--- /dev/null
+/*
+ * 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 (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/ofd/ofd_capa.c
+ *
+ * Author: Lai Siyao <laisiyao@whamcloud.com>
+ */
+
+#define DEBUG_SUBSYSTEM S_FILTER
+
+#include "ofd_internal.h"
+
+static inline __u32 ofd_ck_keyid(struct filter_capa_key *key)
+{
+ return key->k_key.lk_keyid;
+}
+
+int ofd_update_capa_key(struct ofd_device *ofd, struct lustre_capa_key *new)
+{
+ struct obd_device *obd = ofd_obd(ofd);
+ struct filter_capa_key *k, *keys[2] = { NULL, NULL };
+ int i;
+
+ cfs_spin_lock(&capa_lock);
+ cfs_list_for_each_entry(k, &obd->u.filter.fo_capa_keys, k_list) {
+ if (k->k_key.lk_seq != new->lk_seq)
+ continue;
+
+ if (keys[0]) {
+ keys[1] = k;
+ if (ofd_ck_keyid(keys[1]) > ofd_ck_keyid(keys[0]))
+ keys[1] = keys[0], keys[0] = k;
+ } else {
+ keys[0] = k;
+ }
+ }
+ cfs_spin_unlock(&capa_lock);
+
+ for (i = 0; i < 2; i++) {
+ if (!keys[i])
+ continue;
+ if (ofd_ck_keyid(keys[i]) != new->lk_keyid)
+ continue;
+ /* maybe because of recovery or other reasons, MDS sent the
+ * the old capability key again.
+ */
+ cfs_spin_lock(&capa_lock);
+ keys[i]->k_key = *new;
+ cfs_spin_unlock(&capa_lock);
+
+ RETURN(0);
+ }
+
+ if (keys[1]) {
+ /* if OSS already have two keys, update the old one */
+ k = keys[1];
+ } else {
+ OBD_ALLOC_PTR(k);
+ if (!k)
+ RETURN(-ENOMEM);
+ CFS_INIT_LIST_HEAD(&k->k_list);
+ }
+
+ cfs_spin_lock(&capa_lock);
+ k->k_key = *new;
+ if (cfs_list_empty(&k->k_list))
+ cfs_list_add(&k->k_list, &obd->u.filter.fo_capa_keys);
+ cfs_spin_unlock(&capa_lock);
+
+ DEBUG_CAPA_KEY(D_SEC, new, "new");
+ RETURN(0);
+}
+
+int ofd_auth_capa(struct obd_export *exp, struct lu_fid *fid, obd_seq seq,
+ struct lustre_capa *capa, __u64 opc)
+{
+ struct filter_obd *filter = &exp->exp_obd->u.filter;
+ struct filter_capa_key *k;
+ struct lustre_capa_key key;
+ struct obd_capa *oc;
+ __u8 *hmac;
+ int keys_ready = 0, key_found = 0, rc = 0;
+
+ ENTRY;
+
+ /* skip capa check for llog and obdecho */
+ if (!fid_seq_is_mdt(seq))
+ RETURN(0);
+
+ /* capability is disabled */
+ if (!filter->fo_fl_oss_capa)
+ RETURN(0);
+
+ if (!(exp->exp_connect_flags & OBD_CONNECT_OSS_CAPA))
+ RETURN(0);
+
+ if (capa == NULL) {
+ if (fid)
+ CERROR("seq/fid/opc "LPU64"/"DFID"/"LPX64
+ ": no capability has been passed\n",
+ seq, PFID(fid), opc);
+ else
+ CERROR("seq/opc "LPU64"/"LPX64
+ ": no capability has been passed\n",
+ seq, opc);
+ RETURN(-EACCES);
+ }
+
+ if (opc == CAPA_OPC_OSS_READ) {
+ if (!(capa->lc_opc & CAPA_OPC_OSS_RW))
+ rc = -EACCES;
+ } else if (!capa_opc_supported(capa, opc)) {
+ rc = -EACCES;
+ }
+
+ if (rc) {
+ DEBUG_CAPA(D_ERROR, capa, "opc "LPX64" not supported by", opc);
+ RETURN(rc);
+ }
+
+ oc = capa_lookup(filter->fo_capa_hash, capa, 0);
+ if (oc) {
+ cfs_spin_lock(&oc->c_lock);
+ if (capa_is_expired(oc)) {
+ DEBUG_CAPA(D_ERROR, capa, "expired");
+ rc = -ESTALE;
+ }
+ cfs_spin_unlock(&oc->c_lock);
+
+ capa_put(oc);
+ RETURN(rc);
+ }
+
+ if (capa_is_expired_sec(capa)) {
