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|
/* -*- mode:c; tab-width:8; c-basic-offset:8; indent-tabs-mode:nil; -*- */
/*
Copyright (C) 2018 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef STDC_HEADERS
#include <stddef.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_SYS_UNISTD_H
#include <sys/unistd.h>
#endif
#include <errno.h>
#include <stdio.h>
#include "compat.h"
#include "smb2.h"
#include "libsmb2.h"
#include "libsmb2-dcerpc.h"
#include "libsmb2-dcerpc-srvsvc.h"
#include "libsmb2-raw.h"
#include "libsmb2-private.h"
#define SRVSVC_UUID 0x4b324fc8, 0x1670, 0x01d3, {0x12, 0x78, 0x5a, 0x47, 0xbf, 0x6e, 0xe1, 0x88}
int dcerpc_get_cr(struct dcerpc_pdu *pdu);
p_syntax_id_t srvsvc_interface = {
{SRVSVC_UUID}, 3, 0
};
/*
* SRVSVC BEGIN: DEFINITIONS FROM SRVSVC.IDL
* [MS-SRVS].pdf
*/
/*
* typedef struct _SHARE_INFO_0 {
* [string] wchar_t * shi0_netname;
* } SHARE_INFO_0, *PSHARE_INFO_0, *LPSHARE_INFO_0;
*/
int
srvsvc_SHARE_INFO_0_coder(struct dcerpc_context *ctx,
struct dcerpc_pdu *pdu,
struct smb2_iovec *iov, int *offset,
void *ptr)
{
struct srvsvc_SHARE_INFO_0 *nsi1 = ptr;
if (dcerpc_ptr_coder(ctx, pdu, iov, offset, &nsi1->netname,
PTR_UNIQUE, dcerpc_utf16z_coder)) {
return -1;
}
return 0;
}
/*
* [size_is(EntriesRead)] LPSHARE_INFO_0 Buffer;
*/
static int
srvsvc_SHARE_INFO_0_carray_coder(struct dcerpc_context *ctx,
struct dcerpc_pdu *pdu,
struct smb2_iovec *iov, int *offset,
void *ptr)
{
return dcerpc_carray_coder(ctx, pdu, iov, offset, ptr,
sizeof(struct srvsvc_SHARE_INFO_0),
srvsvc_SHARE_INFO_0_coder);
}
/*
* typedef struct _SHARE_INFO_0_CONTAINER {
* DWORD EntriesRead;
* [size_is(EntriesRead)] LPSHARE_INFO_0 Buffer;
* } SHARE_INFO_0_CONTAINER;
*/
int
srvsvc_SHARE_INFO_0_CONTAINER_coder(struct dcerpc_context *dce, struct dcerpc_pdu *pdu,
struct smb2_iovec *iov, int *offset,
void *ptr)
{
struct srvsvc_SHARE_INFO_0_CONTAINER *ctr = ptr;
if (dcerpc_uint32_coder(dce, pdu, iov, offset, &ctr->EntriesRead)) {
return -1;
}
if (dcerpc_pdu_direction(pdu) == DCERPC_DECODE) {
if (ctr->Buffer == NULL) {
ctr->Buffer = smb2_alloc_data(
dcerpc_get_smb2_context(dce),
dcerpc_get_pdu_payload(pdu),
sizeof(struct srvsvc_SHARE_INFO_0_carray));
}
}
if (dcerpc_ptr_coder(dce, pdu, iov, offset,
ctr->Buffer,
PTR_UNIQUE,
srvsvc_SHARE_INFO_0_carray_coder)) {
return -1;
}
return 0;
}
/*
* typedef struct _SHARE_INFO_1 {
* [string] wchar_t *netname;
* DWORD shi1_type;
* [string] wchar_t *remark;
* } SHARE_INFO_1, *PSHARE_INFO_1, *LPSHARE_INFO_1;
*/
int
srvsvc_SHARE_INFO_1_coder(struct dcerpc_context *ctx,
struct dcerpc_pdu *pdu,
struct smb2_iovec *iov, int *offset,
void *ptr)
{
struct srvsvc_SHARE_INFO_1 *nsi1 = ptr;
if (dcerpc_ptr_coder(ctx, pdu, iov, offset, &nsi1->netname,
PTR_UNIQUE, dcerpc_utf16z_coder)) {
return -1;
}
if (dcerpc_uint32_coder(ctx, pdu, iov, offset, &nsi1->type)) {
return -1;
}
if (dcerpc_ptr_coder(ctx, pdu, iov, offset, &nsi1->remark,
PTR_UNIQUE, dcerpc_utf16z_coder)) {
return -1;
}
return 0;
}
/*
* [size_is(EntriesRead)] LPSHARE_INFO_1 Buffer;
*/
static int
srvsvc_SHARE_INFO_1_carray_coder(struct dcerpc_context *ctx,
