Initial revision

diff --git a/include/net/ppp_defs.h b/include/net/ppp_defs.h
new file mode 100644 (file)
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+++ b/include/net/ppp_defs.h
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+/*     $Id: ppp_defs.h,v 1.1 1994/09/19 04:18:43 paulus Exp $  */
+
+/*
+ * ppp_defs.h - PPP definitions.
+ *
+ * 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.
+ */
+
+/*
+ * The basic PPP frame.
+ */
+#define PPP_HDRLEN     4       /* octets for standard ppp header */
+#define PPP_FCSLEN     2       /* octets for FCS */
+#define PPP_MRU                1500    /* default MRU = max length of info field */
+
+#define PPP_ADDRESS(p) (((u_char *)(p))[0])
+#define PPP_CONTROL(p) (((u_char *)(p))[1])
+#define PPP_PROTOCOL(p)        ((((u_char *)(p))[2] << 8) + ((u_char *)(p))[3])
+
+/*
+ * Significant octet values.
+ */
+#define        PPP_ALLSTATIONS 0xff    /* All-Stations broadcast address */
+#define        PPP_UI          0x03    /* Unnumbered Information */
+#define        PPP_FLAG        0x7e    /* Flag Sequence */
+#define        PPP_ESCAPE      0x7d    /* Asynchronous Control Escape */
+#define        PPP_TRANS       0x20    /* Asynchronous transparency modifier */
+
+/*
+ * Protocol field values.
+ */
+#define PPP_IP         0x21    /* Internet Protocol */
+#define        PPP_VJC_COMP    0x2d    /* VJ compressed TCP */
+#define        PPP_VJC_UNCOMP  0x2f    /* VJ uncompressed TCP */
+#define PPP_COMP       0xfd    /* compressed packet */
+#define PPP_LCP                0xc021  /* Link Control Protocol */
+#define PPP_CCP                0x80fd  /* Compression Control Protocol */
+
+/*
+ * Values for FCS calculations.
+ */
+#define PPP_INITFCS    0xffff  /* Initial FCS value */
+#define PPP_GOODFCS    0xf0b8  /* Good final FCS value */
+#define PPP_FCS(fcs, c)        (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff])
+
+/*
+ * A 32-bit unsigned integral type.
+ */
+#ifndef __BIT_TYPES_DEFINED__
+#ifdef UINT32_T
+typedef UINT32_T       u_int32_t;
+#else
+typedef unsigned long  u_int32_t;
+#endif
+#endif
+
+/*
+ * Extended asyncmap - allows any character to be escaped.
+ */
+typedef u_int32_t      ext_accm[8];
+
+/*
+ * What to do with network protocol (NP) packets.
+ */
+enum NPmode {
+    NPMODE_PASS,               /* pass the packet through */
+    NPMODE_DROP,               /* silently drop the packet */
+    NPMODE_ERROR,              /* return an error */
+    NPMODE_QUEUE               /* save it up for later. */
+};
+
+/*
+ * Statistics.
+ */
+struct pppstat {
+    u_int      ppp_ibytes;     /* bytes received */
+    u_int      ppp_ipackets;   /* packets received */
+    u_int      ppp_ierrors;    /* receive errors */
+    u_int      ppp_obytes;     /* bytes sent */
+    u_int      ppp_opackets;   /* packets sent */
+    u_int      ppp_oerrors;    /* transmit errors */
+};
+
+struct vjstat {
+    u_int      vjs_packets;    /* outbound packets */
+    u_int      vjs_compressed; /* outbound compressed packets */
+    u_int      vjs_searches;   /* searches for connection state */
+    u_int      vjs_misses;     /* times couldn't find conn. state */
+    u_int      vjs_uncompressedin; /* inbound uncompressed packets */
+    u_int      vjs_compressedin;   /* inbound compressed packets */
+    u_int      vjs_errorin;    /* inbound unknown type packets */
+    u_int      vjs_tossed;     /* inbound packets tossed because of error */
+};
+
+struct compstat {
+    u_int      unc_bytes;      /* total uncompressed bytes */
+    u_int      unc_packets;    /* total uncompressed packets */
+    u_int      comp_bytes;     /* compressed bytes */
+    u_int      comp_packets;   /* compressed packets */
+    u_int      inc_bytes;      /* incompressible bytes */
+    u_int      inc_packets;    /* incompressible packets */
+    double     ratio;          /* recent compression ratio */
+};
+
+struct ppp_stats {
+    struct pppstat     p;      /* basic PPP statistics */
+    struct vjstat      vj;     /* VJ header compression statistics */
+    struct compstat    c;      /* packet compression statistics */
+    struct compstat    d;      /* packet decompression statistics */
+};
+
+#ifndef __P
+#ifdef __STDC__
+#define __P(x) x
+#else
+#define __P(x) ()
+#endif
+#endif