lustre/ptlrpc/sec_lproc.c

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  * Copyright (C) 2006 Cluster File Systems, Inc.
   5  *   Author: Eric Mei <ericm@clusterfs.com>
   6  *
   7  *   This file is part of Lustre, http://www.lustre.org.
   8  *
   9  *   Lustre is free software; you can redistribute it and/or
  10  *   modify it under the terms of version 2 of the GNU General Public
  11  *   License as published by the Free Software Foundation.
  12  *
  13  *   Lustre is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with Lustre; if not, write to the Free Software
  20  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 #ifndef EXPORT_SYMTAB
  24 #define EXPORT_SYMTAB
  25 #endif
  26 #define DEBUG_SUBSYSTEM S_SEC
  27
  28 #include <libcfs/libcfs.h>
  29 #ifndef __KERNEL__
  30 #include <liblustre.h>
  31 #include <libcfs/list.h>
  32 #else
  33 #include <linux/crypto.h>
  34 #endif
  35
  36 #include <obd.h>
  37 #include <obd_class.h>
  38 #include <obd_support.h>
  39 #include <lustre_net.h>
  40 #include <lustre_import.h>
  41 #include <lustre_dlm.h>
  42 #include <lustre_sec.h>
  43
  44 #include "ptlrpc_internal.h"
  45
  46 #ifdef __KERNEL__
  47
  48 struct proc_dir_entry *sptlrpc_proc_root = NULL;
  49 EXPORT_SYMBOL(sptlrpc_proc_root);
  50
  51 void sec_flags2str(unsigned long flags, char *buf, int bufsize)
  52 {
  53         buf[0] = '\0';
  54
  55         if (flags & PTLRPC_SEC_FL_REVERSE)
  56                 strncat(buf, "reverse,", bufsize);
  57         if (flags & PTLRPC_SEC_FL_ROOTONLY)
  58                 strncat(buf, "rootonly,", bufsize);
  59         if (flags & PTLRPC_SEC_FL_UDESC)
  60                 strncat(buf, "udesc,", bufsize);
  61         if (flags & PTLRPC_SEC_FL_BULK)
  62                 strncat(buf, "bulk,", bufsize);
  63         if (buf[0] == '\0')
  64                 strncat(buf, "-,", bufsize);
  65
  66         buf[strlen(buf) - 1] = '\0';
  67
  68 }
  69
  70 static int sptlrpc_info_lprocfs_seq_show(struct seq_file *seq, void *v)
  71 {
  72         struct obd_device *dev = seq->private;
  73         struct client_obd *cli = &dev->u.cli;
  74         struct ptlrpc_sec *sec = NULL;
  75         char               flags_str[32];
  76
  77         LASSERT(strcmp(dev->obd_type->typ_name, LUSTRE_OSC_NAME) == 0 ||
  78                 strcmp(dev->obd_type->typ_name, LUSTRE_MDC_NAME) == 0 ||
  79                 strcmp(dev->obd_type->typ_name, LUSTRE_MGC_NAME) == 0);
  80
  81         if (cli->cl_import)
  82                 sec = sptlrpc_import_sec_ref(cli->cl_import);
  83         if (sec == NULL)
  84                 goto out;
  85
  86         sec_flags2str(sec->ps_flvr.sf_flags, flags_str, sizeof(flags_str));
  87
  88         seq_printf(seq, "rpc flavor:    %s\n",
  89                    sptlrpc_rpcflavor2name(sec->ps_flvr.sf_rpc));
  90         seq_printf(seq, "bulk flavor:   %s/%s\n",
  91                    sptlrpc_bulk_csum_alg2name(sec->ps_flvr.sf_bulk_csum),
  92                    sptlrpc_bulk_priv_alg2name(sec->ps_flvr.sf_bulk_priv));
  93         seq_printf(seq, "flags:         %s\n", flags_str);
  94         seq_printf(seq, "id:            %d\n", sec->ps_id);
  95         seq_printf(seq, "refcount:      %d\n", atomic_read(&sec->ps_refcount));
  96         seq_printf(seq, "nctx:          %d\n", atomic_read(&sec->ps_nctx));
  97         seq_printf(seq, "gc internal    %ld\n", sec->ps_gc_interval);
  98         seq_printf(seq, "gc next        %ld\n",
  99                    sec->ps_gc_interval ?
