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authorGhanan Gowripalan <ghanan@google.com>2021-08-11 18:18:36 -0700
committergVisor bot <gvisor-bot@google.com>2021-08-11 18:21:40 -0700
commitd51bc877f40d2acbf5b83895f636186c87463ab1 (patch)
treea3dcf26bcd3f05994df22cd359b2b4ac6503da55 /test/syscalls/linux
parenta50596874a4971167f97a05181363e91292a2885 (diff)
Run packet socket tests on Fuchsia
+ Do not check for CAP_NET_RAW on Fuchsia Fuchsia does not support capabilities the same way Linux does. Instead emulate the check for CAP_NET_RAW by checking if a packet socket may be created. Bug: https://fxbug.dev/79016, https://fxbug.dev/81592 PiperOrigin-RevId: 390263666
Diffstat (limited to 'test/syscalls/linux')
-rw-r--r--test/syscalls/linux/BUILD4
-rw-r--r--test/syscalls/linux/packet_socket.cc13
-rw-r--r--test/syscalls/linux/packet_socket_raw.cc42
-rw-r--r--test/syscalls/linux/raw_socket.cc122
-rw-r--r--test/syscalls/linux/raw_socket_hdrincl.cc4
-rw-r--r--test/syscalls/linux/raw_socket_icmp.cc26
6 files changed, 105 insertions, 106 deletions
diff --git a/test/syscalls/linux/BUILD b/test/syscalls/linux/BUILD
index 960421466..01ee432cb 100644
--- a/test/syscalls/linux/BUILD
+++ b/test/syscalls/linux/BUILD
@@ -7,6 +7,8 @@ package(
exports_files(
[
+ "packet_socket.cc",
+ "packet_socket_raw.cc",
"raw_socket.cc",
"raw_socket_hdrincl.cc",
"raw_socket_icmp.cc",
@@ -1446,6 +1448,7 @@ cc_binary(
deps = [
":unix_domain_socket_test_util",
"//test/util:capability_util",
+ "//test/util:cleanup",
"//test/util:file_descriptor",
"//test/util:socket_util",
"@com_google_absl//absl/base:core_headers",
@@ -1464,6 +1467,7 @@ cc_binary(
deps = [
":unix_domain_socket_test_util",
"//test/util:capability_util",
+ "//test/util:cleanup",
"//test/util:file_descriptor",
"//test/util:socket_util",
"@com_google_absl//absl/base:core_headers",
diff --git a/test/syscalls/linux/packet_socket.cc b/test/syscalls/linux/packet_socket.cc
index 98339277b..ca4ab0aad 100644
--- a/test/syscalls/linux/packet_socket.cc
+++ b/test/syscalls/linux/packet_socket.cc
@@ -14,13 +14,13 @@
#include <arpa/inet.h>
#include <ifaddrs.h>
-#include <linux/capability.h>
-#include <linux/if_arp.h>
-#include <linux/if_packet.h>
#include <net/ethernet.h>
+#include <net/if.h>
+#include <net/if_arp.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
+#include <netpacket/packet.h>
#include <poll.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
@@ -31,6 +31,7 @@
#include "absl/base/internal/endian.h"
#include "test/syscalls/linux/unix_domain_socket_test_util.h"
#include "test/util/capability_util.h"
+#include "test/util/cleanup.h"
#include "test/util/file_descriptor.h"
#include "test/util/socket_util.h"
#include "test/util/test_util.h"
@@ -85,7 +86,7 @@ void SendUDPMessage(int sock) {
// Send an IP packet and make sure ETH_P_<something else> doesn't pick it up.
TEST(BasicCookedPacketTest, WrongType) {
- if (!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW))) {
+ if (!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability())) {
ASSERT_THAT(socket(AF_PACKET, SOCK_DGRAM, ETH_P_PUP),
SyscallFailsWithErrno(EPERM));
GTEST_SKIP();
@@ -123,7 +124,7 @@ class CookedPacketTest : public ::testing::TestWithParam<int> {
};
void CookedPacketTest::SetUp() {
- if (!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW))) {
+ if (!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability())) {
ASSERT_THAT(socket(AF_PACKET, SOCK_DGRAM, htons(GetParam())),
SyscallFailsWithErrno(EPERM));
GTEST_SKIP();
@@ -149,7 +150,7 @@ void CookedPacketTest::SetUp() {
void CookedPacketTest::TearDown() {
// TearDown will be run even if we skip the test.
