1 /*	$NetBSD: back-monitor.h,v 1.3 2021/08/14 16:15:00 christos Exp $	*/
2 
3 /* back-monitor.h - ldap monitor back-end header file */
4 /* $OpenLDAP$ */
5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
6  *
7  * Copyright 2001-2021 The OpenLDAP Foundation.
8  * Portions Copyright 2001-2003 Pierangelo Masarati.
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted only as authorized by the OpenLDAP
13  * Public License.
14  *
15  * A copy of this license is available in file LICENSE in the
16  * top-level directory of the distribution or, alternatively, at
17  * <http://www.OpenLDAP.org/license.html>.
18  */
19 /* ACKNOWLEDGEMENTS:
20  * This work was initially developed by Pierangelo Masarati for inclusion
21  * in OpenLDAP Software.
22  */
23 
24 #ifndef _BACK_MONITOR_H_
25 #define _BACK_MONITOR_H_
26 
27 #include <ldap_pvt.h>
28 #include <ldap_pvt_thread.h>
29 #include <ldap_avl.h>
30 #include <slap.h>
31 
32 LDAP_BEGIN_DECL
33 
34 /* define if si_ad_labeledURI is removed from slap_schema */
35 #undef MONITOR_DEFINE_LABELEDURI
36 
37 typedef struct monitor_callback_t {
38 	int				(*mc_update)( Operation *op, SlapReply *rs, Entry *e, void *priv );
39 						/* update callback
40 						   for user-defined entries */
41 	int				(*mc_modify)( Operation *op, SlapReply *rs, Entry *e, void *priv );
42 						/* modify callback
43 						   for user-defined entries */
44 	int				(*mc_free)( Entry *e, void **priv );
45 						/* delete callback
46 						   for user-defined entries */
47 	void				(*mc_dispose)( void **priv );
48 						/* dispose callback
49 						   to dispose of the callback
50 						   private data itself */
51 	void				*mc_private;	/* opaque pointer to
52 						   private data */
53 	struct monitor_callback_t	*mc_next;
54 } monitor_callback_t;
55 
56 
57 typedef struct monitor_entry_t {
58 	ldap_pvt_thread_mutex_t	mp_mutex;	/* entry mutex */
59 	Entry			*mp_next;	/* pointer to next sibling */
60 	Entry			*mp_children;	/* pointer to first child */
61 	struct monitor_subsys_t	*mp_info;	/* subsystem info */
62 #define mp_type		mp_info->mss_type
63 	unsigned long		mp_flags;	/* flags */
64 
65 #define	MONITOR_F_NONE		0x0000U
66 #define MONITOR_F_SUB		0x0001U		/* subentry of subsystem */
67 #define MONITOR_F_PERSISTENT	0x0010U		/* persistent entry */
68 #define MONITOR_F_PERSISTENT_CH	0x0020U		/* subsystem generates
69 						   persistent entries */
70 #define MONITOR_F_VOLATILE	0x0040U		/* volatile entry */
71 #define MONITOR_F_VOLATILE_CH	0x0080U		/* subsystem generates
72 						   volatile entries */
73 #define MONITOR_F_EXTERNAL	0x0100U		/* externally added - don't free */
74 /* NOTE: flags with 0xF0000000U mask are reserved for subsystem internals */
75 
76 	struct monitor_callback_t	*mp_cb;		/* callback sequence */
77 	void		*mp_private;
78 } monitor_entry_t;
79 
80 struct entry_limbo_t;			/* in init.c */
81 
82 typedef struct monitor_info_t {
83 
84 	/*
85 	 * Internal data
86 	 */
87 	Avlnode			*mi_cache;
88 	ldap_pvt_thread_mutex_t	mi_cache_mutex;
