wps_enrollee.c revision b36ed7cd946148d829f311de8fe53ea3ffaaffe3
1b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru/* 2b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * Wi-Fi Protected Setup - Enrollee 38393335b955da7340c9f19b1b4b2d6c0c2c04be7Craig Cornelius * Copyright (c) 2008, Jouni Malinen <j@w1.fi> 4b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * 5b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * This software may be distributed under the terms of the BSD license. 650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho * See README for more details. 7b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru */ 8b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 9b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#include "includes.h" 10b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 11b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#include "common.h" 12b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#include "crypto/crypto.h" 13b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#include "crypto/sha256.h" 14b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#include "crypto/random.h" 15b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#include "wps_i.h" 16b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#include "wps_dev_attr.h" 17b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 18b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 19b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic int wps_build_wps_state(struct wps_data *wps, struct wpabuf *msg) 20b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 21b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru u8 state; 22b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps->wps->ap) 23b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru state = wps->wps->wps_state; 24b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru else 25b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru state = WPS_STATE_NOT_CONFIGURED; 2650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_printf(MSG_DEBUG, "WPS: * Wi-Fi Protected Setup State (%d)", 27b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru state); 28b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, ATTR_WPS_STATE); 29b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, 1); 30b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_u8(msg, state); 3150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return 0; 32b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 33b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 34b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 35b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic int wps_build_e_hash(struct wps_data *wps, struct wpabuf *msg) 36b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho{ 37b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru u8 *hash; 38b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru const u8 *addr[4]; 39b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru size_t len[4]; 40b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 41b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (random_get_bytes(wps->snonce, 2 * WPS_SECRET_NONCE_LEN) < 0) 42b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return -1; 43b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_hexdump(MSG_DEBUG, "WPS: E-S1", wps->snonce, WPS_SECRET_NONCE_LEN); 44b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_hexdump(MSG_DEBUG, "WPS: E-S2", 45b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->snonce + WPS_SECRET_NONCE_LEN, WPS_SECRET_NONCE_LEN); 46b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 47b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps->dh_pubkey_e == NULL || wps->dh_pubkey_r == NULL) { 48b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: DH public keys not available for " 49b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru "E-Hash derivation"); 50b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return -1; 51b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 52b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 53b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: * E-Hash1"); 548393335b955da7340c9f19b1b4b2d6c0c2c04be7Craig Cornelius wpabuf_put_be16(msg, ATTR_E_HASH1); 55b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, SHA256_MAC_LEN); 56b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru hash = wpabuf_put(msg, SHA256_MAC_LEN); 57b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru /* E-Hash1 = HMAC_AuthKey(E-S1 || PSK1 || PK_E || PK_R) */ 58b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru addr[0] = wps->snonce; 59b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru len[0] = WPS_SECRET_NONCE_LEN; 60b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru addr[1] = wps->psk1; 61b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru len[1] = WPS_PSK_LEN; 62b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru addr[2] = wpabuf_head(wps->dh_pubkey_e); 63b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru len[2] = wpabuf_len(wps->dh_pubkey_e); 64c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru addr[3] = wpabuf_head(wps->dh_pubkey_r); 65c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru len[3] = wpabuf_len(wps->dh_pubkey_r); 66c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru hmac_sha256_vector(wps->authkey, WPS_AUTHKEY_LEN, 4, addr, len, hash); 67103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius wpa_hexdump(MSG_DEBUG, "WPS: E-Hash1", hash, SHA256_MAC_LEN); 68c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 69103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius wpa_printf(MSG_DEBUG, "WPS: * E-Hash2"); 70c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpabuf_put_be16(msg, ATTR_E_HASH2); 71c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpabuf_put_be16(msg, SHA256_MAC_LEN); 72103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius hash = wpabuf_put(msg, SHA256_MAC_LEN); 73b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /* E-Hash2 = HMAC_AuthKey(E-S2 || PSK2 || PK_E || PK_R) */ 74c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru addr[0] = wps->snonce + WPS_SECRET_NONCE_LEN; 75c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru addr[1] = wps->psk2; 76b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru hmac_sha256_vector(wps->authkey, WPS_AUTHKEY_LEN, 4, addr, len, hash); 77b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_hexdump(MSG_DEBUG, "WPS: E-Hash2", hash, SHA256_MAC_LEN); 78b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 79b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return 0; 80b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 81b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 82c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 83c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Querustatic int wps_build_e_snonce1(struct wps_data *wps, struct wpabuf *msg) 84b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru{ 85c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: * E-SNonce1"); 86b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru wpabuf_put_be16(msg, ATTR_E_SNONCE1); 87c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpabuf_put_be16(msg, WPS_SECRET_NONCE_LEN); 88c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpabuf_put_data(msg, wps->snonce, WPS_SECRET_NONCE_LEN); 89b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return 0; 90b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 91b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 92b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 93b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic int wps_build_e_snonce2(struct wps_data *wps, struct wpabuf *msg) 94b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 95b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: * E-SNonce2"); 96b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, ATTR_E_SNONCE2); 97c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpabuf_put_be16(msg, WPS_SECRET_NONCE_LEN); 98c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpabuf_put_data(msg, wps->snonce + WPS_SECRET_NONCE_LEN, 99c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru WPS_SECRET_NONCE_LEN); 100c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return 0; 101b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho} 102c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 103c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 104b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Querustatic struct wpabuf * wps_build_m1(struct wps_data *wps) 105c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru{ 106c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru struct wpabuf *msg; 107c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru u16 config_methods; 108b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 109b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (random_get_bytes(wps->nonce_e, WPS_NONCE_LEN) < 0) 110b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return NULL; 111b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Nonce", 112b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->nonce_e, WPS_NONCE_LEN); 113b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 114b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Building Message M1"); 11550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho msg = wpabuf_alloc(1000); 116b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (msg == NULL) 117b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return NULL; 118b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 119b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho config_methods = wps->wps->config_methods; 120b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps->wps->ap && !wps->pbc_in_m1 && 121b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru (wps->dev_password_len != 0 || 122b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru (config_methods & WPS_CONFIG_DISPLAY))) { 123b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru /* 124b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * These are the methods that the AP supports as an Enrollee 125b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho * for adding external Registrars, so remove PushButton. 126b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * 127b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * As a workaround for Windows 7 mechanism for probing WPS 128b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * capabilities from M1, leave PushButton option if no PIN 129b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * method is available or if WPS configuration enables PBC 130b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * workaround. 131b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru */ 132b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru config_methods &= ~WPS_CONFIG_PUSHBUTTON; 133b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#ifdef CONFIG_WPS2 134b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru config_methods &= ~(WPS_CONFIG_VIRT_PUSHBUTTON | 135b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru WPS_CONFIG_PHY_PUSHBUTTON); 136b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#endif /* CONFIG_WPS2 */ 137b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 138103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius 13950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (wps_build_version(msg) || 14050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_msg_type(msg, WPS_M1) || 14150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_uuid_e(msg, wps->uuid_e) || 14250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_mac_addr(msg, wps->mac_addr_e) || 14350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_enrollee_nonce(wps, msg) || 14450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_public_key(wps, msg) || 14550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_auth_type_flags(wps, msg) || 14650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_encr_type_flags(wps, msg) || 14750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_conn_type_flags(wps, msg) || 14850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_config_methods(msg, config_methods) || 14950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_wps_state(wps, msg) || 15050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_device_attrs(&wps->wps->dev, msg) || 15150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_rf_bands(&wps->wps->dev, msg, 15250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->wps->rf_band_cb(wps->wps->cb_ctx)) || 15350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_assoc_state(wps, msg) || 15450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_dev_password_id(msg, wps->dev_pw_id) || 155b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wps_build_config_error(msg, WPS_CFG_NO_ERROR) || 15650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_os_version(&wps->wps->dev, msg) || 15750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_wfa_ext(msg, 0, NULL, 0) || 15850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_vendor_ext_m1(&wps->wps->dev, msg)) { 15950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpabuf_free(msg); 160103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius return NULL; 16150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 16254dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius 16350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->state = RECV_M2; 16450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return msg; 16550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho} 16650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 167103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius 168b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic struct wpabuf * wps_build_m3(struct wps_data *wps) 169b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 170b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru struct wpabuf *msg; 171b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 172b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Building Message M3"); 173b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 174b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps->dev_password == NULL) { 175b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: No Device Password available"); 176b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return NULL; 177b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 178b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_derive_psk(wps, wps->dev_password, wps->dev_password_len); 179b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 180b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru msg = wpabuf_alloc(1000); 181b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (msg == NULL) 182b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return