From b63d267e79a54b1c1f0c3e987a28535055d5f574 Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Fri, 26 Sep 2014 15:45:22 +0200 Subject: Don't forward frames with local destination MAC address --- src/peer.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) (limited to 'src/peer.c') diff --git a/src/peer.c b/src/peer.c index 03e5716..7a05dbd 100644 --- a/src/peer.c +++ b/src/peer.c @@ -862,7 +862,7 @@ static int peer_eth_addr_cmp(const fastd_peer_eth_addr_t *addr1, const fastd_pee void fastd_peer_eth_addr_add(fastd_peer_t *peer, fastd_eth_addr_t addr) { int min = 0, max = VECTOR_LEN(ctx.eth_addrs); - if (!fastd_peer_is_established(peer)) + if (peer && !fastd_peer_is_established(peer)) exit_bug("tried to learn ethernet address on non-established peer"); while (max > min) { @@ -884,18 +884,22 @@ void fastd_peer_eth_addr_add(fastd_peer_t *peer, fastd_eth_addr_t addr) { VECTOR_INSERT(ctx.eth_addrs, ((fastd_peer_eth_addr_t) {addr, peer, ctx.now + ETH_ADDR_STALE_TIME}), min); - pr_debug("learned new MAC address %E on peer %P", &addr, peer); + if (peer) + pr_debug("learned new MAC address %E on peer %P", &addr, peer); + else + pr_debug("learned new local MAC address %E", &addr); } /** Finds the peer that is associated with a given MAC address */ -fastd_peer_t * fastd_peer_find_by_eth_addr(const fastd_eth_addr_t addr) { +bool fastd_peer_find_by_eth_addr(const fastd_eth_addr_t addr, fastd_peer_t **peer) { const fastd_peer_eth_addr_t key = {.addr = addr}; fastd_peer_eth_addr_t *peer_eth_addr = VECTOR_BSEARCH(&key, ctx.eth_addrs, peer_eth_addr_cmp); - if (peer_eth_addr) - return peer_eth_addr->peer; - else - return NULL; + if (!peer_eth_addr) + return false; + + *peer = peer_eth_addr->peer; + return true; } /** -- cgit v1.2.3