/*
* Mount the top-level
*/
int
amfs_toplvl_mount(am_node *mp, mntfs *mf)
{
struct stat stb;
char opts[SIZEOF_OPTS], preopts[SIZEOF_OPTS], toplvl_opts[40];
int error;
/*
* Mounting the automounter.
* Make sure the mount directory exists, construct
* the mount options and call the mount_amfs_toplvl routine.
*/
if (stat(mp->am_path, &stb) < 0) {
return errno;
} else if ((stb.st_mode & S_IFMT) != S_IFDIR) {
plog(XLOG_WARNING, "%s is not a directory", mp->am_path);
return ENOTDIR;
}
/*
* Construct some mount options:
*
* Tack on magic map=<mapname> option in mtab to emulate
* SunOS automounter behavior.
*/
#ifdef HAVE_FS_AUTOFS
if (mf->mf_flags & MFF_IS_AUTOFS) {
autofs_get_opts(opts, sizeof(opts), mp->am_autofs_fh);
} else
#endif /* HAVE_FS_AUTOFS */
{
preopts[0] = '\0';
#ifdef MNTTAB_OPT_INTR
xstrlcat(preopts, MNTTAB_OPT_INTR, sizeof(preopts));
xstrlcat(preopts, ",", sizeof(preopts));
#endif /* MNTTAB_OPT_INTR */
#ifdef MNTTAB_OPT_IGNORE
xstrlcat(preopts, MNTTAB_OPT_IGNORE, sizeof(preopts));
xstrlcat(preopts, ",", sizeof(preopts));
#endif /* MNTTAB_OPT_IGNORE */
/* write most of the initial options + preopts */
xsnprintf(opts, sizeof(opts), "%s%s,%s=%d,%s,map=%s",
preopts,
MNTTAB_OPT_RW,
MNTTAB_OPT_PORT, nfs_port,
mf->mf_ops->fs_type, mf->mf_info);
/* process toplvl timeo/retrans options, if any */
if (gopt.amfs_auto_timeo[AMU_TYPE_TOPLVL] > 0) {
xsnprintf(toplvl_opts, sizeof(toplvl_opts), ",%s=%d",
MNTTAB_OPT_TIMEO, gopt.amfs_auto_timeo[AMU_TYPE_TOPLVL]);
xstrlcat(opts, toplvl_opts, sizeof(opts));
}
if (gopt.amfs_auto_retrans[AMU_TYPE_TOPLVL] > 0) {
xsnprintf(toplvl_opts, sizeof(toplvl_opts), ",%s=%d",
MNTTAB_OPT_RETRANS, gopt.amfs_auto_retrans[AMU_TYPE_TOPLVL]);
xstrlcat(opts, toplvl_opts, sizeof(opts));
}
#ifdef MNTTAB_OPT_NOLOCK
xstrlcat(opts, ",", sizeof(opts));
xstrlcat(opts, MNTTAB_OPT_NOLOCK, sizeof(opts));
#endif /* MNTTAB_OPT_NOLOCK */
#ifdef MNTTAB_OPT_NOAC
if (gopt.auto_attrcache == 0) {
xstrlcat(opts, ",", sizeof(opts));
xstrlcat(opts, MNTTAB_OPT_NOAC, sizeof(opts));
} else
#endif /* MNTTAB_OPT_NOAC */
set_auto_attrcache_timeout(preopts, opts, sizeof(preopts));
}
/* now do the mount */
error = amfs_mount(mp, mf, opts);
if (error) {
errno = error;
plog(XLOG_FATAL, "amfs_toplvl_mount: amfs_mount failed: %m");
return error;
}
return 0;
}
/*
* Mount a sub-mount
*/
static int
amfs_auto_mount(am_node *mp, mntfs *mf)
{
/*
* Pseudo-directories are used to provide some structure
* to the automounted directories instead
* of putting them all in the top-level automount directory.
*
* Here, just increment the parent's link count.
*/
mp->am_parent->am_fattr.na_nlink++;
/*
* Info field of . means use parent's info field.
* Historical - not documented.
*/
if (mf->mf_info[0] == '.' && mf->mf_info[1] == '\0')
mf->mf_info = strealloc(mf->mf_info, mp->am_parent->am_mnt->mf_info);
/*
* Compute prefix:
*
* If there is an option prefix then use that else
* If the parent had a prefix then use that with name
* of this node appended else
* Use the name of this node.
*
* That means if you want no prefix you must say so
* in the map.
*/
if (mf->mf_fo->opt_pref) {
/* allow pref:=null to set a real null prefix */
if (STREQ(mf->mf_fo->opt_pref, "null")) {
mp->am_pref = strdup("");
} else {
/*
* the prefix specified as an option
*/
mp->am_pref = strdup(mf->mf_fo->opt_pref);
}
} else {
/*
* else the parent's prefix
* followed by the name
* followed by /
*/
char *ppref = mp->am_parent->am_pref;
if (ppref == 0)
ppref = "";
mp->am_pref = str3cat((char *) 0, ppref, mp->am_name, "/");
}
#ifdef HAVE_FS_AUTOFS
if (mf->mf_flags & MFF_IS_AUTOFS) {
char opts[SIZEOF_OPTS];
int error;
autofs_get_opts(opts, sizeof(opts), mp->am_autofs_fh);
/* now do the mount */
error = amfs_mount(mp, mf, opts);
if (error) {
errno = error;
plog(XLOG_FATAL, "amfs_auto_mount: amfs_mount failed: %m");
return error;
}
}
#endif /* HAVE_FS_AUTOFS */
/*
* Attach a map cache
*/
amfs_mkcacheref(mf);
return 0;
}
