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* Rename struct fs_driver_d to fs_driverSascha Hauer2023-01-101-1/+1
| | | | | | | | | Remove the meaningless '_d' suffix. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.barebox.org/20221214123512.189688-6-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Rename struct fs_device_d to fs_deviceSascha Hauer2023-01-101-2/+3
| | | | | | | | | Remove the meaningless '_d' suffix. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.barebox.org/20221214123512.189688-5-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Rename struct device_d to deviceSascha Hauer2023-01-101-5/+5
| | | | | | | | | | | | | The '_d' suffix was originally introduced in case we want to import Linux struct device as a separate struct into barebox. Over time it became clear that this won't happen, instead barebox struct device_d is basically the same as Linux struct device. Rename the struct name accordingly to make porting Linux code easier. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.barebox.org/20221214123512.189688-3-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Revert "lib: zstd: sync with Linux"Sascha Hauer2022-09-301-2/+2
| | | | | | | | | | | | | | | | | This was part of a larger series that made it possible to use other compression algos than LZO for device tree and to use zstd more widely for barebox and kernel compression. The latter zstd-related parts needed rework and were not merged, but the zstd update was applied. It broken in turn the UBIFS zstd support. As we get nothing out of the update without the not applied commits that need rework anyway, revert this commit. This reverts commit b4a9782d4f56333e897dccc35c2c27e2605f6b93. Reported-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220929102537.1767458-1-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ubifs: Fix pointer type mismatch in gzip decompressorSascha Hauer2022-09-131-1/+8
| | | | | | | | deflate_decompress() takes a unsigned int * for the out_len argument whereas ubifs passes a size_t * argument. Adjust the argument type accordingly. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lib: zstd: sync with LinuxAhmad Fatoum2022-08-081-2/+2
| | | | | | | | | Import the Linux v5.18.3 state of the zstd decompression code. The compressor was omitted and error strings were disabled for PBL. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220713100922.1880282-3-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ubifs: fix crash building without decompressorsAhmad Fatoum2022-07-141-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | When building barebox with ubifs support, but without decompressors enabled, we run into a NULL pointer dereference: BUG: failure at lib/string.c:249/strncmp()! BUG! [<4fd8ea59>] (unwind_backtrace+0x1/0x78) from [<4fd014e5>] (panic+0x1d/0x34) [<4fd014e5>] (panic+0x1d/0x34) from [<4fd65ed1>] (strncmp+0x2d/0x50) [<4fd65ed1>] (strncmp+0x2d/0x50) from [<4fd784bb>] (compr_init+0x4b/0x70) [<4fd784bb>] (compr_init+0x4b/0x70) from [<4fd78915>] (ubifs_compressors_init+0x15/0x40) [<4fd78915>] (ubifs_compressors_init+0x15/0x40) from [<4fd78e89>] (ubifs_init+0x2d/0x48) [<4fd78e89>] (ubifs_init+0x2d/0x48) from [<4fd01159>] (start_barebox+0x35/0x6c) [<4fd01159>] (start_barebox+0x35/0x6c) from [<4fd8c9f3>] (barebox_non_pbl_start+0x127/0x170) [<4fd8c9f3>] (barebox_non_pbl_start+0x127/0x170) from [<4fd00005>] (__bare_init_start+0x1/0xc) This is because the loop in crypto_alloc_comp iterates over all possible decompressors and then accesses comp->capi_name, which will be NULL for unusable decompressors. Add a NULL check to handle this gracefully. A check for alg_name isn't needed because it's already checked in compr_init. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220713092047.1588210-1-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ubifs: Add zstd supportSascha Hauer2022-02-071-0/+52
| | | | | | | zstd shows a good compression rate and is faster than lzo. This adds UBIFS support for it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: ubifs: remove unused variableSascha Hauer2021-03-121-2/+0
| | | | | | 'current' is unused. Remove it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/percent_pe' into masterSascha Hauer2020-10-141-2/+1
