[libvirt] [PATCH v2] qemu: ensure vhostuser FD is initialized to -1
by Daniel P. Berrangé
The video private data was not initializing the vhostuser FD
causing us to attempt to close FD 0 many times over.
Fixes
commit ca60ecfa8cc1bd85baf7137dd1864d5f00f019f0
Author: Marc-André Lureau <marcandre.lureau(a)redhat.com>
Date: Mon Sep 23 14:44:36 2019 +0400
qemu: add qemuDomainVideoPrivate
Since the test suite does not invoke qemuExtDevicesStart(), no
vhost_user_fd will be present when generating test XML. To deal
with this we can must a fake FD number. While the current XML
is using FD == 0, we pick a very interesting number that's unlikely
to be a real FD, so that we're more likely to see any mistakes
closing the invalid FD.
Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com>
---
In v2:
- Fix FD initialization in test suite
src/qemu/qemu_domain.c | 2 ++
.../vhost-user-gpu-secondary.x86_64-latest.args | 4 ++--
.../qemuxml2argvdata/vhost-user-vga.x86_64-latest.args | 2 +-
tests/qemuxml2argvdata/virtio-options.args | 2 +-
tests/qemuxml2argvtest.c | 10 ++++++++++
5 files changed, 16 insertions(+), 4 deletions(-)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index e8e895d9aa..e2b78c2457 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -1367,6 +1367,8 @@ qemuDomainVideoPrivateNew(void)
if (!(priv = virObjectNew(qemuDomainVideoPrivateClass)))
return NULL;
+ priv->vhost_user_fd = -1;
+
return (virObjectPtr) priv;
}
diff --git a/tests/qemuxml2argvdata/vhost-user-gpu-secondary.x86_64-latest.args b/tests/qemuxml2argvdata/vhost-user-gpu-secondary.x86_64-latest.args
index 58f49595e7..77643d31c0 100644
--- a/tests/qemuxml2argvdata/vhost-user-gpu-secondary.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/vhost-user-gpu-secondary.x86_64-latest.args
@@ -31,8 +31,8 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
-device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
-device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 \
--chardev socket,id=chr-vu-video0,fd=0 \
--chardev socket,id=chr-vu-video1,fd=0 \
+-chardev socket,id=chr-vu-video0,fd=1729 \
+-chardev socket,id=chr-vu-video1,fd=1729 \
-device vhost-user-vga,id=video0,max_outputs=1,chardev=chr-vu-video0,bus=pci.0,\
addr=0x2 \
-device vhost-user-gpu-pci,id=video1,max_outputs=1,chardev=chr-vu-video1,\
diff --git a/tests/qemuxml2argvdata/vhost-user-vga.x86_64-latest.args b/tests/qemuxml2argvdata/vhost-user-vga.x86_64-latest.args
index 6640d86fa5..dd5f9800d9 100644
--- a/tests/qemuxml2argvdata/vhost-user-vga.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/vhost-user-vga.x86_64-latest.args
@@ -31,7 +31,7 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
-device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
-device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 \
--chardev socket,id=chr-vu-video0,fd=0 \
+-chardev socket,id=chr-vu-video0,fd=1729 \
-device vhost-user-vga,id=video0,max_outputs=1,chardev=chr-vu-video0,bus=pci.0,\
addr=0x2 \
-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
diff --git a/tests/qemuxml2argvdata/virtio-options.args b/tests/qemuxml2argvdata/virtio-options.args
index 79216a5503..33ecd8f4e8 100644
--- a/tests/qemuxml2argvdata/virtio-options.args
+++ b/tests/qemuxml2argvdata/virtio-options.args
@@ -49,7 +49,7 @@ ats=on \
ats=on \
-device virtio-input-host-pci,id=input3,evdev=/dev/input/event1234,bus=pci.0,\
addr=0x12,iommu_platform=on,ats=on \
--chardev socket,id=chr-vu-video0,fd=0 \
+-chardev socket,id=chr-vu-video0,fd=1729 \
-device vhost-user-gpu-pci,id=video0,max_outputs=1,chardev=chr-vu-video0,\
bus=pci.0,addr=0x2,iommu_platform=on,ats=on \
-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0xc,iommu_platform=on,\
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 5bbac1c8b8..5f4e87aa6d 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -528,6 +528,16 @@ testCompareXMLToArgv(const void *data)
}
}
+ for (i = 0; i < vm->def->nvideos; i++) {
+ virDomainVideoDefPtr video = vm->def->videos[i];
+
+ if (video->backend == VIR_DOMAIN_VIDEO_BACKEND_TYPE_VHOSTUSER) {
+ qemuDomainVideoPrivatePtr vpriv = QEMU_DOMAIN_VIDEO_PRIVATE(video);
+
+ vpriv->vhost_user_fd = 1729;
+ }
+ }
+
if (flags & FLAG_SLIRP_HELPER) {
for (i = 0; i < vm->def->nnets; i++) {
virDomainNetDefPtr net = vm->def->nets[i];
--
2.21.0
5 years, 2 months
[libvirt] [PATCH] qemu: ensure vhostuser FD is initialized to -1
by Daniel P. Berrangé
The video private data was not initializing the vhostuser FD
causing us to attempt to close FD 0 many times over.
