*/
#include "includes.h"
-
-
-/****************************************************************************
- Send a SMB trans or trans2 request.
-****************************************************************************/
-
-bool cli_send_trans(struct cli_state *cli, int trans,
- const char *pipe_name,
- int fid, int flags,
- uint16 *setup, unsigned int lsetup, unsigned int msetup,
- const char *param, unsigned int lparam, unsigned int mparam,
- const char *data, unsigned int ldata, unsigned int mdata)
-{
- unsigned int i;
- unsigned int this_ldata,this_lparam;
- unsigned int tot_data=0,tot_param=0;
- char *outdata,*outparam;
- char *p;
- int pipe_name_len=0;
- uint16 mid;
-
- this_lparam = MIN(lparam,cli->max_xmit - (500+lsetup*2)); /* hack */
- this_ldata = MIN(ldata,cli->max_xmit - (500+lsetup*2+this_lparam));
-
- memset(cli->outbuf,'\0',smb_size);
- cli_set_message(cli->outbuf,14+lsetup,0,True);
- SCVAL(cli->outbuf,smb_com,trans);
- SSVAL(cli->outbuf,smb_tid, cli->cnum);
- cli_setup_packet(cli);
-
- /*
- * Save the mid we're using. We need this for finding
- * signing replies.
- */
-
- mid = cli->mid;
-
- if (pipe_name) {
- pipe_name_len = clistr_push(cli, smb_buf(cli->outbuf), pipe_name, -1, STR_TERMINATE);
- }
-
- outparam = smb_buf(cli->outbuf)+(trans==SMBtrans ? pipe_name_len : 3);
- outdata = outparam+this_lparam;
-
- /* primary request */
- SSVAL(cli->outbuf,smb_tpscnt,lparam); /* tpscnt */
- SSVAL(cli->outbuf,smb_tdscnt,ldata); /* tdscnt */
- SSVAL(cli->outbuf,smb_mprcnt,mparam); /* mprcnt */
- SSVAL(cli->outbuf,smb_mdrcnt,mdata); /* mdrcnt */
- SCVAL(cli->outbuf,smb_msrcnt,msetup); /* msrcnt */
- SSVAL(cli->outbuf,smb_flags,flags); /* flags */
- SIVAL(cli->outbuf,smb_timeout,0); /* timeout */
- SSVAL(cli->outbuf,smb_pscnt,this_lparam); /* pscnt */
- SSVAL(cli->outbuf,smb_psoff,smb_offset(outparam,cli->outbuf)); /* psoff */
- SSVAL(cli->outbuf,smb_dscnt,this_ldata); /* dscnt */
- SSVAL(cli->outbuf,smb_dsoff,smb_offset(outdata,cli->outbuf)); /* dsoff */
- SCVAL(cli->outbuf,smb_suwcnt,lsetup); /* suwcnt */
- for (i=0;i<lsetup;i++) /* setup[] */
- SSVAL(cli->outbuf,smb_setup+i*2,setup[i]);
- p = smb_buf(cli->outbuf);
- if (trans != SMBtrans) {
- *p++ = 0; /* put in a null smb_name */
- *p++ = 'D'; *p++ = ' '; /* observed in OS/2 */
- }
- if (this_lparam) /* param[] */
- memcpy(outparam,param,this_lparam);
- if (this_ldata) /* data[] */
- memcpy(outdata,data,this_ldata);
- cli_setup_bcc(cli, outdata+this_ldata);
-
- show_msg(cli->outbuf);
-
- if (!cli_send_smb(cli)) {
- return False;
- }
-
- cli_state_seqnum_persistent(cli, mid);
-
- if (this_ldata < ldata || this_lparam < lparam) {
- /* receive interim response */
- if (!cli_receive_smb(cli) || cli_is_error(cli)) {
- cli_state_seqnum_remove(cli, mid);
- return(False);
- }
-
- tot_data = this_ldata;
- tot_param = this_lparam;
-
- while (tot_data < ldata || tot_param < lparam) {
