fs/fat/dir.c

14  *  Short name translation 1999, 2001 by Wolfram Pienkoss <wp@bszh.de>
43 				    struct msdos_dir_entry *de)
46 		| (de - (struct msdos_dir_entry *)bh->b_data);
76    AV. OK, there we go: if both bh and de are non-NULL we assume that we just
77    AV. want the next entry (took one explicit de=NULL in vfat/namei.c).
83 			  struct buffer_head **bh, struct msdos_dir_entry **de)
111 	*de = (struct msdos_dir_entry *)((*bh)->b_data + offset);
118 				struct msdos_dir_entry **de)
121 	if (*bh && *de &&
122 	   (*de - (struct msdos_dir_entry *)(*bh)->b_data) <
125 		(*de)++;
128 	return fat__get_entry(dir, pos, bh, de);
277  * @de: On input, points to the current directory entry.
292 			  struct buffer_head **bh, struct msdos_dir_entry **de,
306 	ds = (struct msdos_dir_slot *)*de;
328 		if (fat_get_entry(dir, pos, bh, de) < 0)
332 		ds = (struct msdos_dir_slot *)*de;
340 	if ((*de)->name[0] == DELETED_FLAG)
342 	if ((*de)->attr == ATTR_EXT)
344 	if (IS_FREE((*de)->name) || ((*de)->attr & ATTR_VOLUME))
346 	if (fat_checksum((*de)->name) != alias_checksum)
355  * @de:		directory entry to parse
362 			   const struct msdos_dir_entry *de,
377 	if (!isvfat && dot_hidden && (de->attr & ATTR_HIDDEN)) {
382 	memcpy(work, de->name, sizeof(work));
396 					de->lcase & CASE_LOWER_BASE);
432 					de->lcase & CASE_LOWER_EXT);
481 	struct msdos_dir_entry *de;
490 		if (fat_get_entry(inode, &cpos, &bh, &de) == -1)
494 		if (de->name[0] == DELETED_FLAG)
496 		if (de->attr != ATTR_EXT && (de->attr & ATTR_VOLUME))
498 		if (de->attr != ATTR_EXT && IS_FREE(de->name))
500 		if (de->attr == ATTR_EXT) {
501 			int status = fat_parse_long(inode, &cpos, &bh, &de,
519 		len = fat_parse_short(sb, de, bufname, 0);
539 	nr_slots++;	/* include the de */
540 	sinfo->slot_off = cpos - nr_slots * sizeof(*de);
542 	sinfo->de = de;
544 	sinfo->i_pos = fat_make_i_pos(sb, sinfo->bh, sinfo->de);
572 	struct msdos_dir_entry *de;
602 	if (fat_get_entry(inode, &cpos, &bh, &de) == -1)
611 		if (de->name[0] == DELETED_FLAG)
613 		if (de->attr != ATTR_EXT && (de->attr & ATTR_VOLUME))
615 		if (de->attr != ATTR_EXT && IS_FREE(de->name))
618 		if ((de->attr & ATTR_VOLUME) || IS_FREE(de->name))
622 	if (isvfat && de->attr == ATTR_EXT) {
623 		int status = fat_parse_long(inode, &cpos, &bh, &de,
647 			short_len = fat_parse_short(sb, de, bufname,
662 	short_len = fat_parse_short(sb, de, bufname, sbi->options.dotsOK);
674 	if (!memcmp(de->name, MSDOS_DOT, MSDOS_NAME)) {
677 	} else if (!memcmp(de->name, MSDOS_DOTDOT, MSDOS_NAME)) {
682 		loff_t i_pos = fat_make_i_pos(sb, bh, de);
690 			    (de->attr & ATTR_DIR) ? DT_DIR : DT_REG))
883 			       struct msdos_dir_entry **de)
885 	while (fat_get_entry(dir, pos, bh, de) >= 0) {
887 		if (!IS_FREE((*de)->name) && !((*de)->attr & ATTR_VOLUME))
