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linux countainers cleanup patches
* src/lxc_conf.c src/lxc_conf.h: cleanup patch for the conf driver of linux countainers, reuse XPath helpers, make string fields dynamic and remove a memory leak. * src/lxc_driver.c: avoid some problems when the config directory is not accessible and for regression tests Daniel
This commit is contained in:
parent
038b434f14
commit
497f252015
12
ChangeLog
12
ChangeLog
@ -1,3 +1,11 @@
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Mon Mar 31 13:58:25 CEST 2008 Daniel Veillard <veillard@redhat.com>
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* src/lxc_conf.c src/lxc_conf.h: cleanup patch for the conf driver
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of linux countainers, reuse XPath helpers, make string fields dynamic
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and remove a memory leak.
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* src/lxc_driver.c: avoid some problems when the config directory is
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not accessible and for regression tests
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Fri Mar 28 16:34:56 EDT 2008 Daniel P. Berrange <berrange@redhat.com>
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Fri Mar 28 16:34:56 EDT 2008 Daniel P. Berrange <berrange@redhat.com>
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* src/network.rng: Add new routed networking schema
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* src/network.rng: Add new routed networking schema
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@ -6,8 +14,8 @@ Fri Mar 28 16:34:56 EDT 2008 Daniel P. Berrange <berrange@redhat.com>
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* src/qemu_conf.h: Add attribute for routed networking
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* src/qemu_conf.h: Add attribute for routed networking
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* src/qemu_conf.c: Parse / format new networking attributes
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* src/qemu_conf.c: Parse / format new networking attributes
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* src/qemu_driver.c: Support routed networking config
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* src/qemu_driver.c: Support routed networking config
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(patches from Mads Chr. Olesen)
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(patches from Mads Chr. Olesen)
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Fri Mar 28 13:55:56 EDT 2008 Daniel P. Berrange <berrange@redhat.com>
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Fri Mar 28 13:55:56 EDT 2008 Daniel P. Berrange <berrange@redhat.com>
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* src/storage_conf.c: Fix XML output tag for FS storage pools
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* src/storage_conf.c: Fix XML output tag for FS storage pools
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196
src/lxc_conf.c
196
src/lxc_conf.c
@ -41,6 +41,7 @@
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#include "buf.h"
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#include "buf.h"
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#include "util.h"
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#include "util.h"
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#include "uuid.h"
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#include "uuid.h"
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#include "xml.h"
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#include "lxc_conf.h"
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#include "lxc_conf.h"
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@ -70,18 +71,6 @@ void lxcError(virConnectPtr conn, virDomainPtr dom, int code,
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codeErrorMessage, errorMessage);
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codeErrorMessage, errorMessage);
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}
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}
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static inline int lxcIsEmptyXPathStringObj(xmlXPathObjectPtr xpathObj)
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{
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if ((xpathObj == NULL) ||
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(xpathObj->type != XPATH_STRING) ||
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(xpathObj->stringval == NULL) ||
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(xpathObj->stringval[0] == 0)) {
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return 1;
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} else {
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return 0;
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}
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}
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static int lxcParseMountXML(virConnectPtr conn, xmlNodePtr nodePtr,
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static int lxcParseMountXML(virConnectPtr conn, xmlNodePtr nodePtr,
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lxc_mount_t *lxcMount)
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lxc_mount_t *lxcMount)
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{
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{
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@ -92,7 +81,8 @@ static int lxcParseMountXML(virConnectPtr conn, xmlNodePtr nodePtr,
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int strLen;
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int strLen;
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int rc = -1;
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int rc = -1;
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if (NULL == (fsType = xmlGetProp(nodePtr, BAD_CAST "type"))) {
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fsType = xmlGetProp(nodePtr, BAD_CAST "type");
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if (NULL == fsType) {
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lxcError(conn, NULL, VIR_ERR_INTERNAL_ERROR,
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lxcError(conn, NULL, VIR_ERR_INTERNAL_ERROR,
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_("missing filesystem type"));
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_("missing filesystem type"));
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goto error;
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goto error;
