1189251Ssam/* 2189251Ssam * Wi-Fi Protected Setup - Registrar 3252726Srpaulo * Copyright (c) 2008-2012, Jouni Malinen <j@w1.fi> 4189251Ssam * 5252726Srpaulo * This software may be distributed under the terms of the BSD license. 6252726Srpaulo * See README for more details. 7189251Ssam */ 8189251Ssam 9214734Srpaulo#include "utils/includes.h" 10189251Ssam 11214734Srpaulo#include "utils/common.h" 12214734Srpaulo#include "utils/base64.h" 13214734Srpaulo#include "utils/eloop.h" 14214734Srpaulo#include "utils/uuid.h" 15214734Srpaulo#include "utils/list.h" 16214734Srpaulo#include "crypto/crypto.h" 17214734Srpaulo#include "crypto/sha256.h" 18252726Srpaulo#include "crypto/random.h" 19214734Srpaulo#include "common/ieee802_11_defs.h" 20189251Ssam#include "wps_i.h" 21189251Ssam#include "wps_dev_attr.h" 22189251Ssam#include "wps_upnp.h" 23214734Srpaulo#include "wps_upnp_i.h" 24189251Ssam 25252726Srpaulo#ifndef CONFIG_WPS_STRICT 26209158Srpaulo#define WPS_WORKAROUNDS 27252726Srpaulo#endif /* CONFIG_WPS_STRICT */ 28189251Ssam 29252726Srpaulo#ifdef CONFIG_WPS_NFC 30252726Srpaulo 31252726Srpaulostruct wps_nfc_pw_token { 32252726Srpaulo struct dl_list list; 33252726Srpaulo u8 pubkey_hash[WPS_OOB_PUBKEY_HASH_LEN]; 34252726Srpaulo u16 pw_id; 35252726Srpaulo u8 dev_pw[WPS_OOB_DEVICE_PASSWORD_LEN]; 36252726Srpaulo size_t dev_pw_len; 37252726Srpaulo}; 38252726Srpaulo 39252726Srpaulo 40252726Srpaulostatic void wps_remove_nfc_pw_token(struct wps_nfc_pw_token *token) 41252726Srpaulo{ 42252726Srpaulo dl_list_del(&token->list); 43252726Srpaulo os_free(token); 44252726Srpaulo} 45252726Srpaulo 46252726Srpaulo 47252726Srpaulostatic void wps_free_nfc_pw_tokens(struct dl_list *tokens, u16 pw_id) 48252726Srpaulo{ 49252726Srpaulo struct wps_nfc_pw_token *token, *prev; 50252726Srpaulo dl_list_for_each_safe(token, prev, tokens, struct wps_nfc_pw_token, 51252726Srpaulo list) { 52252726Srpaulo if (pw_id == 0 || pw_id == token->pw_id) 53252726Srpaulo wps_remove_nfc_pw_token(token); 54252726Srpaulo } 55252726Srpaulo} 56252726Srpaulo 57252726Srpaulo 58252726Srpaulostatic struct wps_nfc_pw_token * wps_get_nfc_pw_token(struct dl_list *tokens, 59252726Srpaulo u16 pw_id) 60252726Srpaulo{ 61252726Srpaulo struct wps_nfc_pw_token *token; 62252726Srpaulo dl_list_for_each(token, tokens, struct wps_nfc_pw_token, list) { 63252726Srpaulo if (pw_id == token->pw_id) 64252726Srpaulo return token; 65252726Srpaulo } 66252726Srpaulo return NULL; 67252726Srpaulo} 68252726Srpaulo 69252726Srpaulo#else /* CONFIG_WPS_NFC */ 70252726Srpaulo 71252726Srpaulo#define wps_free_nfc_pw_tokens(t, p) do { } while (0) 72252726Srpaulo 73252726Srpaulo#endif /* CONFIG_WPS_NFC */ 74252726Srpaulo 75252726Srpaulo 76189251Ssamstruct wps_uuid_pin { 77214734Srpaulo struct dl_list list; 78189251Ssam u8 uuid[WPS_UUID_LEN]; 79189251Ssam int wildcard_uuid; 80189251Ssam u8 *pin; 81189251Ssam size_t pin_len; 82209158Srpaulo#define PIN_LOCKED BIT(0) 83209158Srpaulo#define PIN_EXPIRES BIT(1) 84209158Srpaulo int flags; 85209158Srpaulo struct os_time expiration; 86252726Srpaulo u8 enrollee_addr[ETH_ALEN]; 87189251Ssam}; 88189251Ssam 89189251Ssam 90189251Ssamstatic void wps_free_pin(struct wps_uuid_pin *pin) 91189251Ssam{ 92189251Ssam os_free(pin->pin); 93189251Ssam os_free(pin); 94189251Ssam} 95189251Ssam 96189251Ssam 97214734Srpaulostatic void wps_remove_pin(struct wps_uuid_pin *pin) 98189251Ssam{ 99214734Srpaulo dl_list_del(&pin->list); 100214734Srpaulo wps_free_pin(pin); 101214734Srpaulo} 102214734Srpaulo 103214734Srpaulo 104214734Srpaulostatic void wps_free_pins(struct dl_list *pins) 105214734Srpaulo{ 106189251Ssam struct wps_uuid_pin *pin, *prev; 107214734Srpaulo dl_list_for_each_safe(pin, prev, pins, struct wps_uuid_pin, list) 108214734Srpaulo wps_remove_pin(pin); 109189251Ssam} 110189251Ssam 111189251Ssam 112189251Ssamstruct wps_pbc_session { 113189251Ssam struct wps_pbc_session *next; 114189251Ssam u8 addr[ETH_ALEN]; 115189251Ssam u8 uuid_e[WPS_UUID_LEN]; 116189251Ssam struct os_time timestamp; 117189251Ssam}; 118189251Ssam 119189251Ssam 120189251Ssamstatic void wps_free_pbc_sessions(struct wps_pbc_session *pbc) 121189251Ssam{ 122189251Ssam struct wps_pbc_session *prev; 123189251Ssam 124189251Ssam while (pbc) { 125189251Ssam prev = pbc; 126189251Ssam pbc = pbc->next; 127189251Ssam os_free(prev); 128189251Ssam } 129189251Ssam} 130189251Ssam 131189251Ssam 132214734Srpaulostruct wps_registrar_device { 133214734Srpaulo struct wps_registrar_device *next; 134214734Srpaulo struct wps_device_data dev; 135214734Srpaulo u8 uuid[WPS_UUID_LEN]; 136214734Srpaulo}; 137214734Srpaulo 138214734Srpaulo 139189251Ssamstruct wps_registrar { 140189251Ssam struct wps_context *wps; 141189251Ssam 142189251Ssam int pbc; 143189251Ssam int selected_registrar; 144189251Ssam 145189251Ssam int (*new_psk_cb)(void *ctx, const u8 *mac_addr, const u8 *psk, 146189251Ssam size_t psk_len); 147214734Srpaulo int (*set_ie_cb)(void *ctx, struct wpabuf *beacon_ie, 148214734Srpaulo struct wpabuf *probe_resp_ie); 149189251Ssam void (*pin_needed_cb)(void *ctx, const u8 *uuid_e, 150189251Ssam const struct wps_device_data *dev); 151189251Ssam void (*reg_success_cb)(void *ctx, const u8 *mac_addr, 152252726Srpaulo const u8 *uuid_e, const u8 *dev_pw, 153252726Srpaulo size_t dev_pw_len); 154214734Srpaulo void (*set_sel_reg_cb)(void *ctx, int sel_reg, u16 dev_passwd_id, 155214734Srpaulo u16 sel_reg_config_methods); 156214734Srpaulo void (*enrollee_seen_cb)(void *ctx, const u8 *addr, const u8 *uuid_e, 157214734Srpaulo const u8 *pri_dev_type, u16 config_methods, 158214734Srpaulo u16 dev_password_id, u8 request_type, 159214734Srpaulo const char *dev_name); 160189251Ssam void *cb_ctx; 161189251Ssam 162214734Srpaulo struct dl_list pins; 163252726Srpaulo struct dl_list nfc_pw_tokens; 164189251Ssam struct wps_pbc_session *pbc_sessions; 165189251Ssam 166189251Ssam int skip_cred_build; 167189251Ssam struct wpabuf *extra_cred; 168189251Ssam int disable_auto_conf; 169214734Srpaulo int sel_reg_union; 170189251Ssam int sel_reg_dev_password_id_override; 171189251Ssam int sel_reg_config_methods_override; 172209158Srpaulo int static_wep_only; 173252726Srpaulo int dualband; 174209158Srpaulo 175214734Srpaulo struct wps_registrar_device *devices; 176214734Srpaulo 177209158Srpaulo int force_pbc_overlap; 178252726Srpaulo 179252726Srpaulo u8 authorized_macs[WPS_MAX_AUTHORIZED_MACS][ETH_ALEN]; 180252726Srpaulo u8 authorized_macs_union[WPS_MAX_AUTHORIZED_MACS][ETH_ALEN]; 181252726Srpaulo 182252726Srpaulo u8 p2p_dev_addr[ETH_ALEN]; 183252726Srpaulo 184252726Srpaulo u8 pbc_ignore_uuid[WPS_UUID_LEN]; 185252726Srpaulo struct os_time pbc_ignore_start; 186189251Ssam}; 187189251Ssam 188189251Ssam 189189251Ssamstatic int wps_set_ie(struct wps_registrar *reg); 190189251Ssamstatic void wps_registrar_pbc_timeout(void *eloop_ctx, void *timeout_ctx); 191189251Ssamstatic void wps_registrar_set_selected_timeout(void *eloop_ctx, 192189251Ssam void *timeout_ctx); 193252726Srpaulostatic void wps_registrar_remove_pin(struct wps_registrar *reg, 194252726Srpaulo struct wps_uuid_pin *pin); 195189251Ssam 196189251Ssam 197252726Srpaulostatic void wps_registrar_add_authorized_mac(struct wps_registrar *reg, 198252726Srpaulo const u8 *addr) 199252726Srpaulo{ 200252726Srpaulo int i; 201252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Add authorized MAC " MACSTR, 202252726Srpaulo MAC2STR(addr)); 203252726Srpaulo for (i = 0; i < WPS_MAX_AUTHORIZED_MACS; i++) 204252726Srpaulo if (os_memcmp(reg->authorized_macs[i], addr, ETH_ALEN) == 0) { 205252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Authorized MAC was " 206252726Srpaulo "already in the list"); 207252726Srpaulo return; /* already in list */ 208252726Srpaulo } 209252726Srpaulo for (i = WPS_MAX_AUTHORIZED_MACS - 1; i > 0; i--) 210252726Srpaulo os_memcpy(reg->authorized_macs[i], reg->authorized_macs[i - 1], 211252726Srpaulo ETH_ALEN); 212252726Srpaulo os_memcpy(reg->authorized_macs[0], addr, ETH_ALEN); 213252726Srpaulo wpa_hexdump(MSG_DEBUG, "WPS: Authorized MACs", 214252726Srpaulo (u8 *) reg->authorized_macs, sizeof(reg->authorized_macs)); 215252726Srpaulo} 216252726Srpaulo 217252726Srpaulo 218252726Srpaulostatic void wps_registrar_remove_authorized_mac(struct wps_registrar *reg, 219252726Srpaulo const u8 *addr) 220252726Srpaulo{ 221252726Srpaulo int i; 222252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Remove authorized MAC " MACSTR, 223252726Srpaulo MAC2STR(addr)); 224252726Srpaulo for (i = 0; i < WPS_MAX_AUTHORIZED_MACS; i++) { 225252726Srpaulo if (os_memcmp(reg->authorized_macs, addr, ETH_ALEN) == 0) 226252726Srpaulo break; 227252726Srpaulo } 228252726Srpaulo if (i == WPS_MAX_AUTHORIZED_MACS) { 229252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Authorized MAC was not in the " 230252726Srpaulo "list"); 231252726Srpaulo return; /* not in the list */ 232252726Srpaulo } 233252726Srpaulo for (; i + 1 < WPS_MAX_AUTHORIZED_MACS; i++) 234252726Srpaulo os_memcpy(reg->authorized_macs[i], reg->authorized_macs[i + 1], 235252726Srpaulo ETH_ALEN); 236252726Srpaulo os_memset(reg->authorized_macs[WPS_MAX_AUTHORIZED_MACS - 1], 0, 237252726Srpaulo ETH_ALEN); 238252726Srpaulo wpa_hexdump(MSG_DEBUG, "WPS: Authorized MACs", 239252726Srpaulo (u8 *) reg->authorized_macs, sizeof(reg->authorized_macs)); 240252726Srpaulo} 241252726Srpaulo 242252726Srpaulo 243214734Srpaulostatic void wps_free_devices(struct wps_registrar_device *dev) 244214734Srpaulo{ 245214734Srpaulo struct wps_registrar_device *prev; 246214734Srpaulo 247214734Srpaulo while (dev) { 248214734Srpaulo prev = dev; 249214734Srpaulo dev = dev->next; 250214734Srpaulo wps_device_data_free(&prev->dev); 251214734Srpaulo os_free(prev); 252214734Srpaulo } 253214734Srpaulo} 254214734Srpaulo 255214734Srpaulo 256214734Srpaulostatic struct wps_registrar_device * wps_device_get(struct wps_registrar *reg, 257214734Srpaulo const u8 *addr) 258214734Srpaulo{ 259214734Srpaulo struct wps_registrar_device *dev; 260214734Srpaulo 261214734Srpaulo for (dev = reg->devices; dev; dev = dev->next) { 262214734Srpaulo if (os_memcmp(dev->dev.mac_addr, addr, ETH_ALEN) == 0) 263214734Srpaulo return dev; 264214734Srpaulo } 265214734Srpaulo return NULL; 266214734Srpaulo} 267214734Srpaulo 268214734Srpaulo 269214734Srpaulostatic void wps_device_clone_data(struct wps_device_data *dst, 270214734Srpaulo struct wps_device_data *src) 271214734Srpaulo{ 272214734Srpaulo os_memcpy(dst->mac_addr, src->mac_addr, ETH_ALEN); 273214734Srpaulo os_memcpy(dst->pri_dev_type, src->pri_dev_type, WPS_DEV_TYPE_LEN); 274214734Srpaulo 275214734Srpaulo#define WPS_STRDUP(n) \ 276214734Srpaulo os_free(dst->n); \ 277214734Srpaulo dst->n = src->n ? os_strdup(src->n) : NULL 278214734Srpaulo 279214734Srpaulo WPS_STRDUP(device_name); 280214734Srpaulo WPS_STRDUP(manufacturer); 281214734Srpaulo WPS_STRDUP(model_name); 282214734Srpaulo WPS_STRDUP(model_number); 283214734Srpaulo WPS_STRDUP(serial_number); 284214734Srpaulo#undef WPS_STRDUP 285214734Srpaulo} 286214734Srpaulo 287214734Srpaulo 288214734Srpauloint wps_device_store(struct wps_registrar *reg, 289214734Srpaulo struct wps_device_data *dev, const u8 *uuid) 290214734Srpaulo{ 291214734Srpaulo struct wps_registrar_device *d; 292214734Srpaulo 293214734Srpaulo d = wps_device_get(reg, dev->mac_addr); 294214734Srpaulo if (d == NULL) { 295214734Srpaulo d = os_zalloc(sizeof(*d)); 296214734Srpaulo if (d == NULL) 297214734Srpaulo return -1; 298214734Srpaulo d->next = reg->devices; 299214734Srpaulo reg->devices = d; 300214734Srpaulo } 301214734Srpaulo 302214734Srpaulo wps_device_clone_data(&d->dev, dev); 303214734Srpaulo os_memcpy(d->uuid, uuid, WPS_UUID_LEN); 304214734Srpaulo 305214734Srpaulo return 0; 306214734Srpaulo} 307214734Srpaulo 308214734Srpaulo 309189251Ssamstatic void wps_registrar_add_pbc_session(struct wps_registrar *reg, 310189251Ssam const u8 *addr, const u8 *uuid_e) 311189251Ssam{ 312189251Ssam struct wps_pbc_session *pbc, *prev = NULL; 313189251Ssam struct os_time now; 314189251Ssam 315189251Ssam os_get_time(&now); 316189251Ssam 317189251Ssam pbc = reg->pbc_sessions; 318189251Ssam while (pbc) { 319189251Ssam if (os_memcmp(pbc->addr, addr, ETH_ALEN) == 0 && 320189251Ssam os_memcmp(pbc->uuid_e, uuid_e, WPS_UUID_LEN) == 0) { 321189251Ssam if (prev) 322189251Ssam prev->next = pbc->next; 323189251Ssam else 324189251Ssam reg->pbc_sessions = pbc->next; 325189251Ssam break; 326189251Ssam } 327189251Ssam prev = pbc; 328189251Ssam pbc = pbc->next; 329189251Ssam } 330189251Ssam 331189251Ssam if (!pbc) { 332189251Ssam pbc = os_zalloc(sizeof(*pbc)); 333189251Ssam if (pbc == NULL) 334189251Ssam return; 335189251Ssam os_memcpy(pbc->addr, addr, ETH_ALEN); 336189251Ssam if (uuid_e) 337189251Ssam os_memcpy(pbc->uuid_e, uuid_e, WPS_UUID_LEN); 338189251Ssam } 339189251Ssam 340189251Ssam pbc->next = reg->pbc_sessions; 341189251Ssam reg->pbc_sessions = pbc; 342189251Ssam pbc->timestamp = now; 343189251Ssam 344189251Ssam /* remove entries that have timed out */ 345189251Ssam prev = pbc; 346189251Ssam pbc = pbc->next; 347189251Ssam 348189251Ssam while (pbc) { 349189251Ssam if (now.sec > pbc->timestamp.sec + WPS_PBC_WALK_TIME) { 350189251Ssam prev->next = NULL; 351189251Ssam wps_free_pbc_sessions(pbc); 352189251Ssam break; 353189251Ssam } 354189251Ssam prev = pbc; 355189251Ssam pbc = pbc->next; 356189251Ssam } 357189251Ssam} 358189251Ssam 359189251Ssam 360189251Ssamstatic void wps_registrar_remove_pbc_session(struct wps_registrar *reg, 361252726Srpaulo const u8 *uuid_e, 362252726Srpaulo const u8 *p2p_dev_addr) 363189251Ssam{ 364252726Srpaulo struct wps_pbc_session *pbc, *prev = NULL, *tmp; 365189251Ssam 366189251Ssam pbc = reg->pbc_sessions; 367189251Ssam while (pbc) { 368252726Srpaulo if (os_memcmp(pbc->uuid_e, uuid_e, WPS_UUID_LEN) == 0 || 369252726Srpaulo (p2p_dev_addr && !is_zero_ether_addr(reg->p2p_dev_addr) && 370252726Srpaulo os_memcmp(reg->p2p_dev_addr, p2p_dev_addr, ETH_ALEN) == 371252726Srpaulo 0)) { 372189251Ssam if (prev) 373189251Ssam prev->next = pbc->next; 374189251Ssam else 375189251Ssam reg->pbc_sessions = pbc->next; 376252726Srpaulo tmp = pbc; 377252726Srpaulo pbc = pbc->next; 378252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Removing PBC session for " 379252726Srpaulo "addr=" MACSTR, MAC2STR(tmp->addr)); 380252726Srpaulo wpa_hexdump(MSG_DEBUG, "WPS: Removed UUID-E", 381252726Srpaulo tmp->uuid_e, WPS_UUID_LEN); 382252726Srpaulo os_free(tmp); 383252726Srpaulo continue; 384189251Ssam } 385189251Ssam prev = pbc; 386189251Ssam pbc = pbc->next; 387189251Ssam } 388189251Ssam} 389189251Ssam 390189251Ssam 391252726Srpauloint wps_registrar_pbc_overlap(struct wps_registrar *reg, 392252726Srpaulo const u8 *addr, const u8 *uuid_e) 393189251Ssam{ 394189251Ssam int count = 0; 395189251Ssam struct wps_pbc_session *pbc; 396252726Srpaulo struct wps_pbc_session *first = NULL; 397189251Ssam struct os_time now; 398189251Ssam 399189251Ssam os_get_time(&now); 400189251Ssam 401252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Checking active PBC sessions for overlap"); 402252726Srpaulo 403252726Srpaulo if (uuid_e) { 404252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Add one for the requested UUID"); 405252726Srpaulo wpa_hexdump(MSG_DEBUG, "WPS: Requested UUID", 406252726Srpaulo uuid_e, WPS_UUID_LEN); 407252726Srpaulo count++; 408252726Srpaulo } 409252726Srpaulo 410189251Ssam for (pbc = reg->pbc_sessions; pbc; pbc = pbc->next) { 411252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Consider PBC session with " MACSTR, 412252726Srpaulo MAC2STR(pbc->addr)); 413252726Srpaulo wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", 414252726Srpaulo pbc->uuid_e, WPS_UUID_LEN); 415252726Srpaulo if (now.sec > pbc->timestamp.sec + WPS_PBC_WALK_TIME) { 416252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: PBC walk time has " 417252726Srpaulo "expired"); 418189251Ssam break; 419252726Srpaulo } 420252726Srpaulo if (first && 421252726Srpaulo os_memcmp(pbc->uuid_e, first->uuid_e, WPS_UUID_LEN) == 0) { 422252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Same Enrollee"); 423252726Srpaulo continue; /* same Enrollee */ 424252726Srpaulo } 425252726Srpaulo if (uuid_e == NULL || 426252726Srpaulo os_memcmp(uuid_e, pbc->uuid_e, WPS_UUID_LEN)) { 427252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: New Enrollee"); 428189251Ssam count++; 429252726Srpaulo } 430252726Srpaulo if (first == NULL) 431252726Srpaulo first = pbc; 432189251Ssam } 433189251Ssam 434252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: %u active PBC session(s) found", count); 435189251Ssam 436189251Ssam return count > 1 ? 