- this_lparam = MIN(lparam-tot_param,cli->max_xmit - 500); /* hack */
- this_ldata = MIN(ldata-tot_data,cli->max_xmit - (500+this_lparam));
-
- cli_set_message(cli->outbuf,trans==SMBtrans?8:9,0,True);
- SCVAL(cli->outbuf,smb_com,(trans==SMBtrans ? SMBtranss : SMBtranss2));
-
- outparam = smb_buf(cli->outbuf);
- outdata = outparam+this_lparam;
-
- /* secondary request */
- SSVAL(cli->outbuf,smb_tpscnt,lparam); /* tpscnt */
- SSVAL(cli->outbuf,smb_tdscnt,ldata); /* tdscnt */
- SSVAL(cli->outbuf,smb_spscnt,this_lparam); /* pscnt */
- SSVAL(cli->outbuf,smb_spsoff,smb_offset(outparam,cli->outbuf)); /* psoff */
- SSVAL(cli->outbuf,smb_spsdisp,tot_param); /* psdisp */
- SSVAL(cli->outbuf,smb_sdscnt,this_ldata); /* dscnt */
- SSVAL(cli->outbuf,smb_sdsoff,smb_offset(outdata,cli->outbuf)); /* dsoff */
- SSVAL(cli->outbuf,smb_sdsdisp,tot_data); /* dsdisp */
- if (trans==SMBtrans2)
- SSVALS(cli->outbuf,smb_sfid,fid); /* fid */
- if (this_lparam) /* param[] */
- memcpy(outparam,param+tot_param,this_lparam);
- if (this_ldata) /* data[] */
- memcpy(outdata,data+tot_data,this_ldata);
- cli_setup_bcc(cli, outdata+this_ldata);
-
- show_msg(cli->outbuf);
-
- cli->mid = mid;
- if (!cli_send_smb(cli)) {
- cli_state_seqnum_remove(cli, mid);
- return False;
- }
-
- tot_data += this_ldata;
- tot_param += this_lparam;
- }
- }
-
- return(True);
-}
-
-/****************************************************************************
- Receive a SMB trans or trans2 response allocating the necessary memory.
-****************************************************************************/
-
-bool cli_receive_trans(struct cli_state *cli,int trans,
- char **param, unsigned int *param_len,
- char **data, unsigned int *data_len)
-{
- unsigned int total_data=0;
- unsigned int total_param=0;
- unsigned int this_data,this_param;
- NTSTATUS status;
- bool ret = False;
- uint16_t mid;
-
- *data_len = *param_len = 0;
-
- mid = SVAL(cli->outbuf,smb_mid);
-
- if (!cli_receive_smb(cli)) {
- cli_state_seqnum_remove(cli, mid);
- return False;
- }
-
- show_msg(cli->inbuf);
-
- /* sanity check */
- if (CVAL(cli->inbuf,smb_com) != trans) {
- DEBUG(0,("Expected %s response, got command 0x%02x\n",
- trans==SMBtrans?"SMBtrans":"SMBtrans2",
- CVAL(cli->inbuf,smb_com)));
- cli_state_seqnum_remove(cli, mid);
- return False;
- }
-
- /*
- * An NT RPC pipe call can return ERRDOS, ERRmoredata
- * to a trans call. This is not an error and should not
- * be treated as such. Note that STATUS_NO_MORE_FILES is
- * returned when a trans2 findfirst/next finishes.
- * When setting up an encrypted transport we can also
- * see NT_STATUS_MORE_PROCESSING_REQUIRED here.
- *
- * Vista returns NT_STATUS_INACCESSIBLE_SYSTEM_SHORTCUT if the folder
- * "<share>/Users/All Users" is enumerated. This is a special pseudo
- * folder, and the response does not have parameters (nor a parameter
- * length).
