# # Copyright (C) 2016 FreeIPA Contributors see COPYING for license # # pylint: disable=unused-import import six from . import Command, Method, Object from ipalib import api, parameters, output from ipalib.parameters import DefaultFrom from ipalib.plugable import Registry from ipalib.text import _ from ipapython.dn import DN from ipapython.dnsutil import DNSName if six.PY3: unicode = str __doc__ = _(""" Cross-realm trusts Manage trust relationship between IPA and Active Directory domains. In order to allow users from a remote domain to access resources in IPA domain, trust relationship needs to be established. Currently IPA supports only trusts between IPA and Active Directory domains under control of Windows Server 2008 or later, with functional level 2008 or later. Please note that DNS on both IPA and Active Directory domain sides should be configured properly to discover each other. Trust relationship relies on ability to discover special resources in the other domain via DNS records. Examples: 1. Establish cross-realm trust with Active Directory using AD administrator credentials: ipa trust-add --type=ad --admin --password 2. List all existing trust relationships: ipa trust-find 3. Show details of the specific trust relationship: ipa trust-show 4. Delete existing trust relationship: ipa trust-del Once trust relationship is established, remote users will need to be mapped to local POSIX groups in order to actually use IPA resources. The mapping should be done via use of external membership of non-POSIX group and then this group should be included into one of local POSIX groups. Example: 1. Create group for the trusted domain admins' mapping and their local POSIX group: ipa group-add --desc=' admins external map' ad_admins_external --external ipa group-add --desc=' admins' ad_admins 2. Add security identifier of Domain Admins of the to the ad_admins_external group: ipa group-add-member ad_admins_external --external 'AD\Domain Admins' 3. Allow members of ad_admins_external group to be associated with ad_admins POSIX group: ipa group-add-member ad_admins --groups ad_admins_external 4. List members of external members of ad_admins_external group to see their SIDs: ipa group-show ad_admins_external GLOBAL TRUST CONFIGURATION When IPA AD trust subpackage is installed and ipa-adtrust-install is run, a local domain configuration (SID, GUID, NetBIOS name) is generated. These identifiers are then used when communicating with a trusted domain of the particular type. 1. Show global trust configuration for Active Directory type of trusts: ipa trustconfig-show --type ad 2. Modify global configuration for all trusts of Active Directory type and set a different fallback primary group (fallback primary group GID is used as a primary user GID if user authenticating to IPA domain does not have any other primary GID already set): ipa trustconfig-mod --type ad --fallback-primary-group "alternative AD group" 3. Change primary fallback group back to default hidden group (any group with posixGroup object class is allowed): ipa trustconfig-mod --type ad --fallback-primary-group "Default SMB Group" """) register = Registry() @register() class trust(Object): takes_params = ( parameters.Str( 'cn', primary_key=True, label=_(u'Realm name'), ), parameters.Str( 'ipantflatname', label=_(u'Domain NetBIOS name'), ), parameters.Str( 'ipanttrusteddomainsid', label=_(u'Domain Security Identifier'), ), parameters.Str( 'ipantsidblacklistincoming', required=False, multivalue=True, label=_(u'SID blacklist incoming'), ), parameters.Str( 'ipantsidblacklistoutgoing', required=False, multivalue=True, label=_(u'SID blacklist outgoing'), ), ) @register() class trustconfig(Object): takes_params = ( parameters.Str( 'cn', label=_(u'Domain'), ), parameters.Str( 'ipantsecurityidentifier', label=_(u'Security Identifier'), ), parameters.Str( 'ipantflatname', label=_(u'NetBIOS name'), ), parameters.Str( 'ipantdomainguid', label=_(u'Domain GUID'), ), parameters.Str( 'ipantfallbackprimarygroup', label=_(u'Fallback primary group'), ), ) @register() class trustdomain(Object): takes_params = ( parameters.Str( 'cn', primary_key=True, label=_(u'Domain name'), ), parameters.Str( 'ipantflatname', required=False, label=_(u'Domain NetBIOS name'), ), parameters.Str( 