gonzui

    1: /*      $OpenBSD: in.h,v 1.90 2011/07/06 01:57:37 dlg Exp $  */
    2: /*      $NetBSD: in.h,v 1.20 1996/02/13 23:41:47 christos Exp $      */
    3: 
    4: /*
    5:  * Copyright (c) 1982, 1986, 1990, 1993
    6:  *      The Regents of the University of California.  All rights reserved.
    7:  *
    8:  * Redistribution and use in source and binary forms, with or without
    9:  * modification, are permitted provided that the following conditions
   10:  * are met:
   11:  * 1. Redistributions of source code must retain the above copyright
   12:  *    notice, this list of conditions and the following disclaimer.
   13:  * 2. Redistributions in binary form must reproduce the above copyright
   14:  *    notice, this list of conditions and the following disclaimer in the
   15:  *    documentation and/or other materials provided with the distribution.
   16:  * 3. Neither the name of the University nor the names of its contributors
   17:  *    may be used to endorse or promote products derived from this software
   18:  *    without specific prior written permission.
   19:  *
   20:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   21:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   24:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30:  * SUCH DAMAGE.
   31:  *
   32:  *      @(#)in.h     8.3 (Berkeley) 1/3/94
   33:  */
   34: 
   35: /*
   36:  * Constants and structures defined by the internet system,
   37:  * Per RFC 790, September 1981, and numerous additions.
   38:  */
   39: 
   40: #ifndef _NETINET_IN_H_
   41: #define _NETINET_IN_H_
   42: 
   43: /*
   44:  * Protocols
   45:  */
   46: #define IPPROTO_IP              0           /* dummy for IP */
   47: #define IPPROTO_HOPOPTS         IPPROTO_IP     /* Hop-by-hop option header */
   48: #define IPPROTO_ICMP            1         /* control message protocol */
   49: #define IPPROTO_IGMP            2         /* group mgmt protocol */
   50: #define IPPROTO_GGP             3          /* gateway^2 (deprecated) */
   51: #define IPPROTO_IPIP            4         /* IP inside IP */
   52: #define IPPROTO_IPV4            IPPROTO_IPIP      /* IP inside IP */
   53: #define IPPROTO_TCP             6          /* tcp */
   54: #define IPPROTO_EGP             8          /* exterior gateway protocol */
   55: #define IPPROTO_PUP             12         /* pup */
   56: #define IPPROTO_UDP             17         /* user datagram protocol */
   57: #define IPPROTO_IDP             22         /* xns idp */
   58: #define IPPROTO_TP              29          /* tp-4 w/ class negotiation */
   59: #define IPPROTO_IPV6            41                /* IPv6 in IPv6 */
   60: #define IPPROTO_ROUTING         43             /* Routing header */
   61: #define IPPROTO_FRAGMENT        44             /* Fragmentation/reassembly header */
   62: #define IPPROTO_RSVP            46                /* resource reservation */
   63: #define IPPROTO_GRE             47         /* GRE encap, RFCs 1701/1702 */
   64: #define IPPROTO_ESP             50         /* Encap. Security Payload */
   65: #define IPPROTO_AH              51          /* Authentication header */
   66: #define IPPROTO_MOBILE          55              /* IP Mobility, RFC 2004 */
   67: #define IPPROTO_ICMPV6          58              /* ICMP for IPv6 */
   68: #define IPPROTO_NONE            59                /* No next header */
   69: #define IPPROTO_DSTOPTS         60             /* Destination options header */
   70: #define IPPROTO_EON             80         /* ISO cnlp */
   71: #define IPPROTO_ETHERIP         97             /* Ethernet in IPv4 */
   72: #define IPPROTO_ENCAP           98               /* encapsulation header */
   73: #define IPPROTO_PIM             103                /* Protocol indep. multicast */
   74: #define IPPROTO_IPCOMP          108             /* IP Payload Comp. Protocol */
   75: #define IPPROTO_CARP            112               /* CARP */
   76: #define IPPROTO_MPLS            137               /* unicast MPLS packet */
   77: #define IPPROTO_PFSYNC          240             /* PFSYNC */
   78: #define IPPROTO_RAW             255                /* raw IP packet */
   79: 
   80: #define IPPROTO_MAX             256
   81: 
   82: /* Only used internally, so it can be outside the range of valid IP protocols */
   83: #define IPPROTO_DIVERT          258             /* Divert sockets */
   84: 
   85: 
   86: /*
   87:  * From FreeBSD:
   88:  *
   89:  * Local port number conventions:
   90:  *
   91:  * When a user does a bind(2) or connect(2) with a port number of zero,
   92:  * a non-conflicting local port address is chosen.
   93:  * The default range is IPPORT_RESERVED through
   94:  * IPPORT_USERRESERVED, although that is settable by sysctl.
   95:  *
   96:  * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
   97:  * default assignment range.
   98:  *
   99:  * The value IP_PORTRANGE_DEFAULT causes the default behavior.
