4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
31 * lustre/utils/ll_decode_filter_fid.c
33 * Tool for printing the OST filter_fid structure on the objects
34 * in human readable form.
36 * Author: Andreas Dilger <adilger@sun.com>
42 #include <sys/types.h>
43 #include <sys/xattr.h>
44 #include <asm/byteorder.h>
45 #include <linux/lustre/lustre_user.h>
47 #if __BYTE_ORDER == __BIG_ENDIAN
48 static void lustre_swab_lu_fid(struct lu_fid *fid)
50 __swab64s(&fid->f_seq);
51 __swab32s(&fid->f_oid);
52 __swab32s(&fid->f_ver);
55 static void lustre_loa_swab(struct lustre_ost_attrs *loa)
57 struct lustre_mdt_attrs *lma = &loa->loa_lma;
59 __swab32s(&lma->lma_compat);
60 __swab32s(&lma->lma_incompat);
61 lustre_swab_lu_fid(&lma->lma_self_fid);
62 if (lma->lma_compat & LMAC_STRIPE_INFO) {
63 lustre_swab_lu_fid(&loa->loa_parent_fid);
64 __swab32s(&loa->loa_stripe_size);
66 if (lma->lma_compat & LMAC_COMP_INFO) {
67 __swab32s(&loa->loa_comp_id);
68 __swab64s(&loa->loa_comp_start);
69 __swab64s(&loa->loa_comp_end);
73 static void lustre_loa_swab(struct lustre_ost_attrs *loa)
78 int main(int argc, char *argv[])
83 for (i = 1; i < argc; i++) {
84 char buf[1024]; /* allow xattr that may be larger */
85 struct filter_fid *ff = (void *)buf;
89 size = getxattr(argv[i], "trusted.fid", buf,
90 sizeof(struct filter_fid));
92 if (errno == ENODATA) {
93 struct lustre_ost_attrs *loa = (void *)buf;
96 rc1 = getxattr(argv[i], "trusted.lma", loa,
98 if (rc1 < sizeof(*loa)) {
100 "%s: error reading fid: %s\n",
101 argv[i], strerror(ENODATA));
107 lustre_loa_swab(loa);
108 if (!(loa->loa_lma.lma_compat &
111 "%s: not stripe info: %s\n",
112 argv[i], strerror(ENODATA));
118 printf("%s: parent="DFID" stripe=%u "
119 "stripe_size=%u stripe_count=%u",
121 (unsigned long long)loa->loa_parent_fid.f_seq,
122 loa->loa_parent_fid.f_oid, 0, /* ver */
123 loa->loa_parent_fid.f_stripe_idx &
124 PFID_STRIPE_COUNT_MASK,
125 loa->loa_stripe_size,
126 loa->loa_parent_fid.f_stripe_idx >>
127 PFID_STRIPE_IDX_BITS);
128 if (loa->loa_comp_id != 0)
129 printf(" component_id=%u "
130 "component_start=%llu "
131 "component_end=%llu",
133 (unsigned long long)loa->loa_comp_start,
134 (unsigned long long)loa->loa_comp_end);
139 fprintf(stderr, "%s: error reading fid: %s\n",
140 argv[i], strerror(errno));
146 if (size != sizeof(struct filter_fid) &&
147 size != sizeof(struct filter_fid_18_23) &&
148 size != sizeof(struct filter_fid_24_29) &&
149 size != sizeof(struct filter_fid_210) && !printed) {
151 "%s: warning: ffid size is unexpected (%d bytes), recompile?\n",
155 if (size < sizeof(struct filter_fid_24_29))
159 printf("%s: ", argv[i]);
160 if (size == sizeof(struct filter_fid_18_23)) {
161 struct filter_fid_18_23 *ffo = (void *)buf;
163 printf("objid=%llu seq=%llu ",
164 (unsigned long long)__le64_to_cpu(ffo->ff_objid),
165 (unsigned long long)__le64_to_cpu(ffo->ff_seq));
168 printf("parent="DFID" stripe=%u",
169 (unsigned long long)__le64_to_cpu(ff->ff_parent.f_seq),
170 __le32_to_cpu(ff->ff_parent.f_oid), 0, /* ver */
171 /* this is stripe_nr actually */
172 __le32_to_cpu(ff->ff_parent.f_stripe_idx));
174 if (size >= sizeof(struct filter_fid_210)) {
175 struct ost_layout *ol = &ff->ff_layout;
177 /* new filter_fid, support PFL */
178 printf(" stripe_size=%u stripe_count=%u",
179 __le32_to_cpu(ol->ol_stripe_size),
180 __le32_to_cpu(ol->ol_stripe_count));
181 if (ol->ol_comp_id != 0)
182 printf(" component_id=%u "
183 "component_start=%llu "
184 "component_end=%llu",
185 __le32_to_cpu(ol->ol_comp_id),
187 __le64_to_cpu(ol->ol_comp_start),
189 __le64_to_cpu(ol->ol_comp_end));
191 if (size >= sizeof(struct filter_fid))
192 printf(" layout_version=%u range=%u",
193 __le32_to_cpu(ff->ff_layout_version),
194 __le32_to_cpu(ff->ff_range));