X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=src%2Fextract.c;h=f59cffb55347acc014da0feb0aad58f42d2150b8;hp=c794620d590c170c222d79fe233f8dd7e118140c;hb=5c135518e2911d965834f21e16b5024b6b77cb14;hpb=aac0f095b5ed1273f91d87009f3b551eedcee085 diff --git a/src/extract.c b/src/extract.c index c794620d..f59cffb5 100644 --- a/src/extract.c +++ b/src/extract.c @@ -6,7 +6,7 @@ */ /* - * Copyright (C) 2012, 2013, 2014, 2015 Eric Biggers + * Copyright (C) 2012-2017 Eric Biggers * * This file is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free @@ -28,7 +28,7 @@ * wimlib_extract_pathlist(). Internally, all end up calling * do_wimlib_extract_paths() and extract_trees(). * - * Although wimlib supports multiple extraction modes/backends (NTFS-3g, UNIX, + * Although wimlib supports multiple extraction modes/backends (NTFS-3G, UNIX, * Win32), this file does not itself have code to extract files or directories * to any specific target; instead, it handles generic functionality and relies * on lower-level callback functions declared in `struct apply_operations' to do @@ -41,6 +41,7 @@ #include #include +#include #include #include @@ -52,15 +53,17 @@ #include "wimlib/endianness.h" #include "wimlib/error.h" #include "wimlib/metadata.h" +#include "wimlib/object_id.h" #include "wimlib/pathlist.h" #include "wimlib/paths.h" +#include "wimlib/pattern.h" #include "wimlib/reparse.h" #include "wimlib/resource.h" #include "wimlib/security.h" #include "wimlib/unix_data.h" -#include "wimlib/wildcard.h" #include "wimlib/wim.h" #include "wimlib/win32.h" /* for realpath() equivalent */ +#include "wimlib/xattr.h" #include "wimlib/xml.h" #define WIMLIB_EXTRACT_FLAG_FROM_PIPE 0x80000000 @@ -84,7 +87,12 @@ WIMLIB_EXTRACT_FLAG_STRICT_GLOB | \ WIMLIB_EXTRACT_FLAG_NO_ATTRIBUTES | \ WIMLIB_EXTRACT_FLAG_NO_PRESERVE_DIR_STRUCTURE | \ - WIMLIB_EXTRACT_FLAG_WIMBOOT) + WIMLIB_EXTRACT_FLAG_WIMBOOT | \ + WIMLIB_EXTRACT_FLAG_COMPACT_XPRESS4K | \ + WIMLIB_EXTRACT_FLAG_COMPACT_XPRESS8K | \ + WIMLIB_EXTRACT_FLAG_COMPACT_XPRESS16K | \ + WIMLIB_EXTRACT_FLAG_COMPACT_LZX \ + ) /* Send WIMLIB_PROGRESS_MSG_EXTRACT_FILE_STRUCTURE or * WIMLIB_PROGRESS_MSG_EXTRACT_METADATA. */ @@ -134,6 +142,70 @@ end_file_metadata_phase(struct apply_ctx *ctx) return end_file_phase(ctx, WIMLIB_PROGRESS_MSG_EXTRACT_METADATA); } +/* Are all bytes in the specified buffer zero? */ +static bool +is_all_zeroes(const u8 *p, const size_t size) +{ + const u8 * const end = p + size; + + for (; (uintptr_t)p % WORDBYTES && p != end; p++) + if (*p) + return false; + + for (; end - p >= WORDBYTES; p += WORDBYTES) + if (*(const machine_word_t *)p) + return false; + + for (; p != end; p++) + if (*p) + return false; + + return true; +} + +/* + * Sparse regions should be detected at the granularity of the filesystem block + * size. For now just assume 4096 bytes, which is the default block size on + * NTFS and most Linux filesystems. + */ +#define SPARSE_UNIT 4096 + +/* + * Detect whether the specified buffer begins with a region of all zero bytes. + * Return %true if a zero region was found or %false if a nonzero region was + * found, and sets *len_ret to the length of the region. This operates at a + * granularity of SPARSE_UNIT bytes, meaning that to extend a zero region, there + * must be SPARSE_UNIT zero bytes with no interruption, but to extend a nonzero + * region, just one nonzero byte in the next SPARSE_UNIT bytes is sufficient. + * + * Note: besides compression, the WIM format doesn't yet have a way to + * efficiently