Fixes
commit ca60ecfa8cc1bd85baf7137dd1864d5f00f019f0
Author: Marc-André Lureau <marcandre.lureau(a)redhat.com>
Date: Mon Sep 23 14:44:36 2019 +0400
qemu: add qemuDomainVideoPrivate
Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com>
---
src/qemu/qemu_domain.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index bfd49beb21..bb81bda88e 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -1336,6 +1336,8 @@ qemuDomainVideoPrivateNew(void)
if (!(priv = virObjectNew(qemuDomainVideoPrivateClass)))
return NULL;
+ priv->vhost_user_fd = -1;
+
return (virObjectPtr) priv;
}
--
2.21.0
5 years, 2 months
[libvirt] [PATCH 0/5] Couple of NSS fixes
by Michal Privoznik
I'm trying to develop gethostbyaddr() and meanwhile I've noticed couple
of almost trivial patches.
Michal Prívozník (5):
nss: Compare addresses iff their family matches
nss: Drop needless free() in gethostbyname3()
nss: Don't leak @addr in gethostbyname4()
libvirt_nss.h: Separate function declarations with an empty line
tools: Record NSS dependency on symbols file
tools/Makefile.am | 8 ++++++++
tools/nss/libvirt_nss.c | 4 +---
tools/nss/libvirt_nss.h | 2 ++
tools/nss/libvirt_nss_leases.c | 6 ++++--
4 files changed, 15 insertions(+), 5 deletions(-)
--
2.21.0
5 years, 2 months
[libvirt] [PATCH] qemu: checkpoint: Do ACL check prior to snapshot interlocking
by Peter Krempa
The interlocking with snapshots is executed prior to the ACL check so if
a VM has snapshots invoking the checkpoint API may leak it's existance.
Introduced with the qemuDomainCheckpointCreateXML API implementation in
commit 5f4e0796503.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
Split out from the checkpoint refactor series as I didn't notice this
one originally.
src/qemu/qemu_driver.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index d5f5fd6990..3b2eb30606 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -17283,18 +17283,18 @@ qemuDomainCheckpointCreateXML(virDomainPtr domain,
if (!(vm = qemuDomObjFromDomain(domain)))
goto cleanup;
- if (virDomainSnapshotObjListNum(vm->snapshots, NULL, 0) > 0) {
- virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
- _("cannot create checkpoint while snapshot exists"));
- goto cleanup;
- }
-
priv = vm->privateData;
cfg = virQEMUDriverGetConfig(driver);
if (virDomainCheckpointCreateXMLEnsureACL(domain->conn, vm->def, flags) < 0)
goto cleanup;
+ if (virDomainSnapshotObjListNum(vm->snapshots, NULL, 0) > 0) {
+ virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
+ _("cannot create checkpoint while snapshot exists"));
+ goto cleanup;
+ }
+
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BITMAP_MERGE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("qemu binary lacks persistent bitmaps support"));
--
2.21.0
5 years, 2 months
[libvirt] [PATCH] qemu: make attaching disk partition to VM illegal
by Pavel Mores
The way in which the qemu driver generates aliases for disks involves
ignoring the partition number part of a target dev name. This means that
all partitions of a block device and the device itself all end up with the
same alias. If multiple such disks are specified in XML, the resulting
name clash makes qemu invocation fail.
