summaryrefslogtreecommitdiff
path: root/ubi-utils/src/ubirmvol.c
diff options
context:
space:
mode:
Diffstat (limited to 'ubi-utils/src/ubirmvol.c')
-rw-r--r--ubi-utils/src/ubirmvol.c230
1 files changed, 230 insertions, 0 deletions
diff --git a/ubi-utils/src/ubirmvol.c b/ubi-utils/src/ubirmvol.c
new file mode 100644
index 0000000..a4cf1df
--- /dev/null
+++ b/ubi-utils/src/ubirmvol.c
@@ -0,0 +1,230 @@
+/*
+ * 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.
+ */
+
+/*
+ * An utility to remove UBI volumes.
+ *
+ * Authors: Artem Bityutskiy <dedekind@infradead.org>
+ * Frank Haverkamp <haver@vnet.ibm.com>
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <getopt.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <libubi.h>
+#include "common.h"
+
+#define PROGRAM_VERSION "1.0"
+#define PROGRAM_NAME "ubirmvol"
+
+/* The variables below are set by command line arguments */
+struct args {
+ int vol_id;
+ const char *node;
+ const char *name;
+ /* For deprecated -d option handling */
+ int devn;
+ char dev_name[256];
+};
+
+static struct args args = {
+ .vol_id = -1,
+ .devn = -1,
+};
+
+static const char *doc = PROGRAM_NAME " version " PROGRAM_VERSION
+ " - a tool to remove UBI volumes.";
+
+static const char *optionsstr =
+"-n, --vol_id=<volume id> volume ID to remove\n"
+"-N, --name=<volume name> volume name to remove\n"
+"-h, -?, --help print help message\n"
+"-V, --version print program version\n\n"
+"The following is a compatibility option which is deprecated, do not use it\n"
+"-d, --devn=<devn> UBI device number - may be used instead of the UBI\n"
+" device node name in which case the utility assumes\n"
+" that the device node is \"/dev/ubi<devn>\"";
+
+static const char *usage =
+"Usage: " PROGRAM_NAME " <UBI device node file name> [-n <volume id>] [--vol_id=<volume id>]\n\n"
+" [-N <volume name>] [--name=<volume name>] [-h] [--help]\n\n"
+"Example: " PROGRAM_NAME "/dev/ubi0 -n 1 - remove UBI volume 1 from UBI device corresponding\n"
+" to /dev/ubi0\n"
+" " PROGRAM_NAME "/dev/ubi0 -N my_vol - remove UBI named \"my_vol\" from UBI device\n"
+" corresponding to /dev/ubi0";
+
+static const struct option long_options[] = {
+ { .name = "vol_id", .has_arg = 1, .flag = NULL, .val = 'n' },
+ { .name = "name", .has_arg = 1, .flag = NULL, .val = 'N' },
+ { .name = "help", .has_arg = 0, .flag = NULL, .val = 'h' },
+ { .name = "version", .has_arg = 0, .flag = NULL, .val = 'V' },
+ /* Deprecated -d option */
+ { .name = "devn", .has_arg = 1, .flag = NULL, .val = 'd' },
+ { NULL, 0, NULL, 0},
+};
+
+static int param_sanity_check(void)
+{
+ if (args.vol_id == -1 && !args.name) {
+ errmsg("please, specify either volume ID or volume name");
+ return -1;
+ }
+
+ if (args.vol_id != -1 && args.name) {
+ errmsg("please, specify either volume ID or volume name, not both");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int parse_opt(int argc, char * const argv[])
+{
+ while (1) {
+ int key;
+ char *endp;
+
+ key = getopt_long(argc, argv, "n:N:h?Vd:", long_options, NULL);
+ if (key == -1)
+ break;
+
+ switch (key) {
+
+ case 'n':
+ args.vol_id = strtoul(optarg, &endp, 0);
+ if (*endp != '\0' || endp == optarg || args.vol_id < 0) {
+ errmsg("bad volume ID: " "\"%s\"", optarg);
+ return -1;
+ }
+ break;
+
+ case 'N':
+ args.name = optarg;
+ break;
+
+ case 'h':
+ case '?':
+ fprintf(stderr, "%s\n\n", doc);
+ fprintf(stderr, "%s\n\n", usage);
+ fprintf(stderr, "%s\n", optionsstr);
+ exit(EXIT_SUCCESS);
+
+ case 'd':
+ /* Handle deprecated -d option */
+ warnmsg("-d is depricated and will be removed, do not use it");
+ args.devn = strtoul(optarg, &endp, 0);
+ if (*endp != '\0' || endp == optarg || args.devn < 0)
+ return errmsg("bad UBI device number: " "\"%s\"", optarg);
+ break;
+
+ case 'V':
+ fprintf(stderr, "%s\n", PROGRAM_VERSION);
+ exit(EXIT_SUCCESS);
+
+ case ':':
+ errmsg("parameter is missing");
+ return -1;
+
+ default:
+ fprintf(stderr, "Use -h for help\n");
+ return -1;
+ }
+ }
+
+ /* Handle deprecated -d option */
+ if (args.devn != -1) {
+ sprintf(args.dev_name, "/dev/ubi%d", args.devn);
+ args.node = args.dev_name;
+ } else {
+ if (optind == argc) {
+ errmsg("UBI device name was not specified (use -h for help)");
+ return -1;
+ } else if (optind != argc - 1) {
+ errmsg("more then one UBI device specified (use -h for help)");
+ return -1;
+ }
+
+ args.node = argv[optind];
+ }
+
+ if (param_sanity_check())
+ return -1;
+
+ return 0;
+}
+
+int main(int argc, char * const argv[])
+{
+ int err;
+ libubi_t libubi;
+
+ err = parse_opt(argc, argv);
+ if (err)
+ return -1;
+
+ libubi = libubi_open(1);
+ if (libubi == NULL)
+ return sys_errmsg("cannot open libubi");
+
+ err = ubi_node_type(libubi, args.node);
+ if (err == 2) {
+ errmsg("\"%s\" is an UBI volume node, not an UBI device node",
+ args.node);
+ goto out_libubi;
+ } else if (err < 0) {
+ errmsg("\"%s\" is not an UBI device node", args.node);
+ goto out_libubi;
+ }
+
+ if (args.name) {
+ struct ubi_dev_info dev_info;
+ struct ubi_vol_info vol_info;
+
+ err = ubi_get_dev_info(libubi, args.node, &dev_info);
+ if (err) {
+ sys_errmsg("cannot get information about UBI device \"%s\"",
+ args.node);
+ goto out_libubi;
+ }
+
+ err = ubi_get_vol_info1_nm(libubi, dev_info.dev_num,
+ args.name, &vol_info);
+ if (err) {
+ sys_errmsg("cannot find UBI volume \"%s\"", args.name);
+ goto out_libubi;
+ }
+
+ args.vol_id = vol_info.vol_id;
+ }
+
+ err = ubi_rmvol(libubi, args.node, args.vol_id);
+ if (err) {
+ sys_errmsg("cannot UBI remove volume");
+ goto out_libubi;
+ }
+
+ libubi_close(libubi);
+ return 0;
+
+out_libubi:
+ libubi_close(libubi);
+ return -1;
+}