HP-UX Directory Server 8.1 plug-in reference
Table Of Contents
- HP-UX Directory Server plug-in reference
- Table of Contents
- Part I Introduction to Directory Server plug-ins
- 1 An overview of Directory Server plug-ins
- 2 Writing and compiling plug-ins
- 3 Configuring plug-ins
- 4 An example plug-in
- Part II Writing functions and plug-ins
- 5 Front end API functions
- 5.1 Logging messages
- 5.2 Adding notes to access log entries
- 5.3 Sending data to the client
- 5.4 Determining if an operation was abandoned
- 5.5 Working with entries, attributes, and values
- 5.6 Working with DNs and RDNs
- 5.7 Working with search filters
- 5.8 Checking passwords
- 6 Writing pre- and postoperation plug-ins
- 7 Defining functions for LDAP operations
- 7.1 Specifying start and close functions
- 7.2 Processing an LDAP bind operation
- 7.3 Processing an LDAP unbind operation
- 7.4 Processing an LDAP search operation
- 7.5 Processing an LDAP compare operation
- 7.6 Processing an LDAP add operation
- 7.7 Processing an LDAP modify operation
- 7.8 Processing an LDAP modify RDN operation
- 7.9 Processing an LDAP delete operation
- 7.10 Processing an LDAP abandon operation
- 8 Defining functions for authentication
- 8.1 Understanding authentication methods
- 8.2 How the Directory Server identifies clients
- 8.3 How the authentication process works
- 8.4 Writing your own authentication plug-in
- 8.5 Writing a preoperation bind plug-in
- 8.6 Using SASL with an LDAP client
- 9 Writing entry store/fetch plug-ins
- 10 Writing extended operation plug-ins
- 11 Writing matching rule plug-ins
- 11.1 Understanding matching rules
- 11.2 Understanding matching rule plug-ins
- 11.3 Indexing based on matching rules
- 11.4 Handling extensible match filters
- 11.4.1 How the server handles the filter
- 11.4.2 Query operators in matching rules
- 11.4.3 Writing a filter factory function
- 11.4.4 Getting and setting parameters in filter factory functions
- 11.4.5 Writing a filter index function
- 11.4.6 Getting and setting parameters in filter index functions
- 11.4.7 Writing a filter matching function
- 11.5 Handling sorting by matching rules
- 11.6 Writing a destructor function
- 11.7 Writing an initialization function
- 11.8 Registering matching rule functions
- 11.9 Specifying start and close functions
- 12 Using the custom distribution logic
- 13 Using data interoperability plug-ins
- 5 Front end API functions
- Part III Data type and structure reference
- 14 Data type and structure reference
- 14.1 berval
- 14.2 computed_attr_context
- 14.3 LDAPControl
- 14.4 LDAPMod
- 14.5 mrFilterMatchFn
- 14.6 plugin_referral_entry_callback
- 14.7 plugin_result_callback
- 14.8 plugin_search_entry_callback
- 14.9 send_ldap_referral_fn_ptr_t
- 14.10 send_ldap_result_fn_ptr_t
- 14.11 send_ldap_search_entry_fn_ptr_t
- 14.12 Slapi_Attr
- 14.13 Slapi_Back end
- 14.14 slapi_back end_state_change_fnptr
- 14.15 Slapi_ComponentID
- 14.16 slapi_compute_callback_t
- 14.17 slapi_compute_output_t
- 14.18 Slapi_Connection
- 14.19 Slapi_CondVar
- 14.20 Slapi_Counter
- 14.21 Slapi_DN
- 14.22 Slapi_Entry
- 14.23 Slapi_Filter
- 14.24 Slapi_MatchingRuleEntry
- 14.25 Slapi_Mod
- 14.26 Slapi_Mods
- 14.27 Slapi_Mutex
- 14.28 Slapi_Operation
