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Add extra validation of EAP header length field

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These validation steps are already done in the EAP parsing code and in
the EAP methods, but the additional check is defensive programming and
can make the validation of received EAP messages more easier to
understand.

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2012-08-07 23:03:25 +03:00
parent bf0d9ae40f
commit f54eb34995
4 changed files with 66 additions and 17 deletions
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3
src/eap_common/eap_common.h
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@ -1,6 +1,6 @@
/*
* EAP common peer/server definitions
* Copyright (c) 2004-2007, Jouni Malinen <j@w1.fi>
* 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.
@ -11,6 +11,7 @@
#include "wpabuf.h"
int eap_hdr_len_valid(const struct wpabuf *msg, size_t min_payload);
const u8 * eap_hdr_validate(int vendor, EapType eap_type,
const struct wpabuf *msg, size_t *plen);
struct wpabuf * eap_msg_alloc(int vendor, EapType type, size_t payload_len,