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diff --git a/lib/pacemaker/pcmk_injections.c b/lib/pacemaker/pcmk_injections.c
index 206731d64e..61c29aca74 100644
--- a/lib/pacemaker/pcmk_injections.c
+++ b/lib/pacemaker/pcmk_injections.c
@@ -1,799 +1,821 @@
/*
* Copyright 2009-2025 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 <libxml/tree.h> // xmlNode
#include <crm/crm.h>
#include <crm/cib.h>
#include <crm/cib/internal.h>
#include <crm/common/util.h>
#include <crm/common/iso8601.h>
#include <crm/common/xml_internal.h>
#include <crm/lrmd_events.h> // lrmd_event_data_t, etc.
#include <crm/lrmd_internal.h>
#include <crm/pengine/status.h>
#include <pacemaker-internal.h>
#include "libpacemaker_private.h"
// @TODO Replace this with a new scheduler flag
bool pcmk__simulate_node_config = false;
#define XPATH_NODE_CONFIG "//" PCMK_XE_NODE "[@" PCMK_XA_UNAME "='%s']"
#define XPATH_NODE_STATE "//" PCMK__XE_NODE_STATE "[@" PCMK_XA_UNAME "='%s']"
#define XPATH_NODE_STATE_BY_ID "//" PCMK__XE_NODE_STATE "[@" PCMK_XA_ID "='%s']"
#define XPATH_RSC_HISTORY XPATH_NODE_STATE \
"//" PCMK__XE_LRM_RESOURCE "[@" PCMK_XA_ID "='%s']"
/*!
* \internal
* \brief Inject a fictitious transient node attribute into scheduler input
*
* \param[in,out] out Output object for displaying error messages
* \param[in,out] cib_node \c PCMK__XE_NODE_STATE XML to inject attribute into
* \param[in] name Transient node attribute name to inject
* \param[in] value Transient node attribute value to inject
*/
static void
inject_transient_attr(pcmk__output_t *out, xmlNode *cib_node,
const char *name, const char *value)
{
xmlNode *attrs = NULL;
xmlNode *instance_attrs = NULL;
const char *node_uuid = pcmk__xe_id(cib_node);
out->message(out, "inject-attr", name, value, cib_node);
attrs = pcmk__xe_first_child(cib_node, PCMK__XE_TRANSIENT_ATTRIBUTES, NULL,
NULL);
if (attrs == NULL) {
attrs = pcmk__xe_create(cib_node, PCMK__XE_TRANSIENT_ATTRIBUTES);
crm_xml_add(attrs, PCMK_XA_ID, node_uuid);
}
instance_attrs = pcmk__xe_first_child(attrs, PCMK_XE_INSTANCE_ATTRIBUTES,
NULL, NULL);
if (instance_attrs == NULL) {
instance_attrs = pcmk__xe_create(attrs, PCMK_XE_INSTANCE_ATTRIBUTES);
crm_xml_add(instance_attrs, PCMK_XA_ID, node_uuid);
}
crm_create_nvpair_xml(instance_attrs, NULL, name, value);
}
/*!
* \internal
* \brief Inject a fictitious fail count into a scheduler input
*
* \param[in,out] out Output object for displaying error messages
* \param[in,out] cib_conn CIB connection
* \param[in,out] cib_node Node state XML to inject into
* \param[in] resource ID of resource for fail count to inject
* \param[in] task Action name for fail count to inject
* \param[in] interval_ms Action interval (in milliseconds) for fail count
* \param[in] exit_status Action result for fail count to inject (if
* \c PCMK_OCF_OK, or \c PCMK_OCF_NOT_RUNNING when
* \p interval_ms is 0, inject nothing)
* \param[in] infinity If true, set fail count to "INFINITY", otherwise
* increase it by 1
*/
void
pcmk__inject_failcount(pcmk__output_t *out, cib_t *cib_conn, xmlNode *cib_node,
const char *resource, const char *task,
guint interval_ms, int exit_status, bool infinity)
{
char *name = NULL;
char *value = NULL;
int failcount = 0;
xmlNode *output = NULL;
CRM_CHECK((out != NULL) && (cib_conn != NULL) && (cib_node != NULL)
&& (resource != NULL) && (task != NULL), return);
if ((exit_status == PCMK_OCF_OK)
|| ((exit_status == PCMK_OCF_NOT_RUNNING) && (interval_ms == 0))) {
return;
}
// Get current failcount and increment it
name = pcmk__failcount_name(resource, task, interval_ms);
if (cib__get_node_attrs(out, cib_conn, PCMK_XE_STATUS,
pcmk__xe_id(cib_node), NULL, NULL, NULL, name,
NULL, &output) == pcmk_rc_ok) {
if (crm_element_value_int(output, PCMK_XA_VALUE, &failcount) != 0) {
failcount = 0;
}
}
if (infinity) {
value = pcmk__str_copy(PCMK_VALUE_INFINITY);
} else {
value = pcmk__itoa(failcount + 1);
}
inject_transient_attr(out, cib_node, name, value);
free(name);
free(value);
pcmk__xml_free(output);
name = pcmk__lastfailure_name(resource, task, interval_ms);
value = pcmk__ttoa(time(NULL));
inject_transient_attr(out, cib_node, name, value);
free(name);
free(value);
}
/*!
* \internal
* \brief Create a CIB configuration entry for a fictitious node
*
* \param[in,out] cib_conn CIB object to use
* \param[in] node Node name to use
*/
static void
create_node_entry(cib_t *cib_conn, const char *node)
{
int rc = pcmk_ok;
char *xpath = crm_strdup_printf(XPATH_NODE_CONFIG, node);
rc = cib_conn->cmds->query(cib_conn, xpath, NULL, cib_xpath|cib_sync_call);
if (rc == -ENXIO) { // Only add if not already existing
xmlNode *cib_object = pcmk__xe_create(NULL, PCMK_XE_NODE);
crm_xml_add(cib_object, PCMK_XA_ID, node); // Use node name as ID
crm_xml_add(cib_object, PCMK_XA_UNAME, node);
cib_conn->cmds->create(cib_conn, PCMK_XE_NODES, cib_object,
cib_sync_call);
/* Not bothering with subsequent query to see if it exists,
we'll bomb out later in the call to query_node_uuid()... */
pcmk__xml_free(cib_object);
}
free(xpath);
}
/*!
* \internal
* \brief Synthesize a fake executor event for an action
*
* \param[in] cib_resource XML for any existing resource action history
* \param[in] task Name of action to synthesize
* \param[in] interval_ms Interval of action to synthesize
* \param[in] outcome Result of action to synthesize
*
* \return Newly allocated executor event
* \note It is the caller's responsibility to free the result with
* lrmd_free_event().
*/
static lrmd_event_data_t *
create_op(const xmlNode *cib_resource, const char *task, guint interval_ms,
int outcome)
{
lrmd_event_data_t *op = NULL;
xmlNode *xop = NULL;
op = lrmd_new_event(pcmk__xe_id(cib_resource), task, interval_ms);
lrmd__set_result(op, outcome, PCMK_EXEC_DONE, "Simulated action result");
op->params = NULL; // Not needed for simulation purposes
op->t_run = time(NULL);
op->t_rcchange = op->t_run;
// Use a call ID higher than any existing history entries
op->call_id = 0;
for (xop = pcmk__xe_first_child(cib_resource, NULL, NULL, NULL);
xop != NULL; xop = pcmk__xe_next(xop, NULL)) {
int tmp = 0;
crm_element_value_int(xop, PCMK__XA_CALL_ID, &tmp);
if (tmp > op->call_id) {
op->call_id = tmp;
}
}
op->call_id++;
return op;
}
/*!
