2 * create_inode.c --- create an inode
4 * Copyright (C) 2014 Robert Yang <liezhi.yang@windriver.com>
7 * This file may be redistributed under the terms of the GNU library
8 * General Public License, version 2.
12 #define _FILE_OFFSET_BITS 64
13 #define _LARGEFILE64_SOURCE 1
19 #include <sys/types.h>
21 #include <limits.h> /* for PATH_MAX */
22 #include <dirent.h> /* for scandir() and alphasort() */
23 #if defined HAVE_SYS_XATTR_H
24 #include <sys/xattr.h>
25 #elif defined HAVE_ATTR_XATTR_H
26 #include <attr/xattr.h>
28 #ifdef HAVE_SYS_IOCTL_H
29 #include <sys/ioctl.h>
31 #ifdef HAVE_SYS_SYSMACROS_H
32 #include <sys/sysmacros.h>
35 #include <ext2fs/ext2fs.h>
36 #include <ext2fs/ext2_types.h>
37 #include <ext2fs/fiemap.h>
39 #include "create_inode.h"
40 #include "support/nls-enable.h"
42 /* 64KiB is the minimum blksize to best minimize system call overhead. */
43 #define COPY_FILE_BUFLEN 65536
45 static int ext2_file_type(unsigned int mode)
47 if (LINUX_S_ISREG(mode))
48 return EXT2_FT_REG_FILE;
50 if (LINUX_S_ISDIR(mode))
53 if (LINUX_S_ISCHR(mode))
54 return EXT2_FT_CHRDEV;
56 if (LINUX_S_ISBLK(mode))
57 return EXT2_FT_BLKDEV;
59 if (LINUX_S_ISLNK(mode))
60 return EXT2_FT_SYMLINK;
62 if (LINUX_S_ISFIFO(mode))
65 if (LINUX_S_ISSOCK(mode))
71 /* Link an inode number to a directory */
72 static errcode_t add_link(ext2_filsys fs, ext2_ino_t parent_ino,
73 ext2_ino_t ino, const char *name)
75 struct ext2_inode inode;
78 retval = ext2fs_read_inode(fs, ino, &inode);
80 com_err(__func__, retval, _("while reading inode %u"), ino);
84 retval = ext2fs_link(fs, parent_ino, name, ino,
85 ext2_file_type(inode.i_mode));
86 if (retval == EXT2_ET_DIR_NO_SPACE) {
87 retval = ext2fs_expand_dir(fs, parent_ino);
89 com_err(__func__, retval,
90 _("while expanding directory"));
93 retval = ext2fs_link(fs, parent_ino, name, ino,
94 ext2_file_type(inode.i_mode));
97 com_err(__func__, retval, _("while linking \"%s\""), name);
101 inode.i_links_count++;
103 retval = ext2fs_write_inode(fs, ino, &inode);
105 com_err(__func__, retval, _("while writing inode %u"), ino);
110 /* Set the uid, gid, mode and time for the inode */
111 static errcode_t set_inode_extra(ext2_filsys fs, ext2_ino_t ino,
115 struct ext2_inode inode;
117 retval = ext2fs_read_inode(fs, ino, &inode);
119 com_err(__func__, retval, _("while reading inode %u"), ino);
123 inode.i_uid = st->st_uid;
124 ext2fs_set_i_uid_high(inode, st->st_uid >> 16);
125 inode.i_gid = st->st_gid;
126 ext2fs_set_i_gid_high(inode, st->st_gid >> 16);
127 inode.i_mode = (LINUX_S_IFMT & inode.i_mode) | (~S_IFMT & st->st_mode);
128 inode.i_atime = st->st_atime;
129 inode.i_mtime = st->st_mtime;
130 inode.i_ctime = st->st_ctime;
132 retval = ext2fs_write_inode(fs, ino, &inode);