NULL; 183b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 184b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps_build_version(msg) || 185b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_build_msg_type(msg, WPS_M3) || 186b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_build_registrar_nonce(wps, msg) || 187b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_build_e_hash(wps, msg) || 188b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_build_wfa_ext(msg, 0, NULL, 0) || 189b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_build_authenticator(wps, msg)) { 190b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_free(msg); 191b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return NULL; 192b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 193b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 194b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->state = RECV_M4; 195b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return msg; 196b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 197b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 198b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 199b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic struct wpabuf * wps_build_m5(struct wps_data *wps) 200b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 201b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru struct wpabuf *msg, *plain; 202b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 203b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Building Message M5"); 204b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 205b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru plain = wpabuf_alloc(200); 206b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (plain == NULL) 207b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return NULL; 208b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 209b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru msg = wpabuf_alloc(1000); 210b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (msg == NULL) { 21150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpabuf_free(plain); 21250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return NULL; 21350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 21450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 21550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (wps_build_version(msg) || 21650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_msg_type(msg, WPS_M5) || 21750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_registrar_nonce(wps, msg) || 21850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_e_snonce1(wps, plain) || 21950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_key_wrap_auth(wps, plain) || 22050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_encr_settings(wps, msg, plain) || 22150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_wfa_ext(msg, 0, NULL, 0) || 22227f654740f2a26ad62a5c155af9199af9e69b889claireho wps_build_authenticator(wps, msg)) { 22350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpabuf_free(plain); 22450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpabuf_free(msg); 22550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return NULL; 22650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 22750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpabuf_free(plain); 22850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 22950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->state = RECV_M6; 230b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return msg; 231b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 232b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 233b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 234b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic int wps_build_cred_ssid(struct wps_data *wps, struct wpabuf *msg) 235b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 236b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_printf(MSG_DEBUG, "WPS: * SSID"); 237b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, ATTR_SSID); 238b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, wps->wps->ssid_len); 239b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_data(msg, wps->wps->ssid, wps->wps->ssid_len); 240b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return 0; 241b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 242b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 243b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 244b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic int wps_build_cred_auth_type(struct wps_data *wps, struct wpabuf *msg) 245b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 246b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: * Authentication Type (0x%x)", 247b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->wps->ap_auth_type); 248b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, ATTR_AUTH_TYPE); 249b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, 2); 250b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, wps->wps->ap_auth_type); 251b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return 0; 25250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho} 25350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 254b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 255b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic int wps_build_cred_encr_type(struct wps_data *wps, struct wpabuf *msg) 256b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 257b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: * Encryption Type (0x%x)", 258b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->wps->ap_encr_type); 259b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, ATTR_ENCR_TYPE); 260b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, 2); 261b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, wps->wps->ap_encr_type); 262b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return 0; 263b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 264b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 265b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 266b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic int wps_build_cred_network_key(struct wps_data *wps, struct wpabuf *msg) 267b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 268b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if ((wps->wps->ap_auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) && 26950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->wps->network_key_len == 0) { 27050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho char hex[65]; 27150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho u8 psk[32]; 27250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Generate a random per-device PSK */ 27350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (random_get_bytes(psk, sizeof(psk)) < 0) 27450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return -1; 27550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_hexdump_key(MSG_DEBUG, "WPS: Generated per-device PSK", 27650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho psk, sizeof(psk)); 27750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_printf(MSG_DEBUG, "WPS: * Network Key (len=%u)", 27850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (unsigned int) wps->new_psk_len * 2); 27950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_snprintf_hex(hex, sizeof(hex), psk, sizeof(psk)); 28050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpabuf_put_be16(msg, ATTR_NETWORK_KEY); 28150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpabuf_put_be16(msg, sizeof(psk) * 2); 282103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius wpabuf_put_data(msg, hex, sizeof(psk) * 2); 28350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (wps->wps->registrar) { 28454dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius wps_cb_new_psk(wps->wps->registrar, 28550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->peer_dev.mac_addr, 28650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->p2p_dev_addr, psk, sizeof(psk)); 287b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 288b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return 0; 289b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 290b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 291b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: * Network Key (len=%u)", 292b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru (unsigned int) wps->wps->network_key_len); 293b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, ATTR_NETWORK_KEY); 294b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, wps->wps->network_key_len); 295b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_data(msg, wps->wps->network_key, wps->wps->network_key_len); 296b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return 0; 297b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 298b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 299b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 300b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic int wps_build_cred_mac_addr(struct wps_data *wps, struct wpabuf *msg) 301b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 302b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: * MAC Address (AP BSSID)"); 303b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, ATTR_MAC_ADDR); 304b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_be16(msg, ETH_ALEN); 305b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_data(msg, wps->wps->dev.mac_addr, ETH_ALEN); 306b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return 0; 307b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 308b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 309b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 310b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic int wps_build_ap_settings(struct wps_data *wps, struct wpabuf *plain) 311b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 312b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru const u8 *start, *end; 313b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru int ret; 314b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 315b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps->wps->ap_settings) { 316b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: * AP Settings (pre-configured)"); 317b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_put_data(plain, wps->wps->ap_settings, 318b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->wps->ap_settings_len); 319b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return 0; 320b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 321b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 322b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: * AP Settings based on current configuration"); 323b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru start = wpabuf_put(plain, 0); 324b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru ret = wps_build_cred_ssid(wps, plain) || 325b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_build_cred_mac_addr(wps, plain) || 326b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_build_cred_auth_type(wps, plain) || 32750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_cred_encr_type(wps, plain) || 32850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_cred_network_key(wps, plain); 32950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho end = wpabuf_put(plain, 0); 33050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 33150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_hexdump_key(MSG_DEBUG, "WPS: Plaintext AP Settings", 33250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho start, end - start); 33350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 33450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return ret; 33550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho} 33650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 33750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 33850294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehostatic struct wpabuf * wps_build_m7(struct wps_data *wps) 33950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho{ 34050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho struct wpabuf *msg, *plain; 34150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 342103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius wpa_printf(MSG_DEBUG, "WPS: Building Message M7"); 34350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 34454dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius plain = wpabuf_alloc(500 + wps->wps->ap_settings_len); 34550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (plain == NULL) 34650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return NULL; 34750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 34850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho msg = wpabuf_alloc(1000 + wps->wps->ap_settings_len); 349b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (msg == NULL) { 350b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_free(plain); 35150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return NULL; 35250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 35350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 35450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (wps_build_version(msg) || 35550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_msg_type(msg, WPS_M7) || 35650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_build_registrar_nonce(wps, msg) || 357b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_build_e_snonce2(wps, plain) || 358b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru (wps->wps->ap && wps_build_ap_settings(wps, plain)) || 359b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_build_key_wrap_auth(wps, plain) || 360b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_build_encr_settings(wps, msg, plain) || 361b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_build_wfa_ext(msg, 0, NULL, 0) || 362b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_build_authenticator(wps, msg)) { 363b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_free(plain); 364b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_free(msg); 36550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return NULL; 366b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 367b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_free(plain); 368b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 369b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps->wps->ap && wps->wps->registrar) { 370b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru /* 371b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * If the Registrar is only learning our current configuration, 372b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * it may not continue protocol run to successful completion. 