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| author | Lawrence Brakmo <brakmo@fb.com> | 2017-06-30 20:02:46 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-01 16:15:13 -0700 |
| commit | 8c4b4c7e9ff0447995750d9329949fa082520269 (patch) | |
| tree | b4215d293911949d5373baef37c29ca0d09df1e3 /samples | |
| parent | c400296bf63d234899cf2448cd3d17199676f188 (diff) | |
| download | linux-stable-8c4b4c7e9ff0447995750d9329949fa082520269.tar.gz linux-stable-8c4b4c7e9ff0447995750d9329949fa082520269.tar.bz2 linux-stable-8c4b4c7e9ff0447995750d9329949fa082520269.zip | |
bpf: Add setsockopt helper function to bpf
Added support for calling a subset of socket setsockopts from
BPF_PROG_TYPE_SOCK_OPS programs. The code was duplicated rather
than making the changes to call the socket setsockopt function because
the changes required would have been larger.
The ops supported are:
SO_RCVBUF
SO_SNDBUF
SO_MAX_PACING_RATE
SO_PRIORITY
SO_RCVLOWAT
SO_MARK
Signed-off-by: Lawrence Brakmo <brakmo@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/bpf/bpf_helpers.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/samples/bpf/bpf_helpers.h b/samples/bpf/bpf_helpers.h index f4840b8bb8f9..d50ac342dc92 100644 --- a/samples/bpf/bpf_helpers.h +++ b/samples/bpf/bpf_helpers.h @@ -60,6 +60,9 @@ static unsigned long long (*bpf_get_prandom_u32)(void) = (void *) BPF_FUNC_get_prandom_u32; static int (*bpf_xdp_adjust_head)(void *ctx, int offset) = (void *) BPF_FUNC_xdp_adjust_head; +static int (*bpf_setsockopt)(void *ctx, int level, int optname, void *optval, + int optlen) = + (void *) BPF_FUNC_setsockopt; /* llvm builtin functions that eBPF C program may use to * emit BPF_LD_ABS and BPF_LD_IND instructions |