76eadbeca7
The only thing is used from this code is ipip_output() function, that does IPIP encapsulation. Other parts of XF_IP4 code were removed in r275133. Also it isn't possible to configure the use of XF_IP4, nor from userland via setkey(8), nor from the kernel. Simplify the ipip_output() function and rename it to ipsec_encap(). * move IP_DF handling from ipsec4_process_packet() into ipsec_encap(); * since ipsec_encap() called from ipsec[64]_process_packet(), it is safe to assume that mbuf is contiguous at least to IP header for used IP version. Remove all unneeded m_pullup(), m_copydata and related checks. * use V_ip_defttl and V_ip6_defhlim for outer headers; * use V_ip4_ipsec_ecn and V_ip6_ipsec_ecn for outer headers; * move all diagnostic messages to the ipsec_encap() callers; * simplify handling of ipsec_encap() results: if it returns non zero value, print diagnostic message and free mbuf. * some style(9) fixes. Differential Revision: https://reviews.freebsd.org/D2303 Reviewed by: glebius Sponsored by: Yandex LLC
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. 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. tests Regression tests which can be run by Kyua. See tests/README for additional information. 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