+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * fs/partitions/fit.c
- * Copyright (C) 2021 Daniel Golle
- *
- * headers extracted from U-Boot mkimage sources
- * (C) Copyright 2008 Semihalf
- * (C) Copyright 2000-2005
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * based on existing partition parsers
- * Copyright (C) 1991-1998 Linus Torvalds
- * Re-organised Feb 1998 Russell King
- */
-
-#define pr_fmt(fmt) fmt
-
-#include <linux/types.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/of_fdt.h>
-#include <linux/libfdt.h>
-#include <linux/version.h>
-
-#include "check.h"
-
-#define FIT_IMAGES_PATH "/images"
-#define FIT_CONFS_PATH "/configurations"
-
-/* hash/signature/key node */
-#define FIT_HASH_NODENAME "hash"
-#define FIT_ALGO_PROP "algo"
-#define FIT_VALUE_PROP "value"
-#define FIT_IGNORE_PROP "uboot-ignore"
-#define FIT_SIG_NODENAME "signature"
-#define FIT_KEY_REQUIRED "required"
-#define FIT_KEY_HINT "key-name-hint"
-
-/* cipher node */
-#define FIT_CIPHER_NODENAME "cipher"
-#define FIT_ALGO_PROP "algo"
-
-/* image node */
-#define FIT_DATA_PROP "data"
-#define FIT_DATA_POSITION_PROP "data-position"
-#define FIT_DATA_OFFSET_PROP "data-offset"
-#define FIT_DATA_SIZE_PROP "data-size"
-#define FIT_TIMESTAMP_PROP "timestamp"
-#define FIT_DESC_PROP "description"
-#define FIT_ARCH_PROP "arch"
-#define FIT_TYPE_PROP "type"
-#define FIT_OS_PROP "os"
-#define FIT_COMP_PROP "compression"
-#define FIT_ENTRY_PROP "entry"
-#define FIT_LOAD_PROP "load"
-
-/* configuration node */
-#define FIT_KERNEL_PROP "kernel"
-#define FIT_FILESYSTEM_PROP "filesystem"
-#define FIT_RAMDISK_PROP "ramdisk"
-#define FIT_FDT_PROP "fdt"
-#define FIT_LOADABLE_PROP "loadables"
-#define FIT_DEFAULT_PROP "default"
-#define FIT_SETUP_PROP "setup"
-#define FIT_FPGA_PROP "fpga"
-#define FIT_FIRMWARE_PROP "firmware"
-#define FIT_STANDALONE_PROP "standalone"
-
-#define FIT_MAX_HASH_LEN HASH_MAX_DIGEST_SIZE
-
-#define MIN_FREE_SECT 16
-#define REMAIN_VOLNAME "rootfs_data"
-
-int parse_fit_partitions(struct parsed_partitions *state, u64 fit_start_sector, u64 sectors, int *slot, int add_remain)
-{
- struct block_device *bdev = state->disk->part0;
- struct address_space *mapping = bdev->bd_inode->i_mapping;
- struct page *page;
- void *fit, *init_fit;
- struct partition_meta_info *info;
- char tmp[sizeof(info->volname)];
- u64 dsize, dsectors, imgmaxsect = 0;
- u32 size, image_pos, image_len;
- const u32 *image_offset_be, *image_len_be, *image_pos_be;
- int ret = 1, node, images, config;
- const char *image_name, *image_type, *image_description, *config_default,
- *config_description, *config_loadables, *bootconf_c;
- int image_name_len, image_type_len, image_description_len, config_default_len,
- config_description_len, config_loadables_len, bootconf_len;
- sector_t start_sect, nr_sects;
- size_t label_min;
- struct device_node *np = NULL;
- char *bootconf = NULL, *bootconf_term;
- const char *loadable;
- const char *select_rootfs = NULL;
- bool found;
- int loadables_rem_len, loadable_len;
-
- if (fit_start_sector % (1<<(PAGE_SHIFT - SECTOR_SHIFT)))
- return -ERANGE;
-
- page = read_mapping_page(mapping, fit_start_sector >> (PAGE_SHIFT - SECTOR_SHIFT), NULL);
- if (IS_ERR(page))
- return -EFAULT;
-
- if (PageError(page))
- return -EFAULT;
-
- init_fit = page_address(page);
-
- if (!init_fit) {
- put_page(page);
- return -EFAULT;
- }
-
- if (fdt_check_header(init_fit)) {
- put_page(page);
- return 0;
- }
-
- dsectors = get_capacity(bdev->bd_disk);
