#include "lib/util/tevent_ntstatus.h"
#include "../libcli/security/security.h"
#include "lib/util_ea.h"
+#include "librpc/gen_ndr/ndr_ioctl.h"
struct smb2_hnd {
uint64_t fid_persistent;
}
return NT_STATUS_OK;
}
+
+struct cli_smb2_splice_state {
+ struct tevent_context *ev;
+ struct cli_state *cli;
+ struct smb2_hnd *src_ph;
+ struct smb2_hnd *dst_ph;
+ int (*splice_cb)(off_t n, void *priv);
+ void *priv;
+ off_t written;
+ off_t size;
+ off_t src_offset;
+ off_t dst_offset;
+ bool resized;
+ struct req_resume_key_rsp resume_rsp;
+ struct srv_copychunk_copy cc_copy;
+};
+
+static void cli_splice_copychunk_send(struct cli_smb2_splice_state *state,
+ struct tevent_req *req);
+
+static void cli_splice_copychunk_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct cli_smb2_splice_state *state =
+ tevent_req_data(req,
+ struct cli_smb2_splice_state);
+ struct smbXcli_conn *conn = state->cli->conn;
+ DATA_BLOB out_input_buffer = data_blob_null;
+ DATA_BLOB out_output_buffer = data_blob_null;
+ struct srv_copychunk_rsp cc_copy_rsp;
+ enum ndr_err_code ndr_ret;
+ NTSTATUS status;
+
+ status = smb2cli_ioctl_recv(subreq, state,
+ &out_input_buffer,
+ &out_output_buffer);
+ TALLOC_FREE(subreq);
+ if ((!NT_STATUS_EQUAL(status, NT_STATUS_INVALID_PARAMETER) ||
+ state->resized) && tevent_req_nterror(req, status)) {
+ return;
+ }
+
+ ndr_ret = ndr_pull_struct_blob(&out_output_buffer, state, &cc_copy_rsp,
+ (ndr_pull_flags_fn_t)ndr_pull_srv_copychunk_rsp);
+ if (ndr_ret != NDR_ERR_SUCCESS) {
+ DEBUG(0, ("failed to unmarshall copy chunk rsp\n"));
+ tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
+
+ if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_PARAMETER)) {
+ uint32_t max_chunks = MIN(cc_copy_rsp.chunks_written,
+ cc_copy_rsp.total_bytes_written / cc_copy_rsp.chunk_bytes_written);
+ if ((cc_copy_rsp.chunk_bytes_written > smb2cli_conn_cc_chunk_len(conn) ||
+ max_chunks > smb2cli_conn_cc_max_chunks(conn)) &&
+ tevent_req_nterror(req, status)) {
+ return;
+ }
+
+ state->resized = true;
+ smb2cli_conn_set_cc_chunk_len(conn, cc_copy_rsp.chunk_bytes_written);
+ smb2cli_conn_set_cc_max_chunks(conn, max_chunks);
+ } else {
+ if ((state->src_offset > INT64_MAX - cc_copy_rsp.total_bytes_written) ||
+ (state->dst_offset > INT64_MAX - cc_copy_rsp.total_bytes_written) ||
+ (state->written > INT64_MAX - cc_copy_rsp.total_bytes_written)) {
+ tevent_req_nterror(req, NT_STATUS_FILE_TOO_LARGE);
+ return;
+ }
+ state->src_offset += cc_copy_rsp.total_bytes_written;
+ state->dst_offset += cc_copy_rsp.total_bytes_written;
+ state->written += cc_copy_rsp.total_bytes_written;
+ if (!state->splice_cb(state->written, state->priv)) {
+ tevent_req_nterror(req, NT_STATUS_CANCELLED);
+ return;
+ }
+ }
+
+ cli_splice_copychunk_send(state, req);
+}
+
+static void cli_splice_copychunk_send(struct cli_smb2_splice_state *state,
+ struct tevent_req *req)
+{
+ struct tevent_req *subreq;
+ enum ndr_err_code ndr_ret;
+ struct smbXcli_conn *conn = state->cli->conn;
+ struct srv_copychunk_copy *cc_copy = &state->cc_copy;
+ off_t src_offset = state->src_offset;
+ off_t dst_offset = state->dst_offset;
+ uint32_t req_len = MIN(smb2cli_conn_cc_chunk_len(conn) * smb2cli_conn_cc_max_chunks(conn),
+ state->size - state->written);
+ DATA_BLOB in_input_buffer = data_blob_null;
+ DATA_BLOB in_output_buffer = data_blob_null;
+
+ if (state->size - state->written == 0) {
+ tevent_req_done(req);
+ return;
+ }
+
+ cc_copy->chunk_count = 0;
+ while (req_len) {
+ cc_copy->chunks[cc_copy->chunk_count].source_off = src_offset;
+ cc_copy->chunks[cc_copy->chunk_count].target_off = dst_offset;
+ cc_copy->chunks[cc_copy->chunk_count].length = MIN(req_len,
+ smb2cli_conn_cc_chunk_len(conn));
+ if (req_len < cc_copy->chunks[cc_copy->chunk_count].length) {
+ tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
+ return;
+ }
+ req_len -= cc_copy->chunks[cc_copy->chunk_count].length;
+ if ((src_offset > INT64_MAX - cc_copy->chunks[cc_copy->chunk_count].length) ||
+ (dst_offset > INT64_MAX - cc_copy->chunks[cc_copy->chunk_count].length)) {
+ tevent_req_nterror(req, NT_STATUS_FILE_TOO_LARGE);
