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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.
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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_ioctl.h>
41 #include <lustre_log.h>
42 #include "llog_internal.h"
44 static int str2logid(struct llog_logid *logid, char *str, int len)
46 char *start, *end, *endp;
55 if (start - str >= len - 1)
57 end = strchr(start, '#');
58 if (end == NULL || end == start)
62 id = simple_strtoull(start, &endp, 0);
67 if (start - str >= len - 1)
69 end = strchr(start, '#');
70 if (end == NULL || end == start)
74 seq = simple_strtoull(start, &endp, 0);
78 ostid_set_seq(&logid->lgl_oi, seq);
79 ostid_set_id(&logid->lgl_oi, id);
82 if (start - str >= len - 1)
84 logid->lgl_ogen = simple_strtoul(start, &endp, 16);
91 static int llog_check_cb(const struct lu_env *env, struct llog_handle *handle,
92 struct llog_rec_hdr *rec, void *data)
94 struct obd_ioctl_data *ioc_data = (struct obd_ioctl_data *)data;
95 static int l, remains;
99 int cur_index, rc = 0;
103 if (ioc_data && ioc_data->ioc_inllen1 > 0) {
105 remains = ioc_data->ioc_inllen4 +
106 cfs_size_round(ioc_data->ioc_inllen1) +
107 cfs_size_round(ioc_data->ioc_inllen2) +
108 cfs_size_round(ioc_data->ioc_inllen3);
109 from = simple_strtol(ioc_data->ioc_inlbuf2, &endp, 0);
112 to = simple_strtol(ioc_data->ioc_inlbuf3, &endp, 0);
115 ioc_data->ioc_inllen1 = 0;
116 out = ioc_data->ioc_bulk;
119 cur_index = rec->lrh_index;
120 if (cur_index < from)
122 if (to > 0 && cur_index > to)
123 RETURN(-LLOG_EEMPTY);
125 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT) {
126 struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
127 struct llog_handle *loghandle;
129 if (rec->lrh_type != LLOG_LOGID_MAGIC) {
130 l = snprintf(out, remains, "[index]: %05d [type]: "
131 "%02x [len]: %04d failed\n",
132 cur_index, rec->lrh_type,
135 if (handle->lgh_ctxt == NULL)
137 rc = llog_cat_id2handle(env, handle, &loghandle, &lir->lid_id);
139 CDEBUG(D_IOCTL, "cannot find log #"DOSTID"#%08x\n",
140 POSTID(&lir->lid_id.lgl_oi),
141 lir->lid_id.lgl_ogen);
144 rc = llog_process(env, loghandle, llog_check_cb, NULL, NULL);
145 llog_handle_put(loghandle);
149 switch (rec->lrh_type) {
152 case MDS_UNLINK64_REC:
153 case MDS_SETATTR64_REC:
163 l = snprintf(out, remains, "[index]: %05d [type]: "
164 "%02x [len]: %04d %s\n",
165 cur_index, rec->lrh_type, rec->lrh_len,
166 ok ? "ok" : "failed");
170 CERROR("%s: no space to print log records\n",
171 handle->lgh_ctxt->loc_obd->obd_name);
172 RETURN(-LLOG_EEMPTY);
178 static int llog_print_cb(const struct lu_env *env, struct llog_handle *handle,
179 struct llog_rec_hdr *rec, void *data)
181 struct obd_ioctl_data *ioc_data = (struct obd_ioctl_data *)data;
182 static int l, remains;
183 static long from, to;
189 if (ioc_data != NULL && ioc_data->ioc_inllen1 > 0) {
191 remains = ioc_data->ioc_inllen4 +
192 cfs_size_round(ioc_data->ioc_inllen1) +
193 cfs_size_round(ioc_data->ioc_inllen2) +
194 cfs_size_round(ioc_data->ioc_inllen3);
195 from = simple_strtol(ioc_data->ioc_inlbuf2, &endp, 0);
198 to = simple_strtol(ioc_data->ioc_inlbuf3, &endp, 0);
201 out = ioc_data->ioc_bulk;
202 ioc_data->ioc_inllen1 = 0;
205 cur_index = rec->lrh_index;
206 if (cur_index < from)
208 if (to > 0 && cur_index > to)
209 RETURN(-LLOG_EEMPTY);
211 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT) {
212 struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
214 if (rec->lrh_type != LLOG_LOGID_MAGIC) {
215 CERROR("invalid record in catalog\n");
219 l = snprintf(out, remains,
220 "[index]: %05d [logid]: #"DOSTID"#%08x\n",
221 cur_index, POSTID(&lir->lid_id.lgl_oi),
222 lir->lid_id.lgl_ogen);
223 } else if (rec->lrh_type == OBD_CFG_REC) {
226 rc = class_config_yaml_output(rec, out, remains);
231 l = snprintf(out, remains,
232 "[index]: %05d [type]: %02x [len]: %04d\n",
233 cur_index, rec->lrh_type, rec->lrh_len);
238 CERROR("not enough space for print log records\n");
239 RETURN(-LLOG_EEMPTY);
244 static int llog_remove_log(const struct lu_env *env, struct llog_handle *cat,
245 struct llog_logid *logid)
247 struct llog_handle *log;
252 rc = llog_cat_id2handle(env, cat, &log, logid);
