add IPA info tools

mangle/ipa/ipaaudit

@@ -0,0 +1,25 @@
+#!/bin/bash
+# Wrapper for ipaauditor.py audit
+
+case "$ID" in
+  rocky|centos|rhel)
+    case "${VERSION_ID:0:1}" in
+      5|6|7)
+        echo "Not supported."
+        exit 3
+        ;;
+      8)
+        PYTHON_EXEC="/usr/libexec/platform-python"
+        ;;
+      *)
+        PYTHON_EXEC="/usr/bin/python3"
+        ;;
+    esac ;;
+  ubuntu|debian)
+    PYTHON_EXEC="/usr/bin/python3"
+    ;;
+  fedora)
+    PYTHON_EXEC="/usr/bin/python3"
+esac
+
+$PYTHON_EXEC ipaauditor.py audit "$@"

mangle/ipa/ipaauditor.py

@@ -1,26 +1,519 @@
 #!/usr/bin/env python3
 # -*-:python; coding:utf-8; -*-
 # author: Louis Abel <label@rockylinux.org>
+# pylint: disable=missing-module-docstring
 #
-# This script acts as a auditor for a FreeIPA domain. By default, it will
+# This script acts as an auditor for a FreeIPA domain. It's primary uses are
-# communicate with an IPA server of a domain, login, and attempt to get all
+# for providing information of a client system and auditing policies, but can
-# information for HBAC and SUDO.
+# also be used as a simple query tool. When in audit mode, it will communicate
+# with the IPA domain and attempt to get information such as HBAC and SUDO.
+# Note that the auditor functionality may require an account with specialized
+# privileges.
 
+# Changelog:
+#   * Wed Nov 08 2023
+#   - Initial version
+
+import os
 import sys
+import configparser
+import socket
+import subprocess
+import argparse
 
-python_freeipa = True
+################################################################################
-ipalib = True
+# This is specifically for audit operations where the client system running the
-
+# audit is not a direct client of the IPA domain. This is either used as a
+# fallback if ipalib is not available or if called during "audit". This library
+# is installable from EPEL (for RHEL-like machines), or the default Fedora
+# repos.
 try:
     from python_freeipa import ClientMeta
 except ImportError:
-    python_freeipa = None
+    ClientMeta = None
 
+################################################################################
+# A system with the (free)ipa-client packages will have this library by
+# default. If the system is enrolled, this will work without much of an issue.
+# This is the default method of interacting with the API.
 try:
-    from ipalib import api
+    from ipalib import api as libapi
 except ImportError:
-    ipalib = None
+    libapi = None
 