  100:  *
  101:  * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers
  102:  * into the "high" range.  These are reserved for client outbound connections
  103:  * which do not want to be filtered by any firewalls.
  104:  *
  105:  * The value IP_PORTRANGE_LOW changes the range to the "low" are
  106:  * that is (by convention) restricted to privileged processes.  This
  107:  * convention is based on "vouchsafe" principles only.  It is only secure
  108:  * if you trust the remote host to restrict these ports.
  109:  *
  110:  * The default range of ports and the high range can be changed by
  111:  * sysctl(3).  (net.inet.ip.port{hi}{first,last})
  112:  *
  113:  * Changing those values has bad security implications if you are
  114:  * using a a stateless firewall that is allowing packets outside of that
  115:  * range in order to allow transparent outgoing connections.
  116:  *
  117:  * Such a firewall configuration will generally depend on the use of these
  118:  * default values.  If you change them, you may find your Security
  119:  * Administrator looking for you with a heavy object.
  120:  */
  121: 
  122: /*
  123:  * Ports < IPPORT_RESERVED are reserved for
  124:  * privileged processes (e.g. root).
  125:  * Ports > IPPORT_USERRESERVED are reserved
  126:  * for servers, not necessarily privileged.
  127:  */
  128: #define IPPORT_RESERVED         1024
  129: #define IPPORT_USERRESERVED     49151
  130: 
  131: /*
  132:  * Default local port range to use by setting IP_PORTRANGE_HIGH
  133:  */
  134: #define IPPORT_HIFIRSTAUTO      49152
  135: #define IPPORT_HILASTAUTO       65535
  136: 
  137: /*
  138:  * IP Version 4 Internet address (a structure for historical reasons)
  139:  */
  140: struct in_addr {
  141:         in_addr_t s_addr;
  142: };
  143: 
  144: /* last return value of *_input(), meaning "all job for this pkt is done".  */
  145: #define IPPROTO_DONE            257
  146: 
  147: /*
  148:  * Definitions of bits in internet address integers.
  149:  * On subnets, the decomposition of addresses to host and net parts
  150:  * is done according to subnet mask, not the masks here.
  151:  *
  152:  * By byte-swapping the constants, we avoid ever having to byte-swap IP
  153:  * addresses inside the kernel.  Unfortunately, user-level programs rely
  154:  * on these macros not doing byte-swapping.
  155:  */
  156: #ifdef _KERNEL
  157: #define __IPADDR(x)     ((u_int32_t) htonl((u_int32_t)(x)))
  158: #else
  159: #define __IPADDR(x)     ((u_int32_t)(x))
  160: #endif
  161: 
  162: #define IN_CLASSA(i)            (((u_int32_t)(i) & __IPADDR(0x80000000)) == \
  163:                                  __IPADDR(0x00000000))
  164: #define IN_CLASSA_NET           __IPADDR(0xff000000)
  165: #define IN_CLASSA_NSHIFT        24
  166: #define IN_CLASSA_HOST          __IPADDR(0x00ffffff)
  167: #define IN_CLASSA_MAX           128
  168: 
  169: #define IN_CLASSB(i)            (((u_int32_t)(i) & __IPADDR(0xc0000000)) == \
  170:                                  __IPADDR(0x80000000))
  171: #define IN_CLASSB_NET           __IPADDR(0xffff0000)
  172: #define IN_CLASSB_NSHIFT        16
  173: #define IN_CLASSB_HOST          __IPADDR(0x0000ffff)
  174: #define IN_CLASSB_MAX           65536
  175: 
  176: #define IN_CLASSC(i)            (((u_int32_t)(i) & __IPADDR(0xe0000000)) == \
  177:                                  __IPADDR(0xc0000000))
  178: #define IN_CLASSC_NET           __IPADDR(0xffffff00)
  179: #define IN_CLASSC_NSHIFT        8
  180: #define IN_CLASSC_HOST          __IPADDR(0x000000ff)
  181: 
  182: #define IN_CLASSD(i)            (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \
  183:                                  __IPADDR(0xe0000000))
  184: /* These ones aren't really net and host fields, but routing needn't know. */
  185: #define IN_CLASSD_NET           __IPADDR(0xf0000000)
  186: #define IN_CLASSD_NSHIFT        28
  187: #define IN_CLASSD_HOST          __IPADDR(0x0fffffff)
  188: #define IN_MULTICAST(i)         IN_CLASSD(i)
  189: 
  190: #define IN_RFC3021_NET          __IPADDR(0xfffffffe)
