Unix SMB/CIFS implementation.
Copyright (C) Andrew Tridgell 2004
-
+ Copyright (C) Stefan Metzmacher 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
#include "system/filesys.h"
#include "lib/tdb/include/tdb.h"
#include "messaging/messaging.h"
-#include "db_wrap.h"
+#include "tdb_wrap.h"
#include "lib/messaging/irpc.h"
#include "librpc/gen_ndr/ndr_opendb.h"
#include "ntvfs/ntvfs.h"
#include "ntvfs/common/ntvfs_common.h"
#include "cluster/cluster.h"
#include "param/param.h"
+#include "ntvfs/sysdep/sys_lease.h"
struct odb_context {
struct tdb_wrap *w;
struct ntvfs_context *ntvfs_ctx;
bool oplocks;
+ struct sys_lease_context *lease_ctx;
};
/*
struct odb_lock {
struct odb_context *odb;
TDB_DATA key;
+
+ struct opendb_file file;
+
+ struct {
+ struct opendb_entry *e;
+ bool attrs_only;
+ } can_open;
};
+static NTSTATUS odb_oplock_break_send(struct messaging_context *msg_ctx,
+ struct opendb_entry *e,
+ uint8_t level);
+
/*
Open up the openfiles.tdb database. Close it down using
talloc_free(). We need the messaging_ctx to allow for pending open
return NULL;
}
- odb->w = cluster_tdb_tmp_open(odb, "openfiles.tdb", TDB_DEFAULT);
+ odb->w = cluster_tdb_tmp_open(odb, ntvfs_ctx->lp_ctx, "openfiles.tdb", TDB_DEFAULT);
if (odb->w == NULL) {
talloc_free(odb);
return NULL;
odb->ntvfs_ctx = ntvfs_ctx;
- /* leave oplocks disabled by default until the code is working */
- odb->oplocks = lp_parm_bool(global_loadparm, NULL, "opendb", "oplocks", false);
+ odb->oplocks = share_bool_option(ntvfs_ctx->ctx->config, SHARE_OPLOCKS, SHARE_OPLOCKS_DEFAULT);
+
+ odb->lease_ctx = sys_lease_context_create(ntvfs_ctx->config, odb,
+ ntvfs_ctx->event_ctx,
+ ntvfs_ctx->msg_ctx,
+ odb_oplock_break_send);
return odb;
}
return 0;
}
+static NTSTATUS odb_pull_record(struct odb_lock *lck, struct opendb_file *file);
+
/*
get a lock on a entry in the odb. This call returns a lock handle,
which the caller should unlock using talloc_free().
struct odb_context *odb, DATA_BLOB *file_key)
{
struct odb_lock *lck;
+ NTSTATUS status;
lck = talloc(mem_ctx, struct odb_lock);
if (lck == NULL) {
return NULL;
}
+ ZERO_STRUCT(lck->can_open);
+
talloc_set_destructor(lck, odb_lock_destructor);
+
+ status = odb_pull_record(lck, &lck->file);
+ if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
+ /* initialise a blank structure */
+ ZERO_STRUCT(lck->file);
+ } else if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(lck);
+ return NULL;
+ }
return lck;
}
+static DATA_BLOB odb_tdb_get_key(TALLOC_CTX *mem_ctx, struct odb_lock *lck)
+{
+ return data_blob_talloc(mem_ctx, lck->key.dptr, lck->key.dsize);
+}
+
+
/*
determine if two odb_entry structures conflict
return NT_STATUS_OK on no conflict
*/
-static NTSTATUS share_conflict(struct opendb_entry *e1, struct opendb_entry *e2)
+static NTSTATUS share_conflict(struct opendb_entry *e1,
+ uint32_t stream_id,
+ uint32_t share_access,
+ uint32_t access_mask)
{
/* if either open involves no read.write or delete access then
it can't conflict */
SEC_STD_DELETE))) {
return NT_STATUS_OK;
}
