diff --git a/fencing/commands.c b/fencing/commands.c
index 9bb397768a..fa9de2fd73 100644
--- a/fencing/commands.c
+++ b/fencing/commands.c
@@ -1,1591 +1,1610 @@
/*
* 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/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 <crm/crm.h>
#include <crm/msg_xml.h>
#include <crm/common/ipc.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 <internal.h>
GHashTable *device_list = NULL;
GHashTable *topology = NULL;
GList *cmd_list = NULL;
static int active_children = 0;
static gboolean stonith_device_dispatch(gpointer user_data);
static void st_child_done(GPid pid, int rc, const char *output, gpointer user_data);
typedef struct async_command_s {
int id;
int pid;
int fd_stdout;
int options;
int default_timeout;
int timeout;
char *op;
char *origin;
char *client;
char *client_name;
char *remote_op_id;
char *victim;
char *action;
char *device;
char *mode;
GListPtr device_list;
GListPtr device_next;
void (*done)(GPid pid, int rc, const char *output, gpointer user_data);
guint timer_sigterm;
guint timer_sigkill;
/*! If the operation timed out, this is the last signal
* we sent to the process to get it to terminate */
int last_timeout_signo;
} async_command_t;
static xmlNode *
stonith_construct_async_reply(async_command_t *cmd, const char *output, xmlNode *data, int rc);
static int
get_action_timeout(stonith_device_t *device, const char *action, int default_timeout)
{
char buffer[512] = { 0, };
char *value = NULL;
CRM_CHECK(action != NULL, return default_timeout);
if (!device->params) {
return default_timeout;
}
snprintf(buffer, sizeof(buffer) - 1, "pcmk_%s_timeout", action);
value = g_hash_table_lookup(device->params, buffer);
if (!value) {
return default_timeout;
}
return atoi(value);
}
static void free_async_command(async_command_t *cmd)
{
if (!cmd) {
return;
}
cmd_list = g_list_remove(cmd_list, cmd);
g_list_free(cmd->device_list);
free(cmd->device);
free(cmd->action);
free(cmd->victim);
free(cmd->remote_op_id);
free(cmd->client);
free(cmd->client_name);
free(cmd->origin);
free(cmd->op);
free(cmd);
}
static async_command_t *create_async_command(xmlNode *msg)
{
async_command_t *cmd = NULL;
xmlNode *op = get_xpath_object("//@"F_STONITH_ACTION, msg, LOG_ERR);
const char *action = crm_element_value(op, F_STONITH_ACTION);
CRM_CHECK(action != NULL, crm_log_xml_warn(msg, "NoAction"); return NULL);
crm_log_xml_trace(msg, "Command");
cmd = calloc(1, sizeof(async_command_t));
crm_element_value_int(msg, F_STONITH_CALLID, &(cmd->id));
crm_element_value_int(msg, F_STONITH_CALLOPTS, &(cmd->options));
crm_element_value_int(msg, F_STONITH_TIMEOUT, &(cmd->default_timeout));
cmd->timeout = cmd->default_timeout;
cmd->origin = crm_element_value_copy(msg, F_ORIG);
cmd->remote_op_id = crm_element_value_copy(msg, F_STONITH_REMOTE_OP_ID);
cmd->client = crm_element_value_copy(msg, F_STONITH_CLIENTID);
cmd->client_name = crm_element_value_copy(msg, F_STONITH_CLIENTNAME);
cmd->op = crm_element_value_copy(msg, F_STONITH_OPERATION);
cmd->action = strdup(action);
cmd->victim = crm_element_value_copy(op, F_STONITH_TARGET);
cmd->mode = crm_element_value_copy(op, F_STONITH_MODE);
cmd->device = crm_element_value_copy(op, F_STONITH_DEVICE);
CRM_CHECK(cmd->op != NULL, crm_log_xml_warn(msg, "NoOp"); free_async_command(cmd); return NULL);
CRM_CHECK(cmd->client != NULL, crm_log_xml_warn(msg, "NoClient"));
cmd_list = g_list_append(cmd_list, cmd);
return cmd;
}
static int stonith_manual_ack(xmlNode *msg, remote_fencing_op_t *op)
{
async_command_t *cmd = create_async_command(msg);
xmlNode *dev = get_xpath_object("//@"F_STONITH_TARGET, msg, LOG_ERR);
if(cmd == NULL) {
return -EINVAL;
}
cmd->device = strdup("manual_ack");
cmd->remote_op_id = strdup(op->id);
crm_notice("Injecting manual confirmation that %s is safely off/down",
crm_element_value(dev, F_STONITH_TARGET));
st_child_done(0, 0, NULL, cmd);
return pcmk_ok;
}
static gboolean stonith_device_execute(stonith_device_t *device)
{
int rc = 0;
int exec_rc = 0;
async_command_t *cmd = NULL;
stonith_action_t *action = NULL;
CRM_CHECK(device != NULL, return FALSE);
if(device->active_pid) {
crm_trace("%s is still active with pid %u", device->id, device->active_pid);
return TRUE;
}
if(device->pending_ops) {
GList *first = device->pending_ops;
device->pending_ops = g_list_remove_link(device->pending_ops, first);
cmd = first->data;
g_list_free_1(first);
}
if(cmd == NULL) {
crm_trace("Nothing further to do for %s", device->id);
return TRUE;
}
action = stonith_action_create(device->agent,
cmd->action,
cmd->victim,
cmd->timeout,
device->params,
device->aliases);
exec_rc = stonith_action_execute_async(action, (void *) cmd, st_child_done);
if(exec_rc > 0) {
crm_debug("Operation %s%s%s on %s now running with pid=%d, timeout=%dms",
cmd->action, cmd->victim?" for node ":"", cmd->victim?cmd->victim:"",
device->id, exec_rc, cmd->timeout);
device->active_pid = exec_rc;
} else {
crm_warn("Operation %s%s%s on %s failed (%d/%d)",
cmd->action, cmd->victim?" for node ":"", cmd->victim?cmd->victim:"",
device->id, exec_rc, rc);
st_child_done(0, rc<0?rc:exec_rc, NULL, cmd);
}
return TRUE;
}
static gboolean stonith_device_dispatch(gpointer user_data)
{
return stonith_device_execute(user_data);
}
static void schedule_stonith_command(async_command_t *cmd, stonith_device_t *device)
{
CRM_CHECK(cmd != NULL, return);
CRM_CHECK(device != NULL, return);
if (cmd->device) {
free(cmd->device);
}
cmd->device = strdup(device->id);
cmd->timeout = get_action_timeout(device, cmd->action, cmd->default_timeout);
if (cmd->remote_op_id) {
crm_debug("Scheduling %s on %s for remote peer %s with op id (%s) (timeout=%dms)",
cmd->action,
device->id,
cmd->origin,
cmd->remote_op_id,
cmd->timeout);
} else {
crm_debug("Scheduling %s on %s for %s (timeout=%dms)",
cmd->action,
device->id,
cmd->client,
cmd->timeout);
}
device->pending_ops = g_list_append(device->pending_ops, cmd);
mainloop_set_trigger(device->work);
}
void free_device(gpointer data)
{
GListPtr gIter = NULL;
stonith_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);
st_child_done(0, -ENODEV, NULL, cmd);
free_async_command(cmd);
}
g_list_free(device->pending_ops);
g_list_free_full(device->targets, free);
free(device->namespace);
free(device->agent);
free(device->id);
free(device);
}
static GHashTable *build_port_aliases(const char *hostmap, GListPtr *targets)
{
char *name = NULL;
int last = 0, lpc = 0, max = 0, added = 0;
GHashTable *aliases = g_hash_table_new_full(crm_str_hash, g_str_equal, g_hash_destroy_str, g_hash_destroy_str);
if(hostmap == NULL) {
return aliases;
}
max = strlen(hostmap);
for(; lpc <= max; lpc++) {
switch(hostmap[lpc]) {
/* Assignment chars */
case '=':
case ':':
if(lpc > last) {
free(name);
name = calloc(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;
value = calloc(1, 1 + lpc - last);
memcpy(value, hostmap + last, lpc - last);
crm_debug("Adding alias '%s'='%s'", name, value);
g_hash_table_replace(aliases, name, value);
if(targets) {
*targets = g_list_append(*targets, strdup(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;
}
static void parse_host_line(const char *line, GListPtr *output)
{
int lpc = 0;
int max = 0;
int last = 0;
if(line) {
max = strlen(line);
} else {
return;
}
/* Check for any complaints about additional parameters that the device doesn't understand */
if(strstr(line, "invalid") || strstr(line, "variable")) {
crm_debug("Skipping: %s", line);
return;
}
crm_trace("Processing: %s", line);
/* Skip initial whitespace */
for(lpc = 0; lpc <= max && isspace(line[lpc]); lpc++) {
last = lpc+1;
}
/* Now the actual content */
for(lpc = 0; lpc <= max; lpc++) {
gboolean a_space = isspace(line[lpc]);
if(a_space && lpc < max && isspace(line[lpc+1])) {
/* fast-forward to the end of the spaces */
} else if(a_space || line[lpc] == ',' || line[lpc] == 0) {
int rc = 1;
char *entry = NULL;
if(lpc != last) {
entry = calloc(1, 1 + lpc - last);
rc = sscanf(line+last, "%[a-zA-Z0-9_-.]", entry);
}
if(entry == NULL) {
/* Skip */
} else if(rc != 1) {
crm_warn("Could not parse (%d %d): %s", last, lpc, line+last);
} else if(safe_str_neq(entry, "on") && safe_str_neq(entry, "off")) {
crm_trace("Adding '%s'", entry);
*output = g_list_append(*output, entry);
entry = NULL;
}
free(entry);
last = lpc + 1;
}
}
}
static GListPtr parse_host_list(const char *hosts)
{
int lpc = 0;
int max = 0;
int last = 0;
GListPtr output = NULL;
if(hosts == NULL) {
return output;
}
max = strlen(hosts);
for(lpc = 0; lpc <= max; lpc++) {
if(hosts[lpc] == '\n' || hosts[lpc] == 0) {
char *line = NULL;
line = calloc(1, 2 + lpc - last);
snprintf(line, 1 + lpc - last, "%s", hosts+last);
parse_host_line(line, &output);
free(line);
last = lpc + 1;
}
}
return output;
}
static stonith_device_t *build_device_from_xml(xmlNode *msg)
{
xmlNode *dev = get_xpath_object("//"F_STONITH_DEVICE, msg, LOG_ERR);
stonith_device_t *device = NULL;
device = calloc(1, sizeof(stonith_device_t));
device->id = crm_element_value_copy(dev, XML_ATTR_ID);
device->agent = crm_element_value_copy(dev, "agent");
device->namespace = crm_element_value_copy(dev, "namespace");
device->params = xml2list(dev);
device->work = mainloop_add_trigger(G_PRIORITY_HIGH, stonith_device_dispatch, device);
/* TODO: Hook up priority */
return device;
}
static const char *
target_list_type(stonith_device_t *dev)
{
const char *check_type = NULL;
check_type = g_hash_table_lookup(dev->params, STONITH_ATTR_HOSTCHECK);
if(check_type == NULL) {
if(g_hash_table_lookup(dev->params, STONITH_ATTR_HOSTLIST)) {
check_type = "static-list";
} else if(g_hash_table_lookup(dev->params, STONITH_ATTR_HOSTMAP)) {
check_type = "static-list";
} else {
check_type = "dynamic-list";
}
}
return check_type;
}
static void
update_dynamic_list(stonith_device_t *dev)
{
time_t now = time(NULL);
/* Host/alias must be in the list output to be eligable 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->targets_age < 0) {
crm_trace("Port list queries disabled for %s", dev->id);
} else if(dev->targets == NULL || dev->targets_age + 60 < now) {
stonith_action_t *action = NULL;
char *output = NULL;
int rc = pcmk_ok;
int exec_rc = pcmk_ok;
if(dev->active_pid != 0) {
crm_notice("Port list query can not execute because device is busy, using cache: %s",
dev->targets ? "YES" : "NO");
return;
}
action = stonith_action_create(dev->agent, "list", NULL, 10, dev->params, NULL);
exec_rc = stonith_action_execute(action, &rc, &output);
if(rc != 0 && dev->active_pid == 0) {
/* This device probably only supports a single
* connection, which appears to already be in use,
* likely involved in a montior or (less likely)
* metadata operation.
*
* Avoid disabling port list queries in the hope that
* the op would succeed next time
*/
crm_info("Couldn't query ports for %s. Call failed with rc=%d and active_pid=%d: %s",
dev->agent, rc, dev->active_pid, output);
} else if(exec_rc < 0 || rc != 0) {
/* If we successfully got the targets earlier, don't disable. */
if (dev->targets) {
return;
}
crm_notice("Disabling port list queries for %s (%d/%d): %s",
dev->id, exec_rc, rc, output);
dev->targets_age = -1;
/* Fall back to status */
g_hash_table_replace(dev->params, strdup(STONITH_ATTR_HOSTCHECK), strdup("status"));
g_list_free_full(dev->targets, free);
dev->targets = NULL;
} else {
crm_info("Refreshing port list for %s", dev->id);
g_list_free_full(dev->targets, free);
dev->targets = parse_host_list(output);
dev->targets_age = now;
}
free(output);
}
}
/*!