+ DEBUG_CAPA(D_ERROR, capa, "expired");
+ RETURN(-ESTALE);
+ }
+
+ cfs_spin_lock(&capa_lock);
+ cfs_list_for_each_entry(k, &filter->fo_capa_keys, k_list) {
+ if (k->k_key.lk_seq == seq) {
+ keys_ready = 1;
+ if (k->k_key.lk_keyid == capa_keyid(capa)) {
+ key = k->k_key;
+ key_found = 1;
+ break;
+ }
+ }
+ }
+ cfs_spin_unlock(&capa_lock);
+
+ if (!keys_ready) {
+ CDEBUG(D_SEC, "MDS hasn't propagated capability keys yet, "
+ "ignore check!\n");
+ RETURN(0);
+ }
+
+ if (!key_found) {
+ DEBUG_CAPA(D_ERROR, capa, "no matched capability key for");
+ RETURN(-ESTALE);
+ }
+
+ OBD_ALLOC(hmac, CAPA_HMAC_MAX_LEN);
+ if (hmac == NULL)
+ RETURN(-ENOMEM);
+
+ rc = capa_hmac(hmac, capa, key.lk_key);
+ if (rc) {
+ DEBUG_CAPA(D_ERROR, capa, "HMAC failed: rc %d", rc);
+ OBD_FREE(hmac, CAPA_HMAC_MAX_LEN);
+ RETURN(rc);
+ }
+
+ rc = memcmp(hmac, capa->lc_hmac, CAPA_HMAC_MAX_LEN);
+ OBD_FREE(hmac, CAPA_HMAC_MAX_LEN);
+ if (rc) {
+ DEBUG_CAPA_KEY(D_ERROR, &key, "calculate HMAC with ");
+ DEBUG_CAPA(D_ERROR, capa, "HMAC mismatch");
+ RETURN(-EACCES);
+ }
+
+ /* store in capa hash */
+ oc = capa_add(filter->fo_capa_hash, capa);
+ capa_put(oc);
+ RETURN(0);
+}
+
+void ofd_free_capa_keys(struct ofd_device *ofd)
+{
+ struct obd_device *obd = ofd_obd(ofd);
+ struct filter_capa_key *key, *n;
+
+ cfs_spin_lock(&capa_lock);
+ cfs_list_for_each_entry_safe(key, n, &obd->u.filter.fo_capa_keys, k_list) {
+ cfs_list_del_init(&key->k_list);
+ OBD_FREE_PTR(key);
+ }
+ cfs_spin_unlock(&capa_lock);
+}
struct obd_export *exp,
struct obd_connect_data *data)
{
- struct ofd_device *ofd = ofd_exp(exp);
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct filter_export_data *fed = &exp->exp_filter_data;
if (!data)
RETURN(0);
data->ocd_connect_flags, data->ocd_version,
data->ocd_grant, data->ocd_index);
+ if (fed->fed_group != 0 && fed->fed_group != data->ocd_group) {
+ CWARN("!!! This export (nid %s) used object group %d "
+ "earlier; now it's trying to use group %d! This could "
+ "be a bug in the MDS. Please report to "
+ "http://bugs.whamcloud.com/\n",
+ obd_export_nid2str(exp), fed->fed_group,
+ data->ocd_group);
+ RETURN(-EPROTO);
+ }
+ fed->fed_group = data->ocd_group;
+
data->ocd_connect_flags &= OST_CONNECT_SUPPORTED;
exp->exp_connect_flags = data->ocd_connect_flags;
data->ocd_version = LUSTRE_VERSION_CODE;
RETURN(rc);
}
+static int ofd_set_mds_conn(struct obd_export *exp, void *val)
+{
+ int rc = 0;
+
+ ENTRY;
+
+ LCONSOLE_WARN("%s: received MDS connection from %s\n",
+ exp->exp_obd->obd_name, obd_export_nid2str(exp));
+ RETURN(rc);
+}
+
+static int ofd_set_info_async(const struct lu_env *env, struct obd_export *exp,
+ __u32 keylen, void *key, __u32 vallen, void *val,
+ struct ptlrpc_request_set *set)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+ int rc = 0;
+
+ ENTRY;
+
+ if (exp->exp_obd == NULL) {
+ CDEBUG(D_IOCTL, "invalid export %p\n", exp);
+ RETURN(-EINVAL);
+ }
+
+ if (KEY_IS(KEY_CAPA_KEY)) {
+ rc = ofd_update_capa_key(ofd, val);
+ if (rc)
