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
5 Front end API functions
The HP-UX Directory Server (Directory Server) provides some general-purpose, front end API
functions that allow you to work with the entries in the Directory Server. This chapter explains
how to use the front end API functions to accomplish various tasks; you can call these functions
in your plug-in to interact with the client (for example, to send results or result codes), log
messages, and work with entries, attributes, and filters. While all the functions described here
must be used in conjunction with other API functions, understanding how these functions work
will help you understand how to program other plug-in API functions.
The front end functions are declared in the slapi-plugin.h header file.
5.1 Logging messages
To write an error message to the error log, call the “slapi_log_error()” function. For example, the
following function call writes a message in the error log:
slapi_log_error( SLAPI_LOG_PLUGIN, "searchdn_preop_search", "*** PREOPER\
ATION SEARCH PLUGIN ***\n");
This call will create the following message in the error log:
[01/Oct/2009:02:24:18 -0700] searchdn_preop_search \ - *** PREOPERATION
SEARCH PLUGIN ***
Make sure that the Directory Server is configured to log messages that have the severity that you
specify (for example, SLAPI_LOG_PLUGIN). For more information, refer to “Setting the log level
of the server”. The “slapi_log_error()” function allows additional parameters to be added to the
function and to format the output, similar to the standard printf() function. This provides a
way to add custom parameters and data to the log output.
5.2 Adding notes to access log entries
When the back end database processes a search operation, it attempts to use indexes to narrow
down the list of candidates matching the search criteria. If the back end is unable to use indexes,
it appends the following string to the access log entry for the search: notes="U"
This note indicates that an unindexed search was performed.
If you are writing your own back end database search function, you can append this note to
access log entries by setting the SLAPI_OPERATION_NOTES parameter to the flag
SLAPI_OP_NOTE_UNINDEXED. This parameter identifies any notes that need to be appended
to access log entries. Currently, SLAPI_OP_NOTE_UNINDEXED is the only value that you can
set for this parameter. In future releases, additional flags will be defined. You will be able to use
bitwise OR combinations of flags to specify different combinations of notes.
The server appends these notes and writes out the access log entries whenever sending a result
or search entry back to the client.
5.3 Sending data to the client
Sometimes you might need to communicate various information directly to the client. This could
occur in the following situations:
• If you need to send a result code to the client (for example, to report an error or a successful
result to an LDAP operation), call the “slapi_send_ldap_result()” function.
• If you are fulfilling a search request and need to send matching entries to the client, call the
“slapi_send_ldap_search_entry()” function for each entry.
• If you need to refer the LDAP request to a different LDAP server, call the
“slapi_send_ldap_referral()” function.
5.1 Logging messages 49