* \internal
* \brief Checks to see if an identical device already exists in the device_list
*/
static stonith_device_t *
device_has_duplicate(stonith_device_t *device)
{
char *key = NULL;
char *value = NULL;
GHashTableIter gIter;
stonith_device_t *dup = g_hash_table_lookup(device_list, device->id);
if (!dup || safe_str_neq(dup->agent, device->agent)) {
return NULL;
}
g_hash_table_iter_init(&gIter, device->params);
while (g_hash_table_iter_next(&gIter, (void **) &key, (void **) &value)) {
char *other_value = g_hash_table_lookup(dup->params, key);
if (!other_value || safe_str_neq(other_value, value)) {
return NULL;
}
}
return dup;
}
-int stonith_device_register(xmlNode *msg, const char **desc)
+int stonith_device_register(xmlNode *msg, const char **desc, gboolean from_cib)
{
const char *value = NULL;
stonith_device_t *dup = NULL;
stonith_device_t *device = build_device_from_xml(msg);
value = g_hash_table_lookup(device->params, STONITH_ATTR_HOSTLIST);
if(value) {
device->targets = parse_host_list(value);
}
value = g_hash_table_lookup(device->params, STONITH_ATTR_HOSTMAP);
device->aliases = build_port_aliases(value, &(device->targets));
value = target_list_type(device);
if (safe_str_eq(value, "dynamic-list")) {
/* set the dynamic list during the register to guarantee we have
* targets cached */
update_dynamic_list(device);
}
if ((dup = device_has_duplicate(device))) {
crm_notice("Device '%s' already existed in device list (%d active devices)", device->id, g_hash_table_size(device_list));
free_device(device);
device = dup;
} else {
g_hash_table_replace(device_list, device->id, device);
crm_notice("Added '%s' to the device list (%d active devices)", device->id, g_hash_table_size(device_list));
}
if(desc) {
*desc = device->id;
}
+
+ if (from_cib) {
+ device->cib_registered = TRUE;
+ } else {
+ device->api_registered = TRUE;
+ }
+
return pcmk_ok;
}
-int stonith_device_remove(const char *id)
+int stonith_device_remove(const char *id, gboolean from_cib)
{
- if(g_hash_table_remove(device_list, id)) {
- crm_info("Removed '%s' from the device list (%d active devices)",
+ stonith_device_t *device = g_hash_table_lookup(device_list, id);
+
+ if (!device) {
+ crm_info("Device '%s' not found (%d active devices)",
id, g_hash_table_size(device_list));
+ return pcmk_ok;
+ }
+
+ if (from_cib) {
+ device->cib_registered = FALSE;
} else {
- crm_info("Device '%s' not found (%d active devices)",
+ device->api_registered = FALSE;
+ }
+
+ if (!device->cib_registered && !device->api_registered) {
+ g_hash_table_remove(device_list, id);
+ crm_info("Removed '%s' from the device list (%d active devices)",
id, g_hash_table_size(device_list));
}
return pcmk_ok;
}
static int count_active_levels(stonith_topology_t *tp)
{
int lpc = 0;
int count = 0;
for(lpc = 0; lpc < ST_LEVEL_MAX; lpc++) {
if(tp->levels[lpc] != NULL) {
count++;
}
}
return count;
}
void free_topology_entry(gpointer data)
{
stonith_topology_t *tp = data;
int lpc = 0;
for(lpc = 0; lpc < ST_LEVEL_MAX; lpc++) {
if(tp->levels[lpc] != NULL) {
g_list_free_full(tp->levels[lpc], free);
}
}
free(tp->node);
free(tp);
}
int stonith_level_register(xmlNode *msg, char **desc)
{
int id = 0;
int rc = pcmk_ok;
xmlNode *child = NULL;
xmlNode *level = get_xpath_object("//"F_STONITH_LEVEL, msg, LOG_ERR);
const char *node = crm_element_value(level, F_STONITH_TARGET);
stonith_topology_t *tp = g_hash_table_lookup(topology, node);
crm_element_value_int(level, XML_ATTR_ID, &id);
if(desc) {
*desc = g_strdup_printf("%s[%d]", node, id);
}
if(id <= 0 || id >= ST_LEVEL_MAX) {
return -EINVAL;
}
if(tp == NULL) {
tp = calloc(1, sizeof(stonith_topology_t));
tp->node = strdup(node);
g_hash_table_replace(topology, tp->node, tp);
crm_trace("Added %s to the topology (%d active entries)", node, g_hash_table_size(topology));
}
if(tp->levels[id] != NULL) {
crm_info("Adding to the existing %s[%d] topology entry (%d active entries)", node, id, count_active_levels(tp));
}
for (child = __xml_first_child(level); child != NULL; child = __xml_next(child)) {
const char *device = ID(child);
crm_trace("Adding device '%s' for %s (%d)", device, node, id);
tp->levels[id] = g_list_append(tp->levels[id], strdup(device));
}
crm_info("Node %s has %d active fencing levels", node, count_active_levels(tp));
return rc;
}
int stonith_level_remove(xmlNode *msg, char **desc)
{
int id = 0;
xmlNode *level = get_xpath_object("//"F_STONITH_LEVEL, msg, LOG_ERR);
const char *node = crm_element_value(level, F_STONITH_TARGET);
stonith_topology_t *tp = g_hash_table_lookup(topology, node);
if(desc) {
*desc = g_strdup_printf("%s[%d]", node, id);
}
crm_element_value_int(level, XML_ATTR_ID, &id);
if(tp == NULL) {
crm_info("Node %s not found (%d active entries)",
node, g_hash_table_size(topology));
return pcmk_ok;
} else if(id < 0 || id >= ST_LEVEL_MAX) {
return -EINVAL;
}
if(id == 0 && g_hash_table_remove(topology, node)) {
crm_info("Removed all %s related entries from the topology (%d active entries)",
node, g_hash_table_size(topology));
} else if(id > 0 && tp->levels[id] != NULL) {
g_list_free_full(tp->levels[id], free);
tp->levels[id] = NULL;
crm_info("Removed entry '%d' from %s's topology (%d active entries remaining)",
id, node, count_active_levels(tp));
}
return pcmk_ok;
}
static gboolean string_in_list(GListPtr list, const char *item)
{
int lpc = 0;
int max = g_list_length(list);
for(lpc = 0; lpc < max; lpc ++) {
const char *value = g_list_nth_data(list, lpc);
if(safe_str_eq(item, value)) {
return TRUE;
}
}
return FALSE;
}
static int stonith_device_action(xmlNode *msg, char **output)
{
int rc = pcmk_ok;
xmlNode *dev = get_xpath_object("//"F_STONITH_DEVICE, msg, LOG_ERR);
const char *id = crm_element_value(dev, F_STONITH_DEVICE);
async_command_t *cmd = NULL;
stonith_device_t *device = NULL;
if(id) {
crm_trace("Looking for '%s'", id);
device = g_hash_table_lookup(device_list, id);
}
if(device) {
cmd = create_async_command(msg);
if(cmd == NULL) {
free_device(device);
return -EPROTO;
}
schedule_stonith_command(cmd, device);
rc = -EINPROGRESS;
} else {
crm_info("Device %s not found", id?id:"<none>");
rc = -ENODEV;
}
return rc;
}
static gboolean can_fence_host_with_device(stonith_device_t *dev, const char *host)
{
gboolean can = FALSE;
const char *alias = host;
const char *check_type = NULL;
if(dev == NULL) {
return FALSE;
} else if(host == NULL) {
return TRUE;
}
if(g_hash_table_lookup(dev->aliases, host)) {
alias = g_hash_table_lookup(dev->aliases, host);
}
check_type = target_list_type(dev);
if(safe_str_eq(check_type, "none")) {
can = TRUE;
} else if(safe_str_eq(check_type, "static-list")) {
/* Presence in the hostmap is sufficient
* Only use if all hosts on which the device can be active can always fence all listed hosts
*/
if(string_in_list(dev->targets, host)) {
can = TRUE;
} else if(g_hash_table_lookup(dev->params, STONITH_ATTR_HOSTMAP)
&& g_hash_table_lookup(dev->aliases, host)) {
can = TRUE;
}
} else if(safe_str_eq(check_type, "dynamic-list")) {
update_dynamic_list(dev);
if(string_in_list(dev->targets, alias)) {
can = TRUE;
}
} else if(safe_str_eq(check_type, "status")) {
int rc = 0;
int exec_rc = 0;
stonith_action_t *action = NULL;
/* Run the status operation for the device/target combination
* Will cause problems if the device doesn't return 2 for down'd nodes or
* (for virtual nodes) if the device doesn't return 1 for guests that
* have been moved to another host
*/
action = stonith_action_create(dev->agent, "status", host, 5, dev->params, dev->aliases);
exec_rc = stonith_action_execute(action, &rc, NULL);
if(exec_rc != 0) {
crm_err("Could not invoke %s: rc=%d", dev->id, exec_rc);
} else if(rc == 1 /* unkown */) {
crm_trace("Host %s is not known by %s", host, dev->id);
} else if(rc == 0 /* active */ || rc == 2 /* inactive */) {
can = TRUE;
} else {
crm_notice("Unkown result when testing if %s can fence %s: rc=%d", dev->id, host, rc);
}
} else {
crm_err("Unknown check type: %s", check_type);
}
if(safe_str_eq(host, alias)) {
crm_info("%s can%s fence %s: %s", dev->id, can?"":" not", host, check_type);
} else {
crm_info("%s can%s fence %s (aka. '%s'): %s", dev->id, can?"":" not", host, alias, check_type);
}
return can;
}
struct device_search_s
{
const char *host;
GListPtr capable;
};
static void search_devices(
gpointer key, gpointer value, gpointer user_data)
{
stonith_device_t *dev = value;
struct device_search_s *search = user_data;
if(can_fence_host_with_device(dev, search->host)) {
search->capable = g_list_append(search->capable, value);
}
}
static int stonith_query(xmlNode *msg, xmlNode **list)
{
struct device_search_s search;
int available_devices = 0;
const char *action = NULL;
xmlNode *dev = get_xpath_object("//@"F_STONITH_ACTION, msg, LOG_DEBUG_3);
search.host = NULL;
search.capable = NULL;
if(dev) {
const char *device = crm_element_value(dev, F_STONITH_DEVICE);
search.host = crm_element_value(dev, F_STONITH_TARGET);
if(device && safe_str_eq(device, "manual_ack")) {
/* No query necessary */
if(list) {
*list = NULL;
}
return pcmk_ok;
}
action = crm_element_value(dev, F_STONITH_ACTION);
}
crm_log_xml_debug(msg, "Query");
g_hash_table_foreach(device_list, search_devices, &search);
available_devices = g_list_length(search.capable);
if(search.host) {
crm_debug("Found %d matching devices for '%s'",
available_devices, search.host);
} else {
crm_debug("%d devices installed", available_devices);
}
/* Pack the results into data */
if(list) {
GListPtr lpc = NULL;
*list = create_xml_node(NULL, __FUNCTION__);
crm_xml_add(*list, F_STONITH_TARGET, search.host);
crm_xml_add_int(*list, "st-available-devices", available_devices);
for(lpc = search.capable; lpc != NULL; lpc = lpc->next) {
stonith_device_t *device = (stonith_device_t*)lpc->data;
int action_specific_timeout = get_action_timeout(device, action, 0);
dev = create_xml_node(*list, F_STONITH_DEVICE);
crm_xml_add(dev, XML_ATTR_ID, device->id);
crm_xml_add(dev, "namespace", device->namespace);
crm_xml_add(dev, "agent", device->agent);
