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* src/openvz_conf.c src/openvz_conf.h src/openvz_driver.c

Browse Source 
src/openvz_driver.h: Applied patch from Shuveb Hussain and Anoop
  Cyriac to extent OpenVZ driver capabilities, especially Create().
Daniel
This commit is contained in:
Daniel Veillard 2007-09-03 15:37:07 +00:00
parent 3c999f7ff4
commit b36902c37a
5 changed files with 680 additions and 115 deletions
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6
ChangeLog
View File

@ -1,3 +1,9 @@
Mon Sep 3 17:35:15 CEST 2007 Daniel Veillard <veillard@redhat.com>
* src/openvz_conf.c src/openvz_conf.h src/openvz_driver.c
src/openvz_driver.h: Applied patch from Shuveb Hussain and Anoop
Cyriac to extent OpenVZ driver capabilities, especially Create().
Thu Aug 30 15:11:44 CEST 2007 Daniel Veillard <veillard@redhat.com>
* src/buf.c: applied patch from Masayuki Sunou fixing a loop

392
src/openvz_conf.c
View File

@ -3,6 +3,7 @@
*
* Copyright (C) 2006, 2007 Binary Karma
* Copyright (C) 2006 Shuveb Hussain
* Copyright (C) 2007 Anoop Joe Cyriac
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -18,7 +19,10 @@
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Shuveb Hussain <shuveb@binarykarma.com>
* Authors:
* Shuveb Hussain <shuveb@binarykarma.com>
* Anoop Joe Cyriac <anoop@binarykarma.com>
*
*/
#ifdef WITH_OPENVZ
@ -31,6 +35,10 @@
#include <dirent.h>
#include <strings.h>
#include <time.h>
#include <sys/stat.h>
#include <unistd.h>
#include <limits.h>
#include <errno.h>
#include <libxml/parser.h>
#include <libxml/tree.h>
@ -39,11 +47,21 @@
#include <libvirt/virterror.h>
#include "openvz_conf.h"
#include "openvz_driver.h"
#include "openvz_conf.h"
#include "uuid.h"
#include "buf.h"
#include <string.h>
static char *openvzLocateConfDir(void);
static void error (virConnectPtr conn, virErrorNumber code, const char *info);
static struct openvz_vm_def *openvzParseXML(virConnectPtr conn, xmlDocPtr xml);
static int openvzGetVPSUUID(int vpsid, char *uuidstr);
static int openvzSetUUID(int vpsid);
static struct openvz_vm *openvzLoadConfig(struct openvz_driver *driver,
const char *path,
const char *xmlStr);
/* For errors internal to this library. */
static void
@ -98,30 +116,172 @@ struct openvz_vm
return NULL;
}
/* Free all memory associated with a struct openvz_vm object */
void
openvzFreeVMDef(struct openvz_vm_def *def) {
struct ovz_quota *quota = def->fs.quota;
struct ovz_ip *ip = def->net.ips;
struct ovz_ns *ns = def->net.ns;
int
strtoI(char *str)
{
int base = 10;
char *endptr;
int val;
while (quota) {
struct ovz_quota *prev = quota;
quota = quota->next;
free(prev);
val = (int) strtol(str, &endptr, base);
/* Check for various possible errors */
if ((endptr == str) /* "No digits were found" */
||((*endptr != '\0')
&& (*endptr != ' ')) /*"Name contain characters other than integers" */ )
return 0;
return val;
}
void
openvzRemoveInactiveVM(struct openvz_driver *driver, struct openvz_vm *vm)
{
driver->num_inactive--;
openvzFreeVM(driver, vm, 1);
}
/* Free all memory associated with a openvz_vm_def structure */
void
openvzFreeVMDef(struct openvz_vm_def *def)
{
if (def) {
struct ovz_quota *quota = def->fs.quota;
struct ovz_ip *ip = def->net.ips;
struct ovz_ns *ns = def->net.ns;
while (quota) {
struct ovz_quota *prev = quota;
quota = quota->next;
free(prev);
}
while (ip) {
struct ovz_ip *prev = ip;
ip = ip->next;
free(prev);
}
while (ns) {
struct ovz_ns *prev = ns;
ns = ns->next;
free(prev);
}
free(def);
def = NULL;
}
while (ip) {
struct ovz_ip *prev = ip;
ip = ip->next;
free(prev);
}
/* Free all memory associated with a openvz_vm structure
* @checkCallee == 0 then openvzFreeDriver() is callee else some other function
*/
void
openvzFreeVM(struct openvz_driver *driver, struct openvz_vm *vm,
int checkCallee)
{
struct openvz_vm *vms;
if (!vm && !driver)
return;
vms = driver->vms;
if (checkCallee) {
if (vms == vm)
driver->vms = vm->next;
else {
while (vms) {
struct openvz_vm *prev = vms;
vms = vms->next;
if (vms == vm) {
prev->next = vms->next;
break;
}
}
}
}
while (ns) {
struct ovz_ns *prev = ns;
ns = ns->next;
free(prev);
if (vms) {
openvzFreeVMDef(vm->vmdef);
free(vm);
vm = NULL;
}
}
/* Free all memory associated with a openvz_driver structure */
