示例#1
0
static int
virStorageBackendSheepdogRefreshVol(virConnectPtr conn ATTRIBUTE_UNUSED,
                                    virStoragePoolObjPtr pool,
                                    virStorageVolDefPtr vol)
{
    int ret;
    char *output = NULL;

    virCommandPtr cmd = virCommandNewArgList(COLLIE, "vdi", "list", vol->name, "-r", NULL);
    virStorageBackendSheepdogAddHostArg(cmd, pool);
    virCommandSetOutputBuffer(cmd, &output);
    ret = virCommandRun(cmd, NULL);

    if (ret < 0)
        goto cleanup;

    if ((ret = virStorageBackendSheepdogParseVdiList(vol, output)) < 0)
        goto cleanup;

    vol->type = VIR_STORAGE_VOL_NETWORK;

    VIR_FREE(vol->key);
    if (virAsprintf(&vol->key, "%s/%s",
                    pool->def->source.name, vol->name) == -1)
        goto cleanup;

    VIR_FREE(vol->target.path);
    ignore_value(VIR_STRDUP(vol->target.path, vol->name));
 cleanup:
    virCommandFree(cmd);
    return ret;
}
示例#2
0
static int
parallelsDoCmdRun(char **outbuf, const char *binary, va_list list)
{
    virCommandPtr cmd = virCommandNewVAList(binary, list);
    char *scmd = NULL;
    int ret = -1;

    if (outbuf)
        virCommandSetOutputBuffer(cmd, outbuf);

    scmd = virCommandToString(cmd);
    if (!scmd)
        goto cleanup;

    if (virCommandRun(cmd, NULL))
        goto cleanup;

    ret = 0;

  cleanup:
    VIR_FREE(scmd);
    virCommandFree(cmd);
    if (ret)
        VIR_FREE(*outbuf);
    return ret;
}
int
libxlDomainGetEmulatorType(const virDomainDef *def)
{
    int ret = LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN;
    virCommandPtr cmd = NULL;
    char *output = NULL;

    if (def->os.type == VIR_DOMAIN_OSTYPE_HVM) {
        if (def->emulator) {
            if (!virFileExists(def->emulator))
                goto cleanup;

            cmd = virCommandNew(def->emulator);

            virCommandAddArgList(cmd, "-help", NULL);
            virCommandSetOutputBuffer(cmd, &output);

            if (virCommandRun(cmd, NULL) < 0)
                goto cleanup;

            if (strstr(output, LIBXL_QEMU_DM_STR))
                ret = LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN_TRADITIONAL;
        }
    }

 cleanup:
    VIR_FREE(output);
    virCommandFree(cmd);
    return ret;
}
示例#4
0
int openvzGetVEID(const char *name)
{
    virCommandPtr cmd;
    char *outbuf;
    char *temp;
    int veid;
    bool ok;

    cmd = virCommandNewArgList(VZLIST, name, "-ovpsid", "-H", NULL);
    virCommandSetOutputBuffer(cmd, &outbuf);
    if (virCommandRun(cmd, NULL) < 0) {
        virCommandFree(cmd);
        VIR_FREE(outbuf);
        return -1;
    }

    virCommandFree(cmd);
    ok = virStrToLong_i(outbuf, &temp, 10, &veid) == 0 && *temp == '\n';
    VIR_FREE(outbuf);

    if (ok && veid >= 0)
        return veid;

    virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                   _("Failed to parse vzlist output"));
    return -1;
}
示例#5
0
int
virBhyveProbeGrubCaps(virBhyveGrubCapsFlags *caps)
{
    char *binary, *help;
    virCommandPtr cmd;
    int ret, exit;

    ret = 0;
    *caps = 0;
    cmd = NULL;
    help = NULL;

    binary = virFindFileInPath("grub-bhyve");
    if (binary == NULL)
        goto out;
    if (!virFileIsExecutable(binary))
        goto out;

    cmd = virCommandNew(binary);
    virCommandAddArg(cmd, "--help");
    virCommandSetOutputBuffer(cmd, &help);
    if (virCommandRun(cmd, &exit) < 0) {
        ret = -1;
        goto out;
    }

    if (strstr(help, "--cons-dev") != NULL)
        *caps |= BHYVE_GRUB_CAP_CONSDEV;

 out:
    VIR_FREE(help);
    virCommandFree(cmd);
    VIR_FREE(binary);
    return ret;
}
static char *
virStorageBackendSCSISerial(const char *dev)
{
    char *serial = NULL;
#ifdef WITH_UDEV
    virCommandPtr cmd = virCommandNewArgList(
        "/lib/udev/scsi_id",
        "--replace-whitespace",
        "--whitelisted",
        "--device", dev,
        NULL
        );

    /* Run the program and capture its output */
    virCommandSetOutputBuffer(cmd, &serial);
    if (virCommandRun(cmd, NULL) < 0)
        goto cleanup;
#endif

    if (serial && STRNEQ(serial, "")) {
        char *nl = strchr(serial, '\n');
        if (nl)
            *nl = '\0';
    } else {
        VIR_FREE(serial);
        ignore_value(VIR_STRDUP(serial, dev));
    }

