--- /dev/null
+/* $Id: if_ppp.h,v 1.1 1994/12/08 01:59:58 paulus Exp $ */
+
+/*
+ * if_ppp.h - Point-to-Point Protocol definitions.
+ *
+ * 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.
+ */
+
+#ifndef _IF_PPP_H_
+#define _IF_PPP_H_
+
+/*
+ * Packet sizes
+ */
+
+#define PPP_MTU 1500 /* Default MTU (size of Info field) */
+#define PPP_MAXMRU 65000 /* Largest MRU we allow */
+#define PPP_NRUNIT 4 /* how many PPP units? */
+#define PPP_VERSION "2.2.0"
+#define PPP_MAGIC 0x5002 /* Magic value for the ppp structure */
+#define PROTO_IPX 0x002b /* protocol numbers */
+
+/*
+ * Bit definitions for flags.
+ */
+
+#define SC_COMP_PROT 0x00000001 /* protocol compression (output) */
+#define SC_COMP_AC 0x00000002 /* header compression (output) */
+#define SC_COMP_TCP 0x00000004 /* TCP (VJ) compression (output) */
+#define SC_NO_TCP_CCID 0x00000008 /* disable VJ connection-id comp. */
+#define SC_REJ_COMP_AC 0x00000010 /* reject adrs/ctrl comp. on input */
+#define SC_REJ_COMP_TCP 0x00000020 /* reject TCP (VJ) comp. on input */
+#define SC_CCP_OPEN 0x00000040 /* Look at CCP packets */
+#define SC_CCP_UP 0x00000080 /* May send/recv compressed packets */
+#define SC_ENABLE_IP 0x00000100 /* IP packets may be exchanged */
+#define SC_COMP_RUN 0x00001000 /* compressor has been inited */
+#define SC_DECOMP_RUN 0x00002000 /* decompressor has been inited */
+#define SC_DEBUG 0x00010000 /* enable debug messages */
+#define SC_LOG_INPKT 0x00020000 /* log contents of good pkts recvd */
+#define SC_LOG_OUTPKT 0x00040000 /* log contents of pkts sent */
+#define SC_LOG_RAWIN 0x00080000 /* log all chars received */
+#define SC_LOG_FLUSH 0x00100000 /* log all chars flushed */
+#define SC_MASK 0x0fffffff /* bits that user can change */
+
+/* state bits */
+#define SC_ESCAPED 0x80000000 /* saw a PPP_ESCAPE */
+#define SC_FLUSH 0x40000000 /* flush input until next PPP_FLAG */
+#define SC_VJ_RESET 0x20000000 /* Need to reset the VJ decompressor */
+#define SC_XMIT_BUSY 0x10000000 /* ppp_write_wakeup is active */
+#define SC_RCV_B7_0 0x01000000 /* have rcvd char with bit 7 = 0 */
+#define SC_RCV_B7_1 0x02000000 /* have rcvd char with bit 7 = 1 */
+#define SC_RCV_EVNP 0x04000000 /* have rcvd char with even parity */
+#define SC_RCV_ODDP 0x08000000 /* have rcvd char with odd parity */
+#define SC_DC_ERROR 0x00400000 /* non-fatal decomp error detected */
+#define SC_DC_FERROR 0x00800000 /* fatal decomp error detected */
+
+/*
+ * Ioctl definitions.
+ */
+
+struct npioctl {
+ int protocol; /* PPP procotol, e.g. PPP_IP */
+ enum NPmode mode;
+};
+
+/* Structure describing a CCP configuration option, for PPPIOCSCOMPRESS */
+struct ppp_option_data {
+ u_char *ptr;
+ u_int length;
+ int transmit;
+};
+
+struct ifpppstatsreq {
+ char ifr__name[IFNAMSIZ]; /* Name of the device */
+ struct ppp_stats *stats_ptr; /* Pointer to stats buffer */
+ struct ppp_stats stats; /* statistic information */
+};
+
+/*
+ * Ioctl definitions.
