qemu_conf.c 97.5 KB
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/*
 * config.c: VM configuration management
 *
 * Copyright (C) 2006, 2007 Red Hat, Inc.
 * 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"

#ifdef WITH_QEMU
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#include <dirent.h>
#include <string.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/stat.h>
#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 <libxml/parser.h>
#include <libxml/tree.h>
#include <libxml/xpath.h>
#include <libxml/uri.h>

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#include "libvirt/virterror.h"
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#include "qemu_conf.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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#define qemudLog(level, msg...) fprintf(stderr, msg)

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void qemudReportError(virConnectPtr conn,
                      virDomainPtr dom,
                      virNetworkPtr net,
                      int code, const char *fmt, ...) {
    va_list args;
    char errorMessage[QEMUD_MAX_ERROR_LEN];

    if (fmt) {
        va_start(args, fmt);
        vsnprintf(errorMessage, QEMUD_MAX_ERROR_LEN-1, fmt, args);
        va_end(args);
    } else {
        errorMessage[0] = '\0';
    }
    __virRaiseError(conn, dom, net, VIR_FROM_QEMU, code, VIR_ERR_ERROR,
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                    NULL, NULL, NULL, -1, -1, "%s", errorMessage);
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}

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int qemudLoadDriverConfig(struct qemud_driver *driver,
                          const char *filename) {
    virConfPtr conf;
    virConfValuePtr p;

    /* Setup 2 critical defaults */
    strcpy(driver->vncListen, "127.0.0.1");
    if (!(driver->vncTLSx509certdir = strdup(SYSCONF_DIR "/pki/libvirt-vnc"))) {
        qemudReportError(NULL, NULL, NULL, VIR_ERR_NO_MEMORY,
                         "vncTLSx509certdir");
        return -1;
    }

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

    conf = virConfReadFile (filename);
    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) {
        free(driver->vncTLSx509certdir);
        if (!(driver->vncTLSx509certdir = strdup(p->str))) {
            qemudReportError(NULL, NULL, NULL, VIR_ERR_NO_MEMORY,
                             "vncTLSx509certdir");
            virConfFree(conf);
            return -1;
        }
    }

    p = virConfGetValue (conf, "vnc_listen");
    CHECK_TYPE ("vnc_listen", VIR_CONF_STRING);
    if (p && p->str) {
        strncpy(driver->vncListen, p->str, sizeof(driver->vncListen));
        driver->vncListen[sizeof(driver->vncListen)-1] = '\0';
    }

    virConfFree (conf);
    return 0;
}


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struct qemud_vm *qemudFindVMByID(const struct qemud_driver *driver, int id) {
    struct qemud_vm *vm = driver->vms;

    while (vm) {
        if (qemudIsActiveVM(vm) && vm->id == id)
            return vm;
        vm = vm->next;
    }

    return NULL;
}

struct qemud_vm *qemudFindVMByUUID(const struct qemud_driver *driver,
                                   const unsigned char *uuid) {
    struct qemud_vm *vm = driver->vms;

    while (vm) {
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        if (!memcmp(vm->def->uuid, uuid, VIR_UUID_BUFLEN))
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            return vm;
        vm = vm->next;
    }

    return NULL;
}

struct qemud_vm *qemudFindVMByName(const struct qemud_driver *driver,
                                   const char *name) {
    struct qemud_vm *vm = driver->vms;

    while (vm) {
        if (!strcmp(vm->def->name, name))
            return vm;
        vm = vm->next;
    }

    return NULL;
}

struct qemud_network *qemudFindNetworkByUUID(const struct qemud_driver *driver,
                                             const unsigned char *uuid) {
    struct qemud_network *network = driver->networks;

    while (network) {
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        if (!memcmp(network->def->uuid, uuid, VIR_UUID_BUFLEN))
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            return network;
        network = network->next;
    }

    return NULL;
}

struct qemud_network *qemudFindNetworkByName(const struct qemud_driver *driver,
                                             const char *name) {
    struct qemud_network *network = driver->networks;

    while (network) {
        if (!strcmp(network->def->name, name))
            return network;
        network = network->next;
    }

    return NULL;
}

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/* Free all memory associated with a struct qemud_vm object */
void qemudFreeVMDef(struct qemud_vm_def *def) {
    struct qemud_vm_disk_def *disk = def->disks;
    struct qemud_vm_net_def *net = def->nets;
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    struct qemud_vm_input_def *input = def->inputs;
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    while (disk) {
        struct qemud_vm_disk_def *prev = disk;
        disk = disk->next;
        free(prev);
    }
    while (net) {
        struct qemud_vm_net_def *prev = net;
        net = net->next;
        free(prev);
    }
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    while (input) {
        struct qemud_vm_input_def *prev = input;
        input = input->next;
        free(prev);
    }
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    free(def);
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}

void qemudFreeVM(struct qemud_vm *vm) {
    qemudFreeVMDef(vm->def);
    if (vm->newDef)
        qemudFreeVMDef(vm->newDef);
    free(vm);
}
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/* The list of possible machine types for various architectures,
   as supported by QEMU - taken from 'qemu -M ?' for each arch */
static const char *arch_info_x86_machines[] = {
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    "pc", "isapc", NULL
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};
static const char *arch_info_mips_machines[] = {
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    "mips", NULL
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};
static const char *arch_info_sparc_machines[] = {
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    "sun4m", NULL
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};
static const char *arch_info_ppc_machines[] = {
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    "g3bw", "mac99", "prep", NULL
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};

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

struct qemu_feature_flags arch_info_x86_64_flags [] = {
    { "acpi", 1, 1 },
    { "apic", 1, 0 },
    { NULL, -1, -1 }
};

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/* The archicture tables for supported QEMU archs */
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struct qemu_arch_info qemudArchs[] = { 
    /* i686 must be in position 0 */
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    {  "i686", 32, arch_info_x86_machines, "qemu", arch_info_i686_flags },
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    /* x86_64 must be in position 1 */
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    {  "x86_64", 64, arch_info_x86_machines, "qemu-system-x86_64", arch_info_x86_64_flags },
    {  "mips", 32, arch_info_mips_machines, "qemu-system-mips", NULL },
    {  "mipsel", 32, arch_info_mips_machines, "qemu-system-mipsel", NULL },
    {  "sparc", 32, arch_info_sparc_machines, "qemu-system-sparc", NULL },
    {  "ppc", 32, arch_info_ppc_machines, "qemu-system-ppc", NULL },
    { NULL, -1, NULL, NULL, NULL }
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};

/* Return the default architecture if none is explicitly requested*/
static const char *qemudDefaultArch(void) {
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    return qemudArchs[0].arch;
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}

/* Return the default machine type for a given architecture */
static const char *qemudDefaultMachineForArch(const char *arch) {
    int i;

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    for (i = 0; qemudArchs[i].arch; i++) {
        if (!strcmp(qemudArchs[i].arch, arch)) {
            return qemudArchs[i].machines[0];
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        }
    }

    return NULL;
}

/* Return the default binary name for a particular architecture */
static const char *qemudDefaultBinaryForArch(const char *arch) {
    int i;

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    for (i = 0 ; qemudArchs[i].arch; i++) {
        if (!strcmp(qemudArchs[i].arch, arch)) {
            return qemudArchs[i].binary;
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        }
    }

    return NULL;
}

/* Find the fully qualified path to the binary for an architecture */
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static char *qemudLocateBinaryForArch(virConnectPtr conn,
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                                      int virtType, const char *arch) {
    const char *name;
    char *path;

    if (virtType == QEMUD_VIRT_KVM)
        name = "qemu-kvm";
    else
        name = qemudDefaultBinaryForArch(arch);

    if (!name) {
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        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "cannot determin binary for architecture %s", arch);
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        return NULL;
    }

    /* XXX lame. should actually use $PATH ... */
    path = malloc(strlen(name) + strlen("/usr/bin/") + 1);
    if (!path) {
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        qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "path");
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        return NULL;
    }
    strcpy(path, "/usr/bin/");
    strcat(path, name);
    return path;
}

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static int qemudExtractVersionInfo(const char *qemu, int *version, int *flags) {
    pid_t child;
    int newstdout[2];

    *flags = 0;
    *version = 0;

    if (pipe(newstdout) < 0) {
        return -1;
    }

    if ((child = fork()) < 0) {
        close(newstdout[0]);
        close(newstdout[1]);
        return -1;
    }

    if (child == 0) { /* Kid */
        if (close(STDIN_FILENO) < 0)
            goto cleanup1;
        if (close(STDERR_FILENO) < 0)
            goto cleanup1;
        if (close(newstdout[0]) < 0)
            goto cleanup1;
        if (dup2(newstdout[1], STDOUT_FILENO) < 0)
            goto cleanup1;

        /* Just in case QEMU is translated someday.. */
        setenv("LANG", "C", 1);
        execl(qemu, qemu, (char*)NULL);

    cleanup1:
        _exit(-1); /* Just in case */
    } else { /* Parent */
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        char help[8192]; /* Ought to be enough to hold QEMU help screen */
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        int got = 0, ret = -1;
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        int major, minor, micro;

        if (close(newstdout[1]) < 0)
            goto cleanup2;

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        while (got < (sizeof(help)-1)) {
            int len;
            if ((len = read(newstdout[0], help+got, sizeof(help)-got-1)) <= 0) {
                if (!len)
                    break;
                if (errno == EINTR)
                    continue;
                goto cleanup2;
            }
            got += len;
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        }
        help[got] = '\0';

        if (sscanf(help, "QEMU PC emulator version %d.%d.%d", &major,&minor, &micro) != 3) {
            goto cleanup2;
        }

        *version = (major * 1000 * 1000) + (minor * 1000) + micro;
        if (strstr(help, "-no-kqemu"))
            *flags |= QEMUD_CMD_FLAG_KQEMU;
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        if (strstr(help, "-no-reboot"))
            *flags |= QEMUD_CMD_FLAG_NO_REBOOT;
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        if (*version >= 9000)
            *flags |= QEMUD_CMD_FLAG_VNC_COLON;
        ret = 0;

        qemudDebug("Version %d %d %d  Cooked version: %d, with flags ? %d",
                   major, minor, micro, *version, *flags);

    cleanup2:
        if (close(newstdout[0]) < 0)
            ret = -1;

    rewait:
        if (waitpid(child, &got, 0) != child) {
            if (errno == EINTR) {
                goto rewait;
            }
            qemudLog(QEMUD_ERR, "Unexpected exit status from qemu %d pid %lu", got, (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(got) != 1) {
            qemudLog(QEMUD_WARN, "Unexpected exit status '%d', qemu probably failed", got);
        }

        return ret;
    }
}

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int qemudExtractVersion(virConnectPtr conn,
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                        struct qemud_driver *driver ATTRIBUTE_UNUSED) {
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    char *binary = NULL;
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    struct stat sb;
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    int ignored;
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    if (driver->qemuVersion > 0)
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        return 0;

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    if (!(binary = qemudLocateBinaryForArch(conn, QEMUD_VIRT_QEMU, "i686")))
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        return -1;

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    if (stat(binary, &sb) < 0) {
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        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
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                         "Cannot find QEMU binary %s: %s", binary,
                         strerror(errno));
        free(binary);
        return -1;
    }

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    if (qemudExtractVersionInfo(binary, &driver->qemuVersion, &ignored) < 0) {
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        free(binary);
        return -1;
    }

    free(binary);
    return 0;
}


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/* Parse the XML definition for a disk
 * @param disk pre-allocated & zero'd disk record
 * @param node XML nodeset to parse for disk definition
 * @return 0 on success, -1 on failure
 */
static int qemudParseDiskXML(virConnectPtr conn,
                             struct qemud_vm_disk_def *disk,
                             xmlNodePtr node) {
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    xmlNodePtr cur;
    xmlChar *device = NULL;
    xmlChar *source = NULL;
    xmlChar *target = NULL;
    xmlChar *type = NULL;
    int typ = 0;

    type = xmlGetProp(node, BAD_CAST "type");
    if (type != NULL) {
        if (xmlStrEqual(type, BAD_CAST "file"))
            typ = QEMUD_DISK_FILE;
        else if (xmlStrEqual(type, BAD_CAST "block"))
            typ = QEMUD_DISK_BLOCK;
        else {
            typ = QEMUD_DISK_FILE;
        }
        xmlFree(type);
        type = NULL;
    }

    device = xmlGetProp(node, BAD_CAST "device");
  
    cur = node->children;
    while (cur != NULL) {
        if (cur->type == XML_ELEMENT_NODE) {
            if ((source == NULL) &&
                (xmlStrEqual(cur->name, BAD_CAST "source"))) {
	
                if (typ == QEMUD_DISK_FILE)
                    source = xmlGetProp(cur, BAD_CAST "file");
                else
                    source = xmlGetProp(cur, BAD_CAST "dev");
            } else if ((target == NULL) &&
                       (xmlStrEqual(cur->name, BAD_CAST "target"))) {
                target = xmlGetProp(cur, BAD_CAST "dev");
            } else if (xmlStrEqual(cur->name, BAD_CAST "readonly")) {
                disk->readonly = 1;
            }
        }
        cur = cur->next;
    }

    if (source == NULL) {
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        qemudReportError(conn, NULL, NULL, VIR_ERR_NO_SOURCE, target ? "%s" : NULL, target);
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        goto error;
    }
    if (target == NULL) {
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        qemudReportError(conn, NULL, NULL, VIR_ERR_NO_TARGET, source ? "%s" : NULL, source);
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        goto error;
    }

    if (device &&
        !strcmp((const char *)device, "floppy") &&
        strcmp((const char *)target, "fda") &&
        strcmp((const char *)target, "fdb")) {
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        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "Invalid floppy device name: %s", target);
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        goto error;
    }
  
    if (device &&
        !strcmp((const char *)device, "cdrom") &&
        strcmp((const char *)target, "hdc")) {
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        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "Invalid cdrom device name: %s", target);
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        goto error;
    }

    if (device &&
        !strcmp((const char *)device, "cdrom"))
        disk->readonly = 1;

    if ((!device || !strcmp((const char *)device, "disk")) &&
        strcmp((const char *)target, "hda") &&
        strcmp((const char *)target, "hdb") &&
        strcmp((const char *)target, "hdc") &&
        strcmp((const char *)target, "hdd")) {
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        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "Invalid harddisk device name: %s", target);
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        goto error;
    }

    strncpy(disk->src, (const char *)source, NAME_MAX-1);
    disk->src[NAME_MAX-1] = '\0';

    strncpy(disk->dst, (const char *)target, NAME_MAX-1);
    disk->dst[NAME_MAX-1] = '\0';
    disk->type = typ;

    if (!device)
        disk->device = QEMUD_DISK_DISK;
    else if (!strcmp((const char *)device, "disk"))
        disk->device = QEMUD_DISK_DISK;
    else if (!strcmp((const char *)device, "cdrom"))
        disk->device = QEMUD_DISK_CDROM;
    else if (!strcmp((const char *)device, "floppy"))
        disk->device = QEMUD_DISK_FLOPPY;
    else {
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        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "Invalid device type: %s", device);
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        goto error;
    }

    xmlFree(device);
    xmlFree(target);
    xmlFree(source);

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    return 0;
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 error:
    if (type)
        xmlFree(type);
    if (target)
        xmlFree(target);
    if (source)
        xmlFree(source);
    if (device)
        xmlFree(device);
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    return -1;
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}