373103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius * Store information here to make sure it remains available. 37450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho */ 37550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_device_store(wps->wps->registrar, &wps->peer_dev, 37650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->uuid_r); 37750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 37850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 37950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->state = RECV_M8; 38050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return msg; 38150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho} 38250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 38350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 38450294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehostatic struct wpabuf * wps_build_wsc_done(struct wps_data *wps) 38550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho{ 38650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho struct wpabuf *msg; 38750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 388103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius wpa_printf(MSG_DEBUG, "WPS: Building Message WSC_Done"); 38950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 39054dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius msg = wpabuf_alloc(1000); 39150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (msg == NULL) 39250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return NULL; 39350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 394b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps_build_version(msg) || 3952e615e9896b12236afe0ff2695e8afc2ee73f961claireho wps_build_msg_type(msg, WPS_WSC_DONE) || 3962e615e9896b12236afe0ff2695e8afc2ee73f961claireho wps_build_enrollee_nonce(wps, msg) || 3972e615e9896b12236afe0ff2695e8afc2ee73f961claireho wps_build_registrar_nonce(wps, msg) || 3982e615e9896b12236afe0ff2695e8afc2ee73f961claireho wps_build_wfa_ext(msg, 0, NULL, 0)) { 3992e615e9896b12236afe0ff2695e8afc2ee73f961claireho wpabuf_free(msg); 400b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return NULL; 4012e615e9896b12236afe0ff2695e8afc2ee73f961claireho } 4022e615e9896b12236afe0ff2695e8afc2ee73f961claireho 4032e615e9896b12236afe0ff2695e8afc2ee73f961claireho if (wps->wps->ap) 4042e615e9896b12236afe0ff2695e8afc2ee73f961claireho wps->state = RECV_ACK; 405b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho else { 406b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wps_success_event(wps->wps, wps->peer_dev.mac_addr); 407b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wps->state = WPS_FINISHED; 408b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho } 409b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return msg; 410b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho} 411b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 412b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 4132e615e9896b12236afe0ff2695e8afc2ee73f961clairehostruct wpabuf * wps_enrollee_get_msg(struct wps_data *wps, 4142e615e9896b12236afe0ff2695e8afc2ee73f961claireho enum wsc_op_code *op_code) 4152e615e9896b12236afe0ff2695e8afc2ee73f961claireho{ 4162e615e9896b12236afe0ff2695e8afc2ee73f961claireho struct wpabuf *msg; 4172e615e9896b12236afe0ff2695e8afc2ee73f961claireho 41854dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius switch (wps->state) { 4192e615e9896b12236afe0ff2695e8afc2ee73f961claireho case SEND_M1: 42054dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius msg = wps_build_m1(wps); 4212e615e9896b12236afe0ff2695e8afc2ee73f961claireho *op_code = WSC_MSG; 4222e615e9896b12236afe0ff2695e8afc2ee73f961claireho break; 4232e615e9896b12236afe0ff2695e8afc2ee73f961claireho case SEND_M3: 4242e615e9896b12236afe0ff2695e8afc2ee73f961claireho msg = wps_build_m3(wps); 425b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru *op_code = WSC_MSG; 426c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru break; 427c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru case SEND_M5: 428c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru msg = wps_build_m5(wps); 429c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru *op_code = WSC_MSG; 430c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru break; 431c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru case SEND_M7: 432c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru msg = wps_build_m7(wps); 433c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru *op_code = WSC_MSG; 434c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru break; 435c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru case RECEIVED_M2D: 436c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (wps->wps->ap) { 437b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru msg = wps_build_wsc_nack(wps); 438b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru *op_code = WSC_NACK; 43927f654740f2a26ad62a5c155af9199af9e69b889claireho break; 440c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 441b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru msg = wps_build_wsc_ack(wps); 442b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru *op_code = WSC_ACK; 443b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (msg) { 444b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru /* Another M2/M2D may be received */ 445b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->state = RECV_M2; 446b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 447b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru break; 448b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru case SEND_WSC_NACK: 449b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru msg = wps_build_wsc_nack(wps); 450b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru *op_code = WSC_NACK; 45127f654740f2a26ad62a5c155af9199af9e69b889claireho break; 452b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho case WPS_MSG_DONE: 453b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho msg = wps_build_wsc_done(wps); 454b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho *op_code = WSC_Done; 455b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho break; 456b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho default: 457b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_printf(MSG_DEBUG, "WPS: Unsupported state %d for building " 458b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho "a message", wps->state); 459b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho msg = NULL; 460b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho break; 461b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho } 462b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 463b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho if (*op_code == WSC_MSG && msg) { 464b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho /* Save a copy of the last message for Authenticator derivation 465b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho */ 466b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpabuf_free(wps->last_msg); 467b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wps->last_msg = wpabuf_dup(msg); 468b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho } 469103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius 47027f654740f2a26ad62a5c155af9199af9e69b889claireho return msg; 47154dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius} 47227f654740f2a26ad62a5c155af9199af9e69b889claireho 47327f654740f2a26ad62a5c155af9199af9e69b889claireho 47427f654740f2a26ad62a5c155af9199af9e69b889clairehostatic int wps_process_registrar_nonce(struct wps_data *wps, const u8 *r_nonce) 47527f654740f2a26ad62a5c155af9199af9e69b889claireho{ 47627f654740f2a26ad62a5c155af9199af9e69b889claireho if (r_nonce == NULL) { 477b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: No Registrar Nonce received"); 478b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return -1; 479b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 480b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 481c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru os_memcpy(wps->nonce_r, r_nonce, WPS_NONCE_LEN); 482c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_hexdump(MSG_DEBUG, "WPS: Registrar Nonce", 483c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->nonce_r, WPS_NONCE_LEN); 484c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 485c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return 0; 486c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru} 487c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 488b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 489b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic int wps_process_enrollee_nonce(struct wps_data *wps, const u8 *e_nonce) 490b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 491b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (e_nonce == NULL) { 492b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: No Enrollee Nonce received"); 49327f654740f2a26ad62a5c155af9199af9e69b889claireho return -1; 494c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 495b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 496b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (os_memcmp(wps->nonce_e, e_nonce, WPS_NONCE_LEN) != 0) { 497b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Invalid Enrollee Nonce received"); 498b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return -1; 499b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 500b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 501b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return 0; 502b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 503b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 504b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 50527f654740f2a26ad62a5c155af9199af9e69b889clairehostatic int wps_process_uuid_r(struct wps_data *wps, const u8 *uuid_r) 506b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho{ 507b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho if (uuid_r == NULL) { 508b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_printf(MSG_DEBUG, "WPS: No UUID-R received"); 509b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return -1; 510b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho } 511b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 512b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho os_memcpy(wps->uuid_r, uuid_r, WPS_UUID_LEN); 513b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_hexdump(MSG_DEBUG, "WPS: UUID-R", wps->uuid_r, WPS_UUID_LEN); 514b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 515b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return 0; 516b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho} 517b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 518b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 519b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2clairehostatic int wps_process_pubkey(struct wps_data *wps, const u8 *pk, 520b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho size_t pk_len) 521b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho{ 522b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho if (pk == NULL || pk_len == 0) { 523b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_printf(MSG_DEBUG, "WPS: No Public Key received"); 524b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return -1; 525b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho } 526103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius 52727f654740f2a26ad62a5c155af9199af9e69b889claireho if (wps->peer_pubkey_hash_set) { 52854dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius u8 hash[WPS_HASH_LEN]; 52927f654740f2a26ad62a5c155af9199af9e69b889claireho sha256_vector(1, &pk, &pk_len, hash); 53027f654740f2a26ad62a5c155af9199af9e69b889claireho if (os_memcmp(hash, wps->peer_pubkey_hash, 53127f654740f2a26ad62a5c155af9199af9e69b889claireho WPS_OOB_PUBKEY_HASH_LEN) != 0) { 53227f654740f2a26ad62a5c155af9199af9e69b889claireho wpa_printf(MSG_ERROR, "WPS: Public Key hash mismatch"); 53327f654740f2a26ad62a5c155af9199af9e69b889claireho wpa_hexdump(MSG_DEBUG, "WPS: Received public key", 534b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru pk, pk_len); 535c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_hexdump(MSG_DEBUG, "WPS: Calculated public key " 536c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru "hash", hash, WPS_OOB_PUBKEY_HASH_LEN); 537c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_hexdump(MSG_DEBUG, "WPS: Expected public key hash", 538c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->peer_pubkey_hash, 539c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru WPS_OOB_PUBKEY_HASH_LEN); 540c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->config_error = WPS_CFG_PUBLIC_KEY_HASH_MISMATCH; 541c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return -1; 542b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 543b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 544b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 545b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_free(wps->dh_pubkey_r); 54627f654740f2a26ad62a5c155af9199af9e69b889claireho wps->dh_pubkey_r = wpabuf_alloc_copy(pk, pk_len); 547c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (wps->dh_pubkey_r == NULL) 548b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return -1; 549b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 550b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps_derive_keys(wps) < 0) 551b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return -1; 552b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 553b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return 0; 554b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 555b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 556b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 557b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic int wps_process_r_hash1(struct wps_data *wps, const u8 *r_hash1) 55827f654740f2a26ad62a5c155af9199af9e69b889claireho{ 559b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho if (r_hash1 == NULL) { 560b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_printf(MSG_DEBUG, "WPS: No R-Hash1 received"); 561b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return -1; 562b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho } 563b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 564b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho os_memcpy(wps->peer_hash1, r_hash1, WPS_HASH_LEN); 565b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_hexdump(MSG_DEBUG, "WPS: R-Hash1", wps->peer_hash1, WPS_HASH_LEN); 566b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 567b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return 0; 