#ifdef WITH_UDEV
cleanup:
    virCommandFree(cmd);
#endif

    return serial;
}
示例#7
0
virSysinfoDefPtr
virSysinfoRead(void) {
    char *path;
    virSysinfoDefPtr ret = NULL;
    char *outbuf = NULL;
    virCommandPtr cmd;

    path = virFindFileInPath(SYSINFO_SMBIOS_DECODER);
    if (path == NULL) {
        virSmbiosReportError(VIR_ERR_INTERNAL_ERROR,
                             _("Failed to find path for %s binary"),
                             SYSINFO_SMBIOS_DECODER);
        return NULL;
    }

    cmd = virCommandNewArgList(path, "-q", "-t", "0,1,4,17", NULL);
    VIR_FREE(path);
    virCommandSetOutputBuffer(cmd, &outbuf);
    if (virCommandRun(cmd, NULL) < 0) {
        virSmbiosReportError(VIR_ERR_INTERNAL_ERROR,
                             _("Failed to execute command %s"),
                             path);
        goto cleanup;
    }

    if (VIR_ALLOC(ret) < 0)
        goto no_memory;

    ret->type = VIR_SYSINFO_SMBIOS;

    if (virSysinfoParseBIOS(outbuf, ret) < 0)
        goto no_memory;

    if (virSysinfoParseSystem(outbuf, ret) < 0)
        goto no_memory;

    ret->nprocessor = 0;
    ret->processor = NULL;
    if (virSysinfoParseProcessor(outbuf, ret) < 0)
        goto no_memory;

    ret->nmemory = 0;
    ret->memory = NULL;
    if (virSysinfoParseMemory(outbuf, ret) < 0)
        goto no_memory;

cleanup:
    VIR_FREE(outbuf);
    virCommandFree(cmd);

    return ret;

no_memory:
    virReportOOMError();

    virSysinfoDefFree(ret);
    ret = NULL;
    goto cleanup;
}
示例#8
0
static int
vmwareUpdateVMStatus(struct vmware_driver *driver, virDomainObjPtr vm)
{
    virCommandPtr cmd;
    char *outbuf = NULL;
    char *vmxAbsolutePath = NULL;
    char *parsedVmxPath = NULL;
    char *str;
    char *saveptr = NULL;
    bool found = false;
    int oldState = virDomainObjGetState(vm, NULL);
    int newState;
    int ret = -1;

    cmd = virCommandNewArgList(VMRUN, "-T", vmw_types[driver->type],
                               "list", NULL);
    virCommandSetOutputBuffer(cmd, &outbuf);
    if (virCommandRun(cmd, NULL) < 0)
        goto cleanup;

    if (virFileResolveAllLinks(((vmwareDomainPtr) vm->privateData)->vmxPath,
                               &vmxAbsolutePath) < 0)
        goto cleanup;

    for (str = outbuf ; (parsedVmxPath = strtok_r(str, "\n", &saveptr)) != NULL;
         str = NULL) {

        if (parsedVmxPath[0] != '/')
            continue;

        if (STREQ(parsedVmxPath, vmxAbsolutePath)) {
            found = true;
            /* If the vmx path is in the output, the domain is running or
             * is paused but we have no way to detect if it is paused or not. */
            if (oldState == VIR_DOMAIN_PAUSED)
                newState = oldState;
            else
                newState = VIR_DOMAIN_RUNNING;
            break;
        }
    }

    if (!found) {
        vm->def->id = -1;
        newState = VIR_DOMAIN_SHUTOFF;
    }

    virDomainObjSetState(vm, newState, 0);

    ret = 0;

cleanup:
    virCommandFree(cmd);
    VIR_FREE(outbuf);
    VIR_FREE(vmxAbsolutePath);
    return ret;
}
示例#9
0
int
vmwareExtractVersion(struct vmware_driver *driver)
{
    int ret = -1;
    virCommandPtr cmd = NULL;
    char * outbuf = NULL;
    char *bin = NULL;
    char *vmwarePath = NULL;

    if ((vmwarePath = mdir_name(driver->vmrun)) == NULL)
        goto cleanup;

    switch (driver->type) {
        case VMWARE_DRIVER_PLAYER:
            if (virAsprintf(&bin, "%s/%s", vmwarePath, "vmplayer") < 0)
                goto cleanup;
            break;

        case VMWARE_DRIVER_WORKSTATION:
            if (virAsprintf(&bin, "%s/%s", vmwarePath, "vmware") < 0)
                goto cleanup;
            break;

        case VMWARE_DRIVER_FUSION:
            if (virAsprintf(&bin, "%s/%s", vmwarePath, "vmware-vmx") < 0)
                goto cleanup;
            break;

        default:
            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                           _("invalid driver type for version detection"));
            goto cleanup;
    }

    cmd = virCommandNewArgList(bin, "-v", NULL);
    virCommandSetOutputBuffer(cmd, &outbuf);
    virCommandSetErrorBuffer(cmd, &outbuf);

    if (virCommandRun(cmd, NULL) < 0)
        goto cleanup;

    if (vmwareParseVersionStr(driver->type, outbuf, &driver->version) < 0)
        goto cleanup;

    ret = 0;

 cleanup:
    virCommandFree(cmd);
    VIR_FREE(outbuf);
    VIR_FREE(bin);
    VIR_FREE(vmwarePath);
    return ret;
}
示例#10
0
static int
virStorageBackendZFSFindVols(virStoragePoolObjPtr pool,
                             virStorageVolDefPtr vol)
{
    virStoragePoolDefPtr def = virStoragePoolObjGetDef(pool);
    virCommandPtr cmd = NULL;
    char *volumes_list = NULL;
    char **lines = NULL;
    size_t i;