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static void qemudRandomMAC(struct qemud_vm_net_def *net) {
    net->mac[0] = 0x52;
    net->mac[1] = 0x54;
    net->mac[2] = 0x00;
    net->mac[3] = 1 + (int)(256*(rand()/(RAND_MAX+1.0)));
    net->mac[4] = 1 + (int)(256*(rand()/(RAND_MAX+1.0)));
    net->mac[5] = 1 + (int)(256*(rand()/(RAND_MAX+1.0)));
}

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/* Parse the XML definition for a network interface
 * @param net pre-allocated & zero'd net record
 * @param node XML nodeset to parse for net definition
 * @return 0 on success, -1 on failure
 */
static int qemudParseInterfaceXML(virConnectPtr conn,
                                  struct qemud_vm_net_def *net,
                                  xmlNodePtr node) {
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    xmlNodePtr cur;
    xmlChar *macaddr = NULL;
    xmlChar *type = NULL;
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    xmlChar *network = NULL;
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    xmlChar *bridge = NULL;
    xmlChar *ifname = NULL;
    xmlChar *script = NULL;
    xmlChar *address = NULL;
    xmlChar *port = NULL;
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    net->type = QEMUD_NET_USER;

    type = xmlGetProp(node, BAD_CAST "type");
    if (type != NULL) {
        if (xmlStrEqual(type, BAD_CAST "user"))
            net->type = QEMUD_NET_USER;
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        else if (xmlStrEqual(type, BAD_CAST "ethernet"))
            net->type = QEMUD_NET_ETHERNET;
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        else if (xmlStrEqual(type, BAD_CAST "server"))
            net->type = QEMUD_NET_SERVER;
        else if (xmlStrEqual(type, BAD_CAST "client"))
            net->type = QEMUD_NET_CLIENT;
        else if (xmlStrEqual(type, BAD_CAST "mcast"))
            net->type = QEMUD_NET_MCAST;
623 624
        else if (xmlStrEqual(type, BAD_CAST "network"))
            net->type = QEMUD_NET_NETWORK;
625 626
        else if (xmlStrEqual(type, BAD_CAST "bridge"))
            net->type = QEMUD_NET_BRIDGE;
D
Daniel P. Berrange 已提交
627 628 629 630 631 632 633 634 635 636 637 638
        else
            net->type = QEMUD_NET_USER;
        xmlFree(type);
        type = NULL;
    }

    cur = node->children;
    while (cur != NULL) {
        if (cur->type == XML_ELEMENT_NODE) {
            if ((macaddr == NULL) &&
                (xmlStrEqual(cur->name, BAD_CAST "mac"))) {
                macaddr = xmlGetProp(cur, BAD_CAST "address");
639 640 641 642
            } else if ((network == NULL) &&
                       (net->type == QEMUD_NET_NETWORK) &&
                       (xmlStrEqual(cur->name, BAD_CAST "source"))) {
                network = xmlGetProp(cur, BAD_CAST "network");
643 644 645
            } else if ((network == NULL) &&
                       (net->type == QEMUD_NET_BRIDGE) &&
                       (xmlStrEqual(cur->name, BAD_CAST "source"))) {
646
                bridge = xmlGetProp(cur, BAD_CAST "bridge");
647 648 649 650 651 652 653 654 655 656 657 658 659
            } else if ((network == NULL) &&
                       ((net->type == QEMUD_NET_SERVER) ||
                        (net->type == QEMUD_NET_CLIENT) ||
                        (net->type == QEMUD_NET_MCAST)) &&
                       (xmlStrEqual(cur->name, BAD_CAST "source"))) {
                address = xmlGetProp(cur, BAD_CAST "address");
                port = xmlGetProp(cur, BAD_CAST "port");
            } else if ((ifname == NULL) &&
                       ((net->type == QEMUD_NET_NETWORK) ||
                        (net->type == QEMUD_NET_ETHERNET) ||
                        (net->type == QEMUD_NET_BRIDGE)) &&
                       xmlStrEqual(cur->name, BAD_CAST "target")) {
                ifname = xmlGetProp(cur, BAD_CAST "dev");
660 661 662 663 664
                if (STREQLEN("vnet", (const char*)ifname, 4)) {
                    /* An auto-generated target name, blank it out */
                    xmlFree(ifname);
                    ifname = NULL;
                }
665 666 667 668
            } else if ((script == NULL) &&
                       (net->type == QEMUD_NET_ETHERNET) &&
                       xmlStrEqual(cur->name, BAD_CAST "script")) {
                script = xmlGetProp(cur, BAD_CAST "path");
D
Daniel P. Berrange 已提交
669 670 671 672 673 674
            }
        }
        cur = cur->next;
    }

    if (macaddr) {
675
        unsigned int mac[6];
D
Daniel P. Berrange 已提交
676
        sscanf((const char *)macaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
677 678 679 680 681 682 683 684 685 686 687 688
               (unsigned int*)&mac[0],
               (unsigned int*)&mac[1],
               (unsigned int*)&mac[2],
               (unsigned int*)&mac[3],
               (unsigned int*)&mac[4],
               (unsigned int*)&mac[5]);
        net->mac[0] = mac[0];
        net->mac[1] = mac[1];
        net->mac[2] = mac[2];
        net->mac[3] = mac[3];
        net->mac[4] = mac[4];
        net->mac[5] = mac[5];
D
Daniel P. Berrange 已提交
689 690

        xmlFree(macaddr);
691 692 693
        macaddr = NULL;
    } else {
        qemudRandomMAC(net);
D
Daniel P. Berrange 已提交
694 695
    }

696 697 698 699
    if (net->type == QEMUD_NET_NETWORK) {
        int len;

        if (network == NULL) {
700
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
701 702
                             "No <source> 'network' attribute specified with <interface type='network'/>");
            goto error;
703
        } else if ((len = xmlStrlen(network)) >= (QEMUD_MAX_NAME_LEN-1)) {
704
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
705 706 707 708 709 710 711
                             "Network name '%s' too long", network);
            goto error;
        } else {
            strncpy(net->dst.network.name, (char *)network, len);
            net->dst.network.name[len] = '\0';
        }

712
        if (network) {
713
            xmlFree(network);
714 715 716 717 718
            network = NULL;
        }

        if (ifname != NULL) {
            if ((len = xmlStrlen(ifname)) >= (BR_IFNAME_MAXLEN-1)) {
719
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
720 721 722 723 724 725 726 727 728 729 730
                                 "TAP interface name '%s' is too long", ifname);
                goto error;
            } else {
                strncpy(net->dst.network.ifname, (char *)ifname, len);
                net->dst.network.ifname[len] = '\0';
            }
            xmlFree(ifname);
            ifname = NULL;
        }
    } else if (net->type == QEMUD_NET_ETHERNET) {
        int len;
731

732 733
        if (script != NULL) {
            if ((len = xmlStrlen(script)) >= (PATH_MAX-1)) {
734
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
735 736 737 738 739 740 741 742 743 744 745
                                 "TAP script path '%s' is too long", script);
                goto error;
            } else {
                strncpy(net->dst.ethernet.script, (char *)script, len);
                net->dst.ethernet.script[len] = '\0';
            }
            xmlFree(script);
            script = NULL;
        }
        if (ifname != NULL) {
            if ((len = xmlStrlen(ifname)) >= (BR_IFNAME_MAXLEN-1)) {
746
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
747
                                 "TAP interface name '%s' is too long", ifname);
748 749
                goto error;
            } else {
750 751
                strncpy(net->dst.ethernet.ifname, (char *)ifname, len);
                net->dst.ethernet.ifname[len] = '\0';
752
            }
753 754 755 756 757 758
            xmlFree(ifname);
        }
    } else if (net->type == QEMUD_NET_BRIDGE) {
        int len;

        if (bridge == NULL) {
759
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
760 761 762
                             "No <source> 'dev' attribute specified with <interface type='bridge'/>");
            goto error;
        } else if ((len = xmlStrlen(bridge)) >= (BR_IFNAME_MAXLEN-1)) {
763
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
764 765 766 767 768
                             "TAP bridge path '%s' is too long", bridge);
            goto error;
        } else {
            strncpy(net->dst.bridge.brname, (char *)bridge, len);
            net->dst.bridge.brname[len] = '\0';
769
        }
770 771 772 773 774 775

        xmlFree(bridge);
        bridge = NULL;

        if (ifname != NULL) {
            if ((len = xmlStrlen(ifname)) >= (BR_IFNAME_MAXLEN-1)) {
776
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
777 778 779 780 781 782 783 784 785 786 787
                                 "TAP interface name '%s' is too long", ifname);
                goto error;
            } else {
                strncpy(net->dst.bridge.ifname, (char *)ifname, len);
                net->dst.bridge.ifname[len] = '\0';
            }
            xmlFree(ifname);
        }
    } else if (net->type == QEMUD_NET_CLIENT ||
               net->type == QEMUD_NET_SERVER ||
               net->type == QEMUD_NET_MCAST) {
788
        int len = 0;
789 790 791
        char *ret;

        if (port == NULL) {
792
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
793 794 795 796 797
                             "No <source> 'port' attribute specified with socket interface");
            goto error;
        }
        if (!(net->dst.socket.port = strtol((char*)port, &ret, 10)) &&
            ret == (char*)port) {
798
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
799 800 801 802 803 804 805 806 807
                             "Cannot parse <source> 'port' attribute with socket interface");
            goto error;
        }
        xmlFree(port);
        port = NULL;

        if (address == NULL) {
            if (net->type == QEMUD_NET_CLIENT ||
                net->type == QEMUD_NET_MCAST) {
808
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
809 810 811 812
                                 "No <source> 'address' attribute specified with socket interface");
                goto error;
            }
        } else if ((len = xmlStrlen(address)) >= (BR_INET_ADDR_MAXLEN)) {
813
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
814 815 816 817 818 819 820 821 822 823
                             "IP address '%s' is too long", address);
            goto error;
        }
        if (address == NULL) {
            net->dst.socket.address[0] = '\0';
        } else {
            strncpy(net->dst.socket.address, (char*)address,len);
            net->dst.socket.address[len] = '\0';
        }
        xmlFree(address);
824 825
    }

D
Daniel P. Berrange 已提交
826
    return 0;
827 828 829 830

 error:
    if (network)
        xmlFree(network);
831 832 833 834 835 836 837 838 839 840
    if (address)
        xmlFree(address);
    if (port)
        xmlFree(port);
    if (ifname)
        xmlFree(ifname);
    if (script)
        xmlFree(script);
    if (bridge)
        xmlFree(bridge);
D
Daniel P. Berrange 已提交
841
    return -1;
D
Daniel P. Berrange 已提交
842 843 844
}


845
/* Parse the XML definition for a network interface */
D
Daniel P. Berrange 已提交
846 847 848
static int qemudParseInputXML(virConnectPtr conn,
                              struct qemud_vm_input_def *input,
                              xmlNodePtr node) {
849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893
    xmlChar *type = NULL;
    xmlChar *bus = NULL;

    type = xmlGetProp(node, BAD_CAST "type");
    bus = xmlGetProp(node, BAD_CAST "bus");

    if (!type) {
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "no type provide for input device");
        goto error;
    }

    if (!strcmp((const char *)type, "mouse")) {
        input->type = QEMU_INPUT_TYPE_MOUSE;
    } else if (!strcmp((const char *)type, "tablet")) {
        input->type = QEMU_INPUT_TYPE_TABLET;
    } else {
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "unsupported input device type %s", (const char*)type);
        goto error;
    }

    if (bus) {
        if (!strcmp((const char*)bus, "ps2")) { /* Only allow mouse */
            if (input->type == QEMU_INPUT_TYPE_TABLET) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "ps2 bus does not support %s input device", (const char*)type);
                goto error;
            }
            input->bus = QEMU_INPUT_BUS_PS2;
        } else if (!strcmp((const char *)bus, "usb")) { /* Allow mouse & keyboard */
            input->bus = QEMU_INPUT_BUS_USB;
        } else {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "unsupported input bus %s", (const char*)bus);
            goto error;
        }
    } else {
        if (input->type == QEMU_INPUT_TYPE_MOUSE)
            input->bus = QEMU_INPUT_BUS_PS2;
        else
            input->bus = QEMU_INPUT_BUS_USB;
    }

    if (type)
        xmlFree(type);
    if (bus)
        xmlFree(bus);

D
Daniel P. Berrange 已提交
894
    return 0;
895 896 897 898 899 900 901

 error:
    if (type)
        xmlFree(type);
    if (bus)
        xmlFree(bus);

D
Daniel P. Berrange 已提交
902
    return -1;
903 904 905
}


D
Daniel P. Berrange 已提交
906 907 908 909
/*
 * Parses a libvirt XML definition of a guest, and populates the
 * the qemud_vm struct with matching data about the guests config
 */
910 911
static struct qemud_vm_def *qemudParseXML(virConnectPtr conn,
                                          struct qemud_driver *driver,
912
                                          xmlDocPtr xml) {
D
Daniel P. Berrange 已提交
913 914 915 916 917 918
    xmlNodePtr root = NULL;
    xmlChar *prop = NULL;
    xmlXPathContextPtr ctxt = NULL;
    xmlXPathObjectPtr obj = NULL;
    char *conv = NULL;
    int i;
919 920
    struct qemud_vm_def *def;

921
    if (!(def = calloc(1, sizeof(*def)))) {
922
        qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "xmlXPathContext");
923 924
        return NULL;
    }
D
Daniel P. Berrange 已提交
925 926 927 928

    /* Prepare parser / xpath context */
    root = xmlDocGetRootElement(xml);
    if ((root == NULL) || (!xmlStrEqual(root->name, BAD_CAST "domain"))) {
929
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "incorrect root element");
D
Daniel P. Berrange 已提交
930 931 932 933 934
        goto error;
    }

    ctxt = xmlXPathNewContext(xml);
    if (ctxt == NULL) {
935
        qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "xmlXPathContext");
D
Daniel P. Berrange 已提交
936 937 938 939 940 941
        goto error;
    }


    /* Find out what type of QEMU virtualization to use */
    if (!(prop = xmlGetProp(root, BAD_CAST "type"))) {
942
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "missing domain type attribute");
D
Daniel P. Berrange 已提交
943 944 945 946
        goto error;
    }

    if (!strcmp((char *)prop, "qemu"))
947
        def->virtType = QEMUD_VIRT_QEMU;
D
Daniel P. Berrange 已提交
948
    else if (!strcmp((char *)prop, "kqemu"))
949
        def->virtType = QEMUD_VIRT_KQEMU;
D
Daniel P. Berrange 已提交
950
    else if (!strcmp((char *)prop, "kvm"))
951
        def->virtType = QEMUD_VIRT_KVM;
D
Daniel P. Berrange 已提交
952
    else {
953
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "invalid domain type attribute");
D
Daniel P. Berrange 已提交
954 955 956 957 958 959 960 961 962 963
        goto error;
    }
    free(prop);
    prop = NULL;


    /* Extract domain name */
    obj = xmlXPathEval(BAD_CAST "string(/domain/name[1])", ctxt);
    if ((obj == NULL) || (obj->type != XPATH_STRING) ||
        (obj->stringval == NULL) || (obj->stringval[0] == 0)) {
964
        qemudReportError(conn, NULL, NULL, VIR_ERR_NO_NAME, NULL);
D
Daniel P. Berrange 已提交
965 966 967
        goto error;
    }
    if (strlen((const char *)obj->stringval) >= (QEMUD_MAX_NAME_LEN-1)) {
968
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "domain name length too long");
D
Daniel P. Berrange 已提交
969 970
        goto error;
    }
971
    strcpy(def->name, (const char *)obj->stringval);
D
Daniel P. Berrange 已提交
972 973 974 975 976 977 978
    xmlXPathFreeObject(obj);


