+++ /dev/null
-/* From: if_pppvar.h,v 1.2 1995/06/12 11:36:51 paulus Exp */
-/*
- * if_pppvar.h - private structures and declarations for PPP.
- *
- * Copyright (c) 1994 The Australian National University.
- * All rights reserved.
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation is hereby granted, provided that the above copyright
- * notice appears in all copies. This software is provided without any
- * warranty, express or implied. The Australian National University
- * makes no representations about the suitability of this software for
- * any purpose.
- *
- * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
- * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
- * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
- * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
- * OF SUCH DAMAGE.
- *
- * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
- * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
- * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
- * OR MODIFICATIONS.
- *
- * Copyright (c) 1989 Carnegie Mellon University.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by Carnegie Mellon University. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
-/*
- * ==FILEVERSION 990114==
- *
- * NOTE TO MAINTAINERS:
- * If you modify this file at all, please set the above date.
- * if_pppvar.h is shipped with a PPP distribution as well as with the kernel;
- * if everyone increases the FILEVERSION number above, then scripts
- * can do the right thing when deciding whether to install a new if_pppvar.h
- * file. Don't change the format of that line otherwise, so the
- * installation script can recognize it.
- */
-
-/*
- * Supported network protocols. These values are used for
- * indexing sc_npmode.
- */
-
-#define NP_IP 0 /* Internet Protocol */
-#define NP_IPX 1 /* IPX protocol */
-#define NP_AT 2 /* Appletalk protocol */
-#define NP_IPV6 3 /* Internet Protocol */
-#define NUM_NP 4 /* Number of NPs. */
-
-#define OBUFSIZE 256 /* # chars of output buffering */
-
-/*
- * Structure describing each ppp unit.
- */
-
-struct ppp {
- int magic; /* magic value for structure */
- struct ppp *next; /* unit with next index */
- unsigned long inuse; /* are we allocated? */
- int line; /* network interface unit # */
- __u32 flags; /* miscellaneous control flags */
- int mtu; /* maximum xmit frame size */
- int mru; /* maximum receive frame size */
- struct slcompress *slcomp; /* for TCP header compression */
- struct sk_buff_head xmt_q; /* frames to send from pppd */
- struct sk_buff_head rcv_q; /* frames for pppd to read */
- unsigned long xmit_busy; /* bit 0 set when xmitter busy */
-
- /* Information specific to using ppp on async serial lines. */
- struct tty_struct *tty; /* ptr to TTY structure */
- struct tty_struct *backup_tty; /* TTY to use if tty gets closed */
- __u8 escape; /* 0x20 if prev char was PPP_ESC */
- __u8 toss; /* toss this frame */
- volatile __u8 tty_pushing; /* internal state flag */
- __u32 xmit_async_map[8]; /* 1 bit means that given control
- character is quoted on output*/
- __u32 recv_async_map; /* 1 bit means that given control
- character is ignored on input*/
- __u32 bytes_sent; /* Bytes sent on frame */
- __u32 bytes_rcvd; /* Bytes recvd on frame */
-
- /* Async transmission information */
- struct sk_buff *tpkt; /* frame currently being sent */
- int tpkt_pos; /* how much of it we've done */
- __u16 tfcs; /* FCS so far for it */
- unsigned char *optr; /* where we're up to in sending */
- unsigned char *olim; /* points past last valid char */
-
- /* Async reception information */
- struct sk_buff *rpkt; /* frame currently being rcvd */
- __u16 rfcs; /* FCS so far of rpkt */
-
- /* Queues for select() functionality */
- struct wait_queue *read_wait; /* queue for reading processes */
-
- /* info for detecting idle channels */
- unsigned long last_xmit; /* time of last transmission */
- unsigned long last_recv; /* time last packet received */
-
- /* Statistic information */
- struct pppstat stats; /* statistic information */
-
- /* PPP compression protocol information */
- struct compressor *sc_xcomp; /* transmit compressor */
- void *sc_xc_state; /* transmit compressor state */
- struct compressor *sc_rcomp; /* receive decompressor */
- void *sc_rc_state; /* receive decompressor state */
-
- enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */
- int sc_xfer; /* PID of reserved PPP table */
- char name[8]; /* space for unit name */
- struct device dev; /* net device structure */
- struct enet_statistics estats; /* more detailed stats */
-
- /* tty output buffer */
- unsigned char obuf[OBUFSIZE]; /* buffer for characters to send */
-};
projects / ppp.git / blobdiff