struct wim_lookup_table_entry *lte;
lte = CALLOC(1, sizeof(struct wim_lookup_table_entry));
- if (lte) {
- lte->part_number = 1;
- lte->refcnt = 1;
- } else {
+ if (lte == NULL) {
ERROR("Out of memory (tried to allocate %zu bytes for "
"lookup table entry)",
sizeof(struct wim_lookup_table_entry));
+ return NULL;
}
+ lte->refcnt = 1;
+ BUILD_BUG_ON(RESOURCE_NONEXISTENT != 0);
return lte;
}
struct wim_lookup_table_entry *new;
new = memdup(old, sizeof(struct wim_lookup_table_entry));
- if (!new)
+ if (new == NULL)
return NULL;
new->extracted_file = NULL;
switch (new->resource_location) {
+ case RESOURCE_IN_WIM:
+ list_add(&new->rspec_node, &new->rspec->stream_list);
+ break;
+
case RESOURCE_IN_FILE_ON_DISK:
#ifdef __WIN32__
case RESOURCE_WIN32_ENCRYPTED:
(void*)&old->staging_file_name);
#endif
new->file_on_disk = TSTRDUP(old->file_on_disk);
- if (!new->file_on_disk)
+ if (new->file_on_disk == NULL)
goto out_free;
break;
case RESOURCE_IN_ATTACHED_BUFFER:
- new->attached_buffer = memdup(old->attached_buffer,
- wim_resource_size(old));
- if (!new->attached_buffer)
+ new->attached_buffer = memdup(old->attached_buffer, old->size);
+ if (new->attached_buffer == NULL)
goto out_free;
break;
#ifdef WITH_NTFS_3G
if (old->ntfs_loc) {
struct ntfs_location *loc;
loc = memdup(old->ntfs_loc, sizeof(struct ntfs_location));
- if (!loc)
+ if (loc == NULL)
goto out_free;
loc->path = NULL;
loc->stream_name = NULL;
new->ntfs_loc = loc;
loc->path = STRDUP(old->ntfs_loc->path);
- if (!loc->path)
+ if (loc->path == NULL)
goto out_free;
- if (loc->stream_name_nchars) {
+ if (loc->stream_name_nchars != 0) {
loc->stream_name = memdup(old->ntfs_loc->stream_name,
loc->stream_name_nchars * 2);
- if (!loc->stream_name)
+ if (loc->stream_name == NULL)
goto out_free;
}
}
{
if (lte) {
switch (lte->resource_location) {
+ case RESOURCE_IN_WIM:
+ list_del(<e->rspec_node);
+ if (list_empty(<e->rspec->stream_list))
+ FREE(lte->rspec);
+ break;
case RESOURCE_IN_FILE_ON_DISK:
#ifdef __WIN32__
case RESOURCE_WIN32_ENCRYPTED:
void
free_lookup_table(struct wim_lookup_table *table)
{
- DEBUG2("Freeing lookup table");
+ DEBUG("Freeing lookup table.");
if (table) {
if (table->array) {
for_lookup_table_entry(table,
}
}
+static void
+lookup_table_insert_raw(struct wim_lookup_table *table,
+ struct wim_lookup_table_entry *lte)
+{
+ size_t i = lte->hash_short % table->capacity;
+
+ hlist_add_head(<e->hash_list, &table->array[i]);
+}
+
+static void
+enlarge_lookup_table(struct wim_lookup_table *table)
+{
+ size_t old_capacity, new_capacity;
+ struct hlist_head *old_array, *new_array;
+ struct wim_lookup_table_entry *lte;
+ struct hlist_node *cur, *tmp;
+ size_t i;
+
+ old_capacity = table->capacity;
+ new_capacity = old_capacity * 2;
+ new_array = CALLOC(new_capacity, sizeof(struct hlist_head));
+ if (new_array == NULL)
+ return;
+ old_array = table->array;
+ table->array = new_array;
+ table->capacity = new_capacity;
+
+ for (i = 0; i < old_capacity; i++) {
+ hlist_for_each_entry_safe(lte, cur, tmp, &old_array[i], hash_list) {
+ hlist_del(<e->hash_list);
+ lookup_table_insert_raw(table, lte);
+ }
+ }
+ FREE(old_array);
+}
+
+
/*
* Inserts an entry into the lookup table.
*
lookup_table_insert(struct wim_lookup_table *table,
struct wim_lookup_table_entry *lte)
{
- size_t i = lte->hash_short % table->capacity;
- hlist_add_head(<e->hash_list, &table->array[i]);
-
- /* XXX Make the table grow when too many entries have been inserted. */
- table->num_entries++;
+ lookup_table_insert_raw(table, lte);
+ if (++table->num_entries > table->capacity)
+ enlarge_lookup_table(table);
}
static void
hlist_for_each_entry_safe(lte, pos, tmp, &table->array[i],
hash_list)
{
- wimlib_assert2(!(lte->resource_entry.flags & WIM_RESHDR_FLAG_METADATA));
ret = visitor(lte, arg);
if (ret)
return ret;
}
/* qsort() callback that sorts streams (represented by `struct
- * wim_lookup_table_entry's) into an order optimized for reading and writing.
+ * wim_lookup_table_entry's) into an order optimized for reading.