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| * vsprintf: retire strerrorp in favor of %peAhmad Fatoum2020-09-291-2/+1
| | | | | | | | | | | | | | | | | | strerrorp() is only used along with printf. We now have a format specifier for printing error pointers directly, so use that and remove strerrorp. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | magicvar: Replace BAREBOX_MAGICVAR_NAMED with BAREBOX_MAGICVARSascha Hauer2020-10-021-5/+4
|/ | | | | | | | BAREBOX_MAGICVAR now generates a unique identifier automatically, so we can convert users of BAREBOX_MAGICVAR_NAMED to the simpler BAREBOX_MAGICVAR macro. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: ubifs: Add authentication supportSascha Hauer2019-04-241-0/+6
| | | | | | | | | | | | This adds UBIFS authentication support. For now, we do not do any authentication even on authenticated UBIFS images. Since this behaviour is not what the user normally expects when mounting authenticated images we only do this when the user explicitly allows it in "global.ubifs.allow_authenticated_unauthenticated". If the flag is false then we refuse mounting such an image and return -EPERM instead. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: Drop trivial .lseek() implementaitons in FS driversAndrey Smirnov2019-01-291-6/+0
| | | | | | | | | | | | | | | There are no FS drivers that do not implement .lseek callback in the codebase, so there doesn't seem to exist a use-case where lseek() would return -ENOSYS due to fsdrv->lseek being NULL. At the same time a large number of FS drivers implement only the most basic "always succeeds" custom .lseek() hook. Change the code of lseek() to treat absense of .lseek() to mean that no special actions needs to be taken by FS driver and seek is always successful and drop all of the trivial .lseek() implementations. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: Update FILE position in lseek()Andrey Smirnov2019-01-291-2/+0
| | | | | | | | | | Instead on relying on driver callbacks to update 'pos' in FILE, do it as a part of lseek() code. This allows us to drop a bit of repeating code as well as making lseek() implementation consistent with write() and read(). Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: ubifs: Avoid missing prototype warningSascha Hauer2018-11-121-1/+1
| | | | | | Remove unused ubifs_iput() and make locally used functions static. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: ubifs: optionally allow to mount UBIFS images with encrypted filesSascha Hauer2018-10-081-0/+9
| | | | | | | | | Currently we do not support the UBIFS file encryption feature. Nevertheless we can allow read clear files from UBIFS to be able to boot an unencrypted kernel. This differs from the Kernel behaviour, so add a globalvar to make that configurable. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ubifs: Update to v4.18-rc6Sascha Hauer2018-10-081-1/+3
| | | | | | | | | | | | This syncs the UBIFS code with Linux-4.19-rc6. There are many functions in the Linux UBIFS codebase that we do not need for a readonly implementation. These are missing here, but all removed functions are annotated as such so it should be relatively easy to copy a newer codebase over the current one and to see which functions shall be removed from the newer version. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: ubifs: remove not needed codeSascha Hauer2018-10-081-14/+0
| | | | | | | | | | | | | | | | | | This patch aggressively removes stuff that we do not need in a readonly implementation: - write buffering support - lpt/ltab code - garbage collector - everything under #ifndef __BAREBOX__ This decreases the binary size by about 5k on ARM, but the main reason for doing this is the idea that things that are not there don't need to be synced with upstream ubifs code. The __BAREBOX__ ifdeffery makes the code very hard to read and is a maintenance burden by itself, so it is removed here aswell. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Add kmemdupSascha Hauer2018-10-081-17/+0
| | | | | | | | We have kmemdup as a UBIFS specific variant, put it into the correct header files. Instead of reimplementing it just use memdup we already have. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: ubifs: Switch to dentry cache implementationSascha Hauer2018-07-131-336/+5
