+++ /dev/null
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * lustre GS client
- * Copyright (c) 2001-2003 Cluster File Systems, Inc.
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre 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 for more details.
- *
- * 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.
- */
-
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
-#define DEBUG_SUBSYSTEM S_GSS
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/obd_class.h>
-#include <linux/lustre_gs.h>
-
-#include "gks_internal.h"
-
-static int gkc_get_key(struct obd_export *exp, struct key_parms *kparms,
- struct crypto_key *ckey, int op)
-{
- struct ptlrpc_request *req;
- struct crypto_key *rep_key;
- int rc, bufcount = 1, size[3] = {0, 0, 0};
- void *buf;
- ENTRY;
-
- size[0] = lustre_secdesc_size();
-
- size[bufcount++] = kparms->context_size;
- if (kparms->perm && kparms->perm_size > 0) {
- size[bufcount++] = kparms->perm_size;
- }
- req = ptlrpc_prep_req(class_exp2cliimp(exp), LUSTRE_GKS_VERSION,
- op, bufcount, size, NULL);
- if (req == NULL)
- RETURN(-ENOMEM);
-
- lustre_pack_secdesc(req, size[0]);
-
- buf = lustre_msg_buf(req->rq_reqmsg, 1, kparms->context_size);
- memcpy(buf, kparms->context, kparms->context_size);
-
- if (kparms->perm && kparms->perm_size) {
- buf = lustre_msg_buf(req->rq_reqmsg, 2, kparms->perm_size);
- memcpy(buf, kparms->perm, kparms->perm_size);
- }
-
- size[0] = sizeof(struct crypto_key);
- req->rq_replen = lustre_msg_size(1, size);
-
- rc = ptlrpc_queue_wait(req);
-
- rep_key = lustre_msg_buf(req->rq_repmsg, 0, sizeof(struct crypto_key));
-
- memcpy(ckey, rep_key, sizeof(*rep_key));
-
- CDEBUG(D_INFO, "get key %s, mac %s type %d\n", ckey->ck_key, ckey->ck_mac,
- ckey->ck_type);
- ptlrpc_req_finished(req);
-
- RETURN(rc);
-}
-
-static int gkc_set_info(struct obd_export *exp, obd_count keylen,
- void *key, obd_count vallen, void *val)
-{
- int rc = -EINVAL;
- if (keylen == strlen("async") && memcmp(key, "async", keylen) == 0) {
- struct client_obd *cl = &exp->exp_obd->u.cli;
- if (vallen != sizeof(int))
- RETURN(-EINVAL);
- cl->cl_async = *(int *)val;
- CDEBUG(D_HA, "%s: set async = %d\n",
- exp->exp_obd->obd_name, cl->cl_async);
- RETURN(0);
- }
- RETURN(rc);
-}
-
-static int gkc_get_info(struct obd_export *exp, __u32 keylen,
- void *key, __u32 *vallen, void *val)
-{
- struct key_parms *kparms = (struct key_parms *)key;
- struct crypto_key *ckey = (struct crypto_key *)val;
- int rc = 0;
-
- ENTRY;
-
- LASSERT(*vallen == sizeof(*ckey));
-
- switch (kparms->context->kc_command) {
- case GKS_GET_KEY:
- case GKS_DECRYPT_KEY:
- case GKS_GET_MAC:
- break;
- default:
- CERROR("Unknow op %d \n", kparms->context->kc_command);
- rc = -EINVAL;
- RETURN(rc);
- }
- rc = gkc_get_key(exp, kparms, ckey, kparms->context->kc_command);
- RETURN(rc);
-}
-static int gkc_setup(struct obd_device *obd, obd_count len, void *buf)
-{
- struct client_obd *cli = &obd->u.cli;
- int rc;
- ENTRY;
-
- OBD_ALLOC(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
- if (!cli->cl_rpc_lock)
- RETURN(-ENOMEM);
- gkc_init_rpc_lock(cli->cl_rpc_lock);
-
- ptlrpcd_addref();
-
- rc = client_obd_setup(obd, len, buf);
- if (rc)
- GOTO(err_rpc_lock, rc);
-
- RETURN(rc);
-err_rpc_lock:
- OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
- ptlrpcd_decref();
- RETURN(rc);
-}
-
-static int gkc_cleanup(struct obd_device *obd, int flags)
-{
- struct client_obd *cli = &obd->u.cli;
-
- OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
-
- ptlrpcd_decref();
-
- return client_obd_cleanup(obd, 0);
-}
-
-static int gkc_attach(struct obd_device *dev, obd_count len, void *data)
-{
- struct lprocfs_static_vars lvars;
-
- lprocfs_init_vars(gkc, &lvars);
- return lprocfs_obd_attach(dev, lvars.obd_vars);
-}
-
-static int gkc_detach(struct obd_device *dev)
-{
- return lprocfs_obd_detach(dev);
-}
-
-static struct obd_ops gkc_obd_ops = {
- .o_owner = THIS_MODULE,
- .o_connect = client_connect_import,
- .o_disconnect = client_disconnect_export,
- .o_attach = gkc_attach,
- .o_detach = gkc_detach,
- .o_setup = gkc_setup,
- .o_cleanup = gkc_cleanup,
- .o_get_info = gkc_get_info,
- .o_set_info = gkc_set_info,
-};
-
-static int __init gkc_init(void)
-{
- struct lprocfs_static_vars lvars;
-
- lprocfs_init_vars(gkc, &lvars);
- class_register_type(&gkc_obd_ops, NULL, lvars.module_vars,
- LUSTRE_GKC_NAME);
- return 0;
-}
-
-static void gkc_exit(void)
-{
- class_unregister_type(LUSTRE_GKC_NAME);
-}
-
-MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
-MODULE_DESCRIPTION("Lustre GS Client (GS)");
-MODULE_LICENSE("GPL");
-
-module_init(gkc_init);
-module_exit(gkc_exit);
-
git://git.whamcloud.com / fs / lustre-release.git / blobdiff