#undef DBGC_CLASS
#define DBGC_CLASS DBGC_VFS
-static bool xattr_tdb_init(int snum, TALLOC_CTX *mem_ctx, struct db_context **p_db);
+struct xattr_tdb_config {
+ struct db_context *db;
+ bool ignore_user_xattr;
+};
+
+static bool xattr_tdb_init(struct vfs_handle_struct *handle,
+ struct xattr_tdb_config **_config);
+
+static bool is_user_xattr(const char *xattr_name)
+{
+ int match;
+
+ match = strncmp(xattr_name, "user.", strlen("user."));
+ return (match == 0);
+}
static int xattr_tdb_get_file_id(struct vfs_handle_struct *handle,
const char *path, struct file_id *id)
uint8_t *xattr_value;
};
+static void xattr_tdb_getxattrat_done(struct tevent_req *subreq);
+
static struct tevent_req *xattr_tdb_getxattrat_send(
TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
const char *xattr_name,
size_t alloc_hint)
{
+ struct xattr_tdb_config *config = NULL;
struct tevent_req *req = NULL;
+ struct tevent_req *subreq = NULL;
struct xattr_tdb_getxattrat_state *state = NULL;
struct smb_filename *cwd = NULL;
- struct db_context *db = NULL;
struct file_id id;
int ret;
int error;
int cwd_ret;
DATA_BLOB xattr_blob;
+ if (!xattr_tdb_init(handle, &config)) {
+ return NULL;
+ }
+
req = tevent_req_create(mem_ctx, &state,
struct xattr_tdb_getxattrat_state);
if (req == NULL) {
}
state->xattr_size = -1;
- SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context,
- if (!xattr_tdb_init(-1, state, &db)) {
- tevent_req_error(req, EIO);
- return tevent_req_post(req, ev);
- });
+ if (config->ignore_user_xattr && is_user_xattr(xattr_name)) {
+ subreq = SMB_VFS_NEXT_GETXATTRAT_SEND(state,
+ ev,
+ handle,
+ dir_fsp,
+ smb_fname,
+ xattr_name,
+ alloc_hint);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, xattr_tdb_getxattrat_done, req);
+ return req;
+ }
cwd = SMB_VFS_GETWD(dir_fsp->conn, state);
if (tevent_req_nomem(cwd, req)) {
return tevent_req_post(req, ev);
}
- state->xattr_size = xattr_tdb_getattr(db,
+ state->xattr_size = xattr_tdb_getattr(config->db,
state,
&id,
xattr_name,
return tevent_req_post(req, ev);
}
+static void xattr_tdb_getxattrat_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct xattr_tdb_getxattrat_state *state = tevent_req_data(
+ req, struct xattr_tdb_getxattrat_state);
+
+ state->xattr_size = SMB_VFS_NEXT_GETXATTRAT_RECV(subreq,
+ &state->vfs_aio_state,
+ state,
+ &state->xattr_value);
+ TALLOC_FREE(subreq);
+ if (state->xattr_size == -1) {
+ tevent_req_error(req, state->vfs_aio_state.error);
+ return;
+ }
+
+ tevent_req_done(req);
+}
+
+
static ssize_t xattr_tdb_getxattrat_recv(struct tevent_req *req,
struct vfs_aio_state *aio_state,
TALLOC_CTX *mem_ctx,
struct files_struct *fsp,
const char *name, void *value, size_t size)
{
+ struct xattr_tdb_config *config = NULL;
SMB_STRUCT_STAT sbuf;
struct file_id id;
- struct db_context *db;
ssize_t xattr_size;
DATA_BLOB blob;
- TALLOC_CTX *frame = talloc_stackframe();
+ TALLOC_CTX *frame = NULL;
+
+ if (!xattr_tdb_init(handle, &config)) {
