This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
This file handles the named pipe and mailslot calls
extern int max_send;
-extern fstring local_machine;
-
#define NERR_notsupported 50
-extern int smb_read_error;
+static void api_no_reply(connection_struct *conn, struct smb_request *req);
/*******************************************************************
copies parameters and data, as needed, into the smb buffer
char *rparam, int param_offset, int param_len,
char *rdata, int data_offset, int data_len)
{
- char *copy_into = smb_buf(outbuf)+1;
+ char *copy_into = smb_buf(outbuf);
if(param_len < 0)
param_len = 0;
if(data_len < 0)
data_len = 0;
- DEBUG(5,("copy_trans_params_and_data: params[%d..%d] data[%d..%d]\n",
+ DEBUG(5,("copy_trans_params_and_data: params[%d..%d] data[%d..%d] (align %d)\n",
param_offset, param_offset + param_len,
- data_offset , data_offset + data_len));
+ data_offset , data_offset + data_len,
+ align));
+
+ *copy_into = '\0';
+
+ copy_into += 1;
if (param_len)
memcpy(copy_into, &rparam[param_offset], param_len);
- copy_into += param_len + align;
+ copy_into += param_len;
+ if (align) {
+ memset(copy_into, '\0', align);
+ }
+
+ copy_into += align;
if (data_len )
memcpy(copy_into, &rdata[data_offset], data_len);
Send a trans reply.
****************************************************************************/
-void send_trans_reply(char *outbuf,
- char *rparam, int rparam_len,
- char *rdata, int rdata_len,
- BOOL buffer_too_large)
+void send_trans_reply(connection_struct *conn,
+ struct smb_request *req,
+ char *rparam, int rparam_len,
+ char *rdata, int rdata_len,
+ bool buffer_too_large)
{
int this_ldata,this_lparam;
int tot_data_sent = 0;
align = ((this_lparam)%4);
+ reply_outbuf(req, 10, 1+align+this_ldata+this_lparam);
+
+ copy_trans_params_and_data((char *)req->outbuf, align,
+ rparam, tot_param_sent, this_lparam,
+ rdata, tot_data_sent, this_ldata);
+
+ SSVAL(req->outbuf,smb_vwv0,lparam);
+ SSVAL(req->outbuf,smb_vwv1,ldata);
+ SSVAL(req->outbuf,smb_vwv3,this_lparam);
+ SSVAL(req->outbuf,smb_vwv4,smb_offset(smb_buf(req->outbuf)+1,
+ req->outbuf));
+ SSVAL(req->outbuf,smb_vwv5,0);
+ SSVAL(req->outbuf,smb_vwv6,this_ldata);
+ SSVAL(req->outbuf,smb_vwv7,smb_offset(smb_buf(req->outbuf)+1+
+ this_lparam+align,
+ req->outbuf));
+ SSVAL(req->outbuf,smb_vwv8,0);
+ SSVAL(req->outbuf,smb_vwv9,0);
+
if (buffer_too_large) {
- ERROR_NT(STATUS_BUFFER_OVERFLOW);
+ error_packet_set((char *)req->outbuf,
+ ERRDOS, ERRmoredata,
+ STATUS_BUFFER_OVERFLOW,
+ __LINE__, __FILE__);
}
- set_message(outbuf,10,1+align+this_ldata+this_lparam,True);
-
- copy_trans_params_and_data(outbuf, align,
- rparam, tot_param_sent, this_lparam,
- rdata, tot_data_sent, this_ldata);
+ show_msg((char *)req->outbuf);
+ if (!srv_send_smb(smbd_server_fd(),
+ (char *)req->outbuf,
+ IS_CONN_ENCRYPTED(conn)))
+ exit_server_cleanly("send_trans_reply: srv_send_smb failed.");
- SSVAL(outbuf,smb_vwv0,lparam);
- SSVAL(outbuf,smb_vwv1,ldata);
- SSVAL(outbuf,smb_vwv3,this_lparam);
- SSVAL(outbuf,smb_vwv4,smb_offset(smb_buf(outbuf)+1,outbuf));
- SSVAL(outbuf,smb_vwv5,0);
- SSVAL(outbuf,smb_vwv6,this_ldata);
- SSVAL(outbuf,smb_vwv7,smb_offset(smb_buf(outbuf)+1+this_lparam+align,outbuf));
- SSVAL(outbuf,smb_vwv8,0);
- SSVAL(outbuf,smb_vwv9,0);
-
- show_msg(outbuf);
- if (!send_smb(smbd_server_fd(),outbuf))
- exit_server("send_trans_reply: send_smb failed.");
+ TALLOC_FREE(req->outbuf);
tot_data_sent = this_ldata;
tot_param_sent = this_lparam;
align = (this_lparam%4);
- set_message(outbuf,10,1+this_ldata+this_lparam+align,False);
-
- copy_trans_params_and_data(outbuf, align,
- rparam, tot_param_sent, this_lparam,
- rdata, tot_data_sent, this_ldata);
+ reply_outbuf(req, 10, 1+this_ldata+this_lparam+align);
- SSVAL(outbuf,smb_vwv3,this_lparam);
- SSVAL(outbuf,smb_vwv4,smb_offset(smb_buf(outbuf)+1,outbuf));
- SSVAL(outbuf,smb_vwv5,tot_param_sent);
- SSVAL(outbuf,smb_vwv6,this_ldata);
