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);
154 com_err(__func__, retval, _("while listing attributes of \"%s\""),
157 } else if (size == 0) {
161 retval = ext2fs_xattrs_open(fs, ino, &handle);
163 if (retval == EXT2_ET_MISSING_EA_FEATURE)
165 com_err(__func__, retval, _("while opening inode %u"), ino);
169 retval = ext2fs_xattrs_read(handle);
171 com_err(__func__, retval,
172 _("while reading xattrs for inode %u"), ino);
176 retval = ext2fs_get_mem(size, &list);
178 com_err(__func__, retval, _("while allocating memory"));
182 size = llistxattr(filename, list, size);
185 com_err(__func__, retval, _("while listing attributes of \"%s\""),
190 for (i = 0; i < size; i += strlen(&list[i]) + 1) {
191 const char *name = &list[i];
194 value_size = lgetxattr(filename, name, NULL, 0);
195 if (value_size == -1) {
197 com_err(__func__, retval,
198 _("while reading attribute \"%s\" of \"%s\""),
203 retval = ext2fs_get_mem(value_size, &value);
205 com_err(__func__, retval, _("while allocating memory"));
209 value_size = lgetxattr(filename, name, value, value_size);
210 if (value_size == -1) {
211 ext2fs_free_mem(&value);
213 com_err(__func__, retval,
214 _("while reading attribute \"%s\" of \"%s\""),
219 retval = ext2fs_xattr_set(handle, name, value, value_size);
220 ext2fs_free_mem(&value);
222 com_err(__func__, retval,
223 _("while writing attribute \"%s\" to inode %u"),
230 ext2fs_free_mem(&list);
231 close_retval = ext2fs_xattrs_close(&handle);
233 com_err(__func__, retval, _("while closing inode %u"), ino);
234 retval = retval ? retval : close_retval;
238 #else /* HAVE_LLISTXATTR */
239 static errcode_t set_inode_xattr(ext2_filsys fs EXT2FS_ATTR((unused)),
240 ext2_ino_t ino EXT2FS_ATTR((unused)),
241 const char *filename EXT2FS_ATTR((unused)))
245 #endif /* HAVE_LLISTXATTR */
248 /* Make a special files (block and character devices), fifo's, and sockets */
249 errcode_t do_mknod_internal(ext2_filsys fs, ext2_ino_t cwd, const char *name,
250 unsigned int st_mode, unsigned int st_rdev)
254 struct ext2_inode inode;
255 unsigned long devmajor, devminor, mode;
258 switch(st_mode & S_IFMT) {
260 mode = LINUX_S_IFCHR;
261 filetype = EXT2_FT_CHRDEV;
264 mode = LINUX_S_IFBLK;
265 filetype = EXT2_FT_BLKDEV;
268 mode = LINUX_S_IFIFO;
269 filetype = EXT2_FT_FIFO;
273 mode = LINUX_S_IFSOCK;
274 filetype = EXT2_FT_SOCK;
278 return EXT2_ET_INVALID_ARGUMENT;
281 retval = ext2fs_new_inode(fs, cwd, 010755, 0, &ino);
283 com_err(__func__, retval, _("while allocating inode \"%s\""),
289 printf("Allocated inode: %u\n", ino);
291 retval = ext2fs_link(fs, cwd, name, ino, filetype);
292 if (retval == EXT2_ET_DIR_NO_SPACE) {