crm_xml_add_int(dev, F_STONITH_DEVICE_VERIFIED, device->verified);
if (action_specific_timeout) {
crm_xml_add_int(dev, F_STONITH_ACTION_TIMEOUT, action_specific_timeout);
}
if(search.host == NULL) {
xmlNode *attrs = create_xml_node(dev, XML_TAG_ATTRS);
g_hash_table_foreach(device->params, hash2field, attrs);
}
}
}
g_list_free(search.capable);
return available_devices;
}
#define ST_LOG_OUTPUT_MAX 512
static void log_operation(async_command_t *cmd, int rc, int pid, const char *next, const char *output)
{
if(rc == 0) {
next = NULL;
}
if(cmd->victim != NULL) {
do_crm_log(rc==0?LOG_NOTICE:LOG_ERR,
"Operation '%s' [%d] (call %d from %s) for host '%s' with device '%s' returned: %d (%s)%s%s",
cmd->action, pid, cmd->id, cmd->client_name, cmd->victim, cmd->device, rc, pcmk_strerror(rc),
next?". Trying: ":"", next?next:"");
} else {
do_crm_log_unlikely(rc==0?LOG_DEBUG:LOG_NOTICE,
"Operation '%s' [%d] for device '%s' returned: %d (%s)%s%s",
cmd->action, pid, cmd->device, rc, pcmk_strerror(rc), next?". Trying: ":"", next?next:"");
}
if(output) {
/* Logging the whole string confuses syslog when the string is xml */
char *local_copy = strdup(output);
int lpc = 0, last = 0, more = strlen(local_copy);
/* Give the log output some reasonable boundary */
more = more > ST_LOG_OUTPUT_MAX ? ST_LOG_OUTPUT_MAX : more;
for(lpc = 0; lpc < more; lpc++) {
if(local_copy[lpc] == '\n' || local_copy[lpc] == 0) {
local_copy[lpc] = 0;
do_crm_log(rc==0?LOG_INFO:LOG_WARNING, "%s: %s",
cmd->device, local_copy+last);
last = lpc+1;
}
}
crm_debug("%s: %s (total %d bytes)", cmd->device, local_copy+last, more);
free(local_copy);
}
}
static void
stonith_send_async_reply(async_command_t *cmd, const char *output, int rc, GPid pid)
{
xmlNode *reply = NULL;
gboolean bcast = FALSE;
reply = stonith_construct_async_reply(cmd, output, NULL, rc);
if(safe_str_eq(cmd->action, "metadata")) {
/* Too verbose to log */
crm_trace("Metadata query for %s", cmd->device);
output = NULL;
} else if(crm_str_eq(cmd->action, "monitor", TRUE) ||
crm_str_eq(cmd->action, "list", TRUE) ||
crm_str_eq(cmd->action, "status", TRUE)) {
crm_trace("Never broadcast %s replies", cmd->action);
} else if(!stand_alone && safe_str_eq(cmd->origin, cmd->victim)) {
crm_trace("Broadcast %s reply for %s", cmd->action, cmd->victim);
crm_xml_add(reply, F_SUBTYPE, "broadcast");
bcast = TRUE;
}
log_operation(cmd, rc, pid, NULL, output);
crm_log_xml_trace(reply, "Reply");
if(bcast) {
crm_xml_add(reply, F_STONITH_OPERATION, T_STONITH_NOTIFY);
send_cluster_message(NULL, crm_msg_stonith_ng, reply, FALSE);
} else if(cmd->origin) {
crm_trace("Directed reply to %s", cmd->origin);
send_cluster_message(crm_get_peer(0, cmd->origin), crm_msg_stonith_ng, reply, FALSE);
} else {
crm_trace("Directed local %ssync reply to %s",
(cmd->options & st_opt_sync_call)?"":"a-", cmd->client_name);
do_local_reply(reply, cmd->client, cmd->options & st_opt_sync_call, FALSE);
}
if(stand_alone) {
/* Do notification with a clean data object */
xmlNode *notify_data = create_xml_node(NULL, T_STONITH_NOTIFY_FENCE);
crm_xml_add_int(notify_data, F_STONITH_RC, rc);
crm_xml_add(notify_data, F_STONITH_TARGET, cmd->victim);
crm_xml_add(notify_data, F_STONITH_OPERATION, cmd->op);
crm_xml_add(notify_data, F_STONITH_DELEGATE, cmd->device);
crm_xml_add(notify_data, F_STONITH_REMOTE_OP_ID, cmd->remote_op_id);
crm_xml_add(notify_data, F_STONITH_ORIGIN, cmd->client);
do_stonith_notify(0, T_STONITH_NOTIFY_FENCE, rc, notify_data);
}
free_xml(reply);
}
static void cancel_stonith_command(async_command_t *cmd)
{
stonith_device_t *device;
CRM_CHECK(cmd != NULL, return);
if (!cmd->device) {
return;
}
device = g_hash_table_lookup(device_list, cmd->device);
if (device) {
crm_trace("Cancel scheduled %s on %s", cmd->action, device->id);
device->pending_ops = g_list_remove(device->pending_ops, cmd);
}
}
#define READ_MAX 500
static void st_child_done(GPid pid, int rc, const char *output, gpointer user_data)
{
stonith_device_t *device = NULL;
async_command_t *cmd = user_data;
GListPtr gIter = NULL;
GListPtr gIterNext = NULL;
CRM_CHECK(cmd != NULL, return);
active_children--;
/* The device is ready to do something else now */
device = g_hash_table_lookup(device_list, cmd->device);
if(device) {
device->active_pid = 0;
if (rc == pcmk_ok &&
(safe_str_eq(cmd->action, "list") ||
safe_str_eq(cmd->action, "monitor") ||
safe_str_eq(cmd->action, "status"))) {
device->verified = TRUE;
}
mainloop_set_trigger(device->work);
}
crm_trace("Operation %s on %s completed with rc=%d (%d remaining)",
cmd->action, cmd->device, rc, g_list_length(cmd->device_next));
if(rc != 0 && cmd->device_next) {
stonith_device_t *dev = cmd->device_next->data;
log_operation(cmd, rc, pid, dev->id, output);
cmd->device_next = cmd->device_next->next;
schedule_stonith_command(cmd, dev);
/* Prevent cmd from being freed */
cmd = NULL;
goto done;
}
if(rc > 0) {
rc = -pcmk_err_generic;
}
stonith_send_async_reply(cmd, output, rc, pid);
if(rc != 0) {
goto done;
}
/* Check to see if any operations are scheduled to do the exact
* same thing that just completed. If so, rather than
* performing the same fencing operation twice, return the result
* of this operation for all pending commands it matches. */
for (gIter = cmd_list; gIter != NULL; gIter = gIterNext) {
async_command_t *cmd_other = gIter->data;
gIterNext = gIter->next;
if(cmd == cmd_other) {
continue;
}
/* A pending scheduled command matches the command that just finished if.
* 1. The client connections are different.
* 2. The node victim is the same.
* 3. The fencing action is the same.
* 4. The device scheduled to execute the action is the same.
*/
if(safe_str_eq(cmd->client, cmd_other->client) ||
safe_str_neq(cmd->victim, cmd_other->victim) ||
safe_str_neq(cmd->action, cmd_other->action) ||
safe_str_neq(cmd->device, cmd_other->device)) {
continue;
}
crm_notice("Merging stonith action %s for node %s originating from client %s with identical stonith request from client %s",
cmd_other->action,
cmd_other->victim,
cmd_other->client_name,
cmd->client_name);
cmd_list = g_list_remove_link(cmd_list, gIter);
stonith_send_async_reply(cmd_other, output, rc, pid);
cancel_stonith_command(cmd_other);
free_async_command(cmd_other);
g_list_free_1(gIter);
}
done:
free_async_command(cmd);
}
static gint sort_device_priority(gconstpointer a, gconstpointer b)
{
const stonith_device_t *dev_a = a;
const stonith_device_t *dev_b = a;
if(dev_a->priority > dev_b->priority) {
return -1;
} else if(dev_a->priority < dev_b->priority) {
return 1;
}
return 0;
}
static int stonith_fence(xmlNode *msg)
{
int options = 0;
const char *device_id = NULL;
stonith_device_t *device = NULL;
async_command_t *cmd = create_async_command(msg);
xmlNode *dev = get_xpath_object("//@"F_STONITH_TARGET, msg, LOG_ERR);
if(cmd == NULL) {
return -EPROTO;
}
device_id = crm_element_value(dev, F_STONITH_DEVICE);
if(device_id) {
device = g_hash_table_lookup(device_list, device_id);
if(device == NULL) {
crm_err("Requested device '%s' is not available", device_id);
}
} else {
struct device_search_s search;
search.capable = NULL;
search.host = crm_element_value(dev, F_STONITH_TARGET);
crm_element_value_int(msg, F_STONITH_CALLOPTS, &options);
if(options & st_opt_cs_nodeid) {
int nodeid = crm_atoi(search.host, NULL);
crm_node_t *node = crm_get_peer(nodeid, NULL);
if(node) {
search.host = node->uname;
}
}
g_hash_table_foreach(device_list, search_devices, &search);
crm_info("Found %d matching devices for '%s'", g_list_length(search.capable), search.host);
if(g_list_length(search.capable) > 0) {
/* Order based on priority */
search.capable = g_list_sort(search.capable, sort_device_priority);
device = search.capable->data;
if(g_list_length(search.capable) > 1) {
cmd->device_list = search.capable;
cmd->device_next = cmd->device_list->next;
} else {
g_list_free(search.capable);
}
}
}
if(device) {
schedule_stonith_command(cmd, device);
return -EINPROGRESS;
}
free_async_command(cmd);
return -EHOSTUNREACH;
}
xmlNode *stonith_construct_reply(xmlNode *request, char *output, xmlNode *data, int rc)
{
int lpc = 0;
xmlNode *reply = NULL;
const char *name = NULL;
const char *value = NULL;
const char *names[] = {
F_STONITH_OPERATION,
F_STONITH_CALLID,
F_STONITH_CLIENTID,
F_STONITH_CLIENTNAME,
F_STONITH_REMOTE_OP_ID,
F_STONITH_CALLOPTS
};
crm_trace("Creating a basic reply");
reply = create_xml_node(NULL, T_STONITH_REPLY);
crm_xml_add(reply, "st_origin", __FUNCTION__);
crm_xml_add(reply, F_TYPE, T_STONITH_NG);
crm_xml_add(reply, "st_output", output);
crm_xml_add_int(reply, F_STONITH_RC, rc);
CRM_CHECK(request != NULL, crm_warn("Can't create a sane reply"); return reply);
for(lpc = 0; lpc < DIMOF(names); lpc++) {
name = names[lpc];
value = crm_element_value(request, name);
crm_xml_add(reply, name, value);
}
if(data != NULL) {
crm_trace("Attaching reply output");
add_message_xml(reply, F_STONITH_CALLDATA, data);
}
return reply;
}
static xmlNode *
stonith_construct_async_reply(async_command_t *cmd, const char *output, xmlNode *data, int rc)
{
xmlNode *reply = NULL;
crm_trace("Creating a basic reply");
reply = create_xml_node(NULL, T_STONITH_REPLY);
crm_xml_add(reply, "st_origin", __FUNCTION__);
crm_xml_add(reply, F_TYPE, T_STONITH_NG);
crm_xml_add(reply, F_STONITH_OPERATION, cmd->op);
crm_xml_add(reply, F_STONITH_DEVICE, cmd->device);
crm_xml_add(reply, F_STONITH_REMOTE_OP_ID, cmd->remote_op_id);
crm_xml_add(reply, F_STONITH_CLIENTID, cmd->client);
crm_xml_add(reply, F_STONITH_CLIENTNAME, cmd->client_name);
crm_xml_add(reply, F_STONITH_TARGET, cmd->victim);
crm_xml_add(reply, F_STONITH_ACTION, cmd->op);
crm_xml_add(reply, F_STONITH_ORIGIN, cmd->origin);
crm_xml_add_int(reply, F_STONITH_CALLID, cmd->id);
crm_xml_add_int(reply, F_STONITH_CALLOPTS, cmd->options);
crm_xml_add_int(reply, F_STONITH_RC, rc);
crm_xml_add(reply, "st_output", output);
if(data != NULL) {
crm_info("Attaching reply output");
add_message_xml(reply, F_STONITH_CALLDATA, data);
}
return reply;
}
/*!
