1992 lines
51 KiB
C
1992 lines
51 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2004-2019 Pawel Jakub Dawidek <pawel@dawidek.net>
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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 <sys/mman.h>
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#include <sys/sysctl.h>
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#include <sys/resource.h>
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#include <opencrypto/cryptodev.h>
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#include <assert.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <libgeom.h>
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#include <paths.h>
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#include <readpassphrase.h>
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#include <stdbool.h>
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#include <stdint.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 <unistd.h>
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#include <geom/eli/g_eli.h>
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#include <geom/eli/pkcs5v2.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_ELI_VERSION;
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#define GELI_BACKUP_DIR "/var/backups/"
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#define GELI_ENC_ALGO "aes"
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#define BUFSIZE 1024
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/*
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* Passphrase cached when attaching multiple providers, in order to be more
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* user-friendly if they are using the same passphrase.
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*/
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static char cached_passphrase[BUFSIZE] = "";
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static void eli_main(struct gctl_req *req, unsigned flags);
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static void eli_init(struct gctl_req *req);
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static void eli_attach(struct gctl_req *req);
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static void eli_configure(struct gctl_req *req);
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static void eli_setkey(struct gctl_req *req);
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static void eli_delkey(struct gctl_req *req);
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static void eli_resume(struct gctl_req *req);
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static void eli_kill(struct gctl_req *req);
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static void eli_backup(struct gctl_req *req);
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static void eli_restore(struct gctl_req *req);
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static void eli_resize(struct gctl_req *req);
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static void eli_version(struct gctl_req *req);
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static void eli_clear(struct gctl_req *req);
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static void eli_dump(struct gctl_req *req);
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static int eli_backup_create(struct gctl_req *req, const char *prov,
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const char *file);
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/*
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* Available commands:
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*
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* init [-bdgPRTv] [-a aalgo] [-B backupfile] [-e ealgo] [-i iterations] [-l keylen] [-J newpassfile] [-K newkeyfile] [-s sectorsize] [-V version] prov ...
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* label - alias for 'init'
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* attach [-Cdprv] [-n keyno] [-j passfile] [-k keyfile] prov ...
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* detach [-fl] prov ...
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* stop - alias for 'detach'
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* onetime [-dRT] [-a aalgo] [-e ealgo] [-l keylen] prov
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* configure [-bBgGrRtT] prov ...
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* setkey [-pPv] [-n keyno] [-j passfile] [-J newpassfile] [-k keyfile] [-K newkeyfile] prov
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* delkey [-afv] [-n keyno] prov
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* suspend [-v] -a | prov ...
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* resume [-pv] [-j passfile] [-k keyfile] prov
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* kill [-av] [prov ...]
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* backup [-v] prov file
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* restore [-fv] file prov
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* resize [-v] -s oldsize prov
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* version [prov ...]
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* clear [-v] prov ...
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* dump [-v] prov ...
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*/
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struct g_command class_commands[] = {
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{ "init", G_FLAG_VERBOSE, eli_main,
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{
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{ 'a', "aalgo", "", G_TYPE_STRING },
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{ 'b', "boot", NULL, G_TYPE_BOOL },
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{ 'B', "backupfile", "", G_TYPE_STRING },
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{ 'd', "displaypass", NULL, G_TYPE_BOOL },
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{ 'e', "ealgo", "", G_TYPE_STRING },
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{ 'g', "geliboot", NULL, G_TYPE_BOOL },
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{ 'i', "iterations", "-1", G_TYPE_NUMBER },
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{ 'J', "newpassfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI },
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{ 'K', "newkeyfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI },
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{ 'l', "keylen", "0", G_TYPE_NUMBER },
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{ 'P', "nonewpassphrase", NULL, G_TYPE_BOOL },
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{ 'R', "noautoresize", NULL, G_TYPE_BOOL },
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{ 's', "sectorsize", "0", G_TYPE_NUMBER },
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{ 'T', "notrim", NULL, G_TYPE_BOOL },
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{ 'V', "mdversion", "-1", G_TYPE_NUMBER },
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G_OPT_SENTINEL
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},
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"[-bdgPRTv] [-a aalgo] [-B backupfile] [-e ealgo] [-i iterations] [-l keylen] [-J newpassfile] [-K newkeyfile] [-s sectorsize] [-V version] prov ..."
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},
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{ "label", G_FLAG_VERBOSE, eli_main,
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{
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{ 'a', "aalgo", "", G_TYPE_STRING },
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{ 'b', "boot", NULL, G_TYPE_BOOL },
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{ 'B', "backupfile", "", G_TYPE_STRING },
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{ 'd', "displaypass", NULL, G_TYPE_BOOL },
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{ 'e', "ealgo", "", G_TYPE_STRING },
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{ 'g', "geliboot", NULL, G_TYPE_BOOL },
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{ 'i', "iterations", "-1", G_TYPE_NUMBER },
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{ 'J', "newpassfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI },
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{ 'K', "newkeyfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI },
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{ 'l', "keylen", "0", G_TYPE_NUMBER },
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{ 'P', "nonewpassphrase", NULL, G_TYPE_BOOL },
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{ 'R', "noautoresize", NULL, G_TYPE_BOOL },
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{ 's', "sectorsize", "0", G_TYPE_NUMBER },
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{ 'T', "notrim", NULL, G_TYPE_BOOL },
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{ 'V', "mdversion", "-1", G_TYPE_NUMBER },
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G_OPT_SENTINEL
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},
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"- an alias for 'init'"
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},
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{ "attach", G_FLAG_VERBOSE | G_FLAG_LOADKLD, eli_main,
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{
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{ 'C', "dryrun", NULL, G_TYPE_BOOL },
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{ 'd', "detach", NULL, G_TYPE_BOOL },
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{ 'j', "passfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI },
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{ 'k', "keyfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI },
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{ 'n', "keyno", "-1", G_TYPE_NUMBER },
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{ 'p', "nopassphrase", NULL, G_TYPE_BOOL },
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{ 'r', "readonly", NULL, G_TYPE_BOOL },
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G_OPT_SENTINEL
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},
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"[-Cdprv] [-n keyno] [-j passfile] [-k keyfile] prov ..."
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},
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{ "detach", 0, NULL,
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{
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{ 'f', "force", NULL, G_TYPE_BOOL },
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{ 'l', "last", NULL, G_TYPE_BOOL },
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G_OPT_SENTINEL
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},
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"[-fl] prov ..."
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},
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{ "stop", 0, NULL,
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{
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{ 'f', "force", NULL, G_TYPE_BOOL },
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{ 'l', "last", NULL, G_TYPE_BOOL },
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G_OPT_SENTINEL
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},
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"- an alias for 'detach'"
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},
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{ "onetime", G_FLAG_VERBOSE | G_FLAG_LOADKLD, NULL,
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{
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{ 'a', "aalgo", "", G_TYPE_STRING },
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{ 'd', "detach", NULL, G_TYPE_BOOL },
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{ 'e', "ealgo", GELI_ENC_ALGO, G_TYPE_STRING },
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{ 'l', "keylen", "0", G_TYPE_NUMBER },
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{ 'R', "noautoresize", NULL, G_TYPE_BOOL },
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{ 's', "sectorsize", "0", G_TYPE_NUMBER },
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{ 'T', "notrim", NULL, G_TYPE_BOOL },
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G_OPT_SENTINEL
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},
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"[-dRT] [-a aalgo] [-e ealgo] [-l keylen] [-s sectorsize] prov"
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},
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{ "configure", G_FLAG_VERBOSE, eli_main,
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{
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{ 'b', "boot", NULL, G_TYPE_BOOL },
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{ 'B', "noboot", NULL, G_TYPE_BOOL },
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{ 'd', "displaypass", NULL, G_TYPE_BOOL },
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{ 'D', "nodisplaypass", NULL, G_TYPE_BOOL },
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{ 'g', "geliboot", NULL, G_TYPE_BOOL },
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{ 'G', "nogeliboot", NULL, G_TYPE_BOOL },
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{ 'r', "autoresize", NULL, G_TYPE_BOOL },
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{ 'R', "noautoresize", NULL, G_TYPE_BOOL },
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{ 't', "trim", NULL, G_TYPE_BOOL },
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{ 'T', "notrim", NULL, G_TYPE_BOOL },
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G_OPT_SENTINEL
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},
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"[-bBdDgGrRtT] prov ..."
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},
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{ "setkey", G_FLAG_VERBOSE, eli_main,
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{
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{ 'i', "iterations", "-1", G_TYPE_NUMBER },
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{ 'j', "passfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI },
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{ 'J', "newpassfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI },
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{ 'k', "keyfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI },
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{ 'K', "newkeyfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI },
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{ 'n', "keyno", "-1", G_TYPE_NUMBER },
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{ 'p', "nopassphrase", NULL, G_TYPE_BOOL },
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{ 'P', "nonewpassphrase", NULL, G_TYPE_BOOL },
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G_OPT_SENTINEL
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},
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"[-pPv] [-n keyno] [-i iterations] [-j passfile] [-J newpassfile] [-k keyfile] [-K newkeyfile] prov"
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},
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{ "delkey", G_FLAG_VERBOSE, eli_main,
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{
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{ 'a', "all", NULL, G_TYPE_BOOL },
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{ 'f', "force", NULL, G_TYPE_BOOL },
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{ 'n', "keyno", "-1", G_TYPE_NUMBER },
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G_OPT_SENTINEL
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},
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"[-afv] [-n keyno] prov"
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},
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{ "suspend", G_FLAG_VERBOSE, NULL,
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{
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{ 'a', "all", NULL, G_TYPE_BOOL },
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G_OPT_SENTINEL
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},
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"[-v] -a | prov ..."
