diff --git a/crm/cib/callbacks.c b/crm/cib/callbacks.c
index f17c05c017..9a8d84c1be 100644
--- a/crm/cib/callbacks.c
+++ b/crm/cib/callbacks.c
@@ -1,1951 +1,1966 @@
-/* $Id: callbacks.c,v 1.138 2006/07/08 13:45:23 andrew Exp $ */
+/* $Id: callbacks.c,v 1.139 2006/07/09 09:55:57 andrew Exp $ */
/*
* Copyright (C) 2004 Andrew Beekhof <andrew@beekhof.net>
*
* 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 2.1 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <portability.h>
#include <sys/param.h>
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <hb_api.h>
#include <clplumbing/uids.h>
#include <clplumbing/cl_uuid.h>
#include <clplumbing/cl_malloc.h>
#include <clplumbing/Gmain_timeout.h>
#include <crm/crm.h>
#include <crm/cib.h>
#include <crm/msg_xml.h>
#include <crm/common/ipc.h>
#include <crm/common/ctrl.h>
#include <crm/common/xml.h>
#include <crm/common/msg.h>
#include <cibio.h>
#include <callbacks.h>
#include <cibmessages.h>
#include <cibprimatives.h>
#include <notify.h>
#include <crm/dmalloc_wrapper.h>
extern GMainLoop* mainloop;
extern gboolean cib_shutdown_flag;
extern gboolean stand_alone;
extern enum cib_errors cib_update_counter(
crm_data_t *xml_obj, const char *field, gboolean reset);
extern void GHFunc_count_peers(
gpointer key, gpointer value, gpointer user_data);
extern enum cib_errors revision_check(
crm_data_t *cib_update, crm_data_t *cib_copy, int flags);
void initiate_exit(void);
void terminate_ha_connection(const char *caller);
gint cib_GCompareFunc(gconstpointer a, gconstpointer b);
gboolean cib_msg_timeout(gpointer data);
void cib_GHFunc(gpointer key, gpointer value, gpointer user_data);
gboolean can_write(int flags);
HA_Message *cib_msg_copy(HA_Message *msg, gboolean with_data);
gboolean ccm_manual_check(gpointer data);
void send_cib_replace(const HA_Message *sync_request, const char *host);
void cib_process_request(
HA_Message *request, gboolean privileged, gboolean force_synchronous,
gboolean from_peer, cib_client_t *cib_client);
gboolean syncd_once = FALSE;
GHashTable *peer_hash = NULL;
int next_client_id = 0;
gboolean cib_is_master = FALSE;
gboolean cib_have_quorum = FALSE;
char * ccm_transition_id = NULL;
GHashTable *client_list = NULL;
GHashTable *ccm_membership = NULL;
extern const char *cib_our_uname;
extern ll_cluster_t *hb_conn;
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 longclock_t cib_call_time;
extern enum cib_errors cib_status;
static HA_Message *
cib_prepare_common(HA_Message *root, const char *section)
{
HA_Message *data = NULL;
/* extract the CIB from the fragment */
if(root == NULL) {
return NULL;
} else if(safe_str_eq(crm_element_name(root), XML_TAG_FRAGMENT)) {
data = find_xml_node(root, XML_TAG_CIB, TRUE);
if(data != NULL) {
crm_debug_3("Extracted CIB from "XML_TAG_FRAGMENT);
} else {
crm_log_xml_debug_4(root, "No CIB");
}
} else {
data = root;
crm_log_xml_debug_4(root, "cib:input");
}
/* grab the section specified for the command */
if(data != NULL && safe_str_eq(crm_element_name(data), XML_TAG_CIB)){
int rc = revision_check(data, the_cib, 0/* call_options */);
if(rc == cib_ok) {
data = get_object_root(section, data);
if(data != NULL) {
crm_debug_3("Extracted %s from CIB", section);
} else {
crm_log_xml_debug_4(root, "No Section");
}
} else {
crm_debug_2("Revision check failed");
}
}
return data;
}
static gboolean
verify_section(const char *section)
{
if(section == NULL) {
return TRUE;
} else if(safe_str_eq(section, XML_TAG_CIB)) {
return TRUE;
} else if(safe_str_eq(section, XML_CIB_TAG_STATUS)) {
return TRUE;
} else if(safe_str_eq(section, XML_CIB_TAG_CRMCONFIG)) {
return TRUE;
} else if(safe_str_eq(section, XML_CIB_TAG_NODES)) {
return TRUE;
} else if(safe_str_eq(section, XML_CIB_TAG_RESOURCES)) {
return TRUE;
} else if(safe_str_eq(section, XML_CIB_TAG_CONSTRAINTS)) {
return TRUE;
}
return FALSE;
}
static enum cib_errors
cib_prepare_none(HA_Message *request, HA_Message **data, const char **section)
{
*data = NULL;
*section = cl_get_string(request, F_CIB_SECTION);
if(verify_section(*section) == FALSE) {
return cib_bad_section;
}
return cib_ok;
}
static enum cib_errors
cib_prepare_data(HA_Message *request, HA_Message **data, const char **section)
{
HA_Message *input_fragment = cl_get_struct(request, F_CIB_CALLDATA);
*section = cl_get_string(request, F_CIB_SECTION);
*data = cib_prepare_common(input_fragment, *section);
if(verify_section(*section) == FALSE) {
return cib_bad_section;
}
return cib_ok;
}
static enum cib_errors
cib_prepare_sync(HA_Message *request, HA_Message **data, const char **section)
{
*section = cl_get_string(request, F_CIB_SECTION);
*data = request;
if(verify_section(*section) == FALSE) {
return cib_bad_section;
}
return cib_ok;
}
static enum cib_errors
cib_prepare_diff(HA_Message *request, HA_Message **data, const char **section)
{
HA_Message *input_fragment = cl_get_struct(request,F_CIB_UPDATE_DIFF);
*section = NULL;
if(input_fragment == NULL) {
input_fragment = cl_get_struct(request, F_CIB_CALLDATA);
}
*data = cib_prepare_common(input_fragment, NULL);
return cib_ok;
}
static enum cib_errors
cib_cleanup_query(const char *op, HA_Message **data, HA_Message **output)
{
CRM_DEV_ASSERT(*data == NULL);
return cib_ok;
}
static enum cib_errors
cib_cleanup_output(const char *op, HA_Message **data, HA_Message **output)
{
free_xml(*output);
return cib_ok;
}
static enum cib_errors
cib_cleanup_none(const char *op, HA_Message **data, HA_Message **output)
{
CRM_DEV_ASSERT(*data == NULL);
CRM_DEV_ASSERT(*output == NULL);
return cib_ok;
}
static enum cib_errors
cib_cleanup_sync(const char *op, HA_Message **data, HA_Message **output)
{
/* data is non-NULL but doesnt need to be free'd */
CRM_DEV_ASSERT(*output == NULL);
return cib_ok;
}
/*
typedef struct cib_operation_s
{
const char* operation;
gboolean modifies_cib;
gboolean needs_privileges;
gboolean needs_quorum;
enum cib_errors (*prepare)(HA_Message *, crm_data_t**, const char **);
enum cib_errors (*cleanup)(crm_data_t**, crm_data_t**);
enum cib_errors (*fn)(
const char *, int, const char *,
crm_data_t*, crm_data_t*, crm_data_t**, crm_data_t**);
} cib_operation_t;
*/
/* technically bump does modify the cib...