134 com_err(__func__, retval, _("while writing inode %u"), ino);
138 #ifdef HAVE_LLISTXATTR
139 static errcode_t set_inode_xattr(ext2_filsys fs, ext2_ino_t ino,
140 const char *filename)
142 errcode_t retval, close_retval;
143 struct ext2_xattr_handle *handle;
144 ssize_t size, value_size;
151 size = llistxattr(filename, NULL, 0);
153 if (errno == ENOTSUP)
156 com_err(__func__, retval, _("while listing attributes of \"%s\""),
159 } else if (size == 0) {
163 retval = ext2fs_xattrs_open(fs, ino, &handle);
165 if (retval == EXT2_ET_MISSING_EA_FEATURE)
167 com_err(__func__, retval, _("while opening inode %u"), ino);
171 retval = ext2fs_xattrs_read(handle);
173 com_err(__func__, retval,
174 _("while reading xattrs for inode %u"), ino);
178 retval = ext2fs_get_mem(size, &list);
180 com_err(__func__, retval, _("while allocating memory"));
184 size = llistxattr(filename, list, size);
187 com_err(__func__, retval, _("while listing attributes of \"%s\""),
192 for (i = 0; i < size; i += strlen(&list[i]) + 1) {
193 const char *name = &list[i];
196 value_size = lgetxattr(filename, name, NULL, 0);
197 if (value_size == -1) {
199 com_err(__func__, retval,
200 _("while reading attribute \"%s\" of \"%s\""),
205 retval = ext2fs_get_mem(value_size, &value);
207 com_err(__func__, retval, _("while allocating memory"));
211 value_size = lgetxattr(filename, name, value, value_size);
212 if (value_size == -1) {
213 ext2fs_free_mem(&value);
215 com_err(__func__, retval,
216 _("while reading attribute \"%s\" of \"%s\""),
221 retval = ext2fs_xattr_set(handle, name, value, value_size);
222 ext2fs_free_mem(&value);
224 com_err(__func__, retval,
225 _("while writing attribute \"%s\" to inode %u"),
232 ext2fs_free_mem(&list);
233 close_retval = ext2fs_xattrs_close(&handle);
235 com_err(__func__, retval, _("while closing inode %u"), ino);
236 retval = retval ? retval : close_retval;
240 #else /* HAVE_LLISTXATTR */
241 static errcode_t set_inode_xattr(ext2_filsys fs EXT2FS_ATTR((unused)),
242 ext2_ino_t ino EXT2FS_ATTR((unused)),
243 const char *filename EXT2FS_ATTR((unused)))
247 #endif /* HAVE_LLISTXATTR */
250 /* Make a special files (block and character devices), fifo's, and sockets */
251 errcode_t do_mknod_internal(ext2_filsys fs, ext2_ino_t cwd, const char *name,
252 unsigned int st_mode, unsigned int st_rdev)
256 struct ext2_inode inode;
257 unsigned long devmajor, devminor, mode;
260 switch(st_mode & S_IFMT) {
262 mode = LINUX_S_IFCHR;
263 filetype = EXT2_FT_CHRDEV;
266 mode = LINUX_S_IFBLK;
267 filetype = EXT2_FT_BLKDEV;
270 mode = LINUX_S_IFIFO;
271 filetype = EXT2_FT_FIFO;
275 mode = LINUX_S_IFSOCK;
276 filetype = EXT2_FT_SOCK;
280 return EXT2_ET_INVALID_ARGUMENT;
283 retval = ext2fs_new_inode(fs, cwd, 010755, 0, &ino);
