4:22 a.m.
Allow to use ip address and routes elements inside network ethernet.
Also allow to configure point-to-point address for host side device.
Signed-off-by: Vasiliy Tolstov <v.tolstov(a)selfip.ru>
---
docs/formatdomain.html.in | 12 ++++++++-
docs/schemas/network.rng | 3 +++
include/libvirt/libvirt-domain.h | 1 +
src/conf/domain_conf.c | 14 ++++++++++-
src/conf/domain_conf.h | 1 +
src/conf/network_conf.c | 26 ++++++++++++++++++-
src/conf/network_conf.h | 1 +
src/lxc/lxc_container.c | 2 +-
src/network/bridge_driver.c | 2 +-
src/qemu/qemu_interface.c | 39 +++++++++++++++++++++++++++++
src/util/virnetdev.c | 54 ++++++++++++++++++++++++++++------------
src/util/virnetdev.h | 1 +
12 files changed, 135 insertions(+), 21 deletions(-)
diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 71ffe750452e..1203e96a8286 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -4717,6 +4717,7 @@ qemu-kvm -net nic,model=? /dev/null
<source network='default'/>
<target dev='vnet0'/>
<b><ip address='192.168.122.5'
prefix='24'/></b>
+ <b><ip address='192.168.122.5' prefix='24'
peer='10.0.0.10'/></b>
<b><route family='ipv4' address='192.168.122.0'
prefix='24' gateway='192.168.122.1'/></b>
<b><route family='ipv4' address='192.168.122.8'
gateway='192.168.122.1'/></b>
</interface>
@@ -4749,7 +4750,16 @@ qemu-kvm -net nic,model=? /dev/null
to define the network routes to use for the network device. The attributes
of this element are described in the documentation for the
<code>route</code>
element in <a href="formatnetwork.html#elementsStaticroute">network
definitions</a>.
- This is only used by the LXC driver.
+ This is used by the LXC driver and <span class="since">Since
1.3.3</span> by the QEMU
+ driver.
+ </p>
+
+ <p>
+ <span class="since">Since 1.3.3</span> ip elements can hold
peer attribute to assign
+ point-to-point address for the network device. The attributes of this element
+ are described in the documentation for the <code>ip</code> element in
+ <a href="formatnetwork.html#elementsAddress">network
definitions</a>.
+ This is only used by the LXC and QEMU driver.
</p>
<h5><a name="elementVhostuser">vhost-user
interface</a></h5>
diff --git a/docs/schemas/network.rng b/docs/schemas/network.rng
index 4edb6eb31ad0..47b4b80fc0c3 100644
--- a/docs/schemas/network.rng
+++ b/docs/schemas/network.rng
@@ -315,6 +315,9 @@
</choice>
</optional>
<optional>
+ <attribute name="peer"><ref
name="ipAddr"/></attribute>
+ </optional>
+ <optional>
<attribute name="family"><ref
name="addr-family"/></attribute>
</optional>
<optional>
diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-domain.h
index 7e06796c3c73..437e87fac01c 100644
--- a/include/libvirt/libvirt-domain.h
+++ b/include/libvirt/libvirt-domain.h
@@ -3937,6 +3937,7 @@ typedef virDomainIPAddress *virDomainIPAddressPtr;
struct _virDomainInterfaceIPAddress {
int type; /* virIPAddrType */
char *addr; /* IP address */
+ char *peer; /* IP peer */
unsigned int prefix; /* IP address prefix */
