hostapd: add support for WPS pushbutton station
similar to hostapd, also add a ubus interface for wpa_supplicant
which will allow handling WPS push-button just as it works for hostapd.
In order to have wpa_supplicant running without any network
configuration (so you can use it to retrieve credentials via WPS),
configure wifi-iface in /etc/config/wireless:
config wifi-iface 'default_radio0'
option device 'radio0'
option network 'wwan'
option mode 'sta'
option encryption 'wps'
This section will automatically be edited if credentials have
successfully been acquired via WPS.
Size difference (mips_24kc): roughly +4kb for the 'full' variants of
wpa_supplicant and wpad which do support WPS.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle
@@ -7,7 +7,7 @@
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include $(TOPDIR)/rules.mk
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PKG_NAME:=hostapd
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PKG_RELEASE:=6
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PKG_RELEASE:=7
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PKG_SOURCE_URL:=http://w1.fi/hostap.git
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PKG_SOURCE_PROTO:=git
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@@ -296,7 +296,7 @@ define Package/wpa-supplicant/Default
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CATEGORY:=Network
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TITLE:=WPA Supplicant
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URL:=http://hostap.epitest.fi/wpa_supplicant/
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DEPENDS:=$(DRV_DEPENDS)
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DEPENDS:=$(DRV_DEPENDS) +hostapd-common +libubus
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PROVIDES:=wpa-supplicant
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CONFLICTS:=$(SUPPLICANT_PROVIDERS)
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SUPPLICANT_PROVIDERS+=$(1)
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@@ -444,10 +444,7 @@ TARGET_CPPFLAGS := \
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$(if $(CONFIG_WPA_MSG_MIN_PRIORITY),-DCONFIG_MSG_MIN_PRIORITY=$(CONFIG_WPA_MSG_MIN_PRIORITY))
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TARGET_CFLAGS += -ffunction-sections -fdata-sections -flto
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TARGET_LDFLAGS += -Wl,--gc-sections -flto=jobserver -fuse-linker-plugin
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ifeq ($(findstring supplicant,$(BUILD_VARIANT)),)
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TARGET_LDFLAGS += -lubox -lubus
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endif
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TARGET_LDFLAGS += -Wl,--gc-sections -flto=jobserver -fuse-linker-plugin -lubox -lubus
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ifdef CONFIG_PACKAGE_kmod-cfg80211
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TARGET_LDFLAGS += -lm -lnl-tiny
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@@ -534,8 +531,9 @@ define Install/supplicant
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endef
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define Package/hostapd-common/install
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$(INSTALL_DIR) $(1)/lib/netifd
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$(INSTALL_DIR) $(1)/lib/netifd $(1)/etc/rc.button
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$(INSTALL_DATA) ./files/hostapd.sh $(1)/lib/netifd/hostapd.sh
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$(INSTALL_BIN) ./files/wps-hotplug.sh $(1)/etc/rc.button/wps
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endef
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define Package/hostapd/install
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@@ -549,9 +547,8 @@ Package/hostapd-wolfssl/install = $(Package/hostapd/install)
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ifneq ($(LOCAL_TYPE),supplicant)
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define Package/hostapd-utils/install
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$(INSTALL_DIR) $(1)/usr/sbin $(1)/etc/rc.button
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$(INSTALL_DIR) $(1)/usr/sbin
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$(INSTALL_BIN) $(PKG_BUILD_DIR)/hostapd/hostapd_cli $(1)/usr/sbin/
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$(INSTALL_BIN) ./files/wps-hotplug.sh $(1)/etc/rc.button/wps
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endef
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endif
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@@ -762,6 +762,9 @@ wpa_supplicant_add_network() {
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hostapd_append_wep_key network_data
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append network_data "wep_tx_keyidx=$wep_keyidx" "$N$T"
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;;
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wps)
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key_mgmt='WPS'
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;;
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psk|sae|psk-sae)
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local passphrase
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@@ -869,7 +872,10 @@ wpa_supplicant_add_network() {
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append network_data "mcast_rate=$mc_rate" "$N$T"
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}
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cat >> "$_config" <<EOF
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if [ "$key_mgnt" = "WPS" ]; then
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echo "wps_cred_processing=1" >> "$_config"
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else
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cat >> "$_config" <<EOF
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network={
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$scan_ssid
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ssid="$ssid"
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@@ -877,6 +883,7 @@ network={
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$network_data
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}
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EOF
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fi
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return 0
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}
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@@ -591,3 +591,8 @@ CONFIG_NO_RANDOM_POOL=y
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# Opportunistic Wireless Encryption (OWE)
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# Experimental implementation of draft-harkins-owe-07.txt
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#CONFIG_OWE=y
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# uBus IPC/RPC System
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# Services can connect to the bus and provide methods
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# that can be called by other services or clients.
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CONFIG_UBUS=y
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@@ -593,3 +593,8 @@ CONFIG_IBSS_RSN=y
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# Opportunistic Wireless Encryption (OWE)
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# Experimental implementation of draft-harkins-owe-07.txt
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#CONFIG_OWE=y
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# uBus IPC/RPC System
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# Services can connect to the bus and provide methods
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# that can be called by other services or clients.
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CONFIG_UBUS=y
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@@ -593,3 +593,8 @@ CONFIG_NO_RANDOM_POOL=y
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# Opportunistic Wireless Encryption (OWE)
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# Experimental implementation of draft-harkins-owe-07.txt
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#CONFIG_OWE=y
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# uBus IPC/RPC System
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# Services can connect to the bus and provide methods
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# that can be called by other services or clients.
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CONFIG_UBUS=y
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@@ -593,3 +593,8 @@ CONFIG_IBSS_RSN=y
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# Opportunistic Wireless Encryption (OWE)
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# Experimental implementation of draft-harkins-owe-07.txt
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#CONFIG_OWE=y
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# uBus IPC/RPC System
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# Services can connect to the bus and provide methods
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# that can be called by other services or clients.
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CONFIG_UBUS=y
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@@ -1,11 +1,56 @@
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#!/bin/sh
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if [ "$ACTION" = "pressed" -a "$BUTTON" = "wps" ]; then
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cd /var/run/hostapd
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for socket in *; do
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[ -S "$socket" ] || continue
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hostapd_cli -i "$socket" wps_pbc
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wps_catch_credentials() {
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local iface ifaces ifc ifname ssid encryption key radio radios
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local found=0
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. /usr/share/libubox/jshn.sh
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ubus -S -t 30 listen wps_credentials | while read creds; do
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json_init
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json_load "$creds"
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json_select wps_credentials || continue
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json_get_vars ifname ssid key encryption
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local ifcname="$ifname"
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json_init
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json_load "$(ubus -S call network.wireless status)"
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json_get_keys radios
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for radio in $radios; do
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json_select $radio
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json_select interfaces
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json_get_keys ifaces
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for ifc in $ifaces; do
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json_select $ifc
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json_get_vars ifname
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[ "$ifname" = "$ifcname" ] && {
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ubus -S call uci set "{\"config\":\"wireless\", \"type\":\"wifi-iface\", \
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\"match\": { \"device\": \"$radio\", \"encryption\": \"wps\" }, \
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\"values\": { \"encryption\": \"$encryption\", \
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\"ssid\": \"$ssid\", \
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\"key\": \"$key\" } }"
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ubus -S call uci commit '{"config": "wireless"}'
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ubus -S call uci apply
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}
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json_select ..
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done
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json_select ..
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json_select ..
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done
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done
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}
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if [ "$ACTION" = "pressed" -a "$BUTTON" = "wps" ]; then
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wps_done=0
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ubusobjs="$( ubus -S list hostapd.* )"
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for ubusobj in $ubusobjs; do
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ubus -S call $ubusobj wps_start && wps_done=1
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done
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[ $wps_done = 0 ] || return 0
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wps_done=0
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ubusobjs="$( ubus -S list wpa_supplicant.* )"
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for ubusobj in $ubusobjs; do
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ubus -S call $ubusobj wps_start && wps_done=1
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done
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[ $wps_done = 0 ] || wps_catch_credentials &
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fi
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return 0
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@@ -341,3 +341,85 @@
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}
