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1 | /* Copyright (C) 1997-2019 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 | ||
29 | ||
30 | /* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */ | |
31 | struct rtentry | |
32 | { | |
33 | unsigned long int rt_pad1; | |
34 | struct sockaddr rt_dst; /* Target address. */ | |
35 | struct sockaddr rt_gateway; /* Gateway addr (RTF_GATEWAY). */ | |
36 | struct sockaddr rt_genmask; /* Target network mask (IP). */ | |
37 | unsigned short int rt_flags; | |
38 | short int rt_pad2; | |
39 | unsigned long int rt_pad3; | |
40 | unsigned char rt_tos; | |
41 | unsigned char rt_class; | |
42 | short int rt_pad4; | |
43 | short int rt_metric; /* +1 for binary compatibility! */ | |
44 | char *rt_dev; /* Forcing the device at add. */ | |
45 | unsigned long int rt_mtu; /* Per route MTU/Window. */ | |
46 | unsigned long int rt_window; /* Window clamping. */ | |
47 | unsigned short int rt_irtt; /* Initial RTT. */ | |
48 | }; | |
49 | /* Compatibility hack. */ | |
50 | #define rt_mss rt_mtu | |
51 | ||
52 | ||
53 | struct in6_rtmsg | |
54 | { | |
55 | struct in6_addr rtmsg_dst; | |
56 | struct in6_addr rtmsg_src; | |
57 | struct in6_addr rtmsg_gateway; | |
58 | uint32_t rtmsg_type; | |
59 | uint16_t rtmsg_dst_len; | |
60 | uint16_t rtmsg_src_len; | |
61 | uint32_t rtmsg_metric; | |
62 | unsigned long int rtmsg_info; | |
63 | uint32_t rtmsg_flags; | |
64 | int rtmsg_ifindex; | |
65 | }; | |
66 | ||
67 | ||
68 | #define RTF_UP 0x0001 /* Route usable. */ | |
69 | #define RTF_GATEWAY 0x0002 /* Destination is a gateway. */ | |
70 | ||
71 | #define RTF_HOST 0x0004 /* Host entry (net otherwise). */ | |
72 | #define RTF_REINSTATE 0x0008 /* Reinstate route after timeout. */ | |
73 | #define RTF_DYNAMIC 0x0010 /* Created dyn. (by redirect). */ | |
74 | #define RTF_MODIFIED 0x0020 /* Modified dyn. (by redirect). */ | |
75 | #define RTF_MTU 0x0040 /* Specific MTU for this route. */ | |
76 | #define RTF_MSS RTF_MTU /* Compatibility. */ | |
77 | #define RTF_WINDOW 0x0080 /* Per route window clamping. */ | |
78 | #define RTF_IRTT 0x0100 /* Initial round trip time. */ | |
79 | #define RTF_REJECT 0x0200 /* Reject route. */ | |
80 | #define RTF_STATIC 0x0400 /* Manually injected route. */ | |
81 | #define RTF_XRESOLVE 0x0800 /* External resolver. */ | |
82 | #define RTF_NOFORWARD 0x1000 /* Forwarding inhibited. */ | |
83 | #define RTF_THROW 0x2000 /* Go to next class. */ | |
84 | #define RTF_NOPMTUDISC 0x4000 /* Do not send packets with DF. */ | |
85 | ||
86 | /* for IPv6 */ | |
87 | #define RTF_DEFAULT 0x00010000 /* default - learned via ND */ | |
88 | #define RTF_ALLONLINK 0x00020000 /* fallback, no routers on link */ | |
89 | #define RTF_ADDRCONF 0x00040000 /* addrconf route - RA */ | |
90 | ||
91 | #define RTF_LINKRT 0x00100000 /* link specific - device match */ | |
92 | #define RTF_NONEXTHOP 0x00200000 /* route with no nexthop */ | |
93 | ||
94 | #define RTF_CACHE 0x01000000 /* cache entry */ | |
95 | #define RTF_FLOW 0x02000000 /* flow significant route */ | |
96 | #define RTF_POLICY 0x04000000 /* policy route */ | |
97 | ||
98 | #define RTCF_VALVE 0x00200000 | |
99 | #define RTCF_MASQ 0x00400000 | |
100 | #define RTCF_NAT 0x00800000 | |
101 | #define RTCF_DOREDIRECT 0x01000000 | |
102 | #define RTCF_LOG 0x02000000 | |
103 | #define RTCF_DIRECTSRC 0x04000000 | |
104 | ||
105 | #define RTF_LOCAL 0x80000000 | |
106 | #define RTF_INTERFACE 0x40000000 | |
107 | #define RTF_MULTICAST 0x20000000 | |
108 | #define RTF_BROADCAST 0x10000000 | |
109 | #define RTF_NAT 0x08000000 | |
110 | ||
111 | #define RTF_ADDRCLASSMASK 0xF8000000 | |
112 | #define RT_ADDRCLASS(flags) ((uint32_t) flags >> 23) | |
113 | ||
114 | #define RT_TOS(tos) ((tos) & IPTOS_TOS_MASK) | |
115 | ||
116 | #define RT_LOCALADDR(flags) ((flags & RTF_ADDRCLASSMASK) \ | |
117 | == (RTF_LOCAL|RTF_INTERFACE)) | |
118 | ||
119 | #define RT_CLASS_UNSPEC 0 | |
120 | #define RT_CLASS_DEFAULT 253 | |
121 | ||
122 | #define RT_CLASS_MAIN 254 | |
123 | #define RT_CLASS_LOCAL 255 | |
124 | #define RT_CLASS_MAX 255 | |
125 | ||
126 | ||
127 | #define RTMSG_ACK NLMSG_ACK | |
128 | #define RTMSG_OVERRUN NLMSG_OVERRUN | |
129 | ||
130 | #define RTMSG_NEWDEVICE 0x11 | |
131 | #define RTMSG_DELDEVICE 0x12 | |
132 | #define RTMSG_NEWROUTE 0x21 | |
133 | #define RTMSG_DELROUTE 0x22 | |
134 | #define RTMSG_NEWRULE 0x31 | |
135 | #define RTMSG_DELRULE 0x32 | |
136 | #define RTMSG_CONTROL 0x40 | |
137 | ||
138 | #define RTMSG_AR_FAILED 0x51 /* Address Resolution failed. */ | |
139 | ||
140 | #endif /* net/route.h */ |