Cleanup and split of nfs client and server code.

This builds on the top of several repo-copies.
author: peter <peter@FreeBSD.org> 2001-09-18 23:32:09 +0000
committer: peter <peter@FreeBSD.org> 2001-09-18 23:32:09 +0000
commit: 85182a8d785d189f1e845c7d66810e3977ac161b (patch)
tree: 626c88f61c1e52e9cd18eaec61b54aaaee5d3bfc /sys/nfs/krpc_subr.c
parent: abe9cf18de01077e00cd2ee3d47363af647e65e4 (diff)
download: FreeBSD-src-85182a8d785d189f1e845c7d66810e3977ac161b.zip
FreeBSD-src-85182a8d785d189f1e845c7d66810e3977ac161b.tar.gz
1 files changed, 0 insertions, 487 deletions
diff --git a/sys/nfs/krpc_subr.c b/sys/nfs/krpc_subr.c
deleted file mode 100644
index 709af4a..0000000
--- a/sys/nfs/krpc_subr.c
+++ /dev/null
@@ -1,487 +0,0 @@
-/*	$NetBSD: krpc_subr.c,v 1.12.4.1 1996/06/07 00:52:26 cgd Exp $	*/
-/* $FreeBSD$	*/
-
-/*
- * Copyright (c) 1995 Gordon Ross, Adam Glass
- * Copyright (c) 1992 Regents of the University of California.
- * All rights reserved.
- *
- * This software was developed by the Computer Systems Engineering group
- * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
- * contributed to Berkeley.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Lawrence Berkeley Laboratory and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * partially based on:
- *      libnetboot/rpc.c
- *               @(#) Header: rpc.c,v 1.12 93/09/28 08:31:56 leres Exp  (LBL)
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/malloc.h>
-#include <sys/mbuf.h>
-#include <sys/socket.h>
-#include <sys/socketvar.h>
-#include <sys/uio.h>
-
-#include <net/if.h>
-#include <netinet/in.h>
-
-#include <nfs/rpcv2.h>
-#include <nfs/krpc.h>
-#include <nfs/xdr_subs.h>
-
-/*
- * Kernel support for Sun RPC
- *
- * Used currently for bootstrapping in nfs diskless configurations.
- */
-
-/*
- * Generic RPC headers
- */
-
-struct auth_info {
-	u_int32_t 	authtype;	/* auth type */
-	u_int32_t	authlen;	/* auth length */
-};
-
-struct auth_unix {
-	int32_t   ua_time;
-	int32_t   ua_hostname;	/* null */
-	int32_t   ua_uid;
-	int32_t   ua_gid;
-	int32_t   ua_gidlist;	/* null */
-};
-
-struct rpc_call {
-	u_int32_t	rp_xid;		/* request transaction id */
-	int32_t 	rp_direction;	/* call direction (0) */
-	u_int32_t	rp_rpcvers;	/* rpc version (2) */
-	u_int32_t	rp_prog;	/* program */
-	u_int32_t	rp_vers;	/* version */
-	u_int32_t	rp_proc;	/* procedure */
-	struct	auth_info rpc_auth;
-	struct	auth_unix rpc_unix;
-	struct	auth_info rpc_verf;
-};
-
-struct rpc_reply {
-	u_int32_t rp_xid;		/* request transaction id */
-	int32_t  rp_direction;		/* call direction (1) */
-	int32_t  rp_astatus;		/* accept status (0: accepted) */
-	union {
-		u_int32_t rpu_errno;
-		struct {
-			struct auth_info rok_auth;
-			u_int32_t	rok_status;
-		} rpu_rok;
-	} rp_u;
-};
-#define rp_errno  rp_u.rpu_errno
-#define rp_auth   rp_u.rpu_rok.rok_auth
-#define rp_status rp_u.rpu_rok.rok_status
-
-#define MIN_REPLY_HDR 16	/* xid, dir, astat, errno */
-
-/*
- * What is the longest we will wait before re-sending a request?
- * Note this is also the frequency of "RPC timeout" messages.
- * The re-send loop count sup linearly to this maximum, so the
- * first complaint will happen after (1+2+3+4+5)=15 seconds.