represent zero regions, so that's why we need to detect them + * ourselves. Things will still fall apart badly on extremely large sparse + * files, but this is a start... + */ +bool +detect_sparse_region(const void *data, size_t size, size_t *len_ret) +{ + const void *p = data; + const void * const end = data + size; + size_t len = 0; + bool zeroes = false; + + while (p != end) { + size_t n = min(end - p, SPARSE_UNIT); + bool z = is_all_zeroes(p, n); + + if (len != 0 && z != zeroes) + break; + zeroes = z; + len += n; + p += n; + } + + *len_ret = len; + return zeroes; +} + #define PWM_FOUND_WIM_HDR (-1) /* Read the header for a blob in a pipable WIM. If @pwm_hdr_ret is not NULL, @@ -254,6 +326,55 @@ read_blobs_from_pipe(struct apply_ctx *ctx, const struct read_blob_callbacks *cb return 0; } +static int +handle_pwm_metadata_resource(WIMStruct *pwm, int image, bool is_needed) +{ + struct blob_descriptor *blob; + struct wim_reshdr reshdr; + struct wim_resource_descriptor *rdesc; + int ret; + + ret = WIMLIB_ERR_NOMEM; + blob = new_blob_descriptor(); + if (!blob) + goto out; + + ret = read_pwm_blob_header(pwm, blob->hash, &reshdr, NULL); + if (ret) + goto out; + + ret = WIMLIB_ERR_INVALID_PIPABLE_WIM; + if (!(reshdr.flags & WIM_RESHDR_FLAG_METADATA)) { + ERROR("Expected metadata resource, but found non-metadata " + "resource"); + goto out; + } + + ret = WIMLIB_ERR_NOMEM; + rdesc = MALLOC(sizeof(*rdesc)); + if (!rdesc) + goto out; + + wim_reshdr_to_desc_and_blob(&reshdr, pwm, rdesc, blob); + pwm->refcnt++; + + ret = WIMLIB_ERR_NOMEM; + pwm->image_metadata[image - 1] = new_unloaded_image_metadata(blob); + if (!pwm->image_metadata[image - 1]) + goto out; + blob = NULL; + + /* If the metadata resource is for the image being extracted, then parse + * it and save the metadata in memory. Otherwise, skip over it. */ + if (is_needed) + ret = select_wim_image(pwm, image); + else + ret = skip_wim_resource(rdesc); +out: + free_blob_descriptor(blob); + return ret; +} + /* Creates a temporary file opened for writing. The open file descriptor is * returned in @fd_ret and its name is returned in @name_ret (dynamically * allocated). */ @@ -261,27 +382,33 @@ static int create_temporary_file(struct filedes *fd_ret, tchar **name_ret) { tchar *name; - int open_flags; int raw_fd; +#ifdef __WIN32__ retry: - name = ttempnam(NULL, T("wimlib")); + name = _wtempnam(NULL, L"wimlib"); if (!name) { ERROR_WITH_ERRNO("Failed to create temporary filename"); return WIMLIB_ERR_NOMEM; } - - open_flags = O_WRONLY | O_CREAT | O_EXCL | O_BINARY; -#ifdef __WIN32__ - open_flags |= _O_SHORT_LIVED; -#endif - raw_fd = topen(name, open_flags, 0600); + raw_fd = _wopen(name, O_WRONLY | O_CREAT | O_EXCL | O_BINARY | + _O_SHORT_LIVED, 0600); + if (raw_fd < 0 && errno == EEXIST) { + FREE(name); + goto retry; + } +#else /* __WIN32__ */ + const char *tmpdir = getenv("TMPDIR"); + if (!tmpdir) + tmpdir = P_tmpdir; + name = MALLOC(strlen(tmpdir) + 1 + 6 + 6 + 1); + if (!name) + return WIMLIB_ERR_NOMEM; + sprintf(name, "%s/wimlibXXXXXX", tmpdir); + raw_fd = mkstemp(name); +#endif /* !