- */
- status = cli_nt_error(cli);
-
- if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
- if (NT_STATUS_IS_ERR(status) ||
- NT_STATUS_EQUAL(status,STATUS_NO_MORE_FILES) ||
- NT_STATUS_EQUAL(status,NT_STATUS_INACCESSIBLE_SYSTEM_SHORTCUT)) {
- goto out;
- }
- }
-
- /* parse out the lengths */
- total_data = SVAL(cli->inbuf,smb_tdrcnt);
- total_param = SVAL(cli->inbuf,smb_tprcnt);
-
- /* allocate it */
- if (total_data!=0) {
- /* We know adding 2 is safe as total_data is an
- * SVAL <= 0xFFFF. */
- *data = (char *)SMB_REALLOC(*data,total_data+2);
- if (!(*data)) {
- DEBUG(0,("cli_receive_trans: failed to enlarge data buffer\n"));
- goto out;
- }
- }
-
- if (total_param!=0) {
- /* We know adding 2 is safe as total_param is an
- * SVAL <= 0xFFFF. */
- *param = (char *)SMB_REALLOC(*param,total_param+2);
- if (!(*param)) {
- DEBUG(0,("cli_receive_trans: failed to enlarge param buffer\n"));
- goto out;
- }
- }
-
- for (;;) {
- this_data = SVAL(cli->inbuf,smb_drcnt);
- this_param = SVAL(cli->inbuf,smb_prcnt);
-
- if (this_data + *data_len > total_data ||
- this_param + *param_len > total_param) {
- DEBUG(1,("Data overflow in cli_receive_trans\n"));
- goto out;
- }
-
- if (this_data + *data_len < this_data ||
- this_data + *data_len < *data_len ||
- this_param + *param_len < this_param ||
- this_param + *param_len < *param_len) {
- DEBUG(1,("Data overflow in cli_receive_trans\n"));
- goto out;
- }
-
- if (this_data) {
- unsigned int data_offset_out = SVAL(cli->inbuf,smb_drdisp);
- unsigned int data_offset_in = SVAL(cli->inbuf,smb_droff);
-
- if (data_offset_out > total_data ||
- data_offset_out + this_data > total_data ||
- data_offset_out + this_data < data_offset_out ||
- data_offset_out + this_data < this_data) {
- DEBUG(1,("Data overflow in cli_receive_trans\n"));
- goto out;
- }
- if (data_offset_in > cli->bufsize ||
- data_offset_in + this_data > cli->bufsize ||
- data_offset_in + this_data < data_offset_in ||
- data_offset_in + this_data < this_data) {
- DEBUG(1,("Data overflow in cli_receive_trans\n"));
- goto out;
- }
-
- memcpy(*data + data_offset_out, smb_base(cli->inbuf) + data_offset_in, this_data);
- }
- if (this_param) {
- unsigned int param_offset_out = SVAL(cli->inbuf,smb_prdisp);
- unsigned int param_offset_in = SVAL(cli->inbuf,smb_proff);
-
- if (param_offset_out > total_param ||
- param_offset_out + this_param > total_param ||
- param_offset_out + this_param < param_offset_out ||
- param_offset_out + this_param < this_param) {
- DEBUG(1,("Param overflow in cli_receive_trans\n"));
- goto out;
- }
- if (param_offset_in > cli->bufsize ||
- param_offset_in + this_param > cli->bufsize ||
- param_offset_in + this_param < param_offset_in ||
- param_offset_in + this_param < this_param) {
- DEBUG(1,("Param overflow in cli_receive_trans\n"));
- goto out;
- }
-
- memcpy(*param + param_offset_out, smb_base(cli->inbuf) + param_offset_in, this_param);
- }
- *data_len += this_data;
- *param_len += this_param;
-
- if (total_data <= *data_len && total_param <= *param_len) {
- ret = True;
- break;
- }
-
- if (!cli_receive_smb(cli)) {
- goto out;
- }
-
- show_msg(cli->inbuf);
-
- /* sanity check */
- if (CVAL(cli->inbuf,smb_com) != trans) {
- DEBUG(0,("Expected %s response, got command 0x%02x\n",
- trans==SMBtrans?"SMBtrans":"SMBtrans2",
- CVAL(cli->inbuf,smb_com)));
- goto out;
- }
- if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
- if (NT_STATUS_IS_ERR(cli_nt_error(cli))) {
- goto out;
- }
- }
-
- /* parse out the total lengths again - they can shrink! */
- if (SVAL(cli->inbuf,smb_tdrcnt) < total_data)
- total_data = SVAL(cli->inbuf,smb_tdrcnt);
- if (SVAL(cli->inbuf,smb_tprcnt) < total_param)
- total_param = SVAL(cli->inbuf,smb_tprcnt);
-
- if (total_data <= *data_len && total_param <= *param_len) {
- ret = True;
- break;
- }
- }
-
- out:
-
- cli_state_seqnum_remove(cli, mid);
-
- if (ret) {
- /* Ensure the last 2 bytes of param and data are 2 null
- * bytes. These are malloc'ed, but not included in any
- * length counts. This allows cli_XX string reading functions
- * to safely null terminate. */
- if (total_data) {
- SSVAL(*data,total_data,0);
- }
- if (total_param) {
- SSVAL(*param,total_param,0);
- }
- }
-
- return ret;
-}
-
-/****************************************************************************
- Send a SMB nttrans request.
