diff --git a/open_esplibs/libwpa/wpa_main.c b/open_esplibs/libwpa/wpa_main.c
index c1133e6..28acb45 100644
--- a/open_esplibs/libwpa/wpa_main.c
+++ b/open_esplibs/libwpa/wpa_main.c
@@ -7,5 +7,117 @@
 #if OPEN_LIBWPA_WPA_MAIN
 // The contents of this file are only built if OPEN_LIBWPA_WPA_MAIN is set to true
 
+#include "espressif/user_interface.h"
+#include "etstimer.h"
+#include "espressif/osapi.h"
+#include "esplibs/libnet80211.h"
+#include "esplibs/libmain.h"
+#include "esplibs/libwpa.h"
+#include "esplibs/libpp.h"
+#include "lwip/dhcp.h"
+
+static void wpa_callback1(struct pbuf* pb) {
+    struct netif *netif = sdk_g_ic.v.station_netif_info->netif;
+    sdk_ieee80211_output_pbuf(netif, pb);
+}
+
+static void wpa_callback2(int arg0) {
+    struct sdk_g_ic_netif_info *netif_info = sdk_g_ic.v.station_netif_info;
+    sdk_ieee80211_send_mgmt(netif_info, 192, arg0);
+    sdk_ieee80211_sta_new_state(&sdk_g_ic, 2, (arg0 << 8) | 192);
+}
+
+void sdk_wpa_config_profile(struct sdk_g_ic_st *g_ic) {
+    uint8_t v = g_ic->s._unknown209;
+
+    if (v == 2 || v == 3 || v == 6) {
+        sdk_wpa_set_profile(1);
+        return;
+    }
+
+    if (v == 4 || v == 5 || v == 7)
+        sdk_wpa_set_profile(2);
+}
+
+void sdk_wpa_config_bss(struct sdk_g_ic_st *g_ic, uint8_t (* hwaddr2)[6]) {
+    struct sdk_g_ic_netif_info *netif_info = g_ic->v.station_netif_info;
+    struct netif *netif = netif_info->netif;
+    sdk_wpa_set_bss(netif->hwaddr, hwaddr2, g_ic->s._unknown20a, g_ic->s._unknown20c,
+                    g_ic->s.sta_password, g_ic->s._unknown1e4.sta_ssid,
+                    (g_ic->s._unknown1e4._unknown1e6 << 16) | g_ic->s._unknown1e4._unknown1e4);
+}
+
+void sdk_wpa_config_assoc_ie(int arg0, int16_t *arg1, int32_t arg2) {
+    if (arg0 != 1)
+        sdk_g_ic.v._unknown178 = arg1;
+    else
+        sdk_g_ic.v._unknown174 = arg1;
+
+    *arg1 = arg2;
+}
+
+void sdk_dhcp_bind_check() {
+    struct sdk_g_ic_netif_info *netif_info = sdk_g_ic.v.station_netif_info;
+    uint8_t connect_status = netif_info->connect_status;
+    uint8_t unknown20a = sdk_g_ic.s._unknown20a;
+
+    if (connect_status != 5) {
+        if (unknown20a == 7 || unknown20a == 8) {
+            netif_info->connect_status = 2;
+        }
+    }
+}
+
+void sdk_eagle_auth_done() {
+    struct sdk_g_ic_netif_info *netif_info = sdk_g_ic.v.station_netif_info;
+    struct netif *netif = netif_info->netif;
+    struct sdk_netif_conninfo *conninfo = netif_info->_unknown88;
+
+    if (conninfo->_unknown08 & 1)
+        return;
+
+    uint32_t channel = conninfo->_unknown78->channel;
+    char *ssid = (char *)sdk_g_ic.s._unknown1e4.sta_ssid;
+    printf("\nconnected with %s, channel %d\n", ssid, channel);
+
+    RTCMEM_SYSTEM[61] = 0x00010000 | channel;
+
+    ETSTimer *timer = &netif_info->timer;
+    sdk_os_timer_disarm(timer);
+    sdk_os_timer_setfn(timer, sdk_dhcp_bind_check, 0);
+    sdk_os_timer_arm(timer, 15000, 0);
+
+    netif_info->statusb9 = 0;
+    conninfo->_unknown18 = 0;
+    conninfo->_unknown08 |= 1;
+
+    // TODO lwip v2 removed the NETIF_FLAG_DHCP flag.
+    if (netif->flags & 0x08) // NETIF_FLAG_DHCP
+        return;
+
+    // lwip v2: if (ip4_addr_isany_val(netif->ip_addr)) {
+    if (netif->ip_addr.addr == 0) {
+        if (sdk_dhcpc_flag != DHCP_STOPPED) {
+            printf("dhcp client start...\n");
+            dhcp_start(netif);
+        }
+        return;
+    }
+
+    system_station_got_ip_set(&netif->ip_addr, &netif->netmask, &netif->gw);
+    netif_set_up(netif);
+}
+
+void sdk_wpa_neg_complete() {
+    sdk_eagle_auth_done();
+}
+
+void sdk_wpa_attach(struct sdk_g_ic_st *g_ic) {
+    g_ic->v._unknown180 = NULL;
+    g_ic->v._unknown184 = &(g_ic->v._unknown180);
+    sdk_wpa_register(0, wpa_callback1, sdk_wpa_config_assoc_ie, sdk_ppInstallKey,
+                     wpa_callback2, sdk_wpa_neg_complete);
+    sdk_ppRegisterTxCallback(sdk_eapol_txcb, 3);
+}
 
 #endif /* OPEN_LIBWPA_WPA_MAIN */