1 : 0; 437189251Ssam} 438189251Ssam 439189251Ssam 440189251Ssamstatic int wps_build_wps_state(struct wps_context *wps, struct wpabuf *msg) 441189251Ssam{ 442189251Ssam wpa_printf(MSG_DEBUG, "WPS: * Wi-Fi Protected Setup State (%d)", 443189251Ssam wps->wps_state); 444189251Ssam wpabuf_put_be16(msg, ATTR_WPS_STATE); 445189251Ssam wpabuf_put_be16(msg, 1); 446189251Ssam wpabuf_put_u8(msg, wps->wps_state); 447189251Ssam return 0; 448189251Ssam} 449189251Ssam 450189251Ssam 451189251Ssam#ifdef CONFIG_WPS_UPNP 452189251Ssamstatic void wps_registrar_free_pending_m2(struct wps_context *wps) 453189251Ssam{ 454189251Ssam struct upnp_pending_message *p, *p2, *prev = NULL; 455189251Ssam p = wps->upnp_msgs; 456189251Ssam while (p) { 457189251Ssam if (p->type == WPS_M2 || p->type == WPS_M2D) { 458189251Ssam if (prev == NULL) 459189251Ssam wps->upnp_msgs = p->next; 460189251Ssam else 461189251Ssam prev->next = p->next; 462189251Ssam wpa_printf(MSG_DEBUG, "WPS UPnP: Drop pending M2/M2D"); 463189251Ssam p2 = p; 464189251Ssam p = p->next; 465189251Ssam wpabuf_free(p2->msg); 466189251Ssam os_free(p2); 467189251Ssam continue; 468189251Ssam } 469189251Ssam prev = p; 470189251Ssam p = p->next; 471189251Ssam } 472189251Ssam} 473189251Ssam#endif /* CONFIG_WPS_UPNP */ 474189251Ssam 475189251Ssam 476189251Ssamstatic int wps_build_ap_setup_locked(struct wps_context *wps, 477189251Ssam struct wpabuf *msg) 478189251Ssam{ 479252726Srpaulo if (wps->ap_setup_locked && wps->ap_setup_locked != 2) { 480189251Ssam wpa_printf(MSG_DEBUG, "WPS: * AP Setup Locked"); 481189251Ssam wpabuf_put_be16(msg, ATTR_AP_SETUP_LOCKED); 482189251Ssam wpabuf_put_be16(msg, 1); 483189251Ssam wpabuf_put_u8(msg, 1); 484189251Ssam } 485189251Ssam return 0; 486189251Ssam} 487189251Ssam 488189251Ssam 489189251Ssamstatic int wps_build_selected_registrar(struct wps_registrar *reg, 490189251Ssam struct wpabuf *msg) 491189251Ssam{ 492214734Srpaulo if (!reg->sel_reg_union) 493189251Ssam return 0; 494189251Ssam wpa_printf(MSG_DEBUG, "WPS: * Selected Registrar"); 495189251Ssam wpabuf_put_be16(msg, ATTR_SELECTED_REGISTRAR); 496189251Ssam wpabuf_put_be16(msg, 1); 497189251Ssam wpabuf_put_u8(msg, 1); 498189251Ssam return 0; 499189251Ssam} 500189251Ssam 501189251Ssam 502189251Ssamstatic int wps_build_sel_reg_dev_password_id(struct wps_registrar *reg, 503189251Ssam struct wpabuf *msg) 504189251Ssam{ 505189251Ssam u16 id = reg->pbc ? DEV_PW_PUSHBUTTON : DEV_PW_DEFAULT; 506214734Srpaulo if (!reg->sel_reg_union) 507189251Ssam return 0; 508189251Ssam if (reg->sel_reg_dev_password_id_override >= 0) 509189251Ssam id = reg->sel_reg_dev_password_id_override; 510189251Ssam wpa_printf(MSG_DEBUG, "WPS: * Device Password ID (%d)", id); 511189251Ssam wpabuf_put_be16(msg, ATTR_DEV_PASSWORD_ID); 512189251Ssam wpabuf_put_be16(msg, 2); 513189251Ssam wpabuf_put_be16(msg, id); 514189251Ssam return 0; 515189251Ssam} 516189251Ssam 517189251Ssam 518252726Srpaulostatic int wps_build_sel_pbc_reg_uuid_e(struct wps_registrar *reg, 519252726Srpaulo struct wpabuf *msg) 520252726Srpaulo{ 521252726Srpaulo u16 id = reg->pbc ? DEV_PW_PUSHBUTTON : DEV_PW_DEFAULT; 522252726Srpaulo if (!reg->sel_reg_union) 523252726Srpaulo return 0; 524252726Srpaulo if (reg->sel_reg_dev_password_id_override >= 0) 525252726Srpaulo id = reg->sel_reg_dev_password_id_override; 526252726Srpaulo if (id != DEV_PW_PUSHBUTTON || !reg->dualband) 527252726Srpaulo return 0; 528252726Srpaulo return wps_build_uuid_e(msg, reg->wps->uuid); 529252726Srpaulo} 530252726Srpaulo 531252726Srpaulo 532252726Srpaulostatic void wps_set_pushbutton(u16 *methods, u16 conf_methods) 533252726Srpaulo{ 534252726Srpaulo *methods |= WPS_CONFIG_PUSHBUTTON; 535252726Srpaulo#ifdef CONFIG_WPS2 536252726Srpaulo if ((conf_methods & WPS_CONFIG_VIRT_PUSHBUTTON) == 537252726Srpaulo WPS_CONFIG_VIRT_PUSHBUTTON) 538252726Srpaulo *methods |= WPS_CONFIG_VIRT_PUSHBUTTON; 539252726Srpaulo if ((conf_methods & WPS_CONFIG_PHY_PUSHBUTTON) == 540252726Srpaulo WPS_CONFIG_PHY_PUSHBUTTON) 541252726Srpaulo *methods |= WPS_CONFIG_PHY_PUSHBUTTON; 542252726Srpaulo if ((*methods & WPS_CONFIG_VIRT_PUSHBUTTON) != 543252726Srpaulo WPS_CONFIG_VIRT_PUSHBUTTON && 544252726Srpaulo (*methods & WPS_CONFIG_PHY_PUSHBUTTON) != 545252726Srpaulo WPS_CONFIG_PHY_PUSHBUTTON) { 546252726Srpaulo /* 547252726Srpaulo * Required to include virtual/physical flag, but we were not 548252726Srpaulo * configured with push button type, so have to default to one 549252726Srpaulo * of them. 550252726Srpaulo */ 551252726Srpaulo *methods |= WPS_CONFIG_PHY_PUSHBUTTON; 552252726Srpaulo } 553252726Srpaulo#endif /* CONFIG_WPS2 */ 554252726Srpaulo} 555252726Srpaulo 556252726Srpaulo 557189251Ssamstatic int wps_build_sel_reg_config_methods(struct wps_registrar *reg, 558189251Ssam struct wpabuf *msg) 559189251Ssam{ 560189251Ssam u16 methods; 561214734Srpaulo if (!reg->sel_reg_union) 562189251Ssam return 0; 563252726Srpaulo methods = reg->wps->config_methods; 564252726Srpaulo methods &= ~WPS_CONFIG_PUSHBUTTON; 565252726Srpaulo#ifdef CONFIG_WPS2 566252726Srpaulo methods &= ~(WPS_CONFIG_VIRT_PUSHBUTTON | 567252726Srpaulo WPS_CONFIG_PHY_PUSHBUTTON); 568252726Srpaulo#endif /* CONFIG_WPS2 */ 569189251Ssam if (reg->pbc) 570252726Srpaulo wps_set_pushbutton(&methods, reg->wps->config_methods); 571189251Ssam if (reg->sel_reg_config_methods_override >= 0) 572189251Ssam methods = reg->sel_reg_config_methods_override; 573189251Ssam wpa_printf(MSG_DEBUG, "WPS: * Selected Registrar Config Methods (%x)", 574189251Ssam methods); 575189251Ssam wpabuf_put_be16(msg, ATTR_SELECTED_REGISTRAR_CONFIG_METHODS); 576189251Ssam wpabuf_put_be16(msg, 2); 577189251Ssam wpabuf_put_be16(msg, methods); 578189251Ssam return 0; 579189251Ssam} 580189251Ssam 581189251Ssam 582189251Ssamstatic int wps_build_probe_config_methods(struct wps_registrar *reg, 583189251Ssam struct wpabuf *msg) 584189251Ssam{ 585189251Ssam u16 methods; 586214734Srpaulo /* 587214734Srpaulo * These are the methods that the AP supports as an Enrollee for adding 588214734Srpaulo * external Registrars. 589214734Srpaulo */ 590214734Srpaulo methods = reg->wps->config_methods & ~WPS_CONFIG_PUSHBUTTON; 591252726Srpaulo#ifdef CONFIG_WPS2 592252726Srpaulo methods &= ~(WPS_CONFIG_VIRT_PUSHBUTTON | 593252726Srpaulo WPS_CONFIG_PHY_PUSHBUTTON); 594252726Srpaulo#endif /* CONFIG_WPS2 */ 595189251Ssam wpa_printf(MSG_DEBUG, "WPS: * Config Methods (%x)", methods); 596189251Ssam wpabuf_put_be16(msg, ATTR_CONFIG_METHODS); 597189251Ssam wpabuf_put_be16(msg, 2); 598189251Ssam wpabuf_put_be16(msg, methods); 599189251Ssam return 0; 600189251Ssam} 601189251Ssam 602189251Ssam 603189251Ssamstatic int wps_build_config_methods_r(struct wps_registrar *reg, 604189251Ssam struct wpabuf *msg) 605189251Ssam{ 606252726Srpaulo return wps_build_config_methods(msg, reg->wps->config_methods); 607189251Ssam} 608189251Ssam 609189251Ssam 610252726Srpauloconst u8 * wps_authorized_macs(struct wps_registrar *reg, size_t *count) 611252726Srpaulo{ 612252726Srpaulo *count = 0; 613252726Srpaulo 614252726Srpaulo#ifdef CONFIG_WPS2 615252726Srpaulo while (*count < WPS_MAX_AUTHORIZED_MACS) { 616252726Srpaulo if (is_zero_ether_addr(reg->authorized_macs_union[*count])) 617252726Srpaulo break; 618252726Srpaulo (*count)++; 619252726Srpaulo } 620252726Srpaulo#endif /* CONFIG_WPS2 */ 621252726Srpaulo 622252726Srpaulo return (const u8 *) reg->authorized_macs_union; 623252726Srpaulo} 624252726Srpaulo 625252726Srpaulo 626189251Ssam/** 627189251Ssam * wps_registrar_init - Initialize WPS Registrar data 628189251Ssam * @wps: Pointer to longterm WPS context 629189251Ssam * @cfg: Registrar configuration 630189251Ssam * Returns: Pointer to allocated Registrar data or %NULL on failure 631189251Ssam * 632189251Ssam * This function is used to initialize WPS Registrar functionality. It can be 633189251Ssam * used for a single Registrar run (e.g., when run in a supplicant) or multiple 634189251Ssam * runs (e.g., when run as an internal Registrar in an AP). Caller is 635189251Ssam * responsible for freeing the returned data with wps_registrar_deinit() when 636189251Ssam * Registrar functionality is not needed anymore. 637189251Ssam */ 638189251Ssamstruct wps_registrar * 639189251Ssamwps_registrar_init(struct wps_context *wps, 640189251Ssam const struct wps_registrar_config *cfg) 641189251Ssam{ 642189251Ssam struct wps_registrar *reg = os_zalloc(sizeof(*reg)); 643189251Ssam if (reg == NULL) 644189251Ssam return NULL; 645189251Ssam 646214734Srpaulo dl_list_init(®->pins); 647252726Srpaulo dl_list_init(®->nfc_pw_tokens); 648189251Ssam reg->wps = wps; 649189251Ssam reg->new_psk_cb = cfg->new_psk_cb; 650189251Ssam reg->set_ie_cb = cfg->set_ie_cb; 651189251Ssam reg->pin_needed_cb = cfg->pin_needed_cb; 652189251Ssam reg->reg_success_cb = cfg->reg_success_cb; 653214734Srpaulo reg->set_sel_reg_cb = cfg->set_sel_reg_cb; 654214734Srpaulo reg->enrollee_seen_cb = cfg->enrollee_seen_cb; 655189251Ssam reg->cb_ctx = cfg->cb_ctx; 656189251Ssam reg->skip_cred_build = cfg->skip_cred_build; 657189251Ssam if (cfg->extra_cred) { 658189251Ssam reg->extra_cred = wpabuf_alloc_copy(cfg->extra_cred, 659189251Ssam cfg->extra_cred_len); 660189251Ssam if (reg->extra_cred == NULL) { 661189251Ssam os_free(reg); 662189251Ssam return NULL; 663189251Ssam } 664189251Ssam } 665189251Ssam reg->disable_auto_conf = cfg->disable_auto_conf; 666189251Ssam reg->sel_reg_dev_password_id_override = -1; 667189251Ssam reg->sel_reg_config_methods_override = -1; 668209158Srpaulo reg->static_wep_only = cfg->static_wep_only; 669252726Srpaulo reg->dualband = cfg->dualband; 670189251Ssam 671189251Ssam if (wps_set_ie(reg)) { 672189251Ssam wps_registrar_deinit(reg); 673189251Ssam return NULL; 674189251Ssam } 675189251Ssam 676189251Ssam return reg; 677189251Ssam} 678189251Ssam 679189251Ssam 680189251Ssam/** 681189251Ssam * wps_registrar_deinit - Deinitialize WPS Registrar data 682189251Ssam * @reg: Registrar data from wps_registrar_init() 683189251Ssam */ 684189251Ssamvoid wps_registrar_deinit(struct wps_registrar *reg) 685189251Ssam{ 686189251Ssam if (reg == NULL) 687189251Ssam return; 688189251Ssam eloop_cancel_timeout(wps_registrar_pbc_timeout, reg, NULL); 689189251Ssam eloop_cancel_timeout(wps_registrar_set_selected_timeout, reg, NULL); 690214734Srpaulo wps_free_pins(®->pins); 691252726Srpaulo wps_free_nfc_pw_tokens(®->nfc_pw_tokens, 0); 692189251Ssam wps_free_pbc_sessions(reg->pbc_sessions); 693189251Ssam wpabuf_free(reg->extra_cred); 694214734Srpaulo wps_free_devices(reg->devices); 695189251Ssam os_free(reg); 696189251Ssam} 697189251Ssam 698189251Ssam 699252726Srpaulostatic void wps_registrar_invalidate_unused(struct wps_registrar *reg) 700252726Srpaulo{ 701252726Srpaulo struct wps_uuid_pin *pin; 702252726Srpaulo 703252726Srpaulo dl_list_for_each(pin, ®->pins, struct wps_uuid_pin, list) { 704252726Srpaulo if (pin->wildcard_uuid == 1 && !(pin->flags & PIN_LOCKED)) { 705252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Invalidate previously " 706252726Srpaulo "configured wildcard PIN"); 707252726Srpaulo wps_registrar_remove_pin(reg, pin); 708252726Srpaulo break; 709252726Srpaulo } 710252726Srpaulo } 711252726Srpaulo} 712252726Srpaulo 713252726Srpaulo 714189251Ssam/** 715189251Ssam * wps_registrar_add_pin - Configure a new PIN for Registrar 716189251Ssam * @reg: Registrar data from wps_registrar_init() 717252726Srpaulo * @addr: Enrollee MAC address or %NULL if not known 718189251Ssam * @uuid: UUID-E or %NULL for wildcard (any UUID) 719189251Ssam * @pin: PIN (Device Password) 720189251Ssam * @pin_len: Length of pin in octets 721209158Srpaulo * @timeout: Time (in seconds) when the PIN will be invalidated; 0 = no timeout 722189251Ssam * Returns: 0 on success, -1 on failure 723189251Ssam */ 724252726Srpauloint wps_registrar_add_pin(struct wps_registrar *reg, const u8 *addr, 725252726Srpaulo const u8 *uuid, const u8 *pin, size_t pin_len, 726252726Srpaulo int timeout) 727189251Ssam{ 728189251Ssam struct wps_uuid_pin *p; 729189251Ssam 730189251Ssam p = os_zalloc(sizeof(*p)); 731189251Ssam if (p == NULL) 732189251Ssam return -1; 733252726Srpaulo if (addr) 734252726Srpaulo os_memcpy(p->enrollee_addr, addr, ETH_ALEN); 735189251Ssam if (uuid == NULL) 736189251Ssam p->wildcard_uuid = 1; 737189251Ssam else 738189251Ssam os_memcpy(p->uuid, uuid, WPS_UUID_LEN); 739189251Ssam p->pin = os_malloc(pin_len); 740189251Ssam if (p->pin == NULL) { 741189251Ssam os_free(p); 742189251Ssam return -1; 743189251Ssam } 744189251Ssam os_memcpy(p->pin, pin, pin_len); 745189251Ssam p->pin_len = pin_len; 746189251Ssam 747209158Srpaulo if (timeout) { 748209158Srpaulo p->flags |= PIN_EXPIRES; 749209158Srpaulo os_get_time(&p->expiration); 750209158Srpaulo p->expiration.sec += timeout; 751209158Srpaulo } 752209158Srpaulo 753252726Srpaulo if (p->wildcard_uuid) 754252726Srpaulo wps_registrar_invalidate_unused(reg); 755252726Srpaulo 756214734Srpaulo dl_list_add(®->pins, &p->list); 757189251Ssam 758209158Srpaulo wpa_printf(MSG_DEBUG, "WPS: A new PIN configured (timeout=%d)", 759209158Srpaulo timeout); 760189251Ssam wpa_hexdump(MSG_DEBUG, "WPS: UUID", uuid, WPS_UUID_LEN); 761189251Ssam wpa_hexdump_ascii_key(MSG_DEBUG, "WPS: PIN", pin, pin_len); 762189251Ssam reg->selected_registrar = 1; 763189251Ssam reg->pbc = 0; 764252726Srpaulo if (addr) 765252726Srpaulo wps_registrar_add_authorized_mac(reg, addr); 766252726Srpaulo else 767252726Srpaulo wps_registrar_add_authorized_mac( 768252726Srpaulo reg, (u8 *) "\xff\xff\xff\xff\xff\xff"); 769214734Srpaulo wps_registrar_selected_registrar_changed(reg); 770209158Srpaulo eloop_cancel_timeout(wps_registrar_set_selected_timeout, reg, NULL); 771209158Srpaulo eloop_register_timeout(WPS_PBC_WALK_TIME, 0, 772209158Srpaulo wps_registrar_set_selected_timeout, 773209158Srpaulo reg, NULL); 774189251Ssam 775189251Ssam return 0; 776189251Ssam} 777189251Ssam 778189251Ssam 779252726Srpaulostatic void wps_registrar_remove_pin(struct wps_registrar *reg, 780252726Srpaulo struct wps_uuid_pin *pin) 781252726Srpaulo{ 782252726Srpaulo u8 *addr; 783252726Srpaulo u8 bcast[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 784252726Srpaulo 785252726Srpaulo if (is_zero_ether_addr(pin->enrollee_addr)) 786252726Srpaulo addr = bcast; 787252726Srpaulo else 788252726Srpaulo addr = pin->enrollee_addr; 789252726Srpaulo wps_registrar_remove_authorized_mac(reg, addr); 790252726Srpaulo wps_remove_pin(pin); 791252726Srpaulo wps_registrar_selected_registrar_changed(reg); 792252726Srpaulo} 793252726Srpaulo 794252726Srpaulo 795209158Srpaulostatic void wps_registrar_expire_pins(struct wps_registrar *reg) 796209158Srpaulo{ 797214734Srpaulo struct wps_uuid_pin *pin, *prev; 798209158Srpaulo struct os_time now; 799209158Srpaulo 800209158Srpaulo os_get_time(&now); 801214734Srpaulo dl_list_for_each_safe(pin, prev, ®->pins, struct wps_uuid_pin, list) 802214734Srpaulo { 803209158Srpaulo if ((pin->flags & PIN_EXPIRES) && 804209158Srpaulo os_time_before(&pin->expiration, &now)) { 805209158Srpaulo wpa_hexdump(MSG_DEBUG, "WPS: Expired PIN for UUID", 806214734Srpaulo pin->uuid, WPS_UUID_LEN); 807252726Srpaulo wps_registrar_remove_pin(reg, pin); 808209158Srpaulo } 809209158Srpaulo } 810209158Srpaulo} 811209158Srpaulo 812209158Srpaulo 813189251Ssam/** 814252726Srpaulo * wps_registrar_invalidate_wildcard_pin - Invalidate a wildcard PIN 815252726Srpaulo * @reg: Registrar data from wps_registrar_init() 816252726Srpaulo * @dev_pw: PIN to search for or %NULL to match any 817252726Srpaulo * @dev_pw_len: Length of dev_pw in octets 818252726Srpaulo * Returns: 0 on success, -1 if not wildcard PIN is enabled 819252726Srpaulo */ 820252726Srpaulostatic int wps_registrar_invalidate_wildcard_pin(struct wps_registrar *reg, 821252726Srpaulo const u8 *dev_pw, 822252726Srpaulo size_t dev_pw_len) 823252726Srpaulo{ 824252726Srpaulo struct wps_uuid_pin *pin, *prev; 825252726Srpaulo 826252726Srpaulo dl_list_for_each_safe(pin, prev, ®->pins, struct wps_uuid_pin, list) 827252726Srpaulo { 828252726Srpaulo if (dev_pw && pin->pin && 829252726Srpaulo (dev_pw_len != pin->pin_len || 830252726Srpaulo os_memcmp(dev_pw, pin->pin, dev_pw_len) != 0)) 831252726Srpaulo continue; /* different PIN */ 832252726Srpaulo if (pin->wildcard_uuid) { 833252726Srpaulo wpa_hexdump(MSG_DEBUG, "WPS: Invalidated PIN for UUID", 834252726Srpaulo pin->uuid, WPS_UUID_LEN); 835252726Srpaulo wps_registrar_remove_pin(reg, pin); 836252726Srpaulo return 0; 837252726Srpaulo } 838252726Srpaulo } 839252726Srpaulo 840252726Srpaulo return -1; 841252726Srpaulo} 842252726Srpaulo 843252726Srpaulo 844252726Srpaulo/** 845189251Ssam * wps_registrar_invalidate_pin - Invalidate a PIN for a specific UUID-E 846189251Ssam * @reg: Registrar data from wps_registrar_init() 847189251Ssam * @uuid: UUID-E 848189251Ssam * Returns: 0 on success, -1 on failure (e.g., PIN not found) 849189251Ssam */ 850189251Ssamint wps_registrar_invalidate_pin(struct wps_registrar *reg, const u8 *uuid) 851189251Ssam{ 852189251Ssam struct wps_uuid_pin *pin, *prev; 853189251Ssam 854214734Srpaulo dl_list_for_each_safe(pin, prev, ®->pins, struct wps_uuid_pin, list) 855214734Srpaulo { 856189251Ssam if (os_memcmp(pin->uuid, uuid, WPS_UUID_LEN) == 0) { 857189251Ssam wpa_hexdump(MSG_DEBUG, "WPS: Invalidated PIN for UUID", 858189251Ssam pin->uuid, WPS_UUID_LEN); 859252726Srpaulo wps_registrar_remove_pin(reg, pin); 860189251Ssam return 0; 861189251Ssam } 862189251Ssam } 863189251Ssam 864189251Ssam return -1; 865189251Ssam} 866189251Ssam 867189251Ssam 868189251Ssamstatic const u8 * wps_registrar_get_pin(struct wps_registrar *reg, 869189251Ssam const u8 *uuid, size_t *pin_len) 870189251Ssam{ 871214734Srpaulo struct wps_uuid_pin *pin, *found = NULL; 872189251Ssam 873209158Srpaulo wps_registrar_expire_pins(reg); 874209158Srpaulo 875214734Srpaulo dl_list_for_each(pin, ®->pins, struct wps_uuid_pin, list) { 876189251Ssam if (!pin->wildcard_uuid && 877214734Srpaulo os_memcmp(pin->uuid, uuid, WPS_UUID_LEN) == 0) { 878214734Srpaulo found = pin; 879189251Ssam break; 880214734Srpaulo } 881189251Ssam } 882189251Ssam 883214734Srpaulo if (!found) { 884189251Ssam /* Check for wildcard UUIDs since none of the UUID-specific 885189251Ssam * PINs matched */ 886214734Srpaulo dl_list_for_each(pin, ®->pins, struct wps_uuid_pin, list) { 887252726Srpaulo if (pin->wildcard_uuid == 1 || 888252726Srpaulo pin->wildcard_uuid == 2) { 889189251Ssam wpa_printf(MSG_DEBUG, "WPS: Found a wildcard " 890189251Ssam "PIN. Assigned it for this UUID-E"); 891252726Srpaulo pin->wildcard_uuid++; 892189251Ssam os_memcpy(pin->uuid, uuid, WPS_UUID_LEN); 893214734Srpaulo found = pin; 894189251Ssam break; 895189251Ssam } 896189251Ssam } 897189251Ssam } 898189251Ssam 899214734Srpaulo if (!found) 900189251Ssam return NULL; 901189251Ssam 902189251Ssam /* 903189251Ssam * Lock the PIN to avoid attacks based on concurrent re-use of the PIN 904189251Ssam * that could otherwise avoid PIN invalidations. 