};
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index d5d9ff702f42..34855233ad15 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -5725,7 +5725,7 @@ virDomainNetIpParseXML(xmlNodePtr node)
unsigned int prefixValue = 0;
char *familyStr = NULL;
int family = AF_UNSPEC;
- char *address = NULL;
+ char *address = NULL, *peer = NULL;
if (!(prefixStr = virXMLPropString(node, "prefix")) ||
(virStrToLong_ui(prefixStr, NULL, 10, &prefixValue) < 0)) {
@@ -5739,6 +5739,9 @@ virDomainNetIpParseXML(xmlNodePtr node)
goto cleanup;
}
+ if ((peer = virXMLPropString(node, "peer")) == NULL)
+ VIR_DEBUG("Peer is empty");
+
familyStr = virXMLPropString(node, "family");
if (familyStr && STREQ(familyStr, "ipv4"))
family = AF_INET;
@@ -5756,6 +5759,14 @@ virDomainNetIpParseXML(xmlNodePtr node)
address);
goto cleanup;
}
+
+ if ((peer != NULL) && (virSocketAddrParse(&ip->peer, peer, family)
< 0)) {
+ virReportError(VIR_ERR_INVALID_ARG,
+ _("Failed to parse IP address: '%s'"),
+ peer);
+ goto cleanup;
+ }
+
ip->prefix = prefixValue;
ret = ip;
@@ -5765,6 +5776,7 @@ virDomainNetIpParseXML(xmlNodePtr node)
VIR_FREE(prefixStr);
VIR_FREE(familyStr);
VIR_FREE(address);
+ VIR_FREE(peer);
VIR_FREE(ip);
return ret;
}
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 83bdd67dec45..040882ec8460 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -513,6 +513,7 @@ typedef struct _virDomainNetIpDef virDomainNetIpDef;
typedef virDomainNetIpDef *virDomainNetIpDefPtr;
struct _virDomainNetIpDef {
virSocketAddr address; /* ipv4 or ipv6 address */
+ virSocketAddr peer; /* ipv4 or ipv6 address of peer */
unsigned int prefix; /* number of 1 bits in the net mask */
};
diff --git a/src/conf/network_conf.c b/src/conf/network_conf.c
index 4fb2e2a75b9d..1a0cf7fdcdd2 100644
--- a/src/conf/network_conf.c
+++ b/src/conf/network_conf.c
@@ -1456,7 +1456,7 @@ virNetworkIPDefParseXML(const char *networkName,
*/
xmlNodePtr cur, save;
- char *address = NULL, *netmask = NULL;
+ char *address = NULL, *netmask = NULL, *peer = NULL;
unsigned long prefix = 0;
int prefixRc;
int result = -1;
@@ -1502,6 +1502,14 @@ virNetworkIPDefParseXML(const char *networkName,
else
def->prefix = prefix;
+ peer = virXPathString("string(./@peer)", ctxt);
+ if (peer && (virSocketAddrParse(&def->peer, peer, AF_UNSPEC) < 0))
{
+ virReportError(VIR_ERR_XML_ERROR,
+ _("Invalid peer '%s' in network '%s'"),
+ peer, networkName);
+ goto cleanup;
+ }
+
/* validate address, etc. for each family */
if ((def->family == NULL) || (STREQ(def->family, "ipv4"))) {
if (!(VIR_SOCKET_ADDR_IS_FAMILY(&def->address, AF_INET) ||
@@ -1531,6 +1539,14 @@ virNetworkIPDefParseXML(const char *networkName,
prefix, networkName);
goto cleanup;
}
+ if (peer) {
+ if (!VIR_SOCKET_ADDR_IS_FAMILY(&def->peer, AF_INET)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("Family 'ipv4' specified for non-IPv4
address '%s' in network '%s'"),
+ peer, networkName);
+ goto cleanup;
+ }
+ }
} else if (STREQ(def->family, "ipv6")) {
