From 29258a73c0d6b82caf23106b6c3d69cfc0e7f58b Mon Sep 17 00:00:00 2001
From: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Date: Mon, 17 Mar 2014 21:20:12 -0700
Subject: [PATCH] PORTMAP: Add support for v3 TADDR2UADDR

---
 include/nfsc/libnfs-raw.h    | 17 +++++++++++++++++
 lib/libnfs-win32.def         |  1 +
 portmap/libnfs-raw-portmap.h |  6 ++++++
 portmap/portmap.c            | 24 ++++++++++++++++++++++++
 portmap/portmap.x            |  3 +++
 5 files changed, 51 insertions(+)

diff --git a/include/nfsc/libnfs-raw.h b/include/nfsc/libnfs-raw.h
index f3113a6..ce419ff 100644
--- a/include/nfsc/libnfs-raw.h
+++ b/include/nfsc/libnfs-raw.h
@@ -352,6 +352,23 @@ EXTERN int rpc_pmap3_gettime_async(struct rpc_context *rpc, rpc_cb cb, void *pri
  */
 EXTERN int rpc_pmap3_uaddr2taddr_async(struct rpc_context *rpc, char *uaddr, rpc_cb cb, void *private_data);
 
+/*
+ * Call PORTMAPPER3/TADDR2UADDR.
+ * Function returns
+ *  0 : The connection was initiated. Once the connection establish finishes, the callback will be invoked.
+ * <0 : An error occured when trying to set up the connection. The callback will not be invoked.
+ *
+ * When the callback is invoked, status indicates the result:
+ * RPC_STATUS_SUCCESS : We got a successful response from the portmapper daemon.
+ *                      data is a struct pmap3_getaddr_result *.
+ * RPC_STATUS_ERROR   : An error occured when trying to contact the portmapper.
+ *                      data is the error string.
+ * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
+ *                     data is NULL.
+ */
+struct pmap3_netbuf;
+EXTERN int rpc_pmap3_taddr2uaddr_async(struct rpc_context *rpc, struct pmap3_netbuf *netbuf, rpc_cb cb, void *private_data);
+
 /*
  * MOUNT v3 FUNCTIONS
  */
diff --git a/lib/libnfs-win32.def b/lib/libnfs-win32.def
index 81ec68e..72d6be6 100644
--- a/lib/libnfs-win32.def
+++ b/lib/libnfs-win32.def
@@ -110,6 +110,7 @@ rpc_pmap3_dump_async
 rpc_pmap3_callit_async
 rpc_pmap3_gettime_async
 rpc_pmap3_uaddr2taddr_async
+rpc_pmap3_taddr2uaddr_async
 rpc_mount_null_async
 rpc_mount_mnt_async
 rpc_mount_dump_async
diff --git a/portmap/libnfs-raw-portmap.h b/portmap/libnfs-raw-portmap.h
index 1c5ec05..bc94871 100644
--- a/portmap/libnfs-raw-portmap.h
+++ b/portmap/libnfs-raw-portmap.h
@@ -180,6 +180,9 @@ extern  u_int * pmap3_gettime_3_svc(void *, struct svc_req *);
 #define PMAP3_UADDR2TADDR 7
 extern  pmap3_netbuf * pmap3_uaddr2taddr_3(char **, CLIENT *);
 extern  pmap3_netbuf * pmap3_uaddr2taddr_3_svc(char **, struct svc_req *);
+#define PMAP3_TADDR2UADDR 8
+extern  struct pmap3_getaddr_result * pmap3_taddr2uaddr_3(pmap3_netbuf *, CLIENT *);
+extern  struct pmap3_getaddr_result * pmap3_taddr2uaddr_3_svc(pmap3_netbuf *, struct svc_req *);
 extern int pmap_program_3_freeresult (SVCXPRT *, zdrproc_t, caddr_t);
 
 #else /* K&R C */
@@ -207,6 +210,9 @@ extern  u_int * pmap3_gettime_3_svc();
 #define PMAP3_UADDR2TADDR 7
 extern  pmap3_netbuf * pmap3_uaddr2taddr_3();
 extern  pmap3_netbuf * pmap3_uaddr2taddr_3_svc();
+#define PMAP3_TADDR2UADDR 8
+extern  struct pmap3_getaddr_result * pmap3_taddr2uaddr_3();
+extern  struct pmap3_getaddr_result * pmap3_taddr2uaddr_3_svc();
 extern int pmap_program_3_freeresult ();
 #endif /* K&R C */
 
diff --git a/portmap/portmap.c b/portmap/portmap.c
index e6aea82..2e9f653 100644
--- a/portmap/portmap.c
+++ b/portmap/portmap.c
@@ -376,3 +376,27 @@ int rpc_pmap3_uaddr2taddr_async(struct rpc_context *rpc, char *uaddr, rpc_cb cb,
 
 	return 0;
 }
+
+int rpc_pmap3_taddr2uaddr_async(struct rpc_context *rpc, struct pmap3_netbuf *nb, rpc_cb cb, void *private_data)
+{
+	struct rpc_pdu *pdu;
+
+	pdu = rpc_allocate_pdu(rpc, PMAP_PROGRAM, PMAP_V3, PMAP3_TADDR2UADDR, cb, private_data, (zdrproc_t)zdr_pmap3_getaddr_result, sizeof(pmap3_getaddr_result));
+	if (pdu == NULL) {
+		rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for PORTMAP3/TADDR2UADDR call");
+		return -1;
+	}
+
+	if (zdr_pmap3_netbuf(&pdu->zdr, nb) == 0) {
+		rpc_set_error(rpc, "ZDR error: Failed to encode data for PORTMAP3/TADDR2UADDR call");
+		rpc_free_pdu(rpc, pdu);
+		return -1;
+	}
+
+	if (rpc_queue_pdu(rpc, pdu) != 0) {
+		rpc_set_error(rpc, "Failed to queue PORTMAP3/TADDR2UADDR pdu: %s", rpc_get_error(rpc));
+		return -1;
+	}
+
+	return 0;
+}
diff --git a/portmap/portmap.x b/portmap/portmap.x
index 45c87af..1572505 100644
--- a/portmap/portmap.x
+++ b/portmap/portmap.x
@@ -114,6 +114,9 @@ program PMAP_PROGRAM {
 
 		pmap3_netbuf
 		PMAP3_UADDR2TADDR(string)     = 7;
+
+		struct pmap3_getaddr_result
+		PMAP3_TADDR2UADDR(pmap3_netbuf) = 8;
 	} = 3;
 } = 100000;
 
-- 
2.34.1