return NT_STATUS_OK;
}
+static void smbd_smb2_create_before_exec(struct tevent_req *req);
static void smbd_smb2_create_finish(struct tevent_req *req);
static struct tevent_req *smbd_smb2_create_send(TALLOC_CTX *mem_ctx,
return req;
}
- if (state->exta != NULL) {
- if (!lp_ea_support(SNUM(smb2req->tcon->compat))) {
- tevent_req_nterror(req,
- NT_STATUS_EAS_NOT_SUPPORTED);
- return tevent_req_post(req, state->ev);
- }
+ smbd_smb2_create_before_exec(req);
+ if (!tevent_req_is_in_progress(req)) {
+ return tevent_req_post(req, state->ev);
+ }
- state->ea_list = read_nttrans_ea_list(
- state,
- (const char *)state->exta->data.data,
- state->exta->data.length);
- if (state->ea_list == NULL) {
- DEBUG(10,("smbd_smb2_create_send: read_ea_name_list failed.\n"));
- tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
- return tevent_req_post(req, state->ev);
- }
+ DEBUG(10, ("smbd_smb2_create_send: open execution phase\n"));
- /*
- * NB. When SMB2+ unix extensions are added,
- * we need to relax this check in invalid
- * names - we used to not do this if
- * lp_posix_pathnames() was false.
- */
- if (ea_list_has_invalid_name(state->ea_list)) {
- tevent_req_nterror(req, STATUS_INVALID_EA_NAME);
- return tevent_req_post(req, state->ev);
- }
- }
+ /*
+ * For the backend file open procedure, there are
+ * three possible modes: replay operation (in which case
+ * there is nothing else to do), durable_reconnect or
+ * new open.
+ */
+ if (state->replay_operation) {
+ state->result = state->op->compat;
+ state->result->op = state->op;
+ state->update_open = false;
+ state->info = state->op->create_action;
+ } else if (state->do_durable_reconnect) {
+ DATA_BLOB new_cookie = data_blob_null;
+ NTTIME now = timeval_to_nttime(&smb2req->request_time);
- if (state->mxac != NULL) {
- if (state->mxac->data.length == 0) {
- state->max_access_time = 0;
- } else if (state->mxac->data.length == 8) {
- state->max_access_time = BVAL(state->mxac->data.data, 0);
- } else {
- tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ status = smb2srv_open_recreate(smb2req->xconn,
+ smb1req->conn->session_info,
+ state->persistent_id,
+ state->create_guid,
+ now,
+ &state->op);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("smbd_smb2_create_send: "
+ "smb2srv_open_recreate failed: %s\n",
+ nt_errstr(status)));
+ tevent_req_nterror(req, status);
return tevent_req_post(req, state->ev);
}
- }
- if (state->secd != NULL) {
- enum ndr_err_code ndr_err;
+ DEBUG(10, ("smb2_create_send: %s to recreate the "
+ "smb2srv_open struct for a durable handle.\n",
+ state->op->global->durable ? "succeeded" : "failed"));
- state->sec_desc = talloc_zero(state, struct security_descriptor);
- if (tevent_req_nomem(state->sec_desc, req)) {
+ if (!state->op->global->durable) {
+ talloc_free(state->op);
+ tevent_req_nterror(req,
+ NT_STATUS_OBJECT_NAME_NOT_FOUND);
return tevent_req_post(req, state->ev);
}
- ndr_err = ndr_pull_struct_blob(&state->secd->data,
- state->sec_desc, state->sec_desc,
- (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- DEBUG(2,("ndr_pull_security_descriptor failed: %s\n",
- ndr_errstr(ndr_err)));
- tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
- return tevent_req_post(req, state->ev);
- }
- }
+ status = SMB_VFS_DURABLE_RECONNECT(smb1req->conn,
+ smb1req,
+ state->op, /* smbXsrv_open input */
+ state->op->global->backend_cookie,
+ state->op, /* TALLOC_CTX */
+ &state->result,
+ &new_cookie);
+ if (!NT_STATUS_IS_OK(status)) {
+ NTSTATUS return_status;
- if (state->dhnq != NULL) {
- if (state->dhnq->data.length != 16) {
- tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+
+ DEBUG(3, ("smbd_smb2_create_send: "
+ "durable_reconnect failed: %s => %s\n",
+ nt_errstr(status),
+ nt_errstr(return_status)));
+
+ tevent_req_nterror(req, return_status);
return tevent_req_post(req, state->ev);
}
- if (state->dh2q != NULL) {
- tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ DEBUG(10, ("result->oplock_type=%u, lease_ptr==%p\n",
+ (unsigned)state->result->oplock_type, state->lease_ptr));
+
+ status = smbd_smb2_create_durable_lease_check(
+ smb1req, state->fname, state->result, state->lease_ptr);
+ if (!NT_STATUS_IS_OK(status)) {
+ close_file(smb1req, state->result, SHUTDOWN_CLOSE);
+ tevent_req_nterror(req, status);
return tevent_req_post(req, state->ev);
}
- /*
- * durable handle request is processed below.
- */
- state->durable_requested = true;
- /*
- * Set the timeout to 16 mins.
- *
- * TODO: test this against Windows 2012
- * as the default for durable v2 is 1 min.
