QUIC in single-stream mode could be used with a protocol where the
server writes first or the client writes first. This determines
whether the single stream would be client or server initiated,
which affects the stream ID allocated to the stream. We should support
both client-sends-first and server-sends-first application protocols.
Thus, defer default XSO creation until the point in time at which
we know whether a client-first or server-first application protocol
is being used. We do this by taking whether SSL_read() or SSL_write()
is called first as a cue.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20765)
We switch to instantiating the QUIC_CHANNEL up front at QCSO
instantiation time. This creates the QUIC_STREAM_MAP early and makes it
easy for us to allocate streams prior to connection initiation. The role
(client or server) is determined at QCSO allocation time and cannot be
changed.
SSL_set_connect/accept_state() are still modelled but their usage must
be consistent with the chosen SSL_METHOD which dictates which role is
being used.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20765)
In QUIC, we have an architectural need (in future, when we implement
0-RTT, etc.) to be able to create streams before we start connecting.
This requires we allocate a stream, including a stream ID, after
creating a QCSO but prior to connecting. However stream IDs are
dependent on whether the endpoint is in the client or server role,
therefore we must know whether we are going to be a client or server
before any pre-connection streams are created. Moreover, the originally
defined QUIC_client_method() and QUIC_server_method() functions heavily
implied the original plan was to have different SSL_METHODs for clients
and servers. Up until now we had been relying on
SSL_set_connect/accept_state() instead.
Solve these problems by basing client/server identity on whether
QUIC_server_method() is used (in future, when we support servers). This
ensures that once a QCSO is created its client/server identity are fixed
and cannot change, allowing pre-connection stream IDs, etc. to be
allocated.
Client/server uncertainty was the primary reason why QUIC_CHANNEL
creation was deferred until connection time up until now, so this
enables further refactoring to facilitate eager allocation of the
QUIC_CHANNEL at QCSO allocation time. This is important as allocating a
stream including its write buffers is hard without having the
QUIC_CHANNEL (which owns the QUIC_STREAM_MAP) in existence.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20765)
We now refactor the interface between ssl_lib.c frontend functions and
the QUIC API Personality Layer so that the respective functions
comprising the interface use SSL object pointers rather than raw
QUIC_CONNECTION pointers. This is in preparation for stream support
since once streams are supported, calls to e.g. ossl_quic_write() may be
made on a QUIC_CONNECTION or a QUIC_XSO (that is, a stream object). Thus
we take a uniform approach across all functions comprising the interface
between the ssl_lib.c frontend and the QUIC API Personality Layer of
using SSL pointers always. This provides a uniform approach and
ensures that any function of the API personality layer can be easily
adapted to support being called on a stream object in the future.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20765)
Uniform changes to all dispatch functions to use the new dispatch
functionality follows this commit. Separated into a core commit
and a commit containing the uniform pattern (monotonous) changes
for ease of review.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20765)
For example if would be helpful if we got more useful information if the
caller forgot to set the peer address.
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20514)
If the QUIC oject receives a ctrl it does not recognise, the chances are
it is intended for the underlying SSL object - so we forward unknown ctrls
there.
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20514)
QUIC TLS was sending some ciphersuites twice in the ClientHello. This
was due to us declaring some TLSv1.3 ciphersuites in the list intended to
describe the TLSv1.2 ciphersuites supported by the SSL_METHOD.
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20148)
We enable querying of the termination reason which is useful for tests.
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20030)
The user_ssl field in an SSL_CONNECTION is no longer used - so remove it.
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19748)
We start using the QUIC TLS implementation rather than the dummy one.
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19748)
The "user" SSL object which represents the QUIC connection should have an
"inner" SSL object to represent the TLS connection.
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19748)
