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.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2012, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #define DEBUG_SUBSYSTEM S_LOG
39 #include <obd_class.h>
40 #include <lustre_log.h>
41 #include "llog_internal.h"
43 static int str2logid(struct llog_logid
*logid
, char *str
, int len
)
45 char *start
, *end
, *endp
;
54 if (start
- str
>= len
- 1)
56 end
= strchr(start
, '#');
57 if (end
== NULL
|| end
== start
)
61 id
= simple_strtoull(start
, &endp
, 0);
66 if (start
- str
>= len
- 1)
68 end
= strchr(start
, '#');
69 if (end
== NULL
|| end
== start
)
73 seq
= simple_strtoull(start
, &endp
, 0);
77 ostid_set_seq(&logid
->lgl_oi
, seq
);
78 ostid_set_id(&logid
->lgl_oi
, id
);
81 if (start
- str
>= len
- 1)
83 logid
->lgl_ogen
= simple_strtoul(start
, &endp
, 16);
90 static int llog_check_cb(const struct lu_env
*env
, struct llog_handle
*handle
,
91 struct llog_rec_hdr
*rec
, void *data
)
93 struct obd_ioctl_data
*ioc_data
= (struct obd_ioctl_data
*)data
;
94 static int l
, remains
, from
, to
;
97 int cur_index
, rc
= 0;
101 if (ioc_data
&& ioc_data
->ioc_inllen1
> 0) {
103 remains
= ioc_data
->ioc_inllen4
+
104 cfs_size_round(ioc_data
->ioc_inllen1
) +
105 cfs_size_round(ioc_data
->ioc_inllen2
) +
106 cfs_size_round(ioc_data
->ioc_inllen3
);
107 from
= simple_strtol(ioc_data
->ioc_inlbuf2
, &endp
, 0);
110 to
= simple_strtol(ioc_data
->ioc_inlbuf3
, &endp
, 0);
113 ioc_data
->ioc_inllen1
= 0;
114 out
= ioc_data
->ioc_bulk
;
117 cur_index
= rec
->lrh_index
;
118 if (cur_index
< from
)
120 if (to
> 0 && cur_index
> to
)
121 RETURN(-LLOG_EEMPTY
);
123 if (handle
->lgh_hdr
->llh_flags
& LLOG_F_IS_CAT
) {
124 struct llog_logid_rec
*lir
= (struct llog_logid_rec
*)rec
;
125 struct llog_handle
*loghandle
;
127 if (rec
->lrh_type
!= LLOG_LOGID_MAGIC
) {
128 l
= snprintf(out
, remains
, "[index]: %05d [type]: "
129 "%02x [len]: %04d failed\n",
130 cur_index
, rec
->lrh_type
,
133 if (handle
->lgh_ctxt
== NULL
)
135 rc
= llog_cat_id2handle(env
, handle
, &loghandle
, &lir
->lid_id
);
137 CDEBUG(D_IOCTL
, "cannot find log #"DOSTID
"#%08x\n",
138 POSTID(&lir
->lid_id
.lgl_oi
),
139 lir
->lid_id
.lgl_ogen
);
142 rc
= llog_process(env
, loghandle
, llog_check_cb
, NULL
, NULL
);
143 llog_handle_put(loghandle
);
147 switch (rec
->lrh_type
) {
150 case MDS_UNLINK64_REC
:
151 case MDS_SETATTR64_REC
:
161 l
= snprintf(out
, remains
, "[index]: %05d [type]: "
162 "%02x [len]: %04d %s\n",
163 cur_index
, rec
->lrh_type
, rec
->lrh_len
,
164 ok
? "ok" : "failed");
168 CERROR("%s: no space to print log records\n",
169 handle
->lgh_ctxt
->loc_obd
->obd_name
);
170 RETURN(-LLOG_EEMPTY
