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-rw-r--r--test/syscalls/linux/iptables.cc204
1 files changed, 0 insertions, 204 deletions
diff --git a/test/syscalls/linux/iptables.cc b/test/syscalls/linux/iptables.cc
deleted file mode 100644
index 9b338d970..000000000
--- a/test/syscalls/linux/iptables.cc
+++ /dev/null
@@ -1,204 +0,0 @@
-// Copyright 2019 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 "test/syscalls/linux/iptables.h"
-
-#include <arpa/inet.h>
-#include <linux/capability.h>
-#include <linux/netfilter/x_tables.h>
-#include <net/if.h>
-#include <netinet/in.h>
-#include <netinet/ip.h>
-#include <netinet/ip_icmp.h>
-#include <stdio.h>
-#include <sys/poll.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include <algorithm>
-
-#include "gtest/gtest.h"
-#include "test/util/capability_util.h"
-#include "test/util/file_descriptor.h"
-#include "test/util/test_util.h"
-
-namespace gvisor {
-namespace testing {
-
-namespace {
-
-constexpr char kNatTablename[] = "nat";
-constexpr char kErrorTarget[] = "ERROR";
-constexpr size_t kEmptyStandardEntrySize =
- sizeof(struct ipt_entry) + sizeof(struct ipt_standard_target);
-constexpr size_t kEmptyErrorEntrySize =
- sizeof(struct ipt_entry) + sizeof(struct ipt_error_target);
-
-TEST(IPTablesBasic, CreateSocket) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- int sock;
- ASSERT_THAT(sock = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP),
- SyscallSucceeds());
-
- ASSERT_THAT(close(sock), SyscallSucceeds());
-}
-
-TEST(IPTablesBasic, FailSockoptNonRaw) {
- // Even if the user has CAP_NET_RAW, they shouldn't be able to use the
- // iptables sockopts with a non-raw socket.
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- int sock;
- ASSERT_THAT(sock = socket(AF_INET, SOCK_DGRAM, 0), SyscallSucceeds());
-
- struct ipt_getinfo info = {};
- snprintf(info.name, XT_TABLE_MAXNAMELEN, "%s", kNatTablename);
- socklen_t info_size = sizeof(info);
- EXPECT_THAT(getsockopt(sock, IPPROTO_IP, IPT_SO_GET_INFO, &info, &info_size),
- SyscallFailsWithErrno(ENOPROTOOPT));
-
- ASSERT_THAT(close(sock), SyscallSucceeds());
-}
-
-// Fixture for iptables tests.
-class IPTablesTest : public ::testing::Test {
- protected:
- // Creates a socket to be used in tests.
- void SetUp() override;
-
- // Closes the socket created by SetUp().
- void TearDown() override;
-
- // The socket via which to manipulate iptables.
- int s_;
-};
-
-void IPTablesTest::SetUp() {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- ASSERT_THAT(s_ = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP), SyscallSucceeds());
-}
-
-void IPTablesTest::TearDown() {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- EXPECT_THAT(close(s_), SyscallSucceeds());
-}
-
-// This tests the initial state of a machine with empty iptables. We don't have
-// a guarantee that the iptables are empty when running in native, but we can
-// test that gVisor has the same initial state that a newly-booted Linux machine
-// would have.
-TEST_F(IPTablesTest, InitialState) {
- SKIP_IF(!IsRunningOnGvisor());
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
-
- //
- // Get info via sockopt.
- //
- struct ipt_getinfo info = {};
- snprintf(info.name, XT_TABLE_MAXNAMELEN, "%s", kNatTablename);
- socklen_t info_size = sizeof(info);
- ASSERT_THAT(getsockopt(s_, IPPROTO_IP, IPT_SO_GET_INFO, &info, &info_size),
- SyscallSucceeds());
-
- // The nat table supports PREROUTING, and OUTPUT.
- unsigned int valid_hooks = (1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_OUT) |
- (1 << NF_IP_POST_ROUTING) | (1 << NF_IP_LOCAL_IN);
-
- EXPECT_EQ(info.valid_hooks, valid_hooks);
-
- // Each chain consists of an empty entry with a standard target..