- if (ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW))) {
+ if (ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability())) {
EXPECT_THAT(close(socket_), SyscallSucceeds());
}
}
diff --git a/test/syscalls/linux/packet_socket_raw.cc b/test/syscalls/linux/packet_socket_raw.cc
index 07beb8ba0..61714d1da 100644
--- a/test/syscalls/linux/packet_socket_raw.cc
+++ b/test/syscalls/linux/packet_socket_raw.cc
@@ -13,14 +13,13 @@
// limitations under the License.
#include <arpa/inet.h>
-#include <linux/capability.h>
-#include <linux/filter.h>
-#include <linux/if_arp.h>
-#include <linux/if_packet.h>
#include <net/ethernet.h>
+#include <net/if.h>
+#include <net/if_arp.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
+#include <netpacket/packet.h>
#include <poll.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
@@ -32,6 +31,7 @@
#include "absl/base/internal/endian.h"
#include "test/syscalls/linux/unix_domain_socket_test_util.h"
#include "test/util/capability_util.h"
+#include "test/util/cleanup.h"
#include "test/util/file_descriptor.h"
#include "test/util/socket_util.h"
#include "test/util/test_util.h"
@@ -100,7 +100,7 @@ class RawPacketTest : public ::testing::TestWithParam<int> {
};
void RawPacketTest::SetUp() {
- if (!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW))) {
+ if (!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability())) {
ASSERT_THAT(socket(AF_PACKET, SOCK_RAW, htons(GetParam())),
SyscallFailsWithErrno(EPERM));
GTEST_SKIP();
@@ -150,7 +150,7 @@ void RawPacketTest::SetUp() {
void RawPacketTest::TearDown() {
// TearDown will be run even if we skip the test.
- if (ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW))) {
+ if (ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability())) {
EXPECT_THAT(close(s_), SyscallSucceeds());
}
}
@@ -340,7 +340,7 @@ TEST_P(RawPacketTest, Send) {
// Check that setting SO_RCVBUF below min is clamped to the minimum
// receive buffer size.
TEST_P(RawPacketTest, SetSocketRecvBufBelowMin) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability()));
// Discover minimum receive buf size by trying to set it to zero.
// See:
@@ -373,7 +373,7 @@ TEST_P(RawPacketTest, SetSocketRecvBufBelowMin) {
// Check that setting SO_RCVBUF above max is clamped to the maximum
// receive buffer size.
TEST_P(RawPacketTest, SetSocketRecvBufAboveMax) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability()));
// Discover max buf size by trying to set the largest possible buffer size.
constexpr int kRcvBufSz = 0xffffffff;
@@ -400,7 +400,7 @@ TEST_P(RawPacketTest, SetSocketRecvBufAboveMax) {
// Check that setting SO_RCVBUF min <= kRcvBufSz <= max is honored.
TEST_P(RawPacketTest, SetSocketRecvBuf) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability()));
int max = 0;
int min = 0;
@@ -449,7 +449,7 @@ TEST_P(RawPacketTest, SetSocketRecvBuf) {
// Check that setting SO_SNDBUF below min is clamped to the minimum
// receive buffer size.
TEST_P(RawPacketTest, SetSocketSendBufBelowMin) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability()));
// Discover minimum buffer size by trying to set it to zero.
constexpr int kSndBufSz = 0;
@@ -480,7 +480,7 @@ TEST_P(RawPacketTest, SetSocketSendBufBelowMin) {
// Check that setting SO_SNDBUF above max is clamped to the maximum
// send buffer size.
TEST_P(RawPacketTest, SetSocketSendBufAboveMax) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability()));
// Discover maximum buffer size by trying to set it to a large value.
constexpr int kSndBufSz = 0xffffffff;
@@ -507,7 +507,7 @@ TEST_P(RawPacketTest, SetSocketSendBufAboveMax) {
// Check that setting SO_SNDBUF min <= kSndBufSz <= max is honored.
