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c87dafbd403f8d44dad5f9eccedc64033596bdbf
xen/tools/libxl/xl_cmdimpl.c
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Ian Jackson 341388ff90 xl: fix memory management of migration_domname_r 
During migration, the domain name from the config file is swapped out
and replaced with a different name (with the "--incoming" suffix),
which we return to the caller.  The memory management arrangements
here were broken.

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
2010-09-14 18:25:15 +01:00

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/*
* Copyright (C) 2009 Citrix Ltd.
* Author Stefano Stabellini <stefano.stabellini@eu.citrix.com>
* Author Vincent Hanquez <vincent.hanquez@eu.citrix.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; version 2.1 only. with the special
* exception on linking described in file LICENSE.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*/
#include "libxl_osdeps.h"
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <time.h>
#include <getopt.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/socket.h>
#include <sys/select.h>
#include <arpa/inet.h>
#include <sys/utsname.h> /* for utsname in xl info */
#include <xenctrl.h>
#include <ctype.h>
#include <inttypes.h>
#include "libxl.h"
#include "libxl_utils.h"
#include "libxlutil.h"
#include "xl.h"
#define CHK_ERRNO( call ) ({ \
int chk_errno = (call); \
if (chk_errno < 0) { \
fprintf(stderr,"xl: fatal error: %s:%d: %s: %s\n", \
__FILE__,__LINE__, strerror(chk_errno), #call); \
exit(-ERROR_FAIL); \
} \
})
#define MUST( call ) ({ \
int must_rc = (call); \
if (must_rc < 0) { \
fprintf(stderr,"xl: fatal error: %s:%d, rc=%d: %s\n", \
__FILE__,__LINE__, must_rc, #call); \
exit(-must_rc); \
} \
})
int logfile = 2;
/* every libxl action in xl uses this same libxl context */
libxl_ctx ctx;
/* when we operate on a domain, it is this one: */
static uint32_t domid;
static const char *common_domname;
static const char savefileheader_magic[32]=
"Xen saved domain, xl format\n \0 \r";
static const char migrate_receiver_banner[]=
"xl migration receiver ready, send binary domain data.\n";
static const char migrate_receiver_ready[]=
"domain received, ready to unpause";
static const char migrate_permission_to_go[]=
"domain is yours, you are cleared to unpause";
static const char migrate_report[]=
"my copy unpause results are as follows";
/* followed by one byte:
* 0: everything went well, domain is running
* next thing is we all exit
* non-0: things went badly
* next thing should be a migrate_permission_to_go
* from target to source
*/
struct save_file_header {
char magic[32]; /* savefileheader_magic */
/* All uint32_ts are in domain's byte order. */
uint32_t byteorder; /* SAVEFILE_BYTEORDER_VALUE */
uint32_t mandatory_flags; /* unknown flags => reject restore */
uint32_t optional_flags; /* unknown flags => reject restore */
uint32_t optional_data_len; /* skip, or skip tail, if not understood */
};
enum action_on_shutdown {
ACTION_DESTROY,
ACTION_RESTART,
ACTION_RESTART_RENAME,
ACTION_PRESERVE,
ACTION_COREDUMP_DESTROY,
ACTION_COREDUMP_RESTART,
};
static char *action_on_shutdown_names[] = {
[ACTION_DESTROY] = "destroy",
[ACTION_RESTART] = "restart",
[ACTION_RESTART_RENAME] = "rename-restart",
[ACTION_PRESERVE] = "preserve",
[ACTION_COREDUMP_DESTROY] = "coredump-destroy",
[ACTION_COREDUMP_RESTART] = "coredump-restart",
};
struct domain_config {
libxl_domain_create_info c_info;
libxl_domain_build_info b_info;
int num_disks, num_vifs, num_vif2s, num_pcidevs, num_vfbs, num_vkbs;
libxl_device_disk *disks;
libxl_device_nic *vifs;
libxl_device_net2 *vif2s;
libxl_device_pci *pcidevs;
libxl_device_vfb *vfbs;
libxl_device_vkb *vkbs;
enum action_on_shutdown on_poweroff;
enum action_on_shutdown on_reboot;
enum action_on_shutdown on_watchdog;
enum action_on_shutdown on_crash;
};
static void free_domain_config(struct domain_config *d_config)
{
int i;
for (i=0; i<d_config->num_disks; i++)
libxl_device_disk_destroy(&d_config->disks[i]);
free(d_config->disks);
for (i=0; i<d_config->num_vifs; i++)
libxl_device_nic_destroy(&d_config->vifs[i]);
free(d_config->vifs);
for (i=0; i<d_config->num_vif2s; i++)
libxl_device_net2_destroy(&d_config->vif2s[i]);
free(d_config->vif2s);
for (i=0; i<d_config->num_pcidevs; i++)
libxl_device_pci_destroy(&d_config->pcidevs[i]);
free(d_config->pcidevs);
for (i=0; i<d_config->num_vfbs; i++)
libxl_device_vfb_destroy(&d_config->vfbs[i]);
free(d_config->vfbs);
for (i=0; i<d_config->num_vkbs; i++)
libxl_device_vkb_destroy(&d_config->vkbs[i]);
free(d_config->vkbs);
libxl_domain_create_info_destroy(&d_config->c_info);
libxl_domain_build_info_destroy(&d_config->b_info);
}
/* Optional data, in order:
* 4 bytes uint32_t config file size
* n bytes config file in Unix text file format
*/
#define SAVEFILE_BYTEORDER_VALUE ((uint32_t)0x01020304UL)
static int qualifier_to_id(const char *p, uint32_t *id_r)
{
int i, alldigit;
alldigit = 1;
for (i = 0; p[i]; i++) {
if (!isdigit((uint8_t)p[i])) {
alldigit = 0;
break;
}
}
if (i > 0 && alldigit) {
*id_r = strtoul(p, NULL, 10);
return 0;
} else {
/* check here if it's a uuid and do proper conversion */
}
return 1;
}
static int domain_qualifier_to_domid(const char *p, uint32_t *domid_r,
int *was_name_r)
{
int was_name;
was_name = qualifier_to_id(p, domid_r);
if (was_name_r) *was_name_r = was_name;
return was_name ? libxl_name_to_domid(&ctx, p, domid_r) : 0;
}
static int pool_qualifier_to_poolid(const char *p, uint32_t *poolid_r,
int *was_name_r)
{
int was_name;
was_name = qualifier_to_id(p, poolid_r);
if (was_name_r) *was_name_r = was_name;
return was_name ? libxl_name_to_poolid(&ctx, p, poolid_r) : 0;
}
static void find_domain(const char *p)
{
int rc, was_name;
rc = domain_qualifier_to_domid(p, &domid, &was_name);
if (rc) {
fprintf(stderr, "%s is an invalid domain identifier (rc=%d)\n", p, rc);
exit(2);
}
common_domname = was_name ? p : libxl_domid_to_name(&ctx, domid);
}
#define LOG(_f, _a...) dolog(__FILE__, __LINE__, __func__, _f "\n", ##_a)
static void dolog(const char *file, int line, const char *func, char *fmt, ...)
__attribute__((format(printf,4,5)));
static void dolog(const char *file, int line, const char *func, char *fmt, ...)
{
va_list ap;
char *s;
int rc;
va_start(ap, fmt);
rc = vasprintf(&s, fmt, ap);
va_end(ap);
if (rc >= 0)
libxl_write_exactly(NULL, logfile, s, rc, NULL, NULL);
}
static void init_create_info(libxl_domain_create_info *c_info)
{
memset(c_info, '\0', sizeof(*c_info));
c_info->xsdata = NULL;
c_info->platformdata = NULL;
c_info->hap = 1;
c_info->hvm = 1;
c_info->oos = 1;
c_info->ssidref = 0;
c_info->poolid = 0;
}
static void init_build_info(libxl_domain_build_info *b_info, libxl_domain_create_info *c_info)
{
memset(b_info, '\0', sizeof(*b_info));
b_info->max_vcpus = 1;
b_info->max_memkb = 32 * 1024;
b_info->target_memkb = b_info->max_memkb;
b_info->disable_migrate = 0;
if (c_info->hvm) {
b_info->shadow_memkb = 0; /* Set later */
b_info->video_memkb = 8 * 1024;
b_info->kernel.path = strdup("hvmloader");
b_info->hvm = 1;
b_info->u.hvm.pae = 1;
b_info->u.hvm.apic = 1;
b_info->u.hvm.acpi = 1;
b_info->u.hvm.nx = 1;
b_info->u.hvm.viridian = 0;
b_info->u.hvm.hpet = 1;
b_info->u.hvm.vpt_align = 1;
b_info->u.hvm.timer_mode = 1;
} else {
b_info->u.pv.slack_memkb = 8 * 1024;
}
}
static void init_dm_info(libxl_device_model_info *dm_info,
libxl_domain_create_info *c_info, libxl_domain_build_info *b_info)
{
memset(dm_info, '\0', sizeof(*dm_info));
libxl_uuid_generate(&dm_info->uuid);
dm_info->dom_name = strdup(c_info->name);
dm_info->device_model = strdup("qemu-dm");
dm_info->videoram = b_info->video_memkb / 1024;
dm_info->apic = b_info->u.hvm.apic;
dm_info->vcpus = b_info->max_vcpus;
dm_info->vcpu_avail = b_info->cur_vcpus;
dm_info->stdvga = 0;
dm_info->vnc = 1;
dm_info->vnclisten = strdup("127.0.0.1");
dm_info->vncdisplay = 0;
dm_info->vncunused = 1;
dm_info->keymap = NULL;
dm_info->sdl = 0;
dm_info->opengl = 0;
dm_info->nographic = 0;
dm_info->serial = NULL;
dm_info->boot = strdup("cda");
dm_info->usb = 0;
dm_info->usbdevice = NULL;
dm_info->xen_platform_pci = 1;
}
static void init_nic_info(libxl_device_nic *nic_info, int devnum)
{
const uint8_t *r;
libxl_uuid uuid;
libxl_uuid_generate(&uuid);
r = libxl_uuid_bytearray(&uuid);
memset(nic_info, '\0', sizeof(*nic_info));
nic_info->backend_domid = 0;
nic_info->domid = 0;
nic_info->devid = devnum;
nic_info->mtu = 1492;
nic_info->model = strdup("e1000");
nic_info->mac[0] = 0x00;
nic_info->mac[1] = 0x16;
nic_info->mac[2] = 0x3e;
nic_info->mac[3] = r[0] & 0x7f;
nic_info->mac[4] = r[1];
nic_info->mac[5] = r[2];
nic_info->ifname = NULL;
nic_info->bridge = strdup("xenbr0");
CHK_ERRNO( asprintf(&nic_info->script, "%s/vif-bridge",
libxl_xen_script_dir_path()) );
nic_info->nictype = NICTYPE_IOEMU;
}
static void init_net2_info(libxl_device_net2 *net2_info, int devnum)
{
const uint8_t *r;
libxl_uuid uuid;
libxl_uuid_generate(&uuid);
r = libxl_uuid_bytearray(&uuid);
memset(net2_info, '\0', sizeof(*net2_info));
net2_info->devid = devnum;
net2_info->front_mac[0] = 0x00;
net2_info->front_mac[1] = 0x16;
net2_info->front_mac[2] = 0x3e;;
net2_info->front_mac[3] = 0x7f & r[0];
net2_info->front_mac[4] = r[1];
net2_info->front_mac[5] = r[2];
net2_info->back_mac[0] = 0x00;
net2_info->back_mac[1] = 0x16;
net2_info->back_mac[2] = 0x3e;
net2_info->back_mac[3] = 0x7f & r[3];
net2_info->back_mac[4] = r[4];
net2_info->back_mac[5] = r[5];
net2_info->back_trusted = 1;
net2_info->filter_mac = 1;
net2_info->max_bypasses = 5;
net2_info->bridge = "xenbr0";
}
static void init_vfb_info(libxl_device_vfb *vfb, int dev_num)
{
memset(vfb, 0x00, sizeof(libxl_device_vfb));
vfb->devid = dev_num;
vfb->vnc = 1;
vfb->vnclisten = "127.0.0.1";
vfb->vncdisplay = 0;
vfb->vncunused = 1;
vfb->keymap = NULL;
vfb->sdl = 0;
vfb->opengl = 0;
}
static void init_vkb_info(libxl_device_vkb *vkb, int dev_num)
{
memset(vkb, 0x00, sizeof(libxl_device_vkb));
vkb->devid = dev_num;
}
static void init_console_info(libxl_device_console *console, int dev_num, libxl_domain_build_state *state)
{
memset(console, 0x00, sizeof(libxl_device_console));
console->devid = dev_num;
console->consback = LIBXL_CONSBACK_XENCONSOLED;
console->output = "pty";
if (state)
console->build_state = state;
}
static void printf_info(int domid,
struct domain_config *d_config,
libxl_device_model_info *dm_info)
{
int i;
libxl_domain_create_info *c_info = &d_config->c_info;
libxl_domain_build_info *b_info = &d_config->b_info;
printf("(domain\n\t(domid %d)\n", domid);
printf("\t(domain_create_info)\n");
printf("\t(hvm %d)\n", c_info->hvm);
printf("\t(hap %d)\n", c_info->hap);
printf("\t(oos %d)\n", c_info->oos);
printf("\t(ssidref %d)\n", c_info->ssidref);
printf("\t(name %s)\n", c_info->name);
printf("\t(uuid " LIBXL_UUID_FMT ")\n", LIBXL_UUID_BYTES(c_info->uuid));
printf("\t(cpupool %s (%d))\n", c_info->poolname, c_info->poolid);
if (c_info->xsdata)
printf("\t(xsdata contains data)\n");
else
printf("\t(xsdata (null))\n");
if (c_info->platformdata)
printf("\t(platformdata contains data)\n");
else
printf("\t(platformdata (null))\n");
printf("\t(domain_build_info)\n");
printf("\t(max_vcpus %d)\n", b_info->max_vcpus);
printf("\t(tsc_mode %d)\n", b_info->tsc_mode);
printf("\t(max_memkb %d)\n", b_info->max_memkb);
printf("\t(target_memkb %d)\n", b_info->target_memkb);
printf("\t(nomigrate %d)\n", b_info->disable_migrate);
if (!c_info->hvm && b_info->u.pv.bootloader) {
printf("\t(bootloader %s)\n", b_info->u.pv.bootloader);
if (b_info->u.pv.bootloader_args)
printf("\t(bootloader_args %s)\n", b_info->u.pv.bootloader_args);
}
printf("\t(image\n");
if (c_info->hvm) {
printf("\t\t(hvm\n");
printf("\t\t\t(loader %s)\n", b_info->kernel.path);
printf("\t\t\t(video_memkb %d)\n", b_info->video_memkb);
printf("\t\t\t(shadow_memkb %d)\n", b_info->shadow_memkb);
printf("\t\t\t(pae %d)\n", b_info->u.hvm.pae);
printf("\t\t\t(apic %d)\n", b_info->u.hvm.apic);
printf("\t\t\t(acpi %d)\n", b_info->u.hvm.acpi);
printf("\t\t\t(nx %d)\n", b_info->u.hvm.nx);
printf("\t\t\t(viridian %d)\n", b_info->u.hvm.viridian);
printf("\t\t\t(hpet %d)\n", b_info->u.hvm.hpet);
printf("\t\t\t(vpt_align %d)\n", b_info->u.hvm.vpt_align);
printf("\t\t\t(timer_mode %d)\n", b_info->u.hvm.timer_mode);
printf("\t\t\t(device_model %s)\n", dm_info->device_model);
printf("\t\t\t(videoram %d)\n", dm_info->videoram);
printf("\t\t\t(stdvga %d)\n", dm_info->stdvga);
printf("\t\t\t(vnc %d)\n", dm_info->vnc);
printf("\t\t\t(vnclisten %s)\n", dm_info->vnclisten);
printf("\t\t\t(vncdisplay %d)\n", dm_info->vncdisplay);
printf("\t\t\t(vncunused %d)\n", dm_info->vncunused);
printf("\t\t\t(keymap %s)\n", dm_info->keymap);
printf("\t\t\t(sdl %d)\n", dm_info->sdl);
printf("\t\t\t(opengl %d)\n", dm_info->opengl);
printf("\t\t\t(nographic %d)\n", dm_info->nographic);
printf("\t\t\t(serial %s)\n", dm_info->serial);
printf("\t\t\t(boot %s)\n", dm_info->boot);
printf("\t\t\t(usb %d)\n", dm_info->usb);
printf("\t\t\t(usbdevice %s)\n", dm_info->usbdevice);
printf("\t\t\t(apic %d)\n", dm_info->apic);
printf("\t\t)\n");
} else {
printf("\t\t(linux %d)\n", b_info->hvm);
printf("\t\t\t(kernel %s)\n", b_info->kernel.path);
printf("\t\t\t(cmdline %s)\n", b_info->u.pv.cmdline);
printf("\t\t\t(ramdisk %s)\n", b_info->u.pv.ramdisk.path);
printf("\t\t)\n");
}
printf("\t)\n");
for (i = 0; i < d_config->num_disks; i++) {
printf("\t(device\n");
printf("\t\t(tap\n");
printf("\t\t\t(backend_domid %d)\n", d_config->disks[i].backend_domid);
printf("\t\t\t(domid %d)\n", d_config->disks[i].domid);