568b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho} 569b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 570b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 571b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2clairehostatic int wps_process_r_hash2(struct wps_data *wps, const u8 *r_hash2) 572b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho{ 573b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho if (r_hash2 == NULL) { 574b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_printf(MSG_DEBUG, "WPS: No R-Hash2 received"); 575103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius return -1; 57627f654740f2a26ad62a5c155af9199af9e69b889claireho } 57754dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius 57827f654740f2a26ad62a5c155af9199af9e69b889claireho os_memcpy(wps->peer_hash2, r_hash2, WPS_HASH_LEN); 57927f654740f2a26ad62a5c155af9199af9e69b889claireho wpa_hexdump(MSG_DEBUG, "WPS: R-Hash2", wps->peer_hash2, WPS_HASH_LEN); 58027f654740f2a26ad62a5c155af9199af9e69b889claireho 58127f654740f2a26ad62a5c155af9199af9e69b889claireho return 0; 58227f654740f2a26ad62a5c155af9199af9e69b889claireho} 583c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 584c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 585c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Querustatic int wps_process_r_snonce1(struct wps_data *wps, const u8 *r_snonce1) 586c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru{ 587b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru u8 hash[SHA256_MAC_LEN]; 588b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru const u8 *addr[4]; 589b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru size_t len[4]; 590b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 591b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (r_snonce1 == NULL) { 592b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: No R-SNonce1 received"); 593b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return -1; 594b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 595b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 596b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_hexdump_key(MSG_DEBUG, "WPS: R-SNonce1", r_snonce1, 597b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru WPS_SECRET_NONCE_LEN); 598b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 599b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru /* R-Hash1 = HMAC_AuthKey(R-S1 || PSK1 || PK_E || PK_R) */ 600b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru addr[0] = r_snonce1; 601b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru len[0] = WPS_SECRET_NONCE_LEN; 602b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru addr[1] = wps->psk1; 603b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru len[1] = WPS_PSK_LEN; 604b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru addr[2] = wpabuf_head(wps->dh_pubkey_e); 605b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru len[2] = wpabuf_len(wps->dh_pubkey_e); 606b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru addr[3] = wpabuf_head(wps->dh_pubkey_r); 607b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru len[3] = wpabuf_len(wps->dh_pubkey_r); 608b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru hmac_sha256_vector(wps->authkey, WPS_AUTHKEY_LEN, 4, addr, len, hash); 609b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 610b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (os_memcmp(wps->peer_hash1, hash, WPS_HASH_LEN) != 0) { 611b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: R-Hash1 derived from R-S1 does " 612b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru "not match with the pre-committed value"); 613b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->config_error = WPS_CFG_DEV_PASSWORD_AUTH_FAILURE; 614b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_pwd_auth_fail_event(wps->wps, 1, 1, wps->peer_dev.mac_addr); 615b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return -1; 616b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 617b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 618b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Registrar proved knowledge of the first " 619b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru "half of the device password"); 620b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 621b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return 0; 622b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 623b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 624b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 625b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic int wps_process_r_snonce2(struct wps_data *wps, const u8 *r_snonce2) 626b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 627b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru u8 hash[SHA256_MAC_LEN]; 628b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru const u8 *addr[4]; 629b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru size_t len[4]; 630b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 631b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (r_snonce2 == NULL) { 632b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: No R-SNonce2 received"); 63327f654740f2a26ad62a5c155af9199af9e69b889claireho return -1; 63427f654740f2a26ad62a5c155af9199af9e69b889claireho } 63527f654740f2a26ad62a5c155af9199af9e69b889claireho 63627f654740f2a26ad62a5c155af9199af9e69b889claireho wpa_hexdump_key(MSG_DEBUG, "WPS: R-SNonce2", r_snonce2, 63727f654740f2a26ad62a5c155af9199af9e69b889claireho WPS_SECRET_NONCE_LEN); 63827f654740f2a26ad62a5c155af9199af9e69b889claireho 63927f654740f2a26ad62a5c155af9199af9e69b889claireho /* R-Hash2 = HMAC_AuthKey(R-S2 || PSK2 || PK_E || PK_R) */ 64027f654740f2a26ad62a5c155af9199af9e69b889claireho addr[0] = r_snonce2; 64127f654740f2a26ad62a5c155af9199af9e69b889claireho len[0] = WPS_SECRET_NONCE_LEN; 64227f654740f2a26ad62a5c155af9199af9e69b889claireho addr[1] = wps->psk2; 64327f654740f2a26ad62a5c155af9199af9e69b889claireho len[1] = WPS_PSK_LEN; 64427f654740f2a26ad62a5c155af9199af9e69b889claireho addr[2] = wpabuf_head(wps->dh_pubkey_e); 64527f654740f2a26ad62a5c155af9199af9e69b889claireho len[2] = wpabuf_len(wps->dh_pubkey_e); 64627f654740f2a26ad62a5c155af9199af9e69b889claireho addr[3] = wpabuf_head(wps->dh_pubkey_r); 64727f654740f2a26ad62a5c155af9199af9e69b889claireho len[3] = wpabuf_len(wps->dh_pubkey_r); 64827f654740f2a26ad62a5c155af9199af9e69b889claireho hmac_sha256_vector(wps->authkey, WPS_AUTHKEY_LEN, 4, addr, len, hash); 64927f654740f2a26ad62a5c155af9199af9e69b889claireho 65027f654740f2a26ad62a5c155af9199af9e69b889claireho if (os_memcmp(wps->peer_hash2, hash, WPS_HASH_LEN) != 0) { 65127f654740f2a26ad62a5c155af9199af9e69b889claireho wpa_printf(MSG_DEBUG, "WPS: R-Hash2 derived from R-S2 does " 65227f654740f2a26ad62a5c155af9199af9e69b889claireho "not match with the pre-committed value"); 653103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius wps->config_error = WPS_CFG_DEV_PASSWORD_AUTH_FAILURE; 65427f654740f2a26ad62a5c155af9199af9e69b889claireho wps_pwd_auth_fail_event(wps->wps, 1, 2, wps->peer_dev.mac_addr); 65554dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius return -1; 65627f654740f2a26ad62a5c155af9199af9e69b889claireho } 65727f654740f2a26ad62a5c155af9199af9e69b889claireho 65827f654740f2a26ad62a5c155af9199af9e69b889claireho wpa_printf(MSG_DEBUG, "WPS: Registrar proved knowledge of the second " 65927f654740f2a26ad62a5c155af9199af9e69b889claireho "half of the device password"); 66027f654740f2a26ad62a5c155af9199af9e69b889claireho 66127f654740f2a26ad62a5c155af9199af9e69b889claireho return 0; 662103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius} 66350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 66450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 66550294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehostatic int wps_process_cred_e(struct wps_data *wps, const u8 *cred, 66650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho size_t cred_len, int wps2) 66750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho{ 66850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho struct wps_parse_attr attr; 66950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho struct wpabuf msg; 67050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho int ret = 0; 67150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 67250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_printf(MSG_DEBUG, "WPS: Received Credential"); 67350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho os_memset(&wps->cred, 0, sizeof(wps->cred)); 67450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpabuf_set(&msg, cred, cred_len); 67550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (wps_parse_msg(&msg, &attr) < 0 || 67650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_process_cred(&attr, &wps->cred)) 67750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return -1; 67850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 67950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (os_memcmp(wps->cred.mac_addr, wps->wps->dev.mac_addr, ETH_ALEN) != 68050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 0) { 68127f654740f2a26ad62a5c155af9199af9e69b889claireho wpa_printf(MSG_DEBUG, "WPS: MAC Address in the Credential (" 68250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho MACSTR ") does not match with own address (" MACSTR 68350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho ")", MAC2STR(wps->cred.mac_addr), 68450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho MAC2STR(wps->wps->dev.mac_addr)); 685103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius /* 68650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho * In theory, this could be consider fatal error, but there are 687b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * number of deployed implementations using other address here 688b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * due to unclarity in the specification. For interoperability 689b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * reasons, allow this to be processed since we do not really 690b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * use the MAC Address information for anything. 691b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru */ 692b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#ifdef CONFIG_WPS_STRICT 693b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps2) { 694b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_INFO, "WPS: Do not accept incorrect " 695b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru "MAC Address in AP Settings"); 696b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return -1; 69727f654740f2a26ad62a5c155af9199af9e69b889claireho } 698b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#endif /* CONFIG_WPS_STRICT */ 699b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 700b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 701b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#ifdef CONFIG_WPS2 702b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (!(wps->cred.encr_type & 703b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru (WPS_ENCR_NONE | WPS_ENCR_TKIP | WPS_ENCR_AES))) { 704b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps->cred.encr_type & WPS_ENCR_WEP) { 705b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_INFO, "WPS: Reject Credential " 706b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru "due to WEP configuration"); 70727f654740f2a26ad62a5c155af9199af9e69b889claireho wps->error_indication = WPS_EI_SECURITY_WEP_PROHIBITED; 708b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return -2; 709b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho } 710b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 711b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_printf(MSG_INFO, "WPS: Reject Credential due to " 712b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho "invalid encr_type 0x%x", wps->cred.encr_type); 713b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return -1; 714b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho } 715b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho#endif /* CONFIG_WPS2 */ 716b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 717b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho if (wps->wps->cred_cb) { 718b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wps->cred.cred_attr = cred - 4; 719103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius wps->cred.cred_attr_len = cred_len + 4; 72027f654740f2a26ad62a5c155af9199af9e69b889claireho ret = wps->wps->cred_cb(wps->wps->cb_ctx, &wps->cred); 72154dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius wps->cred.cred_attr = NULL; 72227f654740f2a26ad62a5c155af9199af9e69b889claireho wps->cred.cred_attr_len = 0; 72327f654740f2a26ad62a5c155af9199af9e69b889claireho } 72427f654740f2a26ad62a5c155af9199af9e69b889claireho 72527f654740f2a26ad62a5c155af9199af9e69b889claireho return ret; 72627f654740f2a26ad62a5c155af9199af9e69b889claireho} 727b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 728b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 729b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic int wps_process_creds(struct wps_data *wps, const u8 *cred[], 730b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru size_t cred_len[], size_t num_cred, int wps2) 731b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 732b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru size_t i; 733b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru int ok = 0; 734b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 735b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps->wps->ap) 73627f654740f2a26ad62a5c155af9199af9e69b889claireho return 0; 737b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 738b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (num_cred == 0) { 739b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: No Credential attributes " 740b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru "received"); 741b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return -1; 742b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 743b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 744b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru for (i = 0; i < num_cred; i++) { 74527f654740f2a26ad62a5c155af9199af9e69b889claireho int res; 746b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho res = wps_process_cred_e(wps, cred[i], cred_len[i], wps2); 747b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho if (res == 0) 748b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho ok++; 749b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho else if (res == -2) 750b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_printf(MSG_DEBUG, "WPS: WEP credential skipped"); 751b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho else 752b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return -1; 753b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho } 754b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 755b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho if (ok == 0) { 756103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius wpa_printf(MSG_DEBUG, "WPS: No valid Credential attribute " 75727f654740f2a26ad62a5c155af9199af9e69b889claireho "received"); 75854dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius return -1; 75927f654740f2a26ad62a5c155af9199af9e69b889claireho } 76027f654740f2a26ad62a5c155af9199af9e69b889claireho 76127f654740f2a26ad62a5c155af9199af9e69b889claireho return 0; 76227f654740f2a26ad62a5c155af9199af9e69b889claireho} 76327f654740f2a26ad62a5c155af9199af9e69b889claireho 764b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 765b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic int wps_process_ap_settings_e(struct wps_data *wps, 766b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru struct wps_parse_attr *attr, 767c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru struct wpabuf *attrs, int wps2) 768c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru{ 769b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru struct wps_credential cred; 770b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 77127f654740f2a26ad62a5c155af9199af9e69b889claireho if (!wps->wps->ap) 772b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return 0; 773b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 774b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps_process_ap_settings(attr, &cred) < 0) 775b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return -1; 776b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 777b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_INFO, "WPS: Received new AP configuration from " 778b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru "Registrar"); 779b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 780103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius if (os_memcmp(cred.mac_addr, wps->wps->dev.mac_addr, ETH_ALEN) != 78127f654740f2a26ad62a5c155af9199af9e69b889claireho 0) { 782b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_printf(MSG_DEBUG, "WPS: MAC Address in the AP Settings (" 783b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho MACSTR ") does not match with own address (" MACSTR 784b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho ")", MAC2STR(cred.mac_addr), 785b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho MAC2STR(wps->wps->dev.mac_addr)); 786b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho /* 787b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho * In theory, this could be consider fatal error, but there are 788b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho * number of deployed implementations using other address here 789b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho * due to unclarity in the specification. For interoperability 790b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho * reasons, allow this to be processed since we do not really 791b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho * use the MAC Address information for anything. 792b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho */ 793103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius#ifdef CONFIG_WPS_STRICT 79427f654740f2a26ad62a5c155af9199af9e69b889claireho if (wps2) { 79554dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius wpa_printf(MSG_INFO, "WPS: Do not accept incorrect " 79627f654740f2a26ad62a5c155af9199af9e69b889claireho "MAC Address in AP Settings"); 79727f654740f2a26ad62a5c155af9199af9e69b889claireho return -1; 79827f654740f2a26ad62a5c155af9199af9e69b889claireho } 79927f654740f2a26ad62a5c155af9199af9e69b889claireho#endif /* CONFIG_WPS_STRICT */ 800b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho } 801b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 802c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru#ifdef CONFIG_WPS2 803c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (!(cred.encr_type & (WPS_ENCR_NONE | WPS_ENCR_TKIP | WPS_ENCR_AES))) 804c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru { 805c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (cred.encr_type & WPS_ENCR_WEP) { 806c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_INFO, "WPS: Reject new AP settings " 807c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru "due to WEP configuration"); 808c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->error_indication = WPS_EI_SECURITY_WEP_PROHIBITED; 809c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return -1; 810c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 811c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 812c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_INFO, "WPS: Reject new AP settings due to " 813c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru "invalid encr_type 0x%x", cred.encr_type); 814c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return -1; 81527f654740f2a26ad62a5c155af9199af9e69b889claireho } 81627f654740f2a26ad62a5c155af9199af9e69b889claireho#endif /* CONFIG_WPS2 */ 817c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 818b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#ifdef CONFIG_WPS_STRICT 819c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (wps2) { 82050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if ((cred.encr_type & (WPS_ENCR_TKIP | WPS_ENCR_AES)) == 821c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru WPS_ENCR_TKIP || 822c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru (cred.auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) == 823c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru WPS_AUTH_WPAPSK) { 824c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_INFO, "WPS-STRICT: Invalid WSC 2.0 " 825c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru "AP Settings: WPA-Personal/TKIP only"); 826c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->error_indication = 827b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED; 828b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return -1; 829b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho } 830b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho } 831b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho#endif /* CONFIG_WPS_STRICT */ 832b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 833b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho#ifdef CONFIG_WPS2 834b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho if ((cred.encr_type & (WPS_ENCR_TKIP | WPS_ENCR_AES)) == WPS_ENCR_TKIP) 835b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho { 836b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_printf(MSG_DEBUG, "WPS: Upgrade encr_type TKIP -> " 837b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho "TKIP+AES"); 838b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho cred.encr_type |= WPS_ENCR_AES; 839b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho } 840b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 841b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho if ((cred.auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) == 842b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho WPS_AUTH_WPAPSK) { 843b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_printf(MSG_DEBUG, "WPS: Upgrade auth_type WPAPSK -> " 844b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho "WPAPSK+WPA2PSK"); 845103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius cred.auth_type |= WPS_AUTH_WPA2PSK; 84627f654740f2a26ad62a5c155af9199af9e69b889claireho } 84754dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius#endif /* CONFIG_WPS2 */ 84827f654740f2a26ad62a5c155af9199af9e69b889claireho 84927f654740f2a26ad62a5c155af9199af9e69b889claireho if (wps->wps->cred_cb) { 85027f654740f2a26ad62a5c155af9199af9e69b889claireho cred.cred_attr = wpabuf_head(attrs); 85127f654740f2a26ad62a5c155af9199af9e69b889claireho cred.cred_attr_len = wpabuf_len(attrs); 85227f654740f2a26ad62a5c155af9199af9e69b889claireho wps->wps->cred_cb(wps->wps->cb_ctx, &cred); 85327f654740f2a26ad62a5c155af9199af9e69b889claireho } 854b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 855b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return 0; 856b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho} 857b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 858b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 859b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2clairehostatic int wps_process_dev_pw_id(struct wps_data *wps, const u8 *dev_pw_id) 860b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho{ 861b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho u16 id; 862b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 863b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho if (dev_pw_id == NULL) { 864b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_printf(MSG_DEBUG, "WPS: Device Password ID"); 865103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius return -1; 86627f654740f2a26ad62a5c155af9199af9e69b889claireho } 86754dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius 86827f654740f2a26ad62a5c155af9199af9e69b889claireho id = WPA_GET_BE16(dev_pw_id); 86927f654740f2a26ad62a5c155af9199af9e69b889claireho if (wps->dev_pw_id == id) { 87027f654740f2a26ad62a5c155af9199af9e69b889claireho wpa_printf(MSG_DEBUG, "WPS: Device Password ID %u", id); 87127f654740f2a26ad62a5c155af9199af9e69b889claireho return 0; 87227f654740f2a26ad62a5c155af9199af9e69b889claireho } 87327f654740f2a26ad62a5c155af9199af9e69b889claireho 87427f654740f2a26ad62a5c155af9199af9e69b889claireho#ifdef CONFIG_P2P 875c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if ((id == DEV_PW_DEFAULT && 876c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->dev_pw_id == DEV_PW_REGISTRAR_SPECIFIED) || 877c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru (id == DEV_PW_REGISTRAR_SPECIFIED && 878c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->dev_pw_id == DEV_PW_DEFAULT)) { 879c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru /* 88027f654740f2a26ad62a5c155af9199af9e69b889claireho * Common P2P use cases indicate whether the PIN is from the 881b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * client or GO using Device Password Id in M1/M2 in a way that 882c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru * does not look fully compliant with WSC specification. Anyway, 88350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho * this is deployed and needs to be allowed, so ignore changes 884c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru * between Registrar-Specified and Default PIN. 885c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru */ 886c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Allow PIN Device Password ID " 88727f654740f2a26ad62a5c155af9199af9e69b889claireho "change"); 888b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return 0; 889b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho } 890b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho#endif /* CONFIG_P2P */ 891b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 892b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_printf(MSG_DEBUG, "WPS: Registrar trying to change Device Password " 893b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho "ID from %u to %u", wps->dev_pw_id, id); 894b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 895103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius if (wps->dev_pw_id == DEV_PW_PUSHBUTTON && id == DEV_PW_DEFAULT) { 89627f654740f2a26ad62a5c155af9199af9e69b889claireho wpa_printf(MSG_DEBUG, 89754dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius "WPS: Workaround - ignore PBC-to-PIN change"); 89827f654740f2a26ad62a5c155af9199af9e69b889claireho return 0; 89927f654740f2a26ad62a5c155af9199af9e69b889claireho } 900c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 901c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (wps->alt_dev_password && wps->alt_dev_pw_id == id) { 902c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Found a matching Device Password"); 903c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru os_free(wps->dev_password); 904c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->dev_pw_id = wps->alt_dev_pw_id; 905c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->dev_password = wps->alt_dev_password; 906c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->dev_password_len = wps->alt_dev_password_len; 907c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->alt_dev_password = NULL; 90827f654740f2a26ad62a5c155af9199af9e69b889claireho wps->alt_dev_password_len = 0; 909b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru return 0; 910c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 91150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 912c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return -1; 913c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru} 914c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 915c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 916b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2clairehostatic enum wps_process_res wps_process_m2(struct wps_data *wps, 917b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho const struct wpabuf *msg, 918b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho struct wps_parse_attr *attr) 919b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho{ 920b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_printf(MSG_DEBUG, "WPS: Received M2"); 921b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 922b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho if (wps->state != RECV_M2) { 923b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wpa_printf(MSG_DEBUG, "WPS: Unexpected state (%d) for " 924103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius "receiving M2", wps->state); 92527f654740f2a26ad62a5c155af9199af9e69b889claireho wps->state = SEND_WSC_NACK; 92654dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius return WPS_CONTINUE; 92727f654740f2a26ad62a5c155af9199af9e69b889claireho } 92827f654740f2a26ad62a5c155af9199af9e69b889claireho 92927f654740f2a26ad62a5c155af9199af9e69b889claireho if (wps_process_registrar_nonce(wps, attr->registrar_nonce) || 93027f654740f2a26ad62a5c155af9199af9e69b889claireho wps_process_enrollee_nonce(wps, attr->enrollee_nonce) || 931c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps_process_uuid_r(wps, attr->uuid_r) || 932c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps_process_dev_pw_id(wps, attr->dev_password_id)) { 933c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->state = SEND_WSC_NACK; 934c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return WPS_CONTINUE; 935c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 936c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 