September 2013 - Devel - libvirt List Archives

[libvirt] [PATCH v4 0/2] don't masquerade local broadcast/multicast packets
by Laszlo Ersek 25 Sep '13

25 Sep '13

v2->v4 changes (v3 went in a different direction): - Rename iptables(Add|Remove)ForwardDontMasquerade to iptables(Add|Remove)DontMasquerade [Laine]. Masquerading local broadcast breaks DHCP replies for some clients. There has been a report about broken local multicast too. (See references in the patches.) Testing: Chain POSTROUTING (policy ACCEPT 2 packets, 134 bytes) pkts bytes target prot opt in out source destination 0 0 RETURN all -- * * 192.168.122.0/24 224.0.0.0/24 0 0 RETURN all -- * * 192.168.122.0/24 255.255.255.255 0 0 MASQUERADE tcp -- * * 192.168.122.0/24 !192.168.122.0/24 masq ports: 1024-65535 0 0 MASQUERADE udp -- * * 192.168.122.0/24 !192.168.122.0/24 masq ports: 1024-65535 0 0 MASQUERADE all -- * * 192.168.122.0/24 !192.168.122.0/24 + make check, make syntax-check, virsh net-start / net-destroy. Laszlo Ersek (2): util/viriptables: add/remove rules that short-circuit masquerading bridge driver: don't masquerade local subnet broadcast/multicast packets src/util/viriptables.h | 8 ++++ src/network/bridge_driver_linux.c | 70 +++++++++++++++++++++++++++++-- src/util/viriptables.c | 88 +++++++++++++++++++++++++++++++++++++++ src/libvirt_private.syms | 2 + 4 files changed, 164 insertions(+), 4 deletions(-) -- 1.8.3.1

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[libvirt] [PATCH]util: Helper function for checking existence of hook files for specific driver
by Chen Hanxiao 25 Sep '13

25 Sep '13

From: Chen Hanxiao <chenhanxiao(a)cn.fujitsu.com> We refresh the status of hook scripts only when start/restart libvirt or reloads its configuration. But hooks scripts may be changed. This function will help to check its existence. And we do not need to start/restart libvirt if we add/remove hook files. Signed-off-by: Chen Hanxiao <chenhanxiao(a)cn.fujitsu.com> --- src/util/virhook.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/src/util/virhook.c b/src/util/virhook.c index 159efdb..c4a1a15 100644 --- a/src/util/virhook.c +++ b/src/util/virhook.c @@ -129,6 +129,12 @@ virHookCheck(int no, const char *driver) { return ret; } +static int +virHookDriverCheck(int driver) { + return virHookCheck(driver, + virHookDriverTypeToString(driver)); +} + /* * virHookInitialize: * @@ -170,11 +176,12 @@ virHookPresent(int driver) { if ((driver < VIR_HOOK_DRIVER_DAEMON) || (driver >= VIR_HOOK_DRIVER_LAST)) return 0; - if (virHooksFound == -1) + if (virHookDriverCheck(driver) != 1) { + VIR_DEBUG("Driver %s hooks files not found", + virHookDriverTypeToString(driver)); return 0; + } - if ((virHooksFound & (1 << driver)) == 0) - return 0; return 1; } -- 1.8.2.1

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[libvirt] [PATCH v3 0/4] don't masquerade local broadcast/multicast packets
by Laszlo Ersek 25 Sep '13

25 Sep '13

Masquerading local broadcast breaks DHCP replies for some clients. There has been a report about broken local multicast too. (See references in the patches.) Regarding multicast, right now the series disables masquerading for the most restrictive local multicast range only. v2->v3 changes: - Rename iptables(Add|Remove)ForwardDontMasquerade to iptables(Add|Remove)DontMasquerade [Laine]. - Pass (address, prefix) pairs as both source and destination parameters to these functions. - Introduce virPfxSocketAddr structure for simpler handling of said (address, prefix) pairs. - Also prevent masquerading of directed broadcast [Laine]. - Start to get serious about pointers-to-const. Testing: - "make check" and "make syntax-check" pass, - thanks to the great docs on libvirt.org (compiling & deployment) I even managed to test this on my RHEL-6 laptop, with repeated net-start / net-destroy commands. Chain POSTROUTING (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 0 0 RETURN all -- * * 192.168.122.0/24 224.0.0.0/24 0 0 RETURN all -- * * 192.168.122.0/24 192.168.122.255 0 0 RETURN all -- * * 192.168.122.0/24 255.255.255.255 0 0 MASQUERADE tcp -- * * 192.168.122.0/24 !192.168.122.0/24 masq ports: 1024-65535 0 0 MASQUERADE udp -- * * 192.168.122.0/24 !192.168.122.0/24 masq ports: 1024-65535 0 0 MASQUERADE all -- * * 192.168.122.0/24 !192.168.122.0/24 Laszlo Ersek (4): iptablesFormatNetwork(): constify target of "netaddr" parameter util/viriptables: add/remove rules that short-circuit masquerading virSocketAddrBroadcastByPrefix(): constify target of "addr" parameter bridge driver: don't masquerade local subnet broadcast/multicast packets src/util/viriptables.h | 11 +++ src/util/virsocketaddr.h | 8 +- src/network/bridge_driver_linux.c | 151 +++++++++++++++++++++++++++++++++++++- src/util/viriptables.c | 84 ++++++++++++++++++++- src/util/virsocketaddr.c | 8 +- src/libvirt_private.syms | 2 + 6 files changed, 251 insertions(+), 13 deletions(-) -- 1.8.3.1

