From 0ceb0c7b9730314cb8dfff7d2af9ef811a96aa13 Mon Sep 17 00:00:00 2001

From: "Endi S. Dewata" <edewata@redhat.com>

Date: Thu, 27 Aug 2015 06:44:29 +0200

Subject: [PATCH] Using LDAPI to setup CA and KRA agents.

The CA and KRA installation code has been modified to use LDAPI

to create the CA and KRA agents directly in the CA and KRA

database. This way it's no longer necessary to use the Directory

Manager password or CA and KRA admin certificate.

https://fedorahosted.org/freeipa/ticket/5257

Reviewed-By: Martin Basti <mbasti@redhat.com>

---

 ipaplatform/base/paths.py        |   2 -

 ipaserver/install/cainstance.py  |  49 ++++++++++-------

 ipaserver/install/krainstance.py | 113 +++++++++++++++------------------------

 3 files changed, 72 insertions(+), 92 deletions(-)

diff --git a/ipaplatform/base/paths.py b/ipaplatform/base/paths.py

index a407c1273f01b3465bcb1985dd41f2f242346a62..ff75e0d7a5a0250ce71e67b0302bbaab64c5e935 100644

--- a/ipaplatform/base/paths.py

+++ b/ipaplatform/base/paths.py

@@ -344,8 +344,6 @@ class BasePathNamespace(object):

     SLAPD_INSTANCE_SOCKET_TEMPLATE = "/var/run/slapd-%s.socket"

     ALL_SLAPD_INSTANCE_SOCKETS = "/var/run/slapd-*.socket"

     ADMIN_CERT_PATH = '/root/.dogtag/pki-tomcat/ca_admin.cert'

-    KRA_NSSDB_PASSWORD_FILE = "/root/.dogtag/pki-tomcat/kra/password.conf"

-    KRA_PKCS12_PASSWORD_FILE = "/root/.dogtag/pki-tomcat/kra/pkcs12_password.conf"

     ENTROPY_AVAIL = '/proc/sys/kernel/random/entropy_avail'

     LDIF2DB = '/usr/sbin/ldif2db'

     DB2LDIF = '/usr/sbin/db2ldif'

diff --git a/ipaserver/install/cainstance.py b/ipaserver/install/cainstance.py

index ecd9300036353426097d929918be974cbbb5c69d..a4504a35a42b8c8ea2a96738c82c546ebebf569f 100644

--- a/ipaserver/install/cainstance.py

+++ b/ipaserver/install/cainstance.py

@@ -464,7 +464,7 @@ class CAInstance(DogtagInstance):

                 self.step("restarting certificate server", self.restart_instance)

                 self.step("requesting RA certificate from CA", self.__request_ra_certificate)

                 self.step("issuing RA agent certificate", self.__issue_ra_cert)

-                self.step("adding RA agent as a trusted user", self.__configure_ra)

+                self.step("adding RA agent as a trusted user", self.__create_ca_agent)

                 self.step("authorizing RA to modify profiles", self.__configure_profiles_acl)

             self.step("configure certmonger for renewals", self.configure_certmonger_renewal)

             self.step("configure certificate renewals", self.configure_renewal)

@@ -903,18 +903,26 @@ class CAInstance(DogtagInstance):

         self.configure_agent_renewal()

-    def __configure_ra(self):

-        # Create an RA user in the CA LDAP server and add that user to

-        # the appropriate groups so it can issue certificates without

-        # manual intervention.

-        conn = ipaldap.IPAdmin(self.fqdn, self.ds_port)

-        conn.do_simple_bind(DN(('cn', 'Directory Manager')), self.dm_password)

+    def __create_ca_agent(self):

+        """

+        Create CA agent, assign a certificate, and add the user to

+        the appropriate groups for accessing CA services.

