Reengineer the socket splicing regression tests:

- Move the tests from splice to new sosplice directory for consistent naming.
- Split the API tests and the TCP splicing tests into separate directories.
- Create some tests for the upcoming UDP splicing.
- Tests can be run in obj directories now.
- The API tests can run both on a local and on a remote machine now.
- Fix the forking TCP tests which splice and read or write simultaneously.
- Bunch of little fixes for races in the tests.
- Deduplicate code, move checks into common functions.

1 files changed, 21 insertions, 0 deletions

diff --git a/regress/sys/kern/sosplice/tcp/args-oob-max.pl b/regress/sys/kern/sosplice/tcp/args-oob-max.pl
new file mode 100644
index 00000000000..a46786338ba
--- /dev/null
+++ b/regress/sys/kern/sosplice/tcp/args-oob-max.pl
@@ -0,0 +1,21 @@
+# test out-of-band data with maximum data length
+
+use strict;
+use warnings;
+
+our %args = (
+    client => {
+	func => sub { errignore(@_); write_oob(@_); },
+	nocheck => 1,
+    },
+    relay => {
+	max => 61,
+	nocheck => 1,
+    },
+    server => {
+	func => \&read_oob,
+    },
+    len => 61,
+    md5 => "e4282daf8d2ca21cc8b70b1314713314",
+    noecho => 1,
+);