diff --git a/cib/callbacks.c b/cib/callbacks.c index c1731fccef..93d8e561d9 100644 --- a/cib/callbacks.c +++ b/cib/callbacks.c @@ -1,1350 +1,1429 @@ /* * Copyright (C) 2004 Andrew Beekhof * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "common.h" extern GMainLoop *mainloop; extern gboolean cib_shutdown_flag; extern gboolean stand_alone; extern const char *cib_root; +static unsigned long cib_local_bcast_num = 0; + +typedef struct cib_local_notify_s { + xmlNode *notify_src; + char *client_id; + gboolean from_peer; + gboolean sync_reply; +} cib_local_notify_t; + qb_ipcs_service_t *ipcs_ro = NULL; qb_ipcs_service_t *ipcs_rw = NULL; qb_ipcs_service_t *ipcs_shm = NULL; #if SUPPORT_HEARTBEAT extern ll_cluster_t *hb_conn; #endif extern enum cib_errors cib_update_counter(xmlNode * xml_obj, const char *field, gboolean reset); extern void GHFunc_count_peers(gpointer key, gpointer value, gpointer user_data); gint cib_GCompareFunc(gconstpointer a, gconstpointer b); gboolean can_write(int flags); void send_cib_replace(const xmlNode * sync_request, const char *host); void cib_process_request(xmlNode * request, gboolean privileged, gboolean force_synchronous, gboolean from_peer, cib_client_t * cib_client); extern GHashTable *client_list; +extern GHashTable *local_notify_queue; int next_client_id = 0; extern const char *cib_our_uname; extern unsigned long cib_num_ops, cib_num_local, cib_num_updates, cib_num_fail; extern unsigned long cib_bad_connects, cib_num_timeouts; extern enum cib_errors cib_status; enum cib_errors cib_process_command(xmlNode * request, xmlNode ** reply, xmlNode ** cib_diff, gboolean privileged); gboolean cib_common_callback(qb_ipcs_connection_t *c, void *data, size_t size, gboolean privileged); static int32_t cib_ipc_accept(qb_ipcs_connection_t *c, uid_t uid, gid_t gid) { crm_trace("Connecting %p for uid=%d gid=%d pid=%d", c, uid, gid, crm_ipcs_client_pid(c)); if (cib_shutdown_flag) { crm_info("Ignoring new client [%d] during shutdown", crm_ipcs_client_pid(c)); return -EPERM; } return 0; } static void cib_ipc_created(qb_ipcs_connection_t *c) { cib_client_t *new_client = NULL; new_client = calloc(1, sizeof(cib_client_t)); new_client->ipc = c; CRM_CHECK(new_client->id == NULL, free(new_client->id)); new_client->id = crm_generate_uuid(); crm_trace("%p connected for client %s", c, new_client->id); /* make sure we can find ourselves later for sync calls * redirected to the master instance */ g_hash_table_insert(client_list, new_client->id, new_client); qb_ipcs_context_set(c, new_client); } static int32_t cib_ipc_dispatch_rw(qb_ipcs_connection_t *c, void *data, size_t size) { cib_client_t *cib_client = qb_ipcs_context_get(c); crm_trace("%p message from %s", c, cib_client->id); return cib_common_callback(c, data, size, TRUE); } static int32_t cib_ipc_dispatch_ro(qb_ipcs_connection_t *c, void *data, size_t size) { cib_client_t *cib_client = qb_ipcs_context_get(c); crm_trace("%p message from %s", c, cib_client->id); return cib_common_callback(c, data, size, FALSE); } /* Error code means? */ static int32_t cib_ipc_closed(qb_ipcs_connection_t *c) { cib_client_t *cib_client = qb_ipcs_context_get(c); crm_trace("Connection %p closed", c); CRM_ASSERT(cib_client != NULL); CRM_ASSERT(cib_client->id != NULL); if (!g_hash_table_remove(client_list, cib_client->id)) { crm_err("Client %s not found in the hashtable", cib_client->name); } return 0; } static void cib_ipc_destroy(qb_ipcs_connection_t *c) { cib_client_t *cib_client = qb_ipcs_context_get(c); CRM_ASSERT(cib_client != NULL); CRM_ASSERT(cib_client->id != NULL); /* In case we arrive here without a call to cib_ipc_close() */ g_hash_table_remove(client_list, cib_client->id); crm_trace("Destroying %s (%p)", cib_client->name, c); free(cib_client->name); free(cib_client->callback_id); free(cib_client->id); free(cib_client->user); free(cib_client); crm_trace("Freed the cib client"); if (cib_shutdown_flag) { cib_shutdown(0); } } struct qb_ipcs_service_handlers ipc_ro_callbacks = { .connection_accept = cib_ipc_accept, .connection_created = cib_ipc_created, .msg_process = cib_ipc_dispatch_ro, .connection_closed = cib_ipc_closed, .connection_destroyed = cib_ipc_destroy }; struct qb_ipcs_service_handlers ipc_rw_callbacks = { .connection_accept = cib_ipc_accept, .connection_created = cib_ipc_created, .msg_process = cib_ipc_dispatch_rw, .connection_closed = cib_ipc_closed, .connection_destroyed = cib_ipc_destroy }; void cib_common_callback_worker(xmlNode * op_request, cib_client_t * cib_client, gboolean privileged) { const char *op = crm_element_value(op_request, F_CIB_OPERATION); if (crm_str_eq(op, CRM_OP_REGISTER, TRUE)) { xmlNode *ack = create_xml_node(NULL, __FUNCTION__); crm_xml_add(ack, F_CIB_OPERATION, CRM_OP_REGISTER); crm_xml_add(ack, F_CIB_CLIENTID, cib_client->id); crm_ipcs_send(cib_client->ipc, ack, FALSE); free_xml(ack); return; } else if (crm_str_eq(op, T_CIB_NOTIFY, TRUE)) { /* Update the notify filters for this client */ int on_off = 0; int rc = cib_ok; const char *type = crm_element_value(op_request, F_CIB_NOTIFY_TYPE); crm_element_value_int(op_request, F_CIB_NOTIFY_ACTIVATE, &on_off); crm_debug("Setting %s callbacks for %s (%s): %s", type, cib_client->name, cib_client->id, on_off ? "on" : "off"); if (safe_str_eq(type, T_CIB_POST_NOTIFY)) { cib_client->post_notify = on_off; } else if (safe_str_eq(type, T_CIB_PRE_NOTIFY)) { cib_client->pre_notify = on_off; } else if (safe_str_eq(type, T_CIB_UPDATE_CONFIRM)) { cib_client->confirmations = on_off; } else if (safe_str_eq(type, T_CIB_DIFF_NOTIFY)) { cib_client->diffs = on_off; } else if (safe_str_eq(type, T_CIB_REPLACE_NOTIFY)) { cib_client->replace = on_off; } else { rc = cib_NOTEXISTS; } /* Already ack'd */ return; } cib_client->num_calls++; cib_process_request(op_request, FALSE, privileged, FALSE, cib_client); } int32_t cib_common_callback(qb_ipcs_connection_t *c, void *data, size_t size, gboolean privileged) { int call_options = 0; const char *op = NULL; const char *call = NULL; xmlNode *op_request = crm_ipcs_recv(c, data, size); cib_client_t *cib_client = qb_ipcs_context_get(c); if(op_request) { op = crm_element_value(op_request, F_CIB_OPERATION); call = crm_element_value(op_request, F_CIB_CALLID); crm_element_value_int(op_request, F_CIB_CALLOPTS, &call_options); } crm_trace("Inbound: %.200s", data); if (op_request == NULL || cib_client == NULL) { xmlNode *ack = create_xml_node(NULL, "nack"); crm_trace("Sending nack to %p", cib_client); crm_xml_add(ack, F_CIB_CALLID, call); crm_xml_add(ack, F_CIB_OPERATION, op); crm_xml_add(ack, XML_ATTR_ORIGIN, __FUNCTION__); crm_ipcs_send(c, ack, FALSE); free_xml(ack); return 0; } else if((call_options & cib_sync_call) == 0) { xmlNode *ack = create_xml_node(NULL, "ack"); crm_trace("Sending a-sync ack to %p", cib_client); crm_xml_add(ack, F_CIB_CALLID, call); crm_xml_add(ack, F_CIB_OPERATION, op); crm_xml_add(ack, XML_ATTR_ORIGIN, __FUNCTION__); crm_ipcs_send(c, ack, FALSE); free_xml(ack); } if (cib_client->name == NULL) { const char *value = crm_element_value(op_request, F_CIB_CLIENTNAME); if (value == NULL) { cib_client->name = crm_itoa(crm_ipcs_client_pid(c)); } else { cib_client->name = crm_strdup(value); } } if (cib_client->callback_id == NULL) { const char *value = crm_element_value(op_request, F_CIB_CALLBACK_TOKEN); if (value != NULL) { cib_client->callback_id = crm_strdup(value); } else { cib_client->callback_id = crm_strdup(cib_client->id); } } crm_xml_add(op_request, F_CIB_CLIENTID, cib_client->id); crm_xml_add(op_request, F_CIB_CLIENTNAME, cib_client->name); #if ENABLE_ACL determine_request_user(&cib_client->user, channel, op_request, F_CIB_USER); #endif crm_log_xml_trace(op_request, "Client[inbound]"); cib_common_callback_worker(op_request, cib_client, privileged); return 0; } static void do_local_notify(xmlNode * notify_src, const char *client_id, gboolean sync_reply, gboolean from_peer) { /* send callback to originating child */ cib_client_t *client_obj = NULL; enum cib_errors local_rc = cib_ok; if (client_id != NULL) { client_obj = g_hash_table_lookup(client_list, client_id); } else { crm_trace("No client to sent the response to. F_CIB_CLIENTID not set."); } if (client_obj == NULL) { local_rc = cib_client_gone; } else { crm_trace("Sending %ssync response to %s %s", sync_reply ? "" : "an a-", client_obj->name, from_peer ? "(originator of delegated request)" : ""); if (client_obj->ipc && crm_ipcs_send(client_obj->ipc, notify_src, !sync_reply) < 0) { local_rc = cib_reply_failed; #ifdef HAVE_GNUTLS_GNUTLS_H } else if (client_obj->session) { cib_send_remote_msg(client_obj->session, notify_src, client_obj->encrypted); #endif } else if(client_obj->ipc == NULL) { crm_err("Unknown transport for %s", client_obj->name); } } if (local_rc != cib_ok && client_obj != NULL) { crm_warn("%sSync reply to %s failed: %s", sync_reply ? "" : "A-", client_obj ? client_obj->name : "", cib_error2string(local_rc)); } } +static void +local_notify_destroy_callback(gpointer data) +{ + cib_local_notify_t *notify = data; + + free_xml(notify->notify_src); + crm_free(notify->client_id); + crm_free(notify); +} + +static void +check_local_notify(int bcast_id) +{ + cib_local_notify_t *notify = NULL; + + if (!local_notify_queue) { + return; + } + + notify = g_hash_table_lookup(local_notify_queue, GINT_TO_POINTER(bcast_id)); + + if (notify) { + do_local_notify(notify->notify_src, notify->client_id, notify->sync_reply, notify->from_peer); + g_hash_table_remove(local_notify_queue, GINT_TO_POINTER(bcast_id)); + } +} + +static void +queue_local_notify(xmlNode * notify_src, const char *client_id, gboolean sync_reply, gboolean from_peer) +{ + cib_local_notify_t *notify; + + crm_malloc0(notify, sizeof(cib_local_notify_t)); + + notify->notify_src = notify_src; + notify->client_id = crm_strdup(client_id); + notify->sync_reply = sync_reply; + notify->from_peer = from_peer; + + if (!local_notify_queue) { + local_notify_queue = g_hash_table_new_full(g_direct_hash, + g_direct_equal, NULL, local_notify_destroy_callback); + } + + g_hash_table_insert(local_notify_queue, GINT_TO_POINTER(cib_local_bcast_num), notify); +} + static void parse_local_options(cib_client_t * cib_client, int call_type, int call_options, const char *host, const char *op, gboolean * local_notify, gboolean * needs_reply, gboolean * process, gboolean * needs_forward) { if (cib_op_modifies(call_type) && !(call_options & cib_inhibit_bcast)) { /* we need to send an update anyway */ *needs_reply = TRUE; } else { *needs_reply = FALSE; } if (host == NULL && (call_options & cib_scope_local)) { crm_trace("Processing locally scoped %s op from %s", op, cib_client->name); *local_notify = TRUE; } else if (host == NULL && cib_is_master) { crm_trace("Processing master %s op locally from %s", op, cib_client->name); *local_notify = TRUE; } else if (safe_str_eq(host, cib_our_uname)) { crm_trace("Processing locally addressed %s op from %s", op, cib_client->name); *local_notify = TRUE; } else if (stand_alone) { *needs_forward = FALSE; *local_notify = TRUE; *process = TRUE; } else { crm_trace("%s op from %s needs to be forwarded to %s", op, cib_client->name, host ? host : "the master instance"); *needs_forward = TRUE; *process = FALSE; } } static gboolean parse_peer_options(int call_type, xmlNode * request, gboolean * local_notify, gboolean * needs_reply, gboolean * process, gboolean * needs_forward) { const char *op = NULL; const char *host = NULL; const char *delegated = NULL; const char *originator = crm_element_value(request, F_ORIG); const char *reply_to = crm_element_value(request, F_CIB_ISREPLY); const char *update = crm_element_value(request, F_CIB_GLOBAL_UPDATE); gboolean is_reply = safe_str_eq(reply_to, cib_our_uname); if (crm_is_true(update)) { *needs_reply = FALSE; if (is_reply) { *local_notify = TRUE; crm_trace("Processing global/peer update from %s" " that originated from us", originator); } else { crm_trace("Processing global/peer update from %s", originator); } return TRUE; } host = crm_element_value(request, F_CIB_HOST); if (host != NULL && safe_str_eq(host, cib_our_uname)) { crm_trace("Processing request sent to us from %s", originator); return TRUE; } else if (host == NULL && cib_is_master == TRUE) { crm_trace("Processing request sent to master instance from %s", originator); return TRUE; } op = crm_element_value(request, F_CIB_OPERATION); if(safe_str_eq(op, "cib_shutdown_req")) { /* Always process these */ *local_notify = FALSE; if(reply_to == NULL || is_reply) { *process = TRUE; } if(is_reply) { *needs_reply = FALSE; } return *process; } if (is_reply) { crm_trace("Forward reply sent from %s to local clients", originator); *process = FALSE; *needs_reply = FALSE; *local_notify = TRUE; return TRUE; } delegated = crm_element_value(request, F_CIB_DELEGATED); if (delegated != NULL) { crm_trace("Ignoring msg for master instance"); } else if (host != NULL) { /* this is for a specific instance and we're not it */ crm_trace("Ignoring msg for instance on %s", crm_str(host)); } else if (reply_to == NULL && cib_is_master == FALSE) { /* this is for the master instance and we're not it */ crm_trace("Ignoring reply to %s", crm_str(reply_to)); } else if (safe_str_eq(op, "cib_shutdown_req")) { if (reply_to != NULL) { crm_debug("Processing %s from %s", op, host); *needs_reply = FALSE; } else { crm_debug("Processing %s reply from %s", op, host); } return TRUE; } else { crm_err("Nothing for us to do?"); crm_log_xml_err(request, "Peer[inbound]"); } return FALSE; } static void forward_request(xmlNode * request, cib_client_t * cib_client, int call_options) { const char *op = crm_element_value(request, F_CIB_OPERATION); const char *host = crm_element_value(request, F_CIB_HOST); crm_xml_add(request, F_CIB_DELEGATED, cib_our_uname); if (host != NULL) { crm_trace("Forwarding %s op to %s", op, host); send_cluster_message(host, crm_msg_cib, request, FALSE); } else { crm_trace("Forwarding %s op to master instance", op); send_cluster_message(NULL, crm_msg_cib, request, FALSE); } /* Return the request to its original state */ xml_remove_prop(request, F_CIB_DELEGATED); if (call_options & cib_discard_reply) { crm_trace("Client not interested in reply"); } } -static void +static gboolean send_peer_reply(xmlNode * msg, xmlNode * result_diff, const char *originator, gboolean broadcast) { CRM_ASSERT(msg != NULL); if (broadcast) { /* this (successful) call modified the CIB _and_ the * change needs to be broadcast... * send via HA to other nodes */ int diff_add_updates = 0; int diff_add_epoch = 0; int diff_add_admin_epoch = 0; int diff_del_updates = 0; int diff_del_epoch = 0; int diff_del_admin_epoch = 0; char *digest = NULL; cib_diff_version_details(result_diff, &diff_add_admin_epoch, &diff_add_epoch, &diff_add_updates, &diff_del_admin_epoch, &diff_del_epoch, &diff_del_updates); crm_trace("Sending update diff %d.