remove RPC implementation

The included RPC implementation is ipv4 only.
Other C library projects have either deprecated the internal
RPC implementation (GNU C Library) or never implemented such
functionality (musl C Library). The latest rpcbind release (0.2.4)
checks for libtirpc and does not allow to be build with uClibc-ng
RPC without patching. The common use case for RPC nowadays is to
use rpcbind together with nfs-utils to provide NFS server or client
support to a system.

The included RPC implementation does create issues with duplicate
symbol failures when statically compiling with RPC enabled.

77 files changed, 1 insertions, 15332 deletions

diff --git a/Makefile.in b/Makefile.in
index bb3549c19..0051199d6 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -254,10 +254,7 @@ HEADERS_RM- := \
 	bits/stackinfo.h \
 	atomic.h \
 	bits/atomic.h \
-	tls.h \
-	rpc/des_crypt.h \
-	rpc/key_prot.h \
-	rpc/rpc_des.h
+	tls.h
 ifeq ($(UCLIBC_STRICT_HEADERS),y)
 HEADERS_RM- += sgtty.h
 endif
@@ -288,7 +285,6 @@ HEADERS_RM-$(UCLIBC_HAS_REALTIME)            += mqueue.h bits/mqueue.h sched.h \
 	bits/sched.h \
 	semaphore.h
 HEADERS_RM-$(UCLIBC_HAS_REGEX)               += regex.h regexp.h
-HEADERS_RM-$(UCLIBC_HAS_RPC)                 += rpc
 HEADERS_RM-$(UCLIBC_HAS_SHADOW)              += shadow.h
 HEADERS_RM-$(UCLIBC_HAS_SOCKET)              += sys/socket.h bits/socket.h sys/socketvar.h bits/socket_type.h
 HEADERS_RM-$(UCLIBC_HAS_SYSLOG)              += syslog.h sys/syslog.h bits/syslog*.h
diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in
index 850bd7d13..b329f88b7 100644
--- a/extra/Configs/Config.in
+++ b/extra/Configs/Config.in
@@ -1250,36 +1250,6 @@ config UCLIBC_HAS_IPV6
 
 	  Most people should answer N.
 
-config UCLIBC_HAS_RPC
-	bool "Remote Procedure Call (RPC) support"
-	# RPC+socket-ipvX doesn't currently work.
-	depends on UCLIBC_HAS_IPV4 || UCLIBC_HAS_IPV6
-	help
-	  If you want to include RPC support, enable this.  RPC is rarely used
-	  for anything except for the NFS filesystem.  Unless you plan to use
-	  NFS, you can probably leave this set to N and save some space.
-
-	  If you need to use NFS then you should answer Y.
-
-config UCLIBC_HAS_FULL_RPC
-	bool "Full RPC support"
-	depends on UCLIBC_HAS_RPC
-	default y if !HAVE_SHARED
-	help
-	  Normally we enable just enough RPC support for things like rshd and
-	  nfs mounts to work.  If you find you need the rest of the RPC stuff,
-	  then enable this option.  Most people can safely answer N.
-
-config UCLIBC_HAS_REENTRANT_RPC
-	bool "Reentrant RPC support"
-	depends on UCLIBC_HAS_RPC
-	default y if !HAVE_SHARED
-	help
-	  Most packages utilize the normal (non-reentrant) RPC functions, but
-	  some (like exportfs from nfs-utils) need these reentrant versions.
-
-	  Most people can safely answer N.
-
 config UCLIBC_USE_NETLINK
 	bool "Use netlink to query interfaces"
 	depends on UCLIBC_HAS_SOCKET
diff --git a/include/netdb.h b/include/netdb.h
index 95abe95cb..a85797956 100644
--- a/include/netdb.h
+++ b/include/netdb.h
@@ -26,11 +26,6 @@
 
 #include <netinet/in.h>
 #include <stdint.h>
-#if defined __USE_MISC && defined __UCLIBC_HAS_RPC__
-/* This is necessary to make this include file properly replace the
-   Sun version.  */
-# include <rpc/netdb.h>
-#endif
 
