Bring in a hybrid of SunSoft's transport-independent RPC (TI-RPC) and

associated changes that had to happen to make this possible as well as
bugs fixed along the way.

  Bring in required TLI library routines to support this.

  Since we don't support TLI we've essentially copied what NetBSD
  has done, adding a thin layer to emulate direct the TLI calls
  into BSD socket calls.

  This is mostly from Sun's tirpc release that was made in 1994,
  however some fixes were backported from the 1999 release (supposedly
  only made available after this porting effort was underway).

  The submitter has agreed to continue on and bring us up to the
  1999 release.

  Several key features are introduced with this update:
    Client calls are thread safe. (1999 code has server side thread
    safe)
    Updated, a more modern interface.

  Many userland updates were done to bring the code up to par with
  the recent RPC API.

  There is an update to the pthreads library, a function
  pthread_main_np() was added to emulate a function of Sun's threads
  library.

  While we're at it, bring in NetBSD's lockd, it's been far too
  long of a wait.

  New rpcbind(8) replaces portmap(8) (supporting communication over
  an authenticated Unix-domain socket, and by default only allowing
  set and unset requests over that channel). It's much more secure
  than the old portmapper.

  Umount(8), mountd(8), mount_nfs(8), nfsd(8) have also been upgraded
  to support TI-RPC and to support IPV6.

  Umount(8) is also fixed to unmount pathnames longer than 80 chars,
  which are currently truncated by the Kernel statfs structure.

Submitted by: Martin Blapp <mb@imp.ch>
Manpage review: ru
Secure RPC implemented by: wpaul

