2015-03-02 21:13:13 +03:00
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/*
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* QEMU I/O channels TLS driver
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*
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* Copyright (c) 2015 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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2020-10-14 16:40:33 +03:00
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* version 2.1 of the License, or (at your option) any later version.
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2015-03-02 21:13:13 +03:00
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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*/
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2016-01-29 20:50:03 +03:00
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#include "qemu/osdep.h"
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include/qemu/osdep.h: Don't include qapi/error.h
Commit 57cb38b included qapi/error.h into qemu/osdep.h to get the
Error typedef. Since then, we've moved to include qemu/osdep.h
everywhere. Its file comment explains: "To avoid getting into
possible circular include dependencies, this file should not include
any other QEMU headers, with the exceptions of config-host.h,
compiler.h, os-posix.h and os-win32.h, all of which are doing a
similar job to this file and are under similar constraints."
qapi/error.h doesn't do a similar job, and it doesn't adhere to
similar constraints: it includes qapi-types.h. That's in excess of
100KiB of crap most .c files don't actually need.
Add the typedef to qemu/typedefs.h, and include that instead of
qapi/error.h. Include qapi/error.h in .c files that need it and don't
get it now. Include qapi-types.h in qom/object.h for uint16List.
Update scripts/clean-includes accordingly. Update it further to match
reality: replace config.h by config-target.h, add sysemu/os-posix.h,
sysemu/os-win32.h. Update the list of includes in the qemu/osdep.h
comment quoted above similarly.
This reduces the number of objects depending on qapi/error.h from "all
of them" to less than a third. Unfortunately, the number depending on
qapi-types.h shrinks only a little. More work is needed for that one.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
[Fix compilation without the spice devel packages. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-14 11:01:28 +03:00
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#include "qapi/error.h"
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2019-05-23 17:35:07 +03:00
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#include "qemu/module.h"
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2015-03-02 21:13:13 +03:00
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#include "io/channel-tls.h"
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#include "trace.h"
|
2020-12-28 18:08:55 +03:00
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#include "qemu/atomic.h"
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2015-03-02 21:13:13 +03:00
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static ssize_t qio_channel_tls_write_handler(const char *buf,
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size_t len,
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void *opaque)
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{
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QIOChannelTLS *tioc = QIO_CHANNEL_TLS(opaque);
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ssize_t ret;
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ret = qio_channel_write(tioc->master, buf, len, NULL);
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if (ret == QIO_CHANNEL_ERR_BLOCK) {
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errno = EAGAIN;
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return -1;
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} else if (ret < 0) {
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errno = EIO;
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return -1;
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}
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return ret;
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}
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static ssize_t qio_channel_tls_read_handler(char *buf,
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size_t len,
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void *opaque)
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{
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QIOChannelTLS *tioc = QIO_CHANNEL_TLS(opaque);
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ssize_t ret;
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ret = qio_channel_read(tioc->master, buf, len, NULL);
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if (ret == QIO_CHANNEL_ERR_BLOCK) {
