X-Git-Url: http://www.project-moonshot.org/gitweb/?a=blobdiff_plain;f=libeap%2Fsrc%2Feap_peer%2Feap_wsc.c;fp=libeap%2Fsrc%2Feap_peer%2Feap_wsc.c;h=0000000000000000000000000000000000000000;hb=38791e2c8e2c94ed906593931831bda6577d5346;hp=09d8a1c8a1b7b7de6908ea8f1aca9c222a4c9e1a;hpb=1d91db0ace57f0b63665c0303eae0b347debaef7;p=mech_eap.git

diff --git a/libeap/src/eap_peer/eap_wsc.c b/libeap/src/eap_peer/eap_wsc.c
deleted file mode 100644
index 09d8a1c..0000000
--- a/libeap/src/eap_peer/eap_wsc.c
+++ /dev/null
@@ -1,553 +0,0 @@
-/*
- * EAP-WSC peer for Wi-Fi Protected Setup
- * Copyright (c) 2007-2009, Jouni Malinen <j@w1.fi>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Alternatively, this software may be distributed under the terms of BSD
- * license.
- *
- * See README and COPYING for more details.
- */
-
-#include "includes.h"
-
-#include "common.h"
-#include "uuid.h"
-#include "eap_i.h"
-#include "eap_common/eap_wsc_common.h"
-#include "wps/wps.h"
-#include "wps/wps_defs.h"
-
-
-struct eap_wsc_data {
-	enum { WAIT_START, MESG, FRAG_ACK, WAIT_FRAG_ACK, DONE, FAIL } state;
-	int registrar;
-	struct wpabuf *in_buf;
-	struct wpabuf *out_buf;
-	enum wsc_op_code in_op_code, out_op_code;
-	size_t out_used;
-	size_t fragment_size;
-	struct wps_data *wps;
-	struct wps_context *wps_ctx;
-};
-
-
-static const char * eap_wsc_state_txt(int state)
-{
-	switch (state) {
-	case WAIT_START:
-		return "WAIT_START";
-	case MESG:
-		return "MESG";
-	case FRAG_ACK:
-		return "FRAG_ACK";
-	case WAIT_FRAG_ACK:
-		return "WAIT_FRAG_ACK";
-	case DONE:
-		return "DONE";
-	case FAIL:
-		return "FAIL";
-	default:
-		return "?";
-	}
-}
-
-
-static void eap_wsc_state(struct eap_wsc_data *data, int state)
-{
-	wpa_printf(MSG_DEBUG, "EAP-WSC: %s -> %s",
-		   eap_wsc_state_txt(data->state),
-		   eap_wsc_state_txt(state));
-	data->state = state;
-}
-
-
-static int eap_wsc_new_ap_settings(struct wps_credential *cred,
-				   const char *params)
-{
-	const char *pos, *end;
-	size_t len;
-
-	os_memset(cred, 0, sizeof(*cred));
-
-	pos = os_strstr(params, "new_ssid=");
-	if (pos == NULL)
-		return 0;
-	pos += 9;
-	end = os_strchr(pos, ' ');
-	if (end == NULL)
-		len = os_strlen(pos);
-	else
-		len = end - pos;
-	if ((len & 1) || len > 2 * sizeof(cred->ssid) ||
-	    hexstr2bin(pos, cred->ssid, len / 2))
-		return -1;
-	cred->ssid_len = len / 2;
-
-	pos = os_strstr(params, "new_auth=");
-	if (pos == NULL)
-		return -1;
-	if (os_strncmp(pos + 9, "OPEN", 4) == 0)
-		cred->auth_type = WPS_AUTH_OPEN;
-	else if (os_strncmp(pos + 9, "WPAPSK", 6) == 0)
-		cred->auth_type = WPS_AUTH_WPAPSK;
-	else if (os_strncmp(pos + 9, "WPA2PSK", 7) == 0)
-		cred->auth_type = WPS_AUTH_WPA2PSK;
-	else
-		return -1;
-
-	pos = os_strstr(params, "new_encr=");
-	if (pos == NULL)
-		return -1;
-	if (os_strncmp(pos + 9, "NONE", 4) == 0)
-		cred->encr_type = WPS_ENCR_NONE;
-	else if (os_strncmp(pos + 9, "WEP", 3) == 0)
