The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/netgraph/ng_ppp.h

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    1 /*
    2  * ng_ppp.h
    3  */
    4 
    5 /*-
    6  * Copyright (c) 1996-2000 Whistle Communications, Inc.
    7  * All rights reserved.
    8  * 
    9  * Subject to the following obligations and disclaimer of warranty, use and
   10  * redistribution of this software, in source or object code forms, with or
   11  * without modifications are expressly permitted by Whistle Communications;
   12  * provided, however, that:
   13  * 1. Any and all reproductions of the source or object code must include the
   14  *    copyright notice above and the following disclaimer of warranties; and
   15  * 2. No rights are granted, in any manner or form, to use Whistle
   16  *    Communications, Inc. trademarks, including the mark "WHISTLE
   17  *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
   18  *    such appears in the above copyright notice or in the software.
   19  * 
   20  * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
   21  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
   22  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
   23  * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
   24  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
   25  * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
   26  * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
   27  * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
   28  * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
   29  * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
   30  * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
   31  * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
   32  * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
   33  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   34  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   35  * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
   36  * OF SUCH DAMAGE.
   37  *
   38  * Author: Archie Cobbs <archie@freebsd.org>
   39  *
   40  * $FreeBSD: releng/10.3/sys/netgraph/ng_ppp.h 171688 2007-08-01 20:49:35Z mav $
   41  * $Whistle: ng_ppp.h,v 1.8 1999/01/25 02:40:02 archie Exp $
   42  */
   43 
   44 #ifndef _NETGRAPH_NG_PPP_H_
   45 #define _NETGRAPH_NG_PPP_H_
   46 
   47 /* Node type name and magic cookie */
   48 #define NG_PPP_NODE_TYPE        "ppp"
   49 #define NGM_PPP_COOKIE          940897795
   50 
   51 /* 64bit stats presence flag */
   52 #define NG_PPP_STATS64
   53 
   54 /* Maximum number of supported links */
   55 #define NG_PPP_MAX_LINKS        16
   56 
   57 /* Pseudo-link number representing the multi-link bundle */
   58 #define NG_PPP_BUNDLE_LINKNUM   0xffff
   59 
   60 /* Max allowable link latency (miliseconds) and bandwidth (bytes/second/10) */
   61 #define NG_PPP_MAX_LATENCY      1000            /* 1 second */
   62 #define NG_PPP_MAX_BANDWIDTH    125000          /* 10 Mbits / second */
   63 
   64 /* Hook names */
   65 #define NG_PPP_HOOK_BYPASS      "bypass"        /* unknown protocols */
   66 #define NG_PPP_HOOK_COMPRESS    "compress"      /* outgoing compression */
   67 #define NG_PPP_HOOK_DECOMPRESS  "decompress"    /* incoming decompression */
   68 #define NG_PPP_HOOK_ENCRYPT     "encrypt"       /* outgoing encryption */
   69 #define NG_PPP_HOOK_DECRYPT     "decrypt"       /* incoming decryption */
   70 #define NG_PPP_HOOK_VJC_IP      "vjc_ip"        /* VJC raw IP */
   71 #define NG_PPP_HOOK_VJC_COMP    "vjc_vjcomp"    /* VJC compressed TCP */
   72 #define NG_PPP_HOOK_VJC_UNCOMP  "vjc_vjuncomp"  /* VJC uncompressed TCP */
   73 #define NG_PPP_HOOK_VJC_VJIP    "vjc_vjip"      /* VJC uncompressed IP */
   74 #define NG_PPP_HOOK_INET        "inet"          /* IP packet data */
   75 #define NG_PPP_HOOK_ATALK       "atalk"         /* AppleTalk packet data */
   76 #define NG_PPP_HOOK_IPX         "ipx"           /* IPX packet data */
   77 #define NG_PPP_HOOK_IPV6        "ipv6"          /* IPv6 packet data */
   78 
   79 #define NG_PPP_HOOK_LINK_PREFIX "link"          /* append decimal link number */
   80 
   81 /* Compress hook operation modes */
   82 enum {
   83         NG_PPP_COMPRESS_NONE = 0,       /* compression disabled */
   84         NG_PPP_COMPRESS_SIMPLE,         /* original operation mode */
   85         NG_PPP_COMPRESS_FULL,           /* compressor returns proto */
   86 };
   87 
   88 /* Decompress hook operation modes */
   89 enum {
   90         NG_PPP_DECOMPRESS_NONE = 0,     /* decompression disabled */
   91         NG_PPP_DECOMPRESS_SIMPLE,       /* original operation mode */
