/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ /* NetworkManager -- Network link manager * * 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., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * Copyright (C) 2004 - 2008 Red Hat, Inc. * Copyright (C) 2006 - 2008 Novell, Inc. */ #include "wireless-helper.h" #include #include "NetworkManagerAP.h" #include "NetworkManagerUtils.h" #include "nm-utils.h" #include "nm-dbus-manager.h" #include "wpa.h" #include "nm-properties-changed-signal.h" #include "nm-setting-wireless.h" #include "nm-access-point-glue.h" /* * Encapsulates Access Point information */ typedef struct { char *dbus_path; /* Scanned or cached values */ GByteArray * ssid; struct ether_addr address; NM80211Mode mode; gint8 strength; guint32 freq; /* Frequency in MHz; ie 2412 (== 2.412 GHz) */ guint32 max_bitrate;/* Maximum bitrate of the AP in Kbit/s (ie 54000 Kb/s == 54Mbit/s) */ guint32 flags; /* General flags */ guint32 wpa_flags; /* WPA-related flags */ guint32 rsn_flags; /* RSN (WPA2) -related flags */ /* Non-scanned attributes */ gboolean fake; /* Whether or not the AP is from a scan */ gboolean broadcast; /* Whether or not the AP is broadcasting (hidden) */ gboolean user_created; /* Whether or not the AP was created * by the user with "Create network..." * A subset of Ad-Hoc mode. user_created * implies Ad-Hoc, but not necessarily * the other way around. */ glong last_seen; /* Last time the AP was seen in a scan in seconds */ /* Things from user prefs/NetworkManagerInfo */ GTimeVal timestamp; GSList * user_addresses; } NMAccessPointPrivate; #define NM_AP_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_AP, NMAccessPointPrivate)) G_DEFINE_TYPE (NMAccessPoint, nm_ap, G_TYPE_OBJECT) enum { PROPERTIES_CHANGED, LAST_SIGNAL }; static guint signals[LAST_SIGNAL] = { 0 }; enum { PROP_0, PROP_FLAGS, PROP_WPA_FLAGS, PROP_RSN_FLAGS, PROP_SSID, PROP_FREQUENCY, PROP_HW_ADDRESS, PROP_MODE, PROP_MAX_BITRATE, PROP_STRENGTH, LAST_PROP }; static void nm_ap_init (NMAccessPoint *ap) { NMAccessPointPrivate *priv = NM_AP_GET_PRIVATE (ap); priv->dbus_path = NULL; priv->mode = NM_802_11_MODE_INFRA; priv->flags = NM_802_11_AP_FLAGS_NONE; priv->wpa_flags = NM_802_11_AP_SEC_NONE; priv->rsn_flags = NM_802_11_AP_SEC_NONE; priv->broadcast = TRUE; } static void finalize (GObject *object) { NMAccessPointPrivate *priv = NM_AP_GET_PRIVATE (object); g_free (priv->dbus_path); if (priv->ssid) g_byte_array_free (priv->ssid, TRUE); g_slist_foreach (priv->user_addresses, (GFunc)g_free, NULL); g_slist_free (priv->user_addresses); G_OBJECT_CLASS (nm_ap_parent_class)->finalize (object); } static void set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { NMAccessPoint *ap = NM_AP (object); switch (prop_id) { case PROP_FLAGS: nm_ap_set_flags (ap, g_value_get_uint (value)); break; case PROP_WPA_FLAGS: nm_ap_set_wpa_flags (ap, g_value_get_uint (value)); break; case PROP_RSN_FLAGS: nm_ap_set_rsn_flags (ap, g_value_get_uint (value)); break; case PROP_SSID: nm_ap_set_ssid (ap, (GByteArray *) g_value_get_boxed (value)); break; case PROP_FREQUENCY: nm_ap_set_freq (ap, g_value_get_uint (value)); break; case PROP_MODE: nm_ap_set_mode (ap, g_value_get_uint (value)); break; case PROP_MAX_BITRATE: nm_ap_set_max_bitrate (ap, g_value_get_uint (value)); break; case PROP_STRENGTH: nm_ap_set_strength (ap, g_value_get_char (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { NMAccessPointPrivate *priv = NM_AP_GET_PRIVATE (object); GArray * ssid; int len; int i; switch (prop_id) { case PROP_FLAGS: g_value_set_uint (value, priv->flags); break; case PROP_WPA_FLAGS: g_value_set_uint (value, priv->wpa_flags); break; case PROP_RSN_FLAGS: g_value_set_uint (value, priv->rsn_flags); break; case PROP_SSID: len = priv->ssid ? priv->ssid->len : 0; ssid = g_array_sized_new (FALSE, TRUE, sizeof (unsigned char), len); for (i = 0; i < len; i++) g_array_append_val (ssid, priv->ssid->data[i]); g_value_set_boxed (value, ssid); g_array_free (ssid, TRUE); break; case PROP_FREQUENCY: g_value_set_uint (value, priv->freq); break; case PROP_HW_ADDRESS: g_value_take_string (value, nm_ether_ntop (&priv->address)); break; case PROP_MODE: g_value_set_uint (value, priv->mode); break; case PROP_MAX_BITRATE: g_value_set_uint (value, priv->max_bitrate); break; case PROP_STRENGTH: g_value_set_char (value, priv->strength); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void nm_ap_class_init (NMAccessPointClass *ap_class) { GObjectClass *object_class = G_OBJECT_CLASS (ap_class); guint32 all_sec_flags; g_type_class_add_private (ap_class, sizeof (NMAccessPointPrivate)); /* virtual methods */ object_class->set_property = set_property; object_class->get_property = get_property; object_class->finalize = finalize; /* properties */ all_sec_flags = NM_802_11_AP_SEC_NONE | 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 | NM_802_11_AP_SEC_KEY_MGMT_PSK | NM_802_11_AP_SEC_KEY_MGMT_802_1X; g_object_class_install_property (object_class, PROP_FLAGS, g_param_spec_uint (NM_AP_FLAGS, "Flags", "Flags", NM_802_11_AP_FLAGS_NONE, NM_802_11_AP_FLAGS_PRIVACY, NM_802_11_AP_FLAGS_NONE, G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_WPA_FLAGS, g_param_spec_uint (NM_AP_WPA_FLAGS, "WPA Flags", "WPA Flags", NM_802_11_AP_SEC_NONE, all_sec_flags, NM_802_11_AP_SEC_NONE, G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_RSN_FLAGS, g_param_spec_uint (NM_AP_RSN_FLAGS, "RSN Flags", "RSN Flags", NM_802_11_AP_SEC_NONE, all_sec_flags, NM_802_11_AP_SEC_NONE, G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_SSID, g_param_spec_boxed (NM_AP_SSID, "SSID", "SSID", DBUS_TYPE_G_UCHAR_ARRAY, G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_FREQUENCY, g_param_spec_uint (NM_AP_FREQUENCY, "Frequency", "Frequency", 0, 10000, 0, G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_HW_ADDRESS, g_param_spec_string (NM_AP_HW_ADDRESS, "MAC Address", "Hardware MAC address", NULL, G_PARAM_READABLE)); g_object_class_install_property (object_class, PROP_MODE, g_param_spec_uint (NM_AP_MODE, "Mode", "Mode", NM_802_11_MODE_ADHOC, NM_802_11_MODE_INFRA, NM_802_11_MODE_INFRA, G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_MAX_BITRATE, g_param_spec_uint (NM_AP_MAX_BITRATE, "Max Bitrate", "Max Bitrate", 0, G_MAXUINT16, 0, G_PARAM_READWRITE)); g_object_class_install_property (object_class, PROP_STRENGTH, g_param_spec_char (NM_AP_STRENGTH, "Strength", "Strength", G_MININT8, G_MAXINT8, 0, G_PARAM_READWRITE)); /* Signals */ signals[PROPERTIES_CHANGED] = nm_properties_changed_signal_new (object_class, G_STRUCT_OFFSET (NMAccessPointClass, properties_changed)); dbus_g_object_type_install_info (G_TYPE_FROM_CLASS (ap_class), &dbus_glib_nm_access_point_object_info); } void nm_ap_export_to_dbus (NMAccessPoint *ap) { NMAccessPointPrivate *priv; NMDBusManager *mgr; DBusGConnection *g_connection; static guint32 counter = 0; g_return_if_fail (NM_IS_AP (ap)); priv = NM_AP_GET_PRIVATE (ap); if (priv->dbus_path) { nm_warning ("Tried to export AP %s twice.", priv->dbus_path); return; } mgr = nm_dbus_manager_get (); g_assert (mgr); g_connection = nm_dbus_manager_get_connection (mgr); g_assert (g_connection); priv->dbus_path = g_strdup_printf (NM_DBUS_PATH_ACCESS_POINT "/%d", counter++); dbus_g_connection_register_g_object (g_connection, priv->dbus_path, G_OBJECT (ap)); g_object_unref (mgr); } /* * nm_ap_new * * Create a new, blank user access point info structure * */ NMAccessPoint *nm_ap_new (void) { GObject *object; object = g_object_new (NM_TYPE_AP, NULL); if (!object) return NULL; return (NMAccessPoint *) object; } #define IEEE80211_CAP_ESS 0x0001 #define IEEE80211_CAP_IBSS 0x0002 #define IEEE80211_CAP_PRIVACY 0x0010 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 */ if (((len == 8) || (len == 9)) && (memcmp (array->data, "", 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); } } } } NMAccessPoint * nm_ap_new_from_properties (GHashTable *properties) { NMAccessPoint *ap; GTimeVal cur_time; const struct ether_addr * addr; const char bad_bssid1[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; const char bad_bssid2[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; g_return_val_if_fail (properties != NULL, NULL); ap = nm_ap_new (); g_object_freeze_notify (G_OBJECT (ap)); g_hash_table_foreach (properties, foreach_property_cb, ap); /* ignore APs with invalid BSSIDs */ addr = nm_ap_get_address (ap); if ( !(memcmp (addr->ether_addr_octet, bad_bssid1, ETH_ALEN)) || !(memcmp (addr->ether_addr_octet, bad_bssid2, ETH_ALEN))) { g_object_unref (ap); return NULL; } g_get_current_time (&cur_time); nm_ap_set_last_seen (ap, cur_time.tv_sec); if (!nm_ap_get_ssid (ap)) nm_ap_set_broadcast (ap, FALSE); g_object_thaw_notify (G_OBJECT (ap)); return ap; } #define PROTO_WPA "wpa" #define PROTO_RSN "rsn" static gboolean has_proto (NMSettingWirelessSecurity *sec, const char *proto) { guint32 num_protos = nm_setting_wireless_security_get_num_protos (sec); guint32 i; if (num_protos == 0) return TRUE; /* interpret no protos as "all" */ for (i = 0; i < num_protos; i++) { if (!strcmp (nm_setting_wireless_security_get_proto (sec, i), proto)) return TRUE; } return FALSE; } static void add_pair_ciphers (NMAccessPoint *ap, NMSettingWirelessSecurity *sec) { guint32 num = nm_setting_wireless_security_get_num_pairwise (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_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); } 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); } 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; } #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x" #define