2007-05-12 22:07:51 +02:00
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/****************************************************************************
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2014-09-28 19:28:17 +02:00
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* fs/mount/fs_mount.c
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2007-05-12 22:07:51 +02:00
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*
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2019-03-19 15:39:05 +01:00
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* Copyright (C) 2007-2009, 2011-2013, 2015, 2017-2019 Gregory Nutt. All
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2018-11-08 16:51:06 +01:00
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* rights reserved.
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2012-02-15 18:51:30 +01:00
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* Author: Gregory Nutt <gnutt@nuttx.org>
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2007-05-12 22:07:51 +02:00
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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2008-01-01 00:52:53 +01:00
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* 3. Neither the name NuttX nor the names of its contributors may be
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2007-05-12 22:07:51 +02:00
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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2009-12-15 01:18:32 +01:00
|
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|
|
2007-05-12 22:07:51 +02:00
|
|
|
#include <sys/mount.h>
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2017-02-04 18:46:54 +01:00
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|
|
#include <stdbool.h>
|
2007-05-12 22:07:51 +02:00
|
|
|
#include <string.h>
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|
|
|
#include <errno.h>
|
2011-04-30 01:50:38 +02:00
|
|
|
#include <assert.h>
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|
|
#include <debug.h>
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|
2012-03-21 19:01:07 +01:00
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|
#include <nuttx/fs/fs.h>
|
2008-08-02 16:25:34 +02:00
|
|
|
|
2014-09-29 15:14:38 +02:00
|
|
|
#include "inode/inode.h"
|
|
|
|
#include "driver/driver.h"
|
2007-05-12 22:07:51 +02:00
|
|
|
|
|
|
|
/* At least one filesystem must be defined, or this file will not compile.
|
2018-09-22 22:20:18 +02:00
|
|
|
* It may be desire-able to make file systems dynamically registered at
|
2007-05-12 22:07:51 +02:00
|
|
|
* some time in the future, but at present, this file needs to know about
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|
|
|
* every configured filesystem.
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|
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*/
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2008-09-10 21:29:24 +02:00
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#ifdef CONFIG_FS_READABLE
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2007-05-12 22:07:51 +02:00
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|
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|
|
/****************************************************************************
|
2009-12-15 01:18:32 +01:00
|
|
|
* Pre-processor Definitions
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2007-05-12 22:07:51 +02:00
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****************************************************************************/
|
2019-03-01 22:00:00 +01:00
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2011-04-30 01:50:38 +02:00
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|
/* Configuration ************************************************************/
|
2019-03-01 22:00:00 +01:00
|
|
|
|
2011-04-30 01:50:38 +02:00
|
|
|
/* In the canonical case, a file system is bound to a block driver. However,
|
|
|
|
* some less typical cases a block driver is not required. Examples are
|
2019-03-19 15:39:05 +01:00
|
|
|
* pseudo file systems (like BINFS or PROCFS) and MTD file systems (like
|
|
|
|
* NXFFS).
|
2011-04-30 01:50:38 +02:00
|
|
|
*
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|
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* These file systems all require block drivers:
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|
|
|
*/
|
|
|
|
|
2013-11-15 14:21:52 +01:00
|
|
|
#if defined(CONFIG_FS_FAT) || defined(CONFIG_FS_ROMFS) || \
|
2019-01-27 19:31:28 +01:00
|
|
|
defined(CONFIG_FS_SMARTFS) || defined(CONFIG_FS_LITTLEFS)
|
2011-04-30 01:50:38 +02:00
|
|
|
# define BDFS_SUPPORT 1
|
|
|
|
#endif
|
|
|
|
|
2018-09-22 22:20:18 +02:00
|
|
|
/* These file systems require MTD drivers */
|
|
|
|
|
2019-01-09 21:26:51 +01:00
|
|
|
#if defined(CONFIG_FS_SPIFFS) || defined(CONFIG_FS_LITTLEFS)
|
This commit brings in an inital port of the SPIFFS flash file system into NuttX. The file system is still untested at this point (and subject to some additional review). It is, however, marked EXPERIMENTAL should this should not cause a problem for anyone.
Squashed commit of the following:
fs/spiffs: Fix last compilation issue. Now compiles without error. It is still not quite ready for testing as there is additional code review that must be be performed. It is now marked as EXPERIMENTAL so that it can be brought onto the master branch with little risk.
fs/spiffs: Remove some dead code.
fs/spiffs: Weak start of analysis of spiffs_nucleus.c. Renamed to spiffs_core.c
fs/spiffs: Rename spiffs_nucleus.c to spiffs_core.c
fs/spiffs: Remove spiffs_config.h. All configuration settings are now available in the SPIFFS Kconfig options.
fs/spiffs: Finished review, update, and repartitioning of spiffs_check.c. Added spiffs_check.h.
fs/spiffs: Finished review, update, and repartitioning of spiffs_cache.c. Added spiffs_cache.h.
fs/spiffs: Clean up some defines used in debug output statements.
fs/spiffs: Finished review, update, and repartitioning of spiffs_gc.c. Added spiffs_gc.h.
fs/spiffs: Now that VFS interface is completed, I have begun the long march of repartitioning the remaining functionality, reviewing logic, identifying dead code, and cleaning up loose ends.
fs/spiffs: Initial integration of MTD interface, replacing the SPIFFS native flash interface. Lots of open issues such as the use of pages vs. blocks vs. erase blocks and units of addresses, offsets, and lengths that are passed in function calls. Remove SPIFFS_USE_MAGIC support. That option (which default to OFF anyway), wrote a magic value at the beginning of every sector and support verifiable identification of the file system. It was not being and used and removing it makes life simpler.
fs/spiffs: Remove semaphore lock on the file object structure. Ultimately, the file access must modify the volume and access the volume structue which also has a exclusivity lock. So use of the volume lock alone should be sufficient.
