From eccc5d3237fc549ba647654a7f74f8b9e9dcaf6d Mon Sep 17 00:00:00 2001 From: Matan Azrad Date: Mon, 11 Nov 2019 10:42:05 +0000 Subject: [PATCH] ethdev: fix last item detection on RSS flow expand There is a rte_flow API which expands a RSS flow pattern to multiple patterns according to the RSS hash types in the RSS action configuration. As part of the expansion, detection of the last item of the flow uses the "next proto" field of the last configured item in the pattern list. Wrongly, the mask of this field was not considered in order to validate the field. Ignore "next proto" fields when their corresponded masks invalidate them. Fixes: fc2dd8dd492f ("ethdev: fix expand RSS flows") Cc: stable@dpdk.org Signed-off-by: Matan Azrad Acked-by: Xiaoyu Min Acked-by: Ori Kam --- lib/librte_ethdev/rte_flow.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/lib/librte_ethdev/rte_flow.c b/lib/librte_ethdev/rte_flow.c index 8ec9c90cd2..d7f29e5322 100644 --- a/lib/librte_ethdev/rte_flow.c +++ b/lib/librte_ethdev/rte_flow.c @@ -218,12 +218,21 @@ rte_flow_expand_rss_item_complete(const struct rte_flow_item *item) { enum rte_flow_item_type ret = RTE_FLOW_ITEM_TYPE_VOID; uint16_t ether_type = 0; + uint16_t ether_type_m; uint8_t ip_next_proto = 0; + uint8_t ip_next_proto_m; if (item == NULL || item->spec == NULL) return ret; switch (item->type) { case RTE_FLOW_ITEM_TYPE_ETH: + if (item->mask) + ether_type_m = ((const struct rte_flow_item_eth *) + (item->mask))->type; + else + ether_type_m = rte_flow_item_eth_mask.type; + if (ether_type_m != RTE_BE16(0xFFFF)) + break; ether_type = ((const struct rte_flow_item_eth *) (item->spec))->type; if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV4) @@ -234,6 +243,13 @@ rte_flow_expand_rss_item_complete(const struct rte_flow_item *item) ret = RTE_FLOW_ITEM_TYPE_VLAN; break; case RTE_FLOW_ITEM_TYPE_VLAN: + if (item->mask) + ether_type_m = ((const struct rte_flow_item_vlan *) + (item->mask))->inner_type; + else + ether_type_m = rte_flow_item_vlan_mask.inner_type; + if (ether_type_m != RTE_BE16(0xFFFF)) + break; ether_type = ((const struct rte_flow_item_vlan *) (item->spec))->inner_type; if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV4) @@ -244,6 +260,14 @@ rte_flow_expand_rss_item_complete(const struct rte_flow_item *item) ret = RTE_FLOW_ITEM_TYPE_VLAN; break; case RTE_FLOW_ITEM_TYPE_IPV4: + if (item->mask) + ip_next_proto_m = ((const struct rte_flow_item_ipv4 *) + (item->mask))->hdr.next_proto_id; + else + ip_next_proto_m = + rte_flow_item_ipv4_mask.hdr.next_proto_id; + if (ip_next_proto_m != 0xFF) + break; ip_next_proto = ((const struct rte_flow_item_ipv4 *) (item->spec))->hdr.next_proto_id; if (ip_next_proto == IPPROTO_UDP) @@ -256,6 +280,14 @@ rte_flow_expand_rss_item_complete(const struct rte_flow_item *item) ret = RTE_FLOW_ITEM_TYPE_IPV6; break; case RTE_FLOW_ITEM_TYPE_IPV6: + if (item->mask) + ip_next_proto_m = ((const struct rte_flow_item_ipv6 *) + (item->mask))->hdr.proto; + else + ip_next_proto_m = + rte_flow_item_ipv6_mask.hdr.proto; + if (ip_next_proto_m != 0xFF) + break; ip_next_proto = ((const struct rte_flow_item_ipv6 *) (item->spec))->hdr.proto; if (ip_next_proto == IPPROTO_UDP) -- 2.20.1