- if (sectors)
- dsectors = (dsectors>sectors)?sectors:dsectors;
-
- dsize = dsectors << SECTOR_SHIFT;
- size = fdt_totalsize(init_fit);
-
- /* silently skip non-external-data legacy FIT images */
- if (size > PAGE_SIZE) {
- put_page(page);
- return 0;
- }
-
- if (size >= dsize) {
- state->access_beyond_eod = 1;
- put_page(page);
- return -EFBIG;
- }
-
- fit = kmemdup(init_fit, size, GFP_KERNEL);
- put_page(page);
- if (!fit)
- return -ENOMEM;
-
- np = of_find_node_by_path("/chosen");
- if (np) {
- /* new fitblk driver should take over if /chosen/rootdisk is defined */
- if (of_get_property(np, "rootdisk", NULL))
- return 0;
-
- bootconf_c = of_get_property(np, "u-boot,bootconf", &bootconf_len);
- if (bootconf_c && bootconf_len)
- bootconf = kmemdup_nul(bootconf_c, bootconf_len, GFP_KERNEL);
- }
-
- if (bootconf) {
- bootconf_term = strchr(bootconf, '#');
- if (bootconf_term)
- *bootconf_term = '\0';
- }
-
- config = fdt_path_offset(fit, FIT_CONFS_PATH);
- if (config < 0) {
- printk(KERN_ERR "FIT: Cannot find %s node: %d\n", FIT_CONFS_PATH, config);
- ret = -ENOENT;
- goto ret_out;
- }
-
- config_default = fdt_getprop(fit, config, FIT_DEFAULT_PROP, &config_default_len);
-
- if (!config_default && !bootconf) {
- printk(KERN_ERR "FIT: Cannot find default configuration\n");
- ret = -ENOENT;
- goto ret_out;
- }
-
- node = fdt_subnode_offset(fit, config, bootconf?:config_default);
- if (node < 0) {
- printk(KERN_ERR "FIT: Cannot find %s node: %d\n", bootconf?:config_default, node);
- ret = -ENOENT;
- goto ret_out;
- }
-
- config_description = fdt_getprop(fit, node, FIT_DESC_PROP, &config_description_len);
- config_loadables = fdt_getprop(fit, node, FIT_LOADABLE_PROP, &config_loadables_len);
-
- printk(KERN_DEBUG "FIT: %s configuration: \"%s\"%s%s%s\n",
- bootconf?"Selected":"Default", bootconf?:config_default,
- config_description?" (":"", config_description?:"", config_description?")":"");
-
- if (!config_loadables || !config_loadables_len) {
- printk(KERN_ERR "FIT: No loadables configured in \"%s\"\n", bootconf?:config_default);
- ret = -ENOENT;
- goto ret_out;
- }
-
- images = fdt_path_offset(fit, FIT_IMAGES_PATH);
- if (images < 0) {
- printk(KERN_ERR "FIT: Cannot find %s node: %d\n", FIT_IMAGES_PATH, images);
- ret = -EINVAL;
- goto ret_out;
- }
-
- fdt_for_each_subnode(node, fit, images) {
- image_name = fdt_get_name(fit, node, &image_name_len);
- image_type = fdt_getprop(fit, node, FIT_TYPE_PROP, &image_type_len);
- image_offset_be = fdt_getprop(fit, node, FIT_DATA_OFFSET_PROP, NULL);
- image_pos_be = fdt_getprop(fit, node, FIT_DATA_POSITION_PROP, NULL);
- image_len_be = fdt_getprop(fit, node, FIT_DATA_SIZE_PROP, NULL);
- if (!image_name || !image_type || !image_len_be)
- continue;
-
- image_len = be32_to_cpu(*image_len_be);
- if (!image_len)
- continue;
-
- if (image_offset_be)
- image_pos = be32_to_cpu(*image_offset_be) + size;
- else if (image_pos_be)
- image_pos = be32_to_cpu(*image_pos_be);
- else
- continue;
-
- image_description = fdt_getprop(fit, node, FIT_DESC_PROP, &image_description_len);
-
- printk(KERN_DEBUG "FIT: %16s sub-image 0x%08x..0x%08x \"%s\" %s%s%s\n",
- image_type, image_pos, image_pos + image_len - 1, image_name,
- image_description?"(":"", image_description?:"", image_description?") ":"");
-
- if (strcmp(image_type, FIT_FILESYSTEM_PROP))
- continue;
-
- /* check if sub-image is part of configured loadables */
- found = false;
- loadable = config_loadables;
- loadables_rem_len = config_loadables_len;
