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-rw-r--r--ubi-utils/src/libubigen.c665
1 files changed, 254 insertions, 411 deletions
diff --git a/ubi-utils/src/libubigen.c b/ubi-utils/src/libubigen.c
index 1793009..91bb274 100644
--- a/ubi-utils/src/libubigen.c
+++ b/ubi-utils/src/libubigen.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) International Business Machines Corp., 2006
+ * Copyright (C) 2008 Nokia Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -14,474 +15,316 @@
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * Generating UBI images.
*
- * Author: Oliver Lohmann
- *
- * Add UBI headers to binary data.
+ * Authors: Oliver Lohmann
+ * Artem Bityutskiy
*/
#include <stdlib.h>
#include <stdint.h>
-#include <stdio.h>
-#include <errno.h>
+#include <unistd.h>
#include <string.h>
+
#include <mtd/ubi-media.h>
#include <mtd_swab.h>
-
-#include "config.h"
-#include "ubigen.h"
+#include <libubigen.h>
#include "crc32.h"
-
-#define UBI_NAME_SIZE 256
-#define DEFAULT_VID_OFFSET ((DEFAULT_PAGESIZE) - (UBI_VID_HDR_SIZE))
-#define MIN(a,b) ((a) < (b) ? (a) : (b))
-
-static uint32_t crc32_table[256];
-
-struct ubi_info {
- struct ubi_vid_hdr* v; /* Volume ID header */
- struct ubi_ec_hdr* ec; /* Erase count header */
-
- FILE* fp_in; /* Input Stream */
- FILE* fp_out; /* Output stream */
-
- size_t eb_size; /* Physical EB size in bytes */
- size_t leb_size; /* Size of a logical EB in a physical EB */
- size_t leb_total; /* Total input size in logical EB */
- size_t alignment; /* Block alignment */
- size_t data_pad; /* Size of padding in each physical EB */
-
- size_t bytes_total; /* Total input size in bytes */
- size_t bytes_read; /* Nymber of read bytes (total) */
-
- uint32_t blks_written; /* Number of written logical EB */
-
- uint8_t* buf; /* Allocated buffer */
- uint8_t* ptr_ec_hdr; /* Pointer to EC hdr in buf */
- uint8_t* ptr_vid_hdr; /* Pointer to VID hdr in buf */
- uint8_t* ptr_data; /* Pointer to data region in buf */
-};
-
-
-static uint32_t
-byte_to_blk(uint64_t byte, uint32_t eb_size)
-{
- return (byte % eb_size) == 0
- ? (byte / eb_size)
- : (byte / eb_size) + 1;
-}
-
-static int
-validate_ubi_info(ubi_info_t u)
-{
- if ((u->v->vol_type != UBI_VID_DYNAMIC) &&
- (u->v->vol_type != UBI_VID_STATIC)) {
- return EUBIGEN_INVALID_TYPE;
- }
-
- if (be32_to_cpu(u->ec->vid_hdr_offset) < UBI_VID_HDR_SIZE) {
- return EUBIGEN_INVALID_HDR_OFFSET;
- }
-
- return 0;
-}
-
-static int
-skip_blks(ubi_info_t u, uint32_t blks)
-{
- uint32_t i;
- size_t read = 0, to_read = 0;
-
- /* Step to a maximum of leb_total - 1 to keep the
- restrictions. */
- for (i = 0; i < MIN(blks, u->leb_total-1); i++) {
- /* Read in data */
- to_read = MIN(u->leb_size,
- (u->bytes_total - u->bytes_read));
- read = fread(u->ptr_data, 1, to_read, u->fp_in);
- if (read != to_read) {
- return -EIO;
- }
- u->bytes_read += read;
- u->blks_written++;
- }
-
- return 0;
-}
-
-static void
-clear_buf(ubi_info_t u)
-{
- memset(u->buf, 0xff, u->eb_size);