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ubifs: remove dead codeSascha Hauer2018-04-061-475/+0
| | | | | | | Remove code that was added to UBIFS for U-Boot but that is not needed for barebox. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ubifs: restore symlink supportRenaud Barbier2017-01-091-29/+0
| | | | | | | | | | | In commit a63059d7 of the latest u-boot port, the function that returns the inode number also resolves symlink. This prevents the readlink entry point from doing its job and breaks the user command readlink and the display of symlink with the ls command. Remove the code following the link to restore original functionality. Signed-off-by: Renaud Barbier <renaud.barbier@abaco.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ubifs: check return pointer properlyLucas Stach2016-07-071-4/+4
| | | | | | | | ubifs_iget() returns error codes encoded in the pointer, so the NULL check will never be true. Signed-off-by: Lucas Stach <dev@lynxeye.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* string: Fix (v)asprintf prototypesSascha Hauer2016-04-151-2/+2
| | | | | | | | | | Our asprintf and vasprintf have different prototypes than the glibc functions. This causes trouble when we want to share barebox code with userspace code. Change the prototypes for (v)asprintf to match the glibc prototypes. Since the current (v)asprintf are convenient to use change the existing functions to b(v)asprintf. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ubifs: update implementation from u-boot v2016.03Alexander Stein2016-04-081-78/+750
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This updated code supports recovering from unclean unmounts when write buffer size is larger than 8. Linux uses takes information into consideration when checking for writes. The following list shows the changes for each file done compared to u-boot v2016.03 code. Makefile * Add gc.o, do not include header as in u-boot budget.c: * Replace __UBOOT__ with __BAREBOX__ debug.c: * Replace __UBOOT__ with __BAREBOX__ * Remove #include <linux/compat.h> * Replace current->pid with 0 debug.h * Replace __UBOOT__ with __BAREBOX__ * Add "0 &&" to ubifs_assert condition check U-Boot essentially disabled pr_crit output and dump_stack() is defined to do { } while (0), so ubifs_assert does nothing despite condition. gc.c: * Replace __UBOOT__ with __BAREBOX__ io.c: * Replace __UBOOT__ with __BAREBOX__ * Remove #include <linux/compat.h> key.h: * No changes log.c: * No changes lprops.c: * Replace __UBOOT__ with __BAREBOX__ lpt.c * Replace __UBOOT__ with __BAREBOX__ * Remove #include <linux/compat.h> * Remove #include <ubi_uboot.h> lpt_commit.c * Replace __UBOOT__ with __BAREBOX__ * Remove #include <linux/compat.h> master.c * Replace __UBOOT__ with __BAREBOX__ * Remove #include <linux/compat.h> * Remove #include <ubi_uboot.h> misc.h * Replace __UBOOT__ with __BAREBOX__ * Add #ifndef __BAREBOX__ around unneeded ubifs_current_time orphan.c * No changes recovery.c * Replace __UBOOT__ with __BAREBOX__ replay.c * Replace __UBOOT__ with __BAREBOX__ * Remove #include <linux/compat.h> sb.c * Replace __UBOOT__ with __BAREBOX__ * Remove #include <linux/compat.h> * Remove #include <ubi_uboot.h> * rp_uid and rp_gid are still uid_t, not kuid_t, so remove .val scan.c * Replace __UBOOT__ with __BAREBOX__ super.c: * Replaced current->pid with 0 * Replaced __UBOOT__ with __BAREBOX__ * Removed #include <ubi_uboot.h> * Removed #include <memalign.h> * Added #include <init.h> * Replaced malloc_cache_aligned with kzalloc * Replaced I_LOCK with I_SYNC * i_uid and i_gid are still uid_t, not kuid_t, so remove .val * Replaced string "U-Boot" with "Barebox" * Add #ifndef __BAREBOX__ around open_ubi, sb_test, sb_set, ubifs_mount, kill_ubifs_super, ubifs_fs_type * Do not call ubi_open_volume or ubi_close_volume in ubifs_fill_super Those will already be handled in ubifs_probe * Replaced uboot_ubifs_mount with new ubifs_get_super implementation using existing functions alloc_super, alloc_ubifs_info tnc.c * Replace __UBOOT__ with __BAREBOX__ * Remove #include <linux/compat.h> tnc_misc.c * Replace __UBOOT__ with __BAREBOX__ ubifs-media.h * Replace __UBOOT__ with __BAREBOX__ ubifs.c: * Replaced __UBOOT__ with __BAREBOX__ * Adjusted