/usr/share/pyshared/tcm_node.py is in lio-utils 3.1+git2.fd0b34fd-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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from __future__ import with_statement
import os, sys, signal
import subprocess as sub
import string
import re
import errno
import uuid
import shutil
from optparse import OptionParser
import tcm_pscsi
import tcm_iblock
import tcm_ramdisk
import tcm_fileio
tcm_root = "/sys/kernel/config/target/core"
def tcm_err(msg):
print >> sys.stderr, msg
sys.exit(1)
def tcm_read(filename):
try:
with open(filename) as f:
return f.read()
except IOError, (errno, strerror):
if errno == 2:
tcm_err("%s %s\n%s" % (filename, strerror, "Is kernel module loaded?") )
def tcm_write(filename, value, newline=True):
try:
with open(filename, "w") as f:
f.write(value)
if newline:
f.write("\n")
except IOError, (errno, strerror):
if errno == 2:
tcm_err("%s %s\n%s" % (filename, strerror, "Is kernel module loaded?") )
def tcm_full_path(arg):
return tcm_root + "/" + arg
def tcm_check_dev_exists(dev_path):
full_path = tcm_full_path(dev_path)
if not os.path.isdir(full_path):
tcm_err("TCM/ConfigFS storage object does not exist: " + full_path)
def tcm_add_alua_lugp(gp_name):
os.makedirs(tcm_root + "/alua/lu_gps/" + gp_name)
try:
tcm_write(tcm_root + "/alua/lu_gps/%s/lu_gp_id" % lu_gp_name, lu_gp_name)
except:
os.rmdir(tcm_root + "/alua/lu_gps/" + lu_gp_name)
raise
def tcm_add_alua_tgptgp(dev_path, gp_name):
tcm_check_dev_exists(dev_path)
alua_cfs_path = tcm_full_path(dev_path) + "alua/" + gp_name + "/"
os.makedirs(alua_cfs_path)
try:
tcm_write(alua_cfs_path + "tg_pt_gp_id", "0")
except:
os.rmdir(alua_cfs_path)
raise
def tcm_alua_check_metadata_dir(dev_path):
alua_path = "/var/target/alua/tpgs_" + tcm_get_unit_serial(dev_path) + "/"
if os.path.isdir(alua_path):
return
# Create the ALUA metadata directory for the passed storage object
# if it does not already exist.
os.makedirs(alua_path)
def tcm_alua_delete_metadata_dir(unit_serial):
try:
os.rmdir("/var/target/alua/tpgs_" + unit_serial + "/")
except OSError:
pass
def tcm_alua_process_metadata(dev_path, gp_name, gp_id):
alua_gp_path = tcm_full_path(dev_path) + "/alua/" + gp_name
alua_md_path = "/var/target/alua/tpgs_" + tcm_get_unit_serial(dev_path) \
+ "/" + gp_name
if not os.path.isfile(alua_md_path):
# If not pre-existing ALUA metadata exists, go ahead and
# allow new ALUA state changes to create and update the
# struct file metadata
tcm_write(alua_gp_path + "/alua_write_metadata", "1")
return
with open(alua_md_path, 'rU') as p:
d = dict()
for line in p.readlines():
name, value = line.split("=")
d[name.strip()] = value.strip()
if "tg_pt_gp_id" in d and int(d["tg_pt_gp_id"]) != int(gp_id):
raise IOError("Passed tg_pt_gp_id: %s does not match extracted: %s" % \
(gp_id, d["tg_pt_gp_id"]))
if "alua_access_state" in d:
tcm_write(alua_gp_path + "/alua_access_state", d["alua_access_state"])
if "alua_access_status" in d:
tcm_write(alua_gp_path + "/alua_access_status", d["alua_access_status"])
# Now allow changes to ALUA target port group update the struct file metadata
# in /var/target/alua/tpgs_$T10_UNIT_SERIAL/$TG_PT_GP_NAME
tcm_write(alua_gp_path + "/alua_write_metadata", "1")
def tcm_add_alua_tgptgp_with_md(dev_path, gp_name, gp_id):
alua_gp_path = tcm_full_path(dev_path) + "/alua/" + gp_name
tcm_check_dev_exists(dev_path)
# If the default_tg_pt_gp is passed, we skip the creation (as it already exists)
# and just process ALUA metadata
if gp_name == 'default_tg_pt_gp' and gp_id == '0':
tcm_alua_process_metadata(dev_path, gp_name, gp_id)
return
os.makedirs(alua_gp_path)
try:
tcm_write(alua_gp_path + "/tg_pt_gp_id", gp_id)
except:
os.rmdir(alua_gp_path)
raise
# Now process the ALUA metadata for this group
tcm_alua_process_metadata(dev_path, gp_name, gp_id)
def tcm_delhba(hba_name):
hba_path = tcm_full_path(hba_name)
for g in os.listdir(hba_path):
if g == "hba_info" or g == "hba_mode":
continue
__tcm_freevirtdev(hba_name + "/" + g)
os.rmdir(hba_path)
def tcm_del_alua_lugp(lu_gp_name):
if not os.path.isdir(tcm_root + "/alua/lu_gps/" + lu_gp_name):
tcm_err("ALUA Logical Unit Group: " + lu_gp_name + " does not exist!")
