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samba-mirror/source3/modules/vfs_onefs.c
Jeremy Allison 8303bc49a4 Restructure the connect function code to always call
down to NEXT-> before initializing. This allows us to
do cleanup (by calling DISCONNECT) if initialization
fails. Also fix vfs_acl_xattr which was failing to
call the NEXT connect function.
Jeremy.
2009-11-30 15:53:04 -08:00

299 lines
7.8 KiB
C

/*
* 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 = SMB_VFS_NEXT_CONNECT(handle, service, user);
if (ret < 0) {
return ret;
}
ret = onefs_load_config(handle->conn);
if (ret) {
SMB_VFS_NEXT_DISCONNECT(handle);
DEBUG(3, ("Load config failed: %s\n", strerror(errno)));
return ret;
}
return 0;
}
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,
struct smb_filename *smb_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, smb_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_ex_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,
const 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_ex_dev;
key.inode = sbuf->st_ex_ino;
key.extid = sbuf->vfs_private;
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)
{
struct stat sb;
struct connection_struct *conn = handle->conn;
struct stat_extra se;
int result;
char *unmangled_name = NULL;
char *full_name = NULL;
/* First demangle the name if necessary. */
if (!conn->case_sensitive && mangle_is_mangled(name, conn->params) &&
mangle_lookup_name_from_8_3(mem_ctx, name, &unmangled_name,
conn->params)) {
/* Name is now unmangled. */
name = unmangled_name;
}
/* Do the case insensitive stat. */
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);
TALLOC_FREE(unmangled_name);
return result;
}
static int onefs_ntimes(vfs_handle_struct *handle,
const struct smb_filename *smb_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, smb_fname, flags, times);
}
static uint32_t onefs_fs_capabilities(struct vfs_handle_struct *handle, enum timestamp_set_resolution *p_ts_res)
{
uint32_t result = 0;
if (!lp_parm_bool(SNUM(handle->conn), PARM_ONEFS_TYPE,
PARM_IGNORE_STREAMS, PARM_IGNORE_STREAMS_DEFAULT)) {
result |= FILE_NAMED_STREAMS;
}
result |= SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res);
*p_ts_res = TIMESTAMP_SET_MSEC;
return result;
}
static struct vfs_fn_pointers onefs_fns = {
.connect_fn = onefs_connect,
.fs_capabilities = onefs_fs_capabilities,
.opendir = onefs_opendir,
.readdir = onefs_readdir,
.seekdir = onefs_seekdir,
.telldir = onefs_telldir,
.rewind_dir = onefs_rewinddir,
.mkdir = onefs_mkdir,
.closedir = onefs_closedir,
.init_search_op = onefs_init_search_op,
.open = onefs_open,
.create_file = onefs_create_file,
.close_fn = onefs_close,
.sendfile = onefs_sendfile,
.recvfile = onefs_recvfile,
.rename = onefs_rename,
.stat = onefs_stat,
.fstat = onefs_fstat,
.lstat = onefs_lstat,
.get_alloc_size = onefs_get_alloc_size,
.unlink = onefs_unlink,
.ntimes = onefs_ntimes,
.file_id_create = onefs_file_id_create,
.streaminfo = onefs_streaminfo,
.brl_lock_windows = onefs_brl_lock_windows,
.brl_unlock_windows = onefs_brl_unlock_windows,
.brl_cancel_windows = onefs_brl_cancel_windows,
.strict_lock = onefs_strict_lock,
.strict_unlock = onefs_strict_unlock,
.notify_watch = onefs_notify_watch,
.fget_nt_acl = onefs_fget_nt_acl,
.get_nt_acl = onefs_get_nt_acl,
.fset_nt_acl = onefs_fset_nt_acl,
.statvfs = onefs_statvfs,
.get_real_filename = onefs_get_real_filename,
};
NTSTATUS vfs_onefs_init(void)
{
return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "onefs",
&onefs_fns);
}