#include "smbd/smbd.h"
#include "smbd/globals.h"
#include "../libcli/smb/smb_common.h"
+#include "../lib/util/tevent_ntstatus.h"
+#include "libcli/security/security.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_SMB2
static struct tevent_req *smbd_smb2_flush_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct smbd_smb2_request *smb2req,
- uint64_t in_file_id_volatile);
+ struct files_struct *fsp);
static NTSTATUS smbd_smb2_flush_recv(struct tevent_req *req);
static void smbd_smb2_request_flush_done(struct tevent_req *subreq);
NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req)
{
- const uint8_t *inhdr;
+ NTSTATUS status;
const uint8_t *inbody;
- int i = req->current_idx;
- size_t expected_body_size = 0x18;
- size_t body_size;
uint64_t in_file_id_persistent;
uint64_t in_file_id_volatile;
+ struct files_struct *in_fsp;
struct tevent_req *subreq;
- inhdr = (const uint8_t *)req->in.vector[i+0].iov_base;
- if (req->in.vector[i+1].iov_len != (expected_body_size & 0xFFFFFFFE)) {
- return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
- }
-
- inbody = (const uint8_t *)req->in.vector[i+1].iov_base;
-
- body_size = SVAL(inbody, 0x00);
- if (body_size != expected_body_size) {
- return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
+ status = smbd_smb2_request_verify_sizes(req, 0x18);
+ if (!NT_STATUS_IS_OK(status)) {
+ return smbd_smb2_request_error(req, status);
}
+ inbody = SMBD_SMB2_IN_BODY_PTR(req);
in_file_id_persistent = BVAL(inbody, 0x08);
in_file_id_volatile = BVAL(inbody, 0x10);
- if (req->compat_chain_fsp) {
- /* skip check */
- } else if (in_file_id_persistent != in_file_id_volatile) {
+ in_fsp = file_fsp_smb2(req, in_file_id_persistent, in_file_id_volatile);
+ if (in_fsp == NULL) {
return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
}
- subreq = smbd_smb2_flush_send(req,
- req->sconn->smb2.event_ctx,
- req,
- in_file_id_volatile);
+ subreq = smbd_smb2_flush_send(req, req->sconn->ev_ctx,
+ req, in_fsp);
if (subreq == NULL) {
return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
}
tevent_req_set_callback(subreq, smbd_smb2_request_flush_done, req);
- return smbd_smb2_request_pending_queue(req, subreq);
+ return smbd_smb2_request_pending_queue(req, subreq, 500);
}
static void smbd_smb2_request_flush_done(struct tevent_req *subreq)
if (!NT_STATUS_IS_OK(status)) {
error = smbd_smb2_request_error(req, status);
if (!NT_STATUS_IS_OK(error)) {
- smbd_server_connection_terminate(req->sconn,
+ smbd_server_connection_terminate(req->xconn,
nt_errstr(error));
return;
}
return;
}
- outbody = data_blob_talloc(req->out.vector, NULL, 0x10);
+ outbody = smbd_smb2_generate_outbody(req, 0x04);
if (outbody.data == NULL) {
error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
if (!NT_STATUS_IS_OK(error)) {
- smbd_server_connection_terminate(req->sconn,
+ smbd_server_connection_terminate(req->xconn,
nt_errstr(error));
return;
}
error = smbd_smb2_request_done(req, outbody, NULL);
if (!NT_STATUS_IS_OK(error)) {
- smbd_server_connection_terminate(req->sconn,
+ smbd_server_connection_terminate(req->xconn,
nt_errstr(error));
return;
}
struct smbd_smb2_flush_state {
struct smbd_smb2_request *smb2req;
+ struct files_struct *fsp;
};
+static void smbd_smb2_flush_done(struct tevent_req *subreq);
+
static struct tevent_req *smbd_smb2_flush_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct smbd_smb2_request *smb2req,
- uint64_t in_file_id_volatile)
+ struct files_struct *fsp)
{
struct tevent_req *req;
+ struct tevent_req *subreq;
struct smbd_smb2_flush_state *state;
- NTSTATUS status;
struct smb_request *smbreq;
- files_struct *fsp;
+ bool is_compound = false;
+ bool is_last_in_compound = false;