void
openvzFreeDriver(struct openvz_driver *driver)
{
struct openvz_vm *next;
if (!driver)
return;
if (driver->vms)
for(next = driver->vms->next; driver->vms; driver->vms = next)
openvzFreeVM(driver, driver->vms, 0);
free(driver);
driver = NULL;
}
struct openvz_vm *
openvzAssignVMDef(virConnectPtr conn,
struct openvz_driver *driver, struct openvz_vm_def *def)
{
struct openvz_vm *vm = NULL;
if (!driver || !def)
return NULL;
if ((vm = openvzFindVMByName(driver, def->name))) {
if (!openvzIsActiveVM(vm)) {
openvzFreeVMDef(vm->vmdef);
vm->vmdef = def;
}
else
{
openvzLog(OPENVZ_ERR, "Error already an active OPENVZ VM having id '%s'",
def->name);
openvzFreeVMDef(def);
return NULL; /* can't redefine an active domain */
}
return vm;
}
free(def);
if (!(vm = calloc(1, sizeof(struct openvz_vm)))) {
openvzFreeVMDef(def);
error(conn, VIR_ERR_NO_MEMORY, "vm");
return NULL;
}
vm->vpsid = -1; /* -1 needed for to represent inactiveness of domain before 'start' */
vm->status = VIR_DOMAIN_SHUTOFF;
vm->vmdef = def;
vm->next = driver->vms;
driver->vms = vm;
driver->num_inactive++;
return vm;
}
struct openvz_vm_def
*openvzParseVMDef(virConnectPtr conn,
const char *xmlStr, const char *displayName)
{
xmlDocPtr xml;
struct openvz_vm_def *def = NULL;
xml = xmlReadDoc(BAD_CAST xmlStr, displayName ? displayName : "domain.xml", NULL,
XML_PARSE_NOENT | XML_PARSE_NONET | XML_PARSE_NOERROR | XML_PARSE_NOWARNING);
if (!xml) {
error(conn, VIR_ERR_XML_ERROR, NULL);
return NULL;
}
def = openvzParseXML(conn, xml);
xmlFreeDoc(xml);
return def;
}
/*
@ -136,6 +296,8 @@ static struct openvz_vm_def
xmlXPathContextPtr ctxt = NULL;
xmlXPathObjectPtr obj = NULL;
struct openvz_vm_def *def;
struct ovz_ip *ovzIp;
struct ovz_ns *ovzNs;
if (!(def = calloc(1, sizeof(struct openvz_vm_def)))) {
error(conn, VIR_ERR_NO_MEMORY, "xmlXPathContext");
@ -143,6 +305,7 @@ static struct openvz_vm_def
}
/* Prepare parser / xpath context */
root = xmlDocGetRootElement(xml);
if ((root == NULL) || (!xmlStrEqual(root->name, BAD_CAST "domain"))) {
error(conn, VIR_ERR_INTERNAL_ERROR, "incorrect root element");
@ -155,8 +318,7 @@ static struct openvz_vm_def
goto bail_out;
}
/* Find out what type of QEMU virtualization to use */
/* Find out what type of OPENVZ virtualization to use */
if (!(prop = xmlGetProp(root, BAD_CAST "type"))) {
error(conn, VIR_ERR_INTERNAL_ERROR, "missing domain type attribute");
goto bail_out;
@ -171,16 +333,19 @@ static struct openvz_vm_def
/* Extract domain name */
obj = xmlXPathEval(BAD_CAST "string(/domain/name[1])", ctxt);
if ((obj == NULL) || (obj->type != XPATH_NUMBER) ||
if ((obj == NULL) || (obj->type != XPATH_STRING) ||
(obj->stringval == NULL) || (obj->stringval[0] == 0)) {
error(conn, VIR_ERR_INTERNAL_ERROR,"invalid domain name");
goto bail_out;
}
if (0/* check if VPS ID is < 101 */) {
error(conn, VIR_ERR_INTERNAL_ERROR, "VPS ID is less than 101");
/* rejecting VPS ID <= OPENVZ_RSRV_VM_LIMIT for they are reserved */
if (strtoI(BAD_CAST obj->stringval) <= OPENVZ_RSRV_VM_LIMIT) {
error(conn, VIR_ERR_INTERNAL_ERROR,
"VPS ID Error (must be an integer greater than 100");
goto bail_out;
}
strcpy(def->name, (const char *)obj->stringval);
strncpy(def->name, (const char *) obj->stringval, OPENVZ_NAME_MAX);
xmlXPathFreeObject(obj);
/* Extract domain uuid */
@ -188,9 +353,9 @@ static struct openvz_vm_def
if ((obj == NULL) || (obj->type != XPATH_STRING) ||
(obj->stringval == NULL) || (obj->stringval[0] == 0)) {
int err;
if ((err = virUUIDGenerate(def->uuid))) {
error(conn, VIR_ERR_INTERNAL_ERROR,
"Failed to generate UUID");
error(conn, VIR_ERR_INTERNAL_ERROR, "Failed to generate UUID");
goto bail_out;
}
} else if (virUUIDParse((const char *)obj->stringval, def->uuid) < 0) {
@ -200,21 +365,133 @@ static struct openvz_vm_def
xmlXPathFreeObject(obj);
/* Extract filesystem info */
obj = xmlXPathEval(BAD_CAST "string(/domain/filesystem/template[1])", ctxt);
if ((obj == NULL) || (obj->type != XPATH_STRING) ||
(obj->stringval == NULL) || (obj->stringval[0] == 0)) {
obj = xmlXPathEval(BAD_CAST "string(/domain/container/filesystem/template[1])", ctxt);
if ((obj == NULL) || (obj->type != XPATH_STRING) || (obj->stringval == NULL)
|| (obj->stringval[0] == 0)) {
error(conn, VIR_ERR_OS_TYPE, NULL);
