static void
add_group_ciphers (NMAccessPoint *ap, NMSettingWirelessSecurity *sec)
{
guint32 num = nm_setting_wireless_security_get_num_groups (sec);
guint32 flags = NM_802_11_AP_SEC_NONE;
guint32 i;
/* If no ciphers are specified, that means "all" WPA ciphers */
if (num == 0) {
flags |= NM_802_11_AP_SEC_GROUP_TKIP | NM_802_11_AP_SEC_GROUP_CCMP;
} else {
for (i = 0; i < num; i++) {
const char *cipher = nm_setting_wireless_security_get_group (sec, i);
if (!strcmp (cipher, "wep40"))
flags |= NM_802_11_AP_SEC_GROUP_WEP40;
else if (!strcmp (cipher, "wep104"))
flags |= NM_802_11_AP_SEC_GROUP_WEP104;
else if (!strcmp (cipher, "tkip"))
flags |= NM_802_11_AP_SEC_GROUP_TKIP;
else if (!strcmp (cipher, "ccmp"))
flags |= NM_802_11_AP_SEC_GROUP_CCMP;
}
}
if (has_proto (sec, PROTO_WPA))
nm_ap_set_wpa_flags (ap, nm_ap_get_wpa_flags (ap) | flags);
if (has_proto (sec, PROTO_RSN))
nm_ap_set_rsn_flags (ap, nm_ap_get_rsn_flags (ap) | flags);
}
static void
add_pair_ciphers (NMAccessPoint *ap, NMSettingWirelessSecurity *sec)
{
guint32 num = nm_setting_wireless_security_get_num_pairwise (sec);
NM80211ApSecurityFlags flags = NM_802_11_AP_SEC_NONE;
guint32 i;
/* If no ciphers are specified, that means "all" WPA ciphers */
if (num == 0) {
flags |= NM_802_11_AP_SEC_PAIR_TKIP | NM_802_11_AP_SEC_PAIR_CCMP;
} else {
for (i = 0; i < num; i++) {
const char *cipher = nm_setting_wireless_security_get_pairwise (sec, i);
if (!strcmp (cipher, "tkip"))
flags |= NM_802_11_AP_SEC_PAIR_TKIP;
else if (!strcmp (cipher, "ccmp"))
flags |= NM_802_11_AP_SEC_PAIR_CCMP;
}
}
if (has_proto (sec, PROTO_WPA))
nm_ap_set_wpa_flags (ap, nm_ap_get_wpa_flags (ap) | flags);
if (has_proto (sec, PROTO_RSN))
nm_ap_set_rsn_flags (ap, nm_ap_get_rsn_flags (ap) | flags);
}
NMAccessPoint *
nm_ap_new_fake_from_connection (NMConnection *connection)
{
NMAccessPoint *ap;
NMSettingWireless *s_wireless;
NMSettingWirelessSecurity *s_wireless_sec;
const GByteArray *ssid;
const char *mode, *band, *key_mgmt;
guint32 channel, flags;
gboolean psk = FALSE, eap = FALSE;
g_return_val_if_fail (connection != NULL, NULL);
s_wireless = NM_SETTING_WIRELESS (nm_connection_get_setting (connection, NM_TYPE_SETTING_WIRELESS));
g_return_val_if_fail (s_wireless != NULL, NULL);
ssid = nm_setting_wireless_get_ssid (s_wireless);
g_return_val_if_fail (ssid != NULL, NULL);
g_return_val_if_fail (ssid->len > 0, NULL);
ap = nm_ap_new ();
nm_ap_set_fake (ap, TRUE);
nm_ap_set_ssid (ap, ssid);
// FIXME: bssid too?
mode = nm_setting_wireless_get_mode (s_wireless);
if (mode) {
if (!strcmp (mode, "infrastructure"))
nm_ap_set_mode (ap, NM_802_11_MODE_INFRA);
else if (!strcmp (mode, "adhoc"))
nm_ap_set_mode (ap, NM_802_11_MODE_ADHOC);
else
goto error;
} else {
nm_ap_set_mode (ap, NM_802_11_MODE_INFRA);
}
band = nm_setting_wireless_get_band (s_wireless);
channel = nm_setting_wireless_get_channel (s_wireless);
if (band && channel) {
guint32 freq = channel_to_freq (channel, band);
if (freq == 0)
goto error;
nm_ap_set_freq (ap, freq);
}
s_wireless_sec = (NMSettingWirelessSecurity *) nm_connection_get_setting (connection, NM_TYPE_SETTING_WIRELESS_SECURITY);
/* Assume presence of a security setting means the AP is encrypted */
if (!s_wireless_sec)
goto done;
key_mgmt = nm_setting_wireless_security_get_key_mgmt (s_wireless_sec);
/* Everything below here uses encryption */
nm_ap_set_flags (ap, nm_ap_get_flags (ap) | NM_802_11_AP_FLAGS_PRIVACY);
/* Static & Dynamic WEP */
if (!strcmp (key_mgmt, "none") || !strcmp (key_mgmt, "ieee8021x"))
goto done;
psk = !strcmp (key_mgmt, "wpa-psk");
eap = !strcmp (key_mgmt, "wpa-eap");
if (psk || eap) {
if (has_proto (s_wireless_sec, PROTO_WPA)) {
flags = nm_ap_get_wpa_flags (ap);
flags |= eap ? NM_802_11_AP_SEC_KEY_MGMT_802_1X : NM_802_11_AP_SEC_KEY_MGMT_PSK;
nm_ap_set_wpa_flags (ap, flags);
}
if (has_proto (s_wireless_sec, PROTO_RSN)) {
flags = nm_ap_get_rsn_flags (ap);
flags |= eap ? NM_802_11_AP_SEC_KEY_MGMT_802_1X : NM_802_11_AP_SEC_KEY_MGMT_PSK;
nm_ap_set_rsn_flags (ap, flags);
}
add_pair_ciphers (ap, s_wireless_sec);
add_group_ciphers (ap, s_wireless_sec);
} else if (!strcmp (key_mgmt, "wpa-none")) {
guint32 i;
/* Ad-Hoc has special requirements: proto=WPA, pairwise=(none), and
* group=TKIP/CCMP (but not both).
*/
flags = nm_ap_get_wpa_flags (ap);
flags |= NM_802_11_AP_SEC_KEY_MGMT_PSK;
/* Clear ciphers; pairwise must be unset anyway, and group gets set below */
flags &= ~( NM_802_11_AP_SEC_PAIR_WEP40
| NM_802_11_AP_SEC_PAIR_WEP104
| NM_802_11_AP_SEC_PAIR_TKIP
| NM_802_11_AP_SEC_PAIR_CCMP
| NM_802_11_AP_SEC_GROUP_WEP40
| NM_802_11_AP_SEC_GROUP_WEP104
| NM_802_11_AP_SEC_GROUP_TKIP
| NM_802_11_AP_SEC_GROUP_CCMP);
for (i = 0; i < nm_setting_wireless_security_get_num_groups (s_wireless_sec); i++) {
if (!strcmp (nm_setting_wireless_security_get_group (s_wireless_sec, i), "ccmp")) {
flags |= NM_802_11_AP_SEC_GROUP_CCMP;
break;
}
}
/* Default to TKIP since not all WPA-capable cards can do CCMP */
if (!(flags & NM_802_11_AP_SEC_GROUP_CCMP))
flags |= NM_802_11_AP_SEC_GROUP_TKIP;
nm_ap_set_wpa_flags (ap, flags);
/* Don't use Ad-Hoc RSN yet */
nm_ap_set_rsn_flags (ap, NM_802_11_AP_SEC_NONE);
}
done:
return ap;
error:
g_object_unref (ap);
return NULL;
}
static void
foreach_property_cb (gpointer key, gpointer value, gpointer user_data)
{
GValue *variant = (GValue *) value;
NMAccessPoint *ap = (NMAccessPoint *) user_data;
if (G_VALUE_HOLDS_BOXED (variant)) {
GArray *array = g_value_get_boxed (variant);
if (!strcmp (key, "ssid")) {
guint32 len = MIN (IW_ESSID_MAX_SIZE, array->len);
GByteArray * ssid;
/* Stupid ieee80211 layer uses <hidden> */
if (((len == 8) || (len == 9))
&& (memcmp (array->data, "<hidden>", 8) == 0))
return;
if (nm_utils_is_empty_ssid ((const guint8 *) array->data, len))
return;
ssid = g_byte_array_sized_new (len);
g_byte_array_append (ssid, (const guint8 *) array->data, len);
nm_ap_set_ssid (ap, ssid);
g_byte_array_free (ssid, TRUE);
} else if (!strcmp (key, "bssid")) {
struct ether_addr addr;
if (array->len != ETH_ALEN)
return;
memset (&addr, 0, sizeof (struct ether_addr));
memcpy (&addr, array->data, ETH_ALEN);
nm_ap_set_address (ap, &addr);
} else if (!strcmp (key, "wpaie")) {
guint8 * ie = (guint8 *) array->data;
guint32 flags = nm_ap_get_wpa_flags (ap);
if (array->len <= 0 || array->len > WPA_MAX_IE_LEN)
return;
flags = nm_ap_add_security_from_ie (flags, ie, array->len);
nm_ap_set_wpa_flags (ap, flags);
} else if (!strcmp (key, "rsnie")) {
guint8 * ie = (guint8 *) array->data;
guint32 flags = nm_ap_get_rsn_flags (ap);
if (array->len <= 0 || array->len > WPA_MAX_IE_LEN)
return;
flags = nm_ap_add_security_from_ie (flags, ie, array->len);
nm_ap_set_rsn_flags (ap, flags);
}
} else if (G_VALUE_HOLDS_INT (variant)) {
gint32 int_val = g_value_get_int (variant);
if (!strcmp (key, "frequency")) {
nm_ap_set_freq (ap, (guint32) int_val);
} else if (!strcmp (key, "maxrate")) {
/* Supplicant reports as b/s, we use Kb/s internally */
nm_ap_set_max_bitrate (ap, int_val / 1000);
}
} else if (G_VALUE_HOLDS_UINT (variant)) {
guint32 val = g_value_get_uint (variant);
if (!strcmp (key, "capabilities")) {
if (val & IEEE80211_CAP_ESS) {
nm_ap_set_mode (ap, NM_802_11_MODE_INFRA);
} else if (val & IEEE80211_CAP_IBSS) {
nm_ap_set_mode (ap, NM_802_11_MODE_ADHOC);
}
if (val & IEEE80211_CAP_PRIVACY) {
guint32 flags = nm_ap_get_flags (ap);
nm_ap_set_flags (ap, flags | NM_802_11_AP_FLAGS_PRIVACY);
}
}
}
}
static void
foreach_property_cb (gpointer key, gpointer value, gpointer user_data)
{
GValue *variant = (GValue *) value;
NMAccessPoint *ap = (NMAccessPoint *) user_data;
if (G_VALUE_HOLDS_BOXED (variant)) {
GArray *array = g_value_get_boxed (variant);
if (!strcmp (key, "SSID")) {
guint32 len = MIN (32, array->len);
GByteArray *ssid;
/* Stupid ieee80211 layer uses <hidden> */
if (((len == 8) || (len == 9))
&& (memcmp (array->data, "<hidden>", 8) == 0))
return;
if (nm_utils_is_empty_ssid ((const guint8 *) array->data, len))
return;
ssid = g_byte_array_sized_new (len);
g_byte_array_append (ssid, (const guint8 *) array->data, len);
nm_ap_set_ssid (ap, ssid);
g_byte_array_free (ssid, TRUE);
} else if (!strcmp (key, "BSSID")) {
struct ether_addr addr;
if (array->len != ETH_ALEN)
return;
memset (&addr, 0, sizeof (struct ether_addr));
memcpy (&addr, array->data, ETH_ALEN);
nm_ap_set_address (ap, &addr);
} else if (!strcmp (key, "Rates")) {
guint32 maxrate = 0;
int i;
/* Find the max AP rate */
for (i = 0; i < array->len; i++) {
guint32 r = g_array_index (array, guint32, i);
if (r > maxrate) {
maxrate = r;
nm_ap_set_max_bitrate (ap, r / 1000);
}
}
} else if (!strcmp (key, "WPA")) {
NM80211ApSecurityFlags flags = nm_ap_get_wpa_flags (ap);
flags |= security_from_dict (g_value_get_boxed (variant));
nm_ap_set_wpa_flags (ap, flags);
} else if (!strcmp (key, "RSN")) {
NM80211ApSecurityFlags flags = nm_ap_get_rsn_flags (ap);
flags |= security_from_dict (g_value_get_boxed (variant));
nm_ap_set_rsn_flags (ap, flags);
}
} else if (G_VALUE_HOLDS_UINT (variant)) {
guint32 val = g_value_get_uint (variant);
if (!strcmp (key, "Frequency"))
nm_ap_set_freq (ap, val);
} else if (G_VALUE_HOLDS_INT (variant)) {
gint val = g_value_get_int (variant);
if (!strcmp (key, "Signal"))
nm_ap_set_strength (ap, nm_ap_utils_level_to_quality (val));
} else if (G_VALUE_HOLDS_STRING (variant)) {
const char *val = g_value_get_string (variant);
if (val && !strcmp (key, "Mode")) {
if (strcmp (val, "infrastructure") == 0)
nm_ap_set_mode (ap, NM_802_11_MODE_INFRA);
else if (strcmp (val, "ad-hoc") == 0)
nm_ap_set_mode (ap, NM_802_11_MODE_ADHOC);
}
} else if (G_VALUE_HOLDS_BOOLEAN (variant)) {
gboolean val = g_value_get_boolean (variant);
if (strcmp (key, "Privacy") == 0) {
if (val) {
NM80211ApFlags flags = nm_ap_get_flags (ap);
nm_ap_set_flags (ap, flags | NM_802_11_AP_FLAGS_PRIVACY);
}
}
}
}
NMAccessPoint *
