896 lines
22 KiB
C
896 lines
22 KiB
C
/*
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* Copyright (c) 1992, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Rick Macklem at The University of Guelph.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1992, 1993, 1994\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)mount_nfs.c 8.11 (Berkeley) 5/4/95";
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#endif
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <sys/syslog.h>
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#include <rpc/rpc.h>
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#include <rpc/pmap_clnt.h>
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#include <rpc/pmap_prot.h>
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#ifdef NFSKERB
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#include <kerberosIV/des.h>
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#include <kerberosIV/krb.h>
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#endif
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#include <nfs/rpcv2.h>
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#include <nfs/nfsproto.h>
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#include <nfs/nfs.h>
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#include <nfs/nqnfs.h>
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#include <arpa/inet.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <strings.h>
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#include <sysexits.h>
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#include <unistd.h>
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#include "mntopts.h"
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#include "mounttab.h"
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#define ALTF_BG 0x1
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#define ALTF_NOCONN 0x2
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#define ALTF_DUMBTIMR 0x4
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#define ALTF_INTR 0x8
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#define ALTF_KERB 0x10
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#define ALTF_NFSV3 0x20
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#define ALTF_RDIRPLUS 0x40
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#define ALTF_MNTUDP 0x80
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#define ALTF_RESVPORT 0x100
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#define ALTF_SEQPACKET 0x200
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#define ALTF_NQNFS 0x400
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#define ALTF_SOFT 0x800
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#define ALTF_TCP 0x1000
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#define ALTF_PORT 0x2000
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#define ALTF_NFSV2 0x4000
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#define ALTF_ACREGMIN 0x8000
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#define ALTF_ACREGMAX 0x10000
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#define ALTF_ACDIRMIN 0x20000
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#define ALTF_ACDIRMAX 0x40000
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struct mntopt mopts[] = {
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MOPT_STDOPTS,
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MOPT_FORCE,
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MOPT_UPDATE,
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MOPT_ASYNC,
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{ "bg", 0, ALTF_BG, 1 },
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{ "conn", 1, ALTF_NOCONN, 1 },
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{ "dumbtimer", 0, ALTF_DUMBTIMR, 1 },
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{ "intr", 0, ALTF_INTR, 1 },
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#ifdef NFSKERB
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{ "kerb", 0, ALTF_KERB, 1 },
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#endif
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{ "nfsv3", 0, ALTF_NFSV3, 1 },
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{ "rdirplus", 0, ALTF_RDIRPLUS, 1 },
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{ "mntudp", 0, ALTF_MNTUDP, 1 },
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{ "resvport", 0, ALTF_RESVPORT, 1 },
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{ "nqnfs", 0, ALTF_NQNFS, 1 },
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{ "soft", 0, ALTF_SOFT, 1 },
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{ "tcp", 0, ALTF_TCP, 1 },
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{ "port=", 0, ALTF_PORT, 1 },
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{ "nfsv2", 0, ALTF_NFSV2, 1 },
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{ "acregmin=", 0, ALTF_ACREGMIN, 1 },
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{ "acregmax=", 0, ALTF_ACREGMAX, 1 },
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{ "acdirmin=", 0, ALTF_ACDIRMIN, 1 },
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{ "acdirmax=", 0, ALTF_ACDIRMAX, 1 },
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{ NULL }
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};
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struct nfs_args nfsdefargs = {
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NFS_ARGSVERSION,
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(struct sockaddr *)0,
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sizeof (struct sockaddr_in),
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SOCK_DGRAM,
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0,
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(u_char *)0,
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0,
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NFSMNT_RESVPORT,
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NFS_WSIZE,
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NFS_RSIZE,
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NFS_READDIRSIZE,
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10,
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NFS_RETRANS,
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NFS_MAXGRPS,
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NFS_DEFRAHEAD,
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NQ_DEFLEASE,
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NQ_DEADTHRESH,
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(char *)0,
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/* args version 4 */
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NFS_MINATTRTIMO,
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NFS_MAXATTRTIMO,
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NFS_MINDIRATTRTIMO,
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NFS_MAXDIRATTRTIMO,
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};
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struct nfhret {
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u_long stat;
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long vers;
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long auth;
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long fhsize;
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u_char nfh[NFSX_V3FHMAX];
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};