os.rmdir(tcm_root + "/alua/lu_gps/" + lu_gp_name)
def __tcm_del_alua_tgptgp(dev_path, gp_name):
tcm_check_dev_exists(dev_path)
full_path = tcm_full_path(dev_path)
if not os.path.isdir(full_path + "/alua/" + gp_name):
tcm_err("ALUA Target Port Group: " + gp_name + " does not exist!")
os.rmdir(full_path + "/alua/" + gp_name)
# deletes configfs entry for alua *and* metadata dir.
def tcm_del_alua_tgptgp(dev_path, gp_name):
tcm_check_dev_exists(dev_path)
alua_md_path = "/var/target/alua/tpgs_" + tcm_get_unit_serial(dev_path) \
+ "/" + gp_name
__tcm_del_alua_tgptgp(dev_path, gp_name)
if not os.path.isfile(alua_md_path):
return
shutil.rmtree(alua_md_path)
def tcm_generate_uuid_for_unit_serial(dev_path):
# Generate random uuid
tcm_set_wwn_unit_serial(dev_path, str(uuid.uuid4()))
tcm_types = ( \
dict(name="pscsi", module=tcm_pscsi, gen_uuid=False),
dict(name="stgt", module=None, gen_uuid=True),
dict(name="iblock", module=tcm_iblock, gen_uuid=True),
dict(name="rd_dr", module=tcm_ramdisk, gen_uuid=True),
dict(name="rd_mcp", module=tcm_ramdisk, gen_uuid=True),
dict(name="fileio", module=tcm_fileio, gen_uuid=True),
)
def tcm_createvirtdev(dev_path, plugin_params, establishdev=False):
hba_path = dev_path.split('/')[0]
# create hba if it doesn't exist
hba_full_path = tcm_full_path(hba_path)
if not os.path.isdir(hba_full_path):
os.mkdir(hba_full_path)
# create dev if it doesn't exist
full_path = tcm_full_path(dev_path)
if os.path.isdir(full_path):
tcm_err("TCM/ConfigFS storage object already exists: " + full_path)
else:
os.mkdir(full_path)
# Determine if --establishdev is being called and we want to skip
# the T10 Unit Serial Number generation
gen_uuid = True
if establishdev:
gen_uuid = False
# Calls into submodules depending on target_core_mod subsystem plugin
for tcm in tcm_types:
if hba_path.startswith(tcm["name"] + "_"):
try:
if tcm["module"]:
# modules expect plugin_params to be a list, for now.
tcm["module"].createvirtdev(dev_path, [plugin_params])
else:
tcm_err("no module for %s" % tcm["name"])
except:
os.rmdir(full_path)
print "Unable to register TCM/ConfigFS storage object: " \
+ full_path
raise
print tcm_read(full_path + "/info")
if tcm["gen_uuid"] and gen_uuid:
tcm_generate_uuid_for_unit_serial(dev_path)
tcm_alua_check_metadata_dir(dev_path)
break
def tcm_get_unit_serial(dev_path):
string = tcm_read(tcm_full_path(dev_path) + "/wwn/vpd_unit_serial")
return string.split(":")[1].strip()
def tcm_show_aptpl_metadata(dev_path):
tcm_check_dev_exists(dev_path)
aptpl_file = "/var/target/pr/aptpl_" + tcm_get_unit_serial(dev_path)
if not os.path.isfile(aptpl_file):
tcm_err("Unable to dump PR APTPL metadata file: " + aptpl_file)
print tcm_read(aptpl_file)
def tcm_delete_aptpl_metadata(unit_serial):
aptpl_file = "/var/target/pr/aptpl_" + unit_serial
if not os.path.isfile(aptpl_file):
return
shutil.rmtree(aptpl_file)
def tcm_process_aptpl_metadata(dev_path):
tcm_check_dev_exists(dev_path)
full_path = tcm_full_path(dev_path)
aptpl_file = "/var/target/pr/aptpl_" + tcm_get_unit_serial(dev_path)
if not os.path.isfile(aptpl_file):
return
# read PR info from file
lines = tcm_read(aptpl_file).split()
if not lines[0].startswith("PR_REG_START:"):
return
reservations = []
for line in lines:
if line.startswith("PR_REG_START:"):
res_list = []
elif line.startswith("PR_REG_END:"):
reservations.append(res_list)
else:
res_list.append(line.strip())
# write info into configfs
for res in reservations:
tcm_write(full_path + "/pr/res_aptpl_metadata", ",".join(res))
def tcm_establishvirtdev(dev_path, plugin_params):
tcm_createvirtdev(dev_path, plugin_params, True)
def tcm_create_pscsi(dev_path, ctl):
# convert passed 3-tuple to format pscsi expects
# "1:3:5" -> "scsi_channel_id=1,scsi_target_id=3..."
#
param_names = ("scsi_channel_id", "scsi_target_id", "scsi_lun_id")
pscsi_params = zip(param_names, ctl.split(":"))
pscsi_params_str = ",".join([x + "=" + y for x, y in pscsi_params])
tcm_createvirtdev(dev_path, pscsi_params_str)
def tcm_create_pscsibyudev(dev_path, udev_path):
tcm_createvirtdev(cfs_dev, udev_path)
def tcm_create_iblock(dev_path, udev_path):
tcm_createvirtdev(dev_path, udev_path)
def tcm_create_fileio(dev_path, filename, size):
fileio_params = "fd_dev_name=" + filename + ",fd_dev_size=" + size
tcm_createvirtdev(dev_path, fileio_params)
def tcm_create_ramdisk(dev_path, pages):
tcm_createvirtdev(dev_path, pages)
def __tcm_freevirtdev(dev_path):
tcm_check_dev_exists(dev_path)
full_path = tcm_full_path(dev_path)
for tg_pt_gp in os.listdir(full_path + "/alua/"):
if tg_pt_gp == "default_tg_pt_gp":
continue
__tcm_del_alua_tgptgp(dev_path, tg_pt_gp)
os.rmdir(full_path)
def tcm_freevirtdev(dev_path):
tcm_check_dev_exists(dev_path)
unit_serial = tcm_get_unit_serial(dev_path)
__tcm_freevirtdev(dev_path)
# For explict tcm_node --freedev, delete any remaining
# PR APTPL and ALUA metadata
tcm_delete_aptpl_metadata(unit_serial)
tcm_alua_delete_metadata_dir(unit_serial)
def tcm_list_dev_attribs(dev_path):
tcm_check_dev_exists(dev_path)
full_path = tcm_full_path(dev_path)
print "TCM Storage Object Attributes for " + full_path
for attrib in os.listdir(full_path + "/attrib/"):
print " %s: %s" % \
(attrib, tcm_read(full_path + "/attrib/" + attrib).strip())
def tcm_list_hbas():
for hba in os.listdir(tcm_root):
if hba == "alua":
continue
print "\------> " + hba
dev_root = tcm_root + "/" + hba
print "\t" + tcm_read(dev_root+"/hba_info").strip()
