eap_tlv.h

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#ifndef EAP_TLV_H
#define EAP_TLV_H

/* EAP-TLV TLVs (draft-josefsson-ppext-eap-tls-eap-07.txt) */
#define EAP_TLV_RESULT_TLV 3 /* Acknowledged Result */
#define EAP_TLV_NAK_TLV 4
#define EAP_TLV_CRYPTO_BINDING_TLV 5
#define EAP_TLV_CONNECTION_BINDING_TLV 6
#define EAP_TLV_VENDOR_SPECIFIC_TLV 7
#define EAP_TLV_URI_TLV 8
#define EAP_TLV_EAP_PAYLOAD_TLV 9
#define EAP_TLV_INTERMEDIATE_RESULT_TLV 10
#define EAP_TLV_PAC_TLV 11 /* draft-cam-winget-eap-fast-01.txt */
#define EAP_TLV_CRYPTO_BINDING_TLV_ 12 /* draft-cam-winget-eap-fast-01.txt */

#define EAP_TLV_RESULT_SUCCESS 1
#define EAP_TLV_RESULT_FAILURE 2

#define EAP_TLV_TYPE_MANDATORY 0x8000

#ifdef _MSC_VER
#pragma pack(push, 1)
#endif /* _MSC_VER */

struct eap_tlv_hdr {
        u16 tlv_type;
        u16 length;
} STRUCT_PACKED;

struct eap_tlv_nak_tlv {
        u16 tlv_type;
        u16 length;
        u32 vendor_id;
        u16 nak_type;
} STRUCT_PACKED;

struct eap_tlv_result_tlv {
        u16 tlv_type;
        u16 length;
        u16 status;
} STRUCT_PACKED;

struct eap_tlv_intermediate_result_tlv {
        u16 tlv_type;
        u16 length;
        u16 status;
} STRUCT_PACKED;

struct eap_tlv_crypto_binding__tlv {
        u16 tlv_type;
        u16 length;
        u8 reserved;
        u8 version;
        u8 received_version;
        u8 subtype;
        u8 nonce[32];
        u8 compound_mac[20];
} STRUCT_PACKED;

struct eap_tlv_pac_ack_tlv {
        u16 tlv_type;
        u16 length;
        u16 pac_type;
        u16 pac_len;
        u16 result;
} STRUCT_PACKED;

#ifdef _MSC_VER
#pragma pack(pop)
#endif /* _MSC_VER */

#define EAP_TLV_CRYPTO_BINDING_SUBTYPE_REQUEST 0
#define EAP_TLV_CRYPTO_BINDING_SUBTYPE_RESPONSE 1


u8 * eap_tlv_build_nak(int id, u16 nak_type, size_t *resp_len);
u8 * eap_tlv_build_result(int id, u16 status, size_t *resp_len);
int eap_tlv_process(struct eap_sm *sm, struct eap_method_ret *ret,
                    const struct eap_hdr *hdr, u8 **resp, size_t *resp_len);

#endif /* EAP_TLV_H */

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