32 #include <sys/ioctl.h>
67     if (ioctl(fd, TUNGETFEATURES, &features) == -1) {  in tap_open()
93          * Ignore errors since old kernels do not support this ioctl: in this  in tap_open()
96         ioctl(fd, TUNSETVNETHDRSZ, &len);  in tap_open()
114     ret = ioctl(fd, TUNSETIFF, (void *) &ifr);  in tap_open()
155     if (ioctl(fd, TUNSETSNDBUF, &sndbuf) == -1 && tap->has_sndbuf) {  in tap_set_sndbuf()
156         error_setg_errno(errp, errno, "TUNSETSNDBUF ioctl failed");  in tap_set_sndbuf()
165     if (ioctl(fd, TUNGETIFF, &ifr) != 0) {  in tap_probe_vnet_hdr()
181     if (ioctl(fd, TUNSETOFFLOAD, offload) < 0)  in tap_probe_has_ufo()
193     if (ioctl(fd, TUNSETOFFLOAD, offload) < 0) {  in tap_probe_has_uso()
201     if (ioctl(fd, TUNSETVNETHDRSZ, &len) == -1) {  in tap_fd_set_vnet_hdr_len()
202         fprintf(stderr, "TUNSETVNETHDRSZ ioctl() failed: %s. Exiting.\n",  in tap_fd_set_vnet_hdr_len()
212     if (!ioctl(fd, TUNSETVNETLE, &arg)) {  in tap_fd_set_vnet_le()
221     error_report("TUNSETVNETLE ioctl() failed: %s.", strerror(errno));  in tap_fd_set_vnet_le()
229     if (!ioctl(fd, TUNSETVNETBE, &arg)) {  in tap_fd_set_vnet_be()
238     error_report("TUNSETVNETBE ioctl() failed: %s.", strerror(errno));  in tap_fd_set_vnet_be()
248     if (ioctl(fd, TUNSETOFFLOAD, 0) != 0 && errno == EINVAL) {  in tap_fd_set_offload()
270     if (ioctl(fd, TUNSETOFFLOAD, offload) != 0) {  in tap_fd_set_offload()
272         if (ioctl(fd, TUNSETOFFLOAD, offload) != 0) {  in tap_fd_set_offload()
274             if (ioctl(fd, TUNSETOFFLOAD, offload) != 0) {  in tap_fd_set_offload()
275                 fprintf(stderr, "TUNSETOFFLOAD ioctl() failed: %s\n",  in tap_fd_set_offload()
291     ret = ioctl(fd, TUNSETQUEUE, (void *) &ifr);  in tap_fd_enable()
309     ret = ioctl(fd, TUNSETQUEUE, (void *) &ifr);  in tap_fd_disable()
322     if (ioctl(fd, TUNGETIFF, &ifr) != 0) {  in tap_fd_get_ifname()
323         error_report("TUNGETIFF ioctl() failed: %s",  in tap_fd_get_ifname()
334     if (ioctl(fd, TUNSETSTEERINGEBPF, (void *) &prog_fd) != 0) {  in tap_fd_set_steering_ebpf()