New upstream version 1.29.90 upstream/1.29.90

7 files changed, 2153 insertions, 0 deletions

diff --git a/src/core/platform/wifi/nm-wifi-utils-nl80211.c b/src/core/platform/wifi/nm-wifi-utils-nl80211.c
new file mode 100644
index 00000000..ad067248
--- /dev/null
+++ b/src/core/platform/wifi/nm-wifi-utils-nl80211.c
@@ -0,0 +1,909 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2005 - 2018 Red Hat, Inc.
+ * Copyright (C) 2006 - 2008 Novell, Inc.
+ * Copyright (C) 2011 Intel Corporation. All rights reserved.
+ */
+
+#include "src/core/nm-default-daemon.h"
+
+#include "nm-wifi-utils-nl80211.h"
+
+#include <sys/ioctl.h>
+#include <net/ethernet.h>
+#include <unistd.h>
+#include <linux/nl80211.h>
+#include <linux/if.h>
+
+#include "nm-platform/nm-netlink.h"
+#include "nm-wifi-utils-private.h"
+#include "platform/nm-platform.h"
+#include "nm-platform/nm-platform-utils.h"
+#include "nm-utils.h"
+
+#define _NMLOG_PREFIX_NAME "wifi-nl80211"
+#define _NMLOG_DOMAIN      LOGD_PLATFORM | LOGD_WIFI
+#define _NMLOG(level, ...)                                                             \
+    G_STMT_START                                                                       \
+    {                                                                                  \
+        char        _ifname_buf[IFNAMSIZ];                                             \
+        const char *_ifname =                                                          \
+            self ? nmp_utils_if_indextoname(self->parent.ifindex, _ifname_buf) : NULL; \
+                                                                                       \
+        nm_log((level),                                                                \
+               _NMLOG_DOMAIN,                                                          \
+               _ifname ?: NULL,                                                        \
+               NULL,                                                                   \
+               "%s%s%s%s: " _NM_UTILS_MACRO_FIRST(__VA_ARGS__),                        \
+               _NMLOG_PREFIX_NAME,                                                     \
+               NM_PRINT_FMT_QUOTED(_ifname, " (", _ifname, ")", "")                    \
+                   _NM_UTILS_MACRO_REST(__VA_ARGS__));                                 \
+    }                                                                                  \
+    G_STMT_END
+
+typedef struct {
+    NMWifiUtils     parent;
+    struct nl_sock *nl_sock;
+    guint32 *       freqs;
+    int             id;
+    int             num_freqs;
+    int             phy;
+    bool            can_wowlan : 1;
+} NMWifiUtilsNl80211;
+
+typedef struct {
+    NMWifiUtilsClass parent;
+} NMWifiUtilsNl80211Class;
+
+G_DEFINE_TYPE(NMWifiUtilsNl80211, nm_wifi_utils_nl80211, NM_TYPE_WIFI_UTILS)
+
+static int
+ack_handler(struct nl_msg *msg, void *arg)
+{
+    int *done = arg;
+    *done     = 1;
+    return NL_STOP;
+}
+
+static int
+finish_handler(struct nl_msg *msg, void *arg)
+{
+    int *done = arg;
+    *done     = 1;
+    return NL_SKIP;
+}
+
+static int
+error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, void *arg)
+{
+    int *done = arg;
+    *done     = err->error;
+    return NL_SKIP;
+}
+
+static struct nl_msg *
+_nl80211_alloc_msg(int id, int ifindex, int phy, guint32 cmd, guint32 flags)
+{
+    nm_auto_nlmsg struct nl_msg *msg = NULL;
+
+    msg = nlmsg_alloc();
+    genlmsg_put(msg, 0, 0, id, 0, flags, cmd, 0);
+    NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
+    if (phy != -1)
+        NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, phy);
+    return g_steal_pointer(&msg);
+
+nla_put_failure:
+    g_return_val_if_reached(NULL);
+}
+
+static struct nl_msg *
+nl80211_alloc_msg(NMWifiUtilsNl80211 *self, guint32 cmd, guint32 flags)
+{
+    return _nl80211_alloc_msg(self->id, self->parent.ifindex, self->phy, cmd, flags);
+}
+
+static int
+nl80211_send_and_recv(NMWifiUtilsNl80211 *self,
+                      struct nl_msg *     msg,
+                      int (*valid_handler)(struct nl_msg *, void *),
+                      void *valid_data)
+{
+    int                err;
+    int                done = 0;
+    const struct nl_cb cb   = {
+        .err_cb     = error_handler,
+        .err_arg    = &done,
+        .finish_cb  = finish_handler,
+        .finish_arg = &done,
+        .ack_cb     = ack_handler,
+        .ack_arg    = &done,
+        .valid_cb   = valid_handler,
+        .valid_arg  = valid_data,
+    };
+
+    g_return_val_if_fail(msg != NULL, -ENOMEM);
+
+    err = nl_send_auto(self->nl_sock, msg);
+    if (err < 0)
+        return err;
+
+    /* Loop until one of our NL callbacks says we're done; on success
+     * done will be 1, on error it will be < 0.
+     */
+    while (!done) {
+        err = nl_recvmsgs(self->nl_sock, &cb);
+        if (err < 0 && err != -EAGAIN) {
+            /* Kernel scan list can change while we are dumping it, as new scan
+             * results from H/W can arrive. BSS info is assured to be consistent
+             * and we don't need consistent view of whole scan list. Hence do
+             * not warn on DUMP_INTR error for get scan command.
+             */
+            if (err == -NME_NL_DUMP_INTR
+                && genlmsg_hdr(nlmsg_hdr(msg))->cmd == NL80211_CMD_GET_SCAN)
+                break;
+
+            _LOGW("nl_recvmsgs() error: (%d) %s", err, nm_strerror(err));
+            break;
+        }
+    }
+
+    if (err >= 0 && done < 0)
+        err = done;
+    return err;
+}
+
+static void
+dispose(GObject *object)
+{
+    NMWifiUtilsNl80211 *self = NM_WIFI_UTILS_NL80211(object);
+
+    nm_clear_g_free(&self->freqs);
+}
+
+struct nl80211_iface_info {
+    NM80211Mode mode;
+    uint32_t    freq;
+};
+
+static int
+nl80211_iface_info_handler(struct nl_msg *msg, void *arg)
+{
+    struct nl80211_iface_info *info = arg;
+    struct genlmsghdr *        gnlh = nlmsg_data(nlmsg_hdr(msg));
+    struct nlattr *            tb[NL80211_ATTR_MAX + 1];
+
+    if (nla_parse_arr(tb, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL) < 0)
+        return NL_SKIP;
+
+    if (!tb[NL80211_ATTR_IFTYPE])
+        return NL_SKIP;
+
+    switch (nla_get_u32(tb[NL80211_ATTR_IFTYPE])) {
+    case NL80211_IFTYPE_ADHOC:
+        info->mode = NM_802_11_MODE_ADHOC;
+        break;
+    case NL80211_IFTYPE_AP:
+        info->mode = NM_802_11_MODE_AP;
+        break;
+    case NL80211_IFTYPE_STATION:
+        info->mode = NM_802_11_MODE_INFRA;
+        break;
+    case NL80211_IFTYPE_MESH_POINT:
+        info->mode = NM_802_11_MODE_MESH;
+        break;
+    }
+
+    if (tb[NL80211_ATTR_WIPHY_FREQ] != NULL)
+        info->freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
+
+    return NL_SKIP;
+}
+
+static NM80211Mode
+wifi_nl80211_get_mode(NMWifiUtils *data)
+{
+    NMWifiUtilsNl80211 *      self       = (NMWifiUtilsNl80211 *) data;
+    struct nl80211_iface_info iface_info = {
+        .mode = NM_802_11_MODE_UNKNOWN,
+    };
+    nm_auto_nlmsg struct nl_msg *msg = NULL;
+
+    msg = nl80211_alloc_msg(self, NL80211_CMD_GET_INTERFACE, 0);
+
+    if (nl80211_send_and_recv(self, msg, nl80211_iface_info_handler, &iface_info) < 0)
+        return NM_802_11_MODE_UNKNOWN;
+
+    return iface_info.mode;
+}
+
+static gboolean
+wifi_nl80211_set_mode(NMWifiUtils *data, const NM80211Mode mode)
+{
+    NMWifiUtilsNl80211 *         self = (NMWifiUtilsNl80211 *) data;
+    nm_auto_nlmsg struct nl_msg *msg  = NULL;
+    int                          err;
+
+    msg = nl80211_alloc_msg(self, NL80211_CMD_SET_INTERFACE, 0);
+
+    switch (mode) {
+    case NM_802_11_MODE_INFRA:
+        NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_STATION);
+        break;
+    case NM_802_11_MODE_ADHOC:
+        NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_ADHOC);
+        break;
+    case NM_802_11_MODE_AP:
+        NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_AP);
+        break;
+    case NM_802_11_MODE_MESH:
+        NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_MESH_POINT);
+        break;
+    default:
+        g_assert_not_reached();
+    }
+
+    err = nl80211_send_and_recv(self, msg, NULL, NULL);
+    return err >= 0;
+
+nla_put_failure:
+    g_return_val_if_reached(FALSE);
+}
+
+static gboolean
+wifi_nl80211_set_powersave(NMWifiUtils *data, guint32 powersave)
+{
+    NMWifiUtilsNl80211 *         self = (NMWifiUtilsNl80211 *) data;
+    nm_auto_nlmsg struct nl_msg *msg  = NULL;
+    int                          err;
+
+    msg = nl80211_alloc_msg(self, NL80211_CMD_SET_POWER_SAVE, 0);
+    NLA_PUT_U32(msg,
+                NL80211_ATTR_PS_STATE,
+                powersave == 1 ? NL80211_PS_ENABLED : NL80211_PS_DISABLED);
+    err = nl80211_send_and_recv(self, msg, NULL, NULL);
+    return err >= 0;
+
+nla_put_failure:
+    g_return_val_if_reached(FALSE);
+}
+
+static int
+nl80211_get_wake_on_wlan_handler(struct nl_msg *msg, void *arg)
+{
+    NMSettingWirelessWakeOnWLan *wowl = arg;
+    struct nlattr *              attrs[NL80211_ATTR_MAX + 1];
+    struct nlattr *              trig[NUM_NL80211_WOWLAN_TRIG];
+    struct genlmsghdr *          gnlh = nlmsg_data(nlmsg_hdr(msg));
+
+    nla_parse_arr(attrs, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL);
+
+    if (!attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
+        return NL_SKIP;
+
+    nla_parse_arr(trig,
+                  nla_data(attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
