diff options
| author | Kuniyuki Iwashima <kuniyu@google.com> | 2025-09-28 00:29:41 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-09-30 04:41:19 +0300 |
| commit | 97b3b8306f782af80b4666d7137c75be9dba9219 (patch) | |
| tree | ea23a9180cbfdbc9ab66694f6959332fb7ac9239 /tools/testing/selftests/net | |
| parent | 261cb8b12376d1c06c2840280fc602dc065ed924 (diff) | |
| download | linux-97b3b8306f782af80b4666d7137c75be9dba9219.tar.xz | |
selftest: packetdrill: Define common TCP Fast Open cookie.
TCP Fast Open cookie is generated in __tcp_fastopen_cookie_gen_cipher().
The cookie value is generated from src/dst IPs and a key configured by
setsockopt(TCP_FASTOPEN_KEY) or net.ipv4.tcp_fastopen_key.
The default.sh sets net.ipv4.tcp_fastopen_key, and the original packetdrill
defines the corresponding cookie as TFO_COOKIE in run_all.py. [0]
Then, each test does not need to care about the value, and we can easily
update TFO_COOKIE in case __tcp_fastopen_cookie_gen_cipher() changes the
algorithm.
However, some tests use the bare hex value for specific IPv4 addresses
and do not support IPv6.
Let's define the same TFO_COOKIE in ksft_runner.sh.
We will replace such bare hex values with TFO_COOKIE except for a single
test for setsockopt(TCP_FASTOPEN_KEY).
Link: https://github.com/google/packetdrill/blob/7230b3990f94/gtests/net/packetdrill/run_all.py#L65 #[0]
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250927213022.1850048-4-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/testing/selftests/net')
| -rwxr-xr-x | tools/testing/selftests/net/packetdrill/defaults.sh | 1 | ||||
| -rwxr-xr-x | tools/testing/selftests/net/packetdrill/ksft_runner.sh | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/packetdrill/defaults.sh b/tools/testing/selftests/net/packetdrill/defaults.sh index 34fcafefa344..37edd3dc3b07 100755 --- a/tools/testing/selftests/net/packetdrill/defaults.sh +++ b/tools/testing/selftests/net/packetdrill/defaults.sh @@ -52,6 +52,7 @@ sysctl -q net.ipv4.tcp_pacing_ca_ratio=120 sysctl -q net.ipv4.tcp_notsent_lowat=4294967295 > /dev/null 2>&1 sysctl -q net.ipv4.tcp_fastopen=0x3 +# Use TFO_COOKIE in ksft_runner.sh for this key. sysctl -q net.ipv4.tcp_fastopen_key=a1a1a1a1-b2b2b2b2-c3c3c3c3-d4d4d4d4 sysctl -q net.ipv4.tcp_syncookies=1 diff --git a/tools/testing/selftests/net/packetdrill/ksft_runner.sh b/tools/testing/selftests/net/packetdrill/ksft_runner.sh index 3fa7c7f66caf..cc672bf5f58a 100755 --- a/tools/testing/selftests/net/packetdrill/ksft_runner.sh +++ b/tools/testing/selftests/net/packetdrill/ksft_runner.sh @@ -9,6 +9,7 @@ declare -A ip_args=( --gateway_ip=192.168.0.1 --netmask_ip=255.255.0.0 --remote_ip=192.0.2.1 + -D TFO_COOKIE=3021b9d889017eeb -D CMSG_LEVEL_IP=SOL_IP -D CMSG_TYPE_RECVERR=IP_RECVERR" [ipv6]="--ip_version=ipv6 @@ -16,6 +17,7 @@ declare -A ip_args=( --local_ip=fd3d:0a0b:17d6::1 --gateway_ip=fd3d:0a0b:17d6:8888::1 --remote_ip=fd3d:fa7b:d17d::1 + -D TFO_COOKIE=c1d1e9742a47a9bc -D CMSG_LEVEL_IP=SOL_IPV6 -D CMSG_TYPE_RECVERR=IPV6_RECVERR" ) |