r4229: - added support for multi-part SMBtrans and SMBtrans2 requests in the
[samba.git] / source4 / libcli / raw / rawtrans.c
index fb8ab4203f80d9fdc56a8955736a40ba77a0258a..ba80d598195adb98d0ca7483234b21f2ed3cb03a 100644 (file)
 */
 
 #include "includes.h"
+#include "dlinklist.h"
 #include "libcli/raw/libcliraw.h"
 
+#define TORTURE_TRANS_DATA 0
 
 /*
   check out of bounds for incoming data
@@ -198,20 +200,21 @@ NTSTATUS smb_raw_trans_recv(struct smbcli_request *req,
        return smb_raw_trans2_recv(req, mem_ctx, parms);
 }
 
-/****************************************************************************
- trans/trans2 raw async interface - only BLOBs used in this interface.
- note that this doesn't yet support multi-part requests
-****************************************************************************/
+
+/*
+  trans/trans2 raw async interface - only BLOBs used in this interface.
+*/
 struct smbcli_request *smb_raw_trans_send_backend(struct smbcli_tree *tree,
-                                              struct smb_trans2 *parms,
-                                              uint8_t command)
+                                                 struct smb_trans2 *parms,
+                                                 uint8_t command)
 {
        int wct = 14 + parms->in.setup_count;
-       struct smbcli_request *req; 
+       struct smbcli_request *req, *req2
        uint8_t *outdata,*outparam;
        int i;
        int padding;
        size_t namelen = 0;
+       uint16_t data_disp, data_length, max_data;
 
        if (command == SMBtrans)
                padding = 1;
@@ -236,6 +239,19 @@ struct smbcli_request *smb_raw_trans_send_backend(struct smbcli_tree *tree,
        /* make sure we don't leak data via the padding */
        memset(req->out.data, 0, padding);
 
+       data_length = parms->in.data.length;
+
+       max_data = smb_raw_max_trans_data(tree, parms->in.params.length);
+       if (max_data < data_length) {
+               data_length = max_data;
+       }
+
+#if TORTURE_TRANS_DATA
+       if (data_length > 1) {
+               data_length /= 2;
+       }
+#endif
+
        /* primary request */
        SSVAL(req->out.vwv,VWV(0),parms->in.params.length);
        SSVAL(req->out.vwv,VWV(1),parms->in.data.length);
@@ -247,7 +263,7 @@ struct smbcli_request *smb_raw_trans_send_backend(struct smbcli_tree *tree,
        SSVAL(req->out.vwv,VWV(8),0); /* reserved */
        SSVAL(req->out.vwv,VWV(9),parms->in.params.length);
        SSVAL(req->out.vwv,VWV(10),PTR_DIFF(outparam,req->out.hdr)+namelen);
-       SSVAL(req->out.vwv,VWV(11),parms->in.data.length);
+       SSVAL(req->out.vwv,VWV(11),data_length);
        SSVAL(req->out.vwv,VWV(12),PTR_DIFF(outdata,req->out.hdr)+namelen);
        SSVAL(req->out.vwv,VWV(13),parms->in.setup_count);
        for (i=0;i<parms->in.setup_count;i++)   {
@@ -257,22 +273,88 @@ struct smbcli_request *smb_raw_trans_send_backend(struct smbcli_tree *tree,
                smbcli_req_append_blob(req, &parms->in.params);
        }
        if (parms->in.data.data) {
-               smbcli_req_append_blob(req, &parms->in.data);
+               DATA_BLOB data;
+               data.data = parms->in.data.data;
+               data.length = data_length;
+               smbcli_req_append_blob(req, &data);
        }
 
        if (!smbcli_request_send(req)) {
                smbcli_request_destroy(req);
                return NULL;
        }
+
+       data_disp = data_length;
+
+
+       if (data_disp != parms->in.data.length) {
+               /* TODO: this should be done asynchronously .... */
+               if (!smbcli_request_receive(req) ||
+                   !NT_STATUS_IS_OK(req->status)) {
+                       return req;
+               }
+
+               req->state = SMBCLI_REQUEST_RECV;
+               DLIST_ADD(req->transport->pending_recv, req);
+       }
+
+
+       while (data_disp != parms->in.data.length) {
+               data_length = parms->in.data.length - data_disp;
+
+               max_data = smb_raw_max_trans_data(tree, 0);
+               if (max_data < data_length) {
+                       data_length = max_data;
+               }
+
+#if TORTURE_TRANS_DATA
+               if (data_length > 1) {
+                       data_length /= 2;
+               }
+#endif
+
+               req2 = smbcli_request_setup(tree, command+1, 9, data_length);
+               if (!req2) {
+                       return NULL;
+               }
+               req2->mid = req->mid;
+               SSVAL(req2->out.hdr, HDR_MID, req2->mid);
+
+               outdata = req2->out.data;
+
+               SSVAL(req2->out.vwv,VWV(0), parms->in.params.length);
+               SSVAL(req2->out.vwv,VWV(1), parms->in.data.length);
+               SSVAL(req2->out.vwv,VWV(2), 0);
+               SSVAL(req2->out.vwv,VWV(3), 0);
+               SSVAL(req2->out.vwv,VWV(4), 0);
+               SSVAL(req2->out.vwv,VWV(5), data_length);
+               SSVAL(req2->out.vwv,VWV(6), PTR_DIFF(outdata,req2->out.hdr));
+               SSVAL(req2->out.vwv,VWV(7), data_disp);
+               SSVAL(req2->out.vwv,VWV(8), 0xFFFF);
+
+               memcpy(req2->out.data, parms->in.data.data + data_disp, data_length);
+               
+               data_disp += data_length;
+
+               req2->one_way_request = 1;
+
+               if (!smbcli_request_send(req2)) {
+                       smbcli_request_destroy(req2);
+                       return NULL;
+               }
+
+               req->seq_num = req2->seq_num;
+       }
+       
        
        return req;
 }
 
-/****************************************************************************
- trans/trans2 raw async interface - only BLOBs used in this interface.
-note that this doesn't yet support multi-part requests
-****************************************************************************/
 
+/*
+  trans/trans2 raw async interface - only BLOBs used in this interface.
+  note that this doesn't yet support multi-part requests
+*/
 struct smbcli_request *smb_raw_trans_send(struct smbcli_tree *tree,
                                       struct smb_trans2 *parms)
 {
@@ -312,6 +394,7 @@ NTSTATUS smb_raw_trans(struct smbcli_tree *tree,
        return smb_raw_trans_recv(req, mem_ctx, parms);
 }
 
+
 /****************************************************************************
   receive a SMB nttrans response allocating the necessary memory
   ****************************************************************************/