From 5fb27814ad5566b264acf0f014d1721afc39b176 Mon Sep 17 00:00:00 2001 From: Jeremy Allison Date: Tue, 7 Jun 2011 16:55:20 -0700 Subject: Part 3 of bugfix for #8211 - "inherit owner = yes" doesn't interact correctly with "inherit permissions = yes" and POSIX ACLs When changing ownership on a new file make sure we must have a valid stat struct before making the inheritance calls (as they may look at it), and if we make changes we must have a valid stat struct after them. Autobuild-User: Jeremy Allison Autobuild-Date: Wed Jun 8 03:07:04 CEST 2011 on sn-devel-104 --- source3/smbd/open.c | 60 ++++++++++++++++++++++++++++++++++++++--------------- 1 file changed, 43 insertions(+), 17 deletions(-) (limited to 'source3/smbd/open.c') diff --git a/source3/smbd/open.c b/source3/smbd/open.c index 5bd9684fad..3603a81cff 100644 --- a/source3/smbd/open.c +++ b/source3/smbd/open.c @@ -382,6 +382,7 @@ static NTSTATUS open_file(files_struct *fsp, int accmode = (flags & O_ACCMODE); int local_flags = flags; bool file_existed = VALID_STAT(fsp->fsp_name->st); + bool file_created = false; fsp->fh->fd = -1; errno = EPERM; @@ -481,23 +482,7 @@ static NTSTATUS open_file(files_struct *fsp, } if ((local_flags & O_CREAT) && !file_existed) { - - /* Inherit the ACL if required */ - if (lp_inherit_perms(SNUM(conn))) { - inherit_access_posix_acl(conn, parent_dir, - smb_fname->base_name, - unx_mode); - } - - /* Change the owner if required. */ - if (lp_inherit_owner(SNUM(conn))) { - change_file_owner_to_parent(conn, parent_dir, - fsp); - } - - notify_fname(conn, NOTIFY_ACTION_ADDED, - FILE_NOTIFY_CHANGE_FILE_NAME, - smb_fname->base_name); + file_created = true; } } else { @@ -607,6 +592,47 @@ static NTSTATUS open_file(files_struct *fsp, fd_close(fsp); return status; } + + if (file_created) { + bool need_re_stat = false; + /* Do all inheritance work after we've + done a successful stat call and filled + in the stat struct in fsp->fsp_name. */ + + /* Inherit the ACL if required */ + if (lp_inherit_perms(SNUM(conn))) { + inherit_access_posix_acl(conn, parent_dir, + smb_fname->base_name, + unx_mode); + need_re_stat = true; + } + + /* Change the owner if required. */ + if (lp_inherit_owner(SNUM(conn))) { + change_file_owner_to_parent(conn, parent_dir, + fsp); + need_re_stat = true; + } + + if (need_re_stat) { + if (fsp->fh->fd == -1) { + ret = SMB_VFS_STAT(conn, smb_fname); + } else { + ret = SMB_VFS_FSTAT(fsp, &smb_fname->st); + /* If we have an fd, this stat should succeed. */ + if (ret == -1) { + DEBUG(0,("Error doing fstat on open file %s " + "(%s)\n", + smb_fname_str_dbg(smb_fname), + strerror(errno) )); + } + } + } + + notify_fname(conn, NOTIFY_ACTION_ADDED, + FILE_NOTIFY_CHANGE_FILE_NAME, + smb_fname->base_name); + } } /* -- cgit