diff mbox series

[v4,mptcp-next,06/13] mptcp: send out dedicated packet for ADD_ADDR using port

Message ID eb4394c800f0e22e04c6d9f1cb7fad2fcdd78b13.1604984546.git.geliangtang@gmail.com
State Accepted, archived
Commit e58558aaa818aa8aba295269c147426ae96b891b
Delegated to: Matthieu Baerts
Headers show
Series ADD_ADDR: ports support | expand

Commit Message

Geliang Tang Nov. 10, 2020, 5:14 a.m. UTC 
The process is similar to that of the ADD_ADDR IPv6, this patch also sent
out a pure ack for the ADD_ADDR using port.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
---
 net/mptcp/options.c    |  3 ++-
 net/mptcp/pm.c         |  3 ++-
 net/mptcp/pm_netlink.c | 14 +++++++++++---
 3 files changed, 15 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index 2458c5a59d31..ff40e64c43db 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -589,7 +589,8 @@  static bool mptcp_established_options_add_addr(struct sock *sk, struct sk_buff *
 	bool port;
 	int len;
 
-	if (mptcp_pm_should_add_signal_ipv6(msk) &&
+	if ((mptcp_pm_should_add_signal_ipv6(msk) ||
+	     mptcp_pm_should_add_signal_port(msk)) &&
 	    skb && skb_is_tcp_pure_ack(skb)) {
 		pr_debug("drop other suboptions");
 		opts->suboptions = 0;
diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c
index 6d4be02681fa..0c456747893e 100644
--- a/net/mptcp/pm.c
+++ b/net/mptcp/pm.c
@@ -167,7 +167,8 @@  void mptcp_pm_add_addr_received(struct mptcp_sock *msk,
 
 void mptcp_pm_add_addr_send_ack(struct mptcp_sock *msk)
 {
-	if (!mptcp_pm_should_add_signal_ipv6(msk))
+	if (!mptcp_pm_should_add_signal_ipv6(msk) &&
+	    !mptcp_pm_should_add_signal_port(msk))
 		return;
 
 	mptcp_pm_schedule_work(msk, MPTCP_PM_ADD_ADDR_SEND_ACK);
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index 03f2c28f11f5..7a0f700e34bb 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -407,7 +407,8 @@  void mptcp_pm_nl_add_addr_send_ack(struct mptcp_sock *msk)
 {
 	struct mptcp_subflow_context *subflow;
 
-	if (!mptcp_pm_should_add_signal_ipv6(msk))
+	if (!mptcp_pm_should_add_signal_ipv6(msk) &&
+	    !mptcp_pm_should_add_signal_port(msk))
 		return;
 
 	__mptcp_flush_join_list(msk);
@@ -417,14 +418,21 @@  void mptcp_pm_nl_add_addr_send_ack(struct mptcp_sock *msk)
 		u8 add_addr;
 
 		spin_unlock_bh(&msk->pm.lock);
-		pr_debug("send ack for add_addr6");
+		if (mptcp_pm_should_add_signal_ipv6(msk))
+			pr_debug("send ack for add_addr6");
+		if (mptcp_pm_should_add_signal_port(msk))
+			pr_debug("send ack for add_addr_port");
+
 		lock_sock(ssk);
 		tcp_send_ack(ssk);
 		release_sock(ssk);
 		spin_lock_bh(&msk->pm.lock);
 
 		add_addr = READ_ONCE(msk->pm.add_addr_signal);
-		add_addr &= ~BIT(MPTCP_ADD_ADDR_IPV6);
+		if (mptcp_pm_should_add_signal_ipv6(msk))
+			add_addr &= ~BIT(MPTCP_ADD_ADDR_IPV6);
+		if (mptcp_pm_should_add_signal_port(msk))
+			add_addr &= ~BIT(MPTCP_ADD_ADDR_PORT);
 		WRITE_ONCE(msk->pm.add_addr_signal, add_addr);
 	}
 }