- SSVAL(outbuf,smb_vwv7,smb_offset(smb_buf(outbuf)+1+this_lparam+align,outbuf));
- SSVAL(outbuf,smb_vwv8,tot_data_sent);
- SSVAL(outbuf,smb_vwv9,0);
+ copy_trans_params_and_data((char *)req->outbuf, align,
+ rparam, tot_param_sent, this_lparam,
+ rdata, tot_data_sent, this_ldata);
+
+ SSVAL(req->outbuf,smb_vwv3,this_lparam);
+ SSVAL(req->outbuf,smb_vwv4,smb_offset(smb_buf(req->outbuf)+1,
+ req->outbuf));
+ SSVAL(req->outbuf,smb_vwv5,tot_param_sent);
+ SSVAL(req->outbuf,smb_vwv6,this_ldata);
+ SSVAL(req->outbuf,smb_vwv7,smb_offset(smb_buf(req->outbuf)+1+
+ this_lparam+align,
+ req->outbuf));
+ SSVAL(req->outbuf,smb_vwv8,tot_data_sent);
+ SSVAL(req->outbuf,smb_vwv9,0);
+
+ if (buffer_too_large) {
+ error_packet_set((char *)req->outbuf,
+ ERRDOS, ERRmoredata,
+ STATUS_BUFFER_OVERFLOW,
+ __LINE__, __FILE__);
+ }
- show_msg(outbuf);
- if (!send_smb(smbd_server_fd(),outbuf))
- exit_server("send_trans_reply: send_smb failed.");
+ show_msg((char *)req->outbuf);
+ if (!srv_send_smb(smbd_server_fd(),
+ (char *)req->outbuf,
+ IS_CONN_ENCRYPTED(conn)))
+ exit_server_cleanly("send_trans_reply: srv_send_smb failed.");
tot_data_sent += this_ldata;
tot_param_sent += this_lparam;
+ TALLOC_FREE(req->outbuf);
}
}
Start the first part of an RPC reply which began with an SMBtrans request.
****************************************************************************/
-static BOOL api_rpc_trans_reply(char *outbuf, smb_np_struct *p)
+static void api_rpc_trans_reply(connection_struct *conn, struct smb_request *req, smb_np_struct *p)
{
- BOOL is_data_outstanding;
- char *rdata = malloc(p->max_trans_reply);
+ bool is_data_outstanding;
+ char *rdata = (char *)SMB_MALLOC(p->max_trans_reply);
int data_len;
if(rdata == NULL) {
DEBUG(0,("api_rpc_trans_reply: malloc fail.\n"));
- return False;
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
}
if((data_len = read_from_pipe( p, rdata, p->max_trans_reply,
&is_data_outstanding)) < 0) {
SAFE_FREE(rdata);
- return False;
+ api_no_reply(conn,req);
+ return;
}
- send_trans_reply(outbuf, NULL, 0, rdata, data_len, is_data_outstanding);
-
+ send_trans_reply(conn, req, NULL, 0, rdata, data_len, is_data_outstanding);
SAFE_FREE(rdata);
- return True;
+ return;
}
/****************************************************************************
WaitNamedPipeHandleState
****************************************************************************/
-static BOOL api_WNPHS(char *outbuf, smb_np_struct *p, char *param, int param_len)
+static void api_WNPHS(connection_struct *conn, struct smb_request *req, smb_np_struct *p,
+ char *param, int param_len)
{
uint16 priority;
- if (!param || param_len < 2)
- return False;
+ if (!param || param_len < 2) {
+ reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return;
+ }
priority = SVAL(param,0);
DEBUG(4,("WaitNamedPipeHandleState priority %x\n", priority));
if (wait_rpc_pipe_hnd_state(p, priority)) {
/* now send the reply */
- send_trans_reply(outbuf, NULL, 0, NULL, 0, False);
- return True;
+ send_trans_reply(conn, req, NULL, 0, NULL, 0, False);
+ return;
}
- return False;
+ api_no_reply(conn,req);
}
SetNamedPipeHandleState
****************************************************************************/
-static BOOL api_SNPHS(char *outbuf, smb_np_struct *p, char *param, int param_len)
+static void api_SNPHS(connection_struct *conn, struct smb_request *req, smb_np_struct *p,
+ char *param, int param_len)
{
uint16 id;
- if (!param || param_len < 2)
- return False;
+ if (!param || param_len < 2) {
+ reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return;
+ }
id = SVAL(param,0);
DEBUG(4,("SetNamedPipeHandleState to code %x\n", id));
if (set_rpc_pipe_hnd_state(p, id)) {
/* now send the reply */
- send_trans_reply(outbuf, NULL, 0, NULL, 0, False);
- return True;
+ send_trans_reply(conn, req, NULL, 0, NULL, 0, False);
+ return;
}
- return False;
+ api_no_reply(conn,req);
}
When no reply is generated, indicate unsupported.