-if not ipalib and not python_freeipa:
+if not libapi and not ClientMeta:
     print('No IPA python modules are available')
     sys.exit(1)
+
+################################################################################
+# The argument parser should allow us to use sub parsers.
+parser = argparse.ArgumentParser(
+        description='IPA Auditor and Infolets',
+        epilog='Use this with a wrapper to gather client or general IPA audit information')
+subparser = parser.add_subparsers(dest='cmd')
+subparser.required = True
+info_parser = subparser.add_parser('info', epilog='Use this to get IPA client information.')
+query_parser = subparser.add_parser('query', epilog='Use this to perform simple IPA queries.')
+audit_parser = subparser.add_parser('audit', epilog='Use this to perform audits of IPA policies')
+
+audit_parser.add_argument('--library', type=str, default='ipalib',
+                          help='Choose the ipa library to use for the auditor',
+                          choices=('ipalib', 'python_freeipa'))
+audit_parser.add_argument('--type', type=str, required=True,
+                          help='Type of audit: hbac, rbac, group, user',
+                          choices=('hbac', 'rbac', 'group', 'user'))
+audit_parser.add_argument('--name', type=str, default='',
+                          help='Name of the object you want to audit')
+audit_parser.add_argument('--deep', action='store_true',
+                          help='Name of the object you want to audit')
+
+results = parser.parse_args()
+command = parser.parse_args().cmd
+
+################################################################################
+# Generic classes. These are the classes for very generic operations and
+# getting information, usually about the host.
+# pylint: disable=too-few-public-methods
+class EtcIPADefault:
+    """
+    Reads just the /etc/ipa/default.conf file that is generated
+    """
+    @staticmethod
+    def read():
+        """
+        Attempt to read the config file
+        """
+        if not os.path.exists('/etc/ipa/default.conf'):
+            print('File does not exist (/etc/ipa/default.conf)', sys.stderr)
+            print('Is this system enrolled to a domain?', sys.stderr)
+            sys.exit(1)
+
+        __config = configparser.ConfigParser()
+        __config.read('/etc/ipa/default.conf')
+        outter_info = {}
+        outter_info['local_host_name'] = socket.gethostname()
+        outter_info['ipa_joined_name'] = __config['global']['host']
+        outter_info['ipa_domain'] = __config['global']['domain']
+        outter_info['ipa_realm'] = __config['global']['realm']
+        outter_info['registered_dc'] = __config['global']['server']
+        return outter_info
+
+class SssctlInfo:
+    """
+    Uses sssctl to gather minimum required information. Most current
+    distributions that support IPA should have this binary available.
+    """
+    @staticmethod
+    def domain_status(ipa_domain):
+        """
+        Gets the status from sssctl
+        """
+        sssctl_cmd = f'/usr/sbin/sssctl domain-status -o {ipa_domain}'
+        if not os.path.exists('/usr/sbin/sssctl'):
+            return 'sssctl command not found'
+
+        if not os.getuid() == 0:
+            return 'Unknown; root required'
+
+        if sys.version_info[:2] <= (3, 6):
+            processor = subprocess.run(args=sssctl_cmd,
+                                       shell=True, check=False,
+                                       universal_newlines=True,
+                                       stdout=subprocess.PIPE,
+                                       stderr=subprocess.PIPE)
+        else:
+            processor = subprocess.run(args=f'/usr/sbin/sssctl domain-status -o {ipa_domain}',
+                                       check=False, capture_output=True, text=True, shell=True)
+
+        domain_status_out = processor.stdout.strip().split(':')[1].strip()
+        return domain_status_out
+
+    @staticmethod
+    def current_dc(ipa_domain):
+        """
+        Gets the current connected DC
+        """
+        sssctl_cmd = f'/usr/sbin/sssctl domain-status -a {ipa_domain} | grep IPA'
+        if not os.path.exists('/usr/sbin/sssctl'):
+            return 'sssctl command not found'
+
+        if not os.getuid() == 0:
+            return 'Unknown; root required'
+
+        if sys.version_info[:2] <= (3, 6):
+            processor = subprocess.run(args=sssctl_cmd,
+                                       shell=True, check=False,
+                                       universal_newlines=True,
+                                       stdout=subprocess.PIPE,
+                                       stderr=subprocess.PIPE)
+        else:
+            # pylint: disable=line-too-long
+            processor = subprocess.run(args=f'/usr/sbin/sssctl domain-status -a {ipa_domain} | grep IPA',
+                                       check=False, capture_output=True, text=True, shell=True)
+
+        current_dc_out = processor.stdout.strip().split(':')[1].strip()
+        return current_dc_out
+
+class IPACalls:
+    """
+    IPA specific API calls. info, query, audit should all call in this.
+    """
+    ################################################################################
+    # Kerberos
+    @staticmethod
+    def quick_host_kinit():
+        """
+        brings in the host kerb ticket
+        """
+        etc_ipa_default = EtcIPADefault.read()
+        # pylint: disable=line-too-long
+        kinit_cmd = f"/usr/bin/kinit -kt /etc/krb5.keytab host/{etc_ipa_default['local_host_name']}@{etc_ipa_default['ipa_realm']}"
+        err_code = subprocess.run(args=kinit_cmd, shell=True, check=False)
+        if err_code.returncode != 0:
+            print('We could not run kdestroy on the host.', sys.stderr)
+            sys.exit(1)
+
+    @staticmethod
+    def quick_host_kdestroy():
+        """
+        destroys the host kerb ticket
+        """
+        etc_ipa_default = EtcIPADefault.read()
+        # pylint: disable=line-too-long
+        kdestroy_cmd = f"/usr/bin/kdestroy -p host/{etc_ipa_default['local_host_name']}@{etc_ipa_default['ipa_realm']}"