89 
90 	/*
91 	 * Config parameters
92 	 */
93 	struct berval		mi_startTime;		/* don't free it! */
94 	struct berval		mi_creatorsName;	/* don't free it! */
95 	struct berval		mi_ncreatorsName;	/* don't free it! */
96 
97 	/*
98 	 * Specific schema entities
99 	 */
100 	ObjectClass		*mi_oc_monitor;
101 	ObjectClass		*mi_oc_monitorServer;
102 	ObjectClass		*mi_oc_monitorContainer;
103 	ObjectClass		*mi_oc_monitorCounterObject;
104 	ObjectClass		*mi_oc_monitorOperation;
105 	ObjectClass		*mi_oc_monitorConnection;
106 	ObjectClass		*mi_oc_managedObject;
107 	ObjectClass		*mi_oc_monitoredObject;
108 
109 	AttributeDescription	*mi_ad_monitoredInfo;
110 	AttributeDescription	*mi_ad_managedInfo;
111 	AttributeDescription	*mi_ad_monitorCounter;
112 	AttributeDescription	*mi_ad_monitorOpCompleted;
113 	AttributeDescription	*mi_ad_monitorOpInitiated;
114 	AttributeDescription	*mi_ad_monitorConnectionNumber;
115 	AttributeDescription	*mi_ad_monitorConnectionAuthzDN;
116 	AttributeDescription	*mi_ad_monitorConnectionLocalAddress;
117 	AttributeDescription	*mi_ad_monitorConnectionPeerAddress;
118 	AttributeDescription	*mi_ad_monitorTimestamp;
119 	AttributeDescription	*mi_ad_monitorOverlay;
120 	AttributeDescription	*mi_ad_monitorConnectionProtocol;
121 	AttributeDescription	*mi_ad_monitorConnectionOpsReceived;
122 	AttributeDescription	*mi_ad_monitorConnectionOpsExecuting;
123 	AttributeDescription	*mi_ad_monitorConnectionOpsPending;
124 	AttributeDescription	*mi_ad_monitorConnectionOpsCompleted;
125 	AttributeDescription	*mi_ad_monitorConnectionGet;
126 	AttributeDescription	*mi_ad_monitorConnectionRead;
127 	AttributeDescription	*mi_ad_monitorConnectionWrite;
128 	AttributeDescription	*mi_ad_monitorConnectionMask;
129 	AttributeDescription	*mi_ad_monitorConnectionListener;
130 	AttributeDescription	*mi_ad_monitorConnectionPeerDomain;
131 	AttributeDescription	*mi_ad_monitorConnectionStartTime;
132 	AttributeDescription	*mi_ad_monitorConnectionActivityTime;
133 	AttributeDescription	*mi_ad_monitorIsShadow;
134 	AttributeDescription	*mi_ad_monitorUpdateRef;
135 	AttributeDescription	*mi_ad_monitorRuntimeConfig;
136 	AttributeDescription	*mi_ad_monitorSuperiorDN;
137 
138 	/*
139 	 * Generic description attribute
140 	 */
141 	AttributeDescription	*mi_ad_readOnly;
142 	AttributeDescription	*mi_ad_restrictedOperation;
143 
144 	struct entry_limbo_t	*mi_entry_limbo;
145 } monitor_info_t;
146 
147 /*
148  * DNs
149  */
150 
151 enum {
152 	SLAPD_MONITOR_BACKEND = 0,
153 	SLAPD_MONITOR_CONN,
154 	SLAPD_MONITOR_DATABASE,
155 	SLAPD_MONITOR_LISTENER,
156 	SLAPD_MONITOR_LOG,
157 	SLAPD_MONITOR_OPS,
158 	SLAPD_MONITOR_OVERLAY,
159 	SLAPD_MONITOR_SASL,
160 	SLAPD_MONITOR_SENT,
161 	SLAPD_MONITOR_THREAD,
162 	SLAPD_MONITOR_TIME,
163 	SLAPD_MONITOR_TLS,
164 	SLAPD_MONITOR_RWW,
165 
166 	SLAPD_MONITOR_LAST
167 };
168 
169 #define SLAPD_MONITOR_AT		"cn"
170 
171 #define SLAPD_MONITOR_BACKEND_NAME	"Backends"
172 #define SLAPD_MONITOR_BACKEND_RDN	\