285 com_err(__func__, retval, _("while allocating inode \"%s\""),
291 printf("Allocated inode: %u\n", ino);
293 retval = ext2fs_link(fs, cwd, name, ino, filetype);
294 if (retval == EXT2_ET_DIR_NO_SPACE) {
295 retval = ext2fs_expand_dir(fs, cwd);
297 com_err(__func__, retval,
298 _("while expanding directory"));
301 retval = ext2fs_link(fs, cwd, name, ino, filetype);
304 com_err(name, retval, _("while creating inode \"%s\""), name);
307 if (ext2fs_test_inode_bitmap2(fs->inode_map, ino))
308 com_err(__func__, 0, "Warning: inode already set");
309 ext2fs_inode_alloc_stats2(fs, ino, +1, 0);
310 memset(&inode, 0, sizeof(inode));
312 inode.i_atime = inode.i_ctime = inode.i_mtime =
313 fs->now ? fs->now : time(0);
315 if (filetype != S_IFIFO) {
316 devmajor = major(st_rdev);
317 devminor = minor(st_rdev);
319 if ((devmajor < 256) && (devminor < 256)) {
320 inode.i_block[0] = devmajor * 256 + devminor;
321 inode.i_block[1] = 0;
323 inode.i_block[0] = 0;
324 inode.i_block[1] = (devminor & 0xff) | (devmajor << 8) |
325 ((devminor & ~0xff) << 12);
328 inode.i_links_count = 1;
330 retval = ext2fs_write_new_inode(fs, ino, &inode);
332 com_err(__func__, retval, _("while writing inode %u"), ino);
338 /* Make a symlink name -> target */
339 errcode_t do_symlink_internal(ext2_filsys fs, ext2_ino_t cwd, const char *name,
340 char *target, ext2_ino_t root)
343 ext2_ino_t parent_ino;
346 cp = strrchr(name, '/');
349 retval = ext2fs_namei(fs, root, cwd, name, &parent_ino);
351 com_err(name, retval, 0);
358 retval = ext2fs_symlink(fs, parent_ino, 0, name, target);
359 if (retval == EXT2_ET_DIR_NO_SPACE) {
360 retval = ext2fs_expand_dir(fs, parent_ino);
362 com_err("do_symlink_internal", retval,
363 _("while expanding directory"));
366 retval = ext2fs_symlink(fs, parent_ino, 0, name, target);
369 com_err("ext2fs_symlink", retval,
370 _("while creating symlink \"%s\""), name);
374 /* Make a directory in the fs */
375 errcode_t do_mkdir_internal(ext2_filsys fs, ext2_ino_t cwd, const char *name,
379 ext2_ino_t parent_ino;
383 cp = strrchr(name, '/');
386 retval = ext2fs_namei(fs, root, cwd, name, &parent_ino);
388 com_err(name, retval, _("while looking up \"%s\""),
396 retval = ext2fs_mkdir(fs, parent_ino, 0, name);
397 if (retval == EXT2_ET_DIR_NO_SPACE) {
398 retval = ext2fs_expand_dir(fs, parent_ino);
400 com_err(__func__, retval,
401 _("while expanding directory"));
404 retval = ext2fs_mkdir(fs, parent_ino, 0, name);
407 com_err("ext2fs_mkdir", retval,
408 _("while creating directory \"%s\""), name);
412 #if !defined HAVE_PREAD64 && !defined HAVE_PREAD
413 static ssize_t my_pread(int fd, void *buf, size_t count, off_t offset)
415 if (lseek(fd, offset, SEEK_SET) < 0)
418 return read(fd, buf, count);
