diff options
| -rw-r--r-- | net/packet/af_packet.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index bd0d14c..83fdd0a 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -88,6 +88,7 @@ #include <linux/virtio_net.h> #include <linux/errqueue.h> #include <linux/net_tstamp.h> +#include <net/flow_keys.h> #ifdef CONFIG_INET #include <net/inet_common.h> @@ -1412,6 +1413,7 @@ static int packet_sendmsg_spkt(struct kiocb *iocb, struct socket *sock, __be16 proto = 0; int err; int extra_len = 0; + struct flow_keys keys; /* * Get and verify the address. @@ -1512,6 +1514,11 @@ retry: if (unlikely(extra_len == 4)) skb->no_fcs = 1; + if (skb_flow_dissect(skb, &keys)) + skb_set_transport_header(skb, keys.thoff); + else + skb_reset_transport_header(skb); + dev_queue_xmit(skb); rcu_read_unlock(); return len; @@ -1918,6 +1925,7 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb, struct page *page; void *data; int err; + struct flow_keys keys; ph.raw = frame; @@ -1943,6 +1951,11 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb, skb_reserve(skb, hlen); skb_reset_network_header(skb); + if (skb_flow_dissect(skb, &keys)) + skb_set_transport_header(skb, keys.thoff); + else + skb_reset_transport_header(skb); + if (po->tp_tx_has_off) { int off_min, off_max, off; off_min = po->tp_hdrlen - sizeof(struct sockaddr_ll); @@ -2199,6 +2212,7 @@ static int packet_snd(struct socket *sock, unsigned short gso_type = 0; int hlen, tlen; int extra_len = 0; + struct flow_keys keys; /* * Get and verify the address. @@ -2351,6 +2365,13 @@ static int packet_snd(struct socket *sock, len += vnet_hdr_len; } + 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_set_transport_header(skb, reserve); + if (unlikely(extra_len == 4)) skb->no_fcs = 1; |