*
* Sorting is done primarily by resource location, then secondarily by a
* per-resource location order. For example, resources in WIM files are sorted
{
const struct wim_lookup_table_entry *lte1, *lte2;
int v;
+ WIMStruct *wim1, *wim2;
lte1 = *(const struct wim_lookup_table_entry**)p1;
lte2 = *(const struct wim_lookup_table_entry**)p2;
switch (lte1->resource_location) {
case RESOURCE_IN_WIM:
+ wim1 = lte1->rspec->wim;
+ wim2 = lte2->rspec->wim;
/* Different (possibly split) WIMs? */
- if (lte1->wim != lte2->wim) {
- v = memcmp(lte1->wim->hdr.guid, lte2->wim->hdr.guid,
- WIM_GID_LEN);
+ if (wim1 != wim2) {
+ v = memcmp(wim1->hdr.guid, wim2->hdr.guid, WIM_GID_LEN);
if (v)
return v;
}
/* Different part numbers in the same WIM? */
- v = (int)lte1->wim->hdr.part_number - (int)lte2->wim->hdr.part_number;
+ v = (int)wim1->hdr.part_number - (int)wim2->hdr.part_number;
if (v)
return v;
- /* Compare by offset. */
- if (lte1->resource_entry.offset < lte2->resource_entry.offset)
- return -1;
- else if (lte1->resource_entry.offset > lte2->resource_entry.offset)
- return 1;
- return 0;
+ if (lte1->rspec->offset_in_wim != lte2->rspec->offset_in_wim)
+ return cmp_u64(lte1->rspec->offset_in_wim,
+ lte2->rspec->offset_in_wim);
+
+ return cmp_u64(lte1->offset_in_res, lte2->offset_in_res);
+
case RESOURCE_IN_FILE_ON_DISK:
+#ifdef WITH_FUSE
+ case RESOURCE_IN_STAGING_FILE:
+#endif
#ifdef __WIN32__
case RESOURCE_WIN32_ENCRYPTED:
#endif
}
int
-sort_stream_list_by_sequential_order(struct list_head *stream_list,
- size_t list_head_offset)
+sort_stream_list(struct list_head *stream_list,
+ size_t list_head_offset,
+ int (*compar)(const void *, const void*))
{
struct list_head *cur;
struct wim_lookup_table_entry **array;
list_for_each(cur, stream_list)
num_streams++;
+ if (num_streams <= 1)
+ return 0;
+
array_size = num_streams * sizeof(array[0]);
array = MALLOC(array_size);
- if (!array)
+ if (array == NULL)
return WIMLIB_ERR_NOMEM;
+
cur = stream_list->next;
for (i = 0; i < num_streams; i++) {
array[i] = (struct wim_lookup_table_entry*)((u8*)cur -
cur = cur->next;
}
- qsort(array, num_streams, sizeof(array[0]),
- cmp_streams_by_sequential_order);
+ qsort(array, num_streams, sizeof(array[0]), compar);
INIT_LIST_HEAD(stream_list);
for (i = 0; i < num_streams; i++) {
return 0;
}
+/* Sort the specified list of streams in an order optimized for reading. */
+int
+sort_stream_list_by_sequential_order(struct list_head *stream_list,
+ size_t list_head_offset)
+{
+ return sort_stream_list(stream_list, list_head_offset,
+ cmp_streams_by_sequential_order);
+}
+
static int
add_lte_to_array(struct wim_lookup_table_entry *lte,
/* On-disk format of a WIM lookup table entry (stream entry). */
struct wim_lookup_table_entry_disk {
- /* Location, offset, compression status, and metadata status of the
- * stream. */
- struct resource_entry_disk resource_entry;
+ /* Size, offset, and flags of the stream. */
+ struct wim_reshdr_disk reshdr;
/* Which part of the split WIM this stream is in; indexed from 1. */
le16 part_number;
#define WIM_LOOKUP_TABLE_ENTRY_DISK_SIZE 50
-void
-lte_init_wim(struct wim_lookup_table_entry *lte, WIMStruct *wim)
+/* Validate the size and location of a WIM resource. */
+static int
+validate_resource(const struct wim_resource_spec *rspec)
{
- lte->resource_location = RESOURCE_IN_WIM;
- lte->wim = wim;
- if (lte->resource_entry.flags & WIM_RESHDR_FLAG_COMPRESSED)
- lte->compression_type = wim->compression_type;
- else
- lte->compression_type = WIMLIB_COMPRESSION_TYPE_NONE;
+ struct wim_lookup_table_entry *lte;
+ u64 cur_offset;
+
+ /* Verify that calculating the offset of the end of the resource doesn't
+ * overflow. */
+ if (rspec->offset_in_wim + rspec->size_in_wim < rspec->size_in_wim)
+ goto invalid;
+
+ /* Verify that each stream in the resource has a valid offset and size,
+ * and that no streams overlap, and that the streams were added in order
+ * of increasing offset. */
+ cur_offset = 0;
+ list_for_each_entry(lte, &rspec->stream_list, rspec_node) {
+ if (lte->offset_in_res + lte->size < lte->size ||
+ lte->offset_in_res + lte->size > rspec->uncompressed_size ||
+ lte->offset_in_res < cur_offset)
+ goto invalid;
+
+ cur_offset = lte->offset_in_res + lte->size;
+ }
+ return 0;
+
+invalid:
- if (wim_is_pipable(wim))
- lte->is_pipable = 1;
+ ERROR("Invalid resource entry!");
+ return WIMLIB_ERR_INVALID_LOOKUP_TABLE_ENTRY;
}
/*
- * Reads the lookup table from a WIM file.
+ * Reads the lookup table from a WIM file. Each entry specifies a stream that
+ * the WIM file contains, along with its location and SHA1 message digest.