printf("\t\t\t(physpath %s)\n", d_config->disks[i].physpath);
printf("\t\t\t(phystype %d)\n", d_config->disks[i].phystype);
printf("\t\t\t(virtpath %s)\n", d_config->disks[i].virtpath);
printf("\t\t\t(unpluggable %d)\n", d_config->disks[i].unpluggable);
printf("\t\t\t(readwrite %d)\n", d_config->disks[i].readwrite);
printf("\t\t\t(is_cdrom %d)\n", d_config->disks[i].is_cdrom);
printf("\t\t)\n");
printf("\t)\n");
}
for (i = 0; i < d_config->num_vifs; i++) {
printf("\t(device\n");
printf("\t\t(vif\n");
printf("\t\t\t(backend_domid %d)\n", d_config->vifs[i].backend_domid);
printf("\t\t\t(domid %d)\n", d_config->vifs[i].domid);
printf("\t\t\t(devid %d)\n", d_config->vifs[i].devid);
printf("\t\t\t(mtu %d)\n", d_config->vifs[i].mtu);
printf("\t\t\t(model %s)\n", d_config->vifs[i].model);
printf("\t\t\t(mac %02x%02x%02x%02x%02x%02x)\n",
d_config->vifs[i].mac[0], d_config->vifs[i].mac[1],
d_config->vifs[i].mac[2], d_config->vifs[i].mac[3],
d_config->vifs[i].mac[4], d_config->vifs[i].mac[5]);
printf("\t\t)\n");
printf("\t)\n");
}
for (i = 0; i < d_config->num_pcidevs; i++) {
printf("\t(device\n");
printf("\t\t(pci\n");
printf("\t\t\t(pci dev %04x:%02x:%02x.%01x@%02x)\n",
d_config->pcidevs[i].domain, d_config->pcidevs[i].bus,
d_config->pcidevs[i].dev, d_config->pcidevs[i].func,
d_config->pcidevs[i].vdevfn);
printf("\t\t\t(opts msitranslate %d power_mgmt %d)\n",
d_config->pcidevs[i].msitranslate,
d_config->pcidevs[i].power_mgmt);
printf("\t\t)\n");
printf("\t)\n");
}
for (i = 0; i < d_config->num_vfbs; i++) {
printf("\t(device\n");
printf("\t\t(vfb\n");
printf("\t\t\t(backend_domid %d)\n", d_config->vfbs[i].backend_domid);
printf("\t\t\t(domid %d)\n", d_config->vfbs[i].domid);
printf("\t\t\t(devid %d)\n", d_config->vfbs[i].devid);
printf("\t\t\t(vnc %d)\n", d_config->vfbs[i].vnc);
printf("\t\t\t(vnclisten %s)\n", d_config->vfbs[i].vnclisten);
printf("\t\t\t(vncdisplay %d)\n", d_config->vfbs[i].vncdisplay);
printf("\t\t\t(vncunused %d)\n", d_config->vfbs[i].vncunused);
printf("\t\t\t(keymap %s)\n", d_config->vfbs[i].keymap);
printf("\t\t\t(sdl %d)\n", d_config->vfbs[i].sdl);
printf("\t\t\t(opengl %d)\n", d_config->vfbs[i].opengl);
printf("\t\t\t(display %s)\n", d_config->vfbs[i].display);
printf("\t\t\t(xauthority %s)\n", d_config->vfbs[i].xauthority);
printf("\t\t)\n");
printf("\t)\n");
}
printf(")\n");
}
static int parse_action_on_shutdown(const char *buf, enum action_on_shutdown *a)
{
int i;
const char *n;
for (i = 0; i < sizeof(action_on_shutdown_names) / sizeof(action_on_shutdown_names[0]); i++) {
n = action_on_shutdown_names[i];
if (strcmp(buf, n) == 0) {
*a = i;
return 1;
}
}
return 0;
}
static void parse_config_data(const char *configfile_filename_report,
const char *configfile_data,
int configfile_len,
struct domain_config *d_config,
libxl_device_model_info *dm_info)
{
const char *buf;
long l;
XLU_Config *config;
XLU_ConfigList *vbds, *nics, *pcis, *cvfbs, *net2s;
int pci_power_mgmt = 0;
int pci_msitranslate = 1;
int e;
libxl_domain_create_info *c_info = &d_config->c_info;
libxl_domain_build_info *b_info = &d_config->b_info;
config= xlu_cfg_init(stderr, configfile_filename_report);
if (!config) {
fprintf(stderr, "Failed to allocate for configuration\n");
exit(1);
}
e= xlu_cfg_readdata(config, configfile_data, configfile_len);
if (e) {
fprintf(stderr, "Failed to parse config file: %s\n", strerror(e));
exit(1);
}
init_create_info(c_info);
c_info->hvm = 0;
if (!xlu_cfg_get_string (config, "builder", &buf) &&
!strncmp(buf, "hvm", strlen(buf)))
c_info->hvm = 1;
if (!xlu_cfg_get_long (config, "hap", &l))
c_info->hap = l;
if (xlu_cfg_replace_string (config, "name", &c_info->name))
c_info->name = strdup("test");
if (!xlu_cfg_get_string (config, "uuid", &buf) ) {
if ( libxl_uuid_from_string(&c_info->uuid, buf) ) {
fprintf(stderr, "Failed to parse UUID: %s\n", buf);
exit(1);
}
}else{
libxl_uuid_generate(&c_info->uuid);
}
if (!xlu_cfg_get_long(config, "oos", &l))
c_info->oos = l;
if (!xlu_cfg_get_string (config, "pool", &buf)) {
c_info->poolid = -1;
pool_qualifier_to_poolid(buf, &c_info->poolid, NULL);
}
c_info->poolname = libxl_poolid_to_name(&ctx, c_info->poolid);
if (!c_info->poolname) {
fprintf(stderr, "Illegal pool specified\n");
exit(1);
}
init_build_info(b_info, c_info);
/* the following is the actual config parsing with overriding values in the structures */
if (!xlu_cfg_get_long (config, "vcpus", &l)) {
b_info->max_vcpus = l;
b_info->cur_vcpus = (1 << l) - 1;
}
if (!xlu_cfg_get_long (config, "maxvcpus", &l))
b_info->max_vcpus = l;
if (!xlu_cfg_get_long (config, "memory", &l)) {
b_info->max_memkb = l * 1024;
b_info->target_memkb = b_info->max_memkb;
}
if (xlu_cfg_get_string (config, "on_poweroff", &buf))
buf = "destroy";
if (!parse_action_on_shutdown(buf, &d_config->on_poweroff)) {
fprintf(stderr, "Unknown on_poweroff action \"%s\" specified\n", buf);
exit(1);
}
if (xlu_cfg_get_string (config, "on_reboot", &buf))
buf = "restart";
if (!parse_action_on_shutdown(buf, &d_config->on_reboot)) {
fprintf(stderr, "Unknown on_reboot action \"%s\" specified\n", buf);
exit(1);
}
if (xlu_cfg_get_string (config, "on_watchdog", &buf))
buf = "destroy";
if (!parse_action_on_shutdown(buf, &d_config->on_watchdog)) {
fprintf(stderr, "Unknown on_watchdog action \"%s\" specified\n", buf);
exit(1);
}
if (xlu_cfg_get_string (config, "on_crash", &buf))
buf = "destroy";
if (!parse_action_on_shutdown(buf, &d_config->on_crash)) {
fprintf(stderr, "Unknown on_crash action \"%s\" specified\n", buf);
exit(1);
}
/* libxl_get_required_shadow_memory() must be called after final values
* (default or specified) for vcpus and memory are set, because the
* calculation depends on those values. */
b_info->shadow_memkb = !xlu_cfg_get_long(config, "shadow_memory", &l)
? l * 1024
: libxl_get_required_shadow_memory(b_info->max_memkb,
b_info->max_vcpus);
if (!xlu_cfg_get_long (config, "nomigrate", &l))
b_info->disable_migrate = l;
if (!xlu_cfg_get_long(config, "tsc_mode", &l))
b_info->tsc_mode = l;
if (!xlu_cfg_get_long (config, "videoram", &l))
b_info->video_memkb = l * 1024;
xlu_cfg_replace_string (config, "kernel", &b_info->kernel.path);
if (c_info->hvm == 1) {
if (!xlu_cfg_get_long (config, "pae", &l))
b_info->u.hvm.pae = l;
if (!xlu_cfg_get_long (config, "apic", &l))
b_info->u.hvm.apic = l;
if (!xlu_cfg_get_long (config, "acpi", &l))
b_info->u.hvm.acpi = l;
if (!xlu_cfg_get_long (config, "nx", &l))
b_info->u.hvm.nx = l;
if (!xlu_cfg_get_long (config, "viridian", &l))
b_info->u.hvm.viridian = l;
if (!xlu_cfg_get_long (config, "hpet", &l))
b_info->u.hvm.hpet = l;
if (!xlu_cfg_get_long (config, "vpt_align", &l))
b_info->u.hvm.vpt_align = l;
if (!xlu_cfg_get_long (config, "timer_mode", &l))
b_info->u.hvm.timer_mode = l;
} else {
char *cmdline = NULL;
const char *root = NULL, *extra = "";
xlu_cfg_get_string (config, "root", &root);
xlu_cfg_get_string (config, "extra", &extra);
if (root) {
if (asprintf(&cmdline, "root=%s %s", root, extra) == -1)
cmdline = NULL;
} else {
cmdline = strdup(extra);
}
if ((root || extra) && !cmdline) {
fprintf(stderr, "Failed to allocate memory for cmdline\n");
exit(1);
}
xlu_cfg_replace_string (config, "bootloader", &b_info->u.pv.bootloader);
xlu_cfg_replace_string (config, "bootloader_args", &b_info->u.pv.bootloader_args);
if (!b_info->u.pv.bootloader && !b_info->kernel.path) {
fprintf(stderr, "Neither kernel nor bootloader specified\n");
exit(1);
}
b_info->u.pv.cmdline = cmdline;
xlu_cfg_replace_string (config, "ramdisk", &b_info->u.pv.ramdisk.path);
}
if (!xlu_cfg_get_list (config, "disk", &vbds, 0)) {
d_config->num_disks = 0;
d_config->disks = NULL;
while ((buf = xlu_cfg_get_listitem (vbds, d_config->num_disks)) != NULL) {
libxl_device_disk *disk;
char *buf2 = strdup(buf);
char *p, *p2;
d_config->disks = (libxl_device_disk *) realloc(d_config->disks, sizeof (libxl_device_disk) * (d_config->num_disks + 1));
disk = d_config->disks + d_config->num_disks;
disk->backend_domid = 0;
disk->domid = 0;
disk->unpluggable = 0;
p = strtok(buf2, ",:");
while (*p == ' ')
p++;
if (!strcmp(p, "phy")) {
disk->phystype = PHYSTYPE_PHY;
} else if (!strcmp(p, "file")) {
disk->phystype = PHYSTYPE_FILE;
} else if (!strcmp(p, "tap")) {
p = strtok(NULL, ":");
if (!strcmp(p, "aio")) {
disk->phystype = PHYSTYPE_AIO;
} else if (!strcmp(p, "vhd")) {
disk->phystype = PHYSTYPE_VHD;
} else if (!strcmp(p, "qcow")) {
disk->phystype = PHYSTYPE_QCOW;
} else if (!strcmp(p, "qcow2")) {
disk->phystype = PHYSTYPE_QCOW2;
}
}
p = strtok(NULL, ",");
while (*p == ' ')
p++;
disk->physpath= strdup(p);
p = strtok(NULL, ",");
while (*p == ' ')
p++;
p2 = strchr(p, ':');
if (p2 == NULL) {
disk->virtpath = strdup(p);
disk->is_cdrom = 0;
disk->unpluggable = 1;
} else {
*p2 = '\0';
disk->virtpath = strdup(p);
if (!strcmp(p2 + 1, "cdrom")) {
disk->is_cdrom = 1;
disk->unpluggable = 1;
} else
disk->is_cdrom = 0;
}
p = strtok(NULL, ",");
while (*p == ' ')
p++;
disk->readwrite = (p[0] == 'w') ? 1 : 0;
free(buf2);
d_config->num_disks++;
}
}
if (!xlu_cfg_get_list (config, "vif", &nics, 0)) {
d_config->num_vifs = 0;
d_config->vifs = NULL;
while ((buf = xlu_cfg_get_listitem (nics, d_config->num_vifs)) != NULL) {
libxl_device_nic *nic;
char *buf2 = strdup(buf);
char *p, *p2;
d_config->vifs = (libxl_device_nic *) realloc(d_config->vifs, sizeof (libxl_device_nic) * (d_config->num_vifs+1));
nic = d_config->vifs + d_config->num_vifs;
init_nic_info(nic, d_config->num_vifs);
p = strtok(buf2, ",");
if (!p)
goto skip;
do {
while (*p == ' ')
p++;
if ((p2 = strchr(p, '=')) == NULL)
break;
*p2 = '\0';
if (!strcmp(p, "model")) {
free(nic->model);
nic->model = strdup(p2 + 1);
} else if (!strcmp(p, "mac")) {
char *p3 = p2 + 1;
*(p3 + 2) = '\0';
nic->mac[0] = strtol(p3, NULL, 16);
p3 = p3 + 3;
*(p3 + 2) = '\0';
nic->mac[1] = strtol(p3, NULL, 16);
p3 = p3 + 3;
*(p3 + 2) = '\0';
nic->mac[2] = strtol(p3, NULL, 16);
p3 = p3 + 3;
*(p3 + 2) = '\0';
nic->mac[3] = strtol(p3, NULL, 16);
p3 = p3 + 3;
*(p3 + 2) = '\0';
nic->mac[4] = strtol(p3, NULL, 16);
p3 = p3 + 3;
*(p3 + 2) = '\0';
nic->mac[5] = strtol(p3, NULL, 16);
} else if (!strcmp(p, "bridge")) {
free(nic->bridge);
nic->bridge = strdup(p2 + 1);
} else if (!strcmp(p, "type")) {
if (!strcmp(p2 + 1, "ioemu"))
nic->nictype = NICTYPE_IOEMU;
else
nic->nictype = NICTYPE_VIF;
} else if (!strcmp(p, "ip")) {
inet_pton(AF_INET, p2 + 1, &nic->ip);
} else if (!strcmp(p, "script")) {
nic->script = strdup(p2 + 1);
} else if (!strcmp(p, "vifname")) {
nic->ifname = strdup(p2 + 1);
} else if (!strcmp(p, "backend")) {
if(libxl_name_to_domid(&ctx, (p2 + 1), &(nic->backend_domid))) {
fprintf(stderr, "Specified backend domain does not exist, defaulting to Dom0\n");
nic->backend_domid = 0;
}
} else if (!strcmp(p, "rate")) {
fprintf(stderr, "the rate parameter for vifs is currently not supported\n");
} else if (!strcmp(p, "accel")) {
fprintf(stderr, "the accel parameter for vifs is currently not supported\n");
}
} while ((p = strtok(NULL, ",")) != NULL);
skip:
free(buf2);
d_config->num_vifs++;
}
}
if (!xlu_cfg_get_list(config, "vif2", &net2s, 0)) {
d_config->num_vif2s = 0;
d_config->vif2s = NULL;
while ((buf = xlu_cfg_get_listitem(net2s, d_config->num_vif2s))) {
libxl_device_net2 *net2;
char *buf2 = strdup(buf);
char *p;
d_config->vif2s = realloc(d_config->vif2s, sizeof (libxl_device_net2) * (d_config->num_vif2s + 1));
net2 = d_config->vif2s + d_config->num_vif2s;
init_net2_info(net2, d_config->num_vif2s);
for (p = strtok(buf2, ","); p; p = strtok(NULL, ",")) {
char* val;
while (isblank(*p))
p++;
val = strchr(p, '=');
if (val == NULL)
continue;
*val++ = 0;
if (!strcmp("front_mac", p)) {
libxl_strtomac(val, net2->front_mac);
} else if (!strcmp("back_mac", p)) {
libxl_strtomac(val, net2->back_mac);
} else if (!strcmp("backend", p)) {
domain_qualifier_to_domid(val, &net2->backend_domid, 0);
} else if (!strcmp("trusted", p)) {
net2->trusted = (*val == '1');
} else if (!strcmp("back_trusted", p)) {
net2->back_trusted = (*val == '1');
} else if (!strcmp("bridge", p)) {
net2->bridge = strdup(val);
} else if (!strcmp("filter_mac", p)) {
net2->filter_mac = (*val == '1');
} else if (!strcmp("front_filter_mac", p)) {
net2->front_filter_mac = (*val == '1');
} else if (!strcmp("pdev", p)) {
net2->pdev = strtoul(val, NULL, 10);
} else if (!strcmp("max_bypasses", p)) {
net2->max_bypasses = strtoul(val, NULL, 10);
}
}
free(buf2);
d_config->num_vif2s++;
}
}
if (!xlu_cfg_get_list (config, "vfb", &cvfbs, 0)) {
d_config->num_vfbs = 0;
d_config->num_vkbs = 0;
d_config->vfbs = NULL;
d_config->vkbs = NULL;
while ((buf = xlu_cfg_get_listitem (cvfbs, d_config->num_vfbs)) != NULL) {
libxl_device_vfb *vfb;
libxl_device_vkb *vkb;
char *buf2 = strdup(buf);
char *p, *p2;
d_config->vfbs = (libxl_device_vfb *) realloc(d_config->vfbs, sizeof(libxl_device_vfb) * (d_config->num_vfbs + 1));
vfb = d_config->vfbs + d_config->num_vfbs;
init_vfb_info(vfb, d_config->num_vfbs);
d_config->vkbs = (libxl_device_vkb *) realloc(d_config->vkbs, sizeof(libxl_device_vkb) * (d_config->num_vkbs + 1));
vkb = d_config->vkbs + d_config->num_vkbs;
init_vkb_info(vkb, d_config->num_vkbs);
p = strtok(buf2, ",");
if (!p)
goto skip_vfb;
do {
while (*p == ' ')
p++;
if ((p2 = strchr(p, '=')) == NULL)
break;
*p2 = '\0';
if (!strcmp(p, "vnc")) {
vfb->vnc = atoi(p2 + 1);
} else if (!strcmp(p, "vnclisten")) {
vfb->vnclisten = strdup(p2 + 1);
} else if (!strcmp(p, "vncpasswd")) {
vfb->vncpasswd = strdup(p2 + 1);
} else if (!strcmp(p, "vncdisplay")) {
vfb->vncdisplay = atoi(p2 + 1);
} else if (!strcmp(p, "vncunused")) {
vfb->vncunused = atoi(p2 + 1);
} else if (!strcmp(p, "keymap")) {
vfb->keymap = strdup(p2 + 1);
} else if (!strcmp(p, "sdl")) {
