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/*
*
* Copyright 2014-present Facebook. All Rights Reserved.
*
* This file contains code to support IPMI2.0 Specificaton available @
* http://www.intel.com/content/www/us/en/servers/ipmi/ipmi-specifications.html
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "ipmi.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <syslog.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#define MAX_IPMI_RES_LEN 100
/*
* Function to handle IPMI messages
*/
void
lib_ipmi_handle(unsigned char *request, unsigned char req_len,
unsigned char *response, unsigned char *res_len) {
int s, t, len;
struct sockaddr_un remote;
struct timeval tv;
// TODO: Need to update to reuse the socket instead of creating new
if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
#ifdef DEBUG
syslog(LOG_WARNING, "lib_ipmi_handle: socket() failed\n");
#endif
return;
}
// setup timeout for receving on socket
tv.tv_sec = TIMEOUT_IPMI + 1;
tv.tv_usec = 0;
setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv,sizeof(struct timeval));
remote.sun_family = AF_UNIX;
strcpy(remote.sun_path, SOCK_PATH_IPMI);
len = strlen(remote.sun_path) + sizeof(remote.sun_family);
if (connect(s, (struct sockaddr *)&remote, len) == -1) {
#ifdef DEBUG
syslog(LOG_WARNING, "lib_ipmi_handle: connect() failed\n");
#endif
return;
}
if (send(s, request, req_len, 0) == -1) {
#ifdef DEBUG
syslog(LOG_WARNING, "lib_ipmi_handle: send() failed\n");
#endif
return;
}
if ((t=recv(s, response, MAX_IPMI_RES_LEN, 0)) > 0) {
*res_len = t;
} else {
if (t < 0) {
#ifdef DEBUG
syslog(LOG_WARNING, "lib_ipmi_handle: recv() failed\n");
#endif
} else {
printf("Server closed connection");
}
return;
}
close(s);
return;
}
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