aboutsummaryrefslogtreecommitdiff
path: root/chardev/char.c
diff options
context:
space:
mode:
authorMarc-André Lureau <marcandre.lureau@redhat.com>2016-12-12 18:41:00 +0300
committerMarc-André Lureau <marcandre.lureau@redhat.com>2017-01-31 23:31:21 +0400
commitd24ca4b8c58e515abacacaeeb588b141cd8fad8b (patch)
tree985d4fbb5c2ca77eb32934f5f147e4c17bebb3e9 /chardev/char.c
parent0e58f1777794424c64711ab5f96c5887fc712d93 (diff)
char: move socket chardev to its own file
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'chardev/char.c')
-rw-r--r--chardev/char.c979
1 files changed, 1 insertions, 978 deletions
diff --git a/chardev/char.c b/chardev/char.c
index 8393bb0294..73b6663aa4 100644
--- a/chardev/char.c
+++ b/chardev/char.c
@@ -93,71 +93,6 @@
#include "char-win-stdio.h"
#endif
-#define TCP_MAX_FDS 16
-
-/***********************************************************/
-/* Socket address helpers */
-
-static char *SocketAddress_to_str(const char *prefix, SocketAddress *addr,
- bool is_listen, bool is_telnet)
-{
- switch (addr->type) {
- case SOCKET_ADDRESS_KIND_INET:
- return g_strdup_printf("%s%s:%s:%s%s", prefix,
- is_telnet ? "telnet" : "tcp",
- addr->u.inet.data->host,
- addr->u.inet.data->port,
- is_listen ? ",server" : "");
- break;
- case SOCKET_ADDRESS_KIND_UNIX:
- return g_strdup_printf("%sunix:%s%s", prefix,
- addr->u.q_unix.data->path,
- is_listen ? ",server" : "");
- break;
- case SOCKET_ADDRESS_KIND_FD:
- return g_strdup_printf("%sfd:%s%s", prefix, addr->u.fd.data->str,
- is_listen ? ",server" : "");
- break;
- default:
- abort();
- }
-}
-
-static char *sockaddr_to_str(struct sockaddr_storage *ss, socklen_t ss_len,
- struct sockaddr_storage *ps, socklen_t ps_len,
- bool is_listen, bool is_telnet)
-{
- char shost[NI_MAXHOST], sserv[NI_MAXSERV];
- char phost[NI_MAXHOST], pserv[NI_MAXSERV];
- const char *left = "", *right = "";
-
- switch (ss->ss_family) {
-#ifndef _WIN32
- case AF_UNIX:
- return g_strdup_printf("unix:%s%s",
- ((struct sockaddr_un *)(ss))->sun_path,
- is_listen ? ",server" : "");
-#endif
- case AF_INET6:
- left = "[";
- right = "]";
- /* fall through */
- case AF_INET:
- getnameinfo((struct sockaddr *) ss, ss_len, shost, sizeof(shost),
- sserv, sizeof(sserv), NI_NUMERICHOST | NI_NUMERICSERV);
- getnameinfo((struct sockaddr *) ps, ps_len, phost, sizeof(phost),
- pserv, sizeof(pserv), NI_NUMERICHOST | NI_NUMERICSERV);
- return g_strdup_printf("%s:%s%s%s:%s%s <-> %s%s%s:%s",
- is_telnet ? "telnet" : "tcp",
- left, shost, right, sserv,
- is_listen ? ",server" : "",
- left, phost, right, pserv);
-
- default:
- return g_strdup_printf("unknown");
- }
-}
-
/***********************************************************/
/* character device */
@@ -1672,640 +1607,7 @@ static void char_udp_finalize(Object *obj)
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
}