+                  nla_len(attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
+                  NULL);
+
+    *wowl = NM_SETTING_WIRELESS_WAKE_ON_WLAN_NONE;
+    if (trig[NL80211_WOWLAN_TRIG_ANY])
+        *wowl |= NM_SETTING_WIRELESS_WAKE_ON_WLAN_ANY;
+    if (trig[NL80211_WOWLAN_TRIG_DISCONNECT])
+        *wowl |= NM_SETTING_WIRELESS_WAKE_ON_WLAN_DISCONNECT;
+    if (trig[NL80211_WOWLAN_TRIG_MAGIC_PKT])
+        *wowl |= NM_SETTING_WIRELESS_WAKE_ON_WLAN_MAGIC;
+    if (trig[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE])
+        *wowl |= NM_SETTING_WIRELESS_WAKE_ON_WLAN_GTK_REKEY_FAILURE;
+    if (trig[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST])
+        *wowl |= NM_SETTING_WIRELESS_WAKE_ON_WLAN_EAP_IDENTITY_REQUEST;
+    if (trig[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE])
+        *wowl |= NM_SETTING_WIRELESS_WAKE_ON_WLAN_4WAY_HANDSHAKE;
+    if (trig[NL80211_WOWLAN_TRIG_RFKILL_RELEASE])
+        *wowl |= NM_SETTING_WIRELESS_WAKE_ON_WLAN_RFKILL_RELEASE;
+    if (trig[NL80211_WOWLAN_TRIG_TCP_CONNECTION])
+        *wowl |= NM_SETTING_WIRELESS_WAKE_ON_WLAN_TCP;
+
+    return NL_SKIP;
+}
+
+static NMSettingWirelessWakeOnWLan
+wifi_nl80211_get_wake_on_wlan(NMWifiUtils *data)
+{
+    NMWifiUtilsNl80211 *         self = (NMWifiUtilsNl80211 *) data;
+    NMSettingWirelessWakeOnWLan  wowl = NM_SETTING_WIRELESS_WAKE_ON_WLAN_IGNORE;
+    nm_auto_nlmsg struct nl_msg *msg  = NULL;
+
+    msg = nl80211_alloc_msg(self, NL80211_CMD_GET_WOWLAN, 0);
+
+    nl80211_send_and_recv(self, msg, nl80211_get_wake_on_wlan_handler, &wowl);
+
+    return wowl;
+}
+
+static gboolean
+wifi_nl80211_set_wake_on_wlan(NMWifiUtils *data, NMSettingWirelessWakeOnWLan wowl)
+{
+    NMWifiUtilsNl80211 *         self = (NMWifiUtilsNl80211 *) data;
+    nm_auto_nlmsg struct nl_msg *msg  = NULL;
+    struct nlattr *              triggers;
+    int                          err;
+
+    if (wowl == NM_SETTING_WIRELESS_WAKE_ON_WLAN_IGNORE)
+        return TRUE;
+
+    msg = nl80211_alloc_msg(self, NL80211_CMD_SET_WOWLAN, 0);
+
+    triggers = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
+    if (!triggers)
+        goto nla_put_failure;
+
+    if (NM_FLAGS_HAS(wowl, NM_SETTING_WIRELESS_WAKE_ON_WLAN_ANY))
+        NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
+    if (NM_FLAGS_HAS(wowl, NM_SETTING_WIRELESS_WAKE_ON_WLAN_DISCONNECT))
+        NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
+    if (NM_FLAGS_HAS(wowl, NM_SETTING_WIRELESS_WAKE_ON_WLAN_MAGIC))
+        NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
+    if (NM_FLAGS_HAS(wowl, NM_SETTING_WIRELESS_WAKE_ON_WLAN_GTK_REKEY_FAILURE))
+        NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
+    if (NM_FLAGS_HAS(wowl, NM_SETTING_WIRELESS_WAKE_ON_WLAN_EAP_IDENTITY_REQUEST))
+        NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
+    if (NM_FLAGS_HAS(wowl, NM_SETTING_WIRELESS_WAKE_ON_WLAN_4WAY_HANDSHAKE))
+        NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
+    if (NM_FLAGS_HAS(wowl, NM_SETTING_WIRELESS_WAKE_ON_WLAN_RFKILL_RELEASE))
+        NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
+
+    nla_nest_end(msg, triggers);
+
+    err = nl80211_send_and_recv(self, msg, NULL, NULL);
+
+    return err >= 0;
+
+nla_put_failure:
+    g_return_val_if_reached(FALSE);
+}
+
+static guint32
+wifi_nl80211_get_freq(NMWifiUtils *data)
+{
+    NMWifiUtilsNl80211 *         self       = (NMWifiUtilsNl80211 *) data;
+    struct nl80211_iface_info    iface_info = {};
+    nm_auto_nlmsg struct nl_msg *msg        = NULL;
+
+    msg = nl80211_alloc_msg(self, NL80211_CMD_GET_INTERFACE, 0);
+
+    if (nl80211_send_and_recv(self, msg, nl80211_iface_info_handler, &iface_info) < 0)
+        return 0;
+
+    return iface_info.freq;
+}
+
+static guint32
+wifi_nl80211_find_freq(NMWifiUtils *data, const guint32 *freqs)
+{
+    NMWifiUtilsNl80211 *self = (NMWifiUtilsNl80211 *) data;
+    int                 i;
+
+    for (i = 0; i < self->num_freqs; i++) {
+        while (*freqs) {
+            if (self->freqs[i] == *freqs)
+                return *freqs;
+            freqs++;
+        }
+    }
+    return 0;
+}
+
+/* @divisor: pass what value @xbm should be divided by to get dBm */
+static guint32
+nl80211_xbm_to_percent(gint32 xbm, guint32 divisor)
+{
+#define NOISE_FLOOR_DBM -90
+#define SIGNAL_MAX_DBM  -20
+
+    xbm /= divisor;
+    xbm = CLAMP(xbm, NOISE_FLOOR_DBM, SIGNAL_MAX_DBM);
+
+    return 100
+           - 70
+                 * (((float) SIGNAL_MAX_DBM - (float) xbm)
+                    / ((float) SIGNAL_MAX_DBM - (float) NOISE_FLOOR_DBM));
+}
+
+struct nl80211_station_info {
+    gboolean valid;
+    guint8   bssid[ETH_ALEN];
+    guint32  txrate;
+    gboolean txrate_valid;
+    guint8   signal;
+    gboolean signal_valid;
+};
+
+static int
+nl80211_station_dump_handler(struct nl_msg *msg, void *arg)
+{
+    static const struct nla_policy stats_policy[] = {
+        [NL80211_STA_INFO_INACTIVE_TIME]     = {.type = NLA_U32},
+        [NL80211_STA_INFO_RX_BYTES]          = {.type = NLA_U32},
+        [NL80211_STA_INFO_TX_BYTES]          = {.type = NLA_U32},
+        [NL80211_STA_INFO_RX_PACKETS]        = {.type = NLA_U32},
+        [NL80211_STA_INFO_TX_PACKETS]        = {.type = NLA_U32},
+        [NL80211_STA_INFO_SIGNAL]            = {.type = NLA_U8},
+        [NL80211_STA_INFO_TX_BITRATE]        = {.type = NLA_NESTED},
+        [NL80211_STA_INFO_LLID]              = {.type = NLA_U16},
+        [NL80211_STA_INFO_PLID]              = {.type = NLA_U16},
+        [NL80211_STA_INFO_PLINK_STATE]       = {.type = NLA_U8},
+        [NL80211_STA_INFO_STA_FLAGS]         = {.minlen = sizeof(struct nl80211_sta_flag_update)},
+        [NL80211_STA_INFO_BEACON_SIGNAL_AVG] = {.type = NLA_U8},
+    };
+    static const struct nla_policy rate_policy[] = {
+        [NL80211_RATE_INFO_BITRATE]      = {.type = NLA_U16},
+        [NL80211_RATE_INFO_MCS]          = {.type = NLA_U8},
+        [NL80211_RATE_INFO_40_MHZ_WIDTH] = {.type = NLA_FLAG},
+        [NL80211_RATE_INFO_SHORT_GI]     = {.type = NLA_FLAG},
+    };
+    struct nlattr *              rinfo[G_N_ELEMENTS(rate_policy)];
+    struct nlattr *              sinfo[G_N_ELEMENTS(stats_policy)];
+    struct nl80211_station_info *info = arg;
+    struct nlattr *              tb[NL80211_ATTR_MAX + 1];
+    struct genlmsghdr *          gnlh = nlmsg_data(nlmsg_hdr(msg));
+
+    if (nla_parse_arr(tb, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL) < 0)
+        return NL_SKIP;
+
+    if (tb[NL80211_ATTR_MAC] == NULL)
+        return NL_SKIP;
+
+    if (tb[NL80211_ATTR_STA_INFO] == NULL)
+        return NL_SKIP;
+
+    if (nla_parse_nested_arr(sinfo, tb[NL80211_ATTR_STA_INFO], stats_policy))
+        return NL_SKIP;
+
+    if (sinfo[NL80211_STA_INFO_STA_FLAGS] != NULL) {
+        const struct nl80211_sta_flag_update *flags = nla_data(sinfo[NL80211_STA_INFO_STA_FLAGS]);
+
+        if (flags->mask & ~flags->set & (1 << NL80211_STA_FLAG_ASSOCIATED))
+            return NL_SKIP;
+    }
+
+    memcpy(info->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
+    info->valid = TRUE;
+
+    if (sinfo[NL80211_STA_INFO_TX_BITRATE] != NULL
+        && !nla_parse_nested_arr(rinfo, sinfo[NL80211_STA_INFO_TX_BITRATE], rate_policy)
+        && rinfo[NL80211_RATE_INFO_BITRATE] != NULL) {
+        /* convert from nl80211's units of 100kbps to NM's kbps */
+        info->txrate       = nla_get_u16(rinfo[NL80211_RATE_INFO_BITRATE]) * 100;
+        info->txrate_valid = TRUE;
+    }
+
+    if (sinfo[NL80211_STA_INFO_SIGNAL] != NULL) {
+        info->signal =
+            nl80211_xbm_to_percent((gint8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]), 1);
+        info->signal_valid = TRUE;
+    } else if (sinfo[NL80211_STA_INFO_BEACON_SIGNAL_AVG] != NULL) {
+        /* Fall back to beacon signal strength */
+        info->signal =
+            nl80211_xbm_to_percent((gint8) nla_get_u8(sinfo[NL80211_STA_INFO_BEACON_SIGNAL_AVG]),
+                                   1);
+        info->signal_valid = TRUE;
+    }
+
+    return NL_SKIP;
+}
+
+static gboolean
+wifi_nl80211_get_station(NMWifiUtils *data,
+                         NMEtherAddr *out_bssid,
+                         int *        out_quality,
+                         guint32 *    out_rate)
+{
+    NMWifiUtilsNl80211 *         self     = (NMWifiUtilsNl80211 *) data;
+    nm_auto_nlmsg struct nl_msg *msg      = NULL;
+    struct nl80211_station_info  sta_info = {};
+
+    msg = nl80211_alloc_msg(self, NL80211_CMD_GET_STATION, NLM_F_DUMP);
+
+    nl80211_send_and_recv(self, msg, nl80211_station_dump_handler, &sta_info);
+
+    if (!sta_info.valid || (out_quality && !sta_info.signal_valid)
+        || (out_rate && !sta_info.txrate_valid))
+        return FALSE;
+
+    if (out_bssid)
+        memcpy(out_bssid, sta_info.bssid, ETH_ALEN);
+
+    if (out_quality)
+        *out_quality = sta_info.signal;
+
+    if (out_rate)
+        *out_rate = sta_info.txrate;
+
+    return TRUE;
+}
+
+static gboolean
+wifi_nl80211_indicate_addressing_running(NMWifiUtils *data, gboolean running)
+{
+    NMWifiUtilsNl80211 *         self = (NMWifiUtilsNl80211 *) data;
+    nm_auto_nlmsg struct nl_msg *msg  = NULL;
+    int                          err;
+
+    msg = nl80211_alloc_msg(self,
+                            running ? 98 /* NL80211_CMD_CRIT_PROTOCOL_START */
+                                    : 99 /* NL80211_CMD_CRIT_PROTOCOL_STOP */,
+                            0);
+    /* Despite the DHCP name, we're using this for any type of IP addressing,
+     * DHCPv4, DHCPv6, and IPv6 SLAAC.
