static int seq_handler(struct tgt_session_info *tsi) { struct lu_seq_range *out, *tmp; struct lu_site *site; int rc; __u32 *opc; ENTRY; LASSERT(!(lustre_msg_get_flags(tgt_ses_req(tsi)->rq_reqmsg) & MSG_REPLAY)); site = tsi->tsi_exp->exp_obd->obd_lu_dev->ld_site; LASSERT(site != NULL); opc = req_capsule_client_get(tsi->tsi_pill, &RMF_SEQ_OPC); if (opc != NULL) { out = req_capsule_server_get(tsi->tsi_pill, &RMF_SEQ_RANGE); if (out == NULL) RETURN(err_serious(-EPROTO)); tmp = req_capsule_client_get(tsi->tsi_pill, &RMF_SEQ_RANGE); /* seq client passed mdt id, we need to pass that using out * range parameter */ out->lsr_index = tmp->lsr_index; out->lsr_flags = tmp->lsr_flags; rc = seq_server_handle(site, tsi->tsi_env, *opc, out); } else { rc = err_serious(-EPROTO); } RETURN(rc); }
int mdt_init_idmap(struct tgt_session_info *tsi) { struct ptlrpc_request *req = tgt_ses_req(tsi); struct mdt_export_data *med = mdt_req2med(req); struct obd_export *exp = req->rq_export; char *client = libcfs_nid2str(req->rq_peer.nid); int rc = 0; ENTRY; if (exp_connect_rmtclient(exp)) { mutex_lock(&med->med_idmap_mutex); if (!med->med_idmap) med->med_idmap = lustre_idmap_init(); mutex_unlock(&med->med_idmap_mutex); if (IS_ERR(med->med_idmap)) { long err = PTR_ERR(med->med_idmap); med->med_idmap = NULL; CERROR("%s: client %s -> target %s " "failed to init idmap [%ld]!\n", tgt_name(tsi->tsi_tgt), client, tgt_name(tsi->tsi_tgt), err); RETURN(err); } else if (!med->med_idmap) { CERROR("%s: client %s -> target %s " "failed to init(2) idmap!\n", tgt_name(tsi->tsi_tgt), client, tgt_name(tsi->tsi_tgt)); RETURN(-ENOMEM); } CDEBUG(D_SEC, "%s: client %s -> target %s is remote.\n", tgt_name(tsi->tsi_tgt), client, tgt_name(tsi->tsi_tgt)); /* NB, MDS_CONNECT establish root idmap too! */ rc = mdt_handle_idmap(tsi); } RETURN(rc); }
/** * Object updates between Targets. Because all the updates has been * dis-assemblied into object updates at sender side, so OUT will * call OSD API directly to execute these updates. * * In DNE phase I all of the updates in the request need to be executed * in one transaction, and the transaction has to be synchronously. * * Please refer to lustre/include/lustre/lustre_idl.h for req/reply * format. */ int out_handle(struct tgt_session_info *tsi) { const struct lu_env *env = tsi->tsi_env; struct tgt_thread_info *tti = tgt_th_info(env); struct thandle_exec_args *ta = &tti->tti_tea; struct req_capsule *pill = tsi->tsi_pill; struct dt_device *dt = tsi->tsi_tgt->lut_bottom; struct update_buf *ubuf; struct update *update; struct update_reply *update_reply; int bufsize; int count; int old_batchid = -1; unsigned off; int i; int rc = 0; int rc1 = 0; ENTRY; req_capsule_set(pill, &RQF_UPDATE_OBJ); bufsize = req_capsule_get_size(pill, &RMF_UPDATE, RCL_CLIENT); if (bufsize != UPDATE_BUFFER_SIZE) { CERROR("%s: invalid bufsize %d: rc = %d\n", tgt_name(tsi->tsi_tgt), bufsize, -EPROTO); RETURN(err_serious(-EPROTO)); } ubuf = req_capsule_client_get(pill, &RMF_UPDATE); if (ubuf == NULL) { CERROR("%s: No buf!: rc = %d\n", tgt_name(tsi->tsi_tgt), -EPROTO); RETURN(err_serious(-EPROTO)); } if (le32_to_cpu(ubuf->ub_magic) != UPDATE_BUFFER_MAGIC) { CERROR("%s: invalid magic %x expect %x: rc = %d\n", tgt_name(tsi->tsi_tgt), le32_to_cpu(ubuf->ub_magic), UPDATE_BUFFER_MAGIC, -EPROTO); RETURN(err_serious(-EPROTO)); } count = le32_to_cpu(ubuf->ub_count); if (count <= 0) { CERROR("%s: No update!: rc = %d\n", tgt_name(tsi->tsi_tgt), -EPROTO); RETURN(err_serious(-EPROTO)); } req_capsule_set_size(pill, &RMF_UPDATE_REPLY, RCL_SERVER, UPDATE_BUFFER_SIZE); rc = req_capsule_server_pack(pill); if (rc != 0) { CERROR("%s: Can't pack response: rc = %d\n", tgt_name(tsi->tsi_tgt), rc); RETURN(rc); } /* Prepare the update reply buffer */ update_reply = req_capsule_server_get(pill, &RMF_UPDATE_REPLY); if (update_reply == NULL) RETURN(err_serious(-EPROTO)); update_init_reply_buf(update_reply, count); tti->tti_u.update.tti_update_reply = update_reply; rc = out_tx_start(env, dt, ta); if (rc != 0) RETURN(rc); tti->tti_mult_trans = !req_is_replay(tgt_ses_req(tsi)); /* Walk through updates in the request to execute them synchronously */ off = cfs_size_round(offsetof(struct update_buf, ub_bufs[0])); for (i = 0; i < count; i++) { struct tgt_handler *h; struct dt_object *dt_obj; update = (struct update *)((char *)ubuf + off); if (old_batchid == -1) { old_batchid = update->u_batchid; } else if (old_batchid != update->u_batchid) { /* Stop the current update transaction, * create a new one */ rc = out_tx_end(env, ta); if (rc != 0) RETURN(rc); rc = out_tx_start(env, dt, ta); if (rc != 0) RETURN(rc); old_batchid = update->u_batchid; } fid_le_to_cpu(&update->u_fid, &update->u_fid); if (!fid_is_sane(&update->u_fid)) { CERROR("%s: invalid FID "DFID": rc = %d\n", tgt_name(tsi->tsi_tgt), PFID(&update->u_fid), -EPROTO); GOTO(out, rc = err_serious(-EPROTO)); } dt_obj = dt_locate(env, dt, &update->u_fid); if (IS_ERR(dt_obj)) GOTO(out, rc = PTR_ERR(dt_obj)); tti->tti_u.update.tti_dt_object = dt_obj; tti->tti_u.update.tti_update = update; tti->tti_u.update.tti_update_reply_index = i; h = out_handler_find(update->u_type); if (likely(h != NULL)) { /* For real modification RPC, check if the update * has been executed */ if (h->th_flags & MUTABOR) { struct ptlrpc_request *req = tgt_ses_req(tsi); if (out_check_resent(env, dt, dt_obj, req, out_reconstruct, update_reply, i)) GOTO(next, rc); } rc = h->th_act(tsi); } else { CERROR("%s: The unsupported opc: 0x%x\n", tgt_name(tsi->tsi_tgt), update->u_type); lu_object_put(env, &dt_obj->do_lu); GOTO(out, rc = -ENOTSUPP); } next: lu_object_put(env, &dt_obj->do_lu); if (rc < 0) GOTO(out, rc); off += cfs_size_round(update_size(update)); } out: rc1 = out_tx_end(env, ta); if (rc == 0) rc = rc1; RETURN(rc); }
