]> git.sur5r.net Git - openldap/blob - servers/slapd/back-ldbm/add.c
Suck in latest changes from -devel. Besides the usually lint removal,
[openldap] / servers / slapd / back-ldbm / add.c
1 /* add.c - ldap ldbm back-end add routine */
2
3 #include "portable.h"
4
5 #include <stdio.h>
6
7 #include <ac/socket.h>
8 #include <ac/string.h>
9
10 #include "slap.h"
11 #include "back-ldbm.h"
12 #include "proto-back-ldbm.h"
13
14 int
15 ldbm_back_add(
16     Backend     *be,
17     Connection  *conn,
18     Operation   *op,
19     Entry       *e
20 )
21 {
22         struct ldbminfo *li = (struct ldbminfo *) be->be_private;
23         char            *dn = NULL, *pdn = NULL;
24         Entry           *p = NULL;
25         int                     rc;
26
27         dn = dn_normalize( strdup( e->e_dn ) );
28
29         Debug(LDAP_DEBUG_ARGS, "==> ldbm_back_add: %s\n", dn, 0, 0);
30
31         if ( ( dn2id( be, dn ) ) != NOID ) {
32                 entry_free( e );
33                 free( dn );
34                 send_ldap_result( conn, op, LDAP_ALREADY_EXISTS, "", "" );
35                 return( -1 );
36         }
37
38         /* XXX race condition here til we cache_add_entry_lock below XXX */
39
40         if ( global_schemacheck && oc_schema_check( e ) != 0 ) {
41                 Debug( LDAP_DEBUG_TRACE, "entry failed schema check\n",
42                         0, 0, 0 );
43
44                 /* XXX this should be ok, no other thread should have access
45                  * because e hasn't been added to the cache yet
46                  */
47                 entry_free( e );
48                 free( dn );
49                 send_ldap_result( conn, op, LDAP_OBJECT_CLASS_VIOLATION, "",
50                     "" );
51                 return( -1 );
52         }
53
54         /*
55          * Try to add the entry to the cache, assign it a new dnid
56          * and mark it locked.  This should only fail if the entry
57          * already exists.
58          */
59
60         e->e_id = next_id( be );
61         if ( cache_add_entry_lock( &li->li_cache, e, ENTRY_STATE_CREATING )
62             != 0 ) {
63                 Debug( LDAP_DEBUG_ANY, "cache_add_entry_lock failed\n", 0, 0,
64                     0 );
65                 next_id_return( be, e->e_id );
66                 
67                 /* XXX this should be ok, no other thread should have access
68                  * because e hasn't been added to the cache yet
69                  */
70                 entry_free( e );
71                 free( dn );
72                 send_ldap_result( conn, op, LDAP_ALREADY_EXISTS, "", "" );
73                 return( -1 );
74         }
75
76         /*
77          * Get the parent dn and see if the corresponding entry exists.
78          * If the parent does not exist, only allow the "root" user to
79          * add the entry.
80          */
81
82         if ( (pdn = dn_parent( be, dn )) != NULL ) {
83                 char *matched;
84                 /* no parent */
85
86                 /* get entry with reader lock */
87                 if ( (p = dn2entry_r( be, pdn, &matched )) == NULL ) {
88                         Debug( LDAP_DEBUG_TRACE, "parent does not exist\n", 0,
89                             0, 0 );
90                         send_ldap_result( conn, op, LDAP_NO_SUCH_OBJECT,
91                             matched, "" );
92
93                         if ( matched != NULL ) {
94                                 free( matched );
95                         }
96
97                         rc = -1;
98                         goto return_results;
99                 }
100
101                 if ( ! access_allowed( be, conn, op, p, "children", NULL,
102                     op->o_dn, ACL_WRITE ) ) {
103                         Debug( LDAP_DEBUG_TRACE, "no access to parent\n", 0,
104                             0, 0 );
105                         send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
106                             "", "" );
107
108                         rc = -1;
109                         goto return_results;
110                 }
111         } else {
112                 if ( ! be_isroot( be, op->o_dn ) ) {
113                         Debug( LDAP_DEBUG_TRACE, "no parent & not root\n", 0,
114                             0, 0 );
115                         send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
116                             "", "" );
117
118                         rc = -1;
119                         goto return_results;
120                 }
121         }
122
123         /*
124          * add it to the id2children index for the parent
125          */
126
127         if ( id2children_add( be, p, e ) != 0 ) {
128                 Debug( LDAP_DEBUG_TRACE, "id2children_add failed\n", 0,
129                     0, 0 );
130                 send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "", "" );
131
132                 rc = -1;
133                 goto return_results;
134         }
135
136         /*
137          * Add the entry to the attribute indexes, then add it to
138          * the id2children index, dn2id index, and the id2entry index.
139          */
140
141         /* attribute indexes */
142         if ( index_add_entry( be, e ) != 0 ) {
143                 Debug( LDAP_DEBUG_TRACE, "index_add_entry failed\n", 0,
144                     0, 0 );
145                 send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "", "" );
146
147                 rc = -1;
148                 goto return_results;
149         }
150
151         /* dn2id index */
152         if ( dn2id_add( be, dn, e->e_id ) != 0 ) {
153                 Debug( LDAP_DEBUG_TRACE, "dn2id_add failed\n", 0,
154                     0, 0 );
155                 send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "", "" );
156
157                 rc = -1;
158                 goto return_results;
159         }
160
161         /* acquire writer lock */
162         entry_rdwr_lock(e, 1);
163
164         /* id2entry index */
165         if ( id2entry_add( be, e ) != 0 ) {
166                 Debug( LDAP_DEBUG_TRACE, "id2entry_add failed\n", 0,
167                     0, 0 );
168                 (void) dn2id_delete( be, dn );
169                 send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, "", "" );
170
171                 rc = -1;
172                 goto return_results;
173         }
174
175         send_ldap_result( conn, op, LDAP_SUCCESS, "", "" );
176         rc = 0;
177
178 return_results:;
179
180         if ( dn != NULL )
181                 free( dn );
182         if ( pdn != NULL )
183                 free( pdn );
184
185         cache_set_state( &li->li_cache, e, 0 );
186
187         /* free entry and writer lock */
188         cache_return_entry_w( &li->li_cache, e ); 
189
190         /* free entry and reader lock */
191         if (p != NULL) {
192                 cache_return_entry_r( &li->li_cache, p ); 
193         }
194
195         return( rc );
196 }