From f24fbfc1e13f988571bd7978a3ed5355b840feaf Mon Sep 17 00:00:00 2001 From: allanjude Date: Tue, 12 Jan 2016 16:38:09 +0000 Subject: MFC: r284589 Add the ability to detect ZFS and GELI encrypted file systems to fstyp(8) MFC: r284644 Fix GCC Warnings MFC: r284728 Only build ZFS support in absense of WITHOUT_ZFS MFC: r285426 Remove excess copyrights MFC: r286569 Use GELI sentinel constant MFC: r287937 Eliminate unneeded copying of vdev data, goto, etc. and add a note that checksum of vdev label should be checked (which is not done currently). No functional change. While I'm there, raise WARNS to 2. MFC: r292757 Fix order of includes in usr.sbin/fstyp/zfs.c MFC: r292829 Eliminate unneeded includes. --- usr.sbin/fstyp/Makefile | 34 +++++++++++++++++++-- usr.sbin/fstyp/fstyp.8 | 46 ++++++++++++++++++++++++----- usr.sbin/fstyp/fstyp.c | 29 +++++++++++------- usr.sbin/fstyp/fstyp.h | 4 +++ usr.sbin/fstyp/geli.c | 71 ++++++++++++++++++++++++++++++++++++++++++++ usr.sbin/fstyp/zfs.c | 78 +++++++++++++++++++++++++++++++++++++++++++++++++ 6 files changed, 242 insertions(+), 20 deletions(-) create mode 100644 usr.sbin/fstyp/geli.c create mode 100644 usr.sbin/fstyp/zfs.c (limited to 'usr.sbin') diff --git a/usr.sbin/fstyp/Makefile b/usr.sbin/fstyp/Makefile index b80398b..f17c005 100644 --- a/usr.sbin/fstyp/Makefile +++ b/usr.sbin/fstyp/Makefile @@ -3,13 +3,43 @@ .include PROG= fstyp -SRCS= fstyp.c ext2fs.c cd9660.c msdosfs.c ntfs.c ufs.c +SRCS= cd9660.c ext2fs.c fstyp.c geli.c msdosfs.c ntfs.c ufs.c + +.if ${MK_ZFS} != "no" +SRCS += zfs.c +.endif + MAN= fstyp.8 -WARNS= 6 +WARNS?= 2 .if ${MK_TESTS} != "no" SUBDIR+= tests .endif +CFLAGS+=-I${.CURDIR}/../../sys + +.if ${MK_ZFS} != "no" +IGNORE_PRAGMA= YES + +CFLAGS+= -DNEED_SOLARIS_BOOLEAN -DHAVE_ZFS +CFLAGS+= -I${.CURDIR}/../../sys/cddl/compat/opensolaris +CFLAGS+= -I${.CURDIR}/../../cddl/compat/opensolaris/include +CFLAGS+= -I${.CURDIR}/../../cddl/compat/opensolaris/lib/libumem +CFLAGS+= -I${.CURDIR}/../../cddl/contrib/opensolaris/lib/libnvpair +CFLAGS+= -I${.CURDIR}/../../cddl/contrib/opensolaris/lib/libzpool/common +CFLAGS+= -I${.CURDIR}/../../sys/cddl/contrib/opensolaris/uts/common/fs/zfs +CFLAGS+= -I${.CURDIR}/../../sys/cddl/contrib/opensolaris/uts/common +CFLAGS+= -I${.CURDIR}/../../sys/cddl/contrib/opensolaris/uts/common/sys +CFLAGS+= -I${.CURDIR}/../../cddl/contrib/opensolaris/head +.endif + +DPADD= ${LIBGEOM} ${LIBMD} +LDADD= -lgeom -lmd + +.if ${MK_ZFS} != "no" +DPADD += ${LIBNVPAIR} ${LIBZFS} +LDADD += -lnvpair -lzfs +.endif + .include diff --git a/usr.sbin/fstyp/fstyp.8 b/usr.sbin/fstyp/fstyp.8 index e72b01a..835feff 100644 --- a/usr.sbin/fstyp/fstyp.8 +++ b/usr.sbin/fstyp/fstyp.8 @@ -37,20 +37,42 @@ .Nm .Op Fl l .Op Fl s +.Op Fl u .Ar special .Sh DESCRIPTION The .Nm utility is used to determine the filesystem type on a given device. It can recognize ISO-9660, Ext2, FAT, NTFS, and UFS filesystems. +When the +.Fl u +flag is specified, +.Nm +also recognizes