Commit | Line | Data |
---|---|---|
920dae64 AT |
1 | \ ========== Copyright Header Begin ========================================== |
2 | \ | |
3 | \ Hypervisor Software File: ip-h.fth | |
4 | \ | |
5 | \ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
6 | \ | |
7 | \ - Do no alter or remove copyright notices | |
8 | \ | |
9 | \ - Redistribution and use of this software in source and binary forms, with | |
10 | \ or without modification, are permitted provided that the following | |
11 | \ conditions are met: | |
12 | \ | |
13 | \ - Redistribution of source code must retain the above copyright notice, | |
14 | \ this list of conditions and the following disclaimer. | |
15 | \ | |
16 | \ - Redistribution in binary form must reproduce the above copyright notice, | |
17 | \ this list of conditions and the following disclaimer in the | |
18 | \ documentation and/or other materials provided with the distribution. | |
19 | \ | |
20 | \ Neither the name of Sun Microsystems, Inc. or the names of contributors | |
21 | \ may be used to endorse or promote products derived from this software | |
22 | \ without specific prior written permission. | |
23 | \ | |
24 | \ This software is provided "AS IS," without a warranty of any kind. | |
25 | \ ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, | |
26 | \ INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A | |
27 | \ PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN | |
28 | \ MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR | |
29 | \ ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR | |
30 | \ DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN | |
31 | \ OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR | |
32 | \ FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE | |
33 | \ DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, | |
34 | \ ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF | |
35 | \ SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | |
36 | \ | |
37 | \ You acknowledge that this software is not designed, licensed or | |
38 | \ intended for use in the design, construction, operation or maintenance of | |
39 | \ any nuclear facility. | |
40 | \ | |
41 | \ ========== Copyright Header End ============================================ | |
42 | id: @(#)ip-h.fth 1.1 04/09/07 | |
43 | purpose: | |
44 | copyright: Copyright 2004 Sun Microsystems, Inc. All Rights Reserved | |
45 | copyright: Use is subject to license terms. | |
46 | ||
47 | headerless | |
48 | ||
49 | struct | |
50 | /c field >ip-ver,hlen \ Version and header length | |
51 | /c field >ip-service \ Type of service | |
52 | /w field >ip-len \ Total length | |
53 | /w field >ip-id \ Identification | |
54 | /w field >ip-fraginfo \ Flags and fragment offset | |
55 | /c field >ip-ttl \ Time to Live | |
56 | /c field >ip-protocol \ Protocol | |
57 | /w field >ip-cksum \ Header checksum | |
58 | /ip-addr field >ip-src \ IP source address | |
59 | /ip-addr field >ip-dest \ IP destination address | |
60 | constant /ip-header | |
61 | ||
62 | h# 2000 constant IP_MF \ More fragments flag | |
63 | h# 4000 constant IP_DF \ Dont fragment flag | |
64 | h# 1fff constant IP_FRAGOFF \ Fragment offset mask | |
65 | ||
66 | d# 65535 constant IP_MAX_PKTSIZE \ Maximum packet size | |
67 | d# 64 constant IP_DEFAULT_TTL \ Default TTL | |
68 | ||
69 | : ip-ver@ ( pkt -- n ) >ip-ver,hlen c@ 4 rshift ; | |
70 | ||
71 | : ip-hlen@ ( pkt -- n ) >ip-ver,hlen c@ h# f and 2 lshift ; | |
72 | ||
73 | : ip-hlen! ( n pkt -- ) | |
74 | tuck >ip-ver,hlen c@ h# f0 and swap 2 rshift or swap >ip-ver,hlen c! | |
75 | ; | |
76 | ||
77 | : ip-len@ ( pkt -- n ) >ip-len ntohw@ ; | |
78 | : ip-len! ( n pkt -- ) >ip-len htonw! ; | |
79 | ||
80 | : ip-protocol@ ( pkt -- n ) >ip-protocol c@ ; | |
81 | ||
82 | : ip-datalen@ ( pkt -- n ) dup ip-len@ swap ip-hlen@ - ; | |
83 | ||
84 | : ipf-start@ ( pkt -- n ) | |
85 | >ip-fraginfo ntohw@ IP_FRAGOFF and 3 << | |
86 | ; | |
87 | ||
88 | : ipf-end@ ( pkt -- n ) | |
89 | dup ipf-start@ swap ip-datalen@ + 1- | |
90 | ; | |
91 | ||
92 | : ipf-flags@ ( pkt -- n ) | |
93 | >ip-fraginfo ntohw@ IP_FRAGOFF invert and | |
94 | ; | |
95 | ||
96 | \ Get to payload of IP packet. Assumes IP header has no options | |
97 | : ippkt>payload ( pkt -- adr len ) | |
98 | dup ip-len@ /ip-header encapsulated-data | |
99 | ; | |
100 | ||
101 | headers |