-/***********************************************************/
-/* TCP Net console */
-
-typedef struct {
- Chardev parent;
- QIOChannel *ioc; /* Client I/O channel */
- QIOChannelSocket *sioc; /* Client master channel */
- QIOChannelSocket *listen_ioc;
- guint listen_tag;
- QCryptoTLSCreds *tls_creds;
- int connected;
- int max_size;
- int do_telnetopt;
- int do_nodelay;
- int is_unix;
- int *read_msgfds;
- size_t read_msgfds_num;
- int *write_msgfds;
- size_t write_msgfds_num;
-
- SocketAddress *addr;
- bool is_listen;
- bool is_telnet;
-
- guint reconnect_timer;
- int64_t reconnect_time;
- bool connect_err_reported;
-} SocketChardev;
-
-#define SOCKET_CHARDEV(obj) \
- OBJECT_CHECK(SocketChardev, (obj), TYPE_CHARDEV_SOCKET)
-
-static gboolean socket_reconnect_timeout(gpointer opaque);
-
-static void qemu_chr_socket_restart_timer(Chardev *chr)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- char *name;
-
- assert(s->connected == 0);
- s->reconnect_timer = g_timeout_add_seconds(s->reconnect_time,
- socket_reconnect_timeout, chr);
- name = g_strdup_printf("chardev-socket-reconnect-%s", chr->label);
- g_source_set_name_by_id(s->reconnect_timer, name);
- g_free(name);
-}
-
-static void check_report_connect_error(Chardev *chr,
- Error *err)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
-
- if (!s->connect_err_reported) {
- error_report("Unable to connect character device %s: %s",
- chr->label, error_get_pretty(err));
- s->connect_err_reported = true;
- }
- qemu_chr_socket_restart_timer(chr);
-}
-
-static gboolean tcp_chr_accept(QIOChannel *chan,
- GIOCondition cond,
- void *opaque);
-
-/* Called with chr_write_lock held. */
-static int tcp_chr_write(Chardev *chr, const uint8_t *buf, int len)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
-
- if (s->connected) {
- int ret = io_channel_send_full(s->ioc, buf, len,
- s->write_msgfds,
- s->write_msgfds_num);
-
- /* free the written msgfds, no matter what */
- if (s->write_msgfds_num) {
- g_free(s->write_msgfds);
- s->write_msgfds = 0;
- s->write_msgfds_num = 0;
- }
-
- return ret;
- } else {
- /* XXX: indicate an error ? */
- return len;
- }
-}
-
-static int tcp_chr_read_poll(void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- SocketChardev *s = SOCKET_CHARDEV(opaque);
- if (!s->connected)
- return 0;
- s->max_size = qemu_chr_be_can_write(chr);
- return s->max_size;
-}
-
-#define IAC 255
-#define IAC_BREAK 243
-static void tcp_chr_process_IAC_bytes(Chardev *chr,
- SocketChardev *s,
- uint8_t *buf, int *size)
-{
- /* Handle any telnet client's basic IAC options to satisfy char by
- * char mode with no echo. All IAC options will be removed from
- * the buf and the do_telnetopt variable will be used to track the
- * state of the width of the IAC information.
- *
- * IAC commands come in sets of 3 bytes with the exception of the
- * "IAC BREAK" command and the double IAC.
