/* * domain_conf.c: domain XML processing * * Copyright (C) 2006-2008 Red Hat, Inc. * Copyright (C) 2006-2008 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 */ #include #include #include #include #include #include #include "internal.h" #include "domain_conf.h" #include "memory.h" #include "verify.h" #include "xml.h" #include "uuid.h" #include "util.h" #include "buf.h" #include "c-ctype.h" VIR_ENUM_IMPL(virDomainVirt, VIR_DOMAIN_VIRT_LAST, "qemu", "kqemu", "kvm", "xen", "lxc", "uml", "openvz", "vserver", "ldom", "test", "vmware", "hyperv") VIR_ENUM_IMPL(virDomainBoot, VIR_DOMAIN_BOOT_LAST, "fd", "cdrom", "hd", "network") VIR_ENUM_IMPL(virDomainFeature, VIR_DOMAIN_FEATURE_LAST, "acpi", "apic", "pae") VIR_ENUM_IMPL(virDomainLifecycle, VIR_DOMAIN_LIFECYCLE_LAST, "destroy", "restart", "rename-restart", "preserve") VIR_ENUM_IMPL(virDomainDisk, VIR_DOMAIN_DISK_TYPE_LAST, "block", "file") VIR_ENUM_IMPL(virDomainDiskDevice, VIR_DOMAIN_DISK_DEVICE_LAST, "disk", "cdrom", "floppy") VIR_ENUM_IMPL(virDomainDiskBus, VIR_DOMAIN_DISK_BUS_LAST, "ide", "fdc", "scsi", "virtio", "xen", "usb") VIR_ENUM_IMPL(virDomainFS, VIR_DOMAIN_FS_TYPE_LAST, "mount", "block", "file", "template") VIR_ENUM_IMPL(virDomainNet, VIR_DOMAIN_NET_TYPE_LAST, "user", "ethernet", "server", "client", "mcast", "network", "bridge") VIR_ENUM_IMPL(virDomainChr, VIR_DOMAIN_CHR_TYPE_LAST, "null", "vc", "pty", "dev", "file", "pipe", "stdio", "udp", "tcp", "unix") VIR_ENUM_IMPL(virDomainSoundModel, VIR_DOMAIN_SOUND_MODEL_LAST, "sb16", "es1370", "pcspk"); VIR_ENUM_IMPL(virDomainInput, VIR_DOMAIN_INPUT_TYPE_LAST, "mouse", "tablet") VIR_ENUM_IMPL(virDomainInputBus, VIR_DOMAIN_INPUT_BUS_LAST, "ps2", "usb", "xen") VIR_ENUM_IMPL(virDomainGraphics, VIR_DOMAIN_GRAPHICS_TYPE_LAST, "sdl", "vnc") VIR_ENUM_IMPL(virDomainHostdevMode, VIR_DOMAIN_HOSTDEV_MODE_LAST, "subsystem", "capabilities") VIR_ENUM_IMPL(virDomainHostdevSubsys, VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_LAST, "usb", "pci") static void virDomainReportError(virConnectPtr conn, int code, const char *fmt, ...) ATTRIBUTE_FORMAT(printf, 3, 4); static void virDomainReportError(virConnectPtr conn, int code, const char *fmt, ...) { va_list args; char errorMessage[1024]; const char *virerr; if (fmt) { va_start(args, fmt); vsnprintf(errorMessage, sizeof(errorMessage)-1, fmt, args); va_end(args); } else { errorMessage[0] = '\0'; } virerr = __virErrorMsg(code, (errorMessage[0] ? errorMessage : NULL)); __virRaiseError(conn, NULL, NULL, VIR_FROM_DOMAIN, code, VIR_ERR_ERROR, virerr, errorMessage, NULL, -1, -1, virerr, errorMessage); } virDomainObjPtr virDomainFindByID(const virDomainObjPtr doms, int id) { virDomainObjPtr dom = doms; while (dom) { if (virDomainIsActive(dom) && dom->def->id == id) return dom; dom = dom->next; } return NULL; } virDomainObjPtr virDomainFindByUUID(const virDomainObjPtr doms, const unsigned char *uuid) { virDomainObjPtr dom = doms; while (dom) { if (!memcmp(dom->def->uuid, uuid, VIR_UUID_BUFLEN)) return dom; dom = dom->next; } return NULL; } virDomainObjPtr virDomainFindByName(const virDomainObjPtr doms, const char *name) { virDomainObjPtr dom = doms; while (dom) { if (STREQ(dom->def->name, name)) return dom; dom = dom->next; } return NULL; } void virDomainGraphicsDefFree(virDomainGraphicsDefPtr def) { if (!def) return; switch (def->type) { case VIR_DOMAIN_GRAPHICS_TYPE_VNC: VIR_FREE(def->data.vnc.listenAddr); VIR_FREE(def->data.vnc.keymap); VIR_FREE(def->data.vnc.passwd); break; case VIR_DOMAIN_GRAPHICS_TYPE_SDL: VIR_FREE(def->data.sdl.display); VIR_FREE(def->data.sdl.xauth); break; } VIR_FREE(def); } void virDomainInputDefFree(virDomainInputDefPtr def) { if (!def) return; virDomainInputDefFree(def->next); VIR_FREE(def); } void virDomainDiskDefFree(virDomainDiskDefPtr def) { if (!def) return; VIR_FREE(def->src); VIR_FREE(def->dst); VIR_FREE(def->driverName); VIR_FREE(def->driverType); virDomainDiskDefFree(def->next); VIR_FREE(def); } void virDomainFSDefFree(virDomainFSDefPtr def) { if (!def) return; VIR_FREE(def->src); VIR_FREE(def->dst); virDomainFSDefFree(def->next); VIR_FREE(def); } void virDomainNetDefFree(virDomainNetDefPtr def) { if (!def) return; VIR_FREE(def->model); switch (def->type) { case VIR_DOMAIN_NET_TYPE_ETHERNET: VIR_FREE(def->data.ethernet.dev); VIR_FREE(def->data.ethernet.script); VIR_FREE(def->data.ethernet.ipaddr); break; case VIR_DOMAIN_NET_TYPE_SERVER: case VIR_DOMAIN_NET_TYPE_CLIENT: case VIR_DOMAIN_NET_TYPE_MCAST: VIR_FREE(def->data.socket.address); break; case VIR_DOMAIN_NET_TYPE_NETWORK: VIR_FREE(def->data.network.name); break; case VIR_DOMAIN_NET_TYPE_BRIDGE: VIR_FREE(def->data.bridge.brname); break; } VIR_FREE(def->ifname); virDomainNetDefFree(def->next); VIR_FREE(def); } void virDomainChrDefFree(virDomainChrDefPtr def) { if (!def) return; switch (def->type) { case VIR_DOMAIN_CHR_TYPE_PTY: case VIR_DOMAIN_CHR_TYPE_DEV: case VIR_DOMAIN_CHR_TYPE_FILE: case VIR_DOMAIN_CHR_TYPE_PIPE: VIR_FREE(def->data.file.path); break; case VIR_DOMAIN_CHR_TYPE_UDP: VIR_FREE(def->data.udp.bindHost); VIR_FREE(def->data.udp.bindService); VIR_FREE(def->data.udp.connectHost); VIR_FREE(def->data.udp.connectService); break; case VIR_DOMAIN_CHR_TYPE_TCP: VIR_FREE(def->data.tcp.host); VIR_FREE(def->data.tcp.service); break; case VIR_DOMAIN_CHR_TYPE_UNIX: VIR_FREE(def->data.nix.path); break; } virDomainChrDefFree(def->next); VIR_FREE(def); } void virDomainSoundDefFree(virDomainSoundDefPtr def) { if (!def) return; virDomainSoundDefFree(def->next); VIR_FREE(def); } void virDomainHostdevDefFree(virDomainHostdevDefPtr def) { if (!def) return; VIR_FREE(def->target); virDomainHostdevDefFree(def->next); VIR_FREE(def); } void virDomainDeviceDefFree(virDomainDeviceDefPtr def) { if (!def) return; switch (def->type) { case VIR_DOMAIN_DEVICE_DISK: virDomainDiskDefFree(def->data.disk); break; case VIR_DOMAIN_DEVICE_NET: virDomainNetDefFree(def->data.net); break; case VIR_DOMAIN_DEVICE_INPUT: virDomainInputDefFree(def->data.input); break; case VIR_DOMAIN_DEVICE_SOUND: virDomainSoundDefFree(def->data.sound); break; case VIR_DOMAIN_DEVICE_HOSTDEV: virDomainHostdevDefFree(def->data.hostdev); break; } VIR_FREE(def); } void virDomainDefFree(virDomainDefPtr def) { if (!def) return; virDomainGraphicsDefFree(def->graphics); virDomainInputDefFree(def->inputs); virDomainDiskDefFree(def->disks); virDomainFSDefFree(def->fss); virDomainNetDefFree(def->nets); virDomainChrDefFree(def->serials); virDomainChrDefFree(def->parallels); virDomainChrDefFree(def->console); virDomainSoundDefFree(def->sounds); virDomainHostdevDefFree(def->hostdevs); VIR_FREE(def->os.type); VIR_FREE(def->os.arch); VIR_FREE(def->os.machine); VIR_FREE(def->os.init); VIR_FREE(def->os.kernel); VIR_FREE(def->os.initrd); VIR_FREE(def->os.cmdline); VIR_FREE(def->os.root); VIR_FREE(def->os.loader); VIR_FREE(def->os.bootloader); VIR_FREE(def->os.bootloaderArgs); VIR_FREE(def->name); VIR_FREE(def->cpumask); VIR_FREE(def->emulator); VIR_FREE(def); } void virDomainObjFree(virDomainObjPtr dom) { if (!dom) return; virDomainDefFree(dom->def); virDomainDefFree(dom->newDef); VIR_FREE(dom->vcpupids); VIR_FREE(dom); } virDomainObjPtr virDomainAssignDef(virConnectPtr conn, virDomainObjPtr *doms, const virDomainDefPtr