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main.c
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/*
* Copyright (C) 2009 Andrew Beekhof <andrew@beekhof.net>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <crm_internal.h>
#include <sys/param.h>
#include <stdio.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/msg_xml.h>
#include <crm/common/ipc.h>
#include <crm/common/ipcs.h>
#include <crm/cluster/internal.h>
#include <crm/stonith-ng.h>
#include <crm/fencing/internal.h>
#include <crm/common/xml.h>
#include <crm/common/mainloop.h>
#include <crm/cib/internal.h>
#include <crm/pengine/status.h>
#include <allocate.h>
#include <internal.h>
#include <standalone_config.h>
char *stonith_our_uname = NULL;
char *stonith_our_uuid = NULL;
GMainLoop *mainloop = NULL;
gboolean stand_alone = FALSE;
gboolean no_cib_connect = FALSE;
gboolean stonith_shutdown_flag = FALSE;
qb_ipcs_service_t *ipcs = NULL;
xmlNode *local_cib = NULL;
static cib_t *cib_api = NULL;
static void *cib_library = NULL;
static void stonith_shutdown(int nsig);
static void stonith_cleanup(void);
static int32_t
st_ipc_accept(qb_ipcs_connection_t * c, uid_t uid, gid_t gid)
{
if (stonith_shutdown_flag) {
crm_info("Ignoring new client [%d] during shutdown", crm_ipcs_client_pid(c));
return -EPERM;
}
if (crm_client_new(c, uid, gid) == NULL) {
return -EIO;
}
return 0;
}
static void
st_ipc_created(qb_ipcs_connection_t * c)
{
crm_trace("Connection created for %p", c);
}
/* Exit code means? */
static int32_t
st_ipc_dispatch(qb_ipcs_connection_t * qbc, void *data, size_t size)
{
uint32_t id = 0;
uint32_t flags = 0;
xmlNode *request = NULL;
crm_client_t *c = crm_client_get(qbc);
CRM_CHECK(c != NULL, goto cleanup);
request = crm_ipcs_recv(c, data, size, &id, &flags);
if (request == NULL) {
crm_ipcs_send_ack(c, id, "nack", __FUNCTION__, __LINE__);
return 0;
}
if (c->name == NULL) {
const char *value = crm_element_value(request, F_STONITH_CLIENTNAME);
if (value == NULL) {
value = "unknown";
}
c->name = g_strdup_printf("%s.%u", value, c->pid);
}
if (flags & crm_ipc_client_response) {
CRM_LOG_ASSERT(c->request_id == 0); /* This means the client has two synchronous events in-flight */
c->request_id = id; /* Reply only to the last one */
}
crm_xml_add(request, F_STONITH_CLIENTID, c->id);
crm_xml_add(request, F_STONITH_CLIENTNAME, crm_client_name(c));
crm_xml_add(request, F_STONITH_CLIENTNODE, stonith_our_uname);
crm_log_xml_trace(request, "Client[inbound]");
stonith_command(c, id, flags, request, NULL);
cleanup:
if (c == NULL) {
crm_log_xml_notice(request, "Invalid client");
}
free_xml(request);
return 0;
}
/* Error code means? */
static int32_t
st_ipc_closed(qb_ipcs_connection_t * c)
{
crm_client_t *client = crm_client_get(c);
crm_trace("Connection %p closed", c);
crm_client_destroy(client);
/* 0 means: yes, go ahead and destroy the connection */
return 0;
}
static void
st_ipc_destroy(qb_ipcs_connection_t * c)
{
crm_trace("Connection %p destroyed", c);
}
static void
stonith_peer_callback(xmlNode * msg, void *private_data)
{
const char *remote_peer = crm_element_value(msg, F_ORIG);
const char *op = crm_element_value(msg, F_STONITH_OPERATION);
if (crm_str_eq(op, "poke", TRUE)) {
return;
}
crm_log_xml_trace(msg, "Peer[inbound]");
stonith_command(NULL, 0, 0, msg, remote_peer);
}
#if SUPPORT_HEARTBEAT
static void
stonith_peer_hb_callback(HA_Message * msg, void *private_data)
{
xmlNode *xml = convert_ha_message(NULL, msg, __FUNCTION__);
