X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=KernelLand%2FKernel%2Finclude%2Fvfs_ext.h;h=00eeebb5fef0bf152ceddc291d12297e700ae8ba;hb=3f9b3f4cb91ce4ada9c892e6f2a3c69dbb9debd6;hp=8cabfa18f4facde6afe5c071c7d083237a28c96c;hpb=4842e2d6740bcb81da4e94019285bfd2c45425b8;p=tpg%2Facess2.git diff --git a/KernelLand/Kernel/include/vfs_ext.h b/KernelLand/Kernel/include/vfs_ext.h index 8cabfa18..00eeebb5 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) /** @@ -30,7 +32,7 @@ typedef Uint32 tMount; //! Create the file if it doesn't exist #define VFS_OPENFLAG_CREATE 0x80 //! Treat as a directory -#define VFS_OPENFLAG_DIRECTORY 0x100 +#define VFS_OPENFLAG_DIRECTORY 0x1000 //! Open as a user #define VFS_OPENFLAG_USER 0x8000 /** @@ -114,14 +116,16 @@ 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; /** @@ -142,6 +146,10 @@ 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() */ @@ -169,6 +177,7 @@ typedef struct * \param fdsetp Set to modify */ #define FD_ISSET(fd, fdsetp) ((fdsetp)->flags[(fd)/16]&(1<<((fd)%16))) +#endif // === FUNCTIONS === /** @@ -217,6 +226,18 @@ extern int VFS_OpenInode(Uint32 Mount, Uint64 Inode, int Mode); */ 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 @@ -276,7 +297,7 @@ 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 @@ -284,7 +305,7 @@ 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 @@ -294,7 +315,7 @@ 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 @@ -303,7 +324,7 @@ 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 @@ -368,10 +389,10 @@ 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