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diff --git a/daemons/pacemakerd/pcmkd_messages.c b/daemons/pacemakerd/pcmkd_messages.c
index f1812b8799..4049fbf325 100644
--- a/daemons/pacemakerd/pcmkd_messages.c
+++ b/daemons/pacemakerd/pcmkd_messages.c
@@ -1,202 +1,244 @@
/*
* Copyright 2010-2022 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU General Public License version 2
* or later (GPLv2+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#include "pacemakerd.h"
+#include <crm/crm.h>
#include <crm/msg_xml.h>
#include <errno.h>
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include <time.h>
#include <sys/types.h>
+static GHashTable *pcmkd_handlers = NULL;
+
+static xmlNode *
+handle_node_cache_request(pcmk__request_t *request)
+{
+ crm_trace("Ignoring request from client %s to purge node "
+ "because peer cache is not used",
+ pcmk__client_name(request->ipc_client));
+
+ pcmk__ipc_send_ack(request->ipc_client, request->ipc_id, request->ipc_flags,
+ "ack", NULL, CRM_EX_OK);
+ return NULL;
+}
+
static void
handle_ping_request(pcmk__client_t *c, xmlNode *msg, uint32_t id)
{
const char *value = NULL;
xmlNode *ping = NULL;
xmlNode *reply = NULL;
const char *from = crm_element_value(msg, F_CRM_SYS_FROM);
/* Pinged for status */
crm_trace("Pinged from " F_CRM_SYS_FROM "='%s' " F_CRM_ORIGIN "='%s'",
pcmk__s(from, ""),
pcmk__s(crm_element_value(msg, F_CRM_ORIGIN), ""));
ping = create_xml_node(NULL, XML_CRM_TAG_PING);
value = crm_element_value(msg, F_CRM_SYS_TO);
crm_xml_add(ping, XML_PING_ATTR_SYSFROM, value);
crm_xml_add(ping, XML_PING_ATTR_PACEMAKERDSTATE, pacemakerd_state);
crm_xml_add_ll(ping, XML_ATTR_TSTAMP,
(long long) subdaemon_check_progress);
crm_xml_add(ping, XML_PING_ATTR_STATUS, "ok");
reply = create_reply(msg, ping);
free_xml(ping);
if (reply) {
if (pcmk__ipc_send_xml(c, id, reply, crm_ipc_server_event) !=
pcmk_rc_ok) {
crm_err("Failed sending ping reply to client %s",
pcmk__client_name(c));
}
free_xml(reply);
} else {
crm_err("Failed building ping reply for client %s",
pcmk__client_name(c));
}
/* just proceed state on sbd pinging us */
if (from && strstr(from, "sbd")) {
if (pcmk__str_eq(pacemakerd_state, XML_PING_ATTR_PACEMAKERDSTATE_SHUTDOWNCOMPLETE, pcmk__str_none)) {
if (pcmk__get_sbd_sync_resource_startup()) {
crm_notice("Shutdown-complete-state passed to SBD.");
}
shutdown_complete_state_reported_to = c->pid;
} else if (pcmk__str_eq(pacemakerd_state, XML_PING_ATTR_PACEMAKERDSTATE_WAITPING, pcmk__str_none)) {
crm_notice("Received startup-trigger from SBD.");
pacemakerd_state = XML_PING_ATTR_PACEMAKERDSTATE_STARTINGDAEMONS;
mainloop_set_trigger(startup_trigger);
}
}
}
static void
handle_shutdown_request(pcmk__client_t *c, xmlNode *msg, uint32_t id, uint32_t flags)
{
xmlNode *shutdown = NULL;
xmlNode *reply = NULL;
/* Only allow privileged users (i.e. root or hacluster) to shut down
* Pacemaker from the command line (or direct IPC), so that other users
* are forced to go through the CIB and have ACLs applied.