+ */
+
+#define PPPIOCGFLAGS _IOR('t', 90, int) /* get configuration flags */
+#define PPPIOCSFLAGS _IOW('t', 89, int) /* set configuration flags */
+#define PPPIOCGASYNCMAP _IOR('t', 88, int) /* get async map */
+#define PPPIOCSASYNCMAP _IOW('t', 87, int) /* set async map */
+#define PPPIOCGUNIT _IOR('t', 86, int) /* get ppp unit number */
+#define PPPIOCGRASYNCMAP _IOR('t', 85, int) /* get receive async map */
+#define PPPIOCSRASYNCMAP _IOW('t', 84, int) /* set receive async map */
+#define PPPIOCGMRU _IOR('t', 83, int) /* get max receive unit */
+#define PPPIOCSMRU _IOW('t', 82, int) /* set max receive unit */
+#define PPPIOCSMAXCID _IOW('t', 81, int) /* set VJ max slot ID */
+#define PPPIOCGXASYNCMAP _IOR('t', 80, ext_accm) /* get extended ACCM */
+#define PPPIOCSXASYNCMAP _IOW('t', 79, ext_accm) /* set extended ACCM */
+#define PPPIOCXFERUNIT _IO('t', 78) /* transfer PPP unit */
+#define PPPIOCSCOMPRESS _IOW('t', 77, struct ppp_option_data)
+#define PPPIOCGNPMODE _IOWR('t', 76, struct npioctl) /* get NP mode */
+#define PPPIOCSNPMODE _IOW('t', 75, struct npioctl) /* set NP mode */
+
+#define PPPIOCGDEBUG _IOR('t', 65, int) /* Read debug level */
+#define PPPIOCSDEBUG _IOW('t', 64, int) /* Set debug level */
+#define PPPIOCGTIME _IOR('t', 63, struct ppp_ddinfo) /* Read time info */
+
+#define SIOCGPPPSTATS (SIOCDEVPRIVATE + 0)
+#define SIOCGPPPVER (SIOCDEVPRIVATE + 1)
+
+#if !defined(ifr_mtu)
+#define ifr_mtu ifr_ifru.ifru_metric
+#endif
+
+#endif /* _IF_PPP_H_ */
--- /dev/null
+/* $Id: if_pppvar.h,v 1.1 1994/12/08 01:59:58 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.
+ */
+
+/*
+ * Supported network protocols. These values are used for
+ * indexing sc_npmode.
+ */
+
+#define NP_IP 0 /* Internet Protocol */
+#define NUM_NP 1 /* Number of NPs. */
+
+/*
+ * Buffers for the PPP process have the following structure
+ */
+
+#define RBUFSIZE 2048 /* MUST be a power of 2 and be <= 4095 */
+struct ppp_buffer {
+ int size; /* Size of the buffer area */
+ int count; /* Count of characters in bufr */
+ int head; /* index to head of list */
+ int tail; /* index to tail of list */
+ int locked; /* Buffer is being sent */
+ int type; /* Type of the buffer */
+ /* =0, device read buffer */
+ /* =1, device write buffer */
+ /* =2, daemon write buffer */
+ /* =3, daemon read buffer */
+ unsigned short fcs; /* Frame Check Sequence (CRC) */
+};
+
+/* Given a pointer to the ppp_buffer then return base address of buffer */
+#define buf_base(buf) ((u_char *) (&buf[1]))
+
+/*
+ * Structure describing each ppp unit.