Integrated the SPIFFS rename logic into the NuttX VFS. Removed non-standard application calls or convert them to IOCTL commands. These were converted to IOCTL commands: (1) integrity check, (2) garbage collection, and (3) format flash. These were removed: (1) Integrity check callback. These provided a lot of good information about the state of the file system, but such callbacks are not compatible with a POSIX compliant file system. (2) Index maps. The index maps were a performance improvement feature. The user could provide the memory and request that a region of a a file use that memory for improved lookup performance when accessing parts of the file. The fallback is the less performance lookup by traversing the FLASH memory. (3) Removed the quick garbage collection interface (the code is still used internally). Only the full garbage collection is available to the user application via IOCTL.
configs/sim/spiffs: A simulator configuration to use for testing SPIFFS.
fs/spiffs: Integrate SPIFFS logic into NuttX VFS bind() and unbind() methods.
fs/mount/fs_mount.c: Add SPIFFS to the list of drivers that require MTD vs block drivers.
fs/spiffs: Trivial changes, mostly from analysis of how to integrate the rename() VFS method.
fs/spiffs: Connect NuttX VFS unlink method to the SPIFFS_remove() function. Lots of name-changing.
fs/spiffs: Remove non-standard errno support. Remove bogus SPIFFS_LOCK() and SPIFFS_UNLOCK() macros.
fs/spiffs: Add NuttX VFS implementation for statfs() method. Clean up some of the accumulating compilation problems.
fs/spiffs: Add stat(), truncate() methods. Dummy out unsupport mkdir() and rmdir() methods.
fs/spiffs: Replace some of the custom error numbers with standard error numbers.
fs/spiffs: Hooks read(), write(), fstat(), ioctl(), opendir(), closedir(), rewindif(), and readdir() into the NuttX VFS.
fs/spiffs: Beginning the organization to work with the NuttX VFS. Lots of things are get broken!
fs/spiffs: Add spiffs.c which will be the interface between SPIFFS and NuttX. No very close at present, however.
fs/spiffs: Clean up some compile problems introduced by coding standard changes.
fs/spiffs: A little closer to NuttX coding standard.
fs/spiffs: Ran tools/indent.sh against all files. Closer to NuttX coding standard, but needs a lot more effort to be fully compliant.
fs/spiffs: This commit brings in version 0.3.7 of Peter Anderson's SPIFFS. The initial commit includes the core FS files (with some definitions destributed to their correct header files) and hooks into the build system.
2018-09-25 02:05:09 +02:00
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# define MDFS_SUPPORT 1
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|
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#endif
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2018-09-22 22:20:18 +02:00
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/* These file systems do not require block or MTD drivers */
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2011-04-30 01:50:38 +02:00
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2013-11-13 22:59:14 +01:00
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#if defined(CONFIG_FS_NXFFS) || defined(CONFIG_FS_BINFS) || \
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2015-10-09 19:02:59 +02:00
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defined(CONFIG_FS_PROCFS) || defined(CONFIG_NFS) || \
|
2018-03-19 14:08:40 +01:00
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defined(CONFIG_FS_TMPFS) || defined(CONFIG_FS_USERFS) || \
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2019-03-19 15:39:05 +01:00
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defined(CONFIG_FS_CROMFS) || defined(CONFIG_FS_UNIONFS)
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2018-09-22 22:20:18 +02:00
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# define NODFS_SUPPORT
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2011-04-30 01:50:38 +02:00
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#endif
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2007-05-12 22:07:51 +02:00
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|
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/****************************************************************************
|
|
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* Private Types
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|
|
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****************************************************************************/
|
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struct fsmap_t
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|
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{
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2011-04-30 01:50:38 +02:00
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FAR const char *fs_filesystemtype;
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FAR const struct mountpt_operations *fs_mops;
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2007-05-12 22:07:51 +02:00
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};
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|
|
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|
|
|
|
/****************************************************************************
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2016-02-22 01:08:58 +01:00
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* Private Data
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2007-05-12 22:07:51 +02:00
|
|
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****************************************************************************/
|
|
|
|
|
2011-04-30 01:50:38 +02:00
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#ifdef BDFS_SUPPORT
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2018-09-22 22:20:18 +02:00
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/* File systems that require block drivers */
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|
|
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2007-05-12 22:07:51 +02:00
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#ifdef CONFIG_FS_FAT
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extern const struct mountpt_operations fat_operations;
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#endif
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2008-09-10 21:29:24 +02:00
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#ifdef CONFIG_FS_ROMFS
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extern const struct mountpt_operations romfs_operations;
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#endif
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2013-05-01 04:13:30 +02:00
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#ifdef CONFIG_FS_SMARTFS
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extern const struct mountpt_operations smartfs_operations;
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#endif
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2019-01-27 19:31:28 +01:00
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#ifdef CONFIG_FS_LITTLEFS
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extern const struct mountpt_operations littlefs_operations;
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#endif
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2007-05-12 22:07:51 +02:00
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2011-04-30 01:50:38 +02:00
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static const struct fsmap_t g_bdfsmap[] =
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2007-05-12 22:07:51 +02:00
|
|
|
{
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|
|
|
#ifdef CONFIG_FS_FAT
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|
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{ "vfat", &fat_operations },
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2008-09-10 21:29:24 +02:00
|
|
|
#endif
|
|
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#ifdef CONFIG_FS_ROMFS
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{ "romfs", &romfs_operations },
|
2013-05-01 04:13:30 +02:00
|
|
|
#endif
|
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#ifdef CONFIG_FS_SMARTFS
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{ "smartfs", &smartfs_operations },
|
2019-01-27 19:31:28 +01:00
|
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|
#endif
|
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|
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#ifdef CONFIG_FS_LITTLEFS
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{ "littlefs", &littlefs_operations },
|
2011-04-30 01:50:38 +02:00
|
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|
#endif
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{ NULL, NULL },
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};
|
2018-09-22 22:20:18 +02:00
|
|
|
#endif /* BDFS_SUPPORT */
|
|
|
|
|
|
|
|
#ifdef MDFS_SUPPORT
|
|
|
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/* File systems that require MTD drivers */
|
|
|
|
|
2019-01-27 19:07:37 +01:00
|
|
|
#ifdef CONFIG_FS_ROMFS
|
|
|
|
extern const struct mountpt_operations romfs_operations;
|
|
|
|
#endif
|
This commit brings in an inital port of the SPIFFS flash file system into NuttX. The file system is still untested at this point (and subject to some additional review). It is, however, marked EXPERIMENTAL should this should not cause a problem for anyone.
