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samba-mirror/source3/modules/vfs_onefs.c
Tim Prouty 161bd7f78f s3 onefs: Fix case-insensitivity for mangled names
onefs_get_real_filename needs to demangle the filename before doing
the case-insensitive estat
2009-04-07 10:44:50 -07:00

328 lines
9.4 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;
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 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 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)
{
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;
}
return result | SMB_VFS_NEXT_FS_CAPABILITIES(handle);
}
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_strict_lock), SMB_VFS_OP_STRICT_LOCK,
SMB_VFS_LAYER_OPAQUE},
{SMB_VFS_OP(onefs_strict_unlock), SMB_VFS_OP_STRICT_UNLOCK,
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);
}