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5dc3fc4bda
Status string should be same lenght as needed for cfg ringstatusget function. Signed-off-by: Jan Friesse <jfriesse@redhat.com> Reviewed-by: Christine Caulfield <ccaulfie@redhat.com>
2160 lines
56 KiB
C
2160 lines
56 KiB
C
/*
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* Copyright (c) 2005 MontaVista Software, Inc.
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* Copyright (c) 2006-2012 Red Hat, Inc.
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*
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* All rights reserved.
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*
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* Author: Steven Dake (sdake@redhat.com)
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*
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* This software licensed under BSD license, the text of which follows:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of the MontaVista Software, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <config.h>
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#include <assert.h>
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#include <pthread.h>
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#include <sys/mman.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#include <sys/un.h>
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#include <sys/ioctl.h>
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#include <sys/param.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <errno.h>
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#include <sched.h>
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#include <time.h>
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#include <sys/time.h>
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#include <sys/poll.h>
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#include <limits.h>
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#include <corosync/sq.h>
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#include <corosync/list.h>
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#include <corosync/swab.h>
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#include <qb/qbdefs.h>
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#include <qb/qbloop.h>
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#define LOGSYS_UTILS_ONLY 1
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#include <corosync/logsys.h>
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#include "totemnet.h"
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#include "totemrrp.h"
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void rrp_deliver_fn (
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void *context,
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const void *msg,
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unsigned int msg_len);
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void rrp_iface_change_fn (
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void *context,
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const struct totem_ip_address *iface_addr);
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struct totemrrp_instance;
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struct passive_instance {
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struct totemrrp_instance *rrp_instance;
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unsigned int *faulty;
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unsigned int *token_recv_count;
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unsigned int *mcast_recv_count;
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unsigned char token[15000];
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unsigned int token_len;
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qb_loop_timer_handle timer_expired_token;
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qb_loop_timer_handle timer_problem_decrementer;
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void *totemrrp_context;
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unsigned int token_xmit_iface;
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unsigned int msg_xmit_iface;
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};
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struct active_instance {
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struct totemrrp_instance *rrp_instance;
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unsigned int *faulty;
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unsigned int *last_token_recv;
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unsigned int *counter_problems;
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unsigned char token[15000];
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unsigned int token_len;
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unsigned int last_token_seq;
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qb_loop_timer_handle timer_expired_token;
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qb_loop_timer_handle timer_problem_decrementer;
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void *totemrrp_context;
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};
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struct rrp_algo {
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const char *name;
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void * (*initialize) (
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struct totemrrp_instance *rrp_instance,
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int interface_count);
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void (*mcast_recv) (
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struct totemrrp_instance *instance,
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unsigned int iface_no,
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void *context,
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const void *msg,
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unsigned int msg_len);
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void (*mcast_noflush_send) (
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struct totemrrp_instance *instance,
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const void *msg,
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unsigned int msg_len);
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void (*mcast_flush_send) (
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struct totemrrp_instance *instance,
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const void *msg,
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unsigned int msg_len);
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void (*token_recv) (
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struct totemrrp_instance *instance,
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unsigned int iface_no,
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void *context,
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const void *msg,
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unsigned int msg_len,
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unsigned int token_seqid);
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void (*token_send) (
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struct totemrrp_instance *instance,
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const void *msg,
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unsigned int msg_len);
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void (*recv_flush) (
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struct totemrrp_instance *instance);
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void (*send_flush) (
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struct totemrrp_instance *instance);
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void (*iface_check) (
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struct totemrrp_instance *instance);
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void (*processor_count_set) (
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struct totemrrp_instance *instance,
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unsigned int processor_count);
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void (*token_target_set) (
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struct totemrrp_instance *instance,
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struct totem_ip_address *token_target,
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unsigned int iface_no);
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void (*ring_reenable) (
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struct totemrrp_instance *instance,
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unsigned int iface_no);
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int (*mcast_recv_empty) (
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struct totemrrp_instance *instance);
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int (*member_add) (
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struct totemrrp_instance *instance,
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const struct totem_ip_address *member,
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unsigned int iface_no);
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int (*member_remove) (
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struct totemrrp_instance *instance,
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const struct totem_ip_address *member,
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unsigned int iface_no);
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};
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#define STATUS_STR_LEN 512
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struct totemrrp_instance {
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qb_loop_t *poll_handle;
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struct totem_interface *interfaces;
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struct rrp_algo *rrp_algo;
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void *context;
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char *status[INTERFACE_MAX];
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void (*totemrrp_deliver_fn) (
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void *context,
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const void *msg,
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unsigned int msg_len);
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void (*totemrrp_iface_change_fn) (
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void *context,
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const struct totem_ip_address *iface_addr,
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unsigned int iface_no);
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void (*totemrrp_token_seqid_get) (
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const void *msg,
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unsigned int *seqid,
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unsigned int *token_is);
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void (*totemrrp_target_set_completed) (
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void *context);
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unsigned int (*totemrrp_msgs_missing) (void);
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/*
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* Function and data used to log messages
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*/
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int totemrrp_log_level_security;
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int totemrrp_log_level_error;
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int totemrrp_log_level_warning;
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int totemrrp_log_level_notice;
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int totemrrp_log_level_debug;
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int totemrrp_subsys_id;
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void (*totemrrp_log_printf) (
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int level,
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int subsys,
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const char *function,
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const char *file,
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int line,
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const char *format, ...)__attribute__((format(printf, 6, 7)));
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void **net_handles;
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void *rrp_algo_instance;
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int interface_count;
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int processor_count;
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int my_nodeid;
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struct totem_config *totem_config;
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void *deliver_fn_context[INTERFACE_MAX];
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qb_loop_timer_handle timer_active_test_ring_timeout[INTERFACE_MAX];
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totemrrp_stats_t stats;
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};
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static void stats_set_interface_faulty(struct totemrrp_instance *rrp_instance,
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unsigned int iface_no, int is_faulty);
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/*
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* None Replication Forward Declerations
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*/
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static void none_mcast_recv (
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struct totemrrp_instance *instance,
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unsigned int iface_no,
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void *context,
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const void *msg,
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unsigned int msg_len);
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static void none_mcast_noflush_send (