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errno = EAGAIN;
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return -1;
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} else if (ret < 0) {
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errno = EIO;
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return -1;
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}
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return ret;
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}
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QIOChannelTLS *
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qio_channel_tls_new_server(QIOChannel *master,
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QCryptoTLSCreds *creds,
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const char *aclname,
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Error **errp)
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{
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QIOChannelTLS *ioc;
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ioc = QIO_CHANNEL_TLS(object_new(TYPE_QIO_CHANNEL_TLS));
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ioc->master = master;
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object_ref(OBJECT(master));
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ioc->session = qcrypto_tls_session_new(
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creds,
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NULL,
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aclname,
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QCRYPTO_TLS_CREDS_ENDPOINT_SERVER,
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errp);
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if (!ioc->session) {
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goto error;
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}
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qcrypto_tls_session_set_callbacks(
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ioc->session,
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qio_channel_tls_write_handler,
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qio_channel_tls_read_handler,
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ioc);
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trace_qio_channel_tls_new_server(ioc, master, creds, aclname);
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return ioc;
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error:
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object_unref(OBJECT(ioc));
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return NULL;
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}
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QIOChannelTLS *
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qio_channel_tls_new_client(QIOChannel *master,
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QCryptoTLSCreds *creds,
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const char *hostname,
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Error **errp)
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{
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QIOChannelTLS *tioc;
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QIOChannel *ioc;
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tioc = QIO_CHANNEL_TLS(object_new(TYPE_QIO_CHANNEL_TLS));
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ioc = QIO_CHANNEL(tioc);
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tioc->master = master;
|
2016-09-29 18:52:36 +03:00
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if (qio_channel_has_feature(master, QIO_CHANNEL_FEATURE_SHUTDOWN)) {
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2016-09-29 18:52:37 +03:00
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qio_channel_set_feature(ioc, QIO_CHANNEL_FEATURE_SHUTDOWN);
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2015-03-02 21:13:13 +03:00
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}
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object_ref(OBJECT(master));
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tioc->session = qcrypto_tls_session_new(
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creds,
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hostname,
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NULL,
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QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT,
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errp);
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if (!tioc->session) {
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goto error;
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}
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qcrypto_tls_session_set_callbacks(