- */
- state->durable_timeout_msec = (16*60*1000);
- }
+ data_blob_free(&state->op->global->backend_cookie);
+ state->op->global->backend_cookie = new_cookie;
- if (state->dh2q != NULL) {
- const uint8_t *p = state->dh2q->data.data;
- uint32_t durable_v2_timeout = 0;
- DATA_BLOB create_guid_blob;
- const uint8_t *hdr;
- uint32_t flags;
+ state->op->status = NT_STATUS_OK;
+ state->op->global->disconnect_time = 0;
- if (state->dh2q->data.length != 32) {
- tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
- return tevent_req_post(req, state->ev);
- }
+ /* save the timout for later update */
+ state->durable_timeout_msec = state->op->global->durable_timeout_msec;
- if (state->dhnq != NULL) {
- tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
- return tevent_req_post(req, state->ev);
- }
+ state->update_open = true;
- durable_v2_timeout = IVAL(p, 0);
- create_guid_blob = data_blob_const(p + 16, 16);
+ state->info = FILE_WAS_OPENED;
+ } else {
+ struct smb_filename *smb_fname = NULL;
+ uint32_t ucf_flags;
- status = GUID_from_ndr_blob(&create_guid_blob,
- &state->_create_guid);
- if (tevent_req_nterror(req, status)) {
- return tevent_req_post(req, state->ev);
+ if (state->requested_oplock_level == SMB2_OPLOCK_LEVEL_LEASE) {
+ if (state->lease_ptr == NULL) {
+ state->requested_oplock_level = SMB2_OPLOCK_LEVEL_NONE;
+ }
+ } else {
+ state->lease_ptr = NULL;
}
- state->create_guid = &state->_create_guid;
/*
- * we need to store the create_guid later
+ * For a DFS path the function parse_dfs_path()
+ * will do the path processing.
*/
- state->update_open = true;
- /*
- * And we need to create a cache for replaying the
- * create.
- */
- state->need_replay_cache = true;
+ if (!(smb1req->flags2 & FLAGS2_DFS_PATHNAMES)) {
+ /* convert '\\' into '/' */
+ status = check_path_syntax(state->fname);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, state->ev);
+ }
+ }
- /*
- * durable handle v2 request processed below
- */
- state->durable_requested = true;
- state->durable_timeout_msec = durable_v2_timeout;
- if (state->durable_timeout_msec == 0) {
- /*
- * Set the timeout to 1 min as default.
- *
- * This matches Windows 2012.
- */
- state->durable_timeout_msec = (60*1000);
+ ucf_flags = filename_create_ucf_flags(
+ smb1req, state->in_create_disposition);
+ status = filename_convert(req,
+ smb1req->conn,
+ state->fname,
+ ucf_flags,
+ NULL, /* ppath_contains_wcards */
+ &smb_fname);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, state->ev);
}
/*
- * Check for replay operation.
- * Only consider it when we have dh2q.
- * If we do not have a replay operation, verify that
- * the create_guid is not cached for replay.
+ * MS-SMB2: 2.2.13 SMB2 CREATE Request
+ * ImpersonationLevel ... MUST contain one of the
+ * following values. The server MUST validate this
+ * field, but otherwise ignore it.
+ *
+ * NB. The source4/torture/smb2/durable_open.c test
+ * shows this check is only done on real opens, not
+ * on durable handle-reopens.
*/
- hdr = SMBD_SMB2_IN_HDR_PTR(smb2req);
- flags = IVAL(hdr, SMB2_HDR_FLAGS);
- state->replay_operation =
- flags & SMB2_HDR_FLAG_REPLAY_OPERATION;
- status = smb2srv_open_lookup_replay_cache(smb2req->xconn,
- state->create_guid,
- 0 /* now */,
- &state->op);
- if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
- state->replay_operation = false;
- } else if (tevent_req_nterror(req, status)) {
- DBG_WARNING("smb2srv_open_lookup_replay_cache "
- "failed: %s\n", nt_errstr(status));
+ if (in_impersonation_level >
+ SMB2_IMPERSONATION_DELEGATE) {
+ tevent_req_nterror(req,
+ NT_STATUS_BAD_IMPERSONATION_LEVEL);
return tevent_req_post(req, state->ev);
- } else if (!state->replay_operation) {
- /*
- * If a create without replay operation flag
- * is sent but with a create_guid that is
- * currently in the replay cache -- fail.
- */
- status = NT_STATUS_DUPLICATE_OBJECTID;
- (void)tevent_req_nterror(req, status);
+ }
+
+ /*
+ * We know we're going to do a local open, so now
+ * we must be protocol strict. JRA.
+ *
+ * MS-SMB2: 3.3.5.9 - Receiving an SMB2 CREATE Request
+ * If the file name length is greater than zero and the
+ * first character is a path separator character, the
+ * server MUST fail the request with
+ * STATUS_INVALID_PARAMETER.