struct dcerpc_pdu *pdu,
struct smb2_iovec *iov, int *offset,
void *ptr)
{
return dcerpc_carray_coder(ctx, pdu, iov, offset, ptr,
sizeof(struct srvsvc_SHARE_INFO_1),
srvsvc_SHARE_INFO_1_coder);
}
/*
* typedef struct _SHARE_INFO_1_CONTAINER {
* DWORD EntriesRead;
* [size_is(EntriesRead)] LPSHARE_INFO_1 Buffer;
* } SHARE_INFO_1_CONTAINER;
*/
int
srvsvc_SHARE_INFO_1_CONTAINER_coder(struct dcerpc_context *dce, struct dcerpc_pdu *pdu,
struct smb2_iovec *iov, int *offset,
void *ptr)
{
struct srvsvc_SHARE_INFO_1_CONTAINER *ctr = ptr;
if (dcerpc_uint32_coder(dce, pdu, iov, offset, &ctr->EntriesRead)) {
return -1;
}
if (dcerpc_pdu_direction(pdu) == DCERPC_DECODE) {
if (ctr->Buffer == NULL) {
ctr->Buffer = smb2_alloc_data(
dcerpc_get_smb2_context(dce),
dcerpc_get_pdu_payload(pdu),
sizeof(struct srvsvc_SHARE_INFO_1_carray));
}
}
if (dcerpc_ptr_coder(dce, pdu, iov, offset,
ctr->Buffer,
PTR_UNIQUE,
srvsvc_SHARE_INFO_1_carray_coder)) {
return -1;
}
return 0;
}
/*
* typedef [switch_type(DWORD)] union _SHARE_ENUM_UNION {
* [case(0)] SHARE_INFO_0_CONTAINER* Level0;
* [case(1)] SHARE_INFO_1_CONTAINER* Level1;
* [case(2)] SHARE_INFO_2_CONTAINER* Level2;
* [case(501)] SHARE_INFO_501_CONTAINER* Level501;
* [case(502)] SHARE_INFO_502_CONTAINER* Level502;
* [case(503)] SHARE_INFO_503_CONTAINER* Level503;
* } SHARE_ENUM_UNION;
*/
static int
srvsvc_SHARE_ENUM_UNION_coder(struct dcerpc_context *ctx, struct dcerpc_pdu *pdu,
struct smb2_iovec *iov, int *offset,
void *ptr)
{
struct srvsvc_SHARE_ENUM_UNION *ctr = ptr;
uint64_t p;
p = ctr->Level;
if (dcerpc_uint3264_coder(ctx, pdu, iov, offset, &p)) {
return -1;
}
ctr->Level = (uint32_t)p;
switch (ctr->Level) {
case 0:
if (dcerpc_ptr_coder(ctx, pdu, iov, offset, &ctr->Level0,
PTR_UNIQUE,
srvsvc_SHARE_INFO_0_CONTAINER_coder)) {
return -1;
}
break;
case 1:
if (dcerpc_ptr_coder(ctx, pdu, iov, offset, &ctr->Level1,
PTR_UNIQUE,
srvsvc_SHARE_INFO_1_CONTAINER_coder)) {
return -1;
}
break;
};
return 0;
}
/*
* typedef struct _SHARE_ENUM_STRUCT {
* DWORD Level;
* [switch_is(Level)] SHARE_ENUM_UNION ShareInfo;
* } SHARE_ENUM_STRUCT, *PSHARE_ENUM_STRUCT, *LPSHARE_ENUM_STRUCT;
*/
int
srvsvc_SHARE_ENUM_STRUCT_coder(struct dcerpc_context *ctx, struct dcerpc_pdu *pdu,
struct smb2_iovec *iov, int *offset,
void *ptr)
{
struct srvsvc_SHARE_ENUM_STRUCT *ses = ptr;
if (dcerpc_uint32_coder(ctx, pdu, iov, offset, &ses->Level)) {
return -1;
}
if (srvsvc_SHARE_ENUM_UNION_coder(ctx, pdu, iov, offset, &ses->ShareInfo)) {
return -1;
}
return 0;
}
/*****************
* Function: 0x0f
* NET_API_STATUS NetrShareEnum (
* [in,string,unique] SRVSVC_HANDLE ServerName,
* [in,out] LPSHARE_ENUM_STRUCT InfoStruct,
* [in] DWORD PreferedMaximumLength,
* [out] DWORD * TotalEntries,
* [in,out,unique] DWORD * ResumeHandle
* );
*/
int
srvsvc_NetrShareEnum_req_coder(struct dcerpc_context *ctx,
struct dcerpc_pdu *pdu,
struct smb2_iovec *iov, int *offset,
void *ptr)
{
struct srvsvc_NetrShareEnum_req *req = ptr;
if (dcerpc_ptr_coder(ctx, pdu, iov, offset, &req->ServerName,
PTR_UNIQUE, dcerpc_utf16z_coder)) {
return -1;
}
if (dcerpc_ptr_coder(ctx, pdu, iov, offset, &req->ses,