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#define DEF_RETRY 10000
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#define BGRND 1
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#define ISBGRND 2
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int retrycnt = DEF_RETRY;
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int opflags = 0;
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int nfsproto = IPPROTO_UDP;
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int mnttcp_ok = 1;
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u_short port_no = 0;
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enum {
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ANY,
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V2,
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V3
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} mountmode = ANY;
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#ifdef NFSKERB
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char inst[INST_SZ];
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char realm[REALM_SZ];
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struct {
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u_long kind;
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KTEXT_ST kt;
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} ktick;
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struct nfsrpc_nickverf kverf;
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struct nfsrpc_fullblock kin, kout;
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NFSKERBKEY_T kivec;
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CREDENTIALS kcr;
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struct timeval ktv;
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NFSKERBKEYSCHED_T kerb_keysched;
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#endif
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int getnfsargs __P((char *, struct nfs_args *));
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void set_rpc_maxgrouplist __P((int));
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void usage __P((void)) __dead2;
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int xdr_dir __P((XDR *, char *));
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int xdr_fh __P((XDR *, struct nfhret *));
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/*
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* Used to set mount flags with getmntopts. Call with dir=TRUE to
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* initialize altflags from the current mount flags. Call with
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* dir=FALSE to update mount flags with the new value of altflags after
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* the call to getmntopts.
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*/
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static void
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set_flags(int* altflags, int* nfsflags, int dir)
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{
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#define F2(af, nf) \
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if (dir) { \
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if (*nfsflags & NFSMNT_##nf) \
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*altflags |= ALTF_##af; \
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else \
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*altflags &= ~ALTF_##af; \
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} else { \
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if (*altflags & ALTF_##af) \
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*nfsflags |= NFSMNT_##nf; \
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else \
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*nfsflags &= ~NFSMNT_##nf; \
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}
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#define F(f) F2(f,f)
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F(NOCONN);
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F(DUMBTIMR);
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F2(INTR, INT);
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#ifdef NFSKERB
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F(KERB);
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#endif
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F(RDIRPLUS);
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F(RESVPORT);
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F(NQNFS);
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F(SOFT);
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#undef F
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#undef F2
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}
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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register int c;
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register struct nfs_args *nfsargsp;
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struct nfs_args nfsargs;
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struct nfsd_cargs ncd;
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int mntflags, altflags, i, nfssvc_flag, num;
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char *name, *p, *spec;
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char mntpath[MAXPATHLEN];
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struct vfsconf vfc;
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int error = 0;
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#ifdef NFSKERB
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uid_t last_ruid;
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last_ruid = -1;
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(void)strcpy(realm, KRB_REALM);
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if (sizeof (struct nfsrpc_nickverf) != RPCX_NICKVERF ||
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sizeof (struct nfsrpc_fullblock) != RPCX_FULLBLOCK ||
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((char *)&ktick.kt) - ((char *)&ktick) != NFSX_UNSIGNED ||
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((char *)ktick.kt.dat) - ((char *)&ktick) != 2 * NFSX_UNSIGNED)
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fprintf(stderr, "Yikes! NFSKERB structs not packed!!\n");
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#endif /* NFSKERB */
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retrycnt = DEF_RETRY;
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mntflags = 0;
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altflags = 0;
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nfsargs = nfsdefargs;
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nfsargsp = &nfsargs;
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while ((c = getopt(argc, argv,
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"23a:bcdD:g:I:iKL:lm:No:PpqR:r:sTt:w:x:U")) != -1)
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switch (c) {
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case '2':
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mountmode = V2;
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break;
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case '3':
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mountmode = V3;
