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diff --git a/exec/vsf_quorum.c b/exec/vsf_quorum.c
index 79e4aba3..5fc1e011 100644
--- a/exec/vsf_quorum.c
+++ b/exec/vsf_quorum.c
@@ -1,471 +1,474 @@
/*
* Copyright (c) 2008, 2009 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Christine Caulfield (ccaulfie@redhat.com)
*
* This software licensed under BSD license, the text of which follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of Red Hat Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#include <pwd.h>
#include <grp.h>
#include <sys/types.h>
#include <sys/poll.h>
#include <sys/uio.h>
#include <sys/mman.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <sched.h>
#include <time.h>
#include <corosync/corotypes.h>
#include <corosync/coroipc_types.h>
#include <corosync/corodefs.h>
#include <corosync/swab.h>
#include <corosync/list.h>
#include <corosync/mar_gen.h>
#include <corosync/ipc_quorum.h>
#include <corosync/lcr/lcr_comp.h>
#include <corosync/lcr/lcr_ifact.h>
#include <corosync/mar_gen.h>
#include <corosync/engine/coroapi.h>
#include <corosync/engine/logsys.h>
#include <corosync/engine/quorum.h>
LOGSYS_DECLARE_SUBSYS ("QUORUM");
struct quorum_pd {
unsigned char track_flags;
int tracking_enabled;
struct list_head list;
void *conn;
};
struct internal_callback_pd {
struct list_head list;
quorum_callback_fn_t callback;
void *context;
};
static void message_handler_req_lib_quorum_getquorate (void *conn,
const void *msg);
static void message_handler_req_lib_quorum_trackstart (void *conn,
const void *msg);
static void message_handler_req_lib_quorum_trackstop (void *conn,
const void *msg);
static void send_library_notification(void *conn);
static void send_internal_notification(void);
static int quorum_exec_init_fn (struct corosync_api_v1 *api);
static int quorum_lib_init_fn (void *conn);
static int quorum_lib_exit_fn (void *conn);
static int primary_designated = 0;
static struct corosync_api_v1 *corosync_api;
static struct list_head lib_trackers_list;
static struct list_head internal_trackers_list;
static struct memb_ring_id quorum_ring_id;
static size_t quorum_view_list_entries = 0;
static int quorum_view_list[PROCESSOR_COUNT_MAX];
struct quorum_services_api_ver1 *quorum_iface = NULL;
/* Internal quorum API function */
static void quorum_api_set_quorum(const unsigned int *view_list,
size_t view_list_entries,
int quorum, struct memb_ring_id *ring_id)
{
int i;
primary_designated = quorum;
if (primary_designated) {
log_printf (LOGSYS_LEVEL_NOTICE, "This node is within the primary component and will provide service.\n");
} else {
log_printf (LOGSYS_LEVEL_NOTICE, "This node is within the non-primary component and will NOT provide any services.\n");
}
quorum_view_list_entries = view_list_entries;
memcpy(&quorum_ring_id, ring_id, sizeof (quorum_ring_id));
memcpy(quorum_view_list, view_list, sizeof(unsigned int)*view_list_entries);
log_printf (LOGSYS_LEVEL_NOTICE, "Members[%d]: ", (int)view_list_entries);
for (i=0; i<view_list_entries; i++)
log_printf (LOGSYS_LEVEL_NOTICE, " %d ", view_list[i]);
/* Tell internal listeners */
send_internal_notification();
/* Tell IPC listeners */
send_library_notification(NULL);
}
static struct corosync_lib_handler quorum_lib_service[] =
{
{ /* 0 */
.lib_handler_fn = message_handler_req_lib_quorum_getquorate,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 1 */
.lib_handler_fn = message_handler_req_lib_quorum_trackstart,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 2 */
.lib_handler_fn = message_handler_req_lib_quorum_trackstop,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
}
};
static struct corosync_service_engine quorum_service_handler = {
.name = "corosync cluster quorum service v0.1",
.id = QUORUM_SERVICE,
.private_data_size = sizeof (struct quorum_pd),
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED,
.allow_inquorate = CS_LIB_ALLOW_INQUORATE,
.lib_init_fn = quorum_lib_init_fn,
.lib_exit_fn = quorum_lib_exit_fn,
.lib_engine = quorum_lib_service,
.exec_init_fn = quorum_exec_init_fn,
.lib_engine_count = sizeof (quorum_lib_service) / sizeof (struct corosync_lib_handler),
};
static struct lcr_iface corosync_quorum_ver0[1] = {
{
.name = "corosync_quorum",
.version = 0,
.versions_replace = 0,
.versions_replace_count = 0,
.dependencies = 0,
.dependency_count = 0,
.constructor = NULL,
.destructor = NULL,
.interfaces = NULL,
},
};
static struct corosync_service_engine *quorum_get_service_handler_ver0 (void)
{
return (&quorum_service_handler);
}
static struct lcr_comp quorum_comp_ver0 = {
.iface_count = 1,
.ifaces = corosync_quorum_ver0
};
static struct corosync_service_engine_iface_ver0 quorum_service_handler_iface = {
.corosync_get_service_engine_ver0 = quorum_get_service_handler_ver0
};
#ifdef COROSYNC_SOLARIS
void corosync_lcr_component_register (void);
void corosync_lcr_component_register (void) {
#else
__attribute__ ((constructor)) static void corosync_lcr_component_register (void) {
#endif
lcr_component_register (&quorum_comp_ver0);
lcr_interfaces_set (&corosync_quorum_ver0[0], &quorum_service_handler_iface);
}
/* -------------------------------------------------- */
/*
* Internal API functions for corosync
*/
static int quorum_quorate(void)
{
return primary_designated;
}
static int quorum_register_callback(quorum_callback_fn_t function, void *context)
{
struct internal_callback_pd *pd = malloc(sizeof(struct internal_callback_pd));
if (!pd)
return -1;
pd->context = context;
pd->callback = function;
list_add (&pd->list, &internal_trackers_list);
return 0;
}
static int quorum_unregister_callback(quorum_callback_fn_t function, void *context)
{
struct internal_callback_pd *pd;
struct list_head *tmp;
for (tmp = internal_trackers_list.next; tmp != &internal_trackers_list; tmp = tmp->next) {
pd = list_entry(tmp, struct internal_callback_pd, list);
if (pd->callback == function && pd->context == context) {
list_del(&pd->list);
return 0;
}
}
return -1;
}
static struct quorum_callin_functions callins = {
.quorate = quorum_quorate,
.register_callback = quorum_register_callback,
.unregister_callback = quorum_unregister_callback
};
/* --------------------------------------------------------------------- */
static int quorum_exec_init_fn (struct corosync_api_v1 *api)
{
hdb_handle_t find_handle;
hdb_handle_t quorum_handle = 0;
hdb_handle_t q_handle;
char *quorum_module;
int res;
void *quorum_iface_p;
+#ifdef COROSYNC_SOLARIS
+ logsys_subsys_init();
+#endif
corosync_api = api;
list_init (&lib_trackers_list);
list_init (&internal_trackers_list);
/*
* Tell corosync we have a quorum engine.
*/
api->quorum_initialize(&callins);
/*
* Look for a quorum provider
*/
api->object_find_create(OBJECT_PARENT_HANDLE, "quorum", strlen("quorum"), &find_handle);
api->object_find_next(find_handle, &quorum_handle);
api->object_find_destroy(find_handle);
if (quorum_handle) {
if ( !(res = api->object_key_get(quorum_handle,
"provider",
strlen("provider"),
(void *)&quorum_module,
NULL))) {
res = lcr_ifact_reference (
&q_handle,
quorum_module,
0,
&quorum_iface_p,
0);
if (res == -1) {
log_printf (LOGSYS_LEVEL_NOTICE,
"Couldn't load quorum provider %s\n",
quorum_module);
return (-1);
}
log_printf (LOGSYS_LEVEL_NOTICE,
"Using quorum provider %s\n", quorum_module);
quorum_iface = (struct quorum_services_api_ver1 *)quorum_iface_p;
quorum_iface->init (api, quorum_api_set_quorum);
}
}
if (!quorum_iface) {
/*
* With no quorum provider, we are always quorate
*/
primary_designated = 1;
}
return (0);
}
static int quorum_lib_init_fn (void *conn)
{
struct quorum_pd *pd = (struct quorum_pd *)corosync_api->ipc_private_data_get (conn);
log_printf(LOGSYS_LEVEL_DEBUG, "lib_init_fn: conn=%p\n", conn);
list_init (&pd->list);
pd->conn = conn;
return (0);
}
static int quorum_lib_exit_fn (void *conn)
{
struct quorum_pd *quorum_pd = (struct quorum_pd *)corosync_api->ipc_private_data_get (conn);
log_printf(LOGSYS_LEVEL_DEBUG, "lib_exit_fn: conn=%p\n", conn);
if (quorum_pd->tracking_enabled) {
list_del (&quorum_pd->list);
list_init (&quorum_pd->list);
}
return (0);
}
static void send_internal_notification(void)
{
struct list_head *tmp;
struct internal_callback_pd *pd;
for (tmp = internal_trackers_list.next; tmp != &internal_trackers_list; tmp = tmp->next) {
pd = list_entry(tmp, struct internal_callback_pd, list);
pd->callback(primary_designated, pd->context);
}
}
static void send_library_notification(void *conn)
{
int size = sizeof(struct res_lib_quorum_notification) + sizeof(unsigned int)*quorum_view_list_entries;
char buf[size];
struct res_lib_quorum_notification *res_lib_quorum_notification = (struct res_lib_quorum_notification *)buf;
struct list_head *tmp;
int i;
log_printf(LOGSYS_LEVEL_DEBUG, "sending quorum notification to %p, length = %d\n", conn, size);
res_lib_quorum_notification->quorate = primary_designated;
res_lib_quorum_notification->ring_seq = quorum_ring_id.seq;
res_lib_quorum_notification->view_list_entries = quorum_view_list_entries;
for (i=0; i<quorum_view_list_entries; i++) {
res_lib_quorum_notification->view_list[i] = quorum_view_list[i];
}
res_lib_quorum_notification->header.id = MESSAGE_RES_QUORUM_NOTIFICATION;
res_lib_quorum_notification->header.size = size;
res_lib_quorum_notification->header.error = CS_OK;
/* Send it to all interested parties */
if (conn) {
corosync_api->ipc_response_send(conn, res_lib_quorum_notification, size);
}
else {
struct quorum_pd *qpd;
for (tmp = lib_trackers_list.next; tmp != &lib_trackers_list; tmp = tmp->next) {
qpd = list_entry(tmp, struct quorum_pd, list);
corosync_api->ipc_dispatch_send(qpd->conn,
res_lib_quorum_notification, size);
}
}
return;
}
static void message_handler_req_lib_quorum_getquorate (void *conn,
const void *msg)
{
struct res_lib_quorum_getquorate res_lib_quorum_getquorate;
log_printf(LOGSYS_LEVEL_DEBUG, "got quorate request on %p\n", conn);
/* send status */
res_lib_quorum_getquorate.quorate = primary_designated;
res_lib_quorum_getquorate.header.size = sizeof(res_lib_quorum_getquorate);
res_lib_quorum_getquorate.header.id = MESSAGE_RES_QUORUM_GETQUORATE;
res_lib_quorum_getquorate.header.error = CS_OK;
corosync_api->ipc_response_send(conn, &res_lib_quorum_getquorate, sizeof(res_lib_quorum_getquorate));
}
static void message_handler_req_lib_quorum_trackstart (void *conn,
const void *msg)
{
const struct req_lib_quorum_trackstart *req_lib_quorum_trackstart = msg;
coroipc_response_header_t res;
struct quorum_pd *quorum_pd = (struct quorum_pd *)corosync_api->ipc_private_data_get (conn);
log_printf(LOGSYS_LEVEL_DEBUG, "got trackstart request on %p\n", conn);
/*
* If an immediate listing of the current cluster membership
* is requested, generate membership list
*/
if (req_lib_quorum_trackstart->track_flags & CS_TRACK_CURRENT ||
req_lib_quorum_trackstart->track_flags & CS_TRACK_CHANGES) {
log_printf(LOGSYS_LEVEL_DEBUG, "sending initial status to %p\n", conn);
send_library_notification(conn);
}
/*
* Record requests for tracking
*/
if (req_lib_quorum_trackstart->track_flags & CS_TRACK_CHANGES ||
req_lib_quorum_trackstart->track_flags & CS_TRACK_CHANGES_ONLY) {
quorum_pd->track_flags = req_lib_quorum_trackstart->track_flags;
quorum_pd->tracking_enabled = 1;
list_add (&quorum_pd->list, &lib_trackers_list);
}
/* send status */
res.size = sizeof(res);
res.id = MESSAGE_RES_QUORUM_TRACKSTART;
res.error = CS_OK;
corosync_api->ipc_response_send(conn, &res, sizeof(coroipc_response_header_t));
}
static void message_handler_req_lib_quorum_trackstop (void *conn, const void *msg)
{
coroipc_response_header_t res;
struct quorum_pd *quorum_pd = (struct quorum_pd *)corosync_api->ipc_private_data_get (conn);
log_printf(LOGSYS_LEVEL_DEBUG, "got trackstop request on %p\n", conn);
if (quorum_pd->tracking_enabled) {
res.error = CS_OK;
quorum_pd->tracking_enabled = 0;
list_del (&quorum_pd->list);
list_init (&quorum_pd->list);
} else {
res.error = CS_ERR_NOT_EXIST;
}
/* send status */
res.size = sizeof(res);
res.id = MESSAGE_RES_QUORUM_TRACKSTOP;
res.error = CS_OK;
corosync_api->ipc_response_send(conn, &res, sizeof(coroipc_response_header_t));
}
diff --git a/services/cfg.c b/services/cfg.c
index f6e7bdff..a89fcc44 100644
--- a/services/cfg.c
+++ b/services/cfg.c
@@ -1,1111 +1,1115 @@
/*
* Copyright (c) 2005-2006 MontaVista Software, Inc.
* Copyright (c) 2006-2009 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Steven Dake (sdake@redhat.com)
*
* This software licensed under BSD license, the text of which follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the MontaVista Software, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <limits.h>
#include <errno.h>
#include <string.h>
#include <corosync/corotypes.h>
#include <corosync/coroipc_types.h>
#include <corosync/cfg.h>
#include <corosync/list.h>
#include <corosync/mar_gen.h>
#include <corosync/totem/totemip.h>
#include <corosync/totem/totem.h>
#include <corosync/ipc_cfg.h>
#include <corosync/lcr/lcr_comp.h>
#include <corosync/engine/logsys.h>
#include <corosync/engine/coroapi.h>
#include <corosync/corodefs.h>
LOGSYS_DECLARE_SUBSYS ("CFG");
enum cfg_message_req_types {
MESSAGE_REQ_EXEC_CFG_RINGREENABLE = 0,
MESSAGE_REQ_EXEC_CFG_KILLNODE = 1,
MESSAGE_REQ_EXEC_CFG_SHUTDOWN = 2,
MESSAGE_REQ_EXEC_CFG_CRYPTO_SET = 3
};
#define DEFAULT_SHUTDOWN_TIMEOUT 5
static struct list_head trackers_list;
/*
* Variables controlling a requested shutdown
*/
static corosync_timer_handle_t shutdown_timer;
static struct cfg_info *shutdown_con;
static uint32_t shutdown_flags;
static int shutdown_yes;
static int shutdown_no;
static int shutdown_expected;
struct cfg_info
{
struct list_head list;
void *conn;
void *tracker_conn;
enum {SHUTDOWN_REPLY_UNKNOWN, SHUTDOWN_REPLY_YES, SHUTDOWN_REPLY_NO} shutdown_reply;
};
static void cfg_confchg_fn (
enum totem_configuration_type configuration_type,
const unsigned int *member_list, size_t member_list_entries,
const unsigned int *left_list, size_t left_list_entries,
const unsigned int *joined_list, size_t joined_list_entries,
const struct memb_ring_id *ring_id);
static int cfg_exec_init_fn (struct corosync_api_v1 *corosync_api_v1);
static struct corosync_api_v1 *api;
static int cfg_lib_init_fn (void *conn);
static int cfg_lib_exit_fn (void *conn);
static void message_handler_req_exec_cfg_ringreenable (
const void *message,
unsigned int nodeid);
static void message_handler_req_exec_cfg_killnode (
const void *message,
unsigned int nodeid);
static void message_handler_req_exec_cfg_shutdown (
const void *message,
unsigned int nodeid);
static void message_handler_req_exec_cfg_crypto_set (
const void *message,
unsigned int nodeid);
static void exec_cfg_killnode_endian_convert (void *msg);
static void message_handler_req_lib_cfg_ringstatusget (
void *conn,
const void *msg);
static void message_handler_req_lib_cfg_ringreenable (
void *conn,
const void *msg);
static void message_handler_req_lib_cfg_statetrack (
void *conn,
const void *msg);
static void message_handler_req_lib_cfg_statetrackstop (
void *conn,
const void *msg);
static void message_handler_req_lib_cfg_administrativestateset (
void *conn,
const void *msg);
static void message_handler_req_lib_cfg_administrativestateget (
void *conn,
const void *msg);
static void message_handler_req_lib_cfg_serviceload (
void *conn,
const void *msg);
static void message_handler_req_lib_cfg_serviceunload (
void *conn,
const void *msg);
static void message_handler_req_lib_cfg_killnode (
void *conn,
const void *msg);
static void message_handler_req_lib_cfg_tryshutdown (
void *conn,
const void *msg);
static void message_handler_req_lib_cfg_replytoshutdown (
void *conn,
const void *msg);
static void message_handler_req_lib_cfg_get_node_addrs (
void *conn,
const void *msg);
static void message_handler_req_lib_cfg_local_get (
void *conn,
const void *msg);
static void message_handler_req_lib_cfg_crypto_set (
void *conn,
const void *msg);
/*
* Service Handler Definition
*/
static struct corosync_lib_handler cfg_lib_engine[] =
{
{ /* 0 */
.lib_handler_fn = message_handler_req_lib_cfg_ringstatusget,
.flow_control = CS_LIB_FLOW_CONTROL_REQUIRED
},
{ /* 1 */
.lib_handler_fn = message_handler_req_lib_cfg_ringreenable,
.flow_control = CS_LIB_FLOW_CONTROL_REQUIRED
},
{ /* 2 */
.lib_handler_fn = message_handler_req_lib_cfg_statetrack,
.flow_control = CS_LIB_FLOW_CONTROL_REQUIRED
},
{ /* 3 */
.lib_handler_fn = message_handler_req_lib_cfg_statetrackstop,
.flow_control = CS_LIB_FLOW_CONTROL_REQUIRED
},
{ /* 4 */
.lib_handler_fn = message_handler_req_lib_cfg_administrativestateset,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 5 */
.lib_handler_fn = message_handler_req_lib_cfg_administrativestateget,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 6 */
.lib_handler_fn = message_handler_req_lib_cfg_serviceload,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 7 */
.lib_handler_fn = message_handler_req_lib_cfg_serviceunload,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 8 */
.lib_handler_fn = message_handler_req_lib_cfg_killnode,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 9 */
.lib_handler_fn = message_handler_req_lib_cfg_tryshutdown,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 10 */
.lib_handler_fn = message_handler_req_lib_cfg_replytoshutdown,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 11 */
.lib_handler_fn = message_handler_req_lib_cfg_get_node_addrs,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 12 */
.lib_handler_fn = message_handler_req_lib_cfg_local_get,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 13 */
.lib_handler_fn = message_handler_req_lib_cfg_crypto_set,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
}
};
static struct corosync_exec_handler cfg_exec_engine[] =
{
{ /* 0 */
.exec_handler_fn = message_handler_req_exec_cfg_ringreenable,
},
{ /* 1 */
.exec_handler_fn = message_handler_req_exec_cfg_killnode,
.exec_endian_convert_fn = exec_cfg_killnode_endian_convert
},
{ /* 2 */
.exec_handler_fn = message_handler_req_exec_cfg_shutdown,
},
{ /* 3 */
.exec_handler_fn = message_handler_req_exec_cfg_crypto_set,
}
};
/*
* Exports the interface for the service
*/
struct corosync_service_engine cfg_service_engine = {
.name = "corosync configuration service",
.id = CFG_SERVICE,
.priority = 1,
.private_data_size = sizeof(struct cfg_info),
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED,
.allow_inquorate = CS_LIB_ALLOW_INQUORATE,
.lib_init_fn = cfg_lib_init_fn,
.lib_exit_fn = cfg_lib_exit_fn,
.lib_engine = cfg_lib_engine,
.lib_engine_count = sizeof (cfg_lib_engine) / sizeof (struct corosync_lib_handler),
.exec_init_fn = cfg_exec_init_fn,
.exec_engine = cfg_exec_engine,
.exec_engine_count = 0, /* sizeof (cfg_aisexec_handler_fns) / sizeof (coroync_exec_handler), */
.confchg_fn = cfg_confchg_fn,
};
/*
* Dynamic Loader definition
*/
static struct corosync_service_engine *cfg_get_service_engine_ver0 (void);
static struct corosync_service_engine_iface_ver0 cfg_service_engine_iface = {
.corosync_get_service_engine_ver0 = cfg_get_service_engine_ver0
};
static struct lcr_iface corosync_cfg_ver0[1] = {
{
.name = "corosync_cfg",
.version = 0,
.versions_replace = 0,
.versions_replace_count = 0,
.dependencies = 0,
.dependency_count = 0,
.constructor = NULL,
.destructor = NULL,
.interfaces = NULL
}
};
static struct lcr_comp cfg_comp_ver0 = {
.iface_count = 1,
.ifaces = corosync_cfg_ver0
};
static struct corosync_service_engine *cfg_get_service_engine_ver0 (void)
{
return (&cfg_service_engine);
}
#ifdef COROSYNC_SOLARIS
void corosync_lcr_component_register (void);
void corosync_lcr_component_register (void) {
#else
__attribute__ ((constructor)) static void corosync_lcr_component_register (void) {
#endif
lcr_interfaces_set (&corosync_cfg_ver0[0], &cfg_service_engine_iface);
lcr_component_register (&cfg_comp_ver0);
}
struct req_exec_cfg_ringreenable {
coroipc_request_header_t header __attribute__((aligned(8)));
mar_message_source_t source __attribute__((aligned(8)));
};
struct req_exec_cfg_killnode {
coroipc_request_header_t header __attribute__((aligned(8)));
mar_uint32_t nodeid __attribute__((aligned(8)));
mar_name_t reason __attribute__((aligned(8)));
};
struct req_exec_cfg_crypto_set {
coroipc_request_header_t header __attribute__((aligned(8)));
mar_uint32_t type __attribute__((aligned(8)));
};
struct req_exec_cfg_shutdown {
coroipc_request_header_t header __attribute__((aligned(8)));
};
/* IMPL */
static int cfg_exec_init_fn (
struct corosync_api_v1 *corosync_api_v1)
{
+#ifdef COROSYNC_SOLARIS
+ logsys_subsys_init();
+#endif
+
api = corosync_api_v1;
list_init(&trackers_list);
return (0);
}
static void cfg_confchg_fn (
enum totem_configuration_type configuration_type,
const unsigned int *member_list, size_t member_list_entries,
const unsigned int *left_list, size_t left_list_entries,
const unsigned int *joined_list, size_t joined_list_entries,
const struct memb_ring_id *ring_id)
{
}
/*
* Tell other nodes we are shutting down
*/
static int send_shutdown(void)
{
struct req_exec_cfg_shutdown req_exec_cfg_shutdown;
struct iovec iovec;
ENTER();
req_exec_cfg_shutdown.header.size =
sizeof (struct req_exec_cfg_shutdown);
req_exec_cfg_shutdown.header.id = SERVICE_ID_MAKE (CFG_SERVICE,
MESSAGE_REQ_EXEC_CFG_SHUTDOWN);
iovec.iov_base = (char *)&req_exec_cfg_shutdown;
iovec.iov_len = sizeof (struct req_exec_cfg_shutdown);
assert (api->totem_mcast (&iovec, 1, TOTEM_SAFE) == 0);
LEAVE();
return 0;
}
static void send_test_shutdown(void *only_conn, void *exclude_conn, int status)
{
struct res_lib_cfg_testshutdown res_lib_cfg_testshutdown;
struct list_head *iter;
ENTER();
res_lib_cfg_testshutdown.header.size = sizeof(struct res_lib_cfg_testshutdown);
res_lib_cfg_testshutdown.header.id = MESSAGE_RES_CFG_TESTSHUTDOWN;
res_lib_cfg_testshutdown.header.error = status;
res_lib_cfg_testshutdown.flags = shutdown_flags;
if (only_conn) {
TRACE1("sending testshutdown to only %p", only_conn);
api->ipc_dispatch_send(only_conn, &res_lib_cfg_testshutdown,
sizeof(res_lib_cfg_testshutdown));
} else {
for (iter = trackers_list.next; iter != &trackers_list; iter = iter->next) {
struct cfg_info *ci = list_entry(iter, struct cfg_info, list);
if (ci->conn != exclude_conn) {
TRACE1("sending testshutdown to %p", ci->tracker_conn);
api->ipc_dispatch_send(ci->tracker_conn, &res_lib_cfg_testshutdown,
sizeof(res_lib_cfg_testshutdown));
}
}
}
LEAVE();
}
static void check_shutdown_status(void)
{
ENTER();
/*
* Shutdown client might have gone away
*/
if (!shutdown_con) {
LEAVE();
return;
}
/*
* All replies safely gathered in ?
