static int mod_namingconflict_attr (const char *uniqueid, const Slapi_DN *entrysdn, const Slapi_DN *conflictsdn, CSN *opcsn) { Slapi_Mods smods; char buf[BUFSIZ]; int op_result; PR_snprintf (buf, sizeof(buf), "%s %s", REASON_ANNOTATE_DN, slapi_sdn_get_dn(conflictsdn)); slapi_mods_init (&smods, 2); if ( strncmp (slapi_sdn_get_dn(entrysdn), SLAPI_ATTR_UNIQUEID, strlen(SLAPI_ATTR_UNIQUEID)) != 0 ) { slapi_mods_add (&smods, LDAP_MOD_ADD, ATTR_NSDS5_REPLCONFLICT, strlen(buf), buf); } else { /* * If the existing entry is already a naming conflict loser, * the following replace operation should result in the * replace of the ATTR_NSDS5_REPLCONFLICT index as well. */ slapi_mods_add (&smods, LDAP_MOD_REPLACE, ATTR_NSDS5_REPLCONFLICT, strlen(buf), buf); } op_result = urp_fixup_modify_entry (uniqueid, entrysdn, opcsn, &smods, 0); slapi_mods_done (&smods); return op_result; }
static int set_retry_cnt_and_time ( Slapi_PBlock *pb, int count, time_t cur_time ) { const char *dn = NULL; Slapi_DN *sdn = NULL; Slapi_Mods smods; time_t reset_time; char *timestr; passwdPolicy *pwpolicy = NULL; int rc = 0; slapi_pblock_get( pb, SLAPI_TARGET_SDN, &sdn ); dn = slapi_sdn_get_dn(sdn); pwpolicy = new_passwdPolicy(pb, dn); slapi_mods_init(&smods, 0); reset_time = time_plus_sec ( cur_time, pwpolicy->pw_resetfailurecount ); timestr = format_genTime ( reset_time ); slapi_mods_add_string(&smods, LDAP_MOD_REPLACE, "retryCountResetTime", timestr); slapi_ch_free((void **)×tr); rc = set_retry_cnt_mods(pb, &smods, count); pw_apply_mods(sdn, &smods); slapi_mods_done(&smods); return rc; }
static int upgrade_db_3x_40(backend *be) { struct ldbminfo *li = (struct ldbminfo *) be->be_database->plg_private; int ret = 0; back_txn txn; static char* indexes_modified[] = {"parentid", "numsubordinates", NULL}; LDAPDebug( LDAP_DEBUG_ANY, "WARNING: Detected a database older than this server, upgrading data...\n",0,0,0); dblayer_txn_init(li,&txn); ret = dblayer_txn_begin(li,NULL,&txn); if (0 != ret) { ldbm_nasty(filename,69,ret); goto error; } ret = indexfile_delete_all_keys(be,"parentid",&txn); if (0 != ret) { ldbm_nasty(filename,70,ret); goto error; } { Slapi_Mods smods; slapi_mods_init(&smods,1); /* Mods are to remove the hassubordinates attribute */ slapi_mods_add(&smods, LDAP_MOD_DELETE, "hassubordinates", 0, NULL); /* This function takes care of generating the subordinatecount attribute and indexing it */ ret = indexfile_primary_modifyall(be,slapi_mods_get_ldapmods_byref(&smods),indexes_modified,&txn); slapi_mods_done(&smods); } if (0 != ret) { ldbm_nasty(filename,61,ret); } error: if (0 != ret ) { dblayer_txn_abort(li,&txn); } else { ret = dblayer_txn_commit(li,&txn); if (0 != ret) { ldbm_nasty(filename,60,ret); } else { /* Now update DBVERSION file */ } } if (0 == ret) { LDAPDebug( LDAP_DEBUG_ANY, "...upgrade complete.\n",0,0,0); } else { LDAPDebug( LDAP_DEBUG_ANY, "ERROR: Attempt to upgrade the older database FAILED.\n",0,0,0); } return ret; }
static int set_retry_cnt ( Slapi_PBlock *pb, int count) { Slapi_DN *sdn = NULL; Slapi_Mods smods; int rc = 0; slapi_pblock_get( pb, SLAPI_TARGET_SDN, &sdn ); slapi_mods_init(&smods, 0); rc = set_retry_cnt_mods(pb, &smods, count); pw_apply_mods(sdn, &smods); slapi_mods_done(&smods); return rc; }
static int del_replconflict_attr (const Slapi_Entry *entry, CSN *opcsn, int opflags) { Slapi_Attr *attr; int op_result = 0; if (slapi_entry_attr_find (entry, ATTR_NSDS5_REPLCONFLICT, &attr) == 0) { Slapi_Mods smods; const char *uniqueid; const Slapi_DN *entrysdn; uniqueid = slapi_entry_get_uniqueid (entry); entrysdn = slapi_entry_get_sdn_const (entry); slapi_mods_init (&smods, 2); slapi_mods_add (&smods, LDAP_MOD_DELETE, ATTR_NSDS5_REPLCONFLICT, 0, NULL); op_result = urp_fixup_modify_entry (uniqueid, entrysdn, opcsn, &smods, opflags); slapi_mods_done (&smods); } return op_result; }
/* * op_shared_rename() -- common frontend code for modDN operations. * * Beware: this function resets the following pblock elements that were * set by the caller: * * SLAPI_MODRDN_TARGET_SDN * SLAPI_MODRDN_NEWRDN * SLAPI_MODRDN_NEWSUPERIOR_SDN */ static void op_shared_rename(Slapi_PBlock *pb, int passin_args) { char *dn, *newrdn, *newdn = NULL; const char *newsuperior; char **rdns; int deloldrdn; Slapi_Backend *be = NULL; Slapi_DN *origsdn = NULL; Slapi_Mods smods; int internal_op, repl_op, lastmod; Slapi_Operation *operation; Slapi_Entry *referral; char errorbuf[BUFSIZ]; int err; char *proxydn = NULL; char *proxystr = NULL; int proxy_err = LDAP_SUCCESS; char *errtext = NULL; Slapi_DN *sdn = NULL; Slapi_DN *newsuperiorsdn = NULL; slapi_pblock_get(pb, SLAPI_ORIGINAL_TARGET, &dn); slapi_pblock_get(pb, SLAPI_MODRDN_NEWRDN, &newrdn); slapi_pblock_get(pb, SLAPI_MODRDN_NEWSUPERIOR_SDN, &newsuperiorsdn); slapi_pblock_get(pb, SLAPI_MODRDN_DELOLDRDN, &deloldrdn); slapi_pblock_get(pb, SLAPI_IS_REPLICATED_OPERATION, &repl_op); slapi_pblock_get (pb, SLAPI_OPERATION, &operation); slapi_pblock_get(pb, SLAPI_MODRDN_TARGET_SDN, &origsdn); internal_op= operation_is_flag_set(operation, OP_FLAG_INTERNAL); /* * If ownership has not been passed to this function, we replace the * string input fields within the pblock with strdup'd copies. Why? * Because some pre- and post-op plugins may change them, and the * convention is that plugins should place a malloc'd string in the * pblock. Therefore, we need to be able to retrieve and free them * later. But the callers of the internal modrdn calls are promised * that we will not free these parameters... so if passin_args is * zero, we need to make copies. * * In the case of SLAPI_MODRDN_TARGET_SDN and SLAPI_MODRDN_NEWSUPERIOR_SDN, * we replace the existing values with normalized values (because plugins * expect these DNs to be normalized). */ if (NULL == origsdn) { sdn = slapi_sdn_new_dn_byval(dn); slapi_pblock_set(pb, SLAPI_MODRDN_TARGET_SDN, sdn); } if (passin_args) { if (NULL == sdn) { /* origsdn is not NULL, so use it. */ sdn = origsdn; } } else { if (NULL == sdn) { sdn = slapi_sdn_dup(origsdn); } newrdn = slapi_ch_strdup(newrdn); newsuperiorsdn = slapi_sdn_dup(newsuperiorsdn); slapi_pblock_set(pb, SLAPI_MODRDN_TARGET_SDN, sdn); slapi_pblock_set(pb, SLAPI_MODRDN_NEWRDN, (void *)newrdn); slapi_pblock_set(pb, SLAPI_MODRDN_NEWSUPERIOR_SDN, newsuperiorsdn); } /* normdn = slapi_sdn_get_dn(sdn); */ newsuperior = slapi_sdn_get_dn(newsuperiorsdn); /* get the proxy auth dn if the proxy auth control is present */ proxy_err = proxyauth_get_dn(pb, &proxydn, &errtext); /* * first, log the operation to the access log, * then check rdn and newsuperior, * and - if applicable - log reason of any error to the errors log */ if (operation_is_flag_set(operation,OP_FLAG_ACTION_LOG_ACCESS)) { if (proxydn) { proxystr = slapi_ch_smprintf(" authzid=\"%s\"", proxydn); } if ( !internal_op ) { slapi_log_access(LDAP_DEBUG_STATS, "conn=%" NSPRIu64 " op=%d MODRDN dn=\"%s\" newrdn=\"%s\" newsuperior=\"%s\"%s\n", pb->pb_conn->c_connid, pb->pb_op->o_opid, dn, newrdn ? newrdn : "(null)", newsuperior ? newsuperior : "(null)", proxystr ? proxystr : ""); } else { slapi_log_access(LDAP_DEBUG_ARGS, "conn=%s op=%d MODRDN dn=\"%s\" newrdn=\"%s\" newsuperior=\"%s\"%s\n", LOG_INTERNAL_OP_CON_ID, LOG_INTERNAL_OP_OP_ID, dn, newrdn ? newrdn : "(null)", newsuperior ? newsuperior : "(null)", proxystr ? proxystr : ""); } } /* If we encountered an error parsing the proxy control, return an error * to the client. We do this here to ensure that we log the operation first. */ if (proxy_err != LDAP_SUCCESS) { send_ldap_result(pb, proxy_err, NULL, errtext, 0, NULL); goto free_and_return_nolock; } /* check that the rdn is formatted correctly */ if ((rdns = slapi_ldap_explode_rdn(newrdn, 0)) == NULL) { if ( !internal_op ) { slapi_log_error(SLAPI_LOG_ARGS, NULL, "conn=%" NSPRIu64 " op=%d MODRDN invalid new RDN (\"%s\")\n", pb->pb_conn->c_connid, pb->pb_op->o_opid, (NULL == newrdn) ? "(null)" : newrdn); } else { slapi_log_error(SLAPI_LOG_ARGS, NULL, "conn=%s op=%d MODRDN invalid new RDN (\"%s\")\n", LOG_INTERNAL_OP_CON_ID, LOG_INTERNAL_OP_OP_ID, (NULL == newrdn) ? "(null)" : newrdn); } send_ldap_result(pb, LDAP_INVALID_DN_SYNTAX, NULL, "invalid RDN", 0, NULL); goto free_and_return_nolock; } else { slapi_ldap_value_free(rdns); } /* check if created attributes are used in the new RDN */ /* check_rdn_for_created_attrs ignores the cases */ if (check_rdn_for_created_attrs((const char *)newrdn)) { send_ldap_result(pb, LDAP_INVALID_DN_SYNTAX, NULL, "invalid attribute in RDN", 0, NULL); goto free_and_return_nolock; } /* check that the dn is formatted correctly */ err = slapi_dn_syntax_check(pb, newsuperior, 1); if (err) { LDAPDebug0Args(LDAP_DEBUG_ARGS, "Syntax check of newSuperior failed\n"); if (!internal_op) { slapi_log_error(SLAPI_LOG_ARGS, NULL, "conn=%" NSPRIu64 " op=%d MODRDN invalid new superior (\"%s\")", pb->pb_conn->c_connid, pb->pb_op->o_opid, newsuperior ? newsuperior : "(null)"); } else { slapi_log_error(SLAPI_LOG_ARGS, NULL, "conn=%s op=%d MODRDN invalid new superior (\"%s\")", LOG_INTERNAL_OP_CON_ID, LOG_INTERNAL_OP_OP_ID, newsuperior ? newsuperior : "(null)"); } send_ldap_result(pb, LDAP_INVALID_DN_SYNTAX, NULL, "newSuperior does not look like a DN", 0, NULL); goto free_and_return_nolock; } if (newsuperior != NULL) { LDAPDebug(LDAP_DEBUG_ARGS, "do_moddn: newsuperior (%s)\n", newsuperior, 0, 0); } /* target spec is used to decide which plugins are applicable for the operation */ operation_set_target_spec (pb->pb_op, sdn); /* * Construct the new DN (code sdn from backend * and modified to handle newsuperior) */ newdn = slapi_moddn_get_newdn(sdn, newrdn, newsuperior); /* * We could be serving multiple database backends. Select the * appropriate one, or send a referral to our "referral server" * if we don't hold it. */ /* slapi_mapping_tree_select_and_check ignores the case of newdn * which is generated using newrdn above. */ if ((err = slapi_mapping_tree_select_and_check(pb, newdn, &be, &referral, errorbuf)) != LDAP_SUCCESS) { send_ldap_result(pb, err, NULL, errorbuf, 0, NULL); goto free_and_return_nolock; } if (referral) { int managedsait; slapi_pblock_get(pb, SLAPI_MANAGEDSAIT, &managedsait); if (managedsait) { send_ldap_result(pb, LDAP_UNWILLING_TO_PERFORM, NULL, "cannot update referral", 0, NULL); slapi_entry_free(referral); goto free_and_return; } send_referrals_from_entry(pb,referral); slapi_entry_free(referral); goto free_and_return; } slapi_pblock_set(pb, SLAPI_BACKEND, be); /* can get lastmod only after backend is selected */ slapi_pblock_get(pb, SLAPI_BE_LASTMOD, &lastmod); /* if it is a replicated operation - leave lastmod attributes alone */ slapi_mods_init (&smods, 2); if (!repl_op && lastmod) { modify_update_last_modified_attr(pb, &smods); slapi_pblock_set(pb, SLAPI_MODIFY_MODS, (void*)slapi_mods_get_ldapmods_passout(&smods)); } else { slapi_mods_done (&smods); } /* * call the pre-modrdn plugins. if they succeed, call * the backend modrdn function. then call the * post-modrdn plugins. */ if (plugin_call_plugins(pb, internal_op ? SLAPI_PLUGIN_INTERNAL_PRE_MODRDN_FN : SLAPI_PLUGIN_PRE_MODRDN_FN) == 0) { int rc= LDAP_OPERATIONS_ERROR; slapi_pblock_set(pb, SLAPI_PLUGIN, be->be_database); set_db_default_result_handlers(pb); if (be->be_modrdn != NULL) { if ((rc = (*be->be_modrdn)(pb)) == 0) { Slapi_Entry *pse; Slapi_Entry *ecopy; /* we don't perform acl check for internal operations */ /* dont update aci store for remote acis */ if ((!internal_op) && (!slapi_be_is_flag_set(be,SLAPI_BE_FLAG_REMOTE_DATA))) plugin_call_acl_mods_update (pb, SLAPI_OPERATION_MODRDN); if (operation_is_flag_set(operation,OP_FLAG_ACTION_LOG_AUDIT)) write_audit_log_entry(pb); /* Record the operation in the audit log */ slapi_pblock_get(pb, SLAPI_ENTRY_POST_OP, &pse); slapi_pblock_get(pb, SLAPI_ENTRY_PRE_OP, &ecopy); /* GGOODREPL persistent search system needs the changenumber, oops. */ do_ps_service(pse, ecopy, LDAP_CHANGETYPE_MODDN, 0); } } else { send_ldap_result(pb, LDAP_UNWILLING_TO_PERFORM, NULL, "Function not implemented", 0, NULL); } slapi_pblock_set(pb, SLAPI_PLUGIN_OPRETURN, &rc); plugin_call_plugins(pb, internal_op ? SLAPI_PLUGIN_INTERNAL_POST_MODRDN_FN : SLAPI_PLUGIN_POST_MODRDN_FN); } free_and_return: if (be) slapi_be_Unlock(be); free_and_return_nolock: { /* Free up everything left in the PBlock */ Slapi_Entry *pse; Slapi_Entry *ecopy; LDAPMod **mods; char *s; if (passin_args) { if (NULL == origsdn) { slapi_sdn_free(&sdn); } } else { slapi_pblock_get(pb, SLAPI_MODRDN_TARGET_SDN, &sdn); slapi_sdn_free(&sdn); /* get newrdn to free the string */ slapi_pblock_get(pb, SLAPI_MODRDN_NEWRDN, &newrdn); slapi_ch_free_string(&newrdn); slapi_pblock_get(pb, SLAPI_MODRDN_NEWSUPERIOR_SDN, &newsuperiorsdn); slapi_sdn_free(&newsuperiorsdn); } slapi_ch_free_string(&newdn); slapi_pblock_get(pb, SLAPI_ENTRY_PRE_OP, &ecopy); slapi_entry_free(ecopy); slapi_pblock_get(pb, SLAPI_ENTRY_POST_OP, &pse); slapi_entry_free(pse); slapi_pblock_get( pb, SLAPI_MODIFY_MODS, &mods ); ldap_mods_free( mods, 1 ); slapi_ch_free_string(&proxydn); slapi_ch_free_string(&proxystr); slapi_pblock_get(pb, SLAPI_URP_NAMING_COLLISION_DN, &s); slapi_ch_free((void **)&s); } }
int ldbm_back_modify( Slapi_PBlock *pb ) { backend *be; ldbm_instance *inst = NULL; struct ldbminfo *li; struct backentry *e = NULL, *ec = NULL; struct backentry *original_entry = NULL, *tmpentry = NULL; Slapi_Entry *postentry = NULL; LDAPMod **mods = NULL; LDAPMod **mods_original = NULL; Slapi_Mods smods = {0}; back_txn txn; back_txnid parent_txn; modify_context ruv_c = {0}; int ruv_c_init = 0; int retval = -1; char *msg; char *errbuf = NULL; int retry_count = 0; int disk_full = 0; int ldap_result_code= LDAP_SUCCESS; char *ldap_result_message= NULL; int rc = 0; Slapi_Operation *operation; entry_address *addr; int is_fixup_operation= 0; int is_ruv = 0; /* True if the current entry is RUV */ CSN *opcsn = NULL; int repl_op; int opreturn = 0; int mod_count = 