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cpu: Wire in XML validation

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This adds a new value to virConnectCompareCPUFlags,
"VIR_CONNECT_CPU_VALIDATE_XML", that governs XML document validation in
virCPUDefParseXML.

In src/conf/cpu_conf.c, include configmake.h for PKGDATADIR and
virfile.h for virFileFindResource.

Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
This commit is contained in:
Tim Wiederhake 2020-10-07 10:54:55 +02:00 committed by Peter Krempa
parent 9faa31ce79
commit 4c3ed3b84e
12 changed files with 65 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/libvirt/libvirt-host.h
View File

@ -754,6 +754,8 @@ typedef enum {
typedef enum {
VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE = (1 << 0), /* treat incompatible
CPUs as failure */
VIR_CONNECT_COMPARE_CPU_VALIDATE_XML = (1 << 1), /* validate the xml
document */
} virConnectCompareCPUFlags;
int virConnectCompareCPU(virConnectPtr conn,

7
src/bhyve/bhyve_driver.c
View File

@ -1441,14 +1441,17 @@ bhyveConnectCompareCPU(virConnectPtr conn,
int ret = VIR_CPU_COMPARE_ERROR;
virCapsPtr caps = NULL;
bool failIncompatible;
bool validateXML;
virCheckFlags(VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE,
virCheckFlags(VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE |
VIR_CONNECT_COMPARE_CPU_VALIDATE_XML,
VIR_CPU_COMPARE_ERROR);
if (virConnectCompareCPUEnsureACL(conn) < 0)
goto cleanup;
failIncompatible = !!(flags & VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE);
validateXML = !!(flags & VIR_CONNECT_COMPARE_CPU_VALIDATE_XML);
if (!(caps = bhyveDriverGetCapabilities(driver)))
goto cleanup;
@ -1464,7 +1467,7 @@ bhyveConnectCompareCPU(virConnectPtr conn,
}
} else {
ret = virCPUCompareXML(caps->host.arch, caps->host.cpu,
xmlDesc, failIncompatible);
xmlDesc, failIncompatible, validateXML);
}
cleanup:

25
src/conf/cpu_conf.c
View File

@ -20,9 +20,11 @@
#include <config.h>
#include "configmake.h"
#include "virerror.h"
#include "viralloc.h"
#include "virbuffer.h"
#include "virfile.h"
#include "cpu_conf.h"
#include "domain_conf.h"
#include "virstring.h"
@ -281,7 +283,8 @@ virCPUDefCopy(const virCPUDef *cpu)
int
virCPUDefParseXMLString(const char *xml,
virCPUType type,
virCPUDefPtr *cpu)
virCPUDefPtr *cpu,
bool validateXML)
{
xmlDocPtr doc = NULL;
xmlXPathContextPtr ctxt = NULL;
@ -295,7 +298,7 @@ virCPUDefParseXMLString(const char *xml,
if (!(doc = virXMLParseStringCtxt(xml, _("(CPU_definition)"), &ctxt)))
goto cleanup;
if (virCPUDefParseXML(ctxt, NULL, type, cpu) < 0)
if (virCPUDefParseXML(ctxt, NULL, type, cpu, validateXML) < 0)
goto cleanup;
ret = 0;
@ -323,7 +326,8 @@ int
virCPUDefParseXML(xmlXPathContextPtr ctxt,
const char *xpath,
virCPUType type,
virCPUDefPtr *cpu)
virCPUDefPtr *cpu,
bool validateXML)
{
g_autoptr(virCPUDef) def = NULL;
g_autofree xmlNodePtr *nodes = NULL;
@ -348,6 +352,19 @@ virCPUDefParseXML(xmlXPathContextPtr ctxt,
return -1;
}
if (validateXML) {
g_autofree char *schemafile = NULL;
if (!(schemafile = virFileFindResource("cpu.rng",
abs_top_srcdir "/docs/schemas",
PKGDATADIR "/schemas")))
return -1;
if (virXMLValidateNodeAgainstSchema(schemafile, ctxt->doc,
ctxt->node) < 0)
return -1;
}
def = virCPUDefNew();
if (type == VIR_CPU_TYPE_AUTO) {
@ -1146,7 +1163,7 @@ virCPUDefListParse(const char **xmlCPUs,
if (!(doc = virXMLParseStringCtxt(xmlCPUs[i], _("(CPU_definition)"), &ctxt)))
goto error;
if (virCPUDefParseXML(ctxt, NULL, cpuType, &cpus[i]) < 0)
if (virCPUDefParseXML(ctxt, NULL, cpuType, &cpus[i], false) < 0)
goto error;
xmlXPathFreeContext(ctxt);

