*
* 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
- *
- * 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.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*
* lustre/ptlrpc/sec_lproc.c
*
#define DEBUG_SUBSYSTEM S_SEC
#include <libcfs/libcfs.h>
-#ifndef __KERNEL__
-#include <liblustre.h>
-#include <libcfs/list.h>
-#else
#include <linux/crypto.h>
-#endif
#include <obd.h>
#include <obd_class.h>
#include "ptlrpc_internal.h"
-#ifdef __KERNEL__
-
-struct proc_dir_entry *sptlrpc_proc_root = NULL;
-EXPORT_SYMBOL(sptlrpc_proc_root);
-
-char *sec_flags2str(unsigned long flags, char *buf, int bufsize)
+static char *sec_flags2str(unsigned long flags, char *buf, int bufsize)
{
buf[0] = '\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];
+ struct obd_device *obd = seq->private;
+ struct client_obd *cli = &obd->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);
+ 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 ||
+ strcmp(obd->obd_type->typ_name, LUSTRE_LWP_NAME) == 0 ||
+ strcmp(obd->obd_type->typ_name, LUSTRE_OSP_NAME) == 0);
- if (cli->cl_import)
- sec = sptlrpc_import_sec_ref(cli->cl_import);
- if (sec == NULL)
- goto out;
+ 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));
+ 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, "refcount: %d\n",
atomic_read(&sec->ps_refcount));
seq_printf(seq, "nctx: %d\n", atomic_read(&sec->ps_nctx));
- seq_printf(seq, "gc internal %ld\n", sec->ps_gc_interval);
- seq_printf(seq, "gc next %ld\n",
+ seq_printf(seq, "gc interval %lld\n", sec->ps_gc_interval);
+ seq_printf(seq, "gc next %lld\n",
sec->ps_gc_interval ?
- sec->ps_gc_next - cfs_time_current_sec() : 0);
+ (s64)(sec->ps_gc_next - ktime_get_real_seconds()) : 0ll);
sptlrpc_sec_put(sec);
out:
- return 0;
+ return 0;
}
-LPROC_SEQ_FOPS_RO(sptlrpc_info_lprocfs);
+
+LDEBUGFS_SEQ_FOPS_RO(sptlrpc_info_lprocfs);
static int sptlrpc_ctxs_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;
+ struct obd_device *obd = seq->private;
+ struct client_obd *cli = &obd->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);
+ 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 ||
+ strcmp(obd->obd_type->typ_name, LUSTRE_LWP_NAME) == 0 ||
+ strcmp(obd->obd_type->typ_name, LUSTRE_OSP_NAME) == 0);
- if (cli->cl_import)
- sec = sptlrpc_import_sec_ref(cli->cl_import);
- if (sec == NULL)
- goto out;
+ 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);
+ if (sec->ps_policy->sp_cops->display)
+ sec->ps_policy->sp_cops->display(sec, seq);
- sptlrpc_sec_put(sec);
+ sptlrpc_sec_put(sec);
out:
- return 0;
+ return 0;
}
-LPROC_SEQ_FOPS_RO(sptlrpc_ctxs_lprocfs);
-int sptlrpc_lprocfs_cliobd_attach(struct obd_device *dev)
+LDEBUGFS_SEQ_FOPS_RO(sptlrpc_ctxs_lprocfs);
+
+static inline
+bool sptlrpc_sepol_update_needed(struct ptlrpc_sec *imp_sec,
+ ktime_t mtime, char *pol, size_t pol_len)
{
