We allow users to use SLIRP stack. However, there are some knobs which are not exposed to users, such as host network address, DNS server, smb, and others. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; --- docs/formatdomain.html.in | 7 +- docs/schemas/domaincommon.rng | 23 +++++- src/conf/domain_conf.c | 88 ++++++++++++++++++++++ src/conf/domain_conf.h | 6 ++ src/qemu/qemu_command.c | 19 +++++ .../qemuxml2argvdata/qemuxml2argv-net-user-ip.args | 7 ++ .../qemuxml2argvdata/qemuxml2argv-net-user-ip.xml | 33 ++++++++ tests/qemuxml2argvtest.c | 1 + 8 files changed, 180 insertions(+), 4 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-net-user-ip.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-net-user-ip.xml diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 7f90455..0a353ca 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -3225,7 +3225,11 @@ starting from <code>10.0.2.15</code>. The default router will be <code>10.0.2.2</code> and the DNS server will be <code>10.0.2.3</code>. This networking is the only option for unprivileged users who need their - VMs to have outgoing access. + VMs to have outgoing access. <span class="since">Since 1.2.3</span> the + user network can have the &lt;ip/&gt; element to override the default + network of <code>10.0.2.0/24</code>. For example it can be set to + <code>192.168.2.0/24</code>. The whole element and its attributes are + optional. </p> <pre> @@ -3235,6 +3239,7 @@ ... &lt;interface type='user'&gt; &lt;mac address="00:11:22:33:44:55"/&gt; + &lt;ip address="192.168.2.0" prefix="24" dns="192.168.2.3" dhcpstart="192.168.2.9"/&gt; &lt;/interface&gt; &lt;/devices&gt; ...</pre> diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index bcd8142..5745ce7 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -2152,9 +2152,26 @@ </optional> <optional> <element name="ip"> - <attribute name="address"> - <ref name="ipv4Addr"/> - </attribute> + <optional> + <attribute name="address"> + <ref name="ipv4Addr"/> + </attribute> + </optional> + <optional> + <attribute name="prefix"> + <data type="integer"/> + </attribute> + </optional> + <optional> + <attribute name="dns"> + <ref name="ipv4Addr"/> + </attribute> + </optional> + <optional> + <attribute name="dhcpstart"> + <ref name="ipv4Addr"/> + </attribute> + </optional> <empty/> </element> </optional> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 6fb216e..aec14ed 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -1539,6 +1539,11 @@ void virDomainNetDefFree(virDomainNetDefPtr def) break; case VIR_DOMAIN_NET_TYPE_USER: + VIR_FREE(def->data.user.ipaddr); + VIR_FREE(def->data.user.dns); + VIR_FREE(def->data.user.dhcpstart); + break; + case VIR_DOMAIN_NET_TYPE_LAST: break; } @@ -6669,6 +6674,9 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt, char *mode = NULL; char *linkstate = NULL; char *addrtype = NULL; + char *prefix = NULL; + char *dns = NULL; + char *dhcpstart = NULL; virNWFilterHashTablePtr filterparams = NULL; virDomainActualNetDefPtr actual = NULL; xmlNodePtr oldnode = ctxt->node; @@ -6750,6 +6758,13 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt, def->type == VIR_DOMAIN_NET_TYPE_BRIDGE) && xmlStrEqual(cur->name, BAD_CAST "ip")) { address = virXMLPropString(cur, "address"); + } else if (!address && + def->type == VIR_DOMAIN_NET_TYPE_USER && + xmlStrEqual(cur->name, BAD_CAST "ip")) { + address = virXMLPropString(cur, "address"); + prefix = virXMLPropString(cur, "prefix"); + dns = virXMLPropString(cur, "dns"); + dhcpstart = virXMLPropString(cur, "dhcpstart"); } else if (!ifname && xmlStrEqual(cur->name, BAD_CAST "target")) { ifname = virXMLPropString(cur, "dev"); @@ -6988,6 +7003,59 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt, break; case VIR_DOMAIN_NET_TYPE_USER: + if (prefix) { + if (!address) { + virReportError(VIR_ERR_XML_ERROR, "%s", + _("can't use prefix without an address")); + goto error; + } + + if (virStrToLong_i(prefix, NULL, 10, &def->data.user.prefix) < 0 || + def->data.user.prefix < 0) { + virReportError(VIR_ERR_XML_ERROR, + _("Invalid prefix: '%s'"), prefix); + goto error; + } + } else { + def->data.user.prefix = -1; + } + + if (address) { + if (virSocketAddrParse(NULL, address, AF_UNSPEC) < 0) { + virReportError(VIR_ERR_XML_ERROR, + _("Invalid address: '%s'"), address); + goto error; + } + + def->data.user.ipaddr = address; + address = NULL; + } + + if (dns) { + if (virSocketAddrParse(NULL, dns, AF_UNSPEC) < 0) { + virReportError(VIR_ERR_XML_ERROR, + _("Invalid dns