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| author | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2015-10-24 02:08:33 +0200 |
|---|---|---|
| committer | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2015-10-24 02:08:33 +0200 |
| commit | f0b9ad5690ed96f95d91ca19fba2fb2894bae6f0 (patch) | |
| tree | d1b649e6f97ac0f1fc9864a296021c71cf69cd21 /net/bridge/br_stp_bpdu.c | |
| parent | 272e77de798362c31e6452a46a0e7d5b6aaeb550 (diff) | |
| download | kernel_samsung_smdk4412-migrate_3.2.zip kernel_samsung_smdk4412-migrate_3.2.tar.gz kernel_samsung_smdk4412-migrate_3.2.tar.bz2 | |
update network codemigrate_3.2
Diffstat (limited to 'net/bridge/br_stp_bpdu.c')
| -rw-r--r-- | net/bridge/br_stp_bpdu.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c index f26516a..718cbe8 100644 --- a/net/bridge/br_stp_bpdu.c +++ b/net/bridge/br_stp_bpdu.c @@ -212,10 +212,19 @@ void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, bpdu.hello_time = br_get_ticks(buf+28); bpdu.forward_delay = br_get_ticks(buf+30); - br_received_config_bpdu(p, &bpdu); - } + if (bpdu.message_age > bpdu.max_age) { + if (net_ratelimit()) + br_notice(p->br, + "port %u config from %pM" + " (message_age %ul > max_age %ul)\n", + p->port_no, + eth_hdr(skb)->h_source, + bpdu.message_age, bpdu.max_age); + goto out; + } - else if (buf[0] == BPDU_TYPE_TCN) { + br_received_config_bpdu(p, &bpdu); + } else if (buf[0] == BPDU_TYPE_TCN) { br_received_tcn_bpdu(p); } out: |