The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netgraph/ng_pptpgre.h

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    1 
    2 /*
    3  * ng_pptpgre.h
    4  *
    5  * Copyright (c) 1999 Whistle Communications, Inc.
    6  * All rights reserved.
    7  * 
    8  * Subject to the following obligations and disclaimer of warranty, use and
    9  * redistribution of this software, in source or object code forms, with or
   10  * without modifications are expressly permitted by Whistle Communications;
   11  * provided, however, that:
   12  * 1. Any and all reproductions of the source or object code must include the
   13  *    copyright notice above and the following disclaimer of warranties; and
   14  * 2. No rights are granted, in any manner or form, to use Whistle
   15  *    Communications, Inc. trademarks, including the mark "WHISTLE
   16  *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
   17  *    such appears in the above copyright notice or in the software.
   18  * 
   19  * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
   20  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
   21  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
   22  * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
   23  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
   24  * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
   25  * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
   26  * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
   27  * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
   28  * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
   29  * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
   30  * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
   31  * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
   32  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   33  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   34  * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
   35  * OF SUCH DAMAGE.
   36  *
   37  * Author: Archie Cobbs <archie@freebsd.org>
   38  *
   39  * $FreeBSD: releng/5.1/sys/netgraph/ng_pptpgre.h 97685 2002-05-31 23:48:03Z archie $
   40  * $Whistle: ng_pptpgre.h,v 1.3 1999/12/08 00:11:36 archie Exp $
   41  */
   42 
   43 #ifndef _NETGRAPH_PPTPGRE_H_
   44 #define _NETGRAPH_PPTPGRE_H_
   45 
   46 /* Node type name and magic cookie */
   47 #define NG_PPTPGRE_NODE_TYPE    "pptpgre"
   48 #define NGM_PPTPGRE_COOKIE      942783547
   49 
   50 /* Hook names */
   51 #define NG_PPTPGRE_HOOK_UPPER   "upper"         /* to upper layers */
   52 #define NG_PPTPGRE_HOOK_LOWER   "lower"         /* to lower layers */
   53 
   54 /* Configuration for a session */
   55 struct ng_pptpgre_conf {
   56         u_char          enabled;        /* enables traffic flow */
   57         u_char          enableDelayedAck;/* enables delayed acks */
   58         u_char          enableAlwaysAck;/* always include ack with data */
   59         u_int16_t       cid;            /* my call id */
   60         u_int16_t       peerCid;        /* peer call id */
   61         u_int16_t       recvWin;        /* peer recv window size */
   62         u_int16_t       peerPpd;        /* peer packet processing delay
   63                                            (in units of 1/10 of a second) */
   64 };
   65 
   66 /* Keep this in sync with the above structure definition */
   67 #define NG_PPTPGRE_CONF_TYPE_INFO       {                       \
   68           { "enabled",          &ng_parse_uint8_type    },      \
   69           { "enableDelayedAck", &ng_parse_uint8_type    },      \
   70           { "enableAlwaysAck",  &ng_parse_uint8_type    },      \
   71           { "cid",              &ng_parse_hint16_type   },      \
   72           { "peerCid",          &ng_parse_hint16_type   },      \
   73           { "recvWin",          &ng_parse_uint16_type   },      \
   74           { "peerPpd",          &ng_parse_uint16_type   },      \
   75           { NULL }                                              \
   76 }
   77 
   78 /* Statistics struct */
   79 struct ng_pptpgre_stats {
   80         u_int32_t xmitPackets;          /* number of GRE packets xmit */
   81         u_int32_t xmitOctets;           /* number of GRE octets xmit */
   82         u_int32_t xmitLoneAcks;         /* ack-only packets transmitted */
   83         u_int32_t xmitDrops;            /* xmits dropped due to full window */
   84         u_int32_t xmitTooBig;           /* xmits dropped because too big */
   85         u_int32_t recvPackets;          /* number of GRE packets rec'd */
   86         u_int32_t recvOctets;           /* number of GRE octets rec'd */
   87         u_int32_t recvRunts;            /* too short packets rec'd */
   88         u_int32_t recvBadGRE;           /* bogus packets rec'd (bad GRE hdr) */
   89         u_int32_t recvBadAcks;          /* bogus ack's rec'd in GRE header */
   90         u_int32_t recvBadCID;           /* pkts with unknown call ID rec'd */
   91         u_int32_t recvOutOfOrder;       /* packets rec'd out of order */
   92         u_int32_t recvDuplicates;       /* packets rec'd with duplicate seq # */
   93         u_int32_t recvLoneAcks;         /* ack-only packets rec'd */
   94         u_int32_t recvAckTimeouts;      /* times peer failed to ack in time */
   95         u_int32_t memoryFailures;       /* times we couldn't allocate memory */
   96 };
   97 
   98 /* Keep this in sync with the above structure definition */
   99 #define NG_PPTPGRE_STATS_TYPE_INFO      {                       \
  100           { "xmitPackets",      &ng_parse_uint32_type   },      \
  101           { "xmitOctets",       &ng_parse_uint32_type   },      \
  102           { "xmitLoneAcks",     &ng_parse_uint32_type   },      \
  103           { "xmitDrops",        &ng_parse_uint32_type   },      \
  104           { "xmitTooBig",       &ng_parse_uint32_type   },      \
  105           { "recvPackets",      &ng_parse_uint32_type   },      \
  106           { "recvOctets",       &ng_parse_uint32_type   },      \
  107           { "recvRunts",        &ng_parse_uint32_type   },      \
  108           { "recvBadGRE",       &ng_parse_uint32_type   },      \
  109           { "recvBadAcks",      &ng_parse_uint32_type   },      \
  110           { "recvBadCID",       &ng_parse_uint32_type   },      \
  111           { "recvOutOfOrder",   &ng_parse_uint32_type   },      \
  112           { "recvDuplicates",   &ng_parse_uint32_type   },      \
  113           { "recvLoneAcks",     &ng_parse_uint32_type   },      \
  114           { "recvAckTimeouts",  &ng_parse_uint32_type   },      \
  115           { "memoryFailures",   &ng_parse_uint32_type   },      \
  116           { NULL }                                              \
  117 }
  118 
  119 /* Netgraph commands */
  120 enum {
  121         NGM_PPTPGRE_SET_CONFIG = 1,     /* supply a struct ng_pptpgre_conf */
  122         NGM_PPTPGRE_GET_CONFIG,         /* returns a struct ng_pptpgre_conf */
  123         NGM_PPTPGRE_GET_STATS,          /* returns struct ng_pptpgre_stats */
  124         NGM_PPTPGRE_CLR_STATS,          /* clears stats */
  125         NGM_PPTPGRE_GETCLR_STATS,       /* returns & clears stats */
  126 };
  127 
  128 #endif /* _NETGRAPH_PPTPGRE_H_ */

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