static void
ipc_proxy_destroy(qb_ipcs_connection_t * c)
{
crm_trace("Connection %p", c);
ipc_proxy_closed(c);
}
/*
* version1 < version2 : -1
* version1 = version2 : 0
* version1 > version2 : 1
*/
int
compare_version(const char *version1, const char *version2)
{
int rc = 0;
int lpc = 0;
char *ver1_copy = NULL, *ver2_copy = NULL;
char *rest1 = NULL, *rest2 = NULL;
if (version1 == NULL && version2 == NULL) {
return 0;
} else if (version1 == NULL) {
return -1;
} else if (version2 == NULL) {
return 1;
}
ver1_copy = strdup(version1);
ver2_copy = strdup(version2);
rest1 = ver1_copy;
rest2 = ver2_copy;
while (1) {
int digit1 = 0;
int digit2 = 0;
lpc++;
if (rest1 == rest2) {
break;
}
if (rest1 != NULL) {
digit1 = crm_version_helper(rest1, &rest1);
}
if (rest2 != NULL) {
digit2 = crm_version_helper(rest2, &rest2);
}
if (digit1 < digit2) {
rc = -1;
break;
} else if (digit1 > digit2) {
rc = 1;
break;
}
if (rest1 != NULL && rest1[0] == '.') {
rest1++;
}
if (rest1 != NULL && rest1[0] == 0) {
rest1 = NULL;
}
if (rest2 != NULL && rest2[0] == '.') {
rest2++;
}
if (rest2 != NULL && rest2[0] == 0) {
rest2 = NULL;
}
}
free(ver1_copy);
free(ver2_copy);
if (rc == 0) {
crm_trace("%s == %s (%d)", version1, version2, lpc);
} else if (rc < 0) {
crm_trace("%s < %s (%d)", version1, version2, lpc);
} else if (rc > 0) {
crm_trace("%s > %s (%d)", version1, version2, lpc);
}
return rc;
}
static void
st_ipc_destroy(qb_ipcs_connection_t * c)
{
crm_trace("Connection %p destroyed", c);
st_ipc_closed(c);
}
gboolean
cib_action_update(crm_action_t * action, int status, int op_rc)
{
lrmd_event_data_t *op = NULL;
xmlNode *state = NULL;
xmlNode *rsc = NULL;
xmlNode *xml_op = NULL;
xmlNode *action_rsc = NULL;
int rc = pcmk_ok;
const char *name = NULL;
const char *value = NULL;
const char *rsc_id = NULL;
const char *task = crm_element_value(action->xml, XML_LRM_ATTR_TASK);
const char *target = crm_element_value(action->xml, XML_LRM_ATTR_TARGET);
const char *task_uuid = crm_element_value(action->xml, XML_LRM_ATTR_TASK_KEY);
const char *target_uuid = crm_element_value(action->xml, XML_LRM_ATTR_TARGET_UUID);
int call_options = cib_quorum_override | cib_scope_local;
int target_rc = get_target_rc(action);
if (status == PCMK_LRM_OP_PENDING) {
crm_debug("%s %d: Recording pending operation %s on %s",
crm_element_name(action->xml), action->id, task_uuid, target);
} else {
crm_warn("%s %d: %s on %s timed out",
crm_element_name(action->xml), action->id, task_uuid, target);
}
action_rsc = find_xml_node(action->xml, XML_CIB_TAG_RESOURCE, TRUE);
if (action_rsc == NULL) {
return FALSE;
}
rsc_id = ID(action_rsc);
CRM_CHECK(rsc_id != NULL, crm_log_xml_err(action->xml, "Bad:action");
return FALSE);
/*
update the CIB
<node_state id="hadev">
<lrm>
<lrm_resources>
<lrm_resource id="rsc2" last_op="start" op_code="0" target="hadev"/>
*/
state = create_xml_node(NULL, XML_CIB_TAG_STATE);
crm_xml_add(state, XML_ATTR_UUID, target_uuid);
crm_xml_add(state, XML_ATTR_UNAME, target);
rsc = create_xml_node(state, XML_CIB_TAG_LRM);
crm_xml_add(rsc, XML_ATTR_ID, target_uuid);
rsc = create_xml_node(rsc, XML_LRM_TAG_RESOURCES);
rsc = create_xml_node(rsc, XML_LRM_TAG_RESOURCE);
crm_xml_add(rsc, XML_ATTR_ID, rsc_id);
name = XML_ATTR_TYPE;
value = crm_element_value(action_rsc, name);
crm_xml_add(rsc, name, value);
name = XML_AGENT_ATTR_CLASS;
value = crm_element_value(action_rsc, name);
crm_xml_add(rsc, name, value);
name = XML_AGENT_ATTR_PROVIDER;
value = crm_element_value(action_rsc, name);
crm_xml_add(rsc, name, value);
op = convert_graph_action(NULL, action, status, op_rc);
op->call_id = -1;
op->user_data = generate_transition_key(transition_graph->id, action->id, target_rc, te_uuid);
xml_op = create_operation_update(rsc, op, CRM_FEATURE_SET, target_rc, target, __FUNCTION__, LOG_INFO);
lrmd_free_event(op);
crm_trace("Updating CIB with \"%s\" (%s): %s %s on %s",
status < 0 ? "new action" : XML_ATTR_TIMEOUT,
crm_element_name(action->xml), crm_str(task), rsc_id, target);
crm_log_xml_trace(xml_op, "Op");
rc = fsa_cib_conn->cmds->update(fsa_cib_conn, XML_CIB_TAG_STATUS, state, call_options);
crm_trace("Updating CIB with %s action %d: %s on %s (call_id=%d)",
services_lrm_status_str(status), action->id, task_uuid, target, rc);
fsa_register_cib_callback(rc, FALSE, NULL, cib_action_updated);
free_xml(state);
action->sent_update = TRUE;
if (rc < pcmk_ok) {
return FALSE;
}
return TRUE;
}
gboolean
test_date_expression(xmlNode * time_expr, crm_time_t * now)
{
crm_time_t *start = NULL;
crm_time_t *end = NULL;
const char *value = NULL;
const char *op = crm_element_value(time_expr, "operation");
xmlNode *duration_spec = NULL;
xmlNode *date_spec = NULL;
gboolean passed = FALSE;
crm_trace("Testing expression: %s", ID(time_expr));
duration_spec = first_named_child(time_expr, "duration");
date_spec = first_named_child(time_expr, "date_spec");
value = crm_element_value(time_expr, "start");
if (value != NULL) {
start = crm_time_new(value);
}
value = crm_element_value(time_expr, "end");
if (value != NULL) {
end = crm_time_new(value);
}
if (start != NULL && end == NULL && duration_spec != NULL) {
end = parse_xml_duration(start, duration_spec);
}
if (op == NULL) {
op = "in_range";
}
if (safe_str_eq(op, "date_spec") || safe_str_eq(op, "in_range")) {
if (start != NULL && crm_time_compare(start, now) > 0) {
passed = FALSE;
} else if (end != NULL && crm_time_compare(end, now) < 0) {
passed = FALSE;
} else if (safe_str_eq(op, "in_range")) {
passed = TRUE;
} else {
passed = cron_range_satisfied(now, date_spec);
}
} else if (safe_str_eq(op, "gt") && crm_time_compare(start, now) < 0) {
passed = TRUE;
} else if (safe_str_eq(op, "lt") && crm_time_compare(end, now) > 0) {
passed = TRUE;
} else if (safe_str_eq(op, "eq") && crm_time_compare(start, now) == 0) {
passed = TRUE;
} else if (safe_str_eq(op, "neq") && crm_time_compare(start, now) != 0) {
passed = TRUE;
}
crm_time_free(start);
crm_time_free(end);
return passed;
}
int
cib_process_modify(const char *op, int options, const char *section, xmlNode * req, xmlNode * input,
xmlNode * existing_cib, xmlNode ** result_cib, xmlNode ** answer)
{
xmlNode *obj_root = NULL;
crm_trace("Processing \"%s\" event", op);
if (options & cib_xpath) {
return cib_process_xpath(op, options, section, req, input,
existing_cib, result_cib, answer);
}
if (input == NULL) {
crm_err("Cannot perform modification with no data");
return -EINVAL;
}
obj_root = get_object_root(section, *result_cib);
if (obj_root == NULL) {
xmlNode *tmp_section = NULL;
const char *path = get_object_parent(section);
if (path == NULL) {
return -EINVAL;
}
tmp_section = create_xml_node(NULL, section);
cib_process_xpath(CIB_OP_CREATE, 0, path, NULL, tmp_section, NULL, result_cib, answer);
free_xml(tmp_section);
obj_root = get_object_root(section, *result_cib);
}
CRM_CHECK(obj_root != NULL, return -EINVAL);
if (update_xml_child(obj_root, input) == FALSE) {
if (options & cib_can_create) {
add_node_copy(obj_root, input);
} else {
return -ENXIO;
}
}
if(options & cib_mixed_update) {
int max = 0, lpc;
xmlXPathObjectPtr xpathObj = xpath_search(*result_cib, "//@__delete__");
if (xpathObj) {
max = numXpathResults(xpathObj);
crm_log_xml_trace(*result_cib, "Mixed result");
}
for (lpc = 0; lpc < max; lpc++) {
xmlNode *match = getXpathResult(xpathObj, lpc);
crm_debug("Destroying %s", (char *)xmlGetNodePath(match));
free_xml(match);
}
freeXpathObject(xpathObj);
}
return pcmk_ok;
}
int
cib_process_create(const char *op, int options, const char *section, xmlNode * req, xmlNode * input,
xmlNode * existing_cib, xmlNode ** result_cib, xmlNode ** answer)
{
xmlNode *failed = NULL;
int result = pcmk_ok;
xmlNode *update_section = NULL;
crm_trace("Processing \"%s\" event for section=%s", op, crm_str(section));
if (safe_str_eq(XML_CIB_TAG_SECTION_ALL, section)) {
section = NULL;
} else if (safe_str_eq(XML_TAG_CIB, section)) {
section = NULL;
} else if (safe_str_eq(crm_element_name(input), XML_TAG_CIB)) {
section = NULL;
}
CRM_CHECK(strcasecmp(CIB_OP_CREATE, op) == 0, return -EINVAL);
if (input == NULL) {
crm_err("Cannot perform modification with no data");
return -EINVAL;
}
if (section == NULL) {
return cib_process_modify(op, options, section, req, input, existing_cib, result_cib,
answer);
}
failed = create_xml_node(NULL, XML_TAG_FAILED);
update_section = get_object_root(section, *result_cib);
if (safe_str_eq(crm_element_name(input), section)) {
xmlNode *a_child = NULL;
for (a_child = __xml_first_child(input); a_child != NULL; a_child = __xml_next(a_child)) {
result = add_cib_object(update_section, a_child);
if (update_results(failed, a_child, op, result)) {
break;
}
}
} else {
result = add_cib_object(update_section, input);
update_results(failed, input, op, result);
}
if (xml_has_children(failed)) {
CRM_CHECK(result != pcmk_ok, result = -EINVAL);
}
if (result != pcmk_ok) {
crm_log_xml_err(failed, "CIB Update failures");
*answer = failed;
} else {
free_xml(failed);
}
return result;
}
void
attrd_peer_update(crm_node_t *peer, xmlNode *xml, const char *host, bool filter)
{
bool changed = FALSE;
attribute_t *a;
attribute_value_t *v = NULL;
int dampen = 0;
const char *op = crm_element_value(xml, F_ATTRD_TASK);
const char *attr = crm_element_value(xml, F_ATTRD_ATTRIBUTE);
const char *value = crm_element_value(xml, F_ATTRD_VALUE);
const char *dvalue = crm_element_value(xml, F_ATTRD_DAMPEN);
if (attr == NULL) {
crm_warn("Peer update did not specify attribute");
return;
}
a = g_hash_table_lookup(attributes, attr);
if(a == NULL) {
if (op == NULL /* The xml children from an ATTRD_OP_SYNC_RESPONSE have no F_ATTRD_TASK */
|| safe_str_eq(op, ATTRD_OP_UPDATE)
|| safe_str_eq(op, ATTRD_OP_UPDATE_BOTH)) {
a = create_attribute(xml);
} else {
crm_warn("Update error (attribute %s not found)", attr);
return;
}
}
if (op == NULL /* The xml children from an ATTRD_OP_SYNC_RESPONSE have no F_ATTRD_TASK */
|| safe_str_eq(op, ATTRD_OP_UPDATE_BOTH)
|| safe_str_eq(op, ATTRD_OP_UPDATE_DELAY)) {
if (dvalue) {
dampen = crm_get_msec(dvalue);
if (dampen >= 0) {
if (a->timeout_ms != dampen) {
mainloop_timer_stop(a->timer);
mainloop_timer_del(a->timer);
a->timeout_ms = dampen;
if (dampen > 0) {
a->timer = mainloop_timer_add(a->id, a->timeout_ms, FALSE, attribute_timer_cb, a);
crm_info("Update attribute %s with delay %dms (%s)", a->id, dampen, dvalue);
} else {
a->timer = NULL;
crm_info("Update attribute %s with not delay", a->id);
}
//if dampen is changed, attrd writes in a current value immediately.