293 retval = ext2fs_expand_dir(fs, cwd);
295 com_err(__func__, retval,
296 _("while expanding directory"));
299 retval = ext2fs_link(fs, cwd, name, ino, filetype);
302 com_err(name, retval, _("while creating inode \"%s\""), name);
305 if (ext2fs_test_inode_bitmap2(fs->inode_map, ino))
306 com_err(__func__, 0, "Warning: inode already set");
307 ext2fs_inode_alloc_stats2(fs, ino, +1, 0);
308 memset(&inode, 0, sizeof(inode));
310 inode.i_atime = inode.i_ctime = inode.i_mtime =
311 fs->now ? fs->now : time(0);
313 if (filetype != S_IFIFO) {
314 devmajor = major(st_rdev);
315 devminor = minor(st_rdev);
317 if ((devmajor < 256) && (devminor < 256)) {
318 inode.i_block[0] = devmajor * 256 + devminor;
319 inode.i_block[1] = 0;
321 inode.i_block[0] = 0;
322 inode.i_block[1] = (devminor & 0xff) | (devmajor << 8) |
323 ((devminor & ~0xff) << 12);
326 inode.i_links_count = 1;
328 retval = ext2fs_write_new_inode(fs, ino, &inode);
330 com_err(__func__, retval, _("while writing inode %u"), ino);
336 /* Make a symlink name -> target */
337 errcode_t do_symlink_internal(ext2_filsys fs, ext2_ino_t cwd, const char *name,
338 char *target, ext2_ino_t root)
341 ext2_ino_t parent_ino;
344 cp = strrchr(name, '/');
347 retval = ext2fs_namei(fs, root, cwd, name, &parent_ino);
349 com_err(name, retval, 0);
356 retval = ext2fs_symlink(fs, parent_ino, 0, name, target);
357 if (retval == EXT2_ET_DIR_NO_SPACE) {
358 retval = ext2fs_expand_dir(fs, parent_ino);
360 com_err("do_symlink_internal", retval,
361 _("while expanding directory"));
364 retval = ext2fs_symlink(fs, parent_ino, 0, name, target);
367 com_err("ext2fs_symlink", retval,
368 _("while creating symlink \"%s\""), name);
372 /* Make a directory in the fs */
373 errcode_t do_mkdir_internal(ext2_filsys fs, ext2_ino_t cwd, const char *name,
377 ext2_ino_t parent_ino;
381 cp = strrchr(name, '/');
384 retval = ext2fs_namei(fs, root, cwd, name, &parent_ino);
386 com_err(name, retval, _("while looking up \"%s\""),
394 retval = ext2fs_mkdir(fs, parent_ino, 0, name);
395 if (retval == EXT2_ET_DIR_NO_SPACE) {
396 retval = ext2fs_expand_dir(fs, parent_ino);
398 com_err(__func__, retval,
399 _("while expanding directory"));
402 retval = ext2fs_mkdir(fs, parent_ino, 0, name);
405 com_err("ext2fs_mkdir", retval,
406 _("while creating directory \"%s\""), name);
410 #if !defined HAVE_PREAD64 && !defined HAVE_PREAD
411 static ssize_t my_pread(int fd, void *buf, size_t count, off_t offset)
413 if (lseek(fd, offset, SEEK_SET) < 0)
416 return read(fd, buf, count);
418 #endif /* !defined HAVE_PREAD64 && !defined HAVE_PREAD */
420 static errcode_t copy_file_chunk(ext2_filsys fs, int fd, ext2_file_t e2_file,