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},
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{ "resume", G_FLAG_VERBOSE, eli_main,
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{
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{ 'j', "passfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI },
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{ 'k', "keyfile", G_VAL_OPTIONAL, G_TYPE_STRING | G_TYPE_MULTI },
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{ 'p', "nopassphrase", NULL, G_TYPE_BOOL },
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G_OPT_SENTINEL
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},
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"[-pv] [-j passfile] [-k keyfile] prov"
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},
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{ "kill", G_FLAG_VERBOSE, eli_main,
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{
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{ 'a', "all", NULL, G_TYPE_BOOL },
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G_OPT_SENTINEL
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},
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"[-av] [prov ...]"
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},
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{ "backup", G_FLAG_VERBOSE, eli_main, G_NULL_OPTS,
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"[-v] prov file"
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},
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{ "restore", G_FLAG_VERBOSE, eli_main,
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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] file prov"
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},
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{ "resize", G_FLAG_VERBOSE, eli_main,
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{
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{ 's', "oldsize", NULL, G_TYPE_NUMBER },
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G_OPT_SENTINEL
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},
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"[-v] -s oldsize prov"
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},
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{ "version", G_FLAG_LOADKLD, eli_main, G_NULL_OPTS,
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"[prov ...]"
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},
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{ "clear", G_FLAG_VERBOSE, eli_main, G_NULL_OPTS,
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"[-v] prov ..."
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},
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{ "dump", G_FLAG_VERBOSE, eli_main, G_NULL_OPTS,
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"[-v] prov ..."
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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 int
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eli_protect(struct gctl_req *req)
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{
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struct rlimit rl;
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/* Disable core dumps. */
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rl.rlim_cur = 0;
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rl.rlim_max = 0;
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if (setrlimit(RLIMIT_CORE, &rl) == -1) {
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gctl_error(req, "Cannot disable core dumps: %s.",
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strerror(errno));
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return (-1);
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}
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/* Disable swapping. */
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if (mlockall(MCL_FUTURE) == -1) {
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gctl_error(req, "Cannot lock memory: %s.", strerror(errno));
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return (-1);
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}
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return (0);
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}
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static void
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eli_main(struct gctl_req *req, unsigned int flags)
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{
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const char *name;
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if (eli_protect(req) == -1)
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return;
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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, "init") == 0 || strcmp(name, "label") == 0)
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eli_init(req);
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else if (strcmp(name, "attach") == 0)
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eli_attach(req);
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else if (strcmp(name, "configure") == 0)
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eli_configure(req);
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else if (strcmp(name, "setkey") == 0)
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eli_setkey(req);
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else if (strcmp(name, "delkey") == 0)
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eli_delkey(req);
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else if (strcmp(name, "resume") == 0)
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eli_resume(req);
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else if (strcmp(name, "kill") == 0)
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eli_kill(req);
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else if (strcmp(name, "backup") == 0)
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eli_backup(req);
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else if (strcmp(name, "restore") == 0)
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eli_restore(req);
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else if (strcmp(name, "resize") == 0)
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eli_resize(req);
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else if (strcmp(name, "version") == 0)
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eli_version(req);
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else if (strcmp(name, "dump") == 0)
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eli_dump(req);
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else if (strcmp(name, "clear") == 0)
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eli_clear(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 bool
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eli_is_attached(const char *prov)
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{
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char name[MAXPATHLEN];
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/*
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* Not the best way to do it, but the easiest.
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* We try to open provider and check if it is a GEOM provider
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* by asking about its sectorsize.
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*/
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snprintf(name, sizeof(name), "%s%s", prov, G_ELI_SUFFIX);
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return (g_get_sectorsize(name) > 0);
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}
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static int
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eli_genkey_files(struct gctl_req *req, bool new, const char *type,
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struct hmac_ctx *ctxp, char *passbuf, size_t passbufsize)
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{
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char *p, buf[BUFSIZE], argname[16];
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const char *file;
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int error, fd, i;
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ssize_t done;
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assert((strcmp(type, "keyfile") == 0 && ctxp != NULL &&
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passbuf == NULL && passbufsize == 0) ||
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(strcmp(type, "passfile") == 0 && ctxp == NULL &&
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passbuf != NULL && passbufsize > 0));
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assert(strcmp(type, "keyfile") == 0 || passbuf[0] == '\0');
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for (i = 0; ; i++) {
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snprintf(argname, sizeof(argname), "%s%s%d",
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new ? "new" : "", type, i);
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/* No more {key,pass}files? */
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if (!gctl_has_param(req, argname))
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return (i);
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file = gctl_get_ascii(req, "%s", argname);
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assert(file != NULL);
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if (strcmp(file, "-") == 0)
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fd = STDIN_FILENO;
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else {
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fd = open(file, O_RDONLY);
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if (fd == -1) {
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gctl_error(req, "Cannot open %s %s: %s.",
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type, file, strerror(errno));
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return (-1);
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}
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}
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if (strcmp(type, "keyfile") == 0) {
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while ((done = read(fd, buf, sizeof(buf))) > 0)
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g_eli_crypto_hmac_update(ctxp, buf, done);
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} else /* if (strcmp(type, "passfile") == 0) */ {
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assert(strcmp(type, "passfile") == 0);
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while ((done = read(fd, buf, sizeof(buf) - 1)) > 0) {
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buf[done] = '\0';
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p = strchr(buf, '\n');
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if (p != NULL) {
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*p = '\0';
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done = p - buf;
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}
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if (strlcat(passbuf, buf, passbufsize) >=
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passbufsize) {
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gctl_error(req,
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"Passphrase in %s too long.", file);
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explicit_bzero(buf, sizeof(buf));
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return (-1);
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}
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if (p != NULL)
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break;
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}
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}
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error = errno;
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if (strcmp(file, "-") != 0)
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close(fd);
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explicit_bzero(buf, sizeof(buf));
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if (done == -1) {
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gctl_error(req, "Cannot read %s %s: %s.",
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type, file, strerror(error));
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return (-1);
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}
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}
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/* NOTREACHED */
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}
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static int
|
|
eli_genkey_passphrase_prompt(struct gctl_req *req, bool new, char *passbuf,
|
|
size_t passbufsize)
|
|
{
|
|
char *p;
|
|
|
|
for (;;) {
|
|
p = readpassphrase(
|
|
new ? "Enter new passphrase: " : "Enter passphrase: ",
|
|
passbuf, passbufsize, RPP_ECHO_OFF | RPP_REQUIRE_TTY);
|
|
if (p == NULL) {
|
|
explicit_bzero(passbuf, passbufsize);
|
|
gctl_error(req, "Cannot read passphrase: %s.",
|
|
strerror(errno));
|
|
return (-1);
|
|
}
|
|
|
|
if (new) {
|
|
char tmpbuf[BUFSIZE];
|
|
|
|
p = readpassphrase("Reenter new passphrase: ",
|
|
tmpbuf, sizeof(tmpbuf),
|
|
RPP_ECHO_OFF | RPP_REQUIRE_TTY);
|
|
if (p == NULL) {
|
|
explicit_bzero(passbuf, passbufsize);
|
|
gctl_error(req,
|
|
"Cannot read passphrase: %s.",
|
|
strerror(errno));
|
|
return (-1);
|
|
}
|
|
|
|
if (strcmp(passbuf, tmpbuf) != 0) {
|
|
explicit_bzero(passbuf, passbufsize);
|
|
fprintf(stderr, "They didn't match.\n");
|
|
continue;
|
|
}
|
|
explicit_bzero(tmpbuf, sizeof(tmpbuf));
|
|
}
|
|
return (0);
|
|
}
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
static int
|
|
eli_genkey_passphrase(struct gctl_req *req, struct g_eli_metadata *md, bool new,
|
|
struct hmac_ctx *ctxp)
|
|
{
|
|
char passbuf[BUFSIZE];
|
|
bool nopassphrase;
|
|
int nfiles;
|
|
|
|
/*
|
|
* Return error if the 'do not use passphrase' flag was given but a
|
|
* passfile was provided.
|
|
*/
|
|
nopassphrase =
|
|
gctl_get_int(req, new ? "nonewpassphrase" : "nopassphrase");
|
|
if (nopassphrase) {
|
|
if (gctl_has_param(req, new ? "newpassfile0" : "passfile0")) {
|
|
gctl_error(req,
|
|
"Options -%c and -%c are mutually exclusive.",
|
|
new ? 'J' : 'j', new ? 'P' : 'p');
|
|
return (-1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Return error if using a provider which does not require a passphrase
|
|
* but the 'do not use passphrase' flag was not given.