write_or_elect_attribute(a);
if (safe_str_eq(op, ATTRD_OP_UPDATE_DELAY)) {
return;
}
} else {
if (safe_str_eq(op, ATTRD_OP_UPDATE_DELAY)) {
crm_trace("Unchanged attribute %s with delay %dms (%s).(ATTRD_OP_UPDATE_DELAY)", a->id, dampen, dvalue);
return;
}
}
} else {
crm_warn("Update error (A positive number is necessary for delay parameter. attribute %s : %dms (%s))", a->id, dampen, dvalue);
return;
}
} else {
crm_warn("Update error (delay parameter is necessary for the update of the attribute %s)", a->id);
return;
}
}
if(host == NULL) {
GHashTableIter vIter;
g_hash_table_iter_init(&vIter, a->values);
crm_debug("Setting %s for all hosts to %s", attr, value);
xml_remove_prop(xml, F_ATTRD_HOST_ID);
while (g_hash_table_iter_next(&vIter, (gpointer *) & host, NULL)) {
attrd_peer_update(peer, xml, host, filter);
}
return;
}
v = attrd_lookup_or_create_value(a->values, host, xml);
if(filter
&& safe_str_neq(v->current, value)
&& safe_str_eq(host, attrd_cluster->uname)) {
xmlNode *sync = create_xml_node(NULL, __FUNCTION__);
crm_notice("%s[%s]: local value '%s' takes priority over '%s' from %s",
a->id, host, v->current, value, peer->uname);
crm_xml_add(sync, F_ATTRD_TASK, ATTRD_OP_SYNC_RESPONSE);
v = g_hash_table_lookup(a->values, host);
build_attribute_xml(sync, a->id, a->set, a->uuid, a->timeout_ms, a->user, a->is_private,
v->nodename, v->nodeid, v->current);
crm_xml_add_int(sync, F_ATTRD_WRITER, election_state(writer));
send_attrd_message(peer, sync);
free_xml(sync);
} else if(safe_str_neq(v->current, value)) {
crm_info("Setting %s[%s]: %s -> %s from %s", attr, host, v->current, value, peer->uname);
free(v->current);
if(value) {
v->current = strdup(value);
} else {
v->current = NULL;
}
changed = TRUE;
} else {
crm_trace("Unchanged %s[%s] from %s is %s", attr, host, peer->uname, value);
}
a->changed |= changed;
if(changed) {
if(a->timer) {
crm_trace("Delayed write out (%dms) for %s", a->timeout_ms, a->id);
mainloop_timer_start(a->timer);
} else {
write_or_elect_attribute(a);
}
}
/* this only involves cluster nodes. */
if(v->nodeid == 0 && (v->is_remote == FALSE)) {
if(crm_element_value_int(xml, F_ATTRD_HOST_ID, (int*)&v->nodeid) == 0) {
/* Create the name/id association */
crm_node_t *peer = crm_get_peer(v->nodeid, host);
crm_trace("We know %s's node id now: %s", peer->uname, peer->uuid);
if(election_state(writer) == election_won) {
write_attributes(FALSE, TRUE);
return;
}
}
}
}
void
write_attribute(attribute_t *a)
{
int private_updates = 0, cib_updates = 0;
xmlNode *xml_top = NULL;
attribute_value_t *v = NULL;
GHashTableIter iter;
enum cib_call_options flags = cib_quorum_override;
if (a == NULL) {
return;
}
/* If this attribute will be written to the CIB ... */
if (!a->is_private) {
/* Defer the write if now's not a good time */
if (the_cib == NULL) {
crm_info("Write out of '%s' delayed: cib not connected", a->id);
return;
} else if (a->update && (a->update < last_cib_op_done)) {
crm_info("Write out of '%s' continuing: update %d considered lost", a->id, a->update);
} else if (a->update) {
crm_info("Write out of '%s' delayed: update %d in progress", a->id, a->update);
return;
} else if (mainloop_timer_running(a->timer)) {
crm_info("Write out of '%s' delayed: timer is running", a->id);
return;
}
/* Initialize the status update XML */
xml_top = create_xml_node(NULL, XML_CIB_TAG_STATUS);
}
/* Attribute will be written shortly, so clear changed flag */
a->changed = FALSE;
/* We will check all peers' uuids shortly, so initialize this to false */
a->unknown_peer_uuids = FALSE;
/* Iterate over each peer value of this attribute */
g_hash_table_iter_init(&iter, a->values);
while (g_hash_table_iter_next(&iter, NULL, (gpointer *) & v)) {
crm_node_t *peer = crm_get_peer_full(v->nodeid, v->nodename, CRM_GET_PEER_ANY);
/* If the value's peer info does not correspond to a peer, ignore it */
if (peer == NULL) {
crm_notice("Update error (peer not found): %s[%s]=%s failed (host=%p)",
v->nodename, a->id, v->current, peer);
continue;
}
/* If we're just learning the peer's node id, remember it */
if (peer->id && (v->nodeid == 0)) {
crm_trace("Updating value's nodeid");
v->nodeid = peer->id;
}
/* If this is a private attribute, no update needs to be sent */
if (a->is_private) {
private_updates++;
continue;
}
/* If the peer is found, but its uuid is unknown, defer write */
if (peer->uuid == NULL) {
a->unknown_peer_uuids = TRUE;
crm_notice("Update error (unknown peer uuid, retry will be attempted once uuid is discovered): %s[%s]=%s failed (host=%p)",
v->nodename, a->id, v->current, peer);
continue;
}
/* Add this value to status update XML */
crm_debug("Update: %s[%s]=%s (%s %u %u %s)", v->nodename, a->id,
v->current, peer->uuid, peer->id, v->nodeid, peer->uname);
build_update_element(xml_top, a, peer->uuid, v->current);
cib_updates++;
free(v->requested);
v->requested = NULL;
if (v->current) {
v->requested = strdup(v->current);
} else {
/* Older attrd versions don't know about the cib_mixed_update
* flag so make sure it goes to the local cib which does
*/
flags |= cib_mixed_update|cib_scope_local;
}
}
if (private_updates) {
crm_info("Processed %d private change%s for %s, id=%s, set=%s",
private_updates, ((private_updates == 1)? "" : "s"),
a->id, (a->uuid? a->uuid : "<n/a>"), a->set);
}
if (cib_updates) {
crm_log_xml_trace(xml_top, __FUNCTION__);
a->update = cib_internal_op(the_cib, CIB_OP_MODIFY, NULL, XML_CIB_TAG_STATUS, xml_top, NULL,
flags, a->user);
crm_info("Sent update %d with %d changes for %s, id=%s, set=%s",
a->update, cib_updates, a->id, (a->uuid? a->uuid : "<n/a>"), a->set);
the_cib->cmds->register_callback_full(the_cib, a->update, 120, FALSE,
strdup(a->id),
"attrd_cib_callback",
attrd_cib_callback, free);
}
free_xml(xml_top);
}
/*!