+ 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 (config->ignore_user_xattr && is_user_xattr(name)) {
+ return SMB_VFS_NEXT_FGETXATTR(
+ handle, fsp, name, value, size);
+ }
if (SMB_VFS_NEXT_FSTAT(handle, fsp, &sbuf) == -1) {
- TALLOC_FREE(frame);
return -1;
}
+ frame = talloc_stackframe();
+
id = SMB_VFS_NEXT_FILE_ID_CREATE(handle, &sbuf);
- xattr_size = xattr_tdb_getattr(db, frame, &id, name, &blob);
+ xattr_size = xattr_tdb_getattr(config->db, frame, &id, name, &blob);
if (xattr_size < 0) {
errno = ENOATTR;
TALLOC_FREE(frame);
const char *name, const void *value,
size_t size, int flags)
{
+ struct xattr_tdb_config *config = NULL;
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,
- if (!xattr_tdb_init(-1, frame, &db))
- {
- TALLOC_FREE(frame); return -1;
- });
+ if (!xattr_tdb_init(handle, &config)) {
+ return -1;
+ }
+
+ if (config->ignore_user_xattr && is_user_xattr(name)) {
+ return SMB_VFS_NEXT_FSETXATTR(
+ handle, fsp, name, value, size, flags);
+ }
if (SMB_VFS_NEXT_FSTAT(handle, fsp, &sbuf) == -1) {
- TALLOC_FREE(frame);
return -1;
}
id = SMB_VFS_NEXT_FILE_ID_CREATE(handle, &sbuf);
- ret = xattr_tdb_setattr(db, &id, name, value, size, flags);
- TALLOC_FREE(frame);
+ ret = xattr_tdb_setattr(config->db, &id, name, value, size, flags);
return ret;
}
struct files_struct *fsp, char *list,
size_t size)
{
+ struct xattr_tdb_config *config = NULL;
SMB_STRUCT_STAT sbuf;
struct file_id id;
- struct db_context *db;
- int ret;
- TALLOC_CTX *frame = talloc_stackframe();
+ ssize_t backend_size;
+ ssize_t ret;
- SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context,
- if (!xattr_tdb_init(-1, frame, &db))
- {
- TALLOC_FREE(frame); return -1;
- });
+ if (!xattr_tdb_init(handle, &config)) {
+ return -1;
+ }
if (SMB_VFS_NEXT_FSTAT(handle, fsp, &sbuf) == -1) {
- TALLOC_FREE(frame);
return -1;
}
id = SMB_VFS_NEXT_FILE_ID_CREATE(handle, &sbuf);
- ret = xattr_tdb_listattr(db, &id, list, size);
- TALLOC_FREE(frame);
- return ret;
+ ret = xattr_tdb_listattr(config->db, &id, list, size);
+ if (ret == -1) {
+ return -1;
+ }
+ if (ret == size) {
+ return ret;
+ }
+ if (!config->ignore_user_xattr) {
+ return ret;
+ }
+ SMB_ASSERT(ret < size);
+
+ backend_size = SMB_VFS_NEXT_FLISTXATTR(
+ handle, fsp, list + ret, size - ret);
+ if (backend_size == -1) {
+ return -1;
+ }
+
+ return ret + backend_size;
}
static int xattr_tdb_fremovexattr(struct vfs_handle_struct *handle,
struct files_struct *fsp, const char *name)
{
+ struct xattr_tdb_config *config = NULL;
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,
- if (!xattr_tdb_init(-1, frame, &db))
- {
- TALLOC_FREE(frame); return -1;
- });
+ if (!xattr_tdb_init(handle, &config)) {
+ return -1;
+ }
+
+ if (config->ignore_user_xattr && is_user_xattr(name)) {
+ return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, name);
+ }
if (SMB_VFS_NEXT_FSTAT(handle, fsp, &sbuf) == -1) {
- TALLOC_FREE(frame);
return -1;
}
id = SMB_VFS_NEXT_FILE_ID_CREATE(handle, &sbuf);
- ret = xattr_tdb_removeattr(db, &id, name);
