| Lorenzo Colitti | 0aab036 | 2021-12-09 12:55:32 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2011 Daniel Drown |
| 3 | * |
| 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 |
| 7 | * |
| 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. |
| 15 | * |
| 16 | * checksum.h - checksum functions |
| 17 | */ |
| 18 | #ifndef __CHECKSUM_H__ |
| 19 | #define __CHECKSUM_H__ |
| 20 | |
| 21 | #include <netinet/ip.h> |
| 22 | #include <netinet/ip6.h> |
| 23 | #include <stdint.h> |
| 24 | |
| 25 | uint32_t ip_checksum_add(uint32_t current, const void* data, int len); |
| 26 | uint16_t ip_checksum_finish(uint32_t temp_sum); |
| 27 | uint16_t ip_checksum(const void* data, int len); |
| 28 | |
| 29 | uint32_t ipv6_pseudo_header_checksum(const struct ip6_hdr* ip6, uint32_t len, uint8_t protocol); |
| 30 | uint32_t ipv4_pseudo_header_checksum(const struct iphdr* ip, uint16_t len); |
| 31 | |
| 32 | uint16_t ip_checksum_adjust(uint16_t checksum, uint32_t old_hdr_sum, uint32_t new_hdr_sum); |
| 33 | |
| 34 | #endif /* __CHECKSUM_H__ */ |