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crypto-input: fix crash bug

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as this node is refactored in new style with
vlib_buffer_enqueue_to_next, we have to check if the 'count'
is greater than 0. otherise, the next_index would be invalid
then lead to a crash

Change-Id: If7c323b59c02b5c16bd9d77b65c946512cc972c1
Signed-off-by: Kingwel Xie <kingwel.xie@ericsson.com>
This commit is contained in:
Kingwel Xie
2018-12-25 21:31:28 -05:00
parent a5c308e68d
commit 955ee28028
1 changed files with 12 additions and 8 deletions
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20
src/plugins/dpdk/ipsec/crypto_node.c
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@ -167,6 +167,10 @@ dpdk_crypto_dequeue (vlib_main_t * vm, vlib_node_runtime_t * node,
res->qp_id + outbound,
ops, VLIB_FRAME_SIZE);
/* no op dequeued, do not proceed */
if (n_deq == 0)
return 0;
res->inflights[outbound] -= n_ops;
dpdk_crypto_input_trace (vm, node, ops, n_deq);
@ -184,14 +188,14 @@ dpdk_crypto_dequeue (vlib_main_t * vm, vlib_node_runtime_t * node,
CLIB_PREFETCH (ops[6], CLIB_CACHE_LINE_BYTES, LOAD);
CLIB_PREFETCH (ops[7], CLIB_CACHE_LINE_BYTES, LOAD);
CLIB_PREFETCH (crypto_op_get_priv (ops[4]), CLIB_CACHE_LINE_BYTES,
LOAD);
CLIB_PREFETCH (crypto_op_get_priv (ops[5]), CLIB_CACHE_LINE_BYTES,
LOAD);
CLIB_PREFETCH (crypto_op_get_priv (ops[6]), CLIB_CACHE_LINE_BYTES,
LOAD);
CLIB_PREFETCH (crypto_op_get_priv (ops[7]), CLIB_CACHE_LINE_BYTES,
LOAD);
CLIB_PREFETCH (crypto_op_get_priv (ops[4]),
CLIB_CACHE_LINE_BYTES, LOAD);
CLIB_PREFETCH (crypto_op_get_priv (ops[5]),
CLIB_CACHE_LINE_BYTES, LOAD);
CLIB_PREFETCH (crypto_op_get_priv (ops[6]),
CLIB_CACHE_LINE_BYTES, LOAD);
CLIB_PREFETCH (crypto_op_get_priv (ops[7]),
CLIB_CACHE_LINE_BYTES, LOAD);
}
op0 = ops[0];