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#!/usr/bin/env python3

# Copyright (c) 2014  Kontron Europe GmbH
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA

from __future__ import print_function

import sys
import getopt
import json
import logging
import traceback
import pprint
from array import array

from collections import namedtuple

import pyipmi
import pyipmi.interfaces
from pyipmi.utils import py3_array_tobytes

json_output = False

Command = namedtuple('Command', 'name fn')
CommandHelp = namedtuple('CommandHelp', 'name arguments help')


def _print(s):
    print(s)


def _get_command_function(name):
    for cmd in COMMANDS:
        if cmd.name == name:
            return cmd.fn
    return None


def cmd_bmc_info(ipmi, args):
    device_id = ipmi.get_device_id()
    print('''
Device ID:          %(device_id)s
Device Revision:    %(revision)s
Firmware Revision:  %(fw_revision)s
IPMI Version:       %(ipmi_version)s
Manufacturer ID:    %(manufacturer_id)d (0x%(manufacturer_id)04x)
Product ID:         %(product_id)d (0x%(product_id)04x)
Device Available:   %(available)d
Provides SDRs:      %(provides_sdrs)d
Additional Device Support:
'''[1:-1] % device_id.__dict__)

    functions = (
            ('SENSOR', 'Sensor Device'),
            ('SDR_REPOSITORY', 'SDR Repository Device'),
            ('SEL', 'SEL Device'),
            ('FRU_INVENTORY', 'FRU Inventory Device'),
            ('IPMB_EVENT_RECEIVER', 'IPMB Event Receiver'),
            ('IPMB_EVENT_GENERATOR', 'IPMB Event Generator'),
            ('BRIDGE', 'Bridge'),
            ('CHASSIS', 'Chassis Device')
    )
    for n, s in functions:
        if device_id.supports_function(n):
            print('  %s' % s)

    if device_id.aux is not None:
        print('Aux Firmware Rev Info:  [{:s}]'.format(
              ' '.join('%02x' % d for d in device_id.aux)))


def cmd_sel_clear(ipmi, args):
    ipmi.clear_sel()


def cmd_sensor_rearm(ipmi, args):
    if len(args) < 1:
        return
    number = int(args[0], 0)
    ipmi.rearm_sensor_events(number)


def sdr_show(ipmi, s):

    print("SDR record ID:    0x%04x" % s.id)
    print("SDR type:         0x%02x" % s.type)
    print("Device Id string: %s" % s.device_id_string)
    print("Entity:           %s.%s" % (s.entity_id, s.entity_instance))
    if s.type is pyipmi.sdr.SDR_TYPE_FULL_SENSOR_RECORD:
        (raw, states) = ipmi.get_sensor_reading(s.number, s.owner_lun)
        value = s.convert_sensor_raw_to_value(raw)
        if value is None:
            value = "na"
        t_unr = s.convert_sensor_raw_to_value(s.threshold['unr'])
        t_ucr = s.convert_sensor_raw_to_value(s.threshold['ucr'])
        t_unc = s.convert_sensor_raw_to_value(s.threshold['unc'])
        t_lnc = s.convert_sensor_raw_to_value(s.threshold['lnc'])
        t_lcr = s.convert_sensor_raw_to_value(s.threshold['lcr'])
        t_lnr = s.convert_sensor_raw_to_value(s.threshold['lnr'])
        print("Reading value:    %s" % value)
        print("Reading state:    0x%x" % states)
        print("UNR:              %s" % t_unr)
        print("UCR:              %s" % t_ucr)
        print("UNC:              %s" % t_unc)
        print("LNC:              %s" % t_lnc)
        print("LCR:              %s" % t_lcr)
        print("LNR:              %s" % t_lnr)
    elif s.type is pyipmi.sdr.SDR_TYPE_COMPACT_SENSOR_RECORD:
        (raw, states) = ipmi.get_sensor_reading(s.number)
        print("Reading:          %s" % raw)
        print("Reading state:    0x%x" % states)