- 14.29 Slapi_PBlock
- 14.30 Slapi_PluginDesc
- 14.31 Slapi_RDN
- 14.32 Slapi_Task
- 14.33 Slapi_UniqueID
- 14.34 Slapi_Value
- 14.35 Slapi_ValueSet
- 14.36 Synchronization callbacks and data types
- 14 Data type and structure reference
- Part IV Function reference
- 15 Distribution routines
- 16 Functions for access control
- 17 Functions for internal operations and plug-in callback
- 18 Functions for setting internal operation flags
- 19 Functions for handling attributes
- 19.1 slapi_attr_add_value()
- 19.2 slapi_attr_basetype()
- 19.3 slapi_attr_dup()
- 19.4 slapi_attr_first_value()
- 19.5 slapi_attr_flag_is_set()
- 19.6 slapi_attr_free()
- 19.7 slapi_attr_get_bervals_copy()
- 19.8 slapi_attr_get_flags()
- 19.9 slapi_attr_get_numvalues()
- 19.10 slapi_attr_get_oid_copy()
- 19.11 slapi_attr_get_type()
- 19.12 slapi_attr_get_valueset()
- 19.13 slapi_attr_init()
- 19.14 slapi_attr_new()
- 19.15 slapi_attr_next_value()
- 19.16 slapi_attr_set_valueset()
- 19.17 slapi_attr_syntax_normalize()
- 19.18 slapi_attr_type2plugin()
- 19.19 slapi_attr_type_cmp()
- 19.20 slapi_attr_types_equivalent()
- 19.21 slapi_attr_value_cmp()
- 19.22 slapi_attr_value_find()
- 19.23 slapi_valueset_set_from_smod()
- 20 Functions for managing back end operations
- 20.1 slapi_be_addsuffix()
- 20.2 slapi_be_delete_onexit()
- 20.3 slapi_be_exist()
- 20.4 slapi_be_free()
- 20.5 slapi_be_get_instance_info()
- 20.6 slapi_be_get_name()
- 20.7 slapi_be_get_readonly()
- 20.8 slapi_be_getentrypoint()
- 20.9 slapi_be_getsuffix()
- 20.10 slapi_be_gettype()
- 20.11 slapi_be_is_flag_set()
- 20.12 slapi_be_issuffix()
- 20.13 slapi_be_logchanges()
- 20.14 slapi_be_new()
- 20.15 slapi_be_private()
- 20.16 slapi_be_select()
- 20.17 slapi_be_select_by_instance_name()
- 20.18 slapi_be_set_flag()
- 20.19 slapi_be_set_instance_info()
- 20.20 slapi_be_set_readonly()
- 20.21 slapi_be_setentrypoint()
- 20.22 slapi_get_first_back end()
- 20.23 slapi_get_first_suffix()
- 20.24 slapi_get_next_back end()
- 20.25 slapi_get_next_suffix()
- 20.26 slapi_is_root_suffix()
- 20.27 slapi_register_back end_state_change()
- 20.28 slapi_unregister_back end_state_change()
- 21 Functions for dealing with controls
- 22 Functions for syntax plug-ins
- 23 Functions for managing memory
- 24 Functions for managing entries
- 24.1 slapi_entry2str()
- 24.2 slapi_entry2str_with_options()
- 24.3 slapi_entry_add_rdn_values()
- 24.4 slapi_entry_add_string()
- 24.5 slapi_entry_add_value()
- 24.6 slapi_entry_add_values_sv()
- 24.7 slapi_entry_add_valueset()
- 24.8 slapi_entry_alloc()
- 24.9 slapi_entry_apply_mods()
- 24.10 slapi_entry_attr_delete()
- 24.11 slapi_entry_attr_find()
- 24.12 slapi_entry_attr_get_bool()
- 24.13 slapi_entry_attr_get_charptr()
- 24.14 slapi_entry_attr_get_charray()
- 24.15 slapi_entry_attr_get_int()
- 24.16 slapi_entry_attr_get_long()
- 24.17 slapi_entry_attr_get_uint()
- 24.18 slapi_entry_attr_get_ulong()
- 24.19 slapi_entry_attr_has_syntax_value()
- 24.20 slapi_entry_attr_merge_sv()
- 24.21 slapi_entry_attr_replace_sv()
- 24.22 slapi_entry_attr_set_charptr()
- 24.23 slapi_entry_attr_set_int()
- 24.24 slapi_entry_attr_set_long()
- 24.25 slapi_entry_attr_set_uint()
- 24.26 slapi_entry_attr_set_ulong()
- 24.27 slapi_entry_delete_string()
