32 #include <sys/ioctl.h>
56     if (ioctl(fd, TUNGETFEATURES, &features) == -1) {  in tap_open()
82          * Ignore errors since old kernels do not support this ioctl: in this  in tap_open()
85         ioctl(fd, TUNSETVNETHDRSZ, &len);  in tap_open()
103     ret = ioctl(fd, TUNSETIFF, (void *) &ifr);  in tap_open()
144     if (ioctl(fd, TUNSETSNDBUF, &sndbuf) == -1 && tap->has_sndbuf) {  in tap_set_sndbuf()
145         error_setg_errno(errp, errno, "TUNSETSNDBUF ioctl failed");  in tap_set_sndbuf()
154     if (ioctl(fd, TUNGETIFF, &ifr) != 0) {  in tap_probe_vnet_hdr()
170     if (ioctl(fd, TUNSETOFFLOAD, offload) < 0)  in tap_probe_has_ufo()
182     if (ioctl(fd, TUNSETOFFLOAD, offload) < 0) {  in tap_probe_has_uso()
190     if (ioctl(fd, TUNSETVNETHDRSZ, &len) == -1) {  in tap_fd_set_vnet_hdr_len()
191         fprintf(stderr, "TUNSETVNETHDRSZ ioctl() failed: %s. Exiting.\n",  in tap_fd_set_vnet_hdr_len()
201     if (!ioctl(fd, TUNSETVNETLE, &arg)) {  in tap_fd_set_vnet_le()
210     error_report("TUNSETVNETLE ioctl() failed: %s.", strerror(errno));  in tap_fd_set_vnet_le()
218     if (!ioctl(fd, TUNSETVNETBE, &arg)) {  in tap_fd_set_vnet_be()
227     error_report("TUNSETVNETBE ioctl() failed: %s.", strerror(errno));  in tap_fd_set_vnet_be()
237     if (ioctl(fd, TUNSETOFFLOAD, 0) != 0 && errno == EINVAL) {  in tap_fd_set_offload()
259     if (ioctl(fd, TUNSETOFFLOAD, offload) != 0) {  in tap_fd_set_offload()
261         if (ioctl(fd, TUNSETOFFLOAD, offload) != 0) {  in tap_fd_set_offload()
263             if (ioctl(fd, TUNSETOFFLOAD, offload) != 0) {  in tap_fd_set_offload()
264                 fprintf(stderr, "TUNSETOFFLOAD ioctl() failed: %s\n",  in tap_fd_set_offload()
280     ret = ioctl(fd, TUNSETQUEUE, (void *) &ifr);  in tap_fd_enable()
298     ret = ioctl(fd, TUNSETQUEUE, (void *) &ifr);  in tap_fd_disable()
311     if (ioctl(fd, TUNGETIFF, &ifr) != 0) {  in tap_fd_get_ifname()
312         error_report("TUNGETIFF ioctl() failed: %s",  in tap_fd_get_ifname()
323     if (ioctl(fd, TUNSETSTEERINGEBPF, (void *) &prog_fd) != 0) {  in tap_fd_set_steering_ebpf()