MAC_ARG(x) ((guint8*)(x))[0],((guint8*)(x))[1],((guint8*)(x))[2],((guint8*)(x))[3],((guint8*)(x))[4],((guint8*)(x))[5] void nm_ap_print_self (NMAccessPoint *ap, const char * prefix) { NMAccessPointPrivate *priv; g_return_if_fail (NM_IS_AP (ap)); priv = NM_AP_GET_PRIVATE (ap); nm_info ("%s'%s' (%p) stamp=%ld flags=0x%X wpa-flags=0x%X rsn-flags=0x%x " "bssid=" MAC_FMT " strength=%d freq=%d rate=%d mode=%d seen=%ld", prefix, priv->ssid ? nm_utils_escape_ssid (priv->ssid->data, priv->ssid->len) : "(none)", ap, priv->timestamp.tv_sec, priv->flags, priv->wpa_flags, priv->rsn_flags, MAC_ARG (priv->address.ether_addr_octet), priv->strength, priv->freq, priv->max_bitrate, priv->mode, priv->last_seen); } const char * nm_ap_get_dbus_path (NMAccessPoint *ap) { g_return_val_if_fail (NM_IS_AP (ap), NULL); return NM_AP_GET_PRIVATE (ap)->dbus_path; } /* * Get/set functions for timestamp * */ const GTimeVal *nm_ap_get_timestamp (const NMAccessPoint *ap) { g_return_val_if_fail (NM_IS_AP (ap), 0); return (&NM_AP_GET_PRIVATE (ap)->timestamp); } void nm_ap_set_timestamp (NMAccessPoint *ap, glong sec, glong usec) { NMAccessPointPrivate *priv; g_return_if_fail (NM_IS_AP (ap)); priv = NM_AP_GET_PRIVATE (ap); priv->timestamp.tv_sec = sec; priv->timestamp.tv_usec = usec; } void nm_ap_set_timestamp_via_timestamp (NMAccessPoint *ap, const GTimeVal *timestamp) { g_return_if_fail (NM_IS_AP (ap)); NM_AP_GET_PRIVATE (ap)->timestamp = *timestamp; } /* * Get/set functions for ssid * */ const GByteArray * nm_ap_get_ssid (const NMAccessPoint *ap) { g_return_val_if_fail (NM_IS_AP (ap), NULL); return NM_AP_GET_PRIVATE (ap)->ssid; } void nm_ap_set_ssid (NMAccessPoint *ap, const GByteArray * ssid) { NMAccessPointPrivate *priv; g_return_if_fail (NM_IS_AP (ap)); priv = NM_AP_GET_PRIVATE (ap); if ((ssid == priv->ssid) && ssid == NULL) return; /* same SSID */ if ((ssid && priv->ssid) && (ssid->len == priv->ssid->len)) { if (!memcmp (ssid->data, priv->ssid->data, ssid->len)) return; } if (priv->ssid) { g_byte_array_free (priv->ssid, TRUE); priv->ssid = NULL; } if (ssid) { priv->ssid = g_byte_array_sized_new (ssid->len); priv->ssid->len = ssid->len; memcpy (priv->ssid->data, ssid->data, ssid->len); } g_object_notify (G_OBJECT (ap), NM_AP_SSID); } guint32 nm_ap_get_flags (NMAccessPoint *ap) { guint32 flags; g_return_val_if_fail (NM_IS_AP (ap), NM_802_11_AP_FLAGS_NONE); g_object_get (ap, NM_AP_FLAGS, &flags, NULL); return flags; } void nm_ap_set_flags (NMAccessPoint *ap, guint32 flags) { NMAccessPointPrivate *priv; g_return_if_fail (NM_IS_AP (ap)); priv = NM_AP_GET_PRIVATE (ap); if (priv->flags != flags) { priv->flags = flags; g_object_notify (G_OBJECT (ap), NM_AP_FLAGS); } } guint32 nm_ap_get_wpa_flags (NMAccessPoint *ap) { guint32 flags; g_return_val_if_fail (NM_IS_AP (ap), NM_802_11_AP_SEC_NONE); g_object_get (ap, NM_AP_WPA_FLAGS, &flags, NULL); return flags; } void nm_ap_set_wpa_flags (NMAccessPoint *ap, guint32 flags) { NMAccessPointPrivate *priv; g_return_if_fail (NM_IS_AP (ap)); priv = NM_AP_GET_PRIVATE (ap); if (priv->wpa_flags != flags) { priv->wpa_flags = flags; g_object_notify (G_OBJECT (ap), NM_AP_WPA_FLAGS); } } guint32 