diff options
Diffstat (limited to 'package/network/services/hostapd/patches/550-hostapd-Add-Multi-AP-protocol-support.patch')
| -rw-r--r-- | package/network/services/hostapd/patches/550-hostapd-Add-Multi-AP-protocol-support.patch | 306 |
1 files changed, 306 insertions, 0 deletions
diff --git a/package/network/services/hostapd/patches/550-hostapd-Add-Multi-AP-protocol-support.patch b/package/network/services/hostapd/patches/550-hostapd-Add-Multi-AP-protocol-support.patch new file mode 100644 index 0000000000..812f794eda --- /dev/null +++ b/package/network/services/hostapd/patches/550-hostapd-Add-Multi-AP-protocol-support.patch @@ -0,0 +1,306 @@ +From 9c06f0f6aed26c1628acaa74df0232dd7b345e9a Mon Sep 17 00:00:00 2001 +From: Venkateswara Naralasetty <vnaralas@codeaurora.org> +Date: Wed, 5 Dec 2018 11:23:51 +0100 +Subject: [PATCH] hostapd: Add Multi-AP protocol support + +The purpose of Multi-AP specification is to enable inter-operability +across Wi-Fi access points (APs) from different vendors. + +This patch introduces one new configuration parameter 'multi_ap' to +enable Multi-AP functionality and to configure the BSS as a backhaul +and/or fronthaul BSS. + +Advertise vendor specific Multi-AP capabilities in (Re)Association +Response frame, if Multi-AP functionality is enabled through the +configuration parameter. + +A backhaul AP must support receiving both 3addr and 4addr frames from a +backhaul STA, so create a VLAN for it just like is done for WDS, i.e., +by calling hostapd_set_wds_sta(). Since Multi-AP requires WPA2 (never +WEP), we can safely call hostapd_set_wds_encryption() as well and we can +reuse the entire WDS condition. + +To parse the Multi-AP Extension subelement, we use get_ie(): even though +that function is meant for parsing IEs, it works for subelements. + +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> +--- + hostapd/config_file.c | 10 +++++ + hostapd/hostapd.conf | 7 ++++ + src/ap/ap_config.h | 4 ++ + src/ap/ieee802_11.c | 77 +++++++++++++++++++++++++++++++++- + src/ap/sta_info.c | 2 +- + src/ap/sta_info.h | 1 + + src/common/ieee802_11_common.c | 24 +++++++++++ + src/common/ieee802_11_common.h | 4 ++ + src/common/ieee802_11_defs.h | 7 ++++ + 9 files changed, 134 insertions(+), 2 deletions(-) + +--- a/hostapd/config_file.c ++++ b/hostapd/config_file.c +@@ -4115,6 +4115,16 @@ static int hostapd_config_fill(struct ho + } else if (os_strcmp(buf, "coloc_intf_reporting") == 0) { + bss->coloc_intf_reporting = atoi(pos); + #endif /* CONFIG_OWE */ ++ } else if (os_strcmp(buf, "multi_ap") == 0) { ++ int val = atoi(pos); ++ ++ if (val < 0 || val > 3) { ++ wpa_printf(MSG_ERROR, "Line %d: Invalid multi_ap '%s'", ++ line, buf); ++ return -1; ++ } ++ ++ bss->multi_ap = val; + } else { + wpa_printf(MSG_ERROR, + "Line %d: unknown configuration item '%s'", +--- a/hostapd/hostapd.conf ++++ b/hostapd/hostapd.conf +@@ -438,6 +438,13 @@ wmm_ac_vo_txop_limit=47 + wmm_ac_vo_acm=0 + # Note: for IEEE 802.11b mode: cWmin=3 cWmax=4 burst=102 + ++# Enable Multi-AP functionality ++# 0 = disabled (default) ++# 1 = AP support backhaul BSS ++# 2 = AP support fronthaul BSS ++# 3 = AP supports both backhaul BSS and fronthaul BSS ++#multi_ap=0 ++ + # Static WEP key