* \internal
* \brief Inject a fictitious resource history entry into a scheduler input
*
* \param[in,out] cib_resource Resource history XML to inject entry into
* \param[in,out] op Action result to inject
* \param[in] node Name of node where the action occurred
* \param[in] target_rc Expected result for action to inject
*
* \return XML of injected resource history entry
*/
xmlNode *
pcmk__inject_action_result(xmlNode *cib_resource, lrmd_event_data_t *op,
const char *node, int target_rc)
{
return pcmk__create_history_xml(cib_resource, op, CRM_FEATURE_SET,
target_rc, node, crm_system_name);
}
/*!
* \internal
* \brief Inject a fictitious node into a scheduler input
*
* \param[in,out] cib_conn Scheduler input CIB to inject node into
* \param[in] node Name of node to inject
* \param[in] uuid UUID of node to inject
*
- * \return XML of \c PCMK__XE_NODE_STATE entry for new node
+ * \return XML of \c PCMK__XE_NODE_STATE entry for new node, or NULL if
+ * \c node is not valid
* \note If the global pcmk__simulate_node_config has been set to true, a
* node entry in the configuration section will be added, as well as a
* node state entry in the status section.
*/
xmlNode *
pcmk__inject_node(cib_t *cib_conn, const char *node, const char *uuid)
{
int rc = pcmk_ok;
xmlNode *cib_object = NULL;
char *xpath = crm_strdup_printf(XPATH_NODE_STATE, node);
bool duplicate = false;
char *found_uuid = NULL;
if (pcmk__simulate_node_config) {
create_node_entry(cib_conn, node);
}
rc = cib_conn->cmds->query(cib_conn, xpath, &cib_object,
cib_xpath|cib_sync_call);
if ((cib_object != NULL) && (pcmk__xe_id(cib_object) == NULL)) {
crm_err("Detected multiple " PCMK__XE_NODE_STATE " entries for "
"xpath=%s, bailing",
xpath);
duplicate = true;
goto done;
}
if (rc == -ENXIO) {
if (uuid == NULL) {
query_node_uuid(cib_conn, node, &found_uuid, NULL);
} else {
found_uuid = strdup(uuid);
}
if (found_uuid) {
char *xpath_by_uuid = crm_strdup_printf(XPATH_NODE_STATE_BY_ID,
found_uuid);
/* It's possible that a PCMK__XE_NODE_STATE entry doesn't have a
* PCMK_XA_UNAME yet
*/
rc = cib_conn->cmds->query(cib_conn, xpath_by_uuid, &cib_object,
cib_xpath|cib_sync_call);
if ((cib_object != NULL) && (pcmk__xe_id(cib_object) == NULL)) {
crm_err("Can't inject node state for %s because multiple "
"state entries found for ID %s", node, found_uuid);
duplicate = true;
free(xpath_by_uuid);
goto done;
} else if (cib_object != NULL) {
crm_xml_add(cib_object, PCMK_XA_UNAME, node);
rc = cib_conn->cmds->modify(cib_conn, PCMK_XE_STATUS,
cib_object, cib_sync_call);
}
free(xpath_by_uuid);
}
}
if (rc == -ENXIO) {
cib_object = pcmk__xe_create(NULL, PCMK__XE_NODE_STATE);
crm_xml_add(cib_object, PCMK_XA_ID, found_uuid);
crm_xml_add(cib_object, PCMK_XA_UNAME, node);
cib_conn->cmds->create(cib_conn, PCMK_XE_STATUS, cib_object,
cib_sync_call);
pcmk__xml_free(cib_object);
rc = cib_conn->cmds->query(cib_conn, xpath, &cib_object,
cib_xpath|cib_sync_call);
+ if (rc == -ENXIO) {
+ crm_trace("Node %s does not exist", node);
+ goto done;
+ }
+
crm_trace("Injecting node state for %s (rc=%d)", node, rc);
}
done:
free(found_uuid);
free(xpath);
if (duplicate) {
crm_log_xml_warn(cib_object, "Duplicates");
crm_exit(CRM_EX_SOFTWARE);
return NULL; // not reached, but makes static analysis happy
}
- pcmk__assert(rc == pcmk_ok);
return cib_object;
}
/*!
* \internal
* \brief Inject a fictitious node state change into a scheduler input
*
* \param[in,out] cib_conn Scheduler input CIB to inject into
* \param[in] node Name of node to inject change for
* \param[in] up If true, change state to online, otherwise offline
*
- * \return XML of changed (or added) node state entry
+ * \return XML of changed (or added) node state entry, or NULL if node is
+ * not valid
*/
xmlNode *
pcmk__inject_node_state_change(cib_t *cib_conn, const char *node, bool up)
{
xmlNode *cib_node = pcmk__inject_node(cib_conn, node, NULL);
+ if (cib_node == NULL) {
+ return cib_node;
+ }
+
if (up) {
pcmk__xe_set_props(cib_node,
PCMK__XA_IN_CCM, PCMK_VALUE_TRUE,
PCMK_XA_CRMD, PCMK_VALUE_ONLINE,
PCMK__XA_JOIN, CRMD_JOINSTATE_MEMBER,
PCMK_XA_EXPECTED, CRMD_JOINSTATE_MEMBER,
NULL);
} else {
pcmk__xe_set_props(cib_node,
PCMK__XA_IN_CCM, PCMK_VALUE_FALSE,
PCMK_XA_CRMD, PCMK_VALUE_OFFLINE,
PCMK__XA_JOIN, CRMD_JOINSTATE_DOWN,
PCMK_XA_EXPECTED, CRMD_JOINSTATE_DOWN,
NULL);
}
crm_xml_add(cib_node, PCMK_XA_CRM_DEBUG_ORIGIN, crm_system_name);
return cib_node;
}
/*!
* \internal
* \brief Check whether a node has history for a given resource
*
* \param[in,out] cib_node Node state XML to check
* \param[in] resource Resource name to check for
*
* \return Resource's \c PCMK__XE_LRM_RESOURCE XML entry beneath \p cib_node if
* found, otherwise \c NULL
*/
static xmlNode *
find_resource_xml(xmlNode *cib_node, const char *resource)
{
const char *node = crm_element_value(cib_node, PCMK_XA_UNAME);
char *xpath = crm_strdup_printf(XPATH_RSC_HISTORY, node, resource);
xmlNode *match = pcmk__xpath_find_one(cib_node->doc, xpath, LOG_TRACE);
free(xpath);
return match;
}
/*!
* \internal
* \brief Inject a resource history element into a scheduler input
*
* \param[in,out] out Output object for displaying error messages
* \param[in,out] cib_node Node state XML to inject resource history entry into
* \param[in] resource ID (in configuration) of resource to inject
* \param[in] lrm_name ID as used in history (could be clone instance)
* \param[in] rclass Resource agent class of resource to inject
* \param[in] rtype Resource agent type of resource to inject
* \param[in] rprovider Resource agent provider of resource to inject
*
* \return XML of injected resource history element
* \note If a history element already exists under either \p resource or
* \p lrm_name, this will return it rather than injecting a new one.
