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d7e09d03 PT |
1 | /* |
2 | * GPL HEADER START | |
3 | * | |
4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 only, | |
8 | * as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License version 2 for more details (a copy is included | |
14 | * in the LICENSE file that accompanied this code). | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * version 2 along with this program; If not, see | |
18 | * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf | |
19 | * | |
20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
21 | * CA 95054 USA or visit www.sun.com if you need additional information or | |
22 | * have any questions. | |
23 | * | |
24 | * GPL HEADER END | |
25 | */ | |
26 | /* | |
27 | * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. | |
28 | * Use is subject to license terms. | |
29 | */ | |
30 | /* | |
31 | * This file is part of Lustre, http://www.lustre.org/ | |
32 | * Lustre is a trademark of Sun Microsystems, Inc. | |
33 | * | |
34 | * libcfs/include/libcfs/libcfs_ioctl.h | |
35 | * | |
36 | * Low-level ioctl data structures. Kernel ioctl functions declared here, | |
37 | * and user space functions are in libcfsutil_ioctl.h. | |
38 | * | |
39 | */ | |
40 | ||
41 | #ifndef __LIBCFS_IOCTL_H__ | |
42 | #define __LIBCFS_IOCTL_H__ | |
43 | ||
44 | ||
45 | #define LIBCFS_IOCTL_VERSION 0x0001000a | |
46 | ||
47 | struct libcfs_ioctl_data { | |
48 | __u32 ioc_len; | |
49 | __u32 ioc_version; | |
50 | ||
51 | __u64 ioc_nid; | |
52 | __u64 ioc_u64[1]; | |
53 | ||
54 | __u32 ioc_flags; | |
55 | __u32 ioc_count; | |
56 | __u32 ioc_net; | |
57 | __u32 ioc_u32[7]; | |
58 | ||
59 | __u32 ioc_inllen1; | |
60 | char *ioc_inlbuf1; | |
61 | __u32 ioc_inllen2; | |
62 | char *ioc_inlbuf2; | |
63 | ||
64 | __u32 ioc_plen1; /* buffers in userspace */ | |
65 | char *ioc_pbuf1; | |
66 | __u32 ioc_plen2; /* buffers in userspace */ | |
67 | char *ioc_pbuf2; | |
68 | ||
69 | char ioc_bulk[0]; | |
70 | }; | |
71 | ||
e75fb87f | 72 | #define ioc_priority ioc_u32[0] |
d7e09d03 PT |
73 | |
74 | struct libcfs_ioctl_hdr { | |
75 | __u32 ioc_len; | |
76 | __u32 ioc_version; | |
77 | }; | |
78 | ||
79 | struct libcfs_debug_ioctl_data | |
80 | { | |
81 | struct libcfs_ioctl_hdr hdr; | |
82 | unsigned int subs; | |
83 | unsigned int debug; | |
84 | }; | |
85 | ||
86 | #define LIBCFS_IOC_INIT(data) \ | |
87 | do { \ | |
88 | memset(&data, 0, sizeof(data)); \ | |
89 | data.ioc_version = LIBCFS_IOCTL_VERSION; \ | |
90 | data.ioc_len = sizeof(data); \ | |
91 | } while (0) | |
92 | ||
93 | ||
94 | struct libcfs_ioctl_handler { | |
95 | struct list_head item; | |
96 | int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_data *data); | |
97 | }; | |
98 | ||
99 | #define DECLARE_IOCTL_HANDLER(ident, func) \ | |
100 | struct libcfs_ioctl_handler ident = { \ | |
101 | /* .item = */ LIST_HEAD_INIT(ident.item), \ | |
102 | /* .handle_ioctl = */ func \ | |
103 | } | |
104 | ||
105 | ||
106 | /* FIXME check conflict with lustre_lib.h */ | |
107 | #define LIBCFS_IOC_DEBUG_MASK _IOWR('f', 250, long) | |
108 | ||
109 | ||
110 | /* ioctls for manipulating snapshots 30- */ | |
111 | #define IOC_LIBCFS_TYPE 'e' | |
112 | #define IOC_LIBCFS_MIN_NR 30 | |
113 | /* libcfs ioctls */ | |
6be96847 PT |
114 | #define IOC_LIBCFS_PANIC _IOWR('e', 30, long) |
115 | #define IOC_LIBCFS_CLEAR_DEBUG _IOWR('e', 31, long) | |
116 | #define IOC_LIBCFS_MARK_DEBUG _IOWR('e', 32, long) | |
6be96847 PT |
117 | #define IOC_LIBCFS_MEMHOG _IOWR('e', 36, long) |
118 | #define IOC_LIBCFS_PING_TEST _IOWR('e', 37, long) | |
d7e09d03 | 119 | /* lnet ioctls */ |
6be96847 PT |
120 | #define IOC_LIBCFS_GET_NI _IOWR('e', 50, long) |
121 | #define IOC_LIBCFS_FAIL_NID _IOWR('e', 51, long) | |
122 | #define IOC_LIBCFS_ADD_ROUTE _IOWR('e', 52, long) | |
123 | #define IOC_LIBCFS_DEL_ROUTE _IOWR('e', 53, long) | |
124 | #define IOC_LIBCFS_GET_ROUTE _IOWR('e', 54, long) | |
125 | #define IOC_LIBCFS_NOTIFY_ROUTER _IOWR('e', 55, long) | |
