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2019-09-28Do the SELinux relabeling while generating the fstreeDavid Oberhollenzer
This commit splits the SELinux relabeling function up into 3 parts: - open the label file - apply relabeling rules to a given file - close the label file The relabeling is done while building the tree (if reading from an input directory) or in a post process step if reading from a desription file. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Move fstree selinux code to gensquashfsDavid Oberhollenzer
Same rational as for the dir-scanner code: It's actually the only user and it is going to get a lot closer integerated with libsquashfs. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Move fstree_from_dir to gensquashfs codeDavid Oberhollenzer
It's actually the only user and the dir-scanner xattr code is going to get a lot closer integerated with libsquashfs. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Cleanup: merge data.h into block.hDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-26Remove remnants of the old data writerDavid Oberhollenzer
- Move the statstics hooks to the rest of the statistics code - Used the new data writer directly in gensquashfs & tar2sqfs - Demote what is left to a helper function for processing an input file and submitting it to the new data writer Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-10Make the thread pool queue backlog user configurableDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-08Replace direct file I/O with abstraction layerDavid Oberhollenzer
This should make it easier to use libsquashfs with custom setups that embedd a squashfs image inside something else. Also, it should make it easier to port to non unix-like platforms. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-01Break up squashfs.h into topic related headersDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-01Install libsquashfs.so headers on the system in "sqfs" subdirectoryDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-18Make data writer use block processorDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-11cleanup: replace gensquashfs bool options for dir scan with flagsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-11Add gensquashfs option to read xattrs from input filesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-11Add --one-file-system option to gensquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-30Add propper copyright headers to all source filesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-24Enable largefile supportMatt Turner
Requires that config.h be included before other headers, since the macro _FILE_OFFSET_BITS changes the definitions of things like 'struct stat'. I chose to simply include it at the top of every C file and at immediately after the double-inclusion guards of every header. Signed-off-by: Matt Turner <mattst88@gmail.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-22Add a way to optionally keep the original time stampsDavid Oberhollenzer
First of all, this commit adds a mod_time field to a tree node. When creating the tree node, the field is set from the struct stat. When scanning a directory, the time stamps from the input are used if set. Second, the libsqfs code that reads inodes is modified to store the mod_time from the inode in the fstree node and to write the tree node into a generated inode. Finally, tar2sqfs is modified to optionally keep the timestamps from the tar archive instead of setting defaults. gensquashfs is similarly modified to keep the input timestamps if specified. The result is as follows: - sqfs2tar will always carry the timestamps from the squashfs over to the tar ball. - tar2sqfs will set defaults, unless explicitly asked to preserve the mtime from the tar ball. - gensquashfs can optionally preserve the mtime from the input hierarchy it processes if only --pack-dir is specified. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-21Implement generating an inode table for NFS exportDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-23Move fstree default option processing to fstree codeDavid Oberhollenzer
Instead of decomposing a default string in gensquashfs option processing, move that to fstree_init instead and pass the option string directly to fstree_init. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-23Move all handling of compressor names to libcompress.aDavid Oberhollenzer
This commit removes handling of compressor names from gensquashfs. Instead, functions are added to libcompress to obtain name from ID, ID from name and to print out defaults. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-11cleanup: mkfs: remove redundant header inclusionsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-11cleanup: merge rest of block.c into mkfs.cDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-11cleanup: remove rest of sqfs_info_tDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-11Move write_xattr to libsqfs.aDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-11Remove sqfs_info_t from xattr writerDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-11Move data writer to libsqfs.aDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-11Encapsulate data/fragment processing in data_writer_t data structureDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-11Major cleanup of mkfs block processorDavid Oberhollenzer
This commit tries to make the block and fragment processing code a lot more readable by simplifying it as follows. The following pattern is used repeatedly: - Try to compress a block - Write the compressed if smaller (the original otherwise) to a file - Print errors on the way - Set the magic (1 << 24) flag if we wrote the original - Increment the super block byte counter => Move that to a seperate function called "write_compressed" => Move the code to grow the fragment table is moved to a seperate function. => Clearing the fragment buffer is pointless, so remove that The add_fragment/add_block functions are now trivial => Merge them into process_file => Global block counter no longer needed, so remove that too Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-11cleanup: remove the linked list of fragment relationsDavid Oberhollenzer
Don't need that, we already know the index when we write add the fragment. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-11cleanup: remove unused prototypesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-10Rename table.h to highlevel.hDavid Oberhollenzer
The idea is to move various higher level helper functions there. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-10cleanup: move entire fstree serialization to libsqfs.aDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-10Make sqfs_write_inodes independend of sqfs_info_tDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-10cleanup: move write_inode to separate fileDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-10Generate a flat inode table from the fstree ahead of timeDavid Oberhollenzer
Instead of allocating inode numbers as we go, generate and populat an inode table from the fstree ahead of time. This makes processing nodes a little bit simpler and we will need that table anyway for NFS export support later on. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-06-10cleanup: move directory serialization to separate fileDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-05-31gensquashfs: allow combining packdir and packfileDavid Oberhollenzer
If packdir and packfile are both specified, use packdir as alternate root. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-05-26gensquashfs: add option to simply pack an input directoryDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-05-21Add command line flag for compressor options, pass them to compressorsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-05-19Generate extended attribute tableDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-05-19Add SELinux option to gensquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-05-05Print out what we are doing on the way and options to keep quietDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-05-04Rename tools to not collide with squashfs-toolsDavid Oberhollenzer
This commit changes the names of the tools to gensquashfs and rdsquashfs so they don't collide with the names used by the squashfs-tools package and the two can be installed side by side. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>