On Thu, May 30, 2019 at 12:47 PM Dan Williams <dcbw@xxxxxxxxxx> wrote:
>
> On Thu, 2019-05-30 at 11:10 -0700, Eric Caruso wrote:
> > Add D-Bus property:
> > * MACAddressRandomizationMask: a{say}
> >
> > which configure random MAC address functionality in the Wi-Fi
> > driver via netlink. This also fixes weird pointer ownership
> > that was causing memory issues.
>
> All the dbus stuff LGTM.
>
> Dan
Any other comments about this? It hasn't seen any discussion in a few weeks.
>
> > Signed-off-by: Eric Caruso <ejcaruso@xxxxxxxxxxxx>
> > ---
> > doc/dbus.doxygen | 5 +
> > wpa_supplicant/ctrl_iface.c | 55 +--------
> > wpa_supplicant/dbus/dbus_new.c | 5 +
> > wpa_supplicant/dbus/dbus_new_handlers.c | 153
> > ++++++++++++++++++++++++
> > wpa_supplicant/dbus/dbus_new_handlers.h | 2 +
> > wpa_supplicant/scan.c | 90 ++++++++------
> > wpa_supplicant/scan.h | 2 +
> > wpa_supplicant/wpa_supplicant.c | 57 +++++++++
> > wpa_supplicant/wpa_supplicant_i.h | 5 +
> > 9 files changed, 288 insertions(+), 86 deletions(-)
> >
> > diff --git a/doc/dbus.doxygen b/doc/dbus.doxygen
> > index 072ed3486..9f6af52b1 100644
> > --- a/doc/dbus.doxygen
> > +++ b/doc/dbus.doxygen
> > @@ -1043,6 +1043,11 @@ fi.w1.wpa_supplicant1.CreateInterface.
> > <h3>WpsPriority - s - (read/write)</h3>
> > <p>Priority for the networks added through WPS</p>
> > </li>
> > +
> > + <li>
> > + <h3>MACAddressRandomizationMask - a{say} - (read/write)</h3>
> > + <p>Masks to show which bits not to randomize with MAC address
> > randomization. Possible keys are "scan", "sched_scan", and "pno".
> > Values must be an array of 6 bytes.</p>
> > + </li>
> > </ul>
> >
> > \subsection dbus_interface_signals Signals
> > diff --git a/wpa_supplicant/ctrl_iface.c
> > b/wpa_supplicant/ctrl_iface.c
> > index 10f1908f8..8efc08d4d 100644
> > --- a/wpa_supplicant/ctrl_iface.c
> > +++ b/wpa_supplicant/ctrl_iface.c
> > @@ -9626,59 +9626,10 @@ static int
> > wpas_ctrl_iface_mac_rand_scan(struct wpa_supplicant *wpa_s,
> > return -1;
> > }
> >
> > - if (!enable) {
> > - wpas_mac_addr_rand_scan_clear(wpa_s, type);
> > - if (wpa_s->pno) {
> > - if (type & MAC_ADDR_RAND_PNO) {
> > - wpas_stop_pno(wpa_s);
> > - wpas_start_pno(wpa_s);
> > - }
> > - } else if (wpa_s->sched_scanning &&
> > - (type & MAC_ADDR_RAND_SCHED_SCAN)) {
> > - wpas_scan_restart_sched_scan(wpa_s);
> > - }
> > - return 0;
> > - }
> > + if (!enable)
> > + return wpas_disable_mac_addr_randomization(wpa_s,
> > type);