 #ifdef __USE_GNU
 # define __need_sigevent_t
diff --git a/include/protocols/timed.h b/include/protocols/timed.h
index f50061cc1..06c2daec6 100644
--- a/include/protocols/timed.h
+++ b/include/protocols/timed.h
@@ -33,9 +33,6 @@
 #define	_PROTOCOLS_TIMED_H 1
 
 #include <features.h>
-#ifdef __UCLIBC_HAS_RPC__
-#include <rpc/types.h>
-#endif
 
 /*
  * Time Synchronization Protocol
diff --git a/include/rpc/auth.h b/include/rpc/auth.h
deleted file mode 100644
index 70066fe52..000000000
--- a/include/rpc/auth.h
+++ /dev/null
@@ -1,225 +0,0 @@
-/* @(#)auth.h	2.3 88/08/07 4.0 RPCSRC; from 1.17 88/02/08 SMI */
-/*
- * 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
- */
-
-/*
- * auth.h, Authentication interface.
- *
- * Copyright (C) 1984, Sun Microsystems, Inc.
- *
- * The data structures are completely opaque to the client.  The client
- * is required to pass a AUTH * to routines that create rpc
- * "sessions".
- */
-
-#ifndef _RPC_AUTH_H
-
-#define _RPC_AUTH_H	1
-#include <features.h>
-#include <rpc/xdr.h>
-
-__BEGIN_DECLS
-
-#define MAX_AUTH_BYTES	400
-#define MAXNETNAMELEN	255	/* maximum length of network user's name */
-
-/*
- * Status returned from authentication check
- */
-enum auth_stat {
-	AUTH_OK=0,
-	/*
-	 * failed at remote end
-	 */
-	AUTH_BADCRED=1,			/* bogus credentials (seal broken) */
-	AUTH_REJECTEDCRED=2,		/* client should begin new session */
-	AUTH_BADVERF=3,			/* bogus verifier (seal broken) */
-	AUTH_REJECTEDVERF=4,		/* verifier expired or was replayed */
-	AUTH_TOOWEAK=5,			/* rejected due to security reasons */
-	/*
-	 * failed locally
-	*/
-	AUTH_INVALIDRESP=6,		/* bogus response verifier */
-	AUTH_FAILED=7			/* some unknown reason */
-};
-
-union des_block {
-	struct {
-		u_int32_t high;
-		u_int32_t low;
-	} key;
-	char c[8];
-};
-typedef union des_block des_block;
-extern bool_t xdr_des_block (XDR *__xdrs, des_block *__blkp) __THROW;
-
-/*
- * Authentication info.  Opaque to client.
- */
-struct opaque_auth {
-	enum_t	oa_flavor;		/* flavor of auth */
-	caddr_t	oa_base;		/* address of more auth stuff */
-	u_int	oa_length;		/* not to exceed MAX_AUTH_BYTES */
-};
-
-/*
- * Auth handle, interface to client side authenticators.
- */
-typedef struct AUTH AUTH;
-struct AUTH {
-  struct opaque_auth ah_cred;
-  struct opaque_auth ah_verf;
-  union des_block ah_key;
-  /* not sure whether non-const-ness is a part of the spec... if it is,
-   * enclose "const" in #ifdef _LIBC / #endif
-   * to make it effective only for libc compile */
-  const
-  struct auth_ops {
-    void (*ah_nextverf) (AUTH *);
-    int  (*ah_marshal) (AUTH *, XDR *);		/* nextverf & serialize */
-    int  (*ah_validate) (AUTH *, struct opaque_auth *);
-						/* validate verifier */
-    int  (*ah_refresh) (AUTH *);		/* refresh credentials */
-    void (*ah_destroy) (AUTH *);		/* destroy this structure */
-  } *ah_ops;
-  caddr_t ah_private;
-};
-
-
-/*
- * Authentication ops.
- * The ops and the auth handle provide the interface to the authenticators.
- *
- * AUTH	*auth;
- * XDR	*xdrs;
- * struct opaque_auth verf;
- */
-#define AUTH_NEXTVERF(auth)		\
-		((*((auth)->ah_ops->ah_nextverf))(auth))
-#define auth_nextverf(auth)		\
-		((*((auth)->ah_ops->ah_nextverf))(auth))
-
-#define AUTH_MARSHALL(auth, xdrs)	\
-		((*((auth)->ah_ops->ah_marshal))(auth, xdrs))
-#define auth_marshall(auth, xdrs)	\
-		((*((auth)->ah_ops->ah_marshal))(auth, xdrs))
-
-#define AUTH_VALIDATE(auth, verfp)	\
-		((*((auth)->ah_ops->ah_validate))((auth), verfp))
-#define auth_validate(auth, verfp)	\
-		((*((auth)->ah_ops->ah_validate))((auth), verfp))
-
-#define AUTH_REFRESH(auth)		\
-		((*((auth)->ah_ops->ah_refresh))(auth))
-#define auth_refresh(auth)		\
-		((*((auth)->ah_ops->ah_refresh))(auth))
-
-#define AUTH_DESTROY(auth)		\
-		((*((auth)->ah_ops->ah_destroy))(auth))
-#define auth_destroy(auth)		\
-		((*((auth)->ah_ops->ah_destroy))(auth))
-
-
-extern struct opaque_auth _null_auth;
-
-
-/*
- * These are the various implementations of client side authenticators.
- */
-
-/*
- * Unix style authentication
- * AUTH *authunix_create(machname, uid, gid, len, aup_gids)
- *	char *machname;
- *	int uid;
- *	int gid;
- *	int len;
- *	int *aup_gids;
- */
-extern AUTH *authunix_create (char *__machname, __uid_t __uid, __gid_t __gid,
-			      int __len, __gid_t *__aup_gids);
-libc_hidden_proto(authunix_create)
-extern AUTH *authunix_create_default (void);
-libc_hidden_proto(authunix_create_default)
-extern AUTH *authnone_create (void) __THROW;
-libc_hidden_proto(authnone_create)
-#if 0
-extern AUTH *authdes_create (const char *__servername, u_int __window,
-			     struct sockaddr *__syncaddr, des_block *__ckey)
-     __THROW;
-extern AUTH *authdes_pk_create (const char *, netobj *, u_int,
-				struct sockaddr *, des_block *) __THROW;
-#endif
-
-
-#define AUTH_NONE	0		/* no authentication */
-#define	AUTH_NULL	0		/* backward compatibility */
-#define	AUTH_SYS	1		/* unix style (uid, gids) */
-#define	AUTH_UNIX	AUTH_SYS
-#define	AUTH_SHORT	2		/* short hand unix style */
-#define AUTH_DES	3		/* des style (encrypted timestamps) */
-#define AUTH_DH		AUTH_DES	/* Diffie-Hellman (this is DES) */
-#define AUTH_KERB       4               /* kerberos style */
-
-#if 0
-/*
- *  Netname manipulating functions
- *
- */
-extern int getnetname (char *) __THROW;
-extern int host2netname (char *, const char *, const char *) __THROW;
-extern int user2netname (char *, const uid_t, const char *) __THROW;
-extern int netname2user (const char *, uid_t *, gid_t *, int *, gid_t *)
-     __THROW;
-extern int netname2host (const char *, char *, const int) __THROW;
-
-/*
- *
- * These routines interface to the keyserv daemon
- *
- */
-extern int key_decryptsession (char *, des_block *);
-extern int key_decryptsession_pk (char *, netobj *, des_block *);
-extern int key_encryptsession (char *, des_block *);
-extern int key_encryptsession_pk (char *, netobj *, des_block *);
-extern int key_gendes (des_block *);
-extern int key_setsecret (char *);
-extern int key_secretkey_is_set (void);
-extern int key_get_conv (char *, des_block *);
-#endif
-
-/*
- * XDR an opaque authentication struct.
- */
-extern bool_t xdr_opaque_auth (XDR *, struct opaque_auth *) __THROW;
-libc_hidden_proto(xdr_opaque_auth)
-
-__END_DECLS
-
-#endif /* rpc/auth.h */
diff --git a/include/rpc/auth_des.h b/include/rpc/auth_des.h
deleted file mode 100644
index bcd96e424..000000000
--- a/include/rpc/auth_des.h
+++ /dev/null
@@ -1,115 +0,0 @@
