高通QSDK wpa_supplicant启动流程

1. qca/feeds/qca/net/qca-hostap/files/qca-wpa-supplicant.init

   START=13
   
   boot_supplicant() {
   	if [ -e "/var/run/wpa_supplicant-global.pid" ]
   	then
   		kill $(cat /var/run/wpa_supplicant-global.pid) &> /dev/null
   		rm /var/run/wpa_supplicant-global.pid &> /dev/null
   	fi
   	# 最重要的是该条命令，创建wpa全局
   	wpa_supplicant -g /var/run/wpa_supplicantglobal -B -P /var/run/wpa_supplicant-global.pid
   }
   
   boot() {
   	boot_supplicant &
   }
   

2. qca/feeds/qca/net/qca-wifi/files/qcawificfg80211.sh

   enable_vifs_qcawificfg80211() {
   
   		wds|sta)
   			if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
   			   #wpa_supplicant_setup_vif 函数在qca/feeds/qca/net/qca-hostap/files/wpa_supplicant.sh中
   				wpa_supplicant_setup_vif "$vif" nl80211 || {
   					echo "start_qcawifi($device): Failed to set up wpa_supplicant for interface $ifname" >&2
   					ifconfig "$ifname" down
   					iw "$ifname" del
   					return
   				}
   			fi
   }
   

3. qca/feeds/qca/net/qca-hostap/files/wpa_supplicant.sh

   • 生成配置文件

     cat > /var/run/wpa_supplicant-$ifname.conf <<EOF
     ctrl_interface=$ctrl_interface
     $wps_config_methods
     pmf=$pmf
     $wps_cred
     $update_config
     $uuid_config
     wps_cross_band_overlap=$wps_cross_band_overlap
     $sae_groups
     $dot11RSNAConfigPMKLifetime
     $pwe
     wps_cred_add_sae=$wps_cred_add_sae
     $dpp_map
     $dpp_1905_connector
     $sta_mld_addr
     $mlo_links
     $pref_assoc_lk
     $allow_non_ml_assoc
     network={
     	$modestr
     	scan_ssid=1
     	ssid="$ssid"
     	$bssid
     	$preferred_ap_mld_addr
     	key_mgmt=$key_mgmt
     	$proto
     	$freq
     	$ieee80211w
     	$beacon_prot
     	$passphrase
     	$sae_pwd
     	$sae_password_id
     	$pairwise
     	$group
     	$eap_type
     	$ca_cert
     	$client_cert
     	$priv_key
     	$priv_key_pwd
     	$phase2
     	$identity
     	$password
     	$wep_key0
     	$wep_key1
     	$wep_key2
     	$wep_key3
     	$wep_tx_keyidx
     	$wep_auth_alg
     	$owe_only
     	$group_mgmt
     	$phase1
     	$owe_group
     	$dpp_connector
     	$dpp_csign
     	$dpp_pp_key
     	$dpp_netaccesskey
     	multi_ap_backhaul_sta=$multi_ap_backhaul_sta
     	multi_ap_profile=$map
     	$dpp_pfs
     }
     EOF
     

   • 创建接口

     wpa_cli -g /var/run/wpa_supplicantglobal interface_add  $ifname /var/run/wpa_supplicant-$ifname.conf $driver /var/run/wpa_supplicant-$ifname "" $bridge