* but we want to split the "bump" from the "sync"
*/
cib_operation_t cib_server_ops[] = {
{NULL, FALSE, FALSE, FALSE, cib_prepare_none, cib_cleanup_none, cib_process_default},
{CIB_OP_QUERY, FALSE, FALSE, FALSE, cib_prepare_none, cib_cleanup_query, cib_process_query},
{CIB_OP_MODIFY, TRUE, TRUE, TRUE, cib_prepare_data, cib_cleanup_output, cib_process_modify},
{CIB_OP_UPDATE, TRUE, TRUE, TRUE, cib_prepare_data, cib_cleanup_output, cib_process_change},
{CIB_OP_APPLY_DIFF,TRUE, TRUE, TRUE, cib_prepare_diff, cib_cleanup_sync, cib_process_diff},
{CIB_OP_SLAVE, FALSE, TRUE, FALSE, cib_prepare_none, cib_cleanup_none, cib_process_readwrite},
{CIB_OP_SLAVEALL, FALSE, TRUE, FALSE, cib_prepare_none, cib_cleanup_none, cib_process_readwrite},
{CIB_OP_SYNC_ONE, FALSE, TRUE, FALSE, cib_prepare_sync, cib_cleanup_sync, cib_process_sync_one},
{CIB_OP_MASTER, FALSE, TRUE, FALSE, cib_prepare_none, cib_cleanup_none, cib_process_readwrite},
{CIB_OP_ISMASTER, FALSE, TRUE, FALSE, cib_prepare_none, cib_cleanup_none, cib_process_readwrite},
{CIB_OP_BUMP, TRUE, TRUE, TRUE, cib_prepare_none, cib_cleanup_output, cib_process_bump},
{CIB_OP_REPLACE, TRUE, TRUE, TRUE, cib_prepare_data, cib_cleanup_output, cib_process_replace},
{CIB_OP_CREATE, TRUE, TRUE, TRUE, cib_prepare_data, cib_cleanup_output, cib_process_change},
{CIB_OP_DELETE, TRUE, TRUE, TRUE, cib_prepare_data, cib_cleanup_output, cib_process_delete},
{CIB_OP_DELETE_ALT,TRUE, TRUE, TRUE, cib_prepare_data, cib_cleanup_output, cib_process_change},
{CIB_OP_SYNC, FALSE, TRUE, FALSE, cib_prepare_sync, cib_cleanup_sync, cib_process_sync},
{CRM_OP_QUIT, FALSE, TRUE, FALSE, cib_prepare_none, cib_cleanup_none, cib_process_quit},
{CRM_OP_PING, FALSE, FALSE, FALSE, cib_prepare_none, cib_cleanup_output, cib_process_ping},
{CIB_OP_ERASE, TRUE, TRUE, TRUE, cib_prepare_none, cib_cleanup_output, cib_process_erase},
{CRM_OP_NOOP, FALSE, FALSE, FALSE, cib_prepare_none, cib_cleanup_none, cib_process_default},
{"cib_shutdown_req",FALSE, TRUE, FALSE, cib_prepare_sync, cib_cleanup_sync, cib_process_shutdown_req},
};
int send_via_callback_channel(HA_Message *msg, const char *token);
enum cib_errors cib_process_command(
HA_Message *request, HA_Message **reply,
crm_data_t **cib_diff, gboolean privileged);
gboolean cib_common_callback(IPC_Channel *channel, cib_client_t *cib_client,
gboolean force_synchronous, gboolean privileged);
enum cib_errors cib_get_operation_id(const HA_Message * msg, int *operation);
gboolean cib_process_disconnect(IPC_Channel *channel, cib_client_t *cib_client);
int num_clients = 0;
static void
cib_ipc_connection_destroy(gpointer user_data)
{
cib_client_t *cib_client = user_data;
/* cib_process_disconnect */
if(cib_client == NULL) {
crm_debug_4("Destroying %p", user_data);
return;
}
if(cib_client->source != NULL) {
crm_debug_4("Deleting %s (%p) from mainloop",
cib_client->name, cib_client->source);
G_main_del_IPC_Channel(cib_client->source);
cib_client->source = NULL;
}
crm_debug_3("Destroying %s (%p)", cib_client->name, user_data);
num_clients--;
crm_debug("Num unfree'd clients: %d", num_clients);
START_stat_free_op();
crm_free(cib_client->name);
crm_free(cib_client->callback_id);
crm_free(cib_client->id);
crm_free(cib_client);
END_stat_free_op();
crm_debug_4("Freed the cib client");
return;
}
static cib_client_t *
cib_client_connect_common(
IPC_Channel *channel, const char *channel_name,
gboolean (*callback)(IPC_Channel *channel, gpointer user_data))
{
gboolean can_connect = TRUE;
cib_client_t *new_client = NULL;
crm_debug_3("Connecting channel");
if (channel == NULL) {
crm_err("Channel was NULL");
can_connect = FALSE;
cib_bad_connects++;
} else if (channel->ch_status != IPC_CONNECT) {
crm_err("Channel was disconnected");
can_connect = FALSE;
cib_bad_connects++;
} else if(channel_name == NULL) {
crm_err("user_data must contain channel name");
can_connect = FALSE;
cib_bad_connects++;
} else if(cib_shutdown_flag) {
crm_info("Ignoring new client [%d] during shutdown",
channel->farside_pid);
return NULL;
} else {
START_stat_free_op();
crm_malloc0(new_client, sizeof(cib_client_t));
END_stat_free_op();
num_clients++;
new_client->channel = channel;
new_client->channel_name = channel_name;
crm_debug_3("Created channel %p for channel %s",
new_client, new_client->channel_name);
channel->ops->set_recv_qlen(channel, 100);
channel->ops->set_send_qlen(channel, 400);
if(callback != NULL) {
new_client->source = G_main_add_IPC_Channel(
G_PRIORITY_DEFAULT, channel, FALSE, callback,
new_client, cib_ipc_connection_destroy);
}
crm_debug_3("Channel %s connected for client %s",
new_client->channel_name, new_client->id);
}
return new_client;
}
gboolean
cib_client_connect_rw_synch(IPC_Channel *channel, gpointer user_data)
{
cl_mem_stats_t saved_stats;
cib_client_t *new_client = NULL;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
new_client = cib_client_connect_common(
channel, cib_channel_ro_synchronous, cib_rw_synchronous_callback);
crm_diff_mem_stats(LOG_ERR, LOG_ERR, __PRETTY_FUNCTION__, NULL, &saved_stats);
if(new_client == NULL) {
return FALSE;
}
return TRUE;
}
gboolean
cib_client_connect_ro_synch(IPC_Channel *channel, gpointer user_data)
{
cl_mem_stats_t saved_stats;
cib_client_t *new_client = NULL;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
new_client = cib_client_connect_common(
channel, cib_channel_ro_synchronous, cib_ro_synchronous_callback);