* \internal
* \brief Respond to a client update request
*
* \param[in] xml Root of request XML
*
* \return void
*/
void
attrd_client_update(xmlNode *xml)
{
attribute_t *a = NULL;
attribute_value_t *v = NULL;
char *key = crm_element_value_copy(xml, F_ATTRD_KEY);
char *set = crm_element_value_copy(xml, F_ATTRD_SET);
char *host = crm_element_value_copy(xml, F_ATTRD_HOST);
const char *attr = crm_element_value(xml, F_ATTRD_ATTRIBUTE);
const char *value = crm_element_value(xml, F_ATTRD_VALUE);
const char *regex = crm_element_value(xml, F_ATTRD_REGEX);
/* If a regex was specified, broadcast a message for each match */
if ((attr == NULL) && regex) {
GHashTableIter aIter;
regex_t *r_patt = calloc(1, sizeof(regex_t));
crm_debug("Setting %s to %s", regex, value);
if (regcomp(r_patt, regex, REG_EXTENDED)) {
crm_err("Bad regex '%s' for update", regex);
} else {
g_hash_table_iter_init(&aIter, attributes);
while (g_hash_table_iter_next(&aIter, (gpointer *) & attr, NULL)) {
int status = regexec(r_patt, attr, 0, NULL, 0);
if (status == 0) {
crm_trace("Matched %s with %s", attr, regex);
crm_xml_add(xml, F_ATTRD_ATTRIBUTE, attr);
send_attrd_message(NULL, xml);
}
}
}
free(key);
free(set);
free(host);
regfree(r_patt);
free(r_patt);
return;
} else if (attr == NULL) {
crm_err("Update request did not specify attribute or regular expression");
free(key);
free(set);
free(host);
return;
}
if (host == NULL) {
crm_trace("Inferring host");
host = strdup(attrd_cluster->uname);
crm_xml_add(xml, F_ATTRD_HOST, host);
crm_xml_add_int(xml, F_ATTRD_HOST_ID, attrd_cluster->nodeid);
}
a = g_hash_table_lookup(attributes, attr);
/* If value was specified using ++ or += notation, expand to real value */
if (value) {
int offset = 1;
int int_value = 0;
static const int plus_plus_len = 5;
if ((strlen(value) >= (plus_plus_len + 2)) && (value[plus_plus_len] == '+')
&& ((value[plus_plus_len + 1] == '+') || (value[plus_plus_len + 1] == '='))) {
if (a) {
v = g_hash_table_lookup(a->values, host);
}
if (v) {
int_value = char2score(v->current);
}
if (value[plus_plus_len + 1] != '+') {
const char *offset_s = value + (plus_plus_len + 2);
offset = char2score(offset_s);
}
int_value += offset;
if (int_value > INFINITY) {
int_value = INFINITY;
}
crm_info("Expanded %s=%s to %d", attr, value, int_value);
crm_xml_add_int(xml, F_ATTRD_VALUE, int_value);
/* Replacing the value frees the previous memory, so re-query it */
value = crm_element_value(xml, F_ATTRD_VALUE);
}
}
if ((peer_writer == NULL) && (election_state(writer) != election_in_progress)) {
crm_info("Starting an election to determine the writer");
election_vote(writer);
}
crm_debug("Broadcasting %s[%s] = %s%s", attr, host, value,
((election_state(writer) == election_won)? " (writer)" : ""));
free(key);
free(set);
free(host);
send_attrd_message(NULL, xml); /* ends up at attrd_peer_message() */
}
void
attrd_peer_message(crm_node_t *peer, xmlNode *xml)
{
int peer_state = 0;
const char *v = crm_element_value(xml, F_ATTRD_VERSION);
const char *op = crm_element_value(xml, F_ATTRD_TASK);
const char *election_op = crm_element_value(xml, F_CRM_TASK);
const char *host = crm_element_value(xml, F_ATTRD_HOST);
if(election_op) {
enum election_result rc = 0;
crm_xml_add(xml, F_CRM_HOST_FROM, peer->uname);
rc = election_count_vote(writer, xml, TRUE);
switch(rc) {
case election_start:
free(peer_writer);
peer_writer = NULL;
election_vote(writer);
break;
case election_lost:
free(peer_writer);
peer_writer = strdup(peer->uname);
break;
default:
election_check(writer);
break;
}
return;
} else if(v == NULL) {
/* From the non-atomic version */
if (safe_str_eq(op, ATTRD_OP_UPDATE)) {
const char *name = crm_element_value(xml, F_ATTRD_ATTRIBUTE);
crm_trace("Compatibility update of %s from %s", name, peer->uname);
attrd_peer_update(peer, xml, host, FALSE);
} else if (safe_str_eq(op, ATTRD_OP_FLUSH)) {
const char *name = crm_element_value(xml, F_ATTRD_ATTRIBUTE);
attribute_t *a = g_hash_table_lookup(attributes, name);
if(a) {
crm_trace("Compatibility write-out of %s for %s from %s", a->id, op, peer->uname);
write_or_elect_attribute(a);
}
} else if (safe_str_eq(op, ATTRD_OP_REFRESH)) {
GHashTableIter aIter;
attribute_t *a = NULL;
g_hash_table_iter_init(&aIter, attributes);
while (g_hash_table_iter_next(&aIter, NULL, (gpointer *) & a)) {
crm_trace("Compatibility write-out of %s for %s from %s", a->id, op, peer->uname);
write_or_elect_attribute(a);
}
}
}
crm_element_value_int(xml, F_ATTRD_WRITER, &peer_state);
if(election_state(writer) == election_won
&& peer_state == election_won
&& safe_str_neq(peer->uname, attrd_cluster->uname)) {
crm_notice("Detected another attribute writer: %s", peer->uname);
election_vote(writer);
} else if(peer_state == election_won) {
if(peer_writer == NULL) {
peer_writer = strdup(peer->uname);
crm_notice("Recorded attribute writer: %s", peer->uname);
} else if(safe_str_neq(peer->uname, peer_writer)) {
crm_notice("Recorded new attribute writer: %s (was %s)", peer->uname, peer_writer);
free(peer_writer);
peer_writer = strdup(peer->uname);
}
}
if (safe_str_eq(op, ATTRD_OP_UPDATE) || safe_str_eq(op, ATTRD_OP_UPDATE_BOTH) || safe_str_eq(op, ATTRD_OP_UPDATE_DELAY)) {
attrd_peer_update(peer, xml, host, FALSE);
} else if (safe_str_eq(op, ATTRD_OP_SYNC)) {
attrd_peer_sync(peer, xml);
} else if (safe_str_eq(op, ATTRD_OP_PEER_REMOVE)) {
attrd_peer_remove(host, TRUE, peer->uname);
} else if (safe_str_eq(op, ATTRD_OP_SYNC_RESPONSE)
&& safe_str_neq(peer->uname, attrd_cluster->uname)) {
xmlNode *child = NULL;
crm_info("Processing %s from %s", op, peer->uname);
for (child = __xml_first_child(xml); child != NULL; child = __xml_next(child)) {
host = crm_element_value(child, F_ATTRD_HOST);
attrd_peer_update(peer, child, host, TRUE);
}
}
}
int
main(int argc, char **argv)
{
int rc;
int flag;
int argerr = 0;
int option_index = 0;
gboolean shutdown = FALSE;
uid_t pcmk_uid = 0;
gid_t pcmk_gid = 0;
struct rlimit cores;
crm_ipc_t *old_instance = NULL;
qb_ipcs_service_t *ipcs = NULL;
const char *facility = daemon_option("logfacility");
static crm_cluster_t cluster;
crm_log_preinit(NULL, argc, argv);
crm_set_options(NULL, "mode [options]", long_options, "Start/Stop Pacemaker\n");
mainloop_add_signal(SIGHUP, pcmk_ignore);
mainloop_add_signal(SIGQUIT, pcmk_sigquit);
while (1) {
flag = crm_get_option(argc, argv, &option_index);
if (flag == -1)
break;
switch (flag) {
case 'V':
crm_bump_log_level(argc, argv);
break;
case 'f':
/* Legacy */
break;
case 'p':
pid_file = optarg;
break;
case '$':
case '?':
crm_help(flag, EX_OK);
break;
case 'S':
shutdown = TRUE;
break;
case 'F':
printf("Pacemaker %s (Build: %s)\n Supporting v%s: %s\n", PACEMAKER_VERSION, BUILD_VERSION,
CRM_FEATURE_SET, CRM_FEATURES);
crm_exit(pcmk_ok);
default:
printf("Argument code 0%o (%c) is not (?yet?) supported\n", flag, flag);
++argerr;
break;
}
}
if (optind < argc) {
printf("non-option ARGV-elements: ");
while (optind < argc)
printf("%s ", argv[optind++]);
printf("\n");
}
if (argerr) {
crm_help('?', EX_USAGE);
}
setenv("LC_ALL", "C", 1);
setenv("HA_LOGD", "no", 1);
set_daemon_option("mcp", "true");
set_daemon_option("use_logd", "off");
crm_log_init(NULL, LOG_INFO, TRUE, FALSE, argc, argv, FALSE);
/* Restore the original facility so that mcp_read_config() does the right thing */
set_daemon_option("logfacility", facility);
crm_debug("Checking for old instances of %s", CRM_SYSTEM_MCP);
old_instance = crm_ipc_new(CRM_SYSTEM_MCP, 0);
crm_ipc_connect(old_instance);
if (shutdown) {
crm_debug("Terminating previous instance");
while (crm_ipc_connected(old_instance)) {
xmlNode *cmd =
create_request(CRM_OP_QUIT, NULL, NULL, CRM_SYSTEM_MCP, CRM_SYSTEM_MCP, NULL);
crm_debug(".");
crm_ipc_send(old_instance, cmd, 0, 0, NULL);
free_xml(cmd);
sleep(2);
}
crm_ipc_close(old_instance);
crm_ipc_destroy(old_instance);
crm_exit(pcmk_ok);
} else if (crm_ipc_connected(old_instance)) {
crm_ipc_close(old_instance);
crm_ipc_destroy(old_instance);
crm_err("Pacemaker is already active, aborting startup");
crm_exit(DAEMON_RESPAWN_STOP);
}
crm_ipc_close(old_instance);
crm_ipc_destroy(old_instance);
if (mcp_read_config() == FALSE) {
crm_notice("Could not obtain corosync config data, exiting");
crm_exit(ENODATA);
}
crm_notice("Starting Pacemaker %s (Build: %s): %s", PACEMAKER_VERSION, BUILD_VERSION, CRM_FEATURES);
mainloop = g_main_new(FALSE);
sysrq_init();
rc = getrlimit(RLIMIT_CORE, &cores);
if (rc < 0) {
crm_perror(LOG_ERR, "Cannot determine current maximum core size.");
} else {
if (cores.rlim_max == 0 && geteuid() == 0) {
cores.rlim_max = RLIM_INFINITY;
} else {
crm_info("Maximum core file size is: %lu", (unsigned long)cores.rlim_max);
}
cores.rlim_cur = cores.rlim_max;
rc = setrlimit(RLIMIT_CORE, &cores);
if (rc < 0) {
crm_perror(LOG_ERR,
"Core file generation will remain disabled."
