2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2019 The FreeBSD Foundation
6 * This software was developed by BFF Storage Systems, LLC under sponsorship
7 * from the FreeBSD Foundation.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
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.
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
32 #include <sys/param.h>
40 using namespace testing;
42 class Readlink: public FuseTest {
44 void expect_lookup(const char *relpath, uint64_t ino)
46 FuseTest::expect_lookup(relpath, ino, S_IFLNK | 0777, 0, 1);
48 void expect_readlink(uint64_t ino, ProcessMockerT r)
50 EXPECT_CALL(*m_mock, process(
51 ResultOf([=](auto in) {
52 return (in->header.opcode == FUSE_READLINK &&
53 in->header.nodeid == ino);
56 ).WillOnce(Invoke(r));
61 class PushSymlinksIn: public Readlink {
62 virtual void SetUp() {
63 m_push_symlinks_in = true;
68 TEST_F(Readlink, eloop)
70 const char FULLPATH[] = "mountpoint/src";
71 const char RELPATH[] = "src";
72 const uint64_t ino = 42;
75 expect_lookup(RELPATH, ino);
76 expect_readlink(ino, ReturnErrno(ELOOP));
78 EXPECT_EQ(-1, readlink(FULLPATH, buf, sizeof(buf)));
79 EXPECT_EQ(ELOOP, errno);
84 const char FULLPATH[] = "mountpoint/src";
85 const char RELPATH[] = "src";
86 const char dst[] = "dst";
87 const uint64_t ino = 42;
90 expect_lookup(RELPATH, ino);
91 expect_readlink(ino, ReturnImmediate([=](auto in __unused, auto out) {
92 strlcpy(out->body.str, dst, sizeof(out->body.str));
93 out->header.len = sizeof(out->header) + strlen(dst) + 1;
96 EXPECT_EQ((ssize_t)strlen(dst) + 1,
97 readlink(FULLPATH, buf, sizeof(buf)));
98 EXPECT_STREQ(dst, buf);
101 TEST_F(PushSymlinksIn, readlink)
103 const char FULLPATH[] = "mountpoint/src";
104 const char RELPATH[] = "src";
105 const char dst[] = "/dst";
106 const uint64_t ino = 42;
107 char buf[MAXPATHLEN], wd[MAXPATHLEN], want[MAXPATHLEN];
110 expect_lookup(RELPATH, ino);
111 expect_readlink(ino, ReturnImmediate([=](auto in __unused, auto out) {
112 strlcpy(out->body.str, dst, sizeof(out->body.str));
113 out->header.len = sizeof(out->header) + strlen(dst) + 1;
116 ASSERT_NE(NULL, getcwd(wd, sizeof(wd))) << strerror(errno);
117 len = snprintf(want, sizeof(want), "%s/mountpoint%s", wd, dst);
118 ASSERT_LE(0, len) << strerror(errno);
120 EXPECT_EQ((ssize_t)len + 1, readlink(FULLPATH, buf, sizeof(buf)));
121 EXPECT_STREQ(want, buf);