* \internal
* \brief Determine if we need to use an alternate node to
* fence the target. If so return that node's uname
*
* \retval NULL, no alternate host
* \retval uname, uname of alternate host to use
*/
static const char *
check_alternate_host(const char *target)
{
const char *alternate_host = NULL;
if(g_hash_table_lookup(topology, target) && safe_str_eq(target, stonith_our_uname)) {
GHashTableIter gIter;
crm_node_t *entry = NULL;
int membership = crm_proc_plugin | crm_proc_heartbeat | crm_proc_cpg;
g_hash_table_iter_init(&gIter, crm_peer_cache);
while (g_hash_table_iter_next(&gIter, NULL, (void **)&entry)) {
crm_trace("Checking for %s.%d != %s",
entry->uname, entry->id, target);
if(entry->uname
&& (entry->processes & membership)
&& safe_str_neq(entry->uname, target)) {
alternate_host = entry->uname;
break;
}
}
if(alternate_host == NULL) {
crm_err("No alternate host available to handle complex self fencing request");
g_hash_table_iter_init(&gIter, crm_peer_cache);
while (g_hash_table_iter_next(&gIter, NULL, (void **)&entry)) {
crm_notice("Peer[%d] %s", entry->id, entry->uname);
}
}
}
return alternate_host;
}
static int
handle_request(stonith_client_t *client, uint32_t id, uint32_t flags, xmlNode *request, const char *remote_peer)
{
int call_options = 0;
int rc = -EOPNOTSUPP;
gboolean always_reply = FALSE;
xmlNode *reply = NULL;
xmlNode *data = NULL;
char *output = NULL;
const char *op = crm_element_value(request, F_STONITH_OPERATION);
const char *client_id = crm_element_value(request, F_STONITH_CLIENTID);
crm_element_value_int(request, F_STONITH_CALLOPTS, &call_options);
if(is_set(call_options, st_opt_sync_call)) {
CRM_ASSERT(client == NULL || client->request_id == id);
}
if(crm_str_eq(op, CRM_OP_REGISTER, TRUE)) {
xmlNode *reply = create_xml_node(NULL, "reply");
CRM_ASSERT(client);
crm_xml_add(reply, F_STONITH_OPERATION, CRM_OP_REGISTER);
crm_xml_add(reply, F_STONITH_CLIENTID, client->id);
crm_ipcs_send(client->channel, id, reply, FALSE);
client->request_id = 0;
free_xml(reply);
return 0;
} else if(crm_str_eq(op, STONITH_OP_EXEC, TRUE)) {
rc = stonith_device_action(request, &output);
} else if (crm_str_eq(op, STONITH_OP_TIMEOUT_UPDATE, TRUE)) {
const char *call_id = crm_element_value(request, F_STONITH_CALLID);
const char *client_id = crm_element_value(request, F_STONITH_CLIENTID);
int op_timeout = 0;
crm_element_value_int(request, F_STONITH_TIMEOUT, &op_timeout);
do_stonith_async_timeout_update(client_id, call_id, op_timeout);
return 0;
} else if(crm_str_eq(op, STONITH_OP_QUERY, TRUE)) {
if (remote_peer) {
create_remote_stonith_op(client_id, request, TRUE); /* Record it for the future notification */
}
rc = stonith_query(request, &data);
always_reply = TRUE;
if(!data) {
return 0;
}
} else if(crm_str_eq(op, T_STONITH_NOTIFY, TRUE)) {
const char *flag_name = NULL;
CRM_ASSERT(client);
flag_name = crm_element_value(request, F_STONITH_NOTIFY_ACTIVATE);
if(flag_name) {
crm_debug("Setting %s callbacks for %s (%s): ON",
flag_name, client->name, client->id);
client->flags |= get_stonith_flag(flag_name);
}
flag_name = crm_element_value(request, F_STONITH_NOTIFY_DEACTIVATE);
if(flag_name) {
crm_debug("Setting %s callbacks for %s (%s): off",
flag_name, client->name, client->id);
client->flags |= get_stonith_flag(flag_name);
}
if(flags & crm_ipc_client_response) {
crm_ipcs_send_ack(client->channel, id, "ack", __FUNCTION__, __LINE__);
client->request_id = 0;
}
return 0;
} else if(crm_str_eq(op, STONITH_OP_RELAY, TRUE)) {
xmlNode *dev = get_xpath_object("//@"F_STONITH_TARGET, request, LOG_TRACE);
crm_notice("Peer %s has received a forwarded fencing request from %s to fence (%s) peer %s",
stonith_our_uname,
client ? client->name : remote_peer,
crm_element_value(dev, F_STONITH_ACTION),
crm_element_value(dev, F_STONITH_TARGET));
if(initiate_remote_stonith_op(NULL, request, FALSE) != NULL) {
rc = -EINPROGRESS;
}
} else if(crm_str_eq(op, STONITH_OP_FENCE, TRUE)) {
if(remote_peer || stand_alone) {
rc = stonith_fence(request);
} else if(call_options & st_opt_manual_ack) {
remote_fencing_op_t *rop = initiate_remote_stonith_op(client, request, TRUE);
rc = stonith_manual_ack(request, rop);
} else {
const char *alternate_host = NULL;
xmlNode *dev = get_xpath_object("//@"F_STONITH_TARGET, request, LOG_TRACE);
const char *target = crm_element_value(dev, F_STONITH_TARGET);
const char *action = crm_element_value(dev, F_STONITH_ACTION);
const char *device = crm_element_value(dev, F_STONITH_DEVICE);
if(client) {
int tolerance = 0;
crm_notice("Client %s.%.8s wants to fence (%s) '%s' with device '%s'",
client->name, client->id, action, target, device?device:"(any)");
crm_element_value_int(dev, F_STONITH_TOLERANCE, &tolerance);
if(stonith_check_fence_tolerance(tolerance, target, action)) {
rc = 0;
goto done;
}
} else {
crm_notice("Peer %s wants to fence (%s) '%s' with device '%s'",
remote_peer, action, target, device?device:"(any)");
}
alternate_host = check_alternate_host(target);
if(alternate_host) {
crm_notice("Forwarding complex self fencing request to peer %s", alternate_host);
crm_xml_add(request, F_STONITH_OPERATION, STONITH_OP_RELAY);
crm_xml_add(request, F_STONITH_CLIENTID, client->id);
send_cluster_message(crm_get_peer(0, alternate_host), crm_msg_stonith_ng, request, FALSE);
rc = -EINPROGRESS;
} else if(initiate_remote_stonith_op(client, request, FALSE) != NULL) {
rc = -EINPROGRESS;
}
}
} else if (crm_str_eq(op, STONITH_OP_FENCE_HISTORY, TRUE)) {
rc = stonith_fence_history(request, &data);
always_reply = TRUE;
} else if(crm_str_eq(op, STONITH_OP_DEVICE_ADD, TRUE)) {
const char *id = NULL;
xmlNode *notify_data = create_xml_node(NULL, op);
- rc = stonith_device_register(request, &id);
+ rc = stonith_device_register(request, &id, FALSE);
crm_xml_add(notify_data, F_STONITH_DEVICE, id);
crm_xml_add_int(notify_data, F_STONITH_ACTIVE, g_hash_table_size(device_list));
do_stonith_notify(call_options, op, rc, notify_data);
free_xml(notify_data);
} else if(crm_str_eq(op, STONITH_OP_DEVICE_DEL, TRUE)) {
xmlNode *dev = get_xpath_object("//"F_STONITH_DEVICE, request, LOG_ERR);
const char *id = crm_element_value(dev, XML_ATTR_ID);
xmlNode *notify_data = create_xml_node(NULL, op);
- rc = stonith_device_remove(id);
+ rc = stonith_device_remove(id, FALSE);
crm_xml_add(notify_data, F_STONITH_DEVICE, id);
crm_xml_add_int(notify_data, F_STONITH_ACTIVE, g_hash_table_size(device_list));
do_stonith_notify(call_options, op, rc, notify_data);
free_xml(notify_data);
} else if(crm_str_eq(op, STONITH_OP_LEVEL_ADD, TRUE)) {
char *id = NULL;
xmlNode *notify_data = create_xml_node(NULL, op);
rc = stonith_level_register(request, &id);
crm_xml_add(notify_data, F_STONITH_DEVICE, id);
crm_xml_add_int(notify_data, F_STONITH_ACTIVE, g_hash_table_size(topology));
do_stonith_notify(call_options, op, rc, notify_data);
free_xml(notify_data);
} else if(crm_str_eq(op, STONITH_OP_LEVEL_DEL, TRUE)) {
char *id = NULL;
xmlNode *notify_data = create_xml_node(NULL, op);
rc = stonith_level_remove(request, &id);
crm_xml_add(notify_data, F_STONITH_DEVICE, id);
crm_xml_add_int(notify_data, F_STONITH_ACTIVE, g_hash_table_size(topology));
do_stonith_notify(call_options, op, rc, notify_data);
free_xml(notify_data);
} else if(crm_str_eq(op, STONITH_OP_CONFIRM, TRUE)) {
async_command_t *cmd = create_async_command(request);
xmlNode *reply = stonith_construct_async_reply(cmd, NULL, NULL, 0);
crm_xml_add(reply, F_STONITH_OPERATION, T_STONITH_NOTIFY);
crm_notice("Broadcasting manual fencing confirmation for node %s", cmd->victim);
send_cluster_message(NULL, crm_msg_stonith_ng, reply, FALSE);
free_async_command(cmd);
free_xml(reply);
} else {
crm_err("Unknown %s from %s", op, client ? client->name : remote_peer);
crm_log_xml_warn(request, "UnknownOp");
}
done:
if (rc == -EINPROGRESS) {
/* Nothing (yet) */
} else if(remote_peer) {
reply = stonith_construct_reply(request, output, data, rc);
send_cluster_message(crm_get_peer(0, remote_peer), crm_msg_stonith_ng, reply, FALSE);
free_xml(reply);
} else if(rc <= pcmk_ok || always_reply) {
reply = stonith_construct_reply(request, output, data, rc);
do_local_reply(reply, client_id, call_options & st_opt_sync_call, remote_peer!=NULL);
free_xml(reply);
}
free(output);
free_xml(data);
return rc;
}
static void
handle_reply(stonith_client_t *client, xmlNode *request, const char *remote_peer)
{
const char *op = crm_element_value(request, F_STONITH_OPERATION);
if(crm_str_eq(op, STONITH_OP_QUERY, TRUE)) {
process_remote_stonith_query(request);
} else if(crm_str_eq(op, T_STONITH_NOTIFY, TRUE)) {
process_remote_stonith_exec(request);
} else if(crm_str_eq(op, STONITH_OP_FENCE, TRUE)) {
/* Reply to a complex fencing op */
process_remote_stonith_exec(request);
} else {
crm_err("Unknown %s reply from %s", op, client ? client->name : remote_peer);
crm_log_xml_warn(request, "UnknownOp");
}
}
void
stonith_command(stonith_client_t *client, uint32_t id, uint32_t flags, xmlNode *request, const char *remote_peer)
{
int call_options = 0;
int rc = 0;
gboolean is_reply = FALSE;
const char *op = crm_element_value(request, F_STONITH_OPERATION);
if(get_xpath_object("//"T_STONITH_REPLY, request, LOG_DEBUG_3)) {
is_reply = TRUE;
}
crm_element_value_int(request, F_STONITH_CALLOPTS, &call_options);
crm_debug("Processing %s%s from %s (%16x)", op, is_reply?" reply":"",
client?client->name:remote_peer, call_options);
if(is_set(call_options, st_opt_sync_call)) {
CRM_ASSERT(client == NULL || client->request_id == id);
}
if (is_reply) {
handle_reply(client, request, remote_peer);
} else {
rc = handle_request(client, id, flags, request, remote_peer);
}
do_crm_log_unlikely(rc>0?LOG_DEBUG:LOG_INFO,"Processed %s%s from %s: %s (%d)", op, is_reply?" reply":"",
client?client->name:remote_peer, rc>0?"":pcmk_strerror(rc), rc);
}
diff --git a/fencing/internal.h b/fencing/internal.h
index 94824cb5bf..20ddd746de 100644
--- a/fencing/internal.h
+++ b/fencing/internal.h
@@ -1,166 +1,168 @@
#include <crm/common/mainloop.h>
/*!
* \internal
* \brief Check to see if target was fenced in the last few seconds.
* \param tolerance, The number of seconds to look back in time
* \param target, The node to search for
* \param action, The action we want to match.
*
* \retval FALSE, not match
* \retval TRUE, fencing operation took place in the last 'tolerance' number of seconds.
*/
gboolean
stonith_check_fence_tolerance(int tolerance, const char *target, const char *action);
typedef struct stonith_device_s {
char *id;
char *agent;
char *namespace;
GListPtr targets;
time_t targets_age;
gboolean has_attr_map;
guint priority;
guint active_pid;
GHashTable *params;
GHashTable *aliases;
GList *pending_ops;
crm_trigger_t *work;
/*! A verified device is one that has contacted the
* agent successfully to perform a monitor operation */
gboolean verified;
+ gboolean cib_registered;
+ gboolean api_registered;
} stonith_device_t;
typedef struct stonith_client_s {
char *id;
char *name;
int pid;
int request_id;
char *channel_name;
qb_ipcs_connection_t *channel;
long long flags;
} stonith_client_t;
typedef struct remote_fencing_op_s {
/* The unique id associated with this operation */
char *id;
/*! The node this operation will fence */
char *target;
/*! The fencing action to perform on the target. (reboot, on, off) */
char *action;
/*! Marks if the final notifications have been sent to local stonith clients. */
gboolean notify_sent;
/*! The number of query replies received */
guint replies;
/*! Does this node own control of this operation */