" Core files are an important diagnositic tool,"
" please consider enabling them by default.");
}
#if 0
/* system() is not thread-safe, can't call from here
* Actually, its a pretty hacky way to try and achieve this anyway
*/
if (system("echo 1 > /proc/sys/kernel/core_uses_pid") != 0) {
crm_perror(LOG_ERR, "Could not enable /proc/sys/kernel/core_uses_pid");
}
#endif
}
rc = pcmk_ok;
if (crm_user_lookup(CRM_DAEMON_USER, &pcmk_uid, &pcmk_gid) < 0) {
crm_err("Cluster user %s does not exist, aborting Pacemaker startup", CRM_DAEMON_USER);
crm_exit(ENOKEY);
}
mkdir(CRM_STATE_DIR, 0750);
mcp_chown(CRM_STATE_DIR, pcmk_uid, pcmk_gid);
/* Used to store core files in */
crm_build_path(CRM_CORE_DIR, 0775);
mcp_chown(CRM_CORE_DIR, pcmk_uid, pcmk_gid);
/* Used to store blackbox dumps in */
crm_build_path(CRM_BLACKBOX_DIR, 0755);
mcp_chown(CRM_BLACKBOX_DIR, pcmk_uid, pcmk_gid);
/* Used to store policy engine inputs in */
crm_build_path(PE_STATE_DIR, 0755);
mcp_chown(PE_STATE_DIR, pcmk_uid, pcmk_gid);
/* Used to store the cluster configuration */
crm_build_path(CRM_CONFIG_DIR, 0755);
mcp_chown(CRM_CONFIG_DIR, pcmk_uid, pcmk_gid);
/* Resource agent paths are constructed by the lrmd */
ipcs = mainloop_add_ipc_server(CRM_SYSTEM_MCP, QB_IPC_NATIVE, &mcp_ipc_callbacks);
if (ipcs == NULL) {
crm_err("Couldn't start IPC server");
crm_exit(EIO);
}
/* Allows us to block shutdown */
if (cluster_connect_cfg(&local_nodeid) == FALSE) {
crm_err("Couldn't connect to Corosync's CFG service");
crm_exit(ENOPROTOOPT);
}
if(pcmk_locate_sbd() > 0) {
setenv("PCMK_watchdog", "true", 1);
} else {
setenv("PCMK_watchdog", "false", 1);
}
find_and_track_existing_processes();
cluster.destroy = mcp_cpg_destroy;
cluster.cpg.cpg_deliver_fn = mcp_cpg_deliver;
cluster.cpg.cpg_confchg_fn = mcp_cpg_membership;
crm_set_autoreap(FALSE);
if(cluster_connect_cpg(&cluster) == FALSE) {
crm_err("Couldn't connect to Corosync's CPG service");
rc = -ENOPROTOOPT;
}
if (rc == pcmk_ok && is_corosync_cluster()) {
/* Keep the membership list up-to-date for crm_node to query */
if(cluster_connect_quorum(mcp_quorum_callback, mcp_quorum_destroy) == FALSE) {
rc = -ENOTCONN;
}
}
#if SUPPORT_CMAN
if (rc == pcmk_ok && is_cman_cluster()) {
init_cman_connection(mcp_cman_dispatch, mcp_cman_destroy);
}
#endif
if(rc == pcmk_ok) {
local_name = get_local_node_name();
update_node_processes(local_nodeid, local_name, get_process_list());
mainloop_add_signal(SIGTERM, pcmk_shutdown);
mainloop_add_signal(SIGINT, pcmk_shutdown);
init_children_processes();
crm_info("Starting mainloop");
g_main_run(mainloop);
}
if (ipcs) {
crm_trace("Closing IPC server");
mainloop_del_ipc_server(ipcs);
ipcs = NULL;
}
g_main_destroy(mainloop);
cluster_disconnect_cpg(&cluster);
cluster_disconnect_cfg();
crm_info("Exiting %s", crm_system_name);
return crm_exit(rc);
}
static void
pcmk_ipc_destroy(qb_ipcs_connection_t * c)
{
crm_trace("Connection %p", c);
pcmk_ipc_closed(c);
}
static void
pcmk_ipc_created(qb_ipcs_connection_t * c)
{
crm_trace("Connection %p", c);
}
/* aka. this is notification that we have (or have not) been accepted */
void
do_cl_join_finalize_respond(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)
{
xmlNode *tmp1 = NULL;
gboolean was_nack = TRUE;
static gboolean first_join = TRUE;
ha_msg_input_t *input = fsa_typed_data(fsa_dt_ha_msg);
const char *start_state = daemon_option("node_start_state");
int join_id = -1;
const char *op = crm_element_value(input->msg, F_CRM_TASK);
const char *ack_nack = crm_element_value(input->msg, CRM_OP_JOIN_ACKNAK);
const char *welcome_from = crm_element_value(input->msg, F_CRM_HOST_FROM);
if (safe_str_neq(op, CRM_OP_JOIN_ACKNAK)) {
crm_trace("Ignoring op=%s message", op);
return;
}
/* calculate if it was an ack or a nack */
if (crm_is_true(ack_nack)) {
was_nack = FALSE;
}
crm_element_value_int(input->msg, F_CRM_JOIN_ID, &join_id);
if (was_nack) {
crm_err("Shutting down because cluster join with leader %s failed "
CRM_XS" join-%d NACK'd", welcome_from, join_id);
register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
return;
}
if (AM_I_DC == FALSE && safe_str_eq(welcome_from, fsa_our_uname)) {
crm_warn("Discarding our own welcome - we're no longer the DC");
return;
}
if (update_dc(input->msg) == FALSE) {
crm_warn("Discarding %s from node %s (expected from %s)",
op, welcome_from, fsa_our_dc);
return;
}
update_dc_expected(input->msg);
/* send our status section to the DC */
tmp1 = do_lrm_query(TRUE, fsa_our_uname);
if (tmp1 != NULL) {
xmlNode *reply = create_request(CRM_OP_JOIN_CONFIRM, tmp1, fsa_our_dc,
CRM_SYSTEM_DC, CRM_SYSTEM_CRMD, NULL);
crm_xml_add_int(reply, F_CRM_JOIN_ID, join_id);
crm_debug("Confirming join-%d: sending local operation history to %s",
join_id, fsa_our_dc);
/*
* If this is the node's first join since the crmd started on it, clear
* any previous transient node attributes, to handle the case where
* the node restarted so quickly that the cluster layer didn't notice.
*
* Do not remove the resources though, they'll be cleaned up in
* do_dc_join_ack(). Removing them here creates a race condition if the
* crmd is being recovered. Instead of a list of active resources from
* the lrmd, we may end up with a blank status section. If we are _NOT_
* lucky, we will probe for the "wrong" instance of anonymous clones and
* end up with multiple active instances on the machine.
*/
if (first_join && is_not_set(fsa_input_register, R_SHUTDOWN)) {
first_join = FALSE;
erase_status_tag(fsa_our_uname, XML_TAG_TRANSIENT_NODEATTRS, 0);
update_attrd(fsa_our_uname, "terminate", NULL, NULL, FALSE);
update_attrd(fsa_our_uname, XML_CIB_ATTR_SHUTDOWN, "0", NULL, FALSE);
if (start_state) {
set_join_state(start_state);
}
}
send_cluster_message(crm_get_peer(0, fsa_our_dc), crm_msg_crmd, reply, TRUE);
free_xml(reply);
if (AM_I_DC == FALSE) {
register_fsa_input_adv(cause, I_NOT_DC, NULL, A_NOTHING, TRUE, __FUNCTION__);
update_attrd(NULL, NULL, NULL, NULL, FALSE);
}
free_xml(tmp1);
} else {
crm_err("Could not confirm join-%d with %s: Local operation history failed",
join_id, fsa_our_dc);
register_fsa_error(C_FSA_INTERNAL, I_FAIL, NULL);
}
}
void
peer_update_callback(enum crm_status_type type, crm_node_t * node, const void *data)
{
uint32_t old = 0;
uint32_t changed = 0;
bool appeared = FALSE;
const char *status = NULL;
set_bit(fsa_input_register, R_PEER_DATA);
if (node->uname == NULL) {
return;
}
switch (type) {
case crm_status_uname:
/* If we've never seen the node, then it also wont be in the status section */
crm_info("%s is now %s", node->uname, node->state);
return;
case crm_status_rstate:
crm_info("Remote node %s is now %s (was %s)", node->uname, node->state, (const char *)data);
case crm_status_nstate:
crm_info("%s is now %s (was %s)", node->uname, node->state, (const char *)data);
if (safe_str_eq(data, node->state)) {
/* State did not change */
return;
} else if(safe_str_eq(CRM_NODE_MEMBER, node->state)) {
appeared = TRUE;
}
break;
case crm_status_processes:
if (data) {
old = *(const uint32_t *)data;
changed = node->processes ^ old;
}
/* crmd_proc_update(node, proc_flags); */
status = (node->processes & proc_flags) ? ONLINESTATUS : OFFLINESTATUS;
crm_info("Client %s/%s now has status [%s] (DC=%s)",
node->uname, peer2text(proc_flags), status,
AM_I_DC ? "true" : crm_str(fsa_our_dc));
if ((changed & proc_flags) == 0) {
/* Peer process did not change */
crm_trace("No change %6x %6x %6x", old, node->processes, proc_flags);
return;
} else if (is_set(fsa_input_register, R_CIB_CONNECTED) == FALSE) {
crm_trace("Not connected");
return;
} else if (fsa_state == S_STOPPING) {
crm_trace("Stopping");
return;
}
appeared = (node->processes & proc_flags) != 0;
if (safe_str_eq(node->uname, fsa_our_uname) && (node->processes & proc_flags) == 0) {
/* Did we get evicted? */
crm_notice("Our peer connection failed");
register_fsa_input(C_CRMD_STATUS_CALLBACK, I_ERROR, NULL);
} else if (safe_str_eq(node->uname, fsa_our_dc) && crm_is_peer_active(node) == FALSE) {
/* Did the DC leave us? */
crm_notice("Our peer on the DC (%s) is dead", fsa_our_dc);
register_fsa_input(C_CRMD_STATUS_CALLBACK, I_ELECTION, NULL);
}
break;
}
if (AM_I_DC) {
xmlNode *update = NULL;
gboolean alive = crm_is_peer_active(node);
crm_action_t *down = match_down_event(0, node->uuid, NULL, appeared);
crm_trace("Alive=%d, appear=%d, down=%p", alive, appeared, down);
if (alive && type == crm_status_processes) {
register_fsa_input_before(C_FSA_INTERNAL, I_NODE_JOIN, NULL);
}
if (down) {
const char *task = crm_element_value(down->xml, XML_LRM_ATTR_TASK);
if (alive && safe_str_eq(task, CRM_OP_FENCE)) {
crm_info("Node return implies stonith of %s (action %d) completed", node->uname,
down->id);
