mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-11-02 03:11:12 +00:00
34639a3f6b
Use capabilities to allow a driver to register a default <init> if none is specified in the XML. Openvz was already open-coding this to be /sbin/init LXC currently falls over if no init is specified, so an explicit error is an improvement IMO. (Side note: I don't think we can set a default value for LXC. If we use /sbin/init but the user doesn't specify a separate root FS for their guest, the container will rerun the host's init which can be traumatic :). For virt-install I'm thinking of defaulting to /sbin/init if a root FS has been specified, otherwise require the user to manually specify <init>)
1664 lines
46 KiB
C
1664 lines
46 KiB
C
/*
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* openvz_driver.c: core driver methods for managing OpenVZ VEs
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*
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* Copyright (C) 2010-2011 Red Hat, Inc.
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* Copyright (C) 2006, 2007 Binary Karma
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* Copyright (C) 2006 Shuveb Hussain
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* Copyright (C) 2007 Anoop Joe Cyriac
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Authors:
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* Shuveb Hussain <shuveb@binarykarma.com>
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* Anoop Joe Cyriac <anoop@binarykarma.com>
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*
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*/
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#include <config.h>
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|
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#include <sys/types.h>
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#include <sys/poll.h>
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#include <dirent.h>
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#include <limits.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/utsname.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <paths.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <sys/wait.h>
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#include "virterror_internal.h"
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#include "datatypes.h"
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#include "openvz_driver.h"
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#include "event.h"
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#include "buf.h"
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#include "util.h"
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#include "openvz_conf.h"
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#include "nodeinfo.h"
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#include "memory.h"
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#include "bridge.h"
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#include "files.h"
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#include "logging.h"
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#define VIR_FROM_THIS VIR_FROM_OPENVZ
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#define OPENVZ_MAX_ARG 28
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#define CMDBUF_LEN 1488
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#define CMDOP_LEN 288
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static int openvzGetProcessInfo(unsigned long long *cpuTime, int vpsid);
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static int openvzGetMaxVCPUs(virConnectPtr conn, const char *type);
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static int openvzDomainGetMaxVcpus(virDomainPtr dom);
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static int openvzDomainSetVcpusInternal(virDomainObjPtr vm,
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unsigned int nvcpus);
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static int openvzDomainSetMemoryInternal(virDomainObjPtr vm,
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unsigned long memory);
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static void openvzDriverLock(struct openvz_driver *driver)
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{
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virMutexLock(&driver->lock);
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}
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static void openvzDriverUnlock(struct openvz_driver *driver)
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{
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virMutexUnlock(&driver->lock);
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}
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struct openvz_driver ovz_driver;
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static void cmdExecFree(const char *cmdExec[])
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{
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int i=-1;
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while (cmdExec[++i]) {
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VIR_FREE(cmdExec[i]);
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}
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}
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/* generate arguments to create OpenVZ container
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return -1 - error
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0 - OK
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*/
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static int
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openvzDomainDefineCmd(const char *args[],
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int maxarg, virDomainDefPtr vmdef)
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{
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int narg;
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for (narg = 0; narg < maxarg; narg++)
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args[narg] = NULL;
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if (vmdef == NULL) {
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openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("Container is not defined"));
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return -1;
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}
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#define ADD_ARG(thisarg) \
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do { \
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if (narg >= maxarg) \
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goto no_memory; \
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args[narg++] = thisarg; \
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} while (0)
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#define ADD_ARG_LIT(thisarg) \
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do { \
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if (narg >= maxarg) \
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goto no_memory; \
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if ((args[narg++] = strdup(thisarg)) == NULL) \
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goto no_memory; \