    /* Extract domain uuid */
    obj = xmlXPathEval(BAD_CAST "string(/domain/uuid[1])", ctxt);
    if ((obj == NULL) || (obj->type != XPATH_STRING) ||
        (obj->stringval == NULL) || (obj->stringval[0] == 0)) {
979
        int err;
D
Daniel P. Berrange 已提交
980
        if ((err = virUUIDGenerate(def->uuid))) {
981
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
982 983 984
                             "Failed to generate UUID: %s", strerror(err));
            goto error;
        }
D
Daniel P. Berrange 已提交
985
    } else if (virUUIDParse((const char *)obj->stringval, def->uuid) < 0) {
986
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "malformed uuid element");
D
Daniel P. Berrange 已提交
987 988 989 990 991 992 993 994 995
        goto error;
    }
    xmlXPathFreeObject(obj);


    /* Extract domain memory */
    obj = xmlXPathEval(BAD_CAST "string(/domain/memory[1])", ctxt);
    if ((obj == NULL) || (obj->type != XPATH_STRING) ||
        (obj->stringval == NULL) || (obj->stringval[0] == 0)) {
996
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "missing memory element");
D
Daniel P. Berrange 已提交
997 998 999
        goto error;
    } else {
        conv = NULL;
1000
        def->maxmem = strtoll((const char*)obj->stringval, &conv, 10);
D
Daniel P. Berrange 已提交
1001
        if (conv == (const char*)obj->stringval) {
1002
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "malformed memory information");
D
Daniel P. Berrange 已提交
1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013
            goto error;
        }
    }
    if (obj)
        xmlXPathFreeObject(obj);


    /* Extract domain memory */
    obj = xmlXPathEval(BAD_CAST "string(/domain/currentMemory[1])", ctxt);
    if ((obj == NULL) || (obj->type != XPATH_STRING) ||
        (obj->stringval == NULL) || (obj->stringval[0] == 0)) {
1014
        def->memory = def->maxmem;
D
Daniel P. Berrange 已提交
1015 1016
    } else {
        conv = NULL;
1017 1018 1019
        def->memory = strtoll((const char*)obj->stringval, &conv, 10);
        if (def->memory > def->maxmem)
            def->memory = def->maxmem;
D
Daniel P. Berrange 已提交
1020
        if (conv == (const char*)obj->stringval) {
1021
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "malformed memory information");
D
Daniel P. Berrange 已提交
1022 1023 1024 1025 1026 1027 1028 1029 1030 1031
            goto error;
        }
    }
    if (obj)
        xmlXPathFreeObject(obj);

    /* Extract domain vcpu info */
    obj = xmlXPathEval(BAD_CAST "string(/domain/vcpu[1])", ctxt);
    if ((obj == NULL) || (obj->type != XPATH_STRING) ||
        (obj->stringval == NULL) || (obj->stringval[0] == 0)) {
1032
        def->vcpus = 1;
D
Daniel P. Berrange 已提交
1033 1034
    } else {
        conv = NULL;
1035
        def->vcpus = strtoll((const char*)obj->stringval, &conv, 10);
D
Daniel P. Berrange 已提交
1036
        if (conv == (const char*)obj->stringval) {
1037
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "malformed vcpu information");
D
Daniel P. Berrange 已提交
1038 1039 1040 1041 1042 1043 1044 1045 1046 1047
            goto error;
        }
    }
    if (obj)
        xmlXPathFreeObject(obj);

    /* See if ACPI feature is requested */
    obj = xmlXPathEval(BAD_CAST "/domain/features/acpi", ctxt);
    if ((obj != NULL) && (obj->type == XPATH_NODESET) &&
        (obj->nodesetval != NULL) && (obj->nodesetval->nodeNr == 1)) {
1048
        def->features |= QEMUD_FEATURE_ACPI;
D
Daniel P. Berrange 已提交
1049
    }
1050
    xmlXPathFreeObject(obj);
D
Daniel P. Berrange 已提交
1051

D
Daniel P. Berrange 已提交
1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066

    /* See if we disable reboots */
    obj = xmlXPathEval(BAD_CAST "string(/domain/on_reboot)", ctxt);
    if ((obj == NULL) || (obj->type != XPATH_STRING) ||
        (obj->stringval == NULL) || (obj->stringval[0] == 0)) {
        def->noReboot = 0;
    } else {
        if (!strcmp((char*)obj->stringval, "destroy"))
            def->noReboot = 1;
        else
            def->noReboot = 0;
    }
    if (obj)
        xmlXPathFreeObject(obj);

1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080
    /* See if we set clock to localtime */
    obj = xmlXPathEval(BAD_CAST "string(/domain/clock/@offset)", ctxt);
    if ((obj == NULL) || (obj->type != XPATH_STRING) ||
        (obj->stringval == NULL) || (obj->stringval[0] == 0)) {
        def->localtime = 0;
    } else {
        if (!strcmp((char*)obj->stringval, "localtime"))
            def->localtime = 1;
        else
            def->localtime = 0;
    }
    if (obj)
        xmlXPathFreeObject(obj);

D
Daniel P. Berrange 已提交
1081

D
Daniel P. Berrange 已提交
1082 1083 1084 1085
    /* Extract OS type info */
    obj = xmlXPathEval(BAD_CAST "string(/domain/os/type[1])", ctxt);
    if ((obj == NULL) || (obj->type != XPATH_STRING) ||
        (obj->stringval == NULL) || (obj->stringval[0] == 0)) {
1086
        qemudReportError(conn, NULL, NULL, VIR_ERR_OS_TYPE, NULL);
D
Daniel P. Berrange 已提交
1087 1088 1089
        goto error;
    }
    if (strcmp((const char *)obj->stringval, "hvm")) {
1090
        qemudReportError(conn, NULL, NULL, VIR_ERR_OS_TYPE, "%s", obj->stringval);
D
Daniel P. Berrange 已提交
1091 1092
        goto error;
    }
1093
    strcpy(def->os.type, (const char *)obj->stringval);
D
Daniel P. Berrange 已提交
1094 1095 1096 1097 1098 1099 1100 1101
    xmlXPathFreeObject(obj);


    obj = xmlXPathEval(BAD_CAST "string(/domain/os/type[1]/@arch)", ctxt);
    if ((obj == NULL) || (obj->type != XPATH_STRING) ||
        (obj->stringval == NULL) || (obj->stringval[0] == 0)) {
        const char *defaultArch = qemudDefaultArch();
        if (strlen(defaultArch) >= (QEMUD_OS_TYPE_MAX_LEN-1)) {
1102
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "architecture type too long");
D
Daniel P. Berrange 已提交
1103 1104
            goto error;
        }
1105
        strcpy(def->os.arch, defaultArch);
D
Daniel P. Berrange 已提交
1106 1107
    } else {
        if (strlen((const char *)obj->stringval) >= (QEMUD_OS_TYPE_MAX_LEN-1)) {
1108
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "architecture type too long");
D
Daniel P. Berrange 已提交
1109 1110
            goto error;
        }
1111
        strcpy(def->os.arch, (const char *)obj->stringval);
D
Daniel P. Berrange 已提交
1112 1113 1114 1115 1116 1117 1118
    }
    if (obj)
        xmlXPathFreeObject(obj);

    obj = xmlXPathEval(BAD_CAST "string(/domain/os/type[1]/@machine)", ctxt);
    if ((obj == NULL) || (obj->type != XPATH_STRING) ||
        (obj->stringval == NULL) || (obj->stringval[0] == 0)) {
1119
        const char *defaultMachine = qemudDefaultMachineForArch(def->os.arch);
1120 1121 1122 1123
        if (!defaultMachine) {
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "unsupported arch %s", def->os.arch);
            goto error;
        }
D
Daniel P. Berrange 已提交
1124
        if (strlen(defaultMachine) >= (QEMUD_OS_MACHINE_MAX_LEN-1)) {
1125
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "machine type too long");
D
Daniel P. Berrange 已提交
1126 1127
            goto error;
        }
1128
        strcpy(def->os.machine, defaultMachine);
D
Daniel P. Berrange 已提交
1129 1130
    } else {
        if (strlen((const char *)obj->stringval) >= (QEMUD_OS_MACHINE_MAX_LEN-1)) {
1131
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "architecture type too long");
D
Daniel P. Berrange 已提交
1132 1133
            goto error;
        }
1134
        strcpy(def->os.machine, (const char *)obj->stringval);
D
Daniel P. Berrange 已提交
1135 1136 1137 1138 1139 1140 1141 1142 1143
    }
    if (obj)
        xmlXPathFreeObject(obj);


    obj = xmlXPathEval(BAD_CAST "string(/domain/os/kernel[1])", ctxt);
    if ((obj != NULL) && (obj->type == XPATH_STRING) &&
        (obj->stringval != NULL) && (obj->stringval[0] != 0)) {
        if (strlen((const char *)obj->stringval) >= (PATH_MAX-1)) {
1144
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "kernel path too long");
D
Daniel P. Berrange 已提交
1145 1146
            goto error;
        }
1147
        strcpy(def->os.kernel, (const char *)obj->stringval);
D
Daniel P. Berrange 已提交
1148 1149 1150 1151 1152 1153 1154 1155 1156
    }
    if (obj)
        xmlXPathFreeObject(obj);


    obj = xmlXPathEval(BAD_CAST "string(/domain/os/initrd[1])", ctxt);
    if ((obj != NULL) && (obj->type == XPATH_STRING) &&
        (obj->stringval != NULL) && (obj->stringval[0] != 0)) {
        if (strlen((const char *)obj->stringval) >= (PATH_MAX-1)) {
1157
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "initrd path too long");
D
Daniel P. Berrange 已提交
1158 1159
            goto error;
        }
1160
        strcpy(def->os.initrd, (const char *)obj->stringval);
D
Daniel P. Berrange 已提交
1161 1162 1163 1164 1165 1166 1167 1168 1169
    }
    if (obj)
        xmlXPathFreeObject(obj);


    obj = xmlXPathEval(BAD_CAST "string(/domain/os/cmdline[1])", ctxt);
    if ((obj != NULL) && (obj->type == XPATH_STRING) &&
        (obj->stringval != NULL) && (obj->stringval[0] != 0)) {
        if (strlen((const char *)obj->stringval) >= (PATH_MAX-1)) {
1170
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "cmdline arguments too long");
D
Daniel P. Berrange 已提交
1171 1172
            goto error;
        }
1173
        strcpy(def->os.cmdline, (const char *)obj->stringval);
D
Daniel P. Berrange 已提交
1174 1175 1176 1177 1178 1179 1180 1181 1182 1183
    }
    if (obj)
        xmlXPathFreeObject(obj);


    /* analysis of the disk devices */
    obj = xmlXPathEval(BAD_CAST "/domain/os/boot", ctxt);
    if ((obj != NULL) && (obj->type == XPATH_NODESET) &&
        (obj->nodesetval != NULL) && (obj->nodesetval->nodeNr >= 0)) {
        for (i = 0; i < obj->nodesetval->nodeNr && i < QEMUD_MAX_BOOT_DEVS ; i++) {
1184 1185
            if (!(prop = xmlGetProp(obj->nodesetval->nodeTab[i], BAD_CAST "dev")))
                continue;
D
Daniel P. Berrange 已提交
1186
            if (!strcmp((char *)prop, "hd")) {
1187
                def->os.bootDevs[def->os.nBootDevs++] = QEMUD_BOOT_DISK;
D
Daniel P. Berrange 已提交
1188
            } else if (!strcmp((char *)prop, "fd")) {
1189
                def->os.bootDevs[def->os.nBootDevs++] = QEMUD_BOOT_FLOPPY;
D
Daniel P. Berrange 已提交
1190
            } else if (!strcmp((char *)prop, "cdrom")) {
1191
                def->os.bootDevs[def->os.nBootDevs++] = QEMUD_BOOT_CDROM;
1192
            } else if (!strcmp((char *)prop, "network")) {
1193
                def->os.bootDevs[def->os.nBootDevs++] = QEMUD_BOOT_NET;
D
Daniel P. Berrange 已提交
1194 1195 1196
            } else {
                goto error;
            }
1197
            xmlFree(prop);
1198
            prop = NULL;
D
Daniel P. Berrange 已提交
1199 1200 1201
        }
    }
    xmlXPathFreeObject(obj);
1202 1203 1204
    if (def->os.nBootDevs == 0) {
        def->os.nBootDevs = 1;
        def->os.bootDevs[0] = QEMUD_BOOT_DISK;
D
Daniel P. Berrange 已提交
1205 1206 1207 1208 1209 1210
    }


    obj = xmlXPathEval(BAD_CAST "string(/domain/devices/emulator[1])", ctxt);
    if ((obj == NULL) || (obj->type != XPATH_STRING) ||
        (obj->stringval == NULL) || (obj->stringval[0] == 0)) {
1211
        char *tmp = qemudLocateBinaryForArch(conn, def->virtType, def->os.arch);
D
Daniel P. Berrange 已提交
1212 1213 1214
        if (!tmp) {
            goto error;
        }
1215
        strcpy(def->os.binary, tmp);
D
Daniel P. Berrange 已提交
1216 1217 1218
        free(tmp);
    } else {
        if (strlen((const char *)obj->stringval) >= (PATH_MAX-1)) {
1219
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "emulator path too long");
D
Daniel P. Berrange 已提交
1220 1221
            goto error;
        }
1222
        strcpy(def->os.binary, (const char *)obj->stringval);
D
Daniel P. Berrange 已提交
1223 1224 1225 1226 1227 1228 1229
    }
    if (obj)
        xmlXPathFreeObject(obj);

    obj = xmlXPathEval(BAD_CAST "/domain/devices/graphics", ctxt);
    if ((obj == NULL) || (obj->type != XPATH_NODESET) ||
        (obj->nodesetval == NULL) || (obj->nodesetval->nodeNr == 0)) {
1230
        def->graphicsType = QEMUD_GRAPHICS_NONE;
1231
    } else if ((prop = xmlGetProp(obj->nodesetval->nodeTab[0], BAD_CAST "type"))) {
D
Daniel P. Berrange 已提交
1232
        if (!strcmp((char *)prop, "vnc")) {
1233
            xmlChar *vncport, *vnclisten;
1234
            def->graphicsType = QEMUD_GRAPHICS_VNC;
1235 1236
            vncport = xmlGetProp(obj->nodesetval->nodeTab[0], BAD_CAST "port");
            if (vncport) {
D
Daniel P. Berrange 已提交
1237
                conv = NULL;
1238
                def->vncPort = strtoll((const char*)vncport, &conv, 10);
D
Daniel P. Berrange 已提交
1239
            } else {
1240
                def->vncPort = -1;
D
Daniel P. Berrange 已提交
1241
            }
1242 1243 1244 1245
            vnclisten = xmlGetProp(obj->nodesetval->nodeTab[0], BAD_CAST "listen");
            if (vnclisten && *vnclisten)
                strncpy(def->vncListen, (char *)vnclisten, BR_INET_ADDR_MAXLEN-1);
            else
D
Daniel P. Berrange 已提交
1246
                strcpy(def->vncListen, driver->vncListen);
1247 1248 1249
            def->vncListen[BR_INET_ADDR_MAXLEN-1] = '\0';
            xmlFree(vncport);
            xmlFree(vnclisten);
D
Daniel P. Berrange 已提交
1250
        } else if (!strcmp((char *)prop, "sdl")) {
1251
            def->graphicsType = QEMUD_GRAPHICS_SDL;
D
Daniel P. Berrange 已提交
1252
        } else {
1253
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "Unsupported graphics type %s", prop);
D
Daniel P. Berrange 已提交
1254 1255
            goto error;
        }
1256
        xmlFree(prop);
1257
        prop = NULL;
D
Daniel P. Berrange 已提交
1258
    }
1259
    xmlXPathFreeObject(obj);
D
Daniel P. Berrange 已提交
1260 1261 1262 1263 1264