- */
-#define	MAX_RESEND_DELAY 5	/* seconds */
-
-/*
- * Call portmap to lookup a port number for a particular rpc program
- * Returns non-zero error on failure.
- */
-int
-krpc_portmap(sin,  prog, vers, portp, td)
-	struct sockaddr_in *sin;		/* server address */
-	u_int prog, vers;	/* host order */
-	u_int16_t *portp;	/* network order */
-	struct thread *td;
-{
-	struct sdata {
-		u_int32_t prog;		/* call program */
-		u_int32_t vers;		/* call version */
-		u_int32_t proto;	/* call protocol */
-		u_int32_t port;		/* call port (unused) */
-	} *sdata;
-	struct rdata {
-		u_int16_t pad;
-		u_int16_t port;
-	} *rdata;
-	struct mbuf *m;
-	int error;
-
-	/* The portmapper port is fixed. */
-	if (prog == PMAPPROG) {
-		*portp = htons(PMAPPORT);
-		return 0;
-	}
-
-	m = m_get(M_TRYWAIT, MT_DATA);
-	if (m == NULL)
-		return ENOBUFS;
-	sdata = mtod(m, struct sdata *);
-	m->m_len = sizeof(*sdata);
-
-	/* Do the RPC to get it. */
-	sdata->prog = txdr_unsigned(prog);
-	sdata->vers = txdr_unsigned(vers);
-	sdata->proto = txdr_unsigned(IPPROTO_UDP);
-	sdata->port = 0;
-
-	sin->sin_port = htons(PMAPPORT);
-	error = krpc_call(sin, PMAPPROG, PMAPVERS,
-					  PMAPPROC_GETPORT, &m, NULL, td);
-	if (error) 
-		return error;
-
-	if (m->m_len < sizeof(*rdata)) {
-		m = m_pullup(m, sizeof(*rdata));
-		if (m == NULL)
-			return ENOBUFS;
-	}
-	rdata = mtod(m, struct rdata *);
-	*portp = rdata->port;
-
-	m_freem(m);
-	return 0;
-}
-
-/*
- * Do a remote procedure call (RPC) and wait for its reply.
- * If from_p is non-null, then we are doing broadcast, and
- * the address from whence the response came is saved there.
- */
-int
-krpc_call(sa, prog, vers, func, data, from_p, td)
-	struct sockaddr_in *sa;
-	u_int prog, vers, func;
-	struct mbuf **data;	/* input/output */
-	struct sockaddr **from_p;	/* output */
-	struct thread *td;
-{
-	struct socket *so;
-	struct sockaddr_in *sin, ssin;
-	struct sockaddr *from;
-	struct mbuf *m, *nam, *mhead;
-	struct rpc_call *call;
-	struct rpc_reply *reply;
-	struct sockopt sopt;
-	struct timeval tv;
-	struct uio auio;
-	int error, rcvflg, timo, secs, len;
-	static u_int32_t xid = ~0xFF;
-	u_int16_t tport;
-	u_int32_t saddr;
-
-	/*
-	 * Validate address family.
-	 * Sorry, this is INET specific...
-	 */
-	if (sa->sin_family != AF_INET)
-		return (EAFNOSUPPORT);
-
-	/* Free at end if not null. */
-	nam = mhead = NULL;
-	from = NULL;
-
-	/*
-	 * Create socket and set its recieve timeout.
-	 */
-	if ((error = socreate(AF_INET, &so, SOCK_DGRAM, 0, td)))
-		goto out;
-
-	tv.tv_sec = 1;
-	tv.tv_usec = 0;
-	bzero(&sopt, sizeof sopt);
-	sopt.sopt_level = SOL_SOCKET;
-	sopt.sopt_name = SO_RCVTIMEO;
-	sopt.sopt_val = &tv;
-	sopt.sopt_valsize = sizeof tv;
-
-	if ((error = sosetopt(so, &sopt)) != 0)
-		goto out;
-
-	/*
-	 * Enable broadcast if necessary.