gboolean owner;
/*! After query is complete, This the high level timer that expires the entire operation */
guint op_timer_total;
/*! This timer expires the current fencing request. Many fencing
* requests may exist in a single operation */
guint op_timer_one;
/*! This timer expires the query request sent out to determine
* what nodes are contain what devices, and who those devices can fence */
guint query_timer;
/*! This is the default timeout to use for each fencing device if no
* custom timeout is received in the query. */
gint base_timeout;
/*! This is the calculated total timeout an operation can take before
* expiring. This is calculated by adding together all the timeout
* values associated with the devices this fencing operation may call */
gint total_timeout;
/*! Delegate is the node being asked to perform a fencing action
* on behalf of the node that owns the remote operation. Some operations
* will involve multiple delegates. This value represents the final delegate
* that is used. */
char *delegate;
/*! The point at which the remote operation completed */
time_t completed;
/*! The stonith_call_options associated with this remote operation */
long long call_options;
/*! The current state of the remote operation. This indicates
* what phase the op is in, query, exec, done, duplicate, failed. */
enum op_state state;
/*! The node that owns the remote operation */
char *originator;
/*! The local client id that initiated the fencing request */
char *client_id;
/*! The name of client that initiated the fencing request */
char *client_name;
/*! List of the received query results for all the nodes in the cpg group */
GListPtr query_results;
/*! The original request that initiated the remote stonith operation */
xmlNode *request;
/*! The current topology level being executed */
guint level;
/*! The device list of all the devices at the current executing topology level. */
GListPtr devices;
/*! List of duplicate operations attached to this operation. Once this operation
* completes, the duplicate operations will be closed out as well. */
GListPtr duplicates;
} remote_fencing_op_t;
typedef struct stonith_topology_s {
char *node;
GListPtr levels[ST_LEVEL_MAX];
} stonith_topology_t;
extern long long get_stonith_flag(const char *name);
extern void stonith_command(stonith_client_t * client, uint32_t id, uint32_t flags, xmlNode * op_request, const char *remote_peer);
-extern int stonith_device_register(xmlNode * msg, const char **desc);
+extern int stonith_device_register(xmlNode * msg, const char **desc, gboolean from_cib);
-extern int stonith_device_remove(const char *id);
+extern int stonith_device_remove(const char *id, gboolean from_cib);
extern int stonith_level_register(xmlNode * msg, char **desc);
extern int stonith_level_remove(xmlNode * msg, char **desc);
extern void do_local_reply(xmlNode * notify_src, const char *client_id, gboolean sync_reply,
gboolean from_peer);
extern xmlNode *stonith_construct_reply(xmlNode * request, char *output, xmlNode * data, int rc);
void
do_stonith_async_timeout_update(const char *client, const char *call_id, int timeout);
extern void do_stonith_notify(int options, const char *type, int result, xmlNode * data);
extern remote_fencing_op_t *initiate_remote_stonith_op(stonith_client_t * client, xmlNode * request,
gboolean manual_ack);
extern int process_remote_stonith_exec(xmlNode * msg);
extern int process_remote_stonith_query(xmlNode * msg);
extern void *create_remote_stonith_op(const char *client, xmlNode * request, gboolean peer);
extern int stonith_fence_history(xmlNode * msg, xmlNode ** output);
extern void free_device(gpointer data);
extern void free_topology_entry(gpointer data);
extern char *stonith_our_uname;
extern gboolean stand_alone;
extern GHashTable *device_list;
extern GHashTable *topology;
extern GHashTable *client_list;
diff --git a/fencing/main.c b/fencing/main.c
index cbbb19145f..407d51f68e 100644
--- a/fencing/main.c
+++ b/fencing/main.c
@@ -1,1075 +1,1075 @@
/*
* 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/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 <internal.h>
#include <standalone_config.h>
char *stonith_our_uname = NULL;
GMainLoop *mainloop = NULL;
GHashTable *client_list = NULL;
gboolean stand_alone = FALSE;
gboolean no_cib_connect = FALSE;
gboolean stonith_shutdown_flag = FALSE;
qb_ipcs_service_t *ipcs = 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)
{
crm_trace("Connecting %p for uid=%d gid=%d", c, uid, gid);
if(stonith_shutdown_flag) {
crm_info("Ignoring new client [%d] during shutdown", crm_ipcs_client_pid(c));
return -EPERM;
}
return 0;
}
static void
st_ipc_created(qb_ipcs_connection_t *c)
{
stonith_client_t *new_client = NULL;
#if 0
struct qb_ipcs_stats srv_stats;
qb_ipcs_stats_get(s1, &srv_stats, QB_FALSE);
qb_log(LOG_INFO, "Connection created (active:%d, closed:%d)",
srv_stats.active_connections,
srv_stats.closed_connections);
#endif
new_client = calloc(1, sizeof(stonith_client_t));
new_client->channel = c;
new_client->pid = crm_ipcs_client_pid(c);
new_client->channel_name = strdup("ipc");
CRM_CHECK(new_client->id == NULL, free(new_client->id));
new_client->id = crm_generate_uuid();
crm_trace("Created channel %p for client %s", c, new_client->id);
/* make sure we can find ourselves later for sync calls
* redirected to the master instance
*/
g_hash_table_insert(client_list, new_client->id, new_client);
qb_ipcs_context_set(c, new_client);
CRM_ASSERT(qb_ipcs_context_get(c) != NULL);
}
/* Exit code means? */
static int32_t
st_ipc_dispatch(qb_ipcs_connection_t *c, void *data, size_t size)
{
uint32_t id = 0;
uint32_t flags = 0;
xmlNode *request = NULL;
stonith_client_t *client = (stonith_client_t*)qb_ipcs_context_get(c);
request = crm_ipcs_recv(c, data, size, &id, &flags);
if (request == NULL) {
crm_ipcs_send_ack(c, id, "nack", __FUNCTION__, __LINE__);
return 0;
}
CRM_CHECK(client != NULL, goto cleanup);
if(client->name == NULL) {
const char *value = crm_element_value(request, F_STONITH_CLIENTNAME);
if(value == NULL) {
value = "unknown";
}
client->name = g_strdup_printf("%s.%u", value, client->pid);
}
CRM_CHECK(client->id != NULL, crm_err("Invalid client: %p/%s", client, client->name); goto cleanup);
if(flags & crm_ipc_client_response) {
CRM_LOG_ASSERT(client->request_id == 0); /* This means the client has two synchronous events in-flight */
client->request_id = id; /* Reply only to the last one */
}
crm_xml_add(request, F_STONITH_CLIENTID, client->id);
crm_xml_add(request, F_STONITH_CLIENTNAME, client->name);
crm_xml_add(request, F_STONITH_CLIENTNODE, stonith_our_uname);
crm_log_xml_trace(request, "Client[inbound]");
stonith_command(client, id, flags, request, NULL);
cleanup:
if(client == NULL || client->id == 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)
{
stonith_client_t *client = (stonith_client_t*)qb_ipcs_context_get(c);
#if 0
qb_ipcs_stats_get(s1, &srv_stats, QB_FALSE);
qb_ipcs_connection_stats_get(c, &stats, QB_FALSE);
qb_log(LOG_INFO, "Connection to pid:%d destroyed (active:%d, closed:%d)",
stats.client_pid,
srv_stats.active_connections,
srv_stats.closed_connections);
qb_log(LOG_DEBUG, " Requests %"PRIu64"", stats.requests);
qb_log(LOG_DEBUG, " Responses %"PRIu64"", stats.responses);
qb_log(LOG_DEBUG, " Events %"PRIu64"", stats.events);
qb_log(LOG_DEBUG, " Send retries %"PRIu64"", stats.send_retries);
qb_log(LOG_DEBUG, " Recv retries %"PRIu64"", stats.recv_retries);
qb_log(LOG_DEBUG, " FC state %d", stats.flow_control_state);
qb_log(LOG_DEBUG, " FC count %"PRIu64"", stats.flow_control_count);
#endif
if (client == NULL) {
crm_err("No client");
return 0;
}
crm_trace("Cleaning up after client disconnect: %p/%s/%s", client, crm_str(client->name), client->id);
if(client->id != NULL) {
g_hash_table_remove(client_list, client->id);
}
/* 0 means: yes, go ahead and destroy the connection */
return 0;
}
static void
st_ipc_destroy(qb_ipcs_connection_t *c)
{
stonith_client_t *client = (stonith_client_t*)qb_ipcs_context_get(c);
/* Make sure the connection is fully cleaned up */
st_ipc_closed(c);
if(client == NULL) {
crm_trace("Nothing to destroy");
return;
}
crm_trace("Destroying %s (%p)", client->name, client);
free(client->name);
free(client->id);
free(client);
crm_trace("Done");
return;
}
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 */
stonith_client_t *client_obj = NULL;
int local_rc = pcmk_ok;
crm_trace("Sending response");
if(client_id != NULL) {
client_obj = g_hash_table_lookup(client_list, client_id);
} else {
crm_trace("No client to sent the response to."
" F_STONITH_CLIENTID not set.");
}
crm_trace("Sending callback to request originator");
if(client_obj == NULL) {
local_rc = -1;
} 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->channel, 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;
stonith_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->channel == NULL) {
crm_trace("Skipping client with NULL channel");
return;
} else if(client->name == NULL) {
crm_trace("Skipping unnammed client / comamnd channel");
return;
}
if(client->flags & get_stonith_flag(type)) {
int rc = crm_ipcs_send(client->channel, 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, client->name, client->id, pcmk_strerror(rc), rc);
} else {
crm_trace("Sent %s notification to client %s.%.6s", type, client->name, client->id);
}
}
}
void
do_stonith_async_timeout_update(const char *client_id, const char *call_id, int timeout)
{
stonith_client_t *client = NULL;
xmlNode *notify_data = NULL;
if (!timeout || !call_id || !client_id) {
return;
}
client = g_hash_table_lookup(client_list, 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->channel) {
crm_ipcs_send(client->channel, 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_list, 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);
+ 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_cib_device(xmlXPathObjectPtr xpathObj, gboolean force)
{
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 *agent = NULL;
const char *standard = NULL;
const char *provider = NULL;
stonith_key_value_t *params = NULL;
xmlNode *match = getXpathResult(xpathObj, lpc);
xmlNode *attributes;
xmlNode *attr;
xmlNode *data;
CRM_CHECK(match != NULL, continue);
standard = crm_element_value(match, XML_AGENT_ATTR_CLASS);
agent = crm_element_value(match, XML_EXPR_ATTR_TYPE);
provider = crm_element_value(match, XML_AGENT_ATTR_PROVIDER);
if (safe_str_neq(standard, "stonith") || !agent) {
continue;
}
rsc_id = crm_element_value(match, XML_ATTR_ID);
attributes = find_xml_node(match, XML_TAG_ATTR_SETS, FALSE);
for (attr = __xml_first_child(attributes); attr; attr = __xml_next(attr)) {
const char *name = crm_element_value(attr, XML_NVPAIR_ATTR_NAME);
const char *value = crm_element_value(attr, XML_NVPAIR_ATTR_VALUE);
if (!name || !value) {
continue;
}
params = stonith_key_value_add(params, name, value);
}
data = create_device_registration_xml(rsc_id,
provider,
agent,
params);
if(force == FALSE && crm_element_value(match, XML_DIFF_MARKER)) {
- stonith_device_register(data, NULL);
+ stonith_device_register(data, NULL, TRUE);
} else {
- stonith_device_remove(rsc_id);
- stonith_device_register(data, NULL);
+ stonith_device_remove(rsc_id, TRUE);
+ stonith_device_register(data, NULL, TRUE);
}
}
}
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) {
xmlXPathFreeObject(xpathObj);
}
}
static void
cib_stonith_devices_init(xmlNode *msg)
{
xmlXPathObjectPtr xpathObj = NULL;