173 	SLAPD_MONITOR_AT "=" SLAPD_MONITOR_BACKEND_NAME
174 #define SLAPD_MONITOR_BACKEND_DN	\
175 	SLAPD_MONITOR_BACKEND_RDN "," SLAPD_MONITOR_DN
176 
177 #define SLAPD_MONITOR_CONN_NAME		"Connections"
178 #define SLAPD_MONITOR_CONN_RDN	\
179 	SLAPD_MONITOR_AT "=" SLAPD_MONITOR_CONN_NAME
180 #define SLAPD_MONITOR_CONN_DN	\
181 	SLAPD_MONITOR_CONN_RDN "," SLAPD_MONITOR_DN
182 
183 #define SLAPD_MONITOR_DATABASE_NAME	"Databases"
184 #define SLAPD_MONITOR_DATABASE_RDN	\
185 	SLAPD_MONITOR_AT "=" SLAPD_MONITOR_DATABASE_NAME
186 #define SLAPD_MONITOR_DATABASE_DN	\
187 	SLAPD_MONITOR_DATABASE_RDN "," SLAPD_MONITOR_DN
188 
189 #define SLAPD_MONITOR_LISTENER_NAME	"Listeners"
190 #define SLAPD_MONITOR_LISTENER_RDN	\
191 	SLAPD_MONITOR_AT "=" SLAPD_MONITOR_LISTENER_NAME
192 #define SLAPD_MONITOR_LISTENER_DN	\
193 	SLAPD_MONITOR_LISTENER_RDN "," SLAPD_MONITOR_DN
194 
195 #define SLAPD_MONITOR_LOG_NAME		"Log"
196 #define SLAPD_MONITOR_LOG_RDN	\
197 	SLAPD_MONITOR_AT "=" SLAPD_MONITOR_LOG_NAME
198 #define SLAPD_MONITOR_LOG_DN	\
199 	SLAPD_MONITOR_LOG_RDN "," SLAPD_MONITOR_DN
200 
201 #define SLAPD_MONITOR_OPS_NAME		"Operations"
202 #define SLAPD_MONITOR_OPS_RDN	\
203 	SLAPD_MONITOR_AT "=" SLAPD_MONITOR_OPS_NAME
204 #define SLAPD_MONITOR_OPS_DN	\
205 	SLAPD_MONITOR_OPS_RDN "," SLAPD_MONITOR_DN
206 
207 #define SLAPD_MONITOR_OVERLAY_NAME	"Overlays"
208 #define SLAPD_MONITOR_OVERLAY_RDN  \
209 	SLAPD_MONITOR_AT "=" SLAPD_MONITOR_OVERLAY_NAME
210 #define SLAPD_MONITOR_OVERLAY_DN   \
211 	SLAPD_MONITOR_OVERLAY_RDN "," SLAPD_MONITOR_DN
212 
213 #define SLAPD_MONITOR_SASL_NAME		"SASL"
214 #define SLAPD_MONITOR_SASL_RDN	\
215 	SLAPD_MONITOR_AT "=" SLAPD_MONITOR_SASL_NAME
216 #define SLAPD_MONITOR_SASL_DN	\
217 	SLAPD_MONITOR_SASL_RDN "," SLAPD_MONITOR_DN
218 
219 #define SLAPD_MONITOR_SENT_NAME		"Statistics"
220 #define SLAPD_MONITOR_SENT_RDN	\
221 	SLAPD_MONITOR_AT "=" SLAPD_MONITOR_SENT_NAME
222 #define SLAPD_MONITOR_SENT_DN	\
223 	SLAPD_MONITOR_SENT_RDN "," SLAPD_MONITOR_DN
224 
225 #define SLAPD_MONITOR_THREAD_NAME	"Threads"
226 #define SLAPD_MONITOR_THREAD_RDN	\
227 	SLAPD_MONITOR_AT "=" SLAPD_MONITOR_THREAD_NAME
228 #define SLAPD_MONITOR_THREAD_DN	\
229 	SLAPD_MONITOR_THREAD_RDN "," SLAPD_MONITOR_DN
230 
231 #define SLAPD_MONITOR_TIME_NAME		"Time"
232 #define SLAPD_MONITOR_TIME_RDN  \
233 	SLAPD_MONITOR_AT "=" SLAPD_MONITOR_TIME_NAME
234 #define SLAPD_MONITOR_TIME_DN   \
235 	SLAPD_MONITOR_TIME_RDN "," SLAPD_MONITOR_DN
236 
237 #define SLAPD_MONITOR_TLS_NAME		"TLS"
238 #define SLAPD_MONITOR_TLS_RDN	\
239 	SLAPD_MONITOR_AT "=" SLAPD_MONITOR_TLS_NAME
240 #define SLAPD_MONITOR_TLS_DN	\
241 	SLAPD_MONITOR_TLS_RDN "," SLAPD_MONITOR_DN
242 
243 #define SLAPD_MONITOR_RWW_NAME		"Waiters"
244 #define SLAPD_MONITOR_RWW_RDN	\
245 	SLAPD_MONITOR_AT "=" SLAPD_MONITOR_RWW_NAME
246 #define SLAPD_MONITOR_RWW_DN	\
247 	SLAPD_MONITOR_RWW_RDN "," SLAPD_MONITOR_DN
248 
249 typedef struct monitor_subsys_t {
250 	char		*mss_name;
251 	struct berval	mss_rdn;
252 	struct berval	mss_dn;
253 	struct berval	mss_ndn;
