2dbc959699
Use size_t instead of int for storing and comparing the TLV length against the remaining buffer length to make this easier for static analyzers to understand. Signed-off-by: Jouni Malinen <j@w1.fi>
107 lines
2.9 KiB
C
107 lines
2.9 KiB
C
/*
|
|
* EAP-FAST definitions (RFC 4851)
|
|
* Copyright (c) 2004-2008, Jouni Malinen <j@w1.fi>
|
|
*
|
|
* This software may be distributed under the terms of the BSD license.
|
|
* See README for more details.
|
|
*/
|
|
|
|
#ifndef EAP_FAST_H
|
|
#define EAP_FAST_H
|
|
|
|
#define EAP_FAST_VERSION 1
|
|
#define EAP_FAST_KEY_LEN 64
|
|
#define EAP_FAST_SIMCK_LEN 40
|
|
#define EAP_FAST_SKS_LEN 40
|
|
#define EAP_FAST_CMK_LEN 20
|
|
|
|
#define TLS_EXT_PAC_OPAQUE 35
|
|
|
|
/*
|
|
* RFC 5422: Section 4.2.1 - Formats for PAC TLV Attributes / Type Field
|
|
* Note: bit 0x8000 (Mandatory) and bit 0x4000 (Reserved) are also defined
|
|
* in the general PAC TLV format (Section 4.2).
|
|
*/
|
|
#define PAC_TYPE_PAC_KEY 1
|
|
#define PAC_TYPE_PAC_OPAQUE 2
|
|
#define PAC_TYPE_CRED_LIFETIME 3
|
|
#define PAC_TYPE_A_ID 4
|
|
#define PAC_TYPE_I_ID 5
|
|
/*
|
|
* 6 was previous assigned for SERVER_PROTECTED_DATA, but
|
|
* draft-cam-winget-eap-fast-provisioning-02.txt changed this to Reserved.
|
|
*/
|
|
#define PAC_TYPE_A_ID_INFO 7
|
|
#define PAC_TYPE_PAC_ACKNOWLEDGEMENT 8
|
|
#define PAC_TYPE_PAC_INFO 9
|
|
#define PAC_TYPE_PAC_TYPE 10
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma pack(push, 1)
|
|
#endif /* _MSC_VER */
|
|
|
|
struct pac_tlv_hdr {
|
|
be16 type;
|
|
be16 len;
|
|
} STRUCT_PACKED;
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma pack(pop)
|
|
#endif /* _MSC_VER */
|
|
|
|
|
|
#define EAP_FAST_PAC_KEY_LEN 32
|
|
|
|
/* RFC 5422: 4.2.6 PAC-Type TLV */
|
|
#define PAC_TYPE_TUNNEL_PAC 1
|
|
/* Application Specific Short Lived PACs (only in volatile storage) */
|
|
/* User Authorization PAC */
|
|
#define PAC_TYPE_USER_AUTHORIZATION 3
|
|
/* Application Specific Long Lived PACs */
|
|
/* Machine Authentication PAC */
|
|
#define PAC_TYPE_MACHINE_AUTHENTICATION 2
|
|
|
|
|
|
/*
|
|
* RFC 5422:
|
|
* Section 3.3 - Key Derivations Used in the EAP-FAST Provisioning Exchange
|
|
*/
|
|
struct eap_fast_key_block_provisioning {
|
|
/* Extra key material after TLS key_block */
|
|
u8 session_key_seed[EAP_FAST_SKS_LEN];
|
|
u8 server_challenge[16]; /* MSCHAPv2 ServerChallenge */
|
|
u8 client_challenge[16]; /* MSCHAPv2 ClientChallenge */
|
|
};
|
|
|
|
|
|
struct wpabuf;
|
|
struct tls_connection;
|
|
|
|
struct eap_fast_tlv_parse {
|
|
u8 *eap_payload_tlv;
|
|
size_t eap_payload_tlv_len;
|
|
struct eap_tlv_crypto_binding_tlv *crypto_binding;
|
|
size_t crypto_binding_len;
|
|
int iresult;
|
|
int result;
|
|
int request_action;
|
|
u8 *pac;
|
|
size_t pac_len;
|
|
};
|
|
|
|
void eap_fast_put_tlv_hdr(struct wpabuf *buf, u16 type, u16 len);
|
|
void eap_fast_put_tlv(struct wpabuf *buf, u16 type, const void *data,
|
|
u16 len);
|
|
void eap_fast_put_tlv_buf(struct wpabuf *buf, u16 type,
|
|
const struct wpabuf *data);
|
|
struct wpabuf * eap_fast_tlv_eap_payload(struct wpabuf *buf);
|
|
void eap_fast_derive_master_secret(const u8 *pac_key, const u8 *server_random,
|
|
const u8 *client_random, u8 *master_secret);
|
|
u8 * eap_fast_derive_key(void *ssl_ctx, struct tls_connection *conn,
|
|
const char *label, size_t len);
|
|
void eap_fast_derive_eap_msk(const u8 *simck, u8 *msk);
|
|
void eap_fast_derive_eap_emsk(const u8 *simck, u8 *emsk);
|
|
int eap_fast_parse_tlv(struct eap_fast_tlv_parse *tlv,
|
|
int tlv_type, u8 *pos, size_t len);
|
|
|
|
#endif /* EAP_FAST_H */
|