Update.

2000-01-23  Philip Blundell  <philb@gnu.org>

	Add basic support for RPC over IPv6:
	* sunrpc/rpc/svc.h (struct SVCXPRT): Use `struct sockaddr_storage'
	for remote address.
	(svcudp6_create, svcudp6_bufcreate, svctcp6_create): New
	prototypes.
	* sunrpc/rpc/clnt.h (clnttcp6_create, clntudp6_create,
	clntudp6_bufcreate): New prototypes.
	* inet/netinet/in.h (bindresport6): Likewise.
	* sunrpc/Makefile (routines): Add svc_tcp6, svc_udp6, bindrsvprt6.
	* sunrpc/Versions: Add svcfd6_create, svctcp6_create,
	svcudp6_create, svcudp6_bufcreate, svcudp6_enablecache,
	bindresvport6 for GLIBC_2.2.
	* sunrpc/rpc_main.c: Support `tcp6' and `udp6' transport types.
	* sunrpc/rpc_svcout.c: Likewise.
	* sunrpc/svc_tcp.c (rendezvous_request): Use memcpy rather than
	simple assignment when copying addresses.
	* sunrpc/svc_udp.c (cache_get): Likewise.
	* sunrpc/svc_unix.c (rendezvous_request): Likewise.
	* sunrpc/bindrsvprt6.c, sunrpc/clnt_tcp6.c, sunrpc/clnt_udp6.c,
	sunrpc/svc_tcp6.c, sunrpc/svc_udp6.c: New files.

2000-01-05  Philip Blundell  <philb@gnu.org>

	* sysdeps/unix/sysv/linux/arm/mmap64.S: Correct check for ENOSYS.

2000-01-23  Andreas Jaeger  <aj@suse.de>

	* sysdeps/unix/sysv/linux/i386/fxstat.c (__fxstat): Pass right
	parameter to fstat calls.

2000-01-18  Roland McGrath  <roland@baalperazim.frob.com>

	* sysdeps/generic/bits/socket.h
	(__ss_aligntype, struct sockaddr_storage): Make these like Linux
	version, replacing old type name `__ss_align'.

2000-01-05  Roland McGrath  <roland@baalperazim.frob.com>

	* sysdeps/generic/lseek64.c (__libc_lseek64): Renamed from __lseek64.
	(__lseek64, lseek64): Make these weak aliases for __libc_lseek64.
	* sysdeps/mach/hurd/lseek.c (__libc_lseek): Renamed from __lseek.
	(__lseek, lseek): Make these weak aliases for __libc_lseek.
	* sysdeps/mach/hurd/fcntl.c (__libc_fcntl): Renamed from __fcntl.
	(__fcntl, fcntl): Make these weak aliases for __libc_fcntl.
	* sysdeps/mach/hurd/open.c (__libc_open): Renamed from __open.
	(__open, open): Make these weak aliases for __libc_open.

	* sysdeps/generic/bits/socket.h (enum __socket_type): Remove
	trailing comma.
	(anonymous enum for MSG_*): Likewise.
	(anonymous enum for SO_*): Likewise.

2000-01-23  Ulrich Drepper  <drepper@cygnus.com>

	* string/bits/string2.h: Fix typo (__GNU_SOURCE -> __USE_GNU)
	(PR libc/1553).

