Page Menu
Home
ClusterLabs Projects
Search
Configure Global Search
Log In
Files
F2020086
cfg.c
No One
Temporary
Actions
Download File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Flag For Later
Award Token
Size
17 KB
Referenced Files
None
Subscribers
None
cfg.c
View Options
/*
* Copyright (c) 2002-2005 MontaVista Software, Inc.
* Copyright (c) 2006-2013 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 <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <pthread.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/select.h>
#include <sys/un.h>
#include <sys/uio.h>
#include <qb/qbipcc.h>
#include <corosync/corotypes.h>
#include <corosync/corodefs.h>
#include <corosync/hdb.h>
#include <corosync/cfg.h>
#include <corosync/ipc_cfg.h>
#include "util.h"
/*
* Data structure for instance data
*/
struct cfg_inst {
qb_ipcc_connection_t *c;
corosync_cfg_callbacks_t callbacks;
cs_name_t comp_name;
int comp_registered;
int finalize;
};
/*
* All instances in one database
*/
static void cfg_inst_free (void *inst);
DECLARE_HDB_DATABASE (cfg_hdb, cfg_inst_free);
/*
* Implementation
*/
cs_error_t
corosync_cfg_initialize (
corosync_cfg_handle_t *cfg_handle,
const corosync_cfg_callbacks_t *cfg_callbacks)
{
struct cfg_inst *cfg_inst;
cs_error_t error = CS_OK;
error = hdb_error_to_cs (hdb_handle_create (&cfg_hdb, sizeof (struct cfg_inst), cfg_handle));
if (error != CS_OK) {
goto error_no_destroy;
}
error = hdb_error_to_cs (hdb_handle_get (&cfg_hdb, *cfg_handle, (void *)&cfg_inst));
if (error != CS_OK) {
goto error_destroy;
}
cfg_inst->finalize = 0;
cfg_inst->c = qb_ipcc_connect ("cfg", IPC_REQUEST_SIZE);
if (cfg_inst->c == NULL) {
error = qb_to_cs_error(-errno);
goto error_put_destroy;
}
if (cfg_callbacks) {
memcpy (&cfg_inst->callbacks, cfg_callbacks, sizeof (corosync_cfg_callbacks_t));
}
(void)hdb_handle_put (&cfg_hdb, *cfg_handle);
return (CS_OK);
error_put_destroy:
(void)hdb_handle_put (&cfg_hdb, *cfg_handle);
error_destroy:
(void)hdb_handle_destroy (&cfg_hdb, *cfg_handle);
error_no_destroy:
return (error);
}
cs_error_t
corosync_cfg_fd_get (
corosync_cfg_handle_t cfg_handle,
int32_t *selection_fd)
{
struct cfg_inst *cfg_inst;
cs_error_t error;
error = hdb_error_to_cs (hdb_handle_get (&cfg_hdb, cfg_handle, (void *)&cfg_inst));
if (error != CS_OK) {
return (error);
}
error = qb_to_cs_error (qb_ipcc_fd_get (cfg_inst->c, selection_fd));
(void)hdb_handle_put (&cfg_hdb, cfg_handle);
return (error);
}
cs_error_t
corosync_cfg_dispatch (
corosync_cfg_handle_t cfg_handle,
cs_dispatch_flags_t dispatch_flags)
{
int timeout = -1;
cs_error_t error;
int cont = 1; /* always continue do loop except when set to 0 */
struct cfg_inst *cfg_inst;
struct res_lib_cfg_testshutdown *res_lib_cfg_testshutdown;
corosync_cfg_callbacks_t callbacks;
struct qb_ipc_response_header *dispatch_data;
char dispatch_buf[IPC_DISPATCH_SIZE];
error = hdb_error_to_cs (hdb_handle_get (&cfg_hdb, cfg_handle,
(void *)&cfg_inst));
if (error != CS_OK) {
return (error);
}
/*
* Timeout instantly for CS_DISPATCH_ONE_NONBLOCKING or CS_DISPATCH_ALL and
* wait indefinately for CS_DISPATCH_ONE or CS_DISPATCH_BLOCKING
*/
if (dispatch_flags == CS_DISPATCH_ALL || dispatch_flags == CS_DISPATCH_ONE_NONBLOCKING) {
timeout = 0;
}
dispatch_data = (struct qb_ipc_response_header *)dispatch_buf;
do {
error = qb_to_cs_error (qb_ipcc_event_recv (
cfg_inst->c,
dispatch_buf,
IPC_DISPATCH_SIZE,
timeout));
if (error == CS_ERR_BAD_HANDLE) {
error = CS_OK;
goto error_put;
}
if (error == CS_ERR_TRY_AGAIN) {
if (dispatch_flags == CS_DISPATCH_ONE_NONBLOCKING) {
/*
* Don't mask error
*/
goto error_put;
}
error = CS_OK;
if (dispatch_flags == CS_DISPATCH_ALL) {
break; /* exit do while cont is 1 loop */
} else {
continue; /* next poll */
}
}
if (error != CS_OK) {
goto error_put;
}
/*
* Make copy of callbacks, message data, unlock instance, and call callback
* A risk of this dispatch method is that the callback routines may
* operate at the same time that cfgFinalize has been called in another thread.
