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diff --git a/daemons/fenced/cts-fence-helper.c b/daemons/fenced/cts-fence-helper.c
index 42c1730324..c2c4fa7267 100644
--- a/daemons/fenced/cts-fence-helper.c
+++ b/daemons/fenced/cts-fence-helper.c
@@ -1,665 +1,665 @@
/*
* Copyright 2009-2025 the Pacemaker project contributors
*
* This source code is licensed under the GNU General Public License version 2
* or later (GPLv2+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#include <sys/param.h>
#include <stdio.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <sys/utsname.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <crm/crm.h>
#include <crm/common/ipc.h>
#include <crm/cluster/internal.h>
#include <crm/stonith-ng.h>
#include <crm/fencing/internal.h>
#include <crm/common/agents.h>
#include <crm/common/cmdline_internal.h>
#include <crm/common/xml.h>
#include <crm/common/mainloop.h>
#define SUMMARY "cts-fence-helper - inject commands into the Pacemaker fencer and watch for events"
static GMainLoop *mainloop = NULL;
static crm_trigger_t *trig = NULL;
static int mainloop_iter = 0;
static pcmk__action_result_t result = PCMK__UNKNOWN_RESULT;
typedef void (*mainloop_test_iteration_cb) (int check_event);
#define MAINLOOP_DEFAULT_TIMEOUT 2
enum test_modes {
test_standard = 0, // test using a specific developer environment
test_api_sanity, // sanity-test stonith client API using fence_dummy
test_api_mainloop, // sanity-test mainloop code with async responses
};
struct {
enum test_modes mode;
} options = {
.mode = test_standard
};
static gboolean
mode_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
if (pcmk__str_any_of(option_name, "--mainloop_api_test", "-m", NULL)) {
options.mode = test_api_mainloop;
} else if (pcmk__str_any_of(option_name, "--api_test", "-t", NULL)) {
options.mode = test_api_sanity;
}
return TRUE;
}
static GOptionEntry entries[] = {
{ "mainloop_api_test", 'm', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, mode_cb,
NULL, NULL,
},
{ "api_test", 't', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, mode_cb,
NULL, NULL,
},
{ NULL }
};
static stonith_t *st = NULL;
static struct pollfd pollfd;
static const int st_opts = st_opt_sync_call;
static int expected_notifications = 0;
static int verbose = 0;
static void
mainloop_test_done(const char *origin, bool pass)
{
if (pass) {
crm_info("SUCCESS - %s", origin);
mainloop_iter++;
mainloop_set_trigger(trig);
result.execution_status = PCMK_EXEC_DONE;
result.exit_status = CRM_EX_OK;
} else {
crm_err("FAILURE - %s (%d: %s)", origin, result.exit_status,
pcmk_exec_status_str(result.execution_status));
crm_exit(CRM_EX_ERROR);
}
}
static void
dispatch_helper(int timeout)
{
int rc;
crm_debug("Looking for notification");
pollfd.events = POLLIN;
while (true) {
rc = poll(&pollfd, 1, timeout); /* wait 10 minutes, -1 forever */
if (rc > 0) {
if (stonith__api_dispatch(st) != pcmk_rc_ok) {
break;
}
} else {
break;
}
}
}
static void
st_callback(stonith_t * st, stonith_event_t * e)
{
char *desc = NULL;
if (st->state == stonith_disconnected) {
crm_exit(CRM_EX_DISCONNECT);
}
desc = stonith__event_description(e);
crm_notice("%s", desc);
free(desc);
if (expected_notifications) {
expected_notifications--;
}
}
static void
st_global_callback(stonith_t * stonith, stonith_callback_data_t * data)
{
crm_notice("Call %d exited %d: %s (%s)",
data->call_id, stonith__exit_status(data),
stonith__execution_status(data),
pcmk__s(stonith__exit_reason(data), "unspecified reason"));
}
#define single_test(cmd, str, num_notifications, expected_rc) \
{ \
int rc = 0; \
rc = cmd; \
expected_notifications = 0; \
if (num_notifications) { \
expected_notifications = num_notifications; \
dispatch_helper(500); \
} \
if (rc != expected_rc) { \
crm_err("FAILURE - expected rc %d != %d(%s) for cmd - %s", expected_rc, rc, pcmk_strerror(rc), str); \
crm_exit(CRM_EX_ERROR); \
} else if (expected_notifications) { \
crm_err("FAILURE - expected %d notifications, got only %d for cmd - %s", \
num_notifications, num_notifications - expected_notifications, str); \
crm_exit(CRM_EX_ERROR); \
} else { \
if (verbose) { \
crm_info("SUCCESS - %s: %d", str, rc); \
} else { \
crm_debug("SUCCESS - %s: %d", str, rc); \
} \
} \
}\
static void
run_fence_failure_test(void)
{
stonith_key_value_t *params = NULL;
- params = stonith__key_value_add(params, PCMK_STONITH_HOST_MAP,
+ params = stonith__key_value_add(params, PCMK_FENCING_HOST_MAP,
"false_1_node1=1,2 false_1_node2=3,4");
params = stonith__key_value_add(params, "mode", "fail");
single_test(st->
cmds->register_device(st, st_opts, "test-id1", "stonith-ng", "fence_dummy", params),
"Register device1 for failure test", 1, 0);
single_test(st->cmds->fence(st, st_opts, "false_1_node2", PCMK_ACTION_OFF,
3, 0),
"Fence failure results off", 1, -ENODATA);
single_test(st->cmds->fence(st, st_opts, "false_1_node2",
PCMK_ACTION_REBOOT, 3, 0),
"Fence failure results reboot", 1, -ENODATA);
single_test(st->cmds->remove_device(st, st_opts, "test-id1"),
"Remove device1 for failure test", 1, 0);
stonith__key_value_freeall(params, true, true);
}
static void
run_fence_failure_rollover_test(void)
{
stonith_key_value_t *params = NULL;
- params = stonith__key_value_add(params, PCMK_STONITH_HOST_MAP,
+ params = stonith__key_value_add(params, PCMK_FENCING_HOST_MAP,
"false_1_node1=1,2 false_1_node2=3,4");
params = stonith__key_value_add(params, "mode", "fail");
single_test(st->
cmds->register_device(st, st_opts, "test-id1", "stonith-ng", "fence_dummy", params),
"Register device1 for rollover test", 1, 0);
stonith__key_value_freeall(params, true, true);
params = NULL;
- params = stonith__key_value_add(params, PCMK_STONITH_HOST_MAP,
+ params = stonith__key_value_add(params, PCMK_FENCING_HOST_MAP,
"false_1_node1=1,2 false_1_node2=3,4");
params = stonith__key_value_add(params, "mode", "pass");
single_test(st->
cmds->register_device(st, st_opts, "test-id2", "stonith-ng", "fence_dummy", params),
"Register device2 for rollover test", 1, 0);
single_test(st->cmds->fence(st, st_opts, "false_1_node2", PCMK_ACTION_OFF,
3, 0),
"Fence rollover results off", 1, 0);
/* Expect -ENODEV because fence_dummy requires 'on' to be executed on target */
single_test(st->cmds->fence(st, st_opts, "false_1_node2", PCMK_ACTION_ON, 3,
0),
"Fence rollover results on", 1, -ENODEV);
single_test(st->cmds->remove_device(st, st_opts, "test-id1"),
"Remove device1 for rollover tests", 1, 0);
single_test(st->cmds->remove_device(st, st_opts, "test-id2"),
"Remove device2 for rollover tests", 1, 0);
stonith__key_value_freeall(params, true, true);
}
static void
run_standard_test(void)
{
stonith_key_value_t *params = NULL;
- params = stonith__key_value_add(params, PCMK_STONITH_HOST_MAP,
+ params = stonith__key_value_add(params, PCMK_FENCING_HOST_MAP,
"false_1_node1=1,2 false_1_node2=3,4");
params = stonith__key_value_add(params, "mode", "pass");
params = stonith__key_value_add(params, "mock_dynamic_hosts",
"false_1_node1 false_1_node2");
single_test(st->
cmds->register_device(st, st_opts, "test-id", "stonith-ng", "fence_dummy", params),
"Register", 1, 0);
stonith__key_value_freeall(params, true, true);
params = NULL;
single_test(st->cmds->list(st, st_opts, "test-id", NULL, 1),
PCMK_ACTION_LIST, 0, 0);
single_test(st->cmds->monitor(st, st_opts, "test-id", 1), "Monitor", 0, 0);
single_test(st->cmds->status(st, st_opts, "test-id", "false_1_node2", 1),
"Status false_1_node2", 0, 0);
single_test(st->cmds->status(st, st_opts, "test-id", "false_1_node1", 1),
"Status false_1_node1", 0, 0);
single_test(st->cmds->fence(st, st_opts, "unknown-host", PCMK_ACTION_OFF,
1, 0),
"Fence unknown-host (expected failure)", 0, -ENODEV);
single_test(st->cmds->fence(st, st_opts, "false_1_node1", PCMK_ACTION_OFF,
1, 0),
"Fence false_1_node1", 1, 0);
/* Expect -ENODEV because fence_dummy requires 'on' to be executed on target */
single_test(st->cmds->fence(st, st_opts, "false_1_node1", PCMK_ACTION_ON, 1,
0),
"Unfence false_1_node1", 1, -ENODEV);
/* Confirm that an invalid level index is rejected */
single_test(st->cmds->register_level(st, st_opts, "node1", 999, params),
"Attempt to register an invalid level index", 0, -EINVAL);
single_test(st->cmds->remove_device(st, st_opts, "test-id"), "Remove test-id", 1, 0);
stonith__key_value_freeall(params, true, true);
}
static void
sanity_tests(void)
{
int rc = 0;
rc = st->cmds->connect(st, crm_system_name, &pollfd.fd);
if (rc != pcmk_ok) {
stonith__api_free(st);
crm_exit(CRM_EX_DISCONNECT);
}
st->cmds->register_notification(st, PCMK__VALUE_ST_NOTIFY_DISCONNECT,
st_callback);
st->cmds->register_notification(st, PCMK__VALUE_ST_NOTIFY_FENCE,
st_callback);
st->cmds->register_notification(st, STONITH_OP_DEVICE_ADD, st_callback);
st->cmds->register_notification(st, STONITH_OP_DEVICE_DEL, st_callback);
st->cmds->register_callback(st, 0, 120, st_opt_timeout_updates, NULL, "st_global_callback",
st_global_callback);
crm_info("Starting API Sanity Tests");
run_standard_test();
run_fence_failure_test();
run_fence_failure_rollover_test();
crm_info("Sanity Tests Passed");
}
static void
standard_dev_test(void)
{
int rc = 0;
char *tmp = NULL;
stonith_key_value_t *params = NULL;
rc = st->cmds->connect(st, crm_system_name, &pollfd.fd);
if (rc != pcmk_ok) {
stonith__api_free(st);
crm_exit(CRM_EX_DISCONNECT);
}
- params = stonith__key_value_add(params, PCMK_STONITH_HOST_MAP,
+ params = stonith__key_value_add(params, PCMK_FENCING_HOST_MAP,
"some-host=pcmk-7 true_1_node1=3,4");
rc = st->cmds->register_device(st, st_opts, "test-id", "stonith-ng", "fence_xvm", params);
crm_debug("Register: %d", rc);
rc = st->cmds->list(st, st_opts, "test-id", &tmp, 10);
crm_debug("List: %d output: %s", rc, tmp ? tmp : "<none>");
rc = st->cmds->monitor(st, st_opts, "test-id", 10);
crm_debug("Monitor: %d", rc);
rc = st->cmds->status(st, st_opts, "test-id", "false_1_node2", 10);
crm_debug("Status false_1_node2: %d", rc);
rc = st->cmds->status(st, st_opts, "test-id", "false_1_node1", 10);
crm_debug("Status false_1_node1: %d", rc);
rc = st->cmds->fence(st, st_opts, "unknown-host", PCMK_ACTION_OFF, 60, 0);
crm_debug("Fence unknown-host: %d", rc);
rc = st->cmds->status(st, st_opts, "test-id", "false_1_node1", 10);
crm_debug("Status false_1_node1: %d", rc);
rc = st->cmds->fence(st, st_opts, "false_1_node1", PCMK_ACTION_OFF, 60, 0);
crm_debug("Fence false_1_node1: %d", rc);
rc = st->cmds->status(st, st_opts, "test-id", "false_1_node1", 10);
crm_debug("Status false_1_node1: %d", rc);
rc = st->cmds->fence(st, st_opts, "false_1_node1", PCMK_ACTION_ON, 10, 0);
crm_debug("Unfence false_1_node1: %d", rc);
rc = st->cmds->status(st, st_opts, "test-id", "false_1_node1", 10);
crm_debug("Status false_1_node1: %d", rc);
rc = st->cmds->fence(st, st_opts, "some-host", PCMK_ACTION_OFF, 10, 0);
crm_debug("Fence alias: %d", rc);
rc = st->cmds->status(st, st_opts, "test-id", "some-host", 10);
crm_debug("Status alias: %d", rc);
rc = st->cmds->fence(st, st_opts, "false_1_node1", PCMK_ACTION_ON, 10, 0);
crm_debug("Unfence false_1_node1: %d", rc);
rc = st->cmds->remove_device(st, st_opts, "test-id");
crm_debug("Remove test-id: %d", rc);
stonith__key_value_freeall(params, true, true);
}
static void
iterate_mainloop_tests(gboolean event_ready);
static void
mainloop_callback(stonith_t * stonith, stonith_callback_data_t * data)
{
pcmk__set_result(&result, stonith__exit_status(data),
stonith__execution_status(data),
stonith__exit_reason(data));
iterate_mainloop_tests(TRUE);
}
static int
register_callback_helper(int callid)
{
return st->cmds->register_callback(st,
callid,
MAINLOOP_DEFAULT_TIMEOUT,
st_opt_timeout_updates, NULL, "callback", mainloop_callback);
}
static void
test_async_fence_pass(int check_event)
{
int rc = 0;
if (check_event) {
mainloop_test_done(__func__, (result.exit_status == CRM_EX_OK));
return;
}
rc = st->cmds->fence(st, 0, "true_1_node1", PCMK_ACTION_OFF,
MAINLOOP_DEFAULT_TIMEOUT, 0);
if (rc < 0) {
crm_err("fence failed with rc %d", rc);
mainloop_test_done(__func__, false);
}
register_callback_helper(rc);
/* wait for event */
}
#define CUSTOM_TIMEOUT_ADDITION 10
static void
test_async_fence_custom_timeout(int check_event)
{
int rc = 0;
static time_t begin = 0;
if (check_event) {
uint32_t diff = (time(NULL) - begin);
if (result.execution_status != PCMK_EXEC_TIMEOUT) {
mainloop_test_done(__func__, false);
} else if (diff < CUSTOM_TIMEOUT_ADDITION + MAINLOOP_DEFAULT_TIMEOUT) {
crm_err
("Custom timeout test failed, callback expiration should be updated to %d, actual timeout was %d",
CUSTOM_TIMEOUT_ADDITION + MAINLOOP_DEFAULT_TIMEOUT, diff);
mainloop_test_done(__func__, false);
} else {
mainloop_test_done(__func__, true);
}
return;
}
begin = time(NULL);
rc = st->cmds->fence(st, 0, "custom_timeout_node1", PCMK_ACTION_OFF,
MAINLOOP_DEFAULT_TIMEOUT, 0);
if (rc < 0) {
crm_err("fence failed with rc %d", rc);
mainloop_test_done(__func__, false);
}
register_callback_helper(rc);
/* wait for event */
}
static void
test_async_fence_timeout(int check_event)
{
int rc = 0;
if (check_event) {
mainloop_test_done(__func__,
(result.execution_status == PCMK_EXEC_NO_FENCE_DEVICE));
return;
}
rc = st->cmds->fence(st, 0, "false_1_node2", PCMK_ACTION_OFF,
MAINLOOP_DEFAULT_TIMEOUT, 0);
if (rc < 0) {
crm_err("fence failed with rc %d", rc);
mainloop_test_done(__func__, false);
}
register_callback_helper(rc);
/* wait for event */
}
static void
test_async_monitor(int check_event)
{
int rc = 0;
if (check_event) {
mainloop_test_done(__func__, (result.exit_status == CRM_EX_OK));
return;
}
rc = st->cmds->monitor(st, 0, "false_1", MAINLOOP_DEFAULT_TIMEOUT);
if (rc < 0) {
crm_err("monitor failed with rc %d", rc);
mainloop_test_done(__func__, false);
}
register_callback_helper(rc);
/* wait for event */
}
static void
test_register_async_devices(int check_event)
{
char *off_timeout_s = pcmk__itoa(MAINLOOP_DEFAULT_TIMEOUT
+ CUSTOM_TIMEOUT_ADDITION);
stonith_key_value_t *params = NULL;
- params = stonith__key_value_add(params, PCMK_STONITH_HOST_MAP,
+ params = stonith__key_value_add(params, PCMK_FENCING_HOST_MAP,
"false_1_node1=1,2");
params = stonith__key_value_add(params, "mode", "fail");
st->cmds->register_device(st, st_opts, "false_1", "stonith-ng", "fence_dummy", params);
stonith__key_value_freeall(params, true, true);
params = NULL;
- params = stonith__key_value_add(params, PCMK_STONITH_HOST_MAP,
+ params = stonith__key_value_add(params, PCMK_FENCING_HOST_MAP,
"true_1_node1=1,2");
params = stonith__key_value_add(params, "mode", "pass");
st->cmds->register_device(st, st_opts, "true_1", "stonith-ng", "fence_dummy", params);
stonith__key_value_freeall(params, true, true);
params = NULL;
- params = stonith__key_value_add(params, PCMK_STONITH_HOST_MAP,
+ params = stonith__key_value_add(params, PCMK_FENCING_HOST_MAP,
"custom_timeout_node1=1,2");
params = stonith__key_value_add(params, "mode", "fail");
params = stonith__key_value_add(params, "delay", "1000");
params = stonith__key_value_add(params, "pcmk_off_timeout", off_timeout_s);
st->cmds->register_device(st, st_opts, "false_custom_timeout", "stonith-ng", "fence_dummy",
params);
stonith__key_value_freeall(params, true, true);
free(off_timeout_s);
mainloop_test_done(__func__, true);
}
static void
try_mainloop_connect(int check_event)
{
int rc = stonith__api_connect_retry(st, crm_system_name, 10);
if (rc == pcmk_rc_ok) {
mainloop_test_done(__func__, true);
return;
}
crm_err("API CONNECTION FAILURE");
mainloop_test_done(__func__, false);
}
static void
iterate_mainloop_tests(gboolean event_ready)
{
static mainloop_test_iteration_cb callbacks[] = {
try_mainloop_connect,
test_register_async_devices,
test_async_monitor,
test_async_fence_pass,
test_async_fence_timeout,
test_async_fence_custom_timeout,
};
if (mainloop_iter == (sizeof(callbacks) / sizeof(mainloop_test_iteration_cb))) {
/* all tests ran, everything passed */
crm_info("ALL MAINLOOP TESTS PASSED!");
crm_exit(CRM_EX_OK);
}
callbacks[mainloop_iter] (event_ready);
}
static gboolean
trigger_iterate_mainloop_tests(gpointer user_data)
{
iterate_mainloop_tests(FALSE);
return TRUE;
}
static void
test_shutdown(int nsig)
{
int rc = 0;
if (st) {
rc = st->cmds->disconnect(st);
crm_info("Disconnect: %d", rc);
crm_debug("Destroy");
stonith__api_free(st);
}
if (rc) {
crm_exit(CRM_EX_ERROR);
}
}
static void
mainloop_tests(void)
{
trig = mainloop_add_trigger(G_PRIORITY_HIGH, trigger_iterate_mainloop_tests, NULL);
mainloop_set_trigger(trig);
mainloop_add_signal(SIGTERM, test_shutdown);
crm_info("Starting");
mainloop = g_main_loop_new(NULL, FALSE);
g_main_loop_run(mainloop);
}
static GOptionContext *
build_arg_context(pcmk__common_args_t *args, GOptionGroup **group) {
GOptionContext *context = NULL;
context = pcmk__build_arg_context(args, NULL, group, NULL);
pcmk__add_main_args(context, entries);
return context;
}
int
main(int argc, char **argv)
{
GError *error = NULL;
crm_exit_t exit_code = CRM_EX_OK;
pcmk__common_args_t *args = pcmk__new_common_args(SUMMARY);
gchar **processed_args = pcmk__cmdline_preproc(argv, NULL);
GOptionContext *context = build_arg_context(args, NULL);
if (!g_option_context_parse_strv(context, &processed_args, &error)) {
exit_code = CRM_EX_USAGE;
goto done;
}
/* We have to use crm_log_init here to set up the logging because there's
* different handling for daemons vs. command line programs, and
* pcmk__cli_init_logging is set up to only handle the latter.
*/
crm_log_init(NULL, LOG_INFO, TRUE, (verbose? TRUE : FALSE), argc, argv,
FALSE);
for (int i = 0; i < args->verbosity; i++) {
crm_bump_log_level(argc, argv);
}
st = stonith__api_new();
if (st == NULL) {
exit_code = CRM_EX_DISCONNECT;
g_set_error(&error, PCMK__EXITC_ERROR, exit_code,
"Could not connect to fencer: API memory allocation failed");
goto done;
}
switch (options.mode) {
case test_standard:
standard_dev_test();
break;
case test_api_sanity:
sanity_tests();
break;
case test_api_mainloop:
mainloop_tests();
break;
}
test_shutdown(0);
done:
g_strfreev(processed_args);
pcmk__free_arg_context(context);
pcmk__output_and_clear_error(&error, NULL);
crm_exit(exit_code);
}
diff --git a/daemons/fenced/fenced_commands.c b/daemons/fenced/fenced_commands.c
index eef2429712..0ad57d8b21 100644
--- a/daemons/fenced/fenced_commands.c
+++ b/daemons/fenced/fenced_commands.c
@@ -1,3664 +1,3664 @@
/*
* 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 <sys/param.h>
#include <stdbool.h> // bool
#include <stdio.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <unistd.h>
#include <sys/utsname.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <ctype.h>
#include <libxml/tree.h> // xmlNode
#include <libxml/xpath.h> // xmlXPathObject, etc.
#include <crm/crm.h>
#include <crm/common/ipc.h>
#include <crm/common/ipc_internal.h>
#include <crm/cluster/internal.h>
#include <crm/common/mainloop.h>
#include <crm/stonith-ng.h>
#include <crm/fencing/internal.h>
#include <crm/common/xml.h>
#include <pacemaker-fenced.h>
static GHashTable *device_table = NULL;
GHashTable *topology = NULL;
static GList *cmd_list = NULL;
static GHashTable *fenced_handlers = NULL;
struct device_search_s {
/* target of fence action */
char *host;
/* requested fence action */
char *action;
/* timeout to use if a device is queried dynamically for possible targets */
// @TODO This name is misleading now, it's the value of fencing-timeout
int per_device_timeout;
/* number of registered fencing devices at time of request */
int replies_needed;
/* number of device replies received so far */
int replies_received;
/* whether the target is eligible to perform requested action (or off) */
bool allow_self;
/* private data to pass to search callback function */
void *user_data;
/* function to call when all replies have been received */
void (*callback) (GList * devices, void *user_data);
/* devices capable of performing requested action (or off if remapping) */
GList *capable;
/* Whether to perform searches that support the action */
uint32_t support_action_only;
};
static gboolean stonith_device_dispatch(gpointer user_data);
static void st_child_done(int pid, const pcmk__action_result_t *result,
void *user_data);
static void search_devices_record_result(struct device_search_s *search, const char *device,
gboolean can_fence);
static int get_agent_metadata(const char *agent, xmlNode **metadata);
static void read_action_metadata(fenced_device_t *device);
static enum fenced_target_by unpack_level_kind(const xmlNode *level);
typedef struct {
int id;
uint32_t options;
int default_timeout; /* seconds */
int timeout; /* seconds */
int start_delay; // seconds (-1 means disable static/random fencing delays)
int delay_id;
char *op;
char *origin;
char *client;
char *client_name;
char *remote_op_id;
char *target;
char *action;
char *device;
//! Head of device list (used only for freeing list with command object)
GList *device_list;
//! Next item to process in \c device_list
GList *next_device_iter;
void *internal_user_data;
void (*done_cb) (int pid, const pcmk__action_result_t *result,
void *user_data);
fenced_device_t *active_on;
fenced_device_t *activating_on;
} async_command_t;
static xmlNode *construct_async_reply(const async_command_t *cmd,
const pcmk__action_result_t *result);
/*!
* \internal
* \brief Set a bad fencer API request error in a result object
*
* \param[out] result Result to set
*/
static inline void
set_bad_request_result(pcmk__action_result_t *result)
{
pcmk__set_result(result, CRM_EX_PROTOCOL, PCMK_EXEC_INVALID,
"Fencer API request missing required information (bug?)");
}
/*!
* \internal
* \brief Check whether the fencer's device table contains a watchdog device
*
* \retval \c true If the device table contains a watchdog device
* \retval \c false Otherwise
*/
bool
fenced_has_watchdog_device(void)
{
return (device_table != NULL)
&& (g_hash_table_lookup(device_table, STONITH_WATCHDOG_ID) != NULL);
}
/*!
* \internal
* \brief Call a function for each known fence device
*
* \param[in] fn Function to call for each device
* \param[in,out] user_data User data
*/
void
fenced_foreach_device(GHFunc fn, gpointer user_data)
{
if (device_table != NULL) {
g_hash_table_foreach(device_table, fn, user_data);
}
}
/*!
