Traceroute example not working on OS X about libtins HOT 7 CLOSED

You need to run it as root. Have you tried that?
On Oct 31, 2014 7:15 PM, "Diogo Mónica" [email protected] wrote:

Im on a Macbook Pro running 10.9.5.

Compiling the latest version from github (master):
$ g++ traceroute.cpp -o traceroute -O3 -std=c++11 -lpthread -ltins
Running with any IPs:
$ ./traceroute 10.0.1.1
libc++abi.dylib: terminating
Abort trap: 6

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#42.

from libtins.

I haven't tried that, but if I've been able run the example above that also
creates a packet from scratch without root privileges, why would trac route
require it?! Is it because we changing the TTL field?!
On Fri, Oct 31, 2014 at 8:34 PM Matias Fontanini [email protected]
wrote:

You need to run it as root. Have you tried that?
On Oct 31, 2014 7:15 PM, "Diogo Mónica" [email protected] wrote:

Im on a Macbook Pro running 10.9.5.

Compiling the latest version from github (master):
$ g++ traceroute.cpp -o traceroute -O3 -std=c++11 -lpthread -ltins
Running with any IPs:
$ ./traceroute 10.0.1.1
libc++abi.dylib: terminating
Abort trap: 6

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#42.

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#42 (comment).

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You need root to send an receive raw packets. Just like you implicitly need
root to run ping or traceroute (implicitly because they're both SUID
binaries).
On Oct 31, 2014 8:37 PM, "Diogo Mónica" [email protected] wrote:

I haven't tried that, but if I've been able run the example above that
also
creates a packet from scratch without root privileges, why would trac
route
require it?! Is it because we changing the TTL field?!
On Fri, Oct 31, 2014 at 8:34 PM Matias Fontanini [email protected]

wrote:

You need to run it as root. Have you tried that?
On Oct 31, 2014 7:15 PM, "Diogo Mónica" [email protected]
wrote:

Im on a Macbook Pro running 10.9.5.

Compiling the latest version from github (master):
$ g++ traceroute.cpp -o traceroute -O3 -std=c++11 -lpthread -ltins
Running with any IPs:
$ ./traceroute 10.0.1.1
libc++abi.dylib: terminating
Abort trap: 6

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#42.

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#42 (comment).

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#42 (comment).

from libtins.

Traceroute does work with sudo, sorry for not checking that first.

I guess my question still maintains though, why can I run this program without root:

using namespace Tins;
int main() {
    NetworkInterface iface = NetworkInterface::default_interface();
    NetworkInterface::Info info = iface.addresses();
    EthernetII eth("77:22:33:11:ad:ad", info.hw_addr);
    eth /= IP("192.168.0.1", info.ip_addr);
    eth /= TCP(13, 15);
    eth /= RawPDU("I'm a payload!");
    PacketSender sender;
    sender.send(eth, iface);
}

Isn't this a raw packet too?

from libtins.

Hi

I'm no expert and I haven't used PacketSender, but the raw packet is
wrapped into an IP/TCP header, so it is no longer a raw packet - it's just
a payload.

Cheers
Einar Jón

On 2 November 2014 00:33, Diogo Mónica [email protected] wrote:

Traceroute does work with sudo, sorry for not checking that first.

I guess my question still maintains:

Why can I run this program without root:

using namespace Tins;
int main() {
NetworkInterface iface = NetworkInterface::default_interface();
NetworkInterface::Info info = iface.addresses();
EthernetII eth("77:22:33:11:ad:ad", info.hw_addr);
eth /= IP("192.168.0.1", info.ip_addr);
eth /= TCP(13, 15);
eth /= RawPDU("I'm a payload!");
PacketSender sender;
sender.send(eth, iface);
}

Isn't this a raw packet too?

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#42 (comment).

Regards
Einar Jón
+36 30 31 43 665

from libtins.

I've just tested that and I'm surprised that it works. I'm not very used to OSX, so I don't really know which permissions you would need to do this, but you shouldn't be able to use it without root. That won't work on Linux for sure.

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Agreed, that is exactly what threw me off. Thank you Matias.

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