Squashed commit of the following:
fs/spiffs: Fix last compilation issue. Now compiles without error. It is still not quite ready for testing as there is additional code review that must be be performed. It is now marked as EXPERIMENTAL so that it can be brought onto the master branch with little risk.
fs/spiffs: Remove some dead code.
fs/spiffs: Weak start of analysis of spiffs_nucleus.c. Renamed to spiffs_core.c
fs/spiffs: Rename spiffs_nucleus.c to spiffs_core.c
fs/spiffs: Remove spiffs_config.h. All configuration settings are now available in the SPIFFS Kconfig options.
fs/spiffs: Finished review, update, and repartitioning of spiffs_check.c. Added spiffs_check.h.
fs/spiffs: Finished review, update, and repartitioning of spiffs_cache.c. Added spiffs_cache.h.
fs/spiffs: Clean up some defines used in debug output statements.
fs/spiffs: Finished review, update, and repartitioning of spiffs_gc.c. Added spiffs_gc.h.
fs/spiffs: Now that VFS interface is completed, I have begun the long march of repartitioning the remaining functionality, reviewing logic, identifying dead code, and cleaning up loose ends.
fs/spiffs: Initial integration of MTD interface, replacing the SPIFFS native flash interface. Lots of open issues such as the use of pages vs. blocks vs. erase blocks and units of addresses, offsets, and lengths that are passed in function calls. Remove SPIFFS_USE_MAGIC support. That option (which default to OFF anyway), wrote a magic value at the beginning of every sector and support verifiable identification of the file system. It was not being and used and removing it makes life simpler.
fs/spiffs: Remove semaphore lock on the file object structure. Ultimately, the file access must modify the volume and access the volume structue which also has a exclusivity lock. So use of the volume lock alone should be sufficient.
Integrated the SPIFFS rename logic into the NuttX VFS. Removed non-standard application calls or convert them to IOCTL commands. These were converted to IOCTL commands: (1) integrity check, (2) garbage collection, and (3) format flash. These were removed: (1) Integrity check callback. These provided a lot of good information about the state of the file system, but such callbacks are not compatible with a POSIX compliant file system. (2) Index maps. The index maps were a performance improvement feature. The user could provide the memory and request that a region of a a file use that memory for improved lookup performance when accessing parts of the file. The fallback is the less performance lookup by traversing the FLASH memory. (3) Removed the quick garbage collection interface (the code is still used internally). Only the full garbage collection is available to the user application via IOCTL.
configs/sim/spiffs: A simulator configuration to use for testing SPIFFS.
fs/spiffs: Integrate SPIFFS logic into NuttX VFS bind() and unbind() methods.
fs/mount/fs_mount.c: Add SPIFFS to the list of drivers that require MTD vs block drivers.
fs/spiffs: Trivial changes, mostly from analysis of how to integrate the rename() VFS method.
fs/spiffs: Connect NuttX VFS unlink method to the SPIFFS_remove() function. Lots of name-changing.
fs/spiffs: Remove non-standard errno support. Remove bogus SPIFFS_LOCK() and SPIFFS_UNLOCK() macros.
fs/spiffs: Add NuttX VFS implementation for statfs() method. Clean up some of the accumulating compilation problems.
fs/spiffs: Add stat(), truncate() methods. Dummy out unsupport mkdir() and rmdir() methods.
fs/spiffs: Replace some of the custom error numbers with standard error numbers.
fs/spiffs: Hooks read(), write(), fstat(), ioctl(), opendir(), closedir(), rewindif(), and readdir() into the NuttX VFS.
fs/spiffs: Beginning the organization to work with the NuttX VFS. Lots of things are get broken!
fs/spiffs: Add spiffs.c which will be the interface between SPIFFS and NuttX. No very close at present, however.
fs/spiffs: Clean up some compile problems introduced by coding standard changes.
fs/spiffs: A little closer to NuttX coding standard.
fs/spiffs: Ran tools/indent.sh against all files. Closer to NuttX coding standard, but needs a lot more effort to be fully compliant.
fs/spiffs: This commit brings in version 0.3.7 of Peter Anderson's SPIFFS. The initial commit includes the core FS files (with some definitions destributed to their correct header files) and hooks into the build system.
2018-09-25 02:05:09 +02:00
|
|
|
#ifdef CONFIG_FS_SPIFFS
|
|
|
|
extern const struct mountpt_operations spiffs_operations;
|
|
|
|
#endif
|
2019-01-09 21:26:51 +01:00
|
|
|
#ifdef CONFIG_FS_LITTLEFS
|
|
|
|
extern const struct mountpt_operations littlefs_operations;
|
|
|
|
#endif
|
|
|
|
|
2018-09-22 22:20:18 +02:00
|
|
|
static const struct fsmap_t g_mdfsmap[] =
|
|
|
|
{
|
2019-01-27 19:07:37 +01:00
|
|
|
#ifdef CONFIG_FS_ROMFS
|
|
|
|
{ "romfs", &romfs_operations },
|
|
|
|
#endif
|
This commit brings in an inital port of the SPIFFS flash file system into NuttX. The file system is still untested at this point (and subject to some additional review). It is, however, marked EXPERIMENTAL should this should not cause a problem for anyone.
