Daniel Borkmann 96be4325f4 ebpf: add sched_cls_type and map it to sk_filter's verifier ops ... As discussed recently and at netconf/netdev01, we want to prevent making bpf_verifier_ops registration available for modules, but have them at a controlled place inside the kernel instead. The reason for this is, that out-of-tree modules can go crazy and define and register any verfifier ops they want, doing all sorts of crap, even bypassing available GPLed eBPF helper functions. We don't want to offer such a shiny playground, of course, but keep strict control to ourselves inside the core kernel. This also encourages us to design eBPF user helpers carefully and generically, so they can be shared among various subsystems using eBPF. For the eBPF traffic classifier (cls_bpf), it's a good start to share the same helper facilities as we currently do in eBPF for socket filters. That way, we have BPF_PROG_TYPE_SCHED_CLS look like it's own type, thus one day if there's a good reason to diverge the set of helper functions from the set available to socket filters, we keep ABI compatibility. In future, we could place all bpf_prog_type_list at a central place, perhaps. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-03-01 14:05:19 -05:00
..
arraymap.c	ebpf: constify various function pointer structs	2015-03-01 14:05:18 -05:00
core.c	module: remove mod arg from module_free, rename module_memfree().	2015-01-20 11:38:33 +10:30
hashtab.c	ebpf: constify various function pointer structs	2015-03-01 14:05:18 -05:00
helpers.c	ebpf: constify various function pointer structs	2015-03-01 14:05:18 -05:00
Makefile	ebpf: remove kernel test stubs	2015-03-01 14:05:18 -05:00
syscall.c	bpf: rcu lock must not be held when calling copy_to_user()	2015-01-26 17:20:40 -08:00
verifier.c	ebpf: add sched_cls_type and map it to sk_filter's verifier ops	2015-03-01 14:05:19 -05:00