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struct totemrrp_instance *instance,
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const void *msg,
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unsigned int msg_len);
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static void none_mcast_flush_send (
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struct totemrrp_instance *instance,
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const void *msg,
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unsigned int msg_len);
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static void none_token_recv (
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struct totemrrp_instance *instance,
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unsigned int iface_no,
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void *context,
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const void *msg,
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unsigned int msg_len,
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unsigned int token_seqid);
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static void none_token_send (
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struct totemrrp_instance *instance,
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const void *msg,
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unsigned int msg_len);
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static void none_recv_flush (
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struct totemrrp_instance *instance);
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static void none_send_flush (
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struct totemrrp_instance *instance);
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static void none_iface_check (
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struct totemrrp_instance *instance);
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static void none_processor_count_set (
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struct totemrrp_instance *instance,
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unsigned int processor_count_set);
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static void none_token_target_set (
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struct totemrrp_instance *instance,
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struct totem_ip_address *token_target,
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unsigned int iface_no);
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static void none_ring_reenable (
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struct totemrrp_instance *instance,
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unsigned int iface_no);
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static int none_mcast_recv_empty (
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struct totemrrp_instance *instance);
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static int none_member_add (
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struct totemrrp_instance *instance,
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const struct totem_ip_address *member,
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unsigned int iface_no);
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static int none_member_remove (
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struct totemrrp_instance *instance,
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const struct totem_ip_address *member,
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unsigned int iface_no);
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/*
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* Passive Replication Forward Declerations
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*/
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static void *passive_instance_initialize (
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struct totemrrp_instance *rrp_instance,
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int interface_count);
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static void passive_mcast_recv (
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struct totemrrp_instance *instance,
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unsigned int iface_no,
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void *context,
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const void *msg,
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unsigned int msg_len);
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static void passive_mcast_noflush_send (
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struct totemrrp_instance *instance,
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const void *msg,
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unsigned int msg_len);
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static void passive_mcast_flush_send (
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struct totemrrp_instance *instance,
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const void *msg,
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unsigned int msg_len);
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static void passive_monitor (
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struct totemrrp_instance *rrp_instance,
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unsigned int iface_no,
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int is_token_recv_count);
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static void passive_token_recv (
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struct totemrrp_instance *instance,
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unsigned int iface_no,
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void *context,
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const void *msg,
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unsigned int msg_len,
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unsigned int token_seqid);
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static void passive_token_send (
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struct totemrrp_instance *instance,
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const void *msg,
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unsigned int msg_len);
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static void passive_recv_flush (
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struct totemrrp_instance *instance);
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static void passive_send_flush (
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struct totemrrp_instance *instance);
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static void passive_iface_check (
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struct totemrrp_instance *instance);
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static void passive_processor_count_set (
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struct totemrrp_instance *instance,
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unsigned int processor_count_set);
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static void passive_token_target_set (
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struct totemrrp_instance *instance,
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struct totem_ip_address *token_target,
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unsigned int iface_no);
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static void passive_ring_reenable (
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struct totemrrp_instance *instance,
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unsigned int iface_no);
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static int passive_mcast_recv_empty (
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struct totemrrp_instance *instance);
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static int passive_member_add (
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struct totemrrp_instance *instance,
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const struct totem_ip_address *member,
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unsigned int iface_no);
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static int passive_member_remove (
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struct totemrrp_instance *instance,
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const struct totem_ip_address *member,
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unsigned int iface_no);
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/*
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* Active Replication Forward Definitions
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*/
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static void *active_instance_initialize (
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struct totemrrp_instance *rrp_instance,
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int interface_count);
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static void active_mcast_recv (
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struct totemrrp_instance *instance,
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unsigned int iface_no,
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void *context,
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const void *msg,
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unsigned int msg_len);
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static void active_mcast_noflush_send (
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struct totemrrp_instance *instance,
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const void *msg,
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unsigned int msg_len);
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static void active_mcast_flush_send (
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struct totemrrp_instance *instance,
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const void *msg,
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unsigned int msg_len);
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static void active_token_recv (
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struct totemrrp_instance *instance,
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unsigned int iface_no,
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void *context,
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const void *msg,
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unsigned int msg_len,
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unsigned int token_seqid);
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static void active_token_send (
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struct totemrrp_instance *instance,
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const void *msg,
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unsigned int msg_len);
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static void active_recv_flush (
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struct totemrrp_instance *instance);
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static void active_send_flush (
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struct totemrrp_instance *instance);
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static void active_iface_check (
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struct totemrrp_instance *instance);
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static void active_processor_count_set (
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struct totemrrp_instance *instance,
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unsigned int processor_count_set);
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static void active_token_target_set (
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struct totemrrp_instance *instance,
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struct totem_ip_address *token_target,
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unsigned int iface_no);
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static void active_ring_reenable (
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struct totemrrp_instance *instance,
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unsigned int iface_no);
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static int active_mcast_recv_empty (
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struct totemrrp_instance *instance);
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static int active_member_add (
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struct totemrrp_instance *instance,
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const struct totem_ip_address *member,
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unsigned int iface_no);
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static int active_member_remove (
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struct totemrrp_instance *instance,
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const struct totem_ip_address *member,
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unsigned int iface_no);
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static void active_timer_expired_token_start (
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struct active_instance *active_instance);
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static void active_timer_expired_token_cancel (
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struct active_instance *active_instance);
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static void active_timer_problem_decrementer_start (
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struct active_instance *active_instance);
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static void active_timer_problem_decrementer_cancel (
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struct active_instance *active_instance);
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/*
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* 0-5 reserved for totemsrp.c
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*/
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#define MESSAGE_TYPE_RING_TEST_ACTIVE 6
