sysdeps/mach/hurd/net/route.h

   1 /* Copyright (C) 1997-2024 Free Software Foundation, Inc..
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 /* Based on the 4.4BSD and Linux version of this file.  */
  19
  20 #ifndef _NET_ROUTE_H
  21
  22 #define _NET_ROUTE_H    1
  23 #include <features.h>
  24
  25 #include <sys/socket.h>
  26 #include <sys/types.h>
  27 #include <netinet/in.h>
  28 #include <net/if.h>
  29
  30
  31 typedef struct ifrtreq
  32   {
  33     char ifname[IF_NAMESIZE];
  34     in_addr_t rt_dest;
  35     in_addr_t rt_mask;
  36     in_addr_t rt_gateway;
  37     int rt_flags;
  38     int rt_metric;
  39     int rt_mtu;
  40     int rt_window;
  41     int rt_irtt;
  42     int rt_tos;
  43     int rt_class;
  44   } ifrtreq_t;
  45 #define _IOT_ifrtreq _IOT (_IOTS(char), IF_NAMESIZE, _IOTS(int), 10, 0, 0)
  46
  47
  48 #define RTF_UP          0x0001          /* Route usable.  */
  49 #define RTF_GATEWAY     0x0002          /* Destination is a gateway.  */
  50
  51 #define RTF_HOST        0x0004          /* Host entry (net otherwise).  */
  52 #define RTF_REINSTATE   0x0008          /* Reinstate route after timeout.  */
  53 #define RTF_DYNAMIC     0x0010          /* Created dyn. (by redirect).  */
  54 #define RTF_MODIFIED    0x0020          /* Modified dyn. (by redirect).  */
  55 #define RTF_MTU         0x0040          /* Specific MTU for this route.  */
  56 #define RTF_MSS         RTF_MTU         /* Compatibility.  */
  57 #define RTF_WINDOW      0x0080          /* Per route window clamping.  */
  58 #define RTF_IRTT        0x0100          /* Initial round trip time.  */
  59 #define RTF_REJECT      0x0200          /* Reject route.  */
  60 #define RTF_STATIC      0x0400          /* Manually injected route.  */
  61 #define RTF_XRESOLVE    0x0800          /* External resolver.  */
  62 #define RTF_NOFORWARD   0x1000          /* Forwarding inhibited.  */
  63 #define RTF_THROW       0x2000          /* Go to next class.  */
  64 #define RTF_NOPMTUDISC  0x4000          /* Do not send packets with DF.  */
  65
  66 /* for IPv6 */
  67 #define RTF_DEFAULT     0x00010000      /* default - learned via ND     */
  68 #define RTF_ALLONLINK   0x00020000      /* fallback, no routers on link */
  69 #define RTF_ADDRCONF    0x00040000      /* addrconf route - RA          */
  70
  71 #define RTF_LINKRT      0x00100000      /* link specific - device match */
  72 #define RTF_NONEXTHOP   0x00200000      /* route with no nexthop        */
  73
  74 #define RTF_CACHE       0x01000000      /* cache entry                  */
  75 #define RTF_FLOW        0x02000000      /* flow significant route       */
  76 #define RTF_POLICY      0x04000000      /* policy route                 */
  77
  78 #define RTCF_VALVE      0x00200000
  79 #define RTCF_MASQ       0x00400000
  80 #define RTCF_NAT        0x00800000
  81 #define RTCF_DOREDIRECT 0x01000000
  82 #define RTCF_LOG        0x02000000
  83 #define RTCF_DIRECTSRC  0x04000000
  84
  85 #define RTF_LOCAL       0x80000000
  86 #define RTF_INTERFACE   0x40000000
  87 #define RTF_MULTICAST   0x20000000
  88 #define RTF_BROADCAST   0x10000000
  89 #define RTF_NAT         0x08000000
  90
  91 #define RTF_ADDRCLASSMASK       0xF8000000
  92 #define RT_ADDRCLASS(flags)     ((uint32_t) flags >> 23)
  93
  94 #define RT_TOS(tos)             ((tos) & IPTOS_TOS_MASK)
  95
  96 #define RT_LOCALADDR(flags)     ((flags & RTF_ADDRCLASSMASK) \
  97                                  == (RTF_LOCAL|RTF_INTERFACE))
  98
  99 #define RT_CLASS_UNSPEC         0
 100 #define RT_CLASS_DEFAULT        253
 101
 102 #define RT_CLASS_MAIN           254
 103 #define RT_CLASS_LOCAL          255
 104 #define RT_CLASS_MAX            255
 105
 106
 107 #define RTMSG_ACK               NLMSG_ACK
 108 #define RTMSG_OVERRUN           NLMSG_OVERRUN
 109
 110 #define RTMSG_NEWDEVICE         0x11
 111 #define RTMSG_DELDEVICE         0x12
 112 #define RTMSG_NEWROUTE          0x21
 113 #define RTMSG_DELROUTE          0x22
 114 #define RTMSG_NEWRULE           0x31
 115 #define RTMSG_DELRULE           0x32
 116 #define RTMSG_CONTROL           0x40
 117
 118 #define RTMSG_AR_FAILED         0x51    /* Address Resolution failed.  */
 119
 120 #endif /* net/route.h */