- 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;
- }
-
- 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;
- }
-
- 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;
- }
-
- return 0;
+ struct sptlrpc_sepol *old;
+ bool rc;
+
+ rcu_read_lock();
+ old = rcu_dereference(imp_sec->ps_sepol);
+ if (!old)
+ rc = true;
+ else if (!kref_read(&old->ssp_ref))
+ rc = false;
+ else if (ktime_compare(old->ssp_mtime, mtime) != 0)
+ rc = true;
+ else
+ rc = false;
+ rcu_read_unlock();
+
+ return rc;
}
-EXPORT_SYMBOL(sptlrpc_lprocfs_cliobd_attach);
+static int sptlrpc_sepol_update(struct obd_import *imp,
+ ktime_t mtime, char *pol, size_t pol_len)
+{
+ struct sptlrpc_sepol *old;
+ struct sptlrpc_sepol *new;
+ struct ptlrpc_sec *imp_sec;
+ int rc = 0;
+
+ imp_sec = sptlrpc_import_sec_ref(imp);
+ if (!imp_sec)
+ RETURN(-ENODEV);
+
+ if (!sptlrpc_sepol_update_needed(imp_sec, mtime, pol, pol_len))
+ GOTO(out, rc);
+
+ new = kmalloc(sizeof(typeof(*new)) + pol_len + 1, GFP_KERNEL);
+ if (!new)
+ GOTO(out, rc = -ENOMEM);
+
+ kref_init(&new->ssp_ref);
+ new->ssp_sepol_size = pol_len + 1;
+ new->ssp_mtime = mtime;
+ strscpy(new->ssp_sepol, pol, new->ssp_sepol_size);
+
+ spin_lock(&imp_sec->ps_lock);
+ old = rcu_dereference_protected(imp_sec->ps_sepol, 1);
+ rcu_assign_pointer(imp_sec->ps_sepol, new);
+ spin_unlock(&imp_sec->ps_lock);
+ sptlrpc_sepol_put(old);
+out:
+ sptlrpc_sec_put(imp_sec);
-LPROC_SEQ_FOPS_RO(sptlrpc_proc_enc_pool);
-static struct lprocfs_seq_vars sptlrpc_lprocfs_vars[] = {
- { .name = "encrypt_page_pools",
- .fops = &sptlrpc_proc_enc_pool_fops },
- { NULL }
-};
+ return rc;
+}
-int sptlrpc_lproc_init(void)
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 16, 53, 0)
+static ssize_t sepol_seq_write_old(struct obd_device *obd,
+ const char __user *buffer, size_t count)
{
- int rc;
+ struct client_obd *cli = &obd->u.cli;
+ struct obd_import *imp = cli->cl_import;
+ struct sepol_downcall_data_old *param;
+ size_t maxlen = LUSTRE_NODEMAP_SEPOL_LENGTH + 1;
+ size_t size = sizeof(*param);
+ size_t maxparam = sizeof(*param) + maxlen;
+ int len;
+ int rc = 0;
+
+ if (count <= size) {
+ rc = -EINVAL;
+ CERROR("%s: invalid data count %zu <= size %zu: rc = %d\n",
+ obd->obd_name, count, size, rc);
+ return rc;
+ }
- LASSERT(sptlrpc_proc_root == NULL);
+ OBD_ALLOC(param, maxparam);
+ if (!param)
+ return -ENOMEM;
- sptlrpc_proc_root = lprocfs_seq_register("sptlrpc", proc_lustre_root,
- sptlrpc_lprocfs_vars, NULL);
- if (IS_ERR(sptlrpc_proc_root)) {
- rc = PTR_ERR(sptlrpc_proc_root);
- sptlrpc_proc_root = NULL;
- return rc;
+ if (copy_from_user(param, buffer, min(count, maxparam))) {
+ rc = -EFAULT;
+ CERROR("%s: bad sepol data: rc = %d\n", obd->obd_name, rc);
+ GOTO(out, rc);
}
- return 0;
+
+ if (param->sdd_magic != SEPOL_DOWNCALL_MAGIC_OLD) {
+ rc = -EINVAL;
+ CERROR("%s: sepol downcall bad magic %#08x != %#08x: rc = %d\n",