stonith_peer_callback(xml, private_data);
free_xml(xml);
}
static void
stonith_peer_hb_destroy(gpointer user_data)
{
if (stonith_shutdown_flag) {
crm_info("Heartbeat disconnection complete... exiting");
} else {
crm_err("Heartbeat connection lost! Exiting.");
}
stonith_shutdown(0);
}
#endif
#if SUPPORT_COROSYNC
static gboolean
stonith_peer_ais_callback(int kind, const char *from, const char *data)
{
xmlNode *xml = NULL;
if (kind == crm_class_cluster) {
xml = string2xml(data);
if (xml == NULL) {
goto bail;
}
crm_xml_add(xml, F_ORIG, from);
/* crm_xml_add_int(xml, F_SEQ, wrapper->id); */
stonith_peer_callback(xml, NULL);
}
free_xml(xml);
return TRUE;
bail:
crm_err("Invalid XML: '%.120s'", data);
return TRUE;
}
static void
stonith_peer_ais_destroy(gpointer user_data)
{
crm_err("AIS connection terminated");
stonith_shutdown(0);
}
#endif
void
do_local_reply(xmlNode * notify_src, const char *client_id, gboolean sync_reply, gboolean from_peer)
{
/* send callback to originating child */
crm_client_t *client_obj = NULL;
int local_rc = pcmk_ok;
crm_trace("Sending response");
client_obj = crm_client_get_by_id(client_id);
crm_trace("Sending callback to request originator");
if (client_obj == NULL) {
local_rc = -1;
crm_trace("No client to sent the response to. F_STONITH_CLIENTID not set.");
} else {
int rid = 0;
if (sync_reply) {
CRM_LOG_ASSERT(client_obj->request_id);
rid = client_obj->request_id;
client_obj->request_id = 0;
crm_trace("Sending response %d to %s %s",
rid, client_obj->name, from_peer ? "(originator of delegated request)" : "");
} else {
crm_trace("Sending an event to %s %s",
client_obj->name, from_peer ? "(originator of delegated request)" : "");
}
local_rc = crm_ipcs_send(client_obj, rid, notify_src, !sync_reply);
}
if (local_rc < pcmk_ok && client_obj != NULL) {
crm_warn("%sSync reply to %s failed: %s",
sync_reply ? "" : "A-",
client_obj ? client_obj->name : "<unknown>", pcmk_strerror(local_rc));
}
}
long long
get_stonith_flag(const char *name)
{
if (safe_str_eq(name, T_STONITH_NOTIFY_FENCE)) {
return 0x01;
} else if (safe_str_eq(name, STONITH_OP_DEVICE_ADD)) {
return 0x04;
} else if (safe_str_eq(name, STONITH_OP_DEVICE_DEL)) {
return 0x10;
}
return 0;
}
static void
stonith_notify_client(gpointer key, gpointer value, gpointer user_data)
{
xmlNode *update_msg = user_data;
crm_client_t *client = value;
const char *type = NULL;
CRM_CHECK(client != NULL, return);
CRM_CHECK(update_msg != NULL, return);
type = crm_element_value(update_msg, F_SUBTYPE);
CRM_CHECK(type != NULL, crm_log_xml_err(update_msg, "notify"); return);
if (client->ipcs == NULL) {
crm_trace("Skipping client with NULL channel");
return;
}
if (client->options & get_stonith_flag(type)) {
int rc = crm_ipcs_send(client, 0, update_msg, crm_ipc_server_event | crm_ipc_server_error);
if (rc <= 0) {
crm_warn("%s notification of client %s.%.6s failed: %s (%d)",
type, crm_client_name(client), client->id, pcmk_strerror(rc), rc);
} else {
crm_trace("Sent %s notification to client %s.%.6s", type, crm_client_name(client),
client->id);
}
}
}
void
do_stonith_async_timeout_update(const char *client_id, const char *call_id, int timeout)
{
crm_client_t *client = NULL;
xmlNode *notify_data = NULL;
if (!timeout || !call_id || !client_id) {
return;
}
client = crm_client_get_by_id(client_id);
if (!client) {
return;
}
notify_data = create_xml_node(NULL, T_STONITH_TIMEOUT_VALUE);
