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Added DHCP and BootP constructors from uint8_t buffer. Normalized IP destination and source address getters/setters.

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This commit is contained in:
Matias Fontanini
2011-08-19 10:13:35 -03:00
parent bb3ea10209
commit 3e2168f6fc
17 changed files with 161 additions and 73 deletions
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16
examples/arpspoofing.cpp
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@@ -47,20 +47,21 @@ int do_arp_spoofing(uint32_t iface, const string &iface_name, uint32_t gw, uint3
cout << "Could not resolve victim's ip address.\n";
return 6;
}
// Print out the hw addresses we're using.
cout << " Using gateway hw address: " << Utils::hwaddr_to_string(gw_hw) << "\n";
cout << " Using victim hw address: " << Utils::hwaddr_to_string(victim_hw) << "\n";
cout << " Using own hw address: " << Utils::hwaddr_to_string(own_hw) << "\n";
/* We tell the gateway that the victim is at out hw address,
* and tell the victim that the gateway is at out hw address */
ARP *gw_arp = new ARP(gw, victim, gw_hw, own_hw),
ARP *gw_arp = new ARP(gw, victim, gw_hw, own_hw),
*victim_arp = new ARP(victim, gw, victim_hw, own_hw);
// We are "replying" ARP requests
gw_arp->opcode(ARP::REPLY);
victim_arp->opcode(ARP::REPLY);
/* The packet we'll send to the gateway and victim.
* We include ut hw address as the source address
* We include our hw address as the source address
* in ethernet layer, to avoid possible packet dropping
* performed by any routers. */
EthernetII to_gw(iface, gw_hw, own_hw, gw_arp);
@@ -74,12 +75,10 @@ int do_arp_spoofing(uint32_t iface, const string &iface_name, uint32_t gw, uint3
}
int main(int argc, char *argv[]) {
if(argc < 3 && cout << "Usage: " << *argv << " <Gateway> <Victim> [Interface=eth0]\n")
if(argc != 3 && cout << "Usage: " << *argv << " <Gateway> <Victim>\n")
return 1;
uint32_t gw, victim, own_ip;
uint8_t own_hw[6];
// By default, eth0 is used.
string iface("eth0");
try {
// Convert dotted-notation ip addresses to integer.
gw = Utils::ip_to_int(argv[1]);
@@ -89,9 +88,10 @@ int main(int argc, char *argv[]) {
cout << "Invalid ip found...\n";
return 2;
}
if(argc == 4)
iface = argv[3];
// Get the interface which will be the gateway for our requests.
string iface = Utils::interface_from_ip(gw);
cout << iface << "\n";
uint32_t iface_index;
// Lookup the interface id. This will be required while forging packets.
if(!Utils::interface_id(iface, iface_index) && cout << "Interface " << iface << " does not exist!\n")