From 6b8cb35fe43669325212ffabf2f9c02c84a8a5aa Mon Sep 17 00:00:00 2001 From: Petr Vobornik Date: Thu, 9 Jan 2014 14:54:30 +0100 Subject: Support OTP in form based auth OTP requires to use kerberos FAST channel. Ccache with ticket obtained using ipa.keytab is used as an armor. https://fedorahosted.org/freeipa/ticket/3369 --- ipaserver/rpcserver.py | 38 ++++++++++++++++++++++++++++++++------ 1 file changed, 32 insertions(+), 6 deletions(-) diff --git a/ipaserver/rpcserver.py b/ipaserver/rpcserver.py index a58c85355..c05740ded 100644 --- a/ipaserver/rpcserver.py +++ b/ipaserver/rpcserver.py @@ -42,12 +42,14 @@ from ipalib.rpc import (xml_dumps, xml_loads, from ipalib.util import parse_time_duration, normalize_name from ipapython.dn import DN from ipaserver.plugins.ldap2 import ldap2 -from ipalib.session import (session_mgr, AuthManager, get_ipa_ccache_name, +from ipalib.session import ( + session_mgr, AuthManager, get_ipa_ccache_name, load_ccache_data, bind_ipa_ccache, release_ipa_ccache, fmt_time, - default_max_session_duration) + default_max_session_duration, krbccache_dir, krbccache_prefix) from ipalib.backend import Backend from ipalib.krb_utils import ( - KRB5_CCache, krb_ticket_expiration_threshold, krb5_format_principal_name) + KRB5_CCache, krb_ticket_expiration_threshold, krb5_format_principal_name, + krb5_format_service_principal_name) from ipapython import ipautil from ipapython.version import VERSION from ipalib.text import _ @@ -973,15 +975,39 @@ class login_password(Backend, KerberosSession, HTTP_Status): return self.finalize_kerberos_acquisition('login_password', ipa_ccache_name, environ, start_response) def kinit(self, user, realm, password, ccache_name): + # get http service ccache as an armor for FAST to enable OTP authentication + armor_principal = krb5_format_service_principal_name( + 'HTTP', self.api.env.host, realm) + keytab = '/etc/httpd/conf/ipa.keytab' + armor_name = "%sA_%s" % (krbccache_prefix, user) + armor_path = os.path.join(krbccache_dir, armor_name) + + self.debug('Obtaining armor ccache: principal=%s keytab=%s ccache=%s', + armor_principal, keytab, armor_path) + + (stdout, stderr, returncode) = ipautil.run( + ['/usr/bin/kinit', '-kt', keytab, armor_principal], + env={'KRB5CCNAME': armor_path}, raiseonerr=False) + + if returncode != 0: + raise CCacheError() + # Format the user as a kerberos principal principal = krb5_format_principal_name(user, realm) - (stdout, stderr, returncode) = ipautil.run(['/usr/bin/kinit', principal], - env={'KRB5CCNAME':ccache_name}, - stdin=password, raiseonerr=False) + (stdout, stderr, returncode) = ipautil.run( + ['/usr/bin/kinit', principal, '-T', armor_path], + env={'KRB5CCNAME': ccache_name}, stdin=password, raiseonerr=False) + self.debug('kinit: principal=%s returncode=%s, stderr="%s"', principal, returncode, stderr) + self.debug('Cleanup the armor ccache') + ipautil.run( + ['/usr/bin/kdestroy', '-A', '-c', armor_path], + env={'KRB5CCNAME': armor_path}, + raiseonerr=False) + if returncode != 0: raise InvalidSessionPassword(principal=principal, message=unicode(stderr)) -- cgit