PTR_REF, srvsvc_SHARE_ENUM_STRUCT_coder)) {
return -1;
}
if (dcerpc_ptr_coder(ctx, pdu, iov, offset, &req->PreferedMaximumLength,
PTR_REF, dcerpc_uint32_coder)) {
return -1;
}
if (dcerpc_ptr_coder(ctx, pdu, iov, offset, &req->ResumeHandle,
PTR_UNIQUE, dcerpc_uint32_coder)) {
return -1;
}
return 0;
}
int
srvsvc_NetrShareEnum_rep_coder(struct dcerpc_context *dce,
struct dcerpc_pdu *pdu,
struct smb2_iovec *iov, int *offset,
void *ptr)
{
struct srvsvc_NetrShareEnum_rep *rep = ptr;
if (dcerpc_ptr_coder(dce, pdu, iov, offset, &rep->ses,
PTR_REF, srvsvc_SHARE_ENUM_STRUCT_coder)) {
return -1;
}
if (dcerpc_ptr_coder(dce, pdu, iov, offset, &rep->total_entries,
PTR_REF, dcerpc_uint32_coder)) {
return -1;
}
if (dcerpc_ptr_coder(dce, pdu, iov, offset, &rep->resume_handle,
PTR_UNIQUE, dcerpc_uint32_coder)) {
return -1;
}
if (dcerpc_uint32_coder(dce, pdu, iov, offset, &rep->status)) {
return -1;
}
return 0;
}
/*
* typedef [switch_type(unsigned long)] union _SHARE_INFO {
* [case(0)] LPSHARE_INFO_0 ShareInfo0;
* [case(1)] LPSHARE_INFO_1 ShareInfo1;
* [case(2)] LPSHARE_INFO_2 ShareInfo2;
* [case(502)] LPSHARE_INFO_502_I ShareInfo502;
* [case(1004)] LPSHARE_INFO_1004 ShareInfo1004;
* [case(1006)] LPSHARE_INFO_1006 ShareInfo1006;
* [case(1501)] LPSHARE_INFO_1501_I ShareInfo1501;
* [default];
* [case(1005)] LPSHARE_INFO_1005 ShareInfo1005;
* [case(501)] LPSHARE_INFO_501 ShareInfo501;
* [case(503)] LPSHARE_INFO_503_I ShareInfo503;
* } SHARE_INFO, *PSHARE_INFO, *LPSHARE_INFO;
*/
static int
srvsvc_SHARE_INFO_coder(struct dcerpc_context *ctx, struct dcerpc_pdu *pdu,
struct smb2_iovec *iov, int *offset,
void *ptr)
{
struct srvsvc_SHARE_INFO *info = ptr;
uint64_t p;
p = info->level;
if (dcerpc_uint3264_coder(ctx, pdu, iov, offset, &p)) {
return -1;
}
info->level = (uint32_t)p;
switch (info->level) {
case 1:
if (dcerpc_ptr_coder(ctx, pdu, iov, offset, &info->ShareInfo1,
PTR_UNIQUE,
srvsvc_SHARE_INFO_1_coder)) {
return -1;
}
break;
};
return 0;
}
/******************
* Function: 0x10
* NET_API_STATUS NetrShareGetInfo (
* [in,string,unique] SRVSVC_HANDLE ServerName,
* [in,string] WCHAR * NetName,
* [in] DWORD Level,
* [out, switch_is(Level)] LPSHARE_INFO InfoStruct
*/
int
srvsvc_NetrShareGetInfo_req_coder(struct dcerpc_context *dce,
struct dcerpc_pdu *pdu,
struct smb2_iovec *iov, int *offset,
void *ptr)
{
struct srvsvc_NetrShareGetInfo_req *req = ptr;
if (dcerpc_ptr_coder(dce, pdu, iov, offset, &req->ServerName,
PTR_UNIQUE, dcerpc_utf16z_coder)) {
return -1;
}
if (dcerpc_ptr_coder(dce, pdu, iov, offset,
discard_const(&req->NetName),
PTR_REF, dcerpc_utf16z_coder)) {
return -1;
}
if (dcerpc_uint32_coder(dce, pdu, iov, offset, &req->Level)) {
return -1;
}
return 0;
}
int
srvsvc_NetrShareGetInfo_rep_coder(struct dcerpc_context *dce,
struct dcerpc_pdu *pdu,
struct smb2_iovec *iov, int *offset,
void *ptr)
{
struct srvsvc_NetrShareGetInfo_rep *rep = ptr;
if (dcerpc_ptr_coder(dce, pdu, iov, offset, &rep->InfoStruct,
PTR_REF, srvsvc_SHARE_INFO_coder)) {
return -1;
}
if (dcerpc_uint32_coder(dce, pdu, iov, offset, &rep->status)) {
return -1;
}
return 0;
}
|