- if (!(e2->access_mask & (SEC_FILE_WRITE_DATA |
- SEC_FILE_APPEND_DATA |
- SEC_FILE_READ_DATA |
- SEC_FILE_EXECUTE |
- SEC_STD_DELETE))) {
+ if (!(access_mask & (SEC_FILE_WRITE_DATA |
+ SEC_FILE_APPEND_DATA |
+ SEC_FILE_READ_DATA |
+ SEC_FILE_EXECUTE |
+ SEC_STD_DELETE))) {
return NT_STATUS_OK;
}
/* data IO access masks. This is skipped if the two open handles
are on different streams (as in that case the masks don't
interact) */
- if (e1->stream_id != e2->stream_id) {
+ if (e1->stream_id != stream_id) {
return NT_STATUS_OK;
}
if (((am) & (right)) && !((sa) & (share))) return NT_STATUS_SHARING_VIOLATION
CHECK_MASK(e1->access_mask, SEC_FILE_WRITE_DATA | SEC_FILE_APPEND_DATA,
- e2->share_access, NTCREATEX_SHARE_ACCESS_WRITE);
- CHECK_MASK(e2->access_mask, SEC_FILE_WRITE_DATA | SEC_FILE_APPEND_DATA,
+ share_access, NTCREATEX_SHARE_ACCESS_WRITE);
+ CHECK_MASK(access_mask, SEC_FILE_WRITE_DATA | SEC_FILE_APPEND_DATA,
e1->share_access, NTCREATEX_SHARE_ACCESS_WRITE);
CHECK_MASK(e1->access_mask, SEC_FILE_READ_DATA | SEC_FILE_EXECUTE,
- e2->share_access, NTCREATEX_SHARE_ACCESS_READ);
- CHECK_MASK(e2->access_mask, SEC_FILE_READ_DATA | SEC_FILE_EXECUTE,
+ share_access, NTCREATEX_SHARE_ACCESS_READ);
+ CHECK_MASK(access_mask, SEC_FILE_READ_DATA | SEC_FILE_EXECUTE,
e1->share_access, NTCREATEX_SHARE_ACCESS_READ);
CHECK_MASK(e1->access_mask, SEC_STD_DELETE,
- e2->share_access, NTCREATEX_SHARE_ACCESS_DELETE);
- CHECK_MASK(e2->access_mask, SEC_STD_DELETE,
+ share_access, NTCREATEX_SHARE_ACCESS_DELETE);
+ CHECK_MASK(access_mask, SEC_STD_DELETE,
e1->share_access, NTCREATEX_SHARE_ACCESS_DELETE);
-
+#undef CHECK_MASK
return NT_STATUS_OK;
}
struct odb_context *odb = lck->odb;
TDB_DATA dbuf;
DATA_BLOB blob;
- NTSTATUS status;
-
+ enum ndr_err_code ndr_err;
+
dbuf = tdb_fetch(odb->w->tdb, lck->key);
if (dbuf.dptr == NULL) {
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
blob.data = dbuf.dptr;
blob.length = dbuf.dsize;
- status = ndr_pull_struct_blob(&blob, lck, file, (ndr_pull_flags_fn_t)ndr_pull_opendb_file);
-
+ ndr_err = ndr_pull_struct_blob(&blob, lck, lp_iconv_convenience(lck->odb->ntvfs_ctx->lp_ctx), file, (ndr_pull_flags_fn_t)ndr_pull_opendb_file);
free(dbuf.dptr);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ return ndr_map_error2ntstatus(ndr_err);
+ }
- return status;
+ return NT_STATUS_OK;
}
/*
struct odb_context *odb = lck->odb;
TDB_DATA dbuf;
DATA_BLOB blob;
- NTSTATUS status;
+ enum ndr_err_code ndr_err;
int ret;
if (file->num_entries == 0) {
return NT_STATUS_OK;
}
- status = ndr_push_struct_blob(&blob, lck, file, (ndr_push_flags_fn_t)ndr_push_opendb_file);
- NT_STATUS_NOT_OK_RETURN(status);
+ ndr_err = ndr_push_struct_blob(&blob, lck, lp_iconv_convenience(lck->odb->ntvfs_ctx->lp_ctx), file, (ndr_push_flags_fn_t)ndr_push_opendb_file);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ return ndr_map_error2ntstatus(ndr_err);
+ }
dbuf.dptr = blob.data;
dbuf.dsize = blob.length;
/*
send an oplock break to a client
*/
-static NTSTATUS odb_oplock_break_send(struct odb_context *odb, struct opendb_entry *e)