1 files changed, 603 insertions, 0 deletions

diff --git a/lib/libc/rpc/svc_dg.c b/lib/libc/rpc/svc_dg.c
new file mode 100644
index 0000000..03ace97
--- /dev/null
+++ b/lib/libc/rpc/svc_dg.c
@@ -0,0 +1,603 @@
+/*	$NetBSD: svc_dg.c,v 1.4 2000/07/06 03:10:35 christos Exp $	*/
+/*	$FreeBSD$ */
+
+/*
+ * 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
+ */
+
+/*
+ * Copyright (c) 1986-1991 by Sun Microsystems Inc.
+ */
+
+/* #ident	"@(#)svc_dg.c	1.17	94/04/24 SMI" */
+
+
+/*
+ * svc_dg.c, Server side for connectionless RPC.
+ *
+ * Does some caching in the hopes of achieving execute-at-most-once semantics.
+ */
+
+#include "reentrant.h"
+#include "namespace.h"
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <rpc/rpc.h>
+#include <rpc/svc_dg.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef RPC_CACHE_DEBUG
+#include <netconfig.h>
+#include <netdir.h>
+#endif
+#include <err.h>
+#include "un-namespace.h"
+
+#include "rpc_com.h"
+
+#define	su_data(xprt)	((struct svc_dg_data *)(xprt->xp_p2))
+#define	rpc_buffer(xprt) ((xprt)->xp_p1)
+
+#ifndef MAX
+#define	MAX(a, b)	(((a) > (b)) ? (a) : (b))
+#endif
+
+static void svc_dg_ops __P((SVCXPRT *));
+static enum xprt_stat svc_dg_stat __P((SVCXPRT *));
+static bool_t svc_dg_recv __P((SVCXPRT *, struct rpc_msg *));
+static bool_t svc_dg_reply __P((SVCXPRT *, struct rpc_msg *));
+static bool_t svc_dg_getargs __P((SVCXPRT *, xdrproc_t, caddr_t));
+static bool_t svc_dg_freeargs __P((SVCXPRT *, xdrproc_t, caddr_t));
+static void svc_dg_destroy __P((SVCXPRT *));
+static bool_t svc_dg_control __P((SVCXPRT *, const u_int, void *));
+static int cache_get __P((SVCXPRT *, struct rpc_msg *, char **, size_t *));
+static void cache_set __P((SVCXPRT *, size_t));
+int svc_dg_enablecache __P((SVCXPRT *, u_int));
+
+/*
+ * Usage:
+ *	xprt = svc_dg_create(sock, sendsize, recvsize);
+ * Does other connectionless specific initializations.
+ * Once *xprt is initialized, it is registered.
+ * see (svc.h, xprt_register). If recvsize or sendsize are 0 suitable
+ * system defaults are chosen.
+ * The routines returns NULL if a problem occurred.
+ */
+static const char svc_dg_str[] = "svc_dg_create: %s";
+static const char svc_dg_err1[] = "could not get transport information";
+static const char svc_dg_err2[] = " transport does not support data transfer";
+static const char __no_mem_str[] = "out of memory";
+
+SVCXPRT *
+svc_dg_create(fd, sendsize, recvsize)
+	int fd;
+	u_int sendsize;
+	u_int recvsize;
+{
+	SVCXPRT *xprt;
+	struct svc_dg_data *su = NULL;
+	struct __rpc_sockinfo si;
+	struct sockaddr_storage ss;
+	socklen_t slen;
+
+	if (!__rpc_fd2sockinfo(fd, &si)) {
+		warnx(svc_dg_str, svc_dg_err1);
+		return (NULL);
+	}
+	/*
+	 * Find the receive and the send size
+	 */
+	sendsize = __rpc_get_t_size(si.si_af, si.si_proto, (int)sendsize);
+	recvsize = __rpc_get_t_size(si.si_af, si.si_proto, (int)recvsize);
+	if ((sendsize == 0) || (recvsize == 0)) {
+		warnx(svc_dg_str, svc_dg_err2);
+		return (NULL);
+	}
+
+	xprt = mem_alloc(sizeof (SVCXPRT));
+	if (xprt == NULL)
+		goto freedata;
+	memset(xprt, 0, sizeof (SVCXPRT));
+
+	su = mem_alloc(sizeof (*su));
