1 files changed, 312 insertions, 0 deletions
diff --git a/lib/libc/rpc/clnt_raw.c b/lib/libc/rpc/clnt_raw.c
new file mode 100644
index 0000000..9d34a3d
--- /dev/null
+++ b/lib/libc/rpc/clnt_raw.c
@@ -0,0 +1,312 @@
+/*	$NetBSD: clnt_raw.c,v 1.20 2000/12/10 04:12:03 christos Exp $	*/
+
+/*
+ * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
+ * unrestricted use provided that this legend is included on all tape
+ * media and as a part of the software program in whole or part.  Users
+ * may copy or modify Sun RPC without charge, but are not authorized
+ * to license or distribute it to anyone else except as part of a product or
+ * program developed by the user.
+ *
+ * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
+ * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+ *
+ * Sun RPC is provided with no support and without any obligation on the
+ * part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ *
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
+ * OR ANY PART THEREOF.
+ *
+ * In no event will Sun Microsystems, Inc. be liable for any lost revenue
+ * or profits or other special, indirect and consequential damages, even if
+ * Sun has been advised of the possibility of such damages.
+ *
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California  94043
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char *sccsid2 = "@(#)clnt_raw.c 1.22 87/08/11 Copyr 1984 Sun Micro";
+static char *sccsid = "@(#)clnt_raw.c	2.2 88/08/01 4.0 RPCSRC";
+#endif
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * clnt_raw.c
+ *
+ * Copyright (C) 1984, Sun Microsystems, Inc.
+ *
+ * Memory based rpc for simple testing and timing.
+ * Interface to create an rpc client and server in the same process.
+ * This lets us similate rpc and get round trip overhead, without
+ * any interference from the kernel.
+ */
+
+#include "namespace.h"
+#include "reentrant.h"
+#include <assert.h>
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <rpc/rpc.h>
+#include <rpc/raw.h>
+#include "un-namespace.h"
+#include "mt_misc.h"
+
+#define MCALL_MSG_SIZE 24
+
+/*
+ * This is the "network" we will be moving stuff over.
+ */
+static struct clntraw_private {
+	CLIENT	client_object;
+	XDR	xdr_stream;
+	char	*_raw_buf;
+	union {
+	    struct rpc_msg	mashl_rpcmsg;
+	    char 		mashl_callmsg[MCALL_MSG_SIZE];
+	} u;
+	u_int	mcnt;
+} *clntraw_private;
+
+static enum clnt_stat clnt_raw_call(CLIENT *, rpcproc_t, xdrproc_t, void *,
+	xdrproc_t, void *, struct timeval);
+static void clnt_raw_geterr(CLIENT *, struct rpc_err *);
+static bool_t clnt_raw_freeres(CLIENT *, xdrproc_t, void *);
+static void clnt_raw_abort(CLIENT *);
+static bool_t clnt_raw_control(CLIENT *, u_int, void *);
+static void clnt_raw_destroy(CLIENT *);
+static struct clnt_ops *clnt_raw_ops(void);
+
+/*
+ * Create a client handle for memory based rpc.
+ */
+CLIENT *
+clnt_raw_create(prog, vers)
+	rpcprog_t prog;
+	rpcvers_t vers;
+{
+	struct clntraw_private *clp = clntraw_private;
+	struct rpc_msg call_msg;
+	XDR *xdrs = &clp->xdr_stream;
+	CLIENT	*client = &clp->client_object;
+
+	mutex_lock(&clntraw_lock);
+	if (clp == NULL) {
+		clp = (struct clntraw_private *)calloc(1, sizeof (*clp));
+		if (clp == NULL) {
+			mutex_unlock(&clntraw_lock);
+			return NULL;
+		}
+		if (__rpc_rawcombuf == NULL)
+			__rpc_rawcombuf =
+			    (char *)calloc(UDPMSGSIZE, sizeof (char));
+		clp->_raw_buf = __rpc_rawcombuf;
+		clntraw_private = clp;
+	}
+	/*
+	 * pre-serialize the static part of the call msg and stash it away
+	 */
+	call_msg.rm_direction = CALL;
+	call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
+	/* XXX: prog and vers have been long historically :-( */
+	call_msg.rm_call.cb_prog = (u_int32_t)prog;
+	call_msg.rm_call.cb_vers = (u_int32_t)vers;
+	xdrmem_create(xdrs, clp->u.mashl_callmsg, MCALL_MSG_SIZE, XDR_ENCODE); 
+	if (! xdr_callhdr(xdrs, &call_msg))
+		warnx("clntraw_create - Fatal header serialization error.");
+	clp->mcnt = XDR_GETPOS(xdrs);
+	XDR_DESTROY(xdrs);
+
+	/*
+	 * Set xdrmem for client/server shared buffer
+	 */
+	xdrmem_create(xdrs, clp->_raw_buf, UDPMSGSIZE, XDR_FREE);
+
+	/*
+	 * create client handle
+	 */
+	client->cl_ops = clnt_raw_ops();
+	client->cl_auth = authnone_create();
+	mutex_unlock(&clntraw_lock);
+	return (client);
+}
+
+/* ARGSUSED */
+static enum clnt_stat 
+clnt_raw_call(h, proc, xargs, argsp, xresults, resultsp, timeout)
+	CLIENT *h;
+	rpcproc_t proc;
+	xdrproc_t xargs;
+	void *argsp;
+	xdrproc_t xresults;
+	void *resultsp;
+	struct timeval timeout;
+{
+	struct clntraw_private *clp = clntraw_private;
+	XDR *xdrs = &clp->xdr_stream;
+	struct rpc_msg msg;
+	enum clnt_stat status;
+	struct rpc_err error;
+
+	assert(h != NULL);
+
+	mutex_lock(&clntraw_lock);
+	if (clp == NULL) {
+		mutex_unlock(&clntraw_lock);
+		return (RPC_FAILED);
+	}
+	mutex_unlock(&clntraw_lock);
+
+call_again:
+	/*
+	 * send request
+	 */
+	xdrs->x_op = XDR_ENCODE;
+	XDR_SETPOS(xdrs, 0);
+	clp->u.mashl_rpcmsg.rm_xid ++ ;
+	if ((! XDR_PUTBYTES(xdrs, clp->u.mashl_callmsg, clp->mcnt)) ||
+	    (! XDR_PUTINT32(xdrs, &proc)) ||
+	    (! AUTH_MARSHALL(h->cl_auth, xdrs)) ||
+	    (! (*xargs)(xdrs, argsp))) {
+		return (RPC_CANTENCODEARGS);
+	}
+	(void)XDR_GETPOS(xdrs);  /* called just to cause overhead */
+
+	/*
+	 * We have to call server input routine here because this is
+	 * all going on in one process. Yuk.