+static NTSTATUS odb_oplock_break_send(struct messaging_context *msg_ctx,
+ struct opendb_entry *e,
+ uint8_t level)
{
+ NTSTATUS status;
+ struct opendb_oplock_break op_break;
+ DATA_BLOB blob;
+
+ ZERO_STRUCT(op_break);
+
/* tell the server handling this open file about the need to send the client
a break */
- return messaging_send_ptr(odb->ntvfs_ctx->msg_ctx, e->server,
- MSG_NTVFS_OPLOCK_BREAK, e->file_handle);
-}
+ op_break.file_handle = e->file_handle;
+ op_break.level = level;
-/*
- register an open file in the open files database. This implements the share_access
- rules
+ blob = data_blob_const(&op_break, sizeof(op_break));
- 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,
- uint32_t stream_id, uint32_t share_access,
- uint32_t access_mask, bool delete_on_close,
- const char *path,
- 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;
+ status = messaging_send(msg_ctx, e->server,
+ MSG_NTVFS_OPLOCK_BREAK, &blob);
+ NT_STATUS_NOT_OK_RETURN(status);
- if (odb->oplocks == false) {
- oplock_level = OPLOCK_NONE;
+ return NT_STATUS_OK;
+}
+
+static bool access_attributes_only(uint32_t access_mask,
+ uint32_t open_disposition,
+ bool break_to_none)
+{
+ switch (open_disposition) {
+ case NTCREATEX_DISP_SUPERSEDE:
+ case NTCREATEX_DISP_OVERWRITE_IF:
+ case NTCREATEX_DISP_OVERWRITE:
+ return false;
+ default:
+ break;
}
- 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);
+ if (break_to_none) {
+ return false;
}
- /* 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;
-
+#define CHECK_MASK(m,g) ((m) && (((m) & ~(g))==0) && (((m) & (g)) != 0))
+ return CHECK_MASK(access_mask,
+ SEC_STD_SYNCHRONIZE |
+ SEC_FILE_READ_ATTRIBUTE |
+ SEC_FILE_WRITE_ATTRIBUTE);
+#undef CHECK_MASK
+}
+
+static NTSTATUS odb_tdb_open_can_internal(struct odb_context *odb,
+ const struct opendb_file *file,
+ 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 *_attrs_only)
+{
+ NTSTATUS status;
+ uint32_t i;
+ bool attrs_only = false;
+
/* 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) {
+ for (i=0;i<file->num_entries;i++) {
+ if (file->entries[i].oplock_level == OPLOCK_BATCH) {
+ bool oplock_return = OPLOCK_BREAK_TO_LEVEL_II;
+ /* if this is an attribute only access
+ * it doesn't conflict with a BACTCH oplock
+ * but we'll not grant the oplock below
+ */
+ attrs_only = access_attributes_only(access_mask,
+ open_disposition,
+ break_to_none);
+ if (attrs_only) {
+ break;
+ }
/* a batch oplock caches close calls, which
means the client application might have
already closed the file. We have to allow
break request and suspending this call
until the break is acknowledged or the file
is closed */
- odb_oplock_break_send(odb, &file.entries[i]);
+ if (break_to_none ||
+ !file->entries[i].allow_level_II_oplock) {
+ oplock_return = OPLOCK_BREAK_TO_NONE;
+ }
+ odb_oplock_break_send(odb->ntvfs_ctx->msg_ctx,
+ &file->entries[i],
+ oplock_return);
return NT_STATUS_OPLOCK_NOT_GRANTED;
}
}
- if (file.delete_on_close ||
- (file.num_entries != 0 && delete_on_close)) {
+ if (file->delete_on_close) {
