1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 31 /* 32 * Tests for the "default_permissions" mount option that require a privileged 33 * user. 34 */ 35 36 extern "C" { 37 #include <sys/types.h> 38 #include <sys/extattr.h> 39 40 #include <fcntl.h> 41 #include <unistd.h> 42 } 43 44 #include "mockfs.hh" 45 #include "utils.hh" 46 47 using namespace testing; 48 49 class DefaultPermissionsPrivileged: public FuseTest { 50 virtual void SetUp() { 51 m_default_permissions = true; 52 FuseTest::SetUp(); 53 if (HasFatalFailure() || IsSkipped()) 54 return; 55 56 if (geteuid() != 0) { 57 GTEST_SKIP() << "This test requires a privileged user"; 58 } 59 60 /* With -o default_permissions, FUSE_ACCESS should never be called */ 61 EXPECT_CALL(*m_mock, process( 62 ResultOf([=](auto in) { 63 return (in.header.opcode == FUSE_ACCESS); 64 }, Eq(true)), 65 _) 66 ).Times(0); 67 } 68 69 public: 70 void expect_getattr(uint64_t ino, mode_t mode, uint64_t attr_valid, int times, 71 uid_t uid = 0, gid_t gid = 0) 72 { 73 EXPECT_CALL(*m_mock, process( 74 ResultOf([=](auto in) { 75 return (in.header.opcode == FUSE_GETATTR && 76 in.header.nodeid == ino); 77 }, Eq(true)), 78 _) 79 ).Times(times) 80 .WillRepeatedly(Invoke(ReturnImmediate([=](auto i __unused, auto& out) { 81 SET_OUT_HEADER_LEN(out, attr); 82 out.body.attr.attr.ino = ino; // Must match nodeid 83 out.body.attr.attr.mode = mode; 84 out.body.attr.attr.size = 0; 85 out.body.attr.attr.uid = uid; 86 out.body.attr.attr.gid = gid; 87 out.body.attr.attr_valid = attr_valid; 88 }))); 89 } 90 91 void expect_lookup(const char *relpath, uint64_t ino, mode_t mode, 92 uint64_t attr_valid, uid_t uid = 0, gid_t gid = 0) 93 { 94 FuseTest::expect_lookup(relpath, ino, mode, 0, 1, attr_valid, uid, gid); 95 } 96 97 }; 98 99 class Setattr: public DefaultPermissionsPrivileged {}; 100 101 TEST_F(Setattr, sticky_regular_file) 102 { 103 const char FULLPATH[] = "mountpoint/some_file.txt"; 104 const char RELPATH[] = "some_file.txt"; 105 const uint64_t ino = 42; 106 const mode_t oldmode = 0644; 107 const mode_t newmode = 01644; 108 109 expect_getattr(1, S_IFDIR | 0755, UINT64_MAX, 1); 110 expect_lookup(RELPATH, ino, S_IFREG | oldmode, UINT64_MAX, geteuid()); 111 EXPECT_CALL(*m_mock, process( 112 ResultOf([](auto in) { 113 return (in.header.opcode == FUSE_SETATTR); 114 }, Eq(true)), 115 _) 116 ).WillOnce(Invoke(ReturnImmediate([](auto in __unused, auto& out) { 117 SET_OUT_HEADER_LEN(out, attr); 118 out.body.attr.attr.mode = S_IFREG | newmode; 119 }))); 120 121 EXPECT_EQ(0, chmod(FULLPATH, newmode)) << strerror(errno); 122 } 123 124 125