    /* analysis of the disk devices */
    obj = xmlXPathEval(BAD_CAST "/domain/devices/disk", ctxt);
    if ((obj != NULL) && (obj->type == XPATH_NODESET) &&
        (obj->nodesetval != NULL) && (obj->nodesetval->nodeNr >= 0)) {
1265
        struct qemud_vm_disk_def *prev = NULL;
D
Daniel P. Berrange 已提交
1266
        for (i = 0; i < obj->nodesetval->nodeNr; i++) {
1267
            struct qemud_vm_disk_def *disk = calloc(1, sizeof(*disk));
D
Daniel P. Berrange 已提交
1268 1269 1270 1271 1272 1273
            if (!disk) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "disk");
                goto error;
            }
            if (qemudParseDiskXML(conn, disk, obj->nodesetval->nodeTab[i]) < 0) {
                free(disk);
D
Daniel P. Berrange 已提交
1274 1275
                goto error;
            }
1276
            def->ndisks++;
1277 1278 1279 1280 1281 1282 1283
            disk->next = NULL;
            if (i == 0) {
                def->disks = disk;
            } else {
                prev->next = disk;
            }
            prev = disk;
D
Daniel P. Berrange 已提交
1284 1285 1286 1287 1288 1289 1290 1291 1292
        }
    }
    xmlXPathFreeObject(obj);


    /* analysis of the network devices */
    obj = xmlXPathEval(BAD_CAST "/domain/devices/interface", ctxt);
    if ((obj != NULL) && (obj->type == XPATH_NODESET) &&
        (obj->nodesetval != NULL) && (obj->nodesetval->nodeNr >= 0)) {
1293
        struct qemud_vm_net_def *prev = NULL;
D
Daniel P. Berrange 已提交
1294
        for (i = 0; i < obj->nodesetval->nodeNr; i++) {
1295
            struct qemud_vm_net_def *net = calloc(1, sizeof(*net));
D
Daniel P. Berrange 已提交
1296 1297 1298 1299 1300 1301
            if (!net) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "net");
                goto error;
            }
            if (qemudParseInterfaceXML(conn, net, obj->nodesetval->nodeTab[i]) < 0) {
                free(net);
D
Daniel P. Berrange 已提交
1302 1303
                goto error;
            }
1304
            def->nnets++;
1305 1306 1307 1308 1309 1310 1311
            net->next = NULL;
            if (i == 0) {
                def->nets = net;
            } else {
                prev->next = net;
            }
            prev = net;
D
Daniel P. Berrange 已提交
1312 1313 1314
        }
    }
    xmlXPathFreeObject(obj);
1315 1316 1317 1318 1319 1320 1321

    /* analysis of the input devices */
    obj = xmlXPathEval(BAD_CAST "/domain/devices/input", ctxt);
    if ((obj != NULL) && (obj->type == XPATH_NODESET) &&
        (obj->nodesetval != NULL) && (obj->nodesetval->nodeNr >= 0)) {
        struct qemud_vm_input_def *prev = NULL;
        for (i = 0; i < obj->nodesetval->nodeNr; i++) {
1322
            struct qemud_vm_input_def *input = calloc(1, sizeof(*input));
D
Daniel P. Berrange 已提交
1323 1324 1325 1326 1327 1328
            if (!input) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "input");
                goto error;
            }
            if (qemudParseInputXML(conn, input, obj->nodesetval->nodeTab[i]) < 0) {
                free(input);
1329 1330 1331 1332 1333 1334 1335 1336 1337 1338
                goto error;
            }
            /* Mouse + PS/2 is implicit with graphics, so don't store it */
            if (input->bus == QEMU_INPUT_BUS_PS2 &&
                input->type == QEMU_INPUT_TYPE_MOUSE) {
                free(input);
                continue;
            }
            def->ninputs++;
            input->next = NULL;
1339
            if (def->inputs == NULL) {
1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361
                def->inputs = input;
            } else {
                prev->next = input;
            }
            prev = input;
        }
    }
    xmlXPathFreeObject(obj);
    obj = NULL;

    /* If graphics are enabled, there's an implicit PS2 mouse */
    if (def->graphicsType != QEMUD_GRAPHICS_NONE) {
        int hasPS2mouse = 0;
        struct qemud_vm_input_def *input = def->inputs;
        while (input) {
            if (input->type == QEMU_INPUT_TYPE_MOUSE &&
                input->bus == QEMU_INPUT_BUS_PS2)
                hasPS2mouse = 1;
            input = input->next;
        }

        if (!hasPS2mouse) {
1362
            input = calloc(1, sizeof(*input));
1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374
            if (!input) {
                qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "input");
                goto error;
            }
            input->type = QEMU_INPUT_TYPE_MOUSE;
            input->bus = QEMU_INPUT_BUS_PS2;
            input->next = def->inputs;
            def->inputs = input;
            def->ninputs++;
        }
    }

D
Daniel P. Berrange 已提交
1375 1376
    xmlXPathFreeContext(ctxt);

1377
    return def;
D
Daniel P. Berrange 已提交
1378 1379 1380 1381 1382 1383 1384 1385

 error:
    if (prop)
        free(prop);
    if (obj)
        xmlXPathFreeObject(obj);
    if (ctxt)
        xmlXPathFreeContext(ctxt);
1386 1387
    qemudFreeVMDef(def);
    return NULL;
D
Daniel P. Berrange 已提交
1388 1389 1390
}


1391
static char *
1392 1393
qemudNetworkIfaceConnect(virConnectPtr conn,
                         struct qemud_driver *driver,
1394
                         struct qemud_vm *vm,
1395 1396
                         struct qemud_vm_net_def *net,
                         int vlan)
1397
{
1398 1399 1400
    struct qemud_network *network = NULL;
    char *brname;
    char *ifname;
1401 1402 1403 1404 1405 1406
    char tapfdstr[4+3+32+7];
    char *retval = NULL;
    int err;
    int tapfd = -1;
    int *tapfds;

1407
    if (net->type == QEMUD_NET_NETWORK) {
1408
        if (!(network = qemudFindNetworkByName(driver, net->dst.network.name))) {
1409
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
1410 1411 1412
                             "Network '%s' not found", net->dst.network.name);
            goto error;
        } else if (network->bridge[0] == '\0') {
1413
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
1414 1415 1416 1417 1418
                             "Network '%s' not active", net->dst.network.name);
            goto error;
        }
        brname = network->bridge;
        if (net->dst.network.ifname[0] == '\0' ||
1419
            STREQLEN(net->dst.network.ifname, "vnet", 4) ||
1420 1421 1422 1423 1424 1425 1426
            strchr(net->dst.network.ifname, '%')) {
            strcpy(net->dst.network.ifname, "vnet%d");
        }
        ifname = net->dst.network.ifname;
    } else if (net->type == QEMUD_NET_BRIDGE) {
        brname = net->dst.bridge.brname;
        if (net->dst.bridge.ifname[0] == '\0' ||
1427
            STREQLEN(net->dst.bridge.ifname, "vnet", 4) ||
1428 1429 1430 1431 1432
            strchr(net->dst.bridge.ifname, '%')) {
            strcpy(net->dst.bridge.ifname, "vnet%d");
        }
        ifname = net->dst.bridge.ifname;
    } else {
1433
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
1434
                         "Network type %d is not supported", net->type);
1435 1436 1437
        goto error;
    }

1438
    if (!driver->brctl && (err = brInit(&driver->brctl))) {
1439
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
1440 1441 1442 1443
                         "cannot initialize bridge support: %s", strerror(err));
        goto error;
    }

1444
    if ((err = brAddTap(driver->brctl, brname,
1445
                        ifname, BR_IFNAME_MAXLEN, &tapfd))) {
1446
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
1447
                         "Failed to add tap interface '%s' to bridge '%s' : %s",
1448
                         ifname, brname, strerror(err));
1449 1450 1451
        goto error;
    }

1452
    snprintf(tapfdstr, sizeof(tapfdstr), "tap,fd=%d,script=,vlan=%d", tapfd, vlan);
1453 1454 1455 1456

    if (!(retval = strdup(tapfdstr)))
        goto no_memory;

1457
    if (!(tapfds = realloc(vm->tapfds, sizeof(*tapfds) * (vm->ntapfds+2))))
1458 1459 1460 1461 1462 1463 1464 1465 1466
        goto no_memory;

    vm->tapfds = tapfds;
    vm->tapfds[vm->ntapfds++] = tapfd;
    vm->tapfds[vm->ntapfds]   = -1;

    return retval;

 no_memory:
1467
    qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "tapfds");
1468 1469 1470 1471 1472 1473 1474 1475
 error:
    if (retval)
        free(retval);
    if (tapfd != -1)
        close(tapfd);
    return NULL;
}

D
Daniel P. Berrange 已提交
1476 1477 1478 1479
/*
 * Constructs a argv suitable for launching qemu with config defined
 * for a given virtual machine.
 */
1480 1481
int qemudBuildCommandLine(virConnectPtr conn,
                          struct qemud_driver *driver,
D
Daniel P. Berrange 已提交
1482
                          struct qemud_vm *vm,
1483 1484
                          char ***argv) {
    int len, n = -1, i;
D
Daniel P. Berrange 已提交
1485 1486 1487
    char memory[50];
    char vcpus[50];
    char boot[QEMUD_MAX_BOOT_DEVS+1];
1488
    struct stat sb;
1489 1490
    struct qemud_vm_disk_def *disk = vm->def->disks;
    struct qemud_vm_net_def *net = vm->def->nets;
1491
    struct qemud_vm_input_def *input = vm->def->inputs;
1492 1493
    struct utsname ut;
    int disableKQEMU = 0;
D
Daniel P. Berrange 已提交
1494

1495 1496 1497 1498 1499 1500 1501 1502
    /* Make sure the binary we are about to try exec'ing exists.
     * Technically we could catch the exec() failure, but that's
     * in a sub-process so its hard to feed back a useful error
     */
    if (stat(vm->def->os.binary, &sb) < 0) {
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
                         "Cannot find QEMU binary %s: %s", vm->def->os.binary,
                         strerror(errno));
1503
        return -1;
1504 1505 1506 1507 1508 1509 1510 1511
    }

    if (vm->qemuVersion == 0) {
        if (qemudExtractVersionInfo(vm->def->os.binary,
                                    &(vm->qemuVersion),
                                    &(vm->qemuCmdFlags)) < 0)
            return -1;
    }
1512

1513 1514
    uname(&ut);

D
Daniel P. Berrange 已提交
1515
    /* Nasty hack make i?86 look like i686 to simplify next comparison */
1516 1517 1518 1519
    if (ut.machine[0] == 'i' &&
        ut.machine[2] == '8' &&
        ut.machine[3] == '6' &&
        !ut.machine[4])
D
Daniel P. Berrange 已提交
1520
        ut.machine[1] = '6';
1521 1522 1523 1524 1525 1526

    /* Need to explicitly disable KQEMU if
     * 1. Arch matches host arch
     * 2. Guest is 'qemu'
     * 3. The qemu binary has the -no-kqemu flag
     */
1527
    if ((vm->qemuCmdFlags & QEMUD_CMD_FLAG_KQEMU) &&
1528 1529 1530 1531
        !strcmp(ut.machine, vm->def->os.arch) &&
        vm->def->virtType == QEMUD_VIRT_QEMU)
        disableKQEMU = 1;

1532
    len = 1 + /* qemu */
D
Daniel P. Berrange 已提交
1533
        2 + /* machine type */
1534
        disableKQEMU + /* Disable kqemu */
1535 1536
        2 * vm->def->ndisks + /* disks*/
        (vm->def->nnets > 0 ? (4 * vm->def->nnets) : 2) + /* networks */
1537 1538
        1 + /* usb */
        2 * vm->def->ninputs + /* input devices */
D
Daniel P. Berrange 已提交
1539 1540 1541 1542
        2 + /* memory*/
        2 + /* cpus */
        2 + /* boot device */
        2 + /* monitor */
1543
        (vm->def->localtime ? 1 : 0) + /* localtime */
1544
        (vm->qemuCmdFlags & QEMUD_CMD_FLAG_NO_REBOOT &&
D
Daniel P. Berrange 已提交
1545
         vm->def->noReboot ? 1 : 0) + /* no-reboot */
1546 1547 1548 1549 1550
        (vm->def->features & QEMUD_FEATURE_ACPI ? 0 : 1) + /* acpi */
        (vm->def->os.kernel[0] ? 2 : 0) + /* kernel */
        (vm->def->os.initrd[0] ? 2 : 0) + /* initrd */
        (vm->def->os.cmdline[0] ? 2 : 0) + /* cmdline */
        (vm->def->graphicsType == QEMUD_GRAPHICS_VNC ? 2 :
1551 1552
         (vm->def->graphicsType == QEMUD_GRAPHICS_SDL ? 0 : 1)) + /* graphics */
        (vm->migrateFrom[0] ? 3 : 0); /* migrateFrom */
D
Daniel P. Berrange 已提交
1553

1554 1555
    snprintf(memory, sizeof(memory), "%d", vm->def->memory/1024);
    snprintf(vcpus, sizeof(vcpus), "%d", vm->def->vcpus);
D
Daniel P. Berrange 已提交
1556

1557
    if (!(*argv = malloc(sizeof(**argv) * (len+1))))
D
Daniel P. Berrange 已提交
1558
        goto no_memory;
1559
    if (!((*argv)[++n] = strdup(vm->def->os.binary)))
D
Daniel P. Berrange 已提交
1560 1561 1562
        goto no_memory;
    if (!((*argv)[++n] = strdup("-M")))
        goto no_memory;
1563
    if (!((*argv)[++n] = strdup(vm->def->os.machine)))
D
Daniel P. Berrange 已提交
1564
        goto no_memory;
1565
    if (disableKQEMU) {
D
Daniel P. Berrange 已提交
1566
        if (!((*argv)[++n] = strdup("-no-kqemu")))
1567
            goto no_memory;
D
Daniel P. Berrange 已提交
1568 1569 1570 1571 1572 1573 1574 1575 1576 1577
    }
    if (!((*argv)[++n] = strdup("-m")))
        goto no_memory;
    if (!((*argv)[++n] = strdup(memory)))
        goto no_memory;
    if (!((*argv)[++n] = strdup("-smp")))
        goto no_memory;
    if (!((*argv)[++n] = strdup(vcpus)))
        goto no_memory;

1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589
    /*
     * 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...
     */
    if (vm->def->graphicsType == QEMUD_GRAPHICS_NONE) {
        if (!((*argv)[++n] = strdup("-nographic")))
            goto no_memory;
    }

D
Daniel P. Berrange 已提交
1590 1591 1592 1593 1594
    if (!((*argv)[++n] = strdup("-monitor")))
        goto no_memory;
    if (!((*argv)[++n] = strdup("pty")))
        goto no_memory;

1595 1596 1597 1598 1599
    if (vm->def->localtime) {
        if (!((*argv)[++n] = strdup("-localtime")))
            goto no_memory;
    }

1600
    if (vm->qemuCmdFlags & QEMUD_CMD_FLAG_NO_REBOOT &&
D
Daniel P. Berrange 已提交
1601 1602 1603 1604 1605
        vm->def->noReboot) {
        if (!((*argv)[++n] = strdup("-no-reboot")))
            goto no_memory;
    }