+     */
+    NLA_PUT_U16(msg, 179 /* NL80211_ATTR_CRIT_PROT_ID */, 1 /* NL80211_CRIT_PROTO_DHCP */);
+    if (running) {
+        /* Give DHCP 5 seconds to complete */
+        NLA_PUT_U16(msg, 180 /* NL80211_ATTR_MAX_CRIT_PROT_DURATION */, 5000);
+    }
+
+    err = nl80211_send_and_recv(self, msg, NULL, NULL);
+    return err >= 0;
+
+nla_put_failure:
+    g_return_val_if_reached(FALSE);
+}
+
+struct nl80211_device_info {
+    NMWifiUtilsNl80211 *self;
+    int                 phy;
+    guint32 *           freqs;
+    int                 num_freqs;
+    guint32             freq;
+    guint32             caps;
+    gboolean            can_scan;
+    gboolean            can_scan_ssid;
+    gboolean            supported;
+    gboolean            success;
+    gboolean            can_wowlan;
+};
+
+#define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
+#define WLAN_CIPHER_SUITE_WEP40     0x000FAC01
+#define WLAN_CIPHER_SUITE_TKIP      0x000FAC02
+#define WLAN_CIPHER_SUITE_CCMP      0x000FAC04
+#define WLAN_CIPHER_SUITE_WEP104    0x000FAC05
+#define WLAN_CIPHER_SUITE_AES_CMAC  0x000FAC06
+#define WLAN_CIPHER_SUITE_GCMP      0x000FAC08
+#define WLAN_CIPHER_SUITE_SMS4      0x00147201
+
+static int
+nl80211_wiphy_info_handler(struct nl_msg *msg, void *arg)
+{
+    static const struct nla_policy freq_policy[] = {
+        [NL80211_FREQUENCY_ATTR_FREQ]     = {.type = NLA_U32},
+        [NL80211_FREQUENCY_ATTR_DISABLED] = {.type = NLA_FLAG},
+#ifdef NL80211_FREQUENCY_ATTR_NO_IR
+        [NL80211_FREQUENCY_ATTR_NO_IR] = {.type = NLA_FLAG},
+#else
+        [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = {.type = NLA_FLAG},
+        [NL80211_FREQUENCY_ATTR_NO_IBSS]      = {.type = NLA_FLAG},
+#endif
+        [NL80211_FREQUENCY_ATTR_RADAR]        = {.type = NLA_FLAG},
+        [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = {.type = NLA_U32},
+    };
+    struct nlattr *             tb[NL80211_ATTR_MAX + 1];
+    struct genlmsghdr *         gnlh = nlmsg_data(nlmsg_hdr(msg));
+    struct nl80211_device_info *info = arg;
+    NMWifiUtilsNl80211 *        self = info->self;
+    struct nlattr *             tb_band[NL80211_BAND_ATTR_MAX + 1];
+    struct nlattr *             tb_freq[G_N_ELEMENTS(freq_policy)];
+    struct nlattr *             nl_band;
+    struct nlattr *             nl_freq;
+    int                         rem_freq;
+    int                         rem_band;
+    int                         freq_idx;
+
+#ifdef NL80211_FREQUENCY_ATTR_NO_IR
+    G_STATIC_ASSERT_EXPR(NL80211_FREQUENCY_ATTR_PASSIVE_SCAN == NL80211_FREQUENCY_ATTR_NO_IR
+                         && NL80211_FREQUENCY_ATTR_NO_IBSS == NL80211_FREQUENCY_ATTR_NO_IR);
+#else
+    G_STATIC_ASSERT_EXPR(NL80211_FREQUENCY_ATTR_PASSIVE_SCAN != NL80211_FREQUENCY_ATTR_NO_IBSS);
+#endif
+
+    if (nla_parse_arr(tb, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL) < 0)
+        return NL_SKIP;
+
+    if (tb[NL80211_ATTR_WIPHY] == NULL || tb[NL80211_ATTR_WIPHY_BANDS] == NULL)
+        return NL_SKIP;
+
+    info->phy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
+
+    if (tb[NL80211_ATTR_WIPHY_FREQ])
+        info->freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
+    else
+        info->freq = 0;
+
+    if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) {
+        info->can_scan_ssid = nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]) > 0;
+    } else {
+        /* old kernel that only had mac80211, so assume it can */
+        info->can_scan_ssid = TRUE;
+    }
+
+    if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
+        struct nlattr *nl_cmd;
+        int            i;
+
+        nla_for_each_nested (nl_cmd, tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
+            switch (nla_get_u32(nl_cmd)) {
+            case NL80211_CMD_TRIGGER_SCAN:
+                info->can_scan = TRUE;
+                break;
+            case NL80211_CMD_CONNECT:
+            case NL80211_CMD_AUTHENTICATE:
+                /* Only devices that support CONNECT or AUTH actually support
+                 * 802.11, unlike say ipw2x00 (up to at least kernel 3.4) which
+                 * has minimal info support, but no actual command support.
+                 * This check mirrors what wpa_supplicant does to determine
+                 * whether or not to use the nl80211 driver.
+                 */
+                info->supported = TRUE;
+                break;
+            default:
+                break;
+            }
+        }
+    }
+
+    /* Find number of supported frequencies */
+    info->num_freqs = 0;
+
+    nla_for_each_nested (nl_band, tb[NL80211_ATTR_WIPHY_BANDS], rem_band) {
+        if (nla_parse_nested_arr(tb_band, nl_band, NULL) < 0)
+            return NL_SKIP;
+
+        nla_for_each_nested (nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
+            if (nla_parse_nested_arr(tb_freq, nl_freq, freq_policy) < 0)
+                continue;
+
+            if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
+                continue;
+
+            info->num_freqs++;
+        }
+    }
+
+    /* Read supported frequencies */
+    info->freqs = g_malloc0(sizeof(guint32) * info->num_freqs);
+
+    freq_idx = 0;
+    nla_for_each_nested (nl_band, tb[NL80211_ATTR_WIPHY_BANDS], rem_band) {
+        if (nla_parse_nested_arr(tb_band, nl_band, NULL) < 0)
+            return NL_SKIP;
+
+        nla_for_each_nested (nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
+            if (nla_parse_nested_arr(tb_freq, nl_freq, freq_policy) < 0)
+                continue;
+
+            if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
+                continue;
+
+            info->freqs[freq_idx] = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
+
+            info->caps |= NM_WIFI_DEVICE_CAP_FREQ_VALID;
+
+            if (info->freqs[freq_idx] > 2400 && info->freqs[freq_idx] < 2500)
+                info->caps |= NM_WIFI_DEVICE_CAP_FREQ_2GHZ;
+            if (info->freqs[freq_idx] > 4900 && info->freqs[freq_idx] < 6000)
+                info->caps |= NM_WIFI_DEVICE_CAP_FREQ_5GHZ;
+
+            freq_idx++;
+        }
+    }
+
+    /* Read security/encryption support */
+    if (tb[NL80211_ATTR_CIPHER_SUITES]) {
+        guint32 *ciphers = nla_data(tb[NL80211_ATTR_CIPHER_SUITES]);
+        guint    i, num;
+
+        num = nla_len(tb[NL80211_ATTR_CIPHER_SUITES]) / sizeof(guint32);
+        for (i = 0; i < num; i++) {
+            switch (ciphers[i]) {
+            case WLAN_CIPHER_SUITE_WEP40:
+                info->caps |= NM_WIFI_DEVICE_CAP_CIPHER_WEP40;
+                break;
+            case WLAN_CIPHER_SUITE_WEP104:
+                info->caps |= NM_WIFI_DEVICE_CAP_CIPHER_WEP104;
+                break;
+            case WLAN_CIPHER_SUITE_TKIP:
+                info->caps |= (NM_WIFI_DEVICE_CAP_CIPHER_TKIP | NM_WIFI_DEVICE_CAP_WPA);
+                break;
+            case WLAN_CIPHER_SUITE_CCMP:
+                info->caps |= (NM_WIFI_DEVICE_CAP_CIPHER_CCMP | NM_WIFI_DEVICE_CAP_RSN);
+                break;
+            case WLAN_CIPHER_SUITE_AES_CMAC:
+            case WLAN_CIPHER_SUITE_GCMP:
+            case WLAN_CIPHER_SUITE_SMS4:
+                break;
+            default:
+                _LOGD("don't know the meaning of NL80211_ATTR_CIPHER_SUITE %#8.8x.", ciphers[i]);
+                break;
+            }
+        }
+    }
+
+    if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
+        struct nlattr *nl_mode;
+        int            i;
+
+        nla_for_each_nested (nl_mode, tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
+            switch (nla_type(nl_mode)) {
+            case NL80211_IFTYPE_AP:
+                info->caps |= NM_WIFI_DEVICE_CAP_AP;
+                break;
+            case NL80211_IFTYPE_ADHOC:
+                info->caps |= NM_WIFI_DEVICE_CAP_ADHOC;
+                break;
+            case NL80211_IFTYPE_MESH_POINT:
+                info->caps |= NM_WIFI_DEVICE_CAP_MESH;
+                break;
+            }
+        }
+    }
+
+    if (tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED])
+        info->can_wowlan = TRUE;
+
+    if (tb[NL80211_ATTR_SUPPORT_IBSS_RSN])
+        info->caps |= NM_WIFI_DEVICE_CAP_IBSS_RSN;
+
+    info->success = TRUE;
+
+    return NL_SKIP;
+}
+
+static guint32
+wifi_nl80211_get_mesh_channel(NMWifiUtils *data)
+{
+    NMWifiUtilsNl80211 *         self        = (NMWifiUtilsNl80211 *) data;
+    nm_auto_nlmsg struct nl_msg *msg         = NULL;
+    struct nl80211_device_info   device_info = {.self = self};
+    int                          i;
+
+    msg = nl80211_alloc_msg(self, NL80211_CMD_GET_WIPHY, 0);
+
+    if (nl80211_send_and_recv(self, msg, nl80211_wiphy_info_handler, &device_info) < 0) {
+        _LOGW("NL80211_CMD_GET_WIPHY request failed");
+        return 0;
+    }
+
+    for (i = 0; i < self->num_freqs; i++) {
+        if (device_info.freq == self->freqs[i])
+            return i + 1;
+    }
+    return 0;
+}
+
+static gboolean
+wifi_nl80211_set_mesh_channel(NMWifiUtils *data, guint32 channel)
+{
+    NMWifiUtilsNl80211 *         self = (NMWifiUtilsNl80211 *) data;
+    nm_auto_nlmsg struct nl_msg *msg  = NULL;
+    int                          err;
