[PATCH 1/2] qemu: Converting DHCP and ARP functions to domain conf
Julio Faracco
jcfaracco at gmail.com
Tue Jan 21 03:37:10 UTC 2020
QEMU driver has two functions: qemuGetDHCPInterfaces() and
qemuARPGetInterfaces() that are being used inside only one single
function. They can be turned into generic functions that other drivers
can use. This commit move both from QEMU driver tree to domain conf
tree.
Signed-off-by: Julio Faracco <jcfaracco at gmail.com>
---
src/conf/domain_conf.c | 134 ++++++++++++++++++++++++++++++++++++++
src/conf/domain_conf.h | 2 +
src/libvirt_private.syms | 2 +
src/qemu/qemu_driver.c | 137 +--------------------------------------
4 files changed, 140 insertions(+), 135 deletions(-)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index f920d1dc39..707d58e1a4 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -57,6 +57,7 @@
#include "virnetdev.h"
#include "virnetdevtap.h"
#include "virnetdevmacvlan.h"
+#include "virarptable.h"
#include "virhostdev.h"
#include "virmdev.h"
#include "virdomainsnapshotobjlist.h"
@@ -17267,6 +17268,139 @@ virDomainNetUpdate(virDomainDefPtr def,
}
+int
+virDomainNetDHCPInterfaces(virDomainDefPtr def,
+ virDomainInterfacePtr **ifaces)
+{
+ g_autoptr(virConnect) conn = NULL;
+ virDomainInterfacePtr *ifaces_ret = NULL;
+ size_t ifaces_count = 0;
+ size_t i;
+
+ if (!(conn = virGetConnectNetwork()))
+ return -1;
+
+ for (i = 0; i < def->nnets; i++) {
+ g_autoptr(virNetwork) network = NULL;
+ char macaddr[VIR_MAC_STRING_BUFLEN];
+ virNetworkDHCPLeasePtr *leases = NULL;
+ int n_leases = 0;
+ virDomainInterfacePtr iface = NULL;
+ size_t j;
+
+ if (def->nets[i]->type != VIR_DOMAIN_NET_TYPE_NETWORK)
+ continue;
+
+ virMacAddrFormat(&(def->nets[i]->mac), macaddr);
+
+ network = virNetworkLookupByName(conn,
+ def->nets[i]->data.network.name);
+ if (!network)
+ goto error;
+
+ if ((n_leases = virNetworkGetDHCPLeases(network, macaddr,
+ &leases, 0)) < 0)
+ goto error;
+
+ if (n_leases) {
+ ifaces_ret = g_renew(typeof(*ifaces_ret), ifaces_ret, ifaces_count + 1);
+ ifaces_ret[ifaces_count] = g_new0(typeof(**ifaces_ret), 1);
+ iface = ifaces_ret[ifaces_count];
+ ifaces_count++;
+
+ /* Assuming each lease corresponds to a separate IP */
+ iface->naddrs = n_leases;
+ iface->addrs = g_new0(typeof(*iface->addrs), iface->naddrs);
+ iface->name = g_strdup(def->nets[i]->ifname);
+ iface->hwaddr = g_strdup(macaddr);
+ }
+
+ for (j = 0; j < n_leases; j++) {
+ virNetworkDHCPLeasePtr lease = leases[j];
+ virDomainIPAddressPtr ip_addr = &iface->addrs[j];
+
+ ip_addr->addr = g_strdup(lease->ipaddr);
+ ip_addr->type = lease->type;
+ ip_addr->prefix = lease->prefix;
+
+ virNetworkDHCPLeaseFree(lease);
+ }
+
+ VIR_FREE(leases);
+ }
+
+ *ifaces = g_steal_pointer(&ifaces_ret);
+ return ifaces_count;
+
+ error:
+ if (ifaces_ret) {
+ for (i = 0; i < ifaces_count; i++)
+ virDomainInterfaceFree(ifaces_ret[i]);
+ }
+ VIR_FREE(ifaces_ret);
+
+ return -1;
+}
+
+
+int
+virDomainNetARPInterfaces(virDomainDefPtr def,
+ virDomainInterfacePtr **ifaces)
+{
+ size_t i, j;
+ size_t ifaces_count = 0;
+ int ret = -1;
+ char macaddr[VIR_MAC_STRING_BUFLEN];