1606
    if (!(vm->def->features & QEMUD_FEATURE_ACPI)) {
1607 1608
        if (!((*argv)[++n] = strdup("-no-acpi")))
            goto no_memory;
D
Daniel P. Berrange 已提交
1609 1610
    }

1611 1612
    for (i = 0 ; i < vm->def->os.nBootDevs ; i++) {
        switch (vm->def->os.bootDevs[i]) {
D
Daniel P. Berrange 已提交
1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629
        case QEMUD_BOOT_CDROM:
            boot[i] = 'd';
            break;
        case QEMUD_BOOT_FLOPPY:
            boot[i] = 'a';
            break;
        case QEMUD_BOOT_DISK:
            boot[i] = 'c';
            break;
        case QEMUD_BOOT_NET:
            boot[i] = 'n';
            break;
        default:
            boot[i] = 'c';
            break;
        }
    }
1630
    boot[vm->def->os.nBootDevs] = '\0';
D
Daniel P. Berrange 已提交
1631 1632 1633 1634 1635
    if (!((*argv)[++n] = strdup("-boot")))
        goto no_memory;
    if (!((*argv)[++n] = strdup(boot)))
        goto no_memory;

1636
    if (vm->def->os.kernel[0]) {
D
Daniel P. Berrange 已提交
1637 1638
        if (!((*argv)[++n] = strdup("-kernel")))
            goto no_memory;
1639
        if (!((*argv)[++n] = strdup(vm->def->os.kernel)))
D
Daniel P. Berrange 已提交
1640 1641
            goto no_memory;
    }
1642
    if (vm->def->os.initrd[0]) {
D
Daniel P. Berrange 已提交
1643 1644
        if (!((*argv)[++n] = strdup("-initrd")))
            goto no_memory;
1645
        if (!((*argv)[++n] = strdup(vm->def->os.initrd)))
D
Daniel P. Berrange 已提交
1646 1647
            goto no_memory;
    }
1648
    if (vm->def->os.cmdline[0]) {
D
Daniel P. Berrange 已提交
1649 1650
        if (!((*argv)[++n] = strdup("-append")))
            goto no_memory;
1651
        if (!((*argv)[++n] = strdup(vm->def->os.cmdline)))
D
Daniel P. Berrange 已提交
1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678
            goto no_memory;
    }

    while (disk) {
        char dev[NAME_MAX];
        char file[PATH_MAX];
        if (!strcmp(disk->dst, "hdc") &&
            disk->device == QEMUD_DISK_CDROM)
            snprintf(dev, NAME_MAX, "-%s", "cdrom");
        else
            snprintf(dev, NAME_MAX, "-%s", disk->dst);
        snprintf(file, PATH_MAX, "%s", disk->src);

        if (!((*argv)[++n] = strdup(dev)))
            goto no_memory;
        if (!((*argv)[++n] = strdup(file)))
            goto no_memory;

        disk = disk->next;
    }

    if (!net) {
        if (!((*argv)[++n] = strdup("-net")))
            goto no_memory;
        if (!((*argv)[++n] = strdup("none")))
            goto no_memory;
    } else {
1679
        int vlan = 0;
D
Daniel P. Berrange 已提交
1680
        while (net) {
1681
            char nic[100];
1682

1683 1684 1685 1686 1687 1688
            if (snprintf(nic, sizeof(nic), "nic,macaddr=%02x:%02x:%02x:%02x:%02x:%02x,vlan=%d",
                         net->mac[0], net->mac[1],
                         net->mac[2], net->mac[3],
                         net->mac[4], net->mac[5],
                         vlan) >= sizeof(nic))
                goto error;
D
Daniel P. Berrange 已提交
1689 1690 1691 1692 1693

            if (!((*argv)[++n] = strdup("-net")))
                goto no_memory;
            if (!((*argv)[++n] = strdup(nic)))
                goto no_memory;
1694

D
Daniel P. Berrange 已提交
1695 1696
            if (!((*argv)[++n] = strdup("-net")))
                goto no_memory;
1697

1698 1699 1700
            switch (net->type) {
            case QEMUD_NET_NETWORK:
            case QEMUD_NET_BRIDGE:
1701
                if (!((*argv)[++n] = qemudNetworkIfaceConnect(conn, driver, vm, net, vlan)))
1702
                    goto error;
1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757
                break;

            case QEMUD_NET_ETHERNET:
                {
                    char arg[PATH_MAX];
                    if (snprintf(arg, PATH_MAX-1, "tap,ifname=%s,script=%s,vlan=%d",
                                 net->dst.ethernet.ifname,
                                 net->dst.ethernet.script,
                                 vlan) >= (PATH_MAX-1))
                        goto error;

                    if (!((*argv)[++n] = strdup(arg)))
                        goto no_memory;
                }
                break;

            case QEMUD_NET_CLIENT:
            case QEMUD_NET_SERVER:
            case QEMUD_NET_MCAST:
                {
                    char arg[PATH_MAX];
                    const char *mode = NULL;
                    switch (net->type) {
                    case QEMUD_NET_CLIENT:
                        mode = "connect";
                        break;
                    case QEMUD_NET_SERVER:
                        mode = "listen";
                        break;
                    case QEMUD_NET_MCAST:
                        mode = "mcast";
                        break;
                    }
                    if (snprintf(arg, PATH_MAX-1, "socket,%s=%s:%d,vlan=%d",
                                 mode,
                                 net->dst.socket.address,
                                 net->dst.socket.port,
                                 vlan) >= (PATH_MAX-1))
                        goto error;

                    if (!((*argv)[++n] = strdup(arg)))
                        goto no_memory;
                }
                break;

            case QEMUD_NET_USER:
            default:
                {
                    char arg[PATH_MAX];
                    if (snprintf(arg, PATH_MAX-1, "user,vlan=%d", vlan) >= (PATH_MAX-1))
                        goto error;

                    if (!((*argv)[++n] = strdup(arg)))
                        goto no_memory;
                }
1758
            }
D
Daniel P. Berrange 已提交
1759 1760

            net = net->next;
1761
            vlan++;
D
Daniel P. Berrange 已提交
1762 1763 1764
        }
    }

1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777
    if (!((*argv)[++n] = strdup("-usb")))
        goto no_memory;
    while (input) {
        if (input->bus == QEMU_INPUT_BUS_USB) {
            if (!((*argv)[++n] = strdup("-usbdevice")))
                goto no_memory;
            if (!((*argv)[++n] = strdup(input->type == QEMU_INPUT_TYPE_MOUSE ? "mouse" : "tablet")))
                goto no_memory;
        }

        input = input->next;
    }

1778
    if (vm->def->graphicsType == QEMUD_GRAPHICS_VNC) {
D
Daniel P. Berrange 已提交
1779
        char vncdisplay[PATH_MAX];
1780
        int ret;
D
Daniel P. Berrange 已提交
1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795

        if (vm->qemuCmdFlags & QEMUD_CMD_FLAG_VNC_COLON) {
            char options[PATH_MAX] = "";
            if (driver->vncTLS) {
                strcat(options, ",tls");
                if (driver->vncTLSx509verify) {
                    strcat(options, ",x509verify=");
                } else {
                    strcat(options, ",x509=");
                }
                strncat(options, driver->vncTLSx509certdir,
                        sizeof(options) - (strlen(driver->vncTLSx509certdir)-1));
                options[sizeof(options)-1] = '\0';
            }
            ret = snprintf(vncdisplay, sizeof(vncdisplay), "%s:%d%s",
1796
                           vm->def->vncListen,
D
Daniel P. Berrange 已提交
1797 1798 1799
                           vm->def->vncActivePort - 5900,
                           options);
        } else {
1800 1801
            ret = snprintf(vncdisplay, sizeof(vncdisplay), "%d",
                           vm->def->vncActivePort - 5900);
D
Daniel P. Berrange 已提交
1802
        }
1803
        if (ret < 0 || ret >= (int)sizeof(vncdisplay))
1804 1805
            goto error;

D
Daniel P. Berrange 已提交
1806 1807
        if (!((*argv)[++n] = strdup("-vnc")))
            goto no_memory;
1808
        if (!((*argv)[++n] = strdup(vncdisplay)))
D
Daniel P. Berrange 已提交
1809
            goto no_memory;
1810
    } else if (vm->def->graphicsType == QEMUD_GRAPHICS_NONE) {
1811
        /* Nada - we added -nographic earlier in this function */
D
Daniel P. Berrange 已提交
1812 1813 1814 1815
    } else {
        /* SDL is the default. no args needed */
    }

1816 1817 1818 1819 1820 1821 1822 1823 1824
    if (vm->migrateFrom[0]) {
        if (!((*argv)[++n] = strdup("-S")))
            goto no_memory;
        if (!((*argv)[++n] = strdup("-incoming")))
            goto no_memory;
        if (!((*argv)[++n] = strdup(vm->migrateFrom)))
            goto no_memory;
    }

D
Daniel P. Berrange 已提交
1825 1826 1827 1828 1829
    (*argv)[++n] = NULL;

    return 0;

 no_memory:
1830
    qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "argv");
1831 1832 1833 1834 1835 1836 1837 1838
 error:
    if (vm->tapfds) {
        for (i = 0; vm->tapfds[i] != -1; i++)
            close(vm->tapfds[i]);
        free(vm->tapfds);
        vm->tapfds = NULL;
        vm->ntapfds = 0;
    }
D
Daniel P. Berrange 已提交
1839 1840
    if (argv) {
        for (i = 0 ; i < n ; i++)
1841 1842
            free((*argv)[i]);
        free(*argv);
D
Daniel P. Berrange 已提交
1843 1844 1845 1846 1847 1848
    }
    return -1;
}


/* Save a guest's config data into a persistent file */
1849 1850
static int qemudSaveConfig(virConnectPtr conn,
                           struct qemud_driver *driver,
1851 1852
                           struct qemud_vm *vm,
                           struct qemud_vm_def *def) {
D
Daniel P. Berrange 已提交
1853 1854 1855 1856
    char *xml;
    int fd = -1, ret = -1;
    int towrite;

1857
    if (!(xml = qemudGenerateXML(conn, driver, vm, def, 0)))
D
Daniel P. Berrange 已提交
1858 1859 1860 1861 1862
        return -1;

    if ((fd = open(vm->configFile,
                   O_WRONLY | O_CREAT | O_TRUNC,
                   S_IRUSR | S_IWUSR )) < 0) {
1863
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
1864 1865
                         "cannot create config file %s: %s",
                         vm->configFile, strerror(errno));
D
Daniel P. Berrange 已提交
1866 1867 1868 1869 1870
        goto cleanup;
    }

    towrite = strlen(xml);
    if (write(fd, xml, towrite) != towrite) {
1871
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
1872 1873
                         "cannot write config file %s: %s",
                         vm->configFile, strerror(errno));
D
Daniel P. Berrange 已提交
1874 1875 1876 1877
        goto cleanup;
    }

    if (close(fd) < 0) {
1878
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
1879 1880
                         "cannot save config file %s: %s",
                         vm->configFile, strerror(errno));
D
Daniel P. Berrange 已提交
1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894
        goto cleanup;
    }

    ret = 0;

 cleanup:
    if (fd != -1)
        close(fd);

    free(xml);

    return ret;
}

D
Daniel P. Berrange 已提交
1895 1896 1897 1898 1899 1900 1901
struct qemud_vm_device_def *
qemudParseVMDeviceDef(virConnectPtr conn,
                      struct qemud_driver *driver ATTRIBUTE_UNUSED,
                      const char *xmlStr)
{
    xmlDocPtr xml;
    xmlNodePtr node;
1902
    struct qemud_vm_device_def *dev = calloc(1, sizeof(*dev));
D
Daniel P. Berrange 已提交
1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939

    if (!(xml = xmlReadDoc(BAD_CAST xmlStr, "device.xml", NULL,
                           XML_PARSE_NOENT | XML_PARSE_NONET |
                           XML_PARSE_NOERROR | XML_PARSE_NOWARNING))) {
        qemudReportError(conn, NULL, NULL, VIR_ERR_XML_ERROR, NULL);
        return NULL;
    }

    node = xmlDocGetRootElement(xml);
    if (node == NULL) {
        qemudReportError(conn, NULL, NULL, VIR_ERR_XML_ERROR, "missing root element");
        goto error;
    }
    if (xmlStrEqual(node->name, BAD_CAST "disk")) {
        dev->type = QEMUD_DEVICE_DISK;
        qemudParseDiskXML(conn, &(dev->data.disk), node);
    } else if (xmlStrEqual(node->name, BAD_CAST "net")) {
        dev->type = QEMUD_DEVICE_NET;
        qemudParseInterfaceXML(conn, &(dev->data.net), node);
    } else if (xmlStrEqual(node->name, BAD_CAST "input")) {
        dev->type = QEMUD_DEVICE_DISK;
        qemudParseInputXML(conn, &(dev->data.input), node);
    } else {
        qemudReportError(conn, NULL, NULL, VIR_ERR_XML_ERROR, "unknown device type");
        goto error;
    }

    xmlFreeDoc(xml);

    return dev;

  error:
    if (xml) xmlFreeDoc(xml);
    if (dev) free(dev);
    return NULL;
}

1940
struct qemud_vm_def *
1941 1942
qemudParseVMDef(virConnectPtr conn,
                struct qemud_driver *driver,
1943 1944
                const char *xmlStr,
                const char *displayName) {
D
Daniel P. Berrange 已提交
1945
    xmlDocPtr xml;
1946
    struct qemud_vm_def *def = NULL;
D
Daniel P. Berrange 已提交
1947

1948
    if (!(xml = xmlReadDoc(BAD_CAST xmlStr, displayName ? displayName : "domain.xml", NULL,
D
Daniel P. Berrange 已提交
1949 1950
                           XML_PARSE_NOENT | XML_PARSE_NONET |
                           XML_PARSE_NOERROR | XML_PARSE_NOWARNING))) {
1951
        qemudReportError(conn, NULL, NULL, VIR_ERR_XML_ERROR, NULL);
D
Daniel P. Berrange 已提交
1952 1953 1954
        return NULL;
    }

1955
    def = qemudParseXML(conn, driver, xml);
1956

D
Daniel P. Berrange 已提交
1957 1958
    xmlFreeDoc(xml);

1959 1960 1961 1962
    return def;
}

struct qemud_vm *
1963 1964
qemudAssignVMDef(virConnectPtr conn,
                 struct qemud_driver *driver,
1965 1966 1967 1968
                 struct qemud_vm_def *def)
{
    struct qemud_vm *vm = NULL;

1969
    if ((vm = qemudFindVMByName(driver, def->name))) {
1970
        if (!qemudIsActiveVM(vm)) {
1971 1972 1973 1974 1975 1976 1977
            qemudFreeVMDef(vm->def);
            vm->def = def;
        } else {
            if (vm->newDef)
                qemudFreeVMDef(vm->newDef);
            vm->newDef = def;
        }
1978 1979 1980
        /* Reset version, because the emulator path might have changed */
        vm->qemuVersion = 0;
        vm->qemuCmdFlags = 0;
1981
        return vm;
D
Daniel P. Berrange 已提交
1982 1983
    }

1984
    if (!(vm = calloc(1, sizeof(*vm)))) {
1985
        qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "vm");
1986 1987
        return NULL;
    }
D
Daniel P. Berrange 已提交
1988

