1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
/** BEGIN COPYRIGHT BLOCK
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
* END COPYRIGHT BLOCK **/
/*
* plugin_mr.c - routines for calling matching rule plugins
*/
#include "slap.h"
static oid_item_t* global_mr_oids = NULL;
static PRLock* global_mr_oids_lock = NULL;
static void
init_global_mr_lock()
{
if(global_mr_oids_lock==NULL)
{
global_mr_oids_lock = PR_NewLock();
}
}
struct slapdplugin *
slapi_get_global_mr_plugins()
{
return get_plugin_list(PLUGIN_LIST_MATCHINGRULE);
}
static struct slapdplugin*
plugin_mr_find (char* oid)
{
oid_item_t* i;
init_global_mr_lock();
PR_Lock (global_mr_oids_lock);
i = global_mr_oids;
PR_Unlock (global_mr_oids_lock);
for (; i != NULL; i = i->oi_next)
{
if (!strcasecmp (oid, i->oi_oid))
{
LDAPDebug (LDAP_DEBUG_FILTER, "plugin_mr_find(%s) != NULL\n", oid, 0, 0);
return i->oi_plugin;
}
}
LDAPDebug (LDAP_DEBUG_FILTER, "plugin_mr_find(%s) == NULL\n", oid, 0, 0);
return NULL;
}
static void
plugin_mr_bind (char* oid, struct slapdplugin* plugin)
{
oid_item_t* i = (oid_item_t*) slapi_ch_malloc (sizeof (oid_item_t));
LDAPDebug (LDAP_DEBUG_FILTER, "=> plugin_mr_bind(%s)\n", oid, 0, 0);
init_global_mr_lock();
i->oi_oid = slapi_ch_strdup (oid);
i->oi_plugin = plugin;
PR_Lock (global_mr_oids_lock);
i->oi_next = global_mr_oids;
global_mr_oids = i;
PR_Unlock (global_mr_oids_lock);
LDAPDebug (LDAP_DEBUG_FILTER, "<= plugin_mr_bind\n", 0, 0, 0);
}
int /* an LDAP error code, hopefully LDAP_SUCCESS */
slapi_mr_indexer_create (Slapi_PBlock* opb)
{
int rc;
char* oid;
if (!(rc = slapi_pblock_get (opb, SLAPI_PLUGIN_MR_OID, &oid)))
{
IFP createFn = NULL;
struct slapdplugin* mrp = plugin_mr_find (oid);
if (mrp != NULL)
{
if (!(rc = slapi_pblock_set (opb, SLAPI_PLUGIN, mrp)) &&
!(rc = slapi_pblock_get (opb, SLAPI_PLUGIN_MR_INDEXER_CREATE_FN, &createFn)) &&
createFn != NULL)
{
rc = createFn (opb);
}
}
else
{
/* call each plugin, until one is able to handle this request. */
rc = LDAP_UNAVAILABLE_CRITICAL_EXTENSION;
for (mrp = get_plugin_list(PLUGIN_LIST_MATCHINGRULE); mrp != NULL; mrp = mrp->plg_next)
{
IFP indexFn = NULL;
Slapi_PBlock pb;
memcpy (&pb, opb, sizeof(Slapi_PBlock));
if (!(rc = slapi_pblock_set (&pb, SLAPI_PLUGIN, mrp)) &&
!(rc = slapi_pblock_get (&pb, SLAPI_PLUGIN_MR_INDEXER_CREATE_FN, &createFn)) &&
createFn != NULL &&
!(rc = createFn (&pb)) &&
!(rc = slapi_pblock_get (&pb, SLAPI_PLUGIN_MR_INDEX_FN, &indexFn)) &&
indexFn != NULL)
{
/* Success: this plugin can handle it. */
memcpy (opb, &pb, sizeof(Slapi_PBlock));
plugin_mr_bind (oid, mrp); /* for future reference */
break;
}
}
}
}
return rc;
}
static int
attempt_mr_filter_create (mr_filter_t* f, struct slapdplugin* mrp, Slapi_PBlock* pb)
{
int rc;
IFP mrf_create = NULL;
f->mrf_match = NULL;
pblock_init (pb);
if (!(rc = slapi_pblock_set (pb, SLAPI_PLUGIN, mrp)) &&
!(rc = slapi_pblock_get (pb, SLAPI_PLUGIN_MR_FILTER_CREATE_FN, &mrf_create)) &&
mrf_create != NULL &&
!(rc = slapi_pblock_set (pb, SLAPI_PLUGIN_MR_OID, f->mrf_oid)) &&
!(rc = slapi_pblock_set (pb, SLAPI_PLUGIN_MR_TYPE, f->mrf_type)) &&
!(rc = slapi_pblock_set (pb, SLAPI_PLUGIN_MR_VALUE, &(f->mrf_value))) &&
!(rc = mrf_create (pb)) &&
!(rc = slapi_pblock_get (pb, SLAPI_PLUGIN_MR_FILTER_MATCH_FN, &(f->mrf_match)))) {
if (f->mrf_match == NULL)
{
rc = LDAP_UNAVAILABLE_CRITICAL_EXTENSION;
}
}
return rc;
}
int /* an LDAP error code, hopefully LDAP_SUCCESS */
plugin_mr_filter_create (mr_filter_t* f)
{
int rc = LDAP_UNAVAILABLE_CRITICAL_EXTENSION;
struct slapdplugin* mrp = plugin_mr_find (f->mrf_oid);
Slapi_PBlock pb;
if (mrp != NULL)
{
rc = attempt_mr_filter_create (f, mrp, &pb);
}
else
{
/* call each plugin, until one is able to handle this request. */
for (mrp = get_plugin_list(PLUGIN_LIST_MATCHINGRULE); mrp != NULL; mrp = mrp->plg_next)
{
if (!(rc = attempt_mr_filter_create (f, mrp, &pb)))
{
plugin_mr_bind (f->mrf_oid, mrp); /* for future reference */
break;
}
}
}
if (!rc)
{
/* This plugin has created the desired filter. */
f->mrf_plugin = mrp;
slapi_pblock_get (&pb, SLAPI_PLUGIN_MR_FILTER_INDEX_FN, &(f->mrf_index));
slapi_pblock_get (&pb, SLAPI_PLUGIN_MR_FILTER_REUSABLE, &(f->mrf_reusable));
slapi_pblock_get (&pb, SLAPI_PLUGIN_MR_FILTER_RESET_FN, &(f->mrf_reset));
slapi_pblock_get (&pb, SLAPI_PLUGIN_OBJECT, &(f->mrf_object));
slapi_pblock_get (&pb, SLAPI_PLUGIN_DESTROY_FN, &(f->mrf_destroy));
}
return rc;
}
int /* an LDAP error code, hopefully LDAP_SUCCESS */
slapi_mr_filter_index (Slapi_Filter* f, Slapi_PBlock* pb)
{
int rc = LDAP_UNAVAILABLE_CRITICAL_EXTENSION;
if (f->f_choice == LDAP_FILTER_EXTENDED && f->f_mr.mrf_index != NULL &&
!(rc = slapi_pblock_set (pb, SLAPI_PLUGIN_OBJECT, f->f_mr.mrf_object)))
{
rc = f->f_mr.mrf_index (pb);
}
return rc;
}
|
