Index: sys/conf/files =================================================================== --- sys/conf/files +++ sys/conf/files @@ -3628,6 +3628,7 @@ geom/journal/g_journal_ufs.c optional geom_journal geom/label/g_label.c optional geom_label | geom_label_gpt geom/label/g_label_ext2fs.c optional geom_label +geom/label/g_label_flashmap.c optional geom_label geom/label/g_label_iso9660.c optional geom_label geom/label/g_label_msdosfs.c optional geom_label geom/label/g_label_ntfs.c optional geom_label Index: sys/geom/geom_flashmap.h =================================================================== --- sys/geom/geom_flashmap.h +++ sys/geom/geom_flashmap.h @@ -0,0 +1,39 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2019 Ian Lepore + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD: + */ + +#ifndef _GEOM_GEOM_FLASHMAP_H_ + +#define FLASHMAP_CLASS_NAME "Flashmap" + +struct g_flashmap { + const char *labels[FLASH_SLICES_MAX_NUM]; +}; + +#endif + Index: sys/geom/geom_flashmap.c =================================================================== --- sys/geom/geom_flashmap.c +++ sys/geom/geom_flashmap.c @@ -39,13 +39,12 @@ #include #include +#include #include #include #include -#define FLASHMAP_CLASS_NAME "Flashmap" - struct g_flashmap_slice { off_t sl_start; off_t sl_end; @@ -71,8 +70,8 @@ static int g_flashmap_load(device_t dev, struct g_provider *pp, flash_slicer_t slicer, struct g_flashmap_head *head); -static int g_flashmap_modify(struct g_geom *gp, const char *devname, - int secsize, struct g_flashmap_head *slices); +static int g_flashmap_modify(struct g_flashmap *gfp, struct g_geom *gp, + const char *devname, int secsize, struct g_flashmap_head *slices); static void g_flashmap_print(struct g_flashmap_slice *slice); MALLOC_DECLARE(M_FLASHMAP); @@ -88,8 +87,8 @@ } static int -g_flashmap_modify(struct g_geom *gp, const char *devname, int secsize, - struct g_flashmap_head *slices) +g_flashmap_modify(struct g_flashmap *gfp, struct g_geom *gp, + const char *devname, int secsize, struct g_flashmap_head *slices) { struct g_flashmap_slice *slice; int i, error; @@ -114,6 +113,8 @@ i = 0; STAILQ_FOREACH(slice, slices, sl_link) { + free(__DECONST(void *, gfp->labels[i]), M_FLASHMAP); + gfp->labels[i] = strdup(slice->sl_name, M_FLASHMAP); error = g_slice_config(gp, i++, G_SLICE_CONFIG_SET, slice->sl_start, slice->sl_end - slice->sl_start + 1, @@ -153,6 +154,7 @@ struct g_consumer *cp; struct g_flashmap_head head; struct g_flashmap_slice *slice, *slice_temp; + struct g_flashmap *gfp; flash_slicer_t slicer; device_t dev; int i, size; @@ -164,7 +166,8 @@ strcmp(pp->geom->class->name, G_DISK_CLASS_NAME) != 0) return (NULL); - gp = g_slice_new(mp, FLASH_SLICES_MAX_NUM, pp, &cp, NULL, 0, NULL); + gp = g_slice_new(mp, FLASH_SLICES_MAX_NUM, pp, &cp, (void**)&gfp, + sizeof(struct g_flashmap), NULL); if (gp == NULL) return (NULL); @@ -186,7 +189,7 @@ if (g_flashmap_load(dev, pp, slicer, &head) == 0) break; - g_flashmap_modify(gp, cp->provider->name, + g_flashmap_modify(gfp, gp, cp->provider->name, cp->provider->sectorsize, &head); } while (0); Index: sys/geom/label/g_label.h =================================================================== --- sys/geom/label/g_label.h +++ sys/geom/label/g_label.h @@ -88,6 +88,7 @@ extern struct g_label_desc g_label_gpt; extern struct g_label_desc g_label_gpt_uuid; extern struct g_label_desc g_label_disk_ident; +extern struct g_label_desc g_label_flashmap; extern void g_label_rtrim(char *label, size_t size); #endif /* _KERNEL */ Index: sys/geom/label/g_label.c =================================================================== --- sys/geom/label/g_label.c +++ sys/geom/label/g_label.c @@ -95,6 +95,7 @@ &g_label_reiserfs, &g_label_ntfs, &g_label_disk_ident, + &g_label_flashmap, #endif NULL }; Index: sys/geom/label/g_label_flashmap.c =================================================================== --- sys/geom/label/g_label_flashmap.c +++ sys/geom/label/g_label_flashmap.c @@ -0,0 +1,77 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 2019 Ian Lepore + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include +__FBSDID("$FreeBSD$"); + +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#define G_LABEL_FLASHMAP_SLICE_DIR "flash" + +static void +g_label_flashmap_taste(struct g_consumer *cp, char *label, size_t size) +{ + struct g_provider *pp; + struct g_slicer *gsp; + struct g_flashmap *gfp; + + g_topology_assert_not(); + + pp = cp->provider; + label[0] = '\0'; + + /* We taste only partitions handled by flashmap */ + if (strncmp(pp->geom->class->name, FLASHMAP_CLASS_NAME, + sizeof(FLASHMAP_CLASS_NAME)) != 0) + return; + + gsp = (struct g_slicer *)pp->geom->softc; + gfp = (struct g_flashmap *)gsp->softc; + + /* If it's handled by flashmap it should have a label, but be safe. */ + if (gfp->labels[pp->index] == NULL) + return; + + strlcpy(label, gfp->labels[pp->index], size); +} + +struct g_label_desc g_label_flashmap = { + .ld_taste = g_label_flashmap_taste, + .ld_dir = G_LABEL_FLASHMAP_SLICE_DIR, + .ld_enabled = 1 +}; + +G_LABEL_INIT(flashmap, g_label_flashmap, "Create device nodes for Flashmap labels");