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bh=drAf2ZqbcEMpmG5RYs9TvH1b9uvNGa+eyhPOGwfB6JQ=; b=Fc97kRq45mw64Pm16RRWK401j5vIMlooxj6rayiPgvaBkWpv63bK/u2D4n3UG3u4nsZ9yu 3fZJ+wWwyv1puBKOCkHrbJCyouDvpbG0hESACpDbrUl60Q2GuYU0NH9jzJc3Hu4SYUOJoN JLHGh3VWKEFlqezdz9ssXPS2AQSAH2c= X-MC-Unique: EWOO4m2DMke7sUzJ4M3M7A-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: qemu-block@nongnu.org, Ronnie Sahlberg , Kevin Wolf , libvir-list@redhat.com, Gerd Hoffmann , Paolo Bonzini , Peter Lieven , Hanna Reitz , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Antoine Damhet , Charles Frey Subject: [PULL 2/5] io/channel-tls: fix handling of bigger read buffers Date: Wed, 15 Feb 2023 17:47:09 +0000 Message-Id: <20230215174712.1894516-3-berrange@redhat.com> In-Reply-To: <20230215174712.1894516-1-berrange@redhat.com> References: <20230215174712.1894516-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1676483950259100001 From: Antoine Damhet Since the TLS backend can read more data from the underlying QIOChannel we introduce a minimal child GSource to notify if we still have more data available to be read. Signed-off-by: Antoine Damhet Signed-off-by: Charles Frey Signed-off-by: Daniel P. Berrang=C3=A9 --- io/channel-tls.c | 66 +++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 65 insertions(+), 1 deletion(-) diff --git a/io/channel-tls.c b/io/channel-tls.c index c730cb8ec5..8052945ba0 100644 --- a/io/channel-tls.c +++ b/io/channel-tls.c @@ -389,12 +389,76 @@ static void qio_channel_tls_set_aio_fd_handler(QIOCha= nnel *ioc, qio_channel_set_aio_fd_handler(tioc->master, ctx, io_read, io_write, o= paque); } =20 +typedef struct QIOChannelTLSSource QIOChannelTLSSource; +struct QIOChannelTLSSource { + GSource parent; + QIOChannelTLS *tioc; +}; + +static gboolean +qio_channel_tls_source_check(GSource *source) +{ + QIOChannelTLSSource *tsource =3D (QIOChannelTLSSource *)source; + + return qcrypto_tls_session_check_pending(tsource->tioc->session) > 0; +} + +static gboolean +qio_channel_tls_source_prepare(GSource *source, gint *timeout) +{ + *timeout =3D -1; + return qio_channel_tls_source_check(source); +} + +static gboolean +qio_channel_tls_source_dispatch(GSource *source, GSourceFunc callback, + gpointer user_data) +{ + return G_SOURCE_CONTINUE; +} + +static void +qio_channel_tls_source_finalize(GSource *source) +{ + QIOChannelTLSSource *tsource =3D (QIOChannelTLSSource *)source; + + object_unref(OBJECT(tsource->tioc)); +} + +static GSourceFuncs qio_channel_tls_source_funcs =3D { + qio_channel_tls_source_prepare, + qio_channel_tls_source_check, + qio_channel_tls_source_dispatch, + qio_channel_tls_source_finalize +}; + +static void +qio_channel_tls_read_watch(QIOChannelTLS *tioc, GSource *source) +{ + GSource *child; + QIOChannelTLSSource *tlssource; + + child =3D g_source_new(&qio_channel_tls_source_funcs, + sizeof(QIOChannelTLSSource)); + tlssource =3D (QIOChannelTLSSource *)child; + + tlssource->tioc =3D tioc; + object_ref(OBJECT(tioc)); + + g_source_add_child_source(source, child); +} + static GSource *qio_channel_tls_create_watch(QIOChannel *ioc, GIOCondition condition) { QIOChannelTLS *tioc =3D QIO_CHANNEL_TLS(ioc); + GSource *source =3D qio_channel_create_watch(tioc->master, condition); + + if (condition & G_IO_IN) { + qio_channel_tls_read_watch(tioc, source); + } =20 - return qio_channel_create_watch(tioc->master, condition); + return source; } =20 QCryptoTLSSession * --=20 2.39.1