---
src/driver.h | 8 ++-
src/qemu/qemu_conf.c | 33 ++++++++
src/qemu/qemu_conf.h | 1 +
src/qemu/qemu_driver.c | 196 ++++++++++++++++++++++++++++++++++++++---------
src/qemu/qemu_process.c | 53 +++++++++----
5 files changed, 236 insertions(+), 55 deletions(-)
diff --git a/src/driver.h b/src/driver.h
index 03d249b..ca4927f 100644
--- a/src/driver.h
+++ b/src/driver.h
@@ -305,11 +305,14 @@ typedef int
int maplen);
typedef int
(*virDrvDomainGetMaxVcpus) (virDomainPtr domain);
-
typedef int
- (*virDrvDomainGetSecurityLabel) (virDomainPtr domain,
+ (*virDrvDomainGetSecurityLabel) (virDomainPtr domain,
virSecurityLabelPtr seclabel);
typedef int
+ (*virDrvDomainGetSecurityLabelList) (virDomainPtr domain,
+ virSecurityLabelPtr seclabels,
+ int nseclabels);
+typedef int
(*virDrvNodeGetSecurityModel) (virConnectPtr conn,
virSecurityModelPtr secmodel);
typedef int
@@ -911,6 +914,7 @@ struct _virDriver {
virDrvDomainGetVcpus domainGetVcpus;
virDrvDomainGetMaxVcpus domainGetMaxVcpus;
virDrvDomainGetSecurityLabel domainGetSecurityLabel;
+ virDrvDomainGetSecurityLabelList domainGetSecurityLabelList;
virDrvNodeGetSecurityModel nodeGetSecurityModel;
virDrvDomainGetXMLDesc domainGetXMLDesc;
virDrvConnectDomainXMLFromNative domainXMLFromNative;
diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index 88a04bc..5cc2071 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -202,6 +202,39 @@ int qemudLoadDriverConfig(struct qemud_driver *driver,
}
}
+ p = virConfGetValue (conf, "additional_security_drivers");
+ CHECK_TYPE ("additional_security_driver", VIR_CONF_STRING);
+ if (p && p->str) {
+ char *it, *tok;
+ size_t len;
+
+ for (len = 1, it = p->str; *it; it++)
+ len++;
+ if (VIR_ALLOC_N(driver->additionalSecurityDriverNames, len + 1) < 0) {
+ virReportOOMError();
+ virConfFree(conf);
+ return -1;
+ }
+
+ i = 0;
+ tok = it = p->str;
+ while (1) {
+ if (*it == ',' || *it == '\0') {
+ driver->additionalSecurityDriverNames[i] = strndup(tok, it -
tok);
+ if (driver->additionalSecurityDriverNames == NULL) {
+ virReportOOMError();
+ virConfFree(conf);
+ return -1;
+ }
+ tok = it + 1;
+ i++;
+ }
+ if (*it == '\0')
+ break;
+ it++;
+ }
+ }
+
p = virConfGetValue (conf, "security_default_confined");
CHECK_TYPE ("security_default_confined", VIR_CONF_LONG);
if (p) driver->securityDefaultConfined = p->l;
diff --git a/src/qemu/qemu_conf.h b/src/qemu/qemu_conf.h
index 482e6d3..a5867b6 100644
--- a/src/qemu/qemu_conf.h
+++ b/src/qemu/qemu_conf.h
@@ -117,6 +117,7 @@ struct qemud_driver {
virDomainEventStatePtr domainEventState;
char *securityDriverName;
+ char **additionalSecurityDriverNames;
bool securityDefaultConfined;
bool securityRequireConfined;
virSecurityManagerPtr securityManager;
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index efbc421..39d9eee 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -214,36 +214,84 @@ qemuAutostartDomains(struct qemud_driver *driver)
static int
qemuSecurityInit(struct qemud_driver *driver)
{
- virSecurityManagerPtr mgr =
virSecurityManagerNew(driver->securityDriverName,
- QEMU_DRIVER_NAME,
-
driver->allowDiskFormatProbing,
-
driver->securityDefaultConfined,
-
driver->securityRequireConfined);
-
+ char **names;
+ virSecurityManagerPtr mgr, nested, stack;
+
+ /* Create primary driver */
+ mgr = virSecurityManagerNew(driver->securityDriverName,
+ QEMU_DRIVER_NAME,
+ driver->allowDiskFormatProbing,
+ driver->securityDefaultConfined,