+ */
+ if (in_name[0] == '\\' || in_name[0] == '/') {
+ tevent_req_nterror(req,
+ NT_STATUS_INVALID_PARAMETER);
return tevent_req_post(req, state->ev);
}
- }
- if (state->dhnc != NULL) {
- state->persistent_id = BVAL(state->dhnc->data.data, 0);
- state->do_durable_reconnect = true;
+ status = SMB_VFS_CREATE_FILE(smb1req->conn,
+ smb1req,
+ 0, /* root_dir_fid */
+ smb_fname,
+ in_desired_access,
+ in_share_access,
+ state->in_create_disposition,
+ in_create_options,
+ in_file_attributes,
+ map_smb2_oplock_levels_to_samba(
+ state->requested_oplock_level),
+ state->lease_ptr,
+ state->allocation_size,
+ 0, /* private_flags */
+ state->sec_desc,
+ state->ea_list,
+ &state->result,
+ &state->info,
+ &in_context_blobs,
+ state->out_context_blobs);
+ if (!NT_STATUS_IS_OK(status)) {
+ if (open_was_deferred(smb1req->xconn, smb1req->mid)) {
+ SMBPROFILE_IOBYTES_ASYNC_SET_IDLE(smb2req->profile);
+ return req;
+ }
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, state->ev);
+ }
+ state->op = state->result->op;
}
- if (state->dh2c != NULL) {
- const uint8_t *p = state->dh2c->data.data;
- DATA_BLOB create_guid_blob;
+ /*
+ * here we have op == state->result->op
+ */
- state->persistent_id = BVAL(p, 0);
- create_guid_blob = data_blob_const(p + 16, 16);
+ DEBUG(10, ("smbd_smb2_create_send: "
+ "response construction phase\n"));
- status = GUID_from_ndr_blob(&create_guid_blob,
- &state->_create_guid);
- if (tevent_req_nterror(req, status)) {
- return tevent_req_post(req, state->ev);
+ if (state->mxac != NULL) {
+ NTTIME last_write_time;
+
+ last_write_time = unix_timespec_to_nt_time(
+ state->result->fsp_name->st.st_ex_mtime);
+ if (last_write_time != state->max_access_time) {
+ uint8_t p[8];
+ uint32_t max_access_granted;
+ DATA_BLOB blob = data_blob_const(p, sizeof(p));
+
+ status = smbd_calculate_access_mask(smb1req->conn,
+ state->result->fsp_name,
+ false,
+ SEC_FLAG_MAXIMUM_ALLOWED,
+ &max_access_granted);
+
+ SIVAL(p, 0, NT_STATUS_V(status));
+ SIVAL(p, 4, max_access_granted);
+
+ status = smb2_create_blob_add(
+ state->out_context_blobs,
+ state->out_context_blobs,
+ SMB2_CREATE_TAG_MXAC,
+ blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, state->ev);
+ }
}
+ }
- state->create_guid = &state->_create_guid;
- state->do_durable_reconnect = true;
+ if (!state->replay_operation && state->durable_requested &&
+ (fsp_lease_type(state->result) & SMB2_LEASE_HANDLE))
+ {
+ status = SMB_VFS_DURABLE_COOKIE(
+ state->result,
+ state->op,
+ &state->op->global->backend_cookie);
+ if (!NT_STATUS_IS_OK(status)) {
+ state->op->global->backend_cookie = data_blob_null;
+ }
+ }
+ if (!state->replay_operation && state->op->global->backend_cookie.length > 0)
+ {
+ state->update_open = true;
+
+ state->op->global->durable = true;
+ state->op->global->durable_timeout_msec = state->durable_timeout_msec;
}
- if (state->alsi != NULL) {
- if (state->alsi->data.length != 8) {
- tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ if (state->update_open) {
+ state->op->global->create_guid = state->_create_guid;
+ if (state->need_replay_cache) {
+ state->op->flags |= SMBXSRV_OPEN_NEED_REPLAY_CACHE;
+ }
+
+ status = smbXsrv_open_update(state->op);
+ DEBUG(10, ("smb2_create_send: smbXsrv_open_update "
+ "returned %s\n",
+ nt_errstr(status)));
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
return tevent_req_post(req, state->ev);
}
- state->allocation_size = BVAL(state->alsi->data.data, 0);
}
- if (state->twrp != NULL) {
- NTTIME nttime;
- time_t t;
- struct tm *tm;
- char *tmpname = state->fname;
+ if (state->dhnq != NULL && state->op->global->durable) {
+ uint8_t p[8] = { 0, };
+ DATA_BLOB blob = data_blob_const(p, sizeof(p));
- if (state->twrp->data.length != 8) {
- tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ status = smb2_create_blob_add(state->out_context_blobs,
+ state->out_context_blobs,
+ SMB2_CREATE_TAG_DHNQ,
+ blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
return tevent_req_post(req, state->ev);
}
+ }
- nttime = BVAL(state->twrp->data.data, 0);
- t = nt_time_to_unix(nttime);
- tm = gmtime(&t);
+ if (state->dh2q != NULL && state->op->global->durable &&
+ /*
+ * For replay operations, we return the dh2q blob
+ * in the case of oplocks not based on the state of
+ * the open, but on whether it could have been granted
+ * for the request data. In the case of leases instead,
+ * the state of the open is used...
