1 /*
2 * GPL HEADER START
3 *
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
19 *
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
22 * have any questions.
23 *
24 * GPL HEADER END
25 */
26 /*
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
29 */
30 /*
31 * This file is part of Lustre, http://www.lustre.org/
32 * Lustre is a trademark of Sun Microsystems, Inc.
33 *
34 * lustre/ptlrpc/sec_lproc.c
35 *
36 * Author: Eric Mei <ericm@clusterfs.com>
37 */
38
39 #define DEBUG_SUBSYSTEM S_SEC
40
41 #include "../../include/linux/libcfs/libcfs.h"
42 #include <linux/crypto.h>
43
44 #include "../include/obd.h"
45 #include "../include/obd_class.h"
46 #include "../include/obd_support.h"
47 #include "../include/lustre_net.h"
48 #include "../include/lustre_import.h"
49 #include "../include/lustre_dlm.h"
50 #include "../include/lustre_sec.h"
51
52 #include "ptlrpc_internal.h"
53
sec_flags2str(unsigned long flags,char * buf,int bufsize)54 static char *sec_flags2str(unsigned long flags, char *buf, int bufsize)
55 {
56 buf[0] = '\0';
57
58 if (flags & PTLRPC_SEC_FL_REVERSE)
59 strlcat(buf, "reverse,", bufsize);
60 if (flags & PTLRPC_SEC_FL_ROOTONLY)
61 strlcat(buf, "rootonly,", bufsize);
62 if (flags & PTLRPC_SEC_FL_UDESC)
63 strlcat(buf, "udesc,", bufsize);
64 if (flags & PTLRPC_SEC_FL_BULK)
65 strlcat(buf, "bulk,", bufsize);
66 if (buf[0] == '\0')
67 strlcat(buf, "-,", bufsize);
68
69 return buf;
70 }
71
sptlrpc_info_lprocfs_seq_show(struct seq_file * seq,void * v)72 static int sptlrpc_info_lprocfs_seq_show(struct seq_file *seq, void *v)
73 {
74 struct obd_device *dev = seq->private;
75 struct client_obd *cli = &dev->u.cli;
76 struct ptlrpc_sec *sec = NULL;
77 char str[32];
78
79 LASSERT(strcmp(dev->obd_type->typ_name, LUSTRE_OSC_NAME) == 0 ||
80 strcmp(dev->obd_type->typ_name, LUSTRE_MDC_NAME) == 0 ||
81 strcmp(dev->obd_type->typ_name, LUSTRE_MGC_NAME) == 0);
82
83 if (cli->cl_import)
84 sec = sptlrpc_import_sec_ref(cli->cl_import);
85 if (sec == NULL)
86 goto out;
87
88 sec_flags2str(sec->ps_flvr.sf_flags, str, sizeof(str));
89
90 seq_printf(seq, "rpc flavor: %s\n",
91 sptlrpc_flavor2name_base(sec->ps_flvr.sf_rpc));
92 seq_printf(seq, "bulk flavor: %s\n",
93 sptlrpc_flavor2name_bulk(&sec->ps_flvr, str, sizeof(str)));
94 seq_printf(seq, "flags: %s\n",
95 sec_flags2str(sec->ps_flvr.sf_flags, str, sizeof(str)));
96 seq_printf(seq, "id: %d\n", sec->ps_id);
97 seq_printf(seq, "refcount: %d\n",
98 atomic_read(&sec->ps_refcount));
99 seq_printf(seq, "nctx: %d\n", atomic_read(&sec->ps_nctx));
100 seq_printf(seq, "gc internal %ld\n", sec->ps_gc_interval);
101 seq_printf(seq, "gc next %lld\n",
102 sec->ps_gc_interval ?
