diff options
Diffstat (limited to 'contrib/amd/libamu/mount_fs.c')
| -rw-r--r-- | contrib/amd/libamu/mount_fs.c | 892 |
1 files changed, 892 insertions, 0 deletions
diff --git a/contrib/amd/libamu/mount_fs.c b/contrib/amd/libamu/mount_fs.c new file mode 100644 index 0000000..948b18d --- /dev/null +++ b/contrib/amd/libamu/mount_fs.c @@ -0,0 +1,892 @@ +/* + * Copyright (c) 1997-1998 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 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. + * + * %W% (Berkeley) %G% + * + * $Id: mount_fs.c,v 5.2.2.2 1992/05/31 16:35:45 jsp Exp $ + * + */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif /* HAVE_CONFIG_H */ +#include <am_defs.h> +#include <amu.h> + + +/* 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) */ + + {0, 0} +}; + + +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; +} + + +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 + char buf[80]; /* buffer for sprintf */ +#endif /* DEBUG */ + +#ifdef DEBUG + sprintf(buf, "%s%s%s", + "%s fstype ", MTYPE_PRINTF_TYPE, " (%s) flags %#x (%s)"); + dlog(buf, 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-allocted 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 */ + } 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 + nap->flags |= MNT2_NFS_OPT_NOCONN; + plog(XLOG_WARNING, "noconn option exists, and was turned ON! (May cause NFS hangs on some systems...)"); +# endif /* USE_UNCONNECTED_NFS_SOCKETS */ +# ifdef USE_CONNECTED_NFS_SOCKETS + nap->flags &= ~MNT2_NFS_OPT_NOCONN; + plog(XLOG_WARNING, "noconn option exists, and was turned OFF! (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_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_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 %d", 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 above. + * 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_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 */ +} + + +#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; i<len/sizeof(short int); i++) { + sprintf(str, "%04x", ntohs(arr[i])); + strcat(buf, str); + } + return buf; +} + + +/* + * print a subset of fields from "struct nfs_args" that are otherwise + * not being provided anywhere else. + */ +void +print_nfs_args(const nfs_args_t *nap, u_long nfs_version) +{ + int fhlen = 32; /* default: NFS V.2 file handle length is 32 */ +#ifdef HAVE_TRANSPORT_TYPE_TLI + struct netbuf *nbp; + struct knetconfig *kncp; +#else /* not HAVE_TRANSPORT_TYPE_TLI */ + struct sockaddr_in *sap; +#endif /* not HAVE_TRANSPORT_TYPE_TLI */ + + if (!nap) { + plog(XLOG_DEBUG, "NULL nfs_args!"); + return; + } + + /* override default file handle size */ +#ifdef FHSIZE + fhlen = FHSIZE; +#endif /* FHSIZE */ +#ifdef NFS_FHSIZE + fhlen = NFS_FHSIZE; +#endif /* NFS_FHSIZE */ + +#ifdef HAVE_TRANSPORT_TYPE_TLI + nbp = nap->addr; + 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", 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\"", + sizeof(struct sockaddr_in), + get_hex_string(sizeof(struct sockaddr_in), (const char *)sap)); +#ifdef HAVE_FIELD_STRUCT_SOCKADDR_SA_LEN_off + 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 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", 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", nap->flags); + + plog(XLOG_DEBUG, "NA->rsize = %d", nap->rsize); + plog(XLOG_DEBUG, "NA->wsize = %d", nap->wsize); + plog(XLOG_DEBUG, "NA->timeo = %d", nap->timeo); + plog(XLOG_DEBUG, "NA->retrans = %d", nap->retrans); + +#ifdef HAVE_FIELD_NFS_ARGS_T_ACREGMIN + plog(XLOG_DEBUG, "NA->acregmin = %d", nap->acregmin); + plog(XLOG_DEBUG, "NA->acregmax = %d", nap->acregmax); + plog(XLOG_DEBUG, "NA->acdirmin = %d", nap->acdirmin); + plog(XLOG_DEBUG, "NA->acdirmax = %d", 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 */ |
