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* Update company nameSebastian Huber2023-05-201-1/+1
| | | | | The embedded brains GmbH & Co. KG is the legal successor of embedded brains GmbH.
* cpukit/libfs/src/imfs: Change license to BSD-2Joel Sherrill2022-03-221-3/+22
| | | | Updates #3053.
* doxygen: Switch @brief and @ingroupSebastian Huber2020-04-281-1/+2
| | | | This order change fixes the Latex documentation build via Doxygen.
* Canonicalize config.h includeSebastian Huber2020-04-161-2/+2
| | | | | | | | Use the following variant which was already used by most source files: #ifdef HAVE_CONFIG_H #include "config.h" #endif
* IMFS: Include <rtems/imfs.h>Sebastian Huber2017-12-131-1/+1
| | | | | | Prepare for header file move to common include directory. Update #3254.
* Change all references of rtems.com to rtems.org.Chris Johns2014-03-211-1/+1
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* libfs: Doxygen Enhancement Task #1Alex Ivanov2012-12-201-5/+7
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* Filesystem: Reject removal of root nodesSebastian Huber2012-10-071-4/+1
| | | | | | | Reject the removal of file system instance root nodes in rmdir() and unlink() and return the EBUSY error status. File system instances can be removed with unmount(). Remove root node special cases in IMFS, DOSFS, and RFS.
* Remove All CVS Id Strings Possible Using a ScriptJoel Sherrill2012-05-111-2/+0
| | | | | | | | | | | | Script does what is expected and tries to do it as smartly as possible. + remove occurrences of two blank comment lines next to each other after Id string line removed. + remove entire comment blocks which only exited to contain CVS Ids + If the processing left a blank line at the top of a file, it was removed.
* IMFS: Add and use node controlSebastian Huber2012-03-131-58/+7
| | | | | | Add and use structure IMFS_node_control with support functions. This helps to make high level functions independent of the node type and reduces the number of branches in the code.
* IMFS: Reference counting for nodesSebastian Huber2012-03-131-34/+6
| | | | | The introduction of reference counting of nodes avoids the removal of open nodes and potential usage of freed memory.
* IMFS: Use unprotected chain operationsSebastian Huber2012-03-131-2/+1
| | | | | Directory entry add or removal operations are protected by the file system instance lock. There is no need for protected chain operations.
* Filesystem: Reference counting for locationsSebastian Huber2012-03-131-20/+72
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | o A new data structure rtems_filesystem_global_location_t was introduced to be used for o the mount point location in the mount table entry, o the file system root location in the mount table entry, o the root directory location in the user environment, and o the current directory location in the user environment. During the path evaluation global start locations are obtained to ensure that the current file system instance will be not unmounted in the meantime. o The user environment uses now reference counting and is protected from concurrent access. o The path evaluation process was completely rewritten and simplified. The IMFS, RFS, NFS, and DOSFS use now a generic path evaluation method. Recursive calls in the path evaluation have been replaced with iteration to avoid stack overflows. Only the evaluation of symbolic links is recursive. No dynamic memory allocations and intermediate buffers are used in the high level path evaluation. No global locks are held during the file system instance specific path evaluation process. o Recursive symbolic link evaluation is now limited by RTEMS_FILESYSTEM_SYMLOOP_MAX. Applications can retrieve this value via sysconf(). o The device file system (devFS) uses now no global variables and allocation from the workspace. Node names are allocated from the heap. o The upper layer lseek() performs now some parameter checks. o The upper layer ftruncate() performs now some parameter checks. o unmask() is now restricted to the RWX flags and protected from concurrent access. o The fchmod_h and rmnod_h file system node handlers are now a file system operation. o The unlink_h operation has been removed. All nodes are now destroyed with the rmnod_h operation. o New lock_h, unlock_h, clonenod_h, and are_nodes_equal_h file system operations. o The path evaluation and file system operations are now protected by per file system instance lock and unlock operations. o Fix and test file descriptor duplicate in fcntl(). o New test fstests/fsnofs01.