103 (s64)(sec->ps_gc_next - ktime_get_real_seconds()) : 0ll);
104
105 sptlrpc_sec_put(sec);
106 out:
107 return 0;
108 }
109
110 LPROC_SEQ_FOPS_RO(sptlrpc_info_lprocfs);
111
sptlrpc_ctxs_lprocfs_seq_show(struct seq_file * seq,void * v)112 static int sptlrpc_ctxs_lprocfs_seq_show(struct seq_file *seq, void *v)
113 {
114 struct obd_device *dev = seq->private;
115 struct client_obd *cli = &dev->u.cli;
116 struct ptlrpc_sec *sec = NULL;
117
118 LASSERT(strcmp(dev->obd_type->typ_name, LUSTRE_OSC_NAME) == 0 ||
119 strcmp(dev->obd_type->typ_name, LUSTRE_MDC_NAME) == 0 ||
120 strcmp(dev->obd_type->typ_name, LUSTRE_MGC_NAME) == 0);
121
122 if (cli->cl_import)
123 sec = sptlrpc_import_sec_ref(cli->cl_import);
124 if (sec == NULL)
125 goto out;
126
127 if (sec->ps_policy->sp_cops->display)
128 sec->ps_policy->sp_cops->display(sec, seq);
129
130 sptlrpc_sec_put(sec);
131 out:
132 return 0;
133 }
134
135 LPROC_SEQ_FOPS_RO(sptlrpc_ctxs_lprocfs);
136
sptlrpc_lprocfs_cliobd_attach(struct obd_device * dev)137 int sptlrpc_lprocfs_cliobd_attach(struct obd_device *dev)
138 {
139 int rc;
140
141 if (strcmp(dev->obd_type->typ_name, LUSTRE_OSC_NAME) != 0 &&
142 strcmp(dev->obd_type->typ_name, LUSTRE_MDC_NAME) != 0 &&
143 strcmp(dev->obd_type->typ_name, LUSTRE_MGC_NAME) != 0) {
144 CERROR("can't register lproc for obd type %s\n",
145 dev->obd_type->typ_name);
146 return -EINVAL;
147 }
148
149 rc = ldebugfs_obd_seq_create(dev, "srpc_info", 0444,
150 &sptlrpc_info_lprocfs_fops, dev);
151 if (rc) {
152 CERROR("create proc entry srpc_info for %s: %d\n",
153 dev->obd_name, rc);
154 return rc;
155 }
156
157 rc = ldebugfs_obd_seq_create(dev, "srpc_contexts", 0444,
158 &sptlrpc_ctxs_lprocfs_fops, dev);
159 if (rc) {
160 CERROR("create proc entry srpc_contexts for %s: %d\n",
161 dev->obd_name, rc);
162 return rc;
163 }
164
165 return 0;
166 }
167 EXPORT_SYMBOL(sptlrpc_lprocfs_cliobd_attach);
168
169 LPROC_SEQ_FOPS_RO(sptlrpc_proc_enc_pool);
170 static struct lprocfs_vars sptlrpc_lprocfs_vars[] = {
171 { "encrypt_page_pools", &sptlrpc_proc_enc_pool_fops },
172 { NULL }
173 };
174
175 static struct dentry *sptlrpc_debugfs_dir;
176
sptlrpc_lproc_init(void)177 int sptlrpc_lproc_init(void)
178 {
179 int rc;
180
181 LASSERT(sptlrpc_debugfs_dir == NULL);
182
183 sptlrpc_debugfs_dir = ldebugfs_register("sptlrpc", debugfs_lustre_root,
184 sptlrpc_lprocfs_vars, NULL);
185 if (IS_ERR_OR_NULL(sptlrpc_debugfs_dir)) {
186 rc = sptlrpc_debugfs_dir ? PTR_ERR(sptlrpc_debugfs_dir)
187 : -ENOMEM;
188 sptlrpc_debugfs_dir = NULL;
189 return rc;
190 }
191 return 0;
192 }
193
sptlrpc_lproc_fini(void)194 void sptlrpc_lproc_fini(void)
195 {
196 if (!IS_ERR_OR_NULL(sptlrpc_debugfs_dir))
197 ldebugfs_remove(&sptlrpc_debugfs_dir);
198 }
199