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Commit Graph

22 Commits

Author SHA1 Message Date
Udip Pant
80b3a9f393 add more checks for internally forwarded data
Summary:
This adds checks for forwarded data on all the possible branches that lead to
forwarding of packets to another process

Reviewed By: mjoras

Differential Revision: D18416971

fbshipit-source-id: 22dc3fd63de615904a411f90164a138bf0ef56e0
2019-11-18 11:05:36 -08:00
Yang Chi
97cfde6af3 Remove Quic transport from source address map after usage of Cid data
Summary:
Before any CID is available, the source address routing
table might be the only owner of the transport. Removing the transport from
there deletes the transport. connectionIdData param is a const ref to a member
of the connection state owned by the transport. So deleting transport also
deletes this vector, which makes the const ref invalidated.

Reviewed By: vchynarov

Differential Revision: D18253200

fbshipit-source-id: 728b15d0872164ba6549a32e10a5a3611e808f27
2019-11-01 11:32:25 -07:00
Viktor Chynarov
fb39e9c520 Issue initial server conn id using helper [2/x]
Summary:
Using the helper introduced in the previous diff, we replace generating the
initial server connection id, adding it to the selfConnectionIds, and
generating the initial stateless reset token.

Reviewed By: yangchi

Differential Revision: D18066595

fbshipit-source-id: f37450eecf0926ec145bc7a7194f2a1651cae024
2019-10-28 17:46:58 -07:00
Viktor Chynarov
27536bc1e4 Delete all transport connIds from server connIdMap on unbound [3/3]
Summary:
This diff is the one that introduces+passes the test of multiple server conn
ids routing to a single transport.

Currently, there is still only one time in non-test code that more than one
server connection id is added. This diff ensures when we call connectionUnbound
we remove all associated connection ids.

Reviewed By: udippant

Differential Revision: D17479563

fbshipit-source-id: 8d0ebbf26251f7bef44cdea53dfd4ff93ab465ae
2019-10-09 08:25:07 -07:00
Yang Chi
6b41822007 Fix use after free in QuicServerWorker
Summary:
If the server connection is never generated, source address map may
have the only shared_ptr to the transport. Erase from the map then use the
transport is clearly a use-after-free bug.

Reviewed By: udippant, lnicco

Differential Revision: D17733297

fbshipit-source-id: 80d141293458920a0ba6c5eaed14dcbeec17d3ff
2019-10-02 23:00:49 -07:00
Subodh Iyengar
322eb2ebc4 remove codecresult variant
Summary: remove the variant for codec result and replace it with a custom variant type

Reviewed By: yangchi

Differential Revision: D17247099

fbshipit-source-id: 19e24c14732eb6e8496aee7064f20c48bdf254e0
2019-09-30 17:02:24 -07:00
Udip Pant
e3b792e7f1 set IP_PMTUDISC_PROBE instead of dontFragment (i.e. PMTUDISC_DO)
Summary:
mvfst will need to handle pmtu in an app specific way. So just set DF bits but
not pmtu.

Reviewed By: siyengar

Differential Revision: D17624134

fbshipit-source-id: 14f445bbb6a971efb8a3d550c84c3d4af53f8517
2019-09-27 13:14:33 -07:00
Viktor Chynarov
2bd01800f3 Use set of transports instead of connIdMap for server shutdown [2/x]
Summary:
Currently, there is a 1:1 relationship between conn Id and transports. So for
all connections with a bound connection id, we iterate over all
connectionIdMap_ entries and delete the associate transport.

This won't work if connectionIdMap_ will map multiple conn ids to a single
transport.

Reviewed By: JunqiWang

Differential Revision: D17456965

fbshipit-source-id: 8923540abf205cfd10ad09d637e8c05790b4acf9
2019-09-27 07:57:44 -07:00
Viktor Chynarov
0c836629cf Support for server routing multiple conn ids [1/x]
Summary:
Add new data structure, `ConnectionIdInfo` which is will store
ConnectionId, folly::SocketAddress, and uint64_t sequenceNumber.

Add `addConnectionId()` method to QuicServerTransport, which will both
create+add a `ConnectionIdData` object to `ServerConnectionIds` and
call `routingCb_->onConnectionIdAvailable`.

Add a matching-source address check in QuicServerWorker when matching
based on ConnectionId.

Update QuicServerTest to test for change of address on one conn id.

Right now the semantics (apart from dropping mismatched source addresses
on the same connection id) are the same. Only one conn id can ever be added.

After this, we need to allow the QuicServerWorker to
hold a list of transports. Right now, `shutdownAllConnections()` works
because the mapping of conn Id<->transport is 1:1.

Reviewed By: JunqiWang

Differential Revision: D17427573

fbshipit-source-id: 47b34d722fce8b48a5e185b0aeb05624a4fb8e94
2019-09-26 14:37:27 -07:00
Subodh Iyengar
6f6ed4d56e remove variant type for QuicPacket
Summary:
Remove the variant type for RegularQuicPacket and VersionNegotiationPacket.

This allows us to move version negotiation parsing to be only used on the client and only done explicitly
before a version is negotiated.

