diff options
Diffstat (limited to 'package/network/services/hostapd/patches/551-wpa_supplicant-Add-Multi-AP-protocol-support-to-supp.patch')
-rw-r--r-- | package/network/services/hostapd/patches/551-wpa_supplicant-Add-Multi-AP-protocol-support-to-supp.patch | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/package/network/services/hostapd/patches/551-wpa_supplicant-Add-Multi-AP-protocol-support-to-supp.patch b/package/network/services/hostapd/patches/551-wpa_supplicant-Add-Multi-AP-protocol-support-to-supp.patch new file mode 100644 index 0000000000..5fc41c20e6 --- /dev/null +++ b/package/network/services/hostapd/patches/551-wpa_supplicant-Add-Multi-AP-protocol-support-to-supp.patch @@ -0,0 +1,311 @@ +From 5abc7823bd01f69b8afbe1fd19f65fff86137c44 Mon Sep 17 00:00:00 2001 +From: Venkateswara Naralasetty <vnaralas@codeaurora.org> +Date: Wed, 5 Dec 2018 11:23:53 +0100 +Subject: [PATCH] wpa_supplicant: Add Multi-AP backhaul STA support + +Advertise vendor specific Multi-AP IE in (Re)Association Request frames +and process Multi-AP IE from (Re)Association Response frames if the user +enables Multi-AP fuctionality. If the (Re)Association Response frame +does not contain the Multi-AP IE, disassociate. + +This adds a new configuration parameter 'multi_ap_backhaul_sta' to +enable/disable Multi-AP functionality. + +Enable 4-address mode after association (if the Association Response +frame contains the Multi-AP IE). Also enable the bridge in that case. +This is necessary because wpa_supplicant only enables the bridge in +wpa_drv_if_add(), which only gets called when an interface is added +through the control interface, not when it is configured from the +command line. + +Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org> +Signed-off-by: Jouni Malinen <jouni@codeaurora.org> +Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> +--- + src/drivers/driver.h | 9 ++++++ + src/drivers/driver_nl80211.c | 44 ++++++++++++++++++++++++++ + wpa_supplicant/config.c | 1 + + wpa_supplicant/config_ssid.h | 7 +++++ + wpa_supplicant/driver_i.h | 8 +++++ + wpa_supplicant/events.c | 50 ++++++++++++++++++++++++++++++ + wpa_supplicant/sme.c | 16 ++++++++++ + wpa_supplicant/wpa_supplicant.c | 18 +++++++++++ + wpa_supplicant/wpa_supplicant.conf | 7 +++++ + wpa_supplicant/wpa_supplicant_i.h | 1 + + 10 files changed, 161 insertions(+) + +--- a/src/drivers/driver.h ++++ b/src/drivers/driver.h +@@ -4100,6 +4100,15 @@ struct wpa_driver_ops { + */ + int (*send_external_auth_status)(void *priv, + struct external_auth *params); ++ ++ /** ++ * set_4addr_mode - Set 4-address mode ++ * @priv: Private driver interface data ++ * @bridge_ifname: Bridge interface name ++ * @val: 0 - disable 4addr mode, 1 - enable 4addr mode ++ * Returns: 0 on success, < 0 on failure ++ */ ++ int (*set_4addr_mode)(void *priv, const char *bridge_ifname, int val); + }; + + /** +--- a/src/drivers/driver_nl80211.c ++++ b/src/drivers/driver_nl80211.c +@@ -10728,6 +10728,49 @@ fail: + } + + ++static int nl80211_set_4addr_mode(void *priv, const char *bridge_ifname, ++ int val) ++{ ++ struct i802_bss *bss = priv; ++ struct wpa_driver_nl80211_data *drv = bss->drv; ++ struct nl_msg *msg; ++ int ret = -ENOBUFS; ++ ++ wpa_printf(MSG_DEBUG, "nl80211: %s 4addr mode (bridge_ifname: %s)", ++ val ? "Enable" : "Disable", bridge_ifname); ++ ++ msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_SET_INTERFACE); ++ if (!msg || nla_put_u8(msg, NL80211_ATTR_4ADDR, val)) ++ goto fail; ++ ++ if (bridge_ifname[0] && bss->added_if_into_bridge && !val) { ++ if (linux_br_del_if(drv->global->ioctl_sock, ++ bridge_ifname, bss->ifname)) { ++ wpa_printf(MSG_ERROR, ++ "nl80211: Failed to remove interface %s from bridge %s", ++ bss->ifname, bridge_ifname); ++ return -1; ++ } ++ bss->added_if_into_bridge = 0; ++ } ++ ++ ret = send_and_recv_msgs(drv, msg, NULL, NULL); ++ msg = NULL; ++ if (!ret) { ++ if (bridge_ifname[0] && val && ++ i802_check_bridge(drv, bss, bridge_ifname, bss->ifname) < 0) ++ return -1; ++ return 0; ++ } ++ ++fail: ++ nlmsg_free(msg); ++ wpa_printf(MSG_ERROR, "nl80211: Failed to enable/disable 4addr"); ++ ++ return ret; ++} ++ ++ + const struct wpa_driver_ops wpa_driver_nl80211_ops = { + .name = "nl80211", + .desc = "Linux nl80211/cfg80211", +@@ -10856,4 +10899,5 @@ const struct wpa_driver_ops wpa_driver_n + .get_ext_capab = nl80211_get_ext_capab, + .update_connect_params = nl80211_update_connection_params, + .send_external_auth_status = nl80211_send_external_auth_status, ++ .set_4addr_mode = nl80211_set_4addr_mode, + }; +--- a/wpa_supplicant/config.c ++++ b/wpa_supplicant/config.c +@@ -2416,6 +2416,7 @@ static const struct parse_data ssid_fiel + #endif /* CONFIG_DPP */ + { INT_RANGE(owe_group, 0, 65535) }, + { INT_RANGE(owe_only, 0, 1) }, ++ { INT_RANGE(multi_ap_backhaul_sta, 0, 1) }, + }; + + #undef OFFSET +--- a/wpa_supplicant/config_ssid.h ++++ b/wpa_supplicant/config_ssid.h +@@ -950,6 +950,13 @@ struct wpa_ssid { + * the selection attempts for OWE BSS exceed the configured threshold. + */ + int owe_transition_bss_select_count; ++ ++ /** ++ * multi_ap_backhaul_sta - Multi-AP backhaul STA ++ * 0 = normal (non-Multi-AP) station ++ * 1 = Multi-AP backhaul station ++ */ ++ int multi_ap_backhaul_sta; + }; + + #endif /* CONFIG_SSID_H */ +--- a/wpa_supplicant/driver_i.h ++++ b/wpa_supplicant/driver_i.h +@@ -1046,4 +1046,12 @@ wpa_drv_send_external_auth_status(struct + params); + } + ++static inline int wpa_drv_set_4addr_mode(struct wpa_supplicant *wpa_s, int val) ++{ ++ if (!wpa_s->driver->set_4addr_mode) ++ return -1; ++ return wpa_s->driver->set_4addr_mode(wpa_s->drv_priv, ++ wpa_s->bridge_ifname, val); ++} ++ + #endif /* DRIVER_I_H */ +--- a/wpa_supplicant/events.c ++++ b/wpa_supplicant/events.c +@@ -324,6 +324,9 @@ void wpa_supplicant_mark_disassoc(struct + os_memset(wpa_s->last_tk, 0, sizeof(wpa_s->last_tk)); + #endif /* CONFIG_TESTING_OPTIONS */ + wpa_s->ieee80211ac = 0; ++ ++ if (wpa_s->enabled_4addr_mode && wpa_drv_set_4addr_mode(wpa_s, 0) == 0) ++ wpa_s->enabled_4addr_mode = 0; + } + + +@@ -2267,6 +2270,50 @@ static void interworking_process_assoc_r + #endif /* CONFIG_INTERWORKING */ + + ++static void multi_ap_process_assoc_resp(struct wpa_supplicant *wpa_s, ++ const u8 *ies, size_t ies_len) ++{ ++ struct ieee802_11_elems elems; ++ const u8 *map_sub_elem, *pos; ++ size_t len; ++ ++ if (!wpa_s->current_ssid || ++ !wpa_s->current_ssid->multi_ap_backhaul_sta || ++ !ies || ++ ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) ++ return; ++ ++ if (!elems.multi_ap || elems.multi_ap_len < 7) { ++ wpa_printf(MSG_INFO, "AP doesn't support Multi-AP protocol"); ++ goto fail; ++ } ++ ++ pos = elems.multi_ap + 4; ++ len = elems.multi_ap_len - 4; ++ ++ map_sub_elem = get_ie(pos, len, MULTI_AP_SUB_ELEM_TYPE); ++ if (!map_sub_elem || map_sub_elem[1] < 1) { ++ wpa_printf(MSG_INFO, "invalid Multi-AP sub elem type"); ++ goto fail; ++ } ++ ++ if (!