erase_status_tag(node->uname, XML_CIB_TAG_LRM, cib_scope_local);
erase_status_tag(node->uname, XML_TAG_TRANSIENT_NODEATTRS, cib_scope_local);
/* down->confirmed = TRUE; Only stonith-ng returning should imply completion */
down->sent_update = TRUE; /* Prevent tengine_stonith_callback() from calling send_stonith_update() */
} else if (safe_str_eq(task, CRM_OP_FENCE)) {
crm_trace("Waiting for stonithd to report the fencing of %s is complete", node->uname); /* via tengine_stonith_callback() */
} else if (alive == FALSE) {
crm_notice("%s of %s (op %d) is complete", task, node->uname, down->id);
/* down->confirmed = TRUE; Only stonith-ng returning should imply completion */
stop_te_timer(down->timer);
crm_update_peer_join(__FUNCTION__, node, crm_join_none);
crm_update_peer_expected(__FUNCTION__, node, CRMD_JOINSTATE_DOWN);
check_join_state(fsa_state, __FUNCTION__);
update_graph(transition_graph, down);
trigger_graph();
} else {
crm_trace("Other %p", down);
}
} else if (appeared == FALSE) {
crm_notice("Stonith/shutdown of %s not matched", node->uname);
crm_update_peer_join(__FUNCTION__, node, crm_join_none);
check_join_state(fsa_state, __FUNCTION__);
abort_transition(INFINITY, tg_restart, "Node failure", NULL);
fail_incompletable_actions(transition_graph, node->uuid);
} else {
crm_trace("Other %p", down);
}
update = do_update_node_cib(node, node_update_peer, NULL, __FUNCTION__);
fsa_cib_anon_update(XML_CIB_TAG_STATUS, update,
cib_scope_local | cib_quorum_override | cib_can_create);
free_xml(update);
}
trigger_fsa(fsa_source);
}
int
cib_process_replace(const char *op, int options, const char *section, xmlNode * req,
xmlNode * input, xmlNode * existing_cib, xmlNode ** result_cib,
xmlNode ** answer)
{
const char *tag = NULL;
int result = pcmk_ok;
crm_trace("Processing \"%s\" event for section=%s", op, crm_str(section));
if (options & cib_xpath) {
return cib_process_xpath(op, options, section, req, input,
existing_cib, result_cib, answer);
}
*answer = NULL;
if (input == NULL) {
return -EINVAL;
}
tag = crm_element_name(input);
if (safe_str_eq(XML_CIB_TAG_SECTION_ALL, section)) {
section = NULL;
} else if (safe_str_eq(tag, section)) {
section = NULL;
}
if (safe_str_eq(tag, XML_TAG_CIB)) {
int updates = 0;
int epoch = 0;
int admin_epoch = 0;
int replace_updates = 0;
int replace_epoch = 0;
int replace_admin_epoch = 0;
const char *reason = NULL;
const char *peer = crm_element_value(req, F_ORIG);
const char *digest = crm_element_value(req, XML_ATTR_DIGEST);
if (digest) {
const char *version = crm_element_value(req, XML_ATTR_CRM_VERSION);
char *digest_verify = calculate_xml_versioned_digest(input, FALSE, TRUE,
version ? version :
CRM_FEATURE_SET);
if (safe_str_neq(digest_verify, digest)) {
crm_err("Digest mis-match on replace from %s: %s vs. %s (expected)", peer,
digest_verify, digest);
reason = "digest mismatch";
} else {
crm_info("Digest matched on replace from %s: %s", peer, digest);
}
free(digest_verify);
} else {
crm_trace("No digest to verify");
}
cib_version_details(existing_cib, &admin_epoch, &epoch, &updates);
cib_version_details(input, &replace_admin_epoch, &replace_epoch, &replace_updates);
if (replace_admin_epoch < admin_epoch) {
reason = XML_ATTR_GENERATION_ADMIN;
} else if (replace_admin_epoch > admin_epoch) {
/* no more checks */
} else if (replace_epoch < epoch) {
reason = XML_ATTR_GENERATION;
} else if (replace_epoch > epoch) {
/* no more checks */
} else if (replace_updates < updates) {
reason = XML_ATTR_NUMUPDATES;
}
if (reason != NULL) {
crm_info("Replacement %d.%d.%d from %s not applied to %d.%d.%d:"
" current %s is greater than the replacement",
replace_admin_epoch, replace_epoch,
replace_updates, peer, admin_epoch, epoch, updates, reason);
result = -pcmk_err_old_data;
} else {
crm_info("Replaced %d.%d.%d with %d.%d.%d from %s",
admin_epoch, epoch, updates,
replace_admin_epoch, replace_epoch, replace_updates, peer);
}
free_xml(*result_cib);
*result_cib = copy_xml(input);
} else {
xmlNode *obj_root = NULL;
gboolean ok = TRUE;
obj_root = get_object_root(section, *result_cib);
ok = replace_xml_child(NULL, obj_root, input, FALSE);
if (ok == FALSE) {
crm_trace("No matching object to replace");
result = -ENXIO;
}
}
return result;
}
int32_t
cib_common_callback(qb_ipcs_connection_t *c, void *data, size_t size, gboolean privileged)
{
int call_options = 0;
const char *op = NULL;
const char *call = NULL;
xmlNode *op_request = crm_ipcs_recv(c, data, size);
cib_client_t *cib_client = qb_ipcs_context_get(c);
if(op_request) {
op = crm_element_value(op_request, F_CIB_OPERATION);
call = crm_element_value(op_request, F_CIB_CALLID);
crm_element_value_int(op_request, F_CIB_CALLOPTS, &call_options);
}
crm_trace("Inbound: %.200s", data);
if (op_request == NULL || cib_client == NULL) {
xmlNode *ack = create_xml_node(NULL, "nack");
crm_trace("Sending nack to %p", cib_client);
crm_xml_add(ack, F_CIB_CALLID, call);
crm_xml_add(ack, F_CIB_OPERATION, op);
crm_xml_add(ack, XML_ATTR_ORIGIN, __FUNCTION__);
crm_ipcs_send(c, ack, FALSE);
free_xml(ack);
return 0;
} else if((call_options & cib_sync_call) == 0) {
xmlNode *ack = create_xml_node(NULL, "ack");
crm_trace("Sending a-sync ack to %p", cib_client);
crm_xml_add(ack, F_CIB_CALLID, call);
crm_xml_add(ack, F_CIB_OPERATION, op);
crm_xml_add(ack, XML_ATTR_ORIGIN, __FUNCTION__);
crm_ipcs_send(c, ack, FALSE);
free_xml(ack);
}
if (cib_client->name == NULL) {
const char *value = crm_element_value(op_request, F_CIB_CLIENTNAME);
if (value == NULL) {
cib_client->name = crm_itoa(crm_ipcs_client_pid(c));
} else {
cib_client->name = strdup(value);
}
}
if (cib_client->callback_id == NULL) {
const char *value = crm_element_value(op_request, F_CIB_CALLBACK_TOKEN);
if (value != NULL) {
cib_client->callback_id = strdup(value);
} else {
cib_client->callback_id = strdup(cib_client->id);
}
}
crm_xml_add(op_request, F_CIB_CLIENTID, cib_client->id);
crm_xml_add(op_request, F_CIB_CLIENTNAME, cib_client->name);
#if ENABLE_ACL
determine_request_user(cib_client->user, op_request, F_CIB_USER);
#endif
crm_log_xml_trace(op_request, "Client[inbound]");
cib_common_callback_worker(op_request, cib_client, privileged);
free_xml(op_request);
return 0;
}
static int
update_cib_object(xmlNode * parent, xmlNode * update)
{
int result = pcmk_ok;
xmlNode *target = NULL;
xmlNode *a_child = NULL;
const char *replace = NULL;
const char *object_id = NULL;
const char *object_name = NULL;
CRM_CHECK(update != NULL, return -EINVAL);
CRM_CHECK(parent != NULL, return -EINVAL);
object_name = crm_element_name(update);
CRM_CHECK(object_name != NULL, return -EINVAL);
object_id = ID(update);
crm_trace("Processing: <%s id=%s>", crm_str(object_name), crm_str(object_id));
if (object_id == NULL) {
/* placeholder object */
target = find_xml_node(parent, object_name, FALSE);
} else {
target = find_entity(parent, object_name, object_id);
}
if (target == NULL) {
target = create_xml_node(parent, object_name);
}
crm_trace("Found node <%s id=%s> to update", crm_str(object_name), crm_str(object_id));
replace = crm_element_value(update, XML_CIB_ATTR_REPLACE);
if (replace != NULL) {
xmlNode *remove = NULL;
int last = 0, lpc = 0, len = 0;
len = strlen(replace);
while (lpc <= len) {
if (replace[lpc] == ',' || replace[lpc] == 0) {
char *replace_item = NULL;
if (last == lpc) {
/* nothing to do */
last = lpc + 1;
goto incr;
}
replace_item = calloc(1, lpc - last + 1);
memcpy(replace_item, replace + last, lpc - last);
remove = find_xml_node(target, replace_item, FALSE);
if (remove != NULL) {
crm_trace("Replacing node <%s> in <%s>",
replace_item, crm_element_name(target));
free_xml(remove);
remove = NULL;
}
free(replace_item);
last = lpc + 1;
}
incr:
lpc++;
}
xml_remove_prop(update, XML_CIB_ATTR_REPLACE);
xml_remove_prop(target, XML_CIB_ATTR_REPLACE);
}
copy_in_properties(target, update);
crm_trace("Processing children of <%s id=%s>", crm_str(object_name), crm_str(object_id));
for (a_child = __xml_first_child(update); a_child != NULL; a_child = __xml_next(a_child)) {
int tmp_result = 0;
crm_trace("Updating child <%s id=%s>", crm_element_name(a_child), ID(a_child));
tmp_result = update_cib_object(target, a_child);
/* only the first error is likely to be interesting */
if (tmp_result != pcmk_ok) {
crm_err("Error updating child <%s id=%s>", crm_element_name(a_child), ID(a_child));
if (result == pcmk_ok) {
result = tmp_result;
}
}
}
crm_trace("Finished with <%s id=%s>", crm_str(object_name), crm_str(object_id));
return result;
}
static gboolean
parse_peer_options(int call_type, xmlNode * request,
gboolean * local_notify, gboolean * needs_reply, gboolean * process,
gboolean * needs_forward)
{
const char *op = NULL;
const char *host = NULL;