-****************************************************************************/
-
-bool cli_send_nt_trans(struct cli_state *cli,
- int function,
- int flags,
- uint16 *setup, unsigned int lsetup, unsigned int msetup,
- char *param, unsigned int lparam, unsigned int mparam,
- char *data, unsigned int ldata, unsigned int mdata)
-{
- unsigned int i;
- unsigned int this_ldata,this_lparam;
- unsigned int tot_data=0,tot_param=0;
- uint16 mid;
- char *outdata,*outparam;
-
- this_lparam = MIN(lparam,cli->max_xmit - (500+lsetup*2)); /* hack */
- this_ldata = MIN(ldata,cli->max_xmit - (500+lsetup*2+this_lparam));
-
- memset(cli->outbuf,'\0',smb_size);
- cli_set_message(cli->outbuf,19+lsetup,0,True);
- SCVAL(cli->outbuf,smb_com,SMBnttrans);
- SSVAL(cli->outbuf,smb_tid, cli->cnum);
- cli_setup_packet(cli);
-
- /*
- * Save the mid we're using. We need this for finding
- * signing replies.
- */
-
- mid = cli->mid;
-
- outparam = smb_buf(cli->outbuf)+3;
- outdata = outparam+this_lparam;
-
- /* primary request */
- SCVAL(cli->outbuf,smb_nt_MaxSetupCount,msetup);
- SCVAL(cli->outbuf,smb_nt_Flags,flags);
- SIVAL(cli->outbuf,smb_nt_TotalParameterCount, lparam);
- SIVAL(cli->outbuf,smb_nt_TotalDataCount, ldata);
- SIVAL(cli->outbuf,smb_nt_MaxParameterCount, mparam);
- SIVAL(cli->outbuf,smb_nt_MaxDataCount, mdata);
- SIVAL(cli->outbuf,smb_nt_ParameterCount, this_lparam);
- SIVAL(cli->outbuf,smb_nt_ParameterOffset, smb_offset(outparam,cli->outbuf));
- SIVAL(cli->outbuf,smb_nt_DataCount, this_ldata);
- SIVAL(cli->outbuf,smb_nt_DataOffset, smb_offset(outdata,cli->outbuf));
- SIVAL(cli->outbuf,smb_nt_SetupCount, lsetup);
- SIVAL(cli->outbuf,smb_nt_Function, function);
- for (i=0;i<lsetup;i++) /* setup[] */
- SSVAL(cli->outbuf,smb_nt_SetupStart+i*2,setup[i]);
-
- if (this_lparam) /* param[] */
- memcpy(outparam,param,this_lparam);
- if (this_ldata) /* data[] */
- memcpy(outdata,data,this_ldata);
-
- cli_setup_bcc(cli, outdata+this_ldata);
-
- show_msg(cli->outbuf);
- if (!cli_send_smb(cli)) {
- return False;
- }
-
- cli_state_seqnum_persistent(cli, mid);
-
- if (this_ldata < ldata || this_lparam < lparam) {
- /* receive interim response */
- if (!cli_receive_smb(cli) || cli_is_error(cli)) {
- cli_state_seqnum_remove(cli, mid);
- return(False);
- }
-
- tot_data = this_ldata;
- tot_param = this_lparam;
-
- while (tot_data < ldata || tot_param < lparam) {
- this_lparam = MIN(lparam-tot_param,cli->max_xmit - 500); /* hack */
- this_ldata = MIN(ldata-tot_data,cli->max_xmit - (500+this_lparam));
-
- cli_set_message(cli->outbuf,18,0,True);
- SCVAL(cli->outbuf,smb_com,SMBnttranss);
-
- /* XXX - these should probably be aligned */
- outparam = smb_buf(cli->outbuf);
- outdata = outparam+this_lparam;
-
- /* secondary request */
- SIVAL(cli->outbuf,smb_nts_TotalParameterCount,lparam);
- SIVAL(cli->outbuf,smb_nts_TotalDataCount,ldata);
- SIVAL(cli->outbuf,smb_nts_ParameterCount,this_lparam);
- SIVAL(cli->outbuf,smb_nts_ParameterOffset,smb_offset(outparam,cli->outbuf));
- SIVAL(cli->outbuf,smb_nts_ParameterDisplacement,tot_param);
- SIVAL(cli->outbuf,smb_nts_DataCount,this_ldata);
- SIVAL(cli->outbuf,smb_nts_DataOffset,smb_offset(outdata,cli->outbuf));
- SIVAL(cli->outbuf,smb_nts_DataDisplacement,tot_data);
- if (this_lparam) /* param[] */
- memcpy(outparam,param+tot_param,this_lparam);
- if (this_ldata) /* data[] */
- memcpy(outdata,data+tot_data,this_ldata);
- cli_setup_bcc(cli, outdata+this_ldata);
-
- show_msg(cli->outbuf);
-
- cli->mid = mid;
- if (!cli_send_smb(cli)) {
- cli_state_seqnum_remove(cli, mid);
- return False;
- }
-
- tot_data += this_ldata;
- tot_param += this_lparam;
- }
- }
-
- return(True);
-}
-
-/****************************************************************************
- Receive a SMB nttrans response allocating the necessary memory.
