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2023-04-19libfstree: hoist file link pointer into parent structureDavid Oberhollenzer
Instead of having a file_info_t next pointer, requiring an up-cast to tree_node_t all the time, simply add a "next_by_type" pointer to the tree node itself, which can also be used for other purposes by other node types and removes the need for up-casting. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-19libfstree: Change file_info_t already_matched into flagDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-19libfstree: get rid of dir_info_tDavid Oberhollenzer
The single boolean created_implicitly can be replaced with a general purpose flag field. The "children" pointer can then be hoisted directly into the data union of tree_node_t. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-17fstree_from_dir: Move the recursion step into scan_dirDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-17Remove the remainder of the Win32 fstree_from_dir implementationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-17Implement a version of the directory iterator for UnixDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12Merge Windows and Unix implementations of fstree_from_subdirDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12Copy the dir scan pattern from the Windows implementationDavid Oberhollenzer
If we look at a sub directory, piece totether the full path and open that instead. This allows us to move the directory open into the scan function and get rid of the dirfd trickery. Also pull the recusion step out into the parent function. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12Cleanup: gensquashfs: split readlink handling out of directory scanDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12gensquashfs: merge some of the Windows and Unix entry filtering codeDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12Win32: gensquashfs: Merge fstree_from_dir and subdir implementationsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12Split out Windows directory iteration code to a dir_iterator_t typeDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-12Fix fstree defaults usage in Windows version of fstree_from_dirDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-06libfstree: Move left over dirscan flags to gensquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-04Move scan callback from libfstree to gensquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-02Move fstree CLI code to libcommonDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-04-01libsquashfs: remove the default block writer alignment featureDavid Oberhollenzer
The idea of the block align feature was to allow micro-managing that some files are forcefully aligned to 1k/4k ("device block") boundaries, hoping to improve access time at the cost of data density. The feature was not exposed in the tools for a long time and eventuall added to the sort file. Measurement and experimentation showed, that it in fact worsened the read performance on a test system with an old micro SD card as the bottle neck. The feature is removed, and if needed, can be brought back simply by wrapping/sub-classing the default block writer, if need be.. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-12libtar: Add a test for the tar writing codeDavid Oberhollenzer
Generate a simple tarball and compare it with a reference. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-02-08libtar: Add an istream_t implementationDavid Oberhollenzer
The tar_istream_t reads the data from a tar file, having been given the header, and synthesizes zero bytes for sparse regions. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-01-31Reintegrate test code with library codeDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-01-31Move library source into src sub-directoryDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2023-01-19Implement rudimentary reference counting for sqfs_object_tDavid Oberhollenzer
Implement grab/drop functions to increase/decrease reference count and destroy the object if the count drops to 0. Make sure that all objects that maintain internal references actually grab that reference, duplicate it in the copy function, drop it in the destroy handler. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-11-22Move gensquashfs specific code from libfstree to gensquashfsDavid Oberhollenzer
The "from dir" and from "from file" code, as well as the "sort file" code is specific to gensquashfs, so move them there and the test cases as well. The medium term idea is to reduce libfstree to a stub, merge it into the generic writer and ultimately hoist that into libsquashfs. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-11-21filemap xattr: slightly improve error reportingDavid Oberhollenzer
- When printing an error, specify the filename and line number - Always print an error, including out of memory conditions - Fail if we encounter a line that we don't recognize Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-11-21filemap xattr: use sqfs_u8 data type for xattr value blobsDavid Oberhollenzer
The xattr values are not strings, they are arbitrary byte blobs. To be on the safe side tough, we should still allocate the space for the extra null byte and propperly initialize the buffer. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-11-19gensquashfs: Add example for the xattr filemap to the help textDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-11-19gensquashfs: split the help text up into smaller partsDavid Oberhollenzer
It's just too darn big, crossing the maximum guaranteed by C99. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-11-19gensquashfs: simplfy the help text a bitDavid Oberhollenzer
The help text should provide a short, concise explanation, for quickly lookup up how to use the programs. For the input formats, this is mostly covered by the examples themselves. The detailed description can remain in the man page. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-11-19Add a man-page section about the xattr file formatDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-11-18filemap xattr: use file istream from libio instead of stdio FILEDavid Oberhollenzer
The line-by-line reading function in the io library was specifically added for this kind of use case, so we don't have to handle trimming of lines, don't have to touch getline() and it's convoluted error handling (return value -1 could mean either EOF or error). The code that searches for '\n' and replaces it with '\0' can be removed as well and a memory leak involving "line" is removed along the way. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-11-18filemap xattr: simplify error handling, freeingDavid Oberhollenzer
- Some of the error/cleanup paths are merged. - Struct fields don't have to be set to NULL if the entire struct is free'd immediately after. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-11-18Add a single, central base64 decoderDavid Oberhollenzer
Similar to the hex blob decoder, we need this once for tar and once for the filemap xattr parser. Simply add a single, central implementation to libutil, with a simple unit test, and then use it in both libtar and gensquashfs. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-11-18Add a single, central hex blob decoderDavid Oberhollenzer
Since we need it twice (once for tar, once for the filemap xattr parser), add a single, central implementation to libutil, add a unit test for that implementation and then use it in both libtar and gensquashfs. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-11-16filemap xattr: move data structures to mkfs.hDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-11-07implement parser for xattr files as produced by getfattr --dump XXXEnno Boland
2022-07-08Cleanup: move filename_sane & canonicalize_path functions to libutilDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-07-08Cleanup: rename libfstream to libio, split headersDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-03-30Update man pageDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2022-03-30Add a sort-file option to gensquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2021-03-06Cleanup: replace the void-ptr with an inode-ptr in the file tree nodeDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2021-02-19gensquashfs: Document the globbing featureDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2021-02-19fstree_from_file: Implement basic file globbingDavid Oberhollenzer
The base path is passed to the fstree_from_file function and in turn to the individual callbacks. The line parsing function is modified to allow '*' as mode, uid and gid for specifically marked callbacks. A glob callback is added that internally uses the fstree_from_dir scanning functions in combination with a filter callback. Directory scanning flags are parsed from the extra arguments before interpreting it as a path fragment. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2021-02-19libfstree: Add a filter callback to the directory scanning functionDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2021-02-18gensquashfs: always construct input path during option processingDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-12-15libfstree: make the directory scanning code a little more genericDavid Oberhollenzer
- Instead of using the fstree root, let the caller specify it. - Add a flag to prevent recursion into sub directories. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-12-10Move fstree dirscan code back to libfstreeDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-09-29Replace file/getline usage with istreamDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-06-11Add flags to functions that might logically be expanded in the futureDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-05-30Fix: Only add Selinux flags if WITH_SELINUX is setDavid Oberhollenzer
On a current Fedora 31, when cross compiling with mingw, pkg config manages to find the Selinux library, but not the header. The configure script disables WITH_SELINUX, but the library variable is still set, causing a linker error further down the line. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-05-30Cleanup: Reorganize structure of Automake filesDavid Oberhollenzer
- Split up the huge file in bin/ into one small file per sub directory - Remove the stub in doc/ Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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