diff --git a/daemons/controld/controld_corosync.c b/daemons/controld/controld_corosync.c
index d104127370..db99630fbc 100644
--- a/daemons/controld/controld_corosync.c
+++ b/daemons/controld/controld_corosync.c
@@ -1,109 +1,110 @@
/*
* Copyright 2004-2019 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU General Public License version 2
* or later (GPLv2+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <crm/crm.h>
#include <crm/cluster/internal.h>
#include <crm/common/xml.h>
#include <pacemaker-controld.h>
#if SUPPORT_COROSYNC
extern void post_cache_update(int seq);
/* A_HA_CONNECT */
static void
crmd_cs_dispatch(cpg_handle_t handle, const struct cpg_name *groupName,
uint32_t nodeid, uint32_t pid, void *msg, size_t msg_len)
{
uint32_t kind = 0;
const char *from = NULL;
char *data = pcmk_message_common_cs(handle, nodeid, pid, msg, &kind, &from);
if(data == NULL) {
return;
}
if (kind == crm_class_cluster) {
crm_node_t *peer = NULL;
xmlNode *xml = string2xml(data);
if (xml == NULL) {
crm_err("Could not parse message content (%d): %.100s", kind, data);
free(data);
return;
}
crm_xml_add(xml, F_ORIG, from);
/* crm_xml_add_int(xml, F_SEQ, wrapper->id); Fake? */
peer = crm_get_peer(0, from);
if (!pcmk_is_set(peer->processes, crm_proc_cpg)) {
/* If we can still talk to our peer process on that node,
* then it must be part of the corosync membership
*/
crm_warn("Receiving messages from a node we think is dead: %s[%d]",
peer->uname, peer->id);
crm_update_peer_proc(__func__, peer, crm_proc_cpg,
ONLINESTATUS);
}
crmd_ha_msg_filter(xml);
free_xml(xml);
} else {
crm_err("Invalid message class (%d): %.100s", kind, data);
}
free(data);
}
static gboolean
crmd_quorum_callback(unsigned long long seq, gboolean quorate)
{
crm_update_quorum(quorate, FALSE);
post_cache_update(seq);
return TRUE;
}
static void
crmd_cs_destroy(gpointer user_data)
{
if (!pcmk_is_set(fsa_input_register, R_HA_DISCONNECTED)) {
crm_crit("Lost connection to cluster layer, shutting down");
crmd_exit(CRM_EX_DISCONNECT);
} else {
crm_info("Corosync connection closed");
}
}
extern gboolean crm_connect_corosync(crm_cluster_t * cluster);
gboolean
crm_connect_corosync(crm_cluster_t * cluster)
{
if (is_corosync_cluster()) {
crm_set_status_callback(&peer_update_callback);
cluster->cpg.cpg_deliver_fn = crmd_cs_dispatch;
cluster->cpg.cpg_confchg_fn = pcmk_cpg_membership;
cluster->destroy = crmd_cs_destroy;
if (crm_cluster_connect(cluster)) {
- cluster_connect_quorum(crmd_quorum_callback, crmd_cs_destroy);
+ pcmk__corosync_quorum_connect(crmd_quorum_callback,
+ crmd_cs_destroy);
return TRUE;
}
}
return FALSE;
}
#endif
diff --git a/daemons/controld/controld_election.c b/daemons/controld/controld_election.c
index 7e241bdc96..cd1d6b720e 100644
--- a/daemons/controld/controld_election.c
+++ b/daemons/controld/controld_election.c
@@ -1,275 +1,275 @@
/*
* Copyright 2004-2020 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU General Public License version 2
* or later (GPLv2+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <crm/msg_xml.h>
#include <crm/common/xml.h>
#include <crm/cluster/internal.h>
#include <crm/cluster/election.h>
#include <crm/crm.h>
#include <pacemaker-controld.h>
static election_t *fsa_election = NULL;
static gboolean
election_win_cb(gpointer data)
{
register_fsa_input(C_FSA_INTERNAL, I_ELECTION_DC, NULL);
return FALSE;
}
void
controld_election_init(const char *uname)
{
fsa_election = election_init("DC", uname, 60000 /*60s*/, election_win_cb);
}
void
controld_remove_voter(const char *uname)
{
election_remove(fsa_election, uname);
if (pcmk__str_eq(uname, fsa_our_dc, pcmk__str_casei)) {
/* Clear any election dampening in effect. Otherwise, if the lost DC had
* just won, an immediate new election could fizzle out with no new DC.
*/
election_clear_dampening(fsa_election);
}
}
void
controld_election_fini()
{
election_fini(fsa_election);
fsa_election = NULL;
}
void
controld_set_election_period(const char *value)
{
election_timeout_set_period(fsa_election, crm_parse_interval_spec(value));
}
void
controld_stop_election_timer()
{
election_timeout_stop(fsa_election);
}
/* A_ELECTION_VOTE */
void
do_election_vote(long long action,
enum crmd_fsa_cause cause,
enum crmd_fsa_state cur_state,
enum crmd_fsa_input current_input, fsa_data_t * msg_data)
{
gboolean not_voting = FALSE;
/* don't vote if we're in one of these states or wanting to shut down */
switch (cur_state) {
case S_STARTING:
case S_RECOVERY:
case S_STOPPING:
case S_TERMINATE:
crm_warn("Not voting in election, we're in state %s", fsa_state2string(cur_state));
not_voting = TRUE;
break;
case S_ELECTION:
case S_INTEGRATION:
case S_RELEASE_DC:
break;
default:
crm_err("Broken? Voting in state %s", fsa_state2string(cur_state));
break;
}
if (not_voting == FALSE) {
if (pcmk_is_set(fsa_input_register, R_STARTING)) {
not_voting = TRUE;
}
}
if (not_voting) {
if (AM_I_DC) {
register_fsa_input(C_FSA_INTERNAL, I_RELEASE_DC, NULL);
} else {
register_fsa_input(C_FSA_INTERNAL, I_PENDING, NULL);
}
return;
}
election_vote(fsa_election);
return;
}
void
do_election_check(long long action,
enum crmd_fsa_cause cause,
enum crmd_fsa_state cur_state,
enum crmd_fsa_input current_input, fsa_data_t * msg_data)
{
if (fsa_state == S_ELECTION) {
election_check(fsa_election);
} else {
crm_debug("Ignoring election check because we are not in an election");
}
}
/* A_ELECTION_COUNT */
void
do_election_count_vote(long long action,
enum crmd_fsa_cause cause,
enum crmd_fsa_state cur_state,
enum crmd_fsa_input current_input, fsa_data_t * msg_data)
{
enum election_result rc = 0;
ha_msg_input_t *vote = fsa_typed_data(fsa_dt_ha_msg);
if(crm_peer_cache == NULL) {
if (!pcmk_is_set(fsa_input_register, R_SHUTDOWN)) {
crm_err("Internal error, no peer cache");
}
return;
}
rc = election_count_vote(fsa_election, vote->msg, cur_state != S_STARTING);
switch(rc) {
case election_start:
election_reset(fsa_election);
register_fsa_input(C_FSA_INTERNAL, I_ELECTION, NULL);
break;
case election_lost:
update_dc(NULL);
if (fsa_input_register & R_THE_DC) {
register_fsa_input(C_FSA_INTERNAL, I_RELEASE_DC, NULL);
fsa_cib_conn->cmds->set_slave(fsa_cib_conn, cib_scope_local);
} else if (cur_state != S_STARTING) {
register_fsa_input(C_FSA_INTERNAL, I_PENDING, NULL);
}
break;
default:
crm_trace("Election message resulted in state %d", rc);
}
}
static void
