diff options
Diffstat (limited to 'tools/testing/selftests/net/packetdrill')
9 files changed, 211 insertions, 14 deletions
diff --git a/tools/testing/selftests/net/packetdrill/ksft_runner.sh b/tools/testing/selftests/net/packetdrill/ksft_runner.sh index ef8b25a606d81..a7e790af38ffc 100755 --- a/tools/testing/selftests/net/packetdrill/ksft_runner.sh +++ b/tools/testing/selftests/net/packetdrill/ksft_runner.sh @@ -35,20 +35,7 @@ failfunc=ktap_test_fail if [[ -n "${KSFT_MACHINE_SLOW}" ]]; then optargs+=('--tolerance_usecs=14000') - - # xfail tests that are known flaky with dbg config, not fixable. - # still run them for coverage (and expect 100% pass without dbg). - declare -ar xfail_list=( - "tcp_eor_no-coalesce-retrans.pkt" - "tcp_fast_recovery_prr-ss.*.pkt" - "tcp_slow_start_slow-start-after-win-update.pkt" - "tcp_timestamping.*.pkt" - "tcp_user_timeout_user-timeout-probe.pkt" - "tcp_zerocopy_epoll_.*.pkt" - "tcp_tcp_info_tcp-info-.*-limited.pkt" - ) - readonly xfail_regex="^($(printf '%s|' "${xfail_list[@]}"))$" - [[ "$script" =~ ${xfail_regex} ]] && failfunc=ktap_test_xfail + failfunc=ktap_test_xfail fi ktap_print_header diff --git a/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-read.pkt b/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-read.pkt index 914eabab367ae..657e42ca65b5d 100644 --- a/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-read.pkt +++ b/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-read.pkt @@ -1,6 +1,8 @@ // SPDX-License-Identifier: GPL-2.0 // Test for blocking read. + --tolerance_usecs=10000 +--mss=1000 `./defaults.sh` diff --git a/tools/testing/selftests/net/packetdrill/tcp_dsack_mult.pkt b/tools/testing/selftests/net/packetdrill/tcp_dsack_mult.pkt new file mode 100644 index 0000000000000..c790d0af635eb --- /dev/null +++ b/tools/testing/selftests/net/packetdrill/tcp_dsack_mult.pkt @@ -0,0 +1,45 @@ +// SPDX-License-Identifier: GPL-2.0 +// Test various DSACK (RFC 2883) behaviors. + +--mss=1000 + +`./defaults.sh` + + + 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 7> + +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8> + +.1 < . 1:1(0) ack 1 win 1024 + +0 accept(3, ..., ...) = 4 + +// First SACK range. + +0 < P. 1001:2001(1000) ack 1 win 1024 + +0 > . 1:1(0) ack 1 <nop, nop, sack 1001:2001> + +// Check SACK coalescing (contiguous sequence). + +0 < P. 2001:3001(1000) ack 1 win 1024 + +0 > . 1:1(0) ack 1 <nop,nop,sack 1001:3001> + +// Check we have two SACK ranges for non contiguous sequences. + +0 < P. 4001:5001(1000) ack 1 win 1024 + +0 > . 1:1(0) ack 1 <nop,nop,sack 4001:5001 1001:3001> + +// Three ranges. + +0 < P. 7001:8001(1000) ack 1 win 1024 + +0 > . 1:1(0) ack 1 <nop,nop,sack 7001:8001 4001:5001 1001:3001> + +// DSACK (1001:3001) + SACK (6001:7001) + +0 < P. 1:6001(6000) ack 1 win 1024 + +0 > . 1:1(0) ack 6001 <nop,nop,sack 1001:3001 7001:8001> + +// DSACK (7001:8001) + +0 < P. 6001:8001(2000) ack 1 win 1024 + +0 > . 1:1(0) ack 8001 <nop,nop,sack 7001:8001> + +// DSACK for an older segment. + +0 < P. 1:1001(1000) ack 1 win 1024 + +0 > . 