diff --git a/daemons/controld/controld_execd.c b/daemons/controld/controld_execd.c
index b4ba16a534..4fc2b8861a 100644
--- a/daemons/controld/controld_execd.c
+++ b/daemons/controld/controld_execd.c
@@ -1,2893 +1,2900 @@
/*
* Copyright 2004-2021 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 <regex.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <crm/crm.h>
#include <crm/lrmd.h> // lrmd_event_data_t, lrmd_rsc_info_t, etc.
#include <crm/services.h>
#include <crm/msg_xml.h>
#include <crm/common/xml.h>
#include <crm/pengine/rules.h>
#include <crm/lrmd_internal.h>
#include <pacemaker-internal.h>
#include <pacemaker-controld.h>
#define START_DELAY_THRESHOLD 5 * 60 * 1000
#define MAX_LRM_REG_FAILS 30
struct delete_event_s {
int rc;
const char *rsc;
lrm_state_t *lrm_state;
};
static gboolean is_rsc_active(lrm_state_t * lrm_state, const char *rsc_id);
static gboolean build_active_RAs(lrm_state_t * lrm_state, xmlNode * rsc_list);
static gboolean stop_recurring_actions(gpointer key, gpointer value, gpointer user_data);
static lrmd_event_data_t *construct_op(lrm_state_t * lrm_state, xmlNode * rsc_op,
const char *rsc_id, const char *operation);
static void do_lrm_rsc_op(lrm_state_t *lrm_state, lrmd_rsc_info_t *rsc,
const char *operation, xmlNode *msg);
static gboolean lrm_state_verify_stopped(lrm_state_t * lrm_state, enum crmd_fsa_state cur_state,
int log_level);
static int do_update_resource(const char *node_name, lrmd_rsc_info_t *rsc,
lrmd_event_data_t *op, time_t lock_time);
static void
lrm_connection_destroy(void)
{
if (pcmk_is_set(fsa_input_register, R_LRM_CONNECTED)) {
crm_crit("Connection to executor failed");
register_fsa_input(C_FSA_INTERNAL, I_ERROR, NULL);
controld_clear_fsa_input_flags(R_LRM_CONNECTED);
} else {
crm_info("Disconnected from executor");
}
}
static char *
make_stop_id(const char *rsc, int call_id)
{
return crm_strdup_printf("%s:%d", rsc, call_id);
}
static void
copy_instance_keys(gpointer key, gpointer value, gpointer user_data)
{
if (strstr(key, CRM_META "_") == NULL) {
g_hash_table_replace(user_data, strdup((const char *)key), strdup((const char *)value));
}
}
static void
copy_meta_keys(gpointer key, gpointer value, gpointer user_data)
{
if (strstr(key, CRM_META "_") != NULL) {
g_hash_table_replace(user_data, strdup((const char *)key), strdup((const char *)value));
}
}
/*!
* \internal
* \brief Remove a recurring operation from a resource's history
*
* \param[in,out] history Resource history to modify
* \param[in] op Operation to remove
*
* \return TRUE if the operation was found and removed, FALSE otherwise
*/
static gboolean
history_remove_recurring_op(rsc_history_t *history, const lrmd_event_data_t *op)
{
GList *iter;
for (iter = history->recurring_op_list; iter != NULL; iter = iter->next) {
lrmd_event_data_t *existing = iter->data;
if ((op->interval_ms == existing->interval_ms)
&& pcmk__str_eq(op->rsc_id, existing->rsc_id, pcmk__str_none)
&& pcmk__str_eq(op->op_type, existing->op_type, pcmk__str_casei)) {
history->recurring_op_list = g_list_delete_link(history->recurring_op_list, iter);
lrmd_free_event(existing);
return TRUE;
}
}
return FALSE;
}
/*!
* \internal
* \brief Free all recurring operations in resource history
*
* \param[in,out] history Resource history to modify
*/
static void
history_free_recurring_ops(rsc_history_t *history)
{
GList *iter;
for (iter = history->recurring_op_list; iter != NULL; iter = iter->next) {
lrmd_free_event(iter->data);
}
g_list_free(history->recurring_op_list);
history->recurring_op_list = NULL;
}
/*!
* \internal
* \brief Free resource history
*
* \param[in,out] history Resource history to free
*/
void
history_free(gpointer data)
{
rsc_history_t *history = (rsc_history_t*)data;
if (history->stop_params) {
g_hash_table_destroy(history->stop_params);
}
/* Don't need to free history->rsc.id because it's set to history->id */
free(history->rsc.type);
free(history->rsc.standard);
free(history->rsc.provider);
lrmd_free_event(history->failed);
lrmd_free_event(history->last);
free(history->id);
history_free_recurring_ops(history);
free(history);
}
static void
update_history_cache(lrm_state_t * lrm_state, lrmd_rsc_info_t * rsc, lrmd_event_data_t * op)
{
int target_rc = 0;
rsc_history_t *entry = NULL;
if (op->rsc_deleted) {
crm_debug("Purged history for '%s' after %s", op->rsc_id, op->op_type);
controld_delete_resource_history(op->rsc_id, lrm_state->node_name,
NULL, crmd_cib_smart_opt());
return;
}
if (pcmk__str_eq(op->op_type, RSC_NOTIFY, pcmk__str_casei)) {
return;
}
crm_debug("Updating history for '%s' with %s op", op->rsc_id, op->op_type);
entry = g_hash_table_lookup(lrm_state->resource_history, op->rsc_id);
if (entry == NULL && rsc) {
entry = calloc(1, sizeof(rsc_history_t));
entry->id = strdup(op->rsc_id);
g_hash_table_insert(lrm_state->resource_history, entry->id, entry);
entry->rsc.id = entry->id;
entry->rsc.type = strdup(rsc->type);
entry->rsc.standard = strdup(rsc->standard);
if (rsc->provider) {
entry->rsc.provider = strdup(rsc->provider);
} else {
entry->rsc.provider = NULL;
}
} else if (entry == NULL) {
crm_info("Resource %s no longer exists, not updating cache", op->rsc_id);
return;
}
entry->last_callid = op->call_id;
target_rc = rsc_op_expected_rc(op);
if (op->op_status == PCMK_EXEC_CANCELLED) {
if (op->interval_ms > 0) {
crm_trace("Removing cancelled recurring op: " PCMK__OP_FMT,
op->rsc_id, op->op_type, op->interval_ms);
history_remove_recurring_op(entry, op);
return;
} else {
crm_trace("Skipping " PCMK__OP_FMT " rc=%d, status=%d",
op->rsc_id, op->op_type, op->interval_ms, op->rc,
op->op_status);
}
} else if (did_rsc_op_fail(op, target_rc)) {
/* Store failed monitors here, otherwise the block below will cause them
* to be forgotten when a stop happens.
*/
if (entry->failed) {
lrmd_free_event(entry->failed);
}
entry->failed = lrmd_copy_event(op);
} else if (op->interval_ms == 0) {
if (entry->last) {
lrmd_free_event(entry->last);
}
entry->last = lrmd_copy_event(op);
if (op->params && pcmk__strcase_any_of(op->op_type, CRMD_ACTION_START,
CRMD_ACTION_RELOAD,
CRMD_ACTION_RELOAD_AGENT,
CRMD_ACTION_STATUS, NULL)) {
if (entry->stop_params) {
g_hash_table_destroy(entry->stop_params);
}
entry->stop_params = pcmk__strkey_table(free, free);
g_hash_table_foreach(op->params, copy_instance_keys, entry->stop_params);
}
}
if (op->interval_ms > 0) {
/* Ensure there are no duplicates */
history_remove_recurring_op(entry, op);
crm_trace("Adding recurring op: " PCMK__OP_FMT,
op->rsc_id, op->op_type, op->interval_ms);
entry->recurring_op_list = g_list_prepend(entry->recurring_op_list, lrmd_copy_event(op));
} else if (entry->recurring_op_list && !pcmk__str_eq(op->op_type, RSC_STATUS, pcmk__str_casei)) {
crm_trace("Dropping %d recurring ops because of: " PCMK__OP_FMT,
g_list_length(entry->recurring_op_list), op->rsc_id,
op->op_type, op->interval_ms);
history_free_recurring_ops(entry);
}
}
/*!
* \internal
* \brief Send a direct OK ack for a resource task
*
* \param[in] lrm_state LRM connection
* \param[in] input Input message being ack'ed
* \param[in] rsc_id ID of affected resource
* \param[in] rsc Affected resource (if available)
* \param[in] task Operation task being ack'ed
* \param[in] ack_host Name of host to send ack to
* \param[in] ack_sys IPC system name to ack
*/
static void
send_task_ok_ack(lrm_state_t *lrm_state, ha_msg_input_t *input,
const char *rsc_id, lrmd_rsc_info_t *rsc, const char *task,
const char *ack_host, const char *ack_sys)
{
lrmd_event_data_t *op = construct_op(lrm_state, input->xml, rsc_id, task);
lrmd__set_result(op, PCMK_OCF_OK, PCMK_EXEC_DONE, NULL);
controld_ack_event_directly(ack_host, ack_sys, rsc, op, rsc_id);
lrmd_free_event(op);
}
static inline const char *
op_node_name(lrmd_event_data_t *op)
{
return op->remote_nodename? op->remote_nodename : fsa_our_uname;
}
void
lrm_op_callback(lrmd_event_data_t * op)
{
CRM_CHECK(op != NULL, return);
switch (op->type) {
case lrmd_event_disconnect:
if (op->remote_nodename == NULL) {
/* If this is the local executor IPC connection, set the right
* bits in the controller when the connection goes down.
*/
lrm_connection_destroy();
}
break;
case lrmd_event_exec_complete:
{
lrm_state_t *lrm_state = lrm_state_find(op_node_name(op));
CRM_ASSERT(lrm_state != NULL);
process_lrm_event(lrm_state, op, NULL, NULL);
}
break;
default:
break;
}
}
static void
try_local_executor_connect(long long action, fsa_data_t *msg_data,
lrm_state_t *lrm_state)
{
int rc = pcmk_rc_ok;
crm_debug("Connecting to the local executor");
// If we can connect, great
rc = controld_connect_local_executor(lrm_state);
if (rc == pcmk_rc_ok) {
controld_set_fsa_input_flags(R_LRM_CONNECTED);
crm_info("Connection to the local executor established");
return;
}
// Otherwise, if we can try again, set a timer to do so
if (lrm_state->num_lrm_register_fails < MAX_LRM_REG_FAILS) {
crm_warn("Failed to connect to the local executor %d time%s "
"(%d max): %s", lrm_state->num_lrm_register_fails,
pcmk__plural_s(lrm_state->num_lrm_register_fails),
MAX_LRM_REG_FAILS, pcmk_rc_str(rc));
controld_start_timer(wait_timer);
crmd_fsa_stall(FALSE);
return;
}
// Otherwise give up
crm_err("Failed to connect to the executor the max allowed "
"%d time%s: %s", lrm_state->num_lrm_register_fails,
pcmk__plural_s(lrm_state->num_lrm_register_fails),
pcmk_rc_str(rc));
register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
}
/* A_LRM_CONNECT */
void
do_lrm_control(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)
{
/* This only pertains to local executor connections. Remote connections are
* handled as resources within the scheduler. Connecting and disconnecting
* from remote executor instances is handled differently.
*/
lrm_state_t *lrm_state = NULL;
if(fsa_our_uname == NULL) {
return; /* Nothing to do */
}
lrm_state = lrm_state_find_or_create(fsa_our_uname);
if (lrm_state == NULL) {
register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
return;
}
if (action & A_LRM_DISCONNECT) {
if (lrm_state_verify_stopped(lrm_state, cur_state, LOG_INFO) == FALSE) {
if (action == A_LRM_DISCONNECT) {
crmd_fsa_stall(FALSE);
return;
}
}
controld_clear_fsa_input_flags(R_LRM_CONNECTED);
crm_info("Disconnecting from the executor");
lrm_state_disconnect(lrm_state);
lrm_state_reset_tables(lrm_state, FALSE);
crm_notice("Disconnected from the executor");
}
if (action & A_LRM_CONNECT) {
try_local_executor_connect(action, msg_data, lrm_state);
}
if (action & ~(A_LRM_CONNECT | A_LRM_DISCONNECT)) {
crm_err("Unexpected action %s in %s", fsa_action2string(action),
__func__);
}
}
static gboolean
lrm_state_verify_stopped(lrm_state_t * lrm_state, enum crmd_fsa_state cur_state, int log_level)
{
int counter = 0;
gboolean rc = TRUE;
const char *when = "lrm disconnect";
GHashTableIter gIter;
const char *key = NULL;
rsc_history_t *entry = NULL;
active_op_t *pending = NULL;
crm_debug("Checking for active resources before exit");
if (cur_state == S_TERMINATE) {
log_level = LOG_ERR;
when = "shutdown";
} else if (pcmk_is_set(fsa_input_register, R_SHUTDOWN)) {
when = "shutdown... waiting";
}
if (lrm_state->pending_ops && lrm_state_is_connected(lrm_state) == TRUE) {
guint removed = g_hash_table_foreach_remove(
lrm_state->pending_ops, stop_recurring_actions, lrm_state);
guint nremaining = g_hash_table_size(lrm_state->pending_ops);
if (removed || nremaining) {
crm_notice("Stopped %u recurring operation%s at %s (%u remaining)",
removed, pcmk__plural_s(removed), when, nremaining);
}
}
if (lrm_state->pending_ops) {
g_hash_table_iter_init(&gIter, lrm_state->pending_ops);
while (g_hash_table_iter_next(&gIter, NULL, (void **)&pending)) {
/* Ignore recurring actions in the shutdown calculations */
if (pending->interval_ms == 0) {
counter++;
}
}
}
if (counter > 0) {
do_crm_log(log_level, "%d pending executor operation%s at %s",
counter, pcmk__plural_s(counter), when);
if ((cur_state == S_TERMINATE)
|| !pcmk_is_set(fsa_input_register, R_SENT_RSC_STOP)) {
g_hash_table_iter_init(&gIter, lrm_state->pending_ops);
while (g_hash_table_iter_next(&gIter, (gpointer*)&key, (gpointer*)&pending)) {
do_crm_log(log_level, "Pending action: %s (%s)", key, pending->op_key);
}
} else {
rc = FALSE;
}
return rc;
}
if (lrm_state->resource_history == NULL) {
return rc;
}
if (pcmk_is_set(fsa_input_register, R_SHUTDOWN)) {
/* At this point we're not waiting, we're just shutting down */
when = "shutdown";
}
counter = 0;
g_hash_table_iter_init(&gIter, lrm_state->resource_history);
while (g_hash_table_iter_next(&gIter, NULL, (gpointer*)&entry)) {
if (is_rsc_active(lrm_state, entry->id) == FALSE) {
continue;
}
counter++;
if (log_level == LOG_ERR) {
crm_info("Found %s active at %s", entry->id, when);
} else {
crm_trace("Found %s active at %s", entry->id, when);
}
if (lrm_state->pending_ops) {
GHashTableIter hIter;
g_hash_table_iter_init(&hIter, lrm_state->pending_ops);
while (g_hash_table_iter_next(&hIter, (gpointer*)&key, (gpointer*)&pending)) {
if (pcmk__str_eq(entry->id, pending->rsc_id, pcmk__str_none)) {
crm_notice("%sction %s (%s) incomplete at %s",
pending->interval_ms == 0 ? "A" : "Recurring a",
key, pending->op_key, when);
}
}
}
}
if (counter) {
crm_err("%d resource%s active at %s",
counter, (counter == 1)? " was" : "s were", when);
}
return rc;
}
/*!
* \internal
* \brief Build XML and string of parameters meeting some criteria, for digest
*
* \param[in] op Executor event with parameter table to use
* \param[in] metadata Parsed meta-data for executed resource agent
* \param[in] param_type Flag used for selection criteria
* \param[out] result Will be set to newly created XML with selected
* parameters as attributes
*
* \return Newly allocated space-separated string of parameter names
* \note Selection criteria varies by param_type: for the restart digest, we
* want parameters that are *not* marked reloadable (OCF 1.1) or that
* *are* marked unique (pre-1.1), for both string and XML results; for the
* secure digest, we want parameters that *are* marked private for the
* string, but parameters that are *not* marked private for the XML.
* \note It is the caller's responsibility to free the string return value with
* free() and the XML result with free_xml().
*/
static char *
build_parameter_list(const lrmd_event_data_t *op,
const struct ra_metadata_s *metadata,
enum ra_param_flags_e param_type, xmlNode **result)
{
char *list = NULL;
size_t len = 0;
*result = create_xml_node(NULL, XML_TAG_PARAMS);
for (GList *iter = metadata->ra_params; iter != NULL; iter = iter->next) {
struct ra_param_s *param = (struct ra_param_s *) iter->data;
bool accept_for_list = false;
bool accept_for_xml = false;
switch (param_type) {
case ra_param_reloadable:
accept_for_list = !pcmk_is_set(param->rap_flags, param_type);
accept_for_xml = accept_for_list;
break;
case ra_param_unique:
accept_for_list = pcmk_is_set(param->rap_flags, param_type);
accept_for_xml = accept_for_list;
break;
case ra_param_private:
accept_for_list = pcmk_is_set(param->rap_flags, param_type);
accept_for_xml = !accept_for_list;
break;
}
if (accept_for_list) {
crm_trace("Attr %s is %s", param->rap_name, ra_param_flag2text(param_type));
if (list == NULL) {
// We will later search for " WORD ", so start list with a space
pcmk__add_word(&list, &len, " ");
}
pcmk__add_word(&list, &len, param->rap_name);
} else {
crm_trace("Rejecting %s for %s", param->rap_name, ra_param_flag2text(param_type));
}
if (accept_for_xml) {
const char *v = g_hash_table_lookup(op->params, param->rap_name);
if (v != NULL) {
crm_trace("Adding attr %s=%s to the xml result", param->rap_name, v);
crm_xml_add(*result, param->rap_name, v);
}
}
}
if (list != NULL) {
// We will later search for " WORD ", so end list with a space
pcmk__add_word(&list, &len, " ");
}
return list;
}
static void
append_restart_list(lrmd_event_data_t *op, struct ra_metadata_s *metadata,
xmlNode *update, const char *version)
{
char *list = NULL;
char *digest = NULL;
xmlNode *restart = NULL;
CRM_LOG_ASSERT(op->params != NULL);
if (op->interval_ms > 0) {
/* monitors are not reloadable */
return;
}
if (pcmk_is_set(metadata->ra_flags, ra_supports_reload_agent)) {
// Add parameters not marked reloadable to the "op-force-restart" list
list = build_parameter_list(op, metadata, ra_param_reloadable,
&restart);
} else if (pcmk_is_set(metadata->ra_flags, ra_supports_legacy_reload)) {
/* @COMPAT pre-OCF-1.1 resource agents
*
* Before OCF 1.1, Pacemaker abused "unique=0" to indicate
* reloadability. Add any parameters with unique="1" to the
* "op-force-restart" list.
*/
list = build_parameter_list(op, metadata, ra_param_unique, &restart);
} else {
// Resource does not support agent reloads
return;
}
digest = calculate_operation_digest(restart, version);
/* Add "op-force-restart" and "op-restart-digest" to indicate the resource supports reload,
* no matter if it actually supports any parameters with unique="1"). */
crm_xml_add(update, XML_LRM_ATTR_OP_RESTART, list? list: "");
crm_xml_add(update, XML_LRM_ATTR_RESTART_DIGEST, digest);
crm_trace("%s: %s, %s", op->rsc_id, digest, list);
crm_log_xml_trace(restart, "restart digest source");
free_xml(restart);
free(digest);
free(list);
}
static void
append_secure_list(lrmd_event_data_t *op, struct ra_metadata_s *metadata,
xmlNode *update, const char *version)
{
char *list = NULL;
char *digest = NULL;
xmlNode *secure = NULL;
CRM_LOG_ASSERT(op->params != NULL);
/*
* To keep XML_LRM_ATTR_OP_SECURE short, we want it to contain the
* secure parameters but XML_LRM_ATTR_SECURE_DIGEST to be based on
* the insecure ones
*/
list = build_parameter_list(op, metadata, ra_param_private, &secure);
if (list != NULL) {
digest = calculate_operation_digest(secure, version);
crm_xml_add(update, XML_LRM_ATTR_OP_SECURE, list);
crm_xml_add(update, XML_LRM_ATTR_SECURE_DIGEST, digest);
crm_trace("%s: %s, %s", op->rsc_id, digest, list);
crm_log_xml_trace(secure, "secure digest source");
} else {
crm_trace("%s: no secure parameters", op->rsc_id);
}
free_xml(secure);
free(digest);
free(list);
}
static gboolean
build_operation_update(xmlNode * parent, lrmd_rsc_info_t * rsc, lrmd_event_data_t * op,
const char *node_name, const char *src)
{
int target_rc = 0;
xmlNode *xml_op = NULL;
struct ra_metadata_s *metadata = NULL;
const char *caller_version = NULL;
lrm_state_t *lrm_state = NULL;
uint32_t metadata_source = controld_metadata_from_agent;
if (op == NULL) {
return FALSE;
}
target_rc = rsc_op_expected_rc(op);
/* there is a small risk in formerly mixed clusters that it will
* be sub-optimal.
*
* however with our upgrade policy, the update we send should
* still be completely supported anyway
*/
caller_version = g_hash_table_lookup(op->params, XML_ATTR_CRM_VERSION);
CRM_LOG_ASSERT(caller_version != NULL);
if(caller_version == NULL) {
caller_version = CRM_FEATURE_SET;
}
crm_trace("Building %s operation update with originator version: %s", op->rsc_id, caller_version);
xml_op = pcmk__create_history_xml(parent, op, caller_version, target_rc,
fsa_our_uname, src, LOG_DEBUG);
if (xml_op == NULL) {
return TRUE;
}
if ((rsc == NULL) || (op->params == NULL)
|| !crm_op_needs_metadata(rsc->standard, op->op_type)) {
crm_trace("No digests needed for %s action on %s (params=%p rsc=%p)",
op->op_type, op->rsc_id, op->params, rsc);
return TRUE;
}
lrm_state = lrm_state_find(node_name);
if (lrm_state == NULL) {
crm_warn("Cannot calculate digests for operation " PCMK__OP_FMT
" because we have no connection to executor for %s",
op->rsc_id, op->op_type, op->interval_ms, node_name);
return TRUE;
}
/* Getting meta-data from cache is OK unless this is a successful start
* action -- always refresh from the agent for those, in case the
* resource agent was updated.
*
* @TODO Only refresh the meta-data after starts if the agent actually
* changed (using something like inotify, or a hash or modification time of
* the agent executable).
*/
if ((op->op_status != PCMK_EXEC_DONE) || (op->rc != target_rc)
|| !pcmk__str_eq(op->op_type, CRMD_ACTION_START, pcmk__str_none)) {
metadata_source |= controld_metadata_from_cache;
}
metadata = controld_get_rsc_metadata(lrm_state, rsc, metadata_source);
if (metadata == NULL) {
return TRUE;
}
#if ENABLE_VERSIONED_ATTRS
crm_xml_add(xml_op, XML_ATTR_RA_VERSION, metadata->ra_version);
#endif
crm_trace("Including additional digests for %s:%s:%s",
rsc->standard, rsc->provider, rsc->type);
append_restart_list(op, metadata, xml_op, caller_version);
append_secure_list(op, metadata, xml_op, caller_version);
return TRUE;
}
static gboolean
is_rsc_active(lrm_state_t * lrm_state, const char *rsc_id)
{
rsc_history_t *entry = NULL;
entry = g_hash_table_lookup(lrm_state->resource_history, rsc_id);
if (entry == NULL || entry->last == NULL) {
return FALSE;
}
crm_trace("Processing %s: %s.%d=%d", rsc_id, entry->last->op_type,
entry->last->interval_ms, entry->last->rc);
if (entry->last->rc == PCMK_OCF_OK && pcmk__str_eq(entry->last->op_type, CRMD_ACTION_STOP, pcmk__str_casei)) {
return FALSE;
} else if (entry->last->rc == PCMK_OCF_OK
&& pcmk__str_eq(entry->last->op_type, CRMD_ACTION_MIGRATE, pcmk__str_casei)) {
// A stricter check is too complex ... leave that to the scheduler
return FALSE;
} else if (entry->last->rc == PCMK_OCF_NOT_RUNNING) {
return FALSE;
} else if ((entry->last->interval_ms == 0)
&& (entry->last->rc == PCMK_OCF_NOT_CONFIGURED)) {
/* Badly configured resources can't be reliably stopped */
return FALSE;
}
return TRUE;
}
static gboolean
build_active_RAs(lrm_state_t * lrm_state, xmlNode * rsc_list)
{
GHashTableIter iter;
rsc_history_t *entry = NULL;
g_hash_table_iter_init(&iter, lrm_state->resource_history);
while (g_hash_table_iter_next(&iter, NULL, (void **)&entry)) {
GList *gIter = NULL;
xmlNode *xml_rsc = create_xml_node(rsc_list, XML_LRM_TAG_RESOURCE);
crm_xml_add(xml_rsc, XML_ATTR_ID, entry->id);
crm_xml_add(xml_rsc, XML_ATTR_TYPE, entry->rsc.type);
crm_xml_add(xml_rsc, XML_AGENT_ATTR_CLASS, entry->rsc.standard);
crm_xml_add(xml_rsc, XML_AGENT_ATTR_PROVIDER, entry->rsc.provider);
if (entry->last && entry->last->params) {
const char *container = g_hash_table_lookup(entry->last->params, CRM_META"_"XML_RSC_ATTR_CONTAINER);
if (container) {
crm_trace("Resource %s is a part of container resource %s", entry->id, container);
crm_xml_add(xml_rsc, XML_RSC_ATTR_CONTAINER, container);
}
}
build_operation_update(xml_rsc, &(entry->rsc), entry->failed, lrm_state->node_name,
__func__);
build_operation_update(xml_rsc, &(entry->rsc), entry->last, lrm_state->node_name,
__func__);
for (gIter = entry->recurring_op_list; gIter != NULL; gIter = gIter->next) {
build_operation_update(xml_rsc, &(entry->rsc), gIter->data, lrm_state->node_name,
__func__);
}
}
return FALSE;
}
static xmlNode *
do_lrm_query_internal(lrm_state_t *lrm_state, int update_flags)
{
xmlNode *xml_state = NULL;
xmlNode *xml_data = NULL;
xmlNode *rsc_list = NULL;
crm_node_t *peer = NULL;
peer = crm_get_peer_full(0, lrm_state->node_name, CRM_GET_PEER_ANY);
CRM_CHECK(peer != NULL, return NULL);
xml_state = create_node_state_update(peer, update_flags, NULL,
__func__);
if (xml_state == NULL) {
return NULL;
}
xml_data = create_xml_node(xml_state, XML_CIB_TAG_LRM);
crm_xml_add(xml_data, XML_ATTR_ID, peer->uuid);
rsc_list = create_xml_node(xml_data, XML_LRM_TAG_RESOURCES);
/* Build a list of active (not always running) resources */
build_active_RAs(lrm_state, rsc_list);
crm_log_xml_trace(xml_state, "Current executor state");
return xml_state;
}
xmlNode *
controld_query_executor_state(const char *node_name)
{
lrm_state_t *lrm_state = lrm_state_find(node_name);
if (!lrm_state) {
crm_err("Could not find executor state for node %s", node_name);
return NULL;
}
return do_lrm_query_internal(lrm_state,
node_update_cluster|node_update_peer);
}
/*!
* \internal
* \brief Map standard Pacemaker return code to operation status and OCF code
*
* \param[out] event Executor event whose status and return code should be set
* \param[in] rc Standard Pacemaker return code
*/
void
controld_rc2event(lrmd_event_data_t *event, int rc)
{
+ /* This is called for cleanup requests from controller peers/clients, not
+ * for resource actions, so no exit reason is needed.
+ */
switch (rc) {
case pcmk_rc_ok:
lrmd__set_result(event, PCMK_OCF_OK, PCMK_EXEC_DONE, NULL);
break;
case EACCES:
lrmd__set_result(event, PCMK_OCF_INSUFFICIENT_PRIV,
PCMK_EXEC_ERROR, NULL);
break;
default:
lrmd__set_result(event, PCMK_OCF_UNKNOWN_ERROR, PCMK_EXEC_ERROR,
NULL);
break;
}
}
/*!
* \internal
* \brief Trigger a new transition after CIB status was deleted
*
* If a CIB status delete was not expected (as part of the transition graph),
* trigger a new transition by updating the (arbitrary) "last-lrm-refresh"
* cluster property.
*
* \param[in] from_sys IPC name that requested the delete
* \param[in] rsc_id Resource whose status was deleted (for logging only)
*/
void
controld_trigger_delete_refresh(const char *from_sys, const char *rsc_id)
{
if (!pcmk__str_eq(from_sys, CRM_SYSTEM_TENGINE, pcmk__str_casei)) {
char *now_s = crm_strdup_printf("%lld", (long long) time(NULL));
crm_debug("Triggering a refresh after %s cleaned %s", from_sys, rsc_id);
update_attr_delegate(fsa_cib_conn, cib_none, XML_CIB_TAG_CRMCONFIG,
NULL, NULL, NULL, NULL, "last-lrm-refresh", now_s,
FALSE, NULL, NULL);
free(now_s);
}
}
static void
notify_deleted(lrm_state_t * lrm_state, ha_msg_input_t * input, const char *rsc_id, int rc)
{
lrmd_event_data_t *op = NULL;
const char *from_sys = crm_element_value(input->msg, F_CRM_SYS_FROM);
const char *from_host = crm_element_value(input->msg, F_CRM_HOST_FROM);
crm_info("Notifying %s on %s that %s was%s deleted",
from_sys, (from_host? from_host : "localhost"), rsc_id,
((rc == pcmk_ok)? "" : " not"));
op = construct_op(lrm_state, input->xml, rsc_id, CRMD_ACTION_DELETE);
controld_rc2event(op, pcmk_legacy2rc(rc));
controld_ack_event_directly(from_host, from_sys, NULL, op, rsc_id);
lrmd_free_event(op);
controld_trigger_delete_refresh(from_sys, rsc_id);
}
static gboolean
lrm_remove_deleted_rsc(gpointer key, gpointer value, gpointer user_data)
{
struct delete_event_s *event = user_data;
struct pending_deletion_op_s *op = value;
if (pcmk__str_eq(event->rsc, op->rsc, pcmk__str_none)) {
notify_deleted(event->lrm_state, op->input, event->rsc, event->rc);
return TRUE;
}
return FALSE;
}
static gboolean
lrm_remove_deleted_op(gpointer key, gpointer value, gpointer user_data)
{
const char *rsc = user_data;
active_op_t *pending = value;
if (pcmk__str_eq(rsc, pending->rsc_id, pcmk__str_none)) {
crm_info("Removing op %s:%d for deleted resource %s",
pending->op_key, pending->call_id, rsc);
return TRUE;
}
return FALSE;
}
static void
delete_rsc_entry(lrm_state_t * lrm_state, ha_msg_input_t * input, const char *rsc_id,
GHashTableIter * rsc_gIter, int rc, const char *user_name)
{
struct delete_event_s event;
CRM_CHECK(rsc_id != NULL, return);
if (rc == pcmk_ok) {
char *rsc_id_copy = strdup(rsc_id);
if (rsc_gIter) {
g_hash_table_iter_remove(rsc_gIter);
} else {
g_hash_table_remove(lrm_state->resource_history, rsc_id_copy);
}
controld_delete_resource_history(rsc_id_copy, lrm_state->node_name,
user_name, crmd_cib_smart_opt());
g_hash_table_foreach_remove(lrm_state->pending_ops, lrm_remove_deleted_op, rsc_id_copy);
free(rsc_id_copy);
}
if (input) {
notify_deleted(lrm_state, input, rsc_id, rc);
}
event.rc = rc;
event.rsc = rsc_id;
event.lrm_state = lrm_state;
g_hash_table_foreach_remove(lrm_state->deletion_ops, lrm_remove_deleted_rsc, &event);
}
/*!
