/*
* This readdir function which call a special version of it that allows
* browsing if browsable_dirs=yes was set on the map.
*/
int
amfs_generic_readdir(am_node *mp, voidp cookie, voidp dp, voidp ep, u_int count)
{
int browsable, full;
/* check if map is browsable */
browsable = 0;
if (mp->am_al->al_mnt && mp->am_al->al_mnt->mf_mopts) {
mntent_t mnt;
mnt.mnt_opts = mp->am_al->al_mnt->mf_mopts;
if (amu_hasmntopt(&mnt, "fullybrowsable"))
browsable = 2;
else if (amu_hasmntopt(&mnt, "browsable"))
browsable = 1;
}
full = (browsable == 2);
if (nfs_dispatcher == nfs_program_2) {
if (browsable)
return amfs_readdir_browsable(mp, cookie, dp, ep, count, full);
else
return amfs_readdir(mp, cookie, dp, ep, count);
} else {
if (browsable)
return amfs_readdir3_browsable(mp, (am_cookie3) (uintptr_t) cookie, dp, ep, count, full);
else
return amfs_readdir3(mp, (am_cookie3) (uintptr_t) cookie, dp, ep, count);
}
}
/*
* start with an empty string. for each opts1 option that is not
* in opts2, add it to the string (make sure the reverse of it
* isn't in either). finally add opts2. return new string.
* Both opts1 and opts2 must not be null!
* Caller must eventually free the string being returned.
*/
static char *
merge_opts(const char *opts1, const char *opts2)
{
mntent_t mnt2; /* place holder for opts2 */
char *newstr; /* new string to return (malloc'ed) */
char *tmpstr; /* temp */
char *eq; /* pointer to whatever follows '=' within temp */
char oneopt[80]; /* one option w/o value if any */
char *revoneopt; /* reverse of oneopt */
size_t len = strlen(opts1) + strlen(opts2) + 2; /* space for "," and NULL */
char *s1 = strdup(opts1); /* copy of opts1 to munge */
/* initialization */
mnt2.mnt_opts = (char *) opts2;
newstr = xmalloc(len);
newstr[0] = '\0';
for (tmpstr = strtok(s1, ",");
tmpstr;
tmpstr = strtok(NULL, ",")) {
/* copy option to temp buffer */
xstrlcpy(oneopt, tmpstr, sizeof(oneopt));
/* if option has a value such as rsize=1024, chop the value part */
if ((eq = haseq(oneopt)))
*eq = '\0';
/* find reverse option of oneopt */
revoneopt = reverse_option(oneopt);
/* if option orits reverse exist in opts2, ignore it */
if (amu_hasmntopt(&mnt2, oneopt) || amu_hasmntopt(&mnt2, revoneopt))
continue;
/* add option to returned string */
if (newstr[0]) {
xstrlcat(newstr, ",", len);
xstrlcat(newstr, tmpstr, len);
} else {
xstrlcpy(newstr, tmpstr, len);
}
}
/* finally, append opts2 itself */
if (newstr[0]) {
xstrlcat(newstr, ",", len);
xstrlcat(newstr, opts2, len);
} else {
xstrlcpy(newstr, opts2, len);
}
XFREE(s1);
return newstr;
}
/*
* Utility routine which returns the string value of
* an option in the mount options (such as proto=udp).
* Returns NULL if the option is not specified.
* Returns malloc'ed string (caller must free!)
*/
char *
hasmntstr(mntent_t *mnt, char *opt)
{
char *str = amu_hasmntopt(mnt, opt);
if (str) { /* The option was there */
char *eq = hasmnteq(mnt, opt);
if (eq) { /* and had an = after it */
char *endptr = strchr(eq, ',');
/* if saw no comma, return strdup'd string */
if (!endptr)
return strdup(eq);
else {
/* else we need to copy only the chars needed */
int len = endptr - eq;
char *buf = xmalloc(len + 1);
strncpy(buf, eq, len);
buf[len] = '\0';
return buf;
}
}
}
return NULL;
}
nfsstatfsres *
nfsproc_statfs_2_svc(am_nfs_fh *argp, struct svc_req *rqstp)
{
static nfsstatfsres res;
am_node *mp;
int retry;
mntent_t mnt;
if (amuDebug(D_TRACE))
plog(XLOG_DEBUG, "statfs:");
mp = fh_to_mp3(argp, &retry, VLOOK_CREATE);
if (mp == NULL) {
if (retry < 0) {
amd_stats.d_drops++;
return 0;
}
res.sfr_status = nfs_error(retry);
} else {
nfsstatfsokres *fp;
if (amuDebug(D_TRACE))
plog(XLOG_DEBUG, "\tstat_fs(%s)", mp->am_path);
/*
* just return faked up file system information
*/
fp = &res.sfr_u.sfr_reply_u;
fp->sfrok_tsize = 1024;
fp->sfrok_bsize = 1024;
/* check if map is browsable and show_statfs_entries=yes */
if ((gopt.flags & CFM_SHOW_STATFS_ENTRIES) &&
mp->am_al->al_mnt && mp->am_al->al_mnt->mf_mopts) {
mnt.mnt_opts = mp->am_al->al_mnt->mf_mopts;
if (amu_hasmntopt(&mnt, "browsable")) {
count_map_entries(mp,
&fp->sfrok_blocks,
&fp->sfrok_bfree,
&fp->sfrok_bavail);
}
} else {
fp->sfrok_blocks = 0; /* set to 1 if you don't want empty automounts */
fp->sfrok_bfree = 0;
fp->sfrok_bavail = 0;
}
res.sfr_status = NFS_OK;
mp->am_stats.s_statfs++;
}
return &res;
}
/*
* Utility routine which returns a pointer to whatever
* follows an = in a mount option. Returns null if option
* doesn't exist or doesn't have an '='. Won't fail for opt,foo=.
