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https://gitlab.com/libvirt/libvirt.git
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conf: audit: Split out common steps to audit domain devices
Extract common operations done when creating an audit message to a separate generic function that can be reused and convert RNG, disk, FS and net audit to use it.
This commit is contained in:
Peter Krempa
parent
43ca0c542e
commit
45c81cbb45
@ -93,46 +93,73 @@ virDomainAuditChardevPath(virDomainChrSourceDefPtr chr)
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}
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static void
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virDomainAuditGenericDev(virDomainObjPtr vm,
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const char *type,
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const char *oldsrcpath,
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const char *newsrcpath,
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const char *reason,
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bool success)
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{
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char *newdev = NULL;
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char *olddev = NULL;
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char uuidstr[VIR_UUID_STRING_BUFLEN];
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char *vmname = NULL;
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char *oldsrc = NULL;
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char *newsrc = NULL;
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const char *virt;
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/* if both new and old source aren't provided don't log anything */
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if (!newsrcpath && !oldsrcpath)
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return;
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if (virAsprintfQuiet(&newdev, "new-%s", type) < 0)
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goto no_memory;
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if (virAsprintfQuiet(&olddev, "old-%s", type) < 0)
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goto no_memory;
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virUUIDFormat(vm->def->uuid, uuidstr);
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if (!(vmname = virAuditEncode("vm", vm->def->name)))
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goto no_memory;
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if (!(virt = virDomainVirtTypeToString(vm->def->virtType))) {
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VIR_WARN("Unexpected virt type %d while encoding audit message",
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vm->def->virtType);
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virt = "?";
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}
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if (!(newsrc = virAuditEncode(newdev, VIR_AUDIT_STR(newsrcpath))))
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goto no_memory;
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if (!(oldsrc = virAuditEncode(olddev, VIR_AUDIT_STR(oldsrcpath))))
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goto no_memory;
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VIR_AUDIT(VIR_AUDIT_RECORD_RESOURCE, success,
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"virt=%s resrc=%s reason=%s %s uuid=%s %s %s",
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virt, type, reason, vmname, uuidstr, oldsrc, newsrc);
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cleanup:
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VIR_FREE(newdev);
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VIR_FREE(olddev);
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VIR_FREE(vmname);
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VIR_FREE(oldsrc);
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VIR_FREE(newsrc);
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return;
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no_memory:
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VIR_WARN("OOM while encoding audit message");
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goto cleanup;
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}
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void
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virDomainAuditDisk(virDomainObjPtr vm,
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const char *oldDef, const char *newDef,
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const char *reason, bool success)
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{
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char uuidstr[VIR_UUID_STRING_BUFLEN];
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char *vmname;
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char *oldsrc = NULL;
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char *newsrc = NULL;
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const char *virt;
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virUUIDFormat(vm->def->uuid, uuidstr);
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if (!(vmname = virAuditEncode("vm", vm->def->name))) {
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VIR_WARN("OOM while encoding audit message");
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return;
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}
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if (!(virt = virDomainVirtTypeToString(vm->def->virtType))) {
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VIR_WARN("Unexpected virt type %d while encoding audit message", vm->def->virtType);
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virt = "?";
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}
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if (!(oldsrc = virAuditEncode("old-disk", VIR_AUDIT_STR(oldDef)))) {
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VIR_WARN("OOM while encoding audit message");
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goto cleanup;
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}
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if (!(newsrc = virAuditEncode("new-disk", VIR_AUDIT_STR(newDef)))) {
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VIR_WARN("OOM while encoding audit message");
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goto cleanup;
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}
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VIR_AUDIT(VIR_AUDIT_RECORD_RESOURCE, success,
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"virt=%s resrc=disk reason=%s %s uuid=%s %s %s",
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virt, reason, vmname, uuidstr,
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oldsrc, newsrc);
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cleanup:
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VIR_FREE(vmname);
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VIR_FREE(oldsrc);
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VIR_FREE(newsrc);
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virDomainAuditGenericDev(vm, "disk", oldDef, newDef, reason, success);
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}
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@ -141,13 +168,8 @@ virDomainAuditRNG(virDomainObjPtr vm,
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virDomainRNGDefPtr oldDef, virDomainRNGDefPtr newDef,
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const char *reason, bool success)
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{
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char uuidstr[VIR_UUID_STRING_BUFLEN];
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char *vmname;
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const char *newsrcpath = NULL;
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const char *oldsrcpath = NULL;
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char *oldsrc = NULL;
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char *newsrc = NULL;
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const char *virt;
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if (newDef) {
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switch ((virDomainRNGBackend) newDef->backend) {
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@ -185,40 +207,7 @@ virDomainAuditRNG(virDomainObjPtr vm,
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}
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}