/* while delete on close is set, no new opens are allowed */
return NT_STATUS_DELETE_PENDING;
}
+ if (file->num_entries != 0 && delete_on_close) {
+ return NT_STATUS_SHARING_VIOLATION;
+ }
+
/* check for sharing violations */
- for (i=0;i<file.num_entries;i++) {
- status = share_conflict(&file.entries[i], &e);
+ for (i=0;i<file->num_entries;i++) {
+ status = share_conflict(&file->entries[i], stream_id,
+ share_access, access_mask);
NT_STATUS_NOT_OK_RETURN(status);
}
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]);
+ for (i=0;i<file->num_entries;i++) {
+ if (file->entries[i].oplock_level == OPLOCK_EXCLUSIVE) {
+ bool oplock_return = OPLOCK_BREAK_TO_LEVEL_II;
+ /* if this is an attribute only access
+ * it doesn't conflict with an EXCLUSIVE oplock
+ * but we'll not grant the oplock below
+ */
+ attrs_only = access_attributes_only(access_mask,
+ open_disposition,
+ break_to_none);
+ if (attrs_only) {
+ break;
+ }
+ /*
+ * send an oplock break to the holder of the
+ * oplock and tell caller to retry later
+ */
+ if (break_to_none ||
+ !file->entries[i].allow_level_II_oplock) {
+ oplock_return = OPLOCK_BREAK_TO_NONE;
+ }
+ odb_oplock_break_send(odb->ntvfs_ctx->msg_ctx,
+ &file->entries[i],
+ oplock_return);
return NT_STATUS_OPLOCK_NOT_GRANTED;
}
}
+ if (_attrs_only) {
+ *_attrs_only = attrs_only;
+ }
+ return NT_STATUS_OK;
+}
+
+/*
+ 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,
+ int *fd, bool allow_level_II_oplock,
+ uint32_t oplock_level, uint32_t *oplock_granted)
+{
+ struct odb_context *odb = lck->odb;
+
+ 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;
+ }
+
+ if (lck->file.path == NULL) {
+ lck->file.path = talloc_strdup(lck, path);
+ NT_STATUS_HAVE_NO_MEMORY(lck->file.path);
+ }
+
/*
- possibly grant an exclusive or batch oplock if this is the only client
- with the file open. We don't yet grant levelII oplocks.
+ possibly grant an exclusive, batch or level2 oplock
*/
- if (oplock_granted != NULL) {
- if ((oplock_level == OPLOCK_BATCH ||
- oplock_level == OPLOCK_EXCLUSIVE) &&
- file.num_entries == 0) {
- (*oplock_granted) = oplock_level;
+ if (lck->can_open.attrs_only) {
+ oplock_level = OPLOCK_NONE;
+ } else if (oplock_level == OPLOCK_EXCLUSIVE) {
+ if (lck->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 (lck->file.num_entries == 0) {
+ oplock_level = OPLOCK_BATCH;
+ } else if (allow_level_II_oplock) {
+ oplock_level = OPLOCK_LEVEL_II;
} else {
- (*oplock_granted) = OPLOCK_NONE;
+ oplock_level = OPLOCK_NONE;
+ }
+ } else if (oplock_level == OPLOCK_LEVEL_II) {
+ oplock_level = OPLOCK_LEVEL_II;
+ } else {
+ oplock_level = OPLOCK_NONE;
+ }
+
+ lck->can_open.e->file_handle = file_handle;
+ lck->can_open.e->fd = fd;
+ lck->can_open.e->allow_level_II_oplock = allow_level_II_oplock;
+ lck->can_open.e->oplock_level = oplock_level;
+
+ if (odb->lease_ctx && fd) {
+ NTSTATUS status;
+ status = sys_lease_setup(odb->lease_ctx, lck->can_open.e);
+ NT_STATUS_NOT_OK_RETURN(status);
+ }
+
+ if (oplock_granted) {
+ if (lck->can_open.e->oplock_level == OPLOCK_EXCLUSIVE) {