crm_xml_add(notify_data, F_TYPE, T_STONITH_TIMEOUT_VALUE);
crm_xml_add(notify_data, F_STONITH_CALLID, call_id);
crm_xml_add_int(notify_data, F_STONITH_TIMEOUT, timeout);
crm_trace("timeout update is %d for client %s and call id %s", timeout, client_id, call_id);
if (client) {
crm_ipcs_send(client, 0, notify_data, crm_ipc_server_event);
}
free_xml(notify_data);
}
void
do_stonith_notify(int options, const char *type, int result, xmlNode * data)
{
/* TODO: Standardize the contents of data */
xmlNode *update_msg = create_xml_node(NULL, "notify");
CRM_CHECK(type != NULL,;);
crm_xml_add(update_msg, F_TYPE, T_STONITH_NOTIFY);
crm_xml_add(update_msg, F_SUBTYPE, type);
crm_xml_add(update_msg, F_STONITH_OPERATION, type);
crm_xml_add_int(update_msg, F_STONITH_RC, result);
if (data != NULL) {
add_message_xml(update_msg, F_STONITH_CALLDATA, data);
}
crm_trace("Notifying clients");
g_hash_table_foreach(client_connections, stonith_notify_client, update_msg);
free_xml(update_msg);
crm_trace("Notify complete");
}
static stonith_key_value_t *
parse_device_list(const char *devices)
{
int lpc = 0;
int max = 0;
int last = 0;
stonith_key_value_t *output = NULL;
if (devices == NULL) {
return output;
}
max = strlen(devices);
for (lpc = 0; lpc <= max; lpc++) {
if (devices[lpc] == ',' || devices[lpc] == 0) {
char *line = NULL;
line = calloc(1, 2 + lpc - last);
snprintf(line, 1 + lpc - last, "%s", devices + last);
output = stonith_key_value_add(output, NULL, line);
free(line);
last = lpc + 1;
}
}
return output;
}
static void
topology_remove_helper(const char *node, int level)
{
int rc;
char *desc = NULL;
xmlNode *data = create_xml_node(NULL, F_STONITH_LEVEL);
xmlNode *notify_data = create_xml_node(NULL, STONITH_OP_LEVEL_DEL);
crm_xml_add(data, "origin", __FUNCTION__);
crm_xml_add_int(data, XML_ATTR_ID, level);
crm_xml_add(data, F_STONITH_TARGET, node);
rc = stonith_level_remove(data, &desc);
crm_xml_add(notify_data, F_STONITH_DEVICE, desc);
crm_xml_add_int(notify_data, F_STONITH_ACTIVE, g_hash_table_size(topology));
do_stonith_notify(0, STONITH_OP_LEVEL_DEL, rc, notify_data);
free_xml(notify_data);
free_xml(data);
free(desc);
}
static void
topology_register_helper(const char *node, int level, stonith_key_value_t * device_list)
{
int rc;
char *desc = NULL;
xmlNode *notify_data = create_xml_node(NULL, STONITH_OP_LEVEL_ADD);
xmlNode *data = create_level_registration_xml(node, level, device_list);
rc = stonith_level_register(data, &desc);
crm_xml_add(notify_data, F_STONITH_DEVICE, desc);
crm_xml_add_int(notify_data, F_STONITH_ACTIVE, g_hash_table_size(topology));
do_stonith_notify(0, STONITH_OP_LEVEL_ADD, rc, notify_data);
free_xml(notify_data);
free_xml(data);
free(desc);
}
static void
remove_cib_device(xmlXPathObjectPtr xpathObj)
{
int max = 0, lpc = 0;
if (xpathObj && xpathObj->nodesetval) {
max = xpathObj->nodesetval->nodeNr;
}
for (lpc = 0; lpc < max; lpc++) {
const char *rsc_id = NULL;
const char *standard = NULL;
xmlNode *match = getXpathResult(xpathObj, lpc);
CRM_CHECK(match != NULL, continue);
standard = crm_element_value(match, XML_AGENT_ATTR_CLASS);
if (safe_str_neq(standard, "stonith")) {
continue;
}
rsc_id = crm_element_value(match, XML_ATTR_ID);
stonith_device_remove(rsc_id, TRUE);
}
}
static void
remove_fencing_topology(xmlXPathObjectPtr xpathObj)
{
int max = 0, lpc = 0;
if (xpathObj && xpathObj->nodesetval) {
max = xpathObj->nodesetval->nodeNr;
}
for (lpc = 0; lpc < max; lpc++) {