420 #endif /* !defined HAVE_PREAD64 && !defined HAVE_PREAD */
422 static errcode_t copy_file_chunk(ext2_filsys fs, int fd, ext2_file_t e2_file,
423 off_t start, off_t end, char *buf,
428 unsigned int written;
432 for (off = start; off < end; off += COPY_FILE_BUFLEN) {
434 got = pread64(fd, buf, COPY_FILE_BUFLEN, off);
436 got = pread(fd, buf, COPY_FILE_BUFLEN, off);
438 got = my_pread(fd, buf, COPY_FILE_BUFLEN, off);
444 for (bpos = 0, ptr = buf; bpos < got; bpos += fs->blocksize) {
445 blen = fs->blocksize;
446 if (blen > got - bpos)
448 if (memcmp(ptr, zerobuf, blen) == 0) {
452 err = ext2fs_file_llseek(e2_file, off + bpos,
453 EXT2_SEEK_SET, NULL);
457 err = ext2fs_file_write(e2_file, ptr, blen,
474 #if defined(SEEK_DATA) && defined(SEEK_HOLE)
475 static errcode_t try_lseek_copy(ext2_filsys fs, int fd, struct stat *statbuf,
476 ext2_file_t e2_file, char *buf, char *zerobuf)
478 off_t data = 0, hole;
479 off_t data_blk, hole_blk;
482 /* Try to use SEEK_DATA and SEEK_HOLE */
483 while (data < statbuf->st_size) {
484 data = lseek(fd, data, SEEK_DATA);
488 return EXT2_ET_UNIMPLEMENTED;
490 hole = lseek(fd, data, SEEK_HOLE);
492 return EXT2_ET_UNIMPLEMENTED;
494 data_blk = data & ~(off_t)(fs->blocksize - 1);
495 hole_blk = ((hole + (off_t)(fs->blocksize - 1)) &
496 ~(off_t)(fs->blocksize - 1));
497 err = copy_file_chunk(fs, fd, e2_file, data_blk, hole_blk, buf,
507 #endif /* SEEK_DATA and SEEK_HOLE */
509 #if defined(FS_IOC_FIEMAP)
510 static errcode_t try_fiemap_copy(ext2_filsys fs, int fd, ext2_file_t e2_file,
511 char *buf, char *zerobuf)
513 #define EXTENT_MAX_COUNT 512
514 struct fiemap *fiemap_buf;
515 struct fiemap_extent *ext_buf, *ext;
516 int ext_buf_size, fie_buf_size;
521 ext_buf_size = EXTENT_MAX_COUNT * sizeof(struct fiemap_extent);
522 fie_buf_size = sizeof(struct fiemap) + ext_buf_size;
524 err = ext2fs_get_memzero(fie_buf_size, &fiemap_buf);
528 ext_buf = fiemap_buf->fm_extents;
529 memset(fiemap_buf, 0, fie_buf_size);
530 fiemap_buf->fm_length = FIEMAP_MAX_OFFSET;
531 fiemap_buf->fm_flags |= FIEMAP_FLAG_SYNC;
532 fiemap_buf->fm_extent_count = EXTENT_MAX_COUNT;
535 fiemap_buf->fm_start = pos;
536 memset(ext_buf, 0, ext_buf_size);
537 err = ioctl(fd, FS_IOC_FIEMAP, fiemap_buf);
538 if (err < 0 && (errno == EOPNOTSUPP || errno == ENOTTY)) {
539 err = EXT2_ET_UNIMPLEMENTED;
541 } else if (err < 0) {
544 } else if (fiemap_buf->fm_mapped_extents == 0)
546 for (i = 0, ext = ext_buf; i < fiemap_buf->fm_mapped_extents;
548 err = copy_file_chunk(fs, fd, e2_file, ext->fe_logical,
549 ext->fe_logical + ext->fe_length,
556 /* Record file's logical offset this time */
557 pos = ext->fe_logical + ext->fe_length;
559 * If fm_extents array has been filled and
560 * there are extents left, continue to cycle.
