mirror of
https://github.com/qemu/qemu.git
synced 2024-11-27 13:53:45 +08:00
char: move udp chardev in its own file
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Marc-André Lureau
parent
d24ca4b8c5
commit
3b4482a26d
@ -5,5 +5,6 @@ chardev-obj-y += char-mux.o
|
||||
chardev-obj-y += char-null.o
|
||||
chardev-obj-y += char-ringbuf.o
|
||||
chardev-obj-y += char-socket.o
|
||||
chardev-obj-y += char-udp.o
|
||||
chardev-obj-$(CONFIG_WIN32) += char-win.o
|
||||
chardev-obj-$(CONFIG_WIN32) += char-win-stdio.o
|
||||
|
||||
233
chardev/char-udp.c
Normal file
233
chardev/char-udp.c
Normal file
@ -0,0 +1,233 @@
|
||||
/*
|
||||
* QEMU System Emulator
|
||||
*
|
||||
* Copyright (c) 2003-2008 Fabrice Bellard
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
#include "qemu/osdep.h"
|
||||
#include "sysemu/char.h"
|
||||
#include "io/channel-socket.h"
|
||||
#include "qapi/error.h"
|
||||
|
||||
#include "char-io.h"
|
||||
|
||||
/***********************************************************/
|
||||
/* UDP Net console */
|
||||
|
||||
typedef struct {
|
||||
Chardev parent;
|
||||
QIOChannel *ioc;
|
||||
uint8_t buf[CHR_READ_BUF_LEN];
|
||||
int bufcnt;
|
||||
int bufptr;
|
||||
int max_size;
|
||||
} UdpChardev;
|
||||
|
||||
#define UDP_CHARDEV(obj) OBJECT_CHECK(UdpChardev, (obj), TYPE_CHARDEV_UDP)
|
||||
|
||||
/* Called with chr_write_lock held. */
|
||||
static int udp_chr_write(Chardev *chr, const uint8_t *buf, int len)
|
||||
{
|
||||
UdpChardev *s = UDP_CHARDEV(chr);
|
||||
|
||||
return qio_channel_write(
|
||||
s->ioc, (const char *)buf, len, NULL);
|
||||
}
|
||||
|
||||
static int udp_chr_read_poll(void *opaque)
|
||||
{
|
||||
Chardev *chr = CHARDEV(opaque);
|
||||
UdpChardev *s = UDP_CHARDEV(opaque);
|
||||
|
||||
s->max_size = qemu_chr_be_can_write(chr);
|
||||
|
||||
/* If there were any stray characters in the queue process them
|
||||
* first
|
||||
*/
|
||||
while (s->max_size > 0 && s->bufptr < s->bufcnt) {
|
||||
qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
|
||||
s->bufptr++;
|
||||
s->max_size = qemu_chr_be_can_write(chr);
|
||||
}
|
||||
return s->max_size;
|
||||
}
|
||||
|
||||
static gboolean udp_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque)
|
||||
{
|
||||
Chardev *chr = CHARDEV(opaque);
|
||||
UdpChardev *s = UDP_CHARDEV(opaque);
|
||||
ssize_t ret;
|
||||
|
||||
if (s->max_size == 0) {
|
||||
return TRUE;
|
||||
}
|
||||
ret = qio_channel_read(
|
||||
s->ioc, (char *)s->buf, sizeof(s->buf), NULL);
|
||||
if (ret <= 0) {
|
||||
remove_fd_in_watch(chr);
|
||||
return FALSE;
|
||||
}
|
||||
s->bufcnt = ret;
|
||||
|
||||
s->bufptr = 0;
|
||||
while (s->max_size > 0 && s->bufptr < s->bufcnt) {
|
||||
qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
|
||||
s->bufptr++;
|
||||
s->max_size = qemu_chr_be_can_write(chr);
