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/*
*
* Connection Manager
*
* Copyright (C) 2007-2013 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <glib.h>
#include <connman/ipaddress.h>
#include "connman.h"
unsigned char connman_ipaddress_calc_netmask_len(const char *netmask)
{
unsigned char bits;
in_addr_t mask;
in_addr_t host;
if (!netmask)
return 32;
mask = inet_network(netmask);
host = ~mask;
/* a valid netmask must be 2^n - 1 */
if ((host & (host + 1)) != 0)
return -1;
bits = 0;
for (; mask; mask <<= 1)
++bits;
return bits;
}
struct connman_ipaddress *connman_ipaddress_alloc(int family)
{
struct connman_ipaddress *ipaddress;
ipaddress = g_try_new0(struct connman_ipaddress, 1);
if (!ipaddress)
return NULL;
ipaddress->family = family;
ipaddress->prefixlen = 0;
ipaddress->local = NULL;
ipaddress->peer = NULL;
ipaddress->broadcast = NULL;
ipaddress->gateway = NULL;
return ipaddress;
}
void connman_ipaddress_free(struct connman_ipaddress *ipaddress)
{
if (!ipaddress)
return;
g_free(ipaddress->broadcast);
g_free(ipaddress->peer);
g_free(ipaddress->local);
g_free(ipaddress->gateway);
g_free(ipaddress);
}
static bool check_ipv6_address(const char *address)
{
unsigned char buf[sizeof(struct in6_addr)];
int err;
if (!address)
return false;
err = inet_pton(AF_INET6, address, buf);
if (err > 0)
return true;
return false;
}
int connman_ipaddress_set_ipv6(struct connman_ipaddress *ipaddress,
const char *address,
unsigned char prefix_length,
const char *gateway)
{
if (!ipaddress)
return -EINVAL;
if (!check_ipv6_address(address))
return -EINVAL;
DBG("prefix_len %d address %s gateway %s",
prefix_length, address, gateway);
ipaddress->family = AF_INET6;
ipaddress->prefixlen = prefix_length;
g_free(ipaddress->local);
ipaddress->local = g_strdup(address);
g_free(ipaddress->gateway);
ipaddress->gateway = g_strdup(gateway);
return 0;
}
int connman_ipaddress_get_ip(struct connman_ipaddress *ipaddress,
const char **address,
unsigned char *netmask_prefix_length)
{
if (!ipaddress)
return -EINVAL;
*netmask_prefix_length = ipaddress->prefixlen;
*address = ipaddress->local;
return 0;
}
int connman_ipaddress_set_ipv4(struct connman_ipaddress *ipaddress,
const char *address, const char *netmask, const char *gateway)
{
if (!ipaddress)
return -EINVAL;
ipaddress->family = AF_INET;
ipaddress->prefixlen = connman_ipaddress_calc_netmask_len(netmask);
g_free(ipaddress->local);
ipaddress->local = g_strdup(address);
g_free(ipaddress->gateway);
ipaddress->gateway = g_strdup(gateway);
return 0;
}
void connman_ipaddress_set_peer(struct connman_ipaddress *ipaddress,
const char *peer)
{
if (!ipaddress)
return;
g_free(ipaddress->peer);
ipaddress->peer = g_strdup(peer);
}
void connman_ipaddress_clear(struct connman_ipaddress *ipaddress)
{
if (!ipaddress)
return;
ipaddress->prefixlen = 0;
g_free(ipaddress->local);
ipaddress->local = NULL;
g_free(ipaddress->peer);
ipaddress->peer = NULL;
g_free(ipaddress->broadcast);
ipaddress->broadcast = NULL;
g_free(ipaddress->gateway);
ipaddress->gateway = NULL;
}
/*
* Note that this copy function only copies the actual address and
* prefixlen. Use the other copy function to copy the whole struct.
*/
void connman_ipaddress_copy_address(struct connman_ipaddress *ipaddress,
struct connman_ipaddress *source)
{
if (!ipaddress || !source)
return;
ipaddress->family = source->family;
ipaddress->prefixlen = source->prefixlen;
g_free(ipaddress->local);
ipaddress->local = g_strdup(source->local);
}
struct connman_ipaddress *
connman_ipaddress_copy(struct connman_ipaddress *ipaddress)
{
struct connman_ipaddress *copy;
if (!ipaddress)
return NULL;
copy = g_new0(struct connman_ipaddress, 1);
copy->family = ipaddress->family;
copy->prefixlen = ipaddress->prefixlen;
copy->local = g_strdup(ipaddress->local);
copy->peer = g_strdup(ipaddress->peer);
copy->broadcast = g_strdup(ipaddress->broadcast);
copy->gateway = g_strdup(ipaddress->gateway);
return copy;
}
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