X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=KernelLand%2FKernel%2Finclude%2Fvfs_ext.h;h=d18009d4db9218f669fba655f8ec4711d7c8a5da;hb=c34752b7ccc945a70a2d9b1e505aa4a4de43163b;hp=b4d5e2ad32a0bce13247ca6039339af7abdf6fc9;hpb=48743e39650eb1ef988380e9d95f27fd40d3a9ce;p=tpg%2Facess2.git

diff --git a/KernelLand/Kernel/include/vfs_ext.h b/KernelLand/Kernel/include/vfs_ext.h
index b4d5e2ad..d18009d4 100644
--- a/KernelLand/Kernel/include/vfs_ext.h
+++ b/KernelLand/Kernel/include/vfs_ext.h
@@ -13,6 +13,8 @@ typedef Uint64	tInode;
 typedef Uint32	tMount;
 
 // === CONSTANTS ===
+//! Maximum length of a filename (including NULL byte)
+#define FILENAME_MAX	256
 //! Maximum size of a Memory Path generated by VFS_GetMemPath
 #define	VFS_MEMPATH_SIZE	(3 + (BITS/4)*2)
 /**
@@ -20,15 +22,19 @@ typedef Uint32	tMount;
  * \{
  */
 //! Open for execution
-#define VFS_OPENFLAG_EXEC	0x01
+#define VFS_OPENFLAG_EXEC	0x001
 //! Open for reading
-#define VFS_OPENFLAG_READ	0x02
+#define VFS_OPENFLAG_READ	0x002
 //! Open for writing
-#define VFS_OPENFLAG_WRITE	0x04
+#define VFS_OPENFLAG_WRITE	0x004
 //! Do not resolve the final symbolic link
-#define	VFS_OPENFLAG_NOLINK	0x40
+#define	VFS_OPENFLAG_NOLINK	0x040
 //! Create the file if it doesn't exist
-#define VFS_OPENFLAG_CREATE	0x80
+#define VFS_OPENFLAG_CREATE	0x080
+//! Open file as non-blocking
+#define VFS_OPENFLAG_NONBLOCK	0x100
+//! Treat as a directory
+#define VFS_OPENFLAG_DIRECTORY	0x1000
 //! Open as a user
 #define	VFS_OPENFLAG_USER	0x8000
 /**
@@ -112,14 +118,16 @@ enum eVFS_SeekDirs
  */
 typedef struct sVFS_ACL
 {
+	//! ACL entity selection
 	struct {
 		unsigned Group:	1;	//!< Group (as opposed to user) flag
 		unsigned ID:	31;	//!< ID of Group/User (-1 for nobody/world)
-	};
+	} Ent;
+	//! ACL Permissions mask
 	struct {
 		unsigned Inv:	1;	//!< Invert Permissions
 		unsigned Perms:	31;	//!< Permission Flags
-	};
+	} Perm;
 } tVFS_ACL;
 
 /**
@@ -140,6 +148,10 @@ typedef struct sFInfo
 	tVFS_ACL	acls[];	//!< ACL buffer (size is passed in the \a MaxACLs argument to VFS_FInfo)
 } PACKED tFInfo;
 
+// --- fd_set --
+#include "../../../Usermode/Libraries/ld-acess.so_src/include_exp/acess/fd_set.h"
+
+#if 0
 /**
  * \brief fd_set for select()
  */
@@ -167,6 +179,7 @@ typedef struct
  * \param fdsetp	Set to modify
  */
 #define FD_ISSET(fd, fdsetp) ((fdsetp)->flags[(fd)/16]&(1<<((fd)%16)))
+#endif
 
 // === FUNCTIONS ===
 /**
@@ -209,12 +222,29 @@ extern int	VFS_OpenChild(int FD, const char *Name, Uint Mode);
  */
 extern int	VFS_OpenInode(Uint32 Mount, Uint64 Inode, int Mode);
 
+/**
+ * \brief Open a file reusing an old FD
+ */
+extern int	VFS_Reopen(int FD, const char *Path, int Flags);
+
 /**
  * \brief Close a currently open file
  * \param FD	Handle returned by ::VFS_Open
  */
 extern void	VFS_Close(int FD);
 