+ obd->obd_name, param->sdd_magic,
+ SEPOL_DOWNCALL_MAGIC_OLD, rc);
+ GOTO(out, rc);
+ }
+
+ len = param->sdd_sepol_len;
+ if (len == 0 || len >= maxlen) {
+ rc = -EINVAL;
+ CERROR("%s: bad sepol len %u >= maxlen %zu: rc = %d\n",
+ obd->obd_name, len, maxlen, rc);
+ GOTO(out, rc);
+ }
+ size = offsetof(typeof(*param), sdd_sepol[len]);
+
+ if (count < size) {
+ rc = -EINVAL;
+ CERROR("%s: bad sepol count %zu < total size %zu: rc = %d\n",
+ obd->obd_name, count, size, rc);
+ GOTO(out, rc);
+ }
+
+ rc = sptlrpc_sepol_update(imp, ktime_set(param->sdd_sepol_mtime, 0),
+ param->sdd_sepol, len);
+out:
+ OBD_FREE(param, maxparam);
+
+ return rc ?: count;
}
+#endif
-void sptlrpc_lproc_fini(void)
+static ssize_t
+ldebugfs_sptlrpc_sepol_seq_write(struct file *file, const char __user *buffer,
+ size_t count, void *data)
{
- if (sptlrpc_proc_root) {
- lprocfs_remove(&sptlrpc_proc_root);
- sptlrpc_proc_root = NULL;
- }
+ struct seq_file *seq = file->private_data;
+ struct obd_device *obd = seq->private;
+ struct client_obd *cli = &obd->u.cli;
+ struct obd_import *imp = cli->cl_import;
+ struct sepol_downcall_data *param;
+ size_t maxlen = LUSTRE_NODEMAP_SEPOL_LENGTH + 1;
+ size_t size = sizeof(*param);
+ size_t maxparam = size + maxlen;
+ int len;
+ int rc = 0;
+
+ if (count <= size) {
+ rc = -EINVAL;
+ CERROR("%s: invalid data count %zu <= size %zu: rc = %d\n",
+ obd->obd_name, count, size, rc);
+ return rc;
+ }
+
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 16, 53, 0)
+ {
+ __u32 magic;
+
+ if (copy_from_user(&magic, buffer, sizeof(magic))) {
+ rc = -EFAULT;
+ CERROR("%s: bad sepol magic data: rc = %d\n",
+ obd->obd_name, rc);
+ return rc;
+ }
+
+ if (unlikely(magic == SEPOL_DOWNCALL_MAGIC_OLD))
+ return sepol_seq_write_old(obd, buffer, count);
+ }
+#endif
+
+ OBD_ALLOC(param, maxparam);
+ if (!param)
+ return -ENOMEM;
+
+ if (copy_from_user(param, buffer, min(count, maxparam))) {
+ rc = -EFAULT;
+ CERROR("%s: bad sepol data: rc = %d\n", obd->obd_name, rc);
+ GOTO(out, rc);
+ }
+
+ if (param->sdd_magic != SEPOL_DOWNCALL_MAGIC) {
+ rc = -EINVAL;
+ CERROR("%s: sepol downcall bad magic %#08x != %#08x: rc = %d\n",
+ obd->obd_name, param->sdd_magic,
+ SEPOL_DOWNCALL_MAGIC, rc);
+ GOTO(out, rc);
+ }
+
+ len = param->sdd_sepol_len;
+ if (len == 0 || len >= maxlen) {
+ rc = -EINVAL;
+ CERROR("%s: bad sepol len %u >= maxlen %zu: rc = %d\n",
+ obd->obd_name, len, maxlen, rc);
+ GOTO(out, rc);
+ }
+ size = offsetof(typeof(*param), sdd_sepol[len]);
+
+ if (count < size) {
+ rc = -EINVAL;
+ CERROR("%s: bad sepol count %zu < total size %zu: rc = %d\n",
+ obd->obd_name, count, size, rc);
+ GOTO(out, rc);
+ }
+
+ rc = sptlrpc_sepol_update(imp, ktime_set(param->sdd_sepol_mtime, 0),
+ param->sdd_sepol, len);
+out:
+ OBD_FREE(param, maxparam);
+
+ return rc ?: count;
}
-#else /* !__KERNEL__ */