+	if (su == NULL)
+		goto freedata;
+	su->su_iosz = ((MAX(sendsize, recvsize) + 3) / 4) * 4;
+	if ((rpc_buffer(xprt) = mem_alloc(su->su_iosz)) == NULL)
+		goto freedata;
+	xdrmem_create(&(su->su_xdrs), rpc_buffer(xprt), su->su_iosz,
+		XDR_DECODE);
+	su->su_cache = NULL;
+	xprt->xp_fd = fd;
+	xprt->xp_p2 = (caddr_t)(void *)su;
+	xprt->xp_verf.oa_base = su->su_verfbody;
+	svc_dg_ops(xprt);
+	xprt->xp_rtaddr.maxlen = sizeof (struct sockaddr_storage);
+
+	slen = sizeof ss;
+	if (_getsockname(fd, (struct sockaddr *)(void *)&ss, &slen) < 0)
+		goto freedata;
+	xprt->xp_ltaddr.buf = mem_alloc(sizeof (struct sockaddr_storage));
+	xprt->xp_ltaddr.maxlen = sizeof (struct sockaddr_storage);
+	xprt->xp_ltaddr.len = slen;
+	memcpy(xprt->xp_ltaddr.buf, &ss, slen);
+
+	xprt_register(xprt);
+	return (xprt);
+freedata:
+	(void) warnx(svc_dg_str, __no_mem_str);
+	if (xprt) {
+		if (su)
+			(void) mem_free(su, sizeof (*su));
+		(void) mem_free(xprt, sizeof (SVCXPRT));
+	}
+	return (NULL);
+}
+
+/*ARGSUSED*/
+static enum xprt_stat
+svc_dg_stat(xprt)
+	SVCXPRT *xprt;
+{
+	return (XPRT_IDLE);
+}
+
+static bool_t
+svc_dg_recv(xprt, msg)
+	SVCXPRT *xprt;
+	struct rpc_msg *msg;
+{
+	struct svc_dg_data *su = su_data(xprt);
+	XDR *xdrs = &(su->su_xdrs);
+	char *reply;
+	struct sockaddr_storage ss;
+	socklen_t alen;
+	size_t replylen;
+	int rlen;
+
+again:
+	alen = sizeof (struct sockaddr_storage);
+	rlen = _recvfrom(xprt->xp_fd, rpc_buffer(xprt), su->su_iosz, 0,
+	    (struct sockaddr *)(void *)&ss, &alen);
+	if (rlen == -1 && errno == EINTR)
+		goto again;
+	if (rlen == -1 || (rlen < 4 * sizeof (u_int32_t)))
+		return (FALSE);
+	if (xprt->xp_rtaddr.len < alen) {
+		if (xprt->xp_rtaddr.len != 0)
+			mem_free(xprt->xp_rtaddr.buf, xprt->xp_rtaddr.len);
+		xprt->xp_rtaddr.buf = mem_alloc(alen);
+		xprt->xp_rtaddr.len = alen;
+	}
+	memcpy(xprt->xp_rtaddr.buf, &ss, alen);
+#ifdef PORTMAP
+	if (ss.ss_family == AF_INET) {
+		xprt->xp_raddr = *(struct sockaddr_in *)xprt->xp_rtaddr.buf;
+		xprt->xp_addrlen = sizeof (struct sockaddr_in);
+	}
+#endif				/* PORTMAP */
+	xdrs->x_op = XDR_DECODE;
+	XDR_SETPOS(xdrs, 0);
+	if (! xdr_callmsg(xdrs, msg)) {
+		return (FALSE);
+	}
+	su->su_xid = msg->rm_xid;
+	if (su->su_cache != NULL) {
+		if (cache_get(xprt, msg, &reply, &replylen)) {
+			(void)_sendto(xprt->xp_fd, reply, replylen, 0,
+			    (struct sockaddr *)(void *)&ss, alen);
+			return (FALSE);
+		}
+	}
+	return (TRUE);
+}
+
+static bool_t
+svc_dg_reply(xprt, msg)
+	SVCXPRT *xprt;
+	struct rpc_msg *msg;
+{
+	struct svc_dg_data *su = su_data(xprt);
+	XDR *xdrs = &(su->su_xdrs);
+	bool_t stat = FALSE;
+	size_t slen;
+
+	xdrs->x_op = XDR_ENCODE;
+	XDR_SETPOS(xdrs, 0);
+	msg->rm_xid = su->su_xid;
+	if (xdr_replymsg(xdrs, msg)) {
+		slen = XDR_GETPOS(xdrs);
+		if (_sendto(xprt->xp_fd, rpc_buffer(xprt), slen, 0,
+		    (struct sockaddr *)xprt->xp_rtaddr.buf,
+		    (socklen_t)xprt->xp_rtaddr.len) == slen) {
+			stat = TRUE;
+			if (su->su_cache)
+				cache_set(xprt, slen);
+		}
+	}
+	return (stat);
+}
+
+static bool_t
+svc_dg_getargs(xprt, xdr_args, args_ptr)
+	SVCXPRT *xprt;
+	xdrproc_t xdr_args;
