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40e2fdfc6b
tevent_req_received() called below takes care of this Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
903 lines
23 KiB
C
903 lines
23 KiB
C
/*
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Unix SMB/CIFS implementation.
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client transaction calls
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Copyright (C) Andrew Tridgell 1994-1998
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "system/network.h"
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#include "../lib/util/tevent_ntstatus.h"
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#include "../libcli/smb/smb_common.h"
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#include "../libcli/smb/smbXcli_base.h"
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struct trans_recvblob {
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uint8_t *data;
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uint32_t max, total, received;
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};
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struct smb1cli_trans_state {
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struct smbXcli_conn *conn;
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struct tevent_context *ev;
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uint8_t cmd;
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uint8_t additional_flags;
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uint8_t clear_flags;
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uint16_t additional_flags2;
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uint16_t clear_flags2;
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uint32_t timeout_msec;
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uint16_t mid;
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uint32_t pid;
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struct smbXcli_tcon *tcon;
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struct smbXcli_session *session;
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const char *pipe_name;
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uint8_t *pipe_name_conv;
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size_t pipe_name_conv_len;
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uint16_t fid;
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uint16_t function;
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int flags;
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uint16_t *setup;
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uint8_t num_setup, max_setup;
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uint8_t *param;
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uint32_t num_param, param_sent;
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uint8_t *data;
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uint32_t num_data, data_sent;
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uint8_t num_rsetup;
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uint16_t *rsetup;
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struct trans_recvblob rparam;
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struct trans_recvblob rdata;
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uint16_t recv_flags2;
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struct iovec iov[6];
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uint8_t pad[4];
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uint8_t zero_pad[4];
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uint16_t vwv[32];
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NTSTATUS status;
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struct tevent_req *primary_subreq;
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};
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static void smb1cli_trans_cleanup_primary(struct smb1cli_trans_state *state)
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{
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if (state->primary_subreq) {
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smb1cli_req_set_mid(state->primary_subreq, 0);
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smbXcli_req_unset_pending(state->primary_subreq);
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TALLOC_FREE(state->primary_subreq);
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}
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}
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static int smb1cli_trans_state_destructor(struct smb1cli_trans_state *state)
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{
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smb1cli_trans_cleanup_primary(state);
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return 0;
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}
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static NTSTATUS smb1cli_pull_trans(uint8_t *inhdr,
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uint8_t wct,
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uint16_t *vwv,
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uint32_t vwv_ofs,
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uint32_t num_bytes,
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uint8_t *bytes,
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uint32_t bytes_ofs,
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uint8_t smb_cmd, bool expect_first_reply,
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uint8_t *pnum_setup, uint16_t **psetup,
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uint32_t *ptotal_param, uint32_t *pnum_param,
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uint32_t *pparam_disp, uint8_t **pparam,
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uint32_t *ptotal_data, uint32_t *pnum_data,
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uint32_t *pdata_disp, uint8_t **pdata)
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{
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uint32_t param_ofs, data_ofs;
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uint8_t expected_num_setup;
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uint32_t max_bytes = UINT32_MAX - bytes_ofs;
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uint32_t bytes_end;
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if (num_bytes > max_bytes) {
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return NT_STATUS_INVALID_NETWORK_RESPONSE;
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}
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bytes_end = bytes_ofs + num_bytes;
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if (expect_first_reply) {
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if ((wct != 0) || (num_bytes != 0)) {
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return NT_STATUS_INVALID_NETWORK_RESPONSE;
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}
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return NT_STATUS_OK;
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}
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switch (smb_cmd) {
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case SMBtrans:
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case SMBtrans2:
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if (wct < 10) {
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return NT_STATUS_INVALID_NETWORK_RESPONSE;
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}
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expected_num_setup = wct - 10;
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*ptotal_param = SVAL(vwv + 0, 0);
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*ptotal_data = SVAL(vwv + 1, 0);
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*pnum_param = SVAL(vwv + 3, 0);
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param_ofs = SVAL(vwv + 4, 0);