*/
memcpy (&callbacks, &cfg_inst->callbacks, sizeof (corosync_cfg_callbacks_t));
/*
* Dispatch incoming response
*/
switch (dispatch_data->id) {
case MESSAGE_RES_CFG_TESTSHUTDOWN:
if (callbacks.corosync_cfg_shutdown_callback == NULL) {
break;
}
res_lib_cfg_testshutdown = (struct res_lib_cfg_testshutdown *)dispatch_data;
callbacks.corosync_cfg_shutdown_callback(cfg_handle, res_lib_cfg_testshutdown->flags);
break;
default:
error = CS_ERR_LIBRARY;
goto error_nounlock;
break;
}
if (cfg_inst->finalize) {
/*
* If the finalize has been called then get out of the dispatch.
*/
error = CS_ERR_BAD_HANDLE;
goto error_put;
}
/*
* Determine if more messages should be processed
*/
if (dispatch_flags == CS_DISPATCH_ONE || dispatch_flags == CS_DISPATCH_ONE_NONBLOCKING) {
cont = 0;
}
} while (cont);
error_put:
(void)hdb_handle_put (&cfg_hdb, cfg_handle);
error_nounlock:
return (error);
}
static void cfg_inst_free (void *inst)
{
struct cfg_inst *cfg_inst = (struct cfg_inst *)inst;
qb_ipcc_disconnect(cfg_inst->c);
}
cs_error_t
corosync_cfg_finalize (
corosync_cfg_handle_t cfg_handle)
{
struct cfg_inst *cfg_inst;
cs_error_t error;
error = hdb_error_to_cs(hdb_handle_get (&cfg_hdb, cfg_handle, (void *)&cfg_inst));
if (error != CS_OK) {
return (error);
}
/*
* Another thread has already started finalizing
*/
if (cfg_inst->finalize) {
(void)hdb_handle_put (&cfg_hdb, cfg_handle);
return (CS_ERR_BAD_HANDLE);
}
cfg_inst->finalize = 1;
(void)hdb_handle_destroy (&cfg_hdb, cfg_handle);
(void)hdb_handle_put (&cfg_hdb, cfg_handle);
return (error);
}
cs_error_t
corosync_cfg_ring_status_get (
corosync_cfg_handle_t cfg_handle,
char ***interface_names,
char ***status,
unsigned int *interface_count)
{
struct cfg_inst *cfg_inst;
struct req_lib_cfg_ringstatusget req_lib_cfg_ringstatusget;
struct res_lib_cfg_ringstatusget res_lib_cfg_ringstatusget;
unsigned int i, j;
cs_error_t error;
struct iovec iov;
error = hdb_error_to_cs(hdb_handle_get (&cfg_hdb, cfg_handle, (void *)&cfg_inst));
if (error != CS_OK) {
return (error);
}
req_lib_cfg_ringstatusget.header.size = sizeof (struct req_lib_cfg_ringstatusget);
req_lib_cfg_ringstatusget.header.id = MESSAGE_REQ_CFG_RINGSTATUSGET;
iov.iov_base = (void *)&req_lib_cfg_ringstatusget,
iov.iov_len = sizeof (struct req_lib_cfg_ringstatusget),
error = qb_to_cs_error (qb_ipcc_sendv_recv(cfg_inst->c,
&iov,
1,
&res_lib_cfg_ringstatusget,
sizeof (struct res_lib_cfg_ringstatusget), CS_IPC_TIMEOUT_MS));
if (error != CS_OK) {
goto exit_handle_put;
}
*interface_count = res_lib_cfg_ringstatusget.interface_count;
*interface_names = malloc (sizeof (char *) * *interface_count);
if (*interface_names == NULL) {
return (CS_ERR_NO_MEMORY);
}
memset (*interface_names, 0, sizeof (char *) * *interface_count);
*status = malloc (sizeof (char *) * *interface_count);
if (*status == NULL) {
error = CS_ERR_NO_MEMORY;
goto error_free_interface_names_array;
}
memset (*status, 0, sizeof (char *) * *interface_count);
for (i = 0; i < res_lib_cfg_ringstatusget.interface_count; i++) {