|
|
*/
|
|
if (!new && md->md_iterations == -1) {
|
|
gctl_error(req, "Missing -p flag.");
|
|
return (-1);
|
|
}
|
|
passbuf[0] = '\0';
|
|
|
|
/* Use cached passphrase if defined. */
|
|
if (strlen(cached_passphrase) > 0) {
|
|
strlcpy(passbuf, cached_passphrase, sizeof(passbuf));
|
|
} else {
|
|
nfiles = eli_genkey_files(req, new, "passfile", NULL, passbuf,
|
|
sizeof(passbuf));
|
|
if (nfiles == -1) {
|
|
return (-1);
|
|
} else if (nfiles == 0) {
|
|
if (eli_genkey_passphrase_prompt(req, new, passbuf,
|
|
sizeof(passbuf)) == -1) {
|
|
return (-1);
|
|
}
|
|
}
|
|
/* Cache the passphrase for other providers. */
|
|
strlcpy(cached_passphrase, passbuf, sizeof(cached_passphrase));
|
|
}
|
|
/*
|
|
* Field md_iterations equal to -1 means "choose some sane
|
|
* value for me".
|
|
*/
|
|
if (md->md_iterations == -1) {
|
|
assert(new);
|
|
if (verbose)
|
|
printf("Calculating number of iterations...\n");
|
|
md->md_iterations = pkcs5v2_calculate(2000000);
|
|
assert(md->md_iterations > 0);
|
|
if (verbose) {
|
|
printf("Done, using %d iterations.\n",
|
|
md->md_iterations);
|
|
}
|
|
}
|
|
/*
|
|
* If md_iterations is equal to 0, user doesn't want PKCS#5v2.
|
|
*/
|
|
if (md->md_iterations == 0) {
|
|
g_eli_crypto_hmac_update(ctxp, md->md_salt,
|
|
sizeof(md->md_salt));
|
|
g_eli_crypto_hmac_update(ctxp, passbuf, strlen(passbuf));
|
|
} else /* if (md->md_iterations > 0) */ {
|
|
unsigned char dkey[G_ELI_USERKEYLEN];
|
|
|
|
pkcs5v2_genkey(dkey, sizeof(dkey), md->md_salt,
|
|
sizeof(md->md_salt), passbuf, md->md_iterations);
|
|
g_eli_crypto_hmac_update(ctxp, dkey, sizeof(dkey));
|
|
explicit_bzero(dkey, sizeof(dkey));
|
|
}
|
|
explicit_bzero(passbuf, sizeof(passbuf));
|
|
|
|
return (0);
|
|
}
|
|
|
|
static unsigned char *
|
|
eli_genkey(struct gctl_req *req, struct g_eli_metadata *md, unsigned char *key,
|
|
bool new)
|
|
{
|
|
struct hmac_ctx ctx;
|
|
bool nopassphrase;
|
|
int nfiles;
|
|
|
|
nopassphrase =
|
|
gctl_get_int(req, new ? "nonewpassphrase" : "nopassphrase");
|
|
|
|
g_eli_crypto_hmac_init(&ctx, NULL, 0);
|
|
|
|
nfiles = eli_genkey_files(req, new, "keyfile", &ctx, NULL, 0);
|
|
if (nfiles == -1)
|
|
return (NULL);
|
|
else if (nfiles == 0 && nopassphrase) {
|
|
gctl_error(req, "No key components given.");
|
|
return (NULL);
|
|
}
|
|
|
|
if (eli_genkey_passphrase(req, md, new, &ctx) == -1)
|
|
return (NULL);
|
|
|
|
g_eli_crypto_hmac_final(&ctx, key, 0);
|
|
|
|
return (key);
|
|
}
|
|
|
|
static int
|
|
eli_metadata_read(struct gctl_req *req, const char *prov,
|
|
struct g_eli_metadata *md)
|
|
{
|
|
unsigned char sector[sizeof(struct g_eli_metadata)];
|
|
int error;
|
|
|
|
if (g_get_sectorsize(prov) == 0) {
|
|
int fd;
|
|
|
|
/* This is a file probably. */
|
|
fd = open(prov, O_RDONLY);
|
|
if (fd == -1) {
|
|
gctl_error(req, "Cannot open %s: %s.", prov,
|
|
strerror(errno));
|
|
return (-1);
|
|
}
|
|
if (read(fd, sector, sizeof(sector)) != sizeof(sector)) {
|
|
gctl_error(req, "Cannot read metadata from %s: %s.",
|
|
prov, strerror(errno));
|
|
close(fd);
|
|
return (-1);
|
|
}
|
|
close(fd);
|
|
} else {
|
|
/* This is a GEOM provider. */
|
|
error = g_metadata_read(prov, sector, sizeof(sector),
|
|
G_ELI_MAGIC);
|
|
if (error != 0) {
|
|
gctl_error(req, "Cannot read metadata from %s: %s.",
|
|
prov, strerror(error));
|
|
return (-1);
|
|
}
|
|
}
|
|
error = eli_metadata_decode(sector, md);
|
|
switch (error) {
|
|
case 0:
|
|
break;
|
|
case EOPNOTSUPP:
|
|
gctl_error(req,
|
|
"Provider's %s metadata version %u is too new.\n"
|
|
"geli: The highest supported version is %u.",
|
|
prov, (unsigned int)md->md_version, G_ELI_VERSION);
|
|
return (-1);
|
|
case EINVAL:
|
|
gctl_error(req, "Inconsistent provider's %s metadata.", prov);
|
|
return (-1);
|
|
default:
|
|
gctl_error(req,
|
|
"Unexpected error while decoding provider's %s metadata: %s.",
|
|
prov, strerror(error));
|
|
return (-1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
eli_metadata_store(struct gctl_req *req, const char *prov,
|
|
struct g_eli_metadata *md)
|
|
{
|
|
unsigned char sector[sizeof(struct g_eli_metadata)];
|
|
int error;
|
|
|
|
eli_metadata_encode(md, sector);
|
|
if (g_get_sectorsize(prov) == 0) {
|
|
int fd;
|
|
|
|
/* This is a file probably. */
|
|
fd = open(prov, O_WRONLY | O_TRUNC);
|
|
if (fd == -1) {
|
|
gctl_error(req, "Cannot open %s: %s.", prov,
|
|
strerror(errno));
|
|
explicit_bzero(sector, sizeof(sector));
|
|
return (-1);
|
|
}
|
|
if (write(fd, sector, sizeof(sector)) != sizeof(sector)) {
|
|
gctl_error(req, "Cannot write metadata to %s: %s.",
|
|
prov, strerror(errno));
|
|
explicit_bzero(sector, sizeof(sector));
|
|
close(fd);
|
|
return (-1);
|
|
}
|
|
close(fd);
|
|
} else {
|
|
/* This is a GEOM provider. */
|
|
error = g_metadata_store(prov, sector, sizeof(sector));
|
|
if (error != 0) {
|
|
gctl_error(req, "Cannot write metadata to %s: %s.",
|
|
prov, strerror(errno));
|
|
explicit_bzero(sector, sizeof(sector));
|
|
return (-1);
|
|
}
|
|
}
|
|
explicit_bzero(sector, sizeof(sector));
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
eli_init(struct gctl_req *req)
|
|
{
|
|
struct g_eli_metadata md;
|
|
struct gctl_req *r;
|
|
unsigned char sector[sizeof(struct g_eli_metadata)] __aligned(4);
|
|
unsigned char key[G_ELI_USERKEYLEN];
|
|
char backfile[MAXPATHLEN];
|
|
const char *str, *prov;
|
|
unsigned int secsize, version;
|
|
off_t mediasize;
|
|
intmax_t val;
|
|
int error, i, nargs, nparams, param;
|
|
const int one = 1;
|
|
|
|
nargs = gctl_get_int(req, "nargs");
|
|
if (nargs <= 0) {
|
|
gctl_error(req, "Too few arguments.");
|
|
return;
|
|
}
|
|
|
|
/* Start generating metadata for provider(s) being initialized. */
|
|
explicit_bzero(&md, sizeof(md));
|
|
strlcpy(md.md_magic, G_ELI_MAGIC, sizeof(md.md_magic));
|
|
val = gctl_get_intmax(req, "mdversion");
|
|
if (val == -1) {
|
|
version = G_ELI_VERSION;
|
|
} else if (val < 0 || val > G_ELI_VERSION) {
|
|
gctl_error(req,
|
|
"Invalid version specified should be between %u and %u.",
|
|
G_ELI_VERSION_00, G_ELI_VERSION);
|
|
return;
|
|
} else {
|
|
version = val;
|
|
}
|
|
md.md_version = version;
|
|
md.md_flags = G_ELI_FLAG_AUTORESIZE;
|
|
if (gctl_get_int(req, "boot"))
|
|
md.md_flags |= G_ELI_FLAG_BOOT;
|
|
if (gctl_get_int(req, "geliboot"))
|
|
md.md_flags |= G_ELI_FLAG_GELIBOOT;
|
|
if (gctl_get_int(req, "displaypass"))
|
|
md.md_flags |= G_ELI_FLAG_GELIDISPLAYPASS;
|
|
if (gctl_get_int(req, "notrim"))
|
|
md.md_flags |= G_ELI_FLAG_NODELETE;
|
|
if (gctl_get_int(req, "noautoresize"))
|
|
md.md_flags &= ~G_ELI_FLAG_AUTORESIZE;
|
|
md.md_ealgo = CRYPTO_ALGORITHM_MIN - 1;
|
|
str = gctl_get_ascii(req, "aalgo");
|
|
if (*str != '\0') {
|
|
if (version < G_ELI_VERSION_01) {
|
|
gctl_error(req,
|
|
"Data authentication is supported starting from version %u.",
|
|
G_ELI_VERSION_01);
|
|
return;
|
|
}
|
|
md.md_aalgo = g_eli_str2aalgo(str);
|
|
if (md.md_aalgo >= CRYPTO_ALGORITHM_MIN &&
|
|
md.md_aalgo <= CRYPTO_ALGORITHM_MAX) {
|
|
md.md_flags |= G_ELI_FLAG_AUTH;
|
|
} else {
|
|
/*
|
|
* For backward compatibility, check if the -a option
|
|
* was used to provide encryption algorithm.