*/
char *
hasmnteq(mntent_t *mnt, char *opt)
{
if (mnt && opt) { /* disallow null input pointers */
if ( *opt ) { /* disallow the null string as an opt */
char *str = amu_hasmntopt(mnt, opt);
if ( str ) { /* option was there */
char *eq = str + strlen(opt); /* Look at char just after option */
if (*eq == '=') /* Is it '=' ? */
return ++eq; /* If so, return pointer to remaining str */
}
}
}
return NULL;
}
/*
* Utility routine which determines the value of a numeric option in the
* mount options (such as port=%d), and fills in the value in the argument
* valp (argument won't be touched if no value is set, for example due to an
* error).
*
* Returns non-zero (1) on error; returns 0 on success.
*
* XXX: eventually, all use of hasmntval() should be replaced with
* hasmntvalerr().
*/
unsigned int
hasmntvalerr(mntent_t *mnt, char *opt, int *valp)
{
char *str = amu_hasmntopt(mnt, opt);
int err = 1; /* 1 means no good value was set (an error) */
char *eq, *endptr;
long int i;
/* exit if no option specificed */
if (!str) {
goto out;
}
eq = hasmnteq(mnt, opt);
if (!eq) { /* no argument to option ('=' sign was missing) */
plog(XLOG_MAP, "numeric option to \"%s\" missing", opt);
goto out;
}
/* if got here, then we had an '=' after option name */
endptr = NULL;
i = strtol(eq, &endptr, 0); /* hex and octal allowed ;-) */
if (!endptr ||
(endptr != eq && (*endptr == ',' || *endptr == '\0'))) {
/*
* endptr set means strtol saw a non-digit. If the non-digit is a
* comma, it's probably the start of the next option. If the comma is
* the first char though, complain about it (foo=,bar is made
* noticeable by this).
*
* Similar reasoning for '\0' instead of comma, it's the end of the
* string.
*/
*valp = (int) i; /* set good value */
err = 0; /* no error */
} else {
/* whatever was after the '=' sign wasn't a number */
plog(XLOG_MAP, "invalid numeric option in \"%s\": \"%s\"", opt, str);
/* fall through to error/exit processing */
}
out:
return err;
}
/* compute generic mount flags */
int
compute_mount_flags(mntent_t *mntp)
{
struct opt_tab *opt;
int flags = 0;
#ifdef MNT2_GEN_OPT_NEWTYPE
flags |= MNT2_GEN_OPT_NEWTYPE;
#endif /* MNT2_GEN_OPT_NEWTYPE */
#ifdef MNT2_GEN_OPT_AUTOMOUNTED
flags |= MNT2_GEN_OPT_AUTOMOUNTED;
#endif /* not MNT2_GEN_OPT_AUTOMOUNTED */
/*
* Crack basic mount options
*/
for (opt = mnt_flags; opt->opt; opt++) {
flags |= amu_hasmntopt(mntp, opt->opt) ? opt->flag : 0;
}
return flags;
}
static int
mount_udf(char *mntdir, char *fs_name, char *opts, int on_autofs)
{
udf_args_t udf_args;
mntent_t mnt;
int flags;
char *str;
#if defined(HAVE_UDF_ARGS_T_NOBODY_UID) || defined(HAVE_UDF_ARGS_T_ANON_UID)
uid_t uid_nobody;
gid_t gid_nobody;
#endif /* defined(HAVE_UDF_ARGS_T_NOBODY_UID) || defined(HAVE_UDF_ARGS_T_ANON_UID) */
/*
* Figure out the name of the file system type.
*/
MTYPE_TYPE type = MOUNT_TYPE_UDF;
#if defined(HAVE_UDF_ARGS_T_NOBODY_UID) || defined(HAVE_UDF_ARGS_T_ANON_UID)
uid_nobody = a_uid("nobody", "user");
if (uid_nobody == 0) {
plog(XLOG_ERROR, "mount_udf: invalid uid for nobody");
return EPERM;
}
#endif /* defined(HAVE_UDF_ARGS_T_NOBODY_UID) || defined(HAVE_UDF_ARGS_T_ANON_UID) */
#if defined(HAVE_UDF_ARGS_T_NOBODY_GID) || defined(HAVE_UDF_ARGS_T_ANON_GID)
gid_nobody = a_gid("nobody", "group");
if (gid_nobody == 0) {
plog(XLOG_ERROR, "mount_udf: invalid gid for nobody");
return EPERM;
}
#endif /* defined(HAVE_UDF_ARGS_T_NOBODY_GID) || defined(HAVE_UDF_ARGS_T_ANON_GID) */
str = NULL;
memset((voidp) &udf_args, 0, sizeof(udf_args)); /* Paranoid */
/*
* Fill in the mount structure
*/
memset((voidp)&mnt, 0, sizeof(mnt));
mnt.mnt_dir = mntdir;
mnt.mnt_fsname = fs_name;
mnt.mnt_type = MNTTAB_TYPE_UDF;
mnt.mnt_opts = opts;
flags = compute_mount_flags(&mnt);
#ifdef HAVE_UDF_ARGS_T_UDFMFLAGS
# if defined(MNT2_UDF_OPT_CLOSESESSION) && defined(MNTTAB_OPT_CLOSESESSION)
if (amu_hasmntopt(&mnt, MNTTAB_OPT_CLOSESESSION))
udf_args.udfmflags |= MNT2_UDF_OPT_CLOSESESSION;
# endif /* defined(MNT2_UDF_OPT_CLOSESESSION) && defined(MNTTAB_OPT_CLOSESESSION) */
#endif /* HAVE_UDF_ARGS_T_UDFMFLAGS */
#ifdef HAVE_UDF_ARGS_T_NOBODY_UID
udf_args.nobody_uid = uid_nobody;
#endif /* HAVE_UDF_ARGS_T_NOBODY_UID */
#ifdef HAVE_UDF_ARGS_T_NOBODY_GID
udf_args.nobody_gid = gid_nobody;
#endif /* HAVE_UDF_ARGS_T_NOBODY_GID */
#ifdef HAVE_UDF_ARGS_T_ANON_UID
udf_args.anon_uid = uid_nobody; /* default to nobody */
if ((str = hasmntstr(&mnt, MNTTAB_OPT_USER)) != NULL) {
udf_args.anon_uid = a_uid(str, MNTTAB_OPT_USER);
XFREE(str);
}
#endif /* HAVE_UDF_ARGS_T_ANON_UID */
#ifdef HAVE_UDF_ARGS_T_ANON_GID
udf_args.anon_gid = gid_nobody; /* default to nobody */
if ((str = hasmntstr(&mnt, MNTTAB_OPT_GROUP)) != NULL) {
