-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* 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 [sun.com URL with a
- * copy of GPLv2].
- *
- * 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.
+ * version 2 along with this program; If not, see
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2012, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_SEC
-#ifdef __KERNEL__
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/dcache.h>
#include <linux/fs.h>
-#include <linux/random.h>
#include <linux/mutex.h>
-#else
-#include <liblustre.h>
-#endif
#include <obd.h>
#include <obd_class.h>
#include "gss_api.h"
static struct proc_dir_entry *gss_proc_root = NULL;
+static struct proc_dir_entry *gss_proc_lk = NULL;
/*
* statistic of "out-of-sequence-window"
*/
static struct {
- spinlock_t oos_lock;
- atomic_t oos_cli_count; /* client occurrence */
- int oos_cli_behind; /* client max seqs behind */
- atomic_t oos_svc_replay[3]; /* server replay detected */
- atomic_t oos_svc_pass[3]; /* server verified ok */
+ spinlock_t oos_lock;
+ atomic_t oos_cli_count; /* client occurrence */
+ int oos_cli_behind; /* client max seqs behind */
+ atomic_t oos_svc_replay[3]; /* server replay detected */
+ atomic_t oos_svc_pass[3]; /* server verified ok */
} gss_stat_oos = {
- .oos_lock = SPIN_LOCK_UNLOCKED,
- .oos_cli_count = ATOMIC_INIT(0),
- .oos_cli_behind = 0,
- .oos_svc_replay = { ATOMIC_INIT(0), },
- .oos_svc_pass = { ATOMIC_INIT(0), },
+ .oos_cli_count = ATOMIC_INIT(0),
+ .oos_cli_behind = 0,
+ .oos_svc_replay = { ATOMIC_INIT(0), },
+ .oos_svc_pass = { ATOMIC_INIT(0), },
};
void gss_stat_oos_record_cli(int behind)
{
- atomic_inc(&gss_stat_oos.oos_cli_count);
+ atomic_inc(&gss_stat_oos.oos_cli_count);
- spin_lock(&gss_stat_oos.oos_lock);
- if (behind > gss_stat_oos.oos_cli_behind)
- gss_stat_oos.oos_cli_behind = behind;
- spin_unlock(&gss_stat_oos.oos_lock);
+ spin_lock(&gss_stat_oos.oos_lock);
+ if (behind > gss_stat_oos.oos_cli_behind)
+ gss_stat_oos.oos_cli_behind = behind;
+ spin_unlock(&gss_stat_oos.oos_lock);
}
void gss_stat_oos_record_svc(int phase, int replay)
{
- LASSERT(phase >= 0 && phase <= 2);
+ LASSERT(phase >= 0 && phase <= 2);
- if (replay)
- atomic_inc(&gss_stat_oos.oos_svc_replay[phase]);
- else
- atomic_inc(&gss_stat_oos.oos_svc_pass[phase]);
+ if (replay)
+ atomic_inc(&gss_stat_oos.oos_svc_replay[phase]);
+ else
+ atomic_inc(&gss_stat_oos.oos_svc_pass[phase]);
}
-static int gss_proc_read_oos(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int gss_proc_oos_seq_show(struct seq_file *m, void *v)
{
- int written;
-
- written = snprintf(page, count,
- "seqwin: %u\n"
- "backwin: %u\n"
- "client fall behind seqwin\n"
- " occurrence: %d\n"
- " max seq behind: %d\n"
- "server replay detected:\n"
- " phase 0: %d\n"
- " phase 1: %d\n"
- " phase 2: %d\n"
- "server verify ok:\n"
- " phase 2: %d\n",
- GSS_SEQ_WIN_MAIN,
- GSS_SEQ_WIN_BACK,
- atomic_read(&gss_stat_oos.oos_cli_count),
- gss_stat_oos.oos_cli_behind,
- atomic_read(&gss_stat_oos.oos_svc_replay[0]),
- atomic_read(&gss_stat_oos.oos_svc_replay[1]),
- atomic_read(&gss_stat_oos.oos_svc_replay[2]),
- atomic_read(&gss_stat_oos.oos_svc_pass[2]));
-
- return written;
+ seq_printf(m, "seqwin: %u\n"
+ "backwin: %u\n"
+ "client fall behind seqwin\n"
+ " occurrence: %d\n"