905189251Ssam */ 906214734Srpaulo if (found->flags & PIN_LOCKED) { 907189251Ssam wpa_printf(MSG_DEBUG, "WPS: Selected PIN locked - do not " 908189251Ssam "allow concurrent re-use"); 909189251Ssam return NULL; 910189251Ssam } 911214734Srpaulo *pin_len = found->pin_len; 912214734Srpaulo found->flags |= PIN_LOCKED; 913214734Srpaulo return found->pin; 914189251Ssam} 915189251Ssam 916189251Ssam 917189251Ssam/** 918189251Ssam * wps_registrar_unlock_pin - Unlock a PIN for a specific UUID-E 919189251Ssam * @reg: Registrar data from wps_registrar_init() 920189251Ssam * @uuid: UUID-E 921189251Ssam * Returns: 0 on success, -1 on failure 922189251Ssam * 923189251Ssam * PINs are locked to enforce only one concurrent use. This function unlocks a 924189251Ssam * PIN to allow it to be used again. If the specified PIN was configured using 925189251Ssam * a wildcard UUID, it will be removed instead of allowing multiple uses. 926189251Ssam */ 927189251Ssamint wps_registrar_unlock_pin(struct wps_registrar *reg, const u8 *uuid) 928189251Ssam{ 929189251Ssam struct wps_uuid_pin *pin; 930189251Ssam 931214734Srpaulo dl_list_for_each(pin, ®->pins, struct wps_uuid_pin, list) { 932189251Ssam if (os_memcmp(pin->uuid, uuid, WPS_UUID_LEN) == 0) { 933252726Srpaulo if (pin->wildcard_uuid == 3) { 934189251Ssam wpa_printf(MSG_DEBUG, "WPS: Invalidating used " 935189251Ssam "wildcard PIN"); 936189251Ssam return wps_registrar_invalidate_pin(reg, uuid); 937189251Ssam } 938209158Srpaulo pin->flags &= ~PIN_LOCKED; 939189251Ssam return 0; 940189251Ssam } 941189251Ssam } 942189251Ssam 943189251Ssam return -1; 944189251Ssam} 945189251Ssam 946189251Ssam 947189251Ssamstatic void wps_registrar_stop_pbc(struct wps_registrar *reg) 948189251Ssam{ 949189251Ssam reg->selected_registrar = 0; 950189251Ssam reg->pbc = 0; 951252726Srpaulo os_memset(reg->p2p_dev_addr, 0, ETH_ALEN); 952252726Srpaulo wps_registrar_remove_authorized_mac(reg, 953252726Srpaulo (u8 *) "\xff\xff\xff\xff\xff\xff"); 954214734Srpaulo wps_registrar_selected_registrar_changed(reg); 955189251Ssam} 956189251Ssam 957189251Ssam 958189251Ssamstatic void wps_registrar_pbc_timeout(void *eloop_ctx, void *timeout_ctx) 959189251Ssam{ 960189251Ssam struct wps_registrar *reg = eloop_ctx; 961189251Ssam 962189251Ssam wpa_printf(MSG_DEBUG, "WPS: PBC timed out - disable PBC mode"); 963209158Srpaulo wps_pbc_timeout_event(reg->wps); 964189251Ssam wps_registrar_stop_pbc(reg); 965189251Ssam} 966189251Ssam 967189251Ssam 968189251Ssam/** 969189251Ssam * wps_registrar_button_pushed - Notify Registrar that AP button was pushed 970189251Ssam * @reg: Registrar data from wps_registrar_init() 971252726Srpaulo * @p2p_dev_addr: Limit allowed PBC devices to the specified P2P device, %NULL 972252726Srpaulo * indicates no such filtering 973252726Srpaulo * Returns: 0 on success, -1 on failure, -2 on session overlap 974189251Ssam * 975189251Ssam * This function is called on an AP when a push button is pushed to activate 976189251Ssam * PBC mode. The PBC mode will be stopped after walk time (2 minutes) timeout 977252726Srpaulo * or when a PBC registration is completed. If more than one Enrollee in active 978252726Srpaulo * PBC mode has been detected during the monitor time (previous 2 minutes), the 979252726Srpaulo * PBC mode is not activated and -2 is returned to indicate session overlap. 980252726Srpaulo * This is skipped if a specific Enrollee is selected. 981189251Ssam */ 982252726Srpauloint wps_registrar_button_pushed(struct wps_registrar *reg, 983252726Srpaulo const u8 *p2p_dev_addr) 984189251Ssam{ 985252726Srpaulo if (p2p_dev_addr == NULL && 986252726Srpaulo wps_registrar_pbc_overlap(reg, NULL, NULL)) { 987189251Ssam wpa_printf(MSG_DEBUG, "WPS: PBC overlap - do not start PBC " 988189251Ssam "mode"); 989209158Srpaulo wps_pbc_overlap_event(reg->wps); 990252726Srpaulo return -2; 991189251Ssam } 992189251Ssam wpa_printf(MSG_DEBUG, "WPS: Button pushed - PBC mode started"); 993209158Srpaulo reg->force_pbc_overlap = 0; 994189251Ssam reg->selected_registrar = 1; 995189251Ssam reg->pbc = 1; 996252726Srpaulo if (p2p_dev_addr) 997252726Srpaulo os_memcpy(reg->p2p_dev_addr, p2p_dev_addr, ETH_ALEN); 998252726Srpaulo else 999252726Srpaulo os_memset(reg->p2p_dev_addr, 0, ETH_ALEN); 1000252726Srpaulo wps_registrar_add_authorized_mac(reg, 1001252726Srpaulo (u8 *) "\xff\xff\xff\xff\xff\xff"); 1002214734Srpaulo wps_registrar_selected_registrar_changed(reg); 1003189251Ssam 1004252726Srpaulo eloop_cancel_timeout(wps_registrar_set_selected_timeout, reg, NULL); 1005189251Ssam eloop_cancel_timeout(wps_registrar_pbc_timeout, reg, NULL); 1006189251Ssam eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wps_registrar_pbc_timeout, 1007189251Ssam reg, NULL); 1008189251Ssam return 0; 1009189251Ssam} 1010189251Ssam 1011189251Ssam 1012189251Ssamstatic void wps_registrar_pbc_completed(struct wps_registrar *reg) 1013189251Ssam{ 1014189251Ssam wpa_printf(MSG_DEBUG, "WPS: PBC completed - stopping PBC mode"); 1015189251Ssam eloop_cancel_timeout(wps_registrar_pbc_timeout, reg, NULL); 1016189251Ssam wps_registrar_stop_pbc(reg); 1017189251Ssam} 1018189251Ssam 1019214734Srpaulo 1020209158Srpaulostatic void wps_registrar_pin_completed(struct wps_registrar *reg) 1021209158Srpaulo{ 1022209158Srpaulo wpa_printf(MSG_DEBUG, "WPS: PIN completed using internal Registrar"); 1023209158Srpaulo eloop_cancel_timeout(wps_registrar_set_selected_timeout, reg, NULL); 1024209158Srpaulo reg->selected_registrar = 0; 1025214734Srpaulo wps_registrar_selected_registrar_changed(reg); 1026209158Srpaulo} 1027189251Ssam 1028209158Srpaulo 1029252726Srpaulovoid wps_registrar_complete(struct wps_registrar *registrar, const u8 *uuid_e, 1030252726Srpaulo const u8 *dev_pw, size_t dev_pw_len) 1031252726Srpaulo{ 1032252726Srpaulo if (registrar->pbc) { 1033252726Srpaulo wps_registrar_remove_pbc_session(registrar, 1034252726Srpaulo uuid_e, NULL); 1035252726Srpaulo wps_registrar_pbc_completed(registrar); 1036252726Srpaulo os_get_time(®istrar->pbc_ignore_start); 1037252726Srpaulo os_memcpy(registrar->pbc_ignore_uuid, uuid_e, WPS_UUID_LEN); 1038252726Srpaulo } else { 1039252726Srpaulo wps_registrar_pin_completed(registrar); 1040252726Srpaulo } 1041252726Srpaulo 1042252726Srpaulo if (dev_pw && 1043252726Srpaulo wps_registrar_invalidate_wildcard_pin(registrar, dev_pw, 1044252726Srpaulo dev_pw_len) == 0) { 1045252726Srpaulo wpa_hexdump_key(MSG_DEBUG, "WPS: Invalidated wildcard PIN", 1046252726Srpaulo dev_pw, dev_pw_len); 1047252726Srpaulo } 1048252726Srpaulo} 1049252726Srpaulo 1050252726Srpaulo 1051252726Srpauloint wps_registrar_wps_cancel(struct wps_registrar *reg) 1052252726Srpaulo{ 1053252726Srpaulo if (reg->pbc) { 1054252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: PBC is set - cancelling it"); 1055252726Srpaulo wps_registrar_pbc_timeout(reg, NULL); 1056252726Srpaulo eloop_cancel_timeout(wps_registrar_pbc_timeout, reg, NULL); 1057252726Srpaulo return 1; 1058252726Srpaulo } else if (reg->selected_registrar) { 1059252726Srpaulo /* PIN Method */ 1060252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: PIN is set - cancelling it"); 1061252726Srpaulo wps_registrar_pin_completed(reg); 1062252726Srpaulo wps_registrar_invalidate_wildcard_pin(reg, NULL, 0); 1063252726Srpaulo return 1; 1064252726Srpaulo } 1065252726Srpaulo return 0; 1066252726Srpaulo} 1067252726Srpaulo 1068252726Srpaulo 1069189251Ssam/** 1070189251Ssam * wps_registrar_probe_req_rx - Notify Registrar of Probe Request 1071189251Ssam * @reg: Registrar data from wps_registrar_init() 1072189251Ssam * @addr: MAC address of the Probe Request sender 1073189251Ssam * @wps_data: WPS IE contents 1074189251Ssam * 1075189251Ssam * This function is called on an AP when a Probe Request with WPS IE is 1076189251Ssam * received. This is used to track PBC mode use and to detect possible overlap 1077189251Ssam * situation with other WPS APs. 1078189251Ssam */ 1079189251Ssamvoid wps_registrar_probe_req_rx(struct wps_registrar *reg, const u8 *addr, 1080252726Srpaulo const struct wpabuf *wps_data, 1081252726Srpaulo int p2p_wildcard) 1082189251Ssam{ 1083189251Ssam struct wps_parse_attr attr; 1084252726Srpaulo int skip_add = 0; 1085189251Ssam 1086189251Ssam wpa_hexdump_buf(MSG_MSGDUMP, 1087189251Ssam "WPS: Probe Request with WPS data received", 1088189251Ssam wps_data); 1089189251Ssam 1090189251Ssam if (wps_parse_msg(wps_data, &attr) < 0) 1091189251Ssam return; 1092189251Ssam 1093189251Ssam if (attr.config_methods == NULL) { 1094189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Config Methods attribute in " 1095189251Ssam "Probe Request"); 1096189251Ssam return; 1097189251Ssam } 1098189251Ssam 1099214734Srpaulo if (attr.dev_password_id == NULL) { 1100214734Srpaulo wpa_printf(MSG_DEBUG, "WPS: No Device Password Id attribute " 1101214734Srpaulo "in Probe Request"); 1102214734Srpaulo return; 1103214734Srpaulo } 1104214734Srpaulo 1105214734Srpaulo if (reg->enrollee_seen_cb && attr.uuid_e && 1106252726Srpaulo attr.primary_dev_type && attr.request_type && !p2p_wildcard) { 1107214734Srpaulo char *dev_name = NULL; 1108214734Srpaulo if (attr.dev_name) { 1109214734Srpaulo dev_name = os_zalloc(attr.dev_name_len + 1); 1110214734Srpaulo if (dev_name) { 1111214734Srpaulo os_memcpy(dev_name, attr.dev_name, 1112214734Srpaulo attr.dev_name_len); 1113214734Srpaulo } 1114214734Srpaulo } 1115214734Srpaulo reg->enrollee_seen_cb(reg->cb_ctx, addr, attr.uuid_e, 1116214734Srpaulo attr.primary_dev_type, 1117214734Srpaulo WPA_GET_BE16(attr.config_methods), 1118214734Srpaulo WPA_GET_BE16(attr.dev_password_id), 1119214734Srpaulo *attr.request_type, dev_name); 1120214734Srpaulo os_free(dev_name); 1121214734Srpaulo } 1122214734Srpaulo 1123214734Srpaulo if (WPA_GET_BE16(attr.dev_password_id) != DEV_PW_PUSHBUTTON) 1124189251Ssam return; /* Not PBC */ 1125189251Ssam 1126189251Ssam wpa_printf(MSG_DEBUG, "WPS: Probe Request for PBC received from " 1127189251Ssam MACSTR, MAC2STR(addr)); 1128209158Srpaulo if (attr.uuid_e == NULL) { 1129209158Srpaulo wpa_printf(MSG_DEBUG, "WPS: Invalid Probe Request WPS IE: No " 1130209158Srpaulo "UUID-E included"); 1131209158Srpaulo return; 1132209158Srpaulo } 1133252726Srpaulo wpa_hexdump(MSG_DEBUG, "WPS: UUID-E from Probe Request", attr.uuid_e, 1134252726Srpaulo WPS_UUID_LEN); 1135189251Ssam 1136252726Srpaulo#ifdef WPS_WORKAROUNDS 1137252726Srpaulo if (reg->pbc_ignore_start.sec && 1138252726Srpaulo os_memcmp(attr.uuid_e, reg->pbc_ignore_uuid, WPS_UUID_LEN) == 0) { 1139252726Srpaulo struct os_time now, dur; 1140252726Srpaulo os_get_time(&now); 1141252726Srpaulo os_time_sub(&now, ®->pbc_ignore_start, &dur); 1142252726Srpaulo if (dur.sec >= 0 && dur.sec < 5) { 1143252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Ignore PBC activation " 1144252726Srpaulo "based on Probe Request from the Enrollee " 1145252726Srpaulo "that just completed PBC provisioning"); 1146252726Srpaulo skip_add = 1; 1147252726Srpaulo } else 1148252726Srpaulo reg->pbc_ignore_start.sec = 0; 1149252726Srpaulo } 1150252726Srpaulo#endif /* WPS_WORKAROUNDS */ 1151252726Srpaulo 1152252726Srpaulo if (!skip_add) 1153252726Srpaulo wps_registrar_add_pbc_session(reg, addr, attr.uuid_e); 1154209158Srpaulo if (wps_registrar_pbc_overlap(reg, addr, attr.uuid_e)) { 1155209158Srpaulo wpa_printf(MSG_DEBUG, "WPS: PBC session overlap detected"); 1156209158Srpaulo reg->force_pbc_overlap = 1; 1157209158Srpaulo wps_pbc_overlap_event(reg->wps); 1158209158Srpaulo } 1159189251Ssam} 1160189251Ssam 1161189251Ssam 1162189251Ssamstatic int wps_cb_new_psk(struct wps_registrar *reg, const u8 *mac_addr, 1163189251Ssam const u8 *psk, size_t psk_len) 1164189251Ssam{ 1165189251Ssam if (reg->new_psk_cb == NULL) 1166189251Ssam return 0; 1167189251Ssam 1168189251Ssam return reg->new_psk_cb(reg->cb_ctx, mac_addr, psk, psk_len); 1169189251Ssam} 1170189251Ssam 1171189251Ssam 1172189251Ssamstatic void wps_cb_pin_needed(struct wps_registrar *reg, const u8 *uuid_e, 1173189251Ssam const struct wps_device_data *dev) 1174189251Ssam{ 1175189251Ssam if (reg->pin_needed_cb == NULL) 1176189251Ssam return; 1177189251Ssam 1178189251Ssam reg->pin_needed_cb(reg->cb_ctx, uuid_e, dev); 1179189251Ssam} 1180189251Ssam 1181189251Ssam 1182189251Ssamstatic void wps_cb_reg_success(struct wps_registrar *reg, const u8 *mac_addr, 1183252726Srpaulo const u8 *uuid_e, const u8 *dev_pw, 1184252726Srpaulo size_t dev_pw_len) 1185189251Ssam{ 1186189251Ssam if (reg->reg_success_cb == NULL) 1187189251Ssam return; 1188189251Ssam 1189252726Srpaulo reg->reg_success_cb(reg->cb_ctx, mac_addr, uuid_e, dev_pw, dev_pw_len); 1190189251Ssam} 1191189251Ssam 1192189251Ssam 1193214734Srpaulostatic int wps_cb_set_ie(struct wps_registrar *reg, struct wpabuf *beacon_ie, 1194214734Srpaulo struct wpabuf *probe_resp_ie) 1195189251Ssam{ 1196214734Srpaulo return reg->set_ie_cb(reg->cb_ctx, beacon_ie, probe_resp_ie); 1197214734Srpaulo} 1198189251Ssam 1199214734Srpaulo 1200214734Srpaulostatic void wps_cb_set_sel_reg(struct wps_registrar *reg) 1201214734Srpaulo{ 1202214734Srpaulo u16 methods = 0; 1203214734Srpaulo if (reg->set_sel_reg_cb == NULL) 1204214734Srpaulo return; 1205214734Srpaulo 1206214734Srpaulo if (reg->selected_registrar) { 1207214734Srpaulo methods = reg->wps->config_methods & ~WPS_CONFIG_PUSHBUTTON; 1208252726Srpaulo#ifdef CONFIG_WPS2 1209252726Srpaulo methods &= ~(WPS_CONFIG_VIRT_PUSHBUTTON | 1210252726Srpaulo WPS_CONFIG_PHY_PUSHBUTTON); 1211252726Srpaulo#endif /* CONFIG_WPS2 */ 1212214734Srpaulo if (reg->pbc) 1213252726Srpaulo wps_set_pushbutton(&methods, reg->wps->config_methods); 1214214734Srpaulo } 1215214734Srpaulo 1216252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: wps_cb_set_sel_reg: sel_reg=%d " 1217252726Srpaulo "config_methods=0x%x pbc=%d methods=0x%x", 1218252726Srpaulo reg->selected_registrar, reg->wps->config_methods, 1219252726Srpaulo reg->pbc, methods); 1220252726Srpaulo 1221214734Srpaulo reg->set_sel_reg_cb(reg->cb_ctx, reg->selected_registrar, 1222214734Srpaulo reg->pbc ? DEV_PW_PUSHBUTTON : DEV_PW_DEFAULT, 1223214734Srpaulo methods); 1224189251Ssam} 1225189251Ssam 1226189251Ssam 1227189251Ssamstatic int wps_set_ie(struct wps_registrar *reg) 1228189251Ssam{ 1229189251Ssam struct wpabuf *beacon; 1230189251Ssam struct wpabuf *probe; 1231252726Srpaulo const u8 *auth_macs; 1232252726Srpaulo size_t count; 1233252726Srpaulo size_t vendor_len = 0; 1234252726Srpaulo int i; 1235189251Ssam 1236214734Srpaulo if (reg->set_ie_cb == NULL) 1237214734Srpaulo return 0; 1238214734Srpaulo 1239252726Srpaulo for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) { 1240252726Srpaulo if (reg->wps->dev.vendor_ext[i]) { 1241252726Srpaulo vendor_len += 2 + 2; 1242252726Srpaulo vendor_len += wpabuf_len(reg->wps->dev.vendor_ext[i]); 1243252726Srpaulo } 1244252726Srpaulo } 1245189251Ssam 1246252726Srpaulo beacon = wpabuf_alloc(400 + vendor_len); 1247189251Ssam if (beacon == NULL) 1248189251Ssam return -1; 1249252726Srpaulo probe = wpabuf_alloc(500 + vendor_len); 1250189251Ssam if (probe == NULL) { 1251189251Ssam wpabuf_free(beacon); 1252189251Ssam return -1; 1253189251Ssam } 1254189251Ssam 1255252726Srpaulo auth_macs = wps_authorized_macs(reg, &count); 1256252726Srpaulo 1257252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Build Beacon IEs"); 1258252726Srpaulo 1259189251Ssam if (wps_build_version(beacon) || 1260189251Ssam wps_build_wps_state(reg->wps, beacon) || 1261189251Ssam wps_build_ap_setup_locked(reg->wps, beacon) || 1262189251Ssam wps_build_selected_registrar(reg, beacon) || 1263189251Ssam wps_build_sel_reg_dev_password_id(reg, beacon) || 1264189251Ssam wps_build_sel_reg_config_methods(reg, beacon) || 1265252726Srpaulo wps_build_sel_pbc_reg_uuid_e(reg, beacon) || 1266252726Srpaulo (reg->dualband && wps_build_rf_bands(®->wps->dev, beacon)) || 1267252726Srpaulo wps_build_wfa_ext(beacon, 0, auth_macs, count) || 1268252726Srpaulo wps_build_vendor_ext(®->wps->dev, beacon)) { 1269252726Srpaulo wpabuf_free(beacon); 1270252726Srpaulo wpabuf_free(probe); 1271252726Srpaulo return -1; 1272252726Srpaulo } 1273252726Srpaulo 1274252726Srpaulo#ifdef CONFIG_P2P 1275252726Srpaulo if (wps_build_dev_name(®->wps->dev, beacon) || 1276252726Srpaulo wps_build_primary_dev_type(®->wps->dev, beacon)) { 1277252726Srpaulo wpabuf_free(beacon); 1278252726Srpaulo wpabuf_free(probe); 1279252726Srpaulo return -1; 1280252726Srpaulo } 1281252726Srpaulo#endif /* CONFIG_P2P */ 1282252726Srpaulo 1283252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Build Probe Response IEs"); 1284252726Srpaulo 1285252726Srpaulo if (wps_build_version(probe) || 1286189251Ssam wps_build_wps_state(reg->wps, probe) || 1287189251Ssam wps_build_ap_setup_locked(reg->wps, probe) || 1288189251Ssam wps_build_selected_registrar(reg, probe) || 1289189251Ssam wps_build_sel_reg_dev_password_id(reg, probe) || 1290189251Ssam wps_build_sel_reg_config_methods(reg, probe) || 1291214734Srpaulo wps_build_resp_type(probe, reg->wps->ap ? WPS_RESP_AP : 1292214734Srpaulo WPS_RESP_REGISTRAR) || 1293189251Ssam wps_build_uuid_e(probe, reg->wps->uuid) || 1294189251Ssam wps_build_device_attrs(®->wps->dev, probe) || 1295189251Ssam wps_build_probe_config_methods(reg, probe) || 1296252726Srpaulo (reg->dualband && wps_build_rf_bands(®->wps->dev, probe)) || 1297252726Srpaulo wps_build_wfa_ext(probe, 0, auth_macs, count) || 1298252726Srpaulo wps_build_vendor_ext(®->wps->dev, probe)) { 1299189251Ssam wpabuf_free(beacon); 1300189251Ssam wpabuf_free(probe); 1301189251Ssam return -1; 1302189251Ssam } 1303189251Ssam 1304189251Ssam beacon = wps_ie_encapsulate(beacon); 1305189251Ssam probe = wps_ie_encapsulate(probe); 1306189251Ssam 1307189251Ssam if (!beacon || !probe) { 1308189251Ssam wpabuf_free(beacon); 1309189251Ssam wpabuf_free(probe); 1310189251Ssam return -1; 1311189251Ssam } 1312189251Ssam 1313209158Srpaulo if (reg->static_wep_only) { 1314209158Srpaulo /* 1315209158Srpaulo * Windows XP and Vista clients can get confused about 1316209158Srpaulo * EAP-Identity/Request when they probe the network with 1317209158Srpaulo * EAPOL-Start. In such a case, they may assume the network is 1318209158Srpaulo * using IEEE 802.1X and prompt user for a certificate while 1319209158Srpaulo * the correct (non-WPS) behavior would be to ask for the 1320209158Srpaulo * static WEP key. As a workaround, use Microsoft Provisioning 1321209158Srpaulo * IE to advertise that legacy 802.1X is not supported. 