+ */
+ (!state->replay_operation ||
+ state->in_oplock_level == SMB2_OPLOCK_LEVEL_BATCH ||
+ state->in_oplock_level == SMB2_OPLOCK_LEVEL_LEASE))
+ {
+ uint8_t p[8] = { 0, };
+ DATA_BLOB blob = data_blob_const(p, sizeof(p));
+ uint32_t durable_v2_response_flags = 0;
- state->fname = talloc_asprintf(
- state,
- "%s\\@GMT-%04u.%02u.%02u-%02u.%02u.%02u",
- state->fname,
- tm->tm_year + 1900,
- tm->tm_mon + 1,
- tm->tm_mday,
- tm->tm_hour,
- tm->tm_min,
- tm->tm_sec);
- if (tevent_req_nomem(state->fname, req)) {
+ SIVAL(p, 0, state->op->global->durable_timeout_msec);
+ SIVAL(p, 4, durable_v2_response_flags);
+
+ status = smb2_create_blob_add(state->out_context_blobs,
+ state->out_context_blobs,
+ SMB2_CREATE_TAG_DH2Q,
+ blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
return tevent_req_post(req, state->ev);
}
- TALLOC_FREE(tmpname);
- /*
- * Tell filename_create_ucf_flags() this
- * is an @GMT path.
- */
- smb1req->flags2 |= FLAGS2_REPARSE_PATH;
}
if (state->qfid != NULL) {
- if (state->qfid->data.length != 0) {
- tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ uint8_t p[32];
+ uint64_t file_index = get_FileIndex(state->result->conn,
+ &state->result->fsp_name->st);
+ DATA_BLOB blob = data_blob_const(p, sizeof(p));
+
+ ZERO_STRUCT(p);
+
+ /* From conversations with Microsoft engineers at
+ the MS plugfest. The first 8 bytes are the "volume index"
+ == inode, the second 8 bytes are the "volume id",
+ == dev. This will be updated in the SMB2 doc. */
+ SBVAL(p, 0, file_index);
+ SIVAL(p, 8, state->result->fsp_name->st.st_ex_dev);/* FileIndexHigh */
+
+ status = smb2_create_blob_add(state->out_context_blobs,
+ state->out_context_blobs,
+ SMB2_CREATE_TAG_QFID,
+ blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
return tevent_req_post(req, state->ev);
}
}
- if (state->rqls != NULL) {
- ssize_t lease_len = -1;
+ if ((state->rqls != NULL) && (state->result->oplock_type == LEASE_OPLOCK)) {
+ uint8_t buf[52];
+ struct smb2_lease lease;
+ size_t lease_len;
- lease_len = smb2_lease_pull(state->rqls->data.data,
- state->rqls->data.length,
- &state->lease);
- if (lease_len == -1) {
+ lease = state->result->lease->lease;
+
+ lease_len = sizeof(buf);
+ if (lease.lease_version == 1) {
+ lease_len = 32;
+ }
+
+ if (!smb2_lease_push(&lease, buf, lease_len)) {
tevent_req_nterror(
- req, NT_STATUS_INVALID_PARAMETER);
+ req, NT_STATUS_INTERNAL_ERROR);
return tevent_req_post(req, state->ev);
}
- state->lease_ptr = &state->lease;
- if (DEBUGLEVEL >= 10) {
- DEBUG(10, ("Got lease request size %d\n",
- (int)lease_len));
- NDR_PRINT_DEBUG(smb2_lease, state->lease_ptr);
+ status = smb2_create_blob_add(
+ state, state->out_context_blobs,
+ SMB2_CREATE_TAG_RQLS,
+ data_blob_const(buf, lease_len));
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, state->ev);
}
+ }
- if (!smb2_lease_key_valid(&state->lease.lease_key)) {
- state->lease_ptr = NULL;
- state->requested_oplock_level = SMB2_OPLOCK_LEVEL_NONE;
+ smbd_smb2_create_finish(req);
+ return req;
+}
+
+static void smbd_smb2_create_before_exec(struct tevent_req *req)
+{
+ struct smbd_smb2_create_state *state = tevent_req_data(
+ req, struct smbd_smb2_create_state);
+ struct smb_request *smb1req = state->smb1req;
+ struct smbd_smb2_request *smb2req = state->smb2req;
+ NTSTATUS status;
+
+ if (state->exta != NULL) {
+ if (!lp_ea_support(SNUM(smb2req->tcon->compat))) {
+ tevent_req_nterror(req, NT_STATUS_EAS_NOT_SUPPORTED);
+ return;
}
- if ((smb2req->xconn->protocol < PROTOCOL_SMB3_00) &&
- (state->lease.lease_version != 1))
- {
- DEBUG(10, ("v2 lease key only for SMB3\n"));
- state->lease_ptr = NULL;
+ state->ea_list = read_nttrans_ea_list(
+ state,
+ (const char *)state->exta->data.data,
+ state->exta->data.length);
+ if (state->ea_list == NULL) {
+ DEBUG(10,("smbd_smb2_create_send: read_ea_name_list failed.\n"));
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return;
}
/*
- * Replay with a lease is only allowed if the
- * established open carries a lease with the
- * same lease key.
+ * NB. When SMB2+ unix extensions are added,
+ * we need to relax this check in invalid
+ * names - we used to not do this if
+ * lp_posix_pathnames() was false.