'ipanttrusteddomainsid', required=False, label=_(u'Domain Security Identifier'), ), parameters.Str( 'ipanttrustpartner', required=False, label=_(u'Trusted domain partner'), ), ) @register() class adtrust_is_enabled(Command): __doc__ = _("Determine whether ipa-adtrust-install has been run on this system") NO_CLI = True takes_options = ( ) has_output = ( output.Output( 'result', ), ) @register() class compat_is_enabled(Command): __doc__ = _("Determine whether Schema Compatibility plugin is configured to serve trusted domain users and groups") NO_CLI = True takes_options = ( ) has_output = ( output.Output( 'result', ), ) @register() class sidgen_was_run(Command): __doc__ = _("Determine whether ipa-adtrust-install has been run with sidgen task") NO_CLI = True takes_options = ( ) has_output = ( output.Output( 'result', ), ) @register() class trust_add(Method): __doc__ = _(""" Add new trust to use. This command establishes trust relationship to another domain which becomes 'trusted'. As result, users of the trusted domain may access resources of this domain. Only trusts to Active Directory domains are supported right now. The command can be safely run multiple times against the same domain, this will cause change to trust relationship credentials on both sides. """) takes_args = ( parameters.Str( 'cn', cli_name='realm', label=_(u'Realm name'), ), ) takes_options = ( parameters.Str( 'setattr', required=False, multivalue=True, doc=_(u'Set an attribute to a name/value pair. Format is attr=value.\nFor multi-valued attributes, the command replaces the values already present.'), exclude=('webui',), ), parameters.Str( 'addattr', required=False, multivalue=True, doc=_(u'Add an attribute/value pair. Format is attr=value. The attribute\nmust be part of the schema.'), exclude=('webui',), ), parameters.Str( 'trust_type', cli_name='type', cli_metavar="['ad']", label=_(u'Trust type (ad for Active Directory, default)'), default=u'ad', autofill=True, ), parameters.Str( 'realm_admin', required=False, cli_name='admin', label=_(u'Active Directory domain administrator'), ), parameters.Password( 'realm_passwd', required=False, cli_name='password', label=_(u"Active Directory domain administrator's password"), ), parameters.Str( 'realm_server', required=False, cli_name='server', label=_(u'Domain controller for the Active Directory domain (optional)'), ), parameters.Password( 'trust_secret', required=False, label=_(u'Shared secret for the trust'), ), parameters.Int( 'base_id', required=False, label=_(u'First Posix ID of the range reserved for the trusted domain'), ), parameters.Int( 'range_size', required=False, label=_(u'Size of the ID range reserved for the trusted domain'), ), parameters.Str( 'range_type', required=False, cli_metavar="['ipa-ad-trust-posix', 'ipa-ad-trust']", label=_(u'Range type'), doc=_(u'Type of trusted domain ID range, one of ipa-ad-trust-posix, ipa-ad-trust'), ), parameters.Bool( 'bidirectional', required=False, cli_name='two_way', label=_(u'Two-way trust'), doc=_(u'Establish bi-directional trust. By default trust is inbound one-way only.'), default=False, ), parameters.Flag( 'all', doc=_(u'Retrieve and print all attributes from the server. Affects command output.'), exclude=('webui',), default=False, autofill=True, ), parameters.Flag( 'raw', doc=_(u'Print entries as stored on the server. Only affects output format.'), exclude=('webui',), default=False, autofill=True, ), ) has_output = ( output.Output( 'summary', (unicode, type(None)), doc=_(u'User-friendly description of action performed'), ), output.Entry( 'result', ), output.PrimaryKey( 'value', doc=_(u"The primary_key value of the entry, e.g. 