- 24.28 slapi_entry_delete_values_sv()
- 24.29 slapi_entry_dup()
- 24.30 slapi_entry_first_attr()
- 24.31 slapi_entry_free()
- 24.32 slapi_entry_get_dn()
- 24.33 slapi_entry_get_dn_const()
- 24.34 slapi_entry_get_ndn()
- 24.35 slapi_entry_get_sdn()
- 24.36 slapi_entry_get_sdn_const()
- 24.37 slapi_entry_get_uniqueid()
- 24.38 slapi_entry_has_children()
- 24.39 slapi_entry_init()
- 24.40 slapi_entry_merge_values_sv()
- 24.41 slapi_entry_next_attr()
- 24.42 slapi_entry_rdn_values_present()
- 24.43 slapi_entry_schema_check()
- 24.44 slapi_entry_set_dn()
- 24.45 slapi_entry_set_sdn()
- 24.46 slapi_entry_set_uniqueid()
- 24.47 slapi_entry_size()
- 24.48 slapi_is_rootdse()
- 24.49 slapi_str2entry()
- 25 Functions related to entry flags
- 26 Functions for dealing with filters
- 26.1 slapi_filter_apply()
- 26.2 slapi_filter_compare()
- 26.3 slapi_filter_dup()
- 26.4 slapi_filter_free()
- 26.5 slapi_filter_get_attribute_type()
- 26.6 slapi_filter_get_ava()
- 26.7 slapi_filter_get_choice()
- 26.8 slapi_filter_get_subfilt()
- 26.9 slapi_filter_get_type()
- 26.10 slapi_filter_join()
- 26.11 slapi_filter_join_ex()
- 26.12 slapi_filter_list_first()
- 26.13 slapi_filter_list_next()
- 26.14 slapi_filter_test()
- 26.15 slapi_filter_test_ext()
- 26.16 slapi_filter_test_simple()
- 26.17 slapi_find_matching_paren()
- 26.18 slapi_str2filter()
- 26.19 slapi_vattr_filter_test()
- 27 Functions specific to extended operation
- 28 Functions specific to bind methods
- 29 Functions for thread-safe LDAP connections
- 30 Functions for logging
- 31 Functions for counters
- 32 Functions for handling matching rules
- 32.1 slapi_berval_cmp()
- 32.2 slapi_matchingrule_free()
- 32.3 slapi_matchingrule_get()
- 32.4 slapi_matchingrule_is_ordering()
- 32.5 slapi_matchingrule_new()
- 32.6 slapi_matchingrule_register()
- 32.7 slapi_matchingrule_set()
- 32.8 slapi_matchingrule_unregister()
- 32.9 slapi_mr_filter_index()
- 32.10 slapi_mr_indexer_create()
- 33 Functions for LDAPMod manipulation
- 33.1 slapi_entry2mods()
- 33.2 slapi_mod_add_value()
- 33.3 slapi_mod_done()
- 33.4 slapi_mod_dump()
- 33.5 slapi_mod_free()
- 33.6 slapi_mod_get_first_value()
- 33.7 slapi_mod_get_ldapmod_byref()
- 33.8 slapi_mod_get_ldapmod_passout()
- 33.9 slapi_mod_get_next_value()
- 33.10 slapi_mod_get_num_values()
- 33.11 slapi_mod_get_operation()
- 33.12 slapi_mod_get_type()
- 33.13 slapi_mod_init()
- 33.14 slapi_mod_init_byref()
- 33.15 slapi_mod_init_byval()
- 33.16 slapi_mod_init_passin()
- 33.17 slapi_mod_init_valueset_byval()
- 33.18 slapi_mod_isvalid()
- 33.19 slapi_mod_new()
- 33.20 slapi_mod_remove_value()
- 33.21 slapi_mod_set_operation()
- 33.22 slapi_mod_set_type()
- 33.23 slapi_mods2entry()
- 33.24 slapi_mods_add()
- 33.25 slapi_mods_add_ldapmod()
- 33.26 slapi_mods_add_mod_values()
- 33.27 slapi_mods_add_smod()
- 33.28 slapi_mods_add_modbvps()
- 33.29 slapi_mods_add_string()
- 33.30 slapi_mods_done()
- 33.31 slapi_mods_dump()
- 33.32 slapi_mods_free()
- 33.33 slapi_mods_get_first_mod()
- 33.34 slapi_mods_get_first_smod()
- 33.35 slapi_mods_get_ldapmods_byref()
- 33.36 slapi_mods_get_ldapmods_passout()
- 33.37 slapi_mods_get_next_mod()
- 33.38 slapi_mods_get_next_smod()
- 33.39 slapi_mods_get_num_mods()