*/
- if (state->replay_operation) {
- struct smb2_lease *op_ls =
- &state->op->compat->lease->lease;
- int op_oplock = state->op->compat->oplock_type;
-
- if (map_samba_oplock_levels_to_smb2(op_oplock)
- != SMB2_OPLOCK_LEVEL_LEASE)
- {
- status = NT_STATUS_ACCESS_DENIED;
- (void)tevent_req_nterror(req, status);
- return tevent_req_post(req, state->ev);
- }
- if (!smb2_lease_key_equal(&state->lease.lease_key,
- &op_ls->lease_key))
- {
- status = NT_STATUS_ACCESS_DENIED;
- (void)tevent_req_nterror(req, status);
- return tevent_req_post(req, state->ev);
- }
+ if (ea_list_has_invalid_name(state->ea_list)) {
+ tevent_req_nterror(req, STATUS_INVALID_EA_NAME);
+ return;
}
}
- DEBUG(10, ("smbd_smb2_create_send: open execution phase\n"));
-
- /*
- * For the backend file open procedure, there are
- * three possible modes: replay operation (in which case
- * there is nothing else to do), durable_reconnect or
- * new open.
- */
- if (state->replay_operation) {
- state->result = state->op->compat;
- state->result->op = state->op;
- state->update_open = false;
- state->info = state->op->create_action;
- } else if (state->do_durable_reconnect) {
- DATA_BLOB new_cookie = data_blob_null;
- NTTIME now = timeval_to_nttime(&smb2req->request_time);
-
- status = smb2srv_open_recreate(smb2req->xconn,
- smb1req->conn->session_info,
- state->persistent_id,
- state->create_guid,
- now,
- &state->op);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(3, ("smbd_smb2_create_send: "
- "smb2srv_open_recreate failed: %s\n",
- nt_errstr(status)));
- tevent_req_nterror(req, status);
- return tevent_req_post(req, state->ev);
+ if (state->mxac != NULL) {
+ if (state->mxac->data.length == 0) {
+ state->max_access_time = 0;
+ } else if (state->mxac->data.length == 8) {
+ state->max_access_time = BVAL(state->mxac->data.data, 0);
+ } else {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return;
}
+ }
- DEBUG(10, ("smb2_create_send: %s to recreate the "
- "smb2srv_open struct for a durable handle.\n",
- state->op->global->durable ? "succeeded" : "failed"));
+ if (state->secd != NULL) {
+ enum ndr_err_code ndr_err;
- if (!state->op->global->durable) {
- talloc_free(state->op);
- tevent_req_nterror(req,
- NT_STATUS_OBJECT_NAME_NOT_FOUND);
- return tevent_req_post(req, state->ev);
+ state->sec_desc = talloc_zero(state, struct security_descriptor);
+ if (tevent_req_nomem(state->sec_desc, req)) {
+ return;
}
- status = SMB_VFS_DURABLE_RECONNECT(smb1req->conn,
- smb1req,
- state->op, /* smbXsrv_open input */
- state->op->global->backend_cookie,
- state->op, /* TALLOC_CTX */
- &state->result,
- &new_cookie);
- if (!NT_STATUS_IS_OK(status)) {
- NTSTATUS return_status;
-
- return_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
-
- DEBUG(3, ("smbd_smb2_create_send: "
- "durable_reconnect failed: %s => %s\n",
- nt_errstr(status),
- nt_errstr(return_status)));
-
- tevent_req_nterror(req, return_status);
- return tevent_req_post(req, state->ev);
+ ndr_err = ndr_pull_struct_blob(&state->secd->data,
+ state->sec_desc, state->sec_desc,
+ (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ DEBUG(2,("ndr_pull_security_descriptor failed: %s\n",
+ ndr_errstr(ndr_err)));
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return;
}
+ }
- DEBUG(10, ("result->oplock_type=%u, lease_ptr==%p\n",
- (unsigned)state->result->oplock_type, state->lease_ptr));
-
- status = smbd_smb2_create_durable_lease_check(
- smb1req, state->fname, state->result, state->lease_ptr);
- if (!NT_STATUS_IS_OK(status)) {
- close_file(smb1req, state->result, SHUTDOWN_CLOSE);
- tevent_req_nterror(req, status);
- return tevent_req_post(req, state->ev);
+ if (state->dhnq != NULL) {
+ if (state->dhnq->data.length != 16) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return;
}
- data_blob_free(&state->op->global->backend_cookie);
- state->op->global->backend_cookie = new_cookie;
-
- state->op->status = NT_STATUS_OK;
- state->op->global->disconnect_time = 0;
-
- /* save the timout for later update */
- state->durable_timeout_msec = state->op->global->durable_timeout_msec;
-
- state->update_open = true;
-
- state->info = FILE_WAS_OPENED;
- } else {
- struct smb_filename *smb_fname = NULL;
- uint32_t ucf_flags;
-
- if (state->requested_oplock_level == SMB2_OPLOCK_LEVEL_LEASE) {
- if (state->lease_ptr == NULL) {
- state->requested_oplock_level = SMB2_OPLOCK_LEVEL_NONE;
- }
- } else {
- state->lease_ptr = NULL;
+ if (state->dh2q != NULL) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return;
}
/*
- * For a DFS path the function parse_dfs_path()
- * will do the path processing.