*/
xmlNode *
pcmk__inject_resource_history(pcmk__output_t *out, 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;
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) != 0) {
cib_resource = find_resource_xml(cib_node, lrm_name);
if (cib_resource != NULL) {
return cib_resource;
}
}
if ((rclass == NULL) || (rtype == NULL)) {
// @TODO query configuration for class, provider, type
out->err(out,
"Resource %s not found in the status section of %s "
"(supply class and type to continue)",
resource, pcmk__xe_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_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)) {
// @TODO query configuration for provider
out->err(out, "Please specify the provider for resource %s", resource);
return NULL;
}
crm_info("Injecting new resource %s into node state '%s'",
lrm_name, pcmk__xe_id(cib_node));
lrm = pcmk__xe_first_child(cib_node, PCMK__XE_LRM, NULL, NULL);
if (lrm == NULL) {
const char *node_uuid = pcmk__xe_id(cib_node);
lrm = pcmk__xe_create(cib_node, PCMK__XE_LRM);
crm_xml_add(lrm, PCMK_XA_ID, node_uuid);
}
container = pcmk__xe_first_child(lrm, PCMK__XE_LRM_RESOURCES, NULL, NULL);
if (container == NULL) {
container = pcmk__xe_create(lrm, PCMK__XE_LRM_RESOURCES);
}
cib_resource = pcmk__xe_create(container, PCMK__XE_LRM_RESOURCE);
// If we're creating a new entry, use the preferred name
crm_xml_add(cib_resource, PCMK_XA_ID, lrm_name);
crm_xml_add(cib_resource, PCMK_XA_CLASS, rclass);
crm_xml_add(cib_resource, PCMK_XA_PROVIDER, rprovider);
crm_xml_add(cib_resource, PCMK_XA_TYPE, rtype);
return cib_resource;
}
/*!
* \internal
* \brief Inject a ticket attribute into ticket state
*
* \param[in,out] out Output object for displaying error messages
* \param[in] ticket_id Ticket whose state should be changed
* \param[in] attr_name Ticket attribute name to inject
* \param[in] attr_value Boolean value of ticket attribute to inject
* \param[in,out] cib CIB object to use
*
* \return Standard Pacemaker return code
*/
static int
set_ticket_state_attr(pcmk__output_t *out, const char *ticket_id,
const char *attr_name, bool attr_value, cib_t *cib)
{
int rc = pcmk_rc_ok;
xmlNode *xml_top = NULL;
xmlNode *ticket_state_xml = NULL;
// Check for an existing ticket state entry
rc = pcmk__get_ticket_state(cib, ticket_id, &ticket_state_xml);
if (rc == pcmk_rc_duplicate_id) {
out->err(out, "Multiple " PCMK__XE_TICKET_STATE "s match ticket_id=%s",
ticket_id);
rc = pcmk_rc_ok;
}
if (rc == pcmk_rc_ok) { // Ticket state found, use it
crm_debug("Injecting attribute into existing ticket state %s",
ticket_id);
xml_top = ticket_state_xml;
} else if (rc == ENXIO) { // No ticket state, create it
xmlNode *xml_obj = NULL;
xml_top = pcmk__xe_create(NULL, PCMK_XE_STATUS);
xml_obj = pcmk__xe_create(xml_top, PCMK_XE_TICKETS);
ticket_state_xml = pcmk__xe_create(xml_obj, PCMK__XE_TICKET_STATE);
crm_xml_add(ticket_state_xml, PCMK_XA_ID, ticket_id);
} else { // Error
return rc;
}
// Add the attribute to the ticket state
pcmk__xe_set_bool_attr(ticket_state_xml, attr_name, attr_value);
crm_log_xml_debug(xml_top, "Update");
// Commit the change to the CIB
rc = cib->cmds->modify(cib, PCMK_XE_STATUS, xml_top, cib_sync_call);
rc = pcmk_legacy2rc(rc);
pcmk__xml_free(xml_top);
return rc;
}
/*!
* \internal
* \brief Inject a fictitious action into the cluster
*
* \param[in,out] out Output object for displaying error messages
* \param[in] spec Action specification to inject
* \param[in,out] cib CIB object for scheduler input
* \param[in] scheduler Scheduler data
*/
static void
inject_action(pcmk__output_t *out, const char *spec, cib_t *cib,
const pcmk_scheduler_t *scheduler)
{
int rc;
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;
xmlNode *cib_op = NULL;
xmlNode *cib_node = NULL;
xmlNode *cib_resource = NULL;
const pcmk_resource_t *rsc = NULL;
lrmd_event_data_t *op = NULL;
bool infinity = false;
out->message(out, "inject-spec", spec);
key = pcmk__assert_alloc(1, strlen(spec) + 1);
node = pcmk__assert_alloc(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);
goto done;
}
parse_op_key(key, &resource, &task, &interval_ms);
rsc = pe_find_resource(scheduler->priv->resources, resource);
if (rsc == NULL) {
out->err(out, "Invalid resource name: %s", resource);
goto done;
}
rclass = crm_element_value(rsc->priv->xml, PCMK_XA_CLASS);
rtype = crm_element_value(rsc->priv->xml, PCMK_XA_TYPE);
rprovider = crm_element_value(rsc->priv->xml, PCMK_XA_PROVIDER);
cib_node = pcmk__inject_node(cib, node, NULL);
- pcmk__assert(cib_node != NULL);
+ if (cib_node == NULL) {
+ out->err(out, "Node does not exist: %s", node);
+ goto done;
+ }
if (pcmk__str_eq(task, PCMK_ACTION_STOP, pcmk__str_none)) {
infinity = true;
} else if (pcmk__str_eq(task, PCMK_ACTION_START, pcmk__str_none)
&& pcmk_is_set(scheduler->flags,
pcmk__sched_start_failure_fatal)) {
infinity = true;
}
pcmk__inject_failcount(out, cib, cib_node, resource, task, interval_ms,
outcome, infinity);
cib_resource = pcmk__inject_resource_history(out, cib_node,
resource, resource,
rclass, rtype, rprovider);
pcmk__assert(cib_resource != NULL);
op = create_op(cib_resource, task, interval_ms, outcome);
pcmk__assert(op != NULL);
cib_op = pcmk__inject_action_result(cib_resource, op, node, 0);
pcmk__assert(cib_op != NULL);
lrmd_free_event(op);
rc = cib->cmds->modify(cib, PCMK_XE_STATUS, cib_node, cib_sync_call);
pcmk__assert(rc == pcmk_ok);
done:
free(task);
free(node);
free(key);
}
/*!
