int net_init_bridge(const NetClientOptions *opts, const char *name, NetClientState *peer, Error **errp) { /* FIXME error_setg(errp, ...) on failure */ const NetdevBridgeOptions *bridge; const char *helper, *br; TAPState *s; int fd, vnet_hdr; assert(opts->kind == NET_CLIENT_OPTIONS_KIND_BRIDGE); bridge = opts->bridge; helper = bridge->has_helper ? bridge->helper : DEFAULT_BRIDGE_HELPER; br = bridge->has_br ? bridge->br : DEFAULT_BRIDGE_INTERFACE; fd = net_bridge_run_helper(helper, br); if (fd == -1) { return -1; } fcntl(fd, F_SETFL, O_NONBLOCK); vnet_hdr = tap_probe_vnet_hdr(fd); s = net_tap_fd_init(peer, "bridge", name, fd, vnet_hdr); snprintf(s->nc.info_str, sizeof(s->nc.info_str), "helper=%s,br=%s", helper, br); return 0; }