> >
> > - if ((addr && !mask) || (!addr && mask)) {
> > - wpa_printf(MSG_INFO,
> > - "CTRL: MAC_RAND_SCAN invalid addr/mask
> > combination");
> > - return -1;
> > - }
> > -
> > - if (addr && mask && (!(mask[0] & 0x01) || (addr[0] & 0x01))) {
> > - wpa_printf(MSG_INFO,
> > - "CTRL: MAC_RAND_SCAN cannot allow multicast
> > address");
> > - return -1;
> > - }
> > -
> > - if (type & MAC_ADDR_RAND_SCAN) {
> > - if (wpas_mac_addr_rand_scan_set(wpa_s,
> > MAC_ADDR_RAND_SCAN,
> > - addr, mask))
> > - return -1;
> > - }
> > -
> > - if (type & MAC_ADDR_RAND_SCHED_SCAN) {
> > - if (wpas_mac_addr_rand_scan_set(wpa_s,
> > MAC_ADDR_RAND_SCHED_SCAN,
> > - addr, mask))
> > - return -1;
> > -
> > - if (wpa_s->sched_scanning && !wpa_s->pno)
> > - wpas_scan_restart_sched_scan(wpa_s);
> > - }
> > -
> > - if (type & MAC_ADDR_RAND_PNO) {
> > - if (wpas_mac_addr_rand_scan_set(wpa_s,
> > MAC_ADDR_RAND_PNO,
> > - addr, mask))
> > - return -1;
> > -
> > - if (wpa_s->pno) {
> > - wpas_stop_pno(wpa_s);
> > - wpas_start_pno(wpa_s);
> > - }
> > - }
> > -
> > - return 0;
> > + return wpas_enable_mac_addr_randomization(wpa_s, type, addr,
> > mask);
> > }
> >
> >
> > diff --git a/wpa_supplicant/dbus/dbus_new.c
> > b/wpa_supplicant/dbus/dbus_new.c
> > index fc2fc2ef1..c5d3b8a02 100644
> > --- a/wpa_supplicant/dbus/dbus_new.c
> > +++ b/wpa_supplicant/dbus/dbus_new.c
> > @@ -3803,6 +3803,11 @@ static const struct wpa_dbus_property_desc
> > wpas_dbus_interface_properties[] = {
> > NULL,
> > NULL
> > },
> > + { "MACAddressRandomizationMask", WPAS_DBUS_NEW_IFACE_INTERFACE,
> > "a{say}",
> > + wpas_dbus_getter_mac_address_randomization_mask,
> > + wpas_dbus_setter_mac_address_randomization_mask,
> > + NULL
> > + },
> > { NULL, NULL, NULL, NULL, NULL, NULL }
> > };
> >
> > diff --git a/wpa_supplicant/dbus/dbus_new_handlers.c
> > b/wpa_supplicant/dbus/dbus_new_handlers.c
> > index 6c36d91a0..764675caa 100644
> > --- a/wpa_supplicant/dbus/dbus_new_handlers.c
> > +++ b/wpa_supplicant/dbus/dbus_new_handlers.c
> > @@ -3989,6 +3989,159 @@ out:
> > }
> >
> >
> > +/**
> > + * wpas_dbus_setter_mac_address_randomization_mask - Set masks used
> > for
> > + * MAC address randomization
> > + * @iter: Pointer to incoming dbus message iter
> > + * @error: Location to store error on failure
> > + * @user_data: Function specific data
> > + * Returns: TRUE on success, FALSE on failure
> > + *
> > + * Setter for "MACAddressRandomizationMask" property.