*/
if (shutdown_yes + shutdown_no >= shutdown_expected) {
struct res_lib_cfg_tryshutdown res_lib_cfg_tryshutdown;
api->timer_delete(shutdown_timer);
if (shutdown_yes >= shutdown_expected ||
shutdown_flags == CFG_SHUTDOWN_FLAG_REGARDLESS) {
TRACE1("shutdown confirmed");
res_lib_cfg_tryshutdown.header.size = sizeof(struct res_lib_cfg_tryshutdown);
res_lib_cfg_tryshutdown.header.id = MESSAGE_RES_CFG_TRYSHUTDOWN;
res_lib_cfg_tryshutdown.header.error = CS_OK;
/*
* Tell originator that shutdown was confirmed
*/
api->ipc_response_send(shutdown_con->conn, &res_lib_cfg_tryshutdown,
sizeof(res_lib_cfg_tryshutdown));
shutdown_con = NULL;
/*
* Tell other nodes we are going down
*/
send_shutdown();
}
else {
TRACE1("shutdown cancelled");
res_lib_cfg_tryshutdown.header.size = sizeof(struct res_lib_cfg_tryshutdown);
res_lib_cfg_tryshutdown.header.id = MESSAGE_RES_CFG_TRYSHUTDOWN;
res_lib_cfg_tryshutdown.header.error = CS_ERR_BUSY;
/*
* Tell originator that shutdown was cancelled
*/
api->ipc_response_send(shutdown_con->conn, &res_lib_cfg_tryshutdown,
sizeof(res_lib_cfg_tryshutdown));
shutdown_con = NULL;
}
log_printf(LOGSYS_LEVEL_DEBUG, "shutdown decision is: (yes count: %d, no count: %d) flags=%x\n", shutdown_yes, shutdown_no, shutdown_flags);
}
LEAVE();
}
/*
* Not all nodes responded to the shutdown (in time)
*/
static void shutdown_timer_fn(void *arg)
{
ENTER();
/*
* Mark undecideds as "NO"
*/
shutdown_no = shutdown_expected;
check_shutdown_status();
send_test_shutdown(NULL, NULL, CS_ERR_TIMEOUT);
LEAVE();
}
static void remove_ci_from_shutdown(struct cfg_info *ci)
{
ENTER();
/*
* If the controlling shutdown process has quit, then cancel the
* shutdown session
*/
if (ci == shutdown_con) {
shutdown_con = NULL;
api->timer_delete(shutdown_timer);
}
if (!list_empty(&ci->list)) {
list_del(&ci->list);
list_init(&ci->list);
/*
* Remove our option
*/
if (shutdown_con) {
if (ci->shutdown_reply == SHUTDOWN_REPLY_YES)
shutdown_yes--;
if (ci->shutdown_reply == SHUTDOWN_REPLY_NO)
shutdown_no--;
}
/*
* If we are leaving, then that's an implicit YES to shutdown
*/
ci->shutdown_reply = SHUTDOWN_REPLY_YES;
shutdown_yes++;
check_shutdown_status();
}
LEAVE();
}
int cfg_lib_exit_fn (void *conn)
{
struct cfg_info *ci = (struct cfg_info *)api->ipc_private_data_get (conn);
ENTER();
if (!list_empty(&ci->list)) {
list_del(&ci->list);
remove_ci_from_shutdown(ci);
}
LEAVE();
return (0);
}
static int cfg_lib_init_fn (void *conn)
{
struct cfg_info *ci = (struct cfg_info *)api->ipc_private_data_get (conn);
ENTER();
list_init(&ci->list);
LEAVE();
return (0);
}
/*
* Executive message handlers
*/
static void message_handler_req_exec_cfg_ringreenable (
const void *message,
unsigned int nodeid)
{
const struct req_exec_cfg_ringreenable *req_exec_cfg_ringreenable
= message;
struct res_lib_cfg_ringreenable res_lib_cfg_ringreenable;
ENTER();
api->totem_ring_reenable ();
if (api->ipc_source_is_local(&req_exec_cfg_ringreenable->source)) {
res_lib_cfg_ringreenable.header.id = MESSAGE_RES_CFG_RINGREENABLE;
res_lib_cfg_ringreenable.header.size = sizeof (struct res_lib_cfg_ringreenable);
res_lib_cfg_ringreenable.header.error = CS_OK;
api->ipc_response_send (
req_exec_cfg_ringreenable->source.conn,
&res_lib_cfg_ringreenable,
sizeof (struct res_lib_cfg_ringreenable));
}
LEAVE();
}
static void exec_cfg_killnode_endian_convert (void *msg)
{
struct req_exec_cfg_killnode *req_exec_cfg_killnode =
(struct req_exec_cfg_killnode *)msg;
ENTER();
swab_mar_name_t(&req_exec_cfg_killnode->reason);
LEAVE();
}
static void message_handler_req_exec_cfg_killnode (
const void *message,
unsigned int nodeid)
{
const struct req_exec_cfg_killnode *req_exec_cfg_killnode = message;
cs_name_t reason;
ENTER();
log_printf(LOGSYS_LEVEL_DEBUG, "request to kill node %d(us=%d): %s\n", req_exec_cfg_killnode->nodeid, api->totem_nodeid_get(), reason.value);
if (req_exec_cfg_killnode->nodeid == api->totem_nodeid_get()) {
marshall_from_mar_name_t(&reason, &req_exec_cfg_killnode->reason);
log_printf(LOGSYS_LEVEL_NOTICE, "Killed by node %d: %s\n",
nodeid, reason.value);
corosync_fatal_error(COROSYNC_FATAL_ERROR_EXIT);
}
LEAVE();
}
/*
* Self shutdown
*/
static void message_handler_req_exec_cfg_shutdown (
const void *message,
unsigned int nodeid)
{
ENTER();
log_printf(LOGSYS_LEVEL_NOTICE, "Node %d was shut down by sysadmin\n", nodeid);
if (nodeid == api->totem_nodeid_get()) {
api->request_shutdown();
}
LEAVE();
}
static void message_handler_req_exec_cfg_crypto_set (
const void *message,
unsigned int nodeid)
{
const struct req_exec_cfg_crypto_set *req_exec_cfg_crypto_set = message;
ENTER();
log_printf(LOGSYS_LEVEL_NOTICE, "Node %d requested set crypto to %d\n", nodeid, req_exec_cfg_crypto_set->type);
api->totem_crypto_set(req_exec_cfg_crypto_set->type);
LEAVE();
}
/*
* Library Interface Implementation
*/
static void message_handler_req_lib_cfg_ringstatusget (
void *conn,
const void *msg)
{
struct res_lib_cfg_ringstatusget res_lib_cfg_ringstatusget;
struct totem_ip_address interfaces[INTERFACE_MAX];
unsigned int iface_count;
char **status;
const char *totem_ip_string;
unsigned int i;
ENTER();
res_lib_cfg_ringstatusget.header.id = MESSAGE_RES_CFG_RINGSTATUSGET;
res_lib_cfg_ringstatusget.header.size = sizeof (struct res_lib_cfg_ringstatusget);
res_lib_cfg_ringstatusget.header.error = CS_OK;
api->totem_ifaces_get (
api->totem_nodeid_get(),
interfaces,
&status,
&iface_count);
res_lib_cfg_ringstatusget.interface_count = iface_count;
for (i = 0; i < iface_count; i++) {
totem_ip_string
= (const char *)api->totem_ip_print (&interfaces[i]);
strcpy ((char *)&res_lib_cfg_ringstatusget.interface_status[i],
status[i]);
strcpy ((char *)&res_lib_cfg_ringstatusget.interface_name[i],
totem_ip_string);
}
api->ipc_response_send (
conn,
&res_lib_cfg_ringstatusget,
sizeof (struct res_lib_cfg_ringstatusget));
LEAVE();
}
static void message_handler_req_lib_cfg_ringreenable (
void *conn,
const void *msg)
{
struct req_exec_cfg_ringreenable req_exec_cfg_ringreenable;
struct iovec iovec;
ENTER();
req_exec_cfg_ringreenable.header.size =
sizeof (struct req_exec_cfg_ringreenable);
req_exec_cfg_ringreenable.header.id = SERVICE_ID_MAKE (CFG_SERVICE,
MESSAGE_REQ_EXEC_CFG_RINGREENABLE);
api->ipc_source_set (&req_exec_cfg_ringreenable.source, conn);
iovec.iov_base = (char *)&req_exec_cfg_ringreenable;
iovec.iov_len = sizeof (struct req_exec_cfg_ringreenable);
assert (api->totem_mcast (&iovec, 1, TOTEM_SAFE) == 0);
LEAVE();
}
static void message_handler_req_lib_cfg_statetrack (
void *conn,
const void *msg)
{
struct cfg_info *ci = (struct cfg_info *)api->ipc_private_data_get (conn);
struct res_lib_cfg_statetrack res_lib_cfg_statetrack;
ENTER();
/*
* We only do shutdown tracking at the moment
*/
if (list_empty(&ci->list)) {
list_add(&ci->list, &trackers_list);
ci->tracker_conn = conn;
if (shutdown_con) {
/*
* Shutdown already in progress, ask the newcomer's opinion
*/
ci->shutdown_reply = SHUTDOWN_REPLY_UNKNOWN;
shutdown_expected++;
send_test_shutdown(conn, NULL, CS_OK);
}
}
res_lib_cfg_statetrack.header.size = sizeof(struct res_lib_cfg_statetrack);
res_lib_cfg_statetrack.header.id = MESSAGE_RES_CFG_STATETRACKSTART;
res_lib_cfg_statetrack.header.error = CS_OK;
api->ipc_response_send(conn, &res_lib_cfg_statetrack,
sizeof(res_lib_cfg_statetrack));
LEAVE();
}
static void message_handler_req_lib_cfg_statetrackstop (
void *conn,
const void *msg)
{
struct cfg_info *ci = (struct cfg_info *)api->ipc_private_data_get (conn);
// struct req_lib_cfg_statetrackstop *req_lib_cfg_statetrackstop = (struct req_lib_cfg_statetrackstop *)message;
ENTER();
remove_ci_from_shutdown(ci);
LEAVE();
}
static void message_handler_req_lib_cfg_administrativestateset (
void *conn,
const void *msg)
{
// struct req_lib_cfg_administrativestateset *req_lib_cfg_administrativestateset = (struct req_lib_cfg_administrativestateset *)message;
ENTER();
LEAVE();
}
static void message_handler_req_lib_cfg_administrativestateget (
void *conn,
const void *msg)
{
// struct req_lib_cfg_administrativestateget *req_lib_cfg_administrativestateget = (struct req_lib_cfg_administrativestateget *)message;
ENTER();
LEAVE();
}
static void message_handler_req_lib_cfg_serviceload (
void *conn,
const void *msg)
{
const struct req_lib_cfg_serviceload *req_lib_cfg_serviceload = msg;
struct res_lib_cfg_serviceload res_lib_cfg_serviceload;
ENTER();
api->service_link_and_init (
api,
(const char *)req_lib_cfg_serviceload->service_name,
req_lib_cfg_serviceload->service_ver);
res_lib_cfg_serviceload.header.id = MESSAGE_RES_CFG_SERVICEUNLOAD;
res_lib_cfg_serviceload.header.size = sizeof (struct res_lib_cfg_serviceload);
res_lib_cfg_serviceload.header.error = CS_OK;
api->ipc_response_send (
conn,
&res_lib_cfg_serviceload,
sizeof (struct res_lib_cfg_serviceload));
LEAVE();
}
static void message_handler_req_lib_cfg_serviceunload (
void *conn,
const void *msg)
{
const struct req_lib_cfg_serviceunload *req_lib_cfg_serviceunload = msg;
struct res_lib_cfg_serviceunload res_lib_cfg_serviceunload;
ENTER();
api->service_unlink_and_exit (
api,
(const char *)req_lib_cfg_serviceunload->service_name,
req_lib_cfg_serviceunload->service_ver);
res_lib_cfg_serviceunload.header.id = MESSAGE_RES_CFG_SERVICEUNLOAD;
res_lib_cfg_serviceunload.header.size = sizeof (struct res_lib_cfg_serviceunload);
res_lib_cfg_serviceunload.header.error = CS_OK;
api->ipc_response_send (
conn,
&res_lib_cfg_serviceunload,
sizeof (struct res_lib_cfg_serviceunload));
LEAVE();
}
static void message_handler_req_lib_cfg_killnode (
void *conn,
const void *msg)
{
const struct req_lib_cfg_killnode *req_lib_cfg_killnode = msg;
struct res_lib_cfg_killnode res_lib_cfg_killnode;
struct req_exec_cfg_killnode req_exec_cfg_killnode;
struct iovec iovec;
int res;
ENTER();
req_exec_cfg_killnode.header.size =
sizeof (struct req_exec_cfg_killnode);
req_exec_cfg_killnode.header.id = SERVICE_ID_MAKE (CFG_SERVICE,
MESSAGE_REQ_EXEC_CFG_KILLNODE);
req_exec_cfg_killnode.nodeid = req_lib_cfg_killnode->nodeid;
marshall_to_mar_name_t(&req_exec_cfg_killnode.reason, &req_lib_cfg_killnode->reason);
iovec.iov_base = (char *)&req_exec_cfg_killnode;
iovec.iov_len = sizeof (struct req_exec_cfg_killnode);
res = api->totem_mcast (&iovec, 1, TOTEM_SAFE);
res_lib_cfg_killnode.header.size = sizeof(struct res_lib_cfg_killnode);
res_lib_cfg_killnode.header.id = MESSAGE_RES_CFG_KILLNODE;
res_lib_cfg_killnode.header.error = CS_OK;
api->ipc_response_send(conn, &res_lib_cfg_killnode,
sizeof(res_lib_cfg_killnode));
LEAVE();
}
static void message_handler_req_lib_cfg_tryshutdown (
void *conn,
const void *msg)
{
struct cfg_info *ci = (struct cfg_info *)api->ipc_private_data_get (conn);
const struct req_lib_cfg_tryshutdown *req_lib_cfg_tryshutdown = msg;
struct list_head *iter;
ENTER();
if (req_lib_cfg_tryshutdown->flags == CFG_SHUTDOWN_FLAG_IMMEDIATE) {
struct res_lib_cfg_tryshutdown res_lib_cfg_tryshutdown;
/*
* Tell other nodes
*/
send_shutdown();
res_lib_cfg_tryshutdown.header.size = sizeof(struct res_lib_cfg_tryshutdown);
res_lib_cfg_tryshutdown.header.id = MESSAGE_RES_CFG_TRYSHUTDOWN;
res_lib_cfg_tryshutdown.header.error = CS_OK;
api->ipc_response_send(conn, &res_lib_cfg_tryshutdown,
sizeof(res_lib_cfg_tryshutdown));
LEAVE();
return;
}
/*
* Shutdown in progress, return an error
*/
if (shutdown_con) {
struct res_lib_cfg_tryshutdown res_lib_cfg_tryshutdown;
res_lib_cfg_tryshutdown.header.size = sizeof(struct res_lib_cfg_tryshutdown);
res_lib_cfg_tryshutdown.header.id = MESSAGE_RES_CFG_TRYSHUTDOWN;
res_lib_cfg_tryshutdown.header.error = CS_ERR_EXIST;
api->ipc_response_send(conn, &res_lib_cfg_tryshutdown,
sizeof(res_lib_cfg_tryshutdown));
LEAVE();
return;
}
ci->conn = conn;
shutdown_con = (struct cfg_info *)api->ipc_private_data_get (conn);
shutdown_flags = req_lib_cfg_tryshutdown->flags;
shutdown_yes = 0;
shutdown_no = 0;
/*
* Count the number of listeners
*/
shutdown_expected = 0;
for (iter = trackers_list.next; iter != &trackers_list; iter = iter->next) {
struct cfg_info *testci = list_entry(iter, struct cfg_info, list);
/*
* It is assumed that we will allow shutdown
*/
if (testci != ci) {
testci->shutdown_reply = SHUTDOWN_REPLY_UNKNOWN;
shutdown_expected++;
}
}
/*
* If no-one is listening for events then we can just go down now
*/
if (shutdown_expected == 0) {
struct res_lib_cfg_tryshutdown res_lib_cfg_tryshutdown;
res_lib_cfg_tryshutdown.header.size = sizeof(struct res_lib_cfg_tryshutdown);
res_lib_cfg_tryshutdown.header.id = MESSAGE_RES_CFG_TRYSHUTDOWN;
res_lib_cfg_tryshutdown.header.error = CS_OK;
/*
* Tell originator that shutdown was confirmed
*/
api->ipc_response_send(conn, &res_lib_cfg_tryshutdown,
sizeof(res_lib_cfg_tryshutdown));
send_shutdown();
LEAVE();
return;
}
else {
hdb_handle_t cfg_handle;
hdb_handle_t find_handle;
char *timeout_str;
unsigned int shutdown_timeout = DEFAULT_SHUTDOWN_TIMEOUT;
/*
* Look for a shutdown timeout in objdb
*/
api->object_find_create(OBJECT_PARENT_HANDLE, "cfg", strlen("cfg"), &find_handle);
api->object_find_next(find_handle, &cfg_handle);
api->object_find_destroy(find_handle);
if (cfg_handle) {
if ( !api->object_key_get(cfg_handle,
"shutdown_timeout",
strlen("shutdown_timeout"),
(void *)&timeout_str,
NULL)) {
shutdown_timeout = atoi(timeout_str);
}
}
/*
* Start the timer. If we don't get a full set of replies before this goes
* off we'll cancel the shutdown
*/
api->timer_add_duration((unsigned long long)shutdown_timeout*1000000000, NULL,
shutdown_timer_fn, &shutdown_timer);
/*
* Tell the users we would like to shut down
*/
send_test_shutdown(NULL, conn, CS_OK);
}
/*
* We don't sent a reply to the caller here.
