icmpEchoReply.c File Reference

#include <icmp.h>
#include <network.h>
#include <ipv4.h>
#include <string.h>

Functions
syscall	icmpEchoReply (struct packet *pkt)

Function Documentation

syscall icmpEchoReply

(

struct packet *

pkt

)

Send an ICMP Echo Reply in response to the specified ICMP Echo Request.

Parameters

pkt

Pointer to the packet for an ICMP echo request. This packet buffer is re-used for sending the reply. pkt->curr must point to the beginning of the the ICMP header, whereas pkt->len must be the length of the entire packet including link-level header. These members will be updated by this function, and the ICMP type field and checksum will be modified; however, ownership of the packet is not taken and it still must be freed by the caller.

Returns

::OK if packet was successfully sent; otherwise ::SYSERR or another error code returned by icmpSend().