diff options
Diffstat (limited to 'src/protocols/ip/ipv4_header.h')
| -rw-r--r-- | src/protocols/ip/ipv4_header.h | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/src/protocols/ip/ipv4_header.h b/src/protocols/ip/ipv4_header.h index 8f649ce..4de6fd0 100644 --- a/src/protocols/ip/ipv4_header.h +++ b/src/protocols/ip/ipv4_header.h @@ -33,7 +33,6 @@ namespace protocols { namespace ip { - // Internet Protocol, version 4 struct ipv4_header { @@ -53,20 +52,21 @@ struct ipv4_header OFFMASK = 0x1fff // mask for fragmenting bits }; - uint8_t ipv4_vhl; // header length and version - uint8_t ipv4_tos; // type of service - uint16_t ipv4_len; // total length - uint16_t ipv4_id; // identification - uint16_t ipv4_fragmentation;// fragmentation - uint8_t ipv4_ttl; // time to live - uint8_t ipv4_protocol; // protocol - uint16_t ipv4_checksum; // checksum - in_addr_t ipv4_src; // source address - in_addr_t ipv4_dst; // destination address -} __attribute__ ((__packed__)); + uint8_t ipv4_vhl; // header length and version + uint8_t ipv4_tos; // type of service + uint16_t ipv4_len; // total length + uint16_t ipv4_id; // identification + uint16_t ipv4_fragmentation; // fragmentation + uint8_t ipv4_ttl; // time to live + uint8_t ipv4_protocol; // protocol + uint16_t ipv4_checksum; // checksum + in_addr_t ipv4_src; // source address + in_addr_t ipv4_dst; // destination address +} __attribute__((__packed__)); struct IPv4Header : private ipv4_header { + // clang-format off inline uint8_t version() const { return ipv4_vhl >> 4; } inline uint8_t ihl() const { return (ipv4_vhl & 0x0f) << 2 /* *4 */; } // return number of bytes inline uint16_t length() const { return ntohs(ipv4_len); } @@ -81,11 +81,12 @@ struct IPv4Header : private ipv4_header { return ipv4_fragmentation & htons(OFFMASK) /*offset() != 0*/; } -} __attribute__ ((__packed__)); + // clang-format on +} __attribute__((__packed__)); } // namespace ip } // namespace protocols } // namespace NST //------------------------------------------------------------------------------ -#endif//IPV4_HEADER_H +#endif // IPV4_HEADER_H //------------------------------------------------------------------------------ |