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tioc->session,
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qio_channel_tls_write_handler,
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qio_channel_tls_read_handler,
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tioc);
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trace_qio_channel_tls_new_client(tioc, master, creds, hostname);
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return tioc;
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error:
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object_unref(OBJECT(tioc));
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return NULL;
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}
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2018-03-05 09:43:24 +03:00
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struct QIOChannelTLSData {
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QIOTask *task;
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GMainContext *context;
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};
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typedef struct QIOChannelTLSData QIOChannelTLSData;
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2015-03-02 21:13:13 +03:00
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static gboolean qio_channel_tls_handshake_io(QIOChannel *ioc,
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GIOCondition condition,
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gpointer user_data);
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static void qio_channel_tls_handshake_task(QIOChannelTLS *ioc,
|
2018-03-05 09:43:24 +03:00
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QIOTask *task,
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GMainContext *context)
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2015-03-02 21:13:13 +03:00
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{
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Error *err = NULL;
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QCryptoTLSSessionHandshakeStatus status;
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if (qcrypto_tls_session_handshake(ioc->session, &err) < 0) {
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trace_qio_channel_tls_handshake_fail(ioc);
|
2016-08-11 17:20:58 +03:00
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qio_task_set_error(task, err);
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qio_task_complete(task);
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return;
|
2015-03-02 21:13:13 +03:00
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}
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status = qcrypto_tls_session_get_handshake_status(ioc->session);
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if (status == QCRYPTO_TLS_HANDSHAKE_COMPLETE) {
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trace_qio_channel_tls_handshake_complete(ioc);
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if (qcrypto_tls_session_check_credentials(ioc->session,
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&err) < 0) {
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trace_qio_channel_tls_credentials_deny(ioc);
|
2016-08-11 17:20:58 +03:00
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qio_task_set_error(task, err);
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} else {
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trace_qio_channel_tls_credentials_allow(ioc);
|
2015-03-02 21:13:13 +03:00
|
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}
|
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qio_task_complete(task);
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|
} else {
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|
GIOCondition condition;
|
2018-03-05 09:43:24 +03:00
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|
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QIOChannelTLSData *data = g_new0(typeof(*data), 1);
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data->task = task;
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data->context = context;
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if (context) {
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g_main_context_ref(context);
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|
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}
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2015-03-02 21:13:13 +03:00
|
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if (status == QCRYPTO_TLS_HANDSHAKE_SENDING) {
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condition = G_IO_OUT;
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} else {
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|
|
condition = G_IO_IN;
|