'jdoe' for a user"), ), ) @register() class trust_del(Method): __doc__ = _("Delete a trust.") takes_args = ( parameters.Str( 'cn', multivalue=True, cli_name='realm', label=_(u'Realm name'), ), ) takes_options = ( parameters.Flag( 'continue', doc=_(u"Continuous mode: Don't stop on errors."), default=False, autofill=True, ), ) has_output = ( output.Output( 'summary', (unicode, type(None)), doc=_(u'User-friendly description of action performed'), ), output.Output( 'result', dict, doc=_(u'List of deletions that failed'), ), output.ListOfPrimaryKeys( 'value', ), ) @register() class trust_fetch_domains(Method): __doc__ = _("Refresh list of the domains associated with the trust") takes_args = ( parameters.Str( 'cn', cli_name='realm', label=_(u'Realm name'), ), ) takes_options = ( parameters.Flag( 'rights', label=_(u'Rights'), doc=_(u'Display the access rights of this entry (requires --all). See ipa man page for details.'), default=False, autofill=True, ), parameters.Str( 'realm_server', required=False, cli_name='server', label=_(u'Domain controller for the Active Directory domain (optional)'), ), parameters.Flag( 'all', doc=_(u'Retrieve and print all attributes from the server. Affects command output.'), exclude=('webui',), default=False, autofill=True, ), parameters.Flag( 'raw', doc=_(u'Print entries as stored on the server. Only affects output format.'), exclude=('webui',), default=False, autofill=True, ), ) has_output = ( output.Output( 'summary', (unicode, type(None)), doc=_(u'User-friendly description of action performed'), ), output.ListOfEntries( 'result', ), output.Output( 'count', int, doc=_(u'Number of entries returned'), ), output.Output( 'truncated', bool, doc=_(u'True if not all results were returned'), ), ) @register() class trust_find(Method): __doc__ = _("Search for trusts.") takes_args = ( parameters.Str( 'criteria', required=False, doc=_(u'A string searched in all relevant object attributes'), ), ) takes_options = ( parameters.Str( 'cn', required=False, cli_name='realm', label=_(u'Realm name'), ), parameters.Str( 'ipantflatname', required=False, cli_name='flat_name', label=_(u'Domain NetBIOS name'), ), parameters.Str( 'ipanttrusteddomainsid', required=False, cli_name='sid', label=_(u'Domain Security Identifier'), ), parameters.Str( 'ipantsidblacklistincoming', required=False, multivalue=True, cli_name='sid_blacklist_incoming', label=_(u'SID blacklist incoming'), ), parameters.Str( 'ipantsidblacklistoutgoing', required=False, multivalue=True, cli_name='sid_blacklist_outgoing', label=_(u'SID blacklist outgoing'), ), parameters.Int( 'timelimit', required=False, label=_(u'Time Limit'), doc=_(u'Time limit of search in seconds (0 is unlimited)'), ), parameters.Int( 'sizelimit', required=False, label=_(u'Size Limit'), doc=_(u'Maximum number of entries returned (0 is unlimited)'), ), parameters.Flag( 'all', doc=_(u'Retrieve and print all attributes from the server. Affects command output.'), exclude=('webui',), default=False, autofill=True, ), parameters.Flag( 'raw', doc=_(u'Print entries as stored on the server. Only affects output format.'), exclude=('webui',), default=False, autofill=True, ), parameters.Flag( 'pkey_only', required=False, label=_(u'Primary key only'), doc=_(u'Results should contain primary key attribute only ("realm")'), default=False, autofill=True, ), ) has_output = ( output.Output( 'summary', (unicode, type(None)), doc=_(u'User-friendly description of action performed'), ), output.ListOfEntries( 'result', ), output.Output( 'count', int, doc=_(u'Number of entries returned'), ), output.Output( 'truncated', bool, doc=_(u'True if not all results were returned'), ), ) @register() class trust_mod(Method): __doc__ = _(""" Modify a trust (for future use). Currently only the default option to modify the LDAP attributes is available. More specific options will be added in coming releases. """) takes_args = ( parameters.Str( 'cn', cli_name='realm', label=_(u'Realm name'), ), ) takes_options = ( parameters.Str( 'ipantsidblacklistincoming', required=False, multivalue=True, cli_name='sid_blacklist_incoming', label=_(u'SID blacklist incoming'), ), parameters.Str( 'ipantsidblacklistoutgoing', required=False, multivalue=True, cli_name='sid_blacklist_outgoing', label=_(u'SID blacklist outgoing'), ), parameters.Str( 'setattr', required=False, multivalue=True, doc=_(u'Set an attribute to a name/value pair. Format is attr=value.