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net: Add keys for TIPC address

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Add a new flow key for TIPC addresses.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert 2015-06-04 09:16:41 -07:00 committed by David S. Miller
parent c3f8324188
commit 9f24908901
2 changed files with 23 additions and 5 deletions
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10
include/net/flow_dissector.h
View File

@ -49,6 +49,14 @@ struct flow_dissector_key_ipv6_addrs {
struct in6_addr dst;
};
/**
* struct flow_dissector_key_tipc_addrs:
* @srcnode: source node address
*/
struct flow_dissector_key_tipc_addrs {
__be32 srcnode;
};
/**
* struct flow_dissector_key_addrs:
* @v4addrs: IPv4 addresses
@ -58,6 +66,7 @@ struct flow_dissector_key_addrs {
union {
struct flow_dissector_key_ipv4_addrs v4addrs;
struct flow_dissector_key_ipv6_addrs v6addrs;
struct flow_dissector_key_tipc_addrs tipcaddrs;
};
};
@ -97,6 +106,7 @@ enum flow_dissector_key_id {
FLOW_DISSECTOR_KEY_IPV6_HASH_ADDRS, /* struct flow_dissector_key_addrs */
FLOW_DISSECTOR_KEY_PORTS, /* struct flow_dissector_key_ports */
FLOW_DISSECTOR_KEY_ETH_ADDRS, /* struct flow_dissector_key_eth_addrs */
FLOW_DISSECTOR_KEY_TIPC_ADDRS, /* struct flow_dissector_key_tipc_addrs */
FLOW_DISSECTOR_KEY_MAX,
};

18
net/core/flow_dissector.c
View File

@ -294,13 +294,12 @@ flow_label:
key_control->thoff = (u16)nhoff;
if (skb_flow_dissector_uses_key(flow_dissector,
FLOW_DISSECTOR_KEY_IPV6_HASH_ADDRS)) {
FLOW_DISSECTOR_KEY_TIPC_ADDRS)) {
key_addrs = skb_flow_dissector_target(flow_dissector,
FLOW_DISSECTOR_KEY_IPV6_HASH_ADDRS,
FLOW_DISSECTOR_KEY_TIPC_ADDRS,
target_container);
key_addrs->v4addrs.src = hdr->srcnode;
key_addrs->v4addrs.dst = 0;
key_control->addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
key_addrs->tipcaddrs.srcnode = hdr->srcnode;
key_control->addr_type = FLOW_DISSECTOR_KEY_TIPC_ADDRS;
}
return true;
}
@ -408,6 +407,9 @@ static inline size_t flow_keys_hash_length(struct flow_keys *flow)
case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
diff -= sizeof(flow->addrs.v6addrs);
break;
case FLOW_DISSECTOR_KEY_TIPC_ADDRS:
diff -= sizeof(flow->addrs.tipcaddrs);
break;
}
return (sizeof(*flow) - diff) / sizeof(u32);
}
@ -420,6 +422,8 @@ __be32 flow_get_u32_src(const struct flow_keys *flow)
case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
return (__force __be32)ipv6_addr_hash(
&flow->addrs.v6addrs.src);
case FLOW_DISSECTOR_KEY_TIPC_ADDRS:
return flow->addrs.tipcaddrs.srcnode;
default:
return 0;
}
@ -650,6 +654,10 @@ static const struct flow_dissector_key flow_keys_dissector_keys[] = {
.key_id = FLOW_DISSECTOR_KEY_IPV6_HASH_ADDRS,
.offset = offsetof(struct flow_keys, addrs.v4addrs),
},
{
.key_id = FLOW_DISSECTOR_KEY_TIPC_ADDRS,
.offset = offsetof(struct flow_keys, addrs.tipcaddrs),
},
{
.key_id = FLOW_DISSECTOR_KEY_PORTS,
.offset = offsetof(struct flow_keys, ports),