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|
|
}
|
|
|
|
|
|
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|
trace_qio_channel_tls_handshake_pending(ioc, status);
|
2018-03-05 09:43:24 +03:00
|
|
|
qio_channel_add_watch_full(ioc->master,
|
|
|
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condition,
|
|
|
|
qio_channel_tls_handshake_io,
|
|
|
|
data,
|
|
|
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NULL,
|
|
|
|
context);
|
2015-03-02 21:13:13 +03:00
|
|
|
}
|
|
|
|
}
|
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|
|
|
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|
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|
|
|
static gboolean qio_channel_tls_handshake_io(QIOChannel *ioc,
|
|
|
|
GIOCondition condition,
|
|
|
|
gpointer user_data)
|
|
|
|
{
|
2018-03-05 09:43:24 +03:00
|
|
|
QIOChannelTLSData *data = user_data;
|
|
|
|
QIOTask *task = data->task;
|
|
|
|
GMainContext *context = data->context;
|
2015-03-02 21:13:13 +03:00
|
|
|
QIOChannelTLS *tioc = QIO_CHANNEL_TLS(
|
|
|
|
qio_task_get_source(task));
|
|
|
|
|
2018-03-05 09:43:24 +03:00
|
|
|
g_free(data);
|
|
|
|
qio_channel_tls_handshake_task(tioc, task, context);
|
|
|
|
|
|
|
|
if (context) {
|
|
|
|
g_main_context_unref(context);
|
|
|
|
}
|
2015-03-02 21:13:13 +03:00
|
|
|
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
void qio_channel_tls_handshake(QIOChannelTLS *ioc,
|
|
|
|
QIOTaskFunc func,
|
|
|
|
gpointer opaque,
|
2018-03-05 09:43:24 +03:00
|
|
|
GDestroyNotify destroy,
|
|
|
|
GMainContext *context)
|
2015-03-02 21:13:13 +03:00
|
|
|
{
|
|
|
|
QIOTask *task;
|
|
|
|
|
|
|
|
task = qio_task_new(OBJECT(ioc),
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|
|
func, opaque, destroy);
|
|
|
|
|
|
|
|
trace_qio_channel_tls_handshake_start(ioc);
|
2018-03-05 09:43:24 +03:00
|
|
|
qio_channel_tls_handshake_task(ioc, task, context);
|
2015-03-02 21:13:13 +03:00
|
|
|
}
|
|
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|
|
|
|
|
|
|
|
|
static void qio_channel_tls_init(Object *obj G_GNUC_UNUSED)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void qio_channel_tls_finalize(Object *obj)
|
|
|
|
{
|
|
|
|
QIOChannelTLS *ioc = QIO_CHANNEL_TLS(obj);
|
|
|
|
|
|
|
|
object_unref(OBJECT(ioc->master));
|
|
|
|
qcrypto_tls_session_free(ioc->session);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static ssize_t qio_channel_tls_readv(QIOChannel *ioc,
|
|
|
|
const struct iovec *iov,
|
|
|
|
size_t niov,
|
|
|
|
int **fds,
|
|
|
|
size_t *nfds,
|
2022-12-20 21:44:17 +03:00
|
|
|
int flags,
|
2015-03-02 21:13:13 +03:00
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
QIOChannelTLS *tioc = QIO_CHANNEL_TLS(ioc);
|
|
|
|
size_t i;
|
|
|
|
ssize_t got = 0;
|
|
|
|
|
|
|
|
for (i = 0 ; i < niov ; i++) {
|
|
|
|
ssize_t ret = qcrypto_tls_session_read(tioc->session,
|
|
|
|
iov[i].iov_base,
|
|
|
|
iov[i].iov_len);
|
|
|
|
if (ret < 0) {
|
|
|
|
if (errno == EAGAIN) {
|
|
|
|
if (got) {
|
|
|
|
return got;
|
|
|
|
} else {
|
|
|
|
return QIO_CHANNEL_ERR_BLOCK;
|
|
|
|
}
|
2018-11-19 16:42:28 +03:00
|
|
|
} else if (errno == ECONNABORTED &&
|
2020-12-28 18:08:55 +03:00
|
|
|
(qatomic_load_acquire(&tioc->shutdown) &
|
|
|
|
QIO_CHANNEL_SHUTDOWN_READ)) {
|
2018-11-19 16:42:28 +03:00
|
|
|
return 0;
|
2015-03-02 21:13:13 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
error_setg_errno(errp, errno,
|
|
|
|
"Cannot read from TLS channel");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
got += ret;
|
|
|
|
if (ret < iov[i].iov_len) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return got;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static ssize_t qio_channel_tls_writev(QIOChannel *ioc,
|
|
|
|
const struct iovec *iov,
|
|
|
|
size_t niov,
|
|
|
|
int *fds,
|
|
|
|
size_t nfds,
|
2022-05-13 09:28:31 +03:00
|
|
|
int flags,
|
2015-03-02 21:13:13 +03:00
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
QIOChannelTLS *tioc = QIO_CHANNEL_TLS(ioc);
|
|
|
|
size_t i;
|
|
|
|
ssize_t done = 0;
|
|
|
|
|
|
|
|
for (i = 0 ; i < niov ; i++) {
|
|
|
|
ssize_t ret = qcrypto_tls_session_write(tioc->session,
|
|
|
|
iov[i].iov_base,
|
|
|
|
iov[i].iov_len);
|
|
|
|
if (ret <= 0) {
|
|
|
|
if (errno == EAGAIN) {
|
|
|
|
if (done) {
|
|
|
|
return done;
|
|
|
|
} else {
|
|
|
|
return QIO_CHANNEL_ERR_BLOCK;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
error_setg_errno(errp, errno,
|
|
|
|
"Cannot write to TLS channel");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
done += ret;
|
|
|
|
if (ret < iov[i].iov_len) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return done;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int qio_channel_tls_set_blocking(QIOChannel *ioc,
|
|
|
|
bool enabled,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
QIOChannelTLS *tioc = QIO_CHANNEL_TLS(ioc);
|
|
|
|
|
|
|
|