+ * durable handle request is processed below.
*/
-
- if (!(smb1req->flags2 & FLAGS2_DFS_PATHNAMES)) {
- /* convert '\\' into '/' */
- status = check_path_syntax(state->fname);
- if (!NT_STATUS_IS_OK(status)) {
- tevent_req_nterror(req, status);
- return tevent_req_post(req, state->ev);
- }
- }
-
- ucf_flags = filename_create_ucf_flags(
- smb1req, state->in_create_disposition);
- status = filename_convert(req,
- smb1req->conn,
- state->fname,
- ucf_flags,
- NULL, /* ppath_contains_wcards */
- &smb_fname);
- if (!NT_STATUS_IS_OK(status)) {
- tevent_req_nterror(req, status);
- return tevent_req_post(req, state->ev);
- }
-
+ state->durable_requested = true;
/*
- * MS-SMB2: 2.2.13 SMB2 CREATE Request
- * ImpersonationLevel ... MUST contain one of the
- * following values. The server MUST validate this
- * field, but otherwise ignore it.
+ * Set the timeout to 16 mins.
*
- * NB. The source4/torture/smb2/durable_open.c test
- * shows this check is only done on real opens, not
- * on durable handle-reopens.
+ * TODO: test this against Windows 2012
+ * as the default for durable v2 is 1 min.
*/
+ state->durable_timeout_msec = (16*60*1000);
+ }
- if (in_impersonation_level >
- SMB2_IMPERSONATION_DELEGATE) {
- tevent_req_nterror(req,
- NT_STATUS_BAD_IMPERSONATION_LEVEL);
- return tevent_req_post(req, state->ev);
- }
+ if (state->dh2q != NULL) {
+ const uint8_t *p = state->dh2q->data.data;
+ uint32_t durable_v2_timeout = 0;
+ DATA_BLOB create_guid_blob;
+ const uint8_t *hdr;
+ uint32_t flags;
- /*
- * We know we're going to do a local open, so now
- * we must be protocol strict. JRA.
- *
- * MS-SMB2: 3.3.5.9 - Receiving an SMB2 CREATE Request
- * If the file name length is greater than zero and the
- * first character is a path separator character, the
- * server MUST fail the request with
- * STATUS_INVALID_PARAMETER.
- */
- if (in_name[0] == '\\' || in_name[0] == '/') {
- tevent_req_nterror(req,
- NT_STATUS_INVALID_PARAMETER);
- return tevent_req_post(req, state->ev);
+ if (state->dh2q->data.length != 32) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return;
}
- status = SMB_VFS_CREATE_FILE(smb1req->conn,
- smb1req,
- 0, /* root_dir_fid */
- smb_fname,
- in_desired_access,
- in_share_access,
- state->in_create_disposition,
- in_create_options,
- in_file_attributes,
- map_smb2_oplock_levels_to_samba(
- state->requested_oplock_level),
- state->lease_ptr,
- state->allocation_size,
- 0, /* private_flags */
- state->sec_desc,
- state->ea_list,
- &state->result,
- &state->info,
- &in_context_blobs,
- state->out_context_blobs);
- if (!NT_STATUS_IS_OK(status)) {
- if (open_was_deferred(smb1req->xconn, smb1req->mid)) {
- SMBPROFILE_IOBYTES_ASYNC_SET_IDLE(smb2req->profile);
- return req;
- }
- tevent_req_nterror(req, status);
- return tevent_req_post(req, state->ev);
+ if (state->dhnq != NULL) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return;
}
- state->op = state->result->op;
- }
- /*
- * here we have op == state->result->op
- */
+ durable_v2_timeout = IVAL(p, 0);
+ create_guid_blob = data_blob_const(p + 16, 16);
- DEBUG(10, ("smbd_smb2_create_send: "
- "response construction phase\n"));
+ status = GUID_from_ndr_blob(&create_guid_blob,
+ &state->_create_guid);
+ if (tevent_req_nterror(req, status)) {
+ return;
+ }
+ state->create_guid = &state->_create_guid;
- if (state->mxac != NULL) {
- NTTIME last_write_time;
+ /*
+ * we need to store the create_guid later
+ */
+ state->update_open = true;
- last_write_time = unix_timespec_to_nt_time(
- state->result->fsp_name->st.st_ex_mtime);
- if (last_write_time != state->max_access_time) {
- uint8_t p[8];
- uint32_t max_access_granted;
- DATA_BLOB blob = data_blob_const(p, sizeof(p));
+ /*
+ * And we need to create a cache for replaying the
+ * create.
+ */
+ state->need_replay_cache = true;
- status = smbd_calculate_access_mask(smb1req->conn,
- state->result->fsp_name,
- false,
- SEC_FLAG_MAXIMUM_ALLOWED,
- &max_access_granted);
+ /*
+ * durable handle v2 request processed below
+ */
+ state->durable_requested = true;
+ state->durable_timeout_msec = durable_v2_timeout;
+ if (state->durable_timeout_msec == 0) {
+ /*
+ * Set the timeout to 1 min as default.