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break;
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case 'a':
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num = strtol(optarg, &p, 10);
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if (*p || num < 0)
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errx(1, "illegal -a value -- %s", optarg);
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nfsargsp->readahead = num;
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nfsargsp->flags |= NFSMNT_READAHEAD;
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break;
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case 'b':
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opflags |= BGRND;
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break;
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case 'c':
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nfsargsp->flags |= NFSMNT_NOCONN;
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break;
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case 'D':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -D value -- %s", optarg);
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nfsargsp->deadthresh = num;
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nfsargsp->flags |= NFSMNT_DEADTHRESH;
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break;
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case 'd':
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nfsargsp->flags |= NFSMNT_DUMBTIMR;
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break;
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case 'g':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -g value -- %s", optarg);
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#ifdef __FreeBSD__
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set_rpc_maxgrouplist(num);
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#endif
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nfsargsp->maxgrouplist = num;
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nfsargsp->flags |= NFSMNT_MAXGRPS;
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break;
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case 'I':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -I value -- %s", optarg);
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nfsargsp->readdirsize = num;
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nfsargsp->flags |= NFSMNT_READDIRSIZE;
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break;
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case 'i':
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nfsargsp->flags |= NFSMNT_INT;
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break;
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#ifdef NFSKERB
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case 'K':
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nfsargsp->flags |= NFSMNT_KERB;
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break;
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#endif
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case 'L':
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num = strtol(optarg, &p, 10);
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if (*p || num < 2)
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errx(1, "illegal -L value -- %s", optarg);
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nfsargsp->leaseterm = num;
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nfsargsp->flags |= NFSMNT_LEASETERM;
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break;
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case 'l':
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nfsargsp->flags |= NFSMNT_RDIRPLUS;
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break;
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#ifdef NFSKERB
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case 'm':
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(void)strncpy(realm, optarg, REALM_SZ - 1);
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realm[REALM_SZ - 1] = '\0';
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break;
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#endif
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case 'N':
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nfsargsp->flags &= ~NFSMNT_RESVPORT;
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break;
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case 'o':
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altflags = 0;
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set_flags(&altflags, &nfsargsp->flags, TRUE);
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if (mountmode == V2)
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altflags |= ALTF_NFSV2;
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else if (mountmode == V3)
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altflags |= ALTF_NFSV3;
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getmntopts(optarg, mopts, &mntflags, &altflags);
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set_flags(&altflags, &nfsargsp->flags, FALSE);
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/*
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* Handle altflags which don't map directly to
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* mount flags.
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*/
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if(altflags & ALTF_BG)
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opflags |= BGRND;
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if(altflags & ALTF_MNTUDP)
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mnttcp_ok = 0;
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if(altflags & ALTF_TCP) {
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nfsargsp->sotype = SOCK_STREAM;
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nfsproto = IPPROTO_TCP;
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}
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if(altflags & ALTF_PORT)
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port_no = atoi(strstr(optarg, "port=") + 5);
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mountmode = ANY;
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if(altflags & ALTF_NFSV2)
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mountmode = V2;
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if(altflags & ALTF_NFSV3)
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mountmode = V3;
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if(altflags & ALTF_ACREGMIN)
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nfsargsp->acregmin = atoi(strstr(optarg,
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"acregmin=") + 9);
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if(altflags & ALTF_ACREGMAX)
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nfsargsp->acregmax = atoi(strstr(optarg,
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"acregmax=") + 9);
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if(altflags & ALTF_ACDIRMIN)
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nfsargsp->acdirmin = atoi(strstr(optarg,
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"acdirmin=") + 9);
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if(altflags & ALTF_ACDIRMAX)