+
+    if (channel > self->num_freqs)
+        return FALSE;
+
+    msg = nl80211_alloc_msg(self, NL80211_CMD_SET_WIPHY, 0);
+    NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, self->freqs[channel - 1]);
+    err = nl80211_send_and_recv(self, msg, NULL, NULL);
+    return err >= 0;
+
+nla_put_failure:
+    g_return_val_if_reached(FALSE);
+}
+
+static gboolean
+wifi_nl80211_set_mesh_ssid(NMWifiUtils *data, const guint8 *ssid, gsize len)
+{
+    NMWifiUtilsNl80211 *         self = (NMWifiUtilsNl80211 *) data;
+    nm_auto_nlmsg struct nl_msg *msg  = NULL;
+    int                          err;
+
+    msg = nl80211_alloc_msg(self, NL80211_CMD_SET_INTERFACE, 0);
+    NLA_PUT(msg, NL80211_ATTR_MESH_ID, len, ssid);
+    err = nl80211_send_and_recv(self, msg, NULL, NULL);
+    return err >= 0;
+
+nla_put_failure:
+    g_return_val_if_reached(FALSE);
+}
+
+static void
+nm_wifi_utils_nl80211_init(NMWifiUtilsNl80211 *self)
+{}
+
+static void
+nm_wifi_utils_nl80211_class_init(NMWifiUtilsNl80211Class *klass)
+{
+    GObjectClass *    object_class     = G_OBJECT_CLASS(klass);
+    NMWifiUtilsClass *wifi_utils_class = NM_WIFI_UTILS_CLASS(klass);
+
+    object_class->dispose = dispose;
+
+    wifi_utils_class->get_mode                    = wifi_nl80211_get_mode;
+    wifi_utils_class->set_mode                    = wifi_nl80211_set_mode;
+    wifi_utils_class->set_powersave               = wifi_nl80211_set_powersave;
+    wifi_utils_class->get_wake_on_wlan            = wifi_nl80211_get_wake_on_wlan,
+    wifi_utils_class->set_wake_on_wlan            = wifi_nl80211_set_wake_on_wlan,
+    wifi_utils_class->get_freq                    = wifi_nl80211_get_freq;
+    wifi_utils_class->find_freq                   = wifi_nl80211_find_freq;
+    wifi_utils_class->get_station                 = wifi_nl80211_get_station;
+    wifi_utils_class->indicate_addressing_running = wifi_nl80211_indicate_addressing_running;
+    wifi_utils_class->get_mesh_channel            = wifi_nl80211_get_mesh_channel;
+    wifi_utils_class->set_mesh_channel            = wifi_nl80211_set_mesh_channel;
+    wifi_utils_class->set_mesh_ssid               = wifi_nl80211_set_mesh_ssid;
+}
+
+NMWifiUtils *
+nm_wifi_utils_nl80211_new(int ifindex, struct nl_sock *genl)
+{
+    gs_unref_object NMWifiUtilsNl80211 *self        = NULL;
+    nm_auto_nlmsg struct nl_msg *       msg         = NULL;
+    struct nl80211_device_info          device_info = {};
+
+    if (!genl)
+        return NULL;
+
+    self = g_object_new(NM_TYPE_WIFI_UTILS_NL80211, NULL);
+
+    self->parent.ifindex = ifindex;
+    self->nl_sock        = genl;
+
+    self->id = genl_ctrl_resolve(self->nl_sock, "nl80211");
+    if (self->id < 0) {
+        _LOGD("genl_ctrl_resolve: failed to resolve \"nl80211\"");
+        return NULL;
+    }
+
+    self->phy = -1;
+
+    msg = nl80211_alloc_msg(self, NL80211_CMD_GET_WIPHY, 0);
+
+    device_info.self = self;
+    if (nl80211_send_and_recv(self, msg, nl80211_wiphy_info_handler, &device_info) < 0) {
+        _LOGD("NL80211_CMD_GET_WIPHY request failed");
+        return NULL;
+    }
+
+    if (!device_info.success) {
+        _LOGD("NL80211_CMD_GET_WIPHY request indicated failure");
+        return NULL;
+    }
+
+    if (!device_info.supported) {
+        _LOGD("driver does not fully support nl80211, falling back to WEXT");
+        return NULL;
+    }
+
+    if (!device_info.can_scan_ssid) {
+        _LOGE("driver does not support SSID scans");
+        return NULL;
+    }
+
+    if (device_info.num_freqs == 0 || device_info.freqs == NULL) {
+        _LOGE("driver reports no supported frequencies");
+        return NULL;
+    }
+
+    if (device_info.caps == 0) {
+        _LOGE("driver doesn't report support of any encryption");
+        return NULL;
+    }
+
+    self->phy         = device_info.phy;
+    self->freqs       = device_info.freqs;
+    self->num_freqs   = device_info.num_freqs;
+    self->parent.caps = device_info.caps;
+    self->can_wowlan  = device_info.can_wowlan;
+
+    _LOGD("using nl80211 for Wi-Fi device control");
+    return (NMWifiUtils *) g_steal_pointer(&self);
+}
diff --git a/src/core/platform/wifi/nm-wifi-utils-nl80211.h b/src/core/platform/wifi/nm-wifi-utils-nl80211.h
new file mode 100644
index 00000000..37c32ed7
--- /dev/null
+++ b/src/core/platform/wifi/nm-wifi-utils-nl80211.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2011 Intel Corporation. All rights reserved.
+ * Copyright (C) 2018 Red Hat, Inc.
+ */
+
+#ifndef __WIFI_UTILS_NL80211_H__
+#define __WIFI_UTILS_NL80211_H__
+
+#include "nm-wifi-utils.h"
+#include "nm-platform/nm-netlink.h"
+
+#define NM_TYPE_WIFI_UTILS_NL80211 (nm_wifi_utils_nl80211_get_type())
+#define NM_WIFI_UTILS_NL80211(obj) \
+    (G_TYPE_CHECK_INSTANCE_CAST((obj), NM_TYPE_WIFI_UTILS_NL80211, NMWifiUtilsNl80211))
+#define NM_WIFI_UTILS_NL80211_CLASS(klass) \
+    (G_TYPE_CHECK_CLASS_CAST((klass), NM_TYPE_WIFI_UTILS_NL80211, NMWifiUtilsNl80211Class))
+#define NM_IS_WIFI_UTILS_NL80211(obj) \
+    (G_TYPE_CHECK_INSTANCE_TYPE((obj), NM_TYPE_WIFI_UTILS_NL80211))
+#define NM_IS_WIFI_UTILS_NL80211_CLASS(klass) \
+    (G_TYPE_CHECK_CLASS_TYPE((klass), NM_TYPE_WIFI_UTILS_NL80211))
+#define NM_WIFI_UTILS_NL80211_GET_CLASS(obj) \
+    (G_TYPE_INSTANCE_GET_CLASS((obj), NM_TYPE_WIFI_UTILS_NL80211, NMWifiUtilsNl80211Class))
+
+GType nm_wifi_utils_nl80211_get_type(void);
+
+NMWifiUtils *nm_wifi_utils_nl80211_new(int ifindex, struct nl_sock *genl);
+
+#endif /* __WIFI_UTILS_NL80211_H__ */
diff --git a/src/core/platform/wifi/nm-wifi-utils-private.h b/src/core/platform/wifi/nm-wifi-utils-private.h
new file mode 100644
index 00000000..9ed57453
--- /dev/null
+++ b/src/core/platform/wifi/nm-wifi-utils-private.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2011 - 2018 Red Hat, Inc.
+ */
+
+#ifndef __WIFI_UTILS_PRIVATE_H__
+#define __WIFI_UTILS_PRIVATE_H__
+
+#include "nm-dbus-interface.h"
+#include "nm-wifi-utils.h"
+
+typedef struct {
+    GObjectClass parent;
+
+    NM80211Mode (*get_mode)(NMWifiUtils *data);
+
+    gboolean (*set_mode)(NMWifiUtils *data, const NM80211Mode mode);
+
+    /* Set power saving mode on an interface */
+    gboolean (*set_powersave)(NMWifiUtils *data, guint32 powersave);
+
+    /* Get WakeOnWLAN configuration on an interface */
+    NMSettingWirelessWakeOnWLan (*get_wake_on_wlan)(NMWifiUtils *data);
+
+    /* Set WakeOnWLAN mode on an interface */
+    gboolean (*set_wake_on_wlan)(NMWifiUtils *data, NMSettingWirelessWakeOnWLan wowl);
+
+    /* Return current frequency in MHz (really associated BSS frequency) */
+    guint32 (*get_freq)(NMWifiUtils *data);
+
+    /* Return first supported frequency in the zero-terminated list */
+    guint32 (*find_freq)(NMWifiUtils *data, const guint32 *freqs);
+
+    /*
+     * @out_bssid: must be NULL or an ETH_ALEN-byte buffer
+     * @out_quality: receives signal strength percentage 0 - 100% for the current BSSID, if not NULL
+     * @out_rate: receives current bitrate in Kbps if not NULL
+     *
+     * Returns %TRUE on succcess, %FALSE on errors or if not associated.
+     */
+    gboolean (*get_station)(NMWifiUtils *data,
+                            NMEtherAddr *out_bssid,
+                            int *        out_quality,
+                            guint32 *    out_rate);
+
+    /* OLPC Mesh-only functions */
+
+    guint32 (*get_mesh_channel)(NMWifiUtils *data);
+
+    /* channel == 0 means "auto channel" */
+    gboolean (*set_mesh_channel)(NMWifiUtils *data, guint32 channel);
+
+    /* ssid == NULL means "auto SSID" */
+    gboolean (*set_mesh_ssid)(NMWifiUtils *data, const guint8 *ssid, gsize len);
+
+    gboolean (*indicate_addressing_running)(NMWifiUtils *data, gboolean running);
+} NMWifiUtilsClass;
+
+struct NMWifiUtils {
+    GObject parent;
+
+    int                      ifindex;
+    NMDeviceWifiCapabilities caps;
+};
+
+#endif /* __WIFI_UTILS_PRIVATE_H__ */
diff --git a/src/core/platform/wifi/nm-wifi-utils-wext.c b/src/core/platform/wifi/nm-wifi-utils-wext.c
new file mode 100644
index 00000000..a44fcf62
--- /dev/null
+++ b/src/core/platform/wifi/nm-wifi-utils-wext.c
@@ -0,0 +1,836 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2005 - 2018 Red Hat, Inc.
+ * Copyright (C) 2006 - 2008 Novell, Inc.
+ */
+
+#include "src/core/nm-default-daemon.h"
+
+#include "nm-wifi-utils-wext.h"
+
+#include <sys/ioctl.h>
+#include <net/ethernet.h>
+#include <unistd.h>
+
+/* Hacks necessary to #include wireless.h; yay for WEXT */
+#ifndef __user
+    #define __user
+#endif
+#include <sys/types.h>
+#include <linux/types.h>
+#include <sys/socket.h>
+#include <linux/wireless.h>
+
+#include "nm-wifi-utils-private.h"
+#include "nm-utils.h"
+#include "nm-platform/nm-platform-utils.h"
+#include "nm-core-internal.h"
+#include "nm-core-utils.h"
+
+typedef struct {
+    NMWifiUtils       parent;
+    int               fd;
+    struct iw_quality max_qual;
+    gint8             num_freqs;
+    guint32           freqs[IW_MAX_FREQUENCIES];
+} NMWifiUtilsWext;
+
+typedef struct {
+    NMWifiUtilsClass parent;
+} NMWifiUtilsWextClass;
+
+G_DEFINE_TYPE(NMWifiUtilsWext, nm_wifi_utils_wext, NM_TYPE_WIFI_UTILS)
+
+/* Until a new wireless-tools comes out that has the defs and the structure,
+ * need to copy them here.