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[libvirt] [PATCH]util: Refresh virHook before checking its existence
by Chen Hanxiao 25 Sep '13

25 Sep '13

From: Chen Hanxiao <chenhanxiao(a)cn.fujitsu.com> We refresh the status of hook scripts only when start/stop libvirt, or reload its configuration. But the status of hooks scripts may be changed. We need to refresh its status before checking its existence. Signed-off-by: Chen Hanxiao <chenhanxiao(a)cn.fujitsu.com> --- src/util/virhook.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/src/util/virhook.c b/src/util/virhook.c index 159efdb..5500f62 100644 --- a/src/util/virhook.c +++ b/src/util/virhook.c @@ -170,11 +170,15 @@ virHookPresent(int driver) { if ((driver < VIR_HOOK_DRIVER_DAEMON) || (driver >= VIR_HOOK_DRIVER_LAST)) return 0; - if (virHooksFound == -1) - return 0; + if (virHookInitialize() > 0) { + if (virHooksFound == -1) + return 0; - if ((virHooksFound & (1 << driver)) == 0) + if ((virHooksFound & (1 << driver)) == 0) + return 0; + } else { return 0; + } return 1; } -- 1.8.2.1

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Re: [libvirt] virDomainGetInfo() returns wrong domain state
by Panday Ritesh Sharma (rpanday) 25 Sep '13

25 Sep '13

Hi Libvirt support team, Could you please help me with below query. Regards Ritesh Sharma From: Panday Ritesh Sharma (rpanday) Sent: Tuesday, September 24, 2013 8:22 PM To: 'libvir-list(a)redhat.com'; 'libvirt-users(a)redhat.com'; Vinay Shankarkumar (vinays) Cc: Basavaraj Bendigeri (bbendige); q-se-dev(mailer list) Subject: virDomainGetInfo() returns wrong domain state Hi Team, I have written below code to get the VM state at run time. I found, though the VM is in shut-off state, when I use the function virDomainGetInfo(); I get state as running. Could you please let me know what wrong I am doing. To know the actual VM state I used 'virsh list' and it clearly shows the VM is in shut-off state. Please find the log and code snippet below. Log from virsh: ================= [host:~]$ virsh list --all Id Name State ---------------------------------------------------- 1 calvados running 2 LCXR running 3 default-sdr--1 running - test--2 shut off Out put: ========= 04.03.06.698923264:INFO: vm_libvirt_state_to_vmm_state: state returned is 1 Note : Here 1 is actually running. Code snippet: =============== enum cidl_vmm_vm_state vm_libvirt_state_to_vmm_state(unsigned char libvirt_state) { enum cidl_vmm_vm_state state; INFO("%s: state returned is %u\n",__FUNCTION__, libvirt_state); <<<<<<<<<<<<<<<<<< if (libvirt_state == VIR_DOMAIN_RUNNING) { state = cidl_vm_state_running; } else if ((libvirt_state == VIR_DOMAIN_PAUSED) || (libvirt_state == VIR_DOMAIN_BLOCKED)) { state = cidl_vm_state_paused; } else if (libvirt_state == VIR_DOMAIN_SHUTOFF) { state = cidl_vm_state_defined; } else { state = cidl_vm_state_not_defined; } return state; } virDomainInfo res_util; virDomainPtr dom = virDomainLookupByName(virt, private_names[vm_idx]); res = virDomainGetInfo(dom, &res_util); vminfo[vm_idx].vm_state = vm_libvirt_state_to_vmm_state(res_util.state); Regards Ritesh Sharma

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[libvirt] bug. libvirt related to selinux.
by yue 25 Sep '13

25 Sep '13

hi,all when 'virsh start testname-1' failed, but i can start it throught commandline which is copy from libvirtd.log. selinux is disabled now. ---------------- libvirtError: internal error Process exited while reading console log output: char device redirected to /dev/pts/3 qemu-kvm: -drive file=/rhev/data-center/7828f2ae-955e-4e4b-a4bb-43807629dc52/d028d521-d4a9-4dd7-a0fe-3e9b60e7c4e4/images/ac025dc1-4e25-4b71-8c56-88dcb61b9f09/c1bfddb4-3562-4893-9df8-3f3239b277a9,if=none,id=drive-ide0-0-0,format=qcow2,serial=ac025dc1-4e25-4b71-8c56-88dcb61b9f09,cache=none,werror=stop,rerror=stop,aio=native: could not open disk image /rhev/data-center/7828f2ae-955e-4e4b-a4bb-43807629dc52/d028d521-d4a9-4dd7-a0fe-3e9b60e7c4e4/images/ac025dc1-4e25-4b71-8c56-88dcb61b9f09/c1bfddb4-3562-4893-9df8-3f3239b277a9: Operation not permitted audit.log type=VIRT_CONTROL msg=audit(1379810795.213:41569): user pid=1637 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:virtd_t:s0-s0:c0.c1023 msg='virt=kvm op=start reason=booted vm="testname-1" uuid=24f7e975-9aa5-4a14-b0f0-590add14c8b5 vm-pid=-1 exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=failed'