crm_diff_mem_stats(LOG_ERR, LOG_ERR, __PRETTY_FUNCTION__, NULL, &saved_stats);
if(new_client == NULL) {
return FALSE;
}
return TRUE;
}
gboolean
cib_client_connect_rw_ro(IPC_Channel *channel, gpointer user_data)
{
cl_uuid_t client_id;
HA_Message *reg_msg = NULL;
cib_client_t *new_client = NULL;
char uuid_str[UU_UNPARSE_SIZEOF];
gboolean (*callback)(IPC_Channel *channel, gpointer user_data);
cl_mem_stats_t saved_stats;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
callback = cib_ro_callback;
if(safe_str_eq(user_data, cib_channel_rw)) {
callback = cib_rw_callback;
}
new_client = cib_client_connect_common(
channel,
callback==cib_ro_callback?cib_channel_ro:cib_channel_rw,
callback);
if(new_client == NULL) {
return FALSE;
}
cl_uuid_generate(&client_id);
cl_uuid_unparse(&client_id, uuid_str);
START_stat_free_op();
CRM_CHECK(new_client->id == NULL, crm_free(new_client->id));
new_client->id = crm_strdup(uuid_str);
END_stat_free_op();
cl_uuid_generate(&client_id);
cl_uuid_unparse(&client_id, uuid_str);
START_stat_free_op();
CRM_CHECK(new_client->callback_id == NULL, crm_free(new_client->callback_id));
new_client->callback_id = crm_strdup(uuid_str);
END_stat_free_op();
/* make sure we can find ourselves later for sync calls
* redirected to the master instance
*/
START_stat_free_op();
g_hash_table_insert(
client_list, new_client->id, new_client);
END_stat_free_op();
reg_msg = ha_msg_new(3);
ha_msg_add(reg_msg, F_CIB_OPERATION, CRM_OP_REGISTER);
ha_msg_add(reg_msg, F_CIB_CLIENTID, new_client->id);
ha_msg_add(
reg_msg, F_CIB_CALLBACK_TOKEN, new_client->callback_id);
send_ipc_message(channel, reg_msg);
crm_msg_del(reg_msg);
crm_diff_mem_stats(LOG_ERR, LOG_ERR, __PRETTY_FUNCTION__, NULL, &saved_stats);
return TRUE;
}
gboolean
cib_client_connect_null(IPC_Channel *channel, gpointer user_data)
{
cl_mem_stats_t saved_stats;
cib_client_t *new_client = NULL;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
new_client = cib_client_connect_common(
channel, cib_channel_callback, cib_null_callback);
crm_diff_mem_stats(LOG_ERR, LOG_ERR, __PRETTY_FUNCTION__, NULL, &saved_stats);
if(new_client == NULL) {
return FALSE;
}
return TRUE;
}
gboolean
cib_rw_callback(IPC_Channel *channel, gpointer user_data)
{
gboolean result = FALSE;
cl_mem_stats_t saved_stats;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
result = cib_common_callback(channel, user_data, FALSE, TRUE);
crm_diff_mem_stats(LOG_ERR, LOG_WARNING, __PRETTY_FUNCTION__, NULL, &saved_stats);
return result;
}
gboolean
cib_ro_synchronous_callback(IPC_Channel *channel, gpointer user_data)
{
gboolean result = FALSE;
cl_mem_stats_t saved_stats;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
result = cib_common_callback(channel, user_data, TRUE, FALSE);
crm_diff_mem_stats(LOG_ERR, LOG_WARNING, __PRETTY_FUNCTION__, NULL, &saved_stats);
return result;
}
gboolean
cib_rw_synchronous_callback(IPC_Channel *channel, gpointer user_data)
{
gboolean result = FALSE;
cl_mem_stats_t saved_stats;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
result = cib_common_callback(channel, user_data, TRUE, TRUE);
crm_diff_mem_stats(LOG_ERR, LOG_WARNING, __PRETTY_FUNCTION__, NULL, &saved_stats);
return result;
}
gboolean
cib_ro_callback(IPC_Channel *channel, gpointer user_data)
{
gboolean result = FALSE;
cl_mem_stats_t saved_stats;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
result = cib_common_callback(channel, user_data, FALSE, FALSE);
crm_diff_mem_stats(LOG_ERR, LOG_WARNING, __PRETTY_FUNCTION__, NULL, &saved_stats);
return result;
}
gboolean
cib_null_callback(IPC_Channel *channel, gpointer user_data)
{
gboolean keep_connection = TRUE;
HA_Message *op_request = NULL;
HA_Message *registered = NULL;
cib_client_t *cib_client = user_data;
cib_client_t *hash_client = NULL;
const char *type = NULL;
const char *uuid_ticket = NULL;
const char *client_name = NULL;
gboolean register_failed = FALSE;
cl_mem_stats_t saved_stats;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
if(cib_client == NULL) {
crm_err("Discarding IPC message from unknown source"
" on callback channel.");
return FALSE;
}
while(IPC_ISRCONN(channel)) {
crm_msg_del(op_request);
if(channel->ops->is_message_pending(channel) == 0) {
break;
}
op_request = msgfromIPC_noauth(channel);
if(op_request == NULL) {
break;
}
type = cl_get_string(op_request, F_CIB_OPERATION);
if(safe_str_eq(type, T_CIB_NOTIFY) ) {
/* Update the notify filters for this client */
int on_off = 0;
ha_msg_value_int(
op_request, F_CIB_NOTIFY_ACTIVATE, &on_off);
type = cl_get_string(op_request, F_CIB_NOTIFY_TYPE);
crm_info("Setting %s callbacks for %s: %s",
type, cib_client->name, 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;
}
continue;
} else if(safe_str_neq(type, CRM_OP_REGISTER) ) {
crm_warn("Discarding IPC message from %s on callback channel",
cib_client->id);
continue;
}
uuid_ticket = cl_get_string(op_request, F_CIB_CALLBACK_TOKEN);
client_name = cl_get_string(op_request, F_CIB_CLIENTNAME);
CRM_DEV_ASSERT(uuid_ticket != NULL);
if(crm_assert_failed) {
register_failed = crm_assert_failed;
}
CRM_DEV_ASSERT(client_name != NULL);
if(crm_assert_failed) {
register_failed = crm_assert_failed;
}
if(register_failed == FALSE) {
hash_client = g_hash_table_lookup(client_list, uuid_ticket);
if(hash_client != NULL) {
crm_err("Duplicate registration request..."
