qemu_conf.c 126.9 KB
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/*
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 * qemu_conf.c: QEMU configuration management
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 *
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 * Copyright (C) 2006, 2007, 2008, 2009 Red Hat, Inc.
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 * Copyright (C) 2006 Daniel P. Berrange
 *
 * This library 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; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 *
 * Author: Daniel P. Berrange <berrange@redhat.com>
 */

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#include <config.h>
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#include <dirent.h>
#include <string.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/stat.h>
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#include <stdlib.h>
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#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
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#include <sys/wait.h>
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#include <arpa/inet.h>
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#include <sys/utsname.h>
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#include <mntent.h>
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#include "c-ctype.h"
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#include "virterror_internal.h"
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#include "qemu_conf.h"
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#include "qemu_bridge_filter.h"
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#include "uuid.h"
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#include "buf.h"
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#include "conf.h"
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#include "util.h"
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#include "memory.h"
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#include "verify.h"
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#include "datatypes.h"
#include "xml.h"
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#include "nodeinfo.h"
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#include "logging.h"
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#include "network.h"
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#define VIR_FROM_THIS VIR_FROM_QEMU

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VIR_ENUM_DECL(virDomainDiskQEMUBus)
VIR_ENUM_IMPL(virDomainDiskQEMUBus, VIR_DOMAIN_DISK_BUS_LAST,
              "ide",
              "floppy",
              "scsi",
              "virtio",
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              "xen",
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              "usb",
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              "uml",
              "sata")
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VIR_ENUM_DECL(qemuDiskCacheV1)
VIR_ENUM_DECL(qemuDiskCacheV2)

VIR_ENUM_IMPL(qemuDiskCacheV1, VIR_DOMAIN_DISK_CACHE_LAST,
              "default",
              "off",
              "off", /* writethrough not supported, so for safety, disable */
              "on"); /* Old 'on' was equivalent to 'writeback' */

VIR_ENUM_IMPL(qemuDiskCacheV2, VIR_DOMAIN_DISK_CACHE_LAST,
              "default",
              "none",
              "writethrough",
              "writeback");

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VIR_ENUM_DECL(qemuVideo)

VIR_ENUM_IMPL(qemuVideo, VIR_DOMAIN_VIDEO_TYPE_LAST,
              "std",
              "cirrus",
              "vmware",
              NULL, /* no arg needed for xen */
              NULL /* don't support vbox */);

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#define PROC_MOUNT_BUF_LEN 255
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int qemudLoadDriverConfig(struct qemud_driver *driver,
                          const char *filename) {
    virConfPtr conf;
    virConfValuePtr p;
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    char *user;
    char *group;
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    int i;
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    /* Setup 2 critical defaults */
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    if (!(driver->vncListen = strdup("127.0.0.1"))) {
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        virReportOOMError(NULL);
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        return -1;
    }
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    if (!(driver->vncTLSx509certdir = strdup(SYSCONF_DIR "/pki/libvirt-vnc"))) {
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        virReportOOMError(NULL);
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        return -1;
    }

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#ifdef HAVE_MNTENT_H
    /* For privileged driver, try and find hugepage mount automatically.
     * Non-privileged driver requires admin to create a dir for the
     * user, chown it, and then let user configure it manually */
    if (driver->privileged &&
        !(driver->hugetlbfs_mount = virFileFindMountPoint("hugetlbfs"))) {
        if (errno != ENOENT) {
            virReportSystemError(NULL, errno, "%s",
                                 _("unable to find hugetlbfs mountpoint"));
            return -1;
        }
    }
#endif


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    /* Just check the file is readable before opening it, otherwise
     * libvirt emits an error.
     */
    if (access (filename, R_OK) == -1) return 0;

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    conf = virConfReadFile (filename, 0);
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    if (!conf) return 0;


#define CHECK_TYPE(name,typ) if (p && p->type != (typ)) {               \
        qemudReportError(NULL, NULL, NULL, VIR_ERR_INTERNAL_ERROR,      \
                         "remoteReadConfigFile: %s: %s: expected type " #typ "\n", \
                         filename, (name));                             \
        virConfFree(conf);                                              \
        return -1;                                                      \
    }

    p = virConfGetValue (conf, "vnc_tls");
    CHECK_TYPE ("vnc_tls", VIR_CONF_LONG);
    if (p) driver->vncTLS = p->l;

    p = virConfGetValue (conf, "vnc_tls_x509_verify");
    CHECK_TYPE ("vnc_tls_x509_verify", VIR_CONF_LONG);
    if (p) driver->vncTLSx509verify = p->l;

    p = virConfGetValue (conf, "vnc_tls_x509_cert_dir");
    CHECK_TYPE ("vnc_tls_x509_cert_dir", VIR_CONF_STRING);
    if (p && p->str) {
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        VIR_FREE(driver->vncTLSx509certdir);
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        if (!(driver->vncTLSx509certdir = strdup(p->str))) {
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            virReportOOMError(NULL);
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            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "vnc_listen");
    CHECK_TYPE ("vnc_listen", VIR_CONF_STRING);
    if (p && p->str) {
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        VIR_FREE(driver->vncListen);
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        if (!(driver->vncListen = strdup(p->str))) {
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            virReportOOMError(NULL);
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            virConfFree(conf);
            return -1;
        }
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    }

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    p = virConfGetValue (conf, "vnc_password");
    CHECK_TYPE ("vnc_password", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->vncPassword);
        if (!(driver->vncPassword = strdup(p->str))) {
            virReportOOMError(NULL);
            virConfFree(conf);
            return -1;
        }
    }

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    p = virConfGetValue (conf, "security_driver");
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    CHECK_TYPE ("security_driver", VIR_CONF_STRING);
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    if (p && p->str) {
        if (!(driver->securityDriverName = strdup(p->str))) {
            virReportOOMError(NULL);
            virConfFree(conf);
            return -1;
        }
    }

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    p = virConfGetValue (conf, "vnc_sasl");
    CHECK_TYPE ("vnc_sasl", VIR_CONF_LONG);
    if (p) driver->vncSASL = p->l;

    p = virConfGetValue (conf, "vnc_sasl_dir");
    CHECK_TYPE ("vnc_sasl_dir", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->vncSASLdir);
        if (!(driver->vncSASLdir = strdup(p->str))) {
            virReportOOMError(NULL);
            virConfFree(conf);
            return -1;
        }
    }

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    p = virConfGetValue (conf, "user");
    CHECK_TYPE ("user", VIR_CONF_STRING);
    if (!(user = strdup(p && p->str ? p->str : QEMU_USER))) {
        virReportOOMError(NULL);
        virConfFree(conf);
        return -1;
    }
    if (virGetUserID(NULL, user, &driver->user) < 0) {
        VIR_FREE(user);
        virConfFree(conf);
        return -1;
    }
    VIR_FREE(user);

    p = virConfGetValue (conf, "group");
    CHECK_TYPE ("group", VIR_CONF_STRING);
    if (!(group = strdup(p && p->str ? p->str : QEMU_GROUP))) {
        virReportOOMError(NULL);
        virConfFree(conf);
        return -1;
    }


    if (virGetGroupID(NULL, group, &driver->group) < 0) {
        VIR_FREE(group);
        virConfFree(conf);
        return -1;
    }
    VIR_FREE(group);

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    p = virConfGetValue (conf, "cgroup_controllers");
    CHECK_TYPE ("cgroup_controllers", VIR_CONF_LIST);
    if (p) {
        virConfValuePtr pp;
        for (i = 0, pp = p->list; pp; ++i, pp = pp->next) {
            int ctl;
            if (pp->type != VIR_CONF_STRING) {
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                VIR_ERROR("%s", _("cgroup_controllers must be a list of strings"));
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                virConfFree(conf);
                return -1;
            }
            ctl = virCgroupControllerTypeFromString(pp->str);
            if (ctl < 0) {
                VIR_ERROR("Unknown cgroup controller '%s'", pp->str);
                virConfFree(conf);
                return -1;
            }
            driver->cgroupControllers |= (1 << ctl);
        }
    } else {
        driver->cgroupControllers =
            (1 << VIR_CGROUP_CONTROLLER_CPU) |
            (1 << VIR_CGROUP_CONTROLLER_DEVICES);
    }
    for (i = 0 ; i < VIR_CGROUP_CONTROLLER_LAST ; i++) {
        if (driver->cgroupControllers & (1 << i)) {
            VIR_INFO("Configured cgroup controller '%s'",
                     virCgroupControllerTypeToString(i));
        }
    }

    p = virConfGetValue (conf, "cgroup_device_acl");
    CHECK_TYPE ("cgroup_device_acl", VIR_CONF_LIST);
    if (p) {
        int len = 0;
        virConfValuePtr pp;
        for (pp = p->list; pp; pp = pp->next)
            len++;
        if (VIR_ALLOC_N(driver->cgroupDeviceACL, 1+len) < 0) {
            virReportOOMError(NULL);
            virConfFree(conf);
            return -1;
        }
        for (i = 0, pp = p->list; pp; ++i, pp = pp->next) {
            if (pp->type != VIR_CONF_STRING) {
                VIR_ERROR("%s", _("cgroup_device_acl must be a list of strings"));
                virConfFree(conf);
                return -1;
            }
            driver->cgroupDeviceACL[i] = strdup (pp->str);
            if (driver->cgroupDeviceACL[i] == NULL) {
                virReportOOMError(NULL);
                virConfFree(conf);
                return -1;
            }

        }
        driver->cgroupDeviceACL[i] = NULL;
    }

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    p = virConfGetValue (conf, "save_image_format");
    CHECK_TYPE ("save_image_format", VIR_CONF_STRING);
    if (p && p->str) {
        VIR_FREE(driver->saveImageFormat);
        if (!(driver->saveImageFormat = strdup(p->str))) {
            virReportOOMError(NULL);
            virConfFree(conf);
            return -1;
        }
    }

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     p = virConfGetValue (conf, "hugetlbfs_mount");
     CHECK_TYPE ("hugetlbfs_mount", VIR_CONF_STRING);
     if (p && p->str) {
         VIR_FREE(driver->hugetlbfs_mount);
         if (!(driver->hugetlbfs_mount = strdup(p->str))) {
             virReportOOMError(NULL);
             virConfFree(conf);
             return -1;
         }
     }

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    p = virConfGetValue (conf, "mac_filter");
    CHECK_TYPE ("mac_filter", VIR_CONF_LONG);
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    if (p && p->l) {
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        driver->macFilter = p->l;
        if (!(driver->ebtables = ebtablesContextNew("qemu"))) {
            driver->macFilter = 0;
            virReportSystemError(NULL, errno,
                                 _("failed to enable mac filter in in '%s'"),
                                 __FILE__);
        }

        if ((errno = networkDisableAllFrames(driver))) {
            virReportSystemError(NULL, errno,
                         _("failed to add rule to drop all frames in '%s'"),
                                 __FILE__);
        }
    }

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    virConfFree (conf);
    return 0;
}

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struct qemu_feature_flags {
    const char *name;
    const int default_on;
    const int toggle;
};

struct qemu_arch_info {
    const char *arch;
    int wordsize;
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    const char *machine;
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    const char *binary;
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    const char *altbinary;
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    const struct qemu_feature_flags *flags;
    int nflags;
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};

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/* Feature flags for the architecture info */
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static const struct qemu_feature_flags const arch_info_i686_flags [] = {
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    { "pae",  1, 0 },
    { "nonpae",  1, 0 },
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    { "acpi", 1, 1 },
    { "apic", 1, 0 },
};

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static const struct qemu_feature_flags const arch_info_x86_64_flags [] = {
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    { "acpi", 1, 1 },
    { "apic", 1, 0 },
};

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/* The archicture tables for supported QEMU archs */
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static const struct qemu_arch_info const arch_info_hvm[] = {
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    {  "i686",   32, NULL, "/usr/bin/qemu",
       "/usr/bin/qemu-system-x86_64", arch_info_i686_flags, 4 },
    {  "x86_64", 64, NULL, "/usr/bin/qemu-system-x86_64",
       NULL, arch_info_x86_64_flags, 2 },
    {  "arm",    32, NULL, "/usr/bin/qemu-system-arm",    NULL, NULL, 0 },
    {  "mips",   32, NULL, "/usr/bin/qemu-system-mips",   NULL, NULL, 0 },
    {  "mipsel", 32, NULL, "/usr/bin/qemu-system-mipsel", NULL, NULL, 0 },
    {  "sparc",  32, NULL, "/usr/bin/qemu-system-sparc",  NULL, NULL, 0 },
    {  "ppc",    32, NULL, "/usr/bin/qemu-system-ppc",    NULL, NULL, 0 },
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};

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static const struct qemu_arch_info const arch_info_xen[] = {
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    {  "i686",   32, "xenner", "/usr/bin/xenner", NULL, arch_info_i686_flags, 4 },
    {  "x86_64", 64, "xenner", "/usr/bin/xenner", NULL, arch_info_x86_64_flags, 2 },
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};
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/* Format is:
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 * <machine> <desc> [(default)|(alias of <canonical>)]
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 */
static int
qemudParseMachineTypesStr(const char *output,
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                          virCapsGuestMachinePtr **machines,
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                          int *nmachines)
{
    const char *p = output;
    const char *next;
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    virCapsGuestMachinePtr *list = NULL;
    int nitems = 0;
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    do {
        const char *t;
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        virCapsGuestMachinePtr machine;
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        if ((next = strchr(p, '\n')))
            ++next;

        if (STRPREFIX(p, "Supported machines are:"))
            continue;

        if (!(t = strchr(p, ' ')) || (next && t >= next))
            continue;

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        if (VIR_ALLOC(machine) < 0)
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            goto no_memory;
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        if (!(machine->name = strndup(p, t - p))) {
            VIR_FREE(machine);
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            goto no_memory;
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        }

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        if (VIR_REALLOC_N(list, nitems + 1) < 0) {
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            VIR_FREE(machine->name);
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            VIR_FREE(machine);
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            goto no_memory;
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        }

        p = t;
        if (!(t = strstr(p, "(default)")) || (next && t >= next)) {
            list[nitems++] = machine;
        } else {
            /* put the default first in the list */
            memmove(list + 1, list, sizeof(*list) * nitems);
            list[0] = machine;
            nitems++;
        }
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        if ((t = strstr(p, "(alias of ")) && (!next || t < next)) {
            p = t + strlen("(alias of ");
            if (!(t = strchr(p, ')')) || (next && t >= next))
                continue;

            if (!(machine->canonical = strndup(p, t - p)))
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                goto no_memory;
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        }
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    } while ((p = next));

    *machines = list;
    *nmachines = nitems;

    return 0;

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  no_memory:
    virReportOOMError(NULL);
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    virCapabilitiesFreeMachines(list, nitems);
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    return -1;
}

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int
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qemudProbeMachineTypes(const char *binary,
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                       virCapsGuestMachinePtr **machines,
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                       int *nmachines)
{
    const char *const qemuarg[] = { binary, "-M", "?", NULL };
    const char *const qemuenv[] = { "LC_ALL=C", NULL };
    char *output;
    enum { MAX_MACHINES_OUTPUT_SIZE = 1024*4 };
    pid_t child;
    int newstdout = -1, len;
    int ret = -1, status;

    if (virExec(NULL, qemuarg, qemuenv, NULL,
                &child, -1, &newstdout, NULL, VIR_EXEC_CLEAR_CAPS) < 0)
        return -1;

    len = virFileReadLimFD(newstdout, MAX_MACHINES_OUTPUT_SIZE, &output);
    if (len < 0) {
        virReportSystemError(NULL, errno, "%s",
                             _("Unable to read 'qemu -M ?' output"));
        goto cleanup;
    }

    if (qemudParseMachineTypesStr(output, machines, nmachines) < 0)
        goto cleanup2;

    ret = 0;

cleanup2:
    VIR_FREE(output);
cleanup:
    if (close(newstdout) < 0)
        ret = -1;

rewait:
    if (waitpid(child, &status, 0) != child) {
        if (errno == EINTR)
            goto rewait;

        VIR_ERROR(_("Unexpected exit status from qemu %d pid %lu"),
                  WEXITSTATUS(status), (unsigned long)child);
        ret = -1;
    }
    /* Check & log unexpected exit status, but don't fail,
     * as there's really no need to throw an error if we did
     * actually read a valid version number above */
    if (WEXITSTATUS(status) != 0) {
        VIR_WARN(_("Unexpected exit status '%d', qemu probably failed"),
                 WEXITSTATUS(status));
    }

    return ret;
}

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static int
qemudGetOldMachinesFromInfo(virCapsGuestDomainInfoPtr info,
                            const char *emulator,
                            time_t emulator_mtime,
                            virCapsGuestMachinePtr **machines,
                            int *nmachines)
{
    virCapsGuestMachinePtr *list;
    int i;

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    if (!info->nmachines)
        return 0;

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    if (!info->emulator || !STREQ(emulator, info->emulator))
        return 0;

    if (emulator_mtime != info->emulator_mtime) {
        VIR_DEBUG("mtime on %s has changed, refreshing machine types",
                  info->emulator);
        return 0;
    }

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    if (VIR_ALLOC_N(list, info->nmachines) < 0) {
        virReportOOMError(NULL);
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        return 0;
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    }
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    for (i = 0; i < info->nmachines; i++) {
        if (VIR_ALLOC(list[i]) < 0) {
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            goto no_memory;
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        }
        if (info->machines[i]->name &&
            !(list[i]->name = strdup(info->machines[i]->name))) {
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            goto no_memory;
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        }
        if (info->machines[i]->canonical &&
            !(list[i]->canonical = strdup(info->machines[i]->canonical))) {
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            goto no_memory;
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        }
    }

    *machines = list;
    *nmachines = info->nmachines;

    return 1;
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  no_memory:
    virReportOOMError(NULL);
    virCapabilitiesFreeMachines(list, info->nmachines);
    return 0;
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}

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static int
qemudGetOldMachines(const char *ostype,
                    const char *arch,
                    int wordsize,
                    const char *emulator,
                    time_t emulator_mtime,
                    virCapsPtr old_caps,
                    virCapsGuestMachinePtr **machines,
                    int *nmachines)
{
    int i;

    for (i = 0; i < old_caps->nguests; i++) {
        virCapsGuestPtr guest = old_caps->guests[i];
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        int j;
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        if (!STREQ(ostype, guest->ostype) ||
            !STREQ(arch, guest->arch.name) ||
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            wordsize != guest->arch.wordsize)
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            continue;