* \internal
* \brief Erase an LRM history entry from the CIB, given the operation data
*
* \param[in] lrm_state LRM state of the desired node
* \param[in] op Operation whose history should be deleted
*/
static void
erase_lrm_history_by_op(lrm_state_t *lrm_state, lrmd_event_data_t *op)
{
xmlNode *xml_top = NULL;
CRM_CHECK(op != NULL, return);
xml_top = create_xml_node(NULL, XML_LRM_TAG_RSC_OP);
crm_xml_add_int(xml_top, XML_LRM_ATTR_CALLID, op->call_id);
crm_xml_add(xml_top, XML_ATTR_TRANSITION_KEY, op->user_data);
if (op->interval_ms > 0) {
char *op_id = pcmk__op_key(op->rsc_id, op->op_type, op->interval_ms);
/* Avoid deleting last_failure too (if it was a result of this recurring op failing) */
crm_xml_add(xml_top, XML_ATTR_ID, op_id);
free(op_id);
}
crm_debug("Erasing resource operation history for " PCMK__OP_FMT " (call=%d)",
op->rsc_id, op->op_type, op->interval_ms, op->call_id);
fsa_cib_conn->cmds->remove(fsa_cib_conn, XML_CIB_TAG_STATUS, xml_top,
cib_quorum_override);
crm_log_xml_trace(xml_top, "op:cancel");
free_xml(xml_top);
}
/* Define xpath to find LRM resource history entry by node and resource */
#define XPATH_HISTORY \
"/" XML_TAG_CIB "/" XML_CIB_TAG_STATUS \
"/" XML_CIB_TAG_STATE "[@" XML_ATTR_UNAME "='%s']" \
"/" XML_CIB_TAG_LRM "/" XML_LRM_TAG_RESOURCES \
"/" XML_LRM_TAG_RESOURCE "[@" XML_ATTR_ID "='%s']" \
"/" XML_LRM_TAG_RSC_OP
/* ... and also by operation key */
#define XPATH_HISTORY_ID XPATH_HISTORY \
"[@" XML_ATTR_ID "='%s']"
/* ... and also by operation key and operation call ID */
#define XPATH_HISTORY_CALL XPATH_HISTORY \
"[@" XML_ATTR_ID "='%s' and @" XML_LRM_ATTR_CALLID "='%d']"
/* ... and also by operation key and original operation key */
#define XPATH_HISTORY_ORIG XPATH_HISTORY \
"[@" XML_ATTR_ID "='%s' and @" XML_LRM_ATTR_TASK_KEY "='%s']"
/*!
* \internal
* \brief Erase an LRM history entry from the CIB, given operation identifiers
*
* \param[in] lrm_state LRM state of the node to clear history for
* \param[in] rsc_id Name of resource to clear history for
* \param[in] key Operation key of operation to clear history for
* \param[in] orig_op If specified, delete only if it has this original op
* \param[in] call_id If specified, delete entry only if it has this call ID
*/
static void
erase_lrm_history_by_id(lrm_state_t *lrm_state, const char *rsc_id,
const char *key, const char *orig_op, int call_id)
{
char *op_xpath = NULL;
CRM_CHECK((rsc_id != NULL) && (key != NULL), return);
if (call_id > 0) {
op_xpath = crm_strdup_printf(XPATH_HISTORY_CALL,
lrm_state->node_name, rsc_id, key,
call_id);
} else if (orig_op) {
op_xpath = crm_strdup_printf(XPATH_HISTORY_ORIG,
lrm_state->node_name, rsc_id, key,
orig_op);
} else {
op_xpath = crm_strdup_printf(XPATH_HISTORY_ID,
lrm_state->node_name, rsc_id, key);
}
crm_debug("Erasing resource operation history for %s on %s (call=%d)",
key, rsc_id, call_id);
fsa_cib_conn->cmds->remove(fsa_cib_conn, op_xpath, NULL,
cib_quorum_override | cib_xpath);
free(op_xpath);
}
static inline gboolean
last_failed_matches_op(rsc_history_t *entry, const char *op, guint interval_ms)
{
if (entry == NULL) {
return FALSE;
}
if (op == NULL) {
return TRUE;
}
return (pcmk__str_eq(op, entry->failed->op_type, pcmk__str_casei)
&& (interval_ms == entry->failed->interval_ms));
}
/*!
* \internal
* \brief Clear a resource's last failure
*
* Erase a resource's last failure on a particular node from both the
* LRM resource history in the CIB, and the resource history remembered
* for the LRM state.
*
* \param[in] rsc_id Resource name
* \param[in] node_name Node name
* \param[in] operation If specified, only clear if matching this operation
* \param[in] interval_ms If operation is specified, it has this interval
*/
void
lrm_clear_last_failure(const char *rsc_id, const char *node_name,
const char *operation, guint interval_ms)
{
char *op_key = NULL;
char *orig_op_key = NULL;
lrm_state_t *lrm_state = NULL;
lrm_state = lrm_state_find(node_name);
if (lrm_state == NULL) {
return;
}
/* Erase from CIB */
op_key = pcmk__op_key(rsc_id, "last_failure", 0);
if (operation) {
orig_op_key = pcmk__op_key(rsc_id, operation, interval_ms);
}
erase_lrm_history_by_id(lrm_state, rsc_id, op_key, orig_op_key, 0);
free(op_key);
free(orig_op_key);
/* Remove from memory */
if (lrm_state->resource_history) {
rsc_history_t *entry = g_hash_table_lookup(lrm_state->resource_history,
rsc_id);
if (last_failed_matches_op(entry, operation, interval_ms)) {
lrmd_free_event(entry->failed);
entry->failed = NULL;
}
}
}
/* Returns: gboolean - cancellation is in progress */
static gboolean
cancel_op(lrm_state_t * lrm_state, const char *rsc_id, const char *key, int op, gboolean remove)
{
int rc = pcmk_ok;
char *local_key = NULL;
active_op_t *pending = NULL;
CRM_CHECK(op != 0, return FALSE);
CRM_CHECK(rsc_id != NULL, return FALSE);
if (key == NULL) {
local_key = make_stop_id(rsc_id, op);
key = local_key;
}
pending = g_hash_table_lookup(lrm_state->pending_ops, key);
if (pending) {
if (remove && !pcmk_is_set(pending->flags, active_op_remove)) {
controld_set_active_op_flags(pending, active_op_remove);
crm_debug("Scheduling %s for removal", key);
}
if (pcmk_is_set(pending->flags, active_op_cancelled)) {
crm_debug("Operation %s already cancelled", key);
free(local_key);
return FALSE;
}
controld_set_active_op_flags(pending, active_op_cancelled);
} else {
crm_info("No pending op found for %s", key);
free(local_key);
return FALSE;
}
crm_debug("Cancelling op %d for %s (%s)", op, rsc_id, key);
rc = lrm_state_cancel(lrm_state, pending->rsc_id, pending->op_type,
pending->interval_ms);
if (rc == pcmk_ok) {
crm_debug("Op %d for %s (%s): cancelled", op, rsc_id, key);
free(local_key);
return TRUE;
}
crm_debug("Op %d for %s (%s): Nothing to cancel", op, rsc_id, key);
/* The caller needs to make sure the entry is
* removed from the pending_ops list
*
* Usually by returning TRUE inside the worker function
* supplied to g_hash_table_foreach_remove()
*
* Not removing the entry from pending_ops will block
* the node from shutting down
*/
free(local_key);
return FALSE;
}
struct cancel_data {
gboolean done;
gboolean remove;
const char *key;
lrmd_rsc_info_t *rsc;
lrm_state_t *lrm_state;
};
static gboolean
cancel_action_by_key(gpointer key, gpointer value, gpointer user_data)
{
gboolean remove = FALSE;
struct cancel_data *data = user_data;
active_op_t *op = value;
if (pcmk__str_eq(op->op_key, data->key, pcmk__str_none)) {
data->done = TRUE;
remove = !cancel_op(data->lrm_state, data->rsc->id, key, op->call_id, data->remove);
}
return remove;
}
static gboolean
cancel_op_key(lrm_state_t * lrm_state, lrmd_rsc_info_t * rsc, const char *key, gboolean remove)
{
guint removed = 0;
struct cancel_data data;
CRM_CHECK(rsc != NULL, return FALSE);
CRM_CHECK(key != NULL, return FALSE);
data.key = key;
data.rsc = rsc;
data.done = FALSE;
data.remove = remove;
data.lrm_state = lrm_state;
removed = g_hash_table_foreach_remove(lrm_state->pending_ops, cancel_action_by_key, &data);
crm_trace("Removed %u op cache entries, new size: %u",
removed, g_hash_table_size(lrm_state->pending_ops));
return data.done;
}
/*!
* \internal
* \brief Retrieve resource information from LRM
*
* \param[in] lrm_state LRM connection to use
* \param[in] rsc_xml XML containing resource configuration
* \param[in] do_create If true, register resource with LRM if not already
* \param[out] rsc_info Where to store resource information obtained from LRM
*
* \retval pcmk_ok Success (and rsc_info holds newly allocated result)
* \retval -EINVAL Required information is missing from arguments
* \retval -ENOTCONN No active connection to LRM
* \retval -ENODEV Resource not found
* \retval -errno Error communicating with executor when registering resource
*
* \note Caller is responsible for freeing result on success.
*/
static int
get_lrm_resource(lrm_state_t *lrm_state, xmlNode *rsc_xml, gboolean do_create,
lrmd_rsc_info_t **rsc_info)
{
const char *id = ID(rsc_xml);
CRM_CHECK(lrm_state && rsc_xml && rsc_info, return -EINVAL);
CRM_CHECK(id, return -EINVAL);
if (lrm_state_is_connected(lrm_state) == FALSE) {
return -ENOTCONN;
}
crm_trace("Retrieving resource information for %s from the executor", id);
*rsc_info = lrm_state_get_rsc_info(lrm_state, id, 0);
// If resource isn't known by ID, try clone name, if provided
if (!*rsc_info) {
const char *long_id = crm_element_value(rsc_xml, XML_ATTR_ID_LONG);
if (long_id) {
*rsc_info = lrm_state_get_rsc_info(lrm_state, long_id, 0);
}
}
if ((*rsc_info == NULL) && do_create) {
const char *class = crm_element_value(rsc_xml, XML_AGENT_ATTR_CLASS);
const char *provider = crm_element_value(rsc_xml, XML_AGENT_ATTR_PROVIDER);
const char *type = crm_element_value(rsc_xml, XML_ATTR_TYPE);
int rc;
crm_trace("Registering resource %s with the executor", id);
rc = lrm_state_register_rsc(lrm_state, id, class, provider, type,
lrmd_opt_drop_recurring);
if (rc != pcmk_ok) {
fsa_data_t *msg_data = NULL;
crm_err("Could not register resource %s with the executor on %s: %s "
CRM_XS " rc=%d",
id, lrm_state->node_name, pcmk_strerror(rc), rc);
/* Register this as an internal error if this involves the local
* executor. Otherwise, we're likely dealing with an unresponsive
* remote node, which is not an FSA failure.
*/
if (lrm_state_is_local(lrm_state) == TRUE) {
register_fsa_error(C_FSA_INTERNAL, I_FAIL, NULL);
}
return rc;
}
*rsc_info = lrm_state_get_rsc_info(lrm_state, id, 0);
}
return *rsc_info? pcmk_ok : -ENODEV;
}
static void
delete_resource(lrm_state_t * lrm_state,
const char *id,
lrmd_rsc_info_t * rsc,
GHashTableIter * gIter,
const char *sys,
const char *user,
ha_msg_input_t * request,
gboolean unregister)
{
int rc = pcmk_ok;
crm_info("Removing resource %s from executor for %s%s%s",
id, sys, (user? " as " : ""), (user? user : ""));
if (rsc && unregister) {
rc = lrm_state_unregister_rsc(lrm_state, id, 0);
}
if (rc == pcmk_ok) {
crm_trace("Resource %s deleted from executor", id);
} else if (rc == -EINPROGRESS) {
crm_info("Deletion of resource '%s' from executor is pending", id);
if (request) {
struct pending_deletion_op_s *op = NULL;
char *ref = crm_element_value_copy(request->msg, XML_ATTR_REFERENCE);
op = calloc(1, sizeof(struct pending_deletion_op_s));
op->rsc = strdup(rsc->id);
op->input = copy_ha_msg_input(request);
g_hash_table_insert(lrm_state->deletion_ops, ref, op);
}
return;
} else {
crm_warn("Could not delete '%s' from executor for %s%s%s: %s "
CRM_XS " rc=%d", id, sys, (user? " as " : ""),
(user? user : ""), pcmk_strerror(rc), rc);
}
delete_rsc_entry(lrm_state, request, id, gIter, rc, user);
}
static int
get_fake_call_id(lrm_state_t *lrm_state, const char *rsc_id)
{
int call_id = 999999999;
rsc_history_t *entry = NULL;
if(lrm_state) {
entry = g_hash_table_lookup(lrm_state->resource_history, rsc_id);
}
/* Make sure the call id is greater than the last successful operation,
* otherwise the failure will not result in a possible recovery of the resource
* as it could appear the failure occurred before the successful start */
if (entry) {
call_id = entry->last_callid + 1;
}
if (call_id < 0) {
call_id = 1;
}
return call_id;
}
static void
fake_op_status(lrm_state_t *lrm_state, lrmd_event_data_t *op, int op_status,
enum ocf_exitcode op_exitcode)
{
op->call_id = get_fake_call_id(lrm_state, op->rsc_id);
op->t_run = time(NULL);
op->t_rcchange = op->t_run;
lrmd__set_result(op, op_exitcode, op_status, NULL);
}
static void
force_reprobe(lrm_state_t *lrm_state, const char *from_sys,
const char *from_host, const char *user_name,
gboolean is_remote_node)
{
GHashTableIter gIter;
rsc_history_t *entry = NULL;
crm_info("Clearing resource history on node %s", lrm_state->node_name);
g_hash_table_iter_init(&gIter, lrm_state->resource_history);
while (g_hash_table_iter_next(&gIter, NULL, (void **)&entry)) {
/* only unregister the resource during a reprobe if it is not a remote connection
* resource. otherwise unregistering the connection will terminate remote-node
* membership */
gboolean unregister = TRUE;
if (is_remote_lrmd_ra(NULL, NULL, entry->id)) {
lrm_state_t *remote_lrm_state = lrm_state_find(entry->id);
if (remote_lrm_state) {
/* when forcing a reprobe, make sure to clear remote node before
* clearing the remote node's connection resource */
force_reprobe(remote_lrm_state, from_sys, from_host, user_name, TRUE);
}
unregister = FALSE;
}
delete_resource(lrm_state, entry->id, &entry->rsc, &gIter, from_sys,
user_name, NULL, unregister);
}
/* Now delete the copy in the CIB */
controld_delete_node_state(lrm_state->node_name, controld_section_lrm,
cib_scope_local);
/* Finally, _delete_ the value in pacemaker-attrd -- setting it to FALSE
* would result in the scheduler sending us back here again
*/
update_attrd(lrm_state->node_name, CRM_OP_PROBED, NULL, user_name, is_remote_node);
}
/*!
* \internal
* \brief Fail a requested action without actually executing it
*
* For an action that can't be executed, process it similarly to an actual
* execution result, with specified error status (except for notify actions,
* which will always be treated as successful).
*
* \param[in] lrm_state Executor connection that action is for
* \param[in] action Action XML from request
* \param[in] rc Desired return code to use
* \param[in] op_status Desired operation status to use
*/
static void
synthesize_lrmd_failure(lrm_state_t *lrm_state, xmlNode *action,
int op_status, enum ocf_exitcode rc)
{
lrmd_event_data_t *op = NULL;
const char *operation = crm_element_value(action, XML_LRM_ATTR_TASK);
const char *target_node = crm_element_value(action, XML_LRM_ATTR_TARGET);
xmlNode *xml_rsc = find_xml_node(action, XML_CIB_TAG_RESOURCE, TRUE);
if ((xml_rsc == NULL) || (ID(xml_rsc) == NULL)) {
/* @TODO Should we do something else, like direct ack? */
crm_info("Can't fake %s failure (%d) on %s without resource configuration",
crm_element_value(action, XML_LRM_ATTR_TASK_KEY), rc,
target_node);
return;
} else if(operation == NULL) {
/* This probably came from crm_resource -C, nothing to do */
crm_info("Can't fake %s failure (%d) on %s without operation",
ID(xml_rsc), rc, target_node);
return;
}
op = construct_op(lrm_state, action, ID(xml_rsc), operation);
if (pcmk__str_eq(operation, RSC_NOTIFY, pcmk__str_casei)) { // Notifications can't fail
fake_op_status(lrm_state, op, PCMK_EXEC_DONE, PCMK_OCF_OK);
} else {
fake_op_status(lrm_state, op, op_status, rc);
}
crm_info("Faking " PCMK__OP_FMT " result (%d) on %s",
op->rsc_id, op->op_type, op->interval_ms, op->rc, target_node);
// Process the result as if it came from the LRM
process_lrm_event(lrm_state, op, NULL, action);
lrmd_free_event(op);
}
/*!
* \internal
* \brief Get target of an LRM operation
*
* \param[in] xml LRM operation data XML
*
* \return LRM operation target node name (local node or Pacemaker Remote node)
*/
static const char *
lrm_op_target(xmlNode *xml)
{
const char *target = NULL;
if (xml) {
target = crm_element_value(xml, XML_LRM_ATTR_TARGET);
}
if (target == NULL) {
target = fsa_our_uname;
}
return target;
}
static void
fail_lrm_resource(xmlNode *xml, lrm_state_t *lrm_state, const char *user_name,
const char *from_host, const char *from_sys)
{
lrmd_event_data_t *op = NULL;
lrmd_rsc_info_t *rsc = NULL;
xmlNode *xml_rsc = find_xml_node(xml, XML_CIB_TAG_RESOURCE, TRUE);
CRM_CHECK(xml_rsc != NULL, return);
/* The executor simply executes operations and reports the results, without
* any concept of success or failure, so to fail a resource, we must fake
* what a failure looks like.
*
* To do this, we create a fake executor operation event for the resource,
* and pass that event to the executor client callback so it will be
* processed as if it came from the executor.
*/
op = construct_op(lrm_state, xml, ID(xml_rsc), "asyncmon");
fake_op_status(lrm_state, op, PCMK_EXEC_DONE, PCMK_OCF_UNKNOWN_ERROR);
free((char*) op->user_data);
op->user_data = NULL;
op->interval_ms = 0;
if (user_name && !pcmk__is_privileged(user_name)) {
crm_err("%s does not have permission to fail %s", user_name, ID(xml_rsc));
controld_ack_event_directly(from_host, from_sys, NULL, op, ID(xml_rsc));
lrmd_free_event(op);
return;
}
if (get_lrm_resource(lrm_state, xml_rsc, TRUE, &rsc) == pcmk_ok) {
crm_info("Failing resource %s...", rsc->id);
lrmd__set_result(op, PCMK_OCF_UNKNOWN_ERROR, PCMK_EXEC_DONE,
"Simulated failure");
process_lrm_event(lrm_state, op, NULL, xml);
op->rc = PCMK_OCF_OK; // The request to fail the resource succeeded
lrmd_free_rsc_info(rsc);
} else {
crm_info("Cannot find/create resource in order to fail it...");
crm_log_xml_warn(xml, "bad input");
}
controld_ack_event_directly(from_host, from_sys, NULL, op, ID(xml_rsc));
lrmd_free_event(op);
}
static void
handle_refresh_op(lrm_state_t *lrm_state, const char *user_name,
const char *from_host, const char *from_sys)
{
int rc = pcmk_ok;
xmlNode *fragment = do_lrm_query_internal(lrm_state, node_update_all);
fsa_cib_update(XML_CIB_TAG_STATUS, fragment, cib_quorum_override, rc, user_name);
crm_info("Forced a local resource history refresh: call=%d", rc);
if (!pcmk__str_eq(CRM_SYSTEM_CRMD, from_sys, pcmk__str_casei)) {
xmlNode *reply = create_request(CRM_OP_INVOKE_LRM, fragment, from_host,
from_sys, CRM_SYSTEM_LRMD,
fsa_our_uuid);
crm_debug("ACK'ing refresh from %s (%s)", from_sys, from_host);
if (relay_message(reply, TRUE) == FALSE) {
crm_log_xml_err(reply, "Unable to route reply");
}
free_xml(reply);
}
free_xml(fragment);
}
static void
handle_query_op(xmlNode *msg, lrm_state_t *lrm_state)
{
xmlNode *data = do_lrm_query_internal(lrm_state, node_update_all);
xmlNode *reply = create_reply(msg, data);
if (relay_message(reply, TRUE) == FALSE) {
crm_err("Unable to route reply");
crm_log_xml_err(reply, "reply");
}
free_xml(reply);
free_xml(data);
}
static void
handle_reprobe_op(lrm_state_t *lrm_state, const char *from_sys,
const char *from_host, const char *user_name,
gboolean is_remote_node)
{
crm_notice("Forcing the status of all resources to be redetected");
force_reprobe(lrm_state, from_sys, from_host, user_name, is_remote_node);
if (!pcmk__strcase_any_of(from_sys, CRM_SYSTEM_PENGINE, CRM_SYSTEM_TENGINE, NULL)) {
xmlNode *reply = create_request(CRM_OP_INVOKE_LRM, NULL, from_host,
from_sys, CRM_SYSTEM_LRMD,
fsa_our_uuid);
crm_debug("ACK'ing re-probe from %s (%s)", from_sys, from_host);
if (relay_message(reply, TRUE) == FALSE) {
crm_log_xml_err(reply, "Unable to route reply");
}
free_xml(reply);
}
}
static bool do_lrm_cancel(ha_msg_input_t *input, lrm_state_t *lrm_state,
lrmd_rsc_info_t *rsc, const char *from_host, const char *from_sys)
{
char *op_key = NULL;
char *meta_key = NULL;
int call = 0;
const char *call_id = NULL;
const char *op_task = NULL;
guint interval_ms = 0;
gboolean in_progress = FALSE;
xmlNode *params = find_xml_node(input->xml, XML_TAG_ATTRS, TRUE);
CRM_CHECK(params != NULL, return FALSE);
meta_key = crm_meta_name(XML_LRM_ATTR_TASK);
op_task = crm_element_value(params, meta_key);
free(meta_key);
CRM_CHECK(op_task != NULL, return FALSE);
meta_key = crm_meta_name(XML_LRM_ATTR_INTERVAL_MS);
if (crm_element_value_ms(params, meta_key, &interval_ms) != pcmk_ok) {
free(meta_key);
return FALSE;
}
free(meta_key);
op_key = pcmk__op_key(rsc->id, op_task, interval_ms);
meta_key = crm_meta_name(XML_LRM_ATTR_CALLID);
call_id = crm_element_value(params, meta_key);
free(meta_key);
crm_debug("Scheduler requested op %s (call=%s) be cancelled",
op_key, (call_id? call_id : "NA"));
pcmk__scan_min_int(call_id, &call, 0);
if (call == 0) {
// Normal case when the scheduler cancels a recurring op
in_progress = cancel_op_key(lrm_state, rsc, op_key, TRUE);
} else {
// Normal case when the scheduler cancels an orphan op
in_progress = cancel_op(lrm_state, rsc->id, NULL, call, TRUE);
}
// Acknowledge cancellation operation if for a remote connection resource
if (!in_progress || is_remote_lrmd_ra(NULL, NULL, rsc->id)) {
char *op_id = make_stop_id(rsc->id, call);
if (is_remote_lrmd_ra(NULL, NULL, rsc->id) == FALSE) {
crm_info("Nothing known about operation %d for %s", call, op_key);
}
erase_lrm_history_by_id(lrm_state, rsc->id, op_key, NULL, call);
send_task_ok_ack(lrm_state, input, rsc->id, rsc, op_task,
from_host, from_sys);
/* needed at least for cancellation of a remote operation */
g_hash_table_remove(lrm_state->pending_ops, op_id);
free(op_id);
} else {
/* No ack is needed since abcdaa8, but peers with older versions
* in a rolling upgrade need one. We didn't bump the feature set
* at that commit, so we can only compare against the previous
* CRM version (3.0.8). If any peers have feature set 3.0.9 but
* not abcdaa8, they will time out waiting for the ack (no
* released versions of Pacemaker are affected).
*/
const char *peer_version = crm_element_value(params, XML_ATTR_CRM_VERSION);
if (compare_version(peer_version, "3.0.8") <= 0) {
crm_info("Sending compatibility ack for %s cancellation to %s (CRM version %s)",
op_key, from_host, peer_version);
send_task_ok_ack(lrm_state, input, rsc->id, rsc, op_task,
from_host, from_sys);
}
}
free(op_key);
return TRUE;
}
static void
do_lrm_delete(ha_msg_input_t *input, lrm_state_t *lrm_state,
lrmd_rsc_info_t *rsc, const char *from_sys, const char *from_host,
bool crm_rsc_delete, const char *user_name)
{
gboolean unregister = TRUE;
int cib_rc = controld_delete_resource_history(rsc->id, lrm_state->node_name,
user_name,
cib_dryrun|cib_sync_call);
if (cib_rc != pcmk_rc_ok) {
lrmd_event_data_t *op = NULL;
op = construct_op(lrm_state, input->xml, rsc->id, CRMD_ACTION_DELETE);
+ /* These are resource clean-ups, not actions, so no exit reason is
+ * needed.
+ */
if (cib_rc == EACCES) {
lrmd__set_result(op, PCMK_OCF_INSUFFICIENT_PRIV, PCMK_EXEC_ERROR,
NULL);
} else {
lrmd__set_result(op, PCMK_OCF_UNKNOWN_ERROR, PCMK_EXEC_ERROR,
NULL);
}
controld_ack_event_directly(from_host, from_sys, NULL, op, rsc->id);
lrmd_free_event(op);
return;
}
if (crm_rsc_delete && is_remote_lrmd_ra(NULL, NULL, rsc->id)) {
unregister = FALSE;
}
delete_resource(lrm_state, rsc->id, rsc, NULL, from_sys,
user_name, input, unregister);
}
/* A_LRM_INVOKE */
void
do_lrm_invoke(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)
{
lrm_state_t *lrm_state = NULL;
const char *crm_op = NULL;
const char *from_sys = NULL;
const char *from_host = NULL;
const char *operation = NULL;
ha_msg_input_t *input = fsa_typed_data(fsa_dt_ha_msg);
const char *user_name = NULL;
const char *target_node = NULL;
gboolean is_remote_node = FALSE;
bool crm_rsc_delete = FALSE;
target_node = lrm_op_target(input->xml);
is_remote_node = !pcmk__str_eq(target_node, fsa_our_uname,
pcmk__str_casei);
lrm_state = lrm_state_find(target_node);
if ((lrm_state == NULL) && is_remote_node) {
crm_err("Failing action because local node has never had connection to remote node %s",
target_node);
synthesize_lrmd_failure(NULL, input->xml, PCMK_EXEC_NOT_CONNECTED,
PCMK_OCF_UNKNOWN_ERROR);
return;
}
CRM_ASSERT(lrm_state != NULL);
user_name = pcmk__update_acl_user(input->msg, F_CRM_USER, NULL);
crm_op = crm_element_value(input->msg, F_CRM_TASK);
from_sys = crm_element_value(input->msg, F_CRM_SYS_FROM);
if (!pcmk__str_eq(from_sys, CRM_SYSTEM_TENGINE, pcmk__str_casei)) {
from_host = crm_element_value(input->msg, F_CRM_HOST_FROM);
}
crm_trace("Executor %s command from %s as user %s",
crm_op, from_sys, user_name);
if (pcmk__str_eq(crm_op, CRM_OP_LRM_DELETE, pcmk__str_casei)) {
if (!pcmk__str_eq(from_sys, CRM_SYSTEM_TENGINE, pcmk__str_casei)) {
crm_rsc_delete = TRUE; // from crm_resource
}
operation = CRMD_ACTION_DELETE;
} else if (pcmk__str_eq(crm_op, CRM_OP_LRM_FAIL, pcmk__str_casei)) {
fail_lrm_resource(input->xml, lrm_state, user_name, from_host,
from_sys);
return;
} else if (input->xml != NULL) {
operation = crm_element_value(input->xml, XML_LRM_ATTR_TASK);
}
if (pcmk__str_eq(crm_op, CRM_OP_LRM_REFRESH, pcmk__str_casei)) {
handle_refresh_op(lrm_state, user_name, from_host, from_sys);
} else if (pcmk__str_eq(crm_op, CRM_OP_LRM_QUERY, pcmk__str_casei)) {
handle_query_op(input->msg, lrm_state);
} else if (pcmk__str_eq(operation, CRM_OP_PROBED, pcmk__str_casei)) {
update_attrd(lrm_state->node_name, CRM_OP_PROBED, XML_BOOLEAN_TRUE,
user_name, is_remote_node);
} else if (pcmk__str_eq(crm_op, CRM_OP_REPROBE, pcmk__str_casei)
|| pcmk__str_eq(operation, CRM_OP_REPROBE, pcmk__str_casei)) {
handle_reprobe_op(lrm_state, from_sys, from_host, user_name,
is_remote_node);
} else if (operation != NULL) {
lrmd_rsc_info_t *rsc = NULL;
xmlNode *xml_rsc = find_xml_node(input->xml, XML_CIB_TAG_RESOURCE, TRUE);
gboolean create_rsc = !pcmk__str_eq(operation, CRMD_ACTION_DELETE,
pcmk__str_casei);
int rc;
// We can't return anything meaningful without a resource ID
CRM_CHECK(xml_rsc && ID(xml_rsc), return);
rc = get_lrm_resource(lrm_state, xml_rsc, create_rsc, &rsc);
if (rc == -ENOTCONN) {
synthesize_lrmd_failure(lrm_state, input->xml,
PCMK_EXEC_NOT_CONNECTED,
PCMK_OCF_UNKNOWN_ERROR);
return;
} else if ((rc < 0) && !create_rsc) {
/* Delete of malformed or nonexistent resource
* (deleting something that does not exist is a success)
*/
crm_notice("Not registering resource '%s' for a %s event "
CRM_XS " get-rc=%d (%s) transition-key=%s",
ID(xml_rsc), operation,
rc, pcmk_strerror(rc), ID(input->xml));
delete_rsc_entry(lrm_state, input, ID(xml_rsc), NULL, pcmk_ok,
user_name);
return;
} else if (rc == -EINVAL) {
// Resource operation on malformed resource
crm_err("Invalid resource definition for %s", ID(xml_rsc));
crm_log_xml_warn(input->msg, "invalid resource");
synthesize_lrmd_failure(lrm_state, input->xml, PCMK_EXEC_ERROR,
PCMK_OCF_NOT_CONFIGURED); // fatal error
return;
} else if (rc < 0) {
// Error communicating with the executor
crm_err("Could not register resource '%s' with executor: %s "
CRM_XS " rc=%d",
ID(xml_rsc), pcmk_strerror(rc), rc);
crm_log_xml_warn(input->msg, "failed registration");
synthesize_lrmd_failure(lrm_state, input->xml, PCMK_EXEC_ERROR,
PCMK_OCF_INVALID_PARAM); // hard error
return;
}
if (pcmk__str_eq(operation, CRMD_ACTION_CANCEL, pcmk__str_casei)) {
if (!do_lrm_cancel(input, lrm_state, rsc, from_host, from_sys)) {
crm_log_xml_warn(input->xml, "Bad command");
}
} else if (pcmk__str_eq(operation, CRMD_ACTION_DELETE, pcmk__str_casei)) {
do_lrm_delete(input, lrm_state, rsc, from_sys, from_host,
crm_rsc_delete, user_name);
} else if (pcmk__str_any_of(operation, CRMD_ACTION_RELOAD,
CRMD_ACTION_RELOAD_AGENT, NULL)) {
/* Pre-2.1.0 DCs will schedule reload actions only, and 2.1.0+ DCs
* will schedule reload-agent actions only. In either case, we need
* to map that to whatever the resource agent actually supports.
* Default to the OCF 1.1 name.
*/
struct ra_metadata_s *md = NULL;
const char *reload_name = CRMD_ACTION_RELOAD_AGENT;
md = controld_get_rsc_metadata(lrm_state, rsc,
controld_metadata_from_cache);
if ((md != NULL)
&& pcmk_is_set(md->ra_flags, ra_supports_legacy_reload)) {
reload_name = CRMD_ACTION_RELOAD;
}
do_lrm_rsc_op(lrm_state, rsc, reload_name, input->xml);
} else {
do_lrm_rsc_op(lrm_state, rsc, operation, input->xml);
}
lrmd_free_rsc_info(rsc);
} else {
crm_err("Cannot perform operation %s of unknown type", crm_str(crm_op));
register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
}
}
#if ENABLE_VERSIONED_ATTRS
static void
resolve_versioned_parameters(lrm_state_t *lrm_state, const char *rsc_id,
const xmlNode *rsc_op, GHashTable *params)
{
/* Resource info *should* already be cached, so we don't get
* executor call */
lrmd_rsc_info_t *rsc = lrm_state_get_rsc_info(lrm_state, rsc_id, 0);
struct ra_metadata_s *metadata;
metadata = controld_get_rsc_metadata(lrm_state, rsc,
controld_metadata_from_cache);
if (metadata) {
xmlNode *versioned_attrs = NULL;
GHashTable *hash = NULL;
char *key = NULL;
char *value = NULL;
GHashTableIter iter;
versioned_attrs = first_named_child(rsc_op, XML_TAG_OP_VER_ATTRS);
hash = pe_unpack_versioned_parameters(versioned_attrs, metadata->ra_version);
g_hash_table_iter_init(&iter, hash);
while (g_hash_table_iter_next(&iter, (gpointer *) &key, (gpointer *) &value)) {
g_hash_table_iter_steal(&iter);
g_hash_table_replace(params, key, value);
}
g_hash_table_destroy(hash);
versioned_attrs = first_named_child(rsc_op, XML_TAG_OP_VER_META);
hash = pe_unpack_versioned_parameters(versioned_attrs, metadata->ra_version);
g_hash_table_iter_init(&iter, hash);
while (g_hash_table_iter_next(&iter, (gpointer *) &key, (gpointer *) &value)) {
g_hash_table_replace(params, crm_meta_name(key), strdup(value));
if (pcmk__str_eq(key, XML_ATTR_TIMEOUT, pcmk__str_casei)) {
pcmk__scan_min_int(value, &op->timeout, 0);
} else if (pcmk__str_eq(key, XML_OP_ATTR_START_DELAY, pcmk__str_casei)) {
pcmk__scan_min_int(value, &op->start_delay, 0);
}
}
g_hash_table_destroy(hash);
versioned_attrs = first_named_child(rsc_op, XML_TAG_RSC_VER_ATTRS);
hash = pe_unpack_versioned_parameters(versioned_attrs, metadata->ra_version);
g_hash_table_iter_init(&iter, hash);
while (g_hash_table_iter_next(&iter, (gpointer *) &key, (gpointer *) &value)) {
g_hash_table_iter_steal(&iter);
g_hash_table_replace(params, key, value);
}
g_hash_table_destroy(hash);
}
lrmd_free_rsc_info(rsc);
}
#endif
static lrmd_event_data_t *
construct_op(lrm_state_t *lrm_state, xmlNode *rsc_op, const char *rsc_id,
const char *operation)
{
lrmd_event_data_t *op = NULL;
const char *op_delay = NULL;
const char *op_timeout = NULL;
GHashTable *params = NULL;
xmlNode *primitive = NULL;
const char *class = NULL;
const char *transition = NULL;
CRM_ASSERT(rsc_id && operation);
op = lrmd_new_event(rsc_id, operation, 0);
op->type = lrmd_event_exec_complete;
op->timeout = 0;
op->start_delay = 0;
lrmd__set_result(op, PCMK_OCF_UNKNOWN, PCMK_EXEC_PENDING, NULL);
if (rsc_op == NULL) {
CRM_LOG_ASSERT(pcmk__str_eq(CRMD_ACTION_STOP, operation, pcmk__str_casei));
op->user_data = NULL;
/* the stop_all_resources() case
* by definition there is no DC (or they'd be shutting
* us down).
