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/*
* Copyright (C) 2004, 2005 Mike Wray <mike.wray@hp.com>
*
* 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.,
* 59 Temple Place, suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef _VNET_VARP_UTIL_H
#define _VNET_VARP_UTIL_H
#include "hash_table.h"
/** Size of a string buffer to store a varp address. */
#define VARP_ADDR_BUF 56
/** Size of a string buffer to store a vnet id. */
#define VNET_ID_BUF 56
#ifndef NIPQUAD
#define NIPQUAD(addr) \
((unsigned char *)&addr)[0], \
((unsigned char *)&addr)[1], \
((unsigned char *)&addr)[2], \
((unsigned char *)&addr)[3]
#endif
#ifndef NIP6
#define NIP6(addr) \
ntohs((addr).s6_addr16[0]), \
ntohs((addr).s6_addr16[1]), \
ntohs((addr).s6_addr16[2]), \
ntohs((addr).s6_addr16[3]), \
ntohs((addr).s6_addr16[4]), \
ntohs((addr).s6_addr16[5]), \
ntohs((addr).s6_addr16[6]), \
ntohs((addr).s6_addr16[7])
#endif
static inline const char *VarpAddr_ntoa(VarpAddr *addr, char buf[VARP_ADDR_BUF])
{
switch(addr->family){
default:
case AF_INET:
sprintf(buf, "%u.%u.%u.%u",
NIPQUAD(addr->u.ip4));
break;
case AF_INET6:
sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x",
NIP6(addr->u.ip6));
break;
}
return buf;
}
static inline const char *VnetId_ntoa(VnetId *vnet, char buf[VNET_ID_BUF])
{
sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x",
ntohs(vnet->u.vnet16[0]), \
ntohs(vnet->u.vnet16[1]), \
ntohs(vnet->u.vnet16[2]), \
ntohs(vnet->u.vnet16[3]), \
ntohs(vnet->u.vnet16[4]), \
ntohs(vnet->u.vnet16[5]), \
ntohs(vnet->u.vnet16[6]), \
ntohs(vnet->u.vnet16[7]));
return buf;
}
extern int VnetId_aton(const char *s, VnetId *vnet);
/** Convert an unsigned in host order to a vnet id.
*/
static inline struct VnetId toVnetId(uint32_t vnetid){
struct VnetId vnet = {};
vnet.u.vnet32[VNETID_SIZE32 - 1] = htonl(vnetid);
return vnet;
}
static inline int VnetId_eq(VnetId *id1, VnetId *id2){
return memcmp(id1, id2, sizeof(VnetId)) == 0;
}
#endif /* _VNET_VARP_UTIL_H */
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