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1 /* init.c - initialize various things */
2 /* $OpenLDAP$ */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4  *
5  * Copyright 1998-2005 The OpenLDAP Foundation.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted only as authorized by the OpenLDAP
10  * Public License.
11  *
12  * A copy of this license is available in the file LICENSE in the
13  * top-level directory of the distribution or, alternatively, at
14  * <http://www.OpenLDAP.org/license.html>.
15  */
16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
17  * All rights reserved.
18  *
19  * Redistribution and use in source and binary forms are permitted
20  * provided that this notice is preserved and that due credit is given
21  * to the University of Michigan at Ann Arbor. The name of the University
22  * may not be used to endorse or promote products derived from this
23  * software without specific prior written permission. This software
24  * is provided ``as is'' without express or implied warranty.
25  */
26
27 #include "portable.h"
28
29 #include <stdio.h>
30
31 #include <ac/socket.h>
32 #include <ac/string.h>
33 #include <ac/time.h>
34
35 #include "slap.h"
36 #include "lber_pvt.h"
37 #ifdef LDAP_SLAPI
38 #include "slapi/slapi.h"
39 #endif
40
41 /*
42  * read-only global variables or variables only written by the listener
43  * thread (after they are initialized) - no need to protect them with a mutex.
44  */
45 int             slap_debug = 0;
46
47 #ifdef LDAP_DEBUG
48 int             ldap_syslog = LDAP_DEBUG_STATS;
49 #else
50 int             ldap_syslog;
51 #endif
52
53 #ifdef LOG_DEBUG
54 int             ldap_syslog_level = LOG_DEBUG;
55 #endif
56
57 BerVarray default_referral = NULL;
58
59 struct berval AllUser = BER_BVC( LDAP_ALL_USER_ATTRIBUTES );
60 struct berval AllOper = BER_BVC( LDAP_ALL_OPERATIONAL_ATTRIBUTES );
61 struct berval NoAttrs = BER_BVC( LDAP_NO_ATTRS );
62
63 /*
64  * global variables that need mutex protection
65  */
66 ldap_pvt_thread_pool_t  connection_pool;
67 int                     connection_pool_max = SLAP_MAX_WORKER_THREADS;
68 #ifndef HAVE_GMTIME_R
69 ldap_pvt_thread_mutex_t gmtime_mutex;
70 #endif
71 #if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
72 ldap_pvt_thread_mutex_t passwd_mutex;
73 #endif
74
75 slap_counters_t                 slap_counters;
76
77 /*
78  * these mutexes must be used when calling the entry2str()
79  * routine since it returns a pointer to static data.
80  */
81 ldap_pvt_thread_mutex_t entry2str_mutex;
82 ldap_pvt_thread_mutex_t replog_mutex;
83
84 static const char* slap_name = NULL;
85 int slapMode = SLAP_UNDEFINED_MODE;
86
87 int
88 slap_init( int mode, const char *name )
89 {
90         int rc;
91         int i;
92
93         assert( mode );
94
95         if ( slapMode != SLAP_UNDEFINED_MODE ) {
96                 Debug( LDAP_DEBUG_ANY,
97                  "%s init: init called twice (old=%d, new=%d)\n",
98                  name, slapMode, mode );
99
100                 return 1;
101         }
102
103         slapMode = mode;
104
105         switch ( slapMode & SLAP_MODE ) {
106         case SLAP_SERVER_MODE:
107         case SLAP_TOOL_MODE:
108                 Debug( LDAP_DEBUG_TRACE,
109                         "%s init: initiated %s.\n",     name,
110                         (mode & SLAP_MODE) == SLAP_TOOL_MODE ? "tool" : "server",
111                         0 );
112
113
114                 slap_name = name;
115
116                 ldap_pvt_thread_pool_init( &connection_pool,
117                                 connection_pool_max, 0);
118
119                 ldap_pvt_thread_mutex_init( &entry2str_mutex );
120                 ldap_pvt_thread_mutex_init( &replog_mutex );
121
122                 ldap_pvt_thread_mutex_init( &slap_counters.sc_sent_mutex );
123                 ldap_pvt_thread_mutex_init( &slap_counters.sc_ops_mutex );
124                 ldap_pvt_mp_init( slap_counters.sc_bytes );
125                 ldap_pvt_mp_init( slap_counters.sc_pdu );
126                 ldap_pvt_mp_init( slap_counters.sc_entries );
127                 ldap_pvt_mp_init( slap_counters.sc_refs );
128