-****************************************************************************/
-
-bool cli_receive_nt_trans(struct cli_state *cli,
- char **param, unsigned int *param_len,
- char **data, unsigned int *data_len)
-{
- unsigned int total_data=0;
- unsigned int total_param=0;
- unsigned int this_data,this_param;
- uint8 eclass;
- uint32 ecode;
- bool ret = False;
- uint16_t mid;
-
- *data_len = *param_len = 0;
-
- mid = SVAL(cli->outbuf,smb_mid);
-
- if (!cli_receive_smb(cli)) {
- cli_state_seqnum_remove(cli, mid);
- return False;
- }
-
- show_msg(cli->inbuf);
-
- /* sanity check */
- if (CVAL(cli->inbuf,smb_com) != SMBnttrans) {
- DEBUG(0,("Expected SMBnttrans response, got command 0x%02x\n",
- CVAL(cli->inbuf,smb_com)));
- cli_state_seqnum_remove(cli, mid);
- return(False);
- }
-
- /*
- * An NT RPC pipe call can return ERRDOS, ERRmoredata
- * to a trans call. This is not an error and should not
- * be treated as such.
- */
- if (cli_is_dos_error(cli)) {
- cli_dos_error(cli, &eclass, &ecode);
- if (!(eclass == ERRDOS && ecode == ERRmoredata)) {
- goto out;
- }
- }
-
- /*
- * Likewise for NT_STATUS_BUFFER_TOO_SMALL
- */
- if (cli_is_nt_error(cli)) {
- if (!NT_STATUS_EQUAL(cli_nt_error(cli),
- NT_STATUS_BUFFER_TOO_SMALL)) {
- goto out;
- }
- }
-
- /* parse out the lengths */
- total_data = IVAL(cli->inbuf,smb_ntr_TotalDataCount);
- total_param = IVAL(cli->inbuf,smb_ntr_TotalParameterCount);
- /* Only allow 16 megs. */
- if (total_param > 16*1024*1024) {
- DEBUG(0,("cli_receive_nt_trans: param buffer too large %d\n",
- total_param));
- goto out;
- }
- if (total_data > 16*1024*1024) {
- DEBUG(0,("cli_receive_nt_trans: data buffer too large %d\n",
- total_data));
- goto out;
- }
-
- /* allocate it */
- if (total_data) {
- /* We know adding 2 is safe as total_data is less
- * than 16mb (above). */
- *data = (char *)SMB_REALLOC(*data,total_data+2);
- if (!(*data)) {
- DEBUG(0,("cli_receive_nt_trans: failed to enlarge data buffer to %d\n",total_data));
- goto out;
- }
- }
-
- if (total_param) {
- /* We know adding 2 is safe as total_param is less
- * than 16mb (above). */
- *param = (char *)SMB_REALLOC(*param,total_param+2);
- if (!(*param)) {
- DEBUG(0,("cli_receive_nt_trans: failed to enlarge param buffer to %d\n", total_param));
- goto out;
- }
- }
-
- while (1) {
- this_data = SVAL(cli->inbuf,smb_ntr_DataCount);
- this_param = SVAL(cli->inbuf,smb_ntr_ParameterCount);
-
- if (this_data + *data_len > total_data ||
- this_param + *param_len > total_param) {
- DEBUG(1,("Data overflow in cli_receive_nt_trans\n"));
- goto out;
- }
-
- if (this_data + *data_len < this_data ||
- this_data + *data_len < *data_len ||
- this_param + *param_len < this_param ||
- this_param + *param_len < *param_len) {
- DEBUG(1,("Data overflow in cli_receive_nt_trans\n"));
- goto out;
- }
-
- if (this_data) {
- unsigned int data_offset_out = SVAL(cli->inbuf,smb_ntr_DataDisplacement);
- unsigned int data_offset_in = SVAL(cli->inbuf,smb_ntr_DataOffset);
-
- if (data_offset_out > total_data ||
- data_offset_out + this_data > total_data ||
- data_offset_out + this_data < data_offset_out ||
- data_offset_out + this_data < this_data) {
- DEBUG(1,("Data overflow in cli_receive_nt_trans\n"));
- goto out;
- }
- if (data_offset_in > cli->bufsize ||
- data_offset_in + this_data > cli->bufsize ||
- data_offset_in + this_data < data_offset_in ||