);
176 static int llog_print_cb(const struct lu_env
*env
, struct llog_handle
*handle
,
177 struct llog_rec_hdr
*rec
, void *data
)
179 struct obd_ioctl_data
*ioc_data
= (struct obd_ioctl_data
*)data
;
180 static int l
, remains
, from
, to
;
186 if (ioc_data
!= NULL
&& ioc_data
->ioc_inllen1
> 0) {
188 remains
= ioc_data
->ioc_inllen4
+
189 cfs_size_round(ioc_data
->ioc_inllen1
) +
190 cfs_size_round(ioc_data
->ioc_inllen2
) +
191 cfs_size_round(ioc_data
->ioc_inllen3
);
192 from
= simple_strtol(ioc_data
->ioc_inlbuf2
, &endp
, 0);
195 to
= simple_strtol(ioc_data
->ioc_inlbuf3
, &endp
, 0);
198 out
= ioc_data
->ioc_bulk
;
199 ioc_data
->ioc_inllen1
= 0;
202 cur_index
= rec
->lrh_index
;
203 if (cur_index
< from
)
205 if (to
> 0 && cur_index
> to
)
206 RETURN(-LLOG_EEMPTY
);
208 if (handle
->lgh_hdr
->llh_flags
& LLOG_F_IS_CAT
) {
209 struct llog_logid_rec
*lir
= (struct llog_logid_rec
*)rec
;
211 if (rec
->lrh_type
!= LLOG_LOGID_MAGIC
) {
212 CERROR("invalid record in catalog\n");
216 l
= snprintf(out
, remains
,
217 "[index]: %05d [logid]: #"DOSTID
"#%08x\n",
218 cur_index
, POSTID(&lir
->lid_id
.lgl_oi
),
219 lir
->lid_id
.lgl_ogen
);
220 } else if (rec
->lrh_type
== OBD_CFG_REC
) {
223 rc
= class_config_parse_rec(rec
, out
, remains
);
228 l
= snprintf(out
, remains
,
229 "[index]: %05d [type]: %02x [len]: %04d\n",
230 cur_index
, rec
->lrh_type
, rec
->lrh_len
);
235 CERROR("not enough space for print log records\n");
236 RETURN(-LLOG_EEMPTY
);
241 static int llog_remove_log(const struct lu_env
*env
, struct llog_handle
*cat
,
242 struct llog_logid
*logid
)
244 struct llog_handle
*log
;
249 rc
= llog_cat_id2handle(env
, cat
, &log
, logid
);
251 CDEBUG(D_IOCTL
, "cannot find log #"DOSTID
"#%08x\n",
252 POSTID(&logid
->lgl_oi
), logid
->lgl_ogen
);
256 rc
= llog_destroy(env
, log
);
258 CDEBUG(D_IOCTL
, "cannot destroy log\n");
261 llog_cat_cleanup(env
, cat
, log
, log
->u
.phd
.phd_cookie
.lgc_index
);
263 llog_handle_put(log
);
268 static int llog_delete_cb(const struct lu_env
*env
, struct llog_handle
*handle
,
269 struct llog_rec_hdr
*rec
, void *data
)
271 struct llog_logid_rec
*lir
= (struct llog_logid_rec
*)rec
;
275 if (rec
->lrh_type
!= LLOG_LOGID_MAGIC
)
277 rc
= llog_remove_log(env
, handle
, &lir
->lid_id
);
283 int llog_ioctl(const struct lu_env
*env
, struct llog_ctxt
*ctxt
, int cmd
,
284 struct obd_ioctl_data
*data
)
286 struct llog_logid logid
;
288 struct llog_handle
*handle
= NULL
;
292 if (*data
->ioc_inlbuf1
== '#') {
293 rc
= str2logid(&logid
, data
->ioc_inlbuf1
, data
->ioc_inllen1
);
296 rc
= llog_open(env
, ctxt
, &handle
, &logid
, NULL
,
300 } else if (*data
->ioc_inlbuf1
== '$') {
