/* * Copyright (c) 1992, 1993, 1994 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Rick Macklem at The University of Guelph. * * 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, Berkeley 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. */ #ifndef lint static char copyright[] = "@(#) Copyright (c) 1992, 1993, 1994\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint static char sccsid[] = "@(#)mount_nfs.c 8.3 (Berkeley) 3/27/94"; #endif /* not lint */ #include #include #include #include #include #include #include #include #include #ifdef ISO #include #endif #ifdef KERBEROS #include #include #endif #include #include #define KERNEL #include #undef KERNEL #include #include #include #include #include #include #include #include #include #include #include #include #include "mntopts.h" #define ALTF_BG 0x1 #define ALTF_NOCONN 0x2 #define ALTF_DUMBTIMR 0x4 #define ALTF_INTR 0x8 #define ALTF_KERB 0x10 #define ALTF_NQLOOKLSE 0x20 #define ALTF_RDIRALOOK 0x40 #define ALTF_MYWRITE 0x80 #define ALTF_RESVPORT 0x100 #define ALTF_SEQPACKET 0x200 #define ALTF_NQNFS 0x400 #define ALTF_SOFT 0x800 #define ALTF_TCP 0x1000 struct mntopt mopts[] = { MOPT_STDOPTS, MOPT_FORCE, MOPT_UPDATE, { "bg", 0, ALTF_BG, 1 }, { "conn", 1, ALTF_NOCONN, 1 }, { "dumbtimer", 0, ALTF_DUMBTIMR, 1 }, { "intr", 0, ALTF_INTR, 1 }, #ifdef KERBEROS { "kerb", 0, ALTF_KERB, 1 }, #endif { "nqlooklease", 0, ALTF_NQLOOKLSE, 1 }, { "rdiralook", 0, ALTF_RDIRALOOK, 1 }, { "mywrite", 0, ALTF_MYWRITE, 1 }, { "resvport", 0, ALTF_RESVPORT, 1 }, #ifdef ISO { "seqpacket", 0, ALTF_SEQPACKET, 1 }, #endif { "nqnfs", 0, ALTF_NQNFS, 1 }, { "soft", 0, ALTF_SOFT, 1 }, { "tcp", 0, ALTF_TCP, 1 }, { NULL } }; struct nfs_args nfsdefargs = { (struct sockaddr *)0, sizeof (struct sockaddr_in), SOCK_DGRAM, 0, (nfsv2fh_t *)0, 0, NFS_WSIZE, NFS_RSIZE, NFS_TIMEO, NFS_RETRANS, NFS_MAXGRPS, NFS_DEFRAHEAD, NQ_DEFLEASE, NQ_DEADTHRESH, (char *)0, }; struct nfhret { u_long stat; nfsv2fh_t nfh; }; #define DEF_RETRY 10000 #define BGRND 1 #define ISBGRND 2 int retrycnt = DEF_RETRY; int opflags = 0; #ifdef KERBEROS char inst[INST_SZ]; char realm[REALM_SZ]; KTEXT_ST kt; #endif int getnfsargs __P((char *, struct nfs_args *)); #ifdef ISO struct iso_addr *iso_addr __P((const char *)); #endif void set_rpc_maxgrouplist __P((int)); __dead void usage __P((void)); int xdr_dir __P((XDR *, char *)); int xdr_fh __P((XDR *, struct nfhret *)); int main(argc, argv) int argc; char *argv[]; { register int c; register struct nfs_args *nfsargsp; struct nfs_args nfsargs; struct nfsd_cargs ncd; int mntflags, altflags, i, nfssvc_flag, num; char *name, *p, *spec; struct vfsconf *vfc; #ifdef KERBEROS uid_t last_ruid; #endif #ifdef KERBEROS last_ruid = -1; (void)strcpy(realm, KRB_REALM); #endif retrycnt = DEF_RETRY; mntflags = 0; altflags = 0; nfsargs = nfsdefargs; nfsargsp = &nfsargs; while ((c = getopt(argc, argv, "a:bcdD:g:iKklL:Mm:o:PpqR:r:sTt:w:x:")) != EOF) switch (c) { case 'a': num = strtol(optarg, &p, 10); if (*p || num < 0) errx(1, "illegal -a value -- %s", optarg); nfsargsp->readahead = num; nfsargsp->flags |= NFSMNT_READAHEAD; break; case 'b': opflags |= BGRND; break; case 'c': nfsargsp->flags |= NFSMNT_NOCONN; break; case 'D': num = strtol(optarg, &p, 10); if (*p || num <= 0) errx(1, "illegal -D value -- %s", optarg); nfsargsp->deadthresh = num; nfsargsp->flags |= NFSMNT_DEADTHRESH; break; case 'd': nfsargsp->flags |= NFSMNT_DUMBTIMR; break; case 'g': num = strtol(optarg, &p, 10); if (*p || num <= 0) errx(1, "illegal -g value -- %s", optarg); set_rpc_maxgrouplist(num); nfsargsp->maxgrouplist = num; nfsargsp->flags |= NFSMNT_MAXGRPS; break; case 'i': nfsargsp->flags |= NFSMNT_INT; break; #ifdef