if (!VIR_SOCKET_ADDR_IS_FAMILY(&def->address, AF_INET6)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
@@ -1550,6 +1566,14 @@ virNetworkIPDefParseXML(const char *networkName,
prefix, networkName);
goto cleanup;
}
+ if (peer) {
+ if (!VIR_SOCKET_ADDR_IS_FAMILY(&def->peer, AF_INET6)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("Family 'ipv6' specified for non-IPv6
address '%s' in network '%s'"),
+ peer, networkName);
+ goto cleanup;
+ }
+ }
} else {
virReportError(VIR_ERR_XML_ERROR,
_("Unrecognized family '%s' in network
'%s'"),
diff --git a/src/conf/network_conf.h b/src/conf/network_conf.h
index b72257b970a8..9b8e807fda3c 100644
--- a/src/conf/network_conf.h
+++ b/src/conf/network_conf.h
@@ -152,6 +152,7 @@ struct _virNetworkIpDef {
*/
unsigned int prefix; /* ipv6 - only prefix allowed */
virSocketAddr netmask; /* ipv4 - either netmask or prefix specified */
+ virSocketAddr peer; /* ipv4 or ipv6 peer address */
size_t nranges; /* Zero or more dhcp ranges */
virSocketAddrRangePtr ranges;
diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c
index 348bbfbc01fc..a1deb0c00d4c 100644
--- a/src/lxc/lxc_container.c
+++ b/src/lxc/lxc_container.c
@@ -520,7 +520,7 @@ static int lxcContainerRenameAndEnableInterfaces(virDomainDefPtr
vmDef,
VIR_DEBUG("Adding IP address '%s/%u' to '%s'",
ipStr, ip->prefix, newname);
- if (virNetDevSetIPAddress(newname, &ip->address, prefix) < 0) {
+ if (virNetDevSetIPAddress(newname, &ip->address, &ip->peer,
prefix) < 0) {
virReportError(VIR_ERR_SYSTEM_ERROR,
_("Failed to set IP address '%s' on
%s"),
ipStr, newname);
diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c
index a09a7e474fc5..f3ff88ff55a6 100644
--- a/src/network/bridge_driver.c
+++ b/src/network/bridge_driver.c
@@ -1970,7 +1970,7 @@ networkAddAddrToBridge(virNetworkObjPtr network,
}
if (virNetDevSetIPAddress(network->def->bridge,
- &ipdef->address, prefix) < 0)
+ &ipdef->address, &ipdef->peer, prefix) <
0)
return -1;
return 0;
diff --git a/src/qemu/qemu_interface.c b/src/qemu/qemu_interface.c
index 13a513152876..5729325fadb9 100644
--- a/src/qemu/qemu_interface.c
+++ b/src/qemu/qemu_interface.c
@@ -474,6 +474,45 @@ qemuInterfaceEthernetConnect(virDomainDefPtr def,
if (virNetDevSetMAC(net->ifname, &tapmac) < 0)
goto cleanup;
+ for (j = 0; j < net->nips; j++) {
+ virDomainNetIpDefPtr ip = net->ips[j];
+ unsigned int prefix = (ip->prefix > 0) ? ip->prefix :
+ VIR_SOCKET_ADDR_DEFAULT_PREFIX;
+ char *ipStr = virSocketAddrFormat(&ip->address);
+
+ VIR_DEBUG("Adding IP address '%s/%u' to '%s'",
+ ipStr, ip->prefix, net->ifname);
+
+ if (virNetDevSetIPAddress(net->ifname, &ip->address, &ip->peer,
prefix) < 0) {
+ virReportError(VIR_ERR_SYSTEM_ERROR,
+ _("Failed to set IP address '%s' on %s"),
+ ipStr, net->ifname);
+ VIR_FREE(ipStr);
+ goto cleanup;
+ }
+ VIR_FREE(ipStr);
+ }
+
+ if (net->linkstate == VIR_DOMAIN_NET_INTERFACE_LINK_STATE_UP ||
+ net->linkstate == VIR_DOMAIN_NET_INTERFACE_LINK_STATE_DEFAULT) {