* \internal
* \brief Inject fictitious scheduler inputs
*
* \param[in,out] scheduler Scheduler data
* \param[in,out] cib CIB object for scheduler input to modify
* \param[in] injections Injections to apply
*/
void
pcmk__inject_scheduler_input(pcmk_scheduler_t *scheduler, cib_t *cib,
const pcmk_injections_t *injections)
{
int rc = pcmk_ok;
const GList *iter = NULL;
xmlNode *cib_node = NULL;
pcmk__output_t *out = scheduler->priv->out;
out->message(out, "inject-modify-config", injections->quorum,
injections->watchdog);
if (injections->quorum != NULL) {
xmlNode *top = pcmk__xe_create(NULL, PCMK_XE_CIB);
/* crm_xml_add(top, PCMK_XA_DC_UUID, dc_uuid); */
crm_xml_add(top, PCMK_XA_HAVE_QUORUM, injections->quorum);
rc = cib->cmds->modify(cib, NULL, top, cib_sync_call);
pcmk__assert(rc == pcmk_ok);
}
if (injections->watchdog != NULL) {
rc = cib__update_node_attr(out, cib, cib_sync_call, PCMK_XE_CRM_CONFIG,
NULL, NULL, NULL, NULL,
PCMK_OPT_HAVE_WATCHDOG, injections->watchdog,
NULL, NULL);
pcmk__assert(rc == pcmk_rc_ok);
}
for (iter = injections->node_up; iter != NULL; iter = iter->next) {
const char *node = (const char *) iter->data;
out->message(out, "inject-modify-node", "Online", node);
cib_node = pcmk__inject_node_state_change(cib, node, true);
- pcmk__assert(cib_node != NULL);
+ if (cib_node == NULL) {
+ out->err(out, "Node does not exist: %s", node);
+ continue;
+ }
rc = cib->cmds->modify(cib, PCMK_XE_STATUS, cib_node, cib_sync_call);
pcmk__assert(rc == pcmk_ok);
pcmk__xml_free(cib_node);
}
for (iter = injections->node_down; iter != NULL; iter = iter->next) {
const char *node = (const char *) iter->data;
char *xpath = NULL;
out->message(out, "inject-modify-node", "Offline", node);
cib_node = pcmk__inject_node_state_change(cib, node, false);
- pcmk__assert(cib_node != NULL);
+ if (cib_node == NULL) {
+ out->err(out, "Node does not exist: %s", node);
+ continue;
+ }
rc = cib->cmds->modify(cib, PCMK_XE_STATUS, cib_node, cib_sync_call);
pcmk__assert(rc == pcmk_ok);
pcmk__xml_free(cib_node);
xpath = crm_strdup_printf("//" PCMK__XE_NODE_STATE
"[@" PCMK_XA_UNAME "='%s']"
"/" PCMK__XE_LRM,
node);
cib->cmds->remove(cib, xpath, NULL, cib_xpath|cib_sync_call);
free(xpath);
xpath = crm_strdup_printf("//" PCMK__XE_NODE_STATE
"[@" PCMK_XA_UNAME "='%s']"
"/" PCMK__XE_TRANSIENT_ATTRIBUTES,
node);
cib->cmds->remove(cib, xpath, NULL, cib_xpath|cib_sync_call);
free(xpath);
}
for (iter = injections->node_fail; iter != NULL; iter = iter->next) {
const char *node = (const char *) iter->data;
out->message(out, "inject-modify-node", "Failing", node);
cib_node = pcmk__inject_node_state_change(cib, node, true);
- crm_xml_add(cib_node, PCMK__XA_IN_CCM, PCMK_VALUE_FALSE);
- pcmk__assert(cib_node != NULL);
+ if (cib_node == NULL) {
+ out->err(out, "Node does not exist: %s", node);
+ continue;
+ }
+ crm_xml_add(cib_node, PCMK__XA_IN_CCM, PCMK_VALUE_FALSE);
rc = cib->cmds->modify(cib, PCMK_XE_STATUS, cib_node, cib_sync_call);
pcmk__assert(rc == pcmk_ok);
pcmk__xml_free(cib_node);
}
for (iter = injections->ticket_grant; iter != NULL; iter = iter->next) {
const char *ticket_id = (const char *) iter->data;
out->message(out, "inject-modify-ticket", "Granting", ticket_id);
rc = set_ticket_state_attr(out, ticket_id, PCMK__XA_GRANTED, true, cib);
pcmk__assert(rc == pcmk_rc_ok);
}
for (iter = injections->ticket_revoke; iter != NULL; iter = iter->next) {
const char *ticket_id = (const char *) iter->data;
out->message(out, "inject-modify-ticket", "Revoking", ticket_id);
rc = set_ticket_state_attr(out, ticket_id, PCMK__XA_GRANTED, false,
cib);
pcmk__assert(rc == pcmk_rc_ok);
}
for (iter = injections->ticket_standby; iter != NULL; iter = iter->next) {
const char *ticket_id = (const char *) iter->data;
out->message(out, "inject-modify-ticket", "Standby", ticket_id);
rc = set_ticket_state_attr(out, ticket_id, PCMK_XA_STANDBY, true, cib);
pcmk__assert(rc == pcmk_rc_ok);
}
for (iter = injections->ticket_activate; iter != NULL; iter = iter->next) {
const char *ticket_id = (const char *) iter->data;
out->message(out, "inject-modify-ticket", "Activating", ticket_id);
rc = set_ticket_state_attr(out, ticket_id, PCMK_XA_STANDBY, false, cib);
pcmk__assert(rc == pcmk_rc_ok);
}
for (iter = injections->op_inject; iter != NULL; iter = iter->next) {
inject_action(out, (const char *) iter->data, cib, scheduler);
}
if (!out->is_quiet(out)) {
out->end_list(out);
}
}
void
pcmk_free_injections(pcmk_injections_t *injections)
{
if (injections == NULL) {
return;
}
g_list_free_full(injections->node_up, g_free);
g_list_free_full(injections->node_down, g_free);
g_list_free_full(injections->node_fail, g_free);
g_list_free_full(injections->op_fail, g_free);
g_list_free_full(injections->op_inject, g_free);
g_list_free_full(injections->ticket_grant, g_free);
g_list_free_full(injections->ticket_revoke, g_free);
g_list_free_full(injections->ticket_standby, g_free);
g_list_free_full(injections->ticket_activate, g_free);
free(injections->quorum);
free(injections->watchdog);
free(injections);
}
diff --git a/lib/pacemaker/pcmk_simulate.c b/lib/pacemaker/pcmk_simulate.c
index dbaf0d9da3..b141e095df 100644
--- a/lib/pacemaker/pcmk_simulate.c
+++ b/lib/pacemaker/pcmk_simulate.c
@@ -1,1069 +1,1082 @@
/*
* Copyright 2021-2025 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 <crm/cib/internal.h>
#include <crm/common/output.h>
#include <crm/common/results.h>
#include <crm/common/scheduler.h>
#include <pacemaker-internal.h>
#include <pacemaker.h>
#include <stdint.h> // uint32_t, uint64_t
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "libpacemaker_private.h"
static const char *profiling_dir = NULL;
static pcmk__output_t *out = NULL;
static cib_t *fake_cib = NULL;
static GList *fake_resource_list = NULL;
static const GList *fake_op_fail_list = NULL;
static void set_effective_date(pcmk_scheduler_t *scheduler, bool print_original,
const char *use_date);
/*!
* \internal
* \brief Create an action name for use in a dot graph
*
* \param[in] action Action to create name for
* \param[in] verbose If true, add action ID to name
*
* \return Newly allocated string with action name
* \note It is the caller's responsibility to free the result.
*/
static char *
create_action_name(const pcmk_action_t *action, bool verbose)
{
char *action_name = NULL;
const char *prefix = "";
const char *action_host = NULL;
const char *history_id = NULL;
const char *task = action->task;
if (action->node != NULL) {
action_host = action->node->priv->name;
} else if (!pcmk_is_set(action->flags, pcmk__action_pseudo)) {
action_host = "<none>";
}
if (pcmk__str_eq(action->task, PCMK_ACTION_CANCEL, pcmk__str_none)) {
prefix = "Cancel ";
task = action->cancel_task;
}
if (action->rsc != NULL) {
history_id = action->rsc->priv->history_id;
}
if (history_id != NULL) {
char *key = NULL;
guint interval_ms = 0;
if (pcmk__guint_from_hash(action->meta, PCMK_META_INTERVAL, 0,
&interval_ms) != pcmk_rc_ok) {
interval_ms = 0;
}
if (pcmk__strcase_any_of(action->task, PCMK_ACTION_NOTIFY,
PCMK_ACTION_NOTIFIED, NULL)) {
const char *n_type = g_hash_table_lookup(action->meta,
"notify_key_type");
const char *n_task = g_hash_table_lookup(action->meta,
"notify_key_operation");
pcmk__assert((n_type != NULL) && (n_task != NULL));
key = pcmk__notify_key(history_id, n_type, n_task);
} else {
key = pcmk__op_key(history_id, task, interval_ms);
}
if (action_host != NULL) {
action_name = crm_strdup_printf("%s%s %s",
prefix, key, action_host);
} else {
action_name = crm_strdup_printf("%s%s", prefix, key);
}
free(key);
} else if (pcmk__str_eq(action->task, PCMK_ACTION_STONITH,
pcmk__str_none)) {
const char *op = g_hash_table_lookup(action->meta,
PCMK__META_STONITH_ACTION);
action_name = crm_strdup_printf("%s%s '%s' %s",
prefix, action->task, op, action_host);
} else if (action->rsc && action_host) {
action_name = crm_strdup_printf("%s%s %s",
prefix, action->uuid, action_host);
} else if (action_host) {
action_name = crm_strdup_printf("%s%s %s",
prefix, action->task, action_host);
} else {
action_name = crm_strdup_printf("%s", action->uuid);
}
if (verbose) {
char *with_id = crm_strdup_printf("%s (%d)", action_name, action->id);
free(action_name);
action_name = with_id;
}
return action_name;
}
/*!