+        """

-        decoded = base64.b64decode(self.ra_cert)

+        # get ipaCert certificate

+        cert_data = base64.b64decode(self.ra_cert)

+        cert = x509.load_certificate(cert_data, x509.DER)

-        entry_dn = DN(('uid', "ipara"), ('ou', 'People'), self.basedn)

+        # connect to CA database

+        server_id = installutils.realm_to_serverid(api.env.realm)

+        dogtag_uri = 'ldapi://%%2fvar%%2frun%%2fslapd-%s.socket' % server_id

+        conn = ldap2.ldap2(api, ldap_uri=dogtag_uri)

+        conn.connect(autobind=True)

+

+        # create ipara user with ipaCert certificate

+        user_dn = DN(('uid', "ipara"), ('ou', 'People'), self.basedn)

         entry = conn.make_entry(

-            entry_dn,

+            user_dn,

             objectClass=['top', 'person', 'organizationalPerson',

                          'inetOrgPerson', 'cmsuser'],

             uid=["ipara"],

@@ -922,23 +930,24 @@ class CAInstance(DogtagInstance):

             cn=["ipara"],

             usertype=["agentType"],

             userstate=["1"],

-            userCertificate=[decoded],

+            userCertificate=[cert_data],

             description=['2;%s;%s;%s' % (

-                str(self.requestId),

+                cert.serial_number,

                 DN(('CN', 'Certificate Authority'), self.subject_base),

                 DN(('CN', 'IPA RA'), self.subject_base))])

-

         conn.add_entry(entry)

-        dn = DN(('cn', 'Certificate Manager Agents'), ('ou', 'groups'), self.basedn)

-        modlist = [(0, 'uniqueMember', '%s' % entry_dn)]

-        conn.modify_s(dn, modlist)

+        # add ipara user to Certificate Manager Agents group

+        group_dn = DN(('cn', 'Certificate Manager Agents'), ('ou', 'groups'),

+            self.basedn)

+        conn.add_entry_to_group(user_dn, group_dn, 'uniqueMember')

-        dn = DN(('cn', 'Registration Manager Agents'), ('ou', 'groups'), self.basedn)

-        modlist = [(0, 'uniqueMember', '%s' % entry_dn)]

-        conn.modify_s(dn, modlist)

+        # add ipara user to Registration Manager Agents group

+        group_dn = DN(('cn', 'Registration Manager Agents'), ('ou', 'groups'),

+            self.basedn)

+        conn.add_entry_to_group(user_dn, group_dn, 'uniqueMember')

-        conn.unbind()

+        conn.disconnect()

     def __configure_profiles_acl(self):

         """Allow the Certificate Manager Agents group to modify profiles."""

diff --git a/ipaserver/install/krainstance.py b/ipaserver/install/krainstance.py

index e5cdbf5e7714603041e3f0156e87311994175b18..958fe6fb095e69f83342ce8299d1586b8bbacd47 100644

--- a/ipaserver/install/krainstance.py

+++ b/ipaserver/install/krainstance.py

@@ -25,17 +25,21 @@ import sys

 import tempfile

 from ipalib import api

+from ipalib import x509

 from ipaplatform import services

 from ipaplatform.paths import paths

+from ipapython import certdb

 from ipapython import dogtag

 from ipapython import ipautil

 from ipapython.dn import DN

 from ipaserver.install import certs

 from ipaserver.install import cainstance

+from ipaserver.install import installutils

 from ipaserver.install import ldapupdate

 from ipaserver.install import service

 from ipaserver.install.dogtaginstance import DogtagInstance

 from ipaserver.install.dogtaginstance import DEFAULT_DSPORT, PKI_USER

+from ipaserver.plugins import ldap2

 from ipapython.ipa_log_manager import log_mgr

 # When IPA is installed with DNS support, this CNAME should hold all IPA

@@ -111,8 +115,8 @@ class KRAInstance(DogtagInstance):

         self.step("configuring KRA instance", self.__spawn_instance)

         if not self.clone:

-            self.step("add RA user to KRA agent group",

-                      self.__add_ra_user_to_agent_group)

+            self.step("create KRA agent",

+                      self.__create_kra_agent)

         self.step("restarting KRA", self.restart_instance)

         self.step("configure certmonger for renewals",

                   self.configure_certmonger_renewal)

@@ -267,77 +271,46 @@ class KRAInstance(DogtagInstance):

         self.log.debug("completed creating KRA instance")

-    def __add_ra_user_to_agent_group(self):

+    def __create_kra_agent(self):

         """

-        Add RA agent created for CA to KRA agent group.

+        Create KRA agent, assign a certificate, and add the user to

+        the appropriate groups for accessing KRA services.