/** * Prepare bulk IO requests for processing. * * This function does initial checks of IO and calls corresponding * functions for read/write processing. * * \param[in] env execution environment * \param[in] cmd IO type (read/write) * \param[in] exp OBD export of client * \param[in] oa OBDO structure from request * \param[in] objcount always 1 * \param[in] obj object data * \param[in] rnb remote buffers * \param[in] nr_local number of local buffers * \param[in] lnb local buffers * * \retval 0 on successful prepare * \retval negative value on error */ int ofd_preprw(const struct lu_env *env, int cmd, struct obd_export *exp, struct obdo *oa, int objcount, struct obd_ioobj *obj, struct niobuf_remote *rnb, int *nr_local, struct niobuf_local *lnb) { struct tgt_session_info *tsi = tgt_ses_info(env); struct ofd_device *ofd = ofd_exp(exp); struct ofd_thread_info *info; char *jobid; const struct lu_fid *fid = &oa->o_oi.oi_fid; int rc = 0; if (*nr_local > PTLRPC_MAX_BRW_PAGES) { CERROR("%s: bulk has too many pages %d, which exceeds the" "maximum pages per RPC of %d\n", exp->exp_obd->obd_name, *nr_local, PTLRPC_MAX_BRW_PAGES); RETURN(-EPROTO); } if (tgt_ses_req(tsi) == NULL) { /* echo client case */ info = ofd_info_init(env, exp); jobid = NULL; } else { info = tsi2ofd_info(tsi); jobid = tsi->tsi_jobid; } LASSERT(oa != NULL); if (OBD_FAIL_CHECK(OBD_FAIL_SRV_ENOENT)) { struct ofd_seq *oseq; oseq = ofd_seq_load(env, ofd, ostid_seq(&oa->o_oi)); if (IS_ERR(oseq)) { CERROR("%s: Can not find seq for "DOSTID ": rc = %ld\n", ofd_name(ofd), POSTID(&oa->o_oi), PTR_ERR(oseq)); RETURN(-EINVAL); } if (oseq->os_destroys_in_progress == 0) { /* don't fail lookups for orphan recovery, it causes * later LBUGs when objects still exist during * precreate */ ofd_seq_put(env, oseq); RETURN(-ENOENT); } ofd_seq_put(env, oseq); } LASSERT(objcount == 1); LASSERT(obj->ioo_bufcnt > 0); if (cmd == OBD_BRW_WRITE) { la_from_obdo(&info->fti_attr, oa, OBD_MD_FLGETATTR); rc = ofd_preprw_write(env, exp, ofd, fid, &info->fti_attr, oa, objcount, obj, rnb, nr_local, lnb, jobid); } else if (cmd == OBD_BRW_READ) { ofd_grant_prepare_read(env, exp, oa); rc = ofd_preprw_read(env, exp, ofd, fid, &info->fti_attr, oa, obj->ioo_bufcnt, rnb, nr_local, lnb, jobid); obdo_from_la(oa, &info->fti_attr, LA_ATIME); } else { CERROR("%s: wrong cmd %d received!\n", exp->exp_obd->obd_name, cmd); rc = -EPROTO; } RETURN(rc); }
/** * Object updates between Targets. Because all the updates has been * dis-assemblied into object updates at sender side, so OUT will * call OSD API directly to execute these updates. * * In DNE phase I all of the updates in the request need to be executed * in one transaction, and the transaction has to be synchronously. * * Please refer to lustre/include/lustre/lustre_idl.h for req/reply * format. */ int out_handle(struct tgt_session_info *tsi) { const struct lu_env *env = tsi->tsi_env; struct tgt_thread_info *tti = tgt_th_info(env); struct thandle_exec_args *ta = &tti->tti_tea; struct req_capsule *pill = tsi->tsi_pill; struct dt_device *dt = tsi->tsi_tgt->lut_bottom; struct out_update_header *ouh; struct out_update_buffer *oub = NULL; struct object_update *update; struct object_update_reply *reply; struct ptlrpc_bulk_desc *desc = NULL; struct l_wait_info lwi; void **update_bufs; int current_batchid = -1; __u32 update_buf_count; unsigned int i; unsigned int reply_index = 0; int rc = 0; int rc1 = 0; int ouh_size, reply_size; int updates; ENTRY; req_capsule_set(pill, &RQF_OUT_UPDATE); ouh_size = req_capsule_get_size(pill, &RMF_OUT_UPDATE_HEADER, RCL_CLIENT); if (ouh_size <= 0) RETURN(err_serious(-EPROTO)); ouh = req_capsule_client_get(pill, &RMF_OUT_UPDATE_HEADER); if (ouh == NULL) RETURN(err_serious(-EPROTO)); if (ouh->ouh_magic != OUT_UPDATE_HEADER_MAGIC) { CERROR("%s: invalid update buffer magic %x expect %x: " "rc = %d\n", tgt_name(tsi->tsi_tgt), ouh->ouh_magic, UPDATE_REQUEST_MAGIC, -EPROTO); RETURN(err_serious(-EPROTO)); } update_buf_count = ouh->ouh_count; if (update_buf_count == 0) RETURN(err_serious(-EPROTO)); OBD_ALLOC(update_bufs, sizeof(*update_bufs) * update_buf_count); if (update_bufs == NULL) RETURN(err_serious(-ENOMEM)); if (ouh->ouh_inline_length > 0) { update_bufs[0] = ouh->ouh_inline_data; } else { struct out_update_buffer *tmp; oub = req_capsule_client_get(pill, &RMF_OUT_UPDATE_BUF); if (oub == NULL) GOTO(out_free, rc = err_serious(-EPROTO)); desc = ptlrpc_prep_bulk_exp(pill->rc_req, update_buf_count, PTLRPC_BULK_OPS_COUNT, PTLRPC_BULK_GET_SINK | PTLRPC_BULK_BUF_KVEC, MDS_BULK_PORTAL, &ptlrpc_bulk_kvec_ops); if (desc == NULL) GOTO(out_free, rc = err_serious(-ENOMEM)); tmp = oub; for (i = 0; i < update_buf_count; i++, tmp++) { if (tmp->oub_size >= OUT_MAXREQSIZE) GOTO(out_free, rc = err_serious(-EPROTO)); OBD_ALLOC(update_bufs[i], tmp->oub_size); if (update_bufs[i] == NULL) GOTO(out_free, rc = err_serious(-ENOMEM)); desc->bd_frag_ops->add_iov_frag(desc, update_bufs[i], tmp->oub_size); } pill->rc_req->rq_bulk_write = 1; rc = sptlrpc_svc_prep_bulk(pill->rc_req, desc); if (rc != 0) GOTO(out_free, rc = err_serious(rc)); rc = target_bulk_io(pill->rc_req->rq_export, desc, &lwi); if (rc < 0) GOTO(out_free, rc = err_serious(rc)); } /* validate the request and calculate the total update count and * set it to reply */ reply_size = 0; updates = 0; for (i = 0; i < update_buf_count; i++) { struct object_update_request *our; int j; our = update_bufs[i]; if (ptlrpc_req_need_swab(pill->rc_req)) lustre_swab_object_update_request(our); if (our->ourq_magic != UPDATE_REQUEST_MAGIC) { CERROR("%s: invalid update buffer magic %x" " expect %x: rc = %d\n", tgt_name(tsi->tsi_tgt), our->ourq_magic, UPDATE_REQUEST_MAGIC, -EPROTO); GOTO(out_free, rc = err_serious(-EPROTO)); } updates += our->ourq_count; /* need to calculate reply size */ for (j = 0; j < our->ourq_count; j++) { update = object_update_request_get(our, j, NULL); if (update == NULL) GOTO(out, rc = err_serious(-EPROTO)); if (ptlrpc_req_need_swab(pill->rc_req)) lustre_swab_object_update(update); if (!fid_is_sane(&update->ou_fid)) { CERROR("%s: invalid FID "DFID": rc = %d\n", tgt_name(tsi->tsi_tgt), PFID(&update->ou_fid), -EPROTO); GOTO(out, rc = err_serious(-EPROTO)); } /* XXX: what ou_result_size can be considered safe? */ reply_size += sizeof(reply->ourp_lens[0]); reply_size += sizeof(struct object_update_result); reply_size += update->ou_result_size; } } reply_size += sizeof(*reply); if (unlikely(reply_size > ouh->ouh_reply_size)) { CERROR("%s: too small reply buf %u for %u, need %u at least\n", tgt_name(tsi->tsi_tgt), ouh->ouh_reply_size, updates, reply_size); GOTO(out_free, rc = err_serious(-EPROTO)); } req_capsule_set_size(pill, &RMF_OUT_UPDATE_REPLY, RCL_SERVER, ouh->ouh_reply_size); rc = req_capsule_server_pack(pill); if (rc != 0) { CERROR("%s: Can't pack response: rc = %d\n", tgt_name(tsi->tsi_tgt), rc); GOTO(out_free, rc = err_serious(-EPROTO)); } /* Prepare the update reply buffer */ reply = req_capsule_server_get(pill, &RMF_OUT_UPDATE_REPLY); if (reply == NULL) GOTO(out_free, rc = -EPROTO); reply->ourp_magic = UPDATE_REPLY_MAGIC; reply->ourp_count = updates; tti->tti_u.update.tti_update_reply = reply; tti->tti_mult_trans = !req_is_replay(tgt_ses_req(tsi)); /* Walk through updates in the request to execute them */ for (i = 0; i < update_buf_count; i++) { struct tgt_handler *h; struct dt_object *dt_obj; int update_count; struct object_update_request *our; int j; our = update_bufs[i]; update_count = our->ourq_count; for (j = 0; j < update_count; j++) { update = object_update_request_get(our, j, NULL); dt_obj = dt_locate(env, dt, &update->ou_fid); if (IS_ERR(dt_obj)) GOTO(out, rc = PTR_ERR(dt_obj)); if (dt->dd_record_fid_accessed) { lfsck_pack_rfa(&tti->tti_lr, lu_object_fid(&dt_obj->do_lu), LE_FID_ACCESSED, LFSCK_TYPE_LAYOUT); tgt_lfsck_in_notify(env, dt, &tti->tti_lr, NULL); } tti->tti_u.update.tti_dt_object = dt_obj; tti->tti_u.update.tti_update = update; tti->tti_u.update.tti_update_reply_index = reply_index; h = out_handler_find(update->ou_type); if (unlikely(h == NULL)) { CERROR("%s: unsupported opc: 0x%x\n", tgt_name(tsi->tsi_tgt), update->ou_type); GOTO(next, rc = -ENOTSUPP); } /* Check resend case only for modifying RPC */ if (h->th_flags & MUTABOR) { struct ptlrpc_request *req = tgt_ses_req(tsi); if (out_check_resent(env, dt, dt_obj, req, out_reconstruct, reply, reply_index)) GOTO(next, rc = 0); } /* start transaction for modification RPC only */ if (h->th_flags & MUTABOR && current_batchid == -1) { current_batchid = update->ou_batchid; rc = out_tx_start(env, dt, ta, tsi->tsi_exp); if (rc != 0) GOTO(next, rc); if (update->ou_flags & UPDATE_FL_SYNC) ta->ta_handle->th_sync = 1; } /* Stop the current update transaction, if the update * has different batchid, or read-only update */ if (((current_batchid != update->ou_batchid) || !(h->th_flags & MUTABOR)) && ta->ta_handle != NULL) { rc = out_tx_end(env, ta, rc); current_batchid = -1; if (rc != 0) GOTO(next, rc); /* start a new transaction if needed */ if (h->th_flags & MUTABOR) { rc = out_tx_start(env, dt, ta, tsi->tsi_exp); if (rc != 0) GOTO(next, rc); if (update->ou_flags & UPDATE_FL_SYNC) ta->ta_handle->th_sync = 1; current_batchid = update->ou_batchid; } } rc = h->th_act(tsi); next: reply_index++; lu_object_put(env, &dt_obj->do_lu); if (rc < 0) GOTO(out, rc); } } out: if (current_batchid != -1) { rc1 = out_tx_end(env, ta, rc); if (rc == 0) rc = rc1; } out_free: if (update_bufs != NULL) { if (oub != NULL) { for (i = 0; i < update_buf_count; i++, oub++) { if (update_bufs[i] != NULL) OBD_FREE(update_bufs[i], oub->oub_size); } } OBD_FREE(update_bufs, sizeof(*update_bufs) * update_buf_count); } if (desc != NULL) ptlrpc_free_bulk(desc); RETURN(rc); }