1989
    vm->stdin = -1;
1990 1991 1992 1993 1994
    vm->stdout = -1;
    vm->stderr = -1;
    vm->monitor = -1;
    vm->pid = -1;
    vm->id = -1;
1995
    vm->state = VIR_DOMAIN_SHUTOFF;
1996
    vm->def = def;
1997
    vm->next = driver->vms;
1998

1999 2000
    driver->vms = vm;
    driver->ninactivevms++;
2001 2002 2003 2004 2005

    return vm;
}

void
2006
qemudRemoveInactiveVM(struct qemud_driver *driver,
2007 2008 2009 2010
                      struct qemud_vm *vm)
{
    struct qemud_vm *prev = NULL, *curr;

2011
    curr = driver->vms;
2012 2013 2014
    while (curr != vm) {
        prev = curr;
        curr = curr->next;
D
Daniel P. Berrange 已提交
2015 2016
    }

2017 2018 2019 2020
    if (curr) {
        if (prev)
            prev->next = curr->next;
        else
2021
            driver->vms = curr->next;
2022

2023
        driver->ninactivevms--;
2024 2025
    }

2026
    qemudFreeVM(vm);
D
Daniel P. Berrange 已提交
2027 2028
}

2029
int
2030 2031
qemudSaveVMDef(virConnectPtr conn,
               struct qemud_driver *driver,
2032 2033 2034 2035 2036
               struct qemud_vm *vm,
               struct qemud_vm_def *def) {
    if (vm->configFile[0] == '\0') {
        int err;

2037
        if ((err = virFileMakePath(driver->configDir))) {
2038
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
2039
                             "cannot create config directory %s: %s",
2040
                             driver->configDir, strerror(err));
2041 2042 2043
            return -1;
        }

2044 2045
        if (virFileBuildPath(driver->configDir, def->name, ".xml",
                             vm->configFile, PATH_MAX) < 0) {
2046
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
2047 2048 2049
                             "cannot construct config file path");
            return -1;
        }
2050

2051 2052
        if (virFileBuildPath(driver->autostartDir, def->name, ".xml",
                             vm->autostartLink, PATH_MAX) < 0) {
2053
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
2054 2055 2056 2057
                             "cannot construct autostart link path");
            vm->configFile[0] = '\0';
            return -1;
        }
2058 2059
    }

2060
    return qemudSaveConfig(conn, driver, vm, def);
2061
}
D
Daniel P. Berrange 已提交
2062

2063 2064
static int qemudSaveNetworkConfig(virConnectPtr conn,
                                  struct qemud_driver *driver,
2065 2066
                                  struct qemud_network *network,
                                  struct qemud_network_def *def) {
2067 2068 2069
    char *xml;
    int fd, ret = -1;
    int towrite;
2070
    int err;
2071

2072
    if (!(xml = qemudGenerateNetworkXML(conn, driver, network, def))) {
2073 2074 2075
        return -1;
    }

2076
    if ((err = virFileMakePath(driver->networkConfigDir))) {
2077
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
2078
                         "cannot create config directory %s: %s",
2079
                         driver->networkConfigDir, strerror(err));
2080 2081 2082 2083 2084 2085
        goto cleanup;
    }

    if ((fd = open(network->configFile,
                   O_WRONLY | O_CREAT | O_TRUNC,
                   S_IRUSR | S_IWUSR )) < 0) {
2086
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
2087 2088
                         "cannot create config file %s: %s",
                         network->configFile, strerror(errno));
2089 2090 2091 2092 2093
        goto cleanup;
    }

    towrite = strlen(xml);
    if (write(fd, xml, towrite) != towrite) {
2094
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
2095
                         "cannot write config file %s: %s",
2096
                         network->configFile, strerror(errno));
2097 2098 2099 2100
        goto cleanup;
    }

    if (close(fd) < 0) {
2101
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
2102
                         "cannot save config file %s: %s",
2103
                         network->configFile, strerror(errno));
2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115
        goto cleanup;
    }

    ret = 0;

 cleanup:

    free(xml);

    return ret;
}

2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131
void qemudFreeNetworkDef(struct qemud_network_def *def) {
    struct qemud_dhcp_range_def *range = def->ranges;
    while (range) {
        struct qemud_dhcp_range_def *next = range->next;
        free(range);
        range = next;
    }
    free(def);
}

void qemudFreeNetwork(struct qemud_network *network) {
    qemudFreeNetworkDef(network->def);
    if (network->newDef)
        qemudFreeNetworkDef(network->newDef);
    free(network);
}
2132

2133
static int qemudParseBridgeXML(struct qemud_driver *driver ATTRIBUTE_UNUSED,
2134
                               struct qemud_network_def *def,
2135 2136 2137 2138 2139
                               xmlNodePtr node) {
    xmlChar *name, *stp, *delay;

    name = xmlGetProp(node, BAD_CAST "name");
    if (name != NULL) {
2140 2141
        strncpy(def->bridge, (const char *)name, IF_NAMESIZE-1);
        def->bridge[IF_NAMESIZE-1] = '\0';
2142 2143 2144 2145 2146 2147 2148
        xmlFree(name);
        name = NULL;
    }

    stp = xmlGetProp(node, BAD_CAST "stp");
    if (stp != NULL) {
        if (xmlStrEqual(stp, BAD_CAST "off")) {
2149
            def->disableSTP = 1;
2150 2151 2152 2153 2154 2155 2156
        }
        xmlFree(stp);
        stp = NULL;
    }

    delay = xmlGetProp(node, BAD_CAST "delay");
    if (delay != NULL) {
2157
        def->forwardDelay = strtol((const char *)delay, NULL, 10);
2158 2159 2160 2161 2162 2163 2164
        xmlFree(delay);
        delay = NULL;
    }

    return 1;
}

2165 2166
static int qemudParseDhcpRangesXML(virConnectPtr conn,
                                   struct qemud_driver *driver ATTRIBUTE_UNUSED,
2167
                                   struct qemud_network_def *def,
2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182
                                   xmlNodePtr node) {

    xmlNodePtr cur;

    cur = node->children;
    while (cur != NULL) {
        struct qemud_dhcp_range_def *range;
        xmlChar *start, *end;

        if (cur->type != XML_ELEMENT_NODE ||
            !xmlStrEqual(cur->name, BAD_CAST "range")) {
            cur = cur->next;
            continue;
        }

2183
        if (!(range = calloc(1, sizeof(*range)))) {
2184
            qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "range");
2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197
            return 0;
        }

        start = xmlGetProp(cur, BAD_CAST "start");
        end = xmlGetProp(cur, BAD_CAST "end");

        if (start && start[0] && end && end[0]) {
            strncpy(range->start, (const char *)start, BR_INET_ADDR_MAXLEN-1);
            range->start[BR_INET_ADDR_MAXLEN-1] = '\0';

            strncpy(range->end, (const char *)end, BR_INET_ADDR_MAXLEN-1);
            range->end[BR_INET_ADDR_MAXLEN-1] = '\0';

2198 2199 2200
            range->next = def->ranges;
            def->ranges = range;
            def->nranges++;
2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214
        } else {
            free(range);
        }

        if (start)
            xmlFree(start);
        if (end)
            xmlFree(end);

        cur = cur->next;
    }

    return 1;
}
2215

2216 2217
static int qemudParseInetXML(virConnectPtr conn,
                             struct qemud_driver *driver ATTRIBUTE_UNUSED,
2218
                             struct qemud_network_def *def,
2219 2220
                             xmlNodePtr node) {
    xmlChar *address, *netmask;
2221
    xmlNodePtr cur;
2222 2223 2224

    address = xmlGetProp(node, BAD_CAST "address");
    if (address != NULL) {
2225 2226
        strncpy(def->ipAddress, (const char *)address, BR_INET_ADDR_MAXLEN-1);
        def->ipAddress[BR_INET_ADDR_MAXLEN-1] = '\0';
2227 2228 2229 2230 2231 2232
        xmlFree(address);
        address = NULL;
    }

    netmask = xmlGetProp(node, BAD_CAST "netmask");
    if (netmask != NULL) {
2233 2234
        strncpy(def->netmask, (const char *)netmask, BR_INET_ADDR_MAXLEN-1);
        def->netmask[BR_INET_ADDR_MAXLEN-1] = '\0';
2235 2236 2237 2238
        xmlFree(netmask);
        netmask = NULL;
    }

2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253
    if (def->ipAddress[0] && def->netmask[0]) {
        struct in_addr inaddress, innetmask;
        char *netaddr;

        inet_aton((const char*)def->ipAddress, &inaddress);
        inet_aton((const char*)def->netmask, &innetmask);

        inaddress.s_addr &= innetmask.s_addr;

        netaddr = inet_ntoa(inaddress);

        snprintf(def->network,sizeof(def->network)-1,
                 "%s/%s", netaddr, (const char *)def->netmask);
    }

2254 2255 2256 2257
    cur = node->children;
    while (cur != NULL) {
        if (cur->type == XML_ELEMENT_NODE &&
            xmlStrEqual(cur->name, BAD_CAST "dhcp") &&
2258
            !qemudParseDhcpRangesXML(conn, driver, def, cur))
2259 2260 2261 2262
            return 0;
        cur = cur->next;
    }

2263 2264 2265 2266
    return 1;
}


2267 2268
static struct qemud_network_def *qemudParseNetworkXML(virConnectPtr conn,
                                                      struct qemud_driver *driver,
2269
                                                      xmlDocPtr xml) {
2270 2271
    xmlNodePtr root = NULL;
    xmlXPathContextPtr ctxt = NULL;
2272
    xmlXPathObjectPtr obj = NULL, tmp = NULL;
2273 2274
    struct qemud_network_def *def;

2275
    if (!(def = calloc(1, sizeof(*def)))) {
2276
        qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "network_def");
2277 2278
        return NULL;
    }
2279 2280 2281 2282

    /* Prepare parser / xpath context */
    root = xmlDocGetRootElement(xml);
    if ((root == NULL) || (!xmlStrEqual(root->name, BAD_CAST "network"))) {
2283
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "incorrect root element");
2284 2285 2286 2287 2288
        goto error;
    }

    ctxt = xmlXPathNewContext(xml);
    if (ctxt == NULL) {
2289
        qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "xmlXPathContext");
2290 2291 2292 2293 2294 2295 2296 2297
        goto error;
    }


    /* Extract network name */
    obj = xmlXPathEval(BAD_CAST "string(/network/name[1])", ctxt);
    if ((obj == NULL) || (obj->type != XPATH_STRING) ||
        (obj->stringval == NULL) || (obj->stringval[0] == 0)) {
2298
        qemudReportError(conn, NULL, NULL, VIR_ERR_NO_NAME, NULL);
2299 2300 2301
        goto error;
    }
    if (strlen((const char *)obj->stringval) >= (QEMUD_MAX_NAME_LEN-1)) {
2302
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "network name length too long");
2303 2304
        goto error;
    }
2305
    strcpy(def->name, (const char *)obj->stringval);
2306 2307 2308 2309 2310 2311 2312
    xmlXPathFreeObject(obj);


    /* Extract network uuid */
    obj = xmlXPathEval(BAD_CAST "string(/network/uuid[1])", ctxt);
    if ((obj == NULL) || (obj->type != XPATH_STRING) ||
        (obj->stringval == NULL) || (obj->stringval[0] == 0)) {
2313
        int err;
D
Daniel P. Berrange 已提交
2314
        if ((err = virUUIDGenerate(def->uuid))) {
2315
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
2316 2317 2318
                             "Failed to generate UUID: %s", strerror(err));
            goto error;
        }
D
Daniel P. Berrange 已提交
2319
    } else if (virUUIDParse((const char *)obj->stringval, def->uuid) < 0) {
2320
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", "malformed uuid element");
2321 2322 2323 2324
        goto error;
    }
    xmlXPathFreeObject(obj);

2325 2326 2327 2328
    /* Parse bridge information */
    obj = xmlXPathEval(BAD_CAST "/network/bridge[1]", ctxt);
    if ((obj != NULL) && (obj->type == XPATH_NODESET) &&
        (obj->nodesetval != NULL) && (obj->nodesetval->nodeNr > 0)) {
2329
        if (!qemudParseBridgeXML(driver, def, obj->nodesetval->nodeTab[0])) {
2330 2331 2332 2333 2334 2335 2336 2337 2338
            goto error;
        }
    }
    xmlXPathFreeObject(obj);

    /* Parse IP information */
    obj = xmlXPathEval(BAD_CAST "/network/ip[1]", ctxt);
    if ((obj != NULL) && (obj->type == XPATH_NODESET) &&
        (obj->nodesetval != NULL) && (obj->nodesetval->nodeNr > 0)) {
2339
        if (!qemudParseInetXML(conn, driver, def, obj->nodesetval->nodeTab[0])) {
2340 2341 2342 2343 2344 2345
            goto error;
        }
    }
    xmlXPathFreeObject(obj);

    /* IPv4 forwarding setup */
2346 2347 2348
    obj = xmlXPathEval(BAD_CAST "count(/network/forward) > 0", ctxt);
    if ((obj != NULL) && (obj->type == XPATH_BOOLEAN) &&
        obj->boolval) {
2349 2350
        if (!def->ipAddress[0] ||
            !def->netmask[0]) {
2351
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
2352 2353 2354 2355
                             "Forwarding requested, but no IPv4 address/netmask provided");
            goto error;
        }

2356 2357 2358 2359 2360 2361
        def->forward = 1;
        tmp = xmlXPathEval(BAD_CAST "string(/network/forward[1]/@dev)", ctxt);
        if ((tmp != NULL) && (tmp->type == XPATH_STRING) &&
            (tmp->stringval != NULL) && (tmp->stringval[0] != 0)) {
            int len;
            if ((len = xmlStrlen(tmp->stringval)) >= (BR_IFNAME_MAXLEN-1)) {
2362
                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377
                                 "forward device name '%s' is too long",
                                 (char*)tmp->stringval);
                goto error;
            }
            strcpy(def->forwardDev, (char*)tmp->stringval);
        } else {
            def->forwardDev[0] = '\0';
        }
        xmlXPathFreeObject(tmp);
        tmp = NULL;
    } else {
        def->forward = 0;
    }
    xmlXPathFreeObject(obj);

2378 2379
    xmlXPathFreeContext(ctxt);

2380
    return def;
2381 2382 2383 2384 2385 2386

 error:
    /* XXX free all the stuff in the qemud_network struct, or leave it upto
       the caller ? */
    if (obj)
        xmlXPathFreeObject(obj);
2387 2388
    if (tmp)
        xmlXPathFreeObject(tmp);
2389 2390
    if (ctxt)
        xmlXPathFreeContext(ctxt);
2391 2392
    qemudFreeNetworkDef(def);
    return NULL;
2393 2394
}

2395
struct qemud_network_def *
2396 2397
qemudParseNetworkDef(virConnectPtr conn,
                     struct qemud_driver *driver,
2398 2399
                     const char *xmlStr,
                     const char *displayName) {
2400
    xmlDocPtr xml;
2401
    struct qemud_network_def *def;
2402

2403
    if (!(xml = xmlReadDoc(BAD_CAST xmlStr, displayName ? displayName : "network.xml", NULL,
2404 2405
                           XML_PARSE_NOENT | XML_PARSE_NONET |
                           XML_PARSE_NOERROR | XML_PARSE_NOWARNING))) {
2406
        qemudReportError(conn, NULL, NULL, VIR_ERR_XML_ERROR, NULL);
2407 2408 2409
        return NULL;
    }

2410
    def = qemudParseNetworkXML(conn, driver, xml);
2411

2412 2413
    xmlFreeDoc(xml);