+ *oplock_granted = EXCLUSIVE_OPLOCK_RETURN;
+ } else if (lck->can_open.e->oplock_level == OPLOCK_BATCH) {
+ *oplock_granted = BATCH_OPLOCK_RETURN;
+ } else if (lck->can_open.e->oplock_level == OPLOCK_LEVEL_II) {
+ *oplock_granted = LEVEL_II_OPLOCK_RETURN;
+ } else {
+ *oplock_granted = NO_OPLOCK_RETURN;
}
- 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);
+ lck->file.entries = talloc_realloc(lck, lck->file.entries,
+ struct opendb_entry,
+ lck->file.num_entries+1);
+ NT_STATUS_HAVE_NO_MEMORY(lck->file.entries);
+
+ lck->file.entries[lck->file.num_entries] = *lck->can_open.e;
+ lck->file.num_entries++;
- file.entries[file.num_entries] = e;
- file.num_entries++;
+ talloc_free(lck->can_open.e);
+ lck->can_open.e = NULL;
- return odb_push_record(lck, &file);
+ return odb_push_record(lck, &lck->file);
}
static NTSTATUS odb_tdb_open_file_pending(struct odb_lock *lck, void *private)
{
struct odb_context *odb = lck->odb;
- struct opendb_file file;
- NTSTATUS status;
-
- status = odb_pull_record(lck, &file);
- NT_STATUS_NOT_OK_RETURN(status);
- file.pending = talloc_realloc(lck, file.pending, struct opendb_pending,
- file.num_pending+1);
- NT_STATUS_HAVE_NO_MEMORY(file.pending);
+ if (lck->file.path == NULL) {
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
+
+ lck->file.pending = talloc_realloc(lck, lck->file.pending,
+ struct opendb_pending,
+ lck->file.num_pending+1);
+ NT_STATUS_HAVE_NO_MEMORY(lck->file.pending);
- file.pending[file.num_pending].server = odb->ntvfs_ctx->server_id;
- file.pending[file.num_pending].notify_ptr = private;
+ lck->file.pending[lck->file.num_pending].server = odb->ntvfs_ctx->server_id;
+ lck->file.pending[lck->file.num_pending].notify_ptr = private;
- file.num_pending++;
+ lck->file.num_pending++;
- return odb_push_record(lck, &file);
+ return odb_push_record(lck, &lck->file);
}
/*
remove a opendb entry
*/
-static NTSTATUS odb_tdb_close_file(struct odb_lock *lck, void *file_handle)
+static NTSTATUS odb_tdb_close_file(struct odb_lock *lck, void *file_handle,
+ const char **_delete_path)
{
struct odb_context *odb = lck->odb;
- struct opendb_file file;
+ const char *delete_path = NULL;
int i;
- NTSTATUS status;
- status = odb_pull_record(lck, &file);
- NT_STATUS_NOT_OK_RETURN(status);
+ if (lck->file.path == NULL) {
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
/* find the entry, and delete it */
- for (i=0;i<file.num_entries;i++) {
- if (file_handle == file.entries[i].file_handle &&
- cluster_id_equal(&odb->ntvfs_ctx->server_id, &file.entries[i].server)) {
- if (file.entries[i].delete_on_close) {
- file.delete_on_close = true;
+ for (i=0;i<lck->file.num_entries;i++) {
+ if (file_handle == lck->file.entries[i].file_handle &&
+ cluster_id_equal(&odb->ntvfs_ctx->server_id, &lck->file.entries[i].server)) {
+ if (lck->file.entries[i].delete_on_close) {
+ lck->file.delete_on_close = true;
+ }
+ if (odb->lease_ctx && lck->file.entries[i].fd) {
+ NTSTATUS status;
+ status = sys_lease_remove(odb->lease_ctx, &lck->file.entries[i]);
+ NT_STATUS_NOT_OK_RETURN(status);
