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064af421 BP |
1 | /* |
2 | * Copyright (c) 2008 Nicira Networks. | |
3 | * | |
a14bc59f BP |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at: | |
064af421 | 7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
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15 | */ |
16 | ||
17 | #ifndef CSUM_H | |
18 | #define CSUM_H 1 | |
19 | ||
20 | #include <stddef.h> | |
21 | #include <stdint.h> | |
22 | ||
23 | uint16_t csum(const void *, size_t); | |
24 | uint32_t csum_add16(uint32_t partial, uint16_t); | |
25 | uint32_t csum_add32(uint32_t partial, uint32_t); | |
26 | uint32_t csum_continue(uint32_t partial, const void *, size_t); | |
27 | uint16_t csum_finish(uint32_t partial); | |
28 | uint16_t recalc_csum16(uint16_t old_csum, uint16_t old_u16, uint16_t new_u16); | |
29 | uint16_t recalc_csum32(uint16_t old_csum, uint32_t old_u32, uint32_t new_u32); | |
30 | ||
31 | #endif /* csum.h */ |