]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/back-ldbm/add.c
Fix ITS#1991 - referrals with sarch base == target (wasn't sure at first,
[openldap] / servers / slapd / back-ldbm / add.c
index ec7d13f515b54cde50bb6dafd3f15b0c239f4410..65d1d11370d0c9e29b65da6c32f97e17fd5fbb3e 100644 (file)
@@ -27,7 +27,6 @@ ldbm_back_add(
        struct ldbminfo *li = (struct ldbminfo *) be->be_private;
        struct berval   pdn;
        Entry           *p = NULL;
-       int                     rootlock = 0;
        int                     rc;
        ID               id = NOID;
        const char      *text = NULL;
@@ -36,20 +35,19 @@ ldbm_back_add(
        size_t textlen = sizeof textbuf;
 
 #ifdef NEW_LOGGING
-       LDAP_LOG(( "backend", LDAP_LEVEL_ENTRY,"ldbm_back_add: %s\n",
-               e->e_dn ));
+       LDAP_LOG( BACK_LDBM, ENTRY, "ldbm_back_add: %s\n", e->e_dn, 0, 0 );
 #else
        Debug(LDAP_DEBUG_ARGS, "==> ldbm_back_add: %s\n", e->e_dn, 0, 0);
 #endif
 
-       /* nobody else can add until we lock our parent */
-       ldap_pvt_thread_mutex_lock(&li->li_add_mutex);
+       /* grab giant lock for writing */
+       ldap_pvt_thread_rdwr_wlock(&li->li_giant_rwlock);
 
        if ( ( rc = dn2id( be, &e->e_nname, &id ) ) || id != NOID ) {
                /* if (rc) something bad happened to ldbm cache */
-               ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
+               ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
                send_ldap_result( conn, op, 
-                       rc ? LDAP_OPERATIONS_ERROR : LDAP_ALREADY_EXISTS,
+                       rc ? LDAP_OTHER : LDAP_ALREADY_EXISTS,
                        NULL, NULL, NULL, NULL );
                return( -1 );
        }
@@ -57,18 +55,16 @@ ldbm_back_add(
        rc = entry_schema_check( be, e, NULL, &text, textbuf, textlen );
 
        if ( rc != LDAP_SUCCESS ) {
-               ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
+               ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
-                       "ldbm_back_add: entry (%s) failed schema check.\n",
-                       e->e_dn ));
+               LDAP_LOG( BACK_LDBM, ERR, 
+                       "ldbm_back_add: entry (%s) failed schema check.\n", e->e_dn, 0, 0 );
 #else
                Debug( LDAP_DEBUG_TRACE, "entry failed schema check: %s\n",
                        text, 0, 0 );
 #endif
 
-
                send_ldap_result( conn, op, rc,
                        NULL, text, NULL, NULL );
                return( -1 );
@@ -80,11 +76,11 @@ ldbm_back_add(
         * add the entry.
         */
 
-       pdn.bv_val = dn_parent( be, e->e_ndn );
-       if (pdn.bv_val && pdn.bv_val[0])
-               pdn.bv_len = e->e_nname.bv_len - (pdn.bv_val - e->e_ndn);
-       else
-               pdn.bv_len = 0;
+       if ( be_issuffix( be, &e->e_nname ) ) {
+               pdn = slap_empty_bv;
+       } else {
+               dnParent( &e->e_nname, &pdn );
+       }
 
        if( pdn.bv_len ) {
                Entry *matched = NULL;
@@ -94,8 +90,6 @@ ldbm_back_add(
                        char *matched_dn = NULL;
                        BerVarray refs;
 
-                       ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
-
                        if ( matched != NULL ) {
                                matched_dn = ch_strdup( matched->e_dn );
                                refs = is_entry_referral( matched )
@@ -108,10 +102,12 @@ ldbm_back_add(
                                        NULL, &e->e_name, LDAP_SCOPE_DEFAULT );
                        }
 