feature_update_callback(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data)
{
if (rc != pcmk_ok) {
fsa_data_t *msg_data = NULL;
crm_notice("Feature update failed: %s "CRM_XS" rc=%d",
pcmk_strerror(rc), rc);
register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
}
}
/* A_DC_TAKEOVER */
void
do_dc_takeover(long long action,
enum crmd_fsa_cause cause,
enum crmd_fsa_state cur_state,
enum crmd_fsa_input current_input, fsa_data_t * msg_data)
{
int rc = pcmk_ok;
xmlNode *cib = NULL;
const char *cluster_type = name_for_cluster_type(get_cluster_type());
pid_t watchdog = pcmk__locate_sbd();
crm_info("Taking over DC status for this partition");
controld_set_fsa_input_flags(R_THE_DC);
execute_stonith_cleanup();
election_reset(fsa_election);
controld_set_fsa_input_flags(R_JOIN_OK|R_INVOKE_PE);
fsa_cib_conn->cmds->set_master(fsa_cib_conn, cib_scope_local);
cib = create_xml_node(NULL, XML_TAG_CIB);
crm_xml_add(cib, XML_ATTR_CRM_VERSION, CRM_FEATURE_SET);
fsa_cib_update(XML_TAG_CIB, cib, cib_quorum_override, rc, NULL);
fsa_register_cib_callback(rc, FALSE, NULL, feature_update_callback);
update_attr_delegate(fsa_cib_conn, cib_none, XML_CIB_TAG_CRMCONFIG, NULL,
NULL, NULL, NULL, XML_ATTR_HAVE_WATCHDOG,
pcmk__btoa(watchdog), FALSE, NULL, NULL);
update_attr_delegate(fsa_cib_conn, cib_none, XML_CIB_TAG_CRMCONFIG, NULL, NULL, NULL, NULL,
"dc-version", PACEMAKER_VERSION "-" BUILD_VERSION, FALSE, NULL, NULL);
update_attr_delegate(fsa_cib_conn, cib_none, XML_CIB_TAG_CRMCONFIG, NULL, NULL, NULL, NULL,
"cluster-infrastructure", cluster_type, FALSE, NULL, NULL);
#if SUPPORT_COROSYNC
if (fsa_cluster_name == NULL && is_corosync_cluster()) {
- char *cluster_name = corosync_cluster_name();
+ char *cluster_name = pcmk__corosync_cluster_name();
if (cluster_name) {
update_attr_delegate(fsa_cib_conn, cib_none, XML_CIB_TAG_CRMCONFIG, NULL, NULL, NULL, NULL,
"cluster-name", cluster_name, FALSE, NULL, NULL);
}
free(cluster_name);
}
#endif
mainloop_set_trigger(config_read);
free_xml(cib);
}
/* A_DC_RELEASE */
void
do_dc_release(long long action,
enum crmd_fsa_cause cause,
enum crmd_fsa_state cur_state,
enum crmd_fsa_input current_input, fsa_data_t * msg_data)
{
if (action & A_DC_RELEASE) {
crm_debug("Releasing the role of DC");
controld_clear_fsa_input_flags(R_THE_DC);
controld_expect_sched_reply(NULL);
} else if (action & A_DC_RELEASED) {
crm_info("DC role released");
#if 0
if (are there errors) {
/* we can't stay up if not healthy */
/* or perhaps I_ERROR and go to S_RECOVER? */
result = I_SHUTDOWN;
}
#endif
if (pcmk_is_set(fsa_input_register, R_SHUTDOWN)) {
xmlNode *update = NULL;
crm_node_t *node = crm_get_peer(0, fsa_our_uname);
crm_update_peer_expected(__func__, node, CRMD_JOINSTATE_DOWN);
update = create_node_state_update(node, node_update_expected, NULL,
__func__);
/* Don't need a based response because controld will stop. */
fsa_cib_anon_update_discard_reply(XML_CIB_TAG_STATUS, update);
free_xml(update);
}
register_fsa_input(C_FSA_INTERNAL, I_RELEASE_SUCCESS, NULL);
} else {
crm_err("Unknown DC action %s", fsa_action2string(action));
}
crm_trace("Am I still the DC? %s", AM_I_DC ? XML_BOOLEAN_YES : XML_BOOLEAN_NO);
}
diff --git a/daemons/controld/controld_membership.c b/daemons/controld/controld_membership.c
index 71fea6e5d7..550c19c5cb 100644
--- a/daemons/controld/controld_membership.c
+++ b/daemons/controld/controld_membership.c
@@ -1,439 +1,439 @@
/*
* Copyright 2004-2020 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU General Public License version 2
* or later (GPLv2+) WITHOUT ANY WARRANTY.
*/
/* put these first so that uuid_t is defined without conflicts */
#include <crm_internal.h>
#include <string.h>
#include <crm/crm.h>
#include <crm/msg_xml.h>
#include <crm/common/xml.h>
#include <crm/common/xml_internal.h>
#include <crm/cluster/internal.h>
#include <pacemaker-controld.h>
gboolean membership_flux_hack = FALSE;
void post_cache_update(int instance);
int last_peer_update = 0;
guint highest_born_on = -1;
extern gboolean check_join_state(enum crmd_fsa_state cur_state, const char *source);
static void
reap_dead_nodes(gpointer key, gpointer value, gpointer user_data)
{
crm_node_t *node = value;
if (crm_is_peer_active(node) == FALSE) {
crm_update_peer_join(__func__, node, crm_join_none);
if(node && node->uname) {
if (pcmk__str_eq(fsa_our_uname, node->uname, pcmk__str_casei)) {
crm_err("We're not part of the cluster anymore");
register_fsa_input(C_FSA_INTERNAL, I_ERROR, NULL);
} else if (AM_I_DC == FALSE && pcmk__str_eq(node->uname, fsa_our_dc, pcmk__str_casei)) {
crm_warn("Our DC node (%s) left the cluster", node->uname);
register_fsa_input(C_FSA_INTERNAL, I_ELECTION, NULL);
}
}
if (fsa_state == S_INTEGRATION || fsa_state == S_FINALIZE_JOIN) {
check_join_state(fsa_state, __func__);
}
if(node && node->uuid) {
fail_incompletable_actions(transition_graph, node->uuid);
}
}
}
gboolean ever_had_quorum = FALSE;
void
post_cache_update(int instance)
{
xmlNode *no_op = NULL;
crm_peer_seq = instance;
crm_debug("Updated cache after membership event %d.", instance);
g_hash_table_foreach(crm_peer_cache, reap_dead_nodes, NULL);
controld_set_fsa_input_flags(R_MEMBERSHIP);
if (AM_I_DC) {
populate_cib_nodes(node_update_quick | node_update_cluster | node_update_peer |
node_update_expected, __func__);
}
/*
* If we lost nodes, we should re-check the election status
* Safe to call outside of an election
*/
controld_set_fsa_action_flags(A_ELECTION_CHECK);
trigger_fsa();
/* Membership changed, remind everyone we're here.
* This will aid detection of duplicate DCs
*/
no_op = create_request(CRM_OP_NOOP, NULL, NULL, CRM_SYSTEM_CRMD,
AM_I_DC ? CRM_SYSTEM_DC : CRM_SYSTEM_CRMD, NULL);
send_cluster_message(NULL, crm_msg_crmd, no_op, FALSE);
free_xml(no_op);
}
static void
crmd_node_update_complete(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data)
{
fsa_data_t *msg_data = NULL;
last_peer_update = 0;
if (rc == pcmk_ok) {
crm_trace("Node update %d complete", call_id);
} else if(call_id < pcmk_ok) {
crm_err("Node update failed: %s (%d)", pcmk_strerror(call_id), call_id);
crm_log_xml_debug(msg, "failed");
register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
} else {
crm_err("Node update %d failed: %s (%d)", call_id, pcmk_strerror(rc), rc);
crm_log_xml_debug(msg, "failed");
register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
}
}
/*!