+ */
+
+struct ppp {
+ int magic; /* magic value for structure */
+
+ /* Bitmapped flag fields. */
+ char inuse; /* are we allocated? */
+ char escape; /* 0x20 if prev char was PPP_ESC*/
+ char toss; /* toss this frame */
+
+ unsigned int flags; /* miscellany */
+
+ ext_accm xmit_async_map; /* 1 bit means that given control
+ character is quoted on output*/
+
+ unsigned long recv_async_map; /* 1 bit means that given control
+ character is ignored on input*/
+ int mtu; /* maximum xmit frame size */
+ int mru; /* maximum receive frame size */
+
+ /* Information about the current tty data */
+ int line; /* PPP channel number */
+ struct tty_struct *tty; /* ptr to TTY structure */
+ int bytes_sent; /* Bytes sent on frame */
+ int bytes_rcvd; /* Bytes recvd on frame */
+
+ /* Interface to the network layer */
+ struct device *dev; /* easy for intr handling */
+
+ /* VJ Header compression data */
+ struct slcompress *slcomp;/* for header compression */
+
+ /* Transmission information */
+ struct ppp_buffer *xbuf; /* Buffer currently being sent */
+ struct ppp_buffer *s1buf; /* Pointer to daemon buffer */
+ struct ppp_buffer *s2buf; /* Pointer to device buffer */
+
+ unsigned long last_xmit; /* time of last transmission */
+
+ /* These are pointers to the malloc()ed frame buffers.
+ These buffers are used while processing a packet. If a packet
+ has to hang around for the user process to read it, it lingers in
+ the user buffers below. */
+
+ struct ppp_buffer *wbuf; /* Transmission information */
+ struct ppp_buffer *tbuf; /* daemon transmission buffer */
+ struct ppp_buffer *rbuf; /* Receive information */
+ struct ppp_buffer *ubuf; /* User buffer information */
+ struct ppp_buffer *cbuf; /* compression buffer */
+
+ /* Queues for select() functionality */
+ struct wait_queue *write_wait; /* queue for reading processes */
+ struct wait_queue *read_wait; /* queue for writing processes */
+
+ /* Statistic information */
+ struct pppstat p; /* statistic information */
+ struct ppp_ddinfo ddinfo; /* demand dial information */
+
+ /* PPP compression protocol information */
+ u_int sc_bytessent; /* count of octets sent */
+ u_int sc_bytesrcvd; /* count of octets received */
+ enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */
+ 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 */
+};
--- /dev/null
+/* $Id: if_ppp.h,v 1.1 1994/12/08 01:59:58 paulus Exp $ */
+
+/*
+ * if_ppp.h - Point-to-Point Protocol definitions.
+ *
+ * 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.
+ */
+
+#ifndef _IF_PPP_H_
+#define _IF_PPP_H_
+
+/*
+ * Packet sizes
+ */
+
+#define PPP_MTU 1500 /* Default MTU (size of Info field) */
+#define PPP_MAXMRU 65000 /* Largest MRU we allow */
+#define PPP_NRUNIT 4 /* how many PPP units? */
+#define PPP_VERSION "2.2.0"
+#define PPP_MAGIC 0x5002 /* Magic value for the ppp structure */
+#define PROTO_IPX 0x002b /* protocol numbers */
+
+/*
+ * Bit definitions for flags.
