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NetworkManager/src/NetworkManagerDevice.c

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/* NetworkManager -- Network link manager
*
* Dan Williams <dcbw@redhat.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.
*
* (C) Copyright 2004 Red Hat, Inc.
*/
#include <errno.h>
#include <glib.h>
#include <dbus/dbus-glib.h>
#include <hal/libhal.h>
#include <iwlib.h>
#include <signal.h>
#include <string.h>
#include "NetworkManager.h"
#include "NetworkManagerMain.h"
#include "NetworkManagerDevice.h"
#include "NetworkManagerDevicePrivate.h"
#include "NetworkManagerUtils.h"
#include "NetworkManagerDbus.h"
#include "NetworkManagerWireless.h"
#include "NetworkManagerPolicy.h"
#include "NetworkManagerAPList.h"
#include "NetworkManagerSystem.h"
#include "NetworkManagerDHCP.h"
/* Local static prototypes */
static gboolean mii_get_link (NMDevice *dev);
static gpointer nm_device_activation_worker (gpointer user_data);
static gboolean nm_device_activation_configure_ip (NMDevice *dev, gboolean do_only_autoip);
/******************************************************/
/******************************************************/
/*
* nm_device_test_wireless_extensions
*
* Test whether a given device is a wireless one or not.
*
*/
static gboolean nm_device_test_wireless_extensions (NMDevice *dev)
{
int sk;
int err;
char ioctl_buf[64];
g_return_val_if_fail (dev != NULL, FALSE);
/* We obviously cannot probe test devices (since they don't
* actually exist in hardware).
*/
if (dev->test_device)
return (FALSE);
ioctl_buf[63] = 0;
strncpy(ioctl_buf, nm_device_get_iface(dev), 63);
sk = iw_sockets_open ();
err = ioctl(sk, SIOCGIWNAME, ioctl_buf);
close (sk);
return (err == 0);
}
/*
* nm_device_supports_wireless_scan
*
* Test whether a given device is a wireless one or not.
*
*/
static gboolean nm_device_supports_wireless_scan (NMDevice *dev)
{
int sk;
int err;
gboolean can_scan = TRUE;
wireless_scan_head scan_data;
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (dev->type == DEVICE_TYPE_WIRELESS_ETHERNET, FALSE);
/* A test wireless device can always scan (we generate fake scan data for it) */
if (dev->test_device)
return (TRUE);
sk = iw_sockets_open ();
err = iw_scan (sk, (char *)nm_device_get_iface (dev), WIRELESS_EXT, &scan_data);
nm_dispose_scan_results (scan_data.result);
if ((err == -1) && (errno == EOPNOTSUPP))
can_scan = FALSE;
close (sk);
return (can_scan);
}
/*
* nm_get_device_by_udi
*
* Search through the device list for a device with a given UDI.
*
* NOTE: the caller MUST hold the device list mutex already to make
* this routine thread-safe.
*
*/
NMDevice *nm_get_device_by_udi (NMData *data, const char *udi)
{
NMDevice *dev = NULL;
GSList *element;
g_return_val_if_fail (data != NULL, NULL);
g_return_val_if_fail (udi != NULL, NULL);
element = data->dev_list;
while (element)
{
dev = (NMDevice *)(element->data);
if (dev)
{
if (nm_null_safe_strcmp (nm_device_get_udi (dev), udi) == 0)
break;
}
element = g_slist_next (element);
}
return (dev);
}
/*
* nm_get_device_by_iface
*
* Search through the device list for a device with a given iface.
*
* NOTE: the caller MUST hold the device list mutex already to make
* this routine thread-safe.
*
*/
NMDevice *nm_get_device_by_iface (NMData *data, const char *iface)
{
NMDevice *iter_dev = NULL;
NMDevice *found_dev = NULL;
GSList *element;
g_return_val_if_fail (data != NULL, NULL);
g_return_val_if_fail (iface != NULL, NULL);
element = data->dev_list;
while (element)
{
iter_dev = (NMDevice *)(element->data);
if (iter_dev)
{
if (nm_null_safe_strcmp (nm_device_get_iface (iter_dev), iface) == 0)
{
found_dev = iter_dev;
break;
}
}
element = g_slist_next (element);
}
return (found_dev);
}
/*****************************************************************************/
/* NMDevice object routines */
/*****************************************************************************/
/*
* nm_device_new
*
* Creates and initializes the structure representation of an NM device. For test
* devices, a device type other than DEVICE_TYPE_DONT_KNOW must be specified, this
* argument is ignored for real hardware devices since they are auto-probed.
*
*/
NMDevice *nm_device_new (const char *iface, const char *udi, gboolean test_dev, NMDeviceType test_dev_type, NMData *app_data)
{
NMDevice *dev;
g_return_val_if_fail (iface != NULL, NULL);
g_return_val_if_fail (strlen (iface) > 0, NULL);
g_return_val_if_fail (app_data != NULL, NULL);
/* Test devices must have a valid type specified */
if (test_dev && !(test_dev_type != DEVICE_TYPE_DONT_KNOW))
return (NULL);
/* Another check to make sure we don't create a test device unless
* test devices were enabled on the command line.
*/
if (!app_data->enable_test_devices && test_dev)
{
syslog (LOG_ERR, "nm_device_new(): attempt to create a test device, but test devices were not enabled"
" on the command line. Will not create the device.\n");
return (NULL);
}
dev = g_new0 (NMDevice, 1);
if (!dev)
{
syslog (LOG_ERR, "nm_device_new() could not allocate a new device... Not enough memory?");
return (NULL);
}
dev->refcount = 1;
dev->app_data = app_data;
dev->iface = g_strdup (iface);
dev->test_device = test_dev;
nm_device_set_udi (dev, udi);
/* Real hardware devices are probed for their type, test devices must have
* their type specified.
*/
if (test_dev)
dev->type = test_dev_type;
else
dev->type = nm_device_test_wireless_extensions (dev) ?
DEVICE_TYPE_WIRELESS_ETHERNET : DEVICE_TYPE_WIRED_ETHERNET;
/* Have to bring the device up before checking link status and other stuff */
nm_device_bring_up (dev);
/* Initialize wireless-specific options */
if (nm_device_is_wireless (dev))
{
iwrange range;
int sk;
if (!(dev->options.wireless.scan_mutex = g_mutex_new ()))
{
g_free (dev->iface);
g_free (dev);
return (NULL);
}
if (!(dev->options.wireless.best_ap_mutex = g_mutex_new ()))
{
g_mutex_free (dev->options.wireless.scan_mutex);
g_free (dev->iface);
g_free (dev);
return (NULL);
}
if (!(dev->options.wireless.ap_list = nm_ap_list_new (NETWORK_TYPE_DEVICE)))
{
g_free (dev->iface);
g_mutex_free (dev->options.wireless.best_ap_mutex);
g_free (dev);
return (NULL);
}
dev->options.wireless.supports_wireless_scan = nm_device_supports_wireless_scan (dev);
/* Perform an initial wireless scan */
nm_device_set_mode (dev, NETWORK_MODE_INFRA);
nm_device_do_wireless_scan (dev);
nm_device_update_best_ap (dev);
if ((sk = iw_sockets_open ()) >= 0)
{
if (iw_get_range_info (sk, nm_device_get_iface (dev), &(dev->options.wireless.range_info)) == -1)
memset (&(dev->options.wireless.range_info), 0, sizeof (struct iw_range));
close (sk);
}
}
dev->driver_support_level = nm_get_driver_support_level (dev->app_data->hal_ctx, dev);
if (nm_device_get_driver_support_level (dev) != NM_DRIVER_UNSUPPORTED)
{
nm_device_update_link_active (dev, TRUE);
nm_device_update_ip4_address (dev);
nm_device_update_hw_address (dev);
/* Grab IP config data for this device from the system configuration files */
nm_system_device_update_config_info (dev);
}
return (dev);
}
/*
* Refcounting functions
*/
void nm_device_ref (NMDevice *dev)
{
g_return_if_fail (dev != NULL);
dev->refcount++;
}
void nm_device_unref (NMDevice *dev)
{
g_return_if_fail (dev != NULL);
dev->refcount--;
if (dev->refcount <= 0)
{
nm_device_ap_list_clear (dev);
dev->options.wireless.ap_list = NULL;
g_free (dev->udi);
g_free (dev->iface);
if (nm_device_is_wireless (dev))
{
g_mutex_free (dev->options.wireless.scan_mutex);
if (dev->options.wireless.ap_list)
nm_ap_list_unref (dev->options.wireless.ap_list);
if (dev->options.wireless.cached_ap_list1)
nm_ap_list_unref (dev->options.wireless.cached_ap_list1);
if (dev->options.wireless.cached_ap_list2)
nm_ap_list_unref (dev->options.wireless.cached_ap_list2);
if (dev->options.wireless.cached_ap_list3)
nm_ap_list_unref (dev->options.wireless.cached_ap_list3);
nm_ap_unref (dev->options.wireless.best_ap);
g_mutex_free (dev->options.wireless.best_ap_mutex);
}
dev->udi = NULL;
dev->iface = NULL;
g_free (dev);
}
}
/*
* nm_device_open_sock
*
* Get a control socket for network operations.
*
*/
int nm_device_open_sock (void)
{
int fd;
/* Try to grab a control socket */
fd = socket(PF_INET, SOCK_DGRAM, 0);
if (fd >= 0)
return (fd);
fd = socket(PF_PACKET, SOCK_DGRAM, 0);
if (fd >= 0)
return (fd);
fd = socket(PF_INET6, SOCK_DGRAM, 0);
if (fd >= 0)
return (fd);
syslog (LOG_ERR, "nm_get_network_control_socket() could not get network control socket.");
return (-1);
}
/*
* Return the amount of time we should wait for the device
* to get a link, based on the # of frequencies it has to
* scan.
*/
int nm_device_get_association_pause_value (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, 5);
g_return_val_if_fail (nm_device_is_wireless (dev), -1);
/* If the card supports more than 14 channels, we should probably wait
* around 10s so it can scan them all. After we set the ESSID on the card, the card
* has to scan all channels to find our requested AP (which can take a long time
* if it is an A/B/G chipset like the Atheros 5212, for example).
*/
if (dev->options.wireless.range_info.num_frequency > 14)
return 10;
else
return 5;
}
/*
* Get/set functions for UDI
*/
char * nm_device_get_udi (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, NULL);
return (dev->udi);
}
void nm_device_set_udi (NMDevice *dev, const char *udi)
{
g_return_if_fail (dev != NULL);
g_return_if_fail (udi != NULL);
if (dev->udi)
g_free (dev->udi);
dev->udi = g_strdup (udi);
}
/*
* Get/set functions for iface
*/
const char * nm_device_get_iface (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, NULL);
return (dev->iface);
}
/*
* Get/set functions for type
*/
guint nm_device_get_type (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, DEVICE_TYPE_DONT_KNOW);
return (dev->type);
}
gboolean nm_device_is_wireless (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, FALSE);
return (dev->type == DEVICE_TYPE_WIRELESS_ETHERNET);
}
gboolean nm_device_is_wired (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, FALSE);
return (dev->type == DEVICE_TYPE_WIRED_ETHERNET);
}
/*
* Accessor for driver support level
*/
NMDriverSupportLevel nm_device_get_driver_support_level (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, NM_DRIVER_UNSUPPORTED);
return (dev->driver_support_level);
}
/*
* Get/set functions for link_active
*/
gboolean nm_device_get_link_active (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, FALSE);
return (dev->link_active);
}
void nm_device_set_link_active (NMDevice *dev, const gboolean link_active)
{
g_return_if_fail (dev != NULL);
dev->link_active = link_active;
}
/*
* Get function for supports_wireless_scan
*/
gboolean nm_device_get_supports_wireless_scan (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, FALSE);
if (!nm_device_is_wireless (dev))
return (FALSE);
return (dev->options.wireless.supports_wireless_scan);
}
/*
* nm_device_wireless_link_active
*
* Gets the link state of a wireless device
*
*/
static gboolean nm_device_wireless_link_active (NMDevice *dev)
{
struct iwreq wrq;
int iwlib_socket;
gboolean link = FALSE;
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (dev->app_data != NULL, FALSE);
/* Test devices have their link state set through DBUS */
if (dev->test_device)
return (nm_device_get_link_active (dev));
/*
* For wireless cards, the best indicator of a "link" at this time
* seems to be whether the card has a valid access point MAC address.
* Is there a better way?
