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Diffstat (limited to 'source3/libsmb/clitrans.c')
-rw-r--r--source3/libsmb/clitrans.c96
1 files changed, 79 insertions, 17 deletions
diff --git a/source3/libsmb/clitrans.c b/source3/libsmb/clitrans.c
index 3d3cd427d7..e6771ac688 100644
--- a/source3/libsmb/clitrans.c
+++ b/source3/libsmb/clitrans.c
@@ -40,6 +40,7 @@ BOOL cli_send_trans(struct cli_state *cli, int trans,
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));
@@ -49,6 +50,7 @@ BOOL cli_send_trans(struct cli_state *cli, int trans,
SCVAL(cli->outbuf,smb_com,trans);
SSVAL(cli->outbuf,smb_tid, cli->cnum);
cli_setup_packet(cli);
+ mid = cli->mid;
if (pipe_name) {
pipe_name_len = clistr_push(cli, smb_buf(cli->outbuf), pipe_name, -1, STR_TERMINATE);
@@ -84,13 +86,19 @@ BOOL cli_send_trans(struct cli_state *cli, int trans,
cli_setup_bcc(cli, outdata+this_ldata);
show_msg(cli->outbuf);
- if (!cli_send_smb(cli))
+
+ cli_signing_trans_start(cli);
+ if (!cli_send_smb(cli)) {
+ cli_signing_trans_stop(cli);
return False;
+ }
if (this_ldata < ldata || this_lparam < lparam) {
/* receive interim response */
- if (!cli_receive_smb(cli) || cli_is_error(cli))
+ if (!cli_receive_smb(cli) || cli_is_error(cli)) {
+ cli_signing_trans_stop(cli);
return(False);
+ }
tot_data = this_ldata;
tot_param = this_lparam;
@@ -122,9 +130,15 @@ BOOL cli_send_trans(struct cli_state *cli, int trans,
memcpy(outdata,data+tot_data,this_ldata);
cli_setup_bcc(cli, outdata+this_ldata);
+ /* Ensure this packet has the same MID as
+ * the primary. Important in signing. JRA. */
+ cli->mid = mid;
+
show_msg(cli->outbuf);
- if (!cli_send_smb(cli))
+ if (!cli_send_smb(cli)) {
+ cli_signing_trans_stop(cli);
return False;
+ }
tot_data += this_ldata;
tot_param += this_lparam;
@@ -151,8 +165,10 @@ BOOL cli_receive_trans(struct cli_state *cli,int trans,
*data_len = *param_len = 0;
- if (!cli_receive_smb(cli))
+ if (!cli_receive_smb(cli)) {
+ cli_signing_trans_stop(cli);
return False;
+ }
show_msg(cli->inbuf);
@@ -161,6 +177,7 @@ BOOL cli_receive_trans(struct cli_state *cli,int trans,
DEBUG(0,("Expected %s response, got command 0x%02x\n",
trans==SMBtrans?"SMBtrans":"SMBtrans2",
CVAL(cli->inbuf,smb_com)));
+ cli_signing_trans_stop(cli);
return(False);
}
@@ -171,8 +188,10 @@ BOOL cli_receive_trans(struct cli_state *cli,int trans,
*/
status = cli_nt_error(cli);
- if (NT_STATUS_IS_ERR(status))
+ if (NT_STATUS_IS_ERR(status)) {
+ cli_signing_trans_stop(cli);
return False;
+ }
/* parse out the lengths */
total_data = SVAL(cli->inbuf,smb_tdrcnt);
@@ -183,6 +202,7 @@ BOOL cli_receive_trans(struct cli_state *cli,int trans,
tdata = Realloc(*data,total_data);
if (!tdata) {
DEBUG(0,("cli_receive_trans: failed to enlarge data buffer\n"));
+ cli_signing_trans_stop(cli);
return False;
}
else
@@ -193,6 +213,7 @@ BOOL cli_receive_trans(struct cli_state *cli,int trans,
tparam = Realloc(*param,total_param);
if (!tparam) {
DEBUG(0,("cli_receive_trans: failed to enlarge param buffer\n"));
+ cli_signing_trans_stop(cli);
return False;
}
else
@@ -206,6 +227,7 @@ BOOL cli_receive_trans(struct cli_state *cli,int trans,
if (this_data + *data_len > total_data ||
this_param + *param_len > total_param) {
DEBUG(1,("Data overflow in cli_receive_trans\n"));
+ cli_signing_trans_stop(cli);
return False;
}
@@ -214,6 +236,7 @@ BOOL cli_receive_trans(struct cli_state *cli,int trans,
this_param + *param_len < this_param ||
this_param + *param_len < *param_len) {
DEBUG(1,("Data overflow in cli_receive_trans\n"));
+ cli_signing_trans_stop(cli);
return False;
}
@@ -226,6 +249,7 @@ BOOL cli_receive_trans(struct cli_state *cli,int trans,