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} while (0)
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narg = 0;
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ADD_ARG_LIT(VZCTL);
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ADD_ARG_LIT("--quiet");
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ADD_ARG_LIT("create");
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ADD_ARG_LIT(vmdef->name);
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ADD_ARG_LIT("--name");
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ADD_ARG_LIT(vmdef->name);
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if (vmdef->nfss == 1 &&
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vmdef->fss[0]->type == VIR_DOMAIN_FS_TYPE_TEMPLATE) {
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ADD_ARG_LIT("--ostemplate");
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ADD_ARG_LIT(vmdef->fss[0]->src);
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}
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#if 0
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if ((vmdef->profile && *(vmdef->profile))) {
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ADD_ARG_LIT("--config");
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ADD_ARG_LIT(vmdef->profile);
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}
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#endif
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ADD_ARG(NULL);
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return 0;
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no_memory:
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openvzError(VIR_ERR_INTERNAL_ERROR,
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_("Could not put argument to %s"), VZCTL);
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return -1;
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#undef ADD_ARG
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#undef ADD_ARG_LIT
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}
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static int openvzSetInitialConfig(virDomainDefPtr vmdef)
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{
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int ret = -1;
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int vpsid;
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char * confdir = NULL;
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const char *prog[OPENVZ_MAX_ARG];
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prog[0] = NULL;
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if (vmdef->nfss > 1) {
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openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("only one filesystem supported"));
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goto cleanup;
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}
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if (vmdef->nfss == 1 &&
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vmdef->fss[0]->type != VIR_DOMAIN_FS_TYPE_TEMPLATE &&
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vmdef->fss[0]->type != VIR_DOMAIN_FS_TYPE_MOUNT)
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{
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openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("filesystem is not of type 'template' or 'mount'"));
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goto cleanup;
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}
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if (vmdef->nfss == 1 &&
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vmdef->fss[0]->type == VIR_DOMAIN_FS_TYPE_MOUNT)
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{
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if (virStrToLong_i(vmdef->name, NULL, 10, &vpsid) < 0) {
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openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("Could not convert domain name to VEID"));
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goto cleanup;
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}
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if (openvzCopyDefaultConfig(vpsid) < 0) {
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openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("Could not copy default config"));
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goto cleanup;
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}
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if (openvzWriteVPSConfigParam(vpsid, "VE_PRIVATE", vmdef->fss[0]->src) < 0) {
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openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("Could not set the source dir for the filesystem"));
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goto cleanup;
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}
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}
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else
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{
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if (openvzDomainDefineCmd(prog, OPENVZ_MAX_ARG, vmdef) < 0) {
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VIR_ERROR(_("Error creating command for container"));
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goto cleanup;
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}
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if (virRun(prog, NULL) < 0) {
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goto cleanup;
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}
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}
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ret = 0;
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cleanup:
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VIR_FREE(confdir);
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cmdExecFree(prog);
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return ret;
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}
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static virDomainPtr openvzDomainLookupByID(virConnectPtr conn,
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int id) {
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struct openvz_driver *driver = conn->privateData;
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virDomainObjPtr vm;
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virDomainPtr dom = NULL;
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openvzDriverLock(driver);
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vm = virDomainFindByID(&driver->domains, id);
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openvzDriverUnlock(driver);
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if (!vm) {
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openvzError(VIR_ERR_NO_DOMAIN, NULL);
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goto cleanup;
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}
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dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
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if (dom)
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dom->id = vm->def->id;