* \internal
* \brief Create an XML node state tag with updates
*
* \param[in,out] node Node whose state will be used for update
* \param[in] flags Bitmask of node_update_flags indicating what to update
* \param[in,out] parent XML node to contain update (or NULL)
* \param[in] source Who requested the update (only used for logging)
*
* \return Pointer to created node state tag
*/
xmlNode *
create_node_state_update(crm_node_t *node, int flags, xmlNode *parent,
const char *source)
{
const char *value = NULL;
xmlNode *node_state;
if (!node->state) {
crm_info("Node update for %s cancelled: no state, not seen yet", node->uname);
return NULL;
}
node_state = create_xml_node(parent, XML_CIB_TAG_STATE);
if (pcmk_is_set(node->flags, crm_remote_node)) {
crm_xml_add(node_state, XML_NODE_IS_REMOTE, XML_BOOLEAN_TRUE);
}
set_uuid(node_state, XML_ATTR_UUID, node);
if (crm_element_value(node_state, XML_ATTR_UUID) == NULL) {
crm_info("Node update for %s cancelled: no id", node->uname);
free_xml(node_state);
return NULL;
}
crm_xml_add(node_state, XML_ATTR_UNAME, node->uname);
if ((flags & node_update_cluster) && node->state) {
crm_xml_add_boolean(node_state, XML_NODE_IN_CLUSTER,
pcmk__str_eq(node->state, CRM_NODE_MEMBER, pcmk__str_casei));
}
if (!pcmk_is_set(node->flags, crm_remote_node)) {
if (flags & node_update_peer) {
value = OFFLINESTATUS;
if (pcmk_is_set(node->processes, crm_get_cluster_proc())) {
value = ONLINESTATUS;
}
crm_xml_add(node_state, XML_NODE_IS_PEER, value);
}
if (flags & node_update_join) {
if (node->join <= crm_join_none) {
value = CRMD_JOINSTATE_DOWN;
} else {
value = CRMD_JOINSTATE_MEMBER;
}
crm_xml_add(node_state, XML_NODE_JOIN_STATE, value);
}
if (flags & node_update_expected) {
crm_xml_add(node_state, XML_NODE_EXPECTED, node->expected);
}
}
crm_xml_add(node_state, XML_ATTR_ORIGIN, source);
return node_state;
}
static void
remove_conflicting_node_callback(xmlNode * msg, int call_id, int rc,
xmlNode * output, void *user_data)
{
char *node_uuid = user_data;
do_crm_log_unlikely(rc == 0 ? LOG_DEBUG : LOG_NOTICE,
"Deletion of the unknown conflicting node \"%s\": %s (rc=%d)",
node_uuid, pcmk_strerror(rc), rc);
}
static void
search_conflicting_node_callback(xmlNode * msg, int call_id, int rc,
xmlNode * output, void *user_data)
{
char *new_node_uuid = user_data;
xmlNode *node_xml = NULL;
if (rc != pcmk_ok) {
if (rc != -ENXIO) {
crm_notice("Searching conflicting nodes for %s failed: %s (%d)",
new_node_uuid, pcmk_strerror(rc), rc);
}
return;
} else if (output == NULL) {
return;
}
if (pcmk__str_eq(crm_element_name(output), XML_CIB_TAG_NODE, pcmk__str_casei)) {
node_xml = output;
} else {
node_xml = pcmk__xml_first_child(output);
}
for (; node_xml != NULL; node_xml = pcmk__xml_next(node_xml)) {
const char *node_uuid = NULL;
const char *node_uname = NULL;
GHashTableIter iter;
crm_node_t *node = NULL;
gboolean known = FALSE;
if (!pcmk__str_eq(crm_element_name(node_xml), XML_CIB_TAG_NODE, pcmk__str_casei)) {
continue;
}
node_uuid = crm_element_value(node_xml, XML_ATTR_ID);
node_uname = crm_element_value(node_xml, XML_ATTR_UNAME);
if (node_uuid == NULL || node_uname == NULL) {
continue;
}
g_hash_table_iter_init(&iter, crm_peer_cache);
while (g_hash_table_iter_next(&iter, NULL, (gpointer *) &node)) {
if (node->uuid
&& pcmk__str_eq(node->uuid, node_uuid, pcmk__str_casei)
&& node->uname
&& pcmk__str_eq(node->uname, node_uname, pcmk__str_casei)) {
known = TRUE;
break;
}
}
if (known == FALSE) {
int delete_call_id = 0;
xmlNode *node_state_xml = NULL;
crm_notice("Deleting unknown node %s/%s which has conflicting uname with %s",
node_uuid, node_uname, new_node_uuid);
delete_call_id = fsa_cib_conn->cmds->remove(fsa_cib_conn, XML_CIB_TAG_NODES, node_xml,
cib_scope_local | cib_quorum_override);
fsa_register_cib_callback(delete_call_id, FALSE, strdup(node_uuid),
remove_conflicting_node_callback);
node_state_xml = create_xml_node(NULL, XML_CIB_TAG_STATE);
crm_xml_add(node_state_xml, XML_ATTR_ID, node_uuid);
crm_xml_add(node_state_xml, XML_ATTR_UNAME, node_uname);
delete_call_id = fsa_cib_conn->cmds->remove(fsa_cib_conn, XML_CIB_TAG_STATUS, node_state_xml,
cib_scope_local | cib_quorum_override);
fsa_register_cib_callback(delete_call_id, FALSE, strdup(node_uuid),
remove_conflicting_node_callback);
free_xml(node_state_xml);
}
}
}
static void
node_list_update_callback(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data)
{
fsa_data_t *msg_data = NULL;
if(call_id < pcmk_ok) {
crm_err("Node list update failed: %s (%d)", pcmk_strerror(call_id), call_id);
crm_log_xml_debug(msg, "update:failed");
register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
} else if(rc < pcmk_ok) {
crm_err("Node update %d failed: %s (%d)", call_id, pcmk_strerror(rc), rc);
crm_log_xml_debug(msg, "update:failed");
register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
}
}
#define NODE_PATH_MAX 512
void
populate_cib_nodes(enum node_update_flags flags, const char *source)
{
int call_id = 0;
gboolean from_hashtable = TRUE;
int call_options = cib_scope_local | cib_quorum_override;
xmlNode *node_list = create_xml_node(NULL, XML_CIB_TAG_NODES);
#if SUPPORT_COROSYNC
if (!pcmk_is_set(flags, node_update_quick) && is_corosync_cluster()) {
- from_hashtable = corosync_initialize_nodelist(node_list);
+ from_hashtable = pcmk__corosync_add_nodes(node_list);
}
#endif
if (from_hashtable) {
GHashTableIter iter;
crm_node_t *node = NULL;
g_hash_table_iter_init(&iter, crm_peer_cache);
while (g_hash_table_iter_next(&iter, NULL, (gpointer *) &node)) {
xmlNode *new_node = NULL;
crm_trace("Creating node entry for %s/%s", node->uname, node->uuid);
if(node->uuid && node->uname) {
char xpath[NODE_PATH_MAX];
/* We need both to be valid */
new_node = create_xml_node(node_list, XML_CIB_TAG_NODE);