xmlNode *match = getXpathResult(xpathObj, lpc);
CRM_CHECK(match != NULL, continue);
if (crm_element_value(match, XML_DIFF_MARKER)) {
/* Deletion */
int index = 0;
const char *target = crm_element_value(match, XML_ATTR_STONITH_TARGET);
crm_element_value_int(match, XML_ATTR_STONITH_INDEX, &index);
if (target == NULL) {
crm_err("Invalid fencing target in element %s", ID(match));
} else if (index <= 0) {
crm_err("Invalid level for %s in element %s", target, ID(match));
} else {
topology_remove_helper(target, index);
}
/* } else { Deal with modifications during the 'addition' stage */
}
}
}
static void
register_fencing_topology(xmlXPathObjectPtr xpathObj, gboolean force)
{
int max = 0, lpc = 0;
if (xpathObj && xpathObj->nodesetval) {
max = xpathObj->nodesetval->nodeNr;
}
for (lpc = 0; lpc < max; lpc++) {
int index = 0;
const char *target;
const char *dev_list;
stonith_key_value_t *devices = NULL;
xmlNode *match = getXpathResult(xpathObj, lpc);
CRM_CHECK(match != NULL, continue);
crm_element_value_int(match, XML_ATTR_STONITH_INDEX, &index);
target = crm_element_value(match, XML_ATTR_STONITH_TARGET);
dev_list = crm_element_value(match, XML_ATTR_STONITH_DEVICES);
devices = parse_device_list(dev_list);
crm_trace("Updating %s[%d] (%s) to %s", target, index, ID(match), dev_list);
if (target == NULL) {
crm_err("Invalid fencing target in element %s", ID(match));
} else if (index <= 0) {
crm_err("Invalid level for %s in element %s", target, ID(match));
} else if (force == FALSE && crm_element_value(match, XML_DIFF_MARKER)) {
/* Addition */
topology_register_helper(target, index, devices);
} else { /* Modification */
/* Remove then re-add */
topology_remove_helper(target, index);
topology_register_helper(target, index, devices);
}
stonith_key_value_freeall(devices, 1, 1);
}
}
/* Fencing
<diff crm_feature_set="3.0.6">
<diff-removed>
<fencing-topology>
<fencing-level id="f-p1.1" target="pcmk-1" index="1" devices="poison-pill" __crm_diff_marker__="removed:top"/>
<fencing-level id="f-p1.2" target="pcmk-1" index="2" devices="power" __crm_diff_marker__="removed:top"/>
<fencing-level devices="disk,network" id="f-p2.1"/>
</fencing-topology>
</diff-removed>
<diff-added>
<fencing-topology>
<fencing-level id="f-p.1" target="pcmk-1" index="1" devices="poison-pill" __crm_diff_marker__="added:top"/>
<fencing-level id="f-p2.1" target="pcmk-2" index="1" devices="disk,something"/>
<fencing-level id="f-p3.1" target="pcmk-2" index="2" devices="power" __crm_diff_marker__="added:top"/>
</fencing-topology>
</diff-added>
</diff>
*/
static void
fencing_topology_init(xmlNode * msg)
{
xmlXPathObjectPtr xpathObj = NULL;
const char *xpath = "//" XML_TAG_FENCING_LEVEL;
crm_trace("Pushing in stonith topology");
/* Grab everything */
xpathObj = xpath_search(msg, xpath);
register_fencing_topology(xpathObj, TRUE);
if (xpathObj) {
freeXpathObject(xpathObj);
}
}
#define rsc_name(x) x->clone_name?x->clone_name:x->id
static void cib_device_update(resource_t *rsc)
{
node_t *node = NULL;
const char *value = NULL;
const char *rclass = NULL;
if(rsc->children) {
GListPtr gIter = NULL;
for (gIter = rsc->children; gIter != NULL; gIter = gIter->next) {
cib_device_update(gIter->data);
}
return;
}
if(g_hash_table_lookup(device_list, rsc_name(rsc))) {
stonith_device_remove(rsc_name(rsc), TRUE);
}
rclass = crm_element_value(rsc->xml, XML_AGENT_ATTR_CLASS);
if(safe_str_neq(rclass, "stonith")) {
return;
}
value = g_hash_table_lookup(rsc->meta, XML_RSC_ATTR_TARGET_ROLE);
