From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- security/sandbox/linux/gtest/TestBrokerPolicy.cpp | 95 +++++++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 security/sandbox/linux/gtest/TestBrokerPolicy.cpp (limited to 'security/sandbox/linux/gtest/TestBrokerPolicy.cpp') diff --git a/security/sandbox/linux/gtest/TestBrokerPolicy.cpp b/security/sandbox/linux/gtest/TestBrokerPolicy.cpp new file mode 100644 index 0000000000..d881e6d290 --- /dev/null +++ b/security/sandbox/linux/gtest/TestBrokerPolicy.cpp @@ -0,0 +1,95 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "gtest/gtest.h" + +#include "broker/SandboxBroker.h" + +namespace mozilla { + +static const int MAY_ACCESS = SandboxBroker::MAY_ACCESS; +static const int MAY_READ = SandboxBroker::MAY_READ; +static const int MAY_WRITE = SandboxBroker::MAY_WRITE; +// static const int MAY_CREATE = SandboxBroker::MAY_CREATE; +// static const int RECURSIVE = SandboxBroker::RECURSIVE; +static const auto AddAlways = SandboxBroker::Policy::AddAlways; + +TEST(SandboxBrokerPolicyLookup, Simple) +{ + SandboxBroker::Policy p; + p.AddPath(MAY_READ, "/dev/urandom", AddAlways); + + EXPECT_NE(0, p.Lookup("/dev/urandom")) << "Added path not found."; + EXPECT_EQ(MAY_ACCESS | MAY_READ, p.Lookup("/dev/urandom")) + << "Added path found with wrong perms."; + EXPECT_EQ(0, p.Lookup("/etc/passwd")) << "Non-added path was found."; +} + +TEST(SandboxBrokerPolicyLookup, CopyCtor) +{ + SandboxBroker::Policy psrc; + psrc.AddPath(MAY_READ | MAY_WRITE, "/dev/null", AddAlways); + SandboxBroker::Policy pdst(psrc); + psrc.AddPath(MAY_READ, "/dev/zero", AddAlways); + pdst.AddPath(MAY_READ, "/dev/urandom", AddAlways); + + EXPECT_EQ(MAY_ACCESS | MAY_READ | MAY_WRITE, psrc.Lookup("/dev/null")) + << "Common path absent in copy source."; + EXPECT_EQ(MAY_ACCESS | MAY_READ | MAY_WRITE, pdst.Lookup("/dev/null")) + << "Common path absent in copy destination."; + + EXPECT_EQ(MAY_ACCESS | MAY_READ, psrc.Lookup("/dev/zero")) + << "Source-only path is absent."; + EXPECT_EQ(0, pdst.Lookup("/dev/zero")) + << "Source-only path is present in copy destination."; + + EXPECT_EQ(0, psrc.Lookup("/dev/urandom")) + << "Destination-only path is present in copy source."; + EXPECT_EQ(MAY_ACCESS | MAY_READ, pdst.Lookup("/dev/urandom")) + << "Destination-only path is absent."; + + EXPECT_EQ(0, psrc.Lookup("/etc/passwd")) + << "Non-added path is present in copy source."; + EXPECT_EQ(0, pdst.Lookup("/etc/passwd")) + << "Non-added path is present in copy source."; +} + +TEST(SandboxBrokerPolicyLookup, Recursive) +{ + SandboxBroker::Policy psrc; + psrc.AddPath(MAY_READ | MAY_WRITE, "/dev/null", AddAlways); + psrc.AddPath(MAY_READ, "/dev/zero", AddAlways); + psrc.AddPath(MAY_READ, "/dev/urandom", AddAlways); + + EXPECT_EQ(MAY_ACCESS | MAY_READ | MAY_WRITE, psrc.Lookup("/dev/null")) + << "Basic path is present."; + EXPECT_EQ(MAY_ACCESS | MAY_READ, psrc.Lookup("/dev/zero")) + << "Basic path has no extra flags"; + + psrc.AddDir(MAY_READ | MAY_WRITE, "/dev/"); + + EXPECT_EQ(MAY_ACCESS | MAY_READ | MAY_WRITE, psrc.Lookup("/dev/random")) + << "Permission via recursive dir."; + EXPECT_EQ(MAY_ACCESS | MAY_READ | MAY_WRITE, psrc.Lookup("/dev/sd/0")) + << "Permission via recursive dir, nested deeper"; + EXPECT_EQ(0, psrc.Lookup("/dev/sd/0/")) << "Invalid path format."; + EXPECT_EQ(0, psrc.Lookup("/usr/dev/sd")) << "Match must be a prefix."; + + psrc.AddDir(MAY_READ, "/dev/sd/"); + EXPECT_EQ(MAY_ACCESS | MAY_READ | MAY_WRITE, psrc.Lookup("/dev/sd/0")) + << "Extra permissions from parent path granted."; + EXPECT_EQ(0, psrc.Lookup("/dev/..")) << "Refuse attempted subdir escape."; + + psrc.AddDir(MAY_READ, "/tmp"); + EXPECT_EQ(MAY_ACCESS | MAY_READ, psrc.Lookup("/tmp/good/a")) + << "Check whether dir add with no trailing / was sucessful."; + EXPECT_EQ(0, psrc.Lookup("/tmp_good_but_bad")) + << "Enforce terminator on directories."; + EXPECT_EQ(0, psrc.Lookup("/tmp/.")) + << "Do not allow opening a directory handle."; +} + +} // namespace mozilla -- cgit v1.2.3