Squashed commit of the following:
fs/spiffs: Fix last compilation issue. Now compiles without error. It is still not quite ready for testing as there is additional code review that must be be performed. It is now marked as EXPERIMENTAL so that it can be brought onto the master branch with little risk.
fs/spiffs: Remove some dead code.
fs/spiffs: Weak start of analysis of spiffs_nucleus.c. Renamed to spiffs_core.c
fs/spiffs: Rename spiffs_nucleus.c to spiffs_core.c
fs/spiffs: Remove spiffs_config.h. All configuration settings are now available in the SPIFFS Kconfig options.
fs/spiffs: Finished review, update, and repartitioning of spiffs_check.c. Added spiffs_check.h.
fs/spiffs: Finished review, update, and repartitioning of spiffs_cache.c. Added spiffs_cache.h.
fs/spiffs: Clean up some defines used in debug output statements.
fs/spiffs: Finished review, update, and repartitioning of spiffs_gc.c. Added spiffs_gc.h.
fs/spiffs: Now that VFS interface is completed, I have begun the long march of repartitioning the remaining functionality, reviewing logic, identifying dead code, and cleaning up loose ends.
fs/spiffs: Initial integration of MTD interface, replacing the SPIFFS native flash interface. Lots of open issues such as the use of pages vs. blocks vs. erase blocks and units of addresses, offsets, and lengths that are passed in function calls. Remove SPIFFS_USE_MAGIC support. That option (which default to OFF anyway), wrote a magic value at the beginning of every sector and support verifiable identification of the file system. It was not being and used and removing it makes life simpler.
fs/spiffs: Remove semaphore lock on the file object structure. Ultimately, the file access must modify the volume and access the volume structue which also has a exclusivity lock. So use of the volume lock alone should be sufficient.
Integrated the SPIFFS rename logic into the NuttX VFS. Removed non-standard application calls or convert them to IOCTL commands. These were converted to IOCTL commands: (1) integrity check, (2) garbage collection, and (3) format flash. These were removed: (1) Integrity check callback. These provided a lot of good information about the state of the file system, but such callbacks are not compatible with a POSIX compliant file system. (2) Index maps. The index maps were a performance improvement feature. The user could provide the memory and request that a region of a a file use that memory for improved lookup performance when accessing parts of the file. The fallback is the less performance lookup by traversing the FLASH memory. (3) Removed the quick garbage collection interface (the code is still used internally). Only the full garbage collection is available to the user application via IOCTL.
configs/sim/spiffs: A simulator configuration to use for testing SPIFFS.
fs/spiffs: Integrate SPIFFS logic into NuttX VFS bind() and unbind() methods.
fs/mount/fs_mount.c: Add SPIFFS to the list of drivers that require MTD vs block drivers.
fs/spiffs: Trivial changes, mostly from analysis of how to integrate the rename() VFS method.
fs/spiffs: Connect NuttX VFS unlink method to the SPIFFS_remove() function. Lots of name-changing.
fs/spiffs: Remove non-standard errno support. Remove bogus SPIFFS_LOCK() and SPIFFS_UNLOCK() macros.
fs/spiffs: Add NuttX VFS implementation for statfs() method. Clean up some of the accumulating compilation problems.
fs/spiffs: Add stat(), truncate() methods. Dummy out unsupport mkdir() and rmdir() methods.
fs/spiffs: Replace some of the custom error numbers with standard error numbers.
fs/spiffs: Hooks read(), write(), fstat(), ioctl(), opendir(), closedir(), rewindif(), and readdir() into the NuttX VFS.
fs/spiffs: Beginning the organization to work with the NuttX VFS. Lots of things are get broken!
fs/spiffs: Add spiffs.c which will be the interface between SPIFFS and NuttX. No very close at present, however.
fs/spiffs: Clean up some compile problems introduced by coding standard changes.
fs/spiffs: A little closer to NuttX coding standard.
fs/spiffs: Ran tools/indent.sh against all files. Closer to NuttX coding standard, but needs a lot more effort to be fully compliant.
fs/spiffs: This commit brings in version 0.3.7 of Peter Anderson's SPIFFS. The initial commit includes the core FS files (with some definitions destributed to their correct header files) and hooks into the build system.