def) { virDomainObjPtr domain; if ((domain = virDomainFindByName(*doms, def->name))) { if (!virDomainIsActive(domain)) { virDomainDefFree(domain->def); domain->def = def; } else { if (domain->newDef) virDomainDefFree(domain->newDef); domain->newDef = def; } return domain; } if (VIR_ALLOC(domain) < 0) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); return NULL; } domain->state = VIR_DOMAIN_SHUTOFF; domain->def = def; domain->next = *doms; *doms = domain; return domain; } void virDomainRemoveInactive(virDomainObjPtr *doms, virDomainObjPtr dom) { virDomainObjPtr prev = NULL; virDomainObjPtr curr = *doms; while (curr && curr != dom) { prev = curr; curr = curr->next; } if (curr) { if (prev) prev->next = curr->next; else *doms = curr->next; } virDomainObjFree(dom); } #ifndef PROXY static int virDomainDiskCompare(virDomainDiskDefPtr a, virDomainDiskDefPtr b) { if (a->bus == b->bus) return virDiskNameToIndex(a->dst) - virDiskNameToIndex(b->dst); else return a->bus - b->bus; } /* Parse the XML definition for a disk * @param node XML nodeset to parse for disk definition */ static virDomainDiskDefPtr virDomainDiskDefParseXML(virConnectPtr conn, xmlNodePtr node) { virDomainDiskDefPtr def; xmlNodePtr cur; char *type = NULL; char *device = NULL; char *driverName = NULL; char *driverType = NULL; char *source = NULL; char *target = NULL; char *bus = NULL; if (VIR_ALLOC(def) < 0) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); return NULL; } type = virXMLPropString(node, "type"); if (type) { if ((def->type = virDomainDiskTypeFromString(type)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unknown disk type '%s'"), type); goto error; } } else { def->type = VIR_DOMAIN_DISK_TYPE_FILE; } cur = node->children; while (cur != NULL) { if (cur->type == XML_ELEMENT_NODE) { if ((source == NULL) && (xmlStrEqual(cur->name, BAD_CAST "source"))) { if (def->type == VIR_DOMAIN_DISK_TYPE_FILE) source = virXMLPropString(cur, "file"); else source = virXMLPropString(cur, "dev"); } else if ((target == NULL) && (xmlStrEqual(cur->name, BAD_CAST "target"))) { target = virXMLPropString(cur, "dev"); bus = virXMLPropString(cur, "bus"); /* HACK: Work around for compat with Xen * driver in previous libvirt releases */ if (target && STRPREFIX(target, "ioemu:")) memmove(target, target+6, strlen(target)-5); } else if ((driverName == NULL) && (xmlStrEqual(cur->name, BAD_CAST "driver"))) { driverName = virXMLPropString(cur, "name"); driverType = virXMLPropString(cur, "type"); } else if (xmlStrEqual(cur->name, BAD_CAST "readonly")) { def->readonly = 1; } else if (xmlStrEqual(cur->name, BAD_CAST "shareable")) { def->shared = 1; } } cur = cur->next; } device = virXMLPropString(node, "device"); if (device) { if ((def->device = virDomainDiskDeviceTypeFromString(device)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unknown disk device '%s'"), device); goto error; } } else { def->device = VIR_DOMAIN_DISK_DEVICE_DISK; } /* Only CDROM and Floppy devices are allowed missing source path * to indicate no media present */ if (source == NULL && def->device != VIR_DOMAIN_DISK_DEVICE_CDROM && def->device != VIR_DOMAIN_DISK_DEVICE_FLOPPY) { virDomainReportError(conn, VIR_ERR_NO_SOURCE, target ? "%s" : NULL, target); goto error; } if (target == NULL) { virDomainReportError(conn, VIR_ERR_NO_TARGET, source ? "%s" : NULL, source); goto error; } if (def->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY && !STRPREFIX(target, "fd")) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("Invalid floppy device name: %s"), target); goto error; } /* Force CDROM to be listed as read only */ if (def->device == VIR_DOMAIN_DISK_DEVICE_CDROM) def->readonly = 1; if (def->device == VIR_DOMAIN_DISK_DEVICE_DISK && !STRPREFIX((const char *)target, "hd") && !STRPREFIX((const char *)target, "sd") && !STRPREFIX((const char *)target, "vd") && !STRPREFIX((const char *)target, "xvd")) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("Invalid harddisk device name: %s"), target); goto error; } if (bus) { if ((def->bus = virDomainDiskBusTypeFromString(bus)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unknown disk bus type '%s'"), bus); goto error; } } else { if (def->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY) { def->bus = VIR_DOMAIN_DISK_BUS_FDC; } else { if (STRPREFIX(target, "hd")) def->bus = VIR_DOMAIN_DISK_BUS_IDE; else if (STRPREFIX(target, "sd")) def->bus = VIR_DOMAIN_DISK_BUS_SCSI; else if (STRPREFIX(target, "vd")) def->bus = VIR_DOMAIN_DISK_BUS_VIRTIO; else if (STRPREFIX(target, "xvd")) def->bus = VIR_DOMAIN_DISK_BUS_XEN; else def->bus = VIR_DOMAIN_DISK_BUS_IDE; } } if (def->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY && def->bus != VIR_DOMAIN_DISK_BUS_FDC) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("Invalid bus type '%s' for floppy disk"), bus); goto error; } if (def->device != VIR_DOMAIN_DISK_DEVICE_FLOPPY && def->bus == VIR_DOMAIN_DISK_BUS_FDC) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("Invalid bus type '%s' for disk"), bus); goto error; } def->src = source; source = NULL; def->dst = target; target = NULL; def->driverName = driverName; driverName = NULL; def->driverType = driverType; driverType = NULL; cleanup: VIR_FREE(bus); VIR_FREE(type); VIR_FREE(target); VIR_FREE(source); VIR_FREE(device); VIR_FREE(driverType); VIR_FREE(driverName); return def; error: virDomainDiskDefFree(def); def = NULL; goto cleanup; } /* Parse the XML definition for a disk * @param node XML nodeset to parse for disk definition */ static virDomainFSDefPtr virDomainFSDefParseXML(virConnectPtr conn, xmlNodePtr node) { virDomainFSDefPtr def; xmlNodePtr cur; char *type = NULL; char *source = NULL; char *target = NULL; if (VIR_ALLOC(def) < 0) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); return NULL; } type = virXMLPropString(node, "type"); if (type) { if ((def->type = virDomainFSTypeFromString(type)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unknown filesystem type '%s'"), type); goto error; } } else { def->type = VIR_DOMAIN_FS_TYPE_MOUNT; } cur = node->children; while (cur != NULL) { if (cur->type == XML_ELEMENT_NODE) { if ((source == NULL) && (xmlStrEqual(cur->name, BAD_CAST "source"))) { if (def->type == VIR_DOMAIN_FS_TYPE_MOUNT) source = virXMLPropString(cur, "dir"); else if (def->type == VIR_DOMAIN_FS_TYPE_FILE) source = virXMLPropString(cur, "file"); else if (def->type == VIR_DOMAIN_FS_TYPE_BLOCK) source = virXMLPropString(cur, "dev"); else if (def->type == VIR_DOMAIN_FS_TYPE_TEMPLATE) source = virXMLPropString(cur, "name"); } else if ((target == NULL) && (xmlStrEqual(cur->name, BAD_CAST "target"))) { target = virXMLPropString(cur, "dir"); } else if (xmlStrEqual(cur->name, BAD_CAST "readonly")) { def->readonly = 1; } } cur = cur->next; } if (source == NULL) { virDomainReportError(conn, VIR_ERR_NO_SOURCE, target ? "%s" : NULL, target); goto error; } if (target == NULL) { virDomainReportError(conn, VIR_ERR_NO_TARGET, source ? "%s" : NULL, source); goto error; } def->src = source; source = NULL; def->dst = target; target = NULL; cleanup: VIR_FREE(type); VIR_FREE(target); VIR_FREE(source); return def; error: virDomainFSDefFree(def); def = NULL; goto cleanup; } static void virDomainNetRandomMAC(virDomainNetDefPtr