" disconnecting");
register_failed = TRUE;
}
}
if(register_failed) {
crm_err("Registration request failed... disconnecting");
crm_msg_del(op_request);
return FALSE;
}
START_stat_free_op();
CRM_CHECK(cib_client->id == NULL, crm_free(cib_client->id));
CRM_CHECK(cib_client->name == NULL, crm_free(cib_client->name));
cib_client->id = crm_strdup(uuid_ticket);
cib_client->name = crm_strdup(client_name);
g_hash_table_insert(client_list, cib_client->id, cib_client);
END_stat_free_op();
crm_debug_2("Registered %s on %s channel",
cib_client->id, cib_client->channel_name);
if(safe_str_eq(cib_client->name, CRM_SYSTEM_TENGINE)) {
/* The TE is _always_ interested in these
* Enable now to avoid timing issues
*/
cib_client->diffs = TRUE;
}
registered = ha_msg_new(2);
ha_msg_add(registered, F_CIB_OPERATION, CRM_OP_REGISTER);
ha_msg_add(registered, F_CIB_CLIENTID, cib_client->id);
send_ipc_message(channel, registered);
crm_msg_del(registered);
if(channel->ch_status == IPC_CONNECT) {
break;
}
}
crm_msg_del(op_request);
if(channel->ch_status != IPC_CONNECT) {
crm_debug_2("Client disconnected");
keep_connection = cib_process_disconnect(channel, cib_client);
}
crm_diff_mem_stats(LOG_ERR, LOG_WARNING, __PRETTY_FUNCTION__, NULL, &saved_stats);
return keep_connection;
}
void
cib_common_callback_worker(HA_Message *op_request, cib_client_t *cib_client,
gboolean force_synchronous, gboolean privileged);
void
cib_common_callback_worker(HA_Message *op_request, cib_client_t *cib_client,
gboolean force_synchronous, gboolean privileged)
{
int rc = cib_ok;
int call_type = 0;
const char *op = NULL;
longclock_t call_stop = 0;
longclock_t call_start = 0;
cl_mem_stats_t saved_stats;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
call_start = time_longclock();
cib_client->num_calls++;
op = cl_get_string(op_request, F_CIB_OPERATION);
rc = cib_get_operation_id(op_request, &call_type);
if(rc != cib_ok) {
crm_debug("Invalid operation %s from %s/%s",
op, cib_client->name, cib_client->channel_name);
} else {
crm_debug_2("Processing %s operation from %s/%s",
op, cib_client->name, cib_client->channel_name);
}
if(rc == cib_ok) {
cib_process_request(
op_request, force_synchronous, privileged, FALSE,
cib_client);
}
call_stop = time_longclock();
cib_call_time += (call_stop - call_start);
crm_diff_mem_stats(LOG_ERR, LOG_WARNING, __PRETTY_FUNCTION__, NULL, &saved_stats);
}
gboolean
cib_common_callback(IPC_Channel *channel, cib_client_t *cib_client,
gboolean force_synchronous, gboolean privileged)
{
int lpc = 0;
HA_Message *op_request = NULL;
gboolean keep_channel = TRUE;
cl_mem_stats_t saved_stats;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
if(cib_client == NULL) {
crm_err("Receieved call from unknown source. Discarding.");
return FALSE;
}
START_stat_free_op();
if(cib_client->name == NULL) {
cib_client->name = crm_itoa(channel->farside_pid);
}
if(cib_client->id == NULL) {
cib_client->id = crm_strdup(cib_client->name);
g_hash_table_insert(client_list, cib_client->id, cib_client);
}
END_stat_free_op();
crm_debug_2("Callback for %s on %s channel",
cib_client->id, cib_client->channel_name);
while(IPC_ISRCONN(channel)) {
if(channel->ops->is_message_pending(channel) == 0) {
break;
}
op_request = msgfromIPC_noauth(channel);
if (op_request == NULL) {
perror("Receive failure:");
break;
}
lpc++;
crm_assert_failed = FALSE;
crm_log_message_adv(LOG_MSG, "Client[inbound]", op_request);
ha_msg_add(op_request, F_CIB_CLIENTID, cib_client->id);
ha_msg_add(op_request, F_CIB_CLIENTNAME, cib_client->name);
cib_common_callback_worker(
op_request, cib_client, force_synchronous, privileged);
crm_msg_del(op_request);
if(channel->ch_status == IPC_CONNECT) {
break;
}
}
crm_debug_2("Processed %d messages", lpc);
if(channel->ch_status != IPC_CONNECT) {
crm_debug_2("Client disconnected");
keep_channel = cib_process_disconnect(channel, cib_client);
}
crm_diff_mem_stats(LOG_WARNING, LOG_WARNING, __PRETTY_FUNCTION__, NULL, &saved_stats);
return keep_channel;
}
static void
do_local_notify(HA_Message *notify_src, const char *client_id, gboolean sync_reply, gboolean from_peer)
{
/* send callback to originating child */
cib_client_t *client_obj = NULL;
HA_Message *client_reply = NULL;
enum cib_errors local_rc = cib_ok;
cl_mem_stats_t saved_stats;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
crm_debug_2("Performing notification");
client_reply = cib_msg_copy(notify_src, TRUE);
if(client_id != NULL) {
client_obj = g_hash_table_lookup(
client_list, client_id);
} else {
- crm_debug("No client to sent the response to."
- " F_CIB_CLIENTID not set.");
+ crm_debug_2("No client to sent the response to."
+ " F_CIB_CLIENTID not set.");
}
crm_debug_3("Sending callback to request originator");
if(client_obj == NULL) {
local_rc = cib_reply_failed;
} else {
const char *client_id = client_obj->callback_id;
crm_debug_2("Sending %ssync response to %s %s",
sync_reply?"":"an a-",
client_obj->name,
from_peer?"(originator of delegated request)":"");
if(sync_reply) {
client_id = client_obj->id;
}
local_rc = send_via_callback_channel(client_reply, client_id);
}
- if(local_rc != cib_ok) {
+ if(local_rc != cib_ok && client_obj != NULL) {
crm_warn("%sSync reply to %s failed: %s",
sync_reply?"":"A-",
client_obj?client_obj->name:"<unknown>", cib_error2string(local_rc));
}
ha_msg_del(client_reply);
crm_diff_mem_stats(LOG_ERR, LOG_ERR, __PRETTY_FUNCTION__, NULL, &saved_stats);
}
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_server_ops[call_type].modifies_cib
&& !(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_debug("Processing locally scoped %s op from %s",
op, cib_client->name);
*local_notify = TRUE;
} else if(host == NULL && cib_is_master) {
crm_debug("Processing master %s op locally from %s",
op, cib_client->name);
*local_notify = TRUE;
} else if(safe_str_eq(host, cib_our_uname)) {
crm_debug("Processing locally addressed %s op from %s",
op, cib_client->name);
*local_notify = TRUE;
} else {
crm_debug("%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, HA_Message *request,
gboolean *local_notify, gboolean *needs_reply, gboolean *process, gboolean *needs_forward)
{
const char *op = cl_get_string(request, F_CIB_OPERATION);
const char *originator = cl_get_string(request, F_ORIG);
const char *host = cl_get_string(request, F_CIB_HOST);
const char *reply_to = cl_get_string(request, F_CIB_ISREPLY);