+	caddr_t args_ptr;
+{
+	return (*xdr_args)(&(su_data(xprt)->su_xdrs), args_ptr);
+}
+
+static bool_t
+svc_dg_freeargs(xprt, xdr_args, args_ptr)
+	SVCXPRT *xprt;
+	xdrproc_t xdr_args;
+	caddr_t args_ptr;
+{
+	XDR *xdrs = &(su_data(xprt)->su_xdrs);
+
+	xdrs->x_op = XDR_FREE;
+	return (*xdr_args)(xdrs, args_ptr);
+}
+
+static void
+svc_dg_destroy(xprt)
+	SVCXPRT *xprt;
+{
+	struct svc_dg_data *su = su_data(xprt);
+
+	xprt_unregister(xprt);
+	if (xprt->xp_fd != -1)
+		(void)_close(xprt->xp_fd);
+	XDR_DESTROY(&(su->su_xdrs));
+	(void) mem_free(rpc_buffer(xprt), su->su_iosz);
+	(void) mem_free(su, sizeof (*su));
+	if (xprt->xp_rtaddr.buf)
+		(void) mem_free(xprt->xp_rtaddr.buf, xprt->xp_rtaddr.maxlen);
+	if (xprt->xp_ltaddr.buf)
+		(void) mem_free(xprt->xp_ltaddr.buf, xprt->xp_ltaddr.maxlen);
+	if (xprt->xp_tp)
+		(void) free(xprt->xp_tp);
+	(void) mem_free(xprt, sizeof (SVCXPRT));
+}
+
+static bool_t
+/*ARGSUSED*/
+svc_dg_control(xprt, rq, in)
+	SVCXPRT *xprt;
+	const u_int	rq;
+	void		*in;
+{
+	return (FALSE);
+}
+
+static void
+svc_dg_ops(xprt)
+	SVCXPRT *xprt;
+{
+	static struct xp_ops ops;
+	static struct xp_ops2 ops2;
+	extern mutex_t ops_lock;
+
+/* VARIABLES PROTECTED BY ops_lock: ops */
+
+	mutex_lock(&ops_lock);
+	if (ops.xp_recv == NULL) {
+		ops.xp_recv = svc_dg_recv;
+		ops.xp_stat = svc_dg_stat;
+		ops.xp_getargs = svc_dg_getargs;
+		ops.xp_reply = svc_dg_reply;
+		ops.xp_freeargs = svc_dg_freeargs;
+		ops.xp_destroy = svc_dg_destroy;
+		ops2.xp_control = svc_dg_control;
+	}
+	xprt->xp_ops = &ops;
+	xprt->xp_ops2 = &ops2;
+	mutex_unlock(&ops_lock);
+}
+
+/*  The CACHING COMPONENT */
+
+/*
+ * Could have been a separate file, but some part of it depends upon the
+ * private structure of the client handle.
+ *
+ * Fifo cache for cl server
+ * Copies pointers to reply buffers into fifo cache
+ * Buffers are sent again if retransmissions are detected.
+ */
+
+#define	SPARSENESS 4	/* 75% sparse */
+
+#define	ALLOC(type, size)	\
+	(type *) mem_alloc((sizeof (type) * (size)))
+
+#define	MEMZERO(addr, type, size)	 \
+	(void) memset((void *) (addr), 0, sizeof (type) * (int) (size))
+
+#define	FREE(addr, type, size)	\
+	mem_free((addr), (sizeof (type) * (size)))
+
+/*
+ * An entry in the cache
+ */
+typedef struct cache_node *cache_ptr;
+struct cache_node {
+	/*
+	 * Index into cache is xid, proc, vers, prog and address
+	 */
+	u_int32_t cache_xid;
+	rpcproc_t cache_proc;
+	rpcvers_t cache_vers;
+	rpcprog_t cache_prog;
+	struct netbuf cache_addr;
+	/*
+	 * The cached reply and length
+	 */
+	char *cache_reply;
+	size_t cache_replylen;
+	/*
+	 * Next node on the list, if there is a collision
+	 */
+	cache_ptr cache_next;
+};
+
+/*
+ * The entire cache
+ */
+struct cl_cache {
+	u_int uc_size;		/* size of cache */
+	cache_ptr *uc_entries;	/* hash table of entries in cache */
+	cache_ptr *uc_fifo;	/* fifo list of entries in cache */
+	u_int uc_nextvictim;	/* points to next victim in fifo list */
+	rpcprog_t uc_prog;	/* saved program number */
+	rpcvers_t uc_vers;	/* saved version number */
+	rpcproc_t uc_proc;	/* saved procedure number */
+};
+
+
+/*
+ * the hashing function
+ */