-}
-
-static void
-write_ec_hdr(ubi_info_t u)
-{
- memcpy(u->ptr_ec_hdr, u->ec, UBI_EC_HDR_SIZE);
-}
-
-static int
-fill_data_buffer_from_file(ubi_info_t u, size_t* read)
-{
- size_t to_read = 0;
-
- if (u-> fp_in == NULL)
- return -EIO;
-
- to_read = MIN(u->leb_size, (u->bytes_total - u->bytes_read));
- *read = fread(u->ptr_data, 1, to_read, u->fp_in);
- if (*read != to_read) {
- return -EIO;
- }
- return 0;
-}
-
-static void
-add_static_info(ubi_info_t u, size_t data_size, ubigen_action_t action)
-{
- uint32_t crc = clc_crc32(crc32_table, UBI_CRC32_INIT,
- u->ptr_data, data_size);
-
- u->v->data_size = cpu_to_be32(data_size);
- u->v->data_crc = cpu_to_be32(crc);
-
- if (action & BROKEN_DATA_CRC) {
- u->v->data_crc =
- cpu_to_be32(be32_to_cpu(u->v->data_crc) + 1);
- }
- if (action & BROKEN_DATA_SIZE) {
- u->v->data_size =
- cpu_to_be32(be32_to_cpu(u->v->data_size) + 1);
- }
-}
-
-static void
-write_vid_hdr(ubi_info_t u, ubigen_action_t action)
+#include "common.h"
+
+#define PROGRAM_NAME "libubigen"
+
+/**
+ * ubigen_info_init - initialize libubigen.
+ * @ui: libubigen information
+ * @peb_size: flash physical eraseblock size
+ * @min_io_size: flash minimum input/output unit size
+ * @subpage_size: flash sub-page, if present (has to be equivalent to
+ * @min_io_size if does not exist)
+ * @vid_hdr_offs: offset of the VID header
+ * @ubi_ver: UBI version
+ */
+void ubigen_info_init(struct ubigen_info *ui, int peb_size, int min_io_size,
+ int subpage_size, int vid_hdr_offs, int ubi_ver)
{
- uint32_t crc = clc_crc32(crc32_table, UBI_CRC32_INIT,
- u->v, UBI_VID_HDR_SIZE_CRC);
- /* Write VID header */
- u->v->hdr_crc = cpu_to_be32(crc);
- if (action & BROKEN_HDR_CRC) {
- u->v->hdr_crc = cpu_to_be32(be32_to_cpu(u->v->hdr_crc) + 1);
+ if (!vid_hdr_offs) {
+ vid_hdr_offs = UBI_EC_HDR_SIZE + subpage_size - 1;
+ vid_hdr_offs /= subpage_size;
+ vid_hdr_offs *= subpage_size;
}
- memcpy(u->ptr_vid_hdr, u->v, UBI_VID_HDR_SIZE);
-}
-static int
-write_to_output_stream(ubi_info_t u)
-{
- size_t written;
-
- written = fwrite(u->buf, 1, u->eb_size, u->fp_out);
- if (written != u->eb_size) {
- return -EIO;
- }
- return 0;
+ ui->peb_size = peb_size;
+ ui->min_io_size = min_io_size;
+ ui->vid_hdr_offs = vid_hdr_offs;
+ ui->data_offs = vid_hdr_offs + UBI_VID_HDR_SIZE + min_io_size - 1;
+ ui->data_offs /= min_io_size;
+ ui->data_offs *= min_io_size;
+ ui->leb_size = peb_size - ui->data_offs;
+ ui->ubi_ver = ubi_ver;
+
+ ui->max_volumes = ui->leb_size / UBI_VTBL_RECORD_SIZE;
+ if (ui->max_volumes > UBI_MAX_VOLUMES)
+ ui->max_volumes = UBI_MAX_VOLUMES;
+ ui->vtbl_size = ui->max_volumes * UBI_VTBL_RECORD_SIZE;
}
-int
-ubigen_write_leb(ubi_info_t u, ubigen_action_t action)
+/**
+ * ubigen_create_empty_vtbl - creates empty volume table.
+ *
+ * This function creates an empty volume table and returns a pointer to it in
+ * case of success and %NULL in case of failure. The returned object has to be
+ * freed with 'free()' call.