nm_ap_get_rsn_flags (NMAccessPoint *ap) { guint32 flags; g_return_val_if_fail (NM_IS_AP (ap), NM_802_11_AP_SEC_NONE); g_object_get (ap, NM_AP_RSN_FLAGS, &flags, NULL); return flags; } void nm_ap_set_rsn_flags (NMAccessPoint *ap, guint32 flags) { NMAccessPointPrivate *priv; g_return_if_fail (NM_IS_AP (ap)); priv = NM_AP_GET_PRIVATE (ap); if (priv->rsn_flags != flags) { priv->rsn_flags = flags; g_object_notify (G_OBJECT (ap), NM_AP_RSN_FLAGS); } } /* * Get/set functions for address * */ const struct ether_addr * nm_ap_get_address (const NMAccessPoint *ap) { g_return_val_if_fail (NM_IS_AP (ap), NULL); return &NM_AP_GET_PRIVATE (ap)->address; } void nm_ap_set_address (NMAccessPoint *ap, const struct ether_addr * addr) { NMAccessPointPrivate *priv; g_return_if_fail (NM_IS_AP (ap)); g_return_if_fail (addr != NULL); priv = NM_AP_GET_PRIVATE (ap); if (memcmp (addr, &priv->address, sizeof (priv->address))) { memcpy (&NM_AP_GET_PRIVATE (ap)->address, addr, sizeof (struct ether_addr)); g_object_notify (G_OBJECT (ap), NM_AP_HW_ADDRESS); } } /* * Get/set functions for mode (ie Ad-Hoc, Infrastructure, etc) * */ NM80211Mode nm_ap_get_mode (NMAccessPoint *ap) { NM80211Mode mode; g_return_val_if_fail (NM_IS_AP (ap), -1); g_object_get (ap, NM_AP_MODE, &mode, NULL); return mode; } void nm_ap_set_mode (NMAccessPoint *ap, const NM80211Mode mode) { NMAccessPointPrivate *priv; g_return_if_fail (NM_IS_AP (ap)); if (mode == NM_802_11_MODE_ADHOC || mode == NM_802_11_MODE_INFRA) { priv = NM_AP_GET_PRIVATE (ap); if (priv->mode != mode) { priv->mode = mode; g_object_notify (G_OBJECT (ap), NM_AP_MODE); } } else nm_warning ("Invalid AP mode '%d'", mode); } /* * Get/set functions for strength * */ gint8 nm_ap_get_strength (NMAccessPoint *ap) { gint8 strength; g_return_val_if_fail (NM_IS_AP (ap), 0); g_object_get (ap, NM_AP_STRENGTH, &strength, NULL); return strength; } void nm_ap_set_strength (NMAccessPoint *ap, const gint8 strength) { NMAccessPointPrivate *priv; g_return_if_fail (NM_IS_AP (ap)); priv = NM_AP_GET_PRIVATE (ap); if (priv->strength != strength) { priv->strength = strength; g_object_notify (G_OBJECT (ap), NM_AP_STRENGTH); } } /* * Get/set functions for frequency * */ guint32 nm_ap_get_freq (NMAccessPoint *ap) { guint32 freq; g_return_val_if_fail (NM_IS_AP (ap), 0); g_object_get (ap, NM_AP_FREQUENCY, &freq, NULL); return freq; } void nm_ap_set_freq (NMAccessPoint *ap, const guint32 freq) { NMAccessPointPrivate *priv; g_return_if_fail (NM_IS_AP (ap)); priv = NM_AP_GET_PRIVATE (ap); if (priv->freq != freq) { priv->freq = freq; g_object_notify (G_OBJECT (ap), NM_AP_FREQUENCY); } } /* * Get/set functions for max bitrate * */ guint32 nm_ap_get_max_bitrate (NMAccessPoint *ap) { guint32 rate; g_return_val_if_fail (NM_IS_AP (ap), 0); g_object_get (ap, NM_AP_MAX_BITRATE, &rate, NULL); return rate; } void nm_ap_set_max_bitrate (NMAccessPoint *ap, guint32 bitrate) { NMAccessPointPrivate *priv; g_return_if_fail (NM_IS_AP (ap)); priv = NM_AP_GET_PRIVATE (ap); if (priv->max_bitrate != bitrate) { priv->max_bitrate = bitrate; g_object_notify (G_OBJECT (ap), NM_AP_MAX_BITRATE); } } /* * Get/Set functions to indicate that an access point is 'fake', ie whether * or