  191: #define IN_RFC3021_NSHIFT       31
  192: #define IN_RFC3021_HOST         __IPADDR(0x00000001)
  193: #define IN_RFC3021_SUBNET(n)    (((u_int32_t)(n) & IN_RFC3021_NET) == \
  194:                                  IN_RFC3021_NET)
  195: 
  196: #define IN_EXPERIMENTAL(i)      (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \
  197:                                  __IPADDR(0xf0000000))
  198: #define IN_BADCLASS(i)          (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \
  199:                                  __IPADDR(0xf0000000))
  200: 
  201: #define IN_LOCAL_GROUP(i)       (((u_int32_t)(i) & __IPADDR(0xffffff00)) == \
  202:                                  __IPADDR(0xe0000000))
  203: 
  204: #ifdef _KERNEL
  205: #define IN_CLASSFULBROADCAST(i, b) \
  206:                                 ((IN_CLASSC(b) && (b | IN_CLASSC_HOST) == i) ||     \
  207:                                  (IN_CLASSB(b) && (b | IN_CLASSB_HOST) == i) ||     \
  208:                                  (IN_CLASSA(b) && (b | IN_CLASSA_HOST) == i))
  209: #endif  /* _KERNEL */
  210: 
  211: #define INADDR_ANY              __IPADDR(0x00000000)
  212: #define INADDR_LOOPBACK         __IPADDR(0x7f000001)
  213: #define INADDR_BROADCAST        __IPADDR(0xffffffff)   /* must be masked */
  214: #ifndef _KERNEL
  215: #define INADDR_NONE             __IPADDR(0xffffffff)       /* -1 return */
  216: #endif
  217: 
  218: #define INADDR_UNSPEC_GROUP     __IPADDR(0xe0000000)        /* 224.0.0.0 */
  219: #define INADDR_ALLHOSTS_GROUP   __IPADDR(0xe0000001)      /* 224.0.0.1 */
  220: #define INADDR_ALLROUTERS_GROUP __IPADDR(0xe0000002)    /* 224.0.0.2 */
  221: #define INADDR_CARP_GROUP       __IPADDR(0xe0000012)  /* 224.0.0.18 */
  222: #define INADDR_PFSYNC_GROUP     __IPADDR(0xe00000f0)        /* 224.0.0.240 */
  223: #define INADDR_MAX_LOCAL_GROUP  __IPADDR(0xe00000ff)     /* 224.0.0.255 */
  224: 
  225: #define IN_LOOPBACKNET          127                     /* official! */
  226: 
  227: /*
  228:  * IP Version 4 socket address.
  229:  */
  230: struct sockaddr_in {
  231:         u_int8_t    sin_len;
  232:         sa_family_t sin_family;
  233:         in_port_t   sin_port;
  234:         struct     in_addr sin_addr;
  235:         int8_t     sin_zero[8];
  236: };
  237: 
  238: /*
  239:  * Structure used to describe IP options.
  240:  * Used to store options internally, to pass them to a process,
  241:  * or to restore options retrieved earlier.
  242:  * The ip_dst is used for the first-hop gateway when using a source route
  243:  * (this gets put into the header proper).
  244:  */
  245: struct ip_opts {
  246:         struct in_addr ip_dst;         /* first hop, 0 w/o src rt */
  247: #if defined(__cplusplus)
  248:         int8_t         Ip_opts[40];   /* cannot have same name as class */
  249: #else
  250:         int8_t         ip_opts[40];   /* actually variable in size */
  251: #endif
  252: };
  253: 
  254: /*
  255:  * Options for use with [gs]etsockopt at the IP level.
  256:  * First word of comment is data type; bool is stored in int.
  257:  */
  258: #define IP_OPTIONS              1    /* buf/ip_opts; set/get IP options */
  259: #define IP_HDRINCL              2    /* int; header is included with data */
  260: #define IP_TOS                  3    /* int; IP type of service and preced. */
  261: #define IP_TTL                  4    /* int; IP time to live */
  262: #define IP_RECVOPTS             5    /* bool; receive all IP opts w/dgram */
  263: #define IP_RECVRETOPTS          6    /* bool; receive IP opts for response */
  264: #define IP_RECVDSTADDR          7    /* bool; receive IP dst addr w/dgram */
  265: #define IP_RETOPTS              8    /* ip_opts; set/get IP options */
  266: #define IP_MULTICAST_IF         9    /* in_addr; set/get IP multicast i/f  */
  267: #define IP_MULTICAST_TTL        10   /* u_char; set/get IP multicast ttl */
  268: #define IP_MULTICAST_LOOP       11   /* u_char; set/get IP multicast loopback */
  269: #define IP_ADD_MEMBERSHIP       12   /* ip_mreq; add an IP group membership */
