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| author | David Oberhollenzer <goliath@infraroot.at> | 2023-11-06 11:14:03 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2023-11-16 18:53:09 -0500 |
| commit | fa894a36a9090c53050cf0e9cf186c4521209974 (patch) | |
| tree | f8c52aef27a87acefd355c1d98518b47341eca70 | |
| parent | 99374ff189dab2d678449d3dcf3756dccfd2acc2 (diff) | |
| download | u-boot-fa894a36a9090c53050cf0e9cf186c4521209974.zip u-boot-fa894a36a9090c53050cf0e9cf186c4521209974.tar.gz u-boot-fa894a36a9090c53050cf0e9cf186c4521209974.tar.bz2 | |
fs/squashfs: enable LZ4 compression support
The structure is identical to the existing compressor implementations,
trivially adding lz4 decompression to sqfs_decompress.
The changes were tested using a sandbox build. An LZ4 compressed
squashfs image was bound as a host block device.
Signed-off-by: David Oberhollenzer <goliath@infraroot.at>
Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
| -rw-r--r-- | fs/squashfs/sqfs_decompressor.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/squashfs/sqfs_decompressor.c b/fs/squashfs/sqfs_decompressor.c index 6b3e01c..cfd1153 100644 --- a/fs/squashfs/sqfs_decompressor.c +++ b/fs/squashfs/sqfs_decompressor.c @@ -18,6 +18,10 @@ #include <u-boot/zlib.h> #endif +#if IS_ENABLED(CONFIG_LZ4) +#include <u-boot/lz4.h> +#endif + #if IS_ENABLED(CONFIG_ZSTD) #include <linux/zstd.h> #endif @@ -38,6 +42,10 @@ int sqfs_decompressor_init(struct squashfs_ctxt *ctxt) case SQFS_COMP_ZLIB: break; #endif +#if IS_ENABLED(CONFIG_LZ4) + case SQFS_COMP_LZ4: + break; +#endif #if IS_ENABLED(CONFIG_ZSTD) case SQFS_COMP_ZSTD: ctxt->zstd_workspace = malloc(zstd_dctx_workspace_bound()); @@ -66,6 +74,10 @@ void sqfs_decompressor_cleanup(struct squashfs_ctxt *ctxt) case SQFS_COMP_ZLIB: break; #endif +#if IS_ENABLED(CONFIG_LZ4) + case SQFS_COMP_LZ4: + break; +#endif #if IS_ENABLED(CONFIG_ZSTD) case SQFS_COMP_ZSTD: free(ctxt->zstd_workspace); @@ -139,6 +151,17 @@ int sqfs_decompress(struct squashfs_ctxt *ctxt, void *dest, break; #endif +#if IS_ENABLED(CONFIG_LZ4) + case SQFS_COMP_LZ4: + ret = LZ4_decompress_safe(source, dest, src_len, *dest_len); + if (ret < 0) { + printf("LZ4 decompression failed.\n"); + return -EINVAL; + } + + ret = 0; + break; +#endif #if IS_ENABLED(CONFIG_ZSTD) case SQFS_COMP_ZSTD: ret = sqfs_zstd_decompress(ctxt, dest, *dest_len, source, src_len); |