diff options
| author | Jason Wang <jasowang@redhat.com> | 2013-03-26 23:11:22 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-03-27 12:48:31 -0400 |
| commit | 40893fd0fd4e0eda8c6a53db6a8e6013b2d44c16 (patch) | |
| tree | f61f8374d9a77385ef06012256b68633edb27e2c /drivers/net/tun.c | |
| parent | 5203cd28db6dc05c3618a602cf4cf81203d00257 (diff) | |
| download | linux-40893fd0fd4e0eda8c6a53db6a8e6013b2d44c16.tar.gz | |
net: switch to use skb_probe_transport_header()
Switch to use the new help skb_probe_transport_header() to do the l4 header probing for untrusted sources. For packets with partial csum, the header should already been set by skb_partial_csum_set(). Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/tun.c')
| -rw-r--r-- | drivers/net/tun.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 48cd73a2dc55..29538e6e914d 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -70,7 +70,6 @@ #include <net/sock.h> #include <asm/uaccess.h> -#include <net/flow_keys.h> /* Uncomment to enable debugging */ /* #define TUN_DEBUG 1 */ @@ -1050,7 +1049,6 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, bool zerocopy = false; int err; u32 rxhash; - struct flow_keys keys; if (!(tun->flags & TUN_NO_PI)) { if ((len -= sizeof(pi)) > total_len) @@ -1205,13 +1203,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, } skb_reset_network_header(skb); - - if (skb->ip_summed == CHECKSUM_PARTIAL) - skb_set_transport_header(skb, skb_checksum_start_offset(skb)); - else if (skb_flow_dissect(skb, &keys)) - skb_set_transport_header(skb, keys.thoff); - else - skb_reset_transport_header(skb); + skb_probe_transport_header(skb, 0); rxhash = skb_get_rxhash(skb); netif_rx_ni(skb); |