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Differential D25441 Diff 73663 head/sys/geom/bde/g_bde.c

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head/sys/geom/bde/g_bde.c

Show First 20 Lines • Show All 82 Lines • ▼ Show 20 Linesg_bde_orphan(struct g_consumer *cp)
g_trace(G_T_TOPOLOGY, "g_bde_orphan(%p/%s)", cp, cp->provider->name); g_trace(G_T_TOPOLOGY, "g_bde_orphan(%p/%s)", cp, cp->provider->name);
g_topology_assert(); g_topology_assert();
gp = cp->geom; gp = cp->geom;
sc = gp->softc; sc = gp->softc;
gp->flags |= G_GEOM_WITHER; gp->flags |= G_GEOM_WITHER;
LIST_FOREACH(pp, &gp->provider, provider) LIST_FOREACH(pp, &gp->provider, provider)
g_wither_provider(pp, ENXIO); g_wither_provider(pp, ENXIO);
bzero(sc, sizeof(struct g_bde_softc)); /* destroy evidence */ explicit_bzero(sc, sizeof(struct g_bde_softc)); /* destroy evidence */
return; return;
} }
static int static int
g_bde_access(struct g_provider *pp, int dr, int dw, int de) g_bde_access(struct g_provider *pp, int dr, int dw, int de)
{ {
struct g_geom *gp; struct g_geom *gp;
struct g_consumer *cp; struct g_consumer *cp;
▲ Show 20 Lines • Show All 58 Lines • ▼ Show 20 Lines do {
mediasize = cp->provider->mediasize; mediasize = cp->provider->mediasize;
sc = g_malloc(sizeof(struct g_bde_softc), M_WAITOK | M_ZERO); sc = g_malloc(sizeof(struct g_bde_softc), M_WAITOK | M_ZERO);
gp->softc = sc; gp->softc = sc;
sc->geom = gp; sc->geom = gp;
sc->consumer = cp; sc->consumer = cp;
error = g_bde_decrypt_lock(sc, pass, key, error = g_bde_decrypt_lock(sc, pass, key,
mediasize, sectorsize, NULL); mediasize, sectorsize, NULL);
bzero(sc->sha2, sizeof sc->sha2); explicit_bzero(sc->sha2, sizeof sc->sha2);
if (error) if (error)
break; break;
kp = &sc->key; kp = &sc->key;
/* Initialize helper-fields */ /* Initialize helper-fields */
kp->keys_per_sector = kp->sectorsize / G_BDE_SKEYLEN; kp->keys_per_sector = kp->sectorsize / G_BDE_SKEYLEN;
kp->zone_cont = kp->keys_per_sector * kp->sectorsize; kp->zone_cont = kp->keys_per_sector * kp->sectorsize;
kp->zone_width = kp->zone_cont + kp->sectorsize; kp->zone_width = kp->zone_cont + kp->sectorsize;
Show All 15 Lines do {
pp->stripesize = kp->zone_cont; pp->stripesize = kp->zone_cont;
pp->stripeoffset = 0; pp->stripeoffset = 0;
pp->mediasize = sc->mediasize; pp->mediasize = sc->mediasize;
pp->sectorsize = sc->sectorsize; pp->sectorsize = sc->sectorsize;
g_error_provider(pp, 0); g_error_provider(pp, 0);
break; break;
} while (0); } while (0);
if (pass != NULL) if (pass != NULL)
bzero(pass, SHA512_DIGEST_LENGTH); explicit_bzero(pass, SHA512_DIGEST_LENGTH);
if (key != NULL) if (key != NULL)
bzero(key, 16); explicit_bzero(key, 16);
if (error == 0) if (error == 0)
return; return;
g_access(cp, -1, -1, -1); g_access(cp, -1, -1, -1);
g_detach(cp); g_detach(cp);
g_destroy_consumer(cp); g_destroy_consumer(cp);
if (gp->softc != NULL) if (gp->softc != NULL)
g_free(gp->softc); g_free(gp->softc);
g_destroy_geom(gp); g_destroy_geom(gp);
▲ Show 20 Lines • Show All 41 Lines • ▼ Show 20 Linesg_bde_destroy_geom(struct gctl_req *req, struct g_class *mp, struct g_geom *gp)
sc->dead = 1; sc->dead = 1;
wakeup(sc); wakeup(sc);
g_access(cp, -1, -1, -1); g_access(cp, -1, -1, -1);
g_detach(cp); g_detach(cp);
g_destroy_consumer(cp); g_destroy_consumer(cp);
while (sc->dead != 2 && !LIST_EMPTY(&pp->consumers)) while (sc->dead != 2 && !LIST_EMPTY(&pp->consumers))
tsleep(sc, PRIBIO, "g_bdedie", hz); tsleep(sc, PRIBIO, "g_bdedie", hz);
mtx_destroy(&sc->worklist_mutex); mtx_destroy(&sc->worklist_mutex);
bzero(&sc->key, sizeof sc->key); explicit_bzero(&sc->key, sizeof sc->key);
g_free(sc); g_free(sc);
g_wither_geom(gp, ENXIO); g_wither_geom(gp, ENXIO);
return (0); return (0);
} }
static void static void
g_bde_ctlreq(struct gctl_req *req, struct g_class *mp, char const *verb) g_bde_ctlreq(struct gctl_req *req, struct g_class *mp, char const *verb)
{ {
Show All 29 Lines