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nfsargsp->acdirmax = atoi(strstr(optarg,
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"acdirmax=") + 9);
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break;
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case 'P':
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/* obsolete for NFSMNT_RESVPORT, now default */
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break;
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case 'q':
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mountmode = V3;
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nfsargsp->flags |= NFSMNT_NQNFS;
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break;
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case 'R':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -R value -- %s", optarg);
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retrycnt = num;
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break;
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case 'r':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -r value -- %s", optarg);
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nfsargsp->rsize = num;
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nfsargsp->flags |= NFSMNT_RSIZE;
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break;
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case 's':
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nfsargsp->flags |= NFSMNT_SOFT;
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break;
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case 'T':
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nfsargsp->sotype = SOCK_STREAM;
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nfsproto = IPPROTO_TCP;
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break;
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case 't':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -t value -- %s", optarg);
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nfsargsp->timeo = num;
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nfsargsp->flags |= NFSMNT_TIMEO;
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break;
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case 'w':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -w value -- %s", optarg);
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nfsargsp->wsize = num;
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nfsargsp->flags |= NFSMNT_WSIZE;
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break;
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case 'x':
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num = strtol(optarg, &p, 10);
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if (*p || num <= 0)
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errx(1, "illegal -x value -- %s", optarg);
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nfsargsp->retrans = num;
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nfsargsp->flags |= NFSMNT_RETRANS;
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break;
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case 'U':
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mnttcp_ok = 0;
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break;
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default:
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usage();
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break;
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}
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argc -= optind;
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argv += optind;
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if (argc != 2) {
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usage();
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/* NOTREACHED */
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}
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spec = *argv++;
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name = *argv;
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if (!getnfsargs(spec, nfsargsp))
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exit(1);
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/* resolve the mountpoint with realpath(3) */
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(void)checkpath(name, mntpath);
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#ifdef __FreeBSD__
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error = getvfsbyname("nfs", &vfc);
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if (error && vfsisloadable("nfs")) {
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if(vfsload("nfs"))
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err(EX_OSERR, "vfsload(nfs)");
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endvfsent(); /* clear cache */
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error = getvfsbyname("nfs", &vfc);
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}
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if (error)
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errx(EX_OSERR, "nfs filesystem is not available");
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if (mount(vfc.vfc_name, mntpath, mntflags, nfsargsp))
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err(1, "%s", mntpath);
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#else
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if (mount("nfs", mntpath, mntflags, nfsargsp))
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err(1, "%s", mntpath);
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#endif
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if (nfsargsp->flags & (NFSMNT_NQNFS | NFSMNT_KERB)) {
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if ((opflags & ISBGRND) == 0) {
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if ((i = fork())) {
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if (i == -1)
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err(1, "nqnfs 1");
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exit(0);
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}
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(void) setsid();
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(void) close(STDIN_FILENO);
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(void) close(STDOUT_FILENO);
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(void) close(STDERR_FILENO);
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(void) chdir("/");
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}
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openlog("mount_nfs:", LOG_PID, LOG_DAEMON);
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nfssvc_flag = NFSSVC_MNTD;
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ncd.ncd_dirp = mntpath;
|
|
while (nfssvc(nfssvc_flag, (caddr_t)&ncd) < 0) {
|
|
if (errno != ENEEDAUTH) {
|
|
syslog(LOG_ERR, "nfssvc err %m");
|
|
continue;
|
|
}
|
|
nfssvc_flag =
|
|
NFSSVC_MNTD | NFSSVC_GOTAUTH | NFSSVC_AUTHINFAIL;
|
|
#ifdef NFSKERB
|
|
/*
|
|
* Set up as ncd_authuid for the kerberos call.
|
|
* Must set ruid to ncd_authuid and reset the
|
|
* ticket name iff ncd_authuid is not the same
|
|
* as last time, so that the right ticket file
|
|
* is found.
|
|
* Get the Kerberos credential structure so that
|
|
* we have the session key and get a ticket for
|
|
* this uid.
|
|
* For more info see the IETF Draft "Authentication
|
|
* in ONC RPC".