goto bail_out;
}
strcpy(def->fs.tmpl, (const char *)obj->stringval);
strncpy(def->fs.tmpl, (const char *) obj->stringval, OPENVZ_TMPL_MAX);
xmlXPathFreeObject(obj);
/* TODO Add quota processing here */
/* TODO analysis of the network devices */
xmlXPathFreeContext(ctxt);
/* Extract network */
/* Extract ipaddress */
obj = xmlXPathEval(BAD_CAST"string(/domain/container/network/ipaddress[1])", ctxt);
if ((obj == NULL) || (obj->type != XPATH_STRING) || (obj->stringval == NULL)
|| (obj->stringval[0] == 0)) {
openvzLog(OPENVZ_WARN, "No IP address in the given xml config file '%s'",
xml->name);
}
if (xmlStrlen(obj->stringval) >= (OPENVZ_IP_MAX)) {
char errorMessage[OPENVZ_MAX_ERROR_LEN];
snprintf(errorMessage, OPENVZ_MAX_ERROR_LEN - 1, "%s", "ipaddress length too long");
error(conn, VIR_ERR_INTERNAL_ERROR, errorMessage);
goto bail_out;
}
if (!(ovzIp = calloc(1, sizeof(struct ovz_ip)))) {
openvzLog(OPENVZ_ERR, "Failed to Create Memory for 'ovz_ip' structure");
goto bail_out;
}
strncpy(ovzIp->ip, (const char *) obj->stringval, OPENVZ_IP_MAX);
def->net.ips = ovzIp;
xmlXPathFreeObject(obj);
/* Extract netmask */
obj = xmlXPathEval(BAD_CAST "string(/domain/container/network/netmask[1])", ctxt);
if ((obj == NULL) || (obj->type != XPATH_STRING)
|| (obj->stringval == NULL) || (obj->stringval[0] == 0))
openvzLog(OPENVZ_WARN, "No Netmask address in the given xml config file '%s'",
xml->name);
if (strlen((const char *) obj->stringval) >= (OPENVZ_IP_MAX)) {
char errorMessage[OPENVZ_MAX_ERROR_LEN];
snprintf(errorMessage, OPENVZ_MAX_ERROR_LEN - 1, "%s", "netmask length too long");
error(conn, VIR_ERR_INTERNAL_ERROR, errorMessage);
goto bail_out;
}
strncpy(def->net.ips->netmask, (const char *) obj->stringval, OPENVZ_IP_MAX);
xmlXPathFreeObject(obj);
/* Extract hostname */
obj = xmlXPathEval(BAD_CAST "string(/domain/container/network/hostname[1])", ctxt);
if ((obj == NULL) || (obj->type != XPATH_STRING) || (obj->stringval == NULL)
|| (obj->stringval[0] == 0))
openvzLog(OPENVZ_WARN, "No hostname in the given xml config file '%s'", xml->name);
if (strlen((const char *) obj->stringval) >= (OPENVZ_HOSTNAME_MAX - 1)) {
char errorMessage[OPENVZ_MAX_ERROR_LEN];
snprintf(errorMessage, OPENVZ_MAX_ERROR_LEN - 1, "%s", "hostname length too long");
error(conn, VIR_ERR_INTERNAL_ERROR, errorMessage);
goto bail_out;
}
strncpy(def->net.hostname, (const char *) obj->stringval, OPENVZ_HOSTNAME_MAX - 1);
xmlXPathFreeObject(obj);
/* Extract gateway */
obj = xmlXPathEval(BAD_CAST"string(/domain/container/network/gateway[1])", ctxt);
if ((obj == NULL) || (obj->type != XPATH_STRING) || (obj->stringval == NULL)
|| (obj->stringval[0] == 0))
openvzLog(OPENVZ_WARN, "No Gateway address in the given xml config file '%s'",
xml->name);
if (strlen((const char *) obj->stringval) >= (OPENVZ_IP_MAX)) {
char errorMessage[OPENVZ_MAX_ERROR_LEN];
snprintf(errorMessage, OPENVZ_MAX_ERROR_LEN - 1, "%s", "gateway length too long");
error(conn, VIR_ERR_INTERNAL_ERROR, errorMessage);
goto bail_out;
}
strncpy(def->net.def_gw, (const char *) obj->stringval, OPENVZ_IP_MAX);
xmlXPathFreeObject(obj);
/* Extract nameserver */
obj = xmlXPathEval(BAD_CAST "string(/domain/container/network/nameserver[1])", ctxt);
if ((obj == NULL) || (obj->type != XPATH_STRING) || (obj->stringval == NULL)
|| (obj->stringval[0] == 0))
openvzLog(OPENVZ_WARN, "No Nameserver address inthe given xml config file '%s'",
xml->name);
if (strlen((const char *) obj->stringval) >= (OPENVZ_IP_MAX)) {
char errorMessage[OPENVZ_MAX_ERROR_LEN];
snprintf(errorMessage, OPENVZ_MAX_ERROR_LEN - 1, "%s", "nameserver length too long");
error(conn, VIR_ERR_INTERNAL_ERROR, errorMessage);
goto bail_out;
}
if (!(ovzNs = calloc(1, sizeof(struct ovz_ns)))) {
openvzLog(OPENVZ_ERR, "Failed to Create Memory for 'ovz_ns' structure");
goto bail_out;
}
strncpy(ovzNs->ip, (const char *) obj->stringval, OPENVZ_IP_MAX);
def->net.ns = ovzNs;
xmlXPathFreeObject(obj);
/* Extract profile */
obj = xmlXPathEval(BAD_CAST "string(/domain/container/profile[1])", ctxt);
if ((obj == NULL) || (obj->type != XPATH_STRING) || (obj->stringval == NULL)
|| (obj->stringval[0] == 0)) {
error(conn, VIR_ERR_INTERNAL_ERROR, NULL);
goto bail_out;
}
if (strlen((const char *) obj->stringval) >= (OPENVZ_PROFILE_MAX - 1)) {