+ */
+/* Scan capability flags - in (struct iw_range *)->scan_capa */
+#define NM_IW_SCAN_CAPA_NONE  0x00
+#define NM_IW_SCAN_CAPA_ESSID 0x01
+
+struct iw_range_with_scan_capa {
+    guint32 throughput;
+    guint32 min_nwid;
+    guint32 max_nwid;
+    guint16 old_num_channels;
+    guint8  old_num_frequency;
+
+    guint8 scan_capa;
+    /* don't need the rest... */
+};
+
+#define _NMLOG_PREFIX_NAME "wifi-wext"
+#define _NMLOG(level, domain, ...)                                    \
+    G_STMT_START                                                      \
+    {                                                                 \
+        nm_log((level),                                               \
+               (domain),                                              \
+               NULL,                                                  \
+               NULL,                                                  \
+               "%s: " _NM_UTILS_MACRO_FIRST(__VA_ARGS__),             \
+               _NMLOG_PREFIX_NAME _NM_UTILS_MACRO_REST(__VA_ARGS__)); \
+    }                                                                 \
+    G_STMT_END
+
+static guint32
+iw_freq_to_uint32(const struct iw_freq *freq)
+{
+    if (freq->e == 0) {
+        /* Some drivers report channel not frequency.  Convert to a
+         * frequency; but this assumes that the device is in b/g mode.
+         */
+        if ((freq->m >= 1) && (freq->m <= 13))
+            return 2407 + (5 * freq->m);
+        else if (freq->m == 14)
+            return 2484;
+    }
+    return (guint32)((((double) freq->m) * nm_utils_exp10(freq->e)) / 1000000.0);
+}
+
+static void
+dispose(GObject *object)
+{
+    NMWifiUtilsWext *wext = NM_WIFI_UTILS_WEXT(object);
+
+    wext->fd = nm_close(wext->fd);
+}
+
+static gboolean
+get_ifname(int ifindex, char *buffer, const char *op)
+{
+    int errsv;
+
+    if (!nmp_utils_if_indextoname(ifindex, buffer)) {
+        errsv = errno;
+        _LOGW(LOGD_PLATFORM | LOGD_WIFI,
+              "error getting interface name for ifindex %d, operation '%s': %s (%d)",
+              ifindex,
+              op,
+              nm_strerror_native(errsv),
+              errsv);
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+static NM80211Mode
+wifi_wext_get_mode_ifname(NMWifiUtils *data, const char *ifname)
+{
+    NMWifiUtilsWext *wext = (NMWifiUtilsWext *) data;
+    struct iwreq     wrq;
+    int              errsv;
+
+    memset(&wrq, 0, sizeof(struct iwreq));
+    nm_utils_ifname_cpy(wrq.ifr_name, ifname);
+
+    if (ioctl(wext->fd, SIOCGIWMODE, &wrq) < 0) {
+        errsv = errno;
+        if (errsv != ENODEV) {
+            _LOGW(LOGD_PLATFORM | LOGD_WIFI, "(%s): error %d getting card mode", ifname, errsv);
+        }
+        return NM_802_11_MODE_UNKNOWN;
+    }
+
+    switch (wrq.u.mode) {
+    case IW_MODE_ADHOC:
+        return NM_802_11_MODE_ADHOC;
+    case IW_MODE_MASTER:
+        return NM_802_11_MODE_AP;
+    case IW_MODE_INFRA:
+    case IW_MODE_AUTO: /* hack for WEXT devices reporting IW_MODE_AUTO */
+        return NM_802_11_MODE_INFRA;
+    default:
+        break;
+    }
+    return NM_802_11_MODE_UNKNOWN;
+}
+
+static NM80211Mode
+wifi_wext_get_mode(NMWifiUtils *data)
+{
+    char ifname[IFNAMSIZ];
+
+    if (!get_ifname(data->ifindex, ifname, "get-mode"))
+        return FALSE;
+
+    return wifi_wext_get_mode_ifname(data, ifname);
+}
+
+static gboolean
+wifi_wext_set_mode(NMWifiUtils *data, const NM80211Mode mode)
+{
+    NMWifiUtilsWext *wext = (NMWifiUtilsWext *) data;
+    struct iwreq     wrq;
+    char             ifname[IFNAMSIZ];
+
+    if (!get_ifname(data->ifindex, ifname, "set-mode"))
+        return FALSE;
+
+    if (wifi_wext_get_mode_ifname(data, ifname) == mode)
+        return TRUE;
+
+    memset(&wrq, 0, sizeof(struct iwreq));
+    switch (mode) {
+    case NM_802_11_MODE_ADHOC:
+        wrq.u.mode = IW_MODE_ADHOC;
+        break;
+    case NM_802_11_MODE_AP:
+        wrq.u.mode = IW_MODE_MASTER;
+        break;
+    case NM_802_11_MODE_INFRA:
+        wrq.u.mode = IW_MODE_INFRA;
+        break;
+    default:
+        g_warn_if_reached();
+        return FALSE;
+    }
+
+    nm_utils_ifname_cpy(wrq.ifr_name, ifname);
+    if (ioctl(wext->fd, SIOCSIWMODE, &wrq) < 0) {
+        if (errno != ENODEV) {
+            _LOGE(LOGD_PLATFORM | LOGD_WIFI, "(%s): error setting mode %d", ifname, mode);
+        }
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+static gboolean
+wifi_wext_set_powersave(NMWifiUtils *data, guint32 powersave)
+{
+    NMWifiUtilsWext *wext = (NMWifiUtilsWext *) data;
+    struct iwreq     wrq;
+    char             ifname[IFNAMSIZ];
+
+    if (!get_ifname(data->ifindex, ifname, "set-powersave"))
+        return FALSE;
+
+    memset(&wrq, 0, sizeof(struct iwreq));
+    if (powersave == 1) {
+        wrq.u.power.flags = IW_POWER_ALL_R;
+    } else
+        wrq.u.power.disabled = 1;
+
+    nm_utils_ifname_cpy(wrq.ifr_name, ifname);
+    if (ioctl(wext->fd, SIOCSIWPOWER, &wrq) < 0) {
+        if (errno != ENODEV) {
+            _LOGE(LOGD_PLATFORM | LOGD_WIFI,
+                  "(%s): error setting powersave %" G_GUINT32_FORMAT,
+                  ifname,
+                  powersave);
+        }
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+static guint32
+wifi_wext_get_freq(NMWifiUtils *data)
+{
+    NMWifiUtilsWext *wext = (NMWifiUtilsWext *) data;
+    struct iwreq     wrq;
+    char             ifname[IFNAMSIZ];
+
+    if (!get_ifname(data->ifindex, ifname, "get-freq"))
+        return FALSE;
+
+    memset(&wrq, 0, sizeof(struct iwreq));
+    nm_utils_ifname_cpy(wrq.ifr_name, ifname);
+    if (ioctl(wext->fd, SIOCGIWFREQ, &wrq) < 0) {
+        _LOGW(LOGD_PLATFORM | LOGD_WIFI,
+              "(%s): error getting frequency: %s",
+              ifname,
+              nm_strerror_native(errno));
+        return 0;
+    }
+
+    return iw_freq_to_uint32(&wrq.u.freq);
+}
+
+static guint32
+wifi_wext_find_freq(NMWifiUtils *data, const guint32 *freqs)
+{
+    NMWifiUtilsWext *wext = (NMWifiUtilsWext *) data;
+    int              i;
+
+    for (i = 0; i < wext->num_freqs; i++) {
+        while (*freqs) {
+            if (wext->freqs[i] == *freqs)
+                return *freqs;
+            freqs++;
+        }
+    }
+    return 0;
+}
+
+static gboolean
+wifi_wext_get_bssid(NMWifiUtils *data, NMEtherAddr *out_bssid)
+{
+    NMWifiUtilsWext *wext = (NMWifiUtilsWext *) data;
+    struct iwreq     wrq;
+    char             ifname[IFNAMSIZ];
+
+    if (!get_ifname(data->ifindex, ifname, "get-bssid"))
+        return FALSE;
+
+    memset(&wrq, 0, sizeof(wrq));
+    nm_utils_ifname_cpy(wrq.ifr_name, ifname);
+    if (ioctl(wext->fd, SIOCGIWAP, &wrq) < 0) {
+        _LOGW(LOGD_PLATFORM | LOGD_WIFI,
+              "(%s): error getting associated BSSID: %s",
+              ifname,
+              nm_strerror_native(errno));
+        return FALSE;
+    }
+    memcpy(out_bssid, &(wrq.u.ap_addr.sa_data), ETH_ALEN);
+    return TRUE;
+}
+
+static guint32
+wifi_wext_get_rate(NMWifiUtils *data)
+{
+    NMWifiUtilsWext *wext = (NMWifiUtilsWext *) data;
+    struct iwreq     wrq;
+    int              err;
+    char             ifname[IFNAMSIZ];
+
+    if (!get_ifname(data->ifindex, ifname, "get-rate"))
+        return FALSE;
+
+    memset(&wrq, 0, sizeof(wrq));
+    nm_utils_ifname_cpy(wrq.ifr_name, ifname);
+    err = ioctl(wext->fd, SIOCGIWRATE, &wrq);
+    return ((err == 0) ? wrq.u.bitrate.value / 1000 : 0);
+}
+
+static int
+wext_qual_to_percent(const struct iw_quality *qual, const struct iw_quality *max_qual)
+{
+    int percent       = -1;
+    int level_percent = -1;
+
+    g_return_val_if_fail(qual != NULL, -1);
+    g_return_val_if_fail(max_qual != NULL, -1);
+
+    /* Magically convert the many different WEXT quality representations to a percentage */
+
+    _LOGD(LOGD_WIFI,
+          "QL: qual %d/%u/0x%X, level %d/%u/0x%X, noise %d/%u/0x%X, updated: 0x%X  ** MAX: qual "
+          "%d/%u/0x%X, level %d/%u/0x%X, noise %d/%u/0x%X, updated: 0x%X",
+          (__s8) qual->qual,
+          qual->qual,
+          qual->qual,
+          (__s8) qual->level,
+          qual->level,
+          qual->level,
+          (__s8) qual->noise,
+          qual->noise,
+          qual->noise,
+          qual->updated,
+          (__s8) max_qual->qual,
+          max_qual->qual,
+          max_qual->qual,
+          (__s8) max_qual->level,
+          max_qual->level,
+          max_qual->level,
+          (__s8) max_qual->noise,
+          max_qual->noise,
+          max_qual->noise,
+          max_qual->updated);
+
+    /* Try using the card's idea of the signal quality first as long as it tells us what the max quality is.
+     * Drivers that fill in quality values MUST treat them as percentages, ie the "Link Quality" MUST be
+     * bounded by 0 and max_qual->qual, and MUST change in a linear fashion.  Within those bounds, drivers
+     * are free to use whatever they want to calculate "Link Quality".
+     */
+    if ((max_qual->qual != 0) && !(max_qual->updated & IW_QUAL_QUAL_INVALID)
+        && !(qual->updated & IW_QUAL_QUAL_INVALID))
+        percent = (int) (100 * ((double) qual->qual / (double) max_qual->qual));
+
+    /* If the driver doesn't specify a complete and valid quality, we have two options:
+     *
+     * 1) dBm: driver must specify max_qual->level = 0, and have valid values for
+     *        qual->level and (qual->noise OR max_qual->noise)
+     * 2) raw RSSI: driver must specify max_qual->level > 0, and have valid values for
+     *        qual->level and max_qual->level
+     *
+     * This is the WEXT spec.  If this interpretation is wrong, I'll fix it.  Otherwise,
+     * If drivers don't conform to it, they are wrong and need to be fixed.