*/
if ((iwlib_socket = iw_sockets_open ()) < 0)
return (FALSE);
if (iw_get_ext (iwlib_socket, nm_device_get_iface (dev), SIOCGIWAP, &wrq) >= 0)
{
NMAccessPoint *best_ap;
if ((best_ap = nm_device_get_best_ap (dev)))
{
if ( nm_ethernet_address_is_valid ((struct ether_addr *)(&(wrq.u.ap_addr.sa_data)))
&& !nm_device_need_ap_switch (dev))
link = TRUE;
nm_ap_unref (best_ap);
}
}
close (iwlib_socket);
return (link);
}
/*
* nm_device_wired_link_active
*
* Return the link state of a wired device. We usually just grab the HAL
* net.80203.link property, but on card insertion we need to check the MII
* registers of the card to get a more accurate response, since HAL may not
* have received a netlink socket link event for the device yet, and therefore
* will return FALSE when the device really does have a link.
*
*/
static gboolean nm_device_wired_link_active (NMDevice *dev, gboolean check_mii)
{
gboolean link = FALSE;
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (dev->app_data != NULL, FALSE);
/* Test devices have their link state set through DBUS */
if (dev->test_device)
return (nm_device_get_link_active (dev));
if (check_mii)
link = mii_get_link (dev);
else if (hal_device_property_exists (dev->app_data->hal_ctx, nm_device_get_udi (dev), "net.80203.link"))
link = hal_device_get_property_bool (dev->app_data->hal_ctx, nm_device_get_udi (dev), "net.80203.link");
return (link);
}
/*
* nm_device_update_link_active
*
* Updates the link state for a particular device.
*
*/
void nm_device_update_link_active (NMDevice *dev, gboolean check_mii)
{
gboolean link = FALSE;
g_return_if_fail (dev != NULL);
g_return_if_fail (dev->app_data != NULL);
switch (nm_device_get_type (dev))
{
case DEVICE_TYPE_WIRELESS_ETHERNET:
link = nm_device_wireless_link_active (dev);
/* Update our current signal strength too */
nm_device_update_signal_strength (dev);
break;
case DEVICE_TYPE_WIRED_ETHERNET:
link = nm_device_wired_link_active (dev, check_mii);
break;
default:
link = nm_device_get_link_active (dev); /* Can't get link info for this device, so don't change link status */
break;
}
/* Update device link status and global state variable if the status changed */
if (link != nm_device_get_link_active (dev))
{
nm_device_set_link_active (dev, link);
nm_data_mark_state_changed (dev->app_data);
}
}
/*
* nm_device_get_essid
*
* If a device is wireless, return the essid that it is attempting
* to use.
*
* Returns: allocated string containing essid. Must be freed by caller.
*
*/
char * nm_device_get_essid (NMDevice *dev)
{
int iwlib_socket;
int err;
g_return_val_if_fail (dev != NULL, NULL);
g_return_val_if_fail (nm_device_is_wireless (dev), NULL);
/* Test devices return the essid of their "best" access point
* or if there is none, the contents of the cur_essid field.
*/
if (dev->test_device)
{
NMAccessPoint *best_ap = nm_device_get_best_ap (dev);
char *essid = dev->options.wireless.cur_essid;
/* Or, if we've got a best ap, use that ESSID instead */
if (best_ap)
{
essid = nm_ap_get_essid (best_ap);
nm_ap_unref (best_ap);
}
return (essid);
}
iwlib_socket = iw_sockets_open ();
if (iwlib_socket >= 0)
{
wireless_config info;
err = iw_get_basic_config(iwlib_socket, nm_device_get_iface (dev), &info);
if (err >= 0)
{
if (dev->options.wireless.cur_essid)
g_free (dev->options.wireless.cur_essid);
dev->options.wireless.cur_essid = g_strdup (info.essid);
}
else
syslog (LOG_ERR, "nm_device_get_essid(): error getting ESSID for device %s. errno = %d", nm_device_get_iface (dev), errno);
close (iwlib_socket);
}
return (dev->options.wireless.cur_essid);
}
/*
* nm_device_set_essid
*
* If a device is wireless, set the essid that it should use.
*/
void nm_device_set_essid (NMDevice *dev, const char *essid)
{
int iwlib_socket;
int err;
struct iwreq wreq;
unsigned char safe_essid[IW_ESSID_MAX_SIZE + 1] = "\0";
g_return_if_fail (dev != NULL);
g_return_if_fail (nm_device_is_wireless (dev));
/* Test devices directly set cur_essid */
if (dev->test_device)
{
if (dev->options.wireless.cur_essid)
g_free (dev->options.wireless.cur_essid);
dev->options.wireless.cur_essid = g_strdup (essid);
return;
}
/* Make sure the essid we get passed is a valid size */
if (!essid)
safe_essid[0] = '\0';
else
{
strncpy (safe_essid, essid, IW_ESSID_MAX_SIZE);
safe_essid[IW_ESSID_MAX_SIZE] = '\0';
}
iwlib_socket = iw_sockets_open ();
if (iwlib_socket >= 0)
{
wreq.u.essid.pointer = (caddr_t) safe_essid;
wreq.u.essid.length = strlen (safe_essid) + 1;
wreq.u.essid.flags = 1; /* Enable essid on card */
err = iw_set_ext (iwlib_socket, nm_device_get_iface (dev), SIOCSIWESSID, &wreq);
if (err == -1)
syslog (LOG_ERR, "nm_device_set_essid(): error setting ESSID '%s' for device %s. errno = %d", safe_essid, nm_device_get_iface (dev), errno);
close (iwlib_socket);
}
}
/*
* nm_device_get_frequency
*
* For wireless devices, get the frequency we broadcast/receive on.
*
*/
double nm_device_get_frequency (NMDevice *dev)
{
int sk;
int err;
double freq = 0;
g_return_val_if_fail (dev != NULL, 0);
g_return_val_if_fail (nm_device_is_wireless (dev), 0);
/* Test devices don't really have a frequency, they always succeed */
if (dev->test_device)
return 703000000;
sk = iw_sockets_open ();
if (sk >= 0)
{
struct iwreq wrq;
err = iw_set_ext (sk, nm_device_get_iface (dev), SIOCGIWFREQ, &wrq);
if (err >= 0)
freq = iw_freq2float (&wrq.u.freq);
if (err == -1)
syslog (LOG_ERR, "nm_device_get_frequency(): error getting frequency for device %s. errno = %d", nm_device_get_iface (dev), errno);
close (sk);
}
return (freq);
}
/*
* nm_device_set_frequency
*
* For wireless devices, set the frequency to broadcast/receive on.
*
*/
void nm_device_set_frequency (NMDevice *dev, const double freq)
{
int sk;
int err;
g_return_if_fail (dev != NULL);
g_return_if_fail (nm_device_is_wireless (dev));
/* Test devices don't really have a frequency, they always succeed */
if (dev->test_device)
return;
sk = iw_sockets_open ();
if (sk >= 0)
{
struct iwreq wrq;
wrq.u.freq.flags = IW_FREQ_FIXED;
iw_float2freq (freq, &wrq.u.freq);
err = iw_set_ext (sk, nm_device_get_iface (dev), SIOCSIWFREQ, &wrq);
if (err == -1)
syslog (LOG_ERR, "nm_device_set_frequency(): error setting frequency %f for device %s. errno = %d", freq, nm_device_get_iface (dev), errno);
close (sk);
}
}
/*
* nm_device_get_bitrate
*
* For wireless devices, get the bitrate to broadcast/receive at.
* Returned value is rate in KHz.
*
*/
int nm_device_get_bitrate (NMDevice *dev)
{
int sk;
int err = -1;
struct iwreq wrq;
g_return_val_if_fail (dev != NULL, 0);
g_return_val_if_fail (nm_device_is_wireless (dev), 0);
/* Test devices don't really have a frequency, they always succeed */
if (dev->test_device)
return 11;
sk = iw_sockets_open ();
if (sk >= 0)
{
err = iw_set_ext (sk, nm_device_get_iface (dev), SIOCGIWRATE, &wrq);
close (sk);
}
return ((err >= 0) ? wrq.u.bitrate.value / 1000 : 0);
}
/*
* nm_device_set_bitrate
*
* For wireless devices, set the bitrate to broadcast/receive at.
* Rate argument should be in KHz, or 0 for automatic.
*
*/
void nm_device_set_bitrate (NMDevice *dev, const int KHz)
{
int sk;
int err;
g_return_if_fail (dev != NULL);
g_return_if_fail (nm_device_is_wireless (dev));
/* Test devices don't really have a frequency, they always succeed */
if (dev->test_device)
return;
sk = iw_sockets_open ();
if (sk >= 0)
{
struct iwreq wrq;
if (KHz != 0)
{
wrq.u.bitrate.value = KHz * 1000;
wrq.u.bitrate.fixed = 1;
}
else
{
wrq.u.bitrate.value = -1;
wrq.u.bitrate.fixed = 0;
}
err = iw_set_ext (sk, nm_device_get_iface (dev), SIOCSIWRATE, &wrq);
if (err == -1)
syslog (LOG_ERR, "nm_device_set_bitrate(): error setting bitrate %d KHz for device %s. errno = %d", KHz, nm_device_get_iface (dev), errno);
close (sk);
}
}
/*
* nm_device_get_ap_address
*
* If a device is wireless, get the access point's ethernet address
* that the card is associated with.
*/
void nm_device_get_ap_address (NMDevice *dev, struct ether_addr *addr)
{
int iwlib_socket;
struct iwreq wrq;
g_return_if_fail (dev != NULL);
g_return_if_fail (addr != NULL);
g_return_if_fail (nm_device_is_wireless (dev));
/* Test devices return an invalid address when there's no link,
* and a made-up address when there is a link.
*/
if (dev->test_device)
{
struct ether_addr good_addr = { {0x70, 0x37, 0x03, 0x70, 0x37, 0x03} };
struct ether_addr bad_addr = { {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} };
gboolean link = nm_device_get_link_active (dev);
memcpy ((link ? &good_addr : &bad_addr), &(wrq.u.ap_addr.sa_data), sizeof (struct ether_addr));
return;
}
iwlib_socket = iw_sockets_open ();
if (iw_get_ext (iwlib_socket, nm_device_get_iface (dev), SIOCGIWAP, &wrq) >= 0)
memcpy (addr, &(wrq.u.ap_addr.sa_data), sizeof (struct ether_addr));
else
memset (addr, 0, sizeof (struct ether_addr));
close (iwlib_socket);
}
/*
* nm_device_set_enc_key
*
* If a device is wireless, set the encryption key that it should use.
*
* key: encryption key to use, or NULL or "" to disable encryption.
* NOTE that at this time, the key must be the raw HEX key, not
* a passphrase.
*/
void nm_device_set_enc_key (NMDevice *dev, const char *key, NMDeviceAuthMethod auth_method)
{
int iwlib_socket;
int err;
struct iwreq wreq;
int keylen;
unsigned char safe_key[IW_ENCODING_TOKEN_MAX + 1];
gboolean set_key = FALSE;
g_return_if_fail (dev != NULL);
g_return_if_fail (nm_device_is_wireless (dev));
/* Test devices just ignore encryption keys */
if (dev->test_device)
return;
/* Make sure the essid we get passed is a valid size */
if (!key)
safe_key[0] = '\0';
else
{
strncpy (safe_key, key, IW_ENCODING_TOKEN_MAX);
safe_key[IW_ENCODING_TOKEN_MAX] = '\0';
}
iwlib_socket = iw_sockets_open ();
if (iwlib_socket >= 0)
{
wreq.u.data.pointer = (caddr_t) NULL;
wreq.u.data.length = 0;
wreq.u.data.flags = IW_ENCODE_ENABLED;
/* Unfortunately, some drivers (Cisco) don't make a distinction between
* Open System authentication mode and whether or not to use WEP. You
* DON'T have to use WEP when using Open System, but these cards force
* it. Therefore, we have to set Open System mode when using WEP.
*/
if (strlen (safe_key) == 0)
{
wreq.u.data.flags |= IW_ENCODE_DISABLED | IW_ENCODE_NOKEY;
set_key = TRUE;
}
else
{
unsigned char parsed_key[IW_ENCODING_TOKEN_MAX + 1];
keylen = iw_in_key_full(iwlib_socket, nm_device_get_iface (dev), safe_key, &parsed_key[0], &wreq.u.data.flags);
if (keylen > 0)
{
switch (auth_method)
{
case NM_DEVICE_AUTH_METHOD_OPEN_SYSTEM:
wreq.u.data.flags |= IW_ENCODE_OPEN;
break;
case NM_DEVICE_AUTH_METHOD_SHARED_KEY:
wreq.u.data.flags |= IW_ENCODE_RESTRICTED;
break;
default:
wreq.u.data.flags |= IW_ENCODE_RESTRICTED;
break;
}
wreq.u.data.pointer = (caddr_t) &parsed_key;
wreq.u.data.length = keylen;
set_key = TRUE;
}
}
if (set_key)
{
err = iw_set_ext (iwlib_socket, nm_device_get_iface (dev), SIOCSIWENCODE, &wreq);
if (err == -1)
syslog (LOG_ERR, "nm_device_set_enc_key(): error setting key for device %s. errno = %d", nm_device_get_iface (dev), errno);
}
close (iwlib_socket);
} else syslog (LOG_ERR, "nm_device_set_enc_key(): could not get wireless control socket.");
}
/*
* nm_device_get_signal_strength
*
* Get the current signal strength of a wireless device. This only works when
* the card is associated with an access point, so will only work for the
* active device.
