[nft PATCH] tests: shell: Add socat availability feature test

[Phil Sutter <phil@nwl.cc>]

Several tests did this manually and skipped if unavail, others just
implicitly depended on the tool.

Note that for the sake of simplicity, this will skip
packetpath/tcp_options test entirely when it did a partial run before.

Signed-off-by: Phil Sutter <phil@nwl.cc>
---
 tests/shell/features/socat.sh                  | 4 ++++
 tests/shell/testcases/packetpath/cgroupv2      | 7 ++-----
 tests/shell/testcases/packetpath/flowtables    | 1 +
 tests/shell/testcases/packetpath/match_l4proto | 1 +
 tests/shell/testcases/packetpath/payload       | 1 +
 tests/shell/testcases/packetpath/tcp_options   | 9 +--------
 tests/shell/testcases/packetpath/tcp_reset     | 4 ++--
 7 files changed, 12 insertions(+), 15 deletions(-)
 create mode 100755 tests/shell/features/socat.sh

diff --git a/tests/shell/features/socat.sh b/tests/shell/features/socat.sh
new file mode 100755
index 0000000000000..93cad6f20d2ee
--- /dev/null
+++ b/tests/shell/features/socat.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+# check whether socat is installed
+socat -h >/dev/null 2>&1
diff --git a/tests/shell/testcases/packetpath/cgroupv2 b/tests/shell/testcases/packetpath/cgroupv2
index 5c5bea0c903d3..65916e9db1e8c 100755
--- a/tests/shell/testcases/packetpath/cgroupv2
+++ b/tests/shell/testcases/packetpath/cgroupv2
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+# NFT_TEST_REQUIRES(NFT_TEST_HAVE_socat)
+
 doit="$1"
 rc=0
 
@@ -11,11 +13,6 @@ rc=0
 # should never match, it only exists so we
 # can create cgroupv2 match rules.
 
-if ! socat -h > /dev/null ; then
-	echo "socat tool is missing"
-	exit 77
-fi
-
 if [ ! -r /sys/fs/cgroup/cgroup.procs ] ;then
 	echo "cgroup filesystem not available"
 	exit 77
diff --git a/tests/shell/testcases/packetpath/flowtables b/tests/shell/testcases/packetpath/flowtables
index 2c4a7e1f725ad..d4e0a5bd1c073 100755
--- a/tests/shell/testcases/packetpath/flowtables
+++ b/tests/shell/testcases/packetpath/flowtables
@@ -1,5 +1,6 @@
 #!/bin/bash
 
+# NFT_TEST_REQUIRES(NFT_TEST_HAVE_socat)
 # NFT_TEST_SKIP(NFT_TEST_SKIP_slow)
 
 set -x
diff --git a/tests/shell/testcases/packetpath/match_l4proto b/tests/shell/testcases/packetpath/match_l4proto
index 31fbe6c27d66a..e61524e9cbdb8 100755
--- a/tests/shell/testcases/packetpath/match_l4proto
+++ b/tests/shell/testcases/packetpath/match_l4proto
@@ -1,6 +1,7 @@
 #!/bin/bash
 
 # NFT_TEST_REQUIRES(NFT_TEST_HAVE_netdev_egress)
+# NFT_TEST_REQUIRES(NFT_TEST_HAVE_socat)
 
 rnd=$(mktemp -u XXXXXXXX)
 ns1="nft1payload-$rnd"
diff --git a/tests/shell/testcases/packetpath/payload b/tests/shell/testcases/packetpath/payload
index 83e0b7fc647ac..1e6b5a51969bb 100755
--- a/tests/shell/testcases/packetpath/payload
+++ b/tests/shell/testcases/packetpath/payload
@@ -1,6 +1,7 @@
 #!/bin/bash
 
 # NFT_TEST_REQUIRES(NFT_TEST_HAVE_netdev_egress)
+# NFT_TEST_REQUIRES(NFT_TEST_HAVE_socat)
 
 rnd=$(mktemp -u XXXXXXXX)
 ns1="nft1payload-$rnd"
diff --git a/tests/shell/testcases/packetpath/tcp_options b/tests/shell/testcases/packetpath/tcp_options
index 57e228c5990e0..88c095ff66dec 100755
--- a/tests/shell/testcases/packetpath/tcp_options
+++ b/tests/shell/testcases/packetpath/tcp_options
@@ -1,9 +1,7 @@
 #!/bin/bash
 
 # NFT_TEST_REQUIRES(NFT_TEST_HAVE_reset_tcp_options)
-
-have_socat="no"
-socat -h > /dev/null && have_socat="yes"
+# NFT_TEST_REQUIRES(NFT_TEST_HAVE_socat)
 
 ip link set lo up
 
@@ -33,11 +31,6 @@ if [ $? -ne 0 ]; then
 	exit 1
 fi
 
-if [ $have_socat != "yes" ]; then
-	echo "Ran partial test, socat not available (skipped)"
-	exit 77
-fi
-
 # This will fail (drop in output -> connect fails with eperm)
 socat -u STDIN TCP:127.0.0.1:22345,connect-timeout=1 < /dev/null > /dev/null
 
diff --git a/tests/shell/testcases/packetpath/tcp_reset b/tests/shell/testcases/packetpath/tcp_reset
index 3dfcdde40c77a..559260a377090 100755
--- a/tests/shell/testcases/packetpath/tcp_reset
+++ b/tests/shell/testcases/packetpath/tcp_reset
@@ -1,10 +1,10 @@
 #!/bin/bash
 
+# NFT_TEST_REQUIRES(NFT_TEST_HAVE_socat)
+
 # regression check for kernel commit
 # netfilter: nf_reject: init skb->dev for reset packet
 
-socat -h > /dev/null || exit 77
-
 ip link set lo up
 
 $NFT -f - <<EOF
-- 
2.48.1