1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
38 # define EXPORT_SYMTAB
40 #define DEBUG_SUBSYSTEM S_SEC
42 #include <linux/init.h>
43 #include <linux/module.h>
44 #include <linux/slab.h>
45 #include <linux/dcache.h>
47 #include <linux/mutex.h>
49 #include <liblustre.h>
53 #include <obd_class.h>
54 #include <obd_support.h>
55 #include <lustre/lustre_idl.h>
56 #include <lustre_net.h>
57 #include <lustre_import.h>
58 #include <lprocfs_status.h>
59 #include <lustre_sec.h>
62 #include "gss_internal.h"
65 static struct proc_dir_entry *gss_proc_root = NULL;
66 static struct proc_dir_entry *gss_proc_lk = NULL;
69 * statistic of "out-of-sequence-window"
72 cfs_spinlock_t oos_lock;
73 cfs_atomic_t oos_cli_count; /* client occurrence */
74 int oos_cli_behind; /* client max seqs behind */
75 cfs_atomic_t oos_svc_replay[3]; /* server replay detected */
76 cfs_atomic_t oos_svc_pass[3]; /* server verified ok */
78 .oos_cli_count = CFS_ATOMIC_INIT(0),
80 .oos_svc_replay = { CFS_ATOMIC_INIT(0), },
81 .oos_svc_pass = { CFS_ATOMIC_INIT(0), },
84 void gss_stat_oos_record_cli(int behind)
86 cfs_atomic_inc(&gss_stat_oos.oos_cli_count);
88 cfs_spin_lock(&gss_stat_oos.oos_lock);
89 if (behind > gss_stat_oos.oos_cli_behind)
90 gss_stat_oos.oos_cli_behind = behind;
91 cfs_spin_unlock(&gss_stat_oos.oos_lock);
94 void gss_stat_oos_record_svc(int phase, int replay)
96 LASSERT(phase >= 0 && phase <= 2);
99 cfs_atomic_inc(&gss_stat_oos.oos_svc_replay[phase]);
101 cfs_atomic_inc(&gss_stat_oos.oos_svc_pass[phase]);
104 static int gss_proc_read_oos(char *page, char **start, off_t off, int count,
105 int *eof, void *data)
109 written = snprintf(page, count,
112 "client fall behind seqwin\n"
114 " max seq behind: %d\n"
115 "server replay detected:\n"
119 "server verify ok:\n"
123 cfs_atomic_read(&gss_stat_oos.oos_cli_count),
124 gss_stat_oos.oos_cli_behind,
125 cfs_atomic_read(&gss_stat_oos.oos_svc_replay[0]),
126 cfs_atomic_read(&gss_stat_oos.oos_svc_replay[1]),
127 cfs_atomic_read(&gss_stat_oos.oos_svc_replay[2]),
128 cfs_atomic_read(&gss_stat_oos.oos_svc_pass[2]));
133 static int gss_proc_write_secinit(struct file *file, const char *buffer,
134 unsigned long count, void *data)
138 rc = gss_do_ctx_init_rpc((char *) buffer, count);
144 return ((int) count);
147 static struct lprocfs_vars gss_lprocfs_vars[] = {
148 { "replays", gss_proc_read_oos, NULL },
149 { "init_channel", NULL, gss_proc_write_secinit, NULL, NULL, 0222 },
154 * for userspace helper lgss_keyring.
156 * debug_level: [0, 4], defined in utils/gss/lgss_utils.h
158 static int gss_lk_debug_level = 1;
160 static int gss_lk_proc_read_dl(char *page, char **start, off_t off,
161 int count, int *eof, void *data)
163 return snprintf(page, count, "%u\n", gss_lk_debug_level);
166 static int gss_lk_proc_write_dl(struct file *file, const char *buffer,
167 unsigned long count, void *data)
171 rc = lprocfs_write_helper(buffer, count, &val);
175 if (val < 0 || val > 4)
178 gss_lk_debug_level = val;
182 static struct lprocfs_vars gss_lk_lprocfs_vars[] = {
183 { "debug_level", gss_lk_proc_read_dl, gss_lk_proc_write_dl, NULL },
187 void gss_exit_lproc(void)
190 lprocfs_remove(&gss_proc_lk);
195 lprocfs_remove(&gss_proc_root);
196 gss_proc_root = NULL;
200 int gss_init_lproc(void)
204 cfs_spin_lock_init(&gss_stat_oos.oos_lock);
206 gss_proc_root = lprocfs_register("gss", sptlrpc_proc_root,
207 gss_lprocfs_vars, NULL);
208 if (IS_ERR(gss_proc_root)) {
209 gss_proc_root = NULL;
210 GOTO(err_out, rc = PTR_ERR(gss_proc_root));
213 gss_proc_lk = lprocfs_register("lgss_keyring", gss_proc_root,
214 gss_lk_lprocfs_vars, NULL);
215 if (IS_ERR(gss_proc_lk)) {
217 GOTO(err_out, rc = PTR_ERR(gss_proc_root));
223 CERROR("failed to initialize gss lproc entries: %d\n", rc);