+ return;
+ }
+ src_offset += cc_copy->chunks[cc_copy->chunk_count].length;
+ dst_offset += cc_copy->chunks[cc_copy->chunk_count].length;
+ cc_copy->chunk_count++;
+ }
+
+ ndr_ret = ndr_push_struct_blob(&in_input_buffer, state, cc_copy,
+ (ndr_push_flags_fn_t)ndr_push_srv_copychunk_copy);
+ if (ndr_ret != NDR_ERR_SUCCESS) {
+ DEBUG(0, ("failed to marshall copy chunk req\n"));
+ tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
+ return;
+ }
+
+ subreq = smb2cli_ioctl_send(state, state->ev, state->cli->conn,
+ state->cli->timeout,
+ state->cli->smb2.session,
+ state->cli->smb2.tcon,
+ state->dst_ph->fid_persistent, /* in_fid_persistent */
+ state->dst_ph->fid_volatile, /* in_fid_volatile */
+ FSCTL_SRV_COPYCHUNK_WRITE,
+ 0, /* in_max_input_length */
+ &in_input_buffer,
+ 12, /* in_max_output_length */
+ &in_output_buffer,
+ SMB2_IOCTL_FLAG_IS_FSCTL);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq,
+ cli_splice_copychunk_done,
+ req);
+}
+
+static void cli_splice_key_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct cli_smb2_splice_state *state =
+ tevent_req_data(req,
+ struct cli_smb2_splice_state);
+ enum ndr_err_code ndr_ret;
+ NTSTATUS status;
+
+ DATA_BLOB out_input_buffer = data_blob_null;
+ DATA_BLOB out_output_buffer = data_blob_null;
+
+ status = smb2cli_ioctl_recv(subreq, state,
+ &out_input_buffer,
+ &out_output_buffer);
+ TALLOC_FREE(subreq);
+ if (tevent_req_nterror(req, status)) {
+ return;
+ }
+
+ ndr_ret = ndr_pull_struct_blob(&out_output_buffer,
+ state, &state->resume_rsp,
+ (ndr_pull_flags_fn_t)ndr_pull_req_resume_key_rsp);
+ if (ndr_ret != NDR_ERR_SUCCESS) {
+ DEBUG(0, ("failed to unmarshall resume key rsp\n"));
+ tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
+
+ memcpy(&state->cc_copy.source_key,
+ &state->resume_rsp.resume_key,
+ sizeof state->resume_rsp.resume_key);
+
+ cli_splice_copychunk_send(state, req);
+}
+
+struct tevent_req *cli_smb2_splice_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct cli_state *cli,
+ uint16_t src_fnum, uint16_t dst_fnum,
+ off_t size, off_t src_offset, off_t dst_offset,
+ int (*splice_cb)(off_t n, void *priv),
+ void *priv)
+{
+ struct tevent_req *req;
+ struct tevent_req *subreq;
+ struct cli_smb2_splice_state *state;
+ NTSTATUS status;
+ DATA_BLOB in_input_buffer = data_blob_null;
+ DATA_BLOB in_output_buffer = data_blob_null;
+
+ req = tevent_req_create(mem_ctx, &state, struct cli_smb2_splice_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ state->cli = cli;
+ state->ev = ev;
+ state->splice_cb = splice_cb;
+ state->priv = priv;
+ state->size = size;
+ state->written = 0;
+ state->src_offset = src_offset;
+ state->dst_offset = dst_offset;
+ state->cc_copy.chunks = talloc_array(state,
+ struct srv_copychunk,
+ smb2cli_conn_cc_max_chunks(cli->conn));
+ if (state->cc_copy.chunks == NULL) {
+ return NULL;
+ }
+
+ status = map_fnum_to_smb2_handle(cli, src_fnum, &state->src_ph);
+ if (tevent_req_nterror(req, status))
+ return tevent_req_post(req, ev);
+
+ status = map_fnum_to_smb2_handle(cli, dst_fnum, &state->dst_ph);
+ if (tevent_req_nterror(req, status))
+ return tevent_req_post(req, ev);
+
+ subreq = smb2cli_ioctl_send(state, ev, cli->conn,
+ cli->timeout,
+ cli->smb2.session,
+ cli->smb2.tcon,
+ state->src_ph->fid_persistent, /* in_fid_persistent */
+ state->src_ph->fid_volatile, /* in_fid_volatile */
+ FSCTL_SRV_REQUEST_RESUME_KEY,
+ 0, /* in_max_input_length */
+ &in_input_buffer,
+ 32, /* in_max_output_length */
+ &in_output_buffer,
+ SMB2_IOCTL_FLAG_IS_FSCTL);
+ if (tevent_req_nomem(subreq, req)) {
+ return NULL;
+ }
+ tevent_req_set_callback(subreq,
+ cli_splice_key_done,
+ req);
+
+ return req;
+}
+
+NTSTATUS cli_smb2_splice_recv(struct tevent_req *req, off_t *written)
+{
+ struct cli_smb2_splice_state *state = tevent_req_data(
+ req, struct cli_smb2_splice_state);
+ NTSTATUS status;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ tevent_req_received(req);
+ return status;
+ }
+ if (written != NULL) {
+ *written = state->written;
+ }
+ tevent_req_received(req);
+ return NT_STATUS_OK;
+}
git.samba.org / samba.git / blobdiff