  270: #define IP_DROP_MEMBERSHIP      13   /* ip_mreq; drop an IP group membership */
  271: 
  272: /* 14-17 left empty for future compatibility with FreeBSD */
  273: 
  274: #define IP_PORTRANGE            19   /* int; range to choose for unspec port */
  275: #define IP_AUTH_LEVEL           20   /* int; authentication used */
  276: #define IP_ESP_TRANS_LEVEL      21   /* int; transport encryption */
  277: #define IP_ESP_NETWORK_LEVEL    22   /* int; full-packet encryption */
  278: #define IP_IPSEC_LOCAL_ID       23   /* buf; IPsec local ID */
  279: #define IP_IPSEC_REMOTE_ID      24   /* buf; IPsec remote ID */
  280: #define IP_IPSEC_LOCAL_CRED     25   /* buf; IPsec local credentials */
  281: #define IP_IPSEC_REMOTE_CRED    26   /* buf; IPsec remote credentials */
  282: #define IP_IPSEC_LOCAL_AUTH     27   /* buf; IPsec local auth material */
  283: #define IP_IPSEC_REMOTE_AUTH    28   /* buf; IPsec remote auth material */
  284: #define IP_IPCOMP_LEVEL         29   /* int; compression used */
  285: #define IP_RECVIF               30   /* bool; receive reception if w/dgram */
  286: #define IP_RECVTTL              31   /* bool; receive IP TTL w/dgram */
  287: #define IP_MINTTL               32   /* minimum TTL for packet or drop */
  288: #define IP_RECVDSTPORT          33   /* bool; receive IP dst port w/dgram */
  289: #define IP_PIPEX                34   /* bool; using PIPEX */
  290: #define IP_RECVRTABLE           35   /* bool; receive rdomain w/dgram */
  291: 
  292: #define IP_RTABLE               0x1021       /* int; routing table, see SO_RTABLE */
  293: 
  294: /*
  295:  * Security levels - IPsec, not IPSO
  296:  */
  297: 
  298: #define IPSEC_LEVEL_BYPASS      0x00    /* Bypass policy altogether */
  299: #define IPSEC_LEVEL_NONE        0x00    /* Send clear, accept any */
  300: #define IPSEC_LEVEL_AVAIL       0x01    /* Send secure if SA available */
  301: #define IPSEC_LEVEL_USE         0x02    /* Send secure, accept any */
  302: #define IPSEC_LEVEL_REQUIRE     0x03    /* Require secure inbound, also use */
  303: #define IPSEC_LEVEL_UNIQUE      0x04    /* Use outbound SA that is unique */
  304: #define IPSEC_LEVEL_DEFAULT     IPSEC_LEVEL_AVAIL
  305: 
  306: #define IPSEC_AUTH_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT
  307: #define IPSEC_ESP_TRANS_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT
  308: #define IPSEC_ESP_NETWORK_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT
  309: #define IPSEC_IPCOMP_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT
  310: 
  311: /*
  312:  * Defaults and limits for options
  313:  */
  314: #define IP_DEFAULT_MULTICAST_TTL  1     /* normally limit m'casts to 1 hop  */
  315: #define IP_DEFAULT_MULTICAST_LOOP 1     /* normally hear sends if a member  */
  316: /*
  317:  * The imo_membership vector for each socket starts at IP_MIN_MEMBERSHIPS
  318:  * and is dynamically allocated at run-time, bounded by IP_MAX_MEMBERSHIPS,
  319:  * and is reallocated when needed, sized according to a power-of-two increment.
  320:  */
  321: #define IP_MIN_MEMBERSHIPS      15
  322: #define IP_MAX_MEMBERSHIPS      4095
  323: 
  324: /*
  325:  * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
  326:  */
  327: struct ip_mreq {
  328:         struct in_addr imr_multiaddr;  /* IP multicast address of group */
  329:         struct in_addr imr_interface;  /* local IP address of interface */
  330: };
  331: 
  332: /*
  333:  * Argument for IP_PORTRANGE:
  334:  * - which range to search when port is unspecified at bind() or connect()
  335:  */
  336: #define IP_PORTRANGE_DEFAULT    0  /* default range */
  337: #define IP_PORTRANGE_HIGH       1     /* "high" - request firewall bypass */
  338: #define IP_PORTRANGE_LOW        2      /* "low" - vouchsafe security */
  339: 
  340: /*
  341:  * Buffer lengths for strings containing printable IP addresses
  342:  */
  343: #define INET_ADDRSTRLEN         16
  344: 
  345: /*
  346:  * Definitions for inet sysctl operations.
  347:  *
  348:  * Third level is protocol number.
  349:  * Fourth level is desired variable within that protocol.