1 files changed, 512 insertions, 0 deletions

diff --git a/sunrpc/svc_udp6.c b/sunrpc/svc_udp6.c
new file mode 100644
index 0000000000..3556a2e060
--- /dev/null
+++ b/sunrpc/svc_udp6.c
@@ -0,0 +1,512 @@
+/* @(#)svc_udp.c	2.2 88/07/29 4.0 RPCSRC */
+/*
+ * 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(lint) && defined(SCCSIDS)
+static char sccsid[] = "@(#)svc_udp.c 1.24 87/08/11 Copyr 1984 Sun Micro";
+#endif
+
+/*
+ * svc_udp.c,
+ * Server side for UDP/IP based RPC.  (Does some caching in the hopes of
+ * achieving execute-at-most-once semantics.)
+ *
+ * Copyright (C) 1984, Sun Microsystems, Inc.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <libintl.h>
+#include <rpc/rpc.h>
+#include <sys/socket.h>
+#include <errno.h>
+
+#ifdef USE_IN_LIBIO
+# include <libio/iolibio.h>
+# define fputs(s, f) _IO_fputs (s, f)
+#endif
+
+#define rpc_buffer(xprt) ((xprt)->xp_p1)
+#ifndef MAX
+#define MAX(a, b)     ((a > b) ? a : b)
+#endif
+
+static bool_t svcudp6_recv (SVCXPRT *, struct rpc_msg *);
+static bool_t svcudp6_reply (SVCXPRT *, struct rpc_msg *);
+static enum xprt_stat svcudp6_stat (SVCXPRT *);
+static bool_t svcudp6_getargs (SVCXPRT *, xdrproc_t, caddr_t);
+static bool_t svcudp6_freeargs (SVCXPRT *, xdrproc_t, caddr_t);
+static void svcudp6_destroy (SVCXPRT *);
+
+static const struct xp_ops svcudp6_op =
+{
+  svcudp6_recv,
+  svcudp6_stat,
+  svcudp6_getargs,
+  svcudp6_reply,
+  svcudp6_freeargs,
+  svcudp6_destroy
+};
+
+static int cache_get (SVCXPRT *, struct rpc_msg *, char **replyp,
+		      u_long *replylenp);
+static void cache_set (SVCXPRT *xprt, u_long replylen);
+
+/*
+ * kept in xprt->xp_p2
+ */
+struct svcudp_data
+  {
+    u_int su_iosz;		/* byte size of send.recv buffer */
+    u_long su_xid;		/* transaction id */
+    XDR su_xdrs;		/* XDR handle */
+    char su_verfbody[MAX_AUTH_BYTES];	/* verifier body */
+    char *su_cache;		/* cached data, NULL if no cache */
+  };
+#define	su_data(xprt)	((struct svcudp_data *)(xprt->xp_p2))
+
+/*
+ * Usage:
+ *      xprt = svcudp_create(sock);
+ *
+ * If sock<0 then a socket is created, else sock is used.
+ * If the socket, sock is not bound to a port then svcudp_create
+ * binds it to an arbitrary port.  In any (successful) case,
+ * xprt->xp_sock is the registered socket number and xprt->xp_port is the
+ * associated port number.
+ * Once *xprt is initialized, it is registered as a transporter;
+ * see (svc.h, xprt_register).
+ * The routines returns NULL if a problem occurred.
+ */
+SVCXPRT *
+svcudp6_bufcreate (sock, sendsz, recvsz)
+     int sock;
+     u_int sendsz, recvsz;
+{
+  bool_t madesock = FALSE;
+  SVCXPRT *xprt;
+  struct svcudp_data *su;
+  struct sockaddr_in6 addr;
+  socklen_t len = sizeof (struct sockaddr_in6);
+
+  if (sock == RPC_ANYSOCK)
+    {
+      if ((sock = __socket (AF_INET6, SOCK_DGRAM, IPPROTO_UDP)) < 0)
+	{
+	  perror (_("svcudp_create: socket creation problem"));
+	  return (SVCXPRT *) NULL;
+	}
+      madesock = TRUE;
+    }
+  __bzero ((char *) &addr, sizeof (addr));
+  addr.sin6_family = AF_INET6;
+  if (bindresvport6 (sock, &addr))
+    {
+      addr.sin6_port = 0;
+      (void) bind (sock, (struct sockaddr *) &addr, len);
+    }
+  if (getsockname (sock, (struct sockaddr *) &addr, &len) != 0)
+    {
+      perror (_("svcudp_create - cannot getsockname"));
+      if (madesock)
+	(void) __close (sock);
+      return (SVCXPRT *) NULL;
+    }
+  xprt = (SVCXPRT *) mem_alloc (sizeof (SVCXPRT));
+  if (xprt == NULL)
+    {
+      (void) fputs (_("svcudp_create: out of memory\n"), stderr);
+      return NULL;
+    }
+  su = (struct svcudp_data *) mem_alloc (sizeof (*su));