crm_xml_add(new_node, XML_ATTR_ID, node->uuid);
crm_xml_add(new_node, XML_ATTR_UNAME, node->uname);
/* Search and remove unknown nodes with the conflicting uname from CIB */
snprintf(xpath, NODE_PATH_MAX,
"/" XML_TAG_CIB "/" XML_CIB_TAG_CONFIGURATION "/" XML_CIB_TAG_NODES
"/" XML_CIB_TAG_NODE "[@uname='%s'][@id!='%s']",
node->uname, node->uuid);
call_id = fsa_cib_conn->cmds->query(fsa_cib_conn, xpath, NULL,
cib_scope_local | cib_xpath);
fsa_register_cib_callback(call_id, FALSE, strdup(node->uuid),
search_conflicting_node_callback);
}
}
}
crm_trace("Populating <nodes> section from %s", from_hashtable ? "hashtable" : "cluster");
fsa_cib_update(XML_CIB_TAG_NODES, node_list, call_options, call_id, NULL);
fsa_register_cib_callback(call_id, FALSE, NULL, node_list_update_callback);
free_xml(node_list);
if (call_id >= pcmk_ok && crm_peer_cache != NULL && AM_I_DC) {
/*
* There is no need to update the local CIB with our values if
* we've not seen valid membership data
*/
GHashTableIter iter;
crm_node_t *node = NULL;
node_list = create_xml_node(NULL, XML_CIB_TAG_STATUS);
g_hash_table_iter_init(&iter, crm_peer_cache);
while (g_hash_table_iter_next(&iter, NULL, (gpointer *) &node)) {
create_node_state_update(node, flags, node_list, source);
}
if (crm_remote_peer_cache) {
g_hash_table_iter_init(&iter, crm_remote_peer_cache);
while (g_hash_table_iter_next(&iter, NULL, (gpointer *) &node)) {
create_node_state_update(node, flags, node_list, source);
}
}
fsa_cib_update(XML_CIB_TAG_STATUS, node_list, call_options, call_id, NULL);
fsa_register_cib_callback(call_id, FALSE, NULL, crmd_node_update_complete);
last_peer_update = call_id;
free_xml(node_list);
}
}
static void
cib_quorum_update_complete(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data)
{
fsa_data_t *msg_data = NULL;
if (rc == pcmk_ok) {
crm_trace("Quorum update %d complete", call_id);
} else {
crm_err("Quorum update %d failed: %s (%d)", call_id, pcmk_strerror(rc), rc);
crm_log_xml_debug(msg, "failed");
register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
}
}
void
crm_update_quorum(gboolean quorum, gboolean force_update)
{
ever_had_quorum |= quorum;
if(ever_had_quorum && quorum == FALSE && no_quorum_suicide_escalation) {
pcmk__panic(__func__);
}
if (AM_I_DC && (force_update || fsa_has_quorum != quorum)) {
int call_id = 0;
xmlNode *update = NULL;
int call_options = cib_scope_local | cib_quorum_override;
update = create_xml_node(NULL, XML_TAG_CIB);
crm_xml_add_int(update, XML_ATTR_HAVE_QUORUM, quorum);
crm_xml_add(update, XML_ATTR_DC_UUID, fsa_our_uuid);
fsa_cib_update(XML_TAG_CIB, update, call_options, call_id, NULL);
crm_debug("Updating quorum status to %s (call=%d)",
pcmk__btoa(quorum), call_id);
fsa_register_cib_callback(call_id, FALSE, NULL, cib_quorum_update_complete);
free_xml(update);
/* Quorum changes usually cause a new transition via other activity:
* quorum gained via a node joining will abort via the node join,
* and quorum lost via a node leaving will usually abort via resource
* activity and/or fencing.
*
* However, it is possible that nothing else causes a transition (e.g.
* someone forces quorum via corosync-cmaptcl, or quorum is lost due to
* a node in standby shutting down cleanly), so here ensure a new
* transition is triggered.
*/
if (quorum) {
/* If quorum was gained, abort after a short delay, in case multiple
* nodes are joining around the same time, so the one that brings us
* to quorum doesn't cause all the remaining ones to be fenced.
*/
abort_after_delay(INFINITY, tg_restart, "Quorum gained", 5000);
} else {
abort_transition(INFINITY, tg_restart, "Quorum lost", NULL);
}
}
fsa_has_quorum = quorum;
}
diff --git a/include/crm/cluster/internal.h b/include/crm/cluster/internal.h
index 9829c49e9f..8321dfd0f2 100644
--- a/include/crm/cluster/internal.h
+++ b/include/crm/cluster/internal.h
@@ -1,351 +1,351 @@
/*
* Copyright 2004-2020 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU Lesser General Public License
* version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
*/
#ifndef CRM_CLUSTER_INTERNAL__H
# define CRM_CLUSTER_INTERNAL__H
# include <crm/cluster.h>
#define pcmk__set_peer_flags(peer, flags_to_set) do { \
(peer)->flags = pcmk__set_flags_as(__func__, __LINE__, LOG_TRACE, \
"Peer", (peer)->uname, \
(peer)->flags, (flags_to_set), \
#flags_to_set); \
} while (0)
#define pcmk__clear_peer_flags(peer, flags_to_clear) do { \
(peer)->flags = pcmk__clear_flags_as(__func__, __LINE__, \
LOG_TRACE, \
"Peer", (peer)->uname, \
(peer)->flags, (flags_to_clear), \
#flags_to_clear); \
} while (0)
typedef struct crm_ais_host_s AIS_Host;
typedef struct crm_ais_msg_s AIS_Message;
struct crm_ais_host_s {
uint32_t id;
uint32_t pid;
gboolean local;
enum crm_ais_msg_types type;
uint32_t size;
char uname[MAX_NAME];
} __attribute__ ((packed));
#if SUPPORT_COROSYNC
# include <qb/qbipc_common.h>
# include <corosync/corotypes.h>
typedef struct qb_ipc_response_header cs_ipc_header_response_t;
#else
typedef struct {
int size __attribute__ ((aligned(8)));
int id __attribute__ ((aligned(8)));
int error __attribute__ ((aligned(8)));
} __attribute__ ((aligned(8))) cs_ipc_header_response_t;
#endif
struct crm_ais_msg_s {
cs_ipc_header_response_t header __attribute__ ((aligned(8)));
uint32_t id;
gboolean is_compressed;
AIS_Host host;
AIS_Host sender;
uint32_t size;
uint32_t compressed_size;
/* 584 bytes */
char data[0];
} __attribute__ ((packed));
/* *INDENT-OFF* */
enum crm_proc_flag {
crm_proc_none = 0x00000001,
// Cluster layers
crm_proc_cpg = 0x04000000,
// Daemons
crm_proc_execd = 0x00000010,
crm_proc_based = 0x00000100,
crm_proc_controld = 0x00000200,
crm_proc_attrd = 0x00001000,
crm_proc_schedulerd = 0x00010000,
crm_proc_fenced = 0x00100000,
};
/* *INDENT-ON* */
/*!