> > + */
> > +dbus_bool_t wpas_dbus_setter_mac_address_randomization_mask(
> > + const struct wpa_dbus_property_desc *property_desc,
> > + DBusMessageIter *iter, DBusError *error, void *user_data)
> > +{
> > + struct wpa_supplicant *wpa_s = user_data;
> > + DBusMessageIter variant_iter, dict_iter, entry_iter,
> > array_iter;
> > + const char *key;
> > + unsigned int rand_type = 0;
> > + const u8 *mask;
> > + int mask_len;
> > + unsigned int rand_types_to_disable = MAC_ADDR_RAND_ALL;
> > +
> > + dbus_message_iter_recurse(iter, &variant_iter);
> > + dbus_message_iter_recurse(&variant_iter, &dict_iter);
> > + while (dbus_message_iter_get_arg_type(&dict_iter) ==
> > + DBUS_TYPE_DICT_ENTRY) {
> > + dbus_message_iter_recurse(&dict_iter, &entry_iter);
> > + if (dbus_message_iter_get_arg_type(&entry_iter) !=
> > DBUS_TYPE_STRING) {
> > + dbus_set_error(error, DBUS_ERROR_FAILED,
> > + "%s: key not a string",
> > __func__);
> > + return FALSE;
> > + }
> > + dbus_message_iter_get_basic(&entry_iter, &key);
> > + dbus_message_iter_next(&entry_iter);
> > + if (dbus_message_iter_get_arg_type(&entry_iter) !=
> > DBUS_TYPE_ARRAY ||
> > + dbus_message_iter_get_element_type(&entry_iter) !=
> > DBUS_TYPE_BYTE) {
> > + dbus_set_error(error, DBUS_ERROR_FAILED,
> > + "%s: mask was not a byte array",
> > __func__);
> > + return FALSE;
> > + }
> > + dbus_message_iter_recurse(&entry_iter, &array_iter);
> > + dbus_message_iter_get_fixed_array(&array_iter, &mask,
> > &mask_len);
> > +
> > + if (os_strcmp(key, "scan") == 0) {
> > + rand_type = MAC_ADDR_RAND_SCAN;
> > + } else if (os_strcmp(key, "sched_scan") == 0) {
> > + rand_type = MAC_ADDR_RAND_SCHED_SCAN;
> > + } else if (os_strcmp(key, "pno") == 0) {
> > + rand_type = MAC_ADDR_RAND_PNO;
> > + } else {
> > + dbus_set_error(error, DBUS_ERROR_FAILED,
> > + "%s: bad scan type \"%s\"",
> > __func__, key);
> > + return FALSE;
> > + }
> > +
> > + if (mask_len != ETH_ALEN) {
> > + dbus_set_error(error, DBUS_ERROR_FAILED,
> > + "%s: malformed MAC mask given",
> > __func__);
> > + return FALSE;
> > + }
> > +
> > + if (wpas_enable_mac_addr_randomization(
> > + wpa_s, rand_type, wpa_s->perm_addr, mask)) {
> > + dbus_set_error(error, DBUS_ERROR_FAILED,
> > + "%s: failed to set up MAC
> > address randomization for %s",
> > + __func__, key);
> > + return FALSE;
> > + }
> > +
> > + wpa_printf(MSG_DEBUG, "%s: Enabled MAC address
> > randomization for %s with mask: "
> > + MACSTR, wpa_s->ifname, key, MAC2STR(mask));
> > + rand_types_to_disable &= ~rand_type;
> > + dbus_message_iter_next(&dict_iter);
> > + }
> > +
> > + if (rand_types_to_disable &&
> > + wpas_disable_mac_addr_randomization(wpa_s,
> > rand_types_to_disable)) {
> > + dbus_set_error(error, DBUS_ERROR_FAILED,
> > + "%s: failed to disable MAC address
> > randomization",