return qio_channel_set_blocking(tioc->master, enabled, errp);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void qio_channel_tls_set_delay(QIOChannel *ioc,
|
|
|
|
bool enabled)
|
|
|
|
{
|
|
|
|
QIOChannelTLS *tioc = QIO_CHANNEL_TLS(ioc);
|
|
|
|
|
|
|
|
qio_channel_set_delay(tioc->master, enabled);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void qio_channel_tls_set_cork(QIOChannel *ioc,
|
|
|
|
bool enabled)
|
|
|
|
{
|
|
|
|
QIOChannelTLS *tioc = QIO_CHANNEL_TLS(ioc);
|
|
|
|
|
|
|
|
qio_channel_set_cork(tioc->master, enabled);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int qio_channel_tls_shutdown(QIOChannel *ioc,
|
|
|
|
QIOChannelShutdown how,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
QIOChannelTLS *tioc = QIO_CHANNEL_TLS(ioc);
|
|
|
|
|
2020-12-28 18:08:55 +03:00
|
|
|
qatomic_or(&tioc->shutdown, how);
|
2018-11-19 16:42:28 +03:00
|
|
|
|
2015-03-02 21:13:13 +03:00
|
|
|
return qio_channel_shutdown(tioc->master, how, errp);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int qio_channel_tls_close(QIOChannel *ioc,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
QIOChannelTLS *tioc = QIO_CHANNEL_TLS(ioc);
|
|
|
|
|
|
|
|
return qio_channel_close(tioc->master, errp);
|
|
|
|
}
|
|
|
|
|
2017-02-13 16:52:22 +03:00
|
|
|
static void qio_channel_tls_set_aio_fd_handler(QIOChannel *ioc,
|
|
|
|
AioContext *ctx,
|
|
|
|
IOHandler *io_read,
|
|
|
|
IOHandler *io_write,
|
|
|
|
void *opaque)
|
|
|
|
{
|
|
|
|
QIOChannelTLS *tioc = QIO_CHANNEL_TLS(ioc);
|
|
|
|
|
|
|
|
qio_channel_set_aio_fd_handler(tioc->master, ctx, io_read, io_write, opaque);
|
|
|
|
}
|
|
|
|
|
2022-11-15 17:23:29 +03:00
|
|
|
typedef struct QIOChannelTLSSource QIOChannelTLSSource;
|
|
|
|
struct QIOChannelTLSSource {
|
|
|
|
GSource parent;
|
|
|
|
QIOChannelTLS *tioc;
|
|
|
|
};
|
|
|
|
|
|
|
|
static gboolean
|
|
|
|
qio_channel_tls_source_check(GSource *source)
|
|
|
|
{
|
|
|
|
QIOChannelTLSSource *tsource = (QIOChannelTLSSource *)source;
|
|
|
|
|
|
|
|
return qcrypto_tls_session_check_pending(tsource->tioc->session) > 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
|
|
|
qio_channel_tls_source_prepare(GSource *source, gint *timeout)
|
|
|
|
{
|
|
|
|
*timeout = -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 = (QIOChannelTLSSource *)source;
|
|
|
|
|
|
|
|
object_unref(OBJECT(tsource->tioc));
|
|
|
|
}
|
|
|
|
|
|
|
|
static GSourceFuncs qio_channel_tls_source_funcs = {
|
|
|
|
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 = g_source_new(&qio_channel_tls_source_funcs,
|
|
|
|
sizeof(QIOChannelTLSSource));
|
|
|
|
tlssource = (QIOChannelTLSSource *)child;
|
|
|
|
|
|
|
|
tlssource->tioc = tioc;
|
|
|
|
object_ref(OBJECT(tioc));
|
|
|
|
|
|
|
|
g_source_add_child_source(source, child);
|
2023-03-07 02:15:21 +03:00
|
|
|
g_source_unref(child);
|
2022-11-15 17:23:29 +03:00
|
|
|
}
|
|
|
|
|
2015-03-02 21:13:13 +03:00
|
|
|
static GSource *qio_channel_tls_create_watch(QIOChannel *ioc,
|
|
|
|
GIOCondition condition)
|
|
|
|
{
|
|
|
|
QIOChannelTLS *tioc = QIO_CHANNEL_TLS(ioc);
|
2022-11-15 17:23:29 +03:00
|
|
|
GSource *source = qio_channel_create_watch(tioc->master, condition);
|
|
|
|
|
|
|
|
if (condition & G_IO_IN) {
|
|
|
|
qio_channel_tls_read_watch(tioc, source);
|
|
|
|
}
|
2015-03-02 21:13:13 +03:00
|
|
|
|
2022-11-15 17:23:29 +03:00
|
|
|
return source;
|
2015-03-02 21:13:13 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
QCryptoTLSSession *
|
|
|
|
qio_channel_tls_get_session(QIOChannelTLS *ioc)
|
|
|
|
{
|
|
|
|
return ioc->session;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void qio_channel_tls_class_init(ObjectClass *klass,
|
|
|
|
void *class_data G_GNUC_UNUSED)
|
|
|
|
{
|
|
|
|
QIOChannelClass *ioc_klass = QIO_CHANNEL_CLASS(klass);
|
|
|
|
|
|
|
|
ioc_klass->io_writev = qio_channel_tls_writev;
|
|
|
|
ioc_klass->io_readv = qio_channel_tls_readv;
|
|
|
|
ioc_klass->io_set_blocking = qio_channel_tls_set_blocking;
|
|
|
|
ioc_klass->io_set_delay = qio_channel_tls_set_delay;
|
|
|
|
ioc_klass->io_set_cork = qio_channel_tls_set_cork;
|
|
|
|
ioc_klass->io_close = qio_channel_tls_close;
|
|
|
|
ioc_klass->io_shutdown = qio_channel_tls_shutdown;
|
|
|
|
ioc_klass->io_create_watch = qio_channel_tls_create_watch;
|
2017-02-13 16:52:22 +03:00
|
|
|
ioc_klass->io_set_aio_fd_handler = qio_channel_tls_set_aio_fd_handler;
|
2015-03-02 21:13:13 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
static const TypeInfo qio_channel_tls_info = {
|
|
|
|
.parent = TYPE_QIO_CHANNEL,
|
|
|
|
.name = TYPE_QIO_CHANNEL_TLS,
|
|
|
|
.instance_size = sizeof(QIOChannelTLS),
|
|
|
|
.instance_init = qio_channel_tls_init,
|
|
|
|
.instance_finalize = qio_channel_tls_finalize,
|
|
|
|
.class_init = qio_channel_tls_class_init,
|
|
|
|
};
|
|
|
|
|
|
|
|
static void qio_channel_tls_register_types(void)
|
|
|
|
{
|
|
|
|
type_register_static(&qio_channel_tls_info);
|
|
|
|
}
|
|
|
|
|
|
|
|
type_init(qio_channel_tls_register_types);
|