- */
-
- int i;
- int j = 0;
-
- for (i = 0; i < *size; i++) {
- if (s->do_telnetopt > 1) {
- if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
- /* Double IAC means send an IAC */
- if (j != i)
- buf[j] = buf[i];
- j++;
- s->do_telnetopt = 1;
- } else {
- if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
- /* Handle IAC break commands by sending a serial break */
- qemu_chr_be_event(chr, CHR_EVENT_BREAK);
- s->do_telnetopt++;
- }
- s->do_telnetopt++;
- }
- if (s->do_telnetopt >= 4) {
- s->do_telnetopt = 1;
- }
- } else {
- if ((unsigned char)buf[i] == IAC) {
- s->do_telnetopt = 2;
- } else {
- if (j != i)
- buf[j] = buf[i];
- j++;
- }
- }
- }
- *size = j;
-}
-
-static int tcp_get_msgfds(Chardev *chr, int *fds, int num)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
-
- int to_copy = (s->read_msgfds_num < num) ? s->read_msgfds_num : num;
-
- assert(num <= TCP_MAX_FDS);
-
- if (to_copy) {
- int i;
-
- memcpy(fds, s->read_msgfds, to_copy * sizeof(int));
-
- /* Close unused fds */
- for (i = to_copy; i < s->read_msgfds_num; i++) {
- close(s->read_msgfds[i]);
- }
-
- g_free(s->read_msgfds);
- s->read_msgfds = 0;
- s->read_msgfds_num = 0;
- }
-
- return to_copy;
-}
-
-static int tcp_set_msgfds(Chardev *chr, int *fds, int num)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
-
- /* clear old pending fd array */
- g_free(s->write_msgfds);
- s->write_msgfds = NULL;
- s->write_msgfds_num = 0;
-
- if (!s->connected ||
- !qio_channel_has_feature(s->ioc,
- QIO_CHANNEL_FEATURE_FD_PASS)) {
- return -1;
- }
-
- if (num) {
- s->write_msgfds = g_new(int, num);
- memcpy(s->write_msgfds, fds, num * sizeof(int));
- }
-
- s->write_msgfds_num = num;
-
- return 0;
-}
-
-static ssize_t tcp_chr_recv(Chardev *chr, char *buf, size_t len)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- struct iovec iov = { .iov_base = buf, .iov_len = len };
- int ret;
- size_t i;
- int *msgfds = NULL;
- size_t msgfds_num = 0;
-
- if (qio_channel_has_feature(s->ioc, QIO_CHANNEL_FEATURE_FD_PASS)) {
- ret = qio_channel_readv_full(s->ioc, &iov, 1,
- &msgfds, &msgfds_num,
- NULL);
- } else {
- ret = qio_channel_readv_full(s->ioc, &iov, 1,
- NULL, NULL,
- NULL);
- }
-
- if (ret == QIO_CHANNEL_ERR_BLOCK) {
- errno = EAGAIN;
- ret = -1;
- } else if (ret == -1) {
- errno = EIO;
- }
-
- if (msgfds_num) {
- /* close and clean read_msgfds */
- for (i = 0; i < s->read_msgfds_num; i++) {
- close(s->read_msgfds[i]);
- }
-
- if (s->read_msgfds_num) {
- g_free(s->read_msgfds);
- }
-
- s->read_msgfds = msgfds;
- s->read_msgfds_num = msgfds_num;
- }
-
- for (i = 0; i < s->read_msgfds_num; i++) {
- int fd = s->read_msgfds[i];
- if (fd < 0) {
- continue;
- }
-
- /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */
- qemu_set_block(fd);
-
-#ifndef MSG_CMSG_CLOEXEC
- qemu_set_cloexec(fd);
-#endif
- }
-
- return ret;
-}
-
-static GSource *tcp_chr_add_watch(Chardev *chr, GIOCondition cond)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- return qio_channel_create_watch(s->ioc, cond);
-}
-
-static void tcp_chr_free_connection(Chardev *chr)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- int i;
-
- if (!s->connected) {
- return;
- }
-
- if (s->read_msgfds_num) {
