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move handling CATALOGS file at osc layer and forbid access to llog
[fs/lustre-release.git] / lustre / obdclass / llog_ioctl.c
index 03279f8..8d57e18 100644 (file)
@@ -1,9 +1,37 @@
 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
  * vim:expandtab:shiftwidth=8:tabstop=8:
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Lustre; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
  */
 
 #define DEBUG_SUBSYSTEM S_LOG
 #define EXPORT_SYMTAB
 #endif
 
-#include <linux/fs.h>
-#include <linux/obd_class.h>
-#include <linux/lustre_log.h>
-#include <portals/list.h>
+#include <obd_class.h>
+#include <lustre_log.h>
+#include <libcfs/list.h>
 #include "llog_internal.h"
 
 static int str2logid(struct llog_logid *logid, char *str, int len)
 {
         char *start, *end, *endp;
-        
+
+        ENTRY;
         start = str;
         if (*start != '#')
                 RETURN(-EINVAL);
-        
+
         start++;
         if (start - str >= len - 1)
                 RETURN(-EINVAL);
@@ -34,7 +62,7 @@ static int str2logid(struct llog_logid *logid, char *str, int len)
                 RETURN(-EINVAL);
 
         *end = '\0';
-        logid->lgl_oid = simple_strtoull(start, &endp, 16); 
+        logid->lgl_oid = simple_strtoull(start, &endp, 0);
         if (endp != end)
                 RETURN(-EINVAL);
 
@@ -46,7 +74,7 @@ static int str2logid(struct llog_logid *logid, char *str, int len)
                 RETURN(-EINVAL);
 
         *end = '\0';
-        logid->lgl_ogr = simple_strtoull(start, &endp, 16);
+        logid->lgl_ogr = simple_strtoull(start, &endp, 0);
         if (endp != end)
                 RETURN(-EINVAL);
 
@@ -60,7 +88,98 @@ static int str2logid(struct llog_logid *logid, char *str, int len)
         RETURN(0);
 }
 
-static int llog_print_cb(struct llog_handle *handle, struct llog_rec_hdr *rec, 
+static int llog_check_cb(struct llog_handle *handle, struct llog_rec_hdr *rec,
+                         void *data)
+{
+        struct obd_ioctl_data *ioc_data = (struct obd_ioctl_data *)data;
+        static int l, remains, from, to;
+        static char *out;
+        char *endp;
+        int cur_index, rc = 0;
+
+        ENTRY;
+        cur_index = rec->lrh_index;
+
+        if (ioc_data && (ioc_data->ioc_inllen1)) {
+                l = 0;
+                remains = ioc_data->ioc_inllen4 +
+                        size_round(ioc_data->ioc_inllen1) +
+                        size_round(ioc_data->ioc_inllen2) +
+                        size_round(ioc_data->ioc_inllen3);
+                from = simple_strtol(ioc_data->ioc_inlbuf2, &endp, 0);
+                if (*endp != '\0')
+                        RETURN(-EINVAL);
+                to = simple_strtol(ioc_data->ioc_inlbuf3, &endp, 0);
+                if (*endp != '\0')
+                        RETURN(-EINVAL);
+                ioc_data->ioc_inllen1 = 0;
+                out = ioc_data->ioc_bulk;
+                if (cur_index < from)
+                        RETURN(0);
+                if (to > 0 && cur_index > to)
+                        RETURN(-LLOG_EEMPTY);
+        }
+        if (handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT) {
+                struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
+                struct llog_handle *log_handle;
+
+                if (rec->lrh_type != LLOG_LOGID_MAGIC) {
+                        l = snprintf(out, remains, "[index]: %05d  [type]: "
+                                     "%02x  [len]: %04d failed\n",
+                                     cur_index, rec->lrh_type,
+                                     rec->lrh_len);
+                }
+                if (handle->lgh_ctxt == NULL)
+                        RETURN(-EOPNOTSUPP);
+                rc = llog_cat_id2handle(handle, &log_handle, &lir->lid_id);
+                if (rc) {
+                        CDEBUG(D_IOCTL,
+                               "cannot find log #"LPX64"#"LPX64"#%08x\n",
+                               lir->lid_id.lgl_oid, lir->lid_id.lgl_ogr,
+                               lir->lid_id.lgl_ogen);
+                        RETURN(rc);
+                }
+                rc = llog_process(log_handle, llog_check_cb, NULL, NULL);
+                llog_close(log_handle);
+        } else {
+                switch (rec->lrh_type) {
+                case OST_SZ_REC:
+                case OST_RAID1_REC:
+                case MDS_UNLINK_REC:
+                case MDS_SETATTR_REC:
+                case OBD_CFG_REC:
+                case LLOG_HDR_MAGIC: {
+                         l = snprintf(out, remains, "[index]: %05d  [type]: "
+                                      "%02x  [len]: %04d ok\n",
+                                      cur_index, rec->lrh_type,
+                                      rec->lrh_len);
+                         out += l;
+                         remains -= l;
+                         if (remains <= 0) {
+                                CERROR("no space to print log records\n");
+                                RETURN(-LLOG_EEMPTY);
+                         }
+                         RETURN(0);
+                }
+                default: {
+                         l = snprintf(out, remains, "[index]: %05d  [type]: "
+                                      "%02x  [len]: %04d failed\n",
+                                      cur_index, rec->lrh_type,
+                                      rec->lrh_len);
+                         out += l;
+                         remains -= l;
+                         if (remains <= 0) {
+                                CERROR("no space to print log records\n");
+                                RETURN(-LLOG_EEMPTY);
+                         }
+                         RETURN(0);
+                }
+                }
+        }
+        RETURN(rc);
+}
+
+static int llog_print_cb(struct llog_handle *handle, struct llog_rec_hdr *rec,
                          void *data)
 {
         struct obd_ioctl_data *ioc_data = (struct obd_ioctl_data *)data;
@@ -68,10 +187,11 @@ static int llog_print_cb(struct llog_handle *handle, struct llog_rec_hdr *rec,
         static char *out;
         char *endp;
         int cur_index;
-        
+
+        ENTRY;
         if (ioc_data->ioc_inllen1) {
                 l = 0;
-                remains = ioc_data->ioc_inllen4 + 
+                remains = ioc_data->ioc_inllen4 +
                         size_round(ioc_data->ioc_inllen1) +
                         size_round(ioc_data->ioc_inllen2) +
                         size_round(ioc_data->ioc_inllen3);
@@ -85,28 +205,28 @@ static int llog_print_cb(struct llog_handle *handle, struct llog_rec_hdr *rec,
                 ioc_data->ioc_inllen1 = 0;
         }
 
