/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2013 - 2017 Red Hat, Inc.
*/
/**
* SECTION:nmt-connect-connection-list
* @short_description: Connection list for "nmtui connect"
*
* #NmtConnectConnectionList is the list of devices, connections, and
* access points displayed by "nmtui connect".
*/
#include "nm-default.h"
#include <stdlib.h>
#include "nmtui.h"
#include "nmt-connect-connection-list.h"
#include "nm-client-utils.h"
G_DEFINE_TYPE(NmtConnectConnectionList, nmt_connect_connection_list, NMT_TYPE_NEWT_LISTBOX)
#define NMT_CONNECT_CONNECTION_LIST_GET_PRIVATE(o) \
(G_TYPE_INSTANCE_GET_PRIVATE((o), \
NMT_TYPE_CONNECT_CONNECTION_LIST, \
NmtConnectConnectionListPrivate))
typedef struct {
char * name;
NMDevice *device;
int sort_order;
GSList *conns;
} NmtConnectDevice;
typedef struct {
const char *name;
char * ssid;
NMConnection * conn;
NMAccessPoint * ap;
NMDevice * device;
NMActiveConnection *active;
} NmtConnectConnection;
typedef struct {
GSList *nmt_devices;
} NmtConnectConnectionListPrivate;
/**
* nmt_connect_connection_list_new:
*
* Creates a new #NmtConnectConnectionList
*
* Returns: a new #NmtConnectConnectionList
*/
NmtNewtWidget *
nmt_connect_connection_list_new(void)
{
return g_object_new(NMT_TYPE_CONNECT_CONNECTION_LIST,
"flags",
NMT_NEWT_LISTBOX_SCROLL | NMT_NEWT_LISTBOX_BORDER,
"skip-null-keys",
TRUE,
NULL);
}
static void
nmt_connect_connection_list_init(NmtConnectConnectionList *list)
{}
static void
nmt_connect_connection_free(NmtConnectConnection *nmtconn)
{
g_clear_object(&nmtconn->conn);
g_clear_object(&nmtconn->ap);
g_clear_object(&nmtconn->active);
g_free(nmtconn->ssid);
g_slice_free(NmtConnectConnection, nmtconn);
}
static void
nmt_connect_device_free(NmtConnectDevice *nmtdev)
{
nm_clear_g_free(&nmtdev->name);
g_clear_object(&nmtdev->device);
g_slist_free_full(nmtdev->conns, (GDestroyNotify) nmt_connect_connection_free);
g_slice_free(NmtConnectDevice, nmtdev);
}
static const char *device_sort_order[] = {"NMDeviceEthernet",
"NMDeviceInfiniband",
"NMDeviceWifi",
NM_SETTING_VLAN_SETTING_NAME,
NM_SETTING_BOND_SETTING_NAME,
NM_SETTING_TEAM_SETTING_NAME,
NM_SETTING_BRIDGE_SETTING_NAME,
NM_SETTING_IP_TUNNEL_SETTING_NAME,
"NMDeviceModem",
"NMDeviceBt"};
static const int device_sort_order_len = G_N_ELEMENTS(device_sort_order);
static int
get_sort_order_for_device(NMDevice *device)
{
const char *type;
int i;
type = G_OBJECT_TYPE_NAME(device);
for (i = 0; i < device_sort_order_len; i++) {
if (!strcmp(type, device_sort_order[i]))
return i;
}
return -1;
}
static int
get_sort_order_for_connection(NMConnection *conn)
{
NMSettingConnection *s_con;
const char * type;
int i;
s_con = nm_connection_get_setting_connection(conn);
type = nm_setting_connection_get_connection_type(s_con);
for (i = 0; i < device_sort_order_len; i++) {
if (!strcmp(type, device_sort_order[i]))
return i;
}
return -1;
}
static int
sort_connections(gconstpointer a, gconstpointer b)
{
NmtConnectConnection *nmta = (NmtConnectConnection *) a;
NmtConnectConnection *nmtb = (NmtConnectConnection *) b;
/* If nmta and nmtb both have NMConnections, sort them by timestamp */
if (nmta->conn && nmtb->conn) {
NMSettingConnection *s_con_a, *s_con_b;
guint64 time_a, time_b;
s_con_a = nm_connection_get_setting_connection(nmta->conn);
s_con_b = nm_connection_get_setting_connection(nmtb->conn);
time_a = nm_setting_connection_get_timestamp(s_con_a);
time_b = nm_setting_connection_get_timestamp(s_con_b);
return (int) (time_b - time_a);
}
/* If one is an NMConnection and the other is an NMAccessPoint, the
* connection comes first.