TEST_P(RawPacketTest, SetSocketSendBuf) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability()));
int max = 0;
int min = 0;
@@ -551,7 +551,7 @@ TEST_P(RawPacketTest, SetSocketSendBuf) {
}
TEST_P(RawPacketTest, GetSocketError) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability()));
int val = 0;
socklen_t val_len = sizeof(val);
@@ -561,7 +561,7 @@ TEST_P(RawPacketTest, GetSocketError) {
}
TEST_P(RawPacketTest, GetSocketErrorBind) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability()));
{
// Bind to the loopback device.
@@ -627,7 +627,7 @@ TEST_P(RawPacketTest, SetSocketDetachFilterNoInstalledFilter) {
}
TEST_P(RawPacketTest, GetSocketDetachFilter) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability()));
int val = 0;
socklen_t val_len = sizeof(val);
@@ -636,7 +636,7 @@ TEST_P(RawPacketTest, GetSocketDetachFilter) {
}
TEST_P(RawPacketTest, SetAndGetSocketLinger) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability()));
int level = SOL_SOCKET;
int type = SO_LINGER;
@@ -657,7 +657,7 @@ TEST_P(RawPacketTest, SetAndGetSocketLinger) {
}
TEST_P(RawPacketTest, GetSocketAcceptConn) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability()));
int got = -1;
socklen_t length = sizeof(got);
@@ -673,7 +673,7 @@ INSTANTIATE_TEST_SUITE_P(AllInetTests, RawPacketTest,
class RawPacketMsgSizeTest : public ::testing::TestWithParam<TestAddress> {};
TEST_P(RawPacketMsgSizeTest, SendTooLong) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability()));
TestAddress addr = GetParam().WithPort(kPort);
@@ -690,8 +690,11 @@ TEST_P(RawPacketMsgSizeTest, SendTooLong) {
SyscallFailsWithErrno(EMSGSIZE));
}
+// TODO(https://fxbug.dev/76957): Run this test on Fuchsia once splice is
+// available.
+#ifndef __Fuchsia__
TEST_P(RawPacketMsgSizeTest, SpliceTooLong) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HavePacketSocketCapability()));
const char buf[65536] = {};
int fds[2];
@@ -718,6 +721,7 @@ TEST_P(RawPacketMsgSizeTest, SpliceTooLong) {
EXPECT_THAT(n, SyscallSucceedsWithValue(sizeof(buf)));
}
}
+#endif // __Fuchsia__
INSTANTIATE_TEST_SUITE_P(AllRawPacketMsgSizeTest, RawPacketMsgSizeTest,
::testing::Values(V4Loopback(), V6Loopback()));
diff --git a/test/syscalls/linux/raw_socket.cc b/test/syscalls/linux/raw_socket.cc
index 4e69e389b..66f0e6ca4 100644
--- a/test/syscalls/linux/raw_socket.cc
+++ b/test/syscalls/linux/raw_socket.cc
@@ -97,7 +97,7 @@ class RawSocketTest : public ::testing::TestWithParam<std::tuple<int, int>> {
};
void RawSocketTest::SetUp() {
- if (!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW))) {
+ if (!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability())) {
ASSERT_THAT(socket(Family(), SOCK_RAW, Protocol()),
SyscallFailsWithErrno(EPERM));
GTEST_SKIP();
@@ -121,7 +121,7 @@ void RawSocketTest::SetUp() {
void RawSocketTest::TearDown() {
// TearDown will be run even if we skip the test.
- if (ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW))) {
+ if (ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability())) {
EXPECT_THAT(close(s_), SyscallSucceeds());
}
}
@@ -130,7 +130,7 @@ void RawSocketTest::TearDown() {
// BasicRawSocket::Setup creates the first one, so we only have to create one
// more here.
TEST_P(RawSocketTest, MultipleCreation) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
int s2;
ASSERT_THAT(s2 = socket(Family(), SOCK_RAW, Protocol()), SyscallSucceeds());
@@ -140,7 +140,7 @@ TEST_P(RawSocketTest, MultipleCreation) {
// Test that shutting down an unconnected socket fails.