data_offset_out + this_data < data_offset_out ||
data_offset_out + this_data < this_data) {
DEBUG(1,("Data overflow in cli_receive_trans\n"));
+ cli_signing_trans_stop(cli);
return False;
}
if (data_offset_in > cli->bufsize ||
@@ -233,6 +257,7 @@ BOOL cli_receive_trans(struct cli_state *cli,int trans,
data_offset_in + this_data < data_offset_in ||
data_offset_in + this_data < this_data) {
DEBUG(1,("Data overflow in cli_receive_trans\n"));
+ cli_signing_trans_stop(cli);
return False;
}
@@ -247,6 +272,7 @@ BOOL cli_receive_trans(struct cli_state *cli,int trans,
param_offset_out + this_param < param_offset_out ||
param_offset_out + this_param < this_param) {
DEBUG(1,("Param overflow in cli_receive_trans\n"));
+ cli_signing_trans_stop(cli);
return False;
}
if (param_offset_in > cli->bufsize ||
@@ -254,6 +280,7 @@ BOOL cli_receive_trans(struct cli_state *cli,int trans,
param_offset_in + this_param < param_offset_in ||
param_offset_in + this_param < this_param) {
DEBUG(1,("Param overflow in cli_receive_trans\n"));
+ cli_signing_trans_stop(cli);
return False;
}
@@ -265,8 +292,10 @@ BOOL cli_receive_trans(struct cli_state *cli,int trans,
if (total_data <= *data_len && total_param <= *param_len)
break;
- if (!cli_receive_smb(cli))
- return False;
+ if (!cli_receive_smb(cli)) {
+ cli_signing_trans_stop(cli);
+ return False;
+ }
show_msg(cli->inbuf);
@@ -275,9 +304,11 @@ BOOL cli_receive_trans(struct cli_state *cli,int trans,
DEBUG(0,("Expected %s response, got command 0x%02x\n",
trans==SMBtrans?"SMBtrans":"SMBtrans2",
CVAL(cli->inbuf,smb_com)));
+ cli_signing_trans_stop(cli);
return(False);
}
if (NT_STATUS_IS_ERR(cli_nt_error(cli))) {
+ cli_signing_trans_stop(cli);
return(False);
}
@@ -292,6 +323,7 @@ BOOL cli_receive_trans(struct cli_state *cli,int trans,
}
+ cli_signing_trans_stop(cli);
return(True);
}
@@ -309,6 +341,7 @@ BOOL cli_send_nt_trans(struct cli_state *cli,
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 */
@@ -319,6 +352,7 @@ BOOL cli_send_nt_trans(struct cli_state *cli,
SCVAL(cli->outbuf,smb_com,SMBnttrans);
SSVAL(cli->outbuf,smb_tid, cli->cnum);
cli_setup_packet(cli);
+ mid = cli->mid;
outparam = smb_buf(cli->outbuf)+3;
outdata = outparam+this_lparam;
@@ -347,13 +381,18 @@ BOOL cli_send_nt_trans(struct cli_state *cli,
cli_setup_bcc(cli, outdata+this_ldata);
show_msg(cli->outbuf);
- if (!cli_send_smb(cli))
+ cli_signing_trans_start(cli);
+ if (!cli_send_smb(cli)) {
+ cli_signing_trans_stop(cli);
return False;
+ }
if (this_ldata < ldata || this_lparam < lparam) {
/* receive interim response */
- if (!cli_receive_smb(cli) || cli_is_error(cli))
+ if (!cli_receive_smb(cli) || cli_is_error(cli)) {
+ cli_signing_trans_stop(cli);
return(False);
+ }
tot_data = this_ldata;
tot_param = this_lparam;
@@ -384,9 +423,16 @@ BOOL cli_send_nt_trans(struct cli_state *cli,
memcpy(outdata,data+tot_data,this_ldata);
cli_setup_bcc(cli, outdata+this_ldata);
+ /* Ensure this packet has the same MID as
+ * the primary. Important in signing. JRA. */
+ cli->mid = mid;
+
show_msg(cli->outbuf);
- if (!cli_send_smb(cli))
+
+ if (!cli_send_smb(cli)) {
+ cli_signing_trans_stop(cli);
return False;
+ }
tot_data += this_ldata;
tot_param += this_lparam;
@@ -396,8 +442,6 @@ BOOL cli_send_nt_trans(struct cli_state *cli,
return(True);
}
-
-
/****************************************************************************
receive a SMB nttrans response allocating the necessary memory
****************************************************************************/
@@ -416,8 +460,10 @@ BOOL cli_receive_nt_trans(struct cli_state *cli,
*data_len = *param_len = 0;
- if (!cli_receive_smb(cli))
+ if (!cli_receive_smb(cli)) {