    /**
     * $ zfs list -Hp -t volume -o name,volsize -r test
     * test/vol1       5368709120
     * test/vol3       1073741824
     * test/vol4       1572864000
     * $
     *
     * Arguments description:
     *  -t volume -- we want to see only volumes
     *  -o name,volsize -- limit output to name and volume size
     *  -r -- we want to see all the childer of our pool
     */
    cmd = virCommandNewArgList(ZFS,
                               "list", "-Hp",
                               "-t", "volume", "-r",
                               "-o", "name,volsize,refreservation",
                               def->source.name,
                               NULL);
    virCommandSetOutputBuffer(cmd, &volumes_list);
    if (virCommandRun(cmd, NULL) < 0)
        goto cleanup;

    if (!(lines = virStringSplit(volumes_list, "\n", 0)))
        goto cleanup;

    for (i = 0; lines[i]; i++) {
        if (STREQ(lines[i], ""))
            continue;

        if (virStorageBackendZFSParseVol(pool, vol, lines[i]) < 0)
            continue;
    }

 cleanup:
    virCommandFree(cmd);
    virStringListFree(lines);
    VIR_FREE(volumes_list);

    return 0;
}
示例#11
0
int
qemuCapsProbeCPUModels(const char *qemu,
                       virBitmapPtr qemuCaps,
                       const char *arch,
                       unsigned int *count,
                       const char ***cpus)
{
    char *output = NULL;
    int ret = -1;
    qemuCapsParseCPUModels parse;
    virCommandPtr cmd;

    if (count)
        *count = 0;
    if (cpus)
        *cpus = NULL;

    if (STREQ(arch, "i686") || STREQ(arch, "x86_64"))
        parse = qemuCapsParseX86Models;
    else if (STREQ(arch, "ppc64"))
        parse = qemuCapsParsePPCModels;
    else {
        VIR_DEBUG("don't know how to parse %s CPU models", arch);
        return 0;
    }

    cmd = virCommandNewArgList(qemu, "-cpu", "?", NULL);
    if (qemuCapsGet(qemuCaps, QEMU_CAPS_NODEFCONFIG))
        virCommandAddArg(cmd, "-nodefconfig");
    virCommandAddEnvPassCommon(cmd);
    virCommandSetOutputBuffer(cmd, &output);
    virCommandClearCaps(cmd);

    if (virCommandRun(cmd, NULL) < 0)
        goto cleanup;

    if (parse(output, count, cpus) < 0)
        goto cleanup;

    ret = 0;

cleanup:
    VIR_FREE(output);
    virCommandFree(cmd);

    return ret;
}
示例#12
0
static int
virStorageBackendSheepdogRefreshAllVol(virConnectPtr conn ATTRIBUTE_UNUSED,
                                       virStoragePoolObjPtr pool)
{
    int ret = -1;
    char *output = NULL;
    char **lines = NULL;
    char **cells = NULL;
    size_t i;

    virCommandPtr cmd = virCommandNewArgList(COLLIE, "vdi", "list", "-r", NULL);
    virStorageBackendSheepdogAddHostArg(cmd, pool);
    virCommandSetOutputBuffer(cmd, &output);
    if (virCommandRun(cmd, NULL) < 0)
        goto cleanup;

    lines = virStringSplit(output, "\n", 0);
    if (lines == NULL)
        goto cleanup;

    for (i = 0; lines[i]; i++) {
        const char *line = lines[i];
        if (line == NULL)
            break;

        cells = virStringSplit(line, " ", 0);

        if (cells != NULL && virStringListLength(cells) > 2) {
            if (virStorageBackendSheepdogAddVolume(conn, pool, cells[1]) < 0)
                goto cleanup;
        }

        virStringFreeList(cells);
        cells = NULL;
    }

    ret = 0;

 cleanup:
    virCommandFree(cmd);
    virStringFreeList(lines);
    virStringFreeList(cells);
    VIR_FREE(output);
    return ret;
}
示例#13
0
static int
virStorageBackendSheepdogRefreshPool(virConnectPtr conn ATTRIBUTE_UNUSED,
                                     virStoragePoolObjPtr pool)
{
    int ret;
    char *output = NULL;
    virCommandPtr cmd;

    cmd = virCommandNewArgList(COLLIE, "node", "info", "-r", NULL);
    virStorageBackendSheepdogAddHostArg(cmd, pool);
    virCommandSetOutputBuffer(cmd, &output);
    ret = virCommandRun(cmd, NULL);
    if (ret == 0)
        ret = virStorageBackendSheepdogParseNodeInfo(pool->def, output);

    virCommandFree(cmd);
    VIR_FREE(output);
    return ret;
}
示例#14
0
文件: vz_utils.c 项目: JGulic/libvirt
static int
vzDoCmdRun(char **outbuf, const char *binary, va_list list)
{
    virCommandPtr cmd = virCommandNewVAList(binary, list);
    int ret = -1;

    if (outbuf)
        virCommandSetOutputBuffer(cmd, outbuf);

    if (virCommandRun(cmd, NULL) < 0)
        goto cleanup;

    ret = 0;

 cleanup:
    virCommandFree(cmd);
    if (ret && outbuf)
        VIR_FREE(*outbuf);
    return ret;
}
示例#15
0
static int
openvzGetVEStatus(virDomainObjPtr vm, int *status, int *reason)
{
    virCommandPtr cmd;
    char *outbuf;
    char *line;
    int state;
    int ret = -1;

    cmd = virCommandNewArgList(VZLIST, vm->def->name, "-ostatus", "-H", NULL);
    virCommandSetOutputBuffer(cmd, &outbuf);
    if (virCommandRun(cmd, NULL) < 0)
        goto cleanup;

    if ((line = strchr(outbuf, '\n')) == NULL) {
        openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
                    _("Failed to parse vzlist output"));
        goto cleanup;
    }
    *line++ = '\0';

    state = virDomainObjGetState(vm, reason);

