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 #define PFID_STRIPE_IDX_BITS 16
48 #define PFID_STRIPE_COUNT_MASK ((1 << PFID_STRIPE_IDX_BITS) - 1)
50 #if __BYTE_ORDER == __BIG_ENDIAN
51 static void lustre_swab_lu_fid(struct lu_fid *fid)
53 __swab64s(&fid->f_seq);
54 __swab32s(&fid->f_oid);
55 __swab32s(&fid->f_ver);
58 static void lustre_loa_swab(struct lustre_ost_attrs *loa)
60 struct lustre_mdt_attrs *lma = &loa->loa_lma;
62 __swab32s(&lma->lma_compat);
63 __swab32s(&lma->lma_incompat);
64 lustre_swab_lu_fid(&lma->lma_self_fid);
65 if (lma->lma_compat & LMAC_STRIPE_INFO) {
66 lustre_swab_lu_fid(&loa->loa_parent_fid);
67 __swab32s(&loa->loa_stripe_size);
69 if (lma->lma_compat & LMAC_COMP_INFO) {
70 __swab32s(&loa->loa_comp_id);
71 __swab64s(&loa->loa_comp_start);
72 __swab64s(&loa->loa_comp_end);
76 static void lustre_loa_swab(struct lustre_ost_attrs *loa)
81 int main(int argc, char *argv[])
86 for (i = 1; i < argc; i++) {
87 char buf[1024]; /* allow xattr that may be larger */
88 struct filter_fid *ff = (void *)buf;
92 size = getxattr(argv[i], "trusted.fid", buf,
93 sizeof(struct filter_fid));
95 if (errno == ENODATA) {
96 struct lustre_ost_attrs *loa = (void *)buf;
99 rc1 = getxattr(argv[i], "trusted.lma", loa,
101 if (rc1 < sizeof(*loa)) {
103 "%s: error reading fid: %s\n",
104 argv[i], strerror(ENODATA));
110 lustre_loa_swab(loa);
111 if (!(loa->loa_lma.lma_compat &
114 "%s: not stripe info: %s\n",
115 argv[i], strerror(ENODATA));
121 printf("%s: parent="DFID" stripe=%u "
122 "stripe_size=%u stripe_count=%u",
124 (unsigned long long)loa->loa_parent_fid.f_seq,
125 loa->loa_parent_fid.f_oid, 0, /* ver */
126 loa->loa_parent_fid.f_stripe_idx &
127 PFID_STRIPE_COUNT_MASK,
128 loa->loa_stripe_size,
129 loa->loa_parent_fid.f_stripe_idx >>
130 PFID_STRIPE_IDX_BITS);
131 if (loa->loa_comp_id != 0)
132 printf(" component_id=%u "
133 "component_start=%llu "
134 "component_end=%llu",
136 (unsigned long long)loa->loa_comp_start,
137 (unsigned long long)loa->loa_comp_end);
142 fprintf(stderr, "%s: error reading fid: %s\n",
143 argv[i], strerror(errno));
149 if (size != sizeof(struct filter_fid) &&
150 size != sizeof(struct filter_fid_18_23) &&
151 size != sizeof(struct filter_fid_24_29) &&
152 size != sizeof(struct filter_fid_210) && !printed) {
154 "%s: warning: ffid size is unexpected (%d bytes), recompile?\n",
158 if (size < sizeof(struct filter_fid_24_29))
162 printf("%s: ", argv[i]);
163 if (size == sizeof(struct filter_fid_18_23)) {
164 struct filter_fid_18_23 *ffo = (void *)buf;
166 printf("objid=%llu seq=%llu ",
167 (unsigned long long)__le64_to_cpu(ffo->ff_objid),
168 (unsigned long long)__le64_to_cpu(ffo->ff_seq));
171 printf("parent="DFID" stripe=%u",
172 (unsigned long long)__le64_to_cpu(ff->ff_parent.f_seq),
173 __le32_to_cpu(ff->ff_parent.f_oid), 0, /* ver */
174 /* this is stripe_nr actually */
175 __le32_to_cpu(ff->ff_parent.f_stripe_idx));
177 if (size >= sizeof(struct filter_fid_210)) {
178 struct ost_layout *ol = &ff->ff_layout;
180 /* new filter_fid, support PFL */
181 printf(" stripe_size=%u stripe_count=%u",
182 __le32_to_cpu(ol->ol_stripe_size),
183 __le32_to_cpu(ol->ol_stripe_count));
184 if (ol->ol_comp_id != 0)
185 printf(" component_id=%u "
186 "component_start=%llu "
187 "component_end=%llu",
188 __le32_to_cpu(ol->ol_comp_id),
190 __le64_to_cpu(ol->ol_comp_start),
192 __le64_to_cpu(ol->ol_comp_end));
194 if (size >= sizeof(struct filter_fid))
195 printf(" layout_version=%u range=%u",
196 __le32_to_cpu(ff->ff_layout_version),
197 __le32_to_cpu(ff->ff_range));