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| author |   Dan Williams <dan.j.williams@intel.com> | 2010-05-17 16:30:58 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2010-05-17 16:30:58 -0700 |
| commit | 0b28330e39bbe0ffee4c56b09fc415fcec595ea3 (patch) | |
| tree | fcf504879883763557e696eff81427b1ab78f76b /net/ipv4/tcp_ipv4.c | |
| parent | DMAENGINE: extend the control command to include an arg (diff) | |
| parent | async_tx: trim dma_async_tx_descriptor in 'no channel switch' case (diff) | |
| download | wireguard-linux-0b28330e39bbe0ffee4c56b09fc415fcec595ea3.tar.xz wireguard-linux-0b28330e39bbe0ffee4c56b09fc415fcec595ea3.zip | |
Merge branch 'ioat' into dmaengine
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 70df40980a87..3c23e70885f4 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -60,6 +60,7 @@ #include <linux/jhash.h> #include <linux/init.h> #include <linux/times.h> +#include <linux/slab.h> #include <net/net_namespace.h> #include <net/icmp.h> @@ -370,6 +371,11 @@ void tcp_v4_err(struct sk_buff *icmp_skb, u32 info) if (sk->sk_state == TCP_CLOSE) goto out; + if (unlikely(iph->ttl < inet_sk(sk)->min_ttl)) { + NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP); + goto out; + } + icsk = inet_csk(sk); tp = tcp_sk(sk); seq = ntohl(th->seq); |