* \internal
* \brief Remove each known fence device matching a given predicate
*
* \param[in] fn Function that returns \c TRUE to remove a fence device or
* \c FALSE to keep it
*/
void
fenced_foreach_device_remove(GHRFunc fn)
{
if (device_table != NULL) {
g_hash_table_foreach_remove(device_table, fn, NULL);
}
}
static gboolean
is_action_required(const char *action, const fenced_device_t *device)
{
return (device != NULL)
&& pcmk_is_set(device->flags, fenced_df_auto_unfence)
&& pcmk__str_eq(action, PCMK_ACTION_ON, pcmk__str_none);
}
static int
get_action_delay_max(const fenced_device_t *device, const char *action)
{
const char *value = NULL;
guint delay_max = 0U;
if (!pcmk__is_fencing_action(action)) {
return 0;
}
value = g_hash_table_lookup(device->params, PCMK_FENCING_DELAY_MAX);
if (value) {
pcmk_parse_interval_spec(value, &delay_max);
delay_max /= 1000;
}
return (int) delay_max;
}
static int
get_action_delay_base(const fenced_device_t *device, const char *action,
const char *target)
{
char *hash_value = NULL;
guint delay_base = 0U;
if (!pcmk__is_fencing_action(action)) {
return 0;
}
hash_value = g_hash_table_lookup(device->params, PCMK_FENCING_DELAY_BASE);
if (hash_value) {
char *value = pcmk__str_copy(hash_value);
char *valptr = value;
if (target != NULL) {
for (char *val = strtok(value, "; \t"); val != NULL; val = strtok(NULL, "; \t")) {
char *mapval = strchr(val, ':');
if (mapval == NULL || mapval[1] == 0) {
crm_err("pcmk_delay_base: empty value in mapping", val);
continue;
}
if (mapval != val && strncasecmp(target, val, (size_t)(mapval - val)) == 0) {
value = mapval + 1;
crm_debug("pcmk_delay_base mapped to %s for %s",
value, target);
break;
}
}
}
if (strchr(value, ':') == 0) {
pcmk_parse_interval_spec(value, &delay_base);
delay_base /= 1000;
}
free(valptr);
}
return (int) delay_base;
}
/*!
* \internal
* \brief Override STONITH timeout with pcmk_*_timeout if available
*
* \param[in] device STONITH device to use
* \param[in] action STONITH action name
* \param[in] default_timeout Timeout to use if device does not have
* a pcmk_*_timeout parameter for action
*
* \return Value of pcmk_(action)_timeout if available, otherwise default_timeout
* \note For consistency, it would be nice if reboot/off/on timeouts could be
* set the same way as start/stop/monitor timeouts, i.e. with an
* <operation> entry in the fencing resource configuration. However that
* is insufficient because fencing devices may be registered directly via
* the fencer's register_device() API instead of going through the CIB
* (e.g. stonith_admin uses it for its -R option, and the executor uses it
* to ensure a device is registered when a command is issued). As device
* properties, pcmk_*_timeout parameters can be grabbed by the fencer when
* the device is registered, whether by CIB change or API call.
*/
static int
get_action_timeout(const fenced_device_t *device, const char *action,
int default_timeout)
{
if (action && device && device->params) {
char *timeout_param = NULL;
const char *value = NULL;
/* If "reboot" was requested but the device does not support it,
* we will remap to "off", so check timeout for "off" instead
*/
if (pcmk__str_eq(action, PCMK_ACTION_REBOOT, pcmk__str_none)
&& !pcmk_is_set(device->flags, fenced_df_supports_reboot)) {
crm_trace("%s doesn't support reboot, using timeout for off instead",
device->id);
action = PCMK_ACTION_OFF;
}
/* If the device config specified an action-specific timeout, use it */
timeout_param = crm_strdup_printf("pcmk_%s_timeout", action);
value = g_hash_table_lookup(device->params, timeout_param);
free(timeout_param);
if (value) {
long long timeout_ms = 0;
if ((pcmk__parse_ms(value, &timeout_ms) == pcmk_rc_ok)
&& (timeout_ms >= 0)) {
int timeout_sec = 0;
timeout_ms = QB_MIN(timeout_ms, UINT_MAX);
timeout_sec = pcmk__timeout_ms2s((guint) timeout_ms);
return QB_MIN(timeout_sec, INT_MAX);
}
}
}
return default_timeout;
}
/*!
* \internal
* \brief Get the currently executing device for a fencing operation
*
* \param[in] cmd Fencing operation to check
*
* \return Currently executing device for \p cmd if any, otherwise NULL
*/
static fenced_device_t *
cmd_device(const async_command_t *cmd)
{
if ((cmd == NULL) || (cmd->device == NULL) || (device_table == NULL)) {
return NULL;
}
return g_hash_table_lookup(device_table, cmd->device);
}
/*!
* \internal
* \brief Return the configured reboot action for a given device
*
* \param[in] device_id Device ID
*
* \return Configured reboot action for \p device_id
*/
const char *
fenced_device_reboot_action(const char *device_id)
{
const char *action = NULL;
if ((device_table != NULL) && (device_id != NULL)) {
fenced_device_t *device = g_hash_table_lookup(device_table, device_id);
if ((device != NULL) && (device->params != NULL)) {
action = g_hash_table_lookup(device->params, "pcmk_reboot_action");
}
}
return pcmk__s(action, PCMK_ACTION_REBOOT);
}
/*!
* \internal
* \brief Check whether a given device supports the "on" action
*
* \param[in] device_id Device ID
*
* \return true if \p device_id supports "on", otherwise false
*/
bool
fenced_device_supports_on(const char *device_id)
{
if ((device_table != NULL) && (device_id != NULL)) {
fenced_device_t *device = g_hash_table_lookup(device_table, device_id);
if (device != NULL) {
return pcmk_is_set(device->flags, fenced_df_supports_on);
}
}
return false;
}
static void
free_async_command(async_command_t * cmd)
{
if (!cmd) {
return;
}
if (cmd->delay_id) {
g_source_remove(cmd->delay_id);
}
cmd_list = g_list_remove(cmd_list, cmd);
g_list_free_full(cmd->device_list, free);
free(cmd->device);
free(cmd->action);
free(cmd->target);
free(cmd->remote_op_id);
free(cmd->client);
free(cmd->client_name);
free(cmd->origin);
free(cmd->op);
free(cmd);
}
/*!
* \internal
* \brief Create a new asynchronous fencing operation from request XML
*
* \param[in] msg Fencing request XML (from IPC or CPG)
*
* \return Newly allocated fencing operation on success, otherwise NULL
*
* \note This asserts on memory errors, so a NULL return indicates an
* unparseable message.
*/
static async_command_t *
create_async_command(xmlNode *msg)
{
xmlNode *op = NULL;
async_command_t *cmd = NULL;
int rc = pcmk_rc_ok;
if (msg == NULL) {
return NULL;
}
op = pcmk__xpath_find_one(msg->doc, "//*[@" PCMK__XA_ST_DEVICE_ACTION "]",
LOG_ERR);
if (op == NULL) {
return NULL;
}
cmd = pcmk__assert_alloc(1, sizeof(async_command_t));
// All messages must include these
cmd->action = pcmk__xe_get_copy(op, PCMK__XA_ST_DEVICE_ACTION);
cmd->op = pcmk__xe_get_copy(msg, PCMK__XA_ST_OP);
cmd->client = pcmk__xe_get_copy(msg, PCMK__XA_ST_CLIENTID);
if ((cmd->action == NULL) || (cmd->op == NULL) || (cmd->client == NULL)) {
free_async_command(cmd);
return NULL;
}
pcmk__xe_get_int(msg, PCMK__XA_ST_CALLID, &(cmd->id));
pcmk__xe_get_int(msg, PCMK__XA_ST_DELAY, &(cmd->start_delay));
pcmk__xe_get_int(msg, PCMK__XA_ST_TIMEOUT, &(cmd->default_timeout));
cmd->timeout = cmd->default_timeout;
rc = pcmk__xe_get_flags(msg, PCMK__XA_ST_CALLOPT, &(cmd->options),
st_opt_none);
if (rc != pcmk_rc_ok) {
crm_warn("Couldn't parse options from request: %s", pcmk_rc_str(rc));
}
cmd->origin = pcmk__xe_get_copy(msg, PCMK__XA_SRC);
cmd->remote_op_id = pcmk__xe_get_copy(msg, PCMK__XA_ST_REMOTE_OP);
cmd->client_name = pcmk__xe_get_copy(msg, PCMK__XA_ST_CLIENTNAME);
cmd->target = pcmk__xe_get_copy(op, PCMK__XA_ST_TARGET);
cmd->device = pcmk__xe_get_copy(op, PCMK__XA_ST_DEVICE_ID);
cmd->done_cb = st_child_done;
// Track in global command list
cmd_list = g_list_append(cmd_list, cmd);
return cmd;
}
static int
get_action_limit(fenced_device_t *device)
{
const char *value = NULL;
int action_limit = 1;
value = g_hash_table_lookup(device->params, PCMK_FENCING_ACTION_LIMIT);
if ((value == NULL)
|| (pcmk__scan_min_int(value, &action_limit, INT_MIN) != pcmk_rc_ok)
|| (action_limit == 0)) {
action_limit = 1;
}
return action_limit;
}
static int
get_active_cmds(fenced_device_t *device)
{
int counter = 0;
GList *gIter = NULL;
GList *gIterNext = NULL;
CRM_CHECK(device != NULL, return 0);
for (gIter = cmd_list; gIter != NULL; gIter = gIterNext) {
async_command_t *cmd = gIter->data;
gIterNext = gIter->next;
if (cmd->active_on == device) {
counter++;
}
}
return counter;
}
static void
fork_cb(int pid, void *user_data)
{
async_command_t *cmd = (async_command_t *) user_data;
fenced_device_t *device = cmd->activating_on;
if (device == NULL) {
/* In case of a retry, we've done the move from activating_on to
* active_on already
*/
device = cmd->active_on;
}
pcmk__assert(device != NULL);
crm_debug("Operation '%s' [%d]%s%s using %s now running with %ds timeout",
cmd->action, pid,
((cmd->target == NULL)? "" : " targeting "),
pcmk__s(cmd->target, ""), device->id, cmd->timeout);
cmd->active_on = device;
cmd->activating_on = NULL;
}
static int
get_agent_metadata_cb(gpointer data) {
fenced_device_t *device = data;
guint period_ms;
switch (get_agent_metadata(device->agent, &device->agent_metadata)) {
case pcmk_rc_ok:
if (device->agent_metadata) {
read_action_metadata(device);
device->default_host_arg =
stonith__default_host_arg(device->agent_metadata);
}
return G_SOURCE_REMOVE;
case EAGAIN:
period_ms = pcmk__mainloop_timer_get_period(device->timer);
if (period_ms < 160 * 1000) {
mainloop_timer_set_period(device->timer, 2 * period_ms);
}
return G_SOURCE_CONTINUE;
default:
return G_SOURCE_REMOVE;
}
}
/*!
* \internal
* \brief Call a command's action callback for an internal (not library) result
*
* \param[in,out] cmd Command to report result for
* \param[in] execution_status Execution status to use for result
* \param[in] exit_status Exit status to use for result
* \param[in] exit_reason Exit reason to use for result
*/
static void
report_internal_result(async_command_t *cmd, int exit_status,
int execution_status, const char *exit_reason)
{
pcmk__action_result_t result = PCMK__UNKNOWN_RESULT;
pcmk__set_result(&result, exit_status, execution_status, exit_reason);
cmd->done_cb(0, &result, cmd);
pcmk__reset_result(&result);
}
static gboolean
stonith_device_execute(fenced_device_t *device)
{
int exec_rc = 0;
const char *action_str = NULL;
async_command_t *cmd = NULL;
stonith_action_t *action = NULL;
int active_cmds = 0;
int action_limit = 0;
GList *gIter = NULL;
GList *gIterNext = NULL;
CRM_CHECK(device != NULL, return FALSE);
active_cmds = get_active_cmds(device);
action_limit = get_action_limit(device);
if (action_limit > -1 && active_cmds >= action_limit) {
crm_trace("%s is over its action limit of %d (%u active action%s)",
device->id, action_limit, active_cmds,
pcmk__plural_s(active_cmds));
return TRUE;
}
for (gIter = device->pending_ops; gIter != NULL; gIter = gIterNext) {
async_command_t *pending_op = gIter->data;
gIterNext = gIter->next;
if (pending_op && pending_op->delay_id) {
crm_trace("Operation '%s'%s%s using %s was asked to run too early, "
"waiting for start delay of %ds",
pending_op->action,
((pending_op->target == NULL)? "" : " targeting "),
pcmk__s(pending_op->target, ""),
device->id, pending_op->start_delay);
continue;
}
device->pending_ops = g_list_remove_link(device->pending_ops, gIter);
g_list_free_1(gIter);
cmd = pending_op;
break;
}
if (cmd == NULL) {
crm_trace("No actions using %s are needed", device->id);
return TRUE;
}
if (pcmk__str_any_of(device->agent, STONITH_WATCHDOG_AGENT,
STONITH_WATCHDOG_AGENT_INTERNAL, NULL)) {
if (pcmk__is_fencing_action(cmd->action)) {
if (node_does_watchdog_fencing(fenced_get_local_node())) {
pcmk__panic("Watchdog self-fencing required");
goto done;
}
} else {
crm_info("Faking success for %s watchdog operation", cmd->action);
report_internal_result(cmd, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
goto done;
}
}
#if PCMK__ENABLE_CIBSECRETS
exec_rc = pcmk__substitute_secrets(device->id, device->params);
if (exec_rc != pcmk_rc_ok) {
if (pcmk__str_eq(cmd->action, PCMK_ACTION_STOP, pcmk__str_none)) {
crm_info("Proceeding with stop operation for %s "
"despite being unable to load CIB secrets (%s)",
device->id, pcmk_rc_str(exec_rc));
} else {
crm_err("Considering %s unconfigured "
"because unable to load CIB secrets: %s",
device->id, pcmk_rc_str(exec_rc));
report_internal_result(cmd, CRM_EX_ERROR, PCMK_EXEC_NO_SECRETS,
"Failed to get CIB secrets");
goto done;
}
}
#endif
action_str = cmd->action;
if (pcmk__str_eq(cmd->action, PCMK_ACTION_REBOOT, pcmk__str_none)
&& !pcmk_is_set(device->flags, fenced_df_supports_reboot)) {
crm_notice("Remapping 'reboot' action%s%s using %s to 'off' "
"because agent '%s' does not support reboot",
((cmd->target == NULL)? "" : " targeting "),
pcmk__s(cmd->target, ""), device->id, device->agent);
action_str = PCMK_ACTION_OFF;
}
action = stonith__action_create(device->agent, action_str, cmd->target,
cmd->timeout, device->params,
device->aliases, device->default_host_arg);
/* for async exec, exec_rc is negative for early error exit
otherwise handling of success/errors is done via callbacks */
cmd->activating_on = device;
exec_rc = stonith__execute_async(action, (void *)cmd, cmd->done_cb,
fork_cb);
if (exec_rc < 0) {
cmd->activating_on = NULL;
cmd->done_cb(0, stonith__action_result(action), cmd);
stonith__destroy_action(action);
}
done:
/* Device might get triggered to work by multiple fencing commands
* simultaneously. Trigger the device again to make sure any
* remaining concurrent commands get executed. */
if (device->pending_ops) {
mainloop_set_trigger(device->work);
}
return TRUE;
}
static gboolean
stonith_device_dispatch(gpointer user_data)
{
return stonith_device_execute(user_data);
}
static gboolean
start_delay_helper(gpointer data)
{
async_command_t *cmd = data;
fenced_device_t *device = cmd_device(cmd);
cmd->delay_id = 0;
if (device) {
mainloop_set_trigger(device->work);
}
return FALSE;
}
static void
schedule_stonith_command(async_command_t *cmd, fenced_device_t *device)
{
int delay_max = 0;
int delay_base = 0;
int requested_delay = cmd->start_delay;
CRM_CHECK(cmd != NULL, return);
CRM_CHECK(device != NULL, return);
if (cmd->device) {
free(cmd->device);
}
cmd->device = pcmk__str_copy(device->id);
cmd->timeout = get_action_timeout(device, cmd->action, cmd->default_timeout);
if (cmd->remote_op_id) {
crm_debug("Scheduling '%s' action%s%s using %s for remote peer %s "
"with op id %.8s and timeout %ds",
cmd->action,
(cmd->target == NULL)? "" : " targeting ",
pcmk__s(cmd->target, ""),
device->id, cmd->origin, cmd->remote_op_id, cmd->timeout);
} else {
crm_debug("Scheduling '%s' action%s%s using %s for %s with timeout %ds",
cmd->action,
(cmd->target == NULL)? "" : " targeting ",
pcmk__s(cmd->target, ""),
device->id, cmd->client, cmd->timeout);
}
device->pending_ops = g_list_append(device->pending_ops, cmd);
mainloop_set_trigger(device->work);
// Value -1 means disable any static/random fencing delays
if (requested_delay < 0) {
return;
}
delay_max = get_action_delay_max(device, cmd->action);
delay_base = get_action_delay_base(device, cmd->action, cmd->target);
if (delay_max == 0) {
delay_max = delay_base;
}
if (delay_max < delay_base) {
crm_warn(PCMK_FENCING_DELAY_BASE " (%ds) is larger than "
PCMK_FENCING_DELAY_MAX " (%ds) for %s using %s "
"(limiting to maximum delay)",
delay_base, delay_max, cmd->action, device->id);
delay_base = delay_max;
}
if (delay_max > 0) {
cmd->start_delay += delay_base;
// Add random offset so that delay_base <= cmd->start_delay <= delay_max
if (delay_max > delay_base) {
// coverity[dont_call] Doesn't matter that rand() is predictable
cmd->start_delay += rand() % (delay_max - delay_base + 1);
}
}
if (cmd->start_delay > 0) {
crm_notice("Delaying '%s' action%s%s using %s for %ds " QB_XS
" timeout=%ds requested_delay=%ds base=%ds max=%ds",
cmd->action,
(cmd->target == NULL)? "" : " targeting ",
pcmk__s(cmd->target, ""),
device->id, cmd->start_delay, cmd->timeout,
requested_delay, delay_base, delay_max);
cmd->delay_id =
pcmk__create_timer(cmd->start_delay * 1000, start_delay_helper, cmd);
}
}
static void
free_device(gpointer data)
{
GList *gIter = NULL;
fenced_device_t *device = data;
g_hash_table_destroy(device->params);
g_hash_table_destroy(device->aliases);
for (gIter = device->pending_ops; gIter != NULL; gIter = gIter->next) {
async_command_t *cmd = gIter->data;
crm_warn("Removal of device '%s' purged operation '%s'", device->id, cmd->action);
report_internal_result(cmd, CRM_EX_ERROR, PCMK_EXEC_NO_FENCE_DEVICE,
"Device was removed before action could be executed");
}
g_list_free(device->pending_ops);
g_list_free_full(device->targets, free);
if (device->timer) {
mainloop_timer_stop(device->timer);
mainloop_timer_del(device->timer);
}
mainloop_destroy_trigger(device->work);
pcmk__xml_free(device->agent_metadata);
free(device->namespace);
if (device->on_target_actions != NULL) {
g_string_free(device->on_target_actions, TRUE);
}
free(device->agent);
free(device->id);
free(device);
}
/*!
* \internal
* \brief Initialize the table of known fence devices
*/
void
fenced_init_device_table(void)
{
if (device_table == NULL) {
device_table = pcmk__strkey_table(NULL, free_device);
}
}
/*!
* \internal
* \brief Free the table of known fence devices
*/
void
fenced_free_device_table(void)
{
if (device_table != NULL) {
g_hash_table_destroy(device_table);
device_table = NULL;
}
}
static GHashTable *
build_port_aliases(const char *hostmap, GList ** targets)
{
char *name = NULL;
int last = 0, lpc = 0, max = 0, added = 0;
GHashTable *aliases = pcmk__strikey_table(free, free);
if (hostmap == NULL) {
return aliases;
}
max = strlen(hostmap);
for (; lpc <= max; lpc++) {
switch (hostmap[lpc]) {
/* Skip escaped chars */
case '\\':
lpc++;
break;
/* Assignment chars */
case '=':
case ':':
if (lpc > last) {
free(name);
name = pcmk__assert_alloc(1, 1 + lpc - last);
memcpy(name, hostmap + last, lpc - last);
}
last = lpc + 1;
break;
/* Delimeter chars */
/* case ',': Potentially used to specify multiple ports */
case 0:
case ';':
case ' ':
case '\t':
if (name) {
char *value = NULL;
int k = 0;
value = pcmk__assert_alloc(1, 1 + lpc - last);
memcpy(value, hostmap + last, lpc - last);
for (int i = 0; value[i] != '\0'; i++) {
if (value[i] != '\\') {
value[k++] = value[i];
}
}
value[k] = '\0';
crm_debug("Adding alias '%s'='%s'", name, value);
g_hash_table_replace(aliases, name, value);
if (targets) {
*targets = g_list_append(*targets, pcmk__str_copy(value));
}
value = NULL;
name = NULL;
added++;
} else if (lpc > last) {
crm_debug("Parse error at offset %d near '%s'", lpc - last, hostmap + last);
}
last = lpc + 1;
break;
}
if (hostmap[lpc] == 0) {
break;
}
}
if (added == 0) {
crm_info("No host mappings detected in '%s'", hostmap);
}
free(name);
return aliases;
}
GHashTable *metadata_cache = NULL;
void
free_metadata_cache(void) {
if (metadata_cache != NULL) {
g_hash_table_destroy(metadata_cache);
metadata_cache = NULL;
}
}
static void
init_metadata_cache(void) {
if (metadata_cache == NULL) {
metadata_cache = pcmk__strkey_table(free, free);
}
}
int
get_agent_metadata(const char *agent, xmlNode ** metadata)
{
char *buffer = NULL;
if (metadata == NULL) {
return EINVAL;
}
*metadata = NULL;
if (pcmk__str_eq(agent, STONITH_WATCHDOG_AGENT_INTERNAL, pcmk__str_none)) {
return pcmk_rc_ok;
}
init_metadata_cache();
buffer = g_hash_table_lookup(metadata_cache, agent);
if (buffer == NULL) {
stonith_t *st = stonith__api_new();
int rc;
if (st == NULL) {
crm_warn("Could not get agent meta-data: "
"API memory allocation failed");
return EAGAIN;
}
rc = st->cmds->metadata(st, st_opt_sync_call, agent,
NULL, &buffer, 10);
stonith__api_free(st);
if (rc || !buffer) {
crm_err("Could not retrieve metadata for fencing agent %s", agent);
return EAGAIN;
}
g_hash_table_replace(metadata_cache, pcmk__str_copy(agent), buffer);
}
*metadata = pcmk__xml_parse(buffer);
return pcmk_rc_ok;
}
static void
read_action_metadata(fenced_device_t *device)
{
xmlXPathObject *xpath = NULL;
int max = 0;
int lpc = 0;
if (device->agent_metadata == NULL) {
return;
}
xpath = pcmk__xpath_search(device->agent_metadata->doc,
"//" PCMK_XE_ACTION);
max = pcmk__xpath_num_results(xpath);
if (max == 0) {
xmlXPathFreeObject(xpath);
return;
}
for (lpc = 0; lpc < max; lpc++) {
const char *action = NULL;
xmlNode *match = pcmk__xpath_result(xpath, lpc);
CRM_LOG_ASSERT(match != NULL);
if(match == NULL) { continue; };
action = pcmk__xe_get(match, PCMK_XA_NAME);
if (pcmk__str_eq(action, PCMK_ACTION_LIST, pcmk__str_none)) {
fenced_device_set_flags(device, fenced_df_supports_list);
} else if (pcmk__str_eq(action, PCMK_ACTION_STATUS, pcmk__str_none)) {
fenced_device_set_flags(device, fenced_df_supports_status);
} else if (pcmk__str_eq(action, PCMK_ACTION_REBOOT, pcmk__str_none)) {
fenced_device_set_flags(device, fenced_df_supports_reboot);
} else if (pcmk__str_eq(action, PCMK_ACTION_ON, pcmk__str_none)) {
/* PCMK_XA_AUTOMATIC means the cluster will unfence a node when it
* joins.
*
* @COMPAT PCMK__XA_REQUIRED is a deprecated synonym for
* PCMK_XA_AUTOMATIC.