562 } while (fiemap_buf->fm_mapped_extents == EXTENT_MAX_COUNT &&
563 !(ext->fe_flags & FIEMAP_EXTENT_LAST));
565 ext2fs_free_mem(&fiemap_buf);
568 #endif /* FS_IOC_FIEMAP */
570 static errcode_t copy_file(ext2_filsys fs, int fd, struct stat *statbuf,
574 char *buf = NULL, *zerobuf = NULL;
575 errcode_t err, close_err;
577 err = ext2fs_file_open(fs, ino, EXT2_FILE_WRITE, &e2_file);
581 err = ext2fs_get_mem(COPY_FILE_BUFLEN, &buf);
585 err = ext2fs_get_memzero(fs->blocksize, &zerobuf);
589 #if defined(SEEK_DATA) && defined(SEEK_HOLE)
590 err = try_lseek_copy(fs, fd, statbuf, e2_file, buf, zerobuf);
591 if (err != EXT2_ET_UNIMPLEMENTED)
595 #if defined(FS_IOC_FIEMAP)
596 err = try_fiemap_copy(fs, fd, e2_file, buf, zerobuf);
597 if (err != EXT2_ET_UNIMPLEMENTED)
601 err = copy_file_chunk(fs, fd, e2_file, 0, statbuf->st_size, buf,
604 ext2fs_free_mem(&zerobuf);
605 ext2fs_free_mem(&buf);
606 close_err = ext2fs_file_close(e2_file);
612 static int is_hardlink(struct hdlinks_s *hdlinks, dev_t dev, ino_t ino)
616 for (i = 0; i < hdlinks->count; i++) {
617 if (hdlinks->hdl[i].src_dev == dev &&
618 hdlinks->hdl[i].src_ino == ino)
624 /* Copy the native file to the fs */
625 errcode_t do_write_internal(ext2_filsys fs, ext2_ino_t cwd, const char *src,
626 const char *dest, ext2_ino_t root)
630 ext2_ino_t newfile, parent_ino;
632 struct ext2_inode inode;
635 fd = ext2fs_open_file(src, O_RDONLY, 0);
638 com_err(__func__, retval, _("while opening \"%s\" to copy"),
642 if (fstat(fd, &statbuf) < 0) {
647 cp = strrchr(dest, '/');
650 retval = ext2fs_namei(fs, root, cwd, dest, &parent_ino);
652 com_err(dest, retval, _("while looking up \"%s\""),
660 retval = ext2fs_namei(fs, root, parent_ino, dest, &newfile);
662 retval = EXT2_ET_FILE_EXISTS;
666 retval = ext2fs_new_inode(fs, parent_ino, 010755, 0, &newfile);
670 printf("Allocated inode: %u\n", newfile);
672 retval = ext2fs_link(fs, parent_ino, dest, newfile, EXT2_FT_REG_FILE);
673 if (retval == EXT2_ET_DIR_NO_SPACE) {
674 retval = ext2fs_expand_dir(fs, parent_ino);
677 retval = ext2fs_link(fs, parent_ino, dest, newfile,
682 if (ext2fs_test_inode_bitmap2(fs->inode_map, newfile))
683 com_err(__func__, 0, "Warning: inode already set");
684 ext2fs_inode_alloc_stats2(fs, newfile, +1, 0);
685 memset(&inode, 0, sizeof(inode));
686 inode.i_mode = (statbuf.st_mode & ~S_IFMT) | LINUX_S_IFREG;
687 inode.i_atime = inode.i_ctime = inode.i_mtime =
688 fs->now ? fs->now : time(0);
689 inode.i_links_count = 1;
690 retval = ext2fs_inode_size_set(fs, &inode, statbuf.st_size);
693 if (ext2fs_has_feature_inline_data(fs->super)) {
694 inode.i_flags |= EXT4_INLINE_DATA_FL;
695 } else if (ext2fs_has_feature_extents(fs->super)) {
696 ext2_extent_handle_t handle;
698 inode.i_flags &= ~EXT4_EXTENTS_FL;
699 retval = ext2fs_extent_open2(fs, newfile, &inode, &handle);
702 ext2fs_extent_free(handle);
705 retval = ext2fs_write_new_inode(fs, newfile, &inode);
708 if (inode.i_flags & EXT4_INLINE_DATA_FL) {
709 retval = ext2fs_inline_data_init(fs, newfile);
713 if (LINUX_S_ISREG(inode.i_mode)) {
714 retval = copy_file(fs, fd, &statbuf, newfile);
729 static errcode_t path_append(struct file_info *target, const char *file)
731 if (strlen(file) + target->path_len + 1 > target->path_max_len) {
733 target->path_max_len *= 2;