****************************************************************************/
-static BOOL api_no_reply(char *outbuf, int max_rdata_len)
+static void api_no_reply(connection_struct *conn, struct smb_request *req)
{
char rparam[4];
DEBUG(3,("Unsupported API fd command\n"));
/* now send the reply */
- send_trans_reply(outbuf, rparam, 4, NULL, 0, False);
+ send_trans_reply(conn, req, rparam, 4, NULL, 0, False);
- return -1;
+ return;
}
/****************************************************************************
Handle remote api calls delivered to a named pipe already opened.
****************************************************************************/
-static int api_fd_reply(connection_struct *conn,uint16 vuid,char *outbuf,
- uint16 *setup,char *data,char *params,
- int suwcnt,int tdscnt,int tpscnt,int mdrcnt,int mprcnt)
+static void api_fd_reply(connection_struct *conn, uint16 vuid,
+ struct smb_request *req,
+ uint16 *setup, char *data, char *params,
+ int suwcnt, int tdscnt, int tpscnt,
+ int mdrcnt, int mprcnt)
{
- BOOL reply = False;
+ bool reply = False;
smb_np_struct *p = NULL;
int pnum;
int subcommand;
/* First find out the name of this file. */
if (suwcnt != 2) {
DEBUG(0,("Unexpected named pipe transaction.\n"));
- return(-1);
+ reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return;
}
/* Get the file handle and hence the file name. */
subcommand = ((int)setup[0]) & 0xFFFF;
if(!(p = get_rpc_pipe(pnum))) {
+ if (subcommand == TRANSACT_WAITNAMEDPIPEHANDLESTATE) {
+ /* Win9x does this call with a unicode pipe name, not a pnum. */
+ /* Just return success for now... */
+ DEBUG(3,("Got TRANSACT_WAITNAMEDPIPEHANDLESTATE on text pipe name\n"));
+ send_trans_reply(conn, req, NULL, 0, NULL, 0, False);
+ return;
+ }
+
DEBUG(1,("api_fd_reply: INVALID PIPE HANDLE: %x\n", pnum));
- return api_no_reply(outbuf, mdrcnt);
+ reply_nterror(req, NT_STATUS_INVALID_HANDLE);
+ return;
}
- DEBUG(3,("Got API command 0x%x on pipe \"%s\" (pnum %x)", subcommand, p->name, pnum));
+ if (vuid != p->vuid) {
+ DEBUG(1, ("Got pipe request (pnum %x) using invalid VUID %d, "
+ "expected %d\n", pnum, vuid, p->vuid));
+ reply_nterror(req, NT_STATUS_INVALID_HANDLE);
+ return;
+ }
+
+ DEBUG(3,("Got API command 0x%x on pipe \"%s\" (pnum %x)\n", subcommand, p->name, pnum));
/* record maximum data length that can be transmitted in an SMBtrans */
p->max_trans_reply = mdrcnt;
case TRANSACT_DCERPCCMD:
/* dce/rpc command */
reply = write_to_pipe(p, data, tdscnt);
- if (reply)
- reply = api_rpc_trans_reply(outbuf, p);
+ if (!reply) {
+ api_no_reply(conn, req);
+ return;
+ }
+ api_rpc_trans_reply(conn, req, p);
break;
case TRANSACT_WAITNAMEDPIPEHANDLESTATE:
/* Wait Named Pipe Handle state */
- reply = api_WNPHS(outbuf, p, params, tpscnt);
+ api_WNPHS(conn, req, p, params, tpscnt);
break;
case TRANSACT_SETNAMEDPIPEHANDLESTATE:
/* Set Named Pipe Handle state */
- reply = api_SNPHS(outbuf, p, params, tpscnt);
+ api_SNPHS(conn, req, p, params, tpscnt);
break;
+ default:
+ reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return;
}
-
- if (!reply)
- return api_no_reply(outbuf, mdrcnt);
-
- return -1;
}
/****************************************************************************
- handle named pipe commands
- ****************************************************************************/
-static int named_pipe(connection_struct *conn,uint16 vuid, char *outbuf,char *name,
- uint16 *setup,char *data,char *params,
- int suwcnt,int tdscnt,int tpscnt,
- int msrcnt,int mdrcnt,int mprcnt)
+ Handle named pipe commands.