*/
if (pcmk__xe_attr_is_true(match, PCMK_XA_AUTOMATIC)
|| pcmk__xe_attr_is_true(match, PCMK__XA_REQUIRED)) {
fenced_device_set_flags(device, fenced_df_auto_unfence);
}
fenced_device_set_flags(device, fenced_df_supports_on);
}
if ((action != NULL)
&& pcmk__xe_attr_is_true(match, PCMK_XA_ON_TARGET)) {
pcmk__add_word(&(device->on_target_actions), 64, action);
}
}
xmlXPathFreeObject(xpath);
}
static const char *
target_list_type(fenced_device_t *dev)
{
const char *check_type = NULL;
check_type = g_hash_table_lookup(dev->params, PCMK_FENCING_HOST_CHECK);
if (check_type == NULL) {
if (g_hash_table_lookup(dev->params, PCMK_FENCING_HOST_LIST)) {
check_type = PCMK_VALUE_STATIC_LIST;
- } else if (g_hash_table_lookup(dev->params, PCMK_STONITH_HOST_MAP)) {
+ } else if (g_hash_table_lookup(dev->params, PCMK_FENCING_HOST_MAP)) {
check_type = PCMK_VALUE_STATIC_LIST;
} else if (pcmk_is_set(dev->flags, fenced_df_supports_list)) {
check_type = PCMK_VALUE_DYNAMIC_LIST;
} else if (pcmk_is_set(dev->flags, fenced_df_supports_status)) {
check_type = PCMK_VALUE_STATUS;
} else {
check_type = PCMK_VALUE_NONE;
}
}
return check_type;
}
static fenced_device_t *
build_device_from_xml(const xmlNode *dev)
{
const char *value;
fenced_device_t *device = NULL;
char *agent = pcmk__xe_get_copy(dev, PCMK_XA_AGENT);
CRM_CHECK(agent != NULL, return device);
device = pcmk__assert_alloc(1, sizeof(fenced_device_t));
device->id = pcmk__xe_get_copy(dev, PCMK_XA_ID);
device->agent = agent;
device->namespace = pcmk__xe_get_copy(dev, PCMK__XA_NAMESPACE);
device->params = xml2list(dev);
value = g_hash_table_lookup(device->params, PCMK_FENCING_HOST_LIST);
if (value) {
device->targets = stonith__parse_targets(value);
}
- value = g_hash_table_lookup(device->params, PCMK_STONITH_HOST_MAP);
+ value = g_hash_table_lookup(device->params, PCMK_FENCING_HOST_MAP);
device->aliases = build_port_aliases(value, &(device->targets));
value = target_list_type(device);
if (!pcmk__str_eq(value, PCMK_VALUE_STATIC_LIST, pcmk__str_casei)
&& (device->targets != NULL)) {
// device->targets is necessary only with PCMK_VALUE_STATIC_LIST
g_list_free_full(device->targets, free);
device->targets = NULL;
}
switch (get_agent_metadata(device->agent, &device->agent_metadata)) {
case pcmk_rc_ok:
if (device->agent_metadata) {
read_action_metadata(device);
device->default_host_arg =
stonith__default_host_arg(device->agent_metadata);
}
break;
case EAGAIN:
if (device->timer == NULL) {
device->timer = mainloop_timer_add("get_agent_metadata", 10 * 1000,
TRUE, get_agent_metadata_cb, device);
}
if (!mainloop_timer_running(device->timer)) {
mainloop_timer_start(device->timer);
}
break;
default:
break;
}
value = pcmk__xe_get(dev, PCMK__XA_RSC_PROVIDES);
if (pcmk__str_eq(value, PCMK_VALUE_UNFENCING, pcmk__str_casei)) {
fenced_device_set_flags(device, fenced_df_auto_unfence);
}
if (is_action_required(PCMK_ACTION_ON, device)) {
crm_info("Fencing device '%s' requires unfencing", device->id);
}
if (device->on_target_actions != NULL) {
crm_info("Fencing device '%s' requires actions (%s) to be executed "
"on target", device->id,
(const char *) device->on_target_actions->str);
}
device->work = mainloop_add_trigger(G_PRIORITY_HIGH, stonith_device_dispatch, device);
return device;
}
static void
schedule_internal_command(const char *origin, fenced_device_t *device,
const char *action, const char *target, int timeout,
void *internal_user_data,
void (*done_cb) (int pid,
const pcmk__action_result_t *result,
void *user_data))
{
async_command_t *cmd = NULL;
cmd = pcmk__assert_alloc(1, sizeof(async_command_t));
cmd->id = -1;
cmd->default_timeout = timeout ? timeout : 60;
cmd->timeout = cmd->default_timeout;
cmd->action = pcmk__str_copy(action);
cmd->target = pcmk__str_copy(target);
cmd->device = pcmk__str_copy(device->id);
cmd->origin = pcmk__str_copy(origin);
cmd->client = pcmk__str_copy(crm_system_name);
cmd->client_name = pcmk__str_copy(crm_system_name);
cmd->internal_user_data = internal_user_data;
cmd->done_cb = done_cb; /* cmd, not internal_user_data, is passed to 'done_cb' as the userdata */
schedule_stonith_command(cmd, device);
}
// Fence agent status commands use custom exit status codes
enum fence_status_code {
fence_status_invalid = -1,
fence_status_active = 0,
fence_status_unknown = 1,
fence_status_inactive = 2,
};
static void
status_search_cb(int pid, const pcmk__action_result_t *result, void *user_data)
{
async_command_t *cmd = user_data;
struct device_search_s *search = cmd->internal_user_data;
fenced_device_t *dev = cmd_device(cmd);
gboolean can = FALSE;
free_async_command(cmd);
if (!dev) {
search_devices_record_result(search, NULL, FALSE);
return;
}
mainloop_set_trigger(dev->work);
if (result->execution_status != PCMK_EXEC_DONE) {
crm_warn("Assuming %s cannot fence %s "
"because status could not be executed: %s%s%s%s",
dev->id, search->host,
pcmk_exec_status_str(result->execution_status),
((result->exit_reason == NULL)? "" : " ("),
((result->exit_reason == NULL)? "" : result->exit_reason),
((result->exit_reason == NULL)? "" : ")"));
search_devices_record_result(search, dev->id, FALSE);
return;
}
switch (result->exit_status) {
case fence_status_unknown:
crm_trace("%s reported it cannot fence %s", dev->id, search->host);
break;
case fence_status_active:
case fence_status_inactive:
crm_trace("%s reported it can fence %s", dev->id, search->host);
can = TRUE;
break;
default:
crm_warn("Assuming %s cannot fence %s "
"(status returned unknown code %d)",
dev->id, search->host, result->exit_status);
break;
}
search_devices_record_result(search, dev->id, can);
}
static void
dynamic_list_search_cb(int pid, const pcmk__action_result_t *result,
void *user_data)
{
async_command_t *cmd = user_data;
struct device_search_s *search = cmd->internal_user_data;
fenced_device_t *dev = cmd_device(cmd);
gboolean can_fence = FALSE;
free_async_command(cmd);
/* Host/alias must be in the list output to be eligible to be fenced
*
* Will cause problems if down'd nodes aren't listed or (for virtual nodes)
* if the guest is still listed despite being moved to another machine
*/
if (!dev) {
search_devices_record_result(search, NULL, FALSE);
return;
}
mainloop_set_trigger(dev->work);
if (pcmk__result_ok(result)) {
crm_info("Refreshing target list for %s", dev->id);
g_list_free_full(dev->targets, free);
dev->targets = stonith__parse_targets(result->action_stdout);
dev->targets_age = time(NULL);
} else if (dev->targets != NULL) {
if (result->execution_status == PCMK_EXEC_DONE) {
crm_info("Reusing most recent target list for %s "
"because list returned error code %d",
dev->id, result->exit_status);
} else {
crm_info("Reusing most recent target list for %s "
"because list could not be executed: %s%s%s%s",
dev->id, pcmk_exec_status_str(result->execution_status),
((result->exit_reason == NULL)? "" : " ("),
((result->exit_reason == NULL)? "" : result->exit_reason),
((result->exit_reason == NULL)? "" : ")"));
}
} else { // We have never successfully executed list
if (result->execution_status == PCMK_EXEC_DONE) {
crm_warn("Assuming %s cannot fence %s "
"because list returned error code %d",
dev->id, search->host, result->exit_status);
} else {
crm_warn("Assuming %s cannot fence %s "
"because list could not be executed: %s%s%s%s",
dev->id, search->host,
pcmk_exec_status_str(result->execution_status),
((result->exit_reason == NULL)? "" : " ("),
((result->exit_reason == NULL)? "" : result->exit_reason),
((result->exit_reason == NULL)? "" : ")"));
}
/* Fall back to pcmk_host_check=PCMK_VALUE_STATUS if the user didn't
* explicitly specify PCMK_VALUE_DYNAMIC_LIST
*/
if (g_hash_table_lookup(dev->params, PCMK_FENCING_HOST_CHECK) == NULL) {
crm_notice("Switching to pcmk_host_check='status' for %s", dev->id);
pcmk__insert_dup(dev->params, PCMK_FENCING_HOST_CHECK,
PCMK_VALUE_STATUS);
}
}
if (dev->targets) {
const char *alias = g_hash_table_lookup(dev->aliases, search->host);
if (!alias) {
alias = search->host;
}
if (pcmk__str_in_list(alias, dev->targets, pcmk__str_casei)) {
can_fence = TRUE;
}
}
search_devices_record_result(search, dev->id, can_fence);
}
/*!
* \internal
* \brief Returns true if any key in first is not in second or second has a different value for key
*/
static int
device_params_diff(GHashTable *first, GHashTable *second) {
char *key = NULL;
char *value = NULL;
GHashTableIter gIter;
g_hash_table_iter_init(&gIter, first);
while (g_hash_table_iter_next(&gIter, (void **)&key, (void **)&value)) {
if(strstr(key, "CRM_meta") == key) {
continue;
} else if (strcmp(key, PCMK_XA_CRM_FEATURE_SET) == 0) {
continue;
} else {
char *other_value = g_hash_table_lookup(second, key);
if (!other_value || !pcmk__str_eq(other_value, value, pcmk__str_casei)) {
crm_trace("Different value for %s: %s != %s", key, other_value, value);
return 1;
}
}
}
return 0;
}
/*!
* \internal
* \brief Checks to see if an identical device already exists in the table
*/
static fenced_device_t *
device_has_duplicate(const fenced_device_t *device)
{
fenced_device_t *dup = g_hash_table_lookup(device_table, device->id);
if (!dup) {
crm_trace("No match for %s", device->id);
return NULL;
} else if (!pcmk__str_eq(dup->agent, device->agent, pcmk__str_casei)) {
crm_trace("Different agent: %s != %s", dup->agent, device->agent);
return NULL;
}
// Find a way to share logic with pcmk__digest_op_params() here?
if (device_params_diff(device->params, dup->params) ||
device_params_diff(dup->params, device->params)) {
return NULL;
}
crm_trace("Match");
return dup;
}
int
fenced_device_register(const xmlNode *dev, bool from_cib)
{
const char *local_node_name = fenced_get_local_node();
fenced_device_t *dup = NULL;
fenced_device_t *device = build_device_from_xml(dev);
int rc = pcmk_rc_ok;
CRM_CHECK(device != NULL, return ENOMEM);
/* do we have a watchdog-device? */
if (pcmk__str_eq(device->id, STONITH_WATCHDOG_ID, pcmk__str_none)
|| pcmk__str_any_of(device->agent, STONITH_WATCHDOG_AGENT,
STONITH_WATCHDOG_AGENT_INTERNAL, NULL)) {
if (fencing_watchdog_timeout_ms <= 0) {
crm_err("Ignoring watchdog fence device without "
PCMK_OPT_FENCING_WATCHDOG_TIMEOUT " set");
rc = ENODEV;
goto done;
}
if (!pcmk__str_any_of(device->agent, STONITH_WATCHDOG_AGENT,
STONITH_WATCHDOG_AGENT_INTERNAL, NULL)) {
crm_err("Ignoring watchdog fence device with unknown agent '%s' "
"rather than '" STONITH_WATCHDOG_AGENT "'",
pcmk__s(device->agent, ""));
rc = ENODEV;
goto done;
}
if (!pcmk__str_eq(device->id, STONITH_WATCHDOG_ID, pcmk__str_none)) {
crm_err("Ignoring watchdog fence device named '%s' rather than "
"'" STONITH_WATCHDOG_ID "'",
pcmk__s(device->id, ""));
rc = ENODEV;
goto done;
}
if (pcmk__str_eq(device->agent, STONITH_WATCHDOG_AGENT,
pcmk__str_none)) {
/* This has either an empty list or the targets configured for
* watchdog fencing
*/
g_list_free_full(stonith_watchdog_targets, free);
stonith_watchdog_targets = device->targets;
device->targets = NULL;
}
if (!node_does_watchdog_fencing(local_node_name)) {
crm_debug("Skip registration of watchdog fence device on node not "
"in host list");
device->targets = NULL;
stonith_device_remove(device->id, from_cib);
goto done;
}
// Proceed as with any other fencing device
g_list_free_full(device->targets, free);
device->targets = stonith__parse_targets(local_node_name);
pcmk__insert_dup(device->params, PCMK_FENCING_HOST_LIST,
local_node_name);
}
dup = device_has_duplicate(device);
if (dup != NULL) {
guint ndevices = g_hash_table_size(device_table);
crm_debug("Device '%s' already in device list (%d active device%s)",
device->id, ndevices, pcmk__plural_s(ndevices));
free_device(device);
device = dup;
fenced_device_clear_flags(device, fenced_df_dirty);
} else {
guint ndevices = 0;
fenced_device_t *old = g_hash_table_lookup(device_table, device->id);
if (from_cib && (old != NULL)
&& pcmk_is_set(old->flags, fenced_df_api_registered)) {
/* If the CIB is writing over an entry that is shared with a stonith
* client, copy any pending ops that currently exist on the old
* entry to the new one. Otherwise the pending ops will be reported
* as failures.
*/
crm_info("Overwriting existing entry for %s from CIB", device->id);
device->pending_ops = old->pending_ops;
fenced_device_set_flags(device, fenced_df_api_registered);
old->pending_ops = NULL;
if (device->pending_ops != NULL) {
mainloop_set_trigger(device->work);
}
}
g_hash_table_replace(device_table, device->id, device);
ndevices = g_hash_table_size(device_table);
crm_notice("Added '%s' to device list (%d active device%s)",
device->id, ndevices, pcmk__plural_s(ndevices));
}
if (from_cib) {
fenced_device_set_flags(device, fenced_df_cib_registered);
} else {
fenced_device_set_flags(device, fenced_df_api_registered);
}
done:
if (rc != pcmk_rc_ok) {
free_device(device);
}
return rc;
}
void
stonith_device_remove(const char *id, bool from_cib)
{
fenced_device_t *device = g_hash_table_lookup(device_table, id);
guint ndevices = 0;
if (device == NULL) {
ndevices = g_hash_table_size(device_table);
crm_info("Device '%s' not found (%u active device%s)", id, ndevices,
pcmk__plural_s(ndevices));
return;
}
if (from_cib) {
fenced_device_clear_flags(device, fenced_df_cib_registered);
} else {
fenced_device_clear_flags(device,
fenced_df_api_registered|fenced_df_verified);
}
if (!pcmk_any_flags_set(device->flags,
fenced_df_api_registered
|fenced_df_cib_registered)) {
g_hash_table_remove(device_table, id);
ndevices = g_hash_table_size(device_table);
crm_info("Removed '%s' from device list (%u active device%s)",
id, ndevices, pcmk__plural_s(ndevices));
} else {
// Exactly one is true at this point
const bool cib_registered = pcmk_is_set(device->flags,
fenced_df_cib_registered);
crm_trace("Not removing '%s' from device list (%u active) because "
"still registered via %s",
id, g_hash_table_size(device_table),
(cib_registered? "CIB" : "API"));
}
}
/*!
* \internal
* \brief Return the number of stonith levels registered for a node
*
* \param[in] tp Node's topology table entry
*
* \return Number of non-NULL levels in topology entry
* \note This function is used only for log messages.
*/
static int
count_active_levels(const stonith_topology_t *tp)
{
int lpc = 0;
int count = 0;
for (lpc = 0; lpc < ST__LEVEL_COUNT; lpc++) {
if (tp->levels[lpc] != NULL) {
count++;
}
}
return count;
}
static void
free_topology_entry(gpointer data)
{
stonith_topology_t *tp = data;
int lpc = 0;
for (lpc = 0; lpc < ST__LEVEL_COUNT; lpc++) {
if (tp->levels[lpc] != NULL) {
g_list_free_full(tp->levels[lpc], free);
}
}
free(tp->target);
free(tp->target_value);
free(tp->target_pattern);
free(tp->target_attribute);
free(tp);
}
void
free_topology_list(void)
{
if (topology != NULL) {
g_hash_table_destroy(topology);
topology = NULL;
}
}
void
init_topology_list(void)
{
if (topology == NULL) {
topology = pcmk__strkey_table(NULL, free_topology_entry);
}
}
char *
stonith_level_key(const xmlNode *level, enum fenced_target_by mode)
{
if (mode == fenced_target_by_unknown) {
mode = unpack_level_kind(level);
}
switch (mode) {
case fenced_target_by_name:
return pcmk__xe_get_copy(level, PCMK_XA_TARGET);
case fenced_target_by_pattern:
return pcmk__xe_get_copy(level, PCMK_XA_TARGET_PATTERN);
case fenced_target_by_attribute:
return crm_strdup_printf("%s=%s",
pcmk__xe_get(level,
PCMK_XA_TARGET_ATTRIBUTE),
pcmk__xe_get(level,
PCMK_XA_TARGET_VALUE));
default:
return crm_strdup_printf("unknown-%s", pcmk__xe_id(level));
}
}
/*!
* \internal
* \brief Parse target identification from topology level XML
*
* \param[in] level Topology level XML to parse
*
* \return How to identify target of \p level
*/
static enum fenced_target_by
unpack_level_kind(const xmlNode *level)
{
if (pcmk__xe_get(level, PCMK_XA_TARGET) != NULL) {
return fenced_target_by_name;
}
if (pcmk__xe_get(level, PCMK_XA_TARGET_PATTERN) != NULL) {
return fenced_target_by_pattern;
}
if ((pcmk__xe_get(level, PCMK_XA_TARGET_ATTRIBUTE) != NULL)
&& (pcmk__xe_get(level, PCMK_XA_TARGET_VALUE) != NULL)) {
return fenced_target_by_attribute;
}
return fenced_target_by_unknown;
}
/*!
* \internal
* \brief Unpack essential information from topology request XML
*
* \param[in] xml Request XML to search
* \param[out] mode If not NULL, where to store level kind
* \param[out] target If not NULL, where to store representation of target
* \param[out] id If not NULL, where to store level number
*
* \return Topology level XML from within \p xml, or NULL if not found
* \note The caller is responsible for freeing \p *target if set.
*/
static xmlNode *
unpack_level_request(xmlNode *xml, enum fenced_target_by *mode, char **target,
int *id)
{
enum fenced_target_by local_mode = fenced_target_by_unknown;
char *local_target = NULL;
int local_id = 0;
/* The level element can be the top element or lower. If top level, don't
* search by xpath, because it might give multiple hits if the XML is the
* CIB.
*/
if ((xml != NULL) && !pcmk__xe_is(xml, PCMK_XE_FENCING_LEVEL)) {
xml = pcmk__xpath_find_one(xml->doc, "//" PCMK_XE_FENCING_LEVEL,
LOG_WARNING);
}
if (xml != NULL) {
local_mode = unpack_level_kind(xml);
local_target = stonith_level_key(xml, local_mode);
pcmk__xe_get_int(xml, PCMK_XA_INDEX, &local_id);
}
if (mode != NULL) {
*mode = local_mode;
}
if (id != NULL) {
*id = local_id;
}
if (target != NULL) {
*target = local_target;
} else {
free(local_target);
}
return xml;
}
/*!
* \internal
* \brief Register a fencing topology level for a target
*
* Given an XML request specifying the target name, level index, and device IDs
* for the level, this will create an entry for the target in the global topology
* table if one does not already exist, then append the specified device IDs to
* the entry's device list for the specified level.
*
* \param[in] msg XML request for STONITH level registration
* \param[out] result Where to set result of registration (can be \c NULL)
*/
void
fenced_register_level(xmlNode *msg, pcmk__action_result_t *result)
{
int id = 0;
xmlNode *level;
enum fenced_target_by mode;
char *target;
stonith_topology_t *tp;
const char *value = NULL;
CRM_CHECK(msg != NULL, return);
level = unpack_level_request(msg, &mode, &target, &id);
if (level == NULL) {
set_bad_request_result(result);
return;
}
// Ensure an ID was given (even the client API adds an ID)
if (pcmk__str_empty(pcmk__xe_id(level))) {
crm_warn("Ignoring registration for topology level without ID");
free(target);
crm_log_xml_trace(level, "Bad level");
pcmk__format_result(result, CRM_EX_INVALID_PARAM, PCMK_EXEC_INVALID,
"Topology level is invalid without ID");
return;
}
// Ensure a valid target was specified
if (mode == fenced_target_by_unknown) {
crm_warn("Ignoring registration for topology level '%s' "
"without valid target", pcmk__xe_id(level));
free(target);
crm_log_xml_trace(level, "Bad level");
pcmk__format_result(result, CRM_EX_INVALID_PARAM, PCMK_EXEC_INVALID,
"Invalid target for topology level '%s'",
pcmk__xe_id(level));
return;
}
// Ensure level ID is in allowed range
if ((id < ST__LEVEL_MIN) || (id > ST__LEVEL_MAX)) {
crm_warn("Ignoring topology registration for %s with invalid level %d",
target, id);
free(target);
crm_log_xml_trace(level, "Bad level");
pcmk__format_result(result, CRM_EX_INVALID_PARAM, PCMK_EXEC_INVALID,
"Invalid level number '%s' for topology level '%s'",
pcmk__s(pcmk__xe_get(level, PCMK_XA_INDEX), ""),
pcmk__xe_id(level));
return;
}
/* Find or create topology table entry */
tp = g_hash_table_lookup(topology, target);
if (tp == NULL) {
tp = pcmk__assert_alloc(1, sizeof(stonith_topology_t));
tp->kind = mode;
tp->target = target;
tp->target_value = pcmk__xe_get_copy(level, PCMK_XA_TARGET_VALUE);
tp->target_pattern = pcmk__xe_get_copy(level, PCMK_XA_TARGET_PATTERN);
tp->target_attribute = pcmk__xe_get_copy(level, PCMK_XA_TARGET_ATTRIBUTE);
g_hash_table_replace(topology, tp->target, tp);
crm_trace("Added %s (%d) to the topology (%d active entries)",
target, (int) mode, g_hash_table_size(topology));
} else {
free(target);
}
if (tp->levels[id] != NULL) {
crm_info("Adding to the existing %s[%d] topology entry",
tp->target, id);
}
value = pcmk__xe_get(level, PCMK_XA_DEVICES);
if (value != NULL) {
/* Empty string and whitespace are not possible with schema validation
* enabled. Don't bother handling them specially here.
*/
gchar **devices = g_strsplit(value, ",", 0);
for (char **dev = devices; (dev != NULL) && (*dev != NULL); dev++) {
crm_trace("Adding device '%s' for %s[%d]", *dev, tp->target, id);
tp->levels[id] = g_list_append(tp->levels[id],
pcmk__str_copy(*dev));
}
g_strfreev(devices);
}
{
int nlevels = count_active_levels(tp);
crm_info("Target %s has %d active fencing level%s",
tp->target, nlevels, pcmk__plural_s(nlevels));
}
pcmk__set_result(result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
}
/*!
* \internal
* \brief Unregister a fencing topology level for a target
*
* Given an XML request specifying the target name and level index (or 0 for all
* levels), this will remove any corresponding entry for the target from the
* global topology table.
*
* \param[in] msg XML request for STONITH level registration
* \param[out] result Where to set result of unregistration (can be \c NULL)
*/
void
fenced_unregister_level(xmlNode *msg, pcmk__action_result_t *result)
{
int id = -1;
stonith_topology_t *tp;
char *target;
xmlNode *level = NULL;
level = unpack_level_request(msg, NULL, &target, &id);
if (level == NULL) {
set_bad_request_result(result);
return;
}
// Ensure level ID is in allowed range
if ((id < 0) || (id >= ST__LEVEL_COUNT)) {
crm_warn("Ignoring topology unregistration for %s with invalid level %d",
target, id);
free(target);
crm_log_xml_trace(level, "Bad level");
pcmk__format_result(result, CRM_EX_INVALID_PARAM, PCMK_EXEC_INVALID,
"Invalid level number '%s' for topology level %s",
pcmk__s(pcmk__xe_get(level, PCMK_XA_INDEX),
"<null>"),
// Client API doesn't add ID to unregistration XML
pcmk__s(pcmk__xe_id(level), ""));
return;
}
tp = g_hash_table_lookup(topology, target);
if (tp == NULL) {
guint nentries = g_hash_table_size(topology);
crm_info("No fencing topology found for %s (%d active %s)",
target, nentries,
pcmk__plural_alt(nentries, "entry", "entries"));
} else if (id == 0 && g_hash_table_remove(topology, target)) {
guint nentries = g_hash_table_size(topology);
crm_info("Removed all fencing topology entries related to %s "
"(%d active %s remaining)", target, nentries,
pcmk__plural_alt(nentries, "entry", "entries"));
} else if (tp->levels[id] != NULL) {
guint nlevels;
g_list_free_full(tp->levels[id], free);
tp->levels[id] = NULL;
nlevels = count_active_levels(tp);
crm_info("Removed level %d from fencing topology for %s "
"(%d active level%s remaining)",
id, target, nlevels, pcmk__plural_s(nlevels));
}
free(target);
pcmk__set_result(result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
}
static char *
list_to_string(GList *list, const char *delim, gboolean terminate_with_delim)
{
int max = g_list_length(list);
size_t delim_len = delim?strlen(delim):0;
size_t alloc_size = 1 + (max?((max-1+(terminate_with_delim?1:0))*delim_len):0);
char *rv;
GList *gIter;
char *pos = NULL;
const char *lead_delim = "";
for (gIter = list; gIter != NULL; gIter = gIter->next) {
const char *value = (const char *) gIter->data;
alloc_size += strlen(value);
}
rv = pcmk__assert_alloc(alloc_size, sizeof(char));
pos = rv;
for (gIter = list; gIter != NULL; gIter = gIter->next) {
const char *value = (const char *) gIter->data;
pos = &pos[sprintf(pos, "%s%s", lead_delim, value)];
lead_delim = delim;
}
if (max && terminate_with_delim) {
sprintf(pos, "%s", delim);
}
return rv;
}
/*!