def) { /* XXX there different vendor prefixes per hypervisor */ def->mac[0] = 0x52; def->mac[1] = 0x54; def->mac[2] = 0x00; def->mac[3] = 1 + (int)(256*(rand()/(RAND_MAX+1.0))); def->mac[4] = 1 + (int)(256*(rand()/(RAND_MAX+1.0))); def->mac[5] = 1 + (int)(256*(rand()/(RAND_MAX+1.0))); } /* Parse the XML definition for a network interface * @param node XML nodeset to parse for net definition * @return 0 on success, -1 on failure */ virDomainNetDefPtr virDomainNetDefParseXML(virConnectPtr conn, xmlNodePtr node) { virDomainNetDefPtr def; xmlNodePtr cur; char *macaddr = NULL; char *type = NULL; char *network = NULL; char *bridge = NULL; char *dev = NULL; char *ifname = NULL; char *script = NULL; char *address = NULL; char *port = NULL; char *model = NULL; if (VIR_ALLOC(def) < 0) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); return NULL; } type = virXMLPropString(node, "type"); if (type != NULL) { if ((def->type = virDomainNetTypeFromString(type)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unknown interface type '%s'"), type); goto error; } } else { def->type = VIR_DOMAIN_NET_TYPE_USER; } cur = node->children; while (cur != NULL) { if (cur->type == XML_ELEMENT_NODE) { if ((macaddr == NULL) && (xmlStrEqual(cur->name, BAD_CAST "mac"))) { macaddr = virXMLPropString(cur, "address"); } else if ((network == NULL) && (def->type == VIR_DOMAIN_NET_TYPE_NETWORK) && (xmlStrEqual(cur->name, BAD_CAST "source"))) { network = virXMLPropString(cur, "network"); } else if ((network == NULL) && (def->type == VIR_DOMAIN_NET_TYPE_BRIDGE) && (xmlStrEqual(cur->name, BAD_CAST "source"))) { bridge = virXMLPropString(cur, "bridge"); } else if ((dev == NULL) && (def->type == VIR_DOMAIN_NET_TYPE_ETHERNET) && xmlStrEqual(cur->name, BAD_CAST "source")) { dev = virXMLPropString(cur, "dev"); } else if ((network == NULL) && ((def->type == VIR_DOMAIN_NET_TYPE_SERVER) || (def->type == VIR_DOMAIN_NET_TYPE_CLIENT) || (def->type == VIR_DOMAIN_NET_TYPE_MCAST)) && (xmlStrEqual(cur->name, BAD_CAST "source"))) { address = virXMLPropString(cur, "address"); port = virXMLPropString(cur, "port"); } else if ((address == NULL) && (def->type == VIR_DOMAIN_NET_TYPE_ETHERNET) && (xmlStrEqual(cur->name, BAD_CAST "ip"))) { address = virXMLPropString(cur, "address"); } else if ((ifname == NULL) && xmlStrEqual(cur->name, BAD_CAST "target")) { ifname = virXMLPropString(cur, "dev"); if (STRPREFIX((const char*)ifname, "vnet")) { /* An auto-generated target name, blank it out */ VIR_FREE(ifname); } } else if ((script == NULL) && (def->type == VIR_DOMAIN_NET_TYPE_ETHERNET) && xmlStrEqual(cur->name, BAD_CAST "script")) { script = virXMLPropString(cur, "path"); } else if (xmlStrEqual (cur->name, BAD_CAST "model")) { model = virXMLPropString(cur, "type"); } } cur = cur->next; } if (macaddr) { unsigned int mac[6]; sscanf((const char *)macaddr, "%02x:%02x:%02x:%02x:%02x:%02x", (unsigned int*)&mac[0], (unsigned int*)&mac[1], (unsigned int*)&mac[2], (unsigned int*)&mac[3], (unsigned int*)&mac[4], (unsigned int*)&mac[5]); def->mac[0] = mac[0]; def->mac[1] = mac[1]; def->mac[2] = mac[2]; def->mac[3] = mac[3]; def->mac[4] = mac[4]; def->mac[5] = mac[5]; } else { virDomainNetRandomMAC(def); } switch (def->type) { case VIR_DOMAIN_NET_TYPE_NETWORK: if (network == NULL) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("No 'network' attribute specified with ")); goto error; } def->data.network.name = network; network = NULL; break; case VIR_DOMAIN_NET_TYPE_ETHERNET: if (script != NULL) { def->data.ethernet.script = script; script = NULL; } if (dev != NULL) { def->data.ethernet.dev = dev; dev = NULL; } if (address != NULL) { def->data.ethernet.ipaddr = address; address = NULL; } break; case VIR_DOMAIN_NET_TYPE_BRIDGE: if (bridge == NULL) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("No 'dev' attribute specified with ")); goto error; } def->data.bridge.brname = bridge; bridge = NULL; break; case VIR_DOMAIN_NET_TYPE_CLIENT: case VIR_DOMAIN_NET_TYPE_SERVER: case VIR_DOMAIN_NET_TYPE_MCAST: if (port == NULL) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("No 'port' attribute specified with socket interface")); goto error; } if (virStrToLong_i(port, NULL, 10, &def->data.socket.port) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("Cannot parse 'port' attribute with socket interface")); goto error; } if (address == NULL) { if (def->type == VIR_DOMAIN_NET_TYPE_CLIENT || def->type == VIR_DOMAIN_NET_TYPE_MCAST) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("No 'address' attribute specified with socket interface")); goto error; } } else { def->data.socket.address = address; address = NULL; } } if (ifname != NULL) { def->ifname = ifname; ifname = NULL; } /* NIC model (see -net nic,model=?). We only check that it looks * reasonable, not that it is a supported NIC type. FWIW kvm * supports these types as of April 2008: * i82551 i82557b i82559er ne2k_pci pcnet rtl8139 e1000 virtio */ if (model != NULL) { int i; for (i = 0 ; i < strlen(model) ; i++) { int char_ok = c_isalnum(model[i]) || model[i] == '_'; if (!char_ok) { virDomainReportError (conn, VIR_ERR_INVALID_ARG, "%s", _("Model name contains invalid characters")); goto error; } } def->model = model; model = NULL; } cleanup: VIR_FREE(macaddr); VIR_FREE(network); VIR_FREE(address); VIR_FREE(port); VIR_FREE(ifname); VIR_FREE(dev); VIR_FREE(script); VIR_FREE(bridge); VIR_FREE(model); VIR_FREE(type); return def; error: virDomainNetDefFree(def); def = NULL; goto cleanup; } /* Parse the XML definition for a character device * @param node XML nodeset to parse for net definition * * The XML we're dealing with looks like * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ static virDomainChrDefPtr virDomainChrDefParseXML(virConnectPtr conn, xmlNodePtr node) { xmlNodePtr cur; char *type = NULL; char *bindHost = NULL; char *bindService = NULL; char *connectHost = NULL; char *connectService = NULL; char *path = NULL; char *mode = NULL; char *protocol = NULL; virDomainChrDefPtr def; if (VIR_ALLOC(def) < 0) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); return NULL; } def->type = VIR_DOMAIN_CHR_TYPE_PTY; type = virXMLPropString(node, "type"); if (type != NULL) { if (STREQ(type, "null")) def->type = VIR_DOMAIN_CHR_TYPE_NULL; else if (STREQ(type, "vc")) def->type = VIR_DOMAIN_CHR_TYPE_VC; else if (STREQ(type, "pty")) def->type = VIR_DOMAIN_CHR_TYPE_PTY; else if (STREQ(type, "dev")) def->type = VIR_DOMAIN_CHR_TYPE_DEV; else if (STREQ(type, "file")) def->type = VIR_DOMAIN_CHR_TYPE_FILE; else if (STREQ(type, "pipe")) def->type = VIR_DOMAIN_CHR_TYPE_PIPE; else if (STREQ(type, "stdio")) def->type = VIR_DOMAIN_CHR_TYPE_STDIO; else if (STREQ(type, "udp")) def->type = VIR_DOMAIN_CHR_TYPE_UDP; else if (STREQ(type, "tcp")) def->type = VIR_DOMAIN_CHR_TYPE_TCP; else if (STREQ(type, "unix")) def->type = VIR_DOMAIN_CHR_TYPE_UNIX; else def->type = VIR_DOMAIN_CHR_TYPE_NULL; } cur = node->children; while (cur != NULL) { if (cur->type == XML_ELEMENT_NODE) { if (xmlStrEqual(cur->name, BAD_CAST "source")) { if (mode == NULL) mode = virXMLPropString(cur, "mode"); switch (def->type) { case VIR_DOMAIN_CHR_TYPE_PTY: case VIR_DOMAIN_CHR_TYPE_DEV: case VIR_DOMAIN_CHR_TYPE_FILE: case