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Diffstat (limited to 'sys/nfsclient/krpc_subr.c')
-rw-r--r--sys/nfsclient/krpc_subr.c481
1 files changed, 0 insertions, 481 deletions
diff --git a/sys/nfsclient/krpc_subr.c b/sys/nfsclient/krpc_subr.c
deleted file mode 100644
index 2127d46a6d29..000000000000
--- a/sys/nfsclient/krpc_subr.c
+++ /dev/null
@@ -1,481 +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, procp)
- struct sockaddr_in *sin; /* server address */
- u_int prog, vers; /* host order */
- u_int16_t *portp; /* network order */
- struct proc *procp;
-{
- 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_WAIT, 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, procp);
- 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, procp)
- struct sockaddr_in *sa;
- u_int prog, vers, func;
- struct mbuf **data; /* input/output */
- struct sockaddr **from_p; /* output */
- struct proc *procp;
-{
- 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;
-
- /*
- * 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, procp)))
- 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, procp);
- } 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_WAIT, 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_WAIT);
- if (m == NULL) {
- error = ENOBUFS;
- goto out;
- }
- error = sosend(so, (struct sockaddr *)sa, NULL, m,
- NULL, 0, 0);
- if (error) {
- printf("krpc_call: sosend: %d\n", error);
- goto out;
- }
- m = NULL;
-
- /* Determine new timeout. */
- if (timo < MAX_RESEND_DELAY)
- timo++;
- else
- printf("RPC timeout for server 0x%lx\n",
- (u_long)ntohl(sa->sin_addr.s_addr));
-
- /*
- * 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_WAIT, MT_DATA);
- if (mlen > MLEN) {
- MCLGET(m, M_WAIT);
- 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);
-}
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