421 off_t start, off_t end, char *buf,
426 unsigned int written;
430 for (off = start; off < end; off += COPY_FILE_BUFLEN) {
432 got = pread64(fd, buf, COPY_FILE_BUFLEN, off);
434 got = pread(fd, buf, COPY_FILE_BUFLEN, off);
436 got = my_pread(fd, buf, COPY_FILE_BUFLEN, off);
442 for (bpos = 0, ptr = buf; bpos < got; bpos += fs->blocksize) {
443 blen = fs->blocksize;
444 if (blen > got - bpos)
446 if (memcmp(ptr, zerobuf, blen) == 0) {
450 err = ext2fs_file_llseek(e2_file, off + bpos,
451 EXT2_SEEK_SET, NULL);
455 err = ext2fs_file_write(e2_file, ptr, blen,
472 #if defined(SEEK_DATA) && defined(SEEK_HOLE)
473 static errcode_t try_lseek_copy(ext2_filsys fs, int fd, struct stat *statbuf,
474 ext2_file_t e2_file, char *buf, char *zerobuf)
476 off_t data = 0, hole;
477 off_t data_blk, hole_blk;
480 /* Try to use SEEK_DATA and SEEK_HOLE */
481 while (data < statbuf->st_size) {
482 data = lseek(fd, data, SEEK_DATA);
486 return EXT2_ET_UNIMPLEMENTED;
488 hole = lseek(fd, data, SEEK_HOLE);
490 return EXT2_ET_UNIMPLEMENTED;
492 data_blk = data & ~(off_t)(fs->blocksize - 1);
493 hole_blk = ((hole + (off_t)(fs->blocksize - 1)) &
494 ~(off_t)(fs->blocksize - 1));
495 err = copy_file_chunk(fs, fd, e2_file, data_blk, hole_blk, buf,
505 #endif /* SEEK_DATA and SEEK_HOLE */
507 #if defined(FS_IOC_FIEMAP)
508 static errcode_t try_fiemap_copy(ext2_filsys fs, int fd, ext2_file_t e2_file,
509 char *buf, char *zerobuf)
511 #define EXTENT_MAX_COUNT 512
512 struct fiemap *fiemap_buf;
513 struct fiemap_extent *ext_buf, *ext;
514 int ext_buf_size, fie_buf_size;
519 ext_buf_size = EXTENT_MAX_COUNT * sizeof(struct fiemap_extent);
520 fie_buf_size = sizeof(struct fiemap) + ext_buf_size;
522 err = ext2fs_get_memzero(fie_buf_size, &fiemap_buf);
526 ext_buf = fiemap_buf->fm_extents;
527 memset(fiemap_buf, 0, fie_buf_size);
528 fiemap_buf->fm_length = FIEMAP_MAX_OFFSET;
529 fiemap_buf->fm_flags |= FIEMAP_FLAG_SYNC;
530 fiemap_buf->fm_extent_count = EXTENT_MAX_COUNT;
533 fiemap_buf->fm_start = pos;
534 memset(ext_buf, 0, ext_buf_size);
535 err = ioctl(fd, FS_IOC_FIEMAP, fiemap_buf);
536 if (err < 0 && (errno == EOPNOTSUPP || errno == ENOTTY)) {
537 err = EXT2_ET_UNIMPLEMENTED;
539 } else if (err < 0) {
542 } else if (fiemap_buf->fm_mapped_extents == 0)
544 for (i = 0, ext = ext_buf; i < fiemap_buf->fm_mapped_extents;
546 err = copy_file_chunk(fs, fd, e2_file, ext->fe_logical,
547 ext->fe_logical + ext->fe_length,
554 /* Record file's logical offset this time */
555 pos = ext->fe_logical + ext->fe_length;
557 * If fm_extents array has been filled and
558 * there are extents left, continue to cycle.