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void udp_chr_update_read_handler(Chardev *chr,
|
||||
GMainContext *context)
|
||||
{
|
||||
UdpChardev *s = UDP_CHARDEV(chr);
|
||||
|
||||
remove_fd_in_watch(chr);
|
||||
if (s->ioc) {
|
||||
chr->fd_in_tag = io_add_watch_poll(chr, s->ioc,
|
||||
udp_chr_read_poll,
|
||||
udp_chr_read, chr,
|
||||
context);
|
||||
}
|
||||
}
|
||||
|
||||
static void char_udp_finalize(Object *obj)
|
||||
{
|
||||
Chardev *chr = CHARDEV(obj);
|
||||
UdpChardev *s = UDP_CHARDEV(obj);
|
||||
|
||||
remove_fd_in_watch(chr);
|
||||
if (s->ioc) {
|
||||
object_unref(OBJECT(s->ioc));
|
||||
}
|
||||
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
|
||||
}
|
||||
|
||||
static void qemu_chr_parse_udp(QemuOpts *opts, ChardevBackend *backend,
|
||||
Error **errp)
|
||||
{
|
||||
const char *host = qemu_opt_get(opts, "host");
|
||||
const char *port = qemu_opt_get(opts, "port");
|
||||
const char *localaddr = qemu_opt_get(opts, "localaddr");
|
||||
const char *localport = qemu_opt_get(opts, "localport");
|
||||
bool has_local = false;
|
||||
SocketAddress *addr;
|
||||
ChardevUdp *udp;
|
||||
|
||||
backend->type = CHARDEV_BACKEND_KIND_UDP;
|
||||
if (host == NULL || strlen(host) == 0) {
|
||||
host = "localhost";
|
||||
}
|
||||
if (port == NULL || strlen(port) == 0) {
|
||||
error_setg(errp, "chardev: udp: remote port not specified");
|
||||
return;
|
||||
}
|
||||
if (localport == NULL || strlen(localport) == 0) {
|
||||
localport = "0";
|
||||
} else {
|
||||
has_local = true;
|
||||
}
|
||||
if (localaddr == NULL || strlen(localaddr) == 0) {
|
||||
localaddr = "";
|
||||
} else {
|
||||
has_local = true;
|
||||
}
|
||||
|
||||
udp = backend->u.udp.data = g_new0(ChardevUdp, 1);
|
||||
qemu_chr_parse_common(opts, qapi_ChardevUdp_base(udp));
|
||||
|
||||
addr = g_new0(SocketAddress, 1);
|
||||
addr->type = SOCKET_ADDRESS_KIND_INET;
|
||||
addr->u.inet.data = g_new(InetSocketAddress, 1);
|
||||
*addr->u.inet.data = (InetSocketAddress) {
|
||||
.host = g_strdup(host),
|
||||
.port = g_strdup(port),
|
||||
.has_ipv4 = qemu_opt_get(opts, "ipv4"),
|
||||
.ipv4 = qemu_opt_get_bool(opts, "ipv4", 0),
|
||||
.has_ipv6 = qemu_opt_get(opts, "ipv6"),
|
||||
.ipv6 = qemu_opt_get_bool(opts, "ipv6", 0),
|
||||
};
|
||||
udp->remote = addr;
|
||||
|
||||
if (has_local) {
|
||||
udp->has_local = true;
|
||||
addr = g_new0(SocketAddress, 1);
|
||||
addr->type = SOCKET_ADDRESS_KIND_INET;
|
||||
addr->u.inet.data = g_new(InetSocketAddress, 1);
|
||||
*addr->u.inet.data = (InetSocketAddress) {
|
||||
.host = g_strdup(localaddr),
|
||||
.port = g_strdup(localport),
|
||||
};
|
||||
udp->local = addr;
|
||||
}
|
||||
}
|
||||
|
||||
static void qmp_chardev_open_udp(Chardev *chr,
|
||||
ChardevBackend *backend,
|
||||
bool *be_opened,