- EXPECT_EQ(info.hook_entry[NF_IP_PRE_ROUTING], 0);
- EXPECT_EQ(info.hook_entry[NF_IP_LOCAL_IN], kEmptyStandardEntrySize);
- EXPECT_EQ(info.hook_entry[NF_IP_LOCAL_OUT], kEmptyStandardEntrySize * 2);
- EXPECT_EQ(info.hook_entry[NF_IP_POST_ROUTING], kEmptyStandardEntrySize * 3);
-
- // The underflow points are the same as the entry points.
- EXPECT_EQ(info.underflow[NF_IP_PRE_ROUTING], 0);
- EXPECT_EQ(info.underflow[NF_IP_LOCAL_IN], kEmptyStandardEntrySize);
- EXPECT_EQ(info.underflow[NF_IP_LOCAL_OUT], kEmptyStandardEntrySize * 2);
- EXPECT_EQ(info.underflow[NF_IP_POST_ROUTING], kEmptyStandardEntrySize * 3);
-
- // One entry for each chain, plus an error entry at the end.
- EXPECT_EQ(info.num_entries, 5);
-
- EXPECT_EQ(info.size, 4 * kEmptyStandardEntrySize + kEmptyErrorEntrySize);
- EXPECT_EQ(strcmp(info.name, kNatTablename), 0);
-
- //
- // Use info to get entries.
- //
- socklen_t entries_size = sizeof(struct ipt_get_entries) + info.size;
- struct ipt_get_entries* entries =
- static_cast<struct ipt_get_entries*>(malloc(entries_size));
- snprintf(entries->name, XT_TABLE_MAXNAMELEN, "%s", kNatTablename);
- entries->size = info.size;
- ASSERT_THAT(
- getsockopt(s_, IPPROTO_IP, IPT_SO_GET_ENTRIES, entries, &entries_size),
- SyscallSucceeds());
-
- // Verify the name and size.
- ASSERT_EQ(info.size, entries->size);
- ASSERT_EQ(strcmp(entries->name, kNatTablename), 0);
-
- // Verify that the entrytable is 4 entries with accept targets and no matches
- // followed by a single error target.
- size_t entry_offset = 0;
- while (entry_offset < entries->size) {
- struct ipt_entry* entry = reinterpret_cast<struct ipt_entry*>(
- reinterpret_cast<char*>(entries->entrytable) + entry_offset);
-
- // ip should be zeroes.
- struct ipt_ip zeroed = {};
- EXPECT_EQ(memcmp(static_cast<void*>(&zeroed),
- static_cast<void*>(&entry->ip), sizeof(zeroed)),
- 0);
-
- // target_offset should be zero.
- EXPECT_EQ(entry->target_offset, sizeof(ipt_entry));
-
- if (entry_offset < kEmptyStandardEntrySize * 4) {
- // The first 4 entries are standard targets
- struct ipt_standard_target* target =
- reinterpret_cast<struct ipt_standard_target*>(entry->elems);
- EXPECT_EQ(entry->next_offset, kEmptyStandardEntrySize);
- EXPECT_EQ(target->target.u.user.target_size, sizeof(*target));
- EXPECT_EQ(strcmp(target->target.u.user.name, ""), 0);
- EXPECT_EQ(target->target.u.user.revision, 0);
- // This is what's returned for an accept verdict. I don't know why.
- EXPECT_EQ(target->verdict, -NF_ACCEPT - 1);
- } else {
- // The last entry is an error target
- struct ipt_error_target* target =
- reinterpret_cast<struct ipt_error_target*>(entry->elems);
- EXPECT_EQ(entry->next_offset, kEmptyErrorEntrySize);
- EXPECT_EQ(target->target.u.user.target_size, sizeof(*target));
- EXPECT_EQ(strcmp(target->target.u.user.name, kErrorTarget), 0);
- EXPECT_EQ(target->target.u.user.revision, 0);
- EXPECT_EQ(strcmp(target->errorname, kErrorTarget), 0);
- }
-
- entry_offset += entry->next_offset;
- }
-
- free(entries);
-}
-
-} // namespace
-
-} // namespace testing
-} // namespace gvisor