126 | #define IOC_LIBCFS_UNCONFIGURE _IOWR('e', 56, long) | |
127 | #define IOC_LIBCFS_PORTALS_COMPATIBILITY _IOWR('e', 57, long) | |
128 | #define IOC_LIBCFS_LNET_DIST _IOWR('e', 58, long) | |
129 | #define IOC_LIBCFS_CONFIGURE _IOWR('e', 59, long) | |
130 | #define IOC_LIBCFS_TESTPROTOCOMPAT _IOWR('e', 60, long) | |
131 | #define IOC_LIBCFS_PING _IOWR('e', 61, long) | |
132 | #define IOC_LIBCFS_DEBUG_PEER _IOWR('e', 62, long) | |
133 | #define IOC_LIBCFS_LNETST _IOWR('e', 63, long) | |
d7e09d03 | 134 | /* lnd ioctls */ |
6be96847 PT |
135 | #define IOC_LIBCFS_REGISTER_MYNID _IOWR('e', 70, long) |
136 | #define IOC_LIBCFS_CLOSE_CONNECTION _IOWR('e', 71, long) | |
137 | #define IOC_LIBCFS_PUSH_CONNECTION _IOWR('e', 72, long) | |
138 | #define IOC_LIBCFS_GET_CONN _IOWR('e', 73, long) | |
139 | #define IOC_LIBCFS_DEL_PEER _IOWR('e', 74, long) | |
140 | #define IOC_LIBCFS_ADD_PEER _IOWR('e', 75, long) | |
141 | #define IOC_LIBCFS_GET_PEER _IOWR('e', 76, long) | |
142 | #define IOC_LIBCFS_GET_TXDESC _IOWR('e', 77, long) | |
143 | #define IOC_LIBCFS_ADD_INTERFACE _IOWR('e', 78, long) | |
144 | #define IOC_LIBCFS_DEL_INTERFACE _IOWR('e', 79, long) | |
145 | #define IOC_LIBCFS_GET_INTERFACE _IOWR('e', 80, long) | |
d7e09d03 PT |
146 | |
147 | #define IOC_LIBCFS_MAX_NR 80 | |
148 | ||
149 | static inline int libcfs_ioctl_packlen(struct libcfs_ioctl_data *data) | |
150 | { | |
151 | int len = sizeof(*data); | |
152 | len += cfs_size_round(data->ioc_inllen1); | |
153 | len += cfs_size_round(data->ioc_inllen2); | |
154 | return len; | |
155 | } | |
156 | ||
157 | static inline int libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data) | |
158 | { | |
159 | if (data->ioc_len > (1<<30)) { | |
160 | CERROR ("LIBCFS ioctl: ioc_len larger than 1<<30\n"); | |
161 | return 1; | |
162 | } | |
163 | if (data->ioc_inllen1 > (1<<30)) { | |
164 | CERROR ("LIBCFS ioctl: ioc_inllen1 larger than 1<<30\n"); | |
165 | return 1; | |
166 | } | |
167 | if (data->ioc_inllen2 > (1<<30)) { | |
168 | CERROR ("LIBCFS ioctl: ioc_inllen2 larger than 1<<30\n"); | |
169 | return 1; | |
170 | } | |
171 | if (data->ioc_inlbuf1 && !data->ioc_inllen1) { | |
172 | CERROR ("LIBCFS ioctl: inlbuf1 pointer but 0 length\n"); | |
173 | return 1; | |
174 | } | |
175 | if (data->ioc_inlbuf2 && !data->ioc_inllen2) { | |
176 | CERROR ("LIBCFS ioctl: inlbuf2 pointer but 0 length\n"); | |
177 | return 1; | |
178 | } | |
179 | if (data->ioc_pbuf1 && !data->ioc_plen1) { | |
180 | CERROR ("LIBCFS ioctl: pbuf1 pointer but 0 length\n"); | |
181 | return 1; | |
182 | } | |
183 | if (data->ioc_pbuf2 && !data->ioc_plen2) { | |
184 | CERROR ("LIBCFS ioctl: pbuf2 pointer but 0 length\n"); | |
185 | return 1; | |
186 | } | |
187 | if (data->ioc_plen1 && !data->ioc_pbuf1) { | |
188 | CERROR ("LIBCFS ioctl: plen1 nonzero but no pbuf1 pointer\n"); | |
189 | return 1; | |
190 | } | |
191 | if (data->ioc_plen2 && !data->ioc_pbuf2) { | |
192 | CERROR ("LIBCFS ioctl: plen2 nonzero but no pbuf2 pointer\n"); | |
193 | return 1; | |
194 | } | |
195 | if ((__u32)libcfs_ioctl_packlen(data) != data->ioc_len ) { | |
196 | CERROR ("LIBCFS ioctl: packlen != ioc_len\n"); | |
197 | return 1; | |
198 | } | |
199 | if (data->ioc_inllen1 && | |
200 | data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') { | |
201 | CERROR ("LIBCFS ioctl: inlbuf1 not 0 terminated\n"); | |
202 | return 1; | |
203 | } | |
204 | if (data->ioc_inllen2 && | |
205 | data->ioc_bulk[cfs_size_round(data->ioc_inllen1) + | |
206 | data->ioc_inllen2 - 1] != '\0') { | |
207 | CERROR ("LIBCFS ioctl: inlbuf2 not 0 terminated\n"); | |
208 | return 1; | |
209 | } | |
210 | return 0; | |
211 | } | |
212 | ||
213 | ||
214 | extern int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand); | |
215 | extern int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand); | |
216 | extern int libcfs_ioctl_getdata(char *buf, char *end, void *arg); | |
217 | extern int libcfs_ioctl_popdata(void *arg, void *buf, int size); | |
218 | ||
219 | ||
220 | #endif /* __LIBCFS_IOCTL_H__ */ |