2018-09-25 02:05:09 +02:00
|
|
|
#ifdef CONFIG_FS_SPIFFS
|
|
|
|
{ "spiffs", &spiffs_operations },
|
|
|
|
#endif
|
2019-01-09 21:26:51 +01:00
|
|
|
#ifdef CONFIG_FS_LITTLEFS
|
|
|
|
{ "littlefs", &littlefs_operations },
|
|
|
|
#endif
|
2019-01-27 19:07:37 +01:00
|
|
|
{ NULL, NULL },
|
2018-09-22 22:20:18 +02:00
|
|
|
};
|
|
|
|
#endif /* MDFS_SUPPORT */
|
|
|
|
|
|
|
|
#ifdef NODFS_SUPPORT
|
|
|
|
/* File systems that require neither block nor MTD drivers */
|
2011-04-30 01:50:38 +02:00
|
|
|
|
|
|
|
#ifdef CONFIG_FS_NXFFS
|
|
|
|
extern const struct mountpt_operations nxffs_operations;
|
|
|
|
#endif
|
2016-05-11 14:48:30 +02:00
|
|
|
#ifdef CONFIG_FS_TMPFS
|
|
|
|
extern const struct mountpt_operations tmpfs_operations;
|
|
|
|
#endif
|
2012-04-21 01:15:41 +02:00
|
|
|
#ifdef CONFIG_NFS
|
|
|
|
extern const struct mountpt_operations nfs_operations;
|
|
|
|
#endif
|
2013-01-16 16:41:27 +01:00
|
|
|
#ifdef CONFIG_FS_BINFS
|
|
|
|
extern const struct mountpt_operations binfs_operations;
|
|
|
|
#endif
|
2013-11-13 22:59:14 +01:00
|
|
|
#ifdef CONFIG_FS_PROCFS
|
|
|
|
extern const struct mountpt_operations procfs_operations;
|
|
|
|
#endif
|
2017-10-31 01:04:28 +01:00
|
|
|
#ifdef CONFIG_FS_USERFS
|
|
|
|
extern const struct mountpt_operations userfs_operations;
|
|
|
|
#endif
|
2015-11-25 15:26:26 +01:00
|
|
|
#ifdef CONFIG_FS_HOSTFS
|
|
|
|
extern const struct mountpt_operations hostfs_operations;
|
|
|
|
#endif
|
2018-03-19 14:08:40 +01:00
|
|
|
#ifdef CONFIG_FS_CROMFS
|
|
|
|
extern const struct mountpt_operations cromfs_operations;
|
|
|
|
#endif
|
2019-03-19 15:39:05 +01:00
|
|
|
#ifdef CONFIG_FS_UNIONFS
|
|
|
|
extern const struct mountpt_operations unionfs_operations;
|
|
|
|
#endif
|
2011-04-30 01:50:38 +02:00
|
|
|
|
|
|
|
static const struct fsmap_t g_nonbdfsmap[] =
|
|
|
|
{
|
|
|
|
#ifdef CONFIG_FS_NXFFS
|
|
|
|
{ "nxffs", &nxffs_operations },
|
2011-03-28 02:05:58 +02:00
|
|
|
#endif
|
2015-10-09 19:02:59 +02:00
|
|
|
#ifdef CONFIG_FS_TMPFS
|
|
|
|
{ "tmpfs", &tmpfs_operations },
|
|
|
|
#endif
|
2012-04-21 01:15:41 +02:00
|
|
|
#ifdef CONFIG_NFS
|
|
|
|
{ "nfs", &nfs_operations },
|
|
|
|
#endif
|
2013-01-16 16:41:27 +01:00
|
|
|
#ifdef CONFIG_FS_BINFS
|
2011-03-28 02:05:58 +02:00
|
|
|
{ "binfs", &binfs_operations },
|
2007-05-12 22:07:51 +02:00
|
|
|
#endif
|
2013-11-13 22:59:14 +01:00
|
|
|
#ifdef CONFIG_FS_PROCFS
|
|
|
|
{ "procfs", &procfs_operations },
|
2015-11-25 15:26:26 +01:00
|
|
|
#endif
|
2017-10-31 01:04:28 +01:00
|
|
|
#ifdef CONFIG_FS_USERFS
|
|
|
|
{ "userfs", &userfs_operations },
|
|
|
|
#endif
|
2015-11-25 15:26:26 +01:00
|
|
|
#ifdef CONFIG_FS_HOSTFS
|
|
|
|
{ "hostfs", &hostfs_operations },
|
2018-03-19 14:08:40 +01:00
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_FS_CROMFS
|
|
|
|
{ "cromfs", &cromfs_operations },
|
2019-03-19 15:39:05 +01:00
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_FS_UNIONFS
|
|
|
|
{ "unionfs", &unionfs_operations },
|
2013-11-13 22:59:14 +01:00
|
|
|
#endif
|
|
|
|
{ NULL, NULL },
|
2007-05-12 22:07:51 +02:00
|
|
|
};
|
2018-09-22 22:20:18 +02:00
|
|
|
#endif /* NODFS_SUPPORT */
|
2007-05-12 22:07:51 +02:00
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Private Functions
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Name: mount_findfs
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* find the specified filesystem
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
2018-09-22 22:20:18 +02:00
|
|
|
#if defined(BDFS_SUPPORT) || defined(MDFS_SUPPORT) || defined(NODFS_SUPPORT)
|
2011-04-30 01:50:38 +02:00
|
|
|
static FAR const struct mountpt_operations *
|
|
|
|
mount_findfs(FAR const struct fsmap_t *fstab, FAR const char *filesystemtype)
|
2007-05-12 22:07:51 +02:00
|
|
|
{
|
2011-04-30 01:50:38 +02:00
|
|
|
FAR const struct fsmap_t *fsmap;
|
2012-07-14 23:05:40 +02:00
|
|
|
|
2011-04-30 01:50:38 +02:00
|
|
|
for (fsmap = fstab; fsmap->fs_filesystemtype; fsmap++)
|
2007-05-12 22:07:51 +02:00
|
|
|
{
|
|
|
|
if (strcmp(filesystemtype, fsmap->fs_filesystemtype) == 0)
|
|
|
|
{
|
2019-10-27 18:48:14 +01:00
|
|
|
return fsmap->fs_mops;
|
2007-05-12 22:07:51 +02:00
|
|
|
}
|
|
|
|
}
|
2012-07-14 23:05:40 +02:00
|
|
|
|
2007-05-12 22:07:51 +02:00
|
|
|
return NULL;
|
|
|
|
}
|
2011-04-30 01:50:38 +02:00
|
|
|
#endif
|
2007-05-12 22:07:51 +02:00
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Public Functions
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Name: mount
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* mount() attaches the filesystem specified by the 'source' block device
|
|
|
|
* name into the root file system at the path specified by 'target.'
|
|
|
|
*
|
2018-02-01 17:00:02 +01:00
|
|
|
* Returned Value:
|
2007-05-12 22:07:51 +02:00
|
|
|
* Zero is returned on success; -1 is returned on an error and errno is
|
|
|
|
* set appropriately:
|
|
|
|
*
|
|
|
|
* EACCES A component of a path was not searchable or mounting a read-only
|
|
|
|
* filesystem was attempted without giving the MS_RDONLY flag.
|
|
|
|
* EBUSY 'source' is already mounted.
|
|
|
|
* EFAULT One of the pointer arguments points outside the user address
|
|
|
|
* space.
