54 lines
2.1 KiB
C++
54 lines
2.1 KiB
C++
// Copyright 2020 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "test/syscalls/linux/socket_ipv6_udp_unbound_netlink.h"
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#include <arpa/inet.h>
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#include "gtest/gtest.h"
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#include "test/syscalls/linux/socket_netlink_route_util.h"
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#include "test/util/capability_util.h"
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namespace gvisor {
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namespace testing {
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// Checks that the loopback interface does not consider itself bound to all IPs
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// in an associated subnet.
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TEST_P(IPv6UDPUnboundSocketNetlinkTest, JoinSubnet) {
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SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_ADMIN)));
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// Add an IP address to the loopback interface.
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Link loopback_link = ASSERT_NO_ERRNO_AND_VALUE(LoopbackLink());
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struct in6_addr addr;
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EXPECT_EQ(1, inet_pton(AF_INET6, "2001:db8::1", &addr));
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EXPECT_NO_ERRNO(LinkAddLocalAddr(loopback_link.index, AF_INET6,
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/*prefixlen=*/64, &addr, sizeof(addr)));
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// Binding to an unassigned address but an address that is in the subnet
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// associated with the loopback interface should fail.
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TestAddress sender_addr("V6NotAssignd1");
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sender_addr.addr.ss_family = AF_INET6;
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sender_addr.addr_len = sizeof(sockaddr_in6);
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EXPECT_EQ(1, inet_pton(AF_INET6, "2001:db8::2",
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reinterpret_cast<sockaddr_in6*>(&sender_addr.addr)
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->sin6_addr.s6_addr));
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auto sock = ASSERT_NO_ERRNO_AND_VALUE(NewSocket());
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EXPECT_THAT(
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bind(sock->get(), AsSockAddr(&sender_addr.addr), sender_addr.addr_len),
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SyscallFailsWithErrno(EADDRNOTAVAIL));
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}
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} // namespace testing
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} // namespace gvisor
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