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the MAC label referenced from 'struct socket' in the IPv4 and IPv6-based protocols. This permits MAC labels to be checked during network delivery operations without dereferencing inp->inp_socket to get to so->so_label, which will eventually avoid our having to grab the socket lock during delivery at the network layer. This change introduces 'struct inpcb' as a labeled object to the MAC Framework, along with the normal circus of entry points: initialization, creation from socket, destruction, as well as a delivery access control check. For most policies, the inpcb label will simply be a cache of the socket label, so a new protocol switch method is introduced, pr_sosetlabel() to notify protocols that the socket layer label has been updated so that the cache can be updated while holding appropriate locks. Most protocols implement this using pru_sosetlabel_null(), but IPv4/IPv6 protocols using inpcbs use the the worker function in_pcbsosetlabel(), which calls into the MAC Framework to perform a cache update. Biba, LOMAC, and MLS implement these entry points, as do the stub policy, and test policy. Reviewed by: sam, bms Obtained from: TrustedBSD Project Sponsored by: DARPA, Network Associates Laboratories |
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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 --- 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