1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #define LUSTRE_CFG_VERSION 0x00010001
28 enum lcfg_command_type {
29 LCFG_ATTACH = 0x00cf001,
30 LCFG_DETACH = 0x00cf002,
31 LCFG_SETUP = 0x00cf003,
32 LCFG_CLEANUP = 0x00cf004,
33 LCFG_ADD_UUID = 0x00cf005,
34 LCFG_DEL_UUID = 0x00cf006,
35 LCFG_MOUNTOPT = 0x00cf007,
36 LCFG_DEL_MOUNTOPT = 0x00cf008,
37 LCFG_SET_TIMEOUT = 0x00cf009,
38 LCFG_SET_UPCALL = 0x00cf00a,
39 LCFG_LOV_ADD_OBD = 0x00cf00b,
40 LCFG_LOV_DEL_OBD = 0x00cf00c,
41 LCFG_ADD_CONN = 0x00cf00d,
42 LCFG_DEL_CONN = 0x00cf00e,
46 uint32_t lcfg_version;
47 uint32_t lcfg_command;
54 /* inline buffers for various arguments */
55 uint32_t lcfg_dev_namelen;
57 uint32_t lcfg_inllen1;
59 uint32_t lcfg_inllen2;
61 uint32_t lcfg_inllen3;
63 uint32_t lcfg_inllen4;
65 uint32_t lcfg_inllen5;
67 uint32_t lcfg_inllen6;
74 #define LCFG_INIT(l, cmd, name) \
76 memset(&(l), 0, sizeof(l)); \
77 (l).lcfg_version = LUSTRE_CFG_VERSION; \
78 (l).lcfg_command = (cmd); \
80 (l).lcfg_dev_namelen = strlen(name) + 1; \
81 (l).lcfg_dev_name = name; \
87 static inline int lustre_cfg_packlen(struct lustre_cfg *lcfg)
89 int len = size_round(sizeof(struct lustre_cfg));
90 len += size_round(lcfg->lcfg_dev_namelen);
91 len += size_round(lcfg->lcfg_inllen1);
92 len += size_round(lcfg->lcfg_inllen2);
93 len += size_round(lcfg->lcfg_inllen3);
94 len += size_round(lcfg->lcfg_inllen4);
95 len += size_round(lcfg->lcfg_inllen5);
96 len += size_round(lcfg->lcfg_inllen6);
97 return size_round(len);
100 static inline int lustre_cfg_pack(struct lustre_cfg *data, char **pbuf,
104 struct lustre_cfg *overlay;
107 len = lustre_cfg_packlen(data);
109 data->lcfg_version = LUSTRE_CFG_VERSION;
111 if (*pbuf && len > max)
118 overlay = (struct lustre_cfg *)*pbuf;
119 memcpy(*pbuf, data, sizeof(*data));
121 ptr = overlay->lcfg_bulk;
122 if (data->lcfg_dev_name)
123 LOGL(data->lcfg_dev_name, data->lcfg_dev_namelen, ptr);
124 if (data->lcfg_inlbuf1)
125 LOGL(data->lcfg_inlbuf1, data->lcfg_inllen1, ptr);
126 if (data->lcfg_inlbuf2)
127 LOGL(data->lcfg_inlbuf2, data->lcfg_inllen2, ptr);
128 if (data->lcfg_inlbuf3)
129 LOGL(data->lcfg_inlbuf3, data->lcfg_inllen3, ptr);
130 if (data->lcfg_inlbuf4)
131 LOGL(data->lcfg_inlbuf4, data->lcfg_inllen4, ptr);
132 if (data->lcfg_inlbuf5)
133 LOGL(data->lcfg_inlbuf5, data->lcfg_inllen5, ptr);
134 if (data->lcfg_inlbuf6)
135 LOGL(data->lcfg_inlbuf6, data->lcfg_inllen6, ptr);
142 static inline int lustre_cfg_unpack(struct lustre_cfg *data, char *pbuf,
146 struct lustre_cfg *overlay;
150 overlay = (struct lustre_cfg *)pbuf;
152 /* Preserve the caller's buffer pointers */
153 overlay->lcfg_dev_name = data->lcfg_dev_name;
154 overlay->lcfg_inlbuf1 = data->lcfg_inlbuf1;
155 overlay->lcfg_inlbuf2 = data->lcfg_inlbuf2;
156 overlay->lcfg_inlbuf3 = data->lcfg_inlbuf3;