udf_args.anon_gid = a_gid(str, MNTTAB_OPT_GROUP);
XFREE(str);
}
#endif /* HAVE_UDF_ARGS_T_ANON_GID */
#ifdef HAVE_UDF_ARGS_T_GMTOFF
udf_args.gmtoff = 0;
if ((str = hasmntstr(&mnt, MNTTAB_OPT_GMTOFF)) != NULL) {
udf_args.gmtoff = a_num(str, MNTTAB_OPT_GMTOFF);
XFREE(str);
}
#endif /* HAVE_UDF_ARGS_T_GMTOFF */
#ifdef HAVE_UDF_ARGS_T_SESSIONNR
udf_args.sessionnr = 0;
if ((str = hasmntstr(&mnt, MNTTAB_OPT_SESSIONNR)) != NULL) {
udf_args.sessionnr = a_num(str, MNTTAB_OPT_SESSIONNR);
XFREE(str);
}
#endif /* HAVE_UDF_ARGS_T_SESSIONNR */
#ifdef HAVE_UDF_ARGS_T_VERSION
# ifdef UDFMNT_VERSION
udf_args.version = UDFMNT_VERSION;
# endif /* UDFMNT_VERSION */
#endif /* HAVE_UDF_ARGS_T_VERSION */
#ifdef HAVE_UFS_ARGS_T_FSPEC
udf_args.fspec = fs_name;
#endif /* HAVE_UFS_ARGS_T_FSPEC */
/*
* Call generic mount routine
*/
return mount_fs(&mnt, flags, (caddr_t)&udf_args, 0, type, 0, NULL,
mnttab_file_name, on_autofs);
}
/*
* This readdir function which call a special version of it that allows
* browsing if browsable_dirs=yes was set on the map.
*/
int
amfs_generic_readdir(am_node *mp, nfscookie cookie, nfsdirlist *dp, nfsentry *ep, u_int count)
{
u_int gen = *(u_int *) cookie;
am_node *xp;
mntent_t mnt;
dp->dl_eof = FALSE; /* assume readdir not done */
/* check if map is browsable */
if (mp->am_al->al_mnt && mp->am_al->al_mnt->mf_mopts) {
mnt.mnt_opts = mp->am_al->al_mnt->mf_mopts;
if (amu_hasmntopt(&mnt, "fullybrowsable"))
return amfs_readdir_browsable(mp, cookie, dp, ep, count, TRUE);
if (amu_hasmntopt(&mnt, "browsable"))
return amfs_readdir_browsable(mp, cookie, dp, ep, count, FALSE);
}
/* when gen is 0, we start reading from the beginning of the directory */
if (gen == 0) {
/*
* In the default instance (which is used to start a search) we return
* "." and "..".
*
* This assumes that the count is big enough to allow both "." and ".."
* to be returned in a single packet. If it isn't (which would be
* fairly unbelievable) then tough.
*/
dlog("amfs_generic_readdir: default search");
/*
* Check for enough room. This is extremely approximate but is more
* than enough space. Really need 2 times:
* 4byte fileid
* 4byte cookie
* 4byte name length
* 4byte name
* plus the dirlist structure */
if (count < (2 * (2 * (sizeof(*ep) + sizeof("..") + 4) + sizeof(*dp))))
return EINVAL;
xp = next_nonerror_node(mp->am_child);
dp->dl_entries = ep;
/* construct "." */
ep[0].ne_fileid = mp->am_gen;
ep[0].ne_name = ".";
ep[0].ne_nextentry = &ep[1];
(void)memset(ep[0].ne_cookie, 0, sizeof(u_int));
/* construct ".." */
if (mp->am_parent)
ep[1].ne_fileid = mp->am_parent->am_gen;
else
ep[1].ne_fileid = mp->am_gen;
ep[1].ne_name = "..";
ep[1].ne_nextentry = NULL;
(void)memcpy(ep[1].ne_cookie, (xp ? &xp->am_gen : &dotdotcookie),
sizeof(dotdotcookie));
if (!xp)
dp->dl_eof = TRUE; /* by default assume readdir done */
if (amuDebug(D_READDIR)) {
nfsentry *ne;
int j;
for (j = 0, ne = ep; ne; ne = ne->ne_nextentry) {
u_int cookie;
(void)memcpy(&cookie, ne->ne_cookie, sizeof(cookie));
plog(XLOG_DEBUG, "gen1 key %4d \"%s\" fi=%d ck=%d",
j++, ne->ne_name, ne->ne_fileid, cookie);
}
}
return 0;
}
dlog("amfs_generic_readdir: real child");
if (gen == DOT_DOT_COOKIE) {
dlog("amfs_generic_readdir: End of readdir in %s", mp->am_path);
dp->dl_eof = TRUE;
dp->dl_entries = NULL;
if (amuDebug(D_READDIR))
plog(XLOG_DEBUG, "end of readdir eof=TRUE, dl_entries=0\n");
return 0;
}
/* non-browsable directories code */
xp = mp->am_child;
while (xp && xp->am_gen != gen)
xp = xp->am_osib;
if (xp) {
int nbytes = count / 2; /* conservative */
int todo = MAX_READDIR_ENTRIES;
dp->dl_entries = ep;
do {
am_node *xp_next = next_nonerror_node(xp->am_osib);
if (xp_next) {
(void)memcpy(ep->ne_cookie, &xp_next->am_gen, sizeof(xp_next->am_gen));
} else {
(void)memcpy(ep->ne_cookie, &dotdotcookie, sizeof(dotdotcookie));
dp->dl_eof = TRUE;
}
ep->ne_fileid = xp->am_gen;
ep->ne_name = xp->am_name;
nbytes -= sizeof(*ep) + 1;
if (xp->am_name)
nbytes -= strlen(xp->am_name);
xp = xp_next;
if (nbytes > 0 && !dp->dl_eof && todo > 1) {
ep->ne_nextentry = ep + 1;
ep++;
--todo;
} else {
todo = 0;
}
} while (todo > 0);
ep->ne_nextentry = NULL;
if (amuDebug(D_READDIR)) {
nfsentry *ne;
int j;
for (j=0,ne=ep; ne; ne=ne->ne_nextentry) {
u_int cookie;
(void)memcpy(&cookie, ne->ne_cookie, sizeof(cookie));
plog(XLOG_DEBUG, "gen2 key %4d \"%s\" fi=%d ck=%d",
j++, ne->ne_name, ne->ne_fileid, cookie);
}
}
return 0;
}
return ESTALE;
}
static int
mount_cdfs(char *mntdir, char *fs_name, char *opts, int on_autofs)
{
cdfs_args_t cdfs_args;
mntent_t mnt;
int genflags, cdfs_flags, retval;
/*
* Figure out the name of the file system type.