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*pparam_disp = SVAL(vwv + 5, 0);
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*pnum_data = SVAL(vwv + 6, 0);
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data_ofs = SVAL(vwv + 7, 0);
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*pdata_disp = SVAL(vwv + 8, 0);
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*pnum_setup = CVAL(vwv + 9, 0);
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if (expected_num_setup < (*pnum_setup)) {
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return NT_STATUS_INVALID_NETWORK_RESPONSE;
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}
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*psetup = vwv + 10;
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break;
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case SMBnttrans:
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if (wct < 18) {
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return NT_STATUS_INVALID_NETWORK_RESPONSE;
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}
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expected_num_setup = wct - 18;
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*ptotal_param = IVAL(vwv, 3);
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*ptotal_data = IVAL(vwv, 7);
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*pnum_param = IVAL(vwv, 11);
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param_ofs = IVAL(vwv, 15);
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*pparam_disp = IVAL(vwv, 19);
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*pnum_data = IVAL(vwv, 23);
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data_ofs = IVAL(vwv, 27);
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*pdata_disp = IVAL(vwv, 31);
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*pnum_setup = CVAL(vwv, 35);
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if (expected_num_setup < (*pnum_setup)) {
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return NT_STATUS_INVALID_NETWORK_RESPONSE;
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}
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*psetup = vwv + 18;
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break;
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default:
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return NT_STATUS_INTERNAL_ERROR;
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}
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/*
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* Check for buffer overflows. data_ofs needs to be checked against
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* the incoming buffer length, data_disp against the total
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* length. Likewise for param_ofs/param_disp.
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*/
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if (smb_buffer_oob(bytes_end, param_ofs, *pnum_param)
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|| smb_buffer_oob(*ptotal_param, *pparam_disp, *pnum_param)
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|| smb_buffer_oob(bytes_end, data_ofs, *pnum_data)
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|| smb_buffer_oob(*ptotal_data, *pdata_disp, *pnum_data)) {
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return NT_STATUS_INVALID_NETWORK_RESPONSE;
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}
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*pparam = (uint8_t *)inhdr + param_ofs;
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*pdata = (uint8_t *)inhdr + data_ofs;
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return NT_STATUS_OK;
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}
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static NTSTATUS smb1cli_trans_pull_blob(TALLOC_CTX *mem_ctx,
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struct trans_recvblob *blob,
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uint32_t total, uint32_t thistime,
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uint8_t *buf, uint32_t displacement)
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{
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if (blob->data == NULL) {
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if (total > blob->max) {
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return NT_STATUS_INVALID_NETWORK_RESPONSE;
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}
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blob->total = total;
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blob->data = talloc_array(mem_ctx, uint8_t, total);
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if (blob->data == NULL) {
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return NT_STATUS_NO_MEMORY;
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}
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}
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if (total > blob->total) {
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return NT_STATUS_INVALID_NETWORK_RESPONSE;
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}
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if (thistime) {
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memcpy(blob->data + displacement, buf, thistime);
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blob->received += thistime;
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}
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return NT_STATUS_OK;
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}
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static void smb1cli_trans_format(struct smb1cli_trans_state *state,
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uint8_t *pwct,
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int *piov_count)
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{
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uint8_t wct = 0;
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struct iovec *iov = state->iov;
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uint8_t *pad = state->pad;
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uint16_t *vwv = state->vwv;
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uint32_t param_offset;
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uint32_t this_param = 0;
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uint32_t param_pad;
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uint32_t data_offset;
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uint32_t this_data = 0;
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uint32_t data_pad;
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uint32_t useable_space;
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uint8_t cmd;
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uint32_t max_trans = smb1cli_conn_max_xmit(state->conn);
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cmd = state->cmd;
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if ((state->param_sent != 0) || (state->data_sent != 0)) {
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/* The secondary commands are one after the primary ones */
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cmd += 1;
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}
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param_offset = MIN_SMB_SIZE;
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switch (cmd) {
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case SMBtrans:
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if (smbXcli_conn_use_unicode(state->conn)) {
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pad[0] = 0;
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iov[0].iov_base = (void *)pad;
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iov[0].iov_len = 1;
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param_offset += 1;
