freebsd kernel with SKQ
2688b2b8a5
are unaware of RFC 3542 can construct control messages. The kernel disallows mixing RFC 2292 behaviour with RFC 3542 behaviour. Only sockets that have specifically been marked as using the RFC 2292 API can use RFC 2292 specific options. This is all good and well, but libc itself seems inconsistent with this. The root cause of this inconsistency seems to relate to the definitions of IPV6_HOPOPTS and IPV6_DSTOPTS. They are defined in RFC 2292 and re-used in RFC 3542, yet have distinct values in the kernel. It's for this reason that the kernel also has definitions for IPV6_2292HOPOPTS and IPV6_2292DSTOPTS. Not so in libc. For example: some program calls inet6_option_init() (defined by RFC 2292) with the RFC 2292 defined IPV6_HOPOPTS and IPV6_DSTOPTS. Before RFC 3542, this was translated to values of 22 and 23 (resp.) The libc implementation correctly checks that only options IPV6_HOPOPTS and IPV6_DSTOPTS are given (as per RFC 2292) but since these defines have taken on the values defined by RFC 3542 (values 49 and 50 resp,) rejects the correct option values (22 and 23) passed said program and returns -1. The precisie fix is to have inet6_option_init() and friends only accept the RFC 2292 defined IPV6_HOPOPTS & IPV6_DSTOPTS, but that breaks other code (like mld6query(8)), which seem to not be aware of RFC 3542 and how it hi-jacked the option names. So the best fix is to accept the options from both. Obtained from: Juniper Networks, Inc. MFC after: 1 week |
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| bin | ||
| cddl | ||
| contrib | ||
| crypto | ||
| etc | ||
| games | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| lib | ||
| libexec | ||
| release | ||
| rescue | ||
| sbin | ||
| secure | ||
| share | ||
| sys | ||
| tests | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| COPYRIGHT | ||
| LOCKS | ||
| MAINTAINERS | ||
| Makefile | ||
| Makefile.inc1 | ||
| ObsoleteFiles.inc | ||
| README | ||
| UPDATING | ||
This is the top level of the FreeBSD source directory. This file was last revised on: $FreeBSD$ For copyright information, please see the file COPYRIGHT in this directory (additional copyright information also exists for some sources in this tree - please see the specific source directories for more information). The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree, the most commonly used one being ``world'', which rebuilds and installs everything in the FreeBSD system from the source tree except the kernel, the kernel-modules and the contents of /etc. The ``world'' target should only be used in cases where the source tree has not changed from the currently running version. See: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html for more information, including setting make(1) variables. The ``buildkernel'' and ``installkernel'' targets build and install the kernel and the modules (see below). Please see the top of the Makefile in this directory for more information on the standard build targets and compile-time flags. Building a kernel is a somewhat more involved process, documentation for which can be found at: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html And in the config(8) man page. Note: If you want to build and install the kernel with the ``buildkernel'' and ``installkernel'' targets, you might need to build world before. More information is available in the handbook. The sample kernel configuration files reside in the sys/<arch>/conf sub-directory (assuming that you've installed the kernel sources), the file named GENERIC being the one used to build your initial installation kernel. The file NOTES contains entries and documentation for all possible devices, not just those commonly used. It is the successor of the ancient LINT file, but in contrast to LINT, it is not buildable as a kernel but a pure reference and documentation file. Source Roadmap: --------------- bin System/user commands. cddl Various commands and libraries under the Common Development and Distribution License. contrib Packages contributed by 3rd parties. crypto Cryptography stuff (see crypto/README). etc Template files for /etc. games Amusements. gnu Various commands and libraries under the GNU Public License. Please see gnu/COPYING* for more information. include System include files. kerberos5 Kerberos5 (Heimdal) package. lib System libraries. libexec System daemons. release Release building Makefile & associated tools. rescue Build system for statically linked /rescue utilities. sbin System commands. secure Cryptographic libraries and commands. share Shared resources. sys Kernel sources. tools Utilities for regression testing and miscellaneous tasks. usr.bin User commands. usr.sbin System administration commands. For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html