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* Merge branch 'for-next/include-cleanup'Sascha Hauer2016-05-091-3/+6
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| * move make_directory declaration to libfile.hSascha Hauer2016-04-151-0/+1
| | | | | | | | | | | | | | As a utility function for file handling make_directory() is well suited for libfile. Move it there. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * string: Fix (v)asprintf prototypesSascha Hauer2016-04-151-3/+4
| | | | | | | | | | | | | | | | | | | | 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>
| * include: move run_command prototype to command.hSascha Hauer2016-04-151-0/+1
| | | | | | | | | | | | run_command fits much better into command.h, move it there. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | fix erasing/protecting flashes with unspecified sizeSascha Hauer2016-04-191-1/+3
|/ | | | | | | | | | | | | | | | | fixes: 81737c1 mtd: Fix erasing of devices >4GiB Several places erased a complete flash partition passing ~0 as count to erase(). With the above commit count to erase was changed from an unsigned type to a signed type, so the (count > f->size - offset) check in erase() no longer triggers and the ~0 count is no longer adjusted to the whole device size. Among other things this results in saveenv failures on NOR flashes. This patch fixes this by introducing an explicit macro for erasing the whole device which is tested for in erase(). All other negative values are rejected. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reported-by: Giorgio <giorgio.nicole@arcor.de>
* fs: umount based on device path and mount pathMarkus Pargmann2016-04-081-3/+45
| | | | | | | umount on Linux can be used on a mount pathes and device pathes. This patch adds this functionality to barebox. Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
* mtd: Fix erasing of devices >4GiBSascha Hauer2016-02-091-1/+1
| | | | | | | | | When a device >4GiB is erased, not only the offset can be bigger than 4GiB, but also the size. This happens with the simplest command to erase a device: erase /dev/nand0. Make the size argument a 64bit type to make this work. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: automount: Make automountpoints persistentSascha Hauer2016-01-081-3/+4
| | | | | | | Do not remove the automountpoints when they are mounted. This way they can be reused when they have been unmounted. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: pass path directly to cdev_openSascha Hauer2015-10-151-6/+1
| | | | | | | Now that cdev_open handles a path we no longer have to add /dev/ to the name. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* filetype: Use cdev_openSascha Hauer2015-10-151-2/+0
| | | | | | | a cdev has to be opened before usage. Use cdev_open instead of cdev_by_name. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: Fix filesystem detection with full pathPeter Mamonov2015-10-131-1/+5
| | | | | | | | | | | | | When mount is given a full path (including /dev/) to the cdev file we can no longer automatically detect the filesystem. This is broken since: e89f1a1 detect_fs: use device instead of file Fix it by dropping the /dev/ component of the path. Signed-off-by: Peter Mamonov <pmamonov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* detect_fs: use device instead of fileVicente Bergas2015-10-021-1/+1
| | | | | | | | detect_fs would usually mount a device on a directory, so, use a device-specific type detection. Signed-off-by: Vicente Bergas <vicencb@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: Add device parameter for Linux root= optionSascha Hauer2015-06-181-0/+37
| | | | | | | | | | When registering a filesystem device add a device parameter suitable for the Linux root= option to boot from exactly this filesystem. Currently the fs layer sets this parameter to the root=PARTUUID= mechanism if a partuuid is available. Other filesystems like NFS and UBIFS which do not have a PARTUUID can overwrite this. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/misc'Sascha Hauer2015-06-091-8/+5
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| * mem: Fix memcpy_sz variable typesSascha Hauer2015-05-151-8/+5
| | | | | | | | | | | | | | | | - Drop usage of 'ulong', use unsigned long - remove unnecessary intermediate casting to unsigned long - Use proper u8/u16/u32 types. Fixes 64bit systems on which ulong is 64bit Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | fs: Add O_RWSIZE_8Sascha Hauer2015-05-281-0/+3
|/ | | | | | To support native 64bit accesses in memcpy_sz. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: make "offset" parameter of erase() and protect() 64 bit safeMarc Kleine-Budde2015-03-031-2/+2
| | | | | Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: implement fstatSascha Hauer2014-10-081-0/+16
