diff options
| author |   Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com> | 2018-07-03 15:42:49 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-07-04 22:30:27 +0900 |
| commit | bc969a977880511057053642a81371196303ca01 (patch) | |
| tree | b7340f31fc5705adefd32a92fe25c777c52f1bc6 /net/ipv4/ip_output.c | |
| parent | net: Add a new socket option for a future transmit time. (diff) | |
| download | wireguard-linux-bc969a977880511057053642a81371196303ca01.tar.xz wireguard-linux-bc969a977880511057053642a81371196303ca01.zip | |
net: ipv4: Hook into time based transmission
Add a transmit_time field to struct inet_cork, then copy the
timestamp from the CMSG cookie at ip_setup_cork() so we can
safely copy it into the skb later during __ip_make_skb().
For the raw fast path, just perform the copy at raw_send_hdrinc().
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/ipv4/ip_output.c')
| -rw-r--r-- | net/ipv4/ip_output.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 188cc586e7ff..570e3ebc3974 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -1154,6 +1154,7 @@ static int ip_setup_cork(struct sock *sk, struct inet_cork *cork, cork->tos = ipc->tos; cork->priority = ipc->priority; cork->tx_flags = ipc->tx_flags; + cork->transmit_time = ipc->sockc.transmit_time; return 0; } @@ -1414,6 +1415,7 @@ struct sk_buff *__ip_make_skb(struct sock *sk, skb->priority = (cork->tos != -1) ? cork->priority: sk->sk_priority; skb->mark = sk->sk_mark; + skb->tstamp = cork->transmit_time; /* * Steal rt from cork.dst to avoid a pair of atomic_inc/atomic_dec * on dst refcount @@ -1551,6 +1553,7 @@ void ip_send_unicast_reply(struct sock *sk, struct sk_buff *skb, ipc.tx_flags = 0; ipc.ttl = 0; ipc.tos = -1; + ipc.sockc.transmit_time = 0; if (replyopts.opt.opt.optlen) { ipc.opt = &replyopts.opt; |