certain additional metadata formats that cannot be +handled using +.Xr mount 8 , +such as ZFS pools and +.Xr geli 8 +providers. +.Pp The filesystem name is printed to the standard output -as, respectively, -.Li cd9660 , -.Li ext2fs , -.Li msdosfs , -.Li ntfs , -or -.Li ufs . +as, respectively: +.Bl -item -offset indent -compact +.It +cd9660 +.It +ext2fs +.It +geli +.It +msdosfs +.It +ntfs +.It +ufs +.It +zfs +.El .Pp Because .Nm @@ -73,6 +95,9 @@ By default, only works on regular files and disk-like device nodes. Trying to read other file types might have unexpected consequences or hang indefinitely. +.It Fl u +Include filesystems and devices that cannot be mounted directly by +.Xr mount 8 . .El .Sh EXIT STATUS The @@ -82,8 +107,11 @@ type is not recognized. .Sh SEE ALSO .Xr file 1 , .Xr capsicum 4 , +.Xr autofs 8 , +.Xr geli 8 , .Xr glabel 8 , -.Xr mount 8 +.Xr mount 8 , +.Xr zpool 8 .Sh HISTORY The .Nm @@ -95,3 +123,5 @@ The utility was developed by .An Edward Tomasz Napierala Aq Mt trasz@FreeBSD.org under sponsorship from the FreeBSD Foundation. +ZFS and GELI support was added by +.An Allan Jude Aq Mt allanjude@FreeBSD.org diff --git a/usr.sbin/fstyp/fstyp.c b/usr.sbin/fstyp/fstyp.c index b49eb1e..843832e 100644 --- a/usr.sbin/fstyp/fstyp.c +++ b/usr.sbin/fstyp/fstyp.c @@ -39,7 +39,6 @@ __FBSDID("$FreeBSD$"); #include #include #include -#include #include #include #include @@ -55,13 +54,18 @@ typedef int (*fstyp_function)(FILE *, char *, size_t); static struct { const char *name; fstyp_function function; + bool unmountable; } fstypes[] = { - { "cd9660", &fstyp_cd9660 }, - { "ext2fs", &fstyp_ext2fs }, - { "msdosfs", &fstyp_msdosfs }, - { "ntfs", &fstyp_ntfs }, - { "ufs", &fstyp_ufs }, - { NULL, NULL } + { "cd9660", &fstyp_cd9660, false }, + { "ext2fs", &fstyp_ext2fs, false }, + { "geli", &fstyp_geli, true }, + { "msdosfs", &fstyp_msdosfs, false }, + { "ntfs", &fstyp_ntfs, false }, + { "ufs", &fstyp_ufs, false }, +#ifdef HAVE_ZFS + { "zfs", &fstyp_zfs, true }, +#endif + { NULL, NULL, NULL } }; void * @@ -124,7 +128,7 @@ static void usage(void) { - fprintf(stderr, "usage: fstyp [-l][-s] special\n"); + fprintf(stderr, "usage: fstyp [-l] [-s] [-u] special\n"); exit(1); } @@ -153,13 +157,13 @@ int main(int argc, char **argv) { int ch, error, i, nbytes; - bool ignore_type = false, show_label = false; + bool ignore_type = false, show_label = false, show_unmountable = false; char label[LABEL_LEN + 1], strvised[LABEL_LEN * 4 + 1]; char *path; FILE *fp; fstyp_function fstyp_f; - while ((ch = getopt(argc, argv, "ls")) != -1) { + while ((ch = getopt(argc, argv, "lsu")) != -1) { switch (ch) { case 'l': show_label = true; @@ -167,6 +171,9 @@ main(int argc, char **argv) case 's': ignore_type = true; break; + case 'u': + show_unmountable = true; + break; default: usage(); } @@ -193,6 +200,8 @@ main(int argc, char **argv) memset(label, '\0', sizeof(label)); for (i = 0;; i++) { + if (show_unmountable == false && fstypes[i].unmountable == true) + continue; fstyp_f = fstypes[i].function; if (fstyp_f == NULL) break; diff --git a/usr.sbin/fstyp/fstyp.h b/usr.sbin/fstyp/fstyp.h index d4fd54f..8deba5e 100644 --- a/usr.sbin/fstyp/fstyp.h +++ b/usr.sbin/fstyp/fstyp.h @@ -40,8 +40,12 @@ void rtrim(char *label, size_t size); int fstyp_cd9660(FILE *fp, char *label, size_t size); int fstyp_ext2fs(FILE *fp, char *label, size_t size); +int fstyp_geli(FILE *fp, char *label, size_t size); int fstyp_msdosfs(FILE *fp, char *label, size_t size); int fstyp_ntfs(FILE *fp, char *label, size_t size); int fstyp_ufs(FILE *fp, char *label, size_t size); +#ifdef HAVE_ZFS +int fstyp_zfs(FILE *fp, char *label, size_t size); +#endif #endif /* !FSTYP_H */ diff --git a/usr.sbin/fstyp/geli.c b/usr.sbin/fstyp/geli.c new file mode 100644 index 0000000..59e8653 --- /dev/null +++ b/usr.sbin/fstyp/geli.c @@ -0,0 +1,71 @@ +/*- + * Copyright (c) 2015 Allan Jude + * 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 +__FBSDID("$FreeBSD$"); + +#include +#include +#include +#include +#include + +#include + +#include "fstyp.h" + +int +fstyp_geli(FILE *fp, char *label __unused, size_t labelsize __unused) +{ + int error; + off_t mediasize; + u_int sectorsize; + struct g_eli_metadata md; + u_char *buf; + + error = ioctl(fileno(fp), DIOCGMEDIASIZE, &mediasize); + if (error != 0) + return (1); + error = ioctl(fileno(fp), DIOCGSECTORSIZE, §orsize); + if (error != 0) + return (1); + buf = (u_char *)read_buf(fp, mediasize - sectorsize, sectorsize); + if (buf == NULL) + goto gelierr; + error = eli_metadata_decode(buf, &md); + if (error) + goto gelierr; + + if (strcmp(md.md_magic, G_ELI_MAGIC) == 0) { + free(buf); + return (0); + } + +gelierr: + free(buf); + + return (1); +} diff --git a/usr.sbin/fstyp/zfs.c b/usr.sbin/fstyp/zfs.c new file mode 100644 index 0000000..c37a5db --- /dev/null +++ b/usr.sbin/fstyp/zfs.c @@ -0,0 +1,78 @@ +/*- + * Copyright (c) 2015 Allan Jude + * Copyright (c) 2015 Xin LI + * 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 +__FBSDID("$FreeBSD$"); + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include "fstyp.h" + +int +fstyp_zfs(FILE *fp, char *label, size_t labelsize) +{ + vdev_label_t *vdev_label = NULL; + vdev_phys_t *vdev_phys; + char *zpool_name = NULL; + nvlist_t *config = NULL; + int err = 0; + + /* + * Read in the first ZFS vdev label ("L0"), located at the beginning + * of the vdev and extract the pool name from it. + * + * TODO: the checksum of label should be validated. + */ + vdev_label = (vdev_label_t *)read_buf(fp, 0, sizeof(*vdev_label)); + if (vdev_label == NULL) + return (1); + + vdev_phys = &(vdev_label->vl_vdev_phys); + + if ((nvlist_unpack(vdev_phys->vp_nvlist, sizeof(vdev_phys->vp_nvlist), + &config, 0)) == 0 && + (nvlist_lookup_string(config, "name", &zpool_name) == 0)) { + strlcpy(label, zpool_name, labelsize); + } else + err = 1; + + nvlist_free(config); + free(vdev_label); + + return (err); +} -- cgit v1.1