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Stefan Berger cf6f8b9a97 nwfilter: extend nwfilter reload support 
In this patch I am extending and fixing the nwfilter module's reload support to stop all ongoing threads (for learning IP addresses of interfaces) and rebuild the filtering rules of all interfaces of all VMs when libvirt is started. Now libvirtd rebuilds the filters upon the SIGHUP signal and libvirtd restart.

About the patch: The nwfilter functions require a virConnectPtr. Therefore I am opening a connection in qemudStartup, which later on needs to be closed outside where the driver lock is held since otherwise it ends up in a deadlock due to virConnectClose() trying to lock the driver as well.

I have tested this now for a while with several machines running and needing the IP address learner thread(s). The rebuilding of the firewall rules seems to work fine following libvirtd restart or a SIGHUP. Also the termination of libvirtd worked fine.
2010-08-16 12:59:54 -04:00
.gnulib@7ba06c8ff3 build: allow mingw VPATH build 2010-08-14 12:51:55 -06:00
build-aux build: update gnulib 2010-03-26 19:16:37 +01:00
daemon build-sys: fix build when daemon is disabled by not installing libvirtd.8 2010-08-06 06:45:18 -06:00
docs allow memballoon type of none to desactivate it 2010-08-11 11:28:17 +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 Release of libvirt-0.8.3 2010-08-04 15:03:25 +02:00
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 nwfilter: extend nwfilter reload support 2010-08-16 12:59:54 -04:00
tests esx: Explicitly disable unused floppy devices 2010-08-14 20:16:14 +02:00
tools Fix build error in virsh.c 2010-08-03 10:37:34 -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 maint: update an email address preference 2010-08-10 08:13:22 -06:00
.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_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_HAVE_MBRTOWC 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_prohibit_VIR_ERR_NO_MEMORY Various syntax-check fixes. 2009-10-26 10:34:05 +01:00
.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
acinclude.m4 maint: turn on gcc logical-op checking 2010-07-28 15:25:36 +02:00
AUTHORS maint: update an email address preference 2010-08-10 08:13:22 -06:00
autobuild.sh autobuild.sh: avoid bashism 2010-06-04 10:03:52 -06:00
autogen.sh Avoid unnecessary bootstrap runs in VPATH builds 2010-08-11 09:20:26 +02:00
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 Avoid unnecessary bootstrap runs in VPATH builds 2010-08-11 09:20:26 +02:00
ChangeLog-old generate ChangeLog from git logs into distribution tarball 2009-07-08 16:17:51 +02:00
configure.ac Generate libvirt_qemu.def from libvirt_qemu.syms for MinGW builds 2010-08-14 19:19:24 +02:00
COPYING.LIB remove all trailing blank lines 2009-07-16 15:06:42 +02:00
HACKING docs: hacking: explain why using curly braces well is important 2010-05-04 15:41:21 +02:00
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 bridge: Add --dhcp-no-override option to dnsmasq 2010-08-12 16:38:19 +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
mingw32-libvirt.spec.in build: fix some mingw issues 2010-06-10 06:05:31 -06:00
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

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>