- for (i = 0; i < s->read_msgfds_num; i++) {
- close(s->read_msgfds[i]);
- }
- g_free(s->read_msgfds);
- s->read_msgfds = NULL;
- s->read_msgfds_num = 0;
- }
-
- tcp_set_msgfds(chr, NULL, 0);
- remove_fd_in_watch(chr);
- object_unref(OBJECT(s->sioc));
- s->sioc = NULL;
- object_unref(OBJECT(s->ioc));
- s->ioc = NULL;
- g_free(chr->filename);
- chr->filename = NULL;
- s->connected = 0;
-}
-
-static void tcp_chr_disconnect(Chardev *chr)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
-
- if (!s->connected) {
- return;
- }
-
- tcp_chr_free_connection(chr);
-
- if (s->listen_ioc) {
- s->listen_tag = qio_channel_add_watch(
- QIO_CHANNEL(s->listen_ioc), G_IO_IN, tcp_chr_accept, chr, NULL);
- }
- chr->filename = SocketAddress_to_str("disconnected:", s->addr,
- s->is_listen, s->is_telnet);
- qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
- if (s->reconnect_time) {
- qemu_chr_socket_restart_timer(chr);
- }
-}
-
-static gboolean tcp_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- SocketChardev *s = SOCKET_CHARDEV(opaque);
- uint8_t buf[CHR_READ_BUF_LEN];
- int len, size;
-
- if (!s->connected || s->max_size <= 0) {
- return TRUE;
- }
- len = sizeof(buf);
- if (len > s->max_size)
- len = s->max_size;
- size = tcp_chr_recv(chr, (void *)buf, len);
- if (size == 0 || size == -1) {
- /* connection closed */
- tcp_chr_disconnect(chr);
- } else if (size > 0) {
- if (s->do_telnetopt)
- tcp_chr_process_IAC_bytes(chr, s, buf, &size);
- if (size > 0)
- qemu_chr_be_write(chr, buf, size);
- }
-
- return TRUE;
-}
-
-static int tcp_chr_sync_read(Chardev *chr, const uint8_t *buf, int len)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- int size;
-
- if (!s->connected) {
- return 0;
- }
-
- size = tcp_chr_recv(chr, (void *) buf, len);
- if (size == 0) {
- /* connection closed */
- tcp_chr_disconnect(chr);
- }
-
- return size;
-}
-
-static void tcp_chr_connect(void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- SocketChardev *s = SOCKET_CHARDEV(opaque);
-
- g_free(chr->filename);
- chr->filename = sockaddr_to_str(
- &s->sioc->localAddr, s->sioc->localAddrLen,
- &s->sioc->remoteAddr, s->sioc->remoteAddrLen,
- s->is_listen, s->is_telnet);
-
- s->connected = 1;
- if (s->ioc) {
- chr->fd_in_tag = io_add_watch_poll(chr, s->ioc,
- tcp_chr_read_poll,
- tcp_chr_read,
- chr, NULL);
- }
- qemu_chr_be_generic_open(chr);
-}
-
-static void tcp_chr_update_read_handler(Chardev *chr,
- GMainContext *context)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
-
- if (!s->connected) {
- return;
- }
-
- remove_fd_in_watch(chr);
- if (s->ioc) {
- chr->fd_in_tag = io_add_watch_poll(chr, s->ioc,
- tcp_chr_read_poll,
- tcp_chr_read, chr,
- context);
- }
-}
-
-typedef struct {
- Chardev *chr;
- char buf[12];
- size_t buflen;
-} TCPChardevTelnetInit;
-
-static gboolean tcp_chr_telnet_init_io(QIOChannel *ioc,
- GIOCondition cond G_GNUC_UNUSED,
- gpointer user_data)
-{
- TCPChardevTelnetInit *init = user_data;
- ssize_t ret;
-
- ret = qio_channel_write(ioc, init->buf, init->buflen, NULL);
- if (ret < 0) {
- if (ret == QIO_CHANNEL_ERR_BLOCK) {
- ret = 0;
- } else {
- tcp_chr_disconnect(init->chr);
- return FALSE;
- }
- }
- init->buflen -= ret;
-
- if (init->buflen == 0) {