+ if (virNetDevSetOnline(net->ifname, true) < 0)
+ goto cleanup;
+
+ /* Set the routes */
+ for (j = 0; j < net->nroutes; j++) {
+ virNetworkRouteDefPtr route = net->routes[j];
+
+ if (virNetDevAddRoute(net->ifname,
+ virNetworkRouteDefGetAddress(route),
+ virNetworkRouteDefGetPrefix(route),
+ virNetworkRouteDefGetGateway(route),
+ virNetworkRouteDefGetMetric(route)) < 0) {
+ goto cleanup;
+ }
+ }
+ }
+
+
if (net->script &&
qemuExecuteEthernetScript(net->ifname, net->script) < 0)
goto cleanup;
diff --git a/src/util/virnetdev.c b/src/util/virnetdev.c
index aed50f546263..6e32ebbf6cee 100644
--- a/src/util/virnetdev.c
+++ b/src/util/virnetdev.c
@@ -1039,21 +1039,28 @@ virNetDevCreateNetlinkAddressMessage(int messageType,
const char *ifname,
virSocketAddr *addr,
unsigned int prefix,
- virSocketAddr *broadcast)
+ virSocketAddr *broadcast,
+ virSocketAddr *peer)
{
struct nl_msg *nlmsg = NULL;
struct ifaddrmsg ifa;
unsigned int ifindex;
void *addrData = NULL;
+ void *peerData = NULL;
void *broadcastData = NULL;
size_t addrDataLen;
if (virNetDevGetIPAddressBinary(addr, &addrData, &addrDataLen) < 0)
return NULL;
- if (broadcast && virNetDevGetIPAddressBinary(broadcast, &broadcastData,
- &addrDataLen) < 0)
- return NULL;
+ if (peer && VIR_SOCKET_ADDR_VALID(peer)) {
+ if (virNetDevGetIPAddressBinary(peer, &peerData, &addrDataLen) < 0)
+ return NULL;
+ } else if (broadcast) {
+ if (virNetDevGetIPAddressBinary(broadcast, &broadcastData,
+ &addrDataLen) < 0)
+ return NULL;
+ }
/* Get the interface index */
if ((ifindex = if_nametoindex(ifname)) == 0)
@@ -1078,12 +1085,15 @@ virNetDevCreateNetlinkAddressMessage(int messageType,
if (nla_put(nlmsg, IFA_LOCAL, addrDataLen, addrData) < 0)
goto buffer_too_small;
- if (nla_put(nlmsg, IFA_ADDRESS, addrDataLen, addrData) < 0)
- goto buffer_too_small;
+ if (peerData) {
+ if (nla_put(nlmsg, IFA_ADDRESS, addrDataLen, peerData) < 0)
+ goto buffer_too_small;
+ }
- if (broadcastData &&
- nla_put(nlmsg, IFA_BROADCAST, addrDataLen, broadcastData) < 0)
- goto buffer_too_small;
+ if (broadcastData) {
+ if (nla_put(nlmsg, IFA_BROADCAST, addrDataLen, broadcastData) < 0)
+ goto buffer_too_small;
+ }
return nlmsg;
@@ -1098,6 +1108,7 @@ virNetDevCreateNetlinkAddressMessage(int messageType,
* virNetDevSetIPAddress:
* @ifname: the interface name
* @addr: the IP address (IPv4 or IPv6)
+ * @peer: The IP address of peer (IPv4 or IPv6)
* @prefix: number of 1 bits in the netmask
*
* Add an IP address to an interface. This function *does not* remove
@@ -1108,6 +1119,7 @@ virNetDevCreateNetlinkAddressMessage(int messageType,
*/
int virNetDevSetIPAddress(const char *ifname,
virSocketAddr *addr,
+ virSocketAddr *peer,
unsigned int prefix)
{
virSocketAddr *broadcast = NULL;
@@ -1116,9 +1128,8 @@ int virNetDevSetIPAddress(const char *ifname,
struct nlmsghdr *resp = NULL;
unsigned int recvbuflen;
-
/* The caller needs to provide a correct address */
- if (VIR_SOCKET_ADDR_FAMILY(addr) == AF_INET) {