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--- a/wpa_supplicant/Makefile
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+++ b/wpa_supplicant/Makefile
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@@ -189,6 +189,12 @@ ifdef CONFIG_EAPOL_TEST
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CFLAGS += -Werror -DEAPOL_TEST
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endif
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+ifdef CONFIG_UBUS
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+CFLAGS += -DUBUS_SUPPORT
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+OBJS += ubus.o
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+LIBS += -lubox -lubus
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+endif
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+
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ifdef CONFIG_CODE_COVERAGE
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CFLAGS += -O0 -fprofile-arcs -ftest-coverage
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LIBS += -lgcov
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@@ -915,6 +921,9 @@ endif
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ifdef CONFIG_IEEE80211AX
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OBJS += ../src/ap/ieee802_11_he.o
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endif
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+ifdef CONFIG_UBUS
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+OBJS += ../src/ap/ubus.o
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+endif
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endif
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ifdef CONFIG_WNM_AP
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CFLAGS += -DCONFIG_WNM_AP
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--- a/wpa_supplicant/wpa_supplicant.c
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+++ b/wpa_supplicant/wpa_supplicant.c
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@@ -5998,6 +5998,8 @@ struct wpa_supplicant * wpa_supplicant_a
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}
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#endif /* CONFIG_P2P */
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+ wpas_ubus_add_bss(wpa_s);
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+
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return wpa_s;
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}
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@@ -6024,6 +6026,8 @@ int wpa_supplicant_remove_iface(struct w
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struct wpa_supplicant *parent = wpa_s->parent;
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#endif /* CONFIG_MESH */
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+ wpas_ubus_free_bss(wpa_s);
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+
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/* Remove interface from the global list of interfaces */
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prev = global->ifaces;
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if (prev == wpa_s) {
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--- a/wpa_supplicant/wpa_supplicant_i.h
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+++ b/wpa_supplicant/wpa_supplicant_i.h
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@@ -17,6 +17,7 @@
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#include "wps/wps_defs.h"
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#include "config_ssid.h"
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#include "wmm_ac.h"
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+#include "ubus.h"
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extern const char *const wpa_supplicant_version;
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extern const char *const wpa_supplicant_license;
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@@ -500,6 +501,7 @@ struct wpa_supplicant {
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unsigned char own_addr[ETH_ALEN];
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unsigned char perm_addr[ETH_ALEN];
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char ifname[100];
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+ struct wpas_ubus_bss ubus;
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#ifdef CONFIG_MATCH_IFACE
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int matched;
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#endif /* CONFIG_MATCH_IFACE */
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--- a/wpa_supplicant/wps_supplicant.c
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+++ b/wpa_supplicant/wps_supplicant.c
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@@ -33,6 +33,7 @@
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#include "p2p/p2p.h"
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#include "p2p_supplicant.h"
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#include "wps_supplicant.h"
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+#include "ubus.h"
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#ifndef WPS_PIN_SCAN_IGNORE_SEL_REG
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@@ -388,6 +389,8 @@ static int wpa_supplicant_wps_cred(void
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wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
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cred->cred_attr, cred->cred_attr_len);
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+ wpas_ubus_notify(wpa_s, cred);
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+
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if (wpa_s->conf->wps_cred_processing == 1)
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return 0;
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249
package/network/services/hostapd/src/wpa_supplicant/ubus.c
Normal file
249
package/network/services/hostapd/src/wpa_supplicant/ubus.c
Normal file
@@ -0,0 +1,249 @@
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/*
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* wpa_supplicant / ubus support
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* Copyright (c) 2018, Daniel Golle <daniel@makrotopia.org>
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* Copyright (c) 2013, Felix Fietkau <nbd@nbd.name>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#include "utils/includes.h"
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#include "utils/common.h"
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#include "utils/eloop.h"
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#include "utils/wpabuf.h"
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#include "common/ieee802_11_defs.h"
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#include "wpa_supplicant_i.h"