6
src/conf/cpu_conf.h
View File

@ -192,13 +192,15 @@ virCPUDefCopyWithoutModel(const virCPUDef *cpu);
int
virCPUDefParseXMLString(const char *xml,
virCPUType type,
virCPUDefPtr *cpu);
virCPUDefPtr *cpu,
bool validateXML);
int
virCPUDefParseXML(xmlXPathContextPtr ctxt,
const char *xpath,
virCPUType mode,
virCPUDefPtr *cpu);
virCPUDefPtr *cpu,
bool validateXML);
bool
virCPUDefIsEqual(virCPUDefPtr src,

3
src/conf/domain_conf.c
View File

@ -21917,7 +21917,8 @@ virDomainDefParseXML(xmlDocPtr xml,
if (virDomainDefTunablesParse(def, ctxt, xmlopt, flags) < 0)
goto error;
if (virCPUDefParseXML(ctxt, "./cpu[1]", VIR_CPU_TYPE_GUEST, &def->cpu) < 0)
if (virCPUDefParseXML(ctxt, "./cpu[1]", VIR_CPU_TYPE_GUEST, &def->cpu,
false) < 0)
goto error;
if (virDomainNumaDefParseXML(def->numa, ctxt) < 0)

5
src/cpu/cpu.c
View File

@ -109,14 +109,15 @@ virCPUCompareResult
virCPUCompareXML(virArch arch,
virCPUDefPtr host,
const char *xml,
bool failIncompatible)
bool failIncompatible,
bool validateXML)
{
g_autoptr(virCPUDef) cpu = NULL;
VIR_DEBUG("arch=%s, host=%p, xml=%s",
virArchToString(arch), host, NULLSTR(xml));
if (virCPUDefParseXMLString(xml, VIR_CPU_TYPE_AUTO, &cpu) < 0)
if (virCPUDefParseXMLString(xml, VIR_CPU_TYPE_AUTO, &cpu, validateXML) < 0)
return VIR_CPU_COMPARE_ERROR;
return virCPUCompare(arch, host, cpu, failIncompatible);

3
src/cpu/cpu.h
View File

@ -153,7 +153,8 @@ virCPUCompareResult
virCPUCompareXML(virArch arch,
virCPUDefPtr host,
const char *xml,
bool failIncompatible);
bool failIncompatible,
bool validateXML);
virCPUCompareResult
virCPUCompare(virArch arch,

7
src/libxl/libxl_driver.c
View File

@ -6529,19 +6529,22 @@ libxlConnectCompareCPU(virConnectPtr conn,
libxlDriverConfigPtr cfg;
int ret = VIR_CPU_COMPARE_ERROR;
bool failIncompatible;
bool validateXML;
virCheckFlags(VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE,
virCheckFlags(VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE |
VIR_CONNECT_COMPARE_CPU_VALIDATE_XML,
VIR_CPU_COMPARE_ERROR);
if (virConnectCompareCPUEnsureACL(conn) < 0)
return ret;
failIncompatible = !!(flags & VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE);
validateXML = !!(flags & VIR_CONNECT_COMPARE_CPU_VALIDATE_XML);
cfg = libxlDriverConfigGet(driver);
ret = virCPUCompareXML(cfg->caps->host.arch, cfg->caps->host.cpu,
xmlDesc, failIncompatible);
xmlDesc, failIncompatible, validateXML);
virObjectUnref(cfg);
return ret;

5
src/qemu/qemu_domain.c
View File

@ -3130,7 +3130,8 @@ qemuDomainObjPrivateXMLParse(xmlXPathContextPtr ctxt,
qemuDomainSetPrivatePathsOld(driver, vm);
if (virCPUDefParseXML(ctxt, "./cpu", VIR_CPU_TYPE_GUEST, &priv->origCPU) < 0)
if (virCPUDefParseXML(ctxt, "./cpu", VIR_CPU_TYPE_GUEST, &priv->origCPU,
false) < 0)
goto error;
priv->chardevStdioLogd = virXPathBoolean("boolean(./chardevStdioLogd)",
@ -9997,7 +9998,7 @@ qemuDomainSaveCookieParse(xmlXPathContextPtr ctxt G_GNUC_UNUSED,
return -1;
if (virCPUDefParseXML(ctxt, "./cpu[1]", VIR_CPU_TYPE_GUEST,
&cookie->cpu) < 0)
&cookie->cpu, false) < 0)
return -1;
cookie->slirpHelper = virXPathBoolean("boolean(./slirpHelper)", ctxt) > 0;