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        for (j = 0; j < guest->arch.ndomains; j++) {
            virCapsGuestDomainPtr dom = guest->arch.domains[j];

            if (qemudGetOldMachinesFromInfo(&dom->info,
                                            emulator, emulator_mtime,
                                            machines, nmachines))
                return 1;
        }

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        if (qemudGetOldMachinesFromInfo(&guest->arch.defaultInfo,
                                        emulator, emulator_mtime,
                                        machines, nmachines))
            return 1;
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    }

    return 0;
}

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static int
qemudCapsInitGuest(virCapsPtr caps,
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                   virCapsPtr old_caps,
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                   const char *hostmachine,
                   const struct qemu_arch_info *info,
                   int hvm) {
    virCapsGuestPtr guest;
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    int i;
    int haskvm = 0;
    int haskqemu = 0;
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    const char *kvmbin = NULL;
622
    const char *binary = NULL;
623
    time_t binary_mtime;
624
    virCapsGuestMachinePtr *machines = NULL;
M
Mark McLoughlin 已提交
625
    int nmachines = 0;
626
    struct stat st;
627

628 629 630
    /* Check for existance of base emulator, or alternate base
     * which can be used with magic cpu choice
     */
631 632 633 634
    if (access(info->binary, X_OK) == 0)
        binary = info->binary;
    else if (info->altbinary && access(info->altbinary, X_OK) == 0)
        binary = info->altbinary;
635

636 637 638 639 640 641 642 643
    /* Can use acceleration for KVM/KQEMU if
     *  - host & guest arches match
     * Or
     *  - hostarch is x86_64 and guest arch is i686
     * The latter simply needs "-cpu qemu32"
     */
    if (STREQ(info->arch, hostmachine) ||
        (STREQ(hostmachine, "x86_64") && STREQ(info->arch, "i686"))) {
644 645 646 647
        const char *const kvmbins[] = { "/usr/bin/qemu-kvm", /* Fedora */
                                        "/usr/bin/kvm" }; /* Upstream .spec */

        for (i = 0; i < ARRAY_CARDINALITY(kvmbins); ++i) {
648 649 650
            if (access(kvmbins[i], X_OK) == 0 &&
                access("/dev/kvm", F_OK) == 0) {
                haskvm = 1;
651
                kvmbin = kvmbins[i];
652 653
                if (!binary)
                    binary = kvmbin;
654 655 656
                break;
            }
        }
657 658 659

        if (access("/dev/kqemu", F_OK) == 0)
            haskqemu = 1;
660 661
    }

662
    if (!binary)
663
        return 0;
D
Daniel P. Berrange 已提交
664

665 666 667 668 669 670 671 672 673
    if (stat(binary, &st) == 0) {
        binary_mtime = st.st_mtime;
    } else {
        char ebuf[1024];
        VIR_WARN(_("Failed to stat %s, most peculiar : %s"),
                 binary, virStrerror(errno, ebuf, sizeof(ebuf)));
        binary_mtime = 0;
    }

M
Mark McLoughlin 已提交
674
    if (info->machine) {
675 676
        virCapsGuestMachinePtr machine;

677 678
        if (VIR_ALLOC(machine) < 0) {
            virReportOOMError(NULL);
679
            return -1;
680
        }
M
Mark McLoughlin 已提交
681

682
        if (!(machine->name = strdup(info->machine))) {
683
            virReportOOMError(NULL);
684
            VIR_FREE(machine);
M
Mark McLoughlin 已提交
685
            return -1;
686
        }
M
Mark McLoughlin 已提交
687 688

        if (VIR_ALLOC_N(machines, nmachines) < 0) {
689
            virReportOOMError(NULL);
690
            VIR_FREE(machine->name);
M
Mark McLoughlin 已提交
691 692 693 694 695 696
            VIR_FREE(machine);
            return -1;
        }

        machines[0] = machine;
        nmachines = 1;
697 698 699 700 701 702 703 704 705 706
    } else {
        int probe = 1;
        if (old_caps && binary_mtime)
            probe = !qemudGetOldMachines(hvm ? "hvm" : "xen", info->arch,
                                         info->wordsize, binary, binary_mtime,
                                         old_caps, &machines, &nmachines);
        if (probe &&
            qemudProbeMachineTypes(binary, &machines, &nmachines) < 0)
            return -1;
    }
M
Mark McLoughlin 已提交
707

708 709
    /* We register kvm as the base emulator too, since we can
     * just give -no-kvm to disable acceleration if required */
710 711 712 713
    if ((guest = virCapabilitiesAddGuest(caps,
                                         hvm ? "hvm" : "xen",
                                         info->arch,
                                         info->wordsize,
714
                                         binary,
715
                                         NULL,
M
Mark McLoughlin 已提交
716
                                         nmachines,
717 718 719
                                         machines)) == NULL) {
        for (i = 0; i < nmachines; i++) {
            VIR_FREE(machines[i]->name);
M
Mark McLoughlin 已提交
720
            VIR_FREE(machines[i]);
721
        }
M
Mark McLoughlin 已提交
722
        VIR_FREE(machines);
723
        return -1;
M
Mark McLoughlin 已提交
724 725
    }

726 727
    guest->arch.defaultInfo.emulator_mtime = binary_mtime;

728
    if (hvm) {
729
        if (virCapabilitiesAddGuestDomain(guest,
730 731 732 733 734 735
                                          "qemu",
                                          NULL,
                                          NULL,
                                          0,
                                          NULL) == NULL)
            return -1;
D
Daniel P. Berrange 已提交
736

737 738 739 740 741 742 743 744
        if (haskqemu &&
            virCapabilitiesAddGuestDomain(guest,
                                          "kqemu",
                                          NULL,
                                          NULL,
                                          0,
                                          NULL) == NULL)
            return -1;
745

746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787
        if (haskvm) {
            virCapsGuestDomainPtr dom;

            if (stat(kvmbin, &st) == 0) {
                binary_mtime = st.st_mtime;
            } else {
                char ebuf[1024];
                VIR_WARN(_("Failed to stat %s, most peculiar : %s"),
                         binary, virStrerror(errno, ebuf, sizeof(ebuf)));
                binary_mtime = 0;
            }

            machines = NULL;
            nmachines = 0;

            if (!STREQ(binary, kvmbin)) {
                int probe = 1;
                if (old_caps && binary_mtime)
                    probe = !qemudGetOldMachines("hvm", info->arch, info->wordsize,
                                                 kvmbin, binary_mtime,
                                                 old_caps, &machines, &nmachines);
                if (probe &&
                    qemudProbeMachineTypes(kvmbin, &machines, &nmachines) < 0)
                    return -1;
            }

            if ((dom = virCapabilitiesAddGuestDomain(guest,
                                                     "kvm",
                                                     kvmbin,
                                                     NULL,
                                                     nmachines,
                                                     machines)) == NULL) {
                for (i = 0; i < nmachines; i++) {
                    VIR_FREE(machines[i]->name);
                    VIR_FREE(machines[i]);
                }
                VIR_FREE(machines);
                return -1;
            }

            dom->info.emulator_mtime = binary_mtime;
        }
788 789 790 791 792 793 794 795 796
    } else {
        if (virCapabilitiesAddGuestDomain(guest,
                                          "kvm",
                                          NULL,
                                          NULL,
                                          0,
                                          NULL) == NULL)
            return -1;
    }
D
Daniel P. Berrange 已提交
797

798 799 800 801 802 803 804
    if (info->nflags) {
        for (i = 0 ; i < info->nflags ; i++) {
            if (virCapabilitiesAddGuestFeature(guest,
                                               info->flags[i].name,
                                               info->flags[i].default_on,
                                               info->flags[i].toggle) == NULL)
                return -1;
D
Daniel P. Berrange 已提交
805 806 807
        }
    }

808
    return 0;
D
Daniel P. Berrange 已提交
809 810
}

811
virCapsPtr qemudCapsInit(virCapsPtr old_caps) {
812 813 814
    struct utsname utsname;
    virCapsPtr caps;
    int i;
D
Daniel P. Berrange 已提交
815

816 817 818 819
    /* Really, this never fails - look at the man-page. */
    uname (&utsname);

    if ((caps = virCapabilitiesNew(utsname.machine,
820
                                   1, 1)) == NULL)
821 822
        goto no_memory;

823 824 825
    /* Using KVM's mac prefix for QEMU too */
    virCapabilitiesSetMacPrefix(caps, (unsigned char[]){ 0x52, 0x54, 0x00 });

826 827 828 829 830 831 832 833
    /* Some machines have problematic NUMA toplogy causing
     * unexpected failures. We don't want to break the QEMU
     * driver in this scenario, so log errors & carry on
     */
    if (nodeCapsInitNUMA(caps) < 0) {
        virCapabilitiesFreeNUMAInfo(caps);
        VIR_WARN0("Failed to query host NUMA topology, disabling NUMA capabilities");
    }
834

835 836 837
    virCapabilitiesAddHostMigrateTransport(caps,
                                           "tcp");

838
    /* First the pure HVM guests */
J
Jim Meyering 已提交
839
    for (i = 0 ; i < ARRAY_CARDINALITY(arch_info_hvm) ; i++)
840
        if (qemudCapsInitGuest(caps, old_caps,
841 842 843 844
                               utsname.machine,
                               &arch_info_hvm[i], 1) < 0)
            goto no_memory;

845
    /* Then possibly the Xen paravirt guests (ie Xenner */
846 847
    if (access("/usr/bin/xenner", X_OK) == 0 &&
        access("/dev/kvm", F_OK) == 0) {
J
Jim Meyering 已提交
848
        for (i = 0 ; i < ARRAY_CARDINALITY(arch_info_xen) ; i++)
849 850 851 852
            /* Allow Xen 32-on-32, 32-on-64 and 64-on-64 */
            if (STREQ(arch_info_xen[i].arch, utsname.machine) ||
                (STREQ(utsname.machine, "x86_64") &&
                 STREQ(arch_info_xen[i].arch, "i686"))) {
853
                if (qemudCapsInitGuest(caps, old_caps,
854 855 856 857
                                       utsname.machine,
                                       &arch_info_xen[i], 0) < 0)
                    goto no_memory;
            }
D
Daniel P. Berrange 已提交
858 859
    }

860 861 862
    /* QEMU Requires an emulator in the XML */
    virCapabilitiesSetEmulatorRequired(caps);

863 864 865 866 867
    return caps;

 no_memory:
    virCapabilitiesFree(caps);
    return NULL;
D
Daniel P. Berrange 已提交
868 869
}

M
Mark McLoughlin 已提交
870 871
static unsigned int qemudComputeCmdFlags(const char *help,
                                         unsigned int version,
M
Mark McLoughlin 已提交
872
                                         unsigned int is_kvm,
M
Mark McLoughlin 已提交
873 874
                                         unsigned int kvm_version)
{
875 876 877 878
    unsigned int flags = 0;

    if (strstr(help, "-no-kqemu"))
        flags |= QEMUD_CMD_FLAG_KQEMU;
879 880
    if (strstr(help, "-no-kvm"))
        flags |= QEMUD_CMD_FLAG_KVM;
881 882
    if (strstr(help, "-enable-kvm"))
        flags |= QEMUD_CMD_FLAG_ENABLE_KVM;
883 884 885 886
    if (strstr(help, "-no-reboot"))
        flags |= QEMUD_CMD_FLAG_NO_REBOOT;
    if (strstr(help, "-name"))
        flags |= QEMUD_CMD_FLAG_NAME;
887 888
    if (strstr(help, "-uuid"))
        flags |= QEMUD_CMD_FLAG_UUID;
889 890 891
    if (strstr(help, "-xen-domid"))
        flags |= QEMUD_CMD_FLAG_XEN_DOMID;
    else if (strstr(help, "-domid"))
892
        flags |= QEMUD_CMD_FLAG_DOMID;
893
    if (strstr(help, "-drive")) {
894
        flags |= QEMUD_CMD_FLAG_DRIVE;
895 896
        if (strstr(help, "cache=writethrough|writeback|none"))
            flags |= QEMUD_CMD_FLAG_DRIVE_CACHE_V2;
897 898
        if (strstr(help, "format="))
            flags |= QEMUD_CMD_FLAG_DRIVE_FORMAT;
899
    }
900 901
    if (strstr(help, "-vga") && !strstr(help, "-std-vga"))
        flags |= QEMUD_CMD_FLAG_VGA;
902 903
    if (strstr(help, "boot=on"))
        flags |= QEMUD_CMD_FLAG_DRIVE_BOOT;
904 905
    if (strstr(help, "serial=s"))
        flags |= QEMUD_CMD_FLAG_DRIVE_SERIAL;
906 907
    if (strstr(help, "-pcidevice"))
        flags |= QEMUD_CMD_FLAG_PCIDEVICE;
908 909
    if (strstr(help, "-mem-path"))
        flags |= QEMUD_CMD_FLAG_MEM_PATH;
910 911
    if (strstr(help, "-chardev"))
        flags |= QEMUD_CMD_FLAG_CHARDEV;
912

913 914
    if (version >= 9000)
        flags |= QEMUD_CMD_FLAG_VNC_COLON;
M
Mark McLoughlin 已提交
915 916

    if (is_kvm && (version >= 10000 || kvm_version >= 74))
917
        flags |= QEMUD_CMD_FLAG_VNET_HDR;
918

919 920
    /*
     * Handling of -incoming arg with varying features
921 922
     *  -incoming tcp    (kvm >= 79, qemu >= 0.10.0)
     *  -incoming exec   (kvm >= 80, qemu >= 0.10.0)
923 924 925 926 927 928
     *  -incoming stdio  (all earlier kvm)
     *
     * NB, there was a pre-kvm-79 'tcp' support, but it
     * was broken, because it blocked the monitor console
     * while waiting for data, so pretend it doesn't exist
     */
M
Mark McLoughlin 已提交
929 930 931
    if (version >= 10000) {
        flags |= QEMUD_CMD_FLAG_MIGRATE_QEMU_TCP;
        flags |= QEMUD_CMD_FLAG_MIGRATE_QEMU_EXEC;
932 933
        if (version >= 12000)
            flags |= QEMUD_CMD_FLAG_MIGRATE_QEMU_UNIX;
M
Mark McLoughlin 已提交
934
    } else if (kvm_version >= 79) {
935 936 937 938 939 940 941
        flags |= QEMUD_CMD_FLAG_MIGRATE_QEMU_TCP;
        if (kvm_version >= 80)
            flags |= QEMUD_CMD_FLAG_MIGRATE_QEMU_EXEC;
    } else if (kvm_version > 0) {
        flags |= QEMUD_CMD_FLAG_MIGRATE_KVM_STDIO;
    }

942 943 944
    if (version >= 10000)
        flags |= QEMUD_CMD_FLAG_0_10;

D
Daniel P. Berrange 已提交
945 946 947
    if (version >= 12000)
        flags |= QEMUD_CMD_FLAG_0_12;

M
Mark McLoughlin 已提交
948 949 950 951 952 953 954
    return flags;
}

/* We parse the output of 'qemu -help' to get the QEMU
 * version number. The first bit is easy, just parse
 * 'QEMU PC emulator version x.y.z'.
 *
M
Mark McLoughlin 已提交
955 956 957 958 959 960 961 962 963 964
 * With qemu-kvm, however, that is followed by a string
 * in parenthesis as follows:
 *  - qemu-kvm-x.y.z in stable releases
 *  - kvm-XX for kvm versions up to kvm-85
 *  - qemu-kvm-devel-XX for kvm version kvm-86 and later
 *
 * For qemu-kvm versions before 0.10.z, we need to detect
 * the KVM version number for some features. With 0.10.z
 * and later, we just need the QEMU version number and
 * whether it is KVM QEMU or mainline QEMU.
M
Mark McLoughlin 已提交
965 966
 */
#define QEMU_VERSION_STR    "QEMU PC emulator version"
M
Mark McLoughlin 已提交
967
#define QEMU_KVM_VER_PREFIX "(qemu-kvm-"
M
Mark McLoughlin 已提交
968 969 970 971
#define KVM_VER_PREFIX      "(kvm-"

#define SKIP_BLANKS(p) do { while ((*(p) == ' ') || (*(p) == '\t')) (p)++; } while (0)

972 973 974 975 976
int qemudParseHelpStr(const char *help,
                      unsigned int *flags,
                      unsigned int *version,
                      unsigned int *is_kvm,
                      unsigned int *kvm_version)
M
Mark McLoughlin 已提交
977 978 979 980
{
    unsigned major, minor, micro;
    const char *p = help;

M
Mark McLoughlin 已提交
981
    *flags = *version = *is_kvm = *kvm_version = 0;
M
Mark McLoughlin 已提交
982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007

    if (!STRPREFIX(p, QEMU_VERSION_STR))
        goto fail;

    p += strlen(QEMU_VERSION_STR);

    SKIP_BLANKS(p);

    major = virParseNumber(&p);
    if (major == -1 || *p != '.')
        goto fail;

    ++p;

    minor = virParseNumber(&p);
    if (major == -1 || *p != '.')
        goto fail;

    ++p;

    micro = virParseNumber(&p);
    if (major == -1)
        goto fail;

    SKIP_BLANKS(p);

M
Mark McLoughlin 已提交
1008 1009 1010 1011
    if (STRPREFIX(p, QEMU_KVM_VER_PREFIX)) {
        *is_kvm = 1;
        p += strlen(QEMU_KVM_VER_PREFIX);
    } else if (STRPREFIX(p, KVM_VER_PREFIX)) {
M
Mark McLoughlin 已提交
1012 1013
        int ret;

M
Mark McLoughlin 已提交
1014
        *is_kvm = 1;
M
Mark McLoughlin 已提交
1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025
        p += strlen(KVM_VER_PREFIX);

        ret = virParseNumber(&p);
        if (ret == -1)
            goto fail;

        *kvm_version = ret;
    }

    *version = (major * 1000 * 1000) + (minor * 1000) + micro;