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cleanup:
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if (vm)
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virDomainObjUnlock(vm);
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return dom;
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}
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static int openvzGetVersion(virConnectPtr conn, unsigned long *version) {
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struct openvz_driver *driver = conn->privateData;
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openvzDriverLock(driver);
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*version = driver->version;
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openvzDriverUnlock(driver);
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return 0;
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}
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static char *openvzGetOSType(virDomainPtr dom)
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{
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struct openvz_driver *driver = dom->conn->privateData;
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virDomainObjPtr vm;
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char *ret = NULL;
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openvzDriverLock(driver);
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vm = virDomainFindByUUID(&driver->domains, dom->uuid);
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openvzDriverUnlock(driver);
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if (!vm) {
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openvzError(VIR_ERR_NO_DOMAIN, NULL);
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goto cleanup;
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}
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if (!(ret = strdup(vm->def->os.type)))
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virReportOOMError();
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cleanup:
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if (vm)
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virDomainObjUnlock(vm);
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return ret;
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}
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static virDomainPtr openvzDomainLookupByUUID(virConnectPtr conn,
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const unsigned char *uuid) {
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struct openvz_driver *driver = conn->privateData;
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virDomainObjPtr vm;
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virDomainPtr dom = NULL;
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openvzDriverLock(driver);
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vm = virDomainFindByUUID(&driver->domains, uuid);
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openvzDriverUnlock(driver);
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if (!vm) {
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openvzError(VIR_ERR_NO_DOMAIN, NULL);
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goto cleanup;
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}
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dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
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if (dom)
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dom->id = vm->def->id;
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cleanup:
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if (vm)
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virDomainObjUnlock(vm);
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return dom;
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}
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|
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static virDomainPtr openvzDomainLookupByName(virConnectPtr conn,
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const char *name) {
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struct openvz_driver *driver = conn->privateData;
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virDomainObjPtr vm;
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virDomainPtr dom = NULL;
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|
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openvzDriverLock(driver);
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vm = virDomainFindByName(&driver->domains, name);
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openvzDriverUnlock(driver);
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if (!vm) {
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openvzError(VIR_ERR_NO_DOMAIN, NULL);
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goto cleanup;
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}
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dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
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if (dom)
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dom->id = vm->def->id;
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cleanup:
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if (vm)
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virDomainObjUnlock(vm);
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return dom;
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}
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|
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static int openvzDomainGetInfo(virDomainPtr dom,
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|
virDomainInfoPtr info) {
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struct openvz_driver *driver = dom->conn->privateData;
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virDomainObjPtr vm;
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int ret = -1;
|
|
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openvzDriverLock(driver);
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vm = virDomainFindByUUID(&driver->domains, dom->uuid);
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openvzDriverUnlock(driver);
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|
|
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if (!vm) {
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openvzError(VIR_ERR_NO_DOMAIN, "%s",
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_("no domain with matching uuid"));
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goto cleanup;
|
|
}
|
|
|
|
info->state = vm->state;
|
|
|
|
if (!virDomainObjIsActive(vm)) {
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info->cpuTime = 0;
|
|
} else {
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if (openvzGetProcessInfo(&(info->cpuTime), dom->id) < 0) {
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openvzError(VIR_ERR_OPERATION_FAILED,
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_("cannot read cputime for domain %d"), dom->id);
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goto cleanup;
|
|
}
|
|
}
|
|
|
|
info->maxMem = vm->def->mem.max_balloon;
|
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info->memory = vm->def->mem.cur_balloon;
|
