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mirror of https://github.com/SoftEtherVPN/SoftEtherVPN.git synced 2024-11-26 03:19:52 +03:00
Commit Graph

7 Commits

Author SHA1 Message Date
Davide Beatrici
96a2d5a124 src/Cedar: pass client hostname and cipher to Init() function in PROTO_IMPL
The SSTP implementation must be aware of the cipher in order to be able to report it to the server's internals (i.e. IPC).
2020-07-17 01:59:22 +02:00
Davide Beatrici
19dbdf46be Cedar: move buffer limit handling from ProtoHandleConnection() to protocol implementation
This allows greater control, required by SSTP: the limit only applies to data packets.
2020-07-12 03:09:12 +02:00
Davide Beatrici
eb5150a002 Cedar: change ProtoHandleConnection() so that it supports direct protocol specification 2020-07-12 03:05:51 +02:00
Davide Beatrici
a3aea00820 Cedar/Proto: implement UDP system
When a datagram is received, the matching session is looked up in a hash list; if it's not found, a new session is created.

This method allows to use a single UDP port for multiple protocols, as we do with TCP.

Also, each session has its own dedicated thread, used to process the received datagrams and generate the ones that are then sent through the UDP listener.

In addition to guaranteeing constant performance, separate threads also prevent a single one from blocking all sessions.
2020-05-11 08:22:44 +02:00
Davide Beatrici
667108319d Cedar: prepare Proto for UDP support
- An additional parameter is added to IsPacketForMe(), used to specify the protocol type (currently either TCP or UDP).
- SupportedModes() is dropped because it's now redundant.
- IsOk() and EstablishedSessions() are dropped because error checking should be handled by the implementation.
- ProtoImplDetect() now takes a buffer and its size rather than a SOCK, so that it can be used to detect UDP protocols.
- The OpenVPN toggle check is moved to ProtoImplDetect(), so that we don't have to duplicate it once UDP support is implemented.
2020-05-11 07:07:04 +02:00
Davide Beatrici
942051d3a8 Cedar: various improvements to Proto
The PROTO structure is now used to identify the system as a whole, rather than a single protocol. It's stored and initialized in Server.

ProtoCompare(), ProtoAdd() and ProtoDetected() are renamed to make the difference between PROTO and PROTO_IMPL more clear.

ProtoGet() and ProtoNum() are removed because the related list can now be accessed directly by Server.
2020-05-01 07:14:38 +02:00
Davide Beatrici
7d58e6bf60 Add interface for easy protocol implementation
This commit adds a protocol interface to the server, its purpose is to manage TCP connections and the various third-party protocols.

More specifically, ProtoHandleConnection() takes care of exchanging the packets between the local and remote endpoint; the protocol implementation only has to parse them and act accordingly.

The interface knows which protocol is the connection for by calling IsPacketForMe(), a function implemented for each protocol.
2019-07-26 08:36:54 +02:00