for dev in os.listdir(dev_root):
if dev in ("hba_info", "hba_mode"):
continue
try:
value = tcm_read(dev_root + "/" + dev + "/info")
except IOError, msg:
print " \-------> " + dev
print " No TCM object association active, skipping"
continue
udev_path = tcm_read(dev_root + "/" + dev + "/udev_path")
if udev_path:
udev_str = "udev_path: " + udev_path.rstrip()
else:
udev_str = "udev_path: N/A"
print " \-------> " + dev
print " " + value.rstrip()
print " " + udev_str
def tcm_list_alua_lugps():
for lu_gp in os.listdir(tcm_root + "/alua/lu_gps"):
group_path = tcm_root + "/alua/lu_gps/" + lu_gp
lu_gp_id = tcm_read(group_path + "/lu_gp_id").strip()
print "\------> " + lu_gp + " LUN Group ID: " + lu_gp_id
lu_gp_members = tcm_read(group_path + "/members").strip().split()
if not lu_gp_members:
print " No Logical Unit Group Members"
continue
for member in lu_gp_members:
print " " + member
def tcm_dump_alua_state(alua_state_no):
if alua_state_no == "0":
return "Active/Optimized"
elif alua_state_no == "1":
return "Active/NonOptimized"
elif alua_state_no == "2":
return "Standby"
elif alua_state_no == "3":
return "Unavailable"
elif alua_state_no == "15":
return "Transition"
else:
return "Unknown"
def tcm_list_alua_tgptgp(dev_path, gp_name):
tcm_check_dev_exists(dev_path)
gp_path = tcm_full_path(dev_path) + "/alua/" + gp_name
gp_id = tcm_read(gp_path + "/tg_pt_gp_id").strip()
print "\------> " + tg_pt_gp + " Target Port Group ID: " + tg_pt_gp_id
alua_type = tcm_read(gp_path + "/alua_access_type").strip()
print " Active ALUA Access Type(s): " + alua_type
alua_state = tcm_read(gp_path + "/alua_access_state").strip()
print " Primary Access State: " + tcm_dump_alua_state(alua_state)
try:
access_status = tcm_read(gp_path + "/alua_access_status").strip()
print " Primary Access Status: " + access_status
except IOError:
pass
preferred = tcm_read(gp_path + "/preferred").strip()
print " Preferred Bit: " + preferred
nonop_delay = tcm_read(gp_path + "/nonop_delay_msecs").strip()
print " Active/NonOptimized Delay in milliseconds: " + nonop_delay
trans_delay = tcm_read(gp_path + "/trans_delay_msecs").strip()
print " Transition Delay in milliseconds: " + trans_delay
gp_members = tcm_read(gp_path + "/members").strip().split()
print " \------> TG Port Group Members"
if not gp_members:
print " No Target Port Group Members"
else:
for member in gp_members:
print " " + member
def tcm_list_alua_tgptgps(dev_path):
tcm_check_dev_exists(dev_path)
for tg_pt_gp in os.listdir(tcm_full_path(dev_path) + "/alua/"):
tcm_list_alua_tgptgp(dev_path, tg_pt_gp)
def tcm_show_persistent_reserve_info(dev_path):
tcm_check_dev_exists(dev_path)
full_path = tcm_full_path(dev_path)
for f in os.listdir(full_path + "/pr/"):
info = tcm_read(full_path + "/pr/" + f).strip()
if info:
print info
def tcm_set_alua_state(dev_path, gp_name, access_state):
tcm_check_dev_exists(dev_path)
new_alua_state_str = str(access_state).lower()
if new_alua_state_str == "o":
alua_state = 0 # Active/Optimized
elif new_alua_state_str == "a":
alua_state = 1 # Active/NonOptimized
elif new_alua_state_str == "s":
alua_state = 2 # Standby
elif new_alua_state_str == "u":
alua_state = 3 # Unavailable
else:
tcm_err("Unknown ALUA access state: " + new_alua_state_str)
alua_path = tcm_full_path(dev_path) + "/alua/" + gp_name + "/alua_access_state"
tcm_write(alua_path, str(alua_state))
def tcm_set_alua_type(dev_path, gp_name, access_type):
tcm_check_dev_exists(dev_path)
new_alua_type_str = str(access_type).lower()
if new_alua_type_str == "both":
