return NT_STATUS_OK;
}
+#if 0
/*
send an oplock break to a client
*/
return messaging_send_ptr(odb->ntvfs_ctx->msg_ctx, e->server,
MSG_NTVFS_OPLOCK_BREAK, e->file_handle);
}
+#endif
/*
register an open file in the open files database. This implements the share_access
*/
static NTSTATUS odb_ctdb_open_file(struct odb_lock *lck,
void *file_handle, const char *path,
- uint32_t stream_id, uint32_t share_access,
- uint32_t access_mask, bool delete_on_close,
- uint32_t open_disposition, bool break_to_none,
bool allow_level_II_oplock,
uint32_t oplock_level, uint32_t *oplock_granted)
{
- struct odb_context *odb = lck->odb;
- struct opendb_entry e;
- int i;
- struct opendb_file file;
- NTSTATUS status;
-
- if (odb->oplocks == false) {
- oplock_level = OPLOCK_NONE;
- }
-
- status = odb_pull_record(lck, &file);
- if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
- /* initialise a blank structure */
- ZERO_STRUCT(file);
- file.path = path;
- } else {
- NT_STATUS_NOT_OK_RETURN(status);
- }
-
- /* see if it conflicts */
- e.server = odb->ntvfs_ctx->server_id;
- e.file_handle = file_handle;
- e.stream_id = stream_id;
- e.share_access = share_access;
- e.access_mask = access_mask;
- e.delete_on_close = delete_on_close;
- e.oplock_level = OPLOCK_NONE;
-
- /* see if anyone has an oplock, which we need to break */
- for (i=0;i<file.num_entries;i++) {
- if (file.entries[i].oplock_level == OPLOCK_BATCH) {
- /* a batch oplock caches close calls, which
- means the client application might have
- already closed the file. We have to allow
- this close to propogate by sending a oplock
- break request and suspending this call
- until the break is acknowledged or the file
- is closed */
- odb_oplock_break_send(odb, &file.entries[i]);
- return NT_STATUS_OPLOCK_NOT_GRANTED;
- }
- }
-
- if (file.delete_on_close ||
- (file.num_entries != 0 && delete_on_close)) {
- /* while delete on close is set, no new opens are allowed */
- return NT_STATUS_DELETE_PENDING;
- }
-
- /* check for sharing violations */
- for (i=0;i<file.num_entries;i++) {
- status = share_conflict(&file.entries[i], &e);
- NT_STATUS_NOT_OK_RETURN(status);
- }
-
- /* we now know the open could succeed, but we need to check
- for any exclusive oplocks. We can't grant a second open
- till these are broken. Note that we check for batch oplocks
- before checking for sharing violations, and check for
- exclusive oplocks afterwards. */
- for (i=0;i<file.num_entries;i++) {
- if (file.entries[i].oplock_level == OPLOCK_EXCLUSIVE) {
- odb_oplock_break_send(odb, &file.entries[i]);
- return NT_STATUS_OPLOCK_NOT_GRANTED;
- }
- }
-
/*
- possibly grant an exclusive or batch oplock if this is the only client
- with the file open. We don't yet grant levelII oplocks.
- */
- if (oplock_granted != NULL) {
- if ((oplock_level == OPLOCK_BATCH ||
- oplock_level == OPLOCK_EXCLUSIVE) &&
- file.num_entries == 0) {
- (*oplock_granted) = oplock_level;
- } else {
- (*oplock_granted) = OPLOCK_NONE;
- }
- e.oplock_level = (*oplock_granted);
- }
-
- /* it doesn't conflict, so add it to the end */
- file.entries = talloc_realloc(lck, file.entries, struct opendb_entry,
- file.num_entries+1);
- NT_STATUS_HAVE_NO_MEMORY(file.entries);
-
- file.entries[file.num_entries] = e;
- file.num_entries++;
-
- return odb_push_record(lck, &file);
+ * as this file will went away and isn't used yet,
+ * copy the implementation from the tdb backend
+ * --metze
+ */
+ return NT_STATUS_FOOBAR;
}
}
/*
- register an open file in the open files database. This implements the share_access
- rules
+ register an open file in the open files database.
