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001: /* Copyright (C) 1997, 2002 Free Software Foundation, Inc.
002:    This file is part of the GNU C Library.
003: 
004:    The GNU C Library is free software; you can redistribute it and/or
005:    modify it under the terms of the GNU Lesser General Public
006:    License as published by the Free Software Foundation; either
007:    version 2.1 of the License, or (at your option) any later version.
008: 
009:    The GNU C Library is distributed in the hope that it will be useful,
010:    but WITHOUT ANY WARRANTY; without even the implied warranty of
011:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
012:    Lesser General Public License for more details.
013: 
014:    You should have received a copy of the GNU Lesser General Public
015:    License along with the GNU C Library; if not, write to the Free
016:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
017:    02111-1307 USA.  */
018: 
019: /* Based on the 4.4BSD and Linux version of this file.  */
020: 
021: #ifndef _NET_ROUTE_H
022: #define _NET_ROUTE_H    1
023: 
024: #include <features.h>
025: #include <sys/socket.h>
026: #include <sys/types.h>
027: #include <netinet/in.h>
028: #include <bits/wordsize.h>
029: 
030: 
031: /* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */
032: struct rtentry
033:   {
034:     unsigned long int rt_pad1;
035:     struct sockaddr rt_dst;             /* Target address.  */
036:     struct sockaddr rt_gateway;         /* Gateway addr (RTF_GATEWAY).  */
037:     struct sockaddr rt_genmask;         /* Target network mask (IP).  */
038:     unsigned short int rt_flags;
039:     short int rt_pad2;
040:     unsigned long int rt_pad3;
041:     unsigned char rt_tos;
042:     unsigned char rt_class;
043: #if __WORDSIZE == 64
044:     short int rt_pad4[3];
045: #else
046:     short int rt_pad4;
047: #endif
048:     short int rt_metric;                /* +1 for binary compatibility!  */
049:     char *rt_dev;                       /* Forcing the device at add.  */
050:     unsigned long int rt_mtu;           /* Per route MTU/Window.  */
051:     unsigned long int rt_window;        /* Window clamping.  */
052:     unsigned short int rt_irtt;         /* Initial RTT.  */
053:   };
054: /* Compatibility hack.  */
055: #define rt_mss  rt_mtu
056: 
057: 
058: struct in6_rtmsg
059:   {
060:     struct in6_addr rtmsg_dst;
061:     struct in6_addr rtmsg_src;
062:     struct in6_addr rtmsg_gateway;
063:     u_int32_t rtmsg_type;
064:     u_int16_t rtmsg_dst_len;
065:     u_int16_t rtmsg_src_len;
066:     u_int32_t rtmsg_metric;
067:     unsigned long int rtmsg_info;
068:     u_int32_t rtmsg_flags;
069:     int rtmsg_ifindex;
070:   };
071: 
072: 
073: #define RTF_UP          0x0001          /* Route usable.  */
074: #define RTF_GATEWAY     0x0002          /* Destination is a gateway.  */
075: 
076: #define RTF_HOST        0x0004          /* Host entry (net otherwise).  */
077: #define RTF_REINSTATE   0x0008          /* Reinstate route after timeout.  */
078: #define RTF_DYNAMIC     0x0010          /* Created dyn. (by redirect).  */
079: #define RTF_MODIFIED    0x0020          /* Modified dyn. (by redirect).  */
080: #define RTF_MTU         0x0040          /* Specific MTU for this route.  */
081: #define RTF_MSS         RTF_MTU         /* Compatibility.  */
082: #define RTF_WINDOW      0x0080          /* Per route window clamping.  */
083: #define RTF_IRTT        0x0100          /* Initial round trip time.  */
084: #define RTF_REJECT      0x0200          /* Reject route.  */
085: #define RTF_STATIC      0x0400          /* Manually injected route.  */
086: #define RTF_XRESOLVE    0x0800          /* External resolver.  */
087: #define RTF_NOFORWARD   0x1000          /* Forwarding inhibited.  */
088: #define RTF_THROW       0x2000          /* Go to next class.  */
089: #define RTF_NOPMTUDISC  0x4000          /* Do not send packets with DF.  */
090: 
091: /* for IPv6 */
092: #define RTF_DEFAULT     0x00010000      /* default - learned via ND     */
093: #define RTF_ALLONLINK   0x00020000      /* fallback, no routers on link */
094: #define RTF_ADDRCONF    0x00040000      /* addrconf route - RA          */
095: 
096: #define RTF_LINKRT      0x00100000      /* link specific - device match */
097: #define RTF_NONEXTHOP   0x00200000      /* route with no nexthop        */
098: 
099: #define RTF_CACHE       0x01000000      /* cache entry                  */
100: #define RTF_FLOW        0x02000000      /* flow significant route       */
101: #define RTF_POLICY      0x04000000      /* policy route                 */
102: 
103: #define RTCF_VALVE      0x00200000
104: #define RTCF_MASQ       0x00400000
105: #define RTCF_NAT        0x00800000
106: #define RTCF_DOREDIRECT 0x01000000
107: #define RTCF_LOG        0x02000000
108: #define RTCF_DIRECTSRC  0x04000000
109: 
110: #define RTF_LOCAL       0x80000000
111: #define RTF_INTERFACE   0x40000000
112: #define RTF_MULTICAST   0x20000000
113: #define RTF_BROADCAST   0x10000000
114: #define RTF_NAT         0x08000000
115: 
116: #define RTF_ADDRCLASSMASK       0xF8000000
117: #define RT_ADDRCLASS(flags)     ((__u_int32_t) flags >> 23)
118: 
119: #define RT_TOS(tos)             ((tos) & IPTOS_TOS_MASK)
120: 
121: #define RT_LOCALADDR(flags)     ((flags & RTF_ADDRCLASSMASK) \
122:                                  == (RTF_LOCAL|RTF_INTERFACE))
123: 
124: #define RT_CLASS_UNSPEC         0
125: #define RT_CLASS_DEFAULT        253
126: 
127: #define RT_CLASS_MAIN           254
128: #define RT_CLASS_LOCAL          255
129: #define RT_CLASS_MAX            255
130: 
131: 
132: #define RTMSG_ACK               NLMSG_ACK
133: #define RTMSG_OVERRUN           NLMSG_OVERRUN
134: 
135: #define RTMSG_NEWDEVICE         0x11
136: #define RTMSG_DELDEVICE         0x12
137: #define RTMSG_NEWROUTE          0x21
138: #define RTMSG_DELROUTE          0x22
139: #define RTMSG_NEWRULE           0x31
140: #define RTMSG_DELRULE           0x32
141: #define RTMSG_CONTROL           0x40
142: 
143: #define RTMSG_AR_FAILED         0x51    /* Address Resolution failed.  */
144: 
145: #endif /* net/route.h */
146: 

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