TEST_P(RawSocketTest, FailShutdownWithoutConnect) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
ASSERT_THAT(shutdown(s_, SHUT_WR), SyscallFailsWithErrno(ENOTCONN));
ASSERT_THAT(shutdown(s_, SHUT_RD), SyscallFailsWithErrno(ENOTCONN));
@@ -148,7 +148,7 @@ TEST_P(RawSocketTest, FailShutdownWithoutConnect) {
// Shutdown is a no-op for raw sockets (and datagram sockets in general).
TEST_P(RawSocketTest, ShutdownWriteNoop) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
ASSERT_THAT(
connect(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
@@ -163,7 +163,7 @@ TEST_P(RawSocketTest, ShutdownWriteNoop) {
// Shutdown is a no-op for raw sockets (and datagram sockets in general).
TEST_P(RawSocketTest, ShutdownReadNoop) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
ASSERT_THAT(
connect(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
@@ -180,14 +180,14 @@ TEST_P(RawSocketTest, ShutdownReadNoop) {
// Test that listen() fails.
TEST_P(RawSocketTest, FailListen) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
ASSERT_THAT(listen(s_, 1), SyscallFailsWithErrno(ENOTSUP));
}
// Test that accept() fails.
TEST_P(RawSocketTest, FailAccept) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
struct sockaddr saddr;
socklen_t addrlen;
@@ -195,7 +195,7 @@ TEST_P(RawSocketTest, FailAccept) {
}
TEST_P(RawSocketTest, BindThenGetSockName) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
struct sockaddr* addr = reinterpret_cast<struct sockaddr*>(&addr_);
ASSERT_THAT(bind(s_, addr, AddrLen()), SyscallSucceeds());
@@ -219,7 +219,7 @@ TEST_P(RawSocketTest, BindThenGetSockName) {
}
TEST_P(RawSocketTest, ConnectThenGetSockName) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
struct sockaddr* addr = reinterpret_cast<struct sockaddr*>(&addr_);
ASSERT_THAT(connect(s_, addr, AddrLen()), SyscallSucceeds());
@@ -244,7 +244,7 @@ TEST_P(RawSocketTest, ConnectThenGetSockName) {
// Test that getpeername() returns nothing before connect().
TEST_P(RawSocketTest, FailGetPeerNameBeforeConnect) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
struct sockaddr saddr;
socklen_t addrlen = sizeof(saddr);
@@ -254,7 +254,7 @@ TEST_P(RawSocketTest, FailGetPeerNameBeforeConnect) {
// Test that getpeername() returns something after connect().
TEST_P(RawSocketTest, GetPeerName) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
ASSERT_THAT(
connect(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
@@ -268,7 +268,7 @@ TEST_P(RawSocketTest, GetPeerName) {
// Test that the socket is writable immediately.
TEST_P(RawSocketTest, PollWritableImmediately) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
struct pollfd pfd = {};
pfd.fd = s_;
@@ -278,7 +278,7 @@ TEST_P(RawSocketTest, PollWritableImmediately) {
// Test that the socket isn't readable before receiving anything.
TEST_P(RawSocketTest, PollNotReadableInitially) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
// Try to receive data with MSG_DONTWAIT, which returns immediately if there's
// nothing to be read.
@@ -289,7 +289,7 @@ TEST_P(RawSocketTest, PollNotReadableInitially) {
// Test that the socket becomes readable once something is written to it.
TEST_P(RawSocketTest, PollTriggeredOnWrite) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
// Write something so that there's data to be read.
// Arbitrary.
@@ -304,7 +304,7 @@ TEST_P(RawSocketTest, PollTriggeredOnWrite) {
// Test that we can connect() to a valid IP (loopback).
TEST_P(RawSocketTest, ConnectToLoopback) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
ASSERT_THAT(
connect(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
@@ -313,7 +313,7 @@ TEST_P(RawSocketTest, ConnectToLoopback) {
// Test that calling send() without connect() fails.
TEST_P(RawSocketTest, SendWithoutConnectFails) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
// Arbitrary.
constexpr char kBuf[] = "Endgame was good";
@@ -323,7 +323,7 @@ TEST_P(RawSocketTest, SendWithoutConnectFails) {
// Wildcard Bind.