560 } while (fiemap_buf->fm_mapped_extents == EXTENT_MAX_COUNT &&
561 !(ext->fe_flags & FIEMAP_EXTENT_LAST));
563 ext2fs_free_mem(&fiemap_buf);
566 #endif /* FS_IOC_FIEMAP */
568 static errcode_t copy_file(ext2_filsys fs, int fd, struct stat *statbuf,
572 char *buf = NULL, *zerobuf = NULL;
573 errcode_t err, close_err;
575 err = ext2fs_file_open(fs, ino, EXT2_FILE_WRITE, &e2_file);
579 err = ext2fs_get_mem(COPY_FILE_BUFLEN, &buf);
583 err = ext2fs_get_memzero(fs->blocksize, &zerobuf);
587 #if defined(SEEK_DATA) && defined(SEEK_HOLE)
588 err = try_lseek_copy(fs, fd, statbuf, e2_file, buf, zerobuf);
589 if (err != EXT2_ET_UNIMPLEMENTED)
593 #if defined(FS_IOC_FIEMAP)
594 err = try_fiemap_copy(fs, fd, e2_file, buf, zerobuf);
595 if (err != EXT2_ET_UNIMPLEMENTED)
599 err = copy_file_chunk(fs, fd, e2_file, 0, statbuf->st_size, buf,
602 ext2fs_free_mem(&zerobuf);
603 ext2fs_free_mem(&buf);
604 close_err = ext2fs_file_close(e2_file);
610 static int is_hardlink(struct hdlinks_s *hdlinks, dev_t dev, ino_t ino)
614 for (i = 0; i < hdlinks->count; i++) {
615 if (hdlinks->hdl[i].src_dev == dev &&
616 hdlinks->hdl[i].src_ino == ino)
622 /* Copy the native file to the fs */
623 errcode_t do_write_internal(ext2_filsys fs, ext2_ino_t cwd, const char *src,
624 const char *dest, ext2_ino_t root)
628 ext2_ino_t newfile, parent_ino;
630 struct ext2_inode inode;
633 fd = ext2fs_open_file(src, O_RDONLY, 0);
636 com_err(__func__, retval, _("while opening \"%s\" to copy"),
640 if (fstat(fd, &statbuf) < 0) {
645 cp = strrchr(dest, '/');
648 retval = ext2fs_namei(fs, root, cwd, dest, &parent_ino);
650 com_err(dest, retval, _("while looking up \"%s\""),
658 retval = ext2fs_namei(fs, root, parent_ino, dest, &newfile);
660 retval = EXT2_ET_FILE_EXISTS;
664 retval = ext2fs_new_inode(fs, parent_ino, 010755, 0, &newfile);
668 printf("Allocated inode: %u\n", newfile);
670 retval = ext2fs_link(fs, parent_ino, dest, newfile, EXT2_FT_REG_FILE);
671 if (retval == EXT2_ET_DIR_NO_SPACE) {
672 retval = ext2fs_expand_dir(fs, parent_ino);
675 retval = ext2fs_link(fs, parent_ino, dest, newfile,
680 if (ext2fs_test_inode_bitmap2(fs->inode_map, newfile))
681 com_err(__func__, 0, "Warning: inode already set");
682 ext2fs_inode_alloc_stats2(fs, newfile, +1, 0);
683 memset(&inode, 0, sizeof(inode));
684 inode.i_mode = (statbuf.st_mode & ~S_IFMT) | LINUX_S_IFREG;
685 inode.i_atime = inode.i_ctime = inode.i_mtime =
686 fs->now ? fs->now : time(0);
687 inode.i_links_count = 1;
688 retval = ext2fs_inode_size_set(fs, &inode, statbuf.st_size);
691 if (ext2fs_has_feature_inline_data(fs->super)) {
692 inode.i_flags |= EXT4_INLINE_DATA_FL;
693 } else if (ext2fs_has_feature_extents(fs->super)) {
694 ext2_extent_handle_t handle;
696 inode.i_flags &= ~EXT4_EXTENTS_FL;
697 retval = ext2fs_extent_open2(fs, newfile, &inode, &handle);
700 ext2fs_extent_free(handle);
703 retval = ext2fs_write_new_inode(fs, newfile, &inode);
706 if (inode.i_flags & EXT4_INLINE_DATA_FL) {
707 retval = ext2fs_inline_data_init(fs, newfile);
711 if (LINUX_S_ISREG(inode.i_mode)) {
712 retval = copy_file(fs, fd, &statbuf, newfile);
727 static errcode_t path_append(struct file_info *target, const char *file)
729 if (strlen(file) + target->path_len + 1 > target->path_max_len) {
731 target->path_max_len *= 2;
732 p = realloc(target->path, target->path_max_len);