903 			 struct msdos_dir_entry **de)
907 	*de = NULL;
908 	while (fat_get_short_entry(dir, &offset, bh, de) >= 0) {
909 		if (!strncmp((*de)->name, MSDOS_DOTDOT, MSDOS_NAME))
920 	struct msdos_dir_entry *de;
926 	while (fat_get_short_entry(dir, &cpos, &bh, &de) >= 0) {
927 		if (strncmp(de->name, MSDOS_DOT   , MSDOS_NAME) &&
928 		    strncmp(de->name, MSDOS_DOTDOT, MSDOS_NAME)) {
945 	struct msdos_dir_entry *de;
951 	while (fat_get_short_entry(dir, &cpos, &bh, &de) >= 0) {
952 		if (de->attr & ATTR_DIR)
971 				   &sinfo->de) >= 0) {
972 		if (!strncmp(sinfo->de->name, name, MSDOS_NAME)) {
973 			sinfo->slot_off -= sizeof(*sinfo->de);
975 			sinfo->i_pos = fat_make_i_pos(sb, sinfo->bh, sinfo->de);
995 				   &sinfo->de) >= 0) {
996 		if (fat_get_start(MSDOS_SB(sb), sinfo->de) == i_logstart) {
997 			sinfo->slot_off -= sizeof(*sinfo->de);
999 			sinfo->i_pos = fat_make_i_pos(sb, sinfo->bh, sinfo->de);
1010 	struct msdos_dir_entry *de, *endp;
1015 		if (fat_get_entry(dir, &pos, &bh, &de) < 0) {
1022 		while (nr_slots && de < endp) {
1023 			de->name[0] = DELETED_FLAG;
1024 			de++;
1034 		/* pos is *next* de's position, so this does `- sizeof(de)' */
1035 		pos += ((orig_slots - nr_slots) * sizeof(*de)) - sizeof(*de);
1044 	struct msdos_dir_entry *de;
1053 	de = sinfo->de;
1054 	sinfo->de = NULL;
1057 	while (nr_slots && de >= (struct msdos_dir_entry *)bh->b_data) {
1058 		de->name[0] = DELETED_FLAG;
1059 		de--;
1150 	struct msdos_dir_entry *de;
1169 	de = (struct msdos_dir_entry *)bhs[0]->b_data;
1173 	memcpy(de[0].name, MSDOS_DOT, MSDOS_NAME);
1174 	memcpy(de[1].name, MSDOS_DOTDOT, MSDOS_NAME);
1175 	de->attr = de[1].attr = ATTR_DIR;
1176 	de[0].lcase = de[1].lcase = 0;
1177 	de[0].time = de[1].time = time;
1178 	de[0].date = de[1].date = date;
1181 		de[0].ctime = de[1].ctime = time;
1182 		de[0].ctime_cs = de[1].ctime_cs = time_cs;
1183 		de[0].adate = de[0].cdate = de[1].adate = de[1].cdate = date;
1185 		de[0].ctime = de[1].ctime = 0;
1186 		de[0].ctime_cs = de[1].ctime_cs = 0;
1187 		de[0].adate = de[0].cdate = de[1].adate = de[1].cdate = 0;
1189 	fat_set_start(&de[0], cluster);
1190 	fat_set_start(&de[1], MSDOS_I(dir)->i_logstart);
1191 	de[0].size = de[1].size = 0;
1192 	memset(de + 2, 0, sb->s_blocksize - 2 * sizeof(*de));
1211 			       int *nr_cluster, struct msdos_dir_entry **de,
1271 	*de = (struct msdos_dir_entry *)((*bh)->b_data + offset);
1272 	*i_pos = fat_make_i_pos(sb, *bh, *de);
1299 	struct msdos_dir_entry *de;
1310 	while (fat_get_entry(dir, &pos, &bh, &de) > -1) {
1315 		if (IS_FREE(de->name)) {
1343 	pos -= free_slots * sizeof(*de);
1351 		int size = free_slots * sizeof(*de);
1389 					      &de, &bh, &i_pos);
1408 	sinfo->de = de;
1410 	sinfo->i_pos = fat_make_i_pos(sb, sinfo->bh, sinfo->de);