| | | | | | | fstat is useful to get information about an already opened file. Add it to barebox. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: Store the path in struct filepSascha Hauer2014-10-081-0/+5
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: do not lookup global FILE * when the file is already availableSascha Hauer2014-10-081-1/+1
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: store pointer to fsdev instead of dev in struct filepSascha Hauer2014-10-081-48/+27
| | | | | | | | The struct device_d * in struct filep is never of interest, instead it is always converted to a struct fs_device_d *, so simplify the code by storing the struct fs_device_d * directly. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* move file helper functions to separate fileSascha Hauer2014-08-071-72/+0
| | | | | | | | | | We have our file helper functions in several places. Move them all to lib/libfile.c. With this we no longer have file helpers in fs/fs.c which contains the core fs functions and no functions in lib/libbb.c which are not from busybox. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* automount: check for recursive automountSascha Hauer2014-07-031-1/+9
| | | | | | | | | | | | | automount_mount calls run_command which may trigger an automount again. This results in an endless loop. A simple way to trigger this is: mkdir /x; automount /x false; cd /x; something Use a static variable to detect if we are currently in automount_mount() and bail out if we are. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/nfs'Sascha Hauer2014-03-071-7/+14
|\ | | | | | | | | Conflicts: defaultenv/defaultenv-2-base/bin/ifup
| * run_command: remove unused flag parameterSascha Hauer2014-03-071-1/+1
| | | | | | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * mount: support filesystem options passed via -oUwe Kleine-König2014-02-101-6/+13
| | | | | | | | | | | | | | | | | | | | | | Similar to mount(8) the barebox command mount now supports passing a string to the file system driver via -o. This is used in the next commit to let the user specify port numbers for nfs mounts. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | read_file: Use read_fullSascha Hauer2014-02-131-1/+2
|/ | | | | | | | At least NFS does not fulfill read requests > 1024 bytes at once. Use read_full in read_file as read doesn't guarantee that the whole request can be read at once. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Fix endless loop in automount codeSascha Hauer2013-11-271-0/+2
| | | | | | | | | | A chdir to a path registered as an automount path followed by a 'ls' results in an endless loop. This happens because the command the automounter executes results in another automount request. Fix this by running the automounter from the chdir code before the cwd is actually changed. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: Add function to get cdev by mountpathSascha Hauer2013-11-051-0/+13
| | | | | | This is useful to know for the bootloader spec implementation. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: ignore O_TRUNC open flag for devicesSascha Hauer2013-10-161-2/+1
| | | | | | | | | | | | | | | | | | The O_TRUNC flag has to be ignored when opening devices. Otherwise cp /somefile /dev/somedev fails. This is broken since: | commit d4f5bb1e011ac653a167031554f0ac9e028e9e36 | Author: Sascha Hauer <s.hauer@pengutronix.de> | Date: Sat Sep 28 13:12:50 2013 +0200 | | copy_file: Add missing O_TRUNC | | Without it, when copying a smaller file over a larger file the | resulting file still has the remaining space from the larger file. | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: add cdev mount helpersSascha Hauer2013-09-301-0/+80
| | | | | | | Introduce helpers to iterate over cdevs and mount them to a known path. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: use bus_for_each_driverSascha Hauer2013-09-291-4/+1
| | | | | | Instead of using for_each_driver and testing for the bus type. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: cleanup backingstore handlingSascha Hauer2013-09-291-8/+20
| | | | | | | | | | | 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>
* read_file: Make it work on tftp servers which do not pass sizeSascha Hauer2013-06-201-0/+18
| | | | | | | | Some tftp servers (for example netkit-tftp) do not pass the filesize. Add a workaround for read_file which reads the file into a temporary file which then is copied to a buffer. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: allocate FILE table dynamicallySascha Hauer2013-03-141-4/+7