*
* Saves lookup table entries for non-metadata streams in a hash table, and
* saves the metadata entry for each image in a special per-image location (the
* WIMLIB_ERR_SUCCESS (0)
* WIMLIB_ERR_INVALID_LOOKUP_TABLE_ENTRY
* WIMLIB_ERR_RESOURCE_NOT_FOUND
+ *
+ * Or an error code caused by failure to read the lookup table into memory.
*/
int
read_wim_lookup_table(WIMStruct *wim)
size_t num_entries;
struct wim_lookup_table *table;
struct wim_lookup_table_entry *cur_entry, *duplicate_entry;
+ struct wim_resource_spec *cur_rspec;
void *buf;
+ bool back_to_back_pack;
+ DEBUG("Reading lookup table.");
+
+ /* Sanity check: lookup table entries are 50 bytes each. */
BUILD_BUG_ON(sizeof(struct wim_lookup_table_entry_disk) !=
WIM_LOOKUP_TABLE_ENTRY_DISK_SIZE);
- DEBUG("Reading lookup table: offset %"PRIu64", size %"PRIu64"",
- wim->hdr.lookup_table_res_entry.offset,
- wim->hdr.lookup_table_res_entry.size);
-
/* Calculate number of entries in the lookup table. */
- num_entries = wim->hdr.lookup_table_res_entry.size /
+ num_entries = wim->hdr.lookup_table_reshdr.uncompressed_size /
sizeof(struct wim_lookup_table_entry_disk);
-
/* Read the lookup table into a buffer. */
- ret = res_entry_to_data(&wim->hdr.lookup_table_res_entry, wim, &buf);
+ ret = wim_reshdr_to_data(&wim->hdr.lookup_table_reshdr, wim, &buf);
if (ret)
goto out;
- /* Allocate hash table. */
+ /* Allocate a hash table to map SHA1 message digests into stream
+ * specifications. This is the in-memory "lookup table". */
table = new_lookup_table(num_entries * 2 + 1);
- if (!table) {
+ if (table == NULL) {
ERROR("Not enough memory to read lookup table.");
ret = WIMLIB_ERR_NOMEM;
goto out_free_buf;
}
- /* Allocate and initalize `struct wim_lookup_table_entry's from the
- * on-disk lookup table. */
+ /* Allocate and initalize stream entries from the raw lookup table
+ * buffer. */
wim->current_image = 0;
+ cur_rspec = NULL;
for (i = 0; i < num_entries; i++) {
const struct wim_lookup_table_entry_disk *disk_entry =
&((const struct wim_lookup_table_entry_disk*)buf)[i];
+ u16 part_number;
+ struct wim_reshdr reshdr;
+
+ get_wim_reshdr(&disk_entry->reshdr, &reshdr);
+
+ DEBUG("reshdr: size_in_wim=%"PRIu64", "
+ "uncompressed_size=%"PRIu64", "
+ "offset_in_wim=%"PRIu64", "
+ "flags=0x%02x",
+ reshdr.size_in_wim, reshdr.uncompressed_size,
+ reshdr.offset_in_wim, reshdr.flags);
+
+ if (wim->hdr.wim_version == WIM_VERSION_DEFAULT)
+ reshdr.flags &= ~WIM_RESHDR_FLAG_PACKED_STREAMS;
cur_entry = new_lookup_table_entry();
- if (!cur_entry) {
- ERROR("Not enough memory to read lookup table.");
+ if (cur_entry == NULL) {
+ ERROR("Not enough memory to read lookup table!");
ret = WIMLIB_ERR_NOMEM;
- goto out_free_lookup_table;
+ goto err;
}
- cur_entry->wim = wim;
- cur_entry->resource_location = RESOURCE_IN_WIM;
- get_resource_entry(&disk_entry->resource_entry, &cur_entry->resource_entry);
- cur_entry->part_number = le16_to_cpu(disk_entry->part_number);
+ part_number = le16_to_cpu(disk_entry->part_number);
cur_entry->refcnt = le32_to_cpu(disk_entry->refcnt);
copy_hash(cur_entry->hash, disk_entry->hash);
- lte_init_wim(cur_entry, wim);
- if (cur_entry->part_number != wim->hdr.part_number) {
+ if (part_number != wim->hdr.part_number) {
WARNING("A lookup table entry in part %hu of the WIM "
"points to part %hu (ignoring it)",
- wim->hdr.part_number, cur_entry->part_number);
+ wim->hdr.part_number, part_number);
+ free_lookup_table_entry(cur_entry);
+ continue;
+ }
+
+ if (!(reshdr.flags & (WIM_RESHDR_FLAG_PACKED_STREAMS |
+ WIM_RESHDR_FLAG_COMPRESSED))) {
+ if (reshdr.uncompressed_size != reshdr.size_in_wim) {
+ ERROR("Invalid resource entry!");
+ ret = WIMLIB_ERR_INVALID_LOOKUP_TABLE_ENTRY;
+ goto err;
+ }
+ }
+
+ back_to_back_pack = false;
+ if (!(reshdr.flags & WIM_RESHDR_FLAG_PACKED_STREAMS) ||
+ cur_rspec == NULL ||
+ (back_to_back_pack =
+ ((reshdr.flags & WIM_RESHDR_FLAG_PACKED_STREAMS) &&
+ reshdr.uncompressed_size == WIM_PACK_MAGIC_NUMBER &&
+ cur_rspec != NULL &&
+ cur_rspec->size_in_wim != 0)))
+ {
+ /* Starting new run of streams that share the same WIM
+ * resource. */
+ struct wim_lookup_table_entry *prev_entry = NULL;
+
+ if (back_to_back_pack &&
+ !list_empty(&cur_rspec->stream_list))
+ {
+ prev_entry = list_entry(cur_rspec->stream_list.prev,
+ struct wim_lookup_table_entry,
+ rspec_node);
+ lte_unbind_wim_resource_spec(prev_entry);
+ }
+ if (cur_rspec != NULL) {
+ ret = validate_resource(cur_rspec);
+ if (ret)
+ goto err;
+ }
+
+ /* Allocate the resource specification and initialize it
+ * with values from the current stream entry. */
+ cur_rspec = MALLOC(sizeof(*cur_rspec));
+ if (cur_rspec == NULL) {
+ ERROR("Not enough memory to read lookup table!");
+ ret = WIMLIB_ERR_NOMEM;
+ goto err;
+ }
+ wim_res_hdr_to_spec(&reshdr, wim, cur_rspec);
+
+ if (prev_entry)
+ lte_bind_wim_resource_spec(prev_entry, cur_rspec);
+ }
+
+ if ((reshdr.flags & WIM_RESHDR_FLAG_PACKED_STREAMS) &&
+ reshdr.uncompressed_size == WIM_PACK_MAGIC_NUMBER)
+ {
+ /* Found the specification for the packed resource.