+ driver->securityRequireConfined);
if (!mgr)
goto error;
- if (driver->privileged) {
- virSecurityManagerPtr dac = virSecurityManagerNewDAC(QEMU_DRIVER_NAME,
- driver->user,
- driver->group,
-
driver->allowDiskFormatProbing,
-
driver->securityDefaultConfined,
-
driver->securityRequireConfined,
-
driver->dynamicOwnership);
- if (!dac)
+ /* If a DAC driver is required or additional drivers are provived, a stack
+ * driver should be create to group them all */
+ if (driver->privileged || driver->additionalSecurityDriverNames) {
+ stack = virSecurityManagerNewStack(mgr);
+ if (!stack)
goto error;
+ mgr = stack;
+ }
+
+ /* Loop through additional driver names and add a secudary driver to each
+ * one */
+ if (driver->additionalSecurityDriverNames) {
+ names = driver->additionalSecurityDriverNames;
+ while (names && *names) {
+ if (STREQ("dac", *names)) {
+ /* A DAC driver has specic parameters */
+ nested = virSecurityManagerNewDAC(QEMU_DRIVER_NAME,
+ driver->user,
+ driver->group,
+
driver->allowDiskFormatProbing,
+
driver->securityDefaultConfined,
+
driver->securityRequireConfined,
+ driver->dynamicOwnership);
+ } else {
+ nested = virSecurityManagerNew(*names,
+ QEMU_DRIVER_NAME,
+ driver->allowDiskFormatProbing,
+ driver->securityDefaultConfined,
+
driver->securityRequireConfined);
+ }
+ if (nested == NULL)
+ goto error;
+ if (virSecurityManagerStackAddNested(stack, nested))
+ goto error;
+ names++;
+ }
+ }
- if (!(driver->securityManager = virSecurityManagerNewStack(mgr,
- dac))) {
-
- virSecurityManagerFree(dac);
- goto error;
+ if (driver->privileged) {
+ /* When a DAC driver is required, check if there is already one in the
+ * additional drivers */
+ names = driver->additionalSecurityDriverNames;
+ while (names && *names) {
+ if (STREQ("dac", *names)) {
+ break;
+ }
+ names++;
+ }
+ /* If there isn't a DAC driver, create a new one and add it to the
stack
+ * manager */
+ if (names == NULL || *names == NULL) {
+ nested = virSecurityManagerNewDAC(QEMU_DRIVER_NAME,
+ driver->user,
+ driver->group,
+ driver->allowDiskFormatProbing,
+ driver->securityDefaultConfined,
+ driver->securityRequireConfined,
+ driver->dynamicOwnership);
+ if (nested == NULL)
+ goto error;
+ if (virSecurityManagerStackAddNested(stack, nested))
+ goto error;
}
- } else {
- driver->securityManager = mgr;
}
+ driver->securityManager = mgr;
return 0;
error:
@@ -257,7 +305,11 @@ static virCapsPtr
qemuCreateCapabilities(virCapsPtr oldcaps,
struct qemud_driver *driver)
{
+ size_t i;
virCapsPtr caps;
+ virSecurityManagerPtr *sec_managers = NULL;
+ /* Security driver data */
+ const char *doi, *model;
/* Basic host arch / guest machine capabilities */
if (!(caps = qemuCapsInit(oldcaps))) {
@@ -282,26 +334,38 @@ qemuCreateCapabilities(virCapsPtr oldcaps,
goto err_exit;
}
- /* Security driver data */
- const char *doi, *model;
+ /* access sec drivers and create a sec model to each one */
+ sec_managers = virSecurityManagerGetNested(driver->securityManager);
+ if (sec_managers == NULL) {
+ goto err_exit;
+ }
+
+ /* calculate length */
+ for (i = 0; sec_managers[i]; i++)
+ ;
+ caps->host.nsecModels = i;
- doi = virSecurityManagerGetDOI(driver->securityManager);
- model = virSecurityManagerGetModel(driver->securityManager);
- if (STRNEQ(model, "none")) {
- if (!(caps->host.secModel.model = strdup(model)))
+ if (VIR_ALLOC_N(caps->host.secModels, caps->host.nsecModels) < 0)