-		cred->encr_type = WPS_ENCR_WEP;
-	else if (os_strncmp(pos + 9, "TKIP", 4) == 0)
-		cred->encr_type = WPS_ENCR_TKIP;
-	else if (os_strncmp(pos + 9, "CCMP", 4) == 0)
-		cred->encr_type = WPS_ENCR_AES;
-	else
-		return -1;
-
-	pos = os_strstr(params, "new_key=");
-	if (pos == NULL)
-		return 0;
-	pos += 8;
-	end = os_strchr(pos, ' ');
-	if (end == NULL)
-		len = os_strlen(pos);
-	else
-		len = end - pos;
-	if ((len & 1) || len > 2 * sizeof(cred->key) ||
-	    hexstr2bin(pos, cred->key, len / 2))
-		return -1;
-	cred->key_len = len / 2;
-
-	return 1;
-}
-
-
-static void * eap_wsc_init(struct eap_sm *sm)
-{
-	struct eap_wsc_data *data;
-	const u8 *identity;
-	size_t identity_len;
-	int registrar;
-	struct wps_config cfg;
-	const char *pos;
-	const char *phase1;
-	struct wps_context *wps;
-	struct wps_credential new_ap_settings;
-	int res;
-
-	wps = sm->wps;
-	if (wps == NULL) {
-		wpa_printf(MSG_ERROR, "EAP-WSC: WPS context not available");
-		return NULL;
-	}
-
-	identity = eap_get_config_identity(sm, &identity_len);
-
-	if (identity && identity_len == WSC_ID_REGISTRAR_LEN &&
-	    os_memcmp(identity, WSC_ID_REGISTRAR, WSC_ID_REGISTRAR_LEN) == 0)
-		registrar = 1; /* Supplicant is Registrar */
-	else if (identity && identity_len == WSC_ID_ENROLLEE_LEN &&
-	    os_memcmp(identity, WSC_ID_ENROLLEE, WSC_ID_ENROLLEE_LEN) == 0)
-		registrar = 0; /* Supplicant is Enrollee */
-	else {
-		wpa_hexdump_ascii(MSG_INFO, "EAP-WSC: Unexpected identity",
-				  identity, identity_len);
-		return NULL;
-	}
-
-	data = os_zalloc(sizeof(*data));
-	if (data == NULL)
-		return NULL;
-	data->state = registrar ? MESG : WAIT_START;
-	data->registrar = registrar;
-	data->wps_ctx = wps;
-
-	os_memset(&cfg, 0, sizeof(cfg));
-	cfg.wps = wps;
-	cfg.registrar = registrar;
-
-	phase1 = eap_get_config_phase1(sm);
-	if (phase1 == NULL) {
-		wpa_printf(MSG_INFO, "EAP-WSC: phase1 configuration data not "
-			   "set");
-		os_free(data);
-		return NULL;
-	}
-
-	pos = os_strstr(phase1, "pin=");
-	if (pos) {
-		pos += 4;
-		cfg.pin = (const u8 *) pos;
-		while (*pos != '\0' && *pos != ' ')
-			pos++;
-		cfg.pin_len = pos - (const char *) cfg.pin;
-	} else {
-		pos = os_strstr(phase1, "pbc=1");
-		if (pos)
-			cfg.pbc = 1;
-	}
-
-	if (cfg.pin == NULL && !cfg.pbc) {
-		wpa_printf(MSG_INFO, "EAP-WSC: PIN or PBC not set in phase1 "
-			   "configuration data");
-		os_free(data);
-		return NULL;
-	}
-
-	pos = os_strstr(phase1, "dev_pw_id=");
-	if (pos && cfg.pin)
-		cfg.dev_pw_id = atoi(pos + 10);
-
-	res = eap_wsc_new_ap_settings(&new_ap_settings, phase1);
-	if (res < 0) {
-		os_free(data);
-		return NULL;
-	}
-	if (res == 1) {
-		wpa_printf(MSG_DEBUG, "EAP-WSC: Provide new AP settings for "
-			   "WPS");
-		cfg.new_ap_settings = &new_ap_settings;
-	}
-
-	data->wps = wps_init(&cfg);
-	if (data->wps == NULL) {
-		os_free(data);
-		return NULL;
-	}
-	res = eap_get_config_fragment_size(sm);