nm_ap_match_in_list (NMAccessPoint *find_ap,
GSList *ap_list,
gboolean strict_match)
{
GSList *iter;
g_return_val_if_fail (find_ap != NULL, NULL);
for (iter = ap_list; iter; iter = g_slist_next (iter)) {
NMAccessPoint * list_ap = NM_AP (iter->data);
const GByteArray * list_ssid = nm_ap_get_ssid (list_ap);
const struct ether_addr * list_addr = nm_ap_get_address (list_ap);
const GByteArray * find_ssid = nm_ap_get_ssid (find_ap);
const struct ether_addr * find_addr = nm_ap_get_address (find_ap);
/* SSID match; if both APs are hiding their SSIDs,
* let matching continue on BSSID and other properties
*/
if ( (!list_ssid && find_ssid)
|| (list_ssid && !find_ssid)
|| !nm_utils_same_ssid (list_ssid, find_ssid, TRUE))
continue;
/* BSSID match */
if ( (strict_match || nm_ethernet_address_is_valid (find_addr))
&& nm_ethernet_address_is_valid (list_addr)
&& memcmp (list_addr->ether_addr_octet,
find_addr->ether_addr_octet,
ETH_ALEN) != 0) {
continue;
}
/* mode match */
if (nm_ap_get_mode (list_ap) != nm_ap_get_mode (find_ap))
continue;
/* Frequency match */
if (nm_ap_get_freq (list_ap) != nm_ap_get_freq (find_ap))
continue;
/* AP flags */
if (nm_ap_get_flags (list_ap) != nm_ap_get_flags (find_ap))
continue;
if (strict_match) {
if (nm_ap_get_wpa_flags (list_ap) != nm_ap_get_wpa_flags (find_ap))
continue;
if (nm_ap_get_rsn_flags (list_ap) != nm_ap_get_rsn_flags (find_ap))
continue;
} else {
NM80211ApSecurityFlags list_wpa_flags = nm_ap_get_wpa_flags (list_ap);
NM80211ApSecurityFlags find_wpa_flags = nm_ap_get_wpa_flags (find_ap);
NM80211ApSecurityFlags list_rsn_flags = nm_ap_get_rsn_flags (list_ap);
NM80211ApSecurityFlags find_rsn_flags = nm_ap_get_rsn_flags (find_ap);
/* Just ensure that there is overlap in the capabilities */
if ( !capabilities_compatible (list_wpa_flags, find_wpa_flags)
&& !capabilities_compatible (list_rsn_flags, find_rsn_flags))
continue;
}
return list_ap;
}
return NULL;
}
gboolean
nm_ap_check_compatible (NMAccessPoint *self,
NMConnection *connection)
{
NMAccessPointPrivate *priv;
NMSettingWireless *s_wireless;
NMSettingWirelessSecurity *s_wireless_sec;
const char *mode;
const char *band;
const GByteArray *bssid;
guint32 channel;
g_return_val_if_fail (NM_IS_AP (self), FALSE);
g_return_val_if_fail (NM_IS_CONNECTION (connection), FALSE);
priv = NM_AP_GET_PRIVATE (self);
s_wireless = NM_SETTING_WIRELESS (nm_connection_get_setting (connection, NM_TYPE_SETTING_WIRELESS));
if (s_wireless == NULL)
return FALSE;
if (!nm_utils_same_ssid (nm_setting_wireless_get_ssid (s_wireless), priv->ssid, TRUE))
return FALSE;
bssid = nm_setting_wireless_get_bssid (s_wireless);
if (bssid && memcmp (bssid->data, &priv->address, ETH_ALEN))
return FALSE;
mode = nm_setting_wireless_get_mode (s_wireless);
if (mode) {
if (!strcmp (mode, "infrastructure") && (priv->mode != NM_802_11_MODE_INFRA))
return FALSE;
if (!strcmp (mode, "adhoc") && (priv->mode != NM_802_11_MODE_ADHOC))
return FALSE;
}
band = nm_setting_wireless_get_band (s_wireless);
if (band) {
if (!strcmp (band, "a")) {
if (priv->freq < 4915 || priv->freq > 5825)
return FALSE;
} else if (!strcmp (band, "bg")) {
if (priv->freq < 2412 || priv->freq > 2484)
return FALSE;
}
}
channel = nm_setting_wireless_get_channel (s_wireless);
if (channel) {
guint32 ap_chan = nm_utils_wifi_freq_to_channel (priv->freq);
if (channel != ap_chan)
return FALSE;
}
s_wireless_sec = (NMSettingWirelessSecurity *) nm_connection_get_setting (connection,
NM_TYPE_SETTING_WIRELESS_SECURITY);
return nm_setting_wireless_ap_security_compatible (s_wireless,
s_wireless_sec,
nm_ap_get_flags (self),
nm_ap_get_wpa_flags (self),
nm_ap_get_rsn_flags (self),
nm_ap_get_mode (self));
}