+ * Transfer the values to the `struct
+ * wim_resource_spec', and discard the current stream
+ * since this lookup table entry did not, in fact,
+ * correspond to a "stream".
+ */
+
+ /* Uncompressed size of the resource pack is actually
+ * stored in the header of the resource itself. Read
+ * it, and also grab the chunk size and compression type
+ * (which are not necessarily the defaults from the WIM
+ * header). */
+ struct alt_chunk_table_header_disk hdr;
+
+ ret = full_pread(&wim->in_fd, &hdr,
+ sizeof(hdr), reshdr.offset_in_wim);
+ if (ret)
+ goto err;
+
+ cur_rspec->uncompressed_size = le64_to_cpu(hdr.res_usize);
+ cur_rspec->offset_in_wim = reshdr.offset_in_wim;
+ cur_rspec->size_in_wim = reshdr.size_in_wim;
+ cur_rspec->flags = reshdr.flags;
+
+ /* Compression format numbers must be the same as in
+ * WIMGAPI to be compatible here. */
+ BUILD_BUG_ON(WIMLIB_COMPRESSION_TYPE_NONE != 0);
+ BUILD_BUG_ON(WIMLIB_COMPRESSION_TYPE_LZX != 1);
+ BUILD_BUG_ON(WIMLIB_COMPRESSION_TYPE_XPRESS != 2);
+ BUILD_BUG_ON(WIMLIB_COMPRESSION_TYPE_LZMS != 3);
+ cur_rspec->compression_type = le32_to_cpu(hdr.compression_format);
+
+ cur_rspec->chunk_size = le32_to_cpu(hdr.chunk_size);
+
+ DEBUG("Full pack is %"PRIu64" compressed bytes "
+ "at file offset %"PRIu64" (flags 0x%02x)",
+ cur_rspec->size_in_wim,
+ cur_rspec->offset_in_wim,
+ cur_rspec->flags);
free_lookup_table_entry(cur_entry);
continue;
}
if (is_zero_hash(cur_entry->hash)) {
- WARNING("The WIM lookup table contains an entry with a "
- "SHA1 message digest of all 0's (ignoring it)");
free_lookup_table_entry(cur_entry);
continue;
}
- if (!(cur_entry->resource_entry.flags & WIM_RESHDR_FLAG_COMPRESSED)
- && (cur_entry->resource_entry.size !=
- cur_entry->resource_entry.original_size))
- {
- if (wimlib_print_errors) {
- WARNING("Found uncompressed resource with "
- "original size (%"PRIu64") not the same "
- "as compressed size (%"PRIu64")",
- cur_entry->resource_entry.original_size,
- cur_entry->resource_entry.size);
- if (cur_entry->resource_entry.original_size) {
- WARNING("Overriding compressed size with original size.");
- cur_entry->resource_entry.size =
- cur_entry->resource_entry.original_size;
- } else {
- WARNING("Overriding original size with compressed size");
- cur_entry->resource_entry.original_size =
- cur_entry->resource_entry.size;
- }
- }
+ if (reshdr.flags & WIM_RESHDR_FLAG_PACKED_STREAMS) {
+ /* Continuing the pack with another stream. */
+ DEBUG("Continuing pack with stream: "
+ "%"PRIu64" uncompressed bytes @ "
+ "resource offset %"PRIu64")",
+ reshdr.size_in_wim, reshdr.offset_in_wim);
}
- if (cur_entry->resource_entry.flags & WIM_RESHDR_FLAG_METADATA) {
+ lte_bind_wim_resource_spec(cur_entry, cur_rspec);
+ if (reshdr.flags & WIM_RESHDR_FLAG_PACKED_STREAMS) {
+ /* In packed runs, the offset field is used for
+ * in-resource offset, not the in-WIM offset, and the
+ * size field is used for the uncompressed size, not the
+ * compressed size. */
+ cur_entry->offset_in_res = reshdr.offset_in_wim;
+ cur_entry->size = reshdr.size_in_wim;
+ cur_entry->flags = reshdr.flags;
+ } else {
+ /* Normal case: The stream corresponds one-to-one with
+ * the resource entry. */
+ cur_entry->offset_in_res = 0;
+ cur_entry->size = reshdr.uncompressed_size;
+ cur_entry->flags = reshdr.flags;
+ cur_rspec = NULL;
+ }
+
+ if (cur_entry->flags & WIM_RESHDR_FLAG_METADATA) {
/* Lookup table entry for a metadata resource */
+
+ /* Metadata entries with no references must be ignored;
+ * see for example the WinPE WIMs from the WAIK v2.1.