*/
MTYPE_TYPE type = MOUNT_TYPE_CDFS;
memset((voidp) &cdfs_args, 0, sizeof(cdfs_args)); /* Paranoid */
cdfs_flags = 0;
/*
* Fill in the mount structure
*/
memset((voidp) &mnt, 0, sizeof(mnt));
mnt.mnt_dir = mntdir;
mnt.mnt_fsname = fs_name;
mnt.mnt_type = MNTTAB_TYPE_CDFS;
mnt.mnt_opts = opts;
#if defined(MNT2_CDFS_OPT_DEFPERM) && defined(MNTTAB_OPT_DEFPERM)
if (amu_hasmntopt(&mnt, MNTTAB_OPT_DEFPERM))
# ifdef MNT2_CDFS_OPT_DEFPERM
cdfs_flags |= MNT2_CDFS_OPT_DEFPERM;
# else /* not MNT2_CDFS_OPT_DEFPERM */
cdfs_flags &= ~MNT2_CDFS_OPT_NODEFPERM;
# endif /* not MNT2_CDFS_OPT_DEFPERM */
#endif /* defined(MNT2_CDFS_OPT_DEFPERM) && defined(MNTTAB_OPT_DEFPERM) */
#if defined(MNT2_CDFS_OPT_NODEFPERM) && defined(MNTTAB_OPT_NODEFPERM)
if (amu_hasmntopt(&mnt, MNTTAB_OPT_NODEFPERM))
cdfs_flags |= MNT2_CDFS_OPT_NODEFPERM;
#endif /* MNTTAB_OPT_NODEFPERM */
#if defined(MNT2_CDFS_OPT_NOVERSION) && defined(MNTTAB_OPT_NOVERSION)
if (amu_hasmntopt(&mnt, MNTTAB_OPT_NOVERSION))
cdfs_flags |= MNT2_CDFS_OPT_NOVERSION;
#endif /* defined(MNT2_CDFS_OPT_NOVERSION) && defined(MNTTAB_OPT_NOVERSION) */
#if defined(MNT2_CDFS_OPT_RRIP) && defined(MNTTAB_OPT_RRIP)
if (amu_hasmntopt(&mnt, MNTTAB_OPT_RRIP))
cdfs_flags |= MNT2_CDFS_OPT_RRIP;
#endif /* defined(MNT2_CDFS_OPT_RRIP) && defined(MNTTAB_OPT_RRIP) */
#if defined(MNT2_CDFS_OPT_NORRIP) && defined(MNTTAB_OPT_NORRIP)
if (amu_hasmntopt(&mnt, MNTTAB_OPT_NORRIP))
cdfs_flags |= MNT2_CDFS_OPT_NORRIP;
#endif /* defined(MNT2_CDFS_OPT_NORRIP) && defined(MNTTAB_OPT_NORRIP) */
#if defined(MNT2_CDFS_OPT_GENS) && defined(MNTTAB_OPT_GENS)
if (amu_hasmntopt(&mnt, MNTTAB_OPT_GENS))
cdfs_flags |= MNT2_CDFS_OPT_GENS;
#endif /* defined(MNT2_CDFS_OPT_GENS) && defined(MNTTAB_OPT_GENS) */
#if defined(MNT2_CDFS_OPT_EXTATT) && defined(MNTTAB_OPT_EXTATT)
if (amu_hasmntopt(&mnt, MNTTAB_OPT_EXTATT))
cdfs_flags |= MNT2_CDFS_OPT_EXTATT;
#endif /* defined(MNT2_CDFS_OPT_EXTATT) && defined(MNTTAB_OPT_EXTATT) */
genflags = compute_mount_flags(&mnt);
#ifdef HAVE_FS_AUTOFS
if (on_autofs)
genflags |= autofs_compute_mount_flags(&mnt);
#endif /* HAVE_FS_AUTOFS */
#ifdef HAVE_CDFS_ARGS_T_FLAGS
cdfs_args.flags = cdfs_flags;
#endif /* HAVE_CDFS_ARGS_T_FLAGS */
#ifdef HAVE_CDFS_ARGS_T_ISO_FLAGS
cdfs_args.iso_flags = genflags | cdfs_flags;
#endif /* HAVE_CDFS_ARGS_T_ISO_FLAGS */
#ifdef HAVE_CDFS_ARGS_T_ISO_PGTHRESH
cdfs_args.iso_pgthresh = hasmntval(&mnt, MNTTAB_OPT_PGTHRESH);
#endif /* HAVE_CDFS_ARGS_T_ISO_PGTHRESH */
#ifdef HAVE_CDFS_ARGS_T_NORRIP
/* XXX: need to provide norrip mount opt */
cdfs_args.norrip = 0; /* use Rock-Ridge Protocol extensions */
#endif /* HAVE_CDFS_ARGS_T_NORRIP */
#ifdef HAVE_CDFS_ARGS_T_SSECTOR
/* XXX: need to provide ssector mount option */
cdfs_args.ssector = 0; /* use 1st session on disk */
#endif /* HAVE_CDFS_ARGS_T_SSECTOR */
#ifdef HAVE_CDFS_ARGS_T_FSPEC
cdfs_args.fspec = fs_name;
#endif /* HAVE_CDFS_ARGS_T_FSPEC */
/*
* Call generic mount routine
*/
retval = mount_fs(&mnt, genflags, (caddr_t) &cdfs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs);
return retval;
}
/*
* 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
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)
{
/* initialize just in case */
memset((voidp) nap, 0, sizeof(nfs_args_t));
/* compute all of the NFS attribute-cache flags */
compute_nfs_attrcache_flags(nap, mntp);
/************************************************************************/
/*** FILEHANDLE DATA AND LENGTH ***/
/************************************************************************/
#ifdef HAVE_FS_NFS3
if (nfs_version == NFS_VERSION3) {
# if defined(HAVE_NFS_ARGS_T_FHSIZE) || defined(HAVE_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, &fhp->v3.am_fh3_data);
# else /* not defined(HAVE_NFS_ARGS_T_FHSIZE) || defined(HAVE_NFS_ARGS_T_FH_LEN) */
NFS_FH_DREF(nap->NFS_FH_FIELD, &fhp->v3);
# endif /* not defined(HAVE_NFS_ARGS_T_FHSIZE) || defined(HAVE_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);
#ifdef HAVE_NFS_ARGS_T_FHSIZE
# ifdef HAVE_FS_NFS3
if (nfs_version == NFS_VERSION3)