+****************************************************************************/
+
+static void named_pipe(connection_struct *conn, uint16 vuid,
+ struct smb_request *req,
+ const char *name, uint16 *setup,
+ char *data, char *params,
+ int suwcnt, int tdscnt,int tpscnt,
+ int msrcnt, int mdrcnt, int mprcnt)
{
DEBUG(3,("named pipe command on <%s> name\n", name));
- if (strequal(name,"LANMAN"))
- return api_reply(conn,vuid,outbuf,data,params,tdscnt,tpscnt,mdrcnt,mprcnt);
+ if (strequal(name,"LANMAN")) {
+ api_reply(conn, vuid, req,
+ data, params,
+ tdscnt, tpscnt,
+ mdrcnt, mprcnt);
+ return;
+ }
if (strequal(name,"WKSSVC") ||
strequal(name,"SRVSVC") ||
strequal(name,"WINREG") ||
strequal(name,"SAMR") ||
- strequal(name,"LSARPC"))
- {
+ strequal(name,"LSARPC")) {
+
DEBUG(4,("named pipe command from Win95 (wow!)\n"));
- return api_fd_reply(conn,vuid,outbuf,setup,data,params,suwcnt,tdscnt,tpscnt,mdrcnt,mprcnt);
+
+ api_fd_reply(conn, vuid, req,
+ setup, data, params,
+ suwcnt, tdscnt, tpscnt,
+ mdrcnt, mprcnt);
+ return;
}
- if (strlen(name) < 1)
- return api_fd_reply(conn,vuid,outbuf,setup,data,params,suwcnt,tdscnt,tpscnt,mdrcnt,mprcnt);
+ if (strlen(name) < 1) {
+ api_fd_reply(conn, vuid, req,
+ setup, data,
+ params, suwcnt, tdscnt,
+ tpscnt, mdrcnt, mprcnt);
+ return;
+ }
if (setup)
- DEBUG(3,("unknown named pipe: setup 0x%X setup1=%d\n", (int)setup[0],(int)setup[1]));
+ DEBUG(3,("unknown named pipe: setup 0x%X setup1=%d\n",
+ (int)setup[0],(int)setup[1]));
- return 0;
+ reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
+ return;
}
+static void handle_trans(connection_struct *conn, struct smb_request *req,
+ struct trans_state *state)
+{
+ char *local_machine_name;
+ int name_offset = 0;
+
+ DEBUG(3,("trans <%s> data=%u params=%u setup=%u\n",
+ state->name,(unsigned int)state->total_data,(unsigned int)state->total_param,
+ (unsigned int)state->setup_count));
+
+ /*
+ * WinCE wierdness....
+ */
+
+ local_machine_name = talloc_asprintf(state, "\\%s\\",
+ get_local_machine_name());
+
+ if (local_machine_name == NULL) {
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
+ }
+
+ if (strnequal(state->name, local_machine_name,
+ strlen(local_machine_name))) {
+ name_offset = strlen(local_machine_name)-1;
+ }
+
+ if (!strnequal(&state->name[name_offset], "\\PIPE",
+ strlen("\\PIPE"))) {
+ reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
+ return;
+ }
+
+ name_offset += strlen("\\PIPE");
+
+ /* Win9x weirdness. When talking to a unicode server Win9x
+ only sends \PIPE instead of \PIPE\ */
+
+ if (state->name[name_offset] == '\\')
+ name_offset++;
+
+ DEBUG(5,("calling named_pipe\n"));
+ named_pipe(conn, state->vuid, req,
+ state->name+name_offset,
+ state->setup,state->data,
+ state->param,
+ state->setup_count,state->total_data,
+ state->total_param,
+ state->max_setup_return,
+ state->max_data_return,
+ state->max_param_return);
+
+ if (state->close_on_completion) {
+ close_cnum(conn,state->vuid);
+ req->conn = NULL;
+ }
+
+ return;
+}
/****************************************************************************
Reply to a SMBtrans.
