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/*
Unix SMB/CIFS implementation.
provide interfaces to rpc calls from ejs scripts
Copyright (C) Andrew Tridgell 2005
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
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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.
*/
#include "includes.h"
#include "lib/ejs/ejs.h"
#include "librpc/gen_ndr/ndr_echo.h"
#include "lib/cmdline/popt_common.h"
#include "scripting/ejs/ejsrpc.h"
/*
connect to an rpc server
example:
var conn = new Object();
status = rpc_connect(conn, "ncacn_ip_tcp:localhost", "rpcecho");
*/
static int ejs_rpc_connect(MprVarHandle eid, int argc, struct MprVar **argv)
{
const char *binding, *pipe_name;
const struct dcerpc_interface_table *iface;
NTSTATUS status;
struct dcerpc_pipe *p;
struct MprVar *conn;
/* validate arguments */
if (argc != 3 ||
argv[0]->type != MPR_TYPE_OBJECT ||
argv[1]->type != MPR_TYPE_STRING ||
argv[2]->type != MPR_TYPE_STRING) {
ejsSetErrorMsg(eid, "rpc_connect invalid arguments");
return -1;
}
conn = argv[0];
binding = mprToString(argv[1]);
pipe_name = mprToString(argv[2]);
iface = idl_iface_by_name(pipe_name);
if (iface == NULL) {
status = NT_STATUS_OBJECT_NAME_INVALID;
goto done;
}
status = dcerpc_pipe_connect(mprMemCtx(), &p, binding,
iface->uuid, iface->if_version,
cmdline_credentials, NULL);
if (!NT_STATUS_IS_OK(status)) goto done;
/* callers don't allocate ref vars in the ejs interface */
p->conn->flags |= DCERPC_NDR_REF_ALLOC;
mprSetPtr(conn, "pipe", p);
mprSetPtr(conn, "iface", iface);
done:
ejsSetReturnValue(eid, mprNTSTATUS(status));
return 0;
}
/*
make an rpc call
example:
status = rpc_call(conn, "echo_AddOne", io);
*/
static int ejs_rpc_call(MprVarHandle eid, int argc, struct MprVar **argv)
{
struct MprVar *conn, *io;
const struct dcerpc_interface_table *iface;
struct dcerpc_pipe *p;
const char *callname;
const struct dcerpc_interface_call *call;
NTSTATUS status;
void *ptr;
struct rpc_request *req;
int callnum;
if (argc != 3 ||
argv[0]->type != MPR_TYPE_OBJECT ||
argv[1]->type != MPR_TYPE_STRING ||
argv[2]->type != MPR_TYPE_OBJECT) {
ejsSetErrorMsg(eid, "rpc_call invalid arguments");
return -1;
}
conn = argv[0];
callname = mprToString(argv[1]);
io = argv[2];
/* get the pipe info */
p = mprGetPtr(conn, "pipe");
iface = mprGetPtr(conn, "iface");
if (p == NULL || iface == NULL) {
ejsSetErrorMsg(eid, "rpc_call invalid pipe");
return -1;
}
/* find the call by name */
call = dcerpc_iface_find_call(iface, callname);
if (call == NULL) {
status = NT_STATUS_OBJECT_NAME_INVALID;
goto done;
}
callnum = call - iface->calls;
/* allocate the C structure */
ptr = talloc_zero_size(mprMemCtx(), call->struct_size);
if (ptr == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
/* convert the mpr object into a C structure */
status = ejs_pull_rpc(io, ptr, (ejs_pull_function_t)ejs_pull_echo_AddOne);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
/* if requested, print the structure */
if (p->conn->flags & DCERPC_DEBUG_PRINT_IN) {
ndr_print_function_debug(call->ndr_print, call->name, NDR_IN, ptr);
}
/* make the actual call */
req = dcerpc_ndr_request_send(p, NULL, iface, callnum, ptr, ptr);
if (req == NULL) {
status = NT_STATUS_NO_MEMORY;
talloc_free(ptr);
goto done;
}
status = dcerpc_ndr_request_recv(req);
/* print the 'out' structure, if needed */
if (p->conn->flags & DCERPC_DEBUG_PRINT_OUT) {
ndr_print_function_debug(call->ndr_print, call->name, NDR_OUT, ptr);
}
status = ejs_push_rpc(io, ptr, (ejs_push_function_t)ejs_push_echo_AddOne);
talloc_free(ptr);
done:
ejsSetReturnValue(eid, mprNTSTATUS(status));
return 0;
}
/*
setup C functions that be called from ejs
*/
void smb_setup_ejs_rpc(void)
{
ejsDefineCFunction(-1, "rpc_connect", ejs_rpc_connect, NULL, MPR_VAR_SCRIPT_HANDLE);
ejsDefineCFunction(-1, "rpc_call", ejs_rpc_call, NULL, MPR_VAR_SCRIPT_HANDLE);
}
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