*
* Returns: -1 on error
* 0 - 100 strength percentage of the connection to the current access point
*
*/
gint8 nm_device_get_signal_strength (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, -1);
g_return_val_if_fail (nm_device_is_wireless (dev), -1);
return (dev->options.wireless.strength);
}
/*
* nm_device_update_signal_strength
*
* Update the device's idea of the strength of its connection to the
* current access point.
*
*/
void nm_device_update_signal_strength (NMDevice *dev)
{
gboolean has_range;
int iwlib_socket;
iwrange range;
iwstats stats;
int percent = -1;
g_return_if_fail (dev != NULL);
g_return_if_fail (nm_device_is_wireless (dev));
g_return_if_fail (dev->app_data != NULL);
/* If we aren't the active device, we don't really have a signal strength
* that would mean anything.
*/
if (dev != dev->app_data->active_device)
{
dev->options.wireless.strength = -1;
return;
}
/* Fake a value for test devices */
if (dev->test_device)
{
dev->options.wireless.strength = 75;
return;
}
iwlib_socket = iw_sockets_open ();
has_range = (iw_get_range_info (iwlib_socket, nm_device_get_iface (dev), &range) >= 0);
if (iw_get_stats (iwlib_socket, nm_device_get_iface (dev), &stats, &range, has_range) == 0)
{
/* Update our max quality while we're at it */
dev->options.wireless.max_quality = range.max_qual.level;
dev->options.wireless.noise = stats.qual.noise;
percent = nm_wireless_qual_to_percent (dev, &(stats.qual));
}
else
{
dev->options.wireless.max_quality = -1;
dev->options.wireless.noise = -1;
percent = -1;
}
close (iwlib_socket);
/* Try to smooth out the strength. Atmel cards, for example, will give no strength
* one second and normal strength the next.
*/
if ((percent == -1) && (++dev->options.wireless.invalid_strength_counter <= 3))
percent = dev->options.wireless.strength;
else
dev->options.wireless.invalid_strength_counter = 0;
dev->options.wireless.strength = percent;
}
/*
* nm_device_get_noise
*
* Get the current noise level of a wireless device.
*
*/
guint8 nm_device_get_noise (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, 0);
g_return_val_if_fail (nm_device_is_wireless (dev), 0);
return (dev->options.wireless.noise);
}
/*
* nm_device_get_max_quality
*
* Get the quality maximum of a wireless device.
*
*/
guint8 nm_device_get_max_quality (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, 0);
g_return_val_if_fail (nm_device_is_wireless (dev), 0);
return (dev->options.wireless.max_quality);
}
/*
* nm_device_get_bad_crypt_packets
*
* Return the number of packets the card has dropped because
* they could not be successfully decrypted.
*
*/
guint32 nm_device_get_bad_crypt_packets (NMDevice *dev)
{
iwstats stats;
int sk;
int err;
g_return_val_if_fail (dev != NULL, 0);
g_return_val_if_fail (nm_device_is_wireless (dev), 0);
sk = iw_sockets_open ();
err = iw_get_stats (sk, nm_device_get_iface (dev), &stats, NULL, FALSE);
close (sk);
return (err == 0 ? stats.discard.code : 0);
}
/*
* nm_device_get_ip4_address
*
* Get a device's IPv4 address
*
*/
guint32 nm_device_get_ip4_address(NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, 0);
return (dev->ip4_address);
}
void nm_device_update_ip4_address (NMDevice *dev)
{
guint32 new_address;
struct ifreq req;
int socket;
int err;
g_return_if_fail (dev != NULL);
g_return_if_fail (dev->app_data != NULL);
g_return_if_fail (nm_device_get_iface (dev) != NULL);
/* Test devices get a nice, bogus IP address */
if (dev->test_device)
{
dev->ip4_address = 0x07030703;
return;
}
socket = nm_device_open_sock ();
if (socket < 0)
return;
memset (&req, 0, sizeof (struct ifreq));
strncpy ((char *)(&req.ifr_name), nm_device_get_iface (dev), strlen (nm_device_get_iface (dev)));
err = ioctl (socket, SIOCGIFADDR, &req);
close (socket);
if (err != 0)
return;
new_address = ((struct sockaddr_in *)(&req.ifr_addr))->sin_addr.s_addr;
/* If the new address is different, send an IP4AddressChanged signal on the bus */
if (new_address != nm_device_get_ip4_address (dev))
{
nm_dbus_signal_device_ip4_address_change (dev->app_data->dbus_connection, dev);
dev->ip4_address = new_address;
}
}
/*
* nm_device_get_ip6_address
*
* Get a device's IPv6 address
*
*/
void nm_device_get_ip6_address(NMDevice *dev)
{
/* FIXME
* Implement
*/
}
/*
* nm_device_get_hw_address
*
* Get a device's hardware address
*
*/
void nm_device_get_hw_address(NMDevice *dev, unsigned char hw_addr[ETH_ALEN])
{
g_return_if_fail (dev != NULL);
memcpy (hw_addr, dev->hw_addr, ETH_ALEN);
}
void nm_device_update_hw_address (NMDevice *dev)
{
struct ifreq req;
int socket;
int err;
g_return_if_fail (dev != NULL);
g_return_if_fail (dev->app_data != NULL);
g_return_if_fail (nm_device_get_iface (dev) != NULL);
/* Test devices get a nice, bogus IP address */
if (dev->test_device)
{
memset (dev->hw_addr, 0, ETH_ALEN);
return;
}
socket = nm_device_open_sock ();
if (socket < 0)
return;
memset (&req, 0, sizeof (struct ifreq));
strncpy ((char *)(&req.ifr_name), nm_device_get_iface (dev), strlen (nm_device_get_iface (dev)));
err = ioctl (socket, SIOCGIFHWADDR, &req);
close (socket);
if (err != 0)
return;
memcpy (dev->hw_addr, req.ifr_hwaddr.sa_data, ETH_ALEN);
}
/*
* nm_device_set_up_down
*
* Set the up flag on the device on or off
*
*/
static void nm_device_set_up_down (NMDevice *dev, gboolean up)
{
struct ifreq ifr;
int iface_fd;
int err;
guint32 flags = up ? IFF_UP : ~IFF_UP;
g_return_if_fail (dev != NULL);
/* Test devices do whatever we tell them to do */
if (dev->test_device)
{
dev->test_device_up = up;
return;
}
if (nm_device_get_driver_support_level (dev) == NM_DRIVER_UNSUPPORTED)
return;
iface_fd = nm_device_open_sock ();
if (iface_fd < 0)
return;
/* Get flags already there */
strcpy (ifr.ifr_name, nm_device_get_iface (dev));
err = ioctl (iface_fd, SIOCGIFFLAGS, &ifr);
if (!err)
{
/* If the interface doesn't have those flags already,
* set them on it.
*/
if ((ifr.ifr_flags^flags) & IFF_UP)
{
ifr.ifr_flags &= ~IFF_UP;
ifr.ifr_flags |= IFF_UP & flags;
err = ioctl (iface_fd, SIOCSIFFLAGS, &ifr);
if (err)
syslog (LOG_ERR, "nm_device_set_up_down() could not bring device %s %s. errno = %d", nm_device_get_iface (dev), (up ? "up" : "down"), errno );
}
}
else
syslog (LOG_ERR, "nm_device_set_up_down() could not get flags for device %s. errno = %d", nm_device_get_iface (dev), errno );
close (iface_fd);
}
/*
* Interface state functions: bring up, down, check
*
*/
void nm_device_bring_up (NMDevice *dev)
{
g_return_if_fail (dev != NULL);
nm_device_set_up_down (dev, TRUE);
}
void nm_device_bring_down (NMDevice *dev)
{
g_return_if_fail (dev != NULL);
nm_device_set_up_down (dev, FALSE);
}
gboolean nm_device_is_up (NMDevice *dev)
{
int iface_fd;
struct ifreq ifr;
int err;
g_return_val_if_fail (dev != NULL, FALSE);
if (dev->test_device)
return (dev->test_device_up);
iface_fd = nm_device_open_sock ();
if (iface_fd < 0)
return (FALSE);
/* Get device's flags */
strcpy (ifr.ifr_name, nm_device_get_iface (dev));
err = ioctl (iface_fd, SIOCGIFFLAGS, &ifr);
close (iface_fd);
if (!err)
return (!((ifr.ifr_flags^IFF_UP) & IFF_UP));
syslog (LOG_ERR, "nm_device_is_up() could not get flags for device %s. errno = %d", nm_device_get_iface (dev), errno );
return (FALSE);
}
/*
* nm_device_get_mode
*
* Get managed/infrastructure/adhoc mode on a device (currently wireless only)
*
*/
NMNetworkMode nm_device_get_mode (NMDevice *dev)
{
int sk;
NMNetworkMode mode = NETWORK_MODE_UNKNOWN;
g_return_val_if_fail (dev != NULL, NETWORK_MODE_UNKNOWN);
g_return_val_if_fail (nm_device_is_wireless (dev), NETWORK_MODE_UNKNOWN);
/* Force the card into Managed/Infrastructure mode */
sk = iw_sockets_open ();
if (sk >= 0)
{
struct iwreq wrq;
int err;
err = iw_set_ext (sk, nm_device_get_iface (dev), SIOCGIWMODE, &wrq);
if (err == 0)
{
switch (wrq.u.mode)
{
case IW_MODE_INFRA:
mode = NETWORK_MODE_INFRA;
break;
case IW_MODE_ADHOC:
mode = NETWORK_MODE_ADHOC;
break;
default:
break;
}
}
else
syslog (LOG_ERR, "nm_device_get_mode (%s): error setting card to Infrastructure mode. errno = %d", nm_device_get_iface (dev), errno);
close (sk);
}
return (mode);
}
/*
* nm_device_set_mode
*
* Set managed/infrastructure/adhoc mode on a device (currently wireless only)
*
*/
gboolean nm_device_set_mode (NMDevice *dev, const NMNetworkMode mode)
{
int sk;
gboolean success = FALSE;
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (nm_device_is_wireless (dev), FALSE);
g_return_val_if_fail ((mode == NETWORK_MODE_INFRA) || (mode == NETWORK_MODE_ADHOC), FALSE);
/* Force the card into Managed/Infrastructure mode */
sk = iw_sockets_open ();
if (sk >= 0)
{
struct iwreq wreq;
int err;
gboolean mode_good = FALSE;
switch (mode)
{
case NETWORK_MODE_INFRA:
wreq.u.mode = IW_MODE_INFRA;
mode_good = TRUE;
break;
case NETWORK_MODE_ADHOC:
wreq.u.mode = IW_MODE_ADHOC;
mode_good = TRUE;
break;
default:
mode_good = FALSE;
break;
}
if (mode_good)
{
err = iw_set_ext (sk, nm_device_get_iface (dev), SIOCSIWMODE, &wreq);
if (err == 0)
success = TRUE;
else
syslog (LOG_ERR, "nm_device_set_mode (%s): error setting card to Infrastructure mode. errno = %d", nm_device_get_iface (dev), errno);
}
close (sk);
}
return (success);
}
/*
* nm_device_activation_begin
*
* Spawn a new thread to handle device activation.
*
* Returns: TRUE on success activation beginning
* FALSE on error beginning activation (bad params, couldn't create thread)
*
*/
gboolean nm_device_activation_begin (NMDevice *dev)
{
GError *error = NULL;
NMData *data = (NMData *)dev->app_data;
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (!dev->activating, TRUE); /* Return if activation has already begun */
g_return_val_if_fail (data != NULL, FALSE);
/* Ref the device so it doesn't go away while worker function is active */
nm_device_ref (dev);
/* Don't attempt to actually activate if we are just starting NetworkManager and
* we are about to activate a wired device that's already configured. Plays nicer
* with the system when NM is started after a network is already set up.
*
* FIXME: IPv6 here too, and this really should not be here, it should be part of
* the policy, not the device code itself.