-        cur_index = le32_to_cpu(rec->lrh_index);
+        cur_index = rec->lrh_index;
         if (cur_index < from)
                 RETURN(0);
         if (to > 0 && cur_index > to)
                 RETURN(-LLOG_EEMPTY);
 
-        if (le32_to_cpu(handle->lgh_hdr->llh_flags) & LLOG_F_IS_CAT) {
+        if (handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT) {
                 struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
-                if (le32_to_cpu(rec->lrh_type) != LLOG_LOGID_MAGIC) {
+                if (rec->lrh_type != LLOG_LOGID_MAGIC) {
                         CERROR("invalid record in catalog\n");
                         RETURN(-EINVAL);
                 }
 
                 l = snprintf(out, remains,
-                             "[index]: %05d  [logid]: #%llx#%llx#%08x\n",
-                             cur_index, lir->lid_id.lgl_oid, 
+                             "[index]: %05d  [logid]: #"LPX64"#"LPX64"#%08x\n",
+                             cur_index, lir->lid_id.lgl_oid,
                              lir->lid_id.lgl_ogr, lir->lid_id.lgl_ogen);
         } else {
                 l = snprintf(out, remains,
-                             "[index]: %05d  [type]: %02x  [len]: %04d\n", 
-                             cur_index, le32_to_cpu(rec->lrh_type),
-                             le32_to_cpu(rec->lrh_len));
+                             "[index]: %05d  [type]: %02x  [len]: %04d\n",
+                             cur_index, rec->lrh_type,
+                             rec->lrh_len);
         }
         out += l;
         remains -= l;
@@ -117,20 +237,20 @@ static int llog_print_cb(struct llog_handle *handle, struct llog_rec_hdr *rec,
 
         RETURN(0);
 }
-
 static int llog_remove_log(struct llog_handle *cat, struct llog_logid *logid)
 {
         struct llog_handle *log;
         int rc, index = 0;
-        
+
+        ENTRY;
         down_write(&cat->lgh_lock);
         rc = llog_cat_id2handle(cat, &log, logid);
         if (rc) {
-                CDEBUG(D_IOCTL, "cannot find log #%0llx#%0llx#%08x\n",
+                CDEBUG(D_IOCTL, "cannot find log #"LPX64"#"LPX64"#%08x\n",
                        logid->lgl_oid, logid->lgl_ogr, logid->lgl_ogen);
                 GOTO(out, rc = -ENOENT);
         }
-        
+
         index = log->u.phd.phd_cookie.lgc_index;
         LASSERT(index);
         rc = llog_destroy(log);
@@ -138,26 +258,44 @@ static int llog_remove_log(struct llog_handle *cat, struct llog_logid *logid)
                 CDEBUG(D_IOCTL, "cannot destroy log\n");
                 GOTO(out, rc);
         }
+        llog_cat_set_first_idx(cat, index);
         rc = llog_cancel_rec(cat, index);
 out:
+        llog_free_handle(log);
         up_write(&cat->lgh_lock);
         RETURN(rc);
 
