mirror of
https://salsa.debian.org/freeipa-team/freeipa.git
synced 2024-12-25 08:21:05 -06:00
9677308caa
Server and client installer should allow kernel keyring ccache when supported. https://fedorahosted.org/freeipa/ticket/4013
120 lines
3.6 KiB
Python
120 lines
3.6 KiB
Python
# Authors: Rob Crittenden <rcritten@redhat.com>
|
|
#
|
|
# Copyright (C) 2012 Red Hat
|
|
# see file 'COPYING' for use and warranty information
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program 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 General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
|
|
import os
|
|
|
|
from ipapython.ipautil import run
|
|
|
|
# NOTE: Absolute path not required for keyctl since we reset the environment
|
|
# in ipautil.run.
|
|
|
|
# Use the session keyring so the same user can have a different principal
|
|
# in different shells. This was explicitly chosen over @us because then
|
|
# it is not possible to use KRB5CCNAME to have a different user principal.
|
|
# The same session would always be used and the first principal would
|
|
# always win.
|
|
KEYRING = '@s'
|
|
KEYTYPE = 'user'
|
|
|
|
def dump_keys():
|
|
"""
|
|
Dump all keys
|
|
"""
|
|
(stdout, stderr, rc) = run(['keyctl', 'list', KEYRING], raiseonerr=False)
|
|
return stdout
|
|
|
|
def get_real_key(key):
|
|
"""
|
|
One cannot request a key based on the description it was created with
|
|
so find the one we're looking for.
|
|
"""
|
|
(stdout, stderr, rc) = run(['keyctl', 'search', KEYRING, KEYTYPE, key], raiseonerr=False)
|
|
if rc:
|
|
raise ValueError('key %s not found' % key)
|
|
return stdout.rstrip()
|
|
|
|
def get_persistent_key(key):
|
|
(stdout, stderr, rc) = run(['keyctl', 'get_persistent', KEYRING, key], raiseonerr=False)
|
|
if rc:
|
|
raise ValueError('persistent key %s not found' % key)
|
|
return stdout.rstrip()
|
|
|
|
def is_persistent_keyring_supported():
|
|
uid = os.geteuid()
|
|
try:
|
|
get_persistent_key(str(uid))
|
|
except ValueError:
|
|
return False
|
|
|
|
return True
|
|
|
|
def has_key(key):
|
|
"""
|
|
Returns True/False whether the key exists in the keyring.
|
|
"""
|
|
try:
|
|
get_real_key(key)
|
|
return True
|
|
except ValueError:
|
|
return False
|
|
|
|
def read_key(key):
|
|
"""
|
|
Read the keyring and return the value for key.
|
|
|
|
Use pipe instead of print here to ensure we always get the raw data.
|
|
"""
|
|
real_key = get_real_key(key)
|
|
(stdout, stderr, rc) = run(['keyctl', 'pipe', real_key], raiseonerr=False)
|
|
if rc:
|
|
raise ValueError('keyctl pipe failed: %s' % stderr)
|
|
|
|
return stdout
|
|
|
|
def update_key(key, value):
|
|
"""
|
|
Update the keyring data. If they key doesn't exist it is created.
|
|
"""
|
|
if has_key(key):
|
|
real_key = get_real_key(key)
|
|
(stdout, stderr, rc) = run(['keyctl', 'pupdate', real_key], stdin=value, raiseonerr=False)
|
|
if rc:
|
|
raise ValueError('keyctl pupdate failed: %s' % stderr)
|
|
else:
|
|
add_key(key, value)
|
|
|
|
def add_key(key, value):
|
|
"""
|
|
Add a key to the kernel keyring.
|
|
"""
|
|
if has_key(key):
|
|
raise ValueError('key %s already exists' % key)
|
|
(stdout, stderr, rc) = run(['keyctl', 'padd', KEYTYPE, key, KEYRING], stdin=value, raiseonerr=False)
|
|
if rc:
|
|
raise ValueError('keyctl padd failed: %s' % stderr)
|
|
|
|
def del_key(key):
|
|
"""
|
|
Remove a key from the keyring
|
|
"""
|
|
real_key = get_real_key(key)
|
|
(stdout, stderr, rc) = run(['keyctl', 'unlink', real_key, KEYRING], raiseonerr=False)
|
|
if rc:
|
|
raise ValueError('keyctl unlink failed: %s' % stderr)
|