|
|
*/
|
|
md.md_ealgo = g_eli_str2ealgo(str);
|
|
if (md.md_ealgo < CRYPTO_ALGORITHM_MIN ||
|
|
md.md_ealgo > CRYPTO_ALGORITHM_MAX) {
|
|
gctl_error(req,
|
|
"Invalid authentication algorithm.");
|
|
return;
|
|
} else {
|
|
fprintf(stderr, "warning: The -e option, not "
|
|
"the -a option is now used to specify "
|
|
"encryption algorithm to use.\n");
|
|
}
|
|
}
|
|
}
|
|
if (md.md_ealgo < CRYPTO_ALGORITHM_MIN ||
|
|
md.md_ealgo > CRYPTO_ALGORITHM_MAX) {
|
|
str = gctl_get_ascii(req, "ealgo");
|
|
if (*str == '\0') {
|
|
if (version < G_ELI_VERSION_05)
|
|
str = "aes-cbc";
|
|
else
|
|
str = GELI_ENC_ALGO;
|
|
}
|
|
md.md_ealgo = g_eli_str2ealgo(str);
|
|
if (md.md_ealgo < CRYPTO_ALGORITHM_MIN ||
|
|
md.md_ealgo > CRYPTO_ALGORITHM_MAX) {
|
|
gctl_error(req, "Invalid encryption algorithm.");
|
|
return;
|
|
}
|
|
if (md.md_ealgo == CRYPTO_CAMELLIA_CBC &&
|
|
version < G_ELI_VERSION_04) {
|
|
gctl_error(req,
|
|
"Camellia-CBC algorithm is supported starting from version %u.",
|
|
G_ELI_VERSION_04);
|
|
return;
|
|
}
|
|
if (md.md_ealgo == CRYPTO_AES_XTS &&
|
|
version < G_ELI_VERSION_05) {
|
|
gctl_error(req,
|
|
"AES-XTS algorithm is supported starting from version %u.",
|
|
G_ELI_VERSION_05);
|
|
return;
|
|
}
|
|
}
|
|
if (md.md_flags & G_ELI_FLAG_AUTH) {
|
|
switch (md.md_aalgo) {
|
|
case CRYPTO_MD5_HMAC:
|
|
gctl_error(req,
|
|
"The %s authentication algorithm is deprecated.",
|
|
g_eli_algo2str(md.md_aalgo));
|
|
return;
|
|
}
|
|
}
|
|
switch (md.md_ealgo) {
|
|
case CRYPTO_3DES_CBC:
|
|
case CRYPTO_BLF_CBC:
|
|
gctl_error(req, "The %s encryption algorithm is deprecated.",
|
|
g_eli_algo2str(md.md_ealgo));
|
|
return;
|
|
}
|
|
val = gctl_get_intmax(req, "keylen");
|
|
md.md_keylen = val;
|
|
md.md_keylen = g_eli_keylen(md.md_ealgo, md.md_keylen);
|
|
if (md.md_keylen == 0) {
|
|
gctl_error(req, "Invalid key length.");
|
|
return;
|
|
}
|
|
|
|
val = gctl_get_intmax(req, "iterations");
|
|
if (val != -1) {
|
|
int nonewpassphrase;
|
|
|
|
/*
|
|
* Don't allow to set iterations when there will be no
|
|
* passphrase.
|
|
*/
|
|
nonewpassphrase = gctl_get_int(req, "nonewpassphrase");
|
|
if (nonewpassphrase) {
|
|
gctl_error(req,
|
|
"Options -i and -P are mutually exclusive.");
|
|
return;
|
|
}
|
|
}
|
|
md.md_iterations = val;
|
|
|
|
val = gctl_get_intmax(req, "sectorsize");
|
|
if (val > sysconf(_SC_PAGE_SIZE)) {
|
|
fprintf(stderr,
|
|
"warning: Using sectorsize bigger than the page size!\n");
|
|
}
|
|
|
|
md.md_keys = 0x01;
|
|
|
|
/*
|
|
* Determine number of parameters in the parent geom request before the
|
|
* nargs parameter and list of providers.
|
|
*/
|
|
nparams = req->narg - nargs - 1;
|
|
|
|
/* Create new child request for each provider and issue to kernel */
|
|
for (i = 0; i < nargs; i++) {
|
|
r = gctl_get_handle();
|
|
|
|
/* Copy each parameter from the parent request to the child */
|
|
for (param = 0; param < nparams; param++) {
|
|
gctl_ro_param(r, req->arg[param].name,
|
|
req->arg[param].len, req->arg[param].value);
|
|
}
|
|
|
|
/* Add a single provider to the parameter list of the child */
|
|
gctl_ro_param(r, "nargs", sizeof(one), &one);
|
|
prov = gctl_get_ascii(req, "arg%d", i);
|
|
gctl_ro_param(r, "arg0", -1, prov);
|
|
|
|
mediasize = g_get_mediasize(prov);
|
|
secsize = g_get_sectorsize(prov);
|
|
if (mediasize == 0 || secsize == 0) {
|
|
gctl_error(r, "Cannot get information about %s: %s.",
|
|
prov, strerror(errno));
|
|
goto out;
|
|
}
|
|
|
|
md.md_provsize = mediasize;
|
|
|
|
val = gctl_get_intmax(r, "sectorsize");
|
|
if (val == 0) {
|
|
md.md_sectorsize = secsize;
|
|
} else {
|
|
if (val < 0 || (val % secsize) != 0 || !powerof2(val)) {
|
|
gctl_error(r, "Invalid sector size.");
|
|
goto out;
|
|
}
|
|
md.md_sectorsize = val;
|
|
}
|
|
|
|
/* Use different salt and Master Key for each provider. */
|
|
arc4random_buf(md.md_salt, sizeof(md.md_salt));
|
|
arc4random_buf(md.md_mkeys, sizeof(md.md_mkeys));
|
|
|
|
/* Generate user key. */
|
|
if (eli_genkey(r, &md, key, true) == NULL) {
|
|
/*
|
|
* Error generating key - details added to geom request
|
|
* by eli_genkey().
|
|
*/
|
|
goto out;
|
|
}
|
|
|
|
/* Encrypt the first and the only Master Key. */
|
|
error = g_eli_mkey_encrypt(md.md_ealgo, key, md.md_keylen,
|
|
md.md_mkeys);
|
|
if (error != 0) {
|
|
gctl_error(r, "Cannot encrypt Master Key: %s.",
|
|
strerror(error));
|
|
goto out;
|
|
}
|
|
|
|
/* Convert metadata to on-disk format. */
|
|
eli_metadata_encode(&md, sector);
|
|
|
|
/* Store metadata to disk. */
|
|
error = g_metadata_store(prov, sector, sizeof(sector));
|
|
if (error != 0) {
|
|
gctl_error(r, "Cannot store metadata on %s: %s.", prov,
|
|
strerror(error));
|
|
goto out;
|
|
}
|
|
if (verbose)
|
|
printf("Metadata value stored on %s.\n", prov);
|
|
|
|
/* Backup metadata to a file. */
|
|
const char *p = prov;
|
|
unsigned int j;
|
|
|
|
/*
|
|
* Check if provider string includes the devfs mountpoint
|
|
* (typically /dev/).
|
|
*/
|
|
if (strncmp(p, _PATH_DEV, sizeof(_PATH_DEV) - 1) == 0) {
|
|
/* Skip forward to the device filename only. */
|
|
p += sizeof(_PATH_DEV) - 1;
|
|
}
|
|
|
|
str = gctl_get_ascii(r, "backupfile");
|
|
if (str[0] != '\0') {
|
|
/* Backupfile given by the user, just copy it. */
|
|
strlcpy(backfile, str, sizeof(backfile));
|
|
|
|
/* If multiple providers have been initialized in one
|
|
* command, and the backup filename has been specified
|
|
* as anything other than "none", make the backup
|
|
* filename unique for each provider. */
|
|
if (nargs > 1 && strcmp(backfile, "none") != 0) {
|
|
/*
|
|
* Replace first occurrence of "PROV" with
|
|
* provider name.
|
|
*/
|
|
str = strnstr(backfile, "PROV",
|
|
sizeof(backfile));
|
|
if (str != NULL) {
|
|
char suffix[MAXPATHLEN];
|
|
j = str - backfile;
|
|
strlcpy(suffix, &backfile[j+4],
|
|
sizeof(suffix));
|
|
backfile[j] = '\0';
|
|
strlcat(backfile, p, sizeof(backfile));
|
|
strlcat(backfile, suffix,
|
|
sizeof(backfile));
|
|
} else {
|
|
/*
|
|
* "PROV" not found in backfile, append
|
|
* provider name.