    if (STREQ(outbuf, "running")) {
        /* There is no way to detect whether a domain is paused or not
         * with vzlist */
        if (state == VIR_DOMAIN_PAUSED)
            *status = state;
        else
            *status = VIR_DOMAIN_RUNNING;
    } else {
        *status = VIR_DOMAIN_SHUTOFF;
    }

    ret = 0;

cleanup:
    virCommandFree(cmd);
    VIR_FREE(outbuf);
    return ret;
}
示例#16
0
char *
virNumaGetAutoPlacementAdvice(unsigned short vcpus,
                              unsigned long long balloon)
{
    virCommandPtr cmd = NULL;
    char *output = NULL;

    cmd = virCommandNewArgList(NUMAD, "-w", NULL);
    virCommandAddArgFormat(cmd, "%d:%llu", vcpus,
                           VIR_DIV_UP(balloon, 1024));

    virCommandSetOutputBuffer(cmd, &output);

    if (virCommandRun(cmd, NULL) < 0)
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("Failed to query numad for the "
                         "advisory nodeset"));

    virCommandFree(cmd);
    return output;
}
示例#17
0
int
qemuCapsProbeMachineTypes(const char *binary,
                          virCapsGuestMachinePtr **machines,
                          int *nmachines)
{
    char *output;
    int ret = -1;
    virCommandPtr cmd;
    int status;

    /* Make sure the binary we are about to try exec'ing exists.
     * Technically we could catch the exec() failure, but that's
     * in a sub-process so it's hard to feed back a useful error.
     */
    if (!virFileIsExecutable(binary)) {
        virReportSystemError(errno, _("Cannot find QEMU binary %s"), binary);
        return -1;
    }

    cmd = virCommandNewArgList(binary, "-M", "?", NULL);
    virCommandAddEnvPassCommon(cmd);
    virCommandSetOutputBuffer(cmd, &output);
    virCommandClearCaps(cmd);

    /* Ignore failure from older qemu that did not understand '-M ?'.  */
    if (virCommandRun(cmd, &status) < 0)
        goto cleanup;

    if (qemuCapsParseMachineTypesStr(output, machines, nmachines) < 0)
        goto cleanup;

    ret = 0;

cleanup:
    VIR_FREE(output);
    virCommandFree(cmd);

    return ret;
}
示例#18
0
int
vmwareExtractVersion(struct vmware_driver *driver)
{
    unsigned long version = 0;
    char *tmp;
    int ret = -1;
    virCommandPtr cmd;
    char * outbuf = NULL;
    const char * bin = (driver->type == TYPE_PLAYER) ? "vmplayer" : "vmware";
    const char * pattern = (driver->type == TYPE_PLAYER) ?
                "VMware Player " : "VMware Workstation ";

    cmd = virCommandNewArgList(bin, "-v", NULL);
    virCommandSetOutputBuffer(cmd, &outbuf);

    if (virCommandRun(cmd, NULL) < 0)
        goto cleanup;

    if ((tmp = STRSKIP(outbuf, pattern)) == NULL) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("failed to parse %s version"), bin);
        goto cleanup;
    }

    if (virParseVersionString(tmp, &version, false) < 0) {
        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                       _("version parsing error"));
        goto cleanup;
    }

    driver->version = version;
    ret = 0;

cleanup:
    virCommandFree(cmd);
    VIR_FREE(outbuf);
    return ret;
}
示例#19
0
static int
openvzExtractVersionInfo(const char *cmdstr, int *retversion)
{
    int ret = -1;
    unsigned long version;
    char *help = NULL;
    char *tmp;
    virCommandPtr cmd = virCommandNewArgList(cmdstr, "--help", NULL);

    if (retversion)
        *retversion = 0;

    virCommandAddEnvString(cmd, "LC_ALL=C");
    virCommandSetOutputBuffer(cmd, &help);

    if (virCommandRun(cmd, NULL) < 0)
        goto cleanup;

    tmp = help;

    /* expected format: vzctl version <major>.<minor>.<micro> */
    if ((tmp = STRSKIP(tmp, "vzctl version ")) == NULL)
        goto cleanup;

    if (virParseVersionString(tmp, &version, true) < 0)
        goto cleanup;

    if (retversion)
        *retversion = version;

    ret = 0;

cleanup:
    virCommandFree(cmd);
    VIR_FREE(help);

    return ret;
}
示例#20
0
文件: hooks.c 项目: foomango/libvirt
/**
 * virHookCall:
 * @driver: the driver number (from virHookDriver enum)
 * @id: an id for the object '-' if non available for example on daemon hooks
 * @op: the operation on the id e.g. VIR_HOOK_QEMU_OP_START
 * @sub_op: a sub_operation, currently unused
 * @extra: optional string information
 * @input: extra input given to the script on stdin
 * @output: optional address of variable to store malloced result buffer
 *
 * Implement a hook call, where the external script for the driver is
 * called with the given information. This is a synchronous call, we wait for
 * execution completion. If @output is non-NULL, *output is guaranteed to be
 * allocated after successful virHookCall, and is best-effort allocated after
 * failed virHookCall; the caller is responsible for freeing *output.
 *
 * Returns: 0 if the execution succeeded, 1 if the script was not found or
 *          invalid parameters, and -1 if script returned an error
 */
int
virHookCall(int driver,
            const char *id,
            int op,
            int sub_op,
            const char *extra,
            const char *input,
            char **output)
{
    int ret;
    int exitstatus;
    char *path;
    virCommandPtr cmd;
    const char *drvstr;
    const char *opstr;
    const char *subopstr;

    if (output)
        *output = NULL;

    if ((driver < VIR_HOOK_DRIVER_DAEMON) ||
        (driver >= VIR_HOOK_DRIVER_LAST))
        return 1;