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@ -155,6 +145,7 @@ static int lxcParseMountXML(virConnectPtr conn, xmlNodePtr nodePtr,
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rc = 0;
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rc = 0;
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error:
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error:
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xmlFree(fsType);
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xmlFree(mountSource);
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xmlFree(mountSource);
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xmlFree(mountTarget);
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xmlFree(mountTarget);
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@ -164,55 +155,40 @@ error:
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static int lxcParseDomainName(virConnectPtr conn, char **name,
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static int lxcParseDomainName(virConnectPtr conn, char **name,
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xmlXPathContextPtr contextPtr)
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xmlXPathContextPtr contextPtr)
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{
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{
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int rc = -1;
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char *res;
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xmlXPathObjectPtr xpathObj = NULL;
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xpathObj = xmlXPathEval(BAD_CAST "string(/domain/name[1])", contextPtr);
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res = virXPathString("string(/domain/name[1])", contextPtr);
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if (lxcIsEmptyXPathStringObj(xpathObj)) {
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if (res == NULL) {
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lxcError(conn, NULL, VIR_ERR_NO_NAME, NULL);
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lxcError(conn, NULL, VIR_ERR_NO_NAME, NULL);
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goto parse_complete;
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return(-1);
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}
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}
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*name = strdup((const char *)xpathObj->stringval);
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*name = res;
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if (NULL == *name) {
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return(0);
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lxcError(conn, NULL, VIR_ERR_NO_MEMORY, NULL);
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goto parse_complete;
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}
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rc = 0;
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parse_complete:
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xmlXPathFreeObject(xpathObj);
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return rc;
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}
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}
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static int lxcParseDomainUUID(virConnectPtr conn, unsigned char *uuid,
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static int lxcParseDomainUUID(virConnectPtr conn, unsigned char *uuid,
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xmlXPathContextPtr contextPtr)
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xmlXPathContextPtr contextPtr)
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{
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{
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int rc = -1;
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char *res;
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xmlXPathObjectPtr xpathObj = NULL;
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xpathObj = xmlXPathEval(BAD_CAST "string(/domain/uuid[1])", contextPtr);
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res = virXPathString("string(/domain/uuid[1])", contextPtr);
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if (lxcIsEmptyXPathStringObj(xpathObj)) {
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if (res == NULL) {
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if ((rc = virUUIDGenerate(uuid))) {
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if (virUUIDGenerate(uuid)) {
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lxcError(conn, NULL, VIR_ERR_INTERNAL_ERROR,
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lxcError(conn, NULL, VIR_ERR_INTERNAL_ERROR,
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_("failed to generate uuid: %s"), strerror(rc));
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_("failed to generate uuid"));
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goto parse_complete;
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return(-1);
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}
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}
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} else {
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} else {
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if (virUUIDParse((const char *)xpathObj->stringval, uuid) < 0) {
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if (virUUIDParse(res, uuid) < 0) {
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lxcError(conn, NULL, VIR_ERR_INTERNAL_ERROR,
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lxcError(conn, NULL, VIR_ERR_INTERNAL_ERROR,
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_("invalid uuid element"));
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_("invalid uuid element"));
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goto parse_complete;
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free(res);
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return(-1);
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}
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}
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free(res);
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}
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}
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return(0);
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rc = 0;
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parse_complete:
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xmlXPathFreeObject(xpathObj);
