label *fg_label; /* JMM - use the one in the cred? */ +#endif }; -/* file types */ -#define DTYPE_VNODE 1 /* file */ -#define DTYPE_SOCKET 2 /* communications endpoint */ -#define DTYPE_PSXSHM 3 /* POSIX Shared memory */ -#define DTYPE_PSXSEM 4 /* POSIX Semaphores */ -#define DTYPE_KQUEUE 5 /* kqueue */ -#define DTYPE_PIPE 6 /* pipe */ -#define DTYPE_FSEVENTS 7 /* fsevents */ - -/* 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 */ - - #ifdef __APPLE_API_PRIVATE LIST_HEAD(filelist, fileglob); LIST_HEAD(fmsglist, fileglob); @@ -165,24 +178,19 @@ extern struct filelist filehead; /* head of list 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; #endif /* __APPLE_API_PRIVATE */ __BEGIN_DECLS -int fo_read(struct fileproc *fp, struct uio *uio, - struct ucred *cred, int flags, struct proc *p); -int fo_write(struct fileproc *fp, struct uio *uio, - struct ucred *cred, int flags, struct proc *p); -int fo_ioctl(struct fileproc *fp, u_long com, caddr_t data, - struct proc *p); -int fo_select(struct fileproc *fp, int which, void *wql, - struct proc *p); -int fo_close(struct fileglob *fg, struct proc *p); -int fo_kqfilter(struct fileproc *fp, struct knote *kn, - struct proc *p); +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); +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, vfs_context_t ctx); void fileproc_drain(proc_t, struct fileproc *); -void fp_setflags(proc_t, struct fileproc *, int); -void fp_clearflags(proc_t, struct fileproc *, int); int fp_drop(struct proc *p, int fd, struct fileproc *fp, int locked); int fp_drop_written(proc_t p, int fd, struct fileproc *fp); int fp_drop_event(proc_t p, int fd, struct fileproc *fp); @@ -203,10 +211,17 @@ int fp_getfvpandvid(struct proc *p, int fd, struct fileproc **resultfp, struct v struct socket; int fp_getfsock(struct proc *p, int fd, struct fileproc **resultfp, struct socket **results); int fp_lookup(struct proc *p, int fd, struct fileproc **resultfp, int locked); -int close_internal(struct proc *p, int fd, struct fileproc *fp, int flags); int closef_locked(struct fileproc *fp, struct fileglob *fg, struct proc *p); void fg_insertuipc(struct fileglob * fg); void fg_removeuipc(struct fileglob * fg); +void unp_gc_wait(void); +void procfdtbl_reservefd(struct proc * p, int fd); +void procfdtbl_markclosefd(struct proc * p, int fd); +void procfdtbl_releasefd(struct proc * p, int fd, struct fileproc * fp); +void procfdtbl_waitfd(struct proc * p, int fd); +void procfdtbl_clearfd(struct proc * p, int fd); +boolean_t filetype_issendable(file_type_t type); +extern int fdgetf_noref(proc_t, int, struct fileproc **); __END_DECLS #endif /* __APPLE_API_UNSTABLE */