const char *delegated = NULL;
const char *originator = crm_element_value(request, F_ORIG);
const char *reply_to = crm_element_value(request, F_CIB_ISREPLY);
const char *update = crm_element_value(request, F_CIB_GLOBAL_UPDATE);
gboolean is_reply = safe_str_eq(reply_to, cib_our_uname);
if (crm_is_true(update)) {
*needs_reply = FALSE;
if (is_reply) {
*local_notify = TRUE;
crm_trace("Processing global/peer update from %s"
" that originated from us", originator);
} else {
crm_trace("Processing global/peer update from %s", originator);
}
return TRUE;
}
host = crm_element_value(request, F_CIB_HOST);
if (host != NULL && safe_str_eq(host, cib_our_uname)) {
crm_trace("Processing request sent to us from %s", originator);
return TRUE;
} else if (host == NULL && cib_is_master == TRUE) {
crm_trace("Processing request sent to master instance from %s", originator);
return TRUE;
}
op = crm_element_value(request, F_CIB_OPERATION);
if(safe_str_eq(op, "cib_shutdown_req")) {
/* Always process these */
*local_notify = FALSE;
if(reply_to == NULL || is_reply) {
*process = TRUE;
}
if(is_reply) {
*needs_reply = FALSE;
}
return *process;
}
if (is_reply) {
crm_trace("Forward reply sent from %s to local clients", originator);
*process = FALSE;
*needs_reply = FALSE;
*local_notify = TRUE;
return TRUE;
}
delegated = crm_element_value(request, F_CIB_DELEGATED);
if (delegated != NULL) {
crm_trace("Ignoring msg for master instance");
} else if (host != NULL) {
/* this is for a specific instance and we're not it */
crm_trace("Ignoring msg for instance on %s", crm_str(host));
} else if (reply_to == NULL && cib_is_master == FALSE) {
/* this is for the master instance and we're not it */
crm_trace("Ignoring reply to %s", crm_str(reply_to));
} else if (safe_str_eq(op, "cib_shutdown_req")) {
if (reply_to != NULL) {
crm_debug("Processing %s from %s", op, host);
*needs_reply = FALSE;
} else {
crm_debug("Processing %s reply from %s", op, host);
}
return TRUE;
} else {
crm_err("Nothing for us to do?");
crm_log_xml_err(request, "Peer[inbound]");
}
return FALSE;
}
int
cib_process_xpath(const char *op, int options, const char *section, xmlNode * req, xmlNode * input,
xmlNode * existing_cib, xmlNode ** result_cib, xmlNode ** answer)
{
int lpc = 0;
int max = 0;
int rc = pcmk_ok;
gboolean is_query = safe_str_eq(op, CIB_OP_QUERY);
xmlXPathObjectPtr xpathObj = NULL;
crm_trace("Processing \"%s\" event", op);
if (is_query) {
xpathObj = xpath_search(existing_cib, section);
} else {
xpathObj = xpath_search(*result_cib, section);
}
max = numXpathResults(xpathObj);
if (max < 1 && safe_str_eq(op, CIB_OP_DELETE)) {
crm_debug("%s was already removed", section);
} else if (max < 1) {
crm_debug("%s: %s does not exist", op, section);
rc = -ENXIO;
} else if (is_query) {
if (max > 1) {
*answer = create_xml_node(NULL, "xpath-query");
}
}
for (lpc = 0; lpc < max; lpc++) {
xmlChar *path = NULL;
xmlNode *match = getXpathResult(xpathObj, lpc);
if (match == NULL) {
continue;
}
path = xmlGetNodePath(match);
crm_debug("Processing %s op for %s (%s)", op, section, path);
free(path);
if (safe_str_eq(op, CIB_OP_DELETE)) {
free_xml(match);
if ((options & cib_multiple) == 0) {
break;
}
} else if (safe_str_eq(op, CIB_OP_MODIFY)) {
if (update_xml_child(match, input) == FALSE) {
rc = -ENXIO;
} else if ((options & cib_multiple) == 0) {
break;
}
} else if (safe_str_eq(op, CIB_OP_CREATE)) {
add_node_copy(match, input);
break;
} else if (safe_str_eq(op, CIB_OP_QUERY)) {
if (options & cib_no_children) {
const char *tag = TYPE(match);
xmlNode *shallow = create_xml_node(*answer, tag);
copy_in_properties(shallow, match);
if (*answer == NULL) {
*answer = shallow;
}
} else if (options & cib_xpath_address) {
int path_len = 0;
char *path = NULL;
xmlNode *parent = match;
while (parent && parent->type == XML_ELEMENT_NODE) {
int extra = 1;
char *new_path = NULL;
const char *id = crm_element_value(parent, XML_ATTR_ID);
extra += strlen((const char *)parent->name);
if (id) {
extra += 8; /* [@id=""] */
extra += strlen(id);
}
path_len += extra;
new_path = malloc(path_len + 1);
if(new_path == NULL) {
break;
} else if (id) {
snprintf(new_path, path_len + 1, "/%s[@id='%s']%s", parent->name, id,
path ? path : "");
} else {
snprintf(new_path, path_len + 1, "/%s%s", parent->name, path ? path : "");
}
free(path);
path = new_path;
parent = parent->parent;
}
crm_trace("Got: %s\n", path);
if (*answer == NULL) {
*answer = create_xml_node(NULL, "xpath-query");
}
parent = create_xml_node(*answer, "xpath-query-path");
crm_xml_add(parent, XML_ATTR_ID, path);
free(path);
} else if (*answer) {
add_node_copy(*answer, match);
} else {
*answer = match;
}
} else if (safe_str_eq(op, CIB_OP_REPLACE)) {
xmlNode *parent = match->parent;
free_xml(match);
if (input != NULL) {
add_node_copy(parent, input);
}
if ((options & cib_multiple) == 0) {
break;
}
}
}
freeXpathObject(xpathObj);
return rc;
}
void
cib_process_request(xmlNode * request, gboolean force_synchronous, gboolean privileged,
gboolean from_peer, cib_client_t * cib_client)
{
int call_type = 0;
int call_options = 0;
gboolean process = TRUE;
gboolean is_update = TRUE;
gboolean needs_reply = TRUE;
gboolean local_notify = FALSE;
gboolean needs_forward = FALSE;
gboolean global_update = crm_is_true(crm_element_value(request, F_CIB_GLOBAL_UPDATE));
xmlNode *op_reply = NULL;
xmlNode *result_diff = NULL;
int rc = pcmk_ok;
const char *op = crm_element_value(request, F_CIB_OPERATION);
const char *originator = crm_element_value(request, F_ORIG);
const char *host = crm_element_value(request, F_CIB_HOST);
const char *client_id = crm_element_value(request, F_CIB_CLIENTID);
crm_trace("%s Processing msg %s", cib_our_uname, crm_element_value(request, F_SEQ));
cib_num_ops++;
if (cib_num_ops == 0) {
cib_num_fail = 0;
cib_num_local = 0;
cib_num_updates = 0;
crm_info("Stats wrapped around");
}
if (host != NULL && strlen(host) == 0) {
host = NULL;
}
crm_element_value_int(request, F_CIB_CALLOPTS, &call_options);
if (force_synchronous) {
call_options |= cib_sync_call;
}
crm_trace("Processing %s message (%s) for %s...",
from_peer ? "peer" : "local",
from_peer ? originator : cib_our_uname, host ? host : "master");
rc = cib_get_operation_id(op, &call_type);
if (rc != pcmk_ok) {
/* TODO: construct error reply? */
crm_err("Pre-processing of command failed: %s", pcmk_strerror(rc));
return;
}
is_update = cib_op_modifies(call_type);
if (is_update) {
cib_num_updates++;
}
if (from_peer == FALSE) {
parse_local_options(cib_client, call_type, call_options, host, op,
&local_notify, &needs_reply, &process, &needs_forward);
} else if (parse_peer_options(call_type, request, &local_notify,
&needs_reply, &process, &needs_forward) == FALSE) {
return;
}
crm_trace("Finished determining processing actions");
if (call_options & cib_discard_reply) {
needs_reply = is_update;
local_notify = FALSE;
}
if (needs_forward) {
forward_request(request, cib_client, call_options);
return;
}
if (cib_status != pcmk_ok) {
rc = cib_status;
crm_err("Operation ignored, cluster configuration is invalid."
" Please repair and restart: %s", pcmk_strerror(cib_status));
op_reply = cib_construct_reply(request, the_cib, cib_status);
} else if (process) {
int level = LOG_INFO;
const char *section = crm_element_value(request, F_CIB_SECTION);
cib_num_local++;
rc = cib_process_command(request, &op_reply, &result_diff, privileged);
if (global_update) {
switch (rc) {
case pcmk_ok:
case -pcmk_err_old_data:
case -pcmk_err_diff_resync:
case -pcmk_err_diff_failed:
level = LOG_DEBUG_2;
break;
default:
level = LOG_ERR;
}
} else if (safe_str_eq(op, CIB_OP_QUERY)) {
level = LOG_DEBUG_2;
} else if (rc != pcmk_ok) {
cib_num_fail++;
level = LOG_WARNING;
} else if (safe_str_eq(op, CIB_OP_SLAVE)) {
level = LOG_DEBUG_2;
} else if (safe_str_eq(section, XML_CIB_TAG_STATUS)) {
level = LOG_DEBUG_2;
}
do_crm_log_unlikely(level,
"Operation complete: op %s for section %s (origin=%s/%s/%s, version=%s.%s.%s): %s (rc=%d)",
op, section ? section : "'all'", originator ? originator : "local",
crm_element_value(request, F_CIB_CLIENTNAME), crm_element_value(request,
F_CIB_CALLID),
the_cib ? crm_element_value(the_cib, XML_ATTR_GENERATION_ADMIN) : "0",
the_cib ? crm_element_value(the_cib, XML_ATTR_GENERATION) : "0",
the_cib ? crm_element_value(the_cib, XML_ATTR_NUMUPDATES) : "0",
pcmk_strerror(rc), rc);
if (op_reply == NULL && (needs_reply || local_notify)) {
crm_err("Unexpected NULL reply to message");
crm_log_xml_err(request, "null reply");
needs_reply = FALSE;
local_notify = FALSE;
}
}
crm_trace("processing response cases %.16x %.16x", call_options, cib_sync_call);
/* from now on we are the server */
if (needs_reply == FALSE || stand_alone) {
/* nothing more to do...
