summaryrefslogtreecommitdiffhomepage
path: root/test/syscalls/linux/socket_netdevice.cc
diff options
context:
space:
mode:
Diffstat (limited to 'test/syscalls/linux/socket_netdevice.cc')
-rw-r--r--test/syscalls/linux/socket_netdevice.cc183
1 files changed, 0 insertions, 183 deletions
diff --git a/test/syscalls/linux/socket_netdevice.cc b/test/syscalls/linux/socket_netdevice.cc
deleted file mode 100644
index 765f8e0e4..000000000
--- a/test/syscalls/linux/socket_netdevice.cc
+++ /dev/null
@@ -1,183 +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 <linux/netlink.h>
-#include <linux/rtnetlink.h>
-#include <linux/sockios.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-
-#include "gtest/gtest.h"
-#include "absl/base/internal/endian.h"
-#include "test/syscalls/linux/socket_netlink_util.h"
-#include "test/syscalls/linux/socket_test_util.h"
-#include "test/util/file_descriptor.h"
-#include "test/util/test_util.h"
-
-// Tests for netdevice queries.
-
-namespace gvisor {
-namespace testing {
-
-namespace {
-
-using ::testing::AnyOf;
-using ::testing::Eq;
-
-TEST(NetdeviceTest, Loopback) {
- FileDescriptor sock =
- ASSERT_NO_ERRNO_AND_VALUE(Socket(AF_INET, SOCK_DGRAM, 0));
-
- // Prepare the request.
- struct ifreq ifr;
- snprintf(ifr.ifr_name, IFNAMSIZ, "lo");
-
- // Check for a non-zero interface index.
- ASSERT_THAT(ioctl(sock.get(), SIOCGIFINDEX, &ifr), SyscallSucceeds());
- EXPECT_NE(ifr.ifr_ifindex, 0);
-
- // Check that the loopback is zero hardware address.
- ASSERT_THAT(ioctl(sock.get(), SIOCGIFHWADDR, &ifr), SyscallSucceeds());
- EXPECT_EQ(ifr.ifr_hwaddr.sa_data[0], 0);
- EXPECT_EQ(ifr.ifr_hwaddr.sa_data[1], 0);
- EXPECT_EQ(ifr.ifr_hwaddr.sa_data[2], 0);
- EXPECT_EQ(ifr.ifr_hwaddr.sa_data[3], 0);
- EXPECT_EQ(ifr.ifr_hwaddr.sa_data[4], 0);
- EXPECT_EQ(ifr.ifr_hwaddr.sa_data[5], 0);
-}
-
-TEST(NetdeviceTest, Netmask) {
- // We need an interface index to identify the loopback device.
- FileDescriptor sock =
- ASSERT_NO_ERRNO_AND_VALUE(Socket(AF_INET, SOCK_DGRAM, 0));
- struct ifreq ifr;
- snprintf(ifr.ifr_name, IFNAMSIZ, "lo");
- ASSERT_THAT(ioctl(sock.get(), SIOCGIFINDEX, &ifr), SyscallSucceeds());
- EXPECT_NE(ifr.ifr_ifindex, 0);
-
- // Use a netlink socket to get the netmask, which we'll then compare to the
- // netmask obtained via ioctl.
- FileDescriptor fd = ASSERT_NO_ERRNO_AND_VALUE(NetlinkBoundSocket());
- uint32_t port = ASSERT_NO_ERRNO_AND_VALUE(NetlinkPortID(fd.get()));
-
- struct request {
- struct nlmsghdr hdr;
- struct rtgenmsg rgm;
- };
-
- constexpr uint32_t kSeq = 12345;
-
- struct request req;
- req.hdr.nlmsg_len = sizeof(req);
- req.hdr.nlmsg_type = RTM_GETADDR;
- req.hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
- req.hdr.nlmsg_seq = kSeq;
- req.rgm.rtgen_family = AF_UNSPEC;
-
- // Iterate through messages until we find the one containing the prefix length
- // (i.e. netmask) for the loopback device.
