static void do_leave(void)
{
int rv;
check_controlled_systems();
rv = fenced_leave();
if (rv < 0)
die("leave: can't communicate with fenced");
if (opt_wait_joinleave)
wait_domain(0);
exit(EXIT_SUCCESS);
}
static void do_join(int argc, char *argv[])
{
int rv, tries = 0;
rv = connect_cman();
if (rv < 0)
die("can't connect to cman");
/* if delay_quorum() or delay_members() fail on any cman/ccs
connection or operation, they call cman_finish() and exit
with failure */
if (opt_delay_quorum)
delay_quorum();
if (opt_delay_members)
delay_members();
cman_finish(ch);
/* This loop deals with the case where fenced is slow enough starting
up that fenced_join fails. Do we also want to add a delay here to
deal with the case where fenced is so slow starting up that it hasn't
locked its lockfile yet, causing check_fenced_running to fail? */
while (1) {
rv = fenced_join();
if (!rv)
break;
check_fenced_running();
tries++;
if (!(tries % 10))
fprintf(stderr, "%s: retrying join\n", prog_name);
sleep(1);
}
if (opt_wait_joinleave)
wait_domain(1);
exit(EXIT_SUCCESS);
}
static int
libvirt_reboot(const char *vm_name, const char *src, uint32_t seqno, void *priv)
{
struct libvirt_info *info = (struct libvirt_info *)priv;
virDomainPtr vdp = NULL, nvdp;
virDomainInfo vdi;
char *domain_desc;
virConnectPtr vcp = NULL;
virDomainPtr (*virt_lookup_fn)(virConnectPtr, const char *);
int ret;
int i;
dbg_printf(5, "ENTER %s %s %u\n", __FUNCTION__, vm_name, seqno);
VALIDATE(info);
if (is_uuid(vm_name))
virt_lookup_fn = virDomainLookupByUUIDString;
else
virt_lookup_fn = virDomainLookupByName;
for (i = 0 ; i < info->vp_count ; i++) {
vdp = virt_lookup_fn(info->vp[i], vm_name);
if (vdp) {
vcp = info->vp[i];
break;
}
}
if (!vdp || !vcp) {
dbg_printf(2,
"[libvirt:REBOOT] Nothing to do - domain %s does not exist\n",
vm_name);
return 1;
}
if (virDomainGetInfo(vdp, &vdi) == 0 && vdi.state == VIR_DOMAIN_SHUTOFF) {
dbg_printf(2, "[libvirt:REBOOT] Nothing to do - domain %s is off\n",
vm_name);
virDomainFree(vdp);
return 0;
}
syslog(LOG_NOTICE, "Rebooting domain %s\n", vm_name);
dbg_printf(5, "[libvirt:REBOOT] Rebooting domain %s...\n", vm_name);
domain_desc = virDomainGetXMLDesc(vdp, 0);
if (!domain_desc) {
dbg_printf(5, "[libvirt:REBOOT] Failed getting domain description "
"from libvirt for %s...\n", vm_name);
}
dbg_printf(2, "[libvirt:REBOOT] Calling virDomainDestroy(%p) for %s\n",
vdp, vm_name);
ret = virDomainDestroy(vdp);
if (ret < 0) {
dbg_printf(2,
"[libvirt:REBOOT] virDomainDestroy() failed for %s: %d/%d\n",
vm_name, ret, errno);
if (domain_desc)
free(domain_desc);
virDomainFree(vdp);
return 1;
}
ret = wait_domain(vm_name, vcp, 15);
if (ret) {
syslog(LOG_NOTICE, "Domain %s still exists; fencing failed\n", vm_name);
dbg_printf(2,
"[libvirt:REBOOT] Domain %s still exists; fencing failed\n",
vm_name);
if (domain_desc)
free(domain_desc);
virDomainFree(vdp);
return 1;
}
if (!domain_desc)
return 0;
/* 'on' is not a failure */
ret = 0;
dbg_printf(3, "[[ XML Domain Info ]]\n");