* this was a non-originating slave update
*/
crm_trace("Completed slave update");
} else if (rc == pcmk_ok && result_diff != NULL && !(call_options & cib_inhibit_bcast)) {
gboolean broadcast = FALSE;
cib_local_bcast_num++;
crm_xml_add_int(request, F_CIB_LOCAL_NOTIFY_ID, cib_local_bcast_num);
broadcast = send_peer_reply(request, result_diff, originator, TRUE);
if (broadcast &&
client_id &&
local_notify &&
op_reply) {
/* If we have been asked to sync the reply,
* and a bcast msg has gone out, we queue the local notify
* until we know the bcast message has been received */
local_notify = FALSE;
queue_local_notify(op_reply, client_id, (call_options & cib_sync_call), from_peer);
op_reply = NULL; /* the reply is queued, so don't free here */
}
} else if (call_options & cib_discard_reply) {
crm_trace("Caller isn't interested in reply");
} else if (from_peer) {
if (is_update == FALSE || result_diff == NULL) {
crm_trace("Request not broadcast: R/O call");
} else if (call_options & cib_inhibit_bcast) {
crm_trace("Request not broadcast: inhibited");
} else if (rc != pcmk_ok) {
crm_trace("Request not broadcast: call failed: %s", pcmk_strerror(rc));
} else {
crm_trace("Directing reply to %s", originator);
}
send_peer_reply(op_reply, result_diff, originator, FALSE);
}
if (local_notify && client_id) {
if (process == FALSE) {
do_local_notify(request, client_id, call_options & cib_sync_call, from_peer);
} else {
do_local_notify(op_reply, client_id, call_options & cib_sync_call, from_peer);
}
}
free_xml(op_reply);
free_xml(result_diff);
return;
}
gboolean
test_attr_expression(xmlNode * expr, GHashTable * hash, crm_time_t * now)
{
gboolean accept = FALSE;
int cmp = 0;
const char *h_val = NULL;
const char *op = NULL;
const char *type = NULL;
const char *attr = NULL;
const char *value = NULL;
attr = crm_element_value(expr, XML_EXPR_ATTR_ATTRIBUTE);
op = crm_element_value(expr, XML_EXPR_ATTR_OPERATION);
value = crm_element_value(expr, XML_EXPR_ATTR_VALUE);
type = crm_element_value(expr, XML_EXPR_ATTR_TYPE);
if (attr == NULL || op == NULL) {
pe_err("Invlaid attribute or operation in expression"
" (\'%s\' \'%s\' \'%s\')", crm_str(attr), crm_str(op), crm_str(value));
return FALSE;
}
if (hash != NULL) {
h_val = (const char *)g_hash_table_lookup(hash, attr);
}
if (value != NULL && h_val != NULL) {
if (type == NULL) {
if (safe_str_eq(op, "lt")
|| safe_str_eq(op, "lte")
|| safe_str_eq(op, "gt")
|| safe_str_eq(op, "gte")) {
type = "number";
} else {
type = "string";
}
crm_trace("Defaulting to %s based comparison for '%s' op", type, op);
}
if (safe_str_eq(type, "string")) {
cmp = strcasecmp(h_val, value);
} else if (safe_str_eq(type, "number")) {
int h_val_f = crm_parse_int(h_val, NULL);
int value_f = crm_parse_int(value, NULL);
if (h_val_f < value_f) {
cmp = -1;
} else if (h_val_f > value_f) {
cmp = 1;
} else {
cmp = 0;
}
} else if (safe_str_eq(type, "version")) {
cmp = compare_version(h_val, value);
}
} else if (value == NULL && h_val == NULL) {
cmp = 0;
} else if (value == NULL) {
cmp = 1;
} else {
cmp = -1;
}
if (safe_str_eq(op, "defined")) {
if (h_val != NULL) {
accept = TRUE;
}
} else if (safe_str_eq(op, "not_defined")) {
if (h_val == NULL) {
accept = TRUE;
}
} else if (safe_str_eq(op, "eq")) {
if ((h_val == value) || cmp == 0) {
accept = TRUE;
}
} else if (safe_str_eq(op, "ne")) {
if ((h_val == NULL && value != NULL)
|| (h_val != NULL && value == NULL)
|| cmp != 0) {
accept = TRUE;
}
} else if (value == NULL || h_val == NULL) {
/* the comparision is meaningless from this point on */
accept = FALSE;
} else if (safe_str_eq(op, "lt")) {
if (cmp < 0) {
accept = TRUE;
}
} else if (safe_str_eq(op, "lte")) {
if (cmp <= 0) {
accept = TRUE;
}
} else if (safe_str_eq(op, "gt")) {
if (cmp > 0) {
accept = TRUE;
}
} else if (safe_str_eq(op, "gte")) {
if (cmp >= 0) {
accept = TRUE;
}
}
return accept;
}
int
cib_process_command(xmlNode * request, xmlNode ** reply, xmlNode ** cib_diff, gboolean privileged)
{
xmlNode *input = NULL;
xmlNode *output = NULL;
xmlNode *result_cib = NULL;
xmlNode *current_cib = NULL;
#if ENABLE_ACL
xmlNode *filtered_current_cib = NULL;
#endif
int call_type = 0;
int call_options = 0;
int log_level = LOG_DEBUG_4;
const char *op = NULL;
const char *section = NULL;
int rc = pcmk_ok;
int rc2 = pcmk_ok;
gboolean send_r_notify = FALSE;
gboolean global_update = FALSE;
gboolean config_changed = FALSE;
gboolean manage_counters = TRUE;
CRM_ASSERT(cib_status == pcmk_ok);
*reply = NULL;
*cib_diff = NULL;
current_cib = the_cib;
/* Start processing the request... */
op = crm_element_value(request, F_CIB_OPERATION);
crm_element_value_int(request, F_CIB_CALLOPTS, &call_options);
rc = cib_get_operation_id(op, &call_type);
if (rc == pcmk_ok && privileged == FALSE) {
rc = cib_op_can_run(call_type, call_options, privileged, global_update);
}
rc2 = cib_op_prepare(call_type, request, &input, §ion);
if (rc == pcmk_ok) {
rc = rc2;
}
if (rc != pcmk_ok) {
crm_trace("Call setup failed: %s", pcmk_strerror(rc));
goto done;
} else if (cib_op_modifies(call_type) == FALSE) {
#if ENABLE_ACL
if (acl_enabled(config_hash) == FALSE
|| acl_filter_cib(request, current_cib, current_cib, &filtered_current_cib) == FALSE) {
rc = cib_perform_op(op, call_options, cib_op_func(call_type), TRUE,
section, request, input, FALSE, &config_changed,
current_cib, &result_cib, NULL, &output);
} else if (filtered_current_cib == NULL) {
crm_debug("Pre-filtered the entire cib");
rc = -EACCES;
} else {
crm_debug("Pre-filtered the queried cib according to the ACLs");
rc = cib_perform_op(op, call_options, cib_op_func(call_type), TRUE,
section, request, input, FALSE, &config_changed,
filtered_current_cib, &result_cib, NULL, &output);
}
#else
rc = cib_perform_op(op, call_options, cib_op_func(call_type), TRUE,
section, request, input, FALSE, &config_changed,
current_cib, &result_cib, NULL, &output);
#endif
CRM_CHECK(result_cib == NULL, free_xml(result_cib));
goto done;
}
/* Handle a valid write action */
global_update = crm_is_true(crm_element_value(request, F_CIB_GLOBAL_UPDATE));
if (global_update) {
manage_counters = FALSE;
call_options |= cib_force_diff;
CRM_CHECK(call_type == 3 || call_type == 4, crm_err("Call type: %d", call_type);
crm_log_xml_err(request, "bad op"));
}
#ifdef SUPPORT_PRENOTIFY
if ((call_options & cib_inhibit_notify) == 0) {
cib_pre_notify(call_options, op, the_cib, input);
}
#endif
if (rc == pcmk_ok) {
if (call_options & cib_inhibit_bcast) {
/* skip */
crm_trace("Skipping update: inhibit broadcast");
manage_counters = FALSE;
}
rc = cib_perform_op(op, call_options, cib_op_func(call_type), FALSE,
section, request, input, manage_counters, &config_changed,
current_cib, &result_cib, cib_diff, &output);
#if ENABLE_ACL
if (acl_enabled(config_hash) == TRUE
&& acl_check_diff(request, current_cib, result_cib, *cib_diff) == FALSE) {
rc = -EACCES;
}
#endif
if (rc == pcmk_ok && config_changed) {
time_t now;
char *now_str = NULL;
const char *validation = crm_element_value(result_cib, XML_ATTR_VALIDATION);
if (validation) {
int current_version = get_schema_version(validation);
int support_version = get_schema_version("pacemaker-1.1");
/* Once the later schemas support the "update-*" attributes, change "==" to ">=" -- Changed */
if (current_version >= support_version) {
const char *origin = crm_element_value(request, F_ORIG);
crm_xml_replace(result_cib, XML_ATTR_UPDATE_ORIG,
origin ? origin : cib_our_uname);
crm_xml_replace(result_cib, XML_ATTR_UPDATE_CLIENT,
crm_element_value(request, F_CIB_CLIENTNAME));
#if ENABLE_ACL
crm_xml_replace(result_cib, XML_ATTR_UPDATE_USER,
crm_element_value(request, F_CIB_USER));
#endif
}
}
now = time(NULL);
now_str = ctime(&now);
now_str[24] = EOS; /* replace the newline */
crm_xml_replace(result_cib, XML_CIB_ATTR_WRITTEN, now_str);
}
if (manage_counters == FALSE) {
config_changed = cib_config_changed(current_cib, result_cib, cib_diff);
}
/* Always write to disk for replace ops,
* this negates the need to detect ordering changes
*/
if (config_changed == FALSE && crm_str_eq(CIB_OP_REPLACE, op, TRUE)) {
config_changed = TRUE;
}
}
if (rc == pcmk_ok && (call_options & cib_dryrun) == 0) {
rc = activateCibXml(result_cib, config_changed, op);
if (rc == pcmk_ok && cib_internal_config_changed(*cib_diff)) {
cib_read_config(config_hash, result_cib);
}
if (crm_str_eq(CIB_OP_REPLACE, op, TRUE)) {
if (section == NULL) {
send_r_notify = TRUE;
} else if (safe_str_eq(section, XML_TAG_CIB)) {
send_r_notify = TRUE;
} else if (safe_str_eq(section, XML_CIB_TAG_NODES)) {
send_r_notify = TRUE;
} else if (safe_str_eq(section, XML_CIB_TAG_STATUS)) {
send_r_notify = TRUE;
}
} else if (crm_str_eq(CIB_OP_ERASE, op, TRUE)) {
send_r_notify = TRUE;
}
} else if (rc == -pcmk_err_dtd_validation) {
if (output != NULL) {