(*(interface_names))[i] = strdup (res_lib_cfg_ringstatusget.interface_name[i]);
if ((*(interface_names))[i] == NULL) {
error = CS_ERR_NO_MEMORY;
goto error_free_interface_names;
}
}
for (i = 0; i < res_lib_cfg_ringstatusget.interface_count; i++) {
(*(status))[i] = strdup (res_lib_cfg_ringstatusget.interface_status[i]);
if ((*(status))[i] == NULL) {
error = CS_ERR_NO_MEMORY;
goto error_free_status;
}
}
goto exit_handle_put;
error_free_status:
for (j = 0; j < i; j++) {
free ((*(status))[j]);
}
i = *interface_count;
error_free_interface_names:
for (j = 0; j < i; j++) {
free ((*(interface_names))[j]);
}
free (*status);
error_free_interface_names_array:
free (*interface_names);
exit_handle_put:
(void)hdb_handle_put (&cfg_hdb, cfg_handle);
return (error);
}
cs_error_t
corosync_cfg_ring_reenable (
corosync_cfg_handle_t cfg_handle)
{
struct cfg_inst *cfg_inst;
struct req_lib_cfg_ringreenable req_lib_cfg_ringreenable;
struct res_lib_cfg_ringreenable res_lib_cfg_ringreenable;
cs_error_t error;
struct iovec iov;
error = hdb_error_to_cs(hdb_handle_get (&cfg_hdb, cfg_handle, (void *)&cfg_inst));
if (error != CS_OK) {
return (error);
}
req_lib_cfg_ringreenable.header.size = sizeof (struct req_lib_cfg_ringreenable);
req_lib_cfg_ringreenable.header.id = MESSAGE_REQ_CFG_RINGREENABLE;
iov.iov_base = (void *)&req_lib_cfg_ringreenable,
iov.iov_len = sizeof (struct req_lib_cfg_ringreenable);
error = qb_to_cs_error (qb_ipcc_sendv_recv (cfg_inst->c,
&iov,
1,
&res_lib_cfg_ringreenable,
sizeof (struct res_lib_cfg_ringreenable), CS_IPC_TIMEOUT_MS));
(void)hdb_handle_put (&cfg_hdb, cfg_handle);
return (error);
}
cs_error_t
corosync_cfg_kill_node (
corosync_cfg_handle_t cfg_handle,
unsigned int nodeid,
const char *reason)
{
struct cfg_inst *cfg_inst;
struct req_lib_cfg_killnode req_lib_cfg_killnode;
struct res_lib_cfg_killnode res_lib_cfg_killnode;
cs_error_t error;
struct iovec iov;
if (strlen(reason) >= CS_MAX_NAME_LENGTH)
return CS_ERR_NAME_TOO_LONG;
error = hdb_error_to_cs (hdb_handle_get (&cfg_hdb, cfg_handle,
(void *)&cfg_inst));
if (error != CS_OK) {
return (error);
}
req_lib_cfg_killnode.header.id = MESSAGE_REQ_CFG_KILLNODE;
req_lib_cfg_killnode.header.size = sizeof (struct req_lib_cfg_killnode);
req_lib_cfg_killnode.nodeid = nodeid;
strcpy((char *)req_lib_cfg_killnode.reason.value, reason);
req_lib_cfg_killnode.reason.length = strlen(reason)+1;
iov.iov_base = (void *)&req_lib_cfg_killnode;
iov.iov_len = sizeof (struct req_lib_cfg_killnode);
error = qb_to_cs_error (qb_ipcc_sendv_recv (cfg_inst->c,
&iov,
1,
&res_lib_cfg_killnode,
sizeof (struct res_lib_cfg_killnode), CS_IPC_TIMEOUT_MS));
error = res_lib_cfg_killnode.header.error;
(void)hdb_handle_put (&cfg_hdb, cfg_handle);
return (error == CS_OK ? res_lib_cfg_killnode.header.error : error);
}
cs_error_t
corosync_cfg_try_shutdown (
corosync_cfg_handle_t cfg_handle,
corosync_cfg_shutdown_flags_t flags)
{
struct cfg_inst *cfg_inst;
struct req_lib_cfg_tryshutdown req_lib_cfg_tryshutdown;