* We send it when we know if we can shut down or not
*/
LEAVE();
}
static void message_handler_req_lib_cfg_replytoshutdown (
void *conn,
const void *msg)
{
struct cfg_info *ci = (struct cfg_info *)api->ipc_private_data_get (conn);
const struct req_lib_cfg_replytoshutdown *req_lib_cfg_replytoshutdown = msg;
struct res_lib_cfg_replytoshutdown res_lib_cfg_replytoshutdown;
int status = CS_OK;
ENTER();
if (!shutdown_con) {
status = CS_ERR_ACCESS;
goto exit_fn;
}
if (req_lib_cfg_replytoshutdown->response) {
shutdown_yes++;
ci->shutdown_reply = SHUTDOWN_REPLY_YES;
}
else {
shutdown_no++;
ci->shutdown_reply = SHUTDOWN_REPLY_NO;
}
check_shutdown_status();
exit_fn:
res_lib_cfg_replytoshutdown.header.error = status;
res_lib_cfg_replytoshutdown.header.id = MESSAGE_RES_CFG_REPLYTOSHUTDOWN;
res_lib_cfg_replytoshutdown.header.size = sizeof(res_lib_cfg_replytoshutdown);
api->ipc_response_send(conn, &res_lib_cfg_replytoshutdown,
sizeof(res_lib_cfg_replytoshutdown));
LEAVE();
}
static void message_handler_req_lib_cfg_get_node_addrs (void *conn,
const void *msg)
{
struct totem_ip_address node_ifs[INTERFACE_MAX];
char buf[PIPE_BUF];
char **status;
unsigned int num_interfaces = 0;
int ret = CS_OK;
int i;
const struct req_lib_cfg_get_node_addrs *req_lib_cfg_get_node_addrs = msg;
struct res_lib_cfg_get_node_addrs *res_lib_cfg_get_node_addrs = (struct res_lib_cfg_get_node_addrs *)buf;
unsigned int nodeid = req_lib_cfg_get_node_addrs->nodeid;
if (nodeid == 0)
nodeid = api->totem_nodeid_get();
api->totem_ifaces_get(nodeid, node_ifs, &status, &num_interfaces);
res_lib_cfg_get_node_addrs->header.size = sizeof(struct res_lib_cfg_get_node_addrs) + (num_interfaces * TOTEMIP_ADDRLEN);
res_lib_cfg_get_node_addrs->header.id = MESSAGE_RES_CFG_GET_NODE_ADDRS;
res_lib_cfg_get_node_addrs->header.error = ret;
res_lib_cfg_get_node_addrs->num_addrs = num_interfaces;
if (num_interfaces) {
res_lib_cfg_get_node_addrs->family = node_ifs[0].family;
for (i = 0; i<num_interfaces; i++) {
memcpy(&res_lib_cfg_get_node_addrs->addrs[i][0], node_ifs[i].addr, TOTEMIP_ADDRLEN);
}
}
else {
res_lib_cfg_get_node_addrs->header.error = CS_ERR_NOT_EXIST;
}
api->ipc_response_send(conn, res_lib_cfg_get_node_addrs, res_lib_cfg_get_node_addrs->header.size);
}
static void message_handler_req_lib_cfg_local_get (void *conn, const void *msg)
{
struct res_lib_cfg_local_get res_lib_cfg_local_get;
res_lib_cfg_local_get.header.size = sizeof(res_lib_cfg_local_get);
res_lib_cfg_local_get.header.id = MESSAGE_RES_CFG_LOCAL_GET;
res_lib_cfg_local_get.header.error = CS_OK;
res_lib_cfg_local_get.local_nodeid = api->totem_nodeid_get ();
api->ipc_response_send(conn, &res_lib_cfg_local_get,
sizeof(res_lib_cfg_local_get));
}
static void message_handler_req_lib_cfg_crypto_set (
void *conn,
const void *msg)
{
const struct req_lib_cfg_crypto_set *req_lib_cfg_crypto_set = msg;
struct res_lib_cfg_crypto_set res_lib_cfg_crypto_set;
struct req_exec_cfg_crypto_set req_exec_cfg_crypto_set;
struct iovec iovec;
int ret = CS_ERR_INVALID_PARAM;
req_exec_cfg_crypto_set.header.size =
sizeof (struct req_exec_cfg_crypto_set);
req_exec_cfg_crypto_set.header.id = SERVICE_ID_MAKE (CFG_SERVICE,
MESSAGE_REQ_EXEC_CFG_CRYPTO_SET);
/*
* Set it locally first so we can tell if it is allowed
*/
if (api->totem_crypto_set(req_lib_cfg_crypto_set->type) == 0) {
req_exec_cfg_crypto_set.type = req_lib_cfg_crypto_set->type;
iovec.iov_base = (char *)&req_exec_cfg_crypto_set;
iovec.iov_len = sizeof (struct req_exec_cfg_crypto_set);
assert (api->totem_mcast (&iovec, 1, TOTEM_SAFE) == 0);
ret = CS_OK;
}
res_lib_cfg_crypto_set.header.size = sizeof(res_lib_cfg_crypto_set);
res_lib_cfg_crypto_set.header.id = MESSAGE_RES_CFG_CRYPTO_SET;
res_lib_cfg_crypto_set.header.error = ret;
api->ipc_response_send(conn, &res_lib_cfg_crypto_set,
sizeof(res_lib_cfg_crypto_set));
}
diff --git a/services/confdb.c b/services/confdb.c
index ea27f033..c7c78086 100644
--- a/services/confdb.c
+++ b/services/confdb.c
@@ -1,742 +1,745 @@
/*
* Copyright (c) 2008-2009 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Christine Caulfield (ccaulfie@redhat.com)
*
* This software licensed under BSD license, the text of which follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the MontaVista Software, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <corosync/corotypes.h>
#include <corosync/coroipc_types.h>
#include <corosync/corodefs.h>
#include <corosync/cfg.h>
#include <corosync/list.h>
#include <corosync/mar_gen.h>
#include <corosync/ipc_confdb.h>
#include <corosync/lcr/lcr_comp.h>
#include <corosync/engine/logsys.h>
#include <corosync/engine/coroapi.h>
LOGSYS_DECLARE_SUBSYS ("CONFDB");
static hdb_handle_t *
m2h (mar_uint64_t *m)
{
/* FIXME enable the following when/if we use gnulib:
(it's a compile-time assertion; i.e., zero run-time cost)
verify (sizeof (*m) == sizeof (hdb_handle_t)); */
return (void *) m;
}
static struct corosync_api_v1 *api;
static int confdb_exec_init_fn (
struct corosync_api_v1 *corosync_api);
static int confdb_lib_init_fn (void *conn);
static int confdb_lib_exit_fn (void *conn);
static void message_handler_req_lib_confdb_object_create (void *conn,
const void *message);
static void message_handler_req_lib_confdb_object_destroy (void *conn,
const void *message);
static void message_handler_req_lib_confdb_object_find_destroy (void *conn,
const void *message);
static void message_handler_req_lib_confdb_key_create (void *conn,
const void *message);
static void message_handler_req_lib_confdb_key_get (void *conn,
const void *message);
static void message_handler_req_lib_confdb_key_replace (void *conn,
const void *message);
static void message_handler_req_lib_confdb_key_delete (void *conn,
const void *message);
static void message_handler_req_lib_confdb_key_iter (void *conn,
const void *message);
static void message_handler_req_lib_confdb_key_increment (void *conn,
const void *message);
static void message_handler_req_lib_confdb_key_decrement (void *conn,
const void *message);
static void message_handler_req_lib_confdb_object_iter (void *conn,
const void *message);
static void message_handler_req_lib_confdb_object_find (void *conn,
const void *message);
static void message_handler_req_lib_confdb_object_parent_get (void *conn,
const void *message);
static void message_handler_req_lib_confdb_write (void *conn,
const void *message);
static void message_handler_req_lib_confdb_reload (void *conn,
const void *message);
static void message_handler_req_lib_confdb_track_start (void *conn,
const void *message);
static void message_handler_req_lib_confdb_track_stop (void *conn,
const void *message);
static void confdb_notify_lib_of_key_change(
object_change_type_t change_type,
hdb_handle_t parent_object_handle,
hdb_handle_t object_handle,
const void *object_name_pt, size_t object_name_len,
const void *key_name_pt, size_t key_name_len,
const void *key_value_pt, size_t key_value_len,
void *priv_data_pt);
static void confdb_notify_lib_of_new_object(
hdb_handle_t parent_object_handle,
hdb_handle_t object_handle,
const uint8_t *name_pt, size_t name_len,
void *priv_data_pt);
static void confdb_notify_lib_of_destroyed_object(
hdb_handle_t parent_object_handle,
const uint8_t *name_pt, size_t name_len,
void *priv_data_pt);
/*
* Library Handler Definition
*/
static struct corosync_lib_handler confdb_lib_engine[] =
{
{ /* 0 */
.lib_handler_fn = message_handler_req_lib_confdb_object_create,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 1 */
.lib_handler_fn = message_handler_req_lib_confdb_object_destroy,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 2 */
.lib_handler_fn = message_handler_req_lib_confdb_object_find,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 3 */
.lib_handler_fn = message_handler_req_lib_confdb_key_create,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 4 */
.lib_handler_fn = message_handler_req_lib_confdb_key_get,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 5 */
.lib_handler_fn = message_handler_req_lib_confdb_key_replace,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 6 */
.lib_handler_fn = message_handler_req_lib_confdb_key_delete,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 7 */
.lib_handler_fn = message_handler_req_lib_confdb_object_iter,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 8 */
.lib_handler_fn = message_handler_req_lib_confdb_object_parent_get,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 9 */
.lib_handler_fn = message_handler_req_lib_confdb_key_iter,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 10 */
.lib_handler_fn = message_handler_req_lib_confdb_track_start,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 11 */
.lib_handler_fn = message_handler_req_lib_confdb_track_stop,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 12 */
.lib_handler_fn = message_handler_req_lib_confdb_write,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 13 */
.lib_handler_fn = message_handler_req_lib_confdb_reload,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 14 */
.lib_handler_fn = message_handler_req_lib_confdb_object_find_destroy,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 15 */
.lib_handler_fn = message_handler_req_lib_confdb_key_increment,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 16 */
.lib_handler_fn = message_handler_req_lib_confdb_key_decrement,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
};
struct corosync_service_engine confdb_service_engine = {
.name = "corosync cluster config database access v1.01",
.id = CONFDB_SERVICE,
.priority = 1,
.private_data_size = 0,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED,
.allow_inquorate = CS_LIB_ALLOW_INQUORATE,
.lib_init_fn = confdb_lib_init_fn,
.lib_exit_fn = confdb_lib_exit_fn,
.lib_engine = confdb_lib_engine,
.lib_engine_count = sizeof (confdb_lib_engine) / sizeof (struct corosync_lib_handler),
.exec_init_fn = confdb_exec_init_fn,
};
/*
* Dynamic loader definition
*/
static struct corosync_service_engine *confdb_get_service_engine_ver0 (void);
static struct corosync_service_engine_iface_ver0 confdb_service_engine_iface = {
.corosync_get_service_engine_ver0 = confdb_get_service_engine_ver0
};
static struct lcr_iface corosync_confdb_ver0[1] = {
{
.name = "corosync_confdb",
.version = 0,
.versions_replace = 0,
.versions_replace_count = 0,
.dependencies = 0,
.dependency_count = 0,
.constructor = NULL,
.destructor = NULL,
.interfaces = NULL
}
};
static struct lcr_comp confdb_comp_ver0 = {
.iface_count = 1,
.ifaces = corosync_confdb_ver0
};
static struct corosync_service_engine *confdb_get_service_engine_ver0 (void)
{
return (&confdb_service_engine);
}
#ifdef COROSYNC_SOLARIS
void corosync_lcr_component_register (void);
void corosync_lcr_component_register (void) {
#else
__attribute__ ((constructor)) static void corosync_lcr_component_register (void) {
#endif
lcr_interfaces_set (&corosync_confdb_ver0[0], &confdb_service_engine_iface);
lcr_component_register (&confdb_comp_ver0);
}
static int confdb_exec_init_fn (
struct corosync_api_v1 *corosync_api)
{
+#ifdef COROSYNC_SOLARIS
+ logsys_subsys_init();
+#endif
api = corosync_api;
return 0;
}
static int confdb_lib_init_fn (void *conn)
{
log_printf(LOGSYS_LEVEL_DEBUG, "lib_init_fn: conn=%p\n", conn);
return (0);
}
static int confdb_lib_exit_fn (void *conn)
{
log_printf(LOGSYS_LEVEL_DEBUG, "exit_fn for conn=%p\n", conn);
/* cleanup the object trackers for this client. */
api->object_track_stop(confdb_notify_lib_of_key_change,
confdb_notify_lib_of_new_object,
confdb_notify_lib_of_destroyed_object,
NULL,
conn);
return (0);
}
static void message_handler_req_lib_confdb_object_create (void *conn,
const void *message)
{
const struct req_lib_confdb_object_create *req_lib_confdb_object_create
= message;
struct res_lib_confdb_object_create res_lib_confdb_object_create;
hdb_handle_t object_handle;
int ret = CS_OK;
if (api->object_create(req_lib_confdb_object_create->parent_object_handle,
&object_handle,
req_lib_confdb_object_create->object_name.value,
req_lib_confdb_object_create->object_name.length))
ret = CS_ERR_ACCESS;
res_lib_confdb_object_create.object_handle = object_handle;
res_lib_confdb_object_create.header.size = sizeof(res_lib_confdb_object_create);
res_lib_confdb_object_create.header.id = MESSAGE_RES_CONFDB_OBJECT_CREATE;
res_lib_confdb_object_create.header.error = ret;
api->ipc_response_send(conn, &res_lib_confdb_object_create, sizeof(res_lib_confdb_object_create));
}
static void message_handler_req_lib_confdb_object_destroy (void *conn,
const void *message)
{
const struct req_lib_confdb_object_destroy *req_lib_confdb_object_destroy
= message;
coroipc_response_header_t res;
int ret = CS_OK;
if (api->object_destroy(req_lib_confdb_object_destroy->object_handle))
ret = CS_ERR_ACCESS;
res.size = sizeof(res);
res.id = MESSAGE_RES_CONFDB_OBJECT_DESTROY;
res.error = ret;
api->ipc_response_send(conn, &res, sizeof(res));
}
static void message_handler_req_lib_confdb_object_find_destroy (void *conn,
const void *message)
{
const struct req_lib_confdb_object_find_destroy
*req_lib_confdb_object_find_destroy = message;
coroipc_response_header_t res;
int ret = CS_OK;
if (api->object_find_destroy(req_lib_confdb_object_find_destroy->find_handle))
ret = CS_ERR_ACCESS;
res.size = sizeof(res);
res.id = MESSAGE_RES_CONFDB_OBJECT_FIND_DESTROY;
res.error = ret;
api->ipc_response_send(conn, &res, sizeof(res));
}
static void message_handler_req_lib_confdb_key_create (void *conn,
const void *message)
{
const struct req_lib_confdb_key_create *req_lib_confdb_key_create
= message;
coroipc_response_header_t res;
int ret = CS_OK;
if (api->object_key_create(req_lib_confdb_key_create->object_handle,
req_lib_confdb_key_create->key_name.value,
req_lib_confdb_key_create->key_name.length,
req_lib_confdb_key_create->value.value,
req_lib_confdb_key_create->value.length))
ret = CS_ERR_ACCESS;
res.size = sizeof(res);
res.id = MESSAGE_RES_CONFDB_KEY_CREATE;
res.error = ret;
api->ipc_response_send(conn, &res, sizeof(res));
}
static void message_handler_req_lib_confdb_key_get (void *conn,
const void *message)
{
const struct req_lib_confdb_key_get *req_lib_confdb_key_get = message;
struct res_lib_confdb_key_get res_lib_confdb_key_get;
size_t value_len;
void *value;
int ret = CS_OK;
if (api->object_key_get(req_lib_confdb_key_get->parent_object_handle,
req_lib_confdb_key_get->key_name.value,
req_lib_confdb_key_get->key_name.length,
&value,
&value_len))
ret = CS_ERR_ACCESS;
else {
memcpy(res_lib_confdb_key_get.value.value, value, value_len);
res_lib_confdb_key_get.value.length = value_len;
}
res_lib_confdb_key_get.header.size = sizeof(res_lib_confdb_key_get);
res_lib_confdb_key_get.header.id = MESSAGE_RES_CONFDB_KEY_GET;
res_lib_confdb_key_get.header.error = ret;
api->ipc_response_send(conn, &res_lib_confdb_key_get, sizeof(res_lib_confdb_key_get));
}
static void message_handler_req_lib_confdb_key_increment (void *conn,
const void *message)
{
const struct req_lib_confdb_key_get *req_lib_confdb_key_get = message;
struct res_lib_confdb_key_incdec res_lib_confdb_key_incdec;
int ret = CS_OK;
if (api->object_key_increment(req_lib_confdb_key_get->parent_object_handle,
req_lib_confdb_key_get->key_name.value,
req_lib_confdb_key_get->key_name.length,
&res_lib_confdb_key_incdec.value))
ret = CS_ERR_ACCESS;
res_lib_confdb_key_incdec.header.size = sizeof(res_lib_confdb_key_incdec);
res_lib_confdb_key_incdec.header.id = MESSAGE_RES_CONFDB_KEY_INCREMENT;
res_lib_confdb_key_incdec.header.error = ret;
api->ipc_response_send(conn, &res_lib_confdb_key_incdec, sizeof(res_lib_confdb_key_incdec));
}
static void message_handler_req_lib_confdb_key_decrement (void *conn,
const void *message)
{
const struct req_lib_confdb_key_get *req_lib_confdb_key_get = message;
struct res_lib_confdb_key_incdec res_lib_confdb_key_incdec;
int ret = CS_OK;
if (api->object_key_decrement(req_lib_confdb_key_get->parent_object_handle,
req_lib_confdb_key_get->key_name.value,
req_lib_confdb_key_get->key_name.length,
&res_lib_confdb_key_incdec.value))
ret = CS_ERR_ACCESS;
res_lib_confdb_key_incdec.header.size = sizeof(res_lib_confdb_key_incdec);
res_lib_confdb_key_incdec.header.id = MESSAGE_RES_CONFDB_KEY_DECREMENT;
res_lib_confdb_key_incdec.header.error = ret;
api->ipc_response_send(conn, &res_lib_confdb_key_incdec, sizeof(res_lib_confdb_key_incdec));
}
static void message_handler_req_lib_confdb_key_replace (void *conn,
const void *message)
{
const struct req_lib_confdb_key_replace *req_lib_confdb_key_replace
= message;
coroipc_response_header_t res;
int ret = CS_OK;
if (api->object_key_replace(req_lib_confdb_key_replace->object_handle,
req_lib_confdb_key_replace->key_name.value,
req_lib_confdb_key_replace->key_name.length,
req_lib_confdb_key_replace->new_value.value,
req_lib_confdb_key_replace->new_value.length))
ret = CS_ERR_ACCESS;
res.size = sizeof(res);
res.id = MESSAGE_RES_CONFDB_KEY_REPLACE;
res.error = ret;
api->ipc_response_send(conn, &res, sizeof(res));
}
static void message_handler_req_lib_confdb_key_delete (void *conn,
const void *message)
{
const struct req_lib_confdb_key_delete *req_lib_confdb_key_delete
= message;
coroipc_response_header_t res;
int ret = CS_OK;
if (api->object_key_delete(req_lib_confdb_key_delete->object_handle,
req_lib_confdb_key_delete->key_name.value,
req_lib_confdb_key_delete->key_name.length))
ret = CS_ERR_ACCESS;
res.size = sizeof(res);
res.id = MESSAGE_RES_CONFDB_KEY_DELETE;
res.error = ret;
api->ipc_response_send(conn, &res, sizeof(res));
}
static void message_handler_req_lib_confdb_object_parent_get (void *conn,
const void *message)
{
const struct req_lib_confdb_object_parent_get
*req_lib_confdb_object_parent_get = message;
struct res_lib_confdb_object_parent_get res_lib_confdb_object_parent_get;
hdb_handle_t object_handle;
int ret = CS_OK;
if (api->object_parent_get(req_lib_confdb_object_parent_get->object_handle,
&object_handle))
ret = CS_ERR_ACCESS;
res_lib_confdb_object_parent_get.parent_object_handle = object_handle;
res_lib_confdb_object_parent_get.header.size = sizeof(res_lib_confdb_object_parent_get);
res_lib_confdb_object_parent_get.header.id = MESSAGE_RES_CONFDB_OBJECT_CREATE;
res_lib_confdb_object_parent_get.header.error = ret;
api->ipc_response_send(conn, &res_lib_confdb_object_parent_get, sizeof(res_lib_confdb_object_parent_get));
}
static void message_handler_req_lib_confdb_key_iter (void *conn,
const void *message)
{
const struct req_lib_confdb_key_iter *req_lib_confdb_key_iter = message;
struct res_lib_confdb_key_iter res_lib_confdb_key_iter;
void *key_name;
size_t key_name_len;
void *value;
size_t value_len;
int ret = CS_OK;
if (api->object_key_iter_from(req_lib_confdb_key_iter->parent_object_handle,
req_lib_confdb_key_iter->next_entry,
&key_name,
&key_name_len,
&value,
&value_len))
ret = CS_ERR_ACCESS;
else {
memcpy(res_lib_confdb_key_iter.key_name.value, key_name, key_name_len);
memcpy(res_lib_confdb_key_iter.value.value, value, value_len);
res_lib_confdb_key_iter.key_name.length = key_name_len;
res_lib_confdb_key_iter.value.length = value_len;
}
res_lib_confdb_key_iter.header.size = sizeof(res_lib_confdb_key_iter);
res_lib_confdb_key_iter.header.id = MESSAGE_RES_CONFDB_KEY_ITER;
res_lib_confdb_key_iter.header.error = ret;
api->ipc_response_send(conn, &res_lib_confdb_key_iter, sizeof(res_lib_confdb_key_iter));
}
static void message_handler_req_lib_confdb_object_iter (void *conn,
const void *message)
{
const struct req_lib_confdb_object_iter *req_lib_confdb_object_iter
= message;
struct res_lib_confdb_object_iter res_lib_confdb_object_iter;
size_t object_name_len;
int ret = CS_OK;
if (!req_lib_confdb_object_iter->find_handle) {
api->object_find_create(req_lib_confdb_object_iter->parent_object_handle,
NULL, 0,
m2h(&res_lib_confdb_object_iter.find_handle));
}
else
res_lib_confdb_object_iter.find_handle = req_lib_confdb_object_iter->find_handle;
if (api->object_find_next(res_lib_confdb_object_iter.find_handle,
m2h(&res_lib_confdb_object_iter.object_handle))) {
ret = CS_ERR_ACCESS;
api->object_find_destroy(res_lib_confdb_object_iter.find_handle);
}
else {
api->object_name_get(res_lib_confdb_object_iter.object_handle,
(char *)res_lib_confdb_object_iter.object_name.value,
&object_name_len);
res_lib_confdb_object_iter.object_name.length = object_name_len;
}
res_lib_confdb_object_iter.header.size = sizeof(res_lib_confdb_object_iter);
res_lib_confdb_object_iter.header.id = MESSAGE_RES_CONFDB_OBJECT_ITER;
res_lib_confdb_object_iter.header.error = ret;
api->ipc_response_send(conn, &res_lib_confdb_object_iter, sizeof(res_lib_confdb_object_iter));
}
static void message_handler_req_lib_confdb_object_find (void *conn,
const void *message)
{
const struct req_lib_confdb_object_find *req_lib_confdb_object_find
= message;
struct res_lib_confdb_object_find res_lib_confdb_object_find;
int ret = CS_OK;
if (!req_lib_confdb_object_find->find_handle) {
api->object_find_create(req_lib_confdb_object_find->parent_object_handle,
req_lib_confdb_object_find->object_name.value,
req_lib_confdb_object_find->object_name.length,
m2h(&res_lib_confdb_object_find.find_handle));
}
else
res_lib_confdb_object_find.find_handle = req_lib_confdb_object_find->find_handle;
if (api->object_find_next(res_lib_confdb_object_find.find_handle,
m2h(&res_lib_confdb_object_find.object_handle))) {
ret = CS_ERR_ACCESS;
api->object_find_destroy(res_lib_confdb_object_find.find_handle);
}
res_lib_confdb_object_find.header.size = sizeof(res_lib_confdb_object_find);
res_lib_confdb_object_find.header.id = MESSAGE_RES_CONFDB_OBJECT_FIND;
res_lib_confdb_object_find.header.error = ret;
api->ipc_response_send(conn, &res_lib_confdb_object_find, sizeof(res_lib_confdb_object_find));
}
static void message_handler_req_lib_confdb_write (void *conn,
const void *message)
{
struct res_lib_confdb_write res_lib_confdb_write;
int ret = CS_OK;
const char *error_string = NULL;
if (api->object_write_config(&error_string))
ret = CS_ERR_ACCESS;
res_lib_confdb_write.header.size = sizeof(res_lib_confdb_write);
res_lib_confdb_write.header.id = MESSAGE_RES_CONFDB_WRITE;
res_lib_confdb_write.header.error = ret;
if (error_string) {
strcpy((char *)res_lib_confdb_write.error.value, error_string);
res_lib_confdb_write.error.length = strlen(error_string) + 1;
} else
res_lib_confdb_write.error.length = 0;
api->ipc_response_send(conn, &res_lib_confdb_write, sizeof(res_lib_confdb_write));
}
static void message_handler_req_lib_confdb_reload (void *conn,
const void *message)
{
const struct req_lib_confdb_reload *req_lib_confdb_reload = message;
struct res_lib_confdb_reload res_lib_confdb_reload;
int ret = CS_OK;
const char *error_string = NULL;
