From: Yonglong Li <liyonglong@chinatelecom.cn>
To: mptcp@lists.linux.dev
Cc: mathew.j.martineau@linux.intel.com, geliangtang@gmail.com,
Yonglong Li <liyonglong@chinatelecom.cn>
Subject: [PATCH v6 2/4] mptcp: make MPTCP_ADD_ADDR_SIGNAL and MPTCP_ADD_ADDR_ECHO separate
Date: Tue, 29 Jun 2021 09:41:37 +0800 [thread overview]
Message-ID: <1624930899-99623-3-git-send-email-liyonglong@chinatelecom.cn> (raw)
In-Reply-To: <1624930899-99623-1-git-send-email-liyonglong@chinatelecom.cn>
MPTCP_ADD_ADDR_SIGNAL only for action of sending ADD_ADDR
MPTCP_ADD_ADDR_ECHO only for action of sending echo ADD_ADDR
add a mptcp_addr_info in struct mptcp_out_options for echo ADD_ADDR
to prepare for the next patch.
Signed-off-by: Yonglong Li <liyonglong@chinatelecom.cn>
---
net/mptcp/pm.c | 16 ++++++++++------
net/mptcp/pm_netlink.c | 4 ++--
net/mptcp/protocol.h | 6 ++++++
3 files changed, 18 insertions(+), 8 deletions(-)
diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c
index 6c427c8..cf873e9 100644
--- a/net/mptcp/pm.c
+++ b/net/mptcp/pm.c
@@ -18,19 +18,23 @@ int mptcp_pm_announce_addr(struct mptcp_sock *msk,
{
u8 add_addr = READ_ONCE(msk->pm.addr_signal);
- pr_debug("msk=%p, local_id=%d", msk, addr->id);
+ pr_debug("msk=%p, local_id=%d, echo:%d", msk, addr->id, echo);
lockdep_assert_held(&msk->pm.lock);
- if (add_addr) {
- pr_warn("addr_signal error, add_addr=%d", add_addr);
+ if (add_addr &
+ (echo ? BIT(MPTCP_ADD_ADDR_ECHO) : BIT(MPTCP_ADD_ADDR_SIGNAL))) {
+ pr_warn("addr_signal error, add_addr=%d, echo=%d", add_addr, echo);
return -EINVAL;
}
- msk->pm.local = *addr;
- add_addr |= BIT(MPTCP_ADD_ADDR_SIGNAL);
- if (echo)
+ if (echo) {
+ msk->pm.remote = *addr;
add_addr |= BIT(MPTCP_ADD_ADDR_ECHO);
+ } else {
+ msk->pm.local = *addr;
+ add_addr |= BIT(MPTCP_ADD_ADDR_SIGNAL);
+ }
if (addr->family == AF_INET6)
add_addr |= BIT(MPTCP_ADD_ADDR_IPV6);
if (addr->port)
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index d4732a4..0f302d2 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -317,14 +317,14 @@ static void mptcp_pm_add_timer(struct timer_list *timer)
if (!entry->addr.id)
return;
- if (mptcp_pm_should_add_signal(msk)) {
+ if (mptcp_pm_should_add_signal_addr(msk)) {
sk_reset_timer(sk, timer, jiffies + TCP_RTO_MAX / 8);
goto out;
}
spin_lock_bh(&msk->pm.lock);
- if (!mptcp_pm_should_add_signal(msk)) {
+ if (!mptcp_pm_should_add_signal_addr(msk)) {
pr_debug("retransmit ADD_ADDR id=%d", entry->addr.id);
mptcp_pm_announce_addr(msk, &entry->addr, false);
mptcp_pm_add_addr_send_ack(msk);
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index 160c2ab..a0b0ec0 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -708,6 +708,12 @@ void mptcp_event(enum mptcp_event_type type, const struct mptcp_sock *msk,
static inline bool mptcp_pm_should_add_signal(struct mptcp_sock *msk)
{
+ return READ_ONCE(msk->pm.addr_signal) &
+ (BIT(MPTCP_ADD_ADDR_SIGNAL) | BIT(MPTCP_ADD_ADDR_ECHO));
+}
+
+static inline bool mptcp_pm_should_add_signal_addr(struct mptcp_sock *msk)
+{
return READ_ONCE(msk->pm.addr_signal) & BIT(MPTCP_ADD_ADDR_SIGNAL);
}
--
1.8.3.1
next prev parent reply other threads:[~2021-06-29 1:42 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-29 1:41 [PATCH v6 0/4] mptcp: fix conflicts when using pm.add_signal in ADD_ADDR/echo and RM_ADDR process Yonglong Li
2021-06-29 1:41 ` [PATCH v6 1/4] mptcp: fix ADD_ADDR and RM_ADDR maybe flush addr_signal each other Yonglong Li
2021-06-29 5:43 ` Geliang Tang
2021-06-29 1:41 ` Yonglong Li [this message]
2021-06-29 1:41 ` [PATCH v6 3/4] mptcp: build ADD_ADDR/echo-ADD_ADDR option according pm.add_signal Yonglong Li
2021-06-29 5:58 ` Geliang Tang
2021-06-29 6:05 ` Geliang Tang
2021-06-29 7:01 ` Yonglong Li
2021-06-29 7:35 ` Geliang Tang
2021-06-29 7:54 ` Yonglong Li
2021-06-29 8:25 ` Geliang Tang
2021-06-30 1:30 ` Yonglong Li
2021-06-30 2:05 ` Geliang Tang
2021-06-30 6:50 ` Yonglong Li
2021-06-29 1:41 ` [PATCH v6 4/4] mptcp: remove MPTCP_ADD_ADDR_IPV6 and MPTCP_ADD_ADDR_PORT Yonglong Li
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