18
src/qemu/qemu_driver.c
View File

@ -12202,20 +12202,23 @@ qemuConnectCompareCPU(virConnectPtr conn,
virQEMUDriverPtr driver = conn->privateData;
g_autoptr(virCPUDef) cpu = NULL;
bool failIncompatible;
bool validateXML;
virCheckFlags(VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE,
virCheckFlags(VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE |
VIR_CONNECT_COMPARE_CPU_VALIDATE_XML,
VIR_CPU_COMPARE_ERROR);
if (virConnectCompareCPUEnsureACL(conn) < 0)
return VIR_CPU_COMPARE_ERROR;
failIncompatible = !!(flags & VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE);
validateXML = !!(flags & VIR_CONNECT_COMPARE_CPU_VALIDATE_XML);
if (!(cpu = virQEMUDriverGetHostCPU(driver)))
return VIR_CPU_COMPARE_ERROR;
return virCPUCompareXML(driver->hostarch, cpu,
xmlDesc, failIncompatible);
xmlDesc, failIncompatible, validateXML);
}
@ -12270,18 +12273,21 @@ qemuConnectCompareHypervisorCPU(virConnectPtr conn,
g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
g_autoptr(virQEMUCaps) qemuCaps = NULL;
bool failIncompatible;
bool validateXML;
virCPUDefPtr hvCPU;
virCPUDefPtr cpu = NULL;
virArch arch;
virDomainVirtType virttype;
virCheckFlags(VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE,
virCheckFlags(VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE |
VIR_CONNECT_COMPARE_CPU_VALIDATE_XML,
VIR_CPU_COMPARE_ERROR);
if (virConnectCompareHypervisorCPUEnsureACL(conn) < 0)
goto cleanup;
failIncompatible = !!(flags & VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE);
validateXML = !!(flags & VIR_CONNECT_COMPARE_CPU_VALIDATE_XML);
qemuCaps = virQEMUCapsCacheLookupDefault(driver->qemuCapsCache,
emulator,
@ -12305,10 +12311,12 @@ qemuConnectCompareHypervisorCPU(virConnectPtr conn,
}
if (ARCH_IS_X86(arch)) {
ret = virCPUCompareXML(arch, hvCPU, xmlCPU, failIncompatible);
ret = virCPUCompareXML(arch, hvCPU, xmlCPU, failIncompatible,
validateXML);
} else if (ARCH_IS_S390(arch) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QUERY_CPU_MODEL_COMPARISON)) {
if (virCPUDefParseXMLString(xmlCPU, VIR_CPU_TYPE_AUTO, &cpu) < 0)
if (virCPUDefParseXMLString(xmlCPU, VIR_CPU_TYPE_AUTO, &cpu,
validateXML) < 0)
goto cleanup;
if (!cpu->model) {

3
src/qemu/qemu_migration_cookie.c
View File

@ -1263,7 +1263,8 @@ qemuMigrationCookieXMLParse(qemuMigrationCookiePtr mig,
return -1;
if (flags & QEMU_MIGRATION_COOKIE_CPU &&
virCPUDefParseXML(ctxt, "./cpu[1]", VIR_CPU_TYPE_GUEST, &mig->cpu) < 0)
virCPUDefParseXML(ctxt, "./cpu[1]", VIR_CPU_TYPE_GUEST, &mig->cpu,
false) < 0)
return -1;
if (flags & QEMU_MIGRATION_COOKIE_ALLOW_REBOOT &&

5
tests/cputest.c
View File

@ -81,7 +81,7 @@ cpuTestLoadXML(virArch arch, const char *name)
if (!(doc = virXMLParseFileCtxt(xml, &ctxt)))
goto cleanup;
virCPUDefParseXML(ctxt, NULL, VIR_CPU_TYPE_AUTO, &cpu);
virCPUDefParseXML(ctxt, NULL, VIR_CPU_TYPE_AUTO, &cpu, false);
cleanup:
xmlXPathFreeContext(ctxt);
@ -120,7 +120,8 @@ cpuTestLoadMultiXML(virArch arch,
for (i = 0; i < n; i++) {
ctxt->node = nodes[i];
if (virCPUDefParseXML(ctxt, NULL, VIR_CPU_TYPE_HOST, &cpus[i]) < 0)
if (virCPUDefParseXML(ctxt, NULL, VIR_CPU_TYPE_HOST, &cpus[i],
false) < 0)
goto cleanup_cpus;
}