+ virDomainInterfacePtr *ifaces_ret = NULL;
+ virDomainInterfacePtr iface = NULL;
+ virArpTablePtr table;
+
+ table = virArpTableGet();
+ if (!table)
+ goto cleanup;
+
+ for (i = 0; i < def->nnets; i++) {
+ virMacAddrFormat(&(def->nets[i]->mac), macaddr);
+ for (j = 0; j < table->n; j++) {
+ virArpTableEntry entry = table->t[j];
+
+ if (STREQ(entry.mac, macaddr)) {
+ if (VIR_ALLOC(iface) < 0)
+ goto cleanup;
+
+ iface->name = g_strdup(def->nets[i]->ifname);
+
+ iface->hwaddr = g_strdup(macaddr);
+
+ if (VIR_ALLOC(iface->addrs) < 0)
+ goto cleanup;
+ iface->naddrs = 1;
+
+ iface->addrs->addr = g_strdup(entry.ipaddr);
+
+ if (VIR_APPEND_ELEMENT(ifaces_ret, ifaces_count, iface) < 0)
+ goto cleanup;
+ }
+ }
+ }
+
+ *ifaces = g_steal_pointer(&ifaces_ret);
+ ret = ifaces_count;
+
+ cleanup:
+ virArpTableFree(table);
+ virDomainInterfaceFree(iface);
+
+ if (ifaces_ret) {
+ for (i = 0; i < ifaces_count; i++)
+ virDomainInterfaceFree(ifaces_ret[i]);
+ }
+ VIR_FREE(ifaces_ret);
+
+ return ret;
+}
+
+
int virDomainControllerInsert(virDomainDefPtr def,
virDomainControllerDefPtr controller)
{
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 6ae89fa498..9ae8411f6c 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -3186,6 +3186,8 @@ virDomainNetDefPtr virDomainNetFindByName(virDomainDefPtr def, const char *ifnam
bool virDomainHasNet(virDomainDefPtr def, virDomainNetDefPtr net);
int virDomainNetInsert(virDomainDefPtr def, virDomainNetDefPtr net);
int virDomainNetUpdate(virDomainDefPtr def, size_t netidx, virDomainNetDefPtr newnet);
+int virDomainNetDHCPInterfaces(virDomainDefPtr def, virDomainInterfacePtr **ifaces);
+int virDomainNetARPInterfaces(virDomainDefPtr def, virDomainInterfacePtr **ifaces);
virDomainNetDefPtr virDomainNetRemove(virDomainDefPtr def, size_t i);
void virDomainNetRemoveHostdev(virDomainDefPtr def, virDomainNetDefPtr net);
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index b63feb4054..3cfeebb220 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -524,6 +524,8 @@ virDomainNetTypeFromString;
virDomainNetTypeSharesHostView;
virDomainNetTypeToString;
virDomainNetUpdate;
+virDomainNetDHCPInterfaces;
+virDomainNetARPInterfaces;
virDomainNostateReasonTypeFromString;
virDomainNostateReasonTypeToString;
virDomainObjAssignDef;
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 2f66d7cd9a..0a1dc414ae 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -22040,139 +22040,6 @@ qemuDomainGetFSInfo(virDomainPtr dom,
}
-static int
-qemuGetDHCPInterfaces(virDomainObjPtr vm,
- virDomainInterfacePtr **ifaces)
-{
- g_autoptr(virConnect) conn = NULL;
- virDomainInterfacePtr *ifaces_ret = NULL;
- size_t ifaces_count = 0;
- size_t i;
-
- if (!(conn = virGetConnectNetwork()))
- return -1;
-
- for (i = 0; i < vm->def->nnets; i++) {
- g_autoptr(virNetwork) network = NULL;
- char macaddr[VIR_MAC_STRING_BUFLEN];
- virNetworkDHCPLeasePtr *leases = NULL;
- int n_leases = 0;
- virDomainInterfacePtr iface = NULL;
- size_t j;
-
- if (vm->def->nets[i]->type != VIR_DOMAIN_NET_TYPE_NETWORK)
- continue;
-
- virMacAddrFormat(&(vm->def->nets[i]->mac), macaddr);