Since attaching partitions to qemu VMs doesn't seem to make much sense
anyway, disallow partitions in target specifications altogether.
https://bugzilla.redhat.com/show_bug.cgi?id=1346265
Signed-off-by: Pavel Mores <pmores(a)redhat.com>
---
src/qemu/qemu_domain.c | 10 +++++++
.../disk-attaching-partition-invalid.xml | 27 +++++++++++++++++++
tests/qemuxml2argvtest.c | 1 +
3 files changed, 38 insertions(+)
create mode 100644 tests/qemuxml2argvdata/disk-attaching-partition-invalid.xml
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index e8e895d9aa..d03f3bed5f 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -5880,6 +5880,8 @@ qemuDomainDeviceDefValidateDisk(const virDomainDiskDef *disk,
{
const char *driverName = virDomainDiskGetDriver(disk);
virStorageSourcePtr n;
+ int idx;
+ int partition;
if (disk->src->shared && !disk->src->readonly &&
!qemuBlockStorageSourceSupportsConcurrentAccess(disk->src)) {
@@ -5948,6 +5950,14 @@ qemuDomainDeviceDefValidateDisk(const virDomainDiskDef *disk,
return -1;
}
+ int result = virDiskNameParse(disk->dst, &idx, &partition);
+ if (result != 0 || partition != 0) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("can't attach disk partition '%s', please attach whole disk instead"),
+ disk->dst);
+ return -1;
+ }
+
for (n = disk->src; virStorageSourceIsBacking(n); n = n->backingStore) {
if (qemuDomainValidateStorageSource(n, qemuCaps) < 0)
return -1;
diff --git a/tests/qemuxml2argvdata/disk-attaching-partition-invalid.xml b/tests/qemuxml2argvdata/disk-attaching-partition-invalid.xml
new file mode 100644
index 0000000000..591819fbb6
--- /dev/null
+++ b/tests/qemuxml2argvdata/disk-attaching-partition-invalid.xml
@@ -0,0 +1,27 @@
+<domain type='qemu'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219100</memory>
+ <currentMemory unit='KiB'>219100</currentMemory>
+ <vcpu placement='static'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-i686</emulator>
+ <disk type='file' device='disk'>
+ <driver name='qemu' type='raw'/>
+ <source file='/export/vmimages/1.raw'/>
+ <target dev='vdb1' bus='virtio'/>
+ </disk>
+ <controller type='usb' index='0'/>
+ <controller type='ide' index='0'/>
+ <controller type='pci' index='0' model='pci-root'/>
+ <memballoon model='virtio'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 5bbac1c8b8..b54b4bbf35 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1097,6 +1097,7 @@ mymain(void)
DO_TEST("disk-no-boot", NONE);
DO_TEST_PARSE_ERROR("disk-device-lun-type-invalid",
QEMU_CAPS_VIRTIO_SCSI);
+ DO_TEST_CAPS_LATEST_PARSE_ERROR("disk-attaching-partition-invalid");
DO_TEST_FAILURE("disk-usb-nosupport", NONE);
DO_TEST("disk-usb-device",
QEMU_CAPS_DEVICE_USB_STORAGE);
--
2.21.0
5 years, 2 months
[libvirt] [PATCH] tools: fix regression passing command with virt-login-shell
by Daniel P. Berrangé
It is documented that a command to run inside the container can be
passed with the -c arg.
virt-login-shell -c "ls -l /"
This fixes
commit 4feeb2d986b98013ebfb1d41ab6b9007b6cce6e2
Author: Daniel P. Berrangé <berrange(a)redhat.com>
Date: Thu Aug 1 10:58:31 2019 +0100
tools: split virt-login-shell into two binaries
Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com>
---
tools/virt-login-shell.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/tools/virt-login-shell.c b/tools/virt-login-shell.c
index f92cc0a749..f5aa02420b 100644
--- a/tools/virt-login-shell.c
+++ b/tools/virt-login-shell.c
@@ -38,11 +38,13 @@
int main(int argc, char **argv) {
char uidstr[INT_BUFSIZE_BOUND(uid_t)];
char gidstr[INT_BUFSIZE_BOUND(gid_t)];
- const char *const newargv[] = {
+ const char * newargv[] = {
LIBEXECDIR "/virt-login-shell-helper",
uidstr,
gidstr,
NULL,
+ NULL,
+ NULL,
};
char *newenv[] = {
NULL,
@@ -60,8 +62,15 @@ int main(int argc, char **argv) {
exit(EXIT_FAILURE);
}
- if (argc != 1) {
- fprintf(stderr, "%s: no arguments expected\n", argv[0]);
+ if (argc == 3) {
+ if (strcmp(argv[1], "-c") != 0) {
+ fprintf(stderr, "%s: syntax: %s [-c CMDSTR]\n", argv[0], argv[0]);
+ exit(EXIT_FAILURE);
+ }
+ newargv[3] = argv[1];
+ newargv[4] = argv[2];
+ } else if (argc != 1) {
+ fprintf(stderr, "%s: syntax: %s [-c CMDSTR]\n", argv[0], argv[0]);
exit(EXIT_FAILURE);
}
--
2.21.0
5 years, 3 months
[libvirt] [PATCH] network: allow DHCP/DNS/TFTP explicitly in OUTPUT rules
by Daniel P. Berrangé
From: Malina Salina <malina.salina(a)protonmail.com>
While the default iptables setup used by Fedora/RHEL distros
only restricts traffic on the INPUT and/or FORWARD rules,
some users might have custom firewalls that restrict the
OUTPUT rules too.
