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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 "scripting/ejs/ejsrpc.h"
NTSTATUS ejs_pull_rpc(int eid, const char *callname,
struct MprVar *v, void *ptr, ejs_pull_function_t ejs_pull)
{
struct ejs_rpc *ejs = talloc(ptr, struct ejs_rpc);
NT_STATUS_HAVE_NO_MEMORY(ejs);
ejs->eid = eid;
ejs->callname = callname;
return ejs_pull(ejs, v, ptr);
}
NTSTATUS ejs_push_rpc(int eid, const char *callname,
struct MprVar *v, const void *ptr, ejs_push_function_t ejs_push)
{
struct ejs_rpc *ejs = talloc(ptr, struct ejs_rpc);
NT_STATUS_HAVE_NO_MEMORY(ejs);
ejs->eid = eid;
ejs->callname = callname;
return ejs_push(ejs, v, ptr);
}
/*
set the switch var to be used by the next union switch
*/
void ejs_set_switch(struct ejs_rpc *ejs, uint32_t switch_var)
{
ejs->switch_var = switch_var;
}
/*
panic in the ejs wrapper code
*/
NTSTATUS ejs_panic(struct ejs_rpc *ejs, const char *why)
{
ejsSetErrorMsg(ejs->eid, "rpc_call '%s' failed - %s", ejs->callname, why);
return NT_STATUS_INTERNAL_ERROR;
}
/*
find a mpr component, allowing for sub objects, using the '.' convention
*/
static struct MprVar *mprGetVar(struct MprVar *v, const char *name)
{
const char *p = strchr(name, '.');
char *objname;
struct MprVar *v2;
if (p == NULL) {
return mprGetProperty(v, name, NULL);
}
objname = talloc_strndup(mprMemCtx(), name, p-name);
if (objname == NULL) {
return NULL;
}
v2 = mprGetProperty(v, objname, NULL);
if (v2 == NULL) {
talloc_free(objname);
return NULL;
}
v2 = mprGetVar(v2, p+1);
talloc_free(objname);
return v2;
}
/*
set a mpr component, allowing for sub objects, using the '.' convention
*/
static NTSTATUS mprSetVar(struct MprVar *v, const char *name, struct MprVar val)
{
const char *p = strchr(name, '.');
char *objname;
struct MprVar *v2;
NTSTATUS status;
if (p == NULL) {
v2 = mprSetProperty(v, name, &val);
if (v2 == NULL) {
return NT_STATUS_INVALID_PARAMETER_MIX;
}
return NT_STATUS_OK;
}
objname = talloc_strndup(mprMemCtx(), name, p-name);
if (objname == NULL) {
return NT_STATUS_NO_MEMORY;
}
v2 = mprGetProperty(v, objname, NULL);
if (v2 == NULL) {
struct MprVar val2 = mprCreateObjVar(objname, MPR_DEFAULT_HASH_SIZE);
v2 = mprCreateProperty(v, objname, &val2);
}
status = mprSetVar(v2, p+1, val);
talloc_free(objname);
return status;
}
/*
start the ejs pull process for a structure
*/
NTSTATUS ejs_pull_struct_start(struct ejs_rpc *ejs, struct MprVar **v, const char *name)
{
*v = mprGetProperty(*v, name, NULL);
if (*v == NULL) {
return NT_STATUS_INVALID_PARAMETER;
}
return NT_STATUS_OK;
}
/*
start the ejs push process for a structure
*/
NTSTATUS ejs_push_struct_start(struct ejs_rpc *ejs, struct MprVar **v, const char *name)
{
struct MprVar s = mprCreateObjVar(name, MPR_DEFAULT_HASH_SIZE);
*v = mprSetProperty(*v, name, &s);
if (*v == NULL) {
return NT_STATUS_INVALID_PARAMETER;
}
return NT_STATUS_OK;
}
/*
pull a uint8 from a mpr variable to a C element
*/
NTSTATUS ejs_pull_uint8(struct ejs_rpc *ejs,
struct MprVar *v, const char *name, uint8_t *r)
{
struct MprVar *var;
var = mprGetVar(v, name);
if (var == NULL) {
return NT_STATUS_INVALID_PARAMETER_MIX;