char errorMessage[OPENVZ_MAX_ERROR_LEN];
snprintf(errorMessage, OPENVZ_MAX_ERROR_LEN - 1, "%s", "profile length too long");
error(conn, VIR_ERR_INTERNAL_ERROR, errorMessage);
goto bail_out;
}
strncpy(def->profile, (const char *) obj->stringval, OPENVZ_PROFILE_MAX - 1);
xmlXPathFreeObject(obj);
xmlXPathFreeContext(ctxt);
return def;
bail_out:
@ -225,30 +502,10 @@ static struct openvz_vm_def
if (ctxt)
xmlXPathFreeContext(ctxt);
openvzFreeVMDef(def);
return NULL;
}
struct openvz_vm_def *
openvzParseVMDef(virConnectPtr conn,
const char *xmlStr,
const char *displayName) {
xmlDocPtr xml;
struct openvz_vm_def *def = NULL;
if (!(xml = xmlReadDoc(BAD_CAST xmlStr, displayName ? displayName : "domain.xml", NULL,
XML_PARSE_NOENT | XML_PARSE_NONET |
XML_PARSE_NOERROR | XML_PARSE_NOWARNING))) {
error(conn, VIR_ERR_XML_ERROR, NULL);
return NULL;
}
def = openvzParseXML(conn, xml);
xmlFreeDoc(xml);
return def;
}
struct openvz_vm *
openvzGetVPSInfo(virConnectPtr conn) {
FILE *fp;
@ -271,9 +528,9 @@ openvzGetVPSInfo(virConnectPtr conn) {
}
pnext = &vm;
while(!feof(fp)) {
*pnext = malloc(sizeof(struct openvz_vm));
*pnext = calloc(1, sizeof(struct openvz_vm));
if(!*pnext) {
error(conn, VIR_ERR_INTERNAL_ERROR, "malloc failed");
error(conn, VIR_ERR_INTERNAL_ERROR, "calloc failed");
return NULL;
}
@ -293,9 +550,9 @@ openvzGetVPSInfo(virConnectPtr conn) {
thought this doesn't make sense for OpenVZ */
}
vmdef = malloc(sizeof(struct openvz_vm_def));
vmdef = calloc(1, sizeof(struct openvz_vm_def));
if(!vmdef) {
error(conn, VIR_ERR_INTERNAL_ERROR, "malloc failed");
error(conn, VIR_ERR_INTERNAL_ERROR, "calloc failed");
return NULL;
}
@ -356,11 +613,11 @@ openvz_readline(int fd, char *ptr, int maxlen)
}
static int
openvzGetVPSUUID(int vpsid, char *uuidbuf)
openvzGetVPSUUID(int vpsid, char *uuidstr)
{
char conf_file[PATH_MAX];
char line[1024];
char uuid[1024];
char uuidbuf[1024];
char iden[1024];
char *conf_dir;
int fd, ret;
@ -379,13 +636,13 @@ openvzGetVPSUUID(int vpsid, char *uuidbuf)
return -1;
if(ret == 0) { /* EoF, UUID was not found */
uuidbuf[0] = (char)NULL;
uuidstr[0] = 0;
break;
}
sscanf(line, "%s %s\n", iden, uuid);
sscanf(line, "%s %s\n", iden, uuidbuf);
if(!strcmp(iden, "#UUID:")) {
strncpy(uuidbuf, uuid, VIR_UUID_STRING_BUFLEN);
strncpy(uuidstr, uuidbuf, VIR_UUID_STRING_BUFLEN);
break;
}
}
@ -413,17 +670,17 @@ openvzSetUUID(int vpsid)
if(fd == -1)
return -1;
ret = openvzGetVPSUUID(vpsid, uuid);
ret = openvzGetVPSUUID(vpsid, uuidstr);
if(ret == -1)
return -1;
if(uuid[0] == (int)NULL) {
if(uuidstr[0] == 0) {
virUUIDGenerate(uuid);
virUUIDFormat(uuid, uuidstr);
lseek(fd, 0, SEEK_END);
write(fd, "\n#UUID: ", 8);
write(fd, uuid, strlen(uuid));
write(fd, uuidstr, strlen(uuidstr));
write(fd, "\n", 1);
close(fd);
}
@ -467,4 +724,3 @@ int openvzAssignUUIDs(void)
}
#endif

38
src/openvz_conf.h
View File

@ -3,6 +3,7 @@
*
* Copyright (C) 2006, 2007 Binary Karma.
* Copyright (C) 2006 Shuveb Hussain
* Copyright (C) 2007 Anoop Joe Cyriac
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -18,7 +19,10 @@
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Shuveb Hussain <shuveb@binarykarma.com>
* Authors:
* Shuveb Hussain <shuveb@binarykarma.com>
* Anoop Joe Cyriac <anoop@binarykarma.com>
*
*/
#ifndef OPENVZ_CONF_H
@ -26,12 +30,19 @@
#include "openvz_driver.h"
enum { OPENVZ_WARN, OPENVZ_ERR };
#define OPENVZ_NAME_MAX 8
#define OPENVZ_TMPL_MAX 256
#define OPENVZ_UNAME_MAX 32
#define OPENVZ_IP_MAX 16
#define OPENVZ_HOSTNAME_MAX 256
#define OPENVZ_PROFILE_MAX 256
#define OPENVZ_MAX_ERROR_LEN 1024
#define OPENVZ_MAX_XML_LEN 4096
#define OPENVZ_MAX_QUOTA 8
#define OPENVZ_MAX_XPathEval_LEN 256
#define OPENVZ_RSRV_VM_LIMIT 100
enum openvz_quota{
VM_LEVEL = 0,
@ -93,21 +104,30 @@ struct openvz_vm {
struct openvz_vm *next;
};
static char *openvzLocateConfDir(void);
static inline int
openvzIsActiveVM(struct openvz_vm *vm)
{
return vm->vpsid != -1;
}
int openvz_readline(int fd, char *ptr, int maxlen);
static void error (virConnectPtr conn, virErrorNumber code, const char *info);
struct openvz_vm *openvzFindVMByID(const struct openvz_driver *driver, int id);
struct openvz_vm *openvzFindVMByUUID(const struct openvz_driver *driver,
const unsigned char *uuid);