\nFor multi-valued attributes, the command replaces the values already present.'), exclude=('webui',), ), parameters.Str( 'addattr', required=False, multivalue=True, doc=_(u'Add an attribute/value pair. Format is attr=value. The attribute\nmust be part of the schema.'), exclude=('webui',), ), parameters.Str( 'delattr', required=False, multivalue=True, doc=_(u'Delete an attribute/value pair. The option will be evaluated\nlast, after all sets and adds.'), exclude=('webui',), ), parameters.Flag( 'rights', label=_(u'Rights'), doc=_(u'Display the access rights of this entry (requires --all). See ipa man page for details.'), default=False, autofill=True, ), parameters.Flag( 'all', doc=_(u'Retrieve and print all attributes from the server. Affects command output.'), exclude=('webui',), default=False, autofill=True, ), parameters.Flag( 'raw', doc=_(u'Print entries as stored on the server. Only affects output format.'), exclude=('webui',), default=False, autofill=True, ), ) has_output = ( output.Output( 'summary', (unicode, type(None)), doc=_(u'User-friendly description of action performed'), ), output.Entry( 'result', ), output.PrimaryKey( 'value', doc=_(u"The primary_key value of the entry, e.g. 'jdoe' for a user"), ), ) @register() class trust_resolve(Command): __doc__ = _("Resolve security identifiers of users and groups in trusted domains") NO_CLI = True takes_options = ( parameters.Str( 'sids', multivalue=True, label=_(u'Security Identifiers (SIDs)'), ), parameters.Flag( 'all', doc=_(u'Retrieve and print all attributes from the server. Affects command output.'), exclude=('webui',), default=False, autofill=True, ), parameters.Flag( 'raw', doc=_(u'Print entries as stored on the server. Only affects output format.'), exclude=('webui',), default=False, autofill=True, ), ) has_output = ( output.ListOfEntries( 'result', ), ) @register() class trust_show(Method): __doc__ = _("Display information about a trust.") takes_args = ( parameters.Str( 'cn', cli_name='realm', label=_(u'Realm name'), ), ) takes_options = ( parameters.Flag( 'rights', label=_(u'Rights'), doc=_(u'Display the access rights of this entry (requires --all). See ipa man page for details.'), default=False, autofill=True, ), parameters.Flag( 'all', doc=_(u'Retrieve and print all attributes from the server. Affects command output.'), exclude=('webui',), default=False, autofill=True, ), parameters.Flag( 'raw', doc=_(u'Print entries as stored on the server. Only affects output format.'), exclude=('webui',), default=False, autofill=True, ), ) has_output = ( output.Output( 'summary', (unicode, type(None)), doc=_(u'User-friendly description of action performed'), ), output.Entry( 'result', ), output.PrimaryKey( 'value', doc=_(u"The primary_key value of the entry, e.g. 'jdoe' for a user"), ), ) @register() class trustconfig_mod(Method): __doc__ = _("Modify global trust configuration.") takes_options = ( parameters.Str( 'ipantfallbackprimarygroup', required=False, cli_name='fallback_primary_group', label=_(u'Fallback primary group'), ), parameters.Str( 'setattr', required=False, multivalue=True, doc=_(u'Set an attribute to a name/value pair. Format is attr=value.\nFor multi-valued attributes, the command replaces the values already present.'), exclude=('webui',), ), parameters.Str( 'addattr', required=False, multivalue=True, doc=_(u'Add an attribute/value pair. Format is attr=value. The attribute\nmust be part of the schema.'), exclude=('webui',), ), parameters.Str( 'delattr', required=False, multivalue=True, doc=_(u'Delete an attribute/value pair. The option will be evaluated\nlast, after all sets and adds.'), exclude=('webui',), ), parameters.Flag( 'rights', label=_(u'Rights'), doc=_(u'Display the access rights of this entry (requires --all). See ipa man page for details.'), default=False, autofill=True, ), parameters.Str( 'trust_type', cli_name='type', cli_metavar="['ad']", label=_(u'Trust type (ad for Active Directory, default)'), default=u'ad', autofill=True, ), parameters.Flag( 'all', doc=_(u'Retrieve and print all attributes from the server. Affects command output.'), exclude=('webui',), default=False, autofill=True, ), parameters.Flag( 'raw', doc=_(u'Print entries as stored on the server. Only affects output format.'), exclude=('webui',), default=False, autofill=True, ), ) has_output = ( output.Output( 'summary', (unicode, type(None)), doc=_(u'User-friendly description of action performed'), ), output.Entry( 'result', ), output.PrimaryKey( 'value', doc=_(u"The primary_key value of the entry, e.g. 