(map_sub_elem[2] & MULTI_AP_BACKHAUL_BSS)) { ++ wpa_printf(MSG_INFO, "AP doesn't support backhaul BSS"); ++ goto fail; ++ } ++ ++ if (wpa_drv_set_4addr_mode(wpa_s, 1) < 0) { ++ wpa_printf(MSG_ERROR, "Failed to set 4addr mode"); ++ goto fail; ++ } ++ wpa_s->enabled_4addr_mode = 1; ++ return; ++ ++fail: ++ wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); ++} ++ ++ + #ifdef CONFIG_FST + static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s, + const u8 *ie, size_t ie_len) +@@ -2343,6 +2390,9 @@ static int wpa_supplicant_event_associnf + get_ie(data->assoc_info.resp_ies, + data->assoc_info.resp_ies_len, WLAN_EID_VHT_CAP)) + wpa_s->ieee80211ac = 1; ++ ++ multi_ap_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, ++ data->assoc_info.resp_ies_len); + } + if (data->assoc_info.beacon_ies) + wpa_hexdump(MSG_DEBUG, "beacon_ies", +--- a/wpa_supplicant/sme.c ++++ b/wpa_supplicant/sme.c +@@ -1552,6 +1552,22 @@ void sme_associate(struct wpa_supplicant + } + #endif /* CONFIG_OWE */ + ++ if (wpa_s->current_ssid && wpa_s->current_ssid->multi_ap_backhaul_sta) { ++ size_t multi_ap_ie_len; ++ ++ multi_ap_ie_len = add_multi_ap_ie( ++ wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len, ++ sizeof(wpa_s->sme.assoc_req_ie) - ++ wpa_s->sme.assoc_req_ie_len, ++ MULTI_AP_BACKHAUL_STA); ++ if (multi_ap_ie_len == 0) { ++ wpa_printf(MSG_ERROR, ++ "Multi-AP: Failed to build Multi-AP IE"); ++ return; ++ } ++ wpa_s->sme.assoc_req_ie_len += multi_ap_ie_len; ++ } ++ + params.bssid = bssid; + params.ssid = wpa_s->sme.ssid; + params.ssid_len = wpa_s->sme.ssid_len; +--- a/wpa_supplicant/wpa_supplicant.c ++++ b/wpa_supplicant/wpa_supplicant.c +@@ -2893,6 +2893,21 @@ static u8 * wpas_populate_assoc_ies( + } + #endif /* CONFIG_IEEE80211R */ + ++ if (ssid->multi_ap_backhaul_sta) { ++ size_t multi_ap_ie_len; ++ ++ multi_ap_ie_len = add_multi_ap_ie(wpa_ie + wpa_ie_len, ++ max_wpa_ie_len - wpa_ie_len, ++ MULTI_AP_BACKHAUL_STA); ++ if (multi_ap_ie_len == 0) { ++ wpa_printf(MSG_ERROR, ++ "Multi-AP: Failed to build Multi-AP IE"); ++ os_free(wpa_ie); ++ return NULL; ++ } ++ wpa_ie_len += multi_ap_ie_len; ++ } ++ + params->wpa_ie = wpa_ie; + params->wpa_ie_len = wpa_ie_len; + params->auth_alg = algs; +@@ -3377,6 +3392,9 @@ void wpa_supplicant_deauthenticate(struc + zero_addr = 1; + } + ++ if (wpa_s->enabled_4addr_mode && wpa_drv_set_4addr_mode(wpa_s, 0) == 0) ++ wpa_s->enabled_4addr_mode = 0; ++ + #ifdef CONFIG_TDLS + wpa_tdls_teardown_peers(wpa_s->wpa); + #endif /* CONFIG_TDLS */ +--- a/wpa_supplicant/wpa_supplicant.conf ++++ b/wpa_supplicant/wpa_supplicant.conf +@@ -1399,6 +1399,13 @@ fast_reauth=1 + # 2: MCS 0-9 + # 3: not supported + ++# multi_ap_backhaul_sta: Multi-AP backhaul STA functionality ++# 0 = normal STA (default) ++# 1 = backhaul STA ++# A backhaul STA sends the Multi-AP IE, fails to associate if the AP does not ++# support Multi-AP, and sets 4-address mode if it does. Thus, the netdev can be ++# added to a bridge to allow forwarding frames over this backhaul link. ++ + ##### Fast Session Transfer (FST) support ##################################### + # + # The options in this section are only available when the build configuration +--- a/wpa_supplicant/wpa_supplicant_i.h ++++ b/wpa_supplicant/wpa_supplicant_i.h +@@ -1242,6 +1242,7 @@ struct wpa_supplicant { + unsigned int disable_fils:1; + #endif /* CONFIG_FILS */ + unsigned int ieee80211ac:1; ++ unsigned int enabled_4addr_mode:1; + }; + + |