These can prevent DHCP/DNS/TFTP responses from dnsmasq
from reaching the guest VMs. We should thus whitelist
these protocols in the OUTPUT chain, as well as the
INPUT chain.
Signed-off-by: Malina Salina <malina.salina(a)protonmail.com>
Initial patch then modified to add unit tests and IPv6
support
Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com>
---
src/libvirt_private.syms | 2 +
src/network/bridge_driver_linux.c | 29 ++++++++++---
src/util/viriptables.c | 36 ++++++++++++++++
src/util/viriptables.h | 8 ++++
.../nat-default-linux.args | 21 ++++++++++
.../nat-ipv6-linux.args | 42 +++++++++++++++++++
.../nat-many-ips-linux.args | 21 ++++++++++
.../nat-no-dhcp-linux.args | 42 +++++++++++++++++++
.../nat-tftp-linux.args | 28 +++++++++++++
.../route-default-linux.args | 21 ++++++++++
10 files changed, 244 insertions(+), 6 deletions(-)
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 7b681fac64..83b97af364 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -2186,6 +2186,7 @@ iptablesAddForwardRejectIn;
iptablesAddForwardRejectOut;
iptablesAddOutputFixUdpChecksum;
iptablesAddTcpInput;
+iptablesAddTcpOutput;
iptablesAddUdpInput;
iptablesAddUdpOutput;
iptablesRemoveDontMasquerade;
@@ -2198,6 +2199,7 @@ iptablesRemoveForwardRejectIn;
iptablesRemoveForwardRejectOut;
iptablesRemoveOutputFixUdpChecksum;
iptablesRemoveTcpInput;
+iptablesRemoveTcpOutput;
iptablesRemoveUdpInput;
iptablesRemoveUdpOutput;
iptablesSetDeletePrivate;
diff --git a/src/network/bridge_driver_linux.c b/src/network/bridge_driver_linux.c
index 35459c10d1..0b6ff45b17 100644
--- a/src/network/bridge_driver_linux.c
+++ b/src/network/bridge_driver_linux.c
@@ -553,18 +553,23 @@ networkAddGeneralIPv4FirewallRules(virFirewallPtr fw,
break;
}
- /* allow DHCP requests through to dnsmasq */
+ /* allow DHCP requests through to dnsmasq & back out */
iptablesAddTcpInput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 67);
iptablesAddUdpInput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 67);
+ iptablesAddTcpOutput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 68);
iptablesAddUdpOutput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 68);
- /* allow DNS requests through to dnsmasq */
+ /* allow DNS requests through to dnsmasq & back out */
iptablesAddTcpInput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 53);
iptablesAddUdpInput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 53);
+ iptablesAddTcpOutput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 53);
+ iptablesAddUdpOutput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 53);
- /* allow TFTP requests through to dnsmasq if necessary */
- if (ipv4def && ipv4def->tftproot)
+ /* allow TFTP requests through to dnsmasq if necessary & back out*/
+ if (ipv4def && ipv4def->tftproot) {
iptablesAddUdpInput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 69);
+ iptablesAddUdpOutput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 69);
+ }
/* Catch all rules to block forwarding to/from bridges */
iptablesAddForwardRejectOut(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge);
@@ -592,13 +597,18 @@ networkRemoveGeneralIPv4FirewallRules(virFirewallPtr fw,
iptablesRemoveForwardRejectIn(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge);
iptablesRemoveForwardRejectOut(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge);
- if (ipv4def && ipv4def->tftproot)
+ if (ipv4def && ipv4def->tftproot) {
iptablesRemoveUdpInput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 69);
+ iptablesRemoveUdpOutput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 69);
+ }