struct openvz_vm *openvzFindVMByName(const struct openvz_driver *driver,
const char *name);
void openvzFreeVMDef(struct openvz_vm_def *def);
static struct openvz_vm_def *openvzParseXML(virConnectPtr conn, xmlDocPtr xml);
struct openvz_vm *openvzFindVMByName(const struct openvz_driver *driver, const char *name);
struct openvz_vm_def *openvzParseVMDef(virConnectPtr conn, const char *xmlStr,
const char *displayName);
struct openvz_vm *openvzAssignVMDef(virConnectPtr conn, struct openvz_driver *driver,
struct openvz_vm_def *def);
struct openvz_vm *openvzGetVPSInfo(virConnectPtr conn);
void openvzGenerateUUID(unsigned char *uuid);
static int openvzGetVPSUUID(int vpsid, char *uuidbuf);
static int openvzSetUUID(int vpsid);
int openvzAssignUUIDs(void);
void openvzRemoveInactiveVM(struct openvz_driver *driver, struct openvz_vm *vm);
void openvzFreeDriver(struct openvz_driver *driver);
void openvzFreeVM(struct openvz_driver *driver, struct openvz_vm *vm, int checkCallee);
void openvzFreeVMDef(struct openvz_vm_def *def);
int strtoI(char *str);
#endif /* OPENVZ_CONF_H */

343
src/openvz_driver.c
View File

@ -3,6 +3,7 @@
*
* Copyright (C) 2006, 2007 Binary Karma
* Copyright (C) 2006 Shuveb Hussain
* Copyright (C) 2007 Anoop Joe Cyriac
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -18,7 +19,10 @@
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Shuveb Hussain <shuveb@binarykarma.com>
* Authors:
* Shuveb Hussain <shuveb@binarykarma.com>
* Anoop Joe Cyriac <anoop@binarykarma.com>
*
*/
#ifdef WITH_OPENVZ
@ -50,15 +54,16 @@
#include <libvirt/virterror.h>
#include "openvz_driver.h"
#include "event.h"
#include "buf.h"
#include "util.h"
#include "openvz_driver.h"
#include "openvz_conf.h"
#include "nodeinfo.h"
#define openvzLog(level, msg...) fprintf(stderr, msg)
#define OPENVZ_MAX_ARG 28
#define CMDBUF_LEN 1488
#define CMDOP_LEN 288
static virDomainPtr openvzDomainLookupByID(virConnectPtr conn, int id);
static char *openvzGetOSType(virDomainPtr dom);
@ -71,6 +76,7 @@ static int openvzDomainReboot(virDomainPtr dom, unsigned int flags);
static int openvzDomainCreate(virDomainPtr dom);
static virDrvOpenStatus openvzOpen(virConnectPtr conn, const char *name,
int flags ATTRIBUTE_UNUSED);
static int openvzClose(virConnectPtr conn);
static const char *openvzGetType(virConnectPtr conn ATTRIBUTE_UNUSED);
static int openvzListDomains(virConnectPtr conn, int *ids, int nids);
@ -82,10 +88,49 @@ static int openvzShutdown(void);
static int openvzReload(void);
static int openvzActive(void);
static int openvzCloseNetwork(virConnectPtr conn);
static virDrvOpenStatus openvzOpenNetwork(virConnectPtr conn, const char *name ATTRIBUTE_UNUSED,
int flags ATTRIBUTE_UNUSED);
static virDrvOpenStatus openvzOpenNetwork(virConnectPtr conn,
const char *name ATTRIBUTE_UNUSED, int flags ATTRIBUTE_UNUSED);
static virDomainPtr openvzDomainDefineXML(virConnectPtr conn, const char *xml);
static virDomainPtr openvzDomainCreateLinux(virConnectPtr conn, const char *xml,
unsigned int flags ATTRIBUTE_UNUSED);
static int openvzDomainUndefine(virDomainPtr dom);
static int convCmdbufExec(char cmdbuf[], char *cmdExec[]);
static void cmdExecFree(char *cmdExec[]);
struct openvz_driver ovz_driver;
static int convCmdbufExec(char cmdbuf[], char *cmdExec[])
{
int i=0, limit = OPENVZ_MAX_ARG - 1;
char cmdWord[CMDOP_LEN];
while(*cmdbuf)
{
if(i >= limit)
{
cmdExec[i] = NULL;
return -1;
}
sscanf(cmdbuf, "%s", cmdWord);
cmdbuf += strlen(cmdWord);
while(*cmdbuf == ' ') cmdbuf++;
cmdExec[i++] = strdup(cmdWord);
}
cmdExec[i] = NULL;
return i;
}
static void cmdExecFree(char *cmdExec[])
{
int i=-1;
while(cmdExec[++i])
{
free(cmdExec[i]);
cmdExec[i] = NULL;
}
}
/* For errors internal to this library. */
static void
error (virConnectPtr conn, virErrorNumber code, const char *info)
@ -122,7 +167,7 @@ static virDomainPtr openvzDomainLookupByID(virConnectPtr conn,
static char *openvzGetOSType(virDomainPtr dom)
{
/* OpenVZ runs on Linux and runs only Linux */
return strdup("Linux");
return strdup("linux");
}
@ -133,7 +178,7 @@ static virDomainPtr openvzDomainLookupByUUID(virConnectPtr conn,
virDomainPtr dom;
if (!vm) {
error(conn, VIR_ERR_INTERNAL_ERROR, "no domain with matching uuid");