+ if (VIR_SOCKET_ADDR_FAMILY(addr) == AF_INET && !VIR_SOCKET_ADDR_VALID(peer))
{
/* compute a broadcast address if this is IPv4 */
if (VIR_ALLOC(broadcast) < 0)
return -1;
@@ -1129,7 +1140,7 @@ int virNetDevSetIPAddress(const char *ifname,
if (!(nlmsg = virNetDevCreateNetlinkAddressMessage(RTM_NEWADDR, ifname,
addr, prefix,
- broadcast)))
+ broadcast, peer)))
goto cleanup;
if (virNetlinkCommand(nlmsg, &resp, &recvbuflen, 0, 0,
@@ -1288,7 +1299,7 @@ int virNetDevClearIPAddress(const char *ifname,
if (!(nlmsg = virNetDevCreateNetlinkAddressMessage(RTM_DELADDR, ifname,
addr, prefix,
- NULL)))
+ NULL, NULL)))
goto cleanup;
if (virNetlinkCommand(nlmsg, &resp, &recvbuflen, 0, 0,
@@ -1423,21 +1434,27 @@ virNetDevWaitDadFinish(virSocketAddrPtr *addrs, size_t count)
int virNetDevSetIPAddress(const char *ifname,
virSocketAddr *addr,
+ virSocketAddr *peer,
unsigned int prefix)
{
virCommandPtr cmd = NULL;
- char *addrstr = NULL, *bcaststr = NULL;
+ char *addrstr = NULL, *bcaststr = NULL, *peerstr = NULL;
virSocketAddr broadcast;
int ret = -1;
if (!(addrstr = virSocketAddrFormat(addr)))
goto cleanup;
+
+ if (VIR_SOCKET_ADDR_VALID(peer) && !(peerstr =
virSocketAddrFormat(&peer)))
+ goto cleanup;
+
/* format up a broadcast address if this is IPv4 */
- if ((VIR_SOCKET_ADDR_IS_FAMILY(addr, AF_INET)) &&
+ if (!peerstr && ((VIR_SOCKET_ADDR_IS_FAMILY(addr, AF_INET)) &&
((virSocketAddrBroadcastByPrefix(addr, prefix, &broadcast) < 0) ||
- !(bcaststr = virSocketAddrFormat(&broadcast)))) {
+ !(bcaststr = virSocketAddrFormat(&broadcast))))) {
goto cleanup;
}
+
# ifdef IFCONFIG_PATH
cmd = virCommandNew(IFCONFIG_PATH);
virCommandAddArg(cmd, ifname);
@@ -1446,6 +1463,8 @@ int virNetDevSetIPAddress(const char *ifname,
else
virCommandAddArg(cmd, "inet");
virCommandAddArgFormat(cmd, "%s/%u", addrstr, prefix);
+ if (peerstr)
+ virCommandAddArgList(cmd, "pointopoint", peerstr, NULL);
if (bcaststr)
virCommandAddArgList(cmd, "broadcast", bcaststr, NULL);
virCommandAddArg(cmd, "alias");
@@ -1453,6 +1472,8 @@ int virNetDevSetIPAddress(const char *ifname,
cmd = virCommandNew(IP_PATH);
virCommandAddArgList(cmd, "addr", "add", NULL);
virCommandAddArgFormat(cmd, "%s/%u", addrstr, prefix);
+ if (peerstr)
+ virCommandAddArgList(cmd, "peer", peerstr, NULL);
if (bcaststr)
virCommandAddArgList(cmd, "broadcast", bcaststr, NULL);
virCommandAddArgList(cmd, "dev", ifname, NULL);
@@ -1465,6 +1486,7 @@ int virNetDevSetIPAddress(const char *ifname,
cleanup:
VIR_FREE(addrstr);
VIR_FREE(bcaststr);
+ VIR_FREE(peerstr);
virCommandFree(cmd);
return ret;
}
diff --git a/src/util/virnetdev.h b/src/util/virnetdev.h
index e7719d58a410..240fff774d30 100644
--- a/src/util/virnetdev.h
+++ b/src/util/virnetdev.h
@@ -90,6 +90,7 @@ int virNetDevGetOnline(const char *ifname,
int virNetDevSetIPAddress(const char *ifname,
virSocketAddr *addr,
+ virSocketAddr *peer,
unsigned int prefix)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
int virNetDevAddRoute(const char *ifname,
--
2.7.3