/** * Object updates between Targets. Because all the updates has been * dis-assemblied into object updates at sender side, so OUT will * call OSD API directly to execute these updates. * * In DNE phase I all of the updates in the request need to be executed * in one transaction, and the transaction has to be synchronously. * * Please refer to lustre/include/lustre/lustre_idl.h for req/reply * format. */ int out_handle(struct tgt_session_info *tsi) { const struct lu_env *env = tsi->tsi_env; struct tgt_thread_info *tti = tgt_th_info(env); struct thandle_exec_args *ta = &tti->tti_tea; struct req_capsule *pill = tsi->tsi_pill; struct dt_device *dt = tsi->tsi_tgt->lut_bottom; struct object_update_request *ureq; struct object_update *update; struct object_update_reply *reply; int bufsize; int count; int old_batchid = -1; int i; int rc = 0; int rc1 = 0; ENTRY; req_capsule_set(pill, &RQF_OUT_UPDATE); ureq = req_capsule_client_get(pill, &RMF_OUT_UPDATE); if (ureq == NULL) { CERROR("%s: No buf!: rc = %d\n", tgt_name(tsi->tsi_tgt), -EPROTO); RETURN(err_serious(-EPROTO)); } bufsize = req_capsule_get_size(pill, &RMF_OUT_UPDATE, RCL_CLIENT); if (bufsize != object_update_request_size(ureq)) { CERROR("%s: invalid bufsize %d: rc = %d\n", tgt_name(tsi->tsi_tgt), bufsize, -EPROTO); RETURN(err_serious(-EPROTO)); } if (ureq->ourq_magic != UPDATE_REQUEST_MAGIC) { CERROR("%s: invalid update buffer magic %x expect %x: " "rc = %d\n", tgt_name(tsi->tsi_tgt), ureq->ourq_magic, UPDATE_REQUEST_MAGIC, -EPROTO); RETURN(err_serious(-EPROTO)); } count = ureq->ourq_count; if (count <= 0) { CERROR("%s: empty update: rc = %d\n", tgt_name(tsi->tsi_tgt), -EPROTO); RETURN(err_serious(-EPROTO)); } req_capsule_set_size(pill, &RMF_OUT_UPDATE_REPLY, RCL_SERVER, OUT_UPDATE_REPLY_SIZE); rc = req_capsule_server_pack(pill); if (rc != 0) { CERROR("%s: Can't pack response: rc = %d\n", tgt_name(tsi->tsi_tgt), rc); RETURN(rc); } /* Prepare the update reply buffer */ reply = req_capsule_server_get(pill, &RMF_OUT_UPDATE_REPLY); if (reply == NULL) RETURN(err_serious(-EPROTO)); object_update_reply_init(reply, count); tti->tti_u.update.tti_update_reply = reply; rc = out_tx_start(env, dt, ta, tsi->tsi_exp); if (rc != 0) RETURN(rc); tti->tti_mult_trans = !req_is_replay(tgt_ses_req(tsi)); /* Walk through updates in the request to execute them synchronously */ for (i = 0; i < count; i++) { struct tgt_handler *h; struct dt_object *dt_obj; update = object_update_request_get(ureq, i, NULL); if (update == NULL) GOTO(out, rc = -EPROTO); if (ptlrpc_req_need_swab(pill->rc_req)) lustre_swab_object_update(update); if (old_batchid == -1) { old_batchid = update->ou_batchid; } else if (old_batchid != update->ou_batchid) { /* Stop the current update transaction, * create a new one */ rc = out_tx_end(env, ta); if (rc < 0) RETURN(rc); rc = out_tx_start(env, dt, ta, tsi->tsi_exp); if (rc != 0) RETURN(rc); old_batchid = update->ou_batchid; } if (!fid_is_sane(&update->ou_fid)) { CERROR("%s: invalid FID "DFID": rc = %d\n", tgt_name(tsi->tsi_tgt), PFID(&update->ou_fid), -EPROTO); GOTO(out, rc = err_serious(-EPROTO)); } dt_obj = dt_locate(env, dt, &update->ou_fid); if (IS_ERR(dt_obj)) GOTO(out, rc = PTR_ERR(dt_obj)); if (dt->dd_record_fid_accessed) { lfsck_pack_rfa(&tti->tti_lr, lu_object_fid(&dt_obj->do_lu)); tgt_lfsck_in_notify(env, dt, &tti->tti_lr); } tti->tti_u.update.tti_dt_object = dt_obj; tti->tti_u.update.tti_update = update; tti->tti_u.update.tti_update_reply_index = i; h = out_handler_find(update->ou_type); if (likely(h != NULL)) { /* For real modification RPC, check if the update * has been executed */ if (h->th_flags & MUTABOR) { struct ptlrpc_request *req = tgt_ses_req(tsi); if (out_check_resent(env, dt, dt_obj, req, out_reconstruct, reply, i)) GOTO(next, rc); } rc = h->th_act(tsi); } else { CERROR("%s: The unsupported opc: 0x%x\n", tgt_name(tsi->tsi_tgt), update->ou_type); lu_object_put(env, &dt_obj->do_lu); GOTO(out, rc = -ENOTSUPP); } next: lu_object_put(env, &dt_obj->do_lu); if (rc < 0) GOTO(out, rc); } out: rc1 = out_tx_end(env, ta); if (rc == 0) rc = rc1; RETURN(rc); }
int mdt_handle_idmap(struct tgt_session_info *tsi) { struct ptlrpc_request *req = tgt_ses_req(tsi); struct mdt_device *mdt = mdt_exp2dev(req->rq_export); struct mdt_export_data *med; struct ptlrpc_user_desc *pud = req->rq_user_desc; struct md_identity *identity; __u32 opc; int rc = 0; ENTRY; if (!req->rq_export) RETURN(0); med = mdt_req2med(req); if (!exp_connect_rmtclient(req->rq_export)) RETURN(0); opc = lustre_msg_get_opc(req->rq_reqmsg); /* Bypass other opc */ if ((opc != SEC_CTX_INIT) && (opc != SEC_CTX_INIT_CONT) && (opc != SEC_CTX_FINI) && (opc != MDS_CONNECT)) RETURN(0); LASSERT(med->med_idmap); if (unlikely(!pud)) { CDEBUG(D_SEC, "remote client must run with rq_user_desc " "present\n"); RETURN(-EACCES); } if (!uid_valid(make_kuid(&init_user_ns, req->rq_auth_mapped_uid))) { CDEBUG(D_SEC, "invalid authorized mapped uid, please check " "/etc/lustre/idmap.conf!\n"); RETURN(-EACCES); } if (is_identity_get_disabled(mdt->mdt_identity_cache)) { CDEBUG(D_SEC, "remote client must run with identity_get " "enabled!\n"); RETURN(-EACCES); } identity = mdt_identity_get(mdt->mdt_identity_cache, req->rq_auth_mapped_uid); if (IS_ERR(identity)) { CDEBUG(D_SEC, "can't get mdt identity(%u), no mapping added\n", req->rq_auth_mapped_uid); RETURN(-EACCES); } switch (opc) { case SEC_CTX_INIT: case SEC_CTX_INIT_CONT: case MDS_CONNECT: rc = lustre_idmap_add(med->med_idmap, pud->pud_uid, identity->mi_uid, pud->pud_gid, identity->mi_gid); break; case SEC_CTX_FINI: rc = lustre_idmap_del(med->med_idmap, pud->pud_uid, identity->mi_uid, pud->pud_gid, identity->mi_gid); break; } mdt_identity_put(mdt->mdt_identity_cache, identity); if (rc) RETURN(rc); switch (opc) { case SEC_CTX_INIT: case SEC_CTX_INIT_CONT: case SEC_CTX_FINI: mdt_revoke_export_locks(req->rq_export); break; } RETURN(0); }