stubdom/vtpm: support multiple backends

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>

diff --git a/vtpm/vtpm.c b/vtpm/vtpm.c
index 10e74777b9bda7fd5d279fae0ef71baa97f6b78b..8f8095f5cc2ae60a12544cd143e54dcb2f41e5e3 100644 (file)
--- a/vtpm/vtpm.c
+++ b/vtpm/vtpm.c
@@ -141,8 +141,6 @@ int check_ordinal(tpmcmd_t* tpmcmd) {
 
 static void main_loop(void) {
    tpmcmd_t* tpmcmd = NULL;
-   domid_t domid;              /* Domid of frontend */
-   unsigned int handle;        /* handle of frontend */
    int res = -1;
 
    info("VTPM Initializing\n");
@@ -162,15 +160,7 @@ static void main_loop(void) {
       goto abort_postpcrs;
    }
 
-   /* Wait for the frontend domain to connect */
-   info("Waiting for frontend domain to connect..");
-   if(tpmback_wait_for_frontend_connect(&domid, &handle) == 0) {
-      info("VTPM attached to Frontend %u/%u", (unsigned int) domid, handle);
-   } else {
-      error("Unable to attach to a frontend");
-   }
-
-   tpmcmd = tpmback_req(domid, handle);
+   tpmcmd = tpmback_req_any();
    while(tpmcmd) {
       /* Handle the request */
       if(tpmcmd->req_len) {
@@ -194,7 +184,7 @@ static void main_loop(void) {
       tpmback_resp(tpmcmd);
 
       /* Wait for the next request */
-      tpmcmd = tpmback_req(domid, handle);
+      tpmcmd = tpmback_req_any();
 
    }