def cmd_sdr_show_raw(ipmi, args):
    if len(args) != 1:
        usage()
        return
    try:
        sdr = ipmi.get_device_sdr(int(args[0], 0))
        print(' '.join(['0x%02x' % b for b in sdr.data]))
    except ValueError:
        print('')


def cmd_sdr_show(ipmi, args):
    if len(args) != 1:
        usage()
        return

    try:
        s = ipmi.get_device_sdr(int(args[0], 0))
        sdr_show(ipmi, s)
    except ValueError:
        print('')


def cmd_sdr_show_all(ipmi, args):
    for s in ipmi.device_sdr_entries():
        try:
            sdr_show(ipmi, s)
        except ValueError:
            print('')
        print("\n")


def print_sdr_list_entry(record_id, number, id_string, value, states):
    if number:
        number = str(number)
    else:
        number = 'na'

    if states:
        states = hex(states)
    else:
        states = 'na'

    print("0x%04x | %3s | %-18s | %9s | %s" % (record_id, number,
                                               id_string, value, states))


def cmd_sdr_list(ipmi, args):
    iter_fct = None

    device_id = ipmi.get_device_id()
    if device_id.supports_function('sdr_repository'):
        iter_fct = ipmi.sdr_repository_entries
    elif device_id.supports_function('sensor'):
        iter_fct = ipmi.device_sdr_entries

    print("SDR-ID |     | Device String      |")
    print("=======|=====|====================|====================")

    for s in iter_fct():
        try:
            number = None
            value = None
            states = None

            if s.type is pyipmi.sdr.SDR_TYPE_FULL_SENSOR_RECORD:
                (value, states) = ipmi.get_sensor_reading(s.number)
                number = s.number
                if value is not None:
                    value = s.convert_sensor_raw_to_value(value)

            elif s.type is pyipmi.sdr.SDR_TYPE_COMPACT_SENSOR_RECORD:
                (value, states) = ipmi.get_sensor_reading(s.number)
                number = s.number

            id_string = getattr(s, 'device_id_string', None)

            print_sdr_list_entry(s.id, number, id_string, value, states)

        except pyipmi.errors.CompletionCodeError as e:
            if s.type in (pyipmi.sdr.SDR_TYPE_COMPACT_SENSOR_RECORD,
                          pyipmi.sdr.SDR_TYPE_FULL_SENSOR_RECORD):
                print('0x{:04x} | {:3d} | {:18s} | ERR: CC=0x{:02x}'.format(
                      s.id,
                      s.number,
                      s.device_id_string,
                      e.cc))


def cmd_fru_print(ipmi, args):
    fru_id = 0
    print_all = False
    if len(args) > 0:
        fru_id = int(args[0])
    if len(args) > 1 and args[1] == 'all':
        print_all = True

    inv = ipmi.get_fru_inventory(fru_id)

    # Chassis Info Area
    area = inv.chassis_info_area
    if area:
        print('''
Chassis Info Area:
  Type:               %(type)d
  Part Number:        %(part_number)s
  Serial Number:      %(serial_number)s
'''[1:-1] % area.__dict__)

        if len(area.custom_chassis_info) != 0:
            print('  Custom Chassis Info Records:')
            for field in area.custom_chassis_info:
                print('    %s' % field)

    # Board Info Area
    area = inv.board_info_area
    if area:
        print('''
Board Info Area:
  Mfg. Date / Time:   %(mfg_date)s
  Manufacturer:       %(manufacturer)s
  Product Name:       %(product_name)s
  Serial Number:      %(serial_number)s
  Part Number:        %(part_number)s
  FRU File ID:        %(fru_file_id)s
'''[1:-1] % area.__dict__)

        if len(area.custom_mfg_info) != 0:
            print('  Custom Board Info Records:')
            for field in area.custom_mfg_info:
                print('    %s' % field)

    # Product Info Area
    area = inv.product_info_area
    if area:
        print('''
Product Info Area:
  Manufacturer:       %(manufacturer)s
  Name:               %(name)s
  Part/Model Number:  %(part_number)s
  Version:            %(version)s
  Serial Number:      %(serial_number)s
  Asset:              %(asset_tag)s
  FRU File ID:        %(fru_file_id)s
'''[1:-1] % area.__dict__)

        if len(area.custom_mfg_info) != 0:
            print('  Custom Board Info Records:')
            for field in area.custom_mfg_info:
                print('    %s' % field)