- data_offset_in + this_data < this_data) {
- DEBUG(1,("Data overflow in cli_receive_nt_trans\n"));
- goto out;
- }
-
- memcpy(*data + data_offset_out, smb_base(cli->inbuf) + data_offset_in, this_data);
- }
-
- if (this_param) {
- unsigned int param_offset_out = SVAL(cli->inbuf,smb_ntr_ParameterDisplacement);
- unsigned int param_offset_in = SVAL(cli->inbuf,smb_ntr_ParameterOffset);
-
- if (param_offset_out > total_param ||
- param_offset_out + this_param > total_param ||
- param_offset_out + this_param < param_offset_out ||
- param_offset_out + this_param < this_param) {
- DEBUG(1,("Param overflow in cli_receive_nt_trans\n"));
- goto out;
- }
- if (param_offset_in > cli->bufsize ||
- param_offset_in + this_param > cli->bufsize ||
- param_offset_in + this_param < param_offset_in ||
- param_offset_in + this_param < this_param) {
- DEBUG(1,("Param overflow in cli_receive_nt_trans\n"));
- goto out;
- }
-
- memcpy(*param + param_offset_out, smb_base(cli->inbuf) + param_offset_in, this_param);
- }
-
- *data_len += this_data;
- *param_len += this_param;
-
- if (total_data <= *data_len && total_param <= *param_len) {
- ret = True;
- break;
- }
-
- if (!cli_receive_smb(cli)) {
- goto out;
- }
-
- show_msg(cli->inbuf);
-
- /* sanity check */
- if (CVAL(cli->inbuf,smb_com) != SMBnttrans) {
- DEBUG(0,("Expected SMBnttrans response, got command 0x%02x\n",
- CVAL(cli->inbuf,smb_com)));
- goto out;
- }
- if (cli_is_dos_error(cli)) {
- cli_dos_error(cli, &eclass, &ecode);
- if(!(eclass == ERRDOS && ecode == ERRmoredata)) {
- goto out;
- }
- }
- /*
- * Likewise for NT_STATUS_BUFFER_TOO_SMALL
- */
- if (cli_is_nt_error(cli)) {
- if (!NT_STATUS_EQUAL(cli_nt_error(cli),
- NT_STATUS_BUFFER_TOO_SMALL)) {
- goto out;
- }
- }
-
- /* parse out the total lengths again - they can shrink! */
- if (IVAL(cli->inbuf,smb_ntr_TotalDataCount) < total_data)
- total_data = IVAL(cli->inbuf,smb_ntr_TotalDataCount);
- if (IVAL(cli->inbuf,smb_ntr_TotalParameterCount) < total_param)
- total_param = IVAL(cli->inbuf,smb_ntr_TotalParameterCount);
-
- if (total_data <= *data_len && total_param <= *param_len) {
- ret = True;
- break;
- }
- }
-
- out:
-
- cli_state_seqnum_remove(cli, mid);
-
- if (ret) {
- /* Ensure the last 2 bytes of param and data are 2 null
- * bytes. These are malloc'ed, but not included in any
- * length counts. This allows cli_XX string reading functions
- * to safely null terminate. */
- if (total_data) {
- SSVAL(*data,total_data,0);
- }
- if (total_param) {
- SSVAL(*param,total_param,0);
- }
- }
-
- return ret;
-}
+#include "libsmb/libsmb.h"
+#include "../lib/util/tevent_ntstatus.h"
+#include "async_smb.h"
struct trans_recvblob {
uint8_t *data;
uint16_t *rsetup;
struct trans_recvblob rparam;
struct trans_recvblob rdata;
+ uint16_t recv_flags2;
- TALLOC_CTX *secondary_request_ctx;
-
- struct iovec iov[4];
+ struct iovec iov[6];
uint8_t pad[4];
+ uint8_t zero_pad[4];
uint16_t vwv[32];
};
return NT_STATUS_INVALID_NETWORK_RESPONSE;
}
blob->total = total;
- blob->data = TALLOC_ARRAY(mem_ctx, uint8_t, total);
+ blob->data = talloc_array(mem_ctx, uint8_t, total);
if (blob->data == NULL) {
return NT_STATUS_NO_MEMORY;
}
struct iovec *iov = state->iov;
uint8_t *pad = state->pad;
uint16_t *vwv = state->vwv;
- uint16_t param_offset;
- uint16_t this_param = 0;
- uint16_t this_data = 0;
+ uint32_t param_offset;
+ uint32_t this_param = 0;
