num_entries = w->hdr.lookup_table_res_entry.size /
sizeof(struct wim_lookup_table_entry_disk);
table = new_lookup_table(num_entries * 2 + 1);
- if (!table)
+ if (!table) {
+ ERROR("Failed to allocate stream hash table of size %zu",
+ num_entries * 2 + 1);
return WIMLIB_ERR_NOMEM;
+ }
w->current_image = 0;
offset = w->hdr.lookup_table_res_entry.offset;
cur_entry->refcnt = le32_to_cpu(disk_entry->refcnt);
copy_hash(cur_entry->hash, disk_entry->hash);
+ if (cur_entry->resource_entry.flags & WIM_RESHDR_FLAG_COMPRESSED)
+ cur_entry->compression_type = w->compression_type;
+ else
+ BUILD_BUG_ON(WIMLIB_COMPRESSION_TYPE_NONE != 0);
+
if (cur_entry->part_number != w->hdr.part_number) {
- ERROR("A lookup table entry in part %hu of the WIM "
- "points to part %hu",
- w->hdr.part_number, cur_entry->part_number);
- ret = WIMLIB_ERR_INVALID_LOOKUP_TABLE_ENTRY;
- goto out_free_cur_entry;
+ WARNING("A lookup table entry in part %hu of the WIM "
+ "points to part %hu (ignoring it)",
+ w->hdr.part_number, cur_entry->part_number);
+ free_lookup_table_entry(cur_entry);
+ continue;
}
if (is_zero_hash(cur_entry->hash)) {
- ERROR("The WIM lookup table contains an entry with a "
- "SHA1 message digest of all 0's");
- ret = WIMLIB_ERR_INVALID_LOOKUP_TABLE_ENTRY;
- goto out_free_cur_entry;
+ 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))
{
- #ifdef ENABLE_ERROR_MESSAGES
- ERROR("Found uncompressed resource with original size "
- "not the same as compressed size");
- ERROR("The lookup table entry for the resource is as follows:");
- print_lookup_table_entry(cur_entry, stderr);
- #endif
- ret = WIMLIB_ERR_INVALID_LOOKUP_TABLE_ENTRY;
- goto out_free_cur_entry;
+ 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 (cur_entry->resource_entry.flags & WIM_RESHDR_FLAG_METADATA) {
/* Lookup table entry for a metadata resource */
if (cur_entry->refcnt != 1) {
- #ifdef ENABLE_ERROR_MESSAGES
- ERROR("Found metadata resource with refcnt != 1:");
- print_lookup_table_entry(cur_entry, stderr);
- #endif
+ 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;
}
if (w->hdr.part_number != 1) {
- ERROR("Found a metadata resource in a "
- "non-first part of the split WIM!");
- ret = WIMLIB_ERR_INVALID_LOOKUP_TABLE_ENTRY;
- goto out_free_cur_entry;
+ WARNING("Ignoring metadata resource found in a "
+ "non-first part of the split WIM");
+ free_lookup_table_entry(cur_entry);
+ continue;
}
if (w->current_image == w->hdr.image_count) {
- ERROR("The WIM header says there are %u images "
- "in the WIM, but we found more metadata "
- "resources than this", w->hdr.image_count);
- ret = WIMLIB_ERR_IMAGE_COUNT;
- goto out_free_cur_entry;
+ WARNING("The WIM header says there are %u images "
+ "in the WIM, but we found more metadata "
+ "resources than this (ignoring the extra)",
+ w->hdr.image_count);
+ free_lookup_table_entry(cur_entry);
+ continue;
}
/* Notice very carefully: We are assigning the metadata
* metadata resource */
duplicate_entry = __lookup_resource(table, cur_entry->hash);
if (duplicate_entry) {
- #ifdef ENABLE_ERROR_MESSAGES
- ERROR("The WIM lookup table contains two entries with the "
- "same SHA1 message digest!");
- ERROR("The first entry is:");
- print_lookup_table_entry(duplicate_entry, stderr);
- ERROR("The second entry is:");
- print_lookup_table_entry(cur_entry, stderr);
- #endif
- ret = WIMLIB_ERR_INVALID_LOOKUP_TABLE_ENTRY;
- goto out_free_cur_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);
}
- lookup_table_insert(table, cur_entry);
}
}
- if (w->hdr.part_number == 1 && w->current_image != w->hdr.image_count)
- {
- ERROR("The WIM header says there are %u images "
- "in the WIM, but we only found %d metadata "
- "resources!", w->hdr.image_count, w->current_image);
- ret = WIMLIB_ERR_IMAGE_COUNT;
- goto out_free_lookup_table;
+ if (w->hdr.part_number == 1 && w->current_image != w->hdr.image_count) {
+ WARNING("The header of \"%"TS"\" says there are %u images in\n"
+ " the WIM, but we only found %d metadata resources! Acting as if\n"
+ " the header specified only %d images instead.",
+ w->filename, w->hdr.image_count,
+ w->current_image, w->current_image);
+ for (int i = w->current_image; i < w->hdr.image_count; i++)
+ put_image_metadata(w->image_metadata[i], NULL);
+ w->hdr.image_count = w->current_image;
}
DEBUG("Done reading lookup table.");
w->lookup_table = table;
tputc(T('\n'), out);
}
+void
+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;
+ 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;
+}
+
+struct iterate_lte_context {
+ wimlib_iterate_lookup_table_callback_t cb;
+ void *user_ctx;
+};
+
+static int
+do_iterate_lte(struct wim_lookup_table_entry *lte, void *_ctx)
+{
+ struct iterate_lte_context *ctx = _ctx;
+ struct wimlib_resource_entry entry;
+
+ lte_to_wimlib_resource_entry(lte, &entry);
+ return (*ctx->cb)(&entry, ctx->user_ctx);
+}
+
+WIMLIBAPI int
+wimlib_iterate_lookup_table(WIMStruct *wim, int flags,
+ wimlib_iterate_lookup_table_callback_t cb,
+ void *user_ctx)
+{
+ struct iterate_lte_context ctx = {
+ .cb = cb,
+ .user_ctx = user_ctx,
+ };
+ if (wim->hdr.part_number == 1) {
+ int ret;
+ for (int i = 0; i < wim->hdr.image_count; i++) {
+ ret = do_iterate_lte(wim->image_metadata[i]->metadata_lte,
+ &ctx);
+ if (ret)
+ return ret;
+ }
+ }
+ return for_lookup_table_entry(wim->lookup_table, do_iterate_lte, &ctx);
+}
+
static int
do_print_lookup_table_entry(struct wim_lookup_table_entry *lte, void *fp)
{
}
/*
- * Prints the lookup table of a WIM file.