vfb->sdl = atoi(p2 + 1);
} else if (!strcmp(p, "opengl")) {
vfb->opengl = atoi(p2 + 1);
} else if (!strcmp(p, "display")) {
vfb->display = strdup(p2 + 1);
} else if (!strcmp(p, "xauthority")) {
vfb->xauthority = strdup(p2 + 1);
}
} while ((p = strtok(NULL, ",")) != NULL);
skip_vfb:
free(buf2);
d_config->num_vfbs++;
d_config->num_vkbs++;
}
}
if (!xlu_cfg_get_long (config, "pci_msitranslate", &l))
pci_msitranslate = l;
if (!xlu_cfg_get_long (config, "pci_power_mgmt", &l))
pci_power_mgmt = l;
if (!xlu_cfg_get_list (config, "pci", &pcis, 0)) {
int i;
d_config->num_pcidevs = 0;
d_config->pcidevs = NULL;
for(i = 0; (buf = xlu_cfg_get_listitem (pcis, i)) != NULL; i++) {
libxl_device_pci *pcidev;
d_config->pcidevs = (libxl_device_pci *) realloc(d_config->pcidevs, sizeof (libxl_device_pci) * (d_config->num_pcidevs + 1));
pcidev = d_config->pcidevs + d_config->num_pcidevs;
memset(pcidev, 0x00, sizeof(libxl_device_pci));
pcidev->msitranslate = pci_msitranslate;
pcidev->power_mgmt = pci_power_mgmt;
if (!libxl_device_pci_parse_bdf(&ctx, pcidev, buf))
d_config->num_pcidevs++;
}
}
if (c_info->hvm == 1) {
/* init dm from c and b */
init_dm_info(dm_info, c_info, b_info);
/* then process config related to dm */
xlu_cfg_replace_string (config, "device_model", &dm_info->device_model);
if (!xlu_cfg_get_long (config, "stdvga", &l))
dm_info->stdvga = l;
if (!xlu_cfg_get_long (config, "vnc", &l))
dm_info->vnc = l;
xlu_cfg_replace_string (config, "vnclisten", &dm_info->vnclisten);
xlu_cfg_replace_string (config, "vncpasswd", &dm_info->vncpasswd);
if (!xlu_cfg_get_long (config, "vncdisplay", &l))
dm_info->vncdisplay = l;
if (!xlu_cfg_get_long (config, "vncunused", &l))
dm_info->vncunused = l;
xlu_cfg_replace_string (config, "keymap", &dm_info->keymap);
if (!xlu_cfg_get_long (config, "sdl", &l))
dm_info->sdl = l;
if (!xlu_cfg_get_long (config, "opengl", &l))
dm_info->opengl = l;
if (!xlu_cfg_get_long (config, "nographic", &l))
dm_info->nographic = l;
xlu_cfg_replace_string (config, "serial", &dm_info->serial);
xlu_cfg_replace_string (config, "boot", &dm_info->boot);
if (!xlu_cfg_get_long (config, "usb", &l))
dm_info->usb = l;
xlu_cfg_replace_string (config, "usbdevice", &dm_info->usbdevice);
xlu_cfg_replace_string (config, "soundhw", &dm_info->soundhw);
if (!xlu_cfg_get_long (config, "xen_platform_pci", &l))
dm_info->xen_platform_pci = l;
}
dm_info->type = c_info->hvm ? XENFV : XENPV;
xlu_cfg_destroy(config);
}
static void *xmalloc(size_t sz) {
void *r;
r = malloc(sz);
if (!r) { fprintf(stderr,"xl: Unable to malloc %lu bytes.\n",
(unsigned long)sz); exit(-ERROR_FAIL); }
return r;
}
static void *xrealloc(void *ptr, size_t sz) {
void *r;
if (!sz) { free(ptr); return 0; }
/* realloc(non-0, 0) has a useless return value;
* but xrealloc(anything, 0) is like free
*/
r = realloc(ptr, sz);
if (!r) { fprintf(stderr,"xl: Unable to realloc to %lu bytes.\n",
(unsigned long)sz); exit(-ERROR_FAIL); }
return r;
}
static pid_t autoconnect_console(void)
{
pid_t pid;
pid = fork();
if (pid < 0) {
perror("unable to fork xenconsole");
return ERROR_FAIL;
} else if (pid > 0)
return pid;
libxl_ctx_postfork(&ctx);
sleep(1);
libxl_primary_console_exec(&ctx, domid);
/* Do not return. xl continued in child process */
fprintf(stderr, "Unable to attach console\n");
_exit(1);
}
/* Returns 1 if domain should be restarted, 2 if domain should be renamed then restarted */
static int handle_domain_death(libxl_ctx *ctx, uint32_t domid, libxl_event *event,
struct domain_config *d_config, libxl_dominfo *info)
{
int restart = 0;
enum action_on_shutdown action;
switch (info->shutdown_reason) {
case SHUTDOWN_poweroff:
action = d_config->on_poweroff;
break;
case SHUTDOWN_reboot:
action = d_config->on_reboot;
break;
case SHUTDOWN_suspend:
return 0;
case SHUTDOWN_crash:
action = d_config->on_crash;
break;
case SHUTDOWN_watchdog:
action = d_config->on_watchdog;
break;
default:
LOG("Unknown shutdown reason code %d. Destroying domain.", info->shutdown_reason);
action = ACTION_DESTROY;
}
LOG("Action for shutdown reason code %d is %s", info->shutdown_reason, action_on_shutdown_names[action]);
if (action == ACTION_COREDUMP_DESTROY || action == ACTION_COREDUMP_RESTART) {
char *corefile;
int rc;
if (asprintf(&corefile, "/var/xen/dump/%s", d_config->c_info.name) < 0) {
LOG("failed to construct core dump path");
} else {
LOG("dumping core to %s", corefile);
rc=libxl_domain_core_dump(ctx, domid, corefile);
if (rc) LOG("core dump failed (rc=%d).", rc);
}
/* No point crying over spilled milk, continue on failure. */
if (action == ACTION_COREDUMP_DESTROY)
action = ACTION_DESTROY;
else
action = ACTION_RESTART;
}
switch (action) {
case ACTION_PRESERVE:
break;
case ACTION_RESTART_RENAME:
restart = 2;
break;
case ACTION_RESTART:
restart = 1;
/* fall-through */
case ACTION_DESTROY:
LOG("Domain %d needs to be cleaned up: destroying the domain", domid);
libxl_domain_destroy(ctx, domid, 0);
break;
case ACTION_COREDUMP_DESTROY:
case ACTION_COREDUMP_RESTART:
/* Already handled these above. */
abort();
}
return restart;
}
static int preserve_domain(libxl_ctx *ctx, uint32_t domid, libxl_event *event,
struct domain_config *d_config, libxl_dominfo *info)
{
time_t now;
struct tm tm;
char stime[24];
libxl_uuid new_uuid;
int rc;
now = time(NULL);
if (now == ((time_t) -1)) {
LOG("Failed to get current time for domain rename");
return 0;
}
tzset();
if (gmtime_r(&now, &tm) == NULL) {
LOG("Failed to convert time to UTC");
return 0;
}
if (!strftime(&stime[0], sizeof(stime), "-%Y%m%dT%H%MZ", &tm)) {
LOG("Failed to format time as a string");
return 0;
}
libxl_uuid_generate(&new_uuid);
LOG("Preserving domain %d %s with suffix%s", domid, d_config->c_info.name, stime);
rc = libxl_domain_preserve(ctx, domid, &d_config->c_info, stime, new_uuid);
return rc == 0 ? 1 : 0;
}
struct domain_create {
int debug;
int daemonize;
int paused;
int dryrun;
int quiet;
int console_autoconnect;
const char *config_file;
const char *extra_config; /* extra config string */
const char *restore_file;
int migrate_fd; /* -1 means none */
char **migration_domname_r; /* from malloc */
};
static int create_domain(struct domain_create *dom_info)
{
struct domain_config d_config;
libxl_domain_build_state state;
libxl_device_model_info dm_info;
libxl_device_console console;
int debug = dom_info->debug;
int daemonize = dom_info->daemonize;
int paused = dom_info->paused;
const char *config_file = dom_info->config_file;
const char *extra_config = dom_info->extra_config;
const char *restore_file = dom_info->restore_file;
int migrate_fd = dom_info->migrate_fd;
int i, fd;
int need_daemon = 1;
int ret, rc;
libxl_device_model_starting *dm_starting = 0;
libxl_waiter *w1 = NULL, *w2 = NULL;
void *config_data = 0;
int config_len = 0;
int restore_fd = -1;
struct save_file_header hdr;
pid_t child_console_pid = -1;
int status = 0;
memset(&d_config, 0x00, sizeof(d_config));
memset(&dm_info, 0x00, sizeof(dm_info));
if (restore_file) {
uint8_t *optdata_begin = 0;
const uint8_t *optdata_here = 0;
union { uint32_t u32; char b[4]; } u32buf;
uint32_t badflags;
restore_fd = migrate_fd >= 0 ? migrate_fd :
open(restore_file, O_RDONLY);
CHK_ERRNO( libxl_read_exactly(&ctx, restore_fd, &hdr,
sizeof(hdr), restore_file, "header") );
if (memcmp(hdr.magic, savefileheader_magic, sizeof(hdr.magic))) {
fprintf(stderr, "File has wrong magic number -"
" corrupt or for a different tool?\n");
return ERROR_INVAL;
}
if (hdr.byteorder != SAVEFILE_BYTEORDER_VALUE) {
fprintf(stderr, "File has wrong byte order\n");
return ERROR_INVAL;
}
fprintf(stderr, "Loading new save file %s"
" (new xl fmt info"
" 0x%"PRIx32"/0x%"PRIx32"/%"PRIu32")\n",
restore_file, hdr.mandatory_flags, hdr.optional_flags,
hdr.optional_data_len);
badflags = hdr.mandatory_flags & ~( 0 /* none understood yet */ );
if (badflags) {
fprintf(stderr, "Savefile has mandatory flag(s) 0x%"PRIx32" "
"which are not supported; need newer xl\n",
badflags);
return ERROR_INVAL;
}
if (hdr.optional_data_len) {
optdata_begin = xmalloc(hdr.optional_data_len);
CHK_ERRNO( libxl_read_exactly(&ctx, restore_fd, optdata_begin,
hdr.optional_data_len, restore_file, "optdata") );
}
#define OPTDATA_LEFT (hdr.optional_data_len - (optdata_here - optdata_begin))
#define WITH_OPTDATA(amt, body) \
if (OPTDATA_LEFT < (amt)) { \
fprintf(stderr, "Savefile truncated.\n"); \
return ERROR_INVAL; \
} else { \
body; \
optdata_here += (amt); \
}
optdata_here = optdata_begin;
if (OPTDATA_LEFT) {
fprintf(stderr, " Savefile contains xl domain config\n");
WITH_OPTDATA(4, {
memcpy(u32buf.b, optdata_here, 4);
config_len = u32buf.u32;
});
WITH_OPTDATA(config_len, {
config_data = xmalloc(config_len);
memcpy(config_data, optdata_here, config_len);
});
}
}
if (config_file) {
free(config_data); config_data = 0;
ret = libxl_read_file_contents(&ctx, config_file,
&config_data, &config_len);
if (ret) { fprintf(stderr, "Failed to read config file: %s: %s\n",
config_file, strerror(errno)); return ERROR_FAIL; }
if (!restore_file && extra_config && strlen(extra_config)) {
if (config_len > INT_MAX - (strlen(extra_config) + 2 + 1)) {
fprintf(stderr, "Failed to attach extra configration\n");
return ERROR_FAIL;
}
/* allocate space for the extra config plus two EOLs plus \0 */
config_data = realloc(config_data, config_len
+ strlen(extra_config) + 2 + 1);
if (!config_data) {
fprintf(stderr, "Failed to realloc config_data\n");
return ERROR_FAIL;
}
config_len += sprintf(config_data + config_len, "\n%s\n",
extra_config);
}
} else {
if (!config_data) {
fprintf(stderr, "Config file not specified and"
" none in save file\n");
return ERROR_INVAL;
}
config_file = "<saved>";
}
if (!dom_info->quiet)
printf("Parsing config file %s\n", config_file);
parse_config_data(config_file, config_data, config_len, &d_config, &dm_info);
ret = 0;
if (dom_info->dryrun)
goto out;
if (migrate_fd >= 0) {
if (d_config.c_info.name) {
/* when we receive a domain we get its name from the config
* file; and we receive it to a temporary name */
assert(!common_domname);
common_domname = d_config.c_info.name;
d_config.c_info.name = 0; /* steals allocation from config */
if (asprintf(&d_config.c_info.name,
"%s--incoming", d_config.c_info.name) < 0) {
fprintf(stderr, "Failed to allocate memory in asprintf\n");
exit(1);
}
*dom_info->migration_domname_r = strdup(d_config.c_info.name);
}
}
if (debug)
printf_info(-1, &d_config, &dm_info);
start:
domid = 0;
ret = libxl_domain_make(&ctx, &d_config.c_info, &domid);
if (ret) {
fprintf(stderr, "cannot make domain: %d\n", ret);
ret = ERROR_FAIL;
goto error_out;
}
ret = libxl_userdata_store(&ctx, domid, "xl",
config_data, config_len);
if (ret) {
perror("cannot save config file");
ret = ERROR_FAIL;
goto error_out;
}
if (dom_info->console_autoconnect && !d_config.c_info.hvm) {
child_console_pid = autoconnect_console();
if (child_console_pid < 0)
goto error_out;
}
if (!restore_file) {
ret = libxl_run_bootloader(&ctx, &d_config.b_info, d_config.num_disks > 0 ? &d_config.disks[0] : NULL, domid);
if (ret) {
fprintf(stderr, "failed to run bootloader: %d\n", ret);
goto error_out;
}
}
if (!restore_file || !need_daemon) {
if (dm_info.saved_state) {
free(dm_info.saved_state);
dm_info.saved_state = NULL;
}
ret = libxl_domain_build(&ctx, &d_config.b_info, domid, &state);
} else {
ret = libxl_domain_restore(&ctx, &d_config.b_info, domid, restore_fd, &state, &dm_info);
}
if (ret) {
fprintf(stderr, "cannot (re-)build domain: %d\n", ret);
ret = ERROR_FAIL;
goto error_out;
}
for (i = 0; i < d_config.num_disks; i++) {
d_config.disks[i].domid = domid;
ret = libxl_device_disk_add(&ctx, domid, &d_config.disks[i]);
if (ret) {
fprintf(stderr, "cannot add disk %d to domain: %d\n", i, ret);
ret = ERROR_FAIL;
goto error_out;
}
}
for (i = 0; i < d_config.num_vifs; i++) {
d_config.vifs[i].domid = domid;
ret = libxl_device_nic_add(&ctx, domid, &d_config.vifs[i]);
if (ret) {
fprintf(stderr, "cannot add nic %d to domain: %d\n", i, ret);
ret = ERROR_FAIL;
goto error_out;
}
}
if (!d_config.c_info.hvm) {
for (i = 0; i < d_config.num_vif2s; i++) {
d_config.vif2s[i].domid = domid;
ret = libxl_device_net2_add(&ctx, domid, &d_config.vif2s[i]);
if (ret) {
fprintf(stderr, "cannot add net2 %d to domain: %d\n", i, ret);
ret = ERROR_FAIL;
goto error_out;
}
}
}
if (d_config.c_info.hvm) {
init_console_info(&console, 0, &state);
console.domid = domid;
libxl_device_console_add(&ctx, domid, &console);
dm_info.domid = domid;
MUST( libxl_create_device_model(&ctx, &dm_info,
d_config.disks, d_config.num_disks,
d_config.vifs, d_config.num_vifs,
&dm_starting) );
} else {
for (i = 0; i < d_config.num_vfbs; i++) {
d_config.vfbs[i].domid = domid;
libxl_device_vfb_add(&ctx, domid, &d_config.vfbs[i]);
d_config.vkbs[i].domid = domid;
libxl_device_vkb_add(&ctx, domid, &d_config.vkbs[i]);
}
init_console_info(&console, 0, &state);
console.domid = domid;
if (d_config.num_vfbs)
console.consback = LIBXL_CONSBACK_IOEMU;
libxl_device_console_add(&ctx, domid, &console);
if (d_config.num_vfbs)
libxl_create_xenpv_qemu(&ctx, domid, d_config.vfbs, &dm_starting);
}
if (dm_starting)
MUST( libxl_confirm_device_model_startup(&ctx, dm_starting) );
for (i = 0; i < d_config.num_pcidevs; i++)
libxl_device_pci_add(&ctx, domid, &d_config.pcidevs[i]);
if (dom_info->console_autoconnect && d_config.c_info.hvm) {
child_console_pid = autoconnect_console();
if (child_console_pid < 0)
goto error_out;
}
if (!paused)
libxl_domain_unpause(&ctx, domid);
ret = domid; /* caller gets success in parent */
if (!daemonize)
goto out;
if (need_daemon) {
char *fullname, *name;
pid_t child1, got_child;
int nullfd;
child1 = libxl_fork(&ctx);