+ uint32_t param_pad;
+ uint32_t data_offset;
+ uint32_t this_data = 0;
+ uint32_t data_pad;
uint32_t useable_space;
uint8_t cmd;
break;
}
- useable_space = state->cli->max_xmit - smb_size - sizeof(uint16_t)*wct;
+ param_offset += wct * sizeof(uint16_t);
+ useable_space = state->cli->max_xmit - param_offset;
+
+ param_pad = param_offset % 4;
+ if (param_pad > 0) {
+ param_pad = MIN(param_pad, useable_space);
+ iov[0].iov_base = (void *)state->zero_pad;
+ iov[0].iov_len = param_pad;
+ iov += 1;
+ param_offset += param_pad;
+ }
+ useable_space = state->cli->max_xmit - param_offset;
if (state->param_sent < state->num_param) {
this_param = MIN(state->num_param - state->param_sent,
iov += 1;
}
+ data_offset = param_offset + this_param;
+ useable_space = state->cli->max_xmit - data_offset;
+
+ data_pad = data_offset % 4;
+ if (data_pad > 0) {
+ data_pad = MIN(data_pad, useable_space);
+ iov[0].iov_base = (void *)state->zero_pad;
+ iov[0].iov_len = data_pad;
+ iov += 1;
+ data_offset += data_pad;
+ }
+ useable_space = state->cli->max_xmit - data_offset;
+
if (state->data_sent < state->num_data) {
this_data = MIN(state->num_data - state->data_sent,
- useable_space - this_param);
+ useable_space);
iov[0].iov_base = (void *)(state->data + state->data_sent);
iov[0].iov_len = this_data;
iov += 1;
}
- param_offset += wct * sizeof(uint16_t);
-
DEBUG(10, ("num_setup=%u, max_setup=%u, "
"param_total=%u, this_param=%u, max_param=%u, "
"data_total=%u, this_data=%u, max_data=%u, "
- "param_offset=%u, param_disp=%u, data_disp=%u\n",
+ "param_offset=%u, param_pad=%u, param_disp=%u, "
+ "data_offset=%u, data_pad=%u, data_disp=%u\n",
(unsigned)state->num_setup, (unsigned)state->max_setup,
(unsigned)state->num_param, (unsigned)this_param,
(unsigned)state->rparam.max,
(unsigned)state->num_data, (unsigned)this_data,
(unsigned)state->rdata.max,
- (unsigned)param_offset,
- (unsigned)state->param_sent, (unsigned)state->data_sent));
+ (unsigned)param_offset, (unsigned)param_pad,
+ (unsigned)state->param_sent,
+ (unsigned)data_offset, (unsigned)data_pad,
+ (unsigned)state->data_sent));
switch (cmd) {
case SMBtrans:
SSVAL(vwv + 9, 0, this_param);
SSVAL(vwv +10, 0, param_offset);
SSVAL(vwv +11, 0, this_data);
- SSVAL(vwv +12, 0, param_offset + this_param);
+ SSVAL(vwv +12, 0, data_offset);
SCVAL(vwv +13, 0, state->num_setup);
SCVAL(vwv +13, 1, 0); /* reserved */
memcpy(vwv + 14, state->setup,
SSVAL(vwv + 3, 0, param_offset);
SSVAL(vwv + 4, 0, state->param_sent);
SSVAL(vwv + 5, 0, this_data);
- SSVAL(vwv + 6, 0, param_offset + this_param);
+ SSVAL(vwv + 6, 0, data_offset);
SSVAL(vwv + 7, 0, state->data_sent);
if (cmd == SMBtranss2) {
SSVAL(vwv + 8, 0, state->fid);
}
break;
case SMBnttrans:
- SCVAL(vwv, 0, state->max_setup);
- SSVAL(vwv, 1, 0); /* reserved */
- SIVAL(vwv, 3, state->num_param);
- SIVAL(vwv, 7, state->num_data);
- SIVAL(vwv, 11, state->rparam.max);
- SIVAL(vwv, 15, state->rdata.max);
- SIVAL(vwv, 19, this_param);
- SIVAL(vwv, 23, param_offset);
- SIVAL(vwv, 27, this_data);
- SIVAL(vwv, 31, param_offset + this_param);
- SCVAL(vwv, 35, state->num_setup);
- SSVAL(vwv, 36, state->function);
+ SCVAL(vwv + 0, 0, state->max_setup);
+ SSVAL(vwv + 0, 1, 0); /* reserved */
+ SIVAL(vwv + 1, 1, state->num_param);
+ SIVAL(vwv + 3, 1, state->num_data);
+ SIVAL(vwv + 5, 1, state->rparam.max);
+ SIVAL(vwv + 7, 1, state->rdata.max);