+     */
+
+    if ((max_qual->level == 0)
+        && !(max_qual->updated & IW_QUAL_LEVEL_INVALID) /* Valid max_qual->level == 0 */
+        && !(qual->updated & IW_QUAL_LEVEL_INVALID)     /* Must have valid qual->level */
+        && (((max_qual->noise > 0)
+             && !(max_qual->updated & IW_QUAL_NOISE_INVALID)) /* Must have valid max_qual->noise */
+            || ((qual->noise > 0)
+                && !(qual->updated & IW_QUAL_NOISE_INVALID))) /*    OR valid qual->noise */
+    ) {
+/* Absolute power values (dBm) */
+
+/* Reasonable fallbacks for dumb drivers that don't specify either level. */
+#define FALLBACK_NOISE_FLOOR_DBM -90
+#define FALLBACK_SIGNAL_MAX_DBM  -20
+        int max_level = FALLBACK_SIGNAL_MAX_DBM;
+        int noise     = FALLBACK_NOISE_FLOOR_DBM;
+        int level     = qual->level - 0x100;
+
+        level = CLAMP(level, FALLBACK_NOISE_FLOOR_DBM, FALLBACK_SIGNAL_MAX_DBM);
+
+        if ((qual->noise > 0) && !(qual->updated & IW_QUAL_NOISE_INVALID))
+            noise = qual->noise - 0x100;
+        else if ((max_qual->noise > 0) && !(max_qual->updated & IW_QUAL_NOISE_INVALID))
+            noise = max_qual->noise - 0x100;
+        noise = CLAMP(noise, FALLBACK_NOISE_FLOOR_DBM, FALLBACK_SIGNAL_MAX_DBM - 1);
+
+        /* A sort of signal-to-noise ratio calculation */
+        level_percent = (int) (100
+                               - 70
+                                     * (((double) max_level - (double) level)
+                                        / ((double) max_level - (double) noise)));
+        _LOGD(LOGD_WIFI,
+              "QL1: level_percent is %d.  max_level %d, level %d, noise_floor %d.",
+              level_percent,
+              max_level,
+              level,
+              noise);
+    } else if ((max_qual->level != 0)
+               && !(max_qual->updated
+                    & IW_QUAL_LEVEL_INVALID) /* Valid max_qual->level as upper bound */
+               && !(qual->updated & IW_QUAL_LEVEL_INVALID)) {
+        /* Relative power values (RSSI) */
+
+        int level = qual->level;
+
+        /* Signal level is relavtive (0 -> max_qual->level) */
+        level         = CLAMP(level, 0, max_qual->level);
+        level_percent = (int) (100 * ((double) level / (double) max_qual->level));
+        _LOGD(LOGD_WIFI,
+              "QL2: level_percent is %d.  max_level %d, level %d.",
+              level_percent,
+              max_qual->level,
+              level);
+    } else if (percent == -1) {
+        _LOGD(LOGD_WIFI,
+              "QL: Could not get quality %% value from driver.  Driver is probably buggy.");
+    }
+
+    /* If the quality percent was 0 or doesn't exist, then try to use signal levels instead */
+    if ((percent < 1) && (level_percent >= 0))
+        percent = level_percent;
+
+    _LOGD(LOGD_WIFI, "QL: Final quality percent is %d (%d).", percent, CLAMP(percent, 0, 100));
+    return (CLAMP(percent, 0, 100));
+}
+
+static int
+wifi_wext_get_qual(NMWifiUtils *data)
+{
+    NMWifiUtilsWext *    wext = (NMWifiUtilsWext *) data;
+    struct iwreq         wrq;
+    struct iw_statistics stats;
+    char                 ifname[IFNAMSIZ];
+
+    if (!get_ifname(data->ifindex, ifname, "get-qual"))
+        return FALSE;
+
+    memset(&stats, 0, sizeof(stats));
+    wrq.u.data.pointer = &stats;
+    wrq.u.data.length  = sizeof(stats);
+    wrq.u.data.flags   = 1; /* Clear updated flag */
+    nm_utils_ifname_cpy(wrq.ifr_name, ifname);
+
+    if (ioctl(wext->fd, SIOCGIWSTATS, &wrq) < 0) {
+        _LOGW(LOGD_PLATFORM | LOGD_WIFI,
+              "(%s): error getting signal strength: %s",
+              ifname,
+              nm_strerror_native(errno));
+        return -1;
+    }
+
+    return wext_qual_to_percent(&stats.qual, &wext->max_qual);
+}
+
+static gboolean
+wifi_wext_get_station(NMWifiUtils *data,
+                      NMEtherAddr *out_bssid,
+                      int *        out_quality,
+                      guint32 *    out_rate)
+{
+    NMEtherAddr local_addr;
+
+    if (!out_bssid && !out_quality && !out_rate) {
+        /* hm, the caller requested no parameter at all?
+         * Don't simply return TRUE, but at least check that
+         * we can successfully fetch the bssid. */
+        out_bssid = &local_addr;
+    }
+
+    if (out_bssid) {
+        if (!wifi_wext_get_bssid(data, out_bssid))
+            return FALSE;
+    }
+    if (out_quality) {
+        *out_quality = wifi_wext_get_qual(data);
+        if (*out_quality < 0)
+            return FALSE;
+    }
+    if (out_rate) {
+        *out_rate = wifi_wext_get_rate(data);
+        if (*out_rate == 0)
+            return FALSE;
+    }
+    return TRUE;
+}
+
+/*****************************************************************************/
+/* OLPC Mesh-only functions */
+
+static guint32
+wifi_wext_get_mesh_channel(NMWifiUtils *data)
+{
+    NMWifiUtilsWext *wext = (NMWifiUtilsWext *) data;
+    guint32          freq;
+    int              i;
+
+    freq = nm_wifi_utils_get_freq(data);
+    for (i = 0; i < wext->num_freqs; i++) {
+        if (freq == wext->freqs[i])
+            return i + 1;
+    }
+    return 0;
+}
+
+static gboolean
+wifi_wext_set_mesh_channel(NMWifiUtils *data, guint32 channel)
+{
+    NMWifiUtilsWext *wext = (NMWifiUtilsWext *) data;
+    struct iwreq     wrq;
+    char             ifname[IFNAMSIZ];
+
+    if (!get_ifname(data->ifindex, ifname, "set-mesh-channel"))
+        return FALSE;
+
+    memset(&wrq, 0, sizeof(struct iwreq));
+    nm_utils_ifname_cpy(wrq.ifr_name, ifname);
+
+    if (channel > 0) {
+        wrq.u.freq.flags = IW_FREQ_FIXED;
+        wrq.u.freq.e     = 0;
+        wrq.u.freq.m     = channel;
+    }
+
+    if (ioctl(wext->fd, SIOCSIWFREQ, &wrq) < 0) {
+        _LOGE(LOGD_PLATFORM | LOGD_WIFI | LOGD_OLPC,
+              "(%s): error setting channel to %d: %s",
+              ifname,
+              channel,
+              nm_strerror_native(errno));
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+static gboolean
+wifi_wext_set_mesh_ssid(NMWifiUtils *data, const guint8 *ssid, gsize len)
+{
+    NMWifiUtilsWext *wext = (NMWifiUtilsWext *) data;
+    struct iwreq     wrq;
+    char             buf[IW_ESSID_MAX_SIZE + 1];
+    char             ifname[IFNAMSIZ];
+    int              errsv;
+
+    if (!get_ifname(data->ifindex, ifname, "set-mesh-ssid"))
+        return FALSE;
+
+    memset(buf, 0, sizeof(buf));
+    memcpy(buf, ssid, MIN(sizeof(buf) - 1, len));
+
+    wrq.u.essid.pointer = (caddr_t) buf;
+    wrq.u.essid.length  = len;
+    wrq.u.essid.flags   = (len > 0) ? 1 : 0; /* 1=enable SSID, 0=disable/any */
+
+    nm_utils_ifname_cpy(wrq.ifr_name, ifname);
+    if (ioctl(wext->fd, SIOCSIWESSID, &wrq) == 0)
+        return TRUE;
+
+    errsv = errno;
+    if (errsv != ENODEV) {
+        gs_free char *ssid_str = NULL;
+
+        _LOGE(LOGD_PLATFORM | LOGD_WIFI | LOGD_OLPC,
+              "(%s): error setting SSID to %s: %s",
+              ifname,
+              (ssid_str = _nm_utils_ssid_to_string_arr(ssid, len)),
+              nm_strerror_native(errsv));
+    }
+
+    return FALSE;
+}
+
+/*****************************************************************************/
+
+static gboolean
+wext_can_scan_ifname(NMWifiUtilsWext *wext, const char *ifname)
+{
+    struct iwreq wrq;
+
+    memset(&wrq, 0, sizeof(struct iwreq));
+    nm_utils_ifname_cpy(wrq.ifr_name, ifname);
+    if (ioctl(wext->fd, SIOCSIWSCAN, &wrq) < 0) {
+        if (errno == EOPNOTSUPP)
+            return FALSE;
+    }
+    return TRUE;
+}
+
+static gboolean
+wext_get_range_ifname(NMWifiUtilsWext *wext,
+                      const char *     ifname,
+                      struct iw_range *range,
+                      guint32 *        response_len)
+{
+    int          i       = 26;
+    gboolean     success = FALSE;
+    struct iwreq wrq;
+    int          errsv;
+
+    memset(&wrq, 0, sizeof(struct iwreq));
+    nm_utils_ifname_cpy(wrq.ifr_name, ifname);
+    wrq.u.data.pointer = (caddr_t) range;
+    wrq.u.data.length  = sizeof(struct iw_range);
+
+    /* Need to give some drivers time to recover after suspend/resume
+     * (ex ipw3945 takes a few seconds to talk to its regulatory daemon;
+     * see rh bz#362421)
+     */
+    while (i-- > 0) {
+        if (ioctl(wext->fd, SIOCGIWRANGE, &wrq) == 0) {
+            if (response_len)
+                *response_len = wrq.u.data.length;
+            success = TRUE;
+            break;
+        } else {
+            errsv = errno;
+            if (errsv != EAGAIN) {
+                _LOGE(LOGD_PLATFORM | LOGD_WIFI,
+                      "(%s): couldn't get driver range information (%d).",
+                      ifname,
+                      errsv);
+                break;
+            }
+        }
+
+        g_usleep(G_USEC_PER_SEC / 4);
+    }
+
+    if (i <= 0) {
+        _LOGW(LOGD_PLATFORM | LOGD_WIFI,
+              "(%s): driver took too long to respond to IWRANGE query.",
+              ifname);
+    }
+
+    return success;
+}
+
+#define WPA_CAPS                                                                              \
+    (NM_WIFI_DEVICE_CAP_CIPHER_TKIP | NM_WIFI_DEVICE_CAP_CIPHER_CCMP | NM_WIFI_DEVICE_CAP_WPA \
+     | NM_WIFI_DEVICE_CAP_RSN)
+
+static guint32
+wext_get_caps(NMWifiUtilsWext *wext, const char *ifname, struct iw_range *range)
+{
+    guint32 caps = NM_WIFI_DEVICE_CAP_NONE;
+
+    g_return_val_if_fail(wext != NULL, NM_WIFI_DEVICE_CAP_NONE);
+    g_return_val_if_fail(range != NULL, NM_WIFI_DEVICE_CAP_NONE);
+
+    /* All drivers should support WEP by default */
+    caps |= NM_WIFI_DEVICE_CAP_CIPHER_WEP40 | NM_WIFI_DEVICE_CAP_CIPHER_WEP104;
+
+    if (range->enc_capa & IW_ENC_CAPA_CIPHER_TKIP)
+        caps |= NM_WIFI_DEVICE_CAP_CIPHER_TKIP;
+
+    if (range->enc_capa & IW_ENC_CAPA_CIPHER_CCMP)
+        caps |= NM_WIFI_DEVICE_CAP_CIPHER_CCMP;
+
+    if (range->enc_capa & IW_ENC_CAPA_WPA)
+        caps |= NM_WIFI_DEVICE_CAP_WPA;
+
+    if (range->enc_capa & IW_ENC_CAPA_WPA2)
+        caps |= NM_WIFI_DEVICE_CAP_RSN;
+
+    /* Check for cipher support but not WPA support */
+    if ((caps & (NM_WIFI_DEVICE_CAP_CIPHER_TKIP | NM_WIFI_DEVICE_CAP_CIPHER_CCMP))
+        && !(caps & (NM_WIFI_DEVICE_CAP_WPA | NM_WIFI_DEVICE_CAP_RSN))) {
+        _LOGW(LOGD_WIFI,
+              "%s: device supports WPA ciphers but not WPA protocol; WPA unavailable.",
+              ifname);
+        caps &= ~WPA_CAPS;
+    }
+
+    /* Check for WPA support but not cipher support */
+    if ((caps & (NM_WIFI_DEVICE_CAP_WPA | NM_WIFI_DEVICE_CAP_RSN))
+        && !(caps & (NM_WIFI_DEVICE_CAP_CIPHER_TKIP | NM_WIFI_DEVICE_CAP_CIPHER_CCMP))) {
+        _LOGW(LOGD_WIFI,
+              "%s: device supports WPA protocol but not WPA ciphers; WPA unavailable.",
+              ifname);
+        caps &= ~WPA_CAPS;
+    }
+
+    /* There's no way to detect Ad-Hoc/AP mode support with WEXT
+     * (other than actually trying to do it), so just assume that
+     * Ad-Hoc is supported and AP isn't.
