3:59 a.m.
Now that we have a module that's able to track
<domain, mac addres list> pairs, hook it up into
our network driver.
Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com>
---
src/conf/network_conf.h | 4 ++
src/network/bridge_driver.c | 93 +++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 97 insertions(+)
diff --git a/src/conf/network_conf.h b/src/conf/network_conf.h
index 3b227db..e95d68d 100644
--- a/src/conf/network_conf.h
+++ b/src/conf/network_conf.h
@@ -41,6 +41,7 @@
# include "virbitmap.h"
# include "networkcommon_conf.h"
# include "virobject.h"
+# include "virmacmap.h"
typedef enum {
VIR_NETWORK_FORWARD_NONE = 0,
@@ -284,6 +285,9 @@ struct _virNetworkObj {
unsigned long long floor_sum; /* sum of all 'floor'-s of attached NICs */
unsigned int taint;
+
+ /* Immutable pointer, self locking APIs */
+ virMACMapMgrPtr macmap;
};
virNetworkObjPtr virNetworkObjNew(void);
diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c
index 073f501..435601a 100644
--- a/src/network/bridge_driver.c
+++ b/src/network/bridge_driver.c
@@ -289,6 +289,17 @@ networkRadvdConfigFileName(virNetworkDriverStatePtr driver,
return configfile;
}
+static char *
+networkMacMgrFileName(virNetworkDriverStatePtr driver,
+ const char *bridge)
+{
+ char *filename;
+
+ ignore_value(virAsprintf(&filename, "%s/%s.macs",
+ driver->dnsmasqStateDir, bridge));
+ return filename;
+}
+
/* do needed cleanup steps and remove the network from the list */
static int
networkRemoveInactive(virNetworkDriverStatePtr driver,
@@ -300,6 +311,7 @@ networkRemoveInactive(virNetworkDriverStatePtr driver,
char *configfile = NULL;
char *radvdpidbase = NULL;
char *statusfile = NULL;
+ char *macMapFile = NULL;
dnsmasqContext *dctx = NULL;
virNetworkDefPtr def = virNetworkObjGetPersistentDef(net);
@@ -329,12 +341,18 @@ networkRemoveInactive(virNetworkDriverStatePtr driver,
if (!(statusfile = virNetworkConfigFile(driver->stateDir, def->name)))
goto cleanup;
+ if (!(macMapFile = networkMacMgrFileName(driver, def->bridge)))
+ goto cleanup;
+
/* dnsmasq */
dnsmasqDelete(dctx);
unlink(leasefile);
unlink(customleasefile);
unlink(configfile);
+ /* MAC map manager */
+ unlink(macMapFile);
+
/* radvd */
unlink(radvdconfigfile);
virPidFileDelete(driver->pidDir, radvdpidbase);
@@ -354,10 +372,71 @@ networkRemoveInactive(virNetworkDriverStatePtr driver,
VIR_FREE(radvdconfigfile);
VIR_FREE(radvdpidbase);
VIR_FREE(statusfile);
+ VIR_FREE(macMapFile);
dnsmasqContextFree(dctx);
return ret;
}
+static int
+networkMacMgrAdd(virNetworkDriverStatePtr driver,
+ virNetworkObjPtr network,
+ const char *domain,
+ const virMacAddr *mac)
+{
+ char macStr[VIR_MAC_STRING_BUFLEN];
+ char *file = NULL;
+ int ret = -1;
+
+ if (!network->macmap)
+ return 0;
+
+ virMacAddrFormat(mac, macStr);
+
+ if (!(file = networkMacMgrFileName(driver, network->def->bridge)))
+ goto cleanup;
+
+ if (virMACMapMgrAdd(network->macmap, domain, macStr) < 0)
+ goto cleanup;
+
+ if (virMACMapMgrFlush(network->macmap, file) < 0)
+ goto cleanup;
+
+ ret = 0;
+ cleanup:
+ VIR_FREE(file);
+ return ret;
+}
+
+static int
+networkMacMgrDel(virNetworkDriverStatePtr driver,
+ virNetworkObjPtr network,
+ const char *domain,
+ const virMacAddr *mac)
+{
+ char macStr[VIR_MAC_STRING_BUFLEN];
+ char *file = NULL;
+ int ret = -1;
+
+ if (!network->macmap)
+ return 0;
+
+ virMacAddrFormat(mac, macStr);
+
+ if (!(file = networkMacMgrFileName(driver, network->def->bridge)))
+ goto cleanup;
+
+ if (virMACMapMgrRemove(network->macmap, domain, macStr) < 0)
+ goto cleanup;
+
+ if (virMACMapMgrFlush(network->macmap, file) < 0)
+ goto cleanup;
+
+ ret = 0;
+ cleanup:
+ VIR_FREE(file);
+ return ret;
+}
+
static char *
networkBridgeDummyNicName(const char *brname)
{
@@ -2127,6 +2206,7 @@ networkStartNetworkVirtual(virNetworkDriverStatePtr driver,
virNetworkIPDefPtr ipdef;
virNetDevIPRoutePtr routedef;
char *macTapIfName = NULL;
+ char *macMapFile = NULL;
int tapfd = -1;
/* Check to see if any network IP collides with an existing route */
@@ -2173,6 +2253,10 @@ networkStartNetworkVirtual(virNetworkDriverStatePtr driver,
}
}
+ if (!(macMapFile = networkMacMgrFileName(driver, network->def->bridge)) ||
+ !(network->macmap = virMACMapMgrNew(macMapFile)))
+ goto err1;
+
/* Set bridge options */
/* delay is configured in seconds, but virNetDevBridgeSetSTPDelay
@@ -2272,6 +2356,7 @@ networkStartNetworkVirtual(virNetworkDriverStatePtr driver,
goto err5;
VIR_FREE(macTapIfName);
+ VIR_FREE(macMapFile);
return 0;
@@ -2308,6 +2393,7 @@ networkStartNetworkVirtual(virNetworkDriverStatePtr driver,
ignore_value(virNetDevTapDelete(macTapIfName, NULL));
VIR_FREE(macTapIfName);
}
+ VIR_FREE(macMapFile);
err0:
if (!save_err)
@@ -2329,6 +2415,8 @@ networkShutdownNetworkVirtual(virNetworkDriverStatePtr driver,
if (network->def->bandwidth)
virNetDevBandwidthClear(network->def->bridge);
+ virObjectUnref(network->macmap);
+
if (network->radvdPid > 0) {
char *radvdpidbase;
@@ -4353,6 +4441,9 @@ networkAllocateActualDevice(virDomainDefPtr dom,
}
}
+ if (networkMacMgrAdd(driver, network, dom->name, &iface->mac) < 0)
+ goto error;
+
if (virNetDevVPortProfileCheckComplete(virtport, true) < 0)
goto error;
@@ -4739,6 +4830,8 @@ networkReleaseActualDevice(virDomainDefPtr dom,
}
success:
+ networkMacMgrDel(driver, network, dom->name, &iface->mac);
+
if (iface->data.network.actual) {
netdef->connections--;
if (dev)
--
2.8.4