[PATCH net-next 4/5] mctp: Allow keys matching any local address
From: Jeremy Kerr <jk@codeconstruct.com.au>
Date: 2022-02-08 11:28:27
Also in:
linux-doc
Subsystem:
management component transport protocol (mctp), networking [general], the rest · Maintainers:
Jeremy Kerr, Matt Johnston, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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> --- net/mctp/route.c | 4 ++-- net/mctp/test/route-test.c | 8 ++++++++ 2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/net/mctp/route.c b/net/mctp/route.c
index 654467a7aeae..35f72e99e188 100644
--- a/net/mctp/route.c
+++ b/net/mctp/route.c@@ -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);
diff --git a/net/mctp/test/route-test.c b/net/mctp/test/route-test.c
index 044d59e81f89..5496e3a7f4c3 100644
--- a/net/mctp/test/route-test.c
+++ b/net/mctp/test/route-test.c@@ -646,6 +646,14 @@ static const struct mctp_route_input_sk_keys_test mctp_route_input_sk_keys_tests .hdr = RX_HDR(1, 11, 8, FL_S | FL_E | FL_T(1)), .deliver = true, }, + { + .name = "any local match", + .key_peer_addr = 12, + .key_local_addr = MCTP_ADDR_ANY, + .key_tag = 1, + .hdr = RX_HDR(1, 12, 8, FL_S | FL_E | FL_T(1)), + .deliver = true, + }, }; static void mctp_route_input_sk_keys_to_desc(
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2.34.1