+     */
+    caps |= NM_WIFI_DEVICE_CAP_ADHOC;
+
+    return caps;
+}
+
+/*****************************************************************************/
+
+static void
+nm_wifi_utils_wext_init(NMWifiUtilsWext *self)
+{}
+
+static void
+nm_wifi_utils_wext_class_init(NMWifiUtilsWextClass *klass)
+{
+    GObjectClass *    object_class     = G_OBJECT_CLASS(klass);
+    NMWifiUtilsClass *wifi_utils_class = NM_WIFI_UTILS_CLASS(klass);
+
+    object_class->dispose = dispose;
+
+    wifi_utils_class->get_mode         = wifi_wext_get_mode;
+    wifi_utils_class->set_mode         = wifi_wext_set_mode;
+    wifi_utils_class->set_powersave    = wifi_wext_set_powersave;
+    wifi_utils_class->get_freq         = wifi_wext_get_freq;
+    wifi_utils_class->find_freq        = wifi_wext_find_freq;
+    wifi_utils_class->get_station      = wifi_wext_get_station;
+    wifi_utils_class->get_mesh_channel = wifi_wext_get_mesh_channel;
+    wifi_utils_class->set_mesh_channel = wifi_wext_set_mesh_channel;
+    wifi_utils_class->set_mesh_ssid    = wifi_wext_set_mesh_ssid;
+}
+
+NMWifiUtils *
+nm_wifi_utils_wext_new(int ifindex, gboolean check_scan)
+{
+    NMWifiUtilsWext *               wext;
+    struct iw_range                 range;
+    guint32                         response_len = 0;
+    struct iw_range_with_scan_capa *scan_capa_range;
+    int                             i;
+    gboolean                        freq_valid = FALSE, has_5ghz = FALSE, has_2ghz = FALSE;
+    char                            ifname[IFNAMSIZ];
+
+    if (!nmp_utils_if_indextoname(ifindex, ifname)) {
+        _LOGW(LOGD_PLATFORM | LOGD_WIFI, "can't determine interface name for ifindex %d", ifindex);
+        return NULL;
+    }
+
+    wext = g_object_new(NM_TYPE_WIFI_UTILS_WEXT, NULL);
+
+    wext->parent.ifindex = ifindex;
+    wext->fd             = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
+    if (wext->fd < 0)
+        goto error;
+
+    memset(&range, 0, sizeof(struct iw_range));
+    if (wext_get_range_ifname(wext, ifname, &range, &response_len) == FALSE) {
+        _LOGI(LOGD_PLATFORM | LOGD_WIFI, "(%s): driver WEXT range request failed", ifname);
+        goto error;
+    }
+
+    if ((response_len < 300) || (range.we_version_compiled < 21)) {
+        _LOGI(LOGD_PLATFORM | LOGD_WIFI,
+              "(%s): driver WEXT version too old (got %d, expected >= 21)",
+              ifname,
+              range.we_version_compiled);
+        goto error;
+    }
+
+    wext->max_qual.qual    = range.max_qual.qual;
+    wext->max_qual.level   = range.max_qual.level;
+    wext->max_qual.noise   = range.max_qual.noise;
+    wext->max_qual.updated = range.max_qual.updated;
+
+    wext->num_freqs = MIN(range.num_frequency, IW_MAX_FREQUENCIES);
+    for (i = 0; i < wext->num_freqs; i++) {
+        wext->freqs[i] = iw_freq_to_uint32(&range.freq[i]);
+        freq_valid     = TRUE;
+        if (wext->freqs[i] > 2400 && wext->freqs[i] < 2500)
+            has_2ghz = TRUE;
+        else if (wext->freqs[i] > 4900 && wext->freqs[i] < 6000)
+            has_5ghz = TRUE;
+    }
+
+    /* Check for scanning capability; cards that can't scan are not supported */
+    if (check_scan && (wext_can_scan_ifname(wext, ifname) == FALSE)) {
+        _LOGI(LOGD_PLATFORM | LOGD_WIFI, "(%s): drivers that cannot scan are unsupported", ifname);
+        goto error;
+    }
+
+    /* Check for the ability to scan specific SSIDs.  Until the scan_capa
+     * field gets added to wireless-tools, need to work around that by casting
+     * to the custom structure.
+     */
+    scan_capa_range = (struct iw_range_with_scan_capa *) &range;
+    if (scan_capa_range->scan_capa & NM_IW_SCAN_CAPA_ESSID) {
+        _LOGI(LOGD_PLATFORM | LOGD_WIFI,
+              "(%s): driver supports SSID scans (scan_capa 0x%02X).",
+              ifname,
+              scan_capa_range->scan_capa);
+    } else {
+        _LOGI(LOGD_PLATFORM | LOGD_WIFI,
+              "(%s): driver does not support SSID scans (scan_capa 0x%02X).",
+              ifname,
+              scan_capa_range->scan_capa);
+    }
+
+    wext->parent.caps = wext_get_caps(wext, ifname, &range);
+    if (freq_valid)
+        wext->parent.caps |= NM_WIFI_DEVICE_CAP_FREQ_VALID;
+    if (has_2ghz)
+        wext->parent.caps |= NM_WIFI_DEVICE_CAP_FREQ_2GHZ;
+    if (has_5ghz)
+        wext->parent.caps |= NM_WIFI_DEVICE_CAP_FREQ_5GHZ;
+
+    _LOGI(LOGD_PLATFORM | LOGD_WIFI, "(%s): using WEXT for Wi-Fi device control", ifname);
+
+    return (NMWifiUtils *) wext;
+
+error:
+    g_object_unref(wext);
+    return NULL;
+}
+
+gboolean
+nm_wifi_utils_wext_is_wifi(const char *iface)
+{
+    int          fd;
+    struct iwreq iwr;
+    gboolean     is_wifi = FALSE;
+
+    /* performing an ioctl on a non-existing name may cause the automatic
+     * loading of kernel modules, which should be avoided.
+     *
+     * Usually, we should thus make sure that an interface with this name
+     * exists.
+     *
+     * Note that wifi_wext_is_wifi() has only one caller which just verified
+     * that an interface with this name exists.
+     */
+
+    fd = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
+    if (fd >= 0) {
+        nm_utils_ifname_cpy(iwr.ifr_ifrn.ifrn_name, iface);
+        if (ioctl(fd, SIOCGIWNAME, &iwr) == 0)
+            is_wifi = TRUE;
+        nm_close(fd);
+    }
+    return is_wifi;
+}
diff --git a/src/core/platform/wifi/nm-wifi-utils-wext.h b/src/core/platform/wifi/nm-wifi-utils-wext.h
new file mode 100644
index 00000000..d6f3453c
--- /dev/null
+++ b/src/core/platform/wifi/nm-wifi-utils-wext.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2011 - 2018 Red Hat, Inc.
+ */
+
+#ifndef __WIFI_UTILS_WEXT_H__
+#define __WIFI_UTILS_WEXT_H__
+
+#include "nm-wifi-utils.h"
+
+#define NM_TYPE_WIFI_UTILS_WEXT (nm_wifi_utils_wext_get_type())
+#define NM_WIFI_UTILS_WEXT(obj) \
+    (G_TYPE_CHECK_INSTANCE_CAST((obj), NM_TYPE_WIFI_UTILS_WEXT, NMWifiUtilsWext))
+#define NM_WIFI_UTILS_WEXT_CLASS(klass) \
+    (G_TYPE_CHECK_CLASS_CAST((klass), NM_TYPE_WIFI_UTILS_WEXT, NMWifiUtilsWextClass))
+#define NM_IS_WIFI_UTILS_WEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), NM_TYPE_WIFI_UTILS_WEXT))
+#define NM_IS_WIFI_UTILS_WEXT_CLASS(klass) \
+    (G_TYPE_CHECK_CLASS_TYPE((klass), NM_TYPE_WIFI_UTILS_WEXT))
+#define NM_WIFI_UTILS_WEXT_GET_CLASS(obj) \
+    (G_TYPE_INSTANCE_GET_CLASS((obj), NM_TYPE_WIFI_UTILS_WEXT, NMWifiUtilsWextClass))
+
+GType nm_wifi_utils_wext_get_type(void);
+
+NMWifiUtils *nm_wifi_utils_wext_new(int ifindex, gboolean check_scan);
+
+gboolean nm_wifi_utils_wext_is_wifi(const char *iface);
+
+#endif /* __WIFI_UTILS_WEXT_H__ */
diff --git a/src/core/platform/wifi/nm-wifi-utils.c b/src/core/platform/wifi/nm-wifi-utils.c
new file mode 100644
index 00000000..49ae1811
--- /dev/null
+++ b/src/core/platform/wifi/nm-wifi-utils.c
@@ -0,0 +1,211 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2005 - 2018 Red Hat, Inc.
+ * Copyright (C) 2006 - 2008 Novell, Inc.