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#include "wps_supplicant.h"
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#include "ubus.h"
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static struct ubus_context *ctx;
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static struct blob_buf b;
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static int ctx_ref;
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static inline struct wpa_supplicant *get_wpas_from_object(struct ubus_object *obj)
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{
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return container_of(obj, struct wpa_supplicant, ubus.obj);
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}
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static void ubus_receive(int sock, void *eloop_ctx, void *sock_ctx)
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{
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struct ubus_context *ctx = eloop_ctx;
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ubus_handle_event(ctx);
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}
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static void ubus_reconnect_timeout(void *eloop_data, void *user_ctx)
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{
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if (ubus_reconnect(ctx, NULL)) {
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eloop_register_timeout(1, 0, ubus_reconnect_timeout, ctx, NULL);
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return;
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}
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eloop_register_read_sock(ctx->sock.fd, ubus_receive, ctx, NULL);
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}
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static void wpas_ubus_connection_lost(struct ubus_context *ctx)
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{
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eloop_unregister_read_sock(ctx->sock.fd);
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eloop_register_timeout(1, 0, ubus_reconnect_timeout, ctx, NULL);
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}
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static bool wpas_ubus_init(void)
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{
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if (ctx)
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return true;
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ctx = ubus_connect(NULL);
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if (!ctx)
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return false;
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ctx->connection_lost = wpas_ubus_connection_lost;
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eloop_register_read_sock(ctx->sock.fd, ubus_receive, ctx, NULL);
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return true;
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}
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static void wpas_ubus_ref_inc(void)
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{
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ctx_ref++;
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}
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static void wpas_ubus_ref_dec(void)
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{
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ctx_ref--;
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if (!ctx)
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return;
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if (ctx_ref)
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return;
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eloop_unregister_read_sock(ctx->sock.fd);
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ubus_free(ctx);
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ctx = NULL;
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}
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static int
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wpas_bss_get_features(struct ubus_context *ctx, struct ubus_object *obj,
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struct ubus_request_data *req, const char *method,
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struct blob_attr *msg)
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{
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struct wpa_supplicant *wpa_s = get_wpas_from_object(obj);
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blob_buf_init(&b, 0);
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blobmsg_add_u8(&b, "ht_supported", ht_supported(wpa_s->hw.modes));
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blobmsg_add_u8(&b, "vht_supported", vht_supported(wpa_s->hw.modes));
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ubus_send_reply(ctx, req, b.head);
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return 0;
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}
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#ifdef CONFIG_WPS
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static int
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wpas_bss_wps_start(struct ubus_context *ctx, struct ubus_object *obj,
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struct ubus_request_data *req, const char *method,
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struct blob_attr *msg)
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{
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int rc;
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struct wpa_supplicant *wpa_s = get_wpas_from_object(obj);
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rc = wpas_wps_start_pbc(wpa_s, NULL, 0);
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if (rc != 0)
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return UBUS_STATUS_NOT_SUPPORTED;
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return 0;
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}
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static int
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wpas_bss_wps_cancel(struct ubus_context *ctx, struct ubus_object *obj,
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struct ubus_request_data *req, const char *method,
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struct blob_attr *msg)
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{
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int rc;
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struct wpa_supplicant *wpa_s = get_wpas_from_object(obj);
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rc = wpas_wps_cancel(wpa_s);
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if (rc != 0)
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return UBUS_STATUS_NOT_SUPPORTED;
