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[99.241.198.116]) by smtp.gmail.com with ESMTPSA id h7-20020a92c087000000b002cd809af4e4sm5435072ile.56.2022.04.25.16.39.09 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 25 Apr 2022 16:39:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1650929952; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=97LnQX+iWnm8/SAWY3ZLNjNkHl1aDQ7WHKhz4ajwKNo=; b=K1sVJfsRTcch0X5Aaxd63pnJuhkaFaRNA+mbP2YO5e7aCn+4SjxIsFb/H03GUoOCUlftuZ wuBsYo3tLEJXFLEiUWfFJe52Ewi9877/jTJ4eZsWqw+RMIhPCVif65XKekOVxo2ZvG68FJ XDII6rKPMA0uCU9MCZ+I/FGkbPnpn+0= X-MC-Unique: RzXLxdRDO4ahEMPC8jxIjA-1 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=97LnQX+iWnm8/SAWY3ZLNjNkHl1aDQ7WHKhz4ajwKNo=; b=Ke5c6MxafOLRTETODnR73wQmgxYAjg5dE+D2TVX26F7smAaP+mEYsIPqTQ0reLUdzN CaIh2nx9qlBDmm6vX2UWC7rsBtQK5j+aFOwV290kNMOGf1d9NWqXg5OGiU8l/FnlvmJ+ caGYluzLorm4OY0B9jIUCOCY5WCAHxir3P1JZVnlY8xQHjPMNEThKtI8EImRA1dhp2sX JdA/wqg7ccj50D+/BHTZ7yjNTeEnVJdyosgDNl/eLP16Kxasb5XfHpKnU1EH6o52nJMp owiiSFJuePvqFfmSC3NsTxMLAubfplmZKaZZoezqUIE1Gruy7PMK6MPuOjWJF5TcrtAH lunw== X-Gm-Message-State: AOAM531sJGGBwjOS8fHCOkLmkZ+MpkO74WKfLTSMxfa1FxMHYilVKr2l X3JzlD5gxo1wa9RZ3Kd+edJzXB3dxj7KhBdTcZGa4E2A3fowo2lEEPQF/a9gfbzXQyjtz1yM+CJ H1EAsq17PfMRQ+UvlkM4SFVePmPHS5GnBhnOyg6K1B7RmeKsDi8SBsMdy6hCNCMKo X-Received: by 2002:a02:a68d:0:b0:32a:f755:821f with SMTP id j13-20020a02a68d000000b0032af755821fmr2212534jam.185.1650929950812; Mon, 25 Apr 2022 16:39:10 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzBI9Tad2Ea8iLqabEDhBhnV3YgRlRuyEp2TN2pH/tEs8NZvWtyUW8E96wg0M2atjA2Bgc6cw== X-Received: by 2002:a02:a68d:0:b0:32a:f755:821f with SMTP id j13-20020a02a68d000000b0032af755821fmr2212520jam.185.1650929950479; Mon, 25 Apr 2022 16:39:10 -0700 (PDT) From: Peter Xu To: qemu-devel@nongnu.org Subject: [PATCH v5 18/21] migration: Enable TLS for preempt channel Date: Mon, 25 Apr 2022 19:38:44 -0400 Message-Id: <20220425233847.10393-19-peterx@redhat.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220425233847.10393-1-peterx@redhat.com> References: <20220425233847.10393-1-peterx@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=peterx@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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: , Cc: Leonardo Bras Soares Passos , "Daniel P . Berrange" , "Dr . David Alan Gilbert" , peterx@redhat.com, Juan Quintela Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1650930824067100001 Content-Type: text/plain; charset="utf-8" This patch is based on the async preempt channel creation. It continues wiring up the new channel with TLS handshake to destionation when enabled. Note that only the src QEMU needs such operation; the dest QEMU does not need any change for TLS support due to the fact that all channels are established synchronously there, so all the TLS magic is already properly handled by migration_tls_channel_process_incoming(). Signed-off-by: Peter Xu --- migration/postcopy-ram.c | 57 ++++++++++++++++++++++++++++++++++------ migration/trace-events | 1 + 2 files changed, 50 insertions(+), 8 deletions(-) diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c index 1bb603051a..4a4da16389 100644 --- a/migration/postcopy-ram.c +++ b/migration/postcopy-ram.c @@ -36,6 +36,7 @@ #include "socket.h" #include "qemu-file-channel.h" #include "yank_functions.h" +#include "tls.h" =20 /* Arbitrary limit on size of each discard command, * keeps them around ~200 bytes @@ -1552,15 +1553,15 @@ bool postcopy_preempt_new_channel(MigrationIncoming= State *mis, QEMUFile *file) return true; } =20 +/* + * Setup the postcopy preempt channel with the IOC. If ERROR is specified, + * setup the error instead. This helper will free the ERROR if specified. + */ static void -postcopy_preempt_send_channel_new(QIOTask *task, gpointer opaque) +postcopy_preempt_send_channel_done(MigrationState *s, + QIOChannel *ioc, Error *local_err) { - MigrationState *s =3D opaque; - QIOChannel *ioc =3D QIO_CHANNEL(qio_task_get_source(task)); - Error *local_err =3D NULL; - - if (qio_task_propagate_error(task, &local_err)) { - /* Something wrong happened.. */ + if (local_err) { migrate_set_error(s, local_err); error_free(local_err); } else { @@ -1574,7 +1575,47 @@ postcopy_preempt_send_channel_new(QIOTask *task, gpo= inter opaque) * postcopy_qemufile_src to know whether it failed or not. */ qemu_sem_post(&s->postcopy_qemufile_src_sem); - object_unref(OBJECT(ioc)); +} + +static void +postcopy_preempt_tls_handshake(QIOTask *task, gpointer opaque) +{ + g_autoptr(QIOChannel) ioc =3D QIO_CHANNEL(qio_task_get_source(task)); + MigrationState *s =3D opaque; + Error *local_err =3D NULL; + + qio_task_propagate_error(task, &local_err); + postcopy_preempt_send_channel_done(s, ioc, local_err); +} + +static void +postcopy_preempt_send_channel_new(QIOTask *task, gpointer opaque) +{ + g_autoptr(QIOChannel) ioc =3D QIO_CHANNEL(qio_task_get_source(task)); + MigrationState *s =3D opaque; + QIOChannelTLS *tioc; + Error *local_err =3D NULL; + + if (qio_task_propagate_error(task, &local_err)) { + goto out; + } + + if (migrate_channel_requires_tls(ioc)) { + tioc =3D migration_tls_client_create(s, ioc, s->hostname, &local_e= rr); + if (!tioc) { + goto out; + } + trace_postcopy_preempt_tls_handshake(); + qio_channel_set_name(QIO_CHANNEL(tioc), "migration-tls-preempt"); + qio_channel_tls_handshake(tioc, postcopy_preempt_tls_handshake, + s, NULL, NULL); + /* Setup the channel until TLS handshake finished */ + return; + } + +out: + /* This handles both good and error cases */ + postcopy_preempt_send_channel_done(s, ioc, local_err); } =20 /* Returns 0 if channel established, -1 for error. */ diff --git a/migration/trace-events b/migration/trace-events index 0e385c3a07..a34afe7b85 100644 --- a/migration/trace-events +++ b/migration/trace-events @@ -287,6 +287,7 @@ postcopy_request_shared_page(const char *sharer, const = char *rb, uint64_t rb_off postcopy_request_shared_page_present(const char *sharer, const char *rb, u= int64_t rb_offset) "%s already %s offset 0x%"PRIx64 postcopy_wake_shared(uint64_t client_addr, const char *rb) "at 0x%"PRIx64"= in %s" postcopy_page_req_del(void *addr, int count) "resolved page req %p total %= d" +postcopy_preempt_tls_handshake(void) "" postcopy_preempt_new_channel(void) "" postcopy_preempt_thread_entry(void) "" postcopy_preempt_thread_exit(void) "" --=20 2.32.0