- tcp_chr_connect(init->chr);
- return FALSE;
- }
-
- memmove(init->buf, init->buf + ret, init->buflen);
-
- return TRUE;
-}
-
-static void tcp_chr_telnet_init(Chardev *chr)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- TCPChardevTelnetInit *init = g_new0(TCPChardevTelnetInit, 1);
- size_t n = 0;
-
- init->chr = chr;
- init->buflen = 12;
-
-#define IACSET(x, a, b, c) \
- do { \
- x[n++] = a; \
- x[n++] = b; \
- x[n++] = c; \
- } while (0)
-
- /* Prep the telnet negotion to put telnet in binary,
- * no echo, single char mode */
- IACSET(init->buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
- IACSET(init->buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
- IACSET(init->buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
- IACSET(init->buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
-
-#undef IACSET
-
- qio_channel_add_watch(
- s->ioc, G_IO_OUT,
- tcp_chr_telnet_init_io,
- init, NULL);
-}
-
-
-static void tcp_chr_tls_handshake(QIOTask *task,
- gpointer user_data)
-{
- Chardev *chr = user_data;
- SocketChardev *s = user_data;
-
- if (qio_task_propagate_error(task, NULL)) {
- tcp_chr_disconnect(chr);
- } else {
- if (s->do_telnetopt) {
- tcp_chr_telnet_init(chr);
- } else {
- tcp_chr_connect(chr);
- }
- }
-}
-
-
-static void tcp_chr_tls_init(Chardev *chr)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- QIOChannelTLS *tioc;
- Error *err = NULL;
- gchar *name;
-
- if (s->is_listen) {
- tioc = qio_channel_tls_new_server(
- s->ioc, s->tls_creds,
- NULL, /* XXX Use an ACL */
- &err);
- } else {
- tioc = qio_channel_tls_new_client(
- s->ioc, s->tls_creds,
- s->addr->u.inet.data->host,
- &err);
- }
- if (tioc == NULL) {
- error_free(err);
- tcp_chr_disconnect(chr);
- return;
- }
- name = g_strdup_printf("chardev-tls-%s-%s",
- s->is_listen ? "server" : "client",
- chr->label);
- qio_channel_set_name(QIO_CHANNEL(tioc), name);
- g_free(name);
- object_unref(OBJECT(s->ioc));
- s->ioc = QIO_CHANNEL(tioc);
-
- qio_channel_tls_handshake(tioc,
- tcp_chr_tls_handshake,
- chr,
- NULL);
-}
-
-
-static void tcp_chr_set_client_ioc_name(Chardev *chr,
- QIOChannelSocket *sioc)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- char *name;
- name = g_strdup_printf("chardev-tcp-%s-%s",
- s->is_listen ? "server" : "client",
- chr->label);
- qio_channel_set_name(QIO_CHANNEL(sioc), name);
- g_free(name);
-
-}
-
-static int tcp_chr_new_client(Chardev *chr, QIOChannelSocket *sioc)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
-
- if (s->ioc != NULL) {
- return -1;
- }
-
- s->ioc = QIO_CHANNEL(sioc);
- object_ref(OBJECT(sioc));
- s->sioc = sioc;
- object_ref(OBJECT(sioc));
-
- qio_channel_set_blocking(s->ioc, false, NULL);
-
- if (s->do_nodelay) {
- qio_channel_set_delay(s->ioc, false);
- }
- if (s->listen_tag) {
- g_source_remove(s->listen_tag);
- s->listen_tag = 0;
- }
-
- if (s->tls_creds) {
- tcp_chr_tls_init(chr);
- } else {
- if (s->do_telnetopt) {
- tcp_chr_telnet_init(chr);
- } else {
- tcp_chr_connect(chr);
- }
- }
-
- return 0;
-}
-
-
-static int tcp_chr_add_client(Chardev *chr, int fd)
-{
- int ret;
- QIOChannelSocket *sioc;
-
- sioc = qio_channel_socket_new_fd(fd, NULL);
- if (!sioc) {
- return -1;
