170 lines
4.1 KiB
C
170 lines
4.1 KiB
C
/* -*- mode: c; c-basic-offset: 8; -*-
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* vim: noexpandtab sw=8 ts=8 sts=0:
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*
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* Copyright (C) 2004, 2005 Oracle. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/string.h>
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#include <asm/uaccess.h>
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#include "masklog.h"
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struct mlog_bits mlog_and_bits = MLOG_BITS_RHS(MLOG_INITIAL_AND_MASK);
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EXPORT_SYMBOL_GPL(mlog_and_bits);
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struct mlog_bits mlog_not_bits = MLOG_BITS_RHS(MLOG_INITIAL_NOT_MASK);
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EXPORT_SYMBOL_GPL(mlog_not_bits);
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static ssize_t mlog_mask_show(u64 mask, char *buf)
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{
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char *state;
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if (__mlog_test_u64(mask, mlog_and_bits))
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state = "allow";
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else if (__mlog_test_u64(mask, mlog_not_bits))
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state = "deny";
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else
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state = "off";
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return snprintf(buf, PAGE_SIZE, "%s\n", state);
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}
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static ssize_t mlog_mask_store(u64 mask, const char *buf, size_t count)
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{
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if (!strnicmp(buf, "allow", 5)) {
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__mlog_set_u64(mask, mlog_and_bits);
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__mlog_clear_u64(mask, mlog_not_bits);
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} else if (!strnicmp(buf, "deny", 4)) {
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__mlog_set_u64(mask, mlog_not_bits);
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__mlog_clear_u64(mask, mlog_and_bits);
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} else if (!strnicmp(buf, "off", 3)) {
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__mlog_clear_u64(mask, mlog_not_bits);
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__mlog_clear_u64(mask, mlog_and_bits);
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} else
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return -EINVAL;
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return count;
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}
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struct mlog_attribute {
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struct attribute attr;
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u64 mask;
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};
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#define to_mlog_attr(_attr) container_of(_attr, struct mlog_attribute, attr)
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#define define_mask(_name) { \
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.attr = { \
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.name = #_name, \
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.mode = S_IRUGO | S_IWUSR, \
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}, \
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.mask = ML_##_name, \
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}
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static struct mlog_attribute mlog_attrs[MLOG_MAX_BITS] = {
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define_mask(ENTRY),
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define_mask(EXIT),
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define_mask(TCP),
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define_mask(MSG),
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define_mask(SOCKET),
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define_mask(HEARTBEAT),
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define_mask(HB_BIO),
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define_mask(DLMFS),
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define_mask(DLM),
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define_mask(DLM_DOMAIN),
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define_mask(DLM_THREAD),
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define_mask(DLM_MASTER),
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define_mask(DLM_RECOVERY),
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define_mask(AIO),
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define_mask(JOURNAL),
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define_mask(DISK_ALLOC),
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define_mask(SUPER),
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define_mask(FILE_IO),
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define_mask(EXTENT_MAP),
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define_mask(DLM_GLUE),
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define_mask(BH_IO),
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define_mask(UPTODATE),
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define_mask(NAMEI),
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define_mask(INODE),
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define_mask(VOTE),
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define_mask(DCACHE),
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define_mask(CONN),
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define_mask(QUORUM),
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define_mask(EXPORT),
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define_mask(XATTR),
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define_mask(QUOTA),
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define_mask(REFCOUNT),
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define_mask(ERROR),
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define_mask(NOTICE),
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define_mask(KTHREAD),
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};
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static struct attribute *mlog_attr_ptrs[MLOG_MAX_BITS] = {NULL, };
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static ssize_t mlog_show(struct kobject *obj, struct attribute *attr,
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char *buf)
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{
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struct mlog_attribute *mlog_attr = to_mlog_attr(attr);
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return mlog_mask_show(mlog_attr->mask, buf);
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}
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static ssize_t mlog_store(struct kobject *obj, struct attribute *attr,
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const char *buf, size_t count)
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{
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struct mlog_attribute *mlog_attr = to_mlog_attr(attr);
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return mlog_mask_store(mlog_attr->mask, buf, count);
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}
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static struct sysfs_ops mlog_attr_ops = {
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.show = mlog_show,
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.store = mlog_store,
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};
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static struct kobj_type mlog_ktype = {
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.default_attrs = mlog_attr_ptrs,
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.sysfs_ops = &mlog_attr_ops,
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};
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static struct kset mlog_kset = {
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.kobj = {.ktype = &mlog_ktype},
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};
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int mlog_sys_init(struct kset *o2cb_kset)
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{
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int i = 0;
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while (mlog_attrs[i].attr.mode) {
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mlog_attr_ptrs[i] = &mlog_attrs[i].attr;
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i++;
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}
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mlog_attr_ptrs[i] = NULL;
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kobject_set_name(&mlog_kset.kobj, "logmask");
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mlog_kset.kobj.kset = o2cb_kset;
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return kset_register(&mlog_kset);
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}
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void mlog_sys_shutdown(void)
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{
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kset_unregister(&mlog_kset);
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}
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