| Message ID | 303bf7865d2bae6f7eb563d2424e0dcbfa2b9bef.1710173427.git.lucien.xin@gmail.com (mailing list archive) |
|---|---|
| State | RFC |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | net: In-kernel QUIC implementation with Userspace handshake | expand |
diff --git a/include/linux/socket.h b/include/linux/socket.h index cfcb7e2c3813..f6533dd520fd 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -384,6 +384,7 @@ struct ucred { #define SOL_MCTP 285 #define SOL_SMC 286 #define SOL_VSOCK 287 +#define SOL_QUIC 288 /* IPX options */ #define IPX_TYPE 1 diff --git a/include/uapi/linux/in.h b/include/uapi/linux/in.h index e682ab628dfa..3d7b35d1139a 100644 --- a/include/uapi/linux/in.h +++ b/include/uapi/linux/in.h @@ -81,6 +81,8 @@ enum { #define IPPROTO_ETHERNET IPPROTO_ETHERNET IPPROTO_RAW = 255, /* Raw IP packets */ #define IPPROTO_RAW IPPROTO_RAW + IPPROTO_QUIC = 261, /* A UDP-Based Multiplexed and Secure Transport */ +#define IPPROTO_QUIC IPPROTO_QUIC IPPROTO_MPTCP = 262, /* Multipath TCP connection */ #define IPPROTO_MPTCP IPPROTO_MPTCP IPPROTO_MAX
This patch adds IPPROTO_QUIC and SOL_QUIC constants to the networking subsystem. These definitions are essential for applications to set socket options and protocol identifiers related to the QUIC protocol. QUIC does not possess a protocol number allocated from IANA, and like IPPROTO_MPTCP, IPPROTO_QUIC is merely a value used when opening a QUIC socket with: socket(AF_INET, SOCK_STREAM, IPPROTO_QUIC); Note we did not opt for UDP ULP for QUIC implementation due to several considerations: - QUIC's connection Migration requires at least 2 UDP sockets for one QUIC connection at the same time, not to mention the multipath feature in one of its draft RFCs. - In-Kernel QUIC, as a Transport Protocol, wants to provide users with the TCP or SCTP like Socket APIs, like connect()/listen()/accept()... Note that a single UDP socket might even be used for multiple QUIC connections. The use of IPPROTO_QUIC type sockets over UDP tunnel will effectively address these challenges and provides a more flexible and scalable solution. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: Tyler Fanelli <tfanelli@redhat.com> Signed-off-by: Pengtao He <hepengtao@xiaomi.com> --- include/linux/socket.h | 1 + include/uapi/linux/in.h | 2 ++ 2 files changed, 3 insertions(+)