VIR_DOMAIN_CHR_TYPE_PIPE: case VIR_DOMAIN_CHR_TYPE_UNIX: if (path == NULL) path = virXMLPropString(cur, "path"); break; case VIR_DOMAIN_CHR_TYPE_UDP: case VIR_DOMAIN_CHR_TYPE_TCP: if (mode == NULL || STREQ((const char *)mode, "connect")) { if (connectHost == NULL) connectHost = virXMLPropString(cur, "host"); if (connectService == NULL) connectService = virXMLPropString(cur, "service"); } else { if (bindHost == NULL) bindHost = virXMLPropString(cur, "host"); if (bindService == NULL) bindService = virXMLPropString(cur, "service"); } if (def->type == VIR_DOMAIN_CHR_TYPE_UDP) VIR_FREE(mode); } } else if (xmlStrEqual(cur->name, BAD_CAST "protocol")) { if (protocol == NULL) protocol = virXMLPropString(cur, "type"); } } cur = cur->next; } switch (def->type) { case VIR_DOMAIN_CHR_TYPE_NULL: /* Nada */ break; case VIR_DOMAIN_CHR_TYPE_VC: break; case VIR_DOMAIN_CHR_TYPE_PTY: /* @path attribute is an output only property - pty is auto-allocted */ break; case VIR_DOMAIN_CHR_TYPE_DEV: case VIR_DOMAIN_CHR_TYPE_FILE: case VIR_DOMAIN_CHR_TYPE_PIPE: if (path == NULL) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("Missing source path attribute for char device")); goto error; } def->data.file.path = path; path = NULL; break; case VIR_DOMAIN_CHR_TYPE_STDIO: /* Nada */ break; case VIR_DOMAIN_CHR_TYPE_TCP: if (mode == NULL || STREQ(mode, "connect")) { if (connectHost == NULL) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("Missing source host attribute for char device")); goto error; } if (connectService == NULL) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("Missing source service attribute for char device")); goto error; } def->data.tcp.host = connectHost; connectHost = NULL; def->data.tcp.service = connectService; connectService = NULL; def->data.tcp.listen = 0; } else { if (bindHost == NULL) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("Missing source host attribute for char device")); goto error; } if (bindService == NULL) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("Missing source service attribute for char device")); goto error; } def->data.tcp.host = bindHost; bindHost = NULL; def->data.tcp.service = bindService; bindService = NULL; def->data.tcp.listen = 1; } if (protocol != NULL && STREQ(protocol, "telnet")) def->data.tcp.protocol = VIR_DOMAIN_CHR_TCP_PROTOCOL_TELNET; else def->data.tcp.protocol = VIR_DOMAIN_CHR_TCP_PROTOCOL_RAW; break; case VIR_DOMAIN_CHR_TYPE_UDP: if (connectService == NULL) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("Missing source service attribute for char device")); goto error; } def->data.udp.connectHost = connectHost; connectHost = NULL; def->data.udp.connectService = connectService; connectService = NULL; def->data.udp.bindHost = bindHost; bindHost = NULL; def->data.udp.bindService = bindService; bindService = NULL; break; case VIR_DOMAIN_CHR_TYPE_UNIX: if (path == NULL) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("Missing source path attribute for char device")); goto error; } if (mode != NULL && STRNEQ(mode, "connect")) def->data.nix.listen = 1; else def->data.nix.listen = 0; def->data.nix.path = path; path = NULL; break; } cleanup: VIR_FREE(mode); VIR_FREE(protocol); VIR_FREE(type); VIR_FREE(bindHost); VIR_FREE(bindService); VIR_FREE(connectHost); VIR_FREE(connectService); VIR_FREE(path); return def; error: virDomainChrDefFree(def); def = NULL; goto cleanup; } /* Parse the XML definition for a network interface */ static virDomainInputDefPtr virDomainInputDefParseXML(virConnectPtr conn, const char *ostype, xmlNodePtr node) { virDomainInputDefPtr def; char *type = NULL; char *bus = NULL; if (VIR_ALLOC(def) < 0) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); return NULL; } type = virXMLPropString(node, "type"); bus = virXMLPropString(node, "bus"); if (!type) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("missing input device type")); goto error; } if ((def->type = virDomainInputTypeFromString(type)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unknown input device type '%s'"), type); goto error; } if (bus) { if ((def->bus = virDomainInputBusTypeFromString(bus)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unknown input bus type '%s'"), bus); goto error; } if (STREQ(ostype, "hvm")) { if (def->bus == VIR_DOMAIN_INPUT_BUS_PS2 && /* Only allow mouse for ps2 */ def->type != VIR_DOMAIN_INPUT_TYPE_MOUSE) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("ps2 bus does not support %s input device"), type); goto error; } if (def->bus == VIR_DOMAIN_INPUT_BUS_XEN) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unsupported input bus %s"), bus); goto error; } } else { if (def->bus != VIR_DOMAIN_INPUT_BUS_XEN) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unsupported input bus %s"), bus); } if (def->type != VIR_DOMAIN_INPUT_TYPE_MOUSE) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("xen bus does not support %s input device"), type); goto error; } } } else { if (STREQ(ostype, "hvm")) { if (def->type == VIR_DOMAIN_INPUT_TYPE_MOUSE) def->bus = VIR_DOMAIN_INPUT_BUS_PS2; else def->bus = VIR_DOMAIN_INPUT_BUS_USB; } else { def->bus = VIR_DOMAIN_INPUT_BUS_XEN; } } cleanup: VIR_FREE(type); VIR_FREE(bus); return def; error: virDomainInputDefFree(def); def = NULL; goto cleanup; } /* Parse the XML definition for a graphics device */ static virDomainGraphicsDefPtr virDomainGraphicsDefParseXML(virConnectPtr conn, xmlNodePtr node) { virDomainGraphicsDefPtr def; char *type = NULL; if (VIR_ALLOC(def) < 0) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); return NULL; } type = virXMLPropString(node, "type"); if (!type) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("missing graphics device type")); goto error; } if ((def->type = virDomainGraphicsTypeFromString(type)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unknown graphics device type '%s'"), type); goto error; } if (def->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC) { char *port = virXMLPropString(node, "port"); char *autoport; if (port) { if (virStrToLong_i(port, NULL, 10, &def->data.vnc.port) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("cannot parse vnc port %s"), port); VIR_FREE(port); goto error; } VIR_FREE(port); /* Legacy compat syntax, used -1 for auto-port */ if (def->data.vnc.port == -1) { def->data.vnc.port = 0; def->data.vnc.autoport = 1; } } else { def->data.vnc.port = 0; def->data.vnc.autoport = 1; } if ((autoport = virXMLPropString(node, "autoport")) != NULL) { if (STREQ(autoport, "yes")) { def->data.vnc.port = 0; def->data.vnc.autoport = 1; } VIR_FREE(autoport); } def->data.vnc.listenAddr = virXMLPropString(node, "listen"); def->data.vnc.passwd = virXMLPropString(node, "passwd"); def->data.vnc.keymap = virXMLPropString(node, "keymap"); } else if (def->type == VIR_DOMAIN_GRAPHICS_TYPE_SDL) { def->data.sdl.xauth = virXMLPropString(node, "xauth"); def->data.sdl.display = virXMLPropString(node, "display"); } cleanup: VIR_FREE(type); return def; error: virDomainGraphicsDefFree(def); def = NULL; goto cleanup; } static virDomainSoundDefPtr virDomainSoundDefParseXML(virConnectPtr conn, const xmlNodePtr node) { char *model; virDomainSoundDefPtr def; if (VIR_ALLOC(def) < 0) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); return