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libvirt
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Laine Stump fd5b15ff1a Add iptables rule to fixup DHCP response checksum. 
This patch attempts to take advantage of a newly added netfilter
module to correct for a problem with some guest DHCP client
implementations when used in conjunction with a DHCP server run on the
host systems with packet checksum offloading enabled.

The problem is that, when the guest uses a RAW socket to read the DHCP
response packets, the checksum hasn't yet been fixed by the IP stack,
so it is incorrect.

The fix implemented here is to add a rule to the POSTROUTING chain of
the mangle table in iptables that fixes up the checksum for packets on
the virtual network's bridge that are destined for the bootpc port (ie
"dhcpc", ie port 68) port on the guest.

Only very new versions of iptables will have this support (it will be
in the next upstream release), so a failure to add this rule only
results in a warning message. The iptables patch is here:

  http://patchwork.ozlabs.org/patch/58525/

A corresponding kernel module patch is also required (the backend of
the iptables patch) and that will be in the next release of the
kernel.
 		2010-08-02 11:34:14 -04:00
.gnulib@1629006348 build: fix some mingw issues 2010-06-10 06:05:31 -06:00
build-aux build: update gnulib 2010-03-26 19:16:37 +01:00
daemon build: distribute libvirt_qemu.syms 2010-07-29 14:19:40 -06:00
docs Remove duplicate </p> from downloads.html.in 2010-08-01 01:54:40 +02:00
examples Add openauth example to demonstrate a custom auth callback 2010-07-13 13:50:27 +02:00
include build: fix VPATH builds 2010-07-26 12:06:48 -06:00
m4 build: restore operation of bit-rotted 'make cov' 2010-07-29 13:41:25 -06:00
po lxc: Fix return values of veth.c functions 2010-07-29 14:08:35 -04:00
proxy build: fix up some compiler flags 2010-05-17 09:12:42 -06:00
python Fix SEGV on exit after domainEventDeregister() 2010-07-23 13:26:40 -06:00
src Add iptables rule to fixup DHCP response checksum. 2010-08-02 11:34:14 -04:00
tests build: restore operation of bit-rotted 'make cov' 2010-07-29 13:41:25 -06:00
tools Fix a NULL dereference in the case that the arg in question 2010-07-20 12:51:12 -04:00
.gitignore build: restore operation of bit-rotted 'make cov' 2010-07-29 13:41:25 -06:00
.gitmodules make .gnulib a submodule 2009-07-08 16:17:51 +02:00
.mailmap Fix .mailmap after accidental wrong committer address 2010-07-23 10:43:45 +01:00
.x-sc_avoid_ctype_macros exempt gnulib from ctype-macros prohibition 2008-10-28 17:36:31 +00:00
.x-sc_avoid_if_before_free avoid a "make syntax-check" failure 2009-07-09 20:00:37 +02:00
.x-sc_avoid_write Fully asynchronous monitor I/O processing 2009-11-10 13:27:18 +00:00
.x-sc_m4_quote_check syntax-check: enable more checks 2009-02-03 13:08:36 +00:00
.x-sc_prohibit_HAVE_MBRTOWC maint: sync from coreutils 2009-01-29 18:06:19 +00:00
.x-sc_prohibit_VIR_ERR_NO_MEMORY Various syntax-check fixes. 2009-10-26 10:34:05 +01:00
.x-sc_prohibit_always_true_header_tests build: update gnulib 2010-05-06 14:35:38 -06:00
.x-sc_prohibit_asprintf add .x-sc_prohibit_asprintf 2008-12-23 13:40:42 +00:00
.x-sc_prohibit_gethostby Various syntax-check fixes. 2009-10-26 10:34:05 +01:00
.x-sc_prohibit_gethostname Add a new syntax-check rule for gethostname. 2009-10-26 10:34:27 +01:00
.x-sc_prohibit_gettext_noop build: fix syntax-check problems 2010-04-12 16:43:05 -06:00
.x-sc_prohibit_have_config_h maint: sync from coreutils 2009-01-29 18:06:19 +00:00
.x-sc_prohibit_nonreentrant Tighten up nonreentrant syntax-check. 2009-10-26 10:33:42 +01:00
.x-sc_prohibit_readlink Add a rule to check for uses of readlink. 2010-01-22 09:42:35 -05:00
.x-sc_prohibit_strcmp exempt gnulib/ from "make syntax-check" strcmp prohibition 2008-05-14 21:18:27 +00:00
.x-sc_prohibit_strcmp_and_strncmp Ignore docs/ directory for strcmp() syntax check 2009-11-23 11:58:13 +00:00
.x-sc_prohibit_strncpy Various syntax-check fixes. 2009-10-26 10:34:05 +01:00
.x-sc_prohibit_test_minus_ao build: fix syntax-check problems 2010-04-12 16:43:05 -06:00
.x-sc_require_config_h Various syntax-check fixes. 2009-10-26 10:34:05 +01:00
.x-sc_require_config_h_first Misc syntax-check fixes 2009-09-21 14:41:47 +01:00
.x-sc_trailing_blank build: exempt *.ico files from the trailing blank check 2008-10-16 13:28:07 +00:00
.x-sc_unmarked_diagnostics build: import latest gnulib 2010-04-02 10:18:55 -06:00
AUTHORS authors: update my authors details 2010-07-09 23:21:00 +10:00
COPYING.LIB remove all trailing blank lines 2009-07-16 15:06:42 +02:00
ChangeLog-old generate ChangeLog from git logs into distribution tarball 2009-07-08 16:17:51 +02:00
HACKING docs: hacking: explain why using curly braces well is important 2010-05-04 15:41:21 +02:00
Makefile.am build: restore operation of bit-rotted 'make cov' 2010-07-29 13:41:25 -06:00
Makefile.nonreentrant syntax-check: enable prohibit_nonreentrant 2009-02-05 16:28:41 +00:00
README Correct typos in the documentation (Atsushi SAKAI) 2008-01-24 10:15:13 +00:00
README-hacking maint: relax git minimum version 2010-02-24 14:29:27 -05:00
TODO Remove all trailing blanks; turn on the rule to detect them. 2008-02-05 19:27:37 +00:00
acinclude.m4 maint: turn on gcc logical-op checking 2010-07-28 15:25:36 +02:00
autobuild.sh autobuild.sh: avoid bashism 2010-06-04 10:03:52 -06:00
autogen.sh build: improve check for out-of-date .gnulib submodule 2010-04-02 15:49:32 -06:00
bootstrap build: fix some mingw issues 2010-06-10 06:05:31 -06:00
bootstrap.conf maint: add gnulib gettimeofday module 2010-06-25 07:46:28 -06:00
cfg.mk Qemu remote protocol. 2010-07-23 17:30:33 -04:00
configure.ac build: restore operation of bit-rotted 'make cov' 2010-07-29 13:41:25 -06:00
libvirt.pc.in * libvirt.pc.in: applied patch from Daniel Berrange to fix --cflags 2006-03-24 13:18:12 +00:00
libvirt.spec.in man pages: update authors and copyright notice for libvirtd and virsh 2010-07-17 04:51:01 +10:00
mingw32-libvirt.spec.in build: fix some mingw issues 2010-06-10 06:05:31 -06:00

README 

         LibVirt : simple API for virtualization

  Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.

Daniel Veillard <veillard@redhat.com>