+ *
+ * This matches Windows 2012.
+ */
+ state->durable_timeout_msec = (60*1000);
+ }
- SIVAL(p, 0, NT_STATUS_V(status));
- SIVAL(p, 4, max_access_granted);
+ /*
+ * Check for replay operation.
+ * Only consider it when we have dh2q.
+ * If we do not have a replay operation, verify that
+ * the create_guid is not cached for replay.
+ */
+ hdr = SMBD_SMB2_IN_HDR_PTR(smb2req);
+ flags = IVAL(hdr, SMB2_HDR_FLAGS);
+ state->replay_operation =
+ flags & SMB2_HDR_FLAG_REPLAY_OPERATION;
- status = smb2_create_blob_add(
- state->out_context_blobs,
- state->out_context_blobs,
- SMB2_CREATE_TAG_MXAC,
- blob);
- if (!NT_STATUS_IS_OK(status)) {
- tevent_req_nterror(req, status);
- return tevent_req_post(req, state->ev);
- }
+ status = smb2srv_open_lookup_replay_cache(smb2req->xconn,
+ state->create_guid,
+ 0 /* now */,
+ &state->op);
+ if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
+ state->replay_operation = false;
+ } else if (tevent_req_nterror(req, status)) {
+ DBG_WARNING("smb2srv_open_lookup_replay_cache "
+ "failed: %s\n", nt_errstr(status));
+ return;
+ } else if (!state->replay_operation) {
+ /*
+ * If a create without replay operation flag
+ * is sent but with a create_guid that is
+ * currently in the replay cache -- fail.
+ */
+ status = NT_STATUS_DUPLICATE_OBJECTID;
+ (void)tevent_req_nterror(req, status);
+ return;
}
}
- if (!state->replay_operation && state->durable_requested &&
- (fsp_lease_type(state->result) & SMB2_LEASE_HANDLE))
- {
- status = SMB_VFS_DURABLE_COOKIE(
- state->result,
- state->op,
- &state->op->global->backend_cookie);
- if (!NT_STATUS_IS_OK(status)) {
- state->op->global->backend_cookie = data_blob_null;
- }
+ if (state->dhnc != NULL) {
+ state->persistent_id = BVAL(state->dhnc->data.data, 0);
+ state->do_durable_reconnect = true;
}
- if (!state->replay_operation && state->op->global->backend_cookie.length > 0)
- {
- state->update_open = true;
- state->op->global->durable = true;
- state->op->global->durable_timeout_msec = state->durable_timeout_msec;
- }
+ if (state->dh2c != NULL) {
+ const uint8_t *p = state->dh2c->data.data;
+ DATA_BLOB create_guid_blob;
- if (state->update_open) {
- state->op->global->create_guid = state->_create_guid;
- if (state->need_replay_cache) {
- state->op->flags |= SMBXSRV_OPEN_NEED_REPLAY_CACHE;
- }
+ state->persistent_id = BVAL(p, 0);
+ create_guid_blob = data_blob_const(p + 16, 16);
- status = smbXsrv_open_update(state->op);
- DEBUG(10, ("smb2_create_send: smbXsrv_open_update "
- "returned %s\n",
- nt_errstr(status)));
- if (!NT_STATUS_IS_OK(status)) {
- tevent_req_nterror(req, status);
- return tevent_req_post(req, state->ev);
+ status = GUID_from_ndr_blob(&create_guid_blob,
+ &state->_create_guid);
+ if (tevent_req_nterror(req, status)) {
+ return;
}
- }
- if (state->dhnq != NULL && state->op->global->durable) {
- uint8_t p[8] = { 0, };
- DATA_BLOB blob = data_blob_const(p, sizeof(p));
+ state->create_guid = &state->_create_guid;
+ state->do_durable_reconnect = true;
+ }
- status = smb2_create_blob_add(state->out_context_blobs,
- state->out_context_blobs,
- SMB2_CREATE_TAG_DHNQ,
- blob);
- if (!NT_STATUS_IS_OK(status)) {
- tevent_req_nterror(req, status);
- return tevent_req_post(req, state->ev);
+ if (state->alsi != NULL) {
+ if (state->alsi->data.length != 8) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return;
}
+ state->allocation_size = BVAL(state->alsi->data.data, 0);
}
- if (state->dh2q != NULL && state->op->global->durable &&
- /*
- * For replay operations, we return the dh2q blob
- * in the case of oplocks not based on the state of
- * the open, but on whether it could have been granted
- * for the request data. In the case of leases instead,
- * the state of the open is used...