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#define MESSAGE_TYPE_RING_TEST_ACTIVATE 7
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#define ENDIAN_LOCAL 0xff22
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/*
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* Rollover handling:
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*
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* ARR_SEQNO_START_TOKEN is the starting sequence number of last seen sequence
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* for a token for active redundand ring. This should remain zero, unless testing
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* overflow in which case 07fffff00 or 0xffffff00 are good starting values.
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* It should be same as on defined in totemsrp.c
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*/
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#define ARR_SEQNO_START_TOKEN 0x0
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/*
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* These can be used ot test different rollover points
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* #define ARR_SEQNO_START_MSG 0xfffffe00
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*/
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/*
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* Threshold value when recv_count for passive rrp should be adjusted.
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* Set this value to some smaller for testing of adjusting proper
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* functionality. Also keep in mind that this value must be smaller
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* then rrp_problem_count_threshold
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*/
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#define PASSIVE_RECV_COUNT_THRESHOLD (INT_MAX / 2)
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struct message_header {
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char type;
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char encapsulated;
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unsigned short endian_detector;
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int ring_number;
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int nodeid_activator;
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} __attribute__((packed));
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struct deliver_fn_context {
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struct totemrrp_instance *instance;
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void *context;
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int iface_no;
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};
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struct rrp_algo none_algo = {
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.name = "none",
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.initialize = NULL,
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.mcast_recv = none_mcast_recv,
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.mcast_noflush_send = none_mcast_noflush_send,
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.mcast_flush_send = none_mcast_flush_send,
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.token_recv = none_token_recv,
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.token_send = none_token_send,
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.recv_flush = none_recv_flush,
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.send_flush = none_send_flush,
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.iface_check = none_iface_check,
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.processor_count_set = none_processor_count_set,
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.token_target_set = none_token_target_set,
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.ring_reenable = none_ring_reenable,
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.mcast_recv_empty = none_mcast_recv_empty,
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.member_add = none_member_add,
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.member_remove = none_member_remove
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};
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|
|
struct rrp_algo passive_algo = {
|
|
.name = "passive",
|
|
.initialize = passive_instance_initialize,
|
|
.mcast_recv = passive_mcast_recv,
|
|
.mcast_noflush_send = passive_mcast_noflush_send,
|
|
.mcast_flush_send = passive_mcast_flush_send,
|
|
.token_recv = passive_token_recv,
|
|
.token_send = passive_token_send,
|
|
.recv_flush = passive_recv_flush,
|
|
.send_flush = passive_send_flush,
|
|
.iface_check = passive_iface_check,
|
|
.processor_count_set = passive_processor_count_set,
|
|
.token_target_set = passive_token_target_set,
|
|
.ring_reenable = passive_ring_reenable,
|
|
.mcast_recv_empty = passive_mcast_recv_empty,
|
|
.member_add = passive_member_add,
|
|
.member_remove = passive_member_remove
|
|
};
|
|
|
|
struct rrp_algo active_algo = {
|
|
.name = "active",
|
|
.initialize = active_instance_initialize,
|
|
.mcast_recv = active_mcast_recv,
|
|
.mcast_noflush_send = active_mcast_noflush_send,
|
|
.mcast_flush_send = active_mcast_flush_send,
|
|
.token_recv = active_token_recv,
|
|
.token_send = active_token_send,
|
|
.recv_flush = active_recv_flush,
|
|
.send_flush = active_send_flush,
|
|
.iface_check = active_iface_check,
|
|
.processor_count_set = active_processor_count_set,
|
|
.token_target_set = active_token_target_set,
|
|
.ring_reenable = active_ring_reenable,
|
|
.mcast_recv_empty = active_mcast_recv_empty,
|
|
.member_add = active_member_add,
|
|
.member_remove = active_member_remove
|
|
};
|
|
|
|
struct rrp_algo *rrp_algos[] = {
|
|
&none_algo,
|
|
&passive_algo,
|
|
&active_algo
|
|
};
|
|
|
|
#define RRP_ALGOS_COUNT 3
|
|
|
|
#define log_printf(level, format, args...) \
|
|
do { \
|
|
rrp_instance->totemrrp_log_printf ( \
|
|
level, rrp_instance->totemrrp_subsys_id, \
|
|
__FUNCTION__, __FILE__, __LINE__, \
|
|
format, ##args); \
|
|
} while (0);
|
|
|
|
static void stats_set_interface_faulty(struct totemrrp_instance *rrp_instance,
|
|
unsigned int iface_no, int is_faulty)
|
|
{
|
|
rrp_instance->stats.faulty[iface_no] = (is_faulty ? 1 : 0);
|
|
}
|
|
|
|
static void test_active_msg_endian_convert(const struct message_header *in, struct message_header *out)
|
|
{
|
|
out->type = in->type;
|
|
out->encapsulated = in->encapsulated;
|
|
out->endian_detector = ENDIAN_LOCAL;
|
|
out->ring_number = swab32 (in->ring_number);
|
|
out->nodeid_activator = swab32(in->nodeid_activator);
|
|
}
|
|
|
|
static void timer_function_test_ring_timeout (void *context)
|
|
{
|
|
struct deliver_fn_context *deliver_fn_context = (struct deliver_fn_context *)context;
|
|
struct totemrrp_instance *rrp_instance = deliver_fn_context->instance;
|
|
unsigned int *faulty = NULL;
|
|
int iface_no = deliver_fn_context->iface_no;
|
|
struct message_header msg = {
|
|
.type = MESSAGE_TYPE_RING_TEST_ACTIVE,
|
|
.endian_detector = ENDIAN_LOCAL,
|
|
};
|
|
|
|
if (strcmp(rrp_instance->totem_config->rrp_mode, "active") == 0)
|
|
faulty = ((struct active_instance *)(rrp_instance->rrp_algo_instance))->faulty;
|
|
if (strcmp(rrp_instance->totem_config->rrp_mode, "passive") == 0)
|
|
faulty = ((struct passive_instance *)(rrp_instance->rrp_algo_instance))->faulty;
|
|
|
|
assert (faulty != NULL);
|
|
|
|
if (faulty[iface_no] == 1) {
|
|
msg.ring_number = iface_no;
|
|
msg.nodeid_activator = rrp_instance->my_nodeid;
|
|
totemnet_token_send (
|
|
rrp_instance->net_handles[iface_no],
|
|
&msg, sizeof (struct message_header));
|
|
qb_loop_timer_add (rrp_instance->poll_handle,
|
|
QB_LOOP_MED,
|
|
rrp_instance->totem_config->rrp_autorecovery_check_timeout*QB_TIME_NS_IN_MSEC,
|
|
(void *)deliver_fn_context,
|
|
timer_function_test_ring_timeout,
|
|
&rrp_instance->timer_active_test_ring_timeout[iface_no]);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* None Replication Implementation
|
|
*/
|
|
|
|
static void none_mcast_recv (
|
|
struct totemrrp_instance *rrp_instance,
|
|
unsigned int iface_no,
|
|
void *context,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
rrp_instance->totemrrp_deliver_fn (
|
|
context,
|
|
msg,
|
|
msg_len);
|
|
}
|
|
|
|
static void none_mcast_flush_send (
|
|
struct totemrrp_instance *instance,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
totemnet_mcast_flush_send (instance->net_handles[0], msg, msg_len);
|
|
}
|
|
|
|
static void none_mcast_noflush_send (
|
|
struct totemrrp_instance *instance,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
totemnet_mcast_noflush_send (instance->net_handles[0], msg, msg_len);
|
|
}
|
|
|
|
static void none_token_recv (
|
|
struct totemrrp_instance *rrp_instance,
|
|
unsigned int iface_no,
|
|
void *context,
|
|
const void *msg,
|
|
unsigned int msg_len,
|
|
unsigned int token_seq)
|
|
{
|
|
rrp_instance->totemrrp_deliver_fn (
|
|
context,
|
|
msg,
|
|
msg_len);
|
|
}
|
|
|
|
static void none_token_send (
|
|
struct totemrrp_instance *instance,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
totemnet_token_send (
|
|
instance->net_handles[0],
|
|
msg, msg_len);
|
|
}
|
|
|
|
static void none_recv_flush (struct totemrrp_instance *instance)
|
|
{
|
|
totemnet_recv_flush (instance->net_handles[0]);
|
|
}
|
|
|
|
static void none_send_flush (struct totemrrp_instance *instance)
|
|
{
|
|
totemnet_send_flush (instance->net_handles[0]);
|
|
}
|
|
|
|
static void none_iface_check (struct totemrrp_instance *instance)
|
|
{
|
|
totemnet_iface_check (instance->net_handles[0]);
|
|
}
|
|
|
|
static void none_processor_count_set (
|
|
struct totemrrp_instance *instance,
|
|
unsigned int processor_count)
|
|
{
|
|
totemnet_processor_count_set (instance->net_handles[0],
|
|
processor_count);
|
|
}
|
|
|
|
static void none_token_target_set (
|
|
struct totemrrp_instance *instance,
|
|
struct totem_ip_address *token_target,
|
|
unsigned int iface_no)
|
|
{
|
|
totemnet_token_target_set (instance->net_handles[0], token_target);
|
|
}
|
|
|
|
static void none_ring_reenable (
|
|
struct totemrrp_instance *instance,
|
|
unsigned int iface_no)
|
|
{
|
|
/*
|
|
* No operation
|
|
*/
|
|
}
|
|
|
|
static int none_mcast_recv_empty (
|
|
struct totemrrp_instance *instance)
|
|
{
|
|
int res;
|
|
|
|
res = totemnet_recv_mcast_empty (instance->net_handles[0]);
|
|
|
|
return (res);
|
|
}
|
|
|
|
static int none_member_add (
|
|
struct totemrrp_instance *instance,
|
|
const struct totem_ip_address *member,
|
|
unsigned int iface_no)
|
|
{
|
|
int res;
|
|
res = totemnet_member_add (instance->net_handles[0], member);
|
|
return (res);
|
|
}
|
|
|
|
static int none_member_remove (
|
|
struct totemrrp_instance *instance,
|
|
const struct totem_ip_address *member,
|
|
unsigned int iface_no)
|
|
{
|
|
int res;
|
|
res = totemnet_member_remove (instance->net_handles[0], member);
|
|
return (res);
|
|
}
|
|
|
|
|
|
/*
|
|
* Passive Replication Implementation
|
|
*/
|
|
void *passive_instance_initialize (
|
|
struct totemrrp_instance *rrp_instance,
|
|
int interface_count)
|
|
{
|
|
struct passive_instance *instance;
|
|
int i;
|
|
|
|
instance = malloc (sizeof (struct passive_instance));
|
|
if (instance == 0) {
|
|
goto error_exit;
|
|
}
|
|
memset (instance, 0, sizeof (struct passive_instance));
|
|
|
|
instance->faulty = malloc (sizeof (int) * interface_count);
|
|
if (instance->faulty == 0) {
|
|
free (instance);
|
|
instance = 0;
|
|
goto error_exit;
|
|
}
|
|
memset (instance->faulty, 0, sizeof (int) * interface_count);
|
|
|
|
for (i = 0; i < interface_count; i++) {
|
|
stats_set_interface_faulty (rrp_instance, i, 0);
|
|
}
|
|
|
|
instance->token_recv_count = malloc (sizeof (int) * interface_count);
|
|
if (instance->token_recv_count == 0) {
|
|
free (instance->faulty);
|
|
free (instance);
|
|
instance = 0;
|
|
goto error_exit;
|
|
}
|
|
memset (instance->token_recv_count, 0, sizeof (int) * interface_count);
|
|
|
|
instance->mcast_recv_count = malloc (sizeof (int) * interface_count);
|
|
if (instance->mcast_recv_count == 0) {
|
|
free (instance->token_recv_count);
|
|
free (instance->faulty);
|
|
free (instance);
|
|
instance = 0;
|
|
goto error_exit;
|
|
}
|
|
memset (instance->mcast_recv_count, 0, sizeof (int) * interface_count);
|
|
|
|
error_exit:
|
|
return ((void *)instance);
|
|
}
|
|
|
|
static void timer_function_passive_token_expired (void *context)
|
|
{
|
|
struct passive_instance *passive_instance = (struct passive_instance *)context;
|
|
struct totemrrp_instance *rrp_instance = passive_instance->rrp_instance;
|
|
|
|
rrp_instance->totemrrp_deliver_fn (
|
|
passive_instance->totemrrp_context,
|
|
passive_instance->token,
|
|
passive_instance->token_len);
|
|
}
|
|
|
|
/* TODO
|
|
static void timer_function_passive_problem_decrementer (void *context)
|
|
{
|
|
// struct passive_instance *passive_instance = (struct passive_instance *)context;
|
|
// struct totemrrp_instance *rrp_instance = passive_instance->rrp_instance;
|
|
|
|
}
|
|
*/
|
|
|
|
|
|
static void passive_timer_expired_token_start (
|
|
struct passive_instance *passive_instance)
|
|
{
|
|
qb_loop_timer_add (
|
|
passive_instance->rrp_instance->poll_handle,
|
|
QB_LOOP_MED,
|
|
passive_instance->rrp_instance->totem_config->rrp_token_expired_timeout*QB_TIME_NS_IN_MSEC,
|
|
(void *)passive_instance,
|
|
timer_function_passive_token_expired,
|
|
&passive_instance->timer_expired_token);
|
|
}
|
|
|
|
static void passive_timer_expired_token_cancel (
|
|
struct passive_instance *passive_instance)
|
|
{
|
|
qb_loop_timer_del (
|
|
passive_instance->rrp_instance->poll_handle,
|
|
passive_instance->timer_expired_token);
|
|
}
|
|
|
|
/*
|
|
static void passive_timer_problem_decrementer_start (
|
|
struct passive_instance *passive_instance)
|
|
{
|
|
qb_loop_timer_add (
|
|
QB_LOOP_MED,
|
|
passive_instance->rrp_instance->poll_handle,
|
|
passive_instance->rrp_instance->totem_config->rrp_problem_count_timeout*QB_TIME_NS_IN_MSEC,
|
|
(void *)passive_instance,
|
|
timer_function_passive_problem_decrementer,
|
|
&passive_instance->timer_problem_decrementer);
|
|
}
|
|
|
|
static void passive_timer_problem_decrementer_cancel (
|
|
struct passive_instance *passive_instance)
|
|
{
|
|
qb_loop_timer_del (
|
|
passive_instance->rrp_instance->poll_handle,
|
|
passive_instance->timer_problem_decrementer);
|
|
}
|
|
*/
|
|
|
|
/*
|
|
* Monitor function implementation from rrp paper.
