1 /* 2 * QEMU System Emulator 3 * 4 * Copyright (c) 2003-2008 Fabrice Bellard 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 25 #include "qemu/osdep.h" 26 #include "qapi/error.h" 27 #include "tap_int.h" 28 29 int tap_open(char *ifname, int ifname_size, int *vnet_hdr, 30 int vnet_hdr_required, int mq_required, Error **errp) 31 { 32 error_setg(errp, "tap is not supported in this build"); 33 return -1; 34 } 35 36 void tap_set_sndbuf(int fd, const NetdevTapOptions *tap, Error **errp) 37 { 38 } 39 40 int tap_probe_vnet_hdr(int fd, Error **errp) 41 { 42 return 0; 43 } 44 45 int tap_probe_has_ufo(int fd) 46 { 47 return 0; 48 } 49 50 int tap_probe_has_uso(int fd) 51 { 52 return 0; 53 } 54 55 int tap_probe_vnet_hdr_len(int fd, int len) 56 { 57 return 0; 58 } 59 60 void tap_fd_set_vnet_hdr_len(int fd, int len) 61 { 62 } 63 64 int tap_fd_set_vnet_le(int fd, int is_le) 65 { 66 return -EINVAL; 67 } 68 69 int tap_fd_set_vnet_be(int fd, int is_be) 70 { 71 return -EINVAL; 72 } 73 74 void tap_fd_set_offload(int fd, int csum, int tso4, 75 int tso6, int ecn, int ufo, int uso4, int uso6) 76 { 77 } 78 79 int tap_fd_enable(int fd) 80 { 81 return -1; 82 } 83 84 int tap_fd_disable(int fd) 85 { 86 return -1; 87 } 88 89 int tap_fd_get_ifname(int fd, char *ifname) 90 { 91 return -1; 92 } 93 94 int tap_fd_set_steering_ebpf(int fd, int prog_fd) 95 { 96 return -1; 97 } 98