'jdoe' for a user"), ), ) @register() class trustconfig_show(Method): __doc__ = _("Show global trust configuration.") takes_options = ( parameters.Flag( 'rights', label=_(u'Rights'), doc=_(u'Display the access rights of this entry (requires --all). See ipa man page for details.'), default=False, autofill=True, ), parameters.Str( 'trust_type', cli_name='type', cli_metavar="['ad']", label=_(u'Trust type (ad for Active Directory, default)'), default=u'ad', autofill=True, ), parameters.Flag( 'all', doc=_(u'Retrieve and print all attributes from the server. Affects command output.'), exclude=('webui',), default=False, autofill=True, ), parameters.Flag( 'raw', doc=_(u'Print entries as stored on the server. Only affects output format.'), exclude=('webui',), default=False, autofill=True, ), ) has_output = ( output.Output( 'summary', (unicode, type(None)), doc=_(u'User-friendly description of action performed'), ), output.Entry( 'result', ), output.PrimaryKey( 'value', doc=_(u"The primary_key value of the entry, e.g. 'jdoe' for a user"), ), ) @register() class trustdomain_add(Method): __doc__ = _("Allow access from the trusted domain") NO_CLI = True takes_args = ( parameters.Str( 'trustcn', cli_name='trust', label=_(u'Realm name'), ), parameters.Str( 'cn', cli_name='domain', label=_(u'Domain name'), ), ) takes_options = ( parameters.Str( 'ipantflatname', required=False, cli_name='flat_name', label=_(u'Domain NetBIOS name'), ), parameters.Str( 'ipanttrusteddomainsid', required=False, cli_name='sid', label=_(u'Domain Security Identifier'), ), parameters.Str( 'ipanttrustpartner', required=False, label=_(u'Trusted domain partner'), exclude=('cli', 'webui'), ), parameters.Str( 'setattr', required=False, multivalue=True, doc=_(u'Set an attribute to a name/value pair. Format is attr=value.\nFor multi-valued attributes, the command replaces the values already present.'), exclude=('webui',), ), parameters.Str( 'addattr', required=False, multivalue=True, doc=_(u'Add an attribute/value pair. Format is attr=value. The attribute\nmust be part of the schema.'), exclude=('webui',), ), parameters.Str( 'trust_type', cli_name='type', cli_metavar="['ad']", label=_(u'Trust type (ad for Active Directory, default)'), default=u'ad', autofill=True, ), parameters.Flag( 'all', doc=_(u'Retrieve and print all attributes from the server. Affects command output.'), exclude=('webui',), default=False, autofill=True, ), parameters.Flag( 'raw', doc=_(u'Print entries as stored on the server. Only affects output format.'), exclude=('webui',), default=False, autofill=True, ), ) has_output = ( output.Output( 'summary', (unicode, type(None)), doc=_(u'User-friendly description of action performed'), ), output.Entry( 'result', ), output.PrimaryKey( 'value', doc=_(u"The primary_key value of the entry, e.g. 'jdoe' for a user"), ), ) @register() class trustdomain_del(Method): __doc__ = _("Remove information about the domain associated with the trust.") takes_args = ( parameters.Str( 'trustcn', cli_name='trust', label=_(u'Realm name'), ), parameters.Str( 'cn', multivalue=True, cli_name='domain', label=_(u'Domain name'), ), ) takes_options = ( parameters.Flag( 'continue', doc=_(u"Continuous mode: Don't stop on errors."), default=False, autofill=True, ), ) has_output = ( output.Output( 'summary', (unicode, type(None)), doc=_(u'User-friendly description of action performed'), ), output.Output( 'result', dict, doc=_(u'List of deletions that failed'), ), output.ListOfPrimaryKeys( 'value', ), ) @register() class trustdomain_disable(Method): __doc__ = _("Disable use of IPA resources by the domain of the trust") takes_args = ( parameters.Str( 'trustcn', cli_name='trust', label=_(u'Realm name'), ), parameters.Str( 'cn', cli_name='domain', label=_(u'Domain name'), ), ) takes_options = ( ) has_output = ( output.Output( 'summary', (unicode, type(None)), doc=_(u'User-friendly description of action performed'), ), output.Output( 'result', bool, doc=_(u'True means the operation was successful'), ), output.PrimaryKey( 'value', doc=_(u"The primary_key value of the entry, e.g. 'jdoe' for a user"), ), ) @register() class trustdomain_enable(Method): __doc__ = _("Allow use of IPA resources by the domain of the trust") takes_args = ( parameters.Str( 'trustcn', cli_name='trust', label=_(u'Realm name'), ), parameters.Str( 'cn', cli_name='domain', label=_(u'Domain name'), ), ) takes_options = ( ) has_output = ( output.Output( 'summary', (unicode, type(None)), doc=_(u'User-friendly description of action performed'), ), output.Output( 'result', bool, doc=_(u'True means the operation was successful'), ), output.PrimaryKey( 'value', doc=_(u"The primary_key value of the entry, e.g. 