+                       ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
+
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
-                               "ldbm_back_add: Parent of (%s) does not exist.\n",
-                               e->e_dn ));
+                       LDAP_LOG( BACK_LDBM, ERR, 
+                               "ldbm_back_add: Parent of (%s) does not exist.\n", 
+                               e->e_dn, 0, 0 );
 #else
                        Debug( LDAP_DEBUG_TRACE, "parent does not exist\n",
                                0, 0, 0 );
@@ -127,19 +123,17 @@ ldbm_back_add(
                        return -1;
                }
 
-               /* don't need the add lock anymore */
-               ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
-
                if ( ! access_allowed( be, conn, op, p,
-                       children, NULL, ACL_WRITE ) )
+                       children, NULL, ACL_WRITE, NULL ) )
                {
                        /* free parent and writer lock */
                        cache_return_entry_w( &li->li_cache, p ); 
+                       ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
-                                  "ldbm_back_add: No write access to parent (%s).\n",
-                                  e->e_dn ));
+                       LDAP_LOG( BACK_LDBM, ERR, 
+                               "ldbm_back_add: No write access to parent (%s).\n", 
+                               e->e_dn, 0, 0 );
 #else
                        Debug( LDAP_DEBUG_TRACE, "no write access to parent\n", 0,
                            0, 0 );
@@ -148,7 +142,6 @@ ldbm_back_add(
                        send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
                            NULL, "no write access to parent", NULL, NULL );
 
-
                        return -1;
                }
 
@@ -157,10 +150,11 @@ ldbm_back_add(
 
                        /* free parent and writer lock */
                        cache_return_entry_w( &li->li_cache, p );
+                       ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
-                                  "ldbm_back_add:  Parent is an alias.\n"));
+                       LDAP_LOG(BACK_LDBM, ERR, 
+                               "ldbm_back_add:  Parent is an alias.\n", 0, 0, 0 );
 #else
                        Debug( LDAP_DEBUG_TRACE, "parent is alias\n", 0,
                            0, 0 );
@@ -182,10 +176,11 @@ ldbm_back_add(
 
                        /* free parent and writer lock */
                        cache_return_entry_w( &li->li_cache, p );
+                       ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
-                                  "ldbm_back_add: Parent is referral.\n" ));
+                       LDAP_LOG( BACK_LDBM, ERR,
+                                  "ldbm_back_add: Parent is referral.\n", 0, 0, 0 );
 #else
                        Debug( LDAP_DEBUG_TRACE, "parent is referral\n", 0,
                            0, 0 );
@@ -206,20 +201,20 @@ ldbm_back_add(
 
                /* no parent, must be adding entry to root */
                if ( !be_isroot( be, &op->o_ndn ) ) {
-                       if ( be_issuffix( be, "" ) || be_isupdate( be, &op->o_ndn ) ) {
+                       if ( be_issuffix( be, (struct berval *)&slap_empty_bv ) || be_isupdate( be, &op->o_ndn ) ) {
                                p = (Entry *)&slap_entry_root;
                                
                                rc = access_allowed( be, conn, op, p,
-                                       children, NULL, ACL_WRITE );
+                                       children, NULL, ACL_WRITE, NULL );
                                p = NULL;
                                
                                if ( ! rc ) {
-                                       ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
+                                       ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 
 #ifdef NEW_LOGGING
-                                       LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
+                                       LDAP_LOG( BACK_LDBM, ERR,
                                                "ldbm_back_add: No write "
-                                               "access to parent (\"\").\n" ));
+                                               "access to parent (\"\").\n", 0, 0, 0 );
 #else
                                        Debug( LDAP_DEBUG_TRACE, 
                                                "no write access to parent\n", 
@@ -236,13 +231,13 @@ ldbm_back_add(
                                }
 
                        } else {
-                               ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
+                               ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 
 #ifdef NEW_LOGGING
-                               LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
+                               LDAP_LOG( BACK_LDBM, ERR,
                                           "ldbm_back_add: %s add denied.\n",
                                           pdn.bv_val == NULL ? "suffix" 
-                                          : "entry at root" ));
+                                          : "entry at root", 0, 0 );
 #else
                                Debug( LDAP_DEBUG_TRACE, "%s add denied\n",
                                                pdn.bv_val == NULL ? "suffix" 
@@ -256,14 +251,6 @@ ldbm_back_add(
                                return -1;
                        }
                }
-
-               /*
-                * no parent, acquire the root write lock
-                * and release the add lock.
-                */
-               ldap_pvt_thread_mutex_lock(&li->li_root_mutex);
-               rootlock = 1;
-               ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
        }
 
        if ( next_id( be, &e->e_id ) ) {
@@ -272,20 +259,16 @@ ldbm_back_add(
                        cache_return_entry_w( &li->li_cache, p ); 
                }
 