    /*
     * We cache the availability of the script to minimize impact at
     * runtime if no script is defined, this is being reset on SIGHUP
     */
    if ((virHooksFound == -1) ||
        ((driver == VIR_HOOK_DRIVER_DAEMON) &&
         (op == VIR_HOOK_DAEMON_OP_RELOAD ||
         op == VIR_HOOK_DAEMON_OP_SHUTDOWN)))
        virHookInitialize();

    if ((virHooksFound & (1 << driver)) == 0)
        return 1;

    drvstr = virHookDriverTypeToString(driver);

    opstr = NULL;
    switch (driver) {
        case VIR_HOOK_DRIVER_DAEMON:
            opstr = virHookDaemonOpTypeToString(op);
            break;
        case VIR_HOOK_DRIVER_QEMU:
            opstr = virHookQemuOpTypeToString(op);
            break;
        case VIR_HOOK_DRIVER_LXC:
            opstr = virHookLxcOpTypeToString(op);
            break;
    }
    if (opstr == NULL) {
        virHookReportError(VIR_ERR_INTERNAL_ERROR,
                           _("Hook for %s, failed to find operation #%d"),
                           drvstr, op);
        return 1;
    }
    subopstr = virHookSubopTypeToString(sub_op);
    if (subopstr == NULL)
        subopstr = "-";
    if (extra == NULL)
        extra = "-";

    ret = virBuildPath(&path, LIBVIRT_HOOK_DIR, drvstr);
    if ((ret < 0) || (path == NULL)) {
        virHookReportError(VIR_ERR_INTERNAL_ERROR,
                           _("Failed to build path for %s hook"),
                           drvstr);
        return -1;
    }

    cmd = virCommandNewArgList(path, id, opstr, subopstr, extra, NULL);

    virCommandAddEnvPassCommon(cmd);

    if (input)
        virCommandSetInputBuffer(cmd, input);
    if (output)
        virCommandSetOutputBuffer(cmd, output);

    ret = virCommandRun(cmd, &exitstatus);
    if (ret == 0 && exitstatus != 0) {
        virHookReportError(VIR_ERR_HOOK_SCRIPT_FAILED,
                           _("Hook script %s %s failed with error code %d"),
                           path, drvstr, exitstatus);
        ret = -1;
    }

    virCommandFree(cmd);

    VIR_FREE(path);

    return ret;
}
示例#21
0
static int
testPrepImages(void)
{
    int ret = EXIT_FAILURE;
    virCommandPtr cmd = NULL;
    char *buf = NULL;
    bool compat = false;

    qemuimg = virFindFileInPath("kvm-img");
    if (!qemuimg)
        qemuimg = virFindFileInPath("qemu-img");
    if (!qemuimg)
        goto skip;

    /* Clean up from any earlier failed tests */
    virFileDeleteTree(datadir);

    /* See if qemu-img supports '-o compat=xxx'.  If so, we force the
     * use of both v2 and v3 files; if not, it is v2 only but the test
     * still works. */
    cmd = virCommandNewArgList(qemuimg, "create", "-f", "qcow2",
                               "-o?", "/dev/null", NULL);
    virCommandSetOutputBuffer(cmd, &buf);
    if (virCommandRun(cmd, NULL) < 0)
        goto skip;
    if (strstr(buf, "compat "))
        compat = true;
    VIR_FREE(buf);

    if (virAsprintf(&absraw, "%s/raw", datadir) < 0 ||
        virAsprintf(&absqcow2, "%s/qcow2", datadir) < 0 ||
        virAsprintf(&abswrap, "%s/wrap", datadir) < 0 ||
        virAsprintf(&absqed, "%s/qed", datadir) < 0 ||
        virAsprintf(&absdir, "%s/dir", datadir) < 0 ||
        virAsprintf(&abslink2, "%s/sub/link2", datadir) < 0)
        goto cleanup;

    if (virFileMakePath(datadir "/sub") < 0) {
        fprintf(stderr, "unable to create directory %s\n", datadir "/sub");
        goto cleanup;
    }
    if (virFileMakePath(datadir "/dir") < 0) {
        fprintf(stderr, "unable to create directory %s\n", datadir "/dir");
        goto cleanup;
    }
    if (!(canondir = canonicalize_file_name(absdir))) {
        virReportOOMError();
        goto cleanup;
    }

    if (chdir(datadir) < 0) {
        fprintf(stderr, "unable to test relative backing chains\n");
        goto cleanup;
    }

    if (virAsprintf(&buf, "%1024d", 0) < 0 ||
        virFileWriteStr("raw", buf, 0600) < 0) {
        fprintf(stderr, "unable to create raw file\n");
        goto cleanup;
    }
    if (!(canonraw = canonicalize_file_name(absraw))) {
        virReportOOMError();
        goto cleanup;
    }

    /* Create a qcow2 wrapping relative raw; later on, we modify its
     * metadata to test other configurations */
    virCommandFree(cmd);
    cmd = virCommandNewArgList(qemuimg, "create", "-f", "qcow2", NULL);
    virCommandAddArgFormat(cmd, "-obacking_file=raw,backing_fmt=raw%s",
                           compat ? ",compat=0.10" : "");
    virCommandAddArg(cmd, "qcow2");
    if (virCommandRun(cmd, NULL) < 0)
        goto skip;
    /* Make sure our later uses of 'qemu-img rebase' will work */
    virCommandFree(cmd);
    cmd = virCommandNewArgList(qemuimg, "rebase", "-u", "-f", "qcow2",
                               "-F", "raw", "-b", "raw", "qcow2", NULL);
    if (virCommandRun(cmd, NULL) < 0)
        goto skip;
    if (!(canonqcow2 = canonicalize_file_name(absqcow2))) {
        virReportOOMError();
        goto cleanup;
    }