    # Multirecords
    area = inv.multirecord_area
    if area:
        print('Multirecord Area:')
        if print_all:
            for record in area.records:
                print('  %s' % record)
        else:
            print('  Skipped. Use "print <fruid> all"')


def cmd_raw(ipmi, args):
    lun = 0
    if len(args) > 1 and args[0] == 'lun':
        lun = int(args[1], 0)
        args = args[2:]

    if len(args) < 2:
        usage()
        return

    netfn = int(args[0], 0)
    raw_bytes = array('B', [int(d, 0) for d in args[1:]])
    rsp = ipmi.raw_command(lun, netfn, py3_array_tobytes(raw_bytes))
    print(' '.join('%02x' % d for d in array('B', rsp)))


def cmd_hpm_capabilities(ipmi, args):
    cap = ipmi.get_target_upgrade_capabilities()

    for c in cap.components:
        properties = ipmi.get_component_properties(c)
        print("Component ID: %d" % c)
        for prop in properties:
            print("  %s" % prop)


def cmd_hpm_check_file(ipmi, args):
    if len(args) < 1:
        return
    cap = ipmi.open_upgrade_image(args[0])

    print(cap.header)
    for action in cap.actions:
        print(action)


def cmd_hpm_install(ipmi, args):
    if len(args) < 2:
        print('missing argument')
        return
    ipmi.install_component_from_file(args[0], int(args[1]))


def cmd_chassis_status(ipmi, args):
    status = ipmi.get_chassis_status()

    if json_output:
        status = {
                  'power_on': status.power_on,
                  'overload': status.overload,
                  'interlock': status.interlock,
                  'fault': status.fault,
                  'ctrl_fault': status.control_fault,
                  'restore_policy': status.restore_policy
                 }
        print(json.dumps(status))
        pass
    else:

        print('''
Power ON:          %(power_on)s
Overload:          %(overload)s
Interlock:         %(interlock)s
Fault:             %(fault)s
Ctrl Fault:        %(control_fault)s
Restore Policy:    %(restore_policy)s
'''[1:-1] % status.__dict__)

        for event in status.last_event:
            print(event)
        for state in status.chassis_state:
            print(state)


def cmd_picmg_get_power(ipmi, args):
    pwr = ipmi.get_power_level(0, 0)
    print(pwr)


def print_link_state(p, s):
    intf_str = pyipmi.picmg.LinkDescriptor().get_interface_string(p.interface)
    link_str = pyipmi.picmg.LinkDescriptor().get_link_type_string(
            p.type, p.extension, p.sig_class)
    print('CH=%02d INTF=%d FLAGS=0x%x TYPE=%d SIG=%d EXT=%d STATE=%d (%s/%s)'
          % (p.channel, p.interface, p.link_flags, p.type, p.sig_class,
             p.extension, s, intf_str, link_str))


def cmd_picmg_get_portstate_all(ipmi, args):
    for interface in range(3):
        for channel in range(16):
            try:
                (p, s) = ipmi.get_port_state(channel, interface)
                print_link_state(p, s)
            except pyipmi.errors.CompletionCodeError as e:
                if e.cc == 0xcc:
                    continue


def cmd_picmg_get_portstate(ipmi, args):
    if len(args) < 2:
        return
    channel = int(args[0])
    interface = int(args[1])
    (p, s) = ipmi.get_port_state(channel, interface)
    print_link_state(p, s)


def cmd_picmg_getpower_channel_status(ipmi, args):
    ret = ipmi.get_power_channel_status(int(args[0]))
    pprint.pprint(vars(ret))


def cmd_picmg_frucontrol_cold_reset(ipmi, args):
    ipmi.fru_control_cold_reset(0)


def cmd_picmg_send_pm_heartbeat(ipmi, args):
    ipmi.send_pm_heartbeat()


def cmd_picmg_send_channel_power(ipmi, args):
    ipmi.send_channel_power(int(args[0]))


def usage(toplevel=False):
    commands = []
    maxlen = 0

    if toplevel:
        argv = []
    else:
        argv = sys.argv[1:]