- }
- tcp_chr_set_client_ioc_name(chr, sioc);
- ret = tcp_chr_new_client(chr, sioc);
- object_unref(OBJECT(sioc));
- return ret;
-}
-
-static gboolean tcp_chr_accept(QIOChannel *channel,
- GIOCondition cond,
- void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- QIOChannelSocket *sioc;
-
- sioc = qio_channel_socket_accept(QIO_CHANNEL_SOCKET(channel),
- NULL);
- if (!sioc) {
- return TRUE;
- }
-
- tcp_chr_new_client(chr, sioc);
-
- object_unref(OBJECT(sioc));
-
- return TRUE;
-}
-
-static int tcp_chr_wait_connected(Chardev *chr, Error **errp)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- QIOChannelSocket *sioc;
-
- /* It can't wait on s->connected, since it is set asynchronously
- * in TLS and telnet cases, only wait for an accepted socket */
- while (!s->ioc) {
- if (s->is_listen) {
- error_report("QEMU waiting for connection on: %s",
- chr->filename);
- qio_channel_set_blocking(QIO_CHANNEL(s->listen_ioc), true, NULL);
- tcp_chr_accept(QIO_CHANNEL(s->listen_ioc), G_IO_IN, chr);
- qio_channel_set_blocking(QIO_CHANNEL(s->listen_ioc), false, NULL);
- } else {
- sioc = qio_channel_socket_new();
- tcp_chr_set_client_ioc_name(chr, sioc);
- if (qio_channel_socket_connect_sync(sioc, s->addr, errp) < 0) {
- object_unref(OBJECT(sioc));
- return -1;
- }
- tcp_chr_new_client(chr, sioc);
- object_unref(OBJECT(sioc));
- }
- }
-
- return 0;
-}
-
-static int qemu_chr_wait_connected(Chardev *chr, Error **errp)
+int qemu_chr_wait_connected(Chardev *chr, Error **errp)
{
ChardevClass *cc = CHARDEV_GET_CLASS(chr);
@@ -2326,54 +1628,6 @@ int qemu_chr_fe_wait_connected(CharBackend *be, Error **errp)
return qemu_chr_wait_connected(be->chr, errp);
}
-static void char_socket_finalize(Object *obj)
-{
- Chardev *chr = CHARDEV(obj);
- SocketChardev *s = SOCKET_CHARDEV(obj);
-
- tcp_chr_free_connection(chr);
-
- if (s->reconnect_timer) {
- g_source_remove(s->reconnect_timer);
- s->reconnect_timer = 0;
- }
- qapi_free_SocketAddress(s->addr);
- if (s->listen_tag) {
- g_source_remove(s->listen_tag);
- s->listen_tag = 0;
- }
- if (s->listen_ioc) {
- object_unref(OBJECT(s->listen_ioc));
- }
- if (s->tls_creds) {
- object_unref(OBJECT(s->tls_creds));
- }
-
- qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
-}
-
-
-static void qemu_chr_socket_connected(QIOTask *task, void *opaque)
-{
- QIOChannelSocket *sioc = QIO_CHANNEL_SOCKET(qio_task_get_source(task));
- Chardev *chr = CHARDEV(opaque);
- SocketChardev *s = SOCKET_CHARDEV(chr);
- Error *err = NULL;
-
- if (qio_task_propagate_error(task, &err)) {
- check_report_connect_error(chr, err);
- error_free(err);
- goto cleanup;
- }
-
- s->connect_err_reported = false;
- tcp_chr_new_client(chr, sioc);
-
- cleanup:
- object_unref(OBJECT(sioc));
-}
-
-
QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
{
char host[65], port[33], width[8], height[8];
@@ -2651,76 +1905,6 @@ static const TypeInfo char_pipe_type_info = {
.class_init = char_pipe_class_init,
};
-static void qemu_chr_parse_socket(QemuOpts *opts, ChardevBackend *backend,
- Error **errp)
-{
- bool is_listen = qemu_opt_get_bool(opts, "server", false);
- bool is_waitconnect = is_listen && qemu_opt_get_bool(opts, "wait", true);