 100                    sec->ps_gc_next - cfs_time_current_sec() : 0);
 101
 102         sptlrpc_sec_put(sec);
 103 out:
 104         return 0;
 105 }
 106 LPROC_SEQ_FOPS_RO(sptlrpc_info_lprocfs);
 107
 108 static int sptlrpc_ctxs_lprocfs_seq_show(struct seq_file *seq, void *v)
 109 {
 110         struct obd_device *dev = seq->private;
 111         struct client_obd *cli = &dev->u.cli;
 112         struct ptlrpc_sec *sec = NULL;
 113
 114         LASSERT(strcmp(dev->obd_type->typ_name, LUSTRE_OSC_NAME) == 0 ||
 115                 strcmp(dev->obd_type->typ_name, LUSTRE_MDC_NAME) == 0 ||
 116                 strcmp(dev->obd_type->typ_name, LUSTRE_MGC_NAME) == 0);
 117
 118         if (cli->cl_import)
 119                 sec = sptlrpc_import_sec_ref(cli->cl_import);
 120         if (sec == NULL)
 121                 goto out;
 122
 123         if (sec->ps_policy->sp_cops->display)
 124                 sec->ps_policy->sp_cops->display(sec, seq);
 125
 126         sptlrpc_sec_put(sec);
 127 out:
 128         return 0;
 129 }
 130 LPROC_SEQ_FOPS_RO(sptlrpc_ctxs_lprocfs);
 131
 132 int sptlrpc_lprocfs_cliobd_attach(struct obd_device *dev)
 133 {
 134         int     rc;
 135
 136         if (strcmp(dev->obd_type->typ_name, LUSTRE_OSC_NAME) != 0 &&
 137             strcmp(dev->obd_type->typ_name, LUSTRE_MDC_NAME) != 0 &&
 138             strcmp(dev->obd_type->typ_name, LUSTRE_MGC_NAME) != 0) {
 139                 CERROR("can't register lproc for obd type %s\n",
 140                        dev->obd_type->typ_name);
 141                 return -EINVAL;
 142         }
 143
 144         rc = lprocfs_obd_seq_create(dev, "srpc.info", 0444,
 145                                     &sptlrpc_info_lprocfs_fops, dev);
 146         if (rc) {
 147                 CERROR("create proc entry srpc.info for %s: %d\n",
 148                        dev->obd_name, rc);
 149                 return rc;
 150         }
 151
 152         rc = lprocfs_obd_seq_create(dev, "srpc.contexts", 0444,
 153                                     &sptlrpc_ctxs_lprocfs_fops, dev);
 154         if (rc) {
 155                 CERROR("create proc entry srpc.contexts for %s: %d\n",
 156                        dev->obd_name, rc);
 157                 return rc;
 158         }
 159
 160         return 0;
 161 }
 162 EXPORT_SYMBOL(sptlrpc_lprocfs_cliobd_attach);
 163
 164 static struct lprocfs_vars sptlrpc_lprocfs_vars[] = {
 165         { "encrypt_page_pools", sptlrpc_proc_read_enc_pool, NULL, NULL },
 166         { NULL }
 167 };
 168
 169 int sptlrpc_lproc_init(void)
 170 {
 171         int     rc;
 172
 173         LASSERT(sptlrpc_proc_root == NULL);
 174
 175         sptlrpc_proc_root = lprocfs_register("sptlrpc", proc_lustre_root,
 176                                              sptlrpc_lprocfs_vars, NULL);
 177         if (IS_ERR(sptlrpc_proc_root)) {
 178                 rc = PTR_ERR(sptlrpc_proc_root);
 179                 sptlrpc_proc_root = NULL;
 180                 return rc;
 181         }
 182         return 0;
 183 }
 184
 185 void sptlrpc_lproc_fini(void)
 186 {
 187         if (sptlrpc_proc_root) {
 188                 lprocfs_remove(&sptlrpc_proc_root);
 189                 sptlrpc_proc_root = NULL;
 190         }
 191 }
 192
 193 #else /* !__KERNEL__ */
 194
 195 int sptlrpc_lprocfs_cliobd_attach(struct obd_device *dev)
 196 {
 197         return 0;
 198 }
 199
 200 int sptlrpc_lproc_init(void)
 201 {
 202         return 0;
 203 }
 204
 205 void sptlrpc_lproc_fini(void)
 206 {
 207 }
 208
 209 #endif