diff options
| author | Paolo Abeni <pabeni@redhat.com> | 2022-01-07 03:20:16 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-01-07 14:27:06 +0300 |
| commit | b29fcfb54cd70caca5b11c80d8d238854938884a (patch) | |
| tree | ce6469a982603e3dddbe67c5c3205b961324e437 /net/mptcp/protocol.h | |
| parent | f284c0c7732189fa77567dc061c5f4205c4fa05b (diff) | |
| download | linux-b29fcfb54cd70caca5b11c80d8d238854938884a.tar.xz | |
mptcp: full disconnect implementation
The current mptcp_disconnect() implementation lacks several
steps, we additionally need to reset the msk socket state
and flush the subflow list.
Factor out the needed helper to avoid code duplication.
Additionally ensure that the initial subflow is disposed
only after mptcp_close(), just reset it at disconnect time.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mptcp/protocol.h')
| -rw-r--r-- | net/mptcp/protocol.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index f177936ff67d..1a4ca5a202c8 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -395,6 +395,9 @@ DECLARE_PER_CPU(struct mptcp_delegated_action, mptcp_delegated_actions); /* MPTCP subflow context */ struct mptcp_subflow_context { struct list_head node;/* conn_list of subflows */ + + char reset_start[0]; + unsigned long avg_pacing_rate; /* protected by msk socket lock */ u64 local_key; u64 remote_key; @@ -442,6 +445,9 @@ struct mptcp_subflow_context { u8 stale_count; long delegated_status; + + char reset_end[0]; + struct list_head delegated_node; /* link into delegated_action, protected by local BH */ u32 setsockopt_seq; @@ -473,6 +479,13 @@ mptcp_subflow_tcp_sock(const struct mptcp_subflow_context *subflow) return subflow->tcp_sock; } +static inline void +mptcp_subflow_ctx_reset(struct mptcp_subflow_context *subflow) +{ + memset(subflow->reset_start, 0, subflow->reset_end - subflow->reset_start); + subflow->request_mptcp = 1; +} + static inline u64 mptcp_subflow_get_map_offset(const struct mptcp_subflow_context *subflow) { @@ -713,6 +726,7 @@ void mptcp_crypto_hmac_sha(u64 key1, u64 key2, u8 *msg, int len, void *hmac); void __init mptcp_pm_init(void); void mptcp_pm_data_init(struct mptcp_sock *msk); +void mptcp_pm_data_reset(struct mptcp_sock *msk); void mptcp_pm_subflow_chk_stale(const struct mptcp_sock *msk, struct sock *ssk); void mptcp_pm_nl_subflow_chk_stale(const struct mptcp_sock *msk, struct sock *ssk); void mptcp_pm_new_connection(struct mptcp_sock *msk, const struct sock *ssk, int server_side); |