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using raw IPX sockets. While functional, this support is disabled using a flag that can't be changed from userspace, and google reveals no documentation or use of that flag anywhere. This eliminates a potential lock order reversal and code reentrance issue in which the output path reentered the input path in IPX. An alternative to removal would be to use the netisr, as a comment I added in 2005 suggests. While this change is fairly straight-forward, the lack of any consumers or the easy possibility of consumers (kernel modification and recompile required) suggests that this is simply an unused feature. Update README to remove this TODO, and a TODO regarding IPX/IP encapsulation which was also removed a few years ago. MFC after: 1 week |
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|---|---|---|
| .. | ||
| ipx_cksum.c | ||
| ipx_if.h | ||
| ipx_input.c | ||
| ipx_outputfl.c | ||
| ipx_pcb.c | ||
| ipx_pcb.h | ||
| ipx_proto.c | ||
| ipx_usrreq.c | ||
| ipx_var.h | ||
| ipx.c | ||
| ipx.h | ||
| README | ||
| spx_debug.c | ||
| spx_debug.h | ||
| spx_reass.c | ||
| spx_timer.h | ||
| spx_usrreq.c | ||
| spx_var.h | ||
| spx.h | ||
$FreeBSD$
This protocol implements IPX/SPX over Ethernet_II frame type 0x8137.
Please note: the SPX implementation may require further work and testing
to insure proper operation.
Mike Mitchell, Network Engineer
AMTECH Systems Corporation, Technology and Manufacturing
8600 Jefferson Street, Albuquerque, New Mexico 87113 (505) 856-8000
supervisor@alb.asctmd.com
John Hay
Some Company
Some Address
jhay@mikom.csir.co.za
Adapted for multi-processor, multi-threaded network stack by Robert N. M.
Watson, Computer Laboratory, University of Cambridge.
--- Copyright Information ---
/*-
Copyright (c) 1984, 1985, 1986, 1987, 1993
The Regents of the University of California. All rights reserved.
Modifications Copyright (c) 1995, Mike Mitchell
Modifications Copyright (c) 1995, John Hay
Modifications Copyright (c) 2004-2006 Robert N. M. Watson
*/
--- TODO ---
(1) netipx default socket buffer sizes are very small by contemporary
standards, and should be increased following testing and measurement.
(2) SPX will free the PCB and socket buffer memory on close(), which means
close() in effects terminates the transfer of any outstanding buffered
but unsent data. As with TCP, it should instead grab its own
reference to the socket so that it is not released, as hold onto it
until the data transfer is complete.