* 2010-06-08 Sebastian Huber <sebastian.huber@embedded-brains.de>Sebastian Huber2010-06-081-43/+36
| | | | | | | | | | | * libfs/src/imfs/imfs.h, libfs/src/imfs/imfs_rmnod.c: Added and use IMFS_create_orphan() and IMFS_check_node_remove(). * libfs/src/imfs/deviceio.c, libfs/src/imfs/imfs_directory.c, libfs/src/imfs/imfs_fifo.c: Use IMFS_create_orphan() and IMFS_check_node_remove(). * libfs/src/imfs/imfs_handlers_memfile.c, libfs/src/imfs/memfile.c: Use IMFS_rmnod() and IMFS_check_node_remove() instead of memfile_rmnod() and memfile_check_rmnod().
* 2009-06-12 Chris Johns <chrisj@rtems.org>Chris Johns2009-06-121-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * libblock/src/bdbuf.c: Update comments. * libblock/src/bdpart.c, libblock/src/ide_part_table.c: Get the device from the rdev field of the stat buf. * libcsupport/include/rtems/libio.h: Add a path length to evalpath handler. Add parent locations to rmmod and unlink handlers. * libcsupport/include/rtems/libio_.h: Add a path length to rtems_filesystem_evaluate_path. Add rtems_filesystem_evaluate_relative_path, rtems_filesystem_dirname, and rtems_filesystem_prefix_separators. Remove rtems_filesystem_evaluate_parent. * libcsupport/src/base_fs.c, libcsupport/src/chdir.c, libcsupport/src/chmod.c, libcsupport/src/chown.c, libcsupport/src/chroot.c, libcsupport/src/fchdir.c, libcsupport/src/link.c, libcsupport/src/mount.c, libcsupport/src/open.c, libcsupport/src/privateenv.c, libcsupport/src/readlink.c, libcsupport/src/unmount.c, libcsupport/src/utime.c, libcsupport/src/unmount.c, libcsupport/src/utime.c, libfs/src/devfs/devfs.h, libfs/src/devfs/devfs_eval.c, libfs/src/devfs/devstat.c, libfs/src/dosfs/msdos_create.c, libfs/src/dosfs/msdos_misc.c, libfs/src/imfs/imfs.h, libfs/src/imfs/imfs_eval.c, libfs/src/imfs/imfs_load_tar.c, libfs/src/imfs/ioman.c, libfs/src/pipe/pipe.c, libmisc/fsmount/fsmount.c, libnetworking/lib/ftpfs.c: Add the length parameter to the eval call. * libcsupport/src/eval.c: Add rtems_filesystem_prefix_separators, rtems_filesystem_dirname, rtems_filesystem_evaluate_relative_path. Add the length parameter to the eval call. * libcsupport/src/rmdir.c: Find the parent pathloc then the node pathloc from that node. Remove the call to find the parent given the node pathloc. * libcsupport/src/stat.c: Add the length parameter to the eval call. Set the device into the rdev field. * libcsupport/src/unlink.c: Find the parent pathloc then the node pathloc from that node. Remove the call to find the parent given the node pathloc. * libfs/src/dosfs/fat.c, libfs/src/dosfs/msdos_format.c: Get the disk device number from the stat rdev field. * libfs/src/dosfs/msdos.h: Add the length parameter to the eval call. Add the parent pathloc to the rmnod handler. * libfs/src/dosfs/msdos_dir.c: Add the parent pathloc to the rmnod handler. * libfs/src/dosfs/msdos_eval.c: Add the length parameter to the eval and token call. * libfs/src/imfs/imfs_directory.c: Add the parent pathloc to the rmnod handler. * libfs/src/imfs/imfs_fchmod.c: Do not test the mode flags for only the allowed flags. Add the missing flags spec'ed in the POSIX standard. * libfs/src/imfs/imfs_fsunmount.c, libfs/src/imfs/imfs_rmnod.c, libfs/src/imfs/imfs_unlink.c, libfs/src/imfs/memfile.c: Add the parent node. Currently ignored in the IMFS. * libfs/src/imfs/imfs_stat.c: Return the device number in the rdev field. * libfs/src/imfs/imfs_mknod.c, libfs/src/imfs/imfs_symlink.c : Add the length parameter to the token call. * libfs/src/nfsclient/src/nfs.c: Add the length parameter to the eval call and parent node to the rmnod and unlink command. * libmisc/shell/internal.h: Remove the libc mounter decl to make public. * libmisc/shell/main_mount.c: Add support for hooking external mount support for new file systems. * libmisc/shell/shell.h: Add helper functions for the mount command.