+ The share_access rules are implemented by odb_can_open()
+ and it's needed to call odb_can_open() before
+ odb_open_file() otherwise NT_STATUS_INTERNAL_ERROR is returned
Note that the path is only used by the delete on close logic, not
for comparing with other filenames
*/
_PUBLIC_ NTSTATUS odb_open_file(struct odb_lock *lck,
void *file_handle, const char *path,
- uint32_t stream_id, uint32_t share_access,
- uint32_t access_mask, bool delete_on_close,
- uint32_t open_disposition, bool break_to_none,
bool allow_level_II_oplock,
uint32_t oplock_level, uint32_t *oplock_granted)
{
- return ops->odb_open_file(lck, file_handle, path, stream_id, share_access,
- access_mask, delete_on_close, open_disposition,
- break_to_none, allow_level_II_oplock,
+ return ops->odb_open_file(lck, file_handle, path,
+ allow_level_II_oplock,
oplock_level, oplock_granted);
}
struct odb_lock {
struct odb_context *odb;
TDB_DATA key;
+
+ struct {
+ struct opendb_entry *e;
+ bool attrs_only;
+ } can_open;
};
/*
return NULL;
}
+ ZERO_STRUCT(lck->can_open);
+
talloc_set_destructor(lck, odb_lock_destructor);
return lck;
}
/*
- register an open file in the open files database. This implements the share_access
- rules
+ register an open file in the open files database.
+ The share_access rules are implemented by odb_can_open()
+ and it's needed to call odb_can_open() before
+ odb_open_file() otherwise NT_STATUS_INTERNAL_ERROR is returned
Note that the path is only used by the delete on close logic, not
for comparing with other filenames
*/
static NTSTATUS odb_tdb_open_file(struct odb_lock *lck,
void *file_handle, const char *path,
- uint32_t stream_id, uint32_t share_access,
- uint32_t access_mask, bool delete_on_close,
- uint32_t open_disposition, bool break_to_none,
bool allow_level_II_oplock,
uint32_t oplock_level, uint32_t *oplock_granted)
{
struct odb_context *odb = lck->odb;
- struct opendb_entry e;
struct opendb_file file;
NTSTATUS status;
- bool attrs_only = false;
+
+ if (!lck->can_open.e) {
+ return NT_STATUS_INTERNAL_ERROR;
+ }
if (odb->oplocks == false) {
oplock_level = OPLOCK_NONE;
}
+ if (!oplock_granted) {
+ oplock_level = OPLOCK_NONE;
+ }
+
status = odb_pull_record(lck, &file);
if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
/* initialise a blank structure */
NT_STATUS_NOT_OK_RETURN(status);
}
- /* see if it conflicts */
- status = odb_tdb_open_can_internal(odb, &file, stream_id,
- share_access, access_mask,
- delete_on_close, open_disposition,
- break_to_none, &attrs_only);
- NT_STATUS_NOT_OK_RETURN(status);
-
- /* see if it conflicts */
- e.server = odb->ntvfs_ctx->server_id;
- e.file_handle = file_handle;
- e.stream_id = stream_id;
- e.share_access = share_access;
- e.access_mask = access_mask;
- e.delete_on_close = delete_on_close;
- e.allow_level_II_oplock = allow_level_II_oplock;
- e.oplock_level = OPLOCK_NONE;
-
/*
possibly grant an exclusive, batch or level2 oplock
*/
+ if (lck->can_open.attrs_only) {
+ oplock_level = OPLOCK_NONE;
+ } else if (oplock_level == OPLOCK_EXCLUSIVE) {
+ if (file.num_entries == 0) {
+ oplock_level = OPLOCK_EXCLUSIVE;
+ } else if (allow_level_II_oplock) {
