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VPP-100: Fix IPv4 local handling of IP fragmented packets

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Before VPP is enhenced to do IP reassembly of local packets, just set
the protocol path to "experimental" for now so they will be error-punted
as unknow IP protocol.

Change-Id: I2ffefb0b4205357653ba24d80c722cafd5972fba
Signed-off-by: John Lo <loj@cisco.com>
This commit is contained in:
John Lo
2016-06-02 09:28:37 -04:00
committed by Dave Barach
parent a0e1f31b3d
commit 142db43bb6
1 changed files with 7 additions and 3 deletions
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10
vnet/vnet/ip/ip4_forward.c
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@ -1773,8 +1773,10 @@ ip4_local (vlib_main_t * vm,
leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 0);
leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 0);
proto0 = ip0->protocol;
proto1 = ip1->protocol;
/* Treat IP frag packets as "experimental" protocol for now
until support of IP frag reassembly is implemented */
proto0 = (ip0->flags_and_fragment_offset << 2) ? 0xfe : ip0->protocol;
proto1 = (ip1->flags_and_fragment_offset << 2) ? 0xfe : ip1->protocol;
is_udp0 = proto0 == IP_PROTOCOL_UDP;
is_udp1 = proto1 == IP_PROTOCOL_UDP;
is_tcp_udp0 = is_udp0 || proto0 == IP_PROTOCOL_TCP;
@ -1966,7 +1968,9 @@ ip4_local (vlib_main_t * vm,
leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 0);
proto0 = ip0->protocol;
/* Treat IP frag packets as "experimental" protocol for now
until support of IP frag reassembly is implemented */
proto0 = (ip0->flags_and_fragment_offset << 2) ? 0xfe : ip0->protocol;
is_udp0 = proto0 == IP_PROTOCOL_UDP;
is_tcp_udp0 = is_udp0 || proto0 == IP_PROTOCOL_TCP;