****************************************************************************/
-int reply_trans(connection_struct *conn, char *inbuf,char *outbuf, int size, int bufsize)
+void reply_trans(struct smb_request *req)
{
- fstring name;
- int name_offset = 0;
- char *data=NULL,*params=NULL;
- uint16 *setup=NULL;
- int outsize = 0;
- uint16 vuid = SVAL(inbuf,smb_uid);
- unsigned int tpscnt = SVAL(inbuf,smb_vwv0);
- unsigned int tdscnt = SVAL(inbuf,smb_vwv1);
- unsigned int mprcnt = SVAL(inbuf,smb_vwv2);
- unsigned int mdrcnt = SVAL(inbuf,smb_vwv3);
- unsigned int msrcnt = CVAL(inbuf,smb_vwv4);
- BOOL close_on_completion = BITSETW(inbuf+smb_vwv5,0);
- BOOL one_way = BITSETW(inbuf+smb_vwv5,1);
- unsigned int pscnt = SVAL(inbuf,smb_vwv9);
- unsigned int psoff = SVAL(inbuf,smb_vwv10);
- unsigned int dscnt = SVAL(inbuf,smb_vwv11);
- unsigned int dsoff = SVAL(inbuf,smb_vwv12);
- unsigned int suwcnt = CVAL(inbuf,smb_vwv13);
+ connection_struct *conn = req->conn;
+ unsigned int dsoff;
+ unsigned int dscnt;
+ unsigned int psoff;
+ unsigned int pscnt;
+ struct trans_state *state;
+ NTSTATUS result;
+ unsigned int size;
+ unsigned int av_size;
+
START_PROFILE(SMBtrans);
- memset(name, '\0',sizeof(name));
- srvstr_pull_buf(inbuf, name, smb_buf(inbuf), sizeof(name), STR_TERMINATE);
+ if (req->wct < 14) {
+ reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ END_PROFILE(SMBtrans);
+ return;
+ }
+
+ size = smb_len(req->inbuf) + 4;
+ av_size = smb_len(req->inbuf);
+ dsoff = SVAL(req->inbuf, smb_dsoff);
+ dscnt = SVAL(req->inbuf, smb_dscnt);
+ psoff = SVAL(req->inbuf, smb_psoff);
+ pscnt = SVAL(req->inbuf, smb_pscnt);
+
+ result = allow_new_trans(conn->pending_trans, req->mid);
+ if (!NT_STATUS_IS_OK(result)) {
+ DEBUG(2, ("Got invalid trans request: %s\n",
+ nt_errstr(result)));
+ reply_nterror(req, result);
+ END_PROFILE(SMBtrans);
+ return;
+ }
+
+ if ((state = TALLOC_P(conn->mem_ctx, struct trans_state)) == NULL) {
+ DEBUG(0, ("talloc failed\n"));
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ END_PROFILE(SMBtrans);
+ return;
+ }
- if (dscnt > tdscnt || pscnt > tpscnt)
+ state->cmd = SMBtrans;
+
+ state->mid = req->mid;
+ state->vuid = req->vuid;
+ state->setup_count = CVAL(req->inbuf, smb_suwcnt);
+ state->setup = NULL;
+ state->total_param = SVAL(req->inbuf, smb_tpscnt);
+ state->param = NULL;
+ state->total_data = SVAL(req->inbuf, smb_tdscnt);
+ state->data = NULL;
+ state->max_param_return = SVAL(req->inbuf, smb_mprcnt);
+ state->max_data_return = SVAL(req->inbuf, smb_mdrcnt);
+ state->max_setup_return = CVAL(req->inbuf, smb_msrcnt);
+ state->close_on_completion = BITSETW(req->inbuf+smb_vwv5,0);
+ state->one_way = BITSETW(req->inbuf+smb_vwv5,1);
+
+ srvstr_pull_buf_talloc(state, req->inbuf, req->flags2, &state->name,
+ smb_buf(req->inbuf), STR_TERMINATE);
+
+ if ((dscnt > state->total_data) || (pscnt > state->total_param) ||
+ !state->name)
goto bad_param;
-
- if (tdscnt) {
- if((data = (char *)malloc(tdscnt)) == NULL) {
- DEBUG(0,("reply_trans: data malloc fail for %u bytes !\n", tdscnt));
+
+ if (state->total_data) {
+ /* Can't use talloc here, the core routines do realloc on the
+ * params and data. Out of paranoia, 100 bytes too many. */
+ state->data = (char *)SMB_MALLOC(state->total_data+100);
+ if (state->data == NULL) {
+ DEBUG(0,("reply_trans: data malloc fail for %u "
+ "bytes !\n", (unsigned int)state->total_data));
+ TALLOC_FREE(state);
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
END_PROFILE(SMBtrans);
- return(ERROR_DOS(ERRDOS,ERRnomem));
- }
- if ((dsoff+dscnt < dsoff) || (dsoff+dscnt < dscnt))
+ return;
+ }
+ /* null-terminate the slack space */
+ memset(&state->data[state->total_data], 0, 100);
+
+ if (dscnt > state->total_data ||
+ dsoff+dscnt < dsoff) {
