/* $NetBSD: mount_fs.c,v 1.3 2001/05/13 18:07:00 veego Exp $ */ /* * Copyright (c) 1997-2001 Erez Zadok * Copyright (c) 1990 Jan-Simon Pendry * Copyright (c) 1990 Imperial College of Science, Technology & Medicine * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Jan-Simon Pendry at Imperial College, London. * * 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 acknowledgment: * 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. * * %W% (Berkeley) %G% * * Id: mount_fs.c,v 1.11.2.5 2001/04/14 21:08:25 ezk Exp * */ #ifdef HAVE_CONFIG_H # include #endif /* HAVE_CONFIG_H */ #include #include /* ensure that mount table options are delimited by a comma */ #define append_opts(old, new) { \ if (*(old) != '\0') strcat(old, ","); \ strcat(old, new); } /* * Standard mount flags */ struct opt_tab mnt_flags[] = { #if defined(MNT2_GEN_OPT_RDONLY) && defined(MNTTAB_OPT_RO) {MNTTAB_OPT_RO, MNT2_GEN_OPT_RDONLY}, #endif /* defined(MNT2_GEN_OPT_RDONLY) && defined(MNTTAB_OPT_RO) */ #if defined(MNT2_GEN_OPT_NOCACHE) && defined(MNTTAB_OPT_NOCACHE) {MNTTAB_OPT_NOCACHE, MNT2_GEN_OPT_NOCACHE}, #endif /* defined(MNT2_GEN_OPT_NOCACHE) && defined(MNTTAB_OPT_NOCACHE) */ /* the "grpid" mount option can be offered as generic of NFS */ #ifdef MNTTAB_OPT_GRPID # ifdef MNT2_GEN_OPT_GRPID {MNTTAB_OPT_GRPID, MNT2_GEN_OPT_GRPID}, # endif /* MNT2_GEN_OPT_GRPID */ # ifdef MNT2_NFS_OPT_GRPID {MNTTAB_OPT_GRPID, MNT2_NFS_OPT_GRPID}, # endif /* MNT2_NFS_OPT_GRPID */ #endif /* MNTTAB_OPT_GRPID */ #if defined(MNT2_GEN_OPT_MULTI) && defined(MNTTAB_OPT_MULTI) {MNTTAB_OPT_MULTI, MNT2_GEN_OPT_MULTI}, #endif /* defined(MNT2_GEN_OPT_MULTI) && defined(MNTTAB_OPT_MULTI) */ #if defined(MNT2_GEN_OPT_NODEV) && defined(MNTTAB_OPT_NODEV) {MNTTAB_OPT_NODEV, MNT2_GEN_OPT_NODEV}, #endif /* defined(MNT2_GEN_OPT_NODEV) && defined(MNTTAB_OPT_NODEV) */ #if defined(MNT2_GEN_OPT_NOEXEC) && defined(MNTTAB_OPT_NOEXEC) {MNTTAB_OPT_NOEXEC, MNT2_GEN_OPT_NOEXEC}, #endif /* defined(MNT2_GEN_OPT_NOEXEC) && defined(MNTTAB_OPT_NOEXEC) */ #if defined(MNT2_GEN_OPT_NOSUB) && defined(MNTTAB_OPT_NOSUB) {MNTTAB_OPT_NOSUB, MNT2_GEN_OPT_NOSUB}, #endif /* defined(MNT2_GEN_OPT_NOSUB) && defined(MNTTAB_OPT_NOSUB) */ #if defined(MNT2_GEN_OPT_NOSUID) && defined(MNTTAB_OPT_NOSUID) {MNTTAB_OPT_NOSUID, MNT2_GEN_OPT_NOSUID}, #endif /* defined(MNT2_GEN_OPT_NOSUID) && defined(MNTTAB_OPT_NOSUID) */ #if defined(MNT2_GEN_OPT_SYNC) && defined(MNTTAB_OPT_SYNC) {MNTTAB_OPT_SYNC, MNT2_GEN_OPT_SYNC}, #endif /* defined(MNT2_GEN_OPT_SYNC) && defined(MNTTAB_OPT_SYNC) */ #if defined(MNT2_GEN_OPT_OVERLAY) && defined(MNTTAB_OPT_OVERLAY) {MNTTAB_OPT_OVERLAY, MNT2_GEN_OPT_OVERLAY}, #endif /* defined(MNT2_GEN_OPT_OVERLAY) && defined(MNTTAB_OPT_OVERLAY) */ #if defined(MNT2_NFS_OPT_PROPLIST) && defined(MNTTAB_OPT_PROPLIST) {MNTTAB_OPT_PROPLIST, MNT2_NFS_OPT_PROPLIST}, #endif /* defined(MNT2_NFS_OPT_PROPLIST) && defined(MNTTAB_OPT_PROPLIST) */ #if defined(MNT2_NFS_OPT_NONLM) && defined(MNTTAB_OPT_NOLOCK) {MNTTAB_OPT_NOLOCK, MNT2_NFS_OPT_NONLM}, #endif /* defined(MNT2_NFS_OPT_NONLM) && defined(MNTTAB_OPT_NOLOCK) */ {0, 0} }; /* compute generic mount flags */ int compute_mount_flags(mntent_t *mntp) { struct opt_tab *opt; int flags; /* start: this must come first */ #ifdef MNT2_GEN_OPT_NEWTYPE flags = MNT2_GEN_OPT_NEWTYPE; #else /* not MNT2_GEN_OPT_NEWTYPE */ /* Not all machines have MNT2_GEN_OPT_NEWTYPE (HP-UX 9.01) */ flags = 0; #endif /* not MNT2_GEN_OPT_NEWTYPE */ #if defined(MNT2_GEN_OPT_OVERLAY) && defined(MNTTAB_OPT_OVERLAY) /* * Overlay this amd mount (presumably on another amd which died * before and left the machine hung). This will allow a new amd or * hlfsd to be remounted on top of