/*
* Mount the root...
*/
static int
amfs_root_mount(am_node *mp, mntfs *mf)
{
mf->mf_mount = strealloc(mf->mf_mount, pid_fsname);
mf->mf_private = (voidp) mapc_find(mf->mf_info, "", NULL);
mf->mf_prfree = mapc_free;
return 0;
}
/*
* Normalize a host name
*/
void
host_normalize(char **chp)
{
/*
* Normalize hosts is used to resolve host name aliases
* and replace them with the standard-form name.
* Invoked with "-n" command line option.
*/
if (gopt.flags & CFM_NORMALIZE_HOSTNAMES) {
struct hostent *hp;
clock_valid = 0;
hp = gethostbyname(*chp);
if (hp && hp->h_addrtype == AF_INET) {
dlog("Hostname %s normalized to %s", *chp, hp->h_name);
*chp = strealloc(*chp, (char *) hp->h_name);
}
}
domain_strip(*chp, hostd);
}
static char *
amfs_parse_defaults(am_node *mp, mntfs *mf, char *def_opts)
{
char *dflts;
char *dfl;
char **rvec = NULL;
struct mnt_map *mm = (mnt_map *) mf->mf_private;
dlog("determining /defaults entry value");
/*
* Find out if amd.conf overrode any map-specific /defaults.
*/
if (mm->cfm && mm->cfm->cfm_defaults) {
dlog("map %s map_defaults override: %s", mf->mf_mount, mm->cfm->cfm_defaults);
dflts = xstrdup(mm->cfm->cfm_defaults);
} else if (mapc_search(mm, "/defaults", &dflts) == 0) {
dlog("/defaults gave %s", dflts);
} else {
return def_opts; /* if nothing found */
}
/* trim leading '-' in case thee's one */
if (*dflts == '-')
dfl = dflts + 1;
else
dfl = dflts;
/*
* Chop the defaults up
*/
rvec = strsplit(dfl, ' ', '\"');
if (gopt.flags & CFM_SELECTORS_IN_DEFAULTS) {
/*
* Pick whichever first entry matched the list of selectors.
* Strip the selectors from the string, and assign to dfl the
* rest of the string.
*/
if (rvec) {
am_opts ap;
am_ops *pt;
char **sp = rvec;
while (*sp) { /* loop until you find something, if any */
memset((char *) &ap, 0, sizeof(am_opts));
/*
* This next routine cause many spurious "expansion of ... is"
* messages, which are ignored, b/c all we need out of this
* routine is to match selectors. These spurious messages may
* be wrong, esp. if they try to expand ${key} b/c it will
* get expanded to "/defaults"
*/
pt = ops_match(&ap, *sp, "", mp->am_path, "/defaults",
mp->am_parent->am_al->al_mnt->mf_info);
free_opts(&ap); /* don't leak */
if (pt == &amfs_error_ops) {
plog(XLOG_MAP, "did not match defaults for \"%s\"", *sp);
} else {
dfl = strip_selectors(*sp, "/defaults");
plog(XLOG_MAP, "matched default selectors \"%s\"", dfl);
break;
}
++sp;
}
}
} else { /* not selectors_in_defaults */
/*
* Extract first value
*/
dfl = rvec[0];
}
/*
* If there were any values at all...
*/
if (dfl) {
/*
* Log error if there were other values
*/
if (!(gopt.flags & CFM_SELECTORS_IN_DEFAULTS) && rvec[1]) {
dlog("/defaults chopped into %s", dfl);
plog(XLOG_USER, "More than a single value for /defaults in %s", mf->mf_info);
}
/*
* Prepend to existing defaults if they exist,
* otherwise just use these defaults.
*/
if (*def_opts && *dfl) {
size_t l = strlen(def_opts) + strlen(dfl) + 2;
char *nopts = (char *) xmalloc(l);
xsnprintf(nopts, l, "%s;%s", dfl, def_opts);
XFREE(def_opts);
def_opts = nopts;
} else if (*dfl) {
def_opts = strealloc(def_opts, dfl);
}
}
XFREE(dflts);
/* don't need info vector any more */
if (rvec)
XFREE(rvec);
return def_opts;
}
/*
* 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;
}
