odp-util: Always report ODP_FIT_TOO_LITTLE for IGMP.
OVS datapaths don't understand or parse IGMP fields, but OVS userspace
does, so this commit updates odp_flow_key_to_flow() to report that properly
to the caller.
Reported-by: Huanle Han
Reported-at:
@@ -6210,6 +6210,11 @@ parse_l2_5_onward(const struct nlattr *attrs[OVS_KEY_ATTR_MAX + 1],
}
}
}
+ } else if (src_flow->nw_proto == IPPROTO_IGMP
+ && src_flow->dl_type == htons(ETH_TYPE_IP)) {
+ /* OVS userspace parses the IGMP type, code, and group, but its
+ * datapaths do not, so there is always missing information. */
+ return ODP_FIT_TOO_LITTLE;
}
if (is_mask && expected_bit != OVS_KEY_ATTR_UNSPEC) {
if ((flow->tp_src || flow->tp_dst) && flow->nw_proto != 0xff) {