  350:  */
  351: #define IPPROTO_MAXID   (IPPROTO_DIVERT + 1)      /* don't list to IPPROTO_MAX */
  352: 
  353: #define CTL_IPPROTO_NAMES { \
  354:         { "ip", CTLTYPE_NODE }, \
  355:         { "icmp", CTLTYPE_NODE }, \
  356:         { "igmp", CTLTYPE_NODE }, \
  357:         { "ggp", CTLTYPE_NODE }, \
  358:         { "ipip", CTLTYPE_NODE }, \
  359:         { 0, 0 }, \
  360:         { "tcp", CTLTYPE_NODE }, \
  361:         { 0, 0 }, \
  362:         { "egp", CTLTYPE_NODE }, \
  363:         { 0, 0 }, \
  364:         { 0, 0 }, \
  365:         { 0, 0 }, \
  366:         { "pup", CTLTYPE_NODE }, \
  367:         { 0, 0 }, \
  368:         { 0, 0 }, \
  369:         { 0, 0 }, \
  370:         { 0, 0 }, \
  371:         { "udp", CTLTYPE_NODE }, \
  372:         { 0, 0 }, \
  373:         { 0, 0 }, \
  374:         { 0, 0 }, \
  375:         { 0, 0 }, \
  376:         { 0, 0 }, \
  377:         { 0, 0 }, \
  378:         { 0, 0 }, \
  379:         { 0, 0 }, \
  380:         { 0, 0 }, \
  381:         { 0, 0 }, \
  382:         { 0, 0 }, \
  383:         { 0, 0 }, \
  384:         { 0, 0 }, \
  385:         { 0, 0 }, \
  386:         { 0, 0 }, \
  387:         { 0, 0 }, \
  388:         { 0, 0 }, \
  389:         { 0, 0 }, \
  390:         { 0, 0 }, \
  391:         { 0, 0 }, \
  392:         { 0, 0 }, \
  393:         { 0, 0 }, \
  394:         { 0, 0 }, \
  395:         { 0, 0 }, \
  396:         { 0, 0 }, \
  397:         { 0, 0 }, \
  398:         { 0, 0 }, \
  399:         { 0, 0 }, \
  400:         { 0, 0 }, \
  401:         { "gre", CTLTYPE_NODE }, \
  402:         { 0, 0 }, \
  403:         { 0, 0 }, \
  404:         { "esp", CTLTYPE_NODE }, \
  405:         { "ah", CTLTYPE_NODE }, \
  406:         { 0, 0 }, \
  407:         { 0, 0 }, \
  408:         { 0, 0 }, \
  409:         { "mobileip", CTLTYPE_NODE }, \
  410:         { 0, 0 }, \
  411:         { 0, 0 }, \
  412:         { 0, 0 }, \
  413:         { 0, 0 }, \
  414:         { 0, 0 }, \
  415:         { 0, 0 }, \
  416:         { 0, 0 }, \
  417:         { 0, 0 }, \
  418:         { 0, 0 }, \
  419:         { 0, 0 }, \
  420:         { 0, 0 }, \
  421:         { 0, 0 }, \
  422:         { 0, 0 }, \
  423:         { 0, 0 }, \
  424:         { 0, 0 }, \
  425:         { 0, 0 }, \
  426:         { 0, 0 }, \
  427:         { 0, 0 }, \
  428:         { 0, 0 }, \
  429:         { 0, 0 }, \
  430:         { 0, 0 }, \
  431:         { 0, 0 }, \
  432:         { 0, 0 }, \
  433:         { 0, 0 }, \
  434:         { 0, 0 }, \
  435:         { 0, 0 }, \
  436:         { 0, 0 }, \
  437:         { 0, 0 }, \
  438:         { 0, 0 }, \
  439:         { 0, 0 }, \
  440:         { 0, 0 }, \
  441:         { 0, 0 }, \
  442:         { 0, 0 }, \
  443:         { 0, 0 }, \
  444:         { 0, 0 }, \
  445:         { 0, 0 }, \
  446:         { 0, 0 }, \
  447:         { 0, 0 }, \
  448:         { 0, 0 }, \
  449:         { 0, 0 }, \
  450:         { 0, 0 }, \
  451:         { "etherip", CTLTYPE_NODE }, \
  452:         { 0, 0 }, \
  453:         { 0, 0 }, \
  454:         { 0, 0 }, \
  455:         { 0, 0 }, \
  456:         { 0, 0 }, \
  457:         { "pim", CTLTYPE_NODE }, \
  458:         { 0, 0 }, \
  459:         { 0, 0 }, \
  460:         { 0, 0 }, \
  461:         { 0, 0 }, \
  462:         { "ipcomp", CTLTYPE_NODE }, \
  463:         { 0, 0 }, \
  464:         { 0, 0 }, \
  465:         { 0, 0 }, \
  466:         { "carp", CTLTYPE_NODE }, \
  467:         { 0, 0 }, \
  468:         { 0, 0 }, \
  469:         { 0, 0 }, \
  470:         { 0, 0 }, \
  471:         { 0, 0 }, \
  472:         { 0, 0 }, \
  473:         { 0, 0 }, \
  474:         { 0, 0 }, \
  475:         { 0, 0 }, \
  476:         { 0, 0 }, \
  477:         { 0, 0 }, \
  478:         { 0, 0 }, \
  479:         { 0, 0 }, \
  480:         { 0, 0 }, \
  481:         { 0, 0 }, \
