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41 lines
1.3 KiB
41 lines
1.3 KiB
/*
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* Copyright 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* common.h - common definitions
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*/
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#ifndef __CLATD_COMMON_H__
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#define __CLATD_COMMON_H__
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#include <sys/uio.h>
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// A clat_packet is an array of iovec structures representing a packet that we are translating.
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// The CLAT_POS_XXX constants represent the array indices within the clat_packet that contain
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// specific parts of the packet. The packet_* functions operate on all the packet segments past a
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// given position.
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typedef enum {
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CLAT_POS_TUNHDR,
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CLAT_POS_IPHDR,
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CLAT_POS_FRAGHDR,
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CLAT_POS_TRANSPORTHDR,
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CLAT_POS_ICMPERR_IPHDR,
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CLAT_POS_ICMPERR_FRAGHDR,
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CLAT_POS_ICMPERR_TRANSPORTHDR,
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CLAT_POS_PAYLOAD,
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CLAT_POS_MAX
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} clat_packet_index;
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typedef struct iovec clat_packet[CLAT_POS_MAX];
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#endif /* __CLATD_COMMON_H__ */
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