const char *update = cl_get_string(request, F_CIB_GLOBAL_UPDATE);
const char *delegated = cl_get_string(request, F_CIB_DELEGATED);
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 if(crm_is_true(update) && safe_str_eq(reply_to, cib_our_uname)) {
crm_debug("Processing global/peer update from %s"
" that originated from us", originator);
*needs_reply = FALSE;
if(cl_get_string(request, F_CIB_CLIENTID) != NULL) {
*local_notify = TRUE;
}
return TRUE;
} else if(crm_is_true(update)) {
crm_debug("Processing global/peer update from %s", originator);
*needs_reply = FALSE;
return TRUE;
} else if(host != NULL && safe_str_eq(host, cib_our_uname)) {
crm_debug("Processing request sent to us from %s", originator);
return TRUE;
} else if(delegated != NULL && cib_is_master == TRUE) {
crm_debug("Processing request sent to master instance from %s",
originator);
return TRUE;
} else if(reply_to != NULL && safe_str_eq(reply_to, cib_our_uname)) {
crm_debug("Forward reply sent from %s to local clients",
originator);
*process = FALSE;
*needs_reply = FALSE;
*local_notify = TRUE;
return TRUE;
} else if(delegated != NULL) {
crm_debug("Ignoring msg for master instance");
} else if(host != NULL) {
/* this is for a specific instance and we're not it */
crm_debug("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_debug("Ignoring reply to %s", crm_str(reply_to));
} else {
crm_err("Nothing for us to do?");
crm_log_message_adv(LOG_ERR, "Peer[inbound]", request);
}
return FALSE;
}
static void
forward_request(HA_Message *request, cib_client_t *cib_client, int call_options)
{
HA_Message *forward_msg = NULL;
cl_mem_stats_t saved_stats;
const char *op = cl_get_string(request, F_CIB_OPERATION);
const char *host = cl_get_string(request, F_CIB_HOST);
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
forward_msg = cib_msg_copy(request, TRUE);
ha_msg_add(forward_msg, F_CIB_DELEGATED, cib_our_uname);
if(host != NULL) {
crm_debug_2("Forwarding %s op to %s", op, host);
send_ha_message(hb_conn, forward_msg, host, FALSE);
} else {
crm_debug_2("Forwarding %s op to master instance", op);
send_ha_message(hb_conn, forward_msg, NULL, FALSE);
}
if(call_options & cib_discard_reply) {
crm_debug_2("Client not interested in reply");
} else if(call_options & cib_sync_call) {
/* keep track of the request so we can time it
* out if required
*/
crm_debug_2("Registering delegated call from %s",
cib_client->id);
cib_client->delegated_calls = g_list_append(
cib_client->delegated_calls, forward_msg);
forward_msg = NULL;
}
crm_msg_del(forward_msg);
crm_diff_mem_stats(LOG_ERR, LOG_ERR, __PRETTY_FUNCTION__, NULL, &saved_stats);
}
static void
send_peer_reply(
HA_Message *msg, crm_data_t *result_diff, const char *originator, gboolean broadcast)
{
cl_mem_stats_t saved_stats;
HA_Message *reply_copy = NULL;
CRM_ASSERT(msg != NULL);
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
reply_copy = cib_msg_copy(msg, TRUE);
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;
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_debug("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);
ha_msg_add(reply_copy, F_CIB_ISREPLY, originator);
ha_msg_add(reply_copy, F_CIB_GLOBAL_UPDATE, XML_BOOLEAN_TRUE);
ha_msg_mod(reply_copy, F_CIB_OPERATION, CIB_OP_APPLY_DIFF);
add_message_xml(reply_copy, F_CIB_UPDATE_DIFF, result_diff);
crm_log_message(LOG_DEBUG_3, reply_copy);
send_ha_message(hb_conn, reply_copy, NULL, TRUE);
} else if(originator != NULL) {
/* send reply via HA to originating node */
crm_debug_2("Sending request result to originator only");
ha_msg_add(reply_copy, F_CIB_ISREPLY, originator);
send_ha_message(hb_conn, reply_copy, originator, FALSE);
}
crm_msg_del(reply_copy);
crm_diff_mem_stats(LOG_ERR, LOG_WARNING, __PRETTY_FUNCTION__, NULL, &saved_stats);
}
void
cib_process_request(
HA_Message *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 needs_reply = TRUE;
gboolean local_notify = FALSE;
gboolean needs_forward = FALSE;
crm_data_t *result_diff = NULL;
enum cib_errors rc = cib_ok;
HA_Message *op_reply = NULL;
const char *op = cl_get_string(request, F_CIB_OPERATION);
const char *originator = cl_get_string(request, F_ORIG);
const char *host = cl_get_string(request, F_CIB_HOST);
const char *update = cl_get_string(request, F_CIB_GLOBAL_UPDATE);
cl_mem_stats_t saved_stats;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
crm_debug_4("%s Processing msg %s",
cib_our_uname, cl_get_string(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;
}
ha_msg_value_int(request, F_CIB_CALLOPTS, &call_options);
crm_debug_4("Retrieved call options: %d", call_options);
if(force_synchronous) {
call_options |= cib_sync_call;
}
crm_debug_2("Processing %s message (%s) to %s...",
from_peer?"peer":"local",
from_peer?originator:cib_our_uname, host?host:"master");
rc = cib_get_operation_id(request, &call_type);
if(cib_server_ops[call_type].modifies_cib) {
cib_num_updates++;
}
if(rc != cib_ok) {
/* TODO: construct error reply */
crm_err("Pre-processing of command failed: %s",
cib_error2string(rc));
} else 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_debug_3("Finished determining processing actions");
if(call_options & cib_discard_reply) {
needs_reply = cib_server_ops[call_type].modifies_cib;
local_notify = FALSE;
}
if(needs_forward && stand_alone == FALSE) {
forward_request(request, cib_client, call_options);
return;
}
if(process) {
cib_num_local++;
crm_debug_2("Performing local processing:"
" op=%s origin=%s/%s,%s (update=%s)",
cl_get_string(request, F_CIB_OPERATION), originator,
cl_get_string(request, F_CIB_CLIENTID),
cl_get_string(request, F_CIB_CALLID), update);
rc = cib_process_command(
request, &op_reply, &result_diff, privileged);
crm_debug_2("Processing complete");
if(rc == cib_diff_resync || rc == cib_diff_failed
|| rc == cib_old_data) {
crm_warn("%s operation failed: %s",
crm_str(op), cib_error2string(rc));
} else if(rc != cib_ok) {
cib_num_fail++;
crm_err("%s operation failed: %s",
crm_str(op), cib_error2string(rc));
crm_log_message_adv(LOG_DEBUG, "CIB[output]", op_reply);
crm_log_message_adv(LOG_INFO, "Input message", request);
}
if(op_reply == NULL && (needs_reply || local_notify)) {
crm_err("Unexpected NULL reply to message");
crm_log_message(LOG_ERR, request);
needs_reply = FALSE;
local_notify = FALSE;
}
}
crm_debug_3("processing response cases");
if(local_notify) {