struct res_lib_cfg_tryshutdown res_lib_cfg_tryshutdown;
cs_error_t error;
struct iovec iov;
error = hdb_error_to_cs(hdb_handle_get (&cfg_hdb, cfg_handle,
(void *)&cfg_inst));
if (error != CS_OK) {
return (error);
}
req_lib_cfg_tryshutdown.header.id = MESSAGE_REQ_CFG_TRYSHUTDOWN;
req_lib_cfg_tryshutdown.header.size = sizeof (struct req_lib_cfg_tryshutdown);
req_lib_cfg_tryshutdown.flags = flags;
iov.iov_base = (void *)&req_lib_cfg_tryshutdown;
iov.iov_len = sizeof (req_lib_cfg_tryshutdown);
error = qb_to_cs_error (qb_ipcc_sendv_recv (cfg_inst->c,
&iov,
1,
&res_lib_cfg_tryshutdown,
sizeof (struct res_lib_cfg_tryshutdown), CS_IPC_TIMEOUT_MS));
(void)hdb_handle_put (&cfg_hdb, cfg_handle);
return (error == CS_OK ? res_lib_cfg_tryshutdown.header.error : error);
}
cs_error_t
corosync_cfg_replyto_shutdown (
corosync_cfg_handle_t cfg_handle,
corosync_cfg_shutdown_reply_flags_t response)
{
struct cfg_inst *cfg_inst;
struct req_lib_cfg_replytoshutdown req_lib_cfg_replytoshutdown;
struct res_lib_cfg_replytoshutdown res_lib_cfg_replytoshutdown;
struct iovec iov;
cs_error_t error;
error = hdb_error_to_cs(hdb_handle_get (&cfg_hdb, cfg_handle,
(void *)&cfg_inst));
if (error != CS_OK) {
return (error);
}
req_lib_cfg_replytoshutdown.header.id = MESSAGE_REQ_CFG_REPLYTOSHUTDOWN;
req_lib_cfg_replytoshutdown.header.size = sizeof (struct req_lib_cfg_replytoshutdown);
req_lib_cfg_replytoshutdown.response = response;
iov.iov_base = (void *)&req_lib_cfg_replytoshutdown;
iov.iov_len = sizeof (struct req_lib_cfg_replytoshutdown);
error = qb_to_cs_error (qb_ipcc_sendv_recv (cfg_inst->c,
&iov,
1,
&res_lib_cfg_replytoshutdown,
sizeof (struct res_lib_cfg_replytoshutdown), CS_IPC_TIMEOUT_MS));
return (error);
}
cs_error_t corosync_cfg_get_node_addrs (
corosync_cfg_handle_t cfg_handle,
int nodeid,
size_t max_addrs,
int *num_addrs,
corosync_cfg_node_address_t *addrs)
{
cs_error_t error;
struct req_lib_cfg_get_node_addrs req_lib_cfg_get_node_addrs;
struct res_lib_cfg_get_node_addrs *res_lib_cfg_get_node_addrs;
struct cfg_inst *cfg_inst;
int addrlen = 0;
int i;
struct iovec iov;
const char *addr_buf;
char response_buf[IPC_RESPONSE_SIZE];
error = hdb_error_to_cs(hdb_handle_get (&cfg_hdb, cfg_handle,
(void *)&cfg_inst));
if (error != CS_OK) {
return (error);
}
req_lib_cfg_get_node_addrs.header.size = sizeof (req_lib_cfg_get_node_addrs);
req_lib_cfg_get_node_addrs.header.id = MESSAGE_REQ_CFG_GET_NODE_ADDRS;
req_lib_cfg_get_node_addrs.nodeid = nodeid;
iov.iov_base = (char *)&req_lib_cfg_get_node_addrs;
iov.iov_len = sizeof (req_lib_cfg_get_node_addrs);
error = qb_to_cs_error (qb_ipcc_sendv_recv (
cfg_inst->c,
&iov, 1,
response_buf, IPC_RESPONSE_SIZE, CS_IPC_TIMEOUT_MS));
res_lib_cfg_get_node_addrs = (struct res_lib_cfg_get_node_addrs *)response_buf;
if (error != CS_OK) {
goto error_put;
}
if (res_lib_cfg_get_node_addrs->family == AF_INET)
addrlen = sizeof(struct sockaddr_in);
if (res_lib_cfg_get_node_addrs->family == AF_INET6)
addrlen = sizeof(struct sockaddr_in6);