|
||||
Error **errp)
|
||||
{
|
||||
ChardevUdp *udp = backend->u.udp.data;
|
||||
QIOChannelSocket *sioc = qio_channel_socket_new();
|
||||
char *name;
|
||||
UdpChardev *s = UDP_CHARDEV(chr);
|
||||
|
||||
if (qio_channel_socket_dgram_sync(sioc,
|
||||
udp->local, udp->remote,
|
||||
errp) < 0) {
|
||||
object_unref(OBJECT(sioc));
|
||||
return;
|
||||
}
|
||||
|
||||
name = g_strdup_printf("chardev-udp-%s", chr->label);
|
||||
qio_channel_set_name(QIO_CHANNEL(sioc), name);
|
||||
g_free(name);
|
||||
|
||||
s->ioc = QIO_CHANNEL(sioc);
|
||||
/* be isn't opened until we get a connection */
|
||||
*be_opened = false;
|
||||
}
|
||||
|
||||
static void char_udp_class_init(ObjectClass *oc, void *data)
|
||||
{
|
||||
ChardevClass *cc = CHARDEV_CLASS(oc);
|
||||
|
||||
cc->parse = qemu_chr_parse_udp;
|
||||
cc->open = qmp_chardev_open_udp;
|
||||
cc->chr_write = udp_chr_write;
|
||||
cc->chr_update_read_handler = udp_chr_update_read_handler;
|
||||
}
|
||||
|
||||
static const TypeInfo char_udp_type_info = {
|
||||
.name = TYPE_CHARDEV_UDP,
|
||||
.parent = TYPE_CHARDEV,
|
||||
.instance_size = sizeof(UdpChardev),
|
||||
.instance_finalize = char_udp_finalize,
|
||||
.class_init = char_udp_class_init,
|
||||
};
|
||||
|
||||
static void register_types(void)
|
||||
{
|
||||
type_register_static(&char_udp_type_info);
|
||||
}
|
||||
|
||||
type_init(register_types);
|
||||
198
chardev/char.c
198
chardev/char.c
@ -1513,100 +1513,6 @@ static const TypeInfo char_console_type_info = {
|
||||
|
||||
#endif /* !_WIN32 */
|
||||
|
||||
/***********************************************************/
|
||||
/* UDP Net console */
|
||||
|
||||
typedef struct {
|
||||
Chardev parent;
|
||||
QIOChannel *ioc;
|
||||
uint8_t buf[CHR_READ_BUF_LEN];
|
||||
int bufcnt;
|
||||
int bufptr;
|
||||
int max_size;
|
||||
} UdpChardev;
|
||||
|
||||
#define UDP_CHARDEV(obj) OBJECT_CHECK(UdpChardev, (obj), TYPE_CHARDEV_UDP)
|
||||
|
||||
/* Called with chr_write_lock held. */
|
||||
static int udp_chr_write(Chardev *chr, const uint8_t *buf, int len)
|
||||
{
|
||||
UdpChardev *s = UDP_CHARDEV(chr);
|
||||
|
||||
return qio_channel_write(
|
||||
s->ioc, (const char *)buf, len, NULL);
|
||||
}
|
||||
|
||||
static int udp_chr_read_poll(void *opaque)
|
||||
{
|
||||
Chardev *chr = CHARDEV(opaque);
|
||||
UdpChardev *s = UDP_CHARDEV(opaque);
|
||||
|
||||
s->max_size = qemu_chr_be_can_write(chr);
|
||||
|
||||
/* If there were any stray characters in the queue process them
|
||||
* first
|
||||
*/
|
||||
while (s->max_size > 0 && s->bufptr < s->bufcnt) {
|
||||
qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
|
||||
s->bufptr++;
|
||||
s->max_size = qemu_chr_be_can_write(chr);
|
||||
}
|
||||
return s->max_size;
|
||||
}
|
||||
|
||||
static gboolean udp_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque)