> > + __func__);
> > + return FALSE;
> > + }
> > +
> > + return TRUE;
> > +}
> > +
> > +
> > +dbus_bool_t wpas_dbus_getter_mac_address_randomization_mask(
> > + const struct wpa_dbus_property_desc *property_desc,
> > + DBusMessageIter *iter, DBusError *error, void *user_data)
> > +{
> > + struct wpa_supplicant *wpa_s = user_data;
> > + DBusMessageIter variant_iter, dict_iter, entry_iter,
> > array_iter;
> > + int i;
> > + u8 mask_buf[ETH_ALEN];
> > + /* Read docs on dbus_message_iter_append_fixed_array for why
> > this
> > + * is necessary... */
> > + u8* mask = mask_buf;
> > + static const struct {
> > + const char *key;
> > + unsigned int type;
> > + } types[] = {
> > + { "scan", MAC_ADDR_RAND_SCAN },
> > + { "sched_scan", MAC_ADDR_RAND_SCHED_SCAN },
> > + { "pno", MAC_ADDR_RAND_PNO }
> > + };
> > +
> > + if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
> > + "a{say}", &variant_iter)
> > ||
> > + !dbus_message_iter_open_container(&variant_iter,
> > DBUS_TYPE_ARRAY,
> > + "{say}", &dict_iter)) {
> > + dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no
> > memory");
> > + return FALSE;
> > + }
> > +
> > + for (i = 0; i < sizeof(types)/sizeof(types[0]); i++) {
> > + if (wpas_mac_addr_rand_scan_get_mask(wpa_s,
> > types[i].type, mask))
> > + continue;
> > +
> > + if (!dbus_message_iter_open_container(&dict_iter,
> > + DBUS_TYPE_DICT_EN
> > TRY,
> > + NULL,
> > &entry_iter) ||
> > + !dbus_message_iter_append_basic(&entry_iter,
> > + DBUS_TYPE_STRING,
> > + &types[i].key) ||
> > + !dbus_message_iter_open_container(&entry_iter,
> > + DBUS_TYPE_ARRAY,
> > + DBUS_TYPE_BYTE_AS
> > _STRING,
> > + &array_iter) ||
> > + !dbus_message_iter_append_fixed_array(&array_iter,
> > + DBUS_TYPE_BYT
> > E,
> > + &mask,
> > + ETH_ALEN) ||
> > + !dbus_message_iter_close_container(&entry_iter,
> > + &array_iter) ||
> > + !dbus_message_iter_close_container(&dict_iter,
> > + &entry_iter)) {
> > + dbus_set_error_const(error,
> > DBUS_ERROR_NO_MEMORY,
> > + "no memory");
> > + return FALSE;
> > + }
> > + }
> > +
> > + if (!dbus_message_iter_close_container(&variant_iter,
> > &dict_iter) ||
> > + !dbus_message_iter_close_container(iter, &variant_iter)) {
> > + dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no
> > memory");
> > + return FALSE;
> > + }
> > +
> > + return TRUE;
> > +}
> > +
> > +
> > /**
> > * wpas_dbus_getter_sta_address - Return the address of a connected
> > station
> > * @iter: Pointer to incoming dbus message iter
> > diff --git a/wpa_supplicant/dbus/dbus_new_handlers.h
> > b/wpa_supplicant/dbus/dbus_new_handlers.h
> > index d922ce1b4..afa26efed 100644
> > --- a/wpa_supplicant/dbus/dbus_new_handlers.h
> > +++ b/wpa_supplicant/dbus/dbus_new_handlers.h
> > @@ -177,6 +177,8 @@
> > DECLARE_ACCESSOR(wpas_dbus_getter_pkcs11_engine_path);