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iov += 1;
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}
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iov[0].iov_base = (void *)state->pipe_name_conv;
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iov[0].iov_len = state->pipe_name_conv_len;
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wct = 14 + state->num_setup;
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param_offset += iov[0].iov_len;
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iov += 1;
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break;
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case SMBtrans2:
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pad[0] = 0;
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pad[1] = 'D'; /* Copy this from "old" 3.0 behaviour */
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pad[2] = ' ';
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iov[0].iov_base = (void *)pad;
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iov[0].iov_len = 3;
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wct = 14 + state->num_setup;
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param_offset += 3;
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iov += 1;
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break;
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case SMBtranss:
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wct = 8;
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break;
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case SMBtranss2:
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wct = 9;
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break;
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case SMBnttrans:
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wct = 19 + state->num_setup;
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break;
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case SMBnttranss:
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wct = 18;
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break;
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}
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param_offset += wct * sizeof(uint16_t);
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useable_space = max_trans - param_offset;
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param_pad = param_offset % 4;
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if (param_pad > 0) {
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param_pad = MIN(param_pad, useable_space);
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iov[0].iov_base = (void *)state->zero_pad;
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iov[0].iov_len = param_pad;
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iov += 1;
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param_offset += param_pad;
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}
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useable_space = max_trans - param_offset;
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if (state->param_sent < state->num_param) {
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this_param = MIN(state->num_param - state->param_sent,
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useable_space);
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iov[0].iov_base = (void *)(state->param + state->param_sent);
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iov[0].iov_len = this_param;
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iov += 1;
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}
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data_offset = param_offset + this_param;
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useable_space = max_trans - data_offset;
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data_pad = data_offset % 4;
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if (data_pad > 0) {
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data_pad = MIN(data_pad, useable_space);
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iov[0].iov_base = (void *)state->zero_pad;
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iov[0].iov_len = data_pad;
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iov += 1;
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data_offset += data_pad;
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}
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useable_space = max_trans - data_offset;
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if (state->data_sent < state->num_data) {
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this_data = MIN(state->num_data - state->data_sent,
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useable_space);
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iov[0].iov_base = (void *)(state->data + state->data_sent);
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iov[0].iov_len = this_data;
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iov += 1;
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}
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DEBUG(10, ("num_setup=%u, max_setup=%u, "
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"param_total=%u, this_param=%u, max_param=%u, "
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"data_total=%u, this_data=%u, max_data=%u, "
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"param_offset=%u, param_pad=%u, param_disp=%u, "
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"data_offset=%u, data_pad=%u, data_disp=%u\n",
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(unsigned)state->num_setup, (unsigned)state->max_setup,
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(unsigned)state->num_param, (unsigned)this_param,
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(unsigned)state->rparam.max,
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(unsigned)state->num_data, (unsigned)this_data,
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(unsigned)state->rdata.max,
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(unsigned)param_offset, (unsigned)param_pad,
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(unsigned)state->param_sent,
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(unsigned)data_offset, (unsigned)data_pad,
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(unsigned)state->data_sent));
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switch (cmd) {
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case SMBtrans:
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case SMBtrans2:
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SSVAL(vwv + 0, 0, state->num_param);
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SSVAL(vwv + 1, 0, state->num_data);
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SSVAL(vwv + 2, 0, state->rparam.max);
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SSVAL(vwv + 3, 0, state->rdata.max);
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SCVAL(vwv + 4, 0, state->max_setup);
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SCVAL(vwv + 4, 1, 0); /* reserved */
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SSVAL(vwv + 5, 0, state->flags);
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SIVAL(vwv + 6, 0, 0); /* timeout */
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SSVAL(vwv + 8, 0, 0); /* reserved */
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SSVAL(vwv + 9, 0, this_param);
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SSVAL(vwv +10, 0, param_offset);
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SSVAL(vwv +11, 0, this_data);
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SSVAL(vwv +12, 0, data_offset);
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SCVAL(vwv +13, 0, state->num_setup);
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SCVAL(vwv +13, 1, 0); /* reserved */
