/***
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*
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* include/rtmac/rtmac_proto.h
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*
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* rtmac - real-time networking media access control subsystem
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* Copyright (C) 2002 Marc Kleine-Budde <kleine-budde@gmx.de>,
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* 2003, 2004 Jan Kiszka <Jan.Kiszka@web.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#ifndef __RTMAC_PROTO_H_
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#define __RTMAC_PROTO_H_
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#include <stack_mgr.h>
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#define RTMAC_VERSION 0x02
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#define ETH_RTMAC 0x9021
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#define RTMAC_FLAG_TUNNEL 0x01
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struct rtmac_hdr {
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u16 type;
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u8 ver;
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u8 flags;
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} __attribute__((packed));
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static inline int rtmac_add_header(struct rtnet_device *rtdev, void *daddr,
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struct rtskb *skb, u16 type, u8 flags)
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{
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struct rtmac_hdr *hdr =
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(struct rtmac_hdr *)rtskb_push(skb, sizeof(struct rtmac_hdr));
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hdr->type = htons(type);
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hdr->ver = RTMAC_VERSION;
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hdr->flags = flags;
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skb->rtdev = rtdev;
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if (rtdev->hard_header &&
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(rtdev->hard_header(skb, rtdev, ETH_RTMAC, daddr, rtdev->dev_addr,
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skb->len) < 0))
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return -1;
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return 0;
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}
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static inline int rtmac_xmit(struct rtskb *skb)
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{
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struct rtnet_device *rtdev = skb->rtdev;
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int ret;
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ret = rtdev->hard_start_xmit(skb, rtdev);
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if (ret != 0)
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kfree_rtskb(skb);
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return ret;
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}
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extern struct rtpacket_type rtmac_packet_type;
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#define rtmac_proto_init() rtdev_add_pack(&rtmac_packet_type)
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void rtmac_proto_release(void);
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#endif /* __RTMAC_PROTO_H_ */
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