diff options
Diffstat (limited to 'include/net/syncppp.h')
| -rw-r--r-- | include/net/syncppp.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/include/net/syncppp.h b/include/net/syncppp.h new file mode 100644 index 00000000000..614cb6ba564 --- /dev/null +++ b/include/net/syncppp.h @@ -0,0 +1,105 @@ +/* + * 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); +void sppp_input (struct net_device *dev, struct sk_buff *m); +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_ */ |