734 p = realloc(target->path, target->path_max_len);
736 return EXT2_ET_NO_MEMORY;
739 target->path_len += sprintf(target->path + target->path_len, "/%s",
745 static int scandir(const char *dir_name, struct dirent ***name_list,
746 int (*filter)(const struct dirent*),
747 int (*compar)(const struct dirent**, const struct dirent**)) {
750 struct dirent **temp_list = NULL;
751 size_t temp_list_size = 0; // unit: num of dirent
754 dir = opendir(dir_name);
759 while ((dent = readdir(dir))) {
760 if (filter != NULL && !(*filter)(dent))
763 // re-allocate the list
764 if (num_dent == temp_list_size) {
765 size_t new_list_size = temp_list_size + 32;
766 struct dirent **new_list = (struct dirent**)realloc(
767 temp_list, new_list_size * sizeof(struct dirent*));
768 if (new_list == NULL)
770 temp_list_size = new_list_size;
771 temp_list = new_list;
773 // add the copy of dirent to the list
774 temp_list[num_dent] = (struct dirent*)malloc((dent->d_reclen + 3) & ~3);
775 if (!temp_list[num_dent])
777 memcpy(temp_list[num_dent], dent, dent->d_reclen);
782 if (compar != NULL) {
783 qsort(temp_list, num_dent, sizeof(struct dirent*),
784 (int (*)(const void*, const void*))compar);
786 *name_list = temp_list;
792 free(temp_list[--num_dent]);
797 static int alphasort(const struct dirent **a, const struct dirent **b) {
798 return strcoll((*a)->d_name, (*b)->d_name);
802 /* Copy files from source_dir to fs in alphabetical order */
803 static errcode_t __populate_fs(ext2_filsys fs, ext2_ino_t parent_ino,
804 const char *source_dir, ext2_ino_t root,
805 struct hdlinks_s *hdlinks,
806 struct file_info *target,
807 struct fs_ops_callbacks *fs_callbacks)
810 struct dirent **dent;
812 unsigned int save_inode;
814 errcode_t retval = 0;
816 size_t cur_dir_path_len;
819 if (chdir(source_dir) < 0) {
821 com_err(__func__, retval,
822 _("while changing working directory to \"%s\""),
827 num_dents = scandir(".", &dent, NULL, alphasort);
831 com_err(__func__, retval,
832 _("while scanning directory \"%s\""), source_dir);
836 for (i = 0; i < num_dents; free(dent[i]), i++) {
837 name = dent[i]->d_name;
838 if ((!strcmp(name, ".")) || (!strcmp(name, "..")))
840 if (lstat(name, &st)) {
842 com_err(__func__, retval, _("while lstat \"%s\""),
847 /* Check for hardlinks */
849 if (!S_ISDIR(st.st_mode) && !S_ISLNK(st.st_mode) &&
851 hdlink = is_hardlink(hdlinks, st.st_dev, st.st_ino);
853 retval = add_link(fs, parent_ino,
854 hdlinks->hdl[hdlink].dst_ino,
857 com_err(__func__, retval,
858 "while linking %s", name);
866 cur_dir_path_len = target->path_len;
867 retval = path_append(target, name);
869 com_err(__func__, retval,
870 "while appending %s", name);
874 if (fs_callbacks && fs_callbacks->create_new_inode) {
875 retval = fs_callbacks->create_new_inode(fs,
876 target->path, name, parent_ino, root,
877 st.st_mode & S_IFMT);
882 switch(st.st_mode & S_IFMT) {
888 retval = do_mknod_internal(fs, parent_ino, name,
889 st.st_mode, st.st_rdev);
891 com_err(__func__, retval,
892 _("while creating special file "
901 ln_target = malloc(st.st_size + 1);
902 if (ln_target == NULL) {
903 com_err(__func__, retval,
907 read_cnt = readlink(name, ln_target,
909 if (read_cnt == -1) {
911 com_err(__func__, retval,
912 _("while trying to read link \"%s\""),
917 if (read_cnt > st.st_size) {