+ */
+
+#include "src/core/nm-default-daemon.h"
+
+#include "nm-wifi-utils.h"
+
+#include <sys/stat.h>
+#include <stdio.h>
+#include <fcntl.h>
+
+#include "nm-wifi-utils-private.h"
+#include "nm-wifi-utils-nl80211.h"
+#if HAVE_WEXT
+    #include "nm-wifi-utils-wext.h"
+#endif
+#include "nm-core-utils.h"
+
+#include "nm-platform/nm-platform-utils.h"
+
+G_DEFINE_ABSTRACT_TYPE(NMWifiUtils, nm_wifi_utils, G_TYPE_OBJECT)
+
+/*****************************************************************************/
+
+static void
+nm_wifi_utils_init(NMWifiUtils *self)
+{}
+
+static void
+nm_wifi_utils_class_init(NMWifiUtilsClass *klass)
+{}
+
+NMWifiUtils *
+nm_wifi_utils_new(int ifindex, struct nl_sock *genl, gboolean check_scan)
+{
+    NMWifiUtils *ret;
+
+    g_return_val_if_fail(ifindex > 0, NULL);
+
+    ret = nm_wifi_utils_nl80211_new(ifindex, genl);
+
+#if HAVE_WEXT
+    if (ret == NULL)
+        ret = nm_wifi_utils_wext_new(ifindex, check_scan);
+#endif
+
+    return ret;
+}
+
+NMDeviceWifiCapabilities
+nm_wifi_utils_get_caps(NMWifiUtils *data)
+{
+    g_return_val_if_fail(data != NULL, NM_WIFI_DEVICE_CAP_NONE);
+
+    return data->caps;
+}
+
+NM80211Mode
+nm_wifi_utils_get_mode(NMWifiUtils *data)
+{
+    g_return_val_if_fail(data != NULL, NM_802_11_MODE_UNKNOWN);
+    return NM_WIFI_UTILS_GET_CLASS(data)->get_mode(data);
+}
+
+gboolean
+nm_wifi_utils_set_mode(NMWifiUtils *data, const NM80211Mode mode)
+{
+    NMWifiUtilsClass *klass;
+
+    g_return_val_if_fail(data != NULL, FALSE);
+    g_return_val_if_fail((mode == NM_802_11_MODE_INFRA) || (mode == NM_802_11_MODE_AP)
+                             || (mode == NM_802_11_MODE_ADHOC) || (mode == NM_802_11_MODE_MESH),
+                         FALSE);
+
+    klass = NM_WIFI_UTILS_GET_CLASS(data);
+
+    /* nl80211 probably doesn't need this */
+    return klass->set_mode ? klass->set_mode(data, mode) : TRUE;
+}
+
+gboolean
+nm_wifi_utils_set_powersave(NMWifiUtils *data, guint32 powersave)
+{
+    NMWifiUtilsClass *klass;
+
+    g_return_val_if_fail(data != NULL, FALSE);
+
+    klass = NM_WIFI_UTILS_GET_CLASS(data);
+    return klass->set_powersave ? klass->set_powersave(data, powersave) : TRUE;
+}
+
+NMSettingWirelessWakeOnWLan
+nm_wifi_utils_get_wake_on_wlan(NMWifiUtils *data)
+{
+    NMWifiUtilsClass *klass;
+
+    g_return_val_if_fail(data != NULL, NM_SETTING_WIRELESS_WAKE_ON_WLAN_IGNORE);
+
+    klass = NM_WIFI_UTILS_GET_CLASS(data);
+
+    return klass->get_wake_on_wlan ? klass->get_wake_on_wlan(data)
+                                   : NM_SETTING_WIRELESS_WAKE_ON_WLAN_IGNORE;
+}
+
+gboolean
+nm_wifi_utils_set_wake_on_wlan(NMWifiUtils *data, NMSettingWirelessWakeOnWLan wowl)
+{
+    NMWifiUtilsClass *klass;
+
+    g_return_val_if_fail(data != NULL, FALSE);
+
+    klass = NM_WIFI_UTILS_GET_CLASS(data);
+    return klass->set_wake_on_wlan ? klass->set_wake_on_wlan(data, wowl) : FALSE;
+}
+
+guint32
+nm_wifi_utils_get_freq(NMWifiUtils *data)
+{
+    g_return_val_if_fail(data != NULL, 0);
+    return NM_WIFI_UTILS_GET_CLASS(data)->get_freq(data);
+}
+
+guint32
+nm_wifi_utils_find_freq(NMWifiUtils *data, const guint32 *freqs)
+{
+    g_return_val_if_fail(data != NULL, 0);
+    g_return_val_if_fail(freqs != NULL, 0);
+    return NM_WIFI_UTILS_GET_CLASS(data)->find_freq(data, freqs);
+}
+
+gboolean
+nm_wifi_utils_get_station(NMWifiUtils *data,
+                          NMEtherAddr *out_bssid,
+                          int *        out_quality,
+                          guint32 *    out_rate)
+{
+    g_return_val_if_fail(data != NULL, FALSE);
+
+    return NM_WIFI_UTILS_GET_CLASS(data)->get_station(data, out_bssid, out_quality, out_rate);
+}
+
+gboolean
+nm_wifi_utils_is_wifi(int dirfd, const char *ifname)
+{
+    g_return_val_if_fail(dirfd >= 0, FALSE);
+
+    if (faccessat(dirfd, "phy80211", F_OK, 0) == 0)
+        return TRUE;
+#if HAVE_WEXT
+    if (nm_wifi_utils_wext_is_wifi(ifname))
+        return TRUE;
+#endif
+    return FALSE;
+}
+
+/* OLPC Mesh-only functions */
+
+guint32
+nm_wifi_utils_get_mesh_channel(NMWifiUtils *data)
+{
+    NMWifiUtilsClass *klass;
+
+    g_return_val_if_fail(data != NULL, FALSE);
+
+    klass = NM_WIFI_UTILS_GET_CLASS(data);
+    g_return_val_if_fail(klass->get_mesh_channel != NULL, FALSE);
+
+    return klass->get_mesh_channel(data);
+}
+
+gboolean
+nm_wifi_utils_set_mesh_channel(NMWifiUtils *data, guint32 channel)
+{
+    NMWifiUtilsClass *klass;
+
+    g_return_val_if_fail(data != NULL, FALSE);
+    g_return_val_if_fail(channel <= 13, FALSE);
+
+    klass = NM_WIFI_UTILS_GET_CLASS(data);
+    g_return_val_if_fail(klass->set_mesh_channel != NULL, FALSE);
+
+    return klass->set_mesh_channel(data, channel);
+}
+
+gboolean
+nm_wifi_utils_set_mesh_ssid(NMWifiUtils *data, const guint8 *ssid, gsize len)
+{
+    NMWifiUtilsClass *klass;
+
+    g_return_val_if_fail(data != NULL, FALSE);
+
+    klass = NM_WIFI_UTILS_GET_CLASS(data);
+    g_return_val_if_fail(klass->set_mesh_ssid != NULL, FALSE);
+
+    return klass->set_mesh_ssid(data, ssid, len);
+}
+
+gboolean
+nm_wifi_utils_indicate_addressing_running(NMWifiUtils *data, gboolean running)
+{
+    NMWifiUtilsClass *klass;
+
+    g_return_val_if_fail(data != NULL, FALSE);
+
+    klass = NM_WIFI_UTILS_GET_CLASS(data);
+    return klass->indicate_addressing_running ? klass->indicate_addressing_running(data, running)
+                                              : FALSE;
+}
diff --git a/src/core/platform/wifi/nm-wifi-utils.h b/src/core/platform/wifi/nm-wifi-utils.h
new file mode 100644
index 00000000..a252e43e
--- /dev/null
+++ b/src/core/platform/wifi/nm-wifi-utils.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2005 - 2018 Red Hat, Inc.
+ * Copyright (C) 2006 - 2008 Novell, Inc.
+ */
+
+#ifndef __WIFI_UTILS_H__
+#define __WIFI_UTILS_H__
+
+#include <net/ethernet.h>
+
+#include "nm-dbus-interface.h"
+#include "nm-setting-wireless.h"
+#include "nm-platform/nm-netlink.h"
+
+typedef struct NMWifiUtils NMWifiUtils;
+
+#define NM_TYPE_WIFI_UTILS (nm_wifi_utils_get_type())
+#define NM_WIFI_UTILS(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), NM_TYPE_WIFI_UTILS, NMWifiUtils))
+#define NM_WIFI_UTILS_CLASS(klass) \
+    (G_TYPE_CHECK_CLASS_CAST((klass), NM_TYPE_WIFI_UTILS, NMWifiUtilsClass))
+#define NM_IS_WIFI_UTILS(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj), NM_TYPE_WIFI_UTILS))
+#define NM_IS_WIFI_UTILS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), NM_TYPE_WIFI_UTILS))
+#define NM_WIFI_UTILS_GET_CLASS(obj) \
+    (G_TYPE_INSTANCE_GET_CLASS((obj), NM_TYPE_WIFI_UTILS, NMWifiUtilsClass))
+
+GType nm_wifi_utils_get_type(void);
+
+gboolean nm_wifi_utils_is_wifi(int dirfd, const char *ifname);
+
+NMWifiUtils *nm_wifi_utils_new(int ifindex, struct nl_sock *genl, gboolean check_scan);
+
+NMDeviceWifiCapabilities nm_wifi_utils_get_caps(NMWifiUtils *data);
+
+NM80211Mode nm_wifi_utils_get_mode(NMWifiUtils *data);
+
+gboolean nm_wifi_utils_set_mode(NMWifiUtils *data, const NM80211Mode mode);
+
+/* Returns frequency in MHz */
+guint32 nm_wifi_utils_get_freq(NMWifiUtils *data);
+
+/* Return the first supported frequency in the zero-terminated list.
+ * Frequencies are specified in MHz. */
+guint32 nm_wifi_utils_find_freq(NMWifiUtils *data, const guint32 *freqs);
+
+/*
+ * @out_bssid: must be NULL or an ETH_ALEN-byte buffer
+ * @out_quality: receives signal quality in 0 - 100% range if not NULL
+ * @out_rate: receives current bitrate in Kbps if not NULL
+ *
+ * Returns %TRUE on succcess.
+ */
+gboolean nm_wifi_utils_get_station(NMWifiUtils *data,
+                                   NMEtherAddr *out_bssid,
+                                   int *        out_quality,
+                                   guint32 *    out_rate);
+
+/* Tells the driver DHCP or SLAAC is running */
+gboolean nm_wifi_utils_indicate_addressing_running(NMWifiUtils *data, gboolean running);
+
+gboolean nm_wifi_utils_set_powersave(NMWifiUtils *data, guint32 powersave);
+
+NMSettingWirelessWakeOnWLan nm_wifi_utils_get_wake_on_wlan(NMWifiUtils *data);
+
+gboolean nm_wifi_utils_set_wake_on_wlan(NMWifiUtils *data, NMSettingWirelessWakeOnWLan wowl);
+
+/* OLPC Mesh-only functions */
+guint32 nm_wifi_utils_get_mesh_channel(NMWifiUtils *data);
+
+gboolean nm_wifi_utils_set_mesh_channel(NMWifiUtils *data, guint32 channel);
+
+gboolean nm_wifi_utils_set_mesh_ssid(NMWifiUtils *data, const guint8 *ssid, gsize len);
+
+#endif /* __WIFI_UTILS_H__ */