| | | | | | | | | Some systems are runnignfrom a very limited SRAM, but have a huge malloc space in SDRAM. The bss normally is in SRAM, so we should avoid having big structures there. The FILE table is 5120 bytes big, so allocate it dynamically instead. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: add pread and pwrite functionsAlexander Aring2013-02-201-14/+74
| | | | | | | | | | | | | | | Add pread and pwrite functions. Split read and write functions to save some space. The functions pread and pwrite saves and sets the file position to a given offset and restore them afterwards. This also makes the nandtest command use these function which is necessary to not break compilation for the nandtest command. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: fix return type of readAlexander Aring2013-02-181-1/+1
| | | | | Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Add write_file functionSascha Hauer2013-01-191-0/+19
| | | | | | | write_file() will write a buffer to a file. The file is created if necessary. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* drivers/base: fix corrupt device treeSascha Hauer2012-12-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dev_add_child is a very unsafe function. If called multiple times it allows setting the same device to different parents thus corrupting the siblings list. This happens regularly since: | commit c2e568d19c5c34a05a1002d25280bf113b72b752 | Author: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | Date: Sat Nov 3 16:11:05 2012 +0100 | | bus: add bus device | | automatically add it as parent of any bus device if none already specified | | we have now a nice output per bus If for example a FATfs is mounted this nice output per bus often ends with: > `---- fat0 > `---- 0 > `---- 0x86f0000087020031-0x86f000410df27124: /dev/<NULL> > `---- sram00 > `---- 0x00000000-0xffffffffffffffff: /dev/<NULL> > `---- 0x00000000-0xffffffffffffffff: /dev/<NULL> > unable to handle NULL pointer dereference at address 0x0000000c > pc : [<87f08a20>] lr : [<87f08a04>] > sp : 86eff8c0 ip : 87f3fbde fp : ffffffff > r10: ffffffff r9 : 00000000 r8 : 00000003 > r7 : 86f075b8 r6 : 00000002 r5 : ffffffec r4 : 86f07544 > r3 : 00000000 r2 : 43f900b4 r1 : 00000020 r0 : 00000005 > Flags: Nzcv IRQs off FIQs off Mode SVC_32 > [<87f08a20>] (do_devinfo_subtree+0x90/0x130) from [<87f08a90>] (do_devinfo_subtree+0x100/0x130) > > [<87f3e070>] (unwind_backtrace+0x0/0x90) from [<87f28514>] (panic+0x28/0x3c) > [<87f28514>] (panic+0x28/0x3c) from [<87f3e4b8>] (do_exception+0x10/0x14) > [<87f3e4b8>] (do_exception+0x10/0x14) from [<87f3e544>] (do_data_abort+0x2c/0x38) > [<87f3e544>] (do_data_abort+0x2c/0x38) from [<87f3e268>] (data_abort+0x48/0x60) This patch fixes this by adding a device to its parents children list in register_device so that dev_add_child is no longer needed. This function is removed from the tree. Now callers of register_device have to clearly set the parent *before* registering a device. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reported-by: Jan Lübbe <jlu@pengutronix.de>
* fs: move dev_add_child before device_registerSascha Hauer2012-12-121-5/+5
| | | | | | Biology tells us that the parent is known before the child is born. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: improve robustnessVicente2012-10-081-9/+18
| | | | | Signed-off-by: Vicente <vicencb@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/remove-fsf-address'Sascha Hauer2012-10-031-3/+0
|\ | | | | | | | | | | Conflicts: drivers/net/miidev.c include/miidev.h
| * Treewide: remove address of the Free Software FoundationSascha Hauer2012-09-171-3/+0
| | | | | | | | | | | | | | The FSF address has changed in the past. Instead of updating it each time the address changes, just drop it completely treewide. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/driver'Sascha Hauer2012-10-031-0/+6
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| * driver: register busJean-Christophe PLAGNIOL-VILLARD2012-09-231-0/+6
| | | | | | | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | fs: fs.c fix castAlexander Aring2012-09-111-2/+6
|/ | | | | | | Fix casting on min argument, to avoid warnings on 64bit build. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/link'Sascha Hauer2012-09-051-7/+222
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| * fs: introduce get_mounted_path to get the path where a file is mountedJean-Christophe PLAGNIOL-VILLARD2012-09-051-0/+9
| | | | | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
| * fs: open: add symlink supportJean-Christophe PLAGNIOL-VILLARD2012-09-051-4/+11
| | | | | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
| * fs: implement statJean-Christophe PLAGNIOL-VILLARD2012-09-051-0/+105
| | | | | | | | | | | | stat() stats the file pointed to by path and fills in buf. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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