254 CDEBUG(D_IOCTL, "cannot find log #"DOSTID"#%08x\n",
255 POSTID(&logid->lgl_oi), logid->lgl_ogen);
259 rc = llog_destroy(env, log);
261 CDEBUG(D_IOCTL, "cannot destroy log\n");
264 llog_cat_cleanup(env, cat, log, log->u.phd.phd_cookie.lgc_index);
266 llog_handle_put(log);
271 static int llog_delete_cb(const struct lu_env *env, struct llog_handle *handle,
272 struct llog_rec_hdr *rec, void *data)
274 struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
278 if (rec->lrh_type != LLOG_LOGID_MAGIC)
280 rc = llog_remove_log(env, handle, &lir->lid_id);
286 int llog_ioctl(const struct lu_env *env, struct llog_ctxt *ctxt, int cmd,
287 struct obd_ioctl_data *data)
289 struct llog_logid logid;
291 struct llog_handle *handle = NULL;
295 if (*data->ioc_inlbuf1 == '#') {
296 rc = str2logid(&logid, data->ioc_inlbuf1, data->ioc_inllen1);
299 rc = llog_open(env, ctxt, &handle, &logid, NULL,
303 } else if (*data->ioc_inlbuf1 == '$') {
304 char *name = data->ioc_inlbuf1 + 1;
306 rc = llog_open(env, ctxt, &handle, NULL, name,
314 rc = llog_init_handle(env, handle, 0, NULL);
316 GOTO(out_close, rc = -ENOENT);
319 case OBD_IOC_LLOG_INFO: {
321 int remains = data->ioc_inllen2 +
322 cfs_size_round(data->ioc_inllen1);
323 char *out = data->ioc_bulk;
325 l = snprintf(out, remains,
326 "logid: #"DOSTID"#%08x\n"
328 "records count: %d\n"
330 POSTID(&handle->lgh_id.lgl_oi),
331 handle->lgh_id.lgl_ogen,
332 handle->lgh_hdr->llh_flags,
333 handle->lgh_hdr->llh_flags &
334 LLOG_F_IS_CAT ? "cat" : "plain",
335 handle->lgh_hdr->llh_count,
336 handle->lgh_last_idx);
340 CERROR("%s: not enough space for log header info\n",
341 ctxt->loc_obd->obd_name);
346 case OBD_IOC_LLOG_CHECK:
347 LASSERT(data->ioc_inllen1 > 0);
348 rc = llog_process(env, handle, llog_check_cb, data, NULL);
349 if (rc == -LLOG_EEMPTY)
354 case OBD_IOC_LLOG_PRINT:
355 LASSERT(data->ioc_inllen1 > 0);
356 rc = llog_process(env, handle, llog_print_cb, data, NULL);
357 if (rc == -LLOG_EEMPTY)
362 case OBD_IOC_LLOG_CANCEL: {
363 struct llog_cookie cookie;
364 struct llog_logid plain;
367 cookie.lgc_index = simple_strtoul(data->ioc_inlbuf3, &endp, 0);
369 GOTO(out_close, rc = -EINVAL);
371 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN) {
372 rc = llog_cancel_rec(env, handle, cookie.lgc_index);
374 } else if (!(handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)) {
375 GOTO(out_close, rc = -EINVAL);
378 if (data->ioc_inlbuf2 == NULL) /* catalog but no logid */
379 GOTO(out_close, rc = -ENOTTY);
381 rc = str2logid(&plain, data->ioc_inlbuf2, data->ioc_inllen2);
384 cookie.lgc_lgl = plain;
385 rc = llog_cat_cancel_records(env, handle, 1, &cookie);
390 case OBD_IOC_LLOG_REMOVE: {
391 struct llog_logid plain;
393 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN) {
394 rc = llog_destroy(env, handle);
396 } else if (!(handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)) {
397 GOTO(out_close, rc = -EINVAL);
400 if (data->ioc_inlbuf2 > 0) {
401 /* remove indicate log from the catalog */
402 rc = str2logid(&plain, data->ioc_inlbuf2,
406 rc = llog_remove_log(env, handle, &plain);
408 /* remove all the log of the catalog */
409 rc = llog_process(env, handle, llog_delete_cb, NULL,
417 CERROR("%s: Unknown ioctl cmd %#x\n",
418 ctxt->loc_obd->obd_name, cmd);
419 GOTO(out_close, rc = -ENOTTY);
423 if (handle->lgh_hdr &&
424 handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)
425 llog_cat_close(env, handle);
427 llog_close(env, handle);
430 EXPORT_SYMBOL(llog_ioctl);
432 int llog_catalog_list(const struct lu_env *env, struct dt_device *d,
433 int count, struct obd_ioctl_data *data,
434 const struct lu_fid *fid)
437 struct llog_catid *idarray;
438 struct llog_logid *id;
440 int l, remains, rc = 0;
444 if (count == 0) { /* get total number of logs */
445 rc = llog_osd_get_cat_list(env, d, 0, 0, NULL, fid);
451 size = sizeof(*idarray) * count;
453 OBD_ALLOC_LARGE(idarray, size);
457 rc = llog_osd_get_cat_list(env, d, 0, count, idarray, fid);
461 out = data->ioc_bulk;
462 remains = data->ioc_inllen1;
463 for (i = 0; i < count; i++) {
464 id = &idarray[i].lci_logid;
465 l = snprintf(out, remains,
466 "catalog log: #"DOSTID"#%08x\n",
475 OBD_FREE_LARGE(idarray, size);
478 EXPORT_SYMBOL(llog_catalog_list);