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authorKishen Maloor <kishen.maloor@intel.com>2022-05-02 13:52:37 -0700
committerJakub Kicinski <kuba@kernel.org>2022-05-03 16:54:55 -0700
commit304ab97f4c7c49dc6a1d1dac04cabba602a25c43 (patch)
tree2b54925c0dd3bd935d128ad6cff513073879e196 /net/mptcp
parent41b3c69bf9414375319290c59f198ff5c71d273f (diff)
mptcp: allow ADD_ADDR reissuance by userspace PMs
This change allows userspace PM implementations to reissue ADD_ADDR announcements (if necessary) based on their chosen policy. Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Kishen Maloor <kishen.maloor@intel.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mptcp')
-rw-r--r--net/mptcp/pm_netlink.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index a4430c576ce9..98b205c2c101 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -369,8 +369,16 @@ static bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk,
lockdep_assert_held(&msk->pm.lock);
- if (mptcp_lookup_anno_list_by_saddr(msk, &entry->addr))
- return false;
+ add_entry = mptcp_lookup_anno_list_by_saddr(msk, &entry->addr);
+
+ if (add_entry) {
+ if (mptcp_pm_is_kernel(msk))
+ return false;
+
+ sk_reset_timer(sk, &add_entry->add_timer,
+ jiffies + mptcp_get_add_addr_timeout(net));
+ return true;
+ }
add_entry = kmalloc(sizeof(*add_entry), GFP_ATOMIC);
if (!add_entry)