   92         NG_PPP_DECOMPRESS_FULL,         /* forward any packet to decompressor */
   93 };
   94 
   95 /* Netgraph commands */
   96 enum {
   97         NGM_PPP_SET_CONFIG = 1,         /* takes struct ng_ppp_node_conf */
   98         NGM_PPP_GET_CONFIG,             /* returns ng_ppp_node_conf */
   99         NGM_PPP_GET_MP_STATE,           /* returns ng_ppp_mp_state */
  100         NGM_PPP_GET_LINK_STATS,         /* takes link #, returns stats struct */
  101         NGM_PPP_CLR_LINK_STATS,         /* takes link #, clears link stats */
  102         NGM_PPP_GETCLR_LINK_STATS,      /* takes link #, returns & clrs stats */
  103         NGM_PPP_GET_LINK_STATS64,       /* takes link #, returns stats64 struct */
  104         NGM_PPP_GETCLR_LINK_STATS64,    /* takes link #, returns stats64 & clrs */
  105 };
  106 
  107 /* Multi-link sequence number state (for debugging) */
  108 struct ng_ppp_mp_state {
  109         int32_t         rseq[NG_PPP_MAX_LINKS]; /* highest rec'd MP seq # */
  110         int32_t         mseq;                   /* min rseq[i] */
  111         int32_t         xseq;                   /* next xmit MP seq # */
  112 };
  113 
  114 /* Keep this in sync with the above structure definition */
  115 #define NG_PPP_MP_STATE_TYPE_INFO(atype)        {               \
  116           { "rseq",     (atype)                 },              \
  117           { "mseq",     &ng_parse_hint32_type   },              \
  118           { "xseq",     &ng_parse_hint32_type   },              \
  119           { NULL }                                              \
  120 }
  121 
  122 /* Per-link config structure */
  123 struct ng_ppp_link_conf {
  124         u_char          enableLink;     /* enable this link */
  125         u_char          enableProtoComp;/* enable protocol field compression */
  126         u_char          enableACFComp;  /* enable addr/ctrl field compression */
  127         u_int16_t       mru;            /* peer MRU */
  128         u_int32_t       latency;        /* link latency (in milliseconds) */
  129         u_int32_t       bandwidth;      /* link bandwidth (in bytes/sec/10) */
  130 };
  131 
  132 /* Keep this in sync with the above structure definition */
  133 #define NG_PPP_LINK_TYPE_INFO   {                               \
  134           { "enableLink",       &ng_parse_uint8_type    },      \
  135           { "enableProtoComp",  &ng_parse_uint8_type    },      \
  136           { "enableACFComp",    &ng_parse_uint8_type    },      \
  137           { "mru",              &ng_parse_uint16_type   },      \
  138           { "latency",          &ng_parse_uint32_type   },      \
  139           { "bandwidth",        &ng_parse_uint32_type   },      \
  140           { NULL }                                              \
  141 }
  142 
  143 /* Bundle config structure */
  144 struct ng_ppp_bund_conf {
  145         u_int16_t       mrru;                   /* multilink peer MRRU */
  146         u_char          enableMultilink;        /* enable multilink */
  147         u_char          recvShortSeq;           /* recv multilink short seq # */
  148         u_char          xmitShortSeq;           /* xmit multilink short seq # */
  149         u_char          enableRoundRobin;       /* xmit whole packets */
  150         u_char          enableIP;               /* enable IP data flow */
  151         u_char          enableIPv6;             /* enable IPv6 data flow */
  152         u_char          enableAtalk;            /* enable AppleTalk data flow */
  153         u_char          enableIPX;              /* enable IPX data flow */
  154         u_char          enableCompression;      /* enable PPP compression */
  155         u_char          enableDecompression;    /* enable PPP decompression */
  156         u_char          enableEncryption;       /* enable PPP encryption */
  157         u_char          enableDecryption;       /* enable PPP decryption */
  158         u_char          enableVJCompression;    /* enable VJ compression */
  159         u_char          enableVJDecompression;  /* enable VJ decompression */
  160 };
  161 
  162 /* Keep this in sync with the above structure definition */
  163 #define NG_PPP_BUND_TYPE_INFO   {                                       \
  164           { "mrru",                     &ng_parse_uint16_type   },      \
  165           { "enableMultilink",          &ng_parse_uint8_type    },      \
  166           { "recvShortSeq",             &ng_parse_uint8_type    },      \
  167           { "xmitShortSeq",             &ng_parse_uint8_type    },      \
  168           { "enableRoundRobin",         &ng_parse_uint8_type    },      \