alua_type = 3
elif new_alua_type_str == "explict":
alua_type = 2
elif new_alua_type_str == "implict":
alua_type = 1
elif new_alua_type_str == "none":
alua_type = 0
else:
tcm_err("Unknown ALUA access type: " + new_alua_type_str)
alua_path = tcm_full_path(dev_path) + "/alua/" + gp_name + "/alua_access_type"
tcm_write(alua_path, str(alua_type))
def tcm_set_alua_nonop_delay(dev_path, gp_name, msec_delay):
tcm_check_dev_exists(dev_path)
if not os.path.isdir(tcm_full_path(dev_path) + "/alua/" + gp_name):
tcm_err("Unable to locate TG Pt Group: " + gp_name)
alua_path = tcm_full_path(dev_path) + "/alua/" + gp_name + "/nonop_delay_msecs"
tcm_write(alua_path, str(msec_delay))
def tcm_set_alua_trans_delay(dev_path, gp_name, msec_delay):
tcm_check_dev_exists(dev_path)
if not os.path.isdir(tcm_full_path(dev_path) + "/alua/" + gp_name):
tcm_err("Unable to locate TG Pt Group: " + gp_name)
alua_path = tcm_full_path(dev_path) + "/alua/" + gp_name + "/trans_delay_msecs"
tcm_write(alua_path, str(msec_delay))
def tcm_clear_alua_tgpt_pref(dev_path, gp_name):
tcm_check_dev_exists(dev_path)
if not os.path.isdir(tcm_full_path(dev_path) + "/alua/" + gp_name):
tcm_err("Unable to locate TG Pt Group: " + gp_name)
alua_path = tcm_full_path(dev_path) + "/alua/" + gp_name + "/preferred"
tcm_write(alua_path, "0")
def tcm_set_alua_tgpt_pref(dev_path, gp_name):
tcm_check_dev_exists(dev_path)
if not os.path.isdir(tcm_full_path(dev_path) + "/alua/" + gp_name):
tcm_err("Unable to locate TG Pt Group: " + gp_name)
alua_path = tcm_full_path(dev_path) + "/alua/" + gp_name + "/preferred"
tcm_write(alua_path, "1")
def tcm_set_alua_lugp(dev_path, gp_name):
tcm_check_dev_exists(dev_path)
if not os.path.isdir(tcm_full_path(dev_path) + "/alua/lu_gps/" + gp_name):
tcm_err("Unable to locate ALUA Logical Unit Group: " + gp_name)
alua_path = tcm_full_path(dev_path) + "/alua/lu_gps/" + gp_name + "/alua_lu_gp"
tcm_write(alua_path, gp_name)
def tcm_set_dev_attrib(dev_path, attrib, value):
tcm_check_dev_exists(dev_path)
tcm_write(tcm_full_path(dev_path) + "/attrib/" + attrib, value)
def tcm_set_udev_path(dev_path, udev_path):
tcm_check_dev_exists(dev_path)
tcm_write(tcm_full_path(dev_path) + "/udev_path", udev_path, newline=False)
def tcm_set_wwn_unit_serial(dev_path, unit_serial):
tcm_check_dev_exists(dev_path)
tcm_write(tcm_full_path(dev_path) + "/wwn/vpd_unit_serial", unit_serial)
def tcm_set_wwn_unit_serial_with_md(dev_path, unit_serial):
tcm_check_dev_exists(dev_path)
tcm_set_wwn_unit_serial(dev_path, unit_serial)
# Process PR APTPL metadata
tcm_process_aptpl_metadata(dev_path)
# Make sure the ALUA metadata directory exists for this storage object
tcm_alua_check_metadata_dir(dev_path)
def tcm_show_udev_path(dev_path):
tcm_check_dev_exists(dev_path)
print tcm_read(tcm_full_path(dev_path) + "/udev_path")
def tcm_show_wwn_info(dev_path):
tcm_check_dev_exists(dev_path)
full_path = tcm_full_path(dev_path) + "/wwn/"
for f in os.listdir(full_path):
info = tcm_read(full_path + f).strip()
if info:
print info
def tcm_unload():
if not os.path.isdir(tcm_root):
tcm_err("Unable to access tcm_root: " + tcm_root)
hba_root = os.listdir(tcm_root)
for f in hba_root:
if f == "alua":
continue
tcm_delhba(f)
for lu_gp in os.listdir(tcm_root + "/alua/lu_gps"):
if lu_gp == "default_lu_gp":
continue
tcm_del_alua_lugp(lu_gp)
# Unload TCM subsystem plugin modules
for module in ("iblock", "file", "pscsi", "stgt"):
os.system("rmmod target_core_%s" % module)
# Unload TCM Core
rmmod_op = "rmmod target_core_mod"
ret = os.system(rmmod_op)