*/
if (data->starting_up && nm_device_is_wired (data->active_device) && nm_device_get_ip4_address (data->active_device))
{
dev->activating = FALSE;
dev->just_activated = TRUE;
return (TRUE);
}
if (nm_device_get_driver_support_level (dev) == NM_DRIVER_UNSUPPORTED)
{
dev->activating = FALSE;
return (FALSE);
}
/* Reset communication flags between worker and main thread */
dev->activating = TRUE;
dev->just_activated = FALSE;
dev->quit_activation = FALSE;
dev->activation_failed = FALSE;
if (nm_device_is_wireless (dev))
{
dev->options.wireless.now_scanning = FALSE;
dev->options.wireless.user_key_received = FALSE;
}
if (!g_thread_create (nm_device_activation_worker, dev, FALSE, &error))
{
syslog (LOG_CRIT, "nm_device_activation_begin(): could not create activation worker thread.");
dev->activating = FALSE;
return (FALSE);
}
nm_dbus_signal_device_status_change (data->dbus_connection, dev, DEVICE_ACTIVATING);
return (TRUE);
}
/*
* nm_device_activation_handle_cancel
*
* Check whether we should stop activation, and if so clean up flags
* and other random things.
*
*/
static gboolean nm_device_activation_handle_cancel (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, TRUE);
/* If we were told to quit activation, stop the thread and return */
if (dev->quit_activation)
{
syslog (LOG_DEBUG, "nm_device_activation_worker(%s): activation canceled.", nm_device_get_iface (dev));
dev->activating = FALSE;
dev->just_activated = FALSE;
dev->activation_failed = TRUE;
dev->quit_activation = FALSE;
return (TRUE);
}
return (FALSE);
}
/*
* nm_device_activate_wireless
*
* Bring up a wireless card with the essid and wep key of its "best" ap
*
* Returns: TRUE on successful activation
* FALSE on unsuccessful activation (ie no best AP)
*
*/
static gboolean nm_device_set_wireless_config (NMDevice *dev, NMAccessPoint *ap, NMDeviceAuthMethod auth)
{
gboolean success = FALSE;
const char *essid = NULL;
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (nm_device_is_wireless (dev), FALSE);
g_return_val_if_fail (ap != NULL, FALSE);
g_return_val_if_fail (nm_ap_get_essid (ap) != NULL, FALSE);
/* Force the card into Managed/Infrastructure mode */
nm_device_bring_down (dev);
g_usleep (G_USEC_PER_SEC * 4);
nm_device_bring_up (dev);
g_usleep (G_USEC_PER_SEC * 2);
nm_device_set_mode (dev, NETWORK_MODE_INFRA);
nm_device_set_essid (dev, " ");
/* Disable encryption, then re-enable and set correct key on the card
* if we are going to encrypt traffic.
*/
essid = nm_ap_get_essid (ap);
nm_device_set_mode (dev, nm_ap_get_mode (ap));
nm_device_set_bitrate (dev, 0);
if (nm_ap_get_user_created (ap) || (nm_ap_get_freq (ap) && (nm_ap_get_mode (ap) == NETWORK_MODE_ADHOC)))
{
nm_device_set_frequency (dev, nm_ap_get_freq (ap));
}
nm_device_set_enc_key (dev, NULL, NM_DEVICE_AUTH_METHOD_NONE);
if (nm_ap_get_encrypted (ap) && nm_ap_get_enc_key_source (ap))
{
char *hashed_key = nm_ap_get_enc_key_hashed (ap);
nm_device_set_enc_key (dev, hashed_key, auth);
g_free (hashed_key);
}
nm_device_set_essid (dev, essid);
syslog (LOG_INFO, "nm_device_set_wireless_config (%s) using essid '%s', with %s authentication.",
nm_device_get_iface (dev), essid, (auth == NM_DEVICE_AUTH_METHOD_NONE) ? "no" :
((auth == NM_DEVICE_AUTH_METHOD_OPEN_SYSTEM) ? "Open System" :
((auth == NM_DEVICE_AUTH_METHOD_SHARED_KEY) ? "Shared Key" : "unknown")));
/* Bring the device up and pause to allow card to associate. After we set the ESSID
* on the card, the card has to scan all channels to find our requested AP (which can
* take a long time if it is an A/B/G chipset like the Atheros 5212, for example).
*/
g_usleep (G_USEC_PER_SEC * nm_device_get_association_pause_value (dev));
/* Some cards don't really work well in ad-hoc mode unless you explicitly set the bitrate
* on them. (Netgear WG511T/Atheros 5212 with madwifi drivers). Until we can get rate information
* from scanned access points out of iwlib, clamp bitrate for these cards at 11Mbps.
*/
if ((nm_ap_get_mode (ap) == NETWORK_MODE_ADHOC) && (nm_device_get_bitrate (dev) <= 0))
nm_device_set_bitrate (dev, 11000); /* In Kbps */
nm_device_update_link_active (dev, FALSE);
success = TRUE;
return (success);
}
/*
* nm_device_activate_wireless_adhoc
*
* Create an ad-hoc network (rather than associating with one).
*
*/
static gboolean nm_device_activate_wireless_adhoc (NMDevice *dev, NMAccessPoint *ap)
{
gboolean success = FALSE;
NMDeviceAuthMethod auth = NM_DEVICE_AUTH_METHOD_NONE;
NMAPListIter *iter;
NMAccessPoint *tmp_ap;
double card_freqs[IW_MAX_FREQUENCIES];
int num_freqs = 0, i;
double freq_to_use = 0;
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (ap != NULL, FALSE);
if (nm_ap_get_encrypted (ap))
auth = NM_DEVICE_AUTH_METHOD_SHARED_KEY;
/* Build our local list of frequencies to whittle down until we find a free one */
memset (&card_freqs, 0, sizeof (card_freqs));
num_freqs = MIN (dev->options.wireless.range_info.num_frequency, IW_MAX_FREQUENCIES);
for (i = 0; i < num_freqs; i++)
card_freqs[i] = iw_freq2float (&(dev->options.wireless.range_info.freq[i]));
/* We need to find a clear wireless channel to use. We will
* only use 802.11b channels for now.
*/
iter = nm_ap_list_iter_new (nm_device_ap_list_get (dev));
while ((tmp_ap = nm_ap_list_iter_next (iter)))
{
double ap_freq = nm_ap_get_freq (tmp_ap);
for (i = 0; i < num_freqs && ap_freq; i++)
{
if (card_freqs[i] == ap_freq)
card_freqs[i] = 0;
}
}
nm_ap_list_iter_free (iter);
/* Ok, find the first non-zero freq in our table and use it.
* For now we only try to use a channel in the 802.11b channel
* space so that most everyone can see it.
*/
for (i = 0; i < num_freqs; i++)
{
int channel = iw_freq_to_channel (card_freqs[i], &(dev->options.wireless.range_info));
if (card_freqs[i] && (channel > 0) && (channel < 15))
{
freq_to_use = card_freqs[i];
break;
}
}
/* Hmm, no free channels in 802.11b space. Pick one more or less randomly */
if (!freq_to_use)
{
double pfreq;
int channel = (int)(random () % 14);
int err;
err = iw_channel_to_freq (channel, &pfreq, &(dev->options.wireless.range_info));
if (err == channel)
freq_to_use = pfreq;
}
if (freq_to_use)
{
nm_ap_set_freq (ap, freq_to_use);
syslog (LOG_INFO, "Will create network '%s' with frequency %f.\n", nm_ap_get_essid (ap), nm_ap_get_freq (ap));
if ((success = nm_device_set_wireless_config (dev, ap, auth)))
success = nm_device_activation_configure_ip (dev, TRUE);
}
return (success);
}
static gboolean AP_NEED_KEY (NMAccessPoint *ap)
{
char *s;
int len = 0;
g_return_val_if_fail (ap != NULL, FALSE);
if ((s = nm_ap_get_enc_key_source (ap)))
len = strlen (s);
syslog (LOG_NOTICE, "AP_NEED_KEY: is_enc=%d && (!(key_source=%d) || !(strlen=%d))\n", nm_ap_get_encrypted (ap),
!!nm_ap_get_enc_key_source (ap), len);
if (nm_ap_get_encrypted (ap) && (!nm_ap_get_enc_key_source (ap) || !len))
return (TRUE);
return (FALSE);
}
static gboolean HAVE_LINK (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (nm_device_is_wireless (dev), FALSE);
syslog (LOG_NOTICE, "HAVELINK: act=%d\n", nm_device_get_link_active (dev));
return (nm_device_get_link_active (dev));
}
/*
* nm_device_activate_wireless
*
* Activate a wireless ethernet device
*
*/
static gboolean nm_device_activate_wireless (NMDevice *dev)
{
NMAccessPoint *best_ap;
gboolean success = FALSE;
guint8 attempt = 1;
char last_essid [50] = "\0";
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (dev->app_data != NULL, FALSE);
if (!nm_device_is_up (dev))
nm_device_bring_up (dev);
g_usleep (G_USEC_PER_SEC);
get_ap:
/* If we were told to quit activation, stop the thread and return */
if (nm_device_activation_handle_cancel (dev))
goto out;
/* Get a valid "best" access point we should connect to */
while (!(best_ap = nm_device_get_best_ap (dev)))
{
dev->options.wireless.now_scanning = TRUE;
syslog (LOG_DEBUG, "nm_device_activate_wireless(%s): waiting for an access point.", nm_device_get_iface (dev));
g_usleep (G_USEC_PER_SEC * 2);
/* If we were told to quit activation, stop the thread and return */
if (nm_device_activation_handle_cancel (dev))
goto out;
}
dev->options.wireless.now_scanning = FALSE;
if (!nm_ap_get_encrypted (best_ap))
{
nm_device_set_wireless_config (dev, best_ap, NM_DEVICE_AUTH_METHOD_NONE);
/* If its unencrypted and we don't have a link, we can't use this AP.
* If we can't get an IP address off this AP, we can't use it either.
*/
if (nm_ap_get_mode (best_ap) == NETWORK_MODE_ADHOC)
{
success = nm_device_activation_configure_ip (dev, TRUE);
}
else if (!HAVE_LINK (dev) || !nm_device_activation_configure_ip (dev, FALSE))
{
syslog (LOG_DEBUG, "nm_device_activate_wireless(%s): no link to '%s', or couldn't get configure interface for IP. Trying another access point.",
nm_device_get_iface (dev), nm_ap_get_essid (best_ap) ? nm_ap_get_essid (best_ap) : "(none)");
nm_ap_set_invalid (best_ap, TRUE);
nm_ap_list_append_ap (dev->app_data->invalid_ap_list, best_ap);
nm_ap_unref (best_ap);
nm_device_update_best_ap (dev);
goto get_ap;
}
else
success = TRUE;
}
else
{
NMDeviceAuthMethod auth = NM_DEVICE_AUTH_METHOD_SHARED_KEY;
gboolean need_key = AP_NEED_KEY (best_ap);
need_key:
if (need_key)
{
char *essid = nm_ap_get_essid (best_ap);
if (strcmp (essid, last_essid) != 0)
attempt = 1;
strncpy (&last_essid[0], essid, 49);
/* Get a wireless key */
dev->options.wireless.user_key_received = FALSE;
nm_dbus_get_user_key_for_network (dev->app_data->dbus_connection, dev, best_ap, attempt);
attempt++;
need_key = FALSE;
/* Wait for the key to come back */
syslog (LOG_DEBUG, "nm_device_activation_worker(%s): asking for user key.", nm_device_get_iface (dev));
while (!dev->options.wireless.user_key_received && !dev->quit_activation)
g_usleep (G_USEC_PER_SEC / 2);
syslog (LOG_DEBUG, "nm_device_activation_worker(%s): user key received.", nm_device_get_iface (dev));
/* If we were told to quit activation, stop the thread and return */
if (nm_device_activation_handle_cancel (dev))
{
nm_ap_unref (best_ap);
goto out;
}
/* User may have cancelled the key request, so we need to update our best AP again.
* However, if they didn't, since there will now be a key, we won't get back here for
* the same access point until the key is deemed incorrect below.
*/
nm_ap_unref (best_ap);
goto get_ap;
}
while (auth > NM_DEVICE_AUTH_METHOD_NONE)
{
int ip_success = FALSE;
/* If we were told to quit activation, stop the thread and return */
if (nm_device_activation_handle_cancel (dev))
goto out;
nm_device_set_wireless_config (dev, best_ap, auth);
/* Link checking and all this fallback doesn't really make sense in ad-hoc mode,
* so only do it for infrastructure mode.
*/
if (nm_ap_get_mode (best_ap) == NETWORK_MODE_ADHOC)
{
/* Only do auto-ip on Ad-Hoc connections for now. We technically
* could do DHCP on them though.