Reviewed By: yangchi

Differential Revision: D17242788

fbshipit-source-id: 502caf6849f0b7e6778f1470dc160d01f17a33af
2019-09-19 17:31:47 -07:00
Subodh Iyengar
04baa15a04 Custom variant type for packetheader
Summary:
Make a custom variant type for PacketHeader. By not relying on boost::variant
this reduces the code size of the implementation.

This uses a combination of a union type as well as a enum type to emulate a variant

Reviewed By: yangchi

Differential Revision: D17187589

fbshipit-source-id: 00c2b9b8dd3f3e73af766d84888b13b9d867165a
2019-09-19 17:31:47 -07:00
Viktor Chynarov
a7efbe7644 Remove unnecessary ParsedHeader wrapper struct [1/x]
Summary:
*Motivation*:
I realize there's a bit of duplication with packet parsing code, for instance,
`QuicHeaderCodec.cpp` is used in only one place, but it should be possible
to de-dupe some code.

First step, get rid of this unnecessary wrapper class.

Reviewed By: JunqiWang

Differential Revision: D17192229

fbshipit-source-id: c831abb05ae56e3ece4affd368d0f180e14fa133
2019-09-06 13:42:40 -07:00
Luca Niccolini
cf842aab47 cleanup some unused includes and using
Reviewed By: yangchi

Differential Revision: D16976466

fbshipit-source-id: c1fc2ee0795997f498ac7431542bbfbf1f0d2fb2
2019-08-24 02:03:39 -07:00
Matt Joras
049b512646 Write stream frame header and data separately.
Summary:
Prior to this diff we would clone out an entire flow control's worth of data from the writebuffer and then clone out a smaller portion of that to write into the packet builder. This is extremely wasteful when we have a large flow control window.

Additionally we would always write the stream data length field even when we are going to fill the remainder of the packet with the current stream frame. By first calculating the amount of data that needs to can be written and writing the header, we can now omit the data length field when we can fill the whole packet.

Reviewed By: yangchi

Differential Revision: D15769514

fbshipit-source-id: 95ac74eebcde87dd06de54405d7f69c42362e29c
2019-08-22 15:59:41 -07:00
Viktor Chynarov
b9bbc0d858 Remove clientConnId from ServerConnIdParams
Summary:
This parameter duplicates the one in the QuicConnectionStateBase.

It is set everywhere the canonical one is, and it isn't used directly in any
manner that is separate from QuicConnectionStateBase::clientConnId.

This diff changes the following:

 * removed clientConnId from ServerConnIdParams
 * add setter to directly initialize clientConnId on the transport from the
   connection
 * update tests

Reviewed By: udippant

Differential Revision: D16711180

fbshipit-source-id: 63e667aa0df8a79757f18fb3ffc178c7c9613e1a
2019-08-19 15:04:14 -07:00
Bonnie Xu
61bf94680a add QUIC_STATS for Stateless Reset
Summary: Added QUIC_STATS for stateless reset.

Reviewed By: afrind

Differential Revision: D16679632

fbshipit-source-id: a80179fd4f2f9b2cb1297af47687b4b8a190de84
2019-08-16 16:24:56 -07:00
Udip Pant
14b4c52fff fix a race condition in UDPReader in QuicServerTest
Summary:
if OnDataAvailable() gets called before the readOne(), then `bufPromise_` would
be null, and thus the available buffer (buf_) wouldn't get appended to the
bufPromise_.

Reviewed By: sharma95

Differential Revision: D15960463

fbshipit-source-id: b48df104a021a9e89e863d09a0124c6b19228113
2019-06-23 22:36:31 -07:00
Bonnie Xu
2762cc1597 Setup stateless reset token
Summary: Replace hard coded stateless reset token with a token from the stateless reset token generator.

Reviewed By: yangchi

Differential Revision: D15481858

fbshipit-source-id: 30c96843c38c616600466b2fabb6defd5fcc5799
2019-06-13 08:44:53 -07:00
Leonidas Kontothanassis
ddc845a855 Add connection drop logic for QUIC
Summary: Add connection drop logic for QUIC

Reviewed By: mjoras

Differential Revision: D15361528

fbshipit-source-id: 55d9bf9d818786f23c9c6d600ca928ba7b265d4f
2019-05-23 10:03:18 -07:00
Bonnie Xu
f4ae0a1efd Updated files to change syntax.
Summary: Changed existing chrono syntax to chrono_literals syntax.

Reviewed By: mjoras, sharma95

Differential Revision: D15374649

fbshipit-source-id: 40033e90cca226266ef85e4fec629f290bc5dae6
2019-05-20 12:10:46 -07:00
Udip Pant
f6e5cb9e14 T43271780 - Remove state machine from ServerStateMachine-inl.h
Summary:
1. removed ServerStateMachine-inl.h
2. Changed ServerState to enum
3. Removed QuicServerStateMachine
4. Introduced onServerReadData and on onServerClose which replace the state machine handlers

Reviewed By: siyengar

Differential Revision: D15042529

fbshipit-source-id: a34f841a8e6b17e625506fd9b4ccad81d9c04891
2019-04-30 18:34:38 -07:00
udippant
50d4939e9e Initial commit of mvfst 2019-04-22 23:42:46 -07:00