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| author |   Geliang Tang <geliangtang@gmail.com> | 2021-02-01 15:09:15 -0800 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2021-02-02 18:37:19 -0800 |
| commit | 5bc56388c74f0e64b32e343ea603609b146dcb96 (patch) | |
| tree | 84d3e8660fe6a1a02b91dc2475acd269dc671860 /net/mptcp/protocol.h | |
| parent | mptcp: add a new helper subflow_req_create_thmac (diff) | |
| download | linux-dev-5bc56388c74f0e64b32e343ea603609b146dcb96.tar.xz linux-dev-5bc56388c74f0e64b32e343ea603609b146dcb96.zip | |
mptcp: add port number check for MP_JOIN
This patch adds two new helpers, subflow_use_different_sport and
subflow_use_different_dport, to check whether the subflow's source or
destination port number is different from the msk's port number. When
receiving the MP_JOIN's SYN/SYNACK/ACK, we do these port number checks
and print out the different port numbers.
And furthermore, when receiving the MP_JOIN's SYN/ACK, we also use a new
helper mptcp_pm_sport_in_anno_list to check whether this port number is
announced. If it isn't, we need to abort this connection.
This patch also populates the local address's port field in
local_address.
Signed-off-by: Geliang Tang <geliangtang@gmail.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/protocol.h')
| -rw-r--r-- | net/mptcp/protocol.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index 4e071d9264dc..1cc7948a1826 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -650,6 +650,7 @@ int mptcp_pm_nl_mp_prio_send_ack(struct mptcp_sock *msk, struct mptcp_addr_info *addr, u8 bkup); void mptcp_pm_free_anno_list(struct mptcp_sock *msk); +bool mptcp_pm_sport_in_anno_list(struct mptcp_sock *msk, const struct sock *sk); struct mptcp_pm_add_entry * mptcp_pm_del_add_timer(struct mptcp_sock *msk, struct mptcp_addr_info *addr); |