iptablesRemoveUdpInput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 53);
iptablesRemoveTcpInput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 53);
+ iptablesRemoveUdpOutput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 53);
+ iptablesRemoveTcpOutput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 53);
iptablesRemoveUdpOutput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 68);
+ iptablesRemoveTcpOutput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 68);
iptablesRemoveUdpInput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 67);
iptablesRemoveTcpInput(fw, VIR_FIREWALL_LAYER_IPV4, def->bridge, 67);
}
@@ -626,10 +636,14 @@ networkAddGeneralIPv6FirewallRules(virFirewallPtr fw,
iptablesAddForwardAllowCross(fw, VIR_FIREWALL_LAYER_IPV6, def->bridge);
if (virNetworkDefGetIPByIndex(def, AF_INET6, 0)) {
- /* allow DNS over IPv6 */
+ /* allow DNS over IPv6 & back out */
iptablesAddTcpInput(fw, VIR_FIREWALL_LAYER_IPV6, def->bridge, 53);
iptablesAddUdpInput(fw, VIR_FIREWALL_LAYER_IPV6, def->bridge, 53);
+ iptablesAddTcpOutput(fw, VIR_FIREWALL_LAYER_IPV6, def->bridge, 53);
+ iptablesAddUdpOutput(fw, VIR_FIREWALL_LAYER_IPV6, def->bridge, 53);
+ /* allow DHCPv6 & back out */
iptablesAddUdpInput(fw, VIR_FIREWALL_LAYER_IPV6, def->bridge, 547);
+ iptablesAddUdpOutput(fw, VIR_FIREWALL_LAYER_IPV6, def->bridge, 546);
}
}
@@ -643,7 +657,10 @@ networkRemoveGeneralIPv6FirewallRules(virFirewallPtr fw,
}
if (virNetworkDefGetIPByIndex(def, AF_INET6, 0)) {
+ iptablesRemoveUdpOutput(fw, VIR_FIREWALL_LAYER_IPV6, def->bridge, 546);
iptablesRemoveUdpInput(fw, VIR_FIREWALL_LAYER_IPV6, def->bridge, 547);
+ iptablesRemoveUdpOutput(fw, VIR_FIREWALL_LAYER_IPV6, def->bridge, 53);
+ iptablesRemoveTcpOutput(fw, VIR_FIREWALL_LAYER_IPV6, def->bridge, 53);
iptablesRemoveUdpInput(fw, VIR_FIREWALL_LAYER_IPV6, def->bridge, 53);
iptablesRemoveTcpInput(fw, VIR_FIREWALL_LAYER_IPV6, def->bridge, 53);
}
diff --git a/src/util/viriptables.c b/src/util/viriptables.c
index 0e3c0ad73a..46d0c3df7a 100644
--- a/src/util/viriptables.c
+++ b/src/util/viriptables.c
@@ -303,6 +303,42 @@ iptablesRemoveUdpInput(virFirewallPtr fw,
iptablesInput(fw, layer, deletePrivate, iface, port, REMOVE, 0);
}
+/**
+ * iptablesAddTcpOutput:
+ * @ctx: pointer to the IP table context
+ * @iface: the interface name
+ * @port: the TCP port to add
+ *
+ * Add an output to the IP table allowing access to the given @port from
+ * the given @iface interface for TCP packets
+ */
+void
+iptablesAddTcpOutput(virFirewallPtr fw,
+ virFirewallLayer layer,
+ const char *iface,
+ int port)
+{
+ iptablesOutput(fw, layer, true, iface, port, ADD, 1);
+}
+
+/**
+ * iptablesRemoveTcpOutput:
+ * @ctx: pointer to the IP table context
+ * @iface: the interface name
+ * @port: the UDP port to remove
+ *
+ * Removes an output from the IP table, hence forbidding access to the given
+ * @port from the given @iface interface for TCP packets
+ */
+void
+iptablesRemoveTcpOutput(virFirewallPtr fw,
+ virFirewallLayer layer,
+ const char *iface,
+ int port)
+{
+ iptablesOutput(fw, layer, deletePrivate, iface, port, REMOVE, 1);
+}
+
/**
* iptablesAddUdpOutput:
* @ctx: pointer to the IP table context
diff --git a/src/util/viriptables.h b/src/util/viriptables.h
index feea988acd..07b4851013 100644
--- a/src/util/viriptables.h
+++ b/src/util/viriptables.h
@@ -45,6 +45,14 @@ void iptablesRemoveUdpInput (virFirewallPtr fw,
const char *iface,
int port);
+void iptablesAddTcpOutput (virFirewallPtr fw,
+ virFirewallLayer layer,
+ const char *iface,
+ int port);
+void iptablesRemoveTcpOutput (virFirewallPtr fw,
+ virFirewallLayer layer,