if (api->object_reload_config(req_lib_confdb_reload->flush, &error_string))
ret = CS_ERR_ACCESS;
res_lib_confdb_reload.header.size = sizeof(res_lib_confdb_reload);
res_lib_confdb_reload.header.id = MESSAGE_RES_CONFDB_RELOAD;
res_lib_confdb_reload.header.error = ret;
if(error_string) {
strcpy((char *)res_lib_confdb_reload.error.value, error_string);
res_lib_confdb_reload.error.length = strlen(error_string) + 1;
} else
res_lib_confdb_reload.error.length = 0;
api->ipc_response_send(conn, &res_lib_confdb_reload, sizeof(res_lib_confdb_reload));
}
static void confdb_notify_lib_of_key_change(object_change_type_t change_type,
hdb_handle_t parent_object_handle,
hdb_handle_t object_handle,
const void *object_name_pt, size_t object_name_len,
const void *key_name_pt, size_t key_name_len,
const void *key_value_pt, size_t key_value_len,
void *priv_data_pt)
{
struct res_lib_confdb_key_change_callback res;
res.header.size = sizeof(res);
res.header.id = MESSAGE_RES_CONFDB_KEY_CHANGE_CALLBACK;
res.header.error = CS_OK;
// handle & type
res.change_type = change_type;
res.parent_object_handle = parent_object_handle;
res.object_handle = object_handle;
//object
memcpy(res.object_name.value, object_name_pt, object_name_len);
res.object_name.length = object_name_len;
//key name
memcpy(res.key_name.value, key_name_pt, key_name_len);
res.key_name.length = key_name_len;
//key value
memcpy(res.key_value.value, key_value_pt, key_value_len);
res.key_value.length = key_value_len;
api->ipc_dispatch_send(priv_data_pt, &res, sizeof(res));
}
static void confdb_notify_lib_of_new_object(hdb_handle_t parent_object_handle,
hdb_handle_t object_handle,
const uint8_t *name_pt, size_t name_len,
void *priv_data_pt)
{
struct res_lib_confdb_object_create_callback res;
res.header.size = sizeof(res);
res.header.id = MESSAGE_RES_CONFDB_OBJECT_CREATE_CALLBACK;
res.header.error = CS_OK;
res.parent_object_handle = parent_object_handle;
res.object_handle = object_handle;
memcpy(res.name.value, name_pt, name_len);
res.name.length = name_len;
api->ipc_dispatch_send(priv_data_pt, &res, sizeof(res));
}
static void confdb_notify_lib_of_destroyed_object(
hdb_handle_t parent_object_handle,
const uint8_t *name_pt, size_t name_len,
void *priv_data_pt)
{
struct res_lib_confdb_object_destroy_callback res;
res.header.size = sizeof(res);
res.header.id = MESSAGE_RES_CONFDB_OBJECT_DESTROY_CALLBACK;
res.header.error = CS_OK;
res.parent_object_handle = parent_object_handle;
memcpy(res.name.value, name_pt, name_len);
res.name.length = name_len;
api->ipc_dispatch_send(priv_data_pt, &res, sizeof(res));
}
static void message_handler_req_lib_confdb_track_start (void *conn,
const void *message)
{
const struct req_lib_confdb_object_track_start *req = message;
coroipc_response_header_t res;
api->object_track_start(req->object_handle,
req->flags,
confdb_notify_lib_of_key_change,
confdb_notify_lib_of_new_object,
confdb_notify_lib_of_destroyed_object,
NULL,
conn);
res.size = sizeof(res);
res.id = MESSAGE_RES_CONFDB_TRACK_START;
res.error = CS_OK;
api->ipc_response_send(conn, &res, sizeof(res));
}
static void message_handler_req_lib_confdb_track_stop (void *conn,
const void *message)
{
coroipc_response_header_t res;
api->object_track_stop(confdb_notify_lib_of_key_change,
confdb_notify_lib_of_new_object,
confdb_notify_lib_of_destroyed_object,
NULL,
conn);
res.size = sizeof(res);
res.id = MESSAGE_RES_CONFDB_TRACK_STOP;
res.error = CS_OK;
api->ipc_response_send(conn, &res, sizeof(res));
}
diff --git a/services/cpg.c b/services/cpg.c
index a1726a25..84691ac2 100644
--- a/services/cpg.c
+++ b/services/cpg.c
@@ -1,1083 +1,1086 @@
/*
* Copyright (c) 2006-2009 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Christine Caulfield (ccaulfie@redhat.com)
* Author: Jan Friesse (jfriesse@redhat.com)
*
* This software licensed under BSD license, the text of which follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the MontaVista Software, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#ifndef COROSYNC_BSD
#include <alloca.h>
#endif
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <sys/uio.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <time.h>
#include <unistd.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <corosync/corotypes.h>
#include <corosync/coroipc_types.h>
#include <corosync/corodefs.h>
#include <corosync/list.h>
#include <corosync/jhash.h>
#include <corosync/lcr/lcr_comp.h>
#include <corosync/engine/logsys.h>
#include <corosync/engine/coroapi.h>
#include <corosync/cpg.h>
#include <corosync/ipc_cpg.h>
LOGSYS_DECLARE_SUBSYS ("CPG");
#define GROUP_HASH_SIZE 32
enum cpg_message_req_types {
MESSAGE_REQ_EXEC_CPG_PROCJOIN = 0,
MESSAGE_REQ_EXEC_CPG_PROCLEAVE = 1,
MESSAGE_REQ_EXEC_CPG_JOINLIST = 2,
MESSAGE_REQ_EXEC_CPG_MCAST = 3,
MESSAGE_REQ_EXEC_CPG_DOWNLIST = 4
};
/*
* state` exec deliver
* match group name, pid -> if matched deliver for YES:
* XXX indicates impossible state
*
* join leave mcast
* UNJOINED XXX XXX NO
* LEAVE_STARTED XXX YES(unjoined_enter) YES
* JOIN_STARTED YES(join_started_enter) XXX NO
* JOIN_COMPLETED XXX NO YES
*
* join_started_enter
* set JOIN_COMPLETED
* add entry to process_info list
* unjoined_enter
* set UNJOINED
* delete entry from process_info list
*
*
* library accept join error codes
* UNJOINED YES(CPG_OK) set JOIN_STARTED
* LEAVE_STARTED NO(CPG_ERR_BUSY)
* JOIN_STARTED NO(CPG_ERR_EXIST)
* JOIN_COMPlETED NO(CPG_ERR_EXIST)
*
* library accept leave error codes
* UNJOINED NO(CPG_ERR_NOT_EXIST)
* LEAVE_STARTED NO(CPG_ERR_NOT_EXIST)
* JOIN_STARTED NO(CPG_ERR_BUSY)
* JOIN_COMPLETED YES(CPG_OK) set LEAVE_STARTED
*
* library accept mcast
* UNJOINED NO(CPG_ERR_NOT_EXIST)
* LEAVE_STARTED NO(CPG_ERR_NOT_EXIST)
* JOIN_STARTED YES(CPG_OK)
* JOIN_COMPLETED YES(CPG_OK)
*/
enum cpd_state {
CPD_STATE_UNJOINED,
CPD_STATE_LEAVE_STARTED,
CPD_STATE_JOIN_STARTED,
CPD_STATE_JOIN_COMPLETED
};
struct cpg_pd {
void *conn;
mar_cpg_name_t group_name;
uint32_t pid;
enum cpd_state cpd_state;
struct list_head list;
};
DECLARE_LIST_INIT(cpg_pd_list_head);
struct process_info {
unsigned int nodeid;
uint32_t pid;
mar_cpg_name_t group;
struct list_head list; /* on the group_info members list */
};
DECLARE_LIST_INIT(process_info_list_head);
struct join_list_entry {
uint32_t pid;
mar_cpg_name_t group_name;
};
static struct corosync_api_v1 *api = NULL;
/*
* Service Interfaces required by service_message_handler struct
*/
static void cpg_confchg_fn (
enum totem_configuration_type configuration_type,
const unsigned int *member_list, size_t member_list_entries,
const unsigned int *left_list, size_t left_list_entries,
const unsigned int *joined_list, size_t joined_list_entries,
const struct memb_ring_id *ring_id);
static int cpg_exec_init_fn (struct corosync_api_v1 *);
static int cpg_lib_init_fn (void *conn);
static int cpg_lib_exit_fn (void *conn);
static void message_handler_req_exec_cpg_procjoin (
const void *message,
unsigned int nodeid);
static void message_handler_req_exec_cpg_procleave (
const void *message,
unsigned int nodeid);
static void message_handler_req_exec_cpg_joinlist (
const void *message,
unsigned int nodeid);
static void message_handler_req_exec_cpg_mcast (
const void *message,
unsigned int nodeid);
static void message_handler_req_exec_cpg_downlist (
const void *message,
unsigned int nodeid);
static void exec_cpg_procjoin_endian_convert (void *msg);
static void exec_cpg_joinlist_endian_convert (void *msg);
static void exec_cpg_mcast_endian_convert (void *msg);
static void exec_cpg_downlist_endian_convert (void *msg);
static void message_handler_req_lib_cpg_join (void *conn, const void *message);
static void message_handler_req_lib_cpg_leave (void *conn, const void *message);
static void message_handler_req_lib_cpg_mcast (void *conn, const void *message);
static void message_handler_req_lib_cpg_membership (void *conn,
const void *message);
static void message_handler_req_lib_cpg_local_get (void *conn,
const void *message);
static int cpg_node_joinleave_send (unsigned int pid, const mar_cpg_name_t *group_name, int fn, int reason);
static int cpg_exec_send_joinlist(void);
static void cpg_sync_init (void);
static int cpg_sync_process (void);
static void cpg_sync_activate (void);
static void cpg_sync_abort (void);
/*
* Library Handler Definition
*/
static struct corosync_lib_handler cpg_lib_engine[] =
{
{ /* 0 */
.lib_handler_fn = message_handler_req_lib_cpg_join,
.flow_control = CS_LIB_FLOW_CONTROL_REQUIRED
},
{ /* 1 */
.lib_handler_fn = message_handler_req_lib_cpg_leave,
.flow_control = CS_LIB_FLOW_CONTROL_REQUIRED
},
{ /* 2 */
.lib_handler_fn = message_handler_req_lib_cpg_mcast,
.flow_control = CS_LIB_FLOW_CONTROL_REQUIRED
},
{ /* 3 */
.lib_handler_fn = message_handler_req_lib_cpg_membership,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 4 */
.lib_handler_fn = message_handler_req_lib_cpg_local_get,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
}
};
static struct corosync_exec_handler cpg_exec_engine[] =
{
{ /* 0 */
.exec_handler_fn = message_handler_req_exec_cpg_procjoin,
.exec_endian_convert_fn = exec_cpg_procjoin_endian_convert
},
{ /* 1 */
.exec_handler_fn = message_handler_req_exec_cpg_procleave,
.exec_endian_convert_fn = exec_cpg_procjoin_endian_convert
},
{ /* 2 */
.exec_handler_fn = message_handler_req_exec_cpg_joinlist,
.exec_endian_convert_fn = exec_cpg_joinlist_endian_convert
},
{ /* 3 */
.exec_handler_fn = message_handler_req_exec_cpg_mcast,
.exec_endian_convert_fn = exec_cpg_mcast_endian_convert
},
{ /* 4 */
.exec_handler_fn = message_handler_req_exec_cpg_downlist,
.exec_endian_convert_fn = exec_cpg_downlist_endian_convert
},
};
struct corosync_service_engine cpg_service_engine = {
.name = "corosync cluster closed process group service v1.01",
.id = CPG_SERVICE,
.priority = 1,
.private_data_size = sizeof (struct cpg_pd),
.flow_control = CS_LIB_FLOW_CONTROL_REQUIRED,
.allow_inquorate = CS_LIB_ALLOW_INQUORATE,
.lib_init_fn = cpg_lib_init_fn,
.lib_exit_fn = cpg_lib_exit_fn,
.lib_engine = cpg_lib_engine,
.lib_engine_count = sizeof (cpg_lib_engine) / sizeof (struct corosync_lib_handler),
.exec_init_fn = cpg_exec_init_fn,
.exec_dump_fn = NULL,
.exec_engine = cpg_exec_engine,
.exec_engine_count = sizeof (cpg_exec_engine) / sizeof (struct corosync_exec_handler),
.confchg_fn = cpg_confchg_fn,
.sync_init = cpg_sync_init,
.sync_process = cpg_sync_process,
.sync_activate = cpg_sync_activate,
.sync_abort = cpg_sync_abort
};
/*
* Dynamic loader definition
*/
static struct corosync_service_engine *cpg_get_service_engine_ver0 (void);
static struct corosync_service_engine_iface_ver0 cpg_service_engine_iface = {
.corosync_get_service_engine_ver0 = cpg_get_service_engine_ver0
};
static struct lcr_iface corosync_cpg_ver0[1] = {
{
.name = "corosync_cpg",
.version = 0,
.versions_replace = 0,
.versions_replace_count = 0,
.dependencies = 0,
.dependency_count = 0,
.constructor = NULL,
.destructor = NULL,
.interfaces = NULL
}
};
static struct lcr_comp cpg_comp_ver0 = {
.iface_count = 1,
.ifaces = corosync_cpg_ver0
};
static struct corosync_service_engine *cpg_get_service_engine_ver0 (void)
{
return (&cpg_service_engine);
}
#ifdef COROSYNC_SOLARIS
void corosync_lcr_component_register (void);
void corosync_lcr_component_register (void) {
#else
__attribute__ ((constructor)) static void corosync_lcr_component_register (void) {
#endif
lcr_interfaces_set (&corosync_cpg_ver0[0], &cpg_service_engine_iface);
lcr_component_register (&cpg_comp_ver0);
}
struct req_exec_cpg_procjoin {
coroipc_request_header_t header __attribute__((aligned(8)));
mar_cpg_name_t group_name __attribute__((aligned(8)));
mar_uint32_t pid __attribute__((aligned(8)));
mar_uint32_t reason __attribute__((aligned(8)));
};
struct req_exec_cpg_mcast {
coroipc_request_header_t header __attribute__((aligned(8)));
mar_cpg_name_t group_name __attribute__((aligned(8)));
mar_uint32_t msglen __attribute__((aligned(8)));
mar_uint32_t pid __attribute__((aligned(8)));
mar_message_source_t source __attribute__((aligned(8)));
mar_uint8_t message[] __attribute__((aligned(8)));
};
struct req_exec_cpg_downlist {
coroipc_request_header_t header __attribute__((aligned(8)));
mar_uint32_t left_nodes __attribute__((aligned(8)));
mar_uint32_t nodeids[PROCESSOR_COUNT_MAX] __attribute__((aligned(8)));
};
static struct req_exec_cpg_downlist g_req_exec_cpg_downlist;
static void cpg_sync_init (void)
{
}
static int cpg_sync_process (void)
{
return cpg_exec_send_joinlist();
}
static void cpg_sync_activate (void)
{
}
static void cpg_sync_abort (void)
{
}
static int notify_lib_joinlist(
const mar_cpg_name_t *group_name,
void *conn,
int joined_list_entries,
mar_cpg_address_t *joined_list,
int left_list_entries,
mar_cpg_address_t *left_list,
int id)
{
int size;
char *buf;
struct list_head *iter;
int count;
struct res_lib_cpg_confchg_callback *res;
mar_cpg_address_t *retgi;
count = 0;
for (iter = process_info_list_head.next; iter != &process_info_list_head; iter = iter->next) {
struct process_info *pi = list_entry (iter, struct process_info, list);
if (mar_name_compare (&pi->group, group_name) == 0) {
int i;
int founded = 0;
for (i = 0; i < left_list_entries; i++) {
if (left_list[i].nodeid == pi->nodeid && left_list[i].pid == pi->pid) {
founded++;
}
}
if (!founded)
count++;
}
}
size = sizeof(struct res_lib_cpg_confchg_callback) +
sizeof(mar_cpg_address_t) * (count + left_list_entries + joined_list_entries);
buf = alloca(size);
if (!buf)
return CPG_ERR_LIBRARY;
res = (struct res_lib_cpg_confchg_callback *)buf;
res->joined_list_entries = joined_list_entries;
res->left_list_entries = left_list_entries;
res->member_list_entries = count;
retgi = res->member_list;
res->header.size = size;
res->header.id = id;
res->header.error = CS_OK;
memcpy(&res->group_name, group_name, sizeof(mar_cpg_name_t));
for (iter = process_info_list_head.next; iter != &process_info_list_head; iter = iter->next) {
struct process_info *pi=list_entry (iter, struct process_info, list);
if (mar_name_compare (&pi->group, group_name) == 0) {
int i;
int founded = 0;
for (i = 0;i < left_list_entries; i++) {
if (left_list[i].nodeid == pi->nodeid && left_list[i].pid == pi->pid) {
founded++;
}
}
if (!founded) {
retgi->nodeid = pi->nodeid;
retgi->pid = pi->pid;
retgi++;
}
}
}
if (left_list_entries) {
memcpy (retgi, left_list, left_list_entries * sizeof(mar_cpg_address_t));
retgi += left_list_entries;
}
if (joined_list_entries) {
memcpy (retgi, joined_list, joined_list_entries * sizeof(mar_cpg_address_t));
retgi += joined_list_entries;
}
if (conn) {
api->ipc_dispatch_send (conn, buf, size);
} else {
for (iter = cpg_pd_list_head.next; iter != &cpg_pd_list_head; iter = iter->next) {
struct cpg_pd *cpd = list_entry (iter, struct cpg_pd, list);
if (mar_name_compare (&cpd->group_name, group_name) == 0) {
assert (left_list_entries <= 1);
assert (joined_list_entries <= 1);
if (joined_list_entries) {
if (joined_list[0].pid == cpd->pid &&
joined_list[0].nodeid == api->totem_nodeid_get()) {
cpd->cpd_state = CPD_STATE_JOIN_COMPLETED;
}
}
if (cpd->cpd_state == CPD_STATE_JOIN_COMPLETED ||
cpd->cpd_state == CPD_STATE_LEAVE_STARTED) {
api->ipc_dispatch_send (cpd->conn, buf, size);
}
if (left_list_entries) {
if (left_list[0].pid == cpd->pid &&
left_list[0].nodeid == api->totem_nodeid_get()) {
cpd->pid = 0;
memset (&cpd->group_name, 0, sizeof(cpd->group_name));
cpd->cpd_state = CPD_STATE_UNJOINED;
}
}
}
}
}
return CPG_OK;
}
static int cpg_exec_init_fn (struct corosync_api_v1 *corosync_api)
{
+#ifdef COROSYNC_SOLARIS
+ logsys_subsys_init();
+#endif
api = corosync_api;
return (0);
}
static int cpg_lib_exit_fn (void *conn)
{
struct cpg_pd *cpd = (struct cpg_pd *)api->ipc_private_data_get (conn);
log_printf(LOGSYS_LEVEL_DEBUG, "exit_fn for conn=%p\n", conn);
if (cpd->group_name.length > 0) {
cpg_node_joinleave_send (cpd->pid, &cpd->group_name,
MESSAGE_REQ_EXEC_CPG_PROCLEAVE, CONFCHG_CPG_REASON_LEAVE);
}
list_del (&cpd->list);
api->ipc_refcnt_dec (conn);
return (0);
}
static int cpg_node_joinleave_send (unsigned int pid, const mar_cpg_name_t *group_name, int fn, int reason)
{
struct req_exec_cpg_procjoin req_exec_cpg_procjoin;
struct iovec req_exec_cpg_iovec;
int result;
memcpy(&req_exec_cpg_procjoin.group_name, group_name, sizeof(mar_cpg_name_t));
req_exec_cpg_procjoin.pid = pid;
req_exec_cpg_procjoin.reason = reason;
req_exec_cpg_procjoin.header.size = sizeof(req_exec_cpg_procjoin);
req_exec_cpg_procjoin.header.id = SERVICE_ID_MAKE(CPG_SERVICE, fn);
req_exec_cpg_iovec.iov_base = (char *)&req_exec_cpg_procjoin;
req_exec_cpg_iovec.iov_len = sizeof(req_exec_cpg_procjoin);
result = api->totem_mcast (&req_exec_cpg_iovec, 1, TOTEM_AGREED);
return (result);
}
static void cpg_confchg_fn (
enum totem_configuration_type configuration_type,
const unsigned int *member_list, size_t member_list_entries,
const unsigned int *left_list, size_t left_list_entries,
const unsigned int *joined_list, size_t joined_list_entries,
const struct memb_ring_id *ring_id)
{
int i;
uint32_t lowest_nodeid = 0xffffffff;
struct iovec req_exec_cpg_iovec;
/* We don't send the library joinlist in here because it can end up
out of order with the rest of the messages (which are totem ordered).
So we get the lowest nodeid to send out a list of left nodes instead.
On receipt of that message, all nodes will then notify their local clients
of the new joinlist */
if (left_list_entries) {
for (i = 0; i < member_list_entries; i++) {
if (member_list[i] < lowest_nodeid)
lowest_nodeid = member_list[i];
}
log_printf(LOGSYS_LEVEL_DEBUG, "confchg, low nodeid=%d, us = %d\n", lowest_nodeid, api->totem_nodeid_get());
if (lowest_nodeid == api->totem_nodeid_get()) {
g_req_exec_cpg_downlist.header.id = SERVICE_ID_MAKE(CPG_SERVICE, MESSAGE_REQ_EXEC_CPG_DOWNLIST);
g_req_exec_cpg_downlist.header.size = sizeof(struct req_exec_cpg_downlist);
g_req_exec_cpg_downlist.left_nodes = left_list_entries;
for (i = 0; i < left_list_entries; i++) {
g_req_exec_cpg_downlist.nodeids[i] = left_list[i];
}
log_printf(LOGSYS_LEVEL_DEBUG,
"confchg, build downlist: %lu nodes\n",
(long unsigned int) left_list_entries);
}
}
/* Don't send this message until we get the final configuration message */
if (configuration_type == TOTEM_CONFIGURATION_REGULAR && g_req_exec_cpg_downlist.left_nodes) {
req_exec_cpg_iovec.iov_base = (char *)&g_req_exec_cpg_downlist;
req_exec_cpg_iovec.iov_len = g_req_exec_cpg_downlist.header.size;
api->totem_mcast (&req_exec_cpg_iovec, 1, TOTEM_AGREED);
g_req_exec_cpg_downlist.left_nodes = 0;
log_printf(LOGSYS_LEVEL_DEBUG, "confchg, sent downlist\n");
}
}
/* Can byteswap join & leave messages */
static void exec_cpg_procjoin_endian_convert (void *msg)
{
struct req_exec_cpg_procjoin *req_exec_cpg_procjoin = msg;
req_exec_cpg_procjoin->pid = swab32(req_exec_cpg_procjoin->pid);
swab_mar_cpg_name_t (&req_exec_cpg_procjoin->group_name);
req_exec_cpg_procjoin->reason = swab32(req_exec_cpg_procjoin->reason);
}
static void exec_cpg_joinlist_endian_convert (void *msg_v)
{
char *msg = msg_v;
coroipc_response_header_t *res = (coroipc_response_header_t *)msg;
struct join_list_entry *jle = (struct join_list_entry *)(msg + sizeof(coroipc_response_header_t));
/* XXX shouldn't mar_res_header be swabbed? */
while ((const char*)jle < msg + res->size) {
jle->pid = swab32(jle->pid);
swab_mar_cpg_name_t (&jle->group_name);
jle++;
}
}
static void exec_cpg_downlist_endian_convert (void *msg)
{
struct req_exec_cpg_downlist *req_exec_cpg_downlist = msg;
unsigned int i;
req_exec_cpg_downlist->left_nodes = swab32(req_exec_cpg_downlist->left_nodes);
for (i = 0; i < req_exec_cpg_downlist->left_nodes; i++) {
req_exec_cpg_downlist->nodeids[i] = swab32(req_exec_cpg_downlist->nodeids[i]);
}
}
static void exec_cpg_mcast_endian_convert (void *msg)
{
struct req_exec_cpg_mcast *req_exec_cpg_mcast = msg;
swab_coroipc_request_header_t (&req_exec_cpg_mcast->header);
swab_mar_cpg_name_t (&req_exec_cpg_mcast->group_name);
req_exec_cpg_mcast->pid = swab32(req_exec_cpg_mcast->pid);
req_exec_cpg_mcast->msglen = swab32(req_exec_cpg_mcast->msglen);
swab_mar_message_source_t (&req_exec_cpg_mcast->source);
}
static struct process_info *process_info_find(const mar_cpg_name_t *group_name, uint32_t pid, unsigned int nodeid) {
struct list_head *iter;
for (iter = process_info_list_head.next; iter != &process_info_list_head; ) {
struct process_info *pi = list_entry (iter, struct process_info, list);
iter = iter->next;
if (pi->pid == pid && pi->nodeid == nodeid &&
mar_name_compare (&pi->group, group_name) == 0) {
return pi;
}
}
return NULL;
}
static void do_proc_join(
const mar_cpg_name_t *name,
uint32_t pid,
unsigned int nodeid,
int reason)
{
struct process_info *pi;
struct process_info *pi_entry;
mar_cpg_address_t notify_info;
struct list_head *list;
struct list_head *list_to_add = NULL;
if (process_info_find (name, pid, nodeid) != NULL) {
return ;
}
pi = malloc (sizeof (struct process_info));
if (!pi) {
log_printf(LOGSYS_LEVEL_WARNING, "Unable to allocate process_info struct");
return;
}
pi->nodeid = nodeid;
pi->pid = pid;
memcpy(&pi->group, name, sizeof(*name));
list_init(&pi->list);
/*
* Insert new process in sorted order so synchronization works properly
*/
list_to_add = &process_info_list_head;
for (list = process_info_list_head.next; list != &process_info_list_head; list = list->next) {
pi_entry = list_entry(list, struct process_info, list);
if (pi_entry->nodeid > pi->nodeid ||
(pi_entry->nodeid == pi->nodeid && pi_entry->pid > pi->pid)) {
break;
}
list_to_add = list;
}
list_splice (&pi->list, list_to_add);
notify_info.pid = pi->pid;
notify_info.nodeid = nodeid;
notify_info.reason = reason;
notify_lib_joinlist(&pi->group, NULL,
1, &notify_info,
0, NULL,
MESSAGE_RES_CPG_CONFCHG_CALLBACK);
}
static void message_handler_req_exec_cpg_downlist (
const void *message,
unsigned int nodeid)
{
const struct req_exec_cpg_downlist *req_exec_cpg_downlist = message;
int i;
mar_cpg_address_t left_list[1];
struct list_head *iter;
/*
FOR OPTIMALIZATION - Make list of lists
*/
log_printf (LOGSYS_LEVEL_DEBUG, "downlist left_list: %d\n", req_exec_cpg_downlist->left_nodes);
for (iter = process_info_list_head.next; iter != &process_info_list_head; ) {
struct process_info *pi = list_entry(iter, struct process_info, list);
iter = iter->next;
for (i = 0; i < req_exec_cpg_downlist->left_nodes; i++) {
if (pi->nodeid == req_exec_cpg_downlist->nodeids[i]) {
left_list[0].nodeid = pi->nodeid;
left_list[0].pid = pi->pid;
left_list[0].reason = CONFCHG_CPG_REASON_NODEDOWN;
notify_lib_joinlist(&pi->group, NULL,
0, NULL,
1, left_list,
MESSAGE_RES_CPG_CONFCHG_CALLBACK);
list_del (&pi->list);
free (pi);
}
}
}
}