1:1(0) ack 8001 <nop,nop,sack 1:1001> diff --git a/tools/testing/selftests/net/packetdrill/tcp_inq_client.pkt b/tools/testing/selftests/net/packetdrill/tcp_inq_client.pkt index df49c67645ac8..e13f0eee97952 100644 --- a/tools/testing/selftests/net/packetdrill/tcp_inq_client.pkt +++ b/tools/testing/selftests/net/packetdrill/tcp_inq_client.pkt @@ -1,5 +1,8 @@ // SPDX-License-Identifier: GPL-2.0 // Test TCP_INQ and TCP_CM_INQ on the client side. + +--mss=1000 + `./defaults.sh ` diff --git a/tools/testing/selftests/net/packetdrill/tcp_inq_server.pkt b/tools/testing/selftests/net/packetdrill/tcp_inq_server.pkt index 04a5e2590c62c..14dd5f813d50e 100644 --- a/tools/testing/selftests/net/packetdrill/tcp_inq_server.pkt +++ b/tools/testing/selftests/net/packetdrill/tcp_inq_server.pkt @@ -1,5 +1,8 @@ // SPDX-License-Identifier: GPL-2.0 // Test TCP_INQ and TCP_CM_INQ on the server side. + +--mss=1000 + `./defaults.sh ` diff --git a/tools/testing/selftests/net/packetdrill/tcp_ooo-before-and-after-accept.pkt b/tools/testing/selftests/net/packetdrill/tcp_ooo-before-and-after-accept.pkt new file mode 100644 index 0000000000000..09aabc775e80a --- /dev/null +++ b/tools/testing/selftests/net/packetdrill/tcp_ooo-before-and-after-accept.pkt @@ -0,0 +1,53 @@ +// SPDX-License-Identifier: GPL-2.0 + +--mss=1000 + +`./defaults.sh +sysctl -q net.ipv4.tcp_rmem="4096 131072 $((32*1024*1024))"` + +// Test that a not-yet-accepted socket does not change +// its initial sk_rcvbuf (tcp_rmem[1]) when receiving ooo packets. + + +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 65535 <mss 1000,nop,nop,sackOK,nop,wscale 7> + +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 10> + +.1 < . 1:1(0) ack 1 win 257 + +0 < . 2001:41001(39000) ack 1 win 257 + +0 > . 1:1(0) ack 1 <nop,nop,sack 2001:41001> + +0 < . 41001:101001(60000) ack 1 win 257 + +0 > . 1:1(0) ack 1 <nop,nop,sack 2001:101001> + +0 < . 1:1001(1000) ack 1 win 257 + +0 > . 1:1(0) ack 1001 <nop,nop,sack 2001:101001> + +0 < . 1001:2001(1000) ack 1 win 257 + +0 > . 1:1(0) ack 101001 + + +0 accept(3, ..., ...) = 4 + + +0 %{ assert SK_MEMINFO_RCVBUF == 131072, SK_MEMINFO_RCVBUF }% + + +0 close(4) = 0 + +0 close(3) = 0 + +// Test that ooo packets for accepted sockets do increase sk_rcvbuf + +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 65535 <mss 1000,nop,nop,sackOK,nop,wscale 7> + +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 10> + +.1 < . 1:1(0) ack 1 win 257 + + +0 accept(3, ..., ...) = 4 + + +0 < . 2001:41001(39000) ack 1 win 257 + +0 > . 1:1(0) ack 1 <nop,nop,sack 2001:41001> + +0 < . 41001:101001(60000) ack 1 win 257 + +0 > . 1:1(0) ack 1 <nop,nop,sack 2001:101001> + + +0 %{ assert SK_MEMINFO_RCVBUF > 131072, SK_MEMINFO_RCVBUF }% + diff --git a/tools/testing/selftests/net/packetdrill/tcp_ooo_rcv_mss.pkt b/tools/testing/selftests/net/packetdrill/tcp_ooo_rcv_mss.pkt new file mode 100644 index 0000000000000..7e6bc5fb0c8d7 --- /dev/null +++ b/tools/testing/selftests/net/packetdrill/tcp_ooo_rcv_mss.pkt @@ -0,0 +1,27 @@ +// SPDX-License-Identifier: GPL-2.0 + +--mss=1000 + +`./defaults.sh +sysctl -q net.ipv4.tcp_rmem="4096 131072 $((32*1024*1024))"` + + +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 65535 <mss 1000,nop,nop,sackOK,nop,wscale 7> + +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 10> + +.1 < . 1:1(0) ack 1 win 257 + + +0 accept(3, ..., ...) = 4 + + +0 < . 