1322209158Srpaulo */ 1323209158Srpaulo const u8 ms_wps[7] = { 1324209158Srpaulo WLAN_EID_VENDOR_SPECIFIC, 5, 1325209158Srpaulo /* Microsoft Provisioning IE (00:50:f2:5) */ 1326209158Srpaulo 0x00, 0x50, 0xf2, 5, 1327209158Srpaulo 0x00 /* no legacy 802.1X or MS WPS */ 1328209158Srpaulo }; 1329209158Srpaulo wpa_printf(MSG_DEBUG, "WPS: Add Microsoft Provisioning IE " 1330209158Srpaulo "into Beacon/Probe Response frames"); 1331209158Srpaulo wpabuf_put_data(beacon, ms_wps, sizeof(ms_wps)); 1332209158Srpaulo wpabuf_put_data(probe, ms_wps, sizeof(ms_wps)); 1333209158Srpaulo } 1334209158Srpaulo 1335214734Srpaulo return wps_cb_set_ie(reg, beacon, probe); 1336189251Ssam} 1337189251Ssam 1338189251Ssam 1339189251Ssamstatic int wps_get_dev_password(struct wps_data *wps) 1340189251Ssam{ 1341189251Ssam const u8 *pin; 1342189251Ssam size_t pin_len = 0; 1343189251Ssam 1344189251Ssam os_free(wps->dev_password); 1345189251Ssam wps->dev_password = NULL; 1346189251Ssam 1347189251Ssam if (wps->pbc) { 1348189251Ssam wpa_printf(MSG_DEBUG, "WPS: Use default PIN for PBC"); 1349189251Ssam pin = (const u8 *) "00000000"; 1350189251Ssam pin_len = 8; 1351252726Srpaulo#ifdef CONFIG_WPS_NFC 1352252726Srpaulo } else if (wps->nfc_pw_token) { 1353252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Use OOB Device Password from NFC " 1354252726Srpaulo "Password Token"); 1355252726Srpaulo pin = wps->nfc_pw_token->dev_pw; 1356252726Srpaulo pin_len = wps->nfc_pw_token->dev_pw_len; 1357252726Srpaulo#endif /* CONFIG_WPS_NFC */ 1358189251Ssam } else { 1359189251Ssam pin = wps_registrar_get_pin(wps->wps->registrar, wps->uuid_e, 1360189251Ssam &pin_len); 1361189251Ssam } 1362189251Ssam if (pin == NULL) { 1363189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Device Password available for " 1364189251Ssam "the Enrollee"); 1365189251Ssam wps_cb_pin_needed(wps->wps->registrar, wps->uuid_e, 1366189251Ssam &wps->peer_dev); 1367189251Ssam return -1; 1368189251Ssam } 1369189251Ssam 1370189251Ssam wps->dev_password = os_malloc(pin_len); 1371189251Ssam if (wps->dev_password == NULL) 1372189251Ssam return -1; 1373189251Ssam os_memcpy(wps->dev_password, pin, pin_len); 1374189251Ssam wps->dev_password_len = pin_len; 1375189251Ssam 1376189251Ssam return 0; 1377189251Ssam} 1378189251Ssam 1379189251Ssam 1380189251Ssamstatic int wps_build_uuid_r(struct wps_data *wps, struct wpabuf *msg) 1381189251Ssam{ 1382189251Ssam wpa_printf(MSG_DEBUG, "WPS: * UUID-R"); 1383189251Ssam wpabuf_put_be16(msg, ATTR_UUID_R); 1384189251Ssam wpabuf_put_be16(msg, WPS_UUID_LEN); 1385189251Ssam wpabuf_put_data(msg, wps->uuid_r, WPS_UUID_LEN); 1386189251Ssam return 0; 1387189251Ssam} 1388189251Ssam 1389189251Ssam 1390189251Ssamstatic int wps_build_r_hash(struct wps_data *wps, struct wpabuf *msg) 1391189251Ssam{ 1392189251Ssam u8 *hash; 1393189251Ssam const u8 *addr[4]; 1394189251Ssam size_t len[4]; 1395189251Ssam 1396252726Srpaulo if (random_get_bytes(wps->snonce, 2 * WPS_SECRET_NONCE_LEN) < 0) 1397189251Ssam return -1; 1398189251Ssam wpa_hexdump(MSG_DEBUG, "WPS: R-S1", wps->snonce, WPS_SECRET_NONCE_LEN); 1399189251Ssam wpa_hexdump(MSG_DEBUG, "WPS: R-S2", 1400189251Ssam wps->snonce + WPS_SECRET_NONCE_LEN, WPS_SECRET_NONCE_LEN); 1401189251Ssam 1402189251Ssam if (wps->dh_pubkey_e == NULL || wps->dh_pubkey_r == NULL) { 1403189251Ssam wpa_printf(MSG_DEBUG, "WPS: DH public keys not available for " 1404189251Ssam "R-Hash derivation"); 1405189251Ssam return -1; 1406189251Ssam } 1407189251Ssam 1408189251Ssam wpa_printf(MSG_DEBUG, "WPS: * R-Hash1"); 1409189251Ssam wpabuf_put_be16(msg, ATTR_R_HASH1); 1410189251Ssam wpabuf_put_be16(msg, SHA256_MAC_LEN); 1411189251Ssam hash = wpabuf_put(msg, SHA256_MAC_LEN); 1412189251Ssam /* R-Hash1 = HMAC_AuthKey(R-S1 || PSK1 || PK_E || PK_R) */ 1413189251Ssam addr[0] = wps->snonce; 1414189251Ssam len[0] = WPS_SECRET_NONCE_LEN; 1415189251Ssam addr[1] = wps->psk1; 1416189251Ssam len[1] = WPS_PSK_LEN; 1417189251Ssam addr[2] = wpabuf_head(wps->dh_pubkey_e); 1418189251Ssam len[2] = wpabuf_len(wps->dh_pubkey_e); 1419189251Ssam addr[3] = wpabuf_head(wps->dh_pubkey_r); 1420189251Ssam len[3] = wpabuf_len(wps->dh_pubkey_r); 1421189251Ssam hmac_sha256_vector(wps->authkey, WPS_AUTHKEY_LEN, 4, addr, len, hash); 1422189251Ssam wpa_hexdump(MSG_DEBUG, "WPS: R-Hash1", hash, SHA256_MAC_LEN); 1423189251Ssam 1424189251Ssam wpa_printf(MSG_DEBUG, "WPS: * R-Hash2"); 1425189251Ssam wpabuf_put_be16(msg, ATTR_R_HASH2); 1426189251Ssam wpabuf_put_be16(msg, SHA256_MAC_LEN); 1427189251Ssam hash = wpabuf_put(msg, SHA256_MAC_LEN); 1428189251Ssam /* R-Hash2 = HMAC_AuthKey(R-S2 || PSK2 || PK_E || PK_R) */ 1429189251Ssam addr[0] = wps->snonce + WPS_SECRET_NONCE_LEN; 1430189251Ssam addr[1] = wps->psk2; 1431189251Ssam hmac_sha256_vector(wps->authkey, WPS_AUTHKEY_LEN, 4, addr, len, hash); 1432189251Ssam wpa_hexdump(MSG_DEBUG, "WPS: R-Hash2", hash, SHA256_MAC_LEN); 1433189251Ssam 1434189251Ssam return 0; 1435189251Ssam} 1436189251Ssam 1437189251Ssam 1438189251Ssamstatic int wps_build_r_snonce1(struct wps_data *wps, struct wpabuf *msg) 1439189251Ssam{ 1440189251Ssam wpa_printf(MSG_DEBUG, "WPS: * R-SNonce1"); 1441189251Ssam wpabuf_put_be16(msg, ATTR_R_SNONCE1); 1442189251Ssam wpabuf_put_be16(msg, WPS_SECRET_NONCE_LEN); 1443189251Ssam wpabuf_put_data(msg, wps->snonce, WPS_SECRET_NONCE_LEN); 1444189251Ssam return 0; 1445189251Ssam} 1446189251Ssam 1447189251Ssam 1448189251Ssamstatic int wps_build_r_snonce2(struct wps_data *wps, struct wpabuf *msg) 1449189251Ssam{ 1450189251Ssam wpa_printf(MSG_DEBUG, "WPS: * R-SNonce2"); 1451189251Ssam wpabuf_put_be16(msg, ATTR_R_SNONCE2); 1452189251Ssam wpabuf_put_be16(msg, WPS_SECRET_NONCE_LEN); 1453189251Ssam wpabuf_put_data(msg, wps->snonce + WPS_SECRET_NONCE_LEN, 1454189251Ssam WPS_SECRET_NONCE_LEN); 1455189251Ssam return 0; 1456189251Ssam} 1457189251Ssam 1458189251Ssam 1459189251Ssamstatic int wps_build_cred_network_idx(struct wpabuf *msg, 1460214734Srpaulo const struct wps_credential *cred) 1461189251Ssam{ 1462252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: * Network Index (1)"); 1463189251Ssam wpabuf_put_be16(msg, ATTR_NETWORK_INDEX); 1464189251Ssam wpabuf_put_be16(msg, 1); 1465189251Ssam wpabuf_put_u8(msg, 1); 1466189251Ssam return 0; 1467189251Ssam} 1468189251Ssam 1469189251Ssam 1470189251Ssamstatic int wps_build_cred_ssid(struct wpabuf *msg, 1471214734Srpaulo const struct wps_credential *cred) 1472189251Ssam{ 1473189251Ssam wpa_printf(MSG_DEBUG, "WPS: * SSID"); 1474252726Srpaulo wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID for Credential", 1475252726Srpaulo cred->ssid, cred->ssid_len); 1476189251Ssam wpabuf_put_be16(msg, ATTR_SSID); 1477189251Ssam wpabuf_put_be16(msg, cred->ssid_len); 1478189251Ssam wpabuf_put_data(msg, cred->ssid, cred->ssid_len); 1479189251Ssam return 0; 1480189251Ssam} 1481189251Ssam 1482189251Ssam 1483189251Ssamstatic int wps_build_cred_auth_type(struct wpabuf *msg, 1484214734Srpaulo const struct wps_credential *cred) 1485189251Ssam{ 1486189251Ssam wpa_printf(MSG_DEBUG, "WPS: * Authentication Type (0x%x)", 1487189251Ssam cred->auth_type); 1488189251Ssam wpabuf_put_be16(msg, ATTR_AUTH_TYPE); 1489189251Ssam wpabuf_put_be16(msg, 2); 1490189251Ssam wpabuf_put_be16(msg, cred->auth_type); 1491189251Ssam return 0; 1492189251Ssam} 1493189251Ssam 1494189251Ssam 1495189251Ssamstatic int wps_build_cred_encr_type(struct wpabuf *msg, 1496214734Srpaulo const struct wps_credential *cred) 1497189251Ssam{ 1498189251Ssam wpa_printf(MSG_DEBUG, "WPS: * Encryption Type (0x%x)", 1499189251Ssam cred->encr_type); 1500189251Ssam wpabuf_put_be16(msg, ATTR_ENCR_TYPE); 1501189251Ssam wpabuf_put_be16(msg, 2); 1502189251Ssam wpabuf_put_be16(msg, cred->encr_type); 1503189251Ssam return 0; 1504189251Ssam} 1505189251Ssam 1506189251Ssam 1507189251Ssamstatic int wps_build_cred_network_key(struct wpabuf *msg, 1508214734Srpaulo const struct wps_credential *cred) 1509189251Ssam{ 1510214734Srpaulo wpa_printf(MSG_DEBUG, "WPS: * Network Key (len=%d)", 1511214734Srpaulo (int) cred->key_len); 1512252726Srpaulo wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key", 1513252726Srpaulo cred->key, cred->key_len); 1514189251Ssam wpabuf_put_be16(msg, ATTR_NETWORK_KEY); 1515189251Ssam wpabuf_put_be16(msg, cred->key_len); 1516189251Ssam wpabuf_put_data(msg, cred->key, cred->key_len); 1517189251Ssam return 0; 1518189251Ssam} 1519189251Ssam 1520189251Ssam 1521189251Ssamstatic int wps_build_cred_mac_addr(struct wpabuf *msg, 1522214734Srpaulo const struct wps_credential *cred) 1523189251Ssam{ 1524189251Ssam wpa_printf(MSG_DEBUG, "WPS: * MAC Address (" MACSTR ")", 1525189251Ssam MAC2STR(cred->mac_addr)); 1526189251Ssam wpabuf_put_be16(msg, ATTR_MAC_ADDR); 1527189251Ssam wpabuf_put_be16(msg, ETH_ALEN); 1528189251Ssam wpabuf_put_data(msg, cred->mac_addr, ETH_ALEN); 1529189251Ssam return 0; 1530189251Ssam} 1531189251Ssam 1532189251Ssam 1533189251Ssamstatic int wps_build_credential(struct wpabuf *msg, 1534214734Srpaulo const struct wps_credential *cred) 1535189251Ssam{ 1536189251Ssam if (wps_build_cred_network_idx(msg, cred) || 1537189251Ssam wps_build_cred_ssid(msg, cred) || 1538189251Ssam wps_build_cred_auth_type(msg, cred) || 1539189251Ssam wps_build_cred_encr_type(msg, cred) || 1540189251Ssam wps_build_cred_network_key(msg, cred) || 1541189251Ssam wps_build_cred_mac_addr(msg, cred)) 1542189251Ssam return -1; 1543189251Ssam return 0; 1544189251Ssam} 1545189251Ssam 1546189251Ssam 1547252726Srpauloint wps_build_credential_wrap(struct wpabuf *msg, 1548252726Srpaulo const struct wps_credential *cred) 1549252726Srpaulo{ 1550252726Srpaulo struct wpabuf *wbuf; 1551252726Srpaulo wbuf = wpabuf_alloc(200); 1552252726Srpaulo if (wbuf == NULL) 1553252726Srpaulo return -1; 1554252726Srpaulo if (wps_build_credential(wbuf, cred)) { 1555252726Srpaulo wpabuf_free(wbuf); 1556252726Srpaulo return -1; 1557252726Srpaulo } 1558252726Srpaulo wpabuf_put_be16(msg, ATTR_CRED); 1559252726Srpaulo wpabuf_put_be16(msg, wpabuf_len(wbuf)); 1560252726Srpaulo wpabuf_put_buf(msg, wbuf); 1561252726Srpaulo wpabuf_free(wbuf); 1562252726Srpaulo return 0; 1563252726Srpaulo} 1564252726Srpaulo 1565252726Srpaulo 1566214734Srpauloint wps_build_cred(struct wps_data *wps, struct wpabuf *msg) 1567189251Ssam{ 1568189251Ssam struct wpabuf *cred; 1569189251Ssam 1570189251Ssam if (wps->wps->registrar->skip_cred_build) 1571189251Ssam goto skip_cred_build; 1572189251Ssam 1573189251Ssam wpa_printf(MSG_DEBUG, "WPS: * Credential"); 1574214734Srpaulo if (wps->use_cred) { 1575214734Srpaulo os_memcpy(&wps->cred, wps->use_cred, sizeof(wps->cred)); 1576214734Srpaulo goto use_provided; 1577214734Srpaulo } 1578189251Ssam os_memset(&wps->cred, 0, sizeof(wps->cred)); 1579189251Ssam 1580189251Ssam os_memcpy(wps->cred.ssid, wps->wps->ssid, wps->wps->ssid_len); 1581189251Ssam wps->cred.ssid_len = wps->wps->ssid_len; 1582189251Ssam 1583189251Ssam /* Select the best authentication and encryption type */ 1584189251Ssam if (wps->auth_type & WPS_AUTH_WPA2PSK) 1585189251Ssam wps->auth_type = WPS_AUTH_WPA2PSK; 1586189251Ssam else if (wps->auth_type & WPS_AUTH_WPAPSK) 1587189251Ssam wps->auth_type = WPS_AUTH_WPAPSK; 1588189251Ssam else if (wps->auth_type & WPS_AUTH_OPEN) 1589189251Ssam wps->auth_type = WPS_AUTH_OPEN; 1590189251Ssam else if (wps->auth_type & WPS_AUTH_SHARED) 1591189251Ssam wps->auth_type = WPS_AUTH_SHARED; 1592189251Ssam else { 1593189251Ssam wpa_printf(MSG_DEBUG, "WPS: Unsupported auth_type 0x%x", 1594189251Ssam wps->auth_type); 1595189251Ssam return -1; 1596189251Ssam } 1597189251Ssam wps->cred.auth_type = wps->auth_type; 1598189251Ssam 1599189251Ssam if (wps->auth_type == WPS_AUTH_WPA2PSK || 1600189251Ssam wps->auth_type == WPS_AUTH_WPAPSK) { 1601189251Ssam if (wps->encr_type & WPS_ENCR_AES) 1602189251Ssam wps->encr_type = WPS_ENCR_AES; 1603189251Ssam else if (wps->encr_type & WPS_ENCR_TKIP) 1604189251Ssam wps->encr_type = WPS_ENCR_TKIP; 1605189251Ssam else { 1606189251Ssam wpa_printf(MSG_DEBUG, "WPS: No suitable encryption " 1607189251Ssam "type for WPA/WPA2"); 1608189251Ssam return -1; 1609189251Ssam } 1610189251Ssam } else { 1611189251Ssam if (wps->encr_type & WPS_ENCR_WEP) 1612189251Ssam wps->encr_type = WPS_ENCR_WEP; 1613189251Ssam else if (wps->encr_type & WPS_ENCR_NONE) 1614189251Ssam wps->encr_type = WPS_ENCR_NONE; 1615189251Ssam else { 1616189251Ssam wpa_printf(MSG_DEBUG, "WPS: No suitable encryption " 1617189251Ssam "type for non-WPA/WPA2 mode"); 1618189251Ssam return -1; 1619189251Ssam } 1620189251Ssam } 1621189251Ssam wps->cred.encr_type = wps->encr_type; 1622209158Srpaulo /* 1623209158Srpaulo * Set MAC address in the Credential to be the Enrollee's MAC address 1624209158Srpaulo */ 1625209158Srpaulo os_memcpy(wps->cred.mac_addr, wps->mac_addr_e, ETH_ALEN); 1626189251Ssam 1627189251Ssam if (wps->wps->wps_state == WPS_STATE_NOT_CONFIGURED && wps->wps->ap && 1628189251Ssam !wps->wps->registrar->disable_auto_conf) { 1629189251Ssam u8 r[16]; 1630189251Ssam /* Generate a random passphrase */ 1631252726Srpaulo if (random_get_bytes(r, sizeof(r)) < 0) 1632189251Ssam return -1; 1633189251Ssam os_free(wps->new_psk); 1634189251Ssam wps->new_psk = base64_encode(r, sizeof(r), &wps->new_psk_len); 1635189251Ssam if (wps->new_psk == NULL) 1636189251Ssam return -1; 1637189251Ssam wps->new_psk_len--; /* remove newline */ 1638189251Ssam while (wps->new_psk_len && 1639189251Ssam wps->new_psk[wps->new_psk_len - 1] == '=') 1640189251Ssam wps->new_psk_len--; 1641189251Ssam wpa_hexdump_ascii_key(MSG_DEBUG, "WPS: Generated passphrase", 1642189251Ssam wps->new_psk, wps->new_psk_len); 1643189251Ssam os_memcpy(wps->cred.key, wps->new_psk, wps->new_psk_len); 1644189251Ssam wps->cred.key_len = wps->new_psk_len; 1645214734Srpaulo } else if (wps->use_psk_key && wps->wps->psk_set) { 1646214734Srpaulo char hex[65]; 1647214734Srpaulo wpa_printf(MSG_DEBUG, "WPS: Use PSK format for Network Key"); 1648214734Srpaulo wpa_snprintf_hex(hex, sizeof(hex), wps->wps->psk, 32); 1649214734Srpaulo os_memcpy(wps->cred.key, hex, 32 * 2); 1650214734Srpaulo wps->cred.key_len = 32 * 2; 1651189251Ssam } else if (wps->wps->network_key) { 1652189251Ssam os_memcpy(wps->cred.key, wps->wps->network_key, 1653189251Ssam wps->wps->network_key_len); 1654189251Ssam wps->cred.key_len = wps->wps->network_key_len; 1655189251Ssam } else if (wps->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) { 1656189251Ssam char hex[65]; 1657189251Ssam /* Generate a random per-device PSK */ 1658189251Ssam os_free(wps->new_psk); 1659189251Ssam wps->new_psk_len = 32; 1660189251Ssam wps->new_psk = os_malloc(wps->new_psk_len); 1661189251Ssam if (wps->new_psk == NULL) 1662189251Ssam return -1; 1663252726Srpaulo if (random_get_bytes(wps->new_psk, wps->new_psk_len) < 0) { 1664189251Ssam os_free(wps->new_psk); 1665189251Ssam wps->new_psk = NULL; 1666189251Ssam return -1; 1667189251Ssam } 1668189251Ssam wpa_hexdump_key(MSG_DEBUG, "WPS: Generated per-device PSK", 1669189251Ssam wps->new_psk, wps->new_psk_len); 1670189251Ssam wpa_snprintf_hex(hex, sizeof(hex), wps->new_psk, 1671189251Ssam wps->new_psk_len); 1672189251Ssam os_memcpy(wps->cred.key, hex, wps->new_psk_len * 2); 1673189251Ssam wps->cred.key_len = wps->new_psk_len * 2; 1674189251Ssam } 1675189251Ssam 1676214734Srpaulouse_provided: 1677252726Srpaulo#ifdef CONFIG_WPS_TESTING 1678252726Srpaulo if (wps_testing_dummy_cred) 1679252726Srpaulo cred = wpabuf_alloc(200); 1680252726Srpaulo else 1681252726Srpaulo cred = NULL; 1682252726Srpaulo if (cred) { 1683252726Srpaulo struct wps_credential dummy; 1684252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Add dummy credential"); 1685252726Srpaulo os_memset(&dummy, 0, sizeof(dummy)); 1686252726Srpaulo os_memcpy(dummy.ssid, "dummy", 5); 1687252726Srpaulo dummy.ssid_len = 5; 1688252726Srpaulo dummy.auth_type = WPS_AUTH_WPA2PSK; 1689252726Srpaulo dummy.encr_type = WPS_ENCR_AES; 1690252726Srpaulo os_memcpy(dummy.key, "dummy psk", 9); 1691252726Srpaulo dummy.key_len = 9; 1692252726Srpaulo os_memcpy(dummy.mac_addr, wps->mac_addr_e, ETH_ALEN); 1693252726Srpaulo wps_build_credential(cred, &dummy); 1694252726Srpaulo wpa_hexdump_buf(MSG_DEBUG, "WPS: Dummy Credential", cred); 1695252726Srpaulo 1696252726Srpaulo wpabuf_put_be16(msg, ATTR_CRED); 1697252726Srpaulo wpabuf_put_be16(msg, wpabuf_len(cred)); 1698252726Srpaulo wpabuf_put_buf(msg, cred); 1699252726Srpaulo 1700252726Srpaulo wpabuf_free(cred); 1701252726Srpaulo } 1702252726Srpaulo#endif /* CONFIG_WPS_TESTING */ 1703252726Srpaulo 1704189251Ssam cred = wpabuf_alloc(200); 1705189251Ssam if (cred == NULL) 1706189251Ssam return -1; 1707189251Ssam 1708189251Ssam if (wps_build_credential(cred, &wps->cred)) { 1709189251Ssam wpabuf_free(cred); 1710189251Ssam return -1; 1711189251Ssam } 1712189251Ssam 1713189251Ssam wpabuf_put_be16(msg, ATTR_CRED); 1714189251Ssam wpabuf_put_be16(msg, wpabuf_len(cred)); 1715189251Ssam wpabuf_put_buf(msg, cred); 1716189251Ssam wpabuf_free(cred); 1717189251Ssam 1718189251Ssamskip_cred_build: 1719189251Ssam if (wps->wps->registrar->extra_cred) { 1720189251Ssam wpa_printf(MSG_DEBUG, "WPS: * Credential (pre-configured)"); 1721189251Ssam wpabuf_put_buf(msg, wps->wps->registrar->extra_cred); 1722189251Ssam } 1723189251Ssam 1724189251Ssam return 0; 1725189251Ssam} 1726189251Ssam 1727189251Ssam 1728189251Ssamstatic int wps_build_ap_settings(struct wps_data *wps, struct wpabuf *msg) 1729189251Ssam{ 1730189251Ssam wpa_printf(MSG_DEBUG, "WPS: * AP Settings"); 1731189251Ssam 1732189251Ssam if (wps_build_credential(msg, &wps->cred)) 1733189251Ssam return -1; 1734189251Ssam 1735189251Ssam return 0; 1736189251Ssam} 1737189251Ssam 1738189251Ssam 1739252726Srpaulostatic struct wpabuf * wps_build_ap_cred(struct wps_data *wps) 1740252726Srpaulo{ 1741252726Srpaulo struct wpabuf *msg, *plain; 1742252726Srpaulo 1743252726Srpaulo msg = wpabuf_alloc(1000); 1744252726Srpaulo if (msg == NULL) 1745252726Srpaulo return NULL; 1746252726Srpaulo 1747252726Srpaulo plain = wpabuf_alloc(200); 1748252726Srpaulo if (plain == NULL) { 1749252726Srpaulo wpabuf_free(msg); 1750252726Srpaulo return NULL; 1751252726Srpaulo } 1752252726Srpaulo 1753252726Srpaulo if (wps_build_ap_settings(wps, plain)) { 1754252726Srpaulo wpabuf_free(plain); 1755252726Srpaulo wpabuf_free(msg); 1756252726Srpaulo return NULL; 1757252726Srpaulo } 1758252726Srpaulo 1759252726Srpaulo wpabuf_put_be16(msg, ATTR_CRED); 1760252726Srpaulo wpabuf_put_be16(msg, wpabuf_len(plain)); 1761252726Srpaulo wpabuf_put_buf(msg, plain); 1762252726Srpaulo wpabuf_free(plain); 1763252726Srpaulo 1764252726Srpaulo return msg; 1765252726Srpaulo} 1766252726Srpaulo 1767252726Srpaulo 1768189251Ssamstatic struct wpabuf * wps_build_m2(struct wps_data *wps) 1769189251Ssam{ 1770189251Ssam struct wpabuf *msg; 1771189251Ssam 1772252726Srpaulo if (random_get_bytes(wps->nonce_r, WPS_NONCE_LEN) < 0) 1773189251Ssam return NULL; 1774189251Ssam wpa_hexdump(MSG_DEBUG, "WPS: Registrar Nonce", 1775189251Ssam wps->nonce_r, WPS_NONCE_LEN); 1776189251Ssam wpa_hexdump(MSG_DEBUG, "WPS: UUID-R", wps->uuid_r, WPS_UUID_LEN); 1777189251Ssam 1778189251Ssam wpa_printf(MSG_DEBUG, "WPS: Building Message M2"); 