for (i = 0, addr_buf = (char *)res_lib_cfg_get_node_addrs->addrs;
i < max_addrs && i<res_lib_cfg_get_node_addrs->num_addrs;
i++, addr_buf += TOTEMIP_ADDRLEN) {
struct sockaddr_in *in;
struct sockaddr_in6 *in6;
addrs[i].address_length = addrlen;
if (res_lib_cfg_get_node_addrs->family == AF_INET) {
in = (struct sockaddr_in *)addrs[i].address;
in->sin_family = AF_INET;
memcpy(&in->sin_addr, addr_buf, sizeof(struct in_addr));
}
if (res_lib_cfg_get_node_addrs->family == AF_INET6) {
in6 = (struct sockaddr_in6 *)addrs[i].address;
in6->sin6_family = AF_INET6;
memcpy(&in6->sin6_addr, addr_buf, sizeof(struct in6_addr));
}
}
*num_addrs = res_lib_cfg_get_node_addrs->num_addrs;
errno = error = res_lib_cfg_get_node_addrs->header.error;
error_put:
hdb_handle_put (&cfg_hdb, cfg_handle);
return (error);
}
cs_error_t corosync_cfg_local_get (
corosync_cfg_handle_t handle,
unsigned int *local_nodeid)
{
cs_error_t error;
struct cfg_inst *cfg_inst;
struct iovec iov;
struct req_lib_cfg_local_get req_lib_cfg_local_get;
struct res_lib_cfg_local_get res_lib_cfg_local_get;
error = hdb_error_to_cs(hdb_handle_get (&cfg_hdb, handle, (void *)&cfg_inst));
if (error != CS_OK) {
return (error);
}
req_lib_cfg_local_get.header.size = sizeof (struct qb_ipc_request_header);
req_lib_cfg_local_get.header.id = MESSAGE_REQ_CFG_LOCAL_GET;
iov.iov_base = (void *)&req_lib_cfg_local_get;
iov.iov_len = sizeof (struct req_lib_cfg_local_get);
error = qb_to_cs_error (qb_ipcc_sendv_recv (
cfg_inst->c,
&iov,
1,
&res_lib_cfg_local_get,
sizeof (struct res_lib_cfg_local_get), CS_IPC_TIMEOUT_MS));
if (error != CS_OK) {
goto error_exit;
}
error = res_lib_cfg_local_get.header.error;
*local_nodeid = res_lib_cfg_local_get.local_nodeid;
error_exit:
(void)hdb_handle_put (&cfg_hdb, handle);
return (error);
}
cs_error_t corosync_cfg_reload_config (
corosync_cfg_handle_t handle)
{
cs_error_t error;
struct cfg_inst *cfg_inst;
struct iovec iov;
struct req_lib_cfg_reload_config req_lib_cfg_reload_config;
struct res_lib_cfg_reload_config res_lib_cfg_reload_config;
error = hdb_error_to_cs(hdb_handle_get (&cfg_hdb, handle, (void *)&cfg_inst));
if (error != CS_OK) {
return (error);
}
req_lib_cfg_reload_config.header.size = sizeof (struct qb_ipc_request_header);
req_lib_cfg_reload_config.header.id = MESSAGE_REQ_CFG_RELOAD_CONFIG;
iov.iov_base = (void *)&req_lib_cfg_reload_config;
iov.iov_len = sizeof (struct req_lib_cfg_reload_config);
error = qb_to_cs_error (qb_ipcc_sendv_recv (
cfg_inst->c,
&iov,
1,
&res_lib_cfg_reload_config,
sizeof (struct res_lib_cfg_reload_config), CS_IPC_TIMEOUT_MS));
if (error != CS_OK) {
goto error_exit;
}
error = res_lib_cfg_reload_config.header.error;
error_exit:
(void)hdb_handle_put (&cfg_hdb, handle);
return (error);
}
File Metadata
Details
Attached
Mime Type
text/x-c
Expires
Mon, Dec 23, 12:27 PM (1 d, 13 h)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
1128341
Default Alt Text
cfg.c (17 KB)
Attached To
Mode
rC Corosync
Attached
Detach File
Event Timeline
Log In to Comment