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return 0;
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}
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#endif
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static const struct ubus_method bss_methods[] = {
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#ifdef CONFIG_WPS
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UBUS_METHOD_NOARG("wps_start", wpas_bss_wps_start),
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UBUS_METHOD_NOARG("wps_cancel", wpas_bss_wps_cancel),
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#endif
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UBUS_METHOD_NOARG("get_features", wpas_bss_get_features),
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};
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static struct ubus_object_type bss_object_type =
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UBUS_OBJECT_TYPE("wpas_bss", bss_methods);
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void wpas_ubus_add_bss(struct wpa_supplicant *wpa_s)
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{
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struct ubus_object *obj = &wpa_s->ubus.obj;
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char *name;
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int ret;
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if (!wpas_ubus_init())
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return;
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if (asprintf(&name, "wpa_supplicant.%s", wpa_s->ifname) < 0)
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return;
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obj->name = name;
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obj->type = &bss_object_type;
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obj->methods = bss_object_type.methods;
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obj->n_methods = bss_object_type.n_methods;
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ret = ubus_add_object(ctx, obj);
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wpas_ubus_ref_inc();
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}
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void wpas_ubus_free_bss(struct wpa_supplicant *wpa_s)
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{
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struct ubus_object *obj = &wpa_s->ubus.obj;
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char *name = (char *) obj->name;
|
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if (!ctx)
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return;
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if (obj->id) {
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ubus_remove_object(ctx, obj);
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wpas_ubus_ref_dec();
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}
|
||||
|
||||
free(name);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_WPS
|
||||
void wpas_ubus_notify(struct wpa_supplicant *wpa_s, const struct wps_credential *cred)
|
||||
{
|
||||
u16 auth_type;
|
||||
char *ifname, *encryption, *ssid, *key;
|
||||
size_t ifname_len;
|
||||
|
||||
if (!cred)
|
||||
return;
|
||||
|
||||
auth_type = cred->auth_type;
|
||||
|
||||
if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK))
|
||||
auth_type = WPS_AUTH_WPA2PSK;
|
||||
|
||||
if (auth_type != WPS_AUTH_OPEN &&
|
||||
auth_type != WPS_AUTH_WPAPSK &&
|
||||
auth_type != WPS_AUTH_WPA2PSK) {
|
||||
wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
|
||||
"unsupported authentication type 0x%x",
|
||||
auth_type);
|
||||
return;
|
||||
}
|
||||
|
||||
if (auth_type == WPS_AUTH_WPAPSK || auth_type == WPS_AUTH_WPA2PSK) {
|
||||
if (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN) {
|
||||
wpa_printf(MSG_ERROR, "WPS: Reject PSK credential with "
|
||||
"invalid Network Key length %lu",
|
||||
(unsigned long) cred->key_len);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
blob_buf_init(&b, 0);
|
||||
|
||||
ifname_len = strlen(wpa_s->ifname);
|
||||
ifname = blobmsg_alloc_string_buffer(&b, "ifname", ifname_len + 1);
|
||||
memcpy(ifname, wpa_s->ifname, ifname_len + 1);
|
||||
ifname[ifname_len] = '\0';
|
||||
blobmsg_add_string_buffer(&b);
|
||||
|
||||
switch (auth_type) {
|
||||
case WPS_AUTH_WPA2PSK:
|
||||
encryption = "psk2";
|
||||
break;
|
||||
case WPS_AUTH_WPAPSK:
|
||||
encryption = "psk";
|
||||
break;
|
||||
default:
|
||||
encryption = "none";
|
||||
break;
|
||||
}
|
||||
|
||||
blobmsg_add_string(&b, "encryption", encryption);
|
||||
|
||||
ssid = blobmsg_alloc_string_buffer(&b, "ssid", cred->ssid_len + 1);
|
||||
memcpy(ssid, cred->ssid, cred->ssid_len);
|
||||
ssid[cred->ssid_len] = '\0';
|
||||
blobmsg_add_string_buffer(&b);
|
||||
|
||||
if (cred->key_len > 0) {
|
||||
key = blobmsg_alloc_string_buffer(&b, "key", cred->key_len + 1);
|
||||
memcpy(key, cred->key, cred->key_len);
|
||||
key[cred->key_len] = '\0';
|
||||
blobmsg_add_string_buffer(&b);
|
||||
}
|
||||
|
||||
// ubus_notify(ctx, &wpa_s->ubus.obj, "wps_credentials", b.head, -1);
|
||||
ubus_send_event(ctx, "wps_credentials", b.head);
|
||||
}
|
||||
#endif /* CONFIG_WPS */
|
||||
53
package/network/services/hostapd/src/wpa_supplicant/ubus.h
Normal file
53
package/network/services/hostapd/src/wpa_supplicant/ubus.h
Normal file
@@ -0,0 +1,53 @@
|
||||
/*
|
||||
* wpa_supplicant / ubus support
|
||||
* Copyright (c) 2018, Daniel Golle <daniel@makrotopia.org>
|
||||
* Copyright (c) 2013, Felix Fietkau <nbd@nbd.name>
|
||||
*
|
||||
* This software may be distributed under the terms of the BSD license.
|
||||
* See README for more details.
|
||||
*/
|
||||
#ifndef __WPAS_UBUS_H
|
||||
#define __WPAS_UBUS_H
|
||||
|
||||
struct wpa_supplicant;
|
||||
#include "wps_supplicant.h"
|
||||
|
||||
#ifdef UBUS_SUPPORT
|
||||
#include <libubus.h>
|
||||
|
||||
struct wpas_ubus_bss {
|
||||
struct ubus_object obj;
|
||||
};
|
||||
|
||||
void wpas_ubus_add_bss(struct wpa_supplicant *wpa_s);
|
||||
void wpas_ubus_free_bss(struct wpa_supplicant *wpa_s);
|
||||
|
||||
#ifdef CONFIG_WPS
|
||||
void wpas_ubus_notify(struct wpa_supplicant *wpa_s, const struct wps_credential *cred);
|
||||
#endif
|
||||
|
||||
#else
|
||||
struct wpas_ubus_bss {};
|
||||
|
||||
static inline void wpas_ubus_add_iface(struct wpa_supplicant *wpa_s)
|
||||
{
|
||||
}
|
||||
|
||||
static inline void wpas_ubus_free_iface(struct wpa_supplicant *wpa_s)
|
||||
{
|
||||
}
|
||||
|
||||
static inline void wpas_ubus_add_bss(struct wpa_supplicant *wpa_s)
|
||||
{
|
||||
}
|
||||
|
||||
static inline void wpas_ubus_free_bss(struct wpa_supplicant *wpa_s)
|
||||
{
|
||||
}
|
||||
|
||||
static inline void wpas_ubus_notify(struct wpa_supplicant *wpa_s, struct wps_credential *cred)
|
||||
{
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user