+ */
+
+#define SC_COMP_PROT 0x00000001 /* protocol compression (output) */
+#define SC_COMP_AC 0x00000002 /* header compression (output) */
+#define SC_COMP_TCP 0x00000004 /* TCP (VJ) compression (output) */
+#define SC_NO_TCP_CCID 0x00000008 /* disable VJ connection-id comp. */
+#define SC_REJ_COMP_AC 0x00000010 /* reject adrs/ctrl comp. on input */
+#define SC_REJ_COMP_TCP 0x00000020 /* reject TCP (VJ) comp. on input */
+#define SC_CCP_OPEN 0x00000040 /* Look at CCP packets */
+#define SC_CCP_UP 0x00000080 /* May send/recv compressed packets */
+#define SC_ENABLE_IP 0x00000100 /* IP packets may be exchanged */
+#define SC_COMP_RUN 0x00001000 /* compressor has been inited */
+#define SC_DECOMP_RUN 0x00002000 /* decompressor has been inited */
+#define SC_DEBUG 0x00010000 /* enable debug messages */
+#define SC_LOG_INPKT 0x00020000 /* log contents of good pkts recvd */
+#define SC_LOG_OUTPKT 0x00040000 /* log contents of pkts sent */
+#define SC_LOG_RAWIN 0x00080000 /* log all chars received */
+#define SC_LOG_FLUSH 0x00100000 /* log all chars flushed */
+#define SC_MASK 0x0fffffff /* bits that user can change */
+
+/* state bits */
+#define SC_ESCAPED 0x80000000 /* saw a PPP_ESCAPE */
+#define SC_FLUSH 0x40000000 /* flush input until next PPP_FLAG */
+#define SC_VJ_RESET 0x20000000 /* Need to reset the VJ decompressor */
+#define SC_XMIT_BUSY 0x10000000 /* ppp_write_wakeup is active */
+#define SC_RCV_B7_0 0x01000000 /* have rcvd char with bit 7 = 0 */
+#define SC_RCV_B7_1 0x02000000 /* have rcvd char with bit 7 = 1 */
+#define SC_RCV_EVNP 0x04000000 /* have rcvd char with even parity */
+#define SC_RCV_ODDP 0x08000000 /* have rcvd char with odd parity */
+#define SC_DC_ERROR 0x00400000 /* non-fatal decomp error detected */
+#define SC_DC_FERROR 0x00800000 /* fatal decomp error detected */
+
+/*
+ * Ioctl definitions.
+ */
+
+struct npioctl {
+ int protocol; /* PPP procotol, e.g. PPP_IP */
+ enum NPmode mode;
+};
+
+/* Structure describing a CCP configuration option, for PPPIOCSCOMPRESS */
+struct ppp_option_data {
+ u_char *ptr;
+ u_int length;
+ int transmit;
+};
+
+struct ifpppstatsreq {
+ char ifr__name[IFNAMSIZ]; /* Name of the device */
+ struct ppp_stats *stats_ptr; /* Pointer to stats buffer */
+ struct ppp_stats stats; /* statistic information */
+};
+
+/*
+ * Ioctl definitions.
+ */
+
+#define PPPIOCGFLAGS _IOR('t', 90, int) /* get configuration flags */
+#define PPPIOCSFLAGS _IOW('t', 89, int) /* set configuration flags */
+#define PPPIOCGASYNCMAP _IOR('t', 88, int) /* get async map */
+#define PPPIOCSASYNCMAP _IOW('t', 87, int) /* set async map */
+#define PPPIOCGUNIT _IOR('t', 86, int) /* get ppp unit number */
+#define PPPIOCGRASYNCMAP _IOR('t', 85, int) /* get receive async map */
+#define PPPIOCSRASYNCMAP _IOW('t', 84, int) /* set receive async map */
+#define PPPIOCGMRU _IOR('t', 83, int) /* get max receive unit */
+#define PPPIOCSMRU _IOW('t', 82, int) /* set max receive unit */
+#define PPPIOCSMAXCID _IOW('t', 81, int) /* set VJ max slot ID */
+#define PPPIOCGXASYNCMAP _IOR('t', 80, ext_accm) /* get extended ACCM */
+#define PPPIOCSXASYNCMAP _IOW('t', 79, ext_accm) /* set extended ACCM */
+#define PPPIOCXFERUNIT _IO('t', 78) /* transfer PPP unit */
+#define PPPIOCSCOMPRESS _IOW('t', 77, struct ppp_option_data)
+#define PPPIOCGNPMODE _IOWR('t', 76, struct npioctl) /* get NP mode */
+#define PPPIOCSNPMODE _IOW('t', 75, struct npioctl) /* set NP mode */
+
+#define PPPIOCGDEBUG _IOR('t', 65, int) /* Read debug level */
+#define PPPIOCSDEBUG _IOW('t', 64, int) /* Set debug level */
+#define PPPIOCGTIME _IOR('t', 63, struct ppp_ddinfo) /* Read time info */
+
+#define SIOCGPPPSTATS (SIOCDEVPRIVATE + 0)
+#define SIOCGPPPVER (SIOCDEVPRIVATE + 1)
+
+#if !defined(ifr_mtu)
+#define ifr_mtu ifr_ifru.ifru_metric
+#endif
+
+#endif /* _IF_PPP_H_ */
--- /dev/null
+/* $Id: if_pppvar.h,v 1.1 1994/12/08 01:59:58 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.
