int socket_listen(SocketAddress *addr, Error **errp)
{
int fd;
switch (addr->type) {
case SOCKET_ADDRESS_KIND_INET:
fd = inet_listen_saddr(addr->u.inet.data, 0, false, errp);
break;
case SOCKET_ADDRESS_KIND_UNIX:
fd = unix_listen_saddr(addr->u.q_unix.data, false, errp);
break;
case SOCKET_ADDRESS_KIND_FD:
fd = monitor_get_fd(cur_mon, addr->u.fd.data->str, errp);
break;
case SOCKET_ADDRESS_KIND_VSOCK:
fd = vsock_listen_saddr(addr->u.vsock.data, errp);
break;
default:
abort();
}
return fd;
}
int socket_listen(SocketAddress *addr, Error **errp)
{
int fd;
switch (addr->type) {
case SOCKET_ADDRESS_TYPE_INET:
fd = inet_listen_saddr(&addr->u.inet, 0, errp);
break;
case SOCKET_ADDRESS_TYPE_UNIX:
fd = unix_listen_saddr(&addr->u.q_unix, errp);
break;
case SOCKET_ADDRESS_TYPE_FD:
fd = monitor_get_fd(cur_mon, addr->u.fd.str, errp);
break;
case SOCKET_ADDRESS_TYPE_VSOCK:
fd = vsock_listen_saddr(&addr->u.vsock, errp);
break;
default:
abort();
}
return fd;
}
int socket_listen(SocketAddress *addr, Error **errp)
{
QemuOpts *opts;
int fd;
opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort);
switch (addr->kind) {
case SOCKET_ADDRESS_KIND_INET:
inet_addr_to_opts(opts, addr->inet);
fd = inet_listen_opts(opts, 0, errp);
break;
case SOCKET_ADDRESS_KIND_UNIX:
qemu_opt_set(opts, "path", addr->q_unix->path, &error_abort);
fd = unix_listen_opts(opts, errp);
break;
case SOCKET_ADDRESS_KIND_FD:
fd = monitor_get_fd(cur_mon, addr->fd->str, errp);
break;
default:
abort();
}
qemu_opts_del(opts);
return fd;
}
int socket_connect(SocketAddress *addr, Error **errp,
NonBlockingConnectHandler *callback, void *opaque)
{
int fd;
switch (addr->type) {
case SOCKET_ADDRESS_KIND_INET:
fd = inet_connect_saddr(addr->u.inet.data, errp, callback, opaque);
break;
case SOCKET_ADDRESS_KIND_UNIX:
fd = unix_connect_saddr(addr->u.q_unix.data, errp, callback, opaque);
break;
case SOCKET_ADDRESS_KIND_FD:
fd = monitor_get_fd(cur_mon, addr->u.fd.data->str, errp);
if (fd >= 0 && callback) {
qemu_set_nonblock(fd);
callback(fd, NULL, opaque);
}
break;
case SOCKET_ADDRESS_KIND_VSOCK:
fd = vsock_connect_saddr(addr->u.vsock.data, errp, callback, opaque);
break;
default:
abort();
}
return fd;
}
int socket_connect(SocketAddress *addr, Error **errp,
NonBlockingConnectHandler *callback, void *opaque)
{
QemuOpts *opts;
int fd;
opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort);
switch (addr->kind) {
case SOCKET_ADDRESS_KIND_INET:
inet_addr_to_opts(opts, addr->inet);
fd = inet_connect_opts(opts, errp, callback, opaque);
break;
case SOCKET_ADDRESS_KIND_UNIX:
qemu_opt_set(opts, "path", addr->q_unix->path, &error_abort);
fd = unix_connect_opts(opts, errp, callback, opaque);
break;
case SOCKET_ADDRESS_KIND_FD:
fd = monitor_get_fd(cur_mon, addr->fd->str, errp);
if (fd >= 0 && callback) {
qemu_set_nonblock(fd);
callback(fd, NULL, opaque);
}
break;
default:
abort();
}
qemu_opts_del(opts);
return fd;
}
int fd_start_outgoing_migration(MigrationState *s, const char *fdname)
{
s->fd = monitor_get_fd(cur_mon, fdname, NULL);
if (s->fd == -1) {
DPRINTF("fd_migration: invalid file descriptor identifier\n");
goto err_after_get_fd;
}
if (fcntl(s->fd, F_SETFL, O_NONBLOCK) == -1) {
DPRINTF("Unable to set nonblocking mode on file descriptor\n");
goto err_after_open;
}
s->get_error = fd_errno;
s->write = fd_write;
s->close = fd_close;
migrate_fd_connect(s);
return 0;
err_after_open:
close(s->fd);
err_after_get_fd:
return -1;
}
void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **errp)
{
s->fd = monitor_get_fd(cur_mon, fdname, errp);
if (s->fd == -1) {
return;
}
fcntl(s->fd, F_SETFL, O_NONBLOCK);
s->get_error = fd_errno;
s->write = fd_write;
s->close = fd_close;
migrate_fd_connect(s);
}
MigrationState *fd_start_outgoing_migration(Monitor *mon,
const char *fdname,
int64_t bandwidth_limit,
int detach,
int blk,
int inc)
{
FdMigrationState *s;
s = qemu_mallocz(sizeof(*s));
s->fd = monitor_get_fd(mon, fdname);
if (s->fd == -1) {
DPRINTF("fd_migration: invalid file descriptor identifier\n");
goto err_after_alloc;
}
if (fcntl(s->fd, F_SETFL, O_NONBLOCK) == -1) {
DPRINTF("Unable to set nonblocking mode on file descriptor\n");
goto err_after_open;
}
s->get_error = fd_errno;
s->write = fd_write;
s->close = fd_close;
s->mig_state.cancel = migrate_fd_cancel;
s->mig_state.get_status = migrate_fd_get_status;
s->mig_state.release = migrate_fd_release;
s->mig_state.blk = blk;
s->mig_state.shared = inc;
s->state = MIG_STATE_ACTIVE;
s->mon = NULL;
s->bandwidth_limit = bandwidth_limit;
if (!detach) {
migrate_fd_monitor_suspend(s, mon);
}
migrate_fd_connect(s);
return &s->mig_state;
err_after_open:
close(s->fd);
err_after_alloc:
qemu_free(s);
return NULL;
}
void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **errp)
{
QIOChannel *ioc;
int fd = monitor_get_fd(cur_mon, fdname, errp);
if (fd == -1) {
return;
}
trace_migration_fd_outgoing(fd);
ioc = qio_channel_new_fd(fd, errp);
if (!ioc) {
close(fd);
return;
}
qio_channel_set_name(QIO_CHANNEL(ioc), "migration-fd-outgoing");
migration_channel_connect(s, ioc, NULL);
object_unref(OBJECT(ioc));
}
static int socket_get_fd(const char *fdstr, Error **errp)
{
int fd;
if (cur_mon) {
fd = monitor_get_fd(cur_mon, fdstr, errp);
if (fd < 0) {
return -1;
}
} else {
if (qemu_strtoi(fdstr, NULL, 10, &fd) < 0) {
error_setg_errno(errp, errno,
"Unable to parse FD number %s",
fdstr);
return -1;
}
}
if (!fd_is_socket(fd)) {
error_setg(errp, "File descriptor '%s' is not a socket", fdstr);
close(fd);
return -1;
}
return fd;
}