/* * Defines for synchronous PPP/Cisco link level subroutines. * * Copyright (C) 1994 Cronyx Ltd. * Author: Serge Vakulenko, <vak@zebub.msk.su> * * This software is distributed with NO WARRANTIES, not even the implied * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * Authors grant any other persons or organizations permission to use * or modify this software as long as this message is kept with the software, * all derivative works or modified versions. * * Version 1.7, Wed Jun 7 22:12:02 MSD 1995 * * * */ #ifndef _SYNCPPP_H_ #define _SYNCPPP_H_ 1 #ifdef __KERNEL__ struct slcp { u16 state; /* state machine */ u32 magic; /* local magic number */ u_char echoid; /* id of last keepalive echo request */ u_char confid; /* id of last configuration request */ }; struct sipcp { u16 state; /* state machine */ u_char confid; /* id of last configuration request */ }; struct sppp { struct sppp * pp_next; /* next interface in keepalive list */ u32 pp_flags; /* use Cisco protocol instead of PPP */ u16 pp_alivecnt; /* keepalive packets counter */ u16 pp_loopcnt; /* loopback detection counter */ u32 pp_seq; /* local sequence number */ u32 pp_rseq; /* remote sequence number */ struct slcp lcp; /* LCP params */ struct sipcp ipcp; /* IPCP params */ u32 ibytes,obytes; /* Bytes in/out */ u32 ipkts,opkts; /* Packets in/out */ struct timer_list pp_timer; struct net_device *pp_if; char pp_link_state; /* Link status */ spinlock_t lock; }; struct ppp_device { struct net_device *dev; /* Network device pointer */ struct sppp sppp; /* Synchronous PPP */ }; static inline struct sppp *sppp_of(struct net_device *dev) { struct ppp_device **ppp = dev->priv; BUG_ON((*ppp)->dev != dev); return &(*ppp)->sppp; } #define PP_KEEPALIVE 0x01 /* use keepalive protocol */ #define PP_CISCO 0x02 /* use Cisco protocol instead of PPP */ #define PP_TIMO 0x04 /* cp_timeout routine active */ #define PP_DEBUG 0x08 #define PPP_MTU 1500 /* max. transmit unit */ #define LCP_STATE_CLOSED 0 /* LCP state: closed (conf-req sent) */ #define LCP_STATE_ACK_RCVD 1 /* LCP state: conf-ack received */ #define LCP_STATE_ACK_SENT 2 /* LCP state: conf-ack sent */ #define LCP_STATE_OPENED 3 /* LCP state: opened */ #define IPCP_STATE_CLOSED 0 /* IPCP state: closed (conf-req sent) */ #define IPCP_STATE_ACK_RCVD 1 /* IPCP state: conf-ack received */ #define IPCP_STATE_ACK_SENT 2 /* IPCP state: conf-ack sent */ #define IPCP_STATE_OPENED 3 /* IPCP state: opened */ #define SPPP_LINK_DOWN 0 /* link down - no keepalive */ #define SPPP_LINK_UP 1 /* link is up - keepalive ok */ void sppp_attach (struct ppp_device *pd); void sppp_detach (struct net_device *dev); int sppp_do_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd); struct sk_buff *sppp_dequeue (struct net_device *dev); int sppp_isempty (struct net_device *dev); void sppp_flush (struct net_device *dev); int sppp_open (struct net_device *dev); int sppp_reopen (struct net_device *dev); int sppp_close (struct net_device *dev); #endif #define SPPPIOCCISCO (SIOCDEVPRIVATE) #define SPPPIOCPPP (SIOCDEVPRIVATE+1) #define SPPPIOCDEBUG (SIOCDEVPRIVATE+2) #define SPPPIOCSFLAGS (SIOCDEVPRIVATE+3) #define SPPPIOCGFLAGS (SIOCDEVPRIVATE+4) #endif /* _SYNCPPP_H_ */