const char *client_id = cl_get_string(request, F_CIB_CLIENTID);
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);
}
}
/* 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_debug_2("Completed slave update");
} else if(rc == cib_ok
&& result_diff != NULL
&& !(call_options & cib_inhibit_bcast)) {
CRM_DEV_ASSERT(cib_server_ops[call_type].modifies_cib == FALSE
|| result_diff != NULL || rc != cib_ok);
send_peer_reply(request, result_diff, originator, TRUE);
} else if((call_options & cib_discard_reply) == 0) {
CRM_DEV_ASSERT(cib_server_ops[call_type].modifies_cib == FALSE
|| result_diff != NULL || rc != cib_ok);
crm_debug("Directed reply to %s", originator);
if(call_options & cib_inhibit_bcast) {
crm_debug("Request not broadcast: inhibited");
}
if(cib_server_ops[call_type].modifies_cib == FALSE) {
crm_debug_2("Request not broadcast: R/O call");
}
if(rc != cib_ok) {
crm_warn("Request not broadcast: call failed: %s",
cib_error2string(rc));
}
if(from_peer) {
send_peer_reply(op_reply, result_diff, originator, FALSE);
}
}
crm_msg_del(op_reply);
free_xml(result_diff);
if(crm_diff_mem_stats(LOG_ERR, LOG_WARNING, __PRETTY_FUNCTION__, NULL, &saved_stats)) {
#if HA_MALLOC_TRACK
cl_malloc_dump_allocated(LOG_DEBUG, FALSE);
#endif
}
return;
}
static HA_Message *
cib_construct_reply(HA_Message *request, HA_Message *output, int rc)
{
int lpc = 0;
HA_Message *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
};
crm_debug_4("Creating a basic reply");
reply = ha_msg_new(8);
ha_msg_add(reply, F_TYPE, T_CIB);
for(lpc = 0; lpc < DIMOF(names); lpc++) {
name = names[lpc];
value = cl_get_string(request, name);
ha_msg_add(reply, name, value);
}
ha_msg_add_int(reply, F_CIB_RC, rc);
if(output != NULL) {
crm_debug_4("Attaching reply output");
add_message_xml(reply, F_CIB_CALLDATA, output);
}
return reply;
}
enum cib_errors
cib_process_command(HA_Message *request, HA_Message **reply,
crm_data_t **cib_diff, gboolean privileged)
{
crm_data_t *output = NULL;
crm_data_t *input = NULL;
crm_data_t *current_cib = NULL;
crm_data_t *result_cib = NULL;
int call_type = 0;
int call_options = 0;
enum cib_errors rc = cib_ok;
enum cib_errors rc2 = cib_ok;
const char *op = NULL;
const char *section = NULL;
gboolean global_update = crm_is_true(
cl_get_string(request, F_CIB_GLOBAL_UPDATE));
*reply = NULL;
*cib_diff = NULL;
if(per_action_cib) {
CRM_CHECK(the_cib == NULL, free_xml(the_cib));
the_cib = readCibXmlFile(CIB_FILENAME, FALSE);
CRM_CHECK(the_cib != NULL, return cib_NOOBJECT);
}
current_cib = the_cib;
/* Start processing the request... */
op = cl_get_string(request, F_CIB_OPERATION);
ha_msg_value_int(request, F_CIB_CALLOPTS, &call_options);
rc = cib_get_operation_id(request, &call_type);
if(rc == cib_ok &&
cib_server_ops[call_type].needs_privileges
&& privileged == FALSE) {
/* abort */
rc = cib_not_authorized;
}
if(cib_status != cib_ok) {
*reply = cib_construct_reply(request, the_cib, cib_status);
if(per_action_cib) {
uninitializeCib();
}
return cib_status;
}
if(rc == cib_ok
&& global_update == FALSE
&& cib_server_ops[call_type].needs_quorum
&& can_write(call_options) == FALSE) {
rc = cib_no_quorum;
}
/* prevent NUMUPDATES from being incrimented - apply the change as-is */
if(global_update) {
call_options |= cib_inhibit_bcast;
call_options |= cib_force_diff;
}
rc2 = cib_server_ops[call_type].prepare(request, &input, §ion);
if(rc == cib_ok) {
rc = rc2;
}
if(rc != cib_ok) {
crm_debug_2("Call setup failed");
} else if(cib_server_ops[call_type].modifies_cib) {
if((call_options & cib_inhibit_notify) == 0) {
cib_pre_notify(
call_options, op,
get_object_root(section, current_cib), input);
}
if(rc == cib_ok) {
result_cib = copy_xml(current_cib);
rc = cib_server_ops[call_type].fn(
op, call_options, section, input,
current_cib, &result_cib, &output);
}
if(rc == cib_ok) {
CRM_DEV_ASSERT(result_cib != NULL);
CRM_DEV_ASSERT(current_cib != result_cib);
update_counters(__FILE__, __FUNCTION__, result_cib);
- if(section == NULL && cib_server_ops[call_type].fn == cib_process_replace) {
+ if(global_update) {
/* skip */
+ CRM_CHECK(call_type == 4 || call_type == 11,
+ crm_err("Call type: %d", call_type);
+ crm_log_message(LOG_ERR, request));
+ crm_debug_2("Skipping update: global replace");
+
} else if(cib_server_ops[call_type].fn == cib_process_change
&& (call_options & cib_inhibit_bcast)) {
/* skip */
+ crm_debug_2("Skipping update: inhibit broadcast");
+
} else {
+ const char *op = cl_get_string(
+ request, F_CIB_OPERATION);
+ const char *originator = cl_get_string(
+ request, F_ORIG);
+
+ crm_debug_2("Upping counter: %s %s %d %d",
+ op, originator, call_options,
+ global_update);
cib_update_counter(result_cib, XML_ATTR_NUMUPDATES, FALSE);
}
if(do_id_check(result_cib, NULL, TRUE, FALSE)) {
rc = cib_id_check;
if(call_options & cib_force_diff) {
crm_err("Global update introduces id collision!");
}
} else {
*cib_diff = diff_cib_object(
current_cib, result_cib, FALSE);
}
}
if(rc != cib_ok) {
free_xml(result_cib);
} else if(activateCibXml(result_cib, CIB_FILENAME) != 0){
crm_warn("Activation failed");
rc = cib_ACTIVATION;
}
if((call_options & cib_inhibit_notify) == 0) {
const char *call_id = cl_get_string(
request, F_CIB_CALLID);
const char *client = cl_get_string(
request, F_CIB_CLIENTNAME);
cib_post_notify(call_options, op, input, rc, the_cib);
cib_diff_notify(call_options, client, call_id, op,
input, rc, *cib_diff);
}
log_xml_diff(rc==cib_ok?cib_diff_loglevel:cib_diff_loglevel+1,
*cib_diff, "cib:diff");
} else {
rc = cib_server_ops[call_type].fn(
op, call_options, section, input,
current_cib, &result_cib, &output);
CRM_CHECK(result_cib == NULL, free_xml(result_cib));
}
if((call_options & cib_discard_reply) == 0) {
*reply = cib_construct_reply(request, output, rc);
}
if(call_type >= 0) {
cib_server_ops[call_type].cleanup(op, &input, &output);
}
if(per_action_cib) {
uninitializeCib();
}
return rc;
}
int
send_via_callback_channel(HA_Message *msg, const char *token)
{
cib_client_t *hash_client = NULL;
GList *list_item = NULL;
enum cib_errors rc = cib_ok;
cl_mem_stats_t saved_stats;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
crm_debug_3("Delivering msg %p to client %s", msg, token);
if(token == NULL) {
crm_err("No client id token, cant send message");
if(rc == cib_ok) {
rc = cib_missing;
}
} else {
/* A client that left before we could reply is not really
* _our_ error. Warn instead.
