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usr / src / contrib / wpa / src / eap_peer /

📁 ..
📄 eap.c(85.07 KB)
📄 eap.h(11.96 KB)
📄 eap_aka.c(44.5 KB)
📄 eap_config.h(27.24 KB)
📄 eap_eke.c(20.08 KB)
📄 eap_fast.c(48.05 KB)
📄 eap_fast_pac.c(20.71 KB)
📄 eap_fast_pac.h(1.41 KB)
📄 eap_gpsk.c(18.77 KB)
📄 eap_gtc.c(3.35 KB)
📄 eap_i.h(13.51 KB)
📄 eap_ikev2.c(12.79 KB)
📄 eap_leap.c(10.81 KB)
📄 eap_md5.c(2.82 KB)
📄 eap_methods.c(8.63 KB)
📄 eap_methods.h(2.7 KB)
📄 eap_mschapv2.c(25.42 KB)
📄 eap_otp.c(2.1 KB)
📄 eap_pax.c(13.98 KB)
📄 eap_peap.c(37.35 KB)
📄 eap_proxy.h(1.44 KB)
📄 eap_proxy_dummy.c(1.51 KB)
📄 eap_psk.c(13.12 KB)
📄 eap_pwd.c(30.39 KB)
📄 eap_sake.c(12.78 KB)
📄 eap_sim.c(36.06 KB)
📄 eap_teap.c(54.2 KB)
📄 eap_teap_pac.c(20.29 KB)
📄 eap_teap_pac.h(1.41 KB)
📄 eap_tls.c(11.77 KB)
📄 eap_tls_common.c(36.06 KB)
📄 eap_tls_common.h(3.94 KB)
📄 eap_tnc.c(10.06 KB)
📄 eap_ttls.c(47.59 KB)
📄 eap_vendor_test.c(4.19 KB)
📄 eap_wsc.c(14.38 KB)
📄 ikev2.c(30.38 KB)
📄 ikev2.h(1.35 KB)
📄 mschapv2.c(3.58 KB)
📄 mschapv2.h(834 B)
📄 tncc.c(29.92 KB)
📄 tncc.h(994 B)

Editing: eap_md5.c

/*
 * EAP peer method: EAP-MD5 (RFC 3748 and RFC 1994)
 * Copyright (c) 2004-2012, Jouni Malinen <j@w1.fi>
 *
 * This software may be distributed under the terms of the BSD license.
 * See README for more details.
 */

#include "includes.h"

#include "common.h"
#include "eap_i.h"
#include "eap_common/chap.h"

static void * eap_md5_init(struct eap_sm *sm)
{
	/* No need for private data. However, must return non-NULL to indicate
	 * success. */
	return (void *) 1;
}

static void eap_md5_deinit(struct eap_sm *sm, void *priv)
{
}

static struct wpabuf * eap_md5_process(struct eap_sm *sm, void *priv,
				       struct eap_method_ret *ret,
				       const struct wpabuf *reqData)
{
	struct wpabuf *resp;
	const u8 *pos, *challenge, *password;
	u8 *rpos, id;
	size_t len, challenge_len, password_len;

password = eap_get_config_password(sm, &password_len);
	if (password == NULL) {
		wpa_printf(MSG_INFO, "EAP-MD5: Password not configured");
		eap_sm_request_password(sm);
		ret->ignore = TRUE;
		return NULL;
	}

pos = eap_hdr_validate(EAP_VENDOR_IETF, EAP_TYPE_MD5, reqData, &len);
	if (pos == NULL || len == 0) {
		wpa_printf(MSG_INFO, "EAP-MD5: Invalid frame (pos=%p len=%lu)",
			   pos, (unsigned long) len);
		ret->ignore = TRUE;
		return NULL;
	}

/*
	 * CHAP Challenge:
	 * Value-Size (1 octet) | Value(Challenge) | Name(optional)
	 */
	challenge_len = *pos++;
	if (challenge_len == 0 || challenge_len > len - 1) {
		wpa_printf(MSG_INFO, "EAP-MD5: Invalid challenge "
			   "(challenge_len=%lu len=%lu)",
			   (unsigned long) challenge_len, (unsigned long) len);
		ret->ignore = TRUE;
		return NULL;
	}
	ret->ignore = FALSE;
	challenge = pos;
	wpa_hexdump(MSG_MSGDUMP, "EAP-MD5: Challenge",
		    challenge, challenge_len);

wpa_printf(MSG_DEBUG, "EAP-MD5: Generating Challenge Response");
	ret->methodState = METHOD_DONE;
	ret->decision = DECISION_COND_SUCC;
	ret->allowNotifications = TRUE;

resp = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_MD5, 1 + CHAP_MD5_LEN,
			     EAP_CODE_RESPONSE, eap_get_id(reqData));
	if (resp == NULL)
		return NULL;

/*
	 * CHAP Response:
	 * Value-Size (1 octet) | Value(Response) | Name(optional)
	 */
	wpabuf_put_u8(resp, CHAP_MD5_LEN);

id = eap_get_id(resp);
	rpos = wpabuf_put(resp, CHAP_MD5_LEN);
	if (chap_md5(id, password, password_len, challenge, challenge_len,
		     rpos)) {
		wpa_printf(MSG_INFO, "EAP-MD5: CHAP MD5 operation failed");
		ret->ignore = TRUE;
		wpabuf_free(resp);
		return NULL;
	}
	wpa_hexdump(MSG_MSGDUMP, "EAP-MD5: Response", rpos, CHAP_MD5_LEN);

return resp;
}

int eap_peer_md5_register(void)
{
	struct eap_method *eap;

eap = eap_peer_method_alloc(EAP_PEER_METHOD_INTERFACE_VERSION,
				    EAP_VENDOR_IETF, EAP_TYPE_MD5, "MD5");
	if (eap == NULL)
		return -1;

eap->init = eap_md5_init;
	eap->deinit = eap_md5_deinit;
	eap->process = eap_md5_process;

return eap_peer_method_register(eap);
}

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Editing: eap_md5.c

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