734 return EXT2_ET_NO_MEMORY;
737 target->path_len += sprintf(target->path + target->path_len, "/%s",
743 static int scandir(const char *dir_name, struct dirent ***name_list,
744 int (*filter)(const struct dirent*),
745 int (*compar)(const struct dirent**, const struct dirent**)) {
748 struct dirent **temp_list = NULL;
749 size_t temp_list_size = 0; // unit: num of dirent
752 dir = opendir(dir_name);
757 while ((dent = readdir(dir))) {
758 if (filter != NULL && !(*filter)(dent))
761 // re-allocate the list
762 if (num_dent == temp_list_size) {
763 size_t new_list_size = temp_list_size + 32;
764 struct dirent **new_list = (struct dirent**)realloc(
765 temp_list, new_list_size * sizeof(struct dirent*));
766 if (new_list == NULL) {
769 temp_list_size = new_list_size;
770 temp_list = new_list;
772 // add the copy of dirent to the list
773 temp_list[num_dent] = (struct dirent*)malloc((dent->d_reclen + 3) & ~3);
774 if (!temp_list[num_dent])
776 memcpy(temp_list[num_dent], dent, dent->d_reclen);
780 if (compar != NULL) {
781 qsort(temp_list, num_dent, sizeof(struct dirent*),
782 (int (*)(const void*, const void*))compar);
785 // release the temp list
786 *name_list = temp_list;
790 if (temp_list != NULL) {
791 while (num_dent > 0) {
792 free(temp_list[--num_dent]);
801 static int alphasort(const struct dirent **a, const struct dirent **b) {
802 return strcoll((*a)->d_name, (*b)->d_name);
806 /* Copy files from source_dir to fs in alphabetical order */
807 static errcode_t __populate_fs(ext2_filsys fs, ext2_ino_t parent_ino,
808 const char *source_dir, ext2_ino_t root,
809 struct hdlinks_s *hdlinks,
810 struct file_info *target,
811 struct fs_ops_callbacks *fs_callbacks)
814 struct dirent **dent;
816 char *ln_target = NULL;
817 unsigned int save_inode;
819 errcode_t retval = 0;
822 size_t cur_dir_path_len;
825 if (chdir(source_dir) < 0) {
827 com_err(__func__, retval,
828 _("while changing working directory to \"%s\""),
833 num_dents = scandir(".", &dent, NULL, alphasort);
837 com_err(__func__, retval,
838 _("while scanning directory \"%s\""), source_dir);
842 for (i = 0; i < num_dents; free(dent[i]), i++) {
843 name = dent[i]->d_name;
844 if ((!strcmp(name, ".")) || (!strcmp(name, "..")))
846 if (lstat(name, &st)) {
848 com_err(__func__, retval, _("while lstat \"%s\""),
853 /* Check for hardlinks */
855 if (!S_ISDIR(st.st_mode) && !S_ISLNK(st.st_mode) &&
857 hdlink = is_hardlink(hdlinks, st.st_dev, st.st_ino);
859 retval = add_link(fs, parent_ino,
860 hdlinks->hdl[hdlink].dst_ino,
863 com_err(__func__, retval,
864 "while linking %s", name);
872 cur_dir_path_len = target->path_len;
873 retval = path_append(target, name);
875 com_err(__func__, retval,
876 "while appending %s", name);
880 if (fs_callbacks && fs_callbacks->create_new_inode) {
881 retval = fs_callbacks->create_new_inode(fs,
882 target->path, name, parent_ino, root,
883 st.st_mode & S_IFMT);
888 switch(st.st_mode & S_IFMT) {
894 retval = do_mknod_internal(fs, parent_ino, name,
895 st.st_mode, st.st_rdev);
897 com_err(__func__, retval,
898 _("while creating special file "
904 ln_target = malloc(st.st_size + 1);
905 if (ln_target == NULL) {
906 com_err(__func__, retval,
910 read_cnt = readlink(name, ln_target,
912 if (read_cnt == -1) {
914 com_err(__func__, retval,
915 _("while trying to read link \"%s\""),