*/
hash_client = g_hash_table_lookup(client_list, token);
if(hash_client == NULL) {
crm_warn("Cannot find client for token %s", token);
rc = cib_client_gone;
} else if(hash_client->channel == NULL) {
crm_err("Cannot find channel for client %s", token);
rc = cib_client_corrupt;
} else if(hash_client->channel->ops->get_chan_status(
hash_client->channel) == IPC_DISCONNECT) {
crm_warn("Client %s has disconnected", token);
rc = cib_client_gone;
cib_num_timeouts++;
}
}
/* this is a more important error so overwriting rc is warrented */
if(msg == NULL) {
crm_err("No message to send");
rc = cib_reply_failed;
}
if(rc == cib_ok) {
list_item = g_list_find_custom(
hash_client->delegated_calls, msg, cib_GCompareFunc);
}
if(list_item != NULL) {
/* remove it - no need to time it out */
HA_Message *orig_msg = list_item->data;
crm_debug_3("Removing msg from delegated list");
hash_client->delegated_calls = g_list_remove(
hash_client->delegated_calls, orig_msg);
CRM_DEV_ASSERT(orig_msg != msg);
crm_msg_del(orig_msg);
}
if(rc == cib_ok) {
crm_debug_3("Delivering reply to client %s", token);
if(send_ipc_message(hash_client->channel, msg) == FALSE) {
crm_warn("Delivery of reply to client %s/%s failed",
hash_client->name, token);
rc = cib_reply_failed;
}
}
crm_diff_mem_stats(LOG_ERR, LOG_ERR, __PRETTY_FUNCTION__, NULL, &saved_stats);
return rc;
}
gint cib_GCompareFunc(gconstpointer a, gconstpointer b)
{
const HA_Message *a_msg = a;
const HA_Message *b_msg = b;
int msg_a_id = 0;
int msg_b_id = 0;
ha_msg_value_int(a_msg, F_CIB_CALLID, &msg_a_id);
ha_msg_value_int(b_msg, F_CIB_CALLID, &msg_b_id);
if(msg_a_id == msg_b_id) {
return 0;
} else if(msg_a_id < msg_b_id) {
return -1;
}
return 1;
}
gboolean
cib_msg_timeout(gpointer data)
{
crm_debug_4("Checking if any clients have timed out messages");
/* g_hash_table_foreach(client_list, cib_GHFunc, NULL); */
return TRUE;
}
void
cib_GHFunc(gpointer key, gpointer value, gpointer user_data)
{
int timeout = 0; /* 1 iteration == 10 seconds */
HA_Message *msg = NULL;
HA_Message *reply = NULL;
const char *host_to = NULL;
cib_client_t *client = value;
GListPtr list = client->delegated_calls;
while(list != NULL) {
msg = list->data;
ha_msg_value_int(msg, F_CIB_TIMEOUT, &timeout);
if(timeout <= 0) {
list = list->next;
continue;
} else {
int seen = 0;
ha_msg_value_int(msg, F_CIB_SEENCOUNT, &seen);
crm_debug_4("Timeout %d, seen %d", timeout, seen);
if(seen < timeout) {
crm_debug_4("Updating seen count for msg from client %s",
client->id);
seen += 10;
ha_msg_mod_int(msg, F_CIB_SEENCOUNT, seen);
list = list->next;
continue;
}
}
cib_num_timeouts++;
host_to = cl_get_string(msg, F_CIB_HOST);
crm_warn("Sending operation timeout msg to client %s",
client->id);
reply = ha_msg_new(4);
ha_msg_add(reply, F_TYPE, T_CIB);
ha_msg_add(reply, F_CIB_OPERATION,
cl_get_string(msg, F_CIB_OPERATION));
ha_msg_add(reply, F_CIB_CALLID,
cl_get_string(msg, F_CIB_CALLID));
if(host_to == NULL) {
ha_msg_add_int(reply, F_CIB_RC, cib_master_timeout);
} else {
ha_msg_add_int(reply, F_CIB_RC, cib_remote_timeout);
}
send_ipc_message(client->channel, reply);
list = list->next;
client->delegated_calls = g_list_remove(
client->delegated_calls, msg);
crm_msg_del(msg);
crm_msg_del(reply);
}
}
gboolean
cib_process_disconnect(IPC_Channel *channel, cib_client_t *cib_client)
{
cl_mem_stats_t saved_stats;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
if (channel == NULL) {
CRM_DEV_ASSERT(cib_client == NULL);
} else if (cib_client == NULL) {
crm_err("No client");
} else {
CRM_DEV_ASSERT(channel->ch_status != IPC_CONNECT);
crm_debug_2("Cleaning up after client disconnect: %s/%s/%s",
crm_str(cib_client->name),
cib_client->channel_name,
cib_client->id);
if(cib_client->id != NULL) {
START_stat_free_op();
if(!g_hash_table_remove(client_list, cib_client->id)) {
crm_err("Client %s not found in the hashtable",
cib_client->name);
}
END_stat_free_op();
}
}
if(cib_shutdown_flag && g_hash_table_size(client_list) == 0) {
crm_info("All clients disconnected...");
initiate_exit();
}
crm_diff_mem_stats(LOG_ERR, LOG_ERR, __PRETTY_FUNCTION__, NULL, &saved_stats);
return FALSE;
}
gboolean
cib_ha_dispatch(IPC_Channel *channel, gpointer user_data)
{
ll_cluster_t *hb_cluster = (ll_cluster_t*)user_data;
cl_mem_stats_t saved_stats;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
crm_debug_3("Invoked");
if(IPC_ISRCONN(channel)) {
if(hb_cluster->llc_ops->msgready(hb_cluster) == 0) {
crm_debug_2("no message ready yet");
}
/* invoke the callbacks but dont block */
hb_cluster->llc_ops->rcvmsg(hb_cluster, 0);
}
crm_diff_mem_stats(LOG_DEBUG, LOG_DEBUG, __PRETTY_FUNCTION__, NULL, &saved_stats);
return (channel->ch_status == IPC_CONNECT);
}
void
cib_peer_callback(HA_Message * msg, void* private_data)
{
int call_type = 0;
int call_options = 0;
const char *originator = cl_get_string(msg, F_ORIG);
const char *seq = cl_get_string(msg, F_SEQ);
const char *op = cl_get_string(msg, F_CIB_OPERATION);
cl_mem_stats_t saved_stats;
crm_save_mem_stats(__PRETTY_FUNCTION__, &saved_stats);
crm_log_message_adv(LOG_MSG, "Peer[inbound]", msg);
crm_debug_2("Peer %s message (%s) from %s", op, seq, originator);
if(originator == NULL || safe_str_eq(originator, cib_our_uname)) {
crm_debug("Discarding %s message %s from ourselves", op, seq);
return;
} else if(ccm_membership == NULL) {
crm_info("Discarding %s message (%s) from %s:"
" membership not established", op, seq, originator);
return;
} else if(g_hash_table_lookup(ccm_membership, originator) == NULL) {
crm_warn("Discarding %s message (%s) from %s:"
" not in our membership", op, seq, originator);
return;
} else if(cib_get_operation_id(msg, &call_type) != cib_ok) {
crm_debug("Discarding %s message (%s) from %s:"
" Invalid operation", op, seq, originator);
return;
}
crm_debug_2("Processing %s msg (%s) from %s",op, seq, originator);
ha_msg_value_int(msg, F_CIB_CALLOPTS, &call_options);