- TALLOC_FREE(frame);
- return ret;
+ return xattr_tdb_removeattr(config->db, &id, name);
+}
+
+/*
+ * Destructor for the VFS private data
+ */
+
+static void config_destructor(void **data)
+{
+ struct xattr_tdb_config **config = (struct xattr_tdb_config **)data;
+ TALLOC_FREE((*config)->db);
}
/*
* Open the tdb file upon VFS_CONNECT
*/
-static bool xattr_tdb_init(int snum, TALLOC_CTX *mem_ctx, struct db_context **p_db)
+static bool xattr_tdb_init(struct vfs_handle_struct *handle,
+ struct xattr_tdb_config **_config)
{
- struct db_context *db;
+ struct xattr_tdb_config *config = NULL;
const char *dbname;
char *def_dbname;
+ if (SMB_VFS_HANDLE_TEST_DATA(handle)) {
+ SMB_VFS_HANDLE_GET_DATA(handle, config, struct xattr_tdb_config,
+ return false);
+ if (_config != NULL) {
+ *_config = config;
+ }
+ return true;
+ }
+
+ config = talloc_zero(handle->conn, struct xattr_tdb_config);
+ if (config == NULL) {
+ errno = ENOMEM;
+ goto error;
+ }
+
def_dbname = state_path(talloc_tos(), "xattr.tdb");
if (def_dbname == NULL) {
errno = ENOSYS;
- return false;
+ goto error;
}
- dbname = lp_parm_const_string(snum, "xattr_tdb", "file", def_dbname);
+ dbname = lp_parm_const_string(SNUM(handle->conn),
+ "xattr_tdb",
+ "file",
+ def_dbname);
/* now we know dbname is not NULL */
become_root();
- db = db_open(NULL, dbname, 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600,
- DBWRAP_LOCK_ORDER_2, DBWRAP_FLAG_NONE);
+ config->db = db_open(handle, dbname, 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600,
+ DBWRAP_LOCK_ORDER_2, DBWRAP_FLAG_NONE);
unbecome_root();
- if (db == NULL) {
+ if (config->db == NULL) {
#if defined(ENOTSUP)
errno = ENOTSUP;
#else
errno = ENOSYS;
#endif
TALLOC_FREE(def_dbname);
- return false;
+ goto error;
}
-
- *p_db = db;
TALLOC_FREE(def_dbname);
+
+ config->ignore_user_xattr = lp_parm_bool(
+ SNUM(handle->conn), "xattr_tdb", "ignore_user_xattr", false);
+
+ SMB_VFS_HANDLE_SET_DATA(handle, config, config_destructor,
+ struct xattr_tdb_config, return false);
+
+ if (_config != NULL) {
+ *_config = config;
+ }
return true;
+
+error:
+ DBG_WARNING("Failed to initialize config: %s\n", strerror(errno));
+ lp_do_parameter(SNUM(handle->conn), "ea support", "False");
+ return false;
}
static int xattr_tdb_openat(struct vfs_handle_struct *handle,
const struct files_struct *dirfsp,
const struct smb_filename *smb_fname,
struct files_struct *fsp,
- int flags,
- mode_t mode)
+ const struct vfs_open_how *how)
{
- struct db_context *db = NULL;
- TALLOC_CTX *frame = NULL;
+ struct xattr_tdb_config *config = NULL;
SMB_STRUCT_STAT sbuf;
int fd;
int ret;
+ if (!xattr_tdb_init(handle, &config)) {
+ return -1;
+ }
+
fd = SMB_VFS_NEXT_OPENAT(handle,
dirfsp,
smb_fname,
fsp,
- flags,
- mode);
-
+ how);
if (fd == -1) {
return -1;
}
- if ((flags & (O_CREAT|O_EXCL)) != (O_CREAT|O_EXCL)) {
+ if ((how->flags & (O_CREAT|O_EXCL)) != (O_CREAT|O_EXCL)) {
return fd;
}
fsp->file_id = SMB_VFS_FILE_ID_CREATE(fsp->conn, &sbuf);
