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Annotation of qemu/net/tap-linux.h, revision 1.1

1.1     ! root        1: /*
        !             2:  *  Universal TUN/TAP device driver.
        !             3:  *  Copyright (C) 1999-2000 Maxim Krasnyansky <[email protected]>
        !             4:  *
        !             5:  *  This program is free software; you can redistribute it and/or modify
        !             6:  *  it under the terms of the GNU General Public License as published by
        !             7:  *  the Free Software Foundation; either version 2 of the License, or
        !             8:  *  (at your option) any later version.
        !             9:  *
        !            10:  *  This program is distributed in the hope that it will be useful,
        !            11:  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            12:  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
        !            13:  *  GNU General Public License for more details.
        !            14:  */
        !            15: 
        !            16: #ifndef QEMU_TAP_H
        !            17: #define QEMU_TAP_H
        !            18: 
        !            19: #include <stdint.h>
        !            20: #ifdef __linux__
        !            21: 
        !            22: #include <linux/ioctl.h>
        !            23: 
        !            24: /* Ioctl defines */
        !            25: #define TUNSETIFF     _IOW('T', 202, int)
        !            26: #define TUNGETFEATURES _IOR('T', 207, unsigned int)
        !            27: #define TUNSETOFFLOAD  _IOW('T', 208, unsigned int)
        !            28: #define TUNGETIFF      _IOR('T', 210, unsigned int)
        !            29: #define TUNSETSNDBUF   _IOW('T', 212, int)
        !            30: 
        !            31: #endif
        !            32: 
        !            33: /* TUNSETIFF ifr flags */
        !            34: #define IFF_TAP                0x0002
        !            35: #define IFF_NO_PI      0x1000
        !            36: #define IFF_VNET_HDR   0x4000
        !            37: 
        !            38: /* Features for GSO (TUNSETOFFLOAD). */
        !            39: #define TUN_F_CSUM     0x01    /* You can hand me unchecksummed packets. */
        !            40: #define TUN_F_TSO4     0x02    /* I can handle TSO for IPv4 packets */
        !            41: #define TUN_F_TSO6     0x04    /* I can handle TSO for IPv6 packets */
        !            42: #define TUN_F_TSO_ECN  0x08    /* I can handle TSO with ECN bits. */
        !            43: #define TUN_F_UFO      0x10    /* I can handle UFO packets */
        !            44: 
        !            45: struct virtio_net_hdr
        !            46: {
        !            47:     uint8_t flags;
        !            48:     uint8_t gso_type;
        !            49:     uint16_t hdr_len;
        !            50:     uint16_t gso_size;
        !            51:     uint16_t csum_start;
        !            52:     uint16_t csum_offset;
        !            53: };
        !            54: 
        !            55: #endif /* QEMU_TAP_H */

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