* \internal
* \brief Return the process bit corresponding to the current cluster stack
*
* \return Process flag if detectable, otherwise 0
*/
static inline uint32_t
crm_get_cluster_proc(void)
{
switch (get_cluster_type()) {
case pcmk_cluster_corosync:
return crm_proc_cpg;
default:
break;
}
return crm_proc_none;
}
static inline const char *
peer2text(enum crm_proc_flag proc)
{
const char *text = "unknown";
switch (proc) {
case crm_proc_none:
text = "none";
break;
case crm_proc_based:
text = "pacemaker-based";
break;
case crm_proc_controld:
text = "pacemaker-controld";
break;
case crm_proc_schedulerd:
text = "pacemaker-schedulerd";
break;
case crm_proc_execd:
text = "pacemaker-execd";
break;
case crm_proc_attrd:
text = "pacemaker-attrd";
break;
case crm_proc_fenced:
text = "pacemaker-fenced";
break;
case crm_proc_cpg:
text = "corosync-cpg";
break;
}
return text;
}
static inline const char *
ais_dest(const AIS_Host *host)
{
if (host->local) {
return "local";
} else if (host->size > 0) {
return host->uname;
} else {
return "<all>";
}
}
# define ais_data_len(msg) (msg->is_compressed?msg->compressed_size:msg->size)
/*
typedef enum {
CS_OK = 1,
CS_ERR_LIBRARY = 2,
CS_ERR_VERSION = 3,
CS_ERR_INIT = 4,
CS_ERR_TIMEOUT = 5,
CS_ERR_TRY_AGAIN = 6,
CS_ERR_INVALID_PARAM = 7,
CS_ERR_NO_MEMORY = 8,
CS_ERR_BAD_HANDLE = 9,
CS_ERR_BUSY = 10,
CS_ERR_ACCESS = 11,
CS_ERR_NOT_EXIST = 12,
CS_ERR_NAME_TOO_LONG = 13,
CS_ERR_EXIST = 14,
CS_ERR_NO_SPACE = 15,
CS_ERR_INTERRUPT = 16,
CS_ERR_NAME_NOT_FOUND = 17,
CS_ERR_NO_RESOURCES = 18,
CS_ERR_NOT_SUPPORTED = 19,
CS_ERR_BAD_OPERATION = 20,
CS_ERR_FAILED_OPERATION = 21,
CS_ERR_MESSAGE_ERROR = 22,
CS_ERR_QUEUE_FULL = 23,
CS_ERR_QUEUE_NOT_AVAILABLE = 24,
CS_ERR_BAD_FLAGS = 25,
CS_ERR_TOO_BIG = 26,
CS_ERR_NO_SECTIONS = 27,
CS_ERR_CONTEXT_NOT_FOUND = 28,
CS_ERR_TOO_MANY_GROUPS = 30,
CS_ERR_SECURITY = 100
} cs_error_t;
*/
static inline const char *
ais_error2text(int error)
{
const char *text = "unknown";
# if SUPPORT_COROSYNC
switch (error) {
case CS_OK:
text = "OK";
break;
case CS_ERR_LIBRARY:
text = "Library error";
break;
case CS_ERR_VERSION:
text = "Version error";
break;
case CS_ERR_INIT:
text = "Initialization error";
break;
case CS_ERR_TIMEOUT:
text = "Timeout";
break;
case CS_ERR_TRY_AGAIN:
text = "Try again";
break;
case CS_ERR_INVALID_PARAM:
text = "Invalid parameter";
break;
case CS_ERR_NO_MEMORY:
text = "No memory";
break;
case CS_ERR_BAD_HANDLE:
text = "Bad handle";
break;
case CS_ERR_BUSY:
text = "Busy";
break;
case CS_ERR_ACCESS:
text = "Access error";
break;
case CS_ERR_NOT_EXIST:
text = "Doesn't exist";
break;
case CS_ERR_NAME_TOO_LONG:
text = "Name too long";
break;
case CS_ERR_EXIST:
text = "Exists";
break;
case CS_ERR_NO_SPACE:
text = "No space";
break;
case CS_ERR_INTERRUPT:
text = "Interrupt";
break;
case CS_ERR_NAME_NOT_FOUND:
text = "Name not found";
break;
case CS_ERR_NO_RESOURCES:
text = "No resources";
break;
case CS_ERR_NOT_SUPPORTED:
text = "Not supported";
break;
case CS_ERR_BAD_OPERATION:
text = "Bad operation";
break;
case CS_ERR_FAILED_OPERATION:
text = "Failed operation";
break;
case CS_ERR_MESSAGE_ERROR:
text = "Message error";
break;
case CS_ERR_QUEUE_FULL:
text = "Queue full";
break;
case CS_ERR_QUEUE_NOT_AVAILABLE:
text = "Queue not available";
break;
case CS_ERR_BAD_FLAGS:
text = "Bad flags";
break;
case CS_ERR_TOO_BIG:
text = "Too big";
break;
case CS_ERR_NO_SECTIONS:
text = "No sections";
break;
}
# endif
return text;
}
static inline const char *
msg_type2text(enum crm_ais_msg_types type)
{
const char *text = "unknown";
switch (type) {
case crm_msg_none:
text = "unknown";
break;
case crm_msg_ais:
text = "ais";
break;
case crm_msg_cib:
text = "cib";
break;
case crm_msg_crmd:
text = "crmd";
break;
case crm_msg_pe:
text = "pengine";
break;
case crm_msg_te:
text = "tengine";
break;
case crm_msg_lrmd:
text = "lrmd";
break;
case crm_msg_attrd:
text = "attrd";
break;
case crm_msg_stonithd:
text = "stonithd";
break;
case crm_msg_stonith_ng:
text = "stonith-ng";
break;
}
return text;
}
# if SUPPORT_COROSYNC
gboolean send_cpg_iov(struct iovec * iov);
-char *corosync_cluster_name(void);
+char *pcmk__corosync_cluster_name(void);
-gboolean corosync_initialize_nodelist(xmlNode *xml_parent);
+bool pcmk__corosync_add_nodes(xmlNode *xml_parent);
gboolean send_cluster_message_cs(xmlNode * msg, gboolean local,
crm_node_t * node, enum crm_ais_msg_types dest);
# endif
crm_node_t *crm_update_peer_proc(const char *source, crm_node_t * peer,
uint32_t flag, const char *status);
crm_node_t *crm_update_peer_state(const char *source, crm_node_t * node,
const char *state, uint64_t membership);
void crm_update_peer_uname(crm_node_t *node, const char *uname);
void crm_update_peer_expected(const char *source, crm_node_t * node, const char *expected);
void crm_reap_unseen_nodes(uint64_t ring_id);
-gboolean cluster_connect_quorum(gboolean(*dispatch) (unsigned long long, gboolean),
- void (*destroy) (gpointer));
-
+void pcmk__corosync_quorum_connect(gboolean (*dispatch)(unsigned long long,
+ gboolean),
+ void (*destroy) (gpointer));
crm_node_t * crm_find_peer_full(unsigned int id, const char *uname, int flags);
crm_node_t * crm_find_peer(unsigned int id, const char *uname);
void crm_peer_caches_refresh(xmlNode *cib);
crm_node_t *crm_find_known_peer_full(unsigned int id, const char *uname, int flags);
#endif
diff --git a/lib/cluster/corosync.c b/lib/cluster/corosync.c
index d51a2ce137..453cd8d99d 100644
--- a/lib/cluster/corosync.c
+++ b/lib/cluster/corosync.c
@@ -1,713 +1,798 @@
/*
* Copyright 2004-2020 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU Lesser General Public License
* version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <inttypes.h> /* U64T ~ PRIu64 */
#include <bzlib.h>
#include <crm/common/ipc.h>
#include <crm/cluster/internal.h>
#include <crm/common/mainloop.h>
#include <sys/utsname.h>
#include <qb/qbipcc.h>
#include <qb/qbutil.h>
#include <corosync/corodefs.h>
#include <corosync/corotypes.h>
#include <corosync/hdb.h>
#include <corosync/cfg.h>
#include <corosync/cmap.h>
#include <corosync/quorum.h>
#include <crm/msg_xml.h>
#include <crm/common/ipc_internal.h> /* PCMK__SPECIAL_PID* */
#include "crmcluster_private.h"
-quorum_handle_t pcmk_quorum_handle = 0;
+static quorum_handle_t pcmk_quorum_handle = 0;
-gboolean(*quorum_app_callback) (unsigned long long seq, gboolean quorate) = NULL;
+static gboolean (*quorum_app_callback)(unsigned long long seq,
+ gboolean quorate) = NULL;
+/*!
+ * \internal
+ * \brief Get the Corosync UUID associated with a Pacemaker node
+ *
+ * \param[in] node Pacemaker node
+ *
+ * \return Newly allocated string with node's Corosync UUID, or NULL if unknown
+ * \note It is the caller's responsibility to free the result with free().
+ */
char *
pcmk__corosync_uuid(crm_node_t *node)
{
- if (node && is_corosync_cluster()) {
+ if ((node != NULL) && is_corosync_cluster()) {
if (node->id > 0) {
return crm_strdup_printf("%u", node->id);
} else {
crm_info("Node %s is not yet known by corosync", node->uname);
}
}
return NULL;
}
static bool
node_name_is_valid(const char *key, const char *name)
{
int octet;
if (name == NULL) {
crm_trace("%s is empty", key);
return false;
} else if (sscanf(name, "%d.%d.%d.%d", &octet, &octet, &octet, &octet) == 4) {
crm_trace("%s contains an IPv4 address (%s), ignoring", key, name);
return false;
} else if (strstr(name, ":") != NULL) {
crm_trace("%s contains an IPv6 address (%s), ignoring", key, name);
return false;
}
crm_trace("'%s: %s' is valid", key, name);
return true;
}
/*
- * CFG functionality stolen from node_name() in corosync-quorumtool.c
- * This resolves the first address assigned to a node and returns the name or IP address.