+ cli_signing_trans_stop(cli);
return False;
+ }
show_msg(cli->inbuf);
@@ -425,6 +471,7 @@ BOOL cli_receive_nt_trans(struct cli_state *cli,
if (CVAL(cli->inbuf,smb_com) != SMBnttrans) {
DEBUG(0,("Expected SMBnttrans response, got command 0x%02x\n",
CVAL(cli->inbuf,smb_com)));
+ cli_signing_trans_stop(cli);
return(False);
}
@@ -435,8 +482,10 @@ BOOL cli_receive_nt_trans(struct cli_state *cli,
*/
if (cli_is_dos_error(cli)) {
cli_dos_error(cli, &eclass, &ecode);
- if (cli->nt_pipe_fnum == 0 || !(eclass == ERRDOS && ecode == ERRmoredata))
+ if (cli->nt_pipe_fnum == 0 || !(eclass == ERRDOS && ecode == ERRmoredata)) {
+ cli_signing_trans_stop(cli);
return(False);
+ }
}
/* parse out the lengths */
@@ -448,6 +497,7 @@ BOOL cli_receive_nt_trans(struct cli_state *cli,
tdata = Realloc(*data,total_data);
if (!tdata) {
DEBUG(0,("cli_receive_nt_trans: failed to enlarge data buffer to %d\n",total_data));
+ cli_signing_trans_stop(cli);
return False;
} else {
*data = tdata;
@@ -458,6 +508,7 @@ BOOL cli_receive_nt_trans(struct cli_state *cli,
tparam = Realloc(*param,total_param);
if (!tparam) {
DEBUG(0,("cli_receive_nt_trans: failed to enlarge param buffer to %d\n", total_param));
+ cli_signing_trans_stop(cli);
return False;
} else {
*param = tparam;
@@ -471,6 +522,7 @@ BOOL cli_receive_nt_trans(struct cli_state *cli,
if (this_data + *data_len > total_data ||
this_param + *param_len > total_param) {
DEBUG(1,("Data overflow in cli_receive_nt_trans\n"));
+ cli_signing_trans_stop(cli);
return False;
}
@@ -479,6 +531,7 @@ BOOL cli_receive_nt_trans(struct cli_state *cli,
this_param + *param_len < this_param ||
this_param + *param_len < *param_len) {
DEBUG(1,("Data overflow in cli_receive_nt_trans\n"));
+ cli_signing_trans_stop(cli);
return False;
}
@@ -491,6 +544,7 @@ BOOL cli_receive_nt_trans(struct cli_state *cli,
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"));
+ cli_signing_trans_stop(cli);
return False;
}
if (data_offset_in > cli->bufsize ||
@@ -498,6 +552,7 @@ BOOL cli_receive_nt_trans(struct cli_state *cli,
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"));
+ cli_signing_trans_stop(cli);
return False;
}
@@ -513,6 +568,7 @@ BOOL cli_receive_nt_trans(struct cli_state *cli,
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"));
+ cli_signing_trans_stop(cli);
return False;
}
if (param_offset_in > cli->bufsize ||
@@ -520,6 +576,7 @@ BOOL cli_receive_nt_trans(struct cli_state *cli,
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"));
+ cli_signing_trans_stop(cli);
return False;
}
@@ -532,8 +589,10 @@ BOOL cli_receive_nt_trans(struct cli_state *cli,
if (total_data <= *data_len && total_param <= *param_len)
break;
- if (!cli_receive_smb(cli))
+ if (!cli_receive_smb(cli)) {
+ cli_signing_trans_stop(cli);
return False;
+ }
show_msg(cli->inbuf);
@@ -541,13 +600,15 @@ BOOL cli_receive_nt_trans(struct cli_state *cli,
if (CVAL(cli->inbuf,smb_com) != SMBnttrans) {
DEBUG(0,("Expected SMBnttrans response, got command 0x%02x\n",
CVAL(cli->inbuf,smb_com)));
+ cli_signing_trans_stop(cli);
return(False);
}
if (cli_is_dos_error(cli)) {
cli_dos_error(cli, &eclass, &ecode);
- if(cli->nt_pipe_fnum == 0 ||
- !(eclass == ERRDOS && ecode == ERRmoredata))
+ if(cli->nt_pipe_fnum == 0 || !(eclass == ERRDOS && ecode == ERRmoredata)) {
+ cli_signing_trans_stop(cli);
return(False);
+ }
}
/* parse out the total lengths again - they can shrink! */
if (SVAL(cli->inbuf,smb_ntr_TotalDataCount) < total_data)
@@ -559,5 +620,6 @@ BOOL cli_receive_nt_trans(struct cli_state *cli,
break;
}
+ cli_signing_trans_stop(cli);
return(True);
}
generated by cgit (git 2.34.1) at 2024-11-15 13:17:43 +0000