crm_log_xml_info(output, "cib:output");
free_xml(output);
}
#if ENABLE_ACL
{
xmlNode *filtered_result_cib = NULL;
if (acl_enabled(config_hash) == FALSE
|| acl_filter_cib(request, current_cib, result_cib,
&filtered_result_cib) == FALSE) {
output = result_cib;
} else {
crm_debug("Filtered the result cib for output according to the ACLs");
output = filtered_result_cib;
if (result_cib != NULL) {
free_xml(result_cib);
}
}
}
#else
output = result_cib;
#endif
} else {
free_xml(result_cib);
}
if ((call_options & cib_inhibit_notify) == 0) {
const char *call_id = crm_element_value(request, F_CIB_CALLID);
const char *client = crm_element_value(request, F_CIB_CLIENTNAME);
#ifdef SUPPORT_POSTNOTIFY
cib_post_notify(call_options, op, input, rc, the_cib);
#endif
cib_diff_notify(call_options, client, call_id, op, input, rc, *cib_diff);
}
if (send_r_notify) {
const char *origin = crm_element_value(request, F_ORIG);
cib_replace_notify(origin, the_cib, rc, *cib_diff);
}
if (rc != pcmk_ok) {
log_level = LOG_DEBUG_4;
if (rc == -pcmk_err_dtd_validation && global_update) {
log_level = LOG_WARNING;
crm_log_xml_info(input, "cib:global_update");
}
} else if (config_changed) {
log_level = LOG_DEBUG_3;
if (cib_is_master) {
log_level = LOG_NOTICE;
}
} else if (cib_is_master) {
log_level = LOG_DEBUG_2;
}
log_xml_diff(log_level, *cib_diff, "cib:diff");
done:
if ((call_options & cib_discard_reply) == 0) {
*reply = cib_construct_reply(request, output, rc);
crm_log_xml_trace(*reply, "cib:reply");
}
#if ENABLE_ACL
if (filtered_current_cib != NULL) {
free_xml(filtered_current_cib);
}
#endif
if (call_type >= 0) {
cib_op_cleanup(call_type, call_options, &input, &output);
}
return rc;
}
const char *
cluster_option(GHashTable * options, gboolean(*validate) (const char *),
const char *name, const char *old_name, const char *def_value)
{
const char *value = NULL;
char *new_value = NULL;
CRM_ASSERT(name != NULL);
if (options) {
value = g_hash_table_lookup(options, name);
if ((value == NULL) && old_name) {
value = g_hash_table_lookup(options, old_name);
if (value != NULL) {
crm_config_warn("Support for legacy name '%s' for cluster option '%s'"
" is deprecated and will be removed in a future release",
old_name, name);
// Inserting copy with current name ensures we only warn once
new_value = strdup(value);
g_hash_table_insert(options, strdup(name), new_value);
value = new_value;
}
}
if (value && validate && (validate(value) == FALSE)) {
crm_config_err("Resetting cluster option '%s' to default: value '%s' is invalid",
name, value);
value = NULL;
}
if (value) {
return value;
}
}
// No value found, use default
value = def_value;
if (value == NULL) {
crm_trace("No value or default provided for cluster option '%s'",
name);
return NULL;
}
if (validate) {
CRM_CHECK(validate(value) != FALSE,
crm_err("Bug: default value for cluster option '%s' is invalid", name);
return NULL);
}
crm_trace("Using default value '%s' for cluster option '%s'",
value, name);
if (options) {
new_value = strdup(value);
g_hash_table_insert(options, strdup(name), new_value);
value = new_value;
}
return value;
}
/* A_DC_JOIN_OFFER_ONE */
void
do_dc_join_offer_one(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)
{
crm_node_t *member;
ha_msg_input_t *welcome = NULL;
const char *op = NULL;
const char *join_to = NULL;
if (msg_data->data) {
welcome = fsa_typed_data(fsa_dt_ha_msg);
} else {
crm_info("A new node joined - wait until it contacts us");
return;
}
if (welcome == NULL) {
crm_err("Attempt to send welcome message without a message to reply to!");
return;
}
join_to = crm_element_value(welcome->msg, F_CRM_HOST_FROM);
if (join_to == NULL) {
crm_err("Attempt to send welcome message without a host to reply to!");
return;
}
member = crm_get_peer(0, join_to);
if (crm_is_peer_active(member) == FALSE) {
crm_err("%s is not a fully active member of our partition", join_to);
return;
}
op = crm_element_value(welcome->msg, F_CRM_TASK);
if (join_to != NULL && (cur_state == S_INTEGRATION || cur_state == S_FINALIZE_JOIN)) {
/* note: it _is_ possible that a node will have been
* sick or starting up when the original offer was made.
* however, it will either re-announce itself in due course
* _or_ we can re-store the original offer on the client.
*/
crm_trace("(Re-)offering membership to %s...", join_to);
}
crm_info("join-%d: Processing %s request from %s in state %s",
current_join_id, op, join_to, fsa_state2string(cur_state));
join_make_offer(NULL, member, NULL);
/* always offer to the DC (ourselves)
* this ensures the correct value for max_generation_from
*/
member = crm_get_peer(0, fsa_our_uname);
join_make_offer(NULL, member, NULL);
/* this was a genuine join request, cancel any existing
* transition and invoke the PE
*/
start_transition(fsa_state);
/* dont waste time by invoking the pe yet; */
crm_debug("Waiting on %d outstanding join acks for join-%d",
g_hash_table_size(welcomed_nodes), current_join_id);
}
/* coverity[+kill] */
void
crm_abort(const char *file, const char *function, int line,
const char *assert_condition, gboolean do_core, gboolean do_fork)
{
int rc = 0;
int pid = 0;
int status = 0;
/* Implied by the parent's error logging below */
/* crm_write_blackbox(0); */
if(crm_is_daemon == FALSE) {
/* This is a command line tool - do not fork */
/* crm_add_logfile(NULL); * Record it to a file? */
crm_enable_stderr(TRUE); /* Make sure stderr is enabled so we can tell the caller */
do_fork = FALSE; /* Just crash if needed */
}
if (do_core == FALSE) {
crm_err("%s: Triggered assert at %s:%d : %s", function, file, line, assert_condition);
return;
} else if (do_fork) {
pid = fork();
} else {
crm_err("%s: Triggered fatal assert at %s:%d : %s", function, file, line, assert_condition);
}
if (pid == -1) {
crm_crit("%s: Cannot create core for non-fatal assert at %s:%d : %s",
function, file, line, assert_condition);
return;
} else if(pid == 0) {
/* Child process */
abort();
return;
}
/* Parent process */
crm_err("%s: Forked child %d to record non-fatal assert at %s:%d : %s",
function, pid, file, line, assert_condition);
crm_write_blackbox(SIGTRAP, NULL);
do {
rc = waitpid(pid, &status, 0);
if(rc == pid) {
return; /* Job done */
}
} while(errno == EINTR);
if (errno == ECHILD) {
/* crm_mon does this */
crm_trace("Cannot wait on forked child %d - SIGCHLD is probably set to SIG_IGN", pid);
return;
}
crm_perror(LOG_ERR, "Cannot wait on forked child %d", pid);
}
/* A_DC_JOIN_PROCESS_ACK */
void
do_dc_join_ack(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 join_id = -1;
int call_id = 0;
ha_msg_input_t *join_ack = fsa_typed_data(fsa_dt_ha_msg);
const char *join_id_s = NULL;
const char *join_state = NULL;
const char *op = crm_element_value(join_ack->msg, F_CRM_TASK);
const char *join_from = crm_element_value(join_ack->msg, F_CRM_HOST_FROM);
if (safe_str_neq(op, CRM_OP_JOIN_CONFIRM)) {
crm_debug("Ignoring op=%s message from %s", op, join_from);
return;
}
crm_element_value_int(join_ack->msg, F_CRM_JOIN_ID, &join_id);
join_id_s = crm_element_value(join_ack->msg, F_CRM_JOIN_ID);
/* now update them to "member" */
crm_trace("Processing ack from %s", join_from);
join_state = (const char *)
g_hash_table_lookup(finalized_nodes, join_from);
if (join_state == NULL) {
crm_err("Join not in progress: ignoring join-%d from %s", join_id, join_from);
return;
} else if (safe_str_neq(join_state, CRMD_JOINSTATE_MEMBER)) {
crm_err("Node %s wasnt invited to join the cluster", join_from);
g_hash_table_remove(finalized_nodes, join_from);
return;
} else if (join_id != current_join_id) {
crm_err("Invalid response from %s: join-%d vs. join-%d",
join_from, join_id, current_join_id);
g_hash_table_remove(finalized_nodes, join_from);
return;
}
g_hash_table_remove(finalized_nodes, join_from);
if (g_hash_table_lookup(confirmed_nodes, join_from) != NULL) {
crm_err("join-%d: hash already contains confirmation from %s", join_id, join_from);
}
g_hash_table_insert(confirmed_nodes, strdup(join_from), strdup(join_id_s));
crm_info("join-%d: Updating node state to %s for %s",
join_id, CRMD_JOINSTATE_MEMBER, join_from);
/* update CIB with the current LRM status from the node
* We dont need to notify the TE of these updates, a transition will
* be started in due time
*/
erase_status_tag(join_from, XML_CIB_TAG_LRM, cib_scope_local);
fsa_cib_update(XML_CIB_TAG_STATUS, join_ack->xml,
cib_scope_local | cib_quorum_override | cib_can_create, call_id, NULL);
add_cib_op_callback(fsa_cib_conn, call_id, FALSE, NULL, join_update_complete_callback);
crm_debug("join-%d: Registered callback for LRM update %d", join_id, call_id);
}
static void
st_ipc_created(qb_ipcs_connection_t * c)
{
crm_trace("Connection created for %p", c);
}
static void
ipc_proxy_created(qb_ipcs_connection_t * c)
{
crm_trace("Connection %p", c);
}