+  if (su == NULL)
+    {
+      (void) fputs (_("svcudp_create: out of memory\n"), stderr);
+      return NULL;
+    }
+  su->su_iosz = ((MAX (sendsz, recvsz) + 3) / 4) * 4;
+  if ((rpc_buffer (xprt) = mem_alloc (su->su_iosz)) == NULL)
+    {
+      (void) fputs (_("svcudp_create: out of memory\n"), stderr);
+      return NULL;
+    }
+  xdrmem_create (&(su->su_xdrs), rpc_buffer (xprt), su->su_iosz, XDR_DECODE);
+  su->su_cache = NULL;
+  xprt->xp_p2 = (caddr_t) su;
+  xprt->xp_verf.oa_base = su->su_verfbody;
+  xprt->xp_ops = &svcudp6_op;
+  xprt->xp_port = ntohs (addr.sin6_port);
+  xprt->xp_sock = sock;
+  xprt_register (xprt);
+  return xprt;
+}
+
+SVCXPRT *
+svcudp6_create (sock)
+     int sock;
+{
+
+  return svcudp6_bufcreate (sock, UDPMSGSIZE, UDPMSGSIZE);
+}
+
+static enum xprt_stat
+svcudp6_stat (xprt)
+     SVCXPRT *xprt;
+{
+
+  return XPRT_IDLE;
+}
+
+static bool_t
+svcudp6_recv (xprt, msg)
+     SVCXPRT *xprt;
+     struct rpc_msg *msg;
+{
+  struct svcudp_data *su = su_data (xprt);
+  XDR *xdrs = &(su->su_xdrs);
+  int rlen;
+  char *reply;
+  u_long replylen;
+  socklen_t len;
+
+again:
+  /* FIXME -- should xp_addrlen be a size_t?  */
+  len = (socklen_t) sizeof(struct sockaddr_in6);
+  rlen = recvfrom (xprt->xp_sock, rpc_buffer (xprt), (int) su->su_iosz, 0,
+		   (struct sockaddr *) &(xprt->xp_raddr), &len);
+  xprt->xp_addrlen = len;
+  if (rlen == -1 && errno == EINTR)
+    goto again;
+  if (rlen < 16)		/* < 4 32-bit ints? */
+    return FALSE;
+  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_sock, reply, (int) replylen, 0,
+		         (struct sockaddr *) &xprt->xp_raddr, len);
+	  return TRUE;
+	}
+    }
+  return TRUE;
+}
+
+static bool_t
+svcudp6_reply (xprt, msg)
+     SVCXPRT *xprt;
+     struct rpc_msg *msg;
+{
+  struct svcudp_data *su = su_data (xprt);
+  XDR *xdrs = &(su->su_xdrs);
+  int slen;
+  bool_t stat = FALSE;
+
+  xdrs->x_op = XDR_ENCODE;
+  XDR_SETPOS (xdrs, 0);
+  msg->rm_xid = su->su_xid;
+  if (xdr_replymsg (xdrs, msg))
+    {
+      slen = (int) XDR_GETPOS (xdrs);
+      if (sendto (xprt->xp_sock, rpc_buffer (xprt), slen, 0,
+		  (struct sockaddr *) &(xprt->xp_raddr), xprt->xp_addrlen)
+	  == slen)
+	{
+	  stat = TRUE;
+	  if (su->su_cache && slen >= 0)
+	    {
+	      cache_set (xprt, (u_long) slen);
+	    }
+	}
+    }
+  return stat;
+}
+
+static bool_t
+svcudp6_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
+svcudp6_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
+svcudp6_destroy (xprt)
+     SVCXPRT *xprt;
+{
+  struct svcudp_data *su = su_data (xprt);
+
+  xprt_unregister (xprt);
+  (void) __close (xprt->xp_sock);
+  XDR_DESTROY (&(su->su_xdrs));
+  mem_free (rpc_buffer (xprt), su->su_iosz);
+  mem_free ((caddr_t) su, sizeof (struct svcudp_data));
+  mem_free ((caddr_t) xprt, sizeof (SVCXPRT));
+}
+
+
+/***********this could be a separate file*********************/
+
+/*
+ * Fifo cache for udp server
+ * Copies pointers to reply buffers into fifo cache
+ * Buffers are sent again if retransmissions are detected.
+ */
+
+#define SPARSENESS 4		/* 75% sparse */
+
+#define CACHE_PERROR(msg)	\
+	(void) fprintf(stderr,"%s\n", msg)
+
+#define ALLOC(type, size)	\
+	(type *) mem_alloc((unsigned) (sizeof(type) * (size)))
+
+#define BZERO(addr, type, size)	 \
+	__bzero((char *) addr, sizeof(type) * (int) (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_long cache_xid;
+    u_long cache_proc;
+    u_long cache_vers;
+    u_long cache_prog;
+    struct sockaddr_in6 cache_addr;
+    /*
+     * The cached reply and length
+     */
+    char *cache_reply;