- 33.40 slapi_mods_init()
- 33.41 slapi_mods_init_byref()
- 33.42 slapi_mods_init_passin()
- 33.43 slapi_mods_insert_after()
- 33.44 slapi_mods_insert_at()
- 33.45 slapi_mods_insert_before()
- 33.46 slapi_mods_insert_smod_at()
- 33.47 slapi_mods_insert_smod_before()
- 33.48 slapi_mods_iterator_backone()
- 33.49 slapi_mods_new()
- 33.50 slapi_mods_remove()
- 34 Functions for monitoring operations
- 35 Functions for managing parameter block
- 36 Functions for handling passwords
- 37 Functions for managing RDNs
- 37.1 slapi_rdn_add()
- 37.2 slapi_rdn_compare()
- 37.3 slapi_rdn_contains()
- 37.4 slapi_rdn_contains_attr()
- 37.5 slapi_rdn_done()
- 37.6 slapi_rdn_free()
- 37.7 slapi_rdn_get_first()
- 37.8 slapi_rdn_get_index()
- 37.9 slapi_rdn_get_index_attr()
- 37.10 slapi_rdn_get_next()
- 37.11 slapi_rdn_get_num_components()
- 37.12 slapi_rdn_get_rdn()
- 37.13 slapi_rdn_get_nrdn()
- 37.14 slapi_rdn_init()
- 37.15 slapi_rdn_init_dn()
- 37.16 slapi_rdn_init_rdn()
- 37.17 slapi_rdn_init_sdn()
- 37.18 slapi_rdn_isempty()
- 37.19 slapi_rdn_new()
- 37.20 slapi_rdn_new_dn()
- 37.21 slapi_rdn_new_rdn()
- 37.22 slapi_rdn_new_sdn()
- 37.23 slapi_rdn_remove()
- 37.24 slapi_rdn_remove_attr()
- 37.25 slapi_rdn_remove_index()
- 37.26 slapi_rdn_set_dn()
- 37.27 slapi_rdn_set_rdn()
- 37.28 slapi_rdn_set_sdn()
- 37.29 slapi_rdn2typeval()
- 38 Functions for managing roles
- 39 Functions for managing DNs
- 39.1 slapi_dn_isroot()
- 39.2 slapi_dn_normalize_case()
- 39.3 slapi_dn_normalize_to_end()
- 39.4 slapi_moddn_get_newdn()
- 39.5 slapi_sdn_add_rdn()
- 39.6 slapi_sdn_compare()
- 39.7 slapi_sdn_copy()
- 39.8 slapi_sdn_done()
- 39.9 slapi_sdn_dup()
- 39.10 slapi_sdn_free()
- 39.11 slapi_sdn_get_back end_parent()
- 39.12 slapi_sdn_get_dn()
- 39.13 slapi_sdn_get_ndn()
- 39.14 slapi_sdn_get_ndn_len()
- 39.15 slapi_sdn_get_parent()
- 39.16 slapi_sdn_get_rdn()
- 39.17 slapi_sdn_is_rdn_component()
- 39.18 slapi_sdn_isempty()
- 39.19 slapi_sdn_isgrandparent()
- 39.20 slapi_sdn_isparent()
- 39.21 slapi_sdn_issuffix()
- 39.22 slapi_sdn_new()
- 39.23 slapi_sdn_new_dn_byref()
- 39.24 slapi_sdn_new_dn_byval()
- 39.25 slapi_sdn_new_dn_passin()
- 39.26 slapi_sdn_new_ndn_byref()
- 39.27 slapi_sdn_new_ndn_byval()
- 39.28 slapi_sdn_scope_test()
- 39.29 slapi_sdn_set_dn_byref()
- 39.30 slapi_sdn_set_dn_byval()
- 39.31 slapi_sdn_set_dn_passin()
- 39.32 slapi_sdn_set_ndn_byref()
- 39.33 slapi_sdn_set_ndn_byval()
- 39.34 slapi_sdn_set_parent()
- 39.35 slapi_sdn_set_rdn()
- 40 Functions for sending entries and results to the client
- 41 Functions related to UTF-8
- 41.1 slapi_has8thBit()
- 41.2 slapi_utf8casecmp()
- 41.3 slapi_UTF8CASECMP()
- 41.4 slapi_utf8ncasecmp()
- 41.5 slapi_UTF8NCASECMP()
- 41.6 slapi_utf8isLower()
- 41.7 slapi_UTF8ISLOWER()
- 41.8 slapi_utf8isUpper()
- 41.9 slapi_UTF8ISUPPER()
- 41.10 slapi_utf8StrToLower()
- 41.11 slapi_UTF8STRTOLOWER()
- 41.12 slapi_utf8StrToUpper()
- 41.13 slapi_UTF8STRTOUPPER()
- 41.14 slapi_utf8ToLower()
- 41.15 slapi_UTF8TOLOWER()
- 41.16 slapi_utf8ToUpper()
- 41.17 slapi_UTF8TOUPPER()
- 42 Functions for handling values
- 42.1 slapi_value_compare()
- 42.2 slapi_value_dup()
- 42.3 slapi_value_free()
- 42.4 slapi_value_get_berval()
- 42.5 slapi_value_get_int()