+ CERROR("ofd update capability key failed: %d\n", rc);
+ } else if (KEY_IS(KEY_MDS_CONN)) {
+ rc = ofd_set_mds_conn(exp, val);
+ } else {
+ CERROR("%s: Unsupported key %s\n",
+ exp->exp_obd->obd_name, (char*)key);
+ rc = -EOPNOTSUPP;
+ }
+
+ RETURN(rc);
+}
+
+static int ofd_get_info(const struct lu_env *env, struct obd_export *exp,
+ __u32 keylen, void *key, __u32 *vallen, void *val,
+ struct lov_stripe_md *lsm)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+ int rc = 0;
+
+ ENTRY;
+
+ if (exp->exp_obd == NULL) {
+ CDEBUG(D_IOCTL, "invalid client export %p\n", exp);
+ RETURN(-EINVAL);
+ }
+
+ if (KEY_IS(KEY_BLOCKSIZE)) {
+ __u32 *blocksize = val;
+ if (blocksize) {
+ if (*vallen < sizeof(*blocksize))
+ RETURN(-EOVERFLOW);
+ *blocksize = 1 << ofd->ofd_dt_conf.ddp_block_shift;
+ }
+ *vallen = sizeof(*blocksize);
+ } else if (KEY_IS(KEY_BLOCKSIZE_BITS)) {
+ __u32 *blocksize_bits = val;
+ if (blocksize_bits) {
+ if (*vallen < sizeof(*blocksize_bits))
+ RETURN(-EOVERFLOW);
+ *blocksize_bits = ofd->ofd_dt_conf.ddp_block_shift;
+ }
+ *vallen = sizeof(*blocksize_bits);
+ } else if (KEY_IS(KEY_LAST_ID)) {
+ obd_id *last_id = val;
+ if (last_id) {
+ if (*vallen < sizeof(*last_id))
+ RETURN(-EOVERFLOW);
+ *last_id = ofd_last_id(ofd,
+ exp->exp_filter_data.fed_group);
+ }
+ *vallen = sizeof(*last_id);
+ } else {
+ CERROR("Not supported key %s\n", (char*)key);
+ rc = -EOPNOTSUPP;
+ }
+
+ RETURN(rc);
+}
+
+/** helper function for statfs, also used by grant code */
+int ofd_statfs_internal(const struct lu_env *env, struct ofd_device *ofd,
+ struct obd_statfs *osfs, __u64 max_age, int *from_cache)
+{
+ int rc;
+
+ rc = dt_statfs(env, ofd->ofd_osd, osfs);
+ if (unlikely(rc))
+ return rc;
+
+ return 0;
+}
+
+static int ofd_statfs(const struct lu_env *env, struct obd_export *exp,
+ struct obd_statfs *osfs, __u64 max_age, __u32 flags)
+{
+ struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev);
+ int rc;
+
+ ENTRY;
+
+ rc = ofd_statfs_internal(env, ofd, osfs, max_age, NULL);
+ if (unlikely(rc))
+ GOTO(out, rc);
+
+ if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOSPC,
+ ofd->ofd_lut.lut_lsd.lsd_ost_index))
+ osfs->os_bfree = osfs->os_bavail = 2;
+
+ if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOINO,
+ ofd->ofd_lut.lut_lsd.lsd_ost_index))
+ osfs->os_ffree = 0;
+ EXIT;
+out:
+ return rc;
+}
+
+static int ofd_sync(const struct lu_env *env, struct obd_export *exp,
+ struct obd_info *oinfo, obd_size start, obd_size end,
+ struct ptlrpc_request_set *set)
+{
+ struct ofd_device *ofd = ofd_exp(exp);
+ int rc = 0;
+
+ ENTRY;
+
+ /* if no objid is specified, it means "sync whole filesystem" */
+ if (oinfo->oi_oa == NULL || !(oinfo->oi_oa->o_valid & OBD_MD_FLID)) {
+ rc = dt_sync(env, ofd->ofd_osd);
+ GOTO(out, rc);
+ }
+
+ EXIT;
+out:
+ return rc;
+}
+
+int ofd_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
+ void *karg, void *uarg)
+{
+ struct lu_env env;
+ struct ofd_device *ofd = ofd_exp(exp);
+ struct obd_device *obd = ofd_obd(ofd);
+ int rc;