nap->fhsize = fhp->v3.am_fh3_length;
else
# endif /* HAVE_FS_NFS3 */
nap->fhsize = FHSIZE;
#endif /* HAVE_NFS_ARGS_T_FHSIZE */
/* this is the version of the nfs_args structure, not of NFS! */
#ifdef HAVE_NFS_ARGS_T_FH_LEN
# ifdef HAVE_FS_NFS3
if (nfs_version == NFS_VERSION3)
nap->fh_len = fhp->v3.am_fh3_length;
else
# endif /* HAVE_FS_NFS3 */
nap->fh_len = FHSIZE;
#endif /* HAVE_NFS_ARGS_T_FH_LEN */
/************************************************************************/
/*** HOST NAME ***/
/************************************************************************/
/*
* XXX: warning, using xstrlcpy in NFS_HN_DREF, which may corrupt a
* struct nfs_args, or truncate our concocted "hostname:/path"
* string prematurely.
*/
NFS_HN_DREF(nap->hostname, host_name);
#ifdef MNT2_NFS_OPT_HOSTNAME
nap->flags |= MNT2_NFS_OPT_HOSTNAME;
#endif /* MNT2_NFS_OPT_HOSTNAME */
/************************************************************************/
/*** 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_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_NFS_ARGS_T_SOTYPE */
#ifdef HAVE_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_NFS_ARGS_T_SOTYPE */
#ifdef HAVE_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_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 (amu_hasmntopt(mntp, MNTTAB_OPT_NOCONN) != NULL)
nap->flags |= MNT2_NFS_OPT_NOCONN;
else if (amu_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 (amu_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 */
if (nfs_version == NFS_VERSION && nap->rsize > 8192)
nap->rsize = 8192;
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 */
if (nfs_version == NFS_VERSION && nap->wsize > 8192)
nap->wsize = 8192;
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 */
#ifdef MNT2_NFS_OPT_SOFT
if (amu_hasmntopt(mntp, MNTTAB_OPT_SOFT) != NULL)
nap->flags |= MNT2_NFS_OPT_SOFT;
#endif /* MNT2_NFS_OPT_SOFT */
#ifdef MNT2_NFS_OPT_SPONGY
if (amu_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 (amu_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 (amu_hasmntopt(mntp, MNTTAB_OPT_NODEVS) != NULL)
nap->flags |= MNT2_NFS_OPT_NODEVS;
#endif /* MNTTAB_OPT_NODEVS */
#ifdef MNTTAB_OPT_COMPRESS
if (amu_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 (amu_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 (amu_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 (amu_hasmntopt(mntp, MNTTAB_OPT_POSIX) != NULL) {
nap->flags |= MNT2_NFS_OPT_POSIX;
# ifdef HAVE_NFS_ARGS_T_PATHCONF
nap->pathconf = NULL;
# endif /* HAVE_NFS_ARGS_T_PATHCONF */
}
#endif /* MNT2_NFS_OPT_POSIX && MNTTAB_OPT_POSIX */
#if defined(MNT2_NFS_OPT_PROPLIST) && defined(MNTTAB_OPT_PROPLIST)
if (amu_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 != 0)
nap->flags |= MNT2_NFS_OPT_MAXGRPS;
#endif /* defined(MNT2_NFS_OPT_MAXGRPS) && defined(MNTTAB_OPT_MAXGROUPS) */
#if defined(MNT2_NFS_OPT_NONLM) && defined(MNTTAB_OPT_NOLOCK)
if (amu_hasmntopt(mntp, MNTTAB_OPT_NOLOCK) != NULL)
nap->flags |= MNT2_NFS_OPT_NONLM;
#endif /* defined(MNT2_NFS_OPT_NONLM) && defined(MNTTAB_OPT_NOLOCK) */
#if defined(MNT2_NFS_OPT_XLATECOOKIE) && defined(MNTTAB_OPT_XLATECOOKIE)
if (amu_hasmntopt(mntp, MNTTAB_OPT_XLATECOOKIE) != NULL)
nap->flags |= MNT2_NFS_OPT_XLATECOOKIE;
#endif /* defined(MNT2_NFS_OPT_XLATECOOKIE) && defined(MNTTAB_OPT_XLATECOOKIE) */
#ifdef HAVE_NFS_ARGS_T_OPTSTR
nap->optstr = mntp->mnt_opts;
#endif /* HAVE_NFS_ARGS_T_OPTSTR */
/************************************************************************/
/*** FINAL ACTIONS ***/
/************************************************************************/
#ifdef HAVE_NFS_ARGS_T_GFS_FLAGS
/* Ultrix stores generic flags in nfs_args.gfs_flags. */
nap->gfs_flags = genflags;
#endif /* HAVE_NFS_ARGS_T_FLAGS */
return; /* end of compute_nfs_args() function */
}
/*
* Compute all NFS attribute cache related flags separately. Note that this
* function now computes attribute-cache flags for both Amd's automount
* points (NFS) as well as any normal NFS mount that Amd performs. Edit
* with caution.