+ " max seq behind: %d\n"
+ "server replay detected:\n"
+ " phase 0: %d\n"
+ " phase 1: %d\n"
+ " phase 2: %d\n"
+ "server verify ok:\n"
+ " phase 2: %d\n",
+ GSS_SEQ_WIN_MAIN,
+ GSS_SEQ_WIN_BACK,
+ atomic_read(&gss_stat_oos.oos_cli_count),
+ gss_stat_oos.oos_cli_behind,
+ atomic_read(&gss_stat_oos.oos_svc_replay[0]),
+ atomic_read(&gss_stat_oos.oos_svc_replay[1]),
+ atomic_read(&gss_stat_oos.oos_svc_replay[2]),
+ atomic_read(&gss_stat_oos.oos_svc_pass[2]));
+ return 0;
}
+LPROC_SEQ_FOPS_RO(gss_proc_oos);
-static int gss_proc_write_secinit(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t
+gss_proc_write_secinit(struct file *file, const char *buffer,
+ size_t count, loff_t *off)
{
int rc;
LASSERT(rc < 0);
return rc;
}
-
- return ((int) count);
+ return count;
}
+static const struct file_operations gss_proc_secinit = {
+ .write = gss_proc_write_secinit,
+};
+
static struct lprocfs_vars gss_lprocfs_vars[] = {
- { "replays", gss_proc_read_oos, NULL },
- { "init_channel", NULL, gss_proc_write_secinit, NULL },
- { NULL }
+ { .name = "replays",
+ .fops = &gss_proc_oos_fops },
+ { .name = "init_channel",
+ .fops = &gss_proc_secinit,
+ .proc_mode = 0222 },
+ { NULL }
};
-int gss_init_lproc(void)
+/*
+ * for userspace helper lgss_keyring.
+ *
+ * debug_level: [0, 4], defined in utils/gss/lgss_utils.h
+ */
+static int gss_lk_debug_level = 1;
+
+static int gss_lk_proc_dl_seq_show(struct seq_file *m, void *v)
{
- struct proc_dir_entry *ent;
- int rc;
+ seq_printf(m, "%u\n", gss_lk_debug_level);
+ return 0;
+}
- gss_proc_root = lprocfs_register("gss", sptlrpc_proc_root,
- gss_lprocfs_vars, NULL);
+static ssize_t
+gss_lk_proc_dl_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
+{
+ int rc;
+ __s64 val;
- if (IS_ERR(gss_proc_root)) {
- rc = PTR_ERR(gss_proc_root);
- gss_proc_root = NULL;
- CERROR("failed to initialize lproc entries: %d\n", rc);
- return rc;
- }
+ rc = lprocfs_str_to_s64(buffer, count, &val);
+ if (rc < 0)
+ return rc;
- /* FIXME
- * here we should hold proc_subdir_lock which is not exported
- */
- ent = gss_proc_root->subdir;
- while (ent != NULL) {
- if (strcmp(ent->name, "init_channel") == 0) {
- ent->mode |= 0222;
- break;
- }
- }
-
- return 0;
+ if (val < 0 || val > 4)
+ return -ERANGE;
+
+ gss_lk_debug_level = val;
+
+ return count;
}
+LPROC_SEQ_FOPS(gss_lk_proc_dl);
+
+static struct lprocfs_vars gss_lk_lprocfs_vars[] = {
+ { .name = "debug_level",
+ .fops = &gss_lk_proc_dl_fops },
+ { NULL }
+};
void gss_exit_lproc(void)
{
+ if (gss_proc_lk) {
+ lprocfs_remove(&gss_proc_lk);
+ gss_proc_lk = NULL;
+ }
+
if (gss_proc_root) {
lprocfs_remove(&gss_proc_root);
gss_proc_root = NULL;
}
}
+
+int gss_init_lproc(void)
+{
+ int rc;
+
+ spin_lock_init(&gss_stat_oos.oos_lock);
+
+ gss_proc_root = lprocfs_register("gss", sptlrpc_proc_root,
+ gss_lprocfs_vars, NULL);
+ if (IS_ERR(gss_proc_root)) {
+ rc = PTR_ERR(gss_proc_root);
+ gss_proc_root = NULL;
+ GOTO(out, rc);
+ }
+
+ gss_proc_lk = lprocfs_register("lgss_keyring", gss_proc_root,
+ gss_lk_lprocfs_vars, NULL);
+ if (IS_ERR(gss_proc_lk)) {
+ rc = PTR_ERR(gss_proc_lk);
+ gss_proc_lk = NULL;
+ GOTO(out, rc);
+ }
+
+ return 0;
+
+out:
+ CERROR("failed to initialize gss lproc entries: %d\n", rc);
+ gss_exit_lproc();
+
+ return rc;
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff