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There is NO WARRANTY for this software, express or # implied, including the implied warranties of MERCHANTABILITY or FITNESS # FOR A PARTICULAR PURPOSE. You should have received a copy of GPLv2 # along with this software; if not, see # http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. # # Red Hat trademarks are not licensed under GPLv2. No permission is # granted to use or replicate Red Hat trademarks that are incorporated # in this software or its documentation. # import pyudev import os import re from hwdata import PCI, USB def get_devices(): """ Returns list of dictionaries with keys for every device in system (values are provide as example): 'bus' : 'pci' 'driver' : 'pcieport-driver' 'pciType' : '1' 'detached' : '0' 'class' : 'OTHER' 'desc' : 'Intel Corporation|5000 Series Chipset PCI Express x4 Port 2' """ # listen to uevents on all subsystems context = pyudev.Context() devices = context.list_devices() result = [] for device in devices.match_subsystem("pci").match_subsystem("usb").match_subsystem("block").match_subsystem("ccw").match_subsystem("scsi"): subsystem = device.subsystem result_item = { 'bus': subsystem, 'driver': device.driver, 'pciType': _clasify_pci_type(subsystem), 'detached': '0', # always zero? 'class': _clasify_class(device), 'desc': _get_device_desc(device), } if result_item['class'] is None: result_item['class'] = 'OTHER' if result_item['driver'] is None: result_item['driver'] = 'unknown' if subsystem == 'block': if _get_device_property(device, 'ID_BUS'): result_item['bus'] = _get_device_property(device, 'ID_BUS') result_item['device'] = device.sys_name if device.device_type == 'partition': # do not report partitions, just whole disks continue if _get_device_property(device, 'DM_NAME'): # LVM device continue if _get_device_property(device, 'MAJOR') == '1': # ram device continue if _get_device_property(device, 'MAJOR') == '7': # character devices for virtual console terminals continue # This is interpreted as Physical. But what to do with it? # result_item['prop1'] = '' # This is interpreted as Logical. But what to do with it? # result_item['prop2'] = '' elif subsystem == 'pci': pci_class = _get_device_property(device, 'PCI_ID') if pci_class: (result_item['prop1'], result_item['prop2']) = pci_class.split(':') pci_subsys = _get_device_property(device, 'PCI_SUBSYS_ID') if pci_subsys: (result_item['prop3'], result_item['prop4']) = pci_subsys.split(':') elif subsystem == 'usb': if _get_device_property(device, 'ID_VENDOR_ID'): result_item['prop1'] = _get_device_property(device, 'ID_VENDOR_ID') if _get_device_property(device, 'ID_MODEL_ID'): result_item['prop2'] = _get_device_property(device, 'ID_MODEL_ID') if _get_device_property(device, 'ID_BUS') and _get_device_property(device, 'ID_BUS') == 'scsi': if _get_device_property(device, 'ID_PATH') or _get_device_property(device, 'DEVPATH'): if _get_device_property(device, 'ID_PATH'): path = _get_device_property(device, 'ID_PATH') m = re.search('.*scsi-(\d+):(\d+):(\d+):(\d+)', path) else: # device.has_property('DEVPATH') path = _get_device_property(device, 'DEVPATH') m = re.search('.*/(\d+):(\d+):(\d+):(\d+)/block/', path) if m: # do not fail, if regexp did not match result_item['prop1'] = m.group(1) # DEV_HOST result_item['prop2'] = m.group(2) # DEV_ID result_item['prop3'] = m.group(3) # DEV_CHANNEL result_item['prop4'] = m.group(4) # DEV_LUN result.append(result_item) return result def get_computer_info(): """ Return dictionaries with keys (values are provided as example): 'system.formfactor': 'unknown' 'system.kernel.version': '2.6.18-128.1.6.el5xen' 'system.kernel.machine': 'i686' 'system.kernel.name': 'Linux' """ uname = os.uname() result = { 'system.kernel.name': uname[0], 'system.kernel.version': uname[2], 'system.kernel.machine': uname[4], } return result #PCI DEVICE DEFINES # These are taken from pci_ids.h in the linux kernel source and used to # properly identify the hardware PCI_BASE_CLASS_STORAGE = '1' PCI_CLASS_STORAGE_SCSI = '00' PCI_CLASS_STORAGE_IDE = '01' PCI_CLASS_STORAGE_FLOPPY = '02' PCI_CLASS_STORAGE_IPI = '03' PCI_CLASS_STORAGE_RAID = '04' PCI_CLASS_STORAGE_OTHER = '80' PCI_BASE_CLASS_NETWORK = '2' PCI_CLASS_NETWORK_ETHERNET = '00' PCI_CLASS_NETWORK_TOKEN_RING = '01' PCI_CLASS_NETWORK_FDDI = '02' PCI_CLASS_NETWORK_ATM = '03' PCI_CLASS_NETWORK_OTHER = '80' PCI_BASE_CLASS_DISPLAY = '3' PCI_CLASS_DISPLAY_VGA = '00' PCI_CLASS_DISPLAY_XGA = '01' PCI_CLASS_DISPLAY_3D = '02' PCI_CLASS_DISPLAY_OTHER = '80' PCI_BASE_CLASS_MULTIMEDIA = '4' PCI_CLASS_MULTIMEDIA_VIDEO = '00' PCI_CLASS_MULTIMEDIA_AUDIO = '01' PCI_CLASS_MULTIMEDIA_PHONE = '02' PCI_CLASS_MULTIMEDIA_OTHER = '80' PCI_BASE_CLASS_BRIDGE = '6' PCI_CLASS_BRIDGE_HOST = '00' PCI_CLASS_BRIDGE_ISA = '01' PCI_CLASS_BRIDGE_EISA = '02' PCI_CLASS_BRIDGE_MC = '03' PCI_CLASS_BRIDGE_PCI = '04' PCI_CLASS_BRIDGE_PCMCIA = '05' PCI_CLASS_BRIDGE_NUBUS = '06' PCI_CLASS_BRIDGE_CARDBUS = '07' PCI_CLASS_BRIDGE_RACEWAY = '08' PCI_CLASS_BRIDGE_OTHER = '80' PCI_BASE_CLASS_COMMUNICATION = '7' PCI_CLASS_COMMUNICATION_SERIAL = '00' PCI_CLASS_COMMUNICATION_PARALLEL = '01' PCI_CLASS_COMMUNICATION_MULTISERIAL = '02' PCI_CLASS_COMMUNICATION_MODEM = '03' PCI_CLASS_COMMUNICATION_OTHER = '80' PCI_BASE_CLASS_INPUT = '9' PCI_CLASS_INPUT_KEYBOARD = '00' PCI_CLASS_INPUT_PEN = '01' PCI_CLASS_INPUT_MOUSE = '02' PCI_CLASS_INPUT_SCANNER = '03' PCI_CLASS_INPUT_GAMEPORT = '04' PCI_CLASS_INPUT_OTHER = '80' PCI_BASE_CLASS_SERIAL = 'C' PCI_CLASS_SERIAL_FIREWIRE = '00' PCI_CLASS_SERIAL_ACCESS = '01' PCI_CLASS_SERIAL_SSA = '02' PCI_CLASS_SERIAL_USB = '03' PCI_CLASS_SERIAL_FIBER = '04' PCI_CLASS_SERIAL_SMBUS = '05' def _clasify_pci_type(subsystem): """ return 1 if device is PCI, otherwise -1 """ if subsystem == 'pci': return '1' else: return '-1' def _get_device_property(device, prop): """ return the property of the given device independent of the implementation version """ try: return device.properties.get(prop) except AttributeError: return device.get(prop) def _clasify_class(device): """ Clasify type of device. Returned value is one of following string: NETWORK, KEYBOARD, MOUSE, VIDEO, USB, IDE, SCSI, RAID, MODEM, SCANNER CAPTURE, AUDIO, FIREWIRE, SOCKET, CDROM, HD, FLOPPY, TAPE, PRINTER, OTHER or None if it is neither PCI nor USB device. """ (base_class, sub_class) = _parse_pci_class(_get_device_property(device, 'PCI_CLASS')) subsystem = device.subsystem # network devices if base_class == PCI_BASE_CLASS_NETWORK: return 'OTHER' # if set as 'NETWORK' it will not display in HW tab # input devices # pci if base_class == PCI_BASE_CLASS_INPUT: if sub_class == PCI_CLASS_INPUT_KEYBOARD: return 'KEYBOARD' elif sub_class == PCI_CLASS_INPUT_MOUSE: return 'MOUSE' # usb id_serial = _get_device_property(device, 'ID_SERIAL') if id_serial: id_serial = id_serial.lower() # KEYBOARD <-- do this before mouse, some keyboards have built-in mice if 'keyboard' in id_serial: return 'KEYBOARD' # MOUSE if 'mouse' in id_serial: return 'MOUSE' if base_class: # PCI Devices if base_class == PCI_BASE_CLASS_DISPLAY: return 'VIDEO' elif base_class == PCI_BASE_CLASS_SERIAL: if sub_class == PCI_CLASS_SERIAL_USB: return 'USB' elif sub_class == PCI_CLASS_SERIAL_FIREWIRE: return 'FIREWIRE' elif base_class == PCI_BASE_CLASS_STORAGE: if sub_class == PCI_CLASS_STORAGE_IDE: return 'IDE' elif sub_class == PCI_CLASS_STORAGE_SCSI: return 'SCSI' elif sub_class == PCI_CLASS_STORAGE_RAID: return 'RAID' elif sub_class == PCI_CLASS_STORAGE_FLOPPY: return 'FLOPPY' elif base_class == PCI_BASE_CLASS_COMMUNICATION and sub_class == PCI_CLASS_COMMUNICATION_MODEM: return 'MODEM' elif base_class == PCI_BASE_CLASS_INPUT and sub_class == PCI_CLASS_INPUT_SCANNER: return 'SCANNER' elif base_class == PCI_BASE_CLASS_MULTIMEDIA: if sub_class == PCI_CLASS_MULTIMEDIA_VIDEO: return 'CAPTURE' elif sub_class == PCI_CLASS_MULTIMEDIA_AUDIO: return 'AUDIO' elif base_class == PCI_BASE_CLASS_BRIDGE and ( sub_class == PCI_CLASS_BRIDGE_PCMCIA or sub_class == PCI_CLASS_BRIDGE_CARDBUS ): return 'SOCKET' if subsystem == 'block': if _get_device_property(device, 'ID_CDROM') or ( _get_device_property(device, 'ID_TYPE') and _get_device_property(device, 'ID_TYPE') == 'cd'): return 'CDROM' else: return 'HD' elif subsystem == 'sound': return 'AUDIO' if subsystem =='scsi': if device.device_type =='scsi_device': dev_type = _get_scsi_dev_type(device) if dev_type == 0 or dev_type == 14: return 'HD' elif dev_type == 1: return 'TAPE' elif dev_type == 5: return 'CDROM' else: return 'OTHER' # PRINTER m = re.search('.*/lp\d+$', device.sys_path) if m: return 'PRINTER' if subsystem == 'scsi': return 'SCSI' # Catchall for specific devices, only do this after all the others if subsystem == 'pci' or subsystem == 'usb': return 'OTHER' # No class found return None def _get_device_desc(device): """ Return human readable description of device. """ subsystem = device.subsystem command = None result = None if subsystem == 'pci': (vendor_id, device_id) = _get_device_property(device, 'PCI_ID').split(':') pci = PCI() result = "%s|%s" % (pci.get_vendor(vendor_id), pci.get_device(vendor_id, device_id)) elif subsystem == 'usb': vendor_id = _get_device_property(device, 'ID_VENDOR_ID') usb = USB() if vendor_id: result = "%s|%s" % (usb.get_vendor(vendor_id), usb.get_device(vendor_id, _get_device_property(device, 'ID_MODEL_ID'))) elif device.device_type == 'usb_interface': if device.driver == 'usbhid': result = 'USB HID Interface' elif device.driver == 'hub': result = 'USB Hub Interface' else: result = 'USB Interface' elif device.device_type == 'usb_device' and _get_device_property(device, 'PRODUCT'): (vendor_id, model_id) = _get_device_property(device, 'PRODUCT').split('/')[:2] # left pad it with 0 to 4 digits vendor_id = '%.4x' % int(vendor_id, 16) model_id = '%.4x' % int(model_id, 16) result = "%s|%s" % (usb.get_vendor(vendor_id), usb.get_device(vendor_id, model_id)) elif subsystem == 'block': result = _get_device_property(device, 'ID_MODEL') if result: return result else: return '' def _parse_pci_class(pci_class): """ Parse Class Code. Return touple of [base class code, sub-class code] You are usually interested to only first two. The third - "specific register-level programming interface" is ignored. For details, see the PCI Local Bus Specification 2.1/2.2 Section 6.2.1 Device Identification """ if pci_class is None: return (None, None) else: return (pci_class[-6:-4], pci_class[-4:-2]) def _get_scsi_dev_type(device): """ Return SCSI type of device in raw format as presented in /sys/...devpath../type """ try: f = open("%s/type" % device.sys_path, 'r') except IOError: return -1 result = f.readline() f.close() return result