2414 2415 2416 2417
    return def;
}

struct qemud_network *
2418 2419
qemudAssignNetworkDef(virConnectPtr conn,
                      struct qemud_driver *driver,
2420 2421 2422
                      struct qemud_network_def *def) {
    struct qemud_network *network;

2423
    if ((network = qemudFindNetworkByName(driver, def->name))) {
2424
        if (!qemudIsActiveNetwork(network)) {
2425 2426 2427 2428 2429 2430 2431 2432
            qemudFreeNetworkDef(network->def);
            network->def = def;
        } else {
            if (network->newDef)
                qemudFreeNetworkDef(network->newDef);
            network->newDef = def;
        }

2433
        return network;
2434 2435
    }

2436
    if (!(network = calloc(1, sizeof(*network)))) {
2437
        qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "network");
2438 2439
        return NULL;
    }
2440

2441
    network->def = def;
2442
    network->next = driver->networks;
2443

2444 2445
    driver->networks = network;
    driver->ninactivenetworks++;
2446 2447 2448 2449 2450

    return network;
}

void
2451
qemudRemoveInactiveNetwork(struct qemud_driver *driver,
2452 2453 2454 2455
                           struct qemud_network *network)
{
    struct qemud_network *prev = NULL, *curr;

2456
    curr = driver->networks;
2457 2458 2459
    while (curr != network) {
        prev = curr;
        curr = curr->next;
2460 2461
    }

2462 2463 2464 2465
    if (curr) {
        if (prev)
            prev->next = curr->next;
        else
2466
            driver->networks = curr->next;
2467

2468
        driver->ninactivenetworks--;
2469 2470
    }

2471
    qemudFreeNetwork(network);
2472 2473
}

2474
int
2475 2476
qemudSaveNetworkDef(virConnectPtr conn,
                    struct qemud_driver *driver,
2477 2478 2479 2480 2481 2482
                    struct qemud_network *network,
                    struct qemud_network_def *def) {

    if (network->configFile[0] == '\0') {
        int err;

2483
        if ((err = virFileMakePath(driver->networkConfigDir))) {
2484
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
2485
                             "cannot create config directory %s: %s",
2486
                             driver->networkConfigDir, strerror(err));
2487 2488 2489
            return -1;
        }

2490 2491
        if (virFileBuildPath(driver->networkConfigDir, def->name, ".xml",
                             network->configFile, PATH_MAX) < 0) {
2492
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
2493 2494 2495
                             "cannot construct config file path");
            return -1;
        }
2496

2497 2498
        if (virFileBuildPath(driver->networkAutostartDir, def->name, ".xml",
                             network->autostartLink, PATH_MAX) < 0) {
2499
            qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
2500 2501 2502 2503
                             "cannot construct autostart link path");
            network->configFile[0] = '\0';
            return -1;
        }
2504 2505
    }

2506
    return qemudSaveNetworkConfig(conn, driver, network, def);
2507
}
2508

2509

2510
static struct qemud_vm *
2511
qemudLoadConfig(struct qemud_driver *driver,
2512 2513
                const char *file,
                const char *path,
2514 2515
                const char *xml,
                const char *autostartLink) {
2516 2517 2518
    struct qemud_vm_def *def;
    struct qemud_vm *vm;

2519
    if (!(def = qemudParseVMDef(NULL, driver, xml, file))) {
2520
        virErrorPtr err = virGetLastError();
2521
        qemudLog(QEMUD_WARN, "Error parsing QEMU guest config '%s' : %s",
2522
                 path, err->message);
2523 2524 2525
        return NULL;
    }

2526
    if (!virFileMatchesNameSuffix(file, def->name, ".xml")) {
2527 2528 2529 2530 2531 2532
        qemudLog(QEMUD_WARN, "QEMU guest config filename '%s' does not match guest name '%s'",
                 path, def->name);
        qemudFreeVMDef(def);
        return NULL;
    }

2533
    if (!(vm = qemudAssignVMDef(NULL, driver, def))) {
2534 2535 2536 2537 2538 2539 2540 2541
        qemudLog(QEMUD_WARN, "Failed to load QEMU guest config '%s': out of memory", path);
        qemudFreeVMDef(def);
        return NULL;
    }

    strncpy(vm->configFile, path, PATH_MAX);
    vm->configFile[PATH_MAX-1] = '\0';

2542 2543 2544
    strncpy(vm->autostartLink, autostartLink, PATH_MAX);
    vm->autostartLink[PATH_MAX-1] = '\0';

2545
    vm->autostart = virFileLinkPointsTo(vm->autostartLink, vm->configFile);
2546

2547 2548 2549 2550
    return vm;
}

static struct qemud_network *
2551
qemudLoadNetworkConfig(struct qemud_driver *driver,
2552 2553
                       const char *file,
                       const char *path,
2554 2555
                       const char *xml,
                       const char *autostartLink) {
2556 2557 2558
    struct qemud_network_def *def;
    struct qemud_network *network;

2559
    if (!(def = qemudParseNetworkDef(NULL, driver, xml, file))) {
2560
        virErrorPtr err = virGetLastError();
2561
        qemudLog(QEMUD_WARN, "Error parsing network config '%s' : %s",
2562
                 path, err->message);
2563 2564 2565
        return NULL;
    }

2566
    if (!virFileMatchesNameSuffix(file, def->name, ".xml")) {
2567 2568 2569 2570 2571 2572
        qemudLog(QEMUD_WARN, "Network config filename '%s' does not match network name '%s'",
                 path, def->name);
        qemudFreeNetworkDef(def);
        return NULL;
    }

2573
    if (!(network = qemudAssignNetworkDef(NULL, driver, def))) {
2574 2575 2576 2577 2578 2579 2580 2581
        qemudLog(QEMUD_WARN, "Failed to load network config '%s': out of memory", path);
        qemudFreeNetworkDef(def);
        return NULL;
    }

    strncpy(network->configFile, path, PATH_MAX);
    network->configFile[PATH_MAX-1] = '\0';

2582 2583 2584
    strncpy(network->autostartLink, autostartLink, PATH_MAX);
    network->autostartLink[PATH_MAX-1] = '\0';

2585
    network->autostart = virFileLinkPointsTo(network->autostartLink, network->configFile);
2586

2587 2588
    return network;
}
D
Daniel P. Berrange 已提交
2589

2590
static
2591
int qemudScanConfigDir(struct qemud_driver *driver,
2592
                       const char *configDir,
2593
                       const char *autostartDir,
2594
                       int isGuest) {
D
Daniel P. Berrange 已提交
2595 2596 2597
    DIR *dir;
    struct dirent *entry;

2598
    if (!(dir = opendir(configDir))) {
D
Daniel P. Berrange 已提交
2599 2600
        if (errno == ENOENT)
            return 0;
2601 2602
        qemudLog(QEMUD_ERR, "Failed to open dir '%s': %s",
                 configDir, strerror(errno));
D
Daniel P. Berrange 已提交
2603 2604 2605 2606
        return -1;
    }

    while ((entry = readdir(dir))) {
2607 2608
        char xml[QEMUD_MAX_XML_LEN];
        char path[PATH_MAX];
2609
        char autostartLink[PATH_MAX];
2610

D
Daniel P. Berrange 已提交
2611 2612 2613
        if (entry->d_name[0] == '.')
            continue;

2614
        if (!virFileHasSuffix(entry->d_name, ".xml"))
2615 2616
            continue;

2617
        if (virFileBuildPath(configDir, entry->d_name, NULL, path, PATH_MAX) < 0) {
2618 2619 2620 2621 2622
            qemudLog(QEMUD_WARN, "Config filename '%s/%s' is too long",
                     configDir, entry->d_name);
            continue;
        }

2623
        if (virFileBuildPath(autostartDir, entry->d_name, NULL, autostartLink, PATH_MAX) < 0) {
2624 2625 2626 2627 2628
            qemudLog(QEMUD_WARN, "Autostart link path '%s/%s' is too long",
                     autostartDir, entry->d_name);
            continue;
        }

2629
        if (virFileReadAll(path, xml, QEMUD_MAX_XML_LEN) < 0)
D
Daniel P. Berrange 已提交
2630 2631
            continue;

2632
        if (isGuest)
2633
            qemudLoadConfig(driver, entry->d_name, path, xml, autostartLink);
2634
        else
2635
            qemudLoadNetworkConfig(driver, entry->d_name, path, xml, autostartLink);
D
Daniel P. Berrange 已提交
2636 2637 2638 2639 2640 2641 2642
    }

    closedir(dir);
 
    return 0;
}

2643
/* Scan for all guest and network config files */
2644 2645
int qemudScanConfigs(struct qemud_driver *driver) {
    if (qemudScanConfigDir(driver, driver->configDir, driver->autostartDir, 1) < 0)
2646
        return -1;
2647

2648
    if (qemudScanConfigDir(driver, driver->networkConfigDir, driver->networkAutostartDir, 0) < 0)
2649 2650 2651
        return -1;

    return 0;
2652
}
D
Daniel P. Berrange 已提交
2653 2654

/* Generate an XML document describing the guest's configuration */
2655 2656
char *qemudGenerateXML(virConnectPtr conn,
                       struct qemud_driver *driver ATTRIBUTE_UNUSED,
2657 2658 2659
                       struct qemud_vm *vm,
                       struct qemud_vm_def *def,
                       int live) {
D
Daniel P. Berrange 已提交
2660
    virBufferPtr buf = 0;
D
Daniel P. Berrange 已提交
2661
    unsigned char *uuid;
2662
    char uuidstr[VIR_UUID_STRING_BUFLEN];
D
Daniel P. Berrange 已提交
2663 2664
    struct qemud_vm_disk_def *disk;
    struct qemud_vm_net_def *net;
2665
    struct qemud_vm_input_def *input;
D
Daniel P. Berrange 已提交
2666 2667 2668
    const char *type = NULL;
    int n;

D
Daniel P. Berrange 已提交
2669
    buf = virBufferNew (QEMUD_MAX_XML_LEN);
2670
    if (!buf)
2671 2672
        goto no_memory;

2673
    switch (def->virtType) {
D
Daniel P. Berrange 已提交
2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684
    case QEMUD_VIRT_QEMU:
        type = "qemu";
        break;
    case QEMUD_VIRT_KQEMU:
        type = "kqemu";
        break;
    case QEMUD_VIRT_KVM:
        type = "kvm";
        break;
    }
    if (!type) {
2685
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "unexpected domain type %d", def->virtType);
D
Daniel P. Berrange 已提交
2686 2687 2688
        goto cleanup;
    }

2689
    if (qemudIsActiveVM(vm) && live) {
D
Daniel P. Berrange 已提交
2690
        if (virBufferVSprintf(buf, "<domain type='%s' id='%d'>\n", type, vm->id) < 0)
D
Daniel P. Berrange 已提交
2691 2692
            goto no_memory;
    } else {
D
Daniel P. Berrange 已提交
2693
        if (virBufferVSprintf(buf, "<domain type='%s'>\n", type) < 0)
D
Daniel P. Berrange 已提交
2694 2695 2696
            goto no_memory;
    }

D
Daniel P. Berrange 已提交
2697
    if (virBufferVSprintf(buf, "  <name>%s</name>\n", def->name) < 0)
D
Daniel P. Berrange 已提交
2698 2699
        goto no_memory;

2700
    uuid = def->uuid;
2701 2702
    virUUIDFormat(uuid, uuidstr);
    if (virBufferVSprintf(buf, "  <uuid>%s</uuid>\n", uuidstr) < 0)
D
Daniel P. Berrange 已提交
2703
        goto no_memory;
D
Daniel P. Berrange 已提交
2704
    if (virBufferVSprintf(buf, "  <memory>%d</memory>\n", def->maxmem) < 0)
D
Daniel P. Berrange 已提交
2705
        goto no_memory;
D
Daniel P. Berrange 已提交
2706
    if (virBufferVSprintf(buf, "  <currentMemory>%d</currentMemory>\n", def->memory) < 0)
D
Daniel P. Berrange 已提交
2707
        goto no_memory;
D
Daniel P. Berrange 已提交
2708
    if (virBufferVSprintf(buf, "  <vcpu>%d</vcpu>\n", def->vcpus) < 0)
D
Daniel P. Berrange 已提交
2709 2710
        goto no_memory;

D
Daniel P. Berrange 已提交
2711
    if (virBufferAdd(buf, "  <os>\n", -1) < 0)
D
Daniel P. Berrange 已提交
2712 2713
        goto no_memory;

2714
    if (def->virtType == QEMUD_VIRT_QEMU) {
D
Daniel P. Berrange 已提交
2715
        if (virBufferVSprintf(buf, "    <type arch='%s' machine='%s'>%s</type>\n",
2716
                              def->os.arch, def->os.machine, def->os.type) < 0)
D
Daniel P. Berrange 已提交
2717 2718
            goto no_memory;
    } else {
D
Daniel P. Berrange 已提交
2719
        if (virBufferVSprintf(buf, "    <type>%s</type>\n", def->os.type) < 0)
D
Daniel P. Berrange 已提交
2720 2721 2722
            goto no_memory;
    }

2723
    if (def->os.kernel[0])
D
Daniel P. Berrange 已提交
2724
        if (virBufferVSprintf(buf, "    <kernel>%s</kernel>\n", def->os.kernel) < 0)
D
Daniel P. Berrange 已提交
2725
            goto no_memory;
2726
    if (def->os.initrd[0])
D
Daniel P. Berrange 已提交
2727
        if (virBufferVSprintf(buf, "    <initrd>%s</initrd>\n", def->os.initrd) < 0)
D
Daniel P. Berrange 已提交
2728
            goto no_memory;
2729
    if (def->os.cmdline[0])
D
Daniel P. Berrange 已提交
2730
        if (virBufferVSprintf(buf, "    <cmdline>%s</cmdline>\n", def->os.cmdline) < 0)
D
Daniel P. Berrange 已提交
2731 2732
            goto no_memory;

2733
    for (n = 0 ; n < def->os.nBootDevs ; n++) {
D
Daniel P. Berrange 已提交
2734
        const char *boottype = "hd";
2735
        switch (def->os.bootDevs[n]) {
D
Daniel P. Berrange 已提交
2736 2737 2738 2739 2740 2741 2742 2743 2744 2745
        case QEMUD_BOOT_FLOPPY:
            boottype = "fd";
            break;
        case QEMUD_BOOT_DISK:
            boottype = "hd";
            break;
        case QEMUD_BOOT_CDROM:
            boottype = "cdrom";
            break;
        case QEMUD_BOOT_NET:
2746
            boottype = "network";
D
Daniel P. Berrange 已提交
2747 2748
            break;
        }
D
Daniel P. Berrange 已提交
2749
        if (virBufferVSprintf(buf, "    <boot dev='%s'/>\n", boottype) < 0)
D
Daniel P. Berrange 已提交
2750 2751 2752
            goto no_memory;
    }

D
Daniel P. Berrange 已提交
2753
    if (virBufferAdd(buf, "  </os>\n", -1) < 0)
D
Daniel P. Berrange 已提交
2754 2755
        goto no_memory;

2756
    if (def->features & QEMUD_FEATURE_ACPI) {
D
Daniel P. Berrange 已提交
2757
        if (virBufferAdd(buf, "  <features>\n", -1) < 0)
2758
            goto no_memory;
D
Daniel P. Berrange 已提交
2759
        if (virBufferAdd(buf, "    <acpi/>\n", -1) < 0)
2760
            goto no_memory;
D
Daniel P. Berrange 已提交
2761
        if (virBufferAdd(buf, "  </features>\n", -1) < 0)
2762 2763 2764
            goto no_memory;
    }

