* possible field values. It does not follow any references to
* other objects. */
- if ((o->object.flags & OBJECT_COMPRESSED) &&
+ if ((o->object.flags & OBJECT_COMPRESSED_XZ) &&
o->object.type != OBJECT_DATA)
return -EBADMSG;
case OBJECT_DATA: {
uint64_t h1, h2;
+ int compression, r;
if (le64toh(o->data.entry_offset) == 0)
log_warning(OFSfmt": unused data (entry_offset==0)", offset);
h1 = le64toh(o->data.hash);
- if (o->object.flags & OBJECT_COMPRESSED) {
-#ifdef HAVE_XZ
- void *b = NULL;
+ compression = o->object.flags & OBJECT_COMPRESSION_MASK;
+ if (compression) {
+ _cleanup_free_ void *b = NULL;
uint64_t alloc = 0, b_size;
- if (!uncompress_blob(o->data.payload,
- le64toh(o->object.size) - offsetof(Object, data.payload),
- &b, &alloc, &b_size, 0)) {
- log_error(OFSfmt": uncompression failed", offset);
- return -EBADMSG;
+ r = decompress_blob(compression,
+ o->data.payload,
+ le64toh(o->object.size) - offsetof(Object, data.payload),
+ &b, &alloc, &b_size, 0);
+ if (r < 0) {
+ log_error(OFSfmt": %s decompression failed: %s", offset,
+ object_compressed_to_string(compression), strerror(-r));
+ return r;
}
h2 = hash64(b, b_size);
- free(b);
-#else
- log_error("Compression is not supported");
- return -EPROTONOSUPPORT;
-#endif
} else
h2 = hash64(o->data.payload, le64toh(o->object.size) - offsetof(Object, data.payload));
goto fail;
}
- if ((o->object.flags & OBJECT_COMPRESSED) && !JOURNAL_HEADER_COMPRESSED(f->header)) {
- log_error("Compressed object in file without compression at "OFSfmt, p);
+ if ((o->object.flags & OBJECT_COMPRESSED_XZ) &&
+ (o->object.flags & OBJECT_COMPRESSED_LZ4)) {
+ log_error("Objected with double compression at "OFSfmt, p);
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if ((o->object.flags & OBJECT_COMPRESSED_XZ) && !JOURNAL_HEADER_COMPRESSED_XZ(f->header)) {
+ log_error("XZ compressed object in file without XZ compression at "OFSfmt, p);
+ r = -EBADMSG;
+ goto fail;
+ }
+
+ if ((o->object.flags & OBJECT_COMPRESSED_LZ4) && !JOURNAL_HEADER_COMPRESSED_LZ4(f->header)) {
+ log_error("LZ4 compressed object in file without LZ4 compression at "OFSfmt, p);
r = -EBADMSG;
goto fail;
}