+    u_long cache_replylen;
+    /*
+     * Next node on the list, if there is a collision
+     */
+    cache_ptr cache_next;
+  };
+
+
+
+/*
+ * The entire cache
+ */
+struct udp_cache
+  {
+    u_long 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_long uc_nextvictim;	/* points to next victim in fifo list */
+    u_long uc_prog;		/* saved program number */
+    u_long uc_vers;		/* saved version number */
+    u_long uc_proc;		/* saved procedure number */
+    struct sockaddr_in6 uc_addr;	/* saved caller's address */
+  };
+
+
+/*
+ * the hashing function
+ */
+#define CACHE_LOC(transp, xid)	\
+ (xid % (SPARSENESS*((struct udp_cache *) su_data(transp)->su_cache)->uc_size))
+
+
+/*
+ * Enable use of the cache.
+ * Note: there is no disable.
+ */
+int
+svcudp6_enablecache (SVCXPRT *transp, u_long size)
+{
+  struct svcudp_data *su = su_data (transp);
+  struct udp_cache *uc;
+
+  if (su->su_cache != NULL)
+    {
+      CACHE_PERROR (_("enablecache: cache already enabled"));
+      return 0;
+    }
+  uc = ALLOC (struct udp_cache, 1);
+  if (uc == NULL)
+    {
+      CACHE_PERROR (_("enablecache: could not allocate cache"));
+      return 0;
+    }
+  uc->uc_size = size;
+  uc->uc_nextvictim = 0;
+  uc->uc_entries = ALLOC (cache_ptr, size * SPARSENESS);
+  if (uc->uc_entries == NULL)
+    {
+      CACHE_PERROR (_("enablecache: could not allocate cache data"));
+      return 0;
+    }
+  BZERO (uc->uc_entries, cache_ptr, size * SPARSENESS);
+  uc->uc_fifo = ALLOC (cache_ptr, size);
+  if (uc->uc_fifo == NULL)
+    {
+      CACHE_PERROR (_("enablecache: could not allocate cache fifo"));
+      return 0;
+    }
+  BZERO (uc->uc_fifo, cache_ptr, size);
+  su->su_cache = (char *) uc;
+  return 1;
+}
+
+
+/*
+ * Set an entry in the cache
+ */
+static void
+cache_set (SVCXPRT *xprt, u_long replylen)
+{
+  cache_ptr victim;
+  cache_ptr *vicp;
+  struct svcudp_data *su = su_data (xprt);
+  struct udp_cache *uc = (struct udp_cache *) su->su_cache;
+  u_int loc;
+  char *newbuf;
+
+  /*
+   * 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)
+	{
+	  CACHE_PERROR (_("cache_set: victim not found"));
+	  return;
+	}
+      *vicp = victim->cache_next;	/* remote from cache */
+      newbuf = victim->cache_reply;
+    }
+  else
+    {
+      victim = ALLOC (struct cache_node, 1);
+      if (victim == NULL)
+	{
+	  CACHE_PERROR (_("cache_set: victim alloc failed"));
+	  return;
+	}
+      newbuf = mem_alloc (su->su_iosz);
+      if (newbuf == NULL)
+	{
+	  CACHE_PERROR (_("cache_set: could not allocate new rpc_buffer"));
+	  return;
+	}
+    }
+
+  /*
+   * Store it away
+   */
+  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 = uc->uc_addr;
+  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;
+}
+
+/*
+ * Try to get an entry from the cache
+ * return 1 if found, 0 if not found
+ */
+static int
+cache_get (xprt, msg, replyp, replylenp)
+     SVCXPRT *xprt;
+     struct rpc_msg *msg;
+     char **replyp;
+     u_long *replylenp;
+{
+  u_int loc;
+  cache_ptr ent;
+  struct svcudp_data *su = su_data (xprt);
+  struct udp_cache *uc = (struct udp_cache *) su->su_cache;
+
+#define EQADDR(a1, a2)	(memcmp((char*)&a1, (char*)&a2, sizeof(a1)) == 0)
+
+  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 == uc->uc_proc &&
+	  ent->cache_vers == uc->uc_vers &&
+	  ent->cache_prog == uc->uc_prog &&
+	  EQADDR (ent->cache_addr, uc->uc_addr))
+	{
+	  *replyp = ent->cache_reply;
+	  *replylenp = ent->cache_replylen;
+	  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;
+  memcpy (&uc->uc_addr, &xprt->xp_raddr, sizeof (uc->uc_addr));
+  return 0;
+}