+ goto no_memory;
+
+ for (i = 0; sec_managers[i]; i++) {
+ doi = virSecurityManagerGetDOI(sec_managers[i]);
+ model = virSecurityManagerGetModel(sec_managers[i]);
+ if (!(caps->host.secModels[i].model = strdup(model)))
goto no_memory;
- if (!(caps->host.secModel.doi = strdup(doi)))
+ if (!(caps->host.secModels[i].doi = strdup(doi)))
goto no_memory;
+ VIR_DEBUG("Initialized caps for security driver \"%s\" with "
+ "DOI \"%s\"", model, doi);
}
-
- VIR_DEBUG("Initialized caps for security driver \"%s\" with "
- "DOI \"%s\"", model, doi);
+ VIR_FREE(sec_managers);
return caps;
no_memory:
virReportOOMError();
err_exit:
+ VIR_FREE(sec_managers);
virCapabilitiesFree(caps);
return NULL;
}
@@ -3958,6 +4022,63 @@ cleanup:
return ret;
}
+static int qemudDomainGetSecurityLabelList(virDomainPtr dom,
+ virSecurityLabelPtr seclabel,
+ int nseclabels)
+{
+ struct qemud_driver *driver = (struct qemud_driver
*)dom->conn->privateData;
+ virDomainObjPtr vm;
+ int i, ret = -1;
+
+ qemuDriverLock(driver);
+ vm = virDomainFindByUUID(&driver->domains, dom->uuid);
+
+ memset(seclabel, 0, sizeof(*seclabel));
+
+ if (!vm) {
+ char uuidstr[VIR_UUID_STRING_BUFLEN];
+ virUUIDFormat(dom->uuid, uuidstr);
+ qemuReportError(VIR_ERR_NO_DOMAIN,
+ _("no domain with matching uuid '%s'"), uuidstr);
+ goto cleanup;
+ }
+
+ if (!virDomainVirtTypeToString(vm->def->virtType)) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR,
+ _("unknown virt type in domain definition '%d'"),
+ vm->def->virtType);
+ goto cleanup;
+ }
+
+ /*
+ * Check the comment in qemudDomainGetSecurityLabel function.
+ */
+ if (virDomainObjIsActive(vm)) {
+ virSecurityManagerPtr* mgrs = virSecurityManagerGetNested(
+ driver->securityManager);
+ if (!mgrs)
+ goto cleanup;
+
+ for (i = 0; mgrs[i] && i < nseclabels; i++) {
+ if (virSecurityManagerGetProcessLabel(mgrs[i], vm->def, vm->pid,
+ seclabel) < 0) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR,
+ "%s", _("Failed to get security label"));
+ VIR_FREE(mgrs);
+ goto cleanup;
+ }
+ }
+ VIR_FREE(mgrs);
+ }
+
+ ret = 0;
+
+cleanup:
+ if (vm)
+ virDomainObjUnlock(vm);
+ qemuDriverUnlock(driver);
+ return ret;
+}
static int qemudNodeGetSecurityModel(virConnectPtr conn,
virSecurityModelPtr secmodel)
{
@@ -3968,12 +4089,12 @@ static int qemudNodeGetSecurityModel(virConnectPtr conn,
qemuDriverLock(driver);
memset(secmodel, 0, sizeof(*secmodel));
- /* NULL indicates no driver, which we treat as
- * success, but simply return no data in *secmodel */
- if (driver->caps->host.secModel.model == NULL)
+ /* We treat no driver as success, but simply return no data in *secmodel */
+ if (driver->caps->host.nsecModels == 0 ||
+ driver->caps->host.secModels[0].model == NULL)
goto cleanup;
- p = driver->caps->host.secModel.model;
+ p = driver->caps->host.secModels[0].model;
if (strlen(p) >= VIR_SECURITY_MODEL_BUFLEN-1) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("security model string exceeds max %d bytes"),
@@ -3983,7 +4104,7 @@ static int qemudNodeGetSecurityModel(virConnectPtr conn,
}
strcpy(secmodel->model, p);
- p = driver->caps->host.secModel.doi;
+ p = driver->caps->host.secModels[0].doi;
if (strlen(p) >= VIR_SECURITY_DOI_BUFLEN-1) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("security DOI string exceeds max %d bytes"),
@@ -13004,6 +13125,7 @@ static virDriver qemuDriver = {
.domainGetVcpus = qemudDomainGetVcpus, /* 0.4.4 */
