void reply_pipe_read_and_X(struct smb_request *req)
{
smb_np_struct *p = get_rpc_pipe_p(SVAL(req->inbuf,smb_vwv2));
int smb_maxcnt = SVAL(req->inbuf,smb_vwv5);
int smb_mincnt = SVAL(req->inbuf,smb_vwv6);
int nread = -1;
char *data;
bool unused;
/* we don't use the offset given to use for pipe reads. This
is deliberate, instead we always return the next lump of
data on the pipe */
#if 0
uint32 smb_offs = IVAL(req->inbuf,smb_vwv3);
#endif
if (!p) {
reply_doserror(req, ERRDOS, ERRbadfid);
return;
}
reply_outbuf(req, 12, smb_maxcnt);
data = smb_buf(req->outbuf);
nread = read_from_pipe(p, data, smb_maxcnt, &unused);
if (nread < 0) {
reply_doserror(req, ERRDOS, ERRnoaccess);
return;
}
srv_set_message((char *)req->outbuf, 12, nread, False);
SSVAL(req->outbuf,smb_vwv5,nread);
SSVAL(req->outbuf,smb_vwv6,smb_offset(data,req->outbuf));
SSVAL(smb_buf(req->outbuf),-2,nread);
DEBUG(3,("readX-IPC pnum=%04x min=%d max=%d nread=%d\n",
p->pnum, smb_mincnt, smb_maxcnt, nread));
chain_reply(req);
}
void reply_pipe_close(connection_struct *conn, struct smb_request *req)
{
smb_np_struct *p = get_rpc_pipe_p(SVAL(req->inbuf,smb_vwv0));
if (!p) {
reply_doserror(req, ERRDOS, ERRbadfid);
return;
}
DEBUG(5,("reply_pipe_close: pnum:%x\n", p->pnum));
if (!close_rpc_pipe_hnd(p)) {
reply_doserror(req, ERRDOS, ERRbadfid);
return;
}
/* TODO: REMOVE PIPE FROM DB */
reply_outbuf(req, 0, 0);
return;
}
void reply_pipe_write(struct smb_request *req)
{
smb_np_struct *p = get_rpc_pipe_p(SVAL(req->inbuf,smb_vwv0));
size_t numtowrite = SVAL(req->inbuf,smb_vwv1);
int nwritten;
char *data;
if (!p) {
reply_doserror(req, ERRDOS, ERRbadfid);
return;
}
if (p->vuid != req->vuid) {
reply_nterror(req, NT_STATUS_INVALID_HANDLE);
return;
}
data = smb_buf(req->inbuf) + 3;
if (numtowrite == 0) {
nwritten = 0;
} else {
nwritten = write_to_pipe(p, data, numtowrite);
}
if ((nwritten == 0 && numtowrite != 0) || (nwritten < 0)) {
reply_unixerror(req, ERRDOS, ERRnoaccess);
return;
}
reply_outbuf(req, 1, 0);
SSVAL(req->outbuf,smb_vwv0,nwritten);
DEBUG(3,("write-IPC pnum=%04x nwritten=%d\n", p->pnum, nwritten));
return;
}
void reply_open_pipe_and_X(connection_struct *conn, struct smb_request *req)
{
const char *fname = NULL;
char *pipe_name = NULL;
files_struct *fsp;
TALLOC_CTX *ctx = talloc_tos();
NTSTATUS status;
/* XXXX we need to handle passed times, sattr and flags */
srvstr_pull_req_talloc(ctx, req, &pipe_name, req->buf, STR_TERMINATE);
if (!pipe_name) {
reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
ERRDOS, ERRbadpipe);
return;
}
/* If the name doesn't start \PIPE\ then this is directed */
/* at a mailslot or something we really, really don't understand, */
/* not just something we really don't understand. */
if ( strncmp(pipe_name,PIPE,PIPELEN) != 0 ) {
reply_doserror(req, ERRSRV, ERRaccess);
return;
}
DEBUG(4,("Opening pipe %s.\n", pipe_name));
/* Strip \PIPE\ off the name. */
fname = pipe_name + PIPELEN;
#if 0
/*
* Hack for NT printers... JRA.