254 	struct berval	mss_desc[ 3 ];
255 	int		mss_flags;
256 #define MONITOR_F_OPENED	0x10000000U
257 
258 #define MONITOR_HAS_VOLATILE_CH( mp ) \
259 	( ( mp )->mp_flags & MONITOR_F_VOLATILE_CH )
260 #define MONITOR_HAS_CHILDREN( mp ) \
261 	( ( mp )->mp_children || MONITOR_HAS_VOLATILE_CH( mp ) )
262 
263 	/* initialize entry and subentries */
264 	int		( *mss_open )( BackendDB *, struct monitor_subsys_t *ms );
265 	/* destroy structure */
266 	int		( *mss_destroy )( BackendDB *, struct monitor_subsys_t *ms );
267 	/* update existing dynamic entry and subentries */
268 	int		( *mss_update )( Operation *, SlapReply *, Entry * );
269 	/* create new dynamic subentries */
270 	int		( *mss_create )( Operation *, SlapReply *,
271 				struct berval *ndn, Entry *, Entry ** );
272 	/* modify entry and subentries */
273 	int		( *mss_modify )( Operation *, SlapReply *, Entry * );
274 
275 	void		*mss_private;
276 } monitor_subsys_t;
277 
278 extern BackendDB *be_monitor;
279 
280 /* increase this bufsize if entries in string form get too big */
281 #define BACKMONITOR_BUFSIZE	8192
282 
283 typedef int (monitor_cbfunc)( struct berval *ndn, monitor_callback_t *cb,
284 	struct berval *base, int scope, struct berval *filter );
285 
286 typedef int (monitor_cbafunc)( struct berval *ndn, Attribute *a,
287 	monitor_callback_t *cb,
288 	struct berval *base, int scope, struct berval *filter );
289 
290 typedef struct monitor_extra_t {
291 	int (*is_configured)(void);
292 	monitor_subsys_t * (*get_subsys)( const char *name );
293 	monitor_subsys_t * (*get_subsys_by_dn)( struct berval *ndn, int sub );
294 
295 	int (*register_subsys)( monitor_subsys_t *ms );
296 	int (*register_backend)( BackendInfo *bi );
297 	int (*register_database)( BackendDB *be, struct berval *ndn_out );
298 	int (*register_overlay_info)( slap_overinst *on );
299 	int (*register_overlay)( BackendDB *be, slap_overinst *on, struct berval *ndn_out );
300 	int (*register_entry)( Entry *e, monitor_callback_t *cb,
301 		monitor_subsys_t *ms, unsigned long flags );
302 	int (*register_entry_parent)( Entry *e, monitor_callback_t *cb,
303 		monitor_subsys_t *ms, unsigned long flags,
304 		struct berval *base, int scope, struct berval *filter );
305 	monitor_cbafunc *register_entry_attrs;
306 	monitor_cbfunc *register_entry_callback;
307 
308 	int (*unregister_entry)( struct berval *ndn );
309 	monitor_cbfunc *unregister_entry_parent;
310 	monitor_cbafunc *unregister_entry_attrs;
311 	monitor_cbfunc *unregister_entry_callback;
312 	Entry * (*entry_stub)( struct berval *pdn,
313 		struct berval *pndn,
314 		struct berval *rdn,
315 		ObjectClass *oc,
316 		struct berval *create,
317 		struct berval *modify );
318 	monitor_entry_t * (*entrypriv_create)( void );
319 	int (*register_subsys_late)( monitor_subsys_t *ms );
320 	Entry * (*entry_get_unlocked)( struct berval *ndn );
321 } monitor_extra_t;
322 
323 LDAP_END_DECL
324 
325 #include "proto-back-monitor.h"
326 
327 #endif /* _back_monitor_h_ */
328 
329