The Tor Browser: security/sandbox/win/src/policy_engine

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.

     2 // Use of this source code is governed by a BSD-style license that can be

     3 // found in the LICENSE file.

     5 #include "sandbox/win/src/policy_engine_params.h"

     6 #include "sandbox/win/src/policy_engine_processor.h"

     7 #include "testing/gtest/include/gtest/gtest.h"

     9 #define POLPARAMS_BEGIN(x) sandbox::ParameterSet x[] = {

    10 #define POLPARAM(p) sandbox::ParamPickerMake(p),

    11 #define POLPARAMS_END }

    13 namespace sandbox {

    15 bool SetupNtdllImports();

    17 TEST(PolicyEngineTest, Rules1) {

    18   SetupNtdllImports();

    20   // Construct two policy rules that say:

    21   //

    22   // #1

    23   // If the path is c:\\documents and settings\\* AND

    24   // If the creation mode is 'open existing' AND

    25   // If the security descriptor is null THEN

    26   // Ask the broker.

    27   //

    28   // #2

    29   // If the security descriptor is null AND

    30   // If the path ends with *.txt AND

    31   // If the creation mode is not 'create new' THEN

    32   // return Access Denied.

    34   enum FileCreateArgs {

    35     FileNameArg,

    36     CreationDispositionArg,

    37     FlagsAndAttributesArg,

    38     SecurityAttributes

    39   };

    41   const size_t policy_sz = 1024;

    42   PolicyBuffer* policy = reinterpret_cast<PolicyBuffer*>(new char[policy_sz]);

    43   OpcodeFactory opcode_maker(policy, policy_sz - 0x40);

    45   // Add rule set #1

    46   opcode_maker.MakeOpWStringMatch(FileNameArg,

    47                                   L"c:\\documents and settings\\",

    48                                   0, CASE_INSENSITIVE, kPolNone);

    49   opcode_maker.MakeOpNumberMatch(CreationDispositionArg, OPEN_EXISTING,

    50                                  kPolNone);

    51   opcode_maker.MakeOpVoidPtrMatch(SecurityAttributes, (void*)NULL,

    52                                  kPolNone);

    53   opcode_maker.MakeOpAction(ASK_BROKER, kPolNone);

    55   // Add rule set #2

    56   opcode_maker.MakeOpWStringMatch(FileNameArg, L".TXT",

    57                                   kSeekToEnd, CASE_INSENSITIVE, kPolNone);

    58   opcode_maker.MakeOpNumberMatch(CreationDispositionArg, CREATE_NEW,

    59                                  kPolNegateEval);

    60   opcode_maker.MakeOpAction(FAKE_ACCESS_DENIED, kPolNone);

    61   policy->opcode_count = 7;

    63   wchar_t* filename = L"c:\\Documents and Settings\\Microsoft\\BLAH.txt";

    64   unsigned long creation_mode = OPEN_EXISTING;

    65   unsigned long flags = FILE_ATTRIBUTE_NORMAL;

    66   void* security_descriptor = NULL;

    68   POLPARAMS_BEGIN(eval_params)

    69     POLPARAM(filename)

    70     POLPARAM(creation_mode)

    71     POLPARAM(flags)

    72     POLPARAM(security_descriptor)

    73   POLPARAMS_END;

    75   PolicyResult pr;

    76   PolicyProcessor pol_ev(policy);

    78   // Test should match the first rule set.

    79   pr = pol_ev.Evaluate(kShortEval, eval_params, _countof(eval_params));

    80   EXPECT_EQ(POLICY_MATCH, pr);

    81   EXPECT_EQ(ASK_BROKER, pol_ev.GetAction());

    83   // Test should still match the first rule set.

    84   pr = pol_ev.Evaluate(kShortEval, eval_params, _countof(eval_params));

    85   EXPECT_EQ(POLICY_MATCH, pr);

    86   EXPECT_EQ(ASK_BROKER, pol_ev.GetAction());

    88   // Changing creation_mode such that evaluation should not match any rule.

    89   creation_mode = CREATE_NEW;

    90   pr = pol_ev.Evaluate(kShortEval, eval_params, _countof(eval_params));

    91   EXPECT_EQ(NO_POLICY_MATCH, pr);

    93   // Changing creation_mode such that evaluation should match rule #2.

    94   creation_mode = OPEN_ALWAYS;

    95   pr = pol_ev.Evaluate(kShortEval, eval_params, _countof(eval_params));

    96   EXPECT_EQ(POLICY_MATCH, pr);

    97   EXPECT_EQ(FAKE_ACCESS_DENIED, pol_ev.GetAction());

    99   delete [] reinterpret_cast<char*>(policy);

   100 }

   102 }  // namespace sandbox

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