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if (state->num_setup > 0) {
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memcpy(vwv + 14, state->setup,
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sizeof(uint16_t) * state->num_setup);
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}
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break;
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case SMBtranss:
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case SMBtranss2:
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SSVAL(vwv + 0, 0, state->num_param);
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SSVAL(vwv + 1, 0, state->num_data);
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SSVAL(vwv + 2, 0, this_param);
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SSVAL(vwv + 3, 0, param_offset);
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SSVAL(vwv + 4, 0, state->param_sent);
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SSVAL(vwv + 5, 0, this_data);
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SSVAL(vwv + 6, 0, data_offset);
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SSVAL(vwv + 7, 0, state->data_sent);
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if (cmd == SMBtranss2) {
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SSVAL(vwv + 8, 0, state->fid);
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}
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break;
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case SMBnttrans:
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SCVAL(vwv + 0, 0, state->max_setup);
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SSVAL(vwv + 0, 1, 0); /* reserved */
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SIVAL(vwv + 1, 1, state->num_param);
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SIVAL(vwv + 3, 1, state->num_data);
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SIVAL(vwv + 5, 1, state->rparam.max);
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SIVAL(vwv + 7, 1, state->rdata.max);
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SIVAL(vwv + 9, 1, this_param);
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SIVAL(vwv +11, 1, param_offset);
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SIVAL(vwv +13, 1, this_data);
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SIVAL(vwv +15, 1, data_offset);
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SCVAL(vwv +17, 1, state->num_setup);
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SSVAL(vwv +18, 0, state->function);
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memcpy(vwv + 19, state->setup,
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sizeof(uint16_t) * state->num_setup);
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break;
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case SMBnttranss:
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SSVAL(vwv + 0, 0, 0); /* reserved */
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SCVAL(vwv + 1, 0, 0); /* reserved */
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SIVAL(vwv + 1, 1, state->num_param);
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SIVAL(vwv + 3, 1, state->num_data);
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SIVAL(vwv + 5, 1, this_param);
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SIVAL(vwv + 7, 1, param_offset);
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SIVAL(vwv + 9, 1, state->param_sent);
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SIVAL(vwv +11, 1, this_data);
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SIVAL(vwv +13, 1, data_offset);
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SIVAL(vwv +15, 1, state->data_sent);
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SCVAL(vwv +17, 1, 0); /* reserved */
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break;
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}
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state->param_sent += this_param;
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state->data_sent += this_data;
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*pwct = wct;
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*piov_count = iov - state->iov;
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}
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static bool smb1cli_trans_cancel(struct tevent_req *req);
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static void smb1cli_trans_done(struct tevent_req *subreq);
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struct tevent_req *smb1cli_trans_send(
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TALLOC_CTX *mem_ctx, struct tevent_context *ev,
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struct smbXcli_conn *conn, uint8_t cmd,
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uint8_t additional_flags, uint8_t clear_flags,
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uint16_t additional_flags2, uint16_t clear_flags2,
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uint32_t timeout_msec,
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uint32_t pid,
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struct smbXcli_tcon *tcon,
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struct smbXcli_session *session,
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const char *pipe_name, uint16_t fid, uint16_t function, int flags,
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uint16_t *setup, uint8_t num_setup, uint8_t max_setup,
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uint8_t *param, uint32_t num_param, uint32_t max_param,
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uint8_t *data, uint32_t num_data, uint32_t max_data)
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{
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struct tevent_req *req, *subreq;
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struct smb1cli_trans_state *state;
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int iov_count;
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uint8_t wct;
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NTSTATUS status;
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charset_t charset;
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req = tevent_req_create(mem_ctx, &state,
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struct smb1cli_trans_state);
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if (req == NULL) {
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return NULL;
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}
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if ((cmd == SMBtrans) || (cmd == SMBtrans2)) {
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if ((num_param > 0xffff) || (max_param > 0xffff)
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|| (num_data > 0xffff) || (max_data > 0xffff)) {
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DEBUG(3, ("Attempt to send invalid trans2 request "
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"(setup %u, params %u/%u, data %u/%u)\n",
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(unsigned)num_setup,
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(unsigned)num_param, (unsigned)max_param,
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(unsigned)num_data, (unsigned)max_data));
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tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
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return tevent_req_post(req, ev);
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}
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}
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/*
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* The largest wct will be for nttrans (19+num_setup). Make sure we
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* don't overflow state->vwv in smb1cli_trans_format.