|
|
*/
|
|
if (ncd.ncd_authuid != last_ruid) {
|
|
char buf[512];
|
|
(void)sprintf(buf, "%s%d",
|
|
TKT_ROOT, ncd.ncd_authuid);
|
|
krb_set_tkt_string(buf);
|
|
last_ruid = ncd.ncd_authuid;
|
|
}
|
|
setreuid(ncd.ncd_authuid, 0);
|
|
kret = krb_get_cred(NFS_KERBSRV, inst, realm, &kcr);
|
|
if (kret == RET_NOTKT) {
|
|
kret = get_ad_tkt(NFS_KERBSRV, inst, realm,
|
|
DEFAULT_TKT_LIFE);
|
|
if (kret == KSUCCESS)
|
|
kret = krb_get_cred(NFS_KERBSRV, inst, realm,
|
|
&kcr);
|
|
}
|
|
if (kret == KSUCCESS)
|
|
kret = krb_mk_req(&ktick.kt, NFS_KERBSRV, inst,
|
|
realm, 0);
|
|
|
|
/*
|
|
* Fill in the AKN_FULLNAME authenticator and verifier.
|
|
* Along with the Kerberos ticket, we need to build
|
|
* the timestamp verifier and encrypt it in CBC mode.
|
|
*/
|
|
if (kret == KSUCCESS &&
|
|
ktick.kt.length <= (RPCAUTH_MAXSIZ-3*NFSX_UNSIGNED)
|
|
&& gettimeofday(&ktv, (struct timezone *)0) == 0) {
|
|
ncd.ncd_authtype = RPCAUTH_KERB4;
|
|
ncd.ncd_authstr = (u_char *)&ktick;
|
|
ncd.ncd_authlen = nfsm_rndup(ktick.kt.length) +
|
|
3 * NFSX_UNSIGNED;
|
|
ncd.ncd_verfstr = (u_char *)&kverf;
|
|
ncd.ncd_verflen = sizeof (kverf);
|
|
memmove(ncd.ncd_key, kcr.session,
|
|
sizeof (kcr.session));
|
|
kin.t1 = htonl(ktv.tv_sec);
|
|
kin.t2 = htonl(ktv.tv_usec);
|
|
kin.w1 = htonl(NFS_KERBTTL);
|
|
kin.w2 = htonl(NFS_KERBTTL - 1);
|
|
bzero((caddr_t)kivec, sizeof (kivec));
|
|
|
|
/*
|
|
* Encrypt kin in CBC mode using the session
|
|
* key in kcr.
|
|
*/
|
|
XXX
|
|
|
|
/*
|
|
* Finally, fill the timestamp verifier into the
|
|
* authenticator and verifier.
|
|
*/
|
|
ktick.kind = htonl(RPCAKN_FULLNAME);
|
|
kverf.kind = htonl(RPCAKN_FULLNAME);
|
|
NFS_KERBW1(ktick.kt) = kout.w1;
|
|
ktick.kt.length = htonl(ktick.kt.length);
|
|
kverf.verf.t1 = kout.t1;
|
|
kverf.verf.t2 = kout.t2;
|
|
kverf.verf.w2 = kout.w2;
|
|
nfssvc_flag = NFSSVC_MNTD | NFSSVC_GOTAUTH;
|
|
}
|
|
setreuid(0, 0);
|
|
#endif /* NFSKERB */
|
|
}
|
|
}
|
|
exit(0);
|
|
}
|
|
|
|
/*
|
|
* Return RPC_SUCCESS if server responds.