* 2008-07-03 Chris Johns <chrisj@rtems.org>Chris Johns2008-07-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * cpukit/libcsupport/include/chain.h: Removed. Use the SAPI interface that is supported. * cpukit/libcsupport/Makefile.am, cpukit/libcsupport/preinstall.am: Remove chain.h header references. * cpukit/sapi/include/rtems/chain.h, cpukit/sapi/inline/rtems/chain.inl: New. A supported chains interface. * cpukit/sapi/Makefile.am, cpukit/sapi/preinstall.am: Updated to include the new chains interface. * cpukit/libfs/src/imfs/imfs.h, cpukit/libfs/src/imfs/imfs_creat.c, cpukit/libfs/src/imfs/imfs_debug.c, cpukit/libfs/src/imfs/imfs_directory.c, cpukit/libfs/src/imfs/imfs_fsunmount.c, cpukit/libfs/src/imfs/imfs_getchild.c, cpukit/libfs/src/imfs/imfs_load_tar.c, cpukit/libfs/src/imfs/imfs_rmnod.c, cpukit/libfs/src/imfs/memfile.c, cpukit/libfs/src/nfsclient/src/nfs.c, cpukit/libcsupport/include/rtems/libio.h, cpukit/libcsupport/src/malloc_deferred.c, cpukit/libcsupport/src/mount.c, cpukit/libcsupport/src/privateenv.c, cpukit/libcsupport/src/unmount.c: Change to the new chains interface. * cpukit/libcsupport/src/malloc_boundary.c: Remove warning.
* 2007-04-16 Joel Sherrill <joel@OARcorp.com>Joel Sherrill2007-04-161-0/+4
| | | | | | PR 1240/filesystem * libfs/src/imfs/imfs_rmnod.c: Fix link when removing a symlink. Memory for filename was not being freed.
* Remove stray white spaces.Ralf Corsepius2004-04-171-4/+4
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* Remove stray white spaces.Ralf Corsepius2004-04-151-3/+0
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* 2003-09-04 Joel Sherrill <joel@OARcorp.com>Joel Sherrill2003-09-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * src/dosfs/dosfs.h, src/dosfs/fat.h, src/dosfs/fat_fat_operations.h, src/dosfs/fat_file.h, src/dosfs/msdos.h, src/dosfs/msdos_create.c, src/dosfs/msdos_dir.c, src/dosfs/msdos_eval.c, src/dosfs/msdos_file.c, src/dosfs/msdos_free.c, src/dosfs/msdos_fsunmount.c, src/dosfs/msdos_handlers_dir.c, src/dosfs/msdos_handlers_file.c, src/dosfs/msdos_init.c, src/dosfs/msdos_initsupp.c, src/dosfs/msdos_misc.c, src/dosfs/msdos_mknod.c, src/dosfs/msdos_node_type.c, src/imfs/deviceio.c, src/imfs/imfs.h, src/imfs/imfs_chown.c, src/imfs/imfs_config.c, src/imfs/imfs_creat.c, src/imfs/imfs_debug.c, src/imfs/imfs_directory.c, src/imfs/imfs_eval.c, src/imfs/imfs_fchmod.c, src/imfs/imfs_fcntl.c, src/imfs/imfs_fdatasync.c, src/imfs/imfs_free.c, src/imfs/imfs_fsunmount.c, src/imfs/imfs_getchild.c, src/imfs/imfs_gtkn.c, src/imfs/imfs_handlers_device.c, src/imfs/imfs_handlers_directory.c, src/imfs/imfs_handlers_link.c, src/imfs/imfs_handlers_memfile.c, src/imfs/imfs_init.c, src/imfs/imfs_initsupp.c, src/imfs/imfs_link.c, src/imfs/imfs_mknod.c, src/imfs/imfs_mount.c, src/imfs/imfs_ntype.c, src/imfs/imfs_readlink.c, src/imfs/imfs_rmnod.c, src/imfs/imfs_stat.c, src/imfs/imfs_symlink.c, src/imfs/imfs_unixstub.c, src/imfs/imfs_unlink.c, src/imfs/imfs_unmount.c, src/imfs/imfs_utime.c, src/imfs/ioman.c, src/imfs/linearfile.c, src/imfs/memfile.c, src/imfs/miniimfs_init.c: URL for license changed.