}
- if (i < file.num_entries-1) {
- memmove(file.entries+i, file.entries+i+1,
- (file.num_entries - (i+1)) *
+ if (i < lck->file.num_entries-1) {
+ memmove(lck->file.entries+i, lck->file.entries+i+1,
+ (lck->file.num_entries - (i+1)) *
sizeof(struct opendb_entry));
}
break;
}
}
- if (i == file.num_entries) {
+ if (i == lck->file.num_entries) {
return NT_STATUS_UNSUCCESSFUL;
}
/* send any pending notifications, removing them once sent */
- for (i=0;i<file.num_pending;i++) {
- messaging_send_ptr(odb->ntvfs_ctx->msg_ctx, file.pending[i].server,
- MSG_PVFS_RETRY_OPEN,
- file.pending[i].notify_ptr);
+ for (i=0;i<lck->file.num_pending;i++) {
+ messaging_send_ptr(odb->ntvfs_ctx->msg_ctx,
+ lck->file.pending[i].server,
+ MSG_PVFS_RETRY_OPEN,
+ lck->file.pending[i].notify_ptr);
}
- file.num_pending = 0;
+ lck->file.num_pending = 0;
- file.num_entries--;
-
- return odb_push_record(lck, &file);
+ lck->file.num_entries--;
+
+ if (lck->file.num_entries == 0 && lck->file.delete_on_close) {
+ delete_path = lck->file.path;
+ }
+
+ if (_delete_path) {
+ *_delete_path = delete_path;
+ }
+
+ return odb_push_record(lck, &lck->file);
+}
+
+/*
+ update the oplock level of the client
+*/
+static NTSTATUS odb_tdb_update_oplock(struct odb_lock *lck, void *file_handle,
+ uint32_t oplock_level)
+{
+ struct odb_context *odb = lck->odb;
+ int i;
+
+ if (lck->file.path == NULL) {
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
+
+ /* find the entry, and update it */
+ for (i=0;i<lck->file.num_entries;i++) {
+ if (file_handle == lck->file.entries[i].file_handle &&
+ cluster_id_equal(&odb->ntvfs_ctx->server_id, &lck->file.entries[i].server)) {
+ lck->file.entries[i].oplock_level = oplock_level;
+
+ if (odb->lease_ctx && lck->file.entries[i].fd) {
+ NTSTATUS status;
+ status = sys_lease_update(odb->lease_ctx, &lck->file.entries[i]);
+ NT_STATUS_NOT_OK_RETURN(status);
+ }
+
+ break;
+ }
+ }
+
+ if (i == lck->file.num_entries) {
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ /* send any pending notifications, removing them once sent */
+ for (i=0;i<lck->file.num_pending;i++) {
+ messaging_send_ptr(odb->ntvfs_ctx->msg_ctx,
+ lck->file.pending[i].server,
+ MSG_PVFS_RETRY_OPEN,
+ lck->file.pending[i].notify_ptr);
+ }
+ lck->file.num_pending = 0;
+
+ return odb_push_record(lck, &lck->file);
}
+/*
+ send oplocks breaks to none to all level2 holders
+*/
+static NTSTATUS odb_tdb_break_oplocks(struct odb_lock *lck)
+{
+ struct odb_context *odb = lck->odb;
+ int i;
+ bool modified = false;
+
+ /* see if anyone has an oplock, which we need to break */
+ for (i=0;i<lck->file.num_entries;i++) {
+ if (lck->file.entries[i].oplock_level == OPLOCK_LEVEL_II) {
+ /*
+ * there could be multiple level2 oplocks
+ * and we just send a break to none to all of them
+ * without waiting for a release
+ */
+ odb_oplock_break_send(odb->ntvfs_ctx->msg_ctx,
+ &lck->file.entries[i],
+ OPLOCK_BREAK_TO_NONE);
+ lck->file.entries[i].oplock_level = OPLOCK_NONE;
+ modified = true;
+ }
+ }
+
+ if (modified) {
+ return odb_push_record(lck, &lck->file);