*/
if (nmta->conn)
return -1;
else if (nmtb->conn)
return 1;
g_return_val_if_fail(nmta->ap && nmtb->ap, 0);
/* If both are access points, then sort by strength */
return nm_access_point_get_strength(nmtb->ap) - nm_access_point_get_strength(nmta->ap);
}
static void
add_connections_for_device(NmtConnectDevice *nmtdev, const GPtrArray *connections)
{
int i;
for (i = 0; i < connections->len; i++) {
NMConnection * conn = connections->pdata[i];
NMSettingConnection *s_con;
s_con = nm_connection_get_setting_connection(conn);
if (nm_setting_connection_get_master(s_con))
continue;
if (nm_device_connection_valid(nmtdev->device, conn)) {
NmtConnectConnection *nmtconn = g_slice_new0(NmtConnectConnection);
nmtconn->name = nm_connection_get_id(conn);
nmtconn->device = nmtdev->device;
nmtconn->conn = g_object_ref(conn);
nmtdev->conns = g_slist_prepend(nmtdev->conns, nmtconn);
}
}
}
/* stolen from nm-applet */
static char *
hash_ap(NMAccessPoint *ap)
{
unsigned char input[66];
GBytes * ssid;
NM80211Mode mode;
guint32 flags;
guint32 wpa_flags;
guint32 rsn_flags;
memset(&input[0], 0, sizeof(input));
ssid = nm_access_point_get_ssid(ap);
if (ssid)
memcpy(input, g_bytes_get_data(ssid, NULL), g_bytes_get_size(ssid));
mode = nm_access_point_get_mode(ap);
if (mode == NM_802_11_MODE_INFRA)
input[32] |= (1 << 0);
else if (mode == NM_802_11_MODE_ADHOC)
input[32] |= (1 << 1);
else
input[32] |= (1 << 2);
/* Separate out no encryption, WEP-only, and WPA-capable */
flags = nm_access_point_get_flags(ap);
wpa_flags = nm_access_point_get_wpa_flags(ap);
rsn_flags = nm_access_point_get_rsn_flags(ap);
if (!(flags & NM_802_11_AP_FLAGS_PRIVACY) && (wpa_flags == NM_802_11_AP_SEC_NONE)
&& (rsn_flags == NM_802_11_AP_SEC_NONE))
input[32] |= (1 << 3);
else if ((flags & NM_802_11_AP_FLAGS_PRIVACY) && (wpa_flags == NM_802_11_AP_SEC_NONE)
&& (rsn_flags == NM_802_11_AP_SEC_NONE))
input[32] |= (1 << 4);
else if (!(flags & NM_802_11_AP_FLAGS_PRIVACY) && (wpa_flags != NM_802_11_AP_SEC_NONE)
&& (rsn_flags != NM_802_11_AP_SEC_NONE))
input[32] |= (1 << 5);
else
input[32] |= (1 << 6);
/* duplicate it */
memcpy(&input[33], &input[0], 32);
return g_compute_checksum_for_data(G_CHECKSUM_MD5, input, sizeof(input));
}
static void
add_connections_for_aps(NmtConnectDevice *nmtdev, const GPtrArray *connections)
{
NmtConnectConnection *nmtconn;
NMConnection * conn;
NMAccessPoint * ap;
const GPtrArray * aps;
GHashTable * seen_ssids;
GBytes * ssid;
char * ap_hash;
int i, c;
aps = nm_device_wifi_get_access_points(NM_DEVICE_WIFI(nmtdev->device));
if (!aps->len)
return;
seen_ssids = g_hash_table_new_full(nm_str_hash, g_str_equal, g_free, NULL);
for (i = 0; i < aps->len; i++) {
ap = aps->pdata[i];
if (!nm_access_point_get_ssid(ap))
continue;
ap_hash = hash_ap(ap);
if (g_hash_table_contains(seen_ssids, ap_hash)) {
g_free(ap_hash);
continue;
}
g_hash_table_add(seen_ssids, ap_hash);
nmtconn = g_slice_new0(NmtConnectConnection);
nmtconn->device = nmtdev->device;
nmtconn->ap = g_object_ref(ap);
ssid = nm_access_point_get_ssid(ap);
if (ssid)
nmtconn->ssid =
nm_utils_ssid_to_utf8(g_bytes_get_data(ssid, NULL), g_bytes_get_size(ssid));
for (c = 0; c < connections->len; c++) {
conn = connections->pdata[c];
if (nm_device_connection_valid(nmtdev->device, conn)
&& nm_access_point_connection_valid(ap, conn)) {
nmtconn->name = nm_connection_get_id(conn);
nmtconn->conn = g_object_ref(conn);
break;
}
}
if (!nmtconn->name)
nmtconn->name = nmtconn->ssid ?: "<unknown>";