* So we should put our version here.
*/
op->params = pcmk__strkey_table(free, free);
g_hash_table_insert(op->params, strdup(XML_ATTR_CRM_VERSION), strdup(CRM_FEATURE_SET));
crm_trace("Constructed %s op for %s", operation, rsc_id);
return op;
}
params = xml2list(rsc_op);
g_hash_table_remove(params, CRM_META "_op_target_rc");
op_delay = crm_meta_value(params, XML_OP_ATTR_START_DELAY);
pcmk__scan_min_int(op_delay, &op->start_delay, 0);
op_timeout = crm_meta_value(params, XML_ATTR_TIMEOUT);
pcmk__scan_min_int(op_timeout, &op->timeout, 0);
if (pcmk__guint_from_hash(params, CRM_META "_" XML_LRM_ATTR_INTERVAL_MS, 0,
&(op->interval_ms)) != pcmk_rc_ok) {
op->interval_ms = 0;
}
/* Use pcmk_monitor_timeout instead of meta timeout for stonith
recurring monitor, if set */
primitive = find_xml_node(rsc_op, XML_CIB_TAG_RESOURCE, FALSE);
class = crm_element_value(primitive, XML_AGENT_ATTR_CLASS);
if (pcmk_is_set(pcmk_get_ra_caps(class), pcmk_ra_cap_fence_params)
&& pcmk__str_eq(operation, CRMD_ACTION_STATUS, pcmk__str_casei)
&& (op->interval_ms > 0)) {
op_timeout = g_hash_table_lookup(params, "pcmk_monitor_timeout");
if (op_timeout != NULL) {
op->timeout = crm_get_msec(op_timeout);
}
}
#if ENABLE_VERSIONED_ATTRS
if (lrm_state && !is_remote_lrmd_ra(NULL, NULL, rsc_id)
&& !pcmk__strcase_any_of(op_type, CRMD_ACTION_METADATA, CRMD_ACTION_DELETE,
NULL)) {
resolve_versioned_parameters(lrm_state, rsc_id, rsc_op, params);
}
#endif
if (!pcmk__str_eq(operation, RSC_STOP, pcmk__str_casei)) {
op->params = params;
} else {
rsc_history_t *entry = NULL;
if (lrm_state) {
entry = g_hash_table_lookup(lrm_state->resource_history, rsc_id);
}
/* If we do not have stop parameters cached, use
* whatever we are given */
if (!entry || !entry->stop_params) {
op->params = params;
} else {
/* Copy the cached parameter list so that we stop the resource
* with the old attributes, not the new ones */
op->params = pcmk__strkey_table(free, free);
g_hash_table_foreach(params, copy_meta_keys, op->params);
g_hash_table_foreach(entry->stop_params, copy_instance_keys, op->params);
g_hash_table_destroy(params);
params = NULL;
}
}
/* sanity */
if (op->timeout <= 0) {
op->timeout = op->interval_ms;
}
if (op->start_delay < 0) {
op->start_delay = 0;
}
transition = crm_element_value(rsc_op, XML_ATTR_TRANSITION_KEY);
CRM_CHECK(transition != NULL, return op);
op->user_data = strdup(transition);
if (op->interval_ms != 0) {
if (pcmk__strcase_any_of(operation, CRMD_ACTION_START, CRMD_ACTION_STOP, NULL)) {
crm_err("Start and Stop actions cannot have an interval: %u",
op->interval_ms);
op->interval_ms = 0;
}
}
crm_trace("Constructed %s op for %s: interval=%u",
operation, rsc_id, op->interval_ms);
return op;
}
/*!
* \internal
* \brief Send a (synthesized) event result
*
* Reply with a synthesized event result directly, as opposed to going through
* the executor.
*
* \param[in] to_host Host to send result to
* \param[in] to_sys IPC name to send result to (NULL for transition engine)
* \param[in] rsc Type information about resource the result is for
* \param[in] op Event with result to send
* \param[in] rsc_id ID of resource the result is for
*/
void
controld_ack_event_directly(const char *to_host, const char *to_sys,
lrmd_rsc_info_t *rsc, lrmd_event_data_t *op,
const char *rsc_id)
{
xmlNode *reply = NULL;
xmlNode *update, *iter;
crm_node_t *peer = NULL;
CRM_CHECK(op != NULL, return);
if (op->rsc_id == NULL) {
CRM_ASSERT(rsc_id != NULL);
op->rsc_id = strdup(rsc_id);
}
if (to_sys == NULL) {
to_sys = CRM_SYSTEM_TENGINE;
}
peer = crm_get_peer(0, fsa_our_uname);
update = create_node_state_update(peer, node_update_none, NULL,
__func__);
iter = create_xml_node(update, XML_CIB_TAG_LRM);
crm_xml_add(iter, XML_ATTR_ID, fsa_our_uuid);
iter = create_xml_node(iter, XML_LRM_TAG_RESOURCES);
iter = create_xml_node(iter, XML_LRM_TAG_RESOURCE);
crm_xml_add(iter, XML_ATTR_ID, op->rsc_id);
build_operation_update(iter, rsc, op, fsa_our_uname, __func__);
reply = create_request(CRM_OP_INVOKE_LRM, update, to_host, to_sys, CRM_SYSTEM_LRMD, NULL);
crm_log_xml_trace(update, "[direct ACK]");
crm_debug("ACK'ing resource op " PCMK__OP_FMT " from %s: %s",
op->rsc_id, op->op_type, op->interval_ms, op->user_data,
crm_element_value(reply, XML_ATTR_REFERENCE));
if (relay_message(reply, TRUE) == FALSE) {
crm_log_xml_err(reply, "Unable to route reply");
}
free_xml(update);
free_xml(reply);
}
gboolean
verify_stopped(enum crmd_fsa_state cur_state, int log_level)
{
gboolean res = TRUE;
GList *lrm_state_list = lrm_state_get_list();
GList *state_entry;
for (state_entry = lrm_state_list; state_entry != NULL; state_entry = state_entry->next) {
lrm_state_t *lrm_state = state_entry->data;
if (!lrm_state_verify_stopped(lrm_state, cur_state, log_level)) {
/* keep iterating through all even when false is returned */
res = FALSE;
}
}
controld_set_fsa_input_flags(R_SENT_RSC_STOP);
g_list_free(lrm_state_list); lrm_state_list = NULL;
return res;
}
struct stop_recurring_action_s {
lrmd_rsc_info_t *rsc;
lrm_state_t *lrm_state;
};
static gboolean
stop_recurring_action_by_rsc(gpointer key, gpointer value, gpointer user_data)
{
gboolean remove = FALSE;
struct stop_recurring_action_s *event = user_data;
active_op_t *op = value;
if ((op->interval_ms != 0)
&& pcmk__str_eq(op->rsc_id, event->rsc->id, pcmk__str_none)) {
crm_debug("Cancelling op %d for %s (%s)", op->call_id, op->rsc_id, (char*)key);
remove = !cancel_op(event->lrm_state, event->rsc->id, key, op->call_id, FALSE);
}
return remove;
}
static gboolean
stop_recurring_actions(gpointer key, gpointer value, gpointer user_data)
{
gboolean remove = FALSE;
lrm_state_t *lrm_state = user_data;
active_op_t *op = value;
if (op->interval_ms != 0) {
crm_info("Cancelling op %d for %s (%s)", op->call_id, op->rsc_id,
(const char *) key);
remove = !cancel_op(lrm_state, op->rsc_id, key, op->call_id, FALSE);
}
return remove;
}
static void
record_pending_op(const char *node_name, lrmd_rsc_info_t *rsc, lrmd_event_data_t *op)
{
const char *record_pending = NULL;
CRM_CHECK(node_name != NULL, return);
CRM_CHECK(rsc != NULL, return);
CRM_CHECK(op != NULL, return);
// Never record certain operation types as pending
if ((op->op_type == NULL) || (op->params == NULL)
|| !controld_action_is_recordable(op->op_type)) {
return;
}
// defaults to true
record_pending = crm_meta_value(op->params, XML_OP_ATTR_PENDING);
if (record_pending && !crm_is_true(record_pending)) {
return;
}
op->call_id = -1;
lrmd__set_result(op, PCMK_OCF_UNKNOWN, PCMK_EXEC_PENDING, NULL);
op->t_run = time(NULL);
op->t_rcchange = op->t_run;
/* write a "pending" entry to the CIB, inhibit notification */
crm_debug("Recording pending op " PCMK__OP_FMT " on %s in the CIB",
op->rsc_id, op->op_type, op->interval_ms, node_name);
do_update_resource(node_name, rsc, op, 0);
}
static void
do_lrm_rsc_op(lrm_state_t *lrm_state, lrmd_rsc_info_t *rsc,
const char *operation, xmlNode *msg)
{
int rc;
int call_id = 0;
char *op_id = NULL;
lrmd_event_data_t *op = NULL;
lrmd_key_value_t *params = NULL;
fsa_data_t *msg_data = NULL;
const char *transition = NULL;
gboolean stop_recurring = FALSE;
- bool send_nack = FALSE;
+ const char *nack_reason = NULL;
CRM_CHECK(rsc != NULL, return);
CRM_CHECK(operation != NULL, return);
if (msg != NULL) {
transition = crm_element_value(msg, XML_ATTR_TRANSITION_KEY);
if (transition == NULL) {
crm_log_xml_err(msg, "Missing transition number");
}
}
op = construct_op(lrm_state, msg, rsc->id, operation);
CRM_CHECK(op != NULL, return);
if (is_remote_lrmd_ra(NULL, NULL, rsc->id)
&& (op->interval_ms == 0)
&& strcmp(operation, CRMD_ACTION_MIGRATE) == 0) {
/* pcmk remote connections are a special use case.
* We never ever want to stop monitoring a connection resource until
* the entire migration has completed. If the connection is unexpectedly
* severed, even during a migration, this is an event we must detect.*/
stop_recurring = FALSE;
} else if ((op->interval_ms == 0)
&& strcmp(operation, CRMD_ACTION_STATUS) != 0
&& strcmp(operation, CRMD_ACTION_NOTIFY) != 0) {
/* stop any previous monitor operations before changing the resource state */
stop_recurring = TRUE;
}
if (stop_recurring == TRUE) {
guint removed = 0;
struct stop_recurring_action_s data;
data.rsc = rsc;
data.lrm_state = lrm_state;
removed = g_hash_table_foreach_remove(
lrm_state->pending_ops, stop_recurring_action_by_rsc, &data);
if (removed) {
crm_debug("Stopped %u recurring operation%s in preparation for "
PCMK__OP_FMT, removed, pcmk__plural_s(removed),
rsc->id, operation, op->interval_ms);
}
}
/* now do the op */
crm_notice("Requesting local execution of %s operation for %s on %s "
CRM_XS " transition_key=%s op_key=" PCMK__OP_FMT,
crm_action_str(op->op_type, op->interval_ms), rsc->id, lrm_state->node_name,
transition, rsc->id, operation, op->interval_ms);
if (pcmk_is_set(fsa_input_register, R_SHUTDOWN)
&& pcmk__str_eq(operation, RSC_START, pcmk__str_casei)) {
register_fsa_input(C_SHUTDOWN, I_SHUTDOWN, NULL);
- send_nack = TRUE;
+ nack_reason = "Not attempting start due to shutdown in progress";
} else if (fsa_state != S_NOT_DC
&& fsa_state != S_POLICY_ENGINE /* Recalculating */
&& fsa_state != S_TRANSITION_ENGINE
&& !pcmk__str_eq(operation, CRMD_ACTION_STOP, pcmk__str_casei)) {
- send_nack = TRUE;
+ nack_reason = "Controller cannot attempt actions at this time";
}
- if(send_nack) {
+ if (nack_reason != NULL) {
crm_notice("Discarding attempt to perform action %s on %s in state %s (shutdown=%s)",
operation, rsc->id, fsa_state2string(fsa_state),
pcmk__btoa(pcmk_is_set(fsa_input_register, R_SHUTDOWN)));
- lrmd__set_result(op, PCMK_OCF_UNKNOWN_ERROR, PCMK_EXEC_INVALID, NULL);
+ lrmd__set_result(op, PCMK_OCF_UNKNOWN_ERROR, PCMK_EXEC_INVALID,
+ nack_reason);
controld_ack_event_directly(NULL, NULL, rsc, op, rsc->id);
lrmd_free_event(op);
free(op_id);
return;
}
record_pending_op(lrm_state->node_name, rsc, op);
op_id = pcmk__op_key(rsc->id, op->op_type, op->interval_ms);
if (op->interval_ms > 0) {
/* cancel it so we can then restart it without conflict */
cancel_op_key(lrm_state, rsc, op_id, FALSE);
}
if (op->params) {
char *key = NULL;
char *value = NULL;
GHashTableIter iter;
g_hash_table_iter_init(&iter, op->params);
while (g_hash_table_iter_next(&iter, (gpointer *) & key, (gpointer *) & value)) {
params = lrmd_key_value_add(params, key, value);
}
}
rc = controld_execute_resource_agent(lrm_state, rsc->id, op->op_type,
op->user_data, op->interval_ms,
op->timeout, op->start_delay, params,
&call_id);
if (rc == pcmk_rc_ok) {
/* record all operations so we can wait
* for them to complete during shutdown
*/
char *call_id_s = make_stop_id(rsc->id, call_id);
active_op_t *pending = NULL;
pending = calloc(1, sizeof(active_op_t));
crm_trace("Recording pending op: %d - %s %s", call_id, op_id, call_id_s);
pending->call_id = call_id;
pending->interval_ms = op->interval_ms;
pending->op_type = strdup(operation);
pending->op_key = strdup(op_id);
pending->rsc_id = strdup(rsc->id);
pending->start_time = time(NULL);
pending->user_data = op->user_data? strdup(op->user_data) : NULL;
if (crm_element_value_epoch(msg, XML_CONFIG_ATTR_SHUTDOWN_LOCK,
&(pending->lock_time)) != pcmk_ok) {
pending->lock_time = 0;
}
g_hash_table_replace(lrm_state->pending_ops, call_id_s, pending);
if ((op->interval_ms > 0)
&& (op->start_delay > START_DELAY_THRESHOLD)) {
int target_rc = PCMK_OCF_OK;
crm_info("Faking confirmation of %s: execution postponed for over 5 minutes", op_id);
decode_transition_key(op->user_data, NULL, NULL, NULL, &target_rc);
lrmd__set_result(op, target_rc, PCMK_EXEC_DONE, NULL);
controld_ack_event_directly(NULL, NULL, rsc, op, rsc->id);
}
pending->params = op->params;
op->params = NULL;
} else if (lrm_state_is_local(lrm_state)) {
crm_err("Could not initiate %s action for resource %s locally: %s "
CRM_XS " rc=%d", operation, rsc->id, pcmk_rc_str(rc), rc);
fake_op_status(lrm_state, op, PCMK_EXEC_NOT_CONNECTED,
PCMK_OCF_UNKNOWN_ERROR);
process_lrm_event(lrm_state, op, NULL, NULL);
register_fsa_error(C_FSA_INTERNAL, I_FAIL, NULL);
} else {
crm_err("Could not initiate %s action for resource %s remotely on %s: "
"%s " CRM_XS " rc=%d",
operation, rsc->id, lrm_state->node_name, pcmk_rc_str(rc), rc);
fake_op_status(lrm_state, op, PCMK_EXEC_NOT_CONNECTED,
PCMK_OCF_UNKNOWN_ERROR);
process_lrm_event(lrm_state, op, NULL, NULL);
}
free(op_id);
lrmd_free_event(op);
}
int last_resource_update = 0;
static void
cib_rsc_callback(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data)
{
switch (rc) {
case pcmk_ok:
case -pcmk_err_diff_failed:
case -pcmk_err_diff_resync:
crm_trace("Resource update %d complete: rc=%d", call_id, rc);
break;
default:
crm_warn("Resource update %d failed: (rc=%d) %s", call_id, rc, pcmk_strerror(rc));
}
if (call_id == last_resource_update) {
last_resource_update = 0;
trigger_fsa();
}
}
/* Only successful stops, and probes that found the resource inactive, get locks
* recorded in the history. This ensures the resource stays locked to the node
* until it is active there again after the node comes back up.
*/
static bool
should_preserve_lock(lrmd_event_data_t *op)
{
if (!controld_shutdown_lock_enabled) {
return false;
}
if (!strcmp(op->op_type, RSC_STOP) && (op->rc == PCMK_OCF_OK)) {
return true;
}
if (!strcmp(op->op_type, RSC_STATUS) && (op->rc == PCMK_OCF_NOT_RUNNING)) {
return true;
}
return false;
}
static int
do_update_resource(const char *node_name, lrmd_rsc_info_t *rsc,
lrmd_event_data_t *op, time_t lock_time)
{
/*
<status>
<nodes_status id=uname>
<lrm>
<lrm_resources>
<lrm_resource id=...>
</...>
*/
int rc = pcmk_ok;
xmlNode *update, *iter = NULL;
int call_opt = crmd_cib_smart_opt();
const char *uuid = NULL;
CRM_CHECK(op != NULL, return 0);
iter = create_xml_node(iter, XML_CIB_TAG_STATUS);
update = iter;
iter = create_xml_node(iter, XML_CIB_TAG_STATE);
if (pcmk__str_eq(node_name, fsa_our_uname, pcmk__str_casei)) {
uuid = fsa_our_uuid;
} else {
/* remote nodes uuid and uname are equal */
uuid = node_name;
crm_xml_add(iter, XML_NODE_IS_REMOTE, "true");
}
CRM_LOG_ASSERT(uuid != NULL);
if(uuid == NULL) {
rc = -EINVAL;
goto done;
}
crm_xml_add(iter, XML_ATTR_UUID, uuid);
crm_xml_add(iter, XML_ATTR_UNAME, node_name);
crm_xml_add(iter, XML_ATTR_ORIGIN, __func__);
iter = create_xml_node(iter, XML_CIB_TAG_LRM);
crm_xml_add(iter, XML_ATTR_ID, uuid);
iter = create_xml_node(iter, XML_LRM_TAG_RESOURCES);
iter = create_xml_node(iter, XML_LRM_TAG_RESOURCE);
crm_xml_add(iter, XML_ATTR_ID, op->rsc_id);
build_operation_update(iter, rsc, op, node_name, __func__);
if (rsc) {
const char *container = NULL;
crm_xml_add(iter, XML_ATTR_TYPE, rsc->type);
crm_xml_add(iter, XML_AGENT_ATTR_CLASS, rsc->standard);
crm_xml_add(iter, XML_AGENT_ATTR_PROVIDER, rsc->provider);
if (lock_time != 0) {
/* Actions on a locked resource should either preserve the lock by
* recording it with the action result, or clear it.
*/
if (!should_preserve_lock(op)) {
lock_time = 0;
}
crm_xml_add_ll(iter, XML_CONFIG_ATTR_SHUTDOWN_LOCK,
(long long) lock_time);
}
if (op->params) {
container = g_hash_table_lookup(op->params, CRM_META"_"XML_RSC_ATTR_CONTAINER);
}
if (container) {
crm_trace("Resource %s is a part of container resource %s", op->rsc_id, container);
crm_xml_add(iter, XML_RSC_ATTR_CONTAINER, container);
}
} else {
crm_warn("Resource %s no longer exists in the executor", op->rsc_id);
controld_ack_event_directly(NULL, NULL, rsc, op, op->rsc_id);
goto cleanup;
}
crm_log_xml_trace(update, __func__);
/* make it an asynchronous call and be done with it
*
* Best case:
* the resource state will be discovered during
* the next signup or election.
*
* Bad case:
* we are shutting down and there is no DC at the time,
* but then why were we shutting down then anyway?
* (probably because of an internal error)
*
* Worst case:
* we get shot for having resources "running" that really weren't
*
* the alternative however means blocking here for too long, which
* isn't acceptable
*/
fsa_cib_update(XML_CIB_TAG_STATUS, update, call_opt, rc, NULL);
if (rc > 0) {
last_resource_update = rc;
}
done:
/* the return code is a call number, not an error code */
crm_trace("Sent resource state update message: %d for %s=%u on %s",
rc, op->op_type, op->interval_ms, op->rsc_id);
fsa_register_cib_callback(rc, FALSE, NULL, cib_rsc_callback);
cleanup:
free_xml(update);
return rc;
}
void
do_lrm_event(long long action,
enum crmd_fsa_cause cause,
enum crmd_fsa_state cur_state, enum crmd_fsa_input cur_input, fsa_data_t * msg_data)
{
CRM_CHECK(FALSE, return);
}
static char *
unescape_newlines(const char *string)
{
char *pch = NULL;
char *ret = NULL;
static const char *escaped_newline = "\\n";
if (!string) {
return NULL;
}
ret = strdup(string);
pch = strstr(ret, escaped_newline);
while (pch != NULL) {
/* Replace newline escape pattern with actual newline (and a space so we
* don't have to shuffle the rest of the buffer)
*/
pch[0] = '\n';
pch[1] = ' ';
pch = strstr(pch, escaped_newline);
}
return ret;
}
static bool
did_lrm_rsc_op_fail(lrm_state_t *lrm_state, const char * rsc_id,
const char * op_type, guint interval_ms)
{
rsc_history_t *entry = NULL;
CRM_CHECK(lrm_state != NULL, return FALSE);
CRM_CHECK(rsc_id != NULL, return FALSE);
CRM_CHECK(op_type != NULL, return FALSE);
entry = g_hash_table_lookup(lrm_state->resource_history, rsc_id);
if (entry == NULL || entry->failed == NULL) {
return FALSE;
}
if (pcmk__str_eq(entry->failed->rsc_id, rsc_id, pcmk__str_none)
&& pcmk__str_eq(entry->failed->op_type, op_type, pcmk__str_casei)
&& entry->failed->interval_ms == interval_ms) {
return TRUE;
}
return FALSE;
}
void
process_lrm_event(lrm_state_t *lrm_state, lrmd_event_data_t *op,
active_op_t *pending, xmlNode *action_xml)
{
char *op_id = NULL;
char *op_key = NULL;
int update_id = 0;
gboolean remove = FALSE;
gboolean removed = FALSE;
bool need_direct_ack = FALSE;
lrmd_rsc_info_t *rsc = NULL;
const char *node_name = NULL;
CRM_CHECK(op != NULL, return);
CRM_CHECK(op->rsc_id != NULL, return);
// Remap new status codes for older DCs
if (compare_version(fsa_our_dc_version, "3.2.0") < 0) {
switch (op->op_status) {
case PCMK_EXEC_NOT_CONNECTED:
lrmd__set_result(op, PCMK_OCF_CONNECTION_DIED,
PCMK_EXEC_ERROR, op->exit_reason);
break;
case PCMK_EXEC_INVALID:
lrmd__set_result(op, CRM_DIRECT_NACK_RC, PCMK_EXEC_ERROR,
op->exit_reason);
break;
default:
break;
}
}
op_id = make_stop_id(op->rsc_id, op->call_id);
op_key = pcmk__op_key(op->rsc_id, op->op_type, op->interval_ms);
// Get resource info if available (from executor state or action XML)
if (lrm_state) {
rsc = lrm_state_get_rsc_info(lrm_state, op->rsc_id, 0);
}
if ((rsc == NULL) && action_xml) {
xmlNode *xml = find_xml_node(action_xml, XML_CIB_TAG_RESOURCE, TRUE);
const char *standard = crm_element_value(xml, XML_AGENT_ATTR_CLASS);
const char *provider = crm_element_value(xml, XML_AGENT_ATTR_PROVIDER);
const char *type = crm_element_value(xml, XML_ATTR_TYPE);
if (standard && type) {
crm_info("%s agent information not cached, using %s%s%s:%s from action XML",
op->rsc_id, standard,
(provider? ":" : ""), (provider? provider : ""), type);
rsc = lrmd_new_rsc_info(op->rsc_id, standard, provider, type);
} else {
crm_err("Can't process %s result because %s agent information not cached or in XML",
op_key, op->rsc_id);
}
}
// Get node name if available (from executor state or action XML)
if (lrm_state) {
node_name = lrm_state->node_name;
} else if (action_xml) {
node_name = crm_element_value(action_xml, XML_LRM_ATTR_TARGET);
}
if(pending == NULL) {
remove = TRUE;
if (lrm_state) {
pending = g_hash_table_lookup(lrm_state->pending_ops, op_id);
}
}
if (op->op_status == PCMK_EXEC_ERROR) {
switch(op->rc) {
case PCMK_OCF_NOT_RUNNING:
case PCMK_OCF_RUNNING_PROMOTED:
case PCMK_OCF_DEGRADED:
case PCMK_OCF_DEGRADED_PROMOTED:
// Leave it to the TE/scheduler to decide if this is an error
op->op_status = PCMK_EXEC_DONE;
break;
default:
/* Nothing to do */
break;
}
}
if (op->op_status != PCMK_EXEC_CANCELLED) {
/* We might not record the result, so directly acknowledge it to the
* originator instead, so it doesn't time out waiting for the result
* (especially important if part of a transition).
*/
need_direct_ack = TRUE;
if (controld_action_is_recordable(op->op_type)) {
if (node_name && rsc) {
// We should record the result, and happily, we can
update_id = do_update_resource(node_name, rsc, op,
pending? pending->lock_time : 0);
need_direct_ack = FALSE;
} else if (op->rsc_deleted) {
/* We shouldn't record the result (likely the resource was
* refreshed, cleaned, or removed while this operation was
* in flight).
*/
crm_notice("Not recording %s result in CIB because "
"resource information was removed since it was initiated",
op_key);
} else {
/* This shouldn't be possible; the executor didn't consider the
* resource deleted, but we couldn't find resource or node
* information.
*/
crm_err("Unable to record %s result in CIB: %s", op_key,
(node_name? "No resource information" : "No node name"));
}
}
} else if (op->interval_ms == 0) {
/* A non-recurring operation was cancelled. Most likely, the
* never-initiated action was removed from the executor's pending
* operations list upon resource removal.
*/
need_direct_ack = TRUE;
} else if (pending == NULL) {
/* This recurring operation was cancelled, but was not pending. No
* transition actions are waiting on it, nothing needs to be done.
*/
} else if (op->user_data == NULL) {
/* This recurring operation was cancelled and pending, but we don't
* have a transition key. This should never happen.
*/
crm_err("Recurring operation %s was cancelled without transition information",
op_key);
} else if (pcmk_is_set(pending->flags, active_op_remove)) {
/* This recurring operation was cancelled (by us) and pending, and we
* have been waiting for it to finish.
*/
if (lrm_state) {
erase_lrm_history_by_op(lrm_state, op);
}
/* If the recurring operation had failed, the lrm_rsc_op is recorded as
* "last_failure" which won't get erased from the cib given the logic on
* purpose in erase_lrm_history_by_op(). So that the cancel action won't
* have a chance to get confirmed by DC with process_op_deletion().
* Cluster transition would get stuck waiting for the remaining action
* timer to time out.
*
* Directly acknowledge the cancel operation in this case.
*/
if (did_lrm_rsc_op_fail(lrm_state, pending->rsc_id,
pending->op_type, pending->interval_ms)) {
need_direct_ack = TRUE;
}
} else if (op->rsc_deleted) {
/* This recurring operation was cancelled (but not by us, and the
* executor does not have resource information, likely due to resource
* cleanup, refresh, or removal) and pending.
*/
crm_debug("Recurring op %s was cancelled due to resource deletion",
op_key);
need_direct_ack = TRUE;
} else {
/* This recurring operation was cancelled (but not by us, likely by the
* executor before stopping the resource) and pending. We don't need to
* do anything special.