    /* Create a second qcow2 wrapping the first, to be sure that we
     * can correctly avoid insecure probing.  */
    virCommandFree(cmd);
    cmd = virCommandNewArgList(qemuimg, "create", "-f", "qcow2", NULL);
    virCommandAddArgFormat(cmd, "-obacking_file=%s,backing_fmt=qcow2%s",
                           absqcow2, compat ? ",compat=1.1" : "");
    virCommandAddArg(cmd, "wrap");
    if (virCommandRun(cmd, NULL) < 0)
        goto skip;
    if (!(canonwrap = canonicalize_file_name(abswrap))) {
        virReportOOMError();
        goto cleanup;
    }

    /* Create a qed file. */
    virCommandFree(cmd);
    cmd = virCommandNewArgList(qemuimg, "create", "-f", "qed", NULL);
    virCommandAddArgFormat(cmd, "-obacking_file=%s,backing_fmt=raw",
                           absraw);
    virCommandAddArg(cmd, "qed");
    if (virCommandRun(cmd, NULL) < 0)
        goto skip;
    if (!(canonqed = canonicalize_file_name(absqed))) {
        virReportOOMError();
        goto cleanup;
    }

#ifdef HAVE_SYMLINK
    /* Create some symlinks in a sub-directory. */
    if (symlink("../qcow2", datadir "/sub/link1") < 0 ||
        symlink("../wrap", datadir "/sub/link2") < 0) {
        fprintf(stderr, "unable to create symlink");
        goto cleanup;
    }
#endif

    ret = 0;
 cleanup:
    VIR_FREE(buf);
    virCommandFree(cmd);
    if (ret)
        testCleanupImages();
    return ret;

 skip:
    fputs("qemu-img is too old; skipping this test\n", stderr);
    ret = EXIT_AM_SKIP;
    goto cleanup;
}
示例#22
0
文件: virhook.c 项目: FrankYu/libvirt
/**
 * virHookCall:
 * @driver: the driver number (from virHookDriver enum)
 * @id: an id for the object '-' if non available for example on daemon hooks
 * @op: the operation on the id e.g. VIR_HOOK_QEMU_OP_START
 * @sub_op: a sub_operation, currently unused
 * @extra: optional string information
 * @input: extra input given to the script on stdin
 * @output: optional address of variable to store malloced result buffer
 *
 * Implement a hook call, where the external script for the driver is
 * called with the given information. This is a synchronous call, we wait for
 * execution completion. If @output is non-NULL, *output is guaranteed to be
 * allocated after successful virHookCall, and is best-effort allocated after
 * failed virHookCall; the caller is responsible for freeing *output.
 *
 * Returns: 0 if the execution succeeded, 1 if the script was not found or
 *          invalid parameters, and -1 if script returned an error
 */
int
virHookCall(int driver,
            const char *id,
            int op,
            int sub_op,
            const char *extra,
            const char *input,
            char **output)
{
    int ret;
    char *path;
    virCommandPtr cmd;
    const char *drvstr;
    const char *opstr;
    const char *subopstr;

    if (output)
        *output = NULL;

    if ((driver < VIR_HOOK_DRIVER_DAEMON) ||
        (driver >= VIR_HOOK_DRIVER_LAST))
        return 1;

    /*
     * We cache the availability of the script to minimize impact at
     * runtime if no script is defined, this is being reset on SIGHUP
     */
    if ((virHooksFound == -1) ||
        ((driver == VIR_HOOK_DRIVER_DAEMON) &&
         (op == VIR_HOOK_DAEMON_OP_RELOAD ||
         op == VIR_HOOK_DAEMON_OP_SHUTDOWN)))
        virHookInitialize();

    if ((virHooksFound & (1 << driver)) == 0)
        return 1;

    drvstr = virHookDriverTypeToString(driver);

    opstr = NULL;
    switch (driver) {
        case VIR_HOOK_DRIVER_DAEMON:
            opstr = virHookDaemonOpTypeToString(op);
            break;
        case VIR_HOOK_DRIVER_QEMU:
            opstr = virHookQemuOpTypeToString(op);
            break;
        case VIR_HOOK_DRIVER_LXC:
            opstr = virHookLxcOpTypeToString(op);
            break;
        case VIR_HOOK_DRIVER_NETWORK:
            opstr = virHookNetworkOpTypeToString(op);
    }
    if (opstr == NULL) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("Hook for %s, failed to find operation #%d"),
                       drvstr, op);
        return 1;
    }
    subopstr = virHookSubopTypeToString(sub_op);
    if (subopstr == NULL)
        subopstr = "-";
    if (extra == NULL)
        extra = "-";

    if (virBuildPath(&path, LIBVIRT_HOOK_DIR, drvstr) < 0) {
        virReportError(VIR_ERR_INTERNAL_ERROR,
                       _("Failed to build path for %s hook"),
                       drvstr);
        return -1;
    }

    VIR_DEBUG("Calling hook opstr=%s subopstr=%s extra=%s",
              opstr, subopstr, extra);

    cmd = virCommandNewArgList(path, id, opstr, subopstr, extra, NULL);

    virCommandAddEnvPassCommon(cmd);

    if (input)
        virCommandSetInputBuffer(cmd, input);
    if (output)
        virCommandSetOutputBuffer(cmd, output);

    ret = virCommandRun(cmd, NULL);
    if (ret < 0) {
        /* Convert INTERNAL_ERROR into known error.  */
        virErrorPtr err = virGetLastError();
        virReportError(VIR_ERR_HOOK_SCRIPT_FAILED, "%s",
                       err ? err->message : _("unknown error"));
    }

    virCommandFree(cmd);