nmtdev->conns = g_slist_prepend(nmtdev->conns, nmtconn);
}
g_hash_table_unref(seen_ssids);
}
static GSList *
append_nmt_devices_for_devices(GSList * nmt_devices,
const GPtrArray *devices,
char ** names,
const GPtrArray *connections)
{
NmtConnectDevice *nmtdev;
NMDevice * device;
int i, sort_order;
for (i = 0; i < devices->len; i++) {
device = devices->pdata[i];
sort_order = get_sort_order_for_device(device);
if (sort_order == -1)
continue;
nmtdev = g_slice_new0(NmtConnectDevice);
nmtdev->name = g_strdup(names[i]);
nmtdev->device = g_object_ref(device);
nmtdev->sort_order = sort_order;
if (NM_IS_DEVICE_WIFI(device))
add_connections_for_aps(nmtdev, connections);
else
add_connections_for_device(nmtdev, connections);
nmtdev->conns = g_slist_sort(nmtdev->conns, sort_connections);
nmt_devices = g_slist_prepend(nmt_devices, nmtdev);
}
return nmt_devices;
}
static GSList *
append_nmt_devices_for_virtual_devices(GSList *nmt_devices, const GPtrArray *connections)
{
NmtConnectDevice * nmtdev = NULL;
int i;
GHashTable * devices_by_name;
char * name;
NMConnection * conn;
NmtConnectConnection *nmtconn;
int sort_order;
devices_by_name = g_hash_table_new(nm_str_hash, g_str_equal);
for (i = 0; i < connections->len; i++) {
conn = connections->pdata[i];
sort_order = get_sort_order_for_connection(conn);
if (sort_order == -1)
continue;
name = nm_connection_get_virtual_device_description(conn);
if (name)
nmtdev = g_hash_table_lookup(devices_by_name, name);
if (nmtdev)
g_free(name);
else {
nmtdev = g_slice_new0(NmtConnectDevice);
nmtdev->name = name ?: g_strdup("Unknown");
nmtdev->sort_order = sort_order;
g_hash_table_insert(devices_by_name, nmtdev->name, nmtdev);
nmt_devices = g_slist_prepend(nmt_devices, nmtdev);
}
nmtconn = g_slice_new0(NmtConnectConnection);
nmtconn->name = nm_connection_get_id(conn);
nmtconn->conn = g_object_ref(conn);
nmtdev->conns = g_slist_insert_sorted(nmtdev->conns, nmtconn, sort_connections);
}
g_hash_table_destroy(devices_by_name);
return nmt_devices;
}
static GSList *
append_nmt_devices_for_vpns(GSList *nmt_devices, const GPtrArray *connections)
{
NmtConnectDevice * nmtdev;
int i;
NMConnection * conn;
NmtConnectConnection *nmtconn;
nmtdev = g_slice_new0(NmtConnectDevice);
nmtdev->name = g_strdup(_("VPN"));
nmtdev->sort_order = 100;
for (i = 0; i < connections->len; i++) {
conn = connections->pdata[i];
if (!nm_connection_is_type(conn, NM_SETTING_VPN_SETTING_NAME))
continue;
nmtconn = g_slice_new0(NmtConnectConnection);
nmtconn->name = nm_connection_get_id(conn);
nmtconn->conn = g_object_ref(conn);
nmtdev->conns = g_slist_insert_sorted(nmtdev->conns, nmtconn, sort_connections);
}
if (nmtdev->conns)
nmt_devices = g_slist_prepend(nmt_devices, nmtdev);
else
nmt_connect_device_free(nmtdev);
return nmt_devices;
}
static int
sort_nmt_devices(gconstpointer a, gconstpointer b)
{
NmtConnectDevice *nmta = (NmtConnectDevice *) a;
NmtConnectDevice *nmtb = (NmtConnectDevice *) b;
if (nmta->sort_order != nmtb->sort_order)
return nmta->sort_order - nmtb->sort_order;
return strcmp(nmta->name, nmtb->name);
}
static NMActiveConnection *
connection_find_ac(NMConnection *conn, const GPtrArray *acs)
{
NMActiveConnection *ac;
NMRemoteConnection *ac_conn;
int i;
for (i = 0; i < acs->len; i++) {
ac = acs->pdata[i];
ac_conn = nm_active_connection_get_connection(ac);
if (conn == NM_CONNECTION(ac_conn))
return ac;
}
return NULL;
}
static void
