From: Howard Chu Date: Mon, 21 Jul 2014 17:46:19 +0000 (-0700) Subject: ITS#6970 fix deadlocks X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=1f8945e8e48515768f4adf9f7af765ded14b6587;p=openldap ITS#6970 fix deadlocks --- diff --git a/contrib/slapd-modules/autogroup/autogroup.c b/contrib/slapd-modules/autogroup/autogroup.c index 14647d8b4b..9001f712ca 100644 --- a/contrib/slapd-modules/autogroup/autogroup.c +++ b/contrib/slapd-modules/autogroup/autogroup.c @@ -156,24 +156,16 @@ autogroup_add_member_to_group( Operation *op, BerValue *dn, BerValue *ndn, autog ** age - the group to which the values will be added */ static int -autogroup_add_member_values_to_group( Operation *op, Entry *e, autogroup_entry_t *age, AttributeDescription *attrdesc ) +autogroup_add_member_values_to_group( Operation *op, struct berval *dn, autogroup_entry_t *age, Attribute *attr ) { slap_overinst *on = (slap_overinst *)op->o_bd->bd_info; Modifications modlist; SlapReply sreply = {REP_RESULT}; - Attribute *attr; slap_callback cb = { NULL, slap_null_cb, NULL, NULL }; Operation o = *op; - assert( e != NULL ); Debug(LDAP_DEBUG_TRACE, "==> autogroup_add_member_values_to_group adding <%s> to <%s>\n", - e->e_name.bv_val, age->age_dn.bv_val, 0); - - attr = attrs_find( e->e_attrs, attrdesc ); - if (!attr) { - // Nothing to add - return LDAP_SUCCESS; - } + dn->bv_val, age->age_dn.bv_val, 0); modlist.sml_op = LDAP_MOD_ADD; modlist.sml_desc = age->age_def->agd_member_ad; @@ -268,24 +260,16 @@ autogroup_delete_member_from_group( Operation *op, BerValue *dn, BerValue *ndn, ** age - the group from which the values will be deleted */ static int -autogroup_delete_member_values_from_group( Operation *op, Entry *e, autogroup_entry_t *age, AttributeDescription *attrdesc ) +autogroup_delete_member_values_from_group( Operation *op, struct berval *dn, autogroup_entry_t *age, Attribute *attr ) { slap_overinst *on = (slap_overinst *)op->o_bd->bd_info; Modifications modlist; SlapReply sreply = {REP_RESULT}; - Attribute *attr; slap_callback cb = { NULL, slap_null_cb, NULL, NULL }; Operation o = *op; - assert( e != NULL ); Debug(LDAP_DEBUG_TRACE, "==> autogroup_delete_member_values_from_group removing <%s> from <%s>\n", - e->e_name.bv_val, age->age_dn.bv_val, 0); - - attr = attrs_find( e->e_attrs, attrdesc ); - if (!attr) { - // Nothing to add - return LDAP_SUCCESS; - } + dn->bv_val, age->age_dn.bv_val, 0); modlist.sml_op = LDAP_MOD_DELETE; modlist.sml_desc = age->age_def->agd_member_ad; @@ -746,7 +730,9 @@ autogroup_add_entry_cb( Operation *op, SlapReply *rs ) rc = test_filter( op, aa->e, agf->agf_filter ); if ( rc == LDAP_COMPARE_TRUE ) { if ( agf->agf_anlist ) { - autogroup_add_member_values_to_group( op, aa->e, age, agf->agf_anlist[0].an_desc ); + Attribute *a = attr_find( aa->e->e_attrs, agf->agf_anlist[0].an_desc ); + if ( a ) + autogroup_add_member_values_to_group( op, &op->o_req_dn, age, a ); } else { autogroup_add_member_to_group( op, &aa->e->e_name, &aa->e->e_nname, age ); } @@ -969,7 +955,7 @@ autogroup_response( Operation *op, SlapReply *rs ) autogroup_filter_t *agf; BerValue new_dn, new_ndn, pdn; Entry *e, *group; - Attribute *a, *ea; + Attribute *a, *ea, *attrs; int is_olddn, is_newdn, is_value_refresh, dn_equal; /* Handle all cases where a refresh of the group is needed */ @@ -1078,16 +1064,17 @@ autogroup_response( Operation *op, SlapReply *rs ) and add it's DN to the group. If 1 is true, and 2 is false, we delete the entry's DN from the group. */ + attrs = attrs_dup( e->e_attrs ); + overlay_entry_release_ov( op, e, 0, on ); for ( age = agi->agi_entry ; age ; age = age->age_next ) { is_olddn = 0; is_newdn = 0; is_value_refresh = 0; - ldap_pvt_thread_mutex_lock( &age->age_mutex ); if ( age->age_filter && age->age_filter->agf_anlist ) { - ea = attrs_find( e->e_attrs, age->age_filter->agf_anlist[0].an_desc ); + ea = attrs_find( attrs, age->age_filter->agf_anlist[0].an_desc ); } else { ea = NULL; @@ -1107,7 +1094,7 @@ autogroup_response( Operation *op, SlapReply *rs ) op->o_tmpfree( new_dn.bv_val, op->o_tmpmemctx ); op->o_tmpfree( new_ndn.bv_val, op->o_tmpmemctx ); - overlay_entry_release_ov( op, e, 0, on ); + attrs_free( attrs ); ldap_pvt_thread_mutex_unlock( &age->age_mutex ); ldap_pvt_thread_mutex_unlock( &agi->agi_mutex ); return SLAP_CB_CONTINUE; @@ -1153,16 +1140,16 @@ autogroup_response( Operation *op, SlapReply *rs ) } if ( is_olddn == 1 && is_newdn == 0 ) { if ( ea ) - autogroup_delete_member_values_from_group( op, e, age, age->age_filter->agf_anlist[0].an_desc ); + autogroup_delete_member_values_from_group( op, &new_dn, age, ea ); else autogroup_delete_member_from_group( op, &op->o_req_dn, &op->o_req_ndn, age ); } else if ( is_olddn == 0 && is_newdn == 1 ) { for ( agf = age->age_filter; agf; agf = agf->agf_next ) { if ( test_filter( op, e, agf->agf_filter ) == LDAP_COMPARE_TRUE ) { - if ( ea ) - autogroup_add_member_values_to_group( op, e, age, age->age_filter->agf_anlist[0].an_desc ); - else + if ( ea ) { + autogroup_add_member_values_to_group( op, &new_dn, age, ea ); + } else autogroup_add_member_to_group( op, &new_dn, &new_ndn, age ); break; } @@ -1189,7 +1176,7 @@ autogroup_response( Operation *op, SlapReply *rs ) op->o_tmpfree( new_dn.bv_val, op->o_tmpmemctx ); op->o_tmpfree( new_ndn.bv_val, op->o_tmpmemctx ); - overlay_entry_release_ov( op, e, 0, on ); + attrs_free( attrs ); ldap_pvt_thread_mutex_unlock( &agi->agi_mutex ); } @@ -1270,7 +1257,7 @@ autogroup_response( Operation *op, SlapReply *rs ) } } - /* When modifing any of the attributes of an entry, we must + /* When modifying any of the attributes of an entry, we must check if the entry is in any of our groups, and if the modified entry maches any of the filters of that group. @@ -1279,6 +1266,8 @@ autogroup_response( Operation *op, SlapReply *rs ) If the entry doesn't exist in a group, but matches a filter, we add it to that group. */ + attrs = attrs_dup( e->e_attrs ); + overlay_entry_release_ov( op, e, 0, on ); for ( age = agi->agi_entry ; age ; age = age->age_next ) { is_olddn = 0; is_newdn = 0; @@ -1287,7 +1276,7 @@ autogroup_response( Operation *op, SlapReply *rs ) ldap_pvt_thread_mutex_lock( &age->age_mutex ); if ( age->age_filter && age->age_filter->agf_anlist ) { - ea = attrs_find( e->e_attrs, age->age_filter->agf_anlist[0].an_desc ); + ea = attrs_find( attrs, age->age_filter->agf_anlist[0].an_desc ); } else { ea = NULL; @@ -1298,7 +1287,7 @@ autogroup_response( Operation *op, SlapReply *rs ) Debug( LDAP_DEBUG_TRACE, "autogroup_response MODIFY cannot get entry for <%s>\n", age->age_dn.bv_val, 0, 0); - overlay_entry_release_ov( op, e, 0, on ); + attrs_free( attrs ); ldap_pvt_thread_mutex_unlock( &age->age_mutex ); ldap_pvt_thread_mutex_unlock( &agi->agi_mutex ); return SLAP_CB_CONTINUE; @@ -1330,13 +1319,13 @@ autogroup_response( Operation *op, SlapReply *rs ) if ( is_olddn == 1 && is_newdn == 0 ) { if(ea) - autogroup_delete_member_values_from_group( op, e, age, age->age_filter->agf_anlist[0].an_desc ); + autogroup_delete_member_values_from_group( op, &op->o_req_dn, age, ea ); else autogroup_delete_member_from_group( op, &op->o_req_dn, &op->o_req_ndn, age ); } else if ( is_olddn == 0 && is_newdn == 1 ) { if(ea) - autogroup_add_member_values_to_group( op, e, age, age->age_filter->agf_anlist[0].an_desc ); + autogroup_add_member_values_to_group( op, &op->o_req_dn, age, ea ); else autogroup_add_member_to_group( op, &op->o_req_dn, &op->o_req_ndn, age ); } @@ -1344,7 +1333,7 @@ autogroup_response( Operation *op, SlapReply *rs ) ldap_pvt_thread_mutex_unlock( &age->age_mutex ); } - overlay_entry_release_ov( op, e, 0, on ); + attrs_free( attrs ); ldap_pvt_thread_mutex_unlock( &agi->agi_mutex ); }