+ * */
+ if (cur_entry->refcnt == 0) {
+ free_lookup_table_entry(cur_entry);
+ continue;
+ }
+
if (cur_entry->refcnt != 1) {
if (wimlib_print_errors) {
ERROR("Found metadata resource with refcnt != 1:");
print_lookup_table_entry(cur_entry, stderr);
}
ret = WIMLIB_ERR_INVALID_LOOKUP_TABLE_ENTRY;
- goto out_free_cur_entry;
+ goto err;
}
if (wim->hdr.part_number != 1) {
DEBUG("Found metadata resource for image %u at "
"offset %"PRIu64".",
wim->current_image + 1,
- cur_entry->resource_entry.offset);
+ cur_entry->rspec->offset_in_wim);
wim->image_metadata[
wim->current_image++]->metadata_lte = cur_entry;
- } else {
- /* Lookup table entry for a stream that is not a
- * metadata resource */
- duplicate_entry = lookup_resource(table, cur_entry->hash);
- if (duplicate_entry) {
- if (wimlib_print_errors) {
- WARNING("The WIM lookup table contains two entries with the "
- "same SHA1 message digest!");
- WARNING("The first entry is:");
- print_lookup_table_entry(duplicate_entry, stderr);
- WARNING("The second entry is:");
- print_lookup_table_entry(cur_entry, stderr);
- }
- free_lookup_table_entry(cur_entry);
- continue;
- } else {
- lookup_table_insert(table, cur_entry);
+ continue;
+ }
+
+ /* Lookup table entry for a stream that is not a metadata
+ * resource. */
+ duplicate_entry = lookup_resource(table, cur_entry->hash);
+ if (duplicate_entry) {
+ if (wimlib_print_errors) {
+ WARNING("The WIM lookup table contains two entries with the "
+ "same SHA1 message digest!");
+ WARNING("The first entry is:");
+ print_lookup_table_entry(duplicate_entry, stderr);
+ WARNING("The second entry is:");
+ print_lookup_table_entry(cur_entry, stderr);
}
+ free_lookup_table_entry(cur_entry);
+ continue;
}
+
+ /* Finally, insert the stream into the lookup table, keyed by
+ * its SHA1 message digest. */
+ lookup_table_insert(table, cur_entry);
+ }
+ cur_entry = NULL;
+
+ /* Validate the last resource. */
+ if (cur_rspec != NULL) {
+ ret = validate_resource(cur_rspec);
+ if (ret)
+ goto err;
}
if (wim->hdr.part_number == 1 && wim->current_image != wim->hdr.image_count) {
wim->lookup_table = table;
ret = 0;
goto out_free_buf;
-out_free_cur_entry:
- FREE(cur_entry);
-out_free_lookup_table:
+
+err:
+ if (cur_rspec && list_empty(&cur_rspec->stream_list))
+ FREE(cur_rspec);
+ free_lookup_table_entry(cur_entry);
free_lookup_table(table);
out_free_buf:
FREE(buf);
return ret;
}
-
static void
-write_wim_lookup_table_entry(const struct wim_lookup_table_entry *lte,
- struct wim_lookup_table_entry_disk *disk_entry)
+put_wim_lookup_table_entry(struct wim_lookup_table_entry_disk *disk_entry,
+ const struct wim_reshdr *out_reshdr,
+ u16 part_number, u32 refcnt, const u8 *hash)
{
- put_resource_entry(<e->output_resource_entry, &disk_entry->resource_entry);
- disk_entry->part_number = cpu_to_le16(lte->part_number);
- disk_entry->refcnt = cpu_to_le32(lte->out_refcnt);
- copy_hash(disk_entry->hash, lte->hash);
+ put_wim_reshdr(out_reshdr, &disk_entry->reshdr);
+ disk_entry->part_number = cpu_to_le16(part_number);
+ disk_entry->refcnt = cpu_to_le32(refcnt);
+ copy_hash(disk_entry->hash, hash);
}
-static int
+int
write_wim_lookup_table_from_stream_list(struct list_head *stream_list,
struct filedes *out_fd,
- struct resource_entry *out_res_entry,
+ u16 part_number,
+ struct wim_reshdr *out_reshdr,
int write_resource_flags)
{
size_t table_size;
struct wim_lookup_table_entry_disk *table_buf;
struct wim_lookup_table_entry_disk *table_buf_ptr;
int ret;
+ u64 prev_res_offset_in_wim = ~0ULL;
table_size = 0;
- list_for_each_entry(lte, stream_list, lookup_table_list)
+ list_for_each_entry(lte, stream_list, lookup_table_list) {
table_size += sizeof(struct wim_lookup_table_entry_disk);
+ if (lte->out_reshdr.flags & WIM_RESHDR_FLAG_PACKED_STREAMS &&
+ lte->out_res_offset_in_wim != prev_res_offset_in_wim)
+ {
+ table_size += sizeof(struct wim_lookup_table_entry_disk);
+ prev_res_offset_in_wim = lte->out_res_offset_in_wim;
+ }
+ }
+
DEBUG("Writing WIM lookup table (size=%zu, offset=%"PRIu64")",
table_size, out_fd->offset);
table_buf = MALLOC(table_size);
- if (!table_buf) {
+ if (table_buf == NULL) {