301 char *name
= data
->ioc_inlbuf1
+ 1;
303 rc
= llog_open(env
, ctxt
, &handle
, NULL
, name
,
311 rc
= llog_init_handle(env
, handle
, 0, NULL
);
313 GOTO(out_close
, rc
= -ENOENT
);
316 case OBD_IOC_LLOG_INFO
: {
318 int remains
= data
->ioc_inllen2
+
319 cfs_size_round(data
->ioc_inllen1
);
320 char *out
= data
->ioc_bulk
;
322 l
= snprintf(out
, remains
,
323 "logid: #"DOSTID
"#%08x\n"
325 "records count: %d\n"
327 POSTID(&handle
->lgh_id
.lgl_oi
),
328 handle
->lgh_id
.lgl_ogen
,
329 handle
->lgh_hdr
->llh_flags
,
330 handle
->lgh_hdr
->llh_flags
&
331 LLOG_F_IS_CAT
? "cat" : "plain",
332 handle
->lgh_hdr
->llh_count
,
333 handle
->lgh_last_idx
);
337 CERROR("%s: not enough space for log header info\n",
338 ctxt
->loc_obd
->obd_name
);
343 case OBD_IOC_LLOG_CHECK
:
344 LASSERT(data
->ioc_inllen1
> 0);
345 rc
= llog_process(env
, handle
, llog_check_cb
, data
, NULL
);
346 if (rc
== -LLOG_EEMPTY
)
351 case OBD_IOC_LLOG_PRINT
:
352 LASSERT(data
->ioc_inllen1
> 0);
353 rc
= llog_process(env
, handle
, llog_print_cb
, data
, NULL
);
354 if (rc
== -LLOG_EEMPTY
)
359 case OBD_IOC_LLOG_CANCEL
: {
360 struct llog_cookie cookie
;
361 struct llog_logid plain
;
364 cookie
.lgc_index
= simple_strtoul(data
->ioc_inlbuf3
, &endp
, 0);
366 GOTO(out_close
, rc
= -EINVAL
);
368 if (handle
->lgh_hdr
->llh_flags
& LLOG_F_IS_PLAIN
) {
369 rc
= llog_cancel_rec(NULL
, handle
, cookie
.lgc_index
);
371 } else if (!(handle
->lgh_hdr
->llh_flags
& LLOG_F_IS_CAT
)) {
372 GOTO(out_close
, rc
= -EINVAL
);
375 if (data
->ioc_inlbuf2
== NULL
) /* catalog but no logid */
376 GOTO(out_close
, rc
= -ENOTTY
);
378 rc
= str2logid(&plain
, data
->ioc_inlbuf2
, data
->ioc_inllen2
);
381 cookie
.lgc_lgl
= plain
;
382 rc
= llog_cat_cancel_records(env
, handle
, 1, &cookie
);
387 case OBD_IOC_LLOG_REMOVE
: {
388 struct llog_logid plain
;
390 if (handle
->lgh_hdr
->llh_flags
& LLOG_F_IS_PLAIN
) {
391 rc
= llog_destroy(env
, handle
);
393 } else if (!(handle
->lgh_hdr
->llh_flags
& LLOG_F_IS_CAT
)) {
394 GOTO(out_close
, rc
= -EINVAL
);
397 if (data
->ioc_inlbuf2
> 0) {
398 /* remove indicate log from the catalog */
399 rc
= str2logid(&plain
, data
->ioc_inlbuf2
,
403 rc
= llog_remove_log(env
, handle
, &plain
);
405 /* remove all the log of the catalog */
406 rc
= llog_process(env
, handle
, llog_delete_cb
, NULL
,
414 CERROR("%s: Unknown ioctl cmd %#x\n",
415 ctxt
->loc_obd
->obd_name
, cmd
);
416 GOTO(out_close
, rc
= -ENOTTY
);
420 if (handle
->lgh_hdr
&&
421 handle
->lgh_hdr
->llh_flags
& LLOG_F_IS_CAT
)
422 llog_cat_close(env
, handle
);
424 llog_close(env
, handle
);
427 EXPORT_SYMBOL(llog_ioctl
);
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