- while (loadables_rem_len > 1) {
- loadable_len = strnlen(loadable, loadables_rem_len - 1) + 1;
- loadables_rem_len -= loadable_len;
- if (!strncmp(image_name, loadable, loadable_len)) {
- found = true;
- break;
- }
- loadable += loadable_len;
- }
- if (!found)
- continue;
-
- if (image_pos & ((1 << PAGE_SHIFT)-1)) {
- printk(KERN_ERR "FIT: image %s start not aligned to page boundaries, skipping\n", image_name);
- continue;
- }
-
- if (image_len & ((1 << PAGE_SHIFT)-1)) {
- printk(KERN_ERR "FIT: sub-image %s end not aligned to page boundaries, skipping\n", image_name);
- continue;
- }
-
- start_sect = image_pos >> SECTOR_SHIFT;
- nr_sects = image_len >> SECTOR_SHIFT;
- imgmaxsect = (imgmaxsect < (start_sect + nr_sects))?(start_sect + nr_sects):imgmaxsect;
-
- if (start_sect + nr_sects > dsectors) {
- state->access_beyond_eod = 1;
- continue;
- }
-
- put_partition(state, ++(*slot), fit_start_sector + start_sect, nr_sects);
- state->parts[*slot].flags = ADDPART_FLAG_READONLY;
- state->parts[*slot].has_info = true;
- info = &state->parts[*slot].info;
-
- label_min = min_t(int, sizeof(info->volname) - 1, image_name_len);
- strncpy(info->volname, image_name, label_min);
- info->volname[label_min] = '\0';
-
- snprintf(tmp, sizeof(tmp), "(%s)", info->volname);
- strlcat(state->pp_buf, tmp, PAGE_SIZE);
-
- /* Mark first loadable listed to be mounted as rootfs */
- if (!strcmp(image_name, config_loadables)) {
- select_rootfs = image_name;
- state->parts[*slot].flags |= ADDPART_FLAG_ROOTDEV;
- }
- }
-
- if (select_rootfs)
- printk(KERN_DEBUG "FIT: selecting configured loadable \"%s\" to be root filesystem\n", select_rootfs);
-
- if (add_remain && (imgmaxsect + MIN_FREE_SECT) < dsectors) {
- put_partition(state, ++(*slot), fit_start_sector + imgmaxsect, dsectors - imgmaxsect);
- state->parts[*slot].flags = 0;
- info = &state->parts[*slot].info;
- strcpy(info->volname, REMAIN_VOLNAME);
- snprintf(tmp, sizeof(tmp), "(%s)", REMAIN_VOLNAME);
- strlcat(state->pp_buf, tmp, PAGE_SIZE);
- }
-ret_out:
- kfree(bootconf);
- kfree(fit);
- return ret;
-}
-
-int fit_partition(struct parsed_partitions *state) {
- int slot = 0;
- return parse_fit_partitions(state, 0, 0, &slot, 0);
-}
+++ /dev/null
-From 69357074558daf6ff24c9f58714935e9e095a865 Mon Sep 17 00:00:00 2001
-From: OpenWrt community <openwrt-devel@lists.openwrt.org>
-Date: Wed, 13 Jul 2022 13:37:33 +0200
-Subject: [PATCH] kernel: add block fit partition parser
-
----
- block/blk.h | 2 ++
- block/partitions/Kconfig | 7 +++++++
- block/partitions/Makefile | 1 +
- block/partitions/check.h | 3 +++
- block/partitions/core.c | 17 +++++++++++++++++
- block/partitions/efi.c | 8 ++++++++
- block/partitions/efi.h | 3 +++
- block/partitions/msdos.c | 10 ++++++++++
- drivers/mtd/mtd_blkdevs.c | 2 ++
- drivers/mtd/ubi/block.c | 3 +++
- include/linux/msdos_partition.h | 1 +
- 11 files changed, 57 insertions(+)
-
---- a/block/blk.h
-+++ b/block/blk.h
-@@ -424,6 +424,8 @@ void blk_free_ext_minor(unsigned int min
- #define ADDPART_FLAG_NONE 0
- #define ADDPART_FLAG_RAID 1
- #define ADDPART_FLAG_WHOLEDISK 2
-+#define ADDPART_FLAG_READONLY 4
-+#define ADDPART_FLAG_ROOTDEV 8
- int bdev_add_partition(struct gendisk *disk, int partno, sector_t start,
- sector_t length);
- int bdev_del_partition(struct gendisk *disk, int partno);
---- a/block/partitions/Kconfig
-+++ b/block/partitions/Kconfig
-@@ -103,6 +103,13 @@ config ATARI_PARTITION
- Say Y here if you would like to use hard disks under Linux which
- were partitioned under the Atari OS.
