diff --git a/include/net/flow_dissector.h b/include/net/flow_dissector.h index 586b12306a52..5eac9870689c 100644 --- a/include/net/flow_dissector.h +++ b/include/net/flow_dissector.h @@ -4,6 +4,7 @@ #include #include #include +#include /** * struct flow_dissector_key_basic: @@ -54,12 +55,24 @@ struct flow_dissector_key_ipv6_addrs { struct in6_addr dst; }; +/** + * struct flow_dissector_key_eth_addrs: + * @src: source Ethernet address + * @dst: destination Ethernet address + */ +struct flow_dissector_key_eth_addrs { + /* (dst,src) must be grouped, in the same way than in ETH header */ + unsigned char dst[ETH_ALEN]; + unsigned char src[ETH_ALEN]; +}; + enum flow_dissector_key_id { FLOW_DISSECTOR_KEY_BASIC, /* struct flow_dissector_key_basic */ FLOW_DISSECTOR_KEY_IPV4_ADDRS, /* struct flow_dissector_key_addrs */ FLOW_DISSECTOR_KEY_IPV6_HASH_ADDRS, /* struct flow_dissector_key_addrs */ FLOW_DISSECTOR_KEY_PORTS, /* struct flow_dissector_key_ports */ FLOW_DISSECTOR_KEY_IPV6_ADDRS, /* struct flow_dissector_key_ipv6_addrs */ + FLOW_DISSECTOR_KEY_ETH_ADDRS, /* struct flow_dissector_key_eth_addrs */ FLOW_DISSECTOR_KEY_MAX, }; diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c index 1b95d5ccc9d6..7a0b391114a5 100644 --- a/net/core/flow_dissector.c +++ b/net/core/flow_dissector.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include @@ -138,6 +139,17 @@ bool __skb_flow_dissect(const struct sk_buff *skb, FLOW_DISSECTOR_KEY_BASIC, target_container); + if (skb_flow_dissector_uses_key(flow_dissector, + FLOW_DISSECTOR_KEY_ETH_ADDRS)) { + struct ethhdr *eth = eth_hdr(skb); + struct flow_dissector_key_eth_addrs *key_eth_addrs; + + key_eth_addrs = skb_flow_dissector_target(flow_dissector, + FLOW_DISSECTOR_KEY_ETH_ADDRS, + target_container); + memcpy(key_eth_addrs, ð->h_dest, sizeof(*key_eth_addrs)); + } + again: switch (proto) { case htons(ETH_P_IP): {