920 if (read_cnt > st.st_size) {
921 com_err(__func__, retval,
922 _("symlink increased in size "
923 "between lstat() and readlink()"));
927 ln_target[read_cnt] = '\0';
928 retval = do_symlink_internal(fs, parent_ino, name,
932 com_err(__func__, retval,
933 _("while writing symlink\"%s\""),
940 retval = do_write_internal(fs, parent_ino, name, name,
943 com_err(__func__, retval,
944 _("while writing file \"%s\""), name);
949 /* Don't choke on /lost+found */
950 if (parent_ino == EXT2_ROOT_INO &&
951 strcmp(name, "lost+found") == 0)
953 retval = do_mkdir_internal(fs, parent_ino, name,
956 com_err(__func__, retval,
957 _("while making dir \"%s\""), name);
961 retval = ext2fs_namei(fs, root, parent_ino,
964 com_err(name, retval, 0);
967 /* Populate the dir recursively*/
968 retval = __populate_fs(fs, ino, name, root, hdlinks,
969 target, fs_callbacks);
974 com_err(__func__, retval,
975 _("while changing directory"));
981 _("ignoring entry \"%s\""), name);
984 retval = ext2fs_namei(fs, root, parent_ino, name, &ino);
986 com_err(name, retval, _("while looking up \"%s\""),
991 retval = set_inode_extra(fs, ino, &st);
993 com_err(__func__, retval,
994 _("while setting inode for \"%s\""), name);
998 retval = set_inode_xattr(fs, ino, name);
1000 com_err(__func__, retval,
1001 _("while setting xattrs for \"%s\""), name);
1005 if (fs_callbacks && fs_callbacks->end_create_new_inode) {
1006 retval = fs_callbacks->end_create_new_inode(fs,
1007 target->path, name, parent_ino, root,
1008 st.st_mode & S_IFMT);
1013 /* Save the hardlink ino */
1016 * Check whether need more memory, and we don't need
1017 * free() since the lifespan will be over after the fs
1020 if (hdlinks->count == hdlinks->size) {
1021 void *p = realloc(hdlinks->hdl,
1022 (hdlinks->size + HDLINK_CNT) *
1023 sizeof(struct hdlink_s));
1025 retval = EXT2_ET_NO_MEMORY;
1026 com_err(name, retval,
1027 _("while saving inode data"));
1031 hdlinks->size += HDLINK_CNT;
1033 hdlinks->hdl[hdlinks->count].src_dev = st.st_dev;
1034 hdlinks->hdl[hdlinks->count].src_ino = st.st_ino;
1035 hdlinks->hdl[hdlinks->count].dst_ino = ino;
1038 target->path_len = cur_dir_path_len;
1039 target->path[target->path_len] = 0;
1043 for (; i < num_dents; free(dent[i]), i++);
1048 errcode_t populate_fs2(ext2_filsys fs, ext2_ino_t parent_ino,
1049 const char *source_dir, ext2_ino_t root,
1050 struct fs_ops_callbacks *fs_callbacks)
1052 struct file_info file_info;
1053 struct hdlinks_s hdlinks;
1056 if (!(fs->flags & EXT2_FLAG_RW)) {
1057 com_err(__func__, 0, "Filesystem opened readonly");
1062 hdlinks.size = HDLINK_CNT;
1063 hdlinks.hdl = realloc(NULL, hdlinks.size * sizeof(struct hdlink_s));
1064 if (hdlinks.hdl == NULL) {
1066 com_err(__func__, retval, _("while allocating memory"));
1070 file_info.path_len = 0;
1071 file_info.path_max_len = 255;
1072 file_info.path = calloc(file_info.path_max_len, 1);
1074 retval = set_inode_xattr(fs, root, source_dir);
1076 com_err(__func__, retval,
1077 _("while copying xattrs on root directory"));
1081 retval = __populate_fs(fs, parent_ino, source_dir, root, &hdlinks,
1082 &file_info, fs_callbacks);
1085 free(file_info.path);
1090 errcode_t populate_fs(ext2_filsys fs, ext2_ino_t parent_ino,
1091 const char *source_dir, ext2_ino_t root)
1093 return populate_fs2(fs, parent_ino, source_dir, root, NULL);