diff mbox series

[net-next,06/11] mptcp: send out dedicated packet for ADD_ADDR using port

Message ID 20201209235128.175473-7-mathew.j.martineau@linux.intel.com (mailing list archive)
State Accepted
Delegated to: Netdev Maintainers
Headers show
Series mptcp: Add port parameter to ADD_ADDR option | expand

Checks

Context Check Description
netdev/cover_letter success Link
netdev/fixes_present success Link
netdev/patch_count success Link
netdev/tree_selection success Clearly marked for net-next
netdev/subject_prefix success Link
netdev/source_inline success Was 0 now: 0
netdev/verify_signedoff success Link
netdev/module_param success Was 0 now: 0
netdev/build_32bit fail Errors and warnings before: 1 this patch: 2
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success Link
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 50 lines checked
netdev/build_allmodconfig_warn fail Errors and warnings before: 1 this patch: 2
netdev/header_inline success Link
netdev/stable success Stable not CCed

Commit Message

Mat Martineau Dec. 9, 2020, 11:51 p.m. UTC 
From: Geliang Tang <geliangtang@gmail.com>

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>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.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 9d3b49254d38..6a290c622ccf 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -590,7 +590,8 @@  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 2c517046e2b5..d20637860851 100644
--- a/net/mptcp/pm.c
+++ b/net/mptcp/pm.c
@@ -173,7 +173,8 @@  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);
 	}
 }