%d.%d -> %d.%d.%d", diff_del_admin_epoch, diff_del_epoch, diff_del_updates, diff_add_admin_epoch, diff_add_epoch, diff_add_updates); crm_xml_add(msg, F_CIB_ISREPLY, originator); crm_xml_add(msg, F_CIB_GLOBAL_UPDATE, XML_BOOLEAN_TRUE); crm_xml_add(msg, F_CIB_OPERATION, CIB_OP_APPLY_DIFF); /* Its safe to always use the latest version since the election * ensures the software on this node is the oldest node in the cluster */ digest = calculate_xml_versioned_digest(the_cib, FALSE, TRUE, CRM_FEATURE_SET); crm_xml_add(result_diff, XML_ATTR_DIGEST, digest); crm_log_xml_trace(the_cib, digest); free(digest); add_message_xml(msg, F_CIB_UPDATE_DIFF, result_diff); crm_log_xml_trace(msg, "copy"); - send_cluster_message(NULL, crm_msg_cib, msg, TRUE); + return send_cluster_message(NULL, crm_msg_cib, msg, TRUE); } else if (originator != NULL) { /* send reply via HA to originating node */ crm_trace("Sending request result to originator only"); crm_xml_add(msg, F_CIB_ISREPLY, originator); - send_cluster_message(originator, crm_msg_cib, msg, FALSE); + return send_cluster_message(originator, crm_msg_cib, msg, FALSE); } + + return FALSE; } void cib_process_request(xmlNode * request, gboolean force_synchronous, gboolean privileged, gboolean from_peer, cib_client_t * cib_client) { int call_type = 0; int call_options = 0; gboolean process = TRUE; gboolean is_update = TRUE; gboolean needs_reply = TRUE; gboolean local_notify = FALSE; gboolean needs_forward = FALSE; gboolean global_update = crm_is_true(crm_element_value(request, F_CIB_GLOBAL_UPDATE)); xmlNode *op_reply = NULL; xmlNode *result_diff = NULL; enum cib_errors rc = cib_ok; const char *op = crm_element_value(request, F_CIB_OPERATION); const char *originator = crm_element_value(request, F_ORIG); const char *host = crm_element_value(request, F_CIB_HOST); + const char *client_id = crm_element_value(request, F_CIB_CLIENTID); crm_trace("%s Processing msg %s", cib_our_uname, crm_element_value(request, F_SEQ)); cib_num_ops++; if (cib_num_ops == 0) { cib_num_fail = 0; cib_num_local = 0; cib_num_updates = 0; crm_info("Stats wrapped around"); } if (host != NULL && strlen(host) == 0) { host = NULL; } crm_element_value_int(request, F_CIB_CALLOPTS, &call_options); if (force_synchronous) { call_options |= cib_sync_call; } crm_trace("Processing %s message (%s) for %s...", from_peer ? "peer" : "local", from_peer ? originator : cib_our_uname, host ? host : "master"); rc = cib_get_operation_id(op, &call_type); if (rc != cib_ok) { /* TODO: construct error reply? */ crm_err("Pre-processing of command failed: %s", cib_error2string(rc)); return; } is_update = cib_op_modifies(call_type); if (is_update) { cib_num_updates++; } if (from_peer == FALSE) { parse_local_options(cib_client, call_type, call_options, host, op, &local_notify, &needs_reply, &process, &needs_forward); } else if (parse_peer_options(call_type, request, &local_notify, &needs_reply, &process, &needs_forward) == FALSE) { return; } crm_trace("Finished determining processing actions"); if (call_options & cib_discard_reply) { needs_reply = is_update; local_notify = FALSE; } if (needs_forward) { forward_request(request, cib_client, call_options); return; } if (cib_status != cib_ok) { rc = cib_status; crm_err("Operation ignored, cluster configuration is invalid." " Please repair and restart: %s", cib_error2string(cib_status)); op_reply = cib_construct_reply(request, the_cib, cib_status); } else if (process) { int level = LOG_INFO; const char *section = crm_element_value(request, F_CIB_SECTION); cib_num_local++; rc = cib_process_command(request, &op_reply, &result_diff, privileged); if (global_update) { switch (rc) { case cib_ok: case cib_old_data: case cib_diff_resync: case cib_diff_failed: level = LOG_DEBUG_2; break; default: level = LOG_ERR; } } else if (safe_str_eq(op, CIB_OP_QUERY)) { level = LOG_DEBUG_2; } else if (rc != cib_ok) { cib_num_fail++; level = LOG_WARNING; } else if (safe_str_eq(op, CIB_OP_SLAVE)) { level = LOG_DEBUG_2; } else if (safe_str_eq(section, XML_CIB_TAG_STATUS)) { level = LOG_DEBUG_2; } do_crm_log_unlikely(level, "Operation complete: op %s for section %s (origin=%s/%s/%s, version=%s.%s.%s): %s (rc=%d)", op, section ? section : "'all'", originator ? originator : "local", crm_element_value(request, F_CIB_CLIENTNAME), crm_element_value(request, F_CIB_CALLID), the_cib ? crm_element_value(the_cib, XML_ATTR_GENERATION_ADMIN) : "0", the_cib ? crm_element_value(the_cib, XML_ATTR_GENERATION) : "0", the_cib ? crm_element_value(the_cib, XML_ATTR_NUMUPDATES) : "0", cib_error2string(rc), rc); if (op_reply == NULL && (needs_reply || local_notify)) { crm_err("Unexpected NULL reply to message"); crm_log_xml_err(request, "null reply"); needs_reply = FALSE; local_notify = FALSE; } } crm_trace("processing response cases %.16x %.16x", call_options, cib_sync_call); - if (local_notify) { - const char *client_id = crm_element_value(request, F_CIB_CLIENTID); - - if (client_id && process == FALSE) { - do_local_notify(request, client_id, call_options & cib_sync_call, from_peer); - } else if (client_id) { - do_local_notify(op_reply, client_id, call_options & cib_sync_call, from_peer); - } - } - /* from now on we are the server */ if (needs_reply == FALSE || stand_alone) { /* nothing more to do... * this was a non-originating slave update */ crm_trace("Completed slave update"); } else if (rc == cib_ok && result_diff != NULL && !(call_options & cib_inhibit_bcast)) { - send_peer_reply(request, result_diff, originator, TRUE); + gboolean broadcast = FALSE; + + cib_local_bcast_num++; + crm_xml_add_int(request, F_CIB_LOCAL_NOTIFY_ID, cib_local_bcast_num); + broadcast = send_peer_reply(request, result_diff, originator, TRUE); + + if (broadcast && + client_id && + local_notify && + op_reply) { + + /* If we have been asked to sync the reply, + * and a bcast msg has gone out, we queue the local notify + * until we know the bcast message has been received */ + local_notify = FALSE; + queue_local_notify(op_reply, client_id, (call_options & cib_sync_call), from_peer); + op_reply = NULL; /* the reply is queued, so don't free here */ + } } else if (call_options & cib_discard_reply) { crm_trace("Caller isn't interested in reply"); } else if (from_peer) { if (is_update == FALSE || result_diff == NULL) { crm_trace("Request not broadcast: R/O call"); } else if (call_options & cib_inhibit_bcast) { crm_trace("Request not broadcast: inhibited"); } else if (rc != cib_ok) { crm_trace("Request not broadcast: call failed: %s", cib_error2string(rc)); } else { crm_trace("Directing reply to %s", originator); } send_peer_reply(op_reply, result_diff, originator, FALSE); } + if (local_notify && client_id) { + if (process == FALSE) { + do_local_notify(request, client_id, call_options & cib_sync_call, from_peer); + } else { + do_local_notify(op_reply, client_id, call_options & cib_sync_call, from_peer); + } + } + free_xml(op_reply); free_xml(result_diff); return; } xmlNode * cib_construct_reply(xmlNode * request, xmlNode * output, int rc) { int lpc = 0; xmlNode *reply = NULL; const char *name = NULL; const char *value = NULL; const char *names[] = { F_CIB_OPERATION, F_CIB_CALLID, F_CIB_CLIENTID, F_CIB_CALLOPTS }; static int max = DIMOF(names); crm_trace("Creating a basic reply"); reply = create_xml_node(NULL, "cib-reply"); crm_xml_add(reply, F_TYPE, T_CIB); for (lpc = 0; lpc < max; lpc++) { name = names[lpc]; value = crm_element_value(request, name); crm_xml_add(reply, name, value); } crm_xml_add_int(reply, F_CIB_RC, rc); if (output != NULL) { crm_trace("Attaching reply output"); add_message_xml(reply, F_CIB_CALLDATA, output); } return reply; } enum cib_errors cib_process_command(xmlNode * request, xmlNode ** reply, xmlNode ** cib_diff, gboolean privileged) { xmlNode *input = NULL; xmlNode *output = NULL; xmlNode *result_cib = NULL; xmlNode *current_cib = NULL; #if ENABLE_ACL xmlNode *filtered_current_cib = NULL; #endif int call_type = 0; int call_options = 0; int log_level = LOG_DEBUG_4; const char *op = NULL; const char *section = NULL; enum cib_errors rc = cib_ok; enum cib_errors rc2 = cib_ok; gboolean send_r_notify = FALSE; gboolean global_update = FALSE; gboolean config_changed = FALSE; gboolean manage_counters = TRUE; CRM_ASSERT(cib_status == cib_ok); *reply = NULL; *cib_diff = NULL; current_cib = the_cib; /* Start processing the request... */ op = crm_element_value(request, F_CIB_OPERATION); crm_element_value_int(request, F_CIB_CALLOPTS, &call_options); rc = cib_get_operation_id(op, &call_type); if (rc == cib_ok && privileged == FALSE) { rc = cib_op_can_run(call_type, call_options, privileged, global_update); } rc2 = cib_op_prepare(call_type, request, &input, §ion); if (rc == cib_ok) { rc = rc2; } if (rc != cib_ok) { crm_trace("Call setup failed: %s", cib_error2string(rc)); goto done; } else if (cib_op_modifies(call_type) == FALSE) { #if ENABLE_ACL if (acl_enabled(config_hash) == FALSE || acl_filter_cib(request, current_cib, current_cib, &filtered_current_cib) == FALSE) { rc = cib_perform_op(op, call_options, cib_op_func(call_type), TRUE, section, request, input, FALSE, &config_changed, current_cib, &result_cib, NULL, &output); } else if (filtered_current_cib == NULL) { crm_debug("Pre-filtered the entire cib"); rc = cib_permission_denied; } else { crm_debug("Pre-filtered the queried cib according to the ACLs"); rc = cib_perform_op(op, call_options, cib_op_func(call_type), TRUE, section, request, input, FALSE, &config_changed, filtered_current_cib, &result_cib, NULL, &output); } #else rc = cib_perform_op(op, call_options, cib_op_func(call_type), TRUE, section, request, input, FALSE, &config_changed, current_cib, &result_cib, NULL, &output); #endif CRM_CHECK(result_cib == NULL, free_xml(result_cib)); goto done; } /* Handle a valid write action */ global_update = crm_is_true(crm_element_value(request, F_CIB_GLOBAL_UPDATE)); if (global_update) { manage_counters = FALSE; call_options |= cib_force_diff; CRM_CHECK(call_type == 3 || call_type == 4, crm_err("Call type: %d", call_type); crm_log_xml_err(request, "bad op")); } #ifdef SUPPORT_PRENOTIFY if ((call_options & cib_inhibit_notify) == 0) { cib_pre_notify(call_options, op, the_cib, input); } #endif if (rc == cib_ok) { if (call_options & cib_inhibit_bcast) { /* skip */ crm_trace("Skipping update: inhibit broadcast"); manage_counters = FALSE; } rc = cib_perform_op(op, call_options, cib_op_func(call_type), FALSE, section, request, input, manage_counters, &config_changed, current_cib, &result_cib, cib_diff, &output); #if ENABLE_ACL if (acl_enabled(config_hash) == TRUE && acl_check_diff(request, current_cib, result_cib, *cib_diff) == FALSE) { rc = cib_permission_denied; } #endif if (rc == cib_ok && config_changed) { time_t now; char *now_str = NULL; const char *validation = crm_element_value(result_cib, XML_ATTR_VALIDATION); if (validation) { int current_version = get_schema_version(validation); int support_version = get_schema_version("pacemaker-1.1"); /* Once the later schemas support the "update-*" attributes, change "==" to ">=" -- Changed */ if (current_version >= support_version) { const char *origin = crm_element_value(request, F_ORIG); crm_xml_replace(result_cib, XML_ATTR_UPDATE_ORIG, origin ? origin : cib_our_uname); crm_xml_replace(result_cib, XML_ATTR_UPDATE_CLIENT, crm_element_value(request, F_CIB_CLIENTNAME)); #if ENABLE_ACL crm_xml_replace(result_cib, XML_ATTR_UPDATE_USER, crm_element_value(request, F_CIB_USER)); #endif } } now = time(NULL); now_str = ctime(&now); now_str[24] = EOS; /* replace the newline */ crm_xml_replace(result_cib, XML_CIB_ATTR_WRITTEN, now_str); } if (manage_counters == FALSE) { config_changed = cib_config_changed(current_cib, result_cib, cib_diff); } /* Always write to disk for replace ops, * this negates the need to detect ordering changes */ if (config_changed == FALSE && crm_str_eq(CIB_OP_REPLACE, op, TRUE)) { config_changed = TRUE; } } if (rc == cib_ok && (call_options & cib_dryrun) == 0) { rc = activateCibXml(result_cib, config_changed, op); if (rc == cib_ok && cib_internal_config_changed(*cib_diff)) { cib_read_config(config_hash, result_cib); } if (crm_str_eq(CIB_OP_REPLACE, op, TRUE)) { if (section == NULL) { send_r_notify = TRUE; } else if (safe_str_eq(section, XML_TAG_CIB)) { send_r_notify = TRUE; } else if (safe_str_eq(section, XML_CIB_TAG_NODES)) { send_r_notify = TRUE; } else if (safe_str_eq(section, XML_CIB_TAG_STATUS)) { send_r_notify = TRUE; } } else if (crm_str_eq(CIB_OP_ERASE, op, TRUE)) { send_r_notify = TRUE; } } else if (rc == cib_dtd_validation) { if (output != NULL) { crm_log_xml_info(output, "cib:output"); free_xml(output); } #if ENABLE_ACL { xmlNode *filtered_result_cib = NULL; if (acl_enabled(config_hash) == FALSE || acl_filter_cib(request, current_cib, result_cib, &filtered_result_cib) == FALSE) { output = result_cib; } else { crm_debug("Filtered the result cib for output according to the ACLs"); output = filtered_result_cib; if (result_cib != NULL) { free_xml(result_cib); } } } #else output = result_cib; #endif } else { free_xml(result_cib); } if ((call_options & cib_inhibit_notify) == 0) { const char *call_id = crm_element_value(request, F_CIB_CALLID); const char *client = crm_element_value(request, F_CIB_CLIENTNAME); #ifdef SUPPORT_POSTNOTIFY cib_post_notify(call_options, op, input, rc, the_cib); #endif cib_diff_notify(call_options, client, call_id, op, input, rc, *cib_diff); } if (send_r_notify) { const char *origin = crm_element_value(request, F_ORIG); cib_replace_notify(origin, the_cib, rc, *cib_diff); } if (rc != cib_ok) { log_level = LOG_DEBUG_4; if (rc == cib_dtd_validation && global_update) { log_level = LOG_WARNING; crm_log_xml_info(input, "cib:global_update"); } } else if (config_changed) { log_level = LOG_DEBUG_3; if (cib_is_master) { log_level = LOG_NOTICE; } } else if (cib_is_master) { log_level = LOG_DEBUG_2; } log_xml_diff(log_level, *cib_diff, "cib:diff"); done: if ((call_options & cib_discard_reply) == 0) { *reply = cib_construct_reply(request, output, rc); crm_log_xml_trace(*reply, "cib:reply"); } #if ENABLE_ACL if (filtered_current_cib != NULL) { free_xml(filtered_current_cib); } #endif if (call_type >= 0) { cib_op_cleanup(call_type, call_options, &input, &output); } return rc; } gint cib_GCompareFunc(gconstpointer a, gconstpointer b) { const xmlNode *a_msg = a; const xmlNode *b_msg = b; int msg_a_id = 0; int msg_b_id = 0; const char *value = NULL; value = crm_element_value_const(a_msg, F_CIB_CALLID); msg_a_id = crm_parse_int(value, NULL); value = crm_element_value_const(b_msg, F_CIB_CALLID); msg_b_id = crm_parse_int(value, NULL); if (msg_a_id == msg_b_id) { return 0; } else if (msg_a_id < msg_b_id) { return -1; } return 1; } #if SUPPORT_HEARTBEAT void cib_ha_peer_callback(HA_Message * msg, void *private_data) { xmlNode *xml = convert_ha_message(NULL, msg, __FUNCTION__); cib_peer_callback(xml, private_data); free_xml(xml); } #endif void cib_peer_callback(xmlNode * msg, void *private_data) { const char *reason = NULL; const char *originator = crm_element_value(msg, F_ORIG); if (originator == NULL || crm_str_eq(originator, cib_our_uname, TRUE)) { /* message is from ourselves */ + int bcast_id = 0; + if (!(crm_element_value_int(msg, F_CIB_LOCAL_NOTIFY_ID, &bcast_id))) { + check_local_notify(bcast_id); + } return; } else if (crm_peer_cache == NULL) { reason = "membership not established"; goto bail; } if (crm_element_value(msg, F_CIB_CLIENTNAME) == NULL) { crm_xml_add(msg, F_CIB_CLIENTNAME, originator); } /* crm_log_xml_trace("Peer[inbound]", msg); */ cib_process_request(msg, FALSE, TRUE, TRUE, NULL); return; bail: if (reason) { const char *seq = crm_element_value(msg, F_SEQ); const char *op = crm_element_value(msg, F_CIB_OPERATION); crm_warn("Discarding %s message (%s) from %s: %s", op, seq, originator, reason); } } void cib_client_status_callback(const char *node, const char *client, const char *status, void *private) { crm_node_t *peer = NULL; if (safe_str_eq(client, CRM_SYSTEM_CIB)) { crm_info("Status update: Client %s/%s now has status [%s]", node, client, status); if (safe_str_eq(status, JOINSTATUS)) { status = ONLINESTATUS; } else if (safe_str_eq(status, LEAVESTATUS)) { status = OFFLINESTATUS; } peer = crm_get_peer(0, node); crm_update_peer_proc(__FUNCTION__, peer, crm_proc_cib, status); } return; } #if SUPPORT_HEARTBEAT extern oc_ev_t *cib_ev_token; static void *ccm_library = NULL; int (*ccm_api_callback_done) (void *cookie) = NULL; int (*ccm_api_handle_event) (const oc_ev_t * token) = NULL; int cib_ccm_dispatch(gpointer user_data) { int rc = 0; oc_ev_t *ccm_token = (oc_ev_t *) user_data; crm_trace("received callback"); if (ccm_api_handle_event == NULL) { ccm_api_handle_event = find_library_function(&ccm_library, CCM_LIBRARY, "oc_ev_handle_event"); } rc = (*ccm_api_handle_event) (ccm_token); if (0 == rc) { return 0; } crm_err("CCM connection appears to have failed: rc=%d.", rc); /* eventually it might be nice to recover and reconnect... but until then... */ crm_err("Exiting to recover from CCM connection failure"); exit(2); return -1; } int current_instance = 0; void cib_ccm_msg_callback(oc_ed_t event, void *cookie, size_t size, const void *data) { gboolean update_id = FALSE; const oc_ev_membership_t *membership = data; CRM_ASSERT(membership != NULL); crm_info("Processing CCM event=%s (id=%d)", ccm_event_name(event), membership->m_instance); if (current_instance > membership->m_instance) { crm_err("Membership instance ID went backwards! %d->%d", current_instance, membership->m_instance); CRM_ASSERT(current_instance <= membership->m_instance); } switch (event) { case OC_EV_MS_NEW_MEMBERSHIP: case OC_EV_MS_INVALID: update_id = TRUE; break; case OC_EV_MS_PRIMARY_RESTORED: update_id = TRUE; break; case OC_EV_MS_NOT_PRIMARY: crm_trace("Ignoring transitional CCM event: %s", ccm_event_name(event)); break; case OC_EV_MS_EVICTED: crm_err("Evicted from CCM: %s", ccm_event_name(event)); break; default: crm_err("Unknown CCM event: %d", event); } if (update_id) { unsigned int lpc = 0; CRM_CHECK(membership != NULL, return); current_instance = membership->m_instance; for (lpc = 0; lpc < membership->m_n_out; lpc++) { crm_update_ccm_node(membership, lpc + membership->m_out_idx, CRM_NODE_LOST, current_instance); } for (lpc = 0; lpc < membership->m_n_member; lpc++) { crm_update_ccm_node(membership, lpc + membership->m_memb_idx, CRM_NODE_ACTIVE, current_instance); } } if (ccm_api_callback_done == NULL) { ccm_api_callback_done = find_library_function(&ccm_library, CCM_LIBRARY, "oc_ev_callback_done"); } (*ccm_api_callback_done) (cookie); return; } #endif gboolean can_write(int flags) { return TRUE; } static gboolean cib_force_exit(gpointer data) { crm_notice("Forcing exit!"); terminate_cib(__FUNCTION__, TRUE); return FALSE; } static void disconnect_remote_client(gpointer key, gpointer value, gpointer user_data) { cib_client_t *a_client = value; crm_err("Disconnecting %s... Not implemented", crm_str(a_client->name)); } void cib_shutdown(int nsig) { struct qb_ipcs_stats srv_stats; if (cib_shutdown_flag == FALSE) { int disconnects = 0; qb_ipcs_connection_t *c = NULL; cib_shutdown_flag = TRUE; for(c = qb_ipcs_connection_first_get(ipcs_rw); c != NULL; c = qb_ipcs_connection_next_get(ipcs_rw, c)) { crm_debug("Disconnecting r/w client %p...", c); qb_ipcs_disconnect(c); qb_ipcs_connection_unref(c); disconnects++; } for(c = qb_ipcs_connection_first_get(ipcs_ro); c != NULL; c = qb_ipcs_connection_next_get(ipcs_ro, c)) { crm_debug("Disconnecting r/o client %p...", c); qb_ipcs_disconnect(c); qb_ipcs_connection_unref(c); disconnects++; } for(c = qb_ipcs_connection_first_get(ipcs_shm); c != NULL; c = qb_ipcs_connection_next_get(ipcs_shm, c)) { crm_debug("Disconnecting non-blocking r/w client %p...", c); qb_ipcs_disconnect(c); qb_ipcs_connection_unref(c); disconnects++; } disconnects += g_hash_table_size(client_list); crm_debug("Disconnecting %d remote clients", g_hash_table_size(client_list)); g_hash_table_foreach(client_list, disconnect_remote_client, NULL); crm_info("Disconnected %d clients", disconnects); } qb_ipcs_stats_get(ipcs_rw, &srv_stats, QB_FALSE); if(g_hash_table_size(client_list) == 0) { crm_info("All clients disconnected (%d)", srv_stats.active_connections); initiate_exit(); } else { crm_info("Waiting on %d clients to disconnect (%d)", g_hash_table_size(client_list), srv_stats.active_connections); } } void initiate_exit(void) { int active = 0; xmlNode *leaving = NULL; active = crm_active_peers(); if (active < 2) { terminate_cib(__FUNCTION__, FALSE); return; } crm_info("Sending disconnect notification to %d peers...", active); leaving = create_xml_node(NULL, "exit-notification"); crm_xml_add(leaving, F_TYPE, "cib"); crm_xml_add(leaving, F_CIB_OPERATION, "cib_shutdown_req"); send_cluster_message(NULL, crm_msg_cib, leaving, TRUE); free_xml(leaving); g_timeout_add(crm_get_msec("5s"), cib_force_exit, NULL); } extern int remote_fd; extern int remote_tls_fd; extern void terminate_ais_connection(void); void terminate_cib(const char *caller, gboolean fast) { if (remote_fd > 0) { close(remote_fd); } if (remote_tls_fd > 