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Diffstat (limited to 'test/syscalls/linux/uname.cc')
-rw-r--r-- | test/syscalls/linux/uname.cc | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/test/syscalls/linux/uname.cc b/test/syscalls/linux/uname.cc deleted file mode 100644 index d8824b171..000000000 --- a/test/syscalls/linux/uname.cc +++ /dev/null @@ -1,111 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include <sched.h> -#include <sys/utsname.h> -#include <unistd.h> - -#include "gtest/gtest.h" -#include "absl/strings/string_view.h" -#include "test/util/capability_util.h" -#include "test/util/test_util.h" -#include "test/util/thread_util.h" - -namespace gvisor { -namespace testing { - -namespace { - -TEST(UnameTest, Sanity) { - struct utsname buf; - ASSERT_THAT(uname(&buf), SyscallSucceeds()); - EXPECT_NE(strlen(buf.release), 0); - EXPECT_NE(strlen(buf.version), 0); - EXPECT_NE(strlen(buf.machine), 0); - EXPECT_NE(strlen(buf.sysname), 0); - EXPECT_NE(strlen(buf.nodename), 0); - EXPECT_NE(strlen(buf.domainname), 0); -} - -TEST(UnameTest, SetNames) { - SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_SYS_ADMIN))); - - char hostname[65]; - ASSERT_THAT(sethostname("0123456789", 3), SyscallSucceeds()); - EXPECT_THAT(gethostname(hostname, sizeof(hostname)), SyscallSucceeds()); - EXPECT_EQ(absl::string_view(hostname), "012"); - - ASSERT_THAT(sethostname("0123456789\0xxx", 11), SyscallSucceeds()); - EXPECT_THAT(gethostname(hostname, sizeof(hostname)), SyscallSucceeds()); - EXPECT_EQ(absl::string_view(hostname), "0123456789"); - - ASSERT_THAT(sethostname("0123456789\0xxx", 12), SyscallSucceeds()); - EXPECT_THAT(gethostname(hostname, sizeof(hostname)), SyscallSucceeds()); - EXPECT_EQ(absl::string_view(hostname), "0123456789"); - - constexpr char kHostname[] = "wubbalubba"; - ASSERT_THAT(sethostname(kHostname, sizeof(kHostname)), SyscallSucceeds()); - - constexpr char kDomainname[] = "dubdub.com"; - ASSERT_THAT(setdomainname(kDomainname, sizeof(kDomainname)), - SyscallSucceeds()); - - struct utsname buf; - EXPECT_THAT(uname(&buf), SyscallSucceeds()); - EXPECT_EQ(absl::string_view(buf.nodename), kHostname); - EXPECT_EQ(absl::string_view(buf.domainname), kDomainname); - - // These should just be glibc wrappers that also call uname(2). - EXPECT_THAT(gethostname(hostname, sizeof(hostname)), SyscallSucceeds()); - EXPECT_EQ(absl::string_view(hostname), kHostname); - - char domainname[65]; - EXPECT_THAT(getdomainname(domainname, sizeof(domainname)), SyscallSucceeds()); - EXPECT_EQ(absl::string_view(domainname), kDomainname); -} - -TEST(UnameTest, UnprivilegedSetNames) { - if (ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_SYS_ADMIN))) { - EXPECT_NO_ERRNO(SetCapability(CAP_SYS_ADMIN, false)); - } - - EXPECT_THAT(sethostname("", 0), SyscallFailsWithErrno(EPERM)); - EXPECT_THAT(setdomainname("", 0), SyscallFailsWithErrno(EPERM)); -} - -TEST(UnameTest, UnshareUTS) { - SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_SYS_ADMIN))); - - struct utsname init; - ASSERT_THAT(uname(&init), SyscallSucceeds()); - - ScopedThread([&]() { - EXPECT_THAT(unshare(CLONE_NEWUTS), SyscallSucceeds()); - - constexpr char kHostname[] = "wubbalubba"; - EXPECT_THAT(sethostname(kHostname, sizeof(kHostname)), SyscallSucceeds()); - - char hostname[65]; - EXPECT_THAT(gethostname(hostname, sizeof(hostname)), SyscallSucceeds()); - }); - - struct utsname after; - EXPECT_THAT(uname(&after), SyscallSucceeds()); - EXPECT_EQ(absl::string_view(after.nodename), init.nodename); -} - -} // namespace - -} // namespace testing -} // namespace gvisor |