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authorRichard Cochran <rcochran@linutronix.de>2018-07-03 15:42:51 -0700
committerDavid S. Miller <davem@davemloft.net>2018-07-04 22:30:27 +0900
commit3d0ba8c03ca9c49ffcb79d989312f123dd1bdc7a (patch)
tree6f95e2b14eea9f8cbbf5f80a7f4ee0082d4f9f75 /net/packet
parenta818f75e311c23cdac528888c60ae6e43a8958d0 (diff)
downloadlinux-stericsson-3d0ba8c03ca9c49ffcb79d989312f123dd1bdc7a.tar.gz
net: packet: Hook into time based transmission.
For raw layer-2 packets, copy the desired future transmit time from the CMSG cookie into the skb. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/packet')
-rw-r--r--net/packet/af_packet.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 57634bc3da74..3428f7739ae9 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1951,6 +1951,7 @@ retry:
goto out_unlock;
}
+ sockc.transmit_time = 0;
sockc.tsflags = sk->sk_tsflags;
if (msg->msg_controllen) {
err = sock_cmsg_send(sk, msg, &sockc);
@@ -1962,6 +1963,7 @@ retry:
skb->dev = dev;
skb->priority = sk->sk_priority;
skb->mark = sk->sk_mark;
+ skb->tstamp = sockc.transmit_time;
sock_tx_timestamp(sk, sockc.tsflags, &skb_shinfo(skb)->tx_flags);
@@ -2457,6 +2459,7 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb,
skb->dev = dev;
skb->priority = po->sk.sk_priority;
skb->mark = po->sk.sk_mark;
+ skb->tstamp = sockc->transmit_time;
sock_tx_timestamp(&po->sk, sockc->tsflags, &skb_shinfo(skb)->tx_flags);
skb_shinfo(skb)->destructor_arg = ph.raw;
@@ -2633,6 +2636,7 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
if (unlikely(!(dev->flags & IFF_UP)))
goto out_put;
+ sockc.transmit_time = 0;
sockc.tsflags = po->sk.sk_tsflags;
if (msg->msg_controllen) {
err = sock_cmsg_send(&po->sk, msg, &sockc);
@@ -2829,6 +2833,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
if (unlikely(!(dev->flags & IFF_UP)))
goto out_unlock;
+ sockc.transmit_time = 0;
sockc.tsflags = sk->sk_tsflags;
sockc.mark = sk->sk_mark;
if (msg->msg_controllen) {
@@ -2903,6 +2908,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
skb->dev = dev;
skb->priority = sk->sk_priority;
skb->mark = sockc.mark;
+ skb->tstamp = sockc.transmit_time;
if (has_vnet_hdr) {
err = virtio_net_hdr_to_skb(skb, &vnet_hdr, vio_le());