| /* -*- mode: c; c-basic-offset: 8; -*- |
| * vim: noexpandtab sw=8 ts=8 sts=0: |
| * |
| * Copyright (C) 2004, 2005 Oracle. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * 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 for more details. |
| * |
| * You should have received a copy of the GNU General Public |
| * License along with this program; if not, write to the |
| * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 021110-1307, USA. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/proc_fs.h> |
| #include <linux/seq_file.h> |
| #include <linux/string.h> |
| #include <asm/uaccess.h> |
| |
| #include "masklog.h" |
| |
| struct mlog_bits mlog_and_bits = MLOG_BITS_RHS(MLOG_INITIAL_AND_MASK); |
| EXPORT_SYMBOL_GPL(mlog_and_bits); |
| struct mlog_bits mlog_not_bits = MLOG_BITS_RHS(0); |
| EXPORT_SYMBOL_GPL(mlog_not_bits); |
| |
| static ssize_t mlog_mask_show(u64 mask, char *buf) |
| { |
| char *state; |
| |
| if (__mlog_test_u64(mask, mlog_and_bits)) |
| state = "allow"; |
| else if (__mlog_test_u64(mask, mlog_not_bits)) |
| state = "deny"; |
| else |
| state = "off"; |
| |
| return snprintf(buf, PAGE_SIZE, "%s\n", state); |
| } |
| |
| static ssize_t mlog_mask_store(u64 mask, const char *buf, size_t count) |
| { |
| if (!strnicmp(buf, "allow", 5)) { |
| __mlog_set_u64(mask, mlog_and_bits); |
| __mlog_clear_u64(mask, mlog_not_bits); |
| } else if (!strnicmp(buf, "deny", 4)) { |
| __mlog_set_u64(mask, mlog_not_bits); |
| __mlog_clear_u64(mask, mlog_and_bits); |
| } else if (!strnicmp(buf, "off", 3)) { |
| __mlog_clear_u64(mask, mlog_not_bits); |
| __mlog_clear_u64(mask, mlog_and_bits); |
| } else |
| return -EINVAL; |
| |
| return count; |
| } |
| |
| struct mlog_attribute { |
| struct attribute attr; |
| u64 mask; |
| }; |
| |
| #define to_mlog_attr(_attr) container_of(_attr, struct mlog_attribute, attr) |
| |
| #define define_mask(_name) { \ |
| .attr = { \ |
| .name = #_name, \ |
| .mode = S_IRUGO | S_IWUSR, \ |
| }, \ |
| .mask = ML_##_name, \ |
| } |
| |
| static struct mlog_attribute mlog_attrs[MLOG_MAX_BITS] = { |
| define_mask(TCP), |
| define_mask(MSG), |
| define_mask(SOCKET), |
| define_mask(HEARTBEAT), |
| define_mask(HB_BIO), |
| define_mask(DLMFS), |
| define_mask(DLM), |
| define_mask(DLM_DOMAIN), |
| define_mask(DLM_THREAD), |
| define_mask(DLM_MASTER), |
| define_mask(DLM_RECOVERY), |
| define_mask(AIO), |
| define_mask(JOURNAL), |
| define_mask(SUPER), |
| define_mask(DLM_GLUE), |
| define_mask(BH_IO), |
| define_mask(UPTODATE), |
| define_mask(NAMEI), |
| define_mask(VOTE), |
| define_mask(DCACHE), |
| define_mask(CONN), |
| define_mask(QUORUM), |
| define_mask(EXPORT), |
| define_mask(XATTR), |
| define_mask(QUOTA), |
| define_mask(BASTS), |
| define_mask(RESERVATIONS), |
| define_mask(CLUSTER), |
| define_mask(ERROR), |
| define_mask(NOTICE), |
| define_mask(KTHREAD), |
| }; |
| |
| static struct attribute *mlog_attr_ptrs[MLOG_MAX_BITS] = {NULL, }; |
| |
| static ssize_t mlog_show(struct kobject *obj, struct attribute *attr, |
| char *buf) |
| { |
| struct mlog_attribute *mlog_attr = to_mlog_attr(attr); |
| |
| return mlog_mask_show(mlog_attr->mask, buf); |
| } |
| |
| static ssize_t mlog_store(struct kobject *obj, struct attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct mlog_attribute *mlog_attr = to_mlog_attr(attr); |
| |
| return mlog_mask_store(mlog_attr->mask, buf, count); |
| } |
| |
| static const struct sysfs_ops mlog_attr_ops = { |
| .show = mlog_show, |
| .store = mlog_store, |
| }; |
| |
| static struct kobj_type mlog_ktype = { |
| .default_attrs = mlog_attr_ptrs, |
| .sysfs_ops = &mlog_attr_ops, |
| }; |
| |
| static struct kset mlog_kset = { |
| .kobj = {.ktype = &mlog_ktype}, |
| }; |
| |
| int mlog_sys_init(struct kset *o2cb_kset) |
| { |
| int i = 0; |
| |
| while (mlog_attrs[i].attr.mode) { |
| mlog_attr_ptrs[i] = &mlog_attrs[i].attr; |
| i++; |
| } |
| mlog_attr_ptrs[i] = NULL; |
| |
| kobject_set_name(&mlog_kset.kobj, "logmask"); |
| mlog_kset.kobj.kset = o2cb_kset; |
| return kset_register(&mlog_kset); |
| } |
| |
| void mlog_sys_shutdown(void) |
| { |
| kset_unregister(&mlog_kset); |
| } |