* \internal
* \brief Display the status of a cluster
*
* \param[in,out] scheduler Scheduler data
* \param[in] show_opts How to modify display (as pcmk_show_opt_e flags)
* \param[in] section_opts Sections to display (as pcmk_section_e flags)
* \param[in] title What to use as list title
* \param[in] print_spacer Whether to display a spacer first
*/
static void
print_cluster_status(pcmk_scheduler_t *scheduler, uint32_t show_opts,
uint32_t section_opts, const char *title,
bool print_spacer)
{
pcmk__output_t *out = scheduler->priv->out;
GList *all = NULL;
crm_exit_t stonith_rc = 0;
enum pcmk_pacemakerd_state state = pcmk_pacemakerd_state_invalid;
section_opts |= pcmk_section_nodes | pcmk_section_resources;
show_opts |= pcmk_show_inactive_rscs | pcmk_show_failed_detail;
all = g_list_prepend(all, (gpointer) "*");
PCMK__OUTPUT_SPACER_IF(out, print_spacer);
out->begin_list(out, NULL, NULL, "%s", title);
out->message(out, "cluster-status",
scheduler, state, stonith_rc, NULL,
pcmk__fence_history_none, section_opts, show_opts, NULL,
all, all);
out->end_list(out);
g_list_free(all);
}
/*!
* \internal
* \brief Display a summary of all actions scheduled in a transition
*
* \param[in,out] scheduler Scheduler data (fully scheduled)
* \param[in] print_spacer Whether to display a spacer first
*/
static void
print_transition_summary(pcmk_scheduler_t *scheduler, bool print_spacer)
{
pcmk__output_t *out = scheduler->priv->out;
PCMK__OUTPUT_SPACER_IF(out, print_spacer);
out->begin_list(out, NULL, NULL, "Transition Summary");
pcmk__output_actions(scheduler);
out->end_list(out);
}
/*!
* \internal
* \brief Reset scheduler, set some members, and unpack status
*
* \param[in,out] scheduler Scheduler data
* \param[in] input What to set as cluster input
* \param[in] out What to set as cluster output object
* \param[in] use_date What to set as cluster's current timestamp
* \param[in] flags Group of enum pcmk__scheduler_flags to set
*/
static void
reset(pcmk_scheduler_t *scheduler, xmlNodePtr input, pcmk__output_t *out,
const char *use_date, unsigned int flags)
{
pcmk_reset_scheduler(scheduler);
scheduler->input = input;
scheduler->priv->out = out;
set_effective_date(scheduler, true, use_date);
if (pcmk_is_set(flags, pcmk_sim_sanitized)) {
pcmk__set_scheduler_flags(scheduler, pcmk__sched_sanitized);
}
if (pcmk_is_set(flags, pcmk_sim_show_scores)) {
pcmk__set_scheduler_flags(scheduler, pcmk__sched_output_scores);
}
if (pcmk_is_set(flags, pcmk_sim_show_utilization)) {
pcmk__set_scheduler_flags(scheduler, pcmk__sched_show_utilization);
}
cluster_status(scheduler);
}
/*!
* \brief Write out a file in dot(1) format describing the actions that will
* be taken by the scheduler in response to an input CIB file.
*
* \param[in,out] scheduler Scheduler data
* \param[in] dot_file The filename to write
* \param[in] all_actions Write all actions, even those that are optional
* or are on unmanaged resources
* \param[in] verbose Add extra information, such as action IDs, to the
* output
*
* \return Standard Pacemaker return code
*/
static int
write_sim_dotfile(pcmk_scheduler_t *scheduler, const char *dot_file,
bool all_actions, bool verbose)
{
GList *iter = NULL;
FILE *dot_strm = fopen(dot_file, "w");
if (dot_strm == NULL) {
return errno;
}
fprintf(dot_strm, " digraph \"g\" {\n");
for (iter = scheduler->priv->actions; iter != NULL; iter = iter->next) {
pcmk_action_t *action = (pcmk_action_t *) iter->data;
const char *style = "dashed";
const char *font = "black";
const char *color = "black";
char *action_name = create_action_name(action, verbose);
if (pcmk_is_set(action->flags, pcmk__action_pseudo)) {
font = "orange";
}
if (pcmk_is_set(action->flags, pcmk__action_added_to_graph)) {
style = PCMK__VALUE_BOLD;
color = "green";
} else if ((action->rsc != NULL)
&& !pcmk_is_set(action->rsc->flags, pcmk__rsc_managed)) {
color = "red";
font = "purple";
if (!all_actions) {
goto do_not_write;
}
} else if (pcmk_is_set(action->flags, pcmk__action_optional)) {
color = "blue";
if (!all_actions) {
goto do_not_write;
}
} else {
color = "red";
CRM_LOG_ASSERT(!pcmk_is_set(action->flags, pcmk__action_runnable));
}
pcmk__set_action_flags(action, pcmk__action_added_to_graph);
fprintf(dot_strm, "\"%s\" [ style=%s color=\"%s\" fontcolor=\"%s\"]\n",
action_name, style, color, font);
do_not_write:
free(action_name);
}
for (iter = scheduler->priv->actions; iter != NULL; iter = iter->next) {
pcmk_action_t *action = (pcmk_action_t *) iter->data;
for (GList *before_iter = action->actions_before;
before_iter != NULL; before_iter = before_iter->next) {
pcmk__related_action_t *before = before_iter->data;
char *before_name = NULL;
char *after_name = NULL;
const char *style = "dashed";
bool optional = true;
if (before->graphed) {
optional = false;
style = PCMK__VALUE_BOLD;
} else if (before->flags == pcmk__ar_none) {
continue;
} else if (pcmk_is_set(before->action->flags,
pcmk__action_added_to_graph)
&& pcmk_is_set(action->flags, pcmk__action_added_to_graph)
&& before->flags != pcmk__ar_if_on_same_node_or_target) {
optional = false;
}
if (all_actions || !optional) {
before_name = create_action_name(before->action, verbose);
after_name = create_action_name(action, verbose);
fprintf(dot_strm, "\"%s\" -> \"%s\" [ style = %s]\n",
before_name, after_name, style);
free(before_name);
free(after_name);
}
}
}
fprintf(dot_strm, "}\n");
fflush(dot_strm);
fclose(dot_strm);
return pcmk_rc_ok;
}
/*!
* \internal
* \brief \c scandir() filter for scheduler input CIB files to profile
*
* \param[in] entry Directory entry
*
* \retval 1 if the filename ends with ".xml", does not begin with ".", and
* refers to a regular file
* \retval 0 otherwise
*/
static int
profile_filter(const struct dirent *entry)
{
const char *filename = entry->d_name;
char *buf = NULL;
struct stat sb;
int rc = 0;
if (pcmk__str_any_of(filename, ".", "..", NULL)) {
// Skip current (".") and parent ("..") directory links
goto done;
}
if (filename[0] == '.') {
crm_trace("Not profiling hidden file '%s'", filename);
goto done;
}
if (!pcmk__ends_with_ext(filename, ".xml")) {
crm_trace("Not profiling file '%s' without '.xml' extension", filename);
goto done;
}
buf = crm_strdup_printf("%s/%s", profiling_dir, filename);
if ((stat(buf, &sb) != 0) || !S_ISREG(sb.st_mode)) {
crm_trace("Not profiling file '%s': not a regular file", filename);
goto done;
}
rc = 1;
done:
free(buf);
return rc;
}
/*!
* \internal
* \brief Profile the configuration updates and scheduler actions in a single
* CIB file, printing the profiling timings.
*
* \note \p scheduler->priv->out must have been set to a valid \c pcmk__output_t
* object before this function is called.
