Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / drivers / staging / lustre / lustre / ptlrpc / sec_lproc.c
diff --git a/kernel/drivers/staging/lustre/lustre/ptlrpc/sec_lproc.c b/kernel/drivers/staging/lustre/lustre/ptlrpc/sec_lproc.c
new file mode 100644 (file)
index 0000000..0d08145
--- /dev/null
@@ -0,0 +1,199 @@
+/*
+ * 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) 2007, 2010, Oracle and/or its affiliates. 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.
+ *
+ * lustre/ptlrpc/sec_lproc.c
+ *
+ * Author: Eric Mei <ericm@clusterfs.com>
+ */
+
+#define DEBUG_SUBSYSTEM S_SEC
+
+#include "../../include/linux/libcfs/libcfs.h"
+#include <linux/crypto.h>
+
+#include "../include/obd.h"
+#include "../include/obd_class.h"
+#include "../include/obd_support.h"
+#include "../include/lustre_net.h"
+#include "../include/lustre_import.h"
+#include "../include/lustre_dlm.h"
+#include "../include/lustre_sec.h"
+
+#include "ptlrpc_internal.h"
+
+
+struct proc_dir_entry *sptlrpc_proc_root = NULL;
+EXPORT_SYMBOL(sptlrpc_proc_root);
+
+static char *sec_flags2str(unsigned long flags, char *buf, int bufsize)
+{
+       buf[0] = '\0';
+
+       if (flags & PTLRPC_SEC_FL_REVERSE)
+               strlcat(buf, "reverse,", bufsize);
+       if (flags & PTLRPC_SEC_FL_ROOTONLY)
+               strlcat(buf, "rootonly,", bufsize);
+       if (flags & PTLRPC_SEC_FL_UDESC)
+               strlcat(buf, "udesc,", bufsize);
+       if (flags & PTLRPC_SEC_FL_BULK)
+               strlcat(buf, "bulk,", bufsize);
+       if (buf[0] == '\0')
+               strlcat(buf, "-,", bufsize);
+
+       return buf;
+}
+
+static int sptlrpc_info_lprocfs_seq_show(struct seq_file *seq, void *v)
+{
+       struct obd_device *dev = seq->private;
+       struct client_obd *cli = &dev->u.cli;
+       struct ptlrpc_sec *sec = NULL;
+       char           str[32];
+
+       LASSERT(strcmp(dev->obd_type->typ_name, LUSTRE_OSC_NAME) == 0 ||
+               strcmp(dev->obd_type->typ_name, LUSTRE_MDC_NAME) == 0 ||
+               strcmp(dev->obd_type->typ_name, LUSTRE_MGC_NAME) == 0);
+
+       if (cli->cl_import)
+               sec = sptlrpc_import_sec_ref(cli->cl_import);
+       if (sec == NULL)
+               goto out;
+
+       sec_flags2str(sec->ps_flvr.sf_flags, str, sizeof(str));
+
+       seq_printf(seq, "rpc flavor:    %s\n",
+                  sptlrpc_flavor2name_base(sec->ps_flvr.sf_rpc));
+       seq_printf(seq, "bulk flavor:   %s\n",
+                  sptlrpc_flavor2name_bulk(&sec->ps_flvr, str, sizeof(str)));
+       seq_printf(seq, "flags:  %s\n",
+                  sec_flags2str(sec->ps_flvr.sf_flags, str, sizeof(str)));
+       seq_printf(seq, "id:        %d\n", sec->ps_id);
+       seq_printf(seq, "refcount:      %d\n",
+                  atomic_read(&sec->ps_refcount));
+       seq_printf(seq, "nctx:    %d\n", atomic_read(&sec->ps_nctx));
+       seq_printf(seq, "gc internal    %ld\n", sec->ps_gc_interval);
+       seq_printf(seq, "gc next        %ld\n",
+                  sec->ps_gc_interval ?
+                  sec->ps_gc_next - get_seconds() : 0);
+
+       sptlrpc_sec_put(sec);
+out:
+       return 0;
+}
+LPROC_SEQ_FOPS_RO(sptlrpc_info_lprocfs);
+
+static int sptlrpc_ctxs_lprocfs_seq_show(struct seq_file *seq, void *v)
+{
+       struct obd_device *dev = seq->private;
+       struct client_obd *cli = &dev->u.cli;
+       struct ptlrpc_sec *sec = NULL;
+
+       LASSERT(strcmp(dev->obd_type->typ_name, LUSTRE_OSC_NAME) == 0 ||
+               strcmp(dev->obd_type->typ_name, LUSTRE_MDC_NAME) == 0 ||
+               strcmp(dev->obd_type->typ_name, LUSTRE_MGC_NAME) == 0);
+
+       if (cli->cl_import)
+               sec = sptlrpc_import_sec_ref(cli->cl_import);
+       if (sec == NULL)
+               goto out;
+
+       if (sec->ps_policy->sp_cops->display)
+               sec->ps_policy->sp_cops->display(sec, seq);
+
+       sptlrpc_sec_put(sec);
+out:
+       return 0;
+}
+LPROC_SEQ_FOPS_RO(sptlrpc_ctxs_lprocfs);
+
+int sptlrpc_lprocfs_cliobd_attach(struct obd_device *dev)
+{
+       int     rc;
+
+       if (strcmp(dev->obd_type->typ_name, LUSTRE_OSC_NAME) != 0 &&
+           strcmp(dev->obd_type->typ_name, LUSTRE_MDC_NAME) != 0 &&
+           strcmp(dev->obd_type->typ_name, LUSTRE_MGC_NAME) != 0) {
+               CERROR("can't register lproc for obd type %s\n",
+                      dev->obd_type->typ_name);
+               return -EINVAL;
+       }
+
+       rc = lprocfs_obd_seq_create(dev, "srpc_info", 0444,
+                                   &sptlrpc_info_lprocfs_fops, dev);
+       if (rc) {
+               CERROR("create proc entry srpc_info for %s: %d\n",
+                      dev->obd_name, rc);
+               return rc;
+       }
+
+       rc = lprocfs_obd_seq_create(dev, "srpc_contexts", 0444,
+                                   &sptlrpc_ctxs_lprocfs_fops, dev);
+       if (rc) {
+               CERROR("create proc entry srpc_contexts for %s: %d\n",
+                      dev->obd_name, rc);
+               return rc;
+       }
+
+       return 0;
+}
+EXPORT_SYMBOL(sptlrpc_lprocfs_cliobd_attach);
+
+LPROC_SEQ_FOPS_RO(sptlrpc_proc_enc_pool);
+static struct lprocfs_vars sptlrpc_lprocfs_vars[] = {
+       { "encrypt_page_pools", &sptlrpc_proc_enc_pool_fops },
+       { NULL }
+};
+
+int sptlrpc_lproc_init(void)
+{
+       int     rc;
+
+       LASSERT(sptlrpc_proc_root == NULL);
+
+       sptlrpc_proc_root = lprocfs_register("sptlrpc", proc_lustre_root,
+                                            sptlrpc_lprocfs_vars, NULL);
+       if (IS_ERR(sptlrpc_proc_root)) {
+               rc = PTR_ERR(sptlrpc_proc_root);
+               sptlrpc_proc_root = NULL;
+               return rc;
+       }
+       return 0;
+}
+
+void sptlrpc_lproc_fini(void)
+{
+       if (sptlrpc_proc_root) {
+               lprocfs_remove(&sptlrpc_proc_root);
+               sptlrpc_proc_root = NULL;
+       }
+}