Fix the overwriting of errno before use in a DEBUG statement and use the return value...
[kai/samba.git] / source3 / modules / vfs_onefs.c
index b51858fbaec0a83e35fd46cef71fd329dff50570..619e3874a3fdf538ac9d9805828ace4d7edbc15d 100644 (file)
  */
 
 #include "includes.h"
+#include "smbd/smbd.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)
 {
-       DEBUG(0, ("SMB_VFS_MKDIR should never be called in vfs_onefs"));
+       /* 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,
+static int onefs_open(vfs_handle_struct *handle,
+                     struct smb_filename *smb_fname,
                      files_struct *fsp, int flags, mode_t mode)
 {
-       DEBUG(0, ("SMB_VFS_OPEN should never be called in vfs_onefs"));
-       return SMB_VFS_NEXT_OPEN(handle, fname, fsp, flags, mode);
-}
-
-static vfs_op_tuple onefs_ops[] = {
-       {SMB_VFS_OP(onefs_mkdir), SMB_VFS_OP_MKDIR,
-        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_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(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
+       /* 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,
+                             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, 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_fn = onefs_fs_capabilities,
+       .opendir_fn = onefs_opendir,
+       .readdir_fn = onefs_readdir,
+       .seekdir_fn = onefs_seekdir,
+       .telldir_fn = onefs_telldir,
+       .rewind_dir_fn = onefs_rewinddir,
+       .mkdir_fn = onefs_mkdir,
+       .closedir_fn = onefs_closedir,
+       .init_search_op_fn = onefs_init_search_op,
+       .open_fn = onefs_open,
+       .create_file_fn = onefs_create_file,
+       .close_fn = onefs_close,
+       .sendfile_fn = onefs_sendfile,
+       .recvfile_fn = onefs_recvfile,
+       .rename_fn = onefs_rename,
+       .stat_fn = onefs_stat,
+       .fstat_fn = onefs_fstat,
+       .lstat_fn = onefs_lstat,
+       .get_alloc_size_fn = onefs_get_alloc_size,
+       .unlink_fn = onefs_unlink,
+       .ntimes_fn = onefs_ntimes,
+       .file_id_create_fn = onefs_file_id_create,
+       .streaminfo_fn = onefs_streaminfo,
+       .brl_lock_windows_fn = onefs_brl_lock_windows,
+       .brl_unlock_windows_fn = onefs_brl_unlock_windows,
+       .brl_cancel_windows_fn = onefs_brl_cancel_windows,
+       .strict_lock_fn = onefs_strict_lock,
+       .strict_unlock_fn = onefs_strict_unlock,
+       .notify_watch_fn = onefs_notify_watch,
+       .fget_nt_acl_fn = onefs_fget_nt_acl,
+       .get_nt_acl_fn = onefs_get_nt_acl,
+       .fset_nt_acl_fn = onefs_fset_nt_acl,
+       .statvfs_fn = onefs_statvfs,
+       .get_real_filename_fn = onefs_get_real_filename,
 };
 
 NTSTATUS vfs_onefs_init(void)
 {
        return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "onefs",
-                               onefs_ops);
+                               &onefs_fns);
 }