tools/fs_shell/vfs.cpp

99 /**	\brief Structure to manage a mounted file system
190 // file descriptor operation prototypes
478 /**	Tries to open the specified file system module.
479  *	Accepts a file system name of the form "bfs" or "file_systems/bfs/v1".
480  *	Returns a pointer to file system module interface, or NULL if it
503 /**	Accepts a file system name of the form "bfs" or "file_systems/bfs/v1"
516 		// the name already seems to be the module's file name
650 	// The file system has removed the resources of the vnode now, so we can
671  *		   a file system.
768  *		   a file system.
868 /**	Disconnects all file descriptors that are associated with the
1015 		// '/' are not allowed in file names!
1139 		// If a file system doesn't have the access() function, we assume that
1354 	// vnode so we get the underlying file system
1421  *	file system doesn't support this call, it will fall back to iterating
1429  *	paths aren't safe anyway: the path to a file can change at any time.
1599 	// ToDo: when we can close a file descriptor at any point, investigate
1629  *	If \a fd is a valid file descriptor, \a path may be NULL for directories,
1672 	// if the vnode is locked, we don't allow creating a new file descriptor for it
1727 	and calls the file system hooks to read/write the request to disk.
1736 		// There are no file vecs at this offset, so we're obviously trying
1737 		// to access the file outside of its bounds
1773 		// If the file portion was contiguous, we're already done now
1777 		// if we reached the end of the file, we can return as well
1895 	// file system integrity check:
2170 //! Works directly on the host's file system
2211 //! Works directly on the host's file system
2252 //! Works directly on the host's file system
2263 //! Works directly on the host's file system
2484 		// wrong mount ID - must not gain access on foreign file system nodes
2497 /**	Finds the full path to the file that contains the module \a moduleName,
2500  *	\c FSSH_B_ENTRY_NOT_FOUNT if no file could be found.
2509 	struct vnode *dir, *file;
2547 		status = vnode_path_to_vnode(dir, path, true, 0, &file, NULL);
2553 		if (FSSH_S_ISDIR(file->type)) {
2560 			dir = file;
2561 		} else if (FSSH_S_ISREG(file->type)) {
2562 			// it's a file so it should be what we've searched for
2563 			put_vnode(file);
2567 			TRACE(("vfs_get_module_path(): something is strange here: %d...\n", file->type));
2569 			dir = file;
2655 		// insert a directory separator only if this is not the file system root
2762 		// insert a directory separator if this is not the file system root
2787 /**	Closes all file descriptors of the specified I/O context that
2955  *	file descriptor for it
2998  *	file descriptor for it
3021  *	file descriptor for it
3034 	// file is opened, create a fd
3047  *	file descriptor for it.
3064 	// file is opened, create a fd
3084 	// get directory to put the new file in
3105 	// get directory to put the new file in
3546 			// Set file descriptor flags
3561 			// Get file descriptor flags
3569 			// Set file descriptor open mode
3585 			// Get file descriptor open mode
4090 	// now we only need a file descriptor for this attribute and we're done
4575 	// If the file system is not a "virtual" one, the device argument should
4576 	// point to a real file/device (if given at all).
4589 			// correct path to file device
4652 			// ToDo: why should we hide the error code from the file system here?
4687 	// the root node is supposed to be owned by the file system - it must
4691 		fssh_panic("fs_mount: file system does not own its root node!\n");
4771 			// The root vnode ref_count needs to be 2 here: one for the file
4803 		// the file system is still busy - but we're forced to unmount it,
4804 		// so let's disconnect all open file descriptors
4857 	// release the file system
4940 	// fill in info the file system doesn't (have to) know about
4951 	// if the call is not supported by the file system, there are still
5699 	// The partition argument should point to a real file/device.
5706 	// get the file system module
5723 	// put the file system module, close partition