937c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru /* 938b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Stop here on an AP as an Enrollee if AP Setup is locked unless the 939c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru * special locked mode is used to allow protocol run up to M7 in order 94050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho * to support external Registrars that only learn the current AP 941c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru * configuration without changing it. 942c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru */ 943c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (wps->wps->ap && 944c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru ((wps->wps->ap_setup_locked && wps->wps->ap_setup_locked != 2) || 945c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->dev_password == NULL)) { 946c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: AP Setup is locked - refuse " 947c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru "registration of a new Registrar"); 948c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->config_error = WPS_CFG_SETUP_LOCKED; 949c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->state = SEND_WSC_NACK; 950c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return WPS_CONTINUE; 951c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 952c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 953c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (wps_process_pubkey(wps, attr->public_key, attr->public_key_len) || 954c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps_process_authenticator(wps, attr->authenticator, msg) || 955c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps_process_device_attrs(&wps->peer_dev, attr)) { 956c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->state = SEND_WSC_NACK; 957c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return WPS_CONTINUE; 958c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 959c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 960c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru#ifdef CONFIG_WPS_NFC 961c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (wps->peer_pubkey_hash_set) { 962b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru struct wpabuf *decrypted; 963c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru struct wps_parse_attr eattr; 96450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 965c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru decrypted = wps_decrypt_encr_settings(wps, attr->encr_settings, 966c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru attr->encr_settings_len); 967c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (decrypted == NULL) { 968c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Failed to decrypt " 969c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru "Encrypted Settings attribute"); 970c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->state = SEND_WSC_NACK; 971c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return WPS_CONTINUE; 972c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 973c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 974c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Processing decrypted Encrypted " 975c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru "Settings attribute"); 976c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (wps_parse_msg(decrypted, &eattr) < 0 || 977b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru wps_process_key_wrap_auth(wps, decrypted, 978c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru eattr.key_wrap_auth) || 97950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_process_creds(wps, eattr.cred, eattr.cred_len, 980c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru eattr.num_cred, attr->version2 != NULL)) { 981c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpabuf_free(decrypted); 982c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->state = SEND_WSC_NACK; 983c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return WPS_CONTINUE; 984c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 985c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpabuf_free(decrypted); 986c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 987c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->state = WPS_MSG_DONE; 988c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return WPS_CONTINUE; 989c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 990c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru#endif /* CONFIG_WPS_NFC */ 991c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 992c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->state = SEND_M3; 993c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return WPS_CONTINUE; 994c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru} 995b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 996c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 99750294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehostatic enum wps_process_res wps_process_m2d(struct wps_data *wps, 998c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru struct wps_parse_attr *attr) 999c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru{ 1000c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Received M2D"); 1001c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 1002c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (wps->state != RECV_M2) { 1003c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Unexpected state (%d) for " 1004c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru "receiving M2D", wps->state); 1005c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->state = SEND_WSC_NACK; 1006c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return WPS_CONTINUE; 1007c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 1008c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 1009c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_hexdump_ascii(MSG_DEBUG, "WPS: Manufacturer", 1010b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru attr->manufacturer, attr->manufacturer_len); 1011c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_hexdump_ascii(MSG_DEBUG, "WPS: Model Name", 101250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho attr->model_name, attr->model_name_len); 1013c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_hexdump_ascii(MSG_DEBUG, "WPS: Model Number", 1014c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru attr->model_number, attr->model_number_len); 1015c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_hexdump_ascii(MSG_DEBUG, "WPS: Serial Number", 1016c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru attr->serial_number, attr->serial_number_len); 1017c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_hexdump_ascii(MSG_DEBUG, "WPS: Device Name", 1018c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru attr->dev_name, attr->dev_name_len); 1019c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 1020c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (wps->wps->event_cb) { 1021c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru union wps_event_data data; 1022c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru struct wps_event_m2d *m2d = &data.m2d; 1023c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru os_memset(&data, 0, sizeof(data)); 1024c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (attr->config_methods) 1025b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru m2d->config_methods = 1026c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru WPA_GET_BE16(attr->config_methods); 102750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho m2d->manufacturer = attr->manufacturer; 1028c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru m2d->manufacturer_len = attr->manufacturer_len; 1029c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru m2d->model_name = attr->model_name; 1030c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru m2d->model_name_len = attr->model_name_len; 1031c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru m2d->model_number = attr->model_number; 1032c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru m2d->model_number_len = attr->model_number_len; 1033c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru m2d->serial_number = attr->serial_number; 1034b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru m2d->serial_number_len = attr->serial_number_len; 1035b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru m2d->dev_name = attr->dev_name; 1036b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru m2d->dev_name_len = attr->dev_name_len; 1037b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru m2d->primary_dev_type = attr->primary_dev_type; 1038b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (attr->config_error) 1039b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru m2d->config_error = 1040b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru WPA_GET_BE16(attr->config_error); 1041b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (attr->dev_password_id) 1042b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru m2d->dev_password_id = 1043b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru WPA_GET_BE16(attr->dev_password_id); 1044b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->wps->event_cb(wps->wps->cb_ctx, WPS_EV_M2D, &data); 1045b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 1046b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1047b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->state = RECEIVED_M2D; 1048b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_CONTINUE; 1049b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 1050b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1051b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 1052b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic enum wps_process_res wps_process_m4(struct wps_data *wps, 1053b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru const struct wpabuf *msg, 1054b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru struct wps_parse_attr *attr) 1055b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 1056b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru struct wpabuf *decrypted; 1057b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru struct wps_parse_attr eattr; 1058b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1059b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Received M4"); 1060b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1061b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps->state != RECV_M4) { 1062b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Unexpected state (%d) for " 1063b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru "receiving M4", wps->state); 1064b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->state = SEND_WSC_NACK; 1065b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_CONTINUE; 1066b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 106750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 106850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (wps_process_enrollee_nonce(wps, attr->enrollee_nonce) || 106950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_process_authenticator(wps, attr->authenticator, msg) || 107050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_process_r_hash1(wps, attr->r_hash1) || 107150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_process_r_hash2(wps, attr->r_hash2)) { 107250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->state = SEND_WSC_NACK; 107350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_CONTINUE; 107450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 107550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 107650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho decrypted = wps_decrypt_encr_settings(wps, attr->encr_settings, 107750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho attr->encr_settings_len); 107850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (decrypted == NULL) { 107950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_printf(MSG_DEBUG, "WPS: Failed to decrypted Encrypted " 108050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho "Settings attribute"); 108150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->state = SEND_WSC_NACK; 108250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_CONTINUE; 108350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 108450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 108550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (wps_validate_m4_encr(decrypted, attr->version2 != NULL) < 0) { 1086103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius wpabuf_free(decrypted); 108750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->state = SEND_WSC_NACK; 108854dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius return WPS_CONTINUE; 108950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 109050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 109150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_printf(MSG_DEBUG, "WPS: Processing decrypted Encrypted Settings " 109250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho "attribute"); 1093b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps_parse_msg(decrypted, &eattr) < 0 || 1094b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_process_key_wrap_auth(wps, decrypted, eattr.key_wrap_auth) || 1095b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_process_r_snonce1(wps, eattr.r_snonce1)) { 1096b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_free(decrypted); 1097b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->state = SEND_WSC_NACK; 1098b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_CONTINUE; 1099b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 1100b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_free(decrypted); 1101b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1102b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->state = SEND_M5; 1103b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_CONTINUE; 1104b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 1105b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1106b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1107b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic enum wps_process_res wps_process_m6(struct wps_data *wps, 1108b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru const struct wpabuf *msg, 1109b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru struct wps_parse_attr *attr) 1110b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho{ 1111b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru struct wpabuf *decrypted; 1112b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru struct wps_parse_attr eattr; 1113b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1114b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Received