* \internal
* \brief Execute a fence agent action directly (and asynchronously)
*
* Handle a STONITH_OP_EXEC API message by scheduling a requested agent action
* directly on a specified device. Only list, monitor, and status actions are
* expected to use this call, though it should work with any agent command.
*
* \param[in] msg Request XML specifying action
* \param[out] result Where to store result of action
*
* \note If the action is monitor, the device must be registered via the API
* (CIB registration is not sufficient), because monitor should not be
* possible unless the device is "started" (API registered).
*/
static void
execute_agent_action(xmlNode *msg, pcmk__action_result_t *result)
{
xmlNode *dev = pcmk__xpath_find_one(msg->doc, "//" PCMK__XE_ST_DEVICE_ID,
LOG_ERR);
xmlNode *op = pcmk__xpath_find_one(msg->doc,
"//*[@" PCMK__XA_ST_DEVICE_ACTION "]",
LOG_ERR);
const char *id = pcmk__xe_get(dev, PCMK__XA_ST_DEVICE_ID);
const char *action = pcmk__xe_get(op, PCMK__XA_ST_DEVICE_ACTION);
async_command_t *cmd = NULL;
fenced_device_t *device = NULL;
if ((id == NULL) || (action == NULL)) {
crm_info("Malformed API action request: device %s, action %s",
(id? id : "not specified"),
(action? action : "not specified"));
set_bad_request_result(result);
return;
}
if (pcmk__str_eq(id, STONITH_WATCHDOG_ID, pcmk__str_none)) {
// Watchdog agent actions are implemented internally
if (fencing_watchdog_timeout_ms <= 0) {
pcmk__set_result(result, CRM_EX_ERROR, PCMK_EXEC_NO_FENCE_DEVICE,
"Watchdog fence device not configured");
return;
} else if (pcmk__str_eq(action, PCMK_ACTION_LIST, pcmk__str_none)) {
pcmk__set_result(result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
pcmk__set_result_output(result,
list_to_string(stonith_watchdog_targets,
"\n", TRUE),
NULL);
return;
} else if (pcmk__str_eq(action, PCMK_ACTION_MONITOR, pcmk__str_none)) {
pcmk__set_result(result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
return;
}
}
device = g_hash_table_lookup(device_table, id);
if (device == NULL) {
crm_info("Ignoring API '%s' action request because device %s not found",
action, id);
pcmk__format_result(result, CRM_EX_ERROR, PCMK_EXEC_NO_FENCE_DEVICE,
"'%s' not found", id);
return;
} else if (!pcmk_is_set(device->flags, fenced_df_api_registered)
&& (strcmp(action, PCMK_ACTION_MONITOR) == 0)) {
// Monitors may run only on "started" (API-registered) devices
crm_info("Ignoring API '%s' action request because device %s not active",
action, id);
pcmk__format_result(result, CRM_EX_ERROR, PCMK_EXEC_NO_FENCE_DEVICE,
"'%s' not active", id);
return;
}
cmd = create_async_command(msg);
if (cmd == NULL) {
crm_log_xml_warn(msg, "invalid");
set_bad_request_result(result);
return;
}
schedule_stonith_command(cmd, device);
pcmk__set_result(result, CRM_EX_OK, PCMK_EXEC_PENDING, NULL);
}
static void
search_devices_record_result(struct device_search_s *search, const char *device, gboolean can_fence)
{
search->replies_received++;
if (can_fence && device) {
if (search->support_action_only != fenced_df_none) {
fenced_device_t *dev = g_hash_table_lookup(device_table, device);
if (dev && !pcmk_is_set(dev->flags, search->support_action_only)) {
return;
}
}
search->capable = g_list_append(search->capable,
pcmk__str_copy(device));
}
if (search->replies_needed == search->replies_received) {
guint ndevices = g_list_length(search->capable);
crm_debug("Search found %d device%s that can perform '%s' targeting %s",
ndevices, pcmk__plural_s(ndevices),
(search->action? search->action : "unknown action"),
(search->host? search->host : "any node"));
search->callback(search->capable, search->user_data);
free(search->host);
free(search->action);
free(search);
}
}
/*!
* \internal
* \brief Check whether the local host is allowed to execute a fencing action
*
* \param[in] device Fence device to check
* \param[in] action Fence action to check
* \param[in] target Hostname of fence target
* \param[in] allow_self Whether self-fencing is allowed for this operation
*
* \return TRUE if local host is allowed to execute action, FALSE otherwise
*/
static gboolean
localhost_is_eligible(const fenced_device_t *device, const char *action,
const char *target, gboolean allow_self)
{
gboolean localhost_is_target = pcmk__str_eq(target, fenced_get_local_node(),
pcmk__str_casei);
if ((device != NULL) && (action != NULL)
&& (device->on_target_actions != NULL)
&& (strstr((const char*) device->on_target_actions->str,
action) != NULL)) {
if (!localhost_is_target) {
crm_trace("Operation '%s' using %s can only be executed for local "
"host, not %s", action, device->id, target);
return FALSE;
}
} else if (localhost_is_target && !allow_self) {
crm_trace("'%s' operation does not support self-fencing", action);
return FALSE;
}
return TRUE;
}
/*!
* \internal
* \brief Check if local node is allowed to execute (possibly remapped) action
*
* \param[in] device Fence device to check
* \param[in] action Fence action to check
* \param[in] target Node name of fence target
* \param[in] allow_self Whether self-fencing is allowed for this operation
*
* \return true if local node is allowed to execute \p action or any actions it
* might be remapped to, otherwise false
*/
static bool
localhost_is_eligible_with_remap(const fenced_device_t *device,
const char *action, const char *target,
gboolean allow_self)
{
// Check exact action
if (localhost_is_eligible(device, action, target, allow_self)) {
return true;
}
// Check potential remaps
if (pcmk__str_eq(action, PCMK_ACTION_REBOOT, pcmk__str_none)) {
/* "reboot" might get remapped to "off" then "on", so even if reboot is
* disallowed, return true if either of those is allowed. We'll report
* the disallowed actions with the results. We never allow self-fencing
* for remapped "on" actions because the target is off at that point.
*/
if (localhost_is_eligible(device, PCMK_ACTION_OFF, target, allow_self)
|| localhost_is_eligible(device, PCMK_ACTION_ON, target, FALSE)) {
return true;
}
}
return false;
}
/*!
* \internal
* \brief Check whether we can use a device's cached target list
*
* \param[in] dev Fencing device to check
*
* \return \c true if \p dev cached its targets less than a minute ago,
* otherwise \c false
*/
static inline bool
can_use_target_cache(const fenced_device_t *dev)
{
return (dev->targets != NULL) && (time(NULL) < (dev->targets_age + 60));
}
static void
can_fence_host_with_device(fenced_device_t *dev,
struct device_search_s *search)
{
gboolean can = FALSE;
const char *check_type = "Internal bug";
const char *target = NULL;
const char *alias = NULL;
const char *dev_id = "Unspecified device";
const char *action = (search == NULL)? NULL : search->action;
CRM_CHECK((dev != NULL) && (action != NULL), goto search_report_results);
if (dev->id != NULL) {
dev_id = dev->id;
}
target = search->host;
if (target == NULL) {
can = TRUE;
check_type = "No target";
goto search_report_results;
}
/* Answer immediately if the device does not support the action
* or the local node is not allowed to perform it
*/
if (pcmk__str_eq(action, PCMK_ACTION_ON, pcmk__str_none)
&& !pcmk_is_set(dev->flags, fenced_df_supports_on)) {
check_type = "Agent does not support 'on'";
goto search_report_results;
} else if (!localhost_is_eligible_with_remap(dev, action, target,
search->allow_self)) {
check_type = "This node is not allowed to execute action";
goto search_report_results;
}
// Check eligibility as specified by pcmk_host_check
check_type = target_list_type(dev);
alias = g_hash_table_lookup(dev->aliases, target);
if (pcmk__str_eq(check_type, PCMK_VALUE_NONE, pcmk__str_casei)) {
can = TRUE;
} else if (pcmk__str_eq(check_type, PCMK_VALUE_STATIC_LIST,
pcmk__str_casei)) {
if (pcmk__str_in_list(target, dev->targets, pcmk__str_casei)) {
can = TRUE;
- } else if (g_hash_table_lookup(dev->params, PCMK_STONITH_HOST_MAP)
+ } else if (g_hash_table_lookup(dev->params, PCMK_FENCING_HOST_MAP)
&& g_hash_table_lookup(dev->aliases, target)) {
can = TRUE;
}
} else if (pcmk__str_eq(check_type, PCMK_VALUE_DYNAMIC_LIST,
pcmk__str_casei)) {
if (!can_use_target_cache(dev)) {
int device_timeout = get_action_timeout(dev, PCMK_ACTION_LIST,
search->per_device_timeout);
if (device_timeout > search->per_device_timeout) {
crm_notice("Since the pcmk_list_timeout (%ds) parameter of %s "
"is larger than " PCMK_OPT_FENCING_TIMEOUT
" (%ds), timeout may occur",
device_timeout, dev_id, search->per_device_timeout);
}
crm_trace("Running '%s' to check whether %s is eligible to fence %s (%s)",
check_type, dev_id, target, action);
schedule_internal_command(__func__, dev, PCMK_ACTION_LIST, NULL,
search->per_device_timeout, search, dynamic_list_search_cb);
/* we'll respond to this search request async in the cb */
return;
}
if (pcmk__str_in_list(((alias == NULL)? target : alias), dev->targets,
pcmk__str_casei)) {
can = TRUE;
}
} else if (pcmk__str_eq(check_type, PCMK_VALUE_STATUS, pcmk__str_casei)) {
int device_timeout = get_action_timeout(dev, check_type, search->per_device_timeout);
if (device_timeout > search->per_device_timeout) {
crm_notice("Since the pcmk_status_timeout (%ds) parameter of %s is "
"larger than " PCMK_OPT_FENCING_TIMEOUT " (%ds), "
"timeout may occur",
device_timeout, dev_id, search->per_device_timeout);
}
crm_trace("Running '%s' to check whether %s is eligible to fence %s (%s)",
check_type, dev_id, target, action);
schedule_internal_command(__func__, dev, PCMK_ACTION_STATUS, target,
search->per_device_timeout, search, status_search_cb);
/* we'll respond to this search request async in the cb */
return;
} else {
crm_err("Invalid value for " PCMK_FENCING_HOST_CHECK ": %s",
check_type);
check_type = "Invalid " PCMK_FENCING_HOST_CHECK;
}
search_report_results:
crm_info("%s is%s eligible to fence (%s) %s%s%s%s: %s",
dev_id, (can? "" : " not"), pcmk__s(action, "unspecified action"),
pcmk__s(target, "unspecified target"),
(alias == NULL)? "" : " (as '", pcmk__s(alias, ""),
(alias == NULL)? "" : "')", check_type);
search_devices_record_result(search, ((dev == NULL)? NULL : dev_id), can);
}
static void
search_devices(gpointer key, gpointer value, gpointer user_data)
{
fenced_device_t *dev = value;
struct device_search_s *search = user_data;
can_fence_host_with_device(dev, search);
}
#define DEFAULT_QUERY_TIMEOUT 20
static void
get_capable_devices(const char *host, const char *action, int timeout,
bool allow_self, void *user_data,
void (*callback) (GList * devices, void *user_data),
uint32_t support_action_only)
{
struct device_search_s *search;
guint ndevices = g_hash_table_size(device_table);
if (ndevices == 0) {
callback(NULL, user_data);
return;
}
search = pcmk__assert_alloc(1, sizeof(struct device_search_s));
search->host = pcmk__str_copy(host);
search->action = pcmk__str_copy(action);
search->per_device_timeout = timeout;
search->allow_self = allow_self;
search->callback = callback;
search->user_data = user_data;
search->support_action_only = support_action_only;
/* We are guaranteed this many replies, even if a device is
* unregistered while the search is in progress.
*/
search->replies_needed = ndevices;
crm_debug("Searching %d device%s to see which can execute '%s' targeting %s",
ndevices, pcmk__plural_s(ndevices),
(search->action? search->action : "unknown action"),
(search->host? search->host : "any node"));
fenced_foreach_device(search_devices, search);
}
struct st_query_data {
xmlNode *reply;
char *remote_peer;
char *client_id;
char *target;
char *action;
int call_options;
};
/*!
* \internal
* \brief Add action-specific attributes to query reply XML
*
* \param[in,out] xml XML to add attributes to
* \param[in] action Fence action
* \param[in] device Fence device
* \param[in] target Fence target
*/
static void
add_action_specific_attributes(xmlNode *xml, const char *action,
const fenced_device_t *device,
const char *target)
{
int action_specific_timeout;
int delay_max;
int delay_base;
CRM_CHECK(xml && action && device, return);
// PCMK__XA_ST_REQUIRED is currently used only for unfencing
if (is_action_required(action, device)) {
crm_trace("Action '%s' is required using %s", action, device->id);
pcmk__xe_set_int(xml, PCMK__XA_ST_REQUIRED, 1);
}
// pcmk_<action>_timeout if configured
action_specific_timeout = get_action_timeout(device, action, 0);
if (action_specific_timeout) {
crm_trace("Action '%s' has timeout %ds using %s",
action, action_specific_timeout, device->id);
pcmk__xe_set_int(xml, PCMK__XA_ST_ACTION_TIMEOUT,
action_specific_timeout);
}
delay_max = get_action_delay_max(device, action);
if (delay_max > 0) {
crm_trace("Action '%s' has maximum random delay %ds using %s",
action, delay_max, device->id);
pcmk__xe_set_int(xml, PCMK__XA_ST_DELAY_MAX, delay_max);
}
delay_base = get_action_delay_base(device, action, target);
if (delay_base > 0) {
pcmk__xe_set_int(xml, PCMK__XA_ST_DELAY_BASE, delay_base);
}
if ((delay_max > 0) && (delay_base == 0)) {
crm_trace("Action '%s' has maximum random delay %ds using %s",
action, delay_max, device->id);
} else if ((delay_max == 0) && (delay_base > 0)) {
crm_trace("Action '%s' has a static delay of %ds using %s",
action, delay_base, device->id);
} else if ((delay_max > 0) && (delay_base > 0)) {
crm_trace("Action '%s' has a minimum delay of %ds and a randomly chosen "
"maximum delay of %ds using %s",
action, delay_base, delay_max, device->id);
}
}
/*!
* \internal
* \brief Add "disallowed" attribute to query reply XML if appropriate
*
* \param[in,out] xml XML to add attribute to
* \param[in] action Fence action
* \param[in] device Fence device
* \param[in] target Fence target
* \param[in] allow_self Whether self-fencing is allowed
*/
static void
add_disallowed(xmlNode *xml, const char *action, const fenced_device_t *device,
const char *target, gboolean allow_self)
{
if (!localhost_is_eligible(device, action, target, allow_self)) {
crm_trace("Action '%s' using %s is disallowed for local host",
action, device->id);
pcmk__xe_set_bool_attr(xml, PCMK__XA_ST_ACTION_DISALLOWED, true);
}
}
/*!
* \internal
* \brief Add child element with action-specific values to query reply XML
*
* \param[in,out] xml XML to add attribute to
* \param[in] action Fence action
* \param[in] device Fence device
* \param[in] target Fence target
* \param[in] allow_self Whether self-fencing is allowed
*/
static void
add_action_reply(xmlNode *xml, const char *action,
const fenced_device_t *device, const char *target,
gboolean allow_self)
{
xmlNode *child = pcmk__xe_create(xml, PCMK__XE_ST_DEVICE_ACTION);
pcmk__xe_set(child, PCMK_XA_ID, action);
add_action_specific_attributes(child, action, device, target);
add_disallowed(child, action, device, target, allow_self);
}
/*!
* \internal
* \brief Send a reply to a CPG peer or IPC client
*
* \param[in] reply XML reply to send
* \param[in] call_options Send synchronously if st_opt_sync_call is set
* \param[in] remote_peer If not NULL, name of peer node to send CPG reply
* \param[in,out] client If not NULL, client to send IPC reply
*/
static void
stonith_send_reply(const xmlNode *reply, int call_options,
const char *remote_peer, pcmk__client_t *client)
{
CRM_CHECK((reply != NULL) && ((remote_peer != NULL) || (client != NULL)),
return);
if (remote_peer == NULL) {
do_local_reply(reply, client, call_options);
} else {
const pcmk__node_status_t *node =
pcmk__get_node(0, remote_peer, NULL,
pcmk__node_search_cluster_member);
pcmk__cluster_send_message(node, pcmk_ipc_fenced, reply);
}
}
static void
stonith_query_capable_device_cb(GList * devices, void *user_data)
{
struct st_query_data *query = user_data;
int available_devices = 0;
xmlNode *wrapper = NULL;
xmlNode *list = NULL;
GList *lpc = NULL;
pcmk__client_t *client = NULL;
if (query->client_id != NULL) {
client = pcmk__find_client_by_id(query->client_id);
if ((client == NULL) && (query->remote_peer == NULL)) {
crm_trace("Skipping reply to %s: no longer a client",
query->client_id);
goto done;
}
}
// Pack the results into XML
wrapper = pcmk__xe_create(query->reply, PCMK__XE_ST_CALLDATA);
list = pcmk__xe_create(wrapper, __func__);
pcmk__xe_set(list, PCMK__XA_ST_TARGET, query->target);
for (lpc = devices; lpc != NULL; lpc = lpc->next) {
fenced_device_t *device = g_hash_table_lookup(device_table, lpc->data);
const char *action = query->action;
xmlNode *dev = NULL;
if (!device) {
/* It is possible the device got unregistered while
* determining who can fence the target */
continue;
}
available_devices++;
dev = pcmk__xe_create(list, PCMK__XE_ST_DEVICE_ID);
pcmk__xe_set(dev, PCMK_XA_ID, device->id);
pcmk__xe_set(dev, PCMK__XA_NAMESPACE, device->namespace);
pcmk__xe_set(dev, PCMK_XA_AGENT, device->agent);
// Has had successful monitor, list, or status on this node
pcmk__xe_set_int(dev, PCMK__XA_ST_MONITOR_VERIFIED,
pcmk_is_set(device->flags, fenced_df_verified));
pcmk__xe_set_int(dev, PCMK__XA_ST_DEVICE_SUPPORT_FLAGS, device->flags);
/* If the originating fencer wants to reboot the node, and we have a
* capable device that doesn't support "reboot", remap to "off" instead.
*/
if (!pcmk_is_set(device->flags, fenced_df_supports_reboot)
&& pcmk__str_eq(query->action, PCMK_ACTION_REBOOT,
pcmk__str_none)) {
crm_trace("%s doesn't support reboot, using values for off instead",
device->id);
action = PCMK_ACTION_OFF;
}
/* Add action-specific values if available */
add_action_specific_attributes(dev, action, device, query->target);
if (pcmk__str_eq(query->action, PCMK_ACTION_REBOOT, pcmk__str_none)) {
/* A "reboot" *might* get remapped to "off" then "on", so after
* sending the "reboot"-specific values in the main element, we add
* sub-elements for "off" and "on" values.
*
* We short-circuited earlier if "reboot", "off" and "on" are all
* disallowed for the local host. However if only one or two are
* disallowed, we send back the results and mark which ones are
* disallowed. If "reboot" is disallowed, this might cause problems
* with older fencer versions, which won't check for it. Older
* versions will ignore "off" and "on", so they are not a problem.
*/
add_disallowed(dev, action, device, query->target,
pcmk_is_set(query->call_options,
st_opt_allow_self_fencing));
add_action_reply(dev, PCMK_ACTION_OFF, device, query->target,
pcmk_is_set(query->call_options,
st_opt_allow_self_fencing));
add_action_reply(dev, PCMK_ACTION_ON, device, query->target, FALSE);
}
/* A query without a target wants device parameters */
if (query->target == NULL) {
xmlNode *attrs = pcmk__xe_create(dev, PCMK__XE_ATTRIBUTES);
g_hash_table_foreach(device->params, hash2field, attrs);
}
}
pcmk__xe_set_int(list, PCMK__XA_ST_AVAILABLE_DEVICES, available_devices);
if (query->target) {
crm_debug("Found %d matching device%s for target '%s'",
available_devices, pcmk__plural_s(available_devices),
query->target);
} else {
crm_debug("%d device%s installed",
available_devices, pcmk__plural_s(available_devices));
}
crm_log_xml_trace(list, "query-result");
stonith_send_reply(query->reply, query->call_options, query->remote_peer,
client);
done:
pcmk__xml_free(query->reply);
free(query->remote_peer);
free(query->client_id);
free(query->target);
free(query->action);
free(query);
g_list_free_full(devices, free);
}
/*!
* \internal
* \brief Log the result of an asynchronous command
*
* \param[in] cmd Command the result is for
* \param[in] result Result of command
* \param[in] pid Process ID of command, if available
* \param[in] next Alternate device that will be tried if command failed
* \param[in] op_merged Whether this command was merged with an earlier one
*/
static void
log_async_result(const async_command_t *cmd,
const pcmk__action_result_t *result,
int pid, const char *next, bool op_merged)
{
int log_level = LOG_ERR;
int output_log_level = LOG_NEVER;
guint devices_remaining = g_list_length(cmd->next_device_iter);
GString *msg = g_string_sized_new(80); // Reasonable starting size
// Choose log levels appropriately if we have a result
if (pcmk__result_ok(result)) {
log_level = (cmd->target == NULL)? LOG_DEBUG : LOG_NOTICE;
if ((result->action_stdout != NULL)
&& !pcmk__str_eq(cmd->action, PCMK_ACTION_METADATA,
pcmk__str_none)) {
output_log_level = LOG_DEBUG;
}
next = NULL;
} else {
log_level = (cmd->target == NULL)? LOG_NOTICE : LOG_ERR;
if ((result->action_stdout != NULL)
&& !pcmk__str_eq(cmd->action, PCMK_ACTION_METADATA,
pcmk__str_none)) {
output_log_level = LOG_WARNING;
}
}
// Build the log message piece by piece
pcmk__g_strcat(msg, "Operation '", cmd->action, "' ", NULL);
if (pid != 0) {
g_string_append_printf(msg, "[%d] ", pid);
}
if (cmd->target != NULL) {
pcmk__g_strcat(msg, "targeting ", cmd->target, " ", NULL);
}
if (cmd->device != NULL) {
pcmk__g_strcat(msg, "using ", cmd->device, " ", NULL);
}
// Add exit status or execution status as appropriate
if (result->execution_status == PCMK_EXEC_DONE) {
g_string_append_printf(msg, "returned %d", result->exit_status);
} else {
pcmk__g_strcat(msg, "could not be executed: ",
pcmk_exec_status_str(result->execution_status), NULL);
}
// Add exit reason and next device if appropriate
if (result->exit_reason != NULL) {
pcmk__g_strcat(msg, " (", result->exit_reason, ")", NULL);
}
if (next != NULL) {
pcmk__g_strcat(msg, ", retrying with ", next, NULL);
}
if (devices_remaining > 0) {
g_string_append_printf(msg, " (%u device%s remaining)",
(unsigned int) devices_remaining,
pcmk__plural_s(devices_remaining));
}
g_string_append_printf(msg, " " QB_XS " %scall %d from %s",
(op_merged? "merged " : ""), cmd->id,
cmd->client_name);
// Log the result
do_crm_log(log_level, "%s", msg->str);
g_string_free(msg, TRUE);
// Log the output (which may have multiple lines), if appropriate
if (output_log_level != LOG_NEVER) {
char *prefix = crm_strdup_printf("%s[%d]", cmd->device, pid);
crm_log_output(output_log_level, prefix, result->action_stdout);
free(prefix);
}
}
/*!
* \internal
* \brief Reply to requester after asynchronous command completion
*
* \param[in] cmd Command that completed
* \param[in] result Result of command
* \param[in] pid Process ID of command, if available
* \param[in] merged If true, command was merged with another, not executed
*/
static void
send_async_reply(const async_command_t *cmd, const pcmk__action_result_t *result,
int pid, bool merged)
{
xmlNode *reply = NULL;
pcmk__client_t *client = NULL;
CRM_CHECK((cmd != NULL) && (result != NULL), return);
log_async_result(cmd, result, pid, NULL, merged);
if (cmd->client != NULL) {
client = pcmk__find_client_by_id(cmd->client);
if ((client == NULL) && (cmd->origin == NULL)) {
crm_trace("Skipping reply to %s: no longer a client", cmd->client);
return;
}
}
reply = construct_async_reply(cmd, result);
if (merged) {
pcmk__xe_set_bool_attr(reply, PCMK__XA_ST_OP_MERGED, true);
}
if (pcmk__is_fencing_action(cmd->action)
&& pcmk__str_eq(cmd->origin, cmd->target, pcmk__str_casei)) {
/* The target was also the originator, so broadcast the result on its
* behalf (since it will be unable to).
*/
crm_trace("Broadcast '%s' result for %s (target was also originator)",
cmd->action, cmd->target);
pcmk__xe_set(reply, PCMK__XA_SUBT, PCMK__VALUE_BROADCAST);
pcmk__xe_set(reply, PCMK__XA_ST_OP, STONITH_OP_NOTIFY);
pcmk__cluster_send_message(NULL, pcmk_ipc_fenced, reply);
} else {
// Reply only to the originator
stonith_send_reply(reply, cmd->options, cmd->origin, client);
}
crm_log_xml_trace(reply, "Reply");
pcmk__xml_free(reply);
}
static void
cancel_stonith_command(async_command_t * cmd)
{
fenced_device_t *device = cmd_device(cmd);
if (device) {
crm_trace("Cancel scheduled '%s' action using %s",
cmd->action, device->id);
device->pending_ops = g_list_remove(device->pending_ops, cmd);
}
}
/*!