nmt_connect_connection_list_rebuild(NmtConnectConnectionList *list)
{
NmtConnectConnectionListPrivate *priv = NMT_CONNECT_CONNECTION_LIST_GET_PRIVATE(list);
NmtNewtListbox * listbox = NMT_NEWT_LISTBOX(list);
const GPtrArray * devices, *acs, *connections;
int max_width;
char ** names, *row, active_col;
const char * strength_col;
GSList * nmt_devices, *diter, *citer;
NmtConnectDevice * nmtdev;
NmtConnectConnection * nmtconn;
g_slist_free_full(priv->nmt_devices, (GDestroyNotify) nmt_connect_device_free);
priv->nmt_devices = NULL;
nmt_newt_listbox_clear(listbox);
devices = nm_client_get_devices(nm_client);
acs = nm_client_get_active_connections(nm_client);
connections = nm_client_get_connections(nm_client);
nmt_devices = NULL;
names = nm_device_disambiguate_names((NMDevice **) devices->pdata, devices->len);
nmt_devices = append_nmt_devices_for_devices(nmt_devices, devices, names, connections);
g_strfreev(names);
nmt_devices = append_nmt_devices_for_virtual_devices(nmt_devices, connections);
nmt_devices = append_nmt_devices_for_vpns(nmt_devices, connections);
nmt_devices = g_slist_sort(nmt_devices, sort_nmt_devices);
max_width = 0;
for (diter = nmt_devices; diter; diter = diter->next) {
nmtdev = diter->data;
for (citer = nmtdev->conns; citer; citer = citer->next) {
nmtconn = citer->data;
max_width = MAX(max_width, nmt_newt_text_width(nmtconn->name));
}
}
for (diter = nmt_devices; diter; diter = diter->next) {
nmtdev = diter->data;
if (nmtdev->conns) {
if (diter != nmt_devices)
nmt_newt_listbox_append(listbox, "", NULL);
nmt_newt_listbox_append(listbox, nmtdev->name, NULL);
}
for (citer = nmtdev->conns; citer; citer = citer->next) {
nmtconn = citer->data;
if (nmtconn->conn)
nmtconn->active = connection_find_ac(nmtconn->conn, acs);
if (nmtconn->active) {
g_object_ref(nmtconn->active);
active_col = '*';
} else
active_col = ' ';
if (nmtconn->ap) {
guint8 strength = nm_access_point_get_strength(nmtconn->ap);
strength_col = nmc_wifi_strength_bars(strength);
} else
strength_col = NULL;
row = g_strdup_printf("%c %s%-*s%s%s",
active_col,
nmtconn->name,
(int) (max_width - nmt_newt_text_width(nmtconn->name)),
"",
strength_col ? " " : "",
strength_col ?: "");
nmt_newt_listbox_append(listbox, row, nmtconn);
g_free(row);
}
}
priv->nmt_devices = nmt_devices;
g_object_notify(G_OBJECT(listbox), "active");
g_object_notify(G_OBJECT(listbox), "active-key");
}
static void
rebuild_on_property_changed(GObject *object, GParamSpec *spec, gpointer list)
{
nmt_connect_connection_list_rebuild(list);
}
static void
nmt_connect_connection_list_constructed(GObject *object)
{
NmtConnectConnectionList *list = NMT_CONNECT_CONNECTION_LIST(object);
g_signal_connect(nm_client,
"notify::" NM_CLIENT_ACTIVE_CONNECTIONS,
G_CALLBACK(rebuild_on_property_changed),
list);
g_signal_connect(nm_client,
"notify::" NM_CLIENT_CONNECTIONS,
G_CALLBACK(rebuild_on_property_changed),
list);
g_signal_connect(nm_client,
"notify::" NM_CLIENT_DEVICES,
G_CALLBACK(rebuild_on_property_changed),
list);
nmt_connect_connection_list_rebuild(list);
G_OBJECT_CLASS(nmt_connect_connection_list_parent_class)->constructed(object);
}
static void
nmt_connect_connection_list_finalize(GObject *object)
{
NmtConnectConnectionListPrivate *priv = NMT_CONNECT_CONNECTION_LIST_GET_PRIVATE(object);
g_slist_free_full(priv->nmt_devices, (GDestroyNotify) nmt_connect_device_free);
g_signal_handlers_disconnect_by_func(nm_client,
G_CALLBACK(rebuild_on_property_changed),
object);