+        err_code = subprocess.run(args=kdestroy_cmd, shell=True, check=False)
+        if err_code.returncode != 0:
+            print('We could not run kinit as the host.', sys.stderr)
+            sys.exit(1)
+
+    # End kerberos
+    ################################################################################
+
+    ################################################################################
+    # Static IPA calls
+    @staticmethod
+    def get_host_groups(api, host):
+        """
+        Gets the list of hostgroups this client is a part of
+        """
+        if api:
+            api_results = api.host_show(host, all=True)['result']['memberof_hostgroup']
+            return api_results
+        return ['Unknown, no kerb ticket']
+
+    # End static IPA calls
+    ################################################################################
+
+class IPAInfo:
+    """
+    Get IPA specific information for a client.
+    """
+    @staticmethod
+    def get_basic_ipa_info(api):
+        """
+        Gets the actual info
+        """
+        etc_ipa_default = EtcIPADefault.read()
+        domain_status = SssctlInfo.domain_status(etc_ipa_default['ipa_domain'])
+        current_dc = SssctlInfo.current_dc(etc_ipa_default['ipa_domain'])
+        current_hostname = etc_ipa_default['local_host_name']
+        hostgroups = '\n                    '.join(IPACalls.get_host_groups(api, current_hostname))
+        output_dict = {
+                'Local host name:': etc_ipa_default['local_host_name'],
+                'Joined to domain:': etc_ipa_default['ipa_domain'],
+                'Joined as:': etc_ipa_default['ipa_joined_name'],
+                'Registered DC:': etc_ipa_default['registered_dc'],
+                'Current DC:': current_dc,
+                'Domain status:': domain_status,
+                'Host Group(s):': hostgroups,
+        }
+        for key, value in output_dict.items():
+            print(f'{key: <20}{value}')
+
+    @staticmethod
+    def basic_ipa_info(api):
+        """
+        Basic IPA info (aka ipainfo).
+        """
+        IPAInfo.get_basic_ipa_info(api)
+
+################################################################################
+# Specific classes. These are for classes with a very specific use case. Mainly
+# for working with the auditor or query system.
+class IPAAudit:
+    """
+    This is for getting audit data
+
+    RBAC, HBAC. "deep" option should recurse down groups and users
+    """
+    @staticmethod
+    def entry(api, control, name, deep):
+        """
+        Gets us started on the audit
+        """
+        if control == 'rbac':
+            IPAAudit.rbac_pull(api, name, deep)
+
+    @staticmethod
+    def user_pull(api, name, deep):
+        """
+        Gets requested rbac info
+        """
+        print()
+
+    @staticmethod
+    def group_pull(api, name, deep):
+        """
+        Gets requested rbac info
+        """
+        print()
+
+    @staticmethod
+    def hbac_pull(api, name, deep):
+        """
+        Gets requested rbac info
+        """
+        try:
+            hbac_results = IPAQuery.hbac_data(api, name)
+        except:
+            print(f'Could not find {name}', sys.stderr)
+            sys.exit(1)
+
+        hbac_description = '' if not hbac_results.get('description', None) else hbac_results['description'][0]
+        hbac_svcs = '' if not hbac_results.get('memberservice_hbacsvc', None) else '\n                '.join(hbac_results['memberservice_hbacsvc'])
+        hbac_svcs_groups = '' if not hbac_results.get('memberservice_hbacsvcgroup', None) else '\n                '.join(hbac_results['memberservice_hbacsvcgroup'])
+        users = '' if not hbac_results.get('memberuser_user', None) else '\n '.join(hbac_results['memberuser_user'])
+        hosts = '' if not hbac_results.get('memberhost_host', None) else '\n '.join(hbac_results['memberhost_host'])
+        groups = '' if not hbac_results.get('memberuser_group', None) else '\n                '.join(hbac_results['memberuser_group'])
+        hostgroups = '' if not hbac_results.get('memberhost_hostgroup', None) else '\n                '.join(hbac_results['memberhost_hostgroup'])
+
+    @staticmethod
+    def rbac_pull(api, name, deep):
+        """
+        Gets requested rbac info
+        """
+        try:
+            rbac_results = IPAQuery.role_data(api, name)
+        except:
+            print(f'Could not find {name}', sys.stderr)
+            sys.exit(1)
+
+        # pylint: disable=line-too-long
+        rbac_description = '' if not rbac_results.get('description', None) else rbac_results['description'][0]
+        rbac_privs = '' if not rbac_results.get('memberof_privilege', None) else '\n                '.join(rbac_results['memberof_privilege'])
+        users = '' if not rbac_results.get('member_user', None) else '\n                '.join(rbac_results['member_user'])
+        hosts = '' if not rbac_results.get('member_host', None) else '\n                '.join(rbac_results['member_host'])
+        groups = '' if not rbac_results.get('member_group', None) else '\n                '.join(rbac_results['member_group'])
+        hostgroups = '' if not rbac_results.get('member_hostgroup', None) else '\n                '.join(rbac_results['member_hostgroup'])
+
+        starter_rbac = {
+                'Role Name:': name,
+                'Description:': rbac_description,
+                'Privileges:': rbac_privs,
+                'Users:': users,
+                'Groups:': groups,
+                'Hosts:': hosts,
+                'Hosts Groups:': hostgroups,
+        }
+        print('RBAC Information')
+        print('----------------------------------------')
+        for key, value in starter_rbac.items():
+            if len(value) > 0:
+                print(f'{key: <16}{value}')
+        print('')
+
+        if deep:
+            user_list = [] if not rbac_results.get('member_user', None) else rbac_results['member_user']
+            group_list = [] if not rbac_results.get('member_group', None) else rbac_results['member_group']
+            priv_list = [] if not rbac_results.get('memberof_privilege', None) else rbac_results['memberof_privilege']