157 overlay->lcfg_inlbuf4 = data->lcfg_inlbuf4;
158 overlay->lcfg_inlbuf5 = data->lcfg_inlbuf5;
159 overlay->lcfg_inlbuf6 = data->lcfg_inlbuf6;
161 memcpy(data, pbuf, sizeof(*data));
163 ptr = overlay->lcfg_bulk;
164 if (data->lcfg_dev_name)
165 LOGU(data->lcfg_dev_name, data->lcfg_dev_namelen, ptr);
166 if (data->lcfg_inlbuf1)
167 LOGU(data->lcfg_inlbuf1, data->lcfg_inllen1, ptr);
168 if (data->lcfg_inlbuf2)
169 LOGU(data->lcfg_inlbuf2, data->lcfg_inllen2, ptr);
170 if (data->lcfg_inlbuf3)
171 LOGU(data->lcfg_inlbuf3, data->lcfg_inllen3, ptr);
172 if (data->lcfg_inlbuf4)
173 LOGU(data->lcfg_inlbuf4, data->lcfg_inllen4, ptr);
174 if (data->lcfg_inlbuf5)
175 LOGU(data->lcfg_inlbuf5, data->lcfg_inllen5, ptr);
176 if (data->lcfg_inlbuf6)
177 LOGU(data->lcfg_inlbuf6, data->lcfg_inllen6, ptr);
183 #include <linux/obd_support.h>
185 static inline int lustre_cfg_getdata(char **buf, int len, void *arg, int kernel)
187 struct lustre_cfg *lcfg;
191 if (len > OBD_MAX_IOCTL_BUFFER) {
192 CERROR("User buffer len %d exceeds %d max buffer\n",
193 len, OBD_MAX_IOCTL_BUFFER);
197 if (len < sizeof(struct lustre_cfg)) {
198 CERROR("OBD: user buffer too small for lustre_cfg\n");
202 /* XXX allocate this more intelligently, using kmalloc when
204 OBD_ALLOC(*buf, len);
206 CERROR("Cannot allocate control buffer of len %d\n", len);
211 memcpy(*buf, (void *)arg, len);
213 err = copy_from_user(*buf, (void *)arg, len);
218 lcfg = (struct lustre_cfg *)*buf;
220 if (lcfg->lcfg_version != LUSTRE_CFG_VERSION) {
221 CERROR("Version mismatch kernel: %#x application: %#x\n",
222 LUSTRE_CFG_VERSION, lcfg->lcfg_version);
227 if (lcfg->lcfg_dev_name) {
228 lcfg->lcfg_dev_name = &lcfg->lcfg_bulk[0];
229 offset += size_round(lcfg->lcfg_dev_namelen);
232 if (lcfg->lcfg_inllen1) {
233 lcfg->lcfg_inlbuf1 = &lcfg->lcfg_bulk[0] + offset;
234 offset += size_round(lcfg->lcfg_inllen1);
237 if (lcfg->lcfg_inllen2) {
238 lcfg->lcfg_inlbuf2 = &lcfg->lcfg_bulk[0] + offset;
239 offset += size_round(lcfg->lcfg_inllen2);
242 if (lcfg->lcfg_inllen3) {
243 lcfg->lcfg_inlbuf3 = &lcfg->lcfg_bulk[0] + offset;
244 offset += size_round(lcfg->lcfg_inllen3);
247 if (lcfg->lcfg_inllen4) {
248 lcfg->lcfg_inlbuf4 = &lcfg->lcfg_bulk[0] + offset;
249 offset += size_round(lcfg->lcfg_inllen4);
252 if (lcfg->lcfg_inllen5) {
253 lcfg->lcfg_inlbuf5 = &lcfg->lcfg_bulk[0] + offset;
254 offset += size_round(lcfg->lcfg_inllen5);
257 if (lcfg->lcfg_inllen6)
258 lcfg->lcfg_inlbuf6 = &lcfg->lcfg_bulk[0] + offset;
264 static inline void lustre_cfg_freedata(char *buf, int len)
273 /* Passed by mount */
274 struct lustre_mount_data {
276 uint32_t lmd_version;
277 uint64_t lmd_local_nid;
278 uint64_t lmd_server_nid;
280 uint32_t lmd_server_ipaddr;
283 char lmd_profile[64];
287 #endif // _LUSTRE_CFG_H