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/*
*
* Connection Manager
*
* Copyright (C) 2007-2008 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 <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <net/ethernet.h>
#include <linux/if_arp.h>
#include <linux/wireless.h>
#include <connman/device.h>
#include <connman/rtnl.h>
#include <connman/log.h>
#include "connman.h"
static GSList *device_list = NULL;
static struct connman_device *find_device(int index)
{
GSList *list;
for (list = device_list; list; list = list->next) {
struct connman_device *device = list->data;
if (connman_device_get_index(device) == index)
return device;
}
return NULL;
}
static char *index2name(int index)
{
struct ifreq ifr;
int sk, err;
if (index < 0)
return NULL;
sk = socket(PF_INET, SOCK_DGRAM, 0);
if (sk < 0)
return NULL;
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_ifindex = index;
err = ioctl(sk, SIOCGIFNAME, &ifr);
close(sk);
if (err < 0)
return NULL;
return strdup(ifr.ifr_name);
}
static char *index2ident(int index, const char *prefix)
{
struct ifreq ifr;
struct ether_addr *eth;
char *str;
int sk, err, len;
if (index < 0)
return NULL;
sk = socket(PF_INET, SOCK_DGRAM, 0);
if (sk < 0)
return NULL;
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_ifindex = index;
err = ioctl(sk, SIOCGIFNAME, &ifr);
if (err == 0)
err = ioctl(sk, SIOCGIFHWADDR, &ifr);
close(sk);
if (err < 0)
return NULL;
len = prefix ? strlen(prefix) + 18 : 18;
str = malloc(len);
if (!str)
return NULL;
eth = (void *) &ifr.ifr_hwaddr.sa_data;
snprintf(str, len, "%s%02X_%02X_%02X_%02X_%02X_%02X",
prefix ? prefix : "",
eth->ether_addr_octet[0],
eth->ether_addr_octet[1],
eth->ether_addr_octet[2],
eth->ether_addr_octet[3],
eth->ether_addr_octet[4],
eth->ether_addr_octet[5]);
return str;
}
static void detect_newlink(unsigned short type, int index,
unsigned flags, unsigned change)
{
enum connman_device_type devtype = CONNMAN_DEVICE_TYPE_UNKNOWN;
struct connman_device *device;
gchar *name, *devname;
DBG("type %d index %d", type, index);
device = find_device(index);
if (device != NULL)
return;
devname = index2name(index);
if (type == ARPHRD_ETHER) {
char bridge_path[PATH_MAX], wimax_path[PATH_MAX];
struct stat st;
struct iwreq iwr;
int sk;
snprintf(bridge_path, PATH_MAX,
"/sys/class/net/%s/bridge", devname);
snprintf(wimax_path, PATH_MAX,
"/sys/class/net/%s/wimax", devname);
memset(&iwr, 0, sizeof(iwr));
strncpy(iwr.ifr_ifrn.ifrn_name, devname, IFNAMSIZ);
sk = socket(PF_INET, SOCK_DGRAM, 0);
if (g_str_has_prefix(devname, "bnep") == TRUE)
devtype = CONNMAN_DEVICE_TYPE_UNKNOWN;
else if (stat(bridge_path, &st) == 0 && (st.st_mode & S_IFDIR))
devtype = CONNMAN_DEVICE_TYPE_UNKNOWN;
else if (stat(wimax_path, &st) == 0 && (st.st_mode & S_IFDIR))
devtype = CONNMAN_DEVICE_TYPE_WIMAX;
else if (ioctl(sk, SIOCGIWNAME, &iwr) == 0)
devtype = CONNMAN_DEVICE_TYPE_UNKNOWN;
else
devtype = CONNMAN_DEVICE_TYPE_ETHERNET;
close(sk);
} else if (type == ARPHRD_NONE) {
if (g_str_has_prefix(devname, "hso") == TRUE)
devtype = CONNMAN_DEVICE_TYPE_HSO;
}
if (devtype == CONNMAN_DEVICE_TYPE_UNKNOWN) {
g_free(devname);
return;
}
name = index2ident(index, "dev_");
device = connman_device_create(name, devtype);
if (device == NULL) {
g_free(devname);
g_free(name);
return;
}
connman_device_set_index(device, index);
connman_device_set_interface(device, devname);
g_free(devname);
g_free(name);
if (connman_device_register(device) < 0) {
connman_device_unref(device);
return;
}
device_list = g_slist_append(device_list, device);
}
static void detect_dellink(unsigned short type, int index,
unsigned flags, unsigned change)
{
struct connman_device *device;
DBG("type %d index %d", type, index);
device = find_device(index);
if (device == NULL)
return;
device_list = g_slist_remove(device_list, device);
connman_device_unregister(device);
connman_device_unref(device);
}
static struct connman_rtnl detect_rtnl = {
.name = "detect",
.priority = CONNMAN_RTNL_PRIORITY_LOW,
.newlink = detect_newlink,
.dellink = detect_dellink,
};
int __connman_detect_init(void)
{
int err;
err = connman_rtnl_register(&detect_rtnl);
if (err < 0)
return err;
connman_rtnl_send_getlink();
return 0;
}
void __connman_detect_cleanup(void)
{
GSList *list;
connman_rtnl_unregister(&detect_rtnl);
for (list = device_list; list; list = list->next) {
struct connman_device *device = list->data;
connman_device_unregister(device);
connman_device_unref(device);
}
g_slist_free(device_list);
device_list = NULL;
}
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