*/
}
if (need_direct_ack) {
controld_ack_event_directly(NULL, NULL, NULL, op, op->rsc_id);
}
if(remove == FALSE) {
/* The caller will do this afterwards, but keep the logging consistent */
removed = TRUE;
} else if (lrm_state && ((op->interval_ms == 0)
|| (op->op_status == PCMK_EXEC_CANCELLED))) {
gboolean found = g_hash_table_remove(lrm_state->pending_ops, op_id);
if (op->interval_ms != 0) {
removed = TRUE;
} else if (found) {
removed = TRUE;
crm_trace("Op %s (call=%d, stop-id=%s, remaining=%u): Confirmed",
op_key, op->call_id, op_id,
g_hash_table_size(lrm_state->pending_ops));
}
}
if (node_name == NULL) {
node_name = "unknown node"; // for logging
}
switch (op->op_status) {
case PCMK_EXEC_CANCELLED:
crm_info("Result of %s operation for %s on %s: %s "
CRM_XS " call=%d key=%s confirmed=%s",
crm_action_str(op->op_type, op->interval_ms),
op->rsc_id, node_name, pcmk_exec_status_str(op->op_status),
op->call_id, op_key, pcmk__btoa(removed));
break;
case PCMK_EXEC_DONE:
crm_notice("Result of %s operation for %s on %s: %s "
CRM_XS " rc=%d call=%d key=%s confirmed=%s cib-update=%d",
crm_action_str(op->op_type, op->interval_ms),
op->rsc_id, node_name,
services_ocf_exitcode_str(op->rc), op->rc,
op->call_id, op_key, pcmk__btoa(removed), update_id);
break;
case PCMK_EXEC_TIMEOUT:
crm_err("Result of %s operation for %s on %s: %s "
CRM_XS " call=%d key=%s timeout=%dms",
crm_action_str(op->op_type, op->interval_ms),
op->rsc_id, node_name, pcmk_exec_status_str(op->op_status),
op->call_id, op_key, op->timeout);
break;
default:
crm_err("Result of %s operation for %s on %s: %s "
CRM_XS " call=%d key=%s confirmed=%s status=%d cib-update=%d",
crm_action_str(op->op_type, op->interval_ms),
op->rsc_id, node_name, pcmk_exec_status_str(op->op_status),
op->call_id, op_key, pcmk__btoa(removed), op->op_status,
update_id);
}
if (op->output) {
char *prefix =
crm_strdup_printf("%s-" PCMK__OP_FMT ":%d", node_name,
op->rsc_id, op->op_type, op->interval_ms,
op->call_id);
if (op->rc) {
crm_log_output(LOG_NOTICE, prefix, op->output);
} else {
crm_log_output(LOG_DEBUG, prefix, op->output);
}
free(prefix);
}
if (lrm_state) {
if (!pcmk__str_eq(op->op_type, RSC_METADATA, pcmk__str_casei)) {
crmd_alert_resource_op(lrm_state->node_name, op);
} else if (rsc && (op->rc == PCMK_OCF_OK)) {
char *metadata = unescape_newlines(op->output);
metadata_cache_update(lrm_state->metadata_cache, rsc, metadata);
free(metadata);
}
}
if (op->rsc_deleted) {
crm_info("Deletion of resource '%s' complete after %s", op->rsc_id, op_key);
if (lrm_state) {
delete_rsc_entry(lrm_state, NULL, op->rsc_id, NULL, pcmk_ok, NULL);
}
}
/* If a shutdown was escalated while operations were pending,
* then the FSA will be stalled right now... allow it to continue
*/
mainloop_set_trigger(fsa_source);
if (lrm_state && rsc) {
update_history_cache(lrm_state, rsc, op);
}
lrmd_free_rsc_info(rsc);
free(op_key);
free(op_id);
}
diff --git a/daemons/controld/controld_execd_state.c b/daemons/controld/controld_execd_state.c
index 5435402717..a0129bd514 100644
--- a/daemons/controld/controld_execd_state.c
+++ b/daemons/controld/controld_execd_state.c
@@ -1,853 +1,853 @@
/*
* Copyright 2012-2021 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 <errno.h>
#include <crm/crm.h>
#include <crm/msg_xml.h>
#include <crm/common/iso8601.h>
#include <crm/pengine/rules.h>
#include <crm/pengine/rules_internal.h>
#include <crm/lrmd_internal.h>
#include <pacemaker-internal.h>
#include <pacemaker-controld.h>
GHashTable *lrm_state_table = NULL;
extern GHashTable *proxy_table;
int lrmd_internal_proxy_send(lrmd_t * lrmd, xmlNode *msg);
void lrmd_internal_set_proxy_callback(lrmd_t * lrmd, void *userdata, void (*callback)(lrmd_t *lrmd, void *userdata, xmlNode *msg));
static void
free_rsc_info(gpointer value)
{
lrmd_rsc_info_t *rsc_info = value;
lrmd_free_rsc_info(rsc_info);
}
static void
free_deletion_op(gpointer value)
{
struct pending_deletion_op_s *op = value;
free(op->rsc);
delete_ha_msg_input(op->input);
free(op);
}
static void
free_recurring_op(gpointer value)
{
active_op_t *op = value;
free(op->user_data);
free(op->rsc_id);
free(op->op_type);
free(op->op_key);
if (op->params) {
g_hash_table_destroy(op->params);
}
free(op);
}
static gboolean
fail_pending_op(gpointer key, gpointer value, gpointer user_data)
{
lrmd_event_data_t event = { 0, };
lrm_state_t *lrm_state = user_data;
active_op_t *op = value;
crm_trace("Pre-emptively failing " PCMK__OP_FMT " on %s (call=%s, %s)",
op->rsc_id, op->op_type, op->interval_ms,
lrm_state->node_name, (char*)key, op->user_data);
event.type = lrmd_event_exec_complete;
event.rsc_id = op->rsc_id;
event.op_type = op->op_type;
event.user_data = op->user_data;
event.timeout = 0;
event.interval_ms = op->interval_ms;
lrmd__set_result(&event, PCMK_OCF_UNKNOWN_ERROR, PCMK_EXEC_NOT_CONNECTED,
- NULL);
+ "Action was pending when executor connection was dropped");
event.t_run = (unsigned int) op->start_time;
event.t_rcchange = (unsigned int) op->start_time;
event.call_id = op->call_id;
event.remote_nodename = lrm_state->node_name;
event.params = op->params;
process_lrm_event(lrm_state, &event, op, NULL);
return TRUE;
}
gboolean
lrm_state_is_local(lrm_state_t *lrm_state)
{
if (lrm_state == NULL || fsa_our_uname == NULL) {
return FALSE;
}
if (strcmp(lrm_state->node_name, fsa_our_uname) != 0) {
return FALSE;
}
return TRUE;
}
lrm_state_t *
lrm_state_create(const char *node_name)
{
lrm_state_t *state = NULL;
if (!node_name) {
crm_err("No node name given for lrm state object");
return NULL;
}
state = calloc(1, sizeof(lrm_state_t));
if (!state) {
return NULL;
}
state->node_name = strdup(node_name);
state->rsc_info_cache = pcmk__strkey_table(NULL, free_rsc_info);
state->deletion_ops = pcmk__strkey_table(free, free_deletion_op);
state->pending_ops = pcmk__strkey_table(free, free_recurring_op);
state->resource_history = pcmk__strkey_table(NULL, history_free);
state->metadata_cache = metadata_cache_new();
g_hash_table_insert(lrm_state_table, (char *)state->node_name, state);
return state;
}
void
lrm_state_destroy(const char *node_name)
{
g_hash_table_remove(lrm_state_table, node_name);
}
static gboolean
remote_proxy_remove_by_node(gpointer key, gpointer value, gpointer user_data)
{
remote_proxy_t *proxy = value;
const char *node_name = user_data;
if (pcmk__str_eq(node_name, proxy->node_name, pcmk__str_casei)) {
return TRUE;
}
return FALSE;
}
static void
internal_lrm_state_destroy(gpointer data)
{
lrm_state_t *lrm_state = data;
if (!lrm_state) {
return;
}
crm_trace("Destroying proxy table %s with %d members", lrm_state->node_name, g_hash_table_size(proxy_table));
g_hash_table_foreach_remove(proxy_table, remote_proxy_remove_by_node, (char *) lrm_state->node_name);
remote_ra_cleanup(lrm_state);
lrmd_api_delete(lrm_state->conn);
if (lrm_state->rsc_info_cache) {
crm_trace("Destroying rsc info cache with %d members", g_hash_table_size(lrm_state->rsc_info_cache));
g_hash_table_destroy(lrm_state->rsc_info_cache);
}
if (lrm_state->resource_history) {
crm_trace("Destroying history op cache with %d members", g_hash_table_size(lrm_state->resource_history));
g_hash_table_destroy(lrm_state->resource_history);
}
if (lrm_state->deletion_ops) {
crm_trace("Destroying deletion op cache with %d members", g_hash_table_size(lrm_state->deletion_ops));
g_hash_table_destroy(lrm_state->deletion_ops);
}
if (lrm_state->pending_ops) {
crm_trace("Destroying pending op cache with %d members", g_hash_table_size(lrm_state->pending_ops));
g_hash_table_destroy(lrm_state->pending_ops);
}
metadata_cache_free(lrm_state->metadata_cache);
free((char *)lrm_state->node_name);
free(lrm_state);
}
void
lrm_state_reset_tables(lrm_state_t * lrm_state, gboolean reset_metadata)
{
if (lrm_state->resource_history) {
crm_trace("Re-setting history op cache with %d members",
g_hash_table_size(lrm_state->resource_history));
g_hash_table_remove_all(lrm_state->resource_history);
}
if (lrm_state->deletion_ops) {
crm_trace("Re-setting deletion op cache with %d members",
g_hash_table_size(lrm_state->deletion_ops));
g_hash_table_remove_all(lrm_state->deletion_ops);
}
if (lrm_state->pending_ops) {
crm_trace("Re-setting pending op cache with %d members",
g_hash_table_size(lrm_state->pending_ops));
g_hash_table_remove_all(lrm_state->pending_ops);
}
if (lrm_state->rsc_info_cache) {
crm_trace("Re-setting rsc info cache with %d members",
g_hash_table_size(lrm_state->rsc_info_cache));
g_hash_table_remove_all(lrm_state->rsc_info_cache);
}
if (reset_metadata) {
metadata_cache_reset(lrm_state->metadata_cache);
}
}
gboolean
lrm_state_init_local(void)
{
if (lrm_state_table) {
return TRUE;
}
lrm_state_table = pcmk__strikey_table(NULL, internal_lrm_state_destroy);
if (!lrm_state_table) {
return FALSE;
}
proxy_table = pcmk__strikey_table(NULL, remote_proxy_free);
if (!proxy_table) {
g_hash_table_destroy(lrm_state_table);
lrm_state_table = NULL;
return FALSE;
}
return TRUE;
}
void
lrm_state_destroy_all(void)
{
if (lrm_state_table) {
crm_trace("Destroying state table with %d members", g_hash_table_size(lrm_state_table));
g_hash_table_destroy(lrm_state_table); lrm_state_table = NULL;
}
if(proxy_table) {
crm_trace("Destroying proxy table with %d members", g_hash_table_size(proxy_table));
g_hash_table_destroy(proxy_table); proxy_table = NULL;
}
}
lrm_state_t *
lrm_state_find(const char *node_name)
{
if (!node_name) {
return NULL;
}
return g_hash_table_lookup(lrm_state_table, node_name);
}
lrm_state_t *
lrm_state_find_or_create(const char *node_name)
{
lrm_state_t *lrm_state;
lrm_state = g_hash_table_lookup(lrm_state_table, node_name);
if (!lrm_state) {
lrm_state = lrm_state_create(node_name);
}
return lrm_state;
}
GList *
lrm_state_get_list(void)
{
return g_hash_table_get_values(lrm_state_table);
}
static remote_proxy_t *
find_connected_proxy_by_node(const char * node_name)
{
GHashTableIter gIter;
remote_proxy_t *proxy = NULL;
CRM_CHECK(proxy_table != NULL, return NULL);
g_hash_table_iter_init(&gIter, proxy_table);
while (g_hash_table_iter_next(&gIter, NULL, (gpointer *) &proxy)) {
if (proxy->source
&& pcmk__str_eq(node_name, proxy->node_name, pcmk__str_casei)) {
return proxy;
}
}
return NULL;
}
static void
remote_proxy_disconnect_by_node(const char * node_name)
{
remote_proxy_t *proxy = NULL;
CRM_CHECK(proxy_table != NULL, return);
while ((proxy = find_connected_proxy_by_node(node_name)) != NULL) {
/* mainloop_del_ipc_client() eventually calls remote_proxy_disconnected()
* , which removes the entry from proxy_table.
* Do not do this in a g_hash_table_iter_next() loop. */
if (proxy->source) {
mainloop_del_ipc_client(proxy->source);
}
}
return;
}
void
lrm_state_disconnect_only(lrm_state_t * lrm_state)
{
int removed = 0;
if (!lrm_state->conn) {
return;
}
crm_trace("Disconnecting %s", lrm_state->node_name);
remote_proxy_disconnect_by_node(lrm_state->node_name);
((lrmd_t *) lrm_state->conn)->cmds->disconnect(lrm_state->conn);
if (!pcmk_is_set(fsa_input_register, R_SHUTDOWN)) {
removed = g_hash_table_foreach_remove(lrm_state->pending_ops, fail_pending_op, lrm_state);
crm_trace("Synthesized %d operation failures for %s", removed, lrm_state->node_name);
}
}
void
lrm_state_disconnect(lrm_state_t * lrm_state)
{
if (!lrm_state->conn) {
return;
}
lrm_state_disconnect_only(lrm_state);
lrmd_api_delete(lrm_state->conn);
lrm_state->conn = NULL;
}
int
lrm_state_is_connected(lrm_state_t * lrm_state)
{
if (!lrm_state->conn) {
return FALSE;
}
return ((lrmd_t *) lrm_state->conn)->cmds->is_connected(lrm_state->conn);
}
int
lrm_state_poke_connection(lrm_state_t * lrm_state)
{
if (!lrm_state->conn) {
return -ENOTCONN;
}
return ((lrmd_t *) lrm_state->conn)->cmds->poke_connection(lrm_state->conn);
}
// \return Standard Pacemaker return code
int
controld_connect_local_executor(lrm_state_t *lrm_state)
{
int rc = pcmk_rc_ok;
if (lrm_state->conn == NULL) {
lrmd_t *api = NULL;
rc = lrmd__new(&api, NULL, NULL, 0);
if (rc != pcmk_rc_ok) {
return rc;
}
api->cmds->set_callback(api, lrm_op_callback);
lrm_state->conn = api;
}
rc = ((lrmd_t *) lrm_state->conn)->cmds->connect(lrm_state->conn,
CRM_SYSTEM_CRMD, NULL);
rc = pcmk_legacy2rc(rc);
if (rc == pcmk_rc_ok) {
lrm_state->num_lrm_register_fails = 0;
} else {
lrm_state->num_lrm_register_fails++;
}
return rc;
}
static remote_proxy_t *
crmd_remote_proxy_new(lrmd_t *lrmd, const char *node_name, const char *session_id, const char *channel)
{
struct ipc_client_callbacks proxy_callbacks = {
.dispatch = remote_proxy_dispatch,
.destroy = remote_proxy_disconnected
};
remote_proxy_t *proxy = remote_proxy_new(lrmd, &proxy_callbacks, node_name,
session_id, channel);
return proxy;
}
gboolean
crmd_is_proxy_session(const char *session)
{
return g_hash_table_lookup(proxy_table, session) ? TRUE : FALSE;
}
void
crmd_proxy_send(const char *session, xmlNode *msg)
{
remote_proxy_t *proxy = g_hash_table_lookup(proxy_table, session);
lrm_state_t *lrm_state = NULL;
if (!proxy) {
return;
}
crm_log_xml_trace(msg, "to-proxy");
lrm_state = lrm_state_find(proxy->node_name);
if (lrm_state) {
crm_trace("Sending event to %.8s on %s", proxy->session_id, proxy->node_name);
remote_proxy_relay_event(proxy, msg);
}
}
static void
crmd_proxy_dispatch(const char *session, xmlNode *msg)
{
crm_trace("Processing proxied IPC message from session %s", session);
crm_log_xml_trace(msg, "controller[inbound]");
crm_xml_add(msg, F_CRM_SYS_FROM, session);
if (controld_authorize_ipc_message(msg, NULL, session)) {
route_message(C_IPC_MESSAGE, msg);
}
trigger_fsa();
}
static void
remote_config_check(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data)
{
if (rc != pcmk_ok) {
crm_err("Query resulted in an error: %s", pcmk_strerror(rc));
if (rc == -EACCES || rc == -pcmk_err_schema_validation) {
crm_err("The cluster is mis-configured - shutting down and staying down");
}
} else {
lrmd_t * lrmd = (lrmd_t *)user_data;
crm_time_t *now = crm_time_new(NULL);
GHashTable *config_hash = pcmk__strkey_table(free, free);
crm_debug("Call %d : Parsing CIB options", call_id);
pe_unpack_nvpairs(output, output, XML_CIB_TAG_PROPSET, NULL,
config_hash, CIB_OPTIONS_FIRST, FALSE, now, NULL);
/* Now send it to the remote peer */
lrmd__validate_remote_settings(lrmd, config_hash);
g_hash_table_destroy(config_hash);
crm_time_free(now);
}
}
static void
crmd_remote_proxy_cb(lrmd_t *lrmd, void *userdata, xmlNode *msg)
{
lrm_state_t *lrm_state = userdata;
const char *session = crm_element_value(msg, F_LRMD_IPC_SESSION);
remote_proxy_t *proxy = g_hash_table_lookup(proxy_table, session);
const char *op = crm_element_value(msg, F_LRMD_IPC_OP);
if (pcmk__str_eq(op, LRMD_IPC_OP_NEW, pcmk__str_casei)) {
const char *channel = crm_element_value(msg, F_LRMD_IPC_IPC_SERVER);
proxy = crmd_remote_proxy_new(lrmd, lrm_state->node_name, session, channel);
if (!remote_ra_controlling_guest(lrm_state)) {
if (proxy != NULL) {
/* Look up stonith-watchdog-timeout and send to the remote peer for validation */
int rc = fsa_cib_conn->cmds->query(fsa_cib_conn, XML_CIB_TAG_CRMCONFIG, NULL, cib_scope_local);
fsa_cib_conn->cmds->register_callback_full(fsa_cib_conn, rc, 10, FALSE, lrmd,
"remote_config_check", remote_config_check, NULL);
}
} else {
crm_debug("Skipping remote_config_check for guest-nodes");
}
} else if (pcmk__str_eq(op, LRMD_IPC_OP_SHUTDOWN_REQ, pcmk__str_casei)) {
char *now_s = NULL;
crm_notice("%s requested shutdown of its remote connection",
lrm_state->node_name);
if (!remote_ra_is_in_maintenance(lrm_state)) {
now_s = pcmk__ttoa(time(NULL));
update_attrd(lrm_state->node_name, XML_CIB_ATTR_SHUTDOWN, now_s, NULL, TRUE);
free(now_s);
remote_proxy_ack_shutdown(lrmd);
crm_warn("Reconnection attempts to %s may result in failures that must be cleared",
lrm_state->node_name);
} else {
remote_proxy_nack_shutdown(lrmd);
crm_notice("Remote resource for %s is not managed so no ordered shutdown happening",
lrm_state->node_name);
}
return;
} else if (pcmk__str_eq(op, LRMD_IPC_OP_REQUEST, pcmk__str_casei) && proxy && proxy->is_local) {
/* This is for the controller, which we are, so don't try
* to send to ourselves over IPC -- do it directly.
*/
int flags = 0;
xmlNode *request = get_message_xml(msg, F_LRMD_IPC_MSG);
CRM_CHECK(request != NULL, return);
CRM_CHECK(lrm_state->node_name, return);
crm_xml_add(request, XML_ACL_TAG_ROLE, "pacemaker-remote");
pcmk__update_acl_user(request, F_LRMD_IPC_USER, lrm_state->node_name);
/* Pacemaker Remote nodes don't know their own names (as known to the
* cluster). When getting a node info request with no name or ID, add
* the name, so we don't return info for ourselves instead of the
* Pacemaker Remote node.
*/
if (pcmk__str_eq(crm_element_value(request, F_CRM_TASK), CRM_OP_NODE_INFO, pcmk__str_casei)) {
int node_id = 0;
crm_element_value_int(request, XML_ATTR_ID, &node_id);
if ((node_id <= 0)
&& (crm_element_value(request, XML_ATTR_UNAME) == NULL)) {
crm_xml_add(request, XML_ATTR_UNAME, lrm_state->node_name);
}
}
crmd_proxy_dispatch(session, request);
crm_element_value_int(msg, F_LRMD_IPC_MSG_FLAGS, &flags);
if (flags & crm_ipc_client_response) {
int msg_id = 0;
xmlNode *op_reply = create_xml_node(NULL, "ack");
crm_xml_add(op_reply, "function", __func__);
crm_xml_add_int(op_reply, "line", __LINE__);
crm_element_value_int(msg, F_LRMD_IPC_MSG_ID, &msg_id);
remote_proxy_relay_response(proxy, op_reply, msg_id);
free_xml(op_reply);
}
} else {
remote_proxy_cb(lrmd, lrm_state->node_name, msg);
}
}
// \return Standard Pacemaker return code
int
controld_connect_remote_executor(lrm_state_t *lrm_state, const char *server,
int port, int timeout_ms)
{
int rc = pcmk_rc_ok;
if (lrm_state->conn == NULL) {
lrmd_t *api = NULL;
rc = lrmd__new(&api, lrm_state->node_name, server, port);
if (rc != pcmk_rc_ok) {
crm_warn("Pacemaker Remote connection to %s:%s failed: %s "
CRM_XS " rc=%d", server, port, pcmk_rc_str(rc), rc);
return rc;
}
lrm_state->conn = api;
api->cmds->set_callback(api, remote_lrm_op_callback);
lrmd_internal_set_proxy_callback(api, lrm_state, crmd_remote_proxy_cb);
}
crm_trace("Initiating remote connection to %s:%d with timeout %dms",
server, port, timeout_ms);
rc = ((lrmd_t *) lrm_state->conn)->cmds->connect_async(lrm_state->conn,
lrm_state->node_name,
timeout_ms);
if (rc == pcmk_ok) {
lrm_state->num_lrm_register_fails = 0;
} else {
lrm_state->num_lrm_register_fails++; // Ignored for remote connections
}
return pcmk_legacy2rc(rc);
}
int
lrm_state_get_metadata(lrm_state_t * lrm_state,
const char *class,
const char *provider,
const char *agent, char **output, enum lrmd_call_options options)
{
lrmd_key_value_t *params = NULL;
if (!lrm_state->conn) {
return -ENOTCONN;
}
/* Add the node name to the environment, as is done with normal resource
* action calls. Meta-data calls shouldn't need it, but some agents are
* written with an ocf_local_nodename call at the beginning regardless of
* action. Without the environment variable, the agent would try to contact
* the controller to get the node name -- but the controller would be
* blocking on the synchronous meta-data call.
*
* At this point, we have to assume that agents are unlikely to make other
* calls that require the controller, such as crm_node --quorum or
* --cluster-id.
*
* @TODO Make meta-data calls asynchronous. (This will be part of a larger
* project to make meta-data calls via the executor rather than directly.)
*/
params = lrmd_key_value_add(params, CRM_META "_" XML_LRM_ATTR_TARGET,
lrm_state->node_name);
return ((lrmd_t *) lrm_state->conn)->cmds->get_metadata_params(lrm_state->conn,
class, provider, agent, output, options, params);
}
int
lrm_state_cancel(lrm_state_t *lrm_state, const char *rsc_id, const char *action,
guint interval_ms)
{
if (!lrm_state->conn) {
return -ENOTCONN;
}
/* Figure out a way to make this async?
* NOTICE: Currently it's synced and directly acknowledged in do_lrm_invoke(). */
if (is_remote_lrmd_ra(NULL, NULL, rsc_id)) {
return remote_ra_cancel(lrm_state, rsc_id, action, interval_ms);
}
return ((lrmd_t *) lrm_state->conn)->cmds->cancel(lrm_state->conn, rsc_id,
action, interval_ms);
}
lrmd_rsc_info_t *
lrm_state_get_rsc_info(lrm_state_t * lrm_state, const char *rsc_id, enum lrmd_call_options options)
{
lrmd_rsc_info_t *rsc = NULL;
if (!lrm_state->conn) {
return NULL;
}
if (is_remote_lrmd_ra(NULL, NULL, rsc_id)) {
return remote_ra_get_rsc_info(lrm_state, rsc_id);
}
rsc = g_hash_table_lookup(lrm_state->rsc_info_cache, rsc_id);
if (rsc == NULL) {
/* only contact the lrmd if we don't already have a cached rsc info */
rsc = ((lrmd_t *) lrm_state->conn)->cmds->get_rsc_info(lrm_state->conn, rsc_id, options);
if (rsc == NULL) {
return NULL;
}
/* cache the result */
g_hash_table_insert(lrm_state->rsc_info_cache, rsc->id, rsc);
}
return lrmd_copy_rsc_info(rsc);
}
/*!
* \internal
* \brief Initiate a resource agent action
*
* \param[in] lrm_state Executor state object
* \param[in] rsc_id ID of resource for action
* \param[in] action Action to execute
* \param[in] userdata String to copy and pass to execution callback
* \param[in] interval_ms Action interval (in milliseconds)
* \param[in] timeout_ms Action timeout (in milliseconds)
* \param[in] start_delay_ms Delay (in milliseconds) before initiating action
* \param[in] params Resource parameters
* \param[out] call_id Where to store call ID on success
*
* \return Standard Pacemaker return code
* \note This takes ownership of \p params, which should not be used or freed
* after calling this function.
*/
int
controld_execute_resource_agent(lrm_state_t *lrm_state, const char *rsc_id,
const char *action, const char *userdata,
guint interval_ms, int timeout_ms,
int start_delay_ms, lrmd_key_value_t *params,
int *call_id)
{
int rc = pcmk_rc_ok;
if (lrm_state->conn == NULL) {
lrmd_key_value_freeall(params);
rc = ENOTCONN;
} else if (is_remote_lrmd_ra(NULL, NULL, rsc_id)) {
rc = controld_execute_remote_agent(lrm_state, rsc_id, action,
userdata, interval_ms, timeout_ms,
start_delay_ms, params, call_id);
} else {
rc = ((lrmd_t *) lrm_state->conn)->cmds->exec(lrm_state->conn, rsc_id,
action, userdata,
interval_ms, timeout_ms,
start_delay_ms,
lrmd_opt_notify_changes_only,
params);
if (rc < 0) {
rc = pcmk_legacy2rc(rc);
} else {
*call_id = rc;
rc = pcmk_rc_ok;
}
}
return rc;
}
int
lrm_state_register_rsc(lrm_state_t * lrm_state,
const char *rsc_id,
const char *class,
const char *provider, const char *agent, enum lrmd_call_options options)
{
lrmd_t *conn = (lrmd_t *) lrm_state->conn;
if (conn == NULL) {
return -ENOTCONN;
}
if (is_remote_lrmd_ra(agent, provider, NULL)) {
return lrm_state_find_or_create(rsc_id)? pcmk_ok : -EINVAL;
}
/* @TODO Implement an asynchronous version of this (currently a blocking
* call to the lrmd).
*/
return conn->cmds->register_rsc(lrm_state->conn, rsc_id, class, provider,
agent, options);
}
int
lrm_state_unregister_rsc(lrm_state_t * lrm_state,
const char *rsc_id, enum lrmd_call_options options)
{
if (!lrm_state->conn) {
return -ENOTCONN;
}
if (is_remote_lrmd_ra(NULL, NULL, rsc_id)) {
lrm_state_destroy(rsc_id);
return pcmk_ok;
}
g_hash_table_remove(lrm_state->rsc_info_cache, rsc_id);
/* @TODO Optimize this ... this function is a blocking round trip from
* client to daemon. The controld_execd_state.c code path that uses this
* function should always treat it as an async operation. The executor API
* should make an async version available.
*/
return ((lrmd_t *) lrm_state->conn)->cmds->unregister_rsc(lrm_state->conn, rsc_id, options);
}
/*
* Functions for sending alerts via local executor connection
*/
static GList *crmd_alert_list = NULL;
void
crmd_unpack_alerts(xmlNode *alerts)
{
pe_free_alert_list(crmd_alert_list);
crmd_alert_list = pe_unpack_alerts(alerts);
}
void
crmd_alert_node_event(crm_node_t *node)
{
lrm_state_t *lrm_state;
if (crmd_alert_list == NULL) {
return;
}
lrm_state = lrm_state_find(fsa_our_uname);
if (lrm_state == NULL) {
return;
}
lrmd_send_node_alert((lrmd_t *) lrm_state->conn, crmd_alert_list,
node->uname, node->id, node->state);
}
void
crmd_alert_fencing_op(stonith_event_t * e)
{
char *desc;
lrm_state_t *lrm_state;
if (crmd_alert_list == NULL) {
return;
}
lrm_state = lrm_state_find(fsa_our_uname);
if (lrm_state == NULL) {
return;
}
desc = crm_strdup_printf("Operation %s of %s by %s for %s@%s: %s (ref=%s)",
e->action, e->target,
(e->executioner? e->executioner : "<no-one>"),
e->client_origin, e->origin,
pcmk_strerror(e->result), e->id);
lrmd_send_fencing_alert((lrmd_t *) lrm_state->conn, crmd_alert_list,
e->target, e->operation, desc, e->result);
free(desc);
}
void
crmd_alert_resource_op(const char *node, lrmd_event_data_t * op)
{
lrm_state_t *lrm_state;
if (crmd_alert_list == NULL) {
return;
}
lrm_state = lrm_state_find(fsa_our_uname);
if (lrm_state == NULL) {
return;
}
lrmd_send_resource_alert((lrmd_t *) lrm_state->conn, crmd_alert_list, node,
op);
}
diff --git a/daemons/controld/controld_remote_ra.c b/daemons/controld/controld_remote_ra.c
index e36df711c4..ffddd2f3cf 100644
--- a/daemons/controld/controld_remote_ra.c
+++ b/daemons/controld/controld_remote_ra.c
@@ -1,1337 +1,1340 @@
/*
* Copyright 2013-2021 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 <crm/crm.h>
#include <crm/msg_xml.h>
#include <crm/common/xml_internal.h>
#include <crm/lrmd.h>
#include <crm/lrmd_internal.h>
#include <crm/services.h>
#include <pacemaker-controld.h>
#define REMOTE_LRMD_RA "remote"
/* The max start timeout before cmd retry */
#define MAX_START_TIMEOUT_MS 10000
typedef struct remote_ra_cmd_s {
/*! the local node the cmd is issued from */
char *owner;
/*! the remote node the cmd is executed on */
char *rsc_id;
/*! the action to execute */
char *action;
/*! some string the client wants us to give it back */
char *userdata;
/*! start delay in ms */
int start_delay;
/*! timer id used for start delay. */
int delay_id;
/*! timeout in ms for cmd */
int timeout;
int remaining_timeout;
/*! recurring interval in ms */
guint interval_ms;
/*! interval timer id */
int interval_id;
int reported_success;
int monitor_timeout_id;
int takeover_timeout_id;
/*! action parameters */
lrmd_key_value_t *params;
pcmk__action_result_t result;
int call_id;
time_t start_time;
gboolean cancel;
} remote_ra_cmd_t;
enum remote_migration_status {
expect_takeover = 1,
takeover_complete,
};
typedef struct remote_ra_data_s {
crm_trigger_t *work;
remote_ra_cmd_t *cur_cmd;
GList *cmds;
GList *recurring_cmds;
enum remote_migration_status migrate_status;
gboolean active;
/* Maintenance mode is difficult to determine from the controller's context,
* so we have it signalled back with the transition from the scheduler.
*/
gboolean is_maintenance;
/* Similar for whether we are controlling a guest node or remote node.
* Fortunately there is a meta-attribute in the transition already and
* as the situation doesn't change over time we can use the
* resource start for noting down the information for later use when
* the attributes aren't at hand.
*/
gboolean controlling_guest;
} remote_ra_data_t;
static int handle_remote_ra_start(lrm_state_t * lrm_state, remote_ra_cmd_t * cmd, int timeout_ms);
static void handle_remote_ra_stop(lrm_state_t * lrm_state, remote_ra_cmd_t * cmd);
static GList *fail_all_monitor_cmds(GList * list);
static void
free_cmd(gpointer user_data)
{
remote_ra_cmd_t *cmd = user_data;
if (!cmd) {
return;
}
if (cmd->delay_id) {
g_source_remove(cmd->delay_id);
}
if (cmd->interval_id) {
g_source_remove(cmd->interval_id);
}
if (cmd->monitor_timeout_id) {
g_source_remove(cmd->monitor_timeout_id);
}
if (cmd->takeover_timeout_id) {
g_source_remove(cmd->takeover_timeout_id);
}
free(cmd->owner);
free(cmd->rsc_id);
free(cmd->action);
free(cmd->userdata);
pcmk__reset_result(&(cmd->result));
lrmd_key_value_freeall(cmd->params);
free(cmd);
}
static int
generate_callid(void)
{
static int remote_ra_callid = 0;
remote_ra_callid++;
if (remote_ra_callid <= 0) {
remote_ra_callid = 1;
}
return remote_ra_callid;
}
static gboolean
recurring_helper(gpointer data)
{
remote_ra_cmd_t *cmd = data;
lrm_state_t *connection_rsc = NULL;
cmd->interval_id = 0;
connection_rsc = lrm_state_find(cmd->rsc_id);
if (connection_rsc && connection_rsc->remote_ra_data) {
remote_ra_data_t *ra_data = connection_rsc->remote_ra_data;
ra_data->recurring_cmds = g_list_remove(ra_data->recurring_cmds, cmd);
ra_data->cmds = g_list_append(ra_data->cmds, cmd);
mainloop_set_trigger(ra_data->work);
}
return FALSE;
}
static gboolean
start_delay_helper(gpointer data)
{
remote_ra_cmd_t *cmd = data;
lrm_state_t *connection_rsc = NULL;
cmd->delay_id = 0;
connection_rsc = lrm_state_find(cmd->rsc_id);
if (connection_rsc && connection_rsc->remote_ra_data) {
remote_ra_data_t *ra_data = connection_rsc->remote_ra_data;
mainloop_set_trigger(ra_data->work);
}
return FALSE;
}
/*!
* \internal
* \brief Handle cluster communication related to pacemaker_remote node joining
*
* \param[in] node_name Name of newly integrated pacemaker_remote node
*/
static void
remote_node_up(const char *node_name)
{
int call_opt, call_id = 0;
xmlNode *update, *state;
crm_node_t *node;
enum controld_section_e section = controld_section_all;
CRM_CHECK(node_name != NULL, return);
crm_info("Announcing Pacemaker Remote node %s", node_name);
/* Clear node's entire state (resource history and transient attributes)
* other than shutdown locks. The transient attributes should and normally
* will be cleared when the node leaves, but since remote node state has a
* number of corner cases, clear them here as well, to be sure.
*/
call_opt = crmd_cib_smart_opt();
if (controld_shutdown_lock_enabled) {
section = controld_section_all_unlocked;
}
/* Purge node from attrd's memory */
update_attrd_remote_node_removed(node_name, NULL);
controld_delete_node_state(node_name, section, call_opt);
/* Clear node's probed attribute */
update_attrd(node_name, CRM_OP_PROBED, NULL, NULL, TRUE);
/* Ensure node is in the remote peer cache with member status */
node = crm_remote_peer_get(node_name);
CRM_CHECK(node != NULL, return);
pcmk__update_peer_state(__func__, node, CRM_NODE_MEMBER, 0);
/* pacemaker_remote nodes don't participate in the membership layer,
* so cluster nodes don't automatically get notified when they come and go.
* We send a cluster message to the DC, and update the CIB node state entry,
* so the DC will get it sooner (via message) or later (via CIB refresh),
* and any other interested parties can query the CIB.
*/
send_remote_state_message(node_name, TRUE);
update = create_xml_node(NULL, XML_CIB_TAG_STATUS);
state = create_node_state_update(node, node_update_cluster, update,
__func__);
/* Clear the XML_NODE_IS_FENCED flag in the node state. If the node ever
* needs to be fenced, this flag will allow various actions to determine
* whether the fencing has happened yet.
*/
crm_xml_add(state, XML_NODE_IS_FENCED, "0");
/* TODO: If the remote connection drops, and this (async) CIB update either
* failed or has not yet completed, later actions could mistakenly think the
* node has already been fenced (if the XML_NODE_IS_FENCED attribute was
* previously set, because it won't have been cleared). This could prevent
* actual fencing or allow recurring monitor failures to be cleared too
* soon. Ideally, we wouldn't rely on the CIB for the fenced status.
*/
fsa_cib_update(XML_CIB_TAG_STATUS, update, call_opt, call_id, NULL);
if (call_id < 0) {
crm_perror(LOG_WARNING, "%s CIB node state setup", node_name);
}
free_xml(update);
}
enum down_opts {
DOWN_KEEP_LRM,
DOWN_ERASE_LRM
};
/*!