|
|
*/
|
|
strlcat(backfile, "-",
|
|
sizeof(backfile));
|
|
strlcat(backfile, p, sizeof(backfile));
|
|
}
|
|
}
|
|
} else {
|
|
/* Generate filename automatically. */
|
|
snprintf(backfile, sizeof(backfile), "%s%s.eli",
|
|
GELI_BACKUP_DIR, p);
|
|
/* Replace all / with _. */
|
|
for (j = strlen(GELI_BACKUP_DIR); backfile[j] != '\0';
|
|
j++) {
|
|
if (backfile[j] == '/')
|
|
backfile[j] = '_';
|
|
}
|
|
}
|
|
if (strcmp(backfile, "none") != 0 &&
|
|
eli_backup_create(r, prov, backfile) == 0) {
|
|
printf("\nMetadata backup for provider %s can be found "
|
|
"in %s\n", prov, backfile);
|
|
printf("and can be restored with the following "
|
|
"command:\n");
|
|
printf("\n\t# geli restore %s %s\n\n", backfile, prov);
|
|
}
|
|
|
|
out:
|
|
/*
|
|
* Print error for this request, and set parent request error
|
|
* message.
|
|
*/
|
|
if (r->error != NULL && r->error[0] != '\0') {
|
|
warnx("%s", r->error);
|
|
gctl_error(req, "There was an error with at least one "
|
|
"provider.");
|
|
}
|
|
|
|
gctl_free(r);
|
|
|
|
/*
|
|
* Erase sensitive and provider specific data from memory.
|
|
*/
|
|
explicit_bzero(key, sizeof(key));
|
|
explicit_bzero(sector, sizeof(sector));
|
|
explicit_bzero(&md.md_provsize, sizeof(md.md_provsize));
|
|
explicit_bzero(&md.md_sectorsize, sizeof(md.md_sectorsize));
|
|
explicit_bzero(&md.md_salt, sizeof(md.md_salt));
|
|
explicit_bzero(&md.md_mkeys, sizeof(md.md_mkeys));
|
|
}
|
|
|
|
/* Clear the cached metadata, including keys. */
|
|
explicit_bzero(&md, sizeof(md));
|
|
}
|
|
|
|
static void
|
|
eli_attach(struct gctl_req *req)
|
|
{
|
|
struct g_eli_metadata md;
|
|
struct gctl_req *r;
|
|
const char *prov;
|
|
off_t mediasize;
|
|
int i, nargs, nparams, param;
|
|
const int one = 1;
|
|
|
|
nargs = gctl_get_int(req, "nargs");
|
|
if (nargs <= 0) {
|
|
gctl_error(req, "Too few arguments.");
|
|
return;
|
|
}
|
|
|
|
unsigned char key[G_ELI_USERKEYLEN];
|
|
|
|
/*
|
|
* Determine number of parameters in the parent geom request before the
|
|
* nargs parameter and list of providers.
|
|
*/
|
|
nparams = req->narg - nargs - 1;
|
|
|
|
/* Create new child request for each provider and issue to kernel */
|
|
for (i = 0; i < nargs; i++) {
|
|
r = gctl_get_handle();
|
|
|
|
/* Copy each parameter from the parent request to the child */
|
|
for (param = 0; param < nparams; param++) {
|
|
gctl_ro_param(r, req->arg[param].name,
|
|
req->arg[param].len, req->arg[param].value);
|
|
}
|
|
|
|
/* Add a single provider to the parameter list of the child */
|
|
gctl_ro_param(r, "nargs", sizeof(one), &one);
|
|
prov = gctl_get_ascii(req, "arg%d", i);
|
|
gctl_ro_param(r, "arg0", -1, prov);
|
|
|
|
if (eli_metadata_read(r, prov, &md) == -1) {
|
|
/*
|
|
* Error reading metadata - details added to geom
|
|
* request by eli_metadata_read().
|
|
*/
|
|
goto out;
|
|
}
|
|
|
|
mediasize = g_get_mediasize(prov);
|
|
if (md.md_provsize != (uint64_t)mediasize) {
|
|
gctl_error(r, "Provider size mismatch.");
|
|
goto out;
|
|
}
|
|
|
|
if (eli_genkey(r, &md, key, false) == NULL) {
|
|
/*
|
|
* Error generating key - details added to geom request
|
|
* by eli_genkey().
|
|
*/
|
|
goto out;
|
|
}
|
|
|
|
gctl_ro_param(r, "key", sizeof(key), key);
|
|
|
|
if (gctl_issue(r) == NULL) {
|
|
if (verbose)
|
|
printf("Attached to %s.\n", prov);
|
|
}
|
|
|
|
out:
|
|
/*
|
|
* Print error for this request, and set parent request error
|
|
* message.
|
|
*/
|
|
if (r->error != NULL && r->error[0] != '\0') {
|
|
warnx("%s", r->error);
|
|
gctl_error(req, "There was an error with at least one "
|
|
"provider.");
|
|
}
|
|
|
|
gctl_free(r);
|
|
|
|
/* Clear sensitive data from memory. */
|
|
explicit_bzero(key, sizeof(key));
|
|
}
|
|
|
|
/* Clear sensitive data from memory. */
|
|
explicit_bzero(cached_passphrase, sizeof(cached_passphrase));
|
|
}
|
|
|
|
static void
|
|
eli_configure_detached(struct gctl_req *req, const char *prov, int boot,
|
|
int geliboot, int displaypass, int trim, int autoresize)
|
|
{
|
|
struct g_eli_metadata md;
|
|
bool changed = 0;
|
|
|
|
if (eli_metadata_read(req, prov, &md) == -1)
|
|
return;
|
|
|
|
if (boot == 1 && (md.md_flags & G_ELI_FLAG_BOOT)) {
|
|
if (verbose)
|
|
printf("BOOT flag already configured for %s.\n", prov);
|
|
} else if (boot == 0 && !(md.md_flags & G_ELI_FLAG_BOOT)) {
|
|
if (verbose)
|
|
printf("BOOT flag not configured for %s.\n", prov);
|
|
} else if (boot >= 0) {
|
|
if (boot)
|
|
md.md_flags |= G_ELI_FLAG_BOOT;
|
|
else
|
|
md.md_flags &= ~G_ELI_FLAG_BOOT;
|
|
changed = 1;
|
|
}
|
|
|
|
if (geliboot == 1 && (md.md_flags & G_ELI_FLAG_GELIBOOT)) {
|
|
if (verbose)
|
|
printf("GELIBOOT flag already configured for %s.\n", prov);
|
|
} else if (geliboot == 0 && !(md.md_flags & G_ELI_FLAG_GELIBOOT)) {
|
|
if (verbose)
|
|
printf("GELIBOOT flag not configured for %s.\n", prov);
|
|
} else if (geliboot >= 0) {
|
|
if (geliboot)
|
|
md.md_flags |= G_ELI_FLAG_GELIBOOT;
|
|
else
|
|
md.md_flags &= ~G_ELI_FLAG_GELIBOOT;
|
|
changed = 1;
|
|
}
|
|
|
|
if (displaypass == 1 && (md.md_flags & G_ELI_FLAG_GELIDISPLAYPASS)) {
|
|
if (verbose)
|
|
printf("GELIDISPLAYPASS flag already configured for %s.\n", prov);
|
|
} else if (displaypass == 0 &&
|
|
!(md.md_flags & G_ELI_FLAG_GELIDISPLAYPASS)) {
|
|
if (verbose)
|
|
printf("GELIDISPLAYPASS flag not configured for %s.\n", prov);
|
|
} else if (displaypass >= 0) {
|
|
if (displaypass)
|
|
md.md_flags |= G_ELI_FLAG_GELIDISPLAYPASS;
|
|
else
|
|
md.md_flags &= ~G_ELI_FLAG_GELIDISPLAYPASS;
|
|
changed = 1;
|
|
}
|
|
|
|
if (trim == 0 && (md.md_flags & G_ELI_FLAG_NODELETE)) {
|
|
if (verbose)
|
|
printf("TRIM disable flag already configured for %s.\n", prov);
|
|
} else if (trim == 1 && !(md.md_flags & G_ELI_FLAG_NODELETE)) {
|
|
if (verbose)
|
|
printf("TRIM disable flag not configured for %s.\n", prov);
|
|
} else if (trim >= 0) {
|
|
if (trim)
|
|
md.md_flags &= ~G_ELI_FLAG_NODELETE;
|
|
else
|
|
md.md_flags |= G_ELI_FLAG_NODELETE;
|
|
changed = 1;
|
|
}
|
|
|
|
if (autoresize == 1 && (md.md_flags & G_ELI_FLAG_AUTORESIZE)) {
|
|
if (verbose)
|
|
printf("AUTORESIZE flag already configured for %s.\n", prov);
|
|
} else if (autoresize == 0 && !(md.md_flags & G_ELI_FLAG_AUTORESIZE)) {
|
|
if (verbose)
|
|
printf("AUTORESIZE flag not configured for %s.\n", prov);
|
|
} else if (autoresize >= 0) {
|
|
if (autoresize)
|
|
md.md_flags |= G_ELI_FLAG_AUTORESIZE;
|
|
else
|
|
md.md_flags &= ~G_ELI_FLAG_AUTORESIZE;
|
|
changed = 1;
|
|
}
|
|
|
|
if (changed)
|
|
eli_metadata_store(req, prov, &md);
|
|
explicit_bzero(&md, sizeof(md));
|
|
}
|
|
|
|
static void
|
|
eli_configure(struct gctl_req *req)
|
|
{
|
|
const char *prov;
|
|
bool boot, noboot, geliboot, nogeliboot, displaypass, nodisplaypass;
|
|