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/* don't audit the RNG device if it doesn't use local resources */
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if (!oldsrcpath && !newsrcpath)
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return;
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virUUIDFormat(vm->def->uuid, uuidstr);
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if (!(vmname = virAuditEncode("vm", vm->def->name)))
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goto no_memory;
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if (!(virt = virDomainVirtTypeToString(vm->def->virtType))) {
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VIR_WARN("Unexpected virt type %d while encoding audit message",
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vm->def->virtType);
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virt = "?";
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}
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if (!(newsrc = virAuditEncode("new-rng", VIR_AUDIT_STR(newsrcpath))))
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goto no_memory;
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if (!(oldsrc = virAuditEncode("old-rng", VIR_AUDIT_STR(oldsrcpath))))
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goto no_memory;
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VIR_AUDIT(VIR_AUDIT_RECORD_RESOURCE, success,
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"virt=%s resrc=rng reason=%s %s uuid=%s %s %s",
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virt, reason, vmname, uuidstr,
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oldsrc, newsrc);
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cleanup:
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VIR_FREE(vmname);
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VIR_FREE(oldsrc);
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VIR_FREE(newsrc);
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return;
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no_memory:
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VIR_WARN("OOM while encoding audit message");
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goto cleanup;
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virDomainAuditGenericDev(vm, "rng", oldsrcpath, newsrcpath, reason, success);
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}
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@ -227,45 +216,10 @@ virDomainAuditFS(virDomainObjPtr vm,
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virDomainFSDefPtr oldDef, virDomainFSDefPtr newDef,
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const char *reason, bool success)
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{
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char uuidstr[VIR_UUID_STRING_BUFLEN];
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char *vmname;
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char *oldsrc = NULL;
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char *newsrc = NULL;
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const char *virt;
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virUUIDFormat(vm->def->uuid, uuidstr);
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if (!(vmname = virAuditEncode("vm", vm->def->name))) {
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VIR_WARN("OOM while encoding audit message");
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return;
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}
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if (!(virt = virDomainVirtTypeToString(vm->def->virtType))) {
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VIR_WARN("Unexpected virt type %d while encoding audit message", vm->def->virtType);
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virt = "?";
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}
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if (!(oldsrc = virAuditEncode("old-fs",
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oldDef && oldDef->src ?
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oldDef->src : "?"))) {
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VIR_WARN("OOM while encoding audit message");
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goto cleanup;
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}
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if (!(newsrc = virAuditEncode("new-fs",
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newDef && newDef->src ?
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newDef->src : "?"))) {
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VIR_WARN("OOM while encoding audit message");
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goto cleanup;
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}
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VIR_AUDIT(VIR_AUDIT_RECORD_RESOURCE, success,
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"virt=%s resrc=fs reason=%s %s uuid=%s %s %s",
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virt, reason, vmname, uuidstr,
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oldsrc, newsrc);
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cleanup:
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VIR_FREE(vmname);
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VIR_FREE(oldsrc);
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VIR_FREE(newsrc);
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virDomainAuditGenericDev(vm, "fs",
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oldDef ? oldDef->src : NULL,
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newDef ? newDef->src : NULL,
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reason, success);
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}
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@ -274,34 +228,19 @@ virDomainAuditNet(virDomainObjPtr vm,
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virDomainNetDefPtr oldDef, virDomainNetDefPtr newDef,
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const char *reason, bool success)
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{
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char uuidstr[VIR_UUID_STRING_BUFLEN];
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char newMacstr[VIR_MAC_STRING_BUFLEN];
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char oldMacstr[VIR_MAC_STRING_BUFLEN];
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char *vmname;
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const char *virt;
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virUUIDFormat(vm->def->uuid, uuidstr);
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if (oldDef)
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virMacAddrFormat(&oldDef->mac, oldMacstr);
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if (newDef)
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virMacAddrFormat(&newDef->mac, newMacstr);
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if (!(vmname = virAuditEncode("vm", vm->def->name))) {
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VIR_WARN("OOM while encoding audit message");
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return;
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}
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if (!(virt = virDomainVirtTypeToString(vm->def->virtType))) {
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VIR_WARN("Unexpected virt type %d while encoding audit message", vm->def->virtType);
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virt = "?";
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}
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VIR_AUDIT(VIR_AUDIT_RECORD_RESOURCE, success,
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"virt=%s resrc=net reason=%s %s uuid=%s old-net=%s new-net=%s",
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virt, reason, vmname, uuidstr,
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oldDef ? oldMacstr : "?",
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newDef ? newMacstr : "?");
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VIR_FREE(vmname);
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virDomainAuditGenericDev(vm, "net",
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oldDef ? oldMacstr : NULL,
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newDef ? newMacstr : NULL,
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reason, success);
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}
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/**
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