static void g_bde_create_geom(struct gctl_req *req, struct g_class *mp, struct g_provider *pp) { struct g_geom *gp; struct g_consumer *cp; struct g_bde_key *kp; int error, i; u_int sectorsize; off_t mediasize; struct g_bde_softc *sc; void *pass; void *key; g_trace(G_T_TOPOLOGY, "g_bde_create_geom(%s, %s)", mp->name, pp->name); g_topology_assert(); gp = NULL; gp = g_new_geomf(mp, "%s.bde", pp->name); cp = g_new_consumer(gp); g_attach(cp, pp); error = g_access(cp, 1, 1, 1); if (error) { g_detach(cp); g_destroy_consumer(cp); g_destroy_geom(gp); gctl_error(req, "could not access consumer"); return; } pass = NULL; key = NULL; do { pass = gctl_get_param(req, "pass", &i); if (pass == NULL || i != SHA512_DIGEST_LENGTH) { gctl_error(req, "No usable key presented"); break; } key = gctl_get_param(req, "key", &i); if (key != NULL && i != 16) { gctl_error(req, "Invalid key presented"); break; } sectorsize = cp->provider->sectorsize; mediasize = cp->provider->mediasize; sc = g_malloc(sizeof(struct g_bde_softc), M_WAITOK | M_ZERO); gp->softc = sc; sc->geom = gp; sc->consumer = cp; error = g_bde_decrypt_lock(sc, pass, key, mediasize, sectorsize, NULL); bzero(sc->sha2, sizeof sc->sha2); if (error) break; kp = &sc->key; /* Initialize helper-fields */ kp->keys_per_sector = kp->sectorsize / G_BDE_SKEYLEN; kp->zone_cont = kp->keys_per_sector * kp->sectorsize; kp->zone_width = kp->zone_cont + kp->sectorsize; kp->media_width = kp->sectorN - kp->sector0 - G_BDE_MAXKEYS * kp->sectorsize; /* Our external parameters */ sc->zone_cont = kp->zone_cont; sc->mediasize = g_bde_max_sector(kp); sc->sectorsize = kp->sectorsize; TAILQ_INIT(&sc->freelist); TAILQ_INIT(&sc->worklist); mtx_init(&sc->worklist_mutex, "g_bde_worklist", NULL, MTX_DEF); /* XXX: error check */ kproc_create(g_bde_worker, gp, &sc->thread, 0, 0, "g_bde %s", gp->name); pp = g_new_providerf(gp, gp->name); #if 0 /* * XXX: Disable this for now. Appearantly UFS no longer * XXX: issues BIO_DELETE requests correctly, with the obvious * XXX: outcome that userdata is trashed. */ pp->flags |= G_PF_CANDELETE; #endif pp->stripesize = kp->zone_cont; pp->stripeoffset = 0; pp->mediasize = sc->mediasize; pp->sectorsize = sc->sectorsize; g_error_provider(pp, 0); break; } while (0); if (pass != NULL) bzero(pass, SHA512_DIGEST_LENGTH); if (key != NULL) bzero(key, 16); if (error == 0) return; g_access(cp, -1, -1, -1); g_detach(cp); g_destroy_consumer(cp); if (gp->softc != NULL) g_free(gp->softc); g_destroy_geom(gp); return; }
static void g_bde_create_geom(struct gctl_req *req, struct g_class *mp, struct g_provider *pp) { struct g_geom *gp; struct g_consumer *cp; struct g_bde_key *kp; int error, i; u_int sectorsize; off_t mediasize; struct g_bde_softc *sc; void *pass; void *key; g_trace(G_T_TOPOLOGY, "g_bde_create_geom(%s, %s)", mp->name, pp->name); g_topology_assert(); gp = NULL; gp = g_new_geomf(mp, "%s.bde", pp->name); cp = g_new_consumer(gp); g_attach(cp, pp); error = g_access(cp, 1, 1, 1); if (error) { g_detach(cp); g_destroy_consumer(cp); g_destroy_geom(gp); gctl_error(req, "could not access consumer"); return; } pass = NULL; key = NULL; do { pass = gctl_get_param(req, "pass", &i); if (pass == NULL || i != SHA512_DIGEST_LENGTH) { gctl_error(req, "No usable key presented"); break; } key = gctl_get_param(req, "key", &i); if (key != NULL && i != 16) { gctl_error(req, "Invalid key presented"); break; } sectorsize = cp->provider->sectorsize; mediasize = cp->provider->mediasize; sc = g_malloc(sizeof(struct g_bde_softc), M_WAITOK | M_ZERO); gp->softc = sc; sc->geom = gp; sc->consumer = cp; error = g_bde_decrypt_lock(sc, pass, key, mediasize, sectorsize, NULL); bzero(sc->sha2, sizeof sc->sha2); if (error) break; kp = &sc->key; /* Initialize helper-fields */ kp->keys_per_sector = kp->sectorsize / G_BDE_SKEYLEN; kp->zone_cont = kp->keys_per_sector * kp->sectorsize; kp->zone_width = kp->zone_cont + kp->sectorsize; kp->media_width = kp->sectorN - kp->sector0 - G_BDE_MAXKEYS * kp->sectorsize; /* Our external parameters */ sc->zone_cont = kp->zone_cont; sc->mediasize = g_bde_max_sector(kp); sc->sectorsize = kp->sectorsize; TAILQ_INIT(&sc->freelist); TAILQ_INIT(&sc->worklist); mtx_init(&sc->worklist_mutex, "g_bde_worklist", NULL, MTX_DEF); /* XXX: error check */ kproc_create(g_bde_worker, gp, &sc->thread, 0, 0, "g_bde %s", gp->name); pp = g_new_providerf(gp, "%s", gp->name); pp->stripesize = kp->zone_cont; pp->stripeoffset = 0; pp->mediasize = sc->mediasize; pp->sectorsize = sc->sectorsize; g_error_provider(pp, 0); break; } while (0); if (pass != NULL) bzero(pass, SHA512_DIGEST_LENGTH); if (key != NULL) bzero(key, 16); if (error == 0) return; g_access(cp, -1, -1, -1); g_detach(cp); g_destroy_consumer(cp); if (gp->softc != NULL) g_free(gp->softc); g_destroy_geom(gp); switch (error) { case ENOENT: gctl_error(req, "Lock was destroyed"); break; case ESRCH: gctl_error(req, "Lock was nuked"); break; case EINVAL: gctl_error(req, "Could not open lock"); break; case ENOTDIR: gctl_error(req, "Lock not found"); break; default: gctl_error(req, "Could not open lock (%d)", error); break; } return; }