-
- network = virNetworkLookupByName(conn,
- vm->def->nets[i]->data.network.name);
- if (!network)
- goto error;
-
- if ((n_leases = virNetworkGetDHCPLeases(network, macaddr,
- &leases, 0)) < 0)
- goto error;
-
- if (n_leases) {
- ifaces_ret = g_renew(typeof(*ifaces_ret), ifaces_ret, ifaces_count + 1);
- ifaces_ret[ifaces_count] = g_new0(typeof(**ifaces_ret), 1);
- iface = ifaces_ret[ifaces_count];
- ifaces_count++;
-
- /* Assuming each lease corresponds to a separate IP */
- iface->naddrs = n_leases;
- iface->addrs = g_new0(typeof(*iface->addrs), iface->naddrs);
- iface->name = g_strdup(vm->def->nets[i]->ifname);
- iface->hwaddr = g_strdup(macaddr);
- }
-
- for (j = 0; j < n_leases; j++) {
- virNetworkDHCPLeasePtr lease = leases[j];
- virDomainIPAddressPtr ip_addr = &iface->addrs[j];
-
- ip_addr->addr = g_strdup(lease->ipaddr);
- ip_addr->type = lease->type;
- ip_addr->prefix = lease->prefix;
-
- virNetworkDHCPLeaseFree(lease);
- }
-
- VIR_FREE(leases);
- }
-
- *ifaces = g_steal_pointer(&ifaces_ret);
- return ifaces_count;
-
- error:
- if (ifaces_ret) {
- for (i = 0; i < ifaces_count; i++)
- virDomainInterfaceFree(ifaces_ret[i]);
- }
- VIR_FREE(ifaces_ret);
-
- return -1;
-}
-
-
-static int
-qemuARPGetInterfaces(virDomainObjPtr vm,
- virDomainInterfacePtr **ifaces)
-{
- size_t i, j;
- size_t ifaces_count = 0;
- int ret = -1;
- char macaddr[VIR_MAC_STRING_BUFLEN];
- virDomainInterfacePtr *ifaces_ret = NULL;
- virDomainInterfacePtr iface = NULL;
- virArpTablePtr table;
-
- table = virArpTableGet();
- if (!table)
- goto cleanup;
-
- for (i = 0; i < vm->def->nnets; i++) {
- virMacAddrFormat(&(vm->def->nets[i]->mac), macaddr);
- for (j = 0; j < table->n; j++) {
- virArpTableEntry entry = table->t[j];
-
- if (STREQ(entry.mac, macaddr)) {
- if (VIR_ALLOC(iface) < 0)
- goto cleanup;
-
- iface->name = g_strdup(vm->def->nets[i]->ifname);
-
- iface->hwaddr = g_strdup(macaddr);
-
- if (VIR_ALLOC(iface->addrs) < 0)
- goto cleanup;
- iface->naddrs = 1;
-
- iface->addrs->addr = g_strdup(entry.ipaddr);
-
- if (VIR_APPEND_ELEMENT(ifaces_ret, ifaces_count, iface) < 0)
- goto cleanup;
- }
- }
- }
-
- *ifaces = g_steal_pointer(&ifaces_ret);
- ret = ifaces_count;
-
- cleanup:
- virArpTableFree(table);
- virDomainInterfaceFree(iface);
-
- if (ifaces_ret) {
- for (i = 0; i < ifaces_count; i++)
- virDomainInterfaceFree(ifaces_ret[i]);
- }
- VIR_FREE(ifaces_ret);
-
- return ret;
-}
-
-
static int
qemuDomainInterfaceAddresses(virDomainPtr dom,
virDomainInterfacePtr **ifaces,
@@ -22197,7 +22064,7 @@ qemuDomainInterfaceAddresses(virDomainPtr dom,
switch (source) {
case VIR_DOMAIN_INTERFACE_ADDRESSES_SRC_LEASE:
- ret = qemuGetDHCPInterfaces(vm, ifaces);
+ ret = virDomainNetDHCPInterfaces(vm->def, ifaces);
break;
case VIR_DOMAIN_INTERFACE_ADDRESSES_SRC_AGENT:
@@ -22217,7 +22084,7 @@ qemuDomainInterfaceAddresses(virDomainPtr dom,
break;
case VIR_DOMAIN_INTERFACE_ADDRESSES_SRC_ARP:
- ret = qemuARPGetInterfaces(vm, ifaces);
+ ret = virDomainNetARPInterfaces(vm->def, ifaces);
break;
default:
--
2.20.1
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