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*/
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|
|
if ((num_setup + 19) > ARRAY_SIZE(state->vwv)) {
|
|
tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
state->conn = conn;
|
|
state->ev = ev;
|
|
state->cmd = cmd;
|
|
state->additional_flags = additional_flags;
|
|
state->clear_flags = clear_flags;
|
|
state->additional_flags2 = additional_flags2;
|
|
state->clear_flags2 = clear_flags2;
|
|
state->timeout_msec = timeout_msec;
|
|
state->flags = flags;
|
|
state->num_rsetup = 0;
|
|
state->rsetup = NULL;
|
|
state->pid = pid;
|
|
state->tcon = tcon;
|
|
state->session = session;
|
|
ZERO_STRUCT(state->rparam);
|
|
ZERO_STRUCT(state->rdata);
|
|
|
|
if (smbXcli_conn_use_unicode(conn)) {
|
|
charset = CH_UTF16LE;
|
|
} else {
|
|
charset = CH_DOS;
|
|
}
|
|
|
|
if ((pipe_name != NULL)
|
|
&& (!convert_string_talloc(state, CH_UNIX, charset,
|
|
pipe_name, strlen(pipe_name) + 1,
|
|
&state->pipe_name_conv,
|
|
&state->pipe_name_conv_len))) {
|
|
tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
state->fid = fid; /* trans2 */
|
|
state->function = function; /* nttrans */
|
|
|
|
state->setup = setup;
|
|
state->num_setup = num_setup;
|
|
state->max_setup = max_setup;
|
|
|
|
state->param = param;
|
|
state->num_param = num_param;
|
|
state->param_sent = 0;
|
|
state->rparam.max = max_param;
|
|
|
|
state->data = data;
|
|
state->num_data = num_data;
|
|
state->data_sent = 0;
|
|
state->rdata.max = max_data;
|
|
|
|
smb1cli_trans_format(state, &wct, &iov_count);
|
|
|
|
subreq = smb1cli_req_create(state, ev, conn, cmd,
|
|
state->additional_flags,
|
|
state->clear_flags,
|
|
state->additional_flags2,
|
|
state->clear_flags2,
|
|
state->timeout_msec,
|
|
state->pid,
|
|
state->tcon,
|
|
state->session,
|
|
wct, state->vwv,
|
|
iov_count, state->iov);
|
|
if (tevent_req_nomem(subreq, req)) {
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
status = smb1cli_req_chain_submit(&subreq, 1);
|
|
if (tevent_req_nterror(req, status)) {
|
|
return tevent_req_post(req, state->ev);
|
|
}
|
|
tevent_req_set_callback(subreq, smb1cli_trans_done, req);
|
|
|
|
/*
|
|
* Now get the MID of the primary request
|
|
* and mark it as persistent. This means
|
|
* we will able to send and receive multiple
|
|
* SMB pdus using this MID in both directions
|
|
* (including correct SMB signing).
