[PATCH v2 iptables 3/4] arptables-txlate: add test cases

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Add test cases for libarpt_mangle and extend the generic
tests to cover basic arptables matches.

Note that there are several historic artefacts that could be revised.
For example, arptables-legacy and arptables-nft both ignore "-p"
instead of returning an error about an unsupported option.

The ptype could be hard-wired to 0x800 and set unconditionally.
OTOH, this should always match for ethernet arp packets anyway.

Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
---
 extensions/generic.txlate        | 6 ++++++
 extensions/libarpt_mangle.txlate | 6 ++++++
 xlate-test.py                    | 4 +++-
 3 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100644 extensions/libarpt_mangle.txlate

diff --git a/extensions/generic.txlate b/extensions/generic.txlate
index c24ed1568884..b79239f1a063 100644
--- a/extensions/generic.txlate
+++ b/extensions/generic.txlate
@@ -1,3 +1,9 @@
+arptables-translate -A OUTPUT --proto-type ipv4 -s 1.2.3.4 -j ACCEPT
+nft 'add rule arp filter OUTPUT arp htype 1 arp hlen 6 arp plen 4 arp ptype 0x800 arp saddr ip 1.2.3.4 counter accept'
+
+arptables-translate -I OUTPUT -o oifname
+nft 'insert rule arp filter OUTPUT oifname "oifname" arp htype 1 arp hlen 6 arp plen 4 counter'
+
 iptables-translate -I OUTPUT -p udp -d 8.8.8.8 -j ACCEPT
 nft 'insert rule ip filter OUTPUT ip protocol udp ip daddr 8.8.8.8 counter accept'
 
diff --git a/extensions/libarpt_mangle.txlate b/extensions/libarpt_mangle.txlate
new file mode 100644
index 000000000000..e884d3289a76
--- /dev/null
+++ b/extensions/libarpt_mangle.txlate
@@ -0,0 +1,6 @@
+arptables-translate -A OUTPUT -d 10.21.22.129 -j mangle --mangle-ip-s 10.21.22.161
+nft 'add rule arp filter OUTPUT arp htype 1 arp hlen 6 arp plen 4 arp daddr ip 10.21.22.129 counter arp saddr ip set 10.21.22.161 accept'
+arptables-translate -A OUTPUT -d 10.2.22.129/24 -j mangle --mangle-ip-d 10.2.22.1 --mangle-target CONTINUE
+nft 'add rule arp filter OUTPUT arp htype 1 arp hlen 6 arp plen 4 arp daddr ip 10.2.22.0/24 counter arp daddr ip set 10.2.22.1'
+arptables-translate -A OUTPUT -d 10.2.22.129/24 -j mangle --mangle-ip-d 10.2.22.1 --mangle-mac-d a:b:c:d:e:f
+nft 'add rule arp filter OUTPUT arp htype 1 arp hlen 6 arp plen 4 arp daddr ip 10.2.22.0/24 counter arp daddr ip set 10.2.22.1 arp daddr ether set 0a:0b:0c:0d:0e:0f accept'
diff --git a/xlate-test.py b/xlate-test.py
index 6a1165986847..ddd68b91d3a7 100755
--- a/xlate-test.py
+++ b/xlate-test.py
@@ -14,7 +14,7 @@ def run_proc(args, shell = False, input = None):
     output, error = process.communicate(input)
     return (process.returncode, output, error)
 
-keywords = ("iptables-translate", "ip6tables-translate", "ebtables-translate")
+keywords = ("iptables-translate", "ip6tables-translate", "arptables-translate", "ebtables-translate")
 xtables_nft_multi = 'xtables-nft-multi'
 
 if sys.stdout.isatty():
@@ -95,6 +95,8 @@ def test_one_replay(name, sourceline, expected, result):
     fam = ""
     if srccmd.startswith("ip6"):
         fam = "ip6 "
+    elif srccmd.startswith("arp"):
+        fam = "arp "
     elif srccmd.startswith("ebt"):
         fam = "bridge "
 
-- 
2.41.0




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