 }
 
+static int llog_delete_cb(struct llog_handle *handle, struct llog_rec_hdr *rec,
+                          void *data)
+{
+        struct  llog_logid_rec *lir = (struct llog_logid_rec*)rec;
+        int     rc;
+
+        ENTRY;
+        if (rec->lrh_type != LLOG_LOGID_MAGIC)
+              RETURN (-EINVAL);
+        rc = llog_remove_log(handle, &lir->lid_id);
+
+        RETURN(rc);
+}
+
+
 int llog_ioctl(struct llog_ctxt *ctxt, int cmd, struct obd_ioctl_data *data)
 {
         struct llog_logid logid;
         int err = 0;
         struct llog_handle *handle = NULL;
+
+        ENTRY;
         if (*data->ioc_inlbuf1 == '#') {
                 err = str2logid(&logid, data->ioc_inlbuf1, data->ioc_inllen1);
                 if (err)
                         GOTO(out, err);
                 err = llog_create(ctxt, &handle, &logid, NULL);
                 if (err)
-                        GOTO(out, err);        
+                        GOTO(out, err);
         } else if (*data->ioc_inlbuf1 == '$') {
                 char *name = data->ioc_inlbuf1 + 1;
                 err = llog_create(ctxt, &handle, NULL, name);
@@ -168,40 +306,50 @@ int llog_ioctl(struct llog_ctxt *ctxt, int cmd, struct obd_ioctl_data *data)
         }
 
         err = llog_init_handle(handle, 0, NULL);
-        if (err) 
+        if (err)
                 GOTO(out_close, err = -ENOENT);
-       
+
         switch (cmd) {
         case OBD_IOC_LLOG_INFO: {
                 int l;
-                int remains = data->ioc_inllen2 + 
+                int remains = data->ioc_inllen2 +
                         size_round(data->ioc_inllen1);
                 char *out = data->ioc_bulk;
 
-                l = snprintf(out, remains, 
-                             "logid:            #%llx#%llx#%08x\n"
+                l = snprintf(out, remains,
+                             "logid:            #"LPX64"#"LPX64"#%08x\n"
                              "flags:            %x (%s)\n"
                              "records count:    %d\n"
                              "last index:       %d\n",
                              handle->lgh_id.lgl_oid, handle->lgh_id.lgl_ogr,
                              handle->lgh_id.lgl_ogen,
-                             le32_to_cpu(handle->lgh_hdr->llh_flags),
-                             le32_to_cpu(handle->lgh_hdr->llh_flags) & 
+                             handle->lgh_hdr->llh_flags,
+                             handle->lgh_hdr->llh_flags &
                              LLOG_F_IS_CAT ? "cat" : "plain",
-                             le32_to_cpu(handle->lgh_hdr->llh_count),
+                             handle->lgh_hdr->llh_count,
                              handle->lgh_last_idx);
                 out += l;
                 remains -= l;
-                if (remains <= 0) 
+                if (remains <= 0)
                         CERROR("not enough space for log header info\n");
 
                 GOTO(out_close, err);
         }
+        case OBD_IOC_LLOG_CHECK: {
+                LASSERT(data->ioc_inllen1);
+                err = llog_process(handle, llog_check_cb, data, NULL);
+                if (err == -LLOG_EEMPTY)
+                        err = 0;
+                GOTO(out_close, err);
+        }
+
         case OBD_IOC_LLOG_PRINT: {
                 LASSERT(data->ioc_inllen1);
-                err = llog_process(handle, llog_print_cb, data);
+                err = llog_process(handle, class_config_dump_handler,data,NULL);
                 if (err == -LLOG_EEMPTY)
                         err = 0;
+                else
+                        err = llog_process(handle, llog_print_cb, data, NULL);
 
                 GOTO(out_close, err);
         }
@@ -209,17 +357,24 @@ int llog_ioctl(struct llog_ctxt *ctxt, int cmd, struct obd_ioctl_data *data)
                 struct llog_cookie cookie;
                 struct llog_logid plain;
                 char *endp;
-                
-                if (!le32_to_cpu(handle->lgh_hdr->llh_flags) & LLOG_F_IS_CAT)
+
+                cookie.lgc_index = simple_strtoul(data->ioc_inlbuf3, &endp, 0);
+                if (*endp != '\0')
                         GOTO(out_close, err = -EINVAL);
-        
+
+                if (handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT) {
+                        down_write(&handle->lgh_lock);
+                        err = llog_cancel_rec(handle, cookie.lgc_index);
+                        up_write(&handle->lgh_lock);
+                        GOTO(out_close, err);
+                }
+
                 err = str2logid(&plain, data->ioc_inlbuf2, data->ioc_inllen2);
                 if (err)
                         GOTO(out_close, err);
                 cookie.lgc_lgl = plain;
-                cookie.lgc_index = simple_strtoul(data->ioc_inlbuf3, 
-                                                  &endp, 0);
-                if (*endp != '\0')
+
+                if (!(handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT))
                         GOTO(out_close, err = -EINVAL);
 