* \internal
* \brief Handle cluster communication related to pacemaker_remote node leaving
*
* \param[in] node_name Name of lost node
* \param[in] opts Whether to keep or erase LRM history
*/
static void
remote_node_down(const char *node_name, const enum down_opts opts)
{
xmlNode *update;
int call_id = 0;
int call_opt = crmd_cib_smart_opt();
crm_node_t *node;
/* Purge node from attrd's memory */
update_attrd_remote_node_removed(node_name, NULL);
/* Normally, only node attributes should be erased, and the resource history
* should be kept until the node comes back up. However, after a successful
* fence, we want to clear the history as well, so we don't think resources
* are still running on the node.
*/
if (opts == DOWN_ERASE_LRM) {
controld_delete_node_state(node_name, controld_section_all, call_opt);
} else {
controld_delete_node_state(node_name, controld_section_attrs, call_opt);
}
/* Ensure node is in the remote peer cache with lost state */
node = crm_remote_peer_get(node_name);
CRM_CHECK(node != NULL, return);
pcmk__update_peer_state(__func__, node, CRM_NODE_LOST, 0);
/* Notify DC */
send_remote_state_message(node_name, FALSE);
/* Update CIB node state */
update = create_xml_node(NULL, XML_CIB_TAG_STATUS);
create_node_state_update(node, node_update_cluster, update, __func__);
fsa_cib_update(XML_CIB_TAG_STATUS, update, call_opt, call_id, NULL);
if (call_id < 0) {
crm_perror(LOG_ERR, "%s CIB node state update", node_name);
}
free_xml(update);
}
/*!
* \internal
* \brief Handle effects of a remote RA command on node state
*
* \param[in] cmd Completed remote RA command
*/
static void
check_remote_node_state(remote_ra_cmd_t *cmd)
{
/* Only successful actions can change node state */
if (cmd->result.exit_status != PCMK_OCF_OK) {
return;
}
if (pcmk__str_eq(cmd->action, "start", pcmk__str_casei)) {
remote_node_up(cmd->rsc_id);
} else if (pcmk__str_eq(cmd->action, "migrate_from", pcmk__str_casei)) {
/* After a successful migration, we don't need to do remote_node_up()
* because the DC already knows the node is up, and we don't want to
* clear LRM history etc. We do need to add the remote node to this
* host's remote peer cache, because (unless it happens to be DC)
* it hasn't been tracking the remote node, and other code relies on
* the cache to distinguish remote nodes from unseen cluster nodes.
*/
crm_node_t *node = crm_remote_peer_get(cmd->rsc_id);
CRM_CHECK(node != NULL, return);
pcmk__update_peer_state(__func__, node, CRM_NODE_MEMBER, 0);
} else if (pcmk__str_eq(cmd->action, "stop", pcmk__str_casei)) {
lrm_state_t *lrm_state = lrm_state_find(cmd->rsc_id);
remote_ra_data_t *ra_data = lrm_state? lrm_state->remote_ra_data : NULL;
if (ra_data) {
if (ra_data->migrate_status != takeover_complete) {
/* Stop means down if we didn't successfully migrate elsewhere */
remote_node_down(cmd->rsc_id, DOWN_KEEP_LRM);
} else if (AM_I_DC == FALSE) {
/* Only the connection host and DC track node state,
* so if the connection migrated elsewhere and we aren't DC,
* un-cache the node, so we don't have stale info
*/
crm_remote_peer_cache_remove(cmd->rsc_id);
}
}
}
/* We don't do anything for successful monitors, which is correct for
* routine recurring monitors, and for monitors on nodes where the
* connection isn't supposed to be (the cluster will stop the connection in
* that case). However, if the initial probe finds the connection already
* active on the node where we want it, we probably should do
* remote_node_up(). Unfortunately, we can't distinguish that case here.
* Given that connections have to be initiated by the cluster, the chance of
* that should be close to zero.
*/
}
static void
report_remote_ra_result(remote_ra_cmd_t * cmd)
{
lrmd_event_data_t op = { 0, };
check_remote_node_state(cmd);
op.type = lrmd_event_exec_complete;
op.rsc_id = cmd->rsc_id;
op.op_type = cmd->action;
op.user_data = cmd->userdata;
op.timeout = cmd->timeout;
op.interval_ms = cmd->interval_ms;
op.t_run = (unsigned int) cmd->start_time;
op.t_rcchange = (unsigned int) cmd->start_time;
lrmd__set_result(&op, cmd->result.exit_status, cmd->result.exec_status,
cmd->result.exit_reason);
if (cmd->reported_success && (cmd->result.exit_status != PCMK_OCF_OK)) {
op.t_rcchange = (unsigned int) time(NULL);
/* This edge case will likely never ever occur, but if it does the
* result is that a failure will not be processed correctly. This is only
* remotely possible because we are able to detect a connection resource's tcp
* connection has failed at any moment after start has completed. The actual
* recurring operation is just a connectivity ping.
*
* basically, we are not guaranteed that the first successful monitor op and
* a subsequent failed monitor op will not occur in the same timestamp. We have to
* make it look like the operations occurred at separate times though. */
if (op.t_rcchange == op.t_run) {
op.t_rcchange++;
}
}
if (cmd->params) {
lrmd_key_value_t *tmp;
op.params = pcmk__strkey_table(free, free);
for (tmp = cmd->params; tmp; tmp = tmp->next) {
g_hash_table_insert(op.params, strdup(tmp->key), strdup(tmp->value));
}
}
op.call_id = cmd->call_id;
op.remote_nodename = cmd->owner;
lrm_op_callback(&op);
if (op.params) {
g_hash_table_destroy(op.params);
}
lrmd__reset_result(&op);
}
static void
update_remaining_timeout(remote_ra_cmd_t * cmd)
{
cmd->remaining_timeout = ((cmd->timeout / 1000) - (time(NULL) - cmd->start_time)) * 1000;
}
static gboolean
retry_start_cmd_cb(gpointer data)
{
lrm_state_t *lrm_state = data;
remote_ra_data_t *ra_data = lrm_state->remote_ra_data;
remote_ra_cmd_t *cmd = NULL;
int rc = pcmk_rc_error;
if (!ra_data || !ra_data->cur_cmd) {
return FALSE;
}
cmd = ra_data->cur_cmd;
if (!pcmk__strcase_any_of(cmd->action, "start", "migrate_from", NULL)) {
return FALSE;
}
update_remaining_timeout(cmd);
if (cmd->remaining_timeout > 0) {
rc = handle_remote_ra_start(lrm_state, cmd, cmd->remaining_timeout);
}
if (rc != pcmk_rc_ok) {
report_remote_ra_result(cmd);
if (ra_data->cmds) {
mainloop_set_trigger(ra_data->work);
}
ra_data->cur_cmd = NULL;
free_cmd(cmd);
} else {
/* wait for connection event */
}
return FALSE;
}
static gboolean
connection_takeover_timeout_cb(gpointer data)
{
lrm_state_t *lrm_state = NULL;
remote_ra_cmd_t *cmd = data;
crm_info("takeover event timed out for node %s", cmd->rsc_id);
cmd->takeover_timeout_id = 0;
lrm_state = lrm_state_find(cmd->rsc_id);
handle_remote_ra_stop(lrm_state, cmd);
free_cmd(cmd);
return FALSE;
}
static gboolean
monitor_timeout_cb(gpointer data)
{
lrm_state_t *lrm_state = NULL;
remote_ra_cmd_t *cmd = data;
lrm_state = lrm_state_find(cmd->rsc_id);
crm_info("Timed out waiting for remote poke response from %s%s",
cmd->rsc_id, (lrm_state? "" : " (no LRM state)"));
cmd->monitor_timeout_id = 0;
pcmk__set_result(&(cmd->result), PCMK_OCF_UNKNOWN_ERROR, PCMK_EXEC_TIMEOUT,
- NULL);
+ "Remote executor did not respond");
if (lrm_state && lrm_state->remote_ra_data) {
remote_ra_data_t *ra_data = lrm_state->remote_ra_data;
if (ra_data->cur_cmd == cmd) {
ra_data->cur_cmd = NULL;
}
if (ra_data->cmds) {
mainloop_set_trigger(ra_data->work);
}
}
report_remote_ra_result(cmd);
free_cmd(cmd);
if(lrm_state) {
lrm_state_disconnect(lrm_state);
}
return FALSE;
}
static void
synthesize_lrmd_success(lrm_state_t *lrm_state, const char *rsc_id, const char *op_type)
{
lrmd_event_data_t op = { 0, };
if (lrm_state == NULL) {
/* if lrm_state not given assume local */
lrm_state = lrm_state_find(fsa_our_uname);
}
CRM_ASSERT(lrm_state != NULL);
op.type = lrmd_event_exec_complete;
op.rsc_id = rsc_id;
op.op_type = op_type;
op.t_run = (unsigned int) time(NULL);
op.t_rcchange = op.t_run;
op.call_id = generate_callid();
lrmd__set_result(&op, PCMK_OCF_OK, PCMK_EXEC_DONE, NULL);
process_lrm_event(lrm_state, &op, NULL, NULL);
}
void
remote_lrm_op_callback(lrmd_event_data_t * op)
{
gboolean cmd_handled = FALSE;
lrm_state_t *lrm_state = NULL;
remote_ra_data_t *ra_data = NULL;
remote_ra_cmd_t *cmd = NULL;
crm_debug("Processing '%s%s%s' event on remote connection to %s: %s "
"(%d) status=%s (%d)",
(op->op_type? op->op_type : ""), (op->op_type? " " : ""),
lrmd_event_type2str(op->type), op->remote_nodename,
services_ocf_exitcode_str(op->rc), op->rc,
pcmk_exec_status_str(op->op_status), op->op_status);
lrm_state = lrm_state_find(op->remote_nodename);
if (!lrm_state || !lrm_state->remote_ra_data) {
crm_debug("No state information found for remote connection event");
return;
}
ra_data = lrm_state->remote_ra_data;
if (op->type == lrmd_event_new_client) {
// Another client has connected to the remote daemon
if (ra_data->migrate_status == expect_takeover) {
// Great, we knew this was coming
ra_data->migrate_status = takeover_complete;
} else {
crm_err("Disconnecting from Pacemaker Remote node %s due to "
"unexpected client takeover", op->remote_nodename);
/* In this case, lrmd_tls_connection_destroy() will be called under the control of mainloop. */
/* Do not free lrm_state->conn yet. */
/* It'll be freed in the following stop action. */
lrm_state_disconnect_only(lrm_state);
}
return;
}
/* filter all EXEC events up */
if (op->type == lrmd_event_exec_complete) {
if (ra_data->migrate_status == takeover_complete) {
crm_debug("ignoring event, this connection is taken over by another node");
} else {
lrm_op_callback(op);
}
return;
}
if ((op->type == lrmd_event_disconnect) && (ra_data->cur_cmd == NULL)) {
if (ra_data->active == FALSE) {
crm_debug("Disconnection from Pacemaker Remote node %s complete",
lrm_state->node_name);
} else if (!remote_ra_is_in_maintenance(lrm_state)) {
crm_err("Lost connection to Pacemaker Remote node %s",
lrm_state->node_name);
ra_data->recurring_cmds = fail_all_monitor_cmds(ra_data->recurring_cmds);
ra_data->cmds = fail_all_monitor_cmds(ra_data->cmds);
} else {
crm_notice("Unmanaged Pacemaker Remote node %s disconnected",
lrm_state->node_name);
/* Do roughly what a 'stop' on the remote-resource would do */
handle_remote_ra_stop(lrm_state, NULL);
remote_node_down(lrm_state->node_name, DOWN_KEEP_LRM);
/* now fake the reply of a successful 'stop' */
synthesize_lrmd_success(NULL, lrm_state->node_name, "stop");
}
return;
}
if (!ra_data->cur_cmd) {
crm_debug("no event to match");
return;
}
cmd = ra_data->cur_cmd;
/* Start actions and migrate from actions complete after connection
* comes back to us. */
if (op->type == lrmd_event_connect && pcmk__strcase_any_of(cmd->action, "start",
"migrate_from", NULL)) {
if (op->connection_rc < 0) {
update_remaining_timeout(cmd);
if (op->connection_rc == -ENOKEY) {
// Hard error, don't retry
pcmk__set_result(&(cmd->result), PCMK_OCF_INVALID_PARAM,
PCMK_EXEC_ERROR,
"Authentication key not readable");
} else if (cmd->remaining_timeout > 3000) {
crm_trace("rescheduling start, remaining timeout %d", cmd->remaining_timeout);
g_timeout_add(1000, retry_start_cmd_cb, lrm_state);
return;
} else {
crm_trace("can't reschedule start, remaining timeout too small %d",
cmd->remaining_timeout);
pcmk__set_result(&(cmd->result), PCMK_OCF_UNKNOWN_ERROR,
- PCMK_EXEC_TIMEOUT, NULL);
+ PCMK_EXEC_TIMEOUT,
+ pcmk_strerror(op->connection_rc));
}
} else {
lrm_state_reset_tables(lrm_state, TRUE);
pcmk__set_result(&(cmd->result), PCMK_OCF_OK, PCMK_EXEC_DONE, NULL);
ra_data->active = TRUE;
}
crm_debug("Remote connection event matched %s action", cmd->action);
report_remote_ra_result(cmd);
cmd_handled = TRUE;
} else if (op->type == lrmd_event_poke && pcmk__str_eq(cmd->action, "monitor", pcmk__str_casei)) {
if (cmd->monitor_timeout_id) {
g_source_remove(cmd->monitor_timeout_id);
cmd->monitor_timeout_id = 0;
}
/* Only report success the first time, after that only worry about failures.
* For this function, if we get the poke pack, it is always a success. Pokes
* only fail if the send fails, or the response times out. */
if (!cmd->reported_success) {
pcmk__set_result(&(cmd->result), PCMK_OCF_OK, PCMK_EXEC_DONE, NULL);
report_remote_ra_result(cmd);
cmd->reported_success = 1;
}
crm_debug("Remote poke event matched %s action", cmd->action);
/* success, keep rescheduling if interval is present. */
if (cmd->interval_ms && (cmd->cancel == FALSE)) {
ra_data->recurring_cmds = g_list_append(ra_data->recurring_cmds, cmd);
cmd->interval_id = g_timeout_add(cmd->interval_ms,
recurring_helper, cmd);
cmd = NULL; /* prevent free */
}
cmd_handled = TRUE;
} else if (op->type == lrmd_event_disconnect && pcmk__str_eq(cmd->action, "monitor", pcmk__str_casei)) {
if (ra_data->active == TRUE && (cmd->cancel == FALSE)) {
pcmk__set_result(&(cmd->result), PCMK_OCF_UNKNOWN_ERROR,
- PCMK_EXEC_ERROR, NULL);
+ PCMK_EXEC_ERROR,
+ "Remote connection unexpectedly dropped "
+ "during monitor");
report_remote_ra_result(cmd);
crm_err("Remote connection to %s unexpectedly dropped during monitor",
lrm_state->node_name);
}
cmd_handled = TRUE;
} else if (op->type == lrmd_event_new_client && pcmk__str_eq(cmd->action, "stop", pcmk__str_casei)) {
handle_remote_ra_stop(lrm_state, cmd);
cmd_handled = TRUE;
} else {
crm_debug("Event did not match %s action", ra_data->cur_cmd->action);
}
if (cmd_handled) {
ra_data->cur_cmd = NULL;
if (ra_data->cmds) {
mainloop_set_trigger(ra_data->work);
}
free_cmd(cmd);
}
}
static void
handle_remote_ra_stop(lrm_state_t * lrm_state, remote_ra_cmd_t * cmd)
{
remote_ra_data_t *ra_data = NULL;
CRM_ASSERT(lrm_state);
ra_data = lrm_state->remote_ra_data;
if (ra_data->migrate_status != takeover_complete) {
/* delete pending ops when ever the remote connection is intentionally stopped */
g_hash_table_remove_all(lrm_state->pending_ops);
} else {
/* we no longer hold the history if this connection has been migrated,
* however, we keep metadata cache for future use */
lrm_state_reset_tables(lrm_state, FALSE);
}
ra_data->active = FALSE;
lrm_state_disconnect(lrm_state);
if (ra_data->cmds) {
g_list_free_full(ra_data->cmds, free_cmd);
}
if (ra_data->recurring_cmds) {
g_list_free_full(ra_data->recurring_cmds, free_cmd);
}
ra_data->cmds = NULL;
ra_data->recurring_cmds = NULL;
ra_data->cur_cmd = NULL;
if (cmd) {
pcmk__set_result(&(cmd->result), PCMK_OCF_OK, PCMK_EXEC_DONE, NULL);
report_remote_ra_result(cmd);
}
}
// \return Standard Pacemaker return code
static int
handle_remote_ra_start(lrm_state_t * lrm_state, remote_ra_cmd_t * cmd, int timeout_ms)
{
const char *server = NULL;
lrmd_key_value_t *tmp = NULL;
int port = 0;
remote_ra_data_t *ra_data = lrm_state->remote_ra_data;
int timeout_used = timeout_ms > MAX_START_TIMEOUT_MS ? MAX_START_TIMEOUT_MS : timeout_ms;
int rc = pcmk_rc_ok;
for (tmp = cmd->params; tmp; tmp = tmp->next) {
if (pcmk__strcase_any_of(tmp->key, XML_RSC_ATTR_REMOTE_RA_ADDR,
XML_RSC_ATTR_REMOTE_RA_SERVER, NULL)) {
server = tmp->value;
} else if (pcmk__str_eq(tmp->key, XML_RSC_ATTR_REMOTE_RA_PORT, pcmk__str_casei)) {
port = atoi(tmp->value);
} else if (pcmk__str_eq(tmp->key, CRM_META "_" XML_RSC_ATTR_CONTAINER, pcmk__str_casei)) {
ra_data->controlling_guest = TRUE;
}
}
rc = controld_connect_remote_executor(lrm_state, server, port,
timeout_used);
if (rc != pcmk_rc_ok) {
pcmk__set_result(&(cmd->result), PCMK_OCF_UNKNOWN_ERROR,
PCMK_EXEC_ERROR, pcmk_rc_str(rc));
}
return rc;
}
static gboolean
handle_remote_ra_exec(gpointer user_data)
{
int rc = 0;
lrm_state_t *lrm_state = user_data;
remote_ra_data_t *ra_data = lrm_state->remote_ra_data;
remote_ra_cmd_t *cmd;
GList *first = NULL;
if (ra_data->cur_cmd) {
/* still waiting on previous cmd */
return TRUE;
}
while (ra_data->cmds) {
first = ra_data->cmds;
cmd = first->data;
if (cmd->delay_id) {
/* still waiting for start delay timer to trip */
return TRUE;
}
ra_data->cmds = g_list_remove_link(ra_data->cmds, first);
g_list_free_1(first);
if (!strcmp(cmd->action, "start") || !strcmp(cmd->action, "migrate_from")) {
ra_data->migrate_status = 0;
if (handle_remote_ra_start(lrm_state, cmd,
cmd->timeout) == pcmk_rc_ok) {
/* take care of this later when we get async connection result */
crm_debug("Initiated async remote connection, %s action will complete after connect event",
cmd->action);
ra_data->cur_cmd = cmd;
return TRUE;
}
report_remote_ra_result(cmd);
} else if (!strcmp(cmd->action, "monitor")) {
if (lrm_state_is_connected(lrm_state) == TRUE) {
rc = lrm_state_poke_connection(lrm_state);
if (rc < 0) {
pcmk__set_result(&(cmd->result), PCMK_OCF_UNKNOWN_ERROR,
- PCMK_EXEC_ERROR, NULL);
+ PCMK_EXEC_ERROR, pcmk_strerror(rc));
}
} else {
rc = -1;
pcmk__set_result(&(cmd->result), PCMK_OCF_NOT_RUNNING,
- PCMK_EXEC_DONE, NULL);
+ PCMK_EXEC_DONE, "Remote connection inactive");
}
if (rc == 0) {
crm_debug("Poked Pacemaker Remote at node %s, waiting for async response",
cmd->rsc_id);
ra_data->cur_cmd = cmd;
cmd->monitor_timeout_id = g_timeout_add(cmd->timeout, monitor_timeout_cb, cmd);
return TRUE;
}
report_remote_ra_result(cmd);
} else if (!strcmp(cmd->action, "stop")) {
if (ra_data->migrate_status == expect_takeover) {
/* briefly wait on stop for the takeover event to occur. If the
* takeover event does not occur during the wait period, that's fine.
* It just means that the remote-node's lrm_status section is going to get
* cleared which will require all the resources running in the remote-node
* to be explicitly re-detected via probe actions. If the takeover does occur
* successfully, then we can leave the status section intact. */
cmd->takeover_timeout_id = g_timeout_add((cmd->timeout/2), connection_takeover_timeout_cb, cmd);
ra_data->cur_cmd = cmd;
return TRUE;
}
handle_remote_ra_stop(lrm_state, cmd);
} else if (!strcmp(cmd->action, "migrate_to")) {
ra_data->migrate_status = expect_takeover;
pcmk__set_result(&(cmd->result), PCMK_OCF_OK, PCMK_EXEC_DONE, NULL);
report_remote_ra_result(cmd);
} else if (pcmk__str_any_of(cmd->action, CRMD_ACTION_RELOAD,
CRMD_ACTION_RELOAD_AGENT, NULL)) {
/* Currently the only reloadable parameter is reconnect_interval,
* which is only used by the scheduler via the CIB, so reloads are a
* no-op.
*
* @COMPAT DC <2.1.0: We only need to check for "reload" in case
* we're in a rolling upgrade with a DC scheduling "reload" instead
* of "reload-agent". An OCF 1.1 "reload" would be a no-op anyway,
* so this would work for that purpose as well.
*/
pcmk__set_result(&(cmd->result), PCMK_OCF_OK, PCMK_EXEC_DONE, NULL);
report_remote_ra_result(cmd);
}
free_cmd(cmd);
}
return TRUE;
}
static void
remote_ra_data_init(lrm_state_t * lrm_state)
{
remote_ra_data_t *ra_data = NULL;
if (lrm_state->remote_ra_data) {
return;
}
ra_data = calloc(1, sizeof(remote_ra_data_t));
ra_data->work = mainloop_add_trigger(G_PRIORITY_HIGH, handle_remote_ra_exec, lrm_state);
lrm_state->remote_ra_data = ra_data;
}
void
remote_ra_cleanup(lrm_state_t * lrm_state)
{
remote_ra_data_t *ra_data = lrm_state->remote_ra_data;
if (!ra_data) {
return;
}
if (ra_data->cmds) {
g_list_free_full(ra_data->cmds, free_cmd);
}
if (ra_data->recurring_cmds) {
g_list_free_full(ra_data->recurring_cmds, free_cmd);
}
mainloop_destroy_trigger(ra_data->work);
free(ra_data);
lrm_state->remote_ra_data = NULL;
}
gboolean
is_remote_lrmd_ra(const char *agent, const char *provider, const char *id)
{
if (agent && provider && !strcmp(agent, REMOTE_LRMD_RA) && !strcmp(provider, "pacemaker")) {
return TRUE;
}
if (id && lrm_state_find(id) && !pcmk__str_eq(id, fsa_our_uname, pcmk__str_casei)) {
return TRUE;
}
return FALSE;
}
lrmd_rsc_info_t *
remote_ra_get_rsc_info(lrm_state_t * lrm_state, const char *rsc_id)
{
lrmd_rsc_info_t *info = NULL;
if ((lrm_state_find(rsc_id))) {
info = calloc(1, sizeof(lrmd_rsc_info_t));
info->id = strdup(rsc_id);
info->type = strdup(REMOTE_LRMD_RA);
info->standard = strdup(PCMK_RESOURCE_CLASS_OCF);
info->provider = strdup("pacemaker");
}
return info;
}
static gboolean
is_remote_ra_supported_action(const char *action)
{
return pcmk__str_any_of(action,
CRMD_ACTION_START,
CRMD_ACTION_STOP,
CRMD_ACTION_STATUS,
CRMD_ACTION_MIGRATE,
CRMD_ACTION_MIGRATED,
CRMD_ACTION_RELOAD_AGENT,
CRMD_ACTION_RELOAD,
NULL);
}
static GList *
fail_all_monitor_cmds(GList * list)
{
GList *rm_list = NULL;
remote_ra_cmd_t *cmd = NULL;
GList *gIter = NULL;
for (gIter = list; gIter != NULL; gIter = gIter->next) {
cmd = gIter->data;
if ((cmd->interval_ms > 0) && pcmk__str_eq(cmd->action, "monitor", pcmk__str_casei)) {
rm_list = g_list_append(rm_list, cmd);
}
}
for (gIter = rm_list; gIter != NULL; gIter = gIter->next) {
cmd = gIter->data;
pcmk__set_result(&(cmd->result), PCMK_OCF_UNKNOWN_ERROR,
- PCMK_EXEC_ERROR, NULL);
+ PCMK_EXEC_ERROR, "Lost connection to remote executor");
crm_trace("Pre-emptively failing %s %s (interval=%u, %s)",
cmd->action, cmd->rsc_id, cmd->interval_ms, cmd->userdata);
report_remote_ra_result(cmd);
list = g_list_remove(list, cmd);
free_cmd(cmd);
}
/* frees only the list data, not the cmds */
g_list_free(rm_list);
return list;
}
static GList *
remove_cmd(GList * list, const char *action, guint interval_ms)
{
remote_ra_cmd_t *cmd = NULL;
GList *gIter = NULL;
for (gIter = list; gIter != NULL; gIter = gIter->next) {
cmd = gIter->data;
if ((cmd->interval_ms == interval_ms)
&& pcmk__str_eq(cmd->action, action, pcmk__str_casei)) {
break;
}
cmd = NULL;
}
if (cmd) {
list = g_list_remove(list, cmd);
free_cmd(cmd);
}
return list;
}
int
remote_ra_cancel(lrm_state_t *lrm_state, const char *rsc_id,
const char *action, guint interval_ms)
{
lrm_state_t *connection_rsc = NULL;
remote_ra_data_t *ra_data = NULL;
connection_rsc = lrm_state_find(rsc_id);
if (!connection_rsc || !connection_rsc->remote_ra_data) {
return -EINVAL;
}
ra_data = connection_rsc->remote_ra_data;
ra_data->cmds = remove_cmd(ra_data->cmds, action, interval_ms);
ra_data->recurring_cmds = remove_cmd(ra_data->recurring_cmds, action,
interval_ms);
if (ra_data->cur_cmd &&
(ra_data->cur_cmd->interval_ms == interval_ms) &&
(pcmk__str_eq(ra_data->cur_cmd->action, action, pcmk__str_casei))) {
ra_data->cur_cmd->cancel = TRUE;
}
return 0;
}
static remote_ra_cmd_t *
handle_dup_monitor(remote_ra_data_t *ra_data, guint interval_ms,
const char *userdata)
{
GList *gIter = NULL;
remote_ra_cmd_t *cmd = NULL;
/* there are 3 places a potential duplicate monitor operation
* could exist.
* 1. recurring_cmds list. where the op is waiting for its next interval
* 2. cmds list, where the op is queued to get executed immediately
* 3. cur_cmd, which means the monitor op is in flight right now.
*/
if (interval_ms == 0) {
return NULL;
}
if (ra_data->cur_cmd &&
ra_data->cur_cmd->cancel == FALSE &&
(ra_data->cur_cmd->interval_ms == interval_ms) &&
pcmk__str_eq(ra_data->cur_cmd->action, "monitor", pcmk__str_casei)) {
cmd = ra_data->cur_cmd;
goto handle_dup;
}
for (gIter = ra_data->recurring_cmds; gIter != NULL; gIter = gIter->next) {
cmd = gIter->data;
if ((cmd->interval_ms == interval_ms)
&& pcmk__str_eq(cmd->action, "monitor", pcmk__str_casei)) {
goto handle_dup;
}
}
for (gIter = ra_data->cmds; gIter != NULL; gIter = gIter->next) {
cmd = gIter->data;
if ((cmd->interval_ms == interval_ms)
&& pcmk__str_eq(cmd->action, "monitor", pcmk__str_casei)) {
goto handle_dup;
}
}
return NULL;
handle_dup:
crm_trace("merging duplicate monitor cmd " PCMK__OP_FMT,
cmd->rsc_id, "monitor", interval_ms);
/* update the userdata */
if (userdata) {
free(cmd->userdata);
cmd->userdata = strdup(userdata);
}
/* if we've already reported success, generate a new call id */
if (cmd->reported_success) {
cmd->start_time = time(NULL);
cmd->call_id = generate_callid();
cmd->reported_success = 0;
}
/* if we have an interval_id set, that means we are in the process of
* waiting for this cmd's next interval. instead of waiting, cancel
* the timer and execute the action immediately */
if (cmd->interval_id) {
g_source_remove(cmd->interval_id);
cmd->interval_id = 0;
recurring_helper(cmd);
}
return cmd;
}
/*!
* \internal
* \brief Execute an action using the (internal) ocf:pacemaker:remote agent
*
* \param[in] lrm_state Executor state object for remote connection
* \param[in] rsc_id Connection resource ID
* \param[in] action Action to execute
* \param[in] userdata String to copy and pass to execution callback
* \param[in] interval_ms Action interval (in milliseconds)
* \param[in] timeout_ms Action timeout (in milliseconds)
* \param[in] start_delay_ms Delay (in milliseconds) before initiating action
* \param[in] params Connection resource parameters
* \param[out] call_id Where to store call ID on success
*
* \return Standard Pacemaker return code
* \note This takes ownership of \p params, which should not be used or freed
* after calling this function.
*/
int
controld_execute_remote_agent(lrm_state_t *lrm_state, const char *rsc_id,
const char *action, const char *userdata,
guint interval_ms, int timeout_ms,
int start_delay_ms, lrmd_key_value_t *params,
int *call_id)
{
lrm_state_t *connection_rsc = NULL;
remote_ra_cmd_t *cmd = NULL;
remote_ra_data_t *ra_data = NULL;
*call_id = 0;
CRM_CHECK((lrm_state != NULL) && (rsc_id != NULL) && (action != NULL)
&& (userdata != NULL) && (call_id != NULL),
lrmd_key_value_freeall(params); return EINVAL);
if (!is_remote_ra_supported_action(action)) {
lrmd_key_value_freeall(params);
return EOPNOTSUPP;
}
connection_rsc = lrm_state_find(rsc_id);
if (connection_rsc == NULL) {
lrmd_key_value_freeall(params);
return ENOTCONN;
}
remote_ra_data_init(connection_rsc);
ra_data = connection_rsc->remote_ra_data;
cmd = handle_dup_monitor(ra_data, interval_ms, userdata);
if (cmd) {
*call_id = cmd->call_id;
lrmd_key_value_freeall(params);
return pcmk_rc_ok;
}
cmd = calloc(1, sizeof(remote_ra_cmd_t));
if (cmd == NULL) {
lrmd_key_value_freeall(params);
return ENOMEM;
}
cmd->owner = strdup(lrm_state->node_name);
cmd->rsc_id = strdup(rsc_id);
cmd->action = strdup(action);
cmd->userdata = strdup(userdata);
if ((cmd->owner == NULL) || (cmd->rsc_id == NULL) || (cmd->action == NULL)
|| (cmd->userdata == NULL)) {
free_cmd(cmd);
lrmd_key_value_freeall(params);
return ENOMEM;
}
cmd->interval_ms = interval_ms;
cmd->timeout = timeout_ms;
cmd->start_delay = start_delay_ms;
cmd->params = params;
cmd->start_time = time(NULL);
cmd->call_id = generate_callid();
if (cmd->start_delay) {
cmd->delay_id = g_timeout_add(cmd->start_delay, start_delay_helper, cmd);
}
ra_data->cmds = g_list_append(ra_data->cmds, cmd);
mainloop_set_trigger(ra_data->work);
*call_id = cmd->call_id;
return pcmk_rc_ok;
}
/*!
* \internal
* \brief Immediately fail all monitors of a remote node, if proxied here
*
* \param[in] node_name Name of pacemaker_remote node
*/
void
remote_ra_fail(const char *node_name)
{
lrm_state_t *lrm_state = lrm_state_find(node_name);
if (lrm_state && lrm_state_is_connected(lrm_state)) {
remote_ra_data_t *ra_data = lrm_state->remote_ra_data;
crm_info("Failing monitors on Pacemaker Remote node %s", node_name);
ra_data->recurring_cmds = fail_all_monitor_cmds(ra_data->recurring_cmds);
ra_data->cmds = fail_all_monitor_cmds(ra_data->cmds);
}
}
/* A guest node fencing implied by host fencing looks like:
*
* <pseudo_event id="103" operation="stonith" operation_key="stonith-lxc1-off"
* on_node="lxc1" on_node_uuid="lxc1">
* <attributes CRM_meta_on_node="lxc1" CRM_meta_on_node_uuid="lxc1"
* CRM_meta_stonith_action="off" crm_feature_set="3.0.12"/>
* <downed>
* <node id="lxc1"/>
* </downed>
* </pseudo_event>
*/
#define XPATH_PSEUDO_FENCE "//" XML_GRAPH_TAG_PSEUDO_EVENT \
"[@" XML_LRM_ATTR_TASK "='stonith']/" XML_GRAPH_TAG_DOWNED \
"/" XML_CIB_TAG_NODE
/*!