dbg_printf(3, "%s\n[[ XML END ]]\n", domain_desc);
dbg_printf(2, "[libvirt:REBOOT] Calling virDomainCreateLinux() for %s\n",
vm_name);
nvdp = virDomainCreateLinux(vcp, domain_desc, 0);
if (nvdp == NULL) {
/* More recent versions of libvirt or perhaps the
* KVM back-end do not let you create a domain from
* XML if there is already a defined domain description
* with the same name that it knows about. You must
* then call virDomainCreate() */
dbg_printf(2,
"[libvirt:REBOOT] virDomainCreateLinux() failed for %s; "
"Trying virDomainCreate()\n",
vm_name);
if (virDomainCreate(vdp) < 0) {
syslog(LOG_NOTICE, "Could not restart %s\n", vm_name);
dbg_printf(1, "[libvirt:REBOOT] Failed to recreate guest %s!\n",
vm_name);
}
}
free(domain_desc);
virDomainFree(vdp);
return ret;
}
static int
libvirt_reboot(const char *vm_name, const char *src,
uint32_t seqno, void *priv)
{
struct libvirt_info *info = (struct libvirt_info *)priv;
virDomainPtr vdp, nvdp;
virDomainInfo vdi;
char *domain_desc;
int ret;
//uuid_unparse(vm_uuid, uu_string);
dbg_printf(5, "%s %s\n", __FUNCTION__, vm_name);
VALIDATE(info);
if (is_uuid(vm_name)) {
vdp = virDomainLookupByUUIDString(info->vp,
(const char *)vm_name);
} else {
vdp = virDomainLookupByName(info->vp, vm_name);
}
if (!vdp) {
dbg_printf(2, "[libvirt:REBOOT] Nothing to "
"do - domain does not exist\n");
return 1;
}
if (((virDomainGetInfo(vdp, &vdi) == 0) &&
(vdi.state == VIR_DOMAIN_SHUTOFF))) {
dbg_printf(2, "[libvirt:REBOOT] Nothing to "
"do - domain is off\n");
virDomainFree(vdp);
return 0;
}
syslog(LOG_NOTICE, "Rebooting domain %s\n", vm_name);
printf("Rebooting domain %s...\n", vm_name);
domain_desc = virDomainGetXMLDesc(vdp, 0);
if (!domain_desc) {
printf("Failed getting domain description from "
"libvirt\n");
}
dbg_printf(2, "[REBOOT] Calling virDomainDestroy(%p)\n", vdp);
ret = virDomainDestroy(vdp);
if (ret < 0) {
printf("virDomainDestroy() failed: %d/%d\n", ret, errno);
free(domain_desc);
virDomainFree(vdp);
return 1;
}
ret = wait_domain(vm_name, info->vp, 15);
if (ret) {
syslog(LOG_NOTICE, "Domain %s still exists; fencing failed\n",
vm_name);
printf("Domain %s still exists; fencing failed\n", vm_name);
if (domain_desc)
free(domain_desc);
return 1;
}
if (!domain_desc)
return 0;
/* 'on' is not a failure */
ret = 0;
dbg_printf(3, "[[ XML Domain Info ]]\n");
dbg_printf(3, "%s\n[[ XML END ]]\n", domain_desc);
dbg_printf(2, "Calling virDomainCreateLinux()...\n");
nvdp = virDomainCreateLinux(info->vp, domain_desc, 0);
if (nvdp == NULL) {
/* More recent versions of libvirt or perhaps the
* KVM back-end do not let you create a domain from
* XML if there is already a defined domain description
* with the same name that it knows about. You must
* then call virDomainCreate() */
dbg_printf(2, "Failed; Trying virDomainCreate()...\n");
if (virDomainCreate(vdp) < 0) {
syslog(LOG_NOTICE,
"Could not restart %s\n",
vm_name);
dbg_printf(1, "Failed to recreate guest"
" %s!\n", vm_name);
}
}
free(domain_desc);
return ret;
}
