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authorWei Wang <weiwan@google.com>2020-09-09 17:50:47 -0700
committerDavid S. Miller <davem@davemloft.net>2020-09-10 13:15:40 -0700
commitde033b7d1568a8f1252055c96cdd99954d5450c4 (patch)
tree1c323222ce4d114d6ac3f9689cf5decfb916f06b
parente9b12edc133b54e15ecd105620d51fb8e8fa8bde (diff)
downloadlinux-de033b7d1568a8f1252055c96cdd99954d5450c4.tar.bz2
ip: pass tos into ip_build_and_send_pkt()
This commit adds tos as a new passed in parameter to ip_build_and_send_pkt() which will be used in the later commit. This is a pure restructure and does not have any functional change. Signed-off-by: Wei Wang <weiwan@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/ip.h2
-rw-r--r--net/dccp/ipv4.c6
-rw-r--r--net/ipv4/ip_output.c5
-rw-r--r--net/ipv4/tcp_ipv4.c3
4 files changed, 10 insertions, 6 deletions
diff --git a/include/net/ip.h b/include/net/ip.h
index b09c48d862cc..0f72bf8c0cbf 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -151,7 +151,7 @@ int igmp_mc_init(void);
int ip_build_and_send_pkt(struct sk_buff *skb, const struct sock *sk,
__be32 saddr, __be32 daddr,
- struct ip_options_rcu *opt);
+ struct ip_options_rcu *opt, u8 tos);
int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
struct net_device *orig_dev);
void ip_list_rcv(struct list_head *head, struct packet_type *pt,
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index d8f3751a512b..bb3d70664dde 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -495,7 +495,8 @@ static int dccp_v4_send_response(const struct sock *sk, struct request_sock *req
rcu_read_lock();
err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr,
ireq->ir_rmt_addr,
- rcu_dereference(ireq->ireq_opt));
+ rcu_dereference(ireq->ireq_opt),
+ inet_sk(sk)->tos);
rcu_read_unlock();
err = net_xmit_eval(err);
}
@@ -537,7 +538,8 @@ static void dccp_v4_ctl_send_reset(const struct sock *sk, struct sk_buff *rxskb)
local_bh_disable();
bh_lock_sock(ctl_sk);
err = ip_build_and_send_pkt(skb, ctl_sk,
- rxiph->daddr, rxiph->saddr, NULL);
+ rxiph->daddr, rxiph->saddr, NULL,
+ inet_sk(ctl_sk)->tos);
bh_unlock_sock(ctl_sk);
if (net_xmit_eval(err) == 0) {
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index b931d0b02e49..5fb536ff51f0 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -142,7 +142,8 @@ static inline int ip_select_ttl(struct inet_sock *inet, struct dst_entry *dst)
*
*/
int ip_build_and_send_pkt(struct sk_buff *skb, const struct sock *sk,
- __be32 saddr, __be32 daddr, struct ip_options_rcu *opt)
+ __be32 saddr, __be32 daddr, struct ip_options_rcu *opt,
+ u8 tos)
{
struct inet_sock *inet = inet_sk(sk);
struct rtable *rt = skb_rtable(skb);
@@ -155,7 +156,7 @@ int ip_build_and_send_pkt(struct sk_buff *skb, const struct sock *sk,
iph = ip_hdr(skb);
iph->version = 4;
iph->ihl = 5;
- iph->tos = inet->tos;
+ iph->tos = tos;
iph->ttl = ip_select_ttl(inet, &rt->dst);
iph->daddr = (opt && opt->opt.srr ? opt->opt.faddr : daddr);
iph->saddr = saddr;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index af27cfa9d8d3..c4c7ad4c8b5a 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -985,7 +985,8 @@ static int tcp_v4_send_synack(const struct sock *sk, struct dst_entry *dst,
rcu_read_lock();
err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr,
ireq->ir_rmt_addr,
- rcu_dereference(ireq->ireq_opt));
+ rcu_dereference(ireq->ireq_opt),
+ inet_sk(sk)->tos);
rcu_read_unlock();
err = net_xmit_eval(err);
}