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info->nrVirtCpu = vm->def->vcpus;
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ret = 0;
|
|
|
|
cleanup:
|
|
if (vm)
|
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virDomainObjUnlock(vm);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int openvzDomainIsActive(virDomainPtr dom)
|
|
{
|
|
struct openvz_driver *driver = dom->conn->privateData;
|
|
virDomainObjPtr obj;
|
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int ret = -1;
|
|
|
|
openvzDriverLock(driver);
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obj = virDomainFindByUUID(&driver->domains, dom->uuid);
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openvzDriverUnlock(driver);
|
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if (!obj) {
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openvzError(VIR_ERR_NO_DOMAIN, NULL);
|
|
goto cleanup;
|
|
}
|
|
ret = virDomainObjIsActive(obj);
|
|
|
|
cleanup:
|
|
if (obj)
|
|
virDomainObjUnlock(obj);
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return ret;
|
|
}
|
|
|
|
|
|
static int openvzDomainIsPersistent(virDomainPtr dom)
|
|
{
|
|
struct openvz_driver *driver = dom->conn->privateData;
|
|
virDomainObjPtr obj;
|
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int ret = -1;
|
|
|
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openvzDriverLock(driver);
|
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obj = virDomainFindByUUID(&driver->domains, dom->uuid);
|
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openvzDriverUnlock(driver);
|
|
if (!obj) {
|
|
openvzError(VIR_ERR_NO_DOMAIN, NULL);
|
|
goto cleanup;
|
|
}
|
|
ret = obj->persistent;
|
|
|
|
cleanup:
|
|
if (obj)
|
|
virDomainObjUnlock(obj);
|
|
return ret;
|
|
}
|
|
|
|
static int openvzDomainIsUpdated(virDomainPtr dom ATTRIBUTE_UNUSED)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static char *openvzDomainGetXMLDesc(virDomainPtr dom, int flags) {
|
|
struct openvz_driver *driver = dom->conn->privateData;
|
|
virDomainObjPtr vm;
|
|
char *ret = NULL;
|
|
|
|
openvzDriverLock(driver);
|
|
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
|
|
openvzDriverUnlock(driver);
|
|
|
|
if (!vm) {
|
|
openvzError(VIR_ERR_NO_DOMAIN, "%s",
|
|
_("no domain with matching uuid"));
|
|
goto cleanup;
|
|
}
|
|
|
|
ret = virDomainDefFormat(vm->def, flags);
|
|
|
|
cleanup:
|
|
if (vm)
|
|
virDomainObjUnlock(vm);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*
|
|
* Convenient helper to target a command line argv
|
|
* and fill in an empty slot with the supplied
|
|
* key value. This lets us declare the argv on the
|
|
* stack and just splice in the domain name after
|
|
*/
|
|
#define PROGRAM_SENTINAL ((char *)0x1)
|
|
static void openvzSetProgramSentinal(const char **prog, const char *key)
|
|
{
|
|
const char **tmp = prog;
|
|
while (tmp && *tmp) {
|
|
if (*tmp == PROGRAM_SENTINAL) {
|
|
*tmp = key;
|
|
break;
|
|
}
|
|
tmp++;
|
|
}
|
|
}
|
|
|
|
static int openvzDomainSuspend(virDomainPtr dom) {
|
|
struct openvz_driver *driver = dom->conn->privateData;
|
|
virDomainObjPtr vm;
|
|
const char *prog[] = {VZCTL, "--quiet", "chkpnt", PROGRAM_SENTINAL, "--suspend", NULL};
|
|
int ret = -1;
|
|
|
|
openvzDriverLock(driver);
|
|
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
|
|
openvzDriverUnlock(driver);
|
|
|
|
if (!vm) {
|
|
openvzError(VIR_ERR_NO_DOMAIN, "%s",
|
|
_("no domain with matching uuid"));
|
|
goto cleanup;
|
|
}
|
|
|
|
if (!virDomainObjIsActive(vm)) {
|
|
openvzError(VIR_ERR_OPERATION_INVALID, "%s",
|
|
_("Domain is not running"));
|
|
goto cleanup;
|
|
}
|
|
|
|
if (vm->state != VIR_DOMAIN_PAUSED) {
|
|
openvzSetProgramSentinal(prog, vm->def->name);
|
|
if (virRun(prog, NULL) < 0) {
|
|
goto cleanup;
|
|
}
|
|
vm->state = VIR_DOMAIN_PAUSED;
|
|
}
|
|
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
if (vm)
|
|
virDomainObjUnlock(vm);
|
|
return ret;
|
|
}
|
|
|
|
static int openvzDomainResume(virDomainPtr dom) {
|
|
struct openvz_driver *driver = dom->conn->privateData;
|
|
virDomainObjPtr vm;
|
|
const char *prog[] = {VZCTL, "--quiet", "chkpnt", PROGRAM_SENTINAL, "--resume", NULL};
|
|
int ret = -1;
|
|
|
|
openvzDriverLock(driver);
|
|
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
|
|
openvzDriverUnlock(driver);
|
|
|
|
if (!vm) {
|
|
openvzError(VIR_ERR_NO_DOMAIN, "%s",
|
|
_("no domain with matching uuid"));
|
|
goto cleanup;
|
|
}
|
|
|
|
if (!virDomainObjIsActive(vm)) {
|
|
openvzError(VIR_ERR_OPERATION_INVALID, "%s",
|
|
_("Domain is not running"));
|
|
goto cleanup;
|
|
}
|
|
|
|
if (vm->state == VIR_DOMAIN_PAUSED) {
|
|
openvzSetProgramSentinal(prog, vm->def->name);
|
|
if (virRun(prog, NULL) < 0) {
|
|
goto cleanup;
|
|
}
|
|
vm->state = VIR_DOMAIN_RUNNING;
|
|
}
|
|
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
if (vm)
|
|
virDomainObjUnlock(vm);
|
|
return ret;
|
|
}
|
|
|
|
static int openvzDomainShutdown(virDomainPtr dom) {
|
|
struct openvz_driver *driver = dom->conn->privateData;
|
|
virDomainObjPtr vm;
|
|
const char *prog[] = {VZCTL, "--quiet", "stop", PROGRAM_SENTINAL, NULL};
|
|
int ret = -1;
|
|
|
|
openvzDriverLock(driver);
|
|
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
|
|
openvzDriverUnlock(driver);
|
|
|
|
if (!vm) {
|
|
openvzError(VIR_ERR_NO_DOMAIN, "%s",
|
|
_("no domain with matching uuid"));
|
|
goto cleanup;
|
|
}
|
|
|
|
openvzSetProgramSentinal(prog, vm->def->name);
|
|
if (vm->state != VIR_DOMAIN_RUNNING) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("domain is not in running state"));
|
|
goto cleanup;
|
|
}
|
|
|
|
if (virRun(prog, NULL) < 0)
|
|
goto cleanup;
|
|
|
|
vm->def->id = -1;
|
|
vm->state = VIR_DOMAIN_SHUTOFF;
|
|
dom->id = -1;
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
if (vm)
|
|
virDomainObjUnlock(vm);
|
|
return ret;
|
|
}
|
|
|
|
static int openvzDomainReboot(virDomainPtr dom,
|
|
unsigned int flags ATTRIBUTE_UNUSED) {
|
|
struct openvz_driver *driver = dom->conn->privateData;
|
|
virDomainObjPtr vm;
|
|
const char *prog[] = {VZCTL, "--quiet", "restart", PROGRAM_SENTINAL, NULL};
|
|
int ret = -1;
|
|
|
|
openvzDriverLock(driver);
|
|
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
|
|
openvzDriverUnlock(driver);
|
|
|
|
if (!vm) {
|
|
openvzError(VIR_ERR_NO_DOMAIN, "%s",
|
|
_("no domain with matching uuid"));
|
|
goto cleanup;
|
|
}
|
|
|
|
openvzSetProgramSentinal(prog, vm->def->name);
|
|
if (vm->state != VIR_DOMAIN_RUNNING) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("domain is not in running state"));
|
|
goto cleanup;
|
|
}
|
|
|
|
if (virRun(prog, NULL) < 0)
|
|
goto cleanup;
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
if (vm)
|
|
virDomainObjUnlock(vm);
|
|
return ret;
|
|
}
|
|
|
|
static char *
|
|
openvzGenerateVethName(int veid, char *dev_name_ve)
|
|
{
|
|
char dev_name[32];
|
|
int ifNo = 0;
|
|
|
|
if (sscanf(dev_name_ve, "%*[^0-9]%d", &ifNo) != 1)
|
|
return NULL;
|
|
if (snprintf(dev_name, sizeof(dev_name), "veth%d.%d", veid, ifNo) < 7)
|
|
return NULL;
|
|
return strdup(dev_name);
|
|
}
|
|
|
|
static char *
|
|
openvzGenerateContainerVethName(int veid)
|
|
{
|
|
char *temp = NULL;
|
|
char *name = NULL;
|
|
|
|
/* try to get line "^NETIF=..." from config */
|
|
if (openvzReadVPSConfigParam(veid, "NETIF", &temp) <= 0) {
|
|
name = strdup("eth0");
|
|
} else {
|
|
char *saveptr = NULL;
|
|
char *s;
|
|
int max = 0;
|
|
|
|