+ */
+struct ubi_vtbl_record *ubigen_create_empty_vtbl(const struct ubigen_info *ui)
{
- int rc = 0;
- size_t read = 0;
-
- clear_buf(u);
- write_ec_hdr(u);
+ struct ubi_vtbl_record *vtbl;
+ int i;
- rc = fill_data_buffer_from_file(u, &read);
- if (rc != 0)
- return rc;
-
- if (u->v->vol_type == UBI_VID_STATIC) {
- add_static_info(u, read, action);
+ vtbl = calloc(1, ui->vtbl_size);
+ if (!vtbl) {
+ sys_errmsg("cannot allocate %d bytes of memory", ui->vtbl_size);
+ return NULL;
}
- u->v->lnum = cpu_to_be32(u->blks_written);
-
- if (action & MARK_AS_UPDATE) {
- u->v->copy_flag = (u->v->copy_flag)++;
+ for (i = 0; i < ui->max_volumes; i++) {
+ uint32_t crc = crc32(UBI_CRC32_INIT, &vtbl[i],
+ UBI_VTBL_RECORD_SIZE_CRC);
+ vtbl[i].crc = cpu_to_be32(crc);
}
- write_vid_hdr(u, action);
- rc = write_to_output_stream(u);
- if (rc != 0)
- return rc;
-
- /* Update current handle */
- u->bytes_read += read;
- u->blks_written++;
- return 0;
+ return vtbl;
}
-int
-ubigen_write_complete(ubi_info_t u)
+/**
+ * ubigen_add_volume - add a volume to the volume table.
+ * @ui: libubigen information
+ * @vi: volume information
+ * @vtbl: volume table to add to
+ *
+ * This function adds volume described by input parameters to the volume table
+ * @vtbl.
+ */
+int ubigen_add_volume(const struct ubigen_info *ui,
+ const struct ubigen_vol_info *vi,
+ struct ubi_vtbl_record *vtbl)
{
- size_t i;
- int rc = 0;
-
- for (i = 0; i < u->leb_total; i++) {
- rc = ubigen_write_leb(u, NO_ERROR);
- if (rc != 0)
- return rc;
- }
-
+ struct ubi_vtbl_record *vtbl_rec = &vtbl[vi->id];
+ uint32_t tmp;
+
+ if (vi->id >= ui->max_volumes)
+ return errmsg("too high volume id %d, max. volumes is %d",
+ vi->id, ui->max_volumes);
+
+ if (vi->alignment >= ui->leb_size)
+ return errmsg("too large alignment %d, max is %d (LEB size)",
+ vi->alignment, ui->leb_size);
+
+ memset(vtbl_rec, '\0', sizeof(struct ubi_vtbl_record));
+ tmp = (vi->bytes + ui->leb_size - 1) / ui->leb_size;
+ vtbl_rec->reserved_pebs = cpu_to_be32(tmp);
+ vtbl_rec->alignment = cpu_to_be32(vi->alignment);
+ vtbl_rec->vol_type = vi->type;
+ tmp = ui->leb_size % vi->alignment;
+ vtbl_rec->data_pad = cpu_to_be32(tmp);
+ vtbl_rec->flags = vi->flags;
+
+ memcpy(vtbl_rec->name, vi->name, vi->name_len);
+ vtbl_rec->name[vi->name_len] = '\0';
+ vtbl_rec->name_len = cpu_to_be16(vi->name_len);
+
+ tmp = crc32(UBI_CRC32_INIT, vtbl_rec, UBI_VTBL_RECORD_SIZE_CRC);
+ vtbl_rec->crc = cpu_to_be32(tmp);
return 0;
}
-int
-ubigen_write_broken_update(ubi_info_t u, uint32_t blk)
+/**
+ * ubigen_init_ec_hdr - initialize EC header.