another one. */ if (hasmntopt(mntp, MNTTAB_OPT_OVERLAY)) { flags |= MNT2_GEN_OPT_OVERLAY; plog(XLOG_INFO, "using an overlay mount"); } #endif /* defined(MNT2_GEN_OVERLAY) && defined(MNTOPT_OVERLAY) */ /* * Crack basic mount options */ for (opt = mnt_flags; opt->opt; opt++) { flags |= hasmntopt(mntp, opt->opt) ? opt->flag : 0; } return flags; } /* compute generic mount flags for automounter mounts */ int compute_automounter_mount_flags(mntent_t *mntp) { int flags = 0; #ifdef MNT2_GEN_OPT_IGNORE flags |= MNT2_GEN_OPT_IGNORE; #endif /* not MNT2_GEN_OPT_IGNORE */ #ifdef MNT2_GEN_OPT_AUTOMNTFS flags |= MNT2_GEN_OPT_AUTOMNTFS; #endif /* not MNT2_GEN_OPT_AUTOMNTFS */ return flags; } int mount_fs(mntent_t *mnt, int flags, caddr_t mnt_data, int retry, MTYPE_TYPE type, u_long nfs_version, const char *nfs_proto, const char *mnttabname) { int error = 0; #ifdef MOUNT_TABLE_ON_FILE # ifdef MNTTAB_OPT_DEV struct stat stb; # endif /* MNTTAB_OPT_DEV */ char *zopts = NULL, *xopts = NULL; # if defined(MNTTAB_OPT_DEV) || (defined(HAVE_FS_NFS3) && defined(MNTTAB_OPT_VERS)) || defined(MNTTAB_OPT_PROTO) char optsbuf[48]; # endif /* defined(MNTTAB_OPT_DEV) || (defined(HAVE_FS_NFS3) && defined(MNTTAB_OPT_VERS)) || defined(MNTTAB_OPT_PROTO) */ #endif /* MOUNT_TABLE_ON_FILE */ #ifdef DEBUG dlog("%s fstype " MTYPE_PRINTF_TYPE " (%s) flags %#x (%s)", mnt->mnt_dir, type, mnt->mnt_type, flags, mnt->mnt_opts); #endif /* DEBUG */ again: clock_valid = 0; error = MOUNT_TRAP(type, mnt, flags, mnt_data); if (error < 0) { plog(XLOG_ERROR, "%s: mount: %m", mnt->mnt_dir); /* * The following code handles conditions which shouldn't * occur. They are possible either because amd screws up * in preparing for the mount, or because some human * messed with the mount point. Both have been known to * happen. -- stolcke 2/22/95 */ if (errno == ENOENT) { /* * Occasionally the mount point vanishes, probably * due to some race condition. Just recreate it * as necessary. */ errno = mkdirs(mnt->mnt_dir, 0555); if (errno != 0 && errno != EEXIST) plog(XLOG_ERROR, "%s: mkdirs: %m", mnt->mnt_dir); else { plog(XLOG_WARNING, "extra mkdirs required for %s", mnt->mnt_dir); error = MOUNT_TRAP(type, mnt, flags, mnt_data); } } else if (errno == EBUSY) { /* * Also, sometimes unmount isn't called, e.g., because * our mountlist is garbled. This leaves old mount * points around which need to be removed before we * can mount something new in their place. */ errno = umount_fs(mnt->mnt_dir, mnttabname); if (errno != 0) plog(XLOG_ERROR, "%s: umount: %m", mnt->mnt_dir); else { plog(XLOG_WARNING, "extra umount required for %s", mnt->mnt_dir); error = MOUNT_TRAP(type, mnt, flags, mnt_data); } } } if (error < 0 && --retry > 0) { sleep(1); goto again; } if (error < 0) { return errno; } #ifdef MOUNT_TABLE_ON_FILE /* * Allocate memory for options: * dev=..., vers={2,3}, proto={tcp,udp} */ zopts = (char *) xmalloc(strlen(mnt->mnt_opts) + 48); /* copy standard options */ xopts = mnt->mnt_opts; strcpy(zopts, xopts); # ifdef MNTTAB_OPT_DEV /* add the extra dev= field to the mount table */ if (lstat(mnt->mnt_dir, &stb) == 0) { if (sizeof(stb.st_dev) == 2) /* e.g. SunOS 4.1 */ sprintf(optsbuf, "%s=%04lx", MNTTAB_OPT_DEV, (u_long) stb.st_dev & 0xffff); else /* e.g. System Vr4 */ sprintf(optsbuf, "%s=%08lx", MNTTAB_OPT_DEV, (u_long) stb.st_dev); append_opts(zopts, optsbuf); } # endif /* MNTTAB_OPT_DEV */ # if defined(HAVE_FS_NFS3) && defined(MNTTAB_OPT_VERS) /* * add the extra vers={2,3} field to the mount table, * unless already specified by user */ if (nfs_version == NFS_VERSION3 && hasmntval(mnt, MNTTAB_OPT_VERS) != NFS_VERSION3) { sprintf(optsbuf, "%s=%d", MNTTAB_OPT_VERS, NFS_VERSION3); append_opts(zopts, optsbuf); } # endif /* defined(HAVE_FS_NFS3) && defined(MNTTAB_OPT_VERS) */ # ifdef MNTTAB_OPT_PROTO /* * add the extra proto={tcp,udp} field to the mount table, * unless already specified by user. */ if (nfs_proto && !hasmntopt(mnt, MNTTAB_OPT_PROTO)) { sprintf(optsbuf, "%s=%s", MNTTAB_OPT_PROTO, nfs_proto); append_opts(zopts, optsbuf); } # endif /* MNTTAB_OPT_PROTO */ /* finally, store the options into the mount table structure */ mnt->mnt_opts = zopts; /* * Additional fields in mntent_t * are fixed up here */ # ifdef HAVE_FIELD_MNTENT_T_MNT_CNODE mnt->mnt_cnode = 0; # endif /* HAVE_FIELD_MNTENT_T_MNT_CNODE */ # ifdef HAVE_FIELD_MNTENT_T_MNT_RO mnt->mnt_ro = (hasmntopt(mnt, MNTTAB_OPT_RO) != NULL); # endif /* HAVE_FIELD_MNTENT_T_MNT_RO */ # ifdef HAVE_FIELD_MNTENT_T_MNT_TIME # ifdef HAVE_FIELD_MNTENT_T_MNT_TIME_STRING { /* allocate enough space for a long */ char *str = (char *) xmalloc(13 * sizeof(char)); sprintf(str, "%ld", time((time_t *) NULL)); mnt->mnt_time = str; } # else /* not HAVE_FIELD_MNTENT_T_MNT_TIME_STRING */ mnt->mnt_time = time((time_t *) NULL); # endif /* not HAVE_FIELD_MNTENT_T_MNT_TIME_STRING */ # endif /* HAVE_FIELD_MNTENT_T_MNT_TIME */ write_mntent(mnt, mnttabname); # ifdef MNTTAB_OPT_DEV if (xopts) { XFREE(mnt->mnt_opts); mnt->mnt_opts = xopts; } # endif /* MNTTAB_OPT_DEV */ #endif /* MOUNT_TABLE_ON_FILE */ return 0; } /* * Fill in the many possible fields and flags of struct nfs_args. * * nap: pre-allocated structure to fill in. * mntp: mount entry structure (includes options) * genflags: generic mount flags already determined * nfsncp: (TLI only) netconfig entry for this NFS mount * ip_addr: IP address of file server * nfs_version: 2, 3, (4 in the future), or 0 if unknown * nfs_proto: "udp", "tcp", or NULL. * fhp: file handle structure pointer * host_name: name of remote NFS host * fs_name: remote file system name to mount */ void #ifdef HAVE_TRANSPORT_TYPE_TLI compute_nfs_args(nfs_args_t *nap, mntent_t *mntp, int genflags, struct netconfig *nfsncp, struct sockaddr_in *ip_addr, u_long nfs_version, char *nfs_proto, am_nfs_handle_t *fhp, char *host_name, char *fs_name) #else /* not HAVE_TRANSPORT_TYPE_TLI */ compute_nfs_args(nfs_args_t *nap, mntent_t *mntp, int genflags, struct sockaddr_in *ip_addr, u_long nfs_version, char *nfs_proto, am_nfs_handle_t *fhp, char *host_name, char *fs_name) #endif /* not HAVE_TRANSPORT_TYPE_TLI */ { int acval = 0; #ifdef HAVE_FS_NFS3 static am_nfs_fh3 fh3; /* static, b/c gcc on aix corrupts stack */ #endif /* HAVE_FS_NFS3 */ /* initialize just in case */ memset((voidp) nap, 0, sizeof(nfs_args_t)); /************************************************************************/ /*** FILEHANDLE DATA AND LENGTH ***/ /************************************************************************/ #ifdef HAVE_FS_NFS3 if (nfs_version == NFS_VERSION3) { memset((voidp) &fh3, 0, sizeof(am_nfs_fh3)); fh3.fh3_length = fhp->v3.mountres3_u.mountinfo.fhandle.fhandle3_len; memmove(fh3.fh3_u.data, fhp->v3.mountres3_u.mountinfo.fhandle.fhandle3_val, fh3.fh3_length); # if defined(HAVE_FIELD_NFS_ARGS_T_FHSIZE) || defined(HAVE_FIELD_NFS_ARGS_T_FH_LEN) /* * Some systems (Irix/bsdi3) have a separate field in nfs_args for * the length of the file handle for NFS V3. They insist that * the file handle set in nfs_args be plain bytes, and not * include the length field. */ NFS_FH_DREF(nap->NFS_FH_FIELD, &(fh3.fh3_u.data)); # else /* not defined(HAVE_FIELD_NFS_ARGS_T_FHSIZE) || defined(HAVE_FIELD_NFS_ARGS_T_FH_LEN) */ NFS_FH_DREF(nap->NFS_FH_FIELD, &fh3); # endif /* not defined(HAVE_FIELD_NFS_ARGS_T_FHSIZE) || defined(HAVE_FIELD_NFS_ARGS_T_FH_LEN) */ # ifdef MNT2_NFS_OPT_NFSV3 nap->flags |= MNT2_NFS_OPT_NFSV3; # endif /* MNT2_NFS_OPT_NFSV3 */ # ifdef MNT2_NFS_OPT_VER3 nap->flags |= MNT2_NFS_OPT_VER3; # endif /* MNT2_NFS_OPT_VER3 */ } else #endif /* HAVE_FS_NFS3 */ NFS_FH_DREF(nap->NFS_FH_FIELD, &(fhp->v2.fhs_fh)); #ifdef HAVE_FIELD_NFS_ARGS_T_FHSIZE # ifdef HAVE_FS_NFS3 if (nfs_version == NFS_VERSION3) nap->fhsize = fh3.fh3_length; else # endif /* HAVE_FS_NFS3 */ nap->fhsize = FHSIZE; #endif /* HAVE_FIELD_NFS_ARGS_T_FHSIZE */ /* this is the version of the nfs_args structure, not of NFS! */ #ifdef HAVE_FIELD_NFS_ARGS_T_FH_LEN # ifdef HAVE_FS_NFS3 if (nfs_version == NFS_VERSION3) nap->fh_len = fh3.fh3_length; else # endif /* HAVE_FS_NFS3 */ nap->fh_len = FHSIZE; #endif /* HAVE_FIELD_NFS_ARGS_T_FH_LEN */ /************************************************************************/ /*** HOST NAME ***/ /************************************************************************/ NFS_HN_DREF(nap->hostname, host_name); #ifdef MNT2_NFS_OPT_HOSTNAME nap->flags |= MNT2_NFS_OPT_HOSTNAME; #endif /* MNT2_NFS_OPT_HOSTNAME */ /************************************************************************/ /*** ATTRIBUTE CACHES ***/ /************************************************************************/ /* * acval is set to 0 at the top of the function. If actimeo mount option * exists and defined in mntopts, then it acval is set to it. * If the value is non-zero, then we set all attribute cache fields to it. * If acval is zero, it means it was never defined in mntopts or the * actimeo mount option does not exist, in which case we check for * individual mount options per attribute cache. * Regardless of the value of acval, mount flags are set based directly * on the values of the attribute caches. */ #ifdef MNTTAB_OPT_ACTIMEO acval = hasmntval(mntp, MNTTAB_OPT_ACTIMEO); /* attr cache timeout (sec) */ #endif /* MNTTAB_OPT_ACTIMEO */ if (acval) { #ifdef HAVE_FIELD_NFS_ARGS_T_ACREGMIN nap->acregmin = acval; /* min ac timeout for reg files (sec) */ nap->acregmax = acval; /* max ac timeout for reg files (sec) */ #endif /* HAVE_FIELD_NFS_ARGS_T_ACREGMIN */ #ifdef HAVE_FIELD_NFS_ARGS_T_ACDIRMIN nap->acdirmin = acval; /* min ac timeout for dirs (sec) */ nap->acdirmax = acval; /* max ac timeout for dirs (sec) */ #endif /* HAVE_FIELD_NFS_ARGS_T_ACDIRMIN */ } else { #ifdef MNTTAB_OPT_ACREGMIN nap->acregmin = hasmntval(mntp, MNTTAB_OPT_ACREGMIN); #endif /* MNTTAB_OPT_ACREGMIN */ #ifdef MNTTAB_OPT_ACREGMAX nap->acregmax = hasmntval(mntp, MNTTAB_OPT_ACREGMAX); #endif /* MNTTAB_OPT_ACREGMAX */ #ifdef MNTTAB_OPT_ACDIRMIN nap->acdirmin = hasmntval(mntp, MNTTAB_OPT_ACDIRMIN); #endif /* MNTTAB_OPT_ACDIRMIN */ #ifdef MNTTAB_OPT_ACDIRMAX nap->acdirmax = hasmntval(mntp, MNTTAB_OPT_ACDIRMAX); #endif /* MNTTAB_OPT_ACDIRMAX */ } /* end of "if (acval)" statement */ #ifdef MNT2_NFS_OPT_ACREGMIN if (nap->acregmin) nap->flags |= MNT2_NFS_OPT_ACREGMIN; #endif /* MNT2_NFS_OPT_ACREGMIN */ #ifdef MNT2_NFS_OPT_ACREGMAX if (nap->acregmax) nap->flags |= MNT2_NFS_OPT_ACREGMAX; #endif /* MNT2_NFS_OPT_ACREGMAX */ #ifdef MNT2_NFS_OPT_ACDIRMIN if (nap->acdirmin) nap->flags |= MNT2_NFS_OPT_ACDIRMIN; #endif /* MNT2_NFS_OPT_ACDIRMIN */ #ifdef MNT2_NFS_OPT_ACDIRMAX if (nap->acdirmax) nap->flags |= MNT2_NFS_OPT_ACDIRMAX; #endif /* MNT2_NFS_OPT_ACDIRMAX */ #ifdef MNTTAB_OPT_NOAC /* don't cache attributes */ if (hasmntopt(mntp, MNTTAB_OPT_NOAC) != NULL) nap->flags |= MNT2_NFS_OPT_NOAC; #endif /* MNTTAB_OPT_NOAC */ /************************************************************************/ /*** IP ADDRESS OF REMOTE HOST ***/ /************************************************************************/ if (ip_addr) { #ifdef HAVE_TRANSPORT_TYPE_TLI nap->addr = ALLOC(struct netbuf); /* free()'ed at end of mount_nfs_fh() */ #endif /* HAVE_TRANSPORT_TYPE_TLI */ NFS_SA_DREF(nap, ip_addr); } /************************************************************************/ /*** NFS PROTOCOL (UDP, TCP) AND VERSION ***/ /************************************************************************/ #ifdef MNT2_NFS_OPT_TCP if (nfs_proto && STREQ(nfs_proto, "tcp")) nap->flags |= MNT2_NFS_OPT_TCP; #endif /* MNT2_NFS_OPT_TCP */ #ifdef HAVE_FIELD_NFS_ARGS_T_SOTYPE /* bsdi3 uses this */ if (nfs_proto) { if (STREQ(nfs_proto, "tcp")) nap->sotype = SOCK_STREAM; else if (STREQ(nfs_proto, "udp")) nap->sotype = SOCK_DGRAM; } #endif /* HAVE_FIELD_NFS_ARGS_T_SOTYPE */ #ifdef HAVE_FIELD_NFS_ARGS_T_PROTO nap->proto = 0; /* bsdi3 sets this field to zero */ # ifdef IPPROTO_TCP if (nfs_proto) { if (STREQ(nfs_proto, "tcp")) /* AIX 4.2.x needs this */ nap->proto = IPPROTO_TCP; else if (STREQ(nfs_proto, "udp")) nap->proto = IPPROTO_UDP; } # endif /* IPPROTO_TCP */ #endif /* HAVE_FIELD_NFS_ARGS_T_SOTYPE */ #ifdef HAVE_FIELD_NFS_ARGS_T_VERSION # ifdef NFS_ARGSVERSION nap->version = NFS_ARGSVERSION; /* BSDI 3.0 and OpenBSD 2.2 */ # endif /* NFS_ARGSVERSION */ # ifdef DG_MOUNT_NFS_VERSION nap->version = DG_MOUNT_NFS_VERSION; /* dg-ux */ # endif /* DG_MOUNT_NFS_VERSION */ #endif /* HAVE_FIELD_NFS_ARGS_VERSION */ /************************************************************************/ /*** OTHER NFS SOCKET RELATED OPTIONS AND FLAGS ***/ /************************************************************************/ #ifdef MNT2_NFS_OPT_NOCONN /* check if user specified to use unconnected or connected sockets */ if (hasmntopt(mntp, MNTTAB_OPT_NOCONN) != NULL) nap->flags |= MNT2_NFS_OPT_NOCONN; else if (hasmntopt(mntp, MNTTAB_OPT_CONN) != NULL) nap->flags &= ~MNT2_NFS_OPT_NOCONN; else { /* * Some OSs want you to set noconn always. Some want you to always turn * it off. Others want you to turn it on/off only if NFS V.3 is used. * And all of that changes from revision to another. This is * particularly true of OpenBSD, NetBSD, and FreeBSD. So, rather than * attempt to auto-detect this, I'm forced to "fix" it in the individual * conf/nfs_prot/nfs_prot_*.h files. */ # ifdef USE_UNCONNECTED_NFS_SOCKETS if (!(nap->flags & MNT2_NFS_OPT_NOCONN)) { nap->flags |= MNT2_NFS_OPT_NOCONN; plog(XLOG_WARNING, "noconn option not specified, and was just turned ON (OS override)! (May cause NFS hangs on some systems...)"); } # endif /* USE_UNCONNECTED_NFS_SOCKETS */ # ifdef USE_CONNECTED_NFS_SOCKETS if (nap->flags & MNT2_NFS_OPT_NOCONN) { nap->flags &= ~MNT2_NFS_OPT_NOCONN; plog(XLOG_WARNING, "noconn option specified, and was just turned OFF (OS override)! (May cause NFS hangs on some systems...)"); } # endif /* USE_CONNECTED_NFS_SOCKETS */ } #endif /* MNT2_NFS_OPT_NOCONN */ #ifdef MNT2_NFS_OPT_RESVPORT # ifdef MNTTAB_OPT_RESVPORT if (hasmntopt(mntp, MNTTAB_OPT_RESVPORT) != NULL) nap->flags |= MNT2_NFS_OPT_RESVPORT; # else /* not MNTTAB_OPT_RESVPORT */ nap->flags |= MNT2_NFS_OPT_RESVPORT; # endif /* not MNTTAB_OPT_RESVPORT */ #endif /* MNT2_NFS_OPT_RESVPORT */ /************************************************************************/ /*** OTHER FLAGS AND OPTIONS ***/ /************************************************************************/ #ifdef HAVE_TRANSPORT_TYPE_TLI /* set up syncaddr field */ nap->syncaddr = (struct netbuf *) NULL; /* set up knconf field */ if (get_knetconfig(&nap->knconf, nfsncp, nfs_proto) < 0) { plog(XLOG_FATAL, "cannot fill knetconfig structure for nfs_args"); going_down(1); } /* update the flags field for knconf */ nap->flags |= MNT2_NFS_OPT_KNCONF; #endif /* HAVE_TRANSPORT_TYPE_TLI */ #ifdef MNT2_NFS_OPT_FSNAME nap->fsname = fs_name; nap->flags |= MNT2_NFS_OPT_FSNAME; #endif /* MNT2_NFS_OPT_FSNAME */ nap->rsize = hasmntval(mntp, MNTTAB_OPT_RSIZE); #ifdef MNT2_NFS_OPT_RSIZE if (nap->rsize) nap->flags |= MNT2_NFS_OPT_RSIZE; #endif /* MNT2_NFS_OPT_RSIZE */ nap->wsize = hasmntval(mntp, MNTTAB_OPT_WSIZE); #ifdef MNT2_NFS_OPT_WSIZE if (nap->wsize) nap->flags |= MNT2_NFS_OPT_WSIZE; #endif /* MNT2_NFS_OPT_WSIZE */ nap->timeo = hasmntval(mntp, MNTTAB_OPT_TIMEO); #ifdef MNT2_NFS_OPT_TIMEO if (nap->timeo) nap->flags |= MNT2_NFS_OPT_TIMEO; #endif /* MNT2_NFS_OPT_TIMEO */ nap->retrans = hasmntval(mntp, MNTTAB_OPT_RETRANS); #ifdef MNT2_NFS_OPT_RETRANS if (nap->retrans) nap->flags |= MNT2_NFS_OPT_RETRANS; #endif /* MNT2_NFS_OPT_RETRANS */ #ifdef MNT2_NFS_OPT_BIODS if ((nap->biods = hasmntval(mntp, MNTTAB_OPT_BIODS))) nap->flags |= MNT2_NFS_OPT_BIODS; #endif /* MNT2_NFS_OPT_BIODS */ if (hasmntopt(mntp, MNTTAB_OPT_SOFT) != NULL) nap->flags |= MNT2_NFS_OPT_SOFT; #ifdef MNT2_NFS_OPT_SPONGY if (hasmntopt(mntp, MNTTAB_OPT_SPONGY) != NULL) { nap->flags |= MNT2_NFS_OPT_SPONGY; if (nap->flags & MNT2_NFS_OPT_SOFT) { plog(XLOG_USER, "Mount opts soft and spongy are incompatible - soft ignored"); nap->flags &= ~MNT2_NFS_OPT_SOFT; } } #endif /* MNT2_NFS_OPT_SPONGY */ #if defined(MNT2_GEN_OPT_RONLY) && defined(MNT2_NFS_OPT_RONLY) /* Ultrix has separate generic and NFS ro flags */ if (genflags & MNT2_GEN_OPT_RONLY) nap->flags |= MNT2_NFS_OPT_RONLY; #endif /* defined(MNT2_GEN_OPT_RONLY) && defined(MNT2_NFS_OPT_RONLY) */ #ifdef MNTTAB_OPT_INTR if (hasmntopt(mntp, MNTTAB_OPT_INTR) != NULL) /* * Either turn on the "allow interrupts" option, or * turn off the "disallow interrupts" option" */ # ifdef MNT2_NFS_OPT_INTR nap->flags |= MNT2_NFS_OPT_INTR; # endif /* MNT2_NFS_OPT_INTR */ # ifdef MNT2_NFS_OPT_NOINTR nap->flags &= ~MNT2_NFS_OPT_NOINTR; # endif /* MNT2_NFS_OPT_NOINTR */ # ifdef MNT2_NFS_OPT_INT nap->flags |= MNT2_NFS_OPT_INT; # endif /* MNT2_NFS_OPT_INT */ # ifdef MNT2_NFS_OPT_NOINT nap->flags &= ~MNT2_NFS_OPT_NOINT; # endif /* MNT2_NFS_OPT_NOINT */ #endif /* MNTTAB_OPT_INTR */ #ifdef MNTTAB_OPT_NODEVS if (hasmntopt(mntp, MNTTAB_OPT_NODEVS) != NULL) nap->flags |= MNT2_NFS_OPT_NODEVS; #endif /* MNTTAB_OPT_NODEVS */ #ifdef MNTTAB_OPT_COMPRESS if (hasmntopt(mntp, MNTTAB_OPT_COMPRESS) != NULL) nap->flags |= MNT2_NFS_OPT_COMPRESS; #endif /* MNTTAB_OPT_COMPRESS */ #ifdef MNTTAB_OPT_PRIVATE /* mount private, single-client tree */ if (hasmntopt(mntp, MNTTAB_OPT_PRIVATE) != NULL) nap->flags |= MNT2_NFS_OPT_PRIVATE; #endif /* MNTTAB_OPT_PRIVATE */ #ifdef MNTTAB_OPT_SYMTTL /* symlink cache time-to-live */ if ((nap->symttl = hasmntval(mntp, MNTTAB_OPT_SYMTTL))) nap->flags |= MNT2_NFS_OPT_SYMTTL; #endif /* MNTTAB_OPT_SYMTTL */ #ifdef MNT2_NFS_OPT_PGTHRESH /* paging threshold */ if ((nap->pg_thresh = hasmntval(mntp, MNTTAB_OPT_PGTHRESH))) nap->flags |= MNT2_NFS_OPT_PGTHRESH; #endif /* MNT2_NFS_OPT_PGTHRESH */ #if defined(MNT2_NFS_OPT_NOCTO) && defined(MNTTAB_OPT_NOCTO) if (hasmntopt(mntp, MNTTAB_OPT_NOCTO) != NULL) nap->flags |= MNT2_NFS_OPT_NOCTO; #endif /* defined(MNT2_NFS_OPT_NOCTO) && defined(MNTTAB_OPT_NOCTO) */ #if defined(MNT2_NFS_OPT_POSIX) && defined(MNTTAB_OPT_POSIX) if (hasmntopt(mntp, MNTTAB_OPT_POSIX) != NULL) { nap->flags |= MNT2_NFS_OPT_POSIX; nap->pathconf = NULL; } #endif /* MNT2_NFS_OPT_POSIX && MNTTAB_OPT_POSIX */ #if defined(MNT2_NFS_OPT_PROPLIST) && defined(MNTTAB_OPT_PROPLIST) if (hasmntopt(mntp, MNTTAB_OPT_PROPLIST) != NULL) nap->flags |= MNT2_NFS_OPT_PROPLIST; #endif /* defined(MNT2_NFS_OPT_PROPLIST) && defined(MNTTAB_OPT_PROPLIST) */ #if defined(MNT2_NFS_OPT_MAXGRPS) && defined(MNTTAB_OPT_MAXGROUPS) nap->maxgrouplist = hasmntval(mntp, MNTTAB_OPT_MAXGROUPS); if (nap->maxgrouplist != NULL) nap->flags |= MNT2_NFS_OPT_MAXGRPS; #endif /* defined(MNT2_NFS_OPT_MAXGRPS) && defined(MNTTAB_OPT_MAXGROUPS) */ #ifdef HAVE_FIELD_NFS_ARGS_T_OPTSTR nap->optstr = mntp->mnt_opts; #endif /* HAVE_FIELD_NFS_ARGS_T_OPTSTR */ /************************************************************************/ /*** FINAL ACTIONS ***/ /************************************************************************/ #ifdef HAVE_FIELD_NFS_ARGS_T_GFS_FLAGS /* Ultrix stores generic flags in nfs_args.gfs_flags. */ nap->gfs_flags = genflags; #endif /* HAVE_FIELD_NFS_ARGS_T_FLAGS */ return; /* end of compute_nfs_args() function */ } /* * Fill in special values for flags and fields of nfs_args, for an * automounter NFS mount. */ void compute_automounter_nfs_args(nfs_args_t *nap, mntent_t *mntp) { #ifdef MNT2_NFS_OPT_SYMTTL /* * Don't let the kernel cache symbolic links we generate, or else lookups * will bypass amd and fail to remount stuff as needed. */ plog(XLOG_INFO, "turning on NFS option symttl and setting value to 0"); nap->flags |= MNT2_NFS_OPT_SYMTTL; nap->symttl = 0; #endif /* MNT2_NFS_OPT_SYMTTL */ /* * This completes the flags for the HIDE_MOUNT_TYPE code in the * mount_amfs_toplvl() function in amd/amfs_toplvl.c. * Some systems don't have a mount type, but a mount flag. */ #ifdef MNT2_NFS_OPT_AUTO nap->flags |= MNT2_NFS_OPT_AUTO; #endif /* MNT2_NFS_OPT_AUTO */ #ifdef MNT2_NFS_OPT_IGNORE nap->flags |= MNT2_NFS_OPT_IGNORE; #endif /* MNT2_NFS_OPT_IGNORE */ #ifdef MNT2_GEN_OPT_AUTOMNTFS nap->flags |= MNT2_GEN_OPT_AUTOMNTFS; #endif /* not MNT2_GEN_OPT_AUTOMNTFS */ #ifdef MNT2_NFS_OPT_DUMBTIMR /* * Don't let the kernel start computing throughput of Amd. The numbers * will be meaningless because of the way Amd does mount retries. */ plog(XLOG_INFO, "%s: disabling nfs congestion window", mntp->mnt_dir); nap->flags |= MNT2_NFS_OPT_DUMBTIMR; #endif /* MNT2_NFS_OPT_DUMBTIMR */ #ifdef MNT2_NFS_OPT_NOAC /* * Don't cache attributes - they are changing under the kernel's feet. * For example, IRIX5.2 will dispense with nfs lookup calls and hand stale * filehandles to getattr unless we disable attribute caching on the * automount points. */ nap->flags |= MNT2_NFS_OPT_NOAC; #else /* not MNT2_NFS_OPT_NOAC */ /* * Setting these to 0 results in an error on some systems, which is why * it's better to use "noac" if possible. */ # if defined(MNT2_NFS_OPT_ACREGMIN) && defined(MNT2_NFS_OPT_ACREGMAX) nap->acregmin = nap->acregmax = 0; /* XXX: was 1, but why? */ nap->flags |= MNT2_NFS_OPT_ACREGMIN | MNT2_NFS_OPT_ACREGMAX; # endif /* defined(MNT2_NFS_OPT_ACREGMIN) && defined(MNT2_NFS_OPT_ACREGMAX) */ # if defined(MNT2_NFS_OPT_ACDIRMIN) && defined(MNT2_NFS_OPT_ACDIRMAX) nap->acdirmin = nap->acdirmax = 0; /* XXX: was 1, but why? */ nap->flags |= MNT2_NFS_OPT_ACDIRMIN | MNT2_NFS_OPT_ACDIRMAX; # endif /* defined(MNT2_NFS_OPT_ACDIRMIN) && defined(MNT2_NFS_OPT_ACDIRMAX) */ #endif /* not MNT2_NFS_OPT_NOAC */ /* * Provide a slight bit more security by requiring the kernel to use * reserved ports. */ #ifdef MNT2_NFS_OPT_RESVPORT nap->flags |= MNT2_NFS_OPT_RESVPORT; #endif /* MNT2_NFS_OPT_RESVPORT */ } #ifdef DEBUG /* get string version (in hex) of identifier */ static char * get_hex_string(u_int len, const char *fhdata) { int i; static char buf[128]; /* better not go over it! */ char str[16]; short int arr[64]; if (!fhdata) return NULL; buf[0] = '\0'; memset(&arr[0], 0, (64 * sizeof(short int))); memcpy(&arr[0], &fhdata[0], len); for (i=0; iaddr; plog(XLOG_DEBUG, "NA->addr {netbuf} (maxlen=%d, len=%d) = \"%s\"", nbp->maxlen, nbp->len, get_hex_string(nbp->len, nbp->buf)); nbp = nap->syncaddr; plog(XLOG_DEBUG, "NA->syncaddr {netbuf} 0x%x", (int) nbp); kncp = nap->knconf; plog(XLOG_DEBUG, "NA->knconf->semantics %lu", (unsigned long) kncp->knc_semantics); plog(XLOG_DEBUG, "NA->knconf->protofmly \"%s\"", kncp->knc_protofmly); plog(XLOG_DEBUG, "NA->knconf->proto \"%s\"", kncp->knc_proto); plog(XLOG_DEBUG, "NA->knconf->rdev %lu", kncp->knc_rdev); /* don't print knconf->unused field */ #else /* not HAVE_TRANSPORT_TYPE_TLI */ sap = (struct sockaddr_in *) &nap->addr; plog(XLOG_DEBUG, "NA->addr {sockaddr_in} (len=%d) = \"%s\"", (int) sizeof(struct sockaddr_in), get_hex_string(sizeof(struct sockaddr_in), (const char *)sap)); #ifdef HAVE_FIELD_STRUCT_SOCKADDR_SA_LEN plog(XLOG_DEBUG, "NA->addr.sin_len = \"%d\"", sap->sin_len); #endif /* HAVE_FIELD_STRUCT_SOCKADDR_SA_LEN */ plog(XLOG_DEBUG, "NA->addr.sin_family = \"%d\"", sap->sin_family); plog(XLOG_DEBUG, "NA->addr.sin_port = \"%d\"", sap->sin_port); plog(XLOG_DEBUG, "NA->addr.sin_addr = \"%s\"", get_hex_string(sizeof(struct in_addr), (const char *) &sap->sin_addr)); #endif /* not HAVE_TRANSPORT_TYPE_TLI */ plog(XLOG_DEBUG, "NA->hostname = \"%s\"", nap->hostname ? nap->hostname : "null"); #ifdef HAVE_FIELD_NFS_ARGS_T_NAMLEN plog(XLOG_DEBUG, "NA->namlen = %d", nap->namlen); #endif /* HAVE_FIELD_NFS_ARGS_T_NAMLEN */ #ifdef MNT2_NFS_OPT_FSNAME plog(XLOG_DEBUG, "NA->fsname = \"%s\"", nap->fsname ? nap->fsname : "null"); #endif /* MNT2_NFS_OPT_FSNAME */ #ifdef HAVE_FIELD_NFS_ARGS_T_FHSIZE plog(XLOG_DEBUG, "NA->fhsize = %d", nap->fhsize); fhlen = nap->fhsize; #endif /* HAVE_FIELD_NFS_ARGS_T_FHSIZE */ #ifdef HAVE_FIELD_NFS_ARGS_T_FH_LEN plog(XLOG_DEBUG, "NA->fh_len = %d", nap->fh_len); fhlen = nap->fh_len; #endif /* HAVE_FIELD_NFS_ARGS_T_FH_LEN */ /* * XXX: need to figure out how to correctly print file handles, * since some times they are pointers, and sometimes the real structure * is stored in nfs_args. Even if it is a pointer, it can be the actual * char[] array, or a structure containing multiple fields. */ plog(XLOG_DEBUG, "NA->filehandle = \"%s\"", get_hex_string(fhlen, (const char *) &nap->NFS_FH_FIELD)); #ifdef HAVE_FIELD_NFS_ARGS_T_SOTYPE plog(XLOG_DEBUG, "NA->sotype = %d", nap->sotype); #endif /* HAVE_FIELD_NFS_ARGS_T_SOTYPE */ #ifdef HAVE_FIELD_NFS_ARGS_T_PROTO plog(XLOG_DEBUG, "NA->proto = %d", (int) nap->proto); #endif /* HAVE_FIELD_NFS_ARGS_T_PROTO */ #ifdef HAVE_FIELD_NFS_ARGS_T_VERSION plog(XLOG_DEBUG, "NA->version = %d", nap->version); #endif /* HAVE_FIELD_NFS_ARGS_T_VERSION */ plog(XLOG_DEBUG, "NA->flags = 0x%x", (int) nap->flags); plog(XLOG_DEBUG, "NA->rsize = %d", (int) nap->rsize); plog(XLOG_DEBUG, "NA->wsize = %d", (int) nap->wsize); #ifdef HAVE_FIELD_NFS_ARGS_T_BSIZE plog(XLOG_DEBUG, "NA->bsize = %d", nap->bsize); #endif /* HAVE_FIELD_NFS_ARGS_T_BSIZE */ plog(XLOG_DEBUG, "NA->timeo = %d", (int) nap->timeo); plog(XLOG_DEBUG, "NA->retrans = %d", (int) nap->retrans); #ifdef HAVE_FIELD_NFS_ARGS_T_ACREGMIN plog(XLOG_DEBUG, "NA->acregmin = %d", (int) nap->acregmin); plog(XLOG_DEBUG, "NA->acregmax = %d", (int) nap->acregmax); plog(XLOG_DEBUG, "NA->acdirmin = %d", (int) nap->acdirmin); plog(XLOG_DEBUG, "NA->acdirmax = %d", (int) nap->acdirmax); #endif /* HAVE_FIELD_NFS_ARGS_T_ACREGMIN */ #ifdef MNTTAB_OPT_SYMTTL plog(XLOG_DEBUG, "NA->symttl = %d", nap->symttl); #endif /* MNTTAB_OPT_SYMTTL */ #ifdef MNTTAB_OPT_PG_THRESH plog(XLOG_DEBUG, "NA->pg_thresh = %d", nap->pg_thresh); #endif /* MNTTAB_OPT_PG_THRESH */ #ifdef MNT2_NFS_OPT_BIODS plog(XLOG_DEBUG, "NA->biods = %d", nap->biods); #endif /* MNT2_NFS_OPT_BIODS */ } #endif /* DEBUG */