const char *xpath = "//" XML_CIB_TAG_RESOURCE;
crm_trace("Pushing in stonith devices");
/* Grab everything */
xpathObj = xpath_search(msg, xpath);
if(xpathObj) {
register_cib_device(xpathObj, TRUE);
xmlXPathFreeObject(xpathObj);
}
}
static void
update_cib_stonith_devices(const char *event, xmlNode * msg)
{
const char *xpath_add = "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_ADDED "//" XML_CIB_TAG_RESOURCE;
const char *xpath_del = "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_REMOVED "//" XML_CIB_TAG_RESOURCE;
xmlXPathObjectPtr xpath_obj = NULL;
/* process deletions */
xpath_obj = xpath_search(msg, xpath_del);
if (xpath_obj) {
remove_cib_device(xpath_obj);
xmlXPathFreeObject(xpath_obj);
}
/* process additions */
xpath_obj = xpath_search(msg, xpath_add);
if (xpath_obj) {
register_cib_device(xpath_obj, FALSE);
xmlXPathFreeObject(xpath_obj);
}
}
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) {
xmlXPathFreeObject(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) {
xmlXPathFreeObject(xpathObj);
}
}
static void
update_cib_cache_cb(const char *event, xmlNode * msg)
{
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)
{
fencing_topology_init(msg);
cib_stonith_devices_init(msg);
}
static void
stonith_shutdown(int nsig)
{
stonith_shutdown_flag = TRUE;
crm_info("Terminating with %d clients", g_hash_table_size(client_list));
if(mainloop != NULL && g_main_is_running(mainloop)) {
g_main_quit(mainloop);
} else {
stonith_cleanup();
exit(EX_OK);
}
}
cib_t *cib = NULL;
static void
stonith_cleanup(void)
{
if(cib) {
cib->cmds->signoff(cib);
}
if(ipcs) {
qb_ipcs_destroy(ipcs);
}
crm_peer_destroy();
g_hash_table_destroy(client_list);
free(stonith_our_uname);
#if HAVE_LIBXML2
crm_xml_cleanup();
#endif
}
/* *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)
{
static void *cib_library = NULL;
static cib_t *(*cib_new_fn)(void) = NULL;
static const char *(*cib_err_fn)(int) = NULL;
int rc, retries = 0;
if(cib_library == NULL) {
cib_library = dlopen(CIB_LIBRARY, RTLD_LAZY);
}
if(cib_library && cib_new_fn == NULL) {
cib_new_fn = dlsym(cib_library, "cib_new");
}
if(cib_library && cib_err_fn == NULL) {
cib_err_fn = dlsym(cib_library, "pcmk_strerror");
}
if(cib_new_fn != NULL) {
cib = (*cib_new_fn)();
}
if(cib == NULL) {
crm_err("No connection to the CIB");
return;
}
do {
sleep(retries);
rc = cib->cmds->signon(cib, CRM_SYSTEM_CRMD, cib_command);
} while(rc == -ENOTCONN && ++retries < 5);
if (rc != pcmk_ok) {
crm_err("Could not connect to the CIB service: %d %p", rc, cib_err_fn);
} else if (pcmk_ok != cib->cmds->add_notify_callback(
cib, T_CIB_DIFF_NOTIFY, update_cib_cache_cb)) {
crm_err("Could not set CIB notification callback");
} else {
rc = cib->cmds->query(cib, NULL, NULL, cib_scope_local);
add_cib_op_callback(cib, rc, FALSE, NULL, init_cib_cache_cb);
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");
printf(" <content type=\"time\" default=\"60s\"/>\n");
printf(" </parameter>\n");
printf(" <parameter name=\"priority\" unique=\"0\">\n");
printf(" <shortdesc lang=\"en\">The priority of the stonith resource. The lower the number, the higher the priority.</shortdesc>\n");
printf(" <content type=\"integer\" default=\"0\"/>\n");
printf(" </parameter>\n");
printf(" <parameter name=\"%s\" unique=\"0\">\n", STONITH_ATTR_HOSTARG);
printf(" <shortdesc lang=\"en\">Advanced use only: An alternate parameter to supply instead of 'port'</shortdesc>\n");
printf(" <longdesc lang=\"en\">Some devices do not support the standard 'port' parameter or may provide additional ones.\n"
"Use this to specify an alternate, device-specific, parameter that should indicate the machine to be fenced.\n"
"A value of 'none' can be used to tell the cluster not to supply any additional parameters.\n"
" </longdesc>\n");
printf(" <content type=\"string\" default=\"port\"/>\n");
printf(" </parameter>\n");
printf(" <parameter name=\"%s\" unique=\"0\">\n", STONITH_ATTR_HOSTMAP);
printf(" <shortdesc lang=\"en\">A mapping of host names to ports numbers for devices that do not support host names.</shortdesc>\n");
printf(" <longdesc lang=\"en\">Eg. node1:1;node2:2,3 would tell the cluster to use port 1 for node1 and ports 2 and 3 for node2</longdesc>\n");
printf(" <content type=\"string\" default=\"\"/>\n");
printf(" </parameter>\n");
printf(" <parameter name=\"%s\" unique=\"0\">\n", STONITH_ATTR_HOSTLIST);
printf(" <shortdesc lang=\"en\">A list of machines controlled by this device (Optional unless %s=static-list).</shortdesc>\n", STONITH_ATTR_HOSTCHECK);
printf(" <content type=\"string\" default=\"\"/>\n");
printf(" </parameter>\n");
printf(" <parameter name=\"%s\" unique=\"0\">\n", STONITH_ATTR_HOSTCHECK);
printf(" <shortdesc lang=\"en\">How to determin which machines are controlled by the device.</shortdesc>\n");
printf(" <longdesc lang=\"en\">Allowed values: dynamic-list (query the device), static-list (check the %s attribute), none (assume every device can fence every machine)</longdesc>\n", STONITH_ATTR_HOSTLIST);
printf(" <content type=\"string\" default=\"dynamic-list\"/>\n");
printf(" </parameter>\n");
for(lpc = 0; lpc < DIMOF(actions); lpc++) {
printf(" <parameter name=\"pcmk_%s_action\" unique=\"0\">\n", actions[lpc]);
printf(" <shortdesc lang=\"en\">Advanced use only: An alternate command to run instead of '%s'</shortdesc>\n", actions[lpc]);
printf(" <longdesc lang=\"en\">Some devices do not support the standard commands or may provide additional ones.\n"
"Use this to specify an alternate, device-specific, command that implements the '%s' action.</longdesc>\n", actions[lpc]);
printf(" <content type=\"string\" default=\"%s\"/>\n", actions[lpc]);
printf(" </parameter>\n");
}
printf(" </parameters>\n");
printf("</resource-agent>\n");
return 0;
}
if (optind != argc) {
++argerr;
}
if (argerr) {
crm_help('?', EX_USAGE);
}
mainloop_add_signal(SIGTERM, stonith_shutdown);
crm_peer_init();
client_list = g_hash_table_new(crm_str_hash, g_str_equal);
if(stand_alone == FALSE) {
#if SUPPORT_HEARTBEAT
cluster.hb_dispatch = stonith_peer_hb_callback;
cluster.destroy = stonith_peer_hb_destroy;
#endif
if(is_openais_cluster()) {
#if SUPPORT_COROSYNC
cluster.destroy = stonith_peer_ais_destroy;
cluster.cs_dispatch = stonith_peer_ais_callback;
#endif
}
if(crm_cluster_connect(&cluster) == FALSE) {
crm_crit("Cannot sign in to the cluster... terminating");
exit(100);
} else {
stonith_our_uname = cluster.uname;
}
stonith_our_uname = cluster.uname;
if (no_cib_connect == FALSE) {
setup_cib();
}
} else {
stonith_our_uname = strdup("localhost");
}
crm_set_status_callback(&st_peer_update_callback);
device_list = g_hash_table_new_full(
crm_str_hash, g_str_equal, NULL, free_device);
topology = g_hash_table_new_full(
crm_str_hash, g_str_equal, NULL, free_topology_entry);
ipcs = mainloop_add_ipc_server("stonith-ng", QB_IPC_NATIVE, &ipc_callbacks);
#if SUPPORT_STONITH_CONFIG
if (((stand_alone == TRUE)) && !(standalone_cfg_read_file(STONITH_NG_CONF_FILE))) {
standalone_cfg_commit();
}
#endif
if(ipcs != NULL) {
/* Create the mainloop and run it... */
mainloop = g_main_new(FALSE);
crm_info("Starting %s mainloop", crm_system_name);
g_main_run(mainloop);
} else {
crm_err("Couldnt start all communication channels, exiting.");
}
stonith_cleanup();
#if SUPPORT_HEARTBEAT
if(cluster.hb_conn) {
cluster.hb_conn->llc_ops->delete(cluster.hb_conn);
}
#endif
crm_info("Done");
qb_log_fini();
return rc;
}
diff --git a/lrmd/lrmd.c b/lrmd/lrmd.c
index c38f280989..69fc3bad9b 100644
--- a/lrmd/lrmd.c
+++ b/lrmd/lrmd.c
@@ -1,1168 +1,1167 @@
/*
* Copyright (c) 2012 David Vossel <dvossel@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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 <glib.h>
#include <unistd.h>
#include <crm/crm.h>
#include <crm/services.h>
#include <crm/common/mainloop.h>
#include <crm/common/ipc.h>
#include <crm/msg_xml.h>
#include <lrmd_private.h>
#ifdef HAVE_SYS_TIMEB_H
# include <sys/timeb.h>
#endif
GHashTable *rsc_list = NULL;
GHashTable *client_list = NULL;
typedef struct lrmd_cmd_s {
int timeout;
int interval;
int start_delay;
int call_id;
int exec_rc;
int lrmd_op_status;
int call_opts;
/* Timer ids, must be removed on cmd destruction. */
int delay_id;
int stonith_recurring_id;
int rsc_deleted;
char *client_id;
char *origin;
char *rsc_id;
char *action;
char *output;
char *userdata_str;
#ifdef HAVE_SYS_TIMEB_H
/* Timestamp of when op ran */
struct timeb t_run;
/* Timestamp of when op was queued */
struct timeb t_queue;
/* Timestamp of last rc change */
struct timeb t_rcchange;
#endif
int first_notify_sent;
int last_notify_rc;
int last_notify_op_status;
GHashTable *params;
} lrmd_cmd_t;
static void cmd_finalize(lrmd_cmd_t * cmd, lrmd_rsc_t * rsc);
static gboolean lrmd_rsc_dispatch(gpointer user_data);
static void cancel_all_recurring(lrmd_rsc_t *rsc, const char *client_id);
static lrmd_rsc_t *
build_rsc_from_xml(xmlNode * msg)
{
xmlNode *rsc_xml = get_xpath_object("//" F_LRMD_RSC, msg, LOG_ERR);
lrmd_rsc_t *rsc = NULL;
rsc = calloc(1, sizeof(lrmd_rsc_t));
crm_element_value_int(msg, F_LRMD_CALLOPTS, &rsc->call_opts);
rsc->rsc_id = crm_element_value_copy(rsc_xml, F_LRMD_RSC_ID);
rsc->class = crm_element_value_copy(rsc_xml, F_LRMD_CLASS);
rsc->provider = crm_element_value_copy(rsc_xml, F_LRMD_PROVIDER);
rsc->type = crm_element_value_copy(rsc_xml, F_LRMD_TYPE);
rsc->work = mainloop_add_trigger(G_PRIORITY_HIGH, lrmd_rsc_dispatch, rsc);
return rsc;
}
static lrmd_cmd_t *
create_lrmd_cmd(xmlNode * msg, lrmd_client_t * client)
{
int call_options = 0;
xmlNode *rsc_xml = get_xpath_object("//" F_LRMD_RSC, msg, LOG_ERR);
lrmd_cmd_t *cmd = NULL;
cmd = calloc(1, sizeof(lrmd_cmd_t));
crm_element_value_int(msg, F_LRMD_CALLOPTS, &call_options);
cmd->call_opts = call_options;
cmd->client_id = strdup(client->id);
crm_element_value_int(msg, F_LRMD_CALLID, &cmd->call_id);
crm_element_value_int(rsc_xml, F_LRMD_RSC_INTERVAL, &cmd->interval);
crm_element_value_int(rsc_xml, F_LRMD_TIMEOUT, &cmd->timeout);
crm_element_value_int(rsc_xml, F_LRMD_RSC_START_DELAY, &cmd->start_delay);
cmd->origin = crm_element_value_copy(rsc_xml, F_LRMD_ORIGIN);
cmd->action = crm_element_value_copy(rsc_xml, F_LRMD_RSC_ACTION);
cmd->userdata_str = crm_element_value_copy(rsc_xml, F_LRMD_RSC_USERDATA_STR);
cmd->rsc_id = crm_element_value_copy(rsc_xml, F_LRMD_RSC_ID);
cmd->params = xml2list(rsc_xml);
return cmd;
}
static void
free_lrmd_cmd(lrmd_cmd_t * cmd)
{
if (cmd->stonith_recurring_id) {
g_source_remove(cmd->stonith_recurring_id);
}
if (cmd->delay_id) {
g_source_remove(cmd->delay_id);
}
if (cmd->params) {
g_hash_table_destroy(cmd->params);
}
free(cmd->origin);
free(cmd->action);
free(cmd->userdata_str);
free(cmd->rsc_id);
free(cmd->output);
free(cmd->client_id);
free(cmd);
}
static gboolean
stonith_recurring_op_helper(gpointer data)
{
lrmd_cmd_t *cmd = data;
lrmd_rsc_t *rsc;
cmd->stonith_recurring_id = 0;
if (!cmd->rsc_id) {
return FALSE;
}
rsc = g_hash_table_lookup(rsc_list, cmd->rsc_id);
CRM_ASSERT(rsc != NULL);
/* take it out of recurring_ops list, and put it in the pending ops
* to be executed */
rsc->recurring_ops = g_list_remove(rsc->recurring_ops, cmd);
rsc->pending_ops = g_list_append(rsc->pending_ops, cmd);
#ifdef HAVE_SYS_TIMEB_H
ftime(&cmd->t_queue);
#endif
mainloop_set_trigger(rsc->work);
return FALSE;
}
static gboolean
start_delay_helper(gpointer data)
{
lrmd_cmd_t *cmd = data;
lrmd_rsc_t *rsc = NULL;
cmd->delay_id = 0;
rsc = cmd->rsc_id ? g_hash_table_lookup(rsc_list, cmd->rsc_id) : NULL;
if (rsc) {
