diff options
Diffstat (limited to 'net/ipv4.h')
| -rw-r--r-- | net/ipv4.h | 12 |
1 files changed, 7 insertions, 5 deletions
@@ -11,8 +11,11 @@ struct ipv4_hdr { uint8_t tos; // type of service uint16_t len; // total length of ip datagramm uint16_t id; // index of datagram for fragmentation - uint16_t flags : 3; // various control flags - uint16_t frag_offset : 13; // fragment offset 0 - first + + //uint16_t flags : 3; // various control flags + //uint16_t frag_offset : 13; // fragment offset 0 - first + uint16_t flags_and_offset; + uint8_t ttl; // time to live - countdown decreased by each receiver uint8_t proto; // payload protocol / 1-icmp, 16 - udp , 6 -tcp uint16_t csum; // header checksum @@ -20,6 +23,5 @@ struct ipv4_hdr { uint32_t daddr; // destination ip address } __attribute__((packed)); -uint16_t ipv4_checksum(void *addr, int count); -bool ipv4_incoming(struct netdev *,struct eth_hdr *); -uint16_t ipv4_checksum(void *addr, int count); +bool ipv4_incoming(struct netdev *,struct eth_hdr *); +uint32_t ipv4_generic(struct netdev *dev, uint32_t ip, uint8_t type, uint8_t* pos,uint8_t *end); |