NULL; } model = virXMLPropString(node, "model"); if ((def->model = virDomainSoundModelTypeFromString(model)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unknown sound model '%s'"), model); goto error; } cleanup: VIR_FREE(model); return def; error: virDomainSoundDefFree(def); def = NULL; goto cleanup; } static int virDomainHostdevSubsysUsbDefParseXML(virConnectPtr conn, const xmlNodePtr node, virDomainHostdevDefPtr def) { int ret = -1; xmlNodePtr cur; cur = node->children; while (cur != NULL) { if (cur->type == XML_ELEMENT_NODE) { if (xmlStrEqual(cur->name, BAD_CAST "vendor")) { char *vendor = virXMLPropString(cur, "id"); if (vendor) { if (virStrToLong_ui(vendor, NULL, 0, &def->source.subsys.usb.vendor) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("cannot parse vendor id %s"), vendor); VIR_FREE(vendor); goto out; } VIR_FREE(vendor); } else { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("usb vendor needs id")); goto out; } } else if (xmlStrEqual(cur->name, BAD_CAST "product")) { char* product = virXMLPropString(cur, "id"); if (product) { if (virStrToLong_ui(product, NULL, 0, &def->source.subsys.usb.product) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("cannot parse product %s"), product); VIR_FREE(product); goto out; } VIR_FREE(product); } else { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("usb product needs id")); goto out; } } else if (xmlStrEqual(cur->name, BAD_CAST "address")) { char *bus, *device; bus = virXMLPropString(cur, "bus"); if (bus) { if (virStrToLong_ui(bus, NULL, 0, &def->source.subsys.usb.bus) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("cannot parse bus %s"), bus); VIR_FREE(bus); goto out; } VIR_FREE(bus); } else { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("usb address needs bus id")); goto out; } device = virXMLPropString(cur, "device"); if (device) { if (virStrToLong_ui(device, NULL, 0, &def->source.subsys.usb.device) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("cannot parse device %s"), device); VIR_FREE(device); goto out; } VIR_FREE(device); } else { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("usb address needs device id")); goto out; } } else { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unknown usb source type '%s'"), cur->name); goto out; } } cur = cur->next; } if (def->source.subsys.usb.vendor == 0 && def->source.subsys.usb.product != 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("missing vendor")); goto out; } if (def->source.subsys.usb.vendor != 0 && def->source.subsys.usb.product == 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("missing product")); goto out; } ret = 0; out: return ret; } static virDomainHostdevDefPtr virDomainHostdevDefParseXML(virConnectPtr conn, const xmlNodePtr node) { xmlNodePtr cur; virDomainHostdevDefPtr def; char *mode, *type = NULL; if (VIR_ALLOC(def) < 0) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); return NULL; } def->target = NULL; mode = virXMLPropString(node, "mode"); if (mode) { if ((def->mode=virDomainHostdevModeTypeFromString(mode)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unknown hostdev mode '%s'"), mode); goto error; } } else { def->mode = VIR_DOMAIN_HOSTDEV_MODE_SUBSYS; } type = virXMLPropString(node, "type"); if (type) { if ((def->source.subsys.type = virDomainHostdevSubsysTypeFromString(type)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unknown host device type '%s'"), type); goto error; } } else { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("missing type in hostdev")); goto error; } cur = node->children; while (cur != NULL) { if (cur->type == XML_ELEMENT_NODE) { if (xmlStrEqual(cur->name, BAD_CAST "source")) { if (def->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS && def->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB) { if (virDomainHostdevSubsysUsbDefParseXML(conn, cur, def) < 0) goto error; } } else { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unknown node %s"), cur->name); } } cur = cur->next; } cleanup: VIR_FREE(type); VIR_FREE(mode); return def; error: virDomainHostdevDefFree(def); def = NULL; goto cleanup; } static int virDomainLifecycleParseXML(virConnectPtr conn, xmlXPathContextPtr ctxt, const char *xpath, int *val, int defaultVal) { char *tmp = virXPathString(conn, xpath, ctxt); if (tmp == NULL) { *val = defaultVal; } else { *val = virDomainLifecycleTypeFromString(tmp); if (*val < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unknown lifecycle action %s"), tmp); VIR_FREE(tmp); return -1; } VIR_FREE(tmp); } return 0; } virDomainDeviceDefPtr virDomainDeviceDefParse(virConnectPtr conn, const virDomainDefPtr def, const char *xmlStr) { xmlDocPtr xml; xmlNodePtr node; virDomainDeviceDefPtr dev = NULL; if (!(xml = xmlReadDoc(BAD_CAST xmlStr, "device.xml", NULL, XML_PARSE_NOENT | XML_PARSE_NONET | XML_PARSE_NOERROR | XML_PARSE_NOWARNING))) { virDomainReportError(conn, VIR_ERR_XML_ERROR, NULL); goto error; } node = xmlDocGetRootElement(xml); if (node == NULL) { virDomainReportError(conn, VIR_ERR_XML_ERROR, "%s", _("missing root element")); goto error; } if (VIR_ALLOC(dev) < 0) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); goto error; } if (xmlStrEqual(node->name, BAD_CAST "disk")) { dev->type = VIR_DOMAIN_DEVICE_DISK; if (!(dev->data.disk = virDomainDiskDefParseXML(conn, node))) goto error; } else if (xmlStrEqual(node->name, BAD_CAST "filesystem")) { dev->type = VIR_DOMAIN_DEVICE_FS; if (!(dev->data.fs = virDomainFSDefParseXML(conn, node))) goto error; } else if (xmlStrEqual(node->name, BAD_CAST "interface")) { dev->type = VIR_DOMAIN_DEVICE_NET; if (!(dev->data.net = virDomainNetDefParseXML(conn, node))) goto error; } else if (xmlStrEqual(node->name, BAD_CAST "input")) { dev->type = VIR_DOMAIN_DEVICE_DISK; if (!(dev->data.input = virDomainInputDefParseXML(conn, def->os.type, node))) goto error; } else if (xmlStrEqual(node->name, BAD_CAST "sound")) { dev->type = VIR_DOMAIN_DEVICE_SOUND; if (!(dev->data.sound = virDomainSoundDefParseXML(conn, node))) goto error; } else if (xmlStrEqual(node->name, BAD_CAST "hostdev")) { dev->type = VIR_DOMAIN_DEVICE_HOSTDEV; if (!(dev->data.hostdev = virDomainHostdevDefParseXML(conn, node))) goto error; } else { virDomainReportError(conn, VIR_ERR_XML_ERROR, "%s", _("unknown device type")); goto error; } xmlFreeDoc(xml); return dev; error: xmlFreeDoc(xml); VIR_FREE(dev); return NULL; } static virDomainDefPtr virDomainDefParseXML(virConnectPtr conn, virCapsPtr caps, xmlXPathContextPtr ctxt) { xmlNodePtr *nodes = NULL, node = NULL; char *tmp = NULL; int i, n; virDomainDefPtr def; if (VIR_ALLOC(def) < 0) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, "%s", _("failed to allocate space for xmlXPathContext")); return NULL; } def->id = -1; /* Find out what type of virtualization to use */ if (!(tmp = virXPathString(conn, "string(./@type)", ctxt))) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("missing domain type attribute")); goto error; } if ((def->virtType = virDomainVirtTypeFromString(tmp)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("invalid domain type %s"), tmp); goto error; } VIR_FREE(tmp); /* Extract domain name */ if (!