0) { close(remote_tls_fd); } if(!fast) { if(is_heartbeat_cluster()) { #if SUPPORT_HEARTBEAT if (hb_conn != NULL) { crm_info("%s: Disconnecting heartbeat", caller); hb_conn->llc_ops->signoff(hb_conn, FALSE); } else { crm_err("%s: No heartbeat connection", caller); } #endif } else { #if SUPPORT_COROSYNC crm_info("%s: Disconnecting corosync", caller); terminate_ais_connection(); #endif } } uninitializeCib(); crm_info("%s: Exiting%s...", caller, fast?" fast":""); qb_log_fini(); if (fast) { exit(LSB_EXIT_GENERIC); } else if(mainloop != NULL && g_main_is_running(mainloop)) { g_main_quit(mainloop); } else { exit(LSB_EXIT_OK); } } diff --git a/cib/main.c b/cib/main.c index 4b85ab2ace..b8db38f324 100644 --- a/cib/main.c +++ b/cib/main.c @@ -1,594 +1,598 @@ /* * Copyright (C) 2004 Andrew Beekhof * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if HAVE_LIBXML2 # include #endif #ifdef HAVE_GETOPT_H # include #endif #if HAVE_BZLIB_H # include #endif extern int init_remote_listener(int port, gboolean encrypted); extern gboolean stand_alone; gboolean cib_shutdown_flag = FALSE; enum cib_errors cib_status = cib_ok; #if SUPPORT_HEARTBEAT oc_ev_t *cib_ev_token; ll_cluster_t *hb_conn = NULL; extern void oc_ev_special(const oc_ev_t *, oc_ev_class_t, int); gboolean cib_register_ha(ll_cluster_t * hb_cluster, const char *client_name); #endif extern void terminate_cib(const char *caller, gboolean fast); GMainLoop *mainloop = NULL; const char *cib_root = CRM_CONFIG_DIR; char *cib_our_uname = NULL; gboolean preserve_status = FALSE; gboolean cib_writes_enabled = TRUE; int remote_fd = 0; int remote_tls_fd = 0; void usage(const char *cmd, int exit_status); int cib_init(void); void cib_shutdown(int nsig); gboolean startCib(const char *filename); extern int write_cib_contents(gpointer p); GHashTable *client_list = NULL; GHashTable *config_hash = NULL; +GHashTable *local_notify_queue = NULL; char *channel1 = NULL; char *channel2 = NULL; char *channel3 = NULL; char *channel4 = NULL; char *channel5 = NULL; #define OPTARGS "maswr:V?" void cib_cleanup(void); static void cib_enable_writes(int nsig) { crm_info("(Re)enabling disk writes"); cib_writes_enabled = TRUE; } static void log_cib_client(gpointer key, gpointer value, gpointer user_data) { cib_client_t *a_client = value; crm_info("Client %s", crm_str(a_client->name)); } int main(int argc, char **argv) { int flag; int rc = 0; int argerr = 0; #ifdef HAVE_GETOPT_H int option_index = 0; /* *INDENT-OFF* */ static struct option long_options[] = { {"per-action-cib", 0, 0, 'a'}, {"stand-alone", 0, 0, 's'}, {"disk-writes", 0, 0, 'w'}, {"cib-root", 1, 0, 'r'}, {"verbose", 0, 0, 'V'}, {"help", 0, 0, '?'}, {"metadata", 0, 0, 'm'}, {0, 0, 0, 0} }; /* *INDENT-ON* */ #endif struct passwd *pwentry = NULL; crm_log_init(NULL, LOG_INFO, TRUE, FALSE, argc, argv, FALSE); mainloop_add_signal(SIGTERM, cib_shutdown); mainloop_add_signal(SIGPIPE, cib_enable_writes); cib_writer = mainloop_add_trigger(G_PRIORITY_LOW, write_cib_contents, NULL); crm_peer_init(); client_list = g_hash_table_new(crm_str_hash, g_str_equal); while (1) { #ifdef HAVE_GETOPT_H flag = getopt_long(argc, argv, OPTARGS, long_options, &option_index); #else flag = getopt(argc, argv, OPTARGS); #endif if (flag == -1) break; switch (flag) { case 'V': crm_bump_log_level(); break; case 's': stand_alone = TRUE; preserve_status = TRUE; cib_writes_enabled = FALSE; pwentry = getpwnam(CRM_DAEMON_USER); CRM_CHECK(pwentry != NULL, crm_perror(LOG_ERR, "Invalid uid (%s) specified", CRM_DAEMON_USER); return 100); rc = setgid(pwentry->pw_gid); if (rc < 0) { crm_perror(LOG_ERR, "Could not set group to %d", pwentry->pw_gid); return 100; } rc = setuid(pwentry->pw_uid); if (rc < 0) { crm_perror(LOG_ERR, "Could not set user to %d", pwentry->pw_uid); return 100; } break; case '?': /* Help message */ usage(crm_system_name, LSB_EXIT_OK); break; case 'w': cib_writes_enabled = TRUE; break; case 'r': cib_root = optarg; break; case 'm': cib_metadata(); return 0; default: ++argerr; break; } } if (argc - optind == 1 && safe_str_eq("metadata", argv[optind])) { cib_metadata(); return 0; } if (optind > argc) { ++argerr; } if (argerr) { usage(crm_system_name, LSB_EXIT_GENERIC); } if (crm_is_writable(cib_root, NULL, CRM_DAEMON_USER, CRM_DAEMON_GROUP, FALSE) == FALSE) { crm_err("Bad permissions on %s. Terminating", cib_root); fprintf(stderr, "ERROR: Bad permissions on %s. See logs for details\n", cib_root); fflush(stderr); return 100; } /* read local config file */ rc = cib_init(); CRM_CHECK(g_hash_table_size(client_list) == 0, crm_warn("Not all clients gone at exit")); g_hash_table_foreach(client_list, log_cib_client, NULL); cib_cleanup(); #if SUPPORT_HEARTBEAT if (hb_conn) { hb_conn->llc_ops->delete(hb_conn); } #endif crm_info("Done"); return rc; } void cib_cleanup(void) { crm_peer_destroy(); + if (local_notify_queue) { + g_hash_table_destroy(local_notify_queue); + } g_hash_table_destroy(config_hash); g_hash_table_destroy(client_list); free(cib_our_uname); #if HAVE_LIBXML2 crm_xml_cleanup(); #endif free(channel1); free(channel2); free(channel3); free(channel4); free(channel5); } unsigned long cib_num_ops = 0; const char *cib_stat_interval = "10min"; unsigned long cib_num_local = 0, cib_num_updates = 0, cib_num_fail = 0; unsigned long cib_bad_connects = 0, cib_num_timeouts = 0; #if SUPPORT_HEARTBEAT gboolean ccm_connect(void); static void ccm_connection_destroy(gpointer user_data) { crm_err("CCM connection failed... blocking while we reconnect"); CRM_ASSERT(ccm_connect()); return; } static void *ccm_library = NULL; gboolean ccm_connect(void) { gboolean did_fail = TRUE; int num_ccm_fails = 0; int max_ccm_fails = 30; int ret; int cib_ev_fd; int (*ccm_api_register) (oc_ev_t ** token) = find_library_function(&ccm_library, CCM_LIBRARY, "oc_ev_register"); int (*ccm_api_set_callback) (const oc_ev_t * token, oc_ev_class_t class, oc_ev_callback_t * fn, oc_ev_callback_t ** prev_fn) = find_library_function(&ccm_library, CCM_LIBRARY, "oc_ev_set_callback"); void (*ccm_api_special) (const oc_ev_t *, oc_ev_class_t, int) = find_library_function(&ccm_library, CCM_LIBRARY, "oc_ev_special"); int (*ccm_api_activate) (const oc_ev_t * token, int *fd) = find_library_function(&ccm_library, CCM_LIBRARY, "oc_ev_activate"); int (*ccm_api_unregister) (oc_ev_t * token) = find_library_function(&ccm_library, CCM_LIBRARY, "oc_ev_unregister"); static struct mainloop_fd_callbacks ccm_fd_callbacks = { .dispatch = cib_ccm_dispatch, .destroy = ccm_connection_destroy, }; while (did_fail) { did_fail = FALSE; crm_info("Registering with CCM..."); ret = (*ccm_api_register) (&cib_ev_token); if (ret != 0) { did_fail = TRUE; } if (did_fail == FALSE) { crm_trace("Setting up CCM callbacks"); ret = (*ccm_api_set_callback) (cib_ev_token, OC_EV_MEMB_CLASS, cib_ccm_msg_callback, NULL); if (ret != 0) { crm_warn("CCM callback not set"); did_fail = TRUE; } } if (did_fail == FALSE) { (*ccm_api_special) (cib_ev_token, OC_EV_MEMB_CLASS, 0); crm_trace("Activating CCM token"); ret = (*ccm_api_activate) (cib_ev_token, &cib_ev_fd); if (ret != 0) { crm_warn("CCM Activation failed"); did_fail = TRUE; } } if (did_fail) { num_ccm_fails++; (*ccm_api_unregister) (cib_ev_token); if (num_ccm_fails < max_ccm_fails) { crm_warn("CCM Connection failed %d times (%d max)", num_ccm_fails, max_ccm_fails); sleep(3); } else { crm_err("CCM Activation failed %d (max) times", num_ccm_fails); return FALSE; } } } crm_debug("CCM Activation passed... all set to go!"); mainloop_add_fd("heartbeat-ccm", cib_ev_fd, cib_ev_token, &ccm_fd_callbacks); return TRUE; } #endif #if SUPPORT_COROSYNC static gboolean cib_ais_dispatch(AIS_Message * wrapper, char *data, int sender) { xmlNode *xml = NULL; if (wrapper->header.id == crm_class_cluster) { xml = string2xml(data); if (xml == NULL) { goto bail; } crm_xml_add(xml, F_ORIG, wrapper->sender.uname); crm_xml_add_int(xml, F_SEQ, wrapper->id); cib_peer_callback(xml, NULL); } free_xml(xml); return TRUE; bail: crm_err("Invalid XML: '%.120s'", data); return TRUE; } static void cib_ais_destroy(gpointer user_data) { if (cib_shutdown_flag) { crm_info("Corosync disconnection complete"); } else { crm_err("Corosync connection lost! Exiting."); terminate_cib(__FUNCTION__, TRUE); } } #endif static void cib_peer_update_callback(enum crm_status_type type, crm_node_t * node, const void *data) { #if 0 /* crm_active_peers(crm_proc_cib) appears to give the wrong answer * sometimes, this might help figure out why */ if(type == crm_status_nstate) { crm_info("status: %s is now %s (was %s)", node->uname, node->state, (const char *)data); if (safe_str_eq(CRMD_STATE_ACTIVE, node->state)) { return; } } else if(type == crm_status_processes) { uint32_t old = 0; if (data) { old = *(const uint32_t *)data; } if ((node->processes ^ old) & crm_proc_cib) { crm_info("status: cib process on %s is now %sactive", node->uname, is_set(node->processes, crm_proc_cib)?"":"in"); } else { return; } } else { return; } #endif if(cib_shutdown_flag && crm_active_peers() < 2 && g_hash_table_size(client_list) == 0) { crm_info("No more peers"); terminate_cib(__FUNCTION__, FALSE); } } #if SUPPORT_HEARTBEAT static void cib_ha_connection_destroy(gpointer user_data) { if (cib_shutdown_flag) { crm_info("Heartbeat disconnection complete... exiting"); terminate_cib(__FUNCTION__, FALSE); } else { crm_err("Heartbeat connection lost! Exiting."); terminate_cib(__FUNCTION__, TRUE); } } #endif int cib_init(void) { config_hash = g_hash_table_new_full(crm_str_hash, g_str_equal, g_hash_destroy_str, g_hash_destroy_str); if (startCib("cib.xml") == FALSE) { crm_crit("Cannot start CIB... terminating"); exit(1); } if (stand_alone == FALSE) { void *dispatch = NULL; void *destroy = NULL; if (is_openais_cluster()) { #if SUPPORT_COROSYNC destroy = cib_ais_destroy; dispatch = cib_ais_dispatch; #endif } else if(is_heartbeat_cluster()) { #if SUPPORT_HEARTBEAT dispatch = cib_ha_peer_callback; destroy = cib_ha_connection_destroy; #endif } if (crm_cluster_connect(&cib_our_uname, NULL, dispatch, destroy, #if SUPPORT_HEARTBEAT &hb_conn #else NULL #endif ) == FALSE) { crm_crit("Cannot sign in to the cluster... terminating"); exit(100); } if (is_openais_cluster()) { crm_set_status_callback(&cib_peer_update_callback); } #if SUPPORT_HEARTBEAT if (is_heartbeat_cluster()) { gboolean was_error = FALSE; if (was_error == FALSE) { if (HA_OK != hb_conn->llc_ops->set_cstatus_callback(hb_conn, cib_client_status_callback, hb_conn)) { crm_err("Cannot set cstatus callback: %s", hb_conn->llc_ops->errmsg(hb_conn)); was_error = TRUE; } } if (was_error == FALSE) { was_error = (ccm_connect() == FALSE); } if (was_error == FALSE) { /* Async get client status information in the cluster */ crm_info("Requesting the list of configured nodes"); hb_conn->llc_ops->client_status(hb_conn, NULL, CRM_SYSTEM_CIB, -1); } } #endif } else { cib_our_uname = crm_strdup("localhost"); } ipcs_ro = mainloop_add_ipc_server(cib_channel_ro, QB_IPC_NATIVE, &ipc_ro_callbacks); ipcs_rw = mainloop_add_ipc_server(cib_channel_rw, QB_IPC_NATIVE, &ipc_rw_callbacks); ipcs_shm = mainloop_add_ipc_server(cib_channel_shm, QB_IPC_SHM, &ipc_rw_callbacks); if (stand_alone) { cib_is_master = TRUE; } if (ipcs_ro != NULL && ipcs_rw != NULL && ipcs_shm != NULL) { /* Create the mainloop and run it... */ mainloop = g_main_new(FALSE); crm_info("Starting %s mainloop", crm_system_name); g_main_run(mainloop); } else { crm_err("Couldnt start all IPC channels, exiting."); return -1; } qb_ipcs_destroy(ipcs_ro); qb_ipcs_destroy(ipcs_rw); qb_ipcs_destroy(ipcs_shm); return 0; } void usage(const char *cmd, int exit_status) { FILE *stream; stream = exit_status ? stderr : stdout; fprintf(stream, "usage: %s [-%s]\n", cmd, OPTARGS); fprintf(stream, "\t--%s (-%c)\t\tTurn on debug info." " Additional instances increase verbosity\n", "verbose", 'V'); fprintf(stream, "\t--%s (-%c)\t\tThis help message\n", "help", '?'); fprintf(stream, "\t--%s (-%c)\t\tShow configurable cib options\n", "metadata", 'm'); fprintf(stream, "\t--%s (-%c)\tAdvanced use only\n", "per-action-cib", 'a'); fprintf(stream, "\t--%s (-%c)\tAdvanced use only\n", "stand-alone", 's'); fprintf(stream, "\t--%s (-%c)\tAdvanced use only\n", "disk-writes", 'w'); fprintf(stream, "\t--%s (-%c)\t\tAdvanced use only\n", "cib-root", 'r'); fflush(stream); exit(exit_status); } gboolean startCib(const char *filename) { gboolean active = FALSE; xmlNode *cib = readCibXmlFile(cib_root, filename, !preserve_status); CRM_ASSERT(cib != NULL); if (activateCibXml(cib, TRUE, "start") == 0) { int port = 0; const char *port_s = NULL; active = TRUE; cib_read_config(config_hash, cib); port_s = crm_element_value(cib, "remote-tls-port"); if (port_s) { port = crm_parse_int(port_s, "0"); remote_tls_fd = init_remote_listener(port, TRUE); } port_s = crm_element_value(cib, "remote-clear-port"); if (port_s) { port = crm_parse_int(port_s, "0"); remote_fd = init_remote_listener(port, FALSE); } crm_info("CIB Initialization completed successfully"); } return active; } diff --git a/include/crm/cib.h b/include/crm/cib.h index f7fc25c024..90cb8ee1a5 100644 --- a/include/crm/cib.h +++ b/include/crm/cib.h @@ -1,311 +1,312 @@ /* * Copyright (C) 2004 Andrew Beekhof * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef CIB__H # define CIB__H # include # include # define CIB_FEATURE_SET "2.0" # define USE_PESKY_FRAGMENTS 1 /* use compare_version() for doing comparisons */ enum cib_variant { cib_undefined, cib_native, cib_file, cib_remote, cib_database, cib_edir }; enum cib_state { cib_connected_command, cib_connected_query, cib_disconnected }; enum cib_conn_type { cib_command, cib_query, cib_no_connection, cib_command_nonblocking, }; /* *INDENT-OFF* */ enum cib_call_options { cib_none = 0x00000000, cib_verbose = 0x00000001, cib_xpath = 0x00000002, cib_multiple = 0x00000004, cib_can_create = 0x00000008, cib_discard_reply = 0x00000010, cib_no_children = 0x00000020, cib_scope_local = 0x00000100, cib_dryrun = 0x00000200, cib_sync_call = 0x00001000, cib_inhibit_notify = 0x00010000, cib_quorum_override = 0x00100000, cib_inhibit_bcast = 0x01000000, cib_force_diff = 0x10000000 }; #define cib_default_options = cib_none enum cib_errors { cib_ok = 0, cib_operation = -1, cib_create_msg = -2, cib_not_connected = -3, cib_not_authorized = -4, cib_send_failed = -5, cib_reply_failed = -6, cib_return_code = -7, cib_output_ptr = -8, cib_output_data = -9, cib_connection = -10, cib_authentication = -11, cib_missing = -12, cib_variant = -28, CIBRES_MISSING_ID = -13, CIBRES_MISSING_TYPE = -14, CIBRES_MISSING_FIELD = -15, CIBRES_OBJTYPE_MISMATCH = -16, CIBRES_CORRUPT = -17, CIBRES_OTHER = -18, cib_unknown = -19, cib_STALE = -20, cib_EXISTS = -21, cib_NOTEXISTS = -22, cib_ACTIVATION = -23, cib_NOSECTION = -24, cib_NOOBJECT = -25, cib_NOPARENT = -26, cib_NODECOPY = -27, cib_NOTSUPPORTED = -29, cib_registration_msg = -30, cib_callback_token = -31, cib_callback_register = -32, cib_msg_field_add = -33, cib_client_gone = -34, cib_not_master = -35, cib_client_corrupt = -36, cib_master_timeout = -37, cib_revision_unsupported= -38, cib_revision_unknown = -39, cib_missing_data = -40, cib_remote_timeout = -41, cib_no_quorum = -42, cib_diff_failed = -43, cib_diff_resync = -44, cib_old_data = -45, cib_id_check = -46, cib_dtd_validation = -47, cib_bad_section = -48, cib_bad_digest = -49, cib_bad_permissions = -50, cib_bad_config = -51, cib_invalid_argument = -52, cib_transform_failed = -53, cib_permission_denied = -54, }; /* *INDENT-ON* */ enum cib_update_op { CIB_UPDATE_OP_NONE = 0, CIB_UPDATE_OP_ADD, CIB_UPDATE_OP_MODIFY, CIB_UPDATE_OP_DELETE, CIB_UPDATE_OP_MAX }; enum cib_section { cib_section_none, cib_section_all, cib_section_nodes, cib_section_constraints, cib_section_resources, cib_section_crmconfig, cib_section_status }; # define CIB_OP_SLAVE "cib_slave" # define CIB_OP_SLAVEALL "cib_slave_all" # define CIB_OP_MASTER "cib_master" # define CIB_OP_SYNC "cib_sync" # define CIB_OP_SYNC_ONE "cib_sync_one" # define CIB_OP_ISMASTER "cib_ismaster" # define CIB_OP_BUMP "cib_bump" # define CIB_OP_QUERY "cib_query" # define CIB_OP_CREATE "cib_create" # define CIB_OP_UPDATE "cib_update" # define CIB_OP_MODIFY "cib_modify" # define CIB_OP_DELETE "cib_delete" # define CIB_OP_ERASE "cib_erase" # define CIB_OP_REPLACE "cib_replace" # define CIB_OP_NOTIFY "cib_notify" # define CIB_OP_APPLY_DIFF "cib_apply_diff" # define CIB_OP_UPGRADE "cib_upgrade" # define CIB_OP_DELETE_ALT "cib_delete_alt" # define F_CIB_CLIENTID "cib_clientid" # define F_CIB_CALLOPTS "cib_callopt" # define F_CIB_CALLID "cib_callid" # define F_CIB_CALLDATA "cib_calldata" # define F_CIB_OPERATION "cib_op" # define F_CIB_ISREPLY "cib_isreplyto" # define F_CIB_SECTION "cib_section" # define F_CIB_HOST "cib_host" # define F_CIB_RC "cib_rc" # define F_CIB_DELEGATED "cib_delegated_from" # define F_CIB_OBJID "cib_object" # define F_CIB_OBJTYPE "cib_object_type" # define F_CIB_EXISTING "cib_existing_object" # define F_CIB_SEENCOUNT "cib_seen" # define F_CIB_TIMEOUT "cib_timeout" # define F_CIB_UPDATE "cib_update" # define F_CIB_CALLBACK_TOKEN "cib_async_id" # define F_CIB_GLOBAL_UPDATE "cib_update" # define F_CIB_UPDATE_RESULT "cib_update_result" # define F_CIB_CLIENTNAME "cib_clientname" # define F_CIB_NOTIFY_TYPE "cib_notify_type" # define F_CIB_NOTIFY_ACTIVATE "cib_notify_activate" # define F_CIB_UPDATE_DIFF "cib_update_diff" # define F_CIB_USER "cib_user" +# define F_CIB_LOCAL_NOTIFY_ID "cib_local_notify_id" # define T_CIB "cib" # define T_CIB_NOTIFY "cib_notify" /* notify sub-types */ # define T_CIB_PRE_NOTIFY "cib_pre_notify" # define T_CIB_POST_NOTIFY "cib_post_notify" # define T_CIB_UPDATE_CONFIRM "cib_update_confirmation" # define T_CIB_DIFF_NOTIFY "cib_diff_notify" # define T_CIB_REPLACE_NOTIFY "cib_refresh_notify" # define cib_channel_ro "cib_ro" # define cib_channel_rw "cib_rw" # define cib_channel_shm "cib_shm" typedef struct cib_s cib_t; typedef struct cib_api_operations_s { int (*variant_op) (cib_t * cib, const char *op, const char *host, const char *section, xmlNode * data, xmlNode ** output_data, int call_options); int (*signon) (cib_t * cib, const char *name, enum cib_conn_type type); int (*signon_raw) (cib_t * cib, const char *name, enum cib_conn_type type, int *async_fd, int *unused); int (*signoff) (cib_t * cib); int (*free) (cib_t * cib); int (*set_op_callback) (cib_t * cib, void (*callback) (const xmlNode * msg, int callid, int rc, xmlNode * output)); int (*add_notify_callback) (cib_t * cib, const char *event, void (*callback) (const char *event, xmlNode * msg)); int (*del_notify_callback) (cib_t * cib, const char *event, void (*callback) (const char *event, xmlNode * msg)); int (*set_connection_dnotify) (cib_t * cib, void (*dnotify) (gpointer user_data)); int (*inputfd) (cib_t * cib); int (*noop) (cib_t * cib, int call_options); int (*ping) (cib_t * cib, xmlNode ** output_data, int call_options); int (*query) (cib_t * cib, const char *section, xmlNode ** output_data, int call_options); int (*query_from) (cib_t * cib, const char *host, const char *section, xmlNode ** output_data, int call_options); int (*is_master) (cib_t * cib); int (*set_master) (cib_t * cib, int call_options); int (*set_slave) (cib_t * cib, int call_options); int (*set_slave_all) (cib_t * cib, int call_options); int (*sync) (cib_t * cib, const char *section, int call_options); int (*sync_from) (cib_t * cib, const char *host, const char *section, int call_options); int (*upgrade) (cib_t * cib, int call_options); int (*bump_epoch) (cib_t * cib, int call_options); int (*create) (cib_t * cib, const char *section, xmlNode * data, int call_options); int (*modify) (cib_t * cib, const char *section, xmlNode * data, int call_options); int (*update) (cib_t * cib, const char *section, xmlNode * data, int call_options); int (*replace) (cib_t * cib, const char *section, xmlNode * data, int call_options); int (*delete) (cib_t * cib, const char *section, xmlNode * data, int call_options); int (*erase) (cib_t * cib, xmlNode ** output_data, int call_options); int (*delete_absolute) (cib_t * cib, const char *section, xmlNode * data, int call_options); int (*quit) (cib_t * cib, int call_options); int (*register_notification) (cib_t * cib, const char *callback, int enabled); gboolean(*register_callback) (cib_t * cib, int call_id, int timeout, gboolean only_success, void *user_data, const char *callback_name, void (*callback) (xmlNode *, int, int, xmlNode *, void *)); int (*delegated_variant_op) (cib_t * cib, const char *op, const char *host, const char *section, xmlNode * data, xmlNode ** output_data, int call_options, const char *user_name); } cib_api_operations_t; struct cib_s { enum cib_state state; enum cib_conn_type type; enum cib_variant variant; int call_id; int call_timeout; void *variant_opaque; GList *notify_list; void (*op_callback) (const xmlNode * msg, int call_id, int rc, xmlNode * output); cib_api_operations_t *cmds; }; /* Core functions */ cib_t *cib_new(void); cib_t *cib_native_new(void); cib_t *cib_file_new(const char *filename); cib_t *cib_remote_new(const char *server, const char *user, const char *passwd, int port, gboolean encrypted); cib_t *cib_new_no_shadow(void); char *get_shadow_file(const char *name); cib_t *cib_shadow_new(const char *name); void cib_delete(cib_t * cib); void cib_dump_pending_callbacks(void); int num_cib_op_callbacks(void); void remove_cib_op_callback(int call_id, gboolean all_callbacks); # define add_cib_op_callback(cib, id, flag, data, fn) cib->cmds->register_callback(cib, id, 120, flag, data, #fn, fn) # include # include # define CIB_LIBRARY "libcib.so.1" #endif