+ * \internal
+ * \brief Get Corosync node name corresponding to a node ID
+ *
+ * \param[in] cmap_handle Connection to Corosync CMAP
+ * \param[in] nodeid Node ID to check
+ *
+ * \return Newly allocated string with name or (if no name) IP address
+ * associated with first address assigned to a Corosync node ID (or NULL
+ * if unknown)
+ * \note It is the caller's responsibility to free the result with free().
*/
char *
pcmk__corosync_name(uint64_t /*cmap_handle_t */ cmap_handle, uint32_t nodeid)
{
+ // Originally based on corosync-quorumtool.c:node_name()
+
int lpc = 0;
cs_error_t rc = CS_OK;
int retries = 0;
char *name = NULL;
cmap_handle_t local_handle = 0;
int fd = -1;
uid_t found_uid = 0;
gid_t found_gid = 0;
pid_t found_pid = 0;
int rv;
if (nodeid == 0) {
nodeid = get_local_nodeid(0);
}
if (cmap_handle == 0 && local_handle == 0) {
retries = 0;
crm_trace("Initializing CMAP connection");
do {
rc = cmap_initialize(&local_handle);
if (rc != CS_OK) {
retries++;
crm_debug("API connection setup failed: %s. Retrying in %ds", cs_strerror(rc),
retries);
sleep(retries);
}
} while (retries < 5 && rc != CS_OK);
if (rc != CS_OK) {
crm_warn("Could not connect to Cluster Configuration Database API, error %s",
cs_strerror(rc));
local_handle = 0;
}
}
if (cmap_handle == 0) {
cmap_handle = local_handle;
rc = cmap_fd_get(cmap_handle, &fd);
if (rc != CS_OK) {
crm_err("Could not obtain the CMAP API connection: %s (%d)",
cs_strerror(rc), rc);
goto bail;
}
/* CMAP provider run as root (in given user namespace, anyway)? */
if (!(rv = crm_ipc_is_authentic_process(fd, (uid_t) 0,(gid_t) 0, &found_pid,
&found_uid, &found_gid))) {
crm_err("CMAP provider is not authentic:"
" process %lld (uid: %lld, gid: %lld)",
(long long) PCMK__SPECIAL_PID_AS_0(found_pid),
(long long) found_uid, (long long) found_gid);
goto bail;
} else if (rv < 0) {
crm_err("Could not verify authenticity of CMAP provider: %s (%d)",
strerror(-rv), -rv);
goto bail;
}
}
while (name == NULL && cmap_handle != 0) {
uint32_t id = 0;
char *key = NULL;
key = crm_strdup_printf("nodelist.node.%d.nodeid", lpc);
rc = cmap_get_uint32(cmap_handle, key, &id);
crm_trace("Checking %u vs %u from %s", nodeid, id, key);
free(key);
if (rc != CS_OK) {
break;
}
if (nodeid == id) {
- crm_trace("Searching for node name for %u in nodelist.node.%d %s", nodeid, lpc, name);
+ crm_trace("Searching for node name for %u in nodelist.node.%d %s",
+ nodeid, lpc, crm_str(name));
if (name == NULL) {
key = crm_strdup_printf("nodelist.node.%d.name", lpc);
cmap_get_string(cmap_handle, key, &name);
- crm_trace("%s = %s", key, name);
+ crm_trace("%s = %s", key, crm_str(name));
free(key);
}
if (name == NULL) {
key = crm_strdup_printf("nodelist.node.%d.ring0_addr", lpc);
cmap_get_string(cmap_handle, key, &name);
- crm_trace("%s = %s", key, name);
+ crm_trace("%s = %s", key, crm_str(name));
if (!node_name_is_valid(key, name)) {
free(name);
name = NULL;
}
free(key);
}
break;
}
lpc++;
}
bail:
if(local_handle) {
cmap_finalize(local_handle);
}
if (name == NULL) {
crm_info("Unable to get node name for nodeid %u", nodeid);
}
return name;
}
+/*!
+ * \internal
+ * \brief Disconnect from Corosync cluster
+ *
+ * \param[in] cluster Cluster connection to disconnect
+ */
void
pcmk__corosync_disconnect(crm_cluster_t *cluster)
{
cluster_disconnect_cpg(cluster);
if (pcmk_quorum_handle) {
quorum_finalize(pcmk_quorum_handle);
pcmk_quorum_handle = 0;
}
crm_notice("Disconnected from Corosync");
}
+/*!
+ * \internal
+ * \brief Dispatch function for quorum connection file descriptor
+ *
+ * \param[in] user_data Ignored
+ *
+ * \return 0 on success, -1 on error (per mainloop_io_t interface)
+ */
static int
-pcmk_quorum_dispatch(gpointer user_data)
+quorum_dispatch_cb(gpointer user_data)
{
- int rc = 0;
+ int rc = quorum_dispatch(pcmk_quorum_handle, CS_DISPATCH_ALL);
- rc = quorum_dispatch(pcmk_quorum_handle, CS_DISPATCH_ALL);
if (rc < 0) {
crm_err("Connection to the Quorum API failed: %d", rc);
quorum_finalize(pcmk_quorum_handle);
pcmk_quorum_handle = 0;
return -1;
}
return 0;
}
+/*!
+ * \internal
+ * \brief Notification callback for Corosync quorum connection
+ *
+ * \param[in] handle Corosync quorum connection
+ * \param[in] quorate Whether cluster is quorate
+ * \param[in] ring_id Corosync ring ID
+ * \param[in] view_list_entries Number of entries in \p view_list
+ * \param[in] view_list Corosync node IDs in membership
+ */
static void
-pcmk_quorum_notification(quorum_handle_t handle,
- uint32_t quorate,
- uint64_t ring_id, uint32_t view_list_entries, uint32_t * view_list)
+quorum_notification_cb(quorum_handle_t handle, uint32_t quorate,
+ uint64_t ring_id, uint32_t view_list_entries,
+ uint32_t *view_list)
{
int i;
GHashTableIter iter;
crm_node_t *node = NULL;
static gboolean init_phase = TRUE;
if (quorate != crm_have_quorum) {
if (quorate) {
crm_notice("Quorum acquired " CRM_XS " membership=%" U64T " members=%lu",
ring_id, (long unsigned int)view_list_entries);
} else {
crm_warn("Quorum lost " CRM_XS " membership=%" U64T " members=%lu",
ring_id, (long unsigned int)view_list_entries);
}
crm_have_quorum = quorate;
} else {
crm_info("Quorum %s " CRM_XS " membership=%" U64T " members=%lu",
(quorate? "retained" : "still lost"), ring_id,
(long unsigned int)view_list_entries);
}
if (view_list_entries == 0 && init_phase) {
crm_info("Corosync membership is still forming, ignoring");
return;
}
init_phase = FALSE;
/* Reset last_seen for all cached nodes so we can tell which ones aren't
* in the view list */
g_hash_table_iter_init(&iter, crm_peer_cache);
while (g_hash_table_iter_next(&iter, NULL, (gpointer *) &node)) {
node->last_seen = 0;
}
/* Update the peer cache for each node in view list */
for (i = 0; i < view_list_entries; i++) {
uint32_t id = view_list[i];
crm_debug("Member[%d] %u ", i, id);
/* Get this node's peer cache entry (adding one if not already there) */
node = crm_get_peer(id, NULL);
if (node->uname == NULL) {
char *name = pcmk__corosync_name(0, id);
crm_info("Obtaining name for new node %u", id);
node = crm_get_peer(id, name);
free(name);
}
/* Update the node state (including updating last_seen to ring_id) */
crm_update_peer_state(__func__, node, CRM_NODE_MEMBER, ring_id);
}
/* Remove any peer cache entries we didn't update */
crm_reap_unseen_nodes(ring_id);
if (quorum_app_callback) {
quorum_app_callback(ring_id, quorate);
}
}
quorum_callbacks_t quorum_callbacks = {
- .quorum_notify_fn = pcmk_quorum_notification,
+ .quorum_notify_fn = quorum_notification_cb,
};
-gboolean
-cluster_connect_quorum(gboolean(*dispatch) (unsigned long long, gboolean),
- void (*destroy) (gpointer))
+/*!
