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Diffstat (limited to 'src/include/auth_mgr.h')
| -rw-r--r-- | src/include/auth_mgr.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/include/auth_mgr.h b/src/include/auth_mgr.h new file mode 100644 index 0000000..14ced98 --- /dev/null +++ b/src/include/auth_mgr.h @@ -0,0 +1,49 @@ + +/* + * Licensed Materials - Property of IBM + * + * trousers - An open source TCG Software Stack + * + * (C) Copyright International Business Machines Corp. 2004 + * + */ + +#ifndef _AUTH_MGR_H_ +#define _AUTH_MGR_H_ + +struct auth_map +{ + TSS_BOOL full; + TPM_AUTHHANDLE tpm_handle; + TCS_CONTEXT_HANDLE tcs_ctx; + BYTE *swap; /* These 'swap' variables manage blobs received from TPM_SaveAuthContext */ + UINT32 swap_size; +}; + +/* + * it appears that there's no way to query a v1.1 TPM for the + * max number of simultaneous auth sessions. We'll make the + * default relatively large and let the TPM return + * TCPA_RESOURCES to tell us when we cross the line. + */ +#define TSS_DEFAULT_AUTH_TABLE_SIZE 16 +#define TSS_DEFAULT_OVERFLOW_AUTHS 16 + +struct _auth_mgr +{ + short max_auth_sessions; + short open_auth_sessions; + UINT32 sleeping_threads; + COND_VAR **overflow; /* queue of TCS contexts waiting for an auth session to become + * available */ + unsigned int of_head, of_tail; /* head and tail of the overflow queue */ + struct auth_map *auth_mapper; /* table of currently tracked auth sessions */ + UINT32 auth_mapper_size, overflow_size; +} auth_mgr; + +MUTEX_DECLARE_INIT(auth_mgr_lock); + +TSS_RESULT TPM_SaveAuthContext(TPM_AUTHHANDLE, UINT32 *, BYTE **); +TSS_RESULT TPM_LoadAuthContext(UINT32, BYTE *, TPM_AUTHHANDLE *); + +#endif |