On Mon, Jan 6, 2014 at 5:03 PM, John Spencer <[email protected]> wrote: > i've been able to get the SOCK_DGRAM stuff to work with a little help of > Vasily, author of the kernel patch. > > see attached proof-of-concept patch. > i'm aware that it doesnt use xbind() and other busybox replacement funcs. > getting it into a more busybox-ish shape is something i leave as a task for > someone more familiar with the busybox internals. > > note that i didn't test if the added getsockopt calls are strictly needed, i > added them because they were in the original iputils patch. > > in general the following differences exist between SOCK_RAW and SOCK_DGRAM > handling: > > 1) the received packet is a raw icmp packet, not an IP one, so it lacks the > header and is shorter. > 2) the ident (myid) of the packet is sin(6)_port of the sockaddr struct > after doing a bind() and getsockname() on the dgram socket. > > the patch works for both "fancy" ping(6), and "non-fancy" ping(6) (the > latter just sends one packet and displays whether it was successful or not, > without further info).
This seems to lead to a significantly larger code. Making ping suid wasn't such a big problem before, so why should we have all these complications now? _______________________________________________ busybox mailing list [email protected] http://lists.busybox.net/mailman/listinfo/busybox