'jdoe' for a user"), ), ) @register() class trustdomain_find(Method): __doc__ = _("Search domains of the trust") takes_args = ( parameters.Str( 'trustcn', cli_name='trust', label=_(u'Realm name'), ), parameters.Str( 'criteria', required=False, doc=_(u'A string searched in all relevant object attributes'), ), ) takes_options = ( parameters.Str( 'cn', required=False, cli_name='domain', label=_(u'Domain name'), ), parameters.Str( 'ipantflatname', required=False, cli_name='flat_name', label=_(u'Domain NetBIOS name'), ), parameters.Str( 'ipanttrusteddomainsid', required=False, cli_name='sid', label=_(u'Domain Security Identifier'), ), parameters.Str( 'ipanttrustpartner', required=False, label=_(u'Trusted domain partner'), exclude=('cli', 'webui'), ), parameters.Int( 'timelimit', required=False, label=_(u'Time Limit'), doc=_(u'Time limit of search in seconds (0 is unlimited)'), ), parameters.Int( 'sizelimit', required=False, label=_(u'Size Limit'), doc=_(u'Maximum number of entries returned (0 is unlimited)'), ), parameters.Flag( 'all', doc=_(u'Retrieve and print all attributes from the server. Affects command output.'), exclude=('webui',), default=False, autofill=True, ), parameters.Flag( 'raw', doc=_(u'Print entries as stored on the server. Only affects output format.'), exclude=('webui',), default=False, autofill=True, ), parameters.Flag( 'pkey_only', required=False, label=_(u'Primary key only'), doc=_(u'Results should contain primary key attribute only ("domain")'), default=False, autofill=True, ), ) has_output = ( output.Output( 'summary', (unicode, type(None)), doc=_(u'User-friendly description of action performed'), ), output.ListOfEntries( 'result', ), output.Output( 'count', int, doc=_(u'Number of entries returned'), ), output.Output( 'truncated', bool, doc=_(u'True if not all results were returned'), ), ) @register() class trustdomain_mod(Method): __doc__ = _("Modify trustdomain of the trust") NO_CLI = True takes_args = ( parameters.Str( 'trustcn', cli_name='trust', label=_(u'Realm name'), ), parameters.Str( 'cn', cli_name='domain', label=_(u'Domain name'), ), ) takes_options = ( parameters.Str( 'ipantflatname', required=False, cli_name='flat_name', label=_(u'Domain NetBIOS name'), ), parameters.Str( 'ipanttrusteddomainsid', required=False, cli_name='sid', label=_(u'Domain Security Identifier'), ), parameters.Str( 'ipanttrustpartner', required=False, label=_(u'Trusted domain partner'), exclude=('cli', 'webui'), ), parameters.Str( 'setattr', required=False, multivalue=True, doc=_(u'Set an attribute to a name/value pair. Format is attr=value.\nFor multi-valued attributes, the command replaces the values already present.'), exclude=('webui',), ), parameters.Str( 'addattr', required=False, multivalue=True, doc=_(u'Add an attribute/value pair. Format is attr=value. The attribute\nmust be part of the schema.'), exclude=('webui',), ), parameters.Str( 'delattr', required=False, multivalue=True, doc=_(u'Delete an attribute/value pair. The option will be evaluated\nlast, after all sets and adds.'), exclude=('webui',), ), parameters.Flag( 'rights', label=_(u'Rights'), doc=_(u'Display the access rights of this entry (requires --all). See ipa man page for details.'), default=False, autofill=True, ), parameters.Str( 'trust_type', cli_name='type', cli_metavar="['ad']", label=_(u'Trust type (ad for Active Directory, default)'), default=u'ad', autofill=True, ), parameters.Flag( 'all', doc=_(u'Retrieve and print all attributes from the server. Affects command output.'), exclude=('webui',), default=False, autofill=True, ), parameters.Flag( 'raw', doc=_(u'Print entries as stored on the server. Only affects output format.'), exclude=('webui',), default=False, autofill=True, ), ) has_output = ( output.Output( 'summary', (unicode, type(None)), doc=_(u'User-friendly description of action performed'), ), output.Entry( 'result', ), output.PrimaryKey( 'value', doc=_(u"The primary_key value of the entry, e.g. 'jdoe' for a user"), ), ) 'n953' href='#n953'>953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369

