| /* |
| * 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 */ |
| void __user *ioc_pbuf1; |
| __u32 ioc_plen2; /* buffers in userspace */ |
| void __user *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) |
| |
| #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) |
| /* 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) |
| /* ioctl 77 is free for use */ |
| #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 __user *arg); |
| int libcfs_ioctl_popdata(void __user *arg, void *buf, int size); |
| |
| #endif /* __LIBCFS_IOCTL_H__ */ |