/***
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*
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* include/rtcfg/rtcfg_frame.h
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*
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* Real-Time Configuration Distribution Protocol
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*
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* Copyright (C) 2003 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 __RTCFG_FRAME_H_
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#define __RTCFG_FRAME_H_
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#include <linux/init.h>
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#include <linux/if_packet.h>
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#include <asm/byteorder.h>
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#include <rtcfg/rtcfg_event.h>
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#define ETH_RTCFG 0x9022
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#define RTCFG_SKB_PRIO \
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RTSKB_PRIO_VALUE(QUEUE_MIN_PRIO - 1, RTSKB_DEF_NRT_CHANNEL)
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#define RTCFG_ID_STAGE_1_CFG 0
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#define RTCFG_ID_ANNOUNCE_NEW 1
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#define RTCFG_ID_ANNOUNCE_REPLY 2
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#define RTCFG_ID_STAGE_2_CFG 3
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#define RTCFG_ID_STAGE_2_CFG_FRAG 4
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#define RTCFG_ID_ACK_CFG 5
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#define RTCFG_ID_READY 6
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#define RTCFG_ID_HEARTBEAT 7
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#define RTCFG_ID_DEAD_STATION 8
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#define RTCFG_ADDRSIZE_MAC 0
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#define RTCFG_ADDRSIZE_IP 4
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#define RTCFG_MAX_ADDRSIZE RTCFG_ADDRSIZE_IP
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#define RTCFG_FLAG_STAGE_2_DATA 0
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#define RTCFG_FLAG_READY 1
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#define _RTCFG_FLAG_STAGE_2_DATA (1 << RTCFG_FLAG_STAGE_2_DATA)
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#define _RTCFG_FLAG_READY (1 << RTCFG_FLAG_READY)
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struct rtcfg_frm_head {
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#if defined(__LITTLE_ENDIAN_BITFIELD)
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u8 id : 5;
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u8 version : 3;
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#elif defined(__BIG_ENDIAN_BITFIELD)
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u8 version : 3;
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u8 id : 5;
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#else
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#error unsupported byte order
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#endif
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} __attribute__((packed));
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struct rtcfg_frm_stage_1_cfg {
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struct rtcfg_frm_head head;
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u8 addr_type;
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u8 client_addr[0];
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u8 server_addr[0];
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u8 burstrate;
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u16 cfg_len;
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u8 cfg_data[0];
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} __attribute__((packed));
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struct rtcfg_frm_announce {
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struct rtcfg_frm_head head;
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u8 addr_type;
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u8 addr[0];
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u8 flags;
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u8 burstrate;
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} __attribute__((packed));
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struct rtcfg_frm_stage_2_cfg {
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struct rtcfg_frm_head head;
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u8 flags;
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u32 stations;
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u16 heartbeat_period;
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u32 cfg_len;
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u8 cfg_data[0];
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} __attribute__((packed));
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struct rtcfg_frm_stage_2_cfg_frag {
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struct rtcfg_frm_head head;
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u32 frag_offs;
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u8 cfg_data[0];
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} __attribute__((packed));
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struct rtcfg_frm_ack_cfg {
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struct rtcfg_frm_head head;
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u32 ack_len;
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} __attribute__((packed));
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struct rtcfg_frm_simple {
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struct rtcfg_frm_head head;
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} __attribute__((packed));
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struct rtcfg_frm_dead_station {
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struct rtcfg_frm_head head;
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u8 addr_type;
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u8 logical_addr[0];
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u8 physical_addr[32];
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} __attribute__((packed));
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int rtcfg_send_stage_1(struct rtcfg_connection *conn);
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int rtcfg_send_stage_2(struct rtcfg_connection *conn, int send_data);
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int rtcfg_send_stage_2_frag(struct rtcfg_connection *conn);
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int rtcfg_send_announce_new(int ifindex);
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int rtcfg_send_announce_reply(int ifindex, u8 *dest_mac_addr);
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int rtcfg_send_ack(int ifindex);
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int rtcfg_send_dead_station(struct rtcfg_connection *conn);
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int rtcfg_send_simple_frame(int ifindex, int frame_id, u8 *dest_addr);
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#define rtcfg_send_ready(ifindex) \
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rtcfg_send_simple_frame(ifindex, RTCFG_ID_READY, NULL)
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#define rtcfg_send_heartbeat(ifindex) \
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rtcfg_send_simple_frame(ifindex, RTCFG_ID_HEARTBEAT, \
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device[ifindex].spec.clt.srv_mac_addr)
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int __init rtcfg_init_frames(void);
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void rtcfg_cleanup_frames(void);
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#endif /* __RTCFG_FRAME_H_ */
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