ERROR("Failed to allocate %zu bytes for temporary lookup table",
table_size);
return WIMLIB_ERR_NOMEM;
}
table_buf_ptr = table_buf;
- list_for_each_entry(lte, stream_list, lookup_table_list)
- write_wim_lookup_table_entry(lte, table_buf_ptr++);
+
+ prev_res_offset_in_wim = ~0ULL;
+ list_for_each_entry(lte, stream_list, lookup_table_list) {
+
+ put_wim_lookup_table_entry(table_buf_ptr++,
+ <e->out_reshdr,
+ part_number,
+ lte->out_refcnt,
+ lte->hash);
+ if (lte->out_reshdr.flags & WIM_RESHDR_FLAG_PACKED_STREAMS &&
+ lte->out_res_offset_in_wim != prev_res_offset_in_wim)
+ {
+ /* Put the main resource entry for the pack. */
+
+ struct wim_reshdr reshdr;
+
+ reshdr.offset_in_wim = lte->out_res_offset_in_wim;
+ reshdr.size_in_wim = lte->out_res_size_in_wim;
+ reshdr.uncompressed_size = WIM_PACK_MAGIC_NUMBER;
+ reshdr.flags = WIM_RESHDR_FLAG_PACKED_STREAMS;
+
+ DEBUG("Putting main entry for pack: "
+ "size_in_wim=%"PRIu64", "
+ "offset_in_wim=%"PRIu64", "
+ "uncompressed_size=%"PRIu64,
+ reshdr.size_in_wim,
+ reshdr.offset_in_wim,
+ reshdr.uncompressed_size);
+
+ put_wim_lookup_table_entry(table_buf_ptr++,
+ &reshdr,
+ part_number,
+ 1, zero_hash);
+ prev_res_offset_in_wim = lte->out_res_offset_in_wim;
+ }
+
+ }
+ wimlib_assert((u8*)table_buf_ptr - (u8*)table_buf == table_size);
/* Write the lookup table uncompressed. Although wimlib can handle a
* compressed lookup table, MS software cannot. */
WIM_RESHDR_FLAG_METADATA,
out_fd,
WIMLIB_COMPRESSION_TYPE_NONE,
- out_res_entry,
+ 0,
+ out_reshdr,
NULL,
write_resource_flags);
FREE(table_buf);
+ DEBUG("ret=%d", ret);
return ret;
}
-static int
-append_lookup_table_entry(struct wim_lookup_table_entry *lte, void *_list)
-{
- /* Lookup table entries with 'out_refcnt' == 0 correspond to streams not
- * written and not present in the resulting WIM file, and should not be
- * included in the lookup table.
- *
- * Lookup table entries marked as filtered (EXTERNAL_WIM) with
- * 'out_refcnt != 0' were referenced as part of the logical write but
- * correspond to streams that were not in fact written, and should not
- * be included in the lookup table.
- *
- * Lookup table entries marked as filtered (SAME_WIM) with 'out_refcnt
- * != 0' were referenced as part of the logical write but correspond to
- * streams that were not in fact written, but nevertheless were already
- * present in the WIM being overwritten in-place. These entries must be
- * included in the lookup table, and the resource information to write
- * needs to be copied from the resource information read originally.
- */
- if (lte->out_refcnt != 0 && !(lte->filtered & FILTERED_EXTERNAL_WIM)) {
- if (lte->filtered & FILTERED_SAME_WIM) {
- copy_resource_entry(<e->output_resource_entry,
- <e->resource_entry);
- }
- list_add_tail(<e->lookup_table_list, (struct list_head*)_list);
- }
- return 0;
-}
-
-int
-write_wim_lookup_table(WIMStruct *wim, int image, int write_flags,
- struct resource_entry *out_res_entry,
- struct list_head *stream_list_override)
-{
- int write_resource_flags;
- struct list_head _stream_list;
- struct list_head *stream_list;
-
- if (stream_list_override) {
- stream_list = stream_list_override;
- } else {
- stream_list = &_stream_list;
- INIT_LIST_HEAD(stream_list);
- }
-
- if (!(write_flags & WIMLIB_WRITE_FLAG_NO_METADATA)) {
- int start_image;
- int end_image;
-
- if (image == WIMLIB_ALL_IMAGES) {
- start_image = 1;
- end_image = wim->hdr.image_count;
- } else {
- start_image = image;
- end_image = image;
- }
-
- /* Push metadata resource lookup table entries onto the front of
- * the list in reverse order, so that they're written in order.
- */
- for (int i = end_image; i >= start_image; i--) {
- struct wim_lookup_table_entry *metadata_lte;
-
- metadata_lte = wim->image_metadata[i - 1]->metadata_lte;
- metadata_lte->out_refcnt = 1;
- metadata_lte->part_number = wim->hdr.part_number;
- metadata_lte->output_resource_entry.flags |= WIM_RESHDR_FLAG_METADATA;
-
- list_add(&metadata_lte->lookup_table_list, stream_list);
- }
- }
-
- /* Append additional lookup table entries that need to be written, with
- * some special handling for streams that have been marked as filtered.