if (child1) {
for (;;) {
got_child = waitpid(child1, &status, 0);
if (got_child == child1) break;
assert(got_child == -1);
if (errno != EINTR) {
perror("failed to wait for daemonizing child");
ret = ERROR_FAIL;
goto error_out;
}
}
if (status) {
libxl_report_child_exitstatus(&ctx, XTL_ERROR,
"daemonizing child", child1, status);
ret = ERROR_FAIL;
goto error_out;
}
ret = domid;
goto out;
}
rc = libxl_ctx_postfork(&ctx);
if (rc) {
LOG("failed to reinitialise context after fork");
exit(-1);
}
if (asprintf(&name, "xl-%s", d_config.c_info.name) < 0) {
LOG("Failed to allocate memory in asprintf");
exit(1);
}
rc = libxl_create_logfile(&ctx, name, &fullname);
if (rc) {
LOG("failed to open logfile %s: %s",fullname,strerror(errno));
exit(-1);
}
CHK_ERRNO(( logfile = open(fullname, O_WRONLY|O_CREAT, 0644) )<0);
free(fullname);
free(name);
CHK_ERRNO(( nullfd = open("/dev/null", O_RDONLY) )<0);
dup2(nullfd, 0);
dup2(logfile, 1);
dup2(logfile, 2);
CHK_ERRNO(daemon(0, 1) < 0);
need_daemon = 0;
}
LOG("Waiting for domain %s (domid %d) to die [pid %ld]",
d_config.c_info.name, domid, (long)getpid());
w1 = (libxl_waiter*) xmalloc(sizeof(libxl_waiter) * d_config.num_disks);
w2 = (libxl_waiter*) xmalloc(sizeof(libxl_waiter));
libxl_wait_for_disk_ejects(&ctx, domid, d_config.disks, d_config.num_disks, w1);
libxl_wait_for_domain_death(&ctx, domid, w2);
libxl_get_wait_fd(&ctx, &fd);
while (1) {
int ret;
fd_set rfds;
libxl_dominfo info;
libxl_event event;
libxl_device_disk disk;
FD_ZERO(&rfds);
FD_SET(fd, &rfds);
ret = select(fd + 1, &rfds, NULL, NULL, NULL);
if (!ret)
continue;
libxl_get_event(&ctx, &event);
switch (event.type) {
case LIBXL_EVENT_DOMAIN_DEATH:
ret = libxl_event_get_domain_death_info(&ctx, domid, &event, &info);
if (ret < 0) continue;
LOG("Domain %d is dead", domid);
if (ret) {
switch (handle_domain_death(&ctx, domid, &event, &d_config, &info)) {
case 2:
if (!preserve_domain(&ctx, domid, &event, &d_config, &info)) {
/* If we fail then exit leaving the old domain in place. */
ret = -1;
goto out;
}
/* Otherwise fall through and restart. */
case 1:
libxl_free_waiter(w1);
libxl_free_waiter(w2);
free(w1);
free(w2);
/*
* Do not attempt to reconnect if we come round again due to a
* guest reboot -- the stdin/out will be disconnected by then.
*/
dom_info->console_autoconnect = 0;
/*
* XXX FIXME: If this sleep is not there then domain
* re-creation fails sometimes.
*/
LOG("Done. Rebooting now");
sleep(2);
goto start;
case 0:
LOG("Done. Exiting now");
ret = 0;
goto out;
}
}
break;
case LIBXL_EVENT_DISK_EJECT:
if (libxl_event_get_disk_eject_info(&ctx, domid, &event, &disk))
libxl_cdrom_insert(&ctx, domid, &disk);
break;
}
libxl_free_event(&event);
}
error_out:
if (domid)
libxl_domain_destroy(&ctx, domid, 0);
out:
if (logfile != 2)
close(logfile);
libxl_device_model_info_destroy(&dm_info);
free_domain_config(&d_config);
free(config_data);
waitpid_out:
if (child_console_pid > 0 &&
waitpid(child_console_pid, &status, 0) < 0 && errno == EINTR)
goto waitpid_out;
/*
* If we have daemonized then do not return to the caller -- this has
* already happened in the parent.
*/
if ( !need_daemon )
exit(ret);
return ret;
}
void help(char *command)
{
int i;
struct cmd_spec *cmd;
if (!command || !strcmp(command, "help")) {
printf("Usage xl [-v] <subcommand> [args]\n\n");
printf("xl full list of subcommands:\n\n");
for (i = 0; i < cmdtable_len; i++)
printf(" %-20s%s\n",
cmd_table[i].cmd_name, cmd_table[i].cmd_desc);
} else {
cmd = cmdtable_lookup(command);
if (cmd) {
printf("Usage: xl [-v] %s %s\n\n%s.\n\n",
cmd->cmd_name,
cmd->cmd_usage,
cmd->cmd_desc);
if (cmd->cmd_option)
printf("Options:\n\n%s\n", cmd->cmd_option);
}
else {
printf("command \"%s\" not implemented\n", command);
}
}
}
static int64_t parse_mem_size_kb(char *mem)
{
char *endptr;
int64_t kbytes;
kbytes = strtoll(mem, &endptr, 10);
if (strlen(endptr) > 1)
return -1;
switch (tolower((uint8_t)*endptr)) {
case 't':
kbytes <<= 10;
case 'g':
kbytes <<= 10;
case '\0':
case 'm':
kbytes <<= 10;
case 'k':
break;
case 'b':
kbytes >>= 10;
break;
default:
return -1;
}
return kbytes;
}
static int set_memory_max(char *p, char *mem)
{
int64_t memorykb;
int rc;
find_domain(p);
memorykb = parse_mem_size_kb(mem);
if (memorykb == -1) {
fprintf(stderr, "invalid memory size: %s\n", mem);
exit(3);
}
rc = libxl_domain_setmaxmem(&ctx, domid, memorykb);
return rc;
}
int main_memmax(int argc, char **argv)
{
int opt = 0;
char *p = NULL, *mem;
int rc;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("mem-max");
exit(0);
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc - 1) {
help("mem-max");
return 2;
}
p = argv[optind];
mem = argv[optind + 1];
rc = set_memory_max(p, mem);
if (rc) {
fprintf(stderr, "cannot set domid %d static max memory to : %s\n", domid, mem);
return 1;
}
return 0;
}
static void set_memory_target(char *p, char *mem)
{
long long int memorykb;
find_domain(p);
memorykb = parse_mem_size_kb(mem);
if (memorykb == -1) {
fprintf(stderr, "invalid memory size: %s\n", mem);
exit(3);
}
libxl_set_memory_target(&ctx, domid, memorykb, /* enforce */ 1);
}
int main_memset(int argc, char **argv)
{
int opt = 0;
char *p = NULL, *mem;
while ((opt = getopt(argc, argv, "h:")) != -1) {
switch (opt) {
case 'h':
help("mem-set");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc - 1) {
help("mem-set");
return 2;
}
p = argv[optind];
mem = argv[optind + 1];
set_memory_target(p, mem);
return 0;
}
static void cd_insert(char *dom, char *virtdev, char *phys)
{
libxl_device_disk disk;
char *p;
find_domain(dom);
disk.backend_domid = 0;
disk.domid = domid;
if (phys) {
p = strchr(phys, ':');
if (!p) {
fprintf(stderr, "No type specified, ");
disk.physpath = phys;
if (!strncmp(phys, "/dev", 4)) {
fprintf(stderr, "assuming phy:\n");
disk.phystype = PHYSTYPE_PHY;
} else {
fprintf(stderr, "assuming file:\n");
disk.phystype = PHYSTYPE_FILE;
}
} else {
*p = '\0';
p++;
disk.physpath = p;
libxl_string_to_phystype(&ctx, phys, &disk.phystype);
}
} else {
disk.physpath = NULL;
disk.phystype = 0;
}
disk.virtpath = virtdev;
disk.unpluggable = 1;
disk.readwrite = 0;
disk.is_cdrom = 1;
libxl_cdrom_insert(&ctx, domid, &disk);
}
int main_cd_eject(int argc, char **argv)
{
int opt = 0;
char *p = NULL, *virtdev;
while ((opt = getopt(argc, argv, "hn:")) != -1) {
switch (opt) {
case 'h':
help("cd-eject");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc - 1) {
help("cd-eject");
return 2;
}
p = argv[optind];
virtdev = argv[optind + 1];
cd_insert(p, virtdev, NULL);
return 0;
}
int main_cd_insert(int argc, char **argv)
{
int opt = 0;
char *p = NULL, *file = NULL, *virtdev;
while ((opt = getopt(argc, argv, "hn:")) != -1) {
switch (opt) {
case 'h':
help("cd-insert");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc - 2) {
help("cd-insert");
return 2;
}
p = argv[optind];
virtdev = argv[optind + 1];
file = argv[optind + 2];
cd_insert(p, virtdev, file);
return 0;
}
int main_console(int argc, char **argv)
{
int opt = 0, num = 0;
libxl_console_constype type = 0;
while ((opt = getopt(argc, argv, "hn:t:")) != -1) {
switch (opt) {
case 'h':
help("console");
return 0;
case 't':
if (!strcmp(optarg, "pv"))
type = LIBXL_CONSTYPE_PV;
else if (!strcmp(optarg, "serial"))
type = LIBXL_CONSTYPE_SERIAL;
else {
fprintf(stderr, "console type supported are: pv, serial\n");
return 2;
}
break;
case 'n':
num = atoi(optarg);
break;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc) {
help("console");
return 2;
}
find_domain(argv[optind]);
if (!type)
libxl_primary_console_exec(&ctx, domid);
else
libxl_console_exec(&ctx, domid, num, type);
fprintf(stderr, "Unable to attach console\n");
return 1;
}
static int vncviewer(const char *domain_spec, int autopass)
{
find_domain(domain_spec);
libxl_vncviewer_exec(&ctx, domid, autopass);
fprintf(stderr, "Unable to execute vncviewer\n");
return 1;
}
int main_vncviewer(int argc, char **argv)
{
static const struct option long_options[] = {
{"autopass", 0, 0, 'a'},
{"vncviewer-autopass", 0, 0, 'a'},
{"help", 0, 0, 'h'},
{0, 0, 0, 0}
};
int opt, autopass = 0;
while (1) {
opt = getopt_long(argc, argv, "ah", long_options, NULL);
if (opt == -1)
break;
switch (opt) {
case 'a':
autopass = 1;
break;
case 'h':
help("vncviewer");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (argc - optind != 1) {
help("vncviewer");
return 2;
}
if (vncviewer(argv[optind], autopass))
return 1;
return 0;
}
static void pcilist_assignable(void)
{
libxl_device_pci *pcidevs;
int num, i;
if ( libxl_device_pci_list_assignable(&ctx, &pcidevs, &num) )
return;
for (i = 0; i < num; i++) {
printf("%04x:%02x:%02x.%01x\n",
pcidevs[i].domain, pcidevs[i].bus, pcidevs[i].dev, pcidevs[i].func);
}
free(pcidevs);
}
int main_pcilist_assignable(int argc, char **argv)
{
int opt;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("pci-list-assignable-devices");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
pcilist_assignable();
return 0;
}
static void pcilist(char *dom)
{
libxl_device_pci *pcidevs;
int num, i;
find_domain(dom);
if (libxl_device_pci_list_assigned(&ctx, &pcidevs, domid, &num))
return;
printf("VFn domain bus slot func\n");
for (i = 0; i < num; i++) {
printf("0x%02x 0x%04x 0x%02x 0x%02x 0x%01x\n", pcidevs[i].vdevfn, pcidevs[i].domain, pcidevs[i].bus, pcidevs[i].dev, pcidevs[i].func);
libxl_device_pci_destroy(&pcidevs[i]);
}
free(pcidevs);
}
int main_pcilist(int argc, char **argv)
{
int opt;
char *domname = NULL;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("pci-list");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc) {
help("pci-list");
return 2;
}
domname = argv[optind];
pcilist(domname);
return 0;
}
static void pcidetach(char *dom, char *bdf)
{
libxl_device_pci pcidev;
find_domain(dom);
memset(&pcidev, 0x00, sizeof(pcidev));
if (libxl_device_pci_parse_bdf(&ctx, &pcidev, bdf)) {
fprintf(stderr, "pci-detach: malformed BDF specification \"%s\"\n", bdf);
exit(2);
}
libxl_device_pci_remove(&ctx, domid, &pcidev);
libxl_device_pci_destroy(&pcidev);
}
int main_pcidetach(int argc, char **argv)
{
int opt;
char *domname = NULL, *bdf = NULL;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("pci-detach");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc - 1) {
help("pci-detach");
return 2;
}
domname = argv[optind];
bdf = argv[optind + 1];
pcidetach(domname, bdf);
return 0;
}
static void pciattach(char *dom, char *bdf, char *vs)
{
libxl_device_pci pcidev;
find_domain(dom);
memset(&pcidev, 0x00, sizeof(pcidev));
if (libxl_device_pci_parse_bdf(&ctx, &pcidev, bdf)) {
fprintf(stderr, "pci-attach: malformed BDF specification \"%s\"\n", bdf);
exit(2);
}
libxl_device_pci_add(&ctx, domid, &pcidev);
libxl_device_pci_destroy(&pcidev);
}
int main_pciattach(int argc, char **argv)
{
int opt;
char *domname = NULL, *bdf = NULL, *vs = NULL;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("pci-attach");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc - 1) {
help("pci-attach");
return 2;
}
domname = argv[optind];
bdf = argv[optind + 1];
if (optind + 1 < argc)
vs = argv[optind + 2];
pciattach(domname, bdf, vs);
return 0;
}
static void pause_domain(char *p)
{
find_domain(p);
libxl_domain_pause(&ctx, domid);
}
static void unpause_domain(char *p)
{
find_domain(p);
libxl_domain_unpause(&ctx, domid);
}
static void destroy_domain(char *p)
{
int rc;
find_domain(p);
if (domid == 0) {
fprintf(stderr, "Cannot destroy privileged domain 0.\n\n");
exit(-1);
}
rc = libxl_domain_destroy(&ctx, domid, 0);
if (rc) { fprintf(stderr,"destroy failed (rc=%d)\n.",rc); exit(-1); }
}
static void shutdown_domain(char *p)
{
int rc;
find_domain(p);
rc=libxl_domain_shutdown(&ctx, domid, 0);
if (rc) { fprintf(stderr,"shutdown failed (rc=%d)\n.",rc);exit(-1); }
}
static void reboot_domain(char *p)
{
int rc;
find_domain(p);
rc=libxl_domain_shutdown(&ctx, domid, 1);
if (rc) { fprintf(stderr,"reboot failed (rc=%d)\n.",rc);exit(-1); }
}
static void list_domains_details(const libxl_dominfo *info, int nb_domain)
{
struct domain_config d_config;
char *config_file;
uint8_t *data;
int i, len, rc;
libxl_device_model_info dm_info;
for (i = 0; i < nb_domain; i++) {
/* no detailed info available on dom0 */
if (info[i].domid == 0)
continue;
rc = libxl_userdata_retrieve(&ctx, info[i].domid, "xl", &data, &len);
if (rc)
continue;
CHK_ERRNO(asprintf(&config_file, "<domid %d data>", info[i].domid));
memset(&d_config, 0x00, sizeof(d_config));
parse_config_data(config_file, (char *)data, len, &d_config, &dm_info);
printf_info(info[i].domid, &d_config, &dm_info);
free_domain_config(&d_config);
free(data);
free(config_file);
}
}
static void list_domains(int verbose, const libxl_dominfo *info, int nb_domain)
{
int i;
printf("Name ID Mem VCPUs\tState\tTime(s)\n");
for (i = 0; i < nb_domain; i++) {
char *domname;
domname = libxl_domid_to_name(&ctx, info[i].domid);
printf("%-40s %5d %5lu %5d %c%c%c%c%c%c %8.1f",
domname,
info[i].domid,
(unsigned long) (info[i].max_memkb / 1024),
info[i].vcpu_online,
info[i].running ? 'r' : '-',
info[i].blocked ? 'b' : '-',
info[i].paused ? 'p' : '-',
info[i].shutdown ? 's' : '-',
info[i].shutdown_reason == SHUTDOWN_crash ? 'c' : '-',
info[i].dying ? 'd' : '-',
((float)info[i].cpu_time / 1e9));
free(domname);
if (verbose)
printf(" " LIBXL_UUID_FMT, LIBXL_UUID_BYTES(info[i].uuid));
putchar('\n');
}
}
static void list_vm(void)
{
libxl_vminfo *info;
char *domname;
int nb_vm, i;
info = libxl_list_vm(&ctx, &nb_vm);
if (info < 0) {
fprintf(stderr, "libxl_domain_infolist failed.\n");
exit(1);
}
printf("UUID ID name\n");
for (i = 0; i < nb_vm; i++) {
domname = libxl_domid_to_name(&ctx, info[i].domid);