2001:11001(9000) ack 1 win 257 + +0 > . 1:1(0) ack 1 win 81 <nop,nop,sack 2001:11001> + +// check that ooo packet properly updates tcpi_rcv_mss + +0 %{ assert tcpi_rcv_mss == 1000, tcpi_rcv_mss }% + + +0 < . 11001:21001(10000) ack 1 win 257 + +0 > . 1:1(0) ack 1 win 81 <nop,nop,sack 2001:21001> + diff --git a/tools/testing/selftests/net/packetdrill/tcp_rcv_big_endseq.pkt b/tools/testing/selftests/net/packetdrill/tcp_rcv_big_endseq.pkt new file mode 100644 index 0000000000000..3848b419e68c3 --- /dev/null +++ b/tools/testing/selftests/net/packetdrill/tcp_rcv_big_endseq.pkt @@ -0,0 +1,44 @@ +// SPDX-License-Identifier: GPL-2.0 + +--mss=1000 + +`./defaults.sh` + + 0 `nstat -n` + +// Establish a connection. + +0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3 + +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 + +0 setsockopt(3, SOL_SOCKET, SO_RCVBUF, [10000], 4) = 0 + +0 bind(3, ..., ...) = 0 + +0 listen(3, 1) = 0 + + +0 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7> + +0 > S. 0:0(0) ack 1 <mss 1460,nop,wscale 0> + +.1 < . 1:1(0) ack 1 win 257 + + +0 accept(3, ..., ...) = 4 + + +0 < P. 1:4001(4000) ack 1 win 257 + +0 > . 1:1(0) ack 4001 win 5000 + +// packet in sequence : SKB_DROP_REASON_TCP_INVALID_END_SEQUENCE / LINUX_MIB_BEYOND_WINDOW + +0 < P. 4001:54001(50000) ack 1 win 257 + +0 > . 1:1(0) ack 4001 win 5000 + +// ooo packet. : SKB_DROP_REASON_TCP_INVALID_END_SEQUENCE / LINUX_MIB_BEYOND_WINDOW + +1 < P. 5001:55001(50000) ack 1 win 257 + +0 > . 1:1(0) ack 4001 win 5000 + +// SKB_DROP_REASON_TCP_INVALID_SEQUENCE / LINUX_MIB_BEYOND_WINDOW + +0 < P. 70001:80001(10000) ack 1 win 257 + +0 > . 1:1(0) ack 4001 win 5000 + + +0 read(4, ..., 100000) = 4000 + +// If queue is empty, accept a packet even if its end_seq is above wup + rcv_wnd + +0 < P. 4001:54001(50000) ack 1 win 257 + +0 > . 1:1(0) ack 54001 win 0 + +// Check LINUX_MIB_BEYOND_WINDOW has been incremented 3 times. ++0 `nstat | grep TcpExtBeyondWindow | grep -q " 3 "` diff --git a/tools/testing/selftests/net/packetdrill/tcp_rcv_toobig.pkt b/tools/testing/selftests/net/packetdrill/tcp_rcv_toobig.pkt new file mode 100644 index 0000000000000..f575c0ff89da3 --- /dev/null +++ b/tools/testing/selftests/net/packetdrill/tcp_rcv_toobig.pkt @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0 + +--mss=1000 + +`./defaults.sh` + + 0 `nstat -n` + +// Establish a connection. + +0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3 + +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 + +0 setsockopt(3, SOL_SOCKET, SO_RCVBUF, [20000], 4) = 0 + +0 bind(3, ..., ...) = 0 + +0 listen(3, 1) = 0 + + +0 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7> + +0 > S. 0:0(0) ack 1 win 18980 <mss 1460,nop,wscale 0> + +.1 < . 1:1(0) ack 1 win 257 + + +0 accept(3, ..., ...) = 4 + + +0 < P. 1:20001(20000) ack 1 win 257 + +.04 > . 1:1(0) ack 20001 win 18000 + + +0 setsockopt(4, SOL_SOCKET, SO_RCVBUF, [12000], 4) = 0 + +0 < P. 20001:80001(60000) ack 1 win 257 + +0 > . 1:1(0) ack 20001 win 18000 + + +0 read(4, ..., 20000) = 20000 +// A too big packet is accepted if the receive queue is empty + +0 < P. 20001:80001(60000) ack 1 win 257 + +0 > . 1:1(0) ack 80001 win 0 + |