I'm sending this out only as RFC as the merge window is open anyway and Dave's pull request pending. My plan would be to get this work fully refined and remove some rough edges until net-next opens up again, submitting it as non-RFC. So for the time being similarly as the recent OVS eBPF action patchset this may serve as a discussion ground, also wrt to the BPF tutorial at netdev01 [1]. I presume on top of this e.g. Jiri might want to follow-up with act_bpf, I'm also open/happy to contribute to it. The series starts with a couple of cleanups and making the prog type infrastructure pluggable in eBPF. Most interesting is probably the last patch that adds actual support and the iproute2 bits from the link below. With regards to accessing fields from the context (here: skb), I leave that for future work just as we currently do in socket filters, also with regard to the currently ongoing ABI discussion from tracing side. Nevertheless, the state with these patches still allows for interesting functionality to be implemented as complex classifiers, e.g. such as a fully fledged C-like flow dissector as shown in bpf samples directory and the like. iproute2 part: http://git.breakpoint.cc/cgit/dborkman/iproute2.git/log/?h=ebpf I have configured and built LLVM with: --enable-experimental-targets=BPF [1] https://www.netdev01.org/sessions/15 Thanks ! Daniel Borkmann (7): ebpf: remove kernel test stubs ebpf: constify various function pointer structs ebpf: check first for MAXINSNS in bpf_prog_load ebpf: extend program type/subsystem registration ebpf: export BPF_PSEUDO_MAP_FD to uapi ebpf: remove CONFIG_BPF_SYSCALL ifdefs in socket filter code cls_bpf: add initial eBPF support for programmable classifiers include/linux/bpf.h | 46 +++++++--- include/linux/filter.h | 2 - include/uapi/linux/bpf.h | 3 + include/uapi/linux/pkt_cls.h | 1 + kernel/bpf/Makefile | 3 - kernel/bpf/arraymap.c | 6 +- kernel/bpf/hashtab.c | 6 +- kernel/bpf/helpers.c | 9 +- kernel/bpf/syscall.c | 96 +++++++++++++++------ kernel/bpf/test_stub.c | 78 ----------------- kernel/bpf/verifier.c | 28 ++++-- net/core/filter.c | 169 +++++++++++++++++------------------- net/sched/cls_bpf.c | 200 ++++++++++++++++++++++++++++++++----------- samples/bpf/libbpf.h | 4 +- samples/bpf/test_verifier.c | 5 +- 15 files changed, 374 insertions(+), 282 deletions(-) delete mode 100644 kernel/bpf/test_stub.c -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html