bool autoresize, noautoresize, trim, notrim;
|
|
int doboot, dogeliboot, dodisplaypass, dotrim, doautoresize;
|
|
int i, nargs;
|
|
|
|
nargs = gctl_get_int(req, "nargs");
|
|
if (nargs == 0) {
|
|
gctl_error(req, "Too few arguments.");
|
|
return;
|
|
}
|
|
|
|
boot = gctl_get_int(req, "boot");
|
|
noboot = gctl_get_int(req, "noboot");
|
|
geliboot = gctl_get_int(req, "geliboot");
|
|
nogeliboot = gctl_get_int(req, "nogeliboot");
|
|
displaypass = gctl_get_int(req, "displaypass");
|
|
nodisplaypass = gctl_get_int(req, "nodisplaypass");
|
|
trim = gctl_get_int(req, "trim");
|
|
notrim = gctl_get_int(req, "notrim");
|
|
autoresize = gctl_get_int(req, "autoresize");
|
|
noautoresize = gctl_get_int(req, "noautoresize");
|
|
|
|
doboot = -1;
|
|
if (boot && noboot) {
|
|
gctl_error(req, "Options -b and -B are mutually exclusive.");
|
|
return;
|
|
}
|
|
if (boot)
|
|
doboot = 1;
|
|
else if (noboot)
|
|
doboot = 0;
|
|
|
|
dogeliboot = -1;
|
|
if (geliboot && nogeliboot) {
|
|
gctl_error(req, "Options -g and -G are mutually exclusive.");
|
|
return;
|
|
}
|
|
if (geliboot)
|
|
dogeliboot = 1;
|
|
else if (nogeliboot)
|
|
dogeliboot = 0;
|
|
|
|
dodisplaypass = -1;
|
|
if (displaypass && nodisplaypass) {
|
|
gctl_error(req, "Options -d and -D are mutually exclusive.");
|
|
return;
|
|
}
|
|
if (displaypass)
|
|
dodisplaypass = 1;
|
|
else if (nodisplaypass)
|
|
dodisplaypass = 0;
|
|
|
|
dotrim = -1;
|
|
if (trim && notrim) {
|
|
gctl_error(req, "Options -t and -T are mutually exclusive.");
|
|
return;
|
|
}
|
|
if (trim)
|
|
dotrim = 1;
|
|
else if (notrim)
|
|
dotrim = 0;
|
|
|
|
doautoresize = -1;
|
|
if (autoresize && noautoresize) {
|
|
gctl_error(req, "Options -r and -R are mutually exclusive.");
|
|
return;
|
|
}
|
|
if (autoresize)
|
|
doautoresize = 1;
|
|
else if (noautoresize)
|
|
doautoresize = 0;
|
|
|
|
if (doboot == -1 && dogeliboot == -1 && dodisplaypass == -1 &&
|
|
dotrim == -1 && doautoresize == -1) {
|
|
gctl_error(req, "No option given.");
|
|
return;
|
|
}
|
|
|
|
/* First attached providers. */
|
|
gctl_issue(req);
|
|
/* Now the rest. */
|
|
for (i = 0; i < nargs; i++) {
|
|
prov = gctl_get_ascii(req, "arg%d", i);
|
|
if (!eli_is_attached(prov)) {
|
|
eli_configure_detached(req, prov, doboot, dogeliboot,
|
|
dodisplaypass, dotrim, doautoresize);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
eli_setkey_attached(struct gctl_req *req, struct g_eli_metadata *md)
|
|
{
|
|
unsigned char key[G_ELI_USERKEYLEN];
|
|
intmax_t val, old = 0;
|
|
int error;
|
|
|
|
val = gctl_get_intmax(req, "iterations");
|
|
/* Check if iterations number should be changed. */
|
|
if (val != -1)
|
|
md->md_iterations = val;
|
|
else
|
|
old = md->md_iterations;
|
|
|
|
/* Generate key for Master Key encryption. */
|
|
if (eli_genkey(req, md, key, true) == NULL) {
|
|
explicit_bzero(key, sizeof(key));
|
|
return;
|
|
}
|
|
/*
|
|
* If number of iterations has changed, but wasn't given as a
|
|
* command-line argument, update the request.
|
|
*/
|
|
if (val == -1 && md->md_iterations != old) {
|
|
error = gctl_change_param(req, "iterations", sizeof(intmax_t),
|
|
&md->md_iterations);
|
|
assert(error == 0);
|
|
}
|
|
|
|
gctl_ro_param(req, "key", sizeof(key), key);
|
|
gctl_issue(req);
|
|
explicit_bzero(key, sizeof(key));
|
|
}
|
|
|
|
static void
|
|
eli_setkey_detached(struct gctl_req *req, const char *prov,
|
|
struct g_eli_metadata *md)
|
|
{
|
|
unsigned char key[G_ELI_USERKEYLEN], mkey[G_ELI_DATAIVKEYLEN];
|
|
unsigned char *mkeydst;
|
|
unsigned int nkey;
|
|
intmax_t val;
|
|
int error;
|
|
|
|
if (md->md_keys == 0) {
|
|
gctl_error(req, "No valid keys on %s.", prov);
|
|
return;
|
|
}
|
|
|
|
/* Generate key for Master Key decryption. */
|
|
if (eli_genkey(req, md, key, false) == NULL) {
|
|
explicit_bzero(key, sizeof(key));
|
|
return;
|
|
}
|
|
|
|
/* Decrypt Master Key. */
|
|
error = g_eli_mkey_decrypt_any(md, key, mkey, &nkey);
|
|
explicit_bzero(key, sizeof(key));
|
|
if (error != 0) {
|
|
explicit_bzero(md, sizeof(*md));
|
|
if (error == -1)
|
|
gctl_error(req, "Wrong key for %s.", prov);
|
|
else /* if (error > 0) */ {
|
|
gctl_error(req, "Cannot decrypt Master Key: %s.",
|
|
strerror(error));
|
|
}
|
|
return;
|
|
}
|
|
if (verbose)
|
|
printf("Decrypted Master Key %u.\n", nkey);
|
|
|
|
val = gctl_get_intmax(req, "keyno");
|
|
if (val != -1)
|
|
nkey = val;
|
|
#if 0
|
|
else
|
|
; /* Use the key number which was found during decryption. */
|
|
#endif
|
|
if (nkey >= G_ELI_MAXMKEYS) {
|
|
gctl_error(req, "Invalid '%s' argument.", "keyno");
|
|
return;
|
|
}
|
|
|
|
val = gctl_get_intmax(req, "iterations");
|
|
/* Check if iterations number should and can be changed. */
|
|
if (val != -1 && md->md_iterations == -1) {
|
|
md->md_iterations = val;
|
|
} else if (val != -1 && val != md->md_iterations) {
|
|
if (bitcount32(md->md_keys) != 1) {
|
|
gctl_error(req, "To be able to use '-i' option, only "
|
|
"one key can be defined.");
|
|
return;
|
|
}
|
|
if (md->md_keys != (1 << nkey)) {
|
|
gctl_error(req, "Only already defined key can be "
|
|
"changed when '-i' option is used.");
|
|
return;
|
|
}
|
|
md->md_iterations = val;
|
|
}
|
|
|
|
mkeydst = md->md_mkeys + nkey * G_ELI_MKEYLEN;
|
|
md->md_keys |= (1 << nkey);
|
|
|
|
bcopy(mkey, mkeydst, sizeof(mkey));
|
|
explicit_bzero(mkey, sizeof(mkey));
|
|
|
|
/* Generate key for Master Key encryption. */
|
|
if (eli_genkey(req, md, key, true) == NULL) {
|
|
explicit_bzero(key, sizeof(key));
|
|
explicit_bzero(md, sizeof(*md));
|
|
return;
|
|
}
|
|
|
|
/* Encrypt the Master-Key with the new key. */
|
|
error = g_eli_mkey_encrypt(md->md_ealgo, key, md->md_keylen, mkeydst);
|
|
explicit_bzero(key, sizeof(key));
|
|
if (error != 0) {
|
|
explicit_bzero(md, sizeof(*md));
|
|
gctl_error(req, "Cannot encrypt Master Key: %s.",
|
|
strerror(error));
|
|
return;
|
|
}
|
|
|
|
/* Store metadata with fresh key. */
|
|
eli_metadata_store(req, prov, md);
|
|
explicit_bzero(md, sizeof(*md));
|
|
}
|
|
|
|
static void
|
|
eli_setkey(struct gctl_req *req)
|
|
{
|
|
struct g_eli_metadata md;
|
|
const char *prov;
|
|
int nargs;
|
|
|
|
nargs = gctl_get_int(req, "nargs");
|
|
if (nargs != 1) {
|
|
gctl_error(req, "Invalid number of arguments.");
|
|
return;
|
|
}
|
|
prov = gctl_get_ascii(req, "arg0");
|
|
|
|
if (eli_metadata_read(req, prov, &md) == -1)
|
|
return;
|
|
|
|
if (eli_is_attached(prov))
|
|
eli_setkey_attached(req, &md);
|
|
else
|
|
eli_setkey_detached(req, prov, &md);
|
|
|
|
if (req->error == NULL || req->error[0] == '\0') {
|
|
printf("Note, that the master key encrypted with old keys "
|
|
"and/or passphrase may still exists in a metadata backup "
|
|
"file.\n");
|
|
}
|
|
}
|
|
|
|
static void
|
|
eli_delkey_attached(struct gctl_req *req, const char *prov __unused)
