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| author |   Geliang Tang <geliangtang@gmail.com> | 2021-01-08 16:47:58 -0800 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2021-01-09 18:18:43 -0800 |
| commit | 40453a5c61f4dc43bbbdbf7cefed4eb1bc8d69b7 (patch) | |
| tree | 94b080da8490b181b03760f94462ff4c3517a525 /net/mptcp/protocol.h | |
| parent | mptcp: add the outgoing MP_PRIO support (diff) | |
| download | linux-dev-40453a5c61f4dc43bbbdbf7cefed4eb1bc8d69b7.tar.xz linux-dev-40453a5c61f4dc43bbbdbf7cefed4eb1bc8d69b7.zip | |
mptcp: add the incoming MP_PRIO support
This patch added the incoming MP_PRIO logic:
Added a flag named mp_prio in struct mptcp_options_received, to mark the
MP_PRIO is received, and save the priority value to struct
mptcp_options_received's backup member. Then invoke
mptcp_pm_mp_prio_received with the receiving subsocket and the backup
value.
In mptcp_pm_mp_prio_received, get the subflow context according the input
subsocket, and change the subflow's backup as the incoming priority value.
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 | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index 21763e00d990..d6400ad2d615 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -88,6 +88,9 @@ #define MPTCP_ADDR_IPVERSION_4 4 #define MPTCP_ADDR_IPVERSION_6 6 +/* MPTCP MP_PRIO flags */ +#define MPTCP_PRIO_BKUP BIT(0) + /* MPTCP socket flags */ #define MPTCP_DATA_READY 0 #define MPTCP_NOSPACE 1 @@ -118,6 +121,7 @@ struct mptcp_options_received { dss : 1, add_addr : 1, rm_addr : 1, + mp_prio : 1, family : 4, echo : 1, backup : 1; @@ -553,6 +557,7 @@ void mptcp_pm_add_addr_received(struct mptcp_sock *msk, const struct mptcp_addr_info *addr); void mptcp_pm_add_addr_send_ack(struct mptcp_sock *msk); void mptcp_pm_rm_addr_received(struct mptcp_sock *msk, u8 rm_id); +void mptcp_pm_mp_prio_received(struct sock *sk, u8 bkup); int mptcp_pm_nl_mp_prio_send_ack(struct mptcp_sock *msk, struct mptcp_addr_info *addr, u8 bkup); |