squashfs-tools-ng.git/lib/sqfs, branch v1.3.2

libsqfs: add a threshold for extended directory inodes with index

2024-01-24T08:56:10+00:00

mksquashfs generates extended inodes if a directory contains 256 entries. libsquashfs so far only generated extended inodes if there is no other way to encode it. Mimic the behaviour of mksquashfs by adding a threshold. For this to work, the "sqfs_inode_set_xattr_index" function has to be changed to not immediately try to demote inodes to basic types. The fstree serialization is modified to do that itself if the index is 0xFFFFFFFF and the target is not a directory inode. Signed-off-by: David Oberhollenzer

Get rid of the built-in copy of LZ4

2022-11-22T07:17:44+00:00

On Linux or BSD distributions we have a native version installed via package manager. On Windows, we can just build it from source like the other libraries. Signed-off-by: David Oberhollenzer

Make some string functions from libcompat available to libsquashfs

2022-11-21T14:27:10+00:00

Signed-off-by: David Oberhollenzer

libsqfs: Fix an overzealous bounds check in the block processor

2022-11-18T15:21:12+00:00

When (during fragment deduplication) a fragment block is read back from disk and unpacked, it can happen that it is _exactly_ the given block size. The bounds check did '>=' instead of '>' and failed in that case with a "data corruption" error. Signed-off-by: David Oberhollenzer

libsqfs: Initialize the return value in sqfs_compressor_create

2022-11-18T15:21:11+00:00

Initialize the output compressor pointer to NULL, so if the function fails, the value is propperly initialized to a NULL pointer instead of relying on the function user to initialize it. Signed-off-by: David Oberhollenzer

block writer: further cleanup of the block writer logic

2022-10-10T18:54:37+00:00

Signed-off-by: David Oberhollenzer

block writer: move block comaprison to utility function

2022-09-20T06:47:02+00:00

Slightly modify the byte-for-byte comparison function to compare an arbitrary range in a file and move it to libutil. Instead of calling it for each block in the block writer, simply let it check an entire range in the block writer and compute the range position/size of the reference ahead, before looking for potential matches. Signed-off-by: David Oberhollenzer

block writer: remove open coded array

2022-09-20T06:47:02+00:00

Instead of open coding it, use the array_t type from libutil. Signed-off-by: David Oberhollenzer

Make sqfs_tree_node_get_path more robust

2022-07-08T17:17:35+00:00

Test against various invariants: - Every non-root node must have a name - The root node muts not have a name - The name must not be ".." or "." - The name must not contain '/' - The loop that chases parent pointers must terminate, i.e. we must never reach the starting state again (link loop). Furthermore, make sure the sum of all path components plus separators does not overflow. Signed-off-by: David Oberhollenzer

Move sqfs_tree_node_get_path to libsquashfs

2022-07-08T17:17:35+00:00

Signed-off-by: David Oberhollenzer