c80cd6bb9c
The linux tap and macvtap backends can be told to parse vnet headers according to little or big endian. This is done through the TUNSETVNETLE and TUNSETVNETBE ioctls. This patch brings all the plumbing for QEMU to use these APIs. Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
50 lines
2.0 KiB
C
50 lines
2.0 KiB
C
/*
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* QEMU System Emulator
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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* Copyright (c) 2009 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef QEMU_TAP_H
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#define QEMU_TAP_H
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#include "qemu-common.h"
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#include "qapi-types.h"
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int tap_open(char *ifname, int ifname_size, int *vnet_hdr,
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int vnet_hdr_required, int mq_required, Error **errp);
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ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen);
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void tap_set_sndbuf(int fd, const NetdevTapOptions *tap, Error **errp);
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int tap_probe_vnet_hdr(int fd);
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int tap_probe_vnet_hdr_len(int fd, int len);
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int tap_probe_has_ufo(int fd);
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void tap_fd_set_offload(int fd, int csum, int tso4, int tso6, int ecn, int ufo);
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void tap_fd_set_vnet_hdr_len(int fd, int len);
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int tap_fd_set_vnet_le(int fd, int vnet_is_le);
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int tap_fd_set_vnet_be(int fd, int vnet_is_be);
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int tap_fd_enable(int fd);
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int tap_fd_disable(int fd);
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int tap_fd_get_ifname(int fd, char *ifname);
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#endif /* QEMU_TAP_H */
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