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/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* 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.
*
* 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).
*
* 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.
*
* GPL HEADER END
*/
/*
* Copyright (c) 2008, 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.
*
* libcfs/include/libcfs/libcfs_ioctl.h
*
* Low-level ioctl data structures. Kernel ioctl functions declared here,
* and user space functions are in libcfsutil_ioctl.h.
*
*/
#ifndef __LIBCFS_IOCTL_H__
#define __LIBCFS_IOCTL_H__
#define LIBCFS_IOCTL_VERSION 0x0001000a
struct libcfs_ioctl_data {
__u32 ioc_len;
__u32 ioc_version;
__u64 ioc_nid;
__u64 ioc_u64[1];
__u32 ioc_flags;
__u32 ioc_count;
__u32 ioc_net;
__u32 ioc_u32[7];
__u32 ioc_inllen1;
char *ioc_inlbuf1;
__u32 ioc_inllen2;
char *ioc_inlbuf2;
__u32 ioc_plen1; /* buffers in userspace */
char *ioc_pbuf1;
__u32 ioc_plen2; /* buffers in userspace */
char *ioc_pbuf2;
char ioc_bulk[0];
};
#define ioc_priority ioc_u32[0]
struct libcfs_ioctl_hdr {
__u32 ioc_len;
__u32 ioc_version;
};
struct libcfs_debug_ioctl_data {
struct libcfs_ioctl_hdr hdr;
unsigned int subs;
unsigned int debug;
};
#define LIBCFS_IOC_INIT(data) \
do { \
memset(&data, 0, sizeof(data)); \
data.ioc_version = LIBCFS_IOCTL_VERSION; \
data.ioc_len = sizeof(data); \
} while (0)
struct libcfs_ioctl_handler {
struct list_head item;
int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_data *data);
};
#define DECLARE_IOCTL_HANDLER(ident, func) \
struct libcfs_ioctl_handler ident = { \
/* .item = */ LIST_HEAD_INIT(ident.item), \
/* .handle_ioctl = */ func \
}
/* FIXME check conflict with lustre_lib.h */
#define LIBCFS_IOC_DEBUG_MASK _IOWR('f', 250, long)
/* ioctls for manipulating snapshots 30- */
#define IOC_LIBCFS_TYPE 'e'
#define IOC_LIBCFS_MIN_NR 30
/* libcfs ioctls */
#define IOC_LIBCFS_PANIC _IOWR('e', 30, long)
#define IOC_LIBCFS_CLEAR_DEBUG _IOWR('e', 31, long)
#define IOC_LIBCFS_MARK_DEBUG _IOWR('e', 32, long)
#define IOC_LIBCFS_MEMHOG _IOWR('e', 36, long)
#define IOC_LIBCFS_PING_TEST _IOWR('e', 37, long)
/* lnet ioctls */
#define IOC_LIBCFS_GET_NI _IOWR('e', 50, long)
#define IOC_LIBCFS_FAIL_NID _IOWR('e', 51, long)
#define IOC_LIBCFS_ADD_ROUTE _IOWR('e', 52, long)
#define IOC_LIBCFS_DEL_ROUTE _IOWR('e', 53, long)
#define IOC_LIBCFS_GET_ROUTE _IOWR('e', 54, long)
#define IOC_LIBCFS_NOTIFY_ROUTER _IOWR('e', 55, long)
#define IOC_LIBCFS_UNCONFIGURE _IOWR('e', 56, long)
#define IOC_LIBCFS_PORTALS_COMPATIBILITY _IOWR('e', 57, long)
#define IOC_LIBCFS_LNET_DIST _IOWR('e', 58, long)
#define IOC_LIBCFS_CONFIGURE _IOWR('e', 59, long)
#define IOC_LIBCFS_TESTPROTOCOMPAT _IOWR('e', 60, long)
#define IOC_LIBCFS_PING _IOWR('e', 61, long)
#define IOC_LIBCFS_DEBUG_PEER _IOWR('e', 62, long)
#define IOC_LIBCFS_LNETST _IOWR('e', 63, long)
/* lnd ioctls */
#define IOC_LIBCFS_REGISTER_MYNID _IOWR('e', 70, long)
#define IOC_LIBCFS_CLOSE_CONNECTION _IOWR('e', 71, long)
#define IOC_LIBCFS_PUSH_CONNECTION _IOWR('e', 72, long)
#define IOC_LIBCFS_GET_CONN _IOWR('e', 73, long)
#define IOC_LIBCFS_DEL_PEER _IOWR('e', 74, long)
#define IOC_LIBCFS_ADD_PEER _IOWR('e', 75, long)
#define IOC_LIBCFS_GET_PEER _IOWR('e', 76, long)
#define IOC_LIBCFS_GET_TXDESC _IOWR('e', 77, long)
#define IOC_LIBCFS_ADD_INTERFACE _IOWR('e', 78, long)
#define IOC_LIBCFS_DEL_INTERFACE _IOWR('e', 79, long)
#define IOC_LIBCFS_GET_INTERFACE _IOWR('e', 80, long)
#define IOC_LIBCFS_MAX_NR 80
static inline int libcfs_ioctl_packlen(struct libcfs_ioctl_data *data)
{
int len = sizeof(*data);
len += cfs_size_round(data->ioc_inllen1);
len += cfs_size_round(data->ioc_inllen2);
return len;
}
static inline int libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data)
{
if (data->ioc_len > (1<<30)) {
CERROR("LIBCFS ioctl: ioc_len larger than 1<<30\n");
return 1;
}
if (data->ioc_inllen1 > (1<<30)) {
CERROR("LIBCFS ioctl: ioc_inllen1 larger than 1<<30\n");
return 1;
}
if (data->ioc_inllen2 > (1<<30)) {
CERROR("LIBCFS ioctl: ioc_inllen2 larger than 1<<30\n");
return 1;
}
if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
CERROR("LIBCFS ioctl: inlbuf1 pointer but 0 length\n");
return 1;
}
if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
CERROR("LIBCFS ioctl: inlbuf2 pointer but 0 length\n");
return 1;
}
if (data->ioc_pbuf1 && !data->ioc_plen1) {
CERROR("LIBCFS ioctl: pbuf1 pointer but 0 length\n");
return 1;
}
if (data->ioc_pbuf2 && !data->ioc_plen2) {
CERROR("LIBCFS ioctl: pbuf2 pointer but 0 length\n");
return 1;
}
if (data->ioc_plen1 && !data->ioc_pbuf1) {
CERROR("LIBCFS ioctl: plen1 nonzero but no pbuf1 pointer\n");
return 1;
}
if (data->ioc_plen2 && !data->ioc_pbuf2) {
CERROR("LIBCFS ioctl: plen2 nonzero but no pbuf2 pointer\n");
return 1;
}
if ((__u32)libcfs_ioctl_packlen(data) != data->ioc_len) {
CERROR("LIBCFS ioctl: packlen != ioc_len\n");
return 1;
}
if (data->ioc_inllen1 &&
data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') {
CERROR("LIBCFS ioctl: inlbuf1 not 0 terminated\n");
return 1;
}
if (data->ioc_inllen2 &&
data->ioc_bulk[cfs_size_round(data->ioc_inllen1) +
data->ioc_inllen2 - 1] != '\0') {
CERROR("LIBCFS ioctl: inlbuf2 not 0 terminated\n");
return 1;
}
return 0;
}
int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand);
int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand);
int libcfs_ioctl_getdata(char *buf, char *end, void *arg);
int libcfs_ioctl_popdata(void *arg, void *buf, int size);
#endif /* __LIBCFS_IOCTL_H__ */
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