* \internal
* \brief Cancel and reply to any duplicates of a just-completed operation
*
* Check whether any fencing operations are scheduled to do the same thing as
* one that just succeeded. If so, rather than performing the same operation
* twice, return the result of this operation for all matching pending commands.
*
* \param[in,out] cmd Fencing operation that just succeeded
* \param[in] result Result of \p cmd
* \param[in] pid If nonzero, process ID of agent invocation (for logs)
*
* \note Duplicate merging will do the right thing for either type of remapped
* reboot. If the executing fencer remapped an unsupported reboot to off,
* then cmd->action will be "reboot" and will be merged with any other
* reboot requests. If the originating fencer remapped a topology reboot
* to off then on, we will get here once with cmd->action "off" and once
* with "on", and they will be merged separately with similar requests.
*/
static void
reply_to_duplicates(async_command_t *cmd, const pcmk__action_result_t *result,
int pid)
{
GList *next = NULL;
for (GList *iter = cmd_list; iter != NULL; iter = next) {
async_command_t *cmd_other = iter->data;
next = iter->next; // We might delete this entry, so grab next now
if (cmd == cmd_other) {
continue;
}
/* A pending operation matches if:
* 1. The client connections are different.
* 2. The target is the same.
* 3. The fencing action is the same.
* 4. The device scheduled to execute the action is the same.
*/
if (pcmk__str_eq(cmd->client, cmd_other->client, pcmk__str_casei) ||
!pcmk__str_eq(cmd->target, cmd_other->target, pcmk__str_casei) ||
!pcmk__str_eq(cmd->action, cmd_other->action, pcmk__str_none) ||
!pcmk__str_eq(cmd->device, cmd_other->device, pcmk__str_casei)) {
continue;
}
crm_notice("Merging fencing action '%s'%s%s originating from "
"client %s with identical fencing request from client %s",
cmd_other->action,
(cmd_other->target == NULL)? "" : " targeting ",
pcmk__s(cmd_other->target, ""), cmd_other->client_name,
cmd->client_name);
// Stop tracking the duplicate, send its result, and cancel it
cmd_list = g_list_remove_link(cmd_list, iter);
send_async_reply(cmd_other, result, pid, true);
cancel_stonith_command(cmd_other);
free_async_command(cmd_other);
g_list_free_1(iter);
}
}
/*!
* \internal
* \brief Return the next required device (if any) for an operation
*
* \param[in,out] cmd Fencing operation that just succeeded
*
* \return Next device required for action if any, otherwise NULL
*/
static fenced_device_t *
next_required_device(async_command_t *cmd)
{
for (GList *iter = cmd->next_device_iter; iter != NULL; iter = iter->next) {
fenced_device_t *next_device = g_hash_table_lookup(device_table,
iter->data);
if (is_action_required(cmd->action, next_device)) {
/* This is only called for successful actions, so it's OK to skip
* non-required devices.
*/
cmd->next_device_iter = iter->next;
return next_device;
}
}
return NULL;
}
static void
st_child_done(int pid, const pcmk__action_result_t *result, void *user_data)
{
async_command_t *cmd = user_data;
fenced_device_t *device = NULL;
fenced_device_t *next_device = NULL;
CRM_CHECK(cmd != NULL, return);
device = cmd_device(cmd);
cmd->active_on = NULL;
/* The device is ready to do something else now */
if (device) {
if (!pcmk_is_set(device->flags, fenced_df_verified)
&& pcmk__result_ok(result)
&& pcmk__strcase_any_of(cmd->action, PCMK_ACTION_LIST,
PCMK_ACTION_MONITOR, PCMK_ACTION_STATUS,
NULL)) {
fenced_device_set_flags(device, fenced_df_verified);
}
mainloop_set_trigger(device->work);
}
if (pcmk__result_ok(result)) {
next_device = next_required_device(cmd);
} else if ((cmd->next_device_iter != NULL)
&& !is_action_required(cmd->action, device)) {
/* if this device didn't work out, see if there are any others we can try.
* if the failed device was 'required', we can't pick another device. */
next_device = g_hash_table_lookup(device_table,
cmd->next_device_iter->data);
cmd->next_device_iter = cmd->next_device_iter->next;
}
if (next_device == NULL) {
send_async_reply(cmd, result, pid, false);
if (pcmk__result_ok(result)) {
reply_to_duplicates(cmd, result, pid);
}
free_async_command(cmd);
} else { // This operation requires more fencing
log_async_result(cmd, result, pid, next_device->id, false);
schedule_stonith_command(cmd, next_device);
}
}
static void
stonith_fence_get_devices_cb(GList * devices, void *user_data)
{
async_command_t *cmd = user_data;
fenced_device_t *device = NULL;
guint ndevices = g_list_length(devices);
crm_info("Found %d matching device%s for target '%s'",
ndevices, pcmk__plural_s(ndevices), cmd->target);
if (devices != NULL) {
device = g_hash_table_lookup(device_table, devices->data);
}
if (device == NULL) { // No device found
pcmk__action_result_t result = PCMK__UNKNOWN_RESULT;
pcmk__format_result(&result, CRM_EX_ERROR, PCMK_EXEC_NO_FENCE_DEVICE,
"No device configured for target '%s'",
cmd->target);
send_async_reply(cmd, &result, 0, false);
pcmk__reset_result(&result);
free_async_command(cmd);
g_list_free_full(devices, free);
} else {
/* Device found. Schedule a fencing command for it.
*
* Assign devices to device_list so that it will be freed with cmd.
*/
cmd->device_list = devices;
cmd->next_device_iter = devices->next;
schedule_stonith_command(cmd, device);
}
}
/*!
* \internal
* \brief Execute a fence action via the local node
*
* \param[in] msg Fencing request
* \param[out] result Where to store result of fence action
*/
static void
fence_locally(xmlNode *msg, pcmk__action_result_t *result)
{
const char *device_id = NULL;
fenced_device_t *device = NULL;
async_command_t *cmd = NULL;
xmlNode *dev = NULL;
CRM_CHECK((msg != NULL) && (result != NULL), return);
dev = pcmk__xpath_find_one(msg->doc, "//*[@" PCMK__XA_ST_TARGET "]",
LOG_ERR);
cmd = create_async_command(msg);
if (cmd == NULL) {
crm_log_xml_warn(msg, "invalid");
set_bad_request_result(result);
return;
}
device_id = pcmk__xe_get(dev, PCMK__XA_ST_DEVICE_ID);
if (device_id != NULL) {
device = g_hash_table_lookup(device_table, device_id);
if (device == NULL) {
crm_err("Requested device '%s' is not available", device_id);
pcmk__format_result(result, CRM_EX_ERROR, PCMK_EXEC_NO_FENCE_DEVICE,
"Requested device '%s' not found", device_id);
return;
}
schedule_stonith_command(cmd, device);
} else {
const char *host = pcmk__xe_get(dev, PCMK__XA_ST_TARGET);
if (pcmk_is_set(cmd->options, st_opt_cs_nodeid)) {
int nodeid = 0;
pcmk__node_status_t *node = NULL;
pcmk__scan_min_int(host, &nodeid, 0);
node = pcmk__search_node_caches(nodeid, NULL, NULL,
pcmk__node_search_any
|pcmk__node_search_cluster_cib);
if (node != NULL) {
host = node->name;
}
}
/* If we get to here, then self-fencing is implicitly allowed */
get_capable_devices(host, cmd->action, cmd->default_timeout,
TRUE, cmd, stonith_fence_get_devices_cb,
fenced_support_flag(cmd->action));
}
pcmk__set_result(result, CRM_EX_OK, PCMK_EXEC_PENDING, NULL);
}
/*!
* \internal
* \brief Build an XML reply for a fencing operation
*
* \param[in] request Request that reply is for
* \param[in] data If not NULL, add to reply as call data
* \param[in] result Full result of fencing operation
*
* \return Newly created XML reply
* \note The caller is responsible for freeing the result.
* \note This has some overlap with construct_async_reply(), but that copies
* values from an async_command_t, whereas this one copies them from the
* request.
*/
xmlNode *
fenced_construct_reply(const xmlNode *request, xmlNode *data,
const pcmk__action_result_t *result)
{
xmlNode *reply = NULL;
reply = pcmk__xe_create(NULL, PCMK__XE_ST_REPLY);
pcmk__xe_set(reply, PCMK__XA_ST_ORIGIN, __func__);
pcmk__xe_set(reply, PCMK__XA_T, PCMK__VALUE_STONITH_NG);
stonith__xe_set_result(reply, result);
if (request == NULL) {
/* Most likely, this is the result of a stonith operation that was
* initiated before we came up. Unfortunately that means we lack enough
* information to provide clients with a full result.
*
* @TODO Maybe synchronize this information at start-up?
*/
crm_warn("Missing request information for client notifications for "
"operation with result '%s' (initiated before we came up?)",
pcmk_exec_status_str(result->execution_status));
} else {
const char *name = NULL;
const char *value = NULL;
// Attributes to copy from request to reply
const char *names[] = {
PCMK__XA_ST_OP,
PCMK__XA_ST_CALLID,
PCMK__XA_ST_CLIENTID,
PCMK__XA_ST_CLIENTNAME,
PCMK__XA_ST_REMOTE_OP,
PCMK__XA_ST_CALLOPT,
};
for (int lpc = 0; lpc < PCMK__NELEM(names); lpc++) {
name = names[lpc];
value = pcmk__xe_get(request, name);
pcmk__xe_set(reply, name, value);
}
if (data != NULL) {
xmlNode *wrapper = pcmk__xe_create(reply, PCMK__XE_ST_CALLDATA);
pcmk__xml_copy(wrapper, data);
}
}
return reply;
}
/*!
* \internal
* \brief Build an XML reply to an asynchronous fencing command
*
* \param[in] cmd Fencing command that reply is for
* \param[in] result Command result
*/
static xmlNode *
construct_async_reply(const async_command_t *cmd,
const pcmk__action_result_t *result)
{
xmlNode *reply = pcmk__xe_create(NULL, PCMK__XE_ST_REPLY);
pcmk__xe_set(reply, PCMK__XA_ST_ORIGIN, __func__);
pcmk__xe_set(reply, PCMK__XA_T, PCMK__VALUE_STONITH_NG);
pcmk__xe_set(reply, PCMK__XA_ST_OP, cmd->op);
pcmk__xe_set(reply, PCMK__XA_ST_DEVICE_ID, cmd->device);
pcmk__xe_set(reply, PCMK__XA_ST_REMOTE_OP, cmd->remote_op_id);
pcmk__xe_set(reply, PCMK__XA_ST_CLIENTID, cmd->client);
pcmk__xe_set(reply, PCMK__XA_ST_CLIENTNAME, cmd->client_name);
pcmk__xe_set(reply, PCMK__XA_ST_TARGET, cmd->target);
pcmk__xe_set(reply, PCMK__XA_ST_DEVICE_ACTION, cmd->op);
pcmk__xe_set(reply, PCMK__XA_ST_ORIGIN, cmd->origin);
pcmk__xe_set_int(reply, PCMK__XA_ST_CALLID, cmd->id);
pcmk__xe_set_int(reply, PCMK__XA_ST_CALLOPT, cmd->options);
stonith__xe_set_result(reply, result);
return reply;
}
bool
fencing_peer_active(pcmk__node_status_t *peer)
{
return (peer != NULL) && (peer->name != NULL)
&& pcmk_is_set(peer->processes, crm_get_cluster_proc());
}
void
set_fencing_completed(remote_fencing_op_t *op)
{
struct timespec tv;
qb_util_timespec_from_epoch_get(&tv);
op->completed = tv.tv_sec;
op->completed_nsec = tv.tv_nsec;
}
/*!
* \internal
* \brief Look for alternate node needed if local node shouldn't fence target
*
* \param[in] target Node that must be fenced
*
* \return Name of an alternate node that should fence \p target if any,
* or NULL otherwise
*/
static const char *
check_alternate_host(const char *target)
{
if (pcmk__str_eq(target, fenced_get_local_node(), pcmk__str_casei)) {
GHashTableIter gIter;
pcmk__node_status_t *entry = NULL;
g_hash_table_iter_init(&gIter, pcmk__peer_cache);
while (g_hash_table_iter_next(&gIter, NULL, (void **)&entry)) {
if (fencing_peer_active(entry)
&& !pcmk__str_eq(entry->name, target, pcmk__str_casei)) {
crm_notice("Forwarding self-fencing request to %s",
entry->name);
return entry->name;
}
}
crm_warn("Will handle own fencing because no peer can");
}
return NULL;
}
static void
remove_relay_op(xmlNode * request)
{
xmlNode *dev = pcmk__xpath_find_one(request->doc,
"//*[@" PCMK__XA_ST_DEVICE_ACTION "]",
LOG_TRACE);
const char *relay_op_id = NULL;
const char *op_id = NULL;
const char *client_name = NULL;
const char *target = NULL;
remote_fencing_op_t *relay_op = NULL;
if (dev) {
target = pcmk__xe_get(dev, PCMK__XA_ST_TARGET);
}
relay_op_id = pcmk__xe_get(request, PCMK__XA_ST_REMOTE_OP_RELAY);
op_id = pcmk__xe_get(request, PCMK__XA_ST_REMOTE_OP);
client_name = pcmk__xe_get(request, PCMK__XA_ST_CLIENTNAME);
/* Delete RELAY operation. */
if ((relay_op_id != NULL) && (target != NULL)
&& pcmk__str_eq(target, fenced_get_local_node(), pcmk__str_casei)) {
relay_op = g_hash_table_lookup(stonith_remote_op_list, relay_op_id);
if (relay_op) {
GHashTableIter iter;
remote_fencing_op_t *list_op = NULL;
g_hash_table_iter_init(&iter, stonith_remote_op_list);
/* If the operation to be deleted is registered as a duplicate, delete the registration. */
while (g_hash_table_iter_next(&iter, NULL, (void **)&list_op)) {
GList *dup_iter = NULL;
if (list_op != relay_op) {
for (dup_iter = list_op->duplicates; dup_iter != NULL; dup_iter = dup_iter->next) {
remote_fencing_op_t *other = dup_iter->data;
if (other == relay_op) {
other->duplicates = g_list_remove(other->duplicates, relay_op);
break;
}
}
}
}
crm_debug("Deleting relay op %s ('%s'%s%s for %s), "
"replaced by op %s ('%s'%s%s for %s)",
relay_op->id, relay_op->action,
(relay_op->target == NULL)? "" : " targeting ",
pcmk__s(relay_op->target, ""),
relay_op->client_name, op_id, relay_op->action,
(target == NULL)? "" : " targeting ", pcmk__s(target, ""),
client_name);
g_hash_table_remove(stonith_remote_op_list, relay_op_id);
}
}
}
/*!
* \internal
* \brief Check whether an API request was sent by a privileged user
*
* API commands related to fencing configuration may be done only by privileged
* IPC users (i.e. root or hacluster), because all other users should go through
* the CIB to have ACLs applied. If no client was given, this is a peer request,
* which is always allowed.
*
* \param[in] c IPC client that sent request (or NULL if sent by CPG peer)
* \param[in] op Requested API operation (for logging only)
*
* \return true if sender is peer or privileged client, otherwise false
*/
static inline bool
is_privileged(const pcmk__client_t *c, const char *op)
{
if ((c == NULL) || pcmk_is_set(c->flags, pcmk__client_privileged)) {
return true;
} else {
crm_warn("Rejecting IPC request '%s' from unprivileged client %s",
pcmk__s(op, ""), pcmk__client_name(c));
return false;
}
}
// CRM_OP_REGISTER
static xmlNode *
handle_register_request(pcmk__request_t *request)
{
xmlNode *reply = pcmk__xe_create(NULL, "reply");
pcmk__assert(request->ipc_client != NULL);
pcmk__xe_set(reply, PCMK__XA_ST_OP, CRM_OP_REGISTER);
pcmk__xe_set(reply, PCMK__XA_ST_CLIENTID, request->ipc_client->id);
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
pcmk__set_request_flags(request, pcmk__request_reuse_options);
return reply;
}
// STONITH_OP_EXEC
static xmlNode *
handle_agent_request(pcmk__request_t *request)
{
execute_agent_action(request->xml, &request->result);
if (request->result.execution_status == PCMK_EXEC_PENDING) {
return NULL;
}
return fenced_construct_reply(request->xml, NULL, &request->result);
}
// STONITH_OP_TIMEOUT_UPDATE
static xmlNode *
handle_update_timeout_request(pcmk__request_t *request)
{
const char *call_id = pcmk__xe_get(request->xml, PCMK__XA_ST_CALLID);
const char *client_id = pcmk__xe_get(request->xml, PCMK__XA_ST_CLIENTID);
int op_timeout = 0;
pcmk__xe_get_int(request->xml, PCMK__XA_ST_TIMEOUT, &op_timeout);
do_stonith_async_timeout_update(client_id, call_id, op_timeout);
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
return NULL;
}
// STONITH_OP_QUERY
static xmlNode *
handle_query_request(pcmk__request_t *request)
{
int timeout = 0;
xmlNode *dev = NULL;
const char *action = NULL;
const char *target = NULL;
const char *client_id = pcmk__xe_get(request->xml, PCMK__XA_ST_CLIENTID);
struct st_query_data *query = NULL;
if (request->peer != NULL) {
// Record it for the future notification
create_remote_stonith_op(client_id, request->xml, TRUE);
}
/* Delete the DC node RELAY operation. */
remove_relay_op(request->xml);
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
dev = pcmk__xpath_find_one(request->xml->doc,
"//*[@" PCMK__XA_ST_DEVICE_ACTION "]",
LOG_NEVER);
if (dev != NULL) {
const char *device = pcmk__xe_get(dev, PCMK__XA_ST_DEVICE_ID);
if (pcmk__str_eq(device, "manual_ack", pcmk__str_casei)) {
return NULL; // No query or reply necessary
}
target = pcmk__xe_get(dev, PCMK__XA_ST_TARGET);
action = pcmk__xe_get(dev, PCMK__XA_ST_DEVICE_ACTION);
}
crm_log_xml_trace(request->xml, "Query");
query = pcmk__assert_alloc(1, sizeof(struct st_query_data));
query->reply = fenced_construct_reply(request->xml, NULL, &request->result);
query->remote_peer = pcmk__str_copy(request->peer);
query->client_id = pcmk__str_copy(client_id);
query->target = pcmk__str_copy(target);
query->action = pcmk__str_copy(action);
query->call_options = request->call_options;
pcmk__xe_get_int(request->xml, PCMK__XA_ST_TIMEOUT, &timeout);
get_capable_devices(target, action, timeout,
pcmk_is_set(query->call_options,
st_opt_allow_self_fencing),
query, stonith_query_capable_device_cb, fenced_df_none);
return NULL;
}
// STONITH_OP_NOTIFY
static xmlNode *
handle_notify_request(pcmk__request_t *request)
{
const char *flag_name = NULL;
pcmk__assert(request->ipc_client != NULL);
flag_name = pcmk__xe_get(request->xml, PCMK__XA_ST_NOTIFY_ACTIVATE);
if (flag_name != NULL) {
crm_debug("Enabling %s callbacks for client %s",
flag_name, pcmk__request_origin(request));
pcmk__set_client_flags(request->ipc_client,
fenced_parse_notify_flag(flag_name));
}
flag_name = pcmk__xe_get(request->xml, PCMK__XA_ST_NOTIFY_DEACTIVATE);
if (flag_name != NULL) {
crm_debug("Disabling %s callbacks for client %s",
flag_name, pcmk__request_origin(request));
pcmk__clear_client_flags(request->ipc_client,
fenced_parse_notify_flag(flag_name));
}
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
pcmk__set_request_flags(request, pcmk__request_reuse_options);
return pcmk__ipc_create_ack(request->ipc_flags, PCMK__XE_ACK, NULL,
CRM_EX_OK);
}
// STONITH_OP_RELAY
static xmlNode *
handle_relay_request(pcmk__request_t *request)
{
xmlNode *dev = pcmk__xpath_find_one(request->xml->doc,
"//*[@" PCMK__XA_ST_TARGET "]",
LOG_TRACE);
crm_notice("Received forwarded fencing request from "
"%s %s to fence (%s) peer %s",
pcmk__request_origin_type(request),
pcmk__request_origin(request),
pcmk__xe_get(dev, PCMK__XA_ST_DEVICE_ACTION),
pcmk__xe_get(dev, PCMK__XA_ST_TARGET));
if (initiate_remote_stonith_op(NULL, request->xml, FALSE) == NULL) {
set_bad_request_result(&request->result);
return fenced_construct_reply(request->xml, NULL, &request->result);
}
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_PENDING, NULL);
return NULL;
}
// STONITH_OP_FENCE
static xmlNode *
handle_fence_request(pcmk__request_t *request)
{
if (request->peer != NULL) {
fence_locally(request->xml, &request->result);
} else if (pcmk_is_set(request->call_options, st_opt_manual_ack)) {
switch (fenced_handle_manual_confirmation(request->ipc_client,
request->xml)) {
case pcmk_rc_ok:
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE,
NULL);
break;
case EINPROGRESS:
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_PENDING,
NULL);
break;
default:
set_bad_request_result(&request->result);
break;
}
} else {
const char *alternate_host = NULL;
xmlNode *dev = pcmk__xpath_find_one(request->xml->doc,
"//*[@" PCMK__XA_ST_TARGET "]",
LOG_TRACE);
const char *target = pcmk__xe_get(dev, PCMK__XA_ST_TARGET);
const char *action = pcmk__xe_get(dev, PCMK__XA_ST_DEVICE_ACTION);
const char *device = pcmk__xe_get(dev, PCMK__XA_ST_DEVICE_ID);
if (request->ipc_client != NULL) {
int tolerance = 0;
crm_notice("Client %s wants to fence (%s) %s using %s",
pcmk__request_origin(request), action,
target, (device? device : "any device"));
pcmk__xe_get_int(dev, PCMK__XA_ST_TOLERANCE, &tolerance);
if (stonith_check_fence_tolerance(tolerance, target, action)) {
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE,
NULL);
return fenced_construct_reply(request->xml, NULL,
&request->result);
}
alternate_host = check_alternate_host(target);
} else {
crm_notice("Peer %s wants to fence (%s) '%s' with device '%s'",
request->peer, action, target,
(device == NULL)? "(any)" : device);
}
if (alternate_host != NULL) {
const char *client_id = NULL;
remote_fencing_op_t *op = NULL;
pcmk__node_status_t *node =
pcmk__get_node(0, alternate_host, NULL,
pcmk__node_search_cluster_member);
if (request->ipc_client->id == 0) {
client_id = pcmk__xe_get(request->xml, PCMK__XA_ST_CLIENTID);
} else {
client_id = request->ipc_client->id;
}
/* Create a duplicate fencing operation to relay with the client ID.
* When a query response is received, this operation should be
* deleted to avoid keeping the duplicate around.
*/
op = create_remote_stonith_op(client_id, request->xml, FALSE);
pcmk__xe_set(request->xml, PCMK__XA_ST_OP, STONITH_OP_RELAY);
pcmk__xe_set(request->xml, PCMK__XA_ST_CLIENTID,
request->ipc_client->id);
pcmk__xe_set(request->xml, PCMK__XA_ST_REMOTE_OP, op->id);
// @TODO On failure, fail request immediately, or maybe panic
pcmk__cluster_send_message(node, pcmk_ipc_fenced, request->xml);
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_PENDING,
NULL);
} else if (initiate_remote_stonith_op(request->ipc_client, request->xml,
FALSE) == NULL) {
set_bad_request_result(&request->result);
} else {
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_PENDING,
NULL);
}
}
if (request->result.execution_status == PCMK_EXEC_PENDING) {
return NULL;
}
return fenced_construct_reply(request->xml, NULL, &request->result);
}
// STONITH_OP_FENCE_HISTORY
static xmlNode *
handle_history_request(pcmk__request_t *request)
{
xmlNode *reply = NULL;
xmlNode *data = NULL;
stonith_fence_history(request->xml, &data, request->peer,
request->call_options);
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
if (!pcmk_is_set(request->call_options, st_opt_discard_reply)) {
/* When the local node broadcasts its history, it sets
* st_opt_discard_reply and doesn't need a reply.