KERBEROS case 'K': nfsargsp->flags |= NFSMNT_KERB; break; #endif case 'k': nfsargsp->flags |= NFSMNT_NQLOOKLEASE; break; case 'L': num = strtol(optarg, &p, 10); if (*p || num < 2) errx(1, "illegal -L value -- %s", optarg); nfsargsp->leaseterm = num; nfsargsp->flags |= NFSMNT_LEASETERM; break; case 'l': nfsargsp->flags |= NFSMNT_RDIRALOOK; break; case 'M': nfsargsp->flags |= NFSMNT_MYWRITE; break; #ifdef KERBEROS case 'm': (void)strncpy(realm, optarg, REALM_SZ - 1); realm[REALM_SZ - 1] = '\0'; break; #endif case 'o': getmntopts(optarg, mopts, &mntflags, &altflags); if(altflags & ALTF_BG) opflags |= BGRND; if(altflags & ALTF_NOCONN) nfsargsp->flags |= NFSMNT_NOCONN; if(altflags & ALTF_DUMBTIMR) nfsargsp->flags |= NFSMNT_DUMBTIMR; if(altflags & ALTF_INTR) nfsargsp->flags |= NFSMNT_INT; #ifdef KERBEROS if(altflags & ALTF_KERB) nfsargsp->flags |= NFSMNT_KERB; #endif if(altflags & ALTF_NQLOOKLSE) nfsargsp->flags |= NFSMNT_NQLOOKLEASE; if(altflags & ALTF_RDIRALOOK) nfsargsp->flags |= NFSMNT_RDIRALOOK; if(altflags & ALTF_MYWRITE) nfsargsp->flags |= NFSMNT_MYWRITE; if(altflags & ALTF_RESVPORT) nfsargsp->flags |= NFSMNT_RESVPORT; #ifdef ISO if(altflags & ALTF_SEQPACKET) nfsargsp->sotype = SOCK_SEQPACKET; #endif if(altflags & ALTF_NQNFS) nfsargsp->flags |= NFSMNT_NQNFS; if(altflags & ALTF_SOFT) nfsargsp->flags |= NFSMNT_SOFT; if(altflags & ALTF_TCP) nfsargsp->sotype = SOCK_STREAM; altflags = 0; break; case 'P': nfsargsp->flags |= NFSMNT_RESVPORT; break; #ifdef ISO case 'p': nfsargsp->sotype = SOCK_SEQPACKET; break; #endif case 'q': nfsargsp->flags |= NFSMNT_NQNFS; break; case 'R': num = strtol(optarg, &p, 10); if (*p || num <= 0) errx(1, "illegal -R value -- %s", optarg); retrycnt = num; break; case 'r': num = strtol(optarg, &p, 10); if (*p || num <= 0) errx(1, "illegal -r value -- %s", optarg); nfsargsp->rsize = num; nfsargsp->flags |= NFSMNT_RSIZE; break; case 's': nfsargsp->flags |= NFSMNT_SOFT; break; case 'T': nfsargsp->sotype = SOCK_STREAM; break; case 't': num = strtol(optarg, &p, 10); if (*p || num <= 0) errx(1, "illegal -t value -- %s", optarg); nfsargsp->timeo = num; nfsargsp->flags |= NFSMNT_TIMEO; break; case 'w': num = strtol(optarg, &p, 10); if (*p || num <= 0) errx(1, "illegal -w value -- %s", optarg); nfsargsp->wsize = num; nfsargsp->flags |= NFSMNT_WSIZE; break; case 'x': num = strtol(optarg, &p, 10); if (*p || num <= 0) errx(1, "illegal -x value -- %s", optarg); nfsargsp->retrans = num; nfsargsp->flags |= NFSMNT_RETRANS; break; default: usage(); break; } argc -= optind; argv += optind; if (argc != 2) usage(); spec = *argv++; name = *argv; if (!getnfsargs(spec, nfsargsp)) exit(1); vfc = getvfsbyname("nfs"); if(!vfc && vfsisloadable("nfs")) { if(vfsload("nfs")) err(1, "vfsload(nfs)"); endvfsent(); /* flush cache */ vfc = getvfsbyname("nfs"); } if (mount(vfc ? vfc->vfc_index : MOUNT_NFS, name, mntflags, nfsargsp)) err(1, "%s", name); if (nfsargsp->flags & (NFSMNT_NQNFS | NFSMNT_KERB)) { if ((opflags & ISBGRND) == 0) { if (i = fork()) { if (i == -1) err(1, "nqnfs 1"); exit(0); } (void) setsid(); (void) close(STDIN_FILENO); (void) close(STDOUT_FILENO); (void) close(STDERR_FILENO); (void) chdir("/"); } openlog("mount_nfs:", LOG_PID, LOG_DAEMON); nfssvc_flag = NFSSVC_MNTD; ncd.ncd_dirp = name; 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 KERBEROS /* * 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. */ 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; } if (krb_mk_req(&kt, "rcmd", inst, realm, 0) == KSUCCESS && kt.length <= (RPCAUTH_MAXSIZ - 2 * NFSX_UNSIGNED)) { ncd.ncd_authtype = RPCAUTH_NQNFS; ncd.ncd_authlen = kt.length; ncd.ncd_authstr = (char *)kt.dat; nfssvc_flag = NFSSVC_MNTD | NFSSVC_GOTAUTH; } #endif /* KERBEROS */ } } exit(0); } int getnfsargs(spec, nfsargsp) char *spec; struct nfs_args *nfsargsp; { register CLIENT *clp; struct hostent *hp; static struct sockaddr_in saddr; #ifdef ISO static struct sockaddr_iso isoaddr; struct iso_addr *isop; int isoflag = 0; #endif struct timeval pertry, try; enum clnt_stat clnt_stat; int so = RPC_ANYSOCK, i; char *hostp, *delimp; #ifdef KERBEROS char *cp; #endif u_short tport; static struct nfhret nfhret; static char nam[MNAMELEN + 1]; strncpy(nam, spec, MNAMELEN); nam[MNAMELEN] = '\0'; if ((delimp = strchr(spec, '@')) != NULL) { hostp = delimp + 1; } else if ((delimp = strchr(spec, ':')) != NULL) { hostp = spec; spec = delimp + 1; } else { warnx("no : or @ spec"); return (0); } *delimp = '\0'; /* * DUMB!! Until the mount protocol works on iso transport, we must * supply both an iso and an inet address for the host. */ #ifdef ISO if (!strncmp(hostp, "iso=", 4)) { u_short isoport; hostp += 4; isoflag++; if ((delimp = strchr(hostp, '+')) == NULL) { warnx("no iso+inet address"); return (0); } *delimp = '\0'; if ((isop = iso_addr(hostp)) == NULL) { warnx("bad ISO address"); return (0); } bzero((caddr_t)&isoaddr, sizeof (isoaddr)); bcopy((caddr_t)isop, (caddr_t)&isoaddr.siso_addr, sizeof (struct iso_addr)); isoaddr.siso_len = sizeof (isoaddr); isoaddr.siso_family = AF_ISO; isoaddr.siso_tlen = 2; isoport = htons(NFS_PORT); bcopy((caddr_t)&isoport, TSEL(&isoaddr), isoaddr.siso_tlen); hostp = delimp + 1; } #endif /* ISO */ /* * 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) { bcopy(hp->h_addr, (caddr_t)&saddr.sin_addr, hp->h_length); } else { warnx("can't get net id for host"); return (0); } #ifdef KERBEROS 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); } bcopy(hp->h_addr, (caddr_t)&saddr.sin_addr, hp->h_length); strncpy(inst, hp->h_name, INST_SZ); inst[INST_SZ - 1] = '\0'; if (cp = strchr(inst, '.')) *cp = '\0'; } #endif /* KERBEROS */ nfhret.stat = EACCES; /* Mark not yet successful */ while (retrycnt > 0) { saddr.sin_family = AF_INET; saddr.sin_port = htons(PMAPPORT); if ((tport = pmap_getport(&saddr, RPCPROG_NFS, NFS_VER2, nfsargsp->sotype == SOCK_STREAM ? IPPROTO_TCP : IPPROTO_UDP)) == 0) { if ((opflags & ISBGRND) == 0) clnt_pcreateerror("NFS Portmap"); } else { saddr.sin_port = 0; pertry.tv_sec = 10; pertry.tv_usec = 0; if ((clp = (nfsargsp->sotype == SOCK_STREAM ? clnttcp_create(&saddr, RPCPROG_MNT, RPCMNT_VER1, &so, 0, 0) : clntudp_create(&saddr, RPCPROG_MNT, RPCMNT_VER1, pertry, &so))) == 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; clnt_stat = clnt_call(clp, RPCMNT_MOUNT, xdr_dir, spec, xdr_fh, &nfhret, try); if (clnt_stat != RPC_SUCCESS) { 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) { 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); errno = nfhret.stat; warn("can't access %s", spec); return (0); } saddr.sin_port = htons(tport); #ifdef ISO if (isoflag) { nfsargsp->addr = (struct sockaddr *) &isoaddr; nfsargsp->addrlen = sizeof (isoaddr); } else #endif /* ISO */ { nfsargsp->addr = (struct sockaddr *) &saddr; nfsargsp->addrlen = sizeof (saddr); } nfsargsp->fh = &nfhret.nfh; nfsargsp->hostname = nam; 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; struct nfhret *np; { if (!xdr_u_long(xdrsp, &(np->stat))) return (0); if (np->stat) return (1); return (xdr_opaque(xdrsp, (caddr_t)&(np->nfh), NFSX_FH)); } __dead void usage() { (void)fprintf(stderr, "usage: mount_nfs %s\n%s\n%s\n%s\n", "[-bcdiKklMPqsT] [-a maxreadahead] [-D deadthresh]", "\t[-g maxgroups] [-L leaseterm] [-m realm] [-o options] [-R retrycnt]", "\t[-r readsize] [-t timeout] [-w writesize] [-x retrans]", "\trhost:path node"); exit(1); }