}
*r = mprVarToInteger(var);
return NT_STATUS_OK;
}
NTSTATUS ejs_push_uint8(struct ejs_rpc *ejs,
struct MprVar *v, const char *name, const uint8_t *r)
{
return mprSetVar(v, name, mprCreateIntegerVar(*r));
}
/*
pull a uint16 from a mpr variable to a C element
*/
NTSTATUS ejs_pull_uint16(struct ejs_rpc *ejs,
struct MprVar *v, const char *name, uint16_t *r)
{
struct MprVar *var;
var = mprGetVar(v, name);
if (var == NULL) {
return NT_STATUS_INVALID_PARAMETER_MIX;
}
*r = mprVarToInteger(var);
return NT_STATUS_OK;
}
NTSTATUS ejs_push_uint16(struct ejs_rpc *ejs,
struct MprVar *v, const char *name, const uint16_t *r)
{
return mprSetVar(v, name, mprCreateIntegerVar(*r));
}
/*
pull a uint32 from a mpr variable to a C element
*/
NTSTATUS ejs_pull_uint32(struct ejs_rpc *ejs,
struct MprVar *v, const char *name, uint32_t *r)
{
struct MprVar *var;
var = mprGetVar(v, name);
if (var == NULL) {
return NT_STATUS_INVALID_PARAMETER_MIX;
}
*r = mprVarToInteger(var);
return NT_STATUS_OK;
}
NTSTATUS ejs_push_uint32(struct ejs_rpc *ejs,
struct MprVar *v, const char *name, const uint32_t *r)
{
return mprSetVar(v, name, mprCreateIntegerVar(*r));
}
NTSTATUS ejs_pull_hyper(struct ejs_rpc *ejs,
struct MprVar *v, const char *name, uint64_t *r)
{
struct MprVar *var;
var = mprGetVar(v, name);
if (var == NULL) {
return NT_STATUS_INVALID_PARAMETER_MIX;
}
*r = mprVarToInteger(var);
return NT_STATUS_OK;
}
NTSTATUS ejs_push_hyper(struct ejs_rpc *ejs,
struct MprVar *v, const char *name, const uint64_t *r)
{
return mprSetVar(v, name, mprCreateIntegerVar(*r));
}
/*
pull a enum from a mpr variable to a C element
a enum is just treating as an unsigned integer at this level
*/
NTSTATUS ejs_pull_enum(struct ejs_rpc *ejs,
struct MprVar *v, const char *name, unsigned *r)
{
struct MprVar *var;
var = mprGetVar(v, name);
if (var == NULL) {
return NT_STATUS_INVALID_PARAMETER_MIX;
}
*r = mprVarToInteger(var);
return NT_STATUS_OK;
}
NTSTATUS ejs_push_enum(struct ejs_rpc *ejs,
struct MprVar *v, const char *name, const unsigned *r)
{
return mprSetVar(v, name, mprCreateIntegerVar(*r));
}
/*
pull an array of elements
*/
NTSTATUS ejs_pull_array(struct ejs_rpc *ejs,
struct MprVar *v, const char *name, uint32_t length,
size_t elsize, void **r, ejs_pull_t ejs_pull)
{
int i;
char *data;
NDR_CHECK(ejs_pull_struct_start(ejs, &v, name));
(*r) = talloc_array_size(ejs, elsize, length);
NT_STATUS_HAVE_NO_MEMORY(*r);
data = *r;
for (i=0;i<length;i++) {
char *id = talloc_asprintf(ejs, "%u", i);
NT_STATUS_HAVE_NO_MEMORY(id);
NDR_CHECK(ejs_pull(ejs, v, id, (i*elsize)+data));
talloc_free(id);
}
return NT_STATUS_OK;
}
/*
pull a string
*/
NTSTATUS ejs_pull_string(struct ejs_rpc *ejs,
struct MprVar *v, const char *name, char **s)
{
struct MprVar *var;
var = mprGetVar(v, name);
if (var == NULL) {
return NT_STATUS_INVALID_PARAMETER_MIX;
}
*s = mprToString(var);
return NT_STATUS_OK;
}
/*
push a string
*/
NTSTATUS ejs_push_string(struct ejs_rpc *ejs,
struct MprVar *v, const char *name, const char *s)
{
return mprSetVar(v, name, mprCreateStringVar(s, True));
}
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