goto bad_param;
- if (smb_base(inbuf)+dsoff+dscnt > inbuf + size)
+ }
+
+ if (dsoff > av_size ||
+ dscnt > av_size ||
+ dsoff+dscnt > av_size) {
goto bad_param;
+ }
- memcpy(data,smb_base(inbuf)+dsoff,dscnt);
+ memcpy(state->data,smb_base(req->inbuf)+dsoff,dscnt);
}
- if (tpscnt) {
- if((params = (char *)malloc(tpscnt)) == NULL) {
- DEBUG(0,("reply_trans: param malloc fail for %u bytes !\n", tpscnt));
- SAFE_FREE(data);
+ if (state->total_param) {
+ /* Can't use talloc here, the core routines do realloc on the
+ * params and data. Out of paranoia, 100 bytes too many */
+ state->param = (char *)SMB_MALLOC(state->total_param+100);
+ if (state->param == NULL) {
+ DEBUG(0,("reply_trans: param malloc fail for %u "
+ "bytes !\n", (unsigned int)state->total_param));
+ SAFE_FREE(state->data);
+ TALLOC_FREE(state);
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
END_PROFILE(SMBtrans);
- return(ERROR_DOS(ERRDOS,ERRnomem));
+ return;
}
- if ((psoff+pscnt < psoff) || (psoff+pscnt < pscnt))
- goto bad_param;
- if (smb_base(inbuf)+psoff+pscnt > inbuf + size)
+ /* null-terminate the slack space */
+ memset(&state->param[state->total_param], 0, 100);
+
+ if (pscnt > state->total_param ||
+ psoff+pscnt < psoff) {
goto bad_param;
+ }
+
+ if (psoff > av_size ||
+ pscnt > av_size ||
+ psoff+pscnt > av_size) {
+ goto bad_param;
+ }
- memcpy(params,smb_base(inbuf)+psoff,pscnt);
+ memcpy(state->param,smb_base(req->inbuf)+psoff,pscnt);
}
- if (suwcnt) {
+ state->received_data = dscnt;
+ state->received_param = pscnt;
+
+ if (state->setup_count) {
unsigned int i;
- if((setup = (uint16 *)malloc(suwcnt*sizeof(uint16))) == NULL) {
- DEBUG(0,("reply_trans: setup malloc fail for %u bytes !\n", (unsigned int)(suwcnt * sizeof(uint16))));
- SAFE_FREE(data);
- SAFE_FREE(params);
+ if((state->setup = TALLOC_ARRAY(
+ state, uint16, state->setup_count)) == NULL) {
+ DEBUG(0,("reply_trans: setup malloc fail for %u "
+ "bytes !\n", (unsigned int)
+ (state->setup_count * sizeof(uint16))));
+ SAFE_FREE(state->data);
+ SAFE_FREE(state->param);
+ TALLOC_FREE(state);
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
END_PROFILE(SMBtrans);
- return(ERROR_DOS(ERRDOS,ERRnomem));
+ return;
}
- if (inbuf+smb_vwv14+(suwcnt*SIZEOFWORD) > inbuf + size)
+ if (req->inbuf+smb_vwv14+(state->setup_count*SIZEOFWORD) >
+ req->inbuf + size)
goto bad_param;
- if ((smb_vwv14+(suwcnt*SIZEOFWORD) < smb_vwv14) || (smb_vwv14+(suwcnt*SIZEOFWORD) < (suwcnt*SIZEOFWORD)))
+ if ((smb_vwv14+(state->setup_count*SIZEOFWORD) < smb_vwv14) ||
+ (smb_vwv14+(state->setup_count*SIZEOFWORD) <
+ (state->setup_count*SIZEOFWORD)))
goto bad_param;
- for (i=0;i<suwcnt;i++)
- setup[i] = SVAL(inbuf,smb_vwv14+i*SIZEOFWORD);
+ for (i=0;i<state->setup_count;i++)
+ state->setup[i] = SVAL(req->inbuf,
+ smb_vwv14+i*SIZEOFWORD);
}
+ state->received_param = pscnt;
+
+ if ((state->received_param != state->total_param) ||
+ (state->received_data != state->total_data)) {
+ DLIST_ADD(conn->pending_trans, state);
- if (pscnt < tpscnt || dscnt < tdscnt) {
/* We need to send an interim response then receive the rest
of the parameter/data bytes */
- outsize = set_message(outbuf,0,0,True);
- show_msg(outbuf);
- if (!send_smb(smbd_server_fd(),outbuf))
- exit_server("reply_trans: send_smb failed.");
- }
-
- /* receive the rest of the trans packet */
- while (pscnt < tpscnt || dscnt < tdscnt) {
- BOOL ret;
- unsigned int pcnt,poff,dcnt,doff,pdisp,ddisp;
-
- ret = receive_next_smb(inbuf,bufsize,SMB_SECONDARY_WAIT);
-
- if ((ret && (CVAL(inbuf, smb_com) != SMBtranss)) || !ret) {
- if(ret) {
- DEBUG(0,("reply_trans: Invalid secondary trans packet\n"));
- } else {
- DEBUG(0,("reply_trans: %s in getting secondary trans response.\n",
- (smb_read_error == READ_ERROR) ? "error" : "timeout" ));
