+++ /dev/null
-/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the License
- * may not be used to create, or enable the creation or redistribution of,
- * unlawful or unlicensed copies of an Apple operating system, or to
- * circumvent, violate, or enable the circumvention or violation of, any
- * terms of an Apple operating system software license agreement.
- *
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
- */
-
-/*
- * Copyright (c) 1988, 1989 Apple Computer, Inc.
- *
- * Modified, March 17, 1997 by Tuyen Nguyen for MacOSX.
- */
-
-#ifndef lint
-/* static char sccsid[] = "@(#)sip.c: 2.0, 1.3; 10/18/93; Copyright 1988-89, Apple Computer, Inc."; */
-#endif /* lint */
-
-/****************************************************************/
-/* */
-/* */
-/* S I P */
-/* System Information Protocol */
-/* */
-/* */
-/****************************************************************/
-
-/* System Information Protocol -- implemented to handle Responder
- * Queries. The queries are ATP requests, but the ATP responses are faked
- * here in a DDP level handler routine. The responder socket is always
- * the 1st socket in the dynamic socket range (128) and it is assumed
- * that the node will be registered on that socket.
- *
- * In A/UX implementation, this implies that /etc/appletalk program will
- * register the node name on socket DDP_SOCKET_1st_DYNAMIC (128).
- */
-
-#include <sys/errno.h>
-#include <sys/types.h>
-#include <sys/param.h>
-#include <machine/spl.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/proc.h>
-#include <sys/filedesc.h>
-#include <sys/fcntl.h>
-#include <sys/mbuf.h>
-#include <sys/ioctl.h>
-#include <sys/malloc.h>
-#include <sys/socket.h>
-#include <sys/socketvar.h>
-
-#include <net/if.h>
-
-#include <netat/sysglue.h> /* nbp.h needs the gbuf definiton */
-#include <netat/appletalk.h>
-#include <netat/ddp.h>
-#include <netat/at_pcb.h>
-#include <netat/at_var.h>
-#include <netat/nbp.h>
-#include <netat/atp.h>
-
-#define SIP_SYSINFO_CMD 1
-#define SIP_DATALINK_CMD 6
-
-#define SIP_GOOD_RESPONSE 0x1
-#define SIP_BAD_RESPONSE 0xff
-
-#define SIP_DRIVER_VERSION 0x0001
-#define SIP_RESPONDER_VERSION 0x0001
-
-typedef struct {
- u_char response;
- u_char unused;
- u_short responder_version;
-} sip_userbytes_t;
-
-void sip_input(
- gbuf_t *mp,
- __unused at_ifaddr_t *ifID)
-{
- /* Packets arriving here are actually ATP packets, but since
- * A/UX only send dummy responses, we're implementing responder as
- * a DDP handler
- */
- register at_ddp_t *ddp;
- register at_atp_t *atp;
- register gbuf_t *tmp;
- u_char *resp;
- sip_userbytes_t ubytes;
-
- ddp = (at_ddp_t *)gbuf_rptr(mp);
-
- /* Make sure the packet we got is an ATP packet */
- if (ddp->type != DDP_ATP) {
- gbuf_freem(mp);
- return;
- }
-
- /* assuming that the whole packet is in one contiguous buffer */
- atp = (at_atp_t *)ddp->data;
-
- switch(UAL_VALUE_NTOH(atp->user_bytes)) {
- case SIP_SYSINFO_CMD :
- /* Sending a response with "AppleTalk driver version" (u_short)
- * followed by 14 zeros will pacify the interpoll.
- * What? You don't understand what it means to send 14 zeroes?
- * Tsk, tsk, look up SIP protocol specs for details!!
- */
- if ((tmp = (gbuf_t *)ddp_growmsg(mp, 16)) == NULL) {
- /* dont have buffers */
- gbuf_freem(mp);
- return;
- }
- if (tmp == mp)
- /* extra space allocated on the same buffer block */
- resp = atp->data;
- else
- resp = (u_char *)gbuf_rptr(tmp);
- bzero(resp, 16);
- *(u_short *)resp = htons(SIP_DRIVER_VERSION);
-
- ubytes.response = SIP_GOOD_RESPONSE;
- ubytes.unused = 0;
- ubytes.responder_version = htons(SIP_RESPONDER_VERSION);
- break;
- case SIP_DATALINK_CMD :
- /* In this case, the magic spell is to send 2 zeroes after
- * the "AppleTalk driver version".
- */
- if ((tmp = (gbuf_t *)ddp_growmsg(mp, 4)) == NULL) {
- /* dont have buffers */
- gbuf_freem(mp);
- return;
- }
- if (tmp == mp)
- /* extra space allocated on the same buffer block */
- resp = atp->data;
- else
- resp = (u_char *)gbuf_rptr(tmp);
- bzero(resp, 16);
- *(u_short *)resp = htons(SIP_DRIVER_VERSION);
-
- ubytes.response = SIP_GOOD_RESPONSE;
- ubytes.unused = 0;
- ubytes.responder_version = htons(SIP_RESPONDER_VERSION);
- break;
- default :
- /* bad request, send a bad command response back */
- ubytes.response = SIP_BAD_RESPONSE;
- ubytes.unused = 0;
- ubytes.responder_version = htons(SIP_RESPONDER_VERSION);
- }
-
- NET_NET(ddp->dst_net, ddp->src_net);
- ddp->dst_node = ddp->src_node;
- ddp->dst_socket = ddp->src_socket;
- UAL_ASSIGN_HTON(atp->user_bytes, &ubytes);
- atp->cmd = ATP_CMD_TRESP;
- atp->eom = 1;
- atp->sts = 0;
- atp->bitmap = 0;
-
- (void)ddp_output(&mp, DDP_SOCKET_1st_DYNAMIC, FALSE);
- return;
-} /* sip_input */
projects / apple / xnu.git / blobdiff