/* -*- 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 - 2011 Red Hat, Inc. * Copyright (C) 2006 - 2008 Novell, Inc. */ #include #include #include #include "nm-wifi-ap.h" #include "nm-wifi-ap-utils.h" #include "NetworkManagerUtils.h" #include "nm-utils.h" #include "nm-logging.h" #include "nm-dbus-manager.h" #include "nm-properties-changed-signal.h" #include "nm-setting-wireless.h" #include "nm-glib-compat.h" #include "nm-access-point-glue.h" /* * Encapsulates Access Point information */ typedef struct { char *dbus_path; char *supplicant_path; /* D-Bus object path of this AP from wpa_supplicant */ /* 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) */ NM80211ApFlags flags; /* General flags */ NM80211ApSecurityFlags wpa_flags; /* WPA-related flags */ NM80211ApSecurityFlags rsn_flags; /* RSN (WPA2) -related flags */ /* Non-scanned attributes */ gboolean fake; /* Whether or not the AP is from a scan */ gboolean hotspot; /* Whether the AP is a local device's hotspot network */ gboolean broadcast; /* Whether or not the AP is broadcasting (hidden) */ glong last_seen; /* Last time the AP was seen in a scan in seconds */ } 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); g_free (priv->supplicant_path); if (priv->ssid) g_byte_array_free (priv->ssid, TRUE); 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_schar (value)); break; case PROP_HW_ADDRESS: 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_utils_hwaddr_ntoa (&priv->address, ARPHRD_ETHER)); 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_schar (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); const NM80211ApSecurityFlags 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_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 */ 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_PARAM_CONSTRUCT_ONLY)); 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_PARAM_CONSTRUCT_ONLY)); 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_PARAM_CONSTRUCT_ONLY)); 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_PARAM_CONSTRUCT_ONLY)); 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_PARAM_CONSTRUCT_ONLY)); 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_READWRITE | G_PARAM_CONSTRUCT_ONLY)); 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_PARAM_CONSTRUCT_ONLY)); 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_PARAM_CONSTRUCT_ONLY)); 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 | G_PARAM_CONSTRUCT_ONLY)); /* 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; static guint32 counter = 0; g_return_if_fail (NM_IS_AP (ap)); priv = NM_AP_GET_PRIVATE (ap); if (priv->dbus_path) { nm_log_err (LOGD_CORE, "Tried to export AP %s twice.", priv->dbus_path); return; } mgr = nm_dbus_manager_get (); priv->dbus_path = g_strdup_printf (NM_DBUS_PATH_ACCESS_POINT "/%d", counter++); nm_dbus_manager_register_object (mgr, priv->dbus_path, ap); g_object_unref (mgr); } /* * nm_ap_new * * Create a new, blank user access point info structure * */ static NMAccessPoint * nm_ap_new (void) { return (NMAccessPoint *) g_object_new (NM_TYPE_AP, NULL); } static NM80211ApSecurityFlags pair_to_flags (const char *str) { g_return_val_if_fail (str != NULL, NM_802_11_AP_SEC_NONE); if (strcmp (str, "wep40") == 0) return NM_802_11_AP_SEC_PAIR_WEP40; if (strcmp (str, "wep104") == 0) return NM_802_11_AP_SEC_PAIR_WEP104; if (strcmp (str, "tkip") == 0) return NM_802_11_AP_SEC_PAIR_TKIP; if (strcmp (str, "ccmp") == 0) return NM_802_11_AP_SEC_PAIR_CCMP; return NM_802_11_AP_SEC_NONE; } static NM80211ApSecurityFlags group_to_flags (const char *str) { g_return_val_if_fail (str != NULL, NM_802_11_AP_SEC_NONE); if (strcmp (str, "wep40") == 0) return NM_802_11_AP_SEC_GROUP_WEP40; if (strcmp (str, "wep104") == 0) return NM_802_11_AP_SEC_GROUP_WEP104; if (strcmp (str, "tkip") == 0) return NM_802_11_AP_SEC_GROUP_TKIP; if (strcmp (str, "ccmp") == 0) return NM_802_11_AP_SEC_GROUP_CCMP; return NM_802_11_AP_SEC_NONE; } static NM80211ApSecurityFlags security_from_dict (GHashTable *security) { GValue *value; NM80211ApSecurityFlags flags = NM_802_11_AP_SEC_NONE; const char **items, **iter; value = g_hash_table_lookup (security, "KeyMgmt"); if (value) { items = g_value_get_boxed (value); for (iter = items; iter && *iter; iter++) { if (strcmp (*iter, "wpa-psk") == 0) flags |= NM_802_11_AP_SEC_KEY_MGMT_PSK; else if (strcmp (*iter, "wpa-eap") == 0) flags |= NM_802_11_AP_SEC_KEY_MGMT_802_1X; } } value = g_hash_table_lookup (security, "Pairwise"); if (value) { items = g_value_get_boxed (value); for (iter = items; iter && *iter; iter++) flags |= pair_to_flags (*iter); } value = g_hash_table_lookup (security, "Group"); if (value) flags |= group_to_flags (g_value_get_string (value)); return flags; } 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 */ 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, "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_new_from_properties (const char *supplicant_path, GHashTable *properties) { NMAccessPoint *ap; 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); nm_ap_set_supplicant_path (ap, supplicant_path); /* 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; } nm_ap_set_last_seen (ap, (guint32) time (NULL)); 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); 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); } static void add_group_ciphers (NMAccessPoint *ap, NMSettingWirelessSecurity *sec) { guint32 num = nm_setting_wireless_security_get_num_groups (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_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; NM80211ApSecurityFlags flags; gboolean psk = FALSE, eap = FALSE; g_return_val_if_fail (connection != NULL, NULL); s_wireless = nm_connection_get_setting_wireless (connection); 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 if (!strcmp (mode, "ap")) { nm_ap_set_mode (ap, NM_802_11_MODE_INFRA); NM_AP_GET_PRIVATE (ap)->hotspot = TRUE; } 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 = nm_utils_wifi_channel_to_freq (channel, band); if (freq == 0) goto error; nm_ap_set_freq (ap, freq); } s_wireless_sec = nm_connection_get_setting_wireless_security (connection); /* 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_dump (NMAccessPoint *ap, const char *prefix) { NMAccessPointPrivate *priv; g_return_if_fail (NM_IS_AP (ap)); priv = NM_AP_GET_PRIVATE (ap); nm_log_dbg (LOGD_WIFI_SCAN, "%s'%s' (%p)", prefix, priv->ssid ? nm_utils_escape_ssid (priv->ssid->data, priv->ssid->len) : "(none)", ap); nm_log_dbg (LOGD_WIFI_SCAN, " BSSID " MAC_FMT, MAC_ARG (priv->address.ether_addr_octet)); nm_log_dbg (LOGD_WIFI_SCAN, " mode %d", priv->mode); nm_log_dbg (LOGD_WIFI_SCAN, " flags 0x%X", priv->flags); nm_log_dbg (LOGD_WIFI_SCAN, " wpa flags 0x%X", priv->wpa_flags); nm_log_dbg (LOGD_WIFI_SCAN, " rsn flags 0x%X", priv->rsn_flags); nm_log_dbg (LOGD_WIFI_SCAN, " quality %d", priv->strength); nm_log_dbg (LOGD_WIFI_SCAN, " frequency %d", priv->freq); nm_log_dbg (LOGD_WIFI_SCAN, " max rate %d", priv->max_bitrate); nm_log_dbg (LOGD_WIFI_SCAN, " last-seen %ld", 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; } const char * nm_ap_get_supplicant_path (NMAccessPoint *ap) { g_return_val_if_fail (NM_IS_AP (ap), NULL); return NM_AP_GET_PRIVATE (ap)->supplicant_path; } void nm_ap_set_supplicant_path (NMAccessPoint *ap, const char *path) { g_return_if_fail (NM_IS_AP (ap)); g_return_if_fail (path != NULL); g_free (NM_AP_GET_PRIVATE (ap)->supplicant_path); NM_AP_GET_PRIVATE (ap)->supplicant_path = g_strdup (path); } /* * 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) { /* Should never get zero-length SSIDs */ g_warn_if_fail (ssid->len > 0); if (ssid->len) { 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); } NM80211ApFlags nm_ap_get_flags (NMAccessPoint *ap) { g_return_val_if_fail (NM_IS_AP (ap), NM_802_11_AP_SEC_NONE); return NM_AP_GET_PRIVATE (ap)->flags; } void nm_ap_set_flags (NMAccessPoint *ap, NM80211ApFlags 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); } } NM80211ApSecurityFlags nm_ap_get_wpa_flags (NMAccessPoint *ap) { g_return_val_if_fail (NM_IS_AP (ap), NM_802_11_AP_SEC_NONE); return NM_AP_GET_PRIVATE (ap)->wpa_flags; } void nm_ap_set_wpa_flags (NMAccessPoint *ap, NM80211ApSecurityFlags 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); } } NM80211ApSecurityFlags nm_ap_get_rsn_flags (NMAccessPoint *ap) { g_return_val_if_fail (NM_IS_AP (ap), NM_802_11_AP_SEC_NONE); return NM_AP_GET_PRIVATE (ap)->rsn_flags; } void nm_ap_set_rsn_flags (NMAccessPoint *ap, NM80211ApSecurityFlags 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)); g_return_if_fail ( 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); } } gboolean nm_ap_is_hotspot (NMAccessPoint *ap) { g_return_val_if_fail (NM_IS_AP (ap), FALSE); return NM_AP_GET_PRIVATE (ap)->hotspot; } /* * 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; } 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_connection_get_setting_wireless (connection); 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; if ( !strcmp (mode, "ap") && (priv->mode != NM_802_11_MODE_INFRA || priv->hotspot != TRUE)) 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 = nm_connection_get_setting_wireless_security (connection); 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)); } gboolean nm_ap_complete_connection (NMAccessPoint *self, NMConnection *connection, gboolean lock_bssid, GError **error) { NMAccessPointPrivate *priv = NM_AP_GET_PRIVATE (self); g_return_val_if_fail (connection != NULL, FALSE); return nm_ap_utils_complete_connection (priv->ssid, priv->address.ether_addr_octet, priv->mode, priv->flags, priv->wpa_flags, priv->rsn_flags, connection, lock_bssid, error); } static gboolean capabilities_compatible (NM80211ApSecurityFlags a_flags, NM80211ApSecurityFlags 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 { 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; }