3rd-party/libtins
1
0
Fork 0
mirror of https://github.com/mfontanini/libtins synced 2026-01-26 03:51:35 +01:00
Code Issues Releases Wiki Activity

Modified IP, ARP, ICMP and EthernetII's clone_packet.

Browse Source
This commit is contained in:
Matias Fontanini
2011-09-15 09:17:35 -03:00
parent 6b88a9a944
commit 4d8fb5a4e5
8 changed files with 23 additions and 66 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/arp.cpp
View File

@@ -22,6 +22,7 @@
#include <string>
#include <cstring>
#include <cassert>
#include <algorithm>
#include "arp.h"
#include "ip.h"
#include "ethernetII.h"
@@ -56,10 +57,6 @@ Tins::ARP::ARP(const uint8_t *buffer, uint32_t total_sz) : PDU(Utils::net_to_hos
inner_pdu(new RawPDU(buffer + sizeof(arphdr), total_sz));
}
Tins::ARP::ARP(const arphdr *arp_ptr) : PDU(Utils::net_to_host_s(Constants::Ethernet::ARP)) {
memcpy(&_arp, arp_ptr, sizeof(arphdr));
}
void Tins::ARP::sender_hw_addr(const uint8_t* new_snd_hw_addr) {
memcpy(this->_arp.ar_sha, new_snd_hw_addr, 6); //Should this use hardware address' length?
}
@@ -144,13 +141,12 @@ bool Tins::ARP::matches_response(uint8_t *ptr, uint32_t total_sz) {
Tins::PDU *Tins::ARP::clone_packet(const uint8_t *ptr, uint32_t total_sz) {
if(total_sz < sizeof(arphdr))
return 0;
const arphdr *arp_ptr = (arphdr*)ptr;
PDU *child = 0, *cloned;
if(total_sz > sizeof(arphdr)) {
if((child = PDU::clone_inner_pdu(ptr + sizeof(arphdr), total_sz - sizeof(arphdr))) == 0)
return 0;
}
cloned = new ARP(arp_ptr);
cloned = new ARP(ptr, std::min(total_sz, (uint32_t)sizeof(_arp)));
cloned->inner_pdu(child);
return cloned;
}