    VIR_FREE(path);

    return ret;
}
示例#23
0
int
vmwareLoadDomains(struct vmware_driver *driver)
{
    virDomainDefPtr vmdef = NULL;
    virDomainObjPtr vm = NULL;
    char *vmxPath = NULL;
    char *vmx = NULL;
    vmwareDomainPtr pDomain;
    char *directoryName = NULL;
    char *fileName = NULL;
    int ret = -1;
    virVMXContext ctx;
    char *outbuf = NULL;
    char *str;
    char *saveptr = NULL;
    virCommandPtr cmd;

    ctx.parseFileName = vmwareCopyVMXFileName;

    cmd = virCommandNewArgList(VMRUN, "-T",
                               driver->type == TYPE_PLAYER ? "player" : "ws",
                               "list", NULL);
    virCommandSetOutputBuffer(cmd, &outbuf);
    if (virCommandRun(cmd, NULL) < 0)
        goto cleanup;

    for (str = outbuf; (vmxPath = strtok_r(str, "\n", &saveptr)) != NULL;
        str = NULL) {

        if (vmxPath[0] != '/')
            continue;

        if (virFileReadAll(vmxPath, 10000, &vmx) < 0)
            goto cleanup;

        if ((vmdef =
             virVMXParseConfig(&ctx, driver->xmlopt, vmx)) == NULL) {
            goto cleanup;
        }

        if (!(vm = virDomainObjListAdd(driver->domains, vmdef,
                                       driver->xmlopt,
                                       0, NULL)))
            goto cleanup;

        pDomain = vm->privateData;

        if (VIR_STRDUP(pDomain->vmxPath, vmxPath) < 0)
            goto cleanup;

        vmwareDomainConfigDisplay(pDomain, vmdef);

        if ((vm->def->id = vmwareExtractPid(vmxPath)) < 0)
            goto cleanup;
        /* vmrun list only reports running vms */
        virDomainObjSetState(vm, VIR_DOMAIN_RUNNING,
                             VIR_DOMAIN_RUNNING_UNKNOWN);
        vm->persistent = 1;

        virObjectUnlock(vm);

        vmdef = NULL;
        vm = NULL;
    }

    ret = 0;

cleanup:
    virCommandFree(cmd);
    VIR_FREE(outbuf);
    virDomainDefFree(vmdef);
    VIR_FREE(directoryName);
    VIR_FREE(fileName);
    VIR_FREE(vmx);
    virObjectUnref(vm);
    return ret;
}
示例#24
0
static int
dnsmasqCapsRefreshInternal(dnsmasqCapsPtr caps, bool force)
{
    int ret = -1;
    struct stat sb;
    virCommandPtr cmd = NULL;
    char *help = NULL, *version = NULL, *complete = NULL;

    if (!caps || caps->noRefresh)
        return 0;

    if (stat(caps->binaryPath, &sb) < 0) {
        virReportSystemError(errno, _("Cannot check dnsmasq binary %s"),
                             caps->binaryPath);
        return -1;
    }
    if (!force && caps->mtime == sb.st_mtime)
        return 0;
    caps->mtime = sb.st_mtime;

    /* Make sure the binary we are about to try exec'ing exists.
     * Technically we could catch the exec() failure, but that's
     * in a sub-process so it's hard to feed back a useful error.
     */
    if (!virFileIsExecutable(caps->binaryPath)) {
        virReportSystemError(errno, _("dnsmasq binary %s is not executable"),
                             caps->binaryPath);
        goto cleanup;
    }

    cmd = virCommandNewArgList(caps->binaryPath, "--version", NULL);
    virCommandSetOutputBuffer(cmd, &version);
    virCommandAddEnvPassCommon(cmd);
    virCommandClearCaps(cmd);
    if (virCommandRun(cmd, NULL) < 0) {
        virReportSystemError(errno, _("failed to run '%s --version': %s"),
                             caps->binaryPath, version);
        goto cleanup;
    }
    virCommandFree(cmd);

    cmd = virCommandNewArgList(caps->binaryPath, "--help", NULL);
    virCommandSetOutputBuffer(cmd, &help);
    virCommandAddEnvPassCommon(cmd);
    virCommandClearCaps(cmd);
    if (virCommandRun(cmd, NULL) < 0) {
        virReportSystemError(errno, _("failed to run '%s --help': %s"),
                             caps->binaryPath, help);
        goto cleanup;
    }

    if (virAsprintf(&complete, "%s\n%s", version, help) < 0)
        goto cleanup;

    ret = dnsmasqCapsSetFromBuffer(caps, complete);

 cleanup:
    virCommandFree(cmd);
    VIR_FREE(help);
    VIR_FREE(version);
    VIR_FREE(complete);
    return ret;
}
示例#25
0
int openvzLoadDomains(struct openvz_driver *driver)
{
    int veid, ret;
    char *status;
    char uuidstr[VIR_UUID_STRING_BUFLEN];
    virDomainObjPtr dom = NULL;
    virDomainDefPtr def = NULL;
    char *temp = NULL;
    char *outbuf = NULL;
    char *line;
    virCommandPtr cmd = NULL;
    unsigned int vcpus = 0;

    if (openvzAssignUUIDs() < 0)
        return -1;