TEST_P(RawSocketTest, BindToWildcard) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
struct sockaddr_storage addr;
addr = {};
@@ -344,16 +344,15 @@ TEST_P(RawSocketTest, BindToWildcard) {
// Bind to localhost.
TEST_P(RawSocketTest, BindToLocalhost) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
- ASSERT_THAT(
- bind(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
- SyscallSucceeds());
+ ASSERT_THAT(bind(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
+ SyscallSucceeds());
}
// Bind to a different address.
TEST_P(RawSocketTest, BindToInvalid) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
struct sockaddr_storage bind_addr = addr_;
if (Family() == AF_INET) {
@@ -365,13 +364,14 @@ TEST_P(RawSocketTest, BindToInvalid) {
memset(&sin6->sin6_addr.s6_addr, 0, sizeof(sin6->sin6_addr.s6_addr));
sin6->sin6_addr.s6_addr[0] = 1; // 1: - An address that we can't bind to.
}
- ASSERT_THAT(bind(s_, reinterpret_cast<struct sockaddr*>(&bind_addr),
- AddrLen()), SyscallFailsWithErrno(EADDRNOTAVAIL));
+ ASSERT_THAT(
+ bind(s_, reinterpret_cast<struct sockaddr*>(&bind_addr), AddrLen()),
+ SyscallFailsWithErrno(EADDRNOTAVAIL));
}
// Send and receive an packet.
TEST_P(RawSocketTest, SendAndReceive) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
// Arbitrary.
constexpr char kBuf[] = "TB12";
@@ -386,7 +386,7 @@ TEST_P(RawSocketTest, SendAndReceive) {
// We should be able to create multiple raw sockets for the same protocol and
// receive the same packet on both.
TEST_P(RawSocketTest, MultipleSocketReceive) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
int s2;
ASSERT_THAT(s2 = socket(Family(), SOCK_RAW, Protocol()), SyscallSucceeds());
@@ -401,11 +401,11 @@ TEST_P(RawSocketTest, MultipleSocketReceive) {
// Receive it on socket 2.
std::vector<char> recv_buf2(sizeof(kBuf) + HdrLen());
- ASSERT_NO_FATAL_FAILURE(ReceiveBufFrom(s2, recv_buf2.data(),
- recv_buf2.size()));
+ ASSERT_NO_FATAL_FAILURE(
+ ReceiveBufFrom(s2, recv_buf2.data(), recv_buf2.size()));
- EXPECT_EQ(memcmp(recv_buf1.data() + HdrLen(),
- recv_buf2.data() + HdrLen(), sizeof(kBuf)),
+ EXPECT_EQ(memcmp(recv_buf1.data() + HdrLen(), recv_buf2.data() + HdrLen(),
+ sizeof(kBuf)),
0);
ASSERT_THAT(close(s2), SyscallSucceeds());
@@ -413,7 +413,7 @@ TEST_P(RawSocketTest, MultipleSocketReceive) {
// Test that connect sends packets to the right place.
TEST_P(RawSocketTest, SendAndReceiveViaConnect) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
ASSERT_THAT(
connect(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
@@ -432,11 +432,10 @@ TEST_P(RawSocketTest, SendAndReceiveViaConnect) {
// Bind to localhost, then send and receive packets.
TEST_P(RawSocketTest, BindSendAndReceive) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
- ASSERT_THAT(
- bind(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
- SyscallSucceeds());
+ ASSERT_THAT(bind(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
+ SyscallSucceeds());
// Arbitrary.
constexpr char kBuf[] = "DR16";
@@ -450,11 +449,10 @@ TEST_P(RawSocketTest, BindSendAndReceive) {
// Bind and connect to localhost and send/receive packets.
TEST_P(RawSocketTest, BindConnectSendAndReceive) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
- ASSERT_THAT(
- bind(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
- SyscallSucceeds());
+ ASSERT_THAT(bind(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
+ SyscallSucceeds());
ASSERT_THAT(
connect(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
SyscallSucceeds());
@@ -472,7 +470,7 @@ TEST_P(RawSocketTest, BindConnectSendAndReceive) {
// Check that setting SO_RCVBUF below min is clamped to the minimum
// receive buffer size.