*/
if(should_fail_next_srvsvc_open(fname)) {
reply_doserror(req, ERRSRV, ERRaccess);
return;
}
#endif
status = open_np_file(req, fname, &fsp);
if (!NT_STATUS_IS_OK(status)) {
if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
ERRDOS, ERRbadpipe);
return;
}
reply_nterror(req, status);
return;
}
/* Prepare the reply */
reply_outbuf(req, 15, 0);
/* Mark the opened file as an existing named pipe in message mode. */
SSVAL(req->outbuf,smb_vwv9,2);
SSVAL(req->outbuf,smb_vwv10,0xc700);
SSVAL(req->outbuf, smb_vwv2, fsp->fnum);
SSVAL(req->outbuf, smb_vwv3, 0); /* fmode */
srv_put_dos_date3((char *)req->outbuf, smb_vwv4, 0); /* mtime */
SIVAL(req->outbuf, smb_vwv6, 0); /* size */
SSVAL(req->outbuf, smb_vwv8, 0); /* rmode */
SSVAL(req->outbuf, smb_vwv11, 0x0001);
chain_reply(req);
return;
}
void reply_open_pipe_and_X(connection_struct *conn, struct smb_request *req)
{
const char *fname = NULL;
char *pipe_name = NULL;
smb_np_struct *p;
int size=0,fmode=0,mtime=0,rmode=0;
int i;
TALLOC_CTX *ctx = talloc_tos();
/* XXXX we need to handle passed times, sattr and flags */
srvstr_pull_buf_talloc(ctx, req->inbuf, req->flags2, &pipe_name,
smb_buf(req->inbuf), STR_TERMINATE);
if (!pipe_name) {
reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
ERRDOS, ERRbadpipe);
return;
}
/* If the name doesn't start \PIPE\ then this is directed */
/* at a mailslot or something we really, really don't understand, */
/* not just something we really don't understand. */
if ( strncmp(pipe_name,PIPE,PIPELEN) != 0 ) {
reply_doserror(req, ERRSRV, ERRaccess);
return;
}
DEBUG(4,("Opening pipe %s.\n", pipe_name));
/* See if it is one we want to handle. */
for( i = 0; pipe_names[i].client_pipe ; i++ ) {
if( strequal(pipe_name,pipe_names[i].client_pipe)) {
break;
}
}
if (pipe_names[i].client_pipe == NULL) {
reply_botherror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND,
ERRDOS, ERRbadpipe);
return;
}
/* Strip \PIPE\ off the name. */
fname = pipe_name + PIPELEN;
#if 0
/*
* Hack for NT printers... JRA.
*/
if(should_fail_next_srvsvc_open(fname)) {
reply_doserror(req, ERRSRV, ERRaccess);
return;
}
#endif
/* Known pipes arrive with DIR attribs. Remove it so a regular file */
/* can be opened and add it in after the open. */
DEBUG(3,("Known pipe %s opening.\n",fname));
p = open_rpc_pipe_p(fname, conn, req->vuid);
if (!p) {
reply_doserror(req, ERRSRV, ERRnofids);
return;
}
/* Prepare the reply */
reply_outbuf(req, 15, 0);
/* Mark the opened file as an existing named pipe in message mode. */
SSVAL(req->outbuf,smb_vwv9,2);
SSVAL(req->outbuf,smb_vwv10,0xc700);
if (rmode == 2) {
DEBUG(4,("Resetting open result to open from create.\n"));
rmode = 1;
}
SSVAL(req->outbuf,smb_vwv2, p->pnum);
SSVAL(req->outbuf,smb_vwv3,fmode);
srv_put_dos_date3((char *)req->outbuf,smb_vwv4,mtime);
SIVAL(req->outbuf,smb_vwv6,size);
SSVAL(req->outbuf,smb_vwv8,rmode);
SSVAL(req->outbuf,smb_vwv11,0x0001);
chain_reply(req);
return;
}
void reply_pipe_write_and_X(struct smb_request *req)
{
smb_np_struct *p = get_rpc_pipe_p(SVAL(req->inbuf,smb_vwv2));
size_t numtowrite = SVAL(req->inbuf,smb_vwv10);
int nwritten = -1;
int smb_doff = SVAL(req->inbuf, smb_vwv11);
bool pipe_start_message_raw =
((SVAL(req->inbuf, smb_vwv7)
& (PIPE_START_MESSAGE|PIPE_RAW_MODE))
== (PIPE_START_MESSAGE|PIPE_RAW_MODE));
char *data;
if (!p) {
reply_doserror(req, ERRDOS, ERRbadfid);
return;
}
if (p->vuid != req->vuid) {
reply_nterror(req, NT_STATUS_INVALID_HANDLE);
return;
}
data = smb_base(req->inbuf) + smb_doff;
if (numtowrite == 0) {
nwritten = 0;
} else {
if(pipe_start_message_raw) {
/*
* For the start of a message in named pipe byte mode,
* the first two bytes are a length-of-pdu field. Ignore
* them (we don't trust the client). JRA.
*/
if(numtowrite < 2) {
DEBUG(0,("reply_pipe_write_and_X: start of "
"message set and not enough data "
"sent.(%u)\n",
(unsigned int)numtowrite ));
reply_unixerror(req, ERRDOS, ERRnoaccess);
return;
}
data += 2;
numtowrite -= 2;
}
nwritten = write_to_pipe(p, data, numtowrite);
}
if ((nwritten == 0 && numtowrite != 0) || (nwritten < 0)) {
reply_unixerror(req, ERRDOS,ERRnoaccess);
return;
}
reply_outbuf(req, 6, 0);
nwritten = (pipe_start_message_raw ? nwritten + 2 : nwritten);
SSVAL(req->outbuf,smb_vwv2,nwritten);
DEBUG(3,("writeX-IPC pnum=%04x nwritten=%d\n", p->pnum, nwritten));
chain_reply(req);
}