|
|
|
|
* EINVAL 'source' had an invalid superblock.
|
|
|
|
* ENODEV 'filesystemtype' not configured
|
|
|
|
* ENOENT A pathname was empty or had a nonexistent component.
|
|
|
|
* ENOMEM Could not allocate a memory to copy filenames or data into.
|
|
|
|
* ENOTBLK 'source' is not a block device
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
2012-02-15 18:51:30 +01:00
|
|
|
int mount(FAR const char *source, FAR const char *target,
|
|
|
|
FAR const char *filesystemtype, unsigned long mountflags,
|
|
|
|
FAR const void *data)
|
2007-05-12 22:07:51 +02:00
|
|
|
{
|
2018-09-22 22:20:18 +02:00
|
|
|
#if defined(BDFS_SUPPORT) || defined(MDFS_SUPPORT) || defined(NODFS_SUPPORT)
|
|
|
|
#if defined(BDFS_SUPPORT) || defined(MDFS_SUPPORT)
|
|
|
|
FAR struct inode *drvr_inode = NULL;
|
2011-04-30 01:50:38 +02:00
|
|
|
#endif
|
2007-05-12 22:07:51 +02:00
|
|
|
FAR struct inode *mountpt_inode;
|
|
|
|
FAR const struct mountpt_operations *mops;
|
2017-02-05 16:51:42 +01:00
|
|
|
#ifndef CONFIG_DISABLE_PSEUDOFS_OPERATIONS
|
|
|
|
struct inode_search_s desc;
|
|
|
|
#endif
|
2007-05-12 22:07:51 +02:00
|
|
|
void *fshandle;
|
|
|
|
int errcode;
|
2012-02-15 18:51:30 +01:00
|
|
|
int ret;
|
2007-05-12 22:07:51 +02:00
|
|
|
|
|
|
|
/* Verify required pointer arguments */
|
|
|
|
|
2011-04-30 01:50:38 +02:00
|
|
|
DEBUGASSERT(target && filesystemtype);
|
2007-05-12 22:07:51 +02:00
|
|
|
|
2011-04-30 01:50:38 +02:00
|
|
|
/* Find the specified filesystem. Try the block driver file systems first */
|
2008-08-02 16:25:34 +02:00
|
|
|
|
2011-04-30 01:50:38 +02:00
|
|
|
#ifdef BDFS_SUPPORT
|
2018-11-08 16:51:06 +01:00
|
|
|
if (source != NULL &&
|
|
|
|
(ret = find_blockdriver(source, mountflags, &drvr_inode)) >= 0)
|
2007-05-12 22:07:51 +02:00
|
|
|
{
|
2018-11-08 16:51:06 +01:00
|
|
|
/* Find the block based file system */
|
2011-04-30 01:50:38 +02:00
|
|
|
|
2018-11-08 16:51:06 +01:00
|
|
|
mops = mount_findfs(g_bdfsmap, filesystemtype);
|
|
|
|
if (mops == NULL)
|
2011-04-30 01:50:38 +02:00
|
|
|
{
|
2018-11-08 16:51:06 +01:00
|
|
|
ferr("ERROR: Failed to find block based file system %s\n",
|
|
|
|
filesystemtype);
|
|
|
|
|
|
|
|
errcode = ENODEV;
|
|
|
|
goto errout_with_inode;
|
2011-04-30 01:50:38 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
#endif /* BDFS_SUPPORT */
|
2018-09-22 22:20:18 +02:00
|
|
|
#ifdef MDFS_SUPPORT
|
2018-11-08 16:51:06 +01:00
|
|
|
if (source != NULL && (ret = find_mtddriver(source, &drvr_inode)) >= 0)
|
2018-09-22 22:20:18 +02:00
|
|
|
{
|
2018-11-08 16:51:06 +01:00
|
|
|
/* Find the MTD based file system */
|
2018-09-22 22:20:18 +02:00
|
|
|
|
2018-11-08 16:51:06 +01:00
|
|
|
mops = mount_findfs(g_mdfsmap, filesystemtype);
|
|
|
|
if (mops == NULL)
|
2018-09-22 22:20:18 +02:00
|
|
|
{
|
2018-11-08 16:51:06 +01:00
|
|
|
ferr("ERROR: Failed to find MTD based file system %s\n",
|
|
|
|
filesystemtype);
|
|
|
|
|
|
|
|
errcode = ENODEV;
|
|
|
|
goto errout_with_inode;
|
2018-09-22 22:20:18 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
#endif /* MDFS_SUPPORT */
|
|
|
|
#ifdef NODFS_SUPPORT
|
2011-04-30 01:50:38 +02:00
|
|
|
if ((mops = mount_findfs(g_nonbdfsmap, filesystemtype)) != NULL)
|
2007-05-12 22:07:51 +02:00
|
|
|
{
|
2011-04-30 01:50:38 +02:00
|
|
|
}
|
|
|
|
else
|
2018-09-22 22:20:18 +02:00
|
|
|
#endif /* NODFS_SUPPORT */
|
2011-04-30 01:50:38 +02:00
|
|
|
{
|
2018-11-08 16:51:06 +01:00
|
|
|
ferr("ERROR: Failed to find block driver %s\n", source);
|
|
|
|
|
|
|
|
errcode = ENOTBLK;
|
2011-04-30 01:50:38 +02:00
|
|
|
goto errout;
|
2007-05-12 22:07:51 +02:00
|
|
|
}
|
|
|
|
|
2015-06-11 18:10:25 +02:00
|
|
|
inode_semtake();
|
|
|
|
|
|
|
|
#ifndef CONFIG_DISABLE_PSEUDOFS_OPERATIONS
|
|
|
|
/* Check if the inode already exists */
|
|
|
|
|
2017-02-05 21:25:45 +01:00
|
|
|
SETUP_SEARCH(&desc, target, false);
|
2017-02-05 16:51:42 +01:00
|
|
|
|
|
|
|
ret = inode_find(&desc);
|
|
|
|
if (ret >= 0)
|
2015-06-11 18:10:25 +02:00
|
|
|
{
|
2016-09-22 16:22:28 +02:00
|
|
|
/* Successfully found. The reference count on the inode has been
|
|
|
|
* incremented.
