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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "sandbox/src/restricted_token_utils.h"
// launcher.exe is an application used to launch another application with a
// restricted token. This is to be used for testing only.
// The parameters are the level of security of the primary token, the
// impersonation token and the job object along with the command line to
// execute.
// See the usage (launcher.exe without parameters) for the correct format.
#define PARAM_IS(y) (argc > i) && (_wcsicmp(argv[i], y) == 0)
void PrintUsage(const wchar_t *application_name) {
wprintf(L"\n\nUsage: \n %s --main level --init level --job level cmd_line ",
application_name);
wprintf(L"\n\n Levels : \n\tLOCKDOWN \n\tRESTRICTED "
L"\n\tLIMITED_USER \n\tINTERACTIVE_USER \n\tNON_ADMIN \n\tUNPROTECTED");
wprintf(L"\n\n main: Security level of the main token");
wprintf(L"\n init: Security level of the impersonation token");
wprintf(L"\n job: Security level of the job object");
}
bool GetTokenLevelFromString(const wchar_t *param,
sandbox::TokenLevel* level) {
if (_wcsicmp(param, L"LOCKDOWN") == 0) {
*level = sandbox::USER_LOCKDOWN;
} else if (_wcsicmp(param, L"RESTRICTED") == 0) {
*level = sandbox::USER_RESTRICTED;
} else if (_wcsicmp(param, L"LIMITED_USER") == 0) {
*level = sandbox::USER_LIMITED;
} else if (_wcsicmp(param, L"INTERACTIVE_USER") == 0) {
*level = sandbox::USER_INTERACTIVE;
} else if (_wcsicmp(param, L"NON_ADMIN") == 0) {
*level = sandbox::USER_NON_ADMIN;
} else if (_wcsicmp(param, L"USER_RESTRICTED_SAME_ACCESS") == 0) {
*level = sandbox::USER_RESTRICTED_SAME_ACCESS;
} else if (_wcsicmp(param, L"UNPROTECTED") == 0) {
*level = sandbox::USER_UNPROTECTED;
} else {
return false;
}
return true;
}
bool GetJobLevelFromString(const wchar_t *param, sandbox::JobLevel* level) {
if (_wcsicmp(param, L"LOCKDOWN") == 0) {
*level = sandbox::JOB_LOCKDOWN;
} else if (_wcsicmp(param, L"RESTRICTED") == 0) {
*level = sandbox::JOB_RESTRICTED;
} else if (_wcsicmp(param, L"LIMITED_USER") == 0) {
*level = sandbox::JOB_LIMITED_USER;
} else if (_wcsicmp(param, L"INTERACTIVE_USER") == 0) {
*level = sandbox::JOB_INTERACTIVE;
} else if (_wcsicmp(param, L"NON_ADMIN") == 0) {
wprintf(L"\nNON_ADMIN is not a supported job type");
return false;
} else if (_wcsicmp(param, L"UNPROTECTED") == 0) {
*level = sandbox::JOB_UNPROTECTED;
} else {
return false;
}
return true;
}
int wmain(int argc, wchar_t *argv[]) {
// Extract the filename from the path.
wchar_t *app_name = wcsrchr(argv[0], L'\\');
if (!app_name) {
app_name = argv[0];
} else {
app_name++;
}
// no argument
if (argc == 1) {
PrintUsage(app_name);
return -1;
}
sandbox::TokenLevel primary_level = sandbox::USER_LOCKDOWN;
sandbox::TokenLevel impersonation_level =
sandbox::USER_RESTRICTED_SAME_ACCESS;
sandbox::JobLevel job_level = sandbox::JOB_LOCKDOWN;
ATL::CString command_line;
// parse command line.
for (int i = 1; i < argc; ++i) {
if (PARAM_IS(L"--main")) {
i++;
if (argc > i) {
if (!GetTokenLevelFromString(argv[i], &primary_level)) {
wprintf(L"\nAbord, Unrecognized main token level \"%s\"", argv[i]);
PrintUsage(app_name);
return -1;
}
}
} else if (PARAM_IS(L"--init")) {
i++;
if (argc > i) {
if (!GetTokenLevelFromString(argv[i], &impersonation_level)) {
wprintf(L"\nAbord, Unrecognized init token level \"%s\"", argv[i]);
PrintUsage(app_name);
return -1;
}
}
} else if (PARAM_IS(L"--job")) {
i++;
if (argc > i) {
if (!GetJobLevelFromString(argv[i], &job_level)) {
wprintf(L"\nAbord, Unrecognized job security level \"%s\"", argv[i]);
PrintUsage(app_name);
return -1;
}
}
} else {
if (command_line.GetLength()) {
command_line += L' ';
}
command_line += argv[i];
}
}
if (!command_line.GetLength()) {
wprintf(L"\nAbord, No command line specified");
PrintUsage(app_name);
return -1;
}
wprintf(L"\nLaunching command line: \"%s\"\n", command_line.GetBuffer());
HANDLE job_handle;
DWORD err_code = sandbox::StartRestrictedProcessInJob(
command_line.GetBuffer(),
primary_level,
impersonation_level,
job_level,
&job_handle);
if (ERROR_SUCCESS != err_code) {
wprintf(L"\nAbord, Error %d while launching command line.", err_code);
return -1;
}
wprintf(L"\nPress any key to continue.");
while(!_kbhit()) {
Sleep(100);
}
::CloseHandle(job_handle);
return 0;
}
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