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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"
struct smb2nse {
smb2_command_cb cb;
void *cb_data;
union {
struct srvsvc_NetrShareEnum_req se_req;
};
};
static void
nse_free(struct smb2nse *nse)
{
free(discard_const(nse->se_req.ServerName.utf8));
free(nse);
}
static void
srvsvc_ioctl_cb(struct dcerpc_context *dce, int status,
void *command_data, void *cb_data)
{
struct smb2nse *nse = cb_data;
struct srvsvc_rep *rep = command_data;
struct smb2_context *smb2 = dcerpc_get_smb2_context(dce);
if (status != SMB2_STATUS_SUCCESS) {
nse->cb(smb2, status, NULL, nse->cb_data);
nse_free(nse);
dcerpc_destroy_context(dce);
return;
}
nse->cb(smb2, rep->status, rep, nse->cb_data);
nse_free(nse);
dcerpc_destroy_context(dce);
}
static void
share_enum_bind_cb(struct dcerpc_context *dce, int status,
void *command_data, void *cb_data)
{
struct smb2nse *nse = cb_data;
struct smb2_context *smb2 = dcerpc_get_smb2_context(dce);
if (status != SMB2_STATUS_SUCCESS) {
nse->cb(smb2, status, NULL, nse->cb_data);
nse_free(nse);
dcerpc_destroy_context(dce);
return;
}
status = dcerpc_call_async(dce,
SRVSVC_NETRSHAREENUM,
srvsvc_NetrShareEnum_req_coder, &nse->se_req,
srvsvc_NetrShareEnum_rep_coder,
sizeof(struct srvsvc_NetrShareEnum_rep),
srvsvc_ioctl_cb, nse);
if (status) {
nse->cb(smb2, status, NULL, nse->cb_data);
nse_free(nse);
dcerpc_destroy_context(dce);
return;
}
}
int
smb2_share_enum_async(struct smb2_context *smb2,
enum SHARE_INFO_enum level,
smb2_command_cb cb, void *cb_data)
{
struct dcerpc_context *dce;
struct smb2nse *nse;
int rc;
char *server;
dce = dcerpc_create_context(smb2);
if (dce == NULL) {
return -ENOMEM;
}
nse = calloc(1, sizeof(struct smb2nse));
if (nse == NULL) {
smb2_set_error(smb2, "Failed to allocate nse");
dcerpc_destroy_context(dce);
return -ENOMEM;
}
nse->cb = cb;
nse->cb_data = cb_data;
server = malloc(strlen(smb2->server) + 3);
if (server == NULL) {
free(nse);
smb2_set_error(smb2, "Failed to allocate server");
dcerpc_destroy_context(dce);
return -ENOMEM;
}
sprintf(server, "\\\\%s", smb2->server);
nse->se_req.ServerName.utf8 = server;
switch (level) {
case SHARE_INFO_0:
nse->se_req.ses.Level = level;
nse->se_req.ses.ShareInfo.Level = level;
nse->se_req.ses.ShareInfo.Level0.EntriesRead = 0;
nse->se_req.ses.ShareInfo.Level0.Buffer = NULL;
break;
case SHARE_INFO_1:
nse->se_req.ses.Level = level;
nse->se_req.ses.ShareInfo.Level = level;
nse->se_req.ses.ShareInfo.Level1.EntriesRead = 0;
nse->se_req.ses.ShareInfo.Level1.Buffer = NULL;
break;
}
nse->se_req.PreferedMaximumLength = 0xffffffff;
nse->se_req.ResumeHandle = 0;
rc = dcerpc_connect_context_async(dce, "srvsvc", &srvsvc_interface,
share_enum_bind_cb, nse);
if (rc) {
nse_free(nse);
dcerpc_destroy_context(dce);
return rc;
}
return 0;
}
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