if ret:
tcm_err("Unable to rmmod target_core_mod")
def tcm_version():
return tcm_read("/sys/kernel/config/target/version").strip()
cmdline_options = ( \
dict(opt_str="--addlungp", callback=tcm_add_alua_lugp, nargs=1,
dest="lu_gp_name", help="Add ALUA Logical Unit Group"),
dict(opt_str=("--addtgptgp","--addaluatpg"),
callback=tcm_add_alua_tgptgp, nargs=2,
dest="HBA/DEV <TG_PT_GP_NAME>",
help="Add ALUA Target Port Group to Storage Object"),
dict(opt_str=("--addtgptgpwithmd","--addaluatpgwithmd"), action="callback",
callback=tcm_add_alua_tgptgp_with_md, nargs=3,
dest="HBA/DEV <TG_PT_GP_NAME> <TG_PT_GP_ID>",
help="Add ALUA Target Port Group to Storage Object with ID and process ALUA metadata"),
dict(opt_str=("--block","--iblock"), callback=tcm_create_iblock, nargs=2,
dest="HBA/DEV <UDEV_PATH>",
help="Associate TCM/IBLOCK object with Linux/BLOCK device"),
dict(opt_str="--clearaluapref", callback=tcm_clear_alua_tgpt_pref,
nargs=2, dest="HBA/DEV <TG_PT_GP_NAME>",
help="Clear ALUA Target Port Group Preferred Bit"),
dict(opt_str="--delhba", callback=tcm_delhba, nargs=1,
dest="HBA", help="Delete TCM Host Bus Adapter (HBA)"),
dict(opt_str="--dellungp", callback=tcm_del_alua_lugp, nargs=1,
dest="lu_gp_name", help="Delete ALUA Logical Unit Group"),
dict(opt_str=("--deltgptgp","--delaluatpg"), callback=tcm_del_alua_tgptgp, nargs=2,
dest="HBA/DEV TG_PT_GP_NAME",
help="Delete ALUA Target Port Group from Storage Object"),
dict(opt_str="--createdev", callback=tcm_createvirtdev, nargs=2,
dest="HBA/DEV <SUBSYSTEM_PARAMS>",
help="Create TCM Storage Object using subsystem dependent parameters,"
" and generate new T10 Unit Serial for IBLOCK,FILEIO,RAMDISK"),
dict(opt_str="--establishdev", callback=tcm_establishvirtdev, nargs=2,
dest="HBA/DEV <SUBSYSTEM_PARAMS>",
help="Create TCM Storage Object using subsystem dependent parameters, do"
"not generate new T10 Unit Serial"),
dict(opt_str="--fileio", callback=tcm_create_fileio, nargs=3,
dest="HBA/DEV <FILE> <SIZE_IN_BYTES>",
help="Associate TCM/FILEIO object with Linux/VFS file or underlying"
" device for buffered FILEIO"),
dict(opt_str="--freedev", callback=tcm_freevirtdev, nargs=1,
dest="HBA/DEV", help="Free TCM Storage Object"),
dict(opt_str="--listdevattr", callback=tcm_list_dev_attribs, nargs=1,
dest="HBA/DEV", help="List TCM storage object device attributes"),
dict(opt_str="--listhbas", callback=tcm_list_hbas, nargs=0,
help="List TCM Host Bus Adapters (HBAs)"),
dict(opt_str="--listlugps", callback=tcm_list_alua_lugps, nargs=0,
help="List ALUA Logical Unit Groups"),
dict(opt_str=("--listtgptgp","--listaluatpg"), callback=tcm_list_alua_tgptgp, nargs=2,
dest="HBA/DEV <TG_PT_GP_NAME>",
help="List specific ALUA Target Port Group for Storage Object"),
dict(opt_str=("--listtgptgps","--listaluatpgs"), callback=tcm_list_alua_tgptgps, nargs=1,
dest="HBA/DEV", help="List all ALUA Target Port Groups for Storage Object"),
dict(opt_str="--pr", callback=tcm_show_persistent_reserve_info, nargs=1,
dest="HBA/DEV", help="Show Persistent Reservation info"),
dict(opt_str="--praptpl", callback=tcm_process_aptpl_metadata, nargs=1,
dest="HBA/DEV", help="Process PR APTPL metadata from file"),
dict(opt_str="--prshowmd", callback=tcm_show_aptpl_metadata, nargs=1,
dest="HBA/DEV", help="Show APTPL metadata file"),
dict(opt_str="--ramdisk", callback=tcm_create_ramdisk, nargs=2,
dest="HBA/DEV <PAGES>", help="Create and associate TCM/RAMDISK object"),
dict(opt_str=("--scsi","--pscsi"), callback=tcm_create_pscsi, nargs=2,
dest="HBA/DEV <C:T:L>",
