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71 lines
2.6 KiB
C
71 lines
2.6 KiB
C
/*
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* Defines for synchronous PPP/Cisco link level subroutines.
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*
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* Copyright (C) 1994 Cronyx Ltd.
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* Author: Serge Vakulenko, <vak@zebub.msk.su>
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*
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* This software is distributed with NO WARRANTIES, not even the implied
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* warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* Authors grant any other persons or organisations permission to use
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* or modify this software as long as this message is kept with the software,
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* all derivative works or modified versions.
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*
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* Version 1.1, Thu Oct 27 21:15:02 MSK 1994
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*/
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#ifndef _NET_IF_HDLC_H_
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#define _NET_IF_HDLC_H_ 1
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struct slcp {
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u_short state; /* state machine */
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u_long magic; /* local magic number */
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u_long rmagic; /* remote magic number */
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u_char lastid; /* id of last keepalive echo request */
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};
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struct sipcp {
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u_short state; /* state machine */
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};
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struct sppp {
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struct ifnet pp_if; /* network interface data */
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struct ifqueue pp_fastq; /* fast output queue */
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struct sppp *pp_next; /* next interface in keepalive list */
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u_int pp_flags; /* use Cisco protocol instead of PPP */
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u_short pp_alivecnt; /* keepalive packets counter */
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u_short pp_loopcnt; /* loopback detection counter */
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u_long pp_seq; /* local sequence number */
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u_long pp_rseq; /* remote sequence number */
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struct slcp lcp; /* LCP params */
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struct sipcp ipcp; /* IPCP params */
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};
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#define PP_KEEPALIVE 0x01 /* use keepalive protocol */
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#define PP_CISCO 0x02 /* use Cisco protocol instead of PPP */
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#define PP_MTU 1500 /* max. transmit unit */
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#define LCP_STATE_CLOSED 0 /* LCP state: closed (conf-req sent) */
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#define LCP_STATE_ACK_RCVD 1 /* LCP state: conf-ack received */
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#define LCP_STATE_ACK_SENT 2 /* LCP state: conf-ack sent */
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#define LCP_STATE_OPENED 3 /* LCP state: opened */
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#define IPCP_STATE_CLOSED 0 /* IPCP state: closed (conf-req sent) */
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#define IPCP_STATE_ACK_RCVD 1 /* IPCP state: conf-ack received */
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#define IPCP_STATE_ACK_SENT 2 /* IPCP state: conf-ack sent */
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#define IPCP_STATE_OPENED 3 /* IPCP state: opened */
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#ifdef KERNEL
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void sppp_attach (struct ifnet *ifp);
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void sppp_detach (struct ifnet *ifp);
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void sppp_input (struct ifnet *ifp, struct mbuf *m);
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int sppp_output (struct ifnet *ifp, struct mbuf *m, struct sockaddr *dst,
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struct rtentry *rt);
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int sppp_ioctl (struct ifnet *ifp, int cmd, caddr_t data);
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struct mbuf *sppp_dequeue (struct ifnet *ifp);
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void sppp_flush (struct ifnet *ifp);
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#endif
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#endif /* _NET_IF_HDLC_H_ */
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