                 err = llog_cat_cancel_records(handle, 1, &cookie);
@@ -227,21 +382,35 @@ int llog_ioctl(struct llog_ctxt *ctxt, int cmd, struct obd_ioctl_data *data)
         }
         case OBD_IOC_LLOG_REMOVE: {
                 struct llog_logid plain;
-                
-                if (!le32_to_cpu(handle->lgh_hdr->llh_flags) & LLOG_F_IS_CAT)
+
+                if (handle->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN) {
+                        err = llog_destroy(handle);
+                        if (!err)
+                                llog_free_handle(handle);
+                        GOTO(out, err);
+                }
+
+                if (!(handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT))
                         GOTO(out_close, err = -EINVAL);
-        
-                err = str2logid(&plain, data->ioc_inlbuf2, data->ioc_inllen2);
-                if (err)
-                        GOTO(out_close, err);
-                err = llog_remove_log(handle, &plain);
+
+                if (data->ioc_inlbuf2) {
+                        /*remove indicate log from the catalog*/
+                        err = str2logid(&plain, data->ioc_inlbuf2,
+                                        data->ioc_inllen2);
+                        if (err)
+                                GOTO(out_close, err);
+                        err = llog_remove_log(handle, &plain);
+                } else {
+                        /*remove all the log of the catalog*/
+                        llog_process(handle, llog_delete_cb, NULL, NULL);
+                }
                 GOTO(out_close, err);
         }
         }
-        
+
 out_close:
-        if (handle->lgh_hdr && 
-            le32_to_cpu(handle->lgh_hdr->llh_flags) & LLOG_F_IS_CAT)
+        if (handle->lgh_hdr &&
+            handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)
                 llog_cat_put(handle);
         else
                 llog_close(handle);
@@ -250,36 +419,35 @@ out:
 }
 EXPORT_SYMBOL(llog_ioctl);
 
-int llog_catlog_list(struct obd_device *obd, int count, 
-                     struct obd_ioctl_data *data)
+int llog_catalog_list(struct obd_device *obd, int count,
+                      struct obd_ioctl_data *data)
 {
         int size, i;
-        struct llog_logid *idarray, *id;
-        char name[32] = "CATLIST";
+        struct llog_catid *idarray;
+        struct llog_logid *id;
+        char name[32] = CATLIST;
         char *out;
         int l, remains, rc = 0;
-        
+
+        ENTRY;
         size = sizeof(*idarray) * count;
-        
-        OBD_ALLOC(idarray, size);
+
+        OBD_VMALLOC(idarray, size);
         if (!idarray)
                 RETURN(-ENOMEM);
-        memset(idarray, 0, size);
-        
-        rc = llog_get_cat_list(obd, obd, name, count, idarray);
-        if (rc) {
-                OBD_FREE(idarray, size);
-                RETURN(rc);
-        }
-        
+
+        mutex_down(&obd->obd_olg.olg_cat_processing);
+        rc = llog_get_cat_list(obd, name, 0, count, idarray);
+        if (rc)
+                GOTO(out, rc);
+
         out = data->ioc_bulk;
         remains = data->ioc_inllen1;
-        id = idarray;
         for (i = 0; i < count; i++) {
-                l = snprintf(out, remains, 
-                             "catalog log: #%llx#%llx#%08x\n",
+                id = &idarray[i].lci_logid;
+                l = snprintf(out, remains,
+                             "catalog log: #"LPX64"#"LPX64"#%08x\n",
                              id->lgl_oid, id->lgl_ogr, id->lgl_ogen);
-                id++;
                 out += l;
                 remains -= l;
                 if (remains <= 0) {
@@ -287,8 +455,12 @@ int llog_catlog_list(struct obd_device *obd, int count,
                         break;
                 }
         }
-        OBD_FREE(idarray, size);
-        RETURN(0);
+out:
+        /* release semaphore */
+        mutex_up(&obd->obd_olg.olg_cat_processing);
+
+        OBD_VFREE(idarray, size);
+        RETURN(rc);
 
 }
-EXPORT_SYMBOL(llog_catlog_list);
+EXPORT_SYMBOL(llog_catalog_list);