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evsverify.c
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/*
* Copyright (c) 2004 MontaVista Software, Inc.
* Copyright (c) 2006-2007, 2009 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Steven Dake (sdake@redhat.com)
*
* This software licensed under BSD license, the text of which follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the MontaVista Software, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <errno.h>
#include <string.h>
#include <corosync/corotypes.h>
#include <corosync/evs.h>
#include "../exec/crypto.h"
const char *delivery_string;
struct my_msg {
unsigned int msg_size;
unsigned char sha1[20];
unsigned char buffer[0];
};
static int deliveries = 0;
static void evs_deliver_fn (
unsigned int nodeid,
const void *m,
size_t msg_len)
{
const struct my_msg *msg2 = m;
unsigned char sha1_compare[20];
hash_state sha1_hash;
unsigned int i;
printf ("API '%s' msg '%s'\n", delivery_string, msg2->buffer);
sha1_init (&sha1_hash);
sha1_process (&sha1_hash, msg2->buffer, msg2->msg_size);
sha1_done (&sha1_hash, sha1_compare);
printf ("SIZE %d HASH: ", msg2->msg_size);
for (i = 0; i < 20; i++) {
printf ("%x", sha1_compare[i]);
}
printf ("\n");
if (memcmp (sha1_compare, msg2->sha1, 20) != 0) {
printf ("incorrect hash\n");
exit (1);
}
deliveries++;
}
static void evs_confchg_fn (
unsigned int *member_list, size_t member_list_entries,
unsigned int *left_list, size_t left_list_entries,
unsigned int *joined_list, size_t joined_list_entries)
{
int i;
printf ("CONFIGURATION CHANGE\n");
printf ("--------------------\n");
printf ("New configuration\n");
for (i = 0; i < member_list_entries; i++) {
printf ("%x\n", member_list[i]);
}
printf ("Members Left:\n");
for (i = 0; i < left_list_entries; i++) {
printf ("%x\n", left_list[i]);
}
printf ("Members Joined:\n");
for (i = 0; i < joined_list_entries; i++) {
printf ("%x\n", joined_list[i]);
}
}
static evs_callbacks_t callbacks = {
evs_deliver_fn,
evs_confchg_fn
};
struct evs_group groups[3] = {
{ "key1" },
{ "key2" },
{ "key3" }
};
static unsigned char buffer[200000];
int main (void)
{
evs_handle_t handle;
cs_error_t result;
unsigned int i = 0, j;
int fd;
unsigned int member_list[32];
unsigned int local_nodeid;
size_t member_list_entries = 32;
struct my_msg msg;
hash_state sha1_hash;
struct iovec iov[2];
result = evs_initialize (&handle, &callbacks);
if (result != CS_OK) {
printf ("Couldn't initialize EVS service %d\n", result);
exit (0);
}
result = evs_membership_get (handle, &local_nodeid,
member_list, &member_list_entries);
printf ("Current membership from evs_membership_get entries %lu\n",
(unsigned long int) member_list_entries);
for (i = 0; i < member_list_entries; i++) {
printf ("member [%d] is %x\n", i, member_list[i]);
}
printf ("local processor from evs_membership_get %x\n", local_nodeid);
printf ("Init result %d\n", result);
result = evs_join (handle, groups, 3);
printf ("Join result %d\n", result);
result = evs_leave (handle, &groups[0], 1);
printf ("Leave result %d\n", result);
delivery_string = "evs_mcast_joined";
iov[0].iov_base = &msg;
iov[0].iov_len = sizeof (struct my_msg);
iov[1].iov_base = buffer;
/*
* Demonstrate evs_mcast_joined
*/
for (i = 0; i < 1000000000; i++) {
msg.msg_size = 100 + rand() % 100000;
iov[1].iov_len = msg.msg_size;
for (j = 0; j < msg.msg_size; j++) {
buffer[j] = j;
}
sprintf ((char *)buffer,
"evs_mcast_joined: This is message %12d", i);
sha1_init (&sha1_hash);
sha1_process (&sha1_hash, buffer, msg.msg_size);
sha1_done (&sha1_hash, msg.sha1);
try_again_one:
result = evs_mcast_joined (handle, EVS_TYPE_AGREED,
iov, 2);
if (result == CS_ERR_TRY_AGAIN) {
goto try_again_one;
}
result = evs_dispatch (handle, CS_DISPATCH_ALL);
}
evs_fd_get (handle, &fd);
evs_finalize (handle);
return (0);
}

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