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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The squashfs on-disk format uses 32 bit link counters, but the fstree
used 16 bit ones. Because the link count also includes child nodes,
this artificially limited the number of entries in a directory to ~64k
files.
This patch removes the limit by switching libfstree to 32 bit counters.
Reported-by: Marvin Renich <mrvn@renich.org>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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If fstree_mknode fails, because the parent link count would overflow,
the function fails and cleans up behind it. The problem arises because
the function does this check *after* inserting the node in the parent
node, so it is later free'd again, when destroying the rest of the
tree.
This patch moves the insertion after the check to mitigate the problem.
Reported-by: Marvin Renich <mrvn@renich.org>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The fstree sorting code got removed recently, in favour of inserting
at the correct position. The Windows directory scanning code still
used it's own list insertion code instead of mknode (so it could
allocate and translate the directory entry name in-place), which
broke the sorting order.
This issue is fixed in this commit.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Always insert the tree nodes in the correct oder and remove the
post-process sorting step.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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If the hard link counter or the inode number counter overflow the
maximum representable value (for SquashFS 16 bit and 32 bit
respecitively), abort with an error message.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Gets initialized to 2 for directories, 1 for all other types. The count
of the parent node is automatically incremented.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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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>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This commit exchanges some malloc(x + y * z) patterns that can be found
with a simple git grep and are obvious for the new wrappers.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Despite having a flag for that now, they still need to be initialized
because they are written straight to disk.
Fixes: d4d1854aaed867d28ebfc97afb3518254ab6fd4b
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Simplifies some task if we can just add a flag that a file has a framgent
or that it has already been detected as a duplicate.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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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>
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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>
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This commit makes sure that regular file tree nodes have one more slot
than necessary to support files that don't have fragments.
Also, it initializes the fragment data, which should help to deduplicate
some code ahead.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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