/* get maximum interface number (actually, it is the last one) */
|
|
for (s=strtok_r(temp, ";", &saveptr); s; s=strtok_r(NULL, ";", &saveptr)) {
|
|
int x;
|
|
|
|
if (sscanf(s, "ifname=eth%d", &x) != 1) return NULL;
|
|
if (x > max) max = x;
|
|
}
|
|
|
|
/* set new name */
|
|
virAsprintf(&name, "eth%d", max + 1);
|
|
}
|
|
|
|
VIR_FREE(temp);
|
|
|
|
if (name == NULL) {
|
|
virReportOOMError();
|
|
}
|
|
|
|
return name;
|
|
}
|
|
|
|
static int
|
|
openvzDomainSetNetwork(virConnectPtr conn, const char *vpsid,
|
|
virDomainNetDefPtr net,
|
|
virBufferPtr configBuf)
|
|
{
|
|
int rc = 0, narg;
|
|
const char *prog[OPENVZ_MAX_ARG];
|
|
char macaddr[VIR_MAC_STRING_BUFLEN];
|
|
unsigned char host_mac[VIR_MAC_BUFLEN];
|
|
char host_macaddr[VIR_MAC_STRING_BUFLEN];
|
|
struct openvz_driver *driver = conn->privateData;
|
|
char *opt = NULL;
|
|
|
|
#define ADD_ARG_LIT(thisarg) \
|
|
do { \
|
|
if (narg >= OPENVZ_MAX_ARG) \
|
|
goto no_memory; \
|
|
if ((prog[narg++] = strdup(thisarg)) == NULL) \
|
|
goto no_memory; \
|
|
} while (0)
|
|
|
|
|
|
if (net == NULL)
|
|
return 0;
|
|
if (vpsid == NULL) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("Container ID is not specified"));
|
|
return -1;
|
|
}
|
|
|
|
for (narg = 0; narg < OPENVZ_MAX_ARG; narg++)
|
|
prog[narg] = NULL;
|
|
|
|
narg = 0;
|
|
|
|
if (net->type == VIR_DOMAIN_NET_TYPE_BRIDGE ||
|
|
net->type == VIR_DOMAIN_NET_TYPE_ETHERNET) {
|
|
ADD_ARG_LIT(VZCTL);
|
|
ADD_ARG_LIT("--quiet");
|
|
ADD_ARG_LIT("set");
|
|
ADD_ARG_LIT(vpsid);
|
|
}
|
|
|
|
virFormatMacAddr(net->mac, macaddr);
|
|
virCapabilitiesGenerateMac(driver->caps, host_mac);
|
|
virFormatMacAddr(host_mac, host_macaddr);
|
|
|
|
if (net->type == VIR_DOMAIN_NET_TYPE_BRIDGE ||
|
|
(net->type == VIR_DOMAIN_NET_TYPE_ETHERNET &&
|
|
net->data.ethernet.ipaddr == NULL)) {
|
|
virBuffer buf = VIR_BUFFER_INITIALIZER;
|
|
int veid = openvzGetVEID(vpsid);
|
|
|
|
/* --netif_add ifname[,mac,host_ifname,host_mac] */
|
|
ADD_ARG_LIT("--netif_add") ;
|
|
|
|
/* if user doesn't specify guest interface name,
|
|
* then we need to generate it */
|
|
if (net->data.ethernet.dev == NULL) {
|
|
net->data.ethernet.dev = openvzGenerateContainerVethName(veid);
|
|
if (net->data.ethernet.dev == NULL) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("Could not generate eth name for container"));
|
|
rc = -1;
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
/* if user doesn't specified host interface name,
|
|
* than we need to generate it */
|
|
if (net->ifname == NULL) {
|
|
net->ifname = openvzGenerateVethName(veid, net->data.ethernet.dev);
|
|
if (net->ifname == NULL) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("Could not generate veth name"));
|
|
rc = -1;
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
virBufferAdd(&buf, net->data.ethernet.dev, -1); /* Guest dev */
|
|
virBufferAsprintf(&buf, ",%s", macaddr); /* Guest dev mac */
|
|
virBufferAsprintf(&buf, ",%s", net->ifname); /* Host dev */
|
|
virBufferAsprintf(&buf, ",%s", host_macaddr); /* Host dev mac */
|
|
|
|
if (net->type == VIR_DOMAIN_NET_TYPE_BRIDGE) {
|
|
if (driver->version >= VZCTL_BRIDGE_MIN_VERSION) {
|
|
virBufferAsprintf(&buf, ",%s", net->data.bridge.brname); /* Host bridge */
|
|
} else {
|
|
virBufferAsprintf(configBuf, "ifname=%s", net->data.ethernet.dev);
|
|
virBufferAsprintf(configBuf, ",mac=%s", macaddr); /* Guest dev mac */
|
|
virBufferAsprintf(configBuf, ",host_ifname=%s", net->ifname); /* Host dev */
|
|
virBufferAsprintf(configBuf, ",host_mac=%s", host_macaddr); /* Host dev mac */
|
|
virBufferAsprintf(configBuf, ",bridge=%s", net->data.bridge.brname); /* Host bridge */
|
|
}
|
|
}
|
|
|
|
if (!(opt = virBufferContentAndReset(&buf)))
|
|
goto no_memory;
|
|
|
|
ADD_ARG_LIT(opt) ;
|
|
VIR_FREE(opt);
|
|
} else if (net->type == VIR_DOMAIN_NET_TYPE_ETHERNET &&
|
|
net->data.ethernet.ipaddr != NULL) {
|
|
/* --ipadd ip */
|
|
ADD_ARG_LIT("--ipadd") ;
|
|
ADD_ARG_LIT(net->data.ethernet.ipaddr) ;
|
|
}
|
|
|
|
/* TODO: processing NAT and physical device */
|
|
|
|
if (prog[0] != NULL) {
|
|
ADD_ARG_LIT("--save");
|
|
if (virRun(prog, NULL) < 0) {
|
|
rc = -1;
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
exit:
|
|
cmdExecFree(prog);
|
|
return rc;
|
|
|
|
no_memory:
|
|
VIR_FREE(opt);
|
|
openvzError(VIR_ERR_INTERNAL_ERROR,
|
|
_("Could not put argument to %s"), VZCTL);
|
|
cmdExecFree(prog);
|
|
return -1;
|
|
|
|
#undef ADD_ARG_LIT
|
|
}
|
|
|
|
|
|
static int
|
|
openvzDomainSetNetworkConfig(virConnectPtr conn,
|
|
virDomainDefPtr def)
|
|
{
|
|
unsigned int i;
|
|
virBuffer buf = VIR_BUFFER_INITIALIZER;
|
|
char *param;
|
|
int first = 1;
|
|
struct openvz_driver *driver = conn->privateData;
|
|
|
|
for (i = 0 ; i < def->nnets ; i++) {
|
|
if (driver->version < VZCTL_BRIDGE_MIN_VERSION &&
|
|
def->nets[i]->type == VIR_DOMAIN_NET_TYPE_BRIDGE) {
|
|
if (first)
|
|
first = 0;
|
|
else
|
|
virBufferAddLit(&buf, ";");
|
|
}
|
|
|
|
if (openvzDomainSetNetwork(conn, def->name, def->nets[i], &buf) < 0) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("Could not configure network"));
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
if (driver->version < VZCTL_BRIDGE_MIN_VERSION && def->nnets) {
|
|
param = virBufferContentAndReset(&buf);
|
|
if (param) {
|
|
if (openvzWriteVPSConfigParam(strtoI(def->name), "NETIF", param) < 0) {
|
|
VIR_FREE(param);
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("cannot replace NETIF config"));
|
|
return -1;
|
|
}
|
|
VIR_FREE(param);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
exit:
|
|
virBufferFreeAndReset(&buf);
|
|
return -1;
|
|
}
|
|
|
|
|
|
static virDomainPtr
|
|
openvzDomainDefineXML(virConnectPtr conn, const char *xml)
|
|
{
|
|
struct openvz_driver *driver = conn->privateData;
|
|
virDomainDefPtr vmdef = NULL;
|
|
virDomainObjPtr vm = NULL;
|
|
virDomainPtr dom = NULL;
|
|
|
|
openvzDriverLock(driver);
|
|
if ((vmdef = virDomainDefParseString(driver->caps, xml,
|
|
VIR_DOMAIN_XML_INACTIVE)) == NULL)
|
|
goto cleanup;
|
|
|
|
vm = virDomainFindByName(&driver->domains, vmdef->name);
|
|
if (vm) {
|
|
openvzError(VIR_ERR_OPERATION_FAILED,
|
|
_("Already an OPENVZ VM active with the id '%s'"),
|
|
vmdef->name);
|
|
goto cleanup;
|
|
}
|
|
if (!(vm = virDomainAssignDef(driver->caps,
|
|
&driver->domains, vmdef, false)))
|
|
goto cleanup;
|
|
vmdef = NULL;
|
|
vm->persistent = 1;
|
|
|
|
if (openvzSetInitialConfig(vm->def) < 0) {
|
|
VIR_ERROR(_("Error creating initial configuration"));
|
|
goto cleanup;
|
|
}
|
|
|
|
/* TODO: set quota */
|
|
|
|
if (openvzSetDefinedUUID(strtoI(vm->def->name), vm->def->uuid) < 0) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("Could not set UUID"));
|
|
goto cleanup;
|
|
}
|
|
|
|
if (openvzDomainSetNetworkConfig(conn, vm->def) < 0)
|
|
goto cleanup;
|
|
|
|
if (vm->def->vcpus != vm->def->maxvcpus) {
|
|
openvzError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
|
|
_("current vcpu count must equal maximum"));
|
|
goto cleanup;
|
|
}
|
|
if (vm->def->maxvcpus > 0) {
|
|
if (openvzDomainSetVcpusInternal(vm, vm->def->maxvcpus) < 0) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("Could not set number of virtual cpu"));
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
if (vm->def->mem.cur_balloon > 0) {
|
|
if (openvzDomainSetMemoryInternal(vm, vm->def->mem.cur_balloon) < 0) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("Could not set memory size"));