if(value && strcmp(RSC_STOPPED, value) == 0) {
crm_info("Device %s has been disabled", rsc->id);
return;
} else if(stonith_our_uname) {
GHashTableIter iter;
g_hash_table_iter_init(&iter, rsc->allowed_nodes);
while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
if(node && strcmp(node->details->uname, stonith_our_uname) == 0) {
break;
}
node = NULL;
}
}
if(node == NULL) {
GHashTableIter iter;
crm_info("Device %s has been disabled on %s: unknown", rsc->id, stonith_our_uname);
g_hash_table_iter_init(&iter, rsc->allowed_nodes);
while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
crm_trace("Available: %s = %d", node->details->uname, node->weight);
}
return;
} else if(node->weight < 0) {
crm_info("Device %s has been disabled on %s: score=%s", rsc->id, stonith_our_uname, score2char(node->weight));
return;
} else {
xmlNode *data;
GHashTableIter gIter;
stonith_key_value_t *params = NULL;
const char *name = NULL;
const char *agent = crm_element_value(rsc->xml, XML_EXPR_ATTR_TYPE);
const char *provider = crm_element_value(rsc->xml, XML_AGENT_ATTR_PROVIDER);
crm_info("Device %s is allowed on %s: score=%d", rsc->id, stonith_our_uname, node->weight);
g_hash_table_iter_init(&gIter, rsc->parameters);
while (g_hash_table_iter_next(&gIter, (gpointer *) & name, (gpointer *) & value)) {
if (!name || !value) {
continue;
}
params = stonith_key_value_add(params, name, value);
}
data = create_device_registration_xml(rsc_name(rsc), provider, agent, params);
stonith_device_register(data, NULL, TRUE);
}
}
extern xmlNode *do_calculations(pe_working_set_t * data_set, xmlNode * xml_input, crm_time_t * now);
extern node_t *create_node(const char *id, const char *uname, const char *type, const char *score, pe_working_set_t * data_set);
static void
cib_devices_update(void)
{
GListPtr gIter = NULL;
pe_working_set_t data_set;
set_working_set_defaults(&data_set);
data_set.input = local_cib;
data_set.now = crm_time_new(NULL);
data_set.flags |= pe_flag_quick_location;
data_set.localhost = stonith_our_uname;
cluster_status(&data_set);
do_calculations(&data_set, NULL, NULL);
for (gIter = data_set.resources; gIter != NULL; gIter = gIter->next) {
cib_device_update(gIter->data);
}
data_set.input = NULL; /* Wasn't a copy */
cleanup_alloc_calculations(&data_set);
}
static void
update_cib_stonith_devices(const char *event, xmlNode * msg)
{
const char *reason = "none";
gboolean needs_update = FALSE;
xmlXPathObjectPtr xpath_obj = NULL;
/* process new constraints */
xpath_obj = xpath_search(msg, "//" F_CIB_UPDATE_RESULT "//" XML_CONS_TAG_RSC_LOCATION);
if (xpath_obj && xpath_obj->nodesetval->nodeNr > 0) {
/* Safest and simplest to always recompute */
needs_update = TRUE;
freeXpathObject(xpath_obj);
reason = "new location constraint";
}
/* process deletions */
xpath_obj = xpath_search(msg, "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_REMOVED "//" XML_CIB_TAG_RESOURCE);
if (xpath_obj && xpath_obj->nodesetval->nodeNr > 0) {
remove_cib_device(xpath_obj);
freeXpathObject(xpath_obj);
}
/* process additions */
xpath_obj = xpath_search(msg, "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_ADDED "//" XML_CIB_TAG_RESOURCE);
if (xpath_obj && xpath_obj->nodesetval->nodeNr > 0) {
int lpc;
needs_update = TRUE;
for(lpc = 0; lpc < xpath_obj->nodesetval->nodeNr; lpc++) {
xmlNode *match = getXpathResult(xpath_obj, lpc);
const char *path = (char *)xmlGetNodePath(match);