M
Mark McLoughlin 已提交
1026
    *flags = qemudComputeCmdFlags(help, *version, *is_kvm, *kvm_version);
M
Mark McLoughlin 已提交
1027 1028 1029 1030

    qemudDebug("Version %u.%u.%u, cooked version %u, flags %u",
               major, minor, micro, *version, *flags);
    if (*kvm_version)
M
Mark McLoughlin 已提交
1031 1032 1033
        qemudDebug("KVM version %d detected", *kvm_version);
    else if (*is_kvm)
        qemudDebug("qemu-kvm version %u.%u.%u detected", major, minor, micro);
M
Mark McLoughlin 已提交
1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058

    return 0;

fail:
    p = strchr(help, '\n');
    if (p)
        p = strndup(help, p - help);

    qemudReportError(NULL, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                     _("cannot parse QEMU version number in '%s'"),
                     p ? p : help);

    VIR_FREE(p);

    return -1;
}

int qemudExtractVersionInfo(const char *qemu,
                            unsigned int *retversion,
                            unsigned int *retflags) {
    const char *const qemuarg[] = { qemu, "-help", NULL };
    const char *const qemuenv[] = { "LC_ALL=C", NULL };
    pid_t child;
    int newstdout = -1;
    int ret = -1, status;
M
Mark McLoughlin 已提交
1059
    unsigned int version, is_kvm, kvm_version;
M
Mark McLoughlin 已提交
1060 1061 1062 1063 1064 1065 1066 1067
    unsigned int flags = 0;

    if (retflags)
        *retflags = 0;
    if (retversion)
        *retversion = 0;

    if (virExec(NULL, qemuarg, qemuenv, NULL,
1068
                &child, -1, &newstdout, NULL, VIR_EXEC_CLEAR_CAPS) < 0)
M
Mark McLoughlin 已提交
1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079
        return -1;

    char *help = NULL;
    enum { MAX_HELP_OUTPUT_SIZE = 1024*64 };
    int len = virFileReadLimFD(newstdout, MAX_HELP_OUTPUT_SIZE, &help);
    if (len < 0) {
        virReportSystemError(NULL, errno, "%s",
                             _("Unable to read QEMU help output"));
        goto cleanup2;
    }

C
Cole Robinson 已提交
1080
    if (qemudParseHelpStr(help, &flags, &version, &is_kvm, &kvm_version) == -1)
M
Mark McLoughlin 已提交
1081 1082
        goto cleanup2;

1083 1084 1085 1086
    if (retversion)
        *retversion = version;
    if (retflags)
        *retflags = flags;
1087

1088
    ret = 0;
1089

1090
cleanup2:
1091
    VIR_FREE(help);
1092 1093
    if (close(newstdout) < 0)
        ret = -1;
1094

1095 1096 1097 1098 1099
rewait:
    if (waitpid(child, &status, 0) != child) {
        if (errno == EINTR)
            goto rewait;

1100 1101
        VIR_ERROR(_("Unexpected exit status from qemu %d pid %lu"),
                  WEXITSTATUS(status), (unsigned long)child);
1102 1103 1104 1105 1106 1107
        ret = -1;
    }
    /* Check & log unexpected exit status, but don't fail,
     * as there's really no need to throw an error if we did
     * actually read a valid version number above */
    if (WEXITSTATUS(status) != 0) {
1108
        VIR_WARN(_("Unexpected exit status '%d', qemu probably failed"),
1109
                 WEXITSTATUS(status));
1110
    }
1111 1112

    return ret;
1113 1114
}

1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128
static void
uname_normalize (struct utsname *ut)
{
    uname(ut);

    /* Map i386, i486, i586 to i686.  */
    if (ut->machine[0] == 'i' &&
        ut->machine[1] != '\0' &&
        ut->machine[2] == '8' &&
        ut->machine[3] == '6' &&
        ut->machine[4] == '\0')
        ut->machine[1] = '6';
}

1129
int qemudExtractVersion(virConnectPtr conn,
1130 1131
                        struct qemud_driver *driver) {
    const char *binary;
1132
    struct stat sb;
1133
    struct utsname ut;
1134

1135
    if (driver->qemuVersion > 0)
1136 1137
        return 0;

1138
    uname_normalize(&ut);
1139 1140
    if ((binary = virCapabilitiesDefaultGuestEmulator(driver->caps,
                                                      "hvm",
1141
                                                      ut.machine,
1142 1143
                                                      "qemu")) == NULL)
        return -1;
1144

1145
    if (stat(binary, &sb) < 0) {
C
Cole Robinson 已提交
1146 1147
        virReportSystemError(conn, errno,
                             _("Cannot find QEMU binary %s"), binary);
1148
        return -1;
1149 1150
    }

1151
    if (qemudExtractVersionInfo(binary, &driver->qemuVersion, NULL) < 0) {
1152 1153
        return -1;
    }
D
Daniel P. Berrange 已提交
1154

1155
    return 0;
D
Daniel P. Berrange 已提交
1156 1157 1158
}


1159
int
1160 1161
qemudNetworkIfaceConnect(virConnectPtr conn,
                         struct qemud_driver *driver,
1162
                         virDomainNetDefPtr net,
1163
                         int qemuCmdFlags)
1164
{
R
Ryota Ozaki 已提交
1165
    char *brname = NULL;
1166 1167
    int err;
    int tapfd = -1;
1168
    int vnet_hdr = 0;
1169
    int template_ifname = 0;
1170

1171
    if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK) {
1172 1173
        virNetworkPtr network = virNetworkLookupByName(conn,
                                                      net->data.network.name);
1174 1175 1176
        if (!network)
            return -1;

1177 1178 1179 1180
        brname = virNetworkGetBridgeName(network);

        virNetworkFree(network);

1181 1182
        if (brname == NULL)
            return -1;
1183
    } else if (net->type == VIR_DOMAIN_NET_TYPE_BRIDGE) {
1184 1185 1186 1187
        if (!(brname = strdup(net->data.bridge.brname))) {
            virReportOOMError(conn);
            return -1;
        }
1188
    } else {
1189
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
1190
                         _("Network type %d is not supported"), net->type);
1191
        return -1;
1192 1193
    }

1194
    if (!driver->brctl && (err = brInit(&driver->brctl))) {
1195 1196
        virReportSystemError(conn, err, "%s",
                             _("cannot initialize bridge support"));
R
Ryota Ozaki 已提交
1197
        goto cleanup;
1198 1199
    }

1200 1201 1202 1203 1204
    if (!net->ifname ||
        STRPREFIX(net->ifname, "vnet") ||
        strchr(net->ifname, '%')) {
        VIR_FREE(net->ifname);
        if (!(net->ifname = strdup("vnet%d"))) {
1205
            virReportOOMError(conn);
R
Ryota Ozaki 已提交
1206
            goto cleanup;
1207
        }
1208 1209
        /* avoid exposing vnet%d in dumpxml or error outputs */
        template_ifname = 1;
1210 1211
    }

1212 1213 1214 1215
    if (qemuCmdFlags & QEMUD_CMD_FLAG_VNET_HDR &&
        net->model && STREQ(net->model, "virtio"))
        vnet_hdr = 1;

1216
    if ((err = brAddTap(driver->brctl, brname,
1217
                        &net->ifname, vnet_hdr, &tapfd))) {
1218 1219 1220 1221 1222
        if (errno == ENOTSUP) {
            /* In this particular case, give a better diagnostic. */
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             _("Failed to add tap interface to bridge. "
                               "%s is not a bridge device"), brname);
1223
        } else if (template_ifname) {
1224 1225 1226
            virReportSystemError(conn, err,
                                 _("Failed to add tap interface to bridge '%s'"),
                                 brname);
1227
        } else {
1228 1229 1230
            virReportSystemError(conn, err,
                                 _("Failed to add tap interface '%s' to bridge '%s'"),
                                 net->ifname, brname);
1231
        }
1232 1233
        if (template_ifname)
            VIR_FREE(net->ifname);
R
Ryota Ozaki 已提交
1234
        tapfd = -1;
1235 1236
    }

1237 1238 1239 1240 1241 1242 1243 1244
    if (driver->macFilter) {
        if ((err = networkAllowMacOnPort(conn, driver, net->ifname, net->mac))) {
            virReportSystemError(conn, err,
                 _("failed to add ebtables rule to allow MAC address on  '%s'"),
                                 net->ifname);
        }
    }

R
Ryota Ozaki 已提交
1245 1246 1247
cleanup:
    VIR_FREE(brname);

1248
    return tapfd;
1249 1250
}

1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270
static const char *
qemuNetTypeToHostNet(int type)
{
    switch (type) {
    case VIR_DOMAIN_NET_TYPE_NETWORK:
    case VIR_DOMAIN_NET_TYPE_BRIDGE:
    case VIR_DOMAIN_NET_TYPE_ETHERNET:
        return "tap";

    case VIR_DOMAIN_NET_TYPE_CLIENT:
    case VIR_DOMAIN_NET_TYPE_SERVER:
    case VIR_DOMAIN_NET_TYPE_MCAST:
        return "socket";

    case VIR_DOMAIN_NET_TYPE_USER:
    default:
        return "user";
    }
}

M
Mark McLoughlin 已提交
1271
int
1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296
qemuAssignNetNames(virDomainDefPtr def,
                   virDomainNetDefPtr net)
{
    char *nic_name, *hostnet_name;
    int i, nic_index = 0, hostnet_index = 0;

    for (i = 0; i < def->nnets; i++) {
        if (def->nets[i] == net)
            continue;

        if (!def->nets[i]->nic_name || !def->nets[i]->hostnet_name)
            continue;

        if ((def->nets[i]->model == NULL && net->model == NULL) ||
            (def->nets[i]->model != NULL && net->model != NULL &&
             STREQ(def->nets[i]->model, net->model)))
            ++nic_index;

        if (STREQ(qemuNetTypeToHostNet(def->nets[i]->type),
                  qemuNetTypeToHostNet(net->type)))
            ++hostnet_index;
    }

    if (virAsprintf(&nic_name, "%s.%d",
                    net->model ? net->model : "nic",
1297 1298
                    nic_index) < 0) {
        virReportOOMError(NULL);
1299
        return -1;
1300
    }
1301 1302 1303 1304

    if (virAsprintf(&hostnet_name, "%s.%d",
                    qemuNetTypeToHostNet(net->type),
                    hostnet_index) < 0) {
1305
        virReportOOMError(NULL);
1306 1307 1308 1309 1310 1311 1312 1313 1314 1315
        VIR_FREE(nic_name);
        return -1;
    }

    net->nic_name = nic_name;
    net->hostnet_name = hostnet_name;

    return 0;
}

M
Mark McLoughlin 已提交
1316
int
1317 1318 1319 1320 1321 1322 1323
qemuBuildNicStr(virConnectPtr conn,
                virDomainNetDefPtr net,
                const char *prefix,
                int vlan,
                char **str)
{
    if (virAsprintf(str,
1324
                    "%smacaddr=%02x:%02x:%02x:%02x:%02x:%02x,vlan=%d%s%s%s%s",
1325 1326 1327 1328 1329 1330
                    prefix ? prefix : "",
                    net->mac[0], net->mac[1],
                    net->mac[2], net->mac[3],
                    net->mac[4], net->mac[5],
                    vlan,
                    (net->model ? ",model=" : ""),
1331 1332 1333
                    (net->model ? net->model : ""),
                    (net->nic_name ? ",name=" : ""),
                    (net->nic_name ? net->nic_name : "")) < 0) {
1334 1335 1336 1337 1338 1339
        virReportOOMError(conn);
        return -1;
    }

    return 0;
}
1340

M
Mark McLoughlin 已提交
1341
int
1342 1343 1344 1345
qemuBuildHostNetStr(virConnectPtr conn,
                    virDomainNetDefPtr net,
                    char type_sep,
                    int vlan,
1346
                    const char *tapfd,
1347 1348 1349 1350 1351
                    char **str)
{
    switch (net->type) {
    case VIR_DOMAIN_NET_TYPE_NETWORK:
    case VIR_DOMAIN_NET_TYPE_BRIDGE:
1352
        if (virAsprintf(str, "tap%cfd=%s,vlan=%d%s%s",
1353 1354 1355
                        type_sep, tapfd, vlan,
                        (net->hostnet_name ? ",name=" : ""),
                        (net->hostnet_name ? net->hostnet_name : "")) < 0) {
1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375
            virReportOOMError(conn);
            return -1;
        }
        break;

    case VIR_DOMAIN_NET_TYPE_ETHERNET:
        {
            virBuffer buf = VIR_BUFFER_INITIALIZER;

            virBufferAddLit(&buf, "tap");
            if (net->ifname) {
                virBufferVSprintf(&buf, "%cifname=%s", type_sep, net->ifname);
                type_sep = ',';
            }
            if (net->data.ethernet.script) {
                virBufferVSprintf(&buf, "%cscript=%s", type_sep,
                                  net->data.ethernet.script);
                type_sep = ',';
            }
            virBufferVSprintf(&buf, "%cvlan=%d", type_sep, vlan);
1376 1377 1378
            if (net->hostnet_name) {
                virBufferVSprintf(&buf, "%cname=%s", type_sep,
                                  net->hostnet_name);
1379
                type_sep = ','; /* dead-store, but leave it, in case... */
1380
            }
1381
            if (virBufferError(&buf)) {
1382
                virBufferFreeAndReset(&buf);
1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408
                virReportOOMError(conn);
                return -1;
            }

            *str = virBufferContentAndReset(&buf);
        }
        break;

    case VIR_DOMAIN_NET_TYPE_CLIENT:
    case VIR_DOMAIN_NET_TYPE_SERVER:
    case VIR_DOMAIN_NET_TYPE_MCAST:
        {
            const char *mode = NULL;

            switch (net->type) {
            case VIR_DOMAIN_NET_TYPE_CLIENT:
                mode = "connect";
                break;
            case VIR_DOMAIN_NET_TYPE_SERVER:
                mode = "listen";
                break;
            case VIR_DOMAIN_NET_TYPE_MCAST:
                mode = "mcast";
                break;
            }

1409
            if (virAsprintf(str, "socket%c%s=%s:%d,vlan=%d%s%s",
1410 1411 1412
                            type_sep, mode,
                            net->data.socket.address,
                            net->data.socket.port,
1413 1414 1415
                            vlan,
                            (net->hostnet_name ? ",name=" : ""),
                            (net->hostnet_name ? net->hostnet_name : "")) < 0) {
1416 1417 1418 1419 1420 1421 1422 1423
                virReportOOMError(conn);
                return -1;
            }
        }
        break;

    case VIR_DOMAIN_NET_TYPE_USER:
    default:
1424
        if (virAsprintf(str, "user%cvlan=%d%s%s",
1425 1426 1427
                        type_sep, vlan,
                        (net->hostnet_name ? ",name=" : ""),
                        (net->hostnet_name ? net->hostnet_name : "")) < 0) {
1428 1429 1430 1431 1432 1433 1434 1435 1436
            virReportOOMError(conn);
            return -1;
        }
        break;
    }

    return 0;
}

1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503
/* This function outputs a -chardev command line option which describes only the
 * host side of the character device */
static void qemudBuildCommandLineChrDevChardevStr(virDomainChrDefPtr dev,
                                                  const char *const id,
                                                  virBufferPtr buf)
{
    bool telnet;
    switch(dev->type) {
    case VIR_DOMAIN_CHR_TYPE_NULL:
        virBufferVSprintf(buf, "null,id=%s", id);
        break;

    case VIR_DOMAIN_CHR_TYPE_VC:
        virBufferVSprintf(buf, "vc,id=%s", id);
        break;

    case VIR_DOMAIN_CHR_TYPE_PTY:
        virBufferVSprintf(buf, "pty,id=%s", id);
        break;

    case VIR_DOMAIN_CHR_TYPE_DEV:
        virBufferVSprintf(buf, "tty,id=%s,path=%s", id, dev->data.file.path);
        break;

    case VIR_DOMAIN_CHR_TYPE_FILE:
        virBufferVSprintf(buf, "file,id=%s,path=%s", id, dev->data.file.path);
        break;

    case VIR_DOMAIN_CHR_TYPE_PIPE:
        virBufferVSprintf(buf, "pipe,id=%s,path=%s", id, dev->data.file.path);
        break;

    case VIR_DOMAIN_CHR_TYPE_STDIO:
        virBufferVSprintf(buf, "stdio,id=%s", id);
        break;

    case VIR_DOMAIN_CHR_TYPE_UDP:
        virBufferVSprintf(buf,
                          "udp,id=%s,host=%s,port=%s,localaddr=%s,localport=%s",
                          id,
                          dev->data.udp.connectHost,
                          dev->data.udp.connectService,
                          dev->data.udp.bindHost,
                          dev->data.udp.bindService);
        break;

    case VIR_DOMAIN_CHR_TYPE_TCP:
        telnet = dev->data.tcp.protocol == VIR_DOMAIN_CHR_TCP_PROTOCOL_TELNET;
        virBufferVSprintf(buf,
                          "socket,id=%s,host=%s,port=%s%s%s",
                          id,
                          dev->data.tcp.host,
                          dev->data.tcp.service,
                          telnet ? ",telnet" : "",
                          dev->data.tcp.listen ? ",server,nowait" : "");
        break;

    case VIR_DOMAIN_CHR_TYPE_UNIX:
        virBufferVSprintf(buf,
                          "socket,id=%s,path=%s%s",
                          id,
                          dev->data.nix.path,
                          dev->data.nix.listen ? ",server,nowait" : "");
        break;
    }
}

1504 1505
static void qemudBuildCommandLineChrDevStr(virDomainChrDefPtr dev,
                                           virBufferPtr buf)
1506
{
1507 1508
    switch (dev->type) {
    case VIR_DOMAIN_CHR_TYPE_NULL:
1509
        virBufferAddLit(buf, "null");
1510 1511
        break;

1512
    case VIR_DOMAIN_CHR_TYPE_VC:
1513
        virBufferAddLit(buf, "vc");
1514 1515
        break;

1516
    case VIR_DOMAIN_CHR_TYPE_PTY:
1517
        virBufferAddLit(buf, "pty");
1518 1519
        break;

1520
    case VIR_DOMAIN_CHR_TYPE_DEV:
1521
        virBufferStrcat(buf, dev->data.file.path, NULL);
1522 1523
        break;