*
* \param[in] xml_file The CIB file to profile
* \param[in] repeat Number of times to run
* \param[in,out] scheduler Scheduler data
* \param[in,out] flags Group of <tt>enum pcmk__scheduler_flags</tt> to set
* in addition to defaults
* \param[in] use_date The date to set the cluster's time to (may be NULL)
*/
static void
profile_file(const char *xml_file, unsigned int repeat,
pcmk_scheduler_t *scheduler, uint64_t flags, const char *use_date)
{
pcmk__output_t *out = scheduler->priv->out;
xmlNode *cib_object = NULL;
clock_t start = 0;
clock_t end;
pcmk__assert(out != NULL);
cib_object = pcmk__xml_read(xml_file);
start = clock();
if (pcmk_find_cib_element(cib_object, PCMK_XE_STATUS) == NULL) {
pcmk__xe_create(cib_object, PCMK_XE_STATUS);
}
if (pcmk__update_configured_schema(&cib_object, false) != pcmk_rc_ok) {
goto done;
}
if (!pcmk__validate_xml(cib_object, NULL, NULL, NULL)) {
goto done;
}
for (int i = 0; i < repeat; ++i) {
pcmk_reset_scheduler(scheduler);
scheduler->input = cib_object;
pcmk__set_scheduler_flags(scheduler, flags);
set_effective_date(scheduler, false, use_date);
pcmk__schedule_actions(scheduler);
// Avoid freeing cib_object in pcmk_reset_scheduler()
scheduler->input = NULL;
}
pcmk_reset_scheduler(scheduler);
end = clock();
out->message(out, "profile", xml_file, start, end);
done:
pcmk__xml_free(cib_object);
}
int
pcmk__profile_dir(pcmk__output_t *out, uint32_t flags, const char *dir,
unsigned int repeat, const char *use_date)
{
pcmk_scheduler_t *scheduler = NULL;
uint64_t scheduler_flags = pcmk__sched_none;
struct dirent **namelist;
int num_files = 0;
int rc = pcmk_rc_ok;
pcmk__assert(out != NULL);
scheduler = pcmk_new_scheduler();
if (scheduler == NULL) {
return ENOMEM;
}
scheduler->priv->out = out;
if (pcmk_is_set(flags, pcmk_sim_show_scores)) {
scheduler_flags |= pcmk__sched_output_scores;
}
if (pcmk_is_set(flags, pcmk_sim_show_utilization)) {
scheduler_flags |= pcmk__sched_show_utilization;
}
// Hack to pass user data to profile_filter
profiling_dir = dir;
num_files = scandir(dir, &namelist, profile_filter, alphasort);
profiling_dir = NULL;
if (num_files < 0) {
rc = errno;
goto done;
}
if (num_files == 0) {
goto done;
}
out->begin_list(out, NULL, NULL, "Timings");
for (int i = 0; i < num_files; i++) {
// glibc doesn't enforce PATH_MAX, so don't limit the buffer size
char *path = crm_strdup_printf("%s/%s", dir, namelist[i]->d_name);
profile_file(path, repeat, scheduler, scheduler_flags, use_date);
free(path);
free(namelist[i]);
}
out->end_list(out);
done:
pcmk_free_scheduler(scheduler);
free(namelist);
return rc;
}
/*!
* \brief Set the date of the cluster, either to the value given by
* \p use_date, or to the \c PCMK_XA_EXECUTION_DATE value in the CIB.
*
* \note \p scheduler->priv->out must have been set to a valid \p pcmk__output_t
* object before this function is called.
*
* \param[in,out] scheduler Scheduler data
* \param[in] print_original If \p true, the \c PCMK_XA_EXECUTION_DATE
* should also be printed
* \param[in] use_date The date to set the cluster's time to
* (may be NULL)
*/
static void
set_effective_date(pcmk_scheduler_t *scheduler, bool print_original,
const char *use_date)
{
pcmk__output_t *out = scheduler->priv->out;
time_t original_date = 0;
pcmk__assert(out != NULL);
crm_element_value_epoch(scheduler->input, PCMK_XA_EXECUTION_DATE,
&original_date);
if (use_date) {
scheduler->priv->now = crm_time_new(use_date);
out->info(out, "Setting effective cluster time: %s", use_date);
crm_time_log(LOG_NOTICE, "Pretending 'now' is", scheduler->priv->now,
crm_time_log_date | crm_time_log_timeofday);
} else if (original_date != 0) {
scheduler->priv->now = pcmk__copy_timet(original_date);
if (print_original) {
char *when = crm_time_as_string(scheduler->priv->now,
crm_time_log_date
|crm_time_log_timeofday);
out->info(out, "Using the original execution date of: %s", when);
free(when);
}
}
}
/*!
* \internal
* \brief Simulate successfully executing a pseudo-action in a graph
*
* \param[in,out] graph Graph to update with pseudo-action result
* \param[in,out] action Pseudo-action to simulate executing
*
* \return Standard Pacemaker return code
*/
static int
simulate_pseudo_action(pcmk__graph_t *graph, pcmk__graph_action_t *action)
{
const char *node = crm_element_value(action->xml, PCMK__META_ON_NODE);
const char *task = crm_element_value(action->xml, PCMK__XA_OPERATION_KEY);
pcmk__set_graph_action_flags(action, pcmk__graph_action_confirmed);
out->message(out, "inject-pseudo-action", node, task);
pcmk__update_graph(graph, action);
return pcmk_rc_ok;
}
/*!
* \internal
* \brief Simulate executing a resource action in a graph
*
* \param[in,out] graph Graph to update with resource action result
* \param[in,out] action Resource action to simulate executing
*
* \return Standard Pacemaker return code
*/
static int
simulate_resource_action(pcmk__graph_t *graph, pcmk__graph_action_t *action)
{
int rc;
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 *resource_config_name = NULL;
const char *operation = crm_element_value(action->xml, PCMK_XA_OPERATION);
const char *target_rc_s = crm_meta_value(action->params,
PCMK__META_OP_TARGET_RC);
xmlNode *cib_node = NULL;
xmlNode *cib_resource = NULL;
xmlNode *action_rsc = pcmk__xe_first_child(action->xml, PCMK_XE_PRIMITIVE,
NULL, NULL);
char *node = crm_element_value_copy(action->xml, PCMK__META_ON_NODE);
char *uuid = NULL;
const char *router_node = crm_element_value(action->xml,
PCMK__XA_ROUTER_NODE);
// Certain actions don't need to be displayed or history entries
if (pcmk__str_eq(operation, CRM_OP_REPROBE, pcmk__str_none)) {
crm_debug("No history injection for %s op on %s", operation, node);
goto done; // Confirm action and update graph
}
if (action_rsc == NULL) { // Shouldn't be possible
crm_log_xml_err(action->xml, "Bad");
free(node);
return EPROTO;
}
/* A resource might be known by different names in the configuration and in
* the action (for example, a clone instance). Grab the configuration name
* (which is preferred when writing history), and if necessary, the instance
* name.
