1 
2 /*
3  * Licensed Materials - Property of IBM
4  *
5  * trousers - An open source TCG Software Stack
6  *
7  * (C) Copyright International Business Machines Corp. 2007
8  *
9  */
10 
11 #ifndef _AUTHSESS_H_
12 #define _AUTHSESS_H_
13 
14 struct authsess {
15           TPM_AUTH *pAuth;
16           TPM_AUTH auth;
17 
18           /* XOR masks created before each use of an OSAP session */
19           TPM_ENCAUTH encAuthUse;
20           TPM_ENCAUTH encAuthMig;
21 
22           TSS_HCONTEXT tspContext;
23           TPM_COMMAND_CODE command;
24 
25           TSS_HOBJECT obj_parent;
26           TSS_HPOLICY hUsageParent;
27           UINT32 parentMode;
28           TPM_SECRET parentSecret;
29           TSS_CALLBACK cb_xor, cb_hmac, cb_sealx;
30 
31           TPM_ENTITY_TYPE entity_type;
32           UINT32 entityValueSize;
33           BYTE *entityValue;
34 
35           TSS_HOBJECT obj_child;
36           TSS_HPOLICY hUsageChild, hMigChild;
37           UINT32 uMode, mMode;
38 
39           /* Created during OSAP or DSAP protocol initiation */
40           TPM_NONCE nonceOddxSAP;
41           TPM_NONCE nonceEvenxSAP;
42           TPM_HMAC sharedSecret;
43 
44           //MUTEX_DECLARE(lock);
45           //struct authsess *next;
46 };
47 
48 TSS_RESULT authsess_oiap_get(TSS_HOBJECT, TPM_COMMAND_CODE, TPM_DIGEST *, TPM_AUTH *);
49 TSS_RESULT authsess_oiap_put(TPM_AUTH *, TPM_DIGEST *);
50 
51 TSS_RESULT authsess_xsap_init(TSS_HCONTEXT, TSS_HOBJECT, TSS_HOBJECT, TSS_BOOL, TPM_COMMAND_CODE, TPM_ENTITY_TYPE, struct authsess **);
52 TSS_RESULT authsess_xsap_hmac(struct authsess *, TPM_DIGEST *);
53 TSS_RESULT authsess_xsap_verify(struct authsess *, TPM_DIGEST *);
54 void       authsess_free(struct authsess *);
55 
56 #define TSS_AUTH_POLICY_REQUIRED        TRUE
57 #define TSS_AUTH_POLICY_NOT_REQUIRED    FALSE
58 
59 #endif
60