e2fsck: handle inline data symlinks

Perform some basic checks on inline-data symlinks.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/e2fsck/pass1.c b/e2fsck/pass1.c
index 5115a85..74eed4e 100644 (file)
--- a/e2fsck/pass1.c
+++ b/e2fsck/pass1.c
@@ -183,6 +183,8 @@ int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
                return 0;
 
        if (inode->i_flags & EXT4_EXTENTS_FL) {
+               if (inode->i_flags & EXT4_INLINE_DATA_FL)
+                       return 0;
                if (inode->i_size > fs->blocksize)
                        return 0;
                if (ext2fs_extent_open2(fs, ino, inode, &handle))
@@ -217,6 +219,8 @@ int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
 
        blocks = ext2fs_inode_data_blocks2(fs, inode);
        if (blocks) {
+               if (inode->i_flags & EXT4_INLINE_DATA_FL)
+                       return 0;
                if ((inode->i_size >= fs->blocksize) ||
                    (blocks != fs->blocksize >> 9) ||
                    (inode->i_block[0] < fs->super->s_first_data_block) ||
@@ -233,6 +237,27 @@ int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
                len = strnlen(buf, fs->blocksize);
                if (len == fs->blocksize)
                        return 0;
+       } else if (inode->i_flags & EXT4_INLINE_DATA_FL) {
+               char *inline_buf = NULL;
+               size_t inline_sz = 0;
+
+               if (ext2fs_inline_data_size(fs, ino, &inline_sz))
+                       return 0;
+               if (inode->i_size != inline_sz)
+                       return 0;
+               if (ext2fs_get_mem(inline_sz + 1, &inline_buf))
+                       return 0;
+               i = 0;
+               if (ext2fs_inline_data_get(fs, ino, inode, inline_buf, NULL))
+                       goto exit_inline;
+               inline_buf[inline_sz] = 0;
+               len = strnlen(inline_buf, inline_sz);
+               if (len != inline_sz)
+                       goto exit_inline;
+               i = 1;
+exit_inline:
+               ext2fs_free_mem(&inline_buf);
+               return i;
        } else {
                if (inode->i_size >= sizeof(inode->i_block))
                        return 0;