|
|
* rrp_instance is passive rrp instance, iface_no is interface with received messgae/token and
|
|
* is_token_recv_count is boolean variable which donates if message is token (>1) or regular
|
|
* message (= 0)
|
|
*/
|
|
static void passive_monitor (
|
|
struct totemrrp_instance *rrp_instance,
|
|
unsigned int iface_no,
|
|
int is_token_recv_count)
|
|
{
|
|
struct passive_instance *passive_instance = (struct passive_instance *)rrp_instance->rrp_algo_instance;
|
|
unsigned int *recv_count;
|
|
unsigned int max;
|
|
unsigned int i;
|
|
unsigned int min_all, min_active;
|
|
unsigned int threshold;
|
|
|
|
/*
|
|
* Monitor for failures
|
|
*/
|
|
if (is_token_recv_count) {
|
|
recv_count = passive_instance->token_recv_count;
|
|
threshold = rrp_instance->totem_config->rrp_problem_count_threshold;
|
|
} else {
|
|
recv_count = passive_instance->mcast_recv_count;
|
|
threshold = rrp_instance->totem_config->rrp_problem_count_mcast_threshold;
|
|
}
|
|
|
|
recv_count[iface_no] += 1;
|
|
|
|
max = 0;
|
|
for (i = 0; i < rrp_instance->interface_count; i++) {
|
|
if (max < recv_count[i]) {
|
|
max = recv_count[i];
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Max is larger then threshold -> start adjusting process
|
|
*/
|
|
if (max > PASSIVE_RECV_COUNT_THRESHOLD) {
|
|
min_all = min_active = recv_count[iface_no];
|
|
|
|
for (i = 0; i < rrp_instance->interface_count; i++) {
|
|
if (recv_count[i] < min_all) {
|
|
min_all = recv_count[i];
|
|
}
|
|
|
|
if (passive_instance->faulty[i] == 0 &&
|
|
recv_count[i] < min_active) {
|
|
min_active = recv_count[i];
|
|
}
|
|
}
|
|
|
|
if (min_all > 0) {
|
|
/*
|
|
* There is one or more faulty device with recv_count > 0
|
|
*/
|
|
for (i = 0; i < rrp_instance->interface_count; i++) {
|
|
recv_count[i] -= min_all;
|
|
}
|
|
} else {
|
|
/*
|
|
* No faulty device with recv_count > 0, adjust only active
|
|
* devices
|
|
*/
|
|
for (i = 0; i < rrp_instance->interface_count; i++) {
|
|
if (passive_instance->faulty[i] == 0) {
|
|
recv_count[i] -= min_active;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Find again max
|
|
*/
|
|
max = 0;
|
|
|
|
for (i = 0; i < rrp_instance->interface_count; i++) {
|
|
if (max < recv_count[i]) {
|
|
max = recv_count[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < rrp_instance->interface_count; i++) {
|
|
if ((passive_instance->faulty[i] == 0) &&
|
|
(max - recv_count[i] > threshold)) {
|
|
passive_instance->faulty[i] = 1;
|
|
|
|
qb_loop_timer_add (rrp_instance->poll_handle,
|
|
QB_LOOP_MED,
|
|
rrp_instance->totem_config->rrp_autorecovery_check_timeout*QB_TIME_NS_IN_MSEC,
|
|
rrp_instance->deliver_fn_context[i],
|
|
timer_function_test_ring_timeout,
|
|
&rrp_instance->timer_active_test_ring_timeout[i]);
|
|
|
|
stats_set_interface_faulty (rrp_instance, i, passive_instance->faulty[i]);
|
|
|
|
snprintf (rrp_instance->status[i], STATUS_STR_LEN,
|
|
"Marking ringid %u interface %s FAULTY",
|
|
i,
|
|
totemnet_iface_print (rrp_instance->net_handles[i]));
|
|
log_printf (
|
|
rrp_instance->totemrrp_log_level_error,
|
|
"%s",
|
|
rrp_instance->status[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void passive_mcast_recv (
|
|
struct totemrrp_instance *rrp_instance,
|
|
unsigned int iface_no,
|
|
void *context,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
struct passive_instance *passive_instance = (struct passive_instance *)rrp_instance->rrp_algo_instance;
|
|
|
|
rrp_instance->totemrrp_deliver_fn (
|
|
context,
|
|
msg,
|
|
msg_len);
|
|
|
|
if (rrp_instance->totemrrp_msgs_missing() == 0 &&
|
|
passive_instance->timer_expired_token) {
|
|
/*
|
|
* Delivers the last token
|
|
*/
|
|
rrp_instance->totemrrp_deliver_fn (
|
|
passive_instance->totemrrp_context,
|
|
passive_instance->token,
|
|
passive_instance->token_len);
|
|
passive_timer_expired_token_cancel (passive_instance);
|
|
}
|
|
|
|
passive_monitor (rrp_instance, iface_no, 0);
|
|
}
|
|
|
|
static void passive_mcast_flush_send (
|
|
struct totemrrp_instance *instance,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
struct passive_instance *passive_instance = (struct passive_instance *)instance->rrp_algo_instance;
|
|
int i = 0;
|
|
|
|
do {
|
|
passive_instance->msg_xmit_iface = (passive_instance->msg_xmit_iface + 1) % instance->interface_count;
|
|
i++;
|
|
} while ((i <= instance->interface_count) && (passive_instance->faulty[passive_instance->msg_xmit_iface] == 1));
|
|
|
|
if (i <= instance->interface_count) {
|
|
totemnet_mcast_flush_send (instance->net_handles[passive_instance->msg_xmit_iface], msg, msg_len);
|
|
}
|
|
}
|
|
|
|
static void passive_mcast_noflush_send (
|
|
struct totemrrp_instance *instance,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
struct passive_instance *passive_instance = (struct passive_instance *)instance->rrp_algo_instance;
|
|
int i = 0;
|
|
|
|
do {
|
|
passive_instance->msg_xmit_iface = (passive_instance->msg_xmit_iface + 1) % instance->interface_count;
|
|
i++;
|
|
} while ((i <= instance->interface_count) && (passive_instance->faulty[passive_instance->msg_xmit_iface] == 1));
|
|
|
|
if (i <= instance->interface_count) {
|
|
totemnet_mcast_noflush_send (instance->net_handles[passive_instance->msg_xmit_iface], msg, msg_len);
|
|
}
|
|
}
|
|
|
|
static void passive_token_recv (
|
|
struct totemrrp_instance *rrp_instance,
|
|
unsigned int iface_no,
|
|
void *context,
|
|
const void *msg,
|
|
unsigned int msg_len,
|
|
unsigned int token_seq)
|
|
{
|
|
struct passive_instance *passive_instance = (struct passive_instance *)rrp_instance->rrp_algo_instance;
|
|
|
|
passive_instance->totemrrp_context = context; // this should be in totemrrp_instance ? TODO
|
|
|
|
if (rrp_instance->totemrrp_msgs_missing() == 0) {
|
|
rrp_instance->totemrrp_deliver_fn (
|
|
context,
|
|
msg,
|
|
msg_len);
|
|
} else {
|
|
memcpy (passive_instance->token, msg, msg_len);
|
|
passive_timer_expired_token_start (passive_instance);
|
|
|
|
}
|
|
|
|
passive_monitor (rrp_instance, iface_no, 1);
|
|
}
|
|
|
|
static void passive_token_send (
|
|
struct totemrrp_instance *instance,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
struct passive_instance *passive_instance = (struct passive_instance *)instance->rrp_algo_instance;
|
|
int i = 0;
|
|
|
|
do {
|
|
passive_instance->token_xmit_iface = (passive_instance->token_xmit_iface + 1) % instance->interface_count;
|
|
i++;
|
|
} while ((i <= instance->interface_count) && (passive_instance->faulty[passive_instance->token_xmit_iface] == 1));
|
|
|
|
if (i <= instance->interface_count) {
|
|
totemnet_token_send (
|
|
instance->net_handles[passive_instance->token_xmit_iface],
|
|
msg, msg_len);
|
|
}
|
|
|
|
}
|
|
|
|
static void passive_recv_flush (struct totemrrp_instance *instance)
|
|
{
|
|
struct passive_instance *rrp_algo_instance = (struct passive_instance *)instance->rrp_algo_instance;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
if (rrp_algo_instance->faulty[i] == 0) {
|
|
|
|
totemnet_recv_flush (instance->net_handles[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void passive_send_flush (struct totemrrp_instance *instance)
|
|
{
|
|
struct passive_instance *rrp_algo_instance = (struct passive_instance *)instance->rrp_algo_instance;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
if (rrp_algo_instance->faulty[i] == 0) {
|
|
|
|
