Whamcloud - gitweb
LU-1855 build: fix 'out-of-bounds access' errors
[fs/lustre-release.git] / lustre / ptlrpc / sec_lproc.c
index 77c7cf4..0506d27 100644 (file)
@@ -1,27 +1,41 @@
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
  *
- * Copyright (C) 2006 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
- *   This file is part of Lustre, http://www.lustre.org.
+ * 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.
  *
- *   Lustre is free software; you can redistribute it and/or
- *   modify it under the terms of version 2 of the GNU General Public
- *   License 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).
  *
- *   Lustre 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 for more details.
+ * 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
  *
- *   You should have received a copy of the GNU General Public License
- *   along with Lustre; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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>
  */
 
-#ifndef EXPORT_SYMTAB
-#define EXPORT_SYMTAB
-#endif
 #define DEBUG_SUBSYSTEM S_SEC
 
 #include <libcfs/libcfs.h>
 struct proc_dir_entry *sptlrpc_proc_root = NULL;
 EXPORT_SYMBOL(sptlrpc_proc_root);
 
-void sec_flags2str(unsigned long flags, char *buf, int bufsize)
+char *sec_flags2str(unsigned long flags, char *buf, int bufsize)
 {
-        buf[0] = '\0';
-
-        if (flags & PTLRPC_SEC_FL_REVERSE)
-                strncat(buf, "reverse,", bufsize);
-        if (flags & PTLRPC_SEC_FL_ROOTONLY)
-                strncat(buf, "rootonly,", bufsize);
-        if (flags & PTLRPC_SEC_FL_BULK)
-                strncat(buf, "bulk,", bufsize);
-        if (buf[0] == '\0')
-                strncat(buf, "-,", 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;
+}
 
-        buf[strlen(buf) - 1] = '\0';
+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",
+                   cfs_atomic_read(&sec->ps_refcount));
+        seq_printf(seq, "nctx:          %d\n", cfs_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 - cfs_time_current_sec() : 0);
+
+        sptlrpc_sec_put(sec);
+out:
+        return 0;
 }
+LPROC_SEQ_FOPS_RO(sptlrpc_info_lprocfs);
 
-int sptlrpc_lprocfs_rd(char *page, char **start, off_t off, int count,
-                       int *eof, void *data)
+static int sptlrpc_ctxs_lprocfs_seq_show(struct seq_file *seq, void *v)
 {
-        struct obd_device        *obd = data;
-        struct sec_flavor_config *conf = &obd->u.cli.cl_sec_conf;
-        struct ptlrpc_sec        *sec = NULL;
-        struct ptlrpc_cli_ctx    *ctx;
-        struct hlist_node        *pos, *next;
-        char                      flags_str[32];
-        int                       written, i;
-
-        if (obd == NULL)
-                return 0;
-
-        LASSERT(strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME) == 0 ||
-                strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) == 0 ||
-                strcmp(obd->obd_type->typ_name, LUSTRE_MGC_NAME) == 0);
-        LASSERT(conf->sfc_bulk_csum < BULK_CSUM_ALG_MAX);
-        LASSERT(conf->sfc_bulk_priv < BULK_PRIV_ALG_MAX);
-
-        if (obd->u.cli.cl_import)
-                sec = obd->u.cli.cl_import->imp_sec;
-
-        if (sec == NULL) {
-                written = snprintf(page, count, "\n");
+        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;
         }
 
-        sec_flags2str(sec->ps_flags, flags_str, sizeof(flags_str));
-
-        written = snprintf(page, count,
-                        "rpc msg flavor:        %s\n"
-                        "bulk checksum:         %s\n"
-                        "bulk encrypt:          %s\n"
-                        "flags:                 %s\n"
-                        "ctx cache size         %u\n"
-                        "ctx cache busy         %d\n"
-                        "gc interval            %lu\n"
-                        "gc next                %ld\n",
-                        sptlrpc_flavor2name(sec->ps_flavor),
-                        sptlrpc_bulk_csum_alg2name(conf->sfc_bulk_csum),
-                        sptlrpc_bulk_priv_alg2name(conf->sfc_bulk_priv),
-                        flags_str,
-                        sec->ps_ccache_size,
-                        atomic_read(&sec->ps_busy),
-                        sec->ps_gc_interval,
-                        sec->ps_gc_interval ?
-                                sec->ps_gc_next - cfs_time_current_sec() : 0
-                          );
-        /*
-         * list contexts
-         */
-        if (sec->ps_policy->sp_policy != SPTLRPC_POLICY_GSS)
-                goto out;
+        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;
+        }
 
-        written += snprintf(page + written, count - written,
-                            "GSS contexts ==>\n");
-
-        spin_lock(&sec->ps_lock);
-        for (i = 0; i < sec->ps_ccache_size; i++) {
-                hlist_for_each_entry_safe(ctx, pos, next,
-                                          &sec->ps_ccache[i], cc_hash) {
-                        if (written >= count)
-                                break;
-                        written += sptlrpc_ctx_display(ctx, page + written,
-                                                       count - written);
-                }
+        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;
         }
-        spin_unlock(&sec->ps_lock);
 
-out:
-        return written;
+        return 0;
 }
-EXPORT_SYMBOL(sptlrpc_lprocfs_rd);
+EXPORT_SYMBOL(sptlrpc_lprocfs_cliobd_attach);
 
 static struct lprocfs_vars sptlrpc_lprocfs_vars[] = {
-        { "enc_pool", sptlrpc_proc_read_enc_pool, NULL, NULL },
+        { "encrypt_page_pools", sptlrpc_proc_read_enc_pool, NULL, NULL },
         { NULL }
 };
 
@@ -170,6 +205,11 @@ void sptlrpc_lproc_fini(void)
 
 #else /* !__KERNEL__ */
 
+int sptlrpc_lprocfs_cliobd_attach(struct obd_device *dev)
+{
+        return 0;
+}
+
 int sptlrpc_lproc_init(void)
 {
         return 0;