TEST_P(RawSocketTest, SetSocketRecvBufBelowMin) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
// Discover minimum receive buf size by trying to set it to zero.
// See:
@@ -505,7 +503,7 @@ TEST_P(RawSocketTest, SetSocketRecvBufBelowMin) {
// Check that setting SO_RCVBUF above max is clamped to the maximum
// receive buffer size.
TEST_P(RawSocketTest, SetSocketRecvBufAboveMax) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
// Discover max buf size by trying to set the largest possible buffer size.
constexpr int kRcvBufSz = 0xffffffff;
@@ -532,7 +530,7 @@ TEST_P(RawSocketTest, SetSocketRecvBufAboveMax) {
// Check that setting SO_RCVBUF min <= kRcvBufSz <= max is honored.
TEST_P(RawSocketTest, SetSocketRecvBuf) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
int max = 0;
int min = 0;
@@ -582,7 +580,7 @@ TEST_P(RawSocketTest, SetSocketRecvBuf) {
// Check that setting SO_SNDBUF below min is clamped to the minimum
// receive buffer size.
TEST_P(RawSocketTest, SetSocketSendBufBelowMin) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
// Discover minimum buffer size by trying to set it to zero.
constexpr int kSndBufSz = 0;
@@ -613,7 +611,7 @@ TEST_P(RawSocketTest, SetSocketSendBufBelowMin) {
// Check that setting SO_SNDBUF above max is clamped to the maximum
// send buffer size.
TEST_P(RawSocketTest, SetSocketSendBufAboveMax) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
// Discover maximum buffer size by trying to set it to a large value.
constexpr int kSndBufSz = 0xffffffff;
@@ -640,7 +638,7 @@ TEST_P(RawSocketTest, SetSocketSendBufAboveMax) {
// Check that setting SO_SNDBUF min <= kSndBufSz <= max is honored.
TEST_P(RawSocketTest, SetSocketSendBuf) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
int max = 0;
int min = 0;
@@ -686,11 +684,10 @@ TEST_P(RawSocketTest, SetSocketSendBuf) {
// Test that receive buffer limits are not enforced when the recv buffer is
// empty.
TEST_P(RawSocketTest, RecvBufLimitsEmptyRecvBuffer) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
- ASSERT_THAT(
- bind(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
- SyscallSucceeds());
+ ASSERT_THAT(bind(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
+ SyscallSucceeds());
ASSERT_THAT(
connect(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
SyscallSucceeds());
@@ -717,9 +714,7 @@ TEST_P(RawSocketTest, RecvBufLimitsEmptyRecvBuffer) {
// Receive the packet and make sure it's identical.
std::vector<char> recv_buf(buf.size() + HdrLen());
ASSERT_NO_FATAL_FAILURE(ReceiveBuf(recv_buf.data(), recv_buf.size()));
- EXPECT_EQ(
- memcmp(recv_buf.data() + HdrLen(), buf.data(), buf.size()),
- 0);
+ EXPECT_EQ(memcmp(recv_buf.data() + HdrLen(), buf.data(), buf.size()), 0);
}
{
@@ -732,9 +727,7 @@ TEST_P(RawSocketTest, RecvBufLimitsEmptyRecvBuffer) {
// Receive the packet and make sure it's identical.
std::vector<char> recv_buf(buf.size() + HdrLen());
ASSERT_NO_FATAL_FAILURE(ReceiveBuf(recv_buf.data(), recv_buf.size()));
- EXPECT_EQ(
- memcmp(recv_buf.data() + HdrLen(), buf.data(), buf.size()),
- 0);
+ EXPECT_EQ(memcmp(recv_buf.data() + HdrLen(), buf.data(), buf.size()), 0);
}
}
@@ -748,11 +741,10 @@ TEST_P(RawSocketTest, RecvBufLimits) {
if (Protocol() == IPPROTO_TCP) {
return;
}
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
- ASSERT_THAT(
- bind(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
- SyscallSucceeds());
+ ASSERT_THAT(bind(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
+ SyscallSucceeds());
ASSERT_THAT(
connect(s_, reinterpret_cast<struct sockaddr*>(&addr_), AddrLen()),
SyscallSucceeds());
@@ -812,9 +804,7 @@ TEST_P(RawSocketTest, RecvBufLimits) {
// Receive the packet and make sure it's identical.