- */
- if (!stream_list_override) {
- for_lookup_table_entry(wim->lookup_table,
- append_lookup_table_entry, stream_list);
- }
-
- write_resource_flags = 0;
- if (write_flags & WIMLIB_WRITE_FLAG_PIPABLE)
- write_resource_flags |= WIMLIB_WRITE_RESOURCE_FLAG_PIPABLE;
- return write_wim_lookup_table_from_stream_list(stream_list,
- &wim->out_fd,
- out_res_entry,
- write_resource_flags);
-}
-
-
int
lte_zero_real_refcnt(struct wim_lookup_table_entry *lte, void *_ignore)
{
void
print_lookup_table_entry(const struct wim_lookup_table_entry *lte, FILE *out)
{
- if (!lte) {
+ if (lte == NULL) {
tputc(T('\n'), out);
return;
}
- tfprintf(out, T("Offset = %"PRIu64" bytes\n"),
- lte->resource_entry.offset);
- tfprintf(out, T("Size = %"PRIu64" bytes\n"),
- (u64)lte->resource_entry.size);
- tfprintf(out, T("Original size = %"PRIu64" bytes\n"),
- lte->resource_entry.original_size);
+ tprintf(T("Uncompressed size = %"PRIu64" bytes\n"),
+ lte->size);
+ if (lte->flags & WIM_RESHDR_FLAG_PACKED_STREAMS) {
+ tprintf(T("Offset = %"PRIu64" bytes\n"),
+ lte->offset_in_res);
+
+ tprintf(T("Raw uncompressed size = %"PRIu64" bytes\n"),
+ lte->rspec->uncompressed_size);
- tfprintf(out, T("Part Number = %hu\n"), lte->part_number);
- tfprintf(out, T("Reference Count = %u\n"), lte->refcnt);
+ tprintf(T("Raw compressed size = %"PRIu64" bytes\n"),
+ lte->rspec->size_in_wim);
+
+ tprintf(T("Raw offset = %"PRIu64" bytes\n"),
+ lte->rspec->offset_in_wim);
+ } else if (lte->resource_location == RESOURCE_IN_WIM) {
+ tprintf(T("Compressed size = %"PRIu64" bytes\n"),
+ lte->rspec->size_in_wim);
+
+ tprintf(T("Offset = %"PRIu64" bytes\n"),
+ lte->rspec->offset_in_wim);
+ }
+
+ tfprintf(out, T("Reference Count = %u\n"), lte->refcnt);
if (lte->unhashed) {
tfprintf(out, T("(Unhashed: inode %p, stream_id = %u)\n"),
lte->back_inode, lte->back_stream_id);
} else {
- tfprintf(out, T("Hash = 0x"));
+ tfprintf(out, T("Hash = 0x"));
print_hash(lte->hash, out);
tputc(T('\n'), out);
}
- tfprintf(out, T("Flags = "));
- u8 flags = lte->resource_entry.flags;
+ tfprintf(out, T("Flags = "));
+ u8 flags = lte->flags;
if (flags & WIM_RESHDR_FLAG_COMPRESSED)
tfputs(T("WIM_RESHDR_FLAG_COMPRESSED, "), out);
if (flags & WIM_RESHDR_FLAG_FREE)
tfputs(T("WIM_RESHDR_FLAG_METADATA, "), out);
if (flags & WIM_RESHDR_FLAG_SPANNED)
tfputs(T("WIM_RESHDR_FLAG_SPANNED, "), out);
+ if (flags & WIM_RESHDR_FLAG_PACKED_STREAMS)
+ tfputs(T("WIM_RESHDR_FLAG_PACKED_STREAMS, "), out);
tputc(T('\n'), out);
switch (lte->resource_location) {
case RESOURCE_IN_WIM:
- if (lte->wim->filename) {
- tfprintf(out, T("WIM file = `%"TS"'\n"),
- lte->wim->filename);
+ if (lte->rspec->wim->filename) {
+ tfprintf(out, T("WIM file = `%"TS"'\n"),
+ lte->rspec->wim->filename);
}
break;
#ifdef __WIN32__
case RESOURCE_WIN32_ENCRYPTED:
#endif
case RESOURCE_IN_FILE_ON_DISK:
- tfprintf(out, T("File on Disk = `%"TS"'\n"),
+ tfprintf(out, T("File on Disk = `%"TS"'\n"),
lte->file_on_disk);
break;
#ifdef WITH_FUSE
case RESOURCE_IN_STAGING_FILE:
- tfprintf(out, T("Staging File = `%"TS"'\n"),
+ tfprintf(out, T("Staging File = `%"TS"'\n"),
lte->staging_file_name);
break;
#endif
lte_to_wimlib_resource_entry(const struct wim_lookup_table_entry *lte,
struct wimlib_resource_entry *wentry)
{
- wentry->uncompressed_size = lte->resource_entry.original_size;
- wentry->compressed_size = lte->resource_entry.size;
- wentry->offset = lte->resource_entry.offset;
+ memset(wentry, 0, sizeof(*wentry));
+
+ wentry->uncompressed_size = lte->size;
+ if (lte->resource_location == RESOURCE_IN_WIM) {
+ wentry->part_number = lte->rspec->wim->hdr.part_number;
+ if (lte->flags & WIM_RESHDR_FLAG_PACKED_STREAMS) {
+ wentry->compressed_size = 0;
+ wentry->offset = lte->offset_in_res;
+ } else {
+ wentry->compressed_size = lte->rspec->size_in_wim;
+ wentry->offset = lte->rspec->offset_in_wim;
+ }
+ wentry->raw_resource_offset_in_wim = lte->rspec->offset_in_wim;
+ /*wentry->raw_resource_uncompressed_size = lte->rspec->uncompressed_size;*/
+ wentry->raw_resource_compressed_size = lte->rspec->size_in_wim;
+ }
copy_hash(wentry->sha1_hash, lte->hash);
