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https://github.com/openvswitch/ovs
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32 lines
1.1 KiB
C
32 lines
1.1 KiB
C
/*
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* Copyright (c) 2008 Nicira Networks.
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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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#ifndef CSUM_H
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#define CSUM_H 1
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#include <stddef.h>
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#include <stdint.h>
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uint16_t csum(const void *, size_t);
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uint32_t csum_add16(uint32_t partial, uint16_t);
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uint32_t csum_add32(uint32_t partial, uint32_t);
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uint32_t csum_continue(uint32_t partial, const void *, size_t);
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uint16_t csum_finish(uint32_t partial);
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uint16_t recalc_csum16(uint16_t old_csum, uint16_t old_u16, uint16_t new_u16);
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uint16_t recalc_csum32(uint16_t old_csum, uint32_t old_u32, uint32_t new_u32);
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#endif /* csum.h */
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