address: '%s'"), dns); + goto error; + } + + def->data.user.dns = dns; + dns = NULL; + } + + if (dhcpstart) { + if (virSocketAddrParse(NULL, dhcpstart, AF_UNSPEC) < 0) { + virReportError(VIR_ERR_XML_ERROR, + _("Invalid dhcpstart address: '%s'"), + dhcpstart); + goto error; + } + + def->data.user.dhcpstart = dhcpstart; + dhcpstart = NULL; + } + + break; + case VIR_DOMAIN_NET_TYPE_LAST: break; } @@ -7134,6 +7202,9 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt, VIR_FREE(mode); VIR_FREE(linkstate); VIR_FREE(addrtype); + VIR_FREE(prefix); + VIR_FREE(dns); + VIR_FREE(dhcpstart); virNWFilterHashTableFree(filterparams); return def; @@ -15766,6 +15837,23 @@ virDomainNetDefFormat(virBufferPtr buf, break; case VIR_DOMAIN_NET_TYPE_USER: + if (def->data.user.ipaddr || + def->data.user.dns || + def->data.user.dhcpstart) { + virBufferAddLit(buf, "<ip"); + + if (def->data.user.ipaddr) { + virBufferAsprintf(buf, " address='%s'", def->data.user.ipaddr); + if (def->data.user.prefix >= 0) + virBufferAsprintf(buf, " prefix='%d'", def->data.user.prefix); + } + + virBufferEscapeString(buf, " dns='%s'", def->data.user.dns); + virBufferEscapeString(buf, " dhcpstart='%s'", def->data.user.dhcpstart); + virBufferAddLit(buf, "/>\n"); + } + break; + case VIR_DOMAIN_NET_TYPE_LAST: break; } diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index f3f24c4..b5d52e9 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -1046,6 +1046,12 @@ struct _virDomainNetDef { struct { virDomainHostdevDef def; } hostdev; + struct { + char *ipaddr; + int prefix; + char *dns; + char *dhcpstart; + } user; } data; /* virtPortProfile is used by network/bridge/direct/hostdev */ virNetDevVPortProfilePtr virtPortProfile; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 9a314bf..f17061e 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -5156,6 +5156,25 @@ qemuBuildHostNetStr(virDomainNetDefPtr net, break; case VIR_DOMAIN_NET_TYPE_USER: + virBufferAddLit(&buf, "user"); + if (net->data.user.ipaddr) { + virBufferAsprintf(&buf, "%cnet=%s", type_sep, + net->data.user.ipaddr); + type_sep = ','; + if (net->data.user.prefix >= 0) + virBufferAsprintf(&buf, "/%d", net->data.user.prefix); + } + if (net->data.user.dns) { + virBufferAsprintf(&buf, "%cdns=%s", type_sep, net->data.user.dns); + type_sep = ','; + } + if (net->data.user.dhcpstart) { + virBufferAsprintf(&buf, "%cdhcpstart=%s", type_sep, + net->data.user.dhcpstart); + type_sep = ','; + } + break; + default: virBufferAddLit(&buf, "user"); break; diff --git a/tests/qemuxml2argvdata/qemuxml2argv-net-user-ip.args b/tests/qemuxml2argvdata/qemuxml2argv-net-user-ip.args new file mode 100644 index 0000000..3e355f3 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-net-user-ip.args @@ -0,0 +1,7 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \ +/usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic \ +-monitor unix:/tmp/test-monitor,server,nowait \ +-no-acpi -boot c -usb -hda /dev/HostVG/QEMUGuest1 \ +-net nic,macaddr=00:11:22:33:44:55,vlan=0,model=rtl8139 \ +-net user,net=192.168.2.0/24,dns=192.168.2.3,dhcpstart=192.168.2.9,vlan=0 \ +-serial none -parallel none diff --git a/tests/qemuxml2argvdata/qemuxml2argv-net-user-ip.xml b/tests/qemuxml2argvdata/qemuxml2argv-net-user-ip.xml new file mode 100644 index 0000000..5c36c77 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-net-user-ip.xml @@ -0,0 +1,33 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</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</emulator> + <disk type='block' device='disk'> + <driver name='qemu' type='raw'/> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + <address type='drive' controller='0' bus='0' target='0' unit='0'/> + </disk> + <controller type='usb' index='0'/> + <controller type='ide' index='0'/> + <controller type='pci' index='0' model='pci-root'/> + <interface type='user'> + <ip address='192.168.2.0' prefix='24' dns='192.168.2.3' dhcpstart='192.168.2.9'/> + <mac address='00:11:22:33:44:55'/> + <model type='rtl8139'/> + </interface> + <memballoon model='virtio'/> + </devices> +</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 56854dc..02ed4ba 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -923,6 +923,7 @@ mymain(void) DO_TEST("misc-no-reboot", NONE); DO_TEST("misc-uuid", QEMU_CAPS_NAME, QEMU_CAPS_UUID); DO_TEST("net-user", NONE); + DO_TEST("net-user-ip", NONE); DO_TEST("net-virtio", NONE); DO_TEST("net-virtio-device", QEMU_CAPS_DEVICE, QEMU_CAPS_NODEFCONFIG, QEMU_CAPS_VIRTIO_TX_ALG); -- 1.9.0