+
+ ENTRY;
+
+ CDEBUG(D_IOCTL, "handling ioctl cmd %#x\n", cmd);
+ rc = lu_env_init(&env, LCT_LOCAL);
+ if (rc)
+ RETURN(rc);
+
+ switch (cmd) {
+ case OBD_IOC_ABORT_RECOVERY:
+ CERROR("aborting recovery for device %s\n", obd->obd_name);
+ target_stop_recovery_thread(obd);
+ break;
+ case OBD_IOC_SYNC:
+ CDEBUG(D_RPCTRACE, "syncing ost %s\n", obd->obd_name);
+ rc = dt_sync(&env, ofd->ofd_osd);
+ break;
+ case OBD_IOC_SET_READONLY:
+ rc = dt_sync(&env, ofd->ofd_osd);
+ if (rc == 0)
+ rc = dt_ro(&env, ofd->ofd_osd);
+ break;
+ default:
+ CERROR("Not supported cmd = %d for device %s\n",
+ cmd, obd->obd_name);
+ rc = -ENOTTY;
+ }
+
+ lu_env_fini(&env);
+ RETURN(rc);
+}
+
+static int ofd_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
+{
+ int rc = 0;
+
+ ENTRY;
+
+ switch(stage) {
+ case OBD_CLEANUP_EARLY:
+ break;
+ case OBD_CLEANUP_EXPORTS:
+ target_cleanup_recovery(obd);
+ break;
+ }
+ RETURN(rc);
+}
+
+static int ofd_ping(const struct lu_env *env, struct obd_export *exp)
+{
+ return 0;
+}
+
+static int ofd_health_check(const struct lu_env *env, struct obd_device *obd)
+{
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ struct ofd_thread_info *info;
+#ifdef USE_HEALTH_CHECK_WRITE
+ struct thandle *th;
+#endif
+ int rc = 0;
+
+ info = ofd_info_init(env, NULL);
+ rc = dt_statfs(env, ofd->ofd_osd, &info->fti_u.osfs);
+ if (unlikely(rc))
+ GOTO(out, rc);
+
+ if (info->fti_u.osfs.os_state == OS_STATE_READONLY)
+ GOTO(out, rc = -EROFS);
+
+#ifdef USE_HEALTH_CHECK_WRITE
+ OBD_ALLOC(info->fti_buf.lb_buf, CFS_PAGE_SIZE);
+ if (info->fti_buf.lb_buf == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ info->fti_buf.lb_len = CFS_PAGE_SIZE;
+ info->fti_off = 0;
+
+ th = dt_trans_create(env, ofd->ofd_osd);
+ if (IS_ERR(th))
+ GOTO(out, rc = PTR_ERR(th));
+
+ rc = dt_declare_record_write(env, ofd->ofd_health_check_file,
+ info->fti_buf.lb_len, info->fti_off, th);
+ if (rc == 0) {
+ th->th_sync = 1; /* sync IO is needed */
+ rc = dt_trans_start_local(env, ofd->ofd_osd, th);
+ if (rc == 0)
+ rc = dt_record_write(env, ofd->ofd_health_check_file,
+ &info->fti_buf, &info->fti_off,
+ th);
+ }
+ dt_trans_stop(env, ofd->ofd_osd, th);
+
+ OBD_FREE(info->fti_buf.lb_buf, CFS_PAGE_SIZE);
+
+ CDEBUG(D_INFO, "write 1 page synchronously for checking io rc %d\n",rc);
+#endif
+out:
+ return !!rc;
+}
+
static int ofd_obd_notify(struct obd_device *obd, struct obd_device *unused,
enum obd_notify_event ev, void *data)
{
.o_connect = ofd_obd_connect,
.o_reconnect = ofd_obd_reconnect,
.o_disconnect = ofd_obd_disconnect,
+ .o_set_info_async = ofd_set_info_async,
+ .o_get_info = ofd_get_info,
+ .o_statfs = ofd_statfs,
.o_init_export = ofd_init_export,
.o_destroy_export = ofd_destroy_export,
.o_postrecov = ofd_obd_postrecov,
+ .o_sync = ofd_sync,
+ .o_iocontrol = ofd_iocontrol,
+ .o_precleanup = ofd_precleanup,
+ .o_ping = ofd_ping,
+ .o_health_check = ofd_health_check,
.o_notify = ofd_obd_notify,
};
git://git.whamcloud.com / fs / lustre-release.git / commitdiff