|
|
*/
|
|
enum clnt_stat
|
|
pingnfsserver(addr, version, sotype)
|
|
struct sockaddr_in *addr;
|
|
int version;
|
|
int sotype;
|
|
{
|
|
struct sockaddr_in sin;
|
|
int tport;
|
|
CLIENT *clp;
|
|
int so = RPC_ANYSOCK;
|
|
enum clnt_stat stat;
|
|
struct timeval pertry, try;
|
|
|
|
sin = *addr;
|
|
|
|
if ((tport = port_no ? port_no :
|
|
pmap_getport(&sin, RPCPROG_NFS, version, nfsproto)) == 0) {
|
|
return rpc_createerr.cf_stat;
|
|
}
|
|
|
|
sin.sin_port = htons(tport);
|
|
|
|
pertry.tv_sec = 10;
|
|
pertry.tv_usec = 0;
|
|
if (sotype == SOCK_STREAM)
|
|
clp = clnttcp_create(&sin, RPCPROG_NFS, version,
|
|
&so, 0, 0);
|
|
else
|
|
clp = clntudp_create(&sin, RPCPROG_NFS, version,
|
|
pertry, &so);
|
|
if (clp == NULL)
|
|
return rpc_createerr.cf_stat;
|
|
|
|
try.tv_sec = 10;
|
|
try.tv_usec = 0;
|
|
stat = clnt_call(clp, NFSPROC_NULL,
|
|
xdr_void, NULL, xdr_void, NULL, try);
|
|
|
|
clnt_destroy(clp);
|
|
|
|
return stat;
|
|
}
|
|
|
|
int
|
|
getnfsargs(spec, nfsargsp)
|
|
char *spec;
|
|
struct nfs_args *nfsargsp;
|
|
{
|
|
register CLIENT *clp;
|
|
struct hostent *hp;
|
|
static struct sockaddr_in saddr;
|
|
struct timeval pertry, try;
|
|
enum clnt_stat clnt_stat;
|
|
int so = RPC_ANYSOCK, i, nfsvers, mntvers, orgcnt, speclen;
|
|
char *hostp, *delimp;
|
|
#ifdef NFSKERB
|
|
char *cp;
|
|
#endif
|
|
u_short tport;
|
|
size_t len;
|
|
static struct nfhret nfhret;
|
|
static char nam[MNAMELEN + 1];
|
|
|
|
tport = 0;
|
|
|
|
if ((delimp = strchr(spec, ':')) != NULL) {
|
|
hostp = spec;
|
|
spec = delimp + 1;
|
|
} else if ((delimp = strrchr(spec, '@')) != NULL) {
|
|
warnx("path@server syntax is deprecated, use server:path");
|
|
hostp = delimp + 1;
|
|
} else {
|
|
warnx("no <host>:<dirpath> nfs-name");
|
|
return (0);
|
|
}
|
|
|
|
*delimp = '\0';
|
|
|
|
/*
|
|
* If there has been a trailing slash at mounttime it seems
|
|
* that some mountd implementations fail to remove the mount
|
|
* entries from their mountlist while unmounting.
|
|
*/
|
|
for (speclen = strlen(spec);
|
|
speclen > 1 && spec[speclen - 1] == '/';
|
|
speclen--)
|
|
spec[speclen - 1] = '\0';
|
|
if (strlen(hostp) + strlen(spec) + 1 > MNAMELEN) {
|
|
warnx("%s:%s: %s", hostp, spec, strerror(ENAMETOOLONG));
|
|
return (0);
|
|
}
|
|
/* Make both '@' and ':' notations equal */
|
|
if (*hostp != '\0') {
|
|
len = strlen(hostp);
|
|
memmove(nam, hostp, len);
|
|
nam[len] = ':';
|
|
memmove(nam + len + 1, spec, speclen);
|
|
nam[len + speclen + 1] = '\0';
|
|
}
|
|
|
|
/*
|
|
* Handle an internet host address and reverse resolve it if
|
|
* doing Kerberos.
|
|
*/
|
|
if (isdigit(*hostp)) {
|
|
if ((saddr.sin_addr.s_addr = inet_addr(hostp)) == -1) {
|
|
warnx("bad net address %s", hostp);
|
|
return (0);
|
|
}
|
|
} else if ((hp = gethostbyname(hostp)) != NULL)
|
|
memmove(&saddr.sin_addr, hp->h_addr,
|
|
MIN(hp->h_length, sizeof(saddr.sin_addr)));
|
|
else {
|
|
warnx("can't get net id for host");
|
|
return (0);
|
|
}
|
|
#ifdef NFSKERB
|
|
if ((nfsargsp->flags & NFSMNT_KERB)) {
|
|
if ((hp = gethostbyaddr((char *)&saddr.sin_addr.s_addr,
|
|
sizeof (u_long), AF_INET)) == (struct hostent *)0) {
|
|
warnx("can't reverse resolve net address");
|
|
return (0);
|
|
}
|
|
memmove(&saddr.sin_addr, hp->h_addr,
|
|
MIN(hp->h_length, sizeof(saddr.sin_addr)));
|
|
strncpy(inst, hp->h_name, INST_SZ);
|
|
inst[INST_SZ - 1] = '\0';
|
|
if (cp = strchr(inst, '.'))