*/
success = nm_device_activation_configure_ip (dev, TRUE);
}
else if (nm_ap_get_mode (best_ap) == NETWORK_MODE_INFRA)
{
if (!HAVE_LINK (dev) && (auth == NM_DEVICE_AUTH_METHOD_SHARED_KEY))
{
syslog (LOG_DEBUG, "nm_device_activate_wireless(%s): no hardware link to '%s' in Shared Key mode, trying Open System.",
nm_device_get_iface (dev), nm_ap_get_essid (best_ap) ? nm_ap_get_essid (best_ap) : "(none)");
/* Back down to Open System mode */
auth--;
continue;
}
else if (!HAVE_LINK (dev))
{
/* Must be in Open System mode and it still didn't work, so
* we'll invalidate the current "best" ap and get another one */
syslog (LOG_DEBUG, "nm_device_activate_wireless(%s): no hardware link to '%s' in Open System mode, trying another access point.",
nm_device_get_iface (dev), nm_ap_get_essid (best_ap) ? nm_ap_get_essid (best_ap) : "(none)");
nm_ap_set_invalid (best_ap, TRUE);
nm_ap_list_append_ap (dev->app_data->invalid_ap_list, best_ap);
nm_ap_unref (best_ap);
nm_device_update_best_ap (dev);
goto get_ap;
}
ip_success = nm_device_activation_configure_ip (dev, FALSE);
if (!ip_success && (auth == NM_DEVICE_AUTH_METHOD_SHARED_KEY))
{
/* Back down to Open System mode */
syslog (LOG_DEBUG, "nm_device_activate_wireless(%s): could not get IP configuration info for '%s' in Shared Key mode, trying Open System.",
nm_device_get_iface (dev), nm_ap_get_essid (best_ap) ? nm_ap_get_essid (best_ap) : "(none)");
auth--;
continue;
}
else if (!ip_success)
{
/* Open System mode failed, we must have bad WEP key */
syslog (LOG_DEBUG, "nm_device_activate_wireless(%s): could not get IP configuration info for '%s' in Open System mode, asking for new key.",
nm_device_get_iface (dev), nm_ap_get_essid (best_ap) ? nm_ap_get_essid (best_ap) : "(none)");
need_key = TRUE;
goto need_key;
}
}
/* OK, we have a link and we have IP address info, we're good */
success = TRUE;
break;
}
}
if (success)
{
syslog (LOG_DEBUG, "nm_device_activate_wireless(%s): Success! Connected to access point '%s' and got an IP address.",
nm_device_get_iface (dev), nm_ap_get_essid (best_ap) ? nm_ap_get_essid (best_ap) : "(none)");
nm_ap_unref (best_ap);
}
out:
dev->options.wireless.now_scanning = FALSE;
return (success);
}
/*
* nm_device_activation_configure_ip
*
* Perform any IP-based configuration on a device, like running DHCP
* or manually setting up the IP address, gateway, and default route.
*
*/
static gboolean nm_device_activation_configure_ip (NMDevice *dev, gboolean do_only_autoip)
{
gboolean success = FALSE;
g_return_val_if_fail (dev != NULL, FALSE);
nm_system_delete_default_route ();
if (do_only_autoip)
{
success = nm_device_do_autoip (dev);
}
else if (nm_device_config_get_use_dhcp (dev))
{
int err;
err = nm_device_dhcp_request (dev);
if (err == RET_DHCP_BOUND)
success = TRUE;
else
{
/* Interfaces cannot be down if they are the active interface,
* otherwise we cannot use them for scanning or link detection.
*/
if (nm_device_is_wireless (dev))
{
nm_device_set_essid (dev, "");
nm_device_set_enc_key (dev, NULL, NM_DEVICE_AUTH_METHOD_NONE);
}
if (!nm_device_is_up (dev))
nm_device_bring_up (dev);
}
}
else
{
/* Manually set up the device */
success = nm_system_device_setup_static_ip4_config (dev);
}
if (success)
{
nm_system_flush_arp_cache ();
nm_system_restart_mdns_responder ();
}
return (success);
}
/*
* nm_device_activation_worker
*
* Thread worker function to actually activate a device. We have to do it in another
* thread because things like dhclient block our main thread's event loop, and thus we
* wouldn't respond to dbus messages.
*/
static gpointer nm_device_activation_worker (gpointer user_data)
{
NMDevice *dev = (NMDevice *)user_data;
gboolean success = FALSE;
GMainContext *context = NULL;
g_return_val_if_fail (dev != NULL, NULL);
g_return_val_if_fail (dev->app_data != NULL, NULL);
syslog (LOG_DEBUG, "nm_device_activation_worker (%s) started...", nm_device_get_iface (dev));
/* Bring the device up */
if (!nm_device_is_up (dev));
nm_device_bring_up (dev);
if (nm_device_is_wireless (dev))
{
gboolean create_network = FALSE;
NMAccessPoint *best_ap = nm_device_get_best_ap (dev);
if (best_ap)
{
if (nm_ap_get_user_created (best_ap))
{
create_network = TRUE;
syslog (LOG_INFO, "Creating wireless network '%s'.\n", nm_ap_get_essid (best_ap));
success = nm_device_activate_wireless_adhoc (dev, best_ap);
syslog (LOG_INFO, "Wireless network creation for '%s' was %s.\n", nm_ap_get_essid (best_ap), success ? "successful" : "unsuccessful");
}
nm_ap_unref (best_ap);
}
if (!create_network)
success = nm_device_activate_wireless (dev);
}
else if (nm_device_is_wired (dev))
success = nm_device_activation_configure_ip (dev, FALSE);
syslog (LOG_DEBUG, "Activation (%s) IP configuration/DHCP returned = %d\n", nm_device_get_iface (dev), success);
/* If we were told to quit activation, stop the thread and return */
if (nm_device_activation_handle_cancel (dev))
goto out;
if (!success)
{
syslog (LOG_DEBUG, "Activation (%s) IP configuration/DHCP unsuccessful! Ending activation...\n", nm_device_get_iface (dev));
dev->activating = FALSE;
dev->just_activated = FALSE;
dev->activation_failed = TRUE;
dev->quit_activation = FALSE;
goto out;
}
dev->just_activated = TRUE;
dev->activating = FALSE;
dev->activation_failed = FALSE;
dev->quit_activation = FALSE;
syslog (LOG_DEBUG, "Activation (%s) IP configuration/DHCP successful!\n", nm_device_get_iface (dev));
/* If we were told to quit activation, stop the thread and return */
if (nm_device_activation_handle_cancel (dev))
{
syslog (LOG_DEBUG, "Activation (%s) told to cancel. Ending activation...\n", nm_device_get_iface (dev));
goto out;
}
syslog (LOG_INFO, "nm_device_activation_worker(%s): device activated", nm_device_get_iface (dev));
if (!nm_device_config_get_use_dhcp (dev) || !dev->dhcp_iface)
goto out;
/* We stick around if we need to renew the address with DHCP or something. */
dev->context = g_main_context_new ();
dev->loop = g_main_loop_new (context, FALSE);
nm_device_dhcp_setup_timeouts (dev);
g_main_loop_run (dev->loop);
g_source_remove (dev->renew_timeout);
g_source_remove (dev->rebind_timeout);
g_main_loop_unref (dev->loop);
g_main_context_unref (dev->context);
out:
dev->context = NULL;
dev->loop = NULL;
if (dev->dhcp_iface)
{
dhcp_interface_free (dev->dhcp_iface);
dev->dhcp_iface = NULL;
}
nm_device_unref (dev);
syslog (LOG_DEBUG, "Activation (%s) ending thread.\n", nm_device_get_iface (dev));
return (NULL);
}
/*
* nm_device_is_just_activated
*
* Check if the device was just activated successfully or not. If so, clear
* its just_activated flag and return TRUE. If its not activated yet, return FALSE.
*
*/
gboolean nm_device_is_just_activated (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, FALSE);
if (dev->just_activated)
{
dev->just_activated = FALSE;
return (TRUE);
}
return (FALSE);
}
/*
* nm_device_is_activating
*
* Return whether or not the device is currently activating itself.
*
*/
gboolean nm_device_is_activating (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, FALSE);
return (dev->activating);
}
/*
* nm_device_activation_should_cancel
*
* Return whether or not we've been told to cancel activation
*
*/
gboolean nm_device_activation_should_cancel (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, FALSE);
return (dev->quit_activation);
}
/*
* nm_device_did_activation_fail
*
* Return whether or not activation on the device failed (was cancelled or
* activation process encountered and error)
*
*/
gboolean nm_device_did_activation_fail (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, FALSE);
return (dev->activation_failed);
}
void nm_device_clear_activation_fail (NMDevice *dev)
{
g_return_if_fail (dev != NULL);
dev->activation_failed = FALSE;
}
/*
* nm_device_activation_cancel
*
* Signal activation worker that it should stop and die.
*
*/
void nm_device_activation_cancel (NMDevice *dev)
{
g_return_if_fail (dev != NULL);
if (nm_device_is_activating (dev))
{
syslog (LOG_DEBUG, "nm_device_activation_cancel(%s): cancelling...", nm_device_get_iface (dev));
dev->quit_activation = TRUE;
if (dev->dhcp_iface)
nm_device_dhcp_cease (dev);
/* Spin until cancelled. Possible race conditions or deadlocks here.
* The other problem with waiting here is that we hold up dbus traffic
* that we should respond to.
*/
while (nm_device_is_activating (dev))
g_usleep (G_USEC_PER_SEC / 2);
syslog (LOG_DEBUG, "nm_device_activation_cancel(%s): cancelled.", nm_device_get_iface (dev));
}
}
/*
* nm_device_deactivate
*
* Remove a device's routing table entries and IP address.
*
*/
gboolean nm_device_deactivate (NMDevice *dev, gboolean just_added)
{
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (dev->app_data != NULL, FALSE);
nm_device_activation_cancel (dev);
if (dev->loop)
g_main_loop_quit (dev->loop);
if (nm_device_get_driver_support_level (dev) == NM_DRIVER_UNSUPPORTED)
return (TRUE);
/* Take out any entries in the routing table and any IP address the old device had. */
nm_system_device_flush_routes (dev);
nm_system_device_flush_addresses (dev);
dev->ip4_address = 0;
if (!just_added)
nm_dbus_signal_device_status_change (dev->app_data->dbus_connection, dev, DEVICE_NO_LONGER_ACTIVE);
/* Clean up stuff, don't leave the card associated */
if (nm_device_is_wireless (dev))
{
nm_device_set_essid (dev, "");
nm_device_set_enc_key (dev, NULL, NM_DEVICE_AUTH_METHOD_NONE);
nm_device_set_mode (dev, NETWORK_MODE_INFRA);
}
return (TRUE);
}
/*
* nm_device_is_scanning
*
* Returns whether the device is scanning, awaiting an access point to connect to.
* Note that this does NOT get set when the device is actually scanning, just
* when it is waiting for a valid access point to connect to.
*
*/
gboolean nm_device_is_scanning (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (nm_device_is_wireless (dev), FALSE);
return (dev->options.wireless.now_scanning);
}
/*
* nm_device_set_user_key_for_network
*
* Called upon receipt of a NetworkManagerInfo reply with a
* user-supplied key.
*
*/
void nm_device_set_user_key_for_network (NMDevice *dev, NMAccessPointList *invalid_list,
unsigned char *network, unsigned char *key,
NMEncKeyType enc_method)
{
NMAccessPoint *best_ap;
const char *cancel_message = "***canceled***";
g_return_if_fail (dev != NULL);
g_return_if_fail (nm_device_is_wireless (dev));
g_return_if_fail (network != NULL);
g_return_if_fail (key != NULL);
/* If the user canceled, mark the ap as invalid */
if (strncmp (key, cancel_message, strlen (cancel_message)) == 0)
{
NMAccessPoint *ap;
if ((ap = nm_device_ap_list_get_ap_by_essid (dev, network)))
{
NMAccessPoint *invalid_ap = nm_ap_new_from_ap (ap);
if (invalid_list)
nm_ap_list_append_ap (invalid_list, invalid_ap);
}
nm_device_update_best_ap (dev);
}
else if ((best_ap = nm_device_get_best_ap (dev)))
{
/* Make sure the "best" ap matches the essid we asked for the key of,
* then set the new key on the access point.
*/
if (nm_null_safe_strcmp (network, nm_ap_get_essid (best_ap)) == 0)
nm_ap_set_enc_key_source (best_ap, key, enc_method);
nm_ap_unref (best_ap);
}
dev->options.wireless.user_key_received = TRUE;
}
/*
* nm_device_ap_list_add_ap
*
* Add an access point to the devices internal AP list.
*
*/
static void nm_device_ap_list_add_ap (NMDevice *dev, NMAccessPoint *ap)
{
g_return_if_fail (dev != NULL);
g_return_if_fail (ap != NULL);
g_return_if_fail (nm_device_is_wireless (dev));
nm_ap_list_append_ap (dev->options.wireless.ap_list, ap);
/* Transfer ownership of ap to the list by unrefing it here */
nm_ap_unref (ap);
}
/*
* nm_device_ap_list_clear
*
* Clears out the device's internal list of available access points.
