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13 * General Public License version 2 for more details (a copy is included
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;
98 int cur_index, rc = 0;
102 if (ioc_data && ioc_data->ioc_inllen1 > 0) {
104 remains = ioc_data->ioc_inllen4 +
105 cfs_size_round(ioc_data->ioc_inllen1) +
106 cfs_size_round(ioc_data->ioc_inllen2) +
107 cfs_size_round(ioc_data->ioc_inllen3);
108 from = simple_strtol(ioc_data->ioc_inlbuf2, &endp, 0);
111 to = simple_strtol(ioc_data->ioc_inlbuf3, &endp, 0);
114 ioc_data->ioc_inllen1 = 0;
115 out = ioc_data->ioc_bulk;
118 cur_index = rec->lrh_index;
119 if (cur_index < from)
121 if (to > 0 && cur_index > to)
122 RETURN(-LLOG_EEMPTY);
124 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT) {
125 struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
126 struct llog_handle *loghandle;
128 if (rec->lrh_type != LLOG_LOGID_MAGIC) {
129 l = snprintf(out, remains, "[index]: %05d [type]: "
130 "%02x [len]: %04d failed\n",
131 cur_index, rec->lrh_type,
134 if (handle->lgh_ctxt == NULL)
136 rc = llog_cat_id2handle(env, handle, &loghandle, &lir->lid_id);
138 CDEBUG(D_IOCTL, "cannot find log #"DOSTID"#%08x\n",
139 POSTID(&lir->lid_id.lgl_oi),
140 lir->lid_id.lgl_ogen);
143 rc = llog_process(env, loghandle, llog_check_cb, NULL, NULL);
144 llog_handle_put(loghandle);
148 switch (rec->lrh_type) {
151 case MDS_UNLINK64_REC:
152 case MDS_SETATTR64_REC:
162 l = snprintf(out, remains, "[index]: %05d [type]: "
163 "%02x [len]: %04d %s\n",
164 cur_index, rec->lrh_type, rec->lrh_len,
165 ok ? "ok" : "failed");
169 CERROR("%s: no space to print log records\n",
170 handle->lgh_ctxt->loc_obd->obd_name);
171 RETURN(-LLOG_EEMPTY);
177 static int llog_print_cb(const struct lu_env *env, struct llog_handle *handle,
178 struct llog_rec_hdr *rec, void *data)
180 struct obd_ioctl_data *ioc_data = (struct obd_ioctl_data *)data;
181 static int l, remains;
182 static long from, to;
188 if (ioc_data != NULL && ioc_data->ioc_inllen1 > 0) {
190 remains = ioc_data->ioc_inllen4 +
191 cfs_size_round(ioc_data->ioc_inllen1) +
192 cfs_size_round(ioc_data->ioc_inllen2) +
193 cfs_size_round(ioc_data->ioc_inllen3);
194 from = simple_strtol(ioc_data->ioc_inlbuf2, &endp, 0);
197 to = simple_strtol(ioc_data->ioc_inlbuf3, &endp, 0);
200 out = ioc_data->ioc_bulk;
201 ioc_data->ioc_inllen1 = 0;
204 cur_index = rec->lrh_index;
205 if (cur_index < from)
207 if (to > 0 && cur_index > to)
208 RETURN(-LLOG_EEMPTY);
210 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT) {
211 struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
213 if (rec->lrh_type != LLOG_LOGID_MAGIC) {
214 CERROR("invalid record in catalog\n");
218 l = snprintf(out, remains,
219 "[index]: %05d [logid]: #"DOSTID"#%08x\n",
220 cur_index, POSTID(&lir->lid_id.lgl_oi),
221 lir->lid_id.lgl_ogen);
222 } else if (rec->lrh_type == OBD_CFG_REC) {
225 rc = class_config_parse_rec(rec, out, remains);
230 l = snprintf(out, remains,
231 "[index]: %05d [type]: %02x [len]: %04d\n",
232 cur_index, rec->lrh_type, rec->lrh_len);
237 CERROR("not enough space for print log records\n");
238 RETURN(-LLOG_EEMPTY);
243 static int llog_remove_log(const struct lu_env *env, struct llog_handle *cat,
244 struct llog_logid *logid)
246 struct llog_handle *log;
251 rc = llog_cat_id2handle(env, cat, &log, logid);
253 CDEBUG(D_IOCTL, "cannot find log #"DOSTID"#%08x\n",