1524
    case VIR_DOMAIN_CHR_TYPE_FILE:
1525
        virBufferVSprintf(buf, "file:%s", dev->data.file.path);
1526 1527
        break;

1528
    case VIR_DOMAIN_CHR_TYPE_PIPE:
1529
        virBufferVSprintf(buf, "pipe:%s", dev->data.file.path);
1530 1531
        break;

1532
    case VIR_DOMAIN_CHR_TYPE_STDIO:
1533
        virBufferAddLit(buf, "stdio");
1534 1535
        break;

1536
    case VIR_DOMAIN_CHR_TYPE_UDP:
1537 1538 1539 1540 1541
        virBufferVSprintf(buf, "udp:%s:%s@%s:%s",
                          dev->data.udp.connectHost,
                          dev->data.udp.connectService,
                          dev->data.udp.bindHost,
                          dev->data.udp.bindService);
1542 1543
        break;

1544
    case VIR_DOMAIN_CHR_TYPE_TCP:
1545
        if (dev->data.tcp.protocol == VIR_DOMAIN_CHR_TCP_PROTOCOL_TELNET) {
1546 1547 1548 1549
            virBufferVSprintf(buf, "telnet:%s:%s%s",
                              dev->data.tcp.host,
                              dev->data.tcp.service,
                              dev->data.tcp.listen ? ",server,nowait" : "");
1550
        } else {
1551 1552 1553 1554
            virBufferVSprintf(buf, "tcp:%s:%s%s",
                              dev->data.tcp.host,
                              dev->data.tcp.service,
                              dev->data.tcp.listen ? ",server,nowait" : "");
1555
        }
1556 1557
        break;

1558
    case VIR_DOMAIN_CHR_TYPE_UNIX:
1559 1560 1561
        virBufferVSprintf(buf, "unix:%s%s",
                          dev->data.nix.path,
                          dev->data.nix.listen ? ",server,nowait" : "");
1562 1563 1564 1565
        break;
    }
}

1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582
#define QEMU_SERIAL_PARAM_ACCEPTED_CHARS \
  "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_"

static int
qemuSafeSerialParamValue(virConnectPtr conn,
                         const char *value)
{
    if (strspn(value, QEMU_SERIAL_PARAM_ACCEPTED_CHARS) != strlen (value)) {
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                         _("driver serial '%s' contains unsafe characters"),
                         value);
        return -1;
    }

    return 0;
}

D
Daniel P. Berrange 已提交
1583 1584 1585 1586
/*
 * Constructs a argv suitable for launching qemu with config defined
 * for a given virtual machine.
 */
1587 1588
int qemudBuildCommandLine(virConnectPtr conn,
                          struct qemud_driver *driver,
1589
                          virDomainDefPtr def,
1590
                          virDomainChrDefPtr monitor_chr,
D
Daniel P. Berrange 已提交
1591
                          int monitor_json,
1592
                          unsigned int qemuCmdFlags,
1593
                          const char ***retargv,
1594
                          const char ***retenv,
1595 1596 1597
                          int **tapfds,
                          int *ntapfds,
                          const char *migrateFrom) {
1598
    int i;
D
Daniel P. Berrange 已提交
1599 1600
    char memory[50];
    char vcpus[50];
1601
    char boot[VIR_DOMAIN_BOOT_LAST];
1602 1603
    struct utsname ut;
    int disableKQEMU = 0;
1604
    int disableKVM = 0;
1605
    int enableKVM = 0;
1606
    int qargc = 0, qarga = 0;
1607
    const char **qargv = NULL;
1608 1609
    int qenvc = 0, qenva = 0;
    const char **qenv = NULL;
1610
    const char *emulator;
1611 1612
    char uuid[VIR_UUID_STRING_BUFLEN];
    char domid[50];
1613
    const char *cpu = NULL;
D
Daniel P. Berrange 已提交
1614

1615
    uname_normalize(&ut);
1616

1617
    virUUIDFormat(def->uuid, uuid);
1618

1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645
    /* Migration is very annoying due to wildly varying syntax & capabilities
     * over time of KVM / QEMU codebases
     */
    if (migrateFrom) {
        if (STRPREFIX(migrateFrom, "tcp")) {
            if (!(qemuCmdFlags & QEMUD_CMD_FLAG_MIGRATE_QEMU_TCP)) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_NO_SUPPORT,
                                 "%s", _("TCP migration is not supported with this QEMU binary"));
                return -1;
            }
        } else if (STREQ(migrateFrom, "stdio")) {
            if (qemuCmdFlags & QEMUD_CMD_FLAG_MIGRATE_QEMU_EXEC) {
                migrateFrom = "exec:cat";
            } else if (!(qemuCmdFlags & QEMUD_CMD_FLAG_MIGRATE_KVM_STDIO)) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_NO_SUPPORT,
                                 "%s", _("STDIO migration is not supported with this QEMU binary"));
                return -1;
            }
        } else if (STRPREFIX(migrateFrom, "exec")) {
            if (!(qemuCmdFlags & QEMUD_CMD_FLAG_MIGRATE_QEMU_EXEC)) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_NO_SUPPORT,
                                 "%s", _("STDIO migration is not supported with this QEMU binary"));
                return -1;
            }
        }
    }

1646
    emulator = def->emulator;
1647

1648
    /* Need to explicitly disable KQEMU if
1649 1650
     * 1. Guest domain is 'qemu'
     * 2. The qemu binary has the -no-kqemu flag
1651
     */
1652
    if ((qemuCmdFlags & QEMUD_CMD_FLAG_KQEMU) &&
1653
        def->virtType == VIR_DOMAIN_VIRT_QEMU)
1654 1655
        disableKQEMU = 1;

1656
    /* Need to explicitly disable KVM if
1657 1658
     * 1. Guest domain is 'qemu'
     * 2. The qemu binary has the -no-kvm flag
1659 1660
     */
    if ((qemuCmdFlags & QEMUD_CMD_FLAG_KVM) &&
1661
        def->virtType == VIR_DOMAIN_VIRT_QEMU)
1662 1663
        disableKVM = 1;

1664 1665 1666 1667 1668 1669 1670 1671 1672
    /* Should explicitly enable KVM if
     * 1. Guest domain is 'kvm'
     * 2. The qemu binary has the -enable-kvm flag
     * NOTE: user must be responsible for loading the kvm modules
     */
    if ((qemuCmdFlags & QEMUD_CMD_FLAG_ENABLE_KVM) &&
        def->virtType == VIR_DOMAIN_VIRT_KVM)
        enableKVM = 1;

1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684
    /*
     * Need to force a 32-bit guest CPU type if
     *
     *  1. guest OS is i686
     *  2. host OS is x86_64
     *  3. emulator is qemu-kvm or kvm
     *
     * Or
     *
     *  1. guest OS is i686
     *  2. emulator is qemu-system-x86_64
     */
1685
    if (STREQ(def->os.arch, "i686") &&
1686 1687 1688 1689 1690
        ((STREQ(ut.machine, "x86_64") &&
          strstr(emulator, "kvm")) ||
         strstr(emulator, "x86_64")))
        cpu = "qemu32";

1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711
#define ADD_ARG_SPACE                                                   \
    do { \
        if (qargc == qarga) {                                           \
            qarga += 10;                                                \
            if (VIR_REALLOC_N(qargv, qarga) < 0)                        \
                goto no_memory;                                         \
        }                                                               \
    } while (0)

#define ADD_ARG(thisarg)                                                \
    do {                                                                \
        ADD_ARG_SPACE;                                                  \
        qargv[qargc++] = thisarg;                                       \
    } while (0)

#define ADD_ARG_LIT(thisarg)                                            \
    do {                                                                \
        ADD_ARG_SPACE;                                                  \
        if ((qargv[qargc++] = strdup(thisarg)) == NULL)                 \
            goto no_memory;                                             \
    } while (0)
D
Daniel P. Berrange 已提交
1712

1713 1714 1715 1716
#define ADD_USBDISK(thisarg)                                            \
    do {                                                                \
        ADD_ARG_LIT("-usbdevice");                                      \
        ADD_ARG_SPACE;                                                  \
1717 1718
        if ((virAsprintf((char **)&(qargv[qargc++]),                    \
                         "disk:%s", thisarg)) == -1) {                  \
1719 1720 1721 1722
            goto no_memory;                                             \
        }                                                               \
    } while (0)

1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744
#define ADD_ENV_SPACE                                                   \
    do {                                                                \
        if (qenvc == qenva) {                                           \
            qenva += 10;                                                \
            if (VIR_REALLOC_N(qenv, qenva) < 0)                         \
                goto no_memory;                                         \
        }                                                               \
    } while (0)

#define ADD_ENV(thisarg)                                                \
    do {                                                                \
        ADD_ENV_SPACE;                                                  \
        qenv[qenvc++] = thisarg;                                        \
    } while (0)

#define ADD_ENV_LIT(thisarg)                                            \
    do {                                                                \
        ADD_ENV_SPACE;                                                  \
        if ((qenv[qenvc++] = strdup(thisarg)) == NULL)                  \
            goto no_memory;                                             \
    } while (0)

1745
#define ADD_ENV_PAIR(envname, val)                                      \
1746 1747 1748
    do {                                                                \
        char *envval;                                                   \
        ADD_ENV_SPACE;                                                  \
1749 1750 1751 1752 1753 1754 1755 1756
        if (virAsprintf(&envval, "%s=%s", envname, val) < 0)            \
            goto no_memory;                                             \
        qenv[qenvc++] = envval;                                         \
    } while (0)

#define ADD_ENV_COPY(envname)                                           \
    do {                                                                \
        char *val = getenv(envname);                                    \
1757
        if (val != NULL) {                                              \
1758
            ADD_ENV_PAIR(envname, val);                                 \
1759 1760 1761
        }                                                               \
    } while (0)

1762 1763 1764 1765
    /* Set '-m MB' based on maxmem, because the lower 'memory' limit
     * is set post-startup using the balloon driver. If balloon driver
     * is not supported, then they're out of luck anyway
     */
1766 1767 1768
    snprintf(memory, sizeof(memory), "%lu", def->maxmem/1024);
    snprintf(vcpus, sizeof(vcpus), "%lu", def->vcpus);
    snprintf(domid, sizeof(domid), "%d", def->id);
D
Daniel P. Berrange 已提交
1769

1770 1771 1772 1773 1774 1775 1776 1777 1778 1779
    ADD_ENV_LIT("LC_ALL=C");

    ADD_ENV_COPY("LD_PRELOAD");
    ADD_ENV_COPY("LD_LIBRARY_PATH");
    ADD_ENV_COPY("PATH");
    ADD_ENV_COPY("HOME");
    ADD_ENV_COPY("USER");
    ADD_ENV_COPY("LOGNAME");
    ADD_ENV_COPY("TMPDIR");

1780
    ADD_ARG_LIT(emulator);
1781
    ADD_ARG_LIT("-S");
1782 1783 1784 1785 1786

    /* This should *never* be NULL, since we always provide
     * a machine in the capabilities data for QEMU. So this
     * check is just here as a safety in case the unexpected
     * happens */
1787
    if (def->os.machine) {
1788
        ADD_ARG_LIT("-M");
1789
        ADD_ARG_LIT(def->os.machine);
1790
    }
1791 1792 1793 1794
    if (cpu) {
        ADD_ARG_LIT("-cpu");
        ADD_ARG_LIT(cpu);
    }
1795

1796 1797
    if (disableKQEMU)
        ADD_ARG_LIT("-no-kqemu");
1798 1799
    if (disableKVM)
        ADD_ARG_LIT("-no-kvm");
1800 1801
    if (enableKVM)
        ADD_ARG_LIT("-enable-kvm");
1802 1803
    ADD_ARG_LIT("-m");
    ADD_ARG_LIT(memory);
1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823
    if (def->hugepage_backed) {
        if (!driver->hugetlbfs_mount) {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             "%s", _("hugetlbfs filesystem is not mounted"));
            goto error;
        }
        if (!driver->hugepage_path) {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             "%s", _("hugepages are disabled by administrator config"));
            goto error;
        }
        if (!(qemuCmdFlags & QEMUD_CMD_FLAG_MEM_PATH)) {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             _("hugepage backing not supported by '%s'"),
                             def->emulator);
            goto error;
        }
        ADD_ARG_LIT("-mem-path");
        ADD_ARG_LIT(driver->hugepage_path);
    }
1824 1825
    ADD_ARG_LIT("-smp");
    ADD_ARG_LIT(vcpus);
D
Daniel P. Berrange 已提交
1826

1827
    if (qemuCmdFlags & QEMUD_CMD_FLAG_NAME) {
1828
        ADD_ARG_LIT("-name");
1829
        ADD_ARG_LIT(def->name);
1830
    }
1831 1832 1833 1834
    if (qemuCmdFlags & QEMUD_CMD_FLAG_UUID) {
        ADD_ARG_LIT("-uuid");
        ADD_ARG_LIT(uuid);
    }
1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850
    if (def->virtType == VIR_DOMAIN_VIRT_XEN ||
        STREQ(def->os.type, "xen") ||
        STREQ(def->os.type, "linux")) {
        if (qemuCmdFlags & QEMUD_CMD_FLAG_DOMID) {
            ADD_ARG_LIT("-domid");
            ADD_ARG_LIT(domid);
        } else if (qemuCmdFlags & QEMUD_CMD_FLAG_XEN_DOMID) {
            ADD_ARG_LIT("-xen-attach");
            ADD_ARG_LIT("-xen-domid");
            ADD_ARG_LIT(domid);
        } else {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             _("qemu emulator '%s' does not support xen"),
                             def->emulator);
            goto error;
        }
1851 1852
    }

1853 1854 1855 1856 1857 1858 1859
    /*
     * NB, -nographic *MUST* come before any serial, or monitor
     * or parallel port flags due to QEMU craziness, where it
     * decides to change the serial port & monitor to be on stdout
     * if you ask for nographic. So we have to make sure we override
     * these defaults ourselves...
     */
1860
    if (!def->graphics)
1861
        ADD_ARG_LIT("-nographic");
1862

1863
    if (monitor_chr) {
1864
        virBuffer buf = VIR_BUFFER_INITIALIZER;
1865

1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888
        /* Use -chardev if it's available */
        if (qemuCmdFlags & QEMUD_CMD_FLAG_CHARDEV) {
            qemudBuildCommandLineChrDevChardevStr(monitor_chr, "monitor", &buf);
            if (virBufferError(&buf)) {
                virBufferFreeAndReset(&buf);
                goto no_memory;
            }

            ADD_ARG_LIT("-chardev");
            ADD_ARG(virBufferContentAndReset(&buf));

            if (monitor_json)
                virBufferAddLit(&buf, "control,");

            virBufferAddLit(&buf, "chardev:monitor");
        }

        else {
            if (monitor_json)
                virBufferAddLit(&buf, "control,");

            qemudBuildCommandLineChrDevStr(monitor_chr, &buf);
        }
D
Daniel P. Berrange 已提交
1889

1890 1891 1892 1893
        if (virBufferError(&buf)) {
            virBufferFreeAndReset(&buf);
            goto no_memory;
        }
1894 1895

        ADD_ARG_LIT("-monitor");
1896
        ADD_ARG_LIT(virBufferContentAndReset(&buf));
1897
    }
D
Daniel P. Berrange 已提交
1898

1899
    if (def->localtime)
1900
        ADD_ARG_LIT("-localtime");
1901

1902
    if ((qemuCmdFlags & QEMUD_CMD_FLAG_NO_REBOOT) &&
1903
        def->onReboot != VIR_DOMAIN_LIFECYCLE_RESTART)
1904
        ADD_ARG_LIT("-no-reboot");
D
Daniel P. Berrange 已提交
1905

1906
    if (!(def->features & (1 << VIR_DOMAIN_FEATURE_ACPI)))
1907
        ADD_ARG_LIT("-no-acpi");
D
Daniel P. Berrange 已提交
1908

1909 1910 1911
    if (!def->os.bootloader) {
        for (i = 0 ; i < def->os.nBootDevs ; i++) {
            switch (def->os.bootDevs[i]) {
1912
            case VIR_DOMAIN_BOOT_CDROM:
D
Daniel P. Berrange 已提交
1913 1914
                boot[i] = 'd';
                break;
1915
            case VIR_DOMAIN_BOOT_FLOPPY:
D
Daniel P. Berrange 已提交
1916 1917
                boot[i] = 'a';
                break;
1918
            case VIR_DOMAIN_BOOT_DISK:
D
Daniel P. Berrange 已提交
1919 1920
                boot[i] = 'c';
                break;
1921
            case VIR_DOMAIN_BOOT_NET:
D
Daniel P. Berrange 已提交
1922 1923 1924 1925 1926 1927 1928
                boot[i] = 'n';
                break;
            default:
                boot[i] = 'c';
                break;
            }
        }
1929 1930 1931 1932 1933
        if (def->os.nBootDevs) {
            boot[def->os.nBootDevs] = '\0';
            ADD_ARG_LIT("-boot");
            ADD_ARG_LIT(boot);
        }
D
Daniel P. Berrange 已提交
1934

1935
        if (def->os.kernel) {
1936
            ADD_ARG_LIT("-kernel");
1937
            ADD_ARG_LIT(def->os.kernel);
D
Daniel P. Berrange 已提交
1938
        }
1939
        if (def->os.initrd) {
1940
            ADD_ARG_LIT("-initrd");
1941
            ADD_ARG_LIT(def->os.initrd);
D
Daniel P. Berrange 已提交
1942
        }
1943
        if (def->os.cmdline) {
1944
            ADD_ARG_LIT("-append");
1945
            ADD_ARG_LIT(def->os.cmdline);
D
Daniel P. Berrange 已提交
1946 1947
        }
    } else {
1948
        ADD_ARG_LIT("-bootloader");
1949
        ADD_ARG_LIT(def->os.bootloader);
D
Daniel P. Berrange 已提交
1950 1951
    }

1952 1953
    for (i = 0 ; i < def->ndisks ; i++) {
        virDomainDiskDefPtr disk = def->disks[i];
1954 1955 1956 1957 1958 1959 1960 1961 1962 1963

        if (disk->driverName != NULL &&
            !STREQ(disk->driverName, "qemu")) {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             _("unsupported driver name '%s' for disk '%s'"),
                             disk->driverName, disk->src);
            goto error;
        }
    }

1964
    /* If QEMU supports -drive param instead of old -hda, -hdb, -cdrom .. */
1965
    if (qemuCmdFlags & QEMUD_CMD_FLAG_DRIVE) {
1966 1967 1968
        int bootCD = 0, bootFloppy = 0, bootDisk = 0;

        /* If QEMU supports boot=on for -drive param... */
1969
        if (qemuCmdFlags & QEMUD_CMD_FLAG_DRIVE_BOOT) {
1970 1971
            for (i = 0 ; i < def->os.nBootDevs ; i++) {
                switch (def->os.bootDevs[i]) {
1972
                case VIR_DOMAIN_BOOT_CDROM:
1973 1974
                    bootCD = 1;
                    break;
1975
                case VIR_DOMAIN_BOOT_FLOPPY:
1976 1977
                    bootFloppy = 1;
                    break;
1978
                case VIR_DOMAIN_BOOT_DISK:
1979 1980 1981
                    bootDisk = 1;
                    break;
                }
1982
            }
1983
        }
D
Daniel P. Berrange 已提交
1984

1985
        for (i = 0 ; i < def->ndisks ; i++) {
1986 1987
            virBuffer opt = VIR_BUFFER_INITIALIZER;
            char *optstr;
1988
            int bootable = 0;
1989
            virDomainDiskDefPtr disk = def->disks[i];
1990
            int idx = virDiskNameToIndex(disk->dst);
1991
            const char *bus = virDomainDiskQEMUBusTypeToString(disk->bus);
D
Daniel P. Berrange 已提交
1992

1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003
            if (disk->bus == VIR_DOMAIN_DISK_BUS_USB) {
                if (disk->device == VIR_DOMAIN_DISK_DEVICE_DISK) {
                    ADD_USBDISK(disk->src);
                } else {
                    qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                                     _("unsupported usb disk type for '%s'"), disk->src);
                    goto error;
                }
                continue;
            }

D
Daniel P. Berrange 已提交
2004 2005
            ADD_ARG_SPACE;

2006 2007 2008 2009 2010 2011 2012
            if (idx < 0) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                                 _("unsupported disk type '%s'"), disk->dst);
                goto error;
            }

            switch (disk->device) {
2013
            case VIR_DOMAIN_DISK_DEVICE_CDROM:
2014 2015 2016
                bootable = bootCD;
                bootCD = 0;
                break;
2017
            case VIR_DOMAIN_DISK_DEVICE_FLOPPY:
2018 2019 2020
                bootable = bootFloppy;
                bootFloppy = 0;
                break;
2021
            case VIR_DOMAIN_DISK_DEVICE_DISK:
2022 2023 2024 2025 2026
                bootable = bootDisk;
                bootDisk = 0;
                break;
            }

2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050
            if (disk->src) {
                if (disk->type == VIR_DOMAIN_DISK_TYPE_DIR) {
                    /* QEMU only supports magic FAT format for now */
                    if (disk->driverType &&
                        STRNEQ(disk->driverType, "fat")) {
                        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                                         _("unsupported disk driver type for '%s'"),
                                         disk->driverType);
                        goto error;
                    }
                    if (!disk->readonly) {
                        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s",
                                         _("cannot create virtual FAT disks in read-write mode"));
                        goto error;
                    }
                    if (disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY)
                        virBufferVSprintf(&opt, "file=fat:floppy:%s,", disk->src);
                    else
                        virBufferVSprintf(&opt, "file=fat:%s,", disk->src);
                } else {
                    virBufferVSprintf(&opt, "file=%s,", disk->src);
                }
            }
            virBufferVSprintf(&opt, "if=%s", bus);
2051 2052 2053 2054 2055 2056
            if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
                virBufferAddLit(&opt, ",media=cdrom");
            virBufferVSprintf(&opt, ",index=%d", idx);
            if (bootable &&
                disk->device == VIR_DOMAIN_DISK_DEVICE_DISK)
                virBufferAddLit(&opt, ",boot=on");
2057
            if (disk->driverType &&
2058
                disk->type != VIR_DOMAIN_DISK_TYPE_DIR &&
2059
                qemuCmdFlags & QEMUD_CMD_FLAG_DRIVE_FORMAT)
2060
                virBufferVSprintf(&opt, ",format=%s", disk->driverType);
2061 2062 2063 2064 2065 2066
            if (disk->serial &&
                (qemuCmdFlags & QEMUD_CMD_FLAG_DRIVE_SERIAL)) {
                if (qemuSafeSerialParamValue(conn, disk->serial) < 0)
                    goto error;
                virBufferVSprintf(&opt, ",serial=%s", disk->serial);
            }
2067

2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078
            if (disk->cachemode) {
                const char *mode =
                    (qemuCmdFlags & QEMUD_CMD_FLAG_DRIVE_CACHE_V2) ?
                    qemuDiskCacheV2TypeToString(disk->cachemode) :
                    qemuDiskCacheV1TypeToString(disk->cachemode);

                virBufferVSprintf(&opt, ",cache=%s", mode);
            } else if (disk->shared && !disk->readonly) {
                virBufferAddLit(&opt, ",cache=off");
            }

2079
            if (virBufferError(&opt)) {
2080 2081
                virBufferFreeAndReset(&opt);
                goto no_memory;
2082 2083 2084
            }

            optstr = virBufferContentAndReset(&opt);
2085

D
Daniel P. Berrange 已提交
2086 2087 2088 2089
            if ((qargv[qargc++] = strdup("-drive")) == NULL) {
                VIR_FREE(optstr);
                goto no_memory;
            }
2090
            ADD_ARG(optstr);
2091 2092
        }
    } else {
2093
        for (i = 0 ; i < def->ndisks ; i++) {
2094 2095
            char dev[NAME_MAX];
            char file[PATH_MAX];
2096
            virDomainDiskDefPtr disk = def->disks[i];
2097

2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108
            if (disk->bus == VIR_DOMAIN_DISK_BUS_USB) {
                if (disk->device == VIR_DOMAIN_DISK_DEVICE_DISK) {
                    ADD_USBDISK(disk->src);
                } else {
                    qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                                     _("unsupported usb disk type for '%s'"), disk->src);
                    goto error;
                }
                continue;
            }

2109
            if (STREQ(disk->dst, "hdc") &&
2110 2111
                disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM) {
                if (disk->src) {
2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126
                    snprintf(dev, NAME_MAX, "-%s", "cdrom");
                } else {
                    continue;
                }
            } else {
                if (STRPREFIX(disk->dst, "hd") ||
                    STRPREFIX(disk->dst, "fd")) {
                    snprintf(dev, NAME_MAX, "-%s", disk->dst);
                } else {
                    qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                                     _("unsupported disk type '%s'"), disk->dst);
                    goto error;
                }
            }

2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147
            if (disk->type == VIR_DOMAIN_DISK_TYPE_DIR) {
                /* QEMU only supports magic FAT format for now */
                if (disk->driverType &&
                    STRNEQ(disk->driverType, "fat")) {
                    qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                                     _("unsupported disk driver type for '%s'"),
                                     disk->driverType);
                    goto error;
                }
                if (!disk->readonly) {
                    qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s",
                                     _("cannot create virtual FAT disks in read-write mode"));
                    goto error;
                }
                if (disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY)
                    snprintf(file, PATH_MAX, "fat:floppy:%s", disk->src);
                else
                    snprintf(file, PATH_MAX, "fat:%s", disk->src);
            } else {
                snprintf(file, PATH_MAX, "%s", disk->src);
            }
2148

2149 2150
            ADD_ARG_LIT(dev);
            ADD_ARG_LIT(file);
2151
        }
D
Daniel P. Berrange 已提交
2152 2153
    }

2154
    if (!def->nnets) {
2155 2156
        ADD_ARG_LIT("-net");
        ADD_ARG_LIT("none");
D
Daniel P. Berrange 已提交
2157
    } else {
2158 2159
        for (i = 0 ; i < def->nnets ; i++) {
            virDomainNetDefPtr net = def->nets[i];
2160
            char *nic, *host;
2161
            char *tapfd_name = NULL;
2162

2163 2164
            net->vlan = i;

D
Daniel P. Berrange 已提交
2165
            ADD_ARG_SPACE;
2166 2167 2168 2169
            if ((qemuCmdFlags & QEMUD_CMD_FLAG_NET_NAME) &&
                qemuAssignNetNames(def, net) < 0)
                goto no_memory;

2170
            if (qemuBuildNicStr(conn, net, "nic,", net->vlan, &nic) < 0)
2171
                goto error;
D
Daniel P. Berrange 已提交
2172

D
Daniel P. Berrange 已提交
2173 2174 2175 2176
            if ((qargv[qargc++] = strdup("-net")) == NULL) {
                VIR_FREE(nic);
                goto no_memory;
            }
2177
            ADD_ARG(nic);
2178

D
Daniel P. Berrange 已提交
2179 2180

            ADD_ARG_SPACE;
2181 2182
            if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK ||
                net->type == VIR_DOMAIN_NET_TYPE_BRIDGE) {
2183
                int tapfd = qemudNetworkIfaceConnect(conn, driver, net, qemuCmdFlags);
2184 2185
                if (tapfd < 0)
                    goto error;
2186

2187 2188 2189
                if (VIR_REALLOC_N(*tapfds, (*ntapfds)+1) < 0) {
                    close(tapfd);
                    goto no_memory;
2190 2191
                }

2192
                (*tapfds)[(*ntapfds)++] = tapfd;
2193 2194 2195

                if (virAsprintf(&tapfd_name, "%d", tapfd) < 0)
                    goto no_memory;
2196
            }
D
Daniel P. Berrange 已提交
2197

2198
            if (qemuBuildHostNetStr(conn, net, ',',
2199 2200
                                    net->vlan, tapfd_name, &host) < 0) {
                VIR_FREE(tapfd_name);
2201
                goto error;
2202
            }
2203

D
Daniel P. Berrange 已提交
2204 2205 2206 2207
            if ((qargv[qargc++] = strdup("-net")) == NULL) {
                VIR_FREE(host);
                goto no_memory;
            }
2208
            ADD_ARG(host);
2209 2210

            VIR_FREE(tapfd_name);
D
Daniel P. Berrange 已提交
2211 2212 2213
        }
    }

2214
    if (!def->nserials) {
2215 2216
        ADD_ARG_LIT("-serial");
        ADD_ARG_LIT("none");
2217
    } else {
2218
        for (i = 0 ; i < def->nserials ; i++) {
2219
            virBuffer buf = VIR_BUFFER_INITIALIZER;
2220
            virDomainChrDefPtr serial = def->serials[i];
2221

2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245
            /* Use -chardev if it's available */
            if (qemuCmdFlags & QEMUD_CMD_FLAG_CHARDEV) {
                char id[16];

                if (snprintf(id, sizeof(id), "serial%i", i) > sizeof(id))
                    goto error;

                qemudBuildCommandLineChrDevChardevStr(serial, id, &buf);
                if (virBufferError(&buf)) {
                    virBufferFreeAndReset(&buf);
                    goto no_memory;
                }

                ADD_ARG_LIT("-chardev");
                ADD_ARG(virBufferContentAndReset(&buf));

                virBufferVSprintf(&buf, "chardev:%s", id);
                if (virBufferError(&buf)) {
                    virBufferFreeAndReset(&buf);
                    goto no_memory;
                }

                ADD_ARG_LIT("-serial");
                ADD_ARG(virBufferContentAndReset(&buf));
2246
            }
2247

2248 2249 2250 2251 2252 2253 2254 2255 2256 2257
            else {
                qemudBuildCommandLineChrDevStr(serial, &buf);
                if (virBufferError(&buf)) {
                    virBufferFreeAndReset(&buf);
                    goto no_memory;
                }

                ADD_ARG_LIT("-serial");
                ADD_ARG(virBufferContentAndReset(&buf));
            }
2258 2259 2260
        }
    }

2261
    if (!def->nparallels) {
2262 2263
        ADD_ARG_LIT("-parallel");
        ADD_ARG_LIT("none");
2264
    } else {
2265
        for (i = 0 ; i < def->nparallels ; i++) {
2266
            virBuffer buf = VIR_BUFFER_INITIALIZER;
2267
            virDomainChrDefPtr parallel = def->parallels[i];
2268

2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292
            /* Use -chardev if it's available */
            if (qemuCmdFlags & QEMUD_CMD_FLAG_CHARDEV) {
                char id[16];

                if (snprintf(id, sizeof(id), "parallel%i", i) > sizeof(id))
                    goto error;

                qemudBuildCommandLineChrDevChardevStr(parallel, id, &buf);
                if (virBufferError(&buf)) {
                    virBufferFreeAndReset(&buf);
                    goto no_memory;
                }

                ADD_ARG_LIT("-chardev");
                ADD_ARG(virBufferContentAndReset(&buf));

                virBufferVSprintf(&buf, "chardev:%s", id);
                if (virBufferError(&buf)) {
                    virBufferFreeAndReset(&buf);
                    goto no_memory;
                }

                ADD_ARG_LIT("-parallel");
                ADD_ARG(virBufferContentAndReset(&buf));
2293
            }
2294

2295 2296 2297 2298 2299 2300 2301 2302 2303 2304
            else {
                qemudBuildCommandLineChrDevStr(parallel, &buf);
                if (virBufferError(&buf)) {
                    virBufferFreeAndReset(&buf);
                    goto no_memory;
                }

                ADD_ARG_LIT("-parallel");
                ADD_ARG(virBufferContentAndReset(&buf));
            }
2305 2306 2307
        }
    }

2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325
    for (i = 0 ; i < def->nchannels ; i++) {
        virBuffer buf = VIR_BUFFER_INITIALIZER;
        char id[16];

        virDomainChrDefPtr channel = def->channels[i];

        if (snprintf(id, sizeof(id), "channel%i", i) > sizeof(id))
            goto error;

        switch(channel->targetType) {
        case VIR_DOMAIN_CHR_TARGET_TYPE_GUESTFWD:
            if (!(qemuCmdFlags & QEMUD_CMD_FLAG_CHARDEV)) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_NO_SUPPORT,
                     "%s", _("guestfwd requires QEMU to support -chardev"));
                goto error;
            }

            qemudBuildCommandLineChrDevChardevStr(channel, id, &buf);
2326 2327 2328 2329
            if (virBufferError(&buf)) {
                virBufferFreeAndReset(&buf);
                goto no_memory;
            }
2330 2331

            ADD_ARG_LIT("-chardev");
2332
            ADD_ARG(virBufferContentAndReset(&buf));
2333

M
Matthew Booth 已提交
2334 2335 2336 2337 2338 2339 2340 2341
            const char *addr = virSocketFormatAddr(channel->target.addr);
            int port = virSocketGetPort(channel->target.addr);

            virBufferVSprintf(&buf, "user,guestfwd=tcp:%s:%i-chardev:%s",
                              addr, port, id);

            VIR_FREE(addr);

2342 2343 2344 2345
            if (virBufferError(&buf)) {
                virBufferFreeAndReset(&buf);
                goto no_memory;
            }
2346 2347

            ADD_ARG_LIT("-net");
2348
            ADD_ARG(virBufferContentAndReset(&buf));
2349 2350 2351
        }
    }

2352
    ADD_ARG_LIT("-usb");
2353 2354
    for (i = 0 ; i < def->ninputs ; i++) {
        virDomainInputDefPtr input = def->inputs[i];
2355

2356
        if (input->bus == VIR_DOMAIN_INPUT_BUS_USB) {
2357
            ADD_ARG_LIT("-usbdevice");
2358
            ADD_ARG_LIT(input->type == VIR_DOMAIN_INPUT_TYPE_MOUSE ? "mouse" : "tablet");
2359 2360 2361
        }
    }

2362 2363
    if ((def->ngraphics == 1) &&
        def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC) {
2364 2365
        virBuffer opt = VIR_BUFFER_INITIALIZER;
        char *optstr;
D
Daniel P. Berrange 已提交
2366

2367
        if (qemuCmdFlags & QEMUD_CMD_FLAG_VNC_COLON) {
2368 2369
            if (def->graphics[0]->data.vnc.listenAddr)
                virBufferAdd(&opt, def->graphics[0]->data.vnc.listenAddr, -1);
2370 2371 2372 2373
            else if (driver->vncListen)
                virBufferAdd(&opt, driver->vncListen, -1);

            virBufferVSprintf(&opt, ":%d",
2374
                              def->graphics[0]->data.vnc.port - 5900);
2375

2376
            if (def->graphics[0]->data.vnc.passwd ||
2377 2378 2379
                driver->vncPassword)
                virBufferAddLit(&opt, ",password");

D
Daniel P. Berrange 已提交
2380
            if (driver->vncTLS) {
2381
                virBufferAddLit(&opt, ",tls");
D
Daniel P. Berrange 已提交
2382
                if (driver->vncTLSx509verify) {
2383 2384
                    virBufferVSprintf(&opt, ",x509verify=%s",
                                      driver->vncTLSx509certdir);
D
Daniel P. Berrange 已提交
2385
                } else {
2386 2387
                    virBufferVSprintf(&opt, ",x509=%s",
                                      driver->vncTLSx509certdir);
D
Daniel P. Berrange 已提交
2388 2389
                }
            }
2390 2391 2392 2393 2394 2395 2396 2397 2398

            if (driver->vncSASL) {
                virBufferAddLit(&opt, ",sasl");

                if (driver->vncSASLdir)
                    ADD_ENV_PAIR("SASL_CONF_DIR", driver->vncSASLdir);

                /* TODO: Support ACLs later */
            }
D
Daniel P. Berrange 已提交
2399
        } else {
2400
            virBufferVSprintf(&opt, "%d",
2401
                              def->graphics[0]->data.vnc.port - 5900);
D
Daniel P. Berrange 已提交
2402
        }
2403 2404
        if (virBufferError(&opt)) {
            virBufferFreeAndReset(&opt);
2405
            goto no_memory;
2406
        }
2407 2408

        optstr = virBufferContentAndReset(&opt);
2409

2410
        ADD_ARG_LIT("-vnc");
2411
        ADD_ARG(optstr);
2412
        if (def->graphics[0]->data.vnc.keymap) {
2413
            ADD_ARG_LIT("-k");
2414
            ADD_ARG_LIT(def->graphics[0]->data.vnc.keymap);
2415
        }
2416 2417 2418 2419 2420 2421 2422

