Add userland control utility for gjournal GEOM class.
Sponsored by: home.pl
This commit is contained in:
Pawel Jakub Dawidek
parent
a23d879f34
commit
bd7f6c2999
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=163838
14
sbin/geom/class/journal/Makefile
Normal file
14
sbin/geom/class/journal/Makefile
Normal file
@ -0,0 +1,14 @@
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# $FreeBSD$
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.PATH: ${.CURDIR}/../../misc
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CLASS= journal
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SRCS+= geom_journal_ufs.c
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DPADD= ${LIBMD} ${LIBUFS}
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LDADD= -lmd -lufs
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NO_MAN=
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CFLAGS+=-I${.CURDIR}/../../../../sys
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.include <bsd.lib.mk>
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340
sbin/geom/class/journal/geom_journal.c
Normal file
340
sbin/geom/class/journal/geom_journal.c
Normal file
@ -0,0 +1,340 @@
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/*-
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* Copyright (c) 2005-2006 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
|
||||
* 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
|
||||
* 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/types.h>
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#include <errno.h>
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#include <paths.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.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/journal/g_journal.h>
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#include <core/geom.h>
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#include <misc/subr.h>
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#include "geom_journal.h"
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uint32_t lib_version = G_LIB_VERSION;
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uint32_t version = G_JOURNAL_VERSION;
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static intmax_t default_jsize = -1;
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static void journal_main(struct gctl_req *req, unsigned flags);
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static void journal_clear(struct gctl_req *req);
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static void journal_dump(struct gctl_req *req);
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static void journal_label(struct gctl_req *req);
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struct g_command class_commands[] = {
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{ "clear", G_FLAG_VERBOSE, journal_main, G_NULL_OPTS,
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"[-v] prov ..."
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},
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{ "dump", 0, journal_main, G_NULL_OPTS,
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"prov ..."
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},
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{ "label", G_FLAG_VERBOSE, journal_main,
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{
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{ 'c', "checksum", NULL, G_TYPE_BOOL },
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{ 'f', "force", NULL, G_TYPE_BOOL },
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{ 'h', "hardcode", NULL, G_TYPE_BOOL },
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{ 's', "jsize", &default_jsize, G_TYPE_NUMBER },
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G_OPT_SENTINEL
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},
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"[-cfhv] [-s jsize] dataprov [jprov]"
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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_BOOL },
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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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{ "sync", G_FLAG_VERBOSE, NULL, G_NULL_OPTS,
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"[-v]"
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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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journal_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_ascii(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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journal_label(req);
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else if (strcmp(name, "clear") == 0)
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journal_clear(req);
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else if (strcmp(name, "dump") == 0)
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journal_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 int
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g_journal_fs_exists(const char *prov)
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{
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if (g_journal_ufs_exists(prov))
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return (1);
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#if 0
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if (g_journal_otherfs_exists(prov))
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return (1);
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#endif
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return (0);
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}
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static int
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g_journal_fs_using_last_sector(const char *prov)
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{
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if (g_journal_ufs_using_last_sector(prov))
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return (1);
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#if 0
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if (g_journal_otherfs_using_last_sector(prov))
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return (1);
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#endif
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return (0);
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}
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static void
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journal_label(struct gctl_req *req)
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{
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struct g_journal_metadata md;
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const char *data, *journal, *str;
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u_char sector[512];
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intmax_t jsize, msize, ssize;
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int error, force, i, nargs, checksum, hardcode;
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nargs = gctl_get_int(req, "nargs");
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strlcpy(md.md_magic, G_JOURNAL_MAGIC, sizeof(md.md_magic));
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md.md_version = G_JOURNAL_VERSION;
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md.md_id = arc4random();
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md.md_joffset = 0;
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md.md_jid = 0;
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md.md_flags = GJ_FLAG_CLEAN;
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checksum = gctl_get_int(req, "checksum");
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if (checksum)
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md.md_flags |= GJ_FLAG_CHECKSUM;
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force = gctl_get_int(req, "force");
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hardcode = gctl_get_int(req, "hardcode");
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if (nargs != 1 && 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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/* Verify the given providers. */
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for (i = 0; i < nargs; i++) {
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str = gctl_get_ascii(req, "arg%d", i);
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if (g_get_mediasize(str) == 0) {
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gctl_error(req, "Invalid provider %s.", str);
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return;
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}
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}
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data = gctl_get_ascii(req, "arg0");
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jsize = gctl_get_intmax(req, "jsize");
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journal = NULL;
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switch (nargs) {
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case 1:
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if (!force && g_journal_fs_exists(data)) {
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gctl_error(req, "File system exists on %s and this "
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"operation is going to destroy it. Use -f if you "
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"really want to do it.", data);
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return;
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}
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journal = data;
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if (jsize == -1) {
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/*
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* No journal size specified. 1GB should be safe
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* default.