-	 */
-	if (from_p) {
-		int on = 1;
-		sopt.sopt_name = SO_BROADCAST;
-		sopt.sopt_val = &on;
-		sopt.sopt_valsize = sizeof on;
-		if ((error = sosetopt(so, &sopt)) != 0)
-			goto out;
-	}
-
-	/*
-	 * Bind the local endpoint to a reserved port,
-	 * because some NFS servers refuse requests from
-	 * non-reserved (non-privileged) ports.
-	 */
-	sin = &ssin;
-	bzero(sin, sizeof *sin);
-	sin->sin_len = sizeof(*sin);
-	sin->sin_family = AF_INET;
-	sin->sin_addr.s_addr = INADDR_ANY;
-	tport = IPPORT_RESERVED;
-	do {
-		tport--;
-		sin->sin_port = htons(tport);
-		error = sobind(so, (struct sockaddr *)sin, td);
-	} while (error == EADDRINUSE &&
-			 tport > IPPORT_RESERVED / 2);
-	if (error) {
-		printf("bind failed\n");
-		goto out;
-	}
-
-	/*
-	 * Setup socket address for the server.
-	 */
-
-	/*
-	 * Prepend RPC message header.
-	 */
-	mhead = m_gethdr(M_TRYWAIT, MT_DATA);
-	mhead->m_next = *data;
-	call = mtod(mhead, struct rpc_call *);
-	mhead->m_len = sizeof(*call);
-	bzero((caddr_t)call, sizeof(*call));
-	/* rpc_call part */
-	xid++;
-	call->rp_xid = txdr_unsigned(xid);
-	/* call->rp_direction = 0; */
-	call->rp_rpcvers = txdr_unsigned(2);
-	call->rp_prog = txdr_unsigned(prog);
-	call->rp_vers = txdr_unsigned(vers);
-	call->rp_proc = txdr_unsigned(func);
-	/* rpc_auth part (auth_unix as root) */
-	call->rpc_auth.authtype = txdr_unsigned(RPCAUTH_UNIX);
-	call->rpc_auth.authlen  = txdr_unsigned(sizeof(struct auth_unix));
-	/* rpc_verf part (auth_null) */
-	call->rpc_verf.authtype = 0;
-	call->rpc_verf.authlen  = 0;
-
-	/*
-	 * Setup packet header
-	 */
-	len = 0;
-	m = mhead;
-	while (m) {
-		len += m->m_len;
-		m = m->m_next;
-	}
-	mhead->m_pkthdr.len = len;
-	mhead->m_pkthdr.rcvif = NULL;
-
-	/*
-	 * Send it, repeatedly, until a reply is received,
-	 * but delay each re-send by an increasing amount.
-	 * If the delay hits the maximum, start complaining.
-	 */
-	timo = 0;
-	for (;;) {
-		/* Send RPC request (or re-send). */
-		m = m_copym(mhead, 0, M_COPYALL, M_TRYWAIT);
-		if (m == NULL) {
-			error = ENOBUFS;
-			goto out;
-		}
-		error = sosend(so, (struct sockaddr *)sa, NULL, m,
-			       NULL, 0, td);
-		if (error) {
-			printf("krpc_call: sosend: %d\n", error);
-			goto out;
-		}
-		m = NULL;
-
-		/* Determine new timeout. */
-		if (timo < MAX_RESEND_DELAY)
-			timo++;
-		else {
-			saddr = ntohl(sa->sin_addr.s_addr);
-			printf("RPC timeout for server %d.%d.%d.%d\n",
-			       (saddr >> 24) & 255,
-			       (saddr >> 16) & 255,
-			       (saddr >> 8) & 255,
-			       saddr & 255);
-		}
-
-		/*
-		 * Wait for up to timo seconds for a reply.
-		 * The socket receive timeout was set to 1 second.