+ oplock_level = OPLOCK_LEVEL_II;
+ } else {
+ oplock_level = OPLOCK_NONE;
+ }
+ } else if (oplock_level == OPLOCK_BATCH) {
+ if (file.num_entries == 0) {
+ oplock_level = OPLOCK_BATCH;
+ } else if (allow_level_II_oplock) {
+ oplock_level = OPLOCK_LEVEL_II;
+ } else {
+ oplock_level = OPLOCK_NONE;
+ }
+ } else if (oplock_level == OPLOCK_LEVEL_II) {
+ oplock_level = OPLOCK_LEVEL_II;
+ } else {
+ oplock_level = OPLOCK_NONE;
+ }
+
if (oplock_granted) {
- if (attrs_only) {
- e.oplock_level = OPLOCK_NONE;
- *oplock_granted = NO_OPLOCK_RETURN;
- } else if (oplock_level == OPLOCK_EXCLUSIVE) {
- if (file.num_entries == 0) {
- e.oplock_level = OPLOCK_EXCLUSIVE;
- *oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
- } else if (allow_level_II_oplock) {
- e.oplock_level = OPLOCK_LEVEL_II;
- *oplock_granted = LEVEL_II_OPLOCK_RETURN;
- } else {
- e.oplock_level = OPLOCK_NONE;
- *oplock_granted = NO_OPLOCK_RETURN;
- }
+ if (oplock_level == OPLOCK_EXCLUSIVE) {
+ *oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
} else if (oplock_level == OPLOCK_BATCH) {
- if (file.num_entries == 0) {
- e.oplock_level = OPLOCK_BATCH;
- *oplock_granted = BATCH_OPLOCK_RETURN;
- } else if (allow_level_II_oplock) {
- e.oplock_level = OPLOCK_LEVEL_II;
- *oplock_granted = LEVEL_II_OPLOCK_RETURN;
- } else {
- e.oplock_level = OPLOCK_NONE;
- *oplock_granted = NO_OPLOCK_RETURN;
- }
+ *oplock_granted = BATCH_OPLOCK_RETURN;
} else if (oplock_level == OPLOCK_LEVEL_II) {
- e.oplock_level = OPLOCK_LEVEL_II;
*oplock_granted = LEVEL_II_OPLOCK_RETURN;
} else {
- e.oplock_level = OPLOCK_NONE;
*oplock_granted = NO_OPLOCK_RETURN;
}
}
+ lck->can_open.e->file_handle = file_handle;
+ lck->can_open.e->allow_level_II_oplock = allow_level_II_oplock;
+ lck->can_open.e->oplock_level = oplock_level;
+
/* it doesn't conflict, so add it to the end */
file.entries = talloc_realloc(lck, file.entries, struct opendb_entry,
file.num_entries+1);
NT_STATUS_HAVE_NO_MEMORY(file.entries);
- file.entries[file.num_entries] = e;
+ file.entries[file.num_entries] = *lck->can_open.e;
file.num_entries++;
return odb_push_record(lck, &file);
struct odb_context *odb = lck->odb;
NTSTATUS status;
struct opendb_file file;
- bool attrs_only = false;
status = odb_pull_record(lck, &file);
if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
- return NT_STATUS_OK;
+ goto ok;
}
NT_STATUS_NOT_OK_RETURN(status);
status = odb_tdb_open_can_internal(odb, &file, stream_id,
share_access, access_mask,
delete_on_close, open_disposition,
- break_to_none, &attrs_only);
+ break_to_none, &lck->can_open.attrs_only);
NT_STATUS_NOT_OK_RETURN(status);
+ok:
+ lck->can_open.e = talloc(lck, struct opendb_entry);
+ NT_STATUS_HAVE_NO_MEMORY(lck->can_open.e);
+
+ lck->can_open.e->server = odb->ntvfs_ctx->server_id;
+ lck->can_open.e->file_handle = NULL;
+ lck->can_open.e->stream_id = stream_id;
+ lck->can_open.e->share_access = share_access;
+ lck->can_open.e->access_mask = access_mask;
+ lck->can_open.e->delete_on_close = delete_on_close;
+ lck->can_open.e->allow_level_II_oplock = false;
+ lck->can_open.e->oplock_level = OPLOCK_NONE;
+
return NT_STATUS_OK;
}
git.samba.org / jra / samba / .git / commitdiff