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Current Path: /usr/src/contrib/wpa/src/eap_common

usr / src / contrib / wpa / src / eap_common /

📁 ..
📄 chap.c(602 B)
📄 chap.h(388 B)
📄 eap_common.c(7.31 KB)
📄 eap_common.h(905 B)
📄 eap_defs.h(3.43 KB)
📄 eap_eke_common.c(16.75 KB)
📄 eap_eke_common.h(3.47 KB)
📄 eap_fast_common.c(7.19 KB)
📄 eap_fast_common.h(2.87 KB)
📄 eap_gpsk_common.c(14.28 KB)
📄 eap_gpsk_common.h(2 KB)
📄 eap_ikev2_common.c(2.78 KB)
📄 eap_ikev2_common.h(832 B)
📄 eap_pax_common.c(4.4 KB)
📄 eap_pax_common.h(2.2 KB)
📄 eap_peap_common.c(1.74 KB)
📄 eap_peap_common.h(425 B)
📄 eap_psk_common.c(1.52 KB)
📄 eap_psk_common.h(1.72 KB)
📄 eap_pwd_common.c(12.25 KB)
📄 eap_pwd_common.h(2.62 KB)
📄 eap_sake_common.c(10.64 KB)
📄 eap_sake_common.h(2.41 KB)
📄 eap_sim_common.c(31.96 KB)
📄 eap_sim_common.h(7.62 KB)
📄 eap_teap_common.c(20.43 KB)
📄 eap_teap_common.h(5.67 KB)
📄 eap_tlv_common.h(2.57 KB)
📄 eap_ttls.h(1.58 KB)
📄 eap_wsc_common.c(784 B)
📄 eap_wsc_common.h(644 B)
📄 ikev2_common.c(17.17 KB)
📄 ikev2_common.h(8.11 KB)

Editing: eap_ikev2_common.c

/*
 * EAP-IKEv2 common routines
 * Copyright (c) 2007, 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_defs.h"
#include "eap_common.h"
#include "ikev2_common.h"
#include "eap_ikev2_common.h"

int eap_ikev2_derive_keymat(int prf, struct ikev2_keys *keys,
			    const u8 *i_nonce, size_t i_nonce_len,
			    const u8 *r_nonce, size_t r_nonce_len,
			    u8 *keymat)
{
	u8 *nonces;
	size_t nlen;

/* KEYMAT = prf+(SK_d, Ni | Nr) */
	if (keys->SK_d == NULL || i_nonce == NULL || r_nonce == NULL)
		return -1;

nlen = i_nonce_len + r_nonce_len;
	nonces = os_malloc(nlen);
	if (nonces == NULL)
		return -1;
	os_memcpy(nonces, i_nonce, i_nonce_len);
	os_memcpy(nonces + i_nonce_len, r_nonce, r_nonce_len);

if (ikev2_prf_plus(prf, keys->SK_d, keys->SK_d_len, nonces, nlen,
			   keymat, EAP_MSK_LEN + EAP_EMSK_LEN)) {
		os_free(nonces);
		return -1;
	}
	os_free(nonces);

wpa_hexdump_key(MSG_DEBUG, "EAP-IKEV2: KEYMAT",
			keymat, EAP_MSK_LEN + EAP_EMSK_LEN);

return 0;
}

struct wpabuf * eap_ikev2_build_frag_ack(u8 id, u8 code)
{
	struct wpabuf *msg;

msg = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_IKEV2, 0, code, id);
	if (msg == NULL) {
		wpa_printf(MSG_ERROR, "EAP-IKEV2: Failed to allocate memory "
			   "for fragment ack");
		return NULL;
	}

wpa_printf(MSG_DEBUG, "EAP-IKEV2: Send fragment ack");

return msg;
}

int eap_ikev2_validate_icv(int integ_alg, struct ikev2_keys *keys,
			   int initiator, const struct wpabuf *msg,
			   const u8 *pos, const u8 *end)
{
	const struct ikev2_integ_alg *integ;
	size_t icv_len;
	u8 icv[IKEV2_MAX_HASH_LEN];
	const u8 *SK_a = initiator ? keys->SK_ai : keys->SK_ar;

integ = ikev2_get_integ(integ_alg);
	if (integ == NULL) {
		wpa_printf(MSG_DEBUG, "EAP-IKEV2: Unknown INTEG "
			   "transform / cannot validate ICV");
		return -1;
	}
	icv_len = integ->hash_len;

if (end - pos < (int) icv_len) {
		wpa_printf(MSG_DEBUG, "EAP-IKEV2: Not enough room in the "
			   "message for Integrity Checksum Data");
		return -1;
	}

if (SK_a == NULL) {
		wpa_printf(MSG_DEBUG, "EAP-IKEV2: No SK_a for ICV validation");
		return -1;
	}

if (ikev2_integ_hash(integ_alg, SK_a, keys->SK_integ_len,
			     wpabuf_head(msg),
			     wpabuf_len(msg) - icv_len, icv) < 0) {
		wpa_printf(MSG_INFO, "EAP-IKEV2: Could not calculate ICV");
		return -1;
	}

if (os_memcmp_const(icv, end - icv_len, icv_len) != 0) {
		wpa_printf(MSG_INFO, "EAP-IKEV2: Invalid ICV");
		wpa_hexdump(MSG_DEBUG, "EAP-IKEV2: Calculated ICV",
			    icv, icv_len);
		wpa_hexdump(MSG_DEBUG, "EAP-IKEV2: Received ICV",
			    end - icv_len, icv_len);
		return -1;
	}

wpa_printf(MSG_DEBUG, "EAP-IKEV2: Valid Integrity Checksum Data in "
		   "the received message");

return icv_len;
}

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Editing: eap_ikev2_common.c

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