[Libvirt-cim] [PATCH] Add ReferenceConfiguration support to VSMS
Dan Smith
danms at us.ibm.com
Mon Jul 21 20:28:19 UTC 2008
# HG changeset patch
# User Dan Smith <danms at us.ibm.com>
# Date 1216672093 25200
# Node ID 427e74d2c45881820ee33b8b6cdeb9cff57a68c0
# Parent 542f77ab01389702ff1358f04b0d55c8f052067a
Add ReferenceConfiguration support to VSMS
This accomplishes that goal by doing a full get_dominfo() instead of
a blank dominfo alloc in the event that the client passed in a
ReferenceConfiguration object path.
Also fix a few unchecked calloc() calls while touching them. Also
make sure we're only ever editing the first memory or processor device
in the list, during the domain building process.
Signed-off-by: Dan Smith <danms at us.ibm.com>
diff -r 542f77ab0138 -r 427e74d2c458 src/Virt_VirtualSystemManagementService.c
--- a/src/Virt_VirtualSystemManagementService.c Mon Jul 21 09:02:26 2008 -0700
+++ b/src/Virt_VirtualSystemManagementService.c Mon Jul 21 13:28:13 2008 -0700
@@ -68,24 +68,34 @@
static CMPIStatus define_system_parse_args(const CMPIArgs *argsin,
CMPIInstance **sys,
const char *ns,
- CMPIArray **res)
+ CMPIArray **res,
+ CMPIObjectPath **refconf)
{
- CMPIStatus s = {CMPI_RC_ERR_FAILED, NULL};
+ CMPIStatus s = {CMPI_RC_OK, NULL};
if (cu_get_inst_arg(argsin, "SystemSettings", sys) != CMPI_RC_OK) {
CU_DEBUG("No SystemSettings string argument");
+ cu_statusf(_BROKER, &s,
+ CMPI_RC_ERR_INVALID_PARAMETER,
+ "Missing argument `SystemSettings'");
goto out;
}
if (cu_get_array_arg(argsin, "ResourceSettings", res) !=
CMPI_RC_OK) {
CU_DEBUG("Failed to get array arg");
+ cu_statusf(_BROKER, &s,
+ CMPI_RC_ERR_INVALID_PARAMETER,
+ "Missing argument `ResourceSettings'");
goto out;
}
- cu_statusf(_BROKER, &s,
- CMPI_RC_OK,
- "");
+ if (cu_get_ref_arg(argsin, "ReferenceConfiguration", refconf) !=
+ CMPI_RC_OK) {
+ CU_DEBUG("Did not get ReferenceConfiguration arg");
+ *refconf = NULL;
+ goto out;
+ }
out:
return s;
}
@@ -565,6 +575,20 @@
return msg;
}
+static bool make_space(struct virt_device **list, int cur, int new)
+{
+ struct virt_device *tmp;
+
+ tmp = calloc(cur + new, sizeof(*tmp));
+ if (tmp == NULL)
+ return false;
+
+ memcpy(tmp, *list, sizeof(*tmp) * cur);
+ *list = tmp;
+
+ return true;
+}
+
static const char *classify_resources(CMPIArray *resources,
const char *ns,
struct domain *domain)
@@ -573,17 +597,21 @@
uint16_t type;
int count;
- domain->dev_disk_ct = domain->dev_net_ct = 0;
- domain->dev_vcpu_ct = domain->dev_mem_ct = 0;
-
count = CMGetArrayCount(resources, NULL);
if (count < 1)
return "No resources specified";
- domain->dev_disk = calloc(count, sizeof(struct virt_device));
- domain->dev_vcpu = calloc(count, sizeof(struct virt_device));
- domain->dev_mem = calloc(count, sizeof(struct virt_device));
- domain->dev_net = calloc(count, sizeof(struct virt_device));
+ if (!make_space(&domain->dev_disk, domain->dev_disk_ct, count))
+ return "Failed to alloc disk list";
+
+ if (!make_space(&domain->dev_vcpu, domain->dev_vcpu_ct, count))
+ return "Failed to alloc vcpu list";
+
+ if (!make_space(&domain->dev_mem, domain->dev_mem_ct, count))
+ return "Failed to alloc mem list";
+
+ if (!make_space(&domain->dev_net, domain->dev_net_ct, count))
+ return "Failed to alloc net list";
for (i = 0; i < count; i++) {
CMPIObjectPath *op;
@@ -605,27 +633,29 @@
CMPI_RC_OK)
return "Unable to determine resource type";
- if (type == CIM_RES_TYPE_PROC)
+ if (type == CIM_RES_TYPE_PROC) {
+ domain->dev_vcpu_ct = 1;
msg = rasd_to_vdev(inst,
domain,
- &domain->dev_vcpu[domain->dev_vcpu_ct++],
+ &domain->dev_vcpu[0],
ns);
- else if (type == CIM_RES_TYPE_MEM)
+ } else if (type == CIM_RES_TYPE_MEM) {
+ domain->dev_mem_ct = 1;
msg = rasd_to_vdev(inst,
domain,
- &domain->dev_mem[domain->dev_mem_ct++],