printf(LIBXL_UUID_FMT " %d %-30s\n", LIBXL_UUID_BYTES(info[i].uuid),
info[i].domid, domname);
free(domname);
}
free(info);
}
static void save_domain_core_begin(char *domain_spec,
const char *override_config_file,
uint8_t **config_data_r,
int *config_len_r)
{
int rc;
find_domain(domain_spec);
/* configuration file in optional data: */
if (override_config_file) {
void *config_v = 0;
rc = libxl_read_file_contents(&ctx, override_config_file,
&config_v, config_len_r);
*config_data_r = config_v;
} else {
rc = libxl_userdata_retrieve(&ctx, domid, "xl",
config_data_r, config_len_r);
}
if (rc) {
fputs("Unable to get config file\n",stderr);
exit(2);
}
}
static void save_domain_core_writeconfig(int fd, const char *filename,
const uint8_t *config_data, int config_len)
{
struct save_file_header hdr;
uint8_t *optdata_begin;
union { uint32_t u32; char b[4]; } u32buf;
memset(&hdr, 0, sizeof(hdr));
memcpy(hdr.magic, savefileheader_magic, sizeof(hdr.magic));
hdr.byteorder = SAVEFILE_BYTEORDER_VALUE;
optdata_begin= 0;
#define ADD_OPTDATA(ptr, len) ({ \
if ((len)) { \
hdr.optional_data_len += (len); \
optdata_begin = xrealloc(optdata_begin, hdr.optional_data_len); \
memcpy(optdata_begin + hdr.optional_data_len - (len), \
(ptr), (len)); \
} \
})
u32buf.u32 = config_len;
ADD_OPTDATA(u32buf.b, 4);
ADD_OPTDATA(config_data, config_len);
/* that's the optional data */
CHK_ERRNO( libxl_write_exactly(&ctx, fd,
&hdr, sizeof(hdr), filename, "header") );
CHK_ERRNO( libxl_write_exactly(&ctx, fd,
optdata_begin, hdr.optional_data_len, filename, "header") );
fprintf(stderr, "Saving to %s new xl format (info"
" 0x%"PRIx32"/0x%"PRIx32"/%"PRIu32")\n",
filename, hdr.mandatory_flags, hdr.optional_flags,
hdr.optional_data_len);
}
static int save_domain(char *p, char *filename, int checkpoint,
const char *override_config_file)
{
int fd;
uint8_t *config_data;
int config_len;
save_domain_core_begin(p, override_config_file, &config_data, &config_len);
if (!config_len) {
fputs(" Savefile will not contain xl domain config\n", stderr);
}
fd = open(filename, O_WRONLY|O_CREAT|O_TRUNC, 0644);
if (fd < 0) {
fprintf(stderr, "Failed to open temp file %s for writing\n", filename);
exit(2);
}
save_domain_core_writeconfig(fd, filename, config_data, config_len);
CHK_ERRNO(libxl_domain_suspend(&ctx, NULL, domid, fd));
close(fd);
if (checkpoint)
libxl_domain_unpause(&ctx, domid);
else
libxl_domain_destroy(&ctx, domid, 0);
exit(0);
}
static int migrate_read_fixedmessage(int fd, const void *msg, int msgsz,
const char *what, const char *rune) {
char buf[msgsz];
const char *stream;
int rc;
stream = rune ? "migration receiver stream" : "migration stream";
rc = libxl_read_exactly(&ctx, fd, buf, msgsz, stream, what);
if (rc) return ERROR_FAIL;
if (memcmp(buf, msg, msgsz)) {
fprintf(stderr, "%s contained unexpected data instead of %s\n",
stream, what);
if (rune)
fprintf(stderr, "(command run was: %s )\n", rune);
return ERROR_FAIL;
}
return 0;
}
static void migration_child_report(pid_t migration_child, int recv_fd) {
pid_t child;
int status, sr;
struct timeval now, waituntil, timeout;
static const struct timeval pollinterval = { 0, 1000 }; /* 1ms */
if (!migration_child) return;
CHK_ERRNO( gettimeofday(&waituntil, 0) );
waituntil.tv_sec += 2;
for (;;) {
child = waitpid(migration_child, &status, WNOHANG);
if (child == migration_child) {
if (status)
libxl_report_child_exitstatus(&ctx, XTL_INFO,
"migration target process",
migration_child, status);
break;
}
if (child == -1) {
if (errno == EINTR) continue;
fprintf(stderr, "wait for migration child [%ld] failed: %s\n",
(long)migration_child, strerror(errno));
break;
}
assert(child == 0);
CHK_ERRNO( gettimeofday(&now, 0) );
if (timercmp(&now, &waituntil, >)) {
fprintf(stderr, "migration child [%ld] not exiting, no longer"
" waiting (exit status will be unreported)\n",
(long)migration_child);
break;
}
timersub(&waituntil, &now, &timeout);
if (recv_fd >= 0) {
fd_set readfds, exceptfds;
FD_ZERO(&readfds);
FD_ZERO(&exceptfds);
FD_SET(recv_fd, &readfds);
FD_SET(recv_fd, &exceptfds);
sr = select(recv_fd+1, &readfds,0,&exceptfds, &timeout);
} else {
if (timercmp(&timeout, &pollinterval, >))
timeout = pollinterval;
sr = select(0,0,0,0, &timeout);
}
if (sr > 0) {
recv_fd = -1;
} else if (sr == 0) {
} else if (sr == -1) {
if (errno != EINTR) {
fprintf(stderr, "migration child [%ld] exit wait select"
" failed unexpectedly: %s\n",
(long)migration_child, strerror(errno));
break;
}
}
}
migration_child = 0;
}
static void migrate_domain(char *domain_spec, const char *rune,
const char *override_config_file)
{
pid_t child = -1;
int rc;
int sendpipe[2], recvpipe[2];
int send_fd, recv_fd;
libxl_domain_suspend_info suspinfo;
char *away_domname;
char rc_buf;
uint8_t *config_data;
int config_len;
save_domain_core_begin(domain_spec, override_config_file,
&config_data, &config_len);
if (!config_len) {
fprintf(stderr, "No config file stored for running domain and "
"none supplied - cannot migrate.\n");
exit(1);
}
MUST( libxl_pipe(&ctx, sendpipe) );
MUST( libxl_pipe(&ctx, recvpipe) );
child = libxl_fork(&ctx);
if (child==-1) exit(1);
if (!child) {
dup2(sendpipe[0], 0);
dup2(recvpipe[1], 1);
close(sendpipe[0]); close(sendpipe[1]);
close(recvpipe[0]); close(recvpipe[1]);
execlp("sh","sh","-c",rune,(char*)0);
perror("failed to exec sh");
exit(-1);
}
close(sendpipe[0]);
close(recvpipe[1]);
send_fd = sendpipe[1];
recv_fd = recvpipe[0];
signal(SIGPIPE, SIG_IGN);
/* if receiver dies, we get an error and can clean up
rather than just dying */
rc = migrate_read_fixedmessage(recv_fd, migrate_receiver_banner,
sizeof(migrate_receiver_banner)-1,
"banner", rune);
if (rc) {
close(send_fd);
migration_child_report(child, recv_fd);
exit(-rc);
}
save_domain_core_writeconfig(send_fd, "migration stream",
config_data, config_len);
xtl_stdiostream_adjust_flags(logger, XTL_STDIOSTREAM_HIDE_PROGRESS, 0);
memset(&suspinfo, 0, sizeof(suspinfo));
suspinfo.flags |= XL_SUSPEND_LIVE;
rc = libxl_domain_suspend(&ctx, &suspinfo, domid, send_fd);
if (rc) {
fprintf(stderr, "migration sender: libxl_domain_suspend failed"
" (rc=%d)\n", rc);
goto failed_resume;
}
//fprintf(stderr, "migration sender: Transfer complete.\n");
// Should only be printed when debugging as it's a bit messy with
// progress indication.
rc = migrate_read_fixedmessage(recv_fd, migrate_receiver_ready,
sizeof(migrate_receiver_ready),
"ready message", rune);
if (rc) goto failed_resume;
xtl_stdiostream_adjust_flags(logger, 0, XTL_STDIOSTREAM_HIDE_PROGRESS);
/* right, at this point we are about give the destination
* permission to rename and resume, so we must first rename the
* domain away ourselves */
fprintf(stderr, "migration sender: Target has acknowledged transfer.\n");
if (common_domname) {
if (asprintf(&away_domname, "%s--migratedaway", common_domname) < 0)
goto failed_resume;
rc = libxl_domain_rename(&ctx, domid,
common_domname, away_domname, 0);
if (rc) goto failed_resume;
}
/* point of no return - as soon as we have tried to say
* "go" to the receiver, it's not safe to carry on. We leave
* the domain renamed to %s--migratedaway in case that's helpful.
*/
fprintf(stderr, "migration sender: Giving target permission to start.\n");
rc = libxl_write_exactly(&ctx, send_fd,
migrate_permission_to_go,
sizeof(migrate_permission_to_go),
"migration stream", "GO message");
if (rc) goto failed_badly;
rc = migrate_read_fixedmessage(recv_fd, migrate_report,
sizeof(migrate_report),
"success/failure report message", rune);
if (rc) goto failed_badly;
rc = libxl_read_exactly(&ctx, recv_fd,
&rc_buf, 1,
"migration ack stream", "success/failure status");
if (rc) goto failed_badly;
if (rc_buf) {
fprintf(stderr, "migration sender: Target reports startup failure"
" (status code %d).\n", rc_buf);
rc = migrate_read_fixedmessage(recv_fd, migrate_permission_to_go,
sizeof(migrate_permission_to_go),
"permission for sender to resume",
rune);
if (rc) goto failed_badly;
fprintf(stderr, "migration sender: Trying to resume at our end.\n");
if (common_domname) {
libxl_domain_rename(&ctx, domid,
away_domname, common_domname, 0);
}
rc = libxl_domain_resume(&ctx, domid);
if (!rc) fprintf(stderr, "migration sender: Resumed OK.\n");
fprintf(stderr, "Migration failed due to problems at target.\n");
exit(-ERROR_FAIL);
}
fprintf(stderr, "migration sender: Target reports successful startup.\n");
libxl_domain_destroy(&ctx, domid, 1); /* bang! */
fprintf(stderr, "Migration successful.\n");
exit(0);
failed_resume:
close(send_fd);
migration_child_report(child, recv_fd);
fprintf(stderr, "Migration failed, resuming at sender.\n");
libxl_domain_resume(&ctx, domid);
exit(-ERROR_FAIL);
failed_badly:
fprintf(stderr,
"** Migration failed during final handshake **\n"
"Domain state is now undefined !\n"
"Please CHECK AT BOTH ENDS for running instances, before renaming and\n"
" resuming at most one instance. Two simultaneous instances of the domain\n"
" would probably result in SEVERE DATA LOSS and it is now your\n"
" responsibility to avoid that. Sorry.\n");
close(send_fd);
migration_child_report(child, recv_fd);
exit(-ERROR_BADFAIL);
}
static void core_dump_domain(const char *domain_spec, const char *filename)
{
int rc;
find_domain(domain_spec);
rc=libxl_domain_core_dump(&ctx, domid, filename);
if (rc) { fprintf(stderr,"core dump failed (rc=%d)\n.",rc);exit(-1); }
}
static void migrate_receive(int debug, int daemonize)
{
int rc, rc2;
char rc_buf;
char *migration_domname;
struct domain_create dom_info;
signal(SIGPIPE, SIG_IGN);
/* if we get SIGPIPE we'd rather just have it as an error */
fprintf(stderr, "migration target: Ready to receive domain.\n");
CHK_ERRNO( libxl_write_exactly(&ctx, 1,
migrate_receiver_banner,
sizeof(migrate_receiver_banner)-1,
"migration ack stream",
"banner") );
memset(&dom_info, 0, sizeof(dom_info));
dom_info.debug = debug;
dom_info.daemonize = daemonize;
dom_info.paused = 1;
dom_info.restore_file = "incoming migration stream";
dom_info.migration_domname_r = &migration_domname;
rc = create_domain(&dom_info);
if (rc < 0) {
fprintf(stderr, "migration target: Domain creation failed"
" (code %d).\n", rc);
exit(-rc);
}
fprintf(stderr, "migration target: Transfer complete,"
" requesting permission to start domain.\n");
rc = libxl_write_exactly(&ctx, 1,
migrate_receiver_ready,
sizeof(migrate_receiver_ready),
"migration ack stream", "ready message");
if (rc) exit(-rc);
rc = migrate_read_fixedmessage(0, migrate_permission_to_go,
sizeof(migrate_permission_to_go),
"GO message", 0);
if (rc) goto perhaps_destroy_notify_rc;
fprintf(stderr, "migration target: Got permission, starting domain.\n");
if (migration_domname) {
rc = libxl_domain_rename(&ctx, domid,
migration_domname, common_domname, 0);
if (rc) goto perhaps_destroy_notify_rc;
}
rc = libxl_domain_unpause(&ctx, domid);
if (rc) goto perhaps_destroy_notify_rc;
fprintf(stderr, "migration target: Domain started successsfully.\n");
rc = 0;
perhaps_destroy_notify_rc:
rc2 = libxl_write_exactly(&ctx, 1,
migrate_report, sizeof(migrate_report),
"migration ack stream",
"success/failure report");
if (rc2) exit(-ERROR_BADFAIL);
rc_buf = -rc;
assert(!!rc_buf == !!rc);
rc2 = libxl_write_exactly(&ctx, 1, &rc_buf, 1,
"migration ack stream",
"success/failure code");
if (rc2) exit(-ERROR_BADFAIL);
if (rc) {
fprintf(stderr, "migration target: Failure, destroying our copy.\n");
rc2 = libxl_domain_destroy(&ctx, domid, 1);
if (rc2) {
fprintf(stderr, "migration target: Failed to destroy our copy"
" (code %d).\n", rc2);
exit(-ERROR_BADFAIL);
}
fprintf(stderr, "migration target: Cleanup OK, granting sender"
" permission to resume.\n");
rc2 = libxl_write_exactly(&ctx, 1,
migrate_permission_to_go,
sizeof(migrate_permission_to_go),
"migration ack stream",
"permission to sender to have domain back");
if (rc2) exit(-ERROR_BADFAIL);
}
exit(0);
}
int main_restore(int argc, char **argv)
{
char *checkpoint_file = NULL;
char *config_file = NULL;
struct domain_create dom_info;
int paused = 0, debug = 0, daemonize = 1, console_autoconnect = 0;
int opt, rc;
while ((opt = getopt(argc, argv, "chpde")) != -1) {
switch (opt) {
case 'c':
console_autoconnect = 1;
break;
case 'p':
paused = 1;
break;
case 'd':
debug = 1;
break;
case 'e':
daemonize = 0;
break;
case 'h':
help("restore");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (argc-optind == 1) {
checkpoint_file = argv[optind];
} else if (argc-optind == 2) {
config_file = argv[optind];
checkpoint_file = argv[optind + 1];
} else {
help("restore");
return 2;
}
memset(&dom_info, 0, sizeof(dom_info));
dom_info.debug = debug;
dom_info.daemonize = daemonize;
dom_info.paused = paused;
dom_info.config_file = config_file;
dom_info.restore_file = checkpoint_file;
dom_info.migrate_fd = -1;
dom_info.console_autoconnect = console_autoconnect;
rc = create_domain(&dom_info);
if (rc < 0)
return -rc;
return 0;
}
int main_migrate_receive(int argc, char **argv)
{
int debug = 0, daemonize = 1;
int opt;
while ((opt = getopt(argc, argv, "hed")) != -1) {
switch (opt) {
case 'h':
help("migrate-receive");
return 2;
break;
case 'e':
daemonize = 0;
break;
case 'd':
debug = 1;
break;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (argc-optind != 0) {
help("migrate-receive");
return 2;
}
migrate_receive(debug, daemonize);
return 0;
}
int main_save(int argc, char **argv)
{
char *filename = NULL, *p = NULL;
const char *config_filename;
int checkpoint = 0;
int opt;
while ((opt = getopt(argc, argv, "hc")) != -1) {
switch (opt) {
case 'c':
checkpoint = 1;
break;
case 'h':
help("save");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (argc-optind < 1 || argc-optind > 3) {
help("save");
return 2;
}
