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net: fix inner L2 length in packet type parser

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The inner L2 length returned by rte_net_get_ptype() is not
properly initialized. If the caller does not zero the header
lengths structure, the inner_l2 field will be undefined.

Fix it by initializing inner_l2 to 0 when parsing a inner layer.

Fixes: 2c15c5377da2 ("net: support NVGRE in software packet type parser")
Cc: stable@dpdk.org

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
This commit is contained in:
Olivier Matz 2017-09-11 16:57:22 +02:00 committed by Thomas Monjalon
parent effd92b96a
commit b081c1dd2e
1 changed files with 1 additions and 0 deletions
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lib/librte_net/rte_net.c
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@ -396,6 +396,7 @@ uint32_t rte_net_get_ptype(const struct rte_mbuf *m,
if ((layers & RTE_PTYPE_INNER_L2_MASK) == 0)
return pkt_type;
hdr_lens->inner_l2_len = 0;
if (proto == rte_cpu_to_be_16(ETHER_TYPE_TEB)) {
eh = rte_pktmbuf_read(m, off, sizeof(*eh), &eh_copy);
if (unlikely(eh == NULL))