|
|
{
|
|
|
|
gctl_issue(req);
|
|
}
|
|
|
|
static void
|
|
eli_delkey_detached(struct gctl_req *req, const char *prov)
|
|
{
|
|
struct g_eli_metadata md;
|
|
unsigned char *mkeydst;
|
|
unsigned int nkey;
|
|
intmax_t val;
|
|
bool all, force;
|
|
|
|
if (eli_metadata_read(req, prov, &md) == -1)
|
|
return;
|
|
|
|
all = gctl_get_int(req, "all");
|
|
if (all)
|
|
arc4random_buf(md.md_mkeys, sizeof(md.md_mkeys));
|
|
else {
|
|
force = gctl_get_int(req, "force");
|
|
val = gctl_get_intmax(req, "keyno");
|
|
if (val == -1) {
|
|
gctl_error(req, "Key number has to be specified.");
|
|
return;
|
|
}
|
|
nkey = val;
|
|
if (nkey >= G_ELI_MAXMKEYS) {
|
|
gctl_error(req, "Invalid '%s' argument.", "keyno");
|
|
return;
|
|
}
|
|
if (!(md.md_keys & (1 << nkey)) && !force) {
|
|
gctl_error(req, "Master Key %u is not set.", nkey);
|
|
return;
|
|
}
|
|
md.md_keys &= ~(1 << nkey);
|
|
if (md.md_keys == 0 && !force) {
|
|
gctl_error(req, "This is the last Master Key. Use '-f' "
|
|
"option if you really want to remove it.");
|
|
return;
|
|
}
|
|
mkeydst = md.md_mkeys + nkey * G_ELI_MKEYLEN;
|
|
arc4random_buf(mkeydst, G_ELI_MKEYLEN);
|
|
}
|
|
|
|
eli_metadata_store(req, prov, &md);
|
|
explicit_bzero(&md, sizeof(md));
|
|
}
|
|
|
|
static void
|
|
eli_delkey(struct gctl_req *req)
|
|
{
|
|
const char *prov;
|
|
int nargs;
|
|
|
|
nargs = gctl_get_int(req, "nargs");
|
|
if (nargs != 1) {
|
|
gctl_error(req, "Invalid number of arguments.");
|
|
return;
|
|
}
|
|
prov = gctl_get_ascii(req, "arg0");
|
|
|
|
if (eli_is_attached(prov))
|
|
eli_delkey_attached(req, prov);
|
|
else
|
|
eli_delkey_detached(req, prov);
|
|
}
|
|
|
|
static void
|
|
eli_resume(struct gctl_req *req)
|
|
{
|
|
struct g_eli_metadata md;
|
|
unsigned char key[G_ELI_USERKEYLEN];
|
|
const char *prov;
|
|
off_t mediasize;
|
|
int nargs;
|
|
|
|
nargs = gctl_get_int(req, "nargs");
|
|
if (nargs != 1) {
|
|
gctl_error(req, "Invalid number of arguments.");
|
|
return;
|
|
}
|
|
prov = gctl_get_ascii(req, "arg0");
|
|
|
|
if (eli_metadata_read(req, prov, &md) == -1)
|
|
return;
|
|
|
|
mediasize = g_get_mediasize(prov);
|
|
if (md.md_provsize != (uint64_t)mediasize) {
|
|
gctl_error(req, "Provider size mismatch.");
|
|
return;
|
|
}
|
|
|
|
if (eli_genkey(req, &md, key, false) == NULL) {
|
|
explicit_bzero(key, sizeof(key));
|
|
return;
|
|
}
|
|
|
|
gctl_ro_param(req, "key", sizeof(key), key);
|
|
if (gctl_issue(req) == NULL) {
|
|
if (verbose)
|
|
printf("Resumed %s.\n", prov);
|
|
}
|
|
explicit_bzero(key, sizeof(key));
|
|
}
|
|
|
|
static int
|
|
eli_trash_metadata(struct gctl_req *req, const char *prov, int fd, off_t offset)
|
|
{
|
|
unsigned int overwrites;
|
|
unsigned char *sector;
|
|
ssize_t size;
|
|
int error;
|
|
|
|
size = sizeof(overwrites);
|
|
if (sysctlbyname("kern.geom.eli.overwrites", &overwrites, &size,
|
|
NULL, 0) == -1 || overwrites == 0) {
|
|
overwrites = G_ELI_OVERWRITES;
|
|
}
|
|
|
|
size = g_sectorsize(fd);
|
|
if (size <= 0) {
|
|
gctl_error(req, "Cannot obtain provider sector size %s: %s.",
|
|
prov, strerror(errno));
|
|
return (-1);
|
|
}
|
|
sector = malloc(size);
|
|
if (sector == NULL) {
|
|
gctl_error(req, "Cannot allocate %zd bytes of memory.", size);
|
|
return (-1);
|
|
}
|
|
|
|
error = 0;
|
|
do {
|
|
arc4random_buf(sector, size);
|
|
if (pwrite(fd, sector, size, offset) != size) {
|
|
if (error == 0)
|
|
error = errno;
|
|
}
|
|
(void)g_flush(fd);
|
|
} while (--overwrites > 0);
|
|
free(sector);
|
|
if (error != 0) {
|
|
gctl_error(req, "Cannot trash metadata on provider %s: %s.",
|
|
prov, strerror(error));
|
|
return (-1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
eli_kill_detached(struct gctl_req *req, const char *prov)
|
|
{
|
|
off_t offset;
|
|
int fd;
|
|
|
|
/*
|
|
* NOTE: Maybe we should verify if this is geli provider first,
|
|
* but 'kill' command is quite critical so better don't waste
|
|
* the time.
|
|
*/
|
|
#if 0
|
|
error = g_metadata_read(prov, (unsigned char *)&md, sizeof(md),
|
|
G_ELI_MAGIC);
|
|
if (error != 0) {
|
|
gctl_error(req, "Cannot read metadata from %s: %s.", prov,
|
|
strerror(error));
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
fd = g_open(prov, 1);
|
|
if (fd == -1) {
|
|
gctl_error(req, "Cannot open provider %s: %s.", prov,
|
|
strerror(errno));
|
|
return;
|
|
}
|
|
offset = g_mediasize(fd) - g_sectorsize(fd);
|
|
if (offset <= 0) {
|
|
gctl_error(req,
|
|
"Cannot obtain media size or sector size for provider %s: %s.",
|
|
prov, strerror(errno));
|
|
(void)g_close(fd);
|
|
return;
|
|
}
|
|
(void)eli_trash_metadata(req, prov, fd, offset);
|
|
(void)g_close(fd);
|
|
}
|
|
|
|
static void
|
|
eli_kill(struct gctl_req *req)
|
|
{
|
|
const char *prov;
|
|
int i, nargs, all;
|
|
|
|
nargs = gctl_get_int(req, "nargs");
|
|
all = gctl_get_int(req, "all");
|
|
if (!all && nargs == 0) {
|
|
gctl_error(req, "Too few arguments.");
|
|
return;
|
|
}
|
|
/*
|
|
* How '-a' option combine with a list of providers:
|
|
* Delete Master Keys from all attached providers:
|
|
* geli kill -a
|
|
* Delete Master Keys from all attached providers and from
|
|
* detached da0 and da1:
|
|
* geli kill -a da0 da1
|
|
* Delete Master Keys from (attached or detached) da0 and da1:
|
|
* geli kill da0 da1
|
|
*/
|
|
|
|
/* First detached providers. */
|
|
for (i = 0; i < nargs; i++) {
|
|
prov = gctl_get_ascii(req, "arg%d", i);
|
|
if (!eli_is_attached(prov))
|
|
eli_kill_detached(req, prov);
|
|
}
|
|
/* Now attached providers. */
|
|
gctl_issue(req);
|
|
}
|
|
|
|
static int
|
|
eli_backup_create(struct gctl_req *req, const char *prov, const char *file)
|
|
{
|
|
unsigned char *sector;
|
|
ssize_t secsize;
|
|
int error, filefd, ret;
|
|
|
|
ret = -1;
|
|
filefd = -1;
|
|
sector = NULL;
|
|
secsize = 0;
|
|
|
|
secsize = g_get_sectorsize(prov);
|
|
if (secsize == 0) {
|
|
gctl_error(req, "Cannot get informations about %s: %s.", prov,
|
|
strerror(errno));
|
|
goto out;
|
|
}
|
|
sector = malloc(secsize);
|
|
if (sector == NULL) {
|
|
gctl_error(req, "Cannot allocate memory.");
|
|
goto out;
|
|
}
|
|
/* Read metadata from the provider. */
|
|
error = g_metadata_read(prov, sector, secsize, G_ELI_MAGIC);
|
|
if (error != 0) {
|
|
gctl_error(req, "Unable to read metadata from %s: %s.", prov,
|
|
strerror(error));
|
|
goto out;
|
|
}
|
|
|
|
filefd = open(file, O_WRONLY | O_TRUNC | O_CREAT, 0600);
|
|
if (filefd == -1) {
|
|
gctl_error(req, "Unable to open %s: %s.", file,
|
|
strerror(errno));
|
|
goto out;
|
|
}
|
|
/* Write metadata to the destination file. */
|
|
if (write(filefd, sector, secsize) != secsize) {
|
|
gctl_error(req, "Unable to write to %s: %s.", file,
|
|
strerror(errno));
|
|
(void)close(filefd);
|
|
(void)unlink(file);