+ * @ui: libubigen information
+ * @hdr: the EC header to initialize
+ * @ec: erase counter value
+ */
+void ubigen_init_ec_hdr(const struct ubigen_info *ui,
+ struct ubi_ec_hdr *hdr, long long ec)
{
- int rc = 0;
+ uint32_t crc;
- rc = skip_blks(u, blk);
- if (rc != 0)
- return rc;
+ memset(hdr, '\0', sizeof(struct ubi_ec_hdr));
- rc = ubigen_write_leb(u, MARK_AS_UPDATE | BROKEN_DATA_CRC);
- if (rc != 0)
- return rc;
+ hdr->magic = cpu_to_be32(UBI_EC_HDR_MAGIC);
+ hdr->version = ui->ubi_ver;
+ hdr->ec = cpu_to_be64(ec);
+ hdr->vid_hdr_offset = cpu_to_be32(ui->vid_hdr_offs);
+ hdr->data_offset = cpu_to_be32(ui->data_offs);
- return 0;
+ crc = crc32(UBI_CRC32_INIT, hdr, UBI_EC_HDR_SIZE_CRC);
+ hdr->hdr_crc = cpu_to_be32(crc);
}
-void
-dump_info(ubi_info_t u ubi_unused)
+/**
+ * init_vid_hdr - initialize VID header.
+ * @ui: libubigen information
+ * @vi: volume information
+ * @hdr: the VID header to initialize
+ * @lnum: logical eraseblock number
+ * @data: the contents of the LEB (static volumes only)
+ * @data_size: amount of data in this LEB (static volumes only)
+ *
+ * Note, @used_ebs, @data and @data_size are ignored in case of dynamic
+ * volumes.
+ */
+static void init_vid_hdr(const struct ubigen_info *ui,
+ const struct ubigen_vol_info *vi,
+ struct ubi_vid_hdr *hdr, int lnum,
+ const void *data, int data_size)
{
-#ifdef DEBUG
- int err = 0;
- if (!u) {
- fprintf(stderr, "<empty>");
- return;
- }
- if (!u->ec) {
- fprintf(stderr, "<ec-empty>");
- err = 1;
- }
- if (!u->v) {
- fprintf(stderr, "<v-empty>");
- err = 1;
- }
- if (err) return;
-
- fprintf(stderr, "ubi volume\n");
- fprintf(stderr, "version : %8d\n", u->v->version);
- fprintf(stderr, "vol_id : %8d\n", be32_to_cpu(u->v->vol_id));
- fprintf(stderr, "vol_type : %8s\n",
- u->v->vol_type == UBI_VID_STATIC ?
- "static" : "dynamic");
- fprintf(stderr, "used_ebs : %8d\n",
- be32_to_cpu(u->v->used_ebs));
- fprintf(stderr, "eb_size : 0x%08x\n", u->eb_size);
- fprintf(stderr, "leb_size : 0x%08x\n", u->leb_size);
- fprintf(stderr, "data_pad : 0x%08x\n",
- be32_to_cpu(u->v->data_pad));
- fprintf(stderr, "leb_total : %8d\n", u->leb_total);
- fprintf(stderr, "header offs : 0x%08x\n",
- be32_to_cpu(u->ec->vid_hdr_offset));
- fprintf(stderr, "bytes_total : %8d\n", u->bytes_total);
- fprintf(stderr, " + in MiB : %8.2f M\n",
- ((float)(u->bytes_total)) / 1024 / 1024);
- fprintf(stderr, "-------------------------------\n\n");
-#else
- return;
-#endif
-}
+ uint32_t crc;
-int
-ubigen_destroy(ubi_info_t *u)
-{
- if (u == NULL)
- return -EINVAL;
-
- ubi_info_t tmp = *u;
-
- if (tmp) {
- if (tmp->v)
- free(tmp->v);
- if (tmp->ec)
- free(tmp->ec);
- if (tmp->buf)
- free(tmp->buf);
- free(tmp);
+ memset(hdr, '\0', sizeof(struct ubi_vid_hdr));
+
+ hdr->magic = cpu_to_be32(UBI_VID_HDR_MAGIC);
+ hdr->version = ui->ubi_ver;
+ hdr->vol_type = vi->type;
+ hdr->vol_id = cpu_to_be32(vi->id);
+ hdr->lnum = cpu_to_be32(lnum);
+ hdr->data_pad = cpu_to_be32(vi->data_pad);
+ hdr->compat = vi->compat;
+
+ if (vi->type == UBI_VID_STATIC) {
+ hdr->data_size = cpu_to_be32(data_size);
+ hdr->used_ebs = cpu_to_be32(vi->used_ebs);
+ crc = crc32(UBI_CRC32_INIT, data, data_size);
+ hdr->data_crc = cpu_to_be32(crc);
}
- *u = NULL;
- return 0;
-}
-void
-ubigen_init(void)
-{
- init_crc32_table(crc32_table);
+ crc = crc32(UBI_CRC32_INIT, hdr, UBI_VID_HDR_SIZE_CRC);
+ hdr->hdr_crc = cpu_to_be32(crc);
}
-int
-ubigen_create(ubi_info_t* u, uint32_t vol_id, uint8_t vol_type,
- uint32_t eb_size, uint64_t ec, uint32_t alignment,
- uint8_t version, uint32_t vid_hdr_offset, uint8_t compat_flag,
- size_t data_size, FILE* fp_in, FILE* fp_out)
+/**
+ * ubigen_write_volume - write UBI volume.