error(conn, VIR_ERR_INVALID_DOMAIN, "no domain with matching uuid");
return NULL;
}
@ -172,6 +217,7 @@ static int openvzDomainGetInfo(virDomainPtr dom,
virDomainInfoPtr info) {
struct openvz_driver *driver = (struct openvz_driver *)dom->conn->privateData;
struct openvz_vm *vm = openvzFindVMByUUID(driver, dom->uuid);
if (!vm) {
error(dom->conn, VIR_ERR_INVALID_DOMAIN, "no domain with matching uuid");
return -1;
@ -188,8 +234,10 @@ static int openvzDomainGetInfo(virDomainPtr dom,
}
static int openvzDomainShutdown(virDomainPtr dom) {
char cmdbuf[1024];
char cmdbuf[CMDBUF_LEN];
int ret;
char *cmdExec[OPENVZ_MAX_ARG];
int pid, outfd, errfd;
struct openvz_driver *driver = (struct openvz_driver *)dom->conn->privateData;
struct openvz_vm *vm = openvzFindVMByID(driver, dom->id);
@ -202,24 +250,36 @@ static int openvzDomainShutdown(virDomainPtr dom) {
error(dom->conn, VIR_ERR_OPERATION_DENIED, "domain is not in running state");
return -1;
}
snprintf(cmdbuf, 1024, VZCTL " stop %d >/dev/null 2>&1", dom->id);
ret = system(cmdbuf);
if(WEXITSTATUS(ret)) {
error(dom->conn, VIR_ERR_OPERATION_FAILED, "could not shutdown domain");
snprintf(cmdbuf, CMDBUF_LEN - 1, VZCTL " stop %d ", dom->id);
if((ret = convCmdbufExec(cmdbuf, cmdExec)) == -1)
{
openvzLog(OPENVZ_ERR, "Error in parsing Options to OPENVZ");
goto bail_out;
}
ret = virExec(dom->conn, (char **)cmdExec, &pid, -1, &outfd, &errfd);
if(ret == -1) {
error(dom->conn, VIR_ERR_INTERNAL_ERROR, "Could not exec " VZLIST);
return -1;
}
vm->vpsid = -1;
vm->status = VIR_DOMAIN_SHUTOFF;
ovz_driver.num_inactive ++;
ovz_driver.num_active --;
bail_out:
cmdExecFree(cmdExec);
return ret;
}
static int openvzDomainReboot(virDomainPtr dom, unsigned int flags) {
char cmdbuf[1024];
char cmdbuf[CMDBUF_LEN];
int ret;
char *cmdExec[OPENVZ_MAX_ARG];
int pid, outfd, errfd;
struct openvz_driver *driver = (struct openvz_driver *)dom->conn->privateData;
struct openvz_vm *vm = openvzFindVMByID(driver, dom->id);
@ -232,22 +292,187 @@ static int openvzDomainReboot(virDomainPtr dom, unsigned int flags) {
error(dom->conn, VIR_ERR_OPERATION_DENIED, "domain is not in running state");
return -1;
}
snprintf(cmdbuf, 1024, VZCTL " restart %d >/dev/null 2>&1", dom->id);
ret = system(cmdbuf);
if(WEXITSTATUS(ret)) {
error(dom->conn, VIR_ERR_OPERATION_FAILED, "could not reboot domain");
snprintf(cmdbuf, CMDBUF_LEN - 1, VZCTL " restart %d ", dom->id);
if((ret = convCmdbufExec(cmdbuf, cmdExec)) == -1)
{
openvzLog(OPENVZ_ERR, "Error in parsing Options to OPENVZ");
goto bail_out1;
}
ret = virExec(dom->conn, (char **)cmdExec, &pid, -1, &outfd, &errfd);
if(ret == -1) {
error(dom->conn, VIR_ERR_INTERNAL_ERROR, "Could not exec " VZLIST);
return -1;
}
bail_out1:
cmdExecFree(cmdExec);
return ret;
}
static int openvzDomainCreate(virDomainPtr dom) {
char cmdbuf[1024];
static virDomainPtr
openvzDomainDefineXML(virConnectPtr conn, const char *xml)
{
struct openvz_driver *driver = (struct openvz_driver *) conn->privateData;
struct openvz_vm_def *vmdef = NULL;
struct openvz_vm *vm = NULL;
virDomainPtr dom;
char cmdbuf[CMDBUF_LEN], cmdOption[CMDOP_LEN], *cmdExec[OPENVZ_MAX_ARG];
int ret, pid, outfd, errfd;
if (!(vmdef = openvzParseVMDef(conn, xml, NULL)))
goto bail_out2;
vm = openvzFindVMByID(driver, strtoI(vmdef->name));
if (vm) {
openvzLog(OPENVZ_ERR, "Already an OPENVZ VM active with the id '%s'",
vmdef->name);
goto bail_out2;
}
if (!(vm = openvzAssignVMDef(conn, driver, vmdef))) {
openvzFreeVMDef(vmdef);
openvzLog(OPENVZ_ERR, "Error creating OPENVZ VM");
}
snprintf(cmdbuf, CMDBUF_LEN - 1, VZCTL " create %s", vmdef->name);
if ((vmdef->fs.tmpl && *(vmdef->fs.tmpl))) {
snprintf(cmdOption, CMDOP_LEN - 1, " --ostemplate %s", vmdef->fs.tmpl);
strcat(cmdbuf, cmdOption);
}
if ((vmdef->profile && *(vmdef->profile))) {
snprintf(cmdOption, CMDOP_LEN - 1, " --config %s", vmdef->profile);
strcat(cmdbuf, cmdOption);
}
if ((vmdef->net.ips->ip && *(vmdef->net.ips->ip))) {
snprintf(cmdOption, CMDOP_LEN - 1, " --ipadd %s", vmdef->net.ips->ip);
strcat(cmdbuf, cmdOption);
}
if ((vmdef->net.hostname && *(vmdef->net.hostname))) {
snprintf(cmdOption, CMDOP_LEN - 1, " --hostname %s", vmdef->net.hostname);
strcat(cmdbuf, cmdOption);
}
if((ret = convCmdbufExec(cmdbuf, cmdExec)) == -1)
{