  482:         { 0, 0 }, \
  483:         { 0, 0 }, \
  484:         { 0, 0 }, \
  485:         { 0, 0 }, \
  486:         { 0, 0 }, \
  487:         { 0, 0 }, \
  488:         { 0, 0 }, \
  489:         { 0, 0 }, \
  490:         { 0, 0 }, \
  491:         { 0, 0 }, \
  492:         { 0, 0 }, \
  493:         { 0, 0 }, \
  494:         { 0, 0 }, \
  495:         { 0, 0 }, \
  496:         { 0, 0 }, \
  497:         { 0, 0 }, \
  498:         { 0, 0 }, \
  499:         { 0, 0 }, \
  500:         { 0, 0 }, \
  501:         { 0, 0 }, \
  502:         { 0, 0 }, \
  503:         { 0, 0 }, \
  504:         { 0, 0 }, \
  505:         { 0, 0 }, \
  506:         { 0, 0 }, \
  507:         { 0, 0 }, \
  508:         { 0, 0 }, \
  509:         { 0, 0 }, \
  510:         { 0, 0 }, \
  511:         { 0, 0 }, \
  512:         { 0, 0 }, \
  513:         { 0, 0 }, \
  514:         { 0, 0 }, \
  515:         { 0, 0 }, \
  516:         { 0, 0 }, \
  517:         { 0, 0 }, \
  518:         { 0, 0 }, \
  519:         { 0, 0 }, \
  520:         { 0, 0 }, \
  521:         { 0, 0 }, \
  522:         { 0, 0 }, \
  523:         { 0, 0 }, \
  524:         { 0, 0 }, \
  525:         { 0, 0 }, \
  526:         { 0, 0 }, \
  527:         { 0, 0 }, \
  528:         { 0, 0 }, \
  529:         { 0, 0 }, \
  530:         { 0, 0 }, \
  531:         { 0, 0 }, \
  532:         { 0, 0 }, \
  533:         { 0, 0 }, \
  534:         { 0, 0 }, \
  535:         { 0, 0 }, \
  536:         { 0, 0 }, \
  537:         { 0, 0 }, \
  538:         { 0, 0 }, \
  539:         { 0, 0 }, \
  540:         { 0, 0 }, \
  541:         { 0, 0 }, \
  542:         { 0, 0 }, \
  543:         { 0, 0 }, \
  544:         { 0, 0 }, \
  545:         { 0, 0 }, \
  546:         { 0, 0 }, \
  547:         { 0, 0 }, \
  548:         { 0, 0 }, \
  549:         { 0, 0 }, \
  550:         { 0, 0 }, \
  551:         { 0, 0 }, \
  552:         { 0, 0 }, \
  553:         { 0, 0 }, \
  554:         { 0, 0 }, \
  555:         { 0, 0 }, \
  556:         { 0, 0 }, \
  557:         { 0, 0 }, \
  558:         { 0, 0 }, \
  559:         { 0, 0 }, \
  560:         { 0, 0 }, \
  561:         { 0, 0 }, \
  562:         { 0, 0 }, \
  563:         { 0, 0 }, \
  564:         { 0, 0 }, \
  565:         { 0, 0 }, \
  566:         { 0, 0 }, \
  567:         { 0, 0 }, \
  568:         { 0, 0 }, \
  569:         { 0, 0 }, \
  570:         { 0, 0 }, \
  571:         { 0, 0 }, \
  572:         { 0, 0 }, \
  573:         { 0, 0 }, \
  574:         { 0, 0 }, \
  575:         { 0, 0 }, \
  576:         { 0, 0 }, \
  577:         { 0, 0 }, \
  578:         { 0, 0 }, \
  579:         { 0, 0 }, \
  580:         { 0, 0 }, \
  581:         { 0, 0 }, \
  582:         { 0, 0 }, \
  583:         { 0, 0 }, \
  584:         { 0, 0 }, \
  585:         { 0, 0 }, \
  586:         { 0, 0 }, \
  587:         { 0, 0 }, \
  588:         { 0, 0 }, \
  589:         { 0, 0 }, \
  590:         { 0, 0 }, \
  591:         { 0, 0 }, \
  592:         { 0, 0 }, \
  593:         { 0, 0 }, \
  594:         { "pfsync", CTLTYPE_NODE }, \
  595:         { 0, 0 }, \
  596:         { 0, 0 }, \
  597:         { 0, 0 }, \
  598:         { 0, 0 }, \
  599:         { 0, 0 }, \
  600:         { 0, 0 }, \
  601:         { 0, 0 }, \
  602:         { 0, 0 }, \
  603:         { 0, 0 }, \
  604:         { 0, 0 }, \
  605:         { 0, 0 }, \
  606:         { 0, 0 }, \
  607:         { 0, 0 }, \
  608:         { 0, 0 }, \
  609:         { 0, 0 }, \
  610:         { 0, 0 }, \
  611:         { 0, 0 }, \
  612:         { "divert", CTLTYPE_NODE }, \
  613: }
  614: 
  615: /*
  616:  * Names for IP sysctl objects
  617:  */
  618: #define IPCTL_FORWARDING        1      /* act as router */
  619: #define IPCTL_SENDREDIRECTS     2   /* may send redirects when forwarding */
  620: #define IPCTL_DEFTTL            3 /* default TTL */
  621: #ifdef notyet