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*/
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jsize = 1073741824ULL;
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}
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msize = g_get_mediasize(data);
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ssize = g_get_sectorsize(data);
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if (jsize + ssize >= msize) {
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gctl_error(req, "Provider too small for journalling. "
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"You can try smaller jsize (default is %jd).",
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jsize);
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return;
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}
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md.md_jstart = msize - ssize - jsize;
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md.md_jend = msize - ssize;
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break;
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case 2:
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if (!force && g_journal_fs_using_last_sector(data)) {
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gctl_error(req, "File system on %s is using the last "
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"sector and this operation is going to overwrite "
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"it. Use -f if you really want to do it.", data);
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return;
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}
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journal = gctl_get_ascii(req, "arg1");
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if (jsize != -1) {
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gctl_error(req, "jsize argument is valid only for "
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"all-in-one configuration.");
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return;
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}
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msize = g_get_mediasize(journal);
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ssize = g_get_sectorsize(journal);
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md.md_jstart = 0;
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md.md_jend = msize - ssize;
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break;
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}
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if (g_get_sectorsize(data) != g_get_sectorsize(journal)) {
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gctl_error(req, "Not equal sector sizes.");
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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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for (i = 0; i < nargs; i++) {
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str = gctl_get_ascii(req, "arg%d", i);
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error = g_metadata_clear(str, NULL);
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if (error != 0) {
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gctl_error(req, "Cannot clear metadata on %s: %s.", str,
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strerror(error));
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return;
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}
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}
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/*
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* Ok, store metadata.
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*/
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for (i = 0; i < nargs; i++) {
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switch (i) {
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case 0:
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str = data;
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md.md_type = GJ_TYPE_DATA;
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if (nargs == 1)
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md.md_type |= GJ_TYPE_JOURNAL;
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break;
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case 1:
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str = journal;
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md.md_type = GJ_TYPE_JOURNAL;
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break;
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}
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md.md_provsize = g_get_mediasize(str);
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assert(md.md_provsize != 0);
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if (!hardcode)
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bzero(md.md_provider, sizeof(md.md_provider));
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else {
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if (strncmp(str, _PATH_DEV, strlen(_PATH_DEV)) == 0)
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str += strlen(_PATH_DEV);
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strlcpy(md.md_provider, str, sizeof(md.md_provider));
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}
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journal_metadata_encode(&md, sector);
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error = g_metadata_store(str, sector, sizeof(sector));
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if (error != 0) {
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fprintf(stderr, "Cannot store metadata on %s: %s.\n",
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str, 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 value stored on %s.\n", str);
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}
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}
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static void
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journal_clear(struct gctl_req *req)
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{
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const char *name;
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int error, i, nargs;
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nargs = gctl_get_int(req, "nargs");
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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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name = gctl_get_ascii(req, "arg%d", i);
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error = g_metadata_clear(name, G_JOURNAL_MAGIC);
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if (error != 0) {
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fprintf(stderr, "Cannot 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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journal_dump(struct gctl_req *req)
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{
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struct g_journal_metadata md, tmpmd;
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const char *name;
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int error, i, nargs;
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nargs = gctl_get_int(req, "nargs");
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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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name = gctl_get_ascii(req, "arg%d", i);
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error = g_metadata_read(name, (u_char *)&tmpmd, sizeof(tmpmd),
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G_JOURNAL_MAGIC);
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if (error != 0) {
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fprintf(stderr, "Cannot 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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if (journal_metadata_decode((u_char *)&tmpmd, &md) != 0) {
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fprintf(stderr, "MD5 hash mismatch for %s, skipping.\n",
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name);
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gctl_error(req, "Not fully done.");
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continue;
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}
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printf("Metadata on %s:\n", name);
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journal_metadata_dump(&md);
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printf("\n");
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}
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}
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33
sbin/geom/class/journal/geom_journal.h
Normal file
33
sbin/geom/class/journal/geom_journal.h
Normal file
@ -0,0 +1,33 @@
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/*-
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* Copyright (c) 2006 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
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
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* $FreeBSD$
|
||||
*/
|
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#ifndef _GEOM_JOURNAL_H_
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#define _GEOM_JOURNAL_H_
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int g_journal_ufs_exists(const char *prov);
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int g_journal_ufs_using_last_sector(const char *prov);
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#endif /* !_GEOM_JOURNAL_H_ */
|
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78
sbin/geom/class/journal/geom_journal_ufs.c
Normal file
78
sbin/geom/class/journal/geom_journal_ufs.c
Normal file
@ -0,0 +1,78 @@
|
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/*-
|
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* Copyright (c) 2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/disklabel.h>
|
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#include <sys/mount.h>
|
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|
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#include <ufs/ufs/dinode.h>
|
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#include <ufs/ffs/fs.h>
|
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|
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#include <libufs.h>
|
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#include <libgeom.h>
|
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#include <core/geom.h>
|
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#include <misc/subr.h>
|
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|
||||
#include "geom_journal.h"
|
||||
|
||||
static struct fs *
|
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read_superblock(const char *prov)
|
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{
|
||||
static struct uufsd disk;
|
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struct fs *fs;
|
||||
|
||||
if (ufs_disk_fillout(&disk, prov) == -1)
|
||||
return (NULL);
|
||||
fs = &disk.d_fs;
|
||||
ufs_disk_close(&disk);
|
||||
return (fs);
|
||||
}
|
||||
|
||||
int
|
||||
g_journal_ufs_exists(const char *prov)
|
||||
{
|
||||
|
||||
return (read_superblock(prov) != NULL);
|
||||
}
|
||||
|
||||
int
|
||||
g_journal_ufs_using_last_sector(const char *prov)
|
||||
{
|
||||
struct fs *fs;
|
||||
off_t psize, fssize;
|
||||
|
||||
fs = read_superblock(prov);
|
||||
if (fs == NULL)
|
||||
return (0);
|
||||
/* Provider size in 512 bytes blocks. */
|
||||
psize = g_get_mediasize(prov) / DEV_BSIZE;
|
||||
/* File system size in 512 bytes blocks. */
|
||||
fssize = fsbtodb(fs, dbtofsb(fs, psize));
|
||||
return (psize == fssize);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user