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e554dffa60
- Proper ioctl() 32/64-bit binary compatibility. We need to ensure the ioctl data itself is always packed the same for 32/64-bit binaries. Additionally, the correct thing to do is encode this size in bytes as part of the command using _IOC_SIZE(). - Minor formatting changes to respect the 80 character limit. - Move all SPLAT_SUBSYSTEM_* defines in to splat-ctl.h. - Increase SPLAT_SUBSYSTEM_UNKNOWN because we were getting close to accidentally using it for a real registered subsystem.
111 lines
3.7 KiB
C
111 lines
3.7 KiB
C
/*
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* This file is part of the SPL: Solaris Porting Layer.
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*
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* Copyright (c) 2008 Lawrence Livermore National Security, LLC.
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* Produced at Lawrence Livermore National Laboratory
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* Written by:
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* Brian Behlendorf <behlendorf1@llnl.gov>,
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* Herb Wartens <wartens2@llnl.gov>,
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* Jim Garlick <garlick@llnl.gov>
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* UCRL-CODE-235197
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef _SPLAT_CTL_H
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#define _SPLAT_CTL_H
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#include <linux/types.h>
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/*
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* Contains shared definitions for both user space and kernel space. To
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* ensure 32-bit/64-bit interoperability over ioctl()'s only types with
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* fixed sizes can be used.
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*/
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#define SPLAT_MAJOR 225 /* XXX - Arbitrary */
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#define SPLAT_MINORS 1
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#define SPLAT_NAME "splatctl"
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#define SPLAT_DEV "/dev/splatctl"
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#define SPLAT_NAME_SIZE 20
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#define SPLAT_DESC_SIZE 60
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typedef struct splat_user {
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char name[SPLAT_NAME_SIZE]; /* Short name */
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char desc[SPLAT_DESC_SIZE]; /* Short description */
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__u32 id; /* Unique numeric id */
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} splat_user_t;
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#define SPLAT_CFG_MAGIC 0x15263748U
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typedef struct splat_cfg {
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__u32 cfg_magic; /* Unique magic */
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__u32 cfg_cmd; /* Configure command */
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__s32 cfg_arg1; /* Configure command arg 1 */
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__s32 cfg_rc1; /* Configure response 1 */
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union {
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struct {
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__u32 size;
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splat_user_t descs[0];
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} splat_subsystems;
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struct {
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__u32 size;
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splat_user_t descs[0];
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} splat_tests;
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} cfg_data;
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} splat_cfg_t;
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#define SPLAT_CMD_MAGIC 0x9daebfc0U
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typedef struct splat_cmd {
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__u32 cmd_magic; /* Unique magic */
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__u32 cmd_subsystem; /* Target subsystem */
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__u32 cmd_test; /* Subsystem test */
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__u32 cmd_data_size; /* Opaque data size */
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char cmd_data_str[0]; /* Opaque data region */
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} splat_cmd_t;
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/* Valid ioctls */
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#define SPLAT_CFG _IOWR('f', 101, splat_cfg_t)
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#define SPLAT_CMD _IOWR('f', 102, splat_cmd_t)
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/* Valid configuration commands */
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#define SPLAT_CFG_BUFFER_CLEAR 0x001 /* Clear text buffer */
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#define SPLAT_CFG_BUFFER_SIZE 0x002 /* Resize text buffer */
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#define SPLAT_CFG_SUBSYSTEM_COUNT 0x101 /* Number of subsystem */
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#define SPLAT_CFG_SUBSYSTEM_LIST 0x102 /* List of N subsystems */
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#define SPLAT_CFG_TEST_COUNT 0x201 /* Number of tests */
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#define SPLAT_CFG_TEST_LIST 0x202 /* List of N tests */
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/*
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* Valid subsystem and test commands are defined in each subsystem as
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* SPLAT_SUBSYSTEM_*. We do need to be careful to avoid collisions, the
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* currently defined subsystems are as follows:
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*/
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#define SPLAT_SUBSYSTEM_KMEM 0x0100
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#define SPLAT_SUBSYSTEM_TASKQ 0x0200
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#define SPLAT_SUBSYSTEM_KRNG 0x0300
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#define SPLAT_SUBSYSTEM_MUTEX 0x0400
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#define SPLAT_SUBSYSTEM_CONDVAR 0x0500
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#define SPLAT_SUBSYSTEM_THREAD 0x0600
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#define SPLAT_SUBSYSTEM_RWLOCK 0x0700
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#define SPLAT_SUBSYSTEM_TIME 0x0800
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#define SPLAT_SUBSYSTEM_VNODE 0x0900
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#define SPLAT_SUBSYSTEM_KOBJ 0x0a00
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#define SPLAT_SUBSYSTEM_ATOMIC 0x0b00
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#define SPLAT_SUBSYSTEM_LIST 0x0c00
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#define SPLAT_SUBSYSTEM_GENERIC 0x0d00
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#define SPLAT_SUBSYSTEM_UNKNOWN 0xff00
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#endif /* _SPLAT_CTL_H */
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