not it was created from scan results */ gboolean nm_ap_get_fake (const NMAccessPoint *ap) { g_return_val_if_fail (NM_IS_AP (ap), FALSE); return NM_AP_GET_PRIVATE (ap)->fake; } void nm_ap_set_fake (NMAccessPoint *ap, gboolean fake) { g_return_if_fail (NM_IS_AP (ap)); NM_AP_GET_PRIVATE (ap)->fake = fake; } /* * Get/Set functions to indicate whether an AP broadcasts its SSID. */ gboolean nm_ap_get_broadcast (NMAccessPoint *ap) { g_return_val_if_fail (NM_IS_AP (ap), TRUE); return NM_AP_GET_PRIVATE (ap)->broadcast; } void nm_ap_set_broadcast (NMAccessPoint *ap, gboolean broadcast) { g_return_if_fail (NM_IS_AP (ap)); NM_AP_GET_PRIVATE (ap)->broadcast = broadcast; } /* * Get/Set functions for how long ago the AP was last seen in a scan. * APs older than a certain date are dropped from the list. * */ glong nm_ap_get_last_seen (const NMAccessPoint *ap) { g_return_val_if_fail (NM_IS_AP (ap), FALSE); return NM_AP_GET_PRIVATE (ap)->last_seen; } void nm_ap_set_last_seen (NMAccessPoint *ap, const glong last_seen) { g_return_if_fail (NM_IS_AP (ap)); NM_AP_GET_PRIVATE (ap)->last_seen = last_seen; } /* * Get/Set functions to indicate that an access point is * user-created, ie whether or not its a network filled with * information from the user and intended to create a new Ad-Hoc * wireless network. * */ gboolean nm_ap_get_user_created (const NMAccessPoint *ap) { g_return_val_if_fail (NM_IS_AP (ap), FALSE); return NM_AP_GET_PRIVATE (ap)->user_created; } void nm_ap_set_user_created (NMAccessPoint *ap, gboolean user_created) { g_return_if_fail (NM_IS_AP (ap)); NM_AP_GET_PRIVATE (ap)->user_created = user_created; } /* * Get/Set functions for user address list * * The internal address list is always "owned" by the AP and * the list returned by nm_ap_get_user_addresses() is a deep copy. * Likewise, when setting the list, a deep copy is made for the * ap's actual list. * */ GSList *nm_ap_get_user_addresses (const NMAccessPoint *ap) { GSList *new = NULL; GSList *elt = NULL; g_return_val_if_fail (NM_IS_AP (ap), NULL); for (elt = NM_AP_GET_PRIVATE (ap)->user_addresses; elt; elt = g_slist_next (elt)) { if (elt->data) new = g_slist_append (new, g_strdup (elt->data)); } /* Return a _deep__copy_ of the address list */ return new; } void nm_ap_set_user_addresses (NMAccessPoint *ap, GSList *list) { NMAccessPointPrivate *priv; GSList *elt = NULL; GSList *new = NULL; g_return_if_fail (NM_IS_AP (ap)); priv = NM_AP_GET_PRIVATE (ap); /* Free existing list */ g_slist_foreach (priv->user_addresses, (GFunc) g_free, NULL); /* Copy new list and set as our own */ for (elt = list; elt; elt = g_slist_next (elt)) { if (elt->data) new = g_slist_append (new, g_ascii_strup (elt->data, -1)); } priv->user_addresses = new; } guint32 nm_ap_add_security_from_ie (guint32 flags, const guint8 *wpa_ie, guint32 length) { wpa_ie_data * cap_data; if (!