header includes * Removed DECLARE_GLOBAL_DATA_PTR * Add static struct z_stream_s variable * Add struct ubifs_priv delcaration * Replaced zunzip with deflate_decompress call * Add ifdef for disabling ZLIB and/or LZO support * Replaced malloc_cache_aligned with kzalloc * Added #ifndef __BAREBOX__ around filldir, ubifs_printdir, ubifs_set_blk_dev, ubifs_ls, ubifs_exists, ubifs_size, do_readpage, ubifs_read, ubifs_close, ubifs_load * Make parameter filename const char* in ubifs_findfile * Add UBIFS fs_driver_d implementation * Add zlib_decomp_init, ubifs_init ubifs.h: * Replaced __UBOOT__ with __BAREBOX__ * Adjusted header includes * Added old #define crc32 * Added helper around kmem* * Added XATTR_LIST_MAX define * Added #ifndef __BAREBOX__ around current_fs_time struct inode, struct super_block, file_system_type, dentry and friends which barebox already has * Added #ifndef __BAREBOX__ around write_inode in super_operations to avoid declaration of writeback_control * Change rp_uid and rp_gid to uid_t and gui_t * Added struct device_d to struct ubifs_info * Added forward declaration of ubifs_get_super linux/fs.h: * Make struct inode's i_nlink a union containing a non-const int __i_nlink while making i_nlink a const int linux/fs.h: * Add s_remove_count linux/fs.h: * Convert struct super_block.s_instances and struct file_system_type.fs_supers to hlist_head Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ubifs: Fix reading holes in filesSascha Hauer2016-02-041-1/+1
| | | | | | | | When a whole block of 4KiB in an ubifs file is zero then the block is not stored in the filesystem. read_block() returns -ENOENT in this case, so this return value must be treated as success. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* introduce strerrorpSascha Hauer2015-09-231-1/+1
| | | | | | | | | | putting an error pointer into strerror can be a bit confusing since strerror takes a positive error code but PTR_ERR returns a negative number, so we have to do strerror(-PTR_ERR(errp)). Some places got this wrong already, so introduce a strerrorp function which directly takes an error pointer. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: ubifs: Implement Linux rootargSascha Hauer2015-06-181-0/+23
| | | | | | | | Add the parameter to boot from ubifs fileystems. This assumes that there will be only one UBI device registered in the kernel, otherwise there is no way to predict the ubi number. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: rename inode member of struct filep to privSascha Hauer2015-03-091-3/+3
| | | | | | | Because that's what it is. 'inode' will become confusing once we support real inodes. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* ubifs: Remove unused variableAlexander Shiyan2014-04-231-4/+0
| | | | | Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: ubifs: rework loggingSascha Hauer2014-02-281-1/+1
| | | | | | | | By default UBIFS is very verbose. Decrease the verbosity, turn printf messages into ubifs_ messages and add device parameters for the values which are not printed anymore. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: ubifs: Fix unused function warningSascha Hauer2014-02-281-0/+2
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* UBIFS: implement readlink entry pointRenaud Barbier2014-01-301-0/+38
| | | | | | | Implement the readlink entry point for future use by the DA923RC. Signed-off-by: Renaud Barbier <renaud.barbier@ge.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: cleanup backingstore handlingSascha Hauer2013-09-291-10/+6
| | | | | | | | | | | All filesystem drivers which need a backingstore device do the same ignoring of '/dev/' in the backingstore followed by a cdev_open. Add a helper function for it and let the core handle the cdev. As a side effect this makes sure that fsdev->cdev is also set when a device is mounted without the leading '/dev/' which was previously ignored by the mount code. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: Add ubifs supportSascha Hauer2013-08-071-0/+654
This adds ubifs support from u-boot-2013.07. This is taken mostly as-is, only the necessary adjustments to attach to the barebox fs layer have been made. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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