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return rc;
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}
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}
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static int lxcParseDomainMounts(virConnectPtr conn,
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static int lxcParseDomainMounts(virConnectPtr conn,
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@ -220,27 +196,23 @@ static int lxcParseDomainMounts(virConnectPtr conn,
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xmlXPathContextPtr contextPtr)
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xmlXPathContextPtr contextPtr)
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{
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{
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int rc = -1;
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int rc = -1;
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xmlXPathObjectPtr xpathObj = NULL;
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int i;
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int i;
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lxc_mount_t *mountObj;
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lxc_mount_t *mountObj;
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lxc_mount_t *prevObj = NULL;
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lxc_mount_t *prevObj = NULL;
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int nmounts = 0;
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int nmounts = 0;
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xmlNodePtr *list;
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int res;
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xpathObj = xmlXPathEval(BAD_CAST "/domain/devices/filesystem",
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res = virXPathNodeSet("/domain/devices/filesystem", contextPtr, &list);
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contextPtr);
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if (res > 0) {
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if ((xpathObj != NULL) &&
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for (i = 0; i < res; ++i) {
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(xpathObj->type == XPATH_NODESET) &&
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(xpathObj->nodesetval != NULL) &&
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(xpathObj->nodesetval->nodeNr >= 0)) {
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for (i = 0; i < xpathObj->nodesetval->nodeNr; ++i) {
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mountObj = calloc(1, sizeof(lxc_mount_t));
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mountObj = calloc(1, sizeof(lxc_mount_t));
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if (NULL == mountObj) {
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if (NULL == mountObj) {
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lxcError(conn, NULL, VIR_ERR_NO_MEMORY, "mount");
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lxcError(conn, NULL, VIR_ERR_NO_MEMORY, "mount");
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goto parse_complete;
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goto parse_complete;
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}
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}
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rc = lxcParseMountXML(conn, xpathObj->nodesetval->nodeTab[i],
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rc = lxcParseMountXML(conn, list[i], mountObj);
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mountObj);
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if (0 > rc) {
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if (0 > rc) {
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free(mountObj);
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free(mountObj);
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goto parse_complete;
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goto parse_complete;
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@ -256,101 +228,76 @@ static int lxcParseDomainMounts(virConnectPtr conn,
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}
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}
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prevObj = mountObj;
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prevObj = mountObj;
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}
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}
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free(list);
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}
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}
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rc = nmounts;
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rc = nmounts;
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parse_complete:
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parse_complete:
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xmlXPathFreeObject(xpathObj);
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return rc;
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return rc;
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}
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}
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static int lxcParseDomainInit(virConnectPtr conn, char* init, xmlXPathContextPtr contextPtr)
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static int lxcParseDomainInit(virConnectPtr conn, char** init,
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xmlXPathContextPtr contextPtr)
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{
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{
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int rc = -1;
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char *res;
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xmlXPathObjectPtr xpathObj = NULL;
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xpathObj = xmlXPathEval(BAD_CAST "string(/domain/os/init[1])",
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res = virXPathString("string(/domain/os/init[1])", contextPtr);
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contextPtr);
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if (res == NULL) {
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if (lxcIsEmptyXPathStringObj(xpathObj)) {
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lxcError(conn, NULL, VIR_ERR_INTERNAL_ERROR,