* \internal
* \brief Check a pseudo-action for Pacemaker Remote node side effects
*
* \param[in] xml XML of pseudo-action to check
*/
void
remote_ra_process_pseudo(xmlNode *xml)
{
xmlXPathObjectPtr search = xpath_search(xml, XPATH_PSEUDO_FENCE);
if (numXpathResults(search) == 1) {
xmlNode *result = getXpathResult(search, 0);
/* Normally, we handle the necessary side effects of a guest node stop
* action when reporting the remote agent's result. However, if the stop
* is implied due to fencing, it will be a fencing pseudo-event, and
* there won't be a result to report. Handle that case here.
*
* This will result in a duplicate call to remote_node_down() if the
* guest stop was real instead of implied, but that shouldn't hurt.
*
* There is still one corner case that isn't handled: if a guest node
* isn't running any resources when its host is fenced, it will appear
* to be cleanly stopped, so there will be no pseudo-fence, and our
* peer cache state will be incorrect unless and until the guest is
* recovered.
*/
if (result) {
const char *remote = ID(result);
if (remote) {
remote_node_down(remote, DOWN_ERASE_LRM);
}
}
}
freeXpathObject(search);
}
static void
remote_ra_maintenance(lrm_state_t * lrm_state, gboolean maintenance)
{
remote_ra_data_t *ra_data = lrm_state->remote_ra_data;
xmlNode *update, *state;
int call_opt, call_id = 0;
crm_node_t *node;
call_opt = crmd_cib_smart_opt();
node = crm_remote_peer_get(lrm_state->node_name);
CRM_CHECK(node != NULL, return);
update = create_xml_node(NULL, XML_CIB_TAG_STATUS);
state = create_node_state_update(node, node_update_none, update,
__func__);
crm_xml_add(state, XML_NODE_IS_MAINTENANCE, maintenance?"1":"0");
fsa_cib_update(XML_CIB_TAG_STATUS, update, call_opt, call_id, NULL);
if (call_id < 0) {
crm_perror(LOG_WARNING, "%s CIB node state update failed", lrm_state->node_name);
} else {
/* TODO: still not 100% sure that async update will succeed ... */
ra_data->is_maintenance = maintenance;
}
free_xml(update);
}
#define XPATH_PSEUDO_MAINTENANCE "//" XML_GRAPH_TAG_PSEUDO_EVENT \
"[@" XML_LRM_ATTR_TASK "='" CRM_OP_MAINTENANCE_NODES "']/" \
XML_GRAPH_TAG_MAINTENANCE
/*!
* \internal
* \brief Check a pseudo-action holding updates for maintenance state
*
* \param[in] xml XML of pseudo-action to check
*/
void
remote_ra_process_maintenance_nodes(xmlNode *xml)
{
xmlXPathObjectPtr search = xpath_search(xml, XPATH_PSEUDO_MAINTENANCE);
if (numXpathResults(search) == 1) {
xmlNode *node;
int cnt = 0, cnt_remote = 0;
for (node =
first_named_child(getXpathResult(search, 0), XML_CIB_TAG_NODE);
node != NULL; node = pcmk__xml_next(node)) {
lrm_state_t *lrm_state = lrm_state_find(ID(node));
cnt++;
if (lrm_state && lrm_state->remote_ra_data &&
((remote_ra_data_t *) lrm_state->remote_ra_data)->active) {
int is_maint;
cnt_remote++;
pcmk__scan_min_int(crm_element_value(node, XML_NODE_IS_MAINTENANCE),
&is_maint, 0);
remote_ra_maintenance(lrm_state, is_maint);
}
}
crm_trace("Action holds %d nodes (%d remotes found) "
"adjusting maintenance-mode", cnt, cnt_remote);
}
freeXpathObject(search);
}
gboolean
remote_ra_is_in_maintenance(lrm_state_t * lrm_state)
{
remote_ra_data_t *ra_data = lrm_state->remote_ra_data;
return ra_data->is_maintenance;
}
gboolean
remote_ra_controlling_guest(lrm_state_t * lrm_state)
{
remote_ra_data_t *ra_data = lrm_state->remote_ra_data;
return ra_data->controlling_guest;
}
diff --git a/daemons/execd/execd_commands.c b/daemons/execd/execd_commands.c
index 5ca4735704..3390518759 100644
--- a/daemons/execd/execd_commands.c
+++ b/daemons/execd/execd_commands.c
@@ -1,2000 +1,2003 @@
/*
* Copyright 2012-2021 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 <glib.h>
// Check whether we have a high-resolution monotonic clock
#undef PCMK__TIME_USE_CGT
#if HAVE_DECL_CLOCK_MONOTONIC && defined(CLOCK_MONOTONIC)
# define PCMK__TIME_USE_CGT
# include <time.h> /* clock_gettime */
#endif
#include <unistd.h>
#include <crm/crm.h>
#include <crm/services.h>
#include <crm/services_internal.h>
#include <crm/common/mainloop.h>
#include <crm/common/ipc.h>
#include <crm/common/ipc_internal.h>
#include <crm/msg_xml.h>
#include "pacemaker-execd.h"
#define EXIT_REASON_MAX_LEN 128
GHashTable *rsc_list = NULL;
typedef struct lrmd_cmd_s {
int timeout;
guint interval_ms;
int start_delay;
int timeout_orig;
int call_id;
int call_opts;
/* Timer ids, must be removed on cmd destruction. */
int delay_id;
int stonith_recurring_id;
int rsc_deleted;
int service_flags;
char *client_id;
char *origin;
char *rsc_id;
char *action;
char *real_action;
char *userdata_str;
pcmk__action_result_t result;
/* We can track operation queue time and run time, to be saved with the CIB
* resource history (and displayed in cluster status). We need
* high-resolution monotonic time for this purpose, so we use
* clock_gettime(CLOCK_MONOTONIC, ...) (if available, otherwise this feature
* is disabled).
*
* However, we also need epoch timestamps for recording the time the command
* last ran and the time its return value last changed, for use in time
* displays (as opposed to interval calculations). We keep time_t values for
* this purpose.
*
* The last run time is used for both purposes, so we keep redundant
* monotonic and epoch values for this. Technically the two could represent
* different times, but since time_t has only second resolution and the
* values are used for distinct purposes, that is not significant.
*/
#ifdef PCMK__TIME_USE_CGT
/* Recurring and systemd operations may involve more than one executor
* command per operation, so they need info about the original and the most
* recent.
*/
struct timespec t_first_run; // When op first ran
struct timespec t_run; // When op most recently ran
struct timespec t_first_queue; // When op was first queued
struct timespec t_queue; // When op was most recently queued
#endif
time_t epoch_last_run; // Epoch timestamp of when op last ran
time_t epoch_rcchange; // Epoch timestamp of when rc last changed
bool first_notify_sent;
int last_notify_rc;
int last_notify_op_status;
int last_pid;
GHashTable *params;
} lrmd_cmd_t;
static void cmd_finalize(lrmd_cmd_t * cmd, lrmd_rsc_t * rsc);
static gboolean lrmd_rsc_dispatch(gpointer user_data);
static void cancel_all_recurring(lrmd_rsc_t * rsc, const char *client_id);
#ifdef PCMK__TIME_USE_CGT
/*!
* \internal
* \brief Check whether a struct timespec has been set
*
* \param[in] timespec Time to check
*
* \return true if timespec has been set (i.e. is nonzero), false otherwise
*/
static inline bool
time_is_set(struct timespec *timespec)
{
return (timespec != NULL) &&
((timespec->tv_sec != 0) || (timespec->tv_nsec != 0));
}
/*
* \internal
* \brief Set a timespec (and its original if unset) to the current time
*
* \param[out] t_current Where to store current time
* \param[out] t_orig Where to copy t_current if unset
*/
static void
get_current_time(struct timespec *t_current, struct timespec *t_orig)
{
clock_gettime(CLOCK_MONOTONIC, t_current);
if ((t_orig != NULL) && !time_is_set(t_orig)) {
*t_orig = *t_current;
}
}
/*!
* \internal
* \brief Return difference between two times in milliseconds
*
* \param[in] now More recent time (or NULL to use current time)
* \param[in] old Earlier time
*
* \return milliseconds difference (or 0 if old is NULL or unset)
*
* \note Can overflow on 32bit machines when the differences is around
* 24 days or more.
*/
static int
time_diff_ms(struct timespec *now, struct timespec *old)
{
int diff_ms = 0;
if (time_is_set(old)) {
struct timespec local_now = { 0, };
if (now == NULL) {
clock_gettime(CLOCK_MONOTONIC, &local_now);
now = &local_now;
}
diff_ms = (now->tv_sec - old->tv_sec) * 1000
+ (now->tv_nsec - old->tv_nsec) / 1000000;
}
return diff_ms;
}
/*!
* \internal
* \brief Reset a command's operation times to their original values.
*
* Reset a command's run and queued timestamps to the timestamps of the original
* command, so we report the entire time since then and not just the time since
* the most recent command (for recurring and systemd operations).
*
* \param[in] cmd Executor command object to reset
*
* \note It's not obvious what the queued time should be for a systemd
* start/stop operation, which might go like this:
* initial command queued 5ms, runs 3s
* monitor command queued 10ms, runs 10s
* monitor command queued 10ms, runs 10s
* Is the queued time for that operation 5ms, 10ms or 25ms? The current
* implementation will report 5ms. If it's 25ms, then we need to
* subtract 20ms from the total exec time so as not to count it twice.
* We can implement that later if it matters to anyone ...
*/
static void
cmd_original_times(lrmd_cmd_t * cmd)
{
cmd->t_run = cmd->t_first_run;
cmd->t_queue = cmd->t_first_queue;
}
#endif
static inline bool
action_matches(lrmd_cmd_t *cmd, const char *action, guint interval_ms)
{
return (cmd->interval_ms == interval_ms)
&& pcmk__str_eq(cmd->action, action, pcmk__str_casei);
}
static void
log_finished(lrmd_cmd_t * cmd, int exec_time, int queue_time)
{
char pid_str[32] = { 0, };
int log_level = LOG_INFO;
if (cmd->last_pid) {
snprintf(pid_str, 32, "%d", cmd->last_pid);
}
if (pcmk__str_eq(cmd->action, "monitor", pcmk__str_casei)) {
log_level = LOG_DEBUG;
}
#ifdef PCMK__TIME_USE_CGT
do_crm_log(log_level, "%s %s (call %d%s%s) exited with status %d"
" (execution time %dms, queue time %dms)",
cmd->rsc_id, cmd->action, cmd->call_id,
(cmd->last_pid? ", PID " : ""), pid_str,
cmd->result.exit_status, exec_time, queue_time);
#else
do_crm_log(log_level, "%s %s (call %d%s%s) exited with status %d",
cmd->rsc_id, cmd->action, cmd->call_id,
(cmd->last_pid? ", PID " : ""), pid_str,
cmd->result.exit_status);
#endif
}
static void
log_execute(lrmd_cmd_t * cmd)
{
int log_level = LOG_INFO;
if (pcmk__str_eq(cmd->action, "monitor", pcmk__str_casei)) {
log_level = LOG_DEBUG;
}
do_crm_log(log_level, "executing - rsc:%s action:%s call_id:%d",
cmd->rsc_id, cmd->action, cmd->call_id);
}
static const char *
normalize_action_name(lrmd_rsc_t * rsc, const char *action)
{
if (pcmk__str_eq(action, "monitor", pcmk__str_casei) &&
pcmk_is_set(pcmk_get_ra_caps(rsc->class), pcmk_ra_cap_status)) {
return "status";
}
return action;
}
static lrmd_rsc_t *
build_rsc_from_xml(xmlNode * msg)
{
xmlNode *rsc_xml = get_xpath_object("//" F_LRMD_RSC, msg, LOG_ERR);
lrmd_rsc_t *rsc = NULL;
rsc = calloc(1, sizeof(lrmd_rsc_t));
crm_element_value_int(msg, F_LRMD_CALLOPTS, &rsc->call_opts);
rsc->rsc_id = crm_element_value_copy(rsc_xml, F_LRMD_RSC_ID);
rsc->class = crm_element_value_copy(rsc_xml, F_LRMD_CLASS);
rsc->provider = crm_element_value_copy(rsc_xml, F_LRMD_PROVIDER);
rsc->type = crm_element_value_copy(rsc_xml, F_LRMD_TYPE);
rsc->work = mainloop_add_trigger(G_PRIORITY_HIGH, lrmd_rsc_dispatch, rsc);
rsc->st_probe_rc = -ENODEV; // if stonith, initialize to "not running"
return rsc;
}
static lrmd_cmd_t *
create_lrmd_cmd(xmlNode *msg, pcmk__client_t *client)
{
int call_options = 0;
xmlNode *rsc_xml = get_xpath_object("//" F_LRMD_RSC, msg, LOG_ERR);
lrmd_cmd_t *cmd = NULL;
cmd = calloc(1, sizeof(lrmd_cmd_t));
crm_element_value_int(msg, F_LRMD_CALLOPTS, &call_options);
cmd->call_opts = call_options;
cmd->client_id = strdup(client->id);
crm_element_value_int(msg, F_LRMD_CALLID, &cmd->call_id);
crm_element_value_ms(rsc_xml, F_LRMD_RSC_INTERVAL, &cmd->interval_ms);
crm_element_value_int(rsc_xml, F_LRMD_TIMEOUT, &cmd->timeout);
crm_element_value_int(rsc_xml, F_LRMD_RSC_START_DELAY, &cmd->start_delay);
cmd->timeout_orig = cmd->timeout;
cmd->origin = crm_element_value_copy(rsc_xml, F_LRMD_ORIGIN);
cmd->action = crm_element_value_copy(rsc_xml, F_LRMD_RSC_ACTION);
cmd->userdata_str = crm_element_value_copy(rsc_xml, F_LRMD_RSC_USERDATA_STR);
cmd->rsc_id = crm_element_value_copy(rsc_xml, F_LRMD_RSC_ID);
cmd->params = xml2list(rsc_xml);
if (pcmk__str_eq(g_hash_table_lookup(cmd->params, "CRM_meta_on_fail"), "block", pcmk__str_casei)) {
crm_debug("Setting flag to leave pid group on timeout and "
"only kill action pid for " PCMK__OP_FMT,
cmd->rsc_id, cmd->action, cmd->interval_ms);
cmd->service_flags = pcmk__set_flags_as(__func__, __LINE__,
LOG_TRACE, "Action",
cmd->action, 0,
SVC_ACTION_LEAVE_GROUP,
"SVC_ACTION_LEAVE_GROUP");
}
return cmd;
}
static void
stop_recurring_timer(lrmd_cmd_t *cmd)
{
if (cmd) {
if (cmd->stonith_recurring_id) {
g_source_remove(cmd->stonith_recurring_id);
}
cmd->stonith_recurring_id = 0;
}
}
static void
free_lrmd_cmd(lrmd_cmd_t * cmd)
{
stop_recurring_timer(cmd);
if (cmd->delay_id) {
g_source_remove(cmd->delay_id);
}
if (cmd->params) {
g_hash_table_destroy(cmd->params);
}
pcmk__reset_result(&(cmd->result));
free(cmd->origin);
free(cmd->action);
free(cmd->real_action);
free(cmd->userdata_str);
free(cmd->rsc_id);
free(cmd->client_id);
free(cmd);
}
static gboolean
stonith_recurring_op_helper(gpointer data)
{
lrmd_cmd_t *cmd = data;
lrmd_rsc_t *rsc;
cmd->stonith_recurring_id = 0;
if (!cmd->rsc_id) {
return FALSE;
}
rsc = g_hash_table_lookup(rsc_list, cmd->rsc_id);
CRM_ASSERT(rsc != NULL);
/* take it out of recurring_ops list, and put it in the pending ops
* to be executed */
rsc->recurring_ops = g_list_remove(rsc->recurring_ops, cmd);
rsc->pending_ops = g_list_append(rsc->pending_ops, cmd);
#ifdef PCMK__TIME_USE_CGT
get_current_time(&(cmd->t_queue), &(cmd->t_first_queue));
#endif
mainloop_set_trigger(rsc->work);
return FALSE;
}
static inline void
start_recurring_timer(lrmd_cmd_t *cmd)
{
if (cmd && (cmd->interval_ms > 0)) {
cmd->stonith_recurring_id = g_timeout_add(cmd->interval_ms,
stonith_recurring_op_helper,
cmd);
}
}
static gboolean
start_delay_helper(gpointer data)
{
lrmd_cmd_t *cmd = data;
lrmd_rsc_t *rsc = NULL;
cmd->delay_id = 0;
rsc = cmd->rsc_id ? g_hash_table_lookup(rsc_list, cmd->rsc_id) : NULL;
if (rsc) {
mainloop_set_trigger(rsc->work);
}
return FALSE;
}
/*!
* \internal
* \brief Check whether a list already contains the equivalent of a given action
*/
static lrmd_cmd_t *
find_duplicate_action(GList *action_list, lrmd_cmd_t *cmd)
{
for (GList *item = action_list; item != NULL; item = item->next) {
lrmd_cmd_t *dup = item->data;
if (action_matches(cmd, dup->action, dup->interval_ms)) {
return dup;
}
}
return NULL;
}
static bool
merge_recurring_duplicate(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
{
lrmd_cmd_t * dup = NULL;
bool dup_pending = true;
if (cmd->interval_ms == 0) {
return false;
}
// Search for a duplicate of this action (in-flight or not)
dup = find_duplicate_action(rsc->pending_ops, cmd);
if (dup == NULL) {
dup_pending = false;
dup = find_duplicate_action(rsc->recurring_ops, cmd);
if (dup == NULL) {
return false;
}
}
/* Do not merge fencing monitors marked for cancellation, so we can reply to
* the cancellation separately.
*/
if (pcmk__str_eq(rsc->class, PCMK_RESOURCE_CLASS_STONITH,
pcmk__str_casei)
&& (dup->result.exec_status == PCMK_EXEC_CANCELLED)) {
return false;
}
/* This should not occur. If it does, we need to investigate how something
* like this is possible in the controller.
*/
crm_warn("Duplicate recurring op entry detected (" PCMK__OP_FMT
"), merging with previous op entry",
rsc->rsc_id, normalize_action_name(rsc, dup->action),
dup->interval_ms);
// Merge new action's call ID and user data into existing action
dup->first_notify_sent = false;
free(dup->userdata_str);
dup->userdata_str = cmd->userdata_str;
cmd->userdata_str = NULL;
dup->call_id = cmd->call_id;
free_lrmd_cmd(cmd);
cmd = NULL;
/* If dup is not pending, that means it has already executed at least once
* and is waiting in the interval. In that case, stop waiting and initiate
* a new instance now.
*/
if (!dup_pending) {
if (pcmk__str_eq(rsc->class, PCMK_RESOURCE_CLASS_STONITH,
pcmk__str_casei)) {
stop_recurring_timer(dup);
stonith_recurring_op_helper(dup);
} else {
services_action_kick(rsc->rsc_id,
normalize_action_name(rsc, dup->action),
dup->interval_ms);
}
}
return true;
}
static void
schedule_lrmd_cmd(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
{
CRM_CHECK(cmd != NULL, return);
CRM_CHECK(rsc != NULL, return);
crm_trace("Scheduling %s on %s", cmd->action, rsc->rsc_id);
if (merge_recurring_duplicate(rsc, cmd)) {
// Equivalent of cmd has already been scheduled
return;
}
/* The controller expects the executor to automatically cancel
* recurring operations before a resource stops.
*/
if (pcmk__str_eq(cmd->action, "stop", pcmk__str_casei)) {
cancel_all_recurring(rsc, NULL);
}
rsc->pending_ops = g_list_append(rsc->pending_ops, cmd);
#ifdef PCMK__TIME_USE_CGT
get_current_time(&(cmd->t_queue), &(cmd->t_first_queue));
#endif
mainloop_set_trigger(rsc->work);
if (cmd->start_delay) {
cmd->delay_id = g_timeout_add(cmd->start_delay, start_delay_helper, cmd);
}
}
static xmlNode *
create_lrmd_reply(const char *origin, int rc, int call_id)
{
xmlNode *reply = create_xml_node(NULL, T_LRMD_REPLY);
crm_xml_add(reply, F_LRMD_ORIGIN, origin);
crm_xml_add_int(reply, F_LRMD_RC, rc);
crm_xml_add_int(reply, F_LRMD_CALLID, call_id);
return reply;
}
static void
send_client_notify(gpointer key, gpointer value, gpointer user_data)
{
xmlNode *update_msg = user_data;
pcmk__client_t *client = value;
int rc;
int log_level = LOG_WARNING;
const char *msg = NULL;
CRM_CHECK(client != NULL, return);
if (client->name == NULL) {
crm_trace("Skipping notification to client without name");
return;
}
if (pcmk_is_set(client->flags, pcmk__client_to_proxy)) {
/* We only want to notify clients of the executor IPC API. If we are
* running as Pacemaker Remote, we may have clients proxied to other
* IPC services in the cluster, so skip those.
*/
crm_trace("Skipping executor API notification to client %s",
pcmk__client_name(client));
return;
}
rc = lrmd_server_send_notify(client, update_msg);
if (rc == pcmk_rc_ok) {
return;
}
switch (rc) {
case ENOTCONN:
case EPIPE: // Client exited without waiting for notification
log_level = LOG_INFO;
msg = "Disconnected";
break;
default:
msg = pcmk_rc_str(rc);
break;
}
do_crm_log(log_level, "Could not notify client %s: %s " CRM_XS " rc=%d",
pcmk__client_name(client), msg, rc);
}
static void
send_cmd_complete_notify(lrmd_cmd_t * cmd)
{
xmlNode *notify = NULL;
#ifdef PCMK__TIME_USE_CGT
int exec_time = time_diff_ms(NULL, &(cmd->t_run));
int queue_time = time_diff_ms(&cmd->t_run, &(cmd->t_queue));
log_finished(cmd, exec_time, queue_time);
#else
log_finished(cmd, 0, 0);
#endif
/* if the first notify result for a cmd has already been sent earlier, and the
* the option to only send notifies on result changes is set. Check to see
* if the last result is the same as the new one. If so, suppress this update */
if (cmd->first_notify_sent && (cmd->call_opts & lrmd_opt_notify_changes_only)) {
if ((cmd->last_notify_rc == cmd->result.exit_status) &&
(cmd->last_notify_op_status == cmd->result.exec_status)) {
/* only send changes */
return;
}
}
cmd->first_notify_sent = true;
cmd->last_notify_rc = cmd->result.exit_status;
cmd->last_notify_op_status = cmd->result.exec_status;
notify = create_xml_node(NULL, T_LRMD_NOTIFY);
crm_xml_add(notify, F_LRMD_ORIGIN, __func__);
crm_xml_add_int(notify, F_LRMD_TIMEOUT, cmd->timeout);
crm_xml_add_ms(notify, F_LRMD_RSC_INTERVAL, cmd->interval_ms);
crm_xml_add_int(notify, F_LRMD_RSC_START_DELAY, cmd->start_delay);
crm_xml_add_int(notify, F_LRMD_EXEC_RC, cmd->result.exit_status);
crm_xml_add_int(notify, F_LRMD_OP_STATUS, cmd->result.exec_status);
crm_xml_add_int(notify, F_LRMD_CALLID, cmd->call_id);
crm_xml_add_int(notify, F_LRMD_RSC_DELETED, cmd->rsc_deleted);
crm_xml_add_ll(notify, F_LRMD_RSC_RUN_TIME,
(long long) cmd->epoch_last_run);
crm_xml_add_ll(notify, F_LRMD_RSC_RCCHANGE_TIME,
(long long) cmd->epoch_rcchange);
#ifdef PCMK__TIME_USE_CGT
crm_xml_add_int(notify, F_LRMD_RSC_EXEC_TIME, exec_time);
crm_xml_add_int(notify, F_LRMD_RSC_QUEUE_TIME, queue_time);
#endif
crm_xml_add(notify, F_LRMD_OPERATION, LRMD_OP_RSC_EXEC);
crm_xml_add(notify, F_LRMD_RSC_ID, cmd->rsc_id);
if(cmd->real_action) {
crm_xml_add(notify, F_LRMD_RSC_ACTION, cmd->real_action);
} else {
crm_xml_add(notify, F_LRMD_RSC_ACTION, cmd->action);
}
crm_xml_add(notify, F_LRMD_RSC_USERDATA_STR, cmd->userdata_str);
crm_xml_add(notify, F_LRMD_RSC_EXIT_REASON, cmd->result.exit_reason);
if (cmd->result.action_stderr != NULL) {
crm_xml_add(notify, F_LRMD_RSC_OUTPUT, cmd->result.action_stderr);
} else if (cmd->result.action_stdout != NULL) {
crm_xml_add(notify, F_LRMD_RSC_OUTPUT, cmd->result.action_stdout);
}
if (cmd->params) {
char *key = NULL;
char *value = NULL;
GHashTableIter iter;
xmlNode *args = create_xml_node(notify, XML_TAG_ATTRS);
g_hash_table_iter_init(&iter, cmd->params);
while (g_hash_table_iter_next(&iter, (gpointer *) & key, (gpointer *) & value)) {
hash2smartfield((gpointer) key, (gpointer) value, args);
}
}
if (cmd->client_id && (cmd->call_opts & lrmd_opt_notify_orig_only)) {
pcmk__client_t *client = pcmk__find_client_by_id(cmd->client_id);
if (client) {
send_client_notify(client->id, client, notify);
}
} else {
pcmk__foreach_ipc_client(send_client_notify, notify);
}
free_xml(notify);
}
static void
send_generic_notify(int rc, xmlNode * request)
{
if (pcmk__ipc_client_count() != 0) {
int call_id = 0;
xmlNode *notify = NULL;
xmlNode *rsc_xml = get_xpath_object("//" F_LRMD_RSC, request, LOG_ERR);
const char *rsc_id = crm_element_value(rsc_xml, F_LRMD_RSC_ID);
const char *op = crm_element_value(request, F_LRMD_OPERATION);
crm_element_value_int(request, F_LRMD_CALLID, &call_id);
notify = create_xml_node(NULL, T_LRMD_NOTIFY);
crm_xml_add(notify, F_LRMD_ORIGIN, __func__);
crm_xml_add_int(notify, F_LRMD_RC, rc);
crm_xml_add_int(notify, F_LRMD_CALLID, call_id);
crm_xml_add(notify, F_LRMD_OPERATION, op);
crm_xml_add(notify, F_LRMD_RSC_ID, rsc_id);
pcmk__foreach_ipc_client(send_client_notify, notify);
free_xml(notify);
}
}
static void
cmd_reset(lrmd_cmd_t * cmd)
{
cmd->last_pid = 0;
#ifdef PCMK__TIME_USE_CGT
memset(&cmd->t_run, 0, sizeof(cmd->t_run));
memset(&cmd->t_queue, 0, sizeof(cmd->t_queue));
#endif
cmd->epoch_last_run = 0;
pcmk__reset_result(&(cmd->result));
cmd->result.exec_status = PCMK_EXEC_DONE;
}
static void
cmd_finalize(lrmd_cmd_t * cmd, lrmd_rsc_t * rsc)
{
crm_trace("Resource operation rsc:%s action:%s completed (%p %p)", cmd->rsc_id, cmd->action,
rsc ? rsc->active : NULL, cmd);
if (rsc && (rsc->active == cmd)) {
rsc->active = NULL;
mainloop_set_trigger(rsc->work);
}
if (!rsc) {
cmd->rsc_deleted = 1;
}
/* reset original timeout so client notification has correct information */
cmd->timeout = cmd->timeout_orig;
send_cmd_complete_notify(cmd);
if ((cmd->interval_ms != 0)
&& (cmd->result.exec_status == PCMK_EXEC_CANCELLED)) {
if (rsc) {
rsc->recurring_ops = g_list_remove(rsc->recurring_ops, cmd);
rsc->pending_ops = g_list_remove(rsc->pending_ops, cmd);
}
free_lrmd_cmd(cmd);
} else if (cmd->interval_ms == 0) {
if (rsc) {
rsc->pending_ops = g_list_remove(rsc->pending_ops, cmd);
}
free_lrmd_cmd(cmd);
} else {
/* Clear all the values pertaining just to the last iteration of a recurring op. */
cmd_reset(cmd);
}
}
static int
ocf2uniform_rc(int rc)
{
switch (rc) {
case PCMK_OCF_DEGRADED:
case PCMK_OCF_DEGRADED_PROMOTED:
break;
default:
if (rc < 0 || rc > PCMK_OCF_FAILED_PROMOTED) {
return PCMK_OCF_UNKNOWN_ERROR;
}
}
return rc;
}
static int
stonith2uniform_rc(const char *action, int rc)
{
switch (rc) {
case pcmk_ok:
rc = PCMK_OCF_OK;
break;
case -ENODEV:
/* This should be possible only for probes in practice, but
* interpret for all actions to be safe.
*/
if (pcmk__str_eq(action, "monitor", pcmk__str_casei)) {
rc = PCMK_OCF_NOT_RUNNING;
} else if (pcmk__str_eq(action, "stop", pcmk__str_casei)) {
rc = PCMK_OCF_OK;
} else {
rc = PCMK_OCF_NOT_INSTALLED;
}
break;
case -EOPNOTSUPP:
rc = PCMK_OCF_UNIMPLEMENT_FEATURE;
break;
case -ETIME:
case -ETIMEDOUT:
rc = PCMK_OCF_TIMEOUT;
break;
default:
rc = PCMK_OCF_UNKNOWN_ERROR;
break;
}
return rc;
}
#if SUPPORT_NAGIOS
static int
nagios2uniform_rc(const char *action, int rc)
{
if (rc < 0) {
return PCMK_OCF_UNKNOWN_ERROR;
}
switch (rc) {
case NAGIOS_STATE_OK:
return PCMK_OCF_OK;
case NAGIOS_INSUFFICIENT_PRIV:
return PCMK_OCF_INSUFFICIENT_PRIV;
case NAGIOS_NOT_INSTALLED:
return PCMK_OCF_NOT_INSTALLED;
case NAGIOS_STATE_WARNING:
case NAGIOS_STATE_CRITICAL:
case NAGIOS_STATE_UNKNOWN:
case NAGIOS_STATE_DEPENDENT:
default:
return PCMK_OCF_UNKNOWN_ERROR;
}
return PCMK_OCF_UNKNOWN_ERROR;
}
#endif
static int
get_uniform_rc(const char *standard, const char *action, int rc)
{
if (pcmk__str_eq(standard, PCMK_RESOURCE_CLASS_OCF, pcmk__str_casei)) {
return ocf2uniform_rc(rc);
} else if (pcmk__str_eq(standard, PCMK_RESOURCE_CLASS_STONITH, pcmk__str_casei)) {
return stonith2uniform_rc(action, rc);
} else if (pcmk__str_eq(standard, PCMK_RESOURCE_CLASS_SYSTEMD, pcmk__str_casei)) {
return rc;
} else if (pcmk__str_eq(standard, PCMK_RESOURCE_CLASS_UPSTART, pcmk__str_casei)) {
return rc;
#if SUPPORT_NAGIOS
} else if (pcmk__str_eq(standard, PCMK_RESOURCE_CLASS_NAGIOS, pcmk__str_casei)) {
return nagios2uniform_rc(action, rc);
#endif
} else {
return services_get_ocf_exitcode(action, rc);
}
}
static int
action_get_uniform_rc(svc_action_t * action)
{
lrmd_cmd_t *cmd = action->cb_data;
return get_uniform_rc(action->standard, cmd->action, action->rc);
}
struct notify_new_client_data {
xmlNode *notify;
pcmk__client_t *new_client;
};
static void
notify_one_client(gpointer key, gpointer value, gpointer user_data)
{
pcmk__client_t *client = value;
struct notify_new_client_data *data = user_data;
if (!pcmk__str_eq(client->id, data->new_client->id, pcmk__str_casei)) {
send_client_notify(key, (gpointer) client, (gpointer) data->notify);
}
}
void
notify_of_new_client(pcmk__client_t *new_client)
{
struct notify_new_client_data data;
data.new_client = new_client;
data.notify = create_xml_node(NULL, T_LRMD_NOTIFY);
crm_xml_add(data.notify, F_LRMD_ORIGIN, __func__);
crm_xml_add(data.notify, F_LRMD_OPERATION, LRMD_OP_NEW_CLIENT);
pcmk__foreach_ipc_client(notify_one_client, &data);
free_xml(data.notify);
}
static char *
parse_exit_reason(const char *output)
{
const char *cur = NULL;
const char *last = NULL;
static int cookie_len = 0;
char *eol = NULL;
size_t reason_len = EXIT_REASON_MAX_LEN;
if (output == NULL) {
return NULL;
}
if (!cookie_len) {
cookie_len = strlen(PCMK_OCF_REASON_PREFIX);
}
cur = strstr(output, PCMK_OCF_REASON_PREFIX);
for (; cur != NULL; cur = strstr(cur, PCMK_OCF_REASON_PREFIX)) {
/* skip over the cookie delimiter string */
cur += cookie_len;
last = cur;
}
if (last == NULL) {
return NULL;
}
// Truncate everything after a new line, and limit reason string size
eol = strchr(last, '\n');
if (eol) {
reason_len = QB_MIN(reason_len, eol - last);
}
return strndup(last, reason_len);
}
void
client_disconnect_cleanup(const char *client_id)
{
GHashTableIter iter;
lrmd_rsc_t *rsc = NULL;
char *key = NULL;
g_hash_table_iter_init(&iter, rsc_list);
while (g_hash_table_iter_next(&iter, (gpointer *) & key, (gpointer *) & rsc)) {
if (rsc->call_opts & lrmd_opt_drop_recurring) {
/* This client is disconnecting, drop any recurring operations
* it may have initiated on the resource */
cancel_all_recurring(rsc, client_id);
}
}
}
static void
action_complete(svc_action_t * action)
{
lrmd_rsc_t *rsc;
lrmd_cmd_t *cmd = action->cb_data;
#ifdef PCMK__TIME_USE_CGT
const char *rclass = NULL;
bool goagain = false;
#endif
if (!cmd) {
crm_err("Completed executor action (%s) does not match any known operations",
action->id);
return;
}
#ifdef PCMK__TIME_USE_CGT
if (cmd->result.exit_status != action->rc) {
cmd->epoch_rcchange = time(NULL);
}
#endif
cmd->last_pid = action->pid;
pcmk__set_result(&(cmd->result), action_get_uniform_rc(action),
action->status, NULL);
rsc = cmd->rsc_id ? g_hash_table_lookup(rsc_list, cmd->rsc_id) : NULL;
#ifdef PCMK__TIME_USE_CGT
if (rsc && pcmk__str_eq(rsc->class, PCMK_RESOURCE_CLASS_SERVICE, pcmk__str_casei)) {
rclass = resources_find_service_class(rsc->type);
} else if(rsc) {
rclass = rsc->class;
}
if (pcmk__str_eq(rclass, PCMK_RESOURCE_CLASS_SYSTEMD, pcmk__str_casei)) {
if ((cmd->result.exit_status == PCMK_OCF_OK)
&& pcmk__strcase_any_of(cmd->action, "start", "stop", NULL)) {
/* systemd returns from start and stop actions after the action
* begins, not after it completes. We have to jump through a few
* hoops so that we don't report 'complete' to the rest of pacemaker
* until it's actually done.