- int prefixlen = -1;
- ASSERT_NO_ERRNO(NetlinkRequestResponse(
- fd, &req, sizeof(req),
- [&](const struct nlmsghdr *hdr) {
- EXPECT_THAT(hdr->nlmsg_type, AnyOf(Eq(RTM_NEWADDR), Eq(NLMSG_DONE)));
-
- EXPECT_TRUE((hdr->nlmsg_flags & NLM_F_MULTI) == NLM_F_MULTI)
- << std::hex << hdr->nlmsg_flags;
-
- EXPECT_EQ(hdr->nlmsg_seq, kSeq);
- EXPECT_EQ(hdr->nlmsg_pid, port);
-
- if (hdr->nlmsg_type != RTM_NEWADDR) {
- return;
- }
-
- // RTM_NEWADDR contains at least the header and ifaddrmsg.
- EXPECT_GE(hdr->nlmsg_len, sizeof(*hdr) + sizeof(struct ifaddrmsg));
-
- struct ifaddrmsg *ifaddrmsg =
- reinterpret_cast<struct ifaddrmsg *>(NLMSG_DATA(hdr));
- if (ifaddrmsg->ifa_index == static_cast<uint32_t>(ifr.ifr_ifindex) &&
- ifaddrmsg->ifa_family == AF_INET) {
- prefixlen = ifaddrmsg->ifa_prefixlen;
- }
- },
- false));
-
- ASSERT_GE(prefixlen, 0);
-
- // Netmask is stored big endian in struct sockaddr_in, so we do the same for
- // comparison.
- uint32_t mask = 0xffffffff << (32 - prefixlen);
- mask = absl::gbswap_32(mask);
-
- // Check that the loopback interface has the correct subnet mask.
- snprintf(ifr.ifr_name, IFNAMSIZ, "lo");
- ASSERT_THAT(ioctl(sock.get(), SIOCGIFNETMASK, &ifr), SyscallSucceeds());
- EXPECT_EQ(ifr.ifr_netmask.sa_family, AF_INET);
- struct sockaddr_in *sin =
- reinterpret_cast<struct sockaddr_in *>(&ifr.ifr_netmask);
- EXPECT_EQ(sin->sin_addr.s_addr, mask);
-}
-
-TEST(NetdeviceTest, InterfaceName) {
- FileDescriptor sock =
- ASSERT_NO_ERRNO_AND_VALUE(Socket(AF_INET, SOCK_DGRAM, 0));
-
- // Prepare the request.
- struct ifreq ifr;
- snprintf(ifr.ifr_name, IFNAMSIZ, "lo");
-
- // Check for a non-zero interface index.
- ASSERT_THAT(ioctl(sock.get(), SIOCGIFINDEX, &ifr), SyscallSucceeds());
- EXPECT_NE(ifr.ifr_ifindex, 0);
-
- // Check that SIOCGIFNAME finds the loopback interface.
- snprintf(ifr.ifr_name, IFNAMSIZ, "foo");
- ASSERT_THAT(ioctl(sock.get(), SIOCGIFNAME, &ifr), SyscallSucceeds());
- EXPECT_STREQ(ifr.ifr_name, "lo");
-}
-
-TEST(NetdeviceTest, InterfaceFlags) {
- FileDescriptor sock =
- ASSERT_NO_ERRNO_AND_VALUE(Socket(AF_INET, SOCK_DGRAM, 0));
-
- // Prepare the request.
- struct ifreq ifr;
- snprintf(ifr.ifr_name, IFNAMSIZ, "lo");
-
- // Check that SIOCGIFFLAGS marks the interface with IFF_LOOPBACK, IFF_UP, and
- // IFF_RUNNING.
- ASSERT_THAT(ioctl(sock.get(), SIOCGIFFLAGS, &ifr), SyscallSucceeds());
- EXPECT_EQ(ifr.ifr_flags & IFF_UP, IFF_UP);
- EXPECT_EQ(ifr.ifr_flags & IFF_RUNNING, IFF_RUNNING);
-}
-
-TEST(NetdeviceTest, InterfaceMTU) {
- FileDescriptor sock =
- ASSERT_NO_ERRNO_AND_VALUE(Socket(AF_INET, SOCK_DGRAM, 0));
-
- // Prepare the request.
- struct ifreq ifr = {};
- snprintf(ifr.ifr_name, IFNAMSIZ, "lo");
-
- // Check that SIOCGIFMTU returns a nonzero MTU.
- ASSERT_THAT(ioctl(sock.get(), SIOCGIFMTU, &ifr), SyscallSucceeds());
- EXPECT_GT(ifr.ifr_mtu, 0);
-}
-
-} // namespace
-
-} // namespace testing
-} // namespace gvisor