(def->name = virXPathString(conn, "string(./name[1])", ctxt))) { virDomainReportError(conn, VIR_ERR_NO_NAME, NULL); goto error; } /* Extract domain uuid */ tmp = virXPathString(conn, "string(./uuid[1])", ctxt); if (!tmp) { int err; if ((err = virUUIDGenerate(def->uuid))) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("Failed to generate UUID: %s"), strerror(err)); goto error; } } else { if (virUUIDParse(tmp, def->uuid) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("malformed uuid element")); goto error; } VIR_FREE(tmp); } /* Extract domain memory */ if (virXPathULong(conn, "string(./memory[1])", ctxt, &def->maxmem) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("missing memory element")); goto error; } if (virXPathULong(conn, "string(./currentMemory[1])", ctxt, &def->memory) < 0) def->memory = def->maxmem; if (virXPathULong(conn, "string(./vcpu[1])", ctxt, &def->vcpus) < 0) def->vcpus = 1; tmp = virXPathString(conn, "string(./vcpu[1]/@cpuset)", ctxt); if (tmp) { char *set = tmp; def->cpumasklen = VIR_DOMAIN_CPUMASK_LEN; if (VIR_ALLOC_N(def->cpumask, def->cpumasklen) < 0) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); goto error; } if (virDomainCpuSetParse(conn, (const char **)&set, 0, def->cpumask, def->cpumasklen) < 0) goto error; VIR_FREE(tmp); } if ((n = virXPathNodeSet(conn, "./features/*", ctxt, &nodes)) > 0) { for (i = 0 ; i < n ; i++) { int val = virDomainFeatureTypeFromString((const char *)nodes[i]->name); if (val < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unexpected feature %s"), nodes[i]->name); goto error; } def->features |= (1 << val); } } VIR_FREE(nodes); if (virDomainLifecycleParseXML(conn, ctxt, "string(./on_reboot[1])", &def->onReboot, VIR_DOMAIN_LIFECYCLE_RESTART) < 0) goto error; if (virDomainLifecycleParseXML(conn, ctxt, "string(./on_poweroff[1])", &def->onPoweroff, VIR_DOMAIN_LIFECYCLE_DESTROY) < 0) goto error; if (virDomainLifecycleParseXML(conn, ctxt, "string(./on_crash[1])", &def->onCrash, VIR_DOMAIN_LIFECYCLE_DESTROY) < 0) goto error; tmp = virXPathString(conn, "string(./clock/@offset)", ctxt); if (tmp && STREQ(tmp, "localtime")) def->localtime = 1; VIR_FREE(tmp); def->os.bootloader = virXPathString(conn, "string(./bootloader)", ctxt); def->os.bootloaderArgs = virXPathString(conn, "string(./bootloader_args)", ctxt); def->os.type = virXPathString(conn, "string(./os/type[1])", ctxt); if (!def->os.type) { if (def->os.bootloader) { def->os.type = strdup("xen"); if (!def->os.type) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); goto error; } } else { virDomainReportError(conn, VIR_ERR_OS_TYPE, "%s", _("no OS type")); goto error; } } /* * HACK: For xen driver we previously used bogus 'linux' as the * os type for paravirt, whereas capabilities declare it to * be 'xen'. So we accept the former and convert */ if (STREQ(def->os.type, "linux") && def->virtType == VIR_DOMAIN_VIRT_XEN) { VIR_FREE(def->os.type); if (!(def->os.type = strdup("xen"))) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); goto error; } } if (!virCapabilitiesSupportsGuestOSType(caps, def->os.type)) { virDomainReportError(conn, VIR_ERR_OS_TYPE, "%s", def->os.type); goto error; } def->os.arch = virXPathString(conn, "string(./os/type[1]/@arch)", ctxt); if (!def->os.arch) { const char *defaultArch = virCapabilitiesDefaultGuestArch(caps, def->os.type); if (defaultArch == NULL) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("no supported architecture for os type '%s'"), def->os.type); goto error; } if (!(def->os.arch = strdup(defaultArch))) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); goto error; } } def->os.machine = virXPathString(conn, "string(./os/type[1]/@machine)", ctxt); if (!def->os.machine) { const char *defaultMachine = virCapabilitiesDefaultGuestMachine(caps, def->os.type, def->os.arch); if (defaultMachine != NULL) { if (!(def->os.machine = strdup(defaultMachine))) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); goto error; } } } /* * Booting options for different OS types.... * * - A bootloader (and optional kernel+initrd) (xen) * - A kernel + initrd (xen) * - A boot device (and optional kernel+initrd) (hvm) * - An init script (exe) */ if (STREQ(def->os.type, "exe")) { def->os.init = virXPathString(conn, "string(./os/init[1])", ctxt); } if (STREQ(def->os.type, "xen") || STREQ(def->os.type, "hvm")) { def->os.kernel = virXPathString(conn, "string(./os/kernel[1])", ctxt); def->os.initrd = virXPathString(conn, "string(./os/initrd[1])", ctxt); def->os.cmdline = virXPathString(conn, "string(./os/cmdline[1])", ctxt); def->os.root = virXPathString(conn, "string(./os/root[1])", ctxt); def->os.loader = virXPathString(conn, "string(./os/loader[1])", ctxt); /* analysis of the boot devices */ if ((n = virXPathNodeSet(conn, "./os/boot", ctxt, &nodes)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("cannot extract boot device")); goto error; } for (i = 0 ; i < n && i < VIR_DOMAIN_BOOT_LAST ; i++) { int val; char *dev = virXMLPropString(nodes[i], "dev"); if (!dev) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("missing boot device")); goto error; } if ((val = virDomainBootTypeFromString(dev)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unknown boot device '%s'"), dev); VIR_FREE(dev); goto error; } VIR_FREE(dev); def->os.bootDevs[def->os.nBootDevs++] = val; } if (def->os.nBootDevs == 0) { def->os.nBootDevs = 1; def->os.bootDevs[0] = VIR_DOMAIN_BOOT_DISK; } VIR_FREE(nodes); } def->emulator = virXPathString(conn, "string(./devices/emulator[1])", ctxt); if (!def->emulator) { const char *type = virDomainVirtTypeToString(def->virtType); if (!type) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("unknown virt type")); goto error; } const char *emulator = virCapabilitiesDefaultGuestEmulator(caps, def->os.type, def->os.arch, type); if (emulator && !(def->emulator = strdup(emulator))) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); goto error; } } /* analysis of the disk devices */ if ((n = virXPathNodeSet(conn, "./devices/disk", ctxt, &nodes)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("cannot extract disk devices")); goto error; } for (i = 0 ; i < n ; i++) { virDomainDiskDefPtr disk = virDomainDiskDefParseXML(conn, nodes[i]); if (!disk) goto error; /* Maintain list in sorted order according to target device name */ if (def->disks == NULL) { disk->next = def->disks; def->disks = disk; } else { virDomainDiskDefPtr ptr = def->disks; while (ptr) { if (!ptr->next || virDomainDiskCompare(disk, ptr->next) < 0) { disk->next = ptr->next; ptr->next = disk; break; } ptr = ptr->next; } } } VIR_FREE(nodes); /* analysis of the filesystems */ if ((n = virXPathNodeSet(conn, "./devices/filesystem", ctxt, &nodes)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("cannot extract filesystem devices")); goto error; } for (i = n - 1 ; i >= 0 ; i--) { virDomainFSDefPtr fs = virDomainFSDefParseXML(conn, nodes[i]); if (!fs) goto error; fs->next = def->fss; def->fss = fs; } VIR_FREE(nodes); /* analysis of the network devices */ if ((n = virXPathNodeSet(conn, "./devices/interface", ctxt, &nodes)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("cannot extract network devices")); goto error; } for (i = n - 1 ; i >= 0 ; i--) { virDomainNetDefPtr net = virDomainNetDefParseXML(conn, nodes[i]); if (!net) goto error; net->next = def->nets; def->nets = net; } VIR_FREE(nodes); /* analysis of the character devices */ if ((n = virXPathNodeSet(conn, "./devices/parallel", ctxt, &nodes)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("cannot extract parallel devices")); goto error; } for (i = n - 1 ; i >= 0 ; i--) { virDomainChrDefPtr chr = virDomainChrDefParseXML(conn, nodes[i]); if (!chr) goto error; chr->dstPort = i; chr->next = def->parallels; def->parallels = chr; } VIR_FREE(nodes); if ((n = virXPathNodeSet(conn, "./devices/serial", ctxt, &nodes)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("cannot extract serial devices")); goto error; } for (i = n - 1 ; i >= 0 ; i--) { virDomainChrDefPtr chr = virDomainChrDefParseXML(conn, nodes[i]); if (!chr) goto error; chr->dstPort = i; chr->next = def->serials; def->serials = chr; } VIR_FREE(nodes); /* * If no serial devices were listed, then look for console * devices which is the legacy syntax for the same thing */ if (def->serials == NULL) { if ((node = virXPathNode(conn, "./devices/console[1]", ctxt)) != NULL) { virDomainChrDefPtr chr = virDomainChrDefParseXML(conn, node); if (!chr) goto error; chr->dstPort = 0; /* * For HVM console actually created a serial device * while for non-HVM it was a parvirt console */ if (STREQ(def->os.type, "hvm")) { chr->next = def->serials; def->serials = chr; } else { def->console = chr; } } } /* analysis of the input devices */ if ((n = virXPathNodeSet(conn, "./devices/input", ctxt, &nodes)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("cannot extract input devices")); goto error; } for (i = n - 1 ; i >= 0 ; i--) { virDomainInputDefPtr input = virDomainInputDefParseXML(conn, def->os.type, nodes[i]); if (!input) goto error; /* With QEMU / KVM / Xen graphics, mouse + PS/2 is implicit * with graphics, so don't store it. * XXX will this be true for other virt types ? */ if ((STREQ(def->os.type, "hvm") && input->bus == VIR_DOMAIN_INPUT_BUS_PS2 && input->type == VIR_DOMAIN_INPUT_TYPE_MOUSE) || (STRNEQ(def->os.type, "hvm") && input->bus == VIR_DOMAIN_INPUT_BUS_XEN && input->type == VIR_DOMAIN_INPUT_TYPE_MOUSE)) { virDomainInputDefFree(input); continue; } input->next = def->inputs; def->inputs = input; } VIR_FREE(nodes); /* analysis of the graphics devices */ if ((n = virXPathNodeSet(conn, "./devices/graphics", ctxt, &nodes)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("cannot extract graphics devices")); goto error; } if (n > 0) { virDomainGraphicsDefPtr graphics = virDomainGraphicsDefParseXML(conn, nodes[0]); if (!graphics) goto error; def->graphics = graphics; } VIR_FREE(nodes); /* If graphics are enabled, there's an implicit PS2 mouse */ if (def->graphics != NULL) { virDomainInputDefPtr input; if (VIR_ALLOC(input) < 0) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); goto error; } if (STREQ(def->os.type, "hvm")) { input->type = VIR_DOMAIN_INPUT_TYPE_MOUSE; input->bus = VIR_DOMAIN_INPUT_BUS_PS2; } else { input->type = VIR_DOMAIN_INPUT_TYPE_MOUSE; input->bus = VIR_DOMAIN_INPUT_BUS_XEN; } input->next = def->inputs; def->inputs = input; } /* analysis of the sound devices */ if ((n = virXPathNodeSet(conn, "./devices/sound", ctxt, &nodes)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("cannot extract sound devices")); goto error; } for (i = n - 1 ; i >= 0 ; i--) { int collision = 0; virDomainSoundDefPtr check; virDomainSoundDefPtr sound = virDomainSoundDefParseXML(conn, nodes[i]); if (!sound) goto error; /* Verify there's no duplicated sound card */ check = def->sounds; while (check) { if (check->model == sound->model) collision = 1; check = check->next; } if (collision) { virDomainSoundDefFree(sound); continue; } sound->next = def->sounds; def->sounds = sound; } VIR_FREE(nodes); /* analysis of the host devices */ if ((n = virXPathNodeSet(conn, "./devices/hostdev", ctxt, &nodes)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("cannot extract host devices")); goto error; } for (i = 0 ; i < n ; i++) { virDomainHostdevDefPtr hostdev = virDomainHostdevDefParseXML(conn, nodes[i]); if (!hostdev) goto error; hostdev->next = def->hostdevs; def->hostdevs = hostdev; } VIR_FREE(nodes); return def; error: VIR_FREE(tmp); VIR_FREE(nodes); virDomainDefFree(def); return NULL; } /* Called from SAX on parsing errors in the XML. */ static void catchXMLError (void *ctx, const char *msg ATTRIBUTE_UNUSED, ...) { xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx; if (ctxt) { virConnectPtr conn = ctxt->_private; if (conn && conn->err.code == VIR_ERR_NONE && ctxt->lastError.level == XML_ERR_FATAL && ctxt->lastError.message != NULL) { virDomainReportError (conn, VIR_ERR_XML_DETAIL, _("at line %d: %s"), ctxt->lastError.line, ctxt->lastError.message); } } } virDomainDefPtr virDomainDefParseString(virConnectPtr conn, virCapsPtr caps, const char *xmlStr) { xmlParserCtxtPtr pctxt; xmlDocPtr xml = NULL; xmlNodePtr root; virDomainDefPtr def = NULL; /* Set up a parser context so we can catch the details of XML errors. */ pctxt = xmlNewParserCtxt (); if (!pctxt || !pctxt->sax) goto cleanup; pctxt->sax->error = catchXMLError; pctxt->_private = conn; if (conn) virResetError (&conn->err); xml = xmlCtxtReadDoc (pctxt, BAD_CAST xmlStr, "domain.xml", NULL, XML_PARSE_NOENT | XML_PARSE_NONET | XML_PARSE_NOWARNING); if (!xml) { if (conn && conn->err.code == VIR_ERR_NONE) virDomainReportError(conn, VIR_ERR_XML_ERROR, _("failed to parse xml document")); goto cleanup; } if ((root = xmlDocGetRootElement(xml)) == NULL) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("missing root element")); goto cleanup; } def = virDomainDefParseNode(conn, caps, xml, root); cleanup: xmlFreeParserCtxt (pctxt); xmlFreeDoc (xml); return def; } virDomainDefPtr virDomainDefParseFile(virConnectPtr conn, virCapsPtr caps, const char *filename) { xmlParserCtxtPtr pctxt; xmlDocPtr xml = NULL; xmlNodePtr root; virDomainDefPtr def = NULL; /* Set up a parser context so we can catch the details of XML errors. */ pctxt = xmlNewParserCtxt (); if (!pctxt || !pctxt->sax) goto cleanup; pctxt->sax->error = catchXMLError; pctxt->_private = conn; if (conn) virResetError (&conn->err); xml = xmlCtxtReadFile (pctxt, filename, NULL, XML_PARSE_NOENT | XML_PARSE_NONET | XML_PARSE_NOWARNING); if (!xml) { if (conn && conn->err.code == VIR_ERR_NONE) virDomainReportError(conn, VIR_ERR_XML_ERROR, _("failed to parse xml document")); goto cleanup; } if ((root = xmlDocGetRootElement(xml)) == NULL) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("missing root element")); goto cleanup; } def = virDomainDefParseNode(conn, caps, xml, root); cleanup: xmlFreeParserCtxt (pctxt); xmlFreeDoc (xml); return def; } virDomainDefPtr virDomainDefParseNode(virConnectPtr conn, virCapsPtr caps, xmlDocPtr xml, xmlNodePtr root) { xmlXPathContextPtr ctxt = NULL; virDomainDefPtr def = NULL; if (!xmlStrEqual(root->name, BAD_CAST "domain")) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("incorrect root element")); goto cleanup; } ctxt = xmlXPathNewContext(xml); if (ctxt == NULL) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); goto cleanup; } ctxt->node = root; def = virDomainDefParseXML(conn, caps, ctxt); cleanup: xmlXPathFreeContext(ctxt); return def; } #endif /* ! PROXY */ /************************************************************************ * * * Parser and converter for the CPUset strings used in libvirt * * * ************************************************************************/ /** * virDomainCpuNumberParse * @str: pointer to the char pointer used * @maxcpu: maximum CPU number allowed * * Parse a CPU number * * Returns the CPU number or -1 in case of error. @str will be * updated to skip the number. */ static int virDomainCpuNumberParse(const char **str, int maxcpu) { int ret = 0; const char *cur = *str; if (!c_isdigit(*cur)) return (-1); while (c_isdigit(*cur)) { ret = ret * 10 + (*cur - '0'); if (ret >= maxcpu) return (-1); cur++; } *str = cur; return (ret); } /** * virDomainCpuSetFormat: * @conn: connection * @cpuset: pointer to a char array for the CPU set * @maxcpu: number of elements available in @cpuset * * Serialize the cpuset to a string * * Returns the new string NULL in case of error. The string need to be * freed by the caller. */ char * virDomainCpuSetFormat(virConnectPtr conn, char *cpuset, int maxcpu) { virBuffer buf = VIR_BUFFER_INITIALIZER; int start, cur; int first = 1; if ((cpuset == NULL) || (maxcpu <= 0) || (maxcpu > 100000)) return (NULL); cur = 0; start = -1; while (cur < maxcpu) { if (cpuset[cur]) { if (start == -1) start = cur; } else if (start != -1) { if (!first) virBufferAddLit(&buf, ","); else first = 0; if (cur == start + 1) virBufferVSprintf(&buf, "%d", start); else virBufferVSprintf(&buf, "%d-%d", start, cur - 1); start = -1; } cur++; } if (start != -1) { if (!first) virBufferAddLit(&buf, ","); if (maxcpu == start + 1) virBufferVSprintf(&buf, "%d", start); else virBufferVSprintf(&buf, "%d-%d", start, maxcpu - 1); } if (virBufferError(&buf)) { virDomainReportError(conn, VIR_ERR_NO_MEMORY, NULL); return NULL; } return virBufferContentAndReset(&buf); } /** * virDomainCpuSetParse: * @conn: connection * @str: pointer to a CPU set string pointer * @sep: potential character used to mark the end of string if not 0 * @cpuset: pointer to a char array for the CPU set * @maxcpu: number of elements available in @cpuset * * Parse the cpu set, it will set the value for enabled CPUs in the @cpuset * to 1, and 0 otherwise. The syntax allows coma separated entries each * can be either a CPU number, ^N to unset that CPU or N-M for ranges. * * Returns the number of CPU found in that set, or -1 in case of error. * @cpuset is modified accordingly to the value parsed. * @str is updated to the end of the part parsed */ int virDomainCpuSetParse(virConnectPtr conn, const char **str, char sep, char *cpuset, int maxcpu) { const char *cur; int ret = 0; int i, start, last; int neg = 0; if ((str == NULL) || (cpuset == NULL) || (maxcpu <= 0) || (maxcpu > 100000)) return (-1); cur = *str; virSkipSpaces(&cur); if (*cur == 0) goto parse_error; /* initialize cpumap to all 0s */ for (i = 0; i < maxcpu; i++) cpuset[i] = 0; ret = 0; while ((*cur != 0) && (*cur != sep)) { /* * 3 constructs are allowed: * - N : a single CPU number * - N-M : a range of CPU numbers with N < M * - ^N : remove a single CPU number from the current set */ if (*cur == '^') { cur++; neg = 1; } if (!c_isdigit(*cur)) goto parse_error; start = virDomainCpuNumberParse(&cur, maxcpu); if (start < 0) goto parse_error; virSkipSpaces(&cur); if ((*cur == ',') || (*cur == 0) || (*cur == sep)) { if (neg) { if (cpuset[start] == 1) { cpuset[start] = 0; ret--; } } else { if (cpuset[start] == 0) { cpuset[start] = 1; ret++; } } } else if (*cur == '-') { if (neg) goto parse_error; cur++; virSkipSpaces(&cur); last = virDomainCpuNumberParse(&cur, maxcpu); if (last < start) goto parse_error; for (i = start; i <= last; i++) { if (cpuset[i] == 0) { cpuset[i] = 1; ret++; } } virSkipSpaces(&cur); } if (*cur == ',') { cur++; virSkipSpaces(&cur); neg = 0; } else if ((*cur == 0) || (*cur == sep)) { break; } else goto parse_error; } *str = cur; return (ret); parse_error: virDomainReportError(conn, VIR_ERR_XEN_CALL, "%s", _("topology cpuset syntax error")); return (-1); } static int virDomainLifecycleDefFormat(virConnectPtr conn, virBufferPtr buf, int type, const char *name) { const char *typeStr = virDomainLifecycleTypeToString(type); if (!typeStr) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unexpected lifecycle type %d"), type); return -1; } virBufferVSprintf(buf, " <%s>%s\n", name, typeStr, name); return 0; } static int virDomainDiskDefFormat(virConnectPtr conn, virBufferPtr buf, virDomainDiskDefPtr def) { const char *type = virDomainDiskTypeToString(def->type); const char *device = virDomainDiskDeviceTypeToString(def->device); const char *bus = virDomainDiskBusTypeToString(def->bus); if (!type) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unexpected disk type %d"), def->type); return -1; } if (!device) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unexpected disk device %d"), def->device); return -1; } if (!bus) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unexpected disk bus %d"), def->bus); return -1; } virBufferVSprintf(buf, " \n", type, device); if (def->driverName) { if (def->driverType) virBufferVSprintf(buf, " \n", def->driverName, def->driverType); else virBufferVSprintf(buf, " \n", def->driverName); } if (def->src) { if (def->type == VIR_DOMAIN_DISK_TYPE_FILE) virBufferEscapeString(buf, " \n", def->src); else virBufferEscapeString(buf, " \n", def->src); } virBufferVSprintf(buf, " \n", def->dst, bus); if (def->readonly) virBufferAddLit(buf, " \n"); if (def->shared) virBufferAddLit(buf, " \n"); virBufferAddLit(buf, " \n"); return 0; } static int virDomainFSDefFormat(virConnectPtr conn, virBufferPtr buf, virDomainFSDefPtr def) { const char *type = virDomainFSTypeToString(def->type); if (!type) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unexpected filesystem type %d"), def->type); return -1; } virBufferVSprintf(buf, " \n", type); if (def->src) { switch (def->type) { case VIR_DOMAIN_FS_TYPE_MOUNT: virBufferEscapeString(buf, " \n", def->src); break; case VIR_DOMAIN_FS_TYPE_BLOCK: virBufferEscapeString(buf, " \n", def->src); break; case VIR_DOMAIN_FS_TYPE_FILE: virBufferEscapeString(buf, " \n", def->src); break; case VIR_DOMAIN_FS_TYPE_TEMPLATE: virBufferEscapeString(buf, " \n", def->src); } } virBufferVSprintf(buf, " \n", def->dst); if (def->readonly) virBufferAddLit(buf, " \n"); virBufferAddLit(buf, " \n"); return 0; } static int virDomainNetDefFormat(virConnectPtr conn, virBufferPtr buf, virDomainNetDefPtr def) { const char *type = virDomainNetTypeToString(def->type); if (!type) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("unexpected net type %d"), def->type); return -1; } virBufferVSprintf(buf, " \n", type); virBufferVSprintf(buf, " \n", def->mac[0], def->mac[1], def->mac[2], def->mac[3], def->mac[4], def->mac[5]); switch (def->type) { case VIR_DOMAIN_NET_TYPE_NETWORK: virBufferEscapeString(buf, " \n", def->data.network.name); break; case VIR_DOMAIN_NET_TYPE_ETHERNET: if (def->data.ethernet.dev) virBufferEscapeString(buf, " \n", def->data.ethernet.dev); if (def->data.ethernet.ipaddr) virBufferVSprintf(buf, " \n", def->data.ethernet.ipaddr); if (def->data.ethernet.script) virBufferEscapeString(buf, "