+ }
+ return NT_STATUS_OK;
+}
/*
remove a pending opendb entry
{
struct odb_context *odb = lck->odb;
int i;
- NTSTATUS status;
- struct opendb_file file;
- status = odb_pull_record(lck, &file);
- NT_STATUS_NOT_OK_RETURN(status);
+ if (lck->file.path == NULL) {
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
/* find the entry, and delete it */
- for (i=0;i<file.num_pending;i++) {
- if (private == file.pending[i].notify_ptr &&
- cluster_id_equal(&odb->ntvfs_ctx->server_id, &file.pending[i].server)) {
- if (i < file.num_pending-1) {
- memmove(file.pending+i, file.pending+i+1,
- (file.num_pending - (i+1)) *
+ for (i=0;i<lck->file.num_pending;i++) {
+ if (private == lck->file.pending[i].notify_ptr &&
+ cluster_id_equal(&odb->ntvfs_ctx->server_id, &lck->file.pending[i].server)) {
+ if (i < lck->file.num_pending-1) {
+ memmove(lck->file.pending+i, lck->file.pending+i+1,
+ (lck->file.num_pending - (i+1)) *
sizeof(struct opendb_pending));
}
break;
}
}
- if (i == file.num_pending) {
+ if (i == lck->file.num_pending) {
return NT_STATUS_UNSUCCESSFUL;
}
- file.num_pending--;
+ lck->file.num_pending--;
- return odb_push_record(lck, &file);
+ return odb_push_record(lck, &lck->file);
}
*/
static NTSTATUS odb_tdb_rename(struct odb_lock *lck, const char *path)
{
- struct opendb_file file;
- NTSTATUS status;
-
- status = odb_pull_record(lck, &file);
- if (NT_STATUS_EQUAL(NT_STATUS_OBJECT_NAME_NOT_FOUND, status)) {
+ if (lck->file.path == NULL) {
/* not having the record at all is OK */
return NT_STATUS_OK;
}
- NT_STATUS_NOT_OK_RETURN(status);
- file.path = path;
- return odb_push_record(lck, &file);
+ lck->file.path = talloc_strdup(lck, path);
+ NT_STATUS_HAVE_NO_MEMORY(lck->file.path);
+
+ return odb_push_record(lck, &lck->file);
+}
+
+/*
+ get the path of an open file
+*/
+static NTSTATUS odb_tdb_get_path(struct odb_lock *lck, const char **path)
+{
+ *path = NULL;
+
+ /* we don't ignore NT_STATUS_OBJECT_NAME_NOT_FOUND here */
+ if (lck->file.path == NULL) {
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
+
+ *path = lck->file.path;
+
+ return NT_STATUS_OK;
}
/*
*/
static NTSTATUS odb_tdb_set_delete_on_close(struct odb_lock *lck, bool del_on_close)
{
- NTSTATUS status;
- struct opendb_file file;
-
- status = odb_pull_record(lck, &file);
- NT_STATUS_NOT_OK_RETURN(status);
+ if (lck->file.path == NULL) {
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
- file.delete_on_close = del_on_close;
+ lck->file.delete_on_close = del_on_close;
- return odb_push_record(lck, &file);
+ return odb_push_record(lck, &lck->file);
}
/*
people still have the file open
*/
static NTSTATUS odb_tdb_get_delete_on_close(struct odb_context *odb,
- DATA_BLOB *key, bool *del_on_close,
- int *open_count, char **path)
+ DATA_BLOB *key, bool *del_on_close)
{
- NTSTATUS status;
- struct opendb_file file;
struct odb_lock *lck;
+ (*del_on_close) = false;
+
lck = odb_lock(odb, odb, key);
NT_STATUS_HAVE_NO_MEMORY(lck);
- status = odb_pull_record(lck, &file);
- if (NT_STATUS_EQUAL(NT_STATUS_OBJECT_NAME_NOT_FOUND, status)) {