+ */
+
+/*
+ * Supported network protocols. These values are used for
+ * indexing sc_npmode.
+ */
+
+#define NP_IP 0 /* Internet Protocol */
+#define NUM_NP 1 /* Number of NPs. */
+
+/*
+ * Buffers for the PPP process have the following structure
+ */
+
+#define RBUFSIZE 2048 /* MUST be a power of 2 and be <= 4095 */
+struct ppp_buffer {
+ int size; /* Size of the buffer area */
+ int count; /* Count of characters in bufr */
+ int head; /* index to head of list */
+ int tail; /* index to tail of list */
+ int locked; /* Buffer is being sent */
+ int type; /* Type of the buffer */
+ /* =0, device read buffer */
+ /* =1, device write buffer */
+ /* =2, daemon write buffer */
+ /* =3, daemon read buffer */
+ unsigned short fcs; /* Frame Check Sequence (CRC) */
+};
+
+/* Given a pointer to the ppp_buffer then return base address of buffer */
+#define buf_base(buf) ((u_char *) (&buf[1]))
+
+/*
+ * Structure describing each ppp unit.
+ */
+
+struct ppp {
+ int magic; /* magic value for structure */
+
+ /* Bitmapped flag fields. */
+ char inuse; /* are we allocated? */
+ char escape; /* 0x20 if prev char was PPP_ESC*/
+ char toss; /* toss this frame */
+
+ unsigned int flags; /* miscellany */
+
+ ext_accm xmit_async_map; /* 1 bit means that given control
+ character is quoted on output*/
+
+ unsigned long recv_async_map; /* 1 bit means that given control
+ character is ignored on input*/
+ int mtu; /* maximum xmit frame size */
+ int mru; /* maximum receive frame size */
+
+ /* Information about the current tty data */
+ int line; /* PPP channel number */
+ struct tty_struct *tty; /* ptr to TTY structure */
+ int bytes_sent; /* Bytes sent on frame */
+ int bytes_rcvd; /* Bytes recvd on frame */
+
+ /* Interface to the network layer */
+ struct device *dev; /* easy for intr handling */
+
+ /* VJ Header compression data */
+ struct slcompress *slcomp;/* for header compression */
+
+ /* Transmission information */
+ struct ppp_buffer *xbuf; /* Buffer currently being sent */
+ struct ppp_buffer *s1buf; /* Pointer to daemon buffer */
+ struct ppp_buffer *s2buf; /* Pointer to device buffer */
+
+ unsigned long last_xmit; /* time of last transmission */
+
+ /* These are pointers to the malloc()ed frame buffers.
+ These buffers are used while processing a packet. If a packet
+ has to hang around for the user process to read it, it lingers in
+ the user buffers below. */
+
+ struct ppp_buffer *wbuf; /* Transmission information */
+ struct ppp_buffer *tbuf; /* daemon transmission buffer */
+ struct ppp_buffer *rbuf; /* Receive information */
+ struct ppp_buffer *ubuf; /* User buffer information */
+ struct ppp_buffer *cbuf; /* compression buffer */
+
+ /* Queues for select() functionality */
+ struct wait_queue *write_wait; /* queue for reading processes */
+ struct wait_queue *read_wait; /* queue for writing processes */
+
+ /* Statistic information */
+ struct pppstat p; /* statistic information */
+ struct ppp_ddinfo ddinfo; /* demand dial information */
+
+ /* PPP compression protocol information */
+ u_int sc_bytessent; /* count of octets sent */
+ u_int sc_bytesrcvd; /* count of octets received */
+ enum NPmode sc_npmode[NUM_NP]; /* what to do with each NP */
+ 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 */
+};
projects / ppp.git / commitdiff