248 lines
6.3 KiB
C
248 lines
6.3 KiB
C
/*-
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* Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <assert.h>
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#include <libgeom.h>
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#include <geom/label/g_label.h>
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#include "core/geom.h"
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#include "misc/subr.h"
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uint32_t lib_version = G_LIB_VERSION;
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uint32_t version = G_LABEL_VERSION;
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static void label_main(struct gctl_req *req, unsigned flags);
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static void label_clear(struct gctl_req *req);
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static void label_dump(struct gctl_req *req);
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static void label_label(struct gctl_req *req);
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struct g_command class_commands[] = {
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{ "clear", G_FLAG_VERBOSE, label_main, G_NULL_OPTS,
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"[-v] dev ..."
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},
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{ "create", G_FLAG_VERBOSE | G_FLAG_LOADKLD, NULL, G_NULL_OPTS,
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"[-v] name dev"
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},
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{ "destroy", G_FLAG_VERBOSE, NULL,
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{
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{ 'f', "force", NULL, G_TYPE_NONE },
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G_OPT_SENTINEL
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},
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"[-fv] name ..."
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},
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{ "dump", 0, label_main, G_NULL_OPTS,
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"dev ..."
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},
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{ "label", G_FLAG_VERBOSE | G_FLAG_LOADKLD, label_main, G_NULL_OPTS,
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"[-v] name dev"
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},
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{ "stop", G_FLAG_VERBOSE, NULL,
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{
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{ 'f', "force", NULL, G_TYPE_NONE },
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G_OPT_SENTINEL
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},
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"[-fv] name ..."
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},
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G_CMD_SENTINEL
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};
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static int verbose = 0;
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static void
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label_main(struct gctl_req *req, unsigned flags)
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{
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const char *name;
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if ((flags & G_FLAG_VERBOSE) != 0)
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verbose = 1;
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name = gctl_get_asciiparam(req, "verb");
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if (name == NULL) {
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gctl_error(req, "No '%s' argument.", "verb");
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return;
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}
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if (strcmp(name, "label") == 0)
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label_label(req);
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else if (strcmp(name, "clear") == 0)
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label_clear(req);
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else if (strcmp(name, "dump") == 0)
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label_dump(req);
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else
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gctl_error(req, "Unknown command: %s.", name);
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}
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static void
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label_label(struct gctl_req *req)
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{
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struct g_label_metadata md;
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const char *name, *label;
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u_char sector[512];
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int *nargs, error;
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nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
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if (nargs == NULL) {
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gctl_error(req, "No '%s' argument.", "nargs");
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return;
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}
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if (*nargs != 2) {
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gctl_error(req, "Invalid number of arguments.");
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return;
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}
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/*
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* Clear last sector first to spoil all components if device exists.
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*/
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name = gctl_get_asciiparam(req, "arg1");
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if (name == NULL) {
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gctl_error(req, "No 'arg%u' argument.", 1);
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return;
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}
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error = g_metadata_clear(name, NULL);
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if (error != 0) {
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gctl_error(req, "Can't store metadata on %s: %s.", name,
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strerror(error));
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return;
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}
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strlcpy(md.md_magic, G_LABEL_MAGIC, sizeof(md.md_magic));
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md.md_version = G_LABEL_VERSION;
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label = gctl_get_asciiparam(req, "arg0");
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if (label == NULL) {
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gctl_error(req, "No 'arg%u' argument.", 0);
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return;
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}
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strlcpy(md.md_label, label, sizeof(md.md_label));
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md.md_provsize = g_get_mediasize(name);
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if (md.md_provsize == 0) {
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gctl_error(req, "Can't get mediasize of %s: %s.", name,
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strerror(errno));
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return;
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}
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/*
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* Ok, store metadata.
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*/
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label_metadata_encode(&md, sector);
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error = g_metadata_store(name, sector, sizeof(sector));
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if (error != 0) {
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fprintf(stderr, "Can't store metadata on %s: %s.\n", name,
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strerror(error));
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gctl_error(req, "Not done.");
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}
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if (verbose)
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printf("Metadata value stored on %s.\n", name);
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}
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static void
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label_clear(struct gctl_req *req)
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{
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const char *name;
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char param[16];
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unsigned i;
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int *nargs, error;
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nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
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if (nargs == NULL) {
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gctl_error(req, "No '%s' argument.", "nargs");
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return;
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}
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if (*nargs < 1) {
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gctl_error(req, "Too few arguments.");
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return;
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}
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for (i = 0; i < (unsigned)*nargs; i++) {
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snprintf(param, sizeof(param), "arg%u", i);
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name = gctl_get_asciiparam(req, param);
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error = g_metadata_clear(name, G_LABEL_MAGIC);
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if (error != 0) {
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fprintf(stderr, "Can't clear metadata on %s: %s.\n",
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name, strerror(error));
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gctl_error(req, "Not fully done.");
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continue;
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}
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if (verbose)
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printf("Metadata cleared on %s.\n", name);
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}
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}
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static void
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label_metadata_dump(const struct g_label_metadata *md)
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{
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printf(" Magic string: %s\n", md->md_magic);
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printf("Metadata version: %u\n", (u_int)md->md_version);
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printf(" Label: %s\n", md->md_label);
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}
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static void
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label_dump(struct gctl_req *req)
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{
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struct g_label_metadata md, tmpmd;
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const char *name;
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char param[16];
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int *nargs, error, i;
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nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
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if (nargs == NULL) {
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gctl_error(req, "No '%s' argument.", "nargs");
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return;
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}
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if (*nargs < 1) {
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gctl_error(req, "Too few arguments.");
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return;
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}
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for (i = 0; i < *nargs; i++) {
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snprintf(param, sizeof(param), "arg%u", i);
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name = gctl_get_asciiparam(req, param);
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error = g_metadata_read(name, (u_char *)&tmpmd, sizeof(tmpmd),
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G_LABEL_MAGIC);
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if (error != 0) {
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fprintf(stderr, "Can't read metadata from %s: %s.\n",
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name, strerror(error));
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gctl_error(req, "Not fully done.");
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continue;
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}
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label_metadata_decode((u_char *)&tmpmd, &md);
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printf("Metadata on %s:\n", name);
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label_metadata_dump(&md);
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printf("\n");
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}
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}
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