help="Associate TCM/pSCSI object with Linux/SCSI device by bus location"),
dict(opt_str=("--scsibyudev", "--pscsibyudev"), callback=tcm_create_pscsibyudev, nargs=2,
dest="HBA/DEV <UDEV_PATH>",
help="Associate TCM/pSCSI object with Linux/SCSI device by UDEV Path"),
dict(opt_str="--setaluadelay", callback=tcm_set_alua_nonop_delay, nargs=3,
dest="HBA/DEV <TG_PT_GP_NAME> <NON_OP_DELAY_IN_MSECS>",
help="Set ALUA Target Port Group delay for Active/NonOptimized in milliseconds"),
dict(opt_str="--setaluapref", callback=tcm_set_alua_tgpt_pref, nargs=2,
dest="HBA/DEV <TG_PT_GP_NAME>", help="Set ALUA Target Port Group Preferred Bit"),
dict(opt_str="--setaluastate", callback=tcm_set_alua_state, nargs=3,
dest="HBA/DEV <TG_PT_GP_NAME> <ALUA_ACCESS_STATE>",
help="Set ALUA access state for TG_PT_GP_NAME on Storage Object. The value access"
" states are \"o\" = active/optimized, \"a\" = active/nonoptimized, \"s\" = standby,"
" \"u\" = unavailable"),
dict(opt_str="--setaluatransdelay", callback=tcm_set_alua_trans_delay, nargs=3,
dest="HBA/DEV <TG_PT_GP_NAME> <TRANS_DELAY_IN_MSECS>",
help="Set ALUA Target Port Group Transition delay"),
dict(opt_str="--setaluatype", callback=tcm_set_alua_type, nargs=3,
dest="HBA/DEV <TG_PT_GP_NAME> <ALUA_ACCESS_TYPE>",
help="Set ALUA access type for TG_PT_GP_NAME on Storage Object. The value type"
" states are \"both\" = implict/explict, \"explict\", \"implict\", or \"none\""),
dict(opt_str="--setdevattr", callback=tcm_set_dev_attrib, nargs=3,
dest="HBA/DEV <ATTRIB> <VALUE>",
help="Set new value for TCM storage object device attribute"),
dict(opt_str="--setlugp", callback=tcm_set_alua_lugp, nargs=2,
dest="HBA/DEV LU_GP_NAME", help="Set ALUA Logical Unit Group"),
dict(opt_str="--setudevpath", callback=tcm_set_udev_path, nargs=2,
dest="HBA/DEV <udev_path>",
help="Set UDEV Path Information, only used when --createdev did not contain"
" <udev_path> as parameter"),
dict(opt_str="--setunitserial", callback=tcm_set_wwn_unit_serial, nargs=2,
dest="HBA/DEV <unit_serial>", help="Set T10 EVPD Unit Serial Information"),
dict(opt_str="--setunitserialwithmd", callback=tcm_set_wwn_unit_serial_with_md, nargs=2,
dest="HBA/DEV <unit_serial>",
help="Set T10 EVPD Unit Serial Information and process PR APTPL metadata"),
dict(opt_str="--udevpath", callback=tcm_show_udev_path, nargs=1,
dest="HBA/DEV", help="Show UDEV Path Information for TCM storage object"),
dict(opt_str="--unload", callback=tcm_unload, nargs=0,
help="Unload target_core_mod"),
dict(opt_str="--wwn", callback=tcm_show_wwn_info, nargs=1,
dest="HBA/DEV", help="Show WWN info"),
)
def dispatcher(option, opt_str, value, parser, orig_callback):
if option.nargs == 1:
value = (value,)
value = [str(x).strip() for x in value]
orig_callback(*value)
def main():
parser = OptionParser(version=tcm_version())
for opt in cmdline_options:
# cmd_aliases can be string or tuple of strings.
# we're unpacking below, so convert strings to 1 item tuples
cmd_aliases = opt["opt_str"]
if isinstance(cmd_aliases, basestring):
cmd_aliases = (cmd_aliases,)
del opt["opt_str"]
# common params for all options
opt["action"] = "callback"
opt["type"] = "string"
opt["callback_kwargs"] = dict(orig_callback=opt["callback"])
opt["callback"] = dispatcher
parser.add_option(*cmd_aliases, **opt)
(options, args) = parser.parse_args()
if len(sys.argv) == 1:
parser.print_help()
sys.exit(0)
elif not re.search('--', sys.argv[1]):
tcm_err("Unknown CLI option: " + sys.argv[1])
if __name__ == "__main__":
main()
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