0; int not_an_error = 0; int fixup_tombstone = 0; int ec_locked = 0; int result_sent = 0; slapi_pblock_get( pb, SLAPI_BACKEND, &be); slapi_pblock_get( pb, SLAPI_PLUGIN_PRIVATE, &li ); slapi_pblock_get( pb, SLAPI_TARGET_ADDRESS, &addr ); slapi_pblock_get( pb, SLAPI_MODIFY_MODS, &mods ); slapi_pblock_get( pb, SLAPI_TXN, (void**)&parent_txn ); slapi_pblock_get( pb, SLAPI_IS_REPLICATED_OPERATION, &repl_op); slapi_pblock_get( pb, SLAPI_OPERATION, &operation ); fixup_tombstone = operation_is_flag_set(operation, OP_FLAG_TOMBSTONE_FIXUP); dblayer_txn_init(li,&txn); /* must do this before first goto error_return */ /* the calls to perform searches require the parent txn if any so set txn to the parent_txn until we begin the child transaction */ if (parent_txn) { txn.back_txn_txn = parent_txn; } else { parent_txn = txn.back_txn_txn; slapi_pblock_set( pb, SLAPI_TXN, parent_txn ); } if (NULL == operation) { ldap_result_code = LDAP_OPERATIONS_ERROR; goto error_return; } is_fixup_operation = operation_is_flag_set(operation, OP_FLAG_REPL_FIXUP); is_ruv = operation_is_flag_set(operation, OP_FLAG_REPL_RUV); inst = (ldbm_instance *) be->be_instance_info; if (NULL == addr) { goto error_return; } if (inst && inst->inst_ref_count) { slapi_counter_increment(inst->inst_ref_count); } else { slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify", "Instance \"%s\" does not exist.\n", inst ? inst->inst_name : "null instance"); goto error_return; } /* no need to check the dn syntax as this is a replicated op */ if(!repl_op){ ldap_result_code = slapi_dn_syntax_check(pb, slapi_sdn_get_dn(addr->sdn), 1); if (ldap_result_code) { ldap_result_code = LDAP_INVALID_DN_SYNTAX; slapi_pblock_get(pb, SLAPI_PB_RESULT_TEXT, &ldap_result_message); goto error_return; } } /* The dblock serializes writes to the database, * which reduces deadlocking in the db code, * which means that we run faster. * * But, this lock is re-enterant for the fixup * operations that the URP code in the Replication * plugin generates. * * SERIALLOCK is moved to dblayer_txn_begin along with exposing be * transaction to plugins (see slapi_back_transaction_* APIs). * if(SERIALLOCK(li) && !operation_is_flag_set(operation,OP_FLAG_REPL_FIXUP)) { dblayer_lock_backend(be); dblock_acquired= 1; } */ if ( MANAGE_ENTRY_BEFORE_DBLOCK(li)) { /* find and lock the entry we are about to modify */ if (fixup_tombstone) { e = find_entry2modify_only_ext( pb, be, addr, TOMBSTONE_INCLUDED, &txn, &result_sent ); } else { e = find_entry2modify( pb, be, addr, &txn, &result_sent ); } if (e == NULL) { ldap_result_code = -1; goto error_return; /* error result sent by find_entry2modify() */ } } txn.back_txn_txn = NULL; /* ready to create the child transaction */ for (retry_count = 0; retry_count < RETRY_TIMES; retry_count++) { int cache_rc = 0; int new_mod_count = 0; if (txn.back_txn_txn && (txn.back_txn_txn != parent_txn)) { /* don't release SERIAL LOCK */ dblayer_txn_abort_ext(li, &txn, PR_FALSE); slapi_pblock_set(pb, SLAPI_TXN, parent_txn); /* * Since be_txn_preop functions could have modified the entry/mods, * We need to grab the current mods, free them, and restore the * originals. Same thing for the entry. */ slapi_pblock_get(pb, SLAPI_MODIFY_MODS, &mods); ldap_mods_free(mods, 1); slapi_pblock_set(pb, SLAPI_MODIFY_MODS, copy_mods(mods_original)); /* reset ec set cache in id2entry_add_ext */ if (ec) { /* must duplicate ec before returning it to cache, * which could free the entry. */ if ((tmpentry = backentry_dup(original_entry?original_entry:ec)) == NULL) { ldap_result_code= LDAP_OPERATIONS_ERROR; goto error_return; } if (cache_is_in_cache(&inst->inst_cache, ec)) { CACHE_REMOVE(&inst->inst_cache, ec); } CACHE_RETURN(&inst->inst_cache, &ec); slapi_pblock_set( pb, SLAPI_MODIFY_EXISTING_ENTRY, original_entry->ep_entry ); ec = original_entry; original_entry = tmpentry; tmpentry = NULL; } if (ruv_c_init) { /* reset the ruv txn stuff */ modify_term(&ruv_c, be); ruv_c_init = 0; } slapi_log_err(SLAPI_LOG_BACKLDBM, "ldbm_back_modify", "Modify Retrying Transaction\n"); #ifndef LDBM_NO_BACKOFF_DELAY { PRIntervalTime interval; interval = PR_MillisecondsToInterval(slapi_rand() % 100); DS_Sleep(interval); } #endif } /* Nothing above here modifies persistent store, everything after here is subject to the transaction */ /* dblayer_txn_begin holds SERIAL lock, * which should be outside of locking the entry (find_entry2modify) */ if (0 == retry_count) { /* First time, hold SERIAL LOCK */ retval = dblayer_txn_begin(be, parent_txn, &txn); } else { /* Otherwise, no SERIAL LOCK */ retval = dblayer_txn_begin_ext(li, parent_txn, &txn, PR_FALSE); } if (0 != retval) { if (LDBM_OS_ERR_IS_DISKFULL(retval)) disk_full = 1; ldap_result_code= LDAP_OPERATIONS_ERROR; goto error_return; } /* stash the transaction for plugins */ slapi_pblock_set(pb, SLAPI_TXN, txn.back_txn_txn); if (0 == retry_count) { /* just once */ if ( !MANAGE_ENTRY_BEFORE_DBLOCK(li)) { /* find and lock the entry we are about to modify */ if (fixup_tombstone) { e = find_entry2modify_only_ext( pb, be, addr, TOMBSTONE_INCLUDED, &txn, &result_sent ); } else { e = find_entry2modify( pb, be, addr, &txn, &result_sent ); } if (e == NULL) { ldap_result_code = -1; goto error_return; /* error result sent by find_entry2modify() */ } } if ( !is_fixup_operation && !fixup_tombstone) { if (!repl_op && slapi_entry_flag_is_set(e->ep_entry, SLAPI_ENTRY_FLAG_TOMBSTONE)) { ldap_result_code = LDAP_UNWILLING_TO_PERFORM; ldap_result_message = "Operation not allowed on tombstone entry."; slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify", "Attempt to modify a tombstone entry %s\n", slapi_sdn_get_dn(slapi_entry_get_sdn_const( e->ep_entry ))); goto error_return; } opcsn = operation_get_csn (operation); if (NULL == opcsn && operation->o_csngen_handler) { /* * Current op is a user request. Opcsn will be assigned * if the dn is in an updatable replica. */ opcsn = entry_assign_operation_csn ( pb, e->ep_entry, NULL ); } if (opcsn) { entry_set_maxcsn (e->ep_entry, opcsn); } } /* Save away a copy of the entry, before modifications */ slapi_pblock_set( pb, SLAPI_ENTRY_PRE_OP, slapi_entry_dup( e->ep_entry )); if ( (ldap_result_code = plugin_call_acl_mods_access( pb, e->ep_entry, mods, &errbuf)) != LDAP_SUCCESS ) { ldap_result_message= errbuf; goto error_return; } /* create a copy of the entry and apply the changes to it */ if ( (ec = backentry_dup( e )) == NULL ) { ldap_result_code= LDAP_OPERATIONS_ERROR; goto error_return; } if(!repl_op){ remove_illegal_mods(mods); } /* ec is the entry that our bepreop should get to mess with */ slapi_pblock_set( pb, SLAPI_MODIFY_EXISTING_ENTRY, ec->ep_entry ); slapi_pblock_set(pb, SLAPI_RESULT_CODE, &ldap_result_code); opreturn = plugin_call_plugins(pb, SLAPI_PLUGIN_BE_PRE_MODIFY_FN); if (opreturn || (slapi_pblock_get(pb, SLAPI_RESULT_CODE, &ldap_result_code) && ldap_result_code) || (slapi_pblock_get(pb, SLAPI_PLUGIN_OPRETURN, &opreturn) && opreturn)) { slapi_pblock_get(pb, SLAPI_RESULT_CODE, &ldap_result_code); slapi_pblock_get(pb, SLAPI_PLUGIN_OPRETURN, &opreturn); if (!ldap_result_code) { slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify", "SLAPI_PLUGIN_BE_PRE_MODIFY_FN " "returned error but did not set SLAPI_RESULT_CODE\n"); ldap_result_code = LDAP_OPERATIONS_ERROR; } if (SLAPI_PLUGIN_NOOP == opreturn) { not_an_error = 1; rc = opreturn = LDAP_SUCCESS; } else if (!opreturn) { opreturn = SLAPI_PLUGIN_FAILURE; slapi_pblock_set(pb, SLAPI_PLUGIN_OPRETURN, &opreturn); } slapi_pblock_get(pb, SLAPI_PB_RESULT_TEXT, &ldap_result_message); goto error_return; } /* The Plugin may have messed about with some of the PBlock parameters... ie. mods */ slapi_pblock_get( pb, SLAPI_MODIFY_MODS, &mods ); /* apply the mods, check for syntax, schema problems, etc. */ if (modify_apply_check_expand(pb, operation, mods, e, ec, &postentry, &ldap_result_code, &ldap_result_message)) { goto error_return; } /* the schema check could have added a repl conflict mod * get the mods again */ slapi_pblock_get( pb, SLAPI_MODIFY_MODS, &mods ); slapi_mods_init_byref(&smods,mods); mod_count = slapi_mods_get_num_mods(&smods); /* * Grab a copy of the mods and the entry in case the be_txn_preop changes * the them. If we have a failure, then we need to reset the mods to their * their original state; */ mods_original = copy_mods(mods); if ( (original_entry = backentry_dup( ec )) == NULL ) { ldap_result_code= LDAP_OPERATIONS_ERROR; goto error_return; } } /* if (0 == retry_count) just once */ /* call the transaction pre modify plugins just after creating the transaction */ retval = plugin_call_plugins(pb, SLAPI_PLUGIN_BE_TXN_PRE_MODIFY_FN); if (retval) { slapi_log_err(SLAPI_LOG_TRACE, "ldbm_back_modify", "SLAPI_PLUGIN_BE_TXN_PRE_MODIFY_FN plugin " "returned error code %d\n", retval ); slapi_pblock_get(pb, SLAPI_RESULT_CODE, &ldap_result_code); slapi_pblock_get(pb, SLAPI_PLUGIN_OPRETURN, &opreturn); if (SLAPI_PLUGIN_NOOP == retval) { not_an_error = 1; rc = retval = LDAP_SUCCESS; } if (!opreturn) { slapi_pblock_set(pb, SLAPI_PLUGIN_OPRETURN, ldap_result_code ? &ldap_result_code : &retval); } slapi_pblock_get(pb, SLAPI_PB_RESULT_TEXT, &ldap_result_message); goto error_return; } /* the mods might have been changed, so get the latest */ slapi_pblock_get( pb, SLAPI_MODIFY_MODS, &mods ); /* make sure the betxnpreop did not alter any of the mods that had already previously been applied */ slapi_mods_done(&smods); slapi_mods_init_byref(&smods,mods); new_mod_count = slapi_mods_get_num_mods(&smods); if (new_mod_count < mod_count) { slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify", "Error: BE_TXN_PRE_MODIFY plugin has removed " "mods from the original list - mod count was [%d] now [%d] " "mods will not be applied - mods list changes must be done " "in the BE_PRE_MODIFY plugin, not the BE_TXN_PRE_MODIFY\n", mod_count, new_mod_count ); } else if (new_mod_count > mod_count) { /* apply the new betxnpremod mods */ /* apply the mods, check for syntax, schema problems, etc. */ if (modify_apply_check_expand(pb, operation, &mods[mod_count], e, ec, &postentry, &ldap_result_code, &ldap_result_message)) { goto error_return; } } /* else if new_mod_count == mod_count then betxnpremod plugin did nothing */ /* * Update the ID to Entry index. * Note that id2entry_add replaces the entry, so the Entry ID * stays the same. */ retval = id2entry_add_ext( be, ec, &txn, 1, &cache_rc ); if (DB_LOCK_DEADLOCK == retval) { /* Abort and re-try */ continue; } if (0 != retval) { slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify", "id2entry_add failed, err=%d %s\n", retval, (msg = dblayer_strerror( retval )) ? msg : ""); if (LDBM_OS_ERR_IS_DISKFULL(retval)) disk_full = 1; MOD_SET_ERROR(ldap_result_code, LDAP_OPERATIONS_ERROR, retry_count); goto error_return; } retval = index_add_mods( be, mods, e, ec, &txn ); if (DB_LOCK_DEADLOCK == retval) { /* Abort and re-try */ continue; } if (0 != retval) { slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify", "index_add_mods failed, err=%d %s\n", retval, (msg = dblayer_strerror( retval )) ? msg : ""); if (LDBM_OS_ERR_IS_DISKFULL(retval)) disk_full = 1; MOD_SET_ERROR(ldap_result_code, LDAP_OPERATIONS_ERROR, retry_count); goto error_return; } /* * Remove the old entry from the Virtual List View indexes. * Add the new entry to the Virtual List View indexes. * If the entry is ruv, no need to update vlv. */ if (!is_ruv) { retval= vlv_update_all_indexes(&txn, be, pb, e, ec); if (DB_LOCK_DEADLOCK == retval) { /* Abort and re-try */ continue; } if (0 != retval) { slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify", "vlv_update_index failed, err=%d %s\n", retval, (msg = dblayer_strerror( retval )) ? msg : ""); if (LDBM_OS_ERR_IS_DISKFULL(retval)) disk_full = 1; MOD_SET_ERROR(ldap_result_code, LDAP_OPERATIONS_ERROR, retry_count); goto error_return; } } if (!is_ruv && !is_fixup_operation && !NO_RUV_UPDATE(li)) { ruv_c_init = ldbm_txn_ruv_modify_context( pb, &ruv_c ); if (-1 == ruv_c_init) { slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify", "ldbm_txn_ruv_modify_context failed to construct RUV modify context\n"); ldap_result_code= LDAP_OPERATIONS_ERROR; retval = 0; goto error_return; } } if (ruv_c_init) { retval = modify_update_all( be, pb, &ruv_c, &txn ); if (DB_LOCK_DEADLOCK == retval) { /* Abort and re-try */ continue; } if (0 != retval) { slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify", "modify_update_all failed, err=%d %s\n", retval, (msg = dblayer_strerror( retval )) ? msg : ""); if (LDBM_OS_ERR_IS_DISKFULL(retval)) disk_full = 1; ldap_result_code= LDAP_OPERATIONS_ERROR; goto error_return; } } if (0 == retval) { break; } } if (retry_count == RETRY_TIMES) { slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify", "Retry count exceeded in modify\n"); ldap_result_code= LDAP_BUSY; goto error_return; } if (ruv_c_init) { if (modify_switch_entries(&ruv_c, be) != 0 ) { ldap_result_code= LDAP_OPERATIONS_ERROR; slapi_log_err(SLAPI_LOG_ERR, "ldbm_back_modify", "modify_switch_entries failed\n"); goto error_return; } } if (cache_replace( &inst->inst_cache, e, ec ) != 0 ) { MOD_SET_ERROR(ldap_result_code, LDAP_OPERATIONS_ERROR, retry_count); goto error_return; } /* e uncached */ /* we must return both e (which has been deleted) and new entry ec to cache */ /* cache_replace removes e from the cache hash tables */ cache_unlock_entry( &inst->inst_cache, e ); CACHE_RETURN( &inst->inst_cache, &e ); /* lock new entry in cache to prevent usage until we are complete */ cache_lock_entry( &inst->inst_cache, ec ); ec_locked = 1; postentry = slapi_entry_dup( ec->ep_entry ); slapi_pblock_set( pb, SLAPI_ENTRY_POST_OP, postentry ); /* invalidate virtual cache */ ec->ep_entry->e_virtual_watermark = 0; /* * LP Fix of crash when the commit will fail: * If the commit fail, the common error path will * try to unlock the entry again and crash (PR_ASSERT * in debug