*
*/
void nm_device_ap_list_clear (NMDevice *dev)
{
g_return_if_fail (dev != NULL);
g_return_if_fail (nm_device_is_wireless (dev));
if (!dev->options.wireless.ap_list)
return;
nm_ap_list_unref (dev->options.wireless.ap_list);
dev->options.wireless.ap_list = NULL;
}
/*
* nm_device_ap_list_get_ap_by_essid
*
* Get the access point for a specific essid
*
*/
NMAccessPoint *nm_device_ap_list_get_ap_by_essid (NMDevice *dev, const char *essid)
{
NMAccessPoint *ret_ap = NULL;
g_return_val_if_fail (dev != NULL, NULL);
g_return_val_if_fail (nm_device_is_wireless (dev), NULL);
g_return_val_if_fail (essid != NULL, NULL);
if (!dev->options.wireless.ap_list)
return (NULL);
ret_ap = nm_ap_list_get_ap_by_essid (dev->options.wireless.ap_list, essid);
return (ret_ap);
}
/*
* nm_device_ap_list_get_ap_by_address
*
* Get the access point for a specific MAC address
*
*/
NMAccessPoint *nm_device_ap_list_get_ap_by_address (NMDevice *dev, const struct ether_addr *addr)
{
NMAccessPoint *ret_ap = NULL;
g_return_val_if_fail (dev != NULL, NULL);
g_return_val_if_fail (nm_device_is_wireless (dev), NULL);
g_return_val_if_fail (addr != NULL, NULL);
if (!dev->options.wireless.ap_list)
return (NULL);
ret_ap = nm_ap_list_get_ap_by_address (dev->options.wireless.ap_list, addr);
return (ret_ap);
}
/*
* nm_device_ap_list_get
*
* Return a pointer to the AP list
*
*/
NMAccessPointList *nm_device_ap_list_get (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, NULL);
g_return_val_if_fail (nm_device_is_wireless (dev), NULL);
return (dev->options.wireless.ap_list);
}
/*
* Get/Set functions for "best" access point
*
* Caller MUST unref returned access point when done with it.
*
*/
NMAccessPoint *nm_device_get_best_ap (NMDevice *dev)
{
NMAccessPoint *best_ap;
g_return_val_if_fail (dev != NULL, NULL);
g_return_val_if_fail (nm_device_is_wireless (dev), NULL);
g_mutex_lock (dev->options.wireless.best_ap_mutex);
best_ap = dev->options.wireless.best_ap;
/* Callers get a reffed AP */
if (best_ap) nm_ap_ref (best_ap);
g_mutex_unlock (dev->options.wireless.best_ap_mutex);
return (best_ap);
}
void nm_device_set_best_ap (NMDevice *dev, NMAccessPoint *ap)
{
g_return_if_fail (dev != NULL);
g_return_if_fail (nm_device_is_wireless (dev));
g_mutex_lock (dev->options.wireless.best_ap_mutex);
if (dev->options.wireless.best_ap)
nm_ap_unref (dev->options.wireless.best_ap);
if (ap)
nm_ap_ref (ap);
dev->options.wireless.best_ap = ap;
nm_device_unfreeze_best_ap (dev);
g_mutex_unlock (dev->options.wireless.best_ap_mutex);
}
/*
* Freeze/unfreeze best ap
*
* If the user explicitly picks a network to associate with, we don't
* change the active network until it goes out of range.
*
*/
void nm_device_freeze_best_ap (NMDevice *dev)
{
g_return_if_fail (dev != NULL);
g_return_if_fail (nm_device_is_wireless (dev));
dev->options.wireless.freeze_best_ap = TRUE;
}
void nm_device_unfreeze_best_ap (NMDevice *dev)
{
g_return_if_fail (dev != NULL);
g_return_if_fail (nm_device_is_wireless (dev));
dev->options.wireless.freeze_best_ap = FALSE;
}
gboolean nm_device_is_best_ap_frozen (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (nm_device_is_wireless (dev), FALSE);
return (dev->options.wireless.freeze_best_ap);
}
/*
* Accessor for dhcp_interface
*
*/
struct dhcp_interface *nm_device_get_dhcp_iface (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, FALSE);
return (dev->dhcp_iface);
}
void nm_device_set_dhcp_iface (NMDevice *dev, struct dhcp_interface *dhcp_iface)
{
g_return_if_fail (dev != NULL);
/* NOTE: this function should only be used from the activation worker thread
* which will take care of shutting down any active DHCP threads and cleaning
* up the dev->dhcp_iface structure.
*/
dev->dhcp_iface = dhcp_iface;
}
/*
* nm_device_get_path_for_ap
*
* Return the object path for an access point.
*
* NOTE: assumes the access point is actually in the device's access point list.
*
*/
char * nm_device_get_path_for_ap (NMDevice *dev, NMAccessPoint *ap)
{
g_return_val_if_fail (dev != NULL, NULL);
g_return_val_if_fail (ap != NULL, NULL);
if (nm_ap_get_essid (ap))
return (g_strdup_printf ("%s/%s/Networks/%s", NM_DBUS_PATH_DEVICES, nm_device_get_iface (dev), nm_ap_get_essid (ap)));
else
return (NULL);
}
/*
* nm_device_need_ap_switch
*
* Returns TRUE if the essid of the card does not match the essid
* of the "best" access point it should be associating with.
*
*/
gboolean nm_device_need_ap_switch (NMDevice *dev)
{
NMAccessPoint *ap;
gboolean need_switch = FALSE;
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (nm_device_is_wireless (dev), FALSE);
ap = nm_device_get_best_ap (dev);
if (nm_null_safe_strcmp (nm_device_get_essid (dev), (ap ? nm_ap_get_essid (ap) : NULL)) != 0)
need_switch = TRUE;
if (ap) nm_ap_unref (ap);
return (need_switch);
}
/*
* nm_device_update_best_ap
*
* Recalculate the "best" access point we should be associating with. This
* function may disrupt the current connection, so it should be called only
* when necessary, ie when the current access point is no longer in range
* or is for some other reason invalid and should no longer be used.
*
*/
void nm_device_update_best_ap (NMDevice *dev)
{
NMAccessPointList *ap_list;
NMAPListIter *iter;
NMAccessPoint *scan_ap = NULL;
NMAccessPoint *best_ap = NULL;
NMAccessPoint *trusted_best_ap = NULL;
NMAccessPoint *untrusted_best_ap = NULL;
GTimeVal trusted_latest_timestamp = {0, 0};
GTimeVal untrusted_latest_timestamp = {0, 0};
g_return_if_fail (dev != NULL);
g_return_if_fail (dev->app_data != NULL);
g_return_if_fail (nm_device_is_wireless (dev));
if (!(ap_list = nm_device_ap_list_get (dev)))
return;
/* Iterate over the device's ap list to make sure the current
* "best" ap is still in the device's ap list (so that if its
* not, we can "unfreeze" the best ap if its been frozen already).
* If it is, we don't change the best ap here.
*/
if (nm_device_is_best_ap_frozen (dev))
{
best_ap = nm_device_get_best_ap (dev);
/* If its in the device's ap list still, don't change the
* best ap, since its frozen.
*/
g_mutex_lock (dev->options.wireless.best_ap_mutex);
if (best_ap)
{
char *essid = nm_ap_get_essid (best_ap);
/* Two reasons to keep the current best_ap:
* 1) Its still valid and we see it in our scan data
* 2) Its an ad-hoc network that we've created (and therefore its not in our scan data)
*/
if ( ( !nm_ap_list_get_ap_by_essid (dev->app_data->invalid_ap_list, essid)
&& nm_device_ap_list_get_ap_by_essid (dev, essid))
|| nm_ap_get_user_created (best_ap))
{
nm_ap_unref (best_ap);
g_mutex_unlock (dev->options.wireless.best_ap_mutex);
return;
}
nm_ap_unref (best_ap);
}
/* Otherwise, its gone away and we don't care about it anymore */
nm_device_unfreeze_best_ap (dev);
g_mutex_unlock (dev->options.wireless.best_ap_mutex);
}
if (!(iter = nm_ap_list_iter_new (ap_list)))
return;
while ((scan_ap = nm_ap_list_iter_next (iter)))
{
NMAccessPoint *tmp_ap;
char *ap_essid = nm_ap_get_essid (scan_ap);
/* Access points in the "invalid" list cannot be used */
if (nm_ap_list_get_ap_by_essid (dev->app_data->invalid_ap_list, ap_essid))
continue;
if ((tmp_ap = nm_ap_list_get_ap_by_essid (dev->app_data->allowed_ap_list, ap_essid)))
{
const GTimeVal *curtime = nm_ap_get_timestamp (tmp_ap);
if (nm_ap_get_trusted (tmp_ap) && (curtime->tv_sec > trusted_latest_timestamp.tv_sec))
{
trusted_latest_timestamp = *nm_ap_get_timestamp (tmp_ap);
trusted_best_ap = scan_ap;
/* Merge access point data (mainly to get updated WEP key) */
nm_ap_set_enc_key_source (trusted_best_ap, nm_ap_get_enc_key_source (tmp_ap), nm_ap_get_enc_method (tmp_ap));
}
else if (!nm_ap_get_trusted (tmp_ap) && (curtime->tv_sec > untrusted_latest_timestamp.tv_sec))
{
untrusted_latest_timestamp = *nm_ap_get_timestamp (tmp_ap);
untrusted_best_ap = scan_ap;
/* Merge access point data (mainly to get updated WEP key) */
nm_ap_set_enc_key_source (untrusted_best_ap, nm_ap_get_enc_key_source (tmp_ap), nm_ap_get_enc_method (tmp_ap));
}
}
}
best_ap = trusted_best_ap ? trusted_best_ap : untrusted_best_ap;
nm_ap_list_iter_free (iter);
/* If the best ap is NULL, bring device down and clear out its essid and AP */
nm_device_set_best_ap (dev, best_ap);
if (!best_ap)
{
nm_device_set_essid (dev, " ");
nm_device_set_enc_key (dev, NULL, NM_DEVICE_AUTH_METHOD_NONE);
nm_device_bring_up (dev);
}
}
/*
* nm_device_wireless_network_exists
*
* Tell the card to explicitly use with a particular essid, and then
* see if we can associate with some AP using that ESSID.
* Mainly for non-essid-broadcasting APs to figure out whether or not
* some random ESSID the user gave us exists or not.
*
* WARNING: will blow away any connection the card currently has.
*
*/
gboolean nm_device_wireless_network_exists (NMDevice *dev, const char *network, const char *key, NMEncKeyType key_type,
struct ether_addr *ap_addr, gboolean *encrypted)
{
gboolean success = FALSE;
gboolean temp_enc = FALSE;
struct ether_addr addr;
NMAccessPoint *ap = NULL;
NMDeviceAuthMethod auths[3] = { NM_DEVICE_AUTH_METHOD_SHARED_KEY, NM_DEVICE_AUTH_METHOD_OPEN_SYSTEM, NM_DEVICE_AUTH_METHOD_NONE };
int i;
NMNetworkMode mode = NETWORK_MODE_INFRA;
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (network != NULL, FALSE);
g_return_val_if_fail (ap_addr != NULL, FALSE);
g_return_val_if_fail (strlen (network), FALSE);
g_return_val_if_fail (encrypted != NULL, FALSE);
syslog (LOG_INFO, "nm_device_wireless_network_exists () looking for network '%s'...", network);
*encrypted = FALSE;
nm_device_bring_up (dev);
g_usleep (G_USEC_PER_SEC * 4);
if ((ap = nm_ap_list_get_ap_by_essid (nm_device_ap_list_get (dev), network)))
{
mode = nm_ap_get_mode (ap);
/* If the access point we're looking for is in our list and we know its
* not encrypted, short-cut our connection fallbacks here and don't even
* try enabling encryption to see if we can connect.
*/
if (!nm_ap_get_encrypted (ap))
{
auths[0] = NM_DEVICE_AUTH_METHOD_NONE;
auths[1] = NM_DEVICE_AUTH_METHOD_SHARED_KEY;
auths[2] = NM_DEVICE_AUTH_METHOD_OPEN_SYSTEM;
}
}
/* Two cases here. Ad-Hoc networks don't have an access point that authenticates or
* that you associate with, we just have to see if we know about the network and then
* set up the card. So if we know about it, we can use it. I guess if you don't have
* the right WEP key, you're kind of screwed.
