/* * node_device_conf.c: config handling for node devices * * Copyright (C) 2009-2013 Red Hat, Inc. * Copyright (C) 2008 Virtual Iron Software, Inc. * Copyright (C) 2008 David F. Lively * * 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, see * . * * Author: David F. Lively */ #include #include #include #include "virerror.h" #include "datatypes.h" #include "viralloc.h" #include "virstring.h" #include "node_device_conf.h" #include "device_conf.h" #include "virxml.h" #include "virbuffer.h" #include "viruuid.h" #include "virrandom.h" #define VIR_FROM_THIS VIR_FROM_NODEDEV VIR_ENUM_IMPL(virNodeDevCap, VIR_NODE_DEV_CAP_LAST, "system", "pci", "usb_device", "usb", "net", "scsi_host", "scsi_target", "scsi", "storage", "fc_host", "vports", "scsi_generic") VIR_ENUM_IMPL(virNodeDevNetCap, VIR_NODE_DEV_CAP_NET_LAST, "80203", "80211") static int virNodeDevCapsDefParseString(const char *xpath, xmlXPathContextPtr ctxt, char **string) { char *s; if (!(s = virXPathString(xpath, ctxt))) return -1; *string = s; return 0; } int virNodeDeviceHasCap(const virNodeDeviceObjPtr dev, const char *cap) { virNodeDevCapsDefPtr caps = dev->def->caps; while (caps) { if (STREQ(cap, virNodeDevCapTypeToString(caps->type))) return 1; caps = caps->next; } return 0; } virNodeDeviceObjPtr virNodeDeviceFindBySysfsPath(const virNodeDeviceObjListPtr devs, const char *sysfs_path) { size_t i; for (i = 0; i < devs->count; i++) { virNodeDeviceObjLock(devs->objs[i]); if ((devs->objs[i]->def->sysfs_path != NULL) && (STREQ(devs->objs[i]->def->sysfs_path, sysfs_path))) { return devs->objs[i]; } virNodeDeviceObjUnlock(devs->objs[i]); } return NULL; } virNodeDeviceObjPtr virNodeDeviceFindByName(const virNodeDeviceObjListPtr devs, const char *name) { size_t i; for (i = 0; i < devs->count; i++) { virNodeDeviceObjLock(devs->objs[i]); if (STREQ(devs->objs[i]->def->name, name)) return devs->objs[i]; virNodeDeviceObjUnlock(devs->objs[i]); } return NULL; } void virNodeDeviceDefFree(virNodeDeviceDefPtr def) { virNodeDevCapsDefPtr caps; if (!def) return; VIR_FREE(def->name); VIR_FREE(def->parent); VIR_FREE(def->driver); VIR_FREE(def->sysfs_path); VIR_FREE(def->parent_sysfs_path); caps = def->caps; while (caps) { virNodeDevCapsDefPtr next = caps->next; virNodeDevCapsDefFree(caps); caps = next; } VIR_FREE(def); } void virNodeDeviceObjFree(virNodeDeviceObjPtr dev) { if (!dev) return; virNodeDeviceDefFree(dev->def); if (dev->privateFree) (*dev->privateFree)(dev->privateData); virMutexDestroy(&dev->lock); VIR_FREE(dev); } void virNodeDeviceObjListFree(virNodeDeviceObjListPtr devs) { size_t i; for (i = 0; i < devs->count; i++) virNodeDeviceObjFree(devs->objs[i]); VIR_FREE(devs->objs); devs->count = 0; } virNodeDeviceObjPtr virNodeDeviceAssignDef(virNodeDeviceObjListPtr devs, const virNodeDeviceDefPtr def) { virNodeDeviceObjPtr device; if ((device = virNodeDeviceFindByName(devs, def->name))) { virNodeDeviceDefFree(device->def); device->def = def; return device; } if (VIR_ALLOC(device) < 0) return NULL; if (virMutexInit(&device->lock) < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("cannot initialize mutex")); VIR_FREE(device); return NULL; } virNodeDeviceObjLock(device); device->def = def; if (VIR_REALLOC_N(devs->objs, devs->count+1) < 0) { device->def = NULL; virNodeDeviceObjUnlock(device); virNodeDeviceObjFree(device); return NULL; } devs->objs[devs->count++] = device; return device; } void virNodeDeviceObjRemove(virNodeDeviceObjListPtr devs, const virNodeDeviceObjPtr dev) { size_t i; virNodeDeviceObjUnlock(dev); for (i = 0; i < devs->count; i++) { virNodeDeviceObjLock(dev); if (devs->objs[i] == dev) { virNodeDeviceObjUnlock(dev); virNodeDeviceObjFree(devs->objs[i]); if (i < (devs->count - 1)) memmove(devs->objs + i, devs->objs + i + 1, sizeof(*(devs->objs)) * (devs->count - (i + 1))); if (VIR_REALLOC_N(devs->objs, devs->count - 1) < 0) { ; /* Failure to reduce memory allocation isn't fatal */ } devs->count--; break; } virNodeDeviceObjUnlock(dev); } } char *virNodeDeviceDefFormat(const virNodeDeviceDefPtr def) { virBuffer buf = VIR_BUFFER_INITIALIZER; virNodeDevCapsDefPtr caps; size_t i = 0; virBufferAddLit(&buf, "\n"); virBufferEscapeString(&buf, " %s\n", def->name); virBufferEscapeString(&buf, " %s\n", def->sysfs_path); if (def->parent) { virBufferEscapeString(&buf, " %s\n", def->parent); } if (def->driver) { virBufferAddLit(&buf, " \n"); virBufferEscapeString(&buf, " %s\n", def->driver); virBufferAddLit(&buf, " \n"); } for (caps = def->caps; caps; caps = caps->next) { char uuidstr[VIR_UUID_STRING_BUFLEN]; union _virNodeDevCapData *data = &caps->data; virBufferAsprintf(&buf, " \n", virNodeDevCapTypeToString(caps->type)); switch (caps->type) { case VIR_NODE_DEV_CAP_SYSTEM: if (data->system.product_name) virBufferEscapeString(&buf, " %s\n", data->system.product_name); virBufferAddLit(&buf, " \n"); if (data->system.hardware.vendor_name) virBufferEscapeString(&buf, " %s\n", data->system.hardware.vendor_name); if (data->system.hardware.version) virBufferEscapeString(&buf, " %s\n", data->system.hardware.version); if (data->system.hardware.serial) virBufferEscapeString(&buf, " %s\n", data->system.hardware.serial); virUUIDFormat(data->system.hardware.uuid, uuidstr); virBufferAsprintf(&buf, " %s\n", uuidstr); virBufferAddLit(&buf, " \n"); virBufferAddLit(&buf, " \n"); if (data->system.firmware.vendor_name) virBufferEscapeString(&buf, " %s\n", data->system.firmware.vendor_name); if (data->system.firmware.version) virBufferEscapeString(&buf, " %s\n", data->system.firmware.version); if (data->system.firmware.release_date) virBufferEscapeString(&buf, " %s\n", data->system.firmware.release_date); virBufferAddLit(&buf, " \n"); break; case VIR_NODE_DEV_CAP_PCI_DEV: virBufferAsprintf(&buf, " %d\n", data->pci_dev.domain); virBufferAsprintf(&buf, " %d\n", data->pci_dev.bus); virBufferAsprintf(&buf, " %d\n", data->pci_dev.slot); virBufferAsprintf(&buf, " %d\n", data->pci_dev.function); virBufferAsprintf(&buf, " pci_dev.product); if (data->pci_dev.product_name) virBufferEscapeString(&buf, ">%s\n", data->pci_dev.product_name); else virBufferAddLit(&buf, " />\n"); virBufferAsprintf(&buf, " pci_dev.vendor); if (data->pci_dev.vendor_name) virBufferEscapeString(&buf, ">%s\n", data->pci_dev.vendor_name); else virBufferAddLit(&buf, " />\n"); if (data->pci_dev.flags & VIR_NODE_DEV_CAP_FLAG_PCI_PHYSICAL_FUNCTION) { virBufferAddLit(&buf, " \n"); virBufferAsprintf(&buf, "
\n", data->pci_dev.physical_function->domain, data->pci_dev.physical_function->bus, data->pci_dev.physical_function->slot, data->pci_dev.physical_function->function); virBufferAddLit(&buf, " \n"); } if (data->pci_dev.flags & VIR_NODE_DEV_CAP_FLAG_PCI_VIRTUAL_FUNCTION) { virBufferAddLit(&buf, " \n"); for (i = 0; i < data->pci_dev.num_virtual_functions; i++) { virBufferAsprintf(&buf, "
\n", data->pci_dev.virtual_functions[i]->domain, data->pci_dev.virtual_functions[i]->bus, data->pci_dev.virtual_functions[i]->slot, data->pci_dev.virtual_functions[i]->function); } virBufferAddLit(&buf, " \n"); } if (data->pci_dev.nIommuGroupDevices) { virBufferAsprintf(&buf, " \n", data->pci_dev.iommuGroupNumber); for (i = 0; i < data->pci_dev.nIommuGroupDevices; i++) { virBufferAsprintf(&buf, "
\n", data->pci_dev.iommuGroupDevices[i]->domain, data->pci_dev.iommuGroupDevices[i]->bus, data->pci_dev.iommuGroupDevices[i]->slot, data->pci_dev.iommuGroupDevices[i]->function); } virBufferAddLit(&buf, " \n"); } break; case VIR_NODE_DEV_CAP_USB_DEV: virBufferAsprintf(&buf, " %d\n", data->usb_dev.bus); virBufferAsprintf(&buf, " %d\n", data->usb_dev.device); virBufferAsprintf(&buf, " usb_dev.product); if (data->usb_dev.product_name) virBufferEscapeString(&buf, ">%s\n", data->usb_dev.product_name); else virBufferAddLit(&buf, " />\n"); virBufferAsprintf(&buf, " usb_dev.vendor); if (data->usb_dev.vendor_name) virBufferEscapeString(&buf, ">%s\n", data->usb_dev.vendor_name); else virBufferAddLit(&buf, " />\n"); break; case VIR_NODE_DEV_CAP_USB_INTERFACE: virBufferAsprintf(&buf, " %d\n", data->usb_if.number); virBufferAsprintf(&buf, " %d\n", data->usb_if._class); virBufferAsprintf(&buf, " %d\n", data->usb_if.subclass); virBufferAsprintf(&buf, " %d\n", data->usb_if.protocol); if (data->usb_if.description) virBufferEscapeString(&buf, " %s\n", data->usb_if.description); break; case VIR_NODE_DEV_CAP_NET: virBufferEscapeString(&buf, " %s\n", data->net.ifname); if (data->net.address) virBufferEscapeString(&buf, "
%s
\n", data->net.address); if (data->net.subtype != VIR_NODE_DEV_CAP_NET_LAST) { const char *subtyp = virNodeDevNetCapTypeToString(data->net.subtype); virBufferEscapeString(&buf, " \n", subtyp); } break; case VIR_NODE_DEV_CAP_SCSI_HOST: virBufferAsprintf(&buf, " %d\n", data->scsi_host.host); if (data->scsi_host.flags & VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST) { virBufferAddLit(&buf, " \n"); virBufferEscapeString(&buf, " %s\n", data->scsi_host.wwnn); virBufferEscapeString(&buf, " %s\n", data->scsi_host.wwpn); virBufferEscapeString(&buf, " %s\n", data->scsi_host.fabric_wwn); virBufferAddLit(&buf, " \n"); } if (data->scsi_host.flags & VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS) { virBufferAddLit(&buf, " \n"); virBufferAsprintf(&buf, " %d\n", data->scsi_host.max_vports); virBufferAsprintf(&buf, " %d\n", data->scsi_host.vports); virBufferAddLit(&buf, " \n"); } break; case VIR_NODE_DEV_CAP_SCSI_TARGET: virBufferEscapeString(&buf, " %s\n", data->scsi_target.name); break; case VIR_NODE_DEV_CAP_SCSI: virBufferAsprintf(&buf, " %d\n", data->scsi.host); virBufferAsprintf(&buf, " %d\n", data->scsi.bus); virBufferAsprintf(&buf, " %d\n", data->scsi.target); virBufferAsprintf(&buf, " %d\n", data->scsi.lun); if (data->scsi.type) virBufferEscapeString(&buf, " %s\n", data->scsi.type); break; case VIR_NODE_DEV_CAP_STORAGE: virBufferEscapeString(&buf, " %s\n", data->storage.block); if (data->storage.bus) virBufferEscapeString(&buf, " %s\n", data->storage.bus); if (data->storage.drive_type) virBufferEscapeString(&buf, " %s\n", data->storage.drive_type); if (data->storage.model) virBufferEscapeString(&buf, " %s\n", data->storage.model); if (data->storage.vendor) virBufferEscapeString(&buf, " %s\n", data->storage.vendor); if (data->storage.serial) virBufferAsprintf(&buf, " %s\n", data->storage.serial); if (data->storage.flags & VIR_NODE_DEV_CAP_STORAGE_REMOVABLE) { int avl = data->storage.flags & VIR_NODE_DEV_CAP_STORAGE_REMOVABLE_MEDIA_AVAILABLE; virBufferAddLit(&buf, " \n"); virBufferAsprintf(&buf, " %d" "\n", avl ? 1 : 0); virBufferAsprintf(&buf, " %llu\n", data->storage.removable_media_size); if (data->storage.media_label) virBufferEscapeString(&buf, " %s\n", data->storage.media_label); if (data->storage.logical_block_size > 0) virBufferAsprintf(&buf, " %llu" "\n", data->storage.logical_block_size); if (data->storage.num_blocks > 0) virBufferAsprintf(&buf, " %llu\n", data->storage.num_blocks); virBufferAddLit(&buf, " \n"); } else { virBufferAsprintf(&buf, " %llu\n", data->storage.size); if (data->storage.logical_block_size > 0) virBufferAsprintf(&buf, " %llu" "\n", data->storage.logical_block_size); if (data->storage.num_blocks > 0) virBufferAsprintf(&buf, " %llu\n", data->storage.num_blocks); } if (data->storage.flags & VIR_NODE_DEV_CAP_STORAGE_HOTPLUGGABLE) virBufferAddLit(&buf, " \n"); break; case VIR_NODE_DEV_CAP_SCSI_GENERIC: virBufferEscapeString(&buf, " %s\n", data->sg.path); break; case VIR_NODE_DEV_CAP_FC_HOST: case VIR_NODE_DEV_CAP_VPORTS: case VIR_NODE_DEV_CAP_LAST: default: break; } virBufferAddLit(&buf, " \n"); } virBufferAddLit(&buf, "\n"); if (virBufferError(&buf)) goto no_memory; return virBufferContentAndReset(&buf); no_memory: virReportOOMError(); virBufferFreeAndReset(&buf); return NULL; } static int virNodeDevCapsDefParseULong(const char *xpath, xmlXPathContextPtr ctxt, unsigned *value, virNodeDeviceDefPtr def, const char *missing_error_fmt, const char *invalid_error_fmt) { int ret; unsigned long val; ret = virXPathULong(xpath, ctxt, &val); if (ret < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, ret == -1 ? missing_error_fmt : invalid_error_fmt, def->name); return -1; } *value = val; return 0; } static int virNodeDevCapsDefParseULongLong(const char *xpath, xmlXPathContextPtr ctxt, unsigned long long *value, virNodeDeviceDefPtr def, const char *missing_error_fmt, const char *invalid_error_fmt) { int ret; unsigned long long val; ret = virXPathULongLong(xpath, ctxt, &val); if (ret < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, ret == -1 ? missing_error_fmt : invalid_error_fmt, def->name); return -1; } *value = val; return 0; } static int virNodeDevCapStorageParseXML(xmlXPathContextPtr ctxt, virNodeDeviceDefPtr def, xmlNodePtr node, union _virNodeDevCapData *data) { xmlNodePtr orignode, *nodes = NULL; size_t i; int n, ret = -1; unsigned long long val; orignode = ctxt->node; ctxt->node = node; data->storage.block = virXPathString("string(./block[1])", ctxt); if (!data->storage.block) { virReportError(VIR_ERR_INTERNAL_ERROR, _("no block device path supplied for '%s'"), def->name); goto out; } data->storage.bus = virXPathString("string(./bus[1])", ctxt); data->storage.drive_type = virXPathString("string(./drive_type[1])", ctxt); data->storage.model = virXPathString("string(./model[1])", ctxt); data->storage.vendor = virXPathString("string(./vendor[1])", ctxt); data->storage.serial = virXPathString("string(./serial[1])", ctxt); if ((n = virXPathNodeSet("./capability", ctxt, &nodes)) < 0) { goto out; } for (i = 0; i < n; i++) { char *type = virXMLPropString(nodes[i], "type"); if (!type) { virReportError(VIR_ERR_INTERNAL_ERROR, _("missing storage capability type for '%s'"), def->name); goto out; } if (STREQ(type, "hotpluggable")) data->storage.flags |= VIR_NODE_DEV_CAP_STORAGE_HOTPLUGGABLE; else if (STREQ(type, "removable")) { xmlNodePtr orignode2; data->storage.flags |= VIR_NODE_DEV_CAP_STORAGE_REMOVABLE; orignode2 = ctxt->node; ctxt->node = nodes[i]; if (virXPathBoolean("count(./media_available[. = '1']) > 0", ctxt)) data->storage.flags |= VIR_NODE_DEV_CAP_STORAGE_REMOVABLE_MEDIA_AVAILABLE; data->storage.media_label = virXPathString("string(./media_label[1])", ctxt); val = 0; if (virNodeDevCapsDefParseULongLong("number(./media_size[1])", ctxt, &val, def, _("no removable media size supplied for '%s'"), _("invalid removable media size supplied for '%s'")) < 0) { ctxt->node = orignode2; VIR_FREE(type); goto out; } data->storage.removable_media_size = val; ctxt->node = orignode2; } else { virReportError(VIR_ERR_INTERNAL_ERROR, _("unknown storage capability type '%s' for '%s'"), type, def->name); VIR_FREE(type); goto out; } VIR_FREE(type); } if (!