ip-util.c File Reference

#include "config.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include "dnet.h"

Go to the source code of this file.

Functions
ssize_t	ip_add_option (void *buf, size_t len, int proto, const void *optbuf, size_t optlen)
void	ip_checksum (void *buf, size_t len)
int	ip_cksum_add (const void *buf, size_t len, int cksum)

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Function Documentation

ssize_t ip_add_option (  void *  buf, size_t  len, int  proto, const void *  optbuf, size_t  optlen )

Definition at line 18 of file ip-util.c. References errno, IP_HDR_LEN_MAX, ip_hdr::ip_hl, ip_hdr::ip_len, IP_OPT_NOP, IP_OPT_TYPEONLY, IP_PROTO_IP, IP_PROTO_TCP, memmove, memset, NULL, and tcp_hdr::th_off.

void ip_checksum (  void *  buf, size_t  len )

Definition at line 79 of file ip-util.c. References icmp_hdr::icmp_cksum, ICMP_HDR_LEN, ip_cksum_add(), ip_cksum_carry, IP_HDR_LEN, ip_hdr::ip_hl, IP_MF, IP_OFFMASK, IP_PROTO_ICMP, IP_PROTO_IGMP, IP_PROTO_TCP, IP_PROTO_UDP, ip_hdr::ip_sum, TCP_HDR_LEN, tcp_hdr::th_sum, UDP_HDR_LEN, and udp_hdr::uh_sum. Referenced by __pyx_f_4dnet_ip_checksum(), ip_main(), and ip_send().

int ip_cksum_add (  const void *  buf, size_t  len, int  cksum )

Definition at line 134 of file ip-util.c. Referenced by __pyx_f_4dnet_ip_cksum_add(), ip6_checksum(), and ip_checksum().

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