X-Git-Url: https://wimlib.net/git/?a=blobdiff_plain;f=src%2Fntfs-3g_capture.c;h=f9825f73946ca6c629690d587dc3d74c2af25a8e;hb=a5f60b5a884906945b841457874c83e609b016af;hp=842f539c6db2f65a546cc061daadadd785632004;hpb=a06ae552a9774672ceca5850cd861a67223137a0;p=wimlib diff --git a/src/ntfs-3g_capture.c b/src/ntfs-3g_capture.c index 842f539c..f9825f73 100644 --- a/src/ntfs-3g_capture.c +++ b/src/ntfs-3g_capture.c @@ -189,34 +189,33 @@ cmp_ntfs_locations(const struct ntfs_location *loc1, return cmp_u64(loc1->sort_key, loc2->sort_key); } +/* Read rptag and rpreserved from the NTFS inode and save them in the WIM inode. + */ static int -read_reparse_tag(ntfs_inode *ni, struct ntfs_location *loc, - u32 *reparse_tag_ret) +read_reparse_header(ntfs_inode *ni, struct wim_inode *inode) { - int ret; - le32 reparse_tag; + struct { + le32 rptag; + le16 rpdatalen; + le16 rpreserved; + } hdr; + s64 res; ntfs_attr *na; - na = open_ntfs_attr(ni, loc); - if (!na) { - ret = WIMLIB_ERR_NTFS_3G; - goto out; - } + na = ntfs_attr_open(ni, AT_REPARSE_POINT, AT_UNNAMED, 0); + if (!na) + return WIMLIB_ERR_NTFS_3G; + + res = ntfs_attr_pread(na, 0, sizeof(hdr), &hdr); - if (ntfs_attr_pread(na, 0, sizeof(reparse_tag), - &reparse_tag) != sizeof(reparse_tag)) - { - ERROR_WITH_ERRNO("Error reading reparse data"); - ret = WIMLIB_ERR_NTFS_3G; - goto out_close_ntfs_attr; - } - *reparse_tag_ret = le32_to_cpu(reparse_tag); - ret = 0; -out_close_ntfs_attr: ntfs_attr_close(na); -out: - return ret; + if (res != sizeof(hdr)) + return WIMLIB_ERR_NTFS_3G; + + inode->i_reparse_tag = le32_to_cpu(hdr.rptag); + inode->i_rp_reserved = le16_to_cpu(hdr.rpreserved); + return 0; } static int @@ -262,13 +261,12 @@ static int scan_ntfs_attr(struct wim_inode *inode, ntfs_inode *ni, const char *path, - size_t path_len, struct list_head *unhashed_blobs, struct ntfs_volume_wrapper *volume, ATTR_TYPES type, const ATTR_RECORD *record) { - const u64 data_size = ntfs_get_attribute_value_length(record); + u64 data_size = ntfs_get_attribute_value_length(record); const u32 name_nchars = record->name_length; struct blob_descriptor *blob = NULL; utf16lechar *stream_name = NULL; @@ -285,6 +283,23 @@ scan_ntfs_attr(struct wim_inode *inode, } } + if (unlikely(type == AT_REPARSE_POINT)) { + if (data_size < REPARSE_DATA_OFFSET) { + ERROR("Reparse point attribute of \"%s\" " + "is too short!", path); + ret = WIMLIB_ERR_INVALID_REPARSE_DATA; + goto out_cleanup; + } + data_size -= REPARSE_DATA_OFFSET; + + ret = read_reparse_header(ni, inode); + if (ret) { + ERROR_WITH_ERRNO("Error reading reparse point header " + "of \"%s\"", path); + goto out_cleanup; + } + } + /* If the stream is non-empty, set up a blob descriptor for it. */ if (data_size != 0) { blob = new_blob_descriptor(); @@ -317,21 +332,6 @@ scan_ntfs_attr(struct wim_inode *inode, ret = set_attr_sort_key(ni, blob->ntfs_loc); if (ret) goto out_cleanup; - - if (unlikely(type == AT_REPARSE_POINT)) { - if (blob->size < REPARSE_DATA_OFFSET) { - ERROR("Reparse data of \"%s\" " - "is invalid (only %"PRIu64" bytes)!", - path, data_size); - ret = WIMLIB_ERR_INVALID_REPARSE_DATA; - goto out_cleanup; - } - blob->size -= REPARSE_DATA_OFFSET; - ret = read_reparse_tag(ni, blob->ntfs_loc, - &inode->i_reparse_tag); - if (ret) - goto out_cleanup; - } } strm = inode_add_stream(inode, @@ -356,7 +356,6 @@ static int scan_ntfs_attrs_with_type(struct wim_inode *inode, ntfs_inode *ni, const char *path, - size_t path_len, struct list_head *unhashed_blobs, struct ntfs_volume_wrapper *volume, ATTR_TYPES type) @@ -377,7 +376,6 @@ scan_ntfs_attrs_with_type(struct wim_inode *inode, ret = scan_ntfs_attr(inode, ni, path, - path_len, unhashed_blobs, volume, type, @@ -398,7 +396,7 @@ out_put_actx: /* Load the security descriptor of an NTFS inode into the corresponding WIM * inode and the WIM image's security descriptor set. */ -static int +static noinline_for_stack int get_security_descriptor(ntfs_inode *ni, struct wim_inode *inode, ntfs_volume *vol, struct wim_sd_set *sd_set) { @@ -521,14 +519,14 @@ set_dentry_dos_name(struct wim_dentry *dentry, const struct dos_name_map *map) { const struct dos_name_node *node; - if (dentry->is_win32_name) { + if (dentry->d_is_win32_name) { node = lookup_dos_name(map, dentry->d_inode->i_ino); if (node) { - dentry->short_name = utf16le_dupz(node->dos_name, - node->name_nbytes); - if (!dentry->short_name) + dentry->d_short_name = utf16le_dupz(node->dos_name, + node->name_nbytes); + if (!dentry->d_short_name) return WIMLIB_ERR_NOMEM; - dentry->short_name_nbytes = node->name_nbytes; + dentry->d_short_name_nbytes = node->name_nbytes; } else { WARNING("NTFS inode %"PRIu64" has Win32 name with no " "corresponding DOS name", @@ -590,17 +588,13 @@ filldir(void *_ctx, const ntfschar *name, const int name_nchars, goto out; } - /* Ignore . and .. entries */ - ret = 0; - if ((name_nchars == 1 && name[0] == cpu_to_le16('.')) || - (name_nchars == 2 && name[0] == cpu_to_le16('.') && - name[1] == cpu_to_le16('.'))) - goto out; - ret = utf16le_to_tstr(name, name_nbytes, &mbs_name, &mbs_name_nbytes); if (ret) goto out; + if (should_ignore_filename(mbs_name, mbs_name_nbytes)) + goto out_free_mbs_name; + path_len = ctx->path_len; if (path_len != 1) ctx->path[path_len++] = '/'; @@ -610,8 +604,8 @@ filldir(void *_ctx, const ntfschar *name, const int name_nchars, ret = ntfs_3g_build_dentry_tree_recursive(&child, mref, ctx->path, path_len, name_type, ctx->volume, ctx->params); - if (child) - dentry_add_child(ctx->parent, child); + attach_scanned_tree(ctx->parent, child, ctx->params->blob_table); +out_free_mbs_name: FREE(mbs_name); out: ctx->ret = ret; @@ -675,10 +669,10 @@ ntfs_3g_build_dentry_tree_recursive(struct wim_dentry **root_ret, struct wim_inode *inode = NULL; ntfs_inode *ni = NULL; - ret = try_exclude(path, path_len, params); - if (ret < 0) /* Excluded? */ + ret = try_exclude(path, params); + if (unlikely(ret < 0)) /* Excluded? */ goto out_progress; - if (ret > 0) /* Error? */ + if (unlikely(ret > 0)) /* Error? */ goto out; ni = ntfs_inode_open(volume->vol, mref); @@ -717,7 +711,7 @@ ntfs_3g_build_dentry_tree_recursive(struct wim_dentry **root_ret, goto out; if (name_type & FILE_NAME_WIN32) /* Win32 or Win32+DOS name (rather than POSIX) */ - root->is_win32_name = 1; + root->d_is_win32_name = 1; inode = root->d_inode; @@ -733,7 +727,7 @@ ntfs_3g_build_dentry_tree_recursive(struct wim_dentry **root_ret, if (attributes & FILE_ATTRIBUTE_REPARSE_POINT) { /* Scan the reparse point stream. */ - ret = scan_ntfs_attrs_with_type(inode, ni, path, path_len, + ret = scan_ntfs_attrs_with_type(inode, ni, path, params->unhashed_blobs, volume, AT_REPARSE_POINT); if (ret) @@ -746,8 +740,7 @@ ntfs_3g_build_dentry_tree_recursive(struct wim_dentry **root_ret, * may have named data streams. Nondirectories (including reparse * points) can have an unnamed data stream as well as named data * streams. */ - ret = scan_ntfs_attrs_with_type(inode, ni, path, path_len, - params->unhashed_blobs, + ret = scan_ntfs_attrs_with_type(inode, ni, path, params->unhashed_blobs, volume, AT_DATA); if (ret) goto out;