__WIN32__ */ if (raw_fd < 0) { - if (errno == EEXIST) { - FREE(name); - goto retry; - } ERROR_WITH_ERRNO("Failed to create temporary file " "\"%"TS"\"", name); FREE(name); @@ -294,13 +421,10 @@ retry: } static int -begin_extract_blob_wrapper(struct blob_descriptor *blob, void *_ctx) +begin_extract_blob(struct blob_descriptor *blob, void *_ctx) { struct apply_ctx *ctx = _ctx; - ctx->cur_blob = blob; - ctx->cur_blob_offset = 0; - if (unlikely(blob->out_refcnt > MAX_OPEN_FILES)) return create_temporary_file(&ctx->tmpfile_fd, &ctx->tmpfile_name); @@ -308,29 +432,29 @@ begin_extract_blob_wrapper(struct blob_descriptor *blob, void *_ctx) } static int -extract_chunk_wrapper(const void *chunk, size_t size, void *_ctx) +extract_chunk(const struct blob_descriptor *blob, u64 offset, + const void *chunk, size_t size, void *_ctx) { struct apply_ctx *ctx = _ctx; union wimlib_progress_info *progress = &ctx->progress; + bool last = (offset + size == blob->size); int ret; - ctx->cur_blob_offset += size; - if (likely(ctx->supported_features.hard_links)) { progress->extract.completed_bytes += - (u64)size * ctx->cur_blob->out_refcnt; - if (ctx->cur_blob_offset == ctx->cur_blob->size) - progress->extract.completed_streams += ctx->cur_blob->out_refcnt; + (u64)size * blob->out_refcnt; + if (last) + progress->extract.completed_streams += blob->out_refcnt; } else { const struct blob_extraction_target *targets = - blob_extraction_targets(ctx->cur_blob); - for (u32 i = 0; i < ctx->cur_blob->out_refcnt; i++) { + blob_extraction_targets(blob); + for (u32 i = 0; i < blob->out_refcnt; i++) { const struct wim_inode *inode = targets[i].inode; const struct wim_dentry *dentry; inode_for_each_extraction_alias(dentry, inode) { progress->extract.completed_bytes += size; - if (ctx->cur_blob_offset == ctx->cur_blob->size) + if (last) progress->extract.completed_streams++; } } @@ -341,30 +465,9 @@ extract_chunk_wrapper(const void *chunk, size_t size, void *_ctx) if (ret) return ret; - if (progress->extract.completed_bytes >= - progress->extract.total_bytes) - { - ctx->next_progress = UINT64_MAX; - } else { - /* Send new message as soon as another 1/128 of the - * total has been extracted. (Arbitrary number.) */ - ctx->next_progress = - progress->extract.completed_bytes + - progress->extract.total_bytes / 128; - - /* ... Unless that would be more than 5000000 bytes, in - * which case send the next after the next 5000000 - * bytes. (Another arbitrary number.) */ - if (progress->extract.completed_bytes + 5000000 < - ctx->next_progress) - ctx->next_progress = - progress->extract.completed_bytes + 5000000; - - /* ... But always send a message as soon as we're - * completely done. */ - if (progress->extract.total_bytes < ctx->next_progress) - ctx->next_progress = progress->extract.total_bytes; - } + set_next_progress(progress->extract.completed_bytes, + progress->extract.total_bytes, + &ctx->next_progress); } if (unlikely(filedes_valid(&ctx->tmpfile_fd))) { @@ -378,7 +481,7 @@ extract_chunk_wrapper(const void *chunk, size_t size, void *_ctx) return ret; } - return call_consume_chunk(chunk, size, ctx->saved_cbs); + return call_continue_blob(blob, offset, chunk, size, ctx->saved_cbs); } /* Copy the blob's data from the temporary file to each of its targets. @@ -409,7 +512,7 @@ extract_from_tmpfile(const tchar *tmpfile_name, } static int -end_extract_blob_wrapper(struct blob_descriptor *blob, int status, void *_ctx) +end_extract_blob(struct blob_descriptor *blob, int status, void *_ctx) { struct apply_ctx *ctx = _ctx; @@ -448,9 +551,9 @@ int extract_blob_list(struct apply_ctx *ctx, const struct read_blob_callbacks *cbs) { struct read_blob_callbacks wrapper_cbs = { - .begin_blob = begin_extract_blob_wrapper, - .consume_chunk = extract_chunk_wrapper, - .end_blob = end_extract_blob_wrapper, + .begin_blob = begin_extract_blob, + .continue_blob = extract_chunk, + .end_blob = end_extract_blob, .ctx = ctx, }; ctx->saved_cbs = cbs; @@ -522,14 +625,14 @@ remove_duplicate_trees(struct wim_dentry **trees, size_t num_trees) { size_t i, j = 0; for (i = 0; i < num_trees; i++) { - if (!trees[i]->tmp_flag) { + if (!trees[i]->d_tmp_flag) { /* Found distinct dentry. */ - trees[i]->tmp_flag = 1; + trees[i]->d_tmp_flag = 1; trees[j++] = trees[i]; } } for (i = 0; i < j; i++) - trees[i]->tmp_flag = 0; + trees[i]->d_tmp_flag = 0; return j; } @@ -543,23 +646,23 @@ remove_contained_trees(struct wim_dentry **trees, size_t num_trees) { size_t i, j = 0; for (i = 0; i < num_trees; i++) - trees[i]->tmp_flag = 1; + trees[i]->d_tmp_flag = 1; for (i = 0; i < num_trees; i++) { struct wim_dentry *d = trees[i]; while (!dentry_is_root(d)) { d = d->d_parent; - if (d->tmp_flag) + if (d->d_tmp_flag) goto tree_contained; } trees[j++] = trees[i]; continue; tree_contained: - trees[i]->tmp_flag = 0; + trees[i]->d_tmp_flag = 0; } for (i = 0; i < j; i++) - trees[i]->tmp_flag = 0; + trees[i]->d_tmp_flag = 0; return j; } @@ -580,8 +683,10 @@ dentry_reset_extraction_list_node(struct wim_dentry *dentry) static int dentry_delete_from_list(struct wim_dentry *dentry, void *_ignore) { - list_del(&dentry->d_extraction_list_node); - dentry_reset_extraction_list_node(dentry); + if (will_extract_dentry(dentry)) { + list_del(&dentry->d_extraction_list_node); + dentry_reset_extraction_list_node(dentry); + } return 0; } @@ -643,7 +748,7 @@ destroy_dentry_list(struct list_head *dentry_list) dentry_reset_extraction_list_node(dentry); inode->i_visited = 0; inode->i_can_externally_back = 0; - if ((void *)dentry->d_extraction_name != (void *)dentry->file_name) + if ((void *)dentry->d_extraction_name != (void *)dentry->d_name) FREE(dentry->d_extraction_name); dentry->d_extraction_name = NULL; dentry->d_extraction_name_nchars = 0; @@ -674,19 +779,20 @@ file_name_valid(utf16lechar *name, size_t num_chars, bool fix) if (num_chars == 0) return true; for (i = 0; i < num_chars; i++) { - switch (name[i]) { + switch (le16_to_cpu(name[i])) { #ifdef __WIN32__ - case cpu_to_le16('\\'): - case cpu_to_le16(':'): - case cpu_to_le16('*'): - case cpu_to_le16('?'): - case cpu_to_le16('"'): - case cpu_to_le16('<'): - case cpu_to_le16('>'): - case cpu_to_le16('|'): + case '\x01'...'\x1F': + case '\\': + case ':': + case '*': + case '?': + case '"': + case '<': + case '>': + case '|': #endif - case cpu_to_le16('/'): - case cpu_to_le16('\0'): + case '/': + case '\0': if (fix) name[i] = replacement_char; else @@ -694,16 +800,6 @@ file_name_valid(utf16lechar *name, size_t num_chars, bool fix) } } -#ifdef __WIN32__ - if (name[num_chars - 1] == cpu_to_le16(' ') || - name[num_chars - 1] == cpu_to_le16('.')) - { - if (fix) - name[num_chars - 1] = replacement_char; - else - return false; - } -#endif return true; } @@ -718,8 +814,8 @@ dentry_calculate_extraction_name(struct wim_dentry *dentry, #ifdef WITH_NTFS_3G if (ctx->extract_flags & WIMLIB_EXTRACT_FLAG_NTFS) { - dentry->d_extraction_name = dentry->file_name; - dentry->d_extraction_name_nchars = dentry->file_name_nbytes / + dentry->d_extraction_name = dentry->d_name; + dentry->d_extraction_name_nchars = dentry->d_name_nbytes / sizeof(utf16lechar); return 0; } @@ -727,9 +823,7 @@ dentry_calculate_extraction_name(struct wim_dentry *dentry, if (!ctx->supported_features.case_sensitive_filenames) { struct wim_dentry *other; - list_for_each_entry(other, &dentry->d_ci_conflict_list, - d_ci_conflict_list) - { + dentry_for_each_ci_match(other, dentry) { if (will_extract_dentry(other)) { if (ctx->extract_flags & WIMLIB_EXTRACT_FLAG_ALL_CASE_CONFLICTS) { @@ -752,12 +846,13 @@ dentry_calculate_extraction_name(struct wim_dentry *dentry, } } - if (file_name_valid(dentry->file_name, dentry->file_name_nbytes / 2, false)) { - ret = utf16le_get_tstr(dentry->file_name, - dentry->file_name_nbytes, + if (file_name_valid(dentry->d_name, dentry->d_name_nbytes / 2, false)) { + size_t nbytes = 0; + ret = utf16le_get_tstr(dentry->d_name, + dentry->d_name_nbytes, (const tchar **)&dentry->d_extraction_name, - &dentry->d_extraction_name_nchars); - dentry->d_extraction_name_nchars /= sizeof(tchar); + &nbytes); + dentry->d_extraction_name_nchars = nbytes / sizeof(tchar); return ret; } else { if (ctx->extract_flags & WIMLIB_EXTRACT_FLAG_REPLACE_INVALID_FILENAMES) @@ -777,16 +872,16 @@ dentry_calculate_extraction_name(struct wim_dentry *dentry, out_replace: { - utf16lechar utf16_name_copy[dentry->file_name_nbytes / 2]; + utf16lechar utf16_name_copy[dentry->d_name_nbytes / 2]; - memcpy(utf16_name_copy, dentry->file_name, dentry->file_name_nbytes); - file_name_valid(utf16_name_copy, dentry->file_name_nbytes / 2, true); + memcpy(utf16_name_copy, dentry->d_name, dentry->d_name_nbytes); + file_name_valid(utf16_name_copy, dentry->d_name_nbytes / 2, true); const tchar *tchar_name; size_t tchar_nchars; ret = utf16le_get_tstr(utf16_name_copy, - dentry->file_name_nbytes, + dentry->d_name_nbytes, &tchar_name, &tchar_nchars); if (ret) return ret; @@ -1000,10 +1095,11 @@ ref_stream_if_needed(struct wim_dentry *dentry, struct wim_inode *inode, * - file is a directory * - file is encrypted * - backend needs to create the file as UNIX symlink - * - backend will extract the stream as externally backed + * - backend will extract the stream as externally + * backed from the WIM archive itself */ - if (ctx->apply_ops->will_externally_back) { - int ret = (*ctx->apply_ops->will_externally_back)(dentry, ctx); + if (ctx->apply_ops->will_back_from_wim) { + int ret = (*ctx->apply_ops->will_back_from_wim)(dentry, ctx); if (ret > 0) /* Error? */ return ret; if (ret < 0) /* Won't externally back? */ @@ -1080,30 +1176,28 @@ static void dentry_list_build_inode_alias_lists(struct list_head *dentry_list) { struct wim_dentry *dentry; - struct wim_inode *inode; + + list_for_each_entry(dentry, dentry_list, d_extraction_list_node) + dentry->d_inode->i_first_extraction_alias = NULL; list_for_each_entry(dentry, dentry_list, d_extraction_list_node) { - inode = dentry->d_inode; - if (!inode->i_visited) - INIT_LIST_HEAD(&inode->i_extraction_aliases); - list_add_tail(&dentry->d_extraction_alias_node, - &inode->i_extraction_aliases); - inode->i_visited = 1; + dentry->d_next_extraction_alias = dentry->d_inode->i_first_extraction_alias; + dentry->d_inode->i_first_extraction_alias = dentry; } - list_for_each_entry(dentry, dentry_list, d_extraction_list_node) - dentry->d_inode->i_visited = 0; } static void inode_tally_features(const struct wim_inode *inode, struct wim_features *features) { - if (inode->i_attributes & FILE_ATTRIBUTE_ARCHIVE) - features->archive_files++; + if (inode->i_attributes & FILE_ATTRIBUTE_READONLY) + features->readonly_files++; if (inode->i_attributes & FILE_ATTRIBUTE_HIDDEN) features->hidden_files++; if (inode->i_attributes & FILE_ATTRIBUTE_SYSTEM) features->system_files++; + if (inode->i_attributes & FILE_ATTRIBUTE_ARCHIVE) + features->archive_files++; if (inode->i_attributes & FILE_ATTRIBUTE_COMPRESSED) features->compressed_files++; if (inode->i_attributes & FILE_ATTRIBUTE_ENCRYPTED) { @@ -1129,6 +1223,10 @@ inode_tally_features(const struct wim_inode *inode, features->security_descriptors++; if (inode_has_unix_data(inode)) features->unix_data++; + if (inode_has_object_id(inode)) + features->object_ids++; + if (inode_has_linux_xattrs(inode)) + features->linux_xattrs++; } /* Tally features necessary to extract a dentry and the corresponding inode. */ @@ -1181,9 +1279,11 @@ do_feature_check(const struct wim_features *required_features, /* File attributes. */ if (!