         """

-        # import CA certificate into temporary security database

-        args = ["/usr/bin/pki",

-            "-d", self.agent_db,

-            "-C", paths.KRA_NSSDB_PASSWORD_FILE,

-            "client-cert-import",

-            "--pkcs12", paths.KRACERT_P12,

-            "--pkcs12-password-file", paths.KRA_PKCS12_PASSWORD_FILE]

-        ipautil.run(args)

-

-        # trust CA certificate

-        args = ["/usr/bin/pki",

-            "-d", self.agent_db,

-            "-C", paths.KRA_NSSDB_PASSWORD_FILE,

-            "client-cert-mod", "Certificate Authority - %s" % api.env.realm,

-            "--trust", "CT,c,"]

-        ipautil.run(args)

-

-        # import Dogtag admin certificate into temporary security database

-        args = ["/usr/bin/pki",

-            "-d", self.agent_db,

-            "-C", paths.KRA_NSSDB_PASSWORD_FILE,

-            "client-cert-import",

-            "--pkcs12", paths.DOGTAG_ADMIN_P12,

-            "--pkcs12-password-file", paths.KRA_PKCS12_PASSWORD_FILE]

-        ipautil.run(args)

-

-        # as Dogtag admin, create ipakra user in KRA

-        args = ["/usr/bin/pki",

-            "-d", self.agent_db,

-            "-C", paths.KRA_NSSDB_PASSWORD_FILE,

-            "-n", "ipa-ca-agent",

-            "kra-user-add", "ipakra",

-            "--fullName", "IPA KRA User"]

-        ipautil.run(args)

-

-        # as Dogtag admin, add ipakra into KRA agents group

-        args = ["/usr/bin/pki",

-            "-d", self.agent_db,

-            "-C", paths.KRA_NSSDB_PASSWORD_FILE,

-            "-n", "ipa-ca-agent",

-            "kra-user-membership-add", "ipakra", "Data Recovery Manager Agents"]

-        ipautil.run(args)

-

-        # assign ipaCert to ipakra

-        (file, filename) = tempfile.mkstemp()

-        os.close(file)

-        try:

-            # export ipaCert without private key

-            args = ["/usr/bin/pki",

-                "-d", paths.HTTPD_ALIAS_DIR,

-                "-C", paths.ALIAS_PWDFILE_TXT,

-                "client-cert-show", "ipaCert",

-                "--cert", filename]

-            ipautil.run(args)

-

-            # as Dogtag admin, upload and assign ipaCert to ipakra

-            args = ["/usr/bin/pki",

-                "-d", self.agent_db,

-                "-C", paths.KRA_NSSDB_PASSWORD_FILE,

-                "-n", "ipa-ca-agent",

-                "kra-user-cert-add", "ipakra",

-                "--input", filename]

-            ipautil.run(args)

-

-        finally:

-            os.remove(filename)

+        # get ipaCert certificate

+        with certdb.NSSDatabase(paths.HTTPD_ALIAS_DIR) as ipa_nssdb:

+           cert_data = ipa_nssdb.get_cert("ipaCert")

+        cert = x509.load_certificate(cert_data, x509.DER)

+

+        # connect to KRA database

+        server_id = installutils.realm_to_serverid(api.env.realm)

+        dogtag_uri = 'ldapi://%%2fvar%%2frun%%2fslapd-%s.socket' % server_id

+        conn = ldap2.ldap2(api, ldap_uri=dogtag_uri)

+        conn.connect(autobind=True)

+

+        # create ipakra user with ipaCert certificate

+        user_dn = DN(('uid', "ipakra"), ('ou', 'people'), self.basedn)

+        entry = conn.make_entry(

+            user_dn,

+            objectClass=['top', 'person', 'organizationalPerson',

+                         'inetOrgPerson', 'cmsuser'],

+            uid=["ipakra"],

+            sn=["IPA KRA User"],

+            cn=["IPA KRA User"],

+            usertype=["undefined"],

+            userCertificate=[cert_data],

+            description=['2;%s;%s;%s' % (

+                cert.serial_number,

+                DN(('CN', 'Certificate Authority'), self.subject_base),

+                DN(('CN', 'IPA RA'), self.subject_base))])

+        conn.add_entry(entry)

+

+        # add ipakra user to Data Recovery Manager Agents group

+        group_dn = DN(('cn', 'Data Recovery Manager Agents'), ('ou', 'groups'),

+                self.basedn)

+        conn.add_entry_to_group(user_dn, group_dn, 'uniqueMember')

+

+        conn.disconnect()

     def __add_vault_container(self):

         sub_dict = {

-- 

2.5.1