crm_debug_4("Retrieved call options: %d", call_options);
if(cl_get_string(msg, F_CIB_CLIENTNAME) == NULL) {
ha_msg_add(msg, F_CIB_CLIENTNAME, originator);
}
cib_process_request(msg, FALSE, TRUE, TRUE, NULL);
crm_diff_mem_stats(LOG_ERR, LOG_ERR, __PRETTY_FUNCTION__, NULL, &saved_stats);
return;
}
HA_Message *
cib_msg_copy(HA_Message *msg, gboolean with_data)
{
int lpc = 0;
const char *field = NULL;
const char *value = NULL;
const HA_Message *value_struct = NULL;
static const char *field_list[] = {
F_TYPE ,
F_CIB_CLIENTID ,
F_CIB_CALLOPTS ,
F_CIB_CALLID ,
F_CIB_OPERATION ,
F_CIB_ISREPLY ,
F_CIB_SECTION ,
F_CIB_HOST ,
F_CIB_RC ,
F_CIB_DELEGATED ,
F_CIB_OBJID ,
F_CIB_OBJTYPE ,
F_CIB_EXISTING ,
F_CIB_SEENCOUNT ,
F_CIB_TIMEOUT ,
F_CIB_CALLBACK_TOKEN ,
F_CIB_GLOBAL_UPDATE ,
F_CIB_CLIENTNAME ,
F_CIB_NOTIFY_TYPE ,
F_CIB_NOTIFY_ACTIVATE
};
static const char *data_list[] = {
F_CIB_CALLDATA ,
F_CIB_UPDATE ,
F_CIB_UPDATE_RESULT
};
HA_Message *copy = NULL;
copy = ha_msg_new(10);
if(copy == NULL) {
return copy;
}
for(lpc = 0; lpc < DIMOF(field_list); lpc++) {
field = field_list[lpc];
value = cl_get_string(msg, field);
if(value != NULL) {
ha_msg_add(copy, field, value);
}
}
for(lpc = 0; with_data && lpc < DIMOF(data_list); lpc++) {
field = data_list[lpc];
value_struct = cl_get_struct(msg, field);
if(value_struct != NULL) {
add_message_xml(copy, field, value_struct);
}
}
return copy;
}
enum cib_errors
cib_get_operation_id(const HA_Message * msg, int *operation)
{
int lpc = 0;
int max_msg_types = DIMOF(cib_server_ops);
const char *op = cl_get_string(msg, F_CIB_OPERATION);
for (lpc = 0; lpc < max_msg_types; lpc++) {
if (safe_str_eq(op, cib_server_ops[lpc].operation)) {
*operation = lpc;
return cib_ok;
}
}
crm_err("Operation %s is not valid", op);
*operation = -1;
return cib_operation;
}
void
cib_client_status_callback(const char * node, const char * client,
const char * status, void * private)
{
if(safe_str_eq(client, CRM_SYSTEM_CIB)) {
crm_info("Status update: Client %s/%s now has status [%s]",
node, client, status);
g_hash_table_replace(peer_hash, crm_strdup(node), crm_strdup(status));
set_connected_peers(the_cib);
}
return;
}
extern oc_ev_t *cib_ev_token;
gboolean
ccm_manual_check(gpointer data)
{
int rc = 0;
oc_ev_t *ccm_token = cib_ev_token;
crm_debug("manual check");
rc = oc_ev_handle_event(ccm_token);
if(0 == rc) {
return TRUE;
} else {
crm_err("CCM connection appears to have failed: rc=%d.", rc);
return FALSE;
}
}
gboolean cib_ccm_dispatch(int fd, gpointer user_data)
{
int rc = 0;
oc_ev_t *ccm_token = (oc_ev_t*)user_data;
crm_debug_2("received callback");
rc = oc_ev_handle_event(ccm_token);
if(0 == rc) {
return TRUE;
} else {
crm_err("CCM connection appears to have failed: rc=%d.", rc);
return FALSE;
}
}
static void crm_ghash_clfree(gpointer data)
{
crm_free(data);
}
void
cib_ccm_msg_callback(
oc_ed_t event, void *cookie, size_t size, const void *data)
{
int instance = -1;
gboolean update_id = FALSE;
gboolean update_quorum = FALSE;
const oc_ev_membership_t *membership = data;
if(membership != NULL) {
instance = membership->m_instance;
}
crm_debug("Process CCM event=%s (id=%d)",
ccm_event_name(event), instance);
switch(event) {
case OC_EV_MS_NEW_MEMBERSHIP:
case OC_EV_MS_INVALID:
update_id = TRUE;
update_quorum = TRUE;
break;
case OC_EV_MS_PRIMARY_RESTORED:
update_id = TRUE;
break;
case OC_EV_MS_NOT_PRIMARY:
crm_debug_2("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));
update_quorum = TRUE;
break;
default:
crm_err("Unknown CCM event: %d", event);
}
if(update_id) {
CRM_DEV_ASSERT(membership != NULL);
if(crm_assert_failed) { return; }
if(ccm_transition_id != NULL) {
crm_free(ccm_transition_id);
ccm_transition_id = NULL;
}
ccm_transition_id = crm_itoa(instance);
set_transition(the_cib);
}
if(update_quorum) {
unsigned int members = 0;
int offset = 0;
unsigned int lpc = 0;
cib_have_quorum = ccm_have_quorum(event);
if(cib_have_quorum) {
crm_xml_add(
the_cib,XML_ATTR_HAVE_QUORUM,XML_BOOLEAN_TRUE);
} else {
crm_xml_add(
the_cib,XML_ATTR_HAVE_QUORUM,XML_BOOLEAN_FALSE);
}
crm_debug("Quorum %s after event=%s (id=%d)",
cib_have_quorum?"(re)attained":"lost",
ccm_event_name(event), instance);
if(ccm_membership == NULL) {
ccm_membership = g_hash_table_new_full(
g_str_hash, g_str_equal,
crm_ghash_clfree, NULL);
}
if(membership != NULL && membership->m_n_out != 0) {
members = membership->m_n_out;
offset = membership->m_out_idx;
for(lpc = 0; lpc < members; lpc++) {
oc_node_t a_node = membership->m_array[lpc+offset];
crm_info("LOST: %s", a_node.node_uname);
g_hash_table_remove(
ccm_membership, a_node.node_uname);
}
}
if(membership != NULL && membership->m_n_member != 0) {
members = membership->m_n_member;
offset = membership->m_memb_idx;
for(lpc = 0; lpc < members; lpc++) {
oc_node_t a_node = membership->m_array[lpc+offset];
char *uname = crm_strdup(a_node.node_uname);
crm_info("PEER: %s", uname);
g_hash_table_replace(
ccm_membership, uname, uname);
}
}
}
oc_ev_callback_done(cookie);
set_connected_peers(the_cib);
return;
}
gboolean
can_write(int flags)
{
if(cib_have_quorum) {
return TRUE;
} else if((flags & cib_quorum_override) != 0) {
return TRUE;
}
return FALSE;
}
static gboolean
cib_force_exit(gpointer data)
{
crm_notice("Forcing exit!");
terminate_ha_connection(__FUNCTION__);
return FALSE;
}
void
initiate_exit(void)
{
int active = 0;
HA_Message *leaving = NULL;
g_hash_table_foreach(peer_hash, GHFunc_count_peers, &active);
if(active < 2) {
terminate_ha_connection(__FUNCTION__);
return;
}
crm_info("Sending disconnect notification to %d peers...", active);
leaving = ha_msg_new(3);
ha_msg_add(leaving, F_TYPE, "cib");
ha_msg_add(leaving, F_CIB_OPERATION, "cib_shutdown_req");
send_ha_message(hb_conn, leaving, NULL, TRUE);
crm_msg_del(leaving);
Gmain_timeout_add(crm_get_msec("5s"), cib_force_exit, NULL);
}
void
terminate_ha_connection(const char *caller)
{
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);
exit(LSB_EXIT_OK);
}
}