[funini.com] -> [kei@sodan] -> Kernel Reading

root/include/net/syncppp.h

/* [<][>][^][v][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. sppp_of

/*
 * 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 */
        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->ml_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_ */

/* [<][>][^][v][top][bottom][index][help] */

[funini.com] -> [kei@sodan] -> Kernel Reading