*/
reply = fenced_construct_reply(request->xml, data, &request->result);
}
pcmk__xml_free(data);
return reply;
}
// STONITH_OP_DEVICE_ADD
static xmlNode *
handle_device_add_request(pcmk__request_t *request)
{
const char *op = pcmk__xe_get(request->xml, PCMK__XA_ST_OP);
xmlNode *dev = pcmk__xpath_find_one(request->xml->doc,
"//" PCMK__XE_ST_DEVICE_ID, LOG_ERR);
if (is_privileged(request->ipc_client, op)) {
int rc = fenced_device_register(dev, false);
rc = pcmk_rc2legacy(rc);
pcmk__set_result(&request->result,
((rc == pcmk_ok)? CRM_EX_OK : CRM_EX_ERROR),
stonith__legacy2status(rc),
((rc == pcmk_ok)? NULL : pcmk_strerror(rc)));
} else {
pcmk__set_result(&request->result, CRM_EX_INSUFFICIENT_PRIV,
PCMK_EXEC_INVALID,
"Unprivileged users must register device via CIB");
}
fenced_send_config_notification(op, &request->result,
(dev == NULL)? NULL : pcmk__xe_id(dev));
return fenced_construct_reply(request->xml, NULL, &request->result);
}
// STONITH_OP_DEVICE_DEL
static xmlNode *
handle_device_delete_request(pcmk__request_t *request)
{
xmlNode *dev = pcmk__xpath_find_one(request->xml->doc,
"//" PCMK__XE_ST_DEVICE_ID, LOG_ERR);
const char *device_id = pcmk__xe_get(dev, PCMK_XA_ID);
const char *op = pcmk__xe_get(request->xml, PCMK__XA_ST_OP);
if (is_privileged(request->ipc_client, op)) {
stonith_device_remove(device_id, false);
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
} else {
pcmk__set_result(&request->result, CRM_EX_INSUFFICIENT_PRIV,
PCMK_EXEC_INVALID,
"Unprivileged users must delete device via CIB");
}
fenced_send_config_notification(op, &request->result, device_id);
return fenced_construct_reply(request->xml, NULL, &request->result);
}
// STONITH_OP_LEVEL_ADD
static xmlNode *
handle_level_add_request(pcmk__request_t *request)
{
const char *op = pcmk__xe_get(request->xml, PCMK__XA_ST_OP);
if (is_privileged(request->ipc_client, op)) {
fenced_register_level(request->xml, &request->result);
} else {
unpack_level_request(request->xml, NULL, NULL, NULL);
pcmk__set_result(&request->result, CRM_EX_INSUFFICIENT_PRIV,
PCMK_EXEC_INVALID,
"Unprivileged users must add level via CIB");
}
return fenced_construct_reply(request->xml, NULL, &request->result);
}
// STONITH_OP_LEVEL_DEL
static xmlNode *
handle_level_delete_request(pcmk__request_t *request)
{
const char *op = pcmk__xe_get(request->xml, PCMK__XA_ST_OP);
if (is_privileged(request->ipc_client, op)) {
fenced_unregister_level(request->xml, &request->result);
} else {
unpack_level_request(request->xml, NULL, NULL, NULL);
pcmk__set_result(&request->result, CRM_EX_INSUFFICIENT_PRIV,
PCMK_EXEC_INVALID,
"Unprivileged users must delete level via CIB");
}
return fenced_construct_reply(request->xml, NULL, &request->result);
}
// CRM_OP_RM_NODE_CACHE
static xmlNode *
handle_cache_request(pcmk__request_t *request)
{
int node_id = 0;
const char *name = NULL;
pcmk__xe_get_int(request->xml, PCMK_XA_ID, &node_id);
name = pcmk__xe_get(request->xml, PCMK_XA_UNAME);
pcmk__cluster_forget_cluster_node(node_id, name);
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
return NULL;
}
static xmlNode *
handle_unknown_request(pcmk__request_t *request)
{
crm_err("Unknown IPC request %s from %s %s",
request->op, pcmk__request_origin_type(request),
pcmk__request_origin(request));
pcmk__format_result(&request->result, CRM_EX_PROTOCOL, PCMK_EXEC_INVALID,
"Unknown IPC request type '%s' (bug?)",
pcmk__s(request->op, ""));
return fenced_construct_reply(request->xml, NULL, &request->result);
}
static void
fenced_register_handlers(void)
{
pcmk__server_command_t handlers[] = {
{ CRM_OP_REGISTER, handle_register_request },
{ STONITH_OP_EXEC, handle_agent_request },
{ STONITH_OP_TIMEOUT_UPDATE, handle_update_timeout_request },
{ STONITH_OP_QUERY, handle_query_request },
{ STONITH_OP_NOTIFY, handle_notify_request },
{ STONITH_OP_RELAY, handle_relay_request },
{ STONITH_OP_FENCE, handle_fence_request },
{ STONITH_OP_FENCE_HISTORY, handle_history_request },
{ STONITH_OP_DEVICE_ADD, handle_device_add_request },
{ STONITH_OP_DEVICE_DEL, handle_device_delete_request },
{ STONITH_OP_LEVEL_ADD, handle_level_add_request },
{ STONITH_OP_LEVEL_DEL, handle_level_delete_request },
{ CRM_OP_RM_NODE_CACHE, handle_cache_request },
{ NULL, handle_unknown_request },
};
fenced_handlers = pcmk__register_handlers(handlers);
}
void
fenced_unregister_handlers(void)
{
if (fenced_handlers != NULL) {
g_hash_table_destroy(fenced_handlers);
fenced_handlers = NULL;
}
}
static void
handle_request(pcmk__request_t *request)
{
xmlNode *reply = NULL;
const char *reason = NULL;
if (fenced_handlers == NULL) {
fenced_register_handlers();
}
reply = pcmk__process_request(request, fenced_handlers);
if (reply != NULL) {
if (pcmk_is_set(request->flags, pcmk__request_reuse_options)
&& (request->ipc_client != NULL)) {
/* Certain IPC-only commands must reuse the call options from the
* original request rather than the ones set by stonith_send_reply()
* -> do_local_reply().
*/
pcmk__ipc_send_xml(request->ipc_client, request->ipc_id, reply,
request->ipc_flags);
request->ipc_client->request_id = 0;
} else {
stonith_send_reply(reply, request->call_options,
request->peer, request->ipc_client);
}
pcmk__xml_free(reply);
}
reason = request->result.exit_reason;
crm_debug("Processed %s request from %s %s: %s%s%s%s",
request->op, pcmk__request_origin_type(request),
pcmk__request_origin(request),
pcmk_exec_status_str(request->result.execution_status),
(reason == NULL)? "" : " (",
(reason == NULL)? "" : reason,
(reason == NULL)? "" : ")");
}
static void
handle_reply(pcmk__client_t *client, xmlNode *request, const char *remote_peer)
{
// Copy, because request might be freed before we want to log this
char *op = pcmk__xe_get_copy(request, PCMK__XA_ST_OP);
if (pcmk__str_eq(op, STONITH_OP_QUERY, pcmk__str_none)) {
process_remote_stonith_query(request);
} else if (pcmk__str_any_of(op, STONITH_OP_NOTIFY, STONITH_OP_FENCE,
NULL)) {
fenced_process_fencing_reply(request);
} else {
crm_err("Ignoring unknown %s reply from %s %s",
pcmk__s(op, "untyped"), ((client == NULL)? "peer" : "client"),
((client == NULL)? remote_peer : pcmk__client_name(client)));
crm_log_xml_warn(request, "UnknownOp");
free(op);
return;
}
crm_debug("Processed %s reply from %s %s",
op, ((client == NULL)? "peer" : "client"),
((client == NULL)? remote_peer : pcmk__client_name(client)));
free(op);
}
/*!
* \internal
* \brief Handle a message from an IPC client or CPG peer
*
* \param[in,out] client If not NULL, IPC client that sent message
* \param[in] id If from IPC client, IPC message ID
* \param[in] flags Message flags
* \param[in,out] message Message XML
* \param[in] remote_peer If not NULL, CPG peer that sent message
*/
void
stonith_command(pcmk__client_t *client, uint32_t id, uint32_t flags,
xmlNode *message, const char *remote_peer)
{
uint32_t call_options = st_opt_none;
int rc = pcmk_rc_ok;
bool is_reply = false;
CRM_CHECK(message != NULL, return);
if (pcmk__xpath_find_one(message->doc, "//" PCMK__XE_ST_REPLY,
LOG_NEVER) != NULL) {
is_reply = true;
}
rc = pcmk__xe_get_flags(message, PCMK__XA_ST_CALLOPT, &call_options,
st_opt_none);
if (rc != pcmk_rc_ok) {
crm_warn("Couldn't parse options from message: %s", pcmk_rc_str(rc));
}
crm_debug("Processing %ssynchronous %s %s %u from %s %s",
pcmk_is_set(call_options, st_opt_sync_call)? "" : "a",
pcmk__xe_get(message, PCMK__XA_ST_OP),
(is_reply? "reply" : "request"), id,
((client == NULL)? "peer" : "client"),
((client == NULL)? remote_peer : pcmk__client_name(client)));
if (pcmk_is_set(call_options, st_opt_sync_call)) {
pcmk__assert((client == NULL) || (client->request_id == id));
}
if (is_reply) {
handle_reply(client, message, remote_peer);
} else {
pcmk__request_t request = {
.ipc_client = client,
.ipc_id = id,
.ipc_flags = flags,
.peer = remote_peer,
.xml = message,
.call_options = call_options,
.result = PCMK__UNKNOWN_RESULT,
};
request.op = pcmk__xe_get_copy(request.xml, PCMK__XA_ST_OP);
CRM_CHECK(request.op != NULL, return);
if (pcmk_is_set(request.call_options, st_opt_sync_call)) {
pcmk__set_request_flags(&request, pcmk__request_sync);
}
handle_request(&request);
pcmk__reset_request(&request);
}
}
diff --git a/include/crm/common/agents.h b/include/crm/common/agents.h
index c57d522cc1..9f478a2d82 100644
--- a/include/crm/common/agents.h
+++ b/include/crm/common/agents.h
@@ -1,76 +1,77 @@
/*
* Copyright 2017-2025 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.
*/
#ifndef PCMK__CRM_COMMON_AGENTS__H
#define PCMK__CRM_COMMON_AGENTS__H
#ifdef __cplusplus
extern "C" {
#endif
/**
* \file
* \brief API related to resource agents
* \ingroup core
*/
#include <stdint.h> // uint32_t
#include <stdbool.h>
// Known (not necessarily supported) resource classes
#define PCMK_RESOURCE_CLASS_OCF "ocf"
#define PCMK_RESOURCE_CLASS_SERVICE "service"
#define PCMK_RESOURCE_CLASS_LSB "lsb"
#define PCMK_RESOURCE_CLASS_SYSTEMD "systemd"
#define PCMK_RESOURCE_CLASS_STONITH "stonith"
#define PCMK_RESOURCE_CLASS_ALERT "alert"
/* Special stonith-class agent parameters interpreted directly by Pacemaker
* (not including the pcmk_ACTION_{action,retries,timeout} parameters)
*/
#define PCMK_FENCING_ACTION_LIMIT "pcmk_action_limit"
#define PCMK_FENCING_DELAY_BASE "pcmk_delay_base"
#define PCMK_FENCING_DELAY_MAX "pcmk_delay_max"
#define PCMK_FENCING_HOST_ARGUMENT "pcmk_host_argument"
#define PCMK_FENCING_HOST_CHECK "pcmk_host_check"
#define PCMK_FENCING_HOST_LIST "pcmk_host_list"
-#define PCMK_STONITH_HOST_MAP "pcmk_host_map"
+#define PCMK_FENCING_HOST_MAP "pcmk_host_map"
+#define PCMK_STONITH_HOST_MAP PCMK_FENCING_HOST_MAP
#define PCMK_STONITH_PROVIDES "provides"
#define PCMK_STONITH_STONITH_TIMEOUT "stonith-timeout"
// OCF Resource Agent API standard version that this Pacemaker supports
#define PCMK_OCF_MAJOR_VERSION "1"
#define PCMK_OCF_MINOR_VERSION "1"
#define PCMK_OCF_VERSION PCMK_OCF_MAJOR_VERSION "." PCMK_OCF_MINOR_VERSION
// Capabilities supported by a resource agent standard
enum pcmk_ra_caps {
pcmk_ra_cap_none = 0U,
pcmk_ra_cap_provider = (1U << 0), // Requires provider
pcmk_ra_cap_status = (1U << 1), // Supports status instead of monitor
pcmk_ra_cap_params = (1U << 2), // Supports parameters
pcmk_ra_cap_unique = (1U << 3), // Supports unique clones
pcmk_ra_cap_promotable = (1U << 4), // Supports promotable clones
pcmk_ra_cap_stdin = (1U << 5), // Reads from standard input
pcmk_ra_cap_fence_params = (1U << 6), // Supports pcmk_monitor_timeout, etc.
pcmk_ra_cap_cli_exec = (1U << 7), // Supports execution by crm_resource
};
uint32_t pcmk_get_ra_caps(const char *standard);
char *crm_generate_ra_key(const char *standard, const char *provider,
const char *type);
int crm_parse_agent_spec(const char *spec, char **standard, char **provider,
char **type);
bool pcmk_stonith_param(const char *param);
#ifdef __cplusplus
}
#endif
#endif // PCMK__CRM_COMMON_AGENTS__H
diff --git a/lib/common/agents.c b/lib/common/agents.c
index 484dd53622..91d7e1456c 100644
--- a/lib/common/agents.c
+++ b/lib/common/agents.c
@@ -1,193 +1,193 @@
/*
* Copyright 2004-2025 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 <stdio.h>
#include <string.h>
#include <strings.h>
#include <glib.h> // g_str_has_prefix()
#include <crm/crm.h>
#include <crm/common/util.h>
/*!
* \brief Get capabilities of a resource agent standard
*
* \param[in] standard Standard name
*
* \return Bitmask of enum pcmk_ra_caps values
*/
uint32_t
pcmk_get_ra_caps(const char *standard)
{
/* @COMPAT This should probably be case-sensitive, but isn't,
* for backward compatibility.
*/
if (standard == NULL) {
return pcmk_ra_cap_none;
} else if (!strcasecmp(standard, PCMK_RESOURCE_CLASS_OCF)) {
return pcmk_ra_cap_provider | pcmk_ra_cap_params
| pcmk_ra_cap_unique | pcmk_ra_cap_promotable
| pcmk_ra_cap_cli_exec;
} else if (!strcasecmp(standard, PCMK_RESOURCE_CLASS_STONITH)) {
/* @COMPAT Stonith resources can't really be unique clones, but we've
* allowed it in the past and have it in some scheduler regression tests
* (which were likely never used as real configurations).
*
* @TODO Remove pcmk_ra_cap_unique at the next major schema version
* bump, with a transform to remove PCMK_META_GLOBALLY_UNIQUE from the
* config.
*/
return pcmk_ra_cap_params | pcmk_ra_cap_unique | pcmk_ra_cap_stdin
| pcmk_ra_cap_fence_params;
} else if (!strcasecmp(standard, PCMK_RESOURCE_CLASS_LSB)) {
return pcmk_ra_cap_status | pcmk_ra_cap_cli_exec;
} else if (!strcasecmp(standard, PCMK_RESOURCE_CLASS_SYSTEMD)
|| !strcasecmp(standard, PCMK_RESOURCE_CLASS_SERVICE)) {
return pcmk_ra_cap_status;
}
return pcmk_ra_cap_none;
}
int
pcmk__effective_rc(int rc)
{
int remapped_rc = rc;
switch (rc) {
case PCMK_OCF_DEGRADED:
remapped_rc = PCMK_OCF_OK;
break;
case PCMK_OCF_DEGRADED_PROMOTED:
remapped_rc = PCMK_OCF_RUNNING_PROMOTED;
break;
default:
break;
}
return remapped_rc;
}
char *
crm_generate_ra_key(const char *standard, const char *provider,
const char *type)
{
bool std_empty = pcmk__str_empty(standard);
bool prov_empty = pcmk__str_empty(provider);
bool ty_empty = pcmk__str_empty(type);
if (std_empty || ty_empty) {
return NULL;
}
return crm_strdup_printf("%s%s%s:%s",
standard,
(prov_empty ? "" : ":"), (prov_empty ? "" : provider),
type);
}
/*!
* \brief Parse a "standard[:provider]:type" agent specification
*
* \param[in] spec Agent specification
* \param[out] standard Newly allocated memory containing agent standard (or NULL)
* \param[out] provider Newly allocated memory containing agent provider (or NULL)
* \param[put] type Newly allocated memory containing agent type (or NULL)
*
* \return pcmk_ok if the string could be parsed, -EINVAL otherwise
*
* \note It is acceptable for the type to contain a ':' if the standard supports
* that. For example, systemd supports the form "systemd:UNIT@A:B".
* \note It is the caller's responsibility to free the returned values.
*/
int
crm_parse_agent_spec(const char *spec, char **standard, char **provider,
char **type)
{
char *colon;
CRM_CHECK(spec && standard && provider && type, return -EINVAL);
*standard = NULL;
*provider = NULL;
*type = NULL;
colon = strchr(spec, ':');
if ((colon == NULL) || (colon == spec)) {
return -EINVAL;
}
*standard = strndup(spec, colon - spec);
spec = colon + 1;
if (pcmk_is_set(pcmk_get_ra_caps(*standard), pcmk_ra_cap_provider)) {
colon = strchr(spec, ':');
if ((colon == NULL) || (colon == spec)) {
free(*standard);
return -EINVAL;
}
*provider = strndup(spec, colon - spec);
spec = colon + 1;
}
if (*spec == '\0') {
free(*standard);
free(*provider);
return -EINVAL;
}
*type = strdup(spec);
return pcmk_ok;
}
/*!
* \brief Check whether a given stonith parameter is handled by Pacemaker
*
* Return true if a given string is the name of one of the special resource
* instance attributes interpreted directly by Pacemaker for stonith-class
* resources.
*
* \param[in] param Parameter name to check
*
* \return true if \p param is a special fencing parameter
*/
bool
pcmk_stonith_param(const char *param)
{
if (param == NULL) {
return false;
}
if (pcmk__str_any_of(param, PCMK_STONITH_PROVIDES,
PCMK_STONITH_STONITH_TIMEOUT, NULL)) {
return true;
}
if (!g_str_has_prefix(param, "pcmk_")) { // Short-circuit common case
return false;
}
if (pcmk__str_any_of(param,
PCMK_FENCING_ACTION_LIMIT,
PCMK_FENCING_DELAY_BASE,
PCMK_FENCING_DELAY_MAX,
PCMK_FENCING_HOST_ARGUMENT,
PCMK_FENCING_HOST_CHECK,
PCMK_FENCING_HOST_LIST,
- PCMK_STONITH_HOST_MAP,
+ PCMK_FENCING_HOST_MAP,
NULL)) {
return true;
}
param = strchr(param + 5, '_'); // Skip past "pcmk_ACTION"
return pcmk__str_any_of(param, "_action", "_timeout", "_retries", NULL);
}
diff --git a/lib/common/options.c b/lib/common/options.c
index a9c5b9041c..b174231be6 100644
--- a/lib/common/options.c
+++ b/lib/common/options.c
@@ -1,1534 +1,1534 @@
/*
* Copyright 2004-2025 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 <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <crm/crm.h>
#include <crm/common/xml.h>
/*
* Option metadata
*/
static const pcmk__cluster_option_t cluster_options[] = {
/* name, old name, type, allowed values,
* default value, validator,
* flags,
* short description,
* long description
*/
{
PCMK_OPT_DC_VERSION, NULL, PCMK_VALUE_VERSION, NULL,
NULL, NULL,
pcmk__opt_controld|pcmk__opt_generated,
N_("Pacemaker version on cluster node elected Designated Controller "
"(DC)"),
N_("Includes a hash which identifies the exact revision the code was "
"built from. Used for diagnostic purposes."),
},
{
PCMK_OPT_CLUSTER_INFRASTRUCTURE, NULL, PCMK_VALUE_STRING, NULL,
NULL, NULL,
pcmk__opt_controld|pcmk__opt_generated,
N_("The messaging layer on which Pacemaker is currently running"),
N_("Used for informational and diagnostic purposes."),
},
{
PCMK_OPT_CLUSTER_NAME, NULL, PCMK_VALUE_STRING, NULL,
NULL, NULL,
pcmk__opt_controld,
N_("An arbitrary name for the cluster"),
N_("This optional value is mostly for users' convenience as desired "
"in administration, but may also be used in Pacemaker "
"configuration rules via the #cluster-name node attribute, and "
"by higher-level tools and resource agents."),
},
{
PCMK_OPT_DC_DEADTIME, NULL, PCMK_VALUE_DURATION, NULL,
"20s", pcmk__valid_interval_spec,
pcmk__opt_controld,
N_("How long to wait for a response from other nodes during start-up"),
N_("The optimal value will depend on the speed and load of your "
"network and the type of switches used."),
},
{
PCMK_OPT_CLUSTER_RECHECK_INTERVAL, NULL, PCMK_VALUE_DURATION, NULL,
"15min", pcmk__valid_interval_spec,
pcmk__opt_controld,
N_("Polling interval to recheck cluster state and evaluate rules "
"with date specifications"),
N_("Pacemaker is primarily event-driven, and looks ahead to know when "
"to recheck cluster state for failure-timeout settings and most "
"time-based rules. However, it will also recheck the cluster after "
"this amount of inactivity, to evaluate rules with date "
"specifications and serve as a fail-safe for certain types of "
"scheduler bugs. A value of 0 disables polling. A positive value "
"sets an interval in seconds, unless other units are specified "
"(for example, \"5min\")."),
},
{
PCMK_OPT_ELECTION_TIMEOUT, NULL, PCMK_VALUE_DURATION, NULL,
"2min", pcmk__valid_interval_spec,
pcmk__opt_controld|pcmk__opt_advanced,
N_("Declare an election failed if it is not decided within this much "
"time. If you need to adjust this value, it probably indicates "
"the presence of a bug."),
NULL,
},
{
PCMK_OPT_SHUTDOWN_ESCALATION, NULL, PCMK_VALUE_DURATION, NULL,
"20min", pcmk__valid_interval_spec,
pcmk__opt_controld|pcmk__opt_advanced,
N_("Exit immediately if shutdown does not complete within this much "
"time. If you need to adjust this value, it probably indicates "
"the presence of a bug."),
NULL,
},
{
PCMK_OPT_JOIN_INTEGRATION_TIMEOUT, NULL, PCMK_VALUE_DURATION, NULL,
"3min", pcmk__valid_interval_spec,
pcmk__opt_controld|pcmk__opt_advanced,
N_("If you need to adjust this value, it probably indicates "
"the presence of a bug."),
NULL,
},
{
PCMK_OPT_JOIN_FINALIZATION_TIMEOUT, NULL, PCMK_VALUE_DURATION, NULL,
"30min", pcmk__valid_interval_spec,
pcmk__opt_controld|pcmk__opt_advanced,
N_("If you need to adjust this value, it probably indicates "
"the presence of a bug."),
NULL,
},
{
PCMK_OPT_TRANSITION_DELAY, NULL, PCMK_VALUE_DURATION, NULL,
"0s", pcmk__valid_interval_spec,
pcmk__opt_controld|pcmk__opt_advanced,
N_("Enabling this option will slow down cluster recovery under all "
"conditions"),
N_("Delay cluster recovery for this much time to allow for additional "
"events to occur. Useful if your configuration is sensitive to "
"the order in which ping updates arrive."),
},
{
PCMK_OPT_NO_QUORUM_POLICY, NULL, PCMK_VALUE_SELECT,
PCMK_VALUE_STOP ", " PCMK_VALUE_FREEZE ", " PCMK_VALUE_IGNORE
", " PCMK_VALUE_DEMOTE ", " PCMK_VALUE_FENCE ", "
PCMK_VALUE_FENCE_LEGACY,
PCMK_VALUE_STOP, pcmk__valid_no_quorum_policy,
pcmk__opt_schedulerd,
N_("What to do when the cluster does not have quorum"),
NULL,
},
{
PCMK_OPT_SHUTDOWN_LOCK, NULL, PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_FALSE, pcmk__valid_boolean,
pcmk__opt_schedulerd,
N_("Whether to lock resources to a cleanly shut down node"),
N_("When true, resources active on a node when it is cleanly shut down "
"are kept \"locked\" to that node (not allowed to run elsewhere) "
"until they start again on that node after it rejoins (or for at "
"most shutdown-lock-limit, if set). Stonith resources and "
"Pacemaker Remote connections are never locked. Clone and bundle "
"instances and the promoted role of promotable clones are "
"currently never locked, though support could be added in a future "
"release."),
},
{
PCMK_OPT_SHUTDOWN_LOCK_LIMIT, NULL, PCMK_VALUE_DURATION, NULL,
"0", pcmk__valid_interval_spec,
pcmk__opt_schedulerd,
N_("Do not lock resources to a cleanly shut down node longer than "
"this"),
N_("If shutdown-lock is true and this is set to a nonzero time "
"duration, shutdown locks will expire after this much time has "
"passed since the shutdown was initiated, even if the node has not "
"rejoined."),
},
{
PCMK_OPT_ENABLE_ACL, NULL, PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_FALSE, pcmk__valid_boolean,
pcmk__opt_based,
N_("Enable Access Control Lists (ACLs) for the CIB"),
NULL,
},
{
PCMK_OPT_SYMMETRIC_CLUSTER, NULL, PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_TRUE, pcmk__valid_boolean,
pcmk__opt_schedulerd,
N_("Whether resources can run on any node by default"),
NULL,
},
{
PCMK_OPT_MAINTENANCE_MODE, NULL, PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_FALSE, pcmk__valid_boolean,
pcmk__opt_schedulerd,
N_("Whether the cluster should refrain from monitoring, starting, and "
"stopping resources"),
NULL,
},
{
PCMK_OPT_START_FAILURE_IS_FATAL, NULL, PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_TRUE, pcmk__valid_boolean,
pcmk__opt_schedulerd,
N_("Whether a start failure should prevent a resource from being "
"recovered on the same node"),
N_("When true, the cluster will immediately ban a resource from a node "
"if it fails to start there. When false, the cluster will instead "
"check the resource's fail count against its migration-threshold.")