|
|
*/
|
|
state->mid = smb1cli_req_mid(subreq);
|
|
smb1cli_req_set_mid(subreq, state->mid);
|
|
state->primary_subreq = subreq;
|
|
talloc_set_destructor(state, smb1cli_trans_state_destructor);
|
|
|
|
tevent_req_set_cancel_fn(req, smb1cli_trans_cancel);
|
|
|
|
return req;
|
|
}
|
|
|
|
static bool smb1cli_trans_cancel(struct tevent_req *req)
|
|
{
|
|
struct smb1cli_trans_state *state =
|
|
tevent_req_data(req,
|
|
struct smb1cli_trans_state);
|
|
|
|
if (state->primary_subreq == NULL) {
|
|
return false;
|
|
}
|
|
|
|
return tevent_req_cancel(state->primary_subreq);
|
|
}
|
|
|
|
static void smb1cli_trans_done2(struct tevent_req *subreq);
|
|
|
|
static void smb1cli_trans_done(struct tevent_req *subreq)
|
|
{
|
|
struct tevent_req *req =
|
|
tevent_req_callback_data(subreq,
|
|
struct tevent_req);
|
|
struct smb1cli_trans_state *state =
|
|
tevent_req_data(req,
|
|
struct smb1cli_trans_state);
|
|
NTSTATUS status;
|
|
bool sent_all;
|
|
struct iovec *recv_iov = NULL;
|
|
uint8_t *inhdr;
|
|
uint8_t wct;
|
|
uint16_t *vwv;
|
|
uint32_t vwv_ofs;
|
|
uint32_t num_bytes;
|
|
uint8_t *bytes;
|
|
uint32_t bytes_ofs;
|
|
uint8_t num_setup = 0;
|
|
uint16_t *setup = NULL;
|
|
uint32_t total_param = 0;
|
|
uint32_t num_param = 0;
|
|
uint32_t param_disp = 0;
|
|
uint32_t total_data = 0;
|
|
uint32_t num_data = 0;
|
|
uint32_t data_disp = 0;
|
|
uint8_t *param = NULL;
|
|
uint8_t *data = NULL;
|
|
|
|
status = smb1cli_req_recv(subreq, state,
|
|
&recv_iov,
|
|
&inhdr,
|
|
&wct,
|
|
&vwv,
|
|
&vwv_ofs,
|
|
&num_bytes,
|
|
&bytes,
|
|
&bytes_ofs,
|
|
NULL, /* pinbuf */
|
|
NULL, 0); /* expected */
|
|
/*
|
|
* Do not TALLOC_FREE(subreq) here, we might receive more than
|
|
* one response for the same mid.
|
|
*/
|
|
|
|
/*
|
|
* We can receive something like STATUS_MORE_ENTRIES, so don't use
|
|
* !NT_STATUS_IS_OK(status) here.
|
|
*/
|
|
|
|
if (NT_STATUS_IS_ERR(status)) {
|
|
goto fail;
|
|
}
|
|
|
|
if (recv_iov == NULL) {
|
|
status = NT_STATUS_INVALID_NETWORK_RESPONSE;
|
|
goto fail;
|
|
}
|
|
state->status = status;
|
|
|
|
sent_all = ((state->param_sent == state->num_param)
|
|
&& (state->data_sent == state->num_data));
|
|
|
|
status = smb1cli_pull_trans(
|
|
inhdr, wct, vwv, vwv_ofs,
|
|
num_bytes, bytes, bytes_ofs,
|
|
state->cmd, !sent_all, &num_setup, &setup,
|
|
&total_param, &num_param, ¶m_disp, ¶m,
|
|
&total_data, &num_data, &data_disp, &data);
|
|
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
goto fail;
|
|
}
|
|
|
|
if (!sent_all) {
|
|
int iov_count;
|
|
struct tevent_req *subreq2;
|
|
|
|
smb1cli_trans_format(state, &wct, &iov_count);
|
|
|
|
subreq2 = smb1cli_req_create(state, state->ev, state->conn,
|
|
state->cmd + 1,
|
|
state->additional_flags,
|
|
state->clear_flags,
|
|
state->additional_flags2,
|
|
state->clear_flags2,
|
|
state->timeout_msec,
|
|
state->pid,
|
|
state->tcon,
|
|
state->session,
|
|
wct, state->vwv,
|
|
iov_count, state->iov);
|
|
if (tevent_req_nomem(subreq2, req)) {
|
|
return;
|
|
}
|
|
smb1cli_req_set_mid(subreq2, state->mid);
|
|
|
|
status = smb1cli_req_chain_submit(&subreq2, 1);
|
|
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
goto fail;
|
|
}
|
|
tevent_req_set_callback(subreq2, smb1cli_trans_done2, req);
|
|
|
|
return;
|
|
}
|
|
|
|
status = smb1cli_trans_pull_blob(
|
|
state, &state->rparam, total_param, num_param, param,
|
|
param_disp);
|
|
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
DEBUG(10, ("Pulling params failed: %s\n", nt_errstr(status)));
|
|
goto fail;
|
|
}
|
|
|
|
status = smb1cli_trans_pull_blob(
|
|
state, &state->rdata, total_data, num_data, data,
|
|
data_disp);
|
|
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
DEBUG(10, ("Pulling data failed: %s\n", nt_errstr(status)));
|
|
goto fail;
|
|
}
|
|
|
|
if ((state->rparam.total == state->rparam.received)
|
|
&& (state->rdata.total == state->rdata.received)) {
|
|
state->recv_flags2 = SVAL(inhdr, HDR_FLG2);
|
|
smb1cli_trans_cleanup_primary(state);
|
|
tevent_req_done(req);
|
|
return;
|
|
}
|
|
|
|
TALLOC_FREE(recv_iov);
|
|
|
|
return;
|
|
|
|
fail:
|
|
smb1cli_trans_cleanup_primary(state);
|
|
tevent_req_nterror(req, status);
|
|
}
|
|
|
|
static void smb1cli_trans_done2(struct tevent_req *subreq2)
|
|
{
|
|
struct tevent_req *req =
|
|
tevent_req_callback_data(subreq2,
|
|
struct tevent_req);
|
|
struct smb1cli_trans_state *state =
|
|
tevent_req_data(req,
|
|
struct smb1cli_trans_state);
|
|
NTSTATUS status;
|
|
bool sent_all;
|
|
uint32_t seqnum;
|
|
|
|
/*
|
|
* First backup the seqnum of the secondary request
|
|
* and attach it to the primary request.
