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| 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 */ |
| 121 |
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