        /* QEMU implements a VNC extension for providing audio, so we
         * set the audio backend to none, to prevent it opening the
         * host OS audio devices since that causes security issues
         * and is non-sensical when using VNC.
         */
        ADD_ENV_LIT("QEMU_AUDIO_DRV=none");
2423 2424
    } else if ((def->ngraphics == 1) &&
               def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_SDL) {
2425 2426 2427
        char *xauth = NULL;
        char *display = NULL;

2428
        if (def->graphics[0]->data.sdl.xauth &&
2429
            virAsprintf(&xauth, "XAUTHORITY=%s",
2430
                        def->graphics[0]->data.sdl.xauth) < 0)
2431
            goto no_memory;
2432
        if (def->graphics[0]->data.sdl.display &&
2433
            virAsprintf(&display, "DISPLAY=%s",
2434
                        def->graphics[0]->data.sdl.display) < 0) {
2435 2436 2437 2438 2439 2440 2441 2442
            VIR_FREE(xauth);
            goto no_memory;
        }

        if (xauth)
            ADD_ENV(xauth);
        if (display)
            ADD_ENV(display);
2443
        if (def->graphics[0]->data.sdl.fullscreen)
2444
            ADD_ARG_LIT("-full-screen");
2445 2446 2447 2448 2449 2450 2451

        /* If using SDL for video, then we should just let it
         * use QEMU's host audio drivers, possibly SDL too
         * User can set these two before starting libvirtd
         */
        ADD_ENV_COPY("QEMU_AUDIO_DRV");
        ADD_ENV_COPY("SDL_AUDIODRIVER");
D
Daniel P. Berrange 已提交
2452 2453
    }

2454 2455 2456
    if (def->nvideos) {
        if (def->nvideos > 1) {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
A
Aron Griffis 已提交
2457
                             "%s", _("only one video card is currently supported"));
2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500
            goto error;
        }

        if (qemuCmdFlags & QEMUD_CMD_FLAG_VGA) {
            if (def->videos[0]->type == VIR_DOMAIN_VIDEO_TYPE_XEN) {
                /* nothing - vga has no effect on Xen pvfb */
            } else {
                const char *vgastr = qemuVideoTypeToString(def->videos[0]->type);
                if (!vgastr) {
                    qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                                     _("video type %s is not supported with QEMU"),
                                     virDomainVideoTypeToString(def->videos[0]->type));
                    goto error;
                }

                ADD_ARG_LIT("-vga");
                ADD_ARG_LIT(vgastr);
            }
        } else {

            switch (def->videos[0]->type) {
            case VIR_DOMAIN_VIDEO_TYPE_VGA:
                ADD_ARG_LIT("-std-vga");
                break;

            case VIR_DOMAIN_VIDEO_TYPE_VMVGA:
                ADD_ARG_LIT("-vmwarevga");
                break;

            case VIR_DOMAIN_VIDEO_TYPE_XEN:
            case VIR_DOMAIN_VIDEO_TYPE_CIRRUS:
                /* No special args - this is the default */
                break;

            default:
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                                 _("video type %s is not supported with QEMU"),
                                 virDomainVideoTypeToString(def->videos[0]->type));
                goto error;
            }
        }
    }

D
Daniel Veillard 已提交
2501
    /* Add sound hardware */
2502
    if (def->nsounds) {
D
Daniel Veillard 已提交
2503
        int size = 100;
2504 2505
        char *modstr;
        if (VIR_ALLOC_N(modstr, size+1) < 0)
D
Daniel Veillard 已提交
2506 2507
            goto no_memory;

2508 2509
        for (i = 0 ; i < def->nsounds && size > 0 ; i++) {
            virDomainSoundDefPtr sound = def->sounds[i];
2510
            const char *model = virDomainSoundModelTypeToString(sound->model);
D
Daniel Veillard 已提交
2511
            if (!model) {
2512
                VIR_FREE(modstr);
2513 2514 2515
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                                 "%s", _("invalid sound model"));
                goto error;
D
Daniel Veillard 已提交
2516 2517 2518
            }
            strncat(modstr, model, size);
            size -= strlen(model);
2519
            if (i < (def->nsounds - 1))
D
Daniel Veillard 已提交
2520 2521
               strncat(modstr, ",", size--);
        }
2522 2523
        ADD_ARG_LIT("-soundhw");
        ADD_ARG(modstr);
D
Daniel Veillard 已提交
2524 2525
    }

R
Richard Jones 已提交
2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547
    /* Add watchdog hardware */
    if (def->watchdog) {
        virDomainWatchdogDefPtr watchdog = def->watchdog;
        const char *model = virDomainWatchdogModelTypeToString(watchdog->model);
        if (!model) {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             "%s", _("invalid watchdog model"));
            goto error;
        }
        ADD_ARG_LIT("-watchdog");
        ADD_ARG_LIT(model);

        const char *action = virDomainWatchdogActionTypeToString(watchdog->action);
        if (!action) {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             "%s", _("invalid watchdog action"));
            goto error;
        }
        ADD_ARG_LIT("-watchdog-action");
        ADD_ARG_LIT(action);
    }

2548
    /* Add host passthrough hardware */
2549
    for (i = 0 ; i < def->nhostdevs ; i++) {
2550 2551
        int ret;
        char* usbdev;
2552
        char* pcidev;
2553
        virDomainHostdevDefPtr hostdev = def->hostdevs[i];
2554

2555
        /* USB */
2556 2557
        if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
            hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB) {
2558
            if(hostdev->source.subsys.u.usb.vendor) {
2559
                    ret = virAsprintf(&usbdev, "host:%.4x:%.4x",
2560 2561
                               hostdev->source.subsys.u.usb.vendor,
                               hostdev->source.subsys.u.usb.product);
2562 2563

            } else {
2564
                    ret = virAsprintf(&usbdev, "host:%.3d.%.3d",
2565 2566
                               hostdev->source.subsys.u.usb.bus,
                               hostdev->source.subsys.u.usb.device);
2567
            }
2568
            if (ret < 0)
2569
                goto error;
2570

2571 2572 2573 2574
            ADD_ARG_LIT("-usbdevice");
            ADD_ARG_LIT(usbdev);
            VIR_FREE(usbdev);
        }
2575 2576 2577 2578

        /* PCI */
        if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
            hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) {
2579 2580 2581 2582 2583
            if (!(qemuCmdFlags & QEMUD_CMD_FLAG_PCIDEVICE)) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_NO_SUPPORT, "%s",
                                 _("PCI device assignment is not supported by this version of qemu"));
                goto error;
            }
2584 2585 2586 2587 2588 2589
            ret = virAsprintf(&pcidev, "host=%.2x:%.2x.%.1x",
                           hostdev->source.subsys.u.pci.bus,
                           hostdev->source.subsys.u.pci.slot,
                           hostdev->source.subsys.u.pci.function);
            if (ret < 0) {
                pcidev = NULL;
2590
                goto no_memory;
2591 2592 2593 2594 2595
            }
            ADD_ARG_LIT("-pcidevice");
            ADD_ARG_LIT(pcidev);
            VIR_FREE(pcidev);
        }
2596 2597
    }

2598
    if (migrateFrom) {
2599
        ADD_ARG_LIT("-incoming");
2600
        ADD_ARG_LIT(migrateFrom);
2601 2602
    }

2603
    ADD_ARG(NULL);
2604
    ADD_ENV(NULL);
D
Daniel P. Berrange 已提交
2605

2606
    *retargv = qargv;
2607
    *retenv = qenv;
D
Daniel P. Berrange 已提交
2608 2609 2610
    return 0;

 no_memory:
2611
    virReportOOMError(conn);
2612
 error:
2613 2614
    if (tapfds &&
        *tapfds) {
2615
        for (i = 0; i < *ntapfds; i++)
2616 2617 2618
            close((*tapfds)[i]);
        VIR_FREE(*tapfds);
        *ntapfds = 0;
2619
    }
2620 2621
    if (qargv) {
        for (i = 0 ; i < qargc ; i++)
2622 2623
            VIR_FREE((qargv)[i]);
        VIR_FREE(qargv);
D
Daniel P. Berrange 已提交
2624
    }
2625 2626 2627 2628 2629
    if (qenv) {
        for (i = 0 ; i < qenvc ; i++)
            VIR_FREE((qenv)[i]);
        VIR_FREE(qenv);
    }
D
Daniel P. Berrange 已提交
2630
    return -1;
2631 2632 2633 2634

#undef ADD_ARG
#undef ADD_ARG_LIT
#undef ADD_ARG_SPACE
2635 2636 2637 2638 2639
#undef ADD_USBDISK
#undef ADD_ENV
#undef ADD_ENV_COPY
#undef ADD_ENV_LIT
#undef ADD_ENV_SPACE
D
Daniel P. Berrange 已提交
2640
}
2641 2642


2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664
/*
 * This method takes a string representing a QEMU command line ARGV set
 * optionall prefixed by a list of environment variables. It then tries
 * to split it up into a NULL terminated list of env & argv, splitting
 * on space
 */
static int qemuStringToArgvEnv(const char *args,
                               const char ***retenv,
                               const char ***retargv)
{
    char **arglist = NULL;
    int argcount = 0;
    int argalloc = 0;
    int envend;
    int i;
    const char *curr = args;
    const char **progenv = NULL;
    const char **progargv = NULL;

    /* Iterate over string, splitting on sequences of ' ' */
    while (curr && *curr != '\0') {
        char *arg;
2665 2666 2667 2668 2669 2670 2671 2672 2673 2674
        const char *next;
        if (*curr == '\'') {
            curr++;
            next = strchr(curr, '\'');
        } else if (*curr == '"') {
            curr++;
            next = strchr(curr, '"');
        } else {
            next = strchr(curr, ' ');
        }
2675 2676 2677
        if (!next)
            next = strchr(curr, '\n');

2678
        if (next) {
2679
            arg = strndup(curr, next-curr);
2680 2681 2682 2683
            if (*next == '\'' ||
                *next == '"')
                next++;
        } else {
2684
            arg = strdup(curr);
2685
        }
2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705

        if (!arg)
            goto no_memory;

        if (argalloc == argcount) {
            if (VIR_REALLOC_N(arglist, argalloc+10) < 0) {
                VIR_FREE(arg);
                goto no_memory;
            }
            argalloc+=10;
        }

        arglist[argcount++] = arg;

        while (next && c_isspace(*next))
            next++;

        curr = next;
    }

2706
    /* Iterate over list of args, finding first arg not containing
2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718
     * the '=' character (eg, skip over env vars FOO=bar) */
    for (envend = 0 ; ((envend < argcount) &&
                       (strchr(arglist[envend], '=') != NULL));
         envend++)
        ; /* nada */

    /* Copy the list of env vars */
    if (envend > 0) {
        if (VIR_REALLOC_N(progenv, envend+1) < 0)
            goto no_memory;
        for (i = 0 ; i < envend ; i++) {
            progenv[i] = arglist[i];
D
Daniel P. Berrange 已提交
2719
            arglist[i] = NULL;
2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744
        }
        progenv[i] = NULL;
    }

    /* Copy the list of argv */
    if (VIR_REALLOC_N(progargv, argcount-envend + 1) < 0)
        goto no_memory;
    for (i = envend ; i < argcount ; i++)
        progargv[i-envend] = arglist[i];
    progargv[i-envend] = NULL;

    VIR_FREE(arglist);

    *retenv = progenv;
    *retargv = progargv;

    return 0;

no_memory:
    for (i = 0 ; progenv && progenv[i] ; i++)
        VIR_FREE(progenv[i]);
    VIR_FREE(progenv);
    for (i = 0 ; i < argcount ; i++)
        VIR_FREE(arglist[i]);
    VIR_FREE(arglist);
2745
    virReportOOMError(NULL);
2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758
    return -1;
}


/*
 * Search for a named env variable, and return the value part
 */
static const char *qemuFindEnv(const char **progenv,
                               const char *name)
{
    int i;
    int len = strlen(name);

2759
    for (i = 0 ; progenv && progenv[i] ; i++) {
2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876
        if (STREQLEN(progenv[i], name, len) &&
            progenv[i][len] == '=')
            return progenv[i] + len + 1;
    }
    return NULL;
}

/*
 * Takes a string containing a set of key=value,key=value,key...
 * parameters and splits them up, returning two arrays with
 * the individual keys and values
 */
static int
qemuParseCommandLineKeywords(virConnectPtr conn,
                             const char *str,
                             char ***retkeywords,
                             char ***retvalues)
{
    int keywordCount = 0;
    int keywordAlloc = 0;
    char **keywords = NULL;
    char **values = NULL;
    const char *start = str;
    int i;

    *retkeywords = NULL;
    *retvalues = NULL;

    while (start) {
        const char *separator;
        const char *endmark;
        char *keyword;
        char *value;

        if (!(separator = strchr(start, '='))) {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             _("malformed keyword arguments in '%s'"), str);
            goto error;
        }
        if (!(keyword = strndup(start, separator - start)))
            goto no_memory;

        separator++;
        endmark = strchr(separator, ',');

        value = endmark ?
            strndup(separator, endmark - separator) :
            strdup(separator);
        if (!value) {
            VIR_FREE(keyword);
            goto no_memory;
        }

        if (keywordAlloc == keywordCount) {
            if (VIR_REALLOC_N(keywords, keywordAlloc + 10) < 0 ||
                VIR_REALLOC_N(values, keywordAlloc + 10) < 0) {
                VIR_FREE(keyword);
                VIR_FREE(value);
                goto no_memory;
            }
            keywordAlloc += 10;
        }

        keywords[keywordCount] = keyword;
        values[keywordCount] = value;
        keywordCount++;

        start = endmark ? endmark + 1 : NULL;
    }

    *retkeywords = keywords;
    *retvalues = values;

    return keywordCount;

no_memory:
    virReportOOMError(conn);
error:
    for (i = 0 ; i < keywordCount ; i++) {
        VIR_FREE(keywords[i]);
        VIR_FREE(values[i]);
    }
    VIR_FREE(keywords);
    VIR_FREE(values);
    return -1;
}

/*
 * Tries to parse new style QEMU -drive  args.
 *
 * eg -drive file=/dev/HostVG/VirtData1,if=ide,index=1
 *
 * Will fail if not using the 'index' keyword
 */
static virDomainDiskDefPtr
qemuParseCommandLineDisk(virConnectPtr conn,
                         const char *val)
{
    virDomainDiskDefPtr def = NULL;
    char **keywords;
    char **values;
    int nkeywords;
    int i;
    int idx = -1;

    if ((nkeywords = qemuParseCommandLineKeywords(conn, val,
                                                  &keywords,
                                                  &values)) < 0)
        return NULL;

    if (VIR_ALLOC(def) < 0) {
        virReportOOMError(conn);
        goto cleanup;
    }

    def->bus = VIR_DOMAIN_DISK_BUS_IDE;
    def->device = VIR_DOMAIN_DISK_DEVICE_DISK;
2877
    def->type = VIR_DOMAIN_DISK_TYPE_FILE;
2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998

    for (i = 0 ; i < nkeywords ; i++) {
        if (STREQ(keywords[i], "file")) {
            if (values[i] && STRNEQ(values[i], "")) {
                def->src = values[i];
                values[i] = NULL;
                if (STRPREFIX(def->src, "/dev/"))
                    def->type = VIR_DOMAIN_DISK_TYPE_BLOCK;
                else
                    def->type = VIR_DOMAIN_DISK_TYPE_FILE;
            } else {
                def->type = VIR_DOMAIN_DISK_TYPE_FILE;
            }
        } else if (STREQ(keywords[i], "if")) {
            if (STREQ(values[i], "ide"))
                def->bus = VIR_DOMAIN_DISK_BUS_IDE;
            else if (STREQ(values[i], "scsi"))
                def->bus = VIR_DOMAIN_DISK_BUS_SCSI;
            else if (STREQ(values[i], "virtio"))
                def->bus = VIR_DOMAIN_DISK_BUS_VIRTIO;
            else if (STREQ(values[i], "xen"))
                def->bus = VIR_DOMAIN_DISK_BUS_XEN;
        } else if (STREQ(keywords[i], "media")) {
            if (STREQ(values[i], "cdrom")) {
                def->device = VIR_DOMAIN_DISK_DEVICE_CDROM;
                def->readonly = 1;
            } else if (STREQ(values[i], "floppy"))
                def->device = VIR_DOMAIN_DISK_DEVICE_FLOPPY;
        } else if (STREQ(keywords[i], "format")) {
            def->driverName = strdup("qemu");
            if (!def->driverName) {
                virDomainDiskDefFree(def);
                def = NULL;
                virReportOOMError(conn);
                goto cleanup;
            }
            def->driverType = values[i];
            values[i] = NULL;
        } else if (STREQ(keywords[i], "cache")) {
            if (STREQ(values[i], "off") ||
                STREQ(values[i], "none"))
                def->cachemode = VIR_DOMAIN_DISK_CACHE_DISABLE;
            else if (STREQ(values[i], "writeback") ||
                     STREQ(values[i], "on"))
                def->cachemode = VIR_DOMAIN_DISK_CACHE_WRITEBACK;
            else if (STREQ(values[i], "writethrough"))
                def->cachemode = VIR_DOMAIN_DISK_CACHE_WRITETHRU;
        } else if (STREQ(keywords[i], "index")) {
            if (virStrToLong_i(values[i], NULL, 10, &idx) < 0) {
                virDomainDiskDefFree(def);
                def = NULL;
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                                 _("cannot parse drive index '%s'"), val);
                goto cleanup;
            }
        }
    }

    if (!def->src &&
        def->device == VIR_DOMAIN_DISK_DEVICE_DISK) {
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                         _("missing file parameter in drive '%s'"), val);
        virDomainDiskDefFree(def);
        def = NULL;
        goto cleanup;
    }
    if (idx == -1) {
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                         _("missing index parameter in drive '%s'"), val);
        virDomainDiskDefFree(def);
        def = NULL;
        goto cleanup;
    }

    if (def->bus == VIR_DOMAIN_DISK_BUS_IDE) {
        def->dst = strdup("hda");
    } else if (def->bus == VIR_DOMAIN_DISK_BUS_SCSI) {
        def->dst = strdup("sda");
    } else if (def->bus == VIR_DOMAIN_DISK_BUS_VIRTIO) {
        def->dst = strdup("vda");
    } else if (def->bus == VIR_DOMAIN_DISK_BUS_XEN) {
        def->dst = strdup("xvda");
    } else {
        def->dst = strdup("hda");
    }

    if (!def->dst) {
        virDomainDiskDefFree(def);
        def = NULL;
        virReportOOMError(conn);
        goto cleanup;
    }
    if (STREQ(def->dst, "xvda"))
        def->dst[3] = 'a' + idx;
    else
        def->dst[2] = 'a' + idx;

cleanup:
    for (i = 0 ; i < nkeywords ; i++) {
        VIR_FREE(keywords[i]);
        VIR_FREE(values[i]);
    }
    VIR_FREE(keywords);
    VIR_FREE(values);
    return def;
}