p = argv[optind];
filename = argv[optind + 1];
config_filename = argv[optind + 2];
save_domain(p, filename, checkpoint, config_filename);
return 0;
}
int main_migrate(int argc, char **argv)
{
char *p = NULL;
const char *config_filename = NULL;
const char *ssh_command = "ssh";
char *rune = NULL;
char *host;
int opt, daemonize = 1, debug = 0;
while ((opt = getopt(argc, argv, "hC:s:ed")) != -1) {
switch (opt) {
case 'h':
help("migrate");
return 0;
case 'C':
config_filename = optarg;
break;
case 's':
ssh_command = optarg;
break;
case 'e':
daemonize = 0;
break;
case 'd':
debug = 1;
break;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (argc-optind < 2 || argc-optind > 2) {
help("migrate");
return 2;
}
p = argv[optind];
host = argv[optind + 1];
if (!ssh_command[0]) {
rune= host;
} else {
if (asprintf(&rune, "exec %s %s xl migrate-receive%s%s",
ssh_command, host,
daemonize ? "" : " -e",
debug ? " -d" : "") < 0)
return 1;
}
migrate_domain(p, rune, config_filename);
return 0;
}
int main_dump_core(int argc, char **argv)
{
int opt;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("dump-core");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
if ( argc-optind < 2 ) {
help("dump-core");
return 2;
}
core_dump_domain(argv[optind], argv[optind + 1]);
return 0;
}
int main_pause(int argc, char **argv)
{
int opt;
char *p;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("pause");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc) {
help("pause");
return 2;
}
p = argv[optind];
pause_domain(p);
return 0;
}
int main_unpause(int argc, char **argv)
{
int opt;
char *p;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("unpause");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc) {
help("unpause");
return 2;
}
p = argv[optind];
unpause_domain(p);
return 0;
}
int main_destroy(int argc, char **argv)
{
int opt;
char *p;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("destroy");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc) {
help("destroy");
return 2;
}
p = argv[optind];
destroy_domain(p);
return 0;
}
int main_shutdown(int argc, char **argv)
{
int opt;
char *p;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("shutdown");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc) {
help("shutdown");
return 2;
}
p = argv[optind];
shutdown_domain(p);
return 0;
}
int main_reboot(int argc, char **argv)
{
int opt;
char *p;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("reboot");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc) {
help("reboot");
return 2;
}
p = argv[optind];
reboot_domain(p);
return 0;
}
int main_list(int argc, char **argv)
{
int opt, verbose = 0;
int details = 0;
int option_index = 0;
static struct option long_options[] = {
{"long", 0, 0, 'l'},
{"help", 0, 0, 'h'},
{"verbose", 0, 0, 'v'},
{0, 0, 0, 0}
};
libxl_dominfo info_buf;
libxl_dominfo *info, *info_free=0;
int nb_domain, rc;
while (1) {
opt = getopt_long(argc, argv, "lvh", long_options, &option_index);
if (opt == -1)
break;
switch (opt) {
case 'l':
details = 1;
break;
case 'h':
help("list");
return 0;
case 'v':
verbose = 1;
break;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc) {
info = libxl_list_domain(&ctx, &nb_domain);
if (!info) {
fprintf(stderr, "libxl_domain_infolist failed.\n");
return 1;
}
info_free = info;
} else if (optind == argc-1) {
find_domain(argv[optind]);
rc = libxl_domain_info(&ctx, &info_buf, domid);
if (rc == ERROR_INVAL) {
fprintf(stderr, "Error: Domain \'%s\' does not exist.\n",
argv[optind]);
return -rc;
}
if (rc) {
fprintf(stderr, "libxl_domain_info failed (code %d).\n", rc);
return -rc;
}
info = &info_buf;
nb_domain = 1;
} else {
help("list");
return 2;
}
if (details)
list_domains_details(info, nb_domain);
else
list_domains(verbose, info, nb_domain);
free(info_free);
return 0;
}
int main_list_vm(int argc, char **argv)
{
int opt;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("list-vm");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
list_vm();
return 0;
}
int main_create(int argc, char **argv)
{
char *filename = NULL;
char *p, extra_config[1024];
struct domain_create dom_info;
int paused = 0, debug = 0, daemonize = 1, console_autoconnect = 0,
dryrun = 0, quiet = 0;
int opt, rc;
int option_index = 0;
static struct option long_options[] = {
{"dryrun", 0, 0, 'n'},
{"quiet", 0, 0, 'q'},
{"help", 0, 0, 'h'},
{"defconfig", 1, 0, 'f'},
{0, 0, 0, 0}
};
while (1) {
opt = getopt_long(argc, argv, "hnqf:pcde", long_options, &option_index);
if (opt == -1)
break;
switch (opt) {
case 'f':
filename = optarg;
break;
case 'p':
paused = 1;
break;
case 'c':
console_autoconnect = 1;
break;
case 'd':
debug = 1;
break;
case 'e':
daemonize = 0;
break;
case 'h':
help("create");
return 0;
case 'n':
dryrun = 1;
break;
case 'q':
quiet = 1;
break;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
extra_config[0] = '\0';
for (p = extra_config; optind < argc; optind++) {
if (strchr(argv[optind], '=') != NULL) {
p += snprintf(p, sizeof(extra_config) - (p - extra_config),
"%s\n", argv[optind]);
} else if (!filename) {
filename = argv[optind];
} else {
help("create");
return 2;
}
}
memset(&dom_info, 0, sizeof(dom_info));
dom_info.debug = debug;
dom_info.daemonize = daemonize;
dom_info.paused = paused;
dom_info.dryrun = dryrun;
dom_info.quiet = quiet;
dom_info.config_file = filename;
dom_info.extra_config = extra_config;
dom_info.migrate_fd = -1;
dom_info.console_autoconnect = console_autoconnect;
rc = create_domain(&dom_info);
if (rc < 0)
return -rc;
return 0;
}
static void button_press(char *p, char *b)
{
libxl_button button;
find_domain(p);
if (!strcmp(b, "power")) {
button = POWER_BUTTON;
} else if (!strcmp(b, "sleep")) {
button = SLEEP_BUTTON;
} else {
fprintf(stderr, "%s is an invalid button identifier\n", b);
exit(2);
}
libxl_button_press(&ctx, domid, button);
}
int main_button_press(int argc, char **argv)
{
int opt;
char *p;
char *b;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("button-press");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc - 1) {
help("button-press");
return 2;
}
p = argv[optind];
b = argv[optind + 1];
button_press(p, b);
return 0;
}
static void print_vcpuinfo(uint32_t tdomid,
const libxl_vcpuinfo *vcpuinfo,
uint32_t nr_cpus)
{
int i, l;
uint64_t *cpumap;
uint64_t pcpumap;
char *domname;
/* NAME ID VCPU */
domname = libxl_domid_to_name(&ctx, tdomid);
printf("%-32s %5u %5u",
domname, tdomid, vcpuinfo->vcpuid);
free(domname);
if (!vcpuinfo->online) {
/* CPU STA */
printf("%5c %3c%cp ", '-', '-', '-');
} else {
/* CPU STA */
printf("%5u %3c%c- ", vcpuinfo->cpu,
vcpuinfo->running ? 'r' : '-',
vcpuinfo->blocked ? 'b' : '-');
}
/* TIM */
printf("%9.1f ", ((float)vcpuinfo->vcpu_time / 1e9));
/* CPU AFFINITY */
pcpumap = nr_cpus > 64 ? (uint64_t)-1 : ((1ULL << nr_cpus) - 1);
for (cpumap = vcpuinfo->cpumap; nr_cpus; ++cpumap) {
if (*cpumap < pcpumap) {
break;
}
if (nr_cpus > 64) {
pcpumap = -1;
nr_cpus -= 64;
} else {
pcpumap = ((1 << nr_cpus) - 1);
nr_cpus = 0;
}
}
if (!nr_cpus) {
printf("any cpu\n");
} else {
for (cpumap = vcpuinfo->cpumap; nr_cpus; ++cpumap) {
pcpumap = *cpumap;
for (i = 0; !(pcpumap & 1); ++i, pcpumap >>= 1)
;
printf("%u", i);
for (l = i, pcpumap = (pcpumap >> 1); (pcpumap & 1); ++i, pcpumap >>= 1)
;
if (l < i) {
printf("-%u", i);
}
for (++i; pcpumap; ++i, pcpumap >>= 1) {
if (pcpumap & 1) {
printf(",%u", i);
for (l = i, pcpumap = (pcpumap >> 1); (pcpumap & 1); ++i, pcpumap >>= 1)
;
if (l < i) {
printf("-%u", i);
}
++i;
}
}
printf("\n");
nr_cpus = nr_cpus > 64 ? nr_cpus - 64 : 0;
}
}
}
static void print_domain_vcpuinfo(uint32_t domid, uint32_t nr_cpus)
{
libxl_vcpuinfo *vcpuinfo;
int i, nb_vcpu, nrcpus;
vcpuinfo = libxl_list_vcpu(&ctx, domid, &nb_vcpu, &nrcpus);
if (!vcpuinfo) {
fprintf(stderr, "libxl_list_vcpu failed.\n");
return;
}
for (i = 0; i < nb_vcpu; i++) {
print_vcpuinfo(domid, &vcpuinfo[i], nr_cpus);
libxl_vcpuinfo_destroy(&vcpuinfo[i]);
}
free(vcpuinfo);
}
static void vcpulist(int argc, char **argv)
{
libxl_dominfo *dominfo;
libxl_physinfo physinfo;
int i, nb_domain;
if (libxl_get_physinfo(&ctx, &physinfo) != 0) {
fprintf(stderr, "libxl_physinfo failed.\n");
goto vcpulist_out;
}
printf("%-32s %5s %5s %5s %5s %9s %s\n",
"Name", "ID", "VCPU", "CPU", "State", "Time(s)", "CPU Affinity");
if (!argc) {
if (!(dominfo = libxl_list_domain(&ctx, &nb_domain))) {
fprintf(stderr, "libxl_list_domain failed.\n");
goto vcpulist_out;
}
for (i = 0; i<nb_domain; i++)
print_domain_vcpuinfo(dominfo[i].domid, physinfo.nr_cpus);
free(dominfo);
} else {
for (; argc > 0; ++argv, --argc) {
if (domain_qualifier_to_domid(*argv, &domid, 0) < 0) {
fprintf(stderr, "%s is an invalid domain identifier\n", *argv);
goto vcpulist_out;
}
print_domain_vcpuinfo(domid, physinfo.nr_cpus);
}
}
vcpulist_out:
;
}
int main_vcpulist(int argc, char **argv)
{
int opt;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("vcpu-list");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
vcpulist(argc - 2, argv + 2);
return 0;
}
static void vcpupin(char *d, const char *vcpu, char *cpu)
{
libxl_vcpuinfo *vcpuinfo;
libxl_physinfo physinfo;
uint64_t *cpumap = NULL;
uint32_t vcpuid, cpuida, cpuidb;
char *endptr, *toka, *tokb;
int i, nb_vcpu, cpusize;
vcpuid = strtoul(vcpu, &endptr, 10);
if (vcpu == endptr) {
if (strcmp(vcpu, "all")) {
fprintf(stderr, "Error: Invalid argument.\n");
return;
}
vcpuid = -1;
}
find_domain(d);
if (libxl_get_physinfo(&ctx, &physinfo) != 0) {
fprintf(stderr, "libxl_get_physinfo failed.\n");
goto vcpupin_out1;
}
cpumap = calloc(physinfo.max_cpu_id + 1, sizeof (uint64_t));
if (!cpumap) {
goto vcpupin_out1;
}
if (strcmp(cpu, "all")) {
for (toka = strtok(cpu, ","), i = 0; toka; toka = strtok(NULL, ","), ++i) {
cpuida = strtoul(toka, &endptr, 10);
if (toka == endptr) {
fprintf(stderr, "Error: Invalid argument.\n");
goto vcpupin_out;
}
if (*endptr == '-') {
tokb = endptr + 1;
cpuidb = strtoul(tokb, &endptr, 10);
if ((tokb == endptr) || (cpuida > cpuidb)) {
fprintf(stderr, "Error: Invalid argument.\n");
goto vcpupin_out;
}
while (cpuida <= cpuidb) {
cpumap[cpuida / 64] |= (1 << (cpuida % 64));
++cpuida;
}
} else {
cpumap[cpuida / 64] |= (1 << (cpuida % 64));
}
}
}
else {
memset(cpumap, -1, sizeof (uint64_t) * (physinfo.max_cpu_id + 1));
}
if (vcpuid != -1) {
if (libxl_set_vcpuaffinity(&ctx, domid, vcpuid,
cpumap, physinfo.max_cpu_id + 1) == -1) {
fprintf(stderr, "Could not set affinity for vcpu `%u'.\n", vcpuid);
}
}
else {
if (!(vcpuinfo = libxl_list_vcpu(&ctx, domid, &nb_vcpu, &cpusize))) {
fprintf(stderr, "libxl_list_vcpu failed.\n");
goto vcpupin_out;
}
for (; nb_vcpu > 0; --nb_vcpu, ++vcpuinfo) {
if (libxl_set_vcpuaffinity(&ctx, domid, vcpuinfo->vcpuid,
cpumap, physinfo.max_cpu_id + 1) == -1) {
fprintf(stderr, "libxl_list_vcpu failed on vcpu `%u'.\n", vcpuinfo->vcpuid);
}
}
}
vcpupin_out1:
free(cpumap);
vcpupin_out:
;
}
int main_vcpupin(int argc, char **argv)
{
int opt;
if (argc != 5) {
help("vcpu-pin");
return 0;
}
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("vcpu-pin");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
vcpupin(argv[2], argv[3] , argv[4]);
return 0;
}
static void vcpuset(char *d, char* nr_vcpus)
{
char *endptr;
unsigned int max_vcpus, i;
uint32_t bitmask = 0;
max_vcpus = strtoul(nr_vcpus, &endptr, 10);
if (nr_vcpus == endptr) {
fprintf(stderr, "Error: Invalid argument.\n");
return;
}
find_domain(d);
for (i = 0; i < max_vcpus; i++)
bitmask |= 1 << i;
if (libxl_set_vcpuonline(&ctx, domid, bitmask) < 0)
fprintf(stderr, "libxl_set_vcpuonline failed domid=%d bitmask=%x\n", domid, bitmask);
}
int main_vcpuset(int argc, char **argv)
{
int opt;
if (argc != 4) {
help("vcpu-set");
return 0;
}
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("vcpu-set");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
vcpuset(argv[2], argv[3]);
return 0;
}
static void output_xeninfo(void)
{
const libxl_version_info *info;
int sched_id;
if (!(info = libxl_get_version_info(&ctx))) {
fprintf(stderr, "libxl_get_version_info failed.\n");
return;
}
if ((sched_id = libxl_get_sched_id(&ctx)) < 0) {
fprintf(stderr, "get_sched_id sysctl failed.\n");
return;
}
printf("xen_major : %d\n", info->xen_version_major);
printf("xen_minor : %d\n", info->xen_version_minor);
printf("xen_extra : %s\n", info->xen_version_extra);
printf("xen_caps : %s\n", info->capabilities);
printf("xen_scheduler : %s\n",
sched_id == XEN_SCHEDULER_SEDF ? "sedf" :
sched_id == XEN_SCHEDULER_CREDIT ? "credit" :
sched_id == XEN_SCHEDULER_CREDIT2 ? "credit2" : "unknown");
printf("xen_pagesize : %lu\n", info->pagesize);
printf("platform_params : virt_start=0x%lx\n", info->virt_start);
printf("xen_changeset : %s\n", info->changeset);
printf("xen_commandline : %s\n", info->commandline);
printf("cc_compiler : %s\n", info->compiler);
printf("cc_compile_by : %s\n", info->compile_by);
printf("cc_compile_domain : %s\n", info->compile_domain);
printf("cc_compile_date : %s\n", info->compile_date);
return;
}
static void output_nodeinfo(void)
{
struct utsname utsbuf;
if (uname(&utsbuf) < 0)
return;
printf("host : %s\n", utsbuf.nodename);
printf("release : %s\n", utsbuf.release);
printf("version : %s\n", utsbuf.version);
printf("machine : %s\n", utsbuf.machine);
}
static void output_physinfo(void)
{
libxl_physinfo info;
const libxl_version_info *vinfo;
unsigned int i;
if (libxl_get_physinfo(&ctx, &info) != 0) {
fprintf(stderr, "libxl_physinfo failed.\n");
return;
}
printf("nr_cpus : %d\n", info.nr_cpus);
printf("nr_nodes : %d\n", info.nr_nodes);
printf("cores_per_socket : %d\n", info.cores_per_socket);
printf("threads_per_core : %d\n", info.threads_per_core);
