diff options
5 files changed, 157 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-cookie-not-reqd.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-cookie-not-reqd.pkt new file mode 100644 index 000000000000..32aff9bc4052 --- /dev/null +++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-cookie-not-reqd.pkt @@ -0,0 +1,32 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Basic TFO server test +// +// Test TFO_SERVER_COOKIE_NOT_REQD flag on receiving +// SYN with data but without Fast Open cookie option. + +`./defaults.sh + ./set_sysctls.py /proc/sys/net/ipv4/tcp_fastopen=0x202` + + 0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3 + +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 + +0 bind(3, ..., ...) = 0 + +0 listen(3, 1) = 0 + +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0 + +// Since TFO_SERVER_COOKIE_NOT_REQD, a TFO socket will be created with +// the data accepted. + +0 < S 0:1000(1000) win 32792 <mss 1460,sackOK,nop,nop> + +0 > S. 0:0(0) ack 1001 <mss 1460,nop,nop,sackOK> + +0 accept(3, ..., ...) = 4 + +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }% + +0 read(4, ..., 1024) = 1000 + +// Data After SYN will be accepted too. + +0 < . 1001:2001(1000) ack 1 win 5840 + +0 > . 1:1(0) ack 2001 + +// Should change the implementation later to set the SYN flag as well. + +0 read(4, ..., 1024) = 1000 + +0 write(4, ..., 1000) = 1000 + +0 > P. 1:1001(1000) ack 2001 diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-non-tfo-listener.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-non-tfo-listener.pkt new file mode 100644 index 000000000000..4a00e0d994f2 --- /dev/null +++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-non-tfo-listener.pkt @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Basic TFO server test +// +// Server w/o TCP_FASTOPEN socket option + +`./defaults.sh` + + 0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3 + +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 + +0 bind(3, ..., ...) = 0 + +0 listen(3, 1) = 0 + + +0 < S 0:10(10) win 32792 <mss 1460,sackOK,FO TFO_COOKIE> + +// Data is ignored since TCP_FASTOPEN is not set on the listener + +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK> + + +0 accept(3, ..., ...) = -1 EAGAIN (Resource temporarily unavailable) + +// The above should block until ack comes in below. + +0 < . 1:31(30) ack 1 win 5840 + +0 accept(3, ..., ...) = 4 + + +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) == 0, tcpi_options }% + +0 read(4, ..., 512) = 30 diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-pure-syn-data.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-pure-syn-data.pkt new file mode 100644 index 000000000000..345ed26ff7f8 --- /dev/null +++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-pure-syn-data.pkt @@ -0,0 +1,50 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Basic TFO server test +// +// Test that TFO-enabled server would not respond SYN-ACK with any TFO option +// when receiving a pure SYN-data. It should respond a pure SYN-ack. + +`./defaults.sh` + + 0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3 + +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 + +0 bind(3, ..., ...) = 0 + +0 listen(3, 1) = 0 + +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0 + + +0 < S 999000:999040(40) win 32792 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 6> + +0 > S. 1234:1234(0) ack 999001 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 8> + +0 < . 1:1(0) ack 1 win 100 + +0 accept(3, ..., ...) = 4 + +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) == 0, tcpi_options }% + +0 close(3) = 0 + +// Test ECN-setup SYN with ECN disabled because this has happened in reality + +0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3 + +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 + +0 bind(3, ..., ...) = 0 + +0 listen(3, 1) = 0 + +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0 + + +0 < SEW 999000:999040(40) win 32792 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 6> + +0 > S. 1234:1234(0) ack 999001 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 8> + +0 < . 1:1(0) ack 1 win 100 + +0 accept(3, ..., ...) = 4 + +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) == 0, tcpi_options }% + +0 close(3) = 0 + +// Test ECN-setup SYN w/ ECN enabled + +0 `sysctl -q net.ipv4.tcp_ecn=2` + +0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3 + +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 + +0 bind(3, ..., ...) = 0 + +0 listen(3, 1) = 0 + +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0 + + +0 < SEW 999000:999040(40) win 32792 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 6> + +0 > SE. 1234:1234(0) ack 999001 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 8> + +0 < . 1:1(0) ack 1 win 100 + +0 accept(3, ..., ...) = 4 + +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) == 0, tcpi_options }% + +0 close(3) = 0 diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-rw.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-rw.pkt new file mode 100644 index 000000000000..98e6f84497cd --- /dev/null +++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-rw.pkt @@ -0,0 +1,23 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Basic TFO server test +// +// Test TFO server with SYN that has TFO cookie and data. + +`./defaults.sh` + + 0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3 + +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 + +0 bind(3, ..., ...) = 0 + +0 listen(3, 1) = 0 + +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0 + + +0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop,FO TFO_COOKIE,nop,nop> + +0 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK> + + +0 accept(3, ..., ...) = 4 + +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }% + + +0 read(4, ..., 512) = 10 + +0 write(4, ..., 100) = 100 + +0 > P. 1:101(100) ack 11 diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-zero-payload.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-zero-payload.pkt new file mode 100644 index 000000000000..95b1047ffdd5 --- /dev/null +++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-zero-payload.pkt @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Basic TFO server test +// +// Test zero-payload packet w/ valid TFO cookie - a TFO socket will +// still be created and accepted but read() will not return until a +// later pkt with 10 byte. + +`./defaults.sh` + + 0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3 + +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 + +0 bind(3, ..., ...) = 0 + +0 listen(3, 1) = 0 + +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0 + + +0 < S 0:0(0) win 32792 <mss 1460,sackOK,nop,nop,FO TFO_COOKIE,nop,nop> + +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK> + +0 accept(3, ..., ...) = 4 + +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) == 0, tcpi_options }% + +// A TFO socket is created and is writable. + +0 write(4, ..., 100) = 100 + +0 > P. 1:101(100) ack 1 + +0...0.300 read(4, ..., 512) = 10 + +.3 < P. 1:11(10) ack 1 win 5840 |