static void message_handler_req_exec_cpg_procjoin (
const void *message,
unsigned int nodeid)
{
const struct req_exec_cpg_procjoin *req_exec_cpg_procjoin = message;
log_printf(LOGSYS_LEVEL_DEBUG, "got procjoin message from cluster node %d\n", nodeid);
do_proc_join (&req_exec_cpg_procjoin->group_name,
req_exec_cpg_procjoin->pid, nodeid,
CONFCHG_CPG_REASON_JOIN);
}
static void message_handler_req_exec_cpg_procleave (
const void *message,
unsigned int nodeid)
{
const struct req_exec_cpg_procjoin *req_exec_cpg_procjoin = message;
struct process_info *pi;
struct list_head *iter;
mar_cpg_address_t notify_info;
log_printf(LOGSYS_LEVEL_DEBUG, "got procleave message from cluster node %d\n", nodeid);
notify_info.pid = req_exec_cpg_procjoin->pid;
notify_info.nodeid = nodeid;
notify_info.reason = req_exec_cpg_procjoin->reason;
notify_lib_joinlist(&req_exec_cpg_procjoin->group_name, NULL,
0, NULL,
1, &notify_info,
MESSAGE_RES_CPG_CONFCHG_CALLBACK);
for (iter = process_info_list_head.next; iter != &process_info_list_head; ) {
pi = list_entry(iter, struct process_info, list);
iter = iter->next;
if (pi->pid == req_exec_cpg_procjoin->pid && pi->nodeid == nodeid &&
mar_name_compare (&pi->group, &req_exec_cpg_procjoin->group_name)==0) {
list_del (&pi->list);
free (pi);
}
}
}
/* Got a proclist from another node */
static void message_handler_req_exec_cpg_joinlist (
const void *message_v,
unsigned int nodeid)
{
const char *message = message_v;
const coroipc_response_header_t *res = (const coroipc_response_header_t *)message;
const struct join_list_entry *jle = (const struct join_list_entry *)(message + sizeof(coroipc_response_header_t));
log_printf(LOGSYS_LEVEL_NOTICE, "got joinlist message from node %d\n",
nodeid);
/* Ignore our own messages */
if (nodeid == api->totem_nodeid_get()) {
return;
}
while ((const char*)jle < message + res->size) {
do_proc_join (&jle->group_name, jle->pid, nodeid,
CONFCHG_CPG_REASON_NODEUP);
jle++;
}
}
static void message_handler_req_exec_cpg_mcast (
const void *message,
unsigned int nodeid)
{
const struct req_exec_cpg_mcast *req_exec_cpg_mcast = message;
struct res_lib_cpg_deliver_callback res_lib_cpg_mcast;
int msglen = req_exec_cpg_mcast->msglen;
struct list_head *iter;
struct cpg_pd *cpd;
struct iovec iovec[2];
res_lib_cpg_mcast.header.id = MESSAGE_RES_CPG_DELIVER_CALLBACK;
res_lib_cpg_mcast.header.size = sizeof(res_lib_cpg_mcast) + msglen;
res_lib_cpg_mcast.msglen = msglen;
res_lib_cpg_mcast.pid = req_exec_cpg_mcast->pid;
res_lib_cpg_mcast.nodeid = nodeid;
memcpy(&res_lib_cpg_mcast.group_name, &req_exec_cpg_mcast->group_name,
sizeof(mar_cpg_name_t));
iovec[0].iov_base = (void *)&res_lib_cpg_mcast;
iovec[0].iov_len = sizeof (res_lib_cpg_mcast);
iovec[1].iov_base = (char*)message+sizeof(*req_exec_cpg_mcast);
iovec[1].iov_len = msglen;
for (iter = cpg_pd_list_head.next; iter != &cpg_pd_list_head; ) {
cpd = list_entry(iter, struct cpg_pd, list);
iter = iter->next;
if ((cpd->cpd_state == CPD_STATE_LEAVE_STARTED || cpd->cpd_state == CPD_STATE_JOIN_COMPLETED)
&& (mar_name_compare (&cpd->group_name, &req_exec_cpg_mcast->group_name) == 0)) {
api->ipc_dispatch_iov_send (cpd->conn, iovec, 2);
}
}
}
static int cpg_exec_send_joinlist(void)
{
int count = 0;
struct list_head *iter;
coroipc_response_header_t *res;
char *buf;
struct join_list_entry *jle;
struct iovec req_exec_cpg_iovec;
for (iter = process_info_list_head.next; iter != &process_info_list_head; iter = iter->next) {
struct process_info *pi = list_entry (iter, struct process_info, list);
if (pi->nodeid == api->totem_nodeid_get ()) {
count++;
}
}
/* Nothing to send */
if (!count)
return 0;
buf = alloca(sizeof(coroipc_response_header_t) + sizeof(struct join_list_entry) * count);
if (!buf) {
log_printf(LOGSYS_LEVEL_WARNING, "Unable to allocate joinlist buffer");
return -1;
}
jle = (struct join_list_entry *)(buf + sizeof(coroipc_response_header_t));
res = (coroipc_response_header_t *)buf;
for (iter = process_info_list_head.next; iter != &process_info_list_head; iter = iter->next) {
struct process_info *pi = list_entry (iter, struct process_info, list);
if (pi->nodeid == api->totem_nodeid_get ()) {
memcpy (&jle->group_name, &pi->group, sizeof (mar_cpg_name_t));
jle->pid = pi->pid;
jle++;
}
}
res->id = SERVICE_ID_MAKE(CPG_SERVICE, MESSAGE_REQ_EXEC_CPG_JOINLIST);
res->size = sizeof(coroipc_response_header_t)+sizeof(struct join_list_entry) * count;
req_exec_cpg_iovec.iov_base = buf;
req_exec_cpg_iovec.iov_len = res->size;
return (api->totem_mcast (&req_exec_cpg_iovec, 1, TOTEM_AGREED));
}
static int cpg_lib_init_fn (void *conn)
{
struct cpg_pd *cpd = (struct cpg_pd *)api->ipc_private_data_get (conn);
memset (cpd, 0, sizeof(struct cpg_pd));
cpd->conn = conn;
list_add (&cpd->list, &cpg_pd_list_head);
api->ipc_refcnt_inc (conn);
log_printf(LOGSYS_LEVEL_DEBUG, "lib_init_fn: conn=%p, cpd=%p\n", conn, cpd);
return (0);
}
/* Join message from the library */
static void message_handler_req_lib_cpg_join (void *conn, const void *message)
{
const struct req_lib_cpg_join *req_lib_cpg_join = message;
struct cpg_pd *cpd = (struct cpg_pd *)api->ipc_private_data_get (conn);
struct res_lib_cpg_join res_lib_cpg_join;
cs_error_t error = CPG_OK;
switch (cpd->cpd_state) {
case CPD_STATE_UNJOINED:
error = CPG_OK;
cpd->cpd_state = CPD_STATE_JOIN_STARTED;
cpd->pid = req_lib_cpg_join->pid;
memcpy (&cpd->group_name, &req_lib_cpg_join->group_name,
sizeof (cpd->group_name));
cpg_node_joinleave_send (req_lib_cpg_join->pid,
&req_lib_cpg_join->group_name,
MESSAGE_REQ_EXEC_CPG_PROCJOIN, CONFCHG_CPG_REASON_JOIN);
break;
case CPD_STATE_LEAVE_STARTED:
error = CPG_ERR_BUSY;
break;
case CPD_STATE_JOIN_STARTED:
error = CPG_ERR_EXIST;
break;
case CPD_STATE_JOIN_COMPLETED:
error = CPG_ERR_EXIST;
break;
}
res_lib_cpg_join.header.size = sizeof(res_lib_cpg_join);
res_lib_cpg_join.header.id = MESSAGE_RES_CPG_JOIN;
res_lib_cpg_join.header.error = error;
api->ipc_response_send (conn, &res_lib_cpg_join, sizeof(res_lib_cpg_join));
}
/* Leave message from the library */
static void message_handler_req_lib_cpg_leave (void *conn, const void *message)
{
struct res_lib_cpg_leave res_lib_cpg_leave;
cs_error_t error = CPG_OK;
struct req_lib_cpg_leave *req_lib_cpg_leave = (struct req_lib_cpg_leave *)message;
struct cpg_pd *cpd = (struct cpg_pd *)api->ipc_private_data_get (conn);
log_printf(LOGSYS_LEVEL_DEBUG, "got leave request on %p\n", conn);
switch (cpd->cpd_state) {
case CPD_STATE_UNJOINED:
error = CPG_ERR_NOT_EXIST;
break;
case CPD_STATE_LEAVE_STARTED:
error = CPG_ERR_NOT_EXIST;
break;
case CPD_STATE_JOIN_STARTED:
error = CPG_ERR_BUSY;
break;
case CPD_STATE_JOIN_COMPLETED:
error = CPG_OK;
cpd->cpd_state = CPD_STATE_LEAVE_STARTED;
cpg_node_joinleave_send (req_lib_cpg_leave->pid,
&req_lib_cpg_leave->group_name,
MESSAGE_REQ_EXEC_CPG_PROCLEAVE,
CONFCHG_CPG_REASON_LEAVE);
break;
}
/* send return */
res_lib_cpg_leave.header.size = sizeof(res_lib_cpg_leave);
res_lib_cpg_leave.header.id = MESSAGE_RES_CPG_LEAVE;
res_lib_cpg_leave.header.error = error;
api->ipc_response_send(conn, &res_lib_cpg_leave, sizeof(res_lib_cpg_leave));
}
/* Mcast message from the library */
static void message_handler_req_lib_cpg_mcast (void *conn, const void *message)
{
const struct req_lib_cpg_mcast *req_lib_cpg_mcast = message;
struct cpg_pd *cpd = (struct cpg_pd *)api->ipc_private_data_get (conn);
mar_cpg_name_t group_name = cpd->group_name;
struct iovec req_exec_cpg_iovec[2];
struct req_exec_cpg_mcast req_exec_cpg_mcast;
struct res_lib_cpg_mcast res_lib_cpg_mcast;
int msglen = req_lib_cpg_mcast->msglen;
int result;
cs_error_t error = CPG_ERR_NOT_EXIST;
log_printf(LOGSYS_LEVEL_DEBUG, "got mcast request on %p\n", conn);
switch (cpd->cpd_state) {
case CPD_STATE_UNJOINED:
error = CPG_ERR_NOT_EXIST;
break;
case CPD_STATE_LEAVE_STARTED:
error = CPG_ERR_NOT_EXIST;
break;
case CPD_STATE_JOIN_STARTED:
error = CPG_OK;
break;
case CPD_STATE_JOIN_COMPLETED:
error = CPG_OK;
break;
}
if (error == CPG_OK) {
req_exec_cpg_mcast.header.size = sizeof(req_exec_cpg_mcast) + msglen;
req_exec_cpg_mcast.header.id = SERVICE_ID_MAKE(CPG_SERVICE,
MESSAGE_REQ_EXEC_CPG_MCAST);
req_exec_cpg_mcast.pid = cpd->pid;
req_exec_cpg_mcast.msglen = msglen;
api->ipc_source_set (&req_exec_cpg_mcast.source, conn);
memcpy(&req_exec_cpg_mcast.group_name, &group_name,
sizeof(mar_cpg_name_t));
req_exec_cpg_iovec[0].iov_base = (char *)&req_exec_cpg_mcast;
req_exec_cpg_iovec[0].iov_len = sizeof(req_exec_cpg_mcast);
req_exec_cpg_iovec[1].iov_base = (char *)&req_lib_cpg_mcast->message;
req_exec_cpg_iovec[1].iov_len = msglen;
result = api->totem_mcast (req_exec_cpg_iovec, 2, TOTEM_AGREED);
assert(result == 0);
}
res_lib_cpg_mcast.header.size = sizeof(res_lib_cpg_mcast);
res_lib_cpg_mcast.header.id = MESSAGE_RES_CPG_MCAST;
res_lib_cpg_mcast.header.error = error;
api->ipc_response_send (conn, &res_lib_cpg_mcast,
sizeof (res_lib_cpg_mcast));
}
static void message_handler_req_lib_cpg_membership (void *conn,
const void *message)
{
struct cpg_pd *cpd = (struct cpg_pd *)api->ipc_private_data_get (conn);
cs_error_t error = CPG_ERR_NOT_EXIST;
coroipc_response_header_t res;
switch (cpd->cpd_state) {
case CPD_STATE_UNJOINED:
error = CPG_ERR_NOT_EXIST;
break;
case CPD_STATE_LEAVE_STARTED:
error = CPG_ERR_NOT_EXIST;
break;
case CPD_STATE_JOIN_STARTED:
error = CPG_ERR_BUSY;
break;
case CPD_STATE_JOIN_COMPLETED:
error = CPG_OK;
break;
}
res.size = sizeof (res);
res.id = MESSAGE_RES_CPG_MEMBERSHIP;
res.error = error;
api->ipc_response_send (conn, &res, sizeof(res));
return;
if (error == CPG_OK) {
notify_lib_joinlist (&cpd->group_name, conn, 0, NULL, 0, NULL,
MESSAGE_RES_CPG_MEMBERSHIP);
}
}
static void message_handler_req_lib_cpg_local_get (void *conn,
const void *message)
{
struct res_lib_cpg_local_get res_lib_cpg_local_get;
res_lib_cpg_local_get.header.size = sizeof (res_lib_cpg_local_get);
res_lib_cpg_local_get.header.id = MESSAGE_RES_CPG_LOCAL_GET;
res_lib_cpg_local_get.header.error = CPG_OK;
res_lib_cpg_local_get.local_nodeid = api->totem_nodeid_get ();
api->ipc_response_send (conn, &res_lib_cpg_local_get,
sizeof (res_lib_cpg_local_get));
}
diff --git a/services/evs.c b/services/evs.c
index 0592d8c5..536bbbd0 100644
--- a/services/evs.c
+++ b/services/evs.c
@@ -1,527 +1,531 @@
/*
* Copyright (c) 2004-2006 MontaVista Software, Inc.
* Copyright (c) 2006-2009 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Steven Dake (sdake@redhat.com)
*
* This software licensed under BSD license, the text of which follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the MontaVista Software, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <sys/uio.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <time.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <corosync/swab.h>
#include <corosync/corotypes.h>
#include <corosync/coroipc_types.h>
#include <corosync/corodefs.h>
#include <corosync/mar_gen.h>
#include <corosync/lcr/lcr_comp.h>
#include <corosync/engine/coroapi.h>
#include <corosync/engine/logsys.h>
#include <corosync/list.h>
#include <corosync/evs.h>
#include <corosync/ipc_evs.h>
LOGSYS_DECLARE_SUBSYS ("EVS");
enum evs_exec_message_req_types {
MESSAGE_REQ_EXEC_EVS_MCAST = 0
};
/*
* Service Interfaces required by service_message_handler struct
*/
static int evs_exec_init_fn (
struct corosync_api_v1 *corosync_api);
static void evs_confchg_fn (
enum totem_configuration_type configuration_type,
const unsigned int *member_list, size_t member_list_entries,
const unsigned int *left_list, size_t left_list_entries,
const unsigned int *joined_list, size_t joined_list_entries,
const struct memb_ring_id *ring_id);
static void message_handler_req_exec_mcast (const void *msg, unsigned int nodeid);
static void req_exec_mcast_endian_convert (void *msg);
static void message_handler_req_evs_join (void *conn, const void *msg);
static void message_handler_req_evs_leave (void *conn, const void *msg);
static void message_handler_req_evs_mcast_joined (void *conn, const void *msg);
static void message_handler_req_evs_mcast_groups (void *conn, const void *msg);
static void message_handler_req_evs_membership_get (void *conn, const void *msg);
static int evs_lib_init_fn (void *conn);
static int evs_lib_exit_fn (void *conn);
struct evs_pd {
struct evs_group *groups;
int group_entries;
struct list_head list;
void *conn;
};
static struct corosync_api_v1 *api;
static struct corosync_lib_handler evs_lib_engine[] =
{
{ /* 0 */
.lib_handler_fn = message_handler_req_evs_join,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 1 */
.lib_handler_fn = message_handler_req_evs_leave,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 2 */
.lib_handler_fn = message_handler_req_evs_mcast_joined,
.flow_control = CS_LIB_FLOW_CONTROL_REQUIRED
},
{ /* 3 */
.lib_handler_fn = message_handler_req_evs_mcast_groups,
.flow_control = CS_LIB_FLOW_CONTROL_REQUIRED
},
{ /* 4 */
.lib_handler_fn = message_handler_req_evs_membership_get,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
}
};
static struct corosync_exec_handler evs_exec_engine[] =
{
{
.exec_handler_fn = message_handler_req_exec_mcast,
.exec_endian_convert_fn = req_exec_mcast_endian_convert
}
};
struct corosync_service_engine evs_service_engine = {
.name = "corosync extended virtual synchrony service",
.id = EVS_SERVICE,
.priority = 1,
.private_data_size = sizeof (struct evs_pd),
.flow_control = CS_LIB_FLOW_CONTROL_REQUIRED,
.lib_init_fn = evs_lib_init_fn,
.lib_exit_fn = evs_lib_exit_fn,
.lib_engine = evs_lib_engine,
.lib_engine_count = sizeof (evs_lib_engine) / sizeof (struct corosync_lib_handler),
.exec_engine = evs_exec_engine,
.exec_engine_count = sizeof (evs_exec_engine) / sizeof (struct corosync_exec_handler),
.confchg_fn = evs_confchg_fn,
.exec_init_fn = evs_exec_init_fn,
.exec_dump_fn = NULL
};
static DECLARE_LIST_INIT (confchg_notify);
/*
* Dynamic loading descriptor
*/
static struct corosync_service_engine *evs_get_service_engine_ver0 (void);
static struct corosync_service_engine_iface_ver0 evs_service_engine_iface = {
.corosync_get_service_engine_ver0 = evs_get_service_engine_ver0
};
static struct lcr_iface corosync_evs_ver0[1] = {
{
.name = "corosync_evs",
.version = 0,
.versions_replace = 0,
.versions_replace_count = 0,
.dependencies = 0,
.dependency_count = 0,
.constructor = NULL,
.destructor = NULL,
.interfaces = NULL,
}
};
static struct lcr_comp evs_comp_ver0 = {
.iface_count = 1,
.ifaces = corosync_evs_ver0
};
static struct corosync_service_engine *evs_get_service_engine_ver0 (void)
{
return (&evs_service_engine);
}
#ifdef COROSYNC_SOLARIS
void corosync_lcr_component_register (void);
void corosync_lcr_component_register (void) {
#else
__attribute__ ((constructor)) static void corosync_lcr_component_register (void) {
#endif
lcr_interfaces_set (&corosync_evs_ver0[0], &evs_service_engine_iface);
lcr_component_register (&evs_comp_ver0);
}
static int evs_exec_init_fn (
struct corosync_api_v1 *corosync_api)
{
+#ifdef COROSYNC_SOLARIS
+ logsys_subsys_init();
+#endif
+
api = corosync_api;
return 0;
}
struct res_evs_confchg_callback res_evs_confchg_callback;
static void evs_confchg_fn (
enum totem_configuration_type configuration_type,
const unsigned int *member_list, size_t member_list_entries,
const unsigned int *left_list, size_t left_list_entries,
const unsigned int *joined_list, size_t joined_list_entries,
const struct memb_ring_id *ring_id)
{
struct list_head *list;
struct evs_pd *evs_pd;
/*
* Build configuration change message
*/
res_evs_confchg_callback.header.size = sizeof (struct res_evs_confchg_callback);
res_evs_confchg_callback.header.id = MESSAGE_RES_EVS_CONFCHG_CALLBACK;
res_evs_confchg_callback.header.error = CS_OK;
memcpy (res_evs_confchg_callback.member_list,
member_list, member_list_entries * sizeof(*member_list));
res_evs_confchg_callback.member_list_entries = member_list_entries;
memcpy (res_evs_confchg_callback.left_list,
left_list, left_list_entries * sizeof(*left_list));
res_evs_confchg_callback.left_list_entries = left_list_entries;
memcpy (res_evs_confchg_callback.joined_list,
joined_list, joined_list_entries * sizeof(*joined_list));
res_evs_confchg_callback.joined_list_entries = joined_list_entries;
/*
* Send configuration change message to every EVS library user
*/
for (list = confchg_notify.next; list != &confchg_notify; list = list->next) {
evs_pd = list_entry (list, struct evs_pd, list);
api->ipc_response_send (evs_pd->conn,
&res_evs_confchg_callback,
sizeof (res_evs_confchg_callback));
}
}
static int evs_lib_init_fn (void *conn)
{
struct evs_pd *evs_pd = (struct evs_pd *)api->ipc_private_data_get (conn);
log_printf (LOGSYS_LEVEL_DEBUG, "Got request to initalize evs service.\n");
evs_pd->groups = NULL;
evs_pd->group_entries = 0;
evs_pd->conn = conn;
list_init (&evs_pd->list);
list_add (&evs_pd->list, &confchg_notify);
api->ipc_dispatch_send (conn, &res_evs_confchg_callback,
sizeof (res_evs_confchg_callback));
return (0);
}
static int evs_lib_exit_fn (void *conn)
{
struct evs_pd *evs_pd = (struct evs_pd *)api->ipc_private_data_get (conn);
list_del (&evs_pd->list);
return (0);
}
static void message_handler_req_evs_join (void *conn, const void *msg)
{
cs_error_t error = CS_OK;
const struct req_lib_evs_join *req_lib_evs_join = msg;
struct res_lib_evs_join res_lib_evs_join;
void *addr;
struct evs_pd *evs_pd = (struct evs_pd *)api->ipc_private_data_get (conn);
if (req_lib_evs_join->group_entries > 50) {
error = CS_ERR_TOO_MANY_GROUPS;
goto exit_error;
}
addr = realloc (evs_pd->groups, sizeof (struct evs_group) *
(evs_pd->group_entries + req_lib_evs_join->group_entries));
if (addr == NULL) {
error = CS_ERR_NO_MEMORY;
goto exit_error;
}
evs_pd->groups = addr;
memcpy (&evs_pd->groups[evs_pd->group_entries],
req_lib_evs_join->groups,
sizeof (struct evs_group) * req_lib_evs_join->group_entries);
evs_pd->group_entries += req_lib_evs_join->group_entries;
exit_error:
res_lib_evs_join.header.size = sizeof (struct res_lib_evs_join);
res_lib_evs_join.header.id = MESSAGE_RES_EVS_JOIN;
res_lib_evs_join.header.error = error;
api->ipc_response_send (conn, &res_lib_evs_join,
sizeof (struct res_lib_evs_join));
}
static void message_handler_req_evs_leave (void *conn, const void *msg)
{
const struct req_lib_evs_leave *req_lib_evs_leave = msg;
struct res_lib_evs_leave res_lib_evs_leave;
cs_error_t error = CS_OK;
int error_index;
int i, j;
int found;
struct evs_pd *evs_pd = (struct evs_pd *)api->ipc_private_data_get (conn);
for (i = 0; i < req_lib_evs_leave->group_entries; i++) {
found = 0;
for (j = 0; j < evs_pd->group_entries;) {
if (memcmp (&req_lib_evs_leave->groups[i],
&evs_pd->groups[j], sizeof (struct evs_group)) == 0) {
/*
* Delete entry
*/
memmove (&evs_pd->groups[j], &evs_pd->groups[j + 1],
(evs_pd->group_entries - j - 1) * sizeof (struct evs_group));
evs_pd->group_entries -= 1;
found = 1;
break;
} else {
j++;
}
}
if (found == 0) {
error = CS_ERR_NOT_EXIST;
error_index = i;
break;
}
}
res_lib_evs_leave.header.size = sizeof (struct res_lib_evs_leave);
res_lib_evs_leave.header.id = MESSAGE_RES_EVS_LEAVE;
res_lib_evs_leave.header.error = error;
api->ipc_response_send (conn, &res_lib_evs_leave,
sizeof (struct res_lib_evs_leave));
}
static void message_handler_req_evs_mcast_joined (void *conn, const void *msg)
{
cs_error_t error = CS_ERR_TRY_AGAIN;
const struct req_lib_evs_mcast_joined *req_lib_evs_mcast_joined = msg;
struct res_lib_evs_mcast_joined res_lib_evs_mcast_joined;
struct iovec req_exec_evs_mcast_iovec[3];
struct req_exec_evs_mcast req_exec_evs_mcast;
int res;
struct evs_pd *evs_pd = (struct evs_pd *)api->ipc_private_data_get (conn);
req_exec_evs_mcast.header.size = sizeof (struct req_exec_evs_mcast) +
evs_pd->group_entries * sizeof (struct evs_group) +
req_lib_evs_mcast_joined->msg_len;
req_exec_evs_mcast.header.id =
SERVICE_ID_MAKE (EVS_SERVICE, MESSAGE_REQ_EXEC_EVS_MCAST);
req_exec_evs_mcast.msg_len = req_lib_evs_mcast_joined->msg_len;
req_exec_evs_mcast.group_entries = evs_pd->group_entries;
req_exec_evs_mcast_iovec[0].iov_base = (char *)&req_exec_evs_mcast;
req_exec_evs_mcast_iovec[0].iov_len = sizeof (req_exec_evs_mcast);
req_exec_evs_mcast_iovec[1].iov_base = (char *)evs_pd->groups;
req_exec_evs_mcast_iovec[1].iov_len = evs_pd->group_entries * sizeof (struct evs_group);
req_exec_evs_mcast_iovec[2].iov_base = (char *)&req_lib_evs_mcast_joined->msg;
req_exec_evs_mcast_iovec[2].iov_len = req_lib_evs_mcast_joined->msg_len;
res = api->totem_mcast (req_exec_evs_mcast_iovec, 3, TOTEM_AGREED);
// TODO
if (res == 0) {
error = CS_OK;
}
res_lib_evs_mcast_joined.header.size = sizeof (struct res_lib_evs_mcast_joined);
res_lib_evs_mcast_joined.header.id = MESSAGE_RES_EVS_MCAST_JOINED;
res_lib_evs_mcast_joined.header.error = error;
api->ipc_response_send (conn, &res_lib_evs_mcast_joined,
sizeof (struct res_lib_evs_mcast_joined));
}
static void message_handler_req_evs_mcast_groups (void *conn, const void *msg)
{
cs_error_t error = CS_ERR_TRY_AGAIN;
const struct req_lib_evs_mcast_groups *req_lib_evs_mcast_groups = msg;
struct res_lib_evs_mcast_groups res_lib_evs_mcast_groups;
struct iovec req_exec_evs_mcast_iovec[3];
struct req_exec_evs_mcast req_exec_evs_mcast;
const char *msg_addr;
int res;
req_exec_evs_mcast.header.size = sizeof (struct req_exec_evs_mcast) +
sizeof (struct evs_group) * req_lib_evs_mcast_groups->group_entries +
req_lib_evs_mcast_groups->msg_len;
req_exec_evs_mcast.header.id =
SERVICE_ID_MAKE (EVS_SERVICE, MESSAGE_REQ_EXEC_EVS_MCAST);
req_exec_evs_mcast.msg_len = req_lib_evs_mcast_groups->msg_len;
req_exec_evs_mcast.group_entries = req_lib_evs_mcast_groups->group_entries;
msg_addr = (const char *)req_lib_evs_mcast_groups +
sizeof (struct req_lib_evs_mcast_groups) +
(sizeof (struct evs_group) * req_lib_evs_mcast_groups->group_entries);
req_exec_evs_mcast_iovec[0].iov_base = (char *)&req_exec_evs_mcast;
req_exec_evs_mcast_iovec[0].iov_len = sizeof (req_exec_evs_mcast);
req_exec_evs_mcast_iovec[1].iov_base = (char *)&req_lib_evs_mcast_groups->groups;
req_exec_evs_mcast_iovec[1].iov_len = sizeof (struct evs_group) * req_lib_evs_mcast_groups->group_entries;
req_exec_evs_mcast_iovec[2].iov_base = (void *) msg_addr; /* discard const */
req_exec_evs_mcast_iovec[2].iov_len = req_lib_evs_mcast_groups->msg_len;
res = api->totem_mcast (req_exec_evs_mcast_iovec, 3, TOTEM_AGREED);
if (res == 0) {
error = CS_OK;
}
res_lib_evs_mcast_groups.header.size = sizeof (struct res_lib_evs_mcast_groups);
res_lib_evs_mcast_groups.header.id = MESSAGE_RES_EVS_MCAST_GROUPS;
res_lib_evs_mcast_groups.header.error = error;
api->ipc_response_send (conn, &res_lib_evs_mcast_groups,
sizeof (struct res_lib_evs_mcast_groups));
}
static void message_handler_req_evs_membership_get (void *conn, const void *msg)