printf("cpu_mhz : %d\n", info.cpu_khz / 1000);
printf("hw_caps : ");
for (i = 0; i < 8; i++)
printf("%08x%c", info.hw_cap[i], i < 7 ? ':' : '\n');
printf("virt_caps :");
if (info.phys_cap & XEN_SYSCTL_PHYSCAP_hvm)
printf(" hvm");
if (info.phys_cap & XEN_SYSCTL_PHYSCAP_hvm_directio)
printf(" hvm_directio");
printf("\n");
vinfo = libxl_get_version_info(&ctx);
if (vinfo) {
i = (1 << 20) / vinfo->pagesize;
printf("total_memory : %"PRIu64"\n", info.total_pages / i);
printf("free_memory : %"PRIu64"\n", info.free_pages / i);
}
return;
}
static void info(void)
{
output_nodeinfo();
output_physinfo();
output_xeninfo();
printf("xend_config_format : 4\n");
return;
}
int main_info(int argc, char **argv)
{
int opt;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("info");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
info();
return 0;
}
static int sched_credit_domain_get(
int domid, libxl_sched_credit *scinfo)
{
int rc;
rc = libxl_sched_credit_domain_get(&ctx, domid, scinfo);
if (rc)
fprintf(stderr, "libxl_sched_credit_domain_get failed.\n");
return rc;
}
static int sched_credit_domain_set(
int domid, libxl_sched_credit *scinfo)
{
int rc;
rc = libxl_sched_credit_domain_set(&ctx, domid, scinfo);
if (rc)
fprintf(stderr, "libxl_sched_credit_domain_set failed.\n");
return rc;
}
static void sched_credit_domain_output(
int domid, libxl_sched_credit *scinfo)
{
char *domname;
domname = libxl_domid_to_name(&ctx, domid);
printf("%-33s %4d %6d %4d\n",
domname,
domid,
scinfo->weight,
scinfo->cap);
free(domname);
}
int main_sched_credit(int argc, char **argv)
{
libxl_dominfo *info;
libxl_sched_credit scinfo;
int nb_domain, i;
char *dom = NULL;
int weight = 256, cap = 0, opt_w = 0, opt_c = 0;
int opt, rc;
while ((opt = getopt(argc, argv, "hd:w:c:")) != -1) {
switch (opt) {
case 'd':
dom = optarg;
break;
case 'w':
weight = strtol(optarg, NULL, 10);
opt_w = 1;
break;
case 'c':
cap = strtol(optarg, NULL, 10);
opt_c = 1;
break;
case 'h':
help("sched-credit");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
if (!dom && (opt_w || opt_c)) {
fprintf(stderr, "Must specify a domain.\n");
return 1;
}
if (!dom) { /* list all domain's credit scheduler info */
info = libxl_list_domain(&ctx, &nb_domain);
if (!info) {
fprintf(stderr, "libxl_domain_infolist failed.\n");
return 1;
}
printf("%-33s %4s %6s %4s\n", "Name", "ID", "Weight", "Cap");
for (i = 0; i < nb_domain; i++) {
rc = sched_credit_domain_get(info[i].domid, &scinfo);
if (rc)
return -rc;
sched_credit_domain_output(info[i].domid, &scinfo);
}
} else {
find_domain(dom);
rc = sched_credit_domain_get(domid, &scinfo);
if (rc)
return -rc;
if (!opt_w && !opt_c) { /* output credit scheduler info */
printf("%-33s %4s %6s %4s\n", "Name", "ID", "Weight", "Cap");
sched_credit_domain_output(domid, &scinfo);
} else { /* set credit scheduler paramaters */
if (opt_w)
scinfo.weight = weight;
if (opt_c)
scinfo.cap = cap;
rc = sched_credit_domain_set(domid, &scinfo);
if (rc)
return -rc;
}
}
return 0;
}
int main_domid(int argc, char **argv)
{
int opt;
char *domname = NULL;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("domid");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
domname = argv[optind];
if (!domname) {
fprintf(stderr, "Must specify a domain name.\n\n");
help("domid");
return 1;
}
if (libxl_name_to_domid(&ctx, domname, &domid)) {
fprintf(stderr, "Can't get domid of domain name '%s', maybe this domain does not exist.\n", domname);
return 1;
}
printf("%d\n", domid);
return 0;
}
int main_domname(int argc, char **argv)
{
int opt;
char *domname = NULL;
char *endptr = NULL;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("domname");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
if (!argv[optind]) {
fprintf(stderr, "Must specify a domain id.\n\n");
help("domname");
return 1;
}
domid = strtol(argv[optind], &endptr, 10);
if (domid == 0 && !strcmp(endptr, argv[optind])) {
/*no digits at all*/
fprintf(stderr, "Invalid domain id.\n\n");
return 1;
}
domname = libxl_domid_to_name(&ctx, domid);
if (!domname) {
fprintf(stderr, "Can't get domain name of domain id '%d', maybe this domain does not exist.\n", domid);
return 1;
}
printf("%s\n", domname);
free(domname);
return 0;
}
int main_rename(int argc, char **argv)
{
int opt;
char *dom;
char *new_name;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("rename");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
dom = argv[optind++];
if (!dom || !argv[optind]) {
fprintf(stderr, "'xl rename' requires 2 arguments.\n\n");
help("rename");
return 1;
}
find_domain(dom);
new_name = argv[optind];
if (libxl_domain_rename(&ctx, domid, common_domname, new_name, 0)) {
fprintf(stderr, "Can't rename domain '%s'.\n", dom);
return 1;
}
return 0;
}
int main_trigger(int argc, char **argv)
{
int opt;
char *trigger_name = NULL;
char *endptr = NULL;
char *dom = NULL;
int vcpuid = 0;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("trigger");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
dom = argv[optind++];
if (!dom || !argv[optind]) {
fprintf(stderr, "'xl trigger' requires between 2 and 3 arguments.\n\n");
help("trigger");
return 1;
}
find_domain(dom);
trigger_name = argv[optind++];
if (argv[optind]) {
vcpuid = strtol(argv[optind], &endptr, 10);
if (vcpuid == 0 && !strcmp(endptr, argv[optind])) {
fprintf(stderr, "Invalid vcpuid, using default vcpuid=0.\n\n");
}
}
libxl_send_trigger(&ctx, domid, trigger_name, vcpuid);
return 0;
}
int main_sysrq(int argc, char **argv)
{
int opt;
char *sysrq = NULL;
char *dom = NULL;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("sysrq");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
dom = argv[optind++];
if (!dom || !argv[optind]) {
fprintf(stderr, "'xl sysrq' requires 2 arguments.\n\n");
help("sysrq");
return 1;
}
find_domain(dom);
sysrq = argv[optind];
if (sysrq[1] != '\0') {
fprintf(stderr, "Invalid sysrq.\n\n");
help("sysrq");
return 1;
}
libxl_send_sysrq(&ctx, domid, sysrq[0]);
return 0;
}
int main_debug_keys(int argc, char **argv)
{
int opt;
char *keys;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("debug-keys");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
if (optind >= argc) {
help("debug-keys");
return 2;
}
keys = argv[optind];
if (libxl_send_debug_keys(&ctx, keys)) {
fprintf(stderr, "cannot send debug keys: %s\n", keys);
return 1;
}
return 0;
}
int main_dmesg(int argc, char **argv)
{
unsigned int clear = 0;
libxl_xen_console_reader *cr;
char *line;
int opt, ret = 1;
while ((opt = getopt(argc, argv, "hc")) != -1) {
switch (opt) {
case 'c':
clear = 1;
break;
case 'h':
help("dmesg");
return 0;
default:
fprintf(stderr, "option not supported\n");
break;
}
}
cr = libxl_xen_console_read_start(&ctx, clear);
if (!cr)
goto finish;
while ((ret = libxl_xen_console_read_line(&ctx, cr, &line)) > 0)
printf("%s", line);
finish:
libxl_xen_console_read_finish(&ctx, cr);
return ret;
}
int main_top(int argc, char **argv)
{
int opt;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("top");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
return system("xentop");
}
int main_networkattach(int argc, char **argv)
{
int opt;
libxl_device_nic nic;
char *endptr, *tok;
int i;
unsigned int val;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("network-attach");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
if ((argc-optind < 2) || (argc-optind > 11)) {
help("network-attach");
return 0;
}
if (domain_qualifier_to_domid(argv[optind], &domid, 0) < 0) {
fprintf(stderr, "%s is an invalid domain identifier\n", argv[optind]);
return 1;
}
init_nic_info(&nic, -1);
for (argv += optind+1, argc -= optind+1; argc > 0; ++argv, --argc) {
if (!strncmp("type=", *argv, 5)) {
if (!strncmp("vif", (*argv) + 5, 4)) {
nic.nictype = NICTYPE_VIF;
} else if (!strncmp("ioemu", (*argv) + 5, 5)) {
nic.nictype = NICTYPE_IOEMU;
} else {
fprintf(stderr, "Invalid parameter `type'.\n");
return 1;
}
} else if (!strncmp("mac=", *argv, 4)) {
tok = strtok((*argv) + 4, ":");
for (i = 0; tok && i < 6; tok = strtok(NULL, ":"), ++i) {
val = strtoul(tok, &endptr, 16);
if ((tok == endptr) || (val > 255)) {
fprintf(stderr, "Invalid parameter `mac'.\n");
return 1;
}
nic.mac[i] = val;
}
} else if (!strncmp("bridge=", *argv, 7)) {
nic.bridge = (*argv) + 7;
} else if (!strncmp("ip=", *argv, 3)) {
if (!inet_aton((*argv) + 3, &(nic.ip))) {
fprintf(stderr, "Invalid parameter `ip'.\n");
return 1;
}
} else if (!strncmp("script=", *argv, 6)) {
nic.script = (*argv) + 6;
} else if (!strncmp("backend=", *argv, 8)) {
if(libxl_name_to_domid(&ctx, ((*argv) + 8), &val)) {
fprintf(stderr, "Specified backend domain does not exist, defaulting to Dom0\n");
val = 0;
}
nic.backend_domid = val;
} else if (!strncmp("vifname=", *argv, 8)) {
nic.ifname = (*argv) + 8;
} else if (!strncmp("model=", *argv, 6)) {
nic.model = (*argv) + 6;
} else if (!strncmp("rate=", *argv, 5)) {
} else if (!strncmp("accel=", *argv, 6)) {
} else {
fprintf(stderr, "unrecognized argument `%s'\n", *argv);
return 1;
}
}
nic.domid = domid;
if (libxl_device_nic_add(&ctx, domid, &nic)) {
fprintf(stderr, "libxl_device_nic_add failed.\n");
return 1;
}
libxl_device_nic_destroy(&nic);
return 0;
}
int main_networklist(int argc, char **argv)
{
int opt;
libxl_nicinfo *nics;
unsigned int nb, i;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("network-list");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
if (argc-optind < 1) {
help("network-list");
return 1;
}
/* Idx BE MAC Hdl Sta evch txr/rxr BE-path */
printf("%-3s %-2s %-17s %-6s %-5s %-6s %5s/%-5s %-30s\n",
"Idx", "BE", "Mac Addr.", "handle", "state", "evt-ch", "tx-", "rx-ring-ref", "BE-path");
for (argv += optind, argc -= optind; argc > 0; --argc, ++argv) {
if (domain_qualifier_to_domid(*argv, &domid, 0) < 0) {
fprintf(stderr, "%s is an invalid domain identifier\n", *argv);
continue;
}
if (!(nics = libxl_list_nics(&ctx, domid, &nb))) {
continue;
}
for (i = 0; i < nb; ++i) {
/* Idx BE */
printf("%-3d %-2d ", nics[i].devid, nics[i].backend_id);
/* MAC */
printf("%02x:%02x:%02x:%02x:%02x:%02x ",
nics[i].mac[0], nics[i].mac[1], nics[i].mac[2],
nics[i].mac[3], nics[i].mac[4], nics[i].mac[5]);
/* Hdl Sta evch txr/rxr BE-path */
printf("%6d %5d %6d %5d/%-11d %-30s\n",
nics[i].devid, nics[i].state, nics[i].evtch,
nics[i].rref_tx, nics[i].rref_rx, nics[i].backend);
libxl_nicinfo_destroy(&nics[i]);
}
free(nics);
}
return 0;
}
int main_networkdetach(int argc, char **argv)
{
int opt;
libxl_device_nic nic;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("network-detach");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
if (argc-optind != 2) {
help("network-detach");
return 0;
}
if (domain_qualifier_to_domid(argv[optind], &domid, 0) < 0) {
fprintf(stderr, "%s is an invalid domain identifier\n", argv[optind]);
return 1;
}
if (!strchr(argv[optind+1], ':')) {
if (libxl_devid_to_device_nic(&ctx, domid, argv[optind+1], &nic)) {
fprintf(stderr, "Unknown device %s.\n", argv[optind+1]);
return 1;
}
} else {
if (libxl_mac_to_device_nic(&ctx, domid, argv[optind+1], &nic)) {
fprintf(stderr, "Unknown device %s.\n", argv[optind+1]);
return 1;
}
}
if (libxl_device_nic_del(&ctx, &nic, 1)) {
fprintf(stderr, "libxl_device_nic_del failed.\n");
return 1;
}
libxl_device_nic_destroy(&nic);
return 0;
}
int main_blockattach(int argc, char **argv)
{
int opt;
char *tok;
uint32_t fe_domid, be_domid = 0;
libxl_device_disk disk = { 0 };
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("block-attach");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
if ((argc-optind < 3) || (argc-optind > 5)) {
help("block-attach");
return 0;
}
tok = strtok(argv[optind+1], ":");
if (!strcmp(tok, "phy")) {
disk.phystype = PHYSTYPE_PHY;
} else if (!strcmp(tok, "file")) {
disk.phystype = PHYSTYPE_FILE;
} else if (!strcmp(tok, "tap")) {
tok = strtok(NULL, ":");
if (!strcmp(tok, "aio")) {
disk.phystype = PHYSTYPE_AIO;
} else if (!strcmp(tok, "vhd")) {
disk.phystype = PHYSTYPE_VHD;
} else if (!strcmp(tok, "qcow")) {
disk.phystype = PHYSTYPE_QCOW;
} else if (!strcmp(tok, "qcow2")) {
disk.phystype = PHYSTYPE_QCOW2;
} else {
fprintf(stderr, "Error: `%s' is not a valid disk image.\n", tok);
return 1;
}
} else {
fprintf(stderr, "Error: `%s' is not a valid block device.\n", tok);
return 1;
}
disk.physpath = strtok(NULL, "\0");
if (!disk.physpath) {
fprintf(stderr, "Error: missing path to disk image.\n");
return 1;
}
disk.virtpath = argv[optind+2];
disk.unpluggable = 1;
disk.readwrite = ((argc-optind <= 2) || (argv[optind+3][0] == 'w'));
if (domain_qualifier_to_domid(argv[optind], &fe_domid, 0) < 0) {
fprintf(stderr, "%s is an invalid domain identifier\n", argv[optind]);
return 1;
}
if (argc-optind == 5) {
if (domain_qualifier_to_domid(argv[optind+4], &be_domid, 0) < 0) {
fprintf(stderr, "%s is an invalid domain identifier\n", argv[optind+4]);
return 1;
}
}
disk.domid = fe_domid;
disk.backend_domid = be_domid;
if (libxl_device_disk_add(&ctx, fe_domid, &disk)) {
fprintf(stderr, "libxl_device_disk_add failed.\n");
}
return 0;
}
int main_blocklist(int argc, char **argv)
{
int opt;
int i, nb;
libxl_device_disk *disks;
libxl_diskinfo diskinfo;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("block-list");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
if (argc-optind < 1) {
help("block-list");
return 0;
}
printf("%-5s %-3s %-6s %-5s %-6s %-8s %-30s\n",
"Vdev", "BE", "handle", "state", "evt-ch", "ring-ref", "BE-path");
for (argv += optind, argc -= optind; argc > 0; --argc, ++argv) {
if (domain_qualifier_to_domid(*argv, &domid, 0) < 0) {
fprintf(stderr, "%s is an invalid domain identifier\n", *argv);
continue;
}
disks = libxl_device_disk_list(&ctx, domid, &nb);
