Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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1 $FreeBSD: releng/6.4/sys/netipx/README 159442 2006-06-08 23:36:03Z rwatson $ 2 3 This protocol implements IPX/SPX over Ethernet_II frame type 0x8137. 4 Please note: the SPX implementation may require further work and testing 5 to insure proper operation. 6 7 Mike Mitchell, Network Engineer 8 AMTECH Systems Corporation, Technology and Manufacturing 9 8600 Jefferson Street, Albuquerque, New Mexico 87113 (505) 856-8000 10 firstname.lastname@example.org 11 12 John Hay 13 Some Company 14 Some Address 15 email@example.com 16 17 Adapted for multi-processor, multi-threaded network stack by Robert N. M. 18 Watson, Computer Laboratory, University of Cambridge. 19 20 --- Copyright Information --- 21 /*- 22 23 Copyright (c) 1984, 1985, 1986, 1987, 1993 24 The Regents of the University of California. All rights reserved. 25 26 Modifications Copyright (c) 1995, Mike Mitchell 27 Modifications Copyright (c) 1995, John Hay 28 Modifications Copyright (c) 2004-2006 Robert N. M. Watson 29 30 */ 31 32 --- TODO --- 33 34 (1) netipx default socket buffer sizes are very small by contemporary 35 standards, and should be increased following testing and measurement. 36 37 (2) SPX will free the PCB and socket buffer memory on close(), which means 38 close() in effects terminates the transfer of any outstanding buffered 39 but unsent data. As with TCP, it should instead grab its own 40 reference to the socket so that it is not released, as hold onto it 41 until the data transfer is complete. 42 43 (3) Raw socket capture of IPX output intercepts packets in the SPX output 44 routine in order to feed them back into the raw socket. This results 45 in recursion into the socket code in the transmit path; instead, 46 captured packets should be fed into a netisr that reinjects them into 47 raw sockets from a new (asynchronous) context. 48 49 (4) IPX over IP encapsulation needs work to make it properly MPSAFE.
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