* Store posix-level xattrs in a tdb
*
* Copyright (C) Volker Lendecke, 2007
+ * Copyright (C) Andrew Bartlett, 2012
*
* 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
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_VFS
+static bool xattr_tdb_init(int snum, TALLOC_CTX *mem_ctx, struct db_context **p_db);
+
+static int xattr_tdb_get_file_id(struct vfs_handle_struct *handle,
+ const char *path, struct file_id *id)
+{
+ int ret;
+ TALLOC_CTX *frame = talloc_stackframe();
+ struct smb_filename *smb_fname;
+
+ smb_fname = synthetic_smb_fname(frame, path, NULL, NULL, 0);
+ if (smb_fname == NULL) {
+ TALLOC_FREE(frame);
+ errno = ENOMEM;
+ return -1;
+ }
+
+ ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
+
+ if (ret == -1) {
+ TALLOC_FREE(frame);
+ return -1;
+ }
+
+ *id = SMB_VFS_NEXT_FILE_ID_CREATE(handle, &smb_fname->st);
+ TALLOC_FREE(frame);
+ return 0;
+}
+
static ssize_t xattr_tdb_getxattr(struct vfs_handle_struct *handle,
const char *path, const char *name,
void *value, size_t size)
{
- SMB_STRUCT_STAT sbuf;
struct file_id id;
struct db_context *db;
ssize_t xattr_size;
+ int ret;
DATA_BLOB blob;
TALLOC_CTX *frame = talloc_stackframe();
- if (!frame) {
- errno = ENOMEM;
- return -1;
- }
- SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1);
+ SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context,
+ if (!xattr_tdb_init(-1, frame, &db))
+ {
+ TALLOC_FREE(frame); return -1;
+ });
- if (vfs_stat_smb_fname(handle->conn, path, &sbuf) == -1) {
+ ret = xattr_tdb_get_file_id(handle, path, &id);
+ if (ret == -1) {
TALLOC_FREE(frame);
return -1;
}
- id = SMB_VFS_FILE_ID_CREATE(handle->conn, &sbuf);
-
xattr_size = xattr_tdb_getattr(db, frame, &id, name, &blob);
if (xattr_size < 0) {
+ errno = ENOATTR;
TALLOC_FREE(frame);
return -1;
}
errno = ERANGE;
return -1;
}
- memcpy(value, blob.data, size);
+ memcpy(value, blob.data, xattr_size);
+ TALLOC_FREE(frame);
return xattr_size;
}
ssize_t xattr_size;
DATA_BLOB blob;
TALLOC_CTX *frame = talloc_stackframe();
- if (!frame) {
- errno = ENOMEM;
- return -1;
- }
- SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1);
+ SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context,
+ if (!xattr_tdb_init(-1, frame, &db))
+ {
+ TALLOC_FREE(frame); return -1;
+ });
- if (SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
+ if (SMB_VFS_NEXT_FSTAT(handle, fsp, &sbuf) == -1) {
TALLOC_FREE(frame);
return -1;
}
- id = SMB_VFS_FILE_ID_CREATE(handle->conn, &sbuf);
+ id = SMB_VFS_NEXT_FILE_ID_CREATE(handle, &sbuf);
xattr_size = xattr_tdb_getattr(db, frame, &id, name, &blob);
if (xattr_size < 0) {
+ errno = ENOATTR;
TALLOC_FREE(frame);
return -1;
}
errno = ERANGE;
return -1;
}
- memcpy(value, blob.data, size);
+ memcpy(value, blob.data, xattr_size);
TALLOC_FREE(frame);
return xattr_size;
}
const char *path, const char *name,
const void *value, size_t size, int flags)
{
- SMB_STRUCT_STAT sbuf;
struct file_id id;
struct db_context *db;
+ int ret;
+ TALLOC_CTX *frame = talloc_stackframe();
- SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1);
+ SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context,
+ if (!xattr_tdb_init(-1, frame, &db))
+ {
+ TALLOC_FREE(frame); return -1;
+ });
- if (vfs_stat_smb_fname(handle->conn, path, &sbuf) == -1) {
+ ret = xattr_tdb_get_file_id(handle, path, &id);
+ if (ret == -1) {
+ TALLOC_FREE(frame);
return -1;
}
- id = SMB_VFS_FILE_ID_CREATE(handle->conn, &sbuf);
-
- return xattr_tdb_setattr(db, &id, name, value, size, flags);
+ ret = xattr_tdb_setattr(db, &id, name, value, size, flags);
+ TALLOC_FREE(frame);
+ return ret;
}
static int xattr_tdb_fsetxattr(struct vfs_handle_struct *handle,
SMB_STRUCT_STAT sbuf;
struct file_id id;
struct db_context *db;
+ int ret;
+ TALLOC_CTX *frame = talloc_stackframe();
- SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1);
+ SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context,
+ if (!xattr_tdb_init(-1, frame, &db))
+ {
+ TALLOC_FREE(frame); return -1;
+ });
- if (SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
+ if (SMB_VFS_NEXT_FSTAT(handle, fsp, &sbuf) == -1) {
+ TALLOC_FREE(frame);
return -1;
}
- id = SMB_VFS_FILE_ID_CREATE(handle->conn, &sbuf);
+ id = SMB_VFS_NEXT_FILE_ID_CREATE(handle, &sbuf);
+
+ ret = xattr_tdb_setattr(db, &id, name, value, size, flags);
+ TALLOC_FREE(frame);
+ return ret;
- return xattr_tdb_setattr(db, &id, name, value, size, flags);
}
static ssize_t xattr_tdb_listxattr(struct vfs_handle_struct *handle,
const char *path, char *list, size_t size)
{
- SMB_STRUCT_STAT sbuf;
struct file_id id;
struct db_context *db;
+ int ret;
+ TALLOC_CTX *frame = talloc_stackframe();
- SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1);
+ SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context,
+ if (!xattr_tdb_init(-1, frame, &db))
+ {
+ TALLOC_FREE(frame); return -1;
+ });
- if (vfs_stat_smb_fname(handle->conn, path, &sbuf) == -1) {
+ ret = xattr_tdb_get_file_id(handle, path, &id);
+ if (ret == -1) {
+ TALLOC_FREE(frame);
return -1;
}
- id = SMB_VFS_FILE_ID_CREATE(handle->conn, &sbuf);
+ ret = xattr_tdb_listattr(db, &id, list, size);
+ TALLOC_FREE(frame);
+ return ret;
- return xattr_tdb_listattr(db, &id, list, size);
}
static ssize_t xattr_tdb_flistxattr(struct vfs_handle_struct *handle,
SMB_STRUCT_STAT sbuf;
struct file_id id;
struct db_context *db;
+ int ret;
+ TALLOC_CTX *frame = talloc_stackframe();
- SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1);
+ SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context,
+ if (!xattr_tdb_init(-1, frame, &db))
+ {
+ TALLOC_FREE(frame); return -1;
+ });
- if (SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
+ if (SMB_VFS_NEXT_FSTAT(handle, fsp, &sbuf) == -1) {
+ TALLOC_FREE(frame);
return -1;
}
- id = SMB_VFS_FILE_ID_CREATE(handle->conn, &sbuf);
+ id = SMB_VFS_NEXT_FILE_ID_CREATE(handle, &sbuf);
- return xattr_tdb_listattr(db, &id, list, size);
+ ret = xattr_tdb_listattr(db, &id, list, size);
+ TALLOC_FREE(frame);
+ return ret;
}
static int xattr_tdb_removexattr(struct vfs_handle_struct *handle,
const char *path, const char *name)
{
- SMB_STRUCT_STAT sbuf;
struct file_id id;
struct db_context *db;
+ int ret;
+ TALLOC_CTX *frame = talloc_stackframe();
- SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1);
+ SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context,
+ if (!xattr_tdb_init(-1, frame, &db))
+ {
+ TALLOC_FREE(frame); return -1;
+ });
- if (vfs_stat_smb_fname(handle->conn, path, &sbuf) == -1) {
- return -1;
+ ret = xattr_tdb_get_file_id(handle, path, &id);
+ if (ret == -1) {
+ TALLOC_FREE(frame);
+ return ret;
}
- id = SMB_VFS_FILE_ID_CREATE(handle->conn, &sbuf);
-
- return xattr_tdb_removeattr(db, &id, name);
+
+ ret = xattr_tdb_removeattr(db, &id, name);
+ TALLOC_FREE(frame);
+ return ret;
}
static int xattr_tdb_fremovexattr(struct vfs_handle_struct *handle,
SMB_STRUCT_STAT sbuf;
struct file_id id;
struct db_context *db;
+ int ret;
+ TALLOC_CTX *frame = talloc_stackframe();
- SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1);
+ SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context,
+ if (!xattr_tdb_init(-1, frame, &db))
+ {
+ TALLOC_FREE(frame); return -1;
+ });
- if (SMB_VFS_FSTAT(fsp, &sbuf) == -1) {
+ if (SMB_VFS_NEXT_FSTAT(handle, fsp, &sbuf) == -1) {
+ TALLOC_FREE(frame);
return -1;
}
- id = SMB_VFS_FILE_ID_CREATE(handle->conn, &sbuf);
+ id = SMB_VFS_NEXT_FILE_ID_CREATE(handle, &sbuf);
- return xattr_tdb_removeattr(db, &id, name);
+ ret = xattr_tdb_removeattr(db, &id, name);
+ TALLOC_FREE(frame);
+ return ret;
}
/*
* Open the tdb file upon VFS_CONNECT
*/
-static bool xattr_tdb_init(int snum, struct db_context **p_db)
+static bool xattr_tdb_init(int snum, TALLOC_CTX *mem_ctx, struct db_context **p_db)
{
struct db_context *db;
const char *dbname;
become_root();
db = db_open(NULL, dbname, 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600,
- DBWRAP_LOCK_ORDER_2);
+ DBWRAP_LOCK_ORDER_2, DBWRAP_FLAG_NONE);
unbecome_root();
if (db == NULL) {
return true;
}
+static int xattr_tdb_open(vfs_handle_struct *handle,
+ struct smb_filename *smb_fname,
+ files_struct *fsp,
+ int flags,
+ mode_t mode)
+{
+ struct db_context *db = NULL;
+ TALLOC_CTX *frame = NULL;
+ int ret;
+
+ fsp->fh->fd = SMB_VFS_NEXT_OPEN(handle,
+ smb_fname, fsp,
+ flags,
+ mode);
+
+ if (fsp->fh->fd < 0) {
+ return fsp->fh->fd;
+ }
+
+ if ((flags & (O_CREAT|O_EXCL)) != (O_CREAT|O_EXCL)) {
+ return fsp->fh->fd;
+ }
+
+ /*
+ * We know we used O_CREAT|O_EXCL and it worked.
+ * We must have created the file.
+ */
+
+ ret = SMB_VFS_FSTAT(fsp, &smb_fname->st);
+ if (ret == -1) {
+ /* Can't happen... */
+ DBG_WARNING("SMB_VFS_FSTAT failed on file %s (%s)\n",
+ smb_fname_str_dbg(smb_fname),
+ strerror(errno));
+ return -1;
+ }
+ fsp->file_id = SMB_VFS_FILE_ID_CREATE(fsp->conn, &smb_fname->st);
+
+ frame = talloc_stackframe();
+ SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context,
+ if (!xattr_tdb_init(-1, frame, &db))
+ {
+ TALLOC_FREE(frame); return -1;
+ });
+
+ xattr_tdb_remove_all_attrs(db, &fsp->file_id);
+ TALLOC_FREE(frame);
+ return fsp->fh->fd;
+}
+
+static int xattr_tdb_mkdir(vfs_handle_struct *handle,
+ const struct smb_filename *smb_fname,
+ mode_t mode)
+{
+ struct db_context *db = NULL;
+ TALLOC_CTX *frame = NULL;
+ struct file_id fileid;
+ int ret;
+ struct smb_filename *smb_fname_tmp = NULL;
+
+ ret = SMB_VFS_NEXT_MKDIR(handle, smb_fname, mode);
+ if (ret < 0) {
+ return ret;
+ }
+
+ frame = talloc_stackframe();
+ smb_fname_tmp = cp_smb_filename(frame, smb_fname);
+ if (smb_fname_tmp == NULL) {
+ TALLOC_FREE(frame);
+ errno = ENOMEM;
+ return -1;
+ }
+
+ /* Always use LSTAT here - we just creaded the directory. */
+ ret = SMB_VFS_LSTAT(handle->conn, smb_fname_tmp);
+ if (ret == -1) {
+ /* Rename race. Let upper level take care of it. */
+ TALLOC_FREE(frame);
+ return -1;
+ }
+ if (!S_ISDIR(smb_fname_tmp->st.st_ex_mode)) {