*/
bool allowed = pcmk_is_set(c->flags, pcmk__client_privileged);
shutdown = create_xml_node(NULL, XML_CIB_ATTR_SHUTDOWN);
if (allowed) {
crm_notice("Shutting down in response to IPC request %s from %s",
crm_element_value(msg, F_CRM_REFERENCE),
crm_element_value(msg, F_CRM_ORIGIN));
crm_xml_add_int(shutdown, XML_LRM_ATTR_OPSTATUS, CRM_EX_OK);
} else {
crm_warn("Ignoring shutdown request from unprivileged client %s",
pcmk__client_name(c));
crm_xml_add_int(shutdown, XML_LRM_ATTR_OPSTATUS, CRM_EX_INSUFFICIENT_PRIV);
}
reply = create_reply(msg, shutdown);
free_xml(shutdown);
if (reply) {
if (pcmk__ipc_send_xml(c, id, reply, crm_ipc_server_event) != pcmk_rc_ok) {
crm_err("Failed sending shutdown reply to client %s",
pcmk__client_name(c));
}
free_xml(reply);
} else {
crm_err("Failed building shutdown reply for client %s",
pcmk__client_name(c));
}
if (allowed) {
pcmk_shutdown(15);
}
}
+static xmlNode *
+handle_unknown_request(pcmk__request_t *request)
+{
+ pcmk__ipc_send_ack(request->ipc_client, request->ipc_id, request->ipc_flags,
+ "ack", NULL, CRM_EX_INVALID_PARAM);
+
+ pcmk__format_result(&request->result, CRM_EX_PROTOCOL, PCMK_EXEC_INVALID,
+ "Unknown IPC request type '%s' (bug?)",
+ pcmk__client_name(request->ipc_client));
+ return NULL;
+}
+
+static void
+pcmkd_register_handlers(void)
+{
+ pcmk__server_command_t handlers[] = {
+ { CRM_OP_RM_NODE_CACHE, handle_node_cache_request },
+ { NULL, handle_unknown_request },
+ };
+
+ pcmkd_handlers = pcmk__register_handlers(handlers);
+}
+
static int32_t
pcmk_ipc_accept(qb_ipcs_connection_t * c, uid_t uid, gid_t gid)
{
crm_trace("Connection %p", c);
if (pcmk__new_client(c, uid, gid) == NULL) {
return -EIO;
}
return 0;
}
/* Error code means? */
static int32_t
pcmk_ipc_closed(qb_ipcs_connection_t * c)
{
pcmk__client_t *client = pcmk__find_client(c);
if (client == NULL) {
return 0;
}
crm_trace("Connection %p", c);
if (shutdown_complete_state_reported_to == client->pid) {
shutdown_complete_state_reported_client_closed = TRUE;
if (shutdown_trigger) {
mainloop_set_trigger(shutdown_trigger);
}
}
pcmk__free_client(client);
return 0;
}
static void
pcmk_ipc_destroy(qb_ipcs_connection_t * c)
{
crm_trace("Connection %p", c);
pcmk_ipc_closed(c);
}
/* Exit code means? */
static int32_t
pcmk_ipc_dispatch(qb_ipcs_connection_t * qbc, void *data, size_t size)
{
uint32_t id = 0;
uint32_t flags = 0;
const char *task = NULL;
xmlNode *msg = NULL;
pcmk__client_t *c = pcmk__find_client(qbc);
CRM_CHECK(c != NULL, return 0);
+ if (pcmkd_handlers == NULL) {
+ pcmkd_register_handlers();
+ }
+
msg = pcmk__client_data2xml(c, data, &id, &flags);
if (msg == NULL) {
pcmk__ipc_send_ack(c, id, flags, "ack", NULL, CRM_EX_PROTOCOL);
return 0;
}
task = crm_element_value(msg, F_CRM_TASK);
if (pcmk__str_empty(task)) {
crm_debug("IPC command from client %s is missing task",
pcmk__client_name(c));
pcmk__ipc_send_ack(c, id, flags, "ack", NULL, CRM_EX_INVALID_PARAM);
} else if (pcmk__str_eq(task, CRM_OP_QUIT, pcmk__str_none)) {
pcmk__ipc_send_ack(c, id, flags, "ack", NULL, CRM_EX_INDETERMINATE);
handle_shutdown_request(c, msg, id, flags);
} else if (pcmk__str_eq(task, CRM_OP_RM_NODE_CACHE, pcmk__str_none)) {
crm_trace("Ignoring request from client %s to purge node "
"because peer cache is not used", pcmk__client_name(c));
pcmk__ipc_send_ack(c, id, flags, "ack", NULL, CRM_EX_OK);
} else if (pcmk__str_eq(task, CRM_OP_PING, pcmk__str_none)) {
pcmk__ipc_send_ack(c, id, flags, "ack", NULL, CRM_EX_INDETERMINATE);
handle_ping_request(c, msg, id);
} else {
crm_debug("Unrecognized IPC command '%s' from client %s",
task, pcmk__client_name(c));
pcmk__ipc_send_ack(c, id, flags, "ack", NULL, CRM_EX_INVALID_PARAM);
}
free_xml(msg);
return 0;
}
struct qb_ipcs_service_handlers mcp_ipc_callbacks = {
.connection_accept = pcmk_ipc_accept,
.connection_created = NULL,
.msg_process = pcmk_ipc_dispatch,
.connection_closed = pcmk_ipc_closed,
.connection_destroyed = pcmk_ipc_destroy
};

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