+ const char *iface,
+ int port);
void iptablesAddUdpOutput (virFirewallPtr fw,
virFirewallLayer layer,
const char *iface,
diff --git a/tests/networkxml2firewalldata/nat-default-linux.args b/tests/networkxml2firewalldata/nat-default-linux.args
index c9d523d043..ab18f30bd0 100644
--- a/tests/networkxml2firewalldata/nat-default-linux.args
+++ b/tests/networkxml2firewalldata/nat-default-linux.args
@@ -16,6 +16,13 @@ iptables \
--table filter \
--insert LIBVIRT_OUT \
--out-interface virbr0 \
+--protocol tcp \
+--destination-port 68 \
+--jump ACCEPT
+iptables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
--protocol udp \
--destination-port 68 \
--jump ACCEPT
@@ -35,6 +42,20 @@ iptables \
--jump ACCEPT
iptables \
--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol tcp \
+--destination-port 53 \
+--jump ACCEPT
+iptables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol udp \
+--destination-port 53 \
+--jump ACCEPT
+iptables \
+--table filter \
--insert LIBVIRT_FWO \
--in-interface virbr0 \
--jump REJECT
diff --git a/tests/networkxml2firewalldata/nat-ipv6-linux.args b/tests/networkxml2firewalldata/nat-ipv6-linux.args
index a57b9266af..05d9ee33ca 100644
--- a/tests/networkxml2firewalldata/nat-ipv6-linux.args
+++ b/tests/networkxml2firewalldata/nat-ipv6-linux.args
@@ -16,6 +16,13 @@ iptables \
--table filter \
--insert LIBVIRT_OUT \
--out-interface virbr0 \
+--protocol tcp \
+--destination-port 68 \
+--jump ACCEPT
+iptables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
--protocol udp \
--destination-port 68 \
--jump ACCEPT
@@ -35,6 +42,20 @@ iptables \
--jump ACCEPT
iptables \
--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol tcp \
+--destination-port 53 \
+--jump ACCEPT
+iptables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol udp \
+--destination-port 53 \
+--jump ACCEPT
+iptables \
+--table filter \
--insert LIBVIRT_FWO \
--in-interface virbr0 \
--jump REJECT
@@ -81,11 +102,32 @@ ip6tables \
--jump ACCEPT
ip6tables \
--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol tcp \
+--destination-port 53 \
+--jump ACCEPT
+ip6tables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol udp \
+--destination-port 53 \
+--jump ACCEPT
+ip6tables \
+--table filter \
--insert LIBVIRT_INP \
--in-interface virbr0 \
--protocol udp \
--destination-port 547 \
--jump ACCEPT
+ip6tables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol udp \
+--destination-port 546 \
+--jump ACCEPT
iptables \
--table filter \
--insert LIBVIRT_FWO \
diff --git a/tests/networkxml2firewalldata/nat-many-ips-linux.args b/tests/networkxml2firewalldata/nat-many-ips-linux.args
index 1bdc43fd6a..82e1380f51 100644
--- a/tests/networkxml2firewalldata/nat-many-ips-linux.args
+++ b/tests/networkxml2firewalldata/nat-many-ips-linux.args
@@ -16,6 +16,13 @@ iptables \
--table filter \
--insert LIBVIRT_OUT \
--out-interface virbr0 \
+--protocol tcp \
+--destination-port 68 \
+--jump ACCEPT
+iptables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
--protocol udp \
--destination-port 68 \
--jump ACCEPT
@@ -35,6 +42,20 @@ iptables \
--jump ACCEPT
iptables \
--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol tcp \
+--destination-port 53 \
+--jump ACCEPT
+iptables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol udp \
+--destination-port 53 \
+--jump ACCEPT
+iptables \
+--table filter \
--insert LIBVIRT_FWO \
--in-interface virbr0 \
--jump REJECT
diff --git a/tests/networkxml2firewalldata/nat-no-dhcp-linux.args b/tests/networkxml2firewalldata/nat-no-dhcp-linux.args
index 7d359f3824..8954cc5473 100644
--- a/tests/networkxml2firewalldata/nat-no-dhcp-linux.args