(data->storage.flags & VIR_NODE_DEV_CAP_STORAGE_REMOVABLE)) { val = 0; if (virNodeDevCapsDefParseULongLong("number(./size[1])", ctxt, &val, def, _("no size supplied for '%s'"), _("invalid size supplied for '%s'")) < 0) goto out; data->storage.size = val; } ret = 0; out: VIR_FREE(nodes); ctxt->node = orignode; return ret; } static int virNodeDevCapScsiParseXML(xmlXPathContextPtr ctxt, virNodeDeviceDefPtr def, xmlNodePtr node, union _virNodeDevCapData *data) { xmlNodePtr orignode; int ret = -1; orignode = ctxt->node; ctxt->node = node; if (virNodeDevCapsDefParseULong("number(./host[1])", ctxt, &data->scsi.host, def, _("no SCSI host ID supplied for '%s'"), _("invalid SCSI host ID supplied for '%s'")) < 0) goto out; if (virNodeDevCapsDefParseULong("number(./bus[1])", ctxt, &data->scsi.bus, def, _("no SCSI bus ID supplied for '%s'"), _("invalid SCSI bus ID supplied for '%s'")) < 0) goto out; if (virNodeDevCapsDefParseULong("number(./target[1])", ctxt, &data->scsi.target, def, _("no SCSI target ID supplied for '%s'"), _("invalid SCSI target ID supplied for '%s'")) < 0) goto out; if (virNodeDevCapsDefParseULong("number(./lun[1])", ctxt, &data->scsi.lun, def, _("no SCSI LUN ID supplied for '%s'"), _("invalid SCSI LUN ID supplied for '%s'")) < 0) goto out; data->scsi.type = virXPathString("string(./type[1])", ctxt); ret = 0; out: ctxt->node = orignode; return ret; } static int virNodeDevCapScsiTargetParseXML(xmlXPathContextPtr ctxt, virNodeDeviceDefPtr def, xmlNodePtr node, union _virNodeDevCapData *data) { xmlNodePtr orignode; int ret = -1; orignode = ctxt->node; ctxt->node = node; data->scsi_target.name = virXPathString("string(./name[1])", ctxt); if (!data->scsi_target.name) { virReportError(VIR_ERR_INTERNAL_ERROR, _("no target name supplied for '%s'"), def->name); goto out; } ret = 0; out: ctxt->node = orignode; return ret; } static int virNodeDevCapScsiHostParseXML(xmlXPathContextPtr ctxt, virNodeDeviceDefPtr def, xmlNodePtr node, union _virNodeDevCapData *data, int create, const char *virt_type) { xmlNodePtr orignode, *nodes = NULL; int ret = -1, n = 0; size_t i; char *type = NULL; orignode = ctxt->node; ctxt->node = node; if (create == EXISTING_DEVICE && virNodeDevCapsDefParseULong("number(./host[1])", ctxt, &data->scsi_host.host, def, _("no SCSI host ID supplied for '%s'"), _("invalid SCSI host ID supplied for '%s'")) < 0) { goto out; } if ((n = virXPathNodeSet("./capability", ctxt, &nodes)) < 0) { goto out; } for (i = 0; i < n; i++) { type = virXMLPropString(nodes[i], "type"); if (!type) { virReportError(VIR_ERR_INTERNAL_ERROR, _("missing SCSI host capability type for '%s'"), def->name); goto out; } if (STREQ(type, "vport_ops")) { data->scsi_host.flags |= VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS; } else if (STREQ(type, "fc_host")) { xmlNodePtr orignode2; data->scsi_host.flags |= VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST; orignode2 = ctxt->node; ctxt->node = nodes[i]; if (virNodeDevCapsDefParseString("string(./wwnn[1])", ctxt, &data->scsi_host.wwnn) < 0) { if (virRandomGenerateWWN(&data->scsi_host.wwnn, virt_type) < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, _("no WWNN supplied for '%s', and " "auto-generation failed"), def->name); goto out; } } if (virNodeDevCapsDefParseString("string(./wwpn[1])", ctxt, &data->scsi_host.wwpn) < 0) { if (virRandomGenerateWWN(&data->scsi_host.wwpn, virt_type) < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, _("no WWPN supplied for '%s', and " "auto-generation failed"), def->name); goto out; } } ctxt->node = orignode2; } else { virReportError(VIR_ERR_INTERNAL_ERROR, _("unknown SCSI host capability type '%s' for '%s'"), type, def->name); goto out; } VIR_FREE(type); } ret = 0; out: VIR_FREE(type); ctxt->node = orignode; VIR_FREE(nodes); return ret; } static int virNodeDevCapNetParseXML(xmlXPathContextPtr ctxt, virNodeDeviceDefPtr def, xmlNodePtr node, union _virNodeDevCapData *data) { xmlNodePtr orignode; int ret = -1; char *tmp; orignode = ctxt->node; ctxt->node = node; data->net.ifname = virXPathString("string(./interface[1])", ctxt); if (!data->net.ifname) { virReportError(VIR_ERR_INTERNAL_ERROR, _("no network interface supplied for '%s'"), def->name); goto