std::vector<char> recv_buf(buf.size() + HdrLen());
ASSERT_NO_FATAL_FAILURE(ReceiveBuf(recv_buf.data(), recv_buf.size()));
- EXPECT_EQ(memcmp(recv_buf.data() + HdrLen(), buf.data(),
- buf.size()),
- 0);
+ EXPECT_EQ(memcmp(recv_buf.data() + HdrLen(), buf.data(), buf.size()), 0);
}
// Assert that the last packet is dropped because the receive buffer should
@@ -883,7 +873,7 @@ TEST_P(RawSocketTest, GetSocketDetachFilter) {
// AF_INET6+SOCK_RAW+IPPROTO_RAW sockets can be created, but not written to.
TEST(RawSocketTest, IPv6ProtoRaw) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
int sock;
ASSERT_THAT(sock = socket(AF_INET6, SOCK_RAW, IPPROTO_RAW),
@@ -900,7 +890,7 @@ TEST(RawSocketTest, IPv6ProtoRaw) {
}
TEST(RawSocketTest, IPv6SendMsg) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
int sock;
ASSERT_THAT(sock = socket(AF_INET6, SOCK_RAW, IPPROTO_TCP),
@@ -928,7 +918,7 @@ TEST(RawSocketTest, IPv6SendMsg) {
}
TEST_P(RawSocketTest, ConnectOnIPv6Socket) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
int sock;
ASSERT_THAT(sock = socket(AF_INET6, SOCK_RAW, IPPROTO_TCP),
diff --git a/test/syscalls/linux/raw_socket_hdrincl.cc b/test/syscalls/linux/raw_socket_hdrincl.cc
index e54d781c9..d45bd07bc 100644
--- a/test/syscalls/linux/raw_socket_hdrincl.cc
+++ b/test/syscalls/linux/raw_socket_hdrincl.cc
@@ -62,7 +62,7 @@ class RawHDRINCL : public ::testing::Test {
};
void RawHDRINCL::SetUp() {
- if (!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW))) {
+ if (!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability())) {
ASSERT_THAT(socket(AF_INET, SOCK_RAW, IPPROTO_RAW),
SyscallFailsWithErrno(EPERM));
GTEST_SKIP();
@@ -80,7 +80,7 @@ void RawHDRINCL::SetUp() {
void RawHDRINCL::TearDown() {
// TearDown will be run even if we skip the test.
- if (ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW))) {
+ if (ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability())) {
EXPECT_THAT(close(socket_), SyscallSucceeds());
}
}
diff --git a/test/syscalls/linux/raw_socket_icmp.cc b/test/syscalls/linux/raw_socket_icmp.cc
index 80a524273..3f9717284 100644
--- a/test/syscalls/linux/raw_socket_icmp.cc
+++ b/test/syscalls/linux/raw_socket_icmp.cc
@@ -76,7 +76,7 @@ class RawSocketICMPTest : public ::testing::Test {
};
void RawSocketICMPTest::SetUp() {
- if (!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW))) {
+ if (!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability())) {
ASSERT_THAT(socket(AF_INET, SOCK_RAW, IPPROTO_ICMP),
SyscallFailsWithErrno(EPERM));
GTEST_SKIP();
@@ -94,7 +94,7 @@ void RawSocketICMPTest::SetUp() {
void RawSocketICMPTest::TearDown() {
// TearDown will be run even if we skip the test.
- if (ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW))) {
+ if (ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability())) {
EXPECT_THAT(close(s_), SyscallSucceeds());
}
}
@@ -102,7 +102,7 @@ void RawSocketICMPTest::TearDown() {
// We'll only read an echo in this case, as the kernel won't respond to the
// malformed ICMP checksum.