*/
static void
compute_nfs_attrcache_flags(nfs_args_t *nap, mntent_t *mntp)
{
int acval = 0;
int err_acval = 1; /* 1 means we found no 'actimeo' value */
#if defined(HAVE_NFS_ARGS_T_ACREGMIN) || defined(HAVE_NFS_ARGS_T_ACREGMAX) || defined(HAVE_NFS_ARGS_T_ACDIRMIN) || defined(HAVE_NFS_ARGS_T_ACDIRMAX)
int err_acrdmm; /* for ac{reg,dir}{min,max} */
#endif /* HAVE_NFS_ARGS_T_AC{REG,DIR}{MIN,MAX} */
/************************************************************************/
/*** ATTRIBUTE CACHES ***/
/************************************************************************/
/*
* acval is set to 0 at the top of the function. If actimeo mount option
* exists and defined in mntopts, then its 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
err_acval = hasmntvalerr(mntp, MNTTAB_OPT_ACTIMEO, &acval); /* attr cache timeout (sec) */
#endif /* MNTTAB_OPT_ACTIMEO */
/*** acregmin ***/
#ifdef HAVE_NFS_ARGS_T_ACREGMIN
err_acrdmm = 1; /* 1 means we found no acregmin value */
if (!err_acval) {
nap->acregmin = acval; /* min ac timeout for reg files (sec) */
} else {
# ifdef MNTTAB_OPT_ACREGMIN
err_acrdmm = hasmntvalerr(mntp, MNTTAB_OPT_ACREGMIN, (int *) &nap->acregmin);
# else /* not MNTTAB_OPT_ACREGMIN */
nap->acregmin = 0;
# endif /* not MNTTAB_OPT_ACREGMIN */
}
/* set this flag iff we changed acregmin (possibly to zero) */
# ifdef MNT2_NFS_OPT_ACREGMIN
if (!err_acval || !err_acrdmm)
nap->flags |= MNT2_NFS_OPT_ACREGMIN;
# endif /* MNT2_NFS_OPT_ACREGMIN */
#endif /* HAVE_NFS_ARGS_T_ACREGMIN */
/*** acregmax ***/
#ifdef HAVE_NFS_ARGS_T_ACREGMAX
err_acrdmm = 1; /* 1 means we found no acregmax value */
if (!err_acval) {
nap->acregmax = acval; /* max ac timeout for reg files (sec) */
} else {
# ifdef MNTTAB_OPT_ACREGMAX
err_acrdmm = hasmntvalerr(mntp, MNTTAB_OPT_ACREGMAX, (int *) &nap->acregmax);
# else /* not MNTTAB_OPT_ACREGMAX */
nap->acregmax = 0;
# endif /* not MNTTAB_OPT_ACREGMAX */
}
/* set this flag iff we changed acregmax (possibly to zero) */
# ifdef MNT2_NFS_OPT_ACREGMAX
if (!err_acval || !err_acrdmm)
nap->flags |= MNT2_NFS_OPT_ACREGMAX;
# endif /* MNT2_NFS_OPT_ACREGMAX */
#endif /* HAVE_NFS_ARGS_T_ACREGMAX */
/*** acdirmin ***/
#ifdef HAVE_NFS_ARGS_T_ACDIRMIN
err_acrdmm = 1; /* 1 means we found no acdirmin value */
if (!err_acval) {
nap->acdirmin = acval; /* min ac timeout for dirs (sec) */
} else {
# ifdef MNTTAB_OPT_ACDIRMIN
err_acrdmm = hasmntvalerr(mntp, MNTTAB_OPT_ACDIRMIN, (int *) &nap->acdirmin);
# else /* not MNTTAB_OPT_ACDIRMIN */
nap->acdirmin = 0;
# endif /* not MNTTAB_OPT_ACDIRMIN */
}
/* set this flag iff we changed acdirmin (possibly to zero) */
# ifdef MNT2_NFS_OPT_ACDIRMIN
if (!err_acval || !err_acrdmm)
nap->flags |= MNT2_NFS_OPT_ACDIRMIN;
# endif /* MNT2_NFS_OPT_ACDIRMIN */
#endif /* HAVE_NFS_ARGS_T_ACDIRMIN */
/*** acdirmax ***/
#ifdef HAVE_NFS_ARGS_T_ACDIRMAX
err_acrdmm = 1; /* 1 means we found no acdirmax value */
if (!err_acval) {
nap->acdirmax = acval; /* max ac timeout for dirs (sec) */
} else {
# ifdef MNTTAB_OPT_ACDIRMAX
err_acrdmm = hasmntvalerr(mntp, MNTTAB_OPT_ACDIRMAX, (int *) &nap->acdirmax);
# else /* not MNTTAB_OPT_ACDIRMAX */
nap->acdirmax = 0;
# endif /* not MNTTAB_OPT_ACDIRMAX */
}
/* set this flag iff we changed acdirmax (possibly to zero) */
# ifdef MNT2_NFS_OPT_ACDIRMAX
if (!err_acval || !err_acrdmm)
nap->flags |= MNT2_NFS_OPT_ACDIRMAX;
# endif /* MNT2_NFS_OPT_ACDIRMAX */
#endif /* HAVE_NFS_ARGS_T_ACDIRMAX */
/* don't cache attributes */
