1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2019 The FreeBSD Foundation 5 * 6 * This software was developed by BFF Storage Systems, LLC under sponsorship 7 * from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $FreeBSD$ 31 */ 32 33 /* 34 * Tests for the "default_permissions" mount option that require a privileged 35 * user. 36 */ 37 38 extern "C" { 39 #include <sys/types.h> 40 #include <sys/extattr.h> 41 42 #include <fcntl.h> 43 #include <unistd.h> 44 } 45 46 #include "mockfs.hh" 47 #include "utils.hh" 48 49 using namespace testing; 50 51 class DefaultPermissionsPrivileged: public FuseTest { 52 virtual void SetUp() { 53 m_default_permissions = true; 54 FuseTest::SetUp(); 55 if (HasFatalFailure() || IsSkipped()) 56 return; 57 58 if (geteuid() != 0) { 59 GTEST_SKIP() << "This test requires a privileged user"; 60 } 61 62 /* With -o default_permissions, FUSE_ACCESS should never be called */ 63 EXPECT_CALL(*m_mock, process( 64 ResultOf([=](auto in) { 65 return (in.header.opcode == FUSE_ACCESS); 66 }, Eq(true)), 67 _) 68 ).Times(0); 69 } 70 71 public: 72 void expect_getattr(uint64_t ino, mode_t mode, uint64_t attr_valid, int times, 73 uid_t uid = 0, gid_t gid = 0) 74 { 75 EXPECT_CALL(*m_mock, process( 76 ResultOf([=](auto in) { 77 return (in.header.opcode == FUSE_GETATTR && 78 in.header.nodeid == ino); 79 }, Eq(true)), 80 _) 81 ).Times(times) 82 .WillRepeatedly(Invoke(ReturnImmediate([=](auto i __unused, auto& out) { 83 SET_OUT_HEADER_LEN(out, attr); 84 out.body.attr.attr.ino = ino; // Must match nodeid 85 out.body.attr.attr.mode = mode; 86 out.body.attr.attr.size = 0; 87 out.body.attr.attr.uid = uid; 88 out.body.attr.attr.gid = gid; 89 out.body.attr.attr_valid = attr_valid; 90 }))); 91 } 92 93 void expect_lookup(const char *relpath, uint64_t ino, mode_t mode, 94 uint64_t attr_valid, uid_t uid = 0, gid_t gid = 0) 95 { 96 FuseTest::expect_lookup(relpath, ino, mode, 0, 1, attr_valid, uid, gid); 97 } 98 99 }; 100 101 class Setattr: public DefaultPermissionsPrivileged {}; 102 103 TEST_F(Setattr, sticky_regular_file) 104 { 105 const char FULLPATH[] = "mountpoint/some_file.txt"; 106 const char RELPATH[] = "some_file.txt"; 107 const uint64_t ino = 42; 108 const mode_t oldmode = 0644; 109 const mode_t newmode = 01644; 110 111 expect_getattr(1, S_IFDIR | 0755, UINT64_MAX, 1); 112 expect_lookup(RELPATH, ino, S_IFREG | oldmode, UINT64_MAX, geteuid()); 113 EXPECT_CALL(*m_mock, process( 114 ResultOf([](auto in) { 115 return (in.header.opcode == FUSE_SETATTR); 116 }, Eq(true)), 117 _) 118 ).WillOnce(Invoke(ReturnImmediate([](auto in __unused, auto& out) { 119 SET_OUT_HEADER_LEN(out, attr); 120 out.body.attr.attr.mode = S_IFREG | newmode; 121 }))); 122 123 EXPECT_EQ(0, chmod(FULLPATH, newmode)) << strerror(errno); 124 } 125 126 127