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lxcError(conn, NULL, VIR_ERR_INTERNAL_ERROR,
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_("invalid or missing init element"));
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_("invalid or missing init element"));
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goto parse_complete;
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return(-1);
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}
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}
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if (strlen((const char*)xpathObj->stringval) >= PATH_MAX - 1) {
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if (strlen(res) >= PATH_MAX - 1) {
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lxcError(conn, NULL, VIR_ERR_INTERNAL_ERROR,
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lxcError(conn, NULL, VIR_ERR_INTERNAL_ERROR,
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_("init string too long"));
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_("init string too long"));
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goto parse_complete;
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free(res);
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return(-1);
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}
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}
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strcpy(init, (const char *)xpathObj->stringval);
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*init = res;
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rc = 0;
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return(0);
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parse_complete:
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xmlXPathFreeObject(xpathObj);
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return rc;
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}
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}
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static int lxcParseDomainTty(virConnectPtr conn, char *tty, xmlXPathContextPtr contextPtr)
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static int lxcParseDomainTty(virConnectPtr conn, char **tty, xmlXPathContextPtr contextPtr)
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{
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{
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int rc = -1;
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char *res;
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xmlXPathObjectPtr xpathObj = NULL;
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xpathObj = xmlXPathEval(BAD_CAST "string(/domain/devices/console[1]/@tty)",
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res = virXPathString("string(/domain/devices/console[1]/@tty)", contextPtr);
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contextPtr);
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if (res == NULL) {
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if (lxcIsEmptyXPathStringObj(xpathObj)) {
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/* make sure the tty string is empty */
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/* make sure the tty string is empty */
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tty[0] = 0x00;
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*tty = strdup("");
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if (*tty == NULL) {
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lxcError(conn, NULL, VIR_ERR_NO_MEMORY, NULL);
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return(-1);
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}
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} else {
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} else {
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/* check the source string length */
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*tty = res;
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if (strlen((const char*)xpathObj->stringval) >= LXC_MAX_TTY_NAME - 1) {
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lxcError(conn, NULL, VIR_ERR_INTERNAL_ERROR,
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_("tty name is too long"));
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goto parse_complete;
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}
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strcpy(tty, (const char *)xpathObj->stringval);
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}
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}
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rc = 0;
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return(0);
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parse_complete:
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xmlXPathFreeObject(xpathObj);
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return rc;
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}
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}
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static int lxcParseDomainMemory(virConnectPtr conn, int* memory, xmlXPathContextPtr contextPtr)
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static int lxcParseDomainMemory(virConnectPtr conn, int* memory, xmlXPathContextPtr contextPtr)
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{
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{
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int rc = -1;
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long res;
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xmlXPathObjectPtr xpathObj = NULL;
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int rc;
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char *endChar = NULL;
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|
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|
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xpathObj = xmlXPathEval(BAD_CAST "string(/domain/memory[1])", contextPtr);
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rc = virXPathLong("string(/domain/memory[1])", contextPtr, &res);
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if (lxcIsEmptyXPathStringObj(xpathObj)) {
|
if ((rc == -2) || ((rc == 0) && (res <= 0))) {
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|
*memory = -1;
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lxcError(conn, NULL, VIR_ERR_INTERNAL_ERROR,
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|
_("invalid memory value"));
|
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|
} else if (rc < 0) {