+ * \internal
+ * \brief Connect to Corosync quorum service
+ *
+ * \param[in] dispatch Connection dispatch callback
+ * \param[in] destroy Connection destroy callback
+ */
+void
+pcmk__corosync_quorum_connect(gboolean (*dispatch)(unsigned long long,
+ gboolean),
+ void (*destroy)(gpointer))
{
cs_error_t rc;
int fd = 0;
int quorate = 0;
uint32_t quorum_type = 0;
struct mainloop_fd_callbacks quorum_fd_callbacks;
uid_t found_uid = 0;
gid_t found_gid = 0;
pid_t found_pid = 0;
int rv;
- quorum_fd_callbacks.dispatch = pcmk_quorum_dispatch;
+ quorum_fd_callbacks.dispatch = quorum_dispatch_cb;
quorum_fd_callbacks.destroy = destroy;
crm_debug("Configuring Pacemaker to obtain quorum from Corosync");
rc = quorum_initialize(&pcmk_quorum_handle, &quorum_callbacks, &quorum_type);
if (rc != CS_OK) {
crm_err("Could not connect to the Quorum API: %s (%d)",
cs_strerror(rc), rc);
goto bail;
} else if (quorum_type != QUORUM_SET) {
crm_err("Corosync quorum is not configured");
goto bail;
}
rc = quorum_fd_get(pcmk_quorum_handle, &fd);
if (rc != CS_OK) {
crm_err("Could not obtain the Quorum API connection: %s (%d)",
strerror(rc), rc);
goto bail;
}
/* Quorum provider run as root (in given user namespace, anyway)? */
if (!(rv = crm_ipc_is_authentic_process(fd, (uid_t) 0,(gid_t) 0, &found_pid,
&found_uid, &found_gid))) {
crm_err("Quorum provider is not authentic:"
" process %lld (uid: %lld, gid: %lld)",
(long long) PCMK__SPECIAL_PID_AS_0(found_pid),
(long long) found_uid, (long long) found_gid);
rc = CS_ERR_ACCESS;
goto bail;
} else if (rv < 0) {
crm_err("Could not verify authenticity of Quorum provider: %s (%d)",
strerror(-rv), -rv);
rc = CS_ERR_ACCESS;
goto bail;
}
rc = quorum_getquorate(pcmk_quorum_handle, &quorate);
if (rc != CS_OK) {
crm_err("Could not obtain the current Quorum API state: %d", rc);
goto bail;
}
if (quorate) {
crm_notice("Quorum acquired");
} else {
crm_warn("Quorum lost");
}
quorum_app_callback = dispatch;
crm_have_quorum = quorate;
rc = quorum_trackstart(pcmk_quorum_handle, CS_TRACK_CHANGES | CS_TRACK_CURRENT);
if (rc != CS_OK) {
crm_err("Could not setup Quorum API notifications: %d", rc);
goto bail;
}
mainloop_add_fd("quorum", G_PRIORITY_HIGH, fd, dispatch, &quorum_fd_callbacks);
- corosync_initialize_nodelist(NULL);
+ pcmk__corosync_add_nodes(NULL);
bail:
if (rc != CS_OK) {
quorum_finalize(pcmk_quorum_handle);
- return FALSE;
}
- return TRUE;
}
+/*!
+ * \internal
+ * \brief Connect to Corosync cluster layer
+ *
+ * \param[in] cluster Initialized cluster object to connect
+ */
gboolean
-pcmk__corosync_connect(crm_cluster_t * cluster)
+pcmk__corosync_connect(crm_cluster_t *cluster)
{
crm_node_t *peer = NULL;
enum cluster_type_e stack = get_cluster_type();
crm_peer_init();
if (stack != pcmk_cluster_corosync) {
crm_err("Invalid cluster type: %s " CRM_XS " stack=%d",
name_for_cluster_type(stack), stack);
return FALSE;
}
if (!cluster_connect_cpg(cluster)) {
// Error message was logged by cluster_connect_cpg()
return FALSE;
}
crm_info("Connection to %s established", name_for_cluster_type(stack));
cluster->nodeid = get_local_nodeid(0);
if (cluster->nodeid == 0) {
crm_err("Could not determine local node ID");
return FALSE;
}
cluster->uname = get_node_name(0);
if (cluster->uname == NULL) {
crm_err("Could not determine local node name");
return FALSE;
}
// Ensure local node always exists in peer cache
peer = crm_get_peer(cluster->nodeid, cluster->uname);
cluster->uuid = pcmk__corosync_uuid(peer);
return TRUE;
}
+/*!
+ * \internal
+ * \brief Check whether a Corosync cluster is active
+ *
+ * \return pcmk_cluster_corosync if Corosync is found, else pcmk_cluster_unknown
+ */
enum cluster_type_e
pcmk__corosync_detect(void)
{
int rc = CS_OK;
cmap_handle_t handle;
rc = cmap_initialize(&handle);
switch(rc) {
case CS_OK:
break;
case CS_ERR_SECURITY:
crm_debug("Failed to initialize the cmap API: Permission denied (%d)", rc);
/* It's there, we just can't talk to it.
* Good enough for us to identify as 'corosync'
*/
return pcmk_cluster_corosync;
default:
crm_info("Failed to initialize the cmap API: %s (%d)",
ais_error2text(rc), rc);
return pcmk_cluster_unknown;
}
cmap_finalize(handle);
return pcmk_cluster_corosync;
}
+/*!
+ * \brief Check whether a Corosync cluster peer is active
+ *
+ * \param[in] node Node to check
+ *
+ * \return TRUE if \p node is an active Corosync peer, otherwise FALSE
+ */
gboolean
-crm_is_corosync_peer_active(const crm_node_t * node)
+crm_is_corosync_peer_active(const crm_node_t *node)
{
if (node == NULL) {
- crm_trace("NULL");
+ crm_trace("Corosync peer inactive: NULL");
return FALSE;
} else if (!pcmk__str_eq(node->state, CRM_NODE_MEMBER, pcmk__str_casei)) {
- crm_trace("%s: state=%s", node->uname, node->state);
+ crm_trace("Corosync peer %s inactive: state=%s",
+ node->uname, node->state);
return FALSE;
- } else if ((node->processes & crm_proc_cpg) == 0) {
- crm_trace("%s: processes=%.16x", node->uname, node->processes);
+ } else if (!pcmk_is_set(node->processes, crm_proc_cpg)) {
+ crm_trace("Corosync peer %s inactive: processes=%.16x",
+ node->uname, node->processes);
return FALSE;
}
return TRUE;
}
-gboolean
-corosync_initialize_nodelist(xmlNode *xml_parent)
+/*!