1779189251Ssam msg = wpabuf_alloc(1000); 1780189251Ssam if (msg == NULL) 1781189251Ssam return NULL; 1782189251Ssam 1783189251Ssam if (wps_build_version(msg) || 1784189251Ssam wps_build_msg_type(msg, WPS_M2) || 1785189251Ssam wps_build_enrollee_nonce(wps, msg) || 1786189251Ssam wps_build_registrar_nonce(wps, msg) || 1787189251Ssam wps_build_uuid_r(wps, msg) || 1788189251Ssam wps_build_public_key(wps, msg) || 1789189251Ssam wps_derive_keys(wps) || 1790189251Ssam wps_build_auth_type_flags(wps, msg) || 1791189251Ssam wps_build_encr_type_flags(wps, msg) || 1792189251Ssam wps_build_conn_type_flags(wps, msg) || 1793189251Ssam wps_build_config_methods_r(wps->wps->registrar, msg) || 1794189251Ssam wps_build_device_attrs(&wps->wps->dev, msg) || 1795189251Ssam wps_build_rf_bands(&wps->wps->dev, msg) || 1796189251Ssam wps_build_assoc_state(wps, msg) || 1797189251Ssam wps_build_config_error(msg, WPS_CFG_NO_ERROR) || 1798189251Ssam wps_build_dev_password_id(msg, wps->dev_pw_id) || 1799189251Ssam wps_build_os_version(&wps->wps->dev, msg) || 1800252726Srpaulo wps_build_wfa_ext(msg, 0, NULL, 0) || 1801189251Ssam wps_build_authenticator(wps, msg)) { 1802189251Ssam wpabuf_free(msg); 1803189251Ssam return NULL; 1804189251Ssam } 1805189251Ssam 1806214734Srpaulo wps->int_reg = 1; 1807189251Ssam wps->state = RECV_M3; 1808189251Ssam return msg; 1809189251Ssam} 1810189251Ssam 1811189251Ssam 1812189251Ssamstatic struct wpabuf * wps_build_m2d(struct wps_data *wps) 1813189251Ssam{ 1814189251Ssam struct wpabuf *msg; 1815209158Srpaulo u16 err = wps->config_error; 1816189251Ssam 1817189251Ssam wpa_printf(MSG_DEBUG, "WPS: Building Message M2D"); 1818189251Ssam msg = wpabuf_alloc(1000); 1819189251Ssam if (msg == NULL) 1820189251Ssam return NULL; 1821189251Ssam 1822209158Srpaulo if (wps->wps->ap && wps->wps->ap_setup_locked && 1823209158Srpaulo err == WPS_CFG_NO_ERROR) 1824189251Ssam err = WPS_CFG_SETUP_LOCKED; 1825189251Ssam 1826189251Ssam if (wps_build_version(msg) || 1827189251Ssam wps_build_msg_type(msg, WPS_M2D) || 1828189251Ssam wps_build_enrollee_nonce(wps, msg) || 1829189251Ssam wps_build_registrar_nonce(wps, msg) || 1830189251Ssam wps_build_uuid_r(wps, msg) || 1831189251Ssam wps_build_auth_type_flags(wps, msg) || 1832189251Ssam wps_build_encr_type_flags(wps, msg) || 1833189251Ssam wps_build_conn_type_flags(wps, msg) || 1834189251Ssam wps_build_config_methods_r(wps->wps->registrar, msg) || 1835189251Ssam wps_build_device_attrs(&wps->wps->dev, msg) || 1836189251Ssam wps_build_rf_bands(&wps->wps->dev, msg) || 1837189251Ssam wps_build_assoc_state(wps, msg) || 1838189251Ssam wps_build_config_error(msg, err) || 1839252726Srpaulo wps_build_os_version(&wps->wps->dev, msg) || 1840252726Srpaulo wps_build_wfa_ext(msg, 0, NULL, 0)) { 1841189251Ssam wpabuf_free(msg); 1842189251Ssam return NULL; 1843189251Ssam } 1844189251Ssam 1845189251Ssam wps->state = RECV_M2D_ACK; 1846189251Ssam return msg; 1847189251Ssam} 1848189251Ssam 1849189251Ssam 1850189251Ssamstatic struct wpabuf * wps_build_m4(struct wps_data *wps) 1851189251Ssam{ 1852189251Ssam struct wpabuf *msg, *plain; 1853189251Ssam 1854189251Ssam wpa_printf(MSG_DEBUG, "WPS: Building Message M4"); 1855189251Ssam 1856189251Ssam wps_derive_psk(wps, wps->dev_password, wps->dev_password_len); 1857189251Ssam 1858189251Ssam plain = wpabuf_alloc(200); 1859189251Ssam if (plain == NULL) 1860189251Ssam return NULL; 1861189251Ssam 1862189251Ssam msg = wpabuf_alloc(1000); 1863189251Ssam if (msg == NULL) { 1864189251Ssam wpabuf_free(plain); 1865189251Ssam return NULL; 1866189251Ssam } 1867189251Ssam 1868189251Ssam if (wps_build_version(msg) || 1869189251Ssam wps_build_msg_type(msg, WPS_M4) || 1870189251Ssam wps_build_enrollee_nonce(wps, msg) || 1871189251Ssam wps_build_r_hash(wps, msg) || 1872189251Ssam wps_build_r_snonce1(wps, plain) || 1873189251Ssam wps_build_key_wrap_auth(wps, plain) || 1874189251Ssam wps_build_encr_settings(wps, msg, plain) || 1875252726Srpaulo wps_build_wfa_ext(msg, 0, NULL, 0) || 1876189251Ssam wps_build_authenticator(wps, msg)) { 1877189251Ssam wpabuf_free(plain); 1878189251Ssam wpabuf_free(msg); 1879189251Ssam return NULL; 1880189251Ssam } 1881189251Ssam wpabuf_free(plain); 1882189251Ssam 1883189251Ssam wps->state = RECV_M5; 1884189251Ssam return msg; 1885189251Ssam} 1886189251Ssam 1887189251Ssam 1888189251Ssamstatic struct wpabuf * wps_build_m6(struct wps_data *wps) 1889189251Ssam{ 1890189251Ssam struct wpabuf *msg, *plain; 1891189251Ssam 1892189251Ssam wpa_printf(MSG_DEBUG, "WPS: Building Message M6"); 1893189251Ssam 1894189251Ssam plain = wpabuf_alloc(200); 1895189251Ssam if (plain == NULL) 1896189251Ssam return NULL; 1897189251Ssam 1898189251Ssam msg = wpabuf_alloc(1000); 1899189251Ssam if (msg == NULL) { 1900189251Ssam wpabuf_free(plain); 1901189251Ssam return NULL; 1902189251Ssam } 1903189251Ssam 1904189251Ssam if (wps_build_version(msg) || 1905189251Ssam wps_build_msg_type(msg, WPS_M6) || 1906189251Ssam wps_build_enrollee_nonce(wps, msg) || 1907189251Ssam wps_build_r_snonce2(wps, plain) || 1908189251Ssam wps_build_key_wrap_auth(wps, plain) || 1909189251Ssam wps_build_encr_settings(wps, msg, plain) || 1910252726Srpaulo wps_build_wfa_ext(msg, 0, NULL, 0) || 1911189251Ssam wps_build_authenticator(wps, msg)) { 1912189251Ssam wpabuf_free(plain); 1913189251Ssam wpabuf_free(msg); 1914189251Ssam return NULL; 1915189251Ssam } 1916189251Ssam wpabuf_free(plain); 1917189251Ssam 1918189251Ssam wps->wps_pin_revealed = 1; 1919189251Ssam wps->state = RECV_M7; 1920189251Ssam return msg; 1921189251Ssam} 1922189251Ssam 1923189251Ssam 1924189251Ssamstatic struct wpabuf * wps_build_m8(struct wps_data *wps) 1925189251Ssam{ 1926189251Ssam struct wpabuf *msg, *plain; 1927189251Ssam 1928189251Ssam wpa_printf(MSG_DEBUG, "WPS: Building Message M8"); 1929189251Ssam 1930189251Ssam plain = wpabuf_alloc(500); 1931189251Ssam if (plain == NULL) 1932189251Ssam return NULL; 1933189251Ssam 1934189251Ssam msg = wpabuf_alloc(1000); 1935189251Ssam if (msg == NULL) { 1936189251Ssam wpabuf_free(plain); 1937189251Ssam return NULL; 1938189251Ssam } 1939189251Ssam 1940189251Ssam if (wps_build_version(msg) || 1941189251Ssam wps_build_msg_type(msg, WPS_M8) || 1942189251Ssam wps_build_enrollee_nonce(wps, msg) || 1943214734Srpaulo ((wps->wps->ap || wps->er) && wps_build_cred(wps, plain)) || 1944214734Srpaulo (!wps->wps->ap && !wps->er && wps_build_ap_settings(wps, plain)) || 1945189251Ssam wps_build_key_wrap_auth(wps, plain) || 1946189251Ssam wps_build_encr_settings(wps, msg, plain) || 1947252726Srpaulo wps_build_wfa_ext(msg, 0, NULL, 0) || 1948189251Ssam wps_build_authenticator(wps, msg)) { 1949189251Ssam wpabuf_free(plain); 1950189251Ssam wpabuf_free(msg); 1951189251Ssam return NULL; 1952189251Ssam } 1953189251Ssam wpabuf_free(plain); 1954189251Ssam 1955189251Ssam wps->state = RECV_DONE; 1956189251Ssam return msg; 1957189251Ssam} 1958189251Ssam 1959189251Ssam 1960189251Ssamstruct wpabuf * wps_registrar_get_msg(struct wps_data *wps, 1961189251Ssam enum wsc_op_code *op_code) 1962189251Ssam{ 1963189251Ssam struct wpabuf *msg; 1964189251Ssam 1965189251Ssam#ifdef CONFIG_WPS_UPNP 1966214734Srpaulo if (!wps->int_reg && wps->wps->wps_upnp) { 1967189251Ssam struct upnp_pending_message *p, *prev = NULL; 1968189251Ssam if (wps->ext_reg > 1) 1969189251Ssam wps_registrar_free_pending_m2(wps->wps); 1970189251Ssam p = wps->wps->upnp_msgs; 1971189251Ssam /* TODO: check pending message MAC address */ 1972189251Ssam while (p && p->next) { 1973189251Ssam prev = p; 1974189251Ssam p = p->next; 1975189251Ssam } 1976189251Ssam if (p) { 1977189251Ssam wpa_printf(MSG_DEBUG, "WPS: Use pending message from " 1978189251Ssam "UPnP"); 1979189251Ssam if (prev) 1980189251Ssam prev->next = NULL; 1981189251Ssam else 1982189251Ssam wps->wps->upnp_msgs = NULL; 1983189251Ssam msg = p->msg; 1984209158Srpaulo switch (p->type) { 1985209158Srpaulo case WPS_WSC_ACK: 1986209158Srpaulo *op_code = WSC_ACK; 1987209158Srpaulo break; 1988209158Srpaulo case WPS_WSC_NACK: 1989209158Srpaulo *op_code = WSC_NACK; 1990209158Srpaulo break; 1991209158Srpaulo default: 1992209158Srpaulo *op_code = WSC_MSG; 1993209158Srpaulo break; 1994209158Srpaulo } 1995189251Ssam os_free(p); 1996189251Ssam if (wps->ext_reg == 0) 1997189251Ssam wps->ext_reg = 1; 1998189251Ssam return msg; 1999189251Ssam } 2000189251Ssam } 2001189251Ssam if (wps->ext_reg) { 2002189251Ssam wpa_printf(MSG_DEBUG, "WPS: Using external Registrar, but no " 2003189251Ssam "pending message available"); 2004189251Ssam return NULL; 2005189251Ssam } 2006189251Ssam#endif /* CONFIG_WPS_UPNP */ 2007189251Ssam 2008189251Ssam switch (wps->state) { 2009189251Ssam case SEND_M2: 2010189251Ssam if (wps_get_dev_password(wps) < 0) 2011189251Ssam msg = wps_build_m2d(wps); 2012189251Ssam else 2013189251Ssam msg = wps_build_m2(wps); 2014189251Ssam *op_code = WSC_MSG; 2015189251Ssam break; 2016189251Ssam case SEND_M2D: 2017189251Ssam msg = wps_build_m2d(wps); 2018189251Ssam *op_code = WSC_MSG; 2019189251Ssam break; 2020189251Ssam case SEND_M4: 2021189251Ssam msg = wps_build_m4(wps); 2022189251Ssam *op_code = WSC_MSG; 2023189251Ssam break; 2024189251Ssam case SEND_M6: 2025189251Ssam msg = wps_build_m6(wps); 2026189251Ssam *op_code = WSC_MSG; 2027189251Ssam break; 2028189251Ssam case SEND_M8: 2029189251Ssam msg = wps_build_m8(wps); 2030189251Ssam *op_code = WSC_MSG; 2031189251Ssam break; 2032189251Ssam case RECV_DONE: 2033189251Ssam msg = wps_build_wsc_ack(wps); 2034189251Ssam *op_code = WSC_ACK; 2035189251Ssam break; 2036189251Ssam case SEND_WSC_NACK: 2037189251Ssam msg = wps_build_wsc_nack(wps); 2038189251Ssam *op_code = WSC_NACK; 2039189251Ssam break; 2040189251Ssam default: 2041189251Ssam wpa_printf(MSG_DEBUG, "WPS: Unsupported state %d for building " 2042189251Ssam "a message", wps->state); 2043189251Ssam msg = NULL; 2044189251Ssam break; 2045189251Ssam } 2046189251Ssam 2047189251Ssam if (*op_code == WSC_MSG && msg) { 2048189251Ssam /* Save a copy of the last message for Authenticator derivation 2049189251Ssam */ 2050189251Ssam wpabuf_free(wps->last_msg); 2051189251Ssam wps->last_msg = wpabuf_dup(msg); 2052189251Ssam } 2053189251Ssam 2054189251Ssam return msg; 2055189251Ssam} 2056189251Ssam 2057189251Ssam 2058189251Ssamstatic int wps_process_enrollee_nonce(struct wps_data *wps, const u8 *e_nonce) 2059189251Ssam{ 2060189251Ssam if (e_nonce == NULL) { 2061189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Enrollee Nonce received"); 2062189251Ssam return -1; 2063189251Ssam } 2064189251Ssam 2065189251Ssam os_memcpy(wps->nonce_e, e_nonce, WPS_NONCE_LEN); 2066189251Ssam wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Nonce", 2067189251Ssam wps->nonce_e, WPS_NONCE_LEN); 2068189251Ssam 2069189251Ssam return 0; 2070189251Ssam} 2071189251Ssam 2072189251Ssam 2073189251Ssamstatic int wps_process_registrar_nonce(struct wps_data *wps, const u8 *r_nonce) 2074189251Ssam{ 2075189251Ssam if (r_nonce == NULL) { 2076189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Registrar Nonce received"); 2077189251Ssam return -1; 2078189251Ssam } 2079189251Ssam 2080189251Ssam if (os_memcmp(wps->nonce_r, r_nonce, WPS_NONCE_LEN) != 0) { 2081189251Ssam wpa_printf(MSG_DEBUG, "WPS: Invalid Registrar Nonce received"); 2082189251Ssam return -1; 2083189251Ssam } 2084189251Ssam 2085189251Ssam return 0; 2086189251Ssam} 2087189251Ssam 2088189251Ssam 2089189251Ssamstatic int wps_process_uuid_e(struct wps_data *wps, const u8 *uuid_e) 2090189251Ssam{ 2091189251Ssam if (uuid_e == NULL) { 2092189251Ssam wpa_printf(MSG_DEBUG, "WPS: No UUID-E received"); 2093189251Ssam return -1; 2094189251Ssam } 2095189251Ssam 2096189251Ssam os_memcpy(wps->uuid_e, uuid_e, WPS_UUID_LEN); 2097189251Ssam wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", wps->uuid_e, WPS_UUID_LEN); 2098189251Ssam 2099189251Ssam return 0; 2100189251Ssam} 2101189251Ssam 2102189251Ssam 2103189251Ssamstatic int wps_process_dev_password_id(struct wps_data *wps, const u8 *pw_id) 2104189251Ssam{ 2105189251Ssam if (pw_id == NULL) { 2106189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Device Password ID received"); 2107189251Ssam return -1; 2108189251Ssam } 2109189251Ssam 2110189251Ssam wps->dev_pw_id = WPA_GET_BE16(pw_id); 2111189251Ssam wpa_printf(MSG_DEBUG, "WPS: Device Password ID %d", wps->dev_pw_id); 2112189251Ssam 2113189251Ssam return 0; 2114189251Ssam} 2115189251Ssam 2116189251Ssam 2117189251Ssamstatic int wps_process_e_hash1(struct wps_data *wps, const u8 *e_hash1) 2118189251Ssam{ 2119189251Ssam if (e_hash1 == NULL) { 2120189251Ssam wpa_printf(MSG_DEBUG, "WPS: No E-Hash1 received"); 2121189251Ssam return -1; 2122189251Ssam } 2123189251Ssam 2124189251Ssam os_memcpy(wps->peer_hash1, e_hash1, WPS_HASH_LEN); 2125189251Ssam wpa_hexdump(MSG_DEBUG, "WPS: E-Hash1", wps->peer_hash1, WPS_HASH_LEN); 2126189251Ssam 2127189251Ssam return 0; 2128189251Ssam} 2129189251Ssam 2130189251Ssam 2131189251Ssamstatic int wps_process_e_hash2(struct wps_data *wps, const u8 *e_hash2) 2132189251Ssam{ 2133189251Ssam if (e_hash2 == NULL) { 2134189251Ssam wpa_printf(MSG_DEBUG, "WPS: No E-Hash2 received"); 2135189251Ssam return -1; 2136189251Ssam } 2137189251Ssam 2138189251Ssam os_memcpy(wps->peer_hash2, e_hash2, WPS_HASH_LEN); 2139189251Ssam wpa_hexdump(MSG_DEBUG, "WPS: E-Hash2", wps->peer_hash2, WPS_HASH_LEN); 2140189251Ssam 2141189251Ssam return 0; 2142189251Ssam} 2143189251Ssam 2144189251Ssam 2145189251Ssamstatic int wps_process_e_snonce1(struct wps_data *wps, const u8 *e_snonce1) 2146189251Ssam{ 2147189251Ssam u8 hash[SHA256_MAC_LEN]; 2148189251Ssam const u8 *addr[4]; 2149189251Ssam size_t len[4]; 2150189251Ssam 2151189251Ssam if (e_snonce1 == NULL) { 2152189251Ssam wpa_printf(MSG_DEBUG, "WPS: No E-SNonce1 received"); 2153189251Ssam return -1; 2154189251Ssam } 2155189251Ssam 2156189251Ssam wpa_hexdump_key(MSG_DEBUG, "WPS: E-SNonce1", e_snonce1, 2157189251Ssam WPS_SECRET_NONCE_LEN); 2158189251Ssam 2159189251Ssam /* E-Hash1 = HMAC_AuthKey(E-S1 || PSK1 || PK_E || PK_R) */ 2160189251Ssam addr[0] = e_snonce1; 2161189251Ssam len[0] = WPS_SECRET_NONCE_LEN; 2162189251Ssam addr[1] = wps->psk1; 2163189251Ssam len[1] = WPS_PSK_LEN; 2164189251Ssam addr[2] = wpabuf_head(wps->dh_pubkey_e); 2165189251Ssam len[2] = wpabuf_len(wps->dh_pubkey_e); 2166189251Ssam addr[3] = wpabuf_head(wps->dh_pubkey_r); 2167189251Ssam len[3] = wpabuf_len(wps->dh_pubkey_r); 2168189251Ssam hmac_sha256_vector(wps->authkey, WPS_AUTHKEY_LEN, 4, addr, len, hash); 2169189251Ssam 2170189251Ssam if (os_memcmp(wps->peer_hash1, hash, WPS_HASH_LEN) != 0) { 2171189251Ssam wpa_printf(MSG_DEBUG, "WPS: E-Hash1 derived from E-S1 does " 2172189251Ssam "not match with the pre-committed value"); 2173189251Ssam wps->config_error = WPS_CFG_DEV_PASSWORD_AUTH_FAILURE; 2174189251Ssam wps_pwd_auth_fail_event(wps->wps, 0, 1); 2175189251Ssam return -1; 2176189251Ssam } 2177189251Ssam 2178189251Ssam wpa_printf(MSG_DEBUG, "WPS: Enrollee proved knowledge of the first " 2179189251Ssam "half of the device password"); 2180189251Ssam 2181189251Ssam return 0; 2182189251Ssam} 2183189251Ssam 2184189251Ssam 2185189251Ssamstatic int wps_process_e_snonce2(struct wps_data *wps, const u8 *e_snonce2) 2186189251Ssam{ 2187189251Ssam u8 hash[SHA256_MAC_LEN]; 2188189251Ssam const u8 *addr[4]; 2189189251Ssam size_t len[4]; 2190189251Ssam 2191189251Ssam if (e_snonce2 == NULL) { 2192189251Ssam wpa_printf(MSG_DEBUG, "WPS: No E-SNonce2 received"); 2193189251Ssam return -1; 2194189251Ssam } 2195189251Ssam 2196189251Ssam wpa_hexdump_key(MSG_DEBUG, "WPS: E-SNonce2", e_snonce2, 2197189251Ssam WPS_SECRET_NONCE_LEN); 2198189251Ssam 2199189251Ssam /* E-Hash2 = HMAC_AuthKey(E-S2 || PSK2 || PK_E || PK_R) */ 2200189251Ssam addr[0] = e_snonce2; 2201189251Ssam len[0] = WPS_SECRET_NONCE_LEN; 2202189251Ssam addr[1] = wps->psk2; 2203189251Ssam len[1] = WPS_PSK_LEN; 2204189251Ssam addr[2] = wpabuf_head(wps->dh_pubkey_e); 2205189251Ssam len[2] = wpabuf_len(wps->dh_pubkey_e); 2206189251Ssam addr[3] = wpabuf_head(wps->dh_pubkey_r); 2207189251Ssam len[3] = wpabuf_len(wps->dh_pubkey_r); 2208189251Ssam hmac_sha256_vector(wps->authkey, WPS_AUTHKEY_LEN, 4, addr, len, hash); 2209189251Ssam 2210189251Ssam if (os_memcmp(wps->peer_hash2, hash, WPS_HASH_LEN) != 0) { 2211189251Ssam wpa_printf(MSG_DEBUG, "WPS: E-Hash2 derived from E-S2 does " 2212189251Ssam "not match with the pre-committed value"); 2213189251Ssam wps_registrar_invalidate_pin(wps->wps->registrar, wps->uuid_e); 2214189251Ssam wps->config_error = WPS_CFG_DEV_PASSWORD_AUTH_FAILURE; 2215189251Ssam wps_pwd_auth_fail_event(wps->wps, 0, 2); 2216189251Ssam return -1; 2217189251Ssam } 2218189251Ssam 2219189251Ssam wpa_printf(MSG_DEBUG, "WPS: Enrollee proved knowledge of the second " 2220189251Ssam "half of the device password"); 2221189251Ssam wps->wps_pin_revealed = 0; 2222189251Ssam wps_registrar_unlock_pin(wps->wps->registrar, wps->uuid_e); 2223189251Ssam 2224252726Srpaulo /* 2225252726Srpaulo * In case wildcard PIN is used and WPS handshake succeeds in the first 2226252726Srpaulo * attempt, wps_registrar_unlock_pin() would not free the PIN, so make 2227252726Srpaulo * sure the PIN gets invalidated here. 2228252726Srpaulo */ 2229252726Srpaulo wps_registrar_invalidate_pin(wps->wps->registrar, wps->uuid_e); 2230252726Srpaulo 2231189251Ssam return 0; 2232189251Ssam} 2233189251Ssam 2234189251Ssam 2235189251Ssamstatic int wps_process_mac_addr(struct wps_data *wps, const u8 *mac_addr) 2236189251Ssam{ 2237189251Ssam if (mac_addr == NULL) { 2238189251Ssam wpa_printf(MSG_DEBUG, "WPS: No MAC Address received"); 2239189251Ssam return -1; 2240189251Ssam } 2241189251Ssam 2242189251Ssam wpa_printf(MSG_DEBUG, "WPS: Enrollee MAC Address " MACSTR, 2243189251Ssam MAC2STR(mac_addr)); 2244189251Ssam os_memcpy(wps->mac_addr_e, mac_addr, ETH_ALEN); 2245189251Ssam os_memcpy(wps->peer_dev.mac_addr, mac_addr, ETH_ALEN); 2246189251Ssam 2247189251Ssam return 0; 2248189251Ssam} 2249189251Ssam 2250189251Ssam 2251189251Ssamstatic int wps_process_pubkey(struct wps_data *wps, const u8 *pk, 2252189251Ssam size_t pk_len) 2253189251Ssam{ 2254189251Ssam if (pk == NULL || pk_len == 0) { 2255189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Public Key received"); 2256189251Ssam return -1; 2257189251Ssam } 2258189251Ssam 2259189251Ssam wpabuf_free(wps->dh_pubkey_e); 2260189251Ssam wps->dh_pubkey_e = wpabuf_alloc_copy(pk, pk_len); 2261189251Ssam if (wps->dh_pubkey_e == NULL) 2262189251Ssam return -1; 2263189251Ssam 2264189251Ssam return 0; 2265189251Ssam} 2266189251Ssam 2267189251Ssam 2268189251Ssamstatic int wps_process_auth_type_flags(struct wps_data *wps, const u8 *auth) 2269189251Ssam{ 2270189251Ssam u16 auth_types; 2271189251Ssam 2272189251Ssam if (auth == NULL) { 2273189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Authentication Type flags " 2274189251Ssam "received"); 2275189251Ssam return -1; 2276189251Ssam } 2277189251Ssam 2278189251Ssam auth_types = WPA_GET_BE16(auth); 2279189251Ssam 2280189251Ssam wpa_printf(MSG_DEBUG, "WPS: Enrollee Authentication Type flags 0x%x", 2281189251Ssam auth_types); 2282189251Ssam wps->auth_type = wps->wps->auth_types & auth_types; 2283189251Ssam if (wps->auth_type == 0) { 2284189251Ssam wpa_printf(MSG_DEBUG, "WPS: No match in supported " 2285189251Ssam "authentication types (own 0x%x Enrollee 0x%x)", 2286189251Ssam wps->wps->auth_types, auth_types); 2287209158Srpaulo#ifdef WPS_WORKAROUNDS 2288209158Srpaulo /* 2289209158Srpaulo * Some deployed implementations seem to advertise incorrect 2290209158Srpaulo * information in this attribute. For example, Linksys WRT350N 2291209158Srpaulo * seems to have a byteorder bug that breaks this negotiation. 