- wentry->part_number = lte->part_number;
wentry->reference_count = lte->refcnt;
- wentry->is_compressed = (lte->resource_entry.flags & WIM_RESHDR_FLAG_COMPRESSED) != 0;
- wentry->is_metadata = (lte->resource_entry.flags & WIM_RESHDR_FLAG_METADATA) != 0;
- wentry->is_free = (lte->resource_entry.flags & WIM_RESHDR_FLAG_FREE) != 0;
- wentry->is_spanned = (lte->resource_entry.flags & WIM_RESHDR_FLAG_SPANNED) != 0;
+ wentry->is_compressed = (lte->flags & WIM_RESHDR_FLAG_COMPRESSED) != 0;
+ wentry->is_metadata = (lte->flags & WIM_RESHDR_FLAG_METADATA) != 0;
+ wentry->is_free = (lte->flags & WIM_RESHDR_FLAG_FREE) != 0;
+ wentry->is_spanned = (lte->flags & WIM_RESHDR_FLAG_SPANNED) != 0;
+ wentry->packed = (lte->flags & WIM_RESHDR_FLAG_PACKED_STREAMS) != 0;
}
struct iterate_lte_context {
}
}
- dentry = get_dentry(wim, path);
+ dentry = get_dentry(wim, path, WIMLIB_CASE_SENSITIVE);
if (p)
*p = T(':');
if (!dentry)
return -ENOENT;
}
} else {
- lte = inode->i_lte;
- stream_idx = 0;
+ lte = inode_unnamed_stream_resolved(inode, &stream_idx);
}
out:
if (dentry_ret)
}
struct wim_lookup_table_entry *
-inode_unnamed_lte_resolved(const struct wim_inode *inode)
+inode_unnamed_stream_resolved(const struct wim_inode *inode, u16 *stream_idx_ret)
{
wimlib_assert(inode->i_resolved);
for (unsigned i = 0; i <= inode->i_num_ads; i++) {
if (inode_stream_name_nbytes(inode, i) == 0 &&
!is_zero_hash(inode_stream_hash_resolved(inode, i)))
{
+ *stream_idx_ret = i;
return inode_stream_lte_resolved(inode, i);
}
}
+ *stream_idx_ret = 0;
return NULL;
}
+struct wim_lookup_table_entry *
+inode_unnamed_lte_resolved(const struct wim_inode *inode)
+{
+ u16 stream_idx;
+ return inode_unnamed_stream_resolved(inode, &stream_idx);
+}
+
struct wim_lookup_table_entry *
inode_unnamed_lte_unresolved(const struct wim_inode *inode,
const struct wim_lookup_table *table)
return inode_unnamed_lte_unresolved(inode, table);
}
+/* Returns the SHA1 message digest of the unnamed data stream of a WIM inode, or
+ * 'zero_hash' if the unnamed data stream is missing has all zeroes in its SHA1
+ * message digest field. */
const u8 *
inode_unnamed_stream_hash(const struct wim_inode *inode)
{
return hash;
}
}
- return NULL;
-}
-
-
-static int
-lte_add_stream_size(struct wim_lookup_table_entry *lte, void *total_bytes_p)
-{
- *(u64*)total_bytes_p += lte->resource_entry.size;
- return 0;
-}
-
-u64
-lookup_table_total_stream_size(struct wim_lookup_table *table)
-{
- u64 total_size = 0;
- for_lookup_table_entry(table, lte_add_stream_size, &total_size);
- return total_size;
+ return zero_hash;
}
struct wim_lookup_table_entry **
* the SHA1 has been calculated. */
back_ptr = retrieve_lte_pointer(lte);
- ret = sha1_resource(lte);
+ ret = sha1_stream(lte);
if (ret)
return ret;
list_del(<e->unhashed_list);
if (duplicate_lte) {
/* We have a duplicate stream. Transfer the reference counts
- * from this stream to the duplicate, update the reference to
+ * from this stream to the duplicate and update the reference to
* this stream (in an inode or ads_entry) to point to the
- * duplicate, then free this stream. */
+ * duplicate. The caller is responsible for freeing @lte if
+ * needed. */
wimlib_assert(!(duplicate_lte->unhashed));
+ wimlib_assert(duplicate_lte->size == lte->size);
duplicate_lte->refcnt += lte->refcnt;
- duplicate_lte->out_refcnt += lte->out_refcnt;
+ lte->refcnt = 0;
*back_ptr = duplicate_lte;
- free_lookup_table_entry(lte);
lte = duplicate_lte;
} else {
- /* No duplicate stream, so we need to insert
- * this stream into the lookup table and treat
- * it as a hashed stream. */
+ /* No duplicate stream, so we need to insert this stream into
+ * the lookup table and treat it as a hashed stream. */
lookup_table_insert(lookup_table, lte);
lte->unhashed = 0;
}
- if (lte_ret)
- *lte_ret = lte;
+ *lte_ret = lte;
return 0;
}
return 0; /* Resource already present. */
lte = clone_lookup_table_entry(lte);
- if (!lte)
+ if (lte == NULL)
return WIMLIB_ERR_NOMEM;
lte->out_refcnt = 1;
lookup_table_insert(lookup_table, lte);
git://wimlib.net / wimlib / blobdiff