* 2002-01-07 Ralf Corsepius <corsepiu@faw.uni-ulm.de>Joel Sherrill2002-01-081-0/+2
| | | | | | * src/imfs/imfs_load_tar.c: Add include <sys/types.h>. Add include <sys/stat.h>. Add include <fcntl.h>. * src/imfs/imfs_rmnod.c: Add include <stdlib.h>.
* 2001-01-22 Ralf Corsepius <corsepiu@faw.uni-ulm.de>Joel Sherrill2001-01-221-0/+4
| | | | | | | * configure.in: Add src/imfs/config.h * src/imfs/Makefile.am: Add INCLUDES += -I. to pickup config.h * src/imfs/.cvsignore: Add config.h and stamp-h * src/imfs/*.c: Add config.h support.
* 2000-11-01 Joel Sherrill <joel@OARcorp.com>Joel Sherrill2000-11-011-1/+1
| | | | | | | | | | | | | | | | | * src/imfs/Makefile.am, src/imfs/deviceio.c, src/imfs/imfs_chown.c, src/imfs/imfs_config.c, src/imfs/imfs_creat.c, src/imfs/imfs_debug.c, src/imfs/imfs_directory.c, src/imfs/imfs_eval.c, src/imfs/imfs_fchmod.c, src/imfs/imfs_free.c, src/imfs/imfs_fsunmount.c, src/imfs/imfs_gtkn.c, src/imfs/imfs_init.c, src/imfs/imfs_initsupp.c, src/imfs/imfs_link.c, src/imfs/imfs_mknod.c, src/imfs/imfs_mount.c, src/imfs/imfs_readlink.c, src/imfs/imfs_rmnod.c, src/imfs/imfs_stat.c, src/imfs/imfs_symlink.c, src/imfs/imfs_unixstub.c, src/imfs/imfs_unlink.c, src/imfs/imfs_unmount.c, src/imfs/imfs_utime.c, src/imfs/ioman.c, src/imfs/memfile.c, src/imfs/miniimfs_init.c: assoc.h, error.h, libio_.h, libio.h, and libcsupport.h moved from libc to lib/include/rtems and now must be referenced as <rtems/XXX.h>. Now we do not have to reach up and over to libc to pick them up.
* Updated copyright notice.Joel Sherrill1999-11-171-2/+1
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* Fixed commentJennifer Averett1999-11-051-1/+1
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* Unmount was failing as a side-effect of splitting the rmnod handlerJoel Sherrill1999-11-051-0/+77
| | | | and not handling every case properly.
* The object memfile.o was being included in the miniIMFS even though itJoel Sherrill1999-11-021-98/+0
| | | | | | | should not have been. This required that IMFS_rmnod be split into three separate (per file type) routines to avoid dependencies. In the end, a miniIMFS application is 6K smaller than one using the full IMFS.
* Spacing.Joel Sherrill1999-10-121-0/+1
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* Added base version of file system infrastructure. This includes a majorJoel Sherrill1998-11-231-0/+97
overhaul of the RTEMS system call interface. This base file system is the "In-Memory File System" aka IMFS. The design and implementation was done by the following people: + Joel Sherrill (joel@OARcorp.com) + Jennifer Averett (jennifer@OARcorp.com) + Steve "Mr Mount" Salitasc (salitasc@OARcorp.com) + Kerwin Wade (wade@OARcorp.com) PROBLEMS ======== + It is VERY likely that merging this will break the UNIX port. This can/will be fixed. + There is likely some reentrancy/mutual exclusion needed. + Eventually, there should be a "mini-IMFS" description table to eliminate links, symlinks, etc to save memory. All you need to have "classic RTEMS" functionality is technically directories and device IO. All the rest could be left out to save memory.
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