- 42.6 slapi_value_get_length()
- 42.7 slapi_value_get_long()
- 42.8 slapi_value_get_string()
- 42.9 slapi_value_get_uint()
- 42.10 slapi_value_get_ulong()
- 42.11 slapi_value_init()
- 42.12 slapi_value_init_berval()
- 42.13 slapi_value_init_string()
- 42.14 slapi_value_init_string_passin()
- 42.15 slapi_value_new()
- 42.16 slapi_value_new_berval()
- 42.17 slapi_value_new_string()
- 42.18 slapi_value_new_string_passin()
- 42.19 slapi_value_new_value()
- 42.20 slapi_value_set()
- 42.21 slapi_value_set_berval()
- 42.22 slapi_value_set_int()
- 42.23 slapi_value_set_string()
- 42.24 slapi_value_set_string_passin()
- 42.25 slapi_value_set_value()
- 43 Functions for handling valuesets
- 43.1 slapi_valueset_add_value()
- 43.2 slapi_valueset_add_value_ext()
- 43.3 slapi_valueset_count()
- 43.4 slapi_valueset_done()
- 43.5 slapi_valueset_find()
- 43.6 slapi_valueset_first_value()
- 43.7 slapi_valueset_free()
- 43.8 slapi_valueset_init()
- 43.9 slapi_valueset_new()
- 43.10 slapi_valueset_next_value()
- 43.11 slapi_valueset_set_from_smod()
- 43.12 slapi_valueset_set_valueset()
- 44 Functions specific to virtual attribute service
- 45 Functions for managing locks and synchronization
- 46 Functions for managing computed attributes
- 47 Functions for manipulating bits
- 48 Functions for registering object extensions
- 49 Functions related to data interoperability
- 50 Functions for registering additional plug-ins
- 51 Functions for server tasks
- 51.1 slapi_destroy_task()
- 51.2 slapi_new_task()
- 51.3 slapi_task_begin()
- 51.4 slapi_task_cancel()
- 51.5 slapi_task_dec_refcount()
- 51.6 slapi_task_finish()
- 51.7 slapi_task_get_data()
- 51.8 slapi_task_get_refcount()
- 51.9 slapi_task_get_state()
- 51.10 slapi_task_inc_progress()
- 51.11 slapi_task_inc_refcount()
- 51.12 slapi_task_log_notice()
- 51.13 slapi_task_log_status()
- 51.14 slapi_task_register_handler()
- 51.15 slapi_task_set_data()
- 51.16 slapi_task_set_cancel_fn()
- 51.17 slapi_task_set_destructor_fn()
- 51.18 slapi_task_status_changed()
- Part V Parameter block reference
- 52 Parameters for registering plug-in functions
- 53 Parameters accessible to all plug-ins
- 53.1 Information about the database
- 53.2 Information about the connection
- 53.3 Information about the operation
- 53.4 Information about extended operations
- 53.5 Information about the transaction
- 53.6 Information about access control lists
- 53.7 Notes in the access log
- 53.8 Information about the plug-in
- 53.9 Information about command-line arguments
- 53.10 Information about attributes
- 53.11 Information about targets
- 54 Parameters for the bind function
- 55 Parameters for the search function
- 56 Parameters that convert strings to entries
- 57 Parameters for the add function
- 58 Parameters for the compare function
- 59 Parameters for the delete function
- 60 Parameters for the modify function
- 61 Parameters for the modify RDN function
- 62 Parameters for the abandon function
- 63 Parameters for the matching rule function
- 64 Parameters for LDBM back end pre- and postoperation functions
- 65 Parameters for the database
- 66 Parameters for LDAP functions
- 67 Parameters for error logging
- 68 Parameters for filters
- 69 Parameters for password storage
