include/ws2tcpip.h

   1 /*
   2  *  ws2tcpip.h : TCP/IP specific extensions in Windows Sockets 2
   3  *
   4  * Portions Copyright (c) 1980, 1983, 1988, 1993
   5  * The Regents of the University of California.  All rights reserved.
   6  *
   7  */
   8
   9 #ifndef _WS2TCPIP_H
  10 #define _WS2TCPIP_H
  11
  12 #include <winsock2.h>
  13
  14 /*
  15  * The IP_* macros are also defined in winsock.h, but some values are different there.
  16  * The values defined in winsock.h for 1.1 and used in wsock32.dll are consistent
  17  * with the original values Steve Deering defined in his document "IP Multicast Extensions
  18  * for 4.3BSD UNIX related systems (MULTICAST 1.2 Release)." However, these conflicted with
  19  * the definitions for some IPPROTO_IP level socket options already assigned by BSD,
  20  * so Berkeley changed all the values by adding 7.  WinSock2 (ws2_32.dll)  uses
  21  * the BSD 4.4 compatible values defined here.
  22  *
  23  * See also: msdn kb article Q257460
  24  * http://support.microsoft.com/support/kb/articles/Q257/4/60.asp
  25  */
  26
  27 /* This is also defined in winsock.h; value hasn't changed */
  28 #define IP_OPTIONS  1
  29
  30 #define IP_HDRINCL  2
  31 /*
  32  * These are also be defined in winsock.h,
  33  * but values have changed for WinSock2 interface
  34  */
  35 #define IP_TOS  3   /* old (winsock 1.1) value 8 */
  36 #define IP_TTL  4  /* old value 7 */
  37 #define IP_MULTICAST_IF         9 /* old value 2 */
  38 #define IP_MULTICAST_TTL    10 /* old value 3 */
  39 #define IP_MULTICAST_LOOP   11 /* old value 4 */
  40 #define IP_ADD_MEMBERSHIP   12 /* old value 5 */
  41 #define IP_DROP_MEMBERSHIP  13 /* old value 6 */
  42 #define IP_DONTFRAGMENT 14 /* old value 9 */
  43
  44 #define IP_DEFAULT_MULTICAST_TTL 1
  45 #define IP_DEFAULT_MULTICAST_LOOP 1
  46 #define IP_MAX_MEMBERSHIPS 20
  47
  48 #define TCP_EXPEDITED_1122  2
  49
  50 #define UDP_NOCHECKSUM  1
  51
  52 #define IFF_UP  1
  53 #define IFF_BROADCAST   2
  54 #define IFF_LOOPBACK    4
  55 #define IFF_POINTTOPOINT    8
  56 #define IFF_MULTICAST   16
  57
  58 #define SIO_GET_INTERFACE_LIST  _IOR('t', 127, u_long)
  59
  60 /*
  61  *   ip_mreq also in winsock.h for WinSock1.1,
  62  *   but online msdn docs say it is defined here for WinSock2.
  63  */
  64 struct ip_mreq {
  65         struct in_addr imr_multiaddr;
  66         struct in_addr imr_interface;
  67 };
  68
  69 typedef struct _INTERFACE_INFO {
  70         u_long          iiFlags;
  71     struct sockaddr iiAddress;
  72         struct sockaddr iiBroadcastAddress;
  73         struct sockaddr iiNetmask;
  74 } INTERFACE_INFO, *LPINTERFACE_INFO;
  75
  76
  77 /* ipv6 */
  78
  79 /*
  80  * According to online msdn documentation (12 Dec 2000), two separate implentations
  81  * of ipv6 are available (1) the Microsoft IPv6 Technology Preview  (requires W2K SP1)
  82  * and (2) the MS Research IPV6 implementation (requires NT4 or W2K).
  83  * Neither are production level implementations.
  84  */
  85
  86 #if 0
  87 /*
  88  * The following is based on what online msdn PSDK docs say as at 5 Dec 2000
  89  */
  90 struct in_addr6 /* sic */ { u_char s6_addr[16]; };
  91 typedef struct in_addr6 IN6_ADDR,  *PIN6_ADDR, *LPIN6_ADDR;
  92
  93 typedef struct sockaddr_in6 {
  94                 short   sin6_family;
  95                 u_short sin6_port;
  96                 u_long  sin6_flowinfo;
  97                 struct in_addr6 sin6_addr;
  98 } SOCKADDR_IN6, *PSOCKADDR_IN6, *LPSOCKADDR_IN6;
  99
 100 #elif 0
 101 /*
 102  * In the FAQ section of Microsoft IPv6 Technology Preview for Windows 2000
 103  * (dated 12 Dec 2000) it says that the Preview and the MS Research implemntation
 104  * support RFC 2553, and in particular, uses the sockaddr_in6 structure defined
 105  * in Section 3.3. That would look something like this:
 106 */
 107 #include <stdint.h>
 108 struct in6_addr { /* this is the standard name */
 109         union {
 110                 uint8_t   _u6_addr8[16];
 111                 uint16_t  _u6_addr16[8];
 112                 uint32_t  _u6_addr32[4];
 113              /* uint64_t  _u6_addr64[2];*/
 114         } _u6_addr;
 115 };
 116 typedef struct in6_addr IN6_ADDR,  *PIN6_ADDR, *LPIN6_ADDR;
 117 #define s6_addr   _u6_addr._u6_addr8
 118
 119 struct sockaddr_in6 {
 120     uint16_t sin6_family; /* AF_INET6 */
 121         uint16_t sin6_port; /* transport layer port # */
 122         uint32_t sin6_flowinfo; /* IPv6 traffic class & flow info */
 123         struct in6_addr sin6_addr;  /* IPv6 address */
 124     uint32_t sin6_scope_id;  /* set of interfaces for a scope */
 125 };
 126 typedef struct sockaddr_in6  SOCKADDR_IN6, *PSOCKADDR_IN6, *LPSOCKADDR_IN6;
 127
 128 /*
 129  * Watch this space.
 130  * These may get moved out to ipv6 specific header(s). along with other
 131  * standard structures and functions specified in RFC 2553.
 132  */
 133 #endif
 134
 135 #endif  /* _WS2TCPIP_H */
 136
 137
 138