*/
goagain = true;
cmd->real_action = cmd->action;
cmd->action = strdup("monitor");
} else if (cmd->real_action != NULL) {
// This is follow-up monitor to check whether start/stop completed
if ((cmd->result.exec_status == PCMK_EXEC_DONE)
&& (cmd->result.exit_status == PCMK_OCF_PENDING)) {
goagain = true;
} else if ((cmd->result.exit_status == PCMK_OCF_OK)
&& pcmk__str_eq(cmd->real_action, "stop", pcmk__str_casei)) {
goagain = true;
} else {
int time_sum = time_diff_ms(NULL, &(cmd->t_first_run));
int timeout_left = cmd->timeout_orig - time_sum;
crm_debug("%s systemd %s is now complete (elapsed=%dms, "
"remaining=%dms): %s (%d)",
cmd->rsc_id, cmd->real_action, time_sum, timeout_left,
services_ocf_exitcode_str(cmd->result.exit_status),
cmd->result.exit_status);
cmd_original_times(cmd);
// Monitors may return "not running", but start/stop shouldn't
if ((cmd->result.exec_status == PCMK_EXEC_DONE)
&& (cmd->result.exit_status == PCMK_OCF_NOT_RUNNING)) {
if (pcmk__str_eq(cmd->real_action, "start", pcmk__str_casei)) {
cmd->result.exit_status = PCMK_OCF_UNKNOWN_ERROR;
} else if (pcmk__str_eq(cmd->real_action, "stop", pcmk__str_casei)) {
cmd->result.exit_status = PCMK_OCF_OK;
}
}
}
}
}
#endif
#if SUPPORT_NAGIOS
if (rsc && pcmk__str_eq(rsc->class, PCMK_RESOURCE_CLASS_NAGIOS, pcmk__str_casei)) {
if (action_matches(cmd, "monitor", 0)
&& (cmd->result.exit_status == PCMK_OCF_OK)) {
/* Successfully executed --version for the nagios plugin */
cmd->result.exit_status = PCMK_OCF_NOT_RUNNING;
} else if (pcmk__str_eq(cmd->action, "start", pcmk__str_casei)
&& (cmd->result.exit_status != PCMK_OCF_OK)) {
#ifdef PCMK__TIME_USE_CGT
goagain = true;
#endif
}
}
#endif
#ifdef PCMK__TIME_USE_CGT
if (goagain) {
int time_sum = time_diff_ms(NULL, &(cmd->t_first_run));
int timeout_left = cmd->timeout_orig - time_sum;
int delay = cmd->timeout_orig / 10;
if(delay >= timeout_left && timeout_left > 20) {
delay = timeout_left/2;
}
delay = QB_MIN(2000, delay);
if (delay < timeout_left) {
cmd->start_delay = delay;
cmd->timeout = timeout_left;
if (cmd->result.exit_status == PCMK_OCF_OK) {
crm_debug("%s %s may still be in progress: re-scheduling (elapsed=%dms, remaining=%dms, start_delay=%dms)",
cmd->rsc_id, cmd->real_action, time_sum, timeout_left, delay);
} else if (cmd->result.exit_status == PCMK_OCF_PENDING) {
crm_info("%s %s is still in progress: re-scheduling (elapsed=%dms, remaining=%dms, start_delay=%dms)",
cmd->rsc_id, cmd->action, time_sum, timeout_left, delay);
} else {
crm_notice("%s %s failed '%s' (%d): re-scheduling (elapsed=%dms, remaining=%dms, start_delay=%dms)",
cmd->rsc_id, cmd->action,
services_ocf_exitcode_str(cmd->result.exit_status),
cmd->result.exit_status, time_sum, timeout_left,
delay);
}
cmd_reset(cmd);
if(rsc) {
rsc->active = NULL;
}
schedule_lrmd_cmd(rsc, cmd);
/* Don't finalize cmd, we're not done with it yet */
return;
} else {
crm_notice("Giving up on %s %s (rc=%d): timeout (elapsed=%dms, remaining=%dms)",
cmd->rsc_id,
(cmd->real_action? cmd->real_action : cmd->action),
cmd->result.exit_status, time_sum, timeout_left);
pcmk__set_result(&(cmd->result), PCMK_OCF_TIMEOUT,
- PCMK_EXEC_TIMEOUT, NULL);
+ PCMK_EXEC_TIMEOUT,
+ "Investigate reason for timeout, and adjust "
+ "configured operation timeout if necessary");
cmd_original_times(cmd);
}
}
#endif
pcmk__set_result_output(&(cmd->result),
action->stdout_data, action->stderr_data);
if (action->stderr_data) {
cmd->result.exit_reason = parse_exit_reason(action->stderr_data);
}
cmd_finalize(cmd, rsc);
}
/*!
* \internal
* \brief Determine operation status of a stonith operation
*
* Non-stonith resource operations get their operation status directly from the
* service library, but the fencer does not have an equivalent, so we must infer
* an operation status from the fencer API's return code.
*
* \param[in] action Name of action performed on stonith resource
* \param[in] interval_ms Action interval
* \param[in] rc Action result from fencer
*
* \return Operation status corresponding to fencer API return code
*/
static int
stonith_rc2status(const char *action, guint interval_ms, int rc)
{
int status = PCMK_EXEC_DONE;
switch (rc) {
case pcmk_ok:
break;
case -EOPNOTSUPP:
case -EPROTONOSUPPORT:
status = PCMK_EXEC_NOT_SUPPORTED;
break;
case -ETIME:
case -ETIMEDOUT:
status = PCMK_EXEC_TIMEOUT;
break;
case -ENOTCONN:
case -ECOMM:
// Couldn't talk to fencer
status = PCMK_EXEC_ERROR;
break;
case -ENODEV:
// The device is not registered with the fencer
status = PCMK_EXEC_ERROR;
break;
default:
break;
}
return status;
}
static void
stonith_action_complete(lrmd_cmd_t * cmd, int rc)
{
// This can be NULL if resource was removed before command completed
lrmd_rsc_t *rsc = g_hash_table_lookup(rsc_list, cmd->rsc_id);
cmd->result.exit_status = stonith2uniform_rc(cmd->action, rc);
/* This function may be called with status already set to cancelled, if a
* pending action was aborted. Otherwise, we need to determine status from
* the fencer return code.
*/
if (cmd->result.exec_status != PCMK_EXEC_CANCELLED) {
cmd->result.exec_status = stonith_rc2status(cmd->action,
cmd->interval_ms, rc);
// Certain successful actions change the known state of the resource
if ((rsc != NULL) && (cmd->result.exit_status == PCMK_OCF_OK)) {
if (pcmk__str_eq(cmd->action, "start", pcmk__str_casei)) {
rsc->st_probe_rc = pcmk_ok; // maps to PCMK_OCF_OK
} else if (pcmk__str_eq(cmd->action, "stop", pcmk__str_casei)) {
rsc->st_probe_rc = -ENODEV; // maps to PCMK_OCF_NOT_RUNNING
}
}
}
/* The recurring timer should not be running at this point in any case, but
* as a failsafe, stop it if it is.
*/
stop_recurring_timer(cmd);
/* Reschedule this command if appropriate. If a recurring command is *not*
* rescheduled, its status must be PCMK_EXEC_CANCELLED, otherwise it will
* not be removed from recurring_ops by cmd_finalize().
*/
if (rsc && (cmd->interval_ms > 0)
&& (cmd->result.exec_status != PCMK_EXEC_CANCELLED)) {
start_recurring_timer(cmd);
}
cmd_finalize(cmd, rsc);
}
static void
lrmd_stonith_callback(stonith_t * stonith, stonith_callback_data_t * data)
{
stonith_action_complete(data->userdata, data->rc);
}
void
stonith_connection_failed(void)
{
GHashTableIter iter;
GList *cmd_list = NULL;
GList *cmd_iter = NULL;
lrmd_rsc_t *rsc = NULL;
char *key = NULL;
g_hash_table_iter_init(&iter, rsc_list);
while (g_hash_table_iter_next(&iter, (gpointer *) & key, (gpointer *) & rsc)) {
if (pcmk__str_eq(rsc->class, PCMK_RESOURCE_CLASS_STONITH, pcmk__str_casei)) {
/* If we registered this fence device, we don't know whether the
* fencer still has the registration or not. Cause future probes to
* return PCMK_OCF_UNKNOWN_ERROR until the resource is stopped or
* started successfully. This is especially important if the
* controller also went away (possibly due to a cluster layer
* restart) and won't receive our client notification of any
* monitors finalized below.
*/
if (rsc->st_probe_rc == pcmk_ok) {
rsc->st_probe_rc = pcmk_err_generic;
}
if (rsc->active) {
cmd_list = g_list_append(cmd_list, rsc->active);
}
if (rsc->recurring_ops) {
cmd_list = g_list_concat(cmd_list, rsc->recurring_ops);
}
if (rsc->pending_ops) {
cmd_list = g_list_concat(cmd_list, rsc->pending_ops);
}
rsc->pending_ops = rsc->recurring_ops = NULL;
}
}
if (!cmd_list) {
return;
}
crm_err("Connection to fencer failed, finalizing %d pending operations",
g_list_length(cmd_list));
for (cmd_iter = cmd_list; cmd_iter; cmd_iter = cmd_iter->next) {
stonith_action_complete(cmd_iter->data, -ENOTCONN);
}
g_list_free(cmd_list);
}
/*!
* \internal
* \brief Execute a stonith resource "start" action
*
* Start a stonith resource by registering it with the fencer.
* (Stonith agents don't have a start command.)
*
* \param[in] stonith_api Connection to fencer
* \param[in] rsc Stonith resource to start
* \param[in] cmd Start command to execute
*
* \return pcmk_ok on success, -errno otherwise
*/
static int
execd_stonith_start(stonith_t *stonith_api, lrmd_rsc_t *rsc, lrmd_cmd_t *cmd)
{
char *key = NULL;
char *value = NULL;
stonith_key_value_t *device_params = NULL;
int rc = pcmk_ok;
// Convert command parameters to stonith API key/values
if (cmd->params) {
GHashTableIter iter;
g_hash_table_iter_init(&iter, cmd->params);
while (g_hash_table_iter_next(&iter, (gpointer *) & key, (gpointer *) & value)) {
device_params = stonith_key_value_add(device_params, key, value);
}
}
/* The fencer will automatically register devices via CIB notifications
* when the CIB changes, but to avoid a possible race condition between
* the fencer receiving the notification and the executor requesting that
* resource, the executor registers the device as well. The fencer knows how
* to handle duplicate registrations.
*/
rc = stonith_api->cmds->register_device(stonith_api, st_opt_sync_call,
cmd->rsc_id, rsc->provider,
rsc->type, device_params);
stonith_key_value_freeall(device_params, 1, 1);
return rc;
}
/*!
* \internal
* \brief Execute a stonith resource "stop" action
*
* Stop a stonith resource by unregistering it with the fencer.
* (Stonith agents don't have a stop command.)
*
* \param[in] stonith_api Connection to fencer
* \param[in] rsc Stonith resource to stop
*
* \return pcmk_ok on success, -errno otherwise
*/
static inline int
execd_stonith_stop(stonith_t *stonith_api, const lrmd_rsc_t *rsc)
{
/* @TODO Failure would indicate a problem communicating with fencer;
* perhaps we should try reconnecting and retrying a few times?
*/
return stonith_api->cmds->remove_device(stonith_api, st_opt_sync_call,
rsc->rsc_id);
}
/*!
* \internal
* \brief Initiate a stonith resource agent recurring "monitor" action
*
* \param[in] stonith_api Connection to fencer
* \param[in] rsc Stonith resource to monitor
* \param[in] cmd Monitor command being executed
*
* \return pcmk_ok if monitor was successfully initiated, -errno otherwise
*/
static inline int
execd_stonith_monitor(stonith_t *stonith_api, lrmd_rsc_t *rsc, lrmd_cmd_t *cmd)
{
int rc = stonith_api->cmds->monitor(stonith_api, 0, cmd->rsc_id,
cmd->timeout / 1000);
rc = stonith_api->cmds->register_callback(stonith_api, rc, 0, 0, cmd,
"lrmd_stonith_callback",
lrmd_stonith_callback);
if (rc == TRUE) {
rsc->active = cmd;
rc = pcmk_ok;
} else {
rc = -pcmk_err_generic;
}
return rc;
}
static void
lrmd_rsc_execute_stonith(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
{
int rc = 0;
bool do_monitor = FALSE;
stonith_t *stonith_api = get_stonith_connection();
if (!stonith_api) {
rc = -ENOTCONN;
} else if (pcmk__str_eq(cmd->action, "start", pcmk__str_casei)) {
rc = execd_stonith_start(stonith_api, rsc, cmd);
if (rc == 0) {
do_monitor = TRUE;
}
} else if (pcmk__str_eq(cmd->action, "stop", pcmk__str_casei)) {
rc = execd_stonith_stop(stonith_api, rsc);
} else if (pcmk__str_eq(cmd->action, "monitor", pcmk__str_casei)) {
if (cmd->interval_ms > 0) {
do_monitor = TRUE;
} else {
rc = rsc->st_probe_rc;
}
}
if (do_monitor) {
rc = execd_stonith_monitor(stonith_api, rsc, cmd);
if (rc == pcmk_ok) {
// Don't clean up yet, we will find out result of the monitor later
return;
}
}
stonith_action_complete(cmd, rc);
}
static int
lrmd_rsc_execute_service_lib(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
{
svc_action_t *action = NULL;
GHashTable *params_copy = NULL;
CRM_ASSERT(rsc);
CRM_ASSERT(cmd);
crm_trace("Creating action, resource:%s action:%s class:%s provider:%s agent:%s",
rsc->rsc_id, cmd->action, rsc->class, rsc->provider, rsc->type);
#if SUPPORT_NAGIOS
/* Recurring operations are cancelled anyway for a stop operation */
if (pcmk__str_eq(rsc->class, PCMK_RESOURCE_CLASS_NAGIOS, pcmk__str_casei)
&& pcmk__str_eq(cmd->action, "stop", pcmk__str_casei)) {
cmd->result.exit_status = PCMK_OCF_OK;
goto exec_done;
}
#endif
params_copy = pcmk__str_table_dup(cmd->params);
action = services__create_resource_action(rsc->rsc_id, rsc->class, rsc->provider,
rsc->type,
normalize_action_name(rsc, cmd->action),
cmd->interval_ms, cmd->timeout,
params_copy, cmd->service_flags);
if (!action) {
+ // Invalid arguments (which would be a bug) or out-of-memory
crm_err("Failed to create action, action:%s on resource %s", cmd->action, rsc->rsc_id);
pcmk__set_result(&(cmd->result), PCMK_OCF_UNKNOWN_ERROR,
- PCMK_EXEC_ERROR, NULL);
+ PCMK_EXEC_ERROR, "Internal Pacemaker error");
goto exec_done;
}
if (action->rc != PCMK_OCF_OK) {
pcmk__set_result(&(cmd->result), action->rc, action->status, NULL);
services_action_free(action);
goto exec_done;
}
action->cb_data = cmd;
/* 'cmd' may not be valid after this point if
* services_action_async() returned TRUE
*
* Upstart and systemd both synchronously determine monitor/status
* results and call action_complete (which may free 'cmd') if necessary.
*/
if (services_action_async(action, action_complete)) {
return TRUE;
}
if (action->status == PCMK_EXEC_DONE) {
action->status = PCMK_EXEC_ERROR;
}
pcmk__set_result(&(cmd->result), action->rc, action->status, NULL);
services_action_free(action);
action = NULL;
exec_done:
cmd_finalize(cmd, rsc);
return TRUE;
}
static gboolean
lrmd_rsc_execute(lrmd_rsc_t * rsc)
{
lrmd_cmd_t *cmd = NULL;
CRM_CHECK(rsc != NULL, return FALSE);
if (rsc->active) {
crm_trace("%s is still active", rsc->rsc_id);
return TRUE;
}
if (rsc->pending_ops) {
GList *first = rsc->pending_ops;
cmd = first->data;
if (cmd->delay_id) {
crm_trace
("Command %s %s was asked to run too early, waiting for start_delay timeout of %dms",
cmd->rsc_id, cmd->action, cmd->start_delay);
return TRUE;
}
rsc->pending_ops = g_list_remove_link(rsc->pending_ops, first);
g_list_free_1(first);
#ifdef PCMK__TIME_USE_CGT
get_current_time(&(cmd->t_run), &(cmd->t_first_run));
#endif
cmd->epoch_last_run = time(NULL);
}
if (!cmd) {
crm_trace("Nothing further to do for %s", rsc->rsc_id);
return TRUE;
}
rsc->active = cmd; /* only one op at a time for a rsc */
if (cmd->interval_ms) {
rsc->recurring_ops = g_list_append(rsc->recurring_ops, cmd);
}
log_execute(cmd);
if (pcmk__str_eq(rsc->class, PCMK_RESOURCE_CLASS_STONITH, pcmk__str_casei)) {
lrmd_rsc_execute_stonith(rsc, cmd);
} else {
lrmd_rsc_execute_service_lib(rsc, cmd);
}
return TRUE;
}
static gboolean
lrmd_rsc_dispatch(gpointer user_data)
{
return lrmd_rsc_execute(user_data);
}
void
free_rsc(gpointer data)
{
GList *gIter = NULL;
lrmd_rsc_t *rsc = data;
int is_stonith = pcmk__str_eq(rsc->class, PCMK_RESOURCE_CLASS_STONITH,
pcmk__str_casei);
gIter = rsc->pending_ops;
while (gIter != NULL) {
GList *next = gIter->next;
lrmd_cmd_t *cmd = gIter->data;
/* command was never executed */
cmd->result.exec_status = PCMK_EXEC_CANCELLED;
cmd_finalize(cmd, NULL);
gIter = next;
}
/* frees list, but not list elements. */
g_list_free(rsc->pending_ops);
gIter = rsc->recurring_ops;
while (gIter != NULL) {
GList *next = gIter->next;
lrmd_cmd_t *cmd = gIter->data;
if (is_stonith) {
cmd->result.exec_status = PCMK_EXEC_CANCELLED;
/* If a stonith command is in-flight, just mark it as cancelled;
* it is not safe to finalize/free the cmd until the stonith api
* says it has either completed or timed out.
*/
if (rsc->active != cmd) {
cmd_finalize(cmd, NULL);
}
} else {
/* This command is already handed off to service library,
* let service library cancel it and tell us via the callback
* when it is cancelled. The rsc can be safely destroyed
* even if we are waiting for the cancel result */
services_action_cancel(rsc->rsc_id,
normalize_action_name(rsc, cmd->action),
cmd->interval_ms);
}
gIter = next;
}
/* frees list, but not list elements. */
g_list_free(rsc->recurring_ops);
free(rsc->rsc_id);
free(rsc->class);
free(rsc->provider);
free(rsc->type);
mainloop_destroy_trigger(rsc->work);
free(rsc);
}
static int
process_lrmd_signon(pcmk__client_t *client, xmlNode *request, int call_id,
xmlNode **reply)
{
int rc = pcmk_ok;
const char *is_ipc_provider = crm_element_value(request, F_LRMD_IS_IPC_PROVIDER);
const char *protocol_version = crm_element_value(request, F_LRMD_PROTOCOL_VERSION);
if (compare_version(protocol_version, LRMD_MIN_PROTOCOL_VERSION) < 0) {
crm_err("Cluster API version must be greater than or equal to %s, not %s",
LRMD_MIN_PROTOCOL_VERSION, protocol_version);
rc = -EPROTO;
}
if (crm_is_true(is_ipc_provider)) {
#ifdef PCMK__COMPILE_REMOTE
if ((client->remote != NULL) && client->remote->tls_handshake_complete) {
// This is a remote connection from a cluster node's controller
ipc_proxy_add_provider(client);
} else {
rc = -EACCES;
}
#else
rc = -EPROTONOSUPPORT;
#endif
}
*reply = create_lrmd_reply(__func__, rc, call_id);
crm_xml_add(*reply, F_LRMD_OPERATION, CRM_OP_REGISTER);
crm_xml_add(*reply, F_LRMD_CLIENTID, client->id);
crm_xml_add(*reply, F_LRMD_PROTOCOL_VERSION, LRMD_PROTOCOL_VERSION);
return rc;
}
static int
process_lrmd_rsc_register(pcmk__client_t *client, uint32_t id, xmlNode *request)
{
int rc = pcmk_ok;
lrmd_rsc_t *rsc = build_rsc_from_xml(request);
lrmd_rsc_t *dup = g_hash_table_lookup(rsc_list, rsc->rsc_id);
if (dup &&
pcmk__str_eq(rsc->class, dup->class, pcmk__str_casei) &&
pcmk__str_eq(rsc->provider, dup->provider, pcmk__str_casei) && pcmk__str_eq(rsc->type, dup->type, pcmk__str_casei)) {
crm_notice("Ignoring duplicate registration of '%s'", rsc->rsc_id);
free_rsc(rsc);
return rc;
}
g_hash_table_replace(rsc_list, rsc->rsc_id, rsc);
crm_info("Cached agent information for '%s'", rsc->rsc_id);
return rc;
}
static xmlNode *
process_lrmd_get_rsc_info(xmlNode *request, int call_id)
{
int rc = pcmk_ok;
xmlNode *rsc_xml = get_xpath_object("//" F_LRMD_RSC, request, LOG_ERR);
const char *rsc_id = crm_element_value(rsc_xml, F_LRMD_RSC_ID);
xmlNode *reply = NULL;
lrmd_rsc_t *rsc = NULL;
if (rsc_id == NULL) {
rc = -ENODEV;
} else {
rsc = g_hash_table_lookup(rsc_list, rsc_id);
if (rsc == NULL) {
crm_info("Agent information for '%s' not in cache", rsc_id);
rc = -ENODEV;
}
}
reply = create_lrmd_reply(__func__, rc, call_id);
if (rsc) {
crm_xml_add(reply, F_LRMD_RSC_ID, rsc->rsc_id);
crm_xml_add(reply, F_LRMD_CLASS, rsc->class);
crm_xml_add(reply, F_LRMD_PROVIDER, rsc->provider);
crm_xml_add(reply, F_LRMD_TYPE, rsc->type);
}
return reply;
}
static int
process_lrmd_rsc_unregister(pcmk__client_t *client, uint32_t id,
xmlNode *request)
{
int rc = pcmk_ok;
lrmd_rsc_t *rsc = NULL;
xmlNode *rsc_xml = get_xpath_object("//" F_LRMD_RSC, request, LOG_ERR);
const char *rsc_id = crm_element_value(rsc_xml, F_LRMD_RSC_ID);
if (!rsc_id) {
return -ENODEV;
}
rsc = g_hash_table_lookup(rsc_list, rsc_id);
if (rsc == NULL) {
crm_info("Ignoring unregistration of resource '%s', which is not registered",
rsc_id);
return pcmk_ok;
}
if (rsc->active) {
/* let the caller know there are still active ops on this rsc to watch for */
crm_trace("Operation (0x%p) still in progress for unregistered resource %s",
rsc->active, rsc_id);
rc = -EINPROGRESS;
}
g_hash_table_remove(rsc_list, rsc_id);
return rc;
}
static int
process_lrmd_rsc_exec(pcmk__client_t *client, uint32_t id, xmlNode *request)
{
lrmd_rsc_t *rsc = NULL;
lrmd_cmd_t *cmd = NULL;
xmlNode *rsc_xml = get_xpath_object("//" F_LRMD_RSC, request, LOG_ERR);
const char *rsc_id = crm_element_value(rsc_xml, F_LRMD_RSC_ID);
int call_id;
if (!rsc_id) {
return -EINVAL;
}
if (!(rsc = g_hash_table_lookup(rsc_list, rsc_id))) {
crm_info("Resource '%s' not found (%d active resources)",
rsc_id, g_hash_table_size(rsc_list));
return -ENODEV;
}
cmd = create_lrmd_cmd(request, client);
call_id = cmd->call_id;
/* Don't reference cmd after handing it off to be scheduled.
* The cmd could get merged and freed. */
schedule_lrmd_cmd(rsc, cmd);
return call_id;
}
static int
cancel_op(const char *rsc_id, const char *action, guint interval_ms)
{
GList *gIter = NULL;
lrmd_rsc_t *rsc = g_hash_table_lookup(rsc_list, rsc_id);
/* How to cancel an action.
* 1. Check pending ops list, if it hasn't been handed off
* to the service library or stonith recurring list remove
* it there and that will stop it.
* 2. If it isn't in the pending ops list, then it's either a
* recurring op in the stonith recurring list, or the service
* library's recurring list. Stop it there
* 3. If not found in any lists, then this operation has either
* been executed already and is not a recurring operation, or
* never existed.
*/
if (!rsc) {
return -ENODEV;
}
for (gIter = rsc->pending_ops; gIter != NULL; gIter = gIter->next) {
lrmd_cmd_t *cmd = gIter->data;
if (action_matches(cmd, action, interval_ms)) {
cmd->result.exec_status = PCMK_EXEC_CANCELLED;
cmd_finalize(cmd, rsc);
return pcmk_ok;
}
}
if (pcmk__str_eq(rsc->class, PCMK_RESOURCE_CLASS_STONITH, pcmk__str_casei)) {
/* The service library does not handle stonith operations.
* We have to handle recurring stonith operations ourselves. */
for (gIter = rsc->recurring_ops; gIter != NULL; gIter = gIter->next) {
lrmd_cmd_t *cmd = gIter->data;
if (action_matches(cmd, action, interval_ms)) {
cmd->result.exec_status = PCMK_EXEC_CANCELLED;
if (rsc->active != cmd) {
cmd_finalize(cmd, rsc);
}
return pcmk_ok;
}
}
} else if (services_action_cancel(rsc_id,
normalize_action_name(rsc, action),
interval_ms) == TRUE) {
/* The service library will tell the action_complete callback function
* this action was cancelled, which will destroy the cmd and remove
* it from the recurring_op list. Do not do that in this function
* if the service library says it cancelled it. */
return pcmk_ok;
}
return -EOPNOTSUPP;
}
static void
cancel_all_recurring(lrmd_rsc_t * rsc, const char *client_id)
{
GList *cmd_list = NULL;
GList *cmd_iter = NULL;
/* Notice a copy of each list is created when concat is called.
* This prevents odd behavior from occurring when the cmd_list
* is iterated through later on. It is possible the cancel_op
* function may end up modifying the recurring_ops and pending_ops
* lists. If we did not copy those lists, our cmd_list iteration
* could get messed up.*/
if (rsc->recurring_ops) {
cmd_list = g_list_concat(cmd_list, g_list_copy(rsc->recurring_ops));
}
if (rsc->pending_ops) {
cmd_list = g_list_concat(cmd_list, g_list_copy(rsc->pending_ops));
}
if (!cmd_list) {
return;
}
for (cmd_iter = cmd_list; cmd_iter; cmd_iter = cmd_iter->next) {
lrmd_cmd_t *cmd = cmd_iter->data;
if (cmd->interval_ms == 0) {
continue;
}
if (client_id && !pcmk__str_eq(cmd->client_id, client_id, pcmk__str_casei)) {
continue;
}
cancel_op(rsc->rsc_id, cmd->action, cmd->interval_ms);
}
/* frees only the copied list data, not the cmds */
g_list_free(cmd_list);
}
static int
process_lrmd_rsc_cancel(pcmk__client_t *client, uint32_t id, xmlNode *request)
{
xmlNode *rsc_xml = get_xpath_object("//" F_LRMD_RSC, request, LOG_ERR);
const char *rsc_id = crm_element_value(rsc_xml, F_LRMD_RSC_ID);
const char *action = crm_element_value(rsc_xml, F_LRMD_RSC_ACTION);
guint interval_ms = 0;
crm_element_value_ms(rsc_xml, F_LRMD_RSC_INTERVAL, &interval_ms);
if (!rsc_id || !action) {
return -EINVAL;
}
return cancel_op(rsc_id, action, interval_ms);
}
static void
add_recurring_op_xml(xmlNode *reply, lrmd_rsc_t *rsc)
{
xmlNode *rsc_xml = create_xml_node(reply, F_LRMD_RSC);
crm_xml_add(rsc_xml, F_LRMD_RSC_ID, rsc->rsc_id);
for (GList *item = rsc->recurring_ops; item != NULL; item = item->next) {
lrmd_cmd_t *cmd = item->data;
xmlNode *op_xml = create_xml_node(rsc_xml, T_LRMD_RSC_OP);
crm_xml_add(op_xml, F_LRMD_RSC_ACTION,
(cmd->real_action? cmd->real_action : cmd->action));
crm_xml_add_ms(op_xml, F_LRMD_RSC_INTERVAL, cmd->interval_ms);
crm_xml_add_int(op_xml, F_LRMD_TIMEOUT, cmd->timeout_orig);
}
}
static xmlNode *
process_lrmd_get_recurring(xmlNode *request, int call_id)
{
int rc = pcmk_ok;
const char *rsc_id = NULL;
lrmd_rsc_t *rsc = NULL;
xmlNode *reply = NULL;
xmlNode *rsc_xml = NULL;
// Resource ID is optional
rsc_xml = first_named_child(request, F_LRMD_CALLDATA);
if (rsc_xml) {
rsc_xml = first_named_child(rsc_xml, F_LRMD_RSC);
}
if (rsc_xml) {
rsc_id = crm_element_value(rsc_xml, F_LRMD_RSC_ID);
}
// If resource ID is specified, resource must exist
if (rsc_id != NULL) {
rsc = g_hash_table_lookup(rsc_list, rsc_id);
if (rsc == NULL) {
crm_info("Resource '%s' not found (%d active resources)",
rsc_id, g_hash_table_size(rsc_list));
rc = -ENODEV;
}
}
reply = create_lrmd_reply(__func__, rc, call_id);
// If resource ID is not specified, check all resources
if (rsc_id == NULL) {
GHashTableIter iter;
char *key = NULL;
g_hash_table_iter_init(&iter, rsc_list);
while (g_hash_table_iter_next(&iter, (gpointer *) &key,
(gpointer *) &rsc)) {
add_recurring_op_xml(reply, rsc);
}
} else if (rsc) {
add_recurring_op_xml(reply, rsc);
}
return reply;
}
void
process_lrmd_message(pcmk__client_t *client, uint32_t id, xmlNode *request)
{
int rc = pcmk_ok;
int call_id = 0;
const char *op = crm_element_value(request, F_LRMD_OPERATION);
int do_reply = 0;
int do_notify = 0;
xmlNode *reply = NULL;
/* Certain IPC commands may be done only by privileged users (i.e. root or
* hacluster), because they would otherwise provide a means of bypassing
* ACLs.