mode. * By just setting e to NULL, we avoid this. It's OK since * we don't use e after that in the normal case. */ e = NULL; /* call the transaction post modify plugins just before the commit */ if ((retval = plugin_call_plugins(pb, SLAPI_PLUGIN_BE_TXN_POST_MODIFY_FN))) { slapi_log_err(SLAPI_LOG_TRACE, "ldbm_back_modify", "SLAPI_PLUGIN_BE_TXN_POST_MODIFY_FN plugin " "returned error code %d\n", retval ); if (!ldap_result_code) { slapi_pblock_get(pb, SLAPI_RESULT_CODE, &ldap_result_code); } if (!opreturn) { slapi_pblock_get(pb, SLAPI_PLUGIN_OPRETURN, &opreturn); } if (!opreturn) { slapi_pblock_set(pb, SLAPI_PLUGIN_OPRETURN, ldap_result_code ? &ldap_result_code : &retval); } slapi_pblock_get(pb, SLAPI_PB_RESULT_TEXT, &ldap_result_message); goto error_return; } /* Release SERIAL LOCK */ retval = dblayer_txn_commit(be, &txn); /* after commit - txn is no longer valid - replace SLAPI_TXN with parent */ slapi_pblock_set(pb, SLAPI_TXN, parent_txn); if (0 != retval) { if (LDBM_OS_ERR_IS_DISKFULL(retval)) disk_full = 1; ldap_result_code= LDAP_OPERATIONS_ERROR; goto error_return; } rc= 0; goto common_return; error_return: if ( postentry != NULL ) { slapi_entry_free( postentry ); postentry = NULL; slapi_pblock_set( pb, SLAPI_ENTRY_POST_OP, NULL ); } if (retval == DB_RUNRECOVERY) { dblayer_remember_disk_filled(li); ldbm_nasty("ldbm_back_modify","Modify",81,retval); disk_full = 1; } if (disk_full) { rc= return_on_disk_full(li); } else { if (txn.back_txn_txn && (txn.back_txn_txn != parent_txn)) { /* make sure SLAPI_RESULT_CODE and SLAPI_PLUGIN_OPRETURN are set */ int val = 0; slapi_pblock_get(pb, SLAPI_RESULT_CODE, &val); if (!val) { if (!ldap_result_code) { ldap_result_code = LDAP_OPERATIONS_ERROR; } slapi_pblock_set(pb, SLAPI_RESULT_CODE, &ldap_result_code); } slapi_pblock_get( pb, SLAPI_PLUGIN_OPRETURN, &val ); if (!val) { opreturn = -1; slapi_pblock_set( pb, SLAPI_PLUGIN_OPRETURN, &opreturn ); } /* call the transaction post modify plugins just before the abort */ /* plugins called before abort should check for the OPRETURN or RESULT_CODE and skip processing if they don't want do anything - some plugins that keep track of a counter (usn, dna) may want to "rollback" the counter in this case */ if ((retval = plugin_call_plugins(pb, SLAPI_PLUGIN_BE_TXN_POST_MODIFY_FN))) { slapi_log_err(SLAPI_LOG_TRACE, "ldbm_back_modify", "SLAPI_PLUGIN_BE_TXN_POST_MODIFY_FN plugin returned error code %d\n", retval ); slapi_pblock_get(pb, SLAPI_RESULT_CODE, &ldap_result_code); slapi_pblock_get(pb, SLAPI_PB_RESULT_TEXT, &ldap_result_message); slapi_pblock_get(pb, SLAPI_PLUGIN_OPRETURN, &opreturn); if (!opreturn) { slapi_pblock_set(pb, SLAPI_PLUGIN_OPRETURN, ldap_result_code ? &ldap_result_code : &retval); } } /* It is safer not to abort when the transaction is not started. */ /* Release SERIAL LOCK */ dblayer_txn_abort(be, &txn); /* abort crashes in case disk full */ /* txn is no longer valid - reset the txn pointer to the parent */ slapi_pblock_set(pb, SLAPI_TXN, parent_txn); } if (!not_an_error) { rc = SLAPI_FAIL_GENERAL; } } /* if ec is in cache, remove it, then add back e if we still have it */ if (inst && cache_is_in_cache(&inst->inst_cache, ec)) { CACHE_REMOVE( &inst->inst_cache, ec ); /* if ec was in cache, e was not - add back e */ if (e) { if (CACHE_ADD( &inst->inst_cache, e, NULL ) < 0) { slapi_log_err(SLAPI_LOG_CACHE, "ldbm_back_modify", "CACHE_ADD %s failed\n", slapi_entry_get_dn(e->ep_entry)); } } } common_return: slapi_mods_done(&smods); if (inst) { if (ec_locked || cache_is_in_cache(&inst->inst_cache, ec)) { cache_unlock_entry(&inst->inst_cache, ec); } else if (e) { /* if ec was not in cache, cache_replace was not done. * i.e., e was not unlocked. */ cache_unlock_entry(&inst->inst_cache, e); CACHE_RETURN(&inst->inst_cache, &e); } CACHE_RETURN(&inst->inst_cache, &ec); if (inst->inst_ref_count) { slapi_counter_decrement(inst->inst_ref_count); } } /* result code could be used in the bepost plugin functions. */ slapi_pblock_set(pb, SLAPI_RESULT_CODE, &ldap_result_code); /* The bepostop is called even if the operation fails. */ if (!disk_full) plugin_call_plugins (pb, SLAPI_PLUGIN_BE_POST_MODIFY_FN); if (ruv_c_init) { modify_term(&ruv_c, be); } if (ldap_result_code == -1) { /* Reset to LDAP_NO_SUCH_OBJECT*/ ldap_result_code = LDAP_NO_SUCH_OBJECT; slapi_pblock_set(pb, SLAPI_RESULT_CODE, &ldap_result_code); } else { if (not_an_error) { /* This is mainly used by urp. Solved conflict is not an error. * And we don't want the supplier to halt sending the updates. */ ldap_result_code = LDAP_SUCCESS; } if (!result_sent) { /* result is already sent in find_entry. */ slapi_send_ldap_result( pb, ldap_result_code, NULL, ldap_result_message, 0, NULL ); } } /* free our backups */ ldap_mods_free(mods_original, 1); backentry_free(&original_entry); backentry_free(&tmpentry); slapi_ch_free_string(&errbuf); return rc; }