+static int lprocfs_sptlrpc_sepol_seq_show(struct seq_file *seq, void *v)
+{
+ struct obd_device *obd = seq->private;
+ struct client_obd *cli = &obd->u.cli;
+ struct obd_import *imp = cli->cl_import;
+ struct ptlrpc_sec *imp_sec;
+ struct sptlrpc_sepol *sepol;
+ struct timespec64 ts;
+ int rc = 0;
+
+ imp_sec = sptlrpc_import_sec_ref(imp);
+ if (!imp_sec)
+ RETURN(-ENODEV);
+
+ rcu_read_lock();
+ sepol = rcu_dereference(imp->imp_sec->ps_sepol);
+ if (sepol) {
+ ts = ktime_to_timespec64(sepol->ssp_mtime);
+ seq_printf(seq, "mtime: %lld\n", (long long int) ts.tv_sec);
+ seq_printf(seq, "sepol: %.*s\n",
+ sepol->ssp_sepol_size, sepol->ssp_sepol);
+ } else {
+ seq_puts(seq, "uninitialized\n");
+ }
+ rcu_read_unlock();
+ sptlrpc_sec_put(imp_sec);
+
+ return rc;
+}
+LDEBUGFS_SEQ_FOPS_RW_TYPE(srpc, sptlrpc_sepol);
-int sptlrpc_lprocfs_cliobd_attach(struct obd_device *dev)
+int sptlrpc_lprocfs_cliobd_attach(struct obd_device *obd)
{
- return 0;
+ if (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 &&
+ strcmp(obd->obd_type->typ_name, LUSTRE_LWP_NAME) != 0 &&
+ strcmp(obd->obd_type->typ_name, LUSTRE_OSP_NAME) != 0) {
+ CERROR("can't register lproc for obd type %s\n",
+ obd->obd_type->typ_name);
+ return -EINVAL;
+ }
+
+ debugfs_create_file("srpc_info", 0444, obd->obd_debugfs_entry, obd,
+ &sptlrpc_info_lprocfs_fops);
+
+ debugfs_create_file("srpc_contexts", 0444, obd->obd_debugfs_entry, obd,
+ &sptlrpc_ctxs_lprocfs_fops);
+
+ debugfs_create_file("srpc_sepol", 0200, obd->obd_debugfs_entry, obd,
+ &srpc_sptlrpc_sepol_fops);
+
+ return 0;
}
+EXPORT_SYMBOL(sptlrpc_lprocfs_cliobd_attach);
+
+LDEBUGFS_SEQ_FOPS_RO(encrypt_page_pools);
+LDEBUGFS_SEQ_FOPS_RO(page_pools);
+
+static struct ldebugfs_vars sptlrpc_lprocfs_vars[] = {
+ { .name = "encrypt_page_pools",
+ .fops = &encrypt_page_pools_fops },
+ { .name = "page_pools",
+ .fops = &page_pools_fops },
+
+ { NULL }
+};
+
+struct dentry *sptlrpc_debugfs_dir;
+EXPORT_SYMBOL(sptlrpc_debugfs_dir);
+
+struct proc_dir_entry *sptlrpc_lprocfs_dir;
+EXPORT_SYMBOL(sptlrpc_lprocfs_dir);
int sptlrpc_lproc_init(void)
{
- return 0;
+ int rc = 0;
+
+ LASSERT(sptlrpc_debugfs_dir == NULL);
+
+ sptlrpc_debugfs_dir = debugfs_create_dir("sptlrpc",
+ debugfs_lustre_root);
+ ldebugfs_add_vars(sptlrpc_debugfs_dir, sptlrpc_lprocfs_vars, NULL);
+
+ sptlrpc_lprocfs_dir = lprocfs_register("sptlrpc", proc_lustre_root,
+ NULL, NULL);
+ if (IS_ERR_OR_NULL(sptlrpc_lprocfs_dir)) {
+ rc = PTR_ERR(sptlrpc_lprocfs_dir);
+ rc = sptlrpc_lprocfs_dir ? PTR_ERR(sptlrpc_lprocfs_dir)
+ : -ENOMEM;
+ sptlrpc_lprocfs_dir = NULL;
+ }
+ return rc;
}
void sptlrpc_lproc_fini(void)
{
-}
+ debugfs_remove_recursive(sptlrpc_debugfs_dir);
+ sptlrpc_debugfs_dir = NULL;
-#endif
+ if (!IS_ERR_OR_NULL(sptlrpc_lprocfs_dir))
+ lprocfs_remove(&sptlrpc_lprocfs_dir);
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff