smbd: assert fsp->fsp_flags.posix_append and offset in smbd_smb2_write_send()

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

diff --git a/source3/smbd/smb2_write.c b/source3/smbd/smb2_write.c
index 4db146caad54eecd4b8cb288a6145f1dfb28791b..87f6640a0857030cfde2b102bfadb08f9555fdf9 100644 (file)
--- a/source3/smbd/smb2_write.c
+++ b/source3/smbd/smb2_write.c
@@ -346,6 +346,18 @@ static struct tevent_req *smbd_smb2_write_send(TALLOC_CTX *mem_ctx,
                return tevent_req_post(req, ev);
        }
 
+       if (state->in_offset == VFS_PWRITE_APPEND_OFFSET &&
+           !fsp->fsp_flags.posix_append)
+       {
+               tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+               return tevent_req_post(req, ev);
+       } else if (fsp->fsp_flags.posix_append &&
+                  state->in_offset != VFS_PWRITE_APPEND_OFFSET)
+       {
+               tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+               return tevent_req_post(req, ev);
+       }
+
        /* Try and do an asynchronous write. */
        status = schedule_aio_smb2_write(conn,
                                        smbreq,