evaluate: enforce ip6 proto with exthdr expression

Don't allow use of exthdr with e.g. ip family.
Move frag.t to ip6 directory and don't use it with ipv4 anymore.

This change causes major test failures for all exthdr users
since they now fail with inet/bridge/netdev families.

Will be resolved in a later patch -- we need to add
an ipv6 dependency for them.

Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 109 insertions, 0 deletions

diff --git a/tests/py/ip6/frag.t.payload.ip6 b/tests/py/ip6/frag.t.payload.ip6
new file mode 100644
index 00000000..f2d04b6b
--- /dev/null
+++ b/tests/py/ip6/frag.t.payload.ip6
@@ -0,0 +1,109 @@
+# frag nexthdr tcp
+ip6 test-ip6 output
+  [ exthdr load 1b @ 44 + 0 => reg 1 ]
+  [ cmp eq reg 1 0x00000006 ]
+
+# frag nexthdr != icmp
+ip6 test-ip6 output
+  [ exthdr load 1b @ 44 + 0 => reg 1 ]
+  [ cmp neq reg 1 0x00000001 ]
+
+# frag nexthdr {esp, ah, comp, udp, udplite, tcp, dccp, sctp}
+set%d test-ip6 3
+set%d test-ip6 0
+	element 00000032  : 0 [end]	element 00000033  : 0 [end]	element 0000006c  : 0 [end]	element 00000011  : 0 [end]	element 00000088  : 0 [end]	element 00000006  : 0 [end]	element 00000021  : 0 [end]	element 00000084  : 0 [end]
+ip6 test-ip6 output
+  [ exthdr load 1b @ 44 + 0 => reg 1 ]
+  [ lookup reg 1 set set%d ]
+
+# frag nexthdr esp
+ip6 test-ip6 output
+  [ exthdr load 1b @ 44 + 0 => reg 1 ]
+  [ cmp eq reg 1 0x00000032 ]
+
+# frag nexthdr ah
+ip6 test-ip6 output
+  [ exthdr load 1b @ 44 + 0 => reg 1 ]
+  [ cmp eq reg 1 0x00000033 ]
+
+# frag reserved 22
+ip6 test-ip6 output
+  [ exthdr load 1b @ 44 + 1 => reg 1 ]
+  [ cmp eq reg 1 0x00000016 ]
+
+# frag reserved != 233
+ip6 test-ip6 output
+  [ exthdr load 1b @ 44 + 1 => reg 1 ]
+  [ cmp neq reg 1 0x000000e9 ]
+
+# frag reserved 33-45
+ip6 test-ip6 output
+  [ exthdr load 1b @ 44 + 1 => reg 1 ]
+  [ cmp gte reg 1 0x00000021 ]
+  [ cmp lte reg 1 0x0000002d ]
+
+# frag reserved != 33-45
+ip6 test-ip6 output
+  [ exthdr load 1b @ 44 + 1 => reg 1 ]
+  [ cmp lt reg 1 0x00000021 ]
+  [ cmp gt reg 1 0x0000002d ]
+
+# frag reserved { 33, 55, 67, 88}
+set%d test-ip6 3
+set%d test-ip6 0
+	element 00000021  : 0 [end]	element 00000037  : 0 [end]	element 00000043  : 0 [end]	element 00000058  : 0 [end]
+ip6 test-ip6 output
+  [ exthdr load 1b @ 44 + 1 => reg 1 ]
+  [ lookup reg 1 set set%d ]
+
+# frag reserved { 33-55}
+set%d test-ip6 7
+set%d test-ip6 0
+	element 00000000  : 1 [end]	element 00000021  : 0 [end]	element 00000038  : 1 [end]
+ip6 test-ip6 output
+  [ exthdr load 1b @ 44 + 1 => reg 1 ]
+  [ lookup reg 1 set set%d ]
+
+# frag id 1
+ip6 test-ip6 output
+  [ exthdr load 4b @ 44 + 4 => reg 1 ]
+  [ cmp eq reg 1 0x01000000 ]
+
+# frag id 22
+ip6 test-ip6 output
+  [ exthdr load 4b @ 44 + 4 => reg 1 ]
+  [ cmp eq reg 1 0x16000000 ]
+
+# frag id != 33
+ip6 test-ip6 output
+  [ exthdr load 4b @ 44 + 4 => reg 1 ]
+  [ cmp neq reg 1 0x21000000 ]
+
+# frag id 33-45
+ip6 test-ip6 output
+  [ exthdr load 4b @ 44 + 4 => reg 1 ]
+  [ cmp gte reg 1 0x21000000 ]
+  [ cmp lte reg 1 0x2d000000 ]
+
+# frag id != 33-45
+ip6 test-ip6 output
+  [ exthdr load 4b @ 44 + 4 => reg 1 ]
+  [ cmp lt reg 1 0x21000000 ]
+  [ cmp gt reg 1 0x2d000000 ]
+
+# frag id { 33, 55, 67, 88}
+set%d test-ip6 3
+set%d test-ip6 0
+	element 21000000  : 0 [end]	element 37000000  : 0 [end]	element 43000000  : 0 [end]	element 58000000  : 0 [end]
+ip6 test-ip6 output
+  [ exthdr load 4b @ 44 + 4 => reg 1 ]
+  [ lookup reg 1 set set%d ]
+
+# frag id { 33-55}
+set%d test-ip6 7
+set%d test-ip6 0
+	element 00000000  : 1 [end]	element 21000000  : 0 [end]	element 38000000  : 1 [end]
+ip6 test-ip6 output
+  [ exthdr load 4b @ 44 + 4 => reg 1 ]
+  [ lookup reg 1 set set%d ]
+