- }
- SAFE_FREE(params);
- SAFE_FREE(data);
- SAFE_FREE(setup);
- END_PROFILE(SMBtrans);
- return(ERROR_DOS(ERRSRV,ERRerror));
+ reply_outbuf(req, 0, 0);
+ show_msg((char *)req->outbuf);
+ END_PROFILE(SMBtrans);
+ return;
+ }
+
+ handle_trans(conn, req, state);
+
+ SAFE_FREE(state->data);
+ SAFE_FREE(state->param);
+ TALLOC_FREE(state);
+
+ END_PROFILE(SMBtrans);
+ return;
+
+ bad_param:
+
+ DEBUG(0,("reply_trans: invalid trans parameters\n"));
+ SAFE_FREE(state->data);
+ SAFE_FREE(state->param);
+ TALLOC_FREE(state);
+ END_PROFILE(SMBtrans);
+ reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return;
+}
+
+/****************************************************************************
+ Reply to a secondary SMBtrans.
+ ****************************************************************************/
+
+void reply_transs(struct smb_request *req)
+{
+ connection_struct *conn = req->conn;
+ unsigned int pcnt,poff,dcnt,doff,pdisp,ddisp;
+ struct trans_state *state;
+ unsigned int av_size;
+
+ START_PROFILE(SMBtranss);
+
+ show_msg((char *)req->inbuf);
+
+ if (req->wct < 8) {
+ reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ END_PROFILE(SMBtranss);
+ return;
+ }
+
+ for (state = conn->pending_trans; state != NULL;
+ state = state->next) {
+ if (state->mid == req->mid) {
+ break;
}
+ }
- show_msg(inbuf);
-
- /* Revise total_params and total_data in case they have changed downwards */
- if (SVAL(inbuf,smb_vwv0) < tpscnt)
- tpscnt = SVAL(inbuf,smb_vwv0);
- if (SVAL(inbuf,smb_vwv1) < tdscnt)
- tdscnt = SVAL(inbuf,smb_vwv1);
-
- pcnt = SVAL(inbuf,smb_vwv2);
- poff = SVAL(inbuf,smb_vwv3);
- pdisp = SVAL(inbuf,smb_vwv4);
-
- dcnt = SVAL(inbuf,smb_vwv5);
- doff = SVAL(inbuf,smb_vwv6);
- ddisp = SVAL(inbuf,smb_vwv7);
+ if ((state == NULL) || (state->cmd != SMBtrans)) {
+ reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ END_PROFILE(SMBtranss);
+ return;
+ }
+
+ /* Revise total_params and total_data in case they have changed
+ * downwards */
+
+ if (SVAL(req->inbuf, smb_vwv0) < state->total_param)
+ state->total_param = SVAL(req->inbuf,smb_vwv0);
+ if (SVAL(req->inbuf, smb_vwv1) < state->total_data)
+ state->total_data = SVAL(req->inbuf,smb_vwv1);
+
+ av_size = smb_len(req->inbuf);
+
+ pcnt = SVAL(req->inbuf, smb_spscnt);
+ poff = SVAL(req->inbuf, smb_spsoff);
+ pdisp = SVAL(req->inbuf, smb_spsdisp);
+
+ dcnt = SVAL(req->inbuf, smb_sdscnt);
+ doff = SVAL(req->inbuf, smb_sdsoff);
+ ddisp = SVAL(req->inbuf, smb_sdsdisp);
+
+ state->received_param += pcnt;
+ state->received_data += dcnt;
- pscnt += pcnt;
- dscnt += dcnt;
+ if ((state->received_data > state->total_data) ||
+ (state->received_param > state->total_param))
+ goto bad_param;
- if (dscnt > tdscnt || pscnt > tpscnt)
+ if (pcnt) {
+ if (pdisp > state->total_param ||
+ pcnt > state->total_param ||
+ pdisp+pcnt > state->total_param ||
+ pdisp+pcnt < pdisp) {
goto bad_param;
-
- if (pcnt) {
- if (pdisp+pcnt >= tpscnt)
- goto bad_param;
- if ((pdisp+pcnt < pdisp) || (pdisp+pcnt < pcnt))
- goto bad_param;
- if (smb_base(inbuf) + poff + pcnt >= inbuf + bufsize)
- goto bad_param;
- if (params + pdisp < params)
- goto bad_param;
-
- memcpy(params+pdisp,smb_base(inbuf)+poff,pcnt);
}
- if (dcnt) {
- if (ddisp+dcnt >= tdscnt)
- goto bad_param;
- if ((ddisp+dcnt < ddisp) || (ddisp+dcnt < dcnt))
- goto bad_param;
- if (smb_base(inbuf) + doff + dcnt >= inbuf + bufsize)
- goto bad_param;
- if (data + ddisp < data)
- goto bad_param;
-
- memcpy(data+ddisp,smb_base(inbuf)+doff,dcnt);
+ if (poff > av_size ||
+ pcnt > av_size ||
+ poff+pcnt > av_size ||
+ poff+pcnt < poff) {
+ goto bad_param;
}
- }
-
-
- DEBUG(3,("trans <%s> data=%u params=%u setup=%u\n",
- name,tdscnt,tpscnt,suwcnt));
-
- /*
- * WinCE wierdness....