+#define	CACHE_LOC(transp, xid)	\
+	(xid % (SPARSENESS * ((struct cl_cache *) \
+		su_data(transp)->su_cache)->uc_size))
+
+extern mutex_t	dupreq_lock;
+
+/*
+ * Enable use of the cache. Returns 1 on success, 0 on failure.
+ * Note: there is no disable.
+ */
+static const char cache_enable_str[] = "svc_enablecache: %s %s";
+static const char alloc_err[] = "could not allocate cache ";
+static const char enable_err[] = "cache already enabled";
+
+int
+svc_dg_enablecache(transp, size)
+	SVCXPRT *transp;
+	u_int size;
+{
+	struct svc_dg_data *su = su_data(transp);
+	struct cl_cache *uc;
+
+	mutex_lock(&dupreq_lock);
+	if (su->su_cache != NULL) {
+		(void) warnx(cache_enable_str, enable_err, " ");
+		mutex_unlock(&dupreq_lock);
+		return (0);
+	}
+	uc = ALLOC(struct cl_cache, 1);
+	if (uc == NULL) {
+		warnx(cache_enable_str, alloc_err, " ");
+		mutex_unlock(&dupreq_lock);
+		return (0);
+	}
+	uc->uc_size = size;
+	uc->uc_nextvictim = 0;
+	uc->uc_entries = ALLOC(cache_ptr, size * SPARSENESS);
+	if (uc->uc_entries == NULL) {
+		warnx(cache_enable_str, alloc_err, "data");
+		FREE(uc, struct cl_cache, 1);
+		mutex_unlock(&dupreq_lock);
+		return (0);
+	}
+	MEMZERO(uc->uc_entries, cache_ptr, size * SPARSENESS);
+	uc->uc_fifo = ALLOC(cache_ptr, size);
+	if (uc->uc_fifo == NULL) {
+		warnx(cache_enable_str, alloc_err, "fifo");
+		FREE(uc->uc_entries, cache_ptr, size * SPARSENESS);
+		FREE(uc, struct cl_cache, 1);
+		mutex_unlock(&dupreq_lock);
+		return (0);
+	}
+	MEMZERO(uc->uc_fifo, cache_ptr, size);
+	su->su_cache = (char *)(void *)uc;
+	mutex_unlock(&dupreq_lock);
+	return (1);
+}
+
+/*
+ * Set an entry in the cache.  It assumes that the uc entry is set from
+ * the earlier call to cache_get() for the same procedure.  This will always
+ * happen because cache_get() is calle by svc_dg_recv and cache_set() is called
+ * by svc_dg_reply().  All this hoopla because the right RPC parameters are
+ * not available at svc_dg_reply time.
+ */
+
+static const char cache_set_str[] = "cache_set: %s";
+static const char cache_set_err1[] = "victim not found";
+static const char cache_set_err2[] = "victim alloc failed";
+static const char cache_set_err3[] = "could not allocate new rpc buffer";
+
+static void
+cache_set(xprt, replylen)
+	SVCXPRT *xprt;
+	size_t replylen;
+{
+	cache_ptr victim;
+	cache_ptr *vicp;
+	struct svc_dg_data *su = su_data(xprt);
+	struct cl_cache *uc = (struct cl_cache *) su->su_cache;
+	u_int loc;
+	char *newbuf;
+#ifdef RPC_CACHE_DEBUG
+	struct netconfig *nconf;
+	char *uaddr;
+#endif
+
+	mutex_lock(&dupreq_lock);
+	/*
+	 * Find space for the new entry, either by
+	 * reusing an old entry, or by mallocing a new one
+	 */
+	victim = uc->uc_fifo[uc->uc_nextvictim];
+	if (victim != NULL) {
+		loc = CACHE_LOC(xprt, victim->cache_xid);
+		for (vicp = &uc->uc_entries[loc];
+			*vicp != NULL && *vicp != victim;
+			vicp = &(*vicp)->cache_next)
+			;
+		if (*vicp == NULL) {
+			warnx(cache_set_str, cache_set_err1);
+			mutex_unlock(&dupreq_lock);
+			return;
+		}
+		*vicp = victim->cache_next;	/* remove from cache */
+		newbuf = victim->cache_reply;
+	} else {