|
2017-02-05 16:51:42 +01:00
|
|
|
*/
|
|
|
|
|
|
|
|
mountpt_inode = desc.node;
|
|
|
|
DEBUGASSERT(mountpt_inode != NULL);
|
|
|
|
|
|
|
|
/* But is it a directory node (i.e., not a driver or other special
|
2016-09-22 19:09:06 +02:00
|
|
|
* node)?
|
2015-06-11 18:10:25 +02:00
|
|
|
*/
|
|
|
|
|
|
|
|
if (INODE_IS_SPECIAL(mountpt_inode))
|
|
|
|
{
|
2016-09-22 16:22:28 +02:00
|
|
|
ferr("ERROR: target %s exists and is a special node\n", target);
|
2015-06-11 18:10:25 +02:00
|
|
|
errcode = -ENOTDIR;
|
2016-09-22 16:50:47 +02:00
|
|
|
inode_release(mountpt_inode);
|
|
|
|
goto errout_with_semaphore;
|
2015-06-11 18:10:25 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
#endif
|
|
|
|
|
2012-02-15 18:51:30 +01:00
|
|
|
/* Insert a dummy node -- we need to hold the inode semaphore
|
2007-05-12 22:07:51 +02:00
|
|
|
* to do this because we will have a momentarily bad structure.
|
2015-09-23 18:34:08 +02:00
|
|
|
* NOTE that the new inode will be created with an initial reference
|
|
|
|
* count of zero.
|
2007-05-12 22:07:51 +02:00
|
|
|
*/
|
|
|
|
|
|
|
|
{
|
2015-06-11 18:10:25 +02:00
|
|
|
ret = inode_reserve(target, &mountpt_inode);
|
|
|
|
if (ret < 0)
|
|
|
|
{
|
2019-03-19 15:39:05 +01:00
|
|
|
/* inode_reserve can fail for a couple of reasons, but the most
|
|
|
|
* likely one is that the inode already exists. inode_reserve may
|
|
|
|
* return:
|
2015-06-11 18:10:25 +02:00
|
|
|
*
|
|
|
|
* -EINVAL - 'path' is invalid for this operation
|
|
|
|
* -EEXIST - An inode already exists at 'path'
|
2019-03-19 15:39:05 +01:00
|
|
|
* -ENOMEM - Failed to allocate in-memory resources for the
|
|
|
|
* operation
|
2015-06-11 18:10:25 +02:00
|
|
|
*/
|
|
|
|
|
2016-06-11 23:50:49 +02:00
|
|
|
ferr("ERROR: Failed to reserve inode for target %s\n", target);
|
2015-06-11 18:10:25 +02:00
|
|
|
errcode = -ret;
|
|
|
|
goto errout_with_semaphore;
|
|
|
|
}
|
2007-05-12 22:07:51 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Bind the block driver to an instance of the file system. The file
|
|
|
|
* system returns a reference to some opaque, fs-dependent structure
|
|
|
|
* that encapsulates this binding.
|
|
|
|
*/
|
|
|
|
|
2018-09-22 22:20:18 +02:00
|
|
|
if (mops->bind == NULL)
|
2007-05-12 22:07:51 +02:00
|
|
|
{
|
|
|
|
/* The filesystem does not support the bind operation ??? */
|
|
|
|
|
2016-06-11 23:50:49 +02:00
|
|
|
ferr("ERROR: Filesystem does not support bind\n");
|
2007-05-12 22:07:51 +02:00
|
|
|
errcode = EINVAL;
|
|
|
|
goto errout_with_mountpt;
|
|
|
|
}
|
|
|
|
|
2007-05-27 20:08:18 +02:00
|
|
|
/* Increment reference count for the reference we pass to the file system */
|
|
|
|
|
2018-09-22 22:20:18 +02:00
|
|
|
#if defined(BDFS_SUPPORT) || defined(MDFS_SUPPORT)
|
|
|
|
#ifdef NODFS_SUPPORT
|
|
|
|
if (drvr_inode != NULL)
|
2011-04-30 01:50:38 +02:00
|
|
|
#endif
|
|
|
|
{
|
2018-09-22 22:20:18 +02:00
|
|
|
drvr_inode->i_crefs++;
|
2011-04-30 01:50:38 +02:00
|
|
|
}
|
|
|
|
#endif
|
2007-05-27 20:08:18 +02:00
|
|
|
|
2007-05-12 22:07:51 +02:00
|
|
|
/* On failure, the bind method returns -errorcode */
|
|
|
|
|
2018-09-22 22:20:18 +02:00
|
|
|
#if defined(BDFS_SUPPORT) || defined(MDFS_SUPPORT)
|
|
|
|
ret = mops->bind(drvr_inode, data, &fshandle);
|
2011-04-30 01:50:38 +02:00
|
|
|
#else
|
2012-02-15 18:51:30 +01:00
|
|
|
ret = mops->bind(NULL, data, &fshandle);
|
2011-04-30 01:50:38 +02:00
|
|
|
#endif
|
2018-09-22 22:20:18 +02:00
|
|
|
if (ret < 0)
|
2012-07-14 23:05:40 +02:00
|
|
|
{
|
2018-09-22 22:20:18 +02:00
|
|
|
/* The inode is unhappy with the driver for some reason. Back out
|
2009-11-18 18:31:04 +01:00
|
|
|
* the count for the reference we failed to pass and exit with an
|
|
|
|
* error.