- */
- (!state->replay_operation ||
- state->in_oplock_level == SMB2_OPLOCK_LEVEL_BATCH ||
- state->in_oplock_level == SMB2_OPLOCK_LEVEL_LEASE))
- {
- uint8_t p[8] = { 0, };
- DATA_BLOB blob = data_blob_const(p, sizeof(p));
- uint32_t durable_v2_response_flags = 0;
+ if (state->twrp != NULL) {
+ NTTIME nttime;
+ time_t t;
+ struct tm *tm;
+ char *tmpname = state->fname;
- SIVAL(p, 0, state->op->global->durable_timeout_msec);
- SIVAL(p, 4, durable_v2_response_flags);
+ if (state->twrp->data.length != 8) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return;
+ }
- status = smb2_create_blob_add(state->out_context_blobs,
- state->out_context_blobs,
- SMB2_CREATE_TAG_DH2Q,
- blob);
- if (!NT_STATUS_IS_OK(status)) {
- tevent_req_nterror(req, status);
- return tevent_req_post(req, state->ev);
+ nttime = BVAL(state->twrp->data.data, 0);
+ t = nt_time_to_unix(nttime);
+ tm = gmtime(&t);
+
+ state->fname = talloc_asprintf(
+ state,
+ "%s\\@GMT-%04u.%02u.%02u-%02u.%02u.%02u",
+ state->fname,
+ tm->tm_year + 1900,
+ tm->tm_mon + 1,
+ tm->tm_mday,
+ tm->tm_hour,
+ tm->tm_min,
+ tm->tm_sec);
+ if (tevent_req_nomem(state->fname, req)) {
+ return;
}
+ TALLOC_FREE(tmpname);
+ /*
+ * Tell filename_create_ucf_flags() this
+ * is an @GMT path.
+ */
+ smb1req->flags2 |= FLAGS2_REPARSE_PATH;
}
if (state->qfid != NULL) {
- uint8_t p[32];
- uint64_t file_index = get_FileIndex(state->result->conn,
- &state->result->fsp_name->st);
- DATA_BLOB blob = data_blob_const(p, sizeof(p));
-
- ZERO_STRUCT(p);
-
- /* From conversations with Microsoft engineers at
- the MS plugfest. The first 8 bytes are the "volume index"
- == inode, the second 8 bytes are the "volume id",
- == dev. This will be updated in the SMB2 doc. */
- SBVAL(p, 0, file_index);
- SIVAL(p, 8, state->result->fsp_name->st.st_ex_dev);/* FileIndexHigh */
-
- status = smb2_create_blob_add(state->out_context_blobs,
- state->out_context_blobs,
- SMB2_CREATE_TAG_QFID,
- blob);
- if (!NT_STATUS_IS_OK(status)) {
- tevent_req_nterror(req, status);
- return tevent_req_post(req, state->ev);
+ if (state->qfid->data.length != 0) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return;
}
}
- if ((state->rqls != NULL) && (state->result->oplock_type == LEASE_OPLOCK)) {
- uint8_t buf[52];
- struct smb2_lease lease;
- size_t lease_len;
+ if (state->rqls != NULL) {
+ ssize_t lease_len = -1;
- lease = state->result->lease->lease;
+ lease_len = smb2_lease_pull(state->rqls->data.data,
+ state->rqls->data.length,
+ &state->lease);
+ if (lease_len == -1) {
+ tevent_req_nterror(
+ req, NT_STATUS_INVALID_PARAMETER);
+ return;
+ }
+ state->lease_ptr = &state->lease;
- lease_len = sizeof(buf);
- if (lease.lease_version == 1) {
- lease_len = 32;
+ if (DEBUGLEVEL >= 10) {
+ DEBUG(10, ("Got lease request size %d\n",
+ (int)lease_len));
+ NDR_PRINT_DEBUG(smb2_lease, state->lease_ptr);
}
- if (!smb2_lease_push(&lease, buf, lease_len)) {
- tevent_req_nterror(
- req, NT_STATUS_INTERNAL_ERROR);
- return tevent_req_post(req, state->ev);
+ if (!smb2_lease_key_valid(&state->lease.lease_key)) {
+ state->lease_ptr = NULL;
+ state->requested_oplock_level = SMB2_OPLOCK_LEVEL_NONE;
}
- status = smb2_create_blob_add(
- state, state->out_context_blobs,
- SMB2_CREATE_TAG_RQLS,
- data_blob_const(buf, lease_len));
- if (!NT_STATUS_IS_OK(status)) {
- tevent_req_nterror(req, status);
- return tevent_req_post(req, state->ev);
+ if ((smb2req->xconn->protocol < PROTOCOL_SMB3_00) &&
+ (state->lease.lease_version != 1))
+ {
+ DEBUG(10, ("v2 lease key only for SMB3\n"));
+ state->lease_ptr = NULL;
+ }
+
+ /*
+ * Replay with a lease is only allowed if the
+ * established open carries a lease with the
+ * same lease key.
+ */
+ if (state->replay_operation) {
+ struct smb2_lease *op_ls =
+ &state->op->compat->lease->lease;
+ int op_oplock = state->op->compat->oplock_type;
+
+ if (map_samba_oplock_levels_to_smb2(op_oplock)
+ != SMB2_OPLOCK_LEVEL_LEASE)
+ {
+ status = NT_STATUS_ACCESS_DENIED;
+ (void)tevent_req_nterror(req, status);
+ return;
+ }
+ if (!smb2_lease_key_equal(&state->lease.lease_key,
+ &op_ls->lease_key))
+ {
+ status = NT_STATUS_ACCESS_DENIED;
+ (void)tevent_req_nterror(req, status);
+ return;
+ }
}
}
- smbd_smb2_create_finish(req);
- return req;
+ return;
}
static void smbd_smb2_create_finish(struct tevent_req *req)
git.samba.org / samba.git / blobdiff