|
|
*/
|
|
seqnum = smb1cli_req_seqnum(subreq2);
|
|
smb1cli_req_set_seqnum(state->primary_subreq, seqnum);
|
|
|
|
/* This was a one way request */
|
|
status = smb1cli_req_recv(subreq2, state,
|
|
NULL, /* recv_iov */
|
|
NULL, /* phdr */
|
|
NULL, /* pwct */
|
|
NULL, /* pvwv */
|
|
NULL, /* pvwv_offset */
|
|
NULL, /* pnum_bytes */
|
|
NULL, /* pbytes */
|
|
NULL, /* pbytes_offset */
|
|
NULL, /* pinbuf */
|
|
NULL, 0); /* expected */
|
|
TALLOC_FREE(subreq2);
|
|
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
goto fail;
|
|
}
|
|
|
|
sent_all = ((state->param_sent == state->num_param)
|
|
&& (state->data_sent == state->num_data));
|
|
|
|
if (!sent_all) {
|
|
uint8_t wct;
|
|
int iov_count;
|
|
|
|
smb1cli_trans_format(state, &wct, &iov_count);
|
|
|
|
subreq2 = smb1cli_req_create(state, state->ev, state->conn,
|
|
state->cmd + 1,
|
|
state->additional_flags,
|
|
state->clear_flags,
|
|
state->additional_flags2,
|
|
state->clear_flags2,
|
|
state->timeout_msec,
|
|
state->pid,
|
|
state->tcon,
|
|
state->session,
|
|
wct, state->vwv,
|
|
iov_count, state->iov);
|
|
if (tevent_req_nomem(subreq2, req)) {
|
|
return;
|
|
}
|
|
smb1cli_req_set_mid(subreq2, state->mid);
|
|
|
|
status = smb1cli_req_chain_submit(&subreq2, 1);
|
|
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
goto fail;
|
|
}
|
|
tevent_req_set_callback(subreq2, smb1cli_trans_done2, req);
|
|
return;
|
|
}
|
|
|
|
return;
|
|
|
|
fail:
|
|
smb1cli_trans_cleanup_primary(state);
|
|
tevent_req_nterror(req, status);
|
|
}
|
|
|
|
NTSTATUS smb1cli_trans_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
|
|
uint16_t *recv_flags2,
|
|
uint16_t **setup, uint8_t min_setup,
|
|
uint8_t *num_setup,
|
|
uint8_t **param, uint32_t min_param,
|
|
uint32_t *num_param,
|
|
uint8_t **data, uint32_t min_data,
|
|
uint32_t *num_data)
|
|
{
|
|
struct smb1cli_trans_state *state =
|
|
tevent_req_data(req,
|
|
struct smb1cli_trans_state);
|
|
NTSTATUS status;
|
|
|
|
smb1cli_trans_cleanup_primary(state);
|
|
|
|
if (tevent_req_is_nterror(req, &status)) {
|
|
if (!NT_STATUS_IS_ERR(status)) {
|
|
status = NT_STATUS_INVALID_NETWORK_RESPONSE;
|
|
}
|
|
tevent_req_received(req);
|
|
return status;
|
|
}
|
|
|
|
if ((state->num_rsetup < min_setup)
|
|
|| (state->rparam.total < min_param)
|
|
|| (state->rdata.total < min_data)) {
|
|
tevent_req_received(req);
|
|
return NT_STATUS_INVALID_NETWORK_RESPONSE;
|
|
}
|
|
|
|