    # (1) try to find help for commands on exactly one level above
    for cmd in COMMAND_HELP:
        subcommands = cmd.name.split(' ')
        if (len(subcommands) == len(argv) + 1
                and subcommands[:len(argv)] == argv):
            commands.append(cmd)
            if cmd.arguments:
                maxlen = max(maxlen, len(cmd.name)+len(cmd.arguments)+1)
            else:
                maxlen = max(maxlen, len(cmd.name))

    # (2) if nothing found, try to find help on any level above
    if maxlen == 0:
        for cmd in COMMAND_HELP:
            subcommands = cmd.name.split(' ')
            if (len(subcommands) > len(argv) + 1
                    and subcommands[:len(argv)] == argv):
                commands.append(cmd)
                if cmd.arguments:
                    maxlen = max(maxlen, len(cmd.name)+len(cmd.arguments)+1)
                else:
                    maxlen = max(maxlen, len(cmd.name))

    # (3) find help on same level
    if maxlen == 0:
        for cmd in COMMAND_HELP:
            subcommands = cmd.name.split(' ')
            if (len(subcommands) == len(argv)
                    and subcommands[:len(argv)] == argv):
                commands.append(cmd)
                if cmd.arguments:
                    maxlen = max(maxlen, len(cmd.name)+len(cmd.arguments)+1)
                else:
                    maxlen = max(maxlen, len(cmd.name))

    # if still nothing found, print toplevel usage
    if maxlen == 0:
        usage(toplevel=True)
        return

    if len(argv) == 0:
        version()
        print('usage: ipmitool [options...] <command>')
        print('''
Options:
  -t <addr>        Set target IPMB address
  -b <channel>     Set target channel
  -r <rtr>         Set target routing (not supported atm)
  -h               Show this help
  -v               Be verbose
  -V               Print version
  -I <interface>   Set interface (available: rmcp, aardvark, ipmitool, ipmbdev)
  -H <host>        Set RMCP host
  -U <user>        Set RMCP user
  -L <level>       Set RMCP priviledge level
  -P <password>    Set RMCP password
  -o <options>     Set interface specific options (name=value, separated
                   by commas, see below for available options).
'''[1:])
        print('''
Aardvark interface options:
  serial=<SN>       Serial number of the device
  pullups=<on|off>  Enable/disable pullups
  power=<on|off>    Enable/disable target power
  fastmode=<on|off> Enable/disable 400kHz I2C bitrate (Default 100kHz)

Ipmitool interface options:
  interface_type    Set the interface type to be used (lan, lanplus, serial, open)
  cipher            Set the cipher to be used (0-255)

Ipmbdev interface options:
  port=<path>       Specify path to Linux IPMB device (/dev/ipmb-0 by default)
'''[1:])
        print('Commands:')

    for cmd in commands:
        name = cmd.name
        if cmd.arguments:
            name = '%s %s' % (name, cmd.arguments)
        print('  %-*s   %s' % (maxlen, name, cmd.help))


def version():
    print('ipmitool v%s' % pyipmi.__version__)


def parse_interface_options(interface_name, options):
    if options:
        options = options.split(',')

    interface_options = {}

    for option in options:
        (name, value) = option.split('=', 1)
        if interface_name == 'aardvark':
            if name == 'serial':
                interface_options['serial_number'] = value
            elif (name, value) == ('pullups', 'on'):
                interface_options['enable_i2c_pullups'] = True
            elif (name, value) == ('pullups', 'off'):
                interface_options['enable_i2c_pullups'] = False
            elif (name, value) == ('power', 'on'):
                interface_options['enable_target_power'] = True
            elif (name, value) == ('power', 'off'):
                interface_options['enable_target_power'] = False
            elif (name, value) == ('fastmode', 'on'):
                interface_options['enable_fastmode'] = True
            elif (name, value) == ('fastmode', 'off'):
                interface_options['enable_fastmode'] = False
            else:
                print('Warning: unknown option %s' % name)
        elif interface_name == 'ipmitool':
            if name == 'interface_type':
                interface_options['interface_type'] = value
            elif name == 'cipher':
                interface_options['cipher'] = value
            else:
                print('Warning: unknown option %s' % name)
        elif interface_name == 'ipmbdev':
            if name == 'port':
                interface_options['port'] = value

