1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _NF_REJECT_H 3 #define _NF_REJECT_H 4 5 static inline bool nf_reject_verify_csum(__u8 proto) 6 { 7 /* Skip protocols that don't use 16-bit one's complement checksum 8 * of the entire payload. 9 */ 10 switch (proto) { 11 /* Protocols with other integrity checks. */ 12 case IPPROTO_AH: 13 case IPPROTO_ESP: 14 case IPPROTO_SCTP: 15 16 /* Protocols with partial checksums. */ 17 case IPPROTO_UDPLITE: 18 case IPPROTO_DCCP: 19 20 /* Protocols with optional checksums. */ 21 case IPPROTO_GRE: 22 return false; 23 } 24 return true; 25 } 26 27 #endif /* _NF_REJECT_H */ 28