-
-+config FIT_PARTITION
-+ bool "Flattened-Image-Tree (FIT) partition support" if PARTITION_ADVANCED
-+ default n
-+ help
-+ Say Y here if your system needs to mount the filesystem part of
-+ a Flattened-Image-Tree (FIT) image commonly used with Das U-Boot.
-+
- config IBM_PARTITION
- bool "IBM disk label and partition support"
- depends on PARTITION_ADVANCED && S390
---- a/block/partitions/Makefile
-+++ b/block/partitions/Makefile
-@@ -8,6 +8,7 @@ obj-$(CONFIG_ACORN_PARTITION) += acorn.o
- obj-$(CONFIG_AMIGA_PARTITION) += amiga.o
- obj-$(CONFIG_ATARI_PARTITION) += atari.o
- obj-$(CONFIG_AIX_PARTITION) += aix.o
-+obj-$(CONFIG_FIT_PARTITION) += fit.o
- obj-$(CONFIG_CMDLINE_PARTITION) += cmdline.o
- obj-$(CONFIG_MAC_PARTITION) += mac.o
- obj-$(CONFIG_LDM_PARTITION) += ldm.o
---- a/block/partitions/check.h
-+++ b/block/partitions/check.h
-@@ -57,6 +57,7 @@ int amiga_partition(struct parsed_partit
- int atari_partition(struct parsed_partitions *state);
- int cmdline_partition(struct parsed_partitions *state);
- int efi_partition(struct parsed_partitions *state);
-+int fit_partition(struct parsed_partitions *state);
- int ibm_partition(struct parsed_partitions *);
- int karma_partition(struct parsed_partitions *state);
- int ldm_partition(struct parsed_partitions *state);
-@@ -67,3 +68,5 @@ int sgi_partition(struct parsed_partitio
- int sun_partition(struct parsed_partitions *state);
- int sysv68_partition(struct parsed_partitions *state);
- int ultrix_partition(struct parsed_partitions *state);
-+
-+int parse_fit_partitions(struct parsed_partitions *state, u64 start_sector, u64 nr_sectors, int *slot, int add_remain);
---- a/block/partitions/core.c
-+++ b/block/partitions/core.c
-@@ -11,6 +11,9 @@
- #include <linux/vmalloc.h>
- #include <linux/raid/detect.h>
- #include <linux/property.h>
-+#ifdef CONFIG_FIT_PARTITION
-+#include <linux/root_dev.h>
-+#endif
-
- #include "check.h"
-
-@@ -48,6 +51,9 @@ static int (*const check_part[])(struct
- #ifdef CONFIG_EFI_PARTITION
- efi_partition, /* this must come before msdos */
- #endif
-+#ifdef CONFIG_FIT_PARTITION
-+ fit_partition,
-+#endif
- #ifdef CONFIG_SGI_PARTITION
- sgi_partition,
- #endif
-@@ -464,6 +470,11 @@ static struct block_device *add_partitio
- goto out_del;
- }
-
-+#ifdef CONFIG_FIT_PARTITION
-+ if (flags & ADDPART_FLAG_READONLY)
-+ bdev->bd_read_only = true;
-+#endif
-+
- /* everything is up and running, commence */
- err = xa_insert(&disk->part_tbl, partno, bdev, GFP_KERNEL);
- if (err)
-@@ -656,6 +667,11 @@ static bool blk_add_partition(struct gen
- (state->parts[p].flags & ADDPART_FLAG_RAID))
- md_autodetect_dev(part->bd_dev);
-
-+#ifdef CONFIG_FIT_PARTITION
-+ if ((state->parts[p].flags & ADDPART_FLAG_ROOTDEV) && ROOT_DEV == 0)
-+ ROOT_DEV = part->bd_dev;
-+#endif
-+
- return true;
- }
-
---- a/block/partitions/efi.c
-+++ b/block/partitions/efi.c
-@@ -716,6 +716,9 @@ int efi_partition(struct parsed_partitio
- gpt_entry *ptes = NULL;
- u32 i;
- unsigned ssz = queue_logical_block_size(state->disk->queue) / 512;
-+#ifdef CONFIG_FIT_PARTITION
