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mctp: Allow keys matching any local address

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Currently, we require an exact match on an incoming packet's dest
address, and the key's local_addr field.

In a future change, we may want to set up a key before packets are
routed, meaning we have no local address to match on.

This change allows key lookups to match on local_addr = MCTP_ADDR_ANY.

Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jeremy Kerr
2022-02-09 12:05:56 +08:00
committed by David S. Miller
parent 8069b22d65
commit 0de55a7d11
2 changed files with 10 additions and 2 deletions
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4
net/mctp/route.c
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@@ -76,7 +76,7 @@ static struct mctp_sock *mctp_lookup_bind(struct net *net, struct sk_buff *skb)
static bool mctp_key_match(struct mctp_sk_key *key, mctp_eid_t local,
mctp_eid_t peer, u8 tag)
{
if (key->local_addr != local)
if (!mctp_address_matches(key->local_addr, local))
return false;
if (key->peer_addr != peer)
@@ -616,7 +616,7 @@ static struct mctp_sk_key *mctp_alloc_local_tag(struct mctp_sock *msk,
continue;
if (!(mctp_address_matches(tmp->peer_addr, daddr) &&
tmp->local_addr == saddr))
mctp_address_matches(tmp->local_addr, saddr)))
continue;
spin_lock(&tmp->lock);