totemnet_send_flush (instance->net_handles[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void passive_iface_check (struct totemrrp_instance *instance)
|
|
{
|
|
struct passive_instance *rrp_algo_instance = (struct passive_instance *)instance->rrp_algo_instance;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
if (rrp_algo_instance->faulty[i] == 0) {
|
|
|
|
totemnet_iface_check (instance->net_handles[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void passive_processor_count_set (
|
|
struct totemrrp_instance *instance,
|
|
unsigned int processor_count)
|
|
{
|
|
struct passive_instance *rrp_algo_instance = (struct passive_instance *)instance->rrp_algo_instance;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
if (rrp_algo_instance->faulty[i] == 0) {
|
|
|
|
totemnet_processor_count_set (instance->net_handles[i],
|
|
processor_count);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void passive_token_target_set (
|
|
struct totemrrp_instance *instance,
|
|
struct totem_ip_address *token_target,
|
|
unsigned int iface_no)
|
|
{
|
|
totemnet_token_target_set (instance->net_handles[iface_no], token_target);
|
|
}
|
|
|
|
static int passive_mcast_recv_empty (
|
|
struct totemrrp_instance *instance)
|
|
{
|
|
int res;
|
|
int msgs_emptied = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
res = totemnet_recv_mcast_empty (instance->net_handles[i]);
|
|
if (res == -1) {
|
|
return (-1);
|
|
}
|
|
if (res == 1) {
|
|
msgs_emptied = 1;
|
|
}
|
|
}
|
|
|
|
return (msgs_emptied);
|
|
}
|
|
|
|
static int passive_member_add (
|
|
struct totemrrp_instance *instance,
|
|
const struct totem_ip_address *member,
|
|
unsigned int iface_no)
|
|
{
|
|
int res;
|
|
res = totemnet_member_add (instance->net_handles[iface_no], member);
|
|
return (res);
|
|
}
|
|
|
|
static int passive_member_remove (
|
|
struct totemrrp_instance *instance,
|
|
const struct totem_ip_address *member,
|
|
unsigned int iface_no)
|
|
{
|
|
int res;
|
|
res = totemnet_member_remove (instance->net_handles[iface_no], member);
|
|
return (res);
|
|
}
|
|
|
|
|
|
static void passive_ring_reenable (
|
|
struct totemrrp_instance *instance,
|
|
unsigned int iface_no)
|
|
{
|
|
struct passive_instance *rrp_algo_instance = (struct passive_instance *)instance->rrp_algo_instance;
|
|
int i;
|
|
|
|
memset (rrp_algo_instance->mcast_recv_count, 0, sizeof (unsigned int) *
|
|
instance->interface_count);
|
|
memset (rrp_algo_instance->token_recv_count, 0, sizeof (unsigned int) *
|
|
instance->interface_count);
|
|
|
|
if (iface_no == instance->interface_count) {
|
|
memset (rrp_algo_instance->faulty, 0, sizeof (unsigned int) *
|
|
instance->interface_count);
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
stats_set_interface_faulty (instance, i, 0);
|
|
}
|
|
} else {
|
|
rrp_algo_instance->faulty[iface_no] = 0;
|
|
stats_set_interface_faulty (instance, iface_no, 0);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Active Replication Implementation
|
|
*/
|
|
void *active_instance_initialize (
|
|
struct totemrrp_instance *rrp_instance,
|
|
int interface_count)
|
|
{
|
|
struct active_instance *instance;
|
|
int i;
|
|
|
|
instance = malloc (sizeof (struct active_instance));
|
|
if (instance == 0) {
|
|
goto error_exit;
|
|
}
|
|
memset (instance, 0, sizeof (struct active_instance));
|
|
|
|
instance->faulty = malloc (sizeof (int) * interface_count);
|
|
if (instance->faulty == 0) {
|
|
free (instance);
|
|
instance = 0;
|
|
goto error_exit;
|
|
}
|
|
memset (instance->faulty, 0, sizeof (unsigned int) * interface_count);
|
|
|
|
for (i = 0; i < interface_count; i++) {
|
|
stats_set_interface_faulty (rrp_instance, i, 0);
|
|
}
|
|
|
|
instance->last_token_recv = malloc (sizeof (int) * interface_count);
|
|
if (instance->last_token_recv == 0) {
|
|
free (instance->faulty);
|
|
free (instance);
|
|
instance = 0;
|
|
goto error_exit;
|
|
}
|
|
memset (instance->last_token_recv, 0, sizeof (unsigned int) * interface_count);
|
|
|
|
instance->counter_problems = malloc (sizeof (int) * interface_count);
|
|
if (instance->counter_problems == 0) {
|
|
free (instance->last_token_recv);
|
|
free (instance->faulty);
|
|
free (instance);
|
|
instance = 0;
|
|
goto error_exit;
|
|
}
|
|
memset (instance->counter_problems, 0, sizeof (unsigned int) * interface_count);
|
|
|
|
instance->timer_expired_token = 0;
|
|
|
|
instance->timer_problem_decrementer = 0;
|
|
|
|
instance->rrp_instance = rrp_instance;
|
|
|
|
instance->last_token_seq = ARR_SEQNO_START_TOKEN - 1;
|
|
|
|
error_exit:
|
|
return ((void *)instance);
|
|
}
|
|
static void timer_function_active_problem_decrementer (void *context)
|
|
{
|
|
struct active_instance *active_instance = (struct active_instance *)context;
|
|
struct totemrrp_instance *rrp_instance = active_instance->rrp_instance;
|
|
unsigned int problem_found = 0;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < rrp_instance->interface_count; i++) {
|
|
if (active_instance->counter_problems[i] > 0) {
|
|
problem_found = 1;
|
|
active_instance->counter_problems[i] -= 1;
|
|
if (active_instance->counter_problems[i] == 0) {
|
|
snprintf (rrp_instance->status[i], STATUS_STR_LEN,
|
|
"ring %d active with no faults", i);
|
|
} else {
|
|
snprintf (rrp_instance->status[i], STATUS_STR_LEN,
|
|
"Decrementing problem counter for iface %s to [%d of %d]",
|
|
totemnet_iface_print (rrp_instance->net_handles[i]),
|
|
active_instance->counter_problems[i],
|
|
rrp_instance->totem_config->rrp_problem_count_threshold);
|
|
}
|
|
log_printf (
|
|
rrp_instance->totemrrp_log_level_warning,
|
|
"%s",
|
|
rrp_instance->status[i]);
|
|
}
|
|
}
|
|
if (problem_found) {
|
|
active_timer_problem_decrementer_start (active_instance);
|
|
} else {
|
|
active_instance->timer_problem_decrementer = 0;
|
|
}
|
|
}
|
|
|
|
static void timer_function_active_token_expired (void *context)
|
|
{
|
|
struct active_instance *active_instance = (struct active_instance *)context;
|
|
struct totemrrp_instance *rrp_instance = active_instance->rrp_instance;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < rrp_instance->interface_count; i++) {
|
|
if (active_instance->last_token_recv[i] == 0) {
|
|
active_instance->counter_problems[i] += 1;
|
|
|
|
if (active_instance->timer_problem_decrementer == 0) {
|
|
active_timer_problem_decrementer_start (active_instance);
|
|
}
|
|
snprintf (rrp_instance->status[i], STATUS_STR_LEN,
|
|
"Incrementing problem counter for seqid %d iface %s to [%d of %d]",
|
|
active_instance->last_token_seq,
|
|
totemnet_iface_print (rrp_instance->net_handles[i]),
|
|
active_instance->counter_problems[i],
|
|
rrp_instance->totem_config->rrp_problem_count_threshold);
|
|
log_printf (
|
|
rrp_instance->totemrrp_log_level_warning,
|
|
"%s",
|
|
rrp_instance->status[i]);
|
|
}
|
|
}
|
|
for (i = 0; i < rrp_instance->interface_count; i++) {
|
|
if (active_instance->counter_problems[i] >= rrp_instance->totem_config->rrp_problem_count_threshold &&
|
|
active_instance->faulty[i] == 0) {
|
|
active_instance->faulty[i] = 1;
|
|
|
|
qb_loop_timer_add (rrp_instance->poll_handle,
|
|
QB_LOOP_MED,
|
|
rrp_instance->totem_config->rrp_autorecovery_check_timeout*QB_TIME_NS_IN_MSEC,
|
|
rrp_instance->deliver_fn_context[i],
|
|
timer_function_test_ring_timeout,
|
|
&rrp_instance->timer_active_test_ring_timeout[i]);
|
|
|
|
stats_set_interface_faulty (rrp_instance, i, active_instance->faulty[i]);
|
|
|
|
snprintf (rrp_instance->status[i], STATUS_STR_LEN,
|
|