- bool is_telnet = qemu_opt_get_bool(opts, "telnet", false);
- bool do_nodelay = !qemu_opt_get_bool(opts, "delay", true);
- int64_t reconnect = qemu_opt_get_number(opts, "reconnect", 0);
- const char *path = qemu_opt_get(opts, "path");
- const char *host = qemu_opt_get(opts, "host");
- const char *port = qemu_opt_get(opts, "port");
- const char *tls_creds = qemu_opt_get(opts, "tls-creds");
- SocketAddress *addr;
- ChardevSocket *sock;
-
- backend->type = CHARDEV_BACKEND_KIND_SOCKET;
- if (!path) {
- if (!host) {
- error_setg(errp, "chardev: socket: no host given");
- return;
- }
- if (!port) {
- error_setg(errp, "chardev: socket: no port given");
- return;
- }
- } else {
- if (tls_creds) {
- error_setg(errp, "TLS can only be used over TCP socket");
- return;
- }
- }
-
- sock = backend->u.socket.data = g_new0(ChardevSocket, 1);
- qemu_chr_parse_common(opts, qapi_ChardevSocket_base(sock));
-
- sock->has_nodelay = true;
- sock->nodelay = do_nodelay;
- sock->has_server = true;
- sock->server = is_listen;
- sock->has_telnet = true;
- sock->telnet = is_telnet;
- sock->has_wait = true;
- sock->wait = is_waitconnect;
- sock->has_reconnect = true;
- sock->reconnect = reconnect;
- sock->tls_creds = g_strdup(tls_creds);
-
- addr = g_new0(SocketAddress, 1);
- if (path) {
- UnixSocketAddress *q_unix;
- addr->type = SOCKET_ADDRESS_KIND_UNIX;
- q_unix = addr->u.q_unix.data = g_new0(UnixSocketAddress, 1);
- q_unix->path = g_strdup(path);
- } else {
- 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_to = qemu_opt_get(opts, "to"),
- .to = qemu_opt_get_number(opts, "to", 0),
- .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),
- };
- }
- sock->addr = addr;
-}
-
static void qemu_chr_parse_udp(QemuOpts *opts, ChardevBackend *backend,
Error **errp)
{
@@ -3426,166 +2610,6 @@ static const TypeInfo char_serial_type_info = {
};
#endif
-static gboolean socket_reconnect_timeout(gpointer opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- SocketChardev *s = SOCKET_CHARDEV(opaque);
- QIOChannelSocket *sioc;
-
- s->reconnect_timer = 0;
-
- if (chr->be_open) {
- return false;
- }
-
- sioc = qio_channel_socket_new();
- tcp_chr_set_client_ioc_name(chr, sioc);
- qio_channel_socket_connect_async(sioc, s->addr,
- qemu_chr_socket_connected,
- chr, NULL);
-
- return false;
-}
-
-static void qmp_chardev_open_socket(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- ChardevSocket *sock = backend->u.socket.data;
- SocketAddress *addr = sock->addr;
- bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
- bool is_listen = sock->has_server ? sock->server : true;
- bool is_telnet = sock->has_telnet ? sock->telnet : false;
- bool is_waitconnect = sock->has_wait ? sock->wait : false;
- int64_t reconnect = sock->has_reconnect ? sock->reconnect : 0;
- QIOChannelSocket *sioc = NULL;
-
- s->is_unix = addr->type == SOCKET_ADDRESS_KIND_UNIX;
- s->is_listen = is_listen;
- s->is_telnet = is_telnet;
- s->do_nodelay = do_nodelay;
- if (sock->tls_creds) {
- Object *creds;
- creds = object_resolve_path_component(
- object_get_objects_root(), sock->tls_creds);
- if (!creds) {
- error_setg(errp, "No TLS credentials with id '%s'",
- sock->tls_creds);
- goto error;
- }
- s->tls_creds = (QCryptoTLSCreds *)