  622: #define IPCTL_DEFMTU            4 /* default MTU */
  623: #endif
  624: #define IPCTL_SOURCEROUTE       5     /* may perform source routes */
  625: #define IPCTL_DIRECTEDBCAST     6   /* default broadcast behavior */
  626: #define IPCTL_IPPORT_FIRSTAUTO  7
  627: #define IPCTL_IPPORT_LASTAUTO   8
  628: #define IPCTL_IPPORT_HIFIRSTAUTO 9
  629: #define IPCTL_IPPORT_HILASTAUTO 10
  630: #define IPCTL_IPPORT_MAXQUEUE   11
  631: #define IPCTL_ENCDEBUG          12
  632: #ifdef notdef   /*obsolete*/
  633: #define IPCTL_GIF_TTL           13       /* default TTL for gif encap packet */
  634: #endif
  635: #define IPCTL_IPSEC_EXPIRE_ACQUIRE 14   /* How long to wait for key mgmt. */
  636: #define IPCTL_IPSEC_EMBRYONIC_SA_TIMEOUT        15 /* new SA lifetime */
  637: #define IPCTL_IPSEC_REQUIRE_PFS 16
  638: #define IPCTL_IPSEC_SOFT_ALLOCATIONS            17
  639: #define IPCTL_IPSEC_ALLOCATIONS 18
  640: #define IPCTL_IPSEC_SOFT_BYTES  19
  641: #define IPCTL_IPSEC_BYTES       20
  642: #define IPCTL_IPSEC_TIMEOUT     21
  643: #define IPCTL_IPSEC_SOFT_TIMEOUT 22
  644: #define IPCTL_IPSEC_SOFT_FIRSTUSE 23
  645: #define IPCTL_IPSEC_FIRSTUSE    24
  646: #define IPCTL_IPSEC_ENC_ALGORITHM 25
  647: #define IPCTL_IPSEC_AUTH_ALGORITHM 26
  648: #define IPCTL_MTUDISC           27       /* allow path MTU discovery */
  649: #define IPCTL_MTUDISCTIMEOUT    28 /* allow path MTU discovery */
  650: #define IPCTL_IPSEC_IPCOMP_ALGORITHM    29
  651: #define IPCTL_IFQUEUE           30
  652: #define IPCTL_MFORWARDING       31
  653: #define IPCTL_MULTIPATH         32
  654: #define IPCTL_STATS             33 /* IP statistics */
  655: #define IPCTL_MRTPROTO          34      /* type of multicast */
  656: #define IPCTL_MRTSTATS          35
  657: #define IPCTL_ARPQUEUED         36
  658: #define IPCTL_MAXID             37
  659: 
  660: #define IPCTL_NAMES { \
  661:         { 0, 0 }, \
  662:         { "forwarding", CTLTYPE_INT }, \
  663:         { "redirect", CTLTYPE_INT }, \
  664:         { "ttl", CTLTYPE_INT }, \
  665:         /* { "mtu", CTLTYPE_INT }, */ { 0, 0 }, \
  666:         { "sourceroute", CTLTYPE_INT }, \
  667:         { "directed-broadcast", CTLTYPE_INT }, \
  668:         { "portfirst", CTLTYPE_INT }, \
  669:         { "portlast", CTLTYPE_INT }, \
  670:         { "porthifirst", CTLTYPE_INT }, \
  671:         { "porthilast", CTLTYPE_INT }, \
  672:         { "maxqueue", CTLTYPE_INT }, \
  673:         { "encdebug", CTLTYPE_INT }, \
  674:         { 0, 0 }, \
  675:         { "ipsec-expire-acquire", CTLTYPE_INT }, \
  676:         { "ipsec-invalid-life", CTLTYPE_INT }, \
  677:         { "ipsec-pfs", CTLTYPE_INT }, \
  678:         { "ipsec-soft-allocs", CTLTYPE_INT }, \
  679:         { "ipsec-allocs", CTLTYPE_INT }, \
  680:         { "ipsec-soft-bytes", CTLTYPE_INT }, \
  681:         { "ipsec-bytes", CTLTYPE_INT }, \
  682:         { "ipsec-timeout", CTLTYPE_INT }, \
  683:         { "ipsec-soft-timeout", CTLTYPE_INT }, \
  684:         { "ipsec-soft-firstuse", CTLTYPE_INT }, \
  685:         { "ipsec-firstuse", CTLTYPE_INT }, \
  686:         { "ipsec-enc-alg", CTLTYPE_STRING }, \
  687:         { "ipsec-auth-alg", CTLTYPE_STRING }, \
  688:         { "mtudisc", CTLTYPE_INT }, \
  689:         { "mtudisctimeout", CTLTYPE_INT }, \
  690:         { "ipsec-comp-alg", CTLTYPE_STRING }, \
  691:         { "ifq", CTLTYPE_NODE }, \
  692:         { "mforwarding", CTLTYPE_INT }, \
  693:         { "multipath", CTLTYPE_INT }, \
  694:         { "stats", CTLTYPE_STRUCT }, \
  695:         { "mrtproto", CTLTYPE_INT }, \
  696:         { "mrtstats", CTLTYPE_STRUCT }, \
  697:         { "arpqueued", CTLTYPE_INT }, \
  698: }
  699: #define IPCTL_VARS { \
  700:         NULL, \
  701:         &ipforwarding, \
  702:         &ipsendredirects, \
  703:         &ip_defttl, \