-	if (res > 0)
-		data->fragment_size = res;
-	else
-		data->fragment_size = WSC_FRAGMENT_SIZE;
-	wpa_printf(MSG_DEBUG, "EAP-WSC: Fragment size limit %u",
-		   (unsigned int) data->fragment_size);
-
-	if (registrar && cfg.pin) {
-		wps_registrar_add_pin(data->wps_ctx->registrar, NULL, NULL,
-				      cfg.pin, cfg.pin_len, 0);
-	}
-
-	/* Use reduced client timeout for WPS to avoid long wait */
-	if (sm->ClientTimeout > 30)
-		sm->ClientTimeout = 30;
-
-	return data;
-}
-
-
-static void eap_wsc_deinit(struct eap_sm *sm, void *priv)
-{
-	struct eap_wsc_data *data = priv;
-	wpabuf_free(data->in_buf);
-	wpabuf_free(data->out_buf);
-	wps_deinit(data->wps);
-	os_free(data->wps_ctx->network_key);
-	data->wps_ctx->network_key = NULL;
-	os_free(data);
-}
-
-
-static struct wpabuf * eap_wsc_build_msg(struct eap_wsc_data *data,
-					 struct eap_method_ret *ret, u8 id)
-{
-	struct wpabuf *resp;
-	u8 flags;
-	size_t send_len, plen;
-
-	ret->ignore = FALSE;
-	wpa_printf(MSG_DEBUG, "EAP-WSC: Generating Response");
-	ret->allowNotifications = TRUE;
-
-	flags = 0;
-	send_len = wpabuf_len(data->out_buf) - data->out_used;
-	if (2 + send_len > data->fragment_size) {
-		send_len = data->fragment_size - 2;
-		flags |= WSC_FLAGS_MF;
-		if (data->out_used == 0) {
-			flags |= WSC_FLAGS_LF;
-			send_len -= 2;
-		}
-	}
-	plen = 2 + send_len;
-	if (flags & WSC_FLAGS_LF)
-		plen += 2;
-	resp = eap_msg_alloc(EAP_VENDOR_WFA, EAP_VENDOR_TYPE_WSC, plen,
-			     EAP_CODE_RESPONSE, id);
-	if (resp == NULL)
-		return NULL;
-
-	wpabuf_put_u8(resp, data->out_op_code); /* Op-Code */
-	wpabuf_put_u8(resp, flags); /* Flags */
-	if (flags & WSC_FLAGS_LF)
-		wpabuf_put_be16(resp, wpabuf_len(data->out_buf));
-
-	wpabuf_put_data(resp, wpabuf_head_u8(data->out_buf) + data->out_used,
-			send_len);
-	data->out_used += send_len;
-
-	ret->methodState = METHOD_MAY_CONT;
-	ret->decision = DECISION_FAIL;
-
-	if (data->out_used == wpabuf_len(data->out_buf)) {
-		wpa_printf(MSG_DEBUG, "EAP-WSC: Sending out %lu bytes "
-			   "(message sent completely)",
-			   (unsigned long) send_len);
-		wpabuf_free(data->out_buf);
-		data->out_buf = NULL;
-		data->out_used = 0;
-		if ((data->state == FAIL && data->out_op_code == WSC_ACK) ||
-		    data->out_op_code == WSC_NACK ||
-		    data->out_op_code == WSC_Done) {
-			eap_wsc_state(data, FAIL);
-			ret->methodState = METHOD_DONE;
-		} else
-			eap_wsc_state(data, MESG);
-	} else {
-		wpa_printf(MSG_DEBUG, "EAP-WSC: Sending out %lu bytes "
-			   "(%lu more to send)", (unsigned long) send_len,
-			   (unsigned long) wpabuf_len(data->out_buf) -
-			   data->out_used);
-		eap_wsc_state(data, WAIT_FRAG_ACK);
-	}
-
-	return resp;
-}
-
-
-static int eap_wsc_process_cont(struct eap_wsc_data *data,
-				const u8 *buf, size_t len, u8 op_code)
-{
-	/* Process continuation of a pending message */
-	if (op_code != data->in_op_code) {
-		wpa_printf(MSG_DEBUG, "EAP-WSC: Unexpected Op-Code %d in "