254 POSTID(&logid->lgl_oi), logid->lgl_ogen);
258 rc = llog_destroy(env, log);
260 CDEBUG(D_IOCTL, "cannot destroy log\n");
263 llog_cat_cleanup(env, cat, log, log->u.phd.phd_cookie.lgc_index);
265 llog_handle_put(log);
270 static int llog_delete_cb(const struct lu_env *env, struct llog_handle *handle,
271 struct llog_rec_hdr *rec, void *data)
273 struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
277 if (rec->lrh_type != LLOG_LOGID_MAGIC)
279 rc = llog_remove_log(env, handle, &lir->lid_id);
285 int llog_ioctl(const struct lu_env *env, struct llog_ctxt *ctxt, int cmd,
286 struct obd_ioctl_data *data)
288 struct llog_logid logid;
290 struct llog_handle *handle = NULL;
294 if (*data->ioc_inlbuf1 == '#') {
295 rc = str2logid(&logid, data->ioc_inlbuf1, data->ioc_inllen1);
298 rc = llog_open(env, ctxt, &handle, &logid, NULL,
302 } else if (*data->ioc_inlbuf1 == '$') {
303 char *name = data->ioc_inlbuf1 + 1;
305 rc = llog_open(env, ctxt, &handle, NULL, name,
313 rc = llog_init_handle(env, handle, 0, NULL);
315 GOTO(out_close, rc = -ENOENT);
318 case OBD_IOC_LLOG_INFO: {
320 int remains = data->ioc_inllen2 +
321 cfs_size_round(data->ioc_inllen1);
322 char *out = data->ioc_bulk;
324 l = snprintf(out, remains,
325 "logid: #"DOSTID"#%08x\n"
327 "records count: %d\n"
329 POSTID(&handle->lgh_id.lgl_oi),
330 handle->lgh_id.lgl_ogen,
331 handle->lgh_hdr->llh_flags,
332 handle->lgh_hdr->llh_flags &
333 LLOG_F_IS_CAT ? "cat" : "plain",
334 handle->lgh_hdr->llh_count,
335 handle->lgh_last_idx);
339 CERROR("%s: not enough space for log header info\n",
340 ctxt->loc_obd->obd_name);
345 case OBD_IOC_LLOG_CHECK:
346 LASSERT(data->ioc_inllen1 > 0);
347 rc = llog_process(env, handle, llog_check_cb, data, NULL);
348 if (rc == -LLOG_EEMPTY)
353 case OBD_IOC_LLOG_PRINT:
354 LASSERT(data->ioc_inllen1 > 0);
355 rc = llog_process(env, handle, llog_print_cb, data, NULL);
356 if (rc == -LLOG_EEMPTY)
361 case OBD_IOC_LLOG_CANCEL: {
362 struct llog_cookie cookie;
363 struct llog_logid plain;
366 cookie.lgc_index = simple_strtoul(data->ioc_inlbuf3, &endp, 0);
368 GOTO(out_close, rc = -EINVAL);
370 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN) {
371 rc = llog_cancel_rec(NULL, handle, cookie.lgc_index);
373 } else if (!(handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)) {
374 GOTO(out_close, rc = -EINVAL);
377 if (data->ioc_inlbuf2 == NULL) /* catalog but no logid */
378 GOTO(out_close, rc = -ENOTTY);
380 rc = str2logid(&plain, data->ioc_inlbuf2, data->ioc_inllen2);
383 cookie.lgc_lgl = plain;
384 rc = llog_cat_cancel_records(env, handle, 1, &cookie);
389 case OBD_IOC_LLOG_REMOVE: {
390 struct llog_logid plain;
392 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN) {
393 rc = llog_destroy(env, handle);
395 } else if (!(handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)) {
396 GOTO(out_close, rc = -EINVAL);
399 if (data->ioc_inlbuf2 > 0) {
400 /* remove indicate log from the catalog */
401 rc = str2logid(&plain, data->ioc_inlbuf2,
405 rc = llog_remove_log(env, handle, &plain);
407 /* remove all the log of the catalog */
408 rc = llog_process(env, handle, llog_delete_cb, NULL,
416 CERROR("%s: Unknown ioctl cmd %#x\n",
417 ctxt->loc_obd->obd_name, cmd);
418 GOTO(out_close, rc = -ENOTTY);
422 if (handle->lgh_hdr &&
423 handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)
424 llog_cat_close(env, handle);
426 llog_close(env, handle);
429 EXPORT_SYMBOL(llog_ioctl);