"Marking seqid %d ringid %u interface %s FAULTY",
|
|
active_instance->last_token_seq,
|
|
i,
|
|
totemnet_iface_print (rrp_instance->net_handles[i]));
|
|
log_printf (
|
|
rrp_instance->totemrrp_log_level_error,
|
|
"%s",
|
|
rrp_instance->status[i]);
|
|
active_timer_problem_decrementer_cancel (active_instance);
|
|
}
|
|
}
|
|
|
|
rrp_instance->totemrrp_deliver_fn (
|
|
active_instance->totemrrp_context,
|
|
active_instance->token,
|
|
active_instance->token_len);
|
|
}
|
|
|
|
static void active_timer_expired_token_start (
|
|
struct active_instance *active_instance)
|
|
{
|
|
qb_loop_timer_add (
|
|
active_instance->rrp_instance->poll_handle,
|
|
QB_LOOP_MED,
|
|
active_instance->rrp_instance->totem_config->rrp_token_expired_timeout*QB_TIME_NS_IN_MSEC,
|
|
(void *)active_instance,
|
|
timer_function_active_token_expired,
|
|
&active_instance->timer_expired_token);
|
|
}
|
|
|
|
static void active_timer_expired_token_cancel (
|
|
struct active_instance *active_instance)
|
|
{
|
|
qb_loop_timer_del (
|
|
active_instance->rrp_instance->poll_handle,
|
|
active_instance->timer_expired_token);
|
|
}
|
|
|
|
static void active_timer_problem_decrementer_start (
|
|
struct active_instance *active_instance)
|
|
{
|
|
qb_loop_timer_add (
|
|
active_instance->rrp_instance->poll_handle,
|
|
QB_LOOP_MED,
|
|
active_instance->rrp_instance->totem_config->rrp_problem_count_timeout*QB_TIME_NS_IN_MSEC,
|
|
(void *)active_instance,
|
|
timer_function_active_problem_decrementer,
|
|
&active_instance->timer_problem_decrementer);
|
|
}
|
|
|
|
static void active_timer_problem_decrementer_cancel (
|
|
struct active_instance *active_instance)
|
|
{
|
|
qb_loop_timer_del (
|
|
active_instance->rrp_instance->poll_handle,
|
|
active_instance->timer_problem_decrementer);
|
|
}
|
|
|
|
|
|
/*
|
|
* active replication
|
|
*/
|
|
static void active_mcast_recv (
|
|
struct totemrrp_instance *instance,
|
|
unsigned int iface_no,
|
|
void *context,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
instance->totemrrp_deliver_fn (
|
|
context,
|
|
msg,
|
|
msg_len);
|
|
}
|
|
|
|
static void active_mcast_flush_send (
|
|
struct totemrrp_instance *instance,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
int i;
|
|
struct active_instance *rrp_algo_instance = (struct active_instance *)instance->rrp_algo_instance;
|
|
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
if (rrp_algo_instance->faulty[i] == 0) {
|
|
totemnet_mcast_flush_send (instance->net_handles[i], msg, msg_len);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void active_mcast_noflush_send (
|
|
struct totemrrp_instance *instance,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
int i;
|
|
struct active_instance *rrp_algo_instance = (struct active_instance *)instance->rrp_algo_instance;
|
|
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
if (rrp_algo_instance->faulty[i] == 0) {
|
|
totemnet_mcast_noflush_send (instance->net_handles[i], msg, msg_len);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void active_token_recv (
|
|
struct totemrrp_instance *rrp_instance,
|
|
unsigned int iface_no,
|
|
void *context,
|
|
const void *msg,
|
|
unsigned int msg_len,
|
|
unsigned int token_seq)
|
|
{
|
|
int i;
|
|
struct active_instance *active_instance = (struct active_instance *)rrp_instance->rrp_algo_instance;
|
|
|
|
active_instance->totemrrp_context = context;
|
|
if (sq_lt_compare (active_instance->last_token_seq, token_seq)) {
|
|
memcpy (active_instance->token, msg, msg_len);
|
|
active_instance->token_len = msg_len;
|
|
for (i = 0; i < rrp_instance->interface_count; i++) {
|
|
active_instance->last_token_recv[i] = 0;
|
|
}
|
|
|
|
active_instance->last_token_recv[iface_no] = 1;
|
|
active_timer_expired_token_start (active_instance);
|
|
}
|
|
|
|
/*
|
|
* This doesn't follow spec because the spec assumes we will know
|
|
* when token resets occur.
|
|
*/
|
|
active_instance->last_token_seq = token_seq;
|
|
|
|
if (token_seq == active_instance->last_token_seq) {
|
|
active_instance->last_token_recv[iface_no] = 1;
|
|
for (i = 0; i < rrp_instance->interface_count; i++) {
|
|
if ((active_instance->last_token_recv[i] == 0) &&
|
|
active_instance->faulty[i] == 0) {
|
|
return; /* don't deliver token */
|
|
}
|
|
}
|
|
active_timer_expired_token_cancel (active_instance);
|
|
|
|
rrp_instance->totemrrp_deliver_fn (
|
|
context,
|
|
msg,
|
|
msg_len);
|
|
}
|
|
}
|
|
|
|
static void active_token_send (
|
|
struct totemrrp_instance *instance,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
struct active_instance *rrp_algo_instance = (struct active_instance *)instance->rrp_algo_instance;
|
|
int i;
|
|
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
if (rrp_algo_instance->faulty[i] == 0) {
|
|
totemnet_token_send (
|
|
instance->net_handles[i],
|
|
msg, msg_len);
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
static void active_recv_flush (struct totemrrp_instance *instance)
|
|
{
|
|
struct active_instance *rrp_algo_instance = (struct active_instance *)instance->rrp_algo_instance;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
if (rrp_algo_instance->faulty[i] == 0) {
|
|
|
|
totemnet_recv_flush (instance->net_handles[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void active_send_flush (struct totemrrp_instance *instance)
|
|
{
|
|
struct active_instance *rrp_algo_instance = (struct active_instance *)instance->rrp_algo_instance;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
if (rrp_algo_instance->faulty[i] == 0) {
|
|
|
|
totemnet_send_flush (instance->net_handles[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int active_member_add (
|
|
struct totemrrp_instance *instance,
|
|
const struct totem_ip_address *member,
|
|
unsigned int iface_no)
|
|
{
|
|
int res;
|
|
res = totemnet_member_add (instance->net_handles[iface_no], member);
|
|
return (res);
|
|
}
|
|
|
|
static int active_member_remove (
|
|
struct totemrrp_instance *instance,
|
|
const struct totem_ip_address *member,
|
|
unsigned int iface_no)
|
|
{
|
|
int res;
|
|
res = totemnet_member_remove (instance->net_handles[iface_no], member);
|
|
return (res);
|
|
}
|
|
|
|
static void active_iface_check (struct totemrrp_instance *instance)
|
|
{
|
|
struct active_instance *rrp_algo_instance = (struct active_instance *)instance->rrp_algo_instance;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
if (rrp_algo_instance->faulty[i] == 0) {
|
|
|
|
totemnet_iface_check (instance->net_handles[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void active_processor_count_set (
|
|
struct totemrrp_instance *instance,
|
|
unsigned int processor_count)
|
|
{
|
|
struct active_instance *rrp_algo_instance = (struct active_instance *)instance->rrp_algo_instance;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
if (rrp_algo_instance->faulty[i] == 0) {
|
|
|
|
totemnet_processor_count_set (instance->net_handles[i],
|
|
processor_count);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void active_token_target_set (
|
|
struct totemrrp_instance *instance,
|
|
struct totem_ip_address *token_target,
|
|
unsigned int iface_no)
|
|
{
|
|
totemnet_token_target_set (instance->net_handles[iface_no], token_target);
|
|
}
|
|
|
|
static int active_mcast_recv_empty (
|
|
struct totemrrp_instance *instance)
|
|
{
|
|
int res;
|
|
int msgs_emptied = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