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
|
|
if (dom)
|
|
dom->id = -1;
|
|
|
|
cleanup:
|
|
virDomainDefFree(vmdef);
|
|
if (vm)
|
|
virDomainObjUnlock(vm);
|
|
openvzDriverUnlock(driver);
|
|
return dom;
|
|
}
|
|
|
|
static virDomainPtr
|
|
openvzDomainCreateXML(virConnectPtr conn, const char *xml,
|
|
unsigned int flags)
|
|
{
|
|
struct openvz_driver *driver = conn->privateData;
|
|
virDomainDefPtr vmdef = NULL;
|
|
virDomainObjPtr vm = NULL;
|
|
virDomainPtr dom = NULL;
|
|
const char *progstart[] = {VZCTL, "--quiet", "start", PROGRAM_SENTINAL, NULL};
|
|
|
|
virCheckFlags(0, NULL);
|
|
|
|
openvzDriverLock(driver);
|
|
if ((vmdef = virDomainDefParseString(driver->caps, xml,
|
|
VIR_DOMAIN_XML_INACTIVE)) == NULL)
|
|
goto cleanup;
|
|
|
|
vm = virDomainFindByName(&driver->domains, vmdef->name);
|
|
if (vm) {
|
|
openvzError(VIR_ERR_OPERATION_FAILED,
|
|
_("Already an OPENVZ VM defined with the id '%s'"),
|
|
vmdef->name);
|
|
goto cleanup;
|
|
}
|
|
if (!(vm = virDomainAssignDef(driver->caps,
|
|
&driver->domains, vmdef, false)))
|
|
goto cleanup;
|
|
vmdef = NULL;
|
|
/* All OpenVZ domains seem to be persistent - this is a bit of a violation
|
|
* of this libvirt API which is intended for transient domain creation */
|
|
vm->persistent = 1;
|
|
|
|
if (openvzSetInitialConfig(vm->def) < 0) {
|
|
VIR_ERROR(_("Error creating initial configuration"));
|
|
goto cleanup;
|
|
}
|
|
|
|
if (openvzSetDefinedUUID(strtoI(vm->def->name), vm->def->uuid) < 0) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("Could not set UUID"));
|
|
goto cleanup;
|
|
}
|
|
|
|
if (openvzDomainSetNetworkConfig(conn, vm->def) < 0)
|
|
goto cleanup;
|
|
|
|
openvzSetProgramSentinal(progstart, vm->def->name);
|
|
|
|
if (virRun(progstart, NULL) < 0) {
|
|
goto cleanup;
|
|
}
|
|
|
|
vm->pid = strtoI(vm->def->name);
|
|
vm->def->id = vm->pid;
|
|
vm->state = VIR_DOMAIN_RUNNING;
|
|
|
|
if (vm->def->maxvcpus > 0) {
|
|
if (openvzDomainSetVcpusInternal(vm, vm->def->maxvcpus) < 0) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("Could not set number of virtual cpu"));
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
|
|
if (dom)
|
|
dom->id = vm->def->id;
|
|
|
|
cleanup:
|
|
virDomainDefFree(vmdef);
|
|
if (vm)
|
|
virDomainObjUnlock(vm);
|
|
openvzDriverUnlock(driver);
|
|
return dom;
|
|
}
|
|
|
|
static int
|
|
openvzDomainCreateWithFlags(virDomainPtr dom, unsigned int flags)
|
|
{
|
|
struct openvz_driver *driver = dom->conn->privateData;
|
|
virDomainObjPtr vm;
|
|
const char *prog[] = {VZCTL, "--quiet", "start", PROGRAM_SENTINAL, NULL };
|
|
int ret = -1;
|
|
|
|
virCheckFlags(0, -1);
|
|
|
|
openvzDriverLock(driver);
|
|
vm = virDomainFindByName(&driver->domains, dom->name);
|
|
openvzDriverUnlock(driver);
|
|
|
|
if (!vm) {
|
|
openvzError(VIR_ERR_NO_DOMAIN, "%s",
|
|
_("no domain with matching id"));
|
|
goto cleanup;
|
|
}
|
|
|
|
if (vm->state != VIR_DOMAIN_SHUTOFF) {
|
|
openvzError(VIR_ERR_OPERATION_DENIED, "%s",
|
|
_("domain is not in shutoff state"));
|
|
goto cleanup;
|
|
}
|
|
|
|
openvzSetProgramSentinal(prog, vm->def->name);
|
|
if (virRun(prog, NULL) < 0) {
|
|
goto cleanup;
|
|
}
|
|
|
|
vm->pid = strtoI(vm->def->name);
|
|
vm->def->id = vm->pid;
|
|
dom->id = vm->pid;
|
|
vm->state = VIR_DOMAIN_RUNNING;
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
if (vm)
|
|
virDomainObjUnlock(vm);
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
openvzDomainCreate(virDomainPtr dom)
|
|
{
|
|
return openvzDomainCreateWithFlags(dom, 0);
|
|
}
|
|
|
|
static int
|
|
openvzDomainUndefine(virDomainPtr dom)
|
|
{
|
|
struct openvz_driver *driver = dom->conn->privateData;
|
|
virDomainObjPtr vm;
|
|
const char *prog[] = { VZCTL, "--quiet", "destroy", PROGRAM_SENTINAL, NULL };
|
|
int ret = -1;
|
|
|
|
openvzDriverLock(driver);
|
|
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
|
|
if (!vm) {
|
|
openvzError(VIR_ERR_NO_DOMAIN, "%s",
|
|
_("no domain with matching uuid"));
|
|
goto cleanup;
|
|
}
|
|
|
|
if (virDomainObjIsActive(vm)) {
|
|
openvzError(VIR_ERR_OPERATION_INVALID, "%s",
|
|
_("cannot delete active domain"));
|
|
goto cleanup;
|
|
}
|
|
|
|
openvzSetProgramSentinal(prog, vm->def->name);
|
|
if (virRun(prog, NULL) < 0) {
|
|
goto cleanup;
|
|
}
|
|
|
|
virDomainRemoveInactive(&driver->domains, vm);
|
|
vm = NULL;
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
if (vm)
|
|
virDomainObjUnlock(vm);
|
|
openvzDriverUnlock(driver);
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
openvzDomainSetAutostart(virDomainPtr dom, int autostart)
|
|
{
|
|
struct openvz_driver *driver = dom->conn->privateData;
|
|
virDomainObjPtr vm;
|
|
const char *prog[] = { VZCTL, "--quiet", "set", PROGRAM_SENTINAL,
|
|
"--onboot", autostart ? "yes" : "no",
|
|
"--save", NULL };
|
|
int ret = -1;
|
|
|
|
openvzDriverLock(driver);
|
|
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
|
|
openvzDriverUnlock(driver);
|
|
|
|
if (!vm) {
|
|
openvzError(VIR_ERR_NO_DOMAIN, "%s",
|
|
_("no domain with matching uuid"));
|
|
goto cleanup;
|
|
}
|
|
|
|
openvzSetProgramSentinal(prog, vm->def->name);
|
|
if (virRun(prog, NULL) < 0) {
|
|
goto cleanup;
|
|
}
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
if (vm)
|
|
virDomainObjUnlock(vm);
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
openvzDomainGetAutostart(virDomainPtr dom, int *autostart)
|
|
{
|
|
struct openvz_driver *driver = dom->conn->privateData;
|
|
virDomainObjPtr vm;
|
|
char *value = NULL;
|
|
int ret = -1;
|
|
|
|
openvzDriverLock(driver);
|
|
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
|
|
openvzDriverUnlock(driver);
|
|
|
|
if (!vm) {
|
|
openvzError(VIR_ERR_NO_DOMAIN, "%s",
|
|
_("no domain with matching uuid"));
|
|
goto cleanup;
|
|
}
|
|
|
|
if (openvzReadVPSConfigParam(strtoI(vm->def->name), "ONBOOT", &value) < 0) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("Could not read container config"));
|
|
goto cleanup;
|
|
}
|
|
|
|
*autostart = 0;
|
|
if (STREQ(value,"yes"))
|
|
*autostart = 1;
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
VIR_FREE(value);
|
|
|
|
if (vm)
|
|
virDomainObjUnlock(vm);
|
|
return ret;
|
|
}
|
|
|
|
static int openvzGetMaxVCPUs(virConnectPtr conn ATTRIBUTE_UNUSED,
|
|
const char *type)
|
|
{
|
|
if (type == NULL || STRCASEEQ(type, "openvz"))
|
|
return 1028; /* OpenVZ has no limitation */
|
|
|
|
openvzError(VIR_ERR_INVALID_ARG,
|
|
_("unknown type '%s'"), type);
|
|
return -1;
|
|
}
|
|
|
|
static int
|
|
openvzDomainGetVcpusFlags(virDomainPtr dom ATTRIBUTE_UNUSED,
|
|
unsigned int flags)
|
|
{
|
|
if (flags != (VIR_DOMAIN_VCPU_LIVE | VIR_DOMAIN_VCPU_MAXIMUM)) {
|
|
openvzError(VIR_ERR_INVALID_ARG, _("unsupported flags (0x%x)"), flags);
|
|
return -1;
|
|
}
|
|
|
|
return openvzGetMaxVCPUs(NULL, "openvz");
|
|
}
|
|
|
|
static int openvzDomainGetMaxVcpus(virDomainPtr dom)
|
|
{
|
|
return openvzDomainGetVcpusFlags(dom, (VIR_DOMAIN_VCPU_LIVE |
|
|
VIR_DOMAIN_VCPU_MAXIMUM));
|
|
}
|
|
|
|
static int openvzDomainSetVcpusInternal(virDomainObjPtr vm,
|
|
unsigned int nvcpus)
|
|
{
|
|
char str_vcpus[32];
|
|
const char *prog[] = { VZCTL, "--quiet", "set", PROGRAM_SENTINAL,
|
|
"--cpus", str_vcpus, "--save", NULL };
|
|
unsigned int pcpus;
|
|
pcpus = openvzGetNodeCPUs();
|
|
if (pcpus > 0 && pcpus < nvcpus)
|
|
nvcpus = pcpus;
|
|
|
|
snprintf(str_vcpus, 31, "%d", nvcpus);
|
|
str_vcpus[31] = '\0';
|
|
|
|