-			   "fragment (expected %d)",
-			   op_code, data->in_op_code);
-		return -1;
-	}
-
-	if (len > wpabuf_tailroom(data->in_buf)) {
-		wpa_printf(MSG_DEBUG, "EAP-WSC: Fragment overflow");
-		eap_wsc_state(data, FAIL);
-		return -1;
-	}
-
-	wpabuf_put_data(data->in_buf, buf, len);
-	wpa_printf(MSG_DEBUG, "EAP-WSC: Received %lu bytes, waiting "
-		   "for %lu bytes more", (unsigned long) len,
-		   (unsigned long) wpabuf_tailroom(data->in_buf));
-
-	return 0;
-}
-
-
-static struct wpabuf * eap_wsc_process_fragment(struct eap_wsc_data *data,
-						struct eap_method_ret *ret,
-						u8 id, u8 flags, u8 op_code,
-						u16 message_length,
-						const u8 *buf, size_t len)
-{
-	/* Process a fragment that is not the last one of the message */
-	if (data->in_buf == NULL && !(flags & WSC_FLAGS_LF)) {
-		wpa_printf(MSG_DEBUG, "EAP-WSC: No Message Length field in a "
-			   "fragmented packet");
-		ret->ignore = TRUE;
-		return NULL;
-	}
-
-	if (data->in_buf == NULL) {
-		/* First fragment of the message */
-		data->in_buf = wpabuf_alloc(message_length);
-		if (data->in_buf == NULL) {
-			wpa_printf(MSG_DEBUG, "EAP-WSC: No memory for "
-				   "message");
-			ret->ignore = TRUE;
-			return NULL;
-		}
-		data->in_op_code = op_code;
-		wpabuf_put_data(data->in_buf, buf, len);
-		wpa_printf(MSG_DEBUG, "EAP-WSC: Received %lu bytes in first "
-			   "fragment, waiting for %lu bytes more",
-			   (unsigned long) len,
-			   (unsigned long) wpabuf_tailroom(data->in_buf));
-	}
-
-	return eap_wsc_build_frag_ack(id, EAP_CODE_RESPONSE);
-}
-
-
-static struct wpabuf * eap_wsc_process(struct eap_sm *sm, void *priv,
-				       struct eap_method_ret *ret,
-				       const struct wpabuf *reqData)
-{
-	struct eap_wsc_data *data = priv;
-	const u8 *start, *pos, *end;
-	size_t len;
-	u8 op_code, flags, id;
-	u16 message_length = 0;
-	enum wps_process_res res;
-	struct wpabuf tmpbuf;
-	struct wpabuf *r;
-
-	pos = eap_hdr_validate(EAP_VENDOR_WFA, EAP_VENDOR_TYPE_WSC, reqData,
-			       &len);
-	if (pos == NULL || len < 2) {
-		ret->ignore = TRUE;
-		return NULL;
-	}
-
-	id = eap_get_id(reqData);
-
-	start = pos;
-	end = start + len;
-
-	op_code = *pos++;
-	flags = *pos++;
-	if (flags & WSC_FLAGS_LF) {
-		if (end - pos < 2) {
-			wpa_printf(MSG_DEBUG, "EAP-WSC: Message underflow");
-			ret->ignore = TRUE;
-			return NULL;
-		}
-		message_length = WPA_GET_BE16(pos);
-		pos += 2;
-
-		if (message_length < end - pos) {
-			wpa_printf(MSG_DEBUG, "EAP-WSC: Invalid Message "
-				   "Length");
-			ret->ignore = TRUE;
-			return NULL;
-		}
-	}
-
-	wpa_printf(MSG_DEBUG, "EAP-WSC: Received packet: Op-Code %d "
-		   "Flags 0x%x Message Length %d",
-		   op_code, flags, message_length);
-
-	if (data->state == WAIT_FRAG_ACK) {
-		if (op_code != WSC_FRAG_ACK) {
-			wpa_printf(MSG_DEBUG, "EAP-WSC: Unexpected Op-Code %d "
-				   "in WAIT_FRAG_ACK state", op_code);
-			ret->ignore = TRUE;