{
struct res_lib_evs_membership_get res_lib_evs_membership_get;
res_lib_evs_membership_get.header.size = sizeof (struct res_lib_evs_membership_get);
res_lib_evs_membership_get.header.id = MESSAGE_RES_EVS_MEMBERSHIP_GET;
res_lib_evs_membership_get.header.error = CS_OK;
res_lib_evs_membership_get.local_nodeid = api->totem_nodeid_get ();
memcpy (&res_lib_evs_membership_get.member_list,
&res_evs_confchg_callback.member_list,
sizeof (res_lib_evs_membership_get.member_list));
res_lib_evs_membership_get.member_list_entries =
res_evs_confchg_callback.member_list_entries;
api->ipc_response_send (conn, &res_lib_evs_membership_get,
sizeof (struct res_lib_evs_membership_get));
}
static void req_exec_mcast_endian_convert (void *msg)
{
struct req_exec_evs_mcast *req_exec_evs_mcast =
(struct req_exec_evs_mcast *)msg;
req_exec_evs_mcast->group_entries =
swab32 (req_exec_evs_mcast->group_entries);
req_exec_evs_mcast->msg_len = swab32 (req_exec_evs_mcast->msg_len);
}
static void message_handler_req_exec_mcast (
const void *msg,
unsigned int nodeid)
{
const struct req_exec_evs_mcast *req_exec_evs_mcast = msg;
struct res_evs_deliver_callback res_evs_deliver_callback;
const char *msg_addr;
struct list_head *list;
int found = 0;
int i, j;
struct evs_pd *evs_pd;
struct iovec iov[2];
res_evs_deliver_callback.header.size = sizeof (struct res_evs_deliver_callback) +
req_exec_evs_mcast->msg_len;
res_evs_deliver_callback.header.id = MESSAGE_RES_EVS_DELIVER_CALLBACK;
res_evs_deliver_callback.header.error = CS_OK;
res_evs_deliver_callback.msglen = req_exec_evs_mcast->msg_len;
msg_addr = (const char *)req_exec_evs_mcast + sizeof (struct req_exec_evs_mcast) +
(sizeof (struct evs_group) * req_exec_evs_mcast->group_entries);
for (list = confchg_notify.next; list != &confchg_notify; list = list->next) {
found = 0;
evs_pd = list_entry (list, struct evs_pd, list);
for (i = 0; i < evs_pd->group_entries; i++) {
for (j = 0; j < req_exec_evs_mcast->group_entries; j++) {
if (memcmp (&evs_pd->groups[i], &req_exec_evs_mcast->groups[j],
sizeof (struct evs_group)) == 0) {
found = 1;
break;
}
}
if (found) {
break;
}
}
if (found) {
res_evs_deliver_callback.local_nodeid = nodeid;
iov[0].iov_base = (void *)&res_evs_deliver_callback;
iov[0].iov_len = sizeof (struct res_evs_deliver_callback);
iov[1].iov_base = (void *) msg_addr; /* discard const */
iov[1].iov_len = req_exec_evs_mcast->msg_len;
api->ipc_dispatch_iov_send (
evs_pd->conn,
iov,
2);
}
}
}
diff --git a/services/pload.c b/services/pload.c
index d18b5204..43d65ca8 100644
--- a/services/pload.c
+++ b/services/pload.c
@@ -1,371 +1,374 @@
/*
* Copyright (c) 2008-2009 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Steven Dake (sdake@redhat.com)
*
* This software licensed under BSD license, the text of which follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the MontaVista Software, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <sys/uio.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <time.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include <corosync/swab.h>
#include <corosync/corotypes.h>
#include <corosync/coroipc_types.h>
#include <corosync/corodefs.h>
#include <corosync/lcr/lcr_comp.h>
#include <corosync/mar_gen.h>
#include <corosync/engine/coroapi.h>
#include <corosync/ipc_pload.h>
#include <corosync/list.h>
#include <corosync/engine/logsys.h>
LOGSYS_DECLARE_SUBSYS ("PLOAD");
enum pload_exec_message_req_types {
MESSAGE_REQ_EXEC_PLOAD_START = 0,
MESSAGE_REQ_EXEC_PLOAD_MCAST = 1
};
/*
* Service Interfaces required by service_message_handler struct
*/
static int pload_exec_init_fn (
struct corosync_api_v1 *corosync_api);
static void pload_confchg_fn (
enum totem_configuration_type configuration_type,
const unsigned int *member_list, size_t member_list_entries,
const unsigned int *left_list, size_t left_list_entries,
const unsigned int *joined_list, size_t joined_list_entries,
const struct memb_ring_id *ring_id);
static void message_handler_req_exec_pload_start (const void *msg,
unsigned int nodeid);
static void message_handler_req_exec_pload_mcast (const void *msg,
unsigned int nodeid);
static void req_exec_pload_start_endian_convert (void *msg);
static void req_exec_pload_mcast_endian_convert (void *msg);
static void message_handler_req_pload_start (void *conn, const void *msg);
static int pload_lib_init_fn (void *conn);
static int pload_lib_exit_fn (void *conn);
static char buffer[1000000];
static unsigned int msgs_delivered = 0;
static unsigned int msgs_wanted = 0;
static unsigned int msg_size = 0;
static unsigned int msg_code = 1;
static unsigned int msgs_sent = 0;
static struct corosync_api_v1 *api;
struct req_exec_pload_start {
coroipc_request_header_t header;
unsigned int msg_code;
unsigned int msg_count;
unsigned int msg_size;
unsigned int time_interval;
};
struct req_exec_pload_mcast {
coroipc_request_header_t header;
unsigned int msg_code;
};
static struct corosync_lib_handler pload_lib_engine[] =
{
{ /* 0 */
.lib_handler_fn = message_handler_req_pload_start,
.flow_control = CS_LIB_FLOW_CONTROL_NOT_REQUIRED
}
};
static struct corosync_exec_handler pload_exec_engine[] =
{
{
.exec_handler_fn = message_handler_req_exec_pload_start,
.exec_endian_convert_fn = req_exec_pload_start_endian_convert
},
{
.exec_handler_fn = message_handler_req_exec_pload_mcast,
.exec_endian_convert_fn = req_exec_pload_mcast_endian_convert
}
};
struct corosync_service_engine pload_service_engine = {
.name = "corosync profile loading service",
.id = PLOAD_SERVICE,
.priority = 1,
.private_data_size = 0,
.flow_control = CS_LIB_FLOW_CONTROL_REQUIRED,
.lib_init_fn = pload_lib_init_fn,
.lib_exit_fn = pload_lib_exit_fn,
.lib_engine = pload_lib_engine,
.lib_engine_count = sizeof (pload_lib_engine) / sizeof (struct corosync_lib_handler),
.exec_engine = pload_exec_engine,
.exec_engine_count = sizeof (pload_exec_engine) / sizeof (struct corosync_exec_handler),
.confchg_fn = pload_confchg_fn,
.exec_init_fn = pload_exec_init_fn,
.exec_dump_fn = NULL
};
static DECLARE_LIST_INIT (confchg_notify);
/*
* Dynamic loading descriptor
*/
static struct corosync_service_engine *pload_get_service_engine_ver0 (void);
static struct corosync_service_engine_iface_ver0 pload_service_engine_iface = {
.corosync_get_service_engine_ver0 = pload_get_service_engine_ver0
};
static struct lcr_iface corosync_pload_ver0[1] = {
{
.name = "corosync_pload",
.version = 0,
.versions_replace = 0,
.versions_replace_count = 0,
.dependencies = 0,
.dependency_count = 0,
.constructor = NULL,
.destructor = NULL,
.interfaces = NULL,
}
};
static struct lcr_comp pload_comp_ver0 = {
.iface_count = 1,
.ifaces = corosync_pload_ver0
};
static struct corosync_service_engine *pload_get_service_engine_ver0 (void)
{
return (&pload_service_engine);
}
#ifdef COROSYNC_SOLARIS
void corosync_lcr_component_register (void);
void corosync_lcr_component_register (void) {
#else
__attribute__ ((constructor)) static void corosync_lcr_component_register (void) {
#endif
lcr_interfaces_set (&corosync_pload_ver0[0], &pload_service_engine_iface);
lcr_component_register (&pload_comp_ver0);
}
static int pload_exec_init_fn (
struct corosync_api_v1 *corosync_api)
{
+#ifdef COROSYNC_SOLARIS
+ logsys_subsys_init();
+#endif
api = corosync_api;
return 0;
}
static void pload_confchg_fn (
enum totem_configuration_type configuration_type,
const unsigned int *member_list, size_t member_list_entries,
const unsigned int *left_list, size_t left_list_entries,
const unsigned int *joined_list, size_t joined_list_entries,
const struct memb_ring_id *ring_id)
{
}
static int pload_lib_init_fn (void *conn)
{
return (0);
}
static int pload_lib_exit_fn (void *conn)
{
return (0);
}
static void message_handler_req_pload_start (void *conn, const void *msg)
{
const struct req_lib_pload_start *req_lib_pload_start = msg;
struct req_exec_pload_start req_exec_pload_start;
struct iovec iov;
req_exec_pload_start.header.id =
SERVICE_ID_MAKE (PLOAD_SERVICE, MESSAGE_REQ_EXEC_PLOAD_START);
req_exec_pload_start.msg_code = req_lib_pload_start->msg_code;
req_exec_pload_start.msg_size = req_lib_pload_start->msg_size;
req_exec_pload_start.msg_count = req_lib_pload_start->msg_count;
req_exec_pload_start.time_interval = req_lib_pload_start->time_interval;
iov.iov_base = (void *)&req_exec_pload_start;
iov.iov_len = sizeof (struct req_exec_pload_start);
msgs_delivered = 0;
msgs_wanted = 0;
msgs_sent = 0;
api->totem_mcast (&iov, 1, TOTEM_AGREED);
}
static void req_exec_pload_start_endian_convert (void *msg)
{
}
static void req_exec_pload_mcast_endian_convert (void *msg)
{
}
static int send_message (const void *arg)
{
struct req_exec_pload_mcast req_exec_pload_mcast;
struct iovec iov[2];
unsigned int res;
unsigned int iov_len = 1;
req_exec_pload_mcast.header.id =
SERVICE_ID_MAKE (PLOAD_SERVICE, MESSAGE_REQ_EXEC_PLOAD_MCAST);
req_exec_pload_mcast.header.size = sizeof (struct req_exec_pload_mcast) + msg_size;
iov[0].iov_base = (void *)&req_exec_pload_mcast;
iov[0].iov_len = sizeof (struct req_exec_pload_mcast);
if (msg_size > sizeof (req_exec_pload_mcast)) {
iov[1].iov_base = buffer;
iov[1].iov_len = msg_size - sizeof (req_exec_pload_mcast);
iov_len = 2;
}
do {
res = api->totem_mcast (iov, iov_len, TOTEM_AGREED);
if (res == -1) {
break;
} else {
msgs_sent++;
msg_code++;
}
} while (msgs_sent < msgs_wanted);
if (msgs_sent == msgs_wanted) {
return (0);
} else {
return (-1);
}
}
hdb_handle_t start_mcasting_handle;
static void start_mcasting (void)
{
api->schedwrk_create (
&start_mcasting_handle,
send_message,
&start_mcasting_handle);
}
static void message_handler_req_exec_pload_start (
const void *msg,
unsigned int nodeid)
{
const struct req_exec_pload_start *req_exec_pload_start = msg;
msgs_wanted = req_exec_pload_start->msg_count;
msg_size = req_exec_pload_start->msg_size;
msg_code = req_exec_pload_start->msg_code;
start_mcasting ();
}
#ifndef timersub
# define timersub(a, b, result) \
do { \
(result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
(result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
if ((result)->tv_usec < 0) { \
--(result)->tv_sec; \
(result)->tv_usec += 1000000; \
} \
} while (0)
#endif
struct timeval tv1;
struct timeval tv2;
struct timeval tv_elapsed;
int last_msg_no = 0;
static void message_handler_req_exec_pload_mcast (
const void *msg,
unsigned int nodeid)
{
const struct req_exec_pload_mcast *pload_mcast = msg;
last_msg_no = pload_mcast->msg_code;
if (msgs_delivered == 0) {
gettimeofday (&tv1, NULL);
}
msgs_delivered += 1;
if (msgs_delivered == msgs_wanted) {
gettimeofday (&tv2, NULL);
timersub (&tv2, &tv1, &tv_elapsed);
printf ("%5d Writes ", msgs_delivered);
printf ("%5d bytes per write ", msg_size);
printf ("%7.3f Seconds runtime ",
(tv_elapsed.tv_sec + (tv_elapsed.tv_usec / 1000000.0)));
printf ("%9.3f TP/s ",
((float)msgs_delivered) / (tv_elapsed.tv_sec + (tv_elapsed.tv_usec / 1000000.0)));
printf ("%7.3f MB/s.\n",
((float)msgs_delivered) * ((float)msg_size) / ((tv_elapsed.tv_sec + (tv_elapsed.tv_usec / 1000000.0)) * 1000000.0));
}
}
diff --git a/services/testquorum.c b/services/testquorum.c
index 9db90d59..745d550d 100644
--- a/services/testquorum.c
+++ b/services/testquorum.c
@@ -1,163 +1,164 @@
/*
* Copyright (c) 2008, 2009 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Christine Caulfield (ccaulfie@redhat.com)
*
* This software licensed under BSD license, the text of which follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of Red Hat, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#include <pwd.h>
#include <grp.h>
#include <sys/types.h>
#include <sys/poll.h>
#include <sys/uio.h>
#include <sys/mman.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <sched.h>
#include <time.h>
#include <corosync/corotypes.h>
#include <corosync/coroipc_types.h>
#include <corosync/corodefs.h>
#include <corosync/engine/logsys.h>
#include <corosync/mar_gen.h>
#include <corosync/lcr/lcr_comp.h>
#include <corosync/engine/coroapi.h>
#include <corosync/engine/quorum.h>
LOGSYS_DECLARE_SUBSYS ("TEST");
static void test_init(struct corosync_api_v1 *api, quorum_set_quorate_fn_t report);
/*
* lcrso object definition
*/
static struct quorum_services_api_ver1 test_quorum_iface_ver0 = {
.init = test_init
};
static struct lcr_iface corosync_test_quorum_ver0[1] = {
{
.name = "testquorum",
.version = 0,
.versions_replace = 0,
.versions_replace_count = 0,
.dependencies = 0,
.dependency_count = 0,
.constructor = NULL,
.destructor = NULL,
.interfaces = (void **)(void *)&test_quorum_iface_ver0,
},
};
static struct lcr_comp test_quorum_comp_ver0 = {
.iface_count = 1,
.ifaces = corosync_test_quorum_ver0
};
#ifdef COROSYNC_SOLARIS
void corosync_lcr_component_register (void);
void corosync_lcr_component_register (void) {
+ logsys_subsys_init();
#else
__attribute__ ((constructor)) static void corosync_lcr_component_register (void) {
#endif
lcr_interfaces_set (&corosync_test_quorum_ver0[0], &test_quorum_iface_ver0);
lcr_component_register (&test_quorum_comp_ver0);
}
/* -------------------------------------------------- */
static quorum_set_quorate_fn_t set_quorum;
static void key_change_notify(object_change_type_t change_type,
hdb_handle_t parent_object_handle,
hdb_handle_t object_handle,
const void *object_name_pt, size_t object_name_len,
const void *key_name_pt, size_t key_len,
const void *key_value_pt, size_t key_value_len,
void *priv_data_pt)
{
unsigned int members[1];
struct memb_ring_id ring_id;
memset(&ring_id, 0, sizeof(ring_id));
/* If the 'quorum.quorate' key changes, then that changes quorum */
if (strncmp(key_name_pt, "quorate", key_len) == 0) {
set_quorum(members, 0, atoi(key_value_pt), &ring_id);
}
}
static void quorum_callback(int quorate, void *context)
{
log_printf(LOGSYS_LEVEL_DEBUG, "quorum callback: quorate = %d\n", quorate);
}
static void test_init(struct corosync_api_v1 *api,
quorum_set_quorate_fn_t report)
{
hdb_handle_t find_handle;
hdb_handle_t quorum_handle = 0;
set_quorum = report;
/*
* Register for objdb changes on quorum { }
*/
api->object_find_create(OBJECT_PARENT_HANDLE, "quorum", strlen("quorum"), &find_handle);
api->object_find_next(find_handle, &quorum_handle);
api->object_find_destroy(find_handle);
api->object_track_start(quorum_handle,
1,
key_change_notify,
NULL, // object_create_notify
NULL, // object_destroy_notify
NULL, // object_reload_notify
NULL); // priv_data
/* Register for quorum changes too! */
api->quorum_register_callback(quorum_callback, NULL);
}
diff --git a/services/votequorum.c b/services/votequorum.c
index 32ee45ec..14197ad3 100644
--- a/services/votequorum.c
+++ b/services/votequorum.c
@@ -1,1662 +1,1665 @@
/*
* Copyright (c) 2009 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Christine Caulfield (ccaulfie@redhat.com)
*
* This software licensed under BSD license, the text of which follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the MontaVista Software, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#include <sys/types.h>
#ifndef COROSYNC_BSD
#include <alloca.h>
#endif
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <sys/uio.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <time.h>
#include <unistd.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <corosync/corotypes.h>
#include <corosync/coroipc_types.h>
#include <corosync/corodefs.h>
#include <corosync/cfg.h>
#include <corosync/list.h>
#include <corosync/lcr/lcr_comp.h>
#include <corosync/engine/logsys.h>
#include <corosync/mar_gen.h>
#include <corosync/engine/coroapi.h>
#include <corosync/engine/quorum.h>
#include <corosync/ipc_votequorum.h>
#include <corosync/list.h>
#define VOTEQUORUM_MAJOR_VERSION 7
#define VOTEQUORUM_MINOR_VERSION 0
#define VOTEQUORUM_PATCH_VERSION 0
/* Silly default to prevent accidents! */
#define DEFAULT_EXPECTED 1024
#define DEFAULT_QDEV_POLL 10000
#define DEFAULT_LEAVE_TMO 10000
LOGSYS_DECLARE_SUBSYS ("VOTEQ");
enum quorum_message_req_types {
MESSAGE_REQ_EXEC_VOTEQUORUM_NODEINFO = 0,
MESSAGE_REQ_EXEC_VOTEQUORUM_RECONFIGURE = 1,
MESSAGE_REQ_EXEC_VOTEQUORUM_KILLNODE = 2,
};
#define NODE_FLAGS_BEENDOWN 1
#define NODE_FLAGS_SEESDISALLOWED 8
#define NODE_FLAGS_HASSTATE 16
#define NODE_FLAGS_QDISK 32
#define NODE_FLAGS_REMOVED 64
#define NODE_FLAGS_US 128
#define NODEID_US 0
#define NODEID_QDEVICE -1
typedef enum { NODESTATE_JOINING=1, NODESTATE_MEMBER,
NODESTATE_DEAD, NODESTATE_LEAVING, NODESTATE_DISALLOWED } nodestate_t;
struct cluster_node {
int flags;
int node_id;
unsigned int expected_votes;
unsigned int votes;
time_t join_time;
nodestate_t state;
struct timeval last_hello; /* Only used for quorum devices */
struct list_head list;
};
static int quorum_flags;
#define VOTEQUORUM_FLAG_FEATURE_DISALLOWED 1
#define VOTEQUORUM_FLAG_FEATURE_TWONODE 1
static int quorum;
static int cluster_is_quorate;
static int first_trans = 1;
static unsigned int quorumdev_poll = DEFAULT_QDEV_POLL;
static unsigned int leaving_timeout = DEFAULT_LEAVE_TMO;
static struct cluster_node *us;
static struct cluster_node *quorum_device = NULL;
static char quorum_device_name[VOTEQUORUM_MAX_QDISK_NAME_LEN];
static corosync_timer_handle_t quorum_device_timer;
static corosync_timer_handle_t leaving_timer;
static struct list_head cluster_members_list;
static struct corosync_api_v1 *corosync_api;
static struct list_head trackers_list;
static unsigned int quorum_members[PROCESSOR_COUNT_MAX+1];
static int quorum_members_entries = 0;
static struct memb_ring_id quorum_ringid;
#define max(a,b) (((a) > (b)) ? (a) : (b))
static struct cluster_node *find_node_by_nodeid(int nodeid);
static struct cluster_node *allocate_node(int nodeid);
static const char *kill_reason(int reason);
#define list_iterate(v, head) \
for (v = (head)->next; v != head; v = v->next)
struct quorum_pd {
unsigned char track_flags;
int tracking_enabled;
uint64_t tracking_context;
struct list_head list;
void *conn;
};
/*
* Service Interfaces required by service_message_handler struct
*/
static void votequorum_init(struct corosync_api_v1 *api,
quorum_set_quorate_fn_t report);
static void quorum_confchg_fn (
enum totem_configuration_type configuration_type,
const unsigned int *member_list, size_t member_list_entries,
const unsigned int *left_list, size_t left_list_entries,
const unsigned int *joined_list, size_t joined_list_entries,
const struct memb_ring_id *ring_id);
static int votequorum_exec_init_fn (struct corosync_api_v1 *api);
static int quorum_lib_init_fn (void *conn);
static int quorum_lib_exit_fn (void *conn);
static void message_handler_req_exec_votequorum_nodeinfo (
const void *message,
unsigned int nodeid);
static void message_handler_req_exec_votequorum_reconfigure (
const void *message,
unsigned int nodeid);
static void message_handler_req_exec_votequorum_killnode (
const void *message,
unsigned int nodeid);
static void message_handler_req_lib_votequorum_getinfo (void *conn,
const void *message);
static void message_handler_req_lib_votequorum_setexpected (void *conn,
const void *message);
static void message_handler_req_lib_votequorum_setvotes (void *conn,
const void *message);
static void message_handler_req_lib_votequorum_qdisk_register (void *conn,
const void *message);
static void message_handler_req_lib_votequorum_qdisk_unregister (void *conn,
const void *message);
static void message_handler_req_lib_votequorum_qdisk_poll (void *conn,
const void *message);
static void message_handler_req_lib_votequorum_qdisk_getinfo (void *conn,
const void *message);
static void message_handler_req_lib_votequorum_setstate (void *conn,
const void *message);
static void message_handler_req_lib_votequorum_leaving (void *conn,
const void *message);
static void message_handler_req_lib_votequorum_trackstart (void *conn,
const void *msg);
static void message_handler_req_lib_votequorum_trackstop (void *conn,
const void *msg);
static int quorum_exec_send_nodeinfo(void);
static int quorum_exec_send_reconfigure(int param, int nodeid, int value);
static int quorum_exec_send_killnode(int nodeid, unsigned int reason);
static void exec_votequorum_nodeinfo_endian_convert (void *msg);
static void exec_votequorum_reconfigure_endian_convert (void *msg);
static void exec_votequorum_killnode_endian_convert (void *msg);
static void add_votequorum_config_notification(hdb_handle_t quorum_object_handle);
static void recalculate_quorum(int allow_decrease, int by_current_nodes);
/*
* Library Handler Definition
*/
static struct corosync_lib_handler quorum_lib_service[] =
{
{ /* 0 */
.lib_handler_fn = message_handler_req_lib_votequorum_getinfo,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 1 */
.lib_handler_fn = message_handler_req_lib_votequorum_setexpected,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 2 */
.lib_handler_fn = message_handler_req_lib_votequorum_setvotes,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 3 */
.lib_handler_fn = message_handler_req_lib_votequorum_qdisk_register,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 4 */
.lib_handler_fn = message_handler_req_lib_votequorum_qdisk_unregister,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 5 */
.lib_handler_fn = message_handler_req_lib_votequorum_qdisk_poll,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 6 */
.lib_handler_fn = message_handler_req_lib_votequorum_qdisk_getinfo,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 7 */
.lib_handler_fn = message_handler_req_lib_votequorum_setstate,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 8 */
.lib_handler_fn = message_handler_req_lib_votequorum_leaving,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 9 */
.lib_handler_fn = message_handler_req_lib_votequorum_trackstart,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED
},
{ /* 10 */
.lib_handler_fn = message_handler_req_lib_votequorum_trackstop,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED
}
};
static struct corosync_exec_handler votequorum_exec_engine[] =
{
{ /* 0 */
.exec_handler_fn = message_handler_req_exec_votequorum_nodeinfo,
.exec_endian_convert_fn = exec_votequorum_nodeinfo_endian_convert
},
{ /* 1 */
.exec_handler_fn = message_handler_req_exec_votequorum_reconfigure,
.exec_endian_convert_fn = exec_votequorum_reconfigure_endian_convert
},
{ /* 2 */
.exec_handler_fn = message_handler_req_exec_votequorum_killnode,
.exec_endian_convert_fn = exec_votequorum_killnode_endian_convert
},
};
static quorum_set_quorate_fn_t set_quorum;
/*
* lcrso object definition
*/
static struct quorum_services_api_ver1 votequorum_iface_ver0 = {
.init = votequorum_init
};
static struct corosync_service_engine quorum_service_handler = {
.name = "corosync votes quorum service v0.91",
.id = VOTEQUORUM_SERVICE,