*/
resource_config_name = crm_element_value(action_rsc, PCMK_XA_ID);
if (resource_config_name == NULL) { // Shouldn't be possible
crm_log_xml_err(action->xml, "No ID");
free(node);
return EPROTO;
}
resource = resource_config_name;
if (pe_find_resource(fake_resource_list, resource) == NULL) {
const char *longname = crm_element_value(action_rsc, PCMK__XA_LONG_ID);
if ((longname != NULL)
&& (pe_find_resource(fake_resource_list, longname) != NULL)) {
resource = longname;
}
}
// Certain actions need to be displayed but don't need history entries
if (pcmk__strcase_any_of(operation, PCMK_ACTION_DELETE,
PCMK_ACTION_META_DATA, NULL)) {
out->message(out, "inject-rsc-action", resource, operation, node,
(guint) 0);
goto done; // Confirm action and update graph
}
rclass = crm_element_value(action_rsc, PCMK_XA_CLASS);
rtype = crm_element_value(action_rsc, PCMK_XA_TYPE);
rprovider = crm_element_value(action_rsc, PCMK_XA_PROVIDER);
pcmk__scan_min_int(target_rc_s, &target_outcome, 0);
pcmk__assert(fake_cib->cmds->query(fake_cib, NULL, NULL,
cib_sync_call) == pcmk_ok);
// Ensure the action node is in the CIB
uuid = crm_element_value_copy(action->xml, PCMK__META_ON_NODE_UUID);
cib_node = pcmk__inject_node(fake_cib, node,
((router_node == NULL)? uuid: node));
+ if (cib_node == NULL) {
+ crm_err("Could not simulate action %d on unknown node %s",
+ action->id, node);
+ free(node);
+ free(uuid);
+ return EINVAL;
+ }
+
free(uuid);
- pcmk__assert(cib_node != NULL);
// Add a history entry for the action
cib_resource = pcmk__inject_resource_history(out, cib_node, resource,
resource_config_name,
rclass, rtype, rprovider);
if (cib_resource == NULL) {
crm_err("Could not simulate action %d history for resource %s",
action->id, resource);
free(node);
pcmk__xml_free(cib_node);
return EINVAL;
}
// Simulate and display an executor event for the action result
op = pcmk__event_from_graph_action(cib_resource, action, PCMK_EXEC_DONE,
target_outcome, "User-injected result");
out->message(out, "inject-rsc-action", resource, op->op_type, node,
op->interval_ms);
// Check whether action is in a list of desired simulated failures
for (const GList *iter = fake_op_fail_list;
iter != NULL; iter = iter->next) {
const char *spec = (const char *) iter->data;
char *key = NULL;
const char *match_name = NULL;
const char *offset = 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 not found, try the resource's name in the configuration
if ((match_name == NULL)
&& (strcmp(resource, resource_config_name) != 0)) {
key = crm_strdup_printf(PCMK__OP_FMT "@%s=", resource_config_name,
op->op_type, op->interval_ms, node);
if (strncasecmp(key, spec, strlen(key)) == 0) {
match_name = resource_config_name;
}
free(key);
}
if (match_name == NULL) {
continue; // This failed action entry doesn't match
}
// ${match_name}_${task}_${interval_in_ms}@${node}=${rc}
rc = sscanf(spec, "%*[^=]=%d", (int *) &op->rc);
if (rc != 1) {
out->err(out, "Invalid failed operation '%s' "
"(result code must be integer)", spec);
continue; // Keep checking other list entries
}
out->info(out, "Pretending action %d failed with rc=%d",
action->id, op->rc);
pcmk__set_graph_action_flags(action, pcmk__graph_action_failed);
graph->abort_priority = PCMK_SCORE_INFINITY;
if (pcmk__str_eq(op->op_type, PCMK_ACTION_START, pcmk__str_none)) {
offset = pcmk__s(graph->failed_start_offset, PCMK_VALUE_INFINITY);
} else if (pcmk__str_eq(op->op_type, PCMK_ACTION_STOP,
pcmk__str_none)) {
offset = pcmk__s(graph->failed_stop_offset, PCMK_VALUE_INFINITY);
}
pcmk__inject_failcount(out, fake_cib, cib_node, match_name, op->op_type,
op->interval_ms, op->rc,
pcmk_str_is_infinity(offset));
break;
}
pcmk__inject_action_result(cib_resource, op, node, target_outcome);
lrmd_free_event(op);
rc = fake_cib->cmds->modify(fake_cib, PCMK_XE_STATUS, cib_node,
cib_sync_call);
pcmk__assert(rc == pcmk_ok);
done:
free(node);
pcmk__xml_free(cib_node);
pcmk__set_graph_action_flags(action, pcmk__graph_action_confirmed);
pcmk__update_graph(graph, action);
return pcmk_rc_ok;
}
/*!
* \internal
* \brief Simulate successfully executing a cluster action
*
* \param[in,out] graph Graph to update with action result
* \param[in,out] action Cluster action to simulate
*
* \return Standard Pacemaker return code
*/
static int
simulate_cluster_action(pcmk__graph_t *graph, pcmk__graph_action_t *action)
{
const char *node = crm_element_value(action->xml, PCMK__META_ON_NODE);
const char *task = crm_element_value(action->xml, PCMK_XA_OPERATION);
xmlNode *rsc = pcmk__xe_first_child(action->xml, PCMK_XE_PRIMITIVE, NULL,
NULL);
pcmk__set_graph_action_flags(action, pcmk__graph_action_confirmed);
out->message(out, "inject-cluster-action", node, task, rsc);
pcmk__update_graph(graph, action);
return pcmk_rc_ok;
}
/*!
* \internal
* \brief Simulate successfully executing a fencing action
*
* \param[in,out] graph Graph to update with action result
* \param[in,out] action Fencing action to simulate
*
* \return Standard Pacemaker return code
*/
static int
simulate_fencing_action(pcmk__graph_t *graph, pcmk__graph_action_t *action)
{
const char *op = crm_meta_value(action->params, PCMK__META_STONITH_ACTION);
char *target = crm_element_value_copy(action->xml, PCMK__META_ON_NODE);
out->message(out, "inject-fencing-action", target, op);
if (!pcmk__str_eq(op, PCMK_ACTION_ON, pcmk__str_casei)) {
int rc = pcmk_ok;
GString *xpath = g_string_sized_new(512);
// Set node state to offline
xmlNode *cib_node = pcmk__inject_node_state_change(fake_cib, target,
false);
+ if (cib_node == NULL) {
+ out->err(out, "Could not simulate fencing action %d on unknown node %s",
+ action->id, target);
+ free(target);
+ return -EINVAL;
+ }
pcmk__assert(cib_node != NULL);
crm_xml_add(cib_node, PCMK_XA_CRM_DEBUG_ORIGIN, __func__);
rc = fake_cib->cmds->replace(fake_cib, PCMK_XE_STATUS, cib_node,
cib_sync_call);
pcmk__assert(rc == pcmk_ok);
// Simulate controller clearing node's resource history and attributes
pcmk__g_strcat(xpath,
"//" PCMK__XE_NODE_STATE
"[@" PCMK_XA_UNAME "='", target, "']/" PCMK__XE_LRM,
NULL);
fake_cib->cmds->remove(fake_cib, (const char *) xpath->str, NULL,
cib_xpath|cib_sync_call);
g_string_truncate(xpath, 0);
pcmk__g_strcat(xpath,
"//" PCMK__XE_NODE_STATE
"[@" PCMK_XA_UNAME "='", target, "']"
"/" PCMK__XE_TRANSIENT_ATTRIBUTES, NULL);
fake_cib->cmds->remove(fake_cib, (const char *) xpath->str, NULL,
cib_xpath|cib_sync_call);
pcmk__xml_free(cib_node);
g_string_free(xpath, TRUE);
}
pcmk__set_graph_action_flags(action, pcmk__graph_action_confirmed);
pcmk__update_graph(graph, action);
free(target);
return pcmk_rc_ok;
}
enum pcmk__graph_status