2292209158Srpaulo * In order to interoperate with existing implementations, 2293209158Srpaulo * assume that the Enrollee supports everything we do. 2294209158Srpaulo */ 2295209158Srpaulo wpa_printf(MSG_DEBUG, "WPS: Workaround - assume Enrollee " 2296209158Srpaulo "does not advertise supported authentication types " 2297209158Srpaulo "correctly"); 2298209158Srpaulo wps->auth_type = wps->wps->auth_types; 2299209158Srpaulo#else /* WPS_WORKAROUNDS */ 2300189251Ssam return -1; 2301209158Srpaulo#endif /* WPS_WORKAROUNDS */ 2302189251Ssam } 2303189251Ssam 2304189251Ssam return 0; 2305189251Ssam} 2306189251Ssam 2307189251Ssam 2308189251Ssamstatic int wps_process_encr_type_flags(struct wps_data *wps, const u8 *encr) 2309189251Ssam{ 2310189251Ssam u16 encr_types; 2311189251Ssam 2312189251Ssam if (encr == NULL) { 2313189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Encryption Type flags " 2314189251Ssam "received"); 2315189251Ssam return -1; 2316189251Ssam } 2317189251Ssam 2318189251Ssam encr_types = WPA_GET_BE16(encr); 2319189251Ssam 2320189251Ssam wpa_printf(MSG_DEBUG, "WPS: Enrollee Encryption Type flags 0x%x", 2321189251Ssam encr_types); 2322189251Ssam wps->encr_type = wps->wps->encr_types & encr_types; 2323189251Ssam if (wps->encr_type == 0) { 2324189251Ssam wpa_printf(MSG_DEBUG, "WPS: No match in supported " 2325209158Srpaulo "encryption types (own 0x%x Enrollee 0x%x)", 2326209158Srpaulo wps->wps->encr_types, encr_types); 2327209158Srpaulo#ifdef WPS_WORKAROUNDS 2328209158Srpaulo /* 2329209158Srpaulo * Some deployed implementations seem to advertise incorrect 2330209158Srpaulo * information in this attribute. For example, Linksys WRT350N 2331209158Srpaulo * seems to have a byteorder bug that breaks this negotiation. 2332209158Srpaulo * In order to interoperate with existing implementations, 2333209158Srpaulo * assume that the Enrollee supports everything we do. 2334209158Srpaulo */ 2335209158Srpaulo wpa_printf(MSG_DEBUG, "WPS: Workaround - assume Enrollee " 2336209158Srpaulo "does not advertise supported encryption types " 2337209158Srpaulo "correctly"); 2338209158Srpaulo wps->encr_type = wps->wps->encr_types; 2339209158Srpaulo#else /* WPS_WORKAROUNDS */ 2340189251Ssam return -1; 2341209158Srpaulo#endif /* WPS_WORKAROUNDS */ 2342189251Ssam } 2343189251Ssam 2344189251Ssam return 0; 2345189251Ssam} 2346189251Ssam 2347189251Ssam 2348189251Ssamstatic int wps_process_conn_type_flags(struct wps_data *wps, const u8 *conn) 2349189251Ssam{ 2350189251Ssam if (conn == NULL) { 2351189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Connection Type flags " 2352189251Ssam "received"); 2353189251Ssam return -1; 2354189251Ssam } 2355189251Ssam 2356189251Ssam wpa_printf(MSG_DEBUG, "WPS: Enrollee Connection Type flags 0x%x", 2357189251Ssam *conn); 2358189251Ssam 2359189251Ssam return 0; 2360189251Ssam} 2361189251Ssam 2362189251Ssam 2363189251Ssamstatic int wps_process_config_methods(struct wps_data *wps, const u8 *methods) 2364189251Ssam{ 2365189251Ssam u16 m; 2366189251Ssam 2367189251Ssam if (methods == NULL) { 2368189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Config Methods received"); 2369189251Ssam return -1; 2370189251Ssam } 2371189251Ssam 2372189251Ssam m = WPA_GET_BE16(methods); 2373189251Ssam 2374214734Srpaulo wpa_printf(MSG_DEBUG, "WPS: Enrollee Config Methods 0x%x" 2375214734Srpaulo "%s%s%s%s%s%s%s%s%s", m, 2376214734Srpaulo m & WPS_CONFIG_USBA ? " [USBA]" : "", 2377214734Srpaulo m & WPS_CONFIG_ETHERNET ? " [Ethernet]" : "", 2378214734Srpaulo m & WPS_CONFIG_LABEL ? " [Label]" : "", 2379214734Srpaulo m & WPS_CONFIG_DISPLAY ? " [Display]" : "", 2380214734Srpaulo m & WPS_CONFIG_EXT_NFC_TOKEN ? " [Ext NFC Token]" : "", 2381214734Srpaulo m & WPS_CONFIG_INT_NFC_TOKEN ? " [Int NFC Token]" : "", 2382214734Srpaulo m & WPS_CONFIG_NFC_INTERFACE ? " [NFC]" : "", 2383214734Srpaulo m & WPS_CONFIG_PUSHBUTTON ? " [PBC]" : "", 2384214734Srpaulo m & WPS_CONFIG_KEYPAD ? " [Keypad]" : ""); 2385189251Ssam 2386214734Srpaulo if (!(m & WPS_CONFIG_DISPLAY) && !wps->use_psk_key) { 2387214734Srpaulo /* 2388214734Srpaulo * The Enrollee does not have a display so it is unlikely to be 2389214734Srpaulo * able to show the passphrase to a user and as such, could 2390214734Srpaulo * benefit from receiving PSK to reduce key derivation time. 2391214734Srpaulo */ 2392214734Srpaulo wpa_printf(MSG_DEBUG, "WPS: Prefer PSK format key due to " 2393214734Srpaulo "Enrollee not supporting display"); 2394214734Srpaulo wps->use_psk_key = 1; 2395214734Srpaulo } 2396214734Srpaulo 2397189251Ssam return 0; 2398189251Ssam} 2399189251Ssam 2400189251Ssam 2401189251Ssamstatic int wps_process_wps_state(struct wps_data *wps, const u8 *state) 2402189251Ssam{ 2403189251Ssam if (state == NULL) { 2404189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Wi-Fi Protected Setup State " 2405189251Ssam "received"); 2406189251Ssam return -1; 2407189251Ssam } 2408189251Ssam 2409189251Ssam wpa_printf(MSG_DEBUG, "WPS: Enrollee Wi-Fi Protected Setup State %d", 2410189251Ssam *state); 2411189251Ssam 2412189251Ssam return 0; 2413189251Ssam} 2414189251Ssam 2415189251Ssam 2416189251Ssamstatic int wps_process_assoc_state(struct wps_data *wps, const u8 *assoc) 2417189251Ssam{ 2418189251Ssam u16 a; 2419189251Ssam 2420189251Ssam if (assoc == NULL) { 2421189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Association State received"); 2422189251Ssam return -1; 2423189251Ssam } 2424189251Ssam 2425189251Ssam a = WPA_GET_BE16(assoc); 2426189251Ssam wpa_printf(MSG_DEBUG, "WPS: Enrollee Association State %d", a); 2427189251Ssam 2428189251Ssam return 0; 2429189251Ssam} 2430189251Ssam 2431189251Ssam 2432189251Ssamstatic int wps_process_config_error(struct wps_data *wps, const u8 *err) 2433189251Ssam{ 2434189251Ssam u16 e; 2435189251Ssam 2436189251Ssam if (err == NULL) { 2437189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Configuration Error received"); 2438189251Ssam return -1; 2439189251Ssam } 2440189251Ssam 2441189251Ssam e = WPA_GET_BE16(err); 2442189251Ssam wpa_printf(MSG_DEBUG, "WPS: Enrollee Configuration Error %d", e); 2443189251Ssam 2444189251Ssam return 0; 2445189251Ssam} 2446189251Ssam 2447189251Ssam 2448252726Srpaulostatic int wps_registrar_p2p_dev_addr_match(struct wps_data *wps) 2449252726Srpaulo{ 2450252726Srpaulo#ifdef CONFIG_P2P 2451252726Srpaulo struct wps_registrar *reg = wps->wps->registrar; 2452252726Srpaulo 2453252726Srpaulo if (is_zero_ether_addr(reg->p2p_dev_addr)) 2454252726Srpaulo return 1; /* no filtering in use */ 2455252726Srpaulo 2456252726Srpaulo if (os_memcmp(reg->p2p_dev_addr, wps->p2p_dev_addr, ETH_ALEN) != 0) { 2457252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: No match on P2P Device Address " 2458252726Srpaulo "filtering for PBC: expected " MACSTR " was " 2459252726Srpaulo MACSTR " - indicate PBC session overlap", 2460252726Srpaulo MAC2STR(reg->p2p_dev_addr), 2461252726Srpaulo MAC2STR(wps->p2p_dev_addr)); 2462252726Srpaulo return 0; 2463252726Srpaulo } 2464252726Srpaulo#endif /* CONFIG_P2P */ 2465252726Srpaulo return 1; 2466252726Srpaulo} 2467252726Srpaulo 2468252726Srpaulo 2469252726Srpaulostatic int wps_registrar_skip_overlap(struct wps_data *wps) 2470252726Srpaulo{ 2471252726Srpaulo#ifdef CONFIG_P2P 2472252726Srpaulo struct wps_registrar *reg = wps->wps->registrar; 2473252726Srpaulo 2474252726Srpaulo if (is_zero_ether_addr(reg->p2p_dev_addr)) 2475252726Srpaulo return 0; /* no specific Enrollee selected */ 2476252726Srpaulo 2477252726Srpaulo if (os_memcmp(reg->p2p_dev_addr, wps->p2p_dev_addr, ETH_ALEN) == 0) { 2478252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Skip PBC overlap due to selected " 2479252726Srpaulo "Enrollee match"); 2480252726Srpaulo return 1; 2481252726Srpaulo } 2482252726Srpaulo#endif /* CONFIG_P2P */ 2483252726Srpaulo return 0; 2484252726Srpaulo} 2485252726Srpaulo 2486252726Srpaulo 2487189251Ssamstatic enum wps_process_res wps_process_m1(struct wps_data *wps, 2488189251Ssam struct wps_parse_attr *attr) 2489189251Ssam{ 2490189251Ssam wpa_printf(MSG_DEBUG, "WPS: Received M1"); 2491189251Ssam 2492189251Ssam if (wps->state != RECV_M1) { 2493189251Ssam wpa_printf(MSG_DEBUG, "WPS: Unexpected state (%d) for " 2494189251Ssam "receiving M1", wps->state); 2495189251Ssam return WPS_FAILURE; 2496189251Ssam } 2497189251Ssam 2498189251Ssam if (wps_process_uuid_e(wps, attr->uuid_e) || 2499189251Ssam wps_process_mac_addr(wps, attr->mac_addr) || 2500189251Ssam wps_process_enrollee_nonce(wps, attr->enrollee_nonce) || 2501189251Ssam wps_process_pubkey(wps, attr->public_key, attr->public_key_len) || 2502189251Ssam wps_process_auth_type_flags(wps, attr->auth_type_flags) || 2503189251Ssam wps_process_encr_type_flags(wps, attr->encr_type_flags) || 2504189251Ssam wps_process_conn_type_flags(wps, attr->conn_type_flags) || 2505189251Ssam wps_process_config_methods(wps, attr->config_methods) || 2506189251Ssam wps_process_wps_state(wps, attr->wps_state) || 2507189251Ssam wps_process_device_attrs(&wps->peer_dev, attr) || 2508189251Ssam wps_process_rf_bands(&wps->peer_dev, attr->rf_bands) || 2509189251Ssam wps_process_assoc_state(wps, attr->assoc_state) || 2510189251Ssam wps_process_dev_password_id(wps, attr->dev_password_id) || 2511189251Ssam wps_process_config_error(wps, attr->config_error) || 2512189251Ssam wps_process_os_version(&wps->peer_dev, attr->os_version)) 2513189251Ssam return WPS_FAILURE; 2514189251Ssam 2515214734Srpaulo if (wps->dev_pw_id < 0x10 && 2516214734Srpaulo wps->dev_pw_id != DEV_PW_DEFAULT && 2517189251Ssam wps->dev_pw_id != DEV_PW_USER_SPECIFIED && 2518189251Ssam wps->dev_pw_id != DEV_PW_MACHINE_SPECIFIED && 2519189251Ssam wps->dev_pw_id != DEV_PW_REGISTRAR_SPECIFIED && 2520189251Ssam (wps->dev_pw_id != DEV_PW_PUSHBUTTON || 2521189251Ssam !wps->wps->registrar->pbc)) { 2522189251Ssam wpa_printf(MSG_DEBUG, "WPS: Unsupported Device Password ID %d", 2523189251Ssam wps->dev_pw_id); 2524189251Ssam wps->state = SEND_M2D; 2525189251Ssam return WPS_CONTINUE; 2526189251Ssam } 2527189251Ssam 2528252726Srpaulo#ifdef CONFIG_WPS_NFC 2529252726Srpaulo if (wps->dev_pw_id >= 0x10) { 2530252726Srpaulo struct wps_nfc_pw_token *token; 2531252726Srpaulo const u8 *addr[1]; 2532252726Srpaulo u8 hash[WPS_HASH_LEN]; 2533252726Srpaulo 2534252726Srpaulo token = wps_get_nfc_pw_token( 2535252726Srpaulo &wps->wps->registrar->nfc_pw_tokens, wps->dev_pw_id); 2536252726Srpaulo if (token) { 2537252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Found matching NFC " 2538252726Srpaulo "Password Token"); 2539252726Srpaulo dl_list_del(&token->list); 2540252726Srpaulo wps->nfc_pw_token = token; 2541252726Srpaulo 2542252726Srpaulo addr[0] = attr->public_key; 2543252726Srpaulo sha256_vector(1, addr, &attr->public_key_len, hash); 2544252726Srpaulo if (os_memcmp(hash, wps->nfc_pw_token->pubkey_hash, 2545252726Srpaulo WPS_OOB_PUBKEY_HASH_LEN) != 0) { 2546252726Srpaulo wpa_printf(MSG_ERROR, "WPS: Public Key hash " 2547252726Srpaulo "mismatch"); 2548252726Srpaulo return WPS_FAILURE; 2549252726Srpaulo } 2550252726Srpaulo } 2551214734Srpaulo } 2552252726Srpaulo#endif /* CONFIG_WPS_NFC */ 2553214734Srpaulo 2554189251Ssam if (wps->dev_pw_id == DEV_PW_PUSHBUTTON) { 2555252726Srpaulo if ((wps->wps->registrar->force_pbc_overlap || 2556252726Srpaulo wps_registrar_pbc_overlap(wps->wps->registrar, 2557252726Srpaulo wps->mac_addr_e, wps->uuid_e) || 2558252726Srpaulo !wps_registrar_p2p_dev_addr_match(wps)) && 2559252726Srpaulo !wps_registrar_skip_overlap(wps)) { 2560189251Ssam wpa_printf(MSG_DEBUG, "WPS: PBC overlap - deny PBC " 2561189251Ssam "negotiation"); 2562189251Ssam wps->state = SEND_M2D; 2563209158Srpaulo wps->config_error = WPS_CFG_MULTIPLE_PBC_DETECTED; 2564209158Srpaulo wps_pbc_overlap_event(wps->wps); 2565252726Srpaulo wps_fail_event(wps->wps, WPS_M1, 2566252726Srpaulo WPS_CFG_MULTIPLE_PBC_DETECTED, 2567252726Srpaulo WPS_EI_NO_ERROR); 2568209158Srpaulo wps->wps->registrar->force_pbc_overlap = 1; 2569189251Ssam return WPS_CONTINUE; 2570189251Ssam } 2571189251Ssam wps_registrar_add_pbc_session(wps->wps->registrar, 2572189251Ssam wps->mac_addr_e, wps->uuid_e); 2573189251Ssam wps->pbc = 1; 2574189251Ssam } 2575189251Ssam 2576214734Srpaulo#ifdef WPS_WORKAROUNDS 2577214734Srpaulo /* 2578214734Srpaulo * It looks like Mac OS X 10.6.3 and 10.6.4 do not like Network Key in 2579214734Srpaulo * passphrase format. To avoid interop issues, force PSK format to be 2580214734Srpaulo * used. 2581214734Srpaulo */ 2582214734Srpaulo if (!wps->use_psk_key && 2583214734Srpaulo wps->peer_dev.manufacturer && 2584214734Srpaulo os_strncmp(wps->peer_dev.manufacturer, "Apple ", 6) == 0 && 2585214734Srpaulo wps->peer_dev.model_name && 2586214734Srpaulo os_strcmp(wps->peer_dev.model_name, "AirPort") == 0) { 2587214734Srpaulo wpa_printf(MSG_DEBUG, "WPS: Workaround - Force Network Key in " 2588214734Srpaulo "PSK format"); 2589214734Srpaulo wps->use_psk_key = 1; 2590214734Srpaulo } 2591214734Srpaulo#endif /* WPS_WORKAROUNDS */ 2592214734Srpaulo 2593189251Ssam wps->state = SEND_M2; 2594189251Ssam return WPS_CONTINUE; 2595189251Ssam} 2596189251Ssam 2597189251Ssam 2598189251Ssamstatic enum wps_process_res wps_process_m3(struct wps_data *wps, 2599189251Ssam const struct wpabuf *msg, 2600189251Ssam struct wps_parse_attr *attr) 2601189251Ssam{ 2602189251Ssam wpa_printf(MSG_DEBUG, "WPS: Received M3"); 2603189251Ssam 2604189251Ssam if (wps->state != RECV_M3) { 2605189251Ssam wpa_printf(MSG_DEBUG, "WPS: Unexpected state (%d) for " 2606189251Ssam "receiving M3", wps->state); 2607189251Ssam wps->state = SEND_WSC_NACK; 2608189251Ssam return WPS_CONTINUE; 2609189251Ssam } 2610189251Ssam 2611252726Srpaulo if (wps->pbc && wps->wps->registrar->force_pbc_overlap && 2612252726Srpaulo !wps_registrar_skip_overlap(wps)) { 2613209158Srpaulo wpa_printf(MSG_DEBUG, "WPS: Reject negotiation due to PBC " 2614209158Srpaulo "session overlap"); 2615209158Srpaulo wps->state = SEND_WSC_NACK; 2616209158Srpaulo wps->config_error = WPS_CFG_MULTIPLE_PBC_DETECTED; 2617209158Srpaulo return WPS_CONTINUE; 2618209158Srpaulo } 2619209158Srpaulo 2620189251Ssam if (wps_process_registrar_nonce(wps, attr->registrar_nonce) || 2621189251Ssam wps_process_authenticator(wps, attr->authenticator, msg) || 2622189251Ssam wps_process_e_hash1(wps, attr->e_hash1) || 2623189251Ssam wps_process_e_hash2(wps, attr->e_hash2)) { 2624189251Ssam wps->state = SEND_WSC_NACK; 2625189251Ssam return WPS_CONTINUE; 2626189251Ssam } 2627189251Ssam 2628189251Ssam wps->state = SEND_M4; 2629189251Ssam return WPS_CONTINUE; 2630189251Ssam} 2631189251Ssam 2632189251Ssam 2633189251Ssamstatic enum wps_process_res wps_process_m5(struct wps_data *wps, 2634189251Ssam const struct wpabuf *msg, 2635189251Ssam struct wps_parse_attr *attr) 2636189251Ssam{ 2637189251Ssam struct wpabuf *decrypted; 2638189251Ssam struct wps_parse_attr eattr; 2639189251Ssam 2640189251Ssam wpa_printf(MSG_DEBUG, "WPS: Received M5"); 2641189251Ssam 2642189251Ssam if (wps->state != RECV_M5) { 2643189251Ssam wpa_printf(MSG_DEBUG, "WPS: Unexpected state (%d) for " 2644189251Ssam "receiving M5", wps->state); 2645189251Ssam wps->state = SEND_WSC_NACK; 2646189251Ssam return WPS_CONTINUE; 2647189251Ssam } 2648189251Ssam 2649252726Srpaulo if (wps->pbc && wps->wps->registrar->force_pbc_overlap && 2650252726Srpaulo !wps_registrar_skip_overlap(wps)) { 2651209158Srpaulo wpa_printf(MSG_DEBUG, "WPS: Reject negotiation due to PBC " 2652209158Srpaulo "session overlap"); 2653209158Srpaulo wps->state = SEND_WSC_NACK; 2654209158Srpaulo wps->config_error = WPS_CFG_MULTIPLE_PBC_DETECTED; 2655209158Srpaulo return WPS_CONTINUE; 2656209158Srpaulo } 2657209158Srpaulo 2658189251Ssam if (wps_process_registrar_nonce(wps, attr->registrar_nonce) || 2659189251Ssam wps_process_authenticator(wps, attr->authenticator, msg)) { 2660189251Ssam wps->state = SEND_WSC_NACK; 2661189251Ssam return WPS_CONTINUE; 2662189251Ssam } 2663189251Ssam 2664189251Ssam decrypted = wps_decrypt_encr_settings(wps, attr->encr_settings, 2665189251Ssam attr->encr_settings_len); 2666189251Ssam if (decrypted == NULL) { 2667189251Ssam wpa_printf(MSG_DEBUG, "WPS: Failed to decrypted Encrypted " 2668189251Ssam "Settings attribute"); 2669189251Ssam wps->state = SEND_WSC_NACK; 2670189251Ssam return WPS_CONTINUE; 2671189251Ssam } 2672189251Ssam 2673252726Srpaulo if (wps_validate_m5_encr(decrypted, attr->version2 != NULL) < 0) { 2674252726Srpaulo wpabuf_free(decrypted); 2675252726Srpaulo wps->state = SEND_WSC_NACK; 2676252726Srpaulo return WPS_CONTINUE; 2677252726Srpaulo } 2678252726Srpaulo 2679189251Ssam wpa_printf(MSG_DEBUG, "WPS: Processing decrypted Encrypted Settings " 2680189251Ssam "attribute"); 2681189251Ssam if (wps_parse_msg(decrypted, &eattr) < 0 || 2682189251Ssam wps_process_key_wrap_auth(wps, decrypted, eattr.key_wrap_auth) || 2683189251Ssam wps_process_e_snonce1(wps, eattr.e_snonce1)) { 2684189251Ssam wpabuf_free(decrypted); 2685189251Ssam wps->state = SEND_WSC_NACK; 2686189251Ssam return WPS_CONTINUE; 2687189251Ssam } 2688189251Ssam wpabuf_free(decrypted); 2689189251Ssam 2690189251Ssam wps->state = SEND_M6; 2691189251Ssam return WPS_CONTINUE; 2692189251Ssam} 2693189251Ssam 2694189251Ssam 2695209158Srpaulostatic void wps_sta_cred_cb(struct wps_data *wps) 2696209158Srpaulo{ 2697209158Srpaulo /* 2698209158Srpaulo * Update credential to only include a single authentication and 2699209158Srpaulo * encryption type in case the AP configuration includes more than one 2700209158Srpaulo * option. 