/** Apply the mods to the ec entry. Check for syntax, schema problems. Check for abandon. Return code: -1 - error - result code and message are set appropriately 0 - successfully applied and checked 1 - not an error - no mods to apply or op abandoned */ static int modify_apply_check_expand( Slapi_PBlock *pb, Slapi_Operation *operation, LDAPMod **mods, /* list of mods to apply */ struct backentry *e, /* original "before" entry */ struct backentry *ec, /* "after" entry with mods applied */ Slapi_Entry **postentry, int *ldap_result_code, char **ldap_result_message ) { int rc = 0; int i; int repl_op; int change_entry = 0; Slapi_Mods smods = {0}; CSN *csn = operation_get_csn(operation); slapi_pblock_get (pb, SLAPI_IS_REPLICATED_OPERATION, &repl_op); slapi_mods_init_byref( &smods, mods ); if ( (change_entry = mods_have_effect (ec->ep_entry, &smods)) ) { *ldap_result_code = entry_apply_mods_wsi(ec->ep_entry, &smods, csn, operation_is_flag_set(operation, OP_FLAG_REPLICATED)); /* * XXXmcs: it would be nice to get back an error message from * the above call so we could pass it along to the client, e.g., * "duplicate value for attribute givenName." */ } else { Slapi_Entry *epostop = NULL; /* If the entry was not actually changed, we still need to * set the SLAPI_ENTRY_POST_OP field in the pblock (post-op * plugins expect that field to be present for all modify * operations that return LDAP_SUCCESS). */ slapi_pblock_get ( pb, SLAPI_ENTRY_POST_OP, &epostop ); slapi_entry_free ( epostop ); /* free existing one, if any */ slapi_pblock_set ( pb, SLAPI_ENTRY_POST_OP, slapi_entry_dup( e->ep_entry ) ); *postentry = NULL; /* to avoid free in main error cleanup code */ } if ( !change_entry || *ldap_result_code != 0 ) { /* change_entry == 0 is not an error just a no-op */ rc = change_entry ? -1 : 1; goto done; } /* * If the objectClass attribute type was modified in any way, expand * the objectClass values to reflect the inheritance hierarchy. */ for ( i = 0; mods && mods[i]; ++i ) { if ( 0 == strcasecmp( SLAPI_ATTR_OBJECTCLASS, mods[i]->mod_type )) { slapi_schema_expand_objectclasses( ec->ep_entry ); break; } } /* * We are about to pass the last abandon test, so from now on we are * committed to finish this operation. Set status to "will complete" * before we make our last abandon check to avoid race conditions in * the code that processes abandon operations. */ operation->o_status = SLAPI_OP_STATUS_WILL_COMPLETE; if ( slapi_op_abandoned( pb ) ) { rc = 1; goto done; } /* multimaster replication can result in a schema violation, * although the individual operations on each master were valid * It is too late to resolve this. But we can check schema and * add a replication conflict attribute. */ /* check that the entry still obeys the schema */ if ((operation_is_flag_set(operation,OP_FLAG_ACTION_SCHEMA_CHECK)) && slapi_entry_schema_check_ext( pb, ec->ep_entry, 1 ) != 0 ) { if(repl_op){ Slapi_Attr *attr; Slapi_Mods smods; LDAPMod **lmods; if (slapi_entry_attr_find (ec->ep_entry, ATTR_NSDS5_REPLCONFLICT, &attr) == 0) { /* add value */ Slapi_Value *val = slapi_value_new_string("Schema violation"); slapi_attr_add_value(attr,val); slapi_value_free(&val); } else { /* Add new attribute */ slapi_entry_add_string (ec->ep_entry, ATTR_NSDS5_REPLCONFLICT, "Schema violation"); } /* the replconflict attribute is indexed and the index is built from the mods, * so we need to extend the mods */ slapi_pblock_get(pb, SLAPI_MODIFY_MODS, &lmods); slapi_mods_init_passin(&smods, lmods); slapi_mods_add_string (&smods, LDAP_MOD_ADD, ATTR_NSDS5_REPLCONFLICT, "Schema violation"); lmods = slapi_mods_get_ldapmods_passout(&smods); slapi_pblock_set(pb, SLAPI_MODIFY_MODS, lmods); slapi_mods_done(&smods); } else { *ldap_result_code = LDAP_OBJECT_CLASS_VIOLATION; slapi_pblock_get(pb, SLAPI_PB_RESULT_TEXT, ldap_result_message); rc = -1; goto done; } } if(!repl_op){ /* check attribute syntax for the new values */ if (slapi_mods_syntax_check(pb, mods, 0) != 0) { *ldap_result_code = LDAP_INVALID_SYNTAX; slapi_pblock_get(pb, SLAPI_PB_RESULT_TEXT, ldap_result_message); rc = -1; goto done; } /* * make sure the entry contains all values in the RDN. * if not, the modification must have removed them. */ if ( ! slapi_entry_rdn_values_present( ec->ep_entry ) ) { *ldap_result_code= LDAP_NOT_ALLOWED_ON_RDN; rc = -1; goto done; } } done: slapi_mods_done( &smods ); return rc; }