pcmk__simulate_transition(pcmk_scheduler_t *scheduler, cib_t *cib,
const GList *op_fail_list)
{
pcmk__graph_t *transition = NULL;
enum pcmk__graph_status graph_rc;
pcmk__graph_functions_t simulation_fns = {
simulate_pseudo_action,
simulate_resource_action,
simulate_cluster_action,
simulate_fencing_action,
};
out = scheduler->priv->out;
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(&simulation_fns);
transition = pcmk__unpack_graph(scheduler->priv->graph, crm_system_name);
pcmk__log_graph(LOG_DEBUG, transition);
fake_resource_list = scheduler->priv->resources;
do {
graph_rc = pcmk__execute_graph(transition);
} while (graph_rc == pcmk__graph_active);
fake_resource_list = NULL;
if (graph_rc != pcmk__graph_complete) {
out->err(out, "Transition failed: %s",
pcmk__graph_status2text(graph_rc));
pcmk__log_graph(LOG_ERR, transition);
out->err(out, "An invalid transition was produced");
}
pcmk__free_graph(transition);
if (!out->is_quiet(out)) {
// If not quiet, we'll need the resulting CIB for later display
xmlNode *cib_object = NULL;
int rc = fake_cib->cmds->query(fake_cib, NULL, &cib_object,
cib_sync_call);
pcmk__assert(rc == pcmk_ok);
pcmk_reset_scheduler(scheduler);
scheduler->input = cib_object;
out->end_list(out);
}
return graph_rc;
}
int
pcmk__simulate(pcmk_scheduler_t *scheduler, pcmk__output_t *out,
const pcmk_injections_t *injections, uint32_t flags,
uint32_t section_opts, const char *use_date,
const char *input_file, const char *graph_file,
const char *dot_file)
{
int printed = pcmk_rc_no_output;
int rc = pcmk_rc_ok;
xmlNodePtr input = NULL;
cib_t *cib = NULL;
rc = cib__signon_query(out, &cib, &input);
if (rc != pcmk_rc_ok) {
goto simulate_done;
}
reset(scheduler, input, out, use_date, flags);
if (!out->is_quiet(out)) {
const bool show_pending = pcmk_is_set(flags, pcmk_sim_show_pending);
if (pcmk_is_set(scheduler->flags, pcmk__sched_in_maintenance)) {
printed = out->message(out, "maint-mode", scheduler->flags);
}
if ((scheduler->priv->disabled_resources > 0)
|| (scheduler->priv->blocked_resources > 0)) {
PCMK__OUTPUT_SPACER_IF(out, printed == pcmk_rc_ok);
printed = out->info(out,
"%d of %d resource instances DISABLED and "
"%d BLOCKED from further action due to failure",
scheduler->priv->disabled_resources,
scheduler->priv->ninstances,
scheduler->priv->blocked_resources);
}
/* Most formatted output headers use caps for each word, but this one
* only has the first word capitalized for compatibility with pcs.
*/
print_cluster_status(scheduler, (show_pending? pcmk_show_pending : 0),
section_opts, "Current cluster status",
(printed == pcmk_rc_ok));
printed = pcmk_rc_ok;
}
// If the user requested any injections, handle them
if ((injections->node_down != NULL)
|| (injections->node_fail != NULL)
|| (injections->node_up != NULL)
|| (injections->op_inject != NULL)
|| (injections->ticket_activate != NULL)
|| (injections->ticket_grant != NULL)
|| (injections->ticket_revoke != NULL)
|| (injections->ticket_standby != NULL)
|| (injections->watchdog != NULL)) {
PCMK__OUTPUT_SPACER_IF(out, printed == pcmk_rc_ok);
pcmk__inject_scheduler_input(scheduler, cib, injections);
printed = pcmk_rc_ok;
rc = cib->cmds->query(cib, NULL, &input, cib_sync_call);
if (rc != pcmk_rc_ok) {
rc = pcmk_legacy2rc(rc);
goto simulate_done;
}
reset(scheduler, input, out, use_date, flags);
}
if (input_file != NULL) {
rc = pcmk__xml_write_file(input, input_file, false);
if (rc != pcmk_rc_ok) {
goto simulate_done;
}
}
if (pcmk_any_flags_set(flags, pcmk_sim_process | pcmk_sim_simulate)) {
pcmk__output_t *logger_out = NULL;
if (pcmk_all_flags_set(scheduler->flags,
pcmk__sched_output_scores
|pcmk__sched_show_utilization)) {
PCMK__OUTPUT_SPACER_IF(out, printed == pcmk_rc_ok);
out->begin_list(out, NULL, NULL,
"Assignment Scores and Utilization Information");
printed = pcmk_rc_ok;
} else if (pcmk_is_set(scheduler->flags, pcmk__sched_output_scores)) {
PCMK__OUTPUT_SPACER_IF(out, printed == pcmk_rc_ok);
out->begin_list(out, NULL, NULL, "Assignment Scores");
printed = pcmk_rc_ok;
} else if (pcmk_is_set(scheduler->flags, pcmk__sched_show_utilization)) {
PCMK__OUTPUT_SPACER_IF(out, printed == pcmk_rc_ok);
out->begin_list(out, NULL, NULL, "Utilization Information");
printed = pcmk_rc_ok;
} else {
rc = pcmk__log_output_new(&logger_out);
if (rc != pcmk_rc_ok) {
goto simulate_done;
}
pe__register_messages(logger_out);
pcmk__register_lib_messages(logger_out);
scheduler->priv->out = logger_out;
}
pcmk__schedule_actions(scheduler);
if (logger_out == NULL) {
out->end_list(out);
} else {
logger_out->finish(logger_out, CRM_EX_OK, true, NULL);
pcmk__output_free(logger_out);
scheduler->priv->out = out;
}
input = NULL; /* Don't try and free it twice */
if (graph_file != NULL) {
rc = pcmk__xml_write_file(scheduler->priv->graph, graph_file,
false);
if (rc != pcmk_rc_ok) {
rc = pcmk_rc_graph_error;
goto simulate_done;
}
}
if (dot_file != NULL) {
rc = write_sim_dotfile(scheduler, dot_file,
pcmk_is_set(flags, pcmk_sim_all_actions),
pcmk_is_set(flags, pcmk_sim_verbose));
if (rc != pcmk_rc_ok) {
rc = pcmk_rc_dot_error;
goto simulate_done;
}
}
if (!out->is_quiet(out)) {
print_transition_summary(scheduler, printed == pcmk_rc_ok);
}
}
rc = pcmk_rc_ok;
if (!pcmk_is_set(flags, pcmk_sim_simulate)) {
goto simulate_done;
}
PCMK__OUTPUT_SPACER_IF(out, printed == pcmk_rc_ok);
if (pcmk__simulate_transition(scheduler, cib, injections->op_fail)
!= pcmk__graph_complete) {
rc = pcmk_rc_invalid_transition;
}
if (out->is_quiet(out)) {
goto simulate_done;
}
set_effective_date(scheduler, true, use_date);
if (pcmk_is_set(flags, pcmk_sim_show_scores)) {
pcmk__set_scheduler_flags(scheduler, pcmk__sched_output_scores);
}
if (pcmk_is_set(flags, pcmk_sim_show_utilization)) {
pcmk__set_scheduler_flags(scheduler, pcmk__sched_show_utilization);
}
cluster_status(scheduler);
print_cluster_status(scheduler, 0, section_opts, "Revised Cluster Status",
true);
simulate_done:
cib__clean_up_connection(&cib);
return rc;
}
// @COMPAT Use uint32_t for flags
int
pcmk_simulate(xmlNodePtr *xml, pcmk_scheduler_t *scheduler,
const pcmk_injections_t *injections, unsigned int flags,
unsigned int section_opts, const char *use_date,
const char *input_file, const char *graph_file,
const char *dot_file)
{
pcmk__output_t *out = NULL;
int rc = pcmk_rc_ok;
rc = pcmk__xml_output_new(&out, xml);
if (rc != pcmk_rc_ok) {
return rc;
}
pe__register_messages(out);
pcmk__register_lib_messages(out);
rc = pcmk__simulate(scheduler, out, injections, (uint32_t) flags,
(uint32_t) section_opts, use_date, input_file,
graph_file, dot_file);
pcmk__xml_output_finish(out, pcmk_rc2exitc(rc), xml);
return rc;
}
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