*/
if (mode == NETWORK_MODE_ADHOC)
{
if (ap)
success = TRUE;
}
else if (mode == NETWORK_MODE_INFRA)
{
nm_device_set_mode (dev, mode);
/* Loop through the auth modes */
for (i = 0; i < 3; i++)
{
switch (auths[i])
{
case NM_DEVICE_AUTH_METHOD_SHARED_KEY:
case NM_DEVICE_AUTH_METHOD_OPEN_SYSTEM:
{
temp_enc = TRUE;
if ((key_type != NM_ENC_TYPE_UNKNOWN) && key)
{
char *hashed_key = NULL;
switch (key_type)
{
case (NM_ENC_TYPE_128_BIT_PASSPHRASE):
hashed_key = nm_wireless_128bit_key_from_passphrase (key);
break;
case (NM_ENC_TYPE_ASCII_KEY):
if (strlen (key) <= 5)
hashed_key = nm_wireless_64bit_ascii_to_hex (key);
else
hashed_key = nm_wireless_128bit_ascii_to_hex (key);
break;
case (NM_ENC_TYPE_HEX_KEY):
case (NM_ENC_TYPE_UNKNOWN):
hashed_key = g_strdup (key);
break;
default:
break;
}
nm_device_set_enc_key (dev, hashed_key, auths[i]);
g_free (hashed_key);
}
else
nm_device_set_enc_key (dev, "11111111111111111111111111", auths[i]);
break;
}
case NM_DEVICE_AUTH_METHOD_NONE:
default:
temp_enc = FALSE;
nm_device_set_enc_key (dev, NULL, auths[i]);
break;
}
/* Pause to allow card to associate. After we set the ESSID on the card, the card
* has to scan all channels to find our requested AP (which can take a long time
* if it is an A/B/G chipset like the Atheros 5212, for example).
*/
nm_device_set_essid (dev, network);
g_usleep (G_USEC_PER_SEC * nm_device_get_association_pause_value (dev));
nm_device_update_link_active (dev, FALSE);
nm_device_get_ap_address (dev, &addr);
if (nm_ethernet_address_is_valid (&addr) && nm_device_get_essid (dev))
{
nm_device_get_ap_address (dev, ap_addr);
success = TRUE;
*encrypted = temp_enc;
}
}
}
/* If by some chance we could connect, but in the wrong encryption mode, return the
* encryption status of the access point if its in our scan, since that's more accurate.
*/
if (ap)
*encrypted = nm_ap_get_encrypted (ap);
if (success)
syslog (LOG_INFO, " found! (%s)\n", *encrypted ? "encrypted" : "unencrypted");
else
syslog (LOG_INFO, " not found\n");
return (success);
}
/*
* nm_device_find_and_use_essid
*
* Given an essid, attempt to associate with that ESSID even if we can't
* see it in our scan. If we successfully find it, mark that network as
* our "best" and use it during the next activation.
*
* Returns: TRUE on success
* FALSE on failure
*/
gboolean nm_device_find_and_use_essid (NMDevice *dev, const char *essid, const char *key, NMEncKeyType key_type)
{
struct ether_addr ap_addr;
gboolean encrypted = FALSE;
NMAccessPoint *ap = NULL;
gboolean success = FALSE;
gboolean exists = FALSE;
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (nm_device_is_wireless (dev), FALSE);
g_return_val_if_fail (dev->app_data != NULL, FALSE);
g_return_val_if_fail (essid != NULL, FALSE);
syslog (LOG_DEBUG, "Forcing AP '%s'", essid);
/* If the network exists, make sure it has the correct ESSID set
* (it might have been a blank ESSID up to this point) and use it.
*/
nm_device_deactivate (dev, FALSE);
g_usleep (G_USEC_PER_SEC);
if (!(exists = nm_device_wireless_network_exists (dev, essid, key, key_type, &ap_addr, &encrypted)))
exists = nm_device_wireless_network_exists (dev, essid, key, key_type, &ap_addr, &encrypted);
if (exists)
{
if (!(ap = nm_ap_list_get_ap_by_essid (nm_device_ap_list_get (dev), essid)))
{
if (!(ap = nm_device_ap_list_get_ap_by_address (dev, &ap_addr)))
{
/* Okay, the card didn't see it in the scan, Cisco cards sometimes do this.
* So we make a "fake" access point and add it to the scan list.
*/
ap = nm_ap_new ();
nm_ap_set_encrypted (ap, encrypted);
nm_ap_set_artificial (ap, TRUE);
nm_ap_set_address (ap, &ap_addr);
nm_ap_list_append_ap (nm_device_ap_list_get (dev), ap);
nm_ap_unref (ap);
}
nm_ap_set_essid (ap, essid);
}
}
/* If we found a valid access point, use it */
if (ap)
{
NMAccessPoint *tmp_ap;
/* Now that this AP has an essid, copy over encryption keys and whatnot */
if ((tmp_ap = nm_ap_list_get_ap_by_essid (dev->app_data->allowed_ap_list, nm_ap_get_essid (ap))))
{
nm_ap_set_enc_key_source (ap, nm_ap_get_enc_key_source (tmp_ap), nm_ap_get_enc_method (tmp_ap));
nm_ap_set_invalid (ap, nm_ap_get_invalid (tmp_ap));
nm_ap_set_timestamp (ap, nm_ap_get_timestamp (tmp_ap));
}
/* Use the encryption key and type the user sent us if its valid */
if ((key_type != NM_ENC_TYPE_UNKNOWN) && key && strlen (key))
nm_ap_set_enc_key_source (ap, key, key_type);
nm_device_set_best_ap (dev, ap);
nm_device_freeze_best_ap (dev);
nm_device_activation_cancel (dev);
success = TRUE;
}
return (success);
}
/*
* nm_device_do_normal_scan
*
* Scan for access points on cards that support wireless scanning.
*
*/
static void nm_device_do_normal_scan (NMDevice *dev)
{
int iwlib_socket;
NMData *data;
g_return_if_fail (dev != NULL);
g_return_if_fail (dev->app_data != NULL);
/* Test devices shouldn't get here since we fake the AP list earlier */
g_return_if_fail (!dev->test_device);
data = (NMData *)dev->app_data;
/* Device must be up before we can scan */
if (!nm_device_is_up (dev))
nm_device_bring_up (dev);
g_usleep (G_USEC_PER_SEC);
iwlib_socket = iw_sockets_open ();
if (iwlib_socket >= 0)
{
wireless_scan_head scan_results = { NULL, 0 };
wireless_scan *tmp_ap;
int err;
NMAccessPointList *old_ap_list = NULL;
NMAccessPointList *new_scan_list = NULL;
NMAccessPointList *earliest_scan = NULL;
gboolean have_blank_essids = FALSE;
NMAPListIter *iter;
NMAccessPoint *artificial_ap;
NMNetworkMode orig_mode = NETWORK_MODE_INFRA;
double orig_freq;
int orig_rate;
orig_mode = nm_device_get_mode (dev);
orig_freq = nm_device_get_frequency (dev);
orig_rate = nm_device_get_bitrate (dev);
nm_device_set_mode (dev, NETWORK_MODE_INFRA);
err = iw_scan (iwlib_socket, (char *)nm_device_get_iface (dev), WIRELESS_EXT, &scan_results);
if ((err == -1) && (errno == ENODATA))
{
/* Card hasn't had time yet to compile full access point list.
* Give it some more time and scan again. If that doesn't work
* give up. Cards that need to scan more channels (Atheros 5212
* based cards, for example) need more time here.
*/
g_usleep ((G_USEC_PER_SEC * nm_device_get_association_pause_value (dev)) / 2);
err = iw_scan (iwlib_socket, (char *)nm_device_get_iface (dev), WIRELESS_EXT, &scan_results);
if (err == -1)
{
nm_device_set_mode (dev, orig_mode);
nm_device_set_frequency (dev, orig_freq);
nm_device_set_bitrate (dev, orig_rate);
close (iwlib_socket);
return;
}
}
nm_device_set_mode (dev, orig_mode);
nm_device_set_frequency (dev, orig_freq);
nm_device_set_bitrate (dev, orig_rate);
/* New list for current scan data */
new_scan_list = nm_ap_list_new (NETWORK_TYPE_DEVICE);
if (!new_scan_list)
{
nm_dispose_scan_results (scan_results.result);
close (iwlib_socket);
return;
}
/* Shift all previous cached scan results and dispose of the oldest one. */
earliest_scan = dev->options.wireless.cached_ap_list3;
dev->options.wireless.cached_ap_list3 = dev->options.wireless.cached_ap_list2;
dev->options.wireless.cached_ap_list2 = dev->options.wireless.cached_ap_list1;
dev->options.wireless.cached_ap_list1 = new_scan_list;
/* Iterate over scan results and pick a "most" preferred access point. */
tmp_ap = scan_results.result;
while (tmp_ap)
{
/* We need at least an ESSID or a MAC address for each access point */
if (tmp_ap->b.has_essid || tmp_ap->has_ap_addr)
{
NMAccessPoint *nm_ap = nm_ap_new ();
/* Copy over info from scan to local structure */
/* NOTE: some Cisco products actually broadcast "<hidden>" as their ESSID when they
* are set to not broadcast it, rather than just broadcasting a blank ESSID.
*/
if ( !tmp_ap->b.has_essid
|| (tmp_ap->b.essid && !strlen (tmp_ap->b.essid))
|| (tmp_ap->b.essid && !strcmp (tmp_ap->b.essid, "<hidden>")))
{
nm_ap_set_essid (nm_ap, NULL);
have_blank_essids = TRUE;
}
else
nm_ap_set_essid (nm_ap, tmp_ap->b.essid);
if (tmp_ap->b.has_key && (tmp_ap->b.key_flags & IW_ENCODE_DISABLED))
nm_ap_set_encrypted (nm_ap, FALSE);
else
nm_ap_set_encrypted (nm_ap, TRUE);
if (tmp_ap->has_ap_addr)
nm_ap_set_address (nm_ap, (const struct ether_addr *)(tmp_ap->ap_addr.sa_data));
if (tmp_ap->b.has_mode)
{
NMNetworkMode mode = NETWORK_MODE_INFRA;
switch (tmp_ap->b.mode)
{
case IW_MODE_INFRA:
mode = NETWORK_MODE_INFRA;
break;
case IW_MODE_ADHOC:
mode = NETWORK_MODE_ADHOC;
break;
default:
mode = NETWORK_MODE_INFRA;
break;
}
nm_ap_set_mode (nm_ap, mode);
}
else
nm_ap_set_mode (nm_ap, NETWORK_MODE_INFRA);
nm_ap_set_strength (nm_ap, nm_wireless_qual_to_percent (dev, &(tmp_ap->stats.qual)));
if (tmp_ap->b.has_freq)
nm_ap_set_freq (nm_ap, tmp_ap->b.freq);
/* Add the AP to the device's AP list */
nm_ap_list_append_ap (dev->options.wireless.cached_ap_list1, nm_ap);
nm_ap_unref (nm_ap);
}
tmp_ap = tmp_ap->next;
}
nm_dispose_scan_results (scan_results.result);
close (iwlib_socket);
/* Compose the current access point list for the card based on the past two scans. This
* is to achieve some stability in the list, since cards don't necessarily return the same
* access point list each scan even if you are standing in the same place.
*/
old_ap_list = nm_device_ap_list_get (dev);
dev->options.wireless.ap_list = nm_ap_list_combine (dev->options.wireless.cached_ap_list1, dev->options.wireless.cached_ap_list2);
/* If any blank ESSID networks were detected in the current scan, try to match their
* AP MAC address with existing ones in previous scans, and if we get a match, copy the
* ESSID over to the newest scan list. This enures that we keep the known ESSID for that
* base station around as long as possible, which allows nm_device_update_best_ap() to do
* its job when the user wanted us to connect to a non-broadcasting network.
*/
if (have_blank_essids)
{
nm_ap_list_copy_essids_by_address (nm_device_ap_list_get (dev), old_ap_list);
nm_ap_list_copy_essids_by_address (nm_device_ap_list_get (dev), dev->app_data->allowed_ap_list);
}
/* Once we have the list, copy in any relevant information from our Allowed list. */
nm_ap_list_copy_properties (nm_device_ap_list_get (dev), dev->app_data->allowed_ap_list);
/* Furthermore, if we have any "artificial" access points, ie ones that exist but don't show up in
* the scan for some reason, copy those over if we are associated with that access point right now.
* Some Cisco cards don't report non-ESSID-broadcasting access points in their scans even though
* the card associates with that AP just fine.
*/
if (old_ap_list && (iter = nm_ap_list_iter_new (old_ap_list)))
{
char *essid = nm_device_get_essid (dev);
while (essid && (artificial_ap = nm_ap_list_iter_next (iter)))
{
/* Copy over the artificial AP from the old list to the new one if
* its the AP the card is currently associated with.