openvzLog(OPENVZ_ERR, "Error in parsing Options to OPENVZ");
goto bail_out2;
}
ret = virExec(conn, (char **)cmdExec, &pid, -1, &outfd, &errfd);
if(ret == -1) {
error(conn, VIR_ERR_INTERNAL_ERROR, "Could not exec " VZLIST);
goto bail_out2;
}
waitpid(pid, NULL, 0);
cmdExecFree(cmdExec);
dom = virGetDomain(conn, vm->vmdef->name, vm->vmdef->uuid);
if (dom)
dom->id = vm->vpsid;
return dom;
bail_out2:
cmdExecFree(cmdExec);
return NULL;
}
static virDomainPtr
openvzDomainCreateLinux(virConnectPtr conn, const char *xml,
unsigned int flags ATTRIBUTE_UNUSED)
{
struct openvz_vm_def *vmdef = NULL;
struct openvz_vm *vm = NULL;
virDomainPtr dom;
struct openvz_driver *driver = (struct openvz_driver *) conn->privateData;
char cmdbuf[CMDBUF_LEN], cmdOption[CMDOP_LEN], *cmdExec[OPENVZ_MAX_ARG];
int ret, pid, outfd, errfd;
if (!(vmdef = openvzParseVMDef(conn, xml, NULL)))
return NULL;
vm = openvzFindVMByID(driver, strtoI(vmdef->name));
if (vm) {
openvzFreeVMDef(vmdef);
openvzLog(OPENVZ_ERR, "Already an OPENVZ VM defined with the id '%d'",
strtoI(vmdef->name));
return NULL;
}
if (!(vm = openvzAssignVMDef(conn, driver, vmdef))) {
openvzLog(OPENVZ_ERR, "Error creating OPENVZ VM");
return NULL;
}
snprintf(cmdbuf, CMDBUF_LEN - 1, VZCTL " create %s", vmdef->name);
if ((vmdef->fs.tmpl && *(vmdef->fs.tmpl))) {
snprintf(cmdOption, CMDOP_LEN - 1, " --ostemplate %s", vmdef->fs.tmpl);
strcat(cmdbuf, cmdOption);
}
if ((vmdef->profile && *(vmdef->profile))) {
snprintf(cmdOption, CMDOP_LEN - 1, " --config %s", vmdef->profile);
strcat(cmdbuf, cmdOption);
}
if ((vmdef->net.ips->ip && *(vmdef->net.ips->ip))) {
snprintf(cmdOption, CMDOP_LEN - 1, " --ipadd %s", vmdef->net.ips->ip);
strcat(cmdbuf, cmdOption);
}
if ((vmdef->net.hostname && *(vmdef->net.hostname))) {
snprintf(cmdOption, CMDOP_LEN - 1, " --hostname %s", vmdef->net.hostname);
strcat(cmdbuf, cmdOption);
}
if((ret = convCmdbufExec(cmdbuf, cmdExec)) == -1)
{
openvzLog(OPENVZ_ERR, "Error in parsing Options to OPENVZ");
goto bail_out3;
}
ret = virExec(conn, (char **)cmdExec, &pid, -1, &outfd, &errfd);
if(ret == -1) {
error(conn, VIR_ERR_INTERNAL_ERROR, "Could not exec " VZLIST);
return NULL;
}
waitpid(pid, NULL, 0);
cmdExecFree(cmdExec);
snprintf(cmdbuf, CMDBUF_LEN - 1, VZCTL " start %s ", vmdef->name);
if((ret = convCmdbufExec(cmdbuf, cmdExec)) == -1)
{
openvzLog(OPENVZ_ERR, "Error in parsing Options to OPENVZ");
goto bail_out3;
}
ret = virExec(conn, (char **)cmdExec, &pid, -1, &outfd, &errfd);
if(ret == -1) {
error(conn, VIR_ERR_INTERNAL_ERROR, "Could not exec " VZLIST);
return NULL;
}
sscanf(vmdef->name, "%d", &vm->vpsid);
vm->status = VIR_DOMAIN_RUNNING;
ovz_driver.num_inactive--;
ovz_driver.num_active++;
waitpid(pid, NULL, 0);
cmdExecFree(cmdExec);
dom = virGetDomain(conn, vm->vmdef->name, vm->vmdef->uuid);
if (dom)
dom->id = vm->vpsid;
return dom;
bail_out3:
cmdExecFree(cmdExec);
return NULL;
}
static int
openvzDomainCreate(virDomainPtr dom)
{
char cmdbuf[CMDBUF_LEN];
int ret;
char *cmdExec[OPENVZ_MAX_ARG] ;
int pid, outfd, errfd;
struct openvz_driver *driver = (struct openvz_driver *)dom->conn->privateData;
struct openvz_vm *vm = openvzFindVMByID(driver, dom->id);
struct openvz_vm *vm = openvzFindVMByName(driver, dom->name);
struct openvz_vm_def *vmdef;
if (!vm) {
@ -261,20 +486,69 @@ static int openvzDomainCreate(virDomainPtr dom) {
}
vmdef = vm->vmdef;
snprintf(cmdbuf, 1024, VZCTL " start %s >/dev/null 2>&1", vmdef->name);
ret = system(cmdbuf);
if(WEXITSTATUS(ret)) {
error(dom->conn, VIR_ERR_OPERATION_FAILED, "could not start domain");
snprintf(cmdbuf, CMDBUF_LEN - 1, VZCTL " start %s ", vmdef->name);
if((ret = convCmdbufExec(cmdbuf, cmdExec)) == -1)
{
openvzLog(OPENVZ_ERR, "Error in parsing Options to OPENVZ");
goto bail_out4;
}
ret = virExec(dom->conn, (char **)cmdExec, &pid, -1, &outfd, &errfd);
if(ret == -1) {
error(dom->conn, VIR_ERR_INTERNAL_ERROR, "Could not exec " VZLIST);
return -1;
}
sscanf(vmdef->name, "%d", &vm->vpsid);
vm->status = VIR_DOMAIN_RUNNING;
ovz_driver.num_inactive --;
ovz_driver.num_active ++;
waitpid(pid, NULL, 0);
bail_out4:
cmdExecFree(cmdExec);
return ret;
}
static int
openvzDomainUndefine(virDomainPtr dom)
{
char cmdbuf[CMDBUF_LEN], *cmdExec[OPENVZ_MAX_ARG];
int ret, pid, outfd, errfd;
