aboutsummaryrefslogtreecommitdiff
path: root/ubi-utils/old-tools/src/libubigen.c
diff options
context:
space:
mode:
authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2008-02-19 14:54:17 +0200
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2008-02-19 16:41:16 +0200
commit86dd9696d3a1acb036d65909d93d73455b8aed3a (patch)
tree9e8bb6797b3bebd0bf83ae1fab2151a6dfeafe6a /ubi-utils/old-tools/src/libubigen.c
parentef644090223e5983ca2492850354c1390e3368d1 (diff)
Revert ubi-tools changes
Restore ubi tools to their "original" state, which means to the state they were before I stareted cleaning them up. Instead, create a "new-utils" subdirectory and move my work there. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'ubi-utils/old-tools/src/libubigen.c')
-rw-r--r--ubi-utils/old-tools/src/libubigen.c486
1 files changed, 0 insertions, 486 deletions
diff --git a/ubi-utils/old-tools/src/libubigen.c b/ubi-utils/old-tools/src/libubigen.c
deleted file mode 100644
index d2cd087..0000000
--- a/ubi-utils/old-tools/src/libubigen.c
+++ /dev/null
@@ -1,486 +0,0 @@
-/*
- * Copyright (c) International Business Machines Corp., 2006
- *
- * 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
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
- *
- * 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.
- *
- * Author: Oliver Lohmann
- *
- * Add UBI headers to binary data.
- */
-
-#include <stdlib.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-#include <mtd/ubi-header.h>
-
-#include "config.h"
-#include "ubigen.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 peb_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 peb_size)
-{
- return (byte % peb_size) == 0
- ? (byte / peb_size)
- : (byte / peb_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->peb_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)
-{
- 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);
- }
- 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->peb_size, u->fp_out);
- if (written != u->peb_size) {
- return -EIO;
- }
- return 0;
-}
-
-int
-ubigen_write_leb(ubi_info_t u, ubigen_action_t action)
-{
- int rc = 0;
- size_t read = 0;
-
- clear_buf(u);
- write_ec_hdr(u);
-
- 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);
- }
-
- u->v->lnum = cpu_to_be32(u->blks_written);
-
- if (action & MARK_AS_UPDATE) {
- u->v->copy_flag = (u->v->copy_flag)++;
- }
-
- 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;
-}
-
-int
-ubigen_write_complete(ubi_info_t u)
-{
- 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;
- }
-
- return 0;
-}
-
-int
-ubigen_write_broken_update(ubi_info_t u, uint32_t blk)
-{
- int rc = 0;
-
- rc = skip_blks(u, blk);
- if (rc != 0)
- return rc;
-
- rc = ubigen_write_leb(u, MARK_AS_UPDATE | BROKEN_DATA_CRC);
- if (rc != 0)
- return rc;
-
-
- return 0;
-}
-
-void
-dump_info(ubi_info_t u ubi_unused)
-{
-#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, "peb_size : 0x%08x\n", u->peb_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
-}
-
-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);
- }
- *u = NULL;
- return 0;
-}
-
-void
-ubigen_init(void)
-{
- init_crc32_table(crc32_table);
-}
-
-int
-ubigen_create(ubi_info_t* u, uint32_t vol_id, uint8_t vol_type,
- uint32_t peb_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)
-{
- int rc = 0;
- ubi_info_t res = NULL;
- uint32_t crc;
- uint32_t data_offset;
-
- if (alignment == 0) {
- rc = EUBIGEN_INVALID_ALIGNMENT;
- goto ubigen_create_err;
- }
- if ((fp_in == NULL) || (fp_out == NULL)) {
- rc = -EINVAL;
- goto ubigen_create_err;
- }
-
- res = (ubi_info_t) calloc(1, sizeof(struct ubi_info));
- if (res == NULL) {
- rc = -ENOMEM;
- goto ubigen_create_err;
- }
-
- res->v = (struct ubi_vid_hdr*) calloc(1, sizeof(struct ubi_vid_hdr));
- if (res->v == NULL) {
- rc = -ENOMEM;
- goto ubigen_create_err;
- }
-
- res->ec = (struct ubi_ec_hdr*) calloc(1, sizeof(struct ubi_ec_hdr));
- if (res->ec == NULL) {
- rc = -ENOMEM;
- goto ubigen_create_err;
- }
-
- /* 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->peb_size = peb_size ? peb_size : DEFAULT_BLOCKSIZE;
- res->data_pad = (res->peb_size - data_offset) % alignment;
- res->leb_size = res->peb_size - data_offset - res->data_pad;
- res->leb_total = byte_to_blk(data_size, res->leb_size);
- res->alignment = alignment;
-
- if ((res->peb_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));
- }
-
- /* 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);
-
- res->ec->data_offset = cpu_to_be32(data_offset);
-
- crc = clc_crc32(crc32_table, UBI_CRC32_INIT, res->ec,
- UBI_EC_HDR_SIZE_CRC);
- res->ec->hdr_crc = cpu_to_be32(crc);
-
- /* prepare a read buffer */
- res->buf = (uint8_t*) malloc (res->peb_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;
-
- rc = validate_ubi_info(res);
- if (rc != 0) {
- fprintf(stderr, "Volume validation failed: %d\n", rc);
- goto ubigen_create_err;
- }
-
- 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);
- }
- *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)
-{
- 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);
-
- return 0;
-}