crm_info("resource[%d] = %s", lpc, path);
}
freeXpathObject(xpath_obj);
reason = "new resource";
}
if(needs_update) {
crm_info("Updating device list from the cib: %s", reason);
cib_devices_update();
}
}
static void
update_fencing_topology(const char *event, xmlNode * msg)
{
const char *xpath;
xmlXPathObjectPtr xpathObj = NULL;
/* Process deletions (only) */
xpath = "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_REMOVED "//" XML_TAG_FENCING_LEVEL;
xpathObj = xpath_search(msg, xpath);
remove_fencing_topology(xpathObj);
if (xpathObj) {
freeXpathObject(xpathObj);
}
/* Process additions and changes */
xpath = "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_ADDED "//" XML_TAG_FENCING_LEVEL;
xpathObj = xpath_search(msg, xpath);
register_fencing_topology(xpathObj, FALSE);
if (xpathObj) {
freeXpathObject(xpathObj);
}
}
static bool have_cib_devices = FALSE;
static void
update_cib_cache_cb(const char *event, xmlNode * msg)
{
int rc = pcmk_ok;
static int (*cib_apply_patch_event)(xmlNode *, xmlNode *, xmlNode **, int) = NULL;
if(!have_cib_devices) {
crm_trace("Skipping updates until we get a full dump");
return;
}
if (cib_apply_patch_event == NULL) {
cib_apply_patch_event = find_library_function(&cib_library, CIB_LIBRARY, "cib_apply_patch_event", TRUE);
}
CRM_ASSERT(cib_apply_patch_event);
/* Maintain a local copy of the CIB so that we have full access to the device definitions and location constraints */
if (local_cib != NULL) {
xmlNode *cib_last = local_cib;
local_cib = NULL;
rc = (*cib_apply_patch_event)(msg, cib_last, &local_cib, LOG_DEBUG);
free_xml(cib_last);
switch (rc) {
case -pcmk_err_diff_resync:
case -pcmk_err_diff_failed:
crm_notice("[%s] Patch aborted: %s (%d)", event, pcmk_strerror(rc), rc);
case pcmk_ok:
break;
default:
crm_warn("[%s] ABORTED: %s (%d)", event, pcmk_strerror(rc), rc);
}
}
if (local_cib == NULL) {
crm_trace("Re-requesting the full cib after diff failure");
rc = cib_api->cmds->query(cib_api, NULL, &local_cib, cib_scope_local | cib_sync_call);
if(rc != pcmk_ok) {
crm_err("Couldnt retrieve the CIB: %s (%d)", pcmk_strerror(rc), rc);
}
CRM_ASSERT(local_cib != NULL);
}
update_fencing_topology(event, msg);
update_cib_stonith_devices(event, msg);
}
static void
init_cib_cache_cb(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data)
{
crm_info("Updating device list from the cib: init");
have_cib_devices = TRUE;
local_cib = copy_xml(output);
fencing_topology_init(msg);
cib_devices_update();
}
static void
stonith_shutdown(int nsig)
{
stonith_shutdown_flag = TRUE;
crm_info("Terminating with %d clients", crm_hash_table_size(client_connections));
if (mainloop != NULL && g_main_is_running(mainloop)) {
g_main_quit(mainloop);
} else {
stonith_cleanup();
crm_exit(EX_OK);
}
}
static void
cib_connection_destroy(gpointer user_data)
{
if (stonith_shutdown_flag) {
crm_info("Connection to the CIB closed.");
return;
} else {
crm_notice("Connection to the CIB terminated. Shutting down.");
}
if (cib_api) {
cib_api->cmds->signoff(cib_api);
}
stonith_shutdown(0);
}
static void
stonith_cleanup(void)
{
if (cib_api) {
cib_api->cmds->signoff(cib_api);
}
if (ipcs) {
qb_ipcs_destroy(ipcs);
}
crm_peer_destroy();
crm_client_cleanup();
free(stonith_our_uname);
}
/* *INDENT-OFF* */
static struct crm_option long_options[] = {
{"stand-alone", 0, 0, 's'},
{"stand-alone-w-cpg", 0, 0, 'c'},
{"verbose", 0, 0, 'V'},
{"version", 0, 0, '$'},
{"help", 0, 0, '?'},
{0, 0, 0, 0}
};