+            IPAAudit.role_deep_list(api, user_list, group_list, priv_list)
+
+    @staticmethod
+    # pylint: disable=dangerous-default-value
+    def hbac_deep_list(api, users, groups, privs):
+        """
+        Does recursive digging on the control provided
+        """
+        print()
+
+    @staticmethod
+    # pylint: disable=dangerous-default-value
+    def role_deep_list(api, users, groups, privs):
+        """
+        Does recursive digging on the users provided
+        """
+        starting_perms = []
+        for priv in privs:
+            data = IPAQuery.priv_data(api, priv)
+            description = '' if not data.get('description', None) else data['description'][0]
+            permlist = '' if not data.get('memberof_permission', None) else data['memberof_permission']
+            if len(permlist) > 0:
+                for perm in permlist:
+                    if perm not in starting_perms:
+                        starting_perms.append(perm)
+
+        print(f'Permissions Applied to this Role')
+        print('----------------------------------------')
+        for item in starting_perms:
+            print(item)
+        print('')
+
+        starting_user_list = users
+        for group in groups:
+            data = IPAQuery.group_data(api, group)
+            description = '' if not data.get('description', None) else data['description'][0]
+            userlist = '' if not data.get('member_user', None) else data['member_user']
+            ind_userlist = '' if not data.get('memberindirect_user', None) else data['memberindirect_user']
+            grouplist = '' if not data.get('member_group', None) else '\n                '.join(data['member_group'])
+
+            user_list = []
+            ind_user_list = []
+            if len(userlist) > 0:
+                for user in userlist:
+                    user_list.append(f'{user}')
+                    if user not in starting_user_list:
+                        starting_user_list.append(user)
+            if len(ind_userlist) > 0:
+                for user in ind_userlist:
+                    ind_user_list.append(f'{user}')
+                    if user not in starting_user_list:
+                        starting_user_list.append(user)
+
+            user_list_join = '\n                '.join(user_list)
+            ind_user_list_join = '\n                '.join(ind_user_list)
+
+            group_dict = {
+                    'Description:': description,
+                    'Users:': user_list_join,
+                    'Indirect Users:': ind_user_list_join,
+                    'Groups:': grouplist,
+            }
+            print(f'Group: {group}')
+            print('----------------------------------------')
+            for key, value in group_dict.items():
+                if len(value) > 0:
+                    print(f'{key: <16}{value}')
+            print('')
+
+        final_user_list = {}
+        for user in starting_user_list:
+            data = IPAQuery.user_data(api, user)
+            this_user = IPAQuery.user_data(api, user)
+            fullname = f"{this_user['givenname'][0]} {this_user['sn'][0]}"
+            final_user_list[user] = fullname
+
+        if len(starting_user_list) > 0:
+            print('Full List of Users for this role')
+            print('----------------------------------------')
+        for key, value in final_user_list.items():
+            if len(value) > 0:
+                print(f'{key: <24}{value}')
+
+    @staticmethod
+    def user_deep_list(api, user):
+        """
+        Does a recursive dig on a user
+        """
+
+    @staticmethod
+    def group_deep_list(api, group):
+        """
+        Does a recursive dig on a group
+        """
+
+class IPAQuery:
+    """
+    This is for getting query data
+    """
+    @staticmethod
+    def user_data(api, user):
+        """
+        Returns all user data
+        """
+        return api.user_show(user)['result']
+
+    @staticmethod
+    def group_data(api, group):
+        """
+        Returns all group data
+        """
+        return api.group_show(group)['result']
+
+    @staticmethod
+    def hostgroup_data(api, group):
+        """
+        Returns all group data
+        """
+        return api.hostgroup_show(group)['result']
+
+    @staticmethod
+    def role_data(api, role):
+        """
+        Returns all role data
+        """
+        return api.role_show(role)['result']
+
+    @staticmethod
+    def priv_data(api, priv):
+        """
+        Returns all role data
+        """
+        return api.privilege_show(priv)['result']
+
+    @staticmethod
+    def hbac_data(api, hbac):
+        """
+        Returns all hbac data
+        """
+        return api.hbacrule_show(hbac)['result']
+
+    @staticmethod
+    def hbacsvcgroup_data(api, hbacsvcgroup):
+        """
+        Returns all hbac service group data
+        """
+        return api.hbacsvcgroup_show(hbacsvcgroup)['result']
+
+# start main
+def get_api(ipa_library='ipalib'):
+    """
+    Gets and returns the right API entrypoint
+    """
+    # This is unfortunately hacky.
+    if ipa_library == 'ipalib':
+        # When root, use the hostkeytab
+        if os.getuid() == 0:
+            IPACalls.quick_host_kinit()
+        api = libapi
+        try:
+            api.bootstrap(context="custom")
+            api.finalize()
+            api.Backend.rpcclient.connect()
+            command_api = api.Command
+        except:
+            print('WARNING: No kerberos credentials\n')
+            command_api = None
+    elif ipa_library == 'python_freeipa':
+        print()
+    else:
+        print('Unsupported ipa library', sys.stderr)
+        sys.exit(1)
+
+    return command_api
+
+def main():
+    """
+    Main function entrypoint
+    """
+    command_api = get_api()
+    if command == 'audit':
+        IPAAudit.entry(command_api, results.type, results.name, results.deep)
+    elif command == 'info':
+        IPAInfo.basic_ipa_info(command_api)
+
+    # When root, kdestroy the host keytab
+    if os.getuid() == 0:
+        IPACalls.quick_host_kdestroy()
+
+if __name__ == '__main__':
+    main()