openvzSetProgramSentinal(prog, vm->def->name);
|
|
if (virRun(prog, NULL) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
vm->def->maxvcpus = vm->def->vcpus = nvcpus;
|
|
return 0;
|
|
}
|
|
|
|
static int openvzDomainSetVcpusFlags(virDomainPtr dom, unsigned int nvcpus,
|
|
unsigned int flags)
|
|
{
|
|
virDomainObjPtr vm;
|
|
struct openvz_driver *driver = dom->conn->privateData;
|
|
int ret = -1;
|
|
|
|
if (flags != VIR_DOMAIN_VCPU_LIVE) {
|
|
openvzError(VIR_ERR_INVALID_ARG, _("unsupported flags (0x%x)"), flags);
|
|
return -1;
|
|
}
|
|
|
|
openvzDriverLock(driver);
|
|
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
|
|
openvzDriverUnlock(driver);
|
|
|
|
if (!vm) {
|
|
openvzError(VIR_ERR_NO_DOMAIN, "%s",
|
|
_("no domain with matching uuid"));
|
|
goto cleanup;
|
|
}
|
|
|
|
if (nvcpus <= 0) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("VCPUs should be >= 1"));
|
|
goto cleanup;
|
|
}
|
|
|
|
openvzDomainSetVcpusInternal(vm, nvcpus);
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
if (vm)
|
|
virDomainObjUnlock(vm);
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
openvzDomainSetVcpus(virDomainPtr dom, unsigned int nvcpus)
|
|
{
|
|
return openvzDomainSetVcpusFlags(dom, nvcpus, VIR_DOMAIN_VCPU_LIVE);
|
|
}
|
|
|
|
static virDrvOpenStatus openvzOpen(virConnectPtr conn,
|
|
virConnectAuthPtr auth ATTRIBUTE_UNUSED,
|
|
int flags ATTRIBUTE_UNUSED)
|
|
{
|
|
struct openvz_driver *driver;
|
|
|
|
if (conn->uri == NULL) {
|
|
if (!virFileExists("/proc/vz"))
|
|
return VIR_DRV_OPEN_DECLINED;
|
|
|
|
if (access("/proc/vz", W_OK) < 0)
|
|
return VIR_DRV_OPEN_DECLINED;
|
|
|
|
conn->uri = xmlParseURI("openvz:///system");
|
|
if (conn->uri == NULL) {
|
|
virReportOOMError();
|
|
return VIR_DRV_OPEN_ERROR;
|
|
}
|
|
} else {
|
|
/* If scheme isn't 'openvz', then its for another driver */
|
|
if (conn->uri->scheme == NULL ||
|
|
STRNEQ (conn->uri->scheme, "openvz"))
|
|
return VIR_DRV_OPEN_DECLINED;
|
|
|
|
/* If server name is given, its for remote driver */
|
|
if (conn->uri->server != NULL)
|
|
return VIR_DRV_OPEN_DECLINED;
|
|
|
|
/* If path isn't /system, then they typoed, so tell them correct path */
|
|
if (conn->uri->path == NULL ||
|
|
STRNEQ (conn->uri->path, "/system")) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR,
|
|
_("unexpected OpenVZ URI path '%s', try openvz:///system"),
|
|
conn->uri->path);
|
|
return VIR_DRV_OPEN_ERROR;
|
|
}
|
|
|
|
if (!virFileExists("/proc/vz")) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("OpenVZ control file /proc/vz does not exist"));
|
|
return VIR_DRV_OPEN_ERROR;
|
|
}
|
|
|
|
if (access("/proc/vz", W_OK) < 0) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
|
|
_("OpenVZ control file /proc/vz is not accessible"));
|
|
return VIR_DRV_OPEN_ERROR;
|
|
}
|
|
}
|
|
|
|
/* We now know the URI is definitely for this driver, so beyond
|
|
* here, don't return DECLINED, always use ERROR */
|
|
|
|
if (VIR_ALLOC(driver) < 0) {
|
|
virReportOOMError();
|
|
return VIR_DRV_OPEN_ERROR;
|
|
}
|
|
|
|
if (virDomainObjListInit(&driver->domains) < 0)
|
|
goto cleanup;
|
|
|
|
if (!(driver->caps = openvzCapsInit()))
|
|
goto cleanup;
|
|
|
|
if (openvzLoadDomains(driver) < 0)
|
|
goto cleanup;
|
|
|
|
if (openvzExtractVersion(driver) < 0)
|
|
goto cleanup;
|
|
|
|
conn->privateData = driver;
|
|
|
|
return VIR_DRV_OPEN_SUCCESS;
|
|
|
|
cleanup:
|
|
openvzFreeDriver(driver);
|
|
return VIR_DRV_OPEN_ERROR;
|
|
};
|
|
|
|
static int openvzClose(virConnectPtr conn) {
|
|
struct openvz_driver *driver = conn->privateData;
|
|
|
|
openvzFreeDriver(driver);
|
|
conn->privateData = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const char *openvzGetType(virConnectPtr conn ATTRIBUTE_UNUSED) {
|
|
return "OpenVZ";
|
|
}
|
|
|
|
static int openvzIsEncrypted(virConnectPtr conn ATTRIBUTE_UNUSED) {
|
|
/* Encryption is not relevant / applicable to way we talk to openvz */
|
|
return 0;
|
|
}
|
|
|
|
static int openvzIsSecure(virConnectPtr conn ATTRIBUTE_UNUSED) {
|
|
/* We run CLI tools directly so this is secure */
|
|
return 1;
|
|
}
|
|
|
|
static char *openvzGetCapabilities(virConnectPtr conn) {
|
|
struct openvz_driver *driver = conn->privateData;
|
|
char *ret;
|
|
|
|
openvzDriverLock(driver);
|
|
ret = virCapabilitiesFormatXML(driver->caps);
|
|
openvzDriverUnlock(driver);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int openvzListDomains(virConnectPtr conn ATTRIBUTE_UNUSED,
|
|
int *ids, int nids) {
|
|
int got = 0;
|
|
int veid;
|
|
pid_t pid;
|
|
int outfd = -1;
|
|
int ret;
|
|
char buf[32];
|
|
char *endptr;
|
|
const char *cmd[] = {VZLIST, "-ovpsid", "-H" , NULL};
|
|
|
|
ret = virExec(cmd, NULL, NULL,
|
|
&pid, -1, &outfd, NULL, VIR_EXEC_NONE);
|
|
if (ret == -1) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR,
|
|
_("Could not exec %s"), VZLIST);
|
|
VIR_FORCE_CLOSE(outfd);
|
|
return -1;
|
|
}
|
|
|
|
while (got < nids) {
|
|
ret = openvz_readline(outfd, buf, 32);
|
|
if (!ret)
|
|
break;
|
|
if (virStrToLong_i(buf, &endptr, 10, &veid) < 0) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR,
|
|
_("Could not parse VPS ID %s"), buf);
|
|
continue;
|
|
}
|
|
ids[got] = veid;
|
|
got ++;
|
|
}
|
|
waitpid(pid, NULL, 0);
|
|
|
|
if (VIR_CLOSE(outfd) < 0) {
|
|
virReportSystemError(errno, "%s", _("failed to close file"));
|
|
return -1;
|
|
}
|
|
return got;
|
|
}
|
|
|
|
static int openvzNumDomains(virConnectPtr conn) {
|
|
struct openvz_driver *driver = conn->privateData;
|
|
int n;
|
|
|
|
openvzDriverLock(driver);
|
|
n = virDomainObjListNumOfDomains(&driver->domains, 1);
|
|
openvzDriverUnlock(driver);
|
|
|
|
return n;
|
|
}
|
|
|
|
static int openvzListDefinedDomains(virConnectPtr conn ATTRIBUTE_UNUSED,
|
|
char **const names, int nnames) {
|
|
int got = 0;
|
|
int veid, outfd = -1, ret;
|
|
pid_t pid;
|
|
char vpsname[32];
|
|
char buf[32];
|
|
char *endptr;
|
|
const char *cmd[] = {VZLIST, "-ovpsid", "-H", "-S", NULL};
|
|
|
|
/* the -S options lists only stopped domains */
|
|
ret = virExec(cmd, NULL, NULL,
|
|
&pid, -1, &outfd, NULL, VIR_EXEC_NONE);
|
|
if (ret == -1) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR,
|
|
_("Could not exec %s"), VZLIST);
|
|
goto out;
|
|
}
|
|
|
|
while (got < nnames) {
|
|
ret = openvz_readline(outfd, buf, 32);
|
|
if (!ret)
|
|
break;
|
|
if (virStrToLong_i(buf, &endptr, 10, &veid) < 0) {
|
|
openvzError(VIR_ERR_INTERNAL_ERROR,
|
|
_("Could not parse VPS ID %s"), buf);
|
|
continue;
|
|
}
|
|
snprintf(vpsname, sizeof(vpsname), "%d", veid);
|
|
if (!(names[got] = strdup(vpsname))) {
|
|
virReportOOMError();
|
|
goto out;
|
|
}
|
|
got ++;
|
|
}
|
|
waitpid(pid, NULL, 0);
|
|
if (VIR_CLOSE(outfd) < 0) {
|
|
virReportSystemError(errno, "%s", _("failed to close file"));
|
|
goto out;
|
|
}
|
|
return got;
|
|
|
|
out:
|
|
VIR_FORCE_CLOSE(outfd);
|
|
for ( ; got >= 0 ; got--)
|
|
VIR_FREE(names[got]);
|
|
return -1;
|
|
}
|
|
|
|
static int openvzGetProcessInfo(unsigned long long *cpuTime, int vpsid)
|
|
{
|
|
FILE *fp;
|
|
char *line = NULL;
|
|
size_t line_size = 0;
|
|
unsigned long long usertime, systime, nicetime;
|
|
int readvps = vpsid + 1; /* ensure readvps is initially different */
|
|
ssize_t ret;
|
|
|
|
/* read statistic from /proc/vz/vestat.
|
|
sample:
|
|
Version: 2.2
|
|
VEID user nice system uptime idle other..
|
|
33 78 0 1330 59454597 142650441835148 other..
|
|
55 178 0 5340 59424597 542650441835148 other..