-			return NULL;
-		}
-		wpa_printf(MSG_DEBUG, "EAP-WSC: Fragment acknowledged");
-		eap_wsc_state(data, MESG);
-		return eap_wsc_build_msg(data, ret, id);
-	}
-
-	if (op_code != WSC_ACK && op_code != WSC_NACK && op_code != WSC_MSG &&
-	    op_code != WSC_Done && op_code != WSC_Start) {
-		wpa_printf(MSG_DEBUG, "EAP-WSC: Unexpected Op-Code %d",
-			   op_code);
-		ret->ignore = TRUE;
-		return NULL;
-	}
-
-	if (data->state == WAIT_START) {
-		if (op_code != WSC_Start) {
-			wpa_printf(MSG_DEBUG, "EAP-WSC: Unexpected Op-Code %d "
-				   "in WAIT_START state", op_code);
-			ret->ignore = TRUE;
-			return NULL;
-		}
-		wpa_printf(MSG_DEBUG, "EAP-WSC: Received start");
-		eap_wsc_state(data, MESG);
-		/* Start message has empty payload, skip processing */
-		goto send_msg;
-	} else if (op_code == WSC_Start) {
-		wpa_printf(MSG_DEBUG, "EAP-WSC: Unexpected Op-Code %d",
-			   op_code);
-		ret->ignore = TRUE;
-		return NULL;
-	}
-
-	if (data->in_buf &&
-	    eap_wsc_process_cont(data, pos, end - pos, op_code) < 0) {
-		ret->ignore = TRUE;
-		return NULL;
-	}
-
-	if (flags & WSC_FLAGS_MF) {
-		return eap_wsc_process_fragment(data, ret, id, flags, op_code,
-						message_length, pos,
-						end - pos);
-	}
-
-	if (data->in_buf == NULL) {
-		/* Wrap unfragmented messages as wpabuf without extra copy */
-		wpabuf_set(&tmpbuf, pos, end - pos);
-		data->in_buf = &tmpbuf;
-	}
-
-	res = wps_process_msg(data->wps, op_code, data->in_buf);
-	switch (res) {
-	case WPS_DONE:
-		wpa_printf(MSG_DEBUG, "EAP-WSC: WPS processing completed "
-			   "successfully - wait for EAP failure");
-		eap_wsc_state(data, FAIL);
-		break;
-	case WPS_CONTINUE:
-		eap_wsc_state(data, MESG);
-		break;
-	case WPS_FAILURE:
-	case WPS_PENDING:
-		wpa_printf(MSG_DEBUG, "EAP-WSC: WPS processing failed");
-		eap_wsc_state(data, FAIL);
-		break;
-	}
-
-	if (data->in_buf != &tmpbuf)
-		wpabuf_free(data->in_buf);
-	data->in_buf = NULL;
-
-send_msg:
-	if (data->out_buf == NULL) {
-		data->out_buf = wps_get_msg(data->wps, &data->out_op_code);
-		if (data->out_buf == NULL) {
-			wpa_printf(MSG_DEBUG, "EAP-WSC: Failed to receive "
-				   "message from WPS");
-			return NULL;
-		}
-		data->out_used = 0;
-	}
-
-	eap_wsc_state(data, MESG);
-	r = eap_wsc_build_msg(data, ret, id);
-	if (data->state == FAIL && ret->methodState == METHOD_DONE) {
-		/* Use reduced client timeout for WPS to avoid long wait */
-		if (sm->ClientTimeout > 2)
-			sm->ClientTimeout = 2;
-	}
-	return r;
-}
-
-
-int eap_peer_wsc_register(void)
-{
-	struct eap_method *eap;
-	int ret;
-
-	eap = eap_peer_method_alloc(EAP_PEER_METHOD_INTERFACE_VERSION,
-				    EAP_VENDOR_WFA, EAP_VENDOR_TYPE_WSC,
-				    "WSC");
-	if (eap == NULL)
-		return -1;
-
-	eap->init = eap_wsc_init;
-	eap->deinit = eap_wsc_deinit;
-	eap->process = eap_wsc_process;
-
-	ret = eap_peer_method_register(eap);
-	if (ret)
-		eap_peer_method_free(eap);
-	return ret;
-}