diff options
| author |   Kuniyuki Iwashima <kuniyu@amazon.co.jp> | 2020-03-10 17:05:27 +0900 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-03-12 12:08:09 -0700 |
| commit | 7f204a7de8b08542aca3c1daa96ed20e1177ba87 (patch) | |
| tree | 46fadd2182ac940b8f992ca32d32eb017eca43b4 /tools/testing/selftests/net/.gitignore | |
| parent | tcp: Forbid to bind more than one sockets haveing SO_REUSEADDR and SO_REUSEPORT per EUID. (diff) | |
| download | wireguard-linux-7f204a7de8b08542aca3c1daa96ed20e1177ba87.tar.xz wireguard-linux-7f204a7de8b08542aca3c1daa96ed20e1177ba87.zip | |
selftests: net: Add SO_REUSEADDR test to check if 4-tuples are fully utilized.
This commit adds a test to check if we can fully utilize 4-tuples for
connect() when all ephemeral ports are exhausted.
The test program changes the local port range to use only one port and binds
two sockets with or without SO_REUSEADDR and SO_REUSEPORT, and with the same
EUID or with different EUIDs, then do listen().
We should be able to bind only one socket having both SO_REUSEADDR and
SO_REUSEPORT per EUID, which restriction is to prevent unintentional
listen().
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/testing/selftests/net/.gitignore')
| -rw-r--r-- | tools/testing/selftests/net/.gitignore | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/.gitignore b/tools/testing/selftests/net/.gitignore index ecc52d4c034d..91f9aea853b1 100644 --- a/tools/testing/selftests/net/.gitignore +++ b/tools/testing/selftests/net/.gitignore @@ -23,3 +23,4 @@ so_txtime tcp_fastopen_backup_key nettest fin_ack_lat +reuseaddr_ports_exhausted
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