},
{
PCMK_OPT_ENABLE_STARTUP_PROBES, NULL, PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_TRUE, pcmk__valid_boolean,
pcmk__opt_schedulerd,
N_("Whether the cluster should check for active resources during "
"start-up"),
NULL,
},
// Fencing-related options
{
PCMK_OPT_FENCE_REMOTE_WITHOUT_QUORUM, NULL, PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_FALSE, pcmk__valid_boolean,
pcmk__opt_schedulerd|pcmk__opt_advanced,
N_("Whether remote nodes can be fenced without quorum"),
N_("By default, an inquorate node can not fence Pacemaker Remote nodes "
"that are part of its partition as long as the cluster thinks they "
"can be restarted. If true, inquorate nodes will be able to fence "
"remote nodes regardless."),
},
{
PCMK_OPT_FENCING_ENABLED, PCMK_OPT_STONITH_ENABLED, PCMK_VALUE_BOOLEAN,
NULL,
PCMK_VALUE_TRUE, pcmk__valid_boolean,
pcmk__opt_schedulerd|pcmk__opt_advanced,
N_("Whether nodes may be fenced as part of recovery"),
N_("If false, unresponsive nodes are immediately assumed to be "
"harmless, and resources that were active on them may be recovered "
"elsewhere. This can result in a \"split-brain\" situation, "
"potentially leading to data loss and/or service unavailability."),
},
{
PCMK_OPT_FENCING_ACTION, PCMK_OPT_STONITH_ACTION, PCMK_VALUE_SELECT,
PCMK_ACTION_REBOOT ", " PCMK_ACTION_OFF,
PCMK_ACTION_REBOOT, pcmk__is_fencing_action,
pcmk__opt_schedulerd,
N_("Action to send to fence device when a node needs to be fenced"),
NULL,
},
{
PCMK_OPT_FENCING_REACTION, PCMK_OPT_FENCE_REACTION, PCMK_VALUE_SELECT,
PCMK_VALUE_STOP ", " PCMK_VALUE_PANIC,
PCMK_VALUE_STOP, NULL,
pcmk__opt_controld,
N_("How a cluster node should react if notified of its own fencing"),
N_("A cluster node may receive notification of a \"succeeded\" "
"fencing that targeted it if fencing is misconfigured, or if "
"fabric fencing is in use that doesn't cut cluster communication. "
"Use \"stop\" to attempt to immediately stop Pacemaker and stay "
"stopped, or \"panic\" to attempt to immediately reboot the local "
"node, falling back to stop on failure."),
},
{
PCMK_OPT_FENCING_TIMEOUT, PCMK_OPT_STONITH_TIMEOUT, PCMK_VALUE_DURATION,
NULL,
"60s", pcmk__valid_interval_spec,
pcmk__opt_schedulerd,
N_("How long to wait for on, off, and reboot fence actions to complete "
"by default"),
NULL,
},
{
PCMK_OPT_HAVE_WATCHDOG, NULL, PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_FALSE, pcmk__valid_boolean,
pcmk__opt_schedulerd|pcmk__opt_generated,
N_("Whether watchdog integration is enabled"),
N_("This is set automatically by the cluster according to whether SBD "
"is detected to be in use. User-configured values are ignored. "
"The value `true` is meaningful if diskless SBD is used and "
"`fencing-watchdog-timeout` is nonzero. In that case, if fencing "
"is required, watchdog-based self-fencing will be performed via "
"SBD without requiring a fencing resource explicitly configured."),
},
{
/* @COMPAT Currently, unparsable values default to -1 (auto-calculate),
* while missing values default to 0 (disable). All values are accepted
* (unless the controller finds that the value conflicts with the
* SBD_WATCHDOG_TIMEOUT).
*
* At a compatibility break: properly validate as a timeout, let
* either negative values or a particular string like "auto" mean auto-
* calculate, and use 0 as the single default for when the option either
* is unset or fails to validate.
*/
PCMK_OPT_FENCING_WATCHDOG_TIMEOUT, PCMK_OPT_STONITH_WATCHDOG_TIMEOUT,
PCMK_VALUE_TIMEOUT, NULL,
"0", NULL,
pcmk__opt_controld,
N_("How long before nodes can be assumed to be safely down when "
"watchdog-based self-fencing via SBD is in use"),
N_("If this is set to a positive value, lost nodes are assumed to "
"achieve self-fencing using watchdog-based SBD within this much "
"time. This does not require a fencing resource to be explicitly "
"configured, though a fence_watchdog resource can be configured, to "
"limit use to specific nodes. If this is set to 0 (the default), "
"the cluster will never assume watchdog-based self-fencing. If this "
"is set to a negative value, the cluster will use twice the local "
"value of the `SBD_WATCHDOG_TIMEOUT` environment variable if that "
"is positive, or otherwise treat this as 0. WARNING: When used, "
"this timeout must be larger than `SBD_WATCHDOG_TIMEOUT` on all "
"nodes that use watchdog-based SBD, and Pacemaker will refuse to "
"start on any of those nodes where this is not true for the local "
"value or SBD is not active. When this is set to a negative value, "
"`SBD_WATCHDOG_TIMEOUT` must be set to the same value on all nodes "
"that use SBD, otherwise data corruption or loss could occur."),
},
{
PCMK_OPT_FENCING_MAX_ATTEMPTS, PCMK_OPT_STONITH_MAX_ATTEMPTS,
PCMK_VALUE_SCORE, NULL,
"10", pcmk__valid_positive_int,
pcmk__opt_controld,
N_("How many times fencing can fail before it will no longer be "
"immediately re-attempted on a target"),
NULL,
},
{
PCMK_OPT_CONCURRENT_FENCING, NULL, PCMK_VALUE_BOOLEAN, NULL,
#if PCMK__CONCURRENT_FENCING_DEFAULT_TRUE
PCMK_VALUE_TRUE,
#else
PCMK_VALUE_FALSE,
#endif
pcmk__valid_boolean,
pcmk__opt_schedulerd|pcmk__opt_deprecated,
N_("Allow performing fencing operations in parallel"),
NULL,
},
{
PCMK_OPT_STARTUP_FENCING, NULL, PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_TRUE, pcmk__valid_boolean,
pcmk__opt_schedulerd|pcmk__opt_advanced,
N_("Whether to fence unseen nodes at start-up"),
N_("Setting this to false may lead to a \"split-brain\" situation, "
"potentially leading to data loss and/or service unavailability."),
},
{
PCMK_OPT_PRIORITY_FENCING_DELAY, NULL, PCMK_VALUE_DURATION, NULL,
"0", pcmk__valid_interval_spec,
pcmk__opt_schedulerd,
N_("Apply fencing delay targeting the lost nodes with the highest "
"total resource priority"),
N_("Apply specified delay for the fencings that are targeting the lost "
"nodes with the highest total resource priority in case we don't "
"have the majority of the nodes in our cluster partition, so that "
"the more significant nodes potentially win any fencing match, "
"which is especially meaningful under split-brain of 2-node "
"cluster. A promoted resource instance takes the base priority + 1 "
"on calculation if the base priority is not 0. Any static/random "
"delays that are introduced by `pcmk_delay_base/max` configured "
"for the corresponding fencing resources will be added to this "
"delay. This delay should be significantly greater than, safely "
"twice, the maximum `pcmk_delay_base/max`. By default, priority "
"fencing delay is disabled."),
},
{
PCMK_OPT_NODE_PENDING_TIMEOUT, NULL, PCMK_VALUE_DURATION, NULL,
"0", pcmk__valid_interval_spec,
pcmk__opt_schedulerd,
N_("How long to wait for a node that has joined the cluster to join "
"the controller process group"),
N_("Fence nodes that do not join the controller process group within "
"this much time after joining the cluster, to allow the cluster "
"to continue managing resources. A value of 0 means never fence "
"pending nodes. Setting the value to 2h means fence nodes after "
"2 hours."),
},
{
PCMK_OPT_CLUSTER_DELAY, NULL, PCMK_VALUE_DURATION, NULL,
"60s", pcmk__valid_interval_spec,
pcmk__opt_schedulerd,
N_("Maximum time for node-to-node communication"),
N_("The node elected Designated Controller (DC) will consider an action "
"failed if it does not get a response from the node executing the "
"action within this time (after considering the action's own "
"timeout). The \"correct\" value will depend on the speed and "
"load of your network and cluster nodes.")
},
// Limits
{
PCMK_OPT_LOAD_THRESHOLD, NULL, PCMK_VALUE_PERCENTAGE, NULL,
"80%", pcmk__valid_percentage,
pcmk__opt_controld,
N_("Maximum amount of system load that should be used by cluster "
"nodes"),
N_("The cluster will slow down its recovery process when the amount of "
"system resources used (currently CPU) approaches this limit"),
},
{
PCMK_OPT_NODE_ACTION_LIMIT, NULL, PCMK_VALUE_INTEGER, NULL,
"0", pcmk__valid_int,
pcmk__opt_controld,
N_("Maximum number of jobs that can be scheduled per node (defaults to "
"2x cores)"),
NULL,
},
{
PCMK_OPT_BATCH_LIMIT, NULL, PCMK_VALUE_INTEGER, NULL,
"0", pcmk__valid_int,
pcmk__opt_schedulerd,
N_("Maximum number of jobs that the cluster may execute in parallel "
"across all nodes"),
N_("The \"correct\" value will depend on the speed and load of your "
"network and cluster nodes. If set to 0, the cluster will "
"impose a dynamically calculated limit when any node has a "
"high load."),
},
{
PCMK_OPT_MIGRATION_LIMIT, NULL, PCMK_VALUE_INTEGER, NULL,
"-1", pcmk__valid_int,
pcmk__opt_schedulerd,
N_("The number of live migration actions that the cluster is allowed "
"to execute in parallel on a node (-1 means no limit)"),
NULL,
},
{
/* @TODO This is actually ignored if not strictly positive. We should
* overhaul value types in Pacemaker Explained. There are lots of
* inaccurate ranges (assumptions of 32-bit width, "nonnegative" when
* positive is required, etc.).
*
* Maybe a single integer type with the allowed range specified would be
* better.
*
* Drop the PCMK_VALUE_NONNEGATIVE_INTEGER constant if we do this before
* a release.
*/
PCMK_OPT_CLUSTER_IPC_LIMIT, NULL, PCMK_VALUE_NONNEGATIVE_INTEGER, NULL,
"500", pcmk__valid_positive_int,
pcmk__opt_based,
N_("Maximum IPC message backlog before disconnecting a cluster daemon"),
N_("Raise this if log has \"Evicting client\" messages for cluster "
"daemon PIDs (a good value is the number of resources in the "
"cluster multiplied by the number of nodes)."),
},
// Stopping resources and removed resources
{
PCMK_OPT_STOP_ALL_RESOURCES, NULL, PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_FALSE, pcmk__valid_boolean,
pcmk__opt_schedulerd,
N_("Whether the cluster should stop all active resources"),
NULL,
},
{
PCMK_OPT_STOP_REMOVED_RESOURCES, PCMK_OPT_STOP_ORPHAN_RESOURCES,
PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_TRUE, pcmk__valid_boolean,
pcmk__opt_schedulerd,
N_("Whether to stop resources that were removed from the "
"configuration"),
NULL,
},
{
PCMK_OPT_STOP_REMOVED_ACTIONS, PCMK_OPT_STOP_ORPHAN_ACTIONS,
PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_TRUE, pcmk__valid_boolean,
pcmk__opt_schedulerd,
N_("Whether to cancel recurring actions removed from the "
"configuration"),
NULL,
},
// Storing inputs
{
PCMK_OPT_PE_ERROR_SERIES_MAX, NULL, PCMK_VALUE_INTEGER, NULL,
"-1", pcmk__valid_int,
pcmk__opt_schedulerd,
N_("The number of scheduler inputs resulting in errors to save"),
N_("Zero to disable, -1 to store unlimited."),
},
{
PCMK_OPT_PE_WARN_SERIES_MAX, NULL, PCMK_VALUE_INTEGER, NULL,
"5000", pcmk__valid_int,
pcmk__opt_schedulerd,
N_("The number of scheduler inputs resulting in warnings to save"),
N_("Zero to disable, -1 to store unlimited."),
},
{
PCMK_OPT_PE_INPUT_SERIES_MAX, NULL, PCMK_VALUE_INTEGER, NULL,
"4000", pcmk__valid_int,
pcmk__opt_schedulerd,
N_("The number of scheduler inputs without errors or warnings to save"),
N_("Zero to disable, -1 to store unlimited."),
},
// Node health
{
PCMK_OPT_NODE_HEALTH_STRATEGY, NULL, PCMK_VALUE_SELECT,
PCMK_VALUE_NONE ", " PCMK_VALUE_MIGRATE_ON_RED ", "
PCMK_VALUE_ONLY_GREEN ", " PCMK_VALUE_PROGRESSIVE ", "
PCMK_VALUE_CUSTOM,
PCMK_VALUE_NONE, pcmk__validate_health_strategy,
pcmk__opt_schedulerd,
N_("How cluster should react to node health attributes"),
N_("Requires external entities to create node attributes (named with "
"the prefix \"#health\") with values \"red\", \"yellow\", or "
"\"green\".")
},
{
PCMK_OPT_NODE_HEALTH_BASE, NULL, PCMK_VALUE_SCORE, NULL,
"0", pcmk__valid_int,
pcmk__opt_schedulerd,
N_("Base health score assigned to a node"),
N_("Only used when \"node-health-strategy\" is set to "
"\"progressive\"."),
},
{
PCMK_OPT_NODE_HEALTH_GREEN, NULL, PCMK_VALUE_SCORE, NULL,
"0", pcmk__valid_int,
pcmk__opt_schedulerd,
N_("The score to use for a node health attribute whose value is "
"\"green\""),
N_("Only used when \"node-health-strategy\" is set to \"custom\" or "
"\"progressive\"."),
},
{
PCMK_OPT_NODE_HEALTH_YELLOW, NULL, PCMK_VALUE_SCORE, NULL,
"0", pcmk__valid_int,
pcmk__opt_schedulerd,
N_("The score to use for a node health attribute whose value is "
"\"yellow\""),
N_("Only used when \"node-health-strategy\" is set to \"custom\" or "
"\"progressive\"."),
},
{
PCMK_OPT_NODE_HEALTH_RED, NULL, PCMK_VALUE_SCORE, NULL,
"-INFINITY", pcmk__valid_int,
pcmk__opt_schedulerd,
N_("The score to use for a node health attribute whose value is "
"\"red\""),
N_("Only used when \"node-health-strategy\" is set to \"custom\" or "
"\"progressive\".")
},
// Placement strategy
{
PCMK_OPT_PLACEMENT_STRATEGY, NULL, PCMK_VALUE_SELECT,
PCMK_VALUE_DEFAULT ", " PCMK_VALUE_UTILIZATION ", "
PCMK_VALUE_MINIMAL ", " PCMK_VALUE_BALANCED,
PCMK_VALUE_DEFAULT, pcmk__valid_placement_strategy,
pcmk__opt_schedulerd,
N_("How the cluster should allocate resources to nodes"),
NULL,
},
{ NULL, },
};
static const pcmk__cluster_option_t fencing_params[] = {
/* name, old name, type, allowed values,
* default value, validator,
* flags,
* short description,
* long description
*/
{
PCMK_FENCING_HOST_ARGUMENT, NULL, PCMK_VALUE_STRING, NULL,
NULL, NULL,
pcmk__opt_advanced,
N_("Name of agent parameter that should be set to the fencing target"),
N_("If the fencing agent metadata advertises support for the \"port\" "
"or \"plug\" parameter, that will be used as the default, "
"otherwise \"none\" will be used, which tells the cluster not to "
"supply any additional parameters."),
},
{
- PCMK_STONITH_HOST_MAP, NULL, PCMK_VALUE_STRING, NULL,
+ PCMK_FENCING_HOST_MAP, NULL, PCMK_VALUE_STRING, NULL,
NULL, NULL,
pcmk__opt_none,
N_("A mapping of node names to port numbers for devices that do not "
"support node names."),
N_("For example, \"node1:1;node2:2,3\" would tell the cluster to use "
"port 1 for node1 and ports 2 and 3 for node2."),
},
{
PCMK_FENCING_HOST_LIST, NULL, PCMK_VALUE_STRING, NULL,
NULL, NULL,
pcmk__opt_none,
N_("Nodes targeted by this device"),
N_("Comma-separated list of nodes that can be targeted by this device "
"(for example, \"node1,node2,node3\"). If pcmk_host_check is "
"\"static-list\", either this or pcmk_host_map must be set."),
},
{
PCMK_FENCING_HOST_CHECK, NULL, PCMK_VALUE_SELECT,
PCMK_VALUE_DYNAMIC_LIST ", " PCMK_VALUE_STATIC_LIST ", "
PCMK_VALUE_STATUS ", " PCMK_VALUE_NONE,
NULL, NULL,
pcmk__opt_none,
N_("How to determine which nodes can be targeted by the device"),
N_("Use \"dynamic-list\" to query the device via the 'list' command; "
"\"static-list\" to check the pcmk_host_list attribute; "
"\"status\" to query the device via the 'status' command; or "
"\"none\" to assume every device can fence every node. "
"The default value is \"static-list\" if pcmk_host_map or "
"pcmk_host_list is set; otherwise \"dynamic-list\" if the device "
"supports the list operation; otherwise \"status\" if the device "
"supports the status operation; otherwise \"none\""),
},
{
PCMK_FENCING_DELAY_MAX, NULL, PCMK_VALUE_DURATION, NULL,
"0s", NULL,
pcmk__opt_none,
N_("Enable a delay of no more than the time specified before executing "
"fencing actions."),
N_("Enable a delay of no more than the time specified before executing "
"fencing actions. Pacemaker derives the overall delay by taking "
"the value of pcmk_delay_base and adding a random delay value such "
"that the sum is kept below this maximum."),
},
{
PCMK_FENCING_DELAY_BASE, NULL, PCMK_VALUE_STRING, NULL,
"0s", NULL,
pcmk__opt_none,
N_("Enable a base delay for fencing actions and specify base delay "
"value."),
N_("This enables a static delay for fencing actions, which can help "
"avoid \"death matches\" where two nodes try to fence each other "
"at the same time. If pcmk_delay_max is also used, a random delay "
"will be added such that the total delay is kept below that value. "
"This can be set to a single time value to apply to any node "
"targeted by this device (useful if a separate device is "
"configured for each target), or to a node map (for example, "
"\"node1:1s;node2:5\") to set a different value for each target."),
},
{
PCMK_FENCING_ACTION_LIMIT, NULL, PCMK_VALUE_INTEGER, NULL,
"1", NULL,
pcmk__opt_none,
N_("The maximum number of actions can be performed in parallel on this "
"device"),
N_("If the concurrent-fencing cluster property is \"true\", this "
"specifies the maximum number of actions that can be performed in "
"parallel on this device. A value of -1 means unlimited."),
},
{
"pcmk_reboot_action", NULL, PCMK_VALUE_STRING, NULL,
PCMK_ACTION_REBOOT, NULL,
pcmk__opt_advanced,
N_("An alternate command to run instead of 'reboot'"),
N_("Some devices do not support the standard commands or may provide "
"additional ones. Use this to specify an alternate, device-"
"specific, command that implements the 'reboot' action."),
},
{
"pcmk_reboot_timeout", NULL, PCMK_VALUE_TIMEOUT, NULL,
"60s", NULL,
pcmk__opt_advanced,
N_("Specify an alternate timeout to use for 'reboot' actions instead "
"of fencing-timeout"),
N_("Some devices need much more/less time to complete than normal. "
"Use this to specify an alternate, device-specific, timeout for "
"'reboot' actions."),
},
{
"pcmk_reboot_retries", NULL, PCMK_VALUE_INTEGER, NULL,
"2", NULL,
pcmk__opt_advanced,
N_("The maximum number of times to try the 'reboot' command within the "
"timeout period"),
N_("Some devices do not support multiple connections. Operations may "
"\"fail\" if the device is busy with another task. In that case, "
"Pacemaker will automatically retry the operation if there is time "
"remaining. Use this option to alter the number of times Pacemaker "
"tries a 'reboot' action before giving up."),
},
{
"pcmk_off_action", NULL, PCMK_VALUE_STRING, NULL,
PCMK_ACTION_OFF, NULL,
pcmk__opt_advanced,
N_("An alternate command to run instead of 'off'"),
N_("Some devices do not support the standard commands or may provide "
"additional ones. Use this to specify an alternate, device-"
"specific, command that implements the 'off' action."),
},
{
"pcmk_off_timeout", NULL, PCMK_VALUE_TIMEOUT, NULL,
"60s", NULL,
pcmk__opt_advanced,
N_("Specify an alternate timeout to use for 'off' actions instead of "
"fencing-timeout"),
N_("Some devices need much more/less time to complete than normal. "
"Use this to specify an alternate, device-specific, timeout for "
"'off' actions."),
},
{
"pcmk_off_retries", NULL, PCMK_VALUE_INTEGER, NULL,
"2", NULL,
pcmk__opt_advanced,
N_("The maximum number of times to try the 'off' command within the "
"timeout period"),
N_("Some devices do not support multiple connections. Operations may "
"\"fail\" if the device is busy with another task. In that case, "
"Pacemaker will automatically retry the operation if there is time "
"remaining. Use this option to alter the number of times Pacemaker "
"tries a 'off' action before giving up."),
},
{
"pcmk_on_action", NULL, PCMK_VALUE_STRING, NULL,
PCMK_ACTION_ON, NULL,
pcmk__opt_advanced,
N_("An alternate command to run instead of 'on'"),
N_("Some devices do not support the standard commands or may provide "
"additional ones. Use this to specify an alternate, device-"
"specific, command that implements the 'on' action."),
},
{
"pcmk_on_timeout", NULL, PCMK_VALUE_TIMEOUT, NULL,
"60s", NULL,
pcmk__opt_advanced,
N_("Specify an alternate timeout to use for 'on' actions instead of "
"fencing-timeout"),
N_("Some devices need much more/less time to complete than normal. "
"Use this to specify an alternate, device-specific, timeout for "
"'on' actions."),
},
{
"pcmk_on_retries", NULL, PCMK_VALUE_INTEGER, NULL,
"2", NULL,
pcmk__opt_advanced,
N_("The maximum number of times to try the 'on' command within the "
"timeout period"),
N_("Some devices do not support multiple connections. Operations may "
"\"fail\" if the device is busy with another task. In that case, "
"Pacemaker will automatically retry the operation if there is time "
"remaining. Use this option to alter the number of times Pacemaker "
"tries a 'on' action before giving up."),
},
{
"pcmk_list_action", NULL, PCMK_VALUE_STRING, NULL,
PCMK_ACTION_LIST, NULL,
pcmk__opt_advanced,
N_("An alternate command to run instead of 'list'"),
N_("Some devices do not support the standard commands or may provide "
"additional ones. Use this to specify an alternate, device-"
"specific, command that implements the 'list' action."),
},
{
"pcmk_list_timeout", NULL, PCMK_VALUE_TIMEOUT, NULL,
"60s", NULL,
pcmk__opt_advanced,
N_("Specify an alternate timeout to use for 'list' actions instead of "
"fencing-timeout"),
N_("Some devices need much more/less time to complete than normal. "
"Use this to specify an alternate, device-specific, timeout for "
"'list' actions."),
},
{
"pcmk_list_retries", NULL, PCMK_VALUE_INTEGER, NULL,
"2", NULL,
pcmk__opt_advanced,
N_("The maximum number of times to try the 'list' command within the "
"timeout period"),
N_("Some devices do not support multiple connections. Operations may "
"\"fail\" if the device is busy with another task. In that case, "
"Pacemaker will automatically retry the operation if there is time "
"remaining. Use this option to alter the number of times Pacemaker "
"tries a 'list' action before giving up."),
},
{
"pcmk_monitor_action", NULL, PCMK_VALUE_STRING, NULL,
PCMK_ACTION_MONITOR, NULL,
pcmk__opt_advanced,
N_("An alternate command to run instead of 'monitor'"),
N_("Some devices do not support the standard commands or may provide "
"additional ones. Use this to specify an alternate, device-"
"specific, command that implements the 'monitor' action."),
},
{
"pcmk_monitor_timeout", NULL, PCMK_VALUE_TIMEOUT, NULL,
"60s", NULL,
pcmk__opt_advanced,
N_("Specify an alternate timeout to use for 'monitor' actions instead "
"of fencing-timeout"),
N_("Some devices need much more/less time to complete than normal. "
"Use this to specify an alternate, device-specific, timeout for "
"'monitor' actions."),
},
{
"pcmk_monitor_retries", NULL, PCMK_VALUE_INTEGER, NULL,
"2", NULL,
pcmk__opt_advanced,
N_("The maximum number of times to try the 'monitor' command within "
"the timeout period"),
N_("Some devices do not support multiple connections. Operations may "
"\"fail\" if the device is busy with another task. In that case, "
"Pacemaker will automatically retry the operation if there is time "
"remaining. Use this option to alter the number of times Pacemaker "
"tries a 'monitor' action before giving up."),
},
{
"pcmk_status_action", NULL, PCMK_VALUE_STRING, NULL,
PCMK_ACTION_STATUS, NULL,
pcmk__opt_advanced,
N_("An alternate command to run instead of 'status'"),
N_("Some devices do not support the standard commands or may provide "
"additional ones. Use this to specify an alternate, device-"
"specific, command that implements the 'status' action."),
},
{
"pcmk_status_timeout", NULL, PCMK_VALUE_TIMEOUT, NULL,
"60s", NULL,
pcmk__opt_advanced,
N_("Specify an alternate timeout to use for 'status' actions instead "
"of fencing-timeout"),
N_("Some devices need much more/less time to complete than normal. "
"Use this to specify an alternate, device-specific, timeout for "
"'status' actions."),
},
{
"pcmk_status_retries", NULL, PCMK_VALUE_INTEGER, NULL,
"2", NULL,
pcmk__opt_advanced,
N_("The maximum number of times to try the 'status' command within "
"the timeout period"),
N_("Some devices do not support multiple connections. Operations may "
"\"fail\" if the device is busy with another task. In that case, "
"Pacemaker will automatically retry the operation if there is time "
"remaining. Use this option to alter the number of times Pacemaker "
"tries a 'status' action before giving up."),
},
{ NULL, },
};
static const pcmk__cluster_option_t primitive_meta[] = {
/* name, old name, type, allowed values,
* default value, validator,
* flags,
* short description,
* long description
*/
{
PCMK_META_PRIORITY, NULL, PCMK_VALUE_SCORE, NULL,
"0", NULL,
pcmk__opt_none,
