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14 * in the LICENSE file that accompanied this code).
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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_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);