|
|
*cp = '\0';
|
|
}
|
|
#endif /* NFSKERB */
|
|
|
|
orgcnt = retrycnt;
|
|
tryagain:
|
|
if (mountmode == ANY || mountmode == V3) {
|
|
nfsvers = 3;
|
|
mntvers = 3;
|
|
nfsargsp->flags |= NFSMNT_NFSV3;
|
|
} else {
|
|
nfsvers = 2;
|
|
mntvers = 1;
|
|
nfsargsp->flags &= ~NFSMNT_NFSV3;
|
|
}
|
|
nfhret.stat = EACCES; /* Mark not yet successful */
|
|
while (retrycnt > 0) {
|
|
saddr.sin_family = AF_INET;
|
|
saddr.sin_port = htons(PMAPPORT);
|
|
if ((tport = port_no ? port_no :
|
|
pmap_getport(&saddr, RPCPROG_NFS,
|
|
nfsvers, nfsproto)) == 0) {
|
|
if ((opflags & ISBGRND) == 0)
|
|
clnt_pcreateerror("NFS Portmap");
|
|
} else {
|
|
/*
|
|
* First ping the nfs server to see if it supports
|
|
* the version of the protocol we want to use.
|
|
*/
|
|
clnt_stat = pingnfsserver(&saddr, nfsvers,
|
|
nfsargsp->sotype);
|
|
if (clnt_stat == RPC_PROGVERSMISMATCH) {
|
|
if (mountmode == ANY) {
|
|
mountmode = V2;
|
|
goto tryagain;
|
|
} else {
|
|
errx(1, "can't contact NFS server");
|
|
}
|
|
}
|
|
saddr.sin_port = 0;
|
|
pertry.tv_sec = 10;
|
|
pertry.tv_usec = 0;
|
|
if (mnttcp_ok && nfsargsp->sotype == SOCK_STREAM)
|
|
clp = clnttcp_create(&saddr, RPCPROG_MNT, mntvers,
|
|
&so, 0, 0);
|
|
else
|
|
clp = clntudp_create(&saddr, RPCPROG_MNT, mntvers,
|
|
pertry, &so);
|
|
if (clp == NULL) {
|
|
if ((opflags & ISBGRND) == 0)
|
|
clnt_pcreateerror("Cannot MNT RPC");
|
|
} else {
|
|
clp->cl_auth = authunix_create_default();
|
|
try.tv_sec = 10;
|
|
try.tv_usec = 0;
|
|
if (nfsargsp->flags & NFSMNT_KERB)
|
|
nfhret.auth = RPCAUTH_KERB4;
|
|
else
|
|
nfhret.auth = RPCAUTH_UNIX;
|
|
nfhret.vers = mntvers;
|
|
clnt_stat = clnt_call(clp, RPCMNT_MOUNT,
|
|
xdr_dir, spec, xdr_fh, &nfhret, try);
|
|
if (clnt_stat != RPC_SUCCESS) {
|
|
if (clnt_stat == RPC_PROGVERSMISMATCH) {
|
|
if (mountmode == ANY) {
|
|
mountmode = V2;
|
|
goto tryagain;
|
|
} else {
|
|
errx(1, "%s",
|
|
clnt_sperror(clp, "MNT RPC"));
|
|
}
|
|
}
|
|
if ((opflags & ISBGRND) == 0)
|
|
warnx("%s", clnt_sperror(clp,
|
|
"bad MNT RPC"));
|
|
} else {
|
|
auth_destroy(clp->cl_auth);
|
|
clnt_destroy(clp);
|
|
retrycnt = 0;
|
|
}
|
|
}
|
|
}
|
|
if (--retrycnt > 0) {
|
|
if (opflags & BGRND) {
|
|
warnx("Cannot immediately mount %s:%s, "
|
|
"backgrounding", hostp, spec);
|
|
opflags &= ~BGRND;
|
|
if ((i = fork())) {
|
|
if (i == -1)
|
|
err(1, "nqnfs 2");
|
|
exit(0);
