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

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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
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17
src/ip.cpp
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@@ -22,6 +22,7 @@
#include <stdexcept>
#include <cstring>
#include <cassert>
#include <algorithm>
#ifndef WIN32
#include <netdb.h>
#include <sys/socket.h>
@@ -143,11 +144,6 @@ Tins::IP::IP(const uint8_t *buffer, uint32_t total_sz) : PDU(Constants::IP::PROT
}
}
Tins::IP::IP(const iphdr *ptr) : PDU(Constants::IP::PROTO_IP) {
std::memcpy(&_ip, ptr, sizeof(iphdr));
/* Options... */
}
Tins::IP::IP(uint32_t ip_dst, uint32_t ip_src, PDU *child) : PDU(Constants::IP::PROTO_IP, child) {
init_ip_fields();
_ip.daddr = ip_dst;
@@ -350,15 +346,10 @@ Tins::PDU *Tins::IP::clone_packet(const uint8_t *ptr, uint32_t total_sz) {
return 0;
PDU *child = 0, *cloned;
if(total_sz > sz) {
if(inner_pdu()) {
child = inner_pdu()->clone_packet(ptr + sz, total_sz - sz);
if(!child)
return 0;
}
else
child = new RawPDU(ptr + sz, total_sz - sz);
if((child = PDU::clone_inner_pdu(ptr + sizeof(_ip), total_sz - sizeof(_ip))) == 0)
return 0;
}
cloned = new IP(ip_ptr);
cloned = new IP(ptr, std::min(total_sz, (uint32_t)(Utils::net_to_host_s(ip_ptr->tot_len) * sizeof(uint32_t))));
cloned->inner_pdu(child);
return cloned;
}