/*
 *  drivers/s390/char/tape_34xx.c
 *    tape device discipline for 3480/3490 tapes.
 *
 *    Copyright (C) IBM Corp. 2001,2006
 *    Author(s): Carsten Otte <cotte@de.ibm.com>
 *		 Tuan Ngo-Anh <ngoanh@de.ibm.com>
 *		 Martin Schwidefsky <schwidefsky@de.ibm.com>
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/bio.h>
#include <linux/workqueue.h>

#define TAPE_DBF_AREA	tape_34xx_dbf

#include "tape.h"
#include "tape_std.h"

#define PRINTK_HEADER "TAPE_34XX: "

/*
 * Pointer to debug area.
 */
debug_info_t *TAPE_DBF_AREA = NULL;
EXPORT_SYMBOL(TAPE_DBF_AREA);

#define TAPE34XX_FMT_3480	0
#define TAPE34XX_FMT_3480_2_XF	1
#define TAPE34XX_FMT_3480_XF	2

struct tape_34xx_block_id {
	unsigned int	wrap		: 1;
	unsigned int	segment		: 7;
	unsigned int	format		: 2;
	unsigned int	block		: 22;
};

/*
 * A list of block ID's is used to faster seek blocks.
 */
struct tape_34xx_sbid {
	struct list_head		list;
	struct tape_34xx_block_id	bid;
};

static void tape_34xx_delete_sbid_from(struct tape_device *, int);

/*
 * Medium sense for 34xx tapes. There is no 'real' medium sense call.
 * So we just do a normal sense.
 */
static int
tape_34xx_medium_sense(struct tape_device *device)
{
	struct tape_request *request;
	unsigned char       *sense;
	int                  rc;

	request = tape_alloc_request(1, 32);
	if (IS_ERR(request)) {
		DBF_EXCEPTION(6, "MSEN fail\n");
		return PTR_ERR(request);
	}

	request->op = TO_MSEN;
	tape_ccw_end(request->cpaddr, SENSE, 32, request->cpdata);

	rc = tape_do_io_interruptible(device, request);
	if (request->rc == 0) {
		sense = request->cpdata;

		/*
		 * This isn't quite correct. But since INTERVENTION_REQUIRED
		 * means that the drive is 'neither ready nor on-line' it is
		 * only slightly inaccurate to say there is no tape loaded if
		 * the drive isn't online...
		 */
		if (sense[0] & SENSE_INTERVENTION_REQUIRED)
			tape_med_state_set(device, MS_UNLOADED);
		else
			tape_med_state_set(device, MS_LOADED);

		if (sense[1] & SENSE_WRITE_PROTECT)
			device->tape_generic_status |= GMT_WR_PROT(~0);
		else
			device->tape_generic_status &= ~GMT_WR_PROT(~0);
	} else {
		DBF_EVENT(4, "tape_34xx: medium sense failed with rc=%d\n",
			request->rc);
	}
	tape_free_request(request);

	return rc;
}

struct tape_34xx_work {
	struct tape_device	*device;
	enum tape_op		 op;
	struct work_struct	 work;
};

/*
 * These functions are currently used only to schedule a medium_sense for
 * later execution. This is because we get an interrupt whenever a medium
 * is inserted but cannot call tape_do_io* from an interrupt context.
 * Maybe that's useful for other actions we want to start from the
 * interrupt handler.
 */
static void
tape_34xx_work_handler(struct work_struct *work)
{
	struct tape_34xx_work *p =
		container_of(work, struct tape_34xx_work, work);

	switch(p->op) {
		case TO_MSEN:
			tape_34xx_medium_sense(p->device);
			break;
		default:
			DBF_EVENT(3, "T34XX: internal error: unknown work\n");
	}

	p->device = tape_put_device(p->device);
	kfree(p);
}

static int
tape_34xx_schedule_work(struct tape_device *device, enum tape_op op)
{
	struct tape_34xx_work *p;

	if ((p = kzalloc(sizeof(*p), GFP_ATOMIC)) == NULL)
		return -ENOMEM;

	INIT_WORK(&p->work, tape_34xx_work_handler);

	p->device = tape_get_device_reference(device);
	p->op     = op;

	schedule_work(&p->work);
	return 0;
}

/*
 * Done Handler is called when dev stat = DEVICE-END (successful operation)
 */
static inline int
tape_34xx_done(struct tape_request *request)
{
	DBF_EVENT(6, "%s done\n", tape_op_verbose[request->op]);

	switch (request->op) {
		case TO_DSE:
		case TO_RUN:
		case TO_WRI:
		case TO_WTM:
		case TO_ASSIGN:
		case TO_UNASSIGN:
			tape_34xx_delete_sbid_from(request->device, 0);
			break;
		default:
			;
	}
	return TAPE_IO_SUCCESS;
}

static inline int
tape_34xx_erp_failed(struct tape_request *request, int rc)
{
	DBF_EVENT(3, "Error recovery failed for %s (RC=%d)\n",
		  tape_op_verbose[request->op], rc);
	return rc;
}

static inline int
tape_34xx_erp_succeeded(struct tape_request *request)
{
	DBF_EVENT(3, "Error Recovery successful for %s\n",
		  tape_op_verbose[request->op]);
	return tape_34xx_done(request);
}

static inline int
tape_34xx_erp_retry(struct tape_request *request)
{
	DBF_EVENT(3, "xerp retr %s\n", tape_op_verbose[request->op]);
	return TAPE_IO_RETRY;
}