|
|
goto out;
|
|
}
|
|
(void)fsync(filefd);
|
|
(void)close(filefd);
|
|
/* Success. */
|
|
ret = 0;
|
|
out:
|
|
if (sector != NULL) {
|
|
explicit_bzero(sector, secsize);
|
|
free(sector);
|
|
}
|
|
return (ret);
|
|
}
|
|
|
|
static void
|
|
eli_backup(struct gctl_req *req)
|
|
{
|
|
const char *file, *prov;
|
|
int nargs;
|
|
|
|
nargs = gctl_get_int(req, "nargs");
|
|
if (nargs != 2) {
|
|
gctl_error(req, "Invalid number of arguments.");
|
|
return;
|
|
}
|
|
prov = gctl_get_ascii(req, "arg0");
|
|
file = gctl_get_ascii(req, "arg1");
|
|
|
|
eli_backup_create(req, prov, file);
|
|
}
|
|
|
|
static void
|
|
eli_restore(struct gctl_req *req)
|
|
{
|
|
struct g_eli_metadata md;
|
|
const char *file, *prov;
|
|
off_t mediasize;
|
|
int nargs;
|
|
|
|
nargs = gctl_get_int(req, "nargs");
|
|
if (nargs != 2) {
|
|
gctl_error(req, "Invalid number of arguments.");
|
|
return;
|
|
}
|
|
file = gctl_get_ascii(req, "arg0");
|
|
prov = gctl_get_ascii(req, "arg1");
|
|
|
|
/* Read metadata from the backup file. */
|
|
if (eli_metadata_read(req, file, &md) == -1)
|
|
return;
|
|
/* Obtain provider's mediasize. */
|
|
mediasize = g_get_mediasize(prov);
|
|
if (mediasize == 0) {
|
|
gctl_error(req, "Cannot get informations about %s: %s.", prov,
|
|
strerror(errno));
|
|
return;
|
|
}
|
|
/* Check if the provider size has changed since we did the backup. */
|
|
if (md.md_provsize != (uint64_t)mediasize) {
|
|
if (gctl_get_int(req, "force")) {
|
|
md.md_provsize = mediasize;
|
|
} else {
|
|
gctl_error(req, "Provider size mismatch: "
|
|
"wrong backup file?");
|
|
return;
|
|
}
|
|
}
|
|
/* Write metadata to the provider. */
|
|
(void)eli_metadata_store(req, prov, &md);
|
|
}
|
|
|
|
static void
|
|
eli_resize(struct gctl_req *req)
|
|
{
|
|
struct g_eli_metadata md;
|
|
const char *prov;
|
|
unsigned char *sector;
|
|
ssize_t secsize;
|
|
off_t mediasize, oldsize;
|
|
int error, nargs, provfd;
|
|
|
|
nargs = gctl_get_int(req, "nargs");
|
|
if (nargs != 1) {
|
|
gctl_error(req, "Invalid number of arguments.");
|
|
return;
|
|
}
|
|
prov = gctl_get_ascii(req, "arg0");
|
|
|
|
provfd = -1;
|
|
sector = NULL;
|
|
secsize = 0;
|
|
|
|
provfd = g_open(prov, 1);
|
|
if (provfd == -1) {
|
|
gctl_error(req, "Cannot open %s: %s.", prov, strerror(errno));
|
|
goto out;
|
|
}
|
|
|
|
mediasize = g_mediasize(provfd);
|
|
secsize = g_sectorsize(provfd);
|
|
if (mediasize == -1 || secsize == -1) {
|
|
gctl_error(req, "Cannot get information about %s: %s.", prov,
|
|
strerror(errno));
|
|
goto out;
|
|
}
|
|
|
|
sector = malloc(secsize);
|
|
if (sector == NULL) {
|
|
gctl_error(req, "Cannot allocate memory.");
|
|
goto out;
|
|
}
|
|
|
|
oldsize = gctl_get_intmax(req, "oldsize");
|
|
if (oldsize < 0 || oldsize > mediasize) {
|
|
gctl_error(req, "Invalid oldsize: Out of range.");
|
|
goto out;
|
|
}
|
|
if (oldsize == mediasize) {
|
|
gctl_error(req, "Size hasn't changed.");
|
|
goto out;
|
|
}
|
|
|
|
/* Read metadata from the 'oldsize' offset. */
|
|
if (pread(provfd, sector, secsize, oldsize - secsize) != secsize) {
|
|
gctl_error(req, "Cannot read old metadata: %s.",
|
|
strerror(errno));
|
|
goto out;
|
|
}
|
|
|
|
/* Check if this sector contains geli metadata. */
|
|
error = eli_metadata_decode(sector, &md);
|
|
switch (error) {
|
|
case 0:
|
|
break;
|
|
case EOPNOTSUPP:
|
|
gctl_error(req,
|
|
"Provider's %s metadata version %u is too new.\n"
|
|
"geli: The highest supported version is %u.",
|
|
prov, (unsigned int)md.md_version, G_ELI_VERSION);
|
|
goto out;
|
|
case EINVAL:
|
|
gctl_error(req, "Inconsistent provider's %s metadata.", prov);
|
|
goto out;
|
|
default:
|
|
gctl_error(req,
|
|
"Unexpected error while decoding provider's %s metadata: %s.",
|
|
prov, strerror(error));
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* If the old metadata doesn't have a correct provider size, refuse
|
|
* to resize.
|
|
*/
|
|
if (md.md_provsize != (uint64_t)oldsize) {
|
|
gctl_error(req, "Provider size mismatch at oldsize.");
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Update the old metadata with the current provider size and write
|
|
* it back to the correct place on the provider.
|
|
*/
|
|
md.md_provsize = mediasize;
|
|
/* Write metadata to the provider. */
|
|
(void)eli_metadata_store(req, prov, &md);
|
|
/* Now trash the old metadata. */
|
|
(void)eli_trash_metadata(req, prov, provfd, oldsize - secsize);
|
|
out:
|
|
if (provfd != -1)
|
|
(void)g_close(provfd);
|
|
if (sector != NULL) {
|
|
explicit_bzero(sector, secsize);
|
|
free(sector);
|
|
}
|
|
}
|
|
|
|
static void
|
|
eli_version(struct gctl_req *req)
|
|
{
|
|
struct g_eli_metadata md;
|
|
const char *name;
|
|
unsigned int version;
|
|
int error, i, nargs;
|
|
|
|
nargs = gctl_get_int(req, "nargs");
|
|
|
|
if (nargs == 0) {
|
|
unsigned int kernver;
|
|
ssize_t size;
|
|
|
|
size = sizeof(kernver);
|
|
if (sysctlbyname("kern.geom.eli.version", &kernver, &size,
|
|
NULL, 0) == -1) {
|
|
warn("Unable to obtain GELI kernel version");
|
|
} else {
|
|
printf("kernel: %u\n", kernver);
|
|
}
|
|
printf("userland: %u\n", G_ELI_VERSION);
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < nargs; i++) {
|
|
name = gctl_get_ascii(req, "arg%d", i);
|
|
error = g_metadata_read(name, (unsigned char *)&md,
|
|
sizeof(md), G_ELI_MAGIC);
|
|
if (error != 0) {
|
|
warn("%s: Unable to read metadata: %s.", name,
|
|
strerror(error));
|
|
gctl_error(req, "Not fully done.");
|
|
continue;
|
|
}
|
|
version = le32dec(&md.md_version);
|
|
printf("%s: %u\n", name, version);
|
|
}
|
|
}
|
|
|
|
static void
|
|
eli_clear(struct gctl_req *req)
|
|
{
|
|
const char *name;
|
|
int error, i, nargs;
|
|
|
|
nargs = gctl_get_int(req, "nargs");
|
|
if (nargs < 1) {
|
|
gctl_error(req, "Too few arguments.");
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < nargs; i++) {
|
|
name = gctl_get_ascii(req, "arg%d", i);
|
|
error = g_metadata_clear(name, G_ELI_MAGIC);
|
|
if (error != 0) {
|
|
fprintf(stderr, "Cannot clear metadata on %s: %s.\n",
|
|
name, strerror(error));
|
|
gctl_error(req, "Not fully done.");
|
|
continue;
|
|
}
|
|
if (verbose)
|
|
printf("Metadata cleared on %s.\n", name);
|
|
}
|
|
}
|
|
|
|
static void
|
|
eli_dump(struct gctl_req *req)
|
|
{
|
|
struct g_eli_metadata md;
|
|
const char *name;
|
|
int i, nargs;
|
|
|
|
nargs = gctl_get_int(req, "nargs");
|
|
if (nargs < 1) {
|
|
gctl_error(req, "Too few arguments.");
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < nargs; i++) {
|
|
name = gctl_get_ascii(req, "arg%d", i);
|
|
if (eli_metadata_read(NULL, name, &md) == -1) {
|
|
gctl_error(req, "Not fully done.");
|
|
continue;
|
|
}
|
|
printf("Metadata on %s:\n", name);
|
|
eli_metadata_dump(&md);
|
|
printf("\n");
|
|
}
|
|
}
|