.private_data_size = sizeof (struct quorum_pd),
.allow_inquorate = CS_LIB_ALLOW_INQUORATE,
.flow_control = COROSYNC_LIB_FLOW_CONTROL_REQUIRED,
.lib_init_fn = quorum_lib_init_fn,
.lib_exit_fn = quorum_lib_exit_fn,
.lib_engine = quorum_lib_service,
.lib_engine_count = sizeof (quorum_lib_service) / sizeof (struct corosync_lib_handler),
.exec_init_fn = votequorum_exec_init_fn,
.exec_engine = votequorum_exec_engine,
.exec_engine_count = sizeof (votequorum_exec_engine) / sizeof (struct corosync_exec_handler),
.confchg_fn = quorum_confchg_fn,
};
/*
* Dynamic loader definition
*/
static struct corosync_service_engine *quorum_get_service_handler_ver0 (void);
static struct corosync_service_engine_iface_ver0 quorum_service_handler_iface = {
.corosync_get_service_engine_ver0 = quorum_get_service_handler_ver0
};
static struct lcr_iface corosync_quorum_ver0[2] = {
{
.name = "corosync_votequorum",
.version = 0,
.versions_replace = 0,
.versions_replace_count = 0,
.dependencies = 0,
.dependency_count = 0,
.constructor = NULL,
.destructor = NULL,
.interfaces = (void **)(void *)&votequorum_iface_ver0
},
{
.name = "corosync_votequorum_iface",
.version = 0,
.versions_replace = 0,
.versions_replace_count = 0,
.dependencies = 0,
.dependency_count = 0,
.constructor = NULL,
.destructor = NULL,
.interfaces = NULL
}
};
static struct lcr_comp quorum_comp_ver0 = {
.iface_count = 2,
.ifaces = corosync_quorum_ver0
};
static struct corosync_service_engine *quorum_get_service_handler_ver0 (void)
{
return (&quorum_service_handler);
}
#ifdef COROSYNC_SOLARIS
void corosync_lcr_component_register (void);
void corosync_lcr_component_register (void) {
#else
__attribute__ ((constructor)) static void corosync_lcr_component_register (void) {
#endif
lcr_interfaces_set (&corosync_quorum_ver0[0], &votequorum_iface_ver0);
lcr_interfaces_set (&corosync_quorum_ver0[1], &quorum_service_handler_iface);
lcr_component_register (&quorum_comp_ver0);
}
static void votequorum_init(struct corosync_api_v1 *api,
quorum_set_quorate_fn_t report)
{
ENTER();
set_quorum = report;
/* Load the library-servicing part of this module */
api->service_link_and_init(api, "corosync_votequorum_iface", 0);
LEAVE();
}
struct req_exec_quorum_nodeinfo {
coroipc_request_header_t header __attribute__((aligned(8)));
unsigned int first_trans;
unsigned int votes;
unsigned int expected_votes;
unsigned int major_version; /* Not backwards compatible */
unsigned int minor_version; /* Backwards compatible */
unsigned int patch_version; /* Backwards/forwards compatible */
unsigned int config_version;
unsigned int flags;
} __attribute__((packed));
/* Parameters for RECONFIG command */
#define RECONFIG_PARAM_EXPECTED_VOTES 1
#define RECONFIG_PARAM_NODE_VOTES 2
#define RECONFIG_PARAM_LEAVING 3
struct req_exec_quorum_reconfigure {
coroipc_request_header_t header __attribute__((aligned(8)));
unsigned int param;
unsigned int nodeid;
unsigned int value;
};
struct req_exec_quorum_killnode {
coroipc_request_header_t header __attribute__((aligned(8)));
unsigned int reason;
unsigned int nodeid;
};
/* These just make the access a little neater */
static inline int objdb_get_string(const struct corosync_api_v1 *corosync,
hdb_handle_t object_service_handle,
char *key, char **value)
{
int res;
*value = NULL;
if ( !(res = corosync_api->object_key_get(object_service_handle,
key,
strlen(key),
(void *)value,
NULL))) {
if (*value)
return 0;
}
return -1;
}
static inline void objdb_get_int(const struct corosync_api_v1 *corosync,
hdb_handle_t object_service_handle,
const char *key, unsigned int *intvalue,
unsigned int default_value)
{
char *value = NULL;
*intvalue = default_value;
if (!corosync_api->object_key_get(object_service_handle, key, strlen(key),
(void *)&value, NULL)) {
if (value) {
*intvalue = atoi(value);
}
}
}
static void read_quorum_config(hdb_handle_t quorum_handle)
{
unsigned int value = 0;
int cluster_members = 0;
struct list_head *tmp;
struct cluster_node *node;
log_printf(LOGSYS_LEVEL_INFO, "Reading configuration\n");
objdb_get_int(corosync_api, quorum_handle, "expected_votes", &us->expected_votes, DEFAULT_EXPECTED);
objdb_get_int(corosync_api, quorum_handle, "votes", &us->votes, 1);
objdb_get_int(corosync_api, quorum_handle, "quorumdev_poll", &quorumdev_poll, DEFAULT_QDEV_POLL);
objdb_get_int(corosync_api, quorum_handle, "leaving_timeout", &leaving_timeout, DEFAULT_LEAVE_TMO);
objdb_get_int(corosync_api, quorum_handle, "disallowed", &value, 0);
if (value)
quorum_flags |= VOTEQUORUM_FLAG_FEATURE_DISALLOWED;
else
quorum_flags &= ~VOTEQUORUM_FLAG_FEATURE_DISALLOWED;
objdb_get_int(corosync_api, quorum_handle, "two_node", &value, 0);
if (value)
quorum_flags |= VOTEQUORUM_FLAG_FEATURE_TWONODE;
else
quorum_flags &= ~VOTEQUORUM_FLAG_FEATURE_TWONODE;
/*
* two_node mode is invalid if there are more than 2 nodes in the cluster!
*/
list_iterate(tmp, &cluster_members_list) {
node = list_entry(tmp, struct cluster_node, list);
cluster_members++;
}
if (quorum_flags & VOTEQUORUM_FLAG_FEATURE_TWONODE && cluster_members > 2) {
log_printf(LOGSYS_LEVEL_WARNING, "quorum.two_node was set but there are more than 2 nodes in the cluster. It will be ignored.");
quorum_flags &= ~VOTEQUORUM_FLAG_FEATURE_TWONODE;
}
}
static int votequorum_exec_init_fn (struct corosync_api_v1 *api)
{
hdb_handle_t object_handle;
hdb_handle_t find_handle;
+#ifdef COROSYNC_SOLARIS
+ logsys_subsys_init();
+#endif
ENTER();
corosync_api = api;
list_init(&cluster_members_list);
list_init(&trackers_list);
/* Allocate a cluster_node for us */
us = allocate_node(corosync_api->totem_nodeid_get());
if (!us)
return (1);
us->flags |= NODE_FLAGS_US;
us->state = NODESTATE_MEMBER;
us->expected_votes = DEFAULT_EXPECTED;
us->votes = 1;
time(&us->join_time);
/* Get configuration variables */
corosync_api->object_find_create(OBJECT_PARENT_HANDLE, "quorum", strlen("quorum"), &find_handle);
if (corosync_api->object_find_next(find_handle, &object_handle) == 0) {
read_quorum_config(object_handle);
}
recalculate_quorum(0, 0);
/* Listen for changes */
add_votequorum_config_notification(object_handle);
corosync_api->object_find_destroy(find_handle);
LEAVE();
return (0);
}
static int quorum_lib_exit_fn (void *conn)
{
struct quorum_pd *quorum_pd = (struct quorum_pd *)corosync_api->ipc_private_data_get (conn);
ENTER();
if (quorum_pd->tracking_enabled) {
list_del (&quorum_pd->list);
list_init (&quorum_pd->list);
}
LEAVE();
return (0);
}
static int send_quorum_notification(void *conn, uint64_t context)
{
struct res_lib_votequorum_notification *res_lib_votequorum_notification;
struct list_head *tmp;
struct cluster_node *node;
int cluster_members = 0;
int i = 0;
int size;
char *buf;
ENTER();
list_iterate(tmp, &cluster_members_list) {
node = list_entry(tmp, struct cluster_node, list);
cluster_members++;
}
if (quorum_device)
cluster_members++;
size = sizeof(struct res_lib_votequorum_notification) + sizeof(struct votequorum_node) * cluster_members;
buf = alloca(size);
if (!buf) {
LEAVE();
return -1;
}
res_lib_votequorum_notification = (struct res_lib_votequorum_notification *)buf;
res_lib_votequorum_notification->quorate = cluster_is_quorate;
res_lib_votequorum_notification->node_list_entries = cluster_members;
res_lib_votequorum_notification->context = context;
list_iterate(tmp, &cluster_members_list) {
node = list_entry(tmp, struct cluster_node, list);
res_lib_votequorum_notification->node_list[i].nodeid = node->node_id;
res_lib_votequorum_notification->node_list[i++].state = node->state;
}
if (quorum_device) {
res_lib_votequorum_notification->node_list[i].nodeid = 0;
res_lib_votequorum_notification->node_list[i++].state = quorum_device->state | 0x80;
}
res_lib_votequorum_notification->header.id = MESSAGE_RES_VOTEQUORUM_NOTIFICATION;
res_lib_votequorum_notification->header.size = size;
res_lib_votequorum_notification->header.error = CS_OK;
/* Send it to all interested parties */
if (conn) {
int ret = corosync_api->ipc_dispatch_send(conn, buf, size);
LEAVE();
return ret;
}
else {
struct quorum_pd *qpd;
list_iterate(tmp, &trackers_list) {
qpd = list_entry(tmp, struct quorum_pd, list);
res_lib_votequorum_notification->context = qpd->tracking_context;
corosync_api->ipc_dispatch_send(qpd->conn, buf, size);
}
}
LEAVE();
return 0;
}
static void send_expectedvotes_notification(void)
{
struct res_lib_votequorum_expectedvotes_notification res_lib_votequorum_expectedvotes_notification;
struct quorum_pd *qpd;
struct list_head *tmp;
log_printf(LOGSYS_LEVEL_DEBUG, "Sending expected votes callback\n");
res_lib_votequorum_expectedvotes_notification.header.id = MESSAGE_RES_VOTEQUORUM_EXPECTEDVOTES_NOTIFICATION;
res_lib_votequorum_expectedvotes_notification.header.size = sizeof(res_lib_votequorum_expectedvotes_notification);
res_lib_votequorum_expectedvotes_notification.header.error = CS_OK;
res_lib_votequorum_expectedvotes_notification.expected_votes = us->expected_votes;
list_iterate(tmp, &trackers_list) {
qpd = list_entry(tmp, struct quorum_pd, list);
res_lib_votequorum_expectedvotes_notification.context = qpd->tracking_context;
corosync_api->ipc_dispatch_send(qpd->conn, &res_lib_votequorum_expectedvotes_notification,
sizeof(struct res_lib_votequorum_expectedvotes_notification));
}
}
static void set_quorate(int total_votes)
{
int quorate;
ENTER();
if (quorum > total_votes) {
quorate = 0;
}
else {
quorate = 1;
}
if (cluster_is_quorate && !quorate)
log_printf(LOGSYS_LEVEL_INFO, "quorum lost, blocking activity\n");
if (!cluster_is_quorate && quorate)
log_printf(LOGSYS_LEVEL_INFO, "quorum regained, resuming activity\n");
/* If we are newly quorate, then kill any DISALLOWED nodes */
if (!cluster_is_quorate && quorate) {
struct cluster_node *node = NULL;
struct list_head *tmp;
list_iterate(tmp, &cluster_members_list) {
node = list_entry(tmp, struct cluster_node, list);
if (node->state == NODESTATE_DISALLOWED)
quorum_exec_send_killnode(node->node_id, VOTEQUORUM_REASON_KILL_REJOIN);
}
}
cluster_is_quorate = quorate;
set_quorum(quorum_members, quorum_members_entries, quorate, &quorum_ringid);
ENTER();
}
static int calculate_quorum(int allow_decrease, int max_expected, unsigned int *ret_total_votes)
{
struct list_head *nodelist;
struct cluster_node *node;
unsigned int total_votes = 0;
unsigned int highest_expected = 0;
unsigned int newquorum, q1, q2;
unsigned int total_nodes = 0;
ENTER();
list_iterate(nodelist, &cluster_members_list) {
node = list_entry(nodelist, struct cluster_node, list);
log_printf(LOGSYS_LEVEL_DEBUG, "node %x state=%d, votes=%d, expected=%d\n",
node->node_id, node->state, node->votes, node->expected_votes);
if (node->state == NODESTATE_MEMBER) {
if (max_expected)
node->expected_votes = max_expected;
else
highest_expected = max(highest_expected, node->expected_votes);
total_votes += node->votes;
total_nodes++;
}
}
if (quorum_device && quorum_device->state == NODESTATE_MEMBER)
total_votes += quorum_device->votes;
if (max_expected > 0)
highest_expected = max_expected;
/* This quorum calculation is taken from the OpenVMS Cluster Systems
* manual, but, then, you guessed that didn't you */
q1 = (highest_expected + 2) / 2;
q2 = (total_votes + 2) / 2;
newquorum = max(q1, q2);
/* Normally quorum never decreases but the system administrator can
* force it down by setting expected votes to a maximum value */
if (!allow_decrease)
newquorum = max(quorum, newquorum);
/* The special two_node mode allows each of the two nodes to retain
* quorum if the other fails. Only one of the two should live past
* fencing (as both nodes try to fence each other in split-brain.)
* Also: if there are more than two nodes, force us inquorate to avoid
* any damage or confusion.
*/
if ((quorum_flags & VOTEQUORUM_FLAG_FEATURE_TWONODE) && total_nodes <= 2)
newquorum = 1;
if (ret_total_votes)
*ret_total_votes = total_votes;
LEAVE();
return newquorum;
}
/* Recalculate cluster quorum, set quorate and notify changes */
static void recalculate_quorum(int allow_decrease, int by_current_nodes)
{
unsigned int total_votes = 0;
int cluster_members = 0;
struct list_head *nodelist;
struct cluster_node *node;
ENTER();
list_iterate(nodelist, &cluster_members_list) {
node = list_entry(nodelist, struct cluster_node, list);
if (node->state == NODESTATE_MEMBER) {
if (by_current_nodes)
cluster_members++;
total_votes += node->votes;
}
}
/* Keep expected_votes at the highest number of votes in the cluster */
log_printf(LOGSYS_LEVEL_DEBUG, "total_votes=%d, expected_votes=%d\n", total_votes, us->expected_votes);
if (total_votes > us->expected_votes) {
us->expected_votes = total_votes;
send_expectedvotes_notification();
}
quorum = calculate_quorum(allow_decrease, cluster_members, &total_votes);
set_quorate(total_votes);
send_quorum_notification(NULL, 0L);
LEAVE();
}
static int have_disallowed(void)
{
struct cluster_node *node;
struct list_head *tmp;
list_iterate(tmp, &cluster_members_list) {
node = list_entry(tmp, struct cluster_node, list);
if (node->state == NODESTATE_DISALLOWED)
return 1;
}
return 0;
}
static void node_add_ordered(struct cluster_node *newnode)
{
struct cluster_node *node = NULL;
struct list_head *tmp;
struct list_head *newlist = &newnode->list;
list_iterate(tmp, &cluster_members_list) {
node = list_entry(tmp, struct cluster_node, list);
if (newnode->node_id < node->node_id)
break;
}
if (!node)
list_add(&newnode->list, &cluster_members_list);
else {
newlist->prev = tmp->prev;
newlist->next = tmp;
tmp->prev->next = newlist;
tmp->prev = newlist;
}
}
static struct cluster_node *allocate_node(int nodeid)
{
struct cluster_node *cl;
cl = malloc(sizeof(struct cluster_node));
if (cl) {
memset(cl, 0, sizeof(struct cluster_node));
cl->node_id = nodeid;
if (nodeid)
node_add_ordered(cl);
}
return cl;
}
static struct cluster_node *find_node_by_nodeid(int nodeid)
{
struct cluster_node *node;
struct list_head *tmp;
if (nodeid == NODEID_US)
return us;
if (nodeid == NODEID_QDEVICE)
return quorum_device;
list_iterate(tmp, &cluster_members_list) {
node = list_entry(tmp, struct cluster_node, list);
if (node->node_id == nodeid)
return node;
}
return NULL;
}
static int quorum_exec_send_nodeinfo()
{
struct req_exec_quorum_nodeinfo req_exec_quorum_nodeinfo;
struct iovec iov[1];
int ret;
ENTER();
req_exec_quorum_nodeinfo.expected_votes = us->expected_votes;
req_exec_quorum_nodeinfo.votes = us->votes;
req_exec_quorum_nodeinfo.major_version = VOTEQUORUM_MAJOR_VERSION;
req_exec_quorum_nodeinfo.minor_version = VOTEQUORUM_MINOR_VERSION;
req_exec_quorum_nodeinfo.patch_version = VOTEQUORUM_PATCH_VERSION;
req_exec_quorum_nodeinfo.flags = us->flags;
req_exec_quorum_nodeinfo.first_trans = first_trans;
if (have_disallowed())
req_exec_quorum_nodeinfo.flags |= NODE_FLAGS_SEESDISALLOWED;
req_exec_quorum_nodeinfo.header.id = SERVICE_ID_MAKE(VOTEQUORUM_SERVICE, MESSAGE_REQ_EXEC_VOTEQUORUM_NODEINFO);
req_exec_quorum_nodeinfo.header.size = sizeof(req_exec_quorum_nodeinfo);
iov[0].iov_base = (void *)&req_exec_quorum_nodeinfo;
iov[0].iov_len = sizeof(req_exec_quorum_nodeinfo);
ret = corosync_api->totem_mcast (iov, 1, TOTEM_AGREED);
LEAVE();
return ret;
}
static int quorum_exec_send_reconfigure(int param, int nodeid, int value)
{
struct req_exec_quorum_reconfigure req_exec_quorum_reconfigure;
struct iovec iov[1];
int ret;
ENTER();
req_exec_quorum_reconfigure.param = param;
req_exec_quorum_reconfigure.nodeid = nodeid;
req_exec_quorum_reconfigure.value = value;
req_exec_quorum_reconfigure.header.id = SERVICE_ID_MAKE(VOTEQUORUM_SERVICE, MESSAGE_REQ_EXEC_VOTEQUORUM_RECONFIGURE);
req_exec_quorum_reconfigure.header.size = sizeof(req_exec_quorum_reconfigure);
iov[0].iov_base = (void *)&req_exec_quorum_reconfigure;
iov[0].iov_len = sizeof(req_exec_quorum_reconfigure);
ret = corosync_api->totem_mcast (iov, 1, TOTEM_AGREED);
LEAVE();
return ret;
}
static int quorum_exec_send_killnode(int nodeid, unsigned int reason)
{
struct req_exec_quorum_killnode req_exec_quorum_killnode;
struct iovec iov[1];
int ret;
ENTER();
req_exec_quorum_killnode.nodeid = nodeid;
req_exec_quorum_killnode.reason = reason;
req_exec_quorum_killnode.header.id = SERVICE_ID_MAKE(VOTEQUORUM_SERVICE, MESSAGE_REQ_EXEC_VOTEQUORUM_KILLNODE);
req_exec_quorum_killnode.header.size = sizeof(req_exec_quorum_killnode);
iov[0].iov_base = (void *)&req_exec_quorum_killnode;
iov[0].iov_len = sizeof(req_exec_quorum_killnode);
ret = corosync_api->totem_mcast (iov, 1, TOTEM_AGREED);
LEAVE();
return ret;
}
static void quorum_confchg_fn (
enum totem_configuration_type configuration_type,
const unsigned int *member_list, size_t member_list_entries,
const unsigned int *left_list, size_t left_list_entries,
const unsigned int *joined_list, size_t joined_list_entries,
const struct memb_ring_id *ring_id)
{
int i;
int leaving = 0;
struct cluster_node *node;
ENTER();
if (member_list_entries > 1)
first_trans = 0;
if (left_list_entries) {
for (i = 0; i< left_list_entries; i++) {
node = find_node_by_nodeid(left_list[i]);
if (node) {
if (node->state == NODESTATE_LEAVING)
leaving = 1;
node->state = NODESTATE_DEAD;
node->flags |= NODE_FLAGS_BEENDOWN;
}
}
recalculate_quorum(leaving, leaving);
}
if (member_list_entries) {
memcpy(quorum_members, member_list, sizeof(unsigned int) * member_list_entries);
quorum_members_entries = member_list_entries;
if (quorum_device) {
quorum_members[quorum_members_entries++] = 0;
}
quorum_exec_send_nodeinfo();
}
memcpy(&quorum_ringid, ring_id, sizeof(*ring_id));
LEAVE();
}
static void exec_votequorum_nodeinfo_endian_convert (void *msg)
{
struct req_exec_quorum_nodeinfo *nodeinfo = msg;
nodeinfo->votes = swab32(nodeinfo->votes);
nodeinfo->expected_votes = swab32(nodeinfo->expected_votes);
nodeinfo->major_version = swab32(nodeinfo->major_version);
nodeinfo->minor_version = swab32(nodeinfo->minor_version);
nodeinfo->patch_version = swab32(nodeinfo->patch_version);
nodeinfo->config_version = swab32(nodeinfo->config_version);
nodeinfo->flags = swab32(nodeinfo->flags);
}
static void exec_votequorum_reconfigure_endian_convert (void *msg)
{
struct req_exec_quorum_reconfigure *reconfigure = msg;
reconfigure->nodeid = swab32(reconfigure->nodeid);
reconfigure->value = swab32(reconfigure->value);
}
static void exec_votequorum_killnode_endian_convert (void *msg)
{
struct req_exec_quorum_killnode *killnode = msg;
killnode->reason = swab16(killnode->reason);
killnode->nodeid = swab32(killnode->nodeid);
}
static void message_handler_req_exec_votequorum_nodeinfo (
const void *message,
unsigned int nodeid)
{
const struct req_exec_quorum_nodeinfo *req_exec_quorum_nodeinfo = message;
struct cluster_node *node;
int old_votes;
int old_expected;
nodestate_t old_state;
int new_node = 0;
ENTER();
log_printf(LOGSYS_LEVEL_DEBUG, "got nodeinfo message from cluster node %d\n", nodeid);
node = find_node_by_nodeid(nodeid);
if (!node) {
node = allocate_node(nodeid);
new_node = 1;
}
if (!node) {
corosync_api->error_memory_failure();
return;
}
/*
* If the node sending the message sees disallowed nodes and we don't, then
* we have to leave
*/
if (req_exec_quorum_nodeinfo->flags & NODE_FLAGS_SEESDISALLOWED && !have_disallowed()) {
/* Must use syslog directly here or the message will never arrive */
syslog(LOGSYS_LEVEL_CRIT, "[VOTEQ]: Joined a cluster with disallowed nodes. must die");
corosync_api->fatal_error(2, __FILE__, __LINE__);
exit(2);
}
old_votes = node->votes;
old_expected = node->expected_votes;
old_state = node->state;
/* Update node state */
node->votes = req_exec_quorum_nodeinfo->votes;
node->expected_votes = req_exec_quorum_nodeinfo->expected_votes;
node->state = NODESTATE_MEMBER;
log_printf(LOGSYS_LEVEL_DEBUG, "nodeinfo message: votes: %d, expected:%d\n", req_exec_quorum_nodeinfo->votes, req_exec_quorum_nodeinfo->expected_votes);
/* Check flags for disallowed (if enabled) */
if (quorum_flags & VOTEQUORUM_FLAG_FEATURE_DISALLOWED) {
if ((req_exec_quorum_nodeinfo->flags & NODE_FLAGS_HASSTATE && node->flags & NODE_FLAGS_BEENDOWN) ||
(req_exec_quorum_nodeinfo->flags & NODE_FLAGS_HASSTATE && req_exec_quorum_nodeinfo->first_trans && !(node->flags & NODE_FLAGS_US) && (us->flags & NODE_FLAGS_HASSTATE))) {
if (node->state != NODESTATE_DISALLOWED) {
if (cluster_is_quorate) {
log_printf(LOGSYS_LEVEL_CRIT, "Killing node %d because it has rejoined the cluster with existing state", node->node_id);
node->state = NODESTATE_DISALLOWED;
quorum_exec_send_killnode(nodeid, VOTEQUORUM_REASON_KILL_REJOIN);
}
else {
log_printf(LOGSYS_LEVEL_CRIT, "Node %d not joined to quorum because it has existing state", node->node_id);
node->state = NODESTATE_DISALLOWED;
}
}
}
}
node->flags &= ~NODE_FLAGS_BEENDOWN;
if (new_node || old_votes != node->votes || old_expected != node->expected_votes || old_state != node->state)
recalculate_quorum(0, 0);
LEAVE();
}
static void message_handler_req_exec_votequorum_killnode (
const void *message,
unsigned int nodeid)
{
const struct req_exec_quorum_killnode *req_exec_quorum_killnode = message;
if (req_exec_quorum_killnode->nodeid == corosync_api->totem_nodeid_get()) {
log_printf(LOGSYS_LEVEL_CRIT, "Killed by node %d: %s\n", nodeid, kill_reason(req_exec_quorum_killnode->reason));
corosync_api->fatal_error(1, __FILE__, __LINE__);
exit(1);
}
}
static void message_handler_req_exec_votequorum_reconfigure (
const void *message,
unsigned int nodeid)
{
const struct req_exec_quorum_reconfigure *req_exec_quorum_reconfigure = message;
struct cluster_node *node;
struct list_head *nodelist;
log_printf(LOGSYS_LEVEL_DEBUG, "got reconfigure message from cluster node %d\n", nodeid);
node = find_node_by_nodeid(req_exec_quorum_reconfigure->nodeid);
if (!node)
return;
switch(req_exec_quorum_reconfigure->param)
{
case RECONFIG_PARAM_EXPECTED_VOTES:
list_iterate(nodelist, &cluster_members_list) {
node = list_entry(nodelist, struct cluster_node, list);
if (node->state == NODESTATE_MEMBER &&
node->expected_votes > req_exec_quorum_reconfigure->value) {
node->expected_votes = req_exec_quorum_reconfigure->value;
}
}
send_expectedvotes_notification();
recalculate_quorum(1, 0); /* Allow decrease */
break;
case RECONFIG_PARAM_NODE_VOTES:
node->votes = req_exec_quorum_reconfigure->value;
recalculate_quorum(1, 0); /* Allow decrease */
break;
case RECONFIG_PARAM_LEAVING:
if (req_exec_quorum_reconfigure->value == 1 && node->state == NODESTATE_MEMBER)
node->state = NODESTATE_LEAVING;
if (req_exec_quorum_reconfigure->value == 0 && node->state == NODESTATE_LEAVING)
node->state = NODESTATE_MEMBER;
break;
}
}
static int quorum_lib_init_fn (void *conn)
{
struct quorum_pd *pd = (struct quorum_pd *)corosync_api->ipc_private_data_get (conn);
ENTER();
list_init (&pd->list);
pd->conn = conn;
LEAVE();
return (0);
}
/*
* Someone called votequorum_leave AGES ago!