configuration + # + # The key number to use when transmitting. +--- a/src/ap/ap_config.h ++++ b/src/ap/ap_config.h +@@ -688,6 +688,10 @@ struct hostapd_bss_config { + #endif /* CONFIG_OWE */ + + int coloc_intf_reporting; ++ ++#define BACKHAUL_BSS 1 ++#define FRONTHAUL_BSS 2 ++ int multi_ap; /* bitmap of BACKHAUL_BSS, FRONTHAUL_BSS */ + }; + + /** +--- a/src/ap/ieee802_11.c ++++ b/src/ap/ieee802_11.c +@@ -62,6 +62,22 @@ prepare_auth_resp_fils(struct hostapd_da + int *is_pub); + #endif /* CONFIG_FILS */ + ++ ++u8 * hostapd_eid_multi_ap(struct hostapd_data *hapd, u8 *eid) ++{ ++ u8 multi_ap_val = 0; ++ ++ if (!hapd->conf->multi_ap) ++ return eid; ++ if (hapd->conf->multi_ap & BACKHAUL_BSS) ++ multi_ap_val |= MULTI_AP_BACKHAUL_BSS; ++ if (hapd->conf->multi_ap & FRONTHAUL_BSS) ++ multi_ap_val |= MULTI_AP_FRONTHAUL_BSS; ++ ++ return eid + add_multi_ap_ie(eid, 9, multi_ap_val); ++} ++ ++ + u8 * hostapd_eid_supp_rates(struct hostapd_data *hapd, u8 *eid) + { + u8 *pos = eid; +@@ -2210,6 +2226,57 @@ static u16 check_wmm(struct hostapd_data + return WLAN_STATUS_SUCCESS; + } + ++static u16 check_multi_ap(struct hostapd_data *hapd, struct sta_info *sta, ++ const u8 *multi_ap_ie, size_t multi_ap_len) ++{ ++ u8 multi_ap_value = 0; ++ ++ sta->flags &= ~WLAN_STA_MULTI_AP; ++ ++ if (!hapd->conf->multi_ap) ++ return WLAN_STATUS_SUCCESS; ++ ++ if (multi_ap_ie) { ++ const u8 *multi_ap_subelem; ++ ++ multi_ap_subelem = get_ie(multi_ap_ie + 4, ++ multi_ap_len - 4, ++ MULTI_AP_SUB_ELEM_TYPE); ++ if (multi_ap_subelem && multi_ap_subelem[1] == 1) { ++ multi_ap_value = multi_ap_subelem[2]; ++ } else { ++ hostapd_logger(hapd, sta->addr, ++ HOSTAPD_MODULE_IEEE80211, ++ HOSTAPD_LEVEL_INFO, ++ "Multi-AP IE has missing or invalid Multi-AP subelement"); ++ return WLAN_STATUS_INVALID_IE; ++ } ++ } ++ ++ if (multi_ap_value == MULTI_AP_BACKHAUL_STA) ++ sta->flags |= WLAN_STA_MULTI_AP; ++ ++ if ((hapd->conf->multi_ap & BACKHAUL_BSS) && ++ multi_ap_value == MULTI_AP_BACKHAUL_STA) ++ return WLAN_STATUS_SUCCESS; ++ ++ if (hapd->conf->multi_ap & FRONTHAUL_BSS) { ++ if (multi_ap_value == MULTI_AP_BACKHAUL_STA) { ++ hostapd_logger(hapd, sta->addr, ++ HOSTAPD_MODULE_IEEE80211, ++ HOSTAPD_LEVEL_INFO, ++ "Backhaul STA tries to associate with fronthaul-only BSS"); ++ return WLAN_STATUS_ASSOC_DENIED_UNSPEC; ++ } ++ return WLAN_STATUS_SUCCESS; ++ } ++ ++ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, ++ HOSTAPD_LEVEL_INFO, ++ "Non-Multi-AP STA tries to associate with backhaul-only BSS"); ++ return WLAN_STATUS_ASSOC_DENIED_UNSPEC; ++} ++ + + static u16 copy_supp_rates(struct hostapd_data *hapd, struct sta_info *sta, + struct ieee802_11_elems *elems) +@@ -2466,6 +2533,11 @@ static u16 check_assoc_ies(struct hostap + resp = copy_supp_rates(hapd, sta, &elems); + if (resp != WLAN_STATUS_SUCCESS) + return resp; ++ ++ resp = check_multi_ap(hapd, sta, elems.multi_ap, elems.multi_ap_len); ++ if (resp != WLAN_STATUS_SUCCESS) ++ return resp; ++ + #ifdef CONFIG_IEEE80211N + resp = copy_sta_ht_capab(hapd, sta, elems.ht_capabilities); + if (resp != WLAN_STATUS_SUCCESS) +@@ -2996,6 +3068,9 @@ static u16 send_assoc_resp(struct hostap + } + #endif /* CONFIG_WPS */ + ++ if (sta && (sta->flags & WLAN_STA_MULTI_AP)) ++ p = hostapd_eid_multi_ap(hapd, p); ++ + #ifdef CONFIG_P2P + if (sta && sta->p2p_ie && hapd->p2p_group) { + struct wpabuf *p2p_resp_ie; +@@ -4236,7 +4311,7 @@ static void handle_assoc_cb(struct hosta + sta->flags |= WLAN_STA_WDS; + } + +- if (sta->flags & WLAN_STA_WDS) { ++ if (sta->flags & (WLAN_STA_WDS | WLAN_STA_MULTI_AP)) { + int ret; + char ifname_wds[IFNAMSIZ + 1]; + +--- a/src/ap/sta_info.c ++++ b/src/ap/sta_info.c +@@ -166,7 +166,7 @@ void ap_free_sta(struct hostapd_data *ha + /* just in case */ + ap_sta_set_authorized(hapd, sta, 0); + +- if (sta->flags & WLAN_STA_WDS) ++ if (sta->flags & (WLAN_STA_WDS | WLAN_STA_MULTI_AP)) + hostapd_set_wds_sta(hapd, NULL, sta->addr, sta->aid, 0); + + if (sta->ipaddr) +--- a/src/ap/sta_info.h ++++ b/src/ap/sta_info.h +@@ -36,6 +36,7 @@ + #define WLAN_STA_VHT_OPMODE_ENABLED BIT(20) + #define WLAN_STA_VENDOR_VHT BIT(21) + #define WLAN_STA_PENDING_FILS_ERP BIT(22) ++#define WLAN_STA_MULTI_AP BIT(23) + #define WLAN_STA_PENDING_DISASSOC_CB BIT(29) + #define WLAN_STA_PENDING_DEAUTH_CB BIT(30) + #define WLAN_STA_NONERP BIT(31) +--- a/src/common/ieee802_11_common.c ++++ b/src/common/ieee802_11_common.c +@@ -126,6 +126,10 @@ static int ieee802_11_parse_vendor_speci + elems->roaming_cons_sel = pos; + elems->roaming_cons_sel_len = elen; + break; ++ case MULTI_AP_OUI_TYPE: ++ elems->multi_ap = pos; ++ elems->multi_ap_len = elen; ++ break; + default: + wpa_printf(MSG_MSGDUMP, "Unknown WFA " + "information element ignored " +@@ -1519,6 +1523,26 @@ size_t mbo_add_ie(u8 *buf, size_t len, c + } + + ++size_t add_multi_ap_ie(u8 *buf, size_t len, u8 value) ++{ ++ u8 *pos = buf; ++ ++ if (len < 9) ++ return 0; ++ ++ *pos++ = WLAN_EID_VENDOR_SPECIFIC; ++ *pos++ = 7; /* len */ ++ WPA_PUT_BE24(pos, OUI_WFA); ++ pos += 3; ++ *pos++ = MULTI_AP_OUI_TYPE; ++ *pos++ = MULTI_AP_SUB_ELEM_TYPE; ++ *pos++ = 1; /* len */ ++ *pos++ = value; ++ ++ return pos - buf; ++} ++ ++ + static const struct country_op_class us_op_class[] = { + { 1, 115 }, + { 2, 118 }, +--- a/src/common/ieee802_11_common.h ++++ b/src/common/ieee802_11_common.h +@@ -84,6 +84,7 @@ struct ieee802_11_elems { + const u8 *power_capab; + const u8 *roaming_cons_sel; + const u8 *password_id; ++ const u8 *multi_ap; + + u8 ssid_len; + u8 supp_rates_len; +@@ -130,6 +131,7 @@ struct ieee802_11_elems { + u8 power_capab_len; + u8 roaming_cons_sel_len; + u8 password_id_len; ++ u8 multi_ap_len; + + struct mb_ies_info mb_ies; + }; +@@ -189,6 +191,8 @@ const u8 * get_ie_ext(const u8 *ies, siz + + size_t mbo_add_ie(u8 *buf, size_t len, const u8 *attr, size_t attr_len); + ++size_t add_multi_ap_ie(u8 *buf, size_t len, u8 value); ++ + struct country_op_class { + u8 country_op_class; + u8 global_op_class; +--- a/src/common/ieee802_11_defs.h ++++ b/src/common/ieee802_11_defs.h +@@ -1210,6 +1210,13 @@ struct ieee80211_ampe_ie { + #define MBO_OUI_TYPE 22 + #define OWE_IE_VENDOR_TYPE 0x506f9a1c + #define OWE_OUI_TYPE 28 ++#define MULTI_AP_OUI_TYPE 0x1B ++ ++#define MULTI_AP_SUB_ELEM_TYPE 0x06 ++#define MULTI_AP_TEAR_DOWN BIT(4) ++#define MULTI_AP_FRONTHAUL_BSS BIT(5) ++#define MULTI_AP_BACKHAUL_BSS BIT(6) ++#define MULTI_AP_BACKHAUL_STA BIT(7) + + #define WMM_OUI_TYPE 2 + #define WMM_OUI_SUBTYPE_INFORMATION_ELEMENT 0 |