+ * @ui: libubigen information
+ * @vi: volume information
+ * @ec: erase coutner value to put to EC headers
+ * @bytes: volume size in bytes
+ * @in: input file descriptor (has to be properly seeked)
+ * @out: output file descriptor
+ *
+ * This function reads the contents of the volume from the input file @in and
+ * writes the UBI volume to the output file @out. Returns zero on success and
+ * %-1 on failure.
+ */
+int ubigen_write_volume(const struct ubigen_info *ui,
+ const struct ubigen_vol_info *vi, long long ec,
+ long long bytes, int in, int out)
{
- int rc = 0;
- ubi_info_t res = NULL;
- uint32_t crc;
- uint32_t data_offset;
+ int len = vi->usable_leb_size, rd, lnum = 0;
+ char inbuf[ui->leb_size], outbuf[ui->peb_size];
- if (alignment == 0) {
- rc = EUBIGEN_INVALID_ALIGNMENT;
- goto ubigen_create_err;
- }
- if ((fp_in == NULL) || (fp_out == NULL)) {
- rc = -EINVAL;
- goto ubigen_create_err;
- }
+ if (vi->id >= ui->max_volumes)
+ return errmsg("too high volume id %d, max. volumes is %d",
+ vi->id, ui->max_volumes);
- res = (ubi_info_t) calloc(1, sizeof(struct ubi_info));
- if (res == NULL) {
- rc = -ENOMEM;
- goto ubigen_create_err;
- }
+ if (vi->alignment >= ui->leb_size)
+ return errmsg("too large alignment %d, max is %d (LEB size)",
+ vi->alignment, ui->leb_size);
- res->v = (struct ubi_vid_hdr*) calloc(1, sizeof(struct ubi_vid_hdr));
- if (res->v == NULL) {
- rc = -ENOMEM;
- goto ubigen_create_err;
- }
+ memset(outbuf, 0xFF, ui->data_offs);
+ ubigen_init_ec_hdr(ui, (struct ubi_ec_hdr *)outbuf, ec);
- res->ec = (struct ubi_ec_hdr*) calloc(1, sizeof(struct ubi_ec_hdr));
- if (res->ec == NULL) {
- rc = -ENOMEM;
- goto ubigen_create_err;
- }
+ while (bytes) {
+ int l;
+ struct ubi_vid_hdr *vid_hdr;
- /* data which is needed in the general process */
- vid_hdr_offset = vid_hdr_offset ? vid_hdr_offset : DEFAULT_VID_OFFSET;
- data_offset = vid_hdr_offset + UBI_VID_HDR_SIZE;
- res->bytes_total = data_size;
- res->eb_size = eb_size ? eb_size : DEFAULT_BLOCKSIZE;
- res->data_pad = (res->eb_size - data_offset) % alignment;
- res->leb_size = res->eb_size - data_offset - res->data_pad;
- res->leb_total = byte_to_blk(data_size, res->leb_size);
- res->alignment = alignment;
-
- if ((res->eb_size < (vid_hdr_offset + UBI_VID_HDR_SIZE))) {
- rc = EUBIGEN_TOO_SMALL_EB;
- goto ubigen_create_err;
- }
- res->fp_in = fp_in;
- res->fp_out = fp_out;
-
- /* vid hdr data which doesn't change */
- res->v->magic = cpu_to_be32(UBI_VID_HDR_MAGIC);
- res->v->version = version ? version : UBI_VERSION;
- res->v->vol_type = vol_type;
- res->v->vol_id = cpu_to_be32(vol_id);
- res->v->compat = compat_flag;
- res->v->data_pad = cpu_to_be32(res->data_pad);
-
- /* static only: used_ebs */
- if (res->v->vol_type == UBI_VID_STATIC) {
- res->v->used_ebs = cpu_to_be32(byte_to_blk