|
|
*/
|
|
|
|
if ((fp = fopen("/proc/vz/vestat", "r")) == NULL)
|
|
return -1;
|
|
|
|
/*search line with VEID=vpsid*/
|
|
while (1) {
|
|
ret = getline(&line, &line_size, fp);
|
|
if (ret <= 0)
|
|
break;
|
|
|
|
if (sscanf (line, "%d %llu %llu %llu",
|
|
&readvps, &usertime, &nicetime, &systime) == 4
|
|
&& readvps == vpsid) { /*found vpsid*/
|
|
/* convert jiffies to nanoseconds */
|
|
*cpuTime = (1000ull * 1000ull * 1000ull
|
|
* (usertime + nicetime + systime)
|
|
/ (unsigned long long)sysconf(_SC_CLK_TCK));
|
|
break;
|
|
}
|
|
}
|
|
|
|
VIR_FREE(line);
|
|
VIR_FORCE_FCLOSE(fp);
|
|
if (ret < 0)
|
|
return -1;
|
|
|
|
if (readvps != vpsid) /*not found*/
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int openvzNumDefinedDomains(virConnectPtr conn) {
|
|
struct openvz_driver *driver = conn->privateData;
|
|
int n;
|
|
|
|
openvzDriverLock(driver);
|
|
n = virDomainObjListNumOfDomains(&driver->domains, 0);
|
|
openvzDriverUnlock(driver);
|
|
|
|
return n;
|
|
}
|
|
|
|
static int
|
|
openvzDomainSetMemoryInternal(virDomainObjPtr vm,
|
|
unsigned long mem)
|
|
{
|
|
char str_mem[16];
|
|
const char *prog[] = { VZCTL, "--quiet", "set", PROGRAM_SENTINAL,
|
|
"--kmemsize", str_mem, "--save", NULL
|
|
};
|
|
|
|
/* memory has to be changed its format from kbyte to byte */
|
|
snprintf(str_mem, sizeof(str_mem), "%lu", mem * 1024);
|
|
|
|
openvzSetProgramSentinal(prog, vm->def->name);
|
|
if (virRun(prog, NULL) < 0) {
|
|
goto cleanup;
|
|
}
|
|
|
|
return 0;
|
|
|
|
cleanup:
|
|
return -1;
|
|
}
|
|
|
|
static virDriver openvzDriver = {
|
|
VIR_DRV_OPENVZ,
|
|
"OPENVZ",
|
|
openvzOpen, /* open */
|
|
openvzClose, /* close */
|
|
NULL, /* supports_feature */
|
|
openvzGetType, /* type */
|
|
openvzGetVersion, /* version */
|
|
NULL, /* libvirtVersion (impl. in libvirt.c) */
|
|
NULL, /* getHostname */
|
|
NULL, /* getSysinfo */
|
|
openvzGetMaxVCPUs, /* getMaxVcpus */
|
|
nodeGetInfo, /* nodeGetInfo */
|
|
openvzGetCapabilities, /* getCapabilities */
|
|
openvzListDomains, /* listDomains */
|
|
openvzNumDomains, /* numOfDomains */
|
|
openvzDomainCreateXML, /* domainCreateXML */
|
|
openvzDomainLookupByID, /* domainLookupByID */
|
|
openvzDomainLookupByUUID, /* domainLookupByUUID */
|
|
openvzDomainLookupByName, /* domainLookupByName */
|
|
openvzDomainSuspend, /* domainSuspend */
|
|
openvzDomainResume, /* domainResume */
|
|
openvzDomainShutdown, /* domainShutdown */
|
|
openvzDomainReboot, /* domainReboot */
|
|
openvzDomainShutdown, /* domainDestroy */
|
|
openvzGetOSType, /* domainGetOSType */
|
|
NULL, /* domainGetMaxMemory */
|
|
NULL, /* domainSetMaxMemory */
|
|
NULL, /* domainSetMemory */
|
|
NULL, /* domainSetMemoryFlags */
|
|
NULL, /* domainSetMemoryParameters */
|
|
NULL, /* domainGetMemoryParameters */
|
|
NULL, /* domainSetBlkioParameters */
|
|
NULL, /* domainGetBlkioParameters */
|
|
openvzDomainGetInfo, /* domainGetInfo */
|
|
NULL, /* domainSave */
|
|
NULL, /* domainRestore */
|
|
NULL, /* domainCoreDump */
|
|
NULL, /* domainScreenshot */
|
|
openvzDomainSetVcpus, /* domainSetVcpus */
|
|
openvzDomainSetVcpusFlags, /* domainSetVcpusFlags */
|
|
openvzDomainGetVcpusFlags, /* domainGetVcpusFlags */
|
|
NULL, /* domainPinVcpu */
|
|
NULL, /* domainGetVcpus */
|
|
openvzDomainGetMaxVcpus, /* domainGetMaxVcpus */
|
|
NULL, /* domainGetSecurityLabel */
|
|
NULL, /* nodeGetSecurityModel */
|
|
openvzDomainGetXMLDesc, /* domainGetXMLDesc */
|
|
NULL, /* domainXmlFromNative */
|
|
NULL, /* domainXmlToNative */
|
|
openvzListDefinedDomains, /* listDefinedDomains */
|
|
openvzNumDefinedDomains, /* numOfDefinedDomains */
|
|
openvzDomainCreate, /* domainCreate */
|
|
openvzDomainCreateWithFlags, /* domainCreateWithFlags */
|
|
openvzDomainDefineXML, /* domainDefineXML */
|
|
openvzDomainUndefine, /* domainUndefine */
|
|
NULL, /* domainAttachDevice */
|
|
NULL, /* domainAttachDeviceFlags */
|
|
NULL, /* domainDetachDevice */
|
|
NULL, /* domainDetachDeviceFlags */
|
|
NULL, /* domainUpdateDeviceFlags */
|
|
openvzDomainGetAutostart, /* domainGetAutostart */
|
|
openvzDomainSetAutostart, /* domainSetAutostart */
|
|
NULL, /* domainGetSchedulerType */
|
|
NULL, /* domainGetSchedulerParameters */
|
|
NULL, /* domainSetSchedulerParameters */
|
|
NULL, /* domainMigratePrepare */
|
|
NULL, /* domainMigratePerform */
|
|
NULL, /* domainMigrateFinish */
|
|
NULL, /* domainBlockStats */
|
|
NULL, /* domainInterfaceStats */
|
|
NULL, /* domainMemoryStats */
|
|
NULL, /* domainBlockPeek */
|
|
NULL, /* domainMemoryPeek */
|
|
NULL, /* domainGetBlockInfo */
|
|
NULL, /* nodeGetCellsFreeMemory */
|
|
NULL, /* getFreeMemory */
|
|
NULL, /* domainEventRegister */
|
|
NULL, /* domainEventDeregister */
|
|
NULL, /* domainMigratePrepare2 */
|
|
NULL, /* domainMigrateFinish2 */
|
|
NULL, /* nodeDeviceDettach */
|
|
NULL, /* nodeDeviceReAttach */
|
|
NULL, /* nodeDeviceReset */
|
|
NULL, /* domainMigratePrepareTunnel */
|
|
openvzIsEncrypted,
|
|
openvzIsSecure,
|
|
openvzDomainIsActive,
|
|
openvzDomainIsPersistent,
|
|
openvzDomainIsUpdated, /* domainIsUpdated */
|
|
NULL, /* cpuCompare */
|
|
NULL, /* cpuBaseline */
|
|
NULL, /* domainGetJobInfo */
|
|
NULL, /* domainAbortJob */
|
|
NULL, /* domainMigrateSetMaxDowntime */
|
|
NULL, /* domainMigrateSetMaxSpeed */
|
|
NULL, /* domainEventRegisterAny */
|
|
NULL, /* domainEventDeregisterAny */
|
|
NULL, /* domainManagedSave */
|
|
NULL, /* domainHasManagedSaveImage */
|
|
NULL, /* domainManagedSaveRemove */
|
|
NULL, /* domainSnapshotCreateXML */
|
|
NULL, /* domainSnapshotGetXMLDesc */
|
|
NULL, /* domainSnapshotNum */
|
|
NULL, /* domainSnapshotListNames */
|
|
NULL, /* domainSnapshotLookupByName */
|
|
NULL, /* domainHasCurrentSnapshot */
|
|
NULL, /* domainSnapshotCurrent */
|
|
NULL, /* domainRevertToSnapshot */
|
|
NULL, /* domainSnapshotDelete */
|
|
NULL, /* qemuDomainMonitorCommand */
|
|
NULL, /* domainOpenConsole */
|
|
NULL, /* domainInjectNMI */
|
|
};
|
|
|
|
int openvzRegister(void) {
|
|
virRegisterDriver(&openvzDriver);
|
|
return 0;
|
|
}
|