+ * Deprecated
*/
WIMLIBAPI void
-wimlib_print_lookup_table(WIMStruct *w)
+wimlib_print_lookup_table(WIMStruct *wim)
{
- for_lookup_table_entry(w->lookup_table,
+ for (int i = 0; i < wim->hdr.image_count; i++)
+ print_lookup_table_entry(wim->image_metadata[i]->metadata_lte, stdout);
+ for_lookup_table_entry(wim->lookup_table,
do_print_lookup_table_entry,
stdout);
}
inode = dentry->d_inode;
- wimlib_assert(inode->i_resolved);
+ if (!inode->i_resolved)
+ if (inode_resolve_ltes(inode, w->lookup_table))
+ return -EIO;
if (!(lookup_flags & LOOKUP_FLAG_DIRECTORY_OK)
&& inode_is_directory(inode))
}
#endif
-/*
- * XXX Probably should store the compression type directly in the lookup table
- * entry
- */
-int
-wim_resource_compression_type(const struct wim_lookup_table_entry *lte)
-{
- if (!(lte->resource_entry.flags & WIM_RESHDR_FLAG_COMPRESSED)
- || lte->resource_location != RESOURCE_IN_WIM)
- return WIMLIB_COMPRESSION_TYPE_NONE;
- return wimlib_get_compression_type(lte->wim);
-}
-
/* Resolve an inode's lookup table entries
*
* This replaces the SHA1 hash fields (which are used to lookup an entry in the
* This function always succeeds; unresolved lookup table entries are given a
* NULL pointer.
*/
-void
+int
inode_resolve_ltes(struct wim_inode *inode, struct wim_lookup_table *table)
{
+ const u8 *hash;
if (!inode->i_resolved) {
- struct wim_lookup_table_entry *lte;
+ struct wim_lookup_table_entry *lte, *ads_lte;
+
/* Resolve the default file stream */
- lte = __lookup_resource(table, inode->i_hash);
- inode->i_lte = lte;
- inode->i_resolved = 1;
+ lte = NULL;
+ hash = inode->i_hash;
+ if (!is_zero_hash(hash)) {
+ lte = __lookup_resource(table, hash);
+ if (unlikely(!lte))
+ goto resource_not_found;
+ }
/* Resolve the alternate data streams */
+ struct wim_lookup_table_entry *ads_ltes[inode->i_num_ads];
for (u16 i = 0; i < inode->i_num_ads; i++) {
- struct wim_ads_entry *cur_entry = &inode->i_ads_entries[i];
- lte = __lookup_resource(table, cur_entry->hash);
- cur_entry->lte = lte;
+ struct wim_ads_entry *cur_entry;
+
+ ads_lte = NULL;
+ cur_entry = &inode->i_ads_entries[i];
+ hash = cur_entry->hash;
+ if (!is_zero_hash(hash)) {
+ ads_lte = __lookup_resource(table, hash);
+ if (unlikely(!ads_lte))
+ goto resource_not_found;
+ }
+ ads_ltes[i] = ads_lte;
}
+ inode->i_lte = lte;
+ for (u16 i = 0; i < inode->i_num_ads; i++)
+ inode->i_ads_entries[i].lte = ads_ltes[i];
+ inode->i_resolved = 1;
}
+ return 0;
+resource_not_found:
+ if (wimlib_print_errors) {
+ ERROR("\"%"TS"\": resource not found", inode_first_full_path(inode));
+ tfprintf(stderr, T(" SHA-1 message digest of missing resource:\n "));
+ print_hash(hash, stderr);
+ tputc(T('\n'), stderr);
+ }
+ return WIMLIB_ERR_RESOURCE_NOT_FOUND;
}
void
*lte_ret = lte;
return 0;
}
-
git://wimlib.net / wimlib / blobdiff