|
|
|
|
*/
|
2007-05-12 22:07:51 +02:00
|
|
|
|
2016-06-11 23:50:49 +02:00
|
|
|
ferr("ERROR: Bind method failed: %d\n", ret);
|
2018-09-22 22:20:18 +02:00
|
|
|
|
|
|
|
#if defined(BDFS_SUPPORT) || defined(MDFS_SUPPORT)
|
|
|
|
#ifdef NODFS_SUPPORT
|
|
|
|
if (drvr_inode != NULL)
|
2011-04-30 01:50:38 +02:00
|
|
|
#endif
|
|
|
|
{
|
2018-09-22 22:20:18 +02:00
|
|
|
drvr_inode->i_crefs--;
|
2011-04-30 01:50:38 +02:00
|
|
|
}
|
|
|
|
#endif
|
2018-09-22 22:20:18 +02:00
|
|
|
|
2012-02-15 18:51:30 +01:00
|
|
|
errcode = -ret;
|
2009-05-29 15:32:00 +02:00
|
|
|
goto errout_with_mountpt;
|
2012-07-14 23:05:40 +02:00
|
|
|
}
|
2007-05-12 22:07:51 +02:00
|
|
|
|
|
|
|
/* We have it, now populate it with driver specific information. */
|
|
|
|
|
|
|
|
INODE_SET_MOUNTPT(mountpt_inode);
|
|
|
|
|
|
|
|
mountpt_inode->u.i_mops = mops;
|
|
|
|
#ifdef CONFIG_FILE_MODE
|
|
|
|
mountpt_inode->i_mode = mode;
|
|
|
|
#endif
|
|
|
|
mountpt_inode->i_private = fshandle;
|
|
|
|
inode_semgive();
|
|
|
|
|
2015-10-04 23:04:00 +02:00
|
|
|
/* We can release our reference to the blkdrver_inode, if the filesystem
|
|
|
|
* wants to retain the blockdriver inode (which it should), then it must
|
|
|
|
* have called inode_addref(). There is one reference on mountpt_inode
|
|
|
|
* that will persist until umount2() is called.
|
|
|
|
*/
|
2007-05-12 22:07:51 +02:00
|
|
|
|
2018-09-22 22:20:18 +02:00
|
|
|
#if defined(BDFS_SUPPORT) || defined(MDFS_SUPPORT)
|
|
|
|
#ifdef NODFS_SUPPORT
|
|
|
|
if (drvr_inode != NULL)
|
2011-04-30 01:50:38 +02:00
|
|
|
#endif
|
|
|
|
{
|
2018-09-22 22:20:18 +02:00
|
|
|
inode_release(drvr_inode);
|
2011-04-30 01:50:38 +02:00
|
|
|
}
|
|
|
|
#endif
|
2012-07-14 23:05:40 +02:00
|
|
|
|
2017-02-05 21:25:45 +01:00
|
|
|
#ifndef CONFIG_DISABLE_PSEUDOFS_OPERATIONS
|
|
|
|
RELEASE_SEARCH(&desc);
|
|
|
|
#endif
|
2007-05-12 22:07:51 +02:00
|
|
|
return OK;
|
|
|
|
|
|
|
|
/* A lot of goto's! But they make the error handling much simpler */
|
|
|
|
|
2008-08-02 16:25:34 +02:00
|
|
|
errout_with_mountpt:
|
2009-11-18 18:31:04 +01:00
|
|
|
inode_remove(target);
|
2007-05-12 22:07:51 +02:00
|
|
|
inode_release(mountpt_inode);
|
2009-05-29 15:32:00 +02:00
|
|
|
|
2008-08-02 16:25:34 +02:00
|
|
|
errout_with_semaphore:
|
2007-05-12 22:07:51 +02:00
|
|
|
inode_semgive();
|
2018-11-08 16:51:06 +01:00
|
|
|
#ifndef CONFIG_DISABLE_PSEUDOFS_OPERATIONS
|
|
|
|
RELEASE_SEARCH(&desc);
|
|
|
|
#endif
|
2017-02-05 21:25:45 +01:00
|
|
|
|
2018-09-22 22:20:18 +02:00
|
|
|
#if defined(BDFS_SUPPORT) || defined(MDFS_SUPPORT)
|
2018-11-09 20:23:12 +01:00
|
|
|
errout_with_inode:
|
|
|
|
|
2018-09-22 22:20:18 +02:00
|
|
|
#ifdef NODFS_SUPPORT
|
|
|
|
if (drvr_inode != NULL)
|
2011-04-30 01:50:38 +02:00
|
|
|
#endif
|
|
|
|
{
|
2018-09-22 22:20:18 +02:00
|
|
|
inode_release(drvr_inode);
|
2011-04-30 01:50:38 +02:00
|
|
|
}
|
|
|
|
#endif
|
2009-05-29 15:32:00 +02:00
|
|
|
|
2008-08-02 16:25:34 +02:00
|
|
|
errout:
|
2012-07-14 23:05:40 +02:00
|
|
|
set_errno(errcode);
|
2007-05-12 22:07:51 +02:00
|
|
|
return ERROR;
|
2011-04-30 01:50:38 +02:00
|
|
|
|
|
|
|
#else
|
2016-06-11 23:50:49 +02:00
|
|
|
ferr("ERROR: No filesystems enabled\n");
|
2012-07-14 23:05:40 +02:00
|
|
|
set_errno(ENOSYS);
|
2013-07-03 14:19:13 +02:00
|
|
|
return ERROR;
|
2018-09-22 22:20:18 +02:00
|
|
|
#endif /* BDFS_SUPPORT || MDFS_SUPPORT || NODFS_SUPPORT */
|
2007-05-12 22:07:51 +02:00
|
|
|
}
|
|
|
|
|
2011-04-30 01:50:38 +02:00
|
|
|
#endif /* CONFIG_FS_READABLE */
|
2007-06-09 21:11:00 +02:00
|
|
|
|