+		victim = ALLOC(struct cache_node, 1);
+		if (victim == NULL) {
+			warnx(cache_set_str, cache_set_err2);
+			mutex_unlock(&dupreq_lock);
+			return;
+		}
+		newbuf = mem_alloc(su->su_iosz);
+		if (newbuf == NULL) {
+			warnx(cache_set_str, cache_set_err3);
+			FREE(victim, struct cache_node, 1);
+			mutex_unlock(&dupreq_lock);
+			return;
+		}
+	}
+
+	/*
+	 * Store it away
+	 */
+#ifdef RPC_CACHE_DEBUG
+	if (nconf = getnetconfigent(xprt->xp_netid)) {
+		uaddr = taddr2uaddr(nconf, &xprt->xp_rtaddr);
+		freenetconfigent(nconf);
+		printf(
+	"cache set for xid= %x prog=%d vers=%d proc=%d for rmtaddr=%s\n",
+			su->su_xid, uc->uc_prog, uc->uc_vers,
+			uc->uc_proc, uaddr);
+		free(uaddr);
+	}
+#endif
+	victim->cache_replylen = replylen;
+	victim->cache_reply = rpc_buffer(xprt);
+	rpc_buffer(xprt) = newbuf;
+	xdrmem_create(&(su->su_xdrs), rpc_buffer(xprt),
+			su->su_iosz, XDR_ENCODE);
+	victim->cache_xid = su->su_xid;
+	victim->cache_proc = uc->uc_proc;
+	victim->cache_vers = uc->uc_vers;
+	victim->cache_prog = uc->uc_prog;
+	victim->cache_addr = xprt->xp_rtaddr;
+	victim->cache_addr.buf = ALLOC(char, xprt->xp_rtaddr.len);
+	(void) memcpy(victim->cache_addr.buf, xprt->xp_rtaddr.buf,
+	    (size_t)xprt->xp_rtaddr.len);
+	loc = CACHE_LOC(xprt, victim->cache_xid);
+	victim->cache_next = uc->uc_entries[loc];
+	uc->uc_entries[loc] = victim;
+	uc->uc_fifo[uc->uc_nextvictim++] = victim;
+	uc->uc_nextvictim %= uc->uc_size;
+	mutex_unlock(&dupreq_lock);
+}
+
+/*
+ * Try to get an entry from the cache
+ * return 1 if found, 0 if not found and set the stage for cache_set()
+ */
+static int
+cache_get(xprt, msg, replyp, replylenp)
+	SVCXPRT *xprt;
+	struct rpc_msg *msg;
+	char **replyp;
+	size_t *replylenp;
+{
+	u_int loc;
+	cache_ptr ent;
+	struct svc_dg_data *su = su_data(xprt);
+	struct cl_cache *uc = (struct cl_cache *) su->su_cache;
+#ifdef RPC_CACHE_DEBUG
+	struct netconfig *nconf;
+	char *uaddr;
+#endif
+
+	mutex_lock(&dupreq_lock);
+	loc = CACHE_LOC(xprt, su->su_xid);
+	for (ent = uc->uc_entries[loc]; ent != NULL; ent = ent->cache_next) {
+		if (ent->cache_xid == su->su_xid &&
+			ent->cache_proc == msg->rm_call.cb_proc &&
+			ent->cache_vers == msg->rm_call.cb_vers &&
+			ent->cache_prog == msg->rm_call.cb_prog &&
+			ent->cache_addr.len == xprt->xp_rtaddr.len &&
+			(memcmp(ent->cache_addr.buf, xprt->xp_rtaddr.buf,
+				xprt->xp_rtaddr.len) == 0)) {
+#ifdef RPC_CACHE_DEBUG
+			if (nconf = getnetconfigent(xprt->xp_netid)) {
+				uaddr = taddr2uaddr(nconf, &xprt->xp_rtaddr);
+				freenetconfigent(nconf);
+				printf(
+	"cache entry found for xid=%x prog=%d vers=%d proc=%d for rmtaddr=%s\n",
+					su->su_xid, msg->rm_call.cb_prog,
+					msg->rm_call.cb_vers,
+					msg->rm_call.cb_proc, uaddr);
+				free(uaddr);
+			}
+#endif
+			*replyp = ent->cache_reply;
+			*replylenp = ent->cache_replylen;
+			mutex_unlock(&dupreq_lock);
+			return (1);
+		}
+	}
+	/*
+	 * Failed to find entry
+	 * Remember a few things so we can do a set later
+	 */
+	uc->uc_proc = msg->rm_call.cb_proc;
+	uc->uc_vers = msg->rm_call.cb_vers;
+	uc->uc_prog = msg->rm_call.cb_prog;
+	mutex_unlock(&dupreq_lock);
+	return (0);
+}