-		 */
-		secs = timo;
-		while (secs > 0) {
-			if (from) {
-				FREE(from, M_SONAME);
-				from = NULL;
-			}
-			if (m) {
-				m_freem(m);
-				m = NULL;
-			}
-			bzero(&auio,sizeof(auio));
-			auio.uio_resid = len = 1<<16;
-			rcvflg = 0;
-			error = soreceive(so, &from, &auio, &m, NULL, &rcvflg);
-			if (error == EWOULDBLOCK) {
-				secs--;
-				continue;
-			}
-			if (error)
-				goto out;
-			len -= auio.uio_resid;
-
-			/* Does the reply contain at least a header? */
-			if (len < MIN_REPLY_HDR)
-				continue;
-			if (m->m_len < MIN_REPLY_HDR)
-				continue;
-			reply = mtod(m, struct rpc_reply *);
-
-			/* Is it the right reply? */
-			if (reply->rp_direction != txdr_unsigned(RPC_REPLY))
-				continue;
-
-			if (reply->rp_xid != txdr_unsigned(xid))
-				continue;
-
-			/* Was RPC accepted? (authorization OK) */
-			if (reply->rp_astatus != 0) {
-				error = fxdr_unsigned(u_int32_t, reply->rp_errno);
-				printf("rpc denied, error=%d\n", error);
-				continue;
-			}
-
-			/* Did the call succeed? */
-			if (reply->rp_status != 0) {
-				error = fxdr_unsigned(u_int32_t, reply->rp_status);
-				if (error == RPC_PROGMISMATCH) {
-				  error = EBADRPC;
-				  goto out;
-				}
-				printf("rpc denied, status=%d\n", error);
-				continue;
-			}
-
-			goto gotreply;	/* break two levels */
-
-		} /* while secs */
-	} /* forever send/receive */
-
-	error = ETIMEDOUT;
-	goto out;
-
- gotreply:
-
-	/*
-	 * Get RPC reply header into first mbuf,
-	 * get its length, then strip it off.
-	 */
-	len = sizeof(*reply);
-	if (m->m_len < len) {
-		m = m_pullup(m, len);
-		if (m == NULL) {
-			error = ENOBUFS;
-			goto out;
-		}
-	}
-	reply = mtod(m, struct rpc_reply *);
-	if (reply->rp_auth.authtype != 0) {
-		len += fxdr_unsigned(u_int32_t, reply->rp_auth.authlen);
-		len = (len + 3) & ~3; /* XXX? */
-	}
-	m_adj(m, len);
-
-	/* result */
-	*data = m;
-	if (from_p) {
-		*from_p = from;
-		from = NULL;
-	}
-
- out:
-	if (mhead) m_freem(mhead);
-	if (from) free(from, M_SONAME);
-	soclose(so);
-	return error;
-}
-
-/*
- * eXternal Data Representation routines.
- * (but with non-standard args...)
- */
-
-/*
- * String representation for RPC.
- */
-struct xdr_string {
-	u_int32_t len;		/* length without null or padding */
-	char data[4];	/* data (longer, of course) */
-    /* data is padded to a long-word boundary */
-};
-
-struct mbuf *
-xdr_string_encode(str, len)
-	char *str;
-	int len;
-{
-	struct mbuf *m;
-	struct xdr_string *xs;
-	int dlen;	/* padded string length */
-	int mlen;	/* message length */
-
-	dlen = (len + 3) & ~3;
-	mlen = dlen + 4;
-
-	if (mlen > MCLBYTES)		/* If too big, we just can't do it. */
-		return (NULL);
-
-	m = m_get(M_TRYWAIT, MT_DATA);
-	if (mlen > MLEN) {
-		MCLGET(m, M_TRYWAIT);
-		if ((m->m_flags & M_EXT) == 0) {
-			(void) m_free(m);	/* There can be only one. */
-			return (NULL);
-		}
-	}
-	xs = mtod(m, struct xdr_string *);
-	m->m_len = mlen;
-	xs->len = txdr_unsigned(len);
-	bcopy(str, xs->data, len);
-	return (m);
-}
author	peter <peter@FreeBSD.org>	2001-09-18 23:32:09 +0000
committer	peter <peter@FreeBSD.org>	2001-09-18 23:32:09 +0000
commit	85182a8d785d189f1e845c7d66810e3977ac161b (patch)
tree	626c88f61c1e52e9cd18eaec61b54aaaee5d3bfc /sys/nfs/krpc_subr.c
parent	abe9cf18de01077e00cd2ee3d47363af647e65e4 (diff)
download	FreeBSD-src-85182a8d785d189f1e845c7d66810e3977ac161b.zip FreeBSD-src-85182a8d785d189f1e845c7d66810e3977ac161b.tar.gz