summaryrefslogtreecommitdiff
path: root/source3/modules/vfs_onefs.c
blob: f277245bdc040feaaebd5352a09a8e3353e19794 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
/*
 * Unix SMB/CIFS implementation.
 * Support for OneFS
 *
 * Copyright (C) Tim Prouty, 2008
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

#include "includes.h"
#include "onefs.h"
#include "onefs_config.h"

#undef DBGC_CLASS
#define DBGC_CLASS DBGC_VFS

static int onefs_connect(struct vfs_handle_struct *handle, const char *service,
			 const char *user)
{
	int ret;

	ret = onefs_load_config(handle->conn);
	if (ret) {
		DEBUG(3, ("Load config failed: %s\n", strerror(errno)));
		return ret;
	}

	return SMB_VFS_NEXT_CONNECT(handle, service, user);
}

static int onefs_mkdir(vfs_handle_struct *handle, const char *path,
		       mode_t mode)
{
	/* SMB_VFS_MKDIR should never be called in vfs_onefs */
	SMB_ASSERT(false);
	return SMB_VFS_NEXT_MKDIR(handle, path, mode);
}

static int onefs_open(vfs_handle_struct *handle, const char *fname,
		      files_struct *fsp, int flags, mode_t mode)
{
	/* SMB_VFS_OPEN should never be called in vfs_onefs */
	SMB_ASSERT(false);
	return SMB_VFS_NEXT_OPEN(handle, fname, fsp, flags, mode);
}

static ssize_t onefs_sendfile(vfs_handle_struct *handle, int tofd,
			      files_struct *fromfsp, const DATA_BLOB *header,
			      SMB_OFF_T offset, size_t count)
{
	ssize_t result;

	START_PROFILE_BYTES(syscall_sendfile, count);
	result = onefs_sys_sendfile(handle->conn, tofd, fromfsp->fh->fd,
				    header, offset, count);
	END_PROFILE(syscall_sendfile);
	return result;
}

static ssize_t onefs_recvfile(vfs_handle_struct *handle, int fromfd,
			      files_struct *tofsp, SMB_OFF_T offset,
			      size_t count)
{
	ssize_t result;

	START_PROFILE_BYTES(syscall_recvfile, count);
	result = onefs_sys_recvfile(fromfd, tofsp->fh->fd, offset, count);
	END_PROFILE(syscall_recvfile);
	return result;
}

static uint64_t onefs_get_alloc_size(struct vfs_handle_struct *handle,
				     files_struct *fsp,
				     const SMB_STRUCT_STAT *sbuf)
{
	uint64_t result;

	START_PROFILE(syscall_get_alloc_size);

	if(S_ISDIR(sbuf->st_mode)) {
		result = 0;
		goto out;
	}

	/* Just use the file size since st_blocks is unreliable on OneFS. */
	result = get_file_size_stat(sbuf);

	if (fsp && fsp->initial_allocation_size)
		result = MAX(result,fsp->initial_allocation_size);

	result = smb_roundup(handle->conn, result);

 out:
	END_PROFILE(syscall_get_alloc_size);
	return result;
}

static struct file_id onefs_file_id_create(struct vfs_handle_struct *handle,
					     SMB_STRUCT_STAT *sbuf)
{
	struct file_id key;

	/* the ZERO_STRUCT ensures padding doesn't break using the key as a
	 * blob */
	ZERO_STRUCT(key);

	key.devid = sbuf->st_dev;
	key.inode = sbuf->st_ino;
	key.extid = sbuf->st_snapid;

	return key;
}

static int onefs_statvfs(vfs_handle_struct *handle, const char *path,
			 vfs_statvfs_struct *statbuf)
{
	struct statvfs statvfs_buf;
	int result;

	DEBUG(5, ("Calling SMB_STAT_VFS \n"));
	result = statvfs(path, &statvfs_buf);
	ZERO_STRUCTP(statbuf);

	if (!result) {
		statbuf->OptimalTransferSize = statvfs_buf.f_iosize;
		statbuf->BlockSize = statvfs_buf.f_bsize;
		statbuf->TotalBlocks = statvfs_buf.f_blocks;
		statbuf->BlocksAvail = statvfs_buf.f_bfree;
		statbuf->UserBlocksAvail = statvfs_buf.f_bavail;
		statbuf->TotalFileNodes = statvfs_buf.f_files;
		statbuf->FreeFileNodes = statvfs_buf.f_ffree;
		statbuf->FsIdentifier =
		    (((uint64_t)statvfs_buf.f_fsid.val[0]<<32) &
			0xffffffff00000000LL) |
		    (uint64_t)statvfs_buf.f_fsid.val[1];
	}
        return result;
}

static int onefs_get_real_filename(vfs_handle_struct *handle, const char *path,
				   const char *name, TALLOC_CTX *mem_ctx,
				   char **found_name)
{
	SMB_STRUCT_STAT sb;
	struct stat_extra se;
	int result;
	char *full_name = NULL;

	ZERO_STRUCT(se);
	se.se_version = ESTAT_CURRENT_VERSION;
	se.se_flags = ESTAT_CASE_INSENSITIVE | ESTAT_SYMLINK_NOFOLLOW;

	if (*path != '\0') {
		if (!(full_name = talloc_asprintf(mem_ctx, "%s/%s", path, name))) {
			errno = ENOMEM;
			DEBUG(2, ("talloc_asprintf failed\n"));
			result = -1;
			goto done;
		}
	}

	if ((result = estat(full_name ? full_name : name, &sb, &se)) != 0) {
		DEBUG(2, ("error calling estat: %s\n", strerror(errno)));
		goto done;
	}