mainloop_set_trigger(rsc->work);
}
return FALSE;
}
static void
schedule_lrmd_cmd(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
{
CRM_CHECK(cmd != NULL, return);
CRM_CHECK(rsc != NULL, return);
crm_trace("Scheduling %s on %s", cmd->action, rsc->rsc_id);
rsc->pending_ops = g_list_append(rsc->pending_ops, cmd);
#ifdef HAVE_SYS_TIMEB_H
ftime(&cmd->t_queue);
#endif
mainloop_set_trigger(rsc->work);
if (cmd->start_delay) {
cmd->delay_id = g_timeout_add(cmd->start_delay, start_delay_helper, cmd);
}
}
static void
send_reply(lrmd_client_t * client, int rc, uint32_t id, int call_id)
{
int send_rc = 0;
xmlNode *reply = NULL;
reply = create_xml_node(NULL, T_LRMD_REPLY);
crm_xml_add(reply, F_LRMD_ORIGIN, __FUNCTION__);
crm_xml_add_int(reply, F_LRMD_RC, rc);
crm_xml_add_int(reply, F_LRMD_CALLID, call_id);
send_rc = crm_ipcs_send(client->channel, id, reply, FALSE);
free_xml(reply);
if (send_rc < 0) {
crm_warn("LRMD reply to %s failed: %d", client->name, send_rc);
}
}
static void
send_client_notify(gpointer key, gpointer value, gpointer user_data)
{
xmlNode *update_msg = user_data;
lrmd_client_t *client = value;
if (client == NULL) {
crm_err("Asked to send event to NULL client");
return;
} else if (client->channel == NULL) {
crm_trace("Asked to send event to disconnected client");
return;
} else if (client->name == NULL) {
crm_trace("Asked to send event to client with no name");
return;
}
if (crm_ipcs_send(client->channel, 0, update_msg, TRUE) <= 0) {
crm_warn("Notification of client %s/%s failed", client->name, client->id);
}
}
#ifdef HAVE_SYS_TIMEB_H
static int
time_diff_ms(struct timeb *now, struct timeb *old)
{
int sec = difftime(now->time, old->time);
int ms = now->millitm - old->millitm;
if (old->time == 0) {
return 0;
}
return (sec * 1000) + ms;
}
#endif
static void
send_cmd_complete_notify(lrmd_cmd_t * cmd)
{
#ifdef HAVE_SYS_TIMEB_H
struct timeb now = { 0, };
#endif
xmlNode *notify = NULL;
/* if the first notify result for a cmd has already been sent earlier, and the
* the option to only send notifies on result changes is set. Check to see
* if the last result is the same as the new one. If so, suppress this update */
if (cmd->first_notify_sent && (cmd->call_opts & lrmd_opt_notify_changes_only)) {
if (cmd->last_notify_rc == cmd->exec_rc &&
cmd->last_notify_op_status == cmd->lrmd_op_status) {
/* only send changes */
return;
}
}
cmd->first_notify_sent = 1;
cmd->last_notify_rc = cmd->exec_rc;
cmd->last_notify_op_status = cmd->lrmd_op_status;
notify = create_xml_node(NULL, T_LRMD_NOTIFY);
crm_xml_add(notify, F_LRMD_ORIGIN, __FUNCTION__);
crm_xml_add_int(notify, F_LRMD_TIMEOUT, cmd->timeout);
crm_xml_add_int(notify, F_LRMD_RSC_INTERVAL, cmd->interval);
crm_xml_add_int(notify, F_LRMD_RSC_START_DELAY, cmd->start_delay);
crm_xml_add_int(notify, F_LRMD_EXEC_RC, cmd->exec_rc);
crm_xml_add_int(notify, F_LRMD_OP_STATUS, cmd->lrmd_op_status);
crm_xml_add_int(notify, F_LRMD_CALLID, cmd->call_id);
crm_xml_add_int(notify, F_LRMD_RSC_DELETED, cmd->rsc_deleted);
#ifdef HAVE_SYS_TIMEB_H
ftime(&now);
crm_xml_add_int(notify, F_LRMD_RSC_RUN_TIME, cmd->t_run.time);
crm_xml_add_int(notify, F_LRMD_RSC_RCCHANGE_TIME, cmd->t_rcchange.time);
crm_xml_add_int(notify, F_LRMD_RSC_EXEC_TIME, time_diff_ms(&now, &cmd->t_run));
crm_xml_add_int(notify, F_LRMD_RSC_QUEUE_TIME, time_diff_ms(&cmd->t_run, &cmd->t_queue));
#endif
crm_xml_add(notify, F_LRMD_OPERATION, LRMD_OP_RSC_EXEC);
crm_xml_add(notify, F_LRMD_RSC_ID, cmd->rsc_id);
crm_xml_add(notify, F_LRMD_RSC_ACTION, cmd->action);
crm_xml_add(notify, F_LRMD_RSC_USERDATA_STR, cmd->userdata_str);
crm_xml_add(notify, F_LRMD_RSC_OUTPUT, cmd->output);
if (cmd->params) {
char *key = NULL;
char *value = NULL;
GHashTableIter iter;
xmlNode *args = create_xml_node(notify, XML_TAG_ATTRS);
g_hash_table_iter_init(&iter, cmd->params);
while (g_hash_table_iter_next(&iter, (gpointer *) & key, (gpointer *) & value)) {
hash2field((gpointer) key, (gpointer) value, args);
}
}
if (cmd->client_id && (cmd->call_opts & lrmd_opt_notify_orig_only)) {
lrmd_client_t *client = g_hash_table_lookup(client_list, cmd->client_id);
if (client) {
send_client_notify(client->id, client, notify);
}
} else {
g_hash_table_foreach(client_list, send_client_notify, notify);
}
free_xml(notify);
}
static void
send_generic_notify(int rc, xmlNode * request)
{
int call_id = 0;
xmlNode *notify = NULL;
xmlNode *rsc_xml = get_xpath_object("//" F_LRMD_RSC, request, LOG_ERR);
const char *rsc_id = crm_element_value(rsc_xml, F_LRMD_RSC_ID);
const char *op = crm_element_value(request, F_LRMD_OPERATION);
crm_element_value_int(request, F_LRMD_CALLID, &call_id);
notify = create_xml_node(NULL, T_LRMD_NOTIFY);
crm_xml_add(notify, F_LRMD_ORIGIN, __FUNCTION__);
crm_xml_add_int(notify, F_LRMD_RC, rc);
crm_xml_add_int(notify, F_LRMD_CALLID, call_id);
crm_xml_add(notify, F_LRMD_OPERATION, op);
crm_xml_add(notify, F_LRMD_RSC_ID, rsc_id);
g_hash_table_foreach(client_list, send_client_notify, notify);
free_xml(notify);
}
static void
cmd_finalize(lrmd_cmd_t * cmd, lrmd_rsc_t * rsc)
{
crm_trace("Resource operation rsc:%s action:%s completed (%p %p)", cmd->rsc_id, cmd->action, rsc?rsc->active:NULL, cmd);
if (rsc && (rsc->active == cmd)) {
rsc->active = NULL;
mainloop_set_trigger(rsc->work);
}
if (!rsc) {
cmd->rsc_deleted = 1;
}
send_cmd_complete_notify(cmd);
/* crmd expects lrmd to automatically cancel recurring ops after rsc stops */
if (rsc && safe_str_eq(cmd->action, "stop")) {
cancel_all_recurring(rsc, NULL);
}
if (cmd->interval && (cmd->lrmd_op_status == PCMK_LRM_OP_CANCELLED)) {
if (rsc) {
rsc->recurring_ops = g_list_remove(rsc->recurring_ops, cmd);
rsc->pending_ops = g_list_remove(rsc->pending_ops, cmd);
}
free_lrmd_cmd(cmd);
} else if (cmd->interval == 0) {
if (rsc) {
rsc->pending_ops = g_list_remove(rsc->pending_ops, cmd);
}
free_lrmd_cmd(cmd);
} else {
/* Clear all the values pertaining just to the last iteration of a recurring op. */
cmd->lrmd_op_status = 0;
memset(&cmd->t_run, 0, sizeof(cmd->t_run));
memset(&cmd->t_queue, 0, sizeof(cmd->t_queue));
free(cmd->output);
cmd->output = NULL;
}
}
static int
lsb2uniform_rc(const char *action, int rc)
{
if (rc < 0) {
return PCMK_EXECRA_UNKNOWN_ERROR;
}
/* status has different return codes that everything else. */
if (!safe_str_eq(action, "status") && !safe_str_eq(action, "monitor")) {
if (rc > PCMK_LSB_NOT_RUNNING) {
return PCMK_EXECRA_UNKNOWN_ERROR;
}
return rc;
}
switch (rc) {
case PCMK_LSB_STATUS_OK:
return PCMK_EXECRA_OK;
case PCMK_LSB_STATUS_NOT_INSTALLED:
return PCMK_EXECRA_NOT_INSTALLED;
case PCMK_LSB_STATUS_VAR_PID:
case PCMK_LSB_STATUS_VAR_LOCK:
case PCMK_LSB_STATUS_NOT_RUNNING:
return PCMK_EXECRA_NOT_RUNNING;
default:
return PCMK_EXECRA_UNKNOWN_ERROR;
}
return PCMK_EXECRA_UNKNOWN_ERROR;
}
static int
ocf2uniform_rc(int rc)
{
if (rc < 0 || rc > PCMK_OCF_FAILED_MASTER) {
return PCMK_EXECRA_UNKNOWN_ERROR;
}
return rc;
}
static int
stonith2uniform_rc(const char *action, int rc)
{
if (rc == -ENODEV) {
if (safe_str_eq(action, "stop")) {
rc = PCMK_EXECRA_OK;
} else if (safe_str_eq(action, "start")) {
rc = PCMK_EXECRA_NOT_INSTALLED;
} else {
rc = PCMK_EXECRA_NOT_RUNNING;
}
} else if (rc != 0) {
rc = PCMK_EXECRA_UNKNOWN_ERROR;
}
return rc;
}
static int
get_uniform_rc(const char *standard, const char *action, int rc)
{
if (safe_str_eq(standard, "ocf")) {
return ocf2uniform_rc(rc);
} else if (safe_str_eq(standard, "stonith")) {
return stonith2uniform_rc(action, rc);
} else if (safe_str_eq(standard, "systemd")) {
return rc;
} else if (safe_str_eq(standard, "upstart")) {
return rc;
} else {
return lsb2uniform_rc(action, rc);
}
}
void
client_disconnect_cleanup(const char *client_id)
{
GHashTableIter iter;
lrmd_rsc_t *rsc = NULL;
char *key = NULL;
g_hash_table_iter_init(&iter, rsc_list);
while (g_hash_table_iter_next(&iter, (gpointer *) & key, (gpointer *) & rsc)) {
if (rsc->call_opts & lrmd_opt_drop_recurring) {
/* This client is disconnecting, drop any recurring operations
* it may have initiated on the resource */
cancel_all_recurring(rsc, client_id);
}
}
}
static void
action_complete(svc_action_t * action)
{
lrmd_rsc_t *rsc;
lrmd_cmd_t *cmd = action->cb_data;
if (!cmd) {
crm_err("LRMD action (%s) completed does not match any known operations.", action->id);
return;
}
#ifdef HAVE_SYS_TIMEB_H
if (cmd->exec_rc != action->rc) {
ftime(&cmd->t_rcchange);
}
#endif
cmd->exec_rc = get_uniform_rc(action->standard, cmd->action, action->rc);
cmd->lrmd_op_status = action->status;
rsc = cmd->rsc_id ? g_hash_table_lookup(rsc_list, cmd->rsc_id) : NULL;
if (action->stdout_data) {
cmd->output = strdup(action->stdout_data);
}
cmd_finalize(cmd, rsc);
}
static void
stonith_action_complete(lrmd_cmd_t *cmd, int rc)
{
int recurring = cmd->interval;
lrmd_rsc_t *rsc = NULL;
cmd->exec_rc = get_uniform_rc("stonith", cmd->action, rc);
rsc = g_hash_table_lookup(rsc_list, cmd->rsc_id);
if (cmd->lrmd_op_status == PCMK_LRM_OP_CANCELLED) {
recurring = 0;
/* do nothing */
} else if (rc) {
/* Attempt to map return codes to op status if possible */
switch (rc) {
case -EPROTONOSUPPORT:
cmd->lrmd_op_status = PCMK_LRM_OP_NOTSUPPORTED;
break;
case -ETIME:
cmd->lrmd_op_status = PCMK_LRM_OP_TIMEOUT;
break;
default:
cmd->lrmd_op_status = PCMK_LRM_OP_ERROR;
}
} else {
/* command successful */
cmd->lrmd_op_status = PCMK_LRM_OP_DONE;
if (safe_str_eq(cmd->action, "start") && rsc) {
rsc->stonith_started = 1;
}
}
if (recurring && rsc) {
if (cmd->stonith_recurring_id) {
g_source_remove(cmd->stonith_recurring_id);
}
cmd->stonith_recurring_id = g_timeout_add(cmd->interval, stonith_recurring_op_helper, cmd);
}
cmd_finalize(cmd, rsc);
}
static void
lrmd_stonith_callback(stonith_t * stonith, stonith_callback_data_t *data)
{
stonith_action_complete(data->userdata, data->rc);
}
void
stonith_connection_failed(void)
{
GHashTableIter iter;
GList *cmd_list = NULL;
GList *cmd_iter = NULL;
lrmd_rsc_t *rsc = NULL;
char *key = NULL;
g_hash_table_iter_init(&iter, rsc_list);
while (g_hash_table_iter_next(&iter, (gpointer *) & key, (gpointer *) & rsc)) {
if (safe_str_eq(rsc->class, "stonith")) {
if (rsc->recurring_ops) {
cmd_list = g_list_concat(cmd_list, rsc->recurring_ops);
}
if (rsc->pending_ops) {
cmd_list = g_list_concat(cmd_list, rsc->pending_ops);
}
rsc->pending_ops = rsc->recurring_ops = NULL;
}
}
if (!cmd_list) {
return;
}
crm_err("STONITH connection failed, finalizing %d pending operations.", g_list_length(cmd_list));
for (cmd_iter = cmd_list; cmd_iter; cmd_iter = cmd_iter->next) {
stonith_action_complete(cmd_iter->data, -ENOTCONN);
}
g_list_free(cmd_list);
}
static int
lrmd_rsc_execute_stonith(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
{
int rc = 0;
int do_monitor = 0;
stonith_t *stonith_api = get_stonith_connection();
if (!stonith_api) {
cmd->exec_rc = get_uniform_rc("stonith", cmd->action, -ENOTCONN);
cmd->lrmd_op_status = PCMK_LRM_OP_ERROR;
cmd_finalize(cmd, rsc);
return -EUNATCH;
}
if (safe_str_eq(cmd->action, "start")) {
char *key = NULL;
char *value = NULL;
stonith_key_value_t *device_params = NULL;
if (cmd->params) {
GHashTableIter iter;
g_hash_table_iter_init(&iter, cmd->params);
while (g_hash_table_iter_next(&iter, (gpointer *) & key, (gpointer *) & value)) {
device_params = stonith_key_value_add(device_params, key, value);
}
}
/* Stonith automatically registers devices from the CIB when changes occur,
* but to avoid a possible race condition between stonith receiving the CIB update
* and the lrmd requesting that resource, the lrmd still registers the device as well.
