| 1 | /* |
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| 2 | * INET An implementation of the TCP/IP protocol suite for the LINUX |
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| 3 | * operating system. INET is implemented using the BSD Socket |
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| 4 | * interface as the means of communication with the user level. |
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| 5 | * |
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| 6 | * Global definitions for the IP router interface. |
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| 7 | * |
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| 8 | * Version: @(#)route.h 1.0.3 05/27/93 |
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| 9 | * |
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| 10 | * Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1986-1988 |
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| 11 | * for the purposes of compatibility only. |
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| 12 | * |
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| 13 | * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> |
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| 14 | * |
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| 15 | * Changes: |
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| 16 | * Mike McLagan : Routing by source |
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| 17 | * |
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| 18 | * This program is free software; you can redistribute it and/or |
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| 19 | * modify it under the terms of the GNU General Public License |
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| 20 | * as published by the Free Software Foundation; either version |
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| 21 | * 2 of the License, or (at your option) any later version. |
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| 22 | */ |
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| 23 | #ifndef _LINUX_ROUTE_H |
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| 24 | #define _LINUX_ROUTE_H |
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| 25 | |
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| 26 | #include <linux/if.h> |
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| 27 | |
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| 28 | |
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| 29 | /* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */ |
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| 30 | struct rtentry |
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| 31 | { |
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| 32 | unsigned long rt_pad1; |
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| 33 | struct sockaddr rt_dst; /* target address */ |
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| 34 | struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */ |
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| 35 | struct sockaddr rt_genmask; /* target network mask (IP) */ |
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| 36 | unsigned short rt_flags; |
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| 37 | short rt_pad2; |
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| 38 | unsigned long rt_pad3; |
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| 39 | void *rt_pad4; |
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| 40 | short rt_metric; /* +1 for binary compatibility! */ |
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| 41 | char *rt_dev; /* forcing the device at add */ |
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| 42 | unsigned long rt_mtu; /* per route MTU/Window */ |
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| 43 | #define rt_mss rt_mtu /* Compatibility :-( */ |
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| 44 | unsigned long rt_window; /* Window clamping */ |
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| 45 | unsigned short rt_irtt; /* Initial RTT */ |
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| 46 | }; |
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| 47 | |
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| 48 | |
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| 49 | #define RTF_UP 0x0001 /* route usable */ |
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| 50 | #define RTF_GATEWAY 0x0002 /* destination is a gateway */ |
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| 51 | #define RTF_HOST 0x0004 /* host entry (net otherwise) */ |
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| 52 | #define RTF_REINSTATE 0x0008 /* reinstate route after tmout */ |
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| 53 | #define RTF_DYNAMIC 0x0010 /* created dyn. (by redirect) */ |
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| 54 | #define RTF_MODIFIED 0x0020 /* modified dyn. (by redirect) */ |
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| 55 | #define RTF_MTU 0x0040 /* specific MTU for this route */ |
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| 56 | #define RTF_MSS RTF_MTU /* Compatibility :-( */ |
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| 57 | #define RTF_WINDOW 0x0080 /* per route window clamping */ |
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| 58 | #define RTF_IRTT 0x0100 /* Initial round trip time */ |
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| 59 | #define RTF_REJECT 0x0200 /* Reject route */ |
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| 60 | |
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| 61 | /* |
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| 62 | * <linux/ipv6_route.h> uses RTF values >= 64k |
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| 63 | */ |
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| 64 | |
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| 65 | |
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| 66 | |
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| 67 | #endif /* _LINUX_ROUTE_H */ |
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| 68 | |
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