+ NTSTATUS status;
req = tevent_req_create(mem_ctx, &state,
struct smbd_smb2_flush_state);
return NULL;
}
state->smb2req = smb2req;
+ state->fsp = fsp;
- DEBUG(10,("smbd_smb2_flush: file_id[0x%016llX]\n",
- (unsigned long long)in_file_id_volatile));
+ DEBUG(10,("smbd_smb2_flush: %s - %s\n",
+ fsp_str_dbg(fsp), fsp_fnum_dbg(fsp)));
- smbreq = smbd_smb2_fake_smb_request(smb2req);
+ smbreq = smbd_smb2_fake_smb_request(smb2req, fsp);
if (tevent_req_nomem(smbreq, req)) {
return tevent_req_post(req, ev);
}
return tevent_req_post(req, ev);
}
- fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
- if (fsp == NULL) {
- tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
- return tevent_req_post(req, ev);
+ status = check_any_access_fsp(fsp, FILE_WRITE_DATA|FILE_APPEND_DATA);
+ if (!NT_STATUS_IS_OK(status)) {
+ bool allow_dir_flush = false;
+ uint32_t flush_access = FILE_ADD_FILE | FILE_ADD_SUBDIRECTORY;
+
+ if (!fsp->fsp_flags.is_directory) {
+ tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
+ return tevent_req_post(req, ev);
+ }
+
+ /*
+ * Directories are not writable in the conventional
+ * sense, but if opened with *either*
+ * FILE_ADD_FILE or FILE_ADD_SUBDIRECTORY
+ * they can be flushed.
+ */
+
+ status = check_any_access_fsp(fsp, flush_access);
+ if (NT_STATUS_IS_OK(status)) {
+ allow_dir_flush = true;
+ }
+
+ if (allow_dir_flush == false) {
+ tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
+ return tevent_req_post(req, ev);
+ }
}
- if (smbreq->conn != fsp->conn) {
- tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
+
+ if (fsp_get_io_fd(fsp) == -1) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_HANDLE);
return tevent_req_post(req, ev);
}
- if (smb2req->session->vuid != fsp->vuid) {
- tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
+
+ if (!lp_strict_sync(SNUM(smbreq->conn))) {
+ /*
+ * No strict sync. Don't really do
+ * anything here.
+ */
+ tevent_req_done(req);
return tevent_req_post(req, ev);
}
- if (!CHECK_WRITE(fsp)) {
- tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
+ subreq = SMB_VFS_FSYNC_SEND(state, ev, fsp);
+ if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
- status = sync_file(smbreq->conn, fsp, true);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(5,("smbd_smb2_flush: sync_file for %s returned %s\n",
- fsp_str_dbg(fsp), nt_errstr(status)));
- tevent_req_nterror(req, status);
+ tevent_req_set_callback(subreq, smbd_smb2_flush_done, req);
+
+ is_compound = smbd_smb2_is_compound(smb2req);
+ is_last_in_compound = smbd_smb2_is_last_in_compound(smb2req);
+
+ if (is_compound && !is_last_in_compound) {
+ /*
+ * Can't go async if we're not the
+ * last request in a compound request.
+ * Cause this request to complete synchronously.
+ */
+ smb2_request_set_async_internal(state->smb2req, true);
+ }
+
+ /* Ensure any close request knows about this outstanding IO. */
+ if (!aio_add_req_to_fsp(fsp, req)) {
+ tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
return tevent_req_post(req, ev);
}
+ return req;
+
+}
+
+static void smbd_smb2_flush_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct smbd_smb2_flush_state *state = tevent_req_data(
+ req, struct smbd_smb2_flush_state);
+ int ret;
+ struct vfs_aio_state vfs_aio_state;
+
+ ret = SMB_VFS_FSYNC_RECV(subreq, &vfs_aio_state);
+ TALLOC_FREE(subreq);
+ if (ret == -1) {
+ tevent_req_nterror(req, map_nt_error_from_unix(vfs_aio_state.error));
+ return;
+ }
+ if (state->fsp->fsp_flags.modified) {
+ trigger_write_time_update_immediate(state->fsp);
+ }
tevent_req_done(req);
- return tevent_req_post(req, ev);
}
static NTSTATUS smbd_smb2_flush_recv(struct tevent_req *req)
git.samba.org / samba.git / blobdiff