* Stonith knows how to handle duplicate device registrations correctly. */
rc = stonith_api->cmds->register_device(stonith_api,
st_opt_sync_call,
cmd->rsc_id,
rsc->provider, rsc->type, device_params);
stonith_key_value_freeall(device_params, 1, 1);
if (rc == 0) {
do_monitor = 1;
}
} else if (safe_str_eq(cmd->action, "stop")) {
- /* Device removal now happens when the device is removed from the cib */
- /* rc = stonith_api->cmds->remove_device(stonith_api, st_opt_sync_call, cmd->rsc_id); */
+ rc = stonith_api->cmds->remove_device(stonith_api, st_opt_sync_call, cmd->rsc_id);
rsc->stonith_started = 0;
} else if (safe_str_eq(cmd->action, "monitor")) {
if (cmd->interval) {
do_monitor = 1;
} else {
rc = rsc->stonith_started ? 0 : -ENODEV;
}
}
if (!do_monitor) {
goto cleanup_stonith_exec;
}
rc = stonith_api->cmds->monitor(stonith_api,
0, cmd->rsc_id, cmd->timeout / 1000 );
rc = stonith_api->cmds->register_callback(
stonith_api,
rc,
0,
0,
cmd,
"lrmd_stonith_callback",
lrmd_stonith_callback);
/* don't cleanup yet, we will find out the result of the monitor later */
if (rc > 0) {
rsc->active = cmd;
return rc;
} else if (rc == 0) {
rc = -1;
}
cleanup_stonith_exec:
stonith_action_complete(cmd, rc);
return rc;
}
static const char *
normalize_action_name(lrmd_rsc_t * rsc, const char *action)
{
if (safe_str_eq(action, "monitor") &&
(safe_str_eq(rsc->class, "lsb") ||
safe_str_eq(rsc->class, "service") || safe_str_eq(rsc->class, "systemd"))) {
return "status";
}
return action;
}
static void
dup_attr(gpointer key, gpointer value, gpointer user_data)
{
g_hash_table_replace(user_data, strdup(key), strdup(value));
}
static int
lrmd_rsc_execute_service_lib(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
{
svc_action_t *action = NULL;
GHashTable *params_copy = NULL;
CRM_ASSERT(rsc);
CRM_ASSERT(cmd);
crm_trace("Creating action, resource:%s action:%s class:%s provider:%s agent:%s",
rsc->rsc_id, cmd->action, rsc->class, rsc->provider, rsc->type);
if (cmd->params) {
params_copy = g_hash_table_new_full(crm_str_hash,
g_str_equal, g_hash_destroy_str, g_hash_destroy_str);
if (params_copy != NULL) {
g_hash_table_foreach(cmd->params, dup_attr, params_copy);
}
}
action = resources_action_create(rsc->rsc_id,
rsc->class,
rsc->provider,
rsc->type,
normalize_action_name(rsc, cmd->action),
cmd->interval, cmd->timeout, params_copy);
if (!action) {
crm_err("Failed to create action, action:%s on resource %s", cmd->action, rsc->rsc_id);
cmd->lrmd_op_status = PCMK_LRM_OP_ERROR;
goto exec_done;
}
action->cb_data = cmd;
/* 'cmd' may not be valid after this point
*
* Upstart and systemd both synchronously determine monitor/status
* results and call action_complete (which may free 'cmd') if necessary
*/
if (services_action_async(action, action_complete)) {
return TRUE;
}
cmd->exec_rc = action->rc;
cmd->lrmd_op_status = PCMK_LRM_OP_ERROR;
services_action_free(action);
action = NULL;
exec_done:
cmd_finalize(cmd, rsc);
return TRUE;
}
static gboolean
lrmd_rsc_execute(lrmd_rsc_t * rsc)
{
lrmd_cmd_t *cmd = NULL;
CRM_CHECK(rsc != NULL, return FALSE);
if (rsc->active) {
crm_trace("%s is still active", rsc->rsc_id);
return TRUE;
}
if (rsc->pending_ops) {
GList *first = rsc->pending_ops;
cmd = first->data;
if (cmd->delay_id) {
crm_trace
("Command %s %s was asked to run too early, waiting for start_delay timeout of %dms",
cmd->rsc_id, cmd->action, cmd->start_delay);
return TRUE;
}
rsc->pending_ops = g_list_remove_link(rsc->pending_ops, first);
g_list_free_1(first);
#ifdef HAVE_SYS_TIMEB_H
ftime(&cmd->t_run);
}
#endif
if (!cmd) {
crm_trace("Nothing further to do for %s", rsc->rsc_id);
return TRUE;
}
rsc->active = cmd; /* only one op at a time for a rsc */
if (cmd->interval) {
rsc->recurring_ops = g_list_append(rsc->recurring_ops, cmd);
}
if (safe_str_eq(rsc->class, "stonith")) {
lrmd_rsc_execute_stonith(rsc, cmd);
} else {
lrmd_rsc_execute_service_lib(rsc, cmd);
}
return TRUE;
}
static gboolean
lrmd_rsc_dispatch(gpointer user_data)
{
return lrmd_rsc_execute(user_data);
}
void
free_rsc(gpointer data)
{
GListPtr gIter = NULL;
lrmd_rsc_t *rsc = data;
int is_stonith = safe_str_eq(rsc->class, "stonith");
for (gIter = rsc->pending_ops; gIter != NULL; gIter = gIter->next) {
lrmd_cmd_t *cmd = gIter->data;
/* command was never executed */
cmd->lrmd_op_status = PCMK_LRM_OP_CANCELLED;
cmd_finalize(cmd, NULL);
}
/* frees list, but not list elements. */
g_list_free(rsc->pending_ops);
for (gIter = rsc->recurring_ops; gIter != NULL; gIter = gIter->next) {
lrmd_cmd_t *cmd = gIter->data;
if (is_stonith) {
cmd->lrmd_op_status = PCMK_LRM_OP_CANCELLED;
cmd_finalize(cmd, NULL);
} else {
/* This command is already handed off to service library,
* let service library cancel it and tell us via the callback
* when it is cancelled. The rsc can be safely destroyed
* even if we are waiting for the cancel result */
services_action_cancel(rsc->rsc_id, cmd->action, cmd->interval);
}
}
/* frees list, but not list elements. */
g_list_free(rsc->recurring_ops);
free(rsc->rsc_id);
free(rsc->class);
free(rsc->provider);
free(rsc->type);
mainloop_destroy_trigger(rsc->work);
free(rsc);
}
static int
process_lrmd_signon(lrmd_client_t * client, uint32_t id, xmlNode * request)
{
xmlNode *reply = create_xml_node(NULL, "reply");
crm_xml_add(reply, F_LRMD_OPERATION, CRM_OP_REGISTER);
crm_xml_add(reply, F_LRMD_CLIENTID, client->id);
crm_ipcs_send(client->channel, id, reply, FALSE);
free_xml(reply);
return pcmk_ok;
}
static int
process_lrmd_rsc_register(lrmd_client_t * client, uint32_t id, xmlNode * request)
{
int rc = pcmk_ok;
lrmd_rsc_t *rsc = build_rsc_from_xml(request);
lrmd_rsc_t *dup = g_hash_table_lookup(rsc_list, rsc->rsc_id);
if (dup &&
safe_str_eq(rsc->class, dup->class) &&
safe_str_eq(rsc->provider, dup->provider) && safe_str_eq(rsc->type, dup->type)) {
crm_warn("Can't add, RSC '%s' already present in the rsc list (%d active resources)",
rsc->rsc_id, g_hash_table_size(rsc_list));
free_rsc(rsc);
return rc;
}
g_hash_table_replace(rsc_list, rsc->rsc_id, rsc);
crm_info("Added '%s' to the rsc list (%d active resources)",
rsc->rsc_id, g_hash_table_size(rsc_list));
return rc;
}
static void
process_lrmd_get_rsc_info(lrmd_client_t * client, uint32_t id, xmlNode * request)
{
int rc = pcmk_ok;
int send_rc = 0;
int call_id = 0;
xmlNode *rsc_xml = get_xpath_object("//" F_LRMD_RSC, request, LOG_ERR);
const char *rsc_id = crm_element_value(rsc_xml, F_LRMD_RSC_ID);
xmlNode *reply = NULL;
lrmd_rsc_t *rsc = NULL;
crm_element_value_int(request, F_LRMD_CALLID, &call_id);
if (!rsc_id) {
rc = -ENODEV;
goto get_rsc_done;
}
if (!(rsc = g_hash_table_lookup(rsc_list, rsc_id))) {
crm_info("Resource '%s' not found (%d active resources)",
rsc_id, g_hash_table_size(rsc_list));
rc = -ENODEV;
goto get_rsc_done;
}
get_rsc_done:
reply = create_xml_node(NULL, T_LRMD_REPLY);
crm_xml_add(reply, F_LRMD_ORIGIN, __FUNCTION__);
crm_xml_add_int(reply, F_LRMD_RC, rc);
crm_xml_add_int(reply, F_LRMD_CALLID, call_id);
if (rsc) {
crm_xml_add(reply, F_LRMD_RSC_ID, rsc->rsc_id);
crm_xml_add(reply, F_LRMD_CLASS, rsc->class);
crm_xml_add(reply, F_LRMD_PROVIDER, rsc->provider);
crm_xml_add(reply, F_LRMD_TYPE, rsc->type);
}
send_rc = crm_ipcs_send(client->channel, id, reply, FALSE);
if (send_rc < 0) {
crm_warn("LRMD reply to %s failed: %d", client->name, send_rc);
}
free_xml(reply);
}
static int
process_lrmd_rsc_unregister(lrmd_client_t * client, uint32_t id, xmlNode * request)
{
int rc = pcmk_ok;
lrmd_rsc_t *rsc = NULL;
xmlNode *rsc_xml = get_xpath_object("//" F_LRMD_RSC, request, LOG_ERR);
const char *rsc_id = crm_element_value(rsc_xml, F_LRMD_RSC_ID);
if (!rsc_id) {
return -ENODEV;
}
if (!(rsc = g_hash_table_lookup(rsc_list, rsc_id))) {
crm_info("Resource '%s' not found (%d active resources)",
rsc_id, g_hash_table_size(rsc_list));
return pcmk_ok;
}
if (rsc->active) {
/* let the caller know there are still active ops on this rsc to watch for */
crm_trace("Operation still in progress: %p", rsc->active);
rc = -EINPROGRESS;
}
g_hash_table_remove(rsc_list, rsc_id);
return rc;
}
static int
process_lrmd_rsc_exec(lrmd_client_t * client, uint32_t id, xmlNode * request)
{
lrmd_rsc_t *rsc = NULL;
lrmd_cmd_t *cmd = NULL;
xmlNode *rsc_xml = get_xpath_object("//" F_LRMD_RSC, request, LOG_ERR);
const char *rsc_id = crm_element_value(rsc_xml, F_LRMD_RSC_ID);
if (!rsc_id) {
return -EINVAL;
}
if (!(rsc = g_hash_table_lookup(rsc_list, rsc_id))) {
crm_info("Resource '%s' not found (%d active resources)",
rsc_id, g_hash_table_size(rsc_list));
return -ENODEV;
}
cmd = create_lrmd_cmd(request, client);
schedule_lrmd_cmd(rsc, cmd);
return cmd->call_id;
}
static int
cancel_op(const char *rsc_id, const char *action, int interval)
{
GListPtr gIter = NULL;
lrmd_rsc_t *rsc = g_hash_table_lookup(rsc_list, rsc_id);
/* How to cancel an action.
* 1. Check pending ops list, if it hasn't been handed off
* to the service library or stonith recurring list remove
* it there and that will stop it.
* 2. If it isn't in the pending ops list, then its either a
* recurring op in the stonith recurring list, or the service
* library's recurring list. Stop it there
* 3. If not found in any lists, then this operation has either
* been executed already and is not a recurring operation, or
* never existed.
*/
if (!rsc) {
return -ENODEV;
}
for (gIter = rsc->pending_ops; gIter != NULL; gIter = gIter->next) {
lrmd_cmd_t *cmd = gIter->data;
if (safe_str_eq(cmd->action, action) && cmd->interval == interval) {
cmd->lrmd_op_status = PCMK_LRM_OP_CANCELLED;
cmd_finalize(cmd, rsc);
return pcmk_ok;
}
}
if (safe_str_eq(rsc->class, "stonith")) {
/* The service library does not handle stonith operations.
* We have to handle recurring stonith opereations ourselves. */
for (gIter = rsc->recurring_ops; gIter != NULL; gIter = gIter->next) {
lrmd_cmd_t *cmd = gIter->data;
if (safe_str_eq(cmd->action, action) && cmd->interval == interval) {
cmd->lrmd_op_status = PCMK_LRM_OP_CANCELLED;
if (rsc->active != cmd) {
cmd_finalize(cmd, rsc);
}
return pcmk_ok;
}
}
} else if (services_action_cancel(rsc_id, normalize_action_name(rsc, action), interval) == TRUE) {
/* The service library will tell the action_complete callback function
* this action was cancelled, which will destroy the cmd and remove
* it from the recurring_op list. Do not do that in this function
* if the service library says it cancelled it. */
return pcmk_ok;
}
return -EOPNOTSUPP;
}
static void
cancel_all_recurring(lrmd_rsc_t *rsc, const char *client_id)
{
GList *cmd_list = NULL;
GList *cmd_iter = NULL;
/* Notice a copy of each list is created when concat is called.
* This prevents odd behavior from occurring when the cmd_list
* is iterated through later on. It is possible the cancel_op
* function may end up modifying the recurring_ops and pending_ops
* lists. If we did not copy those lists, our cmd_list iteration
* could get messed up.*/
if (rsc->recurring_ops) {
cmd_list = g_list_concat(cmd_list, g_list_copy(rsc->recurring_ops));
}
if (rsc->pending_ops) {
cmd_list = g_list_concat(cmd_list, g_list_copy(rsc->pending_ops));
}
if (!cmd_list) {
return;
}
for (cmd_iter = cmd_list; cmd_iter; cmd_iter = cmd_iter->next) {
lrmd_cmd_t *cmd = cmd_iter->data;
if (cmd->interval == 0) {
continue;
}
if (client_id && safe_str_neq(cmd->client_id, client_id)) {
continue;
}
cancel_op(rsc->rsc_id, cmd->action, cmd->interval);
}
/* frees only the copied list data, not the cmds */
g_list_free(cmd_list);
}
static int
process_lrmd_rsc_cancel(lrmd_client_t * client, uint32_t id, xmlNode * request)
{
xmlNode *rsc_xml = get_xpath_object("//" F_LRMD_RSC, request, LOG_ERR);
const char *rsc_id = crm_element_value(rsc_xml, F_LRMD_RSC_ID);
const char *action = crm_element_value(rsc_xml, F_LRMD_RSC_ACTION);
int interval = 0;
crm_element_value_int(rsc_xml, F_LRMD_RSC_INTERVAL, &interval);
if (!rsc_id || !action) {
return -EINVAL;
}
return cancel_op(rsc_id, action, interval);
}
void
process_lrmd_message(lrmd_client_t * client, uint32_t id, xmlNode * request)
{
int rc = pcmk_ok;
int call_id = 0;
const char *op = crm_element_value(request, F_LRMD_OPERATION);
int do_reply = 0;
int do_notify = 0;
int exit = 0;
crm_trace("Processing %s operation from %s", op, client->id);
crm_element_value_int(request, F_LRMD_CALLID, &call_id);
if (crm_str_eq(op, CRM_OP_REGISTER, TRUE)) {
rc = process_lrmd_signon(client, id, request);
} else if (crm_str_eq(op, LRMD_OP_RSC_REG, TRUE)) {
rc = process_lrmd_rsc_register(client, id, request);
do_notify = 1;
do_reply = 1;
} else if (crm_str_eq(op, LRMD_OP_RSC_INFO, TRUE)) {
process_lrmd_get_rsc_info(client, id, request);
} else if (crm_str_eq(op, LRMD_OP_RSC_UNREG, TRUE)) {
rc = process_lrmd_rsc_unregister(client, id, request);
/* don't notify anyone about failed un-registers */
if (rc == pcmk_ok || rc == -EINPROGRESS) {
do_notify = 1;
}
do_reply = 1;
} else if (crm_str_eq(op, LRMD_OP_RSC_EXEC, TRUE)) {
rc = process_lrmd_rsc_exec(client, id, request);
do_reply = 1;
} else if (crm_str_eq(op, LRMD_OP_RSC_CANCEL, TRUE)) {
rc = process_lrmd_rsc_cancel(client, id, request);
do_reply = 1;
} else if (crm_str_eq(op, CRM_OP_QUIT, TRUE)) {
do_reply = 1;
exit = 1;
} else {
rc = -EOPNOTSUPP;
do_reply = 1;
crm_err("Unknown %s from %s", op, client->name);
crm_log_xml_warn(request, "UnknownOp");
}
crm_debug("Processed %s operation from %s: rc=%d, reply=%d, notify=%d, exit=%d",
op, client->id, rc, do_reply, do_notify, exit);
if (do_reply) {
send_reply(client, rc, id, call_id);
}
if (do_notify) {
send_generic_notify(rc, request);
}
if (exit) {
lrmd_shutdown(0);
}
}