> > DECLARE_ACCESSOR(wpas_dbus_getter_pkcs11_module_path);
> > DECLARE_ACCESSOR(wpas_dbus_getter_blobs);
> > DECLARE_ACCESSOR(wpas_dbus_getter_stas);
> > +DECLARE_ACCESSOR(wpas_dbus_getter_mac_address_randomization_mask);
> > +DECLARE_ACCESSOR(wpas_dbus_setter_mac_address_randomization_mask);
> > DECLARE_ACCESSOR(wpas_dbus_getter_sta_address);
> > DECLARE_ACCESSOR(wpas_dbus_getter_sta_aid);
> > DECLARE_ACCESSOR(wpas_dbus_getter_sta_caps);
> > diff --git a/wpa_supplicant/scan.c b/wpa_supplicant/scan.c
> > index 7abb028dd..251e0642e 100644
> > --- a/wpa_supplicant/scan.c
> > +++ b/wpa_supplicant/scan.c
> > @@ -79,6 +79,27 @@ static int wpas_wps_in_use(struct wpa_supplicant
> > *wpa_s,
> > #endif /* CONFIG_WPS */
> >
> >
> > +static int wpa_setup_mac_addr_rand_params(struct
> > wpa_driver_scan_params *params,
> > + const u8 *mac_addr)
> > +{
> > + u8 *tmp;
> > +
> > + if (!mac_addr)
> > + return 0;
> > +
> > + params->mac_addr_rand = 1;
> > +
> > + tmp = os_malloc(2 * ETH_ALEN);
> > + if (!tmp)
> > + return -1;
> > +
> > + os_memcpy(tmp, mac_addr, 2 * ETH_ALEN);
> > + params->mac_addr = tmp;
> > + params->mac_addr_mask = tmp + ETH_ALEN;
> > + return 0;
> > +}
> > +
> > +
> > /**
> > * wpa_supplicant_enabled_networks - Check whether there are enabled
> > networks
> > * @wpa_s: Pointer to wpa_supplicant data
> > @@ -169,7 +190,9 @@ static void wpas_trigger_scan_cb(struct
> > wpa_radio_work *work, int deinit)
> > return;
> > }
> >
> > - if (wpas_update_random_addr_disassoc(wpa_s) < 0) {
> > + if (wpa_s->mac_addr_rand_enable & MAC_ADDR_RAND_SCAN)
> > + wpa_setup_mac_addr_rand_params(params, wpa_s-
> > >mac_addr_scan);
> > + else if (wpas_update_random_addr_disassoc(wpa_s) < 0) {
> > wpa_msg(wpa_s, MSG_INFO,
> > "Failed to assign random MAC address for a
> > scan");
> > wpa_scan_free_params(params);
> > @@ -1212,11 +1235,7 @@ ssid_list_set:
> >
> > if ((wpa_s->mac_addr_rand_enable & MAC_ADDR_RAND_SCAN) &&
> > wpa_s->wpa_state <= WPA_SCANNING) {
> > - params.mac_addr_rand = 1;
> > - if (wpa_s->mac_addr_scan) {
> > - params.mac_addr = wpa_s->mac_addr_scan;
> > - params.mac_addr_mask = wpa_s->mac_addr_scan +
> > ETH_ALEN;
> > - }
> > + wpa_setup_mac_addr_rand_params(¶ms, wpa_s-
> > >mac_addr_scan);
> > }
> >
> > if (!is_zero_ether_addr(wpa_s->next_scan_bssid)) {
> > @@ -1665,12 +1684,7 @@ scan:
> >
> > if ((wpa_s->mac_addr_rand_enable & MAC_ADDR_RAND_SCHED_SCAN) &&
> > wpa_s->wpa_state <= WPA_SCANNING) {
> > - params.mac_addr_rand = 1;
> > - if (wpa_s->mac_addr_sched_scan) {
> > - params.mac_addr = wpa_s->mac_addr_sched_scan;
> > - params.mac_addr_mask = wpa_s-
> > >mac_addr_sched_scan +
> > - ETH_ALEN;
> > - }
> > + wpa_setup_mac_addr_rand_params(¶ms, wpa_s-
> > >mac_addr_sched_scan);
> > }
> >
> > wpa_scan_set_relative_rssi_params(wpa_s, scan_params);