129                 ldap_pvt_mp_init( slap_counters.sc_ops_completed );
130                 ldap_pvt_mp_init( slap_counters.sc_ops_initiated );
131
132 #ifdef SLAPD_MONITOR
133                 for ( i = 0; i < SLAP_OP_LAST; i++ ) {
134                         ldap_pvt_mp_init( slap_counters.sc_ops_initiated_[ i ] );
135                         ldap_pvt_mp_init( slap_counters.sc_ops_completed_[ i ] );
136                 }
137 #endif /* SLAPD_MONITOR */
138
139 #ifndef HAVE_GMTIME_R
140                 ldap_pvt_thread_mutex_init( &gmtime_mutex );
141 #endif
142 #if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
143                 ldap_pvt_thread_mutex_init( &passwd_mutex );
144 #endif
145
146                 rc = slap_sasl_init();
147
148                 if( rc == 0 ) {
149                         rc = backend_init( );
150                 }
151
152                 break;
153
154         default:
155                 Debug( LDAP_DEBUG_ANY,
156                         "%s init: undefined mode (%d).\n", name, mode, 0 );
157
158                 rc = 1;
159                 break;
160         }
161
162         return rc;
163 }
164
165 int slap_startup( Backend *be )
166 {
167         int rc;
168
169         Debug( LDAP_DEBUG_TRACE,
170                 "%s startup: initiated.\n",
171                 slap_name, 0, 0 );
172
173
174         rc = backend_startup( be );
175
176 #ifdef LDAP_SLAPI
177         if( rc == 0 ) {
178                 Slapi_PBlock *pb = slapi_pblock_new();
179
180                 if ( slapi_int_call_plugins( NULL, SLAPI_PLUGIN_START_FN, pb ) < 0 ) {
181                         rc = -1;
182                 }
183                 slapi_pblock_destroy( pb );
184         }
185 #endif /* LDAP_SLAPI */
186
187         return rc;
188 }
189
190 int slap_shutdown( Backend *be )
191 {
192         int rc;
193 #ifdef LDAP_SLAPI
194         Slapi_PBlock *pb;
195 #endif
196
197         Debug( LDAP_DEBUG_TRACE,
198                 "%s shutdown: initiated\n",
199                 slap_name, 0, 0 );
200
201         /* let backends do whatever cleanup they need to do */
202         rc = backend_shutdown( be ); 
203
204 #ifdef LDAP_SLAPI
205         pb = slapi_pblock_new();
206         (void) slapi_int_call_plugins( NULL, SLAPI_PLUGIN_CLOSE_FN, pb );
207         slapi_pblock_destroy( pb );
208 #endif /* LDAP_SLAPI */
209
210         return rc;
211 }
212
213 int slap_destroy(void)
214 {
215         int rc;
216         int i;
217
218         Debug( LDAP_DEBUG_TRACE,
219                 "%s destroy: freeing system resources.\n",
220                 slap_name, 0, 0 );
221
222         if ( default_referral ) {
223                 ber_bvarray_free( default_referral );
224         }
225
226         rc = backend_destroy();
227
228         slap_sasl_destroy();
229
230         entry_destroy();
231
232         switch ( slapMode & SLAP_MODE ) {
233         case SLAP_SERVER_MODE:
234         case SLAP_TOOL_MODE:
235
236                 ldap_pvt_thread_mutex_destroy( &slap_counters.sc_sent_mutex );
237                 ldap_pvt_thread_mutex_destroy( &slap_counters.sc_ops_mutex );
238                 ldap_pvt_mp_clear( slap_counters.sc_bytes );
239                 ldap_pvt_mp_clear( slap_counters.sc_pdu );
240                 ldap_pvt_mp_clear( slap_counters.sc_entries );
241                 ldap_pvt_mp_clear( slap_counters.sc_refs );
242                 ldap_pvt_mp_clear( slap_counters.sc_ops_completed );
243                 ldap_pvt_mp_clear( slap_counters.sc_ops_initiated );
244
245 #ifdef SLAPD_MONITOR
246                 for ( i = 0; i < SLAP_OP_LAST; i++ ) {
247                         ldap_pvt_mp_clear( slap_counters.sc_ops_initiated_[ i ] );
248                         ldap_pvt_mp_clear( slap_counters.sc_ops_completed_[ i ] );
249                 }
250 #endif /* SLAPD_MONITOR */
251                 break;
252
253         default:
254                 Debug( LDAP_DEBUG_ANY,
255                         "slap_destroy(): undefined mode (%d).\n", slapMode, 0, 0 );
256
257                 rc = 1;
258                 break;
259
260         }
261
262         ldap_pvt_thread_destroy();
263
264         /* should destory the above mutex */
265         return rc;
266 }