- (res->bytes_total,
- res->leb_size));
- }
+ if (bytes < len)
+ len = bytes;
+ bytes -= len;
- /* ec hdr (fixed, doesn't change) */
- res->ec->magic = cpu_to_be32(UBI_EC_HDR_MAGIC);
- res->ec->version = version ? version : UBI_VERSION;
- res->ec->ec = cpu_to_be64(ec);
- res->ec->vid_hdr_offset = cpu_to_be32(vid_hdr_offset);
+ l = len;
+ do {
+ rd = read(in, inbuf + len - l, l);
+ if (rd != l)
+ return sys_errmsg("cannot read %d bytes from the input file", l);
- res->ec->data_offset = cpu_to_be32(data_offset);
+ l -= rd;
+ } while (l);
- crc = clc_crc32(crc32_table, UBI_CRC32_INIT, res->ec,
- UBI_EC_HDR_SIZE_CRC);
- res->ec->hdr_crc = cpu_to_be32(crc);
+ vid_hdr = (struct ubi_vid_hdr *)(&outbuf[ui->vid_hdr_offs]);
+ init_vid_hdr(ui, vi, vid_hdr, lnum, inbuf, len);
- /* prepare a read buffer */
- res->buf = (uint8_t*) malloc (res->eb_size * sizeof(uint8_t));
- if (res->buf == NULL) {
- rc = -ENOMEM;
- goto ubigen_create_err;
- }
-
- /* point to distinct regions within the buffer */
- res->ptr_ec_hdr = res->buf;
- res->ptr_vid_hdr = res->buf + be32_to_cpu(res->ec->vid_hdr_offset);
- res->ptr_data = res->buf + be32_to_cpu(res->ec->vid_hdr_offset)
- + UBI_VID_HDR_SIZE;
+ memcpy(outbuf + ui->data_offs, inbuf, len);
+ memset(outbuf + ui->data_offs + len, 0xFF,
+ ui->peb_size - ui->data_offs - len);
- rc = validate_ubi_info(res);
- if (rc != 0) {
- fprintf(stderr, "Volume validation failed: %d\n", rc);
- goto ubigen_create_err;
- }
+ if (write(out, outbuf, ui->peb_size) != ui->peb_size)
+ return sys_errmsg("cannot write %d bytes to the output file", ui->peb_size);
- dump_info(res);
- *u = res;
- return rc;
-
- ubigen_create_err:
- if (res) {
- if (res->v)
- free(res->v);
- if (res->ec)
- free(res->ec);
- if (res->buf)
- free(res->buf);
- free(res);
+ lnum += 1;
}
- *u = NULL;
- return rc;
-}
-int
-ubigen_get_leb_size(ubi_info_t u, size_t* size)
-{
- if (u == NULL)
- return -EINVAL;
-
- *size = u->leb_size;
return 0;
}
-
-int
-ubigen_get_leb_total(ubi_info_t u, size_t* total)
-{
- if (u == NULL)
- return -EINVAL;
-
- *total = u->leb_total;
- return 0;
-}
-
-int
-ubigen_set_lvol_rec(ubi_info_t u, size_t reserved_bytes,
- const char* vol_name, struct ubi_vtbl_record *lvol_rec)
+/**
+ * ubigen_write_layout_vol - write UBI layout volume
+ * @ui: libubigen information
+ * @peb1: physical eraseblock number to write the first volume table copy
+ * @peb2: physical eraseblock number to write the second volume table copy
+ * @ec1: erase counter value for @peb1
+ * @ec2: erase counter value for @peb1
+ * @vtbl: volume table
+ * @fd: output file descriptor seeked to the proper position
+ *
+ * This function creates the UBI layout volume which contains 2 copies of the
+ * volume table. Returns zero in case of success and %-1 in case of failure.