+ SIVAL(vwv + 9, 1, this_param);
+ SIVAL(vwv +11, 1, param_offset);
+ SIVAL(vwv +13, 1, this_data);
+ SIVAL(vwv +15, 1, data_offset);
+ SCVAL(vwv +17, 1, state->num_setup);
+ SSVAL(vwv +18, 0, state->function);
memcpy(vwv + 19, state->setup,
sizeof(uint16_t) * state->num_setup);
break;
case SMBnttranss:
- SSVAL(vwv, 0, 0); /* reserved */
- SCVAL(vwv, 2, 0); /* reserved */
- SIVAL(vwv, 3, state->num_param);
- SIVAL(vwv, 7, state->num_data);
- SIVAL(vwv, 11, this_param);
- SIVAL(vwv, 15, param_offset);
- SIVAL(vwv, 19, state->param_sent);
- SIVAL(vwv, 23, this_data);
- SIVAL(vwv, 27, param_offset + this_param);
- SIVAL(vwv, 31, state->data_sent);
- SCVAL(vwv, 35, 0); /* reserved */
+ SSVAL(vwv + 0, 0, 0); /* reserved */
+ SCVAL(vwv + 1, 0, 0); /* reserved */
+ SIVAL(vwv + 1, 1, state->num_param);
+ SIVAL(vwv + 3, 1, state->num_data);
+ SIVAL(vwv + 5, 1, this_param);
+ SIVAL(vwv + 7, 1, param_offset);
+ SIVAL(vwv + 9, 1, state->param_sent);
+ SIVAL(vwv +11, 1, this_data);
+ SIVAL(vwv +13, 1, data_offset);
+ SIVAL(vwv +15, 1, state->data_sent);
+ SCVAL(vwv +17, 1, 0); /* reserved */
break;
}
cli_ucs2(cli) ? CH_UTF16LE : CH_DOS,
pipe_name, strlen(pipe_name) + 1,
&state->pipe_name_conv,
- &state->pipe_name_conv_len, true))) {
+ &state->pipe_name_conv_len))) {
tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
return tevent_req_post(req, ev);
}
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
- state->mid = cli_smb_req_mid(subreq);
status = cli_smb_req_send(subreq);
if (!NT_STATUS_IS_OK(status)) {
tevent_req_nterror(req, status);
return tevent_req_post(req, state->ev);
}
- cli_state_seqnum_persistent(cli, state->mid);
tevent_req_set_callback(subreq, cli_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 = cli_smb_req_mid(subreq);
+ cli_state_seqnum_persistent(cli, state->mid);
+
return req;
}
uint16_t *vwv;
uint32_t num_bytes;
uint8_t *bytes;
+ uint8_t *inbuf;
uint8_t num_setup = 0;
uint16_t *setup = NULL;
uint32_t total_param = 0;
uint8_t *param = NULL;
uint8_t *data = NULL;
- status = cli_smb_recv(subreq, 0, &wct, &vwv, &num_bytes, &bytes);
+ status = cli_smb_recv(subreq, state, &inbuf, 0, &wct, &vwv,
+ &num_bytes, &bytes);
+ /*
+ * 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
&& (state->data_sent == state->num_data));
status = cli_pull_trans(
- cli_smb_inbuf(subreq), wct, vwv, num_bytes, bytes,
+ inbuf, wct, vwv, num_bytes, bytes,
state->cmd, !sent_all, &num_setup, &setup,
&total_param, &num_param, ¶m_disp, ¶m,
&total_data, &num_data, &data_disp, &data);
if ((state->rparam.total == state->rparam.received)
&& (state->rdata.total == state->rdata.received)) {
+ state->recv_flags2 = SVAL(inbuf, smb_flg2);
TALLOC_FREE(subreq);
cli_state_seqnum_remove(state->cli, state->mid);
tevent_req_done(req);
return;
}
+ TALLOC_FREE(inbuf);
+
if (!cli_smb_req_set_pending(subreq)) {
status = NT_STATUS_NO_MEMORY;
goto fail;
}
NTSTATUS cli_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,
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;
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)
goto fail;
}
- status = cli_trans_recv(req, mem_ctx, rsetup, min_rsetup, num_rsetup,
+ status = cli_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);
- if (!NT_STATUS_IS_OK(status)) {
- cli_set_error(cli, status);
- }
return status;
}
git.samba.org / metze / samba / wip.git / blobdiff