virConnectPtr conn= dom->conn;
struct openvz_driver *driver = (struct openvz_driver *) conn->privateData;
struct openvz_vm *vm = openvzFindVMByUUID(driver, dom->uuid);
if (!vm) {
error(conn, VIR_ERR_INVALID_DOMAIN, "no domain with matching uuid");
return -1;
}
if (openvzIsActiveVM(vm)) {
error(conn, VIR_ERR_INTERNAL_ERROR, "cannot delete active domain");
return -1;
}
snprintf(cmdbuf, CMDBUF_LEN - 1, VZCTL " destroy %s ", vm->vmdef->name);
if((ret = convCmdbufExec(cmdbuf, cmdExec)) == -1)
{
openvzLog(OPENVZ_ERR, "Error in parsing Options to OPENVZ");
goto bail_out5;
}
ret = virExec(conn, (char **)cmdExec, &pid, -1, &outfd, &errfd);
if(ret == -1) {
error(conn, VIR_ERR_INTERNAL_ERROR, "Could not exec " VZLIST);
return -1;
}
waitpid(pid, NULL, 0);
openvzRemoveInactiveVM(driver, vm);
bail_out5:
cmdExecFree(cmdExec);
return ret;
}
static virDrvOpenStatus openvzOpen(virConnectPtr conn,
const char *name,
int flags ATTRIBUTE_UNUSED) {
@ -306,7 +580,6 @@ static int openvzClose(virConnectPtr conn) {
struct openvz_driver *driver = (struct openvz_driver *)conn->privateData;
struct openvz_vm *vm = driver->vms;
while(vm) {
openvzFreeVMDef(vm->vmdef);
@ -328,13 +601,11 @@ static const char *openvzGetType(virConnectPtr conn ATTRIBUTE_UNUSED) {
return strdup("OpenVZ");
}
static int openvzGetNodeInfo(virConnectPtr conn,
virNodeInfoPtr nodeinfo) {
return virNodeInfoPopulate(conn, nodeinfo);
}
static int openvzListDomains(virConnectPtr conn, int *ids, int nids) {
int got = 0;
int veid, pid, outfd, errfd;
@ -370,7 +641,7 @@ static int openvzListDefinedDomains(virConnectPtr conn,
int veid, pid, outfd, errfd, ret;
char vpsname[OPENVZ_NAME_MAX];
char buf[32];
const char *cmd[] = {VZLIST, "-ovpsid", "-H", NULL};
const char *cmd[] = {VZLIST, "-ovpsid", "-H", "-S", NULL};
/* the -S options lists only stopped domains */
ret = virExec(conn, (char **)cmd, &pid, -1, &outfd, &errfd);
@ -391,7 +662,6 @@ static int openvzListDefinedDomains(virConnectPtr conn,
return got;
}
static int openvzNumDefinedDomains(virConnectPtr conn) {
return ovz_driver.num_inactive;
}
@ -427,13 +697,13 @@ static virDrvOpenStatus openvzOpenNetwork(virConnectPtr conn,
return VIR_DRV_OPEN_SUCCESS;
}
static virDriver openvzDriver = {
VIR_DRV_OPENVZ,
"OPENVZ",
LIBVIR_VERSION_NUMBER,
openvzOpen, /* open */
openvzClose, /* close */
NULL, /* supports_feature */
openvzGetType, /* type */
NULL, /* version */
NULL, /* hostname */
@ -443,7 +713,7 @@ static virDriver openvzDriver = {
NULL, /* getCapabilities */
openvzListDomains, /* listDomains */
openvzNumDomains, /* numOfDomains */
NULL, /* domainCreateLinux */
openvzDomainCreateLinux, /* domainCreateLinux */
openvzDomainLookupByID, /* domainLookupByID */
openvzDomainLookupByUUID, /* domainLookupByUUID */
openvzDomainLookupByName, /* domainLookupByName */
@ -468,8 +738,8 @@ static virDriver openvzDriver = {
openvzListDefinedDomains, /* listDomains */
openvzNumDefinedDomains, /* numOfDomains */
openvzDomainCreate, /* domainCreate */
NULL, /* domainDefineXML */
NULL, /* domainUndefine */
openvzDomainDefineXML, /* domainDefineXML */
openvzDomainUndefine, /* domainUndefine */
NULL, /* domainAttachDevice */
NULL, /* domainDetachDevice */
NULL, /* domainGetAutostart */
@ -480,6 +750,7 @@ static virDriver openvzDriver = {
};
static virNetworkDriver openvzNetworkDriver = {
NULL, /* name */
openvzOpenNetwork, /* open */
openvzCloseNetwork, /* close */
NULL, /* numOfNetworks */

16
src/openvz_driver.h
View File

@ -1,8 +1,9 @@
/*
* openvz_driver.h: core driver methods for managing OpenVZ VPSs
*
* Copyright (C) 2006, 2007 Binary Karma.
* Copyright (C) 2006, 2007 Binary Karma
* Copyright (C) 2006 Shuveb Hussain
* Copyright (C) 2007 Anoop Joe Cyriac
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -18,7 +19,10 @@
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Shuveb Hussain <shuveb@binarykarma.com>
* Authors:
* Shuveb Hussain <shuveb@binarykarma.com>
* Anoop Joe Cyriac <anoop@binarykarma.com>
*
*/
@ -39,6 +43,14 @@ struct openvz_driver {
int openvzRegister(void);
#define openvzLog(level, msg...) { if(level == OPENVZ_WARN) \
fprintf(stderr, "\nWARNING: ");\
else \
fprintf(stderr, "\nERROR: ");\
fprintf(stderr, "\n\t");\
fprintf(stderr, msg);\
fprintf(stderr, "\n"); }
#endif