> > @@ -2535,23 +2549,9 @@ wpa_scan_clone_params(const struct
> > wpa_driver_scan_params *src)
> > params->sched_scan_plans_num = src-
> > >sched_scan_plans_num;
> > }
> >
> > - if (src->mac_addr_rand) {
> > - params->mac_addr_rand = src->mac_addr_rand;
> > -
> > - if (src->mac_addr && src->mac_addr_mask) {
> > - u8 *mac_addr;
> > -
> > - mac_addr = os_malloc(2 * ETH_ALEN);
> > - if (!mac_addr)
> > - goto failed;
> > -
> > - os_memcpy(mac_addr, src->mac_addr, ETH_ALEN);
> > - os_memcpy(mac_addr + ETH_ALEN, src-
> > >mac_addr_mask,
> > - ETH_ALEN);
> > - params->mac_addr = mac_addr;
> > - params->mac_addr_mask = mac_addr + ETH_ALEN;
> > - }
> > - }
> > + if (src->mac_addr_rand &&
> > + wpa_setup_mac_addr_rand_params(params, (const u8 *)src-
> > >mac_addr))
> > + goto failed;
> >
> > if (src->bssid) {
> > u8 *bssid;
> > @@ -2739,11 +2739,7 @@ int wpas_start_pno(struct wpa_supplicant
> > *wpa_s)
> >
> > if ((wpa_s->mac_addr_rand_enable & MAC_ADDR_RAND_PNO) &&
> > wpa_s->wpa_state <= WPA_SCANNING) {
> > - params.mac_addr_rand = 1;
> > - if (wpa_s->mac_addr_pno) {
> > - params.mac_addr = wpa_s->mac_addr_pno;
> > - params.mac_addr_mask = wpa_s->mac_addr_pno +
> > ETH_ALEN;
> > - }
> > + wpa_setup_mac_addr_rand_params(¶ms, wpa_s-
> > >mac_addr_pno);
> > }
> >
> > wpa_scan_set_relative_rssi_params(wpa_s, ¶ms);
> > @@ -2843,6 +2839,32 @@ int wpas_mac_addr_rand_scan_set(struct
> > wpa_supplicant *wpa_s,
> > }
> >
> >
> > +int wpas_mac_addr_rand_scan_get_mask(struct wpa_supplicant *wpa_s,
> > + unsigned int type, u8 *mask)
> > +{
> > + u8 *to_copy = NULL;
> > +
> > + if ((wpa_s->mac_addr_rand_enable & type) != type)
> > + return -1;
> > +
> > + if (type == MAC_ADDR_RAND_SCAN) {
> > + to_copy = wpa_s->mac_addr_scan;
> > + } else if (type == MAC_ADDR_RAND_SCHED_SCAN) {
> > + to_copy = wpa_s->mac_addr_sched_scan;
> > + } else if (type == MAC_ADDR_RAND_PNO) {
> > + to_copy = wpa_s->mac_addr_pno;
> > + } else {
> > + wpa_printf(MSG_DEBUG,
> > + "scan: Invalid MAC randomization type=0x%x",
> > + type);
> > + return -1;
> > + }
> > +
> > + os_memcpy(mask, to_copy + ETH_ALEN, ETH_ALEN);
> > + return 0;
> > +}
> > +
> > +
> > int wpas_abort_ongoing_scan(struct wpa_supplicant *wpa_s)
> > {
> > struct wpa_radio_work *work;
> > diff --git a/wpa_supplicant/scan.h b/wpa_supplicant/scan.h
> > index 2aa0a8be0..58caa7818 100644
> > --- a/wpa_supplicant/scan.h
> > +++ b/wpa_supplicant/scan.h
> > @@ -52,6 +52,8 @@ void wpas_mac_addr_rand_scan_clear(struct
> > wpa_supplicant *wpa_s,
> > int wpas_mac_addr_rand_scan_set(struct wpa_supplicant *wpa_s,
> > unsigned int type, const u8 *addr,
> > const u8 *mask);
> > +int wpas_mac_addr_rand_scan_get_mask(struct wpa_supplicant *wpa_s,
> > + unsigned int type, u8 *mask);
> > int wpas_abort_ongoing_scan(struct wpa_supplicant *wpa_s);