M6"); 1115b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1116b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps->state != RECV_M6) { 1117b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Unexpected state (%d) for " 1118b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru "receiving M6", wps->state); 1119b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->state = SEND_WSC_NACK; 1120b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_CONTINUE; 1121b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 1122b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1123b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps_process_enrollee_nonce(wps, attr->enrollee_nonce) || 1124b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_process_authenticator(wps, attr->authenticator, msg)) { 1125b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->state = SEND_WSC_NACK; 112650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_CONTINUE; 112750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 112850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 112950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho decrypted = wps_decrypt_encr_settings(wps, attr->encr_settings, 113050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho attr->encr_settings_len); 113150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (decrypted == NULL) { 113250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_printf(MSG_DEBUG, "WPS: Failed to decrypted Encrypted " 113350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho "Settings attribute"); 113450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->state = SEND_WSC_NACK; 113550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_CONTINUE; 113650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 113750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 113850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (wps_validate_m6_encr(decrypted, attr->version2 != NULL) < 0) { 113950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpabuf_free(decrypted); 114050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->state = SEND_WSC_NACK; 114150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_CONTINUE; 114250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 114350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 114450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_printf(MSG_DEBUG, "WPS: Processing decrypted Encrypted Settings " 1145103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius "attribute"); 114650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (wps_parse_msg(decrypted, &eattr) < 0 || 114754dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius wps_process_key_wrap_auth(wps, decrypted, eattr.key_wrap_auth) || 114850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_process_r_snonce2(wps, eattr.r_snonce2)) { 114950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpabuf_free(decrypted); 115050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->state = SEND_WSC_NACK; 115150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_CONTINUE; 115250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 1153b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_free(decrypted); 1154b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1155b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps->wps->ap) 1156b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->wps->event_cb(wps->wps->cb_ctx, WPS_EV_AP_PIN_SUCCESS, 1157b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru NULL); 1158b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1159b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->state = SEND_M7; 1160b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_CONTINUE; 1161b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 1162b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1163b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1164b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic enum wps_process_res wps_process_m8(struct wps_data *wps, 1165b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru const struct wpabuf *msg, 1166b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru struct wps_parse_attr *attr) 1167b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 1168b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru struct wpabuf *decrypted; 1169b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru struct wps_parse_attr eattr; 1170b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1171b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Received M8"); 1172b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1173b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps->state != RECV_M8) { 1174b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Unexpected state (%d) for " 1175b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru "receiving M8", wps->state); 1176b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->state = SEND_WSC_NACK; 1177b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_CONTINUE; 1178b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 1179b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1180b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps_process_enrollee_nonce(wps, attr->enrollee_nonce) || 1181b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_process_authenticator(wps, attr->authenticator, msg)) { 1182b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->state = SEND_WSC_NACK; 1183b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_CONTINUE; 1184b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 1185b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1186b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps->wps->ap && wps->wps->ap_setup_locked) { 1187b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru /* 1188b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * Stop here if special ap_setup_locked == 2 mode allowed the 1189b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * protocol to continue beyond M2. This allows ER to learn the 1190b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * current AP settings without changing them. 1191b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru */ 1192b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: AP Setup is locked - refuse " 1193b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru "registration of a new Registrar"); 1194b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->config_error = WPS_CFG_SETUP_LOCKED; 1195b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->state = SEND_WSC_NACK; 1196b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_CONTINUE; 1197b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 1198b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1199b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru decrypted = wps_decrypt_encr_settings(wps, attr->encr_settings, 1200b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru attr->encr_settings_len); 120150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (decrypted == NULL) { 120250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_printf(MSG_DEBUG, "WPS: Failed to decrypted Encrypted " 120350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho "Settings attribute"); 120450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->state = SEND_WSC_NACK; 120550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_CONTINUE; 120650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 120750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 120850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (wps_validate_m8_encr(decrypted, wps->wps->ap, 120950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho attr->version2 != NULL) < 0) { 121050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpabuf_free(decrypted); 121150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->state = SEND_WSC_NACK; 121250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_CONTINUE; 121350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 121450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 121550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_printf(MSG_DEBUG, "WPS: Processing decrypted Encrypted Settings " 121650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho "attribute"); 121750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (wps_parse_msg(decrypted, &eattr) < 0 || 121850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_process_key_wrap_auth(wps, decrypted, eattr.key_wrap_auth) || 121950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_process_creds(wps, eattr.cred, eattr.cred_len, 122050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho eattr.num_cred, attr->version2 != NULL) || 122150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_process_ap_settings_e(wps, &eattr, decrypted, 122250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho attr->version2 != NULL)) { 122350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpabuf_free(decrypted); 122450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->state = SEND_WSC_NACK; 122550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_CONTINUE; 122650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 1227103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius wpabuf_free(decrypted); 122850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 122954dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius wps->state = WPS_MSG_DONE; 123050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_CONTINUE; 123150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho} 123250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 123350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 1234b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic enum wps_process_res wps_process_wsc_msg(struct wps_data *wps, 1235b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru const struct wpabuf *msg) 1236b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 1237b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru struct wps_parse_attr attr; 1238b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru enum wps_process_res ret = WPS_CONTINUE; 1239b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1240b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Received WSC_MSG"); 1241b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1242b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps_parse_msg(msg, &attr) < 0) 1243b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_FAILURE; 1244b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1245b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (attr.enrollee_nonce == NULL || 1246b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru os_memcmp(wps->nonce_e, attr.enrollee_nonce, WPS_NONCE_LEN) != 0) { 1247b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Mismatch in enrollee nonce"); 1248b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_FAILURE; 1249b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 1250b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1251b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (attr.msg_type == NULL) { 1252b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: No Message Type attribute"); 1253b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->state = SEND_WSC_NACK; 1254b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_CONTINUE; 1255b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 1256b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1257b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru switch (*attr.msg_type) { 1258b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru case WPS_M2: 1259b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps_validate_m2(msg) < 0) 1260b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_FAILURE; 1261b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru ret = wps_process_m2(wps, msg, &attr); 1262b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru break; 1263b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru case WPS_M2D: 1264b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps_validate_m2d(msg) < 0) 126550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_FAILURE; 126650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho ret = wps_process_m2d(wps, &attr); 126750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho break; 126850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho case WPS_M4: 126950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (wps_validate_m4(msg) < 0) 127050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_FAILURE; 127150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho ret = wps_process_m4(wps, msg, &attr); 127250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (ret == WPS_FAILURE || wps->state == SEND_WSC_NACK) 127350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_fail_event(wps->wps, WPS_M4, wps->config_error, 127450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->error_indication, 127550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->peer_dev.mac_addr); 1276b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho break; 1277b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho case WPS_M6: 1278b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho if (wps_validate_m6(msg) < 0) 127950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_FAILURE; 128050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho ret = wps_process_m6(wps, msg, &attr); 1281103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius if (ret == WPS_FAILURE || wps->state == SEND_WSC_NACK) 128250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_fail_event(wps->wps, WPS_M6, wps->config_error, 128354dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius wps->error_indication, 128450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->peer_dev.mac_addr); 128527f654740f2a26ad62a5c155af9199af9e69b889claireho break; 128627f654740f2a26ad62a5c155af9199af9e69b889claireho case WPS_M8: 1287b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps_validate_m8(msg) < 0) 1288b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_FAILURE; 1289b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru ret = wps_process_m8(wps, msg, &attr); 1290b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (ret == WPS_FAILURE || wps->state == SEND_WSC_NACK) 1291b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps_fail_event(wps->wps, WPS_M8, wps->config_error, 1292b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->error_indication, 1293b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wps->peer_dev.mac_addr); 1294b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru break; 129550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho default: 1296b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Unsupported Message Type %d", 1297b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru *attr.msg_type); 1298b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho return WPS_FAILURE; 1299b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho } 1300b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho 1301b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho /* 1302b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho * Save a copy of the last message for Authenticator derivation if we 1303b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho * are continuing. However, skip M2D since it is not authenticated and 1304b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho * neither is the ACK/NACK response frame. This allows the possibly 1305b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho * following M2 to be processed correctly by using the previously sent 1306b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho * M1 in Authenticator derivation. 