if (!disks) {
continue;
}
for (i=0; i<nb; i++) {
if (!libxl_device_disk_getinfo(&ctx, domid, &disks[i], &diskinfo)) {
/* Vdev BE hdl st evch rref BE-path*/
printf("%-5d %-3d %-6d %-5d %-6d %-8d %-30s\n",
diskinfo.devid, diskinfo.backend_id, diskinfo.frontend_id,
diskinfo.state, diskinfo.evtch, diskinfo.rref, diskinfo.backend);
libxl_diskinfo_destroy(&diskinfo);
}
libxl_device_disk_destroy(&disks[i]);
}
free(disks);
}
return 0;
}
int main_blockdetach(int argc, char **argv)
{
int opt;
libxl_device_disk disk;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("block-detach");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
if (argc-optind != 2) {
help("block-detach");
return 0;
}
if (domain_qualifier_to_domid(argv[optind], &domid, 0) < 0) {
fprintf(stderr, "%s is an invalid domain identifier\n", argv[optind]);
return 1;
}
if (libxl_devid_to_device_disk(&ctx, domid, argv[optind+1], &disk)) {
fprintf(stderr, "Error: Device %s not connected.\n", argv[optind+1]);
return 1;
}
if (libxl_device_disk_del(&ctx, &disk, 1)) {
fprintf(stderr, "libxl_device_disk_del failed.\n");
}
return 0;
}
int main_network2attach(int argc, char **argv)
{
int opt;
char *tok, *endptr;
char *back_dom = NULL;
uint32_t domid, back_domid;
unsigned int val, i;
libxl_device_net2 net2;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("network2-attach");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
if ((argc-optind < 1) || (argc-optind > 10)) {
help("network2-attach");
return 0;
}
if (domain_qualifier_to_domid(argv[optind], &domid, 0) < 0) {
fprintf(stderr, "%s is an invalid domain identifier\n", argv[optind]);
return 1;
}
init_net2_info(&net2, -1);
for (argv += optind+1, argc -= optind+1; argc > 0; --argc, ++argv) {
if (!strncmp("front_mac=", *argv, 10)) {
tok = strtok((*argv) + 10, ":");
for (i = 0; tok && i < 6; tok = strtok(NULL, ":"), ++i) {
val = strtoul(tok, &endptr, 16);
if ((tok == endptr) || (val > 255)) {
fprintf(stderr, "Invalid parameter `front_mac'.\n");
return 1;
}
net2.front_mac[i] = val;
}
} else if (!strncmp("back_mac=", *argv, 9)) {
tok = strtok((*argv) + 10, ":");
for (i = 0; tok && i < 6; tok = strtok(NULL, ":"), ++i) {
val = strtoul(tok, &endptr, 16);
if ((tok == endptr) || (val > 255)) {
fprintf(stderr, "Invalid parameter back_mac=%s.\n", *argv + 9);
return 1;
}
net2.back_mac[i] = val;
}
} else if (!strncmp("backend=", *argv, 8)) {
back_dom = *argv;
} else if (!strncmp("trusted=", *argv, 8)) {
net2.trusted = (*((*argv) + 8) == '1');
} else if (!strncmp("back_trusted=", *argv, 13)) {
net2.back_trusted = (*((*argv) + 13) == '1');
} else if (!strncmp("bridge=", *argv, 7)) {
net2.bridge = *argv + 13;
} else if (!strncmp("filter_mac=", *argv, 11)) {
net2.filter_mac = (*((*argv) + 11) == '1');
} else if (!strncmp("front_filter_mac=", *argv, 17)) {
net2.front_filter_mac = (*((*argv) + 17) == '1');
} else if (!strncmp("pdev=", *argv, 5)) {
val = strtoul(*argv + 5, &endptr, 10);
if (endptr == (*argv + 5)) {
fprintf(stderr, "Invalid parameter pdev=%s.\n", *argv + 5);
return 1;
}
net2.pdev = val;
} else if (!strncmp("max_bypasses=", *argv, 13)) {
val = strtoul(*argv + 13, &endptr, 10);
if (endptr == (*argv + 13)) {
fprintf(stderr, "Invalid parameter max_bypasses=%s.\n", *argv + 13);
return 1;
}
net2.max_bypasses = val;
} else {
fprintf(stderr, "unrecognized argument `%s'\n", *argv);
return 1;
}
}
if (back_dom) {
if (domain_qualifier_to_domid(back_dom, &back_domid, 0) < 0) {
fprintf(stderr, "%s is an invalid domain identifier\n", back_dom);
return 1;
}
}
net2.domid = domid;
net2.backend_domid = back_domid;
if (libxl_device_net2_add(&ctx, domid, &net2)) {
fprintf(stderr, "libxl_device_net2_add failed.\n");
}
return 0;
}
int main_network2list(int argc, char **argv)
{
int opt;
unsigned int nb;
libxl_net2info *net2s;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("network2-list");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
if (argc - optind < 1) {
help("network2-list");
return 0;
}
printf("%-3s %-2s %-5s %-17s %-17s %-7s %-6s %-30s\n",
"Idx", "BE", "state", "Mac Addr.", "Remote Mac Addr.",
"trusted", "filter", "backend");
for (argv += optind, argc -=optind; argc > 0; --argc, ++argv) {
if (domain_qualifier_to_domid(*argv, &domid, 0) < 0) {
fprintf(stderr, "%s is an invalid domain identifier\n", *argv);
continue;
}
if ((net2s = libxl_device_net2_list(&ctx, domid, &nb))) {
for (; nb > 0; --nb, ++net2s) {
printf("%3d %2d %5d ", net2s->devid, net2s->backend_id, net2s->state);
printf("%02x:%02x:%02x:%02x:%02x:%02x ",
net2s->mac[0], net2s->mac[1], net2s->mac[2],
net2s->mac[3], net2s->mac[4], net2s->mac[5]);
printf("%02x:%02x:%02x:%02x:%02x:%02x ",
net2s->back_mac[0], net2s->back_mac[1], net2s->back_mac[2],
net2s->back_mac[3], net2s->back_mac[4], net2s->back_mac[5]);
printf("%-7d %-6d %-30s\n", net2s->trusted, net2s->filter_mac, net2s->backend);
}
}
}
return 0;
}
int main_network2detach(int argc, char **argv)
{
int opt;
libxl_device_net2 net2;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("network2-detach");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
if (argc-optind != 2) {
help("network2-detach");
return 0;
}
if (domain_qualifier_to_domid(argv[optind], &domid, 0) < 0) {
fprintf(stderr, "%s is an invalid domain identifier\n", argv[optind]);
return 1;
}
if (libxl_devid_to_device_net2(&ctx, domid, argv[optind+1], &net2)) {
fprintf(stderr, "Error: Device %s not connected.\n", argv[optind+1]);
return 1;
}
if (libxl_device_net2_del(&ctx, &net2, 1)) {
fprintf(stderr, "libxl_device_net2_del failed.\n");
return 1;
}
return 0;
}
static char *uptime_to_string(unsigned long time, int short_mode)
{
int sec, min, hour, day;
char *time_string;
int ret;
day = (int)(time / 86400);
time -= (day * 86400);
hour = (int)(time / 3600);
time -= (hour * 3600);
min = (int)(time / 60);
time -= (min * 60);
sec = time;
if (short_mode)
if (day > 1)
ret = asprintf(&time_string, "%d days, %2d:%02d", day, hour, min);
else if (day == 1)
ret = asprintf(&time_string, "%d day, %2d:%02d", day, hour, min);
else
ret = asprintf(&time_string, "%2d:%02d", hour, min);
else
if (day > 1)
ret = asprintf(&time_string, "%d days, %2d:%02d:%02d", day, hour, min, sec);
else if (day == 1)
ret = asprintf(&time_string, "%d day, %2d:%02d:%02d", day, hour, min, sec);
else
ret = asprintf(&time_string, "%2d:%02d:%02d", hour, min, sec);
if (ret < 0)
return NULL;
return time_string;
}
static char *current_time_to_string(time_t now)
{
char now_str[100];
struct tm *tmp;
tmp = localtime(&now);
if (tmp == NULL) {
fprintf(stderr, "Get localtime error");
exit(-1);
}
if (strftime(now_str, sizeof(now_str), "%H:%M:%S", tmp) == 0) {
fprintf(stderr, "strftime returned 0");
exit(-1);
}
return strdup(now_str);
}
static void print_dom0_uptime(int short_mode, time_t now)
{
int fd;
char buf[512];
uint32_t uptime = 0;
char *uptime_str = NULL;
char *now_str = NULL;
char *domname;
fd = open("/proc/uptime", O_RDONLY);
if (fd == -1)
goto err;
if (read(fd, buf, sizeof(buf)) == -1) {
close(fd);
goto err;
}
close(fd);
strtok(buf, " ");
uptime = strtoul(buf, NULL, 10);
domname = libxl_domid_to_name(&ctx, 0);
if (short_mode)
{
now_str = current_time_to_string(now);
uptime_str = uptime_to_string(uptime, 1);
printf(" %s up %s, %s (%d)\n", now_str, uptime_str,
domname, 0);
}
else
{
now_str = NULL;
uptime_str = uptime_to_string(uptime, 0);
printf("%-33s %4d %s\n", domname,
0, uptime_str);
}
free(now_str);
free(uptime_str);
free(domname);
return;
err:
fprintf(stderr, "Can not get Dom0 uptime.\n");
exit(-1);
}
static void print_domU_uptime(uint32_t domuid, int short_mode, time_t now)
{
uint32_t s_time = 0;
uint32_t uptime = 0;
char *uptime_str = NULL;
char *now_str = NULL;
char *domname;
s_time = libxl_vm_get_start_time(&ctx, domuid);
if (s_time == -1)
return;
uptime = now - s_time;
domname = libxl_domid_to_name(&ctx, domuid);
if (short_mode)
{
now_str = current_time_to_string(now);
uptime_str = uptime_to_string(uptime, 1);
printf(" %s up %s, %s (%d)\n", now_str, uptime_str,
domname, domuid);
}
else
{
now_str = NULL;
uptime_str = uptime_to_string(uptime, 0);
printf("%-33s %4d %s\n", domname,
domuid, uptime_str);
}
free(domname);
free(now_str);
free(uptime_str);
return;
}
static void print_uptime(int short_mode, uint32_t doms[], int nb_doms)
{
libxl_vminfo *info;
time_t now;
int nb_vm, i;
now = time(NULL);
if (!short_mode)
printf("%-33s %4s %s\n", "Name", "ID", "Uptime");
if (nb_doms == 0) {
print_dom0_uptime(short_mode, now);
info = libxl_list_vm(&ctx, &nb_vm);
for (i = 0; i < nb_vm; i++)
print_domU_uptime(info[i].domid, short_mode, now);
} else {
for (i = 0; i < nb_doms; i++) {
if (doms[i] == 0)
print_dom0_uptime(short_mode, now);
else
print_domU_uptime(doms[i], short_mode, now);
}
}
}
int main_uptime(int argc, char **argv)
{
char *dom = NULL;
int short_mode = 0;
uint32_t domains[100];
int nb_doms = 0;
int opt;
while ((opt = getopt(argc, argv, "hs")) != -1) {
switch (opt) {
case 's':
short_mode = 1;
break;
case 'h':
help("uptime");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
for (;(dom = argv[optind]) != NULL; nb_doms++,optind++) {
find_domain(dom);
domains[nb_doms] = domid;
}
print_uptime(short_mode, domains, nb_doms);
return 0;
}
int main_tmem_list(int argc, char **argv)
{
char *dom = NULL;
char *buf = NULL;
int use_long = 0;
int all = 0;
int opt;
while ((opt = getopt(argc, argv, "alh")) != -1) {
switch (opt) {
case 'l':
use_long = 1;
break;
case 'a':
all = 1;
break;
case 'h':
help("tmem-list");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
dom = argv[optind];
if (!dom && all == 0) {
fprintf(stderr, "You must specify -a or a domain id.\n\n");
help("tmem-list");
return 1;
}
if (all)
domid = -1;
else
find_domain(dom);
buf = libxl_tmem_list(&ctx, domid, use_long);
if (buf == NULL)
return -1;
printf("%s\n", buf);
free(buf);
return 0;
}
int main_tmem_freeze(int argc, char **argv)
{
char *dom = NULL;
int all = 0;
int opt;
while ((opt = getopt(argc, argv, "ah")) != -1) {
switch (opt) {
case 'a':
all = 1;
break;
case 'h':
help("tmem-freeze");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
dom = argv[optind];
if (!dom && all == 0) {
fprintf(stderr, "You must specify -a or a domain id.\n\n");
help("tmem-freeze");
return 1;
}
if (all)
domid = -1;
else
find_domain(dom);
libxl_tmem_freeze(&ctx, domid);
return 0;
}
int main_tmem_destroy(int argc, char **argv)
{
char *dom = NULL;
int all = 0;
int opt;
while ((opt = getopt(argc, argv, "ah")) != -1) {
switch (opt) {
case 'a':
all = 1;
break;
case 'h':
help("tmem-destroy");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
dom = argv[optind];
if (!dom && all == 0) {
fprintf(stderr, "You must specify -a or a domain id.\n\n");
help("tmem-destroy");
return 1;
}
if (all)
domid = -1;
else
find_domain(dom);
libxl_tmem_destroy(&ctx, domid);
return 0;
}
int main_tmem_thaw(int argc, char **argv)
{
char *dom = NULL;
int all = 0;
int opt;
while ((opt = getopt(argc, argv, "ah")) != -1) {
switch (opt) {
case 'a':
all = 1;
break;
case 'h':
help("tmem-thaw");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
dom = argv[optind];
if (!dom && all == 0) {
fprintf(stderr, "You must specify -a or a domain id.\n\n");
help("tmem-thaw");
return 1;
}
if (all)
domid = -1;
else
find_domain(dom);
libxl_tmem_thaw(&ctx, domid);
return 0;
}
int main_tmem_set(int argc, char **argv)
{
char *dom = NULL;
uint32_t weight = 0, cap = 0, compress = 0;
int opt_w = 0, opt_c = 0, opt_p = 0;
int all = 0;
int opt;
while ((opt = getopt(argc, argv, "aw:c:p:h")) != -1) {
switch (opt) {
case 'a':
all = 1;
break;
case 'w':
weight = strtol(optarg, NULL, 10);
opt_w = 1;
break;
case 'c':
cap = strtol(optarg, NULL, 10);
opt_c = 1;
break;
case 'p':
compress = strtol(optarg, NULL, 10);
opt_p = 1;
break;
case 'h':
help("tmem-set");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
dom = argv[optind];
if (!dom && all == 0) {
fprintf(stderr, "You must specify -a or a domain id.\n\n");
help("tmem-set");
return 1;
}
if (all)
domid = -1;
else
find_domain(dom);
if (!opt_w && !opt_c && !opt_p) {
fprintf(stderr, "No set value specified.\n\n");
help("tmem-set");
return 1;
}
if (opt_w)
libxl_tmem_set(&ctx, domid, "weight", weight);
if (opt_c)
libxl_tmem_set(&ctx, domid, "cap", cap);
if (opt_p)
libxl_tmem_set(&ctx, domid, "compress", compress);
return 0;
}
int main_tmem_shared_auth(int argc, char **argv)
{
char *autharg = NULL;
char *endptr = NULL;
char *dom = NULL;
char *uuid = NULL;
int auth = -1;
int all = 0;
int opt;
while ((opt = getopt(argc, argv, "au:A:h")) != -1) {
switch (opt) {
case 'a':
all = 1;
break;
case 'u':
uuid = optarg;
break;
case 'A':
autharg = optarg;
break;
case 'h':
help("tmem-shared-auth");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
dom = argv[optind];
if (!dom && all == 0) {
fprintf(stderr, "You must specify -a or a domain id.\n\n");
help("tmem-shared-auth");
return 1;
}
if (all)
domid = -1;
else
find_domain(dom);
if (uuid == NULL || autharg == NULL) {
fprintf(stderr, "No uuid or auth specified.\n\n");
help("tmem-shared-auth");
return 1;
}
auth = strtol(autharg, &endptr, 10);
if (*endptr != '\0') {
fprintf(stderr, "Invalid auth, valid auth are <0|1>.\n\n");
return 1;
}
libxl_tmem_shared_auth(&ctx, domid, uuid, auth);
return 0;
}
int main_tmem_freeable(int argc, char **argv)
{
int opt;
int mb;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
help("tmem-freeable");
return 0;
default:
fprintf(stderr, "option `%c' not supported.\n", opt);
break;
}
}
mb = libxl_tmem_freeable(&ctx);
if (mb == -1)
return -1;
printf("%d\n", mb);
return 0;
}
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