diff options
Diffstat (limited to 'tools/testing/selftests/net/packetdrill/tcp_inq_server.pkt')
| -rw-r--r-- | tools/testing/selftests/net/packetdrill/tcp_inq_server.pkt | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/packetdrill/tcp_inq_server.pkt b/tools/testing/selftests/net/packetdrill/tcp_inq_server.pkt new file mode 100644 index 000000000000..04a5e2590c62 --- /dev/null +++ b/tools/testing/selftests/net/packetdrill/tcp_inq_server.pkt @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: GPL-2.0 +// Test TCP_INQ and TCP_CM_INQ on the server side. +`./defaults.sh +` + +// Initialize connection + 0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3 + +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 + +0 bind(3, ..., ...) = 0 + +0 listen(3, 1) = 0 + + +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 10> + +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8> + +.01 < . 1:1(0) ack 1 win 514 + +// Accept the connection and enable TCP_INQ. + +0 accept(3, ..., ...) = 4 + +0 setsockopt(4, SOL_TCP, TCP_INQ, [1], 4) = 0 + +// Now we have 10K of data ready on the socket. + +0 < . 1:10001(10000) ack 1 win 514 + +0 > . 1:1(0) ack 10001 + +// We read 2K and we should have 8K ready to read. + +0 recvmsg(4, {msg_name(...)=..., + msg_iov(1)=[{..., 2000}], + msg_flags=0, + msg_control=[{cmsg_level=SOL_TCP, + cmsg_type=TCP_CM_INQ, + cmsg_data=8000}]}, 0) = 2000 +// We read 8K and we should have no further data ready to read. + +0 recvmsg(4, {msg_name(...)=..., + msg_iov(1)=[{..., 8000}], + msg_flags=0, + msg_control=[{cmsg_level=SOL_TCP, + cmsg_type=TCP_CM_INQ, + cmsg_data=0}]}, 0) = 8000 +// Client sends more data and closes the connections. + +0 < F. 10001:20001(10000) ack 1 win 514 + +0 > . 1:1(0) ack 20002 + +// We read 10K and we should have one "fake" byte because the connection is +// closed. + +0 recvmsg(4, {msg_name(...)=..., + msg_iov(1)=[{..., 10000}], + msg_flags=0, + msg_control=[{cmsg_level=SOL_TCP, + cmsg_type=TCP_CM_INQ, + cmsg_data=1}]}, 0) = 10000 +// Now, receive error. + +0 read(3, ..., 2000) = -1 ENOTCONN (Transport endpoint is not connected) |