  169           { "enableIP",                 &ng_parse_uint8_type    },      \
  170           { "enableIPv6",               &ng_parse_uint8_type    },      \
  171           { "enableAtalk",              &ng_parse_uint8_type    },      \
  172           { "enableIPX",                &ng_parse_uint8_type    },      \
  173           { "enableCompression",        &ng_parse_uint8_type    },      \
  174           { "enableDecompression",      &ng_parse_uint8_type    },      \
  175           { "enableEncryption",         &ng_parse_uint8_type    },      \
  176           { "enableDecryption",         &ng_parse_uint8_type    },      \
  177           { "enableVJCompression",      &ng_parse_uint8_type    },      \
  178           { "enableVJDecompression",    &ng_parse_uint8_type    },      \
  179           { NULL }                                                      \
  180 }
  181 
  182 /* Total node config structure */
  183 struct ng_ppp_node_conf {
  184         struct ng_ppp_bund_conf bund;
  185         struct ng_ppp_link_conf links[NG_PPP_MAX_LINKS];
  186 };
  187 
  188 /* Keep this in sync with the above structure definition */
  189 #define NG_PPP_CONFIG_TYPE_INFO(bctype, arytype)        {       \
  190           { "bund",             (bctype)        },              \
  191           { "links",            (arytype)       },              \
  192           { NULL }                                              \
  193 }
  194 
  195 /* Statistics struct for a link (or the bundle if NG_PPP_BUNDLE_LINKNUM) */
  196 struct ng_ppp_link_stat {
  197         u_int32_t xmitFrames;           /* xmit frames on link */
  198         u_int32_t xmitOctets;           /* xmit octets on link */
  199         u_int32_t recvFrames;           /* recv frames on link */
  200         u_int32_t recvOctets;           /* recv octets on link */
  201         u_int32_t badProtos;            /* frames rec'd with bogus protocol */
  202         u_int32_t runts;                /* Too short MP fragments */
  203         u_int32_t dupFragments;         /* MP frames with duplicate seq # */
  204         u_int32_t dropFragments;        /* MP fragments we had to drop */
  205 };
  206 
  207 /* Keep this in sync with the above structure definition */
  208 #define NG_PPP_STATS_TYPE_INFO  {                               \
  209           { "xmitFrames",       &ng_parse_uint32_type   },      \
  210           { "xmitOctets",       &ng_parse_uint32_type   },      \
  211           { "recvFrames",       &ng_parse_uint32_type   },      \
  212           { "recvOctets",       &ng_parse_uint32_type   },      \
  213           { "badProtos",        &ng_parse_uint32_type   },      \
  214           { "runts",            &ng_parse_uint32_type   },      \
  215           { "dupFragments",     &ng_parse_uint32_type   },      \
  216           { "dropFragments",    &ng_parse_uint32_type   },      \
  217           { NULL }                                              \
  218 }
  219 
  220 /* Statistics struct for a link (or the bundle if NG_PPP_BUNDLE_LINKNUM) */
  221 struct ng_ppp_link_stat64 {
  222         u_int64_t xmitFrames;           /* xmit frames on link */
  223         u_int64_t xmitOctets;           /* xmit octets on link */
  224         u_int64_t recvFrames;           /* recv frames on link */
  225         u_int64_t recvOctets;           /* recv octets on link */
  226         u_int64_t badProtos;            /* frames rec'd with bogus protocol */
  227         u_int64_t runts;                /* Too short MP fragments */
  228         u_int64_t dupFragments;         /* MP frames with duplicate seq # */
  229         u_int64_t dropFragments;        /* MP fragments we had to drop */
  230 };
  231 
  232 /* Keep this in sync with the above structure definition */
  233 #define NG_PPP_STATS64_TYPE_INFO        {                       \
  234           { "xmitFrames",       &ng_parse_uint64_type   },      \
  235           { "xmitOctets",       &ng_parse_uint64_type   },      \
  236           { "recvFrames",       &ng_parse_uint64_type   },      \
  237           { "recvOctets",       &ng_parse_uint64_type   },      \
  238           { "badProtos",        &ng_parse_uint64_type   },      \
  239           { "runts",            &ng_parse_uint64_type   },      \
  240           { "dupFragments",     &ng_parse_uint64_type   },      \
  241           { "dropFragments",    &ng_parse_uint64_type   },      \
  242           { NULL }                                              \
  243 }
  244 
  245 #endif /* _NETGRAPH_NG_PPP_H_ */

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