G_OBJECT_CLASS(nmt_connect_connection_list_parent_class)->finalize(object);
}
static void
nmt_connect_connection_list_class_init(NmtConnectConnectionListClass *list_class)
{
GObjectClass *object_class = G_OBJECT_CLASS(list_class);
g_type_class_add_private(list_class, sizeof(NmtConnectConnectionListPrivate));
/* virtual methods */
object_class->constructed = nmt_connect_connection_list_constructed;
object_class->finalize = nmt_connect_connection_list_finalize;
}
/**
* nmt_connect_connection_list_get_connection:
* @list: an #NmtConnectConnectionList
* @identifier: a connection ID or UUID, or device name
* @connection: (out) (transfer none): the #NMConnection to be activated
* @device: (out) (transfer none): the #NMDevice to activate @connection on
* @specific_object: (out) (transfer none): the "specific object" to connect to
* @active: (out) (transfer none): the #NMActiveConnection corresponding
* to the selection, if any.
*
* Gets information about the indicated connection.
*
* Returns: %TRUE if there was a match, %FALSE if not.
*/
gboolean
nmt_connect_connection_list_get_connection(NmtConnectConnectionList *list,
const char * identifier,
NMConnection ** connection,
NMDevice ** device,
NMObject ** specific_object,
NMActiveConnection ** active)
{
NmtConnectConnectionListPrivate *priv = NMT_CONNECT_CONNECTION_LIST_GET_PRIVATE(list);
GSList * diter, *citer;
NmtConnectDevice * nmtdev;
NmtConnectConnection * nmtconn = NULL;
NMConnection * conn = NULL;
g_return_val_if_fail(identifier, FALSE);
if (nm_utils_is_uuid(identifier))
conn = NM_CONNECTION(nm_client_get_connection_by_uuid(nm_client, identifier));
if (!conn)
conn = NM_CONNECTION(nm_client_get_connection_by_id(nm_client, identifier));
for (diter = priv->nmt_devices; diter; diter = diter->next) {
nmtdev = diter->data;
if (!nmtdev->conns)
continue;
for (citer = nmtdev->conns; citer; citer = citer->next) {
nmtconn = citer->data;
if (conn) {
if (conn == nmtconn->conn)
goto found;
} else if (nm_streq0(identifier, nmtconn->ssid))
goto found;
}
if (!conn && nmtdev->device
&& nm_streq0(identifier, nm_device_get_ip_iface(nmtdev->device))) {
nmtconn = nmtdev->conns->data;
goto found;
}
}
return FALSE;
found:
if (connection)
*connection = nmtconn->conn;
if (device)
*device = nmtconn->device;
if (specific_object)
*specific_object = NM_OBJECT(nmtconn->ap);
if (active)
*active = nmtconn->active;
return TRUE;
}
/**
* nmt_connect_connection_list_get_selection:
* @list: an #NmtConnectConnectionList
* @connection: (out) (transfer none): the #NMConnection to be activated
* @device: (out) (transfer none): the #NMDevice to activate @connection on
* @specific_object: (out) (transfer none): the "specific object" to connect to
* @active: (out) (transfer none): the #NMActiveConnection corresponding
* to the selection, if any.
*
* Gets information about the selected row.
*
* Returns: %TRUE if there is a selection, %FALSE if not.
*/
gboolean
nmt_connect_connection_list_get_selection(NmtConnectConnectionList *list,
NMConnection ** connection,
NMDevice ** device,
NMObject ** specific_object,
NMActiveConnection ** active)
{
NmtConnectConnection *nmtconn;
nmtconn = nmt_newt_listbox_get_active_key(NMT_NEWT_LISTBOX(list));
if (!nmtconn)
return FALSE;
if (connection)
*connection = nmtconn->conn;
if (device)
*device = nmtconn->device;
if (specific_object)
*specific_object = NM_OBJECT(nmtconn->ap);
if (active)
*active = nmtconn->active;
return TRUE;
}