|
|
}
|
|
(void) setsid();
|
|
(void) close(STDIN_FILENO);
|
|
(void) close(STDOUT_FILENO);
|
|
(void) close(STDERR_FILENO);
|
|
(void) chdir("/");
|
|
opflags |= ISBGRND;
|
|
}
|
|
sleep(60);
|
|
}
|
|
}
|
|
if (nfhret.stat) {
|
|
if (opflags & ISBGRND)
|
|
exit(1);
|
|
warnx("can't access %s: %s", spec, strerror(nfhret.stat));
|
|
return (0);
|
|
}
|
|
saddr.sin_port = htons(tport);
|
|
{
|
|
nfsargsp->addr = (struct sockaddr *) &saddr;
|
|
nfsargsp->addrlen = sizeof (saddr);
|
|
}
|
|
nfsargsp->fh = nfhret.nfh;
|
|
nfsargsp->fhsize = nfhret.fhsize;
|
|
nfsargsp->hostname = nam;
|
|
/* Add mounted filesystem to PATH_MOUNTTAB */
|
|
if (!add_mtab(hostp, spec))
|
|
warnx("can't update %s for %s:%s", PATH_MOUNTTAB, hostp, spec);
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* xdr routines for mount rpc's
|
|
*/
|
|
int
|
|
xdr_dir(xdrsp, dirp)
|
|
XDR *xdrsp;
|
|
char *dirp;
|
|
{
|
|
return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN));
|
|
}
|
|
|
|
int
|
|
xdr_fh(xdrsp, np)
|
|
XDR *xdrsp;
|
|
register struct nfhret *np;
|
|
{
|
|
register int i;
|
|
long auth, authcnt, authfnd = 0;
|
|
|
|
if (!xdr_u_long(xdrsp, &np->stat))
|
|
return (0);
|
|
if (np->stat)
|
|
return (1);
|
|
switch (np->vers) {
|
|
case 1:
|
|
np->fhsize = NFSX_V2FH;
|
|
return (xdr_opaque(xdrsp, (caddr_t)np->nfh, NFSX_V2FH));
|
|
case 3:
|
|
if (!xdr_long(xdrsp, &np->fhsize))
|
|
return (0);
|
|
if (np->fhsize <= 0 || np->fhsize > NFSX_V3FHMAX)
|
|
return (0);
|
|
if (!xdr_opaque(xdrsp, (caddr_t)np->nfh, np->fhsize))
|
|
return (0);
|
|
if (!xdr_long(xdrsp, &authcnt))
|
|
return (0);
|
|
for (i = 0; i < authcnt; i++) {
|
|
if (!xdr_long(xdrsp, &auth))
|
|
return (0);
|
|
if (auth == np->auth)
|
|
authfnd++;
|
|
}
|
|
/*
|
|
* Some servers, such as DEC's OSF/1 return a nil authenticator
|
|
* list to indicate RPCAUTH_UNIX.
|
|
*/
|
|
if (!authfnd && (authcnt > 0 || np->auth != RPCAUTH_UNIX))
|
|
np->stat = EAUTH;
|
|
return (1);
|
|
};
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
usage()
|
|
{
|
|
(void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
|
|
"usage: mount_nfs [-23KNPTUbcdilqs] [-D deadthresh] [-I readdirsize]",
|
|
" [-L leaseterm] [-R retrycnt] [-a maxreadahead]",
|
|
" [-g maxgroups] [-m realm] [-o options] [-r readsize]",
|
|
" [-t timeout] [-w writesize] [-x retrans] rhost:path node");
|
|
exit(1);
|
|
}
|