+ */
+int ubigen_write_layout_vol(const struct ubigen_info *ui, int peb1, int peb2,
+ long long ec1, long long ec2,
+ struct ubi_vtbl_record *vtbl, int fd)
{
- uint32_t crc;
-
- if ((u == NULL) || (vol_name == NULL))
- return -EINVAL;
-
- memset(lvol_rec, 0x0, UBI_VTBL_RECORD_SIZE);
-
- lvol_rec->reserved_pebs =
- cpu_to_be32(byte_to_blk(reserved_bytes, u->leb_size));
- lvol_rec->alignment = cpu_to_be32(u->alignment);
- lvol_rec->data_pad = u->v->data_pad;
- lvol_rec->vol_type = u->v->vol_type;
-
- lvol_rec->name_len =
- cpu_to_be16((uint16_t)strlen((const char*)vol_name));
-
- memcpy(lvol_rec->name, vol_name, UBI_VOL_NAME_MAX + 1);
-
- crc = clc_crc32(crc32_table, UBI_CRC32_INIT,
- lvol_rec, UBI_VTBL_RECORD_SIZE_CRC);
- lvol_rec->crc = cpu_to_be32(crc);
+ int ret;
+ struct ubigen_vol_info vi;
+ char outbuf[ui->peb_size];
+ struct ubi_vid_hdr *vid_hdr;
+ off_t seek;
+
+ vi.bytes = ui->leb_size * UBI_LAYOUT_VOLUME_EBS;
+ vi.id = UBI_LAYOUT_VOLUME_ID;
+ vi.alignment = UBI_LAYOUT_VOLUME_ALIGN;
+ vi.data_pad = ui->leb_size % UBI_LAYOUT_VOLUME_ALIGN;
+ vi.usable_leb_size = ui->leb_size - vi.data_pad;
+ vi.data_pad = ui->leb_size - vi.usable_leb_size;
+ vi.type = UBI_LAYOUT_VOLUME_TYPE;
+ vi.name = UBI_LAYOUT_VOLUME_NAME;
+ vi.name_len = strlen(UBI_LAYOUT_VOLUME_NAME);
+ vi.compat = UBI_LAYOUT_VOLUME_COMPAT;
+
+ memset(outbuf, 0xFF, ui->data_offs);
+ vid_hdr = (struct ubi_vid_hdr *)(&outbuf[ui->vid_hdr_offs]);
+ memcpy(outbuf + ui->data_offs, vtbl, ui->vtbl_size);
+ memset(outbuf + ui->data_offs + ui->vtbl_size, 0xFF,
+ ui->peb_size - ui->data_offs - ui->vtbl_size);
+
+ seek = peb1 * ui->peb_size;
+ if (lseek(fd, seek, SEEK_SET) != seek)
+ return sys_errmsg("cannot seek output file");
+ ubigen_init_ec_hdr(ui, (struct ubi_ec_hdr *)outbuf, ec1);
+ init_vid_hdr(ui, &vi, vid_hdr, 0, NULL, 0);
+ ret = write(fd, outbuf, ui->peb_size);
+ if (ret != ui->peb_size)
+ return sys_errmsg("cannot write %d bytes", ui->peb_size);
+
+ seek = peb2 * ui->peb_size;
+ if (lseek(fd, seek, SEEK_SET) != seek)
+ return sys_errmsg("cannot seek output file");
+ ubigen_init_ec_hdr(ui, (struct ubi_ec_hdr *)outbuf, ec2);
+ init_vid_hdr(ui, &vi, vid_hdr, 1, NULL, 0);
+ ret = write(fd, outbuf, ui->peb_size);
+ if (ret != ui->peb_size)
+ return sys_errmsg("cannot write %d bytes", ui->peb_size);
return 0;
}