res = totemnet_recv_mcast_empty (instance->net_handles[i]);
|
|
if (res == -1) {
|
|
return (-1);
|
|
}
|
|
if (res == 1) {
|
|
msgs_emptied = 1;
|
|
}
|
|
}
|
|
|
|
return (msgs_emptied);
|
|
}
|
|
|
|
static void active_ring_reenable (
|
|
struct totemrrp_instance *instance,
|
|
unsigned int iface_no)
|
|
{
|
|
struct active_instance *rrp_algo_instance = (struct active_instance *)instance->rrp_algo_instance;
|
|
int i;
|
|
|
|
if (iface_no == instance->interface_count) {
|
|
memset (rrp_algo_instance->last_token_recv, 0, sizeof (unsigned int) *
|
|
instance->interface_count);
|
|
memset (rrp_algo_instance->faulty, 0, sizeof (unsigned int) *
|
|
instance->interface_count);
|
|
memset (rrp_algo_instance->counter_problems, 0, sizeof (unsigned int) *
|
|
instance->interface_count);
|
|
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
stats_set_interface_faulty (instance, i, 0);
|
|
}
|
|
} else {
|
|
rrp_algo_instance->last_token_recv[iface_no] = 0;
|
|
rrp_algo_instance->faulty[iface_no] = 0;
|
|
rrp_algo_instance->counter_problems[iface_no] = 0;
|
|
|
|
stats_set_interface_faulty (instance, iface_no, 0);
|
|
}
|
|
}
|
|
|
|
static void totemrrp_instance_initialize (struct totemrrp_instance *instance)
|
|
{
|
|
memset (instance, 0, sizeof (struct totemrrp_instance));
|
|
}
|
|
|
|
static int totemrrp_algorithm_set (
|
|
struct totem_config *totem_config,
|
|
struct totemrrp_instance *instance)
|
|
{
|
|
unsigned int res = -1;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < RRP_ALGOS_COUNT; i++) {
|
|
if (strcmp (totem_config->rrp_mode, rrp_algos[i]->name) == 0) {
|
|
instance->rrp_algo = rrp_algos[i];
|
|
if (rrp_algos[i]->initialize) {
|
|
instance->rrp_algo_instance = rrp_algos[i]->initialize (
|
|
instance,
|
|
totem_config->interface_count);
|
|
}
|
|
res = 0;
|
|
break;
|
|
}
|
|
}
|
|
for (i = 0; i < totem_config->interface_count; i++) {
|
|
instance->status[i] = malloc (STATUS_STR_LEN+1);
|
|
snprintf (instance->status[i], STATUS_STR_LEN,
|
|
"ring %d active with no faults", i);
|
|
}
|
|
return (res);
|
|
}
|
|
|
|
void rrp_deliver_fn (
|
|
void *context,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
unsigned int token_seqid;
|
|
unsigned int token_is;
|
|
|
|
struct deliver_fn_context *deliver_fn_context = (struct deliver_fn_context *)context;
|
|
struct totemrrp_instance *rrp_instance = deliver_fn_context->instance;
|
|
const struct message_header *hdr = msg;
|
|
struct message_header tmp_msg, activate_msg;
|
|
|
|
memset(&tmp_msg, 0, sizeof(struct message_header));
|
|
memset(&activate_msg, 0, sizeof(struct message_header));
|
|
|
|
rrp_instance->totemrrp_token_seqid_get (
|
|
msg,
|
|
&token_seqid,
|
|
&token_is);
|
|
|
|
if (hdr->type == MESSAGE_TYPE_RING_TEST_ACTIVE) {
|
|
log_printf (
|
|
rrp_instance->totemrrp_log_level_debug,
|
|
"received message requesting test of ring now active");
|
|
|
|
if (hdr->endian_detector != ENDIAN_LOCAL) {
|
|
test_active_msg_endian_convert(hdr, &tmp_msg);
|
|
hdr = &tmp_msg;
|
|
}
|
|
|
|
if (hdr->nodeid_activator == rrp_instance->my_nodeid) {
|
|
/*
|
|
* Send an activate message
|
|
*/
|
|
activate_msg.type = MESSAGE_TYPE_RING_TEST_ACTIVATE;
|
|
activate_msg.endian_detector = ENDIAN_LOCAL;
|
|
activate_msg.ring_number = hdr->ring_number;
|
|
activate_msg.nodeid_activator = rrp_instance->my_nodeid;
|
|
totemnet_token_send (
|
|
rrp_instance->net_handles[deliver_fn_context->iface_no],
|
|
&activate_msg, sizeof (struct message_header));
|
|
} else {
|
|
/*
|
|
* Send a ring test message
|
|
*/
|
|
totemnet_token_send (
|
|
rrp_instance->net_handles[deliver_fn_context->iface_no],
|
|
msg, msg_len);
|
|
}
|
|
} else
|
|
if (hdr->type == MESSAGE_TYPE_RING_TEST_ACTIVATE) {
|
|
log_printf (
|
|
rrp_instance->totemrrp_log_level_notice,
|
|
"Automatically recovered ring %d", hdr->ring_number);
|
|
|
|
if (hdr->endian_detector != ENDIAN_LOCAL) {
|
|
test_active_msg_endian_convert(hdr, &tmp_msg);
|
|
hdr = &tmp_msg;
|
|
}
|
|
|
|
totemrrp_ring_reenable (rrp_instance, deliver_fn_context->iface_no);
|
|
if (hdr->nodeid_activator != rrp_instance->my_nodeid) {
|
|
totemnet_token_send (
|
|
rrp_instance->net_handles[deliver_fn_context->iface_no],
|
|
msg, msg_len);
|
|
}
|
|
} else
|
|
if (token_is) {
|
|
/*
|
|
* Deliver to the token receiver for this rrp algorithm
|
|
*/
|
|
rrp_instance->rrp_algo->token_recv (
|
|
rrp_instance,
|
|
deliver_fn_context->iface_no,
|
|
deliver_fn_context->context,
|
|
msg,
|
|
msg_len,
|
|
token_seqid);
|
|
} else {
|
|
/*
|
|
* Deliver to the mcast receiver for this rrp algorithm
|
|
*/
|
|
rrp_instance->rrp_algo->mcast_recv (
|
|
rrp_instance,
|
|
deliver_fn_context->iface_no,
|
|
deliver_fn_context->context,
|
|
msg,
|
|
msg_len);
|
|
}
|
|
}
|
|
|
|
void rrp_iface_change_fn (
|
|
void *context,
|
|
const struct totem_ip_address *iface_addr)
|
|
{
|
|
struct deliver_fn_context *deliver_fn_context = (struct deliver_fn_context *)context;
|
|
|
|
deliver_fn_context->instance->my_nodeid = iface_addr->nodeid;
|
|
deliver_fn_context->instance->totemrrp_iface_change_fn (
|
|
deliver_fn_context->context,
|
|
iface_addr,
|
|
deliver_fn_context->iface_no);
|
|
}
|
|
|
|
int totemrrp_finalize (
|
|
void *rrp_context)
|
|
{
|
|
struct totemrrp_instance *instance = (struct totemrrp_instance *)rrp_context;
|
|
int i;
|
|
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
totemnet_finalize (instance->net_handles[i]);
|
|
}
|
|
free (instance->net_handles);
|
|
free (instance);
|
|
return (0);
|
|
}
|
|
|
|
static void rrp_target_set_completed (void *context)
|
|
{
|
|
struct deliver_fn_context *deliver_fn_context = (struct deliver_fn_context *)context;
|
|
|
|
deliver_fn_context->instance->totemrrp_target_set_completed (deliver_fn_context->context);
|
|
}
|
|
|
|
/*
|
|
* Totem Redundant Ring interface
|
|
* depends on poll abstraction, POSIX, IPV4
|
|
*/
|
|
|
|
/*
|
|
* Create an instance
|
|
*/
|
|
int totemrrp_initialize (
|
|
qb_loop_t *poll_handle,
|
|
void **rrp_context,
|
|
struct totem_config *totem_config,
|
|
totemsrp_stats_t *stats,
|
|
void *context,
|
|
|
|
void (*deliver_fn) (
|
|
void *context,
|
|
const void *msg,
|
|
unsigned int msg_len),
|
|
|
|
void (*iface_change_fn) (
|
|
void *context,
|
|
const struct totem_ip_address *iface_addr,
|
|
unsigned int iface_no),
|
|
|
|
void (*token_seqid_get) (
|
|
const void *msg,
|
|
unsigned int *seqid,
|
|
unsigned int *token_is),
|
|
|
|
unsigned int (*msgs_missing) (void),
|
|
|
|
void (*target_set_completed) (void *context))
|
|
{
|
|
struct totemrrp_instance *instance;
|
|
unsigned int res;
|
|
int i;
|
|
|
|
instance = malloc (sizeof (struct totemrrp_instance));
|
|
if (instance == 0) {
|
|
return (-1);
|
|
}
|
|
|
|
totemrrp_instance_initialize (instance);
|
|
|
|
instance->totem_config = totem_config;
|
|
stats->rrp = &instance->stats;
|
|
instance->stats.interface_count = totem_config->interface_count;
|
|
instance->stats.faulty = calloc(instance->stats.interface_count, sizeof(uint8_t));
|
|
|
|
res = totemrrp_algorithm_set (
|
|
instance->totem_config,
|
|
instance);
|
|
if (res == -1) {
|
|
goto error_destroy;
|
|
}
|
|
|
|
/*
|
|
* Configure logging
|
|
*/
|
|
instance->totemrrp_log_level_security = totem_config->totem_logging_configuration.log_level_security;
|
|
instance->totemrrp_log_level_error = totem_config->totem_logging_configuration.log_level_error;
|
|
instance->totemrrp_log_level_warning = totem_config->totem_logging_configuration.log_level_warning;
