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function, pru_close, to notify protocols that the file descriptor or other consumer of a socket is closing the socket. pru_abort is now a notification of close also, and no longer detaches. pru_detach is no longer used to notify of close, and will be called during socket tear-down by sofree() when all references to a socket evaporate after an earlier call to abort or close the socket. This means detach is now an unconditional teardown of a socket, whereas previously sockets could persist after detach of the protocol retained a reference. This faciliates sharing mutexes between layers of the network stack as the mutex is required during the checking and removal of references at the head of sofree(). With this change, pru_detach can now assume that the mutex will no longer be required by the socket layer after completion, whereas before this was not necessarily true. Reviewed by: gnn |
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.. | ||
ipx_cksum.c | ||
ipx_if.h | ||
ipx_input.c | ||
ipx_ip.c | ||
ipx_ip.h | ||
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_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. (3) Raw socket capture of IPX output intercepts packets in the SPX output routine in order to feed them back into the raw socket. This results in recursion into the socket code in the transmit path; instead, captured packets should be fed into a netisr that reinjects them into raw sockets from a new (asynchronous) context. (4) IPX over IP encapsulation needs work to make it properly MPSAFE.