*/
bool allowed = pcmk_is_set(client->flags, pcmk__client_privileged);
crm_trace("Processing %s operation from %s", op, client->id);
crm_element_value_int(request, F_LRMD_CALLID, &call_id);
if (pcmk__str_eq(op, CRM_OP_IPC_FWD, pcmk__str_none)) {
#ifdef PCMK__COMPILE_REMOTE
if (allowed) {
ipc_proxy_forward_client(client, request);
} else {
rc = -EACCES;
}
#else
rc = -EPROTONOSUPPORT;
#endif
do_reply = 1;
} else if (pcmk__str_eq(op, CRM_OP_REGISTER, pcmk__str_none)) {
rc = process_lrmd_signon(client, request, call_id, &reply);
do_reply = 1;
} else if (pcmk__str_eq(op, LRMD_OP_RSC_REG, pcmk__str_none)) {
if (allowed) {
rc = process_lrmd_rsc_register(client, id, request);
do_notify = 1;
} else {
rc = -EACCES;
}
do_reply = 1;
} else if (pcmk__str_eq(op, LRMD_OP_RSC_INFO, pcmk__str_none)) {
if (allowed) {
reply = process_lrmd_get_rsc_info(request, call_id);
} else {
rc = -EACCES;
}
do_reply = 1;
} else if (pcmk__str_eq(op, LRMD_OP_RSC_UNREG, pcmk__str_none)) {
if (allowed) {
rc = process_lrmd_rsc_unregister(client, id, request);
/* don't notify anyone about failed un-registers */
if (rc == pcmk_ok || rc == -EINPROGRESS) {
do_notify = 1;
}
} else {
rc = -EACCES;
}
do_reply = 1;
} else if (pcmk__str_eq(op, LRMD_OP_RSC_EXEC, pcmk__str_none)) {
if (allowed) {
rc = process_lrmd_rsc_exec(client, id, request);
} else {
rc = -EACCES;
}
do_reply = 1;
} else if (pcmk__str_eq(op, LRMD_OP_RSC_CANCEL, pcmk__str_none)) {
if (allowed) {
rc = process_lrmd_rsc_cancel(client, id, request);
} else {
rc = -EACCES;
}
do_reply = 1;
} else if (pcmk__str_eq(op, LRMD_OP_POKE, pcmk__str_none)) {
do_notify = 1;
do_reply = 1;
} else if (pcmk__str_eq(op, LRMD_OP_CHECK, pcmk__str_none)) {
if (allowed) {
xmlNode *data = get_message_xml(request, F_LRMD_CALLDATA);
CRM_LOG_ASSERT(data != NULL);
pcmk__valid_sbd_timeout(crm_element_value(data, F_LRMD_WATCHDOG));
} else {
rc = -EACCES;
}
} else if (pcmk__str_eq(op, LRMD_OP_ALERT_EXEC, pcmk__str_none)) {
if (allowed) {
rc = process_lrmd_alert_exec(client, id, request);
} else {
rc = -EACCES;
}
do_reply = 1;
} else if (pcmk__str_eq(op, LRMD_OP_GET_RECURRING, pcmk__str_none)) {
if (allowed) {
reply = process_lrmd_get_recurring(request, call_id);
} else {
rc = -EACCES;
}
do_reply = 1;
} else {
rc = -EOPNOTSUPP;
do_reply = 1;
crm_err("Unknown IPC request '%s' from client %s",
op, pcmk__client_name(client));
}
if (rc == -EACCES) {
crm_warn("Rejecting IPC request '%s' from unprivileged client %s",
op, pcmk__client_name(client));
}
crm_debug("Processed %s operation from %s: rc=%d, reply=%d, notify=%d",
op, client->id, rc, do_reply, do_notify);
if (do_reply) {
int send_rc = pcmk_rc_ok;
if (reply == NULL) {
reply = create_lrmd_reply(__func__, rc, call_id);
}
send_rc = lrmd_server_send_reply(client, id, reply);
free_xml(reply);
if (send_rc != pcmk_rc_ok) {
crm_warn("Reply to client %s failed: %s " CRM_XS " rc=%d",
pcmk__client_name(client), pcmk_rc_str(send_rc), send_rc);
}
}
if (do_notify) {
send_generic_notify(rc, request);
}
}
diff --git a/lib/pacemaker/pcmk_sched_transition.c b/lib/pacemaker/pcmk_sched_transition.c
index 5b1882e3dd..1862c9cd3c 100644
--- a/lib/pacemaker/pcmk_sched_transition.c
+++ b/lib/pacemaker/pcmk_sched_transition.c
@@ -1,850 +1,850 @@
/*
* Copyright 2009-2021 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 <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <sys/types.h>
#include <dirent.h>
#include <crm/crm.h>
#include <crm/lrmd.h> // lrmd_event_data_t, lrmd_free_event()
#include <crm/cib.h>
#include <crm/common/util.h>
#include <crm/common/iso8601.h>
#include <crm/common/xml_internal.h>
#include <crm/lrmd_internal.h>
#include <crm/pengine/status.h>
#include <pacemaker-internal.h>
static pcmk__output_t *out = NULL;
static cib_t *fake_cib = NULL;
static GList *fake_resource_list = NULL;
static GList *fake_op_fail_list = NULL;
gboolean bringing_nodes_online = FALSE;
#define STATUS_PATH_MAX 512
#define NEW_NODE_TEMPLATE "//"XML_CIB_TAG_NODE"[@uname='%s']"
#define NODE_TEMPLATE "//"XML_CIB_TAG_STATE"[@uname='%s']"
#define RSC_TEMPLATE "//"XML_CIB_TAG_STATE"[@uname='%s']//"XML_LRM_TAG_RESOURCE"[@id='%s']"
static void
inject_transient_attr(xmlNode * cib_node, const char *name, const char *value)
{
xmlNode *attrs = NULL;
xmlNode *instance_attrs = NULL;
const char *node_uuid = ID(cib_node);
out->message(out, "inject-attr", name, value, cib_node);
attrs = first_named_child(cib_node, XML_TAG_TRANSIENT_NODEATTRS);
if (attrs == NULL) {
attrs = create_xml_node(cib_node, XML_TAG_TRANSIENT_NODEATTRS);
crm_xml_add(attrs, XML_ATTR_ID, node_uuid);
}
instance_attrs = first_named_child(attrs, XML_TAG_ATTR_SETS);
if (instance_attrs == NULL) {
instance_attrs = create_xml_node(attrs, XML_TAG_ATTR_SETS);
crm_xml_add(instance_attrs, XML_ATTR_ID, node_uuid);
}
crm_create_nvpair_xml(instance_attrs, NULL, name, value);
}
static void
update_failcounts(xmlNode * cib_node, const char *resource, const char *task,
guint interval_ms, int rc)
{
if (rc == 0) {
return;
} else if ((rc == 7) && (interval_ms == 0)) {
return;
} else {
char *name = NULL;
char *now = pcmk__ttoa(time(NULL));
name = pcmk__failcount_name(resource, task, interval_ms);
inject_transient_attr(cib_node, name, "value++");
free(name);
name = pcmk__lastfailure_name(resource, task, interval_ms);
inject_transient_attr(cib_node, name, now);
free(name);
free(now);
}
}
static void
create_node_entry(cib_t * cib_conn, const char *node)
{
int rc = pcmk_ok;
char *xpath = crm_strdup_printf(NEW_NODE_TEMPLATE, node);
rc = cib_conn->cmds->query(cib_conn, xpath, NULL, cib_xpath | cib_sync_call | cib_scope_local);
if (rc == -ENXIO) {
xmlNode *cib_object = create_xml_node(NULL, XML_CIB_TAG_NODE);
crm_xml_add(cib_object, XML_ATTR_ID, node); // Use node name as ID
crm_xml_add(cib_object, XML_ATTR_UNAME, node);
cib_conn->cmds->create(cib_conn, XML_CIB_TAG_NODES, cib_object,
cib_sync_call | cib_scope_local);
/* Not bothering with subsequent query to see if it exists,
we'll bomb out later in the call to query_node_uuid()... */
free_xml(cib_object);
}
free(xpath);
}
static lrmd_event_data_t *
create_op(xmlNode *cib_resource, const char *task, guint interval_ms,
int outcome)
{
lrmd_event_data_t *op = NULL;
xmlNode *xop = NULL;
op = lrmd_new_event(ID(cib_resource), task, interval_ms);
- lrmd__set_result(op, outcome, PCMK_EXEC_DONE, NULL);
+ lrmd__set_result(op, outcome, PCMK_EXEC_DONE, "Simulated action result");
op->params = NULL; /* TODO: Fill me in */
op->t_run = (unsigned int) time(NULL);
op->t_rcchange = op->t_run;
op->call_id = 0;
for (xop = pcmk__xe_first_child(cib_resource); xop != NULL;
xop = pcmk__xe_next(xop)) {
int tmp = 0;
crm_element_value_int(xop, XML_LRM_ATTR_CALLID, &tmp);
if (tmp > op->call_id) {
op->call_id = tmp;
}
}
op->call_id++;
return op;
}
static xmlNode *
inject_op(xmlNode * cib_resource, lrmd_event_data_t * op, int target_rc)
{
return pcmk__create_history_xml(cib_resource, op, CRM_FEATURE_SET,
target_rc, NULL, crm_system_name,
LOG_TRACE);
}
static xmlNode *
inject_node_state(cib_t * cib_conn, const char *node, const char *uuid)
{
int rc = pcmk_ok;
xmlNode *cib_object = NULL;
char *xpath = crm_strdup_printf(NODE_TEMPLATE, node);
if (bringing_nodes_online) {
create_node_entry(cib_conn, node);
}
rc = cib_conn->cmds->query(cib_conn, xpath, &cib_object,
cib_xpath | cib_sync_call | cib_scope_local);
if (cib_object && ID(cib_object) == NULL) {
crm_err("Detected multiple node_state entries for xpath=%s, bailing", xpath);
crm_log_xml_warn(cib_object, "Duplicates");
free(xpath);
crm_exit(CRM_EX_SOFTWARE);
return NULL; // not reached, but makes static analysis happy
}
if (rc == -ENXIO) {
char *found_uuid = NULL;
if (uuid == NULL) {
query_node_uuid(cib_conn, node, &found_uuid, NULL);
} else {
found_uuid = strdup(uuid);
}
cib_object = create_xml_node(NULL, XML_CIB_TAG_STATE);
crm_xml_add(cib_object, XML_ATTR_UUID, found_uuid);
crm_xml_add(cib_object, XML_ATTR_UNAME, node);
cib_conn->cmds->create(cib_conn, XML_CIB_TAG_STATUS, cib_object,
cib_sync_call | cib_scope_local);
free_xml(cib_object);
free(found_uuid);
rc = cib_conn->cmds->query(cib_conn, xpath, &cib_object,
cib_xpath | cib_sync_call | cib_scope_local);
crm_trace("injecting node state for %s. rc is %d", node, rc);
}
free(xpath);
CRM_ASSERT(rc == pcmk_ok);
return cib_object;
}
static xmlNode *
modify_node(cib_t * cib_conn, char *node, gboolean up)
{
xmlNode *cib_node = inject_node_state(cib_conn, node, NULL);
if (up) {
crm_xml_add(cib_node, XML_NODE_IN_CLUSTER, XML_BOOLEAN_YES);
crm_xml_add(cib_node, XML_NODE_IS_PEER, ONLINESTATUS);
crm_xml_add(cib_node, XML_NODE_JOIN_STATE, CRMD_JOINSTATE_MEMBER);
crm_xml_add(cib_node, XML_NODE_EXPECTED, CRMD_JOINSTATE_MEMBER);
} else {
crm_xml_add(cib_node, XML_NODE_IN_CLUSTER, XML_BOOLEAN_NO);
crm_xml_add(cib_node, XML_NODE_IS_PEER, OFFLINESTATUS);
crm_xml_add(cib_node, XML_NODE_JOIN_STATE, CRMD_JOINSTATE_DOWN);
crm_xml_add(cib_node, XML_NODE_EXPECTED, CRMD_JOINSTATE_DOWN);
}
crm_xml_add(cib_node, XML_ATTR_ORIGIN, crm_system_name);
return cib_node;
}
static xmlNode *
find_resource_xml(xmlNode * cib_node, const char *resource)
{
xmlNode *match = NULL;
const char *node = crm_element_value(cib_node, XML_ATTR_UNAME);
char *xpath = crm_strdup_printf(RSC_TEMPLATE, node, resource);
match = get_xpath_object(xpath, cib_node, LOG_TRACE);
free(xpath);
return match;
}
static xmlNode *
inject_resource(xmlNode * cib_node, const char *resource, const char *lrm_name,
const char *rclass, const char *rtype, const char *rprovider)
{
xmlNode *lrm = NULL;
xmlNode *container = NULL;
xmlNode *cib_resource = NULL;
char *xpath = NULL;
cib_resource = find_resource_xml(cib_node, resource);
if (cib_resource != NULL) {
/* If an existing LRM history entry uses the resource name,
* continue using it, even if lrm_name is different.
*/
return cib_resource;
}
// Check for history entry under preferred name
if (strcmp(resource, lrm_name)) {
cib_resource = find_resource_xml(cib_node, lrm_name);
if (cib_resource != NULL) {
return cib_resource;
}
}
/* One day, add query for class, provider, type */
if (rclass == NULL || rtype == NULL) {
out->err(out, "Resource %s not found in the status section of %s."
" Please supply the class and type to continue", resource, ID(cib_node));
return NULL;
} else if (!pcmk__strcase_any_of(rclass, PCMK_RESOURCE_CLASS_OCF, PCMK_RESOURCE_CLASS_STONITH,
PCMK_RESOURCE_CLASS_SERVICE, PCMK_RESOURCE_CLASS_UPSTART,
PCMK_RESOURCE_CLASS_SYSTEMD, PCMK_RESOURCE_CLASS_LSB, NULL)) {
out->err(out, "Invalid class for %s: %s", resource, rclass);
return NULL;
} else if (pcmk_is_set(pcmk_get_ra_caps(rclass), pcmk_ra_cap_provider)
&& (rprovider == NULL)) {
out->err(out, "Please specify the provider for resource %s", resource);
return NULL;
}
xpath = (char *)xmlGetNodePath(cib_node);
crm_info("Injecting new resource %s into %s '%s'", lrm_name, xpath, ID(cib_node));
free(xpath);
lrm = first_named_child(cib_node, XML_CIB_TAG_LRM);
if (lrm == NULL) {
const char *node_uuid = ID(cib_node);
lrm = create_xml_node(cib_node, XML_CIB_TAG_LRM);
crm_xml_add(lrm, XML_ATTR_ID, node_uuid);
}
container = first_named_child(lrm, XML_LRM_TAG_RESOURCES);
if (container == NULL) {
container = create_xml_node(lrm, XML_LRM_TAG_RESOURCES);
}
cib_resource = create_xml_node(container, XML_LRM_TAG_RESOURCE);
// If we're creating a new entry, use the preferred name
crm_xml_add(cib_resource, XML_ATTR_ID, lrm_name);
crm_xml_add(cib_resource, XML_AGENT_ATTR_CLASS, rclass);
crm_xml_add(cib_resource, XML_AGENT_ATTR_PROVIDER, rprovider);
crm_xml_add(cib_resource, XML_ATTR_TYPE, rtype);
return cib_resource;
}
#define XPATH_MAX 1024
static int
find_ticket_state(cib_t * the_cib, const char *ticket_id, xmlNode ** ticket_state_xml)
{
int offset = 0;
int rc = pcmk_ok;
xmlNode *xml_search = NULL;
char *xpath_string = NULL;
CRM_ASSERT(ticket_state_xml != NULL);
*ticket_state_xml = NULL;
xpath_string = calloc(1, XPATH_MAX);
offset += snprintf(xpath_string + offset, XPATH_MAX - offset, "%s", "/cib/status/tickets");
if (ticket_id) {
offset += snprintf(xpath_string + offset, XPATH_MAX - offset, "/%s[@id=\"%s\"]",
XML_CIB_TAG_TICKET_STATE, ticket_id);
}
CRM_LOG_ASSERT(offset > 0);
rc = the_cib->cmds->query(the_cib, xpath_string, &xml_search,
cib_sync_call | cib_scope_local | cib_xpath);
if (rc != pcmk_ok) {
goto bail;
}
crm_log_xml_debug(xml_search, "Match");
if (xml_has_children(xml_search)) {
if (ticket_id) {
out->err(out, "Multiple ticket_states match ticket_id=%s", ticket_id);
}
*ticket_state_xml = xml_search;
} else {
*ticket_state_xml = xml_search;
}
bail:
free(xpath_string);
return rc;
}
static int
set_ticket_state_attr(const char *ticket_id, const char *attr_name,
const char *attr_value, cib_t * cib, int cib_options)
{
int rc = pcmk_ok;
xmlNode *xml_top = NULL;
xmlNode *ticket_state_xml = NULL;
rc = find_ticket_state(cib, ticket_id, &ticket_state_xml);
if (rc == pcmk_ok) {
crm_debug("Found a match state for ticket: id=%s", ticket_id);
xml_top = ticket_state_xml;
} else if (rc != -ENXIO) {
return rc;
} else {
xmlNode *xml_obj = NULL;
xml_top = create_xml_node(NULL, XML_CIB_TAG_STATUS);
xml_obj = create_xml_node(xml_top, XML_CIB_TAG_TICKETS);
ticket_state_xml = create_xml_node(xml_obj, XML_CIB_TAG_TICKET_STATE);
crm_xml_add(ticket_state_xml, XML_ATTR_ID, ticket_id);
}
crm_xml_add(ticket_state_xml, attr_name, attr_value);
crm_log_xml_debug(xml_top, "Update");
rc = cib->cmds->modify(cib, XML_CIB_TAG_STATUS, xml_top, cib_options);
free_xml(xml_top);
return rc;
}
void
modify_configuration(pe_working_set_t * data_set, cib_t *cib, pcmk_injections_t *injections)
{
int rc = pcmk_ok;
GList *gIter = NULL;
xmlNode *cib_op = NULL;
xmlNode *cib_node = NULL;
xmlNode *cib_resource = NULL;
lrmd_event_data_t *op = NULL;
out = data_set->priv;
out->message(out, "inject-modify-config", injections->quorum, injections->watchdog);
if (injections->quorum) {
xmlNode *top = create_xml_node(NULL, XML_TAG_CIB);
/* crm_xml_add(top, XML_ATTR_DC_UUID, dc_uuid); */
crm_xml_add(top, XML_ATTR_HAVE_QUORUM, injections->quorum);
rc = cib->cmds->modify(cib, NULL, top, cib_sync_call | cib_scope_local);
CRM_ASSERT(rc == pcmk_ok);
}
if (injections->watchdog) {
rc = update_attr_delegate(cib, cib_sync_call | cib_scope_local,
XML_CIB_TAG_CRMCONFIG, NULL, NULL, NULL, NULL,
XML_ATTR_HAVE_WATCHDOG, injections->watchdog, FALSE, NULL, NULL);
CRM_ASSERT(rc == pcmk_ok);
}
for (gIter = injections->node_up; gIter != NULL; gIter = gIter->next) {
char *node = (char *)gIter->data;
out->message(out, "inject-modify-node", "Online", node);
cib_node = modify_node(cib, node, TRUE);
CRM_ASSERT(cib_node != NULL);
rc = cib->cmds->modify(cib, XML_CIB_TAG_STATUS, cib_node,
cib_sync_call | cib_scope_local);
CRM_ASSERT(rc == pcmk_ok);
free_xml(cib_node);
}
for (gIter = injections->node_down; gIter != NULL; gIter = gIter->next) {
char xpath[STATUS_PATH_MAX];
char *node = (char *)gIter->data;
out->message(out, "inject-modify-node", "Offline", node);
cib_node = modify_node(cib, node, FALSE);
CRM_ASSERT(cib_node != NULL);
rc = cib->cmds->modify(cib, XML_CIB_TAG_STATUS, cib_node,
cib_sync_call | cib_scope_local);
CRM_ASSERT(rc == pcmk_ok);
free_xml(cib_node);
snprintf(xpath, STATUS_PATH_MAX, "//node_state[@uname='%s']/%s", node, XML_CIB_TAG_LRM);
cib->cmds->remove(cib, xpath, NULL,
cib_xpath | cib_sync_call | cib_scope_local);
snprintf(xpath, STATUS_PATH_MAX, "//node_state[@uname='%s']/%s", node,
XML_TAG_TRANSIENT_NODEATTRS);
cib->cmds->remove(cib, xpath, NULL,
cib_xpath | cib_sync_call | cib_scope_local);
}
for (gIter = injections->node_fail; gIter != NULL; gIter = gIter->next) {
char *node = (char *)gIter->data;
out->message(out, "inject-modify-node", "Failing", node);
cib_node = modify_node(cib, node, TRUE);
crm_xml_add(cib_node, XML_NODE_IN_CLUSTER, XML_BOOLEAN_NO);
CRM_ASSERT(cib_node != NULL);
rc = cib->cmds->modify(cib, XML_CIB_TAG_STATUS, cib_node,
cib_sync_call | cib_scope_local);
CRM_ASSERT(rc == pcmk_ok);
free_xml(cib_node);
}
for (gIter = injections->ticket_grant; gIter != NULL; gIter = gIter->next) {
char *ticket_id = (char *)gIter->data;
out->message(out, "inject-modify-ticket", "Granting", ticket_id);
rc = set_ticket_state_attr(ticket_id, "granted", "true",
cib, cib_sync_call | cib_scope_local);
CRM_ASSERT(rc == pcmk_ok);
}
for (gIter = injections->ticket_revoke; gIter != NULL; gIter = gIter->next) {
char *ticket_id = (char *)gIter->data;
out->message(out, "inject-modify-ticket", "Revoking", ticket_id);
rc = set_ticket_state_attr(ticket_id, "granted", "false",
cib, cib_sync_call | cib_scope_local);
CRM_ASSERT(rc == pcmk_ok);
}
for (gIter = injections->ticket_standby; gIter != NULL; gIter = gIter->next) {
char *ticket_id = (char *)gIter->data;
out->message(out, "inject-modify-ticket", "Standby", ticket_id);
rc = set_ticket_state_attr(ticket_id, "standby", "true",
cib, cib_sync_call | cib_scope_local);
CRM_ASSERT(rc == pcmk_ok);
}
for (gIter = injections->ticket_activate; gIter != NULL; gIter = gIter->next) {
char *ticket_id = (char *)gIter->data;
out->message(out, "inject-modify-ticket", "Activating", ticket_id);
rc = set_ticket_state_attr(ticket_id, "standby", "false",
cib, cib_sync_call | cib_scope_local);
CRM_ASSERT(rc == pcmk_ok);
}
for (gIter = injections->op_inject; gIter != NULL; gIter = gIter->next) {
char *spec = (char *)gIter->data;
int rc = 0;
int outcome = PCMK_OCF_OK;
guint interval_ms = 0;
char *key = NULL;
char *node = NULL;
char *task = NULL;
char *resource = NULL;
const char *rtype = NULL;
const char *rclass = NULL;
const char *rprovider = NULL;
pe_resource_t *rsc = NULL;
out->message(out, "inject-spec", spec);
key = calloc(1, strlen(spec) + 1);
node = calloc(1, strlen(spec) + 1);
rc = sscanf(spec, "%[^@]@%[^=]=%d", key, node, &outcome);
if (rc != 3) {
out->err(out, "Invalid operation spec: %s. Only found %d fields", spec, rc);
free(key);
free(node);
continue;
}
parse_op_key(key, &resource, &task, &interval_ms);
rsc = pe_find_resource(data_set->resources, resource);
if (rsc == NULL) {
out->err(out, "Invalid resource name: %s", resource);
} else {
rclass = crm_element_value(rsc->xml, XML_AGENT_ATTR_CLASS);
rtype = crm_element_value(rsc->xml, XML_ATTR_TYPE);
rprovider = crm_element_value(rsc->xml, XML_AGENT_ATTR_PROVIDER);
cib_node = inject_node_state(cib, node, NULL);
CRM_ASSERT(cib_node != NULL);
update_failcounts(cib_node, resource, task, interval_ms, outcome);
cib_resource = inject_resource(cib_node, resource, resource,
rclass, rtype, rprovider);
CRM_ASSERT(cib_resource != NULL);
op = create_op(cib_resource, task, interval_ms, outcome);
CRM_ASSERT(op != NULL);
cib_op = inject_op(cib_resource, op, 0);
CRM_ASSERT(cib_op != NULL);
lrmd_free_event(op);
rc = cib->cmds->modify(cib, XML_CIB_TAG_STATUS, cib_node,
cib_sync_call | cib_scope_local);
CRM_ASSERT(rc == pcmk_ok);
}
free(task);
free(node);
free(key);
}
if (!out->is_quiet(out)) {
out->end_list(out);
}
}
static gboolean
exec_pseudo_action(crm_graph_t * graph, crm_action_t * action)
{
const char *node = crm_element_value(action->xml, XML_LRM_ATTR_TARGET);
const char *task = crm_element_value(action->xml, XML_LRM_ATTR_TASK_KEY);
action->confirmed = TRUE;
out->message(out, "inject-pseudo-action", node, task);
pcmk__update_graph(graph, action);
return TRUE;
}
static gboolean
exec_rsc_action(crm_graph_t * graph, crm_action_t * action)
{
int rc = 0;
GList *gIter = NULL;
lrmd_event_data_t *op = NULL;
int target_outcome = PCMK_OCF_OK;
const char *rtype = NULL;
const char *rclass = NULL;
const char *resource = NULL;
const char *rprovider = NULL;
const char *lrm_name = NULL;
const char *operation = crm_element_value(action->xml, "operation");
const char *target_rc_s = crm_meta_value(action->params, XML_ATTR_TE_TARGET_RC);
xmlNode *cib_node = NULL;
xmlNode *cib_resource = NULL;
xmlNode *action_rsc = first_named_child(action->xml, XML_CIB_TAG_RESOURCE);
char *node = crm_element_value_copy(action->xml, XML_LRM_ATTR_TARGET);
char *uuid = crm_element_value_copy(action->xml, XML_LRM_ATTR_TARGET_UUID);
const char *router_node = crm_element_value(action->xml, XML_LRM_ATTR_ROUTER_NODE);
if (pcmk__strcase_any_of(operation, CRM_OP_PROBED, CRM_OP_REPROBE, NULL)) {
crm_info("Skipping %s op for %s", operation, node);
goto done;
}
if (action_rsc == NULL) {
crm_log_xml_err(action->xml, "Bad");
free(node); free(uuid);
return FALSE;
}
/* Look for the preferred name
* If not found, try the expected 'local' name
* If not found use the preferred name anyway
*/
resource = crm_element_value(action_rsc, XML_ATTR_ID);
CRM_ASSERT(resource != NULL); // makes static analysis happy
lrm_name = resource; // Preferred name when writing history
if (pe_find_resource(fake_resource_list, resource) == NULL) {
const char *longname = crm_element_value(action_rsc, XML_ATTR_ID_LONG);
if (longname && pe_find_resource(fake_resource_list, longname)) {
resource = longname;
}
}
if (pcmk__strcase_any_of(operation, "delete", RSC_METADATA, NULL)) {
out->message(out, "inject-rsc-action", resource, operation, node, (guint) 0);
goto done;
}
rclass = crm_element_value(action_rsc, XML_AGENT_ATTR_CLASS);
rtype = crm_element_value(action_rsc, XML_ATTR_TYPE);
rprovider = crm_element_value(action_rsc, XML_AGENT_ATTR_PROVIDER);
pcmk__scan_min_int(target_rc_s, &target_outcome, 0);
CRM_ASSERT(fake_cib->cmds->query(fake_cib, NULL, NULL, cib_sync_call | cib_scope_local) ==
pcmk_ok);
cib_node = inject_node_state(fake_cib, node, (router_node? node : uuid));
CRM_ASSERT(cib_node != NULL);
cib_resource = inject_resource(cib_node, resource, lrm_name,
rclass, rtype, rprovider);
if (cib_resource == NULL) {
crm_err("invalid resource in transition");
free(node); free(uuid);
free_xml(cib_node);
return FALSE;
}
op = pcmk__event_from_graph_action(cib_resource, action, PCMK_EXEC_DONE,
target_outcome);
out->message(out, "inject-rsc-action", resource, op->op_type, node, op->interval_ms);
for (gIter = fake_op_fail_list; gIter != NULL; gIter = gIter->next) {
char *spec = (char *)gIter->data;
char *key = NULL;
const char *match_name = NULL;
// Allow user to specify anonymous clone with or without instance number
key = crm_strdup_printf(PCMK__OP_FMT "@%s=", resource, op->op_type,
op->interval_ms, node);
if (strncasecmp(key, spec, strlen(key)) == 0) {
match_name = resource;
}
free(key);
if ((match_name == NULL) && strcmp(resource, lrm_name)) {
key = crm_strdup_printf(PCMK__OP_FMT "@%s=", lrm_name, op->op_type,
op->interval_ms, node);
if (strncasecmp(key, spec, strlen(key)) == 0) {
match_name = lrm_name;
}
free(key);
}
if (match_name != NULL) {
rc = sscanf(spec, "%*[^=]=%d", (int *) &op->rc);
// ${match_name}_${task}_${interval_in_ms}@${node}=${rc}
if (rc != 1) {
out->err(out,
"Invalid failed operation spec: %s. Result code must be integer",
spec);
continue;
}
action->failed = TRUE;
graph->abort_priority = INFINITY;
out->info(out, "Pretending action %d failed with rc=%d", action->id, op->rc);
update_failcounts(cib_node, match_name, op->op_type,
op->interval_ms, op->rc);
break;
}
}
inject_op(cib_resource, op, target_outcome);
lrmd_free_event(op);
rc = fake_cib->cmds->modify(fake_cib, XML_CIB_TAG_STATUS, cib_node,
cib_sync_call | cib_scope_local);
CRM_ASSERT(rc == pcmk_ok);
done:
free(node); free(uuid);
free_xml(cib_node);
action->confirmed = TRUE;
pcmk__update_graph(graph, action);
return TRUE;
}
static gboolean
exec_crmd_action(crm_graph_t * graph, crm_action_t * action)
{
const char *node = crm_element_value(action->xml, XML_LRM_ATTR_TARGET);
const char *task = crm_element_value(action->xml, XML_LRM_ATTR_TASK);
xmlNode *rsc = first_named_child(action->xml, XML_CIB_TAG_RESOURCE);
action->confirmed = TRUE;
out->message(out, "inject-cluster-action", node, task, rsc);
pcmk__update_graph(graph, action);
return TRUE;
}
static gboolean
exec_stonith_action(crm_graph_t * graph, crm_action_t * action)
{
const char *op = crm_meta_value(action->params, "stonith_action");
char *target = crm_element_value_copy(action->xml, XML_LRM_ATTR_TARGET);
out->message(out, "inject-fencing-action", target, op);
if(!pcmk__str_eq(op, "on", pcmk__str_casei)) {
int rc = 0;
char xpath[STATUS_PATH_MAX];
xmlNode *cib_node = modify_node(fake_cib, target, FALSE);
crm_xml_add(cib_node, XML_ATTR_ORIGIN, __func__);
CRM_ASSERT(cib_node != NULL);
rc = fake_cib->cmds->replace(fake_cib, XML_CIB_TAG_STATUS, cib_node,
cib_sync_call | cib_scope_local);
CRM_ASSERT(rc == pcmk_ok);
snprintf(xpath, STATUS_PATH_MAX, "//node_state[@uname='%s']/%s", target, XML_CIB_TAG_LRM);
fake_cib->cmds->remove(fake_cib, xpath, NULL,
cib_xpath | cib_sync_call | cib_scope_local);
snprintf(xpath, STATUS_PATH_MAX, "//node_state[@uname='%s']/%s", target,
XML_TAG_TRANSIENT_NODEATTRS);
fake_cib->cmds->remove(fake_cib, xpath, NULL,
cib_xpath | cib_sync_call | cib_scope_local);
free_xml(cib_node);
}
action->confirmed = TRUE;
pcmk__update_graph(graph, action);
free(target);
return TRUE;
}
enum transition_status
run_simulation(pe_working_set_t * data_set, cib_t *cib, GList *op_fail_list)
{
crm_graph_t *transition = NULL;
enum transition_status graph_rc;
crm_graph_functions_t exec_fns = {
exec_pseudo_action,
exec_rsc_action,
exec_crmd_action,
exec_stonith_action,
};
out = data_set->priv;
fake_cib = cib;
fake_op_fail_list = op_fail_list;
if (!out->is_quiet(out)) {
out->begin_list(out, NULL, NULL, "Executing Cluster Transition");
}
pcmk__set_graph_functions(&exec_fns);
transition = pcmk__unpack_graph(data_set->graph, crm_system_name);
pcmk__log_graph(LOG_DEBUG, transition);
fake_resource_list = data_set->resources;
do {
graph_rc = pcmk__execute_graph(transition);
} while (graph_rc == transition_active);
fake_resource_list = NULL;
if (graph_rc != transition_complete) {
out->err(out, "Transition failed: %s",
pcmk__graph_status2text(graph_rc));
pcmk__log_graph(LOG_ERR, transition);
}
pcmk__free_graph(transition);
if (graph_rc != transition_complete) {
out->err(out, "An invalid transition was produced");
}
if (!out->is_quiet(out)) {
xmlNode *cib_object = NULL;
int rc = fake_cib->cmds->query(fake_cib, NULL, &cib_object, cib_sync_call | cib_scope_local);
CRM_ASSERT(rc == pcmk_ok);
pe_reset_working_set(data_set);
data_set->input = cib_object;
out->end_list(out);
}
return graph_rc;
}