|
|
instance->totemrrp_log_level_notice = totem_config->totem_logging_configuration.log_level_notice;
|
|
instance->totemrrp_log_level_debug = totem_config->totem_logging_configuration.log_level_debug;
|
|
instance->totemrrp_subsys_id = totem_config->totem_logging_configuration.log_subsys_id;
|
|
instance->totemrrp_log_printf = totem_config->totem_logging_configuration.log_printf;
|
|
|
|
instance->interfaces = totem_config->interfaces;
|
|
|
|
instance->poll_handle = poll_handle;
|
|
|
|
instance->totemrrp_deliver_fn = deliver_fn;
|
|
|
|
instance->totemrrp_iface_change_fn = iface_change_fn;
|
|
|
|
instance->totemrrp_token_seqid_get = token_seqid_get;
|
|
|
|
instance->totemrrp_target_set_completed = target_set_completed;
|
|
|
|
instance->totemrrp_msgs_missing = msgs_missing;
|
|
|
|
instance->interface_count = totem_config->interface_count;
|
|
|
|
instance->net_handles = malloc (sizeof (void *) * totem_config->interface_count);
|
|
|
|
instance->context = context;
|
|
|
|
instance->poll_handle = poll_handle;
|
|
|
|
|
|
for (i = 0; i < totem_config->interface_count; i++) {
|
|
struct deliver_fn_context *deliver_fn_context;
|
|
|
|
deliver_fn_context = malloc (sizeof (struct deliver_fn_context));
|
|
assert (deliver_fn_context);
|
|
deliver_fn_context->instance = instance;
|
|
deliver_fn_context->context = context;
|
|
deliver_fn_context->iface_no = i;
|
|
instance->deliver_fn_context[i] = (void *)deliver_fn_context;
|
|
|
|
totemnet_initialize (
|
|
poll_handle,
|
|
&instance->net_handles[i],
|
|
totem_config,
|
|
stats,
|
|
i,
|
|
(void *)deliver_fn_context,
|
|
rrp_deliver_fn,
|
|
rrp_iface_change_fn,
|
|
rrp_target_set_completed);
|
|
|
|
totemnet_net_mtu_adjust (instance->net_handles[i], totem_config);
|
|
}
|
|
|
|
*rrp_context = instance;
|
|
return (0);
|
|
|
|
error_destroy:
|
|
free (instance);
|
|
return (res);
|
|
}
|
|
|
|
void *totemrrp_buffer_alloc (void *rrp_context)
|
|
{
|
|
struct totemrrp_instance *instance = rrp_context;
|
|
assert (instance != NULL);
|
|
return totemnet_buffer_alloc (instance->net_handles[0]);
|
|
}
|
|
|
|
void totemrrp_buffer_release (void *rrp_context, void *ptr)
|
|
{
|
|
struct totemrrp_instance *instance = rrp_context;
|
|
assert (instance != NULL);
|
|
totemnet_buffer_release (instance->net_handles[0], ptr);
|
|
}
|
|
|
|
int totemrrp_processor_count_set (
|
|
void *rrp_context,
|
|
unsigned int processor_count)
|
|
{
|
|
struct totemrrp_instance *instance = (struct totemrrp_instance *)rrp_context;
|
|
instance->rrp_algo->processor_count_set (instance, processor_count);
|
|
|
|
instance->processor_count = processor_count;
|
|
|
|
return (0);
|
|
}
|
|
|
|
int totemrrp_token_target_set (
|
|
void *rrp_context,
|
|
struct totem_ip_address *addr,
|
|
unsigned int iface_no)
|
|
{
|
|
struct totemrrp_instance *instance = (struct totemrrp_instance *)rrp_context;
|
|
instance->rrp_algo->token_target_set (instance, addr, iface_no);
|
|
|
|
return (0);
|
|
}
|
|
int totemrrp_recv_flush (void *rrp_context)
|
|
{
|
|
struct totemrrp_instance *instance = (struct totemrrp_instance *)rrp_context;
|
|
|
|
instance->rrp_algo->recv_flush (instance);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int totemrrp_send_flush (void *rrp_context)
|
|
{
|
|
struct totemrrp_instance *instance = (struct totemrrp_instance *)rrp_context;
|
|
instance->rrp_algo->send_flush (instance);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int totemrrp_token_send (
|
|
void *rrp_context,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
struct totemrrp_instance *instance = (struct totemrrp_instance *)rrp_context;
|
|
instance->rrp_algo->token_send (instance, msg, msg_len);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int totemrrp_mcast_flush_send (
|
|
void *rrp_context,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
struct totemrrp_instance *instance = (struct totemrrp_instance *)rrp_context;
|
|
int res = 0;
|
|
|
|
// TODO this needs to return the result
|
|
instance->rrp_algo->mcast_flush_send (instance, msg, msg_len);
|
|
|
|
return (res);
|
|
}
|
|
|
|
int totemrrp_mcast_noflush_send (
|
|
void *rrp_context,
|
|
const void *msg,
|
|
unsigned int msg_len)
|
|
{
|
|
struct totemrrp_instance *instance = (struct totemrrp_instance *)rrp_context;
|
|
/*
|
|
* merge detects go out through mcast_flush_send so it is safe to
|
|
* flush these messages if we are only one processor. This avoids
|
|
* an encryption/hmac and decryption/hmac
|
|
*/
|
|
if (instance->processor_count > 1) {
|
|
|
|
// TODO this needs to return the result
|
|
instance->rrp_algo->mcast_noflush_send (instance, msg, msg_len);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
int totemrrp_iface_check (void *rrp_context)
|
|
{
|
|
struct totemrrp_instance *instance = (struct totemrrp_instance *)rrp_context;
|
|
|
|
instance->rrp_algo->iface_check (instance);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int totemrrp_ifaces_get (
|
|
void *rrp_context,
|
|
char ***status,
|
|
unsigned int *iface_count)
|
|
{
|
|
struct totemrrp_instance *instance = (struct totemrrp_instance *)rrp_context;
|
|
*status = instance->status;
|
|
|
|
if (iface_count) {
|
|
*iface_count = instance->interface_count;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
int totemrrp_crypto_set (
|
|
void *rrp_context,
|
|
const char *cipher_type,
|
|
const char *hash_type)
|
|
{
|
|
struct totemrrp_instance *instance = (struct totemrrp_instance *)rrp_context;
|
|
int res;
|
|
|
|
res = totemnet_crypto_set(instance->net_handles[0], cipher_type, hash_type);
|
|
|
|
return (res);
|
|
}
|
|
|
|
|
|
/*
|
|
* iface_no indicates the interface number [0, ..., interface_count-1] of the
|
|
* specific ring which will be reenabled. We specify iface_no == interface_count
|
|
* means reenabling all the rings.
|
|
*/
|
|
int totemrrp_ring_reenable (
|
|
void *rrp_context,
|
|
unsigned int iface_no)
|
|
{
|
|
struct totemrrp_instance *instance = (struct totemrrp_instance *)rrp_context;
|
|
int res = 0;
|
|
unsigned int i;
|
|
|
|
instance->rrp_algo->ring_reenable (instance, iface_no);
|
|
|
|
if (iface_no == instance->interface_count) {
|
|
for (i = 0; i < instance->interface_count; i++) {
|
|
snprintf (instance->status[i], STATUS_STR_LEN,
|
|
"ring %d active with no faults", i);
|
|
}
|
|
} else {
|
|
snprintf (instance->status[iface_no], STATUS_STR_LEN,
|
|
"ring %d active with no faults", iface_no);
|
|
}
|
|
|
|
return (res);
|
|
}
|
|
|
|
extern int totemrrp_mcast_recv_empty (
|
|
void *rrp_context)
|
|
{
|
|
struct totemrrp_instance *instance = (struct totemrrp_instance *)rrp_context;
|
|
int res;
|
|
|
|
res = instance->rrp_algo->mcast_recv_empty (instance);
|
|
|
|
return (res);
|
|
}
|
|
|
|
int totemrrp_member_add (
|
|
void *rrp_context,
|
|
const struct totem_ip_address *member,
|
|
int iface_no)
|
|
{
|
|
struct totemrrp_instance *instance = (struct totemrrp_instance *)rrp_context;
|
|
int res;
|
|
|
|
res = instance->rrp_algo->member_add (instance, member, iface_no);
|
|
|
|
return (res);
|
|
}
|
|
|
|
int totemrrp_member_remove (
|
|
void *rrp_context,
|
|
const struct totem_ip_address *member,
|
|
int iface_no)
|
|
{
|
|
struct totemrrp_instance *instance = (struct totemrrp_instance *)rrp_context;
|
|
int res;
|
|
|
|
res = instance->rrp_algo->member_remove (instance, member, iface_no);
|
|
|
|
return (res);
|
|
}
|