static am_node *
amfs_direct_readlink(am_node *mp, int *error_return)
{
am_node *xp;
int rc = 0;
xp = next_nonerror_node(mp->am_child);
if (!xp) {
if (!mp->am_al->al_mnt->mf_private)
amfs_mkcacheref(mp->am_al->al_mnt);
xp = amfs_generic_lookup_child(mp, mp->am_path + 1, &rc, VLOOK_CREATE);
if (xp && rc < 0)
xp = amfs_generic_mount_child(xp, &rc);
}
if (xp) {
new_ttl(xp); /* (7/12/89) from Rein Tollevik */
return xp;
}
if (amd_state == Finishing)
rc = ENOENT;
*error_return = rc;
return 0;
}
static void
amfs_union_mounted(mntfs *mf)
{
int index;
am_node *mp;
amfs_mkcacheref(mf);
/*
* Having made the union mount point,
* populate all the entries...
*/
for (mp = get_first_exported_ap(&index);
mp;
mp = get_next_exported_ap(&index)) {
if (mp->am_mnt == mf) {
/* return value from create_amfs_union_node is ignored by mapc_keyiter */
(void) mapc_keyiter((mnt_map *) mp->am_mnt->mf_private,
create_amfs_union_node,
mp);
break;
}
}
}
void
amfs_generic_mounted(mntfs *mf)
{
amfs_mkcacheref(mf);
}
/*
* 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;
}