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[libvirt] [PATCH v2 0/2] don't masquerade local broadcast/multicast packets
by Laszlo Ersek 24 Sep '13

24 Sep '13

Masquerading local broadcast breaks DHCP replies for some clients. There has been a report about broken local multicast too. (See references in the patches.) Testing: build tested the upstream series. Tested the RHEL-6.4.z and RHEL-7.0 backports with OVMF netboot on virbr0. Changes between v1 (at http://www.redhat.com/archives/libvir-list/2013-May/msg01872.html ) and v2: - forward-ported to current upstream master (commit 49a5262d). This includes conflict resolution for: commit 477a619e1b37694e3c59c0d6c84ede6d2e28b878 Author: Roman Bogorodskiy <bogorodskiy(a)gmail.com> Date: Fri Jun 28 00:52:30 2013 -0400 Drop iptablesContext in both patches #1 and #2, and for commit 4ac708f250867f65091a20b153c204862d389cb9 Author: Roman Bogorodskiy <bogorodskiy(a)gmail.com> Date: Wed Jul 24 16:22:54 2013 +0400 bridge driver: extract platform specifics in patch #2. Laszlo Ersek (2): util/viriptables: add/remove rules that short-circuit masquerading bridge driver: don't masquerade local subnet broadcast/multicast packets src/util/viriptables.h | 8 ++++ src/network/bridge_driver_linux.c | 70 +++++++++++++++++++++++++++++-- src/util/viriptables.c | 88 +++++++++++++++++++++++++++++++++++++++ src/libvirt_private.syms | 2 + 4 files changed, 164 insertions(+), 4 deletions(-) -- 1.8.3.1

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[libvirt] [PATCH] Fix format specifier for OOM test fprintfs
by Daniel P. Berrange 24 Sep '13

24 Sep '13

From: "Daniel P. Berrange" <berrange(a)redhat.com> The testutils.c file had some fprintfs which had not been converted from %d to %zu, when 'testCounter' change to be a size_t. This was a build breaker if --enable-test-oom was enabled Pushed as a build fix Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- tests/testutils.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tests/testutils.c b/tests/testutils.c index a215f3f..45882c5 100644 --- a/tests/testutils.c +++ b/tests/testutils.c @@ -717,9 +717,9 @@ int virtTestMain(int argc, approxAlloc = virAllocTestCount(); testCounter++; if (virTestGetDebug()) - fprintf(stderr, "%d) OOM...\n", testCounter); + fprintf(stderr, "%zu) OOM...\n", testCounter); else - fprintf(stderr, "%d) OOM of %d allocs ", testCounter, approxAlloc); + fprintf(stderr, "%zu) OOM of %d allocs ", testCounter, approxAlloc); if (mp) { size_t i; -- 1.8.3.1

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[libvirt] [PATCH 0/4] Improve passthrough of early errors from qemu log
by Peter Krempa 24 Sep '13

24 Sep '13

Upgrade error messages in some cases of early failure. See 4/4 for better explanation. Peter Krempa (4): qemu_process: Make qemuProcessReadLog() more versatile and reusable qemu: monitor: Add infrastructure to access VM logs for better err msgs qemu: monitor: Produce better errors on monitor hangup qemu: Wire up better early error reporting src/qemu/qemu_monitor.c | 97 ++++++++++++++++++++++++++++++++++++++++++++++--- src/qemu/qemu_monitor.h | 2 + src/qemu/qemu_process.c | 54 +++++++++++++++++++-------- src/qemu/qemu_process.h | 2 + 4 files changed, 133 insertions(+), 22 deletions(-) -- 1.8.3.2

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[libvirt] [PATCHv2 0/3] Change preference of default PCI passthrough type to VFIO
by Peter Krempa 24 Sep '13

24 Sep '13

Peter Krempa (3): qemu: hostdev: Refactor PCI passhrough handling qemu: hostdev: Add checks if PCI passthrough is availabe in the host qemu: Prefer VFIO for PCI device passthrough docs/formatdomain.html.in | 9 ++- src/conf/domain_conf.h | 2 +- src/qemu/qemu_command.c | 28 ++++++--- src/qemu/qemu_hostdev.c | 143 ++++++++++++++++++++++++++++++++++++++++++++++ src/qemu/qemu_hostdev.h | 5 ++ src/qemu/qemu_hotplug.c | 29 ++++++---- src/qemu/qemu_process.c | 6 ++ tests/qemuxml2argvtest.c | 11 ++++ 8 files changed, 208 insertions(+), 25 deletions(-) -- 1.8.3.2

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