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/*******************************************************************************
Implementation of Cisco Specific OUI for vdptool
Copyright (c) 2012-2014 by Cisco Systems, Inc.
Author(s): Padmanabhan Krishnan <padkrish at cisco dot com>
This program is free software; you can redistribute it and/or modify it
under the terms and conditions of the GNU General Public License,
version 2, as published by the Free Software Foundation.
This program is distributed in the hope 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.,
51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
The full GNU General Public License is included in this distribution in
the file called "COPYING".
*******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "lldp_util.h"
#include "vdp_cisco.h"
bool cisco_oui_encode_hndlr(char *dst, char *src, size_t len)
{
char *src_temp = strdup(src);
char *key, *data;
bool flag = false;
if (!src_temp)
return false;
key = src_temp;
data = strchr(key, '=');
if (!data) {
free(src_temp);
return false;
}
*data = '\0';
data++;
if ((!strcmp(key, CISCO_OUI_NAME_ARG_STR)) ||
(!strcmp(key, CISCO_OUI_L3V4ADDR_ARG_STR)) ||
(!strcmp(key, CISCO_OUI_NAME_UUID_ARG_STR))) {
snprintf(dst, MAX_OUI_DATA_LEN - len, "%02x%s%04x%s",
(unsigned int)strlen(key), key,
(unsigned int)strlen(data), data);
flag = true;
} else
printf("Incorrect Cisco OUI %s\n", key);
free(src_temp);
return flag;
}
void cisco_oui_print_decode_hndlr(char *token)
{
struct in_addr vm_inet;
char *v4_addr_str;
unsigned long vm_ip_addr;
int offset = 0, len;
u16 data_len;
u8 key_len;
enum oui_key_arg oui_argtype;
if (token == NULL)
return;
len = strlen(token);
while (offset < len) {
hexstr2bin(token, &key_len, sizeof(key_len));
token += 2;
offset += 2;
oui_argtype = get_oui_key(token, key_len);
token += key_len;
offset += key_len;
hexstr2bin(token, (u8 *)&data_len, sizeof(data_len));
data_len = htons(data_len);
token += 4;
offset += 4;
if ((offset + data_len) > len)
return;
switch (oui_argtype) {
case CISCO_OUI_NAME_ARG:
printf("\t%s", "VM Name");
printf(" = %.*s\n", data_len, token);
break;
case CISCO_OUI_NAME_UUID_ARG:
printf("\t%s", "VM UUID");
printf(" = %.*s\n", data_len, token);
break;
case CISCO_OUI_L3V4ADDR_ARG:
v4_addr_str = calloc(data_len, sizeof(char));
if (!v4_addr_str)
return;
strncpy(v4_addr_str, token, data_len);
vm_ip_addr = strtoul(v4_addr_str, NULL, 10);
vm_inet.s_addr = vm_ip_addr;
printf("\t%s", "VM IP Address");
printf(" = %s\n", inet_ntoa(vm_inet));
free(v4_addr_str);
break;
default:
break;
}
token += data_len;
offset += data_len;
}
}
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