/*
 * This function is called, when no request is outstanding and we get an
 * interrupt
 */
static int
tape_34xx_unsolicited_irq(struct tape_device *device, struct irb *irb)
{
	if (irb->scsw.cmd.dstat == 0x85) { /* READY */
		/* A medium was inserted in the drive. */
		DBF_EVENT(6, "xuud med\n");
		tape_34xx_delete_sbid_from(device, 0);
		tape_34xx_schedule_work(device, TO_MSEN);
	} else {
		DBF_EVENT(3, "unsol.irq! dev end: %08x\n", device->cdev_id);
		PRINT_WARN("Unsolicited IRQ (Device End) caught.\n");
		tape_dump_sense(device, NULL, irb);
	}
	return TAPE_IO_SUCCESS;
}

/*
 * Read Opposite Error Recovery Function:
 * Used, when Read Forward does not work
 */
static int
tape_34xx_erp_read_opposite(struct tape_device *device,
			    struct tape_request *request)
{
	if (request->op == TO_RFO) {
		/*
		 * We did read forward, but the data could not be read
		 * *correctly*. We transform the request to a read backward
		 * and try again.
		 */
		tape_std_read_backward(device, request);
		return tape_34xx_erp_retry(request);
	}
	if (request->op != TO_RBA)
		PRINT_ERR("read_opposite called with state:%s\n",
			  tape_op_verbose[request->op]);
	/*
	 * We tried to read forward and backward, but hat no
	 * success -> failed.
	 */
	return tape_34xx_erp_failed(request, -EIO);
}

static int
tape_34xx_erp_bug(struct tape_device *device, struct tape_request *request,
		  struct irb *irb, int no)
{
	if (request->op != TO_ASSIGN) {
		PRINT_WARN("An unexpected condition #%d was caught in "
			   "tape error recovery.\n", no);
		PRINT_WARN("Please report this incident.\n");
		if (request)
			PRINT_WARN("Operation of tape:%s\n",
				   tape_op_verbose[request->op]);
		tape_dump_sense(device, request, irb);
	}
	return tape_34xx_erp_failed(request, -EIO);
}

/*
 * Handle data overrun between cu and drive. The channel speed might
 * be too slow.
 */
static int
tape_34xx_erp_overrun(struct tape_device *device, struct tape_request *request,
		      struct irb *irb)
{
	if (irb->ecw[3] == 0x40) {
		PRINT_WARN ("Data overrun error between control-unit "
			    "and drive. Use a faster channel connection, "
			    "if possible! \n");
		return tape_34xx_erp_failed(request, -EIO);
	}
	return tape_34xx_erp_bug(device, request, irb, -1);
}

/*
 * Handle record sequence error.
 */
static int
tape_34xx_erp_sequence(struct tape_device *device,
		       struct tape_request *request, struct irb *irb)
{
	if (irb->ecw[3] == 0x41) {
		/*
		 * cu detected incorrect block-id sequence on tape.
		 */
		PRINT_WARN("Illegal block-id sequence found!\n");
		return tape_34xx_erp_failed(request, -EIO);
	}
	/*
	 * Record sequence error bit is set, but erpa does not
	 * show record sequence error.
	 */
	return tape_34xx_erp_bug(device, request, irb, -2);
}

/*
 * This function analyses the tape's sense-data in case of a unit-check.
 * If possible, it tries to recover from the error. Else the user is
 * informed about the problem.
 */
static int
tape_34xx_unit_check(struct tape_device *device, struct tape_request *request,
		     struct irb *irb)
{
	int inhibit_cu_recovery;
	__u8* sense;

	inhibit_cu_recovery = (*device->modeset_byte & 0x80) ? 1 : 0;
	sense = irb->ecw;

#ifdef CONFIG_S390_TAPE_BLOCK
	if (request->op == TO_BLOCK) {
		/*
		 * Recovery for block device requests. Set the block_position
		 * to something invalid and retry.
		 */
		device->blk_data.block_position = -1;
		if (request->retries-- <= 0)
			return tape_34xx_erp_failed(request, -EIO);
		else
			return tape_34xx_erp_retry(request);
	}
#endif

	if (
		sense[0] & SENSE_COMMAND_REJECT &&
		sense[1] & SENSE_WRITE_PROTECT
	) {
		if (
			request->op == TO_DSE ||
			request->op == TO_WRI ||
			request->op == TO_WTM
		) {
			/* medium is write protected */
			return tape_34xx_erp_failed(request, -EACCES);
		} else {
			return tape_34xx_erp_bug(device, request, irb, -3);
		}
	}

	/*
	 * Special cases for various tape-states when reaching