+/**
+ * \brief Copy one FD to another
+ * \param SrcFD	Source file descriptor
+ * \param DstFD	Destination file descriptor (-1 means allocate new)
+ */
+extern int	VFS_DuplicateFD(int SrcFD, int DstFD);
+
+/**
+ * \brief Update the flags on a FD
+ */
+extern int	VFS_SetFDFlags(int FD, int Mask, int Value);
+
 /**
  * \brief Get file information from an open file
  * \param FD	File handle returned by ::VFS_Open
@@ -274,7 +304,7 @@ extern Uint64	VFS_Tell(int FD);
  * \param Buffer	Destination of read data
  * \return Number of read bytes
  */
-extern Uint64	VFS_Read(int FD, Uint64 Length, void *Buffer);
+extern size_t	VFS_Read(int FD, size_t Length, void *Buffer);
 /**
  * \brief Writes data to a file
  * \param FD	File handle returned by ::VFS_Open
@@ -282,7 +312,7 @@ extern Uint64	VFS_Read(int FD, Uint64 Length, void *Buffer);
  * \param Buffer	Source of written data
  * \return Number of bytes written
  */
-extern Uint64	VFS_Write(int FD, Uint64 Length, const void *Buffer);
+extern size_t	VFS_Write(int FD, size_t Length, const void *Buffer);
 
 /**
  * \brief Reads from a specific offset in the file
@@ -292,7 +322,7 @@ extern Uint64	VFS_Write(int FD, Uint64 Length, const void *Buffer);
  * \param Buffer	Source of read data
  * \return Number of bytes read
  */
-extern Uint64	VFS_ReadAt(int FD, Uint64 Offset, Uint64 Length, void *Buffer);
+extern size_t	VFS_ReadAt(int FD, Uint64 Offset, size_t Length, void *Buffer);
 /**
  * \brief Writes to a specific offset in the file
  * \param FD	File handle returned by ::VFS_Open
@@ -301,7 +331,7 @@ extern Uint64	VFS_ReadAt(int FD, Uint64 Offset, Uint64 Length, void *Buffer);
  * \param Buffer	Source of written data
  * \return Number of bytes written
  */
-extern Uint64	VFS_WriteAt(int FD, Uint64 Offset, Uint64 Length, const void *Buffer);
+extern size_t	VFS_WriteAt(int FD, Uint64 Offset, size_t Length, const void *Buffer);
 
 /**
  * \brief Sends an IOCtl request to the driver
@@ -336,6 +366,19 @@ extern char	*VFS_GetTruePath(const char *Path);
  * \return 1 on succes, -1 on error
  */
 extern int	VFS_Mount(const char *Device, const char *MountPoint, const char *Filesystem, const char *Options);
+/**
+ * \brief Unmount a mounted filesystem
+ * \param Mountpoint	Location of the mount
+ * \return 0 on success, errno on error
+ */
+extern int	VFS_Unmount(const char *Mountpoint);
+/**
+ * \brief Attemt to unmount all fileystems
+ * \return Number of unmounted filesytems, -1 if none left to unmount
+ * \note Can return 0 when there are stil volumes mounted if there are open handles
+ */
+extern int	VFS_UnmountAll(void);
+
 /**
  * \brief Create a new directory
  * \param Path	Path to new directory (absolute or relative)
@@ -353,10 +396,10 @@ extern int	VFS_Symlink(const char *Name, const char *Link);
 /**
  * \brief Read from a directory
  * \param FD	File handle returned by ::VFS_Open
- * \param Dest	Destination array for the file name (max 255 bytes)
+ * \param Dest	Destination array for the file name (max FILENAME_MAX bytes)
  * \return Boolean Success
  */
-extern int	VFS_ReadDir(int FD, char *Dest);
+extern int	VFS_ReadDir(int FD, char Dest[FILENAME_MAX]);
 /**
  * \brief Wait for an aciton on a file descriptor
  * \param MaxHandle	Maximum set handle in \a *Handles