1307b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho */ 1308b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho if (ret == WPS_CONTINUE && *attr.msg_type != WPS_M2D) { 1309b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho /* Save a copy of the last message for Authenticator derivation 1310b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru */ 1311b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpabuf_free(wps->last_msg); 1312b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wps->last_msg = wpabuf_dup(msg); 1313b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 1314b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1315b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return ret; 1316b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 1317b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1318b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1319b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querustatic enum wps_process_res wps_process_wsc_ack(struct wps_data *wps, 1320b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru const struct wpabuf *msg) 1321b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 1322b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru struct wps_parse_attr attr; 1323b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1324b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Received WSC_ACK"); 1325b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1326b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (wps_parse_msg(msg, &attr) < 0) 1327b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_FAILURE; 1328b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1329b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (attr.msg_type == NULL) { 1330b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: No Message Type attribute"); 1331b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_FAILURE; 1332b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 1333b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1334b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (*attr.msg_type != WPS_WSC_ACK) { 1335b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Invalid Message Type %d", 1336b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru *attr.msg_type); 1337b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_FAILURE; 1338b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 1339b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1340b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (attr.registrar_nonce == NULL || 1341b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru os_memcmp(wps->nonce_r, attr.registrar_nonce, WPS_NONCE_LEN) != 0) 1342b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru { 1343b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Mismatch in registrar nonce"); 1344b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return WPS_FAILURE; 1345b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 1346b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 1347b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (attr.enrollee_nonce == NULL || 134850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho os_memcmp(wps->nonce_e, attr.enrollee_nonce, WPS_NONCE_LEN) != 0) { 134950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_printf(MSG_DEBUG, "WPS: Mismatch in enrollee nonce"); 135050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_FAILURE; 135150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 135250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 135350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (wps->state == RECV_ACK && wps->wps->ap) { 135450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_printf(MSG_DEBUG, "WPS: External Registrar registration " 135550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho "completed successfully"); 135650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps_success_event(wps->wps, wps->peer_dev.mac_addr); 135750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wps->state = WPS_FINISHED; 135850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_DONE; 135950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 136050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 136150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_FAILURE; 136250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho} 136350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 136450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 136550294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehostatic enum wps_process_res wps_process_wsc_nack(struct wps_data *wps, 136650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho const struct wpabuf *msg) 136750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho{ 136850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho struct wps_parse_attr attr; 136950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho u16 config_error; 137050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 137150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_printf(MSG_DEBUG, "WPS: Received WSC_NACK"); 1372103e9ffba2cba345d0078eb8b8db33249f81840aCraig Cornelius 137350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (wps_parse_msg(msg, &attr) < 0) 137454dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius return WPS_FAILURE; 137550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 137650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (attr.msg_type == NULL) { 137750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho wpa_printf(MSG_DEBUG, "WPS: No Message Type attribute"); 137850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho return WPS_FAILURE; 137950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 1380c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 1381c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (*attr.msg_type != WPS_WSC_NACK) { 1382c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Invalid Message Type %d", 1383c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru *attr.msg_type); 1384c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return WPS_FAILURE; 1385c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 1386c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 1387c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (attr.registrar_nonce == NULL || 1388c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru os_memcmp(wps->nonce_r, attr.registrar_nonce, WPS_NONCE_LEN) != 0) 1389c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru { 1390c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Mismatch in registrar nonce"); 1391c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_hexdump(MSG_DEBUG, "WPS: Received Registrar Nonce", 1392c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru attr.registrar_nonce, WPS_NONCE_LEN); 1393c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_hexdump(MSG_DEBUG, "WPS: Expected Registrar Nonce", 1394c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->nonce_r, WPS_NONCE_LEN); 1395c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return WPS_FAILURE; 1396c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 1397c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 1398c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (attr.enrollee_nonce == NULL || 1399c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru os_memcmp(wps->nonce_e, attr.enrollee_nonce, WPS_NONCE_LEN) != 0) { 1400b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Mismatch in enrollee nonce"); 1401c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_hexdump(MSG_DEBUG, "WPS: Received Enrollee Nonce", 140250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho attr.enrollee_nonce, WPS_NONCE_LEN); 1403c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_hexdump(MSG_DEBUG, "WPS: Expected Enrollee Nonce", 1404c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->nonce_e, WPS_NONCE_LEN); 1405c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return WPS_FAILURE; 1406c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 1407c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 1408c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (attr.config_error == NULL) { 1409c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: No Configuration Error attribute " 1410c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru "in WSC_NACK"); 1411c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return WPS_FAILURE; 1412c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 1413c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 1414b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru config_error = WPA_GET_BE16(attr.config_error); 1415c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Registrar terminated negotiation with " 141650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho "Configuration Error %d", config_error); 1417c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 1418c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru switch (wps->state) { 1419c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru case RECV_M4: 1420c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps_fail_event(wps->wps, WPS_M3, config_error, 1421b26ce3a7367e4ed2ee7ddddcdc3f3d3377a455c2claireho wps->error_indication, wps->peer_dev.mac_addr); 1422c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru break; 1423c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru case RECV_M6: 1424c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps_fail_event(wps->wps, WPS_M5, config_error, 1425c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->error_indication, wps->peer_dev.mac_addr); 1426c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru break; 1427c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru case RECV_M8: 1428c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps_fail_event(wps->wps, WPS_M7, config_error, 1429c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->error_indication, wps->peer_dev.mac_addr); 1430c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru break; 1431c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru default: 1432c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru break; 1433c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 143459d709d503bab6e2b61931737e662dd293b40578ccornelius 143559d709d503bab6e2b61931737e662dd293b40578ccornelius /* Followed by NACK if Enrollee is Supplicant or EAP-Failure if 1436c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru * Enrollee is Authenticator */ 1437c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wps->state = SEND_WSC_NACK; 1438b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 1439c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return WPS_FAILURE; 144050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho} 1441c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 1442c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 1443c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queruenum wps_process_res wps_enrollee_process_msg(struct wps_data *wps, 1444c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru enum wsc_op_code op_code, 1445c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru const struct wpabuf *msg) 1446c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru{ 1447c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 1448c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Processing received message (len=%lu " 1449c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru "op_code=%d)", 1450b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (unsigned long) wpabuf_len(msg), op_code); 1451c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 145250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (op_code == WSC_UPnP) { 1453c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru /* Determine the OpCode based on message type attribute */ 1454c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru struct wps_parse_attr attr; 1455c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (wps_parse_msg(msg, &attr) == 0 && attr.msg_type) { 1456c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (*attr.msg_type == WPS_WSC_ACK) 1457c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru op_code = WSC_ACK; 1458c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru else if (*attr.msg_type == WPS_WSC_NACK) 1459c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru op_code = WSC_NACK; 1460c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 1461c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 1462c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru 1463c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru switch (op_code) { 1464c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru case WSC_MSG: 1465c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru case WSC_UPnP: 1466c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return wps_process_wsc_msg(wps, msg); 1467c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru case WSC_ACK: 1468c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (wps_validate_wsc_ack(msg) < 0) 1469c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return WPS_FAILURE; 1470c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return wps_process_wsc_ack(wps, msg); 1471c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru case WSC_NACK: 1472c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru if (wps_validate_wsc_nack(msg) < 0) 1473b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru return WPS_FAILURE; 1474c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return wps_process_wsc_nack(wps, msg); 1475c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru default: 1476c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru wpa_printf(MSG_DEBUG, "WPS: Unsupported op_code %d", op_code); 1477c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru return WPS_FAILURE; 1478c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru } 1479c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru} 1480c69afcec261fc345fda8daf46f0ea6b4351dc777Jean-Baptiste Queru