1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
4  * Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
60     struct g_geom *gp);
61 static int g_label_destroy(struct g_geom *gp, boolean_t force);
118 	for (i = size - 1; i >= 0; i--) {  in g_label_rtrim()
130     struct g_geom *gp __unused)  in g_label_destroy_geom()
145 	    LIST_FIRST(&cp->geom->provider)->name);  in g_label_orphan()
154 	    LIST_FIRST(&cp->geom->provider)->name);  in g_label_spoiled()
163 	    LIST_FIRST(&cp->geom->provider)->name);  in g_label_resize()
165 	g_slice_config(cp->geom, 0, G_SLICE_CONFIG_FORCE, (off_t)0,  in g_label_resize()
166 	    cp->provider->mediasize, cp->provider->sectorsize, "notused");  in g_label_resize()
195 	for (i = len; i > 0; i--) {  in g_label_mangle_name()
196 		if (isspace(label[i - 1]))  in g_label_mangle_name()
197 			label[i - 1] = '\0';  in g_label_mangle_name()
225 	struct g_geom *gp;  in g_label_create()  local
234 		    pp->name);  in g_label_create()
235 		G_LABEL_DEBUG(1, "%s suspicious label is: %s", pp->name, label);  in g_label_create()
240 	gp = NULL;  in g_label_create()
247 	LIST_FOREACH(gp, &mp->geom, geom) {  in g_label_create()
248 		pp2 = LIST_FIRST(&gp->provider);  in g_label_create()
251 		if ((pp2->flags & G_PF_ORPHAN) != 0)  in g_label_create()
253 		if (strcmp(pp2->name, name) == 0) {  in g_label_create()
255 			    label, name, pp->name);  in g_label_create()
263 	gp = g_slice_new(mp, 1, pp, &cp, NULL, 0, NULL);  in g_label_create()
264 	if (gp == NULL) {  in g_label_create()
270 	gp->orphan = g_label_orphan;  in g_label_create()
271 	gp->spoiled = g_label_spoiled;  in g_label_create()
272 	gp->resize = g_label_resize;  in g_label_create()
273 	g_access(cp, -1, 0, 0);  in g_label_create()
274 	g_slice_config(gp, 0, G_SLICE_CONFIG_SET, (off_t)0, mediasize,  in g_label_create()
275 	    pp->sectorsize, "%s", name);  in g_label_create()
276 	G_LABEL_DEBUG(1, "Label for provider %s is %s.", pp->name, name);  in g_label_create()
277 	return (gp);  in g_label_create()
281 g_label_destroy(struct g_geom *gp, boolean_t force)  in g_label_destroy()  argument
286 	pp = LIST_FIRST(&gp->provider);  in g_label_destroy()
287 	if (pp != NULL && (pp->acr != 0 || pp->acw != 0 || pp->ace != 0)) {  in g_label_destroy()
290 			    "can't be definitely removed.", pp->name);  in g_label_destroy()
293 			    "Provider %s is still open (r%dw%de%d).", pp->name,  in g_label_destroy()
294 			    pp->acr, pp->acw, pp->ace);  in g_label_destroy()
298 		G_LABEL_DEBUG(1, "Label %s removed.", pp->name);  in g_label_destroy()
299 	g_slice_spoiled(LIST_FIRST(&gp->consumer));  in g_label_destroy()
310 	pp = cp->provider;  in g_label_read_metadata()
311 	if (pp->sectorsize < sizeof(*md))  in g_label_read_metadata()
313 	buf = g_read_data(cp, pp->mediasize - pp->sectorsize, pp->sectorsize,  in g_label_read_metadata()
355 	pp = cp->provider;  in g_label_generic_taste()
365 			pp->name);  in g_label_generic_taste()
372 	if (md.md_version >= 2 && md.md_provsize != pp->mediasize)  in g_label_generic_taste()
382 	struct g_geom *gp;  in g_label_taste()  local
386 	g_trace(G_T_TOPOLOGY, "%s(%s, %s)", __func__, mp->name, pp->name);  in g_label_taste()
389 	G_LABEL_DEBUG(2, "Tasting %s.", pp->name);  in g_label_taste()
392 	if (pp->acw > 0)  in g_label_taste()
396 	if (pp->sectorsize == 0)  in g_label_taste()
399 	if (strcmp(pp->geom->class->name, mp->name) == 0)  in g_label_taste()
402 	gp = g_new_geom(mp, "label:taste");  in g_label_taste()
403 	gp->start = g_label_start_taste;  in g_label_taste()
404 	gp->access = g_label_access_taste;  in g_label_taste()
405 	gp->orphan = g_label_orphan_taste;  in g_label_taste()
406 	cp = g_new_consumer(gp);  in g_label_taste()
407 	cp->flags |= G_CF_DIRECT_SEND | G_CF_DIRECT_RECEIVE;  in g_label_taste()
415 		if (g_labels[i]->ld_enabled == 0)  in g_label_taste()
418 		g_labels[i]->ld_taste(cp, label, sizeof(label));  in g_label_taste()
424 			mediasize = pp->mediasize;  in g_label_taste()
426 			mediasize = pp->mediasize - pp->sectorsize;  in g_label_taste()
429 		    g_labels[i]->ld_dirprefix, mediasize);  in g_label_taste()
431 	g_access(cp, -1, 0, 0);  in g_label_taste()
436 	g_destroy_geom(gp);  in g_label_taste()
472 	g_label_create(req, mp, pp, name, G_LABEL_DIRPREFIX, pp->mediasize);  in g_label_ctl_create()
483 		if (strncmp(name, g_labels[i]->ld_dirprefix,  in g_label_skip_dir()
484 		    strlen(g_labels[i]->ld_dirprefix)) == 0) {  in g_label_skip_dir()
485 			name += strlen(g_labels[i]->ld_dirprefix);  in g_label_skip_dir()
495 	struct g_geom *gp;  in g_label_find_geom()  local
500 	LIST_FOREACH(gp, &mp->geom, geom) {  in g_label_find_geom()
501 		pp = LIST_FIRST(&gp->provider);  in g_label_find_geom()
502 		pname = g_label_skip_dir(pp->name);  in g_label_find_geom()
504 			return (gp);  in g_label_find_geom()
513 	struct g_geom *gp;  in g_label_ctl_destroy()  local
541 		gp = g_label_find_geom(mp, name);  in g_label_ctl_destroy()
542 		if (gp == NULL) {  in g_label_ctl_destroy()
547 		error = g_label_destroy(gp, *force);  in g_label_ctl_destroy()
550 			    LIST_FIRST(&gp->provider)->name, error);  in g_label_ctl_destroy()