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1 | \ ========== Copyright Header Begin ========================================== |
2 | \ | |
3 | \ Hypervisor Software File: inpcb.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: @(#)inpcb.fth 1.1 04/09/07 | |
43 | purpose: Internet protocol control block representation | |
44 | copyright: Copyright 2004 Sun Microsystems, Inc. All Rights Reserved | |
45 | copyright: Use is subject to license terms. | |
46 | ||
47 | \ An Internet Protocol Control Block (INPCB) is associated with each | |
48 | \ socket. It holds information about local and remote endpoints for | |
49 | \ this connection and pointers to the associated socket and protocol | |
50 | \ specific control block structures. | |
51 | \ | |
52 | \ TCP maintains state information for a connection in TCP Control | |
53 | \ Blocks (TCBs). UDP maintains a queue of datagrams addressed to | |
54 | \ the socket in UDP Control Blocks (UCBs). | |
55 | \ | |
56 | \ All INPCBs for a particular protocol are held in doubly linked lists | |
57 | \ maintained by that protocol. | |
58 | ||
59 | headerless | |
60 | ||
61 | struct | |
62 | /queue-entry field >in-pcblist \ Doubly linked INPCB list | |
63 | /n field >in-socket \ Back pointer to socket | |
64 | /n field >in-ppcb \ Pointer to per-protocol PCB | |
65 | /ip-addr field >in-faddr \ Remote IP, network byte ordered | |
66 | /w field >in-fport \ Remote port, network byte ordered | |
67 | /ip-addr field >in-laddr \ Local IP, network byte ordered | |
68 | /w field >in-lport \ Local port, network byte ordered | |
69 | constant /inpcb | |
70 | ||
71 | : inpcb>so ( inpcb -- sockaddr ) >in-socket @ ; | |
72 | ||
73 | : in-lport@ ( inpcb -- port ) >in-lport ntohw@ ; | |
74 | : in-fport@ ( inpcb -- port ) >in-fport ntohw@ ; | |
75 | ||
76 | \ Allocate an INPCB for a protocol. | |
77 | : inpcb-alloc ( qhead -- inpcb ) | |
78 | /inpcb dup alloc-mem tuck swap erase ( qhead inpcb ) | |
79 | tuck enqueue ( inpcb ) | |
80 | ; | |
81 | ||
82 | \ Deallocate an INPCB. | |
83 | : inpcb-free ( inpcb -- ) | |
84 | dup remqueue ( inpcb ) | |
85 | /inpcb free-mem ( ) | |
86 | ; | |
87 | ||
88 | \ Bind local address and port number to a socket. | |
89 | : inpcb-bind ( inpcb laddr lport -- ) | |
90 | nip over >in-lport htonw! my-ip-addr swap >in-laddr copy-ip-addr | |
91 | ; | |
92 | ||
93 | \ Record remote IP address and port number for a socket. | |
94 | : inpcb-connect ( inpcb faddr fport -- ) | |
95 | swap dup inaddr-any? if drop inaddr-broadcast then | |
96 | rot tuck >in-faddr copy-ip-addr >in-fport htonw! | |
97 | ; | |
98 | ||
99 | \ Disconnect from remote address and port number. | |
100 | : inpcb-disconnect ( inpcb -- ) | |
101 | 0 over >in-fport htonw! inaddr-any swap >in-faddr copy-ip-addr | |
102 | ; | |
103 | ||
104 | \ Return local address and port number. | |
105 | : in-getsockaddr ( inpcb insock -- ) | |
106 | swap dup >in-laddr swap in-lport@ insock-init | |
107 | ; | |
108 | ||
109 | \ Return foreign address and port number. | |
110 | : in-getpeeraddr ( inpcb insock -- ) | |
111 | swap dup >in-faddr swap in-fport@ insock-init | |
112 | ; | |
113 | ||
114 | [ifdef] DEBUG | |
115 | : .inpcb ( inpcb -- ) | |
116 | dup >in-laddr .ipaddr 2 spaces dup in-lport@ .d 2 spaces | |
117 | dup >in-faddr .ipaddr 2 spaces in-fport@ .d cr | |
118 | ; | |
119 | [then] | |
120 | ||
121 | headers |