    return interface_options


def main():
    try:
        opts, args = getopt.getopt(sys.argv[1:], 't:hvVI:H:U:P:L:o:b:p:r:J')
    except getopt.GetoptError as err:
        print(str(err))
        usage()
        sys.exit(2)
    verbose = False
    interface_name = 'aardvark'
    target_address = 0x20
    target_routing = None
    rmcp_host = None
    rmcp_port = 623
    rmcp_user = ''
    rmcp_password = ''
    rmcp_priv_level = None
    interface_options = list()
    for o, a in opts:
        if o == '-v':
            verbose = True
        elif o == '-h':
            usage()
            sys.exit()
        elif o == '-V':
            version()
            sys.exit()
        elif o == '-t':
            target_address = int(a, 0)
        elif o == '-b':
            target_routing = [(0x20, int(a), 0)]
        elif o == '-r':
            target_routing = a
        elif o == '-H':
            rmcp_host = a
        elif o == '-p':
            rmcp_port = int(a, 0)
        elif o == '-U':
            rmcp_user = a
        elif o == '-P':
            rmcp_password = a
        elif o == '-L':
            rmcp_priv_level = a
        elif o == '-I':
            interface_name = a
        elif o == '-o':
            interface_options = a
        elif o == '-J':
            global json_output
            json_output = True
        else:
            assert False, 'unhandled option'

    # fake sys.argv
    sys.argv = [sys.argv[0]] + args

    if len(args) == 0:
        usage()
        sys.exit(1)

    handler = logging.StreamHandler()
    if verbose:
        handler.setLevel(logging.DEBUG)
    else:
        handler.setLevel(logging.INFO)
    pyipmi.logger.add_log_handler(handler)
    pyipmi.logger.set_log_level(logging.DEBUG)

    for i in range(len(args)):
        cmd = _get_command_function(' '.join(args[0:i+1]))
        if cmd is not None:
            args = args[i+1:]
            break
    else:
        usage()
        sys.exit(1)

    interface_options = parse_interface_options(interface_name,
                                                interface_options)

    try:
        interface = pyipmi.interfaces.create_interface(interface_name,
                                                       **interface_options)
    except RuntimeError as e:
        print(e)
        sys.exit(1)

    ipmi = pyipmi.create_connection(interface)
    ipmi.target = pyipmi.Target(target_address)

    if target_routing is not None:
        ipmi.target.set_routing(target_routing)

    if rmcp_host is not None:
        ipmi.session.set_session_type_rmcp(rmcp_host, rmcp_port)
        ipmi.session.set_auth_type_user(rmcp_user, rmcp_password)

        if rmcp_priv_level is not None:
            ipmi.session.set_priv_level(rmcp_priv_level)

        ipmi.session.establish()

    try:
        cmd(ipmi, args)
    except pyipmi.errors.CompletionCodeError as e:
        print('Command returned with completion code 0x%02x' % e.cc)
        if verbose:
            traceback.print_exc()
        sys.exit(1)
    except pyipmi.errors.IpmiTimeoutError:
        print('Command timed out')
        if verbose:
            traceback.print_exc()
        sys.exit(1)
    except KeyboardInterrupt:
        if verbose:
            traceback.print_exc()
        sys.exit(1)

    finally:
        if rmcp_host is not None:
            ipmi.session.close()