	*found_name = talloc_strdup(mem_ctx, se.se_realname);
	if (*found_name == NULL) {
		errno = ENOMEM;
		result = -1;
		goto done;
	}

done:
	TALLOC_FREE(full_name);
	return result;
}

static int onefs_ntimes(vfs_handle_struct *handle, const char *fname,
			struct smb_file_time *ft)
{
	int flags = 0;
	struct timespec times[3];

	if (!null_timespec(ft->atime)) {
		flags |= VT_ATIME;
		times[0] = ft->atime;
		DEBUG(6,("**** onefs_ntimes: actime: %s.%d\n",
			time_to_asc(convert_timespec_to_time_t(ft->atime)),
			ft->atime.tv_nsec));
	}

	if (!null_timespec(ft->mtime)) {
		flags |= VT_MTIME;
		times[1] = ft->mtime;
		DEBUG(6,("**** onefs_ntimes: modtime: %s.%d\n",
			time_to_asc(convert_timespec_to_time_t(ft->mtime)),
			ft->mtime.tv_nsec));
	}

	if (!null_timespec(ft->create_time)) {
		flags |= VT_BTIME;
		times[2] = ft->create_time;
		DEBUG(6,("**** onefs_ntimes: createtime: %s.%d\n",
		   time_to_asc(convert_timespec_to_time_t(ft->create_time)),
		   ft->create_time.tv_nsec));
	}

	return onefs_vtimes_streams(handle, fname, flags, times);
}

static uint32_t onefs_fs_capabilities(struct vfs_handle_struct *handle)
{
	return SMB_VFS_NEXT_FS_CAPABILITIES(handle) | FILE_NAMED_STREAMS;
}

static vfs_op_tuple onefs_ops[] = {
	{SMB_VFS_OP(onefs_connect), SMB_VFS_OP_CONNECT,
	 SMB_VFS_LAYER_TRANSPARENT},
	{SMB_VFS_OP(onefs_fs_capabilities), SMB_VFS_OP_FS_CAPABILITIES,
	 SMB_VFS_LAYER_TRANSPARENT},
	{SMB_VFS_OP(onefs_opendir), SMB_VFS_OP_OPENDIR,
	 SMB_VFS_LAYER_TRANSPARENT},
	{SMB_VFS_OP(onefs_readdir), SMB_VFS_OP_READDIR,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_seekdir), SMB_VFS_OP_SEEKDIR,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_telldir), SMB_VFS_OP_TELLDIR,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_rewinddir), SMB_VFS_OP_REWINDDIR,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_mkdir), SMB_VFS_OP_MKDIR,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_closedir), SMB_VFS_OP_CLOSEDIR,
	 SMB_VFS_LAYER_TRANSPARENT},
	{SMB_VFS_OP(onefs_init_search_op), SMB_VFS_OP_INIT_SEARCH_OP,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_open), SMB_VFS_OP_OPEN,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_create_file), SMB_VFS_OP_CREATE_FILE,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_close), SMB_VFS_OP_CLOSE,
	 SMB_VFS_LAYER_TRANSPARENT},
	{SMB_VFS_OP(onefs_sendfile), SMB_VFS_OP_SENDFILE,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_recvfile), SMB_VFS_OP_RECVFILE,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_rename), SMB_VFS_OP_RENAME,
	 SMB_VFS_LAYER_TRANSPARENT},
	{SMB_VFS_OP(onefs_stat), SMB_VFS_OP_STAT,
	 SMB_VFS_LAYER_TRANSPARENT},
	{SMB_VFS_OP(onefs_fstat), SMB_VFS_OP_FSTAT,
	 SMB_VFS_LAYER_TRANSPARENT},
	{SMB_VFS_OP(onefs_lstat), SMB_VFS_OP_LSTAT,
	 SMB_VFS_LAYER_TRANSPARENT},
	{SMB_VFS_OP(onefs_get_alloc_size), SMB_VFS_OP_GET_ALLOC_SIZE,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_unlink), SMB_VFS_OP_UNLINK,
	 SMB_VFS_LAYER_TRANSPARENT},
	{SMB_VFS_OP(onefs_ntimes), SMB_VFS_OP_NTIMES,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_chflags), SMB_VFS_OP_CHFLAGS,
	 SMB_VFS_LAYER_TRANSPARENT},
	{SMB_VFS_OP(onefs_file_id_create), SMB_VFS_OP_FILE_ID_CREATE,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_streaminfo), SMB_VFS_OP_STREAMINFO,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_brl_lock_windows), SMB_VFS_OP_BRL_LOCK_WINDOWS,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_brl_unlock_windows), SMB_VFS_OP_BRL_UNLOCK_WINDOWS,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_brl_cancel_windows), SMB_VFS_OP_BRL_CANCEL_WINDOWS,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_notify_watch), SMB_VFS_OP_NOTIFY_WATCH,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_fget_nt_acl), SMB_VFS_OP_FGET_NT_ACL,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_get_nt_acl), SMB_VFS_OP_GET_NT_ACL,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_fset_nt_acl), SMB_VFS_OP_FSET_NT_ACL,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_statvfs), SMB_VFS_OP_STATVFS,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(onefs_get_real_filename), SMB_VFS_OP_GET_REAL_FILENAME,
	 SMB_VFS_LAYER_OPAQUE},
	{SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
};

NTSTATUS vfs_onefs_init(void)
{
	return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "onefs",
				onefs_ops);
}