+ * \internal
+ * \brief Load Corosync node list (via CMAP) into peer cache and optionally XML
+ *
+ * \param[in] xml_parent If not NULL, add a <node> entry to this for each node
+ *
+ * \return true if any nodes were found, false otherwise
+ */
+bool
+pcmk__corosync_add_nodes(xmlNode *xml_parent)
{
int lpc = 0;
cs_error_t rc = CS_OK;
int retries = 0;
- gboolean any = FALSE;
+ bool any = false;
cmap_handle_t cmap_handle;
int fd = -1;
uid_t found_uid = 0;
gid_t found_gid = 0;
pid_t found_pid = 0;
int rv;
do {
rc = cmap_initialize(&cmap_handle);
if (rc != CS_OK) {
retries++;
crm_debug("API connection setup failed: %s. Retrying in %ds", cs_strerror(rc),
retries);
sleep(retries);
}
} while (retries < 5 && rc != CS_OK);
if (rc != CS_OK) {
crm_warn("Could not connect to Cluster Configuration Database API, error %d", rc);
- return FALSE;
+ return false;
}
rc = cmap_fd_get(cmap_handle, &fd);
if (rc != CS_OK) {
crm_err("Could not obtain the CMAP API connection: %s (%d)",
cs_strerror(rc), rc);
goto bail;
}
/* CMAP provider run as root (in given user namespace, anyway)? */
if (!(rv = crm_ipc_is_authentic_process(fd, (uid_t) 0,(gid_t) 0, &found_pid,
&found_uid, &found_gid))) {
crm_err("CMAP provider is not authentic:"
" process %lld (uid: %lld, gid: %lld)",
(long long) PCMK__SPECIAL_PID_AS_0(found_pid),
(long long) found_uid, (long long) found_gid);
goto bail;
} else if (rv < 0) {
crm_err("Could not verify authenticity of CMAP provider: %s (%d)",
strerror(-rv), -rv);
goto bail;
}
crm_peer_init();
crm_trace("Initializing corosync nodelist");
for (lpc = 0; TRUE; lpc++) {
uint32_t nodeid = 0;
char *name = NULL;
char *key = NULL;
key = crm_strdup_printf("nodelist.node.%d.nodeid", lpc);
rc = cmap_get_uint32(cmap_handle, key, &nodeid);
free(key);
if (rc != CS_OK) {
break;
}
name = pcmk__corosync_name(cmap_handle, nodeid);
if (name != NULL) {
GHashTableIter iter;
crm_node_t *node = NULL;
g_hash_table_iter_init(&iter, crm_peer_cache);
while (g_hash_table_iter_next(&iter, NULL, (gpointer *) &node)) {
if(node && node->uname && strcasecmp(node->uname, name) == 0) {
if (node->id && node->id != nodeid) {
crm_crit("Nodes %u and %u share the same name '%s': shutting down", node->id,
nodeid, name);
crm_exit(CRM_EX_FATAL);
}
}
}
}
if (nodeid > 0 || name != NULL) {
crm_trace("Initializing node[%d] %u = %s", lpc, nodeid, name);
crm_get_peer(nodeid, name);
}
if (nodeid > 0 && name != NULL) {
- any = TRUE;
+ any = true;
if (xml_parent) {
xmlNode *node = create_xml_node(xml_parent, XML_CIB_TAG_NODE);
crm_xml_set_id(node, "%u", nodeid);
crm_xml_add(node, XML_ATTR_UNAME, name);
}
}
free(name);
}
bail:
cmap_finalize(cmap_handle);
return any;
}
+/*!
+ * \internal
+ * \brief Get cluster name from Corosync configuration (via CMAP)
+ *
+ * \return Newly allocated string with cluster name if configured, or NULL
+ */
char *
-corosync_cluster_name(void)
+pcmk__corosync_cluster_name(void)
{
cmap_handle_t handle;
char *cluster_name = NULL;
cs_error_t rc = CS_OK;
int fd = -1;
uid_t found_uid = 0;
gid_t found_gid = 0;
pid_t found_pid = 0;
int rv;
rc = cmap_initialize(&handle);
if (rc != CS_OK) {
crm_info("Failed to initialize the cmap API: %s (%d)",
cs_strerror(rc), rc);
return NULL;
}
rc = cmap_fd_get(handle, &fd);
if (rc != CS_OK) {
crm_err("Could not obtain the CMAP API connection: %s (%d)",
cs_strerror(rc), rc);
goto bail;
}
/* CMAP provider run as root (in given user namespace, anyway)? */
if (!(rv = crm_ipc_is_authentic_process(fd, (uid_t) 0,(gid_t) 0, &found_pid,
&found_uid, &found_gid))) {
crm_err("CMAP provider is not authentic:"
" process %lld (uid: %lld, gid: %lld)",
(long long) PCMK__SPECIAL_PID_AS_0(found_pid),
(long long) found_uid, (long long) found_gid);
goto bail;
} else if (rv < 0) {
crm_err("Could not verify authenticity of CMAP provider: %s (%d)",
strerror(-rv), -rv);
goto bail;
}
rc = cmap_get_string(handle, "totem.cluster_name", &cluster_name);
if (rc != CS_OK) {
crm_info("Cannot get totem.cluster_name: %s (%d)", cs_strerror(rc), rc);
} else {
crm_debug("cmap totem.cluster_name = '%s'", cluster_name);
}
bail:
cmap_finalize(handle);
return cluster_name;
}
/*!
* \internal
* \brief Check (via CMAP) whether Corosync configuration has a node list
*
* \return true if Corosync has node list, otherwise false
*/
bool
pcmk__corosync_has_nodelist(void)
{
cs_error_t cs_rc = CS_OK;
int retries = 0;
cmap_handle_t cmap_handle;
cmap_iter_handle_t iter_handle;
char key_name[CMAP_KEYNAME_MAXLEN + 1];
int fd = -1;
uid_t found_uid = 0;
gid_t found_gid = 0;
pid_t found_pid = 0;
int rc = pcmk_ok;
static bool got_result = false;
static bool result = false;
if (got_result) {
return result;
}
// Connect to CMAP
do {
cs_rc = cmap_initialize(&cmap_handle);
if (cs_rc != CS_OK) {
retries++;
crm_debug("CMAP connection failed: %s (rc=%d, retrying in %ds)",
cs_strerror(cs_rc), cs_rc, retries);
sleep(retries);
}
} while ((retries < 5) && (cs_rc != CS_OK));
if (cs_rc != CS_OK) {
crm_warn("Assuming Corosync does not have node list: "
"CMAP connection failed (%s) " CRM_XS " rc=%d",
cs_strerror(cs_rc), cs_rc);
return false;
}
// Get CMAP connection file descriptor
cs_rc = cmap_fd_get(cmap_handle, &fd);
if (cs_rc != CS_OK) {
crm_warn("Assuming Corosync does not have node list: "
"CMAP unusable (%s) " CRM_XS " rc=%d",
cs_strerror(cs_rc), cs_rc);
goto bail;
}
// Check whether CMAP connection is authentic (i.e. provided by root)
rc = crm_ipc_is_authentic_process(fd, (uid_t) 0, (gid_t) 0,
&found_pid, &found_uid, &found_gid);
if (rc == 0) {
crm_warn("Assuming Corosync does not have node list: "
"CMAP provider is inauthentic "
CRM_XS " pid=%lld uid=%lld gid=%lld",
(long long) PCMK__SPECIAL_PID_AS_0(found_pid),
(long long) found_uid, (long long) found_gid);
goto bail;
} else if (rc < 0) {
crm_warn("Assuming Corosync does not have node list: "
"Could not verify CMAP authenticity (%s) " CRM_XS " rc=%d",
pcmk_strerror(rc), rc);
goto bail;
}
// Check whether nodelist section is presetn
cs_rc = cmap_iter_init(cmap_handle, "nodelist", &iter_handle);
if (cs_rc != CS_OK) {
crm_warn("Assuming Corosync does not have node list: "
"CMAP not readable (%s) " CRM_XS " rc=%d",
cs_strerror(cs_rc), cs_rc);
goto bail;
}
cs_rc = cmap_iter_next(cmap_handle, iter_handle, key_name, NULL, NULL);
if (cs_rc == CS_OK) {
result = true;
}
cmap_iter_finalize(cmap_handle, iter_handle);
got_result = true;
crm_debug("Corosync %s node list", (result? "has" : "does not have"));
bail:
cmap_finalize(cmap_handle);
return result;
}