COMMANDS = (
        Command('bmc info', cmd_bmc_info),
        Command('bmc reset cold', lambda i, a: i.cold_reset()),
        Command('bmc reset warm', lambda i, a: i.warm_reset()),
        Command('sel list', lambda i, a: list(map(_print, i.sel_entries()))),
        Command('sel clear', cmd_sel_clear),
        Command('sensor rearm', cmd_sensor_rearm),
        Command('sdr list', cmd_sdr_list),
        Command('sdr raw', cmd_sdr_show_raw),
        Command('sdr show', cmd_sdr_show),
        Command('sdr showall', cmd_sdr_show_all),
        Command('fru print', cmd_fru_print),
        Command('picmg frucontrol cr', cmd_picmg_frucontrol_cold_reset),
        Command('picmg power get', cmd_picmg_get_power),
        Command('picmg portstate get', cmd_picmg_get_portstate),
        Command('picmg portstate getall', cmd_picmg_get_portstate_all),
        Command('picmg channel status', cmd_picmg_getpower_channel_status),
        Command('picmg send heartbeat', cmd_picmg_send_pm_heartbeat),
        Command('picmg channel power', cmd_picmg_send_channel_power),
        Command('raw', cmd_raw),
        Command('hpm capabilities', cmd_hpm_capabilities),
        Command('hpm check', cmd_hpm_check_file),
        Command('hpm install', cmd_hpm_install),
        Command('chassis status', cmd_chassis_status),
        Command('chassis power off',
                lambda i, a: i.chassis_control_power_down()),
        Command('chassis power on',
                lambda i, a: i.chassis_control_power_up()),
        Command('chassis power cycle',
                lambda i, a: i.chassis_control_power_cycle()),
        Command('chassis power reset',
                lambda i, a: i.chassis_control_hard_reset()),
        Command('chassis power diag',
                lambda i, a: i.chassis_control_power_diagnostic_interrupt()),
        Command('chassis power soft',
                lambda i, a: i.chassis_control_power_soft_shutdown()),
)

COMMAND_HELP = (
        CommandHelp('raw', None, 'Send a RAW IPMI request and print response'),

        CommandHelp('fru', None,
                    'Print built-in FRU and scan SDR for FRU locators'),

        CommandHelp('sensor', None, None),
        CommandHelp('sensor rearm', '<sensor-numer>', 'Rearm Sensor Events'),

        CommandHelp('sel', None, 'Print System Event Log (SEL)'),
        CommandHelp('sel list', None, 'List all SEL entries'),
        CommandHelp('sel clear', None, 'Clear SEL'),

        CommandHelp('sdr', None,
                    'Print Sensor Data Repository entries and readings'),
        CommandHelp('sdr list', None, 'List all SDRs'),
        CommandHelp('sdr raw', '<sdr-id>', 'Show SDR raw data'),
        CommandHelp('sdr show', '<sdr-id>', 'Show detail for one SDR'),
        CommandHelp('sdr showall', None, 'Show detail for all SDRs'),

        CommandHelp('bmc', None,
                    'Management Controller status and global enables'),
        CommandHelp('bmc info', None, 'BMC Device ID inforamtion'),
        CommandHelp('bmc reset', '<cold|warm>', 'BMC reset control'),

        CommandHelp('picmg', None, 'PICMG commands'),
        CommandHelp('picmg frucontrol', '<cr>', 'Issue frucontrol'),
        CommandHelp('picmg power get', 'get PICMG power level',
                    'Request the power level'),
        CommandHelp('picmg portstate getall', '',
                    'Request all portstates for all interfaces'),
        CommandHelp('picmg portstate get', '<channel> <interface>',
                    'Request the portstate for an interface'),

        CommandHelp('hpm', None, 'HPM.1 commands'),
        CommandHelp('hpm capabilities', 'HPM.1 target upgrade capabilities',
                    'Request the target upgrade capabilities'),
        CommandHelp('hpm check', 'HPM.1 file check',
                    'Check the specified HPM.1 file'),
        CommandHelp('hpm install', '<file> <component id>',
                    'Install the specified HPM.1 file to the controller'),

        CommandHelp('chassis', None, 'Get chassis status and set power state'),
        CommandHelp('chassis status', '', 'Get chassis status'),
        CommandHelp('chassis power', '<on|off|cycle|reset|diag|soft>',
                    'Set power state')
)


if __name__ == '__main__':
    main()
F1l3 Manager