2701209158Srpaulo */ 2702209158Srpaulo if (wps->cred.auth_type & WPS_AUTH_WPA2PSK) 2703209158Srpaulo wps->cred.auth_type = WPS_AUTH_WPA2PSK; 2704209158Srpaulo else if (wps->cred.auth_type & WPS_AUTH_WPAPSK) 2705209158Srpaulo wps->cred.auth_type = WPS_AUTH_WPAPSK; 2706209158Srpaulo if (wps->cred.encr_type & WPS_ENCR_AES) 2707209158Srpaulo wps->cred.encr_type = WPS_ENCR_AES; 2708209158Srpaulo else if (wps->cred.encr_type & WPS_ENCR_TKIP) 2709209158Srpaulo wps->cred.encr_type = WPS_ENCR_TKIP; 2710209158Srpaulo wpa_printf(MSG_DEBUG, "WPS: Update local configuration based on the " 2711209158Srpaulo "AP configuration"); 2712209158Srpaulo if (wps->wps->cred_cb) 2713209158Srpaulo wps->wps->cred_cb(wps->wps->cb_ctx, &wps->cred); 2714209158Srpaulo} 2715209158Srpaulo 2716209158Srpaulo 2717214734Srpaulostatic void wps_cred_update(struct wps_credential *dst, 2718214734Srpaulo struct wps_credential *src) 2719214734Srpaulo{ 2720214734Srpaulo os_memcpy(dst->ssid, src->ssid, sizeof(dst->ssid)); 2721214734Srpaulo dst->ssid_len = src->ssid_len; 2722214734Srpaulo dst->auth_type = src->auth_type; 2723214734Srpaulo dst->encr_type = src->encr_type; 2724214734Srpaulo dst->key_idx = src->key_idx; 2725214734Srpaulo os_memcpy(dst->key, src->key, sizeof(dst->key)); 2726214734Srpaulo dst->key_len = src->key_len; 2727214734Srpaulo} 2728214734Srpaulo 2729214734Srpaulo 2730189251Ssamstatic int wps_process_ap_settings_r(struct wps_data *wps, 2731189251Ssam struct wps_parse_attr *attr) 2732189251Ssam{ 2733252726Srpaulo struct wpabuf *msg; 2734252726Srpaulo 2735214734Srpaulo if (wps->wps->ap || wps->er) 2736189251Ssam return 0; 2737189251Ssam 2738189251Ssam /* AP Settings Attributes in M7 when Enrollee is an AP */ 2739189251Ssam if (wps_process_ap_settings(attr, &wps->cred) < 0) 2740189251Ssam return -1; 2741189251Ssam 2742189251Ssam wpa_printf(MSG_INFO, "WPS: Received old AP configuration from AP"); 2743189251Ssam 2744214734Srpaulo if (wps->new_ap_settings) { 2745214734Srpaulo wpa_printf(MSG_INFO, "WPS: Update AP configuration based on " 2746214734Srpaulo "new settings"); 2747214734Srpaulo wps_cred_update(&wps->cred, wps->new_ap_settings); 2748214734Srpaulo return 0; 2749214734Srpaulo } else { 2750214734Srpaulo /* 2751214734Srpaulo * Use the AP PIN only to receive the current AP settings, not 2752214734Srpaulo * to reconfigure the AP. 2753214734Srpaulo */ 2754252726Srpaulo 2755252726Srpaulo /* 2756252726Srpaulo * Clear selected registrar here since we do not get to 2757252726Srpaulo * WSC_Done in this protocol run. 2758252726Srpaulo */ 2759252726Srpaulo wps_registrar_pin_completed(wps->wps->registrar); 2760252726Srpaulo 2761252726Srpaulo msg = wps_build_ap_cred(wps); 2762252726Srpaulo if (msg == NULL) 2763252726Srpaulo return -1; 2764252726Srpaulo wps->cred.cred_attr = wpabuf_head(msg); 2765252726Srpaulo wps->cred.cred_attr_len = wpabuf_len(msg); 2766252726Srpaulo 2767214734Srpaulo if (wps->ap_settings_cb) { 2768214734Srpaulo wps->ap_settings_cb(wps->ap_settings_cb_ctx, 2769214734Srpaulo &wps->cred); 2770252726Srpaulo wpabuf_free(msg); 2771214734Srpaulo return 1; 2772214734Srpaulo } 2773214734Srpaulo wps_sta_cred_cb(wps); 2774252726Srpaulo 2775252726Srpaulo wps->cred.cred_attr = NULL; 2776252726Srpaulo wps->cred.cred_attr_len = 0; 2777252726Srpaulo wpabuf_free(msg); 2778252726Srpaulo 2779214734Srpaulo return 1; 2780214734Srpaulo } 2781189251Ssam} 2782189251Ssam 2783189251Ssam 2784189251Ssamstatic enum wps_process_res wps_process_m7(struct wps_data *wps, 2785189251Ssam const struct wpabuf *msg, 2786189251Ssam struct wps_parse_attr *attr) 2787189251Ssam{ 2788189251Ssam struct wpabuf *decrypted; 2789189251Ssam struct wps_parse_attr eattr; 2790189251Ssam 2791189251Ssam wpa_printf(MSG_DEBUG, "WPS: Received M7"); 2792189251Ssam 2793189251Ssam if (wps->state != RECV_M7) { 2794189251Ssam wpa_printf(MSG_DEBUG, "WPS: Unexpected state (%d) for " 2795189251Ssam "receiving M7", wps->state); 2796189251Ssam wps->state = SEND_WSC_NACK; 2797189251Ssam return WPS_CONTINUE; 2798189251Ssam } 2799189251Ssam 2800252726Srpaulo if (wps->pbc && wps->wps->registrar->force_pbc_overlap && 2801252726Srpaulo !wps_registrar_skip_overlap(wps)) { 2802209158Srpaulo wpa_printf(MSG_DEBUG, "WPS: Reject negotiation due to PBC " 2803209158Srpaulo "session overlap"); 2804209158Srpaulo wps->state = SEND_WSC_NACK; 2805209158Srpaulo wps->config_error = WPS_CFG_MULTIPLE_PBC_DETECTED; 2806209158Srpaulo return WPS_CONTINUE; 2807209158Srpaulo } 2808209158Srpaulo 2809189251Ssam if (wps_process_registrar_nonce(wps, attr->registrar_nonce) || 2810189251Ssam wps_process_authenticator(wps, attr->authenticator, msg)) { 2811189251Ssam wps->state = SEND_WSC_NACK; 2812189251Ssam return WPS_CONTINUE; 2813189251Ssam } 2814189251Ssam 2815189251Ssam decrypted = wps_decrypt_encr_settings(wps, attr->encr_settings, 2816189251Ssam attr->encr_settings_len); 2817189251Ssam if (decrypted == NULL) { 2818214734Srpaulo wpa_printf(MSG_DEBUG, "WPS: Failed to decrypt Encrypted " 2819189251Ssam "Settings attribute"); 2820189251Ssam wps->state = SEND_WSC_NACK; 2821189251Ssam return WPS_CONTINUE; 2822189251Ssam } 2823189251Ssam 2824252726Srpaulo if (wps_validate_m7_encr(decrypted, wps->wps->ap || wps->er, 2825252726Srpaulo attr->version2 != NULL) < 0) { 2826252726Srpaulo wpabuf_free(decrypted); 2827252726Srpaulo wps->state = SEND_WSC_NACK; 2828252726Srpaulo return WPS_CONTINUE; 2829252726Srpaulo } 2830252726Srpaulo 2831189251Ssam wpa_printf(MSG_DEBUG, "WPS: Processing decrypted Encrypted Settings " 2832189251Ssam "attribute"); 2833189251Ssam if (wps_parse_msg(decrypted, &eattr) < 0 || 2834189251Ssam wps_process_key_wrap_auth(wps, decrypted, eattr.key_wrap_auth) || 2835189251Ssam wps_process_e_snonce2(wps, eattr.e_snonce2) || 2836189251Ssam wps_process_ap_settings_r(wps, &eattr)) { 2837189251Ssam wpabuf_free(decrypted); 2838189251Ssam wps->state = SEND_WSC_NACK; 2839189251Ssam return WPS_CONTINUE; 2840189251Ssam } 2841189251Ssam 2842189251Ssam wpabuf_free(decrypted); 2843189251Ssam 2844189251Ssam wps->state = SEND_M8; 2845189251Ssam return WPS_CONTINUE; 2846189251Ssam} 2847189251Ssam 2848189251Ssam 2849189251Ssamstatic enum wps_process_res wps_process_wsc_msg(struct wps_data *wps, 2850189251Ssam const struct wpabuf *msg) 2851189251Ssam{ 2852189251Ssam struct wps_parse_attr attr; 2853189251Ssam enum wps_process_res ret = WPS_CONTINUE; 2854189251Ssam 2855189251Ssam wpa_printf(MSG_DEBUG, "WPS: Received WSC_MSG"); 2856189251Ssam 2857189251Ssam if (wps_parse_msg(msg, &attr) < 0) 2858189251Ssam return WPS_FAILURE; 2859189251Ssam 2860189251Ssam if (attr.msg_type == NULL) { 2861189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Message Type attribute"); 2862252726Srpaulo wps->state = SEND_WSC_NACK; 2863252726Srpaulo return WPS_CONTINUE; 2864189251Ssam } 2865189251Ssam 2866189251Ssam if (*attr.msg_type != WPS_M1 && 2867189251Ssam (attr.registrar_nonce == NULL || 2868189251Ssam os_memcmp(wps->nonce_r, attr.registrar_nonce, 2869252726Srpaulo WPS_NONCE_LEN) != 0)) { 2870189251Ssam wpa_printf(MSG_DEBUG, "WPS: Mismatch in registrar nonce"); 2871189251Ssam return WPS_FAILURE; 2872189251Ssam } 2873189251Ssam 2874189251Ssam switch (*attr.msg_type) { 2875189251Ssam case WPS_M1: 2876252726Srpaulo if (wps_validate_m1(msg) < 0) 2877252726Srpaulo return WPS_FAILURE; 2878189251Ssam#ifdef CONFIG_WPS_UPNP 2879189251Ssam if (wps->wps->wps_upnp && attr.mac_addr) { 2880189251Ssam /* Remove old pending messages when starting new run */ 2881189251Ssam wps_free_pending_msgs(wps->wps->upnp_msgs); 2882189251Ssam wps->wps->upnp_msgs = NULL; 2883189251Ssam 2884189251Ssam upnp_wps_device_send_wlan_event( 2885189251Ssam wps->wps->wps_upnp, attr.mac_addr, 2886189251Ssam UPNP_WPS_WLANEVENT_TYPE_EAP, msg); 2887189251Ssam } 2888189251Ssam#endif /* CONFIG_WPS_UPNP */ 2889189251Ssam ret = wps_process_m1(wps, &attr); 2890189251Ssam break; 2891189251Ssam case WPS_M3: 2892252726Srpaulo if (wps_validate_m3(msg) < 0) 2893252726Srpaulo return WPS_FAILURE; 2894189251Ssam ret = wps_process_m3(wps, msg, &attr); 2895189251Ssam if (ret == WPS_FAILURE || wps->state == SEND_WSC_NACK) 2896252726Srpaulo wps_fail_event(wps->wps, WPS_M3, wps->config_error, 2897252726Srpaulo wps->error_indication); 2898189251Ssam break; 2899189251Ssam case WPS_M5: 2900252726Srpaulo if (wps_validate_m5(msg) < 0) 2901252726Srpaulo return WPS_FAILURE; 2902189251Ssam ret = wps_process_m5(wps, msg, &attr); 2903189251Ssam if (ret == WPS_FAILURE || wps->state == SEND_WSC_NACK) 2904252726Srpaulo wps_fail_event(wps->wps, WPS_M5, wps->config_error, 2905252726Srpaulo wps->error_indication); 2906189251Ssam break; 2907189251Ssam case WPS_M7: 2908252726Srpaulo if (wps_validate_m7(msg) < 0) 2909252726Srpaulo return WPS_FAILURE; 2910189251Ssam ret = wps_process_m7(wps, msg, &attr); 2911189251Ssam if (ret == WPS_FAILURE || wps->state == SEND_WSC_NACK) 2912252726Srpaulo wps_fail_event(wps->wps, WPS_M7, wps->config_error, 2913252726Srpaulo wps->error_indication); 2914189251Ssam break; 2915189251Ssam default: 2916189251Ssam wpa_printf(MSG_DEBUG, "WPS: Unsupported Message Type %d", 2917189251Ssam *attr.msg_type); 2918189251Ssam return WPS_FAILURE; 2919189251Ssam } 2920189251Ssam 2921189251Ssam if (ret == WPS_CONTINUE) { 2922189251Ssam /* Save a copy of the last message for Authenticator derivation 2923189251Ssam */ 2924189251Ssam wpabuf_free(wps->last_msg); 2925189251Ssam wps->last_msg = wpabuf_dup(msg); 2926189251Ssam } 2927189251Ssam 2928189251Ssam return ret; 2929189251Ssam} 2930189251Ssam 2931189251Ssam 2932189251Ssamstatic enum wps_process_res wps_process_wsc_ack(struct wps_data *wps, 2933189251Ssam const struct wpabuf *msg) 2934189251Ssam{ 2935189251Ssam struct wps_parse_attr attr; 2936189251Ssam 2937189251Ssam wpa_printf(MSG_DEBUG, "WPS: Received WSC_ACK"); 2938189251Ssam 2939189251Ssam if (wps_parse_msg(msg, &attr) < 0) 2940189251Ssam return WPS_FAILURE; 2941189251Ssam 2942189251Ssam if (attr.msg_type == NULL) { 2943189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Message Type attribute"); 2944189251Ssam return WPS_FAILURE; 2945189251Ssam } 2946189251Ssam 2947189251Ssam if (*attr.msg_type != WPS_WSC_ACK) { 2948189251Ssam wpa_printf(MSG_DEBUG, "WPS: Invalid Message Type %d", 2949189251Ssam *attr.msg_type); 2950189251Ssam return WPS_FAILURE; 2951189251Ssam } 2952189251Ssam 2953189251Ssam#ifdef CONFIG_WPS_UPNP 2954189251Ssam if (wps->wps->wps_upnp && wps->ext_reg && wps->state == RECV_M2D_ACK && 2955189251Ssam upnp_wps_subscribers(wps->wps->wps_upnp)) { 2956189251Ssam if (wps->wps->upnp_msgs) 2957189251Ssam return WPS_CONTINUE; 2958189251Ssam wpa_printf(MSG_DEBUG, "WPS: Wait for response from an " 2959189251Ssam "external Registrar"); 2960189251Ssam return WPS_PENDING; 2961189251Ssam } 2962189251Ssam#endif /* CONFIG_WPS_UPNP */ 2963189251Ssam 2964189251Ssam if (attr.registrar_nonce == NULL || 2965252726Srpaulo os_memcmp(wps->nonce_r, attr.registrar_nonce, WPS_NONCE_LEN) != 0) 2966189251Ssam { 2967189251Ssam wpa_printf(MSG_DEBUG, "WPS: Mismatch in registrar nonce"); 2968189251Ssam return WPS_FAILURE; 2969189251Ssam } 2970189251Ssam 2971189251Ssam if (attr.enrollee_nonce == NULL || 2972252726Srpaulo os_memcmp(wps->nonce_e, attr.enrollee_nonce, WPS_NONCE_LEN) != 0) { 2973189251Ssam wpa_printf(MSG_DEBUG, "WPS: Mismatch in enrollee nonce"); 2974189251Ssam return WPS_FAILURE; 2975189251Ssam } 2976189251Ssam 2977189251Ssam if (wps->state == RECV_M2D_ACK) { 2978189251Ssam#ifdef CONFIG_WPS_UPNP 2979189251Ssam if (wps->wps->wps_upnp && 2980189251Ssam upnp_wps_subscribers(wps->wps->wps_upnp)) { 2981189251Ssam if (wps->wps->upnp_msgs) 2982189251Ssam return WPS_CONTINUE; 2983189251Ssam if (wps->ext_reg == 0) 2984189251Ssam wps->ext_reg = 1; 2985189251Ssam wpa_printf(MSG_DEBUG, "WPS: Wait for response from an " 2986189251Ssam "external Registrar"); 2987189251Ssam return WPS_PENDING; 2988189251Ssam } 2989189251Ssam#endif /* CONFIG_WPS_UPNP */ 2990189251Ssam 2991189251Ssam wpa_printf(MSG_DEBUG, "WPS: No more registrars available - " 2992189251Ssam "terminate negotiation"); 2993189251Ssam } 2994189251Ssam 2995189251Ssam return WPS_FAILURE; 2996189251Ssam} 2997189251Ssam 2998189251Ssam 2999189251Ssamstatic enum wps_process_res wps_process_wsc_nack(struct wps_data *wps, 3000189251Ssam const struct wpabuf *msg) 3001189251Ssam{ 3002189251Ssam struct wps_parse_attr attr; 3003189251Ssam int old_state; 3004252726Srpaulo u16 config_error; 3005189251Ssam 3006189251Ssam wpa_printf(MSG_DEBUG, "WPS: Received WSC_NACK"); 3007189251Ssam 3008189251Ssam old_state = wps->state; 3009189251Ssam wps->state = SEND_WSC_NACK; 3010189251Ssam 3011189251Ssam if (wps_parse_msg(msg, &attr) < 0) 3012189251Ssam return WPS_FAILURE; 3013189251Ssam 3014189251Ssam if (attr.msg_type == NULL) { 3015189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Message Type attribute"); 3016189251Ssam return WPS_FAILURE; 3017189251Ssam } 3018189251Ssam 3019189251Ssam if (*attr.msg_type != WPS_WSC_NACK) { 3020189251Ssam wpa_printf(MSG_DEBUG, "WPS: Invalid Message Type %d", 3021189251Ssam *attr.msg_type); 3022189251Ssam return WPS_FAILURE; 3023189251Ssam } 3024189251Ssam 3025189251Ssam#ifdef CONFIG_WPS_UPNP 3026189251Ssam if (wps->wps->wps_upnp && wps->ext_reg) { 3027189251Ssam wpa_printf(MSG_DEBUG, "WPS: Negotiation using external " 3028189251Ssam "Registrar terminated by the Enrollee"); 3029189251Ssam return WPS_FAILURE; 3030189251Ssam } 3031189251Ssam#endif /* CONFIG_WPS_UPNP */ 3032189251Ssam 3033189251Ssam if (attr.registrar_nonce == NULL || 3034252726Srpaulo os_memcmp(wps->nonce_r, attr.registrar_nonce, WPS_NONCE_LEN) != 0) 3035189251Ssam { 3036189251Ssam wpa_printf(MSG_DEBUG, "WPS: Mismatch in registrar nonce"); 3037189251Ssam return WPS_FAILURE; 3038189251Ssam } 3039189251Ssam 3040189251Ssam if (attr.enrollee_nonce == NULL || 3041252726Srpaulo os_memcmp(wps->nonce_e, attr.enrollee_nonce, WPS_NONCE_LEN) != 0) { 3042189251Ssam wpa_printf(MSG_DEBUG, "WPS: Mismatch in enrollee nonce"); 3043189251Ssam return WPS_FAILURE; 3044189251Ssam } 3045189251Ssam 3046189251Ssam if (attr.config_error == NULL) { 3047189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Configuration Error attribute " 3048189251Ssam "in WSC_NACK"); 3049189251Ssam return WPS_FAILURE; 3050189251Ssam } 3051189251Ssam 3052252726Srpaulo config_error = WPA_GET_BE16(attr.config_error); 3053189251Ssam wpa_printf(MSG_DEBUG, "WPS: Enrollee terminated negotiation with " 3054252726Srpaulo "Configuration Error %d", config_error); 3055189251Ssam 3056189251Ssam switch (old_state) { 3057189251Ssam case RECV_M3: 3058252726Srpaulo wps_fail_event(wps->wps, WPS_M2, config_error, 3059252726Srpaulo wps->error_indication); 3060189251Ssam break; 3061189251Ssam case RECV_M5: 3062252726Srpaulo wps_fail_event(wps->wps, WPS_M4, config_error, 3063252726Srpaulo wps->error_indication); 3064189251Ssam break; 3065189251Ssam case RECV_M7: 3066252726Srpaulo wps_fail_event(wps->wps, WPS_M6, config_error, 3067252726Srpaulo wps->error_indication); 3068189251Ssam break; 3069189251Ssam case RECV_DONE: 3070252726Srpaulo wps_fail_event(wps->wps, WPS_M8, config_error, 3071252726Srpaulo wps->error_indication); 3072189251Ssam break; 3073189251Ssam default: 3074189251Ssam break; 3075189251Ssam } 3076189251Ssam 3077189251Ssam return WPS_FAILURE; 3078189251Ssam} 3079189251Ssam 3080189251Ssam 3081189251Ssamstatic enum wps_process_res wps_process_wsc_done(struct wps_data *wps, 3082189251Ssam const struct wpabuf *msg) 3083189251Ssam{ 3084189251Ssam struct wps_parse_attr attr; 3085189251Ssam 3086189251Ssam wpa_printf(MSG_DEBUG, "WPS: Received WSC_Done"); 3087189251Ssam 3088189251Ssam if (wps->state != RECV_DONE && 3089189251Ssam (!wps->wps->wps_upnp || !wps->ext_reg)) { 3090189251Ssam wpa_printf(MSG_DEBUG, "WPS: Unexpected state (%d) for " 3091189251Ssam "receiving WSC_Done", wps->state); 3092189251Ssam return WPS_FAILURE; 3093189251Ssam } 3094189251Ssam 3095189251Ssam if (wps_parse_msg(msg, &attr) < 0) 3096189251Ssam return WPS_FAILURE; 3097189251Ssam 3098189251Ssam if (attr.msg_type == NULL) { 3099189251Ssam wpa_printf(MSG_DEBUG, "WPS: No Message Type attribute"); 3100189251Ssam return WPS_FAILURE; 3101189251Ssam } 3102189251Ssam 3103189251Ssam if (*attr.msg_type != WPS_WSC_DONE) { 3104189251Ssam wpa_printf(MSG_DEBUG, "WPS: Invalid Message Type %d", 3105189251Ssam *attr.msg_type); 3106189251Ssam return WPS_FAILURE; 3107189251Ssam } 3108189251Ssam 3109189251Ssam#ifdef CONFIG_WPS_UPNP 3110189251Ssam if (wps->wps->wps_upnp && wps->ext_reg) { 3111189251Ssam wpa_printf(MSG_DEBUG, "WPS: Negotiation using external " 3112189251Ssam "Registrar completed successfully"); 3113214734Srpaulo wps_device_store(wps->wps->registrar, &wps->peer_dev, 3114214734Srpaulo wps->uuid_e); 3115189251Ssam return WPS_DONE; 3116189251Ssam } 3117189251Ssam#endif /* CONFIG_WPS_UPNP */ 3118189251Ssam 3119189251Ssam if (attr.registrar_nonce == NULL || 3120252726Srpaulo os_memcmp(wps->nonce_r, attr.registrar_nonce, WPS_NONCE_LEN) != 0) 3121189251Ssam { 3122189251Ssam wpa_printf(MSG_DEBUG, "WPS: Mismatch in registrar nonce"); 3123189251Ssam return WPS_FAILURE; 3124189251Ssam } 3125189251Ssam 3126189251Ssam if (attr.enrollee_nonce == NULL || 3127252726Srpaulo os_memcmp(wps->nonce_e, attr.enrollee_nonce, WPS_NONCE_LEN) != 0) { 3128189251Ssam wpa_printf(MSG_DEBUG, "WPS: Mismatch in enrollee nonce"); 3129189251Ssam return WPS_FAILURE; 3130189251Ssam } 3131189251Ssam 3132189251Ssam wpa_printf(MSG_DEBUG, "WPS: Negotiation completed successfully"); 3133214734Srpaulo wps_device_store(wps->wps->registrar, &wps->peer_dev, 3134214734Srpaulo wps->uuid_e); 3135189251Ssam 3136189251Ssam if (wps->wps->wps_state == WPS_STATE_NOT_CONFIGURED && wps->new_psk && 3137189251Ssam wps->wps->ap && !wps->wps->registrar->disable_auto_conf) { 3138189251Ssam struct wps_credential cred; 3139189251Ssam 3140189251Ssam wpa_printf(MSG_DEBUG, "WPS: Moving to Configured state based " 3141189251Ssam "on first Enrollee connection"); 3142189251Ssam 3143189251Ssam os_memset(&cred, 0, sizeof(cred)); 3144189251Ssam os_memcpy(cred.ssid, wps->wps->ssid, wps->wps->ssid_len); 3145189251Ssam cred.ssid_len = wps->wps->ssid_len; 3146189251Ssam cred.auth_type = WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK; 3147189251Ssam cred.encr_type = WPS_ENCR_TKIP | WPS_ENCR_AES; 3148189251Ssam os_memcpy(cred.key, wps->new_psk, wps->new_psk_len); 3149189251Ssam cred.key_len = wps->new_psk_len; 3150189251Ssam 3151189251Ssam wps->wps->wps_state = WPS_STATE_CONFIGURED; 3152189251Ssam wpa_hexdump_ascii_key(MSG_DEBUG, 3153189251Ssam "WPS: Generated random passphrase", 3154189251Ssam wps->new_psk, wps->new_psk_len); 3155189251Ssam if (wps->wps->cred_cb) 3156189251Ssam wps->wps->cred_cb(wps->wps->cb_ctx, &cred); 3157189251Ssam 3158189251Ssam os_free(wps->new_psk); 3159189251Ssam wps->new_psk = NULL; 3160189251Ssam } 3161189251Ssam 3162214734Srpaulo if (!wps->wps->ap && !wps->er) 3163209158Srpaulo wps_sta_cred_cb(wps); 3164189251Ssam 3165189251Ssam if (wps->new_psk) { 3166189251Ssam if (wps_cb_new_psk(wps->wps->registrar, wps->mac_addr_e, 3167189251Ssam wps->new_psk, wps->new_psk_len)) { 3168189251Ssam wpa_printf(MSG_DEBUG, "WPS: Failed to configure the " 3169189251Ssam "new PSK"); 3170189251Ssam } 3171189251Ssam os_free(wps->new_psk); 3172189251Ssam wps->new_psk = NULL; 3173189251Ssam } 3174189251Ssam 3175252726Srpaulo wps_cb_reg_success(wps->wps->registrar, wps->mac_addr_e, wps->uuid_e, 3176252726Srpaulo wps->dev_password, wps->dev_password_len); 3177189251Ssam 3178189251Ssam if (wps->pbc) { 3179189251Ssam wps_registrar_remove_pbc_session(wps->wps->registrar, 3180252726Srpaulo wps->uuid_e, 3181252726Srpaulo wps->p2p_dev_addr); 3182189251Ssam wps_registrar_pbc_completed(wps->wps->registrar); 3183252726Srpaulo os_get_time(&wps->wps->registrar->pbc_ignore_start); 3184252726Srpaulo os_memcpy(wps->wps->registrar->pbc_ignore_uuid, wps->uuid_e, 3185252726Srpaulo WPS_UUID_LEN); 3186209158Srpaulo } else { 3187209158Srpaulo wps_registrar_pin_completed(wps->wps->registrar); 3188189251Ssam } 3189252726Srpaulo /* TODO: maintain AuthorizedMACs somewhere separately for each ER and 3190252726Srpaulo * merge them into APs own list.. */ 3191189251Ssam 3192189251Ssam wps_success_event(wps->wps); 3193189251Ssam 3194189251Ssam return WPS_DONE; 3195189251Ssam} 3196189251Ssam 3197189251Ssam 3198189251Ssamenum wps_process_res wps_registrar_process_msg(struct wps_data *wps, 3199189251Ssam enum wsc_op_code op_code, 3200189251Ssam const struct wpabuf *msg) 3201189251Ssam{ 3202189251Ssam enum wps_process_res ret; 3203189251Ssam 3204189251Ssam wpa_printf(MSG_DEBUG, "WPS: Processing received message (len=%lu " 3205189251Ssam "op_code=%d)", 3206189251Ssam (unsigned long) wpabuf_len(msg), op_code); 3207189251Ssam 3208189251Ssam#ifdef CONFIG_WPS_UPNP 3209189251Ssam if (wps->wps->wps_upnp && op_code == WSC_MSG && wps->ext_reg == 1) { 3210189251Ssam struct wps_parse_attr attr; 3211189251Ssam if (wps_parse_msg(msg, &attr) == 0 && attr.msg_type && 3212189251Ssam *attr.msg_type == WPS_M3) 3213189251Ssam wps->ext_reg = 2; /* past M2/M2D phase */ 3214189251Ssam } 3215189251Ssam if (wps->ext_reg > 1) 3216189251Ssam wps_registrar_free_pending_m2(wps->wps); 3217189251Ssam if (wps->wps->wps_upnp && wps->ext_reg && 3218189251Ssam wps->wps->upnp_msgs == NULL && 3219209158Srpaulo (op_code == WSC_MSG || op_code == WSC_Done || op_code == WSC_NACK)) 3220209158Srpaulo { 3221189251Ssam struct wps_parse_attr attr; 3222189251Ssam int type; 3223189251Ssam if (wps_parse_msg(msg, &attr) < 0 || attr.msg_type == NULL) 3224189251Ssam type = -1; 3225189251Ssam else 3226189251Ssam type = *attr.msg_type; 3227189251Ssam wpa_printf(MSG_DEBUG, "WPS: Sending received message (type %d)" 3228189251Ssam " to external Registrar for processing", type); 3229189251Ssam upnp_wps_device_send_wlan_event(wps->wps->wps_upnp, 3230189251Ssam wps->mac_addr_e, 3231189251Ssam UPNP_WPS_WLANEVENT_TYPE_EAP, 3232189251Ssam msg); 3233189251Ssam if (op_code == WSC_MSG) 3234189251Ssam return WPS_PENDING; 3235189251Ssam } else if (wps->wps->wps_upnp && wps->ext_reg && op_code == WSC_MSG) { 3236189251Ssam wpa_printf(MSG_DEBUG, "WPS: Skip internal processing - using " 3237189251Ssam "external Registrar"); 3238189251Ssam return WPS_CONTINUE; 3239189251Ssam } 3240189251Ssam#endif /* CONFIG_WPS_UPNP */ 3241189251Ssam 3242189251Ssam switch (op_code) { 3243189251Ssam case WSC_MSG: 3244189251Ssam return wps_process_wsc_msg(wps, msg); 3245189251Ssam case WSC_ACK: 3246252726Srpaulo if (wps_validate_wsc_ack(msg) < 0) 3247252726Srpaulo return WPS_FAILURE; 3248189251Ssam return wps_process_wsc_ack(wps, msg); 3249189251Ssam case WSC_NACK: 3250252726Srpaulo if (wps_validate_wsc_nack(msg) < 0) 3251252726Srpaulo return WPS_FAILURE; 3252189251Ssam return wps_process_wsc_nack(wps, msg); 3253189251Ssam case WSC_Done: 3254252726Srpaulo if (wps_validate_wsc_done(msg) < 0) 3255252726Srpaulo return WPS_FAILURE; 3256189251Ssam ret = wps_process_wsc_done(wps, msg); 3257189251Ssam if (ret == WPS_FAILURE) { 3258189251Ssam wps->state = SEND_WSC_NACK; 3259252726Srpaulo wps_fail_event(wps->wps, WPS_WSC_DONE, 3260252726Srpaulo wps->config_error, 3261252726Srpaulo wps->error_indication); 3262189251Ssam } 3263189251Ssam return ret; 3264189251Ssam default: 3265189251Ssam wpa_printf(MSG_DEBUG, "WPS: Unsupported op_code %d", op_code); 3266189251Ssam return WPS_FAILURE; 3267189251Ssam } 3268189251Ssam} 3269189251Ssam 3270189251Ssam 3271189251Ssamint wps_registrar_update_ie(struct wps_registrar *reg) 3272189251Ssam{ 3273189251Ssam return wps_set_ie(reg); 3274189251Ssam} 3275189251Ssam 3276189251Ssam 3277189251Ssamstatic void wps_registrar_set_selected_timeout(void *eloop_ctx, 3278189251Ssam void *timeout_ctx) 3279189251Ssam{ 3280189251Ssam struct wps_registrar *reg = eloop_ctx; 3281189251Ssam 3282214734Srpaulo wpa_printf(MSG_DEBUG, "WPS: Selected Registrar timeout - " 3283214734Srpaulo "unselect internal Registrar"); 3284189251Ssam reg->selected_registrar = 0; 3285189251Ssam reg->pbc = 0; 3286214734Srpaulo wps_registrar_selected_registrar_changed(reg); 3287189251Ssam} 3288189251Ssam 3289189251Ssam 3290214734Srpaulo#ifdef CONFIG_WPS_UPNP 3291214734Srpaulostatic void wps_registrar_sel_reg_add(struct wps_registrar *reg, 3292214734Srpaulo struct subscription *s) 3293214734Srpaulo{ 3294252726Srpaulo int i, j; 3295214734Srpaulo wpa_printf(MSG_DEBUG, "WPS: External Registrar selected (dev_pw_id=%d " 3296214734Srpaulo "config_methods=0x%x)", 3297214734Srpaulo s->dev_password_id, s->config_methods); 3298214734Srpaulo reg->sel_reg_union = 1; 3299214734Srpaulo if (reg->sel_reg_dev_password_id_override != DEV_PW_PUSHBUTTON) 3300214734Srpaulo reg->sel_reg_dev_password_id_override = s->dev_password_id; 3301214734Srpaulo if (reg->sel_reg_config_methods_override == -1) 3302214734Srpaulo reg->sel_reg_config_methods_override = 0; 3303214734Srpaulo reg->sel_reg_config_methods_override |= s->config_methods; 3304252726Srpaulo for (i = 0; i < WPS_MAX_AUTHORIZED_MACS; i++) 3305252726Srpaulo if (is_zero_ether_addr(reg->authorized_macs_union[i])) 3306252726Srpaulo break; 3307252726Srpaulo for (j = 0; i < WPS_MAX_AUTHORIZED_MACS && j < WPS_MAX_AUTHORIZED_MACS; 3308252726Srpaulo j++) { 3309252726Srpaulo if (is_zero_ether_addr(s->authorized_macs[j])) 3310252726Srpaulo break; 3311252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Add authorized MAC into union: " 3312252726Srpaulo MACSTR, MAC2STR(s->authorized_macs[j])); 3313252726Srpaulo os_memcpy(reg->authorized_macs_union[i], 3314252726Srpaulo s->authorized_macs[j], ETH_ALEN); 3315252726Srpaulo i++; 3316252726Srpaulo } 3317252726Srpaulo wpa_hexdump(MSG_DEBUG, "WPS: Authorized MACs union", 3318252726Srpaulo (u8 *) reg->authorized_macs_union, 3319252726Srpaulo sizeof(reg->authorized_macs_union)); 3320214734Srpaulo} 3321214734Srpaulo#endif /* CONFIG_WPS_UPNP */ 3322214734Srpaulo 3323214734Srpaulo 3324214734Srpaulostatic void wps_registrar_sel_reg_union(struct wps_registrar *reg) 3325214734Srpaulo{ 3326214734Srpaulo#ifdef CONFIG_WPS_UPNP 3327214734Srpaulo struct subscription *s; 3328214734Srpaulo 3329214734Srpaulo if (reg->wps->wps_upnp == NULL) 3330214734Srpaulo return; 3331214734Srpaulo 3332214734Srpaulo dl_list_for_each(s, ®->wps->wps_upnp->subscriptions, 3333214734Srpaulo struct subscription, list) { 3334214734Srpaulo struct subscr_addr *sa; 3335214734Srpaulo sa = dl_list_first(&s->addr_list, struct subscr_addr, list); 3336214734Srpaulo if (sa) { 3337214734Srpaulo wpa_printf(MSG_DEBUG, "WPS: External Registrar %s:%d", 3338214734Srpaulo inet_ntoa(sa->saddr.sin_addr), 3339214734Srpaulo ntohs(sa->saddr.sin_port)); 3340214734Srpaulo } 3341214734Srpaulo if (s->selected_registrar) 3342214734Srpaulo wps_registrar_sel_reg_add(reg, s); 3343214734Srpaulo else 3344214734Srpaulo wpa_printf(MSG_DEBUG, "WPS: External Registrar not " 3345214734Srpaulo "selected"); 3346214734Srpaulo } 3347214734Srpaulo#endif /* CONFIG_WPS_UPNP */ 3348214734Srpaulo} 3349214734Srpaulo 3350214734Srpaulo 3351189251Ssam/** 3352214734Srpaulo * wps_registrar_selected_registrar_changed - SetSelectedRegistrar change 3353189251Ssam * @reg: Registrar data from wps_registrar_init() 3354189251Ssam * 3355214734Srpaulo * This function is called when selected registrar state changes, e.g., when an 3356214734Srpaulo * AP receives a SetSelectedRegistrar UPnP message. 3357189251Ssam */ 3358214734Srpaulovoid wps_registrar_selected_registrar_changed(struct wps_registrar *reg) 3359189251Ssam{ 3360214734Srpaulo wpa_printf(MSG_DEBUG, "WPS: Selected registrar information changed"); 3361189251Ssam 3362214734Srpaulo reg->sel_reg_union = reg->selected_registrar; 3363214734Srpaulo reg->sel_reg_dev_password_id_override = -1; 3364214734Srpaulo reg->sel_reg_config_methods_override = -1; 3365252726Srpaulo os_memcpy(reg->authorized_macs_union, reg->authorized_macs, 3366252726Srpaulo WPS_MAX_AUTHORIZED_MACS * ETH_ALEN); 3367252726Srpaulo wpa_hexdump(MSG_DEBUG, "WPS: Authorized MACs union (start with own)", 3368252726Srpaulo (u8 *) reg->authorized_macs_union, 3369252726Srpaulo sizeof(reg->authorized_macs_union)); 3370214734Srpaulo if (reg->selected_registrar) { 3371252726Srpaulo u16 methods; 3372252726Srpaulo 3373252726Srpaulo methods = reg->wps->config_methods & ~WPS_CONFIG_PUSHBUTTON; 3374252726Srpaulo#ifdef CONFIG_WPS2 3375252726Srpaulo methods &= ~(WPS_CONFIG_VIRT_PUSHBUTTON | 3376252726Srpaulo WPS_CONFIG_PHY_PUSHBUTTON); 3377252726Srpaulo#endif /* CONFIG_WPS2 */ 3378214734Srpaulo if (reg->pbc) { 3379214734Srpaulo reg->sel_reg_dev_password_id_override = 3380214734Srpaulo DEV_PW_PUSHBUTTON; 3381252726Srpaulo wps_set_pushbutton(&methods, reg->wps->config_methods); 3382214734Srpaulo } 3383214734Srpaulo wpa_printf(MSG_DEBUG, "WPS: Internal Registrar selected " 3384214734Srpaulo "(pbc=%d)", reg->pbc); 3385252726Srpaulo reg->sel_reg_config_methods_override = methods; 3386214734Srpaulo } else 3387214734Srpaulo wpa_printf(MSG_DEBUG, "WPS: Internal Registrar not selected"); 3388189251Ssam 3389214734Srpaulo wps_registrar_sel_reg_union(reg); 3390189251Ssam 3391214734Srpaulo wps_set_ie(reg); 3392214734Srpaulo wps_cb_set_sel_reg(reg); 3393214734Srpaulo} 3394214734Srpaulo 3395214734Srpaulo 3396214734Srpauloint wps_registrar_get_info(struct wps_registrar *reg, const u8 *addr, 3397214734Srpaulo char *buf, size_t buflen) 3398214734Srpaulo{ 3399214734Srpaulo struct wps_registrar_device *d; 3400214734Srpaulo int len = 0, ret; 3401214734Srpaulo char uuid[40]; 3402214734Srpaulo char devtype[WPS_DEV_TYPE_BUFSIZE]; 3403214734Srpaulo 3404214734Srpaulo d = wps_device_get(reg, addr); 3405214734Srpaulo if (d == NULL) 3406189251Ssam return 0; 3407214734Srpaulo if (uuid_bin2str(d->uuid, uuid, sizeof(uuid))) 3408214734Srpaulo return 0; 3409189251Ssam 3410214734Srpaulo ret = os_snprintf(buf + len, buflen - len, 3411214734Srpaulo "wpsUuid=%s\n" 3412214734Srpaulo "wpsPrimaryDeviceType=%s\n" 3413214734Srpaulo "wpsDeviceName=%s\n" 3414214734Srpaulo "wpsManufacturer=%s\n" 3415214734Srpaulo "wpsModelName=%s\n" 3416214734Srpaulo "wpsModelNumber=%s\n" 3417214734Srpaulo "wpsSerialNumber=%s\n", 3418214734Srpaulo uuid, 3419214734Srpaulo wps_dev_type_bin2str(d->dev.pri_dev_type, devtype, 3420214734Srpaulo sizeof(devtype)), 3421214734Srpaulo d->dev.device_name ? d->dev.device_name : "", 3422214734Srpaulo d->dev.manufacturer ? d->dev.manufacturer : "", 3423214734Srpaulo d->dev.model_name ? d->dev.model_name : "", 3424214734Srpaulo d->dev.model_number ? d->dev.model_number : "", 3425214734Srpaulo d->dev.serial_number ? d->dev.serial_number : ""); 3426214734Srpaulo if (ret < 0 || (size_t) ret >= buflen - len) 3427214734Srpaulo return len; 3428214734Srpaulo len += ret; 3429189251Ssam 3430214734Srpaulo return len; 3431189251Ssam} 3432252726Srpaulo 3433252726Srpaulo 3434252726Srpauloint wps_registrar_config_ap(struct wps_registrar *reg, 3435252726Srpaulo struct wps_credential *cred) 3436252726Srpaulo{ 3437252726Srpaulo#ifdef CONFIG_WPS2 3438252726Srpaulo printf("encr_type=0x%x\n", cred->encr_type); 3439252726Srpaulo if (!(cred->encr_type & (WPS_ENCR_NONE | WPS_ENCR_TKIP | 3440252726Srpaulo WPS_ENCR_AES))) { 3441252726Srpaulo if (cred->encr_type & WPS_ENCR_WEP) { 3442252726Srpaulo wpa_printf(MSG_INFO, "WPS: Reject new AP settings " 3443252726Srpaulo "due to WEP configuration"); 3444252726Srpaulo return -1; 3445252726Srpaulo } 3446252726Srpaulo 3447252726Srpaulo wpa_printf(MSG_INFO, "WPS: Reject new AP settings due to " 3448252726Srpaulo "invalid encr_type 0x%x", cred->encr_type); 3449252726Srpaulo return -1; 3450252726Srpaulo } 3451252726Srpaulo 3452252726Srpaulo if ((cred->encr_type & (WPS_ENCR_TKIP | WPS_ENCR_AES)) == 3453252726Srpaulo WPS_ENCR_TKIP) { 3454252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Upgrade encr_type TKIP -> " 3455252726Srpaulo "TKIP+AES"); 3456252726Srpaulo cred->encr_type |= WPS_ENCR_AES; 3457252726Srpaulo } 3458252726Srpaulo 3459252726Srpaulo if ((cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) == 3460252726Srpaulo WPS_AUTH_WPAPSK) { 3461252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Upgrade auth_type WPAPSK -> " 3462252726Srpaulo "WPAPSK+WPA2PSK"); 3463252726Srpaulo cred->auth_type |= WPS_AUTH_WPA2PSK; 3464252726Srpaulo } 3465252726Srpaulo#endif /* CONFIG_WPS2 */ 3466252726Srpaulo 3467252726Srpaulo if (reg->wps->cred_cb) 3468252726Srpaulo return reg->wps->cred_cb(reg->wps->cb_ctx, cred); 3469252726Srpaulo 3470252726Srpaulo return -1; 3471252726Srpaulo} 3472252726Srpaulo 3473252726Srpaulo 3474252726Srpaulo#ifdef CONFIG_WPS_NFC 3475252726Srpaulo 3476252726Srpauloint wps_registrar_add_nfc_pw_token(struct wps_registrar *reg, 3477252726Srpaulo const u8 *pubkey_hash, u16 pw_id, 3478252726Srpaulo const u8 *dev_pw, size_t dev_pw_len) 3479252726Srpaulo{ 3480252726Srpaulo struct wps_nfc_pw_token *token; 3481252726Srpaulo 3482252726Srpaulo if (dev_pw_len > WPS_OOB_DEVICE_PASSWORD_LEN) 3483252726Srpaulo return -1; 3484252726Srpaulo 3485252726Srpaulo wps_free_nfc_pw_tokens(®->nfc_pw_tokens, pw_id); 3486252726Srpaulo 3487252726Srpaulo token = os_zalloc(sizeof(*token)); 3488252726Srpaulo if (token == NULL) 3489252726Srpaulo return -1; 3490252726Srpaulo 3491252726Srpaulo os_memcpy(token->pubkey_hash, pubkey_hash, WPS_OOB_PUBKEY_HASH_LEN); 3492252726Srpaulo token->pw_id = pw_id; 3493252726Srpaulo os_memcpy(token->dev_pw, dev_pw, dev_pw_len); 3494252726Srpaulo token->dev_pw_len = dev_pw_len; 3495252726Srpaulo 3496252726Srpaulo dl_list_add(®->nfc_pw_tokens, &token->list); 3497252726Srpaulo 3498252726Srpaulo reg->selected_registrar = 1; 3499252726Srpaulo reg->pbc = 0; 3500252726Srpaulo wps_registrar_add_authorized_mac(reg, 3501252726Srpaulo (u8 *) "\xff\xff\xff\xff\xff\xff"); 3502252726Srpaulo wps_registrar_selected_registrar_changed(reg); 3503252726Srpaulo eloop_cancel_timeout(wps_registrar_set_selected_timeout, reg, NULL); 3504252726Srpaulo eloop_register_timeout(WPS_PBC_WALK_TIME, 0, 3505252726Srpaulo wps_registrar_set_selected_timeout, 3506252726Srpaulo reg, NULL); 3507252726Srpaulo 3508252726Srpaulo return 0; 3509252726Srpaulo} 3510252726Srpaulo 3511252726Srpaulo 3512252726Srpauloint wps_registrar_add_nfc_password_token(struct wps_registrar *reg, 3513252726Srpaulo const u8 *oob_dev_pw, 3514252726Srpaulo size_t oob_dev_pw_len) 3515252726Srpaulo{ 3516252726Srpaulo const u8 *pos, *hash, *dev_pw; 3517252726Srpaulo u16 id; 3518252726Srpaulo size_t dev_pw_len; 3519252726Srpaulo 3520252726Srpaulo if (oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2 + 3521252726Srpaulo WPS_OOB_DEVICE_PASSWORD_MIN_LEN || 3522252726Srpaulo oob_dev_pw_len > WPS_OOB_PUBKEY_HASH_LEN + 2 + 3523252726Srpaulo WPS_OOB_DEVICE_PASSWORD_LEN) 3524252726Srpaulo return -1; 3525252726Srpaulo 3526252726Srpaulo hash = oob_dev_pw; 3527252726Srpaulo pos = oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN; 3528252726Srpaulo id = WPA_GET_BE16(pos); 3529252726Srpaulo dev_pw = pos + 2; 3530252726Srpaulo dev_pw_len = oob_dev_pw + oob_dev_pw_len - dev_pw; 3531252726Srpaulo 3532252726Srpaulo wpa_printf(MSG_DEBUG, "WPS: Add NFC Password Token for Password ID %u", 3533252726Srpaulo id); 3534252726Srpaulo 3535252726Srpaulo wpa_hexdump(MSG_DEBUG, "WPS: Public Key Hash", 3536252726Srpaulo hash, WPS_OOB_PUBKEY_HASH_LEN); 3537252726Srpaulo wpa_hexdump_key(MSG_DEBUG, "WPS: Device Password", dev_pw, dev_pw_len); 3538252726Srpaulo 3539252726Srpaulo return wps_registrar_add_nfc_pw_token(reg, hash, id, dev_pw, 3540252726Srpaulo dev_pw_len); 3541252726Srpaulo} 3542252726Srpaulo 3543252726Srpaulo 3544252726Srpaulovoid wps_registrar_remove_nfc_pw_token(struct wps_registrar *reg, 3545252726Srpaulo struct wps_nfc_pw_token *token) 3546252726Srpaulo{ 3547252726Srpaulo wps_registrar_remove_authorized_mac(reg, 3548252726Srpaulo (u8 *) "\xff\xff\xff\xff\xff\xff"); 3549252726Srpaulo wps_registrar_selected_registrar_changed(reg); 3550252726Srpaulo} 3551252726Srpaulo 3552252726Srpaulo#endif /* CONFIG_WPS_NFC */ 3553