-               if ( rootlock ) {
-                       /* release root lock */
-                       ldap_pvt_thread_mutex_unlock(&li->li_root_mutex);
-               }
+               ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
-                          "ldbm_back_add: next_id failed.\n" ));
+               LDAP_LOG( BACK_LDBM, ERR,
+                       "ldbm_back_add: next_id failed.\n", 0, 0, 0 );
 #else
                Debug( LDAP_DEBUG_ANY, "ldbm_add: next_id failed\n",
                        0, 0, 0 );
 #endif
 
-
                send_ldap_result( conn, op, LDAP_OTHER,
                        NULL, "next_id add failed", NULL, NULL );
 
@@ -303,14 +286,11 @@ ldbm_back_add(
                        cache_return_entry_w( &li->li_cache, p ); 
                }
 
-               if ( rootlock ) {
-                       /* release root lock */
-                       ldap_pvt_thread_mutex_unlock(&li->li_root_mutex);
-               }
+               ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
 
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
-                          "ldbm_back_add: cache_add_entry_lock failed.\n" ));
+               LDAP_LOG( BACK_LDBM, ERR,
+                       "ldbm_back_add: cache_add_entry_lock failed.\n", 0, 0, 0 );
 #else
                Debug( LDAP_DEBUG_ANY, "cache_add_entry_lock failed\n", 0, 0,
                    0 );
@@ -328,8 +308,8 @@ ldbm_back_add(
        /* attribute indexes */
        if ( index_entry_add( be, e, e->e_attrs ) != LDAP_SUCCESS ) {
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
-                          "ldbm_back_add: index_entry_add failed.\n" ));
+               LDAP_LOG( BACK_LDBM, ERR,
+                       "ldbm_back_add: index_entry_add failed.\n", 0, 0, 0 );
 #else
                Debug( LDAP_DEBUG_TRACE, "index_entry_add failed\n", 0,
                    0, 0 );
@@ -344,8 +324,8 @@ ldbm_back_add(
        /* dn2id index */
        if ( dn2id_add( be, &e->e_nname, e->e_id ) != 0 ) {
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
-                          "ldbm_back_add: dn2id_add failed.\n" ));
+               LDAP_LOG( BACK_LDBM, ERR,
+                       "ldbm_back_add: dn2id_add failed.\n", 0, 0, 0 );
 #else
                Debug( LDAP_DEBUG_TRACE, "dn2id_add failed\n", 0,
                    0, 0 );
@@ -361,8 +341,8 @@ ldbm_back_add(
        /* id2entry index */
        if ( id2entry_add( be, e ) != 0 ) {
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
-                          "ldbm_back_add: id2entry_add failed.\n" ));
+               LDAP_LOG( BACK_LDBM, ERR,
+                          "ldbm_back_add: id2entry_add failed.\n", 0, 0, 0 );
 #else
                Debug( LDAP_DEBUG_TRACE, "id2entry_add failed\n", 0,
                    0, 0 );
@@ -392,15 +372,14 @@ return_results:;
                cache_return_entry_w( &li->li_cache, p ); 
        }
 
-       if ( rootlock ) {
-               /* release root lock */
-               ldap_pvt_thread_mutex_unlock(&li->li_root_mutex);
-       }
-
        if ( rc ) {
-               /* in case of error, writer lock is freed 
-                * and entry's private data is destroyed */
+               /*
+                * in case of error, writer lock is freed 
+                * and entry's private data is destroyed.
+                * otherwise, this is done when entry is released
+                */
                cache_return_entry_w( &li->li_cache, e );
+               ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
        }
 
        return( rc );