+++ b/tests/networkxml2firewalldata/nat-no-dhcp-linux.args
@@ -16,6 +16,13 @@ iptables \
--table filter \
--insert LIBVIRT_OUT \
--out-interface virbr0 \
+--protocol tcp \
+--destination-port 68 \
+--jump ACCEPT
+iptables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
--protocol udp \
--destination-port 68 \
--jump ACCEPT
@@ -35,6 +42,20 @@ iptables \
--jump ACCEPT
iptables \
--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol tcp \
+--destination-port 53 \
+--jump ACCEPT
+iptables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol udp \
+--destination-port 53 \
+--jump ACCEPT
+iptables \
+--table filter \
--insert LIBVIRT_FWO \
--in-interface virbr0 \
--jump REJECT
@@ -81,11 +102,32 @@ ip6tables \
--jump ACCEPT
ip6tables \
--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol tcp \
+--destination-port 53 \
+--jump ACCEPT
+ip6tables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol udp \
+--destination-port 53 \
+--jump ACCEPT
+ip6tables \
+--table filter \
--insert LIBVIRT_INP \
--in-interface virbr0 \
--protocol udp \
--destination-port 547 \
--jump ACCEPT
+ip6tables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol udp \
+--destination-port 546 \
+--jump ACCEPT
iptables \
--table filter \
--insert LIBVIRT_FWO \
diff --git a/tests/networkxml2firewalldata/nat-tftp-linux.args b/tests/networkxml2firewalldata/nat-tftp-linux.args
index b721801b70..88e9929b62 100644
--- a/tests/networkxml2firewalldata/nat-tftp-linux.args
+++ b/tests/networkxml2firewalldata/nat-tftp-linux.args
@@ -16,6 +16,13 @@ iptables \
--table filter \
--insert LIBVIRT_OUT \
--out-interface virbr0 \
+--protocol tcp \
+--destination-port 68 \
+--jump ACCEPT
+iptables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
--protocol udp \
--destination-port 68 \
--jump ACCEPT
@@ -35,6 +42,20 @@ iptables \
--jump ACCEPT
iptables \
--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol tcp \
+--destination-port 53 \
+--jump ACCEPT
+iptables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol udp \
+--destination-port 53 \
+--jump ACCEPT
+iptables \
+--table filter \
--insert LIBVIRT_INP \
--in-interface virbr0 \
--protocol udp \
@@ -42,6 +63,13 @@ iptables \
--jump ACCEPT
iptables \
--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol udp \
+--destination-port 69 \
+--jump ACCEPT
+iptables \
+--table filter \
--insert LIBVIRT_FWO \
--in-interface virbr0 \
--jump REJECT
diff --git a/tests/networkxml2firewalldata/route-default-linux.args b/tests/networkxml2firewalldata/route-default-linux.args
index ed3c560f74..c427d9602d 100644
--- a/tests/networkxml2firewalldata/route-default-linux.args
+++ b/tests/networkxml2firewalldata/route-default-linux.args
@@ -16,6 +16,13 @@ iptables \
--table filter \
--insert LIBVIRT_OUT \
--out-interface virbr0 \
+--protocol tcp \
+--destination-port 68 \
+--jump ACCEPT
+iptables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
--protocol udp \
--destination-port 68 \
--jump ACCEPT
@@ -35,6 +42,20 @@ iptables \
--jump ACCEPT
iptables \
--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol tcp \
+--destination-port 53 \
+--jump ACCEPT
+iptables \
+--table filter \
+--insert LIBVIRT_OUT \
+--out-interface virbr0 \
+--protocol udp \
+--destination-port 53 \
+--jump ACCEPT
+iptables \
+--table filter \
--insert LIBVIRT_FWO \
--in-interface virbr0 \
--jump REJECT
--
2.21.0
5 years, 3 months
[libvirt] [PATCH v2] tools: fix regression passing command with virt-login-shell
by Daniel P. Berrangé
It is documented that a command to run inside the container can be
passed with the -c arg.