- */
- if (name[0] == '\\' && (StrnCaseCmp(&name[1],local_machine, strlen(local_machine)) == 0) &&
- (name[strlen(local_machine)+1] == '\\'))
- name_offset = strlen(local_machine)+1;
+ memcpy(state->param+pdisp,smb_base(req->inbuf)+poff,
+ pcnt);
+ }
- if (strnequal(&name[name_offset], "\\PIPE", strlen("\\PIPE"))) {
- name_offset += strlen("\\PIPE");
+ if (dcnt) {
+ if (ddisp > state->total_data ||
+ dcnt > state->total_data ||
+ ddisp+dcnt > state->total_data ||
+ ddisp+dcnt < ddisp) {
+ goto bad_param;
+ }
- /* Win9x weirdness. When talking to a unicode server Win9x
- only sends \PIPE instead of \PIPE\ */
+ if (ddisp > av_size ||
+ dcnt > av_size ||
+ ddisp+dcnt > av_size ||
+ ddisp+dcnt < ddisp) {
+ goto bad_param;
+ }
- if (name[name_offset] == '\\')
- name_offset++;
+ memcpy(state->data+ddisp, smb_base(req->inbuf)+doff,
+ dcnt);
+ }
- DEBUG(5,("calling named_pipe\n"));
- outsize = named_pipe(conn,vuid,outbuf,
- name+name_offset,setup,data,params,
- suwcnt,tdscnt,tpscnt,msrcnt,mdrcnt,mprcnt);
- } else {
- DEBUG(3,("invalid pipe name\n"));
- outsize = 0;
+ if ((state->received_param < state->total_param) ||
+ (state->received_data < state->total_data)) {
+ END_PROFILE(SMBtranss);
+ return;
}
-
- SAFE_FREE(data);
- SAFE_FREE(params);
- SAFE_FREE(setup);
-
- if (close_on_completion)
- close_cnum(conn,vuid);
+ /*
+ * construct_reply_common will copy smb_com from inbuf to
+ * outbuf. SMBtranss is wrong here.
+ */
+ SCVAL(req->inbuf,smb_com,SMBtrans);
- if (one_way) {
- END_PROFILE(SMBtrans);
- return(-1);
- }
-
- if (outsize == 0) {
- END_PROFILE(SMBtrans);
- return(ERROR_DOS(ERRSRV,ERRnosupport));
- }
-
- END_PROFILE(SMBtrans);
- return(outsize);
+ handle_trans(conn, req, state);
+
+ DLIST_REMOVE(conn->pending_trans, state);
+ SAFE_FREE(state->data);
+ SAFE_FREE(state->param);
+ TALLOC_FREE(state);
+ END_PROFILE(SMBtranss);
+ return;
bad_param:
- DEBUG(0,("reply_trans: invalid trans parameters\n"));
- SAFE_FREE(data);
- SAFE_FREE(params);
- SAFE_FREE(setup);
- END_PROFILE(SMBtrans);
- return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
+ DEBUG(0,("reply_transs: invalid trans parameters\n"));
+ DLIST_REMOVE(conn->pending_trans, state);
+ SAFE_FREE(state->data);
+ SAFE_FREE(state->param);
+ TALLOC_FREE(state);
+ reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ END_PROFILE(SMBtranss);
+ return;
}
git.samba.org / tprouty / samba.git / blobdiff