(extract_flags & WIMLIB_EXTRACT_FLAG_NO_ATTRIBUTES)) { - /* Note: Don't bother the user about FILE_ATTRIBUTE_ARCHIVE. - * We're an archive program, so theoretically we can do what we - * want with it. */ + + if (required_features->readonly_files && + !supported_features->readonly_files) + WARNING("Ignoring FILE_ATTRIBUTE_READONLY of %lu files", + required_features->readonly_files); if (required_features->hidden_files && !supported_features->hidden_files) @@ -1195,6 +1295,10 @@ do_feature_check(const struct wim_features *required_features, WARNING("Ignoring FILE_ATTRIBUTE_SYSTEM of %lu files", required_features->system_files); + /* Note: Don't bother the user about FILE_ATTRIBUTE_ARCHIVE. + * We're an archive program, so theoretically we can do what we + * want with it. */ + if (required_features->compressed_files && !supported_features->compressed_files) WARNING("Ignoring FILE_ATTRIBUTE_COMPRESSED of %lu files", @@ -1260,19 +1364,37 @@ do_feature_check(const struct wim_features *required_features, WARNING("Ignoring Windows NT security descriptors of %lu files", required_features->security_descriptors); - /* UNIX data. */ - if ((extract_flags & WIMLIB_EXTRACT_FLAG_UNIX_DATA) && - required_features->unix_data && !supported_features->unix_data) + /* Standard UNIX metadata */ + if (required_features->unix_data && + (!supported_features->unix_data || + !(extract_flags & WIMLIB_EXTRACT_FLAG_UNIX_DATA))) { - ERROR("Extraction backend does not support UNIX data!"); - return WIMLIB_ERR_UNSUPPORTED; + if (extract_flags & WIMLIB_EXTRACT_FLAG_UNIX_DATA) { + ERROR("Requested UNIX metadata extraction, but " + "extraction backend does not support it!"); + return WIMLIB_ERR_UNSUPPORTED; + } + WARNING("Ignoring UNIX metadata (uid/gid/mode/rdev) of %lu files%"TS, + required_features->unix_data, + (supported_features->unix_data ? + T("\n (use --unix-data mode to extract these)") : T(""))); } - if (required_features->unix_data && - !(extract_flags & WIMLIB_EXTRACT_FLAG_UNIX_DATA)) + /* Linux-style extended attributes */ + if (required_features->linux_xattrs && + (!supported_features->linux_xattrs || + !(extract_flags & WIMLIB_EXTRACT_FLAG_UNIX_DATA))) { - WARNING("Ignoring UNIX metadata of %lu files", - required_features->unix_data); + WARNING("Ignoring Linux-style extended attributes of %lu files%"TS, + required_features->linux_xattrs, + (supported_features->linux_xattrs ? + T("\n (use --unix-data mode to extract these)") : T(""))); + } + + /* Object IDs. */ + if (required_features->object_ids && !supported_features->object_ids) { + WARNING("Ignoring object IDs of %lu files", + required_features->object_ids); } /* DOS Names. */ @@ -1411,12 +1533,12 @@ extract_trees(WIMStruct *wim, struct wim_dentry **trees, size_t num_trees, * subtract from this if hard links are * supported by the extraction mode.) */ ctx->progress.extract.total_bytes = - wim_info_get_image_total_bytes(wim->wim_info, - wim->current_image); + xml_get_image_total_bytes(wim->xml_info, + wim->current_image); if (ctx->supported_features.hard_links) { ctx->progress.extract.total_bytes -= - wim_info_get_image_hard_link_bytes(wim->wim_info, - wim->current_image); + xml_get_image_hard_link_bytes(wim->xml_info, + wim->current_image); } } @@ -1494,7 +1616,7 @@ check_extract_flags(const WIMStruct *wim, int *extract_flags_p) #ifndef WITH_NTFS_3G if (extract_flags & WIMLIB_EXTRACT_FLAG_NTFS) { - ERROR("wimlib was compiled without support for NTFS-3g, so\n" + ERROR("wimlib was compiled without support for NTFS-3G, so\n" " it cannot apply a WIM image directly to an NTFS volume."); return WIMLIB_ERR_UNSUPPORTED; } @@ -1510,6 +1632,34 @@ check_extract_flags(const WIMStruct *wim, int *extract_flags_p) #endif } + if (extract_flags & (WIMLIB_EXTRACT_FLAG_COMPACT_XPRESS4K | + WIMLIB_EXTRACT_FLAG_COMPACT_XPRESS8K | + WIMLIB_EXTRACT_FLAG_COMPACT_XPRESS16K | + WIMLIB_EXTRACT_FLAG_COMPACT_LZX)) + { + #ifdef __WIN32__ + int count = 0; + count += ((extract_flags & WIMLIB_EXTRACT_FLAG_COMPACT_XPRESS4K) != 0); + count += ((extract_flags & WIMLIB_EXTRACT_FLAG_COMPACT_XPRESS8K) != 0); + count += ((extract_flags & WIMLIB_EXTRACT_FLAG_COMPACT_XPRESS16K) != 0); + count += ((extract_flags & WIMLIB_EXTRACT_FLAG_COMPACT_LZX) != 0); + if (count != 1) { + ERROR("Only one compression format can be specified " + "for compact-mode extraction!"); + return WIMLIB_ERR_INVALID_PARAM; + } + if (extract_flags & WIMLIB_EXTRACT_FLAG_WIMBOOT) { + ERROR("Compact-mode extraction and WIMBoot-mode " + "extraction are mutually exclusive!"); + return WIMLIB_ERR_INVALID_PARAM; + } + #else + ERROR("Compact-mode extraction (System Compression) " + "is only supported on Windows!"); + return WIMLIB_ERR_UNSUPPORTED; + #endif + } + if ((extract_flags & (WIMLIB_EXTRACT_FLAG_RPFIX | WIMLIB_EXTRACT_FLAG_NORPFIX | @@ -1526,22 +1676,6 @@ check_extract_flags(const WIMStruct *wim, int *extract_flags_p) return 0; } -static u32 -get_wildcard_flags(int extract_flags) -{ - u32 wildcard_flags = 0; - - if (extract_flags & WIMLIB_EXTRACT_FLAG_STRICT_GLOB) - wildcard_flags |= WILDCARD_FLAG_ERROR_IF_NO_MATCH; - else - wildcard_flags |= WILDCARD_FLAG_WARN_IF_NO_MATCH; - - if (default_ignore_case) - wildcard_flags |= WILDCARD_FLAG_CASE_INSENSITIVE; - - return wildcard_flags; -} - struct append_dentry_ctx { struct wim_dentry **dentries; size_t num_dentries; @@ -1570,6 +1704,31 @@ append_dentry_cb(struct wim_dentry *dentry, void *_ctx) return 0; } +/* Append dentries matched by a path which can contain wildcard characters. */ +static int +append_matched_dentries(WIMStruct *wim, const tchar *orig_pattern, + int extract_flags, struct append_dentry_ctx *ctx) +{ + const size_t count_before = ctx->num_dentries; + tchar *pattern; + int ret; + + pattern = canonicalize_wim_path(orig_pattern); + if (!pattern) + return WIMLIB_ERR_NOMEM; + ret = expand_path_pattern(wim_get_current_root_dentry(wim), pattern, + append_dentry_cb, ctx); + FREE(pattern); + if (ret || ctx->num_dentries > count_before) + return ret; + if (extract_flags & WIMLIB_EXTRACT_FLAG_STRICT_GLOB) { + ERROR("No matches for path pattern \"%"TS"\"", orig_pattern); + return WIMLIB_ERR_PATH_DOES_NOT_EXIST; + } + WARNING("No matches for path pattern \"%"TS"\"", orig_pattern); + return 0; +} + static int do_wimlib_extract_paths(WIMStruct *wim, int image, const tchar *target, const tchar * const *paths, size_t num_paths, @@ -1612,20 +1771,10 @@ do_wimlib_extract_paths(WIMStruct *wim, int image, const tchar *target, .num_alloc_dentries = 0, }; - u32 wildcard_flags = get_wildcard_flags(extract_flags); - for (size_t i = 0; i < num_paths; i++) { - tchar *path = canonicalize_wim_path(paths[i]); - if (path == NULL) { - ret = WIMLIB_ERR_NOMEM; - trees = append_dentry_ctx.dentries; - goto out_free_trees; - } - ret = expand_wildcard(wim, path, - append_dentry_cb, - &append_dentry_ctx, - wildcard_flags); - FREE(path); + ret = append_matched_dentries(wim, paths[i], + extract_flags, + &append_dentry_ctx); if (ret) { trees = append_dentry_ctx.dentries; goto out_free_trees; @@ -1681,13 +1830,11 @@ extract_single_image(WIMStruct *wim, int image, } static const tchar * const filename_forbidden_chars = -T( #ifdef __WIN32__ -"<>:\"/\\|?*" +T("<>:\"/\\|?*"); #else -"/" +T("/"); #endif -); /* This function checks if it is okay to use a WIM image's name as a directory * name. */ @@ -1697,7 +1844,8 @@ image_name_ok_as_dir(const tchar *image_name) return image_name && *image_name && !tstrpbrk(image_name, filename_forbidden_chars) && tstrcmp(image_name, T(".")) && - tstrcmp(image_name, T("..")); + tstrcmp(image_name, T("..")) && + tstrlen(image_name) <= 128; } /* Extracts all images from the WIM to the directory @target, with the images @@ -1705,9 +1853,8 @@ image_name_ok_as_dir(const tchar *image_name) static int extract_all_images(WIMStruct *wim, const tchar *target, int extract_flags) { - size_t image_name_max_len = max(xml_get_max_image_name_len(wim), 20); size_t output_path_len = tstrlen(target); - tchar buf[output_path_len + 1 + image_name_max_len + 1]; + tchar buf[output_path_len + 1 + 128 + 1]; int ret; int image; const tchar *image_name; @@ -1863,7 +2010,7 @@ wimlib_extract_image_from_pipe_with_progress(int pipe_fd, if (ret) goto out_wimlib_free; - if (wim_info_get_num_images(pwm->wim_info) != pwm->hdr.image_count) { + if (xml_get_image_count(pwm->xml_info) != pwm->hdr.image_count) { ERROR("Image count in XML data is not the same as in WIM header."); ret = WIMLIB_ERR_IMAGE_COUNT; goto out_wimlib_free; @@ -1896,52 +2043,9 @@ wimlib_extract_image_from_pipe_with_progress(int pipe_fd, /* Load the needed metadata resource. */ for (i = 1; i <= pwm->hdr.image_count; i++) { - struct wim_image_metadata *imd; - struct wim_reshdr reshdr; - struct wim_resource_descriptor *metadata_rdesc; - - imd = pwm->image_metadata[i - 1]; - - ret = WIMLIB_ERR_NOMEM; - imd->metadata_blob = new_blob_descriptor(); - if (!imd->metadata_blob) - goto out_wimlib_free; - - imd->metadata_blob->is_metadata = 1; - - ret = read_pwm_blob_header(pwm, imd->metadata_blob->hash, - &reshdr, NULL); + ret = handle_pwm_metadata_resource(pwm, i, i == image); if (ret) goto out_wimlib_free; - - if (!(reshdr.flags & WIM_RESHDR_FLAG_METADATA)) { - ERROR("Expected metadata resource, but found " - "non-metadata resource"); - ret = WIMLIB_ERR_INVALID_PIPABLE_WIM; - goto out_wimlib_free; - } - - ret = WIMLIB_ERR_NOMEM; - metadata_rdesc = MALLOC(sizeof(struct wim_resource_descriptor)); - if (!metadata_rdesc) - goto out_wimlib_free; - wim_reshdr_to_desc_and_blob(&reshdr, pwm, metadata_rdesc, - imd->metadata_blob); - - if (i == image) { - /* Metadata resource is for the image being extracted. - * Parse it and save the metadata in memory. */ - ret = read_metadata_resource(imd); - if (ret) - goto out_wimlib_free; - imd->modified = 1; - } else { - /* Metadata resource is not for the image being - * extracted. Skip over it. */ - ret = skip_wim_resource(metadata_rdesc); - if (ret) - goto out_wimlib_free; - } } /* Extract the image. */ extract_flags |= WIMLIB_EXTRACT_FLAG_FROM_PIPE;