*/
if ( nm_ap_get_essid (artificial_ap)
&& !strcmp (essid, nm_ap_get_essid (artificial_ap))
&& nm_ap_get_artificial (artificial_ap))
nm_ap_list_append_ap (nm_device_ap_list_get (dev), artificial_ap);
}
nm_ap_list_iter_free (iter);
}
if (old_ap_list)
nm_ap_list_unref (old_ap_list);
/* Generate the "old" list from the 3rd and 4th oldest scans we've done */
old_ap_list = nm_ap_list_combine (dev->options.wireless.cached_ap_list3, earliest_scan);
/* Don't need the 4th scan around any more */
if (earliest_scan)
nm_ap_list_unref (earliest_scan);
/* Now do a diff of the old and new networks that we can see, and
* signal any changes over dbus.
*/
nm_ap_list_diff (dev->app_data, dev, old_ap_list, nm_device_ap_list_get (dev));
if (old_ap_list)
nm_ap_list_unref (old_ap_list);
}
else
syslog (LOG_ERR, "nm_device_do_normal_scan() could not get a control socket for the wireless card %s.", nm_device_get_iface (dev) );
}
/*
* nm_device_do_pseudo_scan
*
* Brute-force the allowed access point list to find one that works, if any.
*
* FIXME
* There's probably a better way to do the non-scanning access point discovery
* than brute forcing it like this, but that makes the state machine here oh so
* much more complicated.
*/
static void nm_device_do_pseudo_scan (NMDevice *dev)
{
NMAPListIter *iter;
NMAccessPoint *ap;
g_return_if_fail (dev != NULL);
g_return_if_fail (dev->app_data != NULL);
/* Test devices shouldn't get here since we fake the AP list earlier */
g_return_if_fail (!dev->test_device);
nm_device_ref (dev);
if (!(iter = nm_ap_list_iter_new (dev->app_data->allowed_ap_list)))
return;
nm_device_set_essid (dev, "");
while ((ap = nm_ap_list_iter_next (iter)))
{
gboolean valid = FALSE;
struct ether_addr save_ap_addr;
struct ether_addr cur_ap_addr;
if (!nm_device_is_up (dev));
nm_device_bring_up (dev);
/* Save the MAC address */
nm_device_get_ap_address (dev, &save_ap_addr);
if (nm_ap_get_enc_key_source (ap))
{
char *hashed_key = nm_ap_get_enc_key_hashed (ap);
nm_device_set_enc_key (dev, hashed_key, NM_DEVICE_AUTH_METHOD_SHARED_KEY);
g_free (hashed_key);
}
else
nm_device_set_enc_key (dev, NULL, NM_DEVICE_AUTH_METHOD_NONE);
nm_device_set_essid (dev, nm_ap_get_essid (ap));
/* Wait a bit for association */
g_usleep (G_USEC_PER_SEC * nm_device_get_association_pause_value (dev));
/* Do we have a valid MAC address? */
nm_device_get_ap_address (dev, &cur_ap_addr);
valid = nm_ethernet_address_is_valid (&cur_ap_addr);
/* If the ap address we had before, and the ap address we
* have now, are the same, AP is invalid. Certain cards (orinoco)
* will let the essid change, but the the card won't actually de-associate
* from the previous access point if it can't associate with the new one
* (ie signal too weak, etc).
*/
if (valid && (memcmp (&save_ap_addr, &cur_ap_addr, sizeof (struct ether_addr)) == 0))
valid = FALSE;
if (valid)
{
syslog(LOG_INFO, "%s: setting AP '%s' best", nm_device_get_iface (dev), nm_ap_get_essid (ap));
nm_device_set_best_ap (dev, ap);
nm_data_mark_state_changed (dev->app_data);
break;
}
}
nm_ap_list_iter_free (iter);
nm_device_unref (dev);
}
/*
* nm_device_fake_ap_list
*
* Fake the access point list, used for test devices.
*
*/
static void nm_device_fake_ap_list (NMDevice *dev)
{
#define NUM_FAKE_APS 4
int i;
NMAccessPointList *old_ap_list = nm_device_ap_list_get (dev);
char *fake_essids[NUM_FAKE_APS] = { "green", "bay", "packers", "rule" };
struct ether_addr fake_addrs[NUM_FAKE_APS] = {{{0x70, 0x37, 0x03, 0x70, 0x37, 0x03}},
{{0x12, 0x34, 0x56, 0x78, 0x90, 0xab}},
{{0xcd, 0xef, 0x12, 0x34, 0x56, 0x78}},
{{0x90, 0xab, 0xcd, 0xef, 0x12, 0x34}} };
guint8 fake_qualities[NUM_FAKE_APS] = { 150, 26, 200, 100 };
double fake_freqs[NUM_FAKE_APS] = { 3.1416, 4.1416, 5.1415, 6.1415 };
gboolean fake_enc[NUM_FAKE_APS] = { FALSE, TRUE, FALSE, TRUE };
g_return_if_fail (dev != NULL);
g_return_if_fail (dev->app_data != NULL);
dev->options.wireless.ap_list = nm_ap_list_new (NETWORK_TYPE_DEVICE);
for (i = 0; i < NUM_FAKE_APS; i++)
{
NMAccessPoint *nm_ap = nm_ap_new ();
NMAccessPoint *list_ap;
/* Copy over info from scan to local structure */
nm_ap_set_essid (nm_ap, fake_essids[i]);
if (fake_enc[i])
nm_ap_set_encrypted (nm_ap, FALSE);
else
nm_ap_set_encrypted (nm_ap, TRUE);
nm_ap_set_address (nm_ap, (const struct ether_addr *)(&fake_addrs[i]));
nm_ap_set_strength (nm_ap, fake_qualities[i]);
nm_ap_set_freq (nm_ap, fake_freqs[i]);
/* Merge settings from wireless networks, mainly Keys */
if ((list_ap = nm_ap_list_get_ap_by_essid (dev->app_data->allowed_ap_list, nm_ap_get_essid (nm_ap))))
{
nm_ap_set_timestamp (nm_ap, nm_ap_get_timestamp (list_ap));
nm_ap_set_enc_key_source (nm_ap, nm_ap_get_enc_key_source (list_ap), nm_ap_get_enc_method (list_ap));
}
/* Add the AP to the device's AP list */
nm_device_ap_list_add_ap (dev, nm_ap);
}
if (dev == dev->app_data->active_device)
nm_ap_list_diff (dev->app_data, dev, old_ap_list, nm_device_ap_list_get (dev));
if (old_ap_list)
nm_ap_list_unref (old_ap_list);
}
/*
* nm_device_do_wireless_scan
*
* Get a list of access points this device can see.
*
*/
void nm_device_do_wireless_scan (NMDevice *dev)
{
NMAccessPoint *best_ap = NULL;
gboolean do_scan = TRUE;
g_return_if_fail (dev != NULL);
g_return_if_fail (dev->app_data != NULL);
g_return_if_fail (nm_device_is_wireless (dev));
if (!nm_try_acquire_mutex (dev->options.wireless.scan_mutex, __FUNCTION__))
return;
/* Compose a fake list of access points */
if (dev->test_device)
{
nm_device_fake_ap_list (dev);
nm_unlock_mutex (dev->options.wireless.scan_mutex, __FUNCTION__);
return;
}
if ((best_ap = nm_device_get_best_ap (dev)))
{
/* Don't pseudo-scan when we already have a connection. */
if (!nm_device_get_supports_wireless_scan (dev))
{
struct ether_addr ap_addr;
/* We can't pseudo-scan without switching APs, therefore
* if the card has a valid access point and its an allowed
* access point, don't pseudo-scan for others.
*/
nm_device_get_ap_address (dev, &ap_addr);
if ( nm_ethernet_address_is_valid (&ap_addr)
&& nm_ap_list_get_ap_by_essid (dev->app_data->allowed_ap_list, nm_device_get_essid (dev)))
do_scan = FALSE;
}
nm_ap_unref (best_ap);
}
if (do_scan)
{
if (nm_device_get_supports_wireless_scan (dev))
nm_device_do_normal_scan (dev);
else
nm_device_do_pseudo_scan (dev);
}
nm_unlock_mutex (dev->options.wireless.scan_mutex, __FUNCTION__);
}
/* System config data accessors */
gboolean nm_device_config_get_use_dhcp (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, 0);
return (dev->config_info.use_dhcp);
}
void nm_device_config_set_use_dhcp (NMDevice *dev, gboolean use_dhcp)
{
g_return_if_fail (dev != NULL);
dev->config_info.use_dhcp = use_dhcp;
}
guint32 nm_device_config_get_ip4_address (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, 0);
return (dev->config_info.ip4_address);
}
void nm_device_config_set_ip4_address (NMDevice *dev, guint32 addr)
{
g_return_if_fail (dev != NULL);
dev->config_info.ip4_address = addr;
}
guint32 nm_device_config_get_ip4_gateway (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, 0);
return (dev->config_info.ip4_gateway);
}
void nm_device_config_set_ip4_gateway (NMDevice *dev, guint32 gateway)
{
g_return_if_fail (dev != NULL);
dev->config_info.ip4_gateway = gateway;
}
guint32 nm_device_config_get_ip4_netmask (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, 0);
return (dev->config_info.ip4_netmask);
}
void nm_device_config_set_ip4_netmask (NMDevice *dev, guint32 netmask)
{
g_return_if_fail (dev != NULL);
dev->config_info.ip4_netmask = netmask;
}
guint32 nm_device_config_get_ip4_broadcast (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, 0);
return (dev->config_info.ip4_broadcast);
}
void nm_device_config_set_ip4_broadcast (NMDevice *dev, guint32 broadcast)
{
g_return_if_fail (dev != NULL);
dev->config_info.ip4_broadcast = broadcast;
}
/****************************************/
/* Code ripped from HAL */
/* minor modifications made for */
/* integration with NLM */
/****************************************/
/** Read a word from the MII transceiver management registers
*
* @param iface Which interface
* @param location Which register
* @return Word that is read
*/
static guint16 mdio_read (int sockfd, struct ifreq *ifr, int location, gboolean new_ioctl_nums)
{
guint16 *data = (guint16 *) &(ifr->ifr_data);
data[1] = location;
if (ioctl (sockfd, new_ioctl_nums ? 0x8948 : SIOCDEVPRIVATE + 1, ifr) < 0)
{
syslog(LOG_ERR, "SIOCGMIIREG on %s failed: %s", ifr->ifr_name, strerror (errno));
return -1;
}
return data[3];
}
static gboolean mii_get_link (NMDevice *dev)
{
int sockfd;
struct ifreq ifr;
gboolean new_ioctl_nums;
guint16 status_word;
gboolean link_active = FALSE;
sockfd = socket (AF_INET, SOCK_DGRAM, 0);
if (sockfd < 0)
{
syslog (LOG_ERR, "cannot open socket on interface %s; errno=%d", nm_device_get_iface (dev), errno);
return (FALSE);
}
snprintf (ifr.ifr_name, IFNAMSIZ, nm_device_get_iface (dev));
if (ioctl (sockfd, 0x8947, &ifr) >= 0)
new_ioctl_nums = TRUE;
else if (ioctl (sockfd, SIOCDEVPRIVATE, &ifr) >= 0)
new_ioctl_nums = FALSE;
else
{
syslog (LOG_ERR, "SIOCGMIIPHY on %s failed: %s", ifr.ifr_name, strerror (errno));
close (sockfd);
return (FALSE);
}
/* Refer to http://www.scyld.com/diag/mii-status.html for
* the full explanation of the numbers
*
* 0x8000 Capable of 100baseT4.
* 0x7800 Capable of 10/100 HD/FD (most common).
* 0x0040 Preamble suppression permitted.
* 0x0020 Autonegotiation complete.
* 0x0010 Remote fault.
* 0x0008 Capable of Autonegotiation.
* 0x0004 Link established ("sticky"* on link failure)
* 0x0002 Jabber detected ("sticky"* on transmit jabber)
* 0x0001 Extended MII register exist.
*
*/
/* We have to read it twice to clear any "sticky" bits */
status_word = mdio_read (sockfd, &ifr, 1, new_ioctl_nums);
status_word = mdio_read (sockfd, &ifr, 1, new_ioctl_nums);
if ((status_word & 0x0016) == 0x0004)
link_active = TRUE;
else
link_active = FALSE;
close (sockfd);
return (link_active);
}
/****************************************/
/* End Code ripped from HAL */
/****************************************/
/****************************************/
/* Test device routes */
/****************************************/
/*
* nm_device_is_test_device
*
*/
gboolean nm_device_is_test_device (NMDevice *dev)
{
g_return_val_if_fail (dev != NULL, FALSE);
return (dev->test_device);
}
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