/*
 * Tries to find a NIC definition matching a vlan we want
 */
static const char *
qemuFindNICForVLAN(virConnectPtr conn,
                   int nnics,
                   const char **nics,
                   int wantvlan)
{
    int i;
    for (i = 0 ; i < nnics ; i++) {
        int gotvlan;
        const char *tmp = strstr(nics[i], "vlan=");
        char *end;
2999 3000 3001 3002
        if (!tmp)
            continue;

        tmp += strlen("vlan=");
3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013

        if (virStrToLong_i(tmp, &end, 10, &gotvlan) < 0) {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             _("cannot parse NIC vlan in '%s'"), nics[i]);
            return NULL;
        }

        if (gotvlan == wantvlan)
            return nics[i];
    }

3014 3015 3016
    if (wantvlan == 0 && nnics > 0)
        return nics[0];

3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029
    qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                     _("cannot find NIC definition for vlan %d"), wantvlan);
    return NULL;
}


/*
 * Tries to parse a QEMU -net backend argument. Gets given
 * a list of all known -net frontend arguments to try and
 * match up against. Horribly complicated stuff
 */
static virDomainNetDefPtr
qemuParseCommandLineNet(virConnectPtr conn,
3030
                        virCapsPtr caps,
3031 3032 3033 3034 3035
                        const char *val,
                        int nnics,
                        const char **nics)
{
    virDomainNetDefPtr def = NULL;
3036 3037
    char **keywords = NULL;
    char **values = NULL;
3038 3039 3040 3041
    int nkeywords;
    const char *nic;
    int wantvlan = 0;
    const char *tmp;
3042
    int genmac = 1;
3043 3044 3045 3046
    int i;

    tmp = strchr(val, ',');

3047 3048 3049 3050 3051 3052 3053 3054 3055
    if (tmp) {
        if ((nkeywords = qemuParseCommandLineKeywords(conn,
                                                      tmp+1,
                                                      &keywords,
                                                      &values)) < 0)
            return NULL;
    } else {
        nkeywords = 0;
    }
3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104

    if (VIR_ALLOC(def) < 0) {
        virReportOOMError(conn);
        goto cleanup;
    }

    /* 'tap' could turn into libvirt type=ethernet, type=bridge or
     * type=network, but we can't tell, so use the generic config */
    if (STRPREFIX(val, "tap,"))
        def->type = VIR_DOMAIN_NET_TYPE_ETHERNET;
    else if (STRPREFIX(val, "socket"))
        def->type = VIR_DOMAIN_NET_TYPE_CLIENT;
    else if (STRPREFIX(val, "user"))
        def->type = VIR_DOMAIN_NET_TYPE_USER;
    else
        def->type = VIR_DOMAIN_NET_TYPE_ETHERNET;

    for (i = 0 ; i < nkeywords ; i++) {
        if (STREQ(keywords[i], "vlan")) {
            if (virStrToLong_i(values[i], NULL, 10, &wantvlan) < 0) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                                 _("cannot parse vlan in '%s'"), val);
                virDomainNetDefFree(def);
                def = NULL;
                goto cleanup;
            }
        } else if (def->type == VIR_DOMAIN_NET_TYPE_ETHERNET &&
                   STREQ(keywords[i], "script") && STRNEQ(values[i], "")) {
            def->data.ethernet.script = values[i];
            values[i] = NULL;
        } else if (def->type == VIR_DOMAIN_NET_TYPE_ETHERNET &&
                   STREQ(keywords[i], "ifname")) {
            def->ifname = values[i];
            values[i] = NULL;
        }
    }


    /* Done parsing the nic backend. Now to try and find corresponding
     * frontend, based off vlan number. NB this assumes a 1-1 mapping
     */

    nic = qemuFindNICForVLAN(conn, nnics, nics, wantvlan);
    if (!nic) {
        virDomainNetDefFree(def);
        def = NULL;
        goto cleanup;
    }

3105 3106 3107
    if (!STRPREFIX(nic, "nic")) {
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                         _("cannot parse NIC definition '%s'"), nic);
3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119
        virDomainNetDefFree(def);
        def = NULL;
        goto cleanup;
    }

    for (i = 0 ; i < nkeywords ; i++) {
        VIR_FREE(keywords[i]);
        VIR_FREE(values[i]);
    }
    VIR_FREE(keywords);
    VIR_FREE(values);

3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130
    if (STRPREFIX(nic, "nic,")) {
        if ((nkeywords = qemuParseCommandLineKeywords(conn,
                                                      nic + strlen("nic,"),
                                                      &keywords,
                                                      &values)) < 0) {
            virDomainNetDefFree(def);
            def = NULL;
            goto cleanup;
        }
    } else {
        nkeywords = 0;
3131 3132 3133 3134
    }

    for (i = 0 ; i < nkeywords ; i++) {
        if (STREQ(keywords[i], "macaddr")) {
3135
            genmac = 0;
3136 3137 3138 3139 3140 3141 3142 3143
            if (virParseMacAddr(values[i], def->mac) < 0) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                                 _("unable to parse mac address '%s'"),
                                 values[i]);
                virDomainNetDefFree(def);
                def = NULL;
                goto cleanup;
            }
3144 3145 3146 3147 3148 3149
        } else if (STREQ(keywords[i], "model")) {
            def->model = values[i];
            values[i] = NULL;
        }
    }

3150 3151 3152
    if (genmac)
        virCapabilitiesGenerateMac(caps, def->mac);

3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262 3263 3264 3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319 3320 3321 3322 3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333 3334
cleanup:
    for (i = 0 ; i < nkeywords ; i++) {
        VIR_FREE(keywords[i]);
        VIR_FREE(values[i]);
    }
    VIR_FREE(keywords);
    VIR_FREE(values);
    return def;
}


/*
 * Tries to parse a QEMU PCI device
 */
static virDomainHostdevDefPtr
qemuParseCommandLinePCI(virConnectPtr conn,
                        const char *val)
{
    virDomainHostdevDefPtr def = NULL;
    int bus = 0, slot = 0, func = 0;
    const char *start;
    char *end;

    if (!STRPREFIX(val, "host=")) {
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                         _("unknown PCI device syntax '%s'"), val);
        VIR_FREE(def);
        goto cleanup;
    }

    start = val + strlen("host=");
    if (virStrToLong_i(start, &end, 16, &bus) < 0 || !end || *end != ':') {
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                         _("cannot extract PCI device bus '%s'"), val);
        VIR_FREE(def);
        goto cleanup;
    }
    start = end + 1;
    if (virStrToLong_i(start, &end, 16, &slot) < 0 || !end || *end != '.') {
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                         _("cannot extract PCI device slot '%s'"), val);
        VIR_FREE(def);
        goto cleanup;
    }
    start = end + 1;
    if (virStrToLong_i(start, NULL, 16, &func) < 0) {
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                         _("cannot extract PCI device function '%s'"), val);
        VIR_FREE(def);
        goto cleanup;
    }

    if (VIR_ALLOC(def) < 0) {
        virReportOOMError(conn);
        goto cleanup;
    }

    def->mode = VIR_DOMAIN_HOSTDEV_MODE_SUBSYS;
    def->managed = 1;
    def->source.subsys.type = VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI;
    def->source.subsys.u.pci.bus = bus;
    def->source.subsys.u.pci.slot = slot;
    def->source.subsys.u.pci.function = func;

cleanup:
    return def;
}


/*
 * Tries to parse a QEMU USB device
 */
static virDomainHostdevDefPtr
qemuParseCommandLineUSB(virConnectPtr conn,
                        const char *val)
{
    virDomainHostdevDefPtr def = NULL;
    int first = 0, second = 0;
    const char *start;
    char *end;

    if (!STRPREFIX(val, "host:")) {
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                         _("unknown PCI device syntax '%s'"), val);
        VIR_FREE(def);
        goto cleanup;
    }

    start = val + strlen("host:");
    if (strchr(start, ':')) {
        if (virStrToLong_i(start, &end, 16, &first) < 0 || !end || *end != ':') {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             _("cannot extract USB device vendor '%s'"), val);
            VIR_FREE(def);
            goto cleanup;
        }
        start = end + 1;
        if (virStrToLong_i(start, NULL, 16, &second) < 0) {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             _("cannot extract PCI device product '%s'"), val);
            VIR_FREE(def);
            goto cleanup;
        }
    } else {
        if (virStrToLong_i(start, &end, 10, &first) < 0 || !end || *end != '.') {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             _("cannot extract PCI device bus '%s'"), val);
            VIR_FREE(def);
            goto cleanup;
        }
        start = end + 1;
        if (virStrToLong_i(start, NULL, 10, &second) < 0) {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             _("cannot extract PCI device address '%s'"), val);
            VIR_FREE(def);
            goto cleanup;
        }
    }

    if (VIR_ALLOC(def) < 0) {
        virReportOOMError(conn);
        goto cleanup;
    }

    def->mode = VIR_DOMAIN_HOSTDEV_MODE_SUBSYS;
    def->managed = 0;
    def->source.subsys.type = VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB;
    if (*end == '.') {
        def->source.subsys.u.usb.bus = first;
        def->source.subsys.u.usb.device = second;
    } else {
        def->source.subsys.u.usb.vendor = first;
        def->source.subsys.u.usb.product = second;
    }

cleanup:
    return def;
}


/*
 * Tries to parse a QEMU serial/parallel device
 */
static virDomainChrDefPtr
qemuParseCommandLineChr(virConnectPtr conn,
                        const char *val)
{
    virDomainChrDefPtr def;

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

    if (STREQ(val, "null")) {
        def->type = VIR_DOMAIN_CHR_TYPE_NULL;
    } else if (STREQ(val, "vc")) {
        def->type = VIR_DOMAIN_CHR_TYPE_VC;
    } else if (STREQ(val, "pty")) {
        def->type = VIR_DOMAIN_CHR_TYPE_PTY;
    } else if (STRPREFIX(val, "file:")) {
        def->type = VIR_DOMAIN_CHR_TYPE_FILE;
        def->data.file.path = strdup(val+strlen("file:"));
        if (!def->data.file.path)
            goto no_memory;
    } else if (STRPREFIX(val, "pipe:")) {
        def->type = VIR_DOMAIN_CHR_TYPE_PIPE;
        def->data.file.path = strdup(val+strlen("pipe:"));
        if (!def->data.file.path)
            goto no_memory;
    } else if (STREQ(val, "stdio")) {
        def->type = VIR_DOMAIN_CHR_TYPE_STDIO;
    } else if (STRPREFIX(val, "udp:")) {
        const char *svc1, *host2, *svc2;
        def->type = VIR_DOMAIN_CHR_TYPE_UDP;
        val += strlen("udp:");
        svc1 = strchr(val, ':');
        host2 = svc1 ? strchr(svc1, '@') : NULL;
        svc2 = host2 ? strchr(host2, ':') : NULL;

        if (svc1)
            def->data.udp.connectHost = strndup(val, svc1-val);
        else
            def->data.udp.connectHost = strdup(val);
3335 3336 3337 3338

        if (!def->data.udp.connectHost)
            goto no_memory;

3339 3340 3341 3342 3343 3344
        if (svc1) {
            svc1++;
            if (host2)
                def->data.udp.connectService = strndup(svc1, host2-svc1);
            else
                def->data.udp.connectService = strdup(svc1);
3345 3346 3347

            if (!def->data.udp.connectService)
                goto no_memory;
3348 3349 3350 3351 3352 3353 3354 3355
        }

        if (host2) {
            host2++;
            if (svc2)
                def->data.udp.bindHost = strndup(host2, svc2-host2);
            else
                def->data.udp.bindHost = strdup(host2);
3356 3357 3358

            if (!def->data.udp.bindHost)
                goto no_memory;
3359 3360 3361 3362
        }
        if (svc2) {
            svc2++;
            def->data.udp.bindService = strdup(svc2);
3363 3364
            if (!def->data.udp.bindService)
                goto no_memory;
3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386
        }
    } else if (STRPREFIX(val, "tcp:") ||
               STRPREFIX(val, "telnet:")) {
        const char *opt, *svc;
        def->type = VIR_DOMAIN_CHR_TYPE_TCP;
        if (STRPREFIX(val, "tcp:")) {
            val += strlen("tcp:");
        } else {
            val += strlen("telnet:");
            def->data.tcp.protocol = VIR_DOMAIN_CHR_TCP_PROTOCOL_TELNET;
        }
        svc = strchr(val, ':');
        if (!svc) {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             _("cannot find port number in character device %s"), val);
            goto error;
        }
        opt = strchr(svc, ',');
        if (opt && strstr(opt, "server"))
            def->data.tcp.listen = 1;

        def->data.tcp.host = strndup(val, svc-val);
3387 3388
        if (!def->data.tcp.host)
            goto no_memory;
3389 3390 3391 3392 3393 3394
        svc++;
        if (opt) {
            def->data.tcp.service = strndup(svc, opt-svc);
        } else {
            def->data.tcp.service = strdup(svc);
        }
3395 3396
        if (!def->data.tcp.service)
            goto no_memory;
3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436 3437
    } else if (STRPREFIX(val, "unix:")) {
        const char *opt;
        val += strlen("unix:");
        opt = strchr(val, ',');
        def->type = VIR_DOMAIN_CHR_TYPE_UNIX;
        if (opt) {
            if (strstr(opt, "listen"))
                def->data.nix.listen = 1;
            def->data.nix.path = strndup(val, opt-val);
        } else {
            def->data.nix.path = strdup(val);
        }
        if (!def->data.nix.path)
            goto no_memory;

    } else if (STRPREFIX(val, "/dev")) {
        def->type = VIR_DOMAIN_CHR_TYPE_DEV;
        def->data.file.path = strdup(val);
        if (!def->data.file.path)
            goto no_memory;
    } else {
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                         _("unknown character device syntax %s"), val);
        goto error;
    }

    return def;

no_memory:
    virReportOOMError(conn);
error:
    virDomainChrDefFree(def);
    return NULL;
}

/*
 * Analyse the env and argv settings and reconstruct a
 * virDomainDefPtr representing these settings as closely
 * as is practical. This is not an exact science....
 */
virDomainDefPtr qemuParseCommandLine(virConnectPtr conn,
3438
                                     virCapsPtr caps,
3439 3440 3441 3442 3443 3444 3445 3446 3447 3448
                                     const char **progenv,
                                     const char **progargv)
{
    virDomainDefPtr def;
    int i;
    int nographics = 0;
    int fullscreen = 0;
    char *path;
    int nnics = 0;
    const char **nics = NULL;
3449
    int video = VIR_DOMAIN_VIDEO_TYPE_CIRRUS;
3450 3451 3452 3453 3454 3455 3456 3457 3458 3459

    if (!progargv[0]) {
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                         "%s", _("no emulator path found"));
        return NULL;
    }

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

3460 3461
    virUUIDGenerate(def->uuid);

3462 3463 3464 3465 3466 3467 3468 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527 3528 3529 3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610 3611 3612 3613 3614 3615 3616 3617 3618 3619 3620 3621 3622 3623 3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 3638 3639 3640 3641 3642 3643 3644 3645 3646 3647 3648 3649 3650 3651 3652 3653 3654 3655 3656 3657 3658 3659 3660 3661 3662 3663 3664 3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 3676 3677 3678 3679 3680 3681 3682 3683 3684 3685 3686 3687 3688 3689 3690 3691
    def->id = -1;
    def->memory = def->maxmem = 64 * 1024;
    def->vcpus = 1;
    def->features = (1 << VIR_DOMAIN_FEATURE_ACPI)
        /*| (1 << VIR_DOMAIN_FEATURE_APIC)*/;
    def->onReboot = VIR_DOMAIN_LIFECYCLE_RESTART;
    def->onCrash = VIR_DOMAIN_LIFECYCLE_DESTROY;
    def->onPoweroff = VIR_DOMAIN_LIFECYCLE_DESTROY;
    def->virtType = VIR_DOMAIN_VIRT_QEMU;
    if (!(def->emulator = strdup(progargv[0])))
        goto no_memory;

    if (strstr(def->emulator, "kvm")) {
        def->virtType = VIR_DOMAIN_VIRT_KVM;
        def->features |= (1 << VIR_DOMAIN_FEATURE_PAE);
    }


    if (strstr(def->emulator, "xenner")) {
        def->virtType = VIR_DOMAIN_VIRT_KVM;
        def->os.type = strdup("xen");
    } else {
        def->os.type = strdup("hvm");
    }
    if (!def->os.type)
        goto no_memory;

    if (STRPREFIX(def->emulator, "qemu"))
        path = def->emulator;
    else
        path = strstr(def->emulator, "qemu");
    if (path &&
        STRPREFIX(path, "qemu-system-"))
        def->os.arch = strdup(path + strlen("qemu-system-"));
    else
        def->os.arch = strdup("i686");
    if (!def->os.arch)
        goto no_memory;

#define WANT_VALUE()                                                   \
    const char *val = progargv[++i];                                   \
    if (!val) {                                                        \
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,     \
                         _("missing value for %s argument"), arg);     \
        goto error;                                                    \
    }

    /* One initial loop to get list of NICs, so we
     * can correlate them later */
    for (i = 1 ; progargv[i] ; i++) {
        const char *arg = progargv[i];
        /* Make sure we have a single - for all options to
           simplify next logic */
        if (STRPREFIX(arg, "--"))
            arg++;

        if (STREQ(arg, "-net")) {
            WANT_VALUE();
            if (STRPREFIX(val, "nic")) {
                if (VIR_REALLOC_N(nics, nnics+1) < 0)
                    goto no_memory;
                nics[nnics++] = val;
            }
        }
    }