    cmd = virCommandNewArgList(VZLIST, "-a", "-ovpsid,status", "-H", NULL);
    virCommandSetOutputBuffer(cmd, &outbuf);
    if (virCommandRun(cmd, NULL) < 0)
        goto cleanup;

    line = outbuf;
    while (line[0] != '\0') {
        unsigned int flags = 0;
        if (virStrToLong_i(line, &status, 10, &veid) < 0 ||
            *status++ != ' ' ||
            (line = strchr(status, '\n')) == NULL) {
            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                           _("Failed to parse vzlist output"));
            goto cleanup;
        }
        *line++ = '\0';

        if (!(def = virDomainDefNew()))
            goto cleanup;

        def->virtType = VIR_DOMAIN_VIRT_OPENVZ;

        if (STREQ(status, "stopped"))
            def->id = -1;
        else
            def->id = veid;
        if (virAsprintf(&def->name, "%i", veid) < 0)
            goto cleanup;

        openvzGetVPSUUID(veid, uuidstr, sizeof(uuidstr));
        ret = virUUIDParse(uuidstr, def->uuid);

        if (ret == -1) {
            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                           _("UUID in config file malformed"));
            goto cleanup;
        }

        def->os.type = VIR_DOMAIN_OSTYPE_EXE;
        if (VIR_STRDUP(def->os.init, "/sbin/init") < 0)
            goto cleanup;

        ret = openvzReadVPSConfigParam(veid, "CPUS", &temp);
        if (ret < 0) {
            virReportError(VIR_ERR_INTERNAL_ERROR,
                           _("Could not read config for container %d"),
                           veid);
            goto cleanup;
        } else if (ret > 0) {
            vcpus = strtoI(temp);
        }

        if (ret == 0 || vcpus == 0)
            vcpus = openvzGetNodeCPUs();

        def->maxvcpus = vcpus;
        def->vcpus = vcpus;

        /* XXX load rest of VM config data .... */

        openvzReadNetworkConf(def, veid);
        openvzReadFSConf(def, veid);
        openvzReadMemConf(def, veid);

        virUUIDFormat(def->uuid, uuidstr);
        flags = VIR_DOMAIN_OBJ_LIST_ADD_CHECK_LIVE;
        if (STRNEQ(status, "stopped"))
            flags |= VIR_DOMAIN_OBJ_LIST_ADD_LIVE;

        if (!(dom = virDomainObjListAdd(driver->domains,
                                        def,
                                        driver->xmlopt,
                                        flags,
                                        NULL)))
            goto cleanup;

        if (STREQ(status, "stopped")) {
            virDomainObjSetState(dom, VIR_DOMAIN_SHUTOFF,
                                 VIR_DOMAIN_SHUTOFF_UNKNOWN);
            dom->pid = -1;
        } else {
            virDomainObjSetState(dom, VIR_DOMAIN_RUNNING,
                                 VIR_DOMAIN_RUNNING_UNKNOWN);
            dom->pid = veid;
        }
        /* XXX OpenVZ doesn't appear to have concept of a transient domain */
        dom->persistent = 1;

        virObjectUnlock(dom);
        dom = NULL;
        def = NULL;
    }

    virCommandFree(cmd);
    VIR_FREE(temp);
    VIR_FREE(outbuf);

    return 0;

 cleanup:
    virCommandFree(cmd);
    VIR_FREE(temp);
    VIR_FREE(outbuf);
    virObjectUnref(dom);
    virDomainDefFree(def);
    return -1;
}
示例#26
0
static int
virStorageBackendZFSRefreshPool(virConnectPtr conn ATTRIBUTE_UNUSED,
                                virStoragePoolObjPtr pool ATTRIBUTE_UNUSED)
{
    virCommandPtr cmd = NULL;
    char *zpool_props = NULL;
    char **lines = NULL;
    char **tokens = NULL;
    size_t i;

    /**
     * $ zpool get -Hp health,size,free,allocated test
     * test    health  ONLINE  -
     * test    size    199715979264    -
     * test    free    198899976704    -
     * test    allocated       816002560       -
     * $
     *
     * Here we just provide a list of properties we want to see
     */
    cmd = virCommandNewArgList(ZPOOL,
                               "get", "-Hp",
                               "health,size,free,allocated",
                               pool->def->source.name,
                               NULL);
    virCommandSetOutputBuffer(cmd, &zpool_props);
    if (virCommandRun(cmd, NULL) < 0)
        goto cleanup;

    if (!(lines = virStringSplit(zpool_props, "\n", 0)))
        goto cleanup;

    for (i = 0; lines[i]; i++) {
        size_t count;
        char *prop_name;

        if (STREQ(lines[i], ""))
            continue;

        virStringFreeList(tokens);
        if (!(tokens = virStringSplitCount(lines[i], "\t", 0, &count)))
            goto cleanup;

        if (count != 4)
            continue;

        prop_name = tokens[1];

        if (STREQ(prop_name, "free") || STREQ(prop_name, "size") ||
            STREQ(prop_name, "allocated")) {
            unsigned long long value;
            if (virStrToLong_ull(tokens[2], NULL, 10, &value) < 0)
                goto cleanup;

            if (STREQ(prop_name, "free"))
                pool->def->available = value;
            else if (STREQ(prop_name, "size"))
                pool->def->capacity = value;
            else if (STREQ(prop_name, "allocated"))
                pool->def->allocation = value;
        }
    }

    /* Obtain a list of volumes */
    if (virStorageBackendZFSFindVols(pool, NULL) < 0)
        goto cleanup;

 cleanup:
    virCommandFree(cmd);
    virStringFreeList(lines);
    virStringFreeList(tokens);
    VIR_FREE(zpool_props);

    return 0;
}