out; } data->net.address = virXPathString("string(./address[1])", ctxt); data->net.subtype = VIR_NODE_DEV_CAP_NET_LAST; tmp = virXPathString("string(./capability/@type)", ctxt); if (tmp) { int val = virNodeDevNetCapTypeFromString(tmp); VIR_FREE(tmp); if (val < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, _("invalid network type supplied for '%s'"), def->name); goto out; } data->net.subtype = val; } ret = 0; out: ctxt->node = orignode; return ret; } static int virNodeDevCapUsbInterfaceParseXML(xmlXPathContextPtr ctxt, virNodeDeviceDefPtr def, xmlNodePtr node, union _virNodeDevCapData *data) { xmlNodePtr orignode; int ret = -1; orignode = ctxt->node; ctxt->node = node; if (virNodeDevCapsDefParseULong("number(./number[1])", ctxt, &data->usb_if.number, def, _("no USB interface number supplied for '%s'"), _("invalid USB interface number supplied for '%s'")) < 0) goto out; if (virNodeDevCapsDefParseULong("number(./class[1])", ctxt, &data->usb_if._class, def, _("no USB interface class supplied for '%s'"), _("invalid USB interface class supplied for '%s'")) < 0) goto out; if (virNodeDevCapsDefParseULong("number(./subclass[1])", ctxt, &data->usb_if.subclass, def, _("no USB interface subclass supplied for '%s'"), _("invalid USB interface subclass supplied for '%s'")) < 0) goto out; if (virNodeDevCapsDefParseULong("number(./protocol[1])", ctxt, &data->usb_if.protocol, def, _("no USB interface protocol supplied for '%s'"), _("invalid USB interface protocol supplied for '%s'")) < 0) goto out; data->usb_if.description = virXPathString("string(./description[1])", ctxt); ret = 0; out: ctxt->node = orignode; return ret; } static int virNodeDevCapsDefParseHexId(const char *xpath, xmlXPathContextPtr ctxt, unsigned *value, virNodeDeviceDefPtr def, const char *missing_error_fmt, const char *invalid_error_fmt) { int ret; unsigned long val; ret = virXPathULongHex(xpath, ctxt, &val); if (ret < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, ret == -1 ? missing_error_fmt : invalid_error_fmt, def->name); return -1; } *value = val; return 0; } static int virNodeDevCapUsbDevParseXML(xmlXPathContextPtr ctxt, virNodeDeviceDefPtr def, xmlNodePtr node, union _virNodeDevCapData *data) { xmlNodePtr orignode; int ret = -1; orignode = ctxt->node; ctxt->node = node; if (virNodeDevCapsDefParseULong("number(./bus[1])", ctxt, &data->usb_dev.bus, def, _("no USB bus number supplied for '%s'"), _("invalid USB bus number supplied for '%s'")) < 0) goto out; if (virNodeDevCapsDefParseULong("number(./device[1])", ctxt, &data->usb_dev.device, def, _("no USB device number supplied for '%s'"), _("invalid USB device number supplied for '%s'")) < 0) goto out; if (virNodeDevCapsDefParseHexId("string(./vendor[1]/@id)", ctxt, &data->usb_dev.vendor, def, _("no USB vendor ID supplied for '%s'"), _("invalid USB vendor ID supplied for '%s'")) < 0) goto out; if (virNodeDevCapsDefParseHexId("string(./product[1]/@id)", ctxt, &data->usb_dev.product, def, _("no USB product ID supplied for '%s'"), _("invalid USB product ID supplied for '%s'")) < 0) goto out; data->usb_dev.vendor_name = virXPathString("string(./vendor[1])", ctxt); data->usb_dev.product_name = virXPathString("string(./product[1])", ctxt); ret = 0; out: ctxt->node = orignode; return ret; } static int virNodeDevCapPciDevIommuGroupParseXML(xmlXPathContextPtr ctxt, xmlNodePtr iommuGroupNode, union _virNodeDevCapData *data) { xmlNodePtr origNode = ctxt->node; xmlNodePtr *addrNodes = NULL; char *numberStr = NULL; int nAddrNodes, ret = -1; size_t i; virPCIDeviceAddressPtr pciAddr = NULL; ctxt->node = iommuGroupNode; numberStr = virXMLPropString(iommuGroupNode, "number"); if (!numberStr) { virReportError(VIR_ERR_XML_ERROR, "%s", _("missing iommuGroup number attribute")); goto cleanup; } if (virStrToLong_ui(numberStr, NULL, 10, &data->pci_dev.iommuGroupNumber) < 0) { virReportError(VIR_ERR_XML_ERROR, _("invalid iommuGroup number attribute '%s'"), numberStr); goto cleanup; } if ((nAddrNodes = virXPathNodeSet("./address", ctxt, &addrNodes)) < 0) goto cleanup; for (i = 0; i < nAddrNodes; i++) { virDevicePCIAddress addr = { 0, 0, 0, 0, 0 }; if (virDevicePCIAddressParseXML(addrNodes[i], &addr) < 0) goto cleanup; if (VIR_ALLOC(pciAddr) < 0) goto cleanup; pciAddr->domain = addr.domain; pciAddr->bus = addr.bus; pciAddr->slot = addr.slot; pciAddr->function = addr.function; if (VIR_APPEND_ELEMENT(data->pci_dev.iommuGroupDevices, data->pci_dev.nIommuGroupDevices, pciAddr) < 0) goto cleanup; } ret = 0; cleanup: ctxt->node = origNode; VIR_FREE(numberStr); VIR_FREE(addrNodes); VIR_FREE(pciAddr); return ret; } static int virNodeDevCapPciDevParseXML(xmlXPathContextPtr ctxt, virNodeDeviceDefPtr def, xmlNodePtr node, union _virNodeDevCapData *data) { xmlNodePtr orignode, iommuGroupNode; int ret = -1; orignode = ctxt->node; ctxt->node = node; if (virNodeDevCapsDefParseULong("number(./domain[1])", ctxt, &data->pci_dev.domain, def, _("no PCI domain ID supplied for '%s'"), _("invalid PCI domain ID supplied for '%s'")) < 0) goto out; if (virNodeDevCapsDefParseULong("number(./bus[1])", ctxt, &data->pci_dev.bus, def, _("no PCI bus ID supplied for '%s'"), _("invalid PCI bus ID supplied for '%s'")) < 0) goto out; if (virNodeDevCapsDefParseULong("number(./slot[1])", ctxt, &data->pci_dev.slot, def, _("no PCI slot ID supplied for '%s'"), _("invalid PCI slot ID supplied for '%s'")) < 0) goto out; if (virNodeDevCapsDefParseULong("number(./function[1])", ctxt, &data->pci_dev.function, def, _("no PCI function ID supplied for '%s'"), _("invalid PCI function ID supplied for '%s'")) < 0) goto out; if (virNodeDevCapsDefParseHexId("string(./vendor[1]/@id)", ctxt, &data->pci_dev.vendor, def, _("no PCI vendor ID supplied for '%s'"), _("invalid PCI vendor ID supplied for '%s'")) < 0) goto out; if (virNodeDevCapsDefParseHexId("string(./product[1]/@id)", ctxt, &data->pci_dev.product, def, _("no PCI product ID supplied for '%s'"), _("invalid PCI product ID supplied for '%s'")) < 0) goto out; data->pci_dev.vendor_name = virXPathString("string(./vendor[1])", ctxt); data->pci_dev.product_name = virXPathString("string(./product[1])", ctxt); if ((iommuGroupNode = virXPathNode("./iommuGroup[1]", ctxt))) { if (virNodeDevCapPciDevIommuGroupParseXML(ctxt, iommuGroupNode, data) < 0) { goto out; } } ret = 0; out: ctxt->node = orignode; return ret; } static int virNodeDevCapSystemParseXML(xmlXPathContextPtr ctxt, virNodeDeviceDefPtr def, xmlNodePtr node, union _virNodeDevCapData *data) { xmlNodePtr orignode; int ret = -1; char *tmp; orignode = ctxt->node; ctxt->node = node; data->system.product_name = virXPathString("string(./product[1])", ctxt); data->system.hardware.vendor_name = virXPathString("string(./hardware/vendor[1])", ctxt); data->system.hardware.version = virXPathString("string(./hardware/version[1])", ctxt); data->system.hardware.serial = virXPathString("string(./hardware/serial[1])", ctxt); tmp = virXPathString("string(./hardware/uuid[1])", ctxt); if (!tmp) { virReportError(VIR_ERR_INTERNAL_ERROR, _("no system UUID supplied for '%s'"), def->name); goto out; } if (virUUIDParse(tmp, data->system.hardware.uuid) < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, _("malformed uuid element for '%s'"), def->name); VIR_FREE(tmp); goto out; } VIR_FREE(tmp); data->system.firmware.vendor_name = virXPathString("string(./firmware/vendor[1])", ctxt); data->system.firmware.version = virXPathString("string(./firmware/version[1])", ctxt); data->system.firmware.release_date = virXPathString("string(./firmware/release_date[1])", ctxt); ret = 0; out: ctxt->node = orignode; return ret; } static virNodeDevCapsDefPtr virNodeDevCapsDefParseXML(xmlXPathContextPtr ctxt, virNodeDeviceDefPtr def, xmlNodePtr node, int create, const char *virt_type) { virNodeDevCapsDefPtr caps; char *tmp; int val, ret; if (VIR_ALLOC(caps) < 0) return NULL; tmp = virXMLPropString(node, "type"); if (!tmp) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("missing capability type")); goto error; } if ((val = virNodeDevCapTypeFromString(tmp)) < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, _("unknown capability type '%s'"), tmp); VIR_FREE(tmp); goto error; } caps->type = val; VIR_FREE(tmp); switch (caps->type) { case VIR_NODE_DEV_CAP_SYSTEM: ret = virNodeDevCapSystemParseXML(ctxt, def, node, &caps->data); break; case VIR_NODE_DEV_CAP_PCI_DEV: ret = virNodeDevCapPciDevParseXML(ctxt, def, node, &caps->data); break; case VIR_NODE_DEV_CAP_USB_DEV: ret = virNodeDevCapUsbDevParseXML(ctxt, def, node, &caps->data); break; case VIR_NODE_DEV_CAP_USB_INTERFACE: ret = virNodeDevCapUsbInterfaceParseXML(ctxt, def, node, &caps->data); break; case VIR_NODE_DEV_CAP_NET: ret = virNodeDevCapNetParseXML(ctxt, def, node, &caps->data); break; case VIR_NODE_DEV_CAP_SCSI_HOST: ret = virNodeDevCapScsiHostParseXML(ctxt, def, node, &caps->data, create, virt_type); break; case VIR_NODE_DEV_CAP_SCSI_TARGET: ret = virNodeDevCapScsiTargetParseXML(ctxt, def, node, &caps->data); break; case VIR_NODE_DEV_CAP_SCSI: ret = virNodeDevCapScsiParseXML(ctxt, def, node, &caps->data); break; case VIR_NODE_DEV_CAP_STORAGE: ret = virNodeDevCapStorageParseXML(ctxt, def, node, &caps->data); break; default: virReportError(VIR_ERR_INTERNAL_ERROR, _("unknown capability type '%d' for '%s'"), caps->type, def->name); ret = -1; break; } if (ret < 0) goto error; return caps; error: virNodeDevCapsDefFree(caps); return NULL; } static virNodeDeviceDefPtr virNodeDeviceDefParseXML(xmlXPathContextPtr ctxt, int create, const char *virt_type) { virNodeDeviceDefPtr def; virNodeDevCapsDefPtr *next_cap; xmlNodePtr *nodes; int n; size_t i; if (VIR_ALLOC(def) < 0) return NULL; /* Extract device name */ if (create == EXISTING_DEVICE) { def->name = virXPathString("string(./name[1])", ctxt); if (!def->name) { virReportError(VIR_ERR_NO_NAME, NULL); goto error; } } else { if (VIR_STRDUP(def->name, "new device") < 0) goto error; } /* Extract device parent, if any */ def->parent = virXPathString("string(./parent[1])", ctxt); /* Parse device capabilities */ nodes = NULL; if ((n = virXPathNodeSet("./capability", ctxt, &nodes)) < 0) { goto error; } if (n == 0) { virReportError(VIR_ERR_INTERNAL_ERROR, _("no device capabilities for '%s'"), def->name); goto error; } next_cap = &def->caps; for (i = 0; i < n; i++) { *next_cap = virNodeDevCapsDefParseXML(ctxt, def, nodes[i], create, virt_type); if (!*next_cap) { VIR_FREE(nodes); goto error; } next_cap = &(*next_cap)->next; } VIR_FREE(nodes); return def; error: virNodeDeviceDefFree(def); return NULL; } virNodeDeviceDefPtr virNodeDeviceDefParseNode(xmlDocPtr xml, xmlNodePtr root, int create, const char *virt_type) { xmlXPathContextPtr ctxt = NULL; virNodeDeviceDefPtr def = NULL; if (!xmlStrEqual(root->name, BAD_CAST "device")) { virReportError(VIR_ERR_XML_ERROR, _("unexpected root element <%s> " "expecting "), root->name); return NULL; } ctxt = xmlXPathNewContext(xml); if (ctxt == NULL) { virReportOOMError(); goto cleanup; } ctxt->node = root; def = virNodeDeviceDefParseXML(ctxt, create, virt_type); cleanup: xmlXPathFreeContext(ctxt); return def; } static virNodeDeviceDefPtr virNodeDeviceDefParse(const char *str, const char *filename, int create, const char *virt_type) { xmlDocPtr xml; virNodeDeviceDefPtr def = NULL; if ((xml = virXMLParse(filename, str, _("(node_device_definition)")))) { def = virNodeDeviceDefParseNode(xml, xmlDocGetRootElement(xml), create, virt_type); xmlFreeDoc(xml); } return def; } virNodeDeviceDefPtr virNodeDeviceDefParseString(const char *str, int create, const char *virt_type) { return virNodeDeviceDefParse(str, NULL, create, virt_type); } virNodeDeviceDefPtr virNodeDeviceDefParseFile(const char *filename, int create, const char *virt_type) { return virNodeDeviceDefParse(NULL, filename, create, virt_type); } /* * Return fc_host dev's WWNN and WWPN */ int virNodeDeviceGetWWNs(virNodeDeviceDefPtr def, char **wwnn, char **wwpn) { virNodeDevCapsDefPtr cap = NULL; int ret = -1; cap = def->caps; while (cap != NULL) { if (cap->type == VIR_NODE_DEV_CAP_SCSI_HOST && cap->data.scsi_host.flags & VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST) { if (VIR_STRDUP(*wwnn, cap->data.scsi_host.wwnn) < 0 || VIR_STRDUP(*wwpn, cap->data.scsi_host.wwpn) < 0) { /* Free the other one, if allocated... */ VIR_FREE(*wwnn); goto cleanup; } break; } cap = cap->next; } if (cap == NULL) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Device is not a fibre channel HBA")); goto cleanup; } ret = 0; cleanup: return ret; } /* * Return the NPIV dev's parent device name */ int virNodeDeviceGetParentHost(const virNodeDeviceObjListPtr devs, const char *dev_name, const char *parent_name, int *parent_host) { virNodeDeviceObjPtr parent = NULL; virNodeDevCapsDefPtr cap = NULL; int ret = 0; parent = virNodeDeviceFindByName(devs, parent_name); if (parent == NULL) { virReportError(VIR_ERR_INTERNAL_ERROR, _("Could not find parent device for '%s'"), dev_name); ret = -1; goto out; } cap = parent->def->caps; while (cap != NULL) { if (cap->type == VIR_NODE_DEV_CAP_SCSI_HOST && (cap->data.scsi_host.flags & VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS)) { *parent_host = cap->data.scsi_host.host; break; } cap = cap->next; } if (cap == NULL) { virReportError(VIR_ERR_INTERNAL_ERROR, _("Parent device %s is not capable " "of vport operations"), parent->def->name); ret = -1; } virNodeDeviceObjUnlock(parent); out: return ret; } void virNodeDevCapsDefFree(virNodeDevCapsDefPtr caps) { size_t i = 0; union _virNodeDevCapData *data = &caps->data; switch (caps->type) { case VIR_NODE_DEV_CAP_SYSTEM: VIR_FREE(data->system.product_name); VIR_FREE(data->system.hardware.vendor_name); VIR_FREE(data->system.hardware.version); VIR_FREE(data->system.hardware.serial); VIR_FREE(data->system.firmware.vendor_name); VIR_FREE(data->system.firmware.version); VIR_FREE(data->system.firmware.release_date); break; case VIR_NODE_DEV_CAP_PCI_DEV: VIR_FREE(data->pci_dev.product_name); VIR_FREE(data->pci_dev.vendor_name); VIR_FREE(data->pci_dev.physical_function); for (i = 0; i < data->pci_dev.num_virtual_functions; i++) { VIR_FREE(data->pci_dev.virtual_functions[i]); } VIR_FREE(data->pci_dev.virtual_functions); for (i = 0; i < data->pci_dev.nIommuGroupDevices; i++) { VIR_FREE(data->pci_dev.iommuGroupDevices[i]); } VIR_FREE(data->pci_dev.iommuGroupDevices); break; case VIR_NODE_DEV_CAP_USB_DEV: VIR_FREE(data->usb_dev.product_name); VIR_FREE(data->usb_dev.vendor_name); break; case VIR_NODE_DEV_CAP_USB_INTERFACE: VIR_FREE(data->usb_if.description); break; case VIR_NODE_DEV_CAP_NET: VIR_FREE(data->net.ifname); VIR_FREE(data->net.address); break; case VIR_NODE_DEV_CAP_SCSI_HOST: VIR_FREE(data->scsi_host.wwnn); VIR_FREE(data->scsi_host.wwpn); VIR_FREE(data->scsi_host.fabric_wwn); break; case VIR_NODE_DEV_CAP_SCSI_TARGET: VIR_FREE(data->scsi_target.name); break; case VIR_NODE_DEV_CAP_SCSI: VIR_FREE(data->scsi.type); break; case VIR_NODE_DEV_CAP_STORAGE: VIR_FREE(data->storage.block); VIR_FREE(data->storage.bus); VIR_FREE(data->storage.drive_type); VIR_FREE(data->storage.model); VIR_FREE(data->storage.vendor); VIR_FREE(data->storage.serial); VIR_FREE(data->storage.media_label); break; case VIR_NODE_DEV_CAP_SCSI_GENERIC: VIR_FREE(data->sg.path); break; case VIR_NODE_DEV_CAP_FC_HOST: case VIR_NODE_DEV_CAP_VPORTS: case VIR_NODE_DEV_CAP_LAST: default: /* This case is here to shutup the compiler */ break; } VIR_FREE(caps); } void virNodeDeviceObjLock(virNodeDeviceObjPtr obj) { virMutexLock(&obj->lock); } void virNodeDeviceObjUnlock(virNodeDeviceObjPtr obj) { virMutexUnlock(&obj->lock); } static bool virNodeDeviceCapMatch(virNodeDeviceObjPtr devobj, int type) { virNodeDevCapsDefPtr cap = NULL; for (cap = devobj->def->caps; cap; cap = cap->next) { if (type == cap->type) return true; if (cap->type == VIR_NODE_DEV_CAP_SCSI_HOST) { if (type == VIR_CONNECT_LIST_NODE_DEVICES_CAP_FC_HOST && (cap->data.scsi_host.flags & VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST)) return true; if (type == VIR_CONNECT_LIST_NODE_DEVICES_CAP_VPORTS && (cap->data.scsi_host.flags & VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS)) return true; } } return false; } #define MATCH(FLAG) (flags & (FLAG)) static bool virNodeDeviceMatch(virNodeDeviceObjPtr devobj, unsigned int flags) { /* filter by cap type */ if (MATCH(VIR_CONNECT_LIST_NODE_DEVICES_FILTERS_CAP)) { if (!((MATCH(VIR_CONNECT_LIST_NODE_DEVICES_CAP_SYSTEM) && virNodeDeviceCapMatch(devobj, VIR_NODE_DEV_CAP_SYSTEM)) || (MATCH(VIR_CONNECT_LIST_NODE_DEVICES_CAP_PCI_DEV) && virNodeDeviceCapMatch(devobj, VIR_NODE_DEV_CAP_PCI_DEV)) || (MATCH(VIR_CONNECT_LIST_NODE_DEVICES_CAP_USB_DEV) && virNodeDeviceCapMatch(devobj, VIR_NODE_DEV_CAP_USB_DEV)) || (MATCH(VIR_CONNECT_LIST_NODE_DEVICES_CAP_USB_INTERFACE) && virNodeDeviceCapMatch(devobj, VIR_NODE_DEV_CAP_USB_INTERFACE)) || (MATCH(VIR_CONNECT_LIST_NODE_DEVICES_CAP_NET) && virNodeDeviceCapMatch(devobj, VIR_NODE_DEV_CAP_NET)) || (MATCH(VIR_CONNECT_LIST_NODE_DEVICES_CAP_SCSI_HOST) && virNodeDeviceCapMatch(devobj, VIR_NODE_DEV_CAP_SCSI_HOST)) || (MATCH(VIR_CONNECT_LIST_NODE_DEVICES_CAP_SCSI_TARGET) && virNodeDeviceCapMatch(devobj, VIR_NODE_DEV_CAP_SCSI_TARGET)) || (MATCH(VIR_CONNECT_LIST_NODE_DEVICES_CAP_SCSI) && virNodeDeviceCapMatch(devobj, VIR_NODE_DEV_CAP_SCSI)) || (MATCH(VIR_CONNECT_LIST_NODE_DEVICES_CAP_STORAGE) && virNodeDeviceCapMatch(devobj, VIR_NODE_DEV_CAP_STORAGE)) || (MATCH(VIR_CONNECT_LIST_NODE_DEVICES_CAP_FC_HOST) && virNodeDeviceCapMatch(devobj, VIR_NODE_DEV_CAP_FC_HOST)) || (MATCH(VIR_CONNECT_LIST_NODE_DEVICES_CAP_VPORTS) && virNodeDeviceCapMatch(devobj, VIR_NODE_DEV_CAP_VPORTS)) || (MATCH(VIR_CONNECT_LIST_NODE_DEVICES_CAP_SCSI_GENERIC) && virNodeDeviceCapMatch(devobj, VIR_NODE_DEV_CAP_SCSI_GENERIC)))) return false; } return true; } #undef MATCH int virNodeDeviceObjListExport(virConnectPtr conn, virNodeDeviceObjList devobjs, virNodeDevicePtr **devices, virNodeDeviceObjListFilter filter, unsigned int flags) { virNodeDevicePtr *tmp_devices = NULL; virNodeDevicePtr device = NULL; int ndevices = 0; int ret = -1; size_t i; if (devices && VIR_ALLOC_N(tmp_devices, devobjs.count + 1) < 0) goto cleanup; for (i = 0; i < devobjs.count; i++) { virNodeDeviceObjPtr devobj = devobjs.objs[i]; virNodeDeviceObjLock(devobj); if ((!filter || filter(conn, devobj->def)) && virNodeDeviceMatch(devobj, flags)) { if (devices) { if (!(device = virGetNodeDevice(conn, devobj->def->name))) { virNodeDeviceObjUnlock(devobj); goto cleanup; } tmp_devices[ndevices] = device; } ndevices++; } virNodeDeviceObjUnlock(devobj); } if (tmp_devices) { /* trim the array to the final size */ ignore_value(VIR_REALLOC_N(tmp_devices, ndevices + 1)); *devices = tmp_devices; tmp_devices = NULL; } ret = ndevices; cleanup: if (tmp_devices) { for (i = 0; i < ndevices; i++) { if (tmp_devices[i]) virNodeDeviceFree(tmp_devices[i]); } } VIR_FREE(tmp_devices); return ret; }