|
||||
{
|
||||
Chardev *chr = CHARDEV(opaque);
|
||||
UdpChardev *s = UDP_CHARDEV(opaque);
|
||||
ssize_t ret;
|
||||
|
||||
if (s->max_size == 0) {
|
||||
return TRUE;
|
||||
}
|
||||
ret = qio_channel_read(
|
||||
s->ioc, (char *)s->buf, sizeof(s->buf), NULL);
|
||||
if (ret <= 0) {
|
||||
remove_fd_in_watch(chr);
|
||||
return FALSE;
|
||||
}
|
||||
s->bufcnt = ret;
|
||||
|
||||
s->bufptr = 0;
|
||||
while (s->max_size > 0 && s->bufptr < s->bufcnt) {
|
||||
qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
|
||||
s->bufptr++;
|
||||
s->max_size = qemu_chr_be_can_write(chr);
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void udp_chr_update_read_handler(Chardev *chr,
|
||||
GMainContext *context)
|
||||
{
|
||||
UdpChardev *s = UDP_CHARDEV(chr);
|
||||
|
||||
remove_fd_in_watch(chr);
|
||||
if (s->ioc) {
|
||||
chr->fd_in_tag = io_add_watch_poll(chr, s->ioc,
|
||||
udp_chr_read_poll,
|
||||
udp_chr_read, chr,
|
||||
context);
|
||||
}
|
||||
}
|
||||
|
||||
static void char_udp_finalize(Object *obj)
|
||||
{
|
||||
Chardev *chr = CHARDEV(obj);
|
||||
UdpChardev *s = UDP_CHARDEV(obj);
|
||||
|
||||
remove_fd_in_watch(chr);
|
||||
if (s->ioc) {
|
||||
object_unref(OBJECT(s->ioc));
|
||||
}
|
||||
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
|
||||
}
|
||||
|
||||
int qemu_chr_wait_connected(Chardev *chr, Error **errp)
|
||||
{
|
||||
ChardevClass *cc = CHARDEV_GET_CLASS(chr);
|
||||
@ -1905,65 +1811,6 @@ static const TypeInfo char_pipe_type_info = {
|
||||
.class_init = char_pipe_class_init,
|
||||
};
|
||||
|
||||
static void qemu_chr_parse_udp(QemuOpts *opts, ChardevBackend *backend,
|
||||
Error **errp)
|
||||
{
|
||||
const char *host = qemu_opt_get(opts, "host");
|
||||
const char *port = qemu_opt_get(opts, "port");
|
||||
const char *localaddr = qemu_opt_get(opts, "localaddr");
|
||||
const char *localport = qemu_opt_get(opts, "localport");
|
||||
bool has_local = false;
|
||||
SocketAddress *addr;
|
||||
ChardevUdp *udp;
|
||||
|
||||
backend->type = CHARDEV_BACKEND_KIND_UDP;
|
||||
if (host == NULL || strlen(host) == 0) {
|
||||
host = "localhost";
|
||||
}
|
||||
if (port == NULL || strlen(port) == 0) {
|
||||
error_setg(errp, "chardev: udp: remote port not specified");
|
||||
return;
|
||||
}
|
||||
if (localport == NULL || strlen(localport) == 0) {
|
||||
localport = "0";
|
||||
} else {
|
||||
has_local = true;
|
||||
}
|
||||
if (localaddr == NULL || strlen(localaddr) == 0) {
|
||||
localaddr = "";
|
||||
} else {
|
||||
has_local = true;
|
||||
}
|
||||
|
||||
udp = backend->u.udp.data = g_new0(ChardevUdp, 1);
|
||||
qemu_chr_parse_common(opts, qapi_ChardevUdp_base(udp));
|
||||
|
||||
addr = g_new0(SocketAddress, 1);
|
||||
addr->type = SOCKET_ADDRESS_KIND_INET;
|
||||
addr->u.inet.data = g_new(InetSocketAddress, 1);
