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-rw-r--r--extras/mini-os/include/tpmback.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/extras/mini-os/include/tpmback.h b/extras/mini-os/include/tpmback.h
index 3c11c347a3..a6cbbf1791 100644
--- a/extras/mini-os/include/tpmback.h
+++ b/extras/mini-os/include/tpmback.h
@@ -45,10 +45,10 @@ struct tpmcmd {
domid_t domid; /* Domid of the frontend */
uint8_t locality; /* Locality requested by the frontend */
unsigned int handle; /* Handle of the frontend */
- unsigned char uuid[16]; /* uuid of the tpm interface */
+ void *opaque; /* Opaque pointer taken from the tpmback instance */
- unsigned int req_len; /* Size of the command in buf - set by tpmback driver */
uint8_t* req; /* tpm command bits, allocated by driver, DON'T FREE IT */
+ unsigned int req_len; /* Size of the command in buf - set by tpmback driver */
unsigned int resp_len; /* Size of the outgoing command,
you set this before passing the cmd object to tpmback_resp */
uint8_t* resp; /* Buffer for response - YOU MUST ALLOCATE IT, YOU MUST ALSO FREE IT */
@@ -94,4 +94,9 @@ int tpmback_num_frontends(void);
* The return value is internally allocated, so don't free it */
unsigned char* tpmback_get_uuid(domid_t domid, unsigned int handle);
+/* Get and set the opaque pointer for a tpmback instance */
+void* tpmback_get_opaque(domid_t domid, unsigned int handle);
+/* Returns zero if successful, nonzero on failure (no such frontend) */
+int tpmback_set_opaque(domid_t domid, unsigned int handle, void* opaque);
+
#endif