netdev - [RFC v3 net-next 11/18] net: packet: Handle remaining txtime parameters

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Date:   Tue,  6 Mar 2018 17:12:23 -0800
From:   Jesus Sanchez-Palencia <jesus.sanchez-palencia@...el.com>
To:     netdev@...r.kernel.org
Cc:     jhs@...atatu.com, xiyou.wangcong@...il.com, jiri@...nulli.us,
        vinicius.gomes@...el.com, richardcochran@...il.com,
        intel-wired-lan@...ts.osuosl.org, anna-maria@...utronix.de,
        henrik@...tad.us, tglx@...utronix.de, john.stultz@...aro.org,
        levi.pearson@...man.com, edumazet@...gle.com, willemb@...gle.com,
        mlichvar@...hat.com,
        Jesus Sanchez-Palencia <jesus.sanchez-palencia@...el.com>
Subject: [RFC v3 net-next 11/18] net: packet: Handle remaining txtime parameters

Initialize clockid to CLOCKID_INVALID instead of 0 (i.e.
CLOCK_REALTIME), and copy both drop_if_late and clockid from CMSG cookie
into skb.

Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@...el.com>
---
 net/packet/af_packet.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index b2115fac2a8d..e455fbf5a356 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -94,6 +94,7 @@
 #endif
 #include <linux/bpf.h>
 #include <net/compat.h>
+#include <linux/posix-timers.h>
 
 #include "internal.h"
 
@@ -1977,6 +1978,8 @@ static int packet_sendmsg_spkt(struct socket *sock, struct msghdr *msg,
 	}
 
 	sockc.transmit_time = 0;
+	sockc.drop_if_late = 0;
+	sockc.clockid = CLOCKID_INVALID;
 	sockc.tsflags = sk->sk_tsflags;
 	if (msg->msg_controllen) {
 		err = sock_cmsg_send(sk, msg, &sockc);
@@ -1989,6 +1992,8 @@ static int packet_sendmsg_spkt(struct socket *sock, struct msghdr *msg,
 	skb->priority = sk->sk_priority;
 	skb->mark = sk->sk_mark;
 	skb->tstamp = sockc.transmit_time;
+	skb->tc_drop_if_late = sockc.drop_if_late;
+	skb->txtime_clockid = sockc.clockid;
 
 	sock_tx_timestamp(sk, sockc.tsflags, &skb_shinfo(skb)->tx_flags);
 
@@ -2487,6 +2492,8 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb,
 	skb->priority = po->sk.sk_priority;
 	skb->mark = po->sk.sk_mark;
 	skb->tstamp = sockc->transmit_time;
+	skb->tc_drop_if_late = sockc->drop_if_late;
+	skb->txtime_clockid = sockc->clockid;
 	sock_tx_timestamp(&po->sk, sockc->tsflags, &skb_shinfo(skb)->tx_flags);
 	skb_shinfo(skb)->destructor_arg = ph.raw;
 
@@ -2664,6 +2671,8 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 		goto out_put;
 
 	sockc.transmit_time = 0;
+	sockc.drop_if_late = 0;
+	sockc.clockid = CLOCKID_INVALID;
 	sockc.tsflags = po->sk.sk_tsflags;
 	if (msg->msg_controllen) {
 		err = sock_cmsg_send(&po->sk, msg, &sockc);
@@ -2861,6 +2870,8 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
 		goto out_unlock;
 
 	sockc.transmit_time = 0;
+	sockc.drop_if_late = 0;
+	sockc.clockid = CLOCKID_INVALID;
 	sockc.tsflags = sk->sk_tsflags;
 	sockc.mark = sk->sk_mark;
 	if (msg->msg_controllen) {
@@ -2934,6 +2945,8 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
 	skb->priority = sk->sk_priority;
 	skb->mark = sockc.mark;
 	skb->tstamp = sockc.transmit_time;
+	skb->tc_drop_if_late = sockc.drop_if_late;
+	skb->txtime_clockid = sockc.clockid;
 
 	if (has_vnet_hdr) {
 		err = virtio_net_hdr_to_skb(skb, &vnet_hdr, vio_le());
-- 
2.16.2