+ &domain->dev_mem[0],
ns);
- else if (type == CIM_RES_TYPE_DISK)
+ } else if (type == CIM_RES_TYPE_DISK) {
msg = rasd_to_vdev(inst,
domain,
&domain->dev_disk[domain->dev_disk_ct++],
ns);
- else if (type == CIM_RES_TYPE_NET)
+ } else if (type == CIM_RES_TYPE_NET) {
msg = rasd_to_vdev(inst,
domain,
&domain->dev_net[domain->dev_net_ct++],
ns);
-
+ }
if (msg != NULL)
return msg;
@@ -722,23 +752,125 @@
return s;
}
+static CMPIStatus match_prefixes(const CMPIObjectPath *a,
+ const CMPIObjectPath *b)
+{
+ char *pfx1;
+ char *pfx2;
+ CMPIStatus s = {CMPI_RC_OK, NULL};
+
+ pfx1 = class_prefix_name(CLASSNAME(a));
+ pfx2 = class_prefix_name(CLASSNAME(b));
+
+ if ((pfx1 == NULL) || (pfx2 == NULL)) {
+ cu_statusf(_BROKER, &s,
+ CMPI_RC_ERR_FAILED,
+ "Unable compare ReferenceConfiguration prefix");
+ goto out;
+ }
+
+ if (!STREQ(pfx1, pfx2)) {
+ cu_statusf(_BROKER, &s,
+ CMPI_RC_ERR_INVALID_CLASS,
+ "ReferenceConfiguration domain is not compatible");
+ goto out;
+ }
+ out:
+ free(pfx1);
+ free(pfx2);
+
+ return s;
+}
+
+static CMPIStatus get_reference_domain(struct domain **domain,
+ const CMPIObjectPath *ref,
+ const CMPIObjectPath *refconf)
+{
+ virConnectPtr conn = NULL;
+ virDomainPtr dom = NULL;
+ const char *name;
+ CMPIStatus s;
+ int ret;
+
+ s = match_prefixes(ref, refconf);
+ if (s.rc != CMPI_RC_OK)
+ return s;
+
+ conn = connect_by_classname(_BROKER, CLASSNAME(refconf), &s);
+ if (conn == NULL) {
+ if (s.rc != CMPI_RC_OK)
+ return s;
+ else {
+ cu_statusf(_BROKER, &s,
+ CMPI_RC_ERR_FAILED,
+ "Unable to connect to libvirt");
+ return s;
+ }
+ }
+
+ if (cu_get_str_path(refconf, "Name", &name) != CMPI_RC_OK) {
+ CU_DEBUG("Missing Name parameter");
+ cu_statusf(_BROKER, &s,
+ CMPI_RC_ERR_INVALID_PARAMETER,
+ "Missing `Name' from ReferenceConfiguration");
+ goto out;
+ }
+
+ CU_DEBUG("Referenced domain: %s", name);
+
+ dom = virDomainLookupByName(conn, name);
+ if (dom == NULL) {
+ cu_statusf(_BROKER, &s,
+ CMPI_RC_ERR_NOT_FOUND,
+ "Referenced domain `%s' does not exist", name);
+ goto out;
+ }
+
+ ret = get_dominfo(dom, domain);
+ if (ret == 0) {
+ cu_statusf(_BROKER, &s,
+ CMPI_RC_ERR_FAILED,
+ "Error getting referenced configuration");
+ goto out;
+ }
+
+ /* Scrub the unique bits out of the reference domain config */
+ free((*domain)->name);
+ (*domain)->name = NULL;
+ free((*domain)->uuid);
+ (*domain)->uuid = NULL;
+
+ out:
+ virDomainFree(dom);
+ virConnectClose(conn);
+
+ return s;
+}
+
static CMPIInstance *create_system(CMPIInstance *vssd,
CMPIArray *resources,
const CMPIObjectPath *ref,
+ const CMPIObjectPath *refconf,
CMPIStatus *s)
{
CMPIInstance *inst = NULL;
char *xml = NULL;
const char *msg = NULL;
- struct domain *domain;
+ struct domain *domain = NULL;
- domain = calloc(1, sizeof(*domain));
- if (domain == NULL) {
- cu_statusf(_BROKER, s,
- CMPI_RC_ERR_FAILED,
- "Failed to allocate memory");
- goto out;
+ if (refconf != NULL) {
+ *s = get_reference_domain(&domain, ref, refconf);
+ if (s->rc != CMPI_RC_OK)
+ goto out;
+ } else {
+ domain = calloc(1, sizeof(*domain));
+ if (domain == NULL) {
+ cu_statusf(_BROKER, s,
+ CMPI_RC_ERR_FAILED,
+ "Failed to allocate memory");
+ goto out;
+ }
}
if (!vssd_to_domain(vssd, domain)) {
@@ -795,6 +927,7 @@
const CMPIArgs *argsin,
CMPIArgs *argsout)
{
+ CMPIObjectPath *refconf;
CMPIInstance *vssd;
CMPIInstance *sys;
CMPIArray *res;
@@ -802,11 +935,15 @@
CU_DEBUG("DefineSystem");
- s = define_system_parse_args(argsin, &vssd, NAMESPACE(reference), &res);
+ s = define_system_parse_args(argsin,
+ &vssd,
+ NAMESPACE(reference),
+ &res,
+ &refconf);
if (s.rc != CMPI_RC_OK)
goto out;
- sys = create_system(vssd, res, reference, &s);
+ sys = create_system(vssd, res, reference, refconf, &s);
if (sys == NULL)
goto out;
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