918 com_err(__func__, retval,
919 _("symlink increased in size "
920 "between lstat() and readlink()"));
924 ln_target[read_cnt] = '\0';
925 retval = do_symlink_internal(fs, parent_ino, name,
929 com_err(__func__, retval,
930 _("while writing symlink\"%s\""),
938 retval = do_write_internal(fs, parent_ino, name, name,
941 com_err(__func__, retval,
942 _("while writing file \"%s\""), name);
947 /* Don't choke on /lost+found */
948 if (parent_ino == EXT2_ROOT_INO &&
949 strcmp(name, "lost+found") == 0)
951 retval = do_mkdir_internal(fs, parent_ino, name,
954 com_err(__func__, retval,
955 _("while making dir \"%s\""), name);
959 retval = ext2fs_namei(fs, root, parent_ino,
962 com_err(name, retval, 0);
965 /* Populate the dir recursively*/
966 retval = __populate_fs(fs, ino, name, root, hdlinks,
967 target, fs_callbacks);
972 com_err(__func__, retval,
973 _("while changing directory"));
979 _("ignoring entry \"%s\""), name);
982 retval = ext2fs_namei(fs, root, parent_ino, name, &ino);
984 com_err(name, retval, _("while looking up \"%s\""),
989 retval = set_inode_extra(fs, ino, &st);
991 com_err(__func__, retval,
992 _("while setting inode for \"%s\""), name);
996 retval = set_inode_xattr(fs, ino, name);
998 com_err(__func__, retval,
999 _("while setting xattrs for \"%s\""), name);
1003 if (fs_callbacks && fs_callbacks->end_create_new_inode) {
1004 retval = fs_callbacks->end_create_new_inode(fs,
1005 target->path, name, parent_ino, root,
1006 st.st_mode & S_IFMT);
1011 /* Save the hardlink ino */
1014 * Check whether need more memory, and we don't need
1015 * free() since the lifespan will be over after the fs
1018 if (hdlinks->count == hdlinks->size) {
1019 void *p = realloc(hdlinks->hdl,
1020 (hdlinks->size + HDLINK_CNT) *
1021 sizeof(struct hdlink_s));
1023 retval = EXT2_ET_NO_MEMORY;
1024 com_err(name, retval,
1025 _("while saving inode data"));
1029 hdlinks->size += HDLINK_CNT;
1031 hdlinks->hdl[hdlinks->count].src_dev = st.st_dev;
1032 hdlinks->hdl[hdlinks->count].src_ino = st.st_ino;
1033 hdlinks->hdl[hdlinks->count].dst_ino = ino;
1036 target->path_len = cur_dir_path_len;
1037 target->path[target->path_len] = 0;
1041 for (; i < num_dents; free(dent[i]), i++);
1046 errcode_t populate_fs2(ext2_filsys fs, ext2_ino_t parent_ino,
1047 const char *source_dir, ext2_ino_t root,
1048 struct fs_ops_callbacks *fs_callbacks)
1050 struct file_info file_info;
1051 struct hdlinks_s hdlinks;
1054 if (!(fs->flags & EXT2_FLAG_RW)) {
1055 com_err(__func__, 0, "Filesystem opened readonly");
1060 hdlinks.size = HDLINK_CNT;
1061 hdlinks.hdl = realloc(NULL, hdlinks.size * sizeof(struct hdlink_s));
1062 if (hdlinks.hdl == NULL) {
1064 com_err(__func__, retval, _("while allocating memory"));
1068 file_info.path_len = 0;
1069 file_info.path_max_len = 255;
1070 file_info.path = calloc(file_info.path_max_len, 1);
1072 retval = set_inode_xattr(fs, root, source_dir);
1074 com_err(__func__, retval,
1075 _("while copying xattrs on root directory"));
1079 retval = __populate_fs(fs, parent_ino, source_dir, root, &hdlinks,
1080 &file_info, fs_callbacks);
1083 free(file_info.path);
1088 errcode_t populate_fs(ext2_filsys fs, ext2_ino_t parent_ino,
1089 const char *source_dir, ext2_ino_t root)
1091 return populate_fs2(fs, parent_ino, source_dir, root, NULL);