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/* not an error, default to an invalid value so it's not used */
|
/* not an error, default to an invalid value so it's not used */
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*memory = -1;
|
*memory = -1;
|
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} else {
|
} else {
|
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*memory = strtoll((const char*)xpathObj->stringval,
|
*memory = (int) res;
|
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&endChar, 10);
|
|
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if ((endChar == (const char*)xpathObj->stringval) ||
|
|
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(*endChar != '\0')) {
|
|
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lxcError(conn, NULL, VIR_ERR_INTERNAL_ERROR,
|
|
||||||
_("invalid memory value"));
|
|
||||||
goto parse_complete;
|
|
||||||
}
|
|
||||||
}
|
}
|
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|
return(0);
|
||||||
rc = 0;
|
|
||||||
|
|
||||||
parse_complete:
|
|
||||||
xmlXPathFreeObject(xpathObj);
|
|
||||||
|
|
||||||
return rc;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
static lxc_vm_def_t * lxcParseXML(virConnectPtr conn, xmlDocPtr docPtr)
|
static lxc_vm_def_t * lxcParseXML(virConnectPtr conn, xmlDocPtr docPtr)
|
||||||
@ -411,7 +358,7 @@ static lxc_vm_def_t * lxcParseXML(virConnectPtr conn, xmlDocPtr docPtr)
|
|||||||
goto error;
|
goto error;
|
||||||
}
|
}
|
||||||
|
|
||||||
if (lxcParseDomainInit(conn, containerDef->init, contextPtr) < 0) {
|
if (lxcParseDomainInit(conn, &(containerDef->init), contextPtr) < 0) {
|
||||||
goto error;
|
goto error;
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -425,7 +372,7 @@ static lxc_vm_def_t * lxcParseXML(virConnectPtr conn, xmlDocPtr docPtr)
|
|||||||
goto error;
|
goto error;
|
||||||
}
|
}
|
||||||
|
|
||||||
if (lxcParseDomainTty(conn, containerDef->tty, contextPtr) < 0) {
|
if (lxcParseDomainTty(conn, &(containerDef->tty), contextPtr) < 0) {
|
||||||
goto error;
|
goto error;
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -708,7 +655,8 @@ int lxcLoadContainerInfo(lxc_driver_t *driver)
|
|||||||
rc = 0;
|
rc = 0;
|
||||||
} else {
|
} else {
|
||||||
lxcError(NULL, NULL, VIR_ERR_INTERNAL_ERROR,
|
lxcError(NULL, NULL, VIR_ERR_INTERNAL_ERROR,
|
||||||
_("failed to open config directory: %s"), strerror(errno));
|
_("failed to open config directory %s: %s"),
|
||||||
|
driver->configDir, strerror(errno));
|
||||||
}
|
}
|
||||||
|
|
||||||
goto load_complete;
|
goto load_complete;
|
||||||
@ -837,9 +785,13 @@ no_memory:
|
|||||||
|
|
||||||
void lxcFreeVMDef(lxc_vm_def_t *vmdef)
|
void lxcFreeVMDef(lxc_vm_def_t *vmdef)
|
||||||
{
|
{
|
||||||
lxc_mount_t *curMount = vmdef->mounts;
|
lxc_mount_t *curMount;
|
||||||
lxc_mount_t *nextMount;
|
lxc_mount_t *nextMount;
|
||||||
|
|
||||||
|
if (vmdef == NULL)
|
||||||
|
return;
|
||||||
|
|
||||||
|
curMount = vmdef->mounts;
|
||||||
while (curMount) {
|
while (curMount) {
|
||||||
nextMount = curMount->next;
|
nextMount = curMount->next;
|
||||||
free(curMount);
|
free(curMount);
|
||||||
@ -847,8 +799,9 @@ void lxcFreeVMDef(lxc_vm_def_t *vmdef)
|
|||||||
}
|
}
|
||||||
|
|
||||||
free(vmdef->name);
|
free(vmdef->name);
|
||||||
vmdef->name = NULL;
|
free(vmdef->init);
|
||||||
|
free(vmdef->tty);
|
||||||
|
free(vmdef);
|
||||||
}
|
}
|
||||||
|
|
||||||
void lxcFreeVMs(lxc_vm_t *vms)
|
void lxcFreeVMs(lxc_vm_t *vms)
|
||||||
@ -859,7 +812,6 @@ void lxcFreeVMs(lxc_vm_t *vms)
|
|||||||
while (curVm) {
|
while (curVm) {
|
||||||
lxcFreeVM(curVm);
|
lxcFreeVM(curVm);
|
||||||
nextVm = curVm->next;
|
nextVm = curVm->next;
|
||||||
free(curVm);
|
|
||||||
curVm = nextVm;
|
curVm = nextVm;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
@ -867,7 +819,7 @@ void lxcFreeVMs(lxc_vm_t *vms)
|
|||||||
void lxcFreeVM(lxc_vm_t *vm)
|
void lxcFreeVM(lxc_vm_t *vm)
|
||||||
{
|
{
|
||||||
lxcFreeVMDef(vm->def);
|
lxcFreeVMDef(vm->def);
|
||||||
free(vm->def);
|
free(vm);
|
||||||
}
|
}
|
||||||
|
|
||||||
lxc_vm_t *lxcFindVMByID(const lxc_driver_t *driver, int id)
|
lxc_vm_t *lxcFindVMByID(const lxc_driver_t *driver, int id)
|
||||||
|
@ -51,7 +51,7 @@ struct __lxc_vm_def {
|
|||||||
int id;
|
int id;
|
||||||
|
|
||||||
/* init command string */
|
/* init command string */
|
||||||
char init[PATH_MAX];
|
char *init;
|
||||||
|
|
||||||
int maxMemory;
|
int maxMemory;
|
||||||
|
|
||||||
@ -60,7 +60,7 @@ struct __lxc_vm_def {
|
|||||||
lxc_mount_t *mounts;
|
lxc_mount_t *mounts;
|
||||||
|
|
||||||
/* tty device */
|
/* tty device */
|
||||||
char tty[LXC_MAX_TTY_NAME];
|
char *tty;
|
||||||
};
|
};
|
||||||
|
|
||||||
typedef struct __lxc_vm lxc_vm_t;
|
typedef struct __lxc_vm lxc_vm_t;
|
||||||
|
@ -61,7 +61,7 @@
|
|||||||
|
|
||||||
static int lxcStartup(void);
|
static int lxcStartup(void);
|
||||||
static int lxcShutdown(void);
|
static int lxcShutdown(void);
|
||||||
static lxc_driver_t *lxc_driver;
|
static lxc_driver_t *lxc_driver = NULL;
|
||||||
|
|
||||||
/* Functions */
|
/* Functions */
|
||||||
static int lxcDummyChild( void *argv ATTRIBUTE_UNUSED )
|
static int lxcDummyChild( void *argv ATTRIBUTE_UNUSED )
|
||||||
@ -378,6 +378,13 @@ static char *lxcDomainDumpXML(virDomainPtr dom,
|
|||||||
|
|
||||||
static int lxcStartup(void)
|
static int lxcStartup(void)
|
||||||
{
|
{
|
||||||
|
uid_t uid = getuid();
|
||||||
|
|
||||||
|
/* Check that the user is root */
|
||||||
|
if (0 != uid) {
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
lxc_driver = calloc(1, sizeof(lxc_driver_t));
|
lxc_driver = calloc(1, sizeof(lxc_driver_t));
|
||||||
if (NULL == lxc_driver) {
|
if (NULL == lxc_driver) {
|
||||||
return -1;
|
return -1;
|
||||||
@ -412,11 +419,12 @@ static void lxcFreeDriver(lxc_driver_t *driver)
|
|||||||
|
|
||||||
static int lxcShutdown(void)
|
static int lxcShutdown(void)
|
||||||
{
|
{
|
||||||
lxc_vm_t *vms = lxc_driver->vms;
|
if (lxc_driver == NULL)
|
||||||
|
return(NULL);
|
||||||
lxcFreeVMs(vms);
|
lxcFreeVMs(lxc_driver->vms);
|
||||||
lxc_driver->vms = NULL;
|
lxc_driver->vms = NULL;
|
||||||
lxcFreeDriver(lxc_driver);
|
lxcFreeDriver(lxc_driver);
|
||||||
|
lxc_driver = NULL;
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
@ -430,6 +438,8 @@ static int lxcShutdown(void)
|
|||||||
*/
|
*/
|
||||||
static int
|
static int
|
||||||
lxcActive(void) {
|
lxcActive(void) {
|
||||||
|
if (lxc_driver == NULL)
|
||||||
|
return(0);
|
||||||
/* If we've any active networks or guests, then we
|
/* If we've any active networks or guests, then we
|
||||||
* mark this driver as active
|
* mark this driver as active
|
||||||
*/
|
*/
|
||||||
|
Loading…
Reference in New Issue
Block a user