#if defined(MNTTAB_OPT_NOAC) && defined(MNT2_NFS_OPT_NOAC)
if (amu_hasmntopt(mntp, MNTTAB_OPT_NOAC) != NULL)
nap->flags |= MNT2_NFS_OPT_NOAC;
#endif /* defined(MNTTAB_OPT_NOAC) && defined(MNT2_NFS_OPT_NOAC) */
(void)err_acval;
}
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 on_autofs)
{
int error = 0;
#ifdef MOUNT_TABLE_ON_FILE
char *zopts = NULL, *xopts = NULL;
size_t l;
#endif /* MOUNT_TABLE_ON_FILE */
char *mnt_dir = NULL;
#ifdef NEED_AUTOFS_SPACE_HACK
char *old_mnt_dir = NULL;
/* perform space hack */
if (on_autofs) {
old_mnt_dir = mnt->mnt_dir;
mnt->mnt_dir = mnt_dir = autofs_strdup_space_hack(old_mnt_dir);
} else
#endif /* NEED_AUTOFS_SPACE_HACK */
mnt_dir = strdup(mnt->mnt_dir);
dlog("'%s' fstype " MTYPE_PRINTF_TYPE " (%s) flags %#x (%s)",
mnt_dir, type, mnt->mnt_type, flags, mnt->mnt_opts);
again:
error = MOUNT_TRAP(type, mnt, flags, mnt_data);
if (error < 0) {
plog(XLOG_ERROR, "'%s': mount: %m", 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 == 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_dir, mnttabname, on_autofs);
if (errno != 0)
plog(XLOG_ERROR, "'%s': umount: %m", mnt_dir);
else {
plog(XLOG_WARNING, "extra umount required for '%s'", mnt_dir);
error = MOUNT_TRAP(type, mnt, flags, mnt_data);
}
}
}
if (error < 0 && --retry > 0) {
sleep(1);
goto again;
}
#ifdef NEED_AUTOFS_SPACE_HACK
/* Undo space hack */
if (on_autofs)
mnt->mnt_dir = old_mnt_dir;
#endif /* NEED_AUTOFS_SPACE_HACK */
if (error < 0) {
error = errno;
goto out;
}
#ifdef MOUNT_TABLE_ON_FILE
/*
* Allocate memory for options:
* dev=..., vers={2,3}, proto={tcp,udp}
*/
l = strlen(mnt->mnt_opts) + 48;
zopts = (char *) xmalloc(l);
/* copy standard options */
xopts = mnt->mnt_opts;
xstrlcpy(zopts, xopts, l);
# ifdef MNTTAB_OPT_DEV
{
/* add the extra dev= field to the mount table */
struct stat stb;
if (lstat(mnt_dir, &stb) == 0) {
char optsbuf[48];
if (sizeof(stb.st_dev) == 2) /* e.g. SunOS 4.1 */
xsnprintf(optsbuf, sizeof(optsbuf), "%s=%04lx",
MNTTAB_OPT_DEV, (u_long) stb.st_dev & 0xffff);
else /* e.g. System Vr4 */
xsnprintf(optsbuf, sizeof(optsbuf), "%s=%08lx",
MNTTAB_OPT_DEV, (u_long) stb.st_dev);
append_opts(zopts, l, 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) {
char optsbuf[48];
xsnprintf(optsbuf, sizeof(optsbuf),
"%s=%d", MNTTAB_OPT_VERS, NFS_VERSION3);
append_opts(zopts, l, 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 && !amu_hasmntopt(mnt, MNTTAB_OPT_PROTO)) {
char optsbuf[48];
xsnprintf(optsbuf, sizeof(optsbuf), "%s=%s", MNTTAB_OPT_PROTO, nfs_proto);
append_opts(zopts, l, 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_MNTENT_T_MNT_CNODE
mnt->mnt_cnode = 0;
# endif /* HAVE_MNTENT_T_MNT_CNODE */
# ifdef HAVE_MNTENT_T_MNT_RO
mnt->mnt_ro = (amu_hasmntopt(mnt, MNTTAB_OPT_RO) != NULL);
# endif /* HAVE_MNTENT_T_MNT_RO */
# ifdef HAVE_MNTENT_T_MNT_TIME
# ifdef HAVE_MNTENT_T_MNT_TIME_STRING
{ /* allocate enough space for a long */
size_t l = 13 * sizeof(char);
char *str = (char *) xmalloc(l);
xsnprintf(str, l, "%ld", time((time_t *) NULL));
mnt->mnt_time = str;
}
# else /* not HAVE_MNTENT_T_MNT_TIME_STRING */
mnt->mnt_time = time((time_t *) NULL);
# endif /* not HAVE_MNTENT_T_MNT_TIME_STRING */
# endif /* HAVE_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 */
out:
XFREE(mnt_dir);
return error;
}
static int
mount_tmpfs(char *mntdir, char *fs_name, char *opts, int on_autofs)
{
tmpfs_args_t tmpfs_args;
mntent_t mnt;
int flags;
const char *p;
/*
* Figure out the name of the file system type.