|
||||
*addr->u.inet.data = (InetSocketAddress) {
|
||||
.host = g_strdup(host),
|
||||
.port = g_strdup(port),
|
||||
.has_ipv4 = qemu_opt_get(opts, "ipv4"),
|
||||
.ipv4 = qemu_opt_get_bool(opts, "ipv4", 0),
|
||||
.has_ipv6 = qemu_opt_get(opts, "ipv6"),
|
||||
.ipv6 = qemu_opt_get_bool(opts, "ipv6", 0),
|
||||
};
|
||||
udp->remote = addr;
|
||||
|
||||
if (has_local) {
|
||||
udp->has_local = true;
|
||||
addr = g_new0(SocketAddress, 1);
|
||||
addr->type = SOCKET_ADDRESS_KIND_INET;
|
||||
addr->u.inet.data = g_new(InetSocketAddress, 1);
|
||||
*addr->u.inet.data = (InetSocketAddress) {
|
||||
.host = g_strdup(localaddr),
|
||||
.port = g_strdup(localport),
|
||||
};
|
||||
udp->local = addr;
|
||||
}
|
||||
}
|
||||
|
||||
static const ChardevClass *char_get_class(const char *driver, Error **errp)
|
||||
{
|
||||
ObjectClass *oc;
|
||||
@ -2610,50 +2457,6 @@ static const TypeInfo char_serial_type_info = {
|
||||
};
|
||||
#endif
|
||||
|
||||
static void qmp_chardev_open_udp(Chardev *chr,
|
||||
ChardevBackend *backend,
|
||||
bool *be_opened,
|
||||
Error **errp)
|
||||
{
|
||||
ChardevUdp *udp = backend->u.udp.data;
|
||||
QIOChannelSocket *sioc = qio_channel_socket_new();
|
||||
char *name;
|
||||
UdpChardev *s = UDP_CHARDEV(chr);
|
||||
|
||||
if (qio_channel_socket_dgram_sync(sioc,
|
||||
udp->local, udp->remote,
|
||||
errp) < 0) {
|
||||
object_unref(OBJECT(sioc));
|
||||
return;
|
||||
}
|
||||
|
||||
name = g_strdup_printf("chardev-udp-%s", chr->label);
|
||||
qio_channel_set_name(QIO_CHANNEL(sioc), name);
|
||||
g_free(name);
|
||||
|
||||
s->ioc = QIO_CHANNEL(sioc);
|
||||
/* be isn't opened until we get a connection */
|
||||
*be_opened = false;
|
||||
}
|
||||
|
||||
static void char_udp_class_init(ObjectClass *oc, void *data)
|
||||
{
|
||||
ChardevClass *cc = CHARDEV_CLASS(oc);
|
||||
|
||||
cc->parse = qemu_chr_parse_udp;
|
||||
cc->open = qmp_chardev_open_udp;
|
||||
cc->chr_write = udp_chr_write;
|
||||
cc->chr_update_read_handler = udp_chr_update_read_handler;
|
||||
}
|
||||
|
||||
static const TypeInfo char_udp_type_info = {
|
||||
.name = TYPE_CHARDEV_UDP,
|
||||
.parent = TYPE_CHARDEV,
|
||||
.instance_size = sizeof(UdpChardev),
|
||||
.instance_finalize = char_udp_finalize,
|
||||
.class_init = char_udp_class_init,
|
||||
};
|
||||
|
||||
bool qemu_chr_has_feature(Chardev *chr,
|
||||
ChardevFeature feature)
|
||||
{
|
||||
@ -2755,7 +2558,6 @@ void qemu_chr_cleanup(void)
|
||||
static void register_types(void)
|
||||
{
|
||||
type_register_static(&char_type_info);
|
||||
type_register_static(&char_udp_type_info);
|
||||
type_register_static(&char_file_type_info);
|
||||
type_register_static(&char_stdio_type_info);
|
||||
#ifdef HAVE_CHARDEV_SERIAL
|
||||
|
||||
Loading…
Reference in New Issue
Block a user