X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/8f6c56a50524aa785f7e596d52dddfb331e18961..7ee9d059c4eecf68ae4f8b0fb99ae2471eda79af:/bsd/sys/pipe.h

diff --git a/bsd/sys/pipe.h b/bsd/sys/pipe.h
index cf5f0d798..71557f0b0 100644
--- a/bsd/sys/pipe.h
+++ b/bsd/sys/pipe.h
@@ -47,6 +47,12 @@
  *
  * $FreeBSD: src/sys/sys/pipe.h,v 1.24 2003/08/13 20:01:38 alc Exp $
  */
+/*
+ * NOTICE: This file was modified by SPARTA, Inc. in 2006 to introduce
+ * support for mandatory and extensible security protections.  This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ */
 
 #ifndef _SYS_PIPE_H_
 #define _SYS_PIPE_H_
@@ -101,7 +107,6 @@ struct pipebuf {
 /*
  * Information to support direct transfers between processes for pipes.
  */
-/* LP64todo - not 64bit safe */
 struct pipemapping {
 	vm_offset_t	kva;		/* kernel virtual address */
 	vm_size_t	cnt;		/* number of chars in buffer */
@@ -124,9 +129,14 @@ struct pipemapping {
 #define PIPE_LWANT	0x200	/* Process wants exclusive access to pointers/data. */
 #define PIPE_DIRECTW	0x400	/* Pipe direct write active. */
 #define PIPE_DIRECTOK	0x800	/* Direct mode ok. */
-#define PIPE_KNOTE     0x1000   /* Pipe has kernel events activated */
+#define PIPE_KNOTE	0x1000   /* Pipe has kernel events activated */
+#define PIPE_DRAIN	0x2000  /* Waiting for I/O to drop for a close.  Treated like EOF;
+					only separate for easier debugging. */
 
 #ifdef	KERNEL
+
+struct label;
+
 /*
  * Per-pipe data structure.
  * Two of these are linked together to produce bi-directional pipes.
@@ -141,11 +151,12 @@ struct pipe {
 	struct	pipe *pipe_peer;	/* link with other direction */
 	u_int	pipe_state;		/* pipe status info */
 	int	pipe_busy;		/* busy flag, mostly to handle rundown sanely */
-#ifdef MAC
-	struct	label *pipe_label;	/* pipe MAC label - shared */
-#endif
 	TAILQ_HEAD(,eventqelt) pipe_evlist;
 	lck_mtx_t *pipe_mtxp;		/* shared mutex between both pipes */
+	struct	timespec st_atimespec;	/* time of last access */
+	struct	timespec st_mtimespec;	/* time of last data modification */
+	struct	timespec st_ctimespec;	/* time of last status change */
+	struct	label *pipe_label;	/* pipe MAC label - shared */
 };
 
 #define PIPE_MTX(pipe)		((pipe)->pipe_mtxp)
@@ -155,7 +166,8 @@ struct pipe {
 #define PIPE_LOCK_ASSERT(pipe, type)  lck_mtx_assert(PIPE_MTX(pipe), (type))
 
 __BEGIN_DECLS
-extern int pipe_stat(struct pipe *, struct stat *);
+void pipeinit(void);
+extern int pipe_stat(struct pipe *, void *, int);
 __END_DECLS
 
 #endif	/* KERNEL */