    /* Now the real processing loop */
    for (i = 1 ; progargv[i] ; i++) {
        const char *arg = progargv[i];
        /* Make sure we have a single - for all options to
           simplify next logic */
        if (STRPREFIX(arg, "--"))
            arg++;

        if (STREQ(arg, "-vnc")) {
            virDomainGraphicsDefPtr vnc;
            char *tmp;
            WANT_VALUE();
            if (VIR_ALLOC(vnc) < 0)
                goto no_memory;
            vnc->type = VIR_DOMAIN_GRAPHICS_TYPE_VNC;

            tmp = strchr(val, ':');
            if (tmp) {
                char *opts;
                if (virStrToLong_i(tmp+1, &opts, 10, &vnc->data.vnc.port) < 0) {
                    VIR_FREE(vnc);
                    qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, \
                                     _("cannot parse VNC port '%s'"), tmp+1);
                    goto error;
                }
                vnc->data.vnc.listenAddr = strndup(val, tmp-val);
                if (!vnc->data.vnc.listenAddr) {
                    VIR_FREE(vnc);
                    goto no_memory;
                }
                vnc->data.vnc.port += 5900;
                vnc->data.vnc.autoport = 0;
            } else {
                vnc->data.vnc.autoport = 1;
            }

            if (VIR_REALLOC_N(def->graphics, def->ngraphics+1) < 0) {
                virDomainGraphicsDefFree(vnc);
                goto no_memory;
            }
            def->graphics[def->ngraphics++] = vnc;
        } else if (STREQ(arg, "-m")) {
            int mem;
            WANT_VALUE();
            if (virStrToLong_i(val, NULL, 10, &mem) < 0) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, \
                                 _("cannot parse memory level '%s'"), val);
                goto error;
            }
            def->memory = def->maxmem = mem * 1024;
        } else if (STREQ(arg, "-smp")) {
            int vcpus;
            WANT_VALUE();
            if (virStrToLong_i(val, NULL, 10, &vcpus) < 0) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, \
                                 _("cannot parse CPU count '%s'"), val);
                goto error;
            }
            def->vcpus = vcpus;
        } else if (STREQ(arg, "-uuid")) {
            WANT_VALUE();
            if (virUUIDParse(val, def->uuid) < 0) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, \
                                 _("cannot parse UUID '%s'"), val);
                goto error;
            }
        } else if (STRPREFIX(arg, "-hd") ||
                   STRPREFIX(arg, "-sd") ||
                   STRPREFIX(arg, "-fd") ||
                   STREQ(arg, "-cdrom")) {
            WANT_VALUE();
            virDomainDiskDefPtr disk;
            if (VIR_ALLOC(disk) < 0)
                goto no_memory;

            if (STRPREFIX(val, "/dev/"))
                disk->type = VIR_DOMAIN_DISK_TYPE_BLOCK;
            else
                disk->type = VIR_DOMAIN_DISK_TYPE_FILE;
            if (STREQ(arg, "-cdrom")) {
                disk->device = VIR_DOMAIN_DISK_DEVICE_CDROM;
                disk->dst = strdup("hdc");
                disk->readonly = 1;
            } else {
                if (STRPREFIX(arg, "-fd")) {
                    disk->device = VIR_DOMAIN_DISK_DEVICE_FLOPPY;
                    disk->bus = VIR_DOMAIN_DISK_BUS_FDC;
                } else {
                    disk->device = VIR_DOMAIN_DISK_DEVICE_DISK;
                    if (STRPREFIX(arg, "-hd"))
                        disk->bus = VIR_DOMAIN_DISK_BUS_IDE;
                    else
                        disk->bus = VIR_DOMAIN_DISK_BUS_SCSI;
                }
                disk->dst = strdup(arg + 1);
            }
            disk->src = strdup(val);
            if (!disk->src ||
                !disk->dst) {
                virDomainDiskDefFree(disk);
                goto no_memory;
            }

            if (VIR_REALLOC_N(def->disks, def->ndisks+1) < 0) {
                virDomainDiskDefFree(disk);
                goto no_memory;
            }
            def->disks[def->ndisks++] = disk;
        } else if (STREQ(arg, "-no-acpi")) {
            def->features &= ~(1 << VIR_DOMAIN_FEATURE_ACPI);
        } else if (STREQ(arg, "-no-reboot")) {
            def->onReboot = VIR_DOMAIN_LIFECYCLE_DESTROY;
        } else if (STREQ(arg, "-no-kvm")) {
            def->virtType = VIR_DOMAIN_VIRT_QEMU;
        } else if (STREQ(arg, "-nographic")) {
            nographics = 1;
        } else if (STREQ(arg, "-full-screen")) {
            fullscreen = 1;
        } else if (STREQ(arg, "-localtime")) {
            def->localtime = 1;
        } else if (STREQ(arg, "-kernel")) {
            WANT_VALUE();
            if (!(def->os.kernel = strdup(val)))
                goto no_memory;
        } else if (STREQ(arg, "-initrd")) {
            WANT_VALUE();
            if (!(def->os.initrd = strdup(val)))
                goto no_memory;
        } else if (STREQ(arg, "-append")) {
            WANT_VALUE();
            if (!(def->os.cmdline = strdup(val)))
                goto no_memory;
        } else if (STREQ(arg, "-boot")) {
            int n, b = 0;
            WANT_VALUE();
            for (n = 0 ; val[n] && b < VIR_DOMAIN_BOOT_LAST ; n++) {
                if (val[n] == 'a')
                    def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_FLOPPY;
                else if (val[n] == 'c')
                    def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_DISK;
                else if (val[n] == 'd')
                    def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_CDROM;
                else if (val[n] == 'n')
                    def->os.bootDevs[b++] = VIR_DOMAIN_BOOT_NET;
            }
            def->os.nBootDevs = b;
        } else if (STREQ(arg, "-name")) {
            WANT_VALUE();
            if (!(def->name = strdup(val)))
                goto no_memory;
        } else if (STREQ(arg, "-M")) {
            WANT_VALUE();
            if (!(def->os.machine = strdup(val)))
                goto no_memory;
        } else if (STREQ(arg, "-serial")) {
            WANT_VALUE();
            if (STRNEQ(val, "none")) {
                virDomainChrDefPtr chr;
                if (!(chr = qemuParseCommandLineChr(conn, val)))
                    goto error;
                if (VIR_REALLOC_N(def->serials, def->nserials+1) < 0) {
                    virDomainChrDefFree(chr);
                    goto no_memory;
                }
3692 3693
                chr->targetType = VIR_DOMAIN_CHR_TARGET_TYPE_SERIAL;
                chr->target.port = def->nserials;
3694 3695 3696 3697 3698 3699 3700 3701 3702 3703 3704 3705
                def->serials[def->nserials++] = chr;
            }
        } else if (STREQ(arg, "-parallel")) {
            WANT_VALUE();
            if (STRNEQ(val, "none")) {
                virDomainChrDefPtr chr;
                if (!(chr = qemuParseCommandLineChr(conn, val)))
                    goto error;
                if (VIR_REALLOC_N(def->parallels, def->nparallels+1) < 0) {
                    virDomainChrDefFree(chr);
                    goto no_memory;
                }
3706 3707
                chr->targetType = VIR_DOMAIN_CHR_TARGET_TYPE_PARALLEL;
                chr->target.port = def->nparallels;
3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720 3721 3722 3723 3724 3725 3726 3727 3728 3729 3730 3731 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763 3764
                def->parallels[def->nparallels++] = chr;
            }
        } else if (STREQ(arg, "-usbdevice")) {
            WANT_VALUE();
            if (STREQ(val, "tablet") ||
                STREQ(val, "mouse")) {
                virDomainInputDefPtr input;
                if (VIR_ALLOC(input) < 0)
                    goto no_memory;
                input->bus = VIR_DOMAIN_INPUT_BUS_USB;
                if (STREQ(val, "tablet"))
                    input->type = VIR_DOMAIN_INPUT_TYPE_TABLET;
                else
                    input->type = VIR_DOMAIN_INPUT_TYPE_MOUSE;
                if (VIR_REALLOC_N(def->inputs, def->ninputs+1) < 0) {
                    virDomainInputDefFree(input);
                    goto no_memory;
                }
                def->inputs[def->ninputs++] = input;
            } else if (STRPREFIX(val, "disk:")) {
                virDomainDiskDefPtr disk;
                if (VIR_ALLOC(disk) < 0)
                    goto no_memory;
                disk->src = strdup(val + strlen("disk:"));
                if (!disk->src) {
                    virDomainDiskDefFree(disk);
                    goto no_memory;
                }
                if (STRPREFIX(disk->src, "/dev/"))
                    disk->type = VIR_DOMAIN_DISK_TYPE_BLOCK;
                else
                    disk->type = VIR_DOMAIN_DISK_TYPE_FILE;
                disk->device = VIR_DOMAIN_DISK_DEVICE_DISK;
                disk->bus = VIR_DOMAIN_DISK_BUS_USB;
                if (!(disk->dst = strdup("sda"))) {
                    virDomainDiskDefFree(disk);
                    goto no_memory;
                }
                if (VIR_REALLOC_N(def->disks, def->ndisks+1) < 0) {
                    virDomainDiskDefFree(disk);
                    goto no_memory;
                }
                def->disks[def->ndisks++] = disk;
            } else {
                virDomainHostdevDefPtr hostdev;
                if (!(hostdev = qemuParseCommandLineUSB(conn, val)))
                    goto error;
                if (VIR_REALLOC_N(def->hostdevs, def->nhostdevs+1) < 0) {
                    virDomainHostdevDefFree(hostdev);
                    goto no_memory;
                }
                def->hostdevs[def->nhostdevs++] = hostdev;
            }
        } else if (STREQ(arg, "-net")) {
            WANT_VALUE();
            if (!STRPREFIX(val, "nic") && STRNEQ(val, "none")) {
                virDomainNetDefPtr net;
3765
                if (!(net = qemuParseCommandLineNet(conn, caps, val, nnics, nics)))
3766 3767 3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778 3779 3780 3781 3782 3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799 3800 3801 3802 3803 3804 3805 3806 3807 3808 3809 3810 3811 3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823
                    goto error;
                if (VIR_REALLOC_N(def->nets, def->nnets+1) < 0) {
                    virDomainNetDefFree(net);
                    goto no_memory;
                }
                def->nets[def->nnets++] = net;
            }
        } else if (STREQ(arg, "-drive")) {
            virDomainDiskDefPtr disk;
            WANT_VALUE();
            if (!(disk = qemuParseCommandLineDisk(conn, val)))
                goto error;
            if (VIR_REALLOC_N(def->disks, def->ndisks+1) < 0) {
                virDomainDiskDefFree(disk);
                goto no_memory;
            }
            def->disks[def->ndisks++] = disk;
        } else if (STREQ(arg, "-pcidevice")) {
            virDomainHostdevDefPtr hostdev;
            WANT_VALUE();
            if (!(hostdev = qemuParseCommandLinePCI(conn, val)))
                goto error;
            if (VIR_REALLOC_N(def->hostdevs, def->nhostdevs+1) < 0) {
                virDomainHostdevDefFree(hostdev);
                goto no_memory;
            }
            def->hostdevs[def->nhostdevs++] = hostdev;
        } else if (STREQ(arg, "-soundhw")) {
            const char *start;
            WANT_VALUE();
            start = val;
            while (start) {
                const char *tmp = strchr(start, ',');
                int type = -1;
                if (STRPREFIX(start, "pcspk")) {
                    type = VIR_DOMAIN_SOUND_MODEL_PCSPK;
                } else if (STRPREFIX(start, "sb16")) {
                    type = VIR_DOMAIN_SOUND_MODEL_SB16;
                } else if (STRPREFIX(start, "es1370")) {
                    type = VIR_DOMAIN_SOUND_MODEL_ES1370;
                } else if (STRPREFIX(start, "ac97")) {
                    type = VIR_DOMAIN_SOUND_MODEL_AC97;
                }

                if (type != -1) {
                    virDomainSoundDefPtr snd;
                    if (VIR_ALLOC(snd) < 0)
                        goto no_memory;
                    snd->model = type;
                    if (VIR_REALLOC_N(def->sounds, def->nsounds+1) < 0) {
                        VIR_FREE(snd);
                        goto no_memory;
                    }
                    def->sounds[def->nsounds++] = snd;
                }

                start = tmp ? tmp + 1 : NULL;
            }
R
Richard Jones 已提交
3824 3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 3835 3836 3837 3838 3839 3840 3841
        } else if (STREQ(arg, "-watchdog")) {
            WANT_VALUE();
            int model = virDomainWatchdogModelTypeFromString (val);

            if (model != -1) {
                virDomainWatchdogDefPtr wd;
                if (VIR_ALLOC(wd) < 0)
                    goto no_memory;
                wd->model = model;
                wd->action = VIR_DOMAIN_WATCHDOG_ACTION_RESET;
                def->watchdog = wd;
            }
        } else if (STREQ(arg, "-watchdog-action") && def->watchdog) {
            WANT_VALUE();
            int action = virDomainWatchdogActionTypeFromString (val);

            if (action != -1)
                def->watchdog->action = action;
3842 3843 3844 3845 3846
        } else if (STREQ(arg, "-bootloader")) {
            WANT_VALUE();
            def->os.bootloader = strdup(val);
            if (!def->os.bootloader)
                goto no_memory;
3847 3848 3849 3850 3851 3852 3853 3854 3855 3856 3857 3858
        } else if (STREQ(arg, "-vmwarevga")) {
            video = VIR_DOMAIN_VIDEO_TYPE_VMVGA;
        } else if (STREQ(arg, "-std-vga")) {
            video = VIR_DOMAIN_VIDEO_TYPE_VGA;
        } else if (STREQ(arg, "-vga")) {
            WANT_VALUE();
            video = qemuVideoTypeFromString(val);
            if (video < 0) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                                 _("unknown video adapter type '%s'"), val);
                goto error;
            }
3859 3860 3861 3862 3863 3864 3865 3866 3867 3868 3869 3870 3871 3872 3873 3874 3875 3876 3877 3878 3879 3880 3881 3882 3883 3884 3885 3886 3887 3888 3889 3890 3891 3892 3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 3910 3911 3912
        } else if (STREQ(arg, "-domid")) {
            WANT_VALUE();
            /* ignore, generted on the fly */
        } else if (STREQ(arg, "-usb")) {
            /* ignore, always added by libvirt */
        } else if (STREQ(arg, "-pidfile")) {
            WANT_VALUE();
            /* ignore, used by libvirt as needed */
        } else if (STREQ(arg, "-incoming")) {
            WANT_VALUE();
            /* ignore, used via restore/migrate APIs */
        } else if (STREQ(arg, "-monitor")) {
            WANT_VALUE();
            /* ignore, used internally by libvirt */
        } else if (STREQ(arg, "-S")) {
            /* ignore, always added by libvirt */
        } else {
            VIR_WARN(_("unknown QEMU argument '%s' during conversion"), arg);
#if 0
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                             _("unknown argument '%s'"), arg);
            goto error;
#endif
        }
    }

#undef WANT_VALUE

    if (!nographics && def->ngraphics == 0) {
        virDomainGraphicsDefPtr sdl;
        const char *display = qemuFindEnv(progenv, "DISPLAY");
        const char *xauth = qemuFindEnv(progenv, "XAUTHORITY");
        if (VIR_ALLOC(sdl) < 0)
            goto no_memory;
        sdl->type = VIR_DOMAIN_GRAPHICS_TYPE_SDL;
        sdl->data.sdl.fullscreen = fullscreen;
        if (display &&
            !(sdl->data.sdl.display = strdup(display))) {
            VIR_FREE(sdl);
            goto no_memory;
        }
        if (xauth &&
            !(sdl->data.sdl.xauth = strdup(xauth))) {
            VIR_FREE(sdl);
            goto no_memory;
        }

        if (VIR_REALLOC_N(def->graphics, def->ngraphics+1) < 0) {
            virDomainGraphicsDefFree(sdl);
            goto no_memory;
        }
        def->graphics[def->ngraphics++] = sdl;
    }

3913 3914 3915 3916 3917 3918 3919 3920 3921 3922 3923 3924 3925 3926 3927 3928 3929 3930
    if (def->ngraphics) {
        virDomainVideoDefPtr vid;
        if (VIR_ALLOC(vid) < 0)
            goto no_memory;
        if (def->virtType == VIR_DOMAIN_VIRT_XEN)
            vid->type = VIR_DOMAIN_VIDEO_TYPE_XEN;
        else
            vid->type = video;
        vid->vram = virDomainVideoDefaultRAM(def, vid->type);
        vid->heads = 1;

        if (VIR_REALLOC_N(def->videos, def->nvideos+1) < 0) {
            virDomainVideoDefFree(vid);
            goto no_memory;
        }
        def->videos[def->nvideos++] = vid;
    }

3931 3932 3933 3934 3935 3936 3937 3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948 3949
    VIR_FREE(nics);

    if (!def->name) {
        if (!(def->name = strdup("unnamed")))
            goto no_memory;
    }

    return def;

no_memory:
    virReportOOMError(conn);
error:
    virDomainDefFree(def);
    VIR_FREE(nics);
    return NULL;
}


virDomainDefPtr qemuParseCommandLineString(virConnectPtr conn,
3950
                                           virCapsPtr caps,
3951 3952 3953 3954 3955 3956 3957 3958 3959 3960
                                           const char *args)
{
    const char **progenv = NULL;
    const char **progargv = NULL;
    virDomainDefPtr def = NULL;
    int i;

    if (qemuStringToArgvEnv(args, &progenv, &progargv) < 0)
        goto cleanup;

3961
    def = qemuParseCommandLine(conn, caps, progenv, progargv);
3962 3963 3964 3965 3966 3967 3968 3969 3970 3971 3972 3973

cleanup:
    for (i = 0 ; progargv && progargv[i] ; i++)
        VIR_FREE(progargv[i]);
    VIR_FREE(progargv);

    for (i = 0 ; progenv && progenv[i] ; i++)
        VIR_FREE(progenv[i]);
    VIR_FREE(progenv);

    return def;
}