TEST_F(RawSocketICMPTest, SendAndReceiveBadChecksum) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
// Prepare and send an ICMP packet. Use arbitrary junk for checksum, sequence,
// and ID. None of that should matter for raw sockets - the kernel should
@@ -131,7 +131,7 @@ TEST_F(RawSocketICMPTest, SendAndReceiveBadChecksum) {
// Send and receive an ICMP packet.
TEST_F(RawSocketICMPTest, SendAndReceive) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
// Prepare and send an ICMP packet. Use arbitrary junk for sequence and ID.
// None of that should matter for raw sockets - the kernel should still give
@@ -151,7 +151,7 @@ TEST_F(RawSocketICMPTest, SendAndReceive) {
// We should be able to create multiple raw sockets for the same protocol and
// receive the same packet on both.
TEST_F(RawSocketICMPTest, MultipleSocketReceive) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
FileDescriptor s2 =
ASSERT_NO_ERRNO_AND_VALUE(Socket(AF_INET, SOCK_RAW, IPPROTO_ICMP));
@@ -214,7 +214,7 @@ TEST_F(RawSocketICMPTest, MultipleSocketReceive) {
// A raw ICMP socket and ping socket should both receive the ICMP packets
// intended for the ping socket.
TEST_F(RawSocketICMPTest, RawAndPingSockets) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
FileDescriptor ping_sock =
ASSERT_NO_ERRNO_AND_VALUE(Socket(AF_INET, SOCK_DGRAM, IPPROTO_ICMP));
@@ -264,7 +264,7 @@ TEST_F(RawSocketICMPTest, RawAndPingSockets) {
// while a ping socket should not. Neither should be able to receieve a short
// malformed packet.
TEST_F(RawSocketICMPTest, ShortEchoRawAndPingSockets) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
FileDescriptor ping_sock =
ASSERT_NO_ERRNO_AND_VALUE(Socket(AF_INET, SOCK_DGRAM, IPPROTO_ICMP));
@@ -305,7 +305,7 @@ TEST_F(RawSocketICMPTest, ShortEchoRawAndPingSockets) {
// while ping socket should not.
// Neither should be able to receieve a short malformed packet.
TEST_F(RawSocketICMPTest, ShortEchoReplyRawAndPingSockets) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
FileDescriptor ping_sock =
ASSERT_NO_ERRNO_AND_VALUE(Socket(AF_INET, SOCK_DGRAM, IPPROTO_ICMP));
@@ -344,7 +344,7 @@ TEST_F(RawSocketICMPTest, ShortEchoReplyRawAndPingSockets) {
// Test that connect() sends packets to the right place.
TEST_F(RawSocketICMPTest, SendAndReceiveViaConnect) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
ASSERT_THAT(
connect(s_, reinterpret_cast<struct sockaddr*>(&addr_), sizeof(addr_)),
@@ -368,7 +368,7 @@ TEST_F(RawSocketICMPTest, SendAndReceiveViaConnect) {
// Bind to localhost, then send and receive packets.
TEST_F(RawSocketICMPTest, BindSendAndReceive) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
ASSERT_THAT(
bind(s_, reinterpret_cast<struct sockaddr*>(&addr_), sizeof(addr_)),
@@ -391,7 +391,7 @@ TEST_F(RawSocketICMPTest, BindSendAndReceive) {
// Bind and connect to localhost and send/receive packets.
TEST_F(RawSocketICMPTest, BindConnectSendAndReceive) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
ASSERT_THAT(
bind(s_, reinterpret_cast<struct sockaddr*>(&addr_), sizeof(addr_)),
@@ -417,7 +417,7 @@ TEST_F(RawSocketICMPTest, BindConnectSendAndReceive) {
// Set and get SO_LINGER.
TEST_F(RawSocketICMPTest, SetAndGetSocketLinger) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
int level = SOL_SOCKET;
int type = SO_LINGER;
@@ -439,7 +439,7 @@ TEST_F(RawSocketICMPTest, SetAndGetSocketLinger) {
// Test getsockopt for SO_ACCEPTCONN.
TEST_F(RawSocketICMPTest, GetSocketAcceptConn) {
- SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_NET_RAW)));
+ SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveRawIPSocketCapability()));
int got = -1;
socklen_t length = sizeof(got);