- object_dynamic_cast(creds,
- TYPE_QCRYPTO_TLS_CREDS);
- if (!s->tls_creds) {
- error_setg(errp, "Object with id '%s' is not TLS credentials",
- sock->tls_creds);
- goto error;
- }
- object_ref(OBJECT(s->tls_creds));
- if (is_listen) {
- if (s->tls_creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
- error_setg(errp, "%s",
- "Expected TLS credentials for server endpoint");
- goto error;
- }
- } else {
- if (s->tls_creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT) {
- error_setg(errp, "%s",
- "Expected TLS credentials for client endpoint");
- goto error;
- }
- }
- }
-
- s->addr = QAPI_CLONE(SocketAddress, sock->addr);
-
- qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_RECONNECTABLE);
- if (s->is_unix) {
- qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_FD_PASS);
- }
-
- /* be isn't opened until we get a connection */
- *be_opened = false;
-
- chr->filename = SocketAddress_to_str("disconnected:",
- addr, is_listen, is_telnet);
-
- if (is_listen) {
- if (is_telnet) {
- s->do_telnetopt = 1;
- }
- } else if (reconnect > 0) {
- s->reconnect_time = reconnect;
- }
-
- if (s->reconnect_time) {
- sioc = qio_channel_socket_new();
- tcp_chr_set_client_ioc_name(chr, sioc);
- qio_channel_socket_connect_async(sioc, s->addr,
- qemu_chr_socket_connected,
- chr, NULL);
- } else {
- if (s->is_listen) {
- char *name;
- sioc = qio_channel_socket_new();
-
- name = g_strdup_printf("chardev-tcp-listener-%s", chr->label);
- qio_channel_set_name(QIO_CHANNEL(sioc), name);
- g_free(name);
-
- if (qio_channel_socket_listen_sync(sioc, s->addr, errp) < 0) {
- goto error;
- }
- s->listen_ioc = sioc;
- if (is_waitconnect &&
- qemu_chr_wait_connected(chr, errp) < 0) {
- return;
- }
- if (!s->ioc) {
- s->listen_tag = qio_channel_add_watch(
- QIO_CHANNEL(s->listen_ioc), G_IO_IN,
- tcp_chr_accept, chr, NULL);
- }
- } else if (qemu_chr_wait_connected(chr, errp) < 0) {
- goto error;
- }
- }
-
- return;
-
-error:
- if (sioc) {
- object_unref(OBJECT(sioc));
- }
-}
-
-static void char_socket_class_init(ObjectClass *oc, void *data)
-{
- ChardevClass *cc = CHARDEV_CLASS(oc);
-
- cc->parse = qemu_chr_parse_socket;
- cc->open = qmp_chardev_open_socket;
- cc->chr_wait_connected = tcp_chr_wait_connected;
- cc->chr_write = tcp_chr_write;
- cc->chr_sync_read = tcp_chr_sync_read;
- cc->chr_disconnect = tcp_chr_disconnect;
- cc->get_msgfds = tcp_get_msgfds;
- cc->set_msgfds = tcp_set_msgfds;
- cc->chr_add_client = tcp_chr_add_client;
- cc->chr_add_watch = tcp_chr_add_watch;
- cc->chr_update_read_handler = tcp_chr_update_read_handler;
-}
-
-static const TypeInfo char_socket_type_info = {
- .name = TYPE_CHARDEV_SOCKET,
- .parent = TYPE_CHARDEV,
- .instance_size = sizeof(SocketChardev),
- .instance_finalize = char_socket_finalize,
- .class_init = char_socket_class_init,
-};
-
static void qmp_chardev_open_udp(Chardev *chr,
ChardevBackend *backend,
bool *be_opened,
@@ -3731,7 +2755,6 @@ void qemu_chr_cleanup(void)
static void register_types(void)
{
type_register_static(&char_type_info);
- type_register_static(&char_socket_type_info);
type_register_static(&char_udp_type_info);
type_register_static(&char_file_type_info);
type_register_static(&char_stdio_type_info);