+ /* Rename race. Let upper level take care of it. */
+ TALLOC_FREE(frame);
+ return -1;
+ }
+
+ fileid = SMB_VFS_FILE_ID_CREATE(handle->conn, &smb_fname_tmp->st);
+
+ SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context,
+ if (!xattr_tdb_init(-1, frame, &db))
+ {
+ TALLOC_FREE(frame); return -1;
+ });
+
+ xattr_tdb_remove_all_attrs(db, &fileid);
+ TALLOC_FREE(frame);
+ return 0;
+}
+
/*
* On unlink we need to delete the tdb record
*/
struct smb_filename *smb_fname_tmp = NULL;
struct file_id id;
struct db_context *db;
- NTSTATUS status;
int ret = -1;
bool remove_record = false;
+ TALLOC_CTX *frame = talloc_stackframe();
- SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1);
+ SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context,
+ if (!xattr_tdb_init(-1, frame, &db))
+ {
+ TALLOC_FREE(frame); return -1;
+ });
- status = copy_smb_filename(talloc_tos(), smb_fname, &smb_fname_tmp);
- if (!NT_STATUS_IS_OK(status)) {
- errno = map_errno_from_nt_status(status);
+ smb_fname_tmp = cp_smb_filename(frame, smb_fname);
+ if (smb_fname_tmp == NULL) {
+ TALLOC_FREE(frame);
+ errno = ENOMEM;
return -1;
}
- if (lp_posix_pathnames()) {
- ret = SMB_VFS_LSTAT(handle->conn, smb_fname_tmp);
+ if (smb_fname_tmp->flags & SMB_FILENAME_POSIX_PATH) {
+ ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname_tmp);
} else {
- ret = SMB_VFS_STAT(handle->conn, smb_fname_tmp);
+ ret = SMB_VFS_NEXT_STAT(handle, smb_fname_tmp);
}
if (ret == -1) {
goto out;
goto out;
}
- id = SMB_VFS_FILE_ID_CREATE(handle->conn, &smb_fname_tmp->st);
+ id = SMB_VFS_NEXT_FILE_ID_CREATE(handle, &smb_fname_tmp->st);
xattr_tdb_remove_all_attrs(db, &id);
out:
- TALLOC_FREE(smb_fname_tmp);
+ TALLOC_FREE(frame);
return ret;
}
/*
* On rmdir we need to delete the tdb record
*/
-static int xattr_tdb_rmdir(vfs_handle_struct *handle, const char *path)
+static int xattr_tdb_rmdir(vfs_handle_struct *handle,
+ const struct smb_filename *smb_fname)
{
SMB_STRUCT_STAT sbuf;
struct file_id id;
struct db_context *db;
int ret;
+ TALLOC_CTX *frame = talloc_stackframe();
- SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context, return -1);
+ SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context,
+ if (!xattr_tdb_init(-1, frame, &db))
+ {
+ TALLOC_FREE(frame); return -1;
+ });
- if (vfs_stat_smb_fname(handle->conn, path, &sbuf) == -1) {
+ if (vfs_stat_smb_basename(handle->conn,
+ smb_fname,
+ &sbuf) == -1) {
+ TALLOC_FREE(frame);
return -1;
}
- ret = SMB_VFS_NEXT_RMDIR(handle, path);
+ ret = SMB_VFS_NEXT_RMDIR(handle, smb_fname);
if (ret == -1) {
+ TALLOC_FREE(frame);
return -1;
}
- id = SMB_VFS_FILE_ID_CREATE(handle->conn, &sbuf);
+ id = SMB_VFS_NEXT_FILE_ID_CREATE(handle, &sbuf);
xattr_tdb_remove_all_attrs(db, &id);
+ TALLOC_FREE(frame);
return 0;
}
return 0;
}
- if (!xattr_tdb_init(snum, &db)) {
+ if (!xattr_tdb_init(snum, NULL, &db)) {
DEBUG(5, ("Could not init xattr tdb\n"));
lp_do_parameter(snum, "ea support", "False");
return 0;
.flistxattr_fn = xattr_tdb_flistxattr,
.removexattr_fn = xattr_tdb_removexattr,
.fremovexattr_fn = xattr_tdb_fremovexattr,
+ .open_fn = xattr_tdb_open,
+ .mkdir_fn = xattr_tdb_mkdir,
.unlink_fn = xattr_tdb_unlink,
.rmdir_fn = xattr_tdb_rmdir,
.connect_fn = xattr_tdb_connect,
git.samba.org / amitay / samba.git / blobdiff