-+ u32 extra_slot = 64;
-+#endif
-
- if (!find_valid_gpt(state, &gpt, &ptes) || !gpt || !ptes) {
- kfree(gpt);
-@@ -749,6 +752,11 @@ int efi_partition(struct parsed_partitio
- ARRAY_SIZE(ptes[i].partition_name));
- utf16_le_to_7bit(ptes[i].partition_name, label_max, info->volname);
- state->parts[i + 1].has_info = true;
-+#ifdef CONFIG_FIT_PARTITION
-+ /* If this is a U-Boot FIT volume it may have subpartitions */
-+ if (!efi_guidcmp(ptes[i].partition_type_guid, PARTITION_LINUX_FIT_GUID))
-+ (void) parse_fit_partitions(state, start * ssz, size * ssz, &extra_slot, 1);
-+#endif
- }
- kfree(ptes);
- kfree(gpt);
---- a/block/partitions/efi.h
-+++ b/block/partitions/efi.h
-@@ -51,6 +51,9 @@
- #define PARTITION_LINUX_LVM_GUID \
- EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \
- 0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28)
-+#define PARTITION_LINUX_FIT_GUID \
-+ EFI_GUID( 0xcae9be83, 0xb15f, 0x49cc, \
-+ 0x86, 0x3f, 0x08, 0x1b, 0x74, 0x4a, 0x2d, 0x93)
-
- typedef struct _gpt_header {
- __le64 signature;
---- a/block/partitions/msdos.c
-+++ b/block/partitions/msdos.c
-@@ -564,6 +564,15 @@ static void parse_minix(struct parsed_pa
- #endif /* CONFIG_MINIX_SUBPARTITION */
- }
-
-+static void parse_fit_mbr(struct parsed_partitions *state,
-+ sector_t offset, sector_t size, int origin)
-+{
-+#ifdef CONFIG_FIT_PARTITION
-+ u32 extra_slot = 64;
-+ (void) parse_fit_partitions(state, offset, size, &extra_slot, 1);
-+#endif /* CONFIG_FIT_PARTITION */
-+}
-+
- static struct {
- unsigned char id;
- void (*parse)(struct parsed_partitions *, sector_t, sector_t, int);
-@@ -575,6 +584,7 @@ static struct {
- {UNIXWARE_PARTITION, parse_unixware},
- {SOLARIS_X86_PARTITION, parse_solaris_x86},
- {NEW_SOLARIS_X86_PARTITION, parse_solaris_x86},
-+ {FIT_PARTITION, parse_fit_mbr},
- {0, NULL},
- };
-
---- a/drivers/mtd/mtd_blkdevs.c
-+++ b/drivers/mtd/mtd_blkdevs.c
-@@ -359,7 +359,9 @@ int add_mtd_blktrans_dev(struct mtd_blkt
- } else {
- snprintf(gd->disk_name, sizeof(gd->disk_name),
- "%s%d", tr->name, new->devnum);
-- gd->flags |= GENHD_FL_NO_PART;
-+
-+ if (!IS_ENABLED(CONFIG_FIT_PARTITION) || mtd_type_is_nand(new->mtd))
-+ gd->flags |= GENHD_FL_NO_PART;
- }
-
- set_capacity(gd, ((u64)new->size * tr->blksize) >> 9);
---- a/drivers/mtd/ubi/block.c
-+++ b/drivers/mtd/ubi/block.c
-@@ -410,7 +410,9 @@ int ubiblock_create(struct ubi_volume_in
- ret = -ENODEV;
- goto out_cleanup_disk;
- }
-- gd->flags |= GENHD_FL_NO_PART;
-+ if (!IS_ENABLED(CONFIG_FIT_PARTITION))
-+ gd->flags |= GENHD_FL_NO_PART;
-+
- gd->private_data = dev;
- sprintf(gd->disk_name, "ubiblock%d_%d", dev->ubi_num, dev->vol_id);
- set_capacity(gd, disk_capacity);
---- a/include/linux/msdos_partition.h
-+++ b/include/linux/msdos_partition.h
-@@ -31,6 +31,7 @@ enum msdos_sys_ind {
- LINUX_LVM_PARTITION = 0x8e,
- LINUX_RAID_PARTITION = 0xfd, /* autodetect RAID partition */
-
-+ FIT_PARTITION = 0x2e, /* U-Boot uImage.FIT */
- SOLARIS_X86_PARTITION = 0x82, /* also Linux swap partitions */
- NEW_SOLARIS_X86_PARTITION = 0xbf,
-
projects / openwrt / openwrt.git / commitdiff