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s3: VFS: unityed_media: Fix um_readlinkat() to cope with real directory fsps.

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Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
This commit is contained in:
Jeremy Allison 2021-02-11 11:55:16 -08:00
parent 9077983ff9
commit e884793cf2
1 changed files with 13 additions and 3 deletions
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16
source3/modules/vfs_unityed_media.c
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@ -1322,10 +1322,19 @@ static int um_readlinkat(vfs_handle_struct *handle,
{
int status;
struct smb_filename *client_fname = NULL;
struct smb_filename *full_fname = NULL;
DEBUG(10, ("Entering um_readlinkat\n"));
if (!is_in_media_files(smb_fname->base_name)) {
full_fname = full_path_from_dirfsp_atname(talloc_tos(),
dirfsp,
smb_fname);
if (full_fname == NULL) {
return -1;
}
if (!is_in_media_files(full_fname->base_name)) {
TALLOC_FREE(full_fname);
return SMB_VFS_NEXT_READLINKAT(handle,
dirfsp,
smb_fname,
@ -1334,18 +1343,19 @@ static int um_readlinkat(vfs_handle_struct *handle,
}
status = alloc_get_client_smb_fname(handle, talloc_tos(),
smb_fname, &client_fname);
full_fname, &client_fname);
if (status != 0) {
goto err;
}
status = SMB_VFS_NEXT_READLINKAT(handle,
dirfsp,
handle->conn->cwd_fsp,
client_fname,
buf,
bufsiz);
err:
TALLOC_FREE(full_fname);
TALLOC_FREE(client_fname);
return status;
}