.domainGetMaxVcpus = qemudDomainGetMaxVcpus, /* 0.4.4 */
.domainGetSecurityLabel = qemudDomainGetSecurityLabel, /* 0.6.1 */
+ .domainGetSecurityLabelList = qemudDomainGetSecurityLabelList, /* ? */
.nodeGetSecurityModel = qemudNodeGetSecurityModel, /* 0.6.1 */
.domainGetXMLDesc = qemuDomainGetXMLDesc, /* 0.2.0 */
.domainXMLFromNative = qemuDomainXMLFromNative, /* 0.6.4 */
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 58ba5bf..59c7e0d 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -3979,12 +3979,12 @@ void qemuProcessStop(struct qemud_driver *driver,
virSecurityManagerReleaseLabel(driver->securityManager, vm->def);
/* Clear out dynamically assigned labels */
- if (vm->def->seclabel.type == VIR_DOMAIN_SECLABEL_DYNAMIC) {
- if (!vm->def->seclabel.baselabel)
- VIR_FREE(vm->def->seclabel.model);
- VIR_FREE(vm->def->seclabel.label);
+ for (i = 0; i < vm->def->nseclabels; i++) {
+ if (vm->def->seclabels[i]->type == VIR_DOMAIN_SECLABEL_DYNAMIC) {
+ VIR_FREE(vm->def->seclabels[i]->label);
+ }
+ VIR_FREE(vm->def->seclabels[i]->imagelabel);
}
- VIR_FREE(vm->def->seclabel.imagelabel);
virDomainDefClearDeviceAliases(vm->def);
if (!priv->persistentAddrs) {
@@ -4088,6 +4088,7 @@ int qemuProcessAttach(virConnectPtr conn ATTRIBUTE_UNUSED,
virDomainChrSourceDefPtr monConfig,
bool monJSON)
{
+ size_t i;
char ebuf[1024];
int logfile = -1;
char *timestamp;
@@ -4095,6 +4096,9 @@ int qemuProcessAttach(virConnectPtr conn ATTRIBUTE_UNUSED,
bool running = true;
virDomainPausedReason reason;
virSecurityLabelPtr seclabel = NULL;
+ virSecurityLabelDefPtr seclabeldef = NULL;
+ virSecurityManagerPtr* sec_managers;
+ const char *model;
VIR_DEBUG("Beginning VM attach process");
@@ -4127,17 +4131,35 @@ int qemuProcessAttach(virConnectPtr conn
ATTRIBUTE_UNUSED,
goto no_memory;
VIR_DEBUG("Detect security driver config");
- vm->def->seclabel.type = VIR_DOMAIN_SECLABEL_STATIC;
- if (VIR_ALLOC(seclabel) < 0)
- goto no_memory;
- if (virSecurityManagerGetProcessLabel(driver->securityManager,
- vm->def, vm->pid, seclabel) < 0)
+ sec_managers = virSecurityManagerGetNested(driver->securityManager);
+ if (sec_managers == NULL) {
goto cleanup;
- if (driver->caps->host.secModel.model &&
- !(vm->def->seclabel.model = strdup(driver->caps->host.secModel.model)))
- goto no_memory;
- if (!(vm->def->seclabel.label = strdup(seclabel->label)))
- goto no_memory;
+ }
+
+ for (i = 0; sec_managers[i]; i++) {
+ model = virSecurityManagerGetModel(sec_managers[i]);
+ seclabeldef = virDomainDefGetSecurityLabelDef(vm->def, model);
+ if (seclabeldef == NULL) {
+ goto cleanup;
+ }
+ seclabeldef->type = VIR_DOMAIN_SECLABEL_STATIC;
+ if (VIR_ALLOC(seclabel) < 0)
+ goto no_memory;
+ if (virSecurityManagerGetProcessLabel(driver->securityManager,
+ vm->def, vm->pid, seclabel) < 0)
+ goto cleanup;
+
+ //if (driver->caps->host.secModel.model &&
+ // !(seclabeldef.model = strdup(driver->caps->host.secModel.model)))
+ // goto no_memory;
+ if (!(seclabeldef->model = strdup(model)))
+ goto no_memory;
+
+ if (!(seclabeldef->label = strdup(seclabel->label)))
+ goto no_memory;
+ VIR_FREE(seclabel);
+ seclabel = NULL;
+ }
VIR_DEBUG("Creating domain log file");
if ((logfile = qemuDomainCreateLog(driver, vm, false)) < 0)
@@ -4256,7 +4278,6 @@ int qemuProcessAttach(virConnectPtr conn ATTRIBUTE_UNUSED,
goto cleanup;
VIR_FORCE_CLOSE(logfile);
- VIR_FREE(seclabel);
return 0;
--
1.7.1
--
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