N_("Resource assignment priority"),
N_("If not all resources can be active, the cluster will stop "
"lower-priority resources in order to keep higher-priority ones "
"active."),
},
{
PCMK_META_CRITICAL, NULL, PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_TRUE, NULL,
pcmk__opt_none,
N_("Default value for influence in colocation constraints"),
N_("Use this value as the default for influence in all colocation "
"constraints involving this resource, as well as in the implicit "
"colocation constraints created if this resource is in a group."),
},
{
PCMK_META_TARGET_ROLE, NULL, PCMK_VALUE_SELECT,
PCMK_ROLE_STOPPED ", " PCMK_ROLE_STARTED ", "
PCMK_ROLE_UNPROMOTED ", " PCMK_ROLE_PROMOTED,
PCMK_ROLE_STARTED, NULL,
pcmk__opt_none,
N_("State the cluster should attempt to keep this resource in"),
N_("\"Stopped\" forces the resource to be stopped. "
"\"Started\" allows the resource to be started (and in the case of "
"promotable clone resources, promoted if appropriate). "
"\"Unpromoted\" allows the resource to be started, but only in the "
"unpromoted role if the resource is promotable. "
"\"Promoted\" is equivalent to \"Started\"."),
},
{
PCMK_META_IS_MANAGED, NULL, PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_TRUE, NULL,
pcmk__opt_none,
N_("Whether the cluster is allowed to actively change the resource's "
"state"),
N_("If false, the cluster will not start, stop, promote, or demote the "
"resource on any node. Recurring actions for the resource are "
"unaffected. If true, a true value for the maintenance-mode "
"cluster option, the maintenance node attribute, or the "
"maintenance resource meta-attribute overrides this."),
},
{
PCMK_META_MAINTENANCE, NULL, PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_FALSE, NULL,
pcmk__opt_none,
N_("If true, the cluster will not schedule any actions involving the "
"resource"),
N_("If true, the cluster will not start, stop, promote, or demote the "
"resource on any node, and will pause any recurring monitors "
"(except those specifying role as \"Stopped\"). If false, a true "
"value for the maintenance-mode cluster option or maintenance node "
"attribute overrides this."),
},
{
PCMK_META_RESOURCE_STICKINESS, NULL, PCMK_VALUE_SCORE, NULL,
NULL, NULL,
pcmk__opt_none,
N_("Score to add to the current node when a resource is already "
"active"),
N_("Score to add to the current node when a resource is already "
"active. This allows running resources to stay where they are, "
"even if they would be placed elsewhere if they were being started "
"from a stopped state. "
"The default is 1 for individual clone instances, and 0 for all "
"other resources."),
},
{
PCMK_META_REQUIRES, NULL, PCMK_VALUE_SELECT,
PCMK_VALUE_NOTHING ", " PCMK_VALUE_QUORUM ", "
PCMK_VALUE_FENCING ", " PCMK_VALUE_UNFENCING,
NULL, NULL,
pcmk__opt_none,
N_("Conditions under which the resource can be started"),
N_("Conditions under which the resource can be started. "
"\"nothing\" means the cluster can always start this resource. "
"\"quorum\" means the cluster can start this resource only if a "
"majority of the configured nodes are active. "
"\"fencing\" means the cluster can start this resource only if a "
"majority of the configured nodes are active and any failed or "
"unknown nodes have been fenced. "
"\"unfencing\" means the cluster can start this resource only if "
"a majority of the configured nodes are active and any failed or "
"unknown nodes have been fenced, and only on nodes that have been "
"unfenced. "
"The default is \"quorum\" for resources with a class of stonith; "
"otherwise, \"unfencing\" if unfencing is active in the cluster; "
"otherwise, \"fencing\" if the fencing-enabled cluster option is "
"true; "
"otherwise, \"quorum\"."),
},
{
PCMK_META_MIGRATION_THRESHOLD, NULL, PCMK_VALUE_SCORE, NULL,
PCMK_VALUE_INFINITY, NULL,
pcmk__opt_none,
N_("Number of failures on a node before the resource becomes "
"ineligible to run there."),
N_("Number of failures that may occur for this resource on a node, "
"before that node is marked ineligible to host this resource. A "
"value of 0 indicates that this feature is disabled (the node will "
"never be marked ineligible). By contrast, the cluster treats "
"\"INFINITY\" (the default) as a very large but finite number. "
"This option has an effect only if the failed operation specifies "
"its on-fail attribute as \"restart\" (the default), and "
"additionally for failed start operations, if the "
"start-failure-is-fatal cluster property is set to false."),
},
{
PCMK_META_FAILURE_TIMEOUT, NULL, PCMK_VALUE_DURATION, NULL,
"0", NULL,
pcmk__opt_none,
N_("Number of seconds before acting as if a failure had not occurred"),
N_("Number of seconds after a failed action for this resource before "
"acting as if the failure had not occurred, and potentially "
"allowing the resource back to the node on which it failed. "
"A value of 0 indicates that this feature is disabled."),
},
{
PCMK_META_MULTIPLE_ACTIVE, NULL, PCMK_VALUE_SELECT,
PCMK_VALUE_BLOCK ", " PCMK_VALUE_STOP_ONLY ", "
PCMK_VALUE_STOP_START ", " PCMK_VALUE_STOP_UNEXPECTED,
PCMK_VALUE_STOP_START, NULL,
pcmk__opt_none,
N_("What to do if the cluster finds the resource active on more than "
"one node"),
N_("What to do if the cluster finds the resource active on more than "
"one node. "
"\"block\" means to mark the resource as unmanaged. "
"\"stop_only\" means to stop all active instances of this resource "
"and leave them stopped. "
"\"stop_start\" means to stop all active instances of this "
"resource and start the resource in one location only. "
"\"stop_unexpected\" means to stop all active instances of this "
"resource except where the resource should be active. (This should "
"be used only when extra instances are not expected to disrupt "
"existing instances, and the resource agent's monitor of an "
"existing instance is capable of detecting any problems that could "
"be caused. Note that any resources ordered after this one will "
"still need to be restarted.)"),
},
{
PCMK_META_ALLOW_MIGRATE, NULL, PCMK_VALUE_BOOLEAN, NULL,
NULL, NULL,
pcmk__opt_none,
N_("Whether the cluster should try to \"live migrate\" this resource "
"when it needs to be moved"),
N_("Whether the cluster should try to \"live migrate\" this resource "
"when it needs to be moved. "
"The default is true for ocf:pacemaker:remote resources, and false "
"otherwise."),
},
{
PCMK_META_ALLOW_UNHEALTHY_NODES, NULL, PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_FALSE, NULL,
pcmk__opt_none,
N_("Whether the resource should be allowed to run on a node even if "
"the node's health score would otherwise prevent it"),
NULL,
},
{
PCMK_META_CONTAINER_ATTRIBUTE_TARGET, NULL, PCMK_VALUE_STRING, NULL,
NULL, NULL,
pcmk__opt_none,
N_("Where to check user-defined node attributes"),
N_("Whether to check user-defined node attributes on the physical host "
"where a container is running or on the local node. This is "
"usually set for a bundle resource and inherited by the bundle's "
"primitive resource. "
"A value of \"host\" means to check user-defined node attributes "
"on the underlying physical host. Any other value means to check "
"user-defined node attributes on the local node (for a bundled "
"primitive resource, this is the bundle node)."),
},
{
PCMK_META_REMOTE_NODE, NULL, PCMK_VALUE_STRING, NULL,
NULL, NULL,
pcmk__opt_none,
N_("Name of the Pacemaker Remote guest node this resource is "
"associated with, if any"),
N_("Name of the Pacemaker Remote guest node this resource is "
"associated with, if any. If specified, this both enables the "
"resource as a guest node and defines the unique name used to "
"identify the guest node. The guest must be configured to run the "
"Pacemaker Remote daemon when it is started. "
"WARNING: This value cannot overlap with any resource or node "
"IDs."),
},
{
PCMK_META_REMOTE_ADDR, NULL, PCMK_VALUE_STRING, NULL,
NULL, NULL,
pcmk__opt_none,
N_("If remote-node is specified, the IP address or hostname used to "
"connect to the guest via Pacemaker Remote"),
N_("If remote-node is specified, the IP address or hostname used to "
"connect to the guest via Pacemaker Remote. The Pacemaker Remote "
"daemon on the guest must be configured to accept connections on "
"this address. "
"The default is the value of the remote-node meta-attribute."),
},
{
PCMK_META_REMOTE_PORT, NULL, PCMK_VALUE_PORT, NULL,
"3121", NULL,
pcmk__opt_none,
N_("If remote-node is specified, port on the guest used for its "
"Pacemaker Remote connection"),
N_("If remote-node is specified, the port on the guest used for its "
"Pacemaker Remote connection. The Pacemaker Remote daemon on the "
"guest must be configured to listen on this port."),
},
{
PCMK_META_REMOTE_CONNECT_TIMEOUT, NULL, PCMK_VALUE_TIMEOUT, NULL,
"60s", NULL,
pcmk__opt_none,
N_("If remote-node is specified, how long before a pending Pacemaker "
"Remote guest connection times out."),
NULL,
},
{
PCMK_META_REMOTE_ALLOW_MIGRATE, NULL, PCMK_VALUE_BOOLEAN, NULL,
PCMK_VALUE_TRUE, NULL,
pcmk__opt_none,
N_("If remote-node is specified, this acts as the allow-migrate "
"meta-attribute for the implicit remote connection resource "
"(ocf:pacemaker:remote)."),
NULL,
},
{ NULL, },
};
/*
* Environment variable option handling
*/
/*!
* \internal
* \brief Get the value of a Pacemaker environment variable option
*
* If an environment variable option is set, with either a \c "PCMK_" or (for
* backward compatibility) \c "HA_" prefix, log and return the value.
*
* \param[in] option Environment variable name (without prefix)
*
* \return Value of environment variable, or \c NULL if not set
*/
const char *
pcmk__env_option(const char *option)
{
// @COMPAT Drop support for "HA_" options eventually
static const char *const prefixes[] = { "PCMK", "HA" };
CRM_CHECK(!pcmk__str_empty(option), return NULL);
for (int i = 0; i < PCMK__NELEM(prefixes); i++) {
char *env_name = crm_strdup_printf("%s_%s", prefixes[i], option);
const char *value = getenv(env_name);
if (value != NULL) {
crm_trace("Found %s = %s", env_name, value);
free(env_name);
return value;
}
free(env_name);
}
crm_trace("Nothing found for %s", option);
return NULL;
}
/*!
* \internal
* \brief Set or unset a Pacemaker environment variable option
*
* Set an environment variable option with a \c "PCMK_" prefix and optionally
* an \c "HA_" prefix for backward compatibility.
*
* \param[in] option Environment variable name (without prefix)
* \param[in] value New value (or NULL to unset)
* \param[in] compat If false and \p value is not \c NULL, set only
* \c "PCMK_<option>"; otherwise, set (or unset) both
* \c "PCMK_<option>" and \c "HA_<option>"
*
* \note \p compat is ignored when \p value is \c NULL. A \c NULL \p value
* means we're unsetting \p option. \c pcmk__get_env_option() checks for
* both prefixes, so we want to clear them both.
*/
void
pcmk__set_env_option(const char *option, const char *value, bool compat)
{
// @COMPAT Drop support for "HA_" options eventually
static const char *const prefixes[] = { "PCMK", "HA" };
CRM_CHECK(!pcmk__str_empty(option), return);
for (int i = 0; i < PCMK__NELEM(prefixes); i++) {
char *env_name = crm_strdup_printf("%s_%s", prefixes[i], option);
int rc = 0;
if (value != NULL) {
crm_trace("Setting %s to %s", env_name, value);
rc = setenv(env_name, value, 1);
} else {
crm_trace("Unsetting %s", env_name);
rc = unsetenv(env_name);
}
if (rc < 0) {
int err = errno;
crm_err("Failed to %sset %s: %s", ((value != NULL)? "" : "un"),
env_name, strerror(err));
}
free(env_name);
if (!compat && (value != NULL)) {
// For set, don't proceed to HA_<option> unless compat is enabled
break;
}
}
}
/*!
* \internal
* \brief Check whether Pacemaker environment variable option is enabled
*
* Given a Pacemaker environment variable option that can either be boolean
* or a list of daemon names, return true if the option is enabled for a given
* daemon.
*
* \param[in] daemon Daemon name (can be NULL)
* \param[in] option Pacemaker environment variable name
*
* \return true if variable is enabled for daemon, otherwise false
*/
bool
pcmk__env_option_enabled(const char *daemon, const char *option)
{
const char *value = pcmk__env_option(option);
return (value != NULL)
&& (pcmk__is_true(value)
|| ((daemon != NULL) && (strstr(value, daemon) != NULL)));
}
/*
* Cluster option handling
*/
/*!
* \internal
* \brief Check whether a string represents a valid interval specification
*
* \param[in] value String to validate
*
* \return \c true if \p value is a valid interval specification, or \c false
* otherwise
*/
bool
pcmk__valid_interval_spec(const char *value)
{
return pcmk_parse_interval_spec(value, NULL) == pcmk_rc_ok;
}
/*!
* \internal
* \brief Check whether a string represents a valid boolean value
*
* \param[in] value String to validate
*
* \return \c true if \p value is a valid boolean value, or \c false otherwise
*/
bool
pcmk__valid_boolean(const char *value)
{
return pcmk__parse_bool(value, NULL) == pcmk_rc_ok;
}
/*!
* \internal
* \brief Check whether a string represents a valid integer
*
* Valid values include \c INFINITY, \c -INFINITY, and all 64-bit integers.
*
* \param[in] value String to validate
*
* \return \c true if \p value is a valid integer, or \c false otherwise
*/
bool
pcmk__valid_int(const char *value)
{
return (value != NULL)
&& (pcmk_str_is_infinity(value)
|| pcmk_str_is_minus_infinity(value)
|| (pcmk__scan_ll(value, NULL, 0LL) == pcmk_rc_ok));
}
/*!
* \internal
* \brief Check whether a string represents a valid positive integer
*
* Valid values include \c INFINITY and all 64-bit positive integers.
*
* \param[in] value String to validate
*
* \return \c true if \p value is a valid positive integer, or \c false
* otherwise
*/
bool
pcmk__valid_positive_int(const char *value)
{
long long num = 0LL;
return pcmk_str_is_infinity(value)
|| ((pcmk__scan_ll(value, &num, 0LL) == pcmk_rc_ok)
&& (num > 0));
}
/*!
* \internal
* \brief Check whether a string represents a valid
* \c PCMK__OPT_NO_QUORUM_POLICY value
*
* \param[in] value String to validate
*
* \return \c true if \p value is a valid \c PCMK__OPT_NO_QUORUM_POLICY value,
* or \c false otherwise
*/
bool
pcmk__valid_no_quorum_policy(const char *value)
{
return pcmk__strcase_any_of(value,
PCMK_VALUE_STOP, PCMK_VALUE_FREEZE,
PCMK_VALUE_IGNORE, PCMK_VALUE_DEMOTE,
PCMK_VALUE_FENCE, PCMK_VALUE_FENCE_LEGACY,
NULL);
}
/*!
* \internal
* \brief Check whether a string represents a valid percentage
*
* Valid values include long integers, with an optional trailing string
* beginning with '%'.
*
* \param[in] value String to validate
*
* \return \c true if \p value is a valid percentage value, or \c false
* otherwise
*/
bool
pcmk__valid_percentage(const char *value)
{
char *end = NULL;
float number = strtof(value, &end);
return ((end == NULL) || (end[0] == '%')) && (number >= 0);
}
/*!
* \internal
* \brief Check whether a string represents a valid placement strategy
*
* \param[in] value String to validate
*
* \return \c true if \p value is a valid placement strategy, or \c false
* otherwise
*/
bool
pcmk__valid_placement_strategy(const char *value)
{
return pcmk__strcase_any_of(value,
PCMK_VALUE_DEFAULT, PCMK_VALUE_UTILIZATION,
PCMK_VALUE_MINIMAL, PCMK_VALUE_BALANCED, NULL);
}
/*!
* \internal
* \brief Check a table of configured options for a particular option
*
* \param[in,out] table Name/value pairs for configured options
* \param[in] option Option to look up
*
* \return Option value (from supplied options table or default value)
*/
static const char *
cluster_option_value(GHashTable *table, const pcmk__cluster_option_t *option)
{
const char *value = NULL;
pcmk__assert((option != NULL) && (option->name != NULL));
if (table != NULL) {
value = g_hash_table_lookup(table, option->name);
if ((value == NULL) && (option->alt_name != NULL)) {
value = g_hash_table_lookup(table, option->alt_name);
if (value != NULL) {
pcmk__config_warn("Support for legacy name '%s' for cluster "
"option '%s' is deprecated and will be "
"removed in a future release",
option->alt_name, option->name);
// Inserting copy with current name ensures we only warn once
pcmk__insert_dup(table, option->name, value);
}
}
if ((value != NULL) && (option->is_valid != NULL)
&& !option->is_valid(value)) {
pcmk__config_err("Using default value for cluster option '%s' "
"because '%s' is invalid", option->name, value);
value = NULL;
}
if (value != NULL) {
return value;
}
}
// No value found, use default
value = option->default_value;
if (value == NULL) {
crm_trace("No value or default provided for cluster option '%s'",
option->name);
return NULL;
}
CRM_CHECK((option->is_valid == NULL) || option->is_valid(value),
crm_err("Bug: default value for cluster option '%s' is invalid",
option->name);
return NULL);
crm_trace("Using default value '%s' for cluster option '%s'",
value, option->name);
if (table != NULL) {
pcmk__insert_dup(table, option->name, value);
}
return value;
}
/*!
* \internal
* \brief Get the value of a cluster option
*
* \param[in,out] options Name/value pairs for configured options
* \param[in] name (Primary) option name to look for
*
* \return Option value
*/
const char *
pcmk__cluster_option(GHashTable *options, const char *name)
{
for (const pcmk__cluster_option_t *option = cluster_options;
option->name != NULL; option++) {
if (pcmk__str_eq(name, option->name, pcmk__str_casei)) {
return cluster_option_value(options, option);
}
}
CRM_CHECK(FALSE, crm_err("Bug: looking for unknown option '%s'", name));
return NULL;
}
/*!
* \internal
* \brief Output cluster option metadata as OCF-like XML
*
* \param[in,out] out Output object
* \param[in] name Fake resource agent name for the option list
* \param[in] desc_short Short description of the option list
* \param[in] desc_long Long description of the option list
* \param[in] filter Group of <tt>enum pcmk__opt_flags</tt>; output an
* option only if its \c flags member has all these
* flags set
* \param[in] all If \c true, output all options; otherwise, exclude
* advanced and deprecated options unless
* \c pcmk__opt_advanced and \c pcmk__opt_deprecated
* flags (respectively) are set in \p filter. This is
* always treated as true for XML output objects.
*
* \return Standard Pacemaker return code
*/
int
pcmk__output_cluster_options(pcmk__output_t *out, const char *name,
const char *desc_short, const char *desc_long,
uint32_t filter, bool all)
{
return out->message(out, "option-list", name, desc_short, desc_long, filter,
cluster_options, all);
}
/*!
* \internal
* \brief Output primitive resource meta-attributes as OCF-like XML
*
* \param[in,out] out Output object
* \param[in] name Fake resource agent name for the option list
* \param[in] desc_short Short description of the option list
* \param[in] desc_long Long description of the option list
* \param[in] all If \c true, output all options; otherwise, exclude
* advanced and deprecated options. This is always
* treated as true for XML output objects.
*
* \return Standard Pacemaker return code
*/
int
pcmk__output_primitive_meta(pcmk__output_t *out, const char *name,
const char *desc_short, const char *desc_long,
bool all)
{
return out->message(out, "option-list", name, desc_short, desc_long,
pcmk__opt_none, primitive_meta, all);
}
/*!
* \internal
* \brief Output fence device common parameter metadata as OCF-like XML
*
* These are parameters that are available for all fencing resources, regardless
* of type. They are processed by Pacemaker, rather than by the fence agent or
* the fencing library.
*
* \param[in,out] out Output object
* \param[in] name Fake resource agent name for the option list
* \param[in] desc_short Short description of the option list
* \param[in] desc_long Long description of the option list
* \param[in] all If \c true, output all options; otherwise, exclude
* advanced and deprecated options. This is always
* treated as true for XML output objects.
*
* \return Standard Pacemaker return code
*/
int
pcmk__output_fencing_params(pcmk__output_t *out, const char *name,
const char *desc_short, const char *desc_long,
bool all)
{
return out->message(out, "option-list", name, desc_short, desc_long,
pcmk__opt_none, fencing_params, all);
}
/*!
* \internal
* \brief Output a list of cluster options for a daemon
*
* \brief[in,out] out Output object
* \brief[in] name Daemon name
* \brief[in] desc_short Short description of the option list
* \brief[in] desc_long Long description of the option list
* \brief[in] filter <tt>enum pcmk__opt_flags</tt> flag corresponding
* to daemon
*
* \return Standard Pacemaker return code
*/
int
pcmk__daemon_metadata(pcmk__output_t *out, const char *name,
const char *desc_short, const char *desc_long,
enum pcmk__opt_flags filter)
{
// @COMPAT Drop this function when we drop daemon metadata
pcmk__output_t *tmp_out = NULL;
xmlNode *top = NULL;
const xmlNode *metadata = NULL;
GString *metadata_s = NULL;
int rc = pcmk__output_new(&tmp_out, "xml", "/dev/null", NULL);
if (rc != pcmk_rc_ok) {
return rc;
}
pcmk__output_set_legacy_xml(tmp_out);
if (filter == pcmk__opt_fencing) {
pcmk__output_fencing_params(tmp_out, name, desc_short, desc_long, true);
} else {
pcmk__output_cluster_options(tmp_out, name, desc_short, desc_long,
(uint32_t) filter, true);
}
tmp_out->finish(tmp_out, CRM_EX_OK, false, (void **) &top);
metadata = pcmk__xe_first_child(top, PCMK_XE_RESOURCE_AGENT, NULL, NULL);
metadata_s = g_string_sized_new(16384);
pcmk__xml_string(metadata, pcmk__xml_fmt_pretty|pcmk__xml_fmt_text,
metadata_s, 0);
out->output_xml(out, PCMK_XE_METADATA, metadata_s->str);
pcmk__output_free(tmp_out);
pcmk__xml_free(top);
g_string_free(metadata_s, TRUE);
return pcmk_rc_ok;
}
void
pcmk__validate_cluster_options(GHashTable *options)
{
for (const pcmk__cluster_option_t *option = cluster_options;
option->name != NULL; option++) {
cluster_option_value(options, option);
}
}
diff --git a/lib/common/tests/agents/pcmk_stonith_param_test.c b/lib/common/tests/agents/pcmk_stonith_param_test.c
index 673b4d4865..5bb266968b 100644
--- a/lib/common/tests/agents/pcmk_stonith_param_test.c
+++ b/lib/common/tests/agents/pcmk_stonith_param_test.c
@@ -1,50 +1,50 @@
/*
* Copyright 2020-2025 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 <crm/common/unittest_internal.h>
#include <crm/common/agents.h>
static void
is_stonith_param(void **state)
{
assert_false(pcmk_stonith_param(NULL));
assert_false(pcmk_stonith_param(""));
assert_false(pcmk_stonith_param("unrecognized"));
assert_false(pcmk_stonith_param("pcmk_unrecognized"));
assert_false(pcmk_stonith_param("x" PCMK_FENCING_ACTION_LIMIT));
assert_false(pcmk_stonith_param(PCMK_FENCING_ACTION_LIMIT "x"));
assert_true(pcmk_stonith_param(PCMK_FENCING_ACTION_LIMIT));
assert_true(pcmk_stonith_param(PCMK_FENCING_DELAY_BASE));
assert_true(pcmk_stonith_param(PCMK_FENCING_DELAY_MAX));
assert_true(pcmk_stonith_param(PCMK_FENCING_HOST_ARGUMENT));
assert_true(pcmk_stonith_param(PCMK_FENCING_HOST_CHECK));
assert_true(pcmk_stonith_param(PCMK_FENCING_HOST_LIST));
- assert_true(pcmk_stonith_param(PCMK_STONITH_HOST_MAP));
+ assert_true(pcmk_stonith_param(PCMK_FENCING_HOST_MAP));
assert_true(pcmk_stonith_param(PCMK_STONITH_PROVIDES));
assert_true(pcmk_stonith_param(PCMK_STONITH_STONITH_TIMEOUT));
}
static void
is_stonith_action_param(void **state)
{
/* Currently, the function accepts any string not containing underbars as
* the action name, so we do not need to verify particular action names.
*/
assert_false(pcmk_stonith_param("pcmk_on_unrecognized"));
assert_true(pcmk_stonith_param("pcmk_on_action"));
assert_true(pcmk_stonith_param("pcmk_on_timeout"));
assert_true(pcmk_stonith_param("pcmk_on_retries"));
}
PCMK__UNIT_TEST(NULL, NULL,
cmocka_unit_test(is_stonith_param),
cmocka_unit_test(is_stonith_action_param))

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