2765 2766
    virBufferVSprintf(buf, "  <clock offset='%s'/>\n", def->localtime ? "localtime" : "utc");

D
Daniel P. Berrange 已提交
2767
    if (virBufferAdd(buf, "  <on_poweroff>destroy</on_poweroff>\n", -1) < 0)
D
Daniel P. Berrange 已提交
2768 2769
        goto no_memory;
    if (def->noReboot) {
D
Daniel P. Berrange 已提交
2770
        if (virBufferAdd(buf, "  <on_reboot>destroy</on_reboot>\n", -1) < 0)
D
Daniel P. Berrange 已提交
2771 2772
            goto no_memory;
    } else {
D
Daniel P. Berrange 已提交
2773
        if (virBufferAdd(buf, "  <on_reboot>restart</on_reboot>\n", -1) < 0)
D
Daniel P. Berrange 已提交
2774 2775
            goto no_memory;
    }
D
Daniel P. Berrange 已提交
2776
    if (virBufferAdd(buf, "  <on_crash>destroy</on_crash>\n", -1) < 0)
D
Daniel P. Berrange 已提交
2777
        goto no_memory;
2778

D
Daniel P. Berrange 已提交
2779
    if (virBufferAdd(buf, "  <devices>\n", -1) < 0)
D
Daniel P. Berrange 已提交
2780 2781
        goto no_memory;

D
Daniel P. Berrange 已提交
2782
    if (virBufferVSprintf(buf, "    <emulator>%s</emulator>\n", def->os.binary) < 0)
D
Daniel P. Berrange 已提交
2783 2784
        goto no_memory;

2785
    disk = def->disks;
D
Daniel P. Berrange 已提交
2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799
    while (disk) {
        const char *types[] = {
            "block",
            "file",
        };
        const char *typeAttrs[] = {
            "dev",
            "file",
        };
        const char *devices[] = {
            "disk",
            "cdrom",
            "floppy",
        };
D
Daniel P. Berrange 已提交
2800
        if (virBufferVSprintf(buf, "    <disk type='%s' device='%s'>\n",
D
Daniel P. Berrange 已提交
2801 2802 2803
                              types[disk->type], devices[disk->device]) < 0)
            goto no_memory;

D
Daniel P. Berrange 已提交
2804
        if (virBufferVSprintf(buf, "      <source %s='%s'/>\n", typeAttrs[disk->type], disk->src) < 0)
D
Daniel P. Berrange 已提交
2805 2806
            goto no_memory;

D
Daniel P. Berrange 已提交
2807
        if (virBufferVSprintf(buf, "      <target dev='%s'/>\n", disk->dst) < 0)
D
Daniel P. Berrange 已提交
2808 2809 2810
            goto no_memory;

        if (disk->readonly)
D
Daniel P. Berrange 已提交
2811
            if (virBufferAdd(buf, "      <readonly/>\n", -1) < 0)
D
Daniel P. Berrange 已提交
2812 2813
                goto no_memory;

D
Daniel P. Berrange 已提交
2814
        if (virBufferVSprintf(buf, "    </disk>\n") < 0)
D
Daniel P. Berrange 已提交
2815 2816 2817 2818 2819
            goto no_memory;

        disk = disk->next;
    }

2820
    net = def->nets;
2821
    while (net) {
D
Daniel P. Berrange 已提交
2822 2823
        const char *types[] = {
            "user",
2824
            "ethernet",
D
Daniel P. Berrange 已提交
2825 2826 2827
            "server",
            "client",
            "mcast",
2828
            "network",
2829
            "bridge",
D
Daniel P. Berrange 已提交
2830
        };
D
Daniel P. Berrange 已提交
2831
        if (virBufferVSprintf(buf, "    <interface type='%s'>\n",
D
Daniel P. Berrange 已提交
2832 2833 2834
                              types[net->type]) < 0)
            goto no_memory;

D
Daniel P. Berrange 已提交
2835
        if (virBufferVSprintf(buf, "      <mac address='%02x:%02x:%02x:%02x:%02x:%02x'/>\n",
D
Daniel P. Berrange 已提交
2836 2837 2838 2839
                              net->mac[0], net->mac[1], net->mac[2],
                              net->mac[3], net->mac[4], net->mac[5]) < 0)
            goto no_memory;

2840 2841
        switch (net->type) {
        case QEMUD_NET_NETWORK:
D
Daniel P. Berrange 已提交
2842
            if (virBufferVSprintf(buf, "      <source network='%s'/>\n", net->dst.network.name) < 0)
2843 2844
                goto no_memory;

2845
            if (net->dst.network.ifname[0] != '\0') {
D
Daniel P. Berrange 已提交
2846
                if (virBufferVSprintf(buf, "      <target dev='%s'/>\n", net->dst.network.ifname) < 0)
2847 2848 2849
                    goto no_memory;
            }
            break;
2850

2851 2852
        case QEMUD_NET_ETHERNET:
            if (net->dst.ethernet.ifname[0] != '\0') {
D
Daniel P. Berrange 已提交
2853
                if (virBufferVSprintf(buf, "      <target dev='%s'/>\n", net->dst.ethernet.ifname) < 0)
2854 2855 2856
                    goto no_memory;
            }
            if (net->dst.ethernet.script[0] != '\0') {
D
Daniel P. Berrange 已提交
2857
                if (virBufferVSprintf(buf, "      <script path='%s'/>\n", net->dst.ethernet.script) < 0)
2858 2859 2860 2861 2862
                    goto no_memory;
            }
            break;

        case QEMUD_NET_BRIDGE:
D
Daniel P. Berrange 已提交
2863
            if (virBufferVSprintf(buf, "      <source bridge='%s'/>\n", net->dst.bridge.brname) < 0)
2864
                goto no_memory;
2865
            if (net->dst.bridge.ifname[0] != '\0') {
D
Daniel P. Berrange 已提交
2866
                if (virBufferVSprintf(buf, "      <target dev='%s'/>\n", net->dst.bridge.ifname) < 0)
2867 2868 2869 2870 2871 2872 2873 2874
                    goto no_memory;
            }
            break;

        case QEMUD_NET_SERVER:
        case QEMUD_NET_CLIENT:
        case QEMUD_NET_MCAST:
            if (net->dst.socket.address[0] != '\0') {
D
Daniel P. Berrange 已提交
2875
                if (virBufferVSprintf(buf, "      <source address='%s' port='%d'/>\n",
2876 2877 2878
                                      net->dst.socket.address, net->dst.socket.port) < 0)
                    goto no_memory;
            } else {
D
Daniel P. Berrange 已提交
2879
                if (virBufferVSprintf(buf, "      <source port='%d'/>\n",
2880 2881 2882
                                      net->dst.socket.port) < 0)
                    goto no_memory;
            }
2883 2884
        }

D
Daniel P. Berrange 已提交
2885
        if (virBufferVSprintf(buf, "    </interface>\n") < 0)
D
Daniel P. Berrange 已提交
2886 2887
            goto no_memory;

2888
        net = net->next;
D
Daniel P. Berrange 已提交
2889 2890
    }

2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903
    input = def->inputs;
    while (input) {
        if (input->bus != QEMU_INPUT_BUS_PS2 &&
            virBufferVSprintf(buf, "    <input type='%s' bus='usb'/>\n",
                              input->type == QEMU_INPUT_TYPE_MOUSE ? "mouse" : "tablet") < 0)
            goto no_memory;
        input = input->next;
    }
    /* If graphics is enable, add implicit mouse */
    if (def->graphicsType != QEMUD_GRAPHICS_NONE)
        if (virBufferAdd(buf, "    <input type='mouse' bus='ps2'/>\n", -1) < 0)
            goto no_memory;

2904 2905
    switch (def->graphicsType) {
    case QEMUD_GRAPHICS_VNC:
D
Daniel P. Berrange 已提交
2906
        if (virBufferAdd(buf, "    <graphics type='vnc'", -1) < 0)
2907 2908 2909
            goto no_memory;

        if (def->vncPort &&
D
Daniel P. Berrange 已提交
2910
            virBufferVSprintf(buf, " port='%d'",
2911
                              qemudIsActiveVM(vm) && live ? def->vncActivePort : def->vncPort) < 0)
2912 2913
            goto no_memory;

2914 2915 2916 2917 2918
        if (def->vncListen[0] &&
            virBufferVSprintf(buf, " listen='%s'",
                              def->vncListen) < 0)
            goto no_memory;

D
Daniel P. Berrange 已提交
2919
        if (virBufferAdd(buf, "/>\n", -1) < 0)
2920 2921 2922 2923
            goto no_memory;
        break;

    case QEMUD_GRAPHICS_SDL:
D
Daniel P. Berrange 已提交
2924
        if (virBufferAdd(buf, "    <graphics type='sdl'/>\n", -1) < 0)
2925 2926 2927 2928 2929 2930 2931 2932
            goto no_memory;
        break;

    case QEMUD_GRAPHICS_NONE:
    default:
        break;
    }

2933
    if (def->graphicsType == QEMUD_GRAPHICS_VNC) {
D
Daniel P. Berrange 已提交
2934 2935
    }

D
Daniel P. Berrange 已提交
2936
    if (virBufferAdd(buf, "  </devices>\n", -1) < 0)
D
Daniel P. Berrange 已提交
2937 2938 2939
        goto no_memory;


D
Daniel P. Berrange 已提交
2940
    if (virBufferAdd(buf, "</domain>\n", -1) < 0)
D
Daniel P. Berrange 已提交
2941 2942
        goto no_memory;

D
Daniel P. Berrange 已提交
2943
    return virBufferContentAndFree (buf);
D
Daniel P. Berrange 已提交
2944 2945

 no_memory:
2946
    qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "xml");
D
Daniel P. Berrange 已提交
2947
 cleanup:
D
Daniel P. Berrange 已提交
2948
    if (buf) virBufferFree (buf);
D
Daniel P. Berrange 已提交
2949 2950 2951 2952
    return NULL;
}


2953 2954
char *qemudGenerateNetworkXML(virConnectPtr conn,
                              struct qemud_driver *driver ATTRIBUTE_UNUSED,
2955
                              struct qemud_network *network,
2956
                              struct qemud_network_def *def) {
D
Daniel P. Berrange 已提交
2957
    virBufferPtr buf = 0;
2958
    unsigned char *uuid;
2959
    char uuidstr[VIR_UUID_STRING_BUFLEN];
2960

D
Daniel P. Berrange 已提交
2961
    buf = virBufferNew (QEMUD_MAX_XML_LEN);
2962
    if (!buf)
2963 2964
        goto no_memory;

D
Daniel P. Berrange 已提交
2965
    if (virBufferVSprintf(buf, "<network>\n") < 0)
2966 2967
        goto no_memory;

D
Daniel P. Berrange 已提交
2968
    if (virBufferVSprintf(buf, "  <name>%s</name>\n", def->name) < 0)
2969 2970
        goto no_memory;

2971
    uuid = def->uuid;
2972 2973
    virUUIDFormat(uuid, uuidstr);
    if (virBufferVSprintf(buf, "  <uuid>%s</uuid>\n", uuidstr) < 0)
2974 2975
        goto no_memory;

2976 2977
    if (def->forward) {
        if (def->forwardDev[0]) {
D
Daniel P. Berrange 已提交
2978
            virBufferVSprintf(buf, "  <forward dev='%s'/>\n",
2979 2980
                              def->forwardDev);
        } else {
D
Daniel P. Berrange 已提交
2981
            virBufferAdd(buf, "  <forward/>\n", -1);
2982 2983 2984
        }
    }

D
Daniel P. Berrange 已提交
2985
    virBufferAdd(buf, "  <bridge", -1);
2986
    if (qemudIsActiveNetwork(network)) {
D
Daniel P. Berrange 已提交
2987
        if (virBufferVSprintf(buf, " name='%s'", network->bridge) < 0)
2988 2989
            goto no_memory;
    } else if (def->bridge[0]) {
D
Daniel P. Berrange 已提交
2990
        if (virBufferVSprintf(buf, " name='%s'", def->bridge) < 0)
2991 2992
            goto no_memory;
    }
D
Daniel P. Berrange 已提交
2993
    if (virBufferVSprintf(buf, " stp='%s' forwardDelay='%d' />\n",
2994 2995
                       def->disableSTP ? "off" : "on",
                       def->forwardDelay) < 0)
2996 2997
        goto no_memory;

2998
    if (def->ipAddress[0] || def->netmask[0]) {
D
Daniel P. Berrange 已提交
2999
        if (virBufferAdd(buf, "  <ip", -1) < 0)
3000 3001
            goto no_memory;

3002
        if (def->ipAddress[0] &&
D
Daniel P. Berrange 已提交
3003
            virBufferVSprintf(buf, " address='%s'", def->ipAddress) < 0)
3004 3005
            goto no_memory;

3006
        if (def->netmask[0] &&
D
Daniel P. Berrange 已提交
3007
            virBufferVSprintf(buf, " netmask='%s'", def->netmask) < 0)
3008 3009
            goto no_memory;

D
Daniel P. Berrange 已提交
3010
        if (virBufferAdd(buf, ">\n", -1) < 0)
3011 3012
            goto no_memory;

3013 3014
        if (def->ranges) {
            struct qemud_dhcp_range_def *range = def->ranges;
D
Daniel P. Berrange 已提交
3015
            if (virBufferAdd(buf, "    <dhcp>\n", -1) < 0)
3016 3017
                goto no_memory;
            while (range) {
D
Daniel P. Berrange 已提交
3018
                if (virBufferVSprintf(buf, "      <range start='%s' end='%s' />\n",
3019 3020 3021 3022
                                      range->start, range->end) < 0)
                    goto no_memory;
                range = range->next;
            }
D
Daniel P. Berrange 已提交
3023
            if (virBufferAdd(buf, "    </dhcp>\n", -1) < 0)
3024 3025 3026
                goto no_memory;
        }

D
Daniel P. Berrange 已提交
3027
        if (virBufferAdd(buf, "  </ip>\n", -1) < 0)
3028
            goto no_memory;
D
Daniel P. Berrange 已提交
3029 3030
    }

D
Daniel P. Berrange 已提交
3031
    if (virBufferAdd(buf, "</network>\n", -1) < 0)
3032 3033
        goto no_memory;

D
Daniel P. Berrange 已提交
3034
    return virBufferContentAndFree (buf);
3035 3036

 no_memory:
3037
    qemudReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "xml");
D
Daniel P. Berrange 已提交
3038
    if (buf) virBufferFree (buf);
3039 3040 3041 3042
    return NULL;
}


3043 3044
int qemudDeleteConfig(virConnectPtr conn,
                      struct qemud_driver *driver ATTRIBUTE_UNUSED,
3045 3046 3047
                      const char *configFile,
                      const char *name) {
    if (!configFile[0]) {
3048
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "no config file for %s", name);
D
Daniel P. Berrange 已提交
3049 3050 3051
        return -1;
    }

3052
    if (unlink(configFile) < 0) {
3053
        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "cannot remove config for %s", name);
3054 3055
        return -1;
    }
3056

D
Daniel P. Berrange 已提交
3057 3058 3059
    return 0;
}

3060
#endif /* WITH_QEMU */
D
Daniel P. Berrange 已提交
3061 3062 3063 3064 3065 3066 3067 3068 3069

/*
 * Local variables:
 *  indent-tabs-mode: nil
 *  c-indent-level: 4
 *  c-basic-offset: 4
 *  tab-width: 4
 * End:
 */