> > void filter_scan_res(struct wpa_supplicant *wpa_s,
> > struct wpa_scan_results *res);
> > diff --git a/wpa_supplicant/wpa_supplicant.c
> > b/wpa_supplicant/wpa_supplicant.c
> > index f82d18fe2..9d1e88bdd 100644
> > --- a/wpa_supplicant/wpa_supplicant.c
> > +++ b/wpa_supplicant/wpa_supplicant.c
> > @@ -7477,3 +7477,60 @@ int wpa_is_bss_tmp_disallowed(struct
> > wpa_supplicant *wpa_s,
> >
> > return 1;
> > }
> > +
> > +int wpas_enable_mac_addr_randomization(struct wpa_supplicant *wpa_s,
> > + int type, const u8 *addr,
> > + const u8 *mask)
> > +{
> > + if ((addr && !mask) || (!addr && mask)) {
> > + wpa_printf(MSG_INFO,
> > + "MAC_ADDR_RAND_SCAN invalid addr/mask
> > combination");
> > + return -1;
> > + }
> > +
> > + if (addr && mask && (!(mask[0] & 0x01) || (addr[0] & 0x01))) {
> > + wpa_printf(MSG_INFO,
> > + "MAC_ADDR_RAND_SCAN cannot allow multicast
> > address");
> > + return -1;
> > + }
> > +
> > + if (type & MAC_ADDR_RAND_SCAN) {
> > + wpas_mac_addr_rand_scan_set(wpa_s, MAC_ADDR_RAND_SCAN,
> > + addr, mask);
> > + }
> > +
> > + if (type & MAC_ADDR_RAND_SCHED_SCAN) {
> > + wpas_mac_addr_rand_scan_set(wpa_s,
> > MAC_ADDR_RAND_SCHED_SCAN,
> > + addr, mask);
> > +
> > + if (wpa_s->sched_scanning && !wpa_s->pno)
> > + wpas_scan_restart_sched_scan(wpa_s);
> > + }
> > +
> > + if (type & MAC_ADDR_RAND_PNO) {
> > + wpas_mac_addr_rand_scan_set(wpa_s, MAC_ADDR_RAND_PNO,
> > + addr, mask);
> > + if (wpa_s->pno) {
> > + wpas_stop_pno(wpa_s);
> > + wpas_start_pno(wpa_s);
> > + }
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +
> > +int wpas_disable_mac_addr_randomization(struct wpa_supplicant
> > *wpa_s, int type)
> > +{
> > + wpas_mac_addr_rand_scan_clear(wpa_s, type);
> > + if (wpa_s->pno) {
> > + if (type & MAC_ADDR_RAND_PNO) {
> > + wpas_stop_pno(wpa_s);
> > + wpas_start_pno(wpa_s);
> > + }
> > + } else if (wpa_s->sched_scanning && (type &
> > MAC_ADDR_RAND_SCHED_SCAN)) {
> > + wpas_scan_restart_sched_scan(wpa_s);
> > + }
> > +
> > + return 0;
> > +}
> > diff --git a/wpa_supplicant/wpa_supplicant_i.h
> > b/wpa_supplicant/wpa_supplicant_i.h
> > index b51390ba3..796d83475 100644
> > --- a/wpa_supplicant/wpa_supplicant_i.h
> > +++ b/wpa_supplicant/wpa_supplicant_i.h
> > @@ -1417,6 +1417,11 @@ size_t wpas_supp_op_class_ie(struct
> > wpa_supplicant *wpa_s,
> > struct wpa_ssid *ssid,
> > int freq, u8 *pos, size_t len);
> >
> > +int wpas_enable_mac_addr_randomization(struct wpa_supplicant *wpa_s,
> > + int type, const u8 *addr,
> > + const u8 *mask);
> > +int wpas_disable_mac_addr_randomization(struct wpa_supplicant
> > *wpa_s, int type);
> > +
> > /**
> > * wpa_supplicant_ctrl_iface_ctrl_rsp_handle - Handle a control
> > response
> > * @wpa_s: Pointer to wpa_supplicant data
>
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