+	 */
+	svc_getreq_common(FD_SETSIZE);
+
+	/*
+	 * get results
+	 */
+	xdrs->x_op = XDR_DECODE;
+	XDR_SETPOS(xdrs, 0);
+	msg.acpted_rply.ar_verf = _null_auth;
+	msg.acpted_rply.ar_results.where = resultsp;
+	msg.acpted_rply.ar_results.proc = xresults;
+	if (! xdr_replymsg(xdrs, &msg)) {
+		/*
+		 * It's possible for xdr_replymsg() to fail partway
+		 * through its attempt to decode the result from the
+		 * server. If this happens, it will leave the reply
+		 * structure partially populated with dynamically
+		 * allocated memory. (This can happen if someone uses
+		 * clntudp_bufcreate() to create a CLIENT handle and
+		 * specifies a receive buffer size that is too small.)
+		 * This memory must be free()ed to avoid a leak.
+		 */
+		int op = xdrs->x_op;
+		xdrs->x_op = XDR_FREE;
+		xdr_replymsg(xdrs, &msg);
+		xdrs->x_op = op;
+		return (RPC_CANTDECODERES);
+	}
+	_seterr_reply(&msg, &error);
+	status = error.re_status;
+
+	if (status == RPC_SUCCESS) {
+		if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) {
+			status = RPC_AUTHERROR;
+		}
+	}  /* end successful completion */
+	else {
+		if (AUTH_REFRESH(h->cl_auth, &msg))
+			goto call_again;
+	}  /* end of unsuccessful completion */
+
+	if (status == RPC_SUCCESS) {
+		if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf)) {
+			status = RPC_AUTHERROR;
+		}
+		if (msg.acpted_rply.ar_verf.oa_base != NULL) {
+			xdrs->x_op = XDR_FREE;
+			(void)xdr_opaque_auth(xdrs, &(msg.acpted_rply.ar_verf));
+		}
+	}
+
+	return (status);
+}
+
+/*ARGSUSED*/
+static void
+clnt_raw_geterr(cl, err)
+	CLIENT *cl;
+	struct rpc_err *err;
+{
+}
+
+
+/* ARGSUSED */
+static bool_t
+clnt_raw_freeres(cl, xdr_res, res_ptr)
+	CLIENT *cl;
+	xdrproc_t xdr_res;
+	void *res_ptr;
+{
+	struct clntraw_private *clp = clntraw_private;
+	XDR *xdrs = &clp->xdr_stream;
+	bool_t rval;
+
+	mutex_lock(&clntraw_lock);
+	if (clp == NULL) {
+		rval = (bool_t) RPC_FAILED;
+		mutex_unlock(&clntraw_lock);
+		return (rval);
+	}
+	mutex_unlock(&clntraw_lock);
+	xdrs->x_op = XDR_FREE;
+	return ((*xdr_res)(xdrs, res_ptr));
+}
+
+/*ARGSUSED*/
+static void
+clnt_raw_abort(cl)
+	CLIENT *cl;
+{
+}
+
+/*ARGSUSED*/
+static bool_t
+clnt_raw_control(cl, ui, str)
+	CLIENT *cl;
+	u_int ui;
+	void *str;
+{
+	return (FALSE);
+}
+
+/*ARGSUSED*/
+static void
+clnt_raw_destroy(cl)
+	CLIENT *cl;
+{
+}
+
+static struct clnt_ops *
+clnt_raw_ops()
+{
+	static struct clnt_ops ops;
+
+	/* VARIABLES PROTECTED BY ops_lock: ops */
+
+	mutex_lock(&ops_lock);
+	if (ops.cl_call == NULL) {
+		ops.cl_call = clnt_raw_call;
+		ops.cl_abort = clnt_raw_abort;
+		ops.cl_geterr = clnt_raw_geterr;
+		ops.cl_freeres = clnt_raw_freeres;
+		ops.cl_destroy = clnt_raw_destroy;
+		ops.cl_control = clnt_raw_control;
+	}
+	mutex_unlock(&ops_lock);
+	return (&ops);
+}