- talloc_free(lck);
- (*del_on_close) = false;
- return NT_STATUS_OK;
- }
- if (!NT_STATUS_IS_OK(status)) {
- talloc_free(lck);
- return status;
- }
-
- (*del_on_close) = file.delete_on_close;
- if (open_count != NULL) {
- (*open_count) = file.num_entries;
- }
- if (path != NULL) {
- *path = talloc_strdup(odb, file.path);
- NT_STATUS_HAVE_NO_MEMORY(*path);
- if (file.num_entries == 1 && file.entries[0].delete_on_close) {
- (*del_on_close) = true;
- }
- }
+ (*del_on_close) = lck->file.delete_on_close;
talloc_free(lck);
create_options and access_mask
*/
static NTSTATUS odb_tdb_can_open(struct odb_lock *lck,
- uint32_t share_access, uint32_t create_options,
- uint32_t access_mask)
+ uint32_t stream_id, uint32_t share_access,
+ uint32_t access_mask, bool delete_on_close,
+ uint32_t open_disposition, bool break_to_none)
{
struct odb_context *odb = lck->odb;
NTSTATUS status;
- struct opendb_file file;
- struct opendb_entry e;
- int i;
- status = odb_pull_record(lck, &file);
- if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
- return NT_STATUS_OK;
- }
+ status = odb_tdb_open_can_internal(odb, &lck->file, stream_id,
+ share_access, access_mask,
+ delete_on_close, open_disposition,
+ break_to_none, &lck->can_open.attrs_only);
NT_STATUS_NOT_OK_RETURN(status);
- if ((create_options & NTCREATEX_OPTIONS_DELETE_ON_CLOSE) &&
- file.num_entries != 0) {
- return NT_STATUS_SHARING_VIOLATION;
- }
+ lck->can_open.e = talloc(lck, struct opendb_entry);
+ NT_STATUS_HAVE_NO_MEMORY(lck->can_open.e);
- if (file.delete_on_close) {
- return NT_STATUS_DELETE_PENDING;
- }
-
- e.server = odb->ntvfs_ctx->server_id;
- e.file_handle = NULL;
- e.stream_id = 0;
- e.share_access = share_access;
- e.access_mask = access_mask;
-
- for (i=0;i<file.num_entries;i++) {
- status = share_conflict(&file.entries[i], &e);
- if (!NT_STATUS_IS_OK(status)) {
- /* note that we discard the error code
- here. We do this as unless we are actually
- doing an open (which comes via a different
- function), we need to return a sharing
- violation */
- return NT_STATUS_SHARING_VIOLATION;
- }
- }
+ lck->can_open.e->server = odb->ntvfs_ctx->server_id;
+ lck->can_open.e->file_handle = NULL;
+ lck->can_open.e->fd = 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;
}
static const struct opendb_ops opendb_tdb_ops = {
.odb_init = odb_tdb_init,
.odb_lock = odb_tdb_lock,
+ .odb_get_key = odb_tdb_get_key,
.odb_open_file = odb_tdb_open_file,
.odb_open_file_pending = odb_tdb_open_file_pending,
.odb_close_file = odb_tdb_close_file,
.odb_remove_pending = odb_tdb_remove_pending,
.odb_rename = odb_tdb_rename,
+ .odb_get_path = odb_tdb_get_path,
.odb_set_delete_on_close = odb_tdb_set_delete_on_close,
.odb_get_delete_on_close = odb_tdb_get_delete_on_close,
- .odb_can_open = odb_tdb_can_open
+ .odb_can_open = odb_tdb_can_open,
+ .odb_update_oplock = odb_tdb_update_oplock,
+ .odb_break_oplocks = odb_tdb_break_oplocks
};
void odb_tdb_init_ops(void)
{
+ sys_lease_init();
odb_set_ops(&opendb_tdb_ops);
}
git.samba.org / samba.git / blobdiff