if (recv_flags2 != NULL) {
|
|
*recv_flags2 = state->recv_flags2;
|
|
}
|
|
|
|
if (setup != NULL) {
|
|
*setup = talloc_move(mem_ctx, &state->rsetup);
|
|
*num_setup = state->num_rsetup;
|
|
}
|
|
|
|
if (param != NULL) {
|
|
*param = talloc_move(mem_ctx, &state->rparam.data);
|
|
*num_param = state->rparam.total;
|
|
}
|
|
|
|
if (data != NULL) {
|
|
*data = talloc_move(mem_ctx, &state->rdata.data);
|
|
*num_data = state->rdata.total;
|
|
}
|
|
|
|
status = state->status;
|
|
tevent_req_received(req);
|
|
return status;
|
|
}
|
|
|
|
NTSTATUS smb1cli_trans(TALLOC_CTX *mem_ctx, struct smbXcli_conn *conn,
|
|
uint8_t trans_cmd,
|
|
uint8_t additional_flags, uint8_t clear_flags,
|
|
uint16_t additional_flags2, uint16_t clear_flags2,
|
|
uint32_t timeout_msec,
|
|
uint32_t pid,
|
|
struct smbXcli_tcon *tcon,
|
|
struct smbXcli_session *session,
|
|
const char *pipe_name, uint16_t fid, uint16_t function,
|
|
int flags,
|
|
uint16_t *setup, uint8_t num_setup, uint8_t max_setup,
|
|
uint8_t *param, uint32_t num_param, uint32_t max_param,
|
|
uint8_t *data, uint32_t num_data, uint32_t max_data,
|
|
uint16_t *recv_flags2,
|
|
uint16_t **rsetup, uint8_t min_rsetup, uint8_t *num_rsetup,
|
|
uint8_t **rparam, uint32_t min_rparam, uint32_t *num_rparam,
|
|
uint8_t **rdata, uint32_t min_rdata, uint32_t *num_rdata)
|
|
{
|
|
TALLOC_CTX *frame = talloc_stackframe();
|
|
struct tevent_context *ev;
|
|
struct tevent_req *req;
|
|
NTSTATUS status = NT_STATUS_NO_MEMORY;
|
|
|
|
if (smbXcli_conn_has_async_calls(conn)) {
|
|
/*
|
|
* Can't use sync call while an async call is in flight
|
|
*/
|
|
status = NT_STATUS_INVALID_PARAMETER_MIX;
|
|
goto fail;
|
|
}
|
|
|
|
ev = samba_tevent_context_init(frame);
|
|
if (ev == NULL) {
|
|
goto fail;
|
|
}
|
|
|
|
req = smb1cli_trans_send(frame, ev, conn, trans_cmd,
|
|
additional_flags, clear_flags,
|
|
additional_flags2, clear_flags2,
|
|
timeout_msec,
|
|
pid, tcon, session,
|
|
pipe_name, fid, function, flags,
|
|
setup, num_setup, max_setup,
|
|
param, num_param, max_param,
|
|
data, num_data, max_data);
|
|
if (req == NULL) {
|
|
goto fail;
|
|
}
|
|
|
|
if (!tevent_req_poll_ntstatus(req, ev, &status)) {
|
|
goto fail;
|
|
}
|
|
|
|
status = smb1cli_trans_recv(req, mem_ctx, recv_flags2,
|
|
rsetup, min_rsetup, num_rsetup,
|
|
rparam, min_rparam, num_rparam,
|
|
rdata, min_rdata, num_rdata);
|
|
fail:
|
|
TALLOC_FREE(frame);
|
|
return status;
|
|
}
|