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-rw-r--r--ubi-utils/src/ubiattach.c224
1 files changed, 224 insertions, 0 deletions
diff --git a/ubi-utils/src/ubiattach.c b/ubi-utils/src/ubiattach.c
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+++ b/ubi-utils/src/ubiattach.c
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+/*
+ * Copyright (C) 2007 Nokia Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * 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., 51
+ * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * An utility to attach MTD devices to UBI.
+ *
+ * Author: Artem Bityutskiy
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <getopt.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <libubi.h>
+#include "common.h"
+
+#define PROGRAM_VERSION "1.0"
+#define PROGRAM_NAME "ubiattach"
+
+/* The variables below are set by command line arguments */
+struct args {
+ int devn;
+ int mtdn;
+ int vidoffs;
+ const char *node;
+};
+
+static struct args myargs = {
+ .devn = UBI_DEV_NUM_AUTO,
+ .mtdn = -1,
+ .vidoffs = 0,
+ .node = NULL,
+};
+
+static const char *doc = PROGRAM_NAME " version " PROGRAM_VERSION
+ " - a tool to attach MTD device to UBI.";
+
+static const char *optionsstr =
+"-d, --devn=<UBI device number> the number to assign to the newly created UBI device\n"
+" (the number is assigned automatically if this is not\n"
+" specified\n"
+"-m, --mtdn=<MTD device number> MTD device number to attach\n"
+"-o, --vid-hdr-offset VID header offset (do not specify this unless you\n"
+" really know what you do and the optimal defaults wukk\n"
+" be used)\n"
+"-h, --help print help message\n"
+"-V, --version print program version";
+
+static const char *usage =
+"Usage: " PROGRAM_NAME "<UBI control device node file name> [-m <MTD device number>] [-d <UBI device number>]\n"
+"\t\t[--mtdn=<MTD device number>] [--devn <UBI device number>]\n"
+"Example 1: " PROGRAM_NAME " /dev/ubi_ctrl -m 0 - attach MTD device 0 (mtd0) to UBI\n"
+"Example 2: " PROGRAM_NAME " /dev/ubi_ctrl -m 0 -d 3 - attach MTD device 0 (mtd0) to UBI and\n"
+" and create UBI device number 3 (ubi3)";
+
+static const struct option long_options[] = {
+ { .name = "devn", .has_arg = 1, .flag = NULL, .val = 'd' },
+ { .name = "mtdn", .has_arg = 1, .flag = NULL, .val = 'm' },
+ { .name = "vid-hdr-offset", .has_arg = 1, .flag = NULL, .val = 'o' },
+ { .name = "help", .has_arg = 0, .flag = NULL, .val = 'h' },
+ { .name = "version", .has_arg = 0, .flag = NULL, .val = 'V' },
+ { NULL, 0, NULL, 0},
+};
+
+static int parse_opt(int argc, char * const argv[])
+{
+ while (1) {
+ int key;
+ char *endp;
+
+ key = getopt_long(argc, argv, "m:d:ohV", long_options, NULL);
+ if (key == -1)
+ break;
+
+ switch (key) {
+ case 'd':
+ myargs.devn = strtoul(optarg, &endp, 0);
+ if (*endp != '\0' || endp == optarg || myargs.devn < 0) {
+ errmsg("bad UBI device number: \"%s\"", optarg);
+ return -1;
+ }
+
+ break;
+
+ case 'm':
+ myargs.mtdn = strtoul(optarg, &endp, 0);
+ if (*endp != '\0' || endp == optarg || myargs.mtdn < 0) {
+ errmsg("bad MTD device number: \"%s\"", optarg);
+ return -1;
+ }
+
+ break;
+
+ case 'o':
+ myargs.vidoffs = strtoul(optarg, &endp, 0);
+ if (*endp != '\0' || endp == optarg || myargs.vidoffs <= 0) {
+ errmsg("bad VID header offset: \"%s\"", optarg);
+ return -1;
+ }
+
+ break;
+
+ case 'h':
+ fprintf(stderr, "%s\n\n", doc);
+ fprintf(stderr, "%s\n\n", usage);
+ fprintf(stderr, "%s\n", optionsstr);
+ exit(0);
+
+ case 'V':
+ fprintf(stderr, "%s\n", PROGRAM_VERSION);
+ exit(0);
+
+ case ':':
+ errmsg("parameter is missing");
+ return -1;
+
+ default:
+ fprintf(stderr, "Use -h for help\n");
+ exit(-1);
+ }
+ }
+
+ if (optind == argc) {
+ errmsg("UBI control device name was not specified (use -h for help)");
+ return -1;
+ } else if (optind != argc - 1) {
+ errmsg("more then one UBI control device specified (use -h for help)");
+ return -1;
+ }
+
+ if (myargs.mtdn == -1) {
+ errmsg("MTD device number was not specified (use -h for help)");
+ return -1;
+ }
+
+ myargs.node = argv[optind];
+ return 0;
+}
+
+int main(int argc, char * const argv[])
+{
+ int err;
+ libubi_t libubi;
+ struct ubi_info ubi_info;
+ struct ubi_dev_info dev_info;
+ struct ubi_attach_request req;
+
+ err = parse_opt(argc, argv);
+ if (err)
+ return -1;
+
+ libubi = libubi_open();
+ if (libubi == NULL) {
+ errmsg("cannot open libubi");
+ perror("libubi_open");
+ return -1;
+ }
+
+ /*
+ * Make sure the kernel is fresh enough and this feature is supported.
+ */
+ err = ubi_get_info(libubi, &ubi_info);
+ if (err) {
+ errmsg("cannot get UBI information");
+ perror("ubi_get_info");
+ goto out_libubi;
+ }
+
+ if (ubi_info.ctrl_major == -1) {
+ errmsg("MTD attach/detach feature is not supported by your kernel");
+ goto out_libubi;
+ }
+
+ req.dev_num = myargs.devn;
+ req.mtd_num = myargs.mtdn;
+ req.vid_hdr_offset = myargs.vidoffs;
+
+ err = ubi_attach_mtd(libubi, myargs.node, &req);
+ if (err) {
+ errmsg("cannot attach mtd%d", myargs.mtdn);
+ perror("ubi_attach_mtd");
+ goto out_libubi;
+ }
+
+ /* Print some information about the new UBI device */
+ err = ubi_get_dev_info1(libubi, req.dev_num, &dev_info);
+ if (err) {
+ errmsg("cannot get information about newly created UBI device");
+ perror("ubi_get_dev_info1");
+ goto out_libubi;
+ }
+
+ printf("UBI device number %d, total %d LEBs (", dev_info.dev_num, dev_info.total_lebs);
+ ubiutils_print_bytes(dev_info.total_bytes, 0);
+ printf("), available %d LEBs (", dev_info.avail_lebs);
+ ubiutils_print_bytes(dev_info.avail_bytes, 0);
+ printf("), LEB size ");
+ ubiutils_print_bytes(dev_info.leb_size, 1);
+ printf("\n");
+
+ libubi_close(libubi);
+ return 0;
+
+out_libubi:
+ libubi_close(libubi);
+ return -1;
+}
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