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2019-09-29Cleanup: fstree_from_file does not need to change working directoryDavid Oberhollenzer
The file_info_t no longer stores the size or other such information, so there is no need to do a stat on the input file. This also means that gensquashfs no longer needs to change the working directory when using the function. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-29Remove fstree xattr test. fstree_t no longer stores xattrs.David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-29Bring back the don't fragment flagDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-29Make the data writer padding hookableDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-29Fix data writer: remember where we stored the paddingDavid Oberhollenzer
If we don't store the padding location in the deduplication list, the block deduplication might try to deduplicate across two files with padding in between, which can't be done. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Cleanup: remove left over declarationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Cleanup: remove string allocation helper functionDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Replace fstree/sqfshelper xattr code with sqfs_xattr_writer_tDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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>
2019-09-28Fix sqfs2tar inversion of xattr flagDavid Oberhollenzer
If the super block has the no-xattr-flag NOT SET, try to read the extended attributes. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Fix xattr writer: don't generate an xattr table if there is noneDavid Oberhollenzer
If there were no key-value pairs recoreded during the lifetime of the xattr writer, take a short cut out of the flush function and set the super block values to indicate that. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Fix xattr writer: handle the case that no attributes where addedDavid Oberhollenzer
If begin/end was called without recording *any* attributes, simply set the resulting index to the 0xFFFFFFFF sentinel. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Fix dir writer size accountingDavid Oberhollenzer
Count the *corrent* entry structure size, i.e. the on-disk one, not the in-memory one. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Fix dir writer: the index size is stored off-by-oneDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Ignore temporary files generated by EmacsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Implement flush function that generates all the tablesDavid Oberhollenzer
Mostly straight copy-pasta from the sqfshelper code, except it doesn't use the fstree functions. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Add recoding implementation for the xattr writerDavid Oberhollenzer
This commit implements the part of the API responsible for recoding and deduplicating xattr key-value blocks. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Add header with declarations for the sqfs_xattr_writer_tDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Move declarations for sqfs_xattr_reader_t to a seperate headerDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Fix absolute file paths in rdsquashfs unpackerDavid Oberhollenzer
Canonicalize the file names to make the diagnostics less scary. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Fix missing mutex unlick in data writer error pathDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Fix null-pointer deref in sqfsdiff initialization error pathDavid Oberhollenzer
If creating a dir reader fails, don't try to clean it up afterwards. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Fix out of bounds check in lzo_compressor_createDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Fix lzma2 VLI filter testingDavid Oberhollenzer
Starting out with 0, makes the loop condition evaluate to false and none of the filters are tested. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Fix memory leak in meta reader read inode functionDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Fix unwanted sign extension in lzma decompressorDavid Oberhollenzer
First extend the uint8_t to size_t, then do the arithmetic, otherwise there is an addtional implicit conversion to int, possibly resulting in unwanted sign extension. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Fix memory leaks in sqfs2tar error pathsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-28Make coverity happyDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Add a header for platform compatibillity fluffDavid Oberhollenzer
- We don't have "endian.h" everywhere. On some BSDs its in sys and on some BSDs the macros have different names. - We definitely don't have sysmacros.h on non-Unix-like systems. - Likewise for sys/types.h, sys/stat.h and their contents. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Replace usage of mode_t in libsquashfs with sqfs_u16David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Add enum with inode permissions for compatibility with non-POSIX systemsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Remove use of ssize_t from library APIDavid Oberhollenzer
ssize_t is only available on POSIX platforms and even there it is only defined to hold at least -1 in the range of negative numbers. This commit replaces ssize_t return types with sqfs_s32 and the coresponding function arguments with sqfs_u32. Because the range of positiv numbers for a signed 32 bit number is only half that of the unsigned version, additional checks have to be added. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Cleanup: replace fixed with data types with typedefsDavid Oberhollenzer
This is a fully automated search and replace, i.e. I ran this: git grep -l uint8_t | xargs sed -i 's/uint8_t/sqfs_u8/g' git grep -l uint16_t | xargs sed -i 's/uint16_t/sqfs_u16/g' git grep -l uint32_t | xargs sed -i 's/uint32_t/sqfs_u32/g' git grep -l uint64_t | xargs sed -i 's/uint64_t/sqfs_u64/g' git grep -l int8_t | xargs sed -i 's/int8_t/sqfs_s8/g' git grep -l int16_t | xargs sed -i 's/int16_t/sqfs_s16/g' git grep -l int32_t | xargs sed -i 's/int32_t/sqfs_s32/g' git grep -l int64_t | xargs sed -i 's/int64_t/sqfs_s64/g' and than added the appropriate definitions to sqfs/predef.h The whole point being better compatibillity with platforms that may not have an stdint.h with the propper definitions. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Add a pkg-config file for libsquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Fix typo in LZO_LIBS variableDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Cleanup: remove most of the payload pointer magic from libfstreeDavid Oberhollenzer
Now that dir_info_t and file_info_t have reasonably small, use them in tree_node_t directly instead of doing pointer arithmetic magic on the payload area. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Fix typo in error enumeratorDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Add missing comments on error enumeratorDavid Oberhollenzer
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>
2019-09-27Fix lzma compressor: test if compression actually shrunk the dataDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-27Add xz-utils based lzma compressor implementationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-26Update documentation on sqfs_data_writer_tDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-26Remove old data writer flags, and unused parametersDavid Oberhollenzer
- The write_data_from_file function no longer needs the block size - Also remove the old data writer flags, pass the flags argument directly to the begin-file function. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-26Remove the create I/O block from sqfs_file_t functionDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-26Replace the data writer enqueue with "append buffer to current file"David Oberhollenzer
This commit turns the file interface into an actual, generic file interface and does away with having to move around blocks outside the data writer. Instead the data writer takes over full control and responsibility of dividing the input data up into blocks propperly. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-26Add file API stub to sqfs data writerDavid Oberhollenzer
Basically move the state tracking from the old data writer over to the new one. 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>
2019-09-25Fix API changes in unit testsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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