/* *INDENT-ON* */
static void
setup_cib(void)
{
int rc, retries = 0;
static cib_t *(*cib_new_fn) (void) = NULL;
if (cib_new_fn == NULL) {
cib_new_fn = find_library_function(&cib_library, CIB_LIBRARY, "cib_new", TRUE);
}
if (cib_new_fn != NULL) {
cib_api = (*cib_new_fn) ();
}
if (cib_api == NULL) {
crm_err("No connection to the CIB");
return;
}
do {
sleep(retries);
rc = cib_api->cmds->signon(cib_api, CRM_SYSTEM_CRMD, cib_command);
} while (rc == -ENOTCONN && ++retries < 5);
if (rc != pcmk_ok) {
crm_err("Could not connect to the CIB service: %s (%d)", pcmk_strerror(rc), rc);
} else if (pcmk_ok !=
cib_api->cmds->add_notify_callback(cib_api, T_CIB_DIFF_NOTIFY, update_cib_cache_cb)) {
crm_err("Could not set CIB notification callback");
} else {
rc = cib_api->cmds->query(cib_api, NULL, NULL, cib_scope_local);
cib_api->cmds->register_callback(cib_api, rc, 120, FALSE, NULL, "init_cib_cache_cb",
init_cib_cache_cb);
cib_api->cmds->set_connection_dnotify(cib_api, cib_connection_destroy);
crm_notice("Watching for stonith topology changes");
}
}
struct qb_ipcs_service_handlers ipc_callbacks = {
.connection_accept = st_ipc_accept,
.connection_created = st_ipc_created,
.msg_process = st_ipc_dispatch,
.connection_closed = st_ipc_closed,
.connection_destroyed = st_ipc_destroy
};
static void
st_peer_update_callback(enum crm_status_type type, crm_node_t * node, const void *data)
{
/*
* This is a hack until we can send to a nodeid and/or we fix node name lookups
* These messages are ignored in stonith_peer_callback()
*/
xmlNode *query = create_xml_node(NULL, "stonith_command");
crm_xml_add(query, F_XML_TAGNAME, "stonith_command");
crm_xml_add(query, F_TYPE, T_STONITH_NG);
crm_xml_add(query, F_STONITH_OPERATION, "poke");
crm_debug("Broadcasting our uname because of node %u", node->id);
send_cluster_message(NULL, crm_msg_stonith_ng, query, FALSE);
free_xml(query);
}
int
main(int argc, char **argv)
{
int flag;
int rc = 0;
int lpc = 0;
int argerr = 0;
int option_index = 0;
crm_cluster_t cluster;
const char *actions[] = { "reboot", "off", "list", "monitor", "status" };
crm_log_init("stonith-ng", LOG_INFO, TRUE, FALSE, argc, argv, FALSE);
crm_set_options(NULL, "mode [options]", long_options,
"Provides a summary of cluster's current state."
"\n\nOutputs varying levels of detail in a number of different formats.\n");
while (1) {
flag = crm_get_option(argc, argv, &option_index);
if (flag == -1) {
break;
}
switch (flag) {
case 'V':
crm_bump_log_level(argc, argv);
break;
case 's':
stand_alone = TRUE;
break;
case 'c':
stand_alone = FALSE;
no_cib_connect = TRUE;
break;
case '$':
case '?':
crm_help(flag, EX_OK);
break;
default:
++argerr;
break;
}
}
if (argc - optind == 1 && safe_str_eq("metadata", argv[optind])) {
printf("<?xml version=\"1.0\"?><!DOCTYPE resource-agent SYSTEM \"ra-api-1.dtd\">\n");
printf("<resource-agent name=\"stonithd\">\n");
printf(" <version>1.0</version>\n");
printf
(" <longdesc lang=\"en\">This is a fake resource that details the instance attributes handled by stonithd.</longdesc>\n");
printf(" <shortdesc lang=\"en\">Options available for all stonith resources</shortdesc>\n");
printf(" <parameters>\n");
printf(" <parameter name=\"stonith-timeout\" unique=\"0\">\n");
printf
(" <shortdesc lang=\"en\">How long to wait for the STONITH action to complete per a stonith device.</shortdesc>\n");
printf
(" <longdesc lang=\"en\">Overrides the stonith-timeout cluster property</longdesc>\n");