virt-login-shell -c "ls -l /"
This fixes
commit 4feeb2d986b98013ebfb1d41ab6b9007b6cce6e2
Author: Daniel P. Berrangé <berrange(a)redhat.com>
Date: Thu Aug 1 10:58:31 2019 +0100
tools: split virt-login-shell into two binaries
Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com>
---
tools/virt-login-shell.c | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 deletions(-)
diff --git a/tools/virt-login-shell.c b/tools/virt-login-shell.c
index f92cc0a749..7d1e0ccc8a 100644
--- a/tools/virt-login-shell.c
+++ b/tools/virt-login-shell.c
@@ -38,12 +38,8 @@
int main(int argc, char **argv) {
char uidstr[INT_BUFSIZE_BOUND(uid_t)];
char gidstr[INT_BUFSIZE_BOUND(gid_t)];
- const char *const newargv[] = {
- LIBEXECDIR "/virt-login-shell-helper",
- uidstr,
- gidstr,
- NULL,
- };
+ const char * newargv[6];
+ size_t nargs = 0;
char *newenv[] = {
NULL,
NULL,
@@ -60,10 +56,23 @@ int main(int argc, char **argv) {
exit(EXIT_FAILURE);
}
- if (argc != 1) {
- fprintf(stderr, "%s: no arguments expected\n", argv[0]);
+ newargv[nargs++] = LIBEXECDIR "/virt-login-shell-helper";
+ if (argc == 3) {
+ if (strcmp(argv[1], "-c") != 0) {
+ fprintf(stderr, "%s: syntax: %s [-c CMDSTR]\n", argv[0], argv[0]);
+ exit(EXIT_FAILURE);
+ }
+ newargv[nargs++] = argv[1];
+ newargv[nargs++] = argv[2];
+ } else if (argc != 1) {
+ fprintf(stderr, "%s: syntax: %s [-c CMDSTR]\n", argv[0], argv[0]);
exit(EXIT_FAILURE);
}
+ newargv[nargs++] = uidstr;
+ newargv[nargs++] = gidstr;
+ newargv[nargs++] = NULL;
+
+ assert(nargs <= (sizeof(newargv)/sizeof(newargv[0])));
if (term &&
asprintf(&(newenv[0]), "TERM=%s", term) < 0) {
--
2.21.0
5 years, 3 months
[libvirt] [PATCH 0/2] Fix cgroupv2 issue on Fedora 31
by Cole Robinson
There's been a bunch of reports of VM startup failures on Fedora 31
and elsewhere:
https://bugzilla.redhat.com/show_bug.cgi?id=1751120
The reproducer I found is running a mock build, which adds a
name=systemd cgroup to /proc/self/cgroup, which messes up libvirt's
logic. The first patch has a bit more detail.
I'm not positive this is entirely correct... maybe we should be doing
something with that cgroup in some way? I'm kinda ignorant here.
I also filed a systemd bug incase that behavior is unintentional. We
probably want to change libvirt regardless though
https://bugzilla.redhat.com/show_bug.cgi?id=1756143
Cole Robinson (2):
vircgroupv2: Fix VM startup when legacy cgroups are defined
vircgroup: Add some VIR_DEBUG statements
src/util/vircgroup.c | 3 ++-
src/util/vircgroupv2.c | 15 ++++++++++++++-
2 files changed, 16 insertions(+), 2 deletions(-)
--
2.23.0
5 years, 3 months
[libvirt] [PATCH v2 0/7] qemu: checkpoints: Collect most code in a single place
by Peter Krempa
The checkpoint code is quite complex and was dispersed in many places.
Refactor it to be in one new separate file.
I also plan to do the same to the snapshot code once this is dealt with.
Additionally aggregating all the code in one place will allow
refactoring and reuse in the incremental backup implementation.
diff to v1:
- rebased on top of the patches to remove checking of AUTODESTROY
- kept only one instance of virCheckFlags per API (inside qemu_checkpoint.c)
Peter Krempa (7):
qemu: Move, rename and export qemuDomObjFromDomain
conf: Drop pointless 'domain' argument from
virDomainCheckpointRedefinePrep
conf: Drop pointless 'domain' argument from
virDomainSnapshotRedefinePrep
qemu: driver: Remove misplaced qemuDomainObjEndJob in
qemuDomainCheckpointGetXMLDesc
qemu: driver: Move checkpoint-related code to qemu_checkpoint.c
qemu: domain: Move checkpoint related code to qemu_checkpoint.c
qemu: driver: Don't pull in qemu_monitor_json.h directly
src/conf/checkpoint_conf.c | 7 +-
src/conf/checkpoint_conf.h | 3 +-
src/conf/snapshot_conf.c | 5 +-
src/conf/snapshot_conf.h | 3 +-
src/qemu/Makefile.inc.am | 2 +
src/qemu/qemu_checkpoint.c | 646 ++++++++++++++++++++++++++++++++++
src/qemu/qemu_checkpoint.h | 55 +++
src/qemu/qemu_domain.c | 193 ++---------
src/qemu/qemu_domain.h | 16 +-
src/qemu/qemu_driver.c | 689 ++++++++-----------------------------
src/test/test_driver.c | 4 +-
11 files changed, 887 insertions(+), 736 deletions(-)
create mode 100644 src/qemu/qemu_checkpoint.c
create mode 100644 src/qemu/qemu_checkpoint.h
--
2.21.0
5 years, 3 months