-/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef _RPC_AUTH_DES_H
-#define _RPC_AUTH_DES_H	1
-
-#include <sys/cdefs.h>
-#include <rpc/auth.h>
-
-__BEGIN_DECLS
-
-#if 0
-/* There are two kinds of "names": fullnames and nicknames */
-enum authdes_namekind
-  {
-    ADN_FULLNAME,
-    ADN_NICKNAME
-  };
-
-/* A fullname contains the network name of the client,
-   a conversation key and the window */
-struct authdes_fullname
-  {
-    char *name;		/* network name of client, up to MAXNETNAMELEN */
-    des_block key;	/* conversation key */
-    uint32_t window;	/* associated window */
-  };
-
-/* A credential */
-struct authdes_cred
-  {
-    enum authdes_namekind adc_namekind;
-    struct authdes_fullname adc_fullname;
-    uint32_t adc_nickname;
-  };
-#endif
-
-/* A timeval replacement for !32bit platforms */
-struct rpc_timeval
-  {
-    uint32_t tv_sec;            /* Seconds.  */
-    uint32_t tv_usec;           /* Microseconds.  */
-  };
-
-#if 0
-/* A des authentication verifier */
-struct authdes_verf
-  {
-    union
-      {
-	struct rpc_timeval adv_ctime;	/* clear time */
-	des_block adv_xtime;		/* crypt time */
-      }
-    adv_time_u;
-    uint32_t adv_int_u;
-  };
-
-/* des authentication verifier: client variety
-
-   adv_timestamp is the current time.
-   adv_winverf is the credential window + 1.
-   Both are encrypted using the conversation key. */
-#define adv_timestamp  adv_time_u.adv_ctime
-#define adv_xtimestamp adv_time_u.adv_xtime
-#define adv_winverf    adv_int_u
-
-/* des authentication verifier: server variety
-
-   adv_timeverf is the client's timestamp + client's window
-   adv_nickname is the server's nickname for the client.
-   adv_timeverf is encrypted using the conversation key. */
-#define adv_timeverf   adv_time_u.adv_ctime
-#define adv_xtimeverf  adv_time_u.adv_xtime
-#define adv_nickname   adv_int_u
-
-/* Map a des credential into a unix cred. */
-extern int authdes_getucred (const struct authdes_cred * __adc,
-			     uid_t * __uid, gid_t * __gid,
-			     short *__grouplen, gid_t * __groups) __THROW;
-
-/* Get the public key for NAME and place it in KEY.  NAME can only be
-   up to MAXNETNAMELEN bytes long and the destination buffer KEY should
-   have HEXKEYBYTES + 1 bytes long to fit all characters from the key.  */
-extern int getpublickey (const char *__name, char *__key) __THROW;
-
-/* Get the secret key for NAME and place it in KEY.  PASSWD is used to
-   decrypt the encrypted key stored in the database.  NAME can only be
-   up to MAXNETNAMELEN bytes long and the destination buffer KEY
-   should have HEXKEYBYTES + 1 bytes long to fit all characters from
-   the key.  */
-extern int getsecretkey (const char *__name, char *__key,
-			 const char *__passwd) __THROW;
-#endif
-
-extern int rtime (struct sockaddr_in *__addrp, struct rpc_timeval *__timep,
-		  struct rpc_timeval *__timeout) __THROW;
-
-__END_DECLS
-
-
-#endif /* rpc/auth_des.h */
diff --git a/include/rpc/auth_unix.h b/include/rpc/auth_unix.h
deleted file mode 100644
index 713fcb437..000000000
--- a/include/rpc/auth_unix.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/* @(#)auth_unix.h	2.2 88/07/29 4.0 RPCSRC; from 1.8 88/02/08 SMI */
-/*
- * 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 a