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/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/utils/ll_decode_filter_fid.c
34 * Tool for printing the OST filter_fid structure on the objects
35 * in human readable form.
37 * Author: Andreas Dilger <adilger@sun.com>
43 #include <sys/types.h>
44 #include <sys/xattr.h>
45 #include <asm/byteorder.h>
46 #include <linux/lustre/lustre_user.h>
48 #define PFID_STRIPE_IDX_BITS 16
49 #define PFID_STRIPE_COUNT_MASK ((1 << PFID_STRIPE_IDX_BITS) - 1)
51 #if __BYTE_ORDER == __BIG_ENDIAN
52 static void lustre_swab_lu_fid(struct lu_fid *fid)
54 __swab64s(&fid->f_seq);
55 __swab32s(&fid->f_oid);
56 __swab32s(&fid->f_ver);
59 static void lustre_loa_swab(struct lustre_ost_attrs *loa)
61 struct lustre_mdt_attrs *lma = &loa->loa_lma;
63 __swab32s(&lma->lma_compat);
64 __swab32s(&lma->lma_incompat);
65 lustre_swab_lu_fid(&lma->lma_self_fid);
66 if (lma->lma_compat & LMAC_STRIPE_INFO) {
67 lustre_swab_lu_fid(&loa->loa_parent_fid);
68 __swab32s(&loa->loa_stripe_size);
70 if (lma->lma_compat & LMAC_COMP_INFO) {
71 __swab32s(&loa->loa_comp_id);
72 __swab64s(&loa->loa_comp_start);
73 __swab64s(&loa->loa_comp_end);
77 static void lustre_loa_swab(struct lustre_ost_attrs *loa)
82 int main(int argc, char *argv[])
87 for (i = 1; i < argc; i++) {
88 char buf[1024]; /* allow xattr that may be larger */
89 struct filter_fid *ff = (void *)buf;
93 size = getxattr(argv[i], "trusted.fid", buf,
94 sizeof(struct filter_fid));
96 if (errno == ENODATA) {
97 struct lustre_ost_attrs *loa = (void *)buf;
100 rc1 = getxattr(argv[i], "trusted.lma", loa,
102 if (rc1 < sizeof(*loa)) {
104 "%s: error reading fid: %s\n",
105 argv[i], strerror(ENODATA));
111 lustre_loa_swab(loa);
112 if (!(loa->loa_lma.lma_compat &
115 "%s: not stripe info: %s\n",
116 argv[i], strerror(ENODATA));
122 printf("%s: parent="DFID" stripe=%u "
123 "stripe_size=%u stripe_count=%u",
125 (unsigned long long)loa->loa_parent_fid.f_seq,
126 loa->loa_parent_fid.f_oid, 0, /* ver */
127 loa->loa_parent_fid.f_stripe_idx &
128 PFID_STRIPE_COUNT_MASK,
129 loa->loa_stripe_size,
130 loa->loa_parent_fid.f_stripe_idx >>
131 PFID_STRIPE_IDX_BITS);
132 if (loa->loa_comp_id != 0)
133 printf(" component_id=%u "
134 "component_start=%llu "
135 "component_end=%llu",
137 (unsigned long long)loa->loa_comp_start,
138 (unsigned long long)loa->loa_comp_end);
143 fprintf(stderr, "%s: error reading fid: %s\n",
144 argv[i], strerror(errno));
150 if (size != sizeof(struct filter_fid) &&
151 size != sizeof(struct filter_fid_18_23) &&
152 size != sizeof(struct filter_fid_24_29) &&
153 size != sizeof(struct filter_fid_210) && !printed) {
155 "%s: warning: ffid size is unexpected (%d bytes), recompile?\n",
159 if (size < sizeof(struct filter_fid_24_29))
163 printf("%s: ", argv[i]);
164 if (size == sizeof(struct filter_fid_18_23)) {
165 struct filter_fid_18_23 *ffo = (void *)buf;
167 printf("objid=%llu seq=%llu ",
168 (unsigned long long)__le64_to_cpu(ffo->ff_objid),
169 (unsigned long long)__le64_to_cpu(ffo->ff_seq));
172 printf("parent="DFID" stripe=%u",
173 (unsigned long long)__le64_to_cpu(ff->ff_parent.f_seq),
174 __le32_to_cpu(ff->ff_parent.f_oid), 0, /* ver */
175 /* this is stripe_nr actually */
176 __le32_to_cpu(ff->ff_parent.f_stripe_idx));
178 if (size >= sizeof(struct filter_fid_210)) {
179 struct ost_layout *ol = &ff->ff_layout;
181 /* new filter_fid, support PFL */
182 printf(" stripe_size=%u stripe_count=%u",
183 __le32_to_cpu(ol->ol_stripe_size),
184 __le32_to_cpu(ol->ol_stripe_count));
185 if (ol->ol_comp_id != 0)
186 printf(" component_id=%u "
187 "component_start=%llu "
188 "component_end=%llu",
189 __le32_to_cpu(ol->ol_comp_id),
191 __le64_to_cpu(ol->ol_comp_start),
193 __le64_to_cpu(ol->ol_comp_end));
195 if (size >= sizeof(struct filter_fid))
196 printf(" layout_version=%u range=%u",
197 __le32_to_cpu(ff->ff_layout_version),
198 __le32_to_cpu(ff->ff_range));