Daniel Borkmann 42984d7c1e bpf: add sample usages for persistent maps/progs ...

This patch adds a couple of stand-alone examples on how BPF_OBJ_PIN
and BPF_OBJ_GET commands can be used.

Example with maps:

  # ./fds_example -F /sys/fs/bpf/m -P -m -k 1 -v 42
  bpf: map fd:3 (Success)
  bpf: pin ret:(0,Success)
  bpf: fd:3 u->(1:42) ret:(0,Success)
  # ./fds_example -F /sys/fs/bpf/m -G -m -k 1
  bpf: get fd:3 (Success)
  bpf: fd:3 l->(1):42 ret:(0,Success)
  # ./fds_example -F /sys/fs/bpf/m -G -m -k 1 -v 24
  bpf: get fd:3 (Success)
  bpf: fd:3 u->(1:24) ret:(0,Success)
  # ./fds_example -F /sys/fs/bpf/m -G -m -k 1
  bpf: get fd:3 (Success)
  bpf: fd:3 l->(1):24 ret:(0,Success)

  # ./fds_example -F /sys/fs/bpf/m2 -P -m
  bpf: map fd:3 (Success)
  bpf: pin ret:(0,Success)
  # ./fds_example -F /sys/fs/bpf/m2 -G -m -k 1
  bpf: get fd:3 (Success)
  bpf: fd:3 l->(1):0 ret:(0,Success)
  # ./fds_example -F /sys/fs/bpf/m2 -G -m
  bpf: get fd:3 (Success)

Example with progs:

  # ./fds_example -F /sys/fs/bpf/p -P -p
  bpf: prog fd:3 (Success)
  bpf: pin ret:(0,Success)
  bpf sock:4 <- fd:3 attached ret:(0,Success)
  # ./fds_example -F /sys/fs/bpf/p -G -p
  bpf: get fd:3 (Success)
  bpf: sock:4 <- fd:3 attached ret:(0,Success)

  # ./fds_example -F /sys/fs/bpf/p2 -P -p -o ./sockex1_kern.o
  bpf: prog fd:5 (Success)
  bpf: pin ret:(0,Success)
  bpf: sock:3 <- fd:5 attached ret:(0,Success)
  # ./fds_example -F /sys/fs/bpf/p2 -G -p
  bpf: get fd:3 (Success)
  bpf: sock:4 <- fd:3 attached ret:(0,Success)

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2015-11-02 22:48:39 -05:00

..

bpf_helpers.h

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2015-11-01 00:15:30 -04:00

bpf_load.c

samples/bpf: bpf_tail_call example for tracing

2015-05-21 17:07:59 -04:00

bpf_load.h

samples/bpf: Add simple non-portable kprobe filter example

2015-04-02 13:25:50 +02:00

fds_example.c

bpf: add sample usages for persistent maps/progs

2015-11-02 22:48:39 -05:00

lathist_kern.c

bpf: BPF based latency tracing

2015-06-23 06:09:58 -07:00

lathist_user.c

bpf: BPF based latency tracing

2015-06-23 06:09:58 -07:00

libbpf.c

bpf: add sample usages for persistent maps/progs

2015-11-02 22:48:39 -05:00

libbpf.h

bpf: add sample usages for persistent maps/progs

2015-11-02 22:48:39 -05:00

Makefile

bpf: add sample usages for persistent maps/progs

2015-11-02 22:48:39 -05:00

sock_example.c

samples/bpf: Add simple non-portable kprobe filter example

2015-04-02 13:25:50 +02:00

sockex1_kern.c

samples: bpf: add skb->field examples and tests

2015-03-15 22:02:28 -04:00

sockex1_user.c

samples: bpf: add skb->field examples and tests

2015-03-15 22:02:28 -04:00

sockex2_kern.c

samples: bpf: add skb->field examples and tests

2015-03-15 22:02:28 -04:00

sockex2_user.c

samples: bpf: add skb->field examples and tests

2015-03-15 22:02:28 -04:00

sockex3_kern.c

bpf: allow programs to write to certain skb fields

2015-06-07 02:01:33 -07:00

sockex3_user.c

samples/bpf: bpf_tail_call example for networking

2015-05-21 17:07:59 -04:00

tcbpf1_kern.c

bpf: add bpf_redirect() helper

2015-09-17 21:09:07 -07:00

test_maps.c

samples: bpf: relax test_maps check

2015-01-26 17:20:40 -08:00

test_verifier.c

bpf: add unprivileged bpf tests

2015-10-12 19:13:37 -07:00

trace_output_kern.c

samples: bpf: add bpf_perf_event_output example

2015-10-22 06:42:15 -07:00

trace_output_user.c

samples: bpf: add bpf_perf_event_output example

2015-10-22 06:42:15 -07:00

tracex1_kern.c

samples: bpf: enable trace samples for s390x

2015-07-08 15:17:45 -07:00

tracex1_user.c

samples/bpf: Add simple non-portable kprobe filter example

2015-04-02 13:25:50 +02:00

tracex2_kern.c

samples: bpf: enable trace samples for s390x

2015-07-08 15:17:45 -07:00

tracex2_user.c

bpf: introduce current->pid, tgid, uid, gid, comm accessors

2015-06-15 15:53:50 -07:00

tracex3_kern.c

samples: bpf: enable trace samples for s390x

2015-07-08 15:17:45 -07:00

tracex3_user.c

samples/bpf: Add IO latency analysis (iosnoop/heatmap) tool

2015-04-02 13:25:51 +02:00

tracex4_kern.c

samples: bpf: enable trace samples for s390x

2015-07-08 15:17:45 -07:00

tracex4_user.c

samples/bpf: Add kmem_alloc()/free() tracker tool

2015-04-02 13:25:51 +02:00

tracex5_kern.c

samples: bpf: enable trace samples for s390x

2015-07-08 15:17:45 -07:00

tracex5_user.c

samples/bpf: bpf_tail_call example for tracing

2015-05-21 17:07:59 -04:00

tracex6_kern.c

bpf: fix build warnings and add function read_trace_pipe()

2015-08-12 16:39:12 -07:00

tracex6_user.c

bpf: fix build warnings and add function read_trace_pipe()

2015-08-12 16:39:12 -07:00