(cap_data = wpa_parse_wpa_ie (wpa_ie, length))) return NM_802_11_AP_SEC_NONE; /* Pairwise cipher flags */ if (cap_data->pairwise_cipher & IW_AUTH_CIPHER_WEP40) flags |= NM_802_11_AP_SEC_PAIR_WEP40; if (cap_data->pairwise_cipher & IW_AUTH_CIPHER_WEP104) flags |= NM_802_11_AP_SEC_PAIR_WEP104; if (cap_data->pairwise_cipher & IW_AUTH_CIPHER_TKIP) flags |= NM_802_11_AP_SEC_PAIR_TKIP; if (cap_data->pairwise_cipher & IW_AUTH_CIPHER_CCMP) flags |= NM_802_11_AP_SEC_PAIR_CCMP; /* Group cipher flags */ if (cap_data->group_cipher & IW_AUTH_CIPHER_WEP40) flags |= NM_802_11_AP_SEC_GROUP_WEP40; if (cap_data->group_cipher & IW_AUTH_CIPHER_WEP104) flags |= NM_802_11_AP_SEC_GROUP_WEP104; if (cap_data->group_cipher & IW_AUTH_CIPHER_TKIP) flags |= NM_802_11_AP_SEC_GROUP_TKIP; if (cap_data->group_cipher & IW_AUTH_CIPHER_CCMP) flags |= NM_802_11_AP_SEC_GROUP_CCMP; if (cap_data->key_mgmt & IW_AUTH_KEY_MGMT_802_1X) flags |= NM_802_11_AP_SEC_KEY_MGMT_802_1X; if (cap_data->key_mgmt & IW_AUTH_KEY_MGMT_PSK) flags |= NM_802_11_AP_SEC_KEY_MGMT_PSK; g_slice_free (wpa_ie_data, cap_data); return flags; } 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 = 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)); } static gboolean capabilities_compatible (guint32 a_flags, guint32 b_flags) { if (a_flags == b_flags) return TRUE; /* Make sure there's a common key management method */ if (!((a_flags & 0x300) & (b_flags & 0x300))) return FALSE; /* Ensure common pairwise ciphers */ if (!((a_flags & 0xF) & (b_flags & 0xF))) return FALSE; /* Ensure common group ciphers */ if (!((a_flags & 0xF0) & (b_flags & 0xF0))) return FALSE; return TRUE; } 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 { guint32 list_wpa_flags = nm_ap_get_wpa_flags (list_ap); guint32 find_wpa_flags = nm_ap_get_wpa_flags (find_ap); guint32 list_rsn_flags = nm_ap_get_rsn_flags (list_ap); guint32 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; } struct cf_pair { guint32 chan; guint32 freq; }; static struct cf_pair a_table[] = { /* A band */ { 7, 5035 }, { 8, 5040 }, { 9, 5045 }, { 11, 5055 }, { 12, 5060 }, { 16, 5080 }, { 34, 5170 }, { 36, 5180 }, { 38, 5190 }, { 40, 5200 }, { 42, 5210 }, { 44, 5220 }, { 46, 5230 }, { 48, 5240 }, { 50, 5250 }, { 52, 5260 }, { 56, 5280 }, { 58, 5290 }, { 60, 5300 }, { 64, 5320 }, { 100, 5500 }, { 104, 5520 }, { 108, 5540 }, { 112, 5560 }, { 116, 5580 }, { 120, 5600 }, { 124, 5620 }, { 128, 5640 }, { 132, 5660 }, { 136, 5680 }, { 140, 5700 }, { 149, 5745 }, { 152, 5760 }, { 153, 5765 }, { 157, 5785 }, { 160, 5800 }, { 161, 5805 }, { 165, 5825 }, { 183, 4915 }, { 184, 4920 }, { 185, 4925 }, { 187, 4935 }, { 188, 4945 }, { 192, 4960 }, { 196, 4980 }, { 0, -1 } }; static struct cf_pair bg_table[] = { /* B/G band */ { 1, 2412 }, { 2, 2417 }, { 3, 2422 }, { 4, 2427 }, { 5, 2432 }, { 6, 2437 }, { 7, 2442 }, { 8, 2447 }, { 9, 2452 }, { 10, 2457 }, { 11, 2462 }, { 12, 2467 }, { 13, 2472 }, { 14, 2484 }, { 0, -1 } }; guint32 freq_to_channel (guint32 freq) { int i = 0; if (freq > 4900) { while (a_table[i].chan && (a_table[i].freq != freq)) i++; return a_table[i].chan; } else { while (bg_table[i].chan && (bg_table[i].freq != freq)) i++; return bg_table[i].chan; } return 0; } guint32 channel_to_freq (guint32 channel, const char *band) { int i = 0; if (!strcmp (band, "a")) { while (a_table[i].chan && (a_table[i].chan != channel)) i++; return a_table[i].freq; } else if (!strcmp (band, "bg")) { while (bg_table[i].chan && (bg_table[i].chan != channel)) i++; return a_table[i].freq; } return 0; }