* Assume they forgot to shut down the node.
*/
static void leaving_timer_fn(void *arg)
{
ENTER();
if (us->state == NODESTATE_LEAVING)
us->state = NODESTATE_MEMBER;
/* Tell everyone else we made a mistake */
quorum_exec_send_reconfigure(RECONFIG_PARAM_LEAVING, us->node_id, 0);
LEAVE();
}
/* Message from the library */
static void message_handler_req_lib_votequorum_getinfo (void *conn, const void *message)
{
const struct req_lib_votequorum_getinfo *req_lib_votequorum_getinfo = message;
struct res_lib_votequorum_getinfo res_lib_votequorum_getinfo;
struct cluster_node *node;
unsigned int highest_expected = 0;
unsigned int total_votes = 0;
cs_error_t error = CS_OK;
log_printf(LOGSYS_LEVEL_DEBUG, "got getinfo request on %p for node %d\n", conn, req_lib_votequorum_getinfo->nodeid);
node = find_node_by_nodeid(req_lib_votequorum_getinfo->nodeid);
if (node) {
struct cluster_node *iternode;
struct list_head *nodelist;
list_iterate(nodelist, &cluster_members_list) {
iternode = list_entry(nodelist, struct cluster_node, list);
if (iternode->state == NODESTATE_MEMBER) {
highest_expected =
max(highest_expected, iternode->expected_votes);
total_votes += iternode->votes;
}
}
if (quorum_device && quorum_device->state == NODESTATE_MEMBER) {
total_votes += quorum_device->votes;
}
res_lib_votequorum_getinfo.votes = us->votes;
res_lib_votequorum_getinfo.expected_votes = us->expected_votes;
res_lib_votequorum_getinfo.highest_expected = highest_expected;
res_lib_votequorum_getinfo.quorum = quorum;
res_lib_votequorum_getinfo.total_votes = total_votes;
res_lib_votequorum_getinfo.flags = 0;
res_lib_votequorum_getinfo.nodeid = node->node_id;
if (us->flags & NODE_FLAGS_HASSTATE)
res_lib_votequorum_getinfo.flags |= VOTEQUORUM_INFO_FLAG_HASSTATE;
if (quorum_flags & VOTEQUORUM_FLAG_FEATURE_TWONODE)
res_lib_votequorum_getinfo.flags |= VOTEQUORUM_INFO_FLAG_TWONODE;
if (cluster_is_quorate)
res_lib_votequorum_getinfo.flags |= VOTEQUORUM_INFO_FLAG_QUORATE;
if (us->flags & NODE_FLAGS_SEESDISALLOWED)
res_lib_votequorum_getinfo.flags |= VOTEQUORUM_INFO_FLAG_DISALLOWED;
}
else {
error = CS_ERR_NOT_EXIST;
}
res_lib_votequorum_getinfo.header.size = sizeof(res_lib_votequorum_getinfo);
res_lib_votequorum_getinfo.header.id = MESSAGE_RES_VOTEQUORUM_GETINFO;
res_lib_votequorum_getinfo.header.error = error;
corosync_api->ipc_response_send(conn, &res_lib_votequorum_getinfo, sizeof(res_lib_votequorum_getinfo));
log_printf(LOGSYS_LEVEL_DEBUG, "getinfo response error: %d\n", error);
}
/* Message from the library */
static void message_handler_req_lib_votequorum_setexpected (void *conn, const void *message)
{
const struct req_lib_votequorum_setexpected *req_lib_votequorum_setexpected = message;
struct res_lib_votequorum_status res_lib_votequorum_status;
cs_error_t error = CS_OK;
unsigned int newquorum;
unsigned int total_votes;
ENTER();
/*
* If there are disallowed nodes, then we can't allow the user
* to bypass them by fiddling with expected votes.
*/
if (quorum_flags & VOTEQUORUM_FLAG_FEATURE_DISALLOWED && have_disallowed()) {
error = CS_ERR_EXIST;
goto error_exit;
}
/* Validate new expected votes */
newquorum = calculate_quorum(1, req_lib_votequorum_setexpected->expected_votes, &total_votes);
if (newquorum < total_votes / 2
|| newquorum > total_votes) {
error = CS_ERR_INVALID_PARAM;
goto error_exit;
}
quorum_exec_send_reconfigure(RECONFIG_PARAM_EXPECTED_VOTES, us->node_id, req_lib_votequorum_setexpected->expected_votes);
/* send status */
error_exit:
res_lib_votequorum_status.header.size = sizeof(res_lib_votequorum_status);
res_lib_votequorum_status.header.id = MESSAGE_RES_VOTEQUORUM_STATUS;
res_lib_votequorum_status.header.error = error;
corosync_api->ipc_response_send(conn, &res_lib_votequorum_status, sizeof(res_lib_votequorum_status));
LEAVE();
}
/* Message from the library */
static void message_handler_req_lib_votequorum_setvotes (void *conn, const void *message)
{
const struct req_lib_votequorum_setvotes *req_lib_votequorum_setvotes = message;
struct res_lib_votequorum_status res_lib_votequorum_status;
struct cluster_node *node;
unsigned int newquorum;
unsigned int total_votes;
unsigned int saved_votes;
cs_error_t error = CS_OK;
unsigned int nodeid;
ENTER();
nodeid = req_lib_votequorum_setvotes->nodeid;
node = find_node_by_nodeid(nodeid);
if (!node) {
error = CS_ERR_NAME_NOT_FOUND;
goto error_exit;
}
/* Check votes is valid */
saved_votes = node->votes;
node->votes = req_lib_votequorum_setvotes->votes;
newquorum = calculate_quorum(1, 0, &total_votes);
if (newquorum < total_votes / 2 || newquorum > total_votes) {
node->votes = saved_votes;
error = CS_ERR_INVALID_PARAM;
goto error_exit;
}
if (!nodeid)
nodeid = corosync_api->totem_nodeid_get();
quorum_exec_send_reconfigure(RECONFIG_PARAM_NODE_VOTES, nodeid,
req_lib_votequorum_setvotes->votes);
error_exit:
/* send status */
res_lib_votequorum_status.header.size = sizeof(res_lib_votequorum_status);
res_lib_votequorum_status.header.id = MESSAGE_RES_VOTEQUORUM_STATUS;
res_lib_votequorum_status.header.error = error;
corosync_api->ipc_response_send(conn, &res_lib_votequorum_status, sizeof(res_lib_votequorum_status));
LEAVE();
}
static void message_handler_req_lib_votequorum_leaving (void *conn, const void *message)
{
struct res_lib_votequorum_status res_lib_votequorum_status;
cs_error_t error = CS_OK;
ENTER();
quorum_exec_send_reconfigure(RECONFIG_PARAM_LEAVING, us->node_id, 1);
/*
* If we don't shut down in a sensible amount of time then cancel the
* leave status.
*/
if (leaving_timeout)
corosync_api->timer_add_duration((unsigned long long)leaving_timeout*1000000, NULL,
leaving_timer_fn, &leaving_timer);
/* send status */
res_lib_votequorum_status.header.size = sizeof(res_lib_votequorum_status);
res_lib_votequorum_status.header.id = MESSAGE_RES_VOTEQUORUM_STATUS;
res_lib_votequorum_status.header.error = error;
corosync_api->ipc_response_send(conn, &res_lib_votequorum_status, sizeof(res_lib_votequorum_status));
LEAVE();
}
static void quorum_device_timer_fn(void *arg)
{
struct timeval now;
ENTER();
if (!quorum_device || quorum_device->state == NODESTATE_DEAD)
return;
gettimeofday(&now, NULL);
if (quorum_device->last_hello.tv_sec + quorumdev_poll/1000 < now.tv_sec) {
quorum_device->state = NODESTATE_DEAD;
log_printf(LOGSYS_LEVEL_INFO, "lost contact with quorum device\n");
recalculate_quorum(0, 0);
}
else {
corosync_api->timer_add_duration((unsigned long long)quorumdev_poll*1000000, quorum_device,
quorum_device_timer_fn, &quorum_device_timer);
}
LEAVE();
}
static void message_handler_req_lib_votequorum_qdisk_register (void *conn,
const void *message)
{
const struct req_lib_votequorum_qdisk_register
*req_lib_votequorum_qdisk_register = message;
struct res_lib_votequorum_status res_lib_votequorum_status;
cs_error_t error = CS_OK;
ENTER();
if (quorum_device) {
error = CS_ERR_EXIST;
}
else {
quorum_device = allocate_node(0);
quorum_device->state = NODESTATE_DEAD;
quorum_device->votes = req_lib_votequorum_qdisk_register->votes;
strcpy(quorum_device_name, req_lib_votequorum_qdisk_register->name);
list_add(&quorum_device->list, &cluster_members_list);
}
/* send status */
res_lib_votequorum_status.header.size = sizeof(res_lib_votequorum_status);
res_lib_votequorum_status.header.id = MESSAGE_RES_VOTEQUORUM_STATUS;
res_lib_votequorum_status.header.error = error;
corosync_api->ipc_response_send(conn, &res_lib_votequorum_status, sizeof(res_lib_votequorum_status));
LEAVE();
}
static void message_handler_req_lib_votequorum_qdisk_unregister (void *conn,
const void *message)
{
struct res_lib_votequorum_status res_lib_votequorum_status;
cs_error_t error = CS_OK;
ENTER();
if (quorum_device) {
struct cluster_node *node = quorum_device;
quorum_device = NULL;
list_del(&node->list);
free(node);
recalculate_quorum(0, 0);
}
else {
error = CS_ERR_NOT_EXIST;
}
/* send status */
res_lib_votequorum_status.header.size = sizeof(res_lib_votequorum_status);
res_lib_votequorum_status.header.id = MESSAGE_RES_VOTEQUORUM_STATUS;
res_lib_votequorum_status.header.error = error;
corosync_api->ipc_response_send(conn, &res_lib_votequorum_status, sizeof(res_lib_votequorum_status));
LEAVE();
}
static void message_handler_req_lib_votequorum_qdisk_poll (void *conn,
const void *message)
{
const struct req_lib_votequorum_qdisk_poll
*req_lib_votequorum_qdisk_poll = message;
struct res_lib_votequorum_status res_lib_votequorum_status;
cs_error_t error = CS_OK;
ENTER();
if (quorum_device) {
if (req_lib_votequorum_qdisk_poll->state) {
gettimeofday(&quorum_device->last_hello, NULL);
if (quorum_device->state == NODESTATE_DEAD) {
quorum_device->state = NODESTATE_MEMBER;
recalculate_quorum(0, 0);
corosync_api->timer_add_duration((unsigned long long)quorumdev_poll*1000000, quorum_device,
quorum_device_timer_fn, &quorum_device_timer);
}
}
else {
if (quorum_device->state == NODESTATE_MEMBER) {
quorum_device->state = NODESTATE_DEAD;
recalculate_quorum(0, 0);
corosync_api->timer_delete(quorum_device_timer);
}
}
}
else {
error = CS_ERR_NOT_EXIST;
}
/* send status */
res_lib_votequorum_status.header.size = sizeof(res_lib_votequorum_status);
res_lib_votequorum_status.header.id = MESSAGE_RES_VOTEQUORUM_STATUS;
res_lib_votequorum_status.header.error = error;
corosync_api->ipc_response_send(conn, &res_lib_votequorum_status, sizeof(res_lib_votequorum_status));
LEAVE();
}
static void message_handler_req_lib_votequorum_qdisk_getinfo (void *conn,
const void *message)
{
struct res_lib_votequorum_qdisk_getinfo res_lib_votequorum_qdisk_getinfo;
cs_error_t error = CS_OK;
ENTER();
if (quorum_device) {
log_printf(LOGSYS_LEVEL_DEBUG, "got qdisk_getinfo state %d\n", quorum_device->state);
res_lib_votequorum_qdisk_getinfo.votes = quorum_device->votes;
if (quorum_device->state == NODESTATE_MEMBER)
res_lib_votequorum_qdisk_getinfo.state = 1;
else
res_lib_votequorum_qdisk_getinfo.state = 0;
strcpy(res_lib_votequorum_qdisk_getinfo.name, quorum_device_name);
}
else {
error = CS_ERR_NOT_EXIST;
}
/* send status */
res_lib_votequorum_qdisk_getinfo.header.size = sizeof(res_lib_votequorum_qdisk_getinfo);
res_lib_votequorum_qdisk_getinfo.header.id = MESSAGE_RES_VOTEQUORUM_GETINFO;
res_lib_votequorum_qdisk_getinfo.header.error = error;
corosync_api->ipc_response_send(conn, &res_lib_votequorum_qdisk_getinfo, sizeof(res_lib_votequorum_qdisk_getinfo));
LEAVE();
}
static void message_handler_req_lib_votequorum_setstate (void *conn,
const void *message)
{
struct res_lib_votequorum_status res_lib_votequorum_status;
cs_error_t error = CS_OK;
ENTER();
us->flags |= NODE_FLAGS_HASSTATE;
/* send status */
res_lib_votequorum_status.header.size = sizeof(res_lib_votequorum_status);
res_lib_votequorum_status.header.id = MESSAGE_RES_VOTEQUORUM_STATUS;
res_lib_votequorum_status.header.error = error;
corosync_api->ipc_response_send(conn, &res_lib_votequorum_status, sizeof(res_lib_votequorum_status));
LEAVE();
}
static void message_handler_req_lib_votequorum_trackstart (void *conn,
const void *msg)
{
const struct req_lib_votequorum_trackstart
*req_lib_votequorum_trackstart = msg;
struct res_lib_votequorum_status res_lib_votequorum_status;
struct quorum_pd *quorum_pd = (struct quorum_pd *)corosync_api->ipc_private_data_get (conn);
ENTER();
/*
* If an immediate listing of the current cluster membership
* is requested, generate membership list
*/
if (req_lib_votequorum_trackstart->track_flags & CS_TRACK_CURRENT ||
req_lib_votequorum_trackstart->track_flags & CS_TRACK_CHANGES) {
log_printf(LOGSYS_LEVEL_DEBUG, "sending initial status to %p\n", conn);
send_quorum_notification(conn, req_lib_votequorum_trackstart->context);
}
/*
* Record requests for tracking
*/
if (req_lib_votequorum_trackstart->track_flags & CS_TRACK_CHANGES ||
req_lib_votequorum_trackstart->track_flags & CS_TRACK_CHANGES_ONLY) {
quorum_pd->track_flags = req_lib_votequorum_trackstart->track_flags;
quorum_pd->tracking_enabled = 1;
quorum_pd->tracking_context = req_lib_votequorum_trackstart->context;
list_add (&quorum_pd->list, &trackers_list);
}
/* Send status */
res_lib_votequorum_status.header.size = sizeof(res_lib_votequorum_status);
res_lib_votequorum_status.header.id = MESSAGE_RES_VOTEQUORUM_STATUS;
res_lib_votequorum_status.header.error = CS_OK;
corosync_api->ipc_response_send(conn, &res_lib_votequorum_status, sizeof(res_lib_votequorum_status));
LEAVE();
}
static void message_handler_req_lib_votequorum_trackstop (void *conn,
const void *msg)
{
struct res_lib_votequorum_status res_lib_votequorum_status;
struct quorum_pd *quorum_pd = (struct quorum_pd *)corosync_api->ipc_private_data_get (conn);
int error = CS_OK;
ENTER();
if (quorum_pd->tracking_enabled) {
error = CS_OK;
quorum_pd->tracking_enabled = 0;
list_del (&quorum_pd->list);
list_init (&quorum_pd->list);
} else {
error = CS_ERR_NOT_EXIST;
}
/* send status */
res_lib_votequorum_status.header.size = sizeof(res_lib_votequorum_status);
res_lib_votequorum_status.header.id = MESSAGE_RES_VOTEQUORUM_STATUS;
res_lib_votequorum_status.header.error = error;
corosync_api->ipc_response_send(conn, &res_lib_votequorum_status, sizeof(res_lib_votequorum_status));
LEAVE();
}
static const char *kill_reason(int reason)
{
static char msg[1024];
switch (reason)
{
case VOTEQUORUM_REASON_KILL_REJECTED:
return "our membership application was rejected";
case VOTEQUORUM_REASON_KILL_APPLICATION:
return "we were killed by an application request";
case VOTEQUORUM_REASON_KILL_REJOIN:
return "we rejoined the cluster without a full restart";
default:
sprintf(msg, "we got kill message number %d", reason);
return msg;
}
}
static void reread_config(hdb_handle_t object_handle)
{
unsigned int old_votes;
unsigned int old_expected;
old_votes = us->votes;
old_expected = us->expected_votes;
/*
* Reload the configuration
*/
read_quorum_config(object_handle);
/*
* Check for fundamental changes that we need to propogate
*/
if (old_votes != us->votes) {
quorum_exec_send_reconfigure(RECONFIG_PARAM_NODE_VOTES, us->node_id, us->votes);
}
if (old_expected != us->expected_votes) {
quorum_exec_send_reconfigure(RECONFIG_PARAM_EXPECTED_VOTES, us->node_id, us->expected_votes);
}
}
static void quorum_key_change_notify(object_change_type_t change_type,
hdb_handle_t parent_object_handle,
hdb_handle_t object_handle,
const void *object_name_pt,
size_t object_name_len,
const void *key_name_pt, size_t key_len,
const void *key_value_pt, size_t key_value_len,
void *priv_data_pt)
{
if (memcmp(object_name_pt, "quorum", object_name_len) == 0)
reread_config(object_handle);
}
/* Called when the objdb is reloaded */
static void votequorum_objdb_reload_notify(
objdb_reload_notify_type_t type, int flush,
void *priv_data_pt)
{
/*
* A new quorum {} key might exist, cancel the
* existing notification at the start of reload,
* and start a new one on the new object when
* it's all settled.
*/
if (type == OBJDB_RELOAD_NOTIFY_START) {
corosync_api->object_track_stop(
quorum_key_change_notify,
NULL,
NULL,
NULL,
NULL);
}
if (type == OBJDB_RELOAD_NOTIFY_END ||
type == OBJDB_RELOAD_NOTIFY_FAILED) {
hdb_handle_t find_handle;
hdb_handle_t object_handle;
corosync_api->object_find_create(OBJECT_PARENT_HANDLE, "quorum", strlen("quorum"), &find_handle);
if (corosync_api->object_find_next(find_handle, &object_handle) == 0) {
add_votequorum_config_notification(object_handle);
reread_config(object_handle);
}
else {
log_printf(LOGSYS_LEVEL_ERROR, "votequorum objdb tracking stopped, cannot find quorum{} handle in objdb\n");
}
}
}
static void add_votequorum_config_notification(
hdb_handle_t quorum_object_handle)
{
corosync_api->object_track_start(quorum_object_handle,
1,
quorum_key_change_notify,
NULL,
NULL,
NULL,
NULL);
/*
* Reload notify must be on the parent object
*/
corosync_api->object_track_start(OBJECT_PARENT_HANDLE,
1,
NULL,
NULL,
NULL,
votequorum_objdb_reload_notify,
NULL);
}

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