- 70 Parameters for resource limits
- 71 Parameters for the virtual attribute service
- Part VI Support and other resources
- Glossary
- Index
11 Writing matching rule plug-ins
This chapter explains how to write plug-in functions that handle matching rules.
11.1 Understanding matching rules
A matching rule specifies how one or more attributes of a particular syntax should be compared
against assertion values. For example, a matching rule that specifies a “sound-alike” comparison
attempts to match values that sound like the specified value. Each matching rule is identified by
a unique OID (for example, “1.2.3.4”).
LDAPv3 clients can specify a matching rule as part of a search filter in a search request. This
type of search filter is called an extensible match filter.
11.1.1 Extensible match filters
In an extensible match filter, the client specifies that it wants to use the matching rule to compare
a specified value against the values of entries in the directory. (For example, an extensible match
filter might find all entries in which the sn attribute “sounds like” melon.)
An extensible match filter contains the following information:
• The OID of the matching rule or the attribute type that you want to search (or both).
• The value for which to search.
• A preference indicating whether to also search the attributes in the DN.
For example, if the OID 1.2.3.4 identifies a matching rule that performs “sounds like” matches,
the following extensible match filter attempts to find entries where the mail attribute “sounds
like” moxie: (mail:1.2.3.4:=moxie)
In the search filter, the client can specify the OID that identifies a matching rule, and the attribute
type. This indicates that the value in the filter should be compared against the attribute using
the matching rule.
For example, if the OID 1.2.3.4 specifies a “sound-alike” match and if the string representation
of the search filter is (uid:1.2.3.4:=moxie), it indicates that the client wants to find entries in which
the value of the uid attribute sounds like moxie.
Although the LDAPv3 standard allows clients to omit the OID or the attribute type, at this time,
the HP-UX Directory Server only supports extensible match filters that specify both the OID and
attribute type.
The filter can also specify a preference indicating whether to include DN attributes in the search.
For example, if the OID 1.2.3.4 specifies a “sound-alike” match and if the string representation
of the search filter is (sn:dn:1.2.3.4:=moxie), it indicates that the client wants to find all entries in
which the value of the sn attribute or the attributes in the DN (for example, uid, cn, ou, or o)
sound like moxie.
11.1.2 Extensible match filters in the Directory Server
Directory Server already includes support for certain matching rules, which are used to determine
the collation order and operator for searches of international data.
You can enable the Directory Server to handle your own matching rules for extensible match
searches by defining your own matching rules plug-ins and registering them with the server.
You can also build indexes to improve the performance of search operations that use extended
match filters.
11.1 Understanding matching rules 87