- 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(config->db, &fsp->file_id);
- xattr_tdb_remove_all_attrs(db, &fsp->file_id);
-
- TALLOC_FREE(frame);
return fd;
}
const struct smb_filename *smb_fname,
mode_t mode)
{
- struct db_context *db = NULL;
- TALLOC_CTX *frame = NULL;
+ struct xattr_tdb_config *config = NULL;
struct file_id fileid;
+ struct stat_ex sbuf = { .st_ex_nlink = 0, };
int ret;
- struct smb_filename *full_fname = NULL;
+
+ if (!xattr_tdb_init(handle, &config)) {
+ return -1;
+ }
ret = SMB_VFS_NEXT_MKDIRAT(handle,
dirfsp,
return ret;
}
- frame = talloc_stackframe();
+ ret = SMB_VFS_NEXT_FSTATAT(
+ handle, dirfsp, smb_fname, &sbuf, AT_SYMLINK_NOFOLLOW);
- full_fname = full_path_from_dirfsp_atname(talloc_tos(),
- dirfsp,
- smb_fname);
- if (full_fname == NULL) {
- errno = ENOMEM;
- return -1;
- }
-
- /* Always use LSTAT here - we just created the directory. */
- ret = SMB_VFS_LSTAT(handle->conn, full_fname);
if (ret == -1) {
/* Rename race. Let upper level take care of it. */
- TALLOC_FREE(frame);
return -1;
}
- if (!S_ISDIR(full_fname->st.st_ex_mode)) {
+ if (!S_ISDIR(sbuf.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, &full_fname->st);
+ fileid = SMB_VFS_FILE_ID_CREATE(handle->conn, &sbuf);
- 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);
+ xattr_tdb_remove_all_attrs(config->db, &fileid);
return 0;
}
const struct smb_filename *smb_fname,
int flags)
{
+ struct xattr_tdb_config *config = NULL;
struct smb_filename *smb_fname_tmp = NULL;
struct smb_filename *full_fname = NULL;
struct file_id id;
- struct db_context *db;
int ret = -1;
bool remove_record = false;
- TALLOC_CTX *frame = talloc_stackframe();
+ TALLOC_CTX *frame = NULL;
+
+ if (!xattr_tdb_init(handle, &config)) {
+ return -1;
+ }
- SMB_VFS_HANDLE_GET_DATA(handle, db, struct db_context,
- if (!xattr_tdb_init(-1, frame, &db))
- {
- TALLOC_FREE(frame); return -1;
- });
+ frame = talloc_stackframe();
smb_fname_tmp = cp_smb_filename(frame, smb_fname);
if (smb_fname_tmp == NULL) {
id = SMB_VFS_NEXT_FILE_ID_CREATE(handle, &smb_fname_tmp->st);
- xattr_tdb_remove_all_attrs(db, &id);
+ xattr_tdb_remove_all_attrs(config->db, &id);
out:
TALLOC_FREE(frame);
return ret;
}
-/*
- * Destructor for the VFS private data
- */
-
-static void close_xattr_db(void **data)
-{
- struct db_context **p_db = (struct db_context **)data;
- TALLOC_FREE(*p_db);
-}
-
static int xattr_tdb_connect(vfs_handle_struct *handle, const char *service,
const char *user)
{
char *sname = NULL;
int res, snum;
- struct db_context *db;
res = SMB_VFS_NEXT_CONNECT(handle, service, user);
if (res < 0) {
return 0;
}
- if (!xattr_tdb_init(snum, NULL, &db)) {
+ if (!xattr_tdb_init(handle, NULL)) {
DEBUG(5, ("Could not init xattr tdb\n"));
lp_do_parameter(snum, "ea support", "False");
return 0;
lp_do_parameter(snum, "ea support", "True");
- SMB_VFS_HANDLE_SET_DATA(handle, db, close_xattr_db,
- struct db_context, return -1);
-
return 0;
}
git.samba.org / samba.git / blobdiff