/*
* Create a list of metadevices associated with trans. top_pp points to
* this list. The number of components in the list are also returned.
*/
int
create_trans_compslist(mdnamelist_t **lpp, mdnamelist_t **top_pp,
boolean_e verbose)
{
mdnamelist_t *p, *tailp, *toplp, *newlp;
int ntoptrans;
md_error_t e = mdnullerror;
md_trans_t *tp;
ntoptrans = 0;
p = *lpp;
tailp = toplp = NULL;
/*
* Scan the current list of trans devices. From that
* extract all the lower level metadevices and put them on
* toplp list.
*/
while (p) {
if (tp = meta_get_trans(sp, p->namep, &e)) {
/*
* Check the master and log devices to see if they
* are metadevices
*/
if (metaismeta(tp->masternamep)) {
if (verbose == True)
monitord_print(6, gettext(
"master metadevice\n"));
/* get a mdnamelist_t. */
newlp = create_nlp();
newlp->namep = tp->masternamep;
if (toplp == NULL) {
toplp = tailp = newlp;
} else {
tailp->next = newlp;
tailp = newlp;
}
ntoptrans++;
}
if (tp->lognamep && metaismeta(tp->lognamep)) {
if (verbose == True)
monitord_print(6, gettext(
"log metadevice\n"));
newlp = create_nlp();
newlp->namep = tp->lognamep;
if (toplp == NULL) {
toplp = tailp = newlp;
} else {
tailp->next = newlp;
tailp = newlp;
}
ntoptrans++;
}
p = p->next;
}
}
*top_pp = toplp;
return (ntoptrans);
}
/*
* check to see if a device is in its set
*/
int
meta_check_inset(
mdsetname_t *sp,
mdname_t *np,
md_error_t *ep
)
{
mdsetname_t *npsp;
int bypass_daemon = FALSE;
/* check devices set */
if (metaislocalset(sp))
bypass_daemon = TRUE;
if ((npsp = metagetset(np, bypass_daemon, ep)) == NULL) {
if ((! metaismeta(np)) &&
(metaislocalset(sp)) &&
(mdismddberror(ep, MDE_DB_NODB))) {
mdclrerror(ep);
npsp = sp;
} else {
return (-1);
}
}
/* check set */
if (metaissameset(sp, npsp))
return (0);
/* return appropriate error */
if (metaislocalset(sp))
return (mddeverror(ep, MDE_IN_SHARED_SET, np->dev, np->cname));
else
return (mddeverror(ep, MDE_NOT_IN_SET, np->dev, np->cname));
}
/*
* Return the current root filesystem block device name. This is only valid
* when root is either a slice, a stripe or a mirror.
*/
mdname_t *
meta_get_current_root_dev(
mdsetname_t *sp,
md_error_t *ep
)
{
md_stripe_t *stripep;
md_mirror_t *mirrorp;
md_row_t *rp;
md_comp_t *cp;
mdname_t *rootnp;
void *curroot;
char *miscname;
int smi;
if ((curroot = meta_get_current_root(ep)) == NULL)
return (NULL);
if ((rootnp = metaname(&sp, curroot, UNKNOWN, ep)) == NULL)
return (NULL);
if (metaismeta(rootnp)) {
if ((miscname = metagetmiscname(rootnp, ep)) == NULL)
return (NULL);
if ((strcmp(miscname, MD_MIRROR) == 0) &&
((mirrorp = meta_get_mirror(sp, rootnp, ep)) != NULL)) {
for (smi = 0; smi < NMIRROR; smi++) {
md_submirror_t *mdsp =
&mirrorp->submirrors[smi];
rootnp = mdsp->submirnamep;
/* skip unused submirrors */
if (rootnp == NULL) {
assert(mdsp->state == SMS_UNUSED);
continue;
}
if ((miscname = metagetmiscname(rootnp, ep))
== NULL) {
(void) mdmderror(ep, MDE_UNKNOWN_TYPE,
meta_getminor(rootnp->dev),
rootnp->cname);
return (NULL);
}
break;
}
}
if ((strcmp(miscname, MD_STRIPE) == 0) &&
((stripep = meta_get_stripe(sp, rootnp, ep)) != NULL)) {
rp = &stripep->rows.rows_val[0];
cp = &rp->comps.comps_val[0];
if (metachkcomp(cp->compnamep, ep) == 0)
return (cp->compnamep);
}
/* Root is not a single stripe metadevice */
(void) mddeverror(ep, MDE_INV_ROOT, rootnp->dev, rootnp->cname);
return (NULL);
} else return (rootnp);
}
/*
* grow the parent of a device
*/
int
meta_concat_parent(
mdsetname_t *sp,
mdname_t *childnp,
md_error_t *ep
)
{
md_common_t *mdp;
mdname_t *parentnp;
md_unit_t *mup;
/* should have a set */
assert(sp != NULL);
assert(sp->setno == MD_MIN2SET(meta_getminor(childnp->dev)));
/* get parent */
if ((mdp = meta_get_unit(sp, childnp, ep)) == NULL)
return (-1);
if (! MD_HAS_PARENT(mdp->parent))
return (0);
if (mdp->parent == MD_MULTI_PARENT)
return (0);
/* single parent */
if ((parentnp = metamnumname(&sp, mdp->parent, 0, ep)) == NULL)
return (-1);
/* don't grow non-metadevices or soft partitions */
if (! metaismeta(parentnp) || meta_sp_issp(sp, parentnp, ep) == 0)
return (0);
if ((mup = meta_get_mdunit(sp, childnp, ep)) == NULL)
return (-1);
/* grow parent */
if (meta_concat_generic(sp, parentnp, mup->c.un_revision, ep) != 0)
return (-1);
/* recursively check for parents of parents */
return (meta_concat_parent(sp, parentnp, ep));
}
