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journal/compress: fix calls to decompress_blob

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This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2014-07-07 18:31:10 -04:00
parent c92e531c82
commit 1ec7120e50
2 changed files with 27 additions and 40 deletions
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39
src/journal/journal-verify.c
View File

@ -53,6 +53,7 @@ static int journal_file_object_verify(JournalFile *f, uint64_t offset, Object *o
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);
@ -72,40 +73,22 @@ static int journal_file_object_verify(JournalFile *f, uint64_t offset, Object *o
h1 = le64toh(o->data.hash);
if (o->object.flags & OBJECT_COMPRESSED_XZ) {
#ifdef HAVE_XZ
compression = o->object.flags & OBJECT_COMPRESSION_MASK;
if (compression) {
_cleanup_free_ void *b = NULL;
uint64_t alloc = 0, b_size;
if (!decompress_blob_xz(o->data.payload,
le64toh(o->object.size) - offsetof(Object, data.payload),
&b, &alloc, &b_size, 0)) {
log_error(OFSfmt": XZ decompression 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);
#else
log_error("XZ compression is not supported");
return -EPROTONOSUPPORT;
#endif
} else if (o->object.flags & OBJECT_COMPRESSED_LZ4) {
#ifdef HAVE_XZ
_cleanup_free_ void *b = NULL;
uint64_t alloc = 0, b_size;
if (!decompress_blob_xz(o->data.payload,
le64toh(o->object.size) - offsetof(Object, data.payload),
&b, &alloc, &b_size, 0)) {
log_error(OFSfmt": LZ4 decompression failed", offset);
return -EBADMSG;
}
h2 = hash64(b, b_size);
#else
log_error("XZ compression is not supported");
return -EPROTONOSUPPORT;
#endif
} else
h2 = hash64(o->data.payload, le64toh(o->object.size) - offsetof(Object, data.payload));

28
src/journal/sd-journal.c
View File

@ -1983,6 +1983,7 @@ _public_ int sd_journal_get_data(sd_journal *j, const char *field, const void **
uint64_t p, l;
le64_t le_hash;
size_t t;
int compression;
p = le64toh(o->entry.items[i].object_offset);
le_hash = o->entry.items[i].hash;
@ -1995,17 +1996,19 @@ _public_ int sd_journal_get_data(sd_journal *j, const char *field, const void **
l = le64toh(o->object.size) - offsetof(Object, data.payload);
if ((o->object.flags & OBJECT_COMPRESSION_MASK) &&
decompress_startswith(o->object.flags & OBJECT_COMPRESSION_MASK,
compression = o->object.flags & OBJECT_COMPRESSION_MASK;
if (compression &&
decompress_startswith(compression,
o->data.payload, l,
&f->compress_buffer, &f->compress_buffer_size,
field, field_length, '=')) {
uint64_t rsize;
r = decompress_blob_xz(o->data.payload, l,
&f->compress_buffer, &f->compress_buffer_size, &rsize,
j->data_threshold);
r = decompress_blob(compression,
o->data.payload, l,
&f->compress_buffer, &f->compress_buffer_size, &rsize,
j->data_threshold);
if (r < 0)
return r;
@ -2040,6 +2043,7 @@ _public_ int sd_journal_get_data(sd_journal *j, const char *field, const void **
static int return_data(sd_journal *j, JournalFile *f, Object *o, const void **data, size_t *size) {
size_t t;
uint64_t l;
int compression, r;
l = le64toh(o->object.size) - offsetof(Object, data.payload);
t = (size_t) l;
@ -2048,18 +2052,18 @@ static int return_data(sd_journal *j, JournalFile *f, Object *o, const void **da
if ((uint64_t) t != l)
return -E2BIG;
if (o->object.flags & OBJECT_COMPRESSED_XZ) {
#ifdef HAVE_XZ
compression = o->object.flags & OBJECT_COMPRESSION_MASK;
if (compression) {
uint64_t rsize;
if (!decompress_blob_xz(o->data.payload, l, &f->compress_buffer, &f->compress_buffer_size, &rsize, j->data_threshold))
return -EBADMSG;
r = decompress_blob(compression,
o->data.payload, l, &f->compress_buffer,
&f->compress_buffer_size, &rsize, j->data_threshold);
if (r < 0)
return r;
*data = f->compress_buffer;
*size = (size_t) rsize;
#else
return -EPROTONOSUPPORT;
#endif
} else {
*data = o->data.payload;
*size = t;