diff --git a/hostapd/config_file.c b/hostapd/config_file.c index 9ce604f49..b5393fd6c 100644 --- a/hostapd/config_file.c +++ b/hostapd/config_file.c @@ -3638,6 +3638,15 @@ static int hostapd_config_fill(struct hostapd_config *conf, return 1; } bss->unsol_bcast_probe_resp_interval = val; + } else if (os_strcmp(buf, "mbssid") == 0) { + int mbssid = atoi(pos); + if (mbssid < 0 || mbssid > ENHANCED_MBSSID_ENABLED) { + wpa_printf(MSG_ERROR, + "Line %d: invalid mbssid (%d): '%s'.", + line, mbssid, pos); + return 1; + } + conf->mbssid = mbssid; #endif /* CONFIG_IEEE80211AX */ } else if (os_strcmp(buf, "max_listen_interval") == 0) { bss->max_listen_interval = atoi(pos); diff --git a/hostapd/hostapd.conf b/hostapd/hostapd.conf index c3c03bba9..6b9a7d260 100644 --- a/hostapd/hostapd.conf +++ b/hostapd/hostapd.conf @@ -3134,3 +3134,63 @@ own_ip_addr=127.0.0.1 #bss=wlan0_1 #bssid=00:13:10:95:fe:0b # ... +# +# Multiple BSSID Advertisement in IEEE 802.11ax +# IEEE Std 802.11ax-2021 added a feature where instead of multiple interfaces +# on a common radio transmitting individual Beacon frames, those interfaces can +# form a set with a common Beacon frame transmitted for all. The interface +# which is brought up first is called the transmitting profile of the MBSSID +# set which transmits the Beacon frames. The remaining interfaces are called +# the non-transmitting profiles and these are advertised inside the Multiple +# BSSID element in the Beacon and Probe Response frames from the first +# interface. +# +# The transmitting interface is visible to all stations in the vicinity, however +# the stations that do not support parsing of the Multiple BSSID element will +# not be able to connect to the non-transmitting interfaces. +# +# Enhanced Multiple BSSID Advertisements (EMA) +# When enabled, the non-transmitting interfaces are split into multiple +# Beacon frames. The number of Beacon frames required to cover all the +# non-transmitting profiles is called the profile periodicity. +# +# Refer to IEEE Std 802.11-2020 for details regarding the procedure and +# required MAC address assignment. +# +# Following configuration is per radio. +# 0 = Disabled (default) +# 1 = Multiple BSSID advertisement enabled. +# 2 = Enhanced multiple BSSID advertisement enabled. +#mbssid=0 +# +# The transmitting interface should be added with the 'interface' option while +# the non-transmitting interfaces should be added using the 'bss' option. +# Security configuration should be added separately per interface, if required. +# +# Example: +#mbssid=2 +#interface=wlan2 +#ctrl_interface=/var/run/hostapd +#wpa_passphrase=0123456789 +#ieee80211w=2 +#sae_pwe=1 +#auth_algs=1 +#wpa=2 +#wpa_pairwise=CCMP +#ssid= +#bridge=br-lan +#wpa_key_mgmt=SAE +#bssid=00:03:7f:12:84:84 +# +#bss=wlan2-1 +#ctrl_interface=/var/run/hostapd +#wpa_passphrase=0123456789 +#ieee80211w=2 +#sae_pwe=1 +#auth_algs=1 +#wpa=2 +#wpa_pairwise=CCMP +#ssid= +#bridge=br-lan +#wpa_key_mgmt=SAE +#bssid=00:03:7f:12:84:85 diff --git a/src/ap/ap_config.c b/src/ap/ap_config.c index e83347b83..dd73e68b3 100644 --- a/src/ap/ap_config.c +++ b/src/ap/ap_config.c @@ -1460,6 +1460,12 @@ static int hostapd_config_check_bss(struct hostapd_bss_config *bss, } #endif /* CONFIG_IEEE80211BE */ + if (full_config && bss->ignore_broadcast_ssid && conf->mbssid) { + wpa_printf(MSG_ERROR, + "Hidden SSID is not suppored when MBSSID is enabled"); + return -1; + } + return 0; } @@ -1543,6 +1549,12 @@ int hostapd_config_check(struct hostapd_config *conf, int full_config) } #endif /* CONFIG_IEEE80211BE */ + if (full_config && conf->mbssid && !conf->ieee80211ax) { + wpa_printf(MSG_ERROR, + "Cannot enable multiple BSSID support without ieee80211ax"); + return -1; + } + for (i = 0; i < conf->num_bss; i++) { if (hostapd_config_check_bss(conf->bss[i], conf, full_config)) return -1; diff --git a/src/ap/ap_config.h b/src/ap/ap_config.h index 4e14bc6f2..92293dc88 100644 --- a/src/ap/ap_config.h +++ b/src/ap/ap_config.h @@ -1145,6 +1145,12 @@ struct hostapd_config { #define CH_SWITCH_EHT_ENABLED BIT(0) #define CH_SWITCH_EHT_DISABLED BIT(1) unsigned int ch_switch_eht_config; + + enum mbssid { + MBSSID_DISABLED = 0, + MBSSID_ENABLED = 1, + ENHANCED_MBSSID_ENABLED = 2, + } mbssid; };