  704:         NULL, \
  705:         NULL, \
  706:         &ip_directedbcast, \
  707:         &ipport_firstauto, \
  708:         &ipport_lastauto, \
  709:         &ipport_hifirstauto, \
  710:         &ipport_hilastauto, \
  711:         &ip_maxqueue, \
  712:         &encdebug, \
  713:         NULL, \
  714:         &ipsec_expire_acquire, \
  715:         &ipsec_keep_invalid, \
  716:         &ipsec_require_pfs, \
  717:         &ipsec_soft_allocations, \
  718:         &ipsec_exp_allocations, \
  719:         &ipsec_soft_bytes, \
  720:         &ipsec_exp_bytes, \
  721:         &ipsec_exp_timeout, \
  722:         &ipsec_soft_timeout, \
  723:         &ipsec_soft_first_use, \
  724:         &ipsec_exp_first_use, \
  725:         NULL, \
  726:         NULL, \
  727:         NULL, \
  728:         NULL, \
  729:         NULL, \
  730:         NULL, \
  731:         &ipmforwarding, \
  732:         &ipmultipath, \
  733:         NULL, \
  734:         NULL, \
  735:         NULL, \
  736:         &la_hold_total \
  737: }
  738: 
  739: /* INET6 stuff */
  740: #define __KAME_NETINET_IN_H_INCLUDED_
  741: #include <netinet6/in6.h>
  742: #undef __KAME_NETINET_IN_H_INCLUDED_
  743: 
  744: #ifndef _KERNEL
  745: 
  746: #include <sys/cdefs.h>
  747: 
  748: __BEGIN_DECLS
  749: int        bindresvport(int, struct sockaddr_in *);
  750: struct sockaddr;
  751: int        bindresvport_sa(int, struct sockaddr *);
  752: __END_DECLS
  753: 
  754: #else
  755: /*
  756:  * in_cksum_phdr:
  757:  *
  758:  *      Compute significant parts of the IPv4 checksum pseudo-header
  759:  *      for use in a delayed TCP/UDP checksum calculation.
  760:  *
  761:  *      Args:
  762:  *
  763:  *              src         Source IP address
  764:  *              dst         Destination IP address
  765:  *              lenproto    htons(proto-hdr-len + proto-number)
  766:  */
  767: static __inline u_int16_t __attribute__((__unused__))
  768: in_cksum_phdr(u_int32_t src, u_int32_t dst, u_int32_t lenproto)
  769: {
  770:         u_int32_t sum;
  771: 
  772:         sum = lenproto +
  773:               (u_int16_t)(src >> 16) +
  774:               (u_int16_t)(src /*& 0xffff*/) +
  775:               (u_int16_t)(dst >> 16) +
  776:               (u_int16_t)(dst /*& 0xffff*/);
  777: 
  778:         sum = (u_int16_t)(sum >> 16) + (u_int16_t)(sum /*& 0xffff*/);
  779: 
  780:         if (sum > 0xffff)
  781:                 sum -= 0xffff;
  782: 
  783:         return (sum);
  784: }
  785: 
  786: /*
  787:  * in_cksum_addword:
  788:  *
  789:  *      Add the two 16-bit network-order values, carry, and return.
  790:  */
  791: static __inline u_int16_t __attribute__((__unused__))
  792: in_cksum_addword(u_int16_t a, u_int16_t b)
  793: {
  794:         u_int32_t sum = a + b;
  795: 
  796:         if (sum > 0xffff)
  797:                 sum -= 0xffff;
  798: 
  799:         return (sum);
  800: }
  801: 
  802: extern     struct in_addr zeroin_addr;
  803: 
  804: int        in_broadcast(struct in_addr, struct ifnet *, u_int);
  805: int        in_canforward(struct in_addr);
  806: int        in_cksum(struct mbuf *, int);
  807: int        in4_cksum(struct mbuf *, u_int8_t, int, int);
  808: void       in_delayed_cksum(struct mbuf *);
  809: int        in_localaddr(struct in_addr, u_int);
  810: void       in_socktrim(struct sockaddr_in *);
  811: char      *inet_ntoa(struct in_addr);
  812: void       in_proto_cksum_out(struct mbuf *, struct ifnet *);
  813: 
  814: #define in_hosteq(s,t)  ((s).s_addr == (t).s_addr)
  815: #define in_nullhost(x)  ((x).s_addr == INADDR_ANY)
  816: 
  817: #define satosin(sa)     ((struct sockaddr_in *)(sa))
  818: #define sintosa(sin)    ((struct sockaddr *)(sin))
  819: #define ifatoia(ifa)    ((struct in_ifaddr *)(ifa))
  820: #endif /* _KERNEL */
  821: #endif /* _NETINET_IN_H_ */