mangle/ipa/ipainfo

@@ -0,0 +1,26 @@
+#!/bin/bash
+# Wrapper for ipaauditor.py info
+
+source /etc/os-release
+case "$ID" in
+  rocky|centos|rhel)
+    case "${VERSION_ID:0:1}" in
+      5|6|7)
+        echo "Not supported."
+        exit 3
+        ;;
+      8)
+        PYTHON_EXEC="/usr/libexec/platform-python"
+        ;;
+      *)
+        PYTHON_EXEC="/usr/bin/python3"
+        ;;
+    esac ;;
+  ubuntu|debian)
+    PYTHON_EXEC="/usr/bin/python3"
+    ;;
+  fedora)
+    PYTHON_EXEC="/usr/bin/python3"
+esac
+
+$PYTHON_EXEC ipaauditor.py info "$@"

mangle/ipa/ipainfo-legacy

@@ -0,0 +1,14 @@
+#!/bin/bash
+# Wrapper for ipaauditor.py info
+
+__classic_output="
+Note: You are running on an older system that does not support python3 with
+FreeIPA, such as RHEL/CentOS 6 or 7. Information provided will be limited.
+
+Local host name:    $(hostname -f)
+Joined to domain:   $(awk '/domain/ {print $3}' /etc/ipa/default.conf)
+Joined as:          $(awk '/host/ {print $3}' /etc/ipa/default.conf)
+Registered DC:      $(awk '/server/ {print $3}' /etc/ipa/default.conf)
+"
+
+echo "$__classic_output"

mangle/ipa/ipainfo.py

@@ -110,14 +110,18 @@ class IPAInfo:
             return results
         return ['Unknown']
 
+    @staticmethod
+    def get_ipa_info():
+        """
+        Gets the actual info
+        """
+
         etc_ipa_default = EtcIPADefault.read()
         domain_status = SssctlInfo.domain_status(etc_ipa_default['ipa_domain'])
         current_dc = SssctlInfo.current_dc(etc_ipa_default['ipa_domain'])
         current_hostname = etc_ipa_default['local_host_name']
         current_domain = etc_ipa_default['ipa_domain']
         hostgroups = '\n                   '.join(IPAInfo.get_host_groups(current_hostname))
-
-def main():
         output = f'''
 Local host name:   {etc_ipa_default['local_host_name']}
 Joined to domain:  {etc_ipa_default['ipa_domain']}
@@ -129,5 +133,9 @@ Host Group(s):     {hostgroups}
 '''
         print(output)
 
+
+def main():
+    IPAInfo.get_ipa_info()
+
 if __name__ == '__main__':
     main()

mangle/ipa/ipaquery

@@ -0,0 +1,25 @@
+#!/bin/bash
+# Wrapper for ipaauditor.py query
+
+case "$ID" in
+  rocky|centos|rhel)
+    case "${VERSION_ID:0:1}" in
+      5|6|7)
+        echo "Not supported."
+        exit 3
+        ;;
+      8)
+        PYTHON_EXEC="/usr/libexec/platform-python"
+        ;;
+      *)
+        PYTHON_EXEC="/usr/bin/python3"
+        ;;
+    esac ;;
+  ubuntu|debian)
+    PYTHON_EXEC="/usr/bin/python3"
+    ;;
+  fedora)
+    PYTHON_EXEC="/usr/bin/python3"
+esac
+
+$PYTHON_EXEC ipaquery.py query "$@"