*/
MTYPE_TYPE type = MOUNT_TYPE_TMPFS;
p = NULL;
memset((voidp) &tmpfs_args, 0, sizeof(tmpfs_args)); /* Paranoid */
/*
* Fill in the mount structure
*/
memset((voidp) &mnt, 0, sizeof(mnt));
mnt.mnt_dir = mntdir;
mnt.mnt_fsname = fs_name;
mnt.mnt_type = MNTTAB_TYPE_TMPFS;
mnt.mnt_opts = opts;
flags = compute_mount_flags(&mnt);
#ifdef HAVE_FS_AUTOFS
if (on_autofs)
flags |= autofs_compute_mount_flags(&mnt);
#endif /* HAVE_FS_AUTOFS */
#if defined(HAVE_TMPFS_ARGS_T_TA_VERSION) && defined(TMPFS_ARGS_VERSION)
tmpfs_args.ta_version = TMPFS_ARGS_VERSION;
#endif /* HAVE_TMPFS_ARGS_T_TA_VERSION && TMPFS_ARGS_VERSION */
#ifdef HAVE_TMPFS_ARGS_T_TA_NODES_MAX
if ((p = amu_hasmntopt(&mnt, "nodes")) == NULL)
p = "1000000";
tmpfs_args.ta_nodes_max = atoi(p);
#endif /* HAVE_TMPFS_ARGS_T_TA_SIZE_MAX */
#ifdef HAVE_TMPFS_ARGS_T_TA_SIZE_MAX
if ((p = amu_hasmntopt(&mnt, "size")) == NULL)
p = "10000000";
tmpfs_args.ta_size_max = atoi(p);
#endif /* HAVE_TMPFS_ARGS_T_TA_SIZE_MAX */
#ifdef HAVE_TMPFS_ARGS_T_TA_ROOT_UID
if ((p = amu_hasmntopt(&mnt, "uid")) == NULL)
p = "0";
tmpfs_args.ta_root_uid = atoi(p);
#endif /* HAVE_TMPFS_ARGS_T_TA_ROOT_UID */
#ifdef HAVE_TMPFS_ARGS_T_TA_ROOT_GID
if ((p = amu_hasmntopt(&mnt, "gid")) == NULL)
p = "0";
tmpfs_args.ta_root_gid = atoi(p);
#endif /* HAVE_TMPFS_ARGS_T_TA_ROOT_GID */
#ifdef HAVE_TMPFS_ARGS_T_TA_ROOT_MODE
if ((p = amu_hasmntopt(&mnt, "mode")) == NULL)
p = "01777";
tmpfs_args.ta_root_mode = strtol(p, NULL, 8);
#endif /* HAVE_TMPFS_ARGS_T_TA_ROOT_MODE */
/*
* Call generic mount routine
*/
return mount_fs(&mnt, flags, (caddr_t) &tmpfs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs);
}
void
am_mounted(am_node *mp)
{
int notimeout = 0; /* assume normal timeouts initially */
mntfs *mf = mp->am_al->al_mnt;
/*
* This is the parent mntfs which does the mf->mf_fo (am_opts type), and
* we're passing TRUE here to tell mf_mounted to actually free the
* am_opts. See a related comment in mf_mounted().
*/
mf_mounted(mf, TRUE);
#ifdef HAVE_FS_AUTOFS
if (mf->mf_flags & MFF_IS_AUTOFS)
autofs_mounted(mp);
#endif /* HAVE_FS_AUTOFS */
/*
* Patch up path for direct mounts
*/
if (mp->am_parent && mp->am_parent->am_al->al_mnt->mf_fsflags & FS_DIRECT)
mp->am_path = str3cat(mp->am_path, mp->am_parent->am_path, "/", ".");
/*
* Check whether this mount should be cached permanently or not,
* and handle user-requested timeouts.
*/
/* first check if file system was set to never timeout */
if (mf->mf_fsflags & FS_NOTIMEOUT)
notimeout = 1;
/* next, alter that decision by map flags */
if (mf->mf_mopts) {
mntent_t mnt;
mnt.mnt_opts = mf->mf_mopts;
/* umount option: user wants to unmount this entry */
if (amu_hasmntopt(&mnt, "unmount") || amu_hasmntopt(&mnt, "umount"))
notimeout = 0;
/* noumount option: user does NOT want to unmount this entry */
if (amu_hasmntopt(&mnt, "nounmount") || amu_hasmntopt(&mnt, "noumount"))
notimeout = 1;
/* utimeout=N option: user wants to unmount this option AND set timeout */
if ((mp->am_timeo = hasmntval(&mnt, "utimeout")) == 0)
mp->am_timeo = gopt.am_timeo; /* otherwise use default timeout */
else
notimeout = 0;
/* special case: don't try to unmount "/" (it can never succeed) */
if (mf->mf_mount[0] == '/' && mf->mf_mount[1] == '\0')
notimeout = 1;
}
/* finally set actual flags */
if (notimeout) {
mp->am_flags |= AMF_NOTIMEOUT;
plog(XLOG_INFO, "%s set to never timeout", mp->am_path);
} else {
mp->am_flags &= ~AMF_NOTIMEOUT;
plog(XLOG_INFO, "%s set to timeout in %d seconds", mp->am_path, mp->am_timeo);
}
/*
* If this node is a symlink then
* compute the length of the returned string.
*/
if (mp->am_fattr.na_type == NFLNK)
mp->am_fattr.na_size = strlen(mp->am_link ? mp->am_link : mf->mf_mount);
/*
* Record mount time, and update am_stats at the same time.
*/
mp->am_stats.s_mtime = clocktime(&mp->am_fattr.na_mtime);
new_ttl(mp);
/*
* Update mtime of parent node (copying "struct nfstime" in '=' below)
*/
if (mp->am_parent && mp->am_parent->am_al->al_mnt)
mp->am_parent->am_fattr.na_mtime = mp->am_fattr.na_mtime;
/*
* This is ugly, but essentially unavoidable
* Sublinks must be treated separately as type==link
* when the base type is different.
*/
if (mp->am_